diff options
Diffstat (limited to 'src/grp-initprogs')
133 files changed, 14791 insertions, 0 deletions
diff --git a/src/grp-initprogs/GNUmakefile b/src/grp-initprogs/GNUmakefile new file mode 120000 index 0000000000..54fdd42278 --- /dev/null +++ b/src/grp-initprogs/GNUmakefile @@ -0,0 +1 @@ +../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/Makefile b/src/grp-initprogs/Makefile new file mode 100644 index 0000000000..2cf2214e2a --- /dev/null +++ b/src/grp-initprogs/Makefile @@ -0,0 +1,44 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +nested.subdirs += grp-sleep +nested.subdirs += systemd-backlight +nested.subdirs += systemd-binfmt +nested.subdirs += systemd-detect-virt +nested.subdirs += systemd-firstboot +nested.subdirs += systemd-fsck +nested.subdirs += systemd-modules-load +nested.subdirs += systemd-quotacheck +nested.subdirs += systemd-random-seed +nested.subdirs += systemd-rfkill +nested.subdirs += systemd-sysctl +nested.subdirs += systemd-sysusers +nested.subdirs += systemd-tmpfiles +nested.subdirs += systemd-update-done +nested.subdirs += systemd-update-utmp +nested.subdirs += systemd-user-sessions +nested.subdirs += systemd-vconsole-setup + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/grp-sleep/GNUmakefile b/src/grp-initprogs/grp-sleep/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/grp-sleep/Makefile b/src/grp-initprogs/grp-sleep/Makefile new file mode 100644 index 0000000000..5a3a87d2bf --- /dev/null +++ b/src/grp-initprogs/grp-sleep/Makefile @@ -0,0 +1,30 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +nested.subdirs += systemd-hibernate-resume +nested.subdirs += systemd-hibernate-resume-generator +nested.subdirs += systemd-sleep + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/grp-sleep/systemd-hibernate-resume-generator/GNUmakefile b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume-generator/GNUmakefile new file mode 120000 index 0000000000..13308a50cd --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume-generator/GNUmakefile @@ -0,0 +1 @@ +../../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/grp-sleep/systemd-hibernate-resume-generator/Makefile b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume-generator/Makefile new file mode 100644 index 0000000000..835f2a37b2 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume-generator/Makefile @@ -0,0 +1,38 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_HIBERNATE),) +systemgenerator_PROGRAMS += \ + systemd-hibernate-resume-generator + +systemd_hibernate_resume_generator_SOURCES = \ + src/hibernate-resume/hibernate-resume-generator.c + +systemd_hibernate_resume_generator_LDADD = \ + libsystemd-shared.la + +endif # ENABLE_HIBERNATE + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/grp-sleep/systemd-hibernate-resume-generator/hibernate-resume-generator.c b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume-generator/hibernate-resume-generator.c new file mode 100644 index 0000000000..de440853db --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume-generator/hibernate-resume-generator.c @@ -0,0 +1,99 @@ +/*** + This file is part of systemd. + + Copyright 2014 Ivan Shapovalov + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <stdio.h> + +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/log.h" +#include "systemd-basic/mkdir.h" +#include "systemd-basic/proc-cmdline.h" +#include "systemd-basic/special.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/unit-name.h" +#include "systemd-basic/util.h" +#include "systemd-shared/fstab-util.h" + +static const char *arg_dest = "/tmp"; +static char *arg_resume_dev = NULL; + +static int parse_proc_cmdline_item(const char *key, const char *value, void *data) { + + if (streq(key, "resume") && value) { + free(arg_resume_dev); + arg_resume_dev = fstab_node_to_udev_node(value); + if (!arg_resume_dev) + return log_oom(); + } + + return 0; +} + +static int process_resume(void) { + _cleanup_free_ char *name = NULL, *lnk = NULL; + int r; + + if (!arg_resume_dev) + return 0; + + r = unit_name_from_path_instance("systemd-hibernate-resume", arg_resume_dev, ".service", &name); + if (r < 0) + return log_error_errno(r, "Failed to generate unit name: %m"); + + lnk = strjoin(arg_dest, "/" SPECIAL_SYSINIT_TARGET ".wants/", name, NULL); + if (!lnk) + return log_oom(); + + mkdir_parents_label(lnk, 0755); + if (symlink(SYSTEM_DATA_UNIT_PATH "/systemd-hibernate-resume@.service", lnk) < 0) + return log_error_errno(errno, "Failed to create symlink %s: %m", lnk); + + return 0; +} + +int main(int argc, char *argv[]) { + int r = 0; + + if (argc > 1 && argc != 4) { + log_error("This program takes three or no arguments."); + return EXIT_FAILURE; + } + + if (argc > 1) + arg_dest = argv[1]; + + log_set_target(LOG_TARGET_SAFE); + log_parse_environment(); + log_open(); + + umask(0022); + + /* Don't even consider resuming outside of initramfs. */ + if (!in_initrd()) + return EXIT_SUCCESS; + + r = parse_proc_cmdline(parse_proc_cmdline_item, NULL, false); + if (r < 0) + log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m"); + + r = process_resume(); + free(arg_resume_dev); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/grp-sleep/systemd-hibernate-resume-generator/systemd-hibernate-resume-generator.xml b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume-generator/systemd-hibernate-resume-generator.xml new file mode 100644 index 0000000000..d811b9b551 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume-generator/systemd-hibernate-resume-generator.xml @@ -0,0 +1,93 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2014 Ivan Shapovalov + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-hibernate-resume-generator"> + + <refentryinfo> + <title>systemd-hibernate-resume-generator</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Ivan</firstname> + <surname>Shapovalov</surname> + <email>intelfx100@gmail.com</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-hibernate-resume-generator</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-hibernate-resume-generator</refname> + <refpurpose>Unit generator for resume= kernel parameter</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>/usr/lib/systemd/system-generators/systemd-hibernate-resume-generator</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-hibernate-resume-generator</filename> is a + generator that instantiates + <citerefentry><refentrytitle>systemd-hibernate-resume@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> + unit according to the value of <option>resume=</option> parameter + specified on the kernel command line.</para> + </refsect1> + + <refsect1> + <title>Kernel Command Line</title> + + <para><filename>systemd-hibernate-resume-generator</filename> + understands the following kernel command line parameters:</para> + + <variablelist class='kernel-commandline-options'> + + <varlistentry> + <term><varname>resume=</varname></term> + + <listitem><para>Takes a path to the resume device. Both + persistent block device paths like + <filename>/dev/disk/by-foo/bar</filename> and + <citerefentry project='man-pages'><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>-style + specifiers like <literal>FOO=bar</literal> are + supported.</para></listitem> + </varlistentry> + + </variablelist> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-hibernate-resume@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>kernel-command-line</refentrytitle><manvolnum>7</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/GNUmakefile b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/GNUmakefile new file mode 120000 index 0000000000..13308a50cd --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/GNUmakefile @@ -0,0 +1 @@ +../../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/Makefile b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/Makefile new file mode 100644 index 0000000000..95f44744a2 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/Makefile @@ -0,0 +1,45 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_HIBERNATE),) + +rootlibexec_PROGRAMS += \ + systemd-hibernate-resume + +systemd_hibernate_resume_SOURCES = \ + src/hibernate-resume/hibernate-resume.c + +systemd_hibernate_resume_LDADD = \ + libsystemd-shared.la + +nodist_systemunit_DATA += \ + units/systemd-hibernate-resume@.service + +endif # ENABLE_HIBERNATE + +EXTRA_DIST += \ + units/systemd-hibernate-resume@.service.in + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/hibernate-resume.c b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/hibernate-resume.c new file mode 100644 index 0000000000..f41c6afef0 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/hibernate-resume.c @@ -0,0 +1,82 @@ +/*** + This file is part of systemd. + + Copyright 2014 Ivan Shapovalov + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <stdio.h> +#include <sys/stat.h> + +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/fileio.h" +#include "systemd-basic/log.h" +#include "systemd-basic/util.h" + +int main(int argc, char *argv[]) { + struct stat st; + const char *device; + _cleanup_free_ char *major_minor = NULL; + int r; + + if (argc != 2) { + log_error("This program expects one argument."); + return EXIT_FAILURE; + } + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + /* Refuse to run unless we are in an initrd() */ + if (!in_initrd()) + return EXIT_SUCCESS; + + device = argv[1]; + + if (stat(device, &st) < 0) { + log_error_errno(errno, "Failed to stat '%s': %m", device); + return EXIT_FAILURE; + } + + if (!S_ISBLK(st.st_mode)) { + log_error("Resume device '%s' is not a block device.", device); + return EXIT_FAILURE; + } + + if (asprintf(&major_minor, "%d:%d", major(st.st_rdev), minor(st.st_rdev)) < 0) { + log_oom(); + return EXIT_FAILURE; + } + + r = write_string_file("/sys/power/resume", major_minor, WRITE_STRING_FILE_CREATE); + if (r < 0) { + log_error_errno(r, "Failed to write '%s' to /sys/power/resume: %m", major_minor); + return EXIT_FAILURE; + } + + /* + * The write above shall not return. + * + * However, failed resume is a normal condition (may mean that there is + * no hibernation image). + */ + + log_info("Could not resume from '%s' (%s).", device, major_minor); + return EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/systemd-hibernate-resume@.service.in b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/systemd-hibernate-resume@.service.in new file mode 100644 index 0000000000..65e8eb83f1 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/systemd-hibernate-resume@.service.in @@ -0,0 +1,20 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Resume from hibernation using device %f +Documentation=man:systemd-hibernate-resume@.service(8) +DefaultDependencies=no +BindsTo=%i.device +Wants=local-fs-pre.target +After=%i.device +Before=local-fs-pre.target +ConditionPathExists=/etc/initrd-release + +[Service] +Type=oneshot +ExecStart=@rootlibexecdir@/systemd-hibernate-resume %f diff --git a/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/systemd-hibernate-resume@.service.xml b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/systemd-hibernate-resume@.service.xml new file mode 100644 index 0000000000..7d00827447 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-hibernate-resume/systemd-hibernate-resume@.service.xml @@ -0,0 +1,81 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2014 Ivan Shapovalov + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-hibernate-resume@.service"> + + <refentryinfo> + <title>systemd-hibernate-resume@.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Ivan</firstname> + <surname>Shapovalov</surname> + <email>intelfx100@gmail.com</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-hibernate-resume@.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-hibernate-resume@.service</refname> + <refname>systemd-hibernate-resume</refname> + <refpurpose>Resume from hibernation</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-hibernate-resume@.service</filename></para> + <para><filename>/usr/lib/systemd/systemd-hibernate-resume</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-hibernate-resume@.service</filename> + initiates the resume from hibernation. It is instantiated with the + device to resume from as the template argument.</para> + + <para><filename>systemd-hibernate-resume</filename> only supports + the in-kernel hibernation implementation, known as + <ulink url="https://www.kernel.org/doc/Documentation/power/swsusp.txt">swsusp</ulink>. + Internally, it works by writing the major:minor of specified + device node to <filename>/sys/power/resume</filename>.</para> + + <para>Failing to initiate a resume is not an error condition. It + may mean that there was no resume image (e. g. if the system has + been simply powered off and not hibernated). In such case, the + boot is ordinarily continued.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-hibernate-resume-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/GNUmakefile b/src/grp-initprogs/grp-sleep/systemd-sleep/GNUmakefile new file mode 120000 index 0000000000..13308a50cd --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-sleep/GNUmakefile @@ -0,0 +1 @@ +../../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/Makefile b/src/grp-initprogs/grp-sleep/systemd-sleep/Makefile new file mode 100644 index 0000000000..45c0beaf9d --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-sleep/Makefile @@ -0,0 +1,49 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +rootlibexec_PROGRAMS += systemd-sleep +systemd_sleep_SOURCES = \ + src/sleep/sleep.c + +systemd_sleep_LDADD = \ + libsystemd-shared.la + +ifneq ($(ENABLE_HIBERNATE),) + +dist_systemunit_DATA += \ + units/hibernate.target \ + units/hybrid-sleep.target + +nodist_systemunit_DATA += \ + units/systemd-hibernate.service \ + units/systemd-hybrid-sleep.service + +endif # ENABLE_HIBERNATE + +EXTRA_DIST += \ + units/systemd-hibernate.service.in \ + units/systemd-hybrid-sleep.service.in + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/hibernate.target b/src/grp-initprogs/grp-sleep/systemd-sleep/hibernate.target new file mode 100644 index 0000000000..143eb59230 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-sleep/hibernate.target @@ -0,0 +1,13 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Hibernate +Documentation=man:systemd.special(7) +DefaultDependencies=no +BindsTo=systemd-hibernate.service +After=systemd-hibernate.service diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/hybrid-sleep.target b/src/grp-initprogs/grp-sleep/systemd-sleep/hybrid-sleep.target new file mode 100644 index 0000000000..d2d3409225 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-sleep/hybrid-sleep.target @@ -0,0 +1,13 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Hybrid Suspend+Hibernate +Documentation=man:systemd.special(7) +DefaultDependencies=no +BindsTo=systemd-hybrid-sleep.service +After=systemd-hybrid-sleep.service diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/sleep.c b/src/grp-initprogs/grp-sleep/systemd-sleep/sleep.c new file mode 100644 index 0000000000..16ae4c7314 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-sleep/sleep.c @@ -0,0 +1,215 @@ +/*** + This file is part of systemd. + + Copyright 2012 Lennart Poettering + Copyright 2013 Zbigniew Jędrzejewski-Szmek + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <getopt.h> +#include <stdio.h> + +#include <systemd/sd-messages.h> + +#include "systemd-basic/def.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/fileio.h" +#include "systemd-basic/log.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/strv.h" +#include "systemd-basic/util.h" +#include "systemd-shared/sleep-config.h" + +static char* arg_verb = NULL; + +static int write_mode(char **modes) { + int r = 0; + char **mode; + + STRV_FOREACH(mode, modes) { + int k; + + k = write_string_file("/sys/power/disk", *mode, 0); + if (k == 0) + return 0; + + log_debug_errno(k, "Failed to write '%s' to /sys/power/disk: %m", + *mode); + if (r == 0) + r = k; + } + + if (r < 0) + log_error_errno(r, "Failed to write mode to /sys/power/disk: %m"); + + return r; +} + +static int write_state(FILE **f, char **states) { + char **state; + int r = 0; + + STRV_FOREACH(state, states) { + int k; + + k = write_string_stream(*f, *state, true); + if (k == 0) + return 0; + log_debug_errno(k, "Failed to write '%s' to /sys/power/state: %m", + *state); + if (r == 0) + r = k; + + fclose(*f); + *f = fopen("/sys/power/state", "we"); + if (!*f) + return log_error_errno(errno, "Failed to open /sys/power/state: %m"); + } + + return r; +} + +static int execute(char **modes, char **states) { + + char *arguments[] = { + NULL, + (char*) "pre", + arg_verb, + NULL + }; + static const char* const dirs[] = {SYSTEM_SLEEP_PATH, NULL}; + + int r; + _cleanup_fclose_ FILE *f = NULL; + + /* This file is opened first, so that if we hit an error, + * we can abort before modifying any state. */ + f = fopen("/sys/power/state", "we"); + if (!f) + return log_error_errno(errno, "Failed to open /sys/power/state: %m"); + + /* Configure the hibernation mode */ + r = write_mode(modes); + if (r < 0) + return r; + + execute_directories(dirs, DEFAULT_TIMEOUT_USEC, arguments); + + log_struct(LOG_INFO, + LOG_MESSAGE_ID(SD_MESSAGE_SLEEP_START), + LOG_MESSAGE("Suspending system..."), + "SLEEP=%s", arg_verb, + NULL); + + r = write_state(&f, states); + if (r < 0) + return r; + + log_struct(LOG_INFO, + LOG_MESSAGE_ID(SD_MESSAGE_SLEEP_STOP), + LOG_MESSAGE("System resumed."), + "SLEEP=%s", arg_verb, + NULL); + + arguments[1] = (char*) "post"; + execute_directories(dirs, DEFAULT_TIMEOUT_USEC, arguments); + + return r; +} + +static void help(void) { + printf("%s COMMAND\n\n" + "Suspend the system, hibernate the system, or both.\n\n" + "Commands:\n" + " -h --help Show this help and exit\n" + " --version Print version string and exit\n" + " suspend Suspend the system\n" + " hibernate Hibernate the system\n" + " hybrid-sleep Both hibernate and suspend the system\n" + , program_invocation_short_name); +} + +static int parse_argv(int argc, char *argv[]) { + enum { + ARG_VERSION = 0x100, + }; + + static const struct option options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + {} + }; + + int c; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) + switch(c) { + case 'h': + help(); + return 0; /* done */ + + case ARG_VERSION: + return version(); + + case '?': + return -EINVAL; + + default: + assert_not_reached("Unhandled option"); + } + + if (argc - optind != 1) { + log_error("Usage: %s COMMAND", + program_invocation_short_name); + return -EINVAL; + } + + arg_verb = argv[optind]; + + if (!streq(arg_verb, "suspend") && + !streq(arg_verb, "hibernate") && + !streq(arg_verb, "hybrid-sleep")) { + log_error("Unknown command '%s'.", arg_verb); + return -EINVAL; + } + + return 1 /* work to do */; +} + +int main(int argc, char *argv[]) { + _cleanup_strv_free_ char **modes = NULL, **states = NULL; + int r; + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + r = parse_argv(argc, argv); + if (r <= 0) + goto finish; + + r = parse_sleep_config(arg_verb, &modes, &states); + if (r < 0) + goto finish; + + r = execute(modes, states); + +finish: + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/sleep.target b/src/grp-initprogs/grp-sleep/systemd-sleep/sleep.target new file mode 100644 index 0000000000..10c7c8d594 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-sleep/sleep.target @@ -0,0 +1,13 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Sleep +Documentation=man:systemd.special(7) +DefaultDependencies=no +RefuseManualStart=yes +StopWhenUnneeded=yes diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/suspend.target b/src/grp-initprogs/grp-sleep/systemd-sleep/suspend.target new file mode 100644 index 0000000000..f50cb2264f --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-sleep/suspend.target @@ -0,0 +1,13 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Suspend +Documentation=man:systemd.special(7) +DefaultDependencies=no +BindsTo=systemd-suspend.service +After=systemd-suspend.service diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-hibernate.service.in b/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-hibernate.service.in new file mode 100644 index 0000000000..29d9b696a8 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-hibernate.service.in @@ -0,0 +1,17 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Hibernate +Documentation=man:systemd-suspend.service(8) +DefaultDependencies=no +Requires=sleep.target +After=sleep.target + +[Service] +Type=oneshot +ExecStart=@rootlibexecdir@/systemd-sleep hibernate diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-hybrid-sleep.service.in b/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-hybrid-sleep.service.in new file mode 100644 index 0000000000..914b686c36 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-hybrid-sleep.service.in @@ -0,0 +1,17 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Hybrid Suspend+Hibernate +Documentation=man:systemd-suspend.service(8) +DefaultDependencies=no +Requires=sleep.target +After=sleep.target + +[Service] +Type=oneshot +ExecStart=@rootlibexecdir@/systemd-sleep hybrid-sleep diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-sleep.conf.xml b/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-sleep.conf.xml new file mode 100644 index 0000000000..9a379ecb94 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-sleep.conf.xml @@ -0,0 +1,186 @@ +<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" +"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + +<!-- + This file is part of systemd. + + Copyright 2013 Zbigniew Jędrzejewski-Szmek + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> + +<refentry id="systemd-sleep.conf" + xmlns:xi="http://www.w3.org/2001/XInclude"> + <refentryinfo> + <title>systemd-sleep.conf</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Zbigniew</firstname> + <surname>Jędrzejewski-Szmek</surname> + <email>zbyszek@in.waw.pl</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-sleep.conf</refentrytitle> + <manvolnum>5</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-sleep.conf</refname> + <refname>sleep.conf.d</refname> + <refpurpose>Suspend and hibernation configuration file</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>/etc/systemd/sleep.conf</filename></para> + <para><filename>/etc/systemd/sleep.conf.d/*.conf</filename></para> + <para><filename>/run/systemd/sleep.conf.d/*.conf</filename></para> + <para><filename>/usr/lib/systemd/sleep.conf.d/*.conf</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><command>systemd</command> supports three general + power-saving modes:</para> + + <variablelist> + <varlistentry> + <term>suspend</term> + + <listitem><para>a low-power state + where execution of the OS is paused, + and complete power loss might result + in lost data, and which is fast to + enter and exit. This corresponds to + suspend, standby, or freeze states as + understood by the kernel. + </para></listitem> + </varlistentry> + + <varlistentry> + <term>hibernate</term> + + <listitem><para>a low-power state + where execution of the OS is paused, + and complete power loss does not + result in lost data, and which might + be slow to enter and exit. This + corresponds to the hibernation as + understood by the kernel. + </para></listitem> + </varlistentry> + + <varlistentry> + <term>hybrid-sleep</term> + + <listitem><para>a low-power state + where execution of the OS is paused, + which might be slow to enter, and on + complete power loss does not result in + lost data but might be slower to exit + in that case. This mode is called + suspend-to-both by the kernel. + </para></listitem> + </varlistentry> + </variablelist> + + <para>Settings in these files determine what strings + will be written to + <filename>/sys/power/disk</filename> and + <filename>/sys/power/state</filename> by + <citerefentry><refentrytitle>systemd-sleep</refentrytitle><manvolnum>8</manvolnum></citerefentry> + when + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry> + attempts to suspend or hibernate the machine.</para> + </refsect1> + + <xi:include href="standard-conf.xml" xpointer="main-conf" /> + + <refsect1> + <title>Options</title> + + <para>The following options can be configured in the + <literal>[Sleep]</literal> section of + <filename>/etc/systemd/sleep.conf</filename> or a + <filename>sleep.conf.d</filename> file:</para> + + <variablelist class='systemd-directives'> + <varlistentry> + <term><varname>SuspendMode=</varname></term> + <term><varname>HibernateMode=</varname></term> + <term><varname>HybridSleepMode=</varname></term> + + <listitem><para>The string to be written to + <filename>/sys/power/disk</filename> by, + respectively, + <citerefentry><refentrytitle>systemd-suspend.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, or + <citerefentry><refentrytitle>systemd-hybrid-sleep.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. + More than one value can be specified by separating + multiple values with whitespace. They will be tried + in turn, until one is written without error. If + neither succeeds, the operation will be aborted. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>SuspendState=</varname></term> + <term><varname>HibernateState=</varname></term> + <term><varname>HybridSleepState=</varname></term> + + <listitem><para>The string to be written to + <filename>/sys/power/state</filename> by, + respectively, + <citerefentry><refentrytitle>systemd-suspend.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, or + <citerefentry><refentrytitle>systemd-hybrid-sleep.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>. + More than one value can be specified by separating + multiple values with whitespace. They will be tried + in turn, until one is written without error. If + neither succeeds, the operation will be aborted. + </para></listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Example: freeze</title> + + <para>Example: to exploit the <quote>freeze</quote> mode added + in Linux 3.9, one can use <command>systemctl suspend</command> + with + <programlisting>[Sleep] +SuspendState=freeze</programlisting></para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd-sleep</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-suspend.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-hibernate.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-hybrid-sleep.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-sleep.xml b/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-sleep.xml new file mode 100644 index 0000000000..a8beb86f4d --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-sleep.xml @@ -0,0 +1,146 @@ +<?xml version='1.0'?> <!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" + "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + +<!-- + This file is part of systemd. + + Copyright 2012 Lennart Poettering + Copyright 2013 Zbigniew Jędrzejewski-Szmek + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> + +<refentry id="systemd-suspend.service" + xmlns:xi="http://www.w3.org/2001/XInclude"> + + <refentryinfo> + <title>systemd-suspend.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-suspend.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-suspend.service</refname> + <refname>systemd-hibernate.service</refname> + <refname>systemd-hybrid-sleep.service</refname> + <refname>systemd-sleep</refname> + <refpurpose>System sleep state logic</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-suspend.service</filename></para> + <para><filename>systemd-hibernate.service</filename></para> + <para><filename>systemd-hybrid-sleep.service</filename></para> + <para><filename>/usr/lib/systemd/system-sleep</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-suspend.service</filename> is a system + service that is pulled in by <filename>suspend.target</filename> + and is responsible for the actual system suspend. Similarly, + <filename>systemd-hibernate.service</filename> is pulled in by + <filename>hibernate.target</filename> to execute the actual + hibernation. Finally, + <filename>systemd-hybrid-sleep.service</filename> is pulled in by + <filename>hybrid-sleep.target</filename> to execute hybrid + hibernation with system suspend.</para> + + <para>Immediately before entering system suspend and/or + hibernation <filename>systemd-suspend.service</filename> (and the + other mentioned units, respectively) will run all executables in + <filename>/usr/lib/systemd/system-sleep/</filename> and pass two + arguments to them. The first argument will be + <literal>pre</literal>, the second either + <literal>suspend</literal>, <literal>hibernate</literal>, or + <literal>hybrid-sleep</literal> depending on the chosen action. + Immediately after leaving system suspend and/or hibernation the + same executables are run, but the first argument is now + <literal>post</literal>. All executables in this directory are + executed in parallel, and execution of the action is not continued + until all executables have finished.</para> + + <para>Note that scripts or binaries dropped in + <filename>/usr/lib/systemd/system-sleep/</filename> are intended + for local use only and should be considered hacks. If applications + want to be notified of system suspend/hibernation and resume, + there are much nicer interfaces available.</para> + + <para>Note that + <filename>systemd-suspend.service</filename>, + <filename>systemd-hibernate.service</filename>, and + <filename>systemd-hybrid-sleep.service</filename> + should never be executed directly. Instead, trigger system sleep + states with a command such as <literal>systemctl suspend</literal> + or similar.</para> + + <para>Internally, this service will echo a string like + <literal>mem</literal> into <filename>/sys/power/state</filename>, + to trigger the actual system suspend. What exactly is written + where can be configured in the <literal>[Sleep]</literal> section + of <filename>/etc/systemd/sleep.conf</filename> or a + <filename>sleep.conf.d</filename> file. See + <citerefentry><refentrytitle>systemd-sleep.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>. + </para> + </refsect1> + + <refsect1> + <title>Options</title> + + <para><command>systemd-sleep</command> understands the + following commands:</para> + + <variablelist> + <xi:include href="standard-options.xml" xpointer="help" /> + <xi:include href="standard-options.xml" xpointer="version" /> + + <varlistentry> + <term><option>suspend</option></term> + <term><option>hibernate</option></term> + <term><option>hybrid-sleep</option></term> + + <listitem><para>Suspend, hibernate, or put the system to + hybrid sleep.</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd-sleep.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd.special</refentrytitle><manvolnum>7</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-halt.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-suspend.service.in b/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-suspend.service.in new file mode 100644 index 0000000000..3a702d2e22 --- /dev/null +++ b/src/grp-initprogs/grp-sleep/systemd-sleep/systemd-suspend.service.in @@ -0,0 +1,17 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Suspend +Documentation=man:systemd-suspend.service(8) +DefaultDependencies=no +Requires=sleep.target +After=sleep.target + +[Service] +Type=oneshot +ExecStart=@rootlibexecdir@/systemd-sleep suspend diff --git a/src/grp-initprogs/systemd-backlight/GNUmakefile b/src/grp-initprogs/systemd-backlight/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-backlight/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-backlight/Makefile b/src/grp-initprogs/systemd-backlight/Makefile new file mode 100644 index 0000000000..4a79889681 --- /dev/null +++ b/src/grp-initprogs/systemd-backlight/Makefile @@ -0,0 +1,43 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_BACKLIGHT),) +rootlibexec_PROGRAMS += \ + systemd-backlight + +nodist_systemunit_DATA += \ + units/systemd-backlight@.service + +systemd_backlight_SOURCES = \ + src/backlight/backlight.c + +systemd_backlight_LDADD = \ + libsystemd-shared.la +endif # ENABLE_BACKLIGHT + +EXTRA_DIST += \ + units/systemd-backlight@.service.in + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-backlight/backlight.c b/src/grp-initprogs/systemd-backlight/backlight.c new file mode 100644 index 0000000000..f5b80c395e --- /dev/null +++ b/src/grp-initprogs/systemd-backlight/backlight.c @@ -0,0 +1,434 @@ +/*** + This file is part of systemd. + + Copyright 2013 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <libudev.h> + +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/def.h" +#include "systemd-basic/escape.h" +#include "systemd-basic/fileio.h" +#include "systemd-basic/mkdir.h" +#include "systemd-basic/parse-util.h" +#include "systemd-basic/proc-cmdline.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/util.h" +#include "systemd-shared/udev-util.h" + +static struct udev_device *find_pci_or_platform_parent(struct udev_device *device) { + struct udev_device *parent; + const char *subsystem, *sysname; + + assert(device); + + parent = udev_device_get_parent(device); + if (!parent) + return NULL; + + subsystem = udev_device_get_subsystem(parent); + if (!subsystem) + return NULL; + + sysname = udev_device_get_sysname(parent); + if (!sysname) + return NULL; + + if (streq(subsystem, "drm")) { + const char *c; + + c = startswith(sysname, "card"); + if (!c) + return NULL; + + c += strspn(c, DIGITS); + if (*c == '-') { + /* A connector DRM device, let's ignore all but LVDS and eDP! */ + + if (!startswith(c, "-LVDS-") && + !startswith(c, "-Embedded DisplayPort-")) + return NULL; + } + + } else if (streq(subsystem, "pci")) { + const char *value; + + value = udev_device_get_sysattr_value(parent, "class"); + if (value) { + unsigned long class = 0; + + if (safe_atolu(value, &class) < 0) { + log_warning("Cannot parse PCI class %s of device %s:%s.", + value, subsystem, sysname); + return NULL; + } + + /* Graphics card */ + if (class == 0x30000) + return parent; + } + + } else if (streq(subsystem, "platform")) + return parent; + + return find_pci_or_platform_parent(parent); +} + +static bool same_device(struct udev_device *a, struct udev_device *b) { + assert(a); + assert(b); + + if (!streq_ptr(udev_device_get_subsystem(a), udev_device_get_subsystem(b))) + return false; + + if (!streq_ptr(udev_device_get_sysname(a), udev_device_get_sysname(b))) + return false; + + return true; +} + +static bool validate_device(struct udev *udev, struct udev_device *device) { + _cleanup_udev_enumerate_unref_ struct udev_enumerate *enumerate = NULL; + struct udev_list_entry *item = NULL, *first = NULL; + struct udev_device *parent; + const char *v, *subsystem; + int r; + + assert(udev); + assert(device); + + /* Verify whether we should actually care for a specific + * backlight device. For backlight devices there might be + * multiple ways to access the same control: "firmware" + * (i.e. ACPI), "platform" (i.e. via the machine's EC) and + * "raw" (via the graphics card). In general we should prefer + * "firmware" (i.e. ACPI) or "platform" access over "raw" + * access, in order not to confuse the BIOS/EC, and + * compatibility with possible low-level hotkey handling of + * screen brightness. The kernel will already make sure to + * expose only one of "firmware" and "platform" for the same + * device to userspace. However, we still need to make sure + * that we use "raw" only if no "firmware" or "platform" + * device for the same device exists. */ + + subsystem = udev_device_get_subsystem(device); + if (!streq_ptr(subsystem, "backlight")) + return true; + + v = udev_device_get_sysattr_value(device, "type"); + if (!streq_ptr(v, "raw")) + return true; + + parent = find_pci_or_platform_parent(device); + if (!parent) + return true; + + subsystem = udev_device_get_subsystem(parent); + if (!subsystem) + return true; + + enumerate = udev_enumerate_new(udev); + if (!enumerate) + return true; + + r = udev_enumerate_add_match_subsystem(enumerate, "backlight"); + if (r < 0) + return true; + + r = udev_enumerate_scan_devices(enumerate); + if (r < 0) + return true; + + first = udev_enumerate_get_list_entry(enumerate); + udev_list_entry_foreach(item, first) { + _cleanup_udev_device_unref_ struct udev_device *other; + struct udev_device *other_parent; + const char *other_subsystem; + + other = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item)); + if (!other) + return true; + + if (same_device(device, other)) + continue; + + v = udev_device_get_sysattr_value(other, "type"); + if (!STRPTR_IN_SET(v, "platform", "firmware")) + continue; + + /* OK, so there's another backlight device, and it's a + * platform or firmware device, so, let's see if we + * can verify it belongs to the same device as + * ours. */ + other_parent = find_pci_or_platform_parent(other); + if (!other_parent) + continue; + + if (same_device(parent, other_parent)) { + /* Both have the same PCI parent, that means + * we are out. */ + log_debug("Skipping backlight device %s, since device %s is on same PCI device and takes precedence.", + udev_device_get_sysname(device), + udev_device_get_sysname(other)); + return false; + } + + other_subsystem = udev_device_get_subsystem(other_parent); + if (streq_ptr(other_subsystem, "platform") && streq_ptr(subsystem, "pci")) { + /* The other is connected to the platform bus + * and we are a PCI device, that also means we + * are out. */ + log_debug("Skipping backlight device %s, since device %s is a platform device and takes precedence.", + udev_device_get_sysname(device), + udev_device_get_sysname(other)); + return false; + } + } + + return true; +} + +static unsigned get_max_brightness(struct udev_device *device) { + int r; + const char *max_brightness_str; + unsigned max_brightness; + + max_brightness_str = udev_device_get_sysattr_value(device, "max_brightness"); + if (!max_brightness_str) { + log_warning("Failed to read 'max_brightness' attribute."); + return 0; + } + + r = safe_atou(max_brightness_str, &max_brightness); + if (r < 0) { + log_warning_errno(r, "Failed to parse 'max_brightness' \"%s\": %m", max_brightness_str); + return 0; + } + + if (max_brightness <= 0) { + log_warning("Maximum brightness is 0, ignoring device."); + return 0; + } + + return max_brightness; +} + +/* Some systems turn the backlight all the way off at the lowest levels. + * clamp_brightness clamps the saved brightness to at least 1 or 5% of + * max_brightness in case of 'backlight' subsystem. This avoids preserving + * an unreadably dim screen, which would otherwise force the user to + * disable state restoration. */ +static void clamp_brightness(struct udev_device *device, char **value, unsigned max_brightness) { + int r; + unsigned brightness, new_brightness, min_brightness; + const char *subsystem; + + r = safe_atou(*value, &brightness); + if (r < 0) { + log_warning_errno(r, "Failed to parse brightness \"%s\": %m", *value); + return; + } + + subsystem = udev_device_get_subsystem(device); + if (streq_ptr(subsystem, "backlight")) + min_brightness = MAX(1U, max_brightness/20); + else + min_brightness = 0; + + new_brightness = CLAMP(brightness, min_brightness, max_brightness); + if (new_brightness != brightness) { + char *old_value = *value; + + r = asprintf(value, "%u", new_brightness); + if (r < 0) { + log_oom(); + return; + } + + log_info("Saved brightness %s %s to %s.", old_value, + new_brightness > brightness ? + "too low; increasing" : "too high; decreasing", + *value); + + free(old_value); + } +} + +int main(int argc, char *argv[]) { + _cleanup_udev_unref_ struct udev *udev = NULL; + _cleanup_udev_device_unref_ struct udev_device *device = NULL; + _cleanup_free_ char *saved = NULL, *ss = NULL, *escaped_ss = NULL, *escaped_sysname = NULL, *escaped_path_id = NULL; + const char *sysname, *path_id; + unsigned max_brightness; + int r; + + if (argc != 3) { + log_error("This program requires two arguments."); + return EXIT_FAILURE; + } + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + r = mkdir_p("/var/lib/systemd/backlight", 0755); + if (r < 0) { + log_error_errno(r, "Failed to create backlight directory /var/lib/systemd/backlight: %m"); + return EXIT_FAILURE; + } + + udev = udev_new(); + if (!udev) { + log_oom(); + return EXIT_FAILURE; + } + + sysname = strchr(argv[2], ':'); + if (!sysname) { + log_error("Requires a subsystem and sysname pair specifying a backlight device."); + return EXIT_FAILURE; + } + + ss = strndup(argv[2], sysname - argv[2]); + if (!ss) { + log_oom(); + return EXIT_FAILURE; + } + + sysname++; + + if (!streq(ss, "backlight") && !streq(ss, "leds")) { + log_error("Not a backlight or LED device: '%s:%s'", ss, sysname); + return EXIT_FAILURE; + } + + errno = 0; + device = udev_device_new_from_subsystem_sysname(udev, ss, sysname); + if (!device) { + if (errno > 0) + log_error_errno(errno, "Failed to get backlight or LED device '%s:%s': %m", ss, sysname); + else + log_oom(); + + return EXIT_FAILURE; + } + + /* If max_brightness is 0, then there is no actual backlight + * device. This happens on desktops with Asus mainboards + * that load the eeepc-wmi module. + */ + max_brightness = get_max_brightness(device); + if (max_brightness == 0) + return EXIT_SUCCESS; + + escaped_ss = cescape(ss); + if (!escaped_ss) { + log_oom(); + return EXIT_FAILURE; + } + + escaped_sysname = cescape(sysname); + if (!escaped_sysname) { + log_oom(); + return EXIT_FAILURE; + } + + path_id = udev_device_get_property_value(device, "ID_PATH"); + if (path_id) { + escaped_path_id = cescape(path_id); + if (!escaped_path_id) { + log_oom(); + return EXIT_FAILURE; + } + + saved = strjoin("/var/lib/systemd/backlight/", escaped_path_id, ":", escaped_ss, ":", escaped_sysname, NULL); + } else + saved = strjoin("/var/lib/systemd/backlight/", escaped_ss, ":", escaped_sysname, NULL); + + if (!saved) { + log_oom(); + return EXIT_FAILURE; + } + + /* If there are multiple conflicting backlight devices, then + * their probing at boot-time might happen in any order. This + * means the validity checking of the device then is not + * reliable, since it might not see other devices conflicting + * with a specific backlight. To deal with this, we will + * actively delete backlight state files at shutdown (where + * device probing should be complete), so that the validity + * check at boot time doesn't have to be reliable. */ + + if (streq(argv[1], "load")) { + _cleanup_free_ char *value = NULL; + const char *clamp; + + if (shall_restore_state() == 0) + return EXIT_SUCCESS; + + if (!validate_device(udev, device)) + return EXIT_SUCCESS; + + r = read_one_line_file(saved, &value); + if (r < 0) { + + if (r == -ENOENT) + return EXIT_SUCCESS; + + log_error_errno(r, "Failed to read %s: %m", saved); + return EXIT_FAILURE; + } + + clamp = udev_device_get_property_value(device, "ID_BACKLIGHT_CLAMP"); + if (!clamp || parse_boolean(clamp) != 0) /* default to clamping */ + clamp_brightness(device, &value, max_brightness); + + r = udev_device_set_sysattr_value(device, "brightness", value); + if (r < 0) { + log_error_errno(r, "Failed to write system 'brightness' attribute: %m"); + return EXIT_FAILURE; + } + + } else if (streq(argv[1], "save")) { + const char *value; + + if (!validate_device(udev, device)) { + unlink(saved); + return EXIT_SUCCESS; + } + + value = udev_device_get_sysattr_value(device, "brightness"); + if (!value) { + log_error("Failed to read system 'brightness' attribute"); + return EXIT_FAILURE; + } + + r = write_string_file(saved, value, WRITE_STRING_FILE_CREATE); + if (r < 0) { + log_error_errno(r, "Failed to write %s: %m", saved); + return EXIT_FAILURE; + } + + } else { + log_error("Unknown verb %s.", argv[1]); + return EXIT_FAILURE; + } + + return EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-backlight/systemd-backlight@.service.in b/src/grp-initprogs/systemd-backlight/systemd-backlight@.service.in new file mode 100644 index 0000000000..5e6706c11c --- /dev/null +++ b/src/grp-initprogs/systemd-backlight/systemd-backlight@.service.in @@ -0,0 +1,22 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Load/Save Screen Backlight Brightness of %i +Documentation=man:systemd-backlight@.service(8) +DefaultDependencies=no +RequiresMountsFor=/var/lib/systemd/backlight +Conflicts=shutdown.target +After=systemd-remount-fs.service +Before=sysinit.target shutdown.target + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootlibexecdir@/systemd-backlight load %i +ExecStop=@rootlibexecdir@/systemd-backlight save %i +TimeoutSec=90s diff --git a/src/grp-initprogs/systemd-backlight/systemd-backlight@.service.xml b/src/grp-initprogs/systemd-backlight/systemd-backlight@.service.xml new file mode 100644 index 0000000000..3459ed8851 --- /dev/null +++ b/src/grp-initprogs/systemd-backlight/systemd-backlight@.service.xml @@ -0,0 +1,94 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2013 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-backlight@.service" conditional='ENABLE_BACKLIGHT'> + + <refentryinfo> + <title>systemd-backlight@.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-backlight@.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-backlight@.service</refname> + <refname>systemd-backlight</refname> + <refpurpose>Load and save the display backlight brightness at boot and shutdown</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-backlight@.service</filename></para> + <para><filename>/usr/lib/systemd/systemd-backlight</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-backlight@.service</filename> is a service + that restores the display backlight brightness at early boot and + saves it at shutdown. On disk, the backlight brightness is stored + in <filename>/var/lib/systemd/backlight/</filename>. During + loading, if the udev property <option>ID_BACKLIGHT_CLAMP</option> is + not set to false, the brightness is clamped to a value of at + least 1 or 5% of maximum brightness, whichever is greater. This + restriction will be removed when the kernel allows user space to + reliably set a brightness value which does not turn off the + display.</para> + </refsect1> + + <refsect1> + <title>Kernel Command Line</title> + + <para><filename>systemd-backlight</filename> understands the + following kernel command line parameter:</para> + + <variablelist class='kernel-commandline-options'> + <varlistentry> + <term><varname>systemd.restore_state=</varname></term> + + <listitem><para>Takes a boolean argument. Defaults to + <literal>1</literal>. If <literal>0</literal>, does not + restore the backlight settings on boot. However, settings will + still be stored on shutdown. </para></listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-binfmt/GNUmakefile b/src/grp-initprogs/systemd-binfmt/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-binfmt/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-binfmt/Makefile b/src/grp-initprogs/systemd-binfmt/Makefile new file mode 100644 index 0000000000..d9e032d16d --- /dev/null +++ b/src/grp-initprogs/systemd-binfmt/Makefile @@ -0,0 +1,56 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_BINFMT),) +systemd_binfmt_SOURCES = \ + src/binfmt/binfmt.c + +systemd_binfmt_LDADD = \ + libsystemd-shared.la + +rootlibexec_PROGRAMS += \ + systemd-binfmt + +dist_systemunit_DATA += \ + units/proc-sys-fs-binfmt_misc.automount \ + units/proc-sys-fs-binfmt_misc.mount + +nodist_systemunit_DATA += \ + units/systemd-binfmt.service + +INSTALL_DIRS += \ + $(prefix)/lib/binfmt.d \ + $(sysconfdir)/binfmt.d + +SYSINIT_TARGET_WANTS += \ + systemd-binfmt.service \ + proc-sys-fs-binfmt_misc.automount + +endif # ENABLE_BINFMT + +EXTRA_DIST += \ + units/systemd-binfmt.service.in + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-binfmt/binfmt.c b/src/grp-initprogs/systemd-binfmt/binfmt.c new file mode 100644 index 0000000000..f569d117df --- /dev/null +++ b/src/grp-initprogs/systemd-binfmt/binfmt.c @@ -0,0 +1,203 @@ +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <getopt.h> +#include <limits.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/conf-files.h" +#include "systemd-basic/def.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/fileio.h" +#include "systemd-basic/log.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/strv.h" +#include "systemd-basic/util.h" + +static const char conf_file_dirs[] = CONF_PATHS_NULSTR("binfmt.d"); + +static int delete_rule(const char *rule) { + _cleanup_free_ char *x = NULL, *fn = NULL; + char *e; + + assert(rule[0]); + + x = strdup(rule); + if (!x) + return log_oom(); + + e = strchrnul(x+1, x[0]); + *e = 0; + + fn = strappend("/proc/sys/fs/binfmt_misc/", x+1); + if (!fn) + return log_oom(); + + return write_string_file(fn, "-1", 0); +} + +static int apply_rule(const char *rule) { + int r; + + delete_rule(rule); + + r = write_string_file("/proc/sys/fs/binfmt_misc/register", rule, 0); + if (r < 0) + return log_error_errno(r, "Failed to add binary format: %m"); + + return 0; +} + +static int apply_file(const char *path, bool ignore_enoent) { + _cleanup_fclose_ FILE *f = NULL; + int r; + + assert(path); + + r = search_and_fopen_nulstr(path, "re", NULL, conf_file_dirs, &f); + if (r < 0) { + if (ignore_enoent && r == -ENOENT) + return 0; + + return log_error_errno(r, "Failed to open file '%s', ignoring: %m", path); + } + + log_debug("apply: %s", path); + for (;;) { + char l[LINE_MAX], *p; + int k; + + if (!fgets(l, sizeof(l), f)) { + if (feof(f)) + break; + + return log_error_errno(errno, "Failed to read file '%s', ignoring: %m", path); + } + + p = strstrip(l); + if (!*p) + continue; + if (strchr(COMMENTS "\n", *p)) + continue; + + k = apply_rule(p); + if (k < 0 && r == 0) + r = k; + } + + return r; +} + +static void help(void) { + printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" + "Registers binary formats.\n\n" + " -h --help Show this help\n" + " --version Show package version\n" + , program_invocation_short_name); +} + +static int parse_argv(int argc, char *argv[]) { + + enum { + ARG_VERSION = 0x100, + }; + + static const struct option options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + {} + }; + + int c; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) + + switch (c) { + + case 'h': + help(); + return 0; + + case ARG_VERSION: + return version(); + + case '?': + return -EINVAL; + + default: + assert_not_reached("Unhandled option"); + } + + return 1; +} + +int main(int argc, char *argv[]) { + int r, k; + + r = parse_argv(argc, argv); + if (r <= 0) + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + r = 0; + + if (argc > optind) { + int i; + + for (i = optind; i < argc; i++) { + k = apply_file(argv[i], false); + if (k < 0 && r == 0) + r = k; + } + } else { + _cleanup_strv_free_ char **files = NULL; + char **f; + + r = conf_files_list_nulstr(&files, ".conf", NULL, conf_file_dirs); + if (r < 0) { + log_error_errno(r, "Failed to enumerate binfmt.d files: %m"); + goto finish; + } + + /* Flush out all rules */ + write_string_file("/proc/sys/fs/binfmt_misc/status", "-1", 0); + + STRV_FOREACH(f, files) { + k = apply_file(*f, true); + if (k < 0 && r == 0) + r = k; + } + } + +finish: + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-binfmt/binfmt.d.xml b/src/grp-initprogs/systemd-binfmt/binfmt.d.xml new file mode 100644 index 0000000000..5b63cfb4c3 --- /dev/null +++ b/src/grp-initprogs/systemd-binfmt/binfmt.d.xml @@ -0,0 +1,101 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2011 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="binfmt.d" conditional='ENABLE_BINFMT' + xmlns:xi="http://www.w3.org/2001/XInclude"> + + <refentryinfo> + <title>binfmt.d</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>binfmt.d</refentrytitle> + <manvolnum>5</manvolnum> + </refmeta> + + <refnamediv> + <refname>binfmt.d</refname> + <refpurpose>Configure additional binary formats for + executables at boot</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>/etc/binfmt.d/*.conf</filename></para> + <para><filename>/run/binfmt.d/*.conf</filename></para> + <para><filename>/usr/lib/binfmt.d/*.conf</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para>At boot, + <citerefentry><refentrytitle>systemd-binfmt.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> + reads configuration files from the above directories to register + in the kernel additional binary formats for executables.</para> + </refsect1> + + <refsect1> + <title>Configuration Format</title> + + <para>Each file contains a list of binfmt_misc kernel binary + format rules. Consult <ulink + url="https://www.kernel.org/doc/Documentation/binfmt_misc.txt">binfmt_misc.txt</ulink> + for more information on registration of additional binary formats + and how to write rules.</para> + + <para>Empty lines and lines beginning with ; and # are ignored. + Note that this means you may not use ; and # as delimiter in + binary format rules.</para> + </refsect1> + + <xi:include href="standard-conf.xml" xpointer="confd" /> + + <refsect1> + <title>Example</title> + <example> + <title>/etc/binfmt.d/wine.conf example:</title> + + <programlisting># Start WINE on Windows executables +:DOSWin:M::MZ::/usr/bin/wine:</programlisting> + </example> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-binfmt.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-delta</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='die-net'><refentrytitle>wine</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-binfmt/proc-sys-fs-binfmt_misc.automount b/src/grp-initprogs/systemd-binfmt/proc-sys-fs-binfmt_misc.automount new file mode 100644 index 0000000000..6be38937b1 --- /dev/null +++ b/src/grp-initprogs/systemd-binfmt/proc-sys-fs-binfmt_misc.automount @@ -0,0 +1,18 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Arbitrary Executable File Formats File System Automount Point +Documentation=https://www.kernel.org/doc/Documentation/binfmt_misc.txt +Documentation=http://www.freedesktop.org/wiki/Software/systemd/APIFileSystems +DefaultDependencies=no +Before=sysinit.target +ConditionPathExists=/proc/sys/fs/binfmt_misc/ +ConditionPathIsReadWrite=/proc/sys/ + +[Automount] +Where=/proc/sys/fs/binfmt_misc diff --git a/src/grp-initprogs/systemd-binfmt/proc-sys-fs-binfmt_misc.mount b/src/grp-initprogs/systemd-binfmt/proc-sys-fs-binfmt_misc.mount new file mode 100644 index 0000000000..8c7c386318 --- /dev/null +++ b/src/grp-initprogs/systemd-binfmt/proc-sys-fs-binfmt_misc.mount @@ -0,0 +1,17 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Arbitrary Executable File Formats File System +Documentation=https://www.kernel.org/doc/Documentation/binfmt_misc.txt +Documentation=http://www.freedesktop.org/wiki/Software/systemd/APIFileSystems +DefaultDependencies=no + +[Mount] +What=binfmt_misc +Where=/proc/sys/fs/binfmt_misc +Type=binfmt_misc diff --git a/src/grp-initprogs/systemd-binfmt/systemd-binfmt.service.in b/src/grp-initprogs/systemd-binfmt/systemd-binfmt.service.in new file mode 100644 index 0000000000..d53073ee61 --- /dev/null +++ b/src/grp-initprogs/systemd-binfmt/systemd-binfmt.service.in @@ -0,0 +1,27 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Set Up Additional Binary Formats +Documentation=man:systemd-binfmt.service(8) man:binfmt.d(5) +Documentation=https://www.kernel.org/doc/Documentation/binfmt_misc.txt +DefaultDependencies=no +Conflicts=shutdown.target +After=proc-sys-fs-binfmt_misc.automount +Before=sysinit.target shutdown.target +ConditionPathIsReadWrite=/proc/sys/ +ConditionDirectoryNotEmpty=|/lib/binfmt.d +ConditionDirectoryNotEmpty=|/usr/lib/binfmt.d +ConditionDirectoryNotEmpty=|/usr/local/lib/binfmt.d +ConditionDirectoryNotEmpty=|/etc/binfmt.d +ConditionDirectoryNotEmpty=|/run/binfmt.d + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootlibexecdir@/systemd-binfmt +TimeoutSec=90s diff --git a/src/grp-initprogs/systemd-binfmt/systemd-binfmt.service.xml b/src/grp-initprogs/systemd-binfmt/systemd-binfmt.service.xml new file mode 100644 index 0000000000..cccfb49ca9 --- /dev/null +++ b/src/grp-initprogs/systemd-binfmt/systemd-binfmt.service.xml @@ -0,0 +1,75 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-binfmt.service" conditional='ENABLE_BINFMT'> + + <refentryinfo> + <title>systemd-binfmt.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-binfmt.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-binfmt.service</refname> + <refname>systemd-binfmt</refname> + <refpurpose>Configure additional binary formats for executables at boot</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-binfmt.service</filename></para> + <para><filename>/usr/lib/systemd/systemd-binfmt</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-binfmt.service</filename> is an early boot + service that registers additional binary formats for executables + in the kernel.</para> + + <para>See + <citerefentry><refentrytitle>binfmt.d</refentrytitle><manvolnum>5</manvolnum></citerefentry> + for information about the configuration of this service.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>binfmt.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry project='die-net'><refentrytitle>wine</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-detect-virt/GNUmakefile b/src/grp-initprogs/systemd-detect-virt/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-detect-virt/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-detect-virt/Makefile b/src/grp-initprogs/systemd-detect-virt/Makefile new file mode 100644 index 0000000000..7158be148a --- /dev/null +++ b/src/grp-initprogs/systemd-detect-virt/Makefile @@ -0,0 +1,36 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +bin_PROGRAMS += systemd-detect-virt +systemd_detect_virt_SOURCES = \ + src/detect-virt/detect-virt.c + +systemd_detect_virt_LDADD = \ + libsystemd-shared.la + +INSTALL_EXEC_HOOKS += \ + systemd-detect-virt-install-hook + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-detect-virt/detect-virt.c b/src/grp-initprogs/systemd-detect-virt/detect-virt.c new file mode 100644 index 0000000000..484f689c4c --- /dev/null +++ b/src/grp-initprogs/systemd-detect-virt/detect-virt.c @@ -0,0 +1,186 @@ +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <getopt.h> +#include <stdbool.h> +#include <stdlib.h> + +#include "systemd-basic/util.h" +#include "systemd-basic/virt.h" + +static bool arg_quiet = false; +static enum { + ANY_VIRTUALIZATION, + ONLY_VM, + ONLY_CONTAINER, + ONLY_CHROOT, + ONLY_PRIVATE_USERS, +} arg_mode = ANY_VIRTUALIZATION; + +static void help(void) { + printf("%s [OPTIONS...]\n\n" + "Detect execution in a virtualized environment.\n\n" + " -h --help Show this help\n" + " --version Show package version\n" + " -c --container Only detect whether we are run in a container\n" + " -v --vm Only detect whether we are run in a VM\n" + " -r --chroot Detect whether we are run in a chroot() environment\n" + " --private-users Only detect whether we are running in a user namespace\n" + " -q --quiet Don't output anything, just set return value\n" + , program_invocation_short_name); +} + +static int parse_argv(int argc, char *argv[]) { + + enum { + ARG_VERSION = 0x100, + ARG_PRIVATE_USERS, + }; + + static const struct option options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + { "container", no_argument, NULL, 'c' }, + { "vm", no_argument, NULL, 'v' }, + { "chroot", no_argument, NULL, 'r' }, + { "private-users", no_argument, NULL, ARG_PRIVATE_USERS }, + { "quiet", no_argument, NULL, 'q' }, + {} + }; + + int c; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "hqcvr", options, NULL)) >= 0) + + switch (c) { + + case 'h': + help(); + return 0; + + case ARG_VERSION: + return version(); + + case 'q': + arg_quiet = true; + break; + + case 'c': + arg_mode = ONLY_CONTAINER; + break; + + case ARG_PRIVATE_USERS: + arg_mode = ONLY_PRIVATE_USERS; + break; + + case 'v': + arg_mode = ONLY_VM; + break; + + case 'r': + arg_mode = ONLY_CHROOT; + break; + + case '?': + return -EINVAL; + + default: + assert_not_reached("Unhandled option"); + } + + if (optind < argc) { + log_error("%s takes no arguments.", program_invocation_short_name); + return -EINVAL; + } + + return 1; +} + +int main(int argc, char *argv[]) { + int r; + + /* This is mostly intended to be used for scripts which want + * to detect whether we are being run in a virtualized + * environment or not */ + + log_parse_environment(); + log_open(); + + r = parse_argv(argc, argv); + if (r <= 0) + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; + + switch (arg_mode) { + + case ONLY_VM: + r = detect_vm(); + if (r < 0) { + log_error_errno(r, "Failed to check for VM: %m"); + return EXIT_FAILURE; + } + + break; + + case ONLY_CONTAINER: + r = detect_container(); + if (r < 0) { + log_error_errno(r, "Failed to check for container: %m"); + return EXIT_FAILURE; + } + + break; + + case ONLY_CHROOT: + r = running_in_chroot(); + if (r < 0) { + log_error_errno(r, "Failed to check for chroot() environment: %m"); + return EXIT_FAILURE; + } + + return r ? EXIT_SUCCESS : EXIT_FAILURE; + + case ONLY_PRIVATE_USERS: + r = running_in_userns(); + if (r < 0) { + log_error_errno(r, "Failed to check for user namespace: %m"); + return EXIT_FAILURE; + } + + return r ? EXIT_SUCCESS : EXIT_FAILURE; + + case ANY_VIRTUALIZATION: + default: + r = detect_virtualization(); + if (r < 0) { + log_error_errno(r, "Failed to check for virtualization: %m"); + return EXIT_FAILURE; + } + + break; + } + + if (!arg_quiet) + puts(virtualization_to_string(r)); + + return r != VIRTUALIZATION_NONE ? EXIT_SUCCESS : EXIT_FAILURE; +} diff --git a/src/grp-initprogs/systemd-detect-virt/systemd-detect-virt.completion.bash b/src/grp-initprogs/systemd-detect-virt/systemd-detect-virt.completion.bash new file mode 100644 index 0000000000..df06c29841 --- /dev/null +++ b/src/grp-initprogs/systemd-detect-virt/systemd-detect-virt.completion.bash @@ -0,0 +1,40 @@ +# systemd-detect-virt(1) completion -*- shell-script -*- +# +# This file is part of systemd. +# +# Copyright 2014 Thomas H.P. Andersen +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. + +__contains_word() { + local w word=$1; shift + for w in "$@"; do + [[ $w = "$word" ]] && return + done +} + +_systemd_detect_virt() { + local cur=${COMP_WORDS[COMP_CWORD]} prev=${COMP_WORDS[COMP_CWORD-1]} + local i verb comps + + local -A OPTS=( + [STANDALONE]='-h --help --version -c --container -v --vm -q --quiet' + ) + + _init_completion || return + + COMPREPLY=( $(compgen -W '${OPTS[*]}' -- "$cur") ) +} + +complete -F _systemd_detect_virt systemd-detect-virt diff --git a/src/grp-initprogs/systemd-detect-virt/systemd-detect-virt.completion.zsh b/src/grp-initprogs/systemd-detect-virt/systemd-detect-virt.completion.zsh new file mode 100644 index 0000000000..a0c7df727c --- /dev/null +++ b/src/grp-initprogs/systemd-detect-virt/systemd-detect-virt.completion.zsh @@ -0,0 +1,11 @@ +#compdef systemd-detect-virt + +local curcontext="$curcontext" state lstate line +_arguments \ + {-h,--help}'[Show this help]' \ + '--version[Show package version]' \ + {-c,--container}'[Only detect whether we are run in a container]' \ + {-v,--vm}'[Only detect whether we are run in a VM]' \ + {-q,--quiet}"[Don't output anything, just set return value]" + +#vim: set ft=zsh sw=4 ts=4 et diff --git a/src/grp-initprogs/systemd-detect-virt/systemd-detect-virt.xml b/src/grp-initprogs/systemd-detect-virt/systemd-detect-virt.xml new file mode 100644 index 0000000000..996c2fa256 --- /dev/null +++ b/src/grp-initprogs/systemd-detect-virt/systemd-detect-virt.xml @@ -0,0 +1,262 @@ +<?xml version='1.0'?> <!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" + "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + +<!-- + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> + +<refentry id="systemd-detect-virt" + xmlns:xi="http://www.w3.org/2001/XInclude"> + + <refentryinfo> + <title>systemd-detect-virt</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-detect-virt</refentrytitle> + <manvolnum>1</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-detect-virt</refname> + <refpurpose>Detect execution in a virtualized environment</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <cmdsynopsis> + <command>systemd-detect-virt</command> + <arg choice="opt" rep="repeat">OPTIONS</arg> + </cmdsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><command>systemd-detect-virt</command> detects execution in + a virtualized environment. It identifies the virtualization + technology and can distinguish full machine virtualization from + container virtualization. <filename>systemd-detect-virt</filename> + exits with a return value of 0 (success) if a virtualization + technology is detected, and non-zero (error) otherwise. By default, + any type of virtualization is detected, and the options + <option>--container</option> and <option>--vm</option> can be used + to limit what types of virtualization are detected.</para> + + <para>When executed without <option>--quiet</option> will print a + short identifier for the detected virtualization technology. The + following technologies are currently identified:</para> + + <table> + <title>Known virtualization technologies (both + VM, i.e. full hardware virtualization, + and container, i.e. shared kernel virtualization)</title> + <tgroup cols='3' align='left' colsep='1' rowsep='1'> + <colspec colname="type" /> + <colspec colname="id" /> + <colspec colname="product" /> + <thead> + <row> + <entry>Type</entry> + <entry>ID</entry> + <entry>Product</entry> + </row> + </thead> + <tbody> + <row> + <entry valign="top" morerows="10">VM</entry> + <entry><varname>qemu</varname></entry> + <entry>QEMU software virtualization</entry> + </row> + + <row> + <entry><varname>kvm</varname></entry> + <entry>Linux KVM kernel virtual machine</entry> + </row> + + <row> + <entry><varname>zvm</varname></entry> + <entry>s390 z/VM</entry> + </row> + + <row> + <entry><varname>vmware</varname></entry> + <entry>VMware Workstation or Server, and related products</entry> + </row> + + <row> + <entry><varname>microsoft</varname></entry> + <entry>Hyper-V, also known as Viridian or Windows Server Virtualization</entry> + </row> + + <row> + <entry><varname>oracle</varname></entry> + <entry>Oracle VM VirtualBox (historically marketed by innotek and Sun Microsystems)</entry> + </row> + + <row> + <entry><varname>xen</varname></entry> + <entry>Xen hypervisor (only domU, not dom0)</entry> + </row> + + <row> + <entry><varname>bochs</varname></entry> + <entry>Bochs Emulator</entry> + </row> + + <row> + <entry><varname>uml</varname></entry> + <entry>User-mode Linux</entry> + </row> + + <row> + <entry><varname>parallels</varname></entry> + <entry>Parallels Desktop, Parallels Server</entry> + </row> + + <row> + <entry><varname>bhyve</varname></entry> + <entry>bhyve, FreeBSD hypervisor</entry> + </row> + + <row> + <entry valign="top" morerows="5">Container</entry> + <entry><varname>openvz</varname></entry> + <entry>OpenVZ/Virtuozzo</entry> + </row> + + <row> + <entry><varname>lxc</varname></entry> + <entry>Linux container implementation by LXC</entry> + </row> + + <row> + <entry><varname>lxc-libvirt</varname></entry> + <entry>Linux container implementation by libvirt</entry> + </row> + + <row> + <entry><varname>systemd-nspawn</varname></entry> + <entry>systemd's minimal container implementation, see <citerefentry><refentrytitle>systemd-nspawn</refentrytitle><manvolnum>1</manvolnum></citerefentry></entry> + </row> + + <row> + <entry><varname>docker</varname></entry> + <entry>Docker container manager</entry> + </row> + + <row> + <entry><varname>rkt</varname></entry> + <entry>rkt app container runtime</entry> + </row> + </tbody> + </tgroup> + </table> + + <para>If multiple virtualization solutions are used, only the + "innermost" is detected and identified. That means if both + machine and container virtualization are used in + conjunction, only the latter will be identified (unless + <option>--vm</option> is passed).</para> + </refsect1> + + <refsect1> + <title>Options</title> + + <para>The following options are understood:</para> + + <variablelist> + <varlistentry> + <term><option>-c</option></term> + <term><option>--container</option></term> + + <listitem><para>Only detects container virtualization (i.e. + shared kernel virtualization).</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>-v</option></term> + <term><option>--vm</option></term> + + <listitem><para>Only detects hardware virtualization).</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>-r</option></term> + <term><option>--chroot</option></term> + + <listitem><para>Detect whether invoked in a + <citerefentry><refentrytitle>chroot</refentrytitle><manvolnum>2</manvolnum></citerefentry> + environment. In this mode, no output is written, but the return + value indicates whether the process was invoked in a + <function>chroot()</function> + environment or not.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--private-users</option></term> + + <listitem><para>Detect whether invoked in a user namespace. In this mode, no + output is written, but the return value indicates whether the process was invoked + inside of a user namespace or not. See + <citerefentry project='man-pages'><refentrytitle>user_namespaces</refentrytitle><manvolnum>7</manvolnum></citerefentry> + for more information.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>-q</option></term> + <term><option>--quiet</option></term> + + <listitem><para>Suppress output of the virtualization + technology identifier.</para></listitem> + </varlistentry> + + <xi:include href="standard-options.xml" xpointer="help" /> + <xi:include href="standard-options.xml" xpointer="version" /> + </variablelist> + + </refsect1> + + <refsect1> + <title>Exit status</title> + + <para>If a virtualization technology is detected, 0 is returned, a + non-zero code otherwise.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-nspawn</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>chroot</refentrytitle><manvolnum>2</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>namespaces</refentrytitle><manvolnum>7</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-firstboot/GNUmakefile b/src/grp-initprogs/systemd-firstboot/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-firstboot/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-firstboot/Makefile b/src/grp-initprogs/systemd-firstboot/Makefile new file mode 100644 index 0000000000..20ea125a52 --- /dev/null +++ b/src/grp-initprogs/systemd-firstboot/Makefile @@ -0,0 +1,47 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_FIRSTBOOT),) +systemd_firstboot_SOURCES = \ + src/firstboot/firstboot.c + +systemd_firstboot_LDADD = \ + libsystemd-shared.la \ + -lcrypt + +rootbin_PROGRAMS += \ + systemd-firstboot + +nodist_systemunit_DATA += \ + units/systemd-firstboot.service + +SYSINIT_TARGET_WANTS += \ + systemd-firstboot.service +endif # ENABLE_FIRSTBOOT + +EXTRA_DIST += \ + units/systemd-firstboot.service.in + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-firstboot/firstboot.c b/src/grp-initprogs/systemd-firstboot/firstboot.c new file mode 100644 index 0000000000..4ed3c23419 --- /dev/null +++ b/src/grp-initprogs/systemd-firstboot/firstboot.c @@ -0,0 +1,870 @@ +/*** + This file is part of systemd. + + Copyright 2014 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <fcntl.h> +#include <getopt.h> +#include <shadow.h> +#include <unistd.h> + +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/copy.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/fileio.h" +#include "systemd-basic/fs-util.h" +#include "systemd-basic/hostname-util.h" +#include "systemd-basic/locale-util.h" +#include "systemd-basic/mkdir.h" +#include "systemd-basic/parse-util.h" +#include "systemd-basic/path-util.h" +#include "systemd-basic/random-util.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/strv.h" +#include "systemd-basic/terminal-util.h" +#include "systemd-basic/time-util.h" +#include "systemd-basic/umask-util.h" +#include "systemd-basic/user-util.h" +#include "systemd-shared/ask-password-api.h" + +static char *arg_root = NULL; +static char *arg_locale = NULL; /* $LANG */ +static char *arg_locale_messages = NULL; /* $LC_MESSAGES */ +static char *arg_timezone = NULL; +static char *arg_hostname = NULL; +static sd_id128_t arg_machine_id = {}; +static char *arg_root_password = NULL; +static bool arg_prompt_locale = false; +static bool arg_prompt_timezone = false; +static bool arg_prompt_hostname = false; +static bool arg_prompt_root_password = false; +static bool arg_copy_locale = false; +static bool arg_copy_timezone = false; +static bool arg_copy_root_password = false; + +static bool press_any_key(void) { + char k = 0; + bool need_nl = true; + + printf("-- Press any key to proceed --"); + fflush(stdout); + + (void) read_one_char(stdin, &k, USEC_INFINITY, &need_nl); + + if (need_nl) + putchar('\n'); + + return k != 'q'; +} + +static void print_welcome(void) { + _cleanup_free_ char *pretty_name = NULL; + const char *os_release = NULL; + static bool done = false; + int r; + + if (done) + return; + + os_release = prefix_roota(arg_root, "/etc/os-release"); + r = parse_env_file(os_release, NEWLINE, + "PRETTY_NAME", &pretty_name, + NULL); + if (r == -ENOENT) { + + os_release = prefix_roota(arg_root, "/usr/lib/os-release"); + r = parse_env_file(os_release, NEWLINE, + "PRETTY_NAME", &pretty_name, + NULL); + } + + if (r < 0 && r != -ENOENT) + log_warning_errno(r, "Failed to read os-release file: %m"); + + printf("\nWelcome to your new installation of %s!\nPlease configure a few basic system settings:\n\n", + isempty(pretty_name) ? "GNU/Linux" : pretty_name); + + press_any_key(); + + done = true; +} + +static int show_menu(char **x, unsigned n_columns, unsigned width, unsigned percentage) { + unsigned n, per_column, i, j; + unsigned break_lines, break_modulo; + + assert(n_columns > 0); + + n = strv_length(x); + per_column = (n + n_columns - 1) / n_columns; + + break_lines = lines(); + if (break_lines > 2) + break_lines--; + + /* The first page gets two extra lines, since we want to show + * a title */ + break_modulo = break_lines; + if (break_modulo > 3) + break_modulo -= 3; + + for (i = 0; i < per_column; i++) { + + for (j = 0; j < n_columns; j ++) { + _cleanup_free_ char *e = NULL; + + if (j * per_column + i >= n) + break; + + e = ellipsize(x[j * per_column + i], width, percentage); + if (!e) + return log_oom(); + + printf("%4u) %-*s", j * per_column + i + 1, width, e); + } + + putchar('\n'); + + /* on the first screen we reserve 2 extra lines for the title */ + if (i % break_lines == break_modulo) { + if (!press_any_key()) + return 0; + } + } + + return 0; +} + +static int prompt_loop(const char *text, char **l, bool (*is_valid)(const char *name), char **ret) { + int r; + + assert(text); + assert(is_valid); + assert(ret); + + for (;;) { + _cleanup_free_ char *p = NULL; + unsigned u; + + r = ask_string(&p, "%s %s (empty to skip): ", special_glyph(TRIANGULAR_BULLET), text); + if (r < 0) + return log_error_errno(r, "Failed to query user: %m"); + + if (isempty(p)) { + log_warning("No data entered, skipping."); + return 0; + } + + r = safe_atou(p, &u); + if (r >= 0) { + char *c; + + if (u <= 0 || u > strv_length(l)) { + log_error("Specified entry number out of range."); + continue; + } + + log_info("Selected '%s'.", l[u-1]); + + c = strdup(l[u-1]); + if (!c) + return log_oom(); + + free(*ret); + *ret = c; + return 0; + } + + if (!is_valid(p)) { + log_error("Entered data invalid."); + continue; + } + + free(*ret); + *ret = p; + p = 0; + return 0; + } +} + +static int prompt_locale(void) { + _cleanup_strv_free_ char **locales = NULL; + int r; + + if (arg_locale || arg_locale_messages) + return 0; + + if (!arg_prompt_locale) + return 0; + + r = get_locales(&locales); + if (r < 0) + return log_error_errno(r, "Cannot query locales list: %m"); + + print_welcome(); + + printf("\nAvailable Locales:\n\n"); + r = show_menu(locales, 3, 22, 60); + if (r < 0) + return r; + + putchar('\n'); + + r = prompt_loop("Please enter system locale name or number", locales, locale_is_valid, &arg_locale); + if (r < 0) + return r; + + if (isempty(arg_locale)) + return 0; + + r = prompt_loop("Please enter system message locale name or number", locales, locale_is_valid, &arg_locale_messages); + if (r < 0) + return r; + + return 0; +} + +static int process_locale(void) { + const char *etc_localeconf; + char* locales[3]; + unsigned i = 0; + int r; + + etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf"); + if (laccess(etc_localeconf, F_OK) >= 0) + return 0; + + if (arg_copy_locale && arg_root) { + + mkdir_parents(etc_localeconf, 0755); + r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0); + if (r != -ENOENT) { + if (r < 0) + return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf); + + log_info("%s copied.", etc_localeconf); + return 0; + } + } + + r = prompt_locale(); + if (r < 0) + return r; + + if (!isempty(arg_locale)) + locales[i++] = strjoina("LANG=", arg_locale); + if (!isempty(arg_locale_messages) && !streq(arg_locale_messages, arg_locale)) + locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages); + + if (i == 0) + return 0; + + locales[i] = NULL; + + mkdir_parents(etc_localeconf, 0755); + r = write_env_file(etc_localeconf, locales); + if (r < 0) + return log_error_errno(r, "Failed to write %s: %m", etc_localeconf); + + log_info("%s written.", etc_localeconf); + return 0; +} + +static int prompt_timezone(void) { + _cleanup_strv_free_ char **zones = NULL; + int r; + + if (arg_timezone) + return 0; + + if (!arg_prompt_timezone) + return 0; + + r = get_timezones(&zones); + if (r < 0) + return log_error_errno(r, "Cannot query timezone list: %m"); + + print_welcome(); + + printf("\nAvailable Time Zones:\n\n"); + r = show_menu(zones, 3, 22, 30); + if (r < 0) + return r; + + putchar('\n'); + + r = prompt_loop("Please enter timezone name or number", zones, timezone_is_valid, &arg_timezone); + if (r < 0) + return r; + + return 0; +} + +static int process_timezone(void) { + const char *etc_localtime, *e; + int r; + + etc_localtime = prefix_roota(arg_root, "/etc/localtime"); + if (laccess(etc_localtime, F_OK) >= 0) + return 0; + + if (arg_copy_timezone && arg_root) { + _cleanup_free_ char *p = NULL; + + r = readlink_malloc("/etc/localtime", &p); + if (r != -ENOENT) { + if (r < 0) + return log_error_errno(r, "Failed to read host timezone: %m"); + + mkdir_parents(etc_localtime, 0755); + if (symlink(p, etc_localtime) < 0) + return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime); + + log_info("%s copied.", etc_localtime); + return 0; + } + } + + r = prompt_timezone(); + if (r < 0) + return r; + + if (isempty(arg_timezone)) + return 0; + + e = strjoina("../usr/share/zoneinfo/", arg_timezone); + + mkdir_parents(etc_localtime, 0755); + if (symlink(e, etc_localtime) < 0) + return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime); + + log_info("%s written", etc_localtime); + return 0; +} + +static int prompt_hostname(void) { + int r; + + if (arg_hostname) + return 0; + + if (!arg_prompt_hostname) + return 0; + + print_welcome(); + putchar('\n'); + + for (;;) { + _cleanup_free_ char *h = NULL; + + r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(TRIANGULAR_BULLET)); + if (r < 0) + return log_error_errno(r, "Failed to query hostname: %m"); + + if (isempty(h)) { + log_warning("No hostname entered, skipping."); + break; + } + + if (!hostname_is_valid(h, true)) { + log_error("Specified hostname invalid."); + continue; + } + + /* Get rid of the trailing dot that we allow, but don't want to see */ + arg_hostname = hostname_cleanup(h); + h = NULL; + break; + } + + return 0; +} + +static int process_hostname(void) { + const char *etc_hostname; + int r; + + etc_hostname = prefix_roota(arg_root, "/etc/hostname"); + if (laccess(etc_hostname, F_OK) >= 0) + return 0; + + r = prompt_hostname(); + if (r < 0) + return r; + + if (isempty(arg_hostname)) + return 0; + + mkdir_parents(etc_hostname, 0755); + r = write_string_file(etc_hostname, arg_hostname, WRITE_STRING_FILE_CREATE); + if (r < 0) + return log_error_errno(r, "Failed to write %s: %m", etc_hostname); + + log_info("%s written.", etc_hostname); + return 0; +} + +static int process_machine_id(void) { + const char *etc_machine_id; + char id[SD_ID128_STRING_MAX]; + int r; + + etc_machine_id = prefix_roota(arg_root, "/etc/machine-id"); + if (laccess(etc_machine_id, F_OK) >= 0) + return 0; + + if (sd_id128_is_null(arg_machine_id)) + return 0; + + mkdir_parents(etc_machine_id, 0755); + r = write_string_file(etc_machine_id, sd_id128_to_string(arg_machine_id, id), WRITE_STRING_FILE_CREATE); + if (r < 0) + return log_error_errno(r, "Failed to write machine id: %m"); + + log_info("%s written.", etc_machine_id); + return 0; +} + +static int prompt_root_password(void) { + const char *msg1, *msg2, *etc_shadow; + int r; + + if (arg_root_password) + return 0; + + if (!arg_prompt_root_password) + return 0; + + etc_shadow = prefix_roota(arg_root, "/etc/shadow"); + if (laccess(etc_shadow, F_OK) >= 0) + return 0; + + print_welcome(); + putchar('\n'); + + msg1 = strjoina(special_glyph(TRIANGULAR_BULLET), " Please enter a new root password (empty to skip): "); + msg2 = strjoina(special_glyph(TRIANGULAR_BULLET), " Please enter new root password again: "); + + for (;;) { + _cleanup_string_free_erase_ char *a = NULL, *b = NULL; + + r = ask_password_tty(msg1, NULL, 0, 0, NULL, &a); + if (r < 0) + return log_error_errno(r, "Failed to query root password: %m"); + + if (isempty(a)) { + log_warning("No password entered, skipping."); + break; + } + + r = ask_password_tty(msg2, NULL, 0, 0, NULL, &b); + if (r < 0) + return log_error_errno(r, "Failed to query root password: %m"); + + if (!streq(a, b)) { + log_error("Entered passwords did not match, please try again."); + continue; + } + + arg_root_password = a; + a = NULL; + break; + } + + return 0; +} + +static int write_root_shadow(const char *path, const struct spwd *p) { + _cleanup_fclose_ FILE *f = NULL; + assert(path); + assert(p); + + RUN_WITH_UMASK(0777) + f = fopen(path, "wex"); + if (!f) + return -errno; + + errno = 0; + if (putspent(p, f) != 0) + return errno > 0 ? -errno : -EIO; + + return fflush_and_check(f); +} + +static int process_root_password(void) { + + static const char table[] = + "abcdefghijklmnopqrstuvwxyz" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "0123456789" + "./"; + + struct spwd item = { + .sp_namp = (char*) "root", + .sp_min = -1, + .sp_max = -1, + .sp_warn = -1, + .sp_inact = -1, + .sp_expire = -1, + .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */ + }; + + _cleanup_close_ int lock = -1; + char salt[3+16+1+1]; + uint8_t raw[16]; + unsigned i; + char *j; + + const char *etc_shadow; + int r; + + etc_shadow = prefix_roota(arg_root, "/etc/shadow"); + if (laccess(etc_shadow, F_OK) >= 0) + return 0; + + mkdir_parents(etc_shadow, 0755); + + lock = take_etc_passwd_lock(arg_root); + if (lock < 0) + return log_error_errno(lock, "Failed to take a lock: %m"); + + if (arg_copy_root_password && arg_root) { + struct spwd *p; + + errno = 0; + p = getspnam("root"); + if (p || errno != ENOENT) { + if (!p) { + if (!errno) + errno = EIO; + + return log_error_errno(errno, "Failed to find shadow entry for root: %m"); + } + + r = write_root_shadow(etc_shadow, p); + if (r < 0) + return log_error_errno(r, "Failed to write %s: %m", etc_shadow); + + log_info("%s copied.", etc_shadow); + return 0; + } + } + + r = prompt_root_password(); + if (r < 0) + return r; + + if (!arg_root_password) + return 0; + + r = dev_urandom(raw, 16); + if (r < 0) + return log_error_errno(r, "Failed to get salt: %m"); + + /* We only bother with SHA512 hashed passwords, the rest is legacy, and we don't do legacy. */ + assert_cc(sizeof(table) == 64 + 1); + j = stpcpy(salt, "$6$"); + for (i = 0; i < 16; i++) + j[i] = table[raw[i] & 63]; + j[i++] = '$'; + j[i] = 0; + + errno = 0; + item.sp_pwdp = crypt(arg_root_password, salt); + if (!item.sp_pwdp) { + if (!errno) + errno = EINVAL; + + return log_error_errno(errno, "Failed to encrypt password: %m"); + } + + item.sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY); + + r = write_root_shadow(etc_shadow, &item); + if (r < 0) + return log_error_errno(r, "Failed to write %s: %m", etc_shadow); + + log_info("%s written.", etc_shadow); + return 0; +} + +static void help(void) { + printf("%s [OPTIONS...]\n\n" + "Configures basic settings of the system.\n\n" + " -h --help Show this help\n" + " --version Show package version\n" + " --root=PATH Operate on an alternate filesystem root\n" + " --locale=LOCALE Set primary locale (LANG=)\n" + " --locale-messages=LOCALE Set message locale (LC_MESSAGES=)\n" + " --timezone=TIMEZONE Set timezone\n" + " --hostname=NAME Set host name\n" + " --machine-ID=ID Set machine ID\n" + " --root-password=PASSWORD Set root password\n" + " --root-password-file=FILE Set root password from file\n" + " --prompt-locale Prompt the user for locale settings\n" + " --prompt-timezone Prompt the user for timezone\n" + " --prompt-hostname Prompt the user for hostname\n" + " --prompt-root-password Prompt the user for root password\n" + " --prompt Prompt for all of the above\n" + " --copy-locale Copy locale from host\n" + " --copy-timezone Copy timezone from host\n" + " --copy-root-password Copy root password from host\n" + " --copy Copy locale, timezone, root password\n" + " --setup-machine-id Generate a new random machine ID\n" + , program_invocation_short_name); +} + +static int parse_argv(int argc, char *argv[]) { + + enum { + ARG_VERSION = 0x100, + ARG_ROOT, + ARG_LOCALE, + ARG_LOCALE_MESSAGES, + ARG_TIMEZONE, + ARG_HOSTNAME, + ARG_MACHINE_ID, + ARG_ROOT_PASSWORD, + ARG_ROOT_PASSWORD_FILE, + ARG_PROMPT, + ARG_PROMPT_LOCALE, + ARG_PROMPT_TIMEZONE, + ARG_PROMPT_HOSTNAME, + ARG_PROMPT_ROOT_PASSWORD, + ARG_COPY, + ARG_COPY_LOCALE, + ARG_COPY_TIMEZONE, + ARG_COPY_ROOT_PASSWORD, + ARG_SETUP_MACHINE_ID, + }; + + static const struct option options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + { "root", required_argument, NULL, ARG_ROOT }, + { "locale", required_argument, NULL, ARG_LOCALE }, + { "locale-messages", required_argument, NULL, ARG_LOCALE_MESSAGES }, + { "timezone", required_argument, NULL, ARG_TIMEZONE }, + { "hostname", required_argument, NULL, ARG_HOSTNAME }, + { "machine-id", required_argument, NULL, ARG_MACHINE_ID }, + { "root-password", required_argument, NULL, ARG_ROOT_PASSWORD }, + { "root-password-file", required_argument, NULL, ARG_ROOT_PASSWORD_FILE }, + { "prompt", no_argument, NULL, ARG_PROMPT }, + { "prompt-locale", no_argument, NULL, ARG_PROMPT_LOCALE }, + { "prompt-timezone", no_argument, NULL, ARG_PROMPT_TIMEZONE }, + { "prompt-hostname", no_argument, NULL, ARG_PROMPT_HOSTNAME }, + { "prompt-root-password", no_argument, NULL, ARG_PROMPT_ROOT_PASSWORD }, + { "copy", no_argument, NULL, ARG_COPY }, + { "copy-locale", no_argument, NULL, ARG_COPY_LOCALE }, + { "copy-timezone", no_argument, NULL, ARG_COPY_TIMEZONE }, + { "copy-root-password", no_argument, NULL, ARG_COPY_ROOT_PASSWORD }, + { "setup-machine-id", no_argument, NULL, ARG_SETUP_MACHINE_ID }, + {} + }; + + int r, c; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) + + switch (c) { + + case 'h': + help(); + return 0; + + case ARG_VERSION: + return version(); + + case ARG_ROOT: + r = parse_path_argument_and_warn(optarg, true, &arg_root); + if (r < 0) + return r; + break; + + case ARG_LOCALE: + if (!locale_is_valid(optarg)) { + log_error("Locale %s is not valid.", optarg); + return -EINVAL; + } + + r = free_and_strdup(&arg_locale, optarg); + if (r < 0) + return log_oom(); + + break; + + case ARG_LOCALE_MESSAGES: + if (!locale_is_valid(optarg)) { + log_error("Locale %s is not valid.", optarg); + return -EINVAL; + } + + r = free_and_strdup(&arg_locale_messages, optarg); + if (r < 0) + return log_oom(); + + break; + + case ARG_TIMEZONE: + if (!timezone_is_valid(optarg)) { + log_error("Timezone %s is not valid.", optarg); + return -EINVAL; + } + + r = free_and_strdup(&arg_timezone, optarg); + if (r < 0) + return log_oom(); + + break; + + case ARG_ROOT_PASSWORD: + r = free_and_strdup(&arg_root_password, optarg); + if (r < 0) + return log_oom(); + break; + + case ARG_ROOT_PASSWORD_FILE: + arg_root_password = mfree(arg_root_password); + + r = read_one_line_file(optarg, &arg_root_password); + if (r < 0) + return log_error_errno(r, "Failed to read %s: %m", optarg); + + break; + + case ARG_HOSTNAME: + if (!hostname_is_valid(optarg, true)) { + log_error("Host name %s is not valid.", optarg); + return -EINVAL; + } + + hostname_cleanup(optarg); + r = free_and_strdup(&arg_hostname, optarg); + if (r < 0) + return log_oom(); + + break; + + case ARG_MACHINE_ID: + if (sd_id128_from_string(optarg, &arg_machine_id) < 0) { + log_error("Failed to parse machine id %s.", optarg); + return -EINVAL; + } + + break; + + case ARG_PROMPT: + arg_prompt_locale = arg_prompt_timezone = arg_prompt_hostname = arg_prompt_root_password = true; + break; + + case ARG_PROMPT_LOCALE: + arg_prompt_locale = true; + break; + + case ARG_PROMPT_TIMEZONE: + arg_prompt_timezone = true; + break; + + case ARG_PROMPT_HOSTNAME: + arg_prompt_hostname = true; + break; + + case ARG_PROMPT_ROOT_PASSWORD: + arg_prompt_root_password = true; + break; + + case ARG_COPY: + arg_copy_locale = arg_copy_timezone = arg_copy_root_password = true; + break; + + case ARG_COPY_LOCALE: + arg_copy_locale = true; + break; + + case ARG_COPY_TIMEZONE: + arg_copy_timezone = true; + break; + + case ARG_COPY_ROOT_PASSWORD: + arg_copy_root_password = true; + break; + + case ARG_SETUP_MACHINE_ID: + + r = sd_id128_randomize(&arg_machine_id); + if (r < 0) + return log_error_errno(r, "Failed to generate randomized machine ID: %m"); + + break; + + case '?': + return -EINVAL; + + default: + assert_not_reached("Unhandled option"); + } + + return 1; +} + +int main(int argc, char *argv[]) { + int r; + + r = parse_argv(argc, argv); + if (r <= 0) + goto finish; + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + r = process_locale(); + if (r < 0) + goto finish; + + r = process_timezone(); + if (r < 0) + goto finish; + + r = process_hostname(); + if (r < 0) + goto finish; + + r = process_machine_id(); + if (r < 0) + goto finish; + + r = process_root_password(); + if (r < 0) + goto finish; + +finish: + free(arg_root); + free(arg_locale); + free(arg_locale_messages); + free(arg_timezone); + free(arg_hostname); + string_erase(arg_root_password); + free(arg_root_password); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-firstboot/systemd-firstboot.service.in b/src/grp-initprogs/systemd-firstboot/systemd-firstboot.service.in new file mode 100644 index 0000000000..405c6f3fd2 --- /dev/null +++ b/src/grp-initprogs/systemd-firstboot/systemd-firstboot.service.in @@ -0,0 +1,24 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=First Boot Wizard +Documentation=man:systemd-firstboot(1) +DefaultDependencies=no +Conflicts=shutdown.target +After=systemd-remount-fs.service +Before=systemd-sysusers.service sysinit.target shutdown.target +ConditionPathIsReadWrite=/etc +ConditionFirstBoot=yes + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootbindir@/systemd-firstboot --prompt-locale --prompt-timezone --prompt-root-password +StandardOutput=tty +StandardInput=tty +StandardError=tty diff --git a/src/grp-initprogs/systemd-firstboot/systemd-firstboot.xml b/src/grp-initprogs/systemd-firstboot/systemd-firstboot.xml new file mode 100644 index 0000000000..b269e48113 --- /dev/null +++ b/src/grp-initprogs/systemd-firstboot/systemd-firstboot.xml @@ -0,0 +1,259 @@ +<?xml version='1.0'?> <!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" + "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + +<!-- + This file is part of systemd. + + Copyright 2014 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> + +<refentry id="systemd-firstboot" conditional='ENABLE_FIRSTBOOT' + xmlns:xi="http://www.w3.org/2001/XInclude"> + + <refentryinfo> + <title>systemd-firstboot</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-firstboot</refentrytitle> + <manvolnum>1</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-firstboot</refname> + <refname>systemd-firstboot.service</refname> + <refpurpose>Initialize basic system settings on or before the first boot-up of a system</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <cmdsynopsis> + <command>systemd-firstboot</command> + <arg choice="opt" rep="repeat">OPTIONS</arg> + </cmdsynopsis> + + <para><filename>systemd-firstboot.service</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><command>systemd-firstboot</command> initializes the most + basic system settings interactively on the first boot, or + optionally non-interactively when a system image is created. The + following settings may be set up:</para> + + <itemizedlist> + <listitem><para>The system locale, more specifically the two + locale variables <varname>LANG=</varname> and + <varname>LC_MESSAGES</varname></para></listitem> + + <listitem><para>The system time zone</para></listitem> + + <listitem><para>The system host name</para></listitem> + + <listitem><para>The machine ID of the system</para></listitem> + + <listitem><para>The root user's password</para></listitem> + </itemizedlist> + + <para>Each of the fields may either be queried interactively by + users, set non-interactively on the tool's command line, or be + copied from a host system that is used to set up the system + image.</para> + + <para>If a setting is already initialized, it will not be + overwritten and the user will not be prompted for the + setting.</para> + + <para>Note that this tool operates directly on the file system and + does not involve any running system services, unlike + <citerefentry project='man-pages'><refentrytitle>localectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry> + or + <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>. + This allows <command>systemd-firstboot</command> to operate on + mounted but not booted disk images and in early boot. It is not + recommended to use <command>systemd-firstboot</command> on the + running system while it is up.</para> + </refsect1> + + <refsect1> + <title>Options</title> + + <para>The following options are understood:</para> + + <variablelist> + <varlistentry> + <term><option>--root=<replaceable>root</replaceable></option></term> + <listitem><para>Takes a directory path as an argument. All + paths will be prefixed with the given alternate + <replaceable>root</replaceable> path, including config search + paths. This is useful to operate on a system image mounted to + the specified directory instead of the host system itself. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--locale=<replaceable>LOCALE</replaceable></option></term> + <term><option>--locale-messages=<replaceable>LOCALE</replaceable></option></term> + + <listitem><para>Sets the system locale, more specifically the + <varname>LANG=</varname> and <varname>LC_MESSAGES</varname> + settings. The argument should be a valid locale identifier, + such as <literal>de_DE.UTF-8</literal>. This controls the + <citerefentry project='man-pages'><refentrytitle>locale.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry> + configuration file.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--timezone=<replaceable>TIMEZONE</replaceable></option></term> + + <listitem><para>Sets the system time zone. The argument should + be a valid time zone identifier, such as + <literal>Europe/Berlin</literal>. This controls the + <citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>5</manvolnum></citerefentry> + symlink.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--hostname=<replaceable>HOSTNAME</replaceable></option></term> + + <listitem><para>Sets the system hostname. The argument should + be a host name, compatible with DNS. This controls the + <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry> + configuration file.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--machine-id=<replaceable>ID</replaceable></option></term> + + <listitem><para>Sets the system's machine ID. This controls + the + <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry> + file.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--root-password=<replaceable>PASSWORD</replaceable></option></term> + <term><option>--root-password-file=<replaceable>PATH</replaceable></option></term> + + <listitem><para>Sets the password of the system's root user. + This creates a + <citerefentry project='die-net'><refentrytitle>shadow</refentrytitle><manvolnum>5</manvolnum></citerefentry> + file. This setting exists in two forms: + <option>--root-password=</option> accepts the password to set + directly on the command line, and + <option>--root-password-file=</option> reads it from a file. + Note that it is not recommended to specify passwords on the + command line, as other users might be able to see them simply + by invoking + <citerefentry project='die-net'><refentrytitle>ps</refentrytitle><manvolnum>1</manvolnum></citerefentry>.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--prompt-locale</option></term> + <term><option>--prompt-timezone</option></term> + <term><option>--prompt-hostname</option></term> + <term><option>--prompt-root-password</option></term> + + <listitem><para>Prompt the user interactively for a specific + basic setting. Note that any explicit configuration settings + specified on the command line take precedence, and the user is + not prompted for it.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--prompt</option></term> + + <listitem><para>Query the user for locale, timezone, hostname + and root password. This is equivalent to specifying + <option>--prompt-locale</option>, + <option>--prompt-timezone</option>, + <option>--prompt-hostname</option>, + <option>--prompt-root-password</option> in combination.</para> + </listitem> + </varlistentry> + + <varlistentry> + <term><option>--copy-locale</option></term> + <term><option>--copy-timezone</option></term> + <term><option>--copy-root-password</option></term> + + <listitem><para>Copy a specific basic setting from the host. + This only works in combination with <option>--root=</option> + (see above).</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--copy</option></term> + + <listitem><para>Copy locale, time zone and root password from + the host. This is equivalent to specifying + <option>--copy-locale</option>, + <option>--copy-timezone</option>, + <option>--copy-root-password</option> in combination.</para> + </listitem> + </varlistentry> + + <varlistentry> + <term><option>--setup-machine-id</option></term> + + <listitem><para>Initialize the system's machine ID to a random + ID. This only works in combination with + <option>--root=</option>.</para></listitem> + </varlistentry> + + <xi:include href="standard-options.xml" xpointer="help" /> + <xi:include href="standard-options.xml" xpointer="version" /> + </variablelist> + + </refsect1> + + <refsect1> + <title>Exit status</title> + + <para>On success, 0 is returned, a non-zero failure code + otherwise.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>locale.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry><refentrytitle>hostname</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry project='die-net'><refentrytitle>shadow</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-machine-id-setup</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>localectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>hostnamectl</refentrytitle><manvolnum>1</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-fsck/GNUmakefile b/src/grp-initprogs/systemd-fsck/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-fsck/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-fsck/Makefile b/src/grp-initprogs/systemd-fsck/Makefile new file mode 100644 index 0000000000..8a223a7f70 --- /dev/null +++ b/src/grp-initprogs/systemd-fsck/Makefile @@ -0,0 +1,33 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +rootlibexec_PROGRAMS += systemd-fsck +systemd_fsck_SOURCES = \ + src/fsck/fsck.c + +systemd_fsck_LDADD = \ + libsystemd-shared.la + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-fsck/fsck.c b/src/grp-initprogs/systemd-fsck/fsck.c new file mode 100644 index 0000000000..df6f96096b --- /dev/null +++ b/src/grp-initprogs/systemd-fsck/fsck.c @@ -0,0 +1,487 @@ +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + Copyright 2014 Holger Hans Peter Freyther + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stdio.h> +#include <sys/file.h> +#include <sys/prctl.h> +#include <sys/stat.h> +#include <unistd.h> + +#include <systemd/sd-bus.h> + +#include "sd-bus/bus-common-errors.h" +#include "sd-bus/bus-error.h" +#include "sd-bus/bus-util.h" +#include "sd-device/device-util.h" +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/fs-util.h" +#include "systemd-basic/parse-util.h" +#include "systemd-basic/path-util.h" +#include "systemd-basic/proc-cmdline.h" +#include "systemd-basic/process-util.h" +#include "systemd-basic/signal-util.h" +#include "systemd-basic/socket-util.h" +#include "systemd-basic/special.h" +#include "systemd-basic/stdio-util.h" +#include "systemd-basic/util.h" +#include "systemd-staging/sd-device.h" + +/* exit codes as defined in fsck(8) */ +enum { + FSCK_SUCCESS = 0, + FSCK_ERROR_CORRECTED = 1, + FSCK_SYSTEM_SHOULD_REBOOT = 2, + FSCK_ERRORS_LEFT_UNCORRECTED = 4, + FSCK_OPERATIONAL_ERROR = 8, + FSCK_USAGE_OR_SYNTAX_ERROR = 16, + FSCK_USER_CANCELLED = 32, + FSCK_SHARED_LIB_ERROR = 128, +}; + +static bool arg_skip = false; +static bool arg_force = false; +static bool arg_show_progress = false; +static const char *arg_repair = "-a"; + +static void start_target(const char *target, const char *mode) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; + int r; + + assert(target); + + r = bus_connect_system_systemd(&bus); + if (r < 0) { + log_error_errno(r, "Failed to get D-Bus connection: %m"); + return; + } + + log_info("Running request %s/start/replace", target); + + /* Start these units only if we can replace base.target with it */ + r = sd_bus_call_method(bus, + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "StartUnitReplace", + &error, + NULL, + "sss", "basic.target", target, mode); + + /* Don't print a warning if we aren't called during startup */ + if (r < 0 && !sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_JOB)) + log_error("Failed to start unit: %s", bus_error_message(&error, r)); +} + +static int parse_proc_cmdline_item(const char *key, const char *value, void *data) { + int r; + + assert(key); + + if (streq(key, "fsck.mode") && value) { + + if (streq(value, "auto")) + arg_force = arg_skip = false; + else if (streq(value, "force")) + arg_force = true; + else if (streq(value, "skip")) + arg_skip = true; + else + log_warning("Invalid fsck.mode= parameter '%s'. Ignoring.", value); + + } else if (streq(key, "fsck.repair") && value) { + + if (streq(value, "preen")) + arg_repair = "-a"; + else { + r = parse_boolean(value); + if (r > 0) + arg_repair = "-y"; + else if (r == 0) + arg_repair = "-n"; + else + log_warning("Invalid fsck.repair= parameter '%s'. Ignoring.", value); + } + } + +#ifdef HAVE_SYSV_COMPAT + else if (streq(key, "fastboot") && !value) { + log_warning("Please pass 'fsck.mode=skip' rather than 'fastboot' on the kernel command line."); + arg_skip = true; + + } else if (streq(key, "forcefsck") && !value) { + log_warning("Please pass 'fsck.mode=force' rather than 'forcefsck' on the kernel command line."); + arg_force = true; + } +#endif + + return 0; +} + +static void test_files(void) { + +#ifdef HAVE_SYSV_COMPAT + if (access("/fastboot", F_OK) >= 0) { + log_error("Please pass 'fsck.mode=skip' on the kernel command line rather than creating /fastboot on the root file system."); + arg_skip = true; + } + + if (access("/forcefsck", F_OK) >= 0) { + log_error("Please pass 'fsck.mode=force' on the kernel command line rather than creating /forcefsck on the root file system."); + arg_force = true; + } +#endif + + arg_show_progress = access("/run/systemd/show-status", F_OK) >= 0; +} + +static double percent(int pass, unsigned long cur, unsigned long max) { + /* Values stolen from e2fsck */ + + static const int pass_table[] = { + 0, 70, 90, 92, 95, 100 + }; + + if (pass <= 0) + return 0.0; + + if ((unsigned) pass >= ELEMENTSOF(pass_table) || max == 0) + return 100.0; + + return (double) pass_table[pass-1] + + ((double) pass_table[pass] - (double) pass_table[pass-1]) * + (double) cur / (double) max; +} + +static int process_progress(int fd) { + _cleanup_fclose_ FILE *console = NULL, *f = NULL; + usec_t last = 0; + bool locked = false; + int clear = 0, r; + + /* No progress pipe to process? Then we are a NOP. */ + if (fd < 0) + return 0; + + f = fdopen(fd, "re"); + if (!f) { + safe_close(fd); + return -errno; + } + + console = fopen("/dev/console", "we"); + if (!console) + return -ENOMEM; + + for (;;) { + int pass, m; + unsigned long cur, max; + _cleanup_free_ char *device = NULL; + double p; + usec_t t; + + if (fscanf(f, "%i %lu %lu %ms", &pass, &cur, &max, &device) != 4) { + + if (ferror(f)) + r = log_warning_errno(errno, "Failed to read from progress pipe: %m"); + else if (feof(f)) + r = 0; + else { + log_warning("Failed to parse progress pipe data"); + r = -EBADMSG; + } + break; + } + + /* Only show one progress counter at max */ + if (!locked) { + if (flock(fileno(console), LOCK_EX|LOCK_NB) < 0) + continue; + + locked = true; + } + + /* Only update once every 50ms */ + t = now(CLOCK_MONOTONIC); + if (last + 50 * USEC_PER_MSEC > t) + continue; + + last = t; + + p = percent(pass, cur, max); + fprintf(console, "\r%s: fsck %3.1f%% complete...\r%n", device, p, &m); + fflush(console); + + if (m > clear) + clear = m; + } + + if (clear > 0) { + unsigned j; + + fputc('\r', console); + for (j = 0; j < (unsigned) clear; j++) + fputc(' ', console); + fputc('\r', console); + fflush(console); + } + + return r; +} + +static int fsck_progress_socket(void) { + static const union sockaddr_union sa = { + .un.sun_family = AF_UNIX, + .un.sun_path = "/run/systemd/fsck.progress", + }; + + int fd, r; + + fd = socket(AF_UNIX, SOCK_STREAM, 0); + if (fd < 0) + return log_warning_errno(errno, "socket(): %m"); + + if (connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) { + r = log_full_errno(errno == ECONNREFUSED || errno == ENOENT ? LOG_DEBUG : LOG_WARNING, + errno, "Failed to connect to progress socket %s, ignoring: %m", sa.un.sun_path); + safe_close(fd); + return r; + } + + return fd; +} + +int main(int argc, char *argv[]) { + _cleanup_close_pair_ int progress_pipe[2] = { -1, -1 }; + _cleanup_(sd_device_unrefp) sd_device *dev = NULL; + const char *device, *type; + bool root_directory; + siginfo_t status; + struct stat st; + int r; + pid_t pid; + + if (argc > 2) { + log_error("This program expects one or no arguments."); + return EXIT_FAILURE; + } + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + r = parse_proc_cmdline(parse_proc_cmdline_item, NULL, true); + if (r < 0) + log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m"); + + test_files(); + + if (!arg_force && arg_skip) { + r = 0; + goto finish; + } + + if (argc > 1) { + device = argv[1]; + + if (stat(device, &st) < 0) { + r = log_error_errno(errno, "Failed to stat %s: %m", device); + goto finish; + } + + if (!S_ISBLK(st.st_mode)) { + log_error("%s is not a block device.", device); + r = -EINVAL; + goto finish; + } + + r = sd_device_new_from_devnum(&dev, 'b', st.st_rdev); + if (r < 0) { + log_error_errno(r, "Failed to detect device %s: %m", device); + goto finish; + } + + root_directory = false; + } else { + struct timespec times[2]; + + /* Find root device */ + + if (stat("/", &st) < 0) { + r = log_error_errno(errno, "Failed to stat() the root directory: %m"); + goto finish; + } + + /* Virtual root devices don't need an fsck */ + if (major(st.st_dev) == 0) { + log_debug("Root directory is virtual or btrfs, skipping check."); + r = 0; + goto finish; + } + + /* check if we are already writable */ + times[0] = st.st_atim; + times[1] = st.st_mtim; + + if (utimensat(AT_FDCWD, "/", times, 0) == 0) { + log_info("Root directory is writable, skipping check."); + r = 0; + goto finish; + } + + r = sd_device_new_from_devnum(&dev, 'b', st.st_dev); + if (r < 0) { + log_error_errno(r, "Failed to detect root device: %m"); + goto finish; + } + + r = sd_device_get_devname(dev, &device); + if (r < 0) { + log_error_errno(r, "Failed to detect device node of root directory: %m"); + goto finish; + } + + root_directory = true; + } + + r = sd_device_get_property_value(dev, "ID_FS_TYPE", &type); + if (r >= 0) { + r = fsck_exists(type); + if (r < 0) + log_warning_errno(r, "Couldn't detect if fsck.%s may be used for %s, proceeding: %m", type, device); + else if (r == 0) { + log_info("fsck.%s doesn't exist, not checking file system on %s.", type, device); + goto finish; + } + } + + if (arg_show_progress) { + if (pipe(progress_pipe) < 0) { + r = log_error_errno(errno, "pipe(): %m"); + goto finish; + } + } + + pid = fork(); + if (pid < 0) { + r = log_error_errno(errno, "fork(): %m"); + goto finish; + } + if (pid == 0) { + char dash_c[sizeof("-C")-1 + DECIMAL_STR_MAX(int) + 1]; + int progress_socket = -1; + const char *cmdline[9]; + int i = 0; + + /* Child */ + + (void) reset_all_signal_handlers(); + (void) reset_signal_mask(); + assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0); + + /* Close the reading side of the progress pipe */ + progress_pipe[0] = safe_close(progress_pipe[0]); + + /* Try to connect to a progress management daemon, if there is one */ + progress_socket = fsck_progress_socket(); + if (progress_socket >= 0) { + /* If this worked we close the progress pipe early, and just use the socket */ + progress_pipe[1] = safe_close(progress_pipe[1]); + xsprintf(dash_c, "-C%i", progress_socket); + } else if (progress_pipe[1] >= 0) { + /* Otherwise if we have the progress pipe to our own local handle, we use it */ + xsprintf(dash_c, "-C%i", progress_pipe[1]); + } else + dash_c[0] = 0; + + cmdline[i++] = "/sbin/fsck"; + cmdline[i++] = arg_repair; + cmdline[i++] = "-T"; + + /* + * Since util-linux v2.25 fsck uses /run/fsck/<diskname>.lock files. + * The previous versions use flock for the device and conflict with + * udevd, see https://bugs.freedesktop.org/show_bug.cgi?id=79576#c5 + */ + cmdline[i++] = "-l"; + + if (!root_directory) + cmdline[i++] = "-M"; + + if (arg_force) + cmdline[i++] = "-f"; + + if (!isempty(dash_c)) + cmdline[i++] = dash_c; + + cmdline[i++] = device; + cmdline[i++] = NULL; + + execv(cmdline[0], (char**) cmdline); + _exit(FSCK_OPERATIONAL_ERROR); + } + + progress_pipe[1] = safe_close(progress_pipe[1]); + (void) process_progress(progress_pipe[0]); + progress_pipe[0] = -1; + + r = wait_for_terminate(pid, &status); + if (r < 0) { + log_error_errno(r, "waitid(): %m"); + goto finish; + } + + if (status.si_code != CLD_EXITED || (status.si_status & ~1)) { + + if (status.si_code == CLD_KILLED || status.si_code == CLD_DUMPED) + log_error("fsck terminated by signal %s.", signal_to_string(status.si_status)); + else if (status.si_code == CLD_EXITED) + log_error("fsck failed with error code %i.", status.si_status); + else + log_error("fsck failed due to unknown reason."); + + r = -EINVAL; + + if (status.si_code == CLD_EXITED && (status.si_status & FSCK_SYSTEM_SHOULD_REBOOT) && root_directory) + /* System should be rebooted. */ + start_target(SPECIAL_REBOOT_TARGET, "replace-irreversibly"); + else if (status.si_code == CLD_EXITED && (status.si_status & (FSCK_SYSTEM_SHOULD_REBOOT | FSCK_ERRORS_LEFT_UNCORRECTED))) + /* Some other problem */ + start_target(SPECIAL_EMERGENCY_TARGET, "replace"); + else { + log_warning("Ignoring error."); + r = 0; + } + + } else + r = 0; + + if (status.si_code == CLD_EXITED && (status.si_status & FSCK_ERROR_CORRECTED)) + (void) touch("/run/systemd/quotacheck"); + +finish: + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-fsck/systemd-fsck@.service.in b/src/grp-initprogs/systemd-fsck/systemd-fsck@.service.in new file mode 100644 index 0000000000..6ca6b07e9e --- /dev/null +++ b/src/grp-initprogs/systemd-fsck/systemd-fsck@.service.in @@ -0,0 +1,20 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=File System Check on %f +Documentation=man:systemd-fsck@.service(8) +DefaultDependencies=no +BindsTo=%i.device +After=%i.device systemd-fsck-root.service local-fs-pre.target +Before=systemd-quotacheck.service shutdown.target + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootlibexecdir@/systemd-fsck %f +TimeoutSec=0 diff --git a/src/grp-initprogs/systemd-fsck/systemd-fsck@.service.xml b/src/grp-initprogs/systemd-fsck/systemd-fsck@.service.xml new file mode 100644 index 0000000000..933c3247ad --- /dev/null +++ b/src/grp-initprogs/systemd-fsck/systemd-fsck@.service.xml @@ -0,0 +1,139 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-fsck@.service"> + + <refentryinfo> + <title>systemd-fsck@.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-fsck@.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-fsck@.service</refname> + <refname>systemd-fsck-root.service</refname> + <refname>systemd-fsck</refname> + <refpurpose>File system checker logic</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-fsck@.service</filename></para> + <para><filename>systemd-fsck-root.service</filename></para> + <para><filename>/usr/lib/systemd/systemd-fsck</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-fsck@.service</filename> and + <filename>systemd-fsck-root.service</filename> are services + responsible for file system checks. They are instantiated for each + device that is configured for file system checking. + <filename>systemd-fsck-root.service</filename> is responsible for + file system checks on the root file system, but only if the + root filesystem was not checked in the initramfs. + <filename>systemd-fsck@.service</filename> is used for all other + file systems and for the root file system in the initramfs.</para> + + <para>These services are started at boot if + <option>passno</option> in <filename>/etc/fstab</filename> for the + file system is set to a value greater than zero. The file system + check for root is performed before the other file systems. Other + file systems may be checked in parallel, except when they are on + the same rotating disk.</para> + + <para><filename>systemd-fsck</filename> does not know any details + about specific filesystems, and simply executes file system + checkers specific to each filesystem type + (<filename>/sbin/fsck.*</filename>). This helper will decide if + the filesystem should actually be checked based on the time since + last check, number of mounts, unclean unmount, etc.</para> + + <para>If a file system check fails for a service without + <option>nofail</option>, emergency mode is activated, by isolating + to <filename>emergency.target</filename>.</para> + </refsect1> + + <refsect1> + <title>Kernel Command Line</title> + + <para><filename>systemd-fsck</filename> understands one kernel + command line parameter:</para> + + <variablelist class='kernel-commandline-options'> + <varlistentry> + <term><varname>fsck.mode=</varname></term> + + <listitem><para>One of <literal>auto</literal>, + <literal>force</literal>, <literal>skip</literal>. Controls + the mode of operation. The default is <literal>auto</literal>, + and ensures that file system checks are done when the file + system checker deems them necessary. <literal>force</literal> + unconditionally results in full file system checks. + <literal>skip</literal> skips any file system + checks.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>fsck.repair=</varname></term> + + <listitem><para>One of <literal>preen</literal>, + <literal>yes</literal>, <literal>no</literal>. Controls the + mode of operation. The default is <literal> preen</literal>, + and will automatically repair problems that can be safely + fixed. <literal>yes </literal> will answer yes to all + questions by fsck and <literal>no</literal> will answer no to + all questions. </para></listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>fsck</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-quotacheck.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>fsck.btrfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>fsck.cramfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>fsck.ext4</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>fsck.fat</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>fsck.hfsplus</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>fsck.minix</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>fsck.ntfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>fsck.xfs</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-modules-load/GNUmakefile b/src/grp-initprogs/systemd-modules-load/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-modules-load/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-modules-load/Makefile b/src/grp-initprogs/systemd-modules-load/Makefile new file mode 100644 index 0000000000..01ee557164 --- /dev/null +++ b/src/grp-initprogs/systemd-modules-load/Makefile @@ -0,0 +1,59 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(HAVE_KMOD),) +systemd_modules_load_SOURCES = \ + src/modules-load/modules-load.c + +systemd_modules_load_CFLAGS = \ + $(KMOD_CFLAGS) + +systemd_modules_load_LDADD = \ + libsystemd-shared.la \ + $(KMOD_LIBS) + +rootlibexec_PROGRAMS += \ + systemd-modules-load + +nodist_systemunit_DATA += \ + units/systemd-modules-load.service + +SYSINIT_TARGET_WANTS += \ + systemd-modules-load.service + +ifneq ($(ENABLE_TMPFILES),) +nodist_systemunit_DATA += \ + units/kmod-static-nodes.service + +SYSINIT_TARGET_WANTS += \ + kmod-static-nodes.service +endif # ENABLE_TMPFILES +endif # HAVE_KMOD + +EXTRA_DIST += \ + units/systemd-modules-load.service.in \ + units/kmod-static-nodes.service.in + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-modules-load/kmod-static-nodes.service.in b/src/grp-initprogs/systemd-modules-load/kmod-static-nodes.service.in new file mode 100644 index 0000000000..a9c8df1184 --- /dev/null +++ b/src/grp-initprogs/systemd-modules-load/kmod-static-nodes.service.in @@ -0,0 +1,18 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Create list of required static device nodes for the current kernel +DefaultDependencies=no +Before=sysinit.target systemd-tmpfiles-setup-dev.service +ConditionCapability=CAP_SYS_MODULE +ConditionFileNotEmpty=/lib/modules/%v/modules.devname + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@KMOD@ static-nodes --format=tmpfiles --output=/run/tmpfiles.d/kmod.conf diff --git a/src/grp-initprogs/systemd-modules-load/modules-load.c b/src/grp-initprogs/systemd-modules-load/modules-load.c new file mode 100644 index 0000000000..077561e2ba --- /dev/null +++ b/src/grp-initprogs/systemd-modules-load/modules-load.c @@ -0,0 +1,283 @@ +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <getopt.h> +#include <libkmod.h> +#include <limits.h> +#include <string.h> +#include <sys/stat.h> + +#include "systemd-basic/conf-files.h" +#include "systemd-basic/def.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/fileio.h" +#include "systemd-basic/log.h" +#include "systemd-basic/proc-cmdline.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/strv.h" +#include "systemd-basic/util.h" + +static char **arg_proc_cmdline_modules = NULL; + +static const char conf_file_dirs[] = CONF_PATHS_NULSTR("modules-load.d"); + +static void systemd_kmod_log(void *data, int priority, const char *file, int line, + const char *fn, const char *format, va_list args) { + + DISABLE_WARNING_FORMAT_NONLITERAL; + log_internalv(priority, 0, file, line, fn, format, args); + REENABLE_WARNING; +} + +static int add_modules(const char *p) { + _cleanup_strv_free_ char **k = NULL; + + k = strv_split(p, ","); + if (!k) + return log_oom(); + + if (strv_extend_strv(&arg_proc_cmdline_modules, k, true) < 0) + return log_oom(); + + return 0; +} + +static int parse_proc_cmdline_item(const char *key, const char *value, void *data) { + int r; + + if (streq(key, "modules-load") && value) { + r = add_modules(value); + if (r < 0) + return r; + } + + return 0; +} + +static int load_module(struct kmod_ctx *ctx, const char *m) { + const int probe_flags = KMOD_PROBE_APPLY_BLACKLIST; + struct kmod_list *itr, *modlist = NULL; + int r = 0; + + log_debug("load: %s", m); + + r = kmod_module_new_from_lookup(ctx, m, &modlist); + if (r < 0) + return log_error_errno(r, "Failed to lookup alias '%s': %m", m); + + if (!modlist) { + log_error("Failed to find module '%s'", m); + return -ENOENT; + } + + kmod_list_foreach(itr, modlist) { + struct kmod_module *mod; + int state, err; + + mod = kmod_module_get_module(itr); + state = kmod_module_get_initstate(mod); + + switch (state) { + case KMOD_MODULE_BUILTIN: + log_info("Module '%s' is builtin", kmod_module_get_name(mod)); + break; + + case KMOD_MODULE_LIVE: + log_debug("Module '%s' is already loaded", kmod_module_get_name(mod)); + break; + + default: + err = kmod_module_probe_insert_module(mod, probe_flags, + NULL, NULL, NULL, NULL); + + if (err == 0) + log_info("Inserted module '%s'", kmod_module_get_name(mod)); + else if (err == KMOD_PROBE_APPLY_BLACKLIST) + log_info("Module '%s' is blacklisted", kmod_module_get_name(mod)); + else { + log_error_errno(err, "Failed to insert '%s': %m", kmod_module_get_name(mod)); + r = err; + } + } + + kmod_module_unref(mod); + } + + kmod_module_unref_list(modlist); + + return r; +} + +static int apply_file(struct kmod_ctx *ctx, const char *path, bool ignore_enoent) { + _cleanup_fclose_ FILE *f = NULL; + int r; + + assert(ctx); + assert(path); + + r = search_and_fopen_nulstr(path, "re", NULL, conf_file_dirs, &f); + if (r < 0) { + if (ignore_enoent && r == -ENOENT) + return 0; + + return log_error_errno(r, "Failed to open %s, ignoring: %m", path); + } + + log_debug("apply: %s", path); + for (;;) { + char line[LINE_MAX], *l; + int k; + + if (!fgets(line, sizeof(line), f)) { + if (feof(f)) + break; + + return log_error_errno(errno, "Failed to read file '%s', ignoring: %m", path); + } + + l = strstrip(line); + if (!*l) + continue; + if (strchr(COMMENTS "\n", *l)) + continue; + + k = load_module(ctx, l); + if (k < 0 && r == 0) + r = k; + } + + return r; +} + +static void help(void) { + printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" + "Loads statically configured kernel modules.\n\n" + " -h --help Show this help\n" + " --version Show package version\n", + program_invocation_short_name); +} + +static int parse_argv(int argc, char *argv[]) { + + enum { + ARG_VERSION = 0x100, + }; + + static const struct option options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + {} + }; + + int c; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) + + switch (c) { + + case 'h': + help(); + return 0; + + case ARG_VERSION: + return version(); + + case '?': + return -EINVAL; + + default: + assert_not_reached("Unhandled option"); + } + + return 1; +} + +int main(int argc, char *argv[]) { + int r, k; + struct kmod_ctx *ctx; + + r = parse_argv(argc, argv); + if (r <= 0) + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + r = parse_proc_cmdline(parse_proc_cmdline_item, NULL, true); + if (r < 0) + log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m"); + + ctx = kmod_new(NULL, NULL); + if (!ctx) { + log_error("Failed to allocate memory for kmod."); + goto finish; + } + + kmod_load_resources(ctx); + kmod_set_log_fn(ctx, systemd_kmod_log, NULL); + + r = 0; + + if (argc > optind) { + int i; + + for (i = optind; i < argc; i++) { + k = apply_file(ctx, argv[i], false); + if (k < 0 && r == 0) + r = k; + } + + } else { + _cleanup_strv_free_ char **files = NULL; + char **fn, **i; + + STRV_FOREACH(i, arg_proc_cmdline_modules) { + k = load_module(ctx, *i); + if (k < 0 && r == 0) + r = k; + } + + k = conf_files_list_nulstr(&files, ".conf", NULL, conf_file_dirs); + if (k < 0) { + log_error_errno(k, "Failed to enumerate modules-load.d files: %m"); + if (r == 0) + r = k; + goto finish; + } + + STRV_FOREACH(fn, files) { + k = apply_file(ctx, *fn, true); + if (k < 0 && r == 0) + r = k; + } + } + +finish: + kmod_unref(ctx); + strv_free(arg_proc_cmdline_modules); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-modules-load/modules-load.d.xml b/src/grp-initprogs/systemd-modules-load/modules-load.d.xml new file mode 100644 index 0000000000..4b722aa128 --- /dev/null +++ b/src/grp-initprogs/systemd-modules-load/modules-load.d.xml @@ -0,0 +1,101 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2011 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="modules-load.d" conditional='HAVE_KMOD' + xmlns:xi="http://www.w3.org/2001/XInclude"> + + <refentryinfo> + <title>modules-load.d</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>modules-load.d</refentrytitle> + <manvolnum>5</manvolnum> + </refmeta> + + <refnamediv> + <refname>modules-load.d</refname> + <refpurpose>Configure kernel modules to load at boot</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>/etc/modules-load.d/*.conf</filename></para> + <para><filename>/run/modules-load.d/*.conf</filename></para> + <para><filename>/usr/lib/modules-load.d/*.conf</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><citerefentry><refentrytitle>systemd-modules-load.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> + reads files from the above directories which contain kernel + modules to load during boot in a static list. Each configuration + file is named in the style of + <filename>/etc/modules-load.d/<replaceable>program</replaceable>.conf</filename>. + Note that it is usually a better idea to rely on the automatic + module loading by PCI IDs, USB IDs, DMI IDs or similar triggers + encoded in the kernel modules themselves instead of static + configuration like this. In fact, most modern kernel modules are + prepared for automatic loading already.</para> + </refsect1> + + <refsect1> + <title>Configuration Format</title> + + <para>The configuration files should simply contain a list of + kernel module names to load, separated by newlines. Empty lines + and lines whose first non-whitespace character is # or ; are + ignored.</para> + </refsect1> + + <xi:include href="standard-conf.xml" xpointer="confd" /> + + <refsect1> + <title>Example</title> + <example> + <title>/etc/modules-load.d/virtio-net.conf example:</title> + + <programlisting># Load virtio-net.ko at boot +virtio-net</programlisting> + </example> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-modules-load.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-delta</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>modprobe</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-modules-load/systemd-modules-load.service.in b/src/grp-initprogs/systemd-modules-load/systemd-modules-load.service.in new file mode 100644 index 0000000000..9de6d31349 --- /dev/null +++ b/src/grp-initprogs/systemd-modules-load/systemd-modules-load.service.in @@ -0,0 +1,27 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Load Kernel Modules +Documentation=man:systemd-modules-load.service(8) man:modules-load.d(5) +DefaultDependencies=no +Conflicts=shutdown.target +Before=sysinit.target shutdown.target +ConditionCapability=CAP_SYS_MODULE +ConditionDirectoryNotEmpty=|/lib/modules-load.d +ConditionDirectoryNotEmpty=|/usr/lib/modules-load.d +ConditionDirectoryNotEmpty=|/usr/local/lib/modules-load.d +ConditionDirectoryNotEmpty=|/etc/modules-load.d +ConditionDirectoryNotEmpty=|/run/modules-load.d +ConditionKernelCommandLine=|modules-load +ConditionKernelCommandLine=|rd.modules-load + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootlibexecdir@/systemd-modules-load +TimeoutSec=90s diff --git a/src/grp-initprogs/systemd-modules-load/systemd-modules-load.service.xml b/src/grp-initprogs/systemd-modules-load/systemd-modules-load.service.xml new file mode 100644 index 0000000000..b25929b2e4 --- /dev/null +++ b/src/grp-initprogs/systemd-modules-load/systemd-modules-load.service.xml @@ -0,0 +1,96 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-modules-load.service" conditional='HAVE_KMOD'> + + <refentryinfo> + <title>systemd-modules-load.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-modules-load.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-modules-load.service</refname> + <refname>systemd-modules-load</refname> + <refpurpose>Load kernel modules at boot</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-modules-load.service</filename></para> + <para><filename>/usr/lib/systemd/systemd-modules-load</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-modules-load.service</filename> is an + early boot service that loads kernel modules based on static + configuration.</para> + + <para>See + <citerefentry><refentrytitle>modules-load.d</refentrytitle><manvolnum>5</manvolnum></citerefentry> + for information about the configuration of this service.</para> + + </refsect1> + + <refsect1> + <title>Kernel Command Line</title> + + <para><filename>systemd-modules-load.service</filename> + understands the following kernel command line parameters:</para> + + <variablelist class='kernel-commandline-options'> + + <varlistentry> + <term><varname>modules-load=</varname></term> + <term><varname>rd.modules-load=</varname></term> + + <listitem><para>Takes a comma-separated list of kernel modules + to statically load during early boot. The option prefixed with + <literal>rd.</literal> is read by the initial RAM disk + only.</para></listitem> + </varlistentry> + + </variablelist> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>modules-load.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-quotacheck/GNUmakefile b/src/grp-initprogs/systemd-quotacheck/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-quotacheck/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-quotacheck/Makefile b/src/grp-initprogs/systemd-quotacheck/Makefile new file mode 100644 index 0000000000..84c7204d38 --- /dev/null +++ b/src/grp-initprogs/systemd-quotacheck/Makefile @@ -0,0 +1,46 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_QUOTACHECK),) +rootlibexec_PROGRAMS += \ + systemd-quotacheck + +nodist_systemunit_DATA += \ + units/systemd-quotacheck.service + +systemd_quotacheck_SOURCES = \ + src/quotacheck/quotacheck.c + +systemd_quotacheck_LDADD = \ + libsystemd-shared.la +endif # ENABLE_QUOTACHECK + +EXTRA_DIST += \ + units/systemd-quotacheck.service.in + +nodist_systemunit_DATA += \ + units/quotaon.service + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-quotacheck/quotacheck.c b/src/grp-initprogs/systemd-quotacheck/quotacheck.c new file mode 100644 index 0000000000..7687354ad6 --- /dev/null +++ b/src/grp-initprogs/systemd-quotacheck/quotacheck.c @@ -0,0 +1,124 @@ +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <stdbool.h> +#include <stdio.h> +#include <sys/prctl.h> +#include <unistd.h> + +#include "systemd-basic/proc-cmdline.h" +#include "systemd-basic/process-util.h" +#include "systemd-basic/signal-util.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/util.h" + +static bool arg_skip = false; +static bool arg_force = false; + +static int parse_proc_cmdline_item(const char *key, const char *value, void *data) { + + if (streq(key, "quotacheck.mode") && value) { + + if (streq(value, "auto")) + arg_force = arg_skip = false; + else if (streq(value, "force")) + arg_force = true; + else if (streq(value, "skip")) + arg_skip = true; + else + log_warning("Invalid quotacheck.mode= parameter '%s'. Ignoring.", value); + } + +#ifdef HAVE_SYSV_COMPAT + else if (streq(key, "forcequotacheck") && !value) { + log_warning("Please use 'quotacheck.mode=force' rather than 'forcequotacheck' on the kernel command line."); + arg_force = true; + } +#endif + + return 0; +} + +static void test_files(void) { + +#ifdef HAVE_SYSV_COMPAT + if (access("/forcequotacheck", F_OK) >= 0) { + log_error("Please pass 'quotacheck.mode=force' on the kernel command line rather than creating /forcequotacheck on the root file system."); + arg_force = true; + } +#endif +} + +int main(int argc, char *argv[]) { + + static const char * const cmdline[] = { + QUOTACHECK, + "-anug", + NULL + }; + + pid_t pid; + int r; + + if (argc > 1) { + log_error("This program takes no arguments."); + return EXIT_FAILURE; + } + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + r = parse_proc_cmdline(parse_proc_cmdline_item, NULL, false); + if (r < 0) + log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m"); + + test_files(); + + if (!arg_force) { + if (arg_skip) + return EXIT_SUCCESS; + + if (access("/run/systemd/quotacheck", F_OK) < 0) + return EXIT_SUCCESS; + } + + pid = fork(); + if (pid < 0) { + log_error_errno(errno, "fork(): %m"); + return EXIT_FAILURE; + } else if (pid == 0) { + + /* Child */ + + (void) reset_all_signal_handlers(); + (void) reset_signal_mask(); + assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0); + + execv(cmdline[0], (char**) cmdline); + _exit(1); /* Operational error */ + } + + r = wait_for_terminate_and_warn("quotacheck", pid, true); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-quotacheck/quotaon.service.in b/src/grp-initprogs/systemd-quotacheck/quotaon.service.in new file mode 100644 index 0000000000..7d59a40195 --- /dev/null +++ b/src/grp-initprogs/systemd-quotacheck/quotaon.service.in @@ -0,0 +1,19 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Enable File System Quotas +Documentation=man:quotaon(8) +DefaultDependencies=no +After=systemd-quotacheck.service +Before=local-fs.target shutdown.target +ConditionPathExists=@QUOTAON@ + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@QUOTAON@ -aug diff --git a/src/grp-initprogs/systemd-quotacheck/systemd-quotacheck.service.in b/src/grp-initprogs/systemd-quotacheck/systemd-quotacheck.service.in new file mode 100644 index 0000000000..5cb9bc3bc9 --- /dev/null +++ b/src/grp-initprogs/systemd-quotacheck/systemd-quotacheck.service.in @@ -0,0 +1,20 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=File System Quota Check +Documentation=man:systemd-quotacheck.service(8) +DefaultDependencies=no +After=systemd-remount-fs.service +Before=local-fs.target shutdown.target +ConditionPathExists=@QUOTACHECK@ + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootlibexecdir@/systemd-quotacheck +TimeoutSec=0 diff --git a/src/grp-initprogs/systemd-quotacheck/systemd-quotacheck.service.xml b/src/grp-initprogs/systemd-quotacheck/systemd-quotacheck.service.xml new file mode 100644 index 0000000000..9d4976274e --- /dev/null +++ b/src/grp-initprogs/systemd-quotacheck/systemd-quotacheck.service.xml @@ -0,0 +1,94 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-quotacheck.service" conditional='ENABLE_QUOTACHECK'> + + <refentryinfo> + <title>systemd-quotacheck.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-quotacheck.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-quotacheck.service</refname> + <refname>systemd-quotacheck</refname> + <refpurpose>File system quota checker logic</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-quotacheck.service</filename></para> + <para><filename>/usr/lib/systemd/systemd-quotacheck</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-quotacheck.service</filename> is a service + responsible for file system quota checks. It is run once at boot + after all necessary file systems are mounted. It is pulled in only + if at least one file system has quotas enabled.</para> + </refsect1> + + <refsect1> + <title>Kernel Command Line</title> + + <para><filename>systemd-quotacheck</filename> understands one + kernel command line parameter:</para> + + <variablelist class='kernel-commandline-options'> + <varlistentry> + <term><varname>quotacheck.mode=</varname></term> + + <listitem><para>One of <literal>auto</literal>, + <literal>force</literal>, <literal>skip</literal>. Controls + the mode of operation. The default is <literal>auto</literal>, + and ensures that file system quota checks are done when the + file system quota checker deems them necessary. + <literal>force</literal> unconditionally results in full file + system quota checks. <literal>skip</literal> skips any file + system quota checks.</para></listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='die-net'><refentrytitle>quotacheck</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-fsck@.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-random-seed/GNUmakefile b/src/grp-initprogs/systemd-random-seed/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-random-seed/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-random-seed/Makefile b/src/grp-initprogs/systemd-random-seed/Makefile new file mode 100644 index 0000000000..8d8fce955c --- /dev/null +++ b/src/grp-initprogs/systemd-random-seed/Makefile @@ -0,0 +1,47 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_RANDOMSEED),) +rootlibexec_PROGRAMS += \ + systemd-random-seed + +nodist_systemunit_DATA += \ + units/systemd-random-seed.service + +systemd_random_seed_SOURCES = \ + src/random-seed/random-seed.c + +systemd_random_seed_LDADD = \ + libsystemd-shared.la + +SYSINIT_TARGET_WANTS += \ + systemd-random-seed.service + +endif # ENABLE_RANDOMSEED + +EXTRA_DIST += \ + units/systemd-random-seed.service.in + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-random-seed/random-seed.c b/src/grp-initprogs/systemd-random-seed/random-seed.c new file mode 100644 index 0000000000..83415ffb4c --- /dev/null +++ b/src/grp-initprogs/systemd-random-seed/random-seed.c @@ -0,0 +1,176 @@ +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <fcntl.h> +#include <string.h> +#include <sys/stat.h> +#include <unistd.h> + +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/io-util.h" +#include "systemd-basic/log.h" +#include "systemd-basic/mkdir.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/util.h" + +#define POOL_SIZE_MIN 512 + +int main(int argc, char *argv[]) { + _cleanup_close_ int seed_fd = -1, random_fd = -1; + _cleanup_free_ void* buf = NULL; + size_t buf_size = 0; + ssize_t k; + int r, open_rw_error; + FILE *f; + bool refresh_seed_file = true; + + if (argc != 2) { + log_error("This program requires one argument."); + return EXIT_FAILURE; + } + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + /* Read pool size, if possible */ + f = fopen("/proc/sys/kernel/random/poolsize", "re"); + if (f) { + if (fscanf(f, "%zu", &buf_size) > 0) + /* poolsize is in bits on 2.6, but we want bytes */ + buf_size /= 8; + + fclose(f); + } + + if (buf_size <= POOL_SIZE_MIN) + buf_size = POOL_SIZE_MIN; + + buf = malloc(buf_size); + if (!buf) { + r = log_oom(); + goto finish; + } + + r = mkdir_parents_label(RANDOM_SEED, 0755); + if (r < 0) { + log_error_errno(r, "Failed to create directory " RANDOM_SEED_DIR ": %m"); + goto finish; + } + + /* When we load the seed we read it and write it to the device + * and then immediately update the saved seed with new data, + * to make sure the next boot gets seeded differently. */ + + if (streq(argv[1], "load")) { + + seed_fd = open(RANDOM_SEED, O_RDWR|O_CLOEXEC|O_NOCTTY|O_CREAT, 0600); + open_rw_error = -errno; + if (seed_fd < 0) { + refresh_seed_file = false; + + seed_fd = open(RANDOM_SEED, O_RDONLY|O_CLOEXEC|O_NOCTTY); + if (seed_fd < 0) { + bool missing = errno == ENOENT; + + log_full_errno(missing ? LOG_DEBUG : LOG_ERR, + open_rw_error, "Failed to open " RANDOM_SEED " for writing: %m"); + r = log_full_errno(missing ? LOG_DEBUG : LOG_ERR, + errno, "Failed to open " RANDOM_SEED " for reading: %m"); + if (missing) + r = 0; + + goto finish; + } + } + + random_fd = open("/dev/urandom", O_RDWR|O_CLOEXEC|O_NOCTTY, 0600); + if (random_fd < 0) { + random_fd = open("/dev/urandom", O_WRONLY|O_CLOEXEC|O_NOCTTY, 0600); + if (random_fd < 0) { + r = log_error_errno(errno, "Failed to open /dev/urandom: %m"); + goto finish; + } + } + + k = loop_read(seed_fd, buf, buf_size, false); + if (k < 0) + r = log_error_errno(k, "Failed to read seed from " RANDOM_SEED ": %m"); + else if (k == 0) { + r = 0; + log_debug("Seed file " RANDOM_SEED " not yet initialized, proceeding."); + } else { + (void) lseek(seed_fd, 0, SEEK_SET); + + r = loop_write(random_fd, buf, (size_t) k, false); + if (r < 0) + log_error_errno(r, "Failed to write seed to /dev/urandom: %m"); + } + + } else if (streq(argv[1], "save")) { + + seed_fd = open(RANDOM_SEED, O_WRONLY|O_CLOEXEC|O_NOCTTY|O_CREAT, 0600); + if (seed_fd < 0) { + r = log_error_errno(errno, "Failed to open " RANDOM_SEED ": %m"); + goto finish; + } + + random_fd = open("/dev/urandom", O_RDONLY|O_CLOEXEC|O_NOCTTY); + if (random_fd < 0) { + r = log_error_errno(errno, "Failed to open /dev/urandom: %m"); + goto finish; + } + + } else { + log_error("Unknown verb '%s'.", argv[1]); + r = -EINVAL; + goto finish; + } + + if (refresh_seed_file) { + + /* This is just a safety measure. Given that we are root and + * most likely created the file ourselves the mode and owner + * should be correct anyway. */ + (void) fchmod(seed_fd, 0600); + (void) fchown(seed_fd, 0, 0); + + k = loop_read(random_fd, buf, buf_size, false); + if (k < 0) { + r = log_error_errno(k, "Failed to read new seed from /dev/urandom: %m"); + goto finish; + } + if (k == 0) { + log_error("Got EOF while reading from /dev/urandom."); + r = -EIO; + goto finish; + } + + r = loop_write(seed_fd, buf, (size_t) k, false); + if (r < 0) + log_error_errno(r, "Failed to write new random seed file: %m"); + } + +finish: + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-random-seed/systemd-random-seed.service.in b/src/grp-initprogs/systemd-random-seed/systemd-random-seed.service.in new file mode 100644 index 0000000000..b244a8ce43 --- /dev/null +++ b/src/grp-initprogs/systemd-random-seed/systemd-random-seed.service.in @@ -0,0 +1,23 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Load/Save Random Seed +Documentation=man:systemd-random-seed.service(8) man:random(4) +DefaultDependencies=no +RequiresMountsFor=@RANDOM_SEED@ +Conflicts=shutdown.target +After=systemd-remount-fs.service +Before=sysinit.target shutdown.target +ConditionVirtualization=!container + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootlibexecdir@/systemd-random-seed load +ExecStop=@rootlibexecdir@/systemd-random-seed save +TimeoutSec=30s diff --git a/src/grp-initprogs/systemd-random-seed/systemd-random-seed.service.xml b/src/grp-initprogs/systemd-random-seed/systemd-random-seed.service.xml new file mode 100644 index 0000000000..f3b5a947da --- /dev/null +++ b/src/grp-initprogs/systemd-random-seed/systemd-random-seed.service.xml @@ -0,0 +1,75 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-random-seed.service" conditional='ENABLE_RANDOMSEED'> + + <refentryinfo> + <title>systemd-random-seed.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-random-seed.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-random-seed.service</refname> + <refname>systemd-random-seed</refname> + <refpurpose>Load and save the system random seed at boot and shutdown</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-random-seed.service</filename></para> + <para><filename>/usr/lib/systemd/systemd-random-seed</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-random-seed.service</filename> is a + service that restores the random seed of the system at early boot + and saves it at shutdown. See + <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry> + for details. Saving/restoring the random seed across boots + increases the amount of available entropy early at boot. On disk + the random seed is stored in + <filename>/var/lib/systemd/random-seed</filename>.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-rfkill/GNUmakefile b/src/grp-initprogs/systemd-rfkill/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-rfkill/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-rfkill/Makefile b/src/grp-initprogs/systemd-rfkill/Makefile new file mode 100644 index 0000000000..32fb516b52 --- /dev/null +++ b/src/grp-initprogs/systemd-rfkill/Makefile @@ -0,0 +1,46 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_RFKILL),) +rootlibexec_PROGRAMS += \ + systemd-rfkill + +nodist_systemunit_DATA += \ + units/systemd-rfkill.service + +dist_systemunit_DATA += \ + units/systemd-rfkill.socket + +systemd_rfkill_SOURCES = \ + src/rfkill/rfkill.c + +systemd_rfkill_LDADD = \ + libsystemd-shared.la +endif # ENABLE_RFKILL + +EXTRA_DIST += \ + units/systemd-rfkill.service.in + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-rfkill/rfkill.c b/src/grp-initprogs/systemd-rfkill/rfkill.c new file mode 100644 index 0000000000..6a463d0f92 --- /dev/null +++ b/src/grp-initprogs/systemd-rfkill/rfkill.c @@ -0,0 +1,427 @@ +/*** + This file is part of systemd. + + Copyright 2013 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <poll.h> + +#include <linux/rfkill.h> + +#include <libudev.h> +#include <systemd/sd-daemon.h> + +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/escape.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/fileio.h" +#include "systemd-basic/io-util.h" +#include "systemd-basic/mkdir.h" +#include "systemd-basic/parse-util.h" +#include "systemd-basic/proc-cmdline.h" +#include "systemd-basic/string-table.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/util.h" +#include "systemd-shared/udev-util.h" + +#define EXIT_USEC (5 * USEC_PER_SEC) + +static const char* const rfkill_type_table[NUM_RFKILL_TYPES] = { + [RFKILL_TYPE_ALL] = "all", + [RFKILL_TYPE_WLAN] = "wlan", + [RFKILL_TYPE_BLUETOOTH] = "bluetooth", + [RFKILL_TYPE_UWB] = "uwb", + [RFKILL_TYPE_WIMAX] = "wimax", + [RFKILL_TYPE_WWAN] = "wwan", + [RFKILL_TYPE_GPS] = "gps", + [RFKILL_TYPE_FM] = "fm", + [RFKILL_TYPE_NFC] = "nfc", +}; + +DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(rfkill_type, int); + +static int find_device( + struct udev *udev, + const struct rfkill_event *event, + struct udev_device **ret) { + + _cleanup_free_ char *sysname = NULL; + struct udev_device *device; + const char *name; + + assert(udev); + assert(event); + assert(ret); + + if (asprintf(&sysname, "rfkill%i", event->idx) < 0) + return log_oom(); + + device = udev_device_new_from_subsystem_sysname(udev, "rfkill", sysname); + if (!device) + return log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR, errno, "Failed to open device: %m"); + + name = udev_device_get_sysattr_value(device, "name"); + if (!name) { + log_debug("Device has no name, ignoring."); + udev_device_unref(device); + return -ENOENT; + } + + log_debug("Operating on rfkill device '%s'.", name); + + *ret = device; + return 0; +} + +static int wait_for_initialized( + struct udev *udev, + struct udev_device *device, + struct udev_device **ret) { + + _cleanup_udev_monitor_unref_ struct udev_monitor *monitor = NULL; + struct udev_device *d; + const char *sysname; + int watch_fd, r; + + assert(udev); + assert(device); + assert(ret); + + if (udev_device_get_is_initialized(device) != 0) { + *ret = udev_device_ref(device); + return 0; + } + + assert_se(sysname = udev_device_get_sysname(device)); + + /* Wait until the device is initialized, so that we can get + * access to the ID_PATH property */ + + monitor = udev_monitor_new_from_netlink(udev, "udev"); + if (!monitor) + return log_error_errno(errno, "Failed to acquire monitor: %m"); + + r = udev_monitor_filter_add_match_subsystem_devtype(monitor, "rfkill", NULL); + if (r < 0) + return log_error_errno(r, "Failed to add rfkill udev match to monitor: %m"); + + r = udev_monitor_enable_receiving(monitor); + if (r < 0) + return log_error_errno(r, "Failed to enable udev receiving: %m"); + + watch_fd = udev_monitor_get_fd(monitor); + if (watch_fd < 0) + return log_error_errno(watch_fd, "Failed to get watch fd: %m"); + + /* Check again, maybe things changed */ + d = udev_device_new_from_subsystem_sysname(udev, "rfkill", sysname); + if (!d) + return log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR, errno, "Failed to open device: %m"); + + if (udev_device_get_is_initialized(d) != 0) { + *ret = d; + return 0; + } + + for (;;) { + _cleanup_udev_device_unref_ struct udev_device *t = NULL; + + r = fd_wait_for_event(watch_fd, POLLIN, USEC_INFINITY); + if (r == -EINTR) + continue; + if (r < 0) + return log_error_errno(r, "Failed to watch udev monitor: %m"); + + t = udev_monitor_receive_device(monitor); + if (!t) + continue; + + if (streq_ptr(udev_device_get_sysname(device), sysname)) { + *ret = udev_device_ref(t); + return 0; + } + } +} + +static int determine_state_file( + struct udev *udev, + const struct rfkill_event *event, + struct udev_device *d, + char **ret) { + + _cleanup_udev_device_unref_ struct udev_device *device = NULL; + const char *path_id, *type; + char *state_file; + int r; + + assert(event); + assert(d); + assert(ret); + + r = wait_for_initialized(udev, d, &device); + if (r < 0) + return r; + + assert_se(type = rfkill_type_to_string(event->type)); + + path_id = udev_device_get_property_value(device, "ID_PATH"); + if (path_id) { + _cleanup_free_ char *escaped_path_id = NULL; + + escaped_path_id = cescape(path_id); + if (!escaped_path_id) + return log_oom(); + + state_file = strjoin("/var/lib/systemd/rfkill/", escaped_path_id, ":", type, NULL); + } else + state_file = strjoin("/var/lib/systemd/rfkill/", type, NULL); + + if (!state_file) + return log_oom(); + + *ret = state_file; + return 0; +} + +static int load_state( + int rfkill_fd, + struct udev *udev, + const struct rfkill_event *event) { + + _cleanup_udev_device_unref_ struct udev_device *device = NULL; + _cleanup_free_ char *state_file = NULL, *value = NULL; + struct rfkill_event we; + ssize_t l; + int b, r; + + assert(rfkill_fd >= 0); + assert(udev); + assert(event); + + if (shall_restore_state() == 0) + return 0; + + r = find_device(udev, event, &device); + if (r < 0) + return r; + + r = determine_state_file(udev, event, device, &state_file); + if (r < 0) + return r; + + r = read_one_line_file(state_file, &value); + if (r == -ENOENT) { + /* No state file? Then save the current state */ + + r = write_string_file(state_file, one_zero(event->soft), WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_ATOMIC); + if (r < 0) + return log_error_errno(r, "Failed to write state file %s: %m", state_file); + + log_debug("Saved state '%s' to %s.", one_zero(event->soft), state_file); + return 0; + } + if (r < 0) + return log_error_errno(r, "Failed to read state file %s: %m", state_file); + + b = parse_boolean(value); + if (b < 0) + return log_error_errno(b, "Failed to parse state file %s: %m", state_file); + + we = (struct rfkill_event) { + .op = RFKILL_OP_CHANGE, + .idx = event->idx, + .soft = b, + }; + + l = write(rfkill_fd, &we, sizeof(we)); + if (l < 0) + return log_error_errno(errno, "Failed to restore rfkill state for %i: %m", event->idx); + if (l != sizeof(we)) { + log_error("Couldn't write rfkill event structure, too short."); + return -EIO; + } + + log_debug("Loaded state '%s' from %s.", one_zero(b), state_file); + return 0; +} + +static int save_state( + int rfkill_fd, + struct udev *udev, + const struct rfkill_event *event) { + + _cleanup_udev_device_unref_ struct udev_device *device = NULL; + _cleanup_free_ char *state_file = NULL; + int r; + + assert(rfkill_fd >= 0); + assert(udev); + assert(event); + + r = find_device(udev, event, &device); + if (r < 0) + return r; + + r = determine_state_file(udev, event, device, &state_file); + if (r < 0) + return r; + + r = write_string_file(state_file, one_zero(event->soft), WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_ATOMIC); + if (r < 0) + return log_error_errno(r, "Failed to write state file %s: %m", state_file); + + log_debug("Saved state '%s' to %s.", one_zero(event->soft), state_file); + return 0; +} + +int main(int argc, char *argv[]) { + _cleanup_udev_unref_ struct udev *udev = NULL; + _cleanup_close_ int rfkill_fd = -1; + bool ready = false; + int r, n; + + if (argc > 1) { + log_error("This program requires no arguments."); + return EXIT_FAILURE; + } + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + udev = udev_new(); + if (!udev) { + r = log_oom(); + goto finish; + } + + r = mkdir_p("/var/lib/systemd/rfkill", 0755); + if (r < 0) { + log_error_errno(r, "Failed to create rfkill directory: %m"); + goto finish; + } + + n = sd_listen_fds(false); + if (n < 0) { + r = log_error_errno(n, "Failed to determine whether we got any file descriptors passed: %m"); + goto finish; + } + if (n > 1) { + log_error("Got too many file descriptors."); + r = -EINVAL; + goto finish; + } + + if (n == 0) { + rfkill_fd = open("/dev/rfkill", O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK); + if (rfkill_fd < 0) { + if (errno == ENOENT) { + log_debug_errno(errno, "Missing rfkill subsystem, or no device present, exiting."); + r = 0; + goto finish; + } + + r = log_error_errno(errno, "Failed to open /dev/rfkill: %m"); + goto finish; + } + } else { + rfkill_fd = SD_LISTEN_FDS_START; + + r = fd_nonblock(rfkill_fd, 1); + if (r < 0) { + log_error_errno(r, "Failed to make /dev/rfkill socket non-blocking: %m"); + goto finish; + } + } + + for (;;) { + struct rfkill_event event; + const char *type; + ssize_t l; + + l = read(rfkill_fd, &event, sizeof(event)); + if (l < 0) { + if (errno == EAGAIN) { + + if (!ready) { + /* Notify manager that we are + * now finished with + * processing whatever was + * queued */ + (void) sd_notify(false, "READY=1"); + ready = true; + } + + /* Hang around for a bit, maybe there's more coming */ + + r = fd_wait_for_event(rfkill_fd, POLLIN, EXIT_USEC); + if (r == -EINTR) + continue; + if (r < 0) { + log_error_errno(r, "Failed to poll() on device: %m"); + goto finish; + } + if (r > 0) + continue; + + log_debug("All events read and idle, exiting."); + break; + } + + log_error_errno(errno, "Failed to read from /dev/rfkill: %m"); + } + + if (l != RFKILL_EVENT_SIZE_V1) { + log_error("Read event structure of invalid size."); + r = -EIO; + goto finish; + } + + type = rfkill_type_to_string(event.type); + if (!type) { + log_debug("An rfkill device of unknown type %i discovered, ignoring.", event.type); + continue; + } + + switch (event.op) { + + case RFKILL_OP_ADD: + log_debug("A new rfkill device has been added with index %i and type %s.", event.idx, type); + (void) load_state(rfkill_fd, udev, &event); + break; + + case RFKILL_OP_DEL: + log_debug("An rfkill device has been removed with index %i and type %s", event.idx, type); + break; + + case RFKILL_OP_CHANGE: + log_debug("An rfkill device has changed state with index %i and type %s", event.idx, type); + (void) save_state(rfkill_fd, udev, &event); + break; + + default: + log_debug("Unknown event %i from /dev/rfkill for index %i and type %s, ignoring.", event.op, event.idx, type); + break; + } + } + + r = 0; + +finish: + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-rfkill/systemd-rfkill.service.in b/src/grp-initprogs/systemd-rfkill/systemd-rfkill.service.in new file mode 100644 index 0000000000..780a19b996 --- /dev/null +++ b/src/grp-initprogs/systemd-rfkill/systemd-rfkill.service.in @@ -0,0 +1,21 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Load/Save RF Kill Switch Status +Documentation=man:systemd-rfkill.service(8) +DefaultDependencies=no +RequiresMountsFor=/var/lib/systemd/rfkill +BindsTo=sys-devices-virtual-misc-rfkill.device +Conflicts=shutdown.target +After=sys-devices-virtual-misc-rfkill.device systemd-remount-fs.service +Before=shutdown.target + +[Service] +Type=notify +ExecStart=@rootlibexecdir@/systemd-rfkill +TimeoutSec=30s diff --git a/src/grp-initprogs/systemd-rfkill/systemd-rfkill.service.xml b/src/grp-initprogs/systemd-rfkill/systemd-rfkill.service.xml new file mode 100644 index 0000000000..f464842700 --- /dev/null +++ b/src/grp-initprogs/systemd-rfkill/systemd-rfkill.service.xml @@ -0,0 +1,90 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2013 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-rfkill.service" conditional='ENABLE_RFKILL'> + + <refentryinfo> + <title>systemd-rfkill.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-rfkill.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-rfkill.service</refname> + <refname>systemd-rfkill.socket</refname> + <refname>systemd-rfkill</refname> + <refpurpose>Load and save the RF kill switch state at boot and change</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-rfkill.service</filename></para> + <para><filename>systemd-rfkill.socket</filename></para> + <para><filename>/usr/lib/systemd/systemd-rfkill</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-rfkill.service</filename> is a service + that restores the RF kill switch state at early boot and saves it + on each change. On disk, the RF kill switch state is stored in + <filename>/var/lib/systemd/rfkill/</filename>.</para> + </refsect1> + + <refsect1> + <title>Kernel Command Line</title> + + <para><filename>systemd-rfkill</filename> understands the + following kernel command line parameter:</para> + + <variablelist class='kernel-commandline-options'> + <varlistentry> + <term><varname>systemd.restore_state=</varname></term> + + <listitem><para>Takes a boolean argument. Defaults to + <literal>1</literal>. If <literal>0</literal>, does not + restore the rfkill settings on boot. However, settings will + still be stored on shutdown. </para></listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-rfkill/systemd-rfkill.socket b/src/grp-initprogs/systemd-rfkill/systemd-rfkill.socket new file mode 100644 index 0000000000..20ae2f8adb --- /dev/null +++ b/src/grp-initprogs/systemd-rfkill/systemd-rfkill.socket @@ -0,0 +1,19 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Load/Save RF Kill Switch Status /dev/rfkill Watch +Documentation=man:systemd-rfkill.socket(8) +DefaultDependencies=no +BindsTo=sys-devices-virtual-misc-rfkill.device +After=sys-devices-virtual-misc-rfkill.device +Conflicts=shutdown.target +Before=shutdown.target + +[Socket] +ListenSpecial=/dev/rfkill +Writable=yes diff --git a/src/grp-initprogs/systemd-sysctl/50-default.sysctl b/src/grp-initprogs/systemd-sysctl/50-default.sysctl new file mode 100644 index 0000000000..f08f32e849 --- /dev/null +++ b/src/grp-initprogs/systemd-sysctl/50-default.sysctl @@ -0,0 +1,40 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +# See sysctl.d(5) and core(5) for documentation. + +# To override settings in this file, create a local file in /etc +# (e.g. /etc/sysctl.d/90-override.conf), and put any assignments +# there. + +# System Request functionality of the kernel (SYNC) +# +# Use kernel.sysrq = 1 to allow all keys. +# See http://fedoraproject.org/wiki/QA/Sysrq for a list of values and keys. +kernel.sysrq = 16 + +# Append the PID to the core filename +kernel.core_uses_pid = 1 + +# Source route verification +net.ipv4.conf.default.rp_filter = 1 +net.ipv4.conf.all.rp_filter = 1 + +# Do not accept source routing +net.ipv4.conf.default.accept_source_route = 0 +net.ipv4.conf.all.accept_source_route = 0 + +# Promote secondary addresses when the primary address is removed +net.ipv4.conf.default.promote_secondaries = 1 +net.ipv4.conf.all.promote_secondaries = 1 + +# Fair Queue CoDel packet scheduler to fight bufferbloat +net.core.default_qdisc = fq_codel + +# Enable hard and soft link protection +fs.protected_hardlinks = 1 +fs.protected_symlinks = 1 diff --git a/src/grp-initprogs/systemd-sysctl/GNUmakefile b/src/grp-initprogs/systemd-sysctl/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-sysctl/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-sysctl/Makefile b/src/grp-initprogs/systemd-sysctl/Makefile new file mode 100644 index 0000000000..3fe12fd460 --- /dev/null +++ b/src/grp-initprogs/systemd-sysctl/Makefile @@ -0,0 +1,33 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +rootlibexec_PROGRAMS += systemd-sysctl +systemd_sysctl_SOURCES = \ + src/sysctl/sysctl.c + +systemd_sysctl_LDADD = \ + libsystemd-shared.la + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-sysctl/sysctl.c b/src/grp-initprogs/systemd-sysctl/sysctl.c new file mode 100644 index 0000000000..de047890f6 --- /dev/null +++ b/src/grp-initprogs/systemd-sysctl/sysctl.c @@ -0,0 +1,305 @@ +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <getopt.h> +#include <limits.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "systemd-basic/conf-files.h" +#include "systemd-basic/def.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/fileio.h" +#include "systemd-basic/hashmap.h" +#include "systemd-basic/log.h" +#include "systemd-basic/path-util.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/strv.h" +#include "systemd-basic/util.h" +#include "systemd-shared/sysctl-util.h" + +static char **arg_prefixes = NULL; + +static const char conf_file_dirs[] = CONF_PATHS_NULSTR("sysctl.d"); + +static int apply_all(OrderedHashmap *sysctl_options) { + char *property, *value; + Iterator i; + int r = 0; + + ORDERED_HASHMAP_FOREACH_KEY(value, property, sysctl_options, i) { + int k; + + k = sysctl_write(property, value); + if (k < 0) { + /* If the sysctl is not available in the kernel or we are running with reduced privileges and + * cannot write it, then log about the issue at LOG_NOTICE level, and proceed without + * failing. (EROFS is treated as a permission problem here, since that's how container managers + * usually protected their sysctls.) In all other cases log an error and make the tool fail. */ + + if (IN_SET(k, -EPERM, -EACCES, -EROFS, -ENOENT)) + log_notice_errno(k, "Couldn't write '%s' to '%s', ignoring: %m", value, property); + else { + log_error_errno(k, "Couldn't write '%s' to '%s': %m", value, property); + if (r == 0) + r = k; + } + } + } + + return r; +} + +static bool test_prefix(const char *p) { + char **i; + + if (strv_isempty(arg_prefixes)) + return true; + + STRV_FOREACH(i, arg_prefixes) { + const char *t; + + t = path_startswith(*i, "/proc/sys/"); + if (!t) + t = *i; + if (path_startswith(p, t)) + return true; + } + + return false; +} + +static int parse_file(OrderedHashmap *sysctl_options, const char *path, bool ignore_enoent) { + _cleanup_fclose_ FILE *f = NULL; + unsigned c = 0; + int r; + + assert(path); + + r = search_and_fopen_nulstr(path, "re", NULL, conf_file_dirs, &f); + if (r < 0) { + if (ignore_enoent && r == -ENOENT) + return 0; + + return log_error_errno(r, "Failed to open file '%s', ignoring: %m", path); + } + + log_debug("Parsing %s", path); + for (;;) { + char l[LINE_MAX], *p, *value, *new_value, *property, *existing; + void *v; + int k; + + if (!fgets(l, sizeof(l), f)) { + if (feof(f)) + break; + + return log_error_errno(errno, "Failed to read file '%s', ignoring: %m", path); + } + + c++; + + p = strstrip(l); + if (!*p) + continue; + + if (strchr(COMMENTS "\n", *p)) + continue; + + value = strchr(p, '='); + if (!value) { + log_error("Line is not an assignment at '%s:%u': %s", path, c, value); + + if (r == 0) + r = -EINVAL; + continue; + } + + *value = 0; + value++; + + p = sysctl_normalize(strstrip(p)); + value = strstrip(value); + + if (!test_prefix(p)) + continue; + + existing = ordered_hashmap_get2(sysctl_options, p, &v); + if (existing) { + if (streq(value, existing)) + continue; + + log_debug("Overwriting earlier assignment of %s at '%s:%u'.", p, path, c); + free(ordered_hashmap_remove(sysctl_options, p)); + free(v); + } + + property = strdup(p); + if (!property) + return log_oom(); + + new_value = strdup(value); + if (!new_value) { + free(property); + return log_oom(); + } + + k = ordered_hashmap_put(sysctl_options, property, new_value); + if (k < 0) { + log_error_errno(k, "Failed to add sysctl variable %s to hashmap: %m", property); + free(property); + free(new_value); + return k; + } + } + + return r; +} + +static void help(void) { + printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" + "Applies kernel sysctl settings.\n\n" + " -h --help Show this help\n" + " --version Show package version\n" + " --prefix=PATH Only apply rules with the specified prefix\n" + , program_invocation_short_name); +} + +static int parse_argv(int argc, char *argv[]) { + + enum { + ARG_VERSION = 0x100, + ARG_PREFIX + }; + + static const struct option options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + { "prefix", required_argument, NULL, ARG_PREFIX }, + {} + }; + + int c; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) + + switch (c) { + + case 'h': + help(); + return 0; + + case ARG_VERSION: + return version(); + + case ARG_PREFIX: { + char *p; + + /* We used to require people to specify absolute paths + * in /proc/sys in the past. This is kinda useless, but + * we need to keep compatibility. We now support any + * sysctl name available. */ + sysctl_normalize(optarg); + + if (startswith(optarg, "/proc/sys")) + p = strdup(optarg); + else + p = strappend("/proc/sys/", optarg); + if (!p) + return log_oom(); + + if (strv_consume(&arg_prefixes, p) < 0) + return log_oom(); + + break; + } + + case '?': + return -EINVAL; + + default: + assert_not_reached("Unhandled option"); + } + + return 1; +} + +int main(int argc, char *argv[]) { + OrderedHashmap *sysctl_options = NULL; + int r = 0, k; + + r = parse_argv(argc, argv); + if (r <= 0) + goto finish; + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + sysctl_options = ordered_hashmap_new(&string_hash_ops); + if (!sysctl_options) { + r = log_oom(); + goto finish; + } + + r = 0; + + if (argc > optind) { + int i; + + for (i = optind; i < argc; i++) { + k = parse_file(sysctl_options, argv[i], false); + if (k < 0 && r == 0) + r = k; + } + } else { + _cleanup_strv_free_ char **files = NULL; + char **f; + + r = conf_files_list_nulstr(&files, ".conf", NULL, conf_file_dirs); + if (r < 0) { + log_error_errno(r, "Failed to enumerate sysctl.d files: %m"); + goto finish; + } + + STRV_FOREACH(f, files) { + k = parse_file(sysctl_options, *f, true); + if (k < 0 && r == 0) + r = k; + } + } + + k = apply_all(sysctl_options); + if (k < 0 && r == 0) + r = k; + +finish: + ordered_hashmap_free_free_free(sysctl_options); + strv_free(arg_prefixes); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-sysctl/sysctl.d.xml b/src/grp-initprogs/systemd-sysctl/sysctl.d.xml new file mode 100644 index 0000000000..ccf6c8e39f --- /dev/null +++ b/src/grp-initprogs/systemd-sysctl/sysctl.d.xml @@ -0,0 +1,184 @@ +<?xml version="1.0"?> <!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2011 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="sysctl.d" + xmlns:xi="http://www.w3.org/2001/XInclude"> + + <refentryinfo> + <title>sysctl.d</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>sysctl.d</refentrytitle> + <manvolnum>5</manvolnum> + </refmeta> + + <refnamediv> + <refname>sysctl.d</refname> + <refpurpose>Configure kernel parameters at boot</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>/etc/sysctl.d/*.conf</filename></para> + <para><filename>/run/sysctl.d/*.conf</filename></para> + <para><filename>/usr/lib/sysctl.d/*.conf</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para>At boot, + <citerefentry><refentrytitle>systemd-sysctl.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> + reads configuration files from the above directories to configure + <citerefentry project='man-pages'><refentrytitle>sysctl</refentrytitle><manvolnum>8</manvolnum></citerefentry> + kernel parameters.</para> + </refsect1> + + <refsect1> + <title>Configuration Format</title> + + <para>The configuration files contain a list of variable + assignments, separated by newlines. Empty lines and lines whose + first non-whitespace character is <literal>#</literal> or + <literal>;</literal> are ignored.</para> + + <para>Note that either <literal>/</literal> or + <literal>.</literal> may be used as separators within sysctl + variable names. If the first separator is a slash, remaining + slashes and dots are left intact. If the first separator is a dot, + dots and slashes are interchanged. + <literal>kernel.domainname=foo</literal> and + <literal>kernel/domainname=foo</literal> are equivalent and will + cause <literal>foo</literal> to be written to + <filename>/proc/sys/kernel/domainname</filename>. Either + <literal>net.ipv4.conf.enp3s0/200.forwarding</literal> or + <literal>net/ipv4/conf/enp3s0.200/forwarding</literal> may be used + to refer to + <filename>/proc/sys/net/ipv4/conf/enp3s0.200/forwarding</filename>. + </para> + + <para>The settings configured with <filename>sysctl.d</filename> + files will be applied early on boot. The network + interface-specific options will also be applied individually for + each network interface as it shows up in the system. (More + specifically, <filename>net.ipv4.conf.*</filename>, + <filename>net.ipv6.conf.*</filename>, + <filename>net.ipv4.neigh.*</filename> and + <filename>net.ipv6.neigh.*</filename>).</para> + + <para>Many sysctl parameters only become available when certain + kernel modules are loaded. Modules are usually loaded on demand, + e.g. when certain hardware is plugged in or network brought up. + This means that + <citerefentry><refentrytitle>systemd-sysctl.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> + which runs during early boot will not configure such parameters if + they become available after it has run. To set such parameters, it + is recommended to add an + <citerefentry><refentrytitle>udev</refentrytitle><manvolnum>7</manvolnum></citerefentry> + rule to set those parameters when they become available. + Alternatively, a slightly simpler and less efficient option is to + add the module to + <citerefentry><refentrytitle>modules-load.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + causing it to be loaded statically before sysctl settings are + applied (see example below).</para> + </refsect1> + + <xi:include href="standard-conf.xml" xpointer="confd" /> + + <refsect1> + <title>Examples</title> + <example> + <title>Set kernel YP domain name</title> + <para><filename>/etc/sysctl.d/domain-name.conf</filename>: + </para> + + <programlisting>kernel.domainname=example.com</programlisting> + </example> + + <example> + <title>Apply settings available only when a certain module is loaded (method one)</title> + <para><filename>/etc/udev/rules.d/99-bridge.rules</filename>: + </para> + + <programlisting>ACTION=="add", SUBSYSTEM=="module", KERNEL=="br_netfilter", \ + RUN+="/usr/lib/systemd/systemd-sysctl --prefix=/net/bridge" +</programlisting> + + <para><filename>/etc/sysctl.d/bridge.conf</filename>: + </para> + + <programlisting>net.bridge.bridge-nf-call-ip6tables = 0 +net.bridge.bridge-nf-call-iptables = 0 +net.bridge.bridge-nf-call-arptables = 0 +</programlisting> + + <para>This method applies settings when the module is + loaded. Please note that, unless the <filename>br_netfilter</filename> + module is loaded, bridged packets will not be filtered by + Netfilter (starting with kernel 3.18), so simply not loading the + module is sufficient to avoid filtering.</para> + </example> + + <example> + <title>Apply settings available only when a certain module is loaded (method two)</title> + <para><filename>/etc/modules-load.d/bridge.conf</filename>: + </para> + + <programlisting>br_netfilter</programlisting> + + <para><filename>/etc/sysctl.d/bridge.conf</filename>: + </para> + + <programlisting>net.bridge.bridge-nf-call-ip6tables = 0 +net.bridge.bridge-nf-call-iptables = 0 +net.bridge.bridge-nf-call-arptables = 0 +</programlisting> + + <para>This method forces the module to be always loaded. Please + note that, unless the <filename>br_netfilter</filename> module is + loaded, bridged packets will not be filtered with Netfilter + (starting with kernel 3.18), so simply not loading the module is + sufficient to avoid filtering.</para> + </example> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-sysctl.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-delta</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>sysctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>sysctl.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>modprobe</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-sysctl/systemd-sysctl.service.in b/src/grp-initprogs/systemd-sysctl/systemd-sysctl.service.in new file mode 100644 index 0000000000..980f611df2 --- /dev/null +++ b/src/grp-initprogs/systemd-sysctl/systemd-sysctl.service.in @@ -0,0 +1,21 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Apply Kernel Variables +Documentation=man:systemd-sysctl.service(8) man:sysctl.d(5) +DefaultDependencies=no +Conflicts=shutdown.target +After=systemd-modules-load.service +Before=sysinit.target shutdown.target +ConditionPathIsReadWrite=/proc/sys/net/ + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootlibexecdir@/systemd-sysctl +TimeoutSec=90s diff --git a/src/grp-initprogs/systemd-sysctl/systemd-sysctl.service.xml b/src/grp-initprogs/systemd-sysctl/systemd-sysctl.service.xml new file mode 100644 index 0000000000..686b2cdef4 --- /dev/null +++ b/src/grp-initprogs/systemd-sysctl/systemd-sysctl.service.xml @@ -0,0 +1,152 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-sysctl.service" + xmlns:xi="http://www.w3.org/2001/XInclude"> + + <refentryinfo> + <title>systemd-sysctl.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-sysctl.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-sysctl.service</refname> + <refname>systemd-sysctl</refname> + <refpurpose>Configure kernel parameters at boot</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <cmdsynopsis> + <command>/usr/lib/systemd/systemd-sysctl</command> + <arg choice="opt" rep="repeat">OPTIONS</arg> + <arg choice="opt" rep="repeat"><replaceable>CONFIGFILE</replaceable></arg> + </cmdsynopsis> + <para><filename>systemd-sysctl.service</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-sysctl.service</filename> is an early boot + service that configures + <citerefentry project='man-pages'><refentrytitle>sysctl</refentrytitle><manvolnum>8</manvolnum></citerefentry> + kernel parameters by invoking <command>/usr/lib/systemd/systemd-sysctl</command>.</para> + + <para>When invoked with no arguments, <command>/usr/lib/systemd/systemd-sysctl</command> applies + all directives from configuration files listed in + <citerefentry><refentrytitle>sysctl.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>. + If one or more filenames are passed on the command line, only the directives in these files are + applied.</para> + + <para>In addition, <option>--prefix=</option> option may be used to limit which sysctl + settings are applied.</para> + + <para>See + <citerefentry project='man-pages'><refentrytitle>sysctl.d</refentrytitle><manvolnum>5</manvolnum></citerefentry> + for information about the configuration of sysctl settings. After sysctl configuration is + changed on disk, it must be written to the files in <filename>/proc/sys</filename> before it + takes effect. It is possible to update specific settings, or simply to reload all configuration, + see Examples below.</para> + </refsect1> + + <refsect1><title>Options</title> + <variablelist> + <varlistentry id='prefix'> + <term><option>--prefix=</option></term> + <listitem> + <para>Only apply rules with the specified prefix.</para> + </listitem> + </varlistentry> + + <xi:include href="standard-options.xml" xpointer="help" /> + <xi:include href="standard-options.xml" xpointer="version" /> + + </variablelist> + </refsect1> + + <refsect1> + <title>Examples</title> + + <example> + <title>Reset all sysctl settings</title> + + <programlisting>systemctl restart systemd-sysctl</programlisting> + </example> + + <example> + <title>View coredump handler configuration</title> + + <programlisting># sysctl kernel.core_pattern +kernel.core_pattern = |/usr/libexec/abrt-hook-ccpp %s %c %p %u %g %t %P %I +</programlisting> + </example> + + <example> + <title>Update coredump handler configuration</title> + + <programlisting># /usr/lib/systemd/systemd-sysctl --prefix kernel.core_pattern</programlisting> + + <para>This searches all the directories listed in + <citerefentry><refentrytitle>sysctl.d</refentrytitle><manvolnum>5</manvolnum></citerefentry> + for configuration files and writes <filename>/proc/sys/kernel/core_pattern</filename>.</para> + </example> + + <example> + <title>Update coredump handler configuration according to a specific file</title> + + <programlisting># /usr/lib/systemd/systemd-sysctl 50-coredump.conf</programlisting> + + <para>This applies all the settings found in <filename>50-coredump.conf</filename>. + Either <filename>/etc/sysctl.d/50-coredump.conf</filename>, or + <filename>/run/sysctl.d/50-coredump.conf</filename>, or + <filename>/usr/lib/sysctl.d/50-coredump.conf</filename> will be used, in the order + of preference.</para> + </example> + + <para>See + <citerefentry project='man-pages'><refentrytitle>sysctl</refentrytitle><manvolnum>8</manvolnum></citerefentry> + for various ways to directly apply sysctl settings.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>sysctl.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>sysctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-sysusers/.gitignore b/src/grp-initprogs/systemd-sysusers/.gitignore new file mode 100644 index 0000000000..c065034d29 --- /dev/null +++ b/src/grp-initprogs/systemd-sysusers/.gitignore @@ -0,0 +1,3 @@ +/basic.conf +/systemd.conf +/systemd-remote.conf diff --git a/src/grp-initprogs/systemd-sysusers/GNUmakefile b/src/grp-initprogs/systemd-sysusers/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-sysusers/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-sysusers/Makefile b/src/grp-initprogs/systemd-sysusers/Makefile new file mode 100644 index 0000000000..66af87f02c --- /dev/null +++ b/src/grp-initprogs/systemd-sysusers/Makefile @@ -0,0 +1,56 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_SYSUSERS),) +systemd_sysusers_SOURCES = \ + src/sysusers/sysusers.c + +systemd_sysusers_LDADD = \ + libsystemd-shared.la + +rootbin_PROGRAMS += \ + systemd-sysusers + +nodist_systemunit_DATA += \ + units/systemd-sysusers.service + +SYSINIT_TARGET_WANTS += \ + systemd-sysusers.service + +nodist_sysusers_DATA = \ + sysusers.d/systemd.conf \ + sysusers.d/basic.conf + +INSTALL_DIRS += \ + $(sysusersdir) +endif # ENABLE_SYSUSERS + +EXTRA_DIST += \ + units/systemd-sysusers.service.in \ + sysusers.d/systemd.conf.m4 \ + sysusers.d/systemd-remote.conf.m4 \ + sysusers.d/basic.conf.in + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-sysusers/basic.sysusers.in b/src/grp-initprogs/systemd-sysusers/basic.sysusers.in new file mode 100644 index 0000000000..b2dc5ebd4f --- /dev/null +++ b/src/grp-initprogs/systemd-sysusers/basic.sysusers.in @@ -0,0 +1,36 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +# The superuser +u root 0 "Super User" /root + +# The nobody user for NFS file systems +u nobody 65534 "Nobody" - + +# Administrator group: can *see* more than normal users +g adm - - - + +# Administrator group: can *do* more than normal users +g wheel - - - + +# Access to certain kernel and userspace facilities +g kmem - - - +g tty @TTY_GID@ - - +g utmp - - - + +# Hardware access groups +g audio - - - +g cdrom - - - +g dialout - - - +g disk - - - +g input - - - +g lp - - - +g tape - - - +g video - - - + +# Default group for normal users +g users - - - diff --git a/src/grp-initprogs/systemd-sysusers/systemd-sysusers.service.in b/src/grp-initprogs/systemd-sysusers/systemd-sysusers.service.in new file mode 100644 index 0000000000..4d8309ab6b --- /dev/null +++ b/src/grp-initprogs/systemd-sysusers/systemd-sysusers.service.in @@ -0,0 +1,21 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Create System Users +Documentation=man:sysusers.d(5) man:systemd-sysusers.service(8) +DefaultDependencies=no +Conflicts=shutdown.target +After=systemd-remount-fs.service +Before=sysinit.target shutdown.target systemd-update-done.service +ConditionNeedsUpdate=/etc + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootbindir@/systemd-sysusers +TimeoutSec=90s diff --git a/src/grp-initprogs/systemd-sysusers/systemd-sysusers.xml b/src/grp-initprogs/systemd-sysusers/systemd-sysusers.xml new file mode 100644 index 0000000000..4892caad12 --- /dev/null +++ b/src/grp-initprogs/systemd-sysusers/systemd-sysusers.xml @@ -0,0 +1,116 @@ +<?xml version='1.0'?> <!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" + "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + +<!-- + This file is part of systemd. + + Copyright 2014 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> + +<refentry id="systemd-sysusers" + xmlns:xi="http://www.w3.org/2001/XInclude"> + + <refentryinfo> + <title>systemd-sysusers</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-sysusers</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-sysusers</refname> + <refname>systemd-sysusers.service</refname> + <refpurpose>Allocate system users and groups</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <cmdsynopsis> + <command>systemd-sysusers</command> + <arg choice="opt" rep="repeat">OPTIONS</arg> + <arg choice="opt" rep="repeat"><replaceable>CONFIGFILE</replaceable></arg> + </cmdsynopsis> + + <para><filename>systemd-sysusers.service</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><command>systemd-sysusers</command> creates system users and + groups, based on the file format and location specified in + <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>. + </para> + + <para>If invoked with no arguments, it applies all directives from + all files found. If one or more filenames are passed on the + command line, only the directives in these files are applied. If + only the basename of a file is specified, all directories as + specified in + <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry> + are searched for a matching file. If the string + <filename>-</filename> is specified as filename, entries from the + standard input of the process are read.</para> + </refsect1> + + <refsect1> + <title>Options</title> + + <para>The following options are understood:</para> + + <variablelist> + <varlistentry> + <term><option>--root=<replaceable>root</replaceable></option></term> + <listitem><para>Takes a directory path as an argument. All + paths will be prefixed with the given alternate + <replaceable>root</replaceable> path, including config search + paths. </para></listitem> + </varlistentry> + + <xi:include href="standard-options.xml" xpointer="help" /> + <xi:include href="standard-options.xml" xpointer="version" /> + </variablelist> + + </refsect1> + + <refsect1> + <title>Exit status</title> + + <para>On success, 0 is returned, a non-zero failure code + otherwise.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>sysusers.d</refentrytitle><manvolnum>5</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-sysusers/sysusers.c b/src/grp-initprogs/systemd-sysusers/sysusers.c new file mode 100644 index 0000000000..fc1ae6df3a --- /dev/null +++ b/src/grp-initprogs/systemd-sysusers/sysusers.c @@ -0,0 +1,1846 @@ +/*** + This file is part of systemd. + + Copyright 2014 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <getopt.h> +#include <grp.h> +#include <gshadow.h> +#include <pwd.h> +#include <shadow.h> +#include <utmp.h> + +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/conf-files.h" +#include "systemd-basic/copy.h" +#include "systemd-basic/def.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/fileio-label.h" +#include "systemd-basic/formats-util.h" +#include "systemd-basic/hashmap.h" +#include "systemd-basic/path-util.h" +#include "systemd-basic/selinux-util.h" +#include "systemd-basic/smack-util.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/strv.h" +#include "systemd-basic/user-util.h" +#include "systemd-basic/utf8.h" +#include "systemd-basic/util.h" +#include "systemd-shared/specifier.h" +#include "systemd-shared/uid-range.h" + +typedef enum ItemType { + ADD_USER = 'u', + ADD_GROUP = 'g', + ADD_MEMBER = 'm', + ADD_RANGE = 'r', +} ItemType; +typedef struct Item { + ItemType type; + + char *name; + char *uid_path; + char *gid_path; + char *description; + char *home; + + gid_t gid; + uid_t uid; + + bool gid_set:1; + bool uid_set:1; + + bool todo_user:1; + bool todo_group:1; +} Item; + +static char *arg_root = NULL; + +static const char conf_file_dirs[] = CONF_PATHS_NULSTR("sysusers.d"); + +static Hashmap *users = NULL, *groups = NULL; +static Hashmap *todo_uids = NULL, *todo_gids = NULL; +static Hashmap *members = NULL; + +static Hashmap *database_uid = NULL, *database_user = NULL; +static Hashmap *database_gid = NULL, *database_group = NULL; + +static uid_t search_uid = UID_INVALID; +static UidRange *uid_range = NULL; +static unsigned n_uid_range = 0; + +static int load_user_database(void) { + _cleanup_fclose_ FILE *f = NULL; + const char *passwd_path; + struct passwd *pw; + int r; + + passwd_path = prefix_roota(arg_root, "/etc/passwd"); + f = fopen(passwd_path, "re"); + if (!f) + return errno == ENOENT ? 0 : -errno; + + r = hashmap_ensure_allocated(&database_user, &string_hash_ops); + if (r < 0) + return r; + + r = hashmap_ensure_allocated(&database_uid, NULL); + if (r < 0) + return r; + + errno = 0; + while ((pw = fgetpwent(f))) { + char *n; + int k, q; + + n = strdup(pw->pw_name); + if (!n) + return -ENOMEM; + + k = hashmap_put(database_user, n, UID_TO_PTR(pw->pw_uid)); + if (k < 0 && k != -EEXIST) { + free(n); + return k; + } + + q = hashmap_put(database_uid, UID_TO_PTR(pw->pw_uid), n); + if (q < 0 && q != -EEXIST) { + if (k < 0) + free(n); + return q; + } + + if (q < 0 && k < 0) + free(n); + + errno = 0; + } + if (!IN_SET(errno, 0, ENOENT)) + return -errno; + + return 0; +} + +static int load_group_database(void) { + _cleanup_fclose_ FILE *f = NULL; + const char *group_path; + struct group *gr; + int r; + + group_path = prefix_roota(arg_root, "/etc/group"); + f = fopen(group_path, "re"); + if (!f) + return errno == ENOENT ? 0 : -errno; + + r = hashmap_ensure_allocated(&database_group, &string_hash_ops); + if (r < 0) + return r; + + r = hashmap_ensure_allocated(&database_gid, NULL); + if (r < 0) + return r; + + errno = 0; + while ((gr = fgetgrent(f))) { + char *n; + int k, q; + + n = strdup(gr->gr_name); + if (!n) + return -ENOMEM; + + k = hashmap_put(database_group, n, GID_TO_PTR(gr->gr_gid)); + if (k < 0 && k != -EEXIST) { + free(n); + return k; + } + + q = hashmap_put(database_gid, GID_TO_PTR(gr->gr_gid), n); + if (q < 0 && q != -EEXIST) { + if (k < 0) + free(n); + return q; + } + + if (q < 0 && k < 0) + free(n); + + errno = 0; + } + if (!IN_SET(errno, 0, ENOENT)) + return -errno; + + return 0; +} + +static int make_backup(const char *target, const char *x) { + _cleanup_close_ int src = -1; + _cleanup_fclose_ FILE *dst = NULL; + _cleanup_free_ char *temp = NULL; + char *backup; + struct timespec ts[2]; + struct stat st; + int r; + + src = open(x, O_RDONLY|O_CLOEXEC|O_NOCTTY); + if (src < 0) { + if (errno == ENOENT) /* No backup necessary... */ + return 0; + + return -errno; + } + + if (fstat(src, &st) < 0) + return -errno; + + r = fopen_temporary_label(target, x, &dst, &temp); + if (r < 0) + return r; + + r = copy_bytes(src, fileno(dst), (uint64_t) -1, true); + if (r < 0) + goto fail; + + /* Don't fail on chmod() or chown(). If it stays owned by us + * and/or unreadable by others, then it isn't too bad... */ + + backup = strjoina(x, "-"); + + /* Copy over the access mask */ + if (fchmod(fileno(dst), st.st_mode & 07777) < 0) + log_warning_errno(errno, "Failed to change mode on %s: %m", backup); + + if (fchown(fileno(dst), st.st_uid, st.st_gid)< 0) + log_warning_errno(errno, "Failed to change ownership of %s: %m", backup); + + ts[0] = st.st_atim; + ts[1] = st.st_mtim; + if (futimens(fileno(dst), ts) < 0) + log_warning_errno(errno, "Failed to fix access and modification time of %s: %m", backup); + + if (rename(temp, backup) < 0) + goto fail; + + return 0; + +fail: + unlink(temp); + return r; +} + +static int putgrent_with_members(const struct group *gr, FILE *group) { + char **a; + + assert(gr); + assert(group); + + a = hashmap_get(members, gr->gr_name); + if (a) { + _cleanup_strv_free_ char **l = NULL; + bool added = false; + char **i; + + l = strv_copy(gr->gr_mem); + if (!l) + return -ENOMEM; + + STRV_FOREACH(i, a) { + if (strv_find(l, *i)) + continue; + + if (strv_extend(&l, *i) < 0) + return -ENOMEM; + + added = true; + } + + if (added) { + struct group t; + + strv_uniq(l); + strv_sort(l); + + t = *gr; + t.gr_mem = l; + + errno = 0; + if (putgrent(&t, group) != 0) + return errno > 0 ? -errno : -EIO; + + return 1; + } + } + + errno = 0; + if (putgrent(gr, group) != 0) + return errno > 0 ? -errno : -EIO; + + return 0; +} + +static int putsgent_with_members(const struct sgrp *sg, FILE *gshadow) { + char **a; + + assert(sg); + assert(gshadow); + + a = hashmap_get(members, sg->sg_namp); + if (a) { + _cleanup_strv_free_ char **l = NULL; + bool added = false; + char **i; + + l = strv_copy(sg->sg_mem); + if (!l) + return -ENOMEM; + + STRV_FOREACH(i, a) { + if (strv_find(l, *i)) + continue; + + if (strv_extend(&l, *i) < 0) + return -ENOMEM; + + added = true; + } + + if (added) { + struct sgrp t; + + strv_uniq(l); + strv_sort(l); + + t = *sg; + t.sg_mem = l; + + errno = 0; + if (putsgent(&t, gshadow) != 0) + return errno > 0 ? -errno : -EIO; + + return 1; + } + } + + errno = 0; + if (putsgent(sg, gshadow) != 0) + return errno > 0 ? -errno : -EIO; + + return 0; +} + +static int sync_rights(FILE *from, FILE *to) { + struct stat st; + + if (fstat(fileno(from), &st) < 0) + return -errno; + + if (fchmod(fileno(to), st.st_mode & 07777) < 0) + return -errno; + + if (fchown(fileno(to), st.st_uid, st.st_gid) < 0) + return -errno; + + return 0; +} + +static int rename_and_apply_smack(const char *temp_path, const char *dest_path) { + int r = 0; + if (rename(temp_path, dest_path) < 0) + return -errno; + +#ifdef SMACK_RUN_LABEL + r = mac_smack_apply(dest_path, SMACK_ATTR_ACCESS, SMACK_FLOOR_LABEL); + if (r < 0) + return r; +#endif + return r; +} + +static int write_files(void) { + + _cleanup_fclose_ FILE *passwd = NULL, *group = NULL, *shadow = NULL, *gshadow = NULL; + _cleanup_free_ char *passwd_tmp = NULL, *group_tmp = NULL, *shadow_tmp = NULL, *gshadow_tmp = NULL; + const char *passwd_path = NULL, *group_path = NULL, *shadow_path = NULL, *gshadow_path = NULL; + bool group_changed = false; + Iterator iterator; + Item *i; + int r; + + if (hashmap_size(todo_gids) > 0 || hashmap_size(members) > 0) { + _cleanup_fclose_ FILE *original = NULL; + + /* First we update the actual group list file */ + group_path = prefix_roota(arg_root, "/etc/group"); + r = fopen_temporary_label("/etc/group", group_path, &group, &group_tmp); + if (r < 0) + goto finish; + + original = fopen(group_path, "re"); + if (original) { + struct group *gr; + + r = sync_rights(original, group); + if (r < 0) + goto finish; + + errno = 0; + while ((gr = fgetgrent(original))) { + /* Safety checks against name and GID + * collisions. Normally, this should + * be unnecessary, but given that we + * look at the entries anyway here, + * let's make an extra verification + * step that we don't generate + * duplicate entries. */ + + i = hashmap_get(groups, gr->gr_name); + if (i && i->todo_group) { + log_error("%s: Group \"%s\" already exists.", group_path, gr->gr_name); + r = -EEXIST; + goto finish; + } + + if (hashmap_contains(todo_gids, GID_TO_PTR(gr->gr_gid))) { + log_error("%s: Detected collision for GID " GID_FMT ".", group_path, gr->gr_gid); + r = -EEXIST; + goto finish; + } + + r = putgrent_with_members(gr, group); + if (r < 0) + goto finish; + if (r > 0) + group_changed = true; + + errno = 0; + } + if (!IN_SET(errno, 0, ENOENT)) { + r = -errno; + goto finish; + } + + } else if (errno != ENOENT) { + r = -errno; + goto finish; + } else if (fchmod(fileno(group), 0644) < 0) { + r = -errno; + goto finish; + } + + HASHMAP_FOREACH(i, todo_gids, iterator) { + struct group n = { + .gr_name = i->name, + .gr_gid = i->gid, + .gr_passwd = (char*) "x", + }; + + r = putgrent_with_members(&n, group); + if (r < 0) + goto finish; + + group_changed = true; + } + + r = fflush_and_check(group); + if (r < 0) + goto finish; + + if (original) { + fclose(original); + original = NULL; + } + + /* OK, now also update the shadow file for the group list */ + gshadow_path = prefix_roota(arg_root, "/etc/gshadow"); + r = fopen_temporary_label("/etc/gshadow", gshadow_path, &gshadow, &gshadow_tmp); + if (r < 0) + goto finish; + + original = fopen(gshadow_path, "re"); + if (original) { + struct sgrp *sg; + + r = sync_rights(original, gshadow); + if (r < 0) + goto finish; + + errno = 0; + while ((sg = fgetsgent(original))) { + + i = hashmap_get(groups, sg->sg_namp); + if (i && i->todo_group) { + log_error("%s: Group \"%s\" already exists.", gshadow_path, sg->sg_namp); + r = -EEXIST; + goto finish; + } + + r = putsgent_with_members(sg, gshadow); + if (r < 0) + goto finish; + if (r > 0) + group_changed = true; + + errno = 0; + } + if (!IN_SET(errno, 0, ENOENT)) { + r = -errno; + goto finish; + } + + } else if (errno != ENOENT) { + r = -errno; + goto finish; + } else if (fchmod(fileno(gshadow), 0000) < 0) { + r = -errno; + goto finish; + } + + HASHMAP_FOREACH(i, todo_gids, iterator) { + struct sgrp n = { + .sg_namp = i->name, + .sg_passwd = (char*) "!!", + }; + + r = putsgent_with_members(&n, gshadow); + if (r < 0) + goto finish; + + group_changed = true; + } + + r = fflush_and_check(gshadow); + if (r < 0) + goto finish; + } + + if (hashmap_size(todo_uids) > 0) { + _cleanup_fclose_ FILE *original = NULL; + long lstchg; + + /* First we update the user database itself */ + passwd_path = prefix_roota(arg_root, "/etc/passwd"); + r = fopen_temporary_label("/etc/passwd", passwd_path, &passwd, &passwd_tmp); + if (r < 0) + goto finish; + + original = fopen(passwd_path, "re"); + if (original) { + struct passwd *pw; + + r = sync_rights(original, passwd); + if (r < 0) + goto finish; + + errno = 0; + while ((pw = fgetpwent(original))) { + + i = hashmap_get(users, pw->pw_name); + if (i && i->todo_user) { + log_error("%s: User \"%s\" already exists.", passwd_path, pw->pw_name); + r = -EEXIST; + goto finish; + } + + if (hashmap_contains(todo_uids, UID_TO_PTR(pw->pw_uid))) { + log_error("%s: Detected collision for UID " UID_FMT ".", passwd_path, pw->pw_uid); + r = -EEXIST; + goto finish; + } + + errno = 0; + if (putpwent(pw, passwd) < 0) { + r = errno ? -errno : -EIO; + goto finish; + } + + errno = 0; + } + if (!IN_SET(errno, 0, ENOENT)) { + r = -errno; + goto finish; + } + + } else if (errno != ENOENT) { + r = -errno; + goto finish; + } else if (fchmod(fileno(passwd), 0644) < 0) { + r = -errno; + goto finish; + } + + HASHMAP_FOREACH(i, todo_uids, iterator) { + struct passwd n = { + .pw_name = i->name, + .pw_uid = i->uid, + .pw_gid = i->gid, + .pw_gecos = i->description, + + /* "x" means the password is stored in + * the shadow file */ + .pw_passwd = (char*) "x", + + /* We default to the root directory as home */ + .pw_dir = i->home ? i->home : (char*) "/", + + /* Initialize the shell to nologin, + * with one exception: for root we + * patch in something special */ + .pw_shell = i->uid == 0 ? (char*) "/bin/sh" : (char*) "/sbin/nologin", + }; + + errno = 0; + if (putpwent(&n, passwd) != 0) { + r = errno ? -errno : -EIO; + goto finish; + } + } + + r = fflush_and_check(passwd); + if (r < 0) + goto finish; + + if (original) { + fclose(original); + original = NULL; + } + + /* The we update the shadow database */ + shadow_path = prefix_roota(arg_root, "/etc/shadow"); + r = fopen_temporary_label("/etc/shadow", shadow_path, &shadow, &shadow_tmp); + if (r < 0) + goto finish; + + lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY); + + original = fopen(shadow_path, "re"); + if (original) { + struct spwd *sp; + + r = sync_rights(original, shadow); + if (r < 0) + goto finish; + + errno = 0; + while ((sp = fgetspent(original))) { + + i = hashmap_get(users, sp->sp_namp); + if (i && i->todo_user) { + /* we will update the existing entry */ + sp->sp_lstchg = lstchg; + + /* only the /etc/shadow stage is left, so we can + * safely remove the item from the todo set */ + i->todo_user = false; + hashmap_remove(todo_uids, UID_TO_PTR(i->uid)); + } + + errno = 0; + if (putspent(sp, shadow) < 0) { + r = errno ? -errno : -EIO; + goto finish; + } + + errno = 0; + } + if (!IN_SET(errno, 0, ENOENT)) { + r = -errno; + goto finish; + } + } else if (errno != ENOENT) { + r = -errno; + goto finish; + } else if (fchmod(fileno(shadow), 0000) < 0) { + r = -errno; + goto finish; + } + + HASHMAP_FOREACH(i, todo_uids, iterator) { + struct spwd n = { + .sp_namp = i->name, + .sp_pwdp = (char*) "!!", + .sp_lstchg = lstchg, + .sp_min = -1, + .sp_max = -1, + .sp_warn = -1, + .sp_inact = -1, + .sp_expire = -1, + .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */ + }; + + errno = 0; + if (putspent(&n, shadow) != 0) { + r = errno ? -errno : -EIO; + goto finish; + } + } + + r = fflush_and_check(shadow); + if (r < 0) + goto finish; + } + + /* Make a backup of the old files */ + if (group_changed) { + if (group) { + r = make_backup("/etc/group", group_path); + if (r < 0) + goto finish; + } + if (gshadow) { + r = make_backup("/etc/gshadow", gshadow_path); + if (r < 0) + goto finish; + } + } + + if (passwd) { + r = make_backup("/etc/passwd", passwd_path); + if (r < 0) + goto finish; + } + if (shadow) { + r = make_backup("/etc/shadow", shadow_path); + if (r < 0) + goto finish; + } + + /* And make the new files count */ + if (group_changed) { + if (group) { + r = rename_and_apply_smack(group_tmp, group_path); + if (r < 0) + goto finish; + + group_tmp = mfree(group_tmp); + } + if (gshadow) { + r = rename_and_apply_smack(gshadow_tmp, gshadow_path); + if (r < 0) + goto finish; + + gshadow_tmp = mfree(gshadow_tmp); + } + } + + if (passwd) { + r = rename_and_apply_smack(passwd_tmp, passwd_path); + if (r < 0) + goto finish; + + passwd_tmp = mfree(passwd_tmp); + } + if (shadow) { + r = rename_and_apply_smack(shadow_tmp, shadow_path); + if (r < 0) + goto finish; + + shadow_tmp = mfree(shadow_tmp); + } + + r = 0; + +finish: + if (passwd_tmp) + unlink(passwd_tmp); + if (shadow_tmp) + unlink(shadow_tmp); + if (group_tmp) + unlink(group_tmp); + if (gshadow_tmp) + unlink(gshadow_tmp); + + return r; +} + +static int uid_is_ok(uid_t uid, const char *name) { + struct passwd *p; + struct group *g; + const char *n; + Item *i; + + /* Let's see if we already have assigned the UID a second time */ + if (hashmap_get(todo_uids, UID_TO_PTR(uid))) + return 0; + + /* Try to avoid using uids that are already used by a group + * that doesn't have the same name as our new user. */ + i = hashmap_get(todo_gids, GID_TO_PTR(uid)); + if (i && !streq(i->name, name)) + return 0; + + /* Let's check the files directly */ + if (hashmap_contains(database_uid, UID_TO_PTR(uid))) + return 0; + + n = hashmap_get(database_gid, GID_TO_PTR(uid)); + if (n && !streq(n, name)) + return 0; + + /* Let's also check via NSS, to avoid UID clashes over LDAP and such, just in case */ + if (!arg_root) { + errno = 0; + p = getpwuid(uid); + if (p) + return 0; + if (!IN_SET(errno, 0, ENOENT)) + return -errno; + + errno = 0; + g = getgrgid((gid_t) uid); + if (g) { + if (!streq(g->gr_name, name)) + return 0; + } else if (!IN_SET(errno, 0, ENOENT)) + return -errno; + } + + return 1; +} + +static int root_stat(const char *p, struct stat *st) { + const char *fix; + + fix = prefix_roota(arg_root, p); + if (stat(fix, st) < 0) + return -errno; + + return 0; +} + +static int read_id_from_file(Item *i, uid_t *_uid, gid_t *_gid) { + struct stat st; + bool found_uid = false, found_gid = false; + uid_t uid = 0; + gid_t gid = 0; + + assert(i); + + /* First, try to get the gid directly */ + if (_gid && i->gid_path && root_stat(i->gid_path, &st) >= 0) { + gid = st.st_gid; + found_gid = true; + } + + /* Then, try to get the uid directly */ + if ((_uid || (_gid && !found_gid)) + && i->uid_path + && root_stat(i->uid_path, &st) >= 0) { + + uid = st.st_uid; + found_uid = true; + + /* If we need the gid, but had no success yet, also derive it from the uid path */ + if (_gid && !found_gid) { + gid = st.st_gid; + found_gid = true; + } + } + + /* If that didn't work yet, then let's reuse the gid as uid */ + if (_uid && !found_uid && i->gid_path) { + + if (found_gid) { + uid = (uid_t) gid; + found_uid = true; + } else if (root_stat(i->gid_path, &st) >= 0) { + uid = (uid_t) st.st_gid; + found_uid = true; + } + } + + if (_uid) { + if (!found_uid) + return 0; + + *_uid = uid; + } + + if (_gid) { + if (!found_gid) + return 0; + + *_gid = gid; + } + + return 1; +} + +static int add_user(Item *i) { + void *z; + int r; + + assert(i); + + /* Check the database directly */ + z = hashmap_get(database_user, i->name); + if (z) { + log_debug("User %s already exists.", i->name); + i->uid = PTR_TO_UID(z); + i->uid_set = true; + return 0; + } + + if (!arg_root) { + struct passwd *p; + + /* Also check NSS */ + errno = 0; + p = getpwnam(i->name); + if (p) { + log_debug("User %s already exists.", i->name); + i->uid = p->pw_uid; + i->uid_set = true; + + r = free_and_strdup(&i->description, p->pw_gecos); + if (r < 0) + return log_oom(); + + return 0; + } + if (!IN_SET(errno, 0, ENOENT)) + return log_error_errno(errno, "Failed to check if user %s already exists: %m", i->name); + } + + /* Try to use the suggested numeric uid */ + if (i->uid_set) { + r = uid_is_ok(i->uid, i->name); + if (r < 0) + return log_error_errno(r, "Failed to verify uid " UID_FMT ": %m", i->uid); + if (r == 0) { + log_debug("Suggested user ID " UID_FMT " for %s already used.", i->uid, i->name); + i->uid_set = false; + } + } + + /* If that didn't work, try to read it from the specified path */ + if (!i->uid_set) { + uid_t c; + + if (read_id_from_file(i, &c, NULL) > 0) { + + if (c <= 0 || !uid_range_contains(uid_range, n_uid_range, c)) + log_debug("User ID " UID_FMT " of file not suitable for %s.", c, i->name); + else { + r = uid_is_ok(c, i->name); + if (r < 0) + return log_error_errno(r, "Failed to verify uid " UID_FMT ": %m", i->uid); + else if (r > 0) { + i->uid = c; + i->uid_set = true; + } else + log_debug("User ID " UID_FMT " of file for %s is already used.", c, i->name); + } + } + } + + /* Otherwise, try to reuse the group ID */ + if (!i->uid_set && i->gid_set) { + r = uid_is_ok((uid_t) i->gid, i->name); + if (r < 0) + return log_error_errno(r, "Failed to verify uid " UID_FMT ": %m", i->uid); + if (r > 0) { + i->uid = (uid_t) i->gid; + i->uid_set = true; + } + } + + /* And if that didn't work either, let's try to find a free one */ + if (!i->uid_set) { + for (;;) { + r = uid_range_next_lower(uid_range, n_uid_range, &search_uid); + if (r < 0) { + log_error("No free user ID available for %s.", i->name); + return r; + } + + r = uid_is_ok(search_uid, i->name); + if (r < 0) + return log_error_errno(r, "Failed to verify uid " UID_FMT ": %m", i->uid); + else if (r > 0) + break; + } + + i->uid_set = true; + i->uid = search_uid; + } + + r = hashmap_ensure_allocated(&todo_uids, NULL); + if (r < 0) + return log_oom(); + + r = hashmap_put(todo_uids, UID_TO_PTR(i->uid), i); + if (r < 0) + return log_oom(); + + i->todo_user = true; + log_info("Creating user %s (%s) with uid " UID_FMT " and gid " GID_FMT ".", i->name, strna(i->description), i->uid, i->gid); + + return 0; +} + +static int gid_is_ok(gid_t gid) { + struct group *g; + struct passwd *p; + + if (hashmap_get(todo_gids, GID_TO_PTR(gid))) + return 0; + + /* Avoid reusing gids that are already used by a different user */ + if (hashmap_get(todo_uids, UID_TO_PTR(gid))) + return 0; + + if (hashmap_contains(database_gid, GID_TO_PTR(gid))) + return 0; + + if (hashmap_contains(database_uid, UID_TO_PTR(gid))) + return 0; + + if (!arg_root) { + errno = 0; + g = getgrgid(gid); + if (g) + return 0; + if (!IN_SET(errno, 0, ENOENT)) + return -errno; + + errno = 0; + p = getpwuid((uid_t) gid); + if (p) + return 0; + if (!IN_SET(errno, 0, ENOENT)) + return -errno; + } + + return 1; +} + +static int add_group(Item *i) { + void *z; + int r; + + assert(i); + + /* Check the database directly */ + z = hashmap_get(database_group, i->name); + if (z) { + log_debug("Group %s already exists.", i->name); + i->gid = PTR_TO_GID(z); + i->gid_set = true; + return 0; + } + + /* Also check NSS */ + if (!arg_root) { + struct group *g; + + errno = 0; + g = getgrnam(i->name); + if (g) { + log_debug("Group %s already exists.", i->name); + i->gid = g->gr_gid; + i->gid_set = true; + return 0; + } + if (!IN_SET(errno, 0, ENOENT)) + return log_error_errno(errno, "Failed to check if group %s already exists: %m", i->name); + } + + /* Try to use the suggested numeric gid */ + if (i->gid_set) { + r = gid_is_ok(i->gid); + if (r < 0) + return log_error_errno(r, "Failed to verify gid " GID_FMT ": %m", i->gid); + if (r == 0) { + log_debug("Suggested group ID " GID_FMT " for %s already used.", i->gid, i->name); + i->gid_set = false; + } + } + + /* Try to reuse the numeric uid, if there's one */ + if (!i->gid_set && i->uid_set) { + r = gid_is_ok((gid_t) i->uid); + if (r < 0) + return log_error_errno(r, "Failed to verify gid " GID_FMT ": %m", i->gid); + if (r > 0) { + i->gid = (gid_t) i->uid; + i->gid_set = true; + } + } + + /* If that didn't work, try to read it from the specified path */ + if (!i->gid_set) { + gid_t c; + + if (read_id_from_file(i, NULL, &c) > 0) { + + if (c <= 0 || !uid_range_contains(uid_range, n_uid_range, c)) + log_debug("Group ID " GID_FMT " of file not suitable for %s.", c, i->name); + else { + r = gid_is_ok(c); + if (r < 0) + return log_error_errno(r, "Failed to verify gid " GID_FMT ": %m", i->gid); + else if (r > 0) { + i->gid = c; + i->gid_set = true; + } else + log_debug("Group ID " GID_FMT " of file for %s already used.", c, i->name); + } + } + } + + /* And if that didn't work either, let's try to find a free one */ + if (!i->gid_set) { + for (;;) { + /* We look for new GIDs in the UID pool! */ + r = uid_range_next_lower(uid_range, n_uid_range, &search_uid); + if (r < 0) { + log_error("No free group ID available for %s.", i->name); + return r; + } + + r = gid_is_ok(search_uid); + if (r < 0) + return log_error_errno(r, "Failed to verify gid " GID_FMT ": %m", i->gid); + else if (r > 0) + break; + } + + i->gid_set = true; + i->gid = search_uid; + } + + r = hashmap_ensure_allocated(&todo_gids, NULL); + if (r < 0) + return log_oom(); + + r = hashmap_put(todo_gids, GID_TO_PTR(i->gid), i); + if (r < 0) + return log_oom(); + + i->todo_group = true; + log_info("Creating group %s with gid " GID_FMT ".", i->name, i->gid); + + return 0; +} + +static int process_item(Item *i) { + int r; + + assert(i); + + switch (i->type) { + + case ADD_USER: + r = add_group(i); + if (r < 0) + return r; + + return add_user(i); + + case ADD_GROUP: { + Item *j; + + j = hashmap_get(users, i->name); + if (j) { + /* There's already user to be created for this + * name, let's process that in one step */ + + if (i->gid_set) { + j->gid = i->gid; + j->gid_set = true; + } + + if (i->gid_path) { + r = free_and_strdup(&j->gid_path, i->gid_path); + if (r < 0) + return log_oom(); + } + + return 0; + } + + return add_group(i); + } + + default: + assert_not_reached("Unknown item type"); + } +} + +static void item_free(Item *i) { + + if (!i) + return; + + free(i->name); + free(i->uid_path); + free(i->gid_path); + free(i->description); + free(i->home); + free(i); +} + +DEFINE_TRIVIAL_CLEANUP_FUNC(Item*, item_free); + +static int add_implicit(void) { + char *g, **l; + Iterator iterator; + int r; + + /* Implicitly create additional users and groups, if they were listed in "m" lines */ + + HASHMAP_FOREACH_KEY(l, g, members, iterator) { + Item *i; + char **m; + + i = hashmap_get(groups, g); + if (!i) { + _cleanup_(item_freep) Item *j = NULL; + + r = hashmap_ensure_allocated(&groups, &string_hash_ops); + if (r < 0) + return log_oom(); + + j = new0(Item, 1); + if (!j) + return log_oom(); + + j->type = ADD_GROUP; + j->name = strdup(g); + if (!j->name) + return log_oom(); + + r = hashmap_put(groups, j->name, j); + if (r < 0) + return log_oom(); + + log_debug("Adding implicit group '%s' due to m line", j->name); + j = NULL; + } + + STRV_FOREACH(m, l) { + + i = hashmap_get(users, *m); + if (!i) { + _cleanup_(item_freep) Item *j = NULL; + + r = hashmap_ensure_allocated(&users, &string_hash_ops); + if (r < 0) + return log_oom(); + + j = new0(Item, 1); + if (!j) + return log_oom(); + + j->type = ADD_USER; + j->name = strdup(*m); + if (!j->name) + return log_oom(); + + r = hashmap_put(users, j->name, j); + if (r < 0) + return log_oom(); + + log_debug("Adding implicit user '%s' due to m line", j->name); + j = NULL; + } + } + } + + return 0; +} + +static bool item_equal(Item *a, Item *b) { + assert(a); + assert(b); + + if (a->type != b->type) + return false; + + if (!streq_ptr(a->name, b->name)) + return false; + + if (!streq_ptr(a->uid_path, b->uid_path)) + return false; + + if (!streq_ptr(a->gid_path, b->gid_path)) + return false; + + if (!streq_ptr(a->description, b->description)) + return false; + + if (a->uid_set != b->uid_set) + return false; + + if (a->uid_set && a->uid != b->uid) + return false; + + if (a->gid_set != b->gid_set) + return false; + + if (a->gid_set && a->gid != b->gid) + return false; + + if (!streq_ptr(a->home, b->home)) + return false; + + return true; +} + +static int parse_line(const char *fname, unsigned line, const char *buffer) { + + static const Specifier specifier_table[] = { + { 'm', specifier_machine_id, NULL }, + { 'b', specifier_boot_id, NULL }, + { 'H', specifier_host_name, NULL }, + { 'v', specifier_kernel_release, NULL }, + {} + }; + + _cleanup_free_ char *action = NULL, *name = NULL, *id = NULL, *resolved_name = NULL, *resolved_id = NULL, *description = NULL, *home = NULL; + _cleanup_(item_freep) Item *i = NULL; + Item *existing; + Hashmap *h; + int r; + const char *p; + + assert(fname); + assert(line >= 1); + assert(buffer); + + /* Parse columns */ + p = buffer; + r = extract_many_words(&p, NULL, EXTRACT_QUOTES, &action, &name, &id, &description, &home, NULL); + if (r < 0) { + log_error("[%s:%u] Syntax error.", fname, line); + return r; + } + if (r < 2) { + log_error("[%s:%u] Missing action and name columns.", fname, line); + return -EINVAL; + } + if (!isempty(p)) { + log_error("[%s:%u] Trailing garbage.", fname, line); + return -EINVAL; + } + + /* Verify action */ + if (strlen(action) != 1) { + log_error("[%s:%u] Unknown modifier '%s'", fname, line, action); + return -EINVAL; + } + + if (!IN_SET(action[0], ADD_USER, ADD_GROUP, ADD_MEMBER, ADD_RANGE)) { + log_error("[%s:%u] Unknown command type '%c'.", fname, line, action[0]); + return -EBADMSG; + } + + /* Verify name */ + if (isempty(name) || streq(name, "-")) + name = mfree(name); + + if (name) { + r = specifier_printf(name, specifier_table, NULL, &resolved_name); + if (r < 0) { + log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, name); + return r; + } + + if (!valid_user_group_name(resolved_name)) { + log_error("[%s:%u] '%s' is not a valid user or group name.", fname, line, resolved_name); + return -EINVAL; + } + } + + /* Verify id */ + if (isempty(id) || streq(id, "-")) + id = mfree(id); + + if (id) { + r = specifier_printf(id, specifier_table, NULL, &resolved_id); + if (r < 0) { + log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, name); + return r; + } + } + + /* Verify description */ + if (isempty(description) || streq(description, "-")) + description = mfree(description); + + if (description) { + if (!valid_gecos(description)) { + log_error("[%s:%u] '%s' is not a valid GECOS field.", fname, line, description); + return -EINVAL; + } + } + + /* Verify home */ + if (isempty(home) || streq(home, "-")) + home = mfree(home); + + if (home) { + if (!valid_home(home)) { + log_error("[%s:%u] '%s' is not a valid home directory field.", fname, line, home); + return -EINVAL; + } + } + + switch (action[0]) { + + case ADD_RANGE: + if (resolved_name) { + log_error("[%s:%u] Lines of type 'r' don't take a name field.", fname, line); + return -EINVAL; + } + + if (!resolved_id) { + log_error("[%s:%u] Lines of type 'r' require a ID range in the third field.", fname, line); + return -EINVAL; + } + + if (description) { + log_error("[%s:%u] Lines of type 'r' don't take a GECOS field.", fname, line); + return -EINVAL; + } + + if (home) { + log_error("[%s:%u] Lines of type 'r' don't take a home directory field.", fname, line); + return -EINVAL; + } + + r = uid_range_add_str(&uid_range, &n_uid_range, resolved_id); + if (r < 0) { + log_error("[%s:%u] Invalid UID range %s.", fname, line, resolved_id); + return -EINVAL; + } + + return 0; + + case ADD_MEMBER: { + char **l; + + /* Try to extend an existing member or group item */ + if (!name) { + log_error("[%s:%u] Lines of type 'm' require a user name in the second field.", fname, line); + return -EINVAL; + } + + if (!resolved_id) { + log_error("[%s:%u] Lines of type 'm' require a group name in the third field.", fname, line); + return -EINVAL; + } + + if (!valid_user_group_name(resolved_id)) { + log_error("[%s:%u] '%s' is not a valid user or group name.", fname, line, resolved_id); + return -EINVAL; + } + + if (description) { + log_error("[%s:%u] Lines of type 'm' don't take a GECOS field.", fname, line); + return -EINVAL; + } + + if (home) { + log_error("[%s:%u] Lines of type 'm' don't take a home directory field.", fname, line); + return -EINVAL; + } + + r = hashmap_ensure_allocated(&members, &string_hash_ops); + if (r < 0) + return log_oom(); + + l = hashmap_get(members, resolved_id); + if (l) { + /* A list for this group name already exists, let's append to it */ + r = strv_push(&l, resolved_name); + if (r < 0) + return log_oom(); + + resolved_name = NULL; + + assert_se(hashmap_update(members, resolved_id, l) >= 0); + } else { + /* No list for this group name exists yet, create one */ + + l = new0(char *, 2); + if (!l) + return -ENOMEM; + + l[0] = resolved_name; + l[1] = NULL; + + r = hashmap_put(members, resolved_id, l); + if (r < 0) { + free(l); + return log_oom(); + } + + resolved_id = resolved_name = NULL; + } + + return 0; + } + + case ADD_USER: + if (!name) { + log_error("[%s:%u] Lines of type 'u' require a user name in the second field.", fname, line); + return -EINVAL; + } + + r = hashmap_ensure_allocated(&users, &string_hash_ops); + if (r < 0) + return log_oom(); + + i = new0(Item, 1); + if (!i) + return log_oom(); + + if (resolved_id) { + if (path_is_absolute(resolved_id)) { + i->uid_path = resolved_id; + resolved_id = NULL; + + path_kill_slashes(i->uid_path); + } else { + r = parse_uid(resolved_id, &i->uid); + if (r < 0) { + log_error("Failed to parse UID: %s", id); + return -EBADMSG; + } + + i->uid_set = true; + } + } + + i->description = description; + description = NULL; + + i->home = home; + home = NULL; + + h = users; + break; + + case ADD_GROUP: + if (!name) { + log_error("[%s:%u] Lines of type 'g' require a user name in the second field.", fname, line); + return -EINVAL; + } + + if (description) { + log_error("[%s:%u] Lines of type 'g' don't take a GECOS field.", fname, line); + return -EINVAL; + } + + if (home) { + log_error("[%s:%u] Lines of type 'g' don't take a home directory field.", fname, line); + return -EINVAL; + } + + r = hashmap_ensure_allocated(&groups, &string_hash_ops); + if (r < 0) + return log_oom(); + + i = new0(Item, 1); + if (!i) + return log_oom(); + + if (resolved_id) { + if (path_is_absolute(resolved_id)) { + i->gid_path = resolved_id; + resolved_id = NULL; + + path_kill_slashes(i->gid_path); + } else { + r = parse_gid(resolved_id, &i->gid); + if (r < 0) { + log_error("Failed to parse GID: %s", id); + return -EBADMSG; + } + + i->gid_set = true; + } + } + + h = groups; + break; + + default: + return -EBADMSG; + } + + i->type = action[0]; + i->name = resolved_name; + resolved_name = NULL; + + existing = hashmap_get(h, i->name); + if (existing) { + + /* Two identical items are fine */ + if (!item_equal(existing, i)) + log_warning("Two or more conflicting lines for %s configured, ignoring.", i->name); + + return 0; + } + + r = hashmap_put(h, i->name, i); + if (r < 0) + return log_oom(); + + i = NULL; + return 0; +} + +static int read_config_file(const char *fn, bool ignore_enoent) { + _cleanup_fclose_ FILE *rf = NULL; + FILE *f = NULL; + char line[LINE_MAX]; + unsigned v = 0; + int r = 0; + + assert(fn); + + if (streq(fn, "-")) + f = stdin; + else { + r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &rf); + if (r < 0) { + if (ignore_enoent && r == -ENOENT) + return 0; + + return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn); + } + + f = rf; + } + + FOREACH_LINE(line, f, break) { + char *l; + int k; + + v++; + + l = strstrip(line); + if (*l == '#' || *l == 0) + continue; + + k = parse_line(fn, v, l); + if (k < 0 && r == 0) + r = k; + } + + if (ferror(f)) { + log_error_errno(errno, "Failed to read from file %s: %m", fn); + if (r == 0) + r = -EIO; + } + + return r; +} + +static void free_database(Hashmap *by_name, Hashmap *by_id) { + char *name; + + for (;;) { + name = hashmap_first(by_id); + if (!name) + break; + + hashmap_remove(by_name, name); + + hashmap_steal_first_key(by_id); + free(name); + } + + while ((name = hashmap_steal_first_key(by_name))) + free(name); + + hashmap_free(by_name); + hashmap_free(by_id); +} + +static void help(void) { + printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" + "Creates system user accounts.\n\n" + " -h --help Show this help\n" + " --version Show package version\n" + " --root=PATH Operate on an alternate filesystem root\n" + , program_invocation_short_name); +} + +static int parse_argv(int argc, char *argv[]) { + + enum { + ARG_VERSION = 0x100, + ARG_ROOT, + }; + + static const struct option options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + { "root", required_argument, NULL, ARG_ROOT }, + {} + }; + + int c, r; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) + + switch (c) { + + case 'h': + help(); + return 0; + + case ARG_VERSION: + return version(); + + case ARG_ROOT: + r = parse_path_argument_and_warn(optarg, true, &arg_root); + if (r < 0) + return r; + break; + + case '?': + return -EINVAL; + + default: + assert_not_reached("Unhandled option"); + } + + return 1; +} + +int main(int argc, char *argv[]) { + + _cleanup_close_ int lock = -1; + Iterator iterator; + int r, k; + Item *i; + char *n; + + r = parse_argv(argc, argv); + if (r <= 0) + goto finish; + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + r = mac_selinux_init(); + if (r < 0) { + log_error_errno(r, "SELinux setup failed: %m"); + goto finish; + } + + if (optind < argc) { + int j; + + for (j = optind; j < argc; j++) { + k = read_config_file(argv[j], false); + if (k < 0 && r == 0) + r = k; + } + } else { + _cleanup_strv_free_ char **files = NULL; + char **f; + + r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs); + if (r < 0) { + log_error_errno(r, "Failed to enumerate sysusers.d files: %m"); + goto finish; + } + + STRV_FOREACH(f, files) { + k = read_config_file(*f, true); + if (k < 0 && r == 0) + r = k; + } + } + + if (!uid_range) { + /* Default to default range of 1..SYSTEMD_UID_MAX */ + r = uid_range_add(&uid_range, &n_uid_range, 1, SYSTEM_UID_MAX); + if (r < 0) { + log_oom(); + goto finish; + } + } + + r = add_implicit(); + if (r < 0) + goto finish; + + lock = take_etc_passwd_lock(arg_root); + if (lock < 0) { + log_error_errno(lock, "Failed to take lock: %m"); + goto finish; + } + + r = load_user_database(); + if (r < 0) { + log_error_errno(r, "Failed to load user database: %m"); + goto finish; + } + + r = load_group_database(); + if (r < 0) { + log_error_errno(r, "Failed to read group database: %m"); + goto finish; + } + + HASHMAP_FOREACH(i, groups, iterator) + process_item(i); + + HASHMAP_FOREACH(i, users, iterator) + process_item(i); + + r = write_files(); + if (r < 0) + log_error_errno(r, "Failed to write files: %m"); + +finish: + while ((i = hashmap_steal_first(groups))) + item_free(i); + + while ((i = hashmap_steal_first(users))) + item_free(i); + + while ((n = hashmap_first_key(members))) { + strv_free(hashmap_steal_first(members)); + free(n); + } + + hashmap_free(groups); + hashmap_free(users); + hashmap_free(members); + hashmap_free(todo_uids); + hashmap_free(todo_gids); + + free_database(database_user, database_uid); + free_database(database_group, database_gid); + + free(arg_root); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-sysusers/sysusers.d.xml b/src/grp-initprogs/systemd-sysusers/sysusers.d.xml new file mode 100644 index 0000000000..18ee3800d6 --- /dev/null +++ b/src/grp-initprogs/systemd-sysusers/sysusers.d.xml @@ -0,0 +1,223 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2014 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="sysusers.d" conditional='ENABLE_SYSUSERS' + xmlns:xi="http://www.w3.org/2001/XInclude"> + + <refentryinfo> + <title>sysusers.d</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>sysusers.d</refentrytitle> + <manvolnum>5</manvolnum> + </refmeta> + + <refnamediv> + <refname>sysusers.d</refname> + <refpurpose>Declarative allocation of system users and groups</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>/usr/lib/sysusers.d/*.conf</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><command>systemd-sysusers</command> uses the files from + <filename>sysusers.d</filename> directory to create system users + and groups at package installation or boot time. This tool may be + used to allocate system users and groups only, it is not useful + for creating non-system users and groups, as it accesses + <filename>/etc/passwd</filename> and + <filename>/etc/group</filename> directly, bypassing any more + complex user databases, for example any database involving NIS or + LDAP.</para> + </refsect1> + + <refsect1> + <title>Configuration Format</title> + + <para>Each configuration file shall be named in the style of + <filename><replaceable>package</replaceable>.conf</filename> or + <filename><replaceable>package</replaceable>-<replaceable>part</replaceable>.conf</filename>. + The second variant should be used when it is desirable to make it + easy to override just this part of configuration.</para> + + <para>The file format is one line per user or group containing + name, ID, GECOS field description and home directory:</para> + + <programlisting># Type Name ID GECOS +u httpd 440 "HTTP User" +u authd /usr/bin/authd "Authorization user" +g input - - +m authd input +u root 0 "Superuser" /root</programlisting> + + <refsect2> + <title>Type</title> + + <para>The type consists of a single letter. The following line + types are understood:</para> + + <variablelist> + <varlistentry> + <term><varname>u</varname></term> + <listitem><para>Create a system user and group of the + specified name should they not exist yet. The user's primary + group will be set to the group bearing the same name. The + user's shell will be set to + <filename>/sbin/nologin</filename>, the home directory to + the specified home directory, or <filename>/</filename> if + none is given. The account will be created disabled, so that + logins are not allowed.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>g</varname></term> + <listitem><para>Create a system group of the specified name + should it not exist yet. Note that <varname>u</varname> + implicitly create a matching group. The group will be + created with no password set.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>m</varname></term> + <listitem><para>Add a user to a group. If the user or group + do not exist yet, they will be implicitly + created.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>r</varname></term> + <listitem><para>Add a range of numeric UIDs/GIDs to the pool + to allocate new UIDs and GIDs from. If no line of this type + is specified, the range of UIDs/GIDs is set to some + compiled-in default. Note that both UIDs and GIDs are + allocated from the same pool, in order to ensure that users + and groups of the same name are likely to carry the same + numeric UID and GID.</para></listitem> + </varlistentry> + + </variablelist> + </refsect2> + + <refsect2> + <title>Name</title> + + <para>The name field specifies the user or group name. It should + be shorter than 31 characters and avoid any non-ASCII + characters, and not begin with a numeric character. It is + strongly recommended to pick user and group names that are + unlikely to clash with normal users created by the + administrator. A good scheme to guarantee this is by prefixing + all system and group names with the underscore, and avoiding too + generic names.</para> + + <para>For <varname>m</varname> lines, this field should contain + the user name to add to a group.</para> + + <para>For lines of type <varname>r</varname>, this field should + be set to <literal>-</literal>.</para> + </refsect2> + + <refsect2> + <title>ID</title> + + <para>For <varname>u</varname> and <varname>g</varname>, the + numeric 32-bit UID or GID of the user/group. Do not use IDs 65535 + or 4294967295, as they have special placeholder meanings. + Specify <literal>-</literal> for automatic UID/GID allocation + for the user or group. Alternatively, specify an absolute path + in the file system. In this case, the UID/GID is read from the + path's owner/group. This is useful to create users whose UID/GID + match the owners of pre-existing files (such as SUID or SGID + binaries).</para> + + <para>For <varname>m</varname> lines, this field should contain + the group name to add to a user to.</para> + + <para>For lines of type <varname>r</varname>, this field should + be set to a UID/GID range in the format + <literal>FROM-TO</literal>, where both values are formatted as + decimal ASCII numbers. Alternatively, a single UID/GID may be + specified formatted as decimal ASCII numbers.</para> + </refsect2> + + <refsect2> + <title>GECOS</title> + + <para>A short, descriptive string for users to be created, + enclosed in quotation marks. Note that this field may not + contain colons.</para> + + <para>Only applies to lines of type <varname>u</varname> and + should otherwise be left unset, or be set to + <literal>-</literal>.</para> + </refsect2> + + <refsect2> + <title>Home Directory</title> + + <para>The home directory for a new system user. If omitted, + defaults to the root directory. It is recommended to not + unnecessarily specify home directories for system users, unless + software strictly requires one to be set.</para> + + <para>Only applies to lines of type <varname>u</varname> and + should otherwise be left unset, or be set to + <literal>-</literal>.</para> + </refsect2> + + </refsect1> + + <xi:include href="standard-conf.xml" xpointer="confd" /> + + <refsect1> + <title>Idempotence</title> + + <para>Note that <command>systemd-sysusers</command> will do + nothing if the specified users or groups already exist, so + normally, there is no reason to override + <filename>sysusers.d</filename> vendor configuration, except to + block certain users or groups from being created.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-sysusers</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-tmpfiles/GNUmakefile b/src/grp-initprogs/systemd-tmpfiles/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-tmpfiles/Makefile b/src/grp-initprogs/systemd-tmpfiles/Makefile new file mode 100644 index 0000000000..14da180947 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/Makefile @@ -0,0 +1,88 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_TMPFILES),) +systemd_tmpfiles_SOURCES = \ + src/tmpfiles/tmpfiles.c + +systemd_tmpfiles_CFLAGS = \ + $(ACL_CFLAGS) + +systemd_tmpfiles_LDADD = \ + libsystemd-shared.la \ + $(ACL_LIBS) + +rootbin_PROGRAMS += \ + systemd-tmpfiles + +dist_systemunit_DATA += \ + units/systemd-tmpfiles-clean.timer + +nodist_systemunit_DATA += \ + units/systemd-tmpfiles-setup-dev.service \ + units/systemd-tmpfiles-setup.service \ + units/systemd-tmpfiles-clean.service + +nodist_tmpfiles_DATA = \ + tmpfiles.d/systemd.conf \ + tmpfiles.d/etc.conf + +dist_tmpfiles_DATA = \ + tmpfiles.d/systemd-nologin.conf \ + tmpfiles.d/tmp.conf \ + tmpfiles.d/x11.conf \ + tmpfiles.d/var.conf \ + tmpfiles.d/home.conf \ + tmpfiles.d/systemd-nspawn.conf \ + tmpfiles.d/journal-nocow.conf + +ifneq ($(HAVE_SYSV_COMPAT),) +dist_tmpfiles_DATA += \ + tmpfiles.d/legacy.conf +endif # HAVE_SYSV_COMPAT + +SYSINIT_TARGET_WANTS += \ + systemd-tmpfiles-setup-dev.service \ + systemd-tmpfiles-setup.service + +dist_zshcompletion_data += \ + shell-completion/zsh/_systemd-tmpfiles + +TIMERS_TARGET_WANTS += \ + systemd-tmpfiles-clean.timer + +INSTALL_DIRS += \ + $(tmpfilesdir) \ + $(sysconfdir)/tmpfiles.d +endif # ENABLE_TMPFILES + +EXTRA_DIST += \ + tmpfiles.d/systemd.conf.m4 \ + tmpfiles.d/etc.conf.m4 \ + units/systemd-tmpfiles-setup-dev.service.in \ + units/systemd-tmpfiles-setup.service.in \ + units/systemd-tmpfiles-clean.service.in + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-tmpfiles/etc.tmpfiles.m4 b/src/grp-initprogs/systemd-tmpfiles/etc.tmpfiles.m4 new file mode 100644 index 0000000000..928105ea8d --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/etc.tmpfiles.m4 @@ -0,0 +1,19 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +# See tmpfiles.d(5) for details + +L /etc/os-release - - - - ../usr/lib/os-release +L /etc/localtime - - - - ../usr/share/zoneinfo/UTC +L+ /etc/mtab - - - - ../proc/self/mounts +m4_ifdef(`HAVE_SMACK_RUN_LABEL', +t /etc/mtab - - - - security.SMACK64=_ +)m4_dnl +C /etc/nsswitch.conf - - - - +m4_ifdef(`HAVE_PAM', +C /etc/pam.d - - - - +)m4_dnl diff --git a/src/grp-initprogs/systemd-tmpfiles/home.tmpfiles b/src/grp-initprogs/systemd-tmpfiles/home.tmpfiles new file mode 100644 index 0000000000..9f25b83392 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/home.tmpfiles @@ -0,0 +1,11 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +# See tmpfiles.d(5) for details + +Q /home 0755 - - - +q /srv 0755 - - - diff --git a/src/grp-initprogs/systemd-tmpfiles/legacy.tmpfiles b/src/grp-initprogs/systemd-tmpfiles/legacy.tmpfiles new file mode 100644 index 0000000000..62e2ae0986 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/legacy.tmpfiles @@ -0,0 +1,27 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +# See tmpfiles.d(5) for details + +# These files are considered legacy and are unnecessary on legacy-free +# systems. + +d /run/lock 0755 root root - +L /var/lock - - - - ../run/lock + +# /run/lock/subsys is used for serializing SysV service execution, and +# hence without use on SysV-less systems. + +d /run/lock/subsys 0755 root root - + +# /forcefsck, /fastboot and /forcequotacheck are deprecated in favor of the +# kernel command line options 'fsck.mode=force', 'fsck.mode=skip' and +# 'quotacheck.mode=force' + +r! /forcefsck +r! /fastboot +r! /forcequotacheck diff --git a/src/grp-initprogs/systemd-tmpfiles/systemd-nologin.tmpfiles b/src/grp-initprogs/systemd-tmpfiles/systemd-nologin.tmpfiles new file mode 100644 index 0000000000..a30a8da604 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/systemd-nologin.tmpfiles @@ -0,0 +1,11 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +# See tmpfiles.d(5), systemd-user-session.service(5) and pam_nologin(8). +# This file has special suffix so it is not run by mistake. + +F! /run/nologin 0644 - - - "System is booting up. See pam_nologin(8)" diff --git a/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles-clean.service.in b/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles-clean.service.in new file mode 100644 index 0000000000..133c8c94c4 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles-clean.service.in @@ -0,0 +1,19 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Cleanup of Temporary Directories +Documentation=man:tmpfiles.d(5) man:systemd-tmpfiles(8) +DefaultDependencies=no +Conflicts=shutdown.target +After=local-fs.target time-sync.target +Before=shutdown.target + +[Service] +Type=oneshot +ExecStart=@rootbindir@/systemd-tmpfiles --clean +IOSchedulingClass=idle diff --git a/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles-clean.timer b/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles-clean.timer new file mode 100644 index 0000000000..9975dcfaca --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles-clean.timer @@ -0,0 +1,14 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Daily Cleanup of Temporary Directories +Documentation=man:tmpfiles.d(5) man:systemd-tmpfiles(8) + +[Timer] +OnBootSec=15min +OnUnitActiveSec=1d diff --git a/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles-setup-dev.service.in b/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles-setup-dev.service.in new file mode 100644 index 0000000000..0123a030e4 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles-setup-dev.service.in @@ -0,0 +1,20 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Create Static Device Nodes in /dev +Documentation=man:tmpfiles.d(5) man:systemd-tmpfiles(8) +DefaultDependencies=no +Conflicts=shutdown.target +After=systemd-sysusers.service +Before=sysinit.target local-fs-pre.target systemd-udevd.service shutdown.target +ConditionCapability=CAP_SYS_MODULE + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootbindir@/systemd-tmpfiles --prefix=/dev --create --boot diff --git a/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles-setup.service.in b/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles-setup.service.in new file mode 100644 index 0000000000..e895cda0e6 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles-setup.service.in @@ -0,0 +1,20 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Create Volatile Files and Directories +Documentation=man:tmpfiles.d(5) man:systemd-tmpfiles(8) +DefaultDependencies=no +Conflicts=shutdown.target +After=local-fs.target systemd-sysusers.service +Before=sysinit.target shutdown.target +RefuseManualStop=yes + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootbindir@/systemd-tmpfiles --create --remove --boot --exclude-prefix=/dev diff --git a/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles.completion.zsh b/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles.completion.zsh new file mode 100644 index 0000000000..6ff02e5d98 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles.completion.zsh @@ -0,0 +1,13 @@ +#compdef systemd-tmpfiles + +_arguments \ + {-h,--help}'[Show help]' \ + '--version[Show package version]' \ + '--create[Create, set ownership/permissions based on the config files.]' \ + '--clean[Clean up all files and directories with an age parameter configured.]' \ + '--remove[All files and directories marked with r, R in the configuration files are removed.]' \ + '--boot[Execute actions only safe at boot]' \ + '--prefix=[Only apply rules that apply to paths with the specified prefix.]' \ + '--exclude-prefix=[Ignore rules that apply to paths with the specified prefix.]' \ + '--root=[Operate on an alternate filesystem root]:directory:_directories' \ + '*::files:_files' diff --git a/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles.xml b/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles.xml new file mode 100644 index 0000000000..c1aab51551 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/systemd-tmpfiles.xml @@ -0,0 +1,200 @@ +<?xml version='1.0'?> <!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" + "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + +<!-- + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> + +<refentry id="systemd-tmpfiles" + xmlns:xi="http://www.w3.org/2001/XInclude"> + + <refentryinfo> + <title>systemd-tmpfiles</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-tmpfiles</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-tmpfiles</refname> + <refname>systemd-tmpfiles-setup.service</refname> + <refname>systemd-tmpfiles-setup-dev.service</refname> + <refname>systemd-tmpfiles-clean.service</refname> + <refname>systemd-tmpfiles-clean.timer</refname> + <refpurpose>Creates, deletes and cleans up volatile + and temporary files and directories</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <cmdsynopsis> + <command>systemd-tmpfiles</command> + <arg choice="opt" rep="repeat">OPTIONS</arg> + <arg choice="opt" rep="repeat"><replaceable>CONFIGFILE</replaceable></arg> + </cmdsynopsis> + + <para><filename>systemd-tmpfiles-setup.service</filename></para> + <para><filename>systemd-tmpfiles-setup-dev.service</filename></para> + <para><filename>systemd-tmpfiles-clean.service</filename></para> + <para><filename>systemd-tmpfiles-clean.timer</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><command>systemd-tmpfiles</command> creates, deletes, and + cleans up volatile and temporary files and directories, based on + the configuration file format and location specified in + <citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry>. + </para> + + <para>If invoked with no arguments, it applies all directives from all configuration + files. If one or more absolute filenames are passed on the command line, only the + directives in these files are applied. If <literal>-</literal> is specified instead + of a filename, directives are read from standard input. If only the basename of a + configuration file is specified, all configuration directories as specified in + <citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry> + are searched for a matching file.</para> + </refsect1> + + <refsect1> + <title>Options</title> + + <para>The following options are understood:</para> + + <variablelist> + <varlistentry> + <term><option>--create</option></term> + <listitem><para>If this option is passed, all files and + directories marked with + <varname>f</varname>, + <varname>F</varname>, + <varname>w</varname>, + <varname>d</varname>, + <varname>D</varname>, + <varname>v</varname>, + <varname>p</varname>, + <varname>L</varname>, + <varname>c</varname>, + <varname>b</varname>, + <varname>m</varname> + in the configuration files are created or written to. Files + and directories marked with + <varname>z</varname>, + <varname>Z</varname>, + <varname>t</varname>, + <varname>T</varname>, + <varname>a</varname>, and + <varname>A</varname> have their ownership, access mode and + security labels set. </para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--clean</option></term> + <listitem><para>If this option is passed, all files and + directories with an age parameter configured will be cleaned + up.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--remove</option></term> + <listitem><para>If this option is passed, the contents of + directories marked with <varname>D</varname> or + <varname>R</varname>, and files or directories themselves + marked with <varname>r</varname> or <varname>R</varname> are + removed.</para></listitem> + </varlistentry> + <varlistentry> + <term><option>--boot</option></term> + <listitem><para>Also execute lines with an exclamation mark. + </para></listitem> + </varlistentry> + <varlistentry> + <term><option>--prefix=<replaceable>path</replaceable></option></term> + <listitem><para>Only apply rules with paths that start with + the specified prefix. This option can be specified multiple + times.</para></listitem> + </varlistentry> + <varlistentry> + <term><option>--exclude-prefix=<replaceable>path</replaceable></option></term> + <listitem><para>Ignore rules with paths that start with the + specified prefix. This option can be specified multiple + times.</para></listitem> + </varlistentry> + <varlistentry> + <term><option>--root=<replaceable>root</replaceable></option></term> + <listitem><para>Takes a directory path as an argument. All + paths will be prefixed with the given alternate + <replaceable>root</replaceable> path, including config search + paths. </para></listitem> + </varlistentry> + + <xi:include href="standard-options.xml" xpointer="help" /> + <xi:include href="standard-options.xml" xpointer="version" /> + </variablelist> + + <para>It is possible to combine <option>--create</option>, + <option>--clean</option>, and <option>--remove</option> in one + invocation. For example, during boot the following command line is + executed to ensure that all temporary and volatile directories are + removed and created according to the configuration file:</para> + + <programlisting>systemd-tmpfiles --remove --create</programlisting> + + </refsect1> + + <refsect1> + <title>Unprivileged --cleanup operation</title> + + <para><command>systemd-tmpfiles</command> tries to avoid changing + the access and modification times on the directories it accesses, + which requires <constant>CAP_ADMIN</constant> privileges. When + running as non-root, directories which are checked for files to + clean up will have their access time bumped, which might prevent + their cleanup. + </para> + </refsect1> + + <refsect1> + <title>Exit status</title> + + <para>On success, 0 is returned, a non-zero failure code + otherwise.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>tmpfiles.d</refentrytitle><manvolnum>5</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-tmpfiles/tmp.tmpfiles b/src/grp-initprogs/systemd-tmpfiles/tmp.tmpfiles new file mode 100644 index 0000000000..fe5225d751 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/tmp.tmpfiles @@ -0,0 +1,12 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +# See tmpfiles.d(5) for details + +# Clear tmp directories separately, to make them easier to override +q /tmp 1777 root root 10d +q /var/tmp 1777 root root 30d diff --git a/src/grp-initprogs/systemd-tmpfiles/tmpfiles.c b/src/grp-initprogs/systemd-tmpfiles/tmpfiles.c new file mode 100644 index 0000000000..a371b11734 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/tmpfiles.c @@ -0,0 +1,2343 @@ +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering, Kay Sievers + Copyright 2015 Zbigniew Jędrzejewski-Szmek + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <dirent.h> +#include <errno.h> +#include <fcntl.h> +#include <fnmatch.h> +#include <getopt.h> +#include <glob.h> +#include <limits.h> +#include <stdbool.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/stat.h> +#include <sys/xattr.h> +#include <time.h> +#include <unistd.h> + +#include <linux/fs.h> + +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/btrfs-util.h" +#include "systemd-basic/capability-util.h" +#include "systemd-basic/chattr-util.h" +#include "systemd-basic/conf-files.h" +#include "systemd-basic/copy.h" +#include "systemd-basic/def.h" +#include "systemd-basic/escape.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/fileio.h" +#include "systemd-basic/formats-util.h" +#include "systemd-basic/fs-util.h" +#include "systemd-basic/glob-util.h" +#include "systemd-basic/io-util.h" +#include "systemd-basic/label.h" +#include "systemd-basic/log.h" +#include "systemd-basic/macro.h" +#include "systemd-basic/missing.h" +#include "systemd-basic/mkdir.h" +#include "systemd-basic/mount-util.h" +#include "systemd-basic/parse-util.h" +#include "systemd-basic/path-util.h" +#include "systemd-basic/rm-rf.h" +#include "systemd-basic/selinux-util.h" +#include "systemd-basic/set.h" +#include "systemd-basic/stat-util.h" +#include "systemd-basic/stdio-util.h" +#include "systemd-basic/string-table.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/strv.h" +#include "systemd-basic/umask-util.h" +#include "systemd-basic/user-util.h" +#include "systemd-basic/util.h" +#include "systemd-shared/acl-util.h" +#include "systemd-shared/specifier.h" + +/* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates + * them in the file system. This is intended to be used to create + * properly owned directories beneath /tmp, /var/tmp, /run, which are + * volatile and hence need to be recreated on bootup. */ + +typedef enum ItemType { + /* These ones take file names */ + CREATE_FILE = 'f', + TRUNCATE_FILE = 'F', + CREATE_DIRECTORY = 'd', + TRUNCATE_DIRECTORY = 'D', + CREATE_SUBVOLUME = 'v', + CREATE_SUBVOLUME_INHERIT_QUOTA = 'q', + CREATE_SUBVOLUME_NEW_QUOTA = 'Q', + CREATE_FIFO = 'p', + CREATE_SYMLINK = 'L', + CREATE_CHAR_DEVICE = 'c', + CREATE_BLOCK_DEVICE = 'b', + COPY_FILES = 'C', + + /* These ones take globs */ + WRITE_FILE = 'w', + EMPTY_DIRECTORY = 'e', + SET_XATTR = 't', + RECURSIVE_SET_XATTR = 'T', + SET_ACL = 'a', + RECURSIVE_SET_ACL = 'A', + SET_ATTRIBUTE = 'h', + RECURSIVE_SET_ATTRIBUTE = 'H', + IGNORE_PATH = 'x', + IGNORE_DIRECTORY_PATH = 'X', + REMOVE_PATH = 'r', + RECURSIVE_REMOVE_PATH = 'R', + RELABEL_PATH = 'z', + RECURSIVE_RELABEL_PATH = 'Z', + ADJUST_MODE = 'm', /* legacy, 'z' is identical to this */ +} ItemType; + +typedef struct Item { + ItemType type; + + char *path; + char *argument; + char **xattrs; +#ifdef HAVE_ACL + acl_t acl_access; + acl_t acl_default; +#endif + uid_t uid; + gid_t gid; + mode_t mode; + usec_t age; + + dev_t major_minor; + unsigned attribute_value; + unsigned attribute_mask; + + bool uid_set:1; + bool gid_set:1; + bool mode_set:1; + bool age_set:1; + bool mask_perms:1; + bool attribute_set:1; + + bool keep_first_level:1; + + bool force:1; + + bool done:1; +} Item; + +typedef struct ItemArray { + Item *items; + size_t count; + size_t size; +} ItemArray; + +static bool arg_create = false; +static bool arg_clean = false; +static bool arg_remove = false; +static bool arg_boot = false; + +static char **arg_include_prefixes = NULL; +static char **arg_exclude_prefixes = NULL; +static char *arg_root = NULL; + +static const char conf_file_dirs[] = CONF_PATHS_NULSTR("tmpfiles.d"); + +#define MAX_DEPTH 256 + +static OrderedHashmap *items = NULL, *globs = NULL; +static Set *unix_sockets = NULL; + +static const Specifier specifier_table[] = { + { 'm', specifier_machine_id, NULL }, + { 'b', specifier_boot_id, NULL }, + { 'H', specifier_host_name, NULL }, + { 'v', specifier_kernel_release, NULL }, + {} +}; + +static bool needs_glob(ItemType t) { + return IN_SET(t, + WRITE_FILE, + IGNORE_PATH, + IGNORE_DIRECTORY_PATH, + REMOVE_PATH, + RECURSIVE_REMOVE_PATH, + EMPTY_DIRECTORY, + ADJUST_MODE, + RELABEL_PATH, + RECURSIVE_RELABEL_PATH, + SET_XATTR, + RECURSIVE_SET_XATTR, + SET_ACL, + RECURSIVE_SET_ACL, + SET_ATTRIBUTE, + RECURSIVE_SET_ATTRIBUTE); +} + +static bool takes_ownership(ItemType t) { + return IN_SET(t, + CREATE_FILE, + TRUNCATE_FILE, + CREATE_DIRECTORY, + EMPTY_DIRECTORY, + TRUNCATE_DIRECTORY, + CREATE_SUBVOLUME, + CREATE_SUBVOLUME_INHERIT_QUOTA, + CREATE_SUBVOLUME_NEW_QUOTA, + CREATE_FIFO, + CREATE_SYMLINK, + CREATE_CHAR_DEVICE, + CREATE_BLOCK_DEVICE, + COPY_FILES, + WRITE_FILE, + IGNORE_PATH, + IGNORE_DIRECTORY_PATH, + REMOVE_PATH, + RECURSIVE_REMOVE_PATH); +} + +static struct Item* find_glob(OrderedHashmap *h, const char *match) { + ItemArray *j; + Iterator i; + + ORDERED_HASHMAP_FOREACH(j, h, i) { + unsigned n; + + for (n = 0; n < j->count; n++) { + Item *item = j->items + n; + + if (fnmatch(item->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) + return item; + } + } + + return NULL; +} + +static void load_unix_sockets(void) { + _cleanup_fclose_ FILE *f = NULL; + char line[LINE_MAX]; + + if (unix_sockets) + return; + + /* We maintain a cache of the sockets we found in + * /proc/net/unix to speed things up a little. */ + + unix_sockets = set_new(&string_hash_ops); + if (!unix_sockets) + return; + + f = fopen("/proc/net/unix", "re"); + if (!f) + return; + + /* Skip header */ + if (!fgets(line, sizeof(line), f)) + goto fail; + + for (;;) { + char *p, *s; + int k; + + if (!fgets(line, sizeof(line), f)) + break; + + truncate_nl(line); + + p = strchr(line, ':'); + if (!p) + continue; + + if (strlen(p) < 37) + continue; + + p += 37; + p += strspn(p, WHITESPACE); + p += strcspn(p, WHITESPACE); /* skip one more word */ + p += strspn(p, WHITESPACE); + + if (*p != '/') + continue; + + s = strdup(p); + if (!s) + goto fail; + + path_kill_slashes(s); + + k = set_consume(unix_sockets, s); + if (k < 0 && k != -EEXIST) + goto fail; + } + + return; + +fail: + set_free_free(unix_sockets); + unix_sockets = NULL; +} + +static bool unix_socket_alive(const char *fn) { + assert(fn); + + load_unix_sockets(); + + if (unix_sockets) + return !!set_get(unix_sockets, (char*) fn); + + /* We don't know, so assume yes */ + return true; +} + +static int dir_is_mount_point(DIR *d, const char *subdir) { + + union file_handle_union h = FILE_HANDLE_INIT; + int mount_id_parent, mount_id; + int r_p, r; + + r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0); + if (r_p < 0) + r_p = -errno; + + h.handle.handle_bytes = MAX_HANDLE_SZ; + r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0); + if (r < 0) + r = -errno; + + /* got no handle; make no assumptions, return error */ + if (r_p < 0 && r < 0) + return r_p; + + /* got both handles; if they differ, it is a mount point */ + if (r_p >= 0 && r >= 0) + return mount_id_parent != mount_id; + + /* got only one handle; assume different mount points if one + * of both queries was not supported by the filesystem */ + if (r_p == -ENOSYS || r_p == -EOPNOTSUPP || r == -ENOSYS || r == -EOPNOTSUPP) + return true; + + /* return error */ + if (r_p < 0) + return r_p; + return r; +} + +static DIR* xopendirat_nomod(int dirfd, const char *path) { + DIR *dir; + + dir = xopendirat(dirfd, path, O_NOFOLLOW|O_NOATIME); + if (dir) + return dir; + + log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); + if (errno != EPERM) + return NULL; + + dir = xopendirat(dirfd, path, O_NOFOLLOW); + if (!dir) + log_debug_errno(errno, "Cannot open %sdirectory \"%s\": %m", dirfd == AT_FDCWD ? "" : "sub", path); + + return dir; +} + +static DIR* opendir_nomod(const char *path) { + return xopendirat_nomod(AT_FDCWD, path); +} + +static int dir_cleanup( + Item *i, + const char *p, + DIR *d, + const struct stat *ds, + usec_t cutoff, + dev_t rootdev, + bool mountpoint, + int maxdepth, + bool keep_this_level) { + + struct dirent *dent; + struct timespec times[2]; + bool deleted = false; + int r = 0; + + while ((dent = readdir(d))) { + struct stat s; + usec_t age; + _cleanup_free_ char *sub_path = NULL; + + if (STR_IN_SET(dent->d_name, ".", "..")) + continue; + + if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { + if (errno == ENOENT) + continue; + + /* FUSE, NFS mounts, SELinux might return EACCES */ + if (errno == EACCES) + log_debug_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); + else + log_error_errno(errno, "stat(%s/%s) failed: %m", p, dent->d_name); + r = -errno; + continue; + } + + /* Stay on the same filesystem */ + if (s.st_dev != rootdev) { + log_debug("Ignoring \"%s/%s\": different filesystem.", p, dent->d_name); + continue; + } + + /* Try to detect bind mounts of the same filesystem instance; they + * do not differ in device major/minors. This type of query is not + * supported on all kernels or filesystem types though. */ + if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) { + log_debug("Ignoring \"%s/%s\": different mount of the same filesystem.", + p, dent->d_name); + continue; + } + + /* Do not delete read-only files owned by root */ + if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) { + log_debug("Ignoring \"%s/%s\": read-only and owner by root.", p, dent->d_name); + continue; + } + + sub_path = strjoin(p, "/", dent->d_name, NULL); + if (!sub_path) { + r = log_oom(); + goto finish; + } + + /* Is there an item configured for this path? */ + if (ordered_hashmap_get(items, sub_path)) { + log_debug("Ignoring \"%s\": a separate entry exists.", sub_path); + continue; + } + + if (find_glob(globs, sub_path)) { + log_debug("Ignoring \"%s\": a separate glob exists.", sub_path); + continue; + } + + if (S_ISDIR(s.st_mode)) { + + if (mountpoint && + streq(dent->d_name, "lost+found") && + s.st_uid == 0) { + log_debug("Ignoring \"%s\".", sub_path); + continue; + } + + if (maxdepth <= 0) + log_warning("Reached max depth on \"%s\".", sub_path); + else { + _cleanup_closedir_ DIR *sub_dir; + int q; + + sub_dir = xopendirat_nomod(dirfd(d), dent->d_name); + if (!sub_dir) { + if (errno != ENOENT) + r = log_error_errno(errno, "opendir(%s) failed: %m", sub_path); + + continue; + } + + q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); + if (q < 0) + r = q; + } + + /* Note: if you are wondering why we don't + * support the sticky bit for excluding + * directories from cleaning like we do it for + * other file system objects: well, the sticky + * bit already has a meaning for directories, + * so we don't want to overload that. */ + + if (keep_this_level) { + log_debug("Keeping \"%s\".", sub_path); + continue; + } + + /* Ignore ctime, we change it when deleting */ + age = timespec_load(&s.st_mtim); + if (age >= cutoff) { + char a[FORMAT_TIMESTAMP_MAX]; + /* Follows spelling in stat(1). */ + log_debug("Directory \"%s\": modify time %s is too new.", + sub_path, + format_timestamp_us(a, sizeof(a), age)); + continue; + } + + age = timespec_load(&s.st_atim); + if (age >= cutoff) { + char a[FORMAT_TIMESTAMP_MAX]; + log_debug("Directory \"%s\": access time %s is too new.", + sub_path, + format_timestamp_us(a, sizeof(a), age)); + continue; + } + + log_debug("Removing directory \"%s\".", sub_path); + if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) + if (errno != ENOENT && errno != ENOTEMPTY) { + log_error_errno(errno, "rmdir(%s): %m", sub_path); + r = -errno; + } + + } else { + /* Skip files for which the sticky bit is + * set. These are semantics we define, and are + * unknown elsewhere. See XDG_RUNTIME_DIR + * specification for details. */ + if (s.st_mode & S_ISVTX) { + log_debug("Skipping \"%s\": sticky bit set.", sub_path); + continue; + } + + if (mountpoint && S_ISREG(s.st_mode)) + if (s.st_uid == 0 && STR_IN_SET(dent->d_name, + ".journal", + "aquota.user", + "aquota.group")) { + log_debug("Skipping \"%s\".", sub_path); + continue; + } + + /* Ignore sockets that are listed in /proc/net/unix */ + if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) { + log_debug("Skipping \"%s\": live socket.", sub_path); + continue; + } + + /* Ignore device nodes */ + if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) { + log_debug("Skipping \"%s\": a device.", sub_path); + continue; + } + + /* Keep files on this level around if this is + * requested */ + if (keep_this_level) { + log_debug("Keeping \"%s\".", sub_path); + continue; + } + + age = timespec_load(&s.st_mtim); + if (age >= cutoff) { + char a[FORMAT_TIMESTAMP_MAX]; + /* Follows spelling in stat(1). */ + log_debug("File \"%s\": modify time %s is too new.", + sub_path, + format_timestamp_us(a, sizeof(a), age)); + continue; + } + + age = timespec_load(&s.st_atim); + if (age >= cutoff) { + char a[FORMAT_TIMESTAMP_MAX]; + log_debug("File \"%s\": access time %s is too new.", + sub_path, + format_timestamp_us(a, sizeof(a), age)); + continue; + } + + age = timespec_load(&s.st_ctim); + if (age >= cutoff) { + char a[FORMAT_TIMESTAMP_MAX]; + log_debug("File \"%s\": change time %s is too new.", + sub_path, + format_timestamp_us(a, sizeof(a), age)); + continue; + } + + log_debug("unlink \"%s\"", sub_path); + + if (unlinkat(dirfd(d), dent->d_name, 0) < 0) + if (errno != ENOENT) + r = log_error_errno(errno, "unlink(%s): %m", sub_path); + + deleted = true; + } + } + +finish: + if (deleted) { + usec_t age1, age2; + char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; + + /* Restore original directory timestamps */ + times[0] = ds->st_atim; + times[1] = ds->st_mtim; + + age1 = timespec_load(&ds->st_atim); + age2 = timespec_load(&ds->st_mtim); + log_debug("Restoring access and modification time on \"%s\": %s, %s", + p, + format_timestamp_us(a, sizeof(a), age1), + format_timestamp_us(b, sizeof(b), age2)); + if (futimens(dirfd(d), times) < 0) + log_error_errno(errno, "utimensat(%s): %m", p); + } + + return r; +} + +static int path_set_perms(Item *i, const char *path) { + _cleanup_close_ int fd = -1; + struct stat st; + + assert(i); + assert(path); + + /* We open the file with O_PATH here, to make the operation + * somewhat atomic. Also there's unfortunately no fchmodat() + * with AT_SYMLINK_NOFOLLOW, hence we emulate it here via + * O_PATH. */ + + fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); + if (fd < 0) + return log_error_errno(errno, "Adjusting owner and mode for %s failed: %m", path); + + if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) + return log_error_errno(errno, "Failed to fstat() file %s: %m", path); + + if (S_ISLNK(st.st_mode)) + log_debug("Skipping mode an owner fix for symlink %s.", path); + else { + char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; + xsprintf(fn, "/proc/self/fd/%i", fd); + + /* not using i->path directly because it may be a glob */ + if (i->mode_set) { + mode_t m = i->mode; + + if (i->mask_perms) { + if (!(st.st_mode & 0111)) + m &= ~0111; + if (!(st.st_mode & 0222)) + m &= ~0222; + if (!(st.st_mode & 0444)) + m &= ~0444; + if (!S_ISDIR(st.st_mode)) + m &= ~07000; /* remove sticky/sgid/suid bit, unless directory */ + } + + if (m == (st.st_mode & 07777)) + log_debug("\"%s\" has right mode %o", path, st.st_mode); + else { + log_debug("chmod \"%s\" to mode %o", path, m); + if (chmod(fn, m) < 0) + return log_error_errno(errno, "chmod(%s) failed: %m", path); + } + } + + if ((i->uid != st.st_uid || i->gid != st.st_gid) && + (i->uid_set || i->gid_set)) { + log_debug("chown \"%s\" to "UID_FMT"."GID_FMT, + path, + i->uid_set ? i->uid : UID_INVALID, + i->gid_set ? i->gid : GID_INVALID); + if (chown(fn, + i->uid_set ? i->uid : UID_INVALID, + i->gid_set ? i->gid : GID_INVALID) < 0) + return log_error_errno(errno, "chown(%s) failed: %m", path); + } + } + + fd = safe_close(fd); + + return label_fix(path, false, false); +} + +static int parse_xattrs_from_arg(Item *i) { + const char *p; + int r; + + assert(i); + assert(i->argument); + + p = i->argument; + + for (;;) { + _cleanup_free_ char *name = NULL, *value = NULL, *xattr = NULL, *xattr_replaced = NULL; + + r = extract_first_word(&p, &xattr, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE); + if (r < 0) + log_warning_errno(r, "Failed to parse extended attribute '%s', ignoring: %m", p); + if (r <= 0) + break; + + r = specifier_printf(xattr, specifier_table, NULL, &xattr_replaced); + if (r < 0) + return log_error_errno(r, "Failed to replace specifiers in extended attribute '%s': %m", xattr); + + r = split_pair(xattr_replaced, "=", &name, &value); + if (r < 0) { + log_warning_errno(r, "Failed to parse extended attribute, ignoring: %s", xattr); + continue; + } + + if (isempty(name) || isempty(value)) { + log_warning("Malformed extended attribute found, ignoring: %s", xattr); + continue; + } + + if (strv_push_pair(&i->xattrs, name, value) < 0) + return log_oom(); + + name = value = NULL; + } + + return 0; +} + +static int path_set_xattrs(Item *i, const char *path) { + char **name, **value; + + assert(i); + assert(path); + + STRV_FOREACH_PAIR(name, value, i->xattrs) { + int n; + + n = strlen(*value); + log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path); + if (lsetxattr(path, *name, *value, n, 0) < 0) { + log_error("Setting extended attribute %s=%s on %s failed: %m", *name, *value, path); + return -errno; + } + } + return 0; +} + +static int parse_acls_from_arg(Item *item) { +#ifdef HAVE_ACL + int r; + + assert(item); + + /* If force (= modify) is set, we will not modify the acl + * afterwards, so the mask can be added now if necessary. */ + + r = parse_acl(item->argument, &item->acl_access, &item->acl_default, !item->force); + if (r < 0) + log_warning_errno(r, "Failed to parse ACL \"%s\": %m. Ignoring", item->argument); +#else + log_warning_errno(ENOSYS, "ACLs are not supported. Ignoring"); +#endif + + return 0; +} + +#ifdef HAVE_ACL +static int path_set_acl(const char *path, const char *pretty, acl_type_t type, acl_t acl, bool modify) { + _cleanup_(acl_free_charpp) char *t = NULL; + _cleanup_(acl_freep) acl_t dup = NULL; + int r; + + /* Returns 0 for success, positive error if already warned, + * negative error otherwise. */ + + if (modify) { + r = acls_for_file(path, type, acl, &dup); + if (r < 0) + return r; + + r = calc_acl_mask_if_needed(&dup); + if (r < 0) + return r; + } else { + dup = acl_dup(acl); + if (!dup) + return -errno; + + /* the mask was already added earlier if needed */ + } + + r = add_base_acls_if_needed(&dup, path); + if (r < 0) + return r; + + t = acl_to_any_text(dup, NULL, ',', TEXT_ABBREVIATE); + log_debug("Setting %s ACL %s on %s.", + type == ACL_TYPE_ACCESS ? "access" : "default", + strna(t), pretty); + + r = acl_set_file(path, type, dup); + if (r < 0) + /* Return positive to indicate we already warned */ + return -log_error_errno(errno, + "Setting %s ACL \"%s\" on %s failed: %m", + type == ACL_TYPE_ACCESS ? "access" : "default", + strna(t), pretty); + + return 0; +} +#endif + +static int path_set_acls(Item *item, const char *path) { + int r = 0; +#ifdef HAVE_ACL + char fn[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int)]; + _cleanup_close_ int fd = -1; + struct stat st; + + assert(item); + assert(path); + + fd = open(path, O_NOFOLLOW|O_CLOEXEC|O_PATH); + if (fd < 0) + return log_error_errno(errno, "Adjusting ACL of %s failed: %m", path); + + if (fstatat(fd, "", &st, AT_EMPTY_PATH) < 0) + return log_error_errno(errno, "Failed to fstat() file %s: %m", path); + + if (S_ISLNK(st.st_mode)) { + log_debug("Skipping ACL fix for symlink %s.", path); + return 0; + } + + xsprintf(fn, "/proc/self/fd/%i", fd); + + if (item->acl_access) + r = path_set_acl(fn, path, ACL_TYPE_ACCESS, item->acl_access, item->force); + + if (r == 0 && item->acl_default) + r = path_set_acl(fn, path, ACL_TYPE_DEFAULT, item->acl_default, item->force); + + if (r > 0) + return -r; /* already warned */ + else if (r == -EOPNOTSUPP) { + log_debug_errno(r, "ACLs not supported by file system at %s", path); + return 0; + } else if (r < 0) + log_error_errno(r, "ACL operation on \"%s\" failed: %m", path); +#endif + return r; +} + +#define ATTRIBUTES_ALL \ + (FS_NOATIME_FL | \ + FS_SYNC_FL | \ + FS_DIRSYNC_FL | \ + FS_APPEND_FL | \ + FS_COMPR_FL | \ + FS_NODUMP_FL | \ + FS_EXTENT_FL | \ + FS_IMMUTABLE_FL | \ + FS_JOURNAL_DATA_FL | \ + FS_SECRM_FL | \ + FS_UNRM_FL | \ + FS_NOTAIL_FL | \ + FS_TOPDIR_FL | \ + FS_NOCOW_FL) + +static int parse_attribute_from_arg(Item *item) { + + static const struct { + char character; + unsigned value; + } attributes[] = { + { 'A', FS_NOATIME_FL }, /* do not update atime */ + { 'S', FS_SYNC_FL }, /* Synchronous updates */ + { 'D', FS_DIRSYNC_FL }, /* dirsync behaviour (directories only) */ + { 'a', FS_APPEND_FL }, /* writes to file may only append */ + { 'c', FS_COMPR_FL }, /* Compress file */ + { 'd', FS_NODUMP_FL }, /* do not dump file */ + { 'e', FS_EXTENT_FL }, /* Extents */ + { 'i', FS_IMMUTABLE_FL }, /* Immutable file */ + { 'j', FS_JOURNAL_DATA_FL }, /* Reserved for ext3 */ + { 's', FS_SECRM_FL }, /* Secure deletion */ + { 'u', FS_UNRM_FL }, /* Undelete */ + { 't', FS_NOTAIL_FL }, /* file tail should not be merged */ + { 'T', FS_TOPDIR_FL }, /* Top of directory hierarchies*/ + { 'C', FS_NOCOW_FL }, /* Do not cow file */ + }; + + enum { + MODE_ADD, + MODE_DEL, + MODE_SET + } mode = MODE_ADD; + + unsigned value = 0, mask = 0; + const char *p; + + assert(item); + + p = item->argument; + if (p) { + if (*p == '+') { + mode = MODE_ADD; + p++; + } else if (*p == '-') { + mode = MODE_DEL; + p++; + } else if (*p == '=') { + mode = MODE_SET; + p++; + } + } + + if (isempty(p) && mode != MODE_SET) { + log_error("Setting file attribute on '%s' needs an attribute specification.", item->path); + return -EINVAL; + } + + for (; p && *p ; p++) { + unsigned i, v; + + for (i = 0; i < ELEMENTSOF(attributes); i++) + if (*p == attributes[i].character) + break; + + if (i >= ELEMENTSOF(attributes)) { + log_error("Unknown file attribute '%c' on '%s'.", *p, item->path); + return -EINVAL; + } + + v = attributes[i].value; + + SET_FLAG(value, v, (mode == MODE_ADD || mode == MODE_SET)); + + mask |= v; + } + + if (mode == MODE_SET) + mask |= ATTRIBUTES_ALL; + + assert(mask != 0); + + item->attribute_mask = mask; + item->attribute_value = value; + item->attribute_set = true; + + return 0; +} + +static int path_set_attribute(Item *item, const char *path) { + _cleanup_close_ int fd = -1; + struct stat st; + unsigned f; + int r; + + if (!item->attribute_set || item->attribute_mask == 0) + return 0; + + fd = open(path, O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_NOATIME|O_NOFOLLOW); + if (fd < 0) { + if (errno == ELOOP) + return log_error_errno(errno, "Skipping file attributes adjustment on symlink %s.", path); + + return log_error_errno(errno, "Cannot open '%s': %m", path); + } + + if (fstat(fd, &st) < 0) + return log_error_errno(errno, "Cannot stat '%s': %m", path); + + /* Issuing the file attribute ioctls on device nodes is not + * safe, as that will be delivered to the drivers, not the + * file system containing the device node. */ + if (!S_ISREG(st.st_mode) && !S_ISDIR(st.st_mode)) { + log_error("Setting file flags is only supported on regular files and directories, cannot set on '%s'.", path); + return -EINVAL; + } + + f = item->attribute_value & item->attribute_mask; + + /* Mask away directory-specific flags */ + if (!S_ISDIR(st.st_mode)) + f &= ~FS_DIRSYNC_FL; + + r = chattr_fd(fd, f, item->attribute_mask); + if (r < 0) + log_full_errno(r == -ENOTTY ? LOG_DEBUG : LOG_WARNING, + r, + "Cannot set file attribute for '%s', value=0x%08x, mask=0x%08x: %m", + path, item->attribute_value, item->attribute_mask); + + return 0; +} + +static int write_one_file(Item *i, const char *path) { + _cleanup_close_ int fd = -1; + int flags, r = 0; + struct stat st; + + assert(i); + assert(path); + + flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND|O_NOFOLLOW : + i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC|O_NOFOLLOW : 0; + + RUN_WITH_UMASK(0000) { + mac_selinux_create_file_prepare(path, S_IFREG); + fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY, i->mode); + mac_selinux_create_file_clear(); + } + + if (fd < 0) { + if (i->type == WRITE_FILE && errno == ENOENT) { + log_debug_errno(errno, "Not writing \"%s\": %m", path); + return 0; + } + + r = -errno; + if (!i->argument && errno == EROFS && stat(path, &st) == 0 && + (i->type == CREATE_FILE || st.st_size == 0)) + goto check_mode; + + return log_error_errno(r, "Failed to create file %s: %m", path); + } + + if (i->argument) { + _cleanup_free_ char *unescaped = NULL, *replaced = NULL; + + log_debug("%s to \"%s\".", i->type == CREATE_FILE ? "Appending" : "Writing", path); + + r = cunescape(i->argument, 0, &unescaped); + if (r < 0) + return log_error_errno(r, "Failed to unescape parameter to write: %s", i->argument); + + r = specifier_printf(unescaped, specifier_table, NULL, &replaced); + if (r < 0) + return log_error_errno(r, "Failed to replace specifiers in parameter to write '%s': %m", unescaped); + + r = loop_write(fd, replaced, strlen(replaced), false); + if (r < 0) + return log_error_errno(r, "Failed to write file \"%s\": %m", path); + } else + log_debug("\"%s\" has been created.", path); + + fd = safe_close(fd); + + if (stat(path, &st) < 0) + return log_error_errno(errno, "stat(%s) failed: %m", path); + + check_mode: + if (!S_ISREG(st.st_mode)) { + log_error("%s is not a file.", path); + return -EEXIST; + } + + r = path_set_perms(i, path); + if (r < 0) + return r; + + return 0; +} + +typedef int (*action_t)(Item *, const char *); + +static int item_do_children(Item *i, const char *path, action_t action) { + _cleanup_closedir_ DIR *d; + int r = 0; + + assert(i); + assert(path); + + /* This returns the first error we run into, but nevertheless + * tries to go on */ + + d = opendir_nomod(path); + if (!d) + return errno == ENOENT || errno == ENOTDIR ? 0 : -errno; + + for (;;) { + _cleanup_free_ char *p = NULL; + struct dirent *de; + int q; + + errno = 0; + de = readdir(d); + if (!de) { + if (errno > 0 && r == 0) + r = -errno; + + break; + } + + if (STR_IN_SET(de->d_name, ".", "..")) + continue; + + p = strjoin(path, "/", de->d_name, NULL); + if (!p) + return -ENOMEM; + + q = action(i, p); + if (q < 0 && q != -ENOENT && r == 0) + r = q; + + if (IN_SET(de->d_type, DT_UNKNOWN, DT_DIR)) { + q = item_do_children(i, p, action); + if (q < 0 && r == 0) + r = q; + } + } + + return r; +} + +static int glob_item(Item *i, action_t action, bool recursive) { + _cleanup_globfree_ glob_t g = { + .gl_closedir = (void (*)(void *)) closedir, + .gl_readdir = (struct dirent *(*)(void *)) readdir, + .gl_opendir = (void *(*)(const char *)) opendir_nomod, + .gl_lstat = lstat, + .gl_stat = stat, + }; + int r = 0, k; + char **fn; + + errno = 0; + k = glob(i->path, GLOB_NOSORT|GLOB_BRACE|GLOB_ALTDIRFUNC, NULL, &g); + if (k != 0 && k != GLOB_NOMATCH) + return log_error_errno(errno ?: EIO, "glob(%s) failed: %m", i->path); + + STRV_FOREACH(fn, g.gl_pathv) { + k = action(i, *fn); + if (k < 0 && r == 0) + r = k; + + if (recursive) { + k = item_do_children(i, *fn, action); + if (k < 0 && r == 0) + r = k; + } + } + + return r; +} + +typedef enum { + CREATION_NORMAL, + CREATION_EXISTING, + CREATION_FORCE, + _CREATION_MODE_MAX, + _CREATION_MODE_INVALID = -1 +} CreationMode; + +static const char *creation_mode_verb_table[_CREATION_MODE_MAX] = { + [CREATION_NORMAL] = "Created", + [CREATION_EXISTING] = "Found existing", + [CREATION_FORCE] = "Created replacement", +}; + +DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(creation_mode_verb, CreationMode); + +static int create_item(Item *i) { + _cleanup_free_ char *resolved = NULL; + struct stat st; + int r = 0; + int q = 0; + CreationMode creation; + + assert(i); + + log_debug("Running create action for entry %c %s", (char) i->type, i->path); + + switch (i->type) { + + case IGNORE_PATH: + case IGNORE_DIRECTORY_PATH: + case REMOVE_PATH: + case RECURSIVE_REMOVE_PATH: + return 0; + + case CREATE_FILE: + case TRUNCATE_FILE: + r = write_one_file(i, i->path); + if (r < 0) + return r; + break; + + case COPY_FILES: { + r = specifier_printf(i->argument, specifier_table, NULL, &resolved); + if (r < 0) + return log_error_errno(r, "Failed to substitute specifiers in copy source %s: %m", i->argument); + + log_debug("Copying tree \"%s\" to \"%s\".", resolved, i->path); + r = copy_tree(resolved, i->path, false); + + if (r == -EROFS && stat(i->path, &st) == 0) + r = -EEXIST; + + if (r < 0) { + struct stat a, b; + + if (r != -EEXIST) + return log_error_errno(r, "Failed to copy files to %s: %m", i->path); + + if (stat(resolved, &a) < 0) + return log_error_errno(errno, "stat(%s) failed: %m", resolved); + + if (stat(i->path, &b) < 0) + return log_error_errno(errno, "stat(%s) failed: %m", i->path); + + if ((a.st_mode ^ b.st_mode) & S_IFMT) { + log_debug("Can't copy to %s, file exists already and is of different type", i->path); + return 0; + } + } + + r = path_set_perms(i, i->path); + if (r < 0) + return r; + + break; + + case WRITE_FILE: + r = glob_item(i, write_one_file, false); + if (r < 0) + return r; + + break; + + case CREATE_DIRECTORY: + case TRUNCATE_DIRECTORY: + case CREATE_SUBVOLUME: + case CREATE_SUBVOLUME_INHERIT_QUOTA: + case CREATE_SUBVOLUME_NEW_QUOTA: + RUN_WITH_UMASK(0000) + mkdir_parents_label(i->path, 0755); + + if (IN_SET(i->type, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) { + + if (btrfs_is_subvol(isempty(arg_root) ? "/" : arg_root) <= 0) + + /* Don't create a subvolume unless the + * root directory is one, too. We do + * this under the assumption that if + * the root directory is just a plain + * directory (i.e. very light-weight), + * we shouldn't try to split it up + * into subvolumes (i.e. more + * heavy-weight). Thus, chroot() + * environments and suchlike will get + * a full brtfs subvolume set up below + * their tree only if they + * specifically set up a btrfs + * subvolume for the root dir too. */ + + r = -ENOTTY; + else { + RUN_WITH_UMASK((~i->mode) & 0777) + r = btrfs_subvol_make(i->path); + } + } else + r = 0; + + if (IN_SET(i->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY) || r == -ENOTTY) + RUN_WITH_UMASK(0000) + r = mkdir_label(i->path, i->mode); + + if (r < 0) { + int k; + + if (r != -EEXIST && r != -EROFS) + return log_error_errno(r, "Failed to create directory or subvolume \"%s\": %m", i->path); + + k = is_dir(i->path, false); + if (k == -ENOENT && r == -EROFS) + return log_error_errno(r, "%s does not exist and cannot be created as the file system is read-only.", i->path); + if (k < 0) + return log_error_errno(k, "Failed to check if %s exists: %m", i->path); + if (!k) { + log_warning("\"%s\" already exists and is not a directory.", i->path); + return 0; + } + + creation = CREATION_EXISTING; + } else + creation = CREATION_NORMAL; + + log_debug("%s directory \"%s\".", creation_mode_verb_to_string(creation), i->path); + + if (IN_SET(i->type, CREATE_SUBVOLUME_NEW_QUOTA, CREATE_SUBVOLUME_INHERIT_QUOTA)) { + r = btrfs_subvol_auto_qgroup(i->path, 0, i->type == CREATE_SUBVOLUME_NEW_QUOTA); + if (r == -ENOTTY) + log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (unsupported fs or dir not a subvolume): %m", i->path); + else if (r == -EROFS) + log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (fs is read-only).", i->path); + else if (r == -ENOPROTOOPT) + log_debug_errno(r, "Couldn't adjust quota for subvolume \"%s\" (quota support is disabled).", i->path); + else if (r < 0) + q = log_error_errno(r, "Failed to adjust quota for subvolume \"%s\": %m", i->path); + else if (r > 0) + log_debug("Adjusted quota for subvolume \"%s\".", i->path); + else if (r == 0) + log_debug("Quota for subvolume \"%s\" already in place, no change made.", i->path); + } + + /* fall through */ + + case EMPTY_DIRECTORY: + r = path_set_perms(i, i->path); + if (q < 0) + return q; + if (r < 0) + return r; + + break; + + case CREATE_FIFO: + RUN_WITH_UMASK(0000) { + mac_selinux_create_file_prepare(i->path, S_IFIFO); + r = mkfifo(i->path, i->mode); + mac_selinux_create_file_clear(); + } + + if (r < 0) { + if (errno != EEXIST) + return log_error_errno(errno, "Failed to create fifo %s: %m", i->path); + + if (lstat(i->path, &st) < 0) + return log_error_errno(errno, "stat(%s) failed: %m", i->path); + + if (!S_ISFIFO(st.st_mode)) { + + if (i->force) { + RUN_WITH_UMASK(0000) { + mac_selinux_create_file_prepare(i->path, S_IFIFO); + r = mkfifo_atomic(i->path, i->mode); + mac_selinux_create_file_clear(); + } + + if (r < 0) + return log_error_errno(r, "Failed to create fifo %s: %m", i->path); + creation = CREATION_FORCE; + } else { + log_warning("\"%s\" already exists and is not a fifo.", i->path); + return 0; + } + } else + creation = CREATION_EXISTING; + } else + creation = CREATION_NORMAL; + log_debug("%s fifo \"%s\".", creation_mode_verb_to_string(creation), i->path); + + r = path_set_perms(i, i->path); + if (r < 0) + return r; + + break; + } + + case CREATE_SYMLINK: { + r = specifier_printf(i->argument, specifier_table, NULL, &resolved); + if (r < 0) + return log_error_errno(r, "Failed to substitute specifiers in symlink target %s: %m", i->argument); + + mac_selinux_create_file_prepare(i->path, S_IFLNK); + r = symlink(resolved, i->path); + mac_selinux_create_file_clear(); + + if (r < 0) { + _cleanup_free_ char *x = NULL; + + if (errno != EEXIST) + return log_error_errno(errno, "symlink(%s, %s) failed: %m", resolved, i->path); + + r = readlink_malloc(i->path, &x); + if (r < 0 || !streq(resolved, x)) { + + if (i->force) { + mac_selinux_create_file_prepare(i->path, S_IFLNK); + r = symlink_atomic(resolved, i->path); + mac_selinux_create_file_clear(); + + if (r < 0) + return log_error_errno(r, "symlink(%s, %s) failed: %m", resolved, i->path); + + creation = CREATION_FORCE; + } else { + log_debug("\"%s\" is not a symlink or does not point to the correct path.", i->path); + return 0; + } + } else + creation = CREATION_EXISTING; + } else + + creation = CREATION_NORMAL; + log_debug("%s symlink \"%s\".", creation_mode_verb_to_string(creation), i->path); + break; + } + + case CREATE_BLOCK_DEVICE: + case CREATE_CHAR_DEVICE: { + mode_t file_type; + + if (have_effective_cap(CAP_MKNOD) == 0) { + /* In a container we lack CAP_MKNOD. We + shouldn't attempt to create the device node in + that case to avoid noise, and we don't support + virtualized devices in containers anyway. */ + + log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); + return 0; + } + + file_type = i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR; + + RUN_WITH_UMASK(0000) { + mac_selinux_create_file_prepare(i->path, file_type); + r = mknod(i->path, i->mode | file_type, i->major_minor); + mac_selinux_create_file_clear(); + } + + if (r < 0) { + if (errno == EPERM) { + log_debug("We lack permissions, possibly because of cgroup configuration; " + "skipping creation of device node %s.", i->path); + return 0; + } + + if (errno != EEXIST) + return log_error_errno(errno, "Failed to create device node %s: %m", i->path); + + if (lstat(i->path, &st) < 0) + return log_error_errno(errno, "stat(%s) failed: %m", i->path); + + if ((st.st_mode & S_IFMT) != file_type) { + + if (i->force) { + + RUN_WITH_UMASK(0000) { + mac_selinux_create_file_prepare(i->path, file_type); + r = mknod_atomic(i->path, i->mode | file_type, i->major_minor); + mac_selinux_create_file_clear(); + } + + if (r < 0) + return log_error_errno(r, "Failed to create device node \"%s\": %m", i->path); + creation = CREATION_FORCE; + } else { + log_debug("%s is not a device node.", i->path); + return 0; + } + } else + creation = CREATION_EXISTING; + } else + creation = CREATION_NORMAL; + + log_debug("%s %s device node \"%s\" %u:%u.", + creation_mode_verb_to_string(creation), + i->type == CREATE_BLOCK_DEVICE ? "block" : "char", + i->path, major(i->mode), minor(i->mode)); + + r = path_set_perms(i, i->path); + if (r < 0) + return r; + + break; + } + + case ADJUST_MODE: + case RELABEL_PATH: + r = glob_item(i, path_set_perms, false); + if (r < 0) + return r; + break; + + case RECURSIVE_RELABEL_PATH: + r = glob_item(i, path_set_perms, true); + if (r < 0) + return r; + break; + + case SET_XATTR: + r = glob_item(i, path_set_xattrs, false); + if (r < 0) + return r; + break; + + case RECURSIVE_SET_XATTR: + r = glob_item(i, path_set_xattrs, true); + if (r < 0) + return r; + break; + + case SET_ACL: + r = glob_item(i, path_set_acls, false); + if (r < 0) + return r; + break; + + case RECURSIVE_SET_ACL: + r = glob_item(i, path_set_acls, true); + if (r < 0) + return r; + break; + + case SET_ATTRIBUTE: + r = glob_item(i, path_set_attribute, false); + if (r < 0) + return r; + break; + + case RECURSIVE_SET_ATTRIBUTE: + r = glob_item(i, path_set_attribute, true); + if (r < 0) + return r; + break; + } + + return 0; +} + +static int remove_item_instance(Item *i, const char *instance) { + int r; + + assert(i); + + switch (i->type) { + + case REMOVE_PATH: + if (remove(instance) < 0 && errno != ENOENT) + return log_error_errno(errno, "rm(%s): %m", instance); + + break; + + case TRUNCATE_DIRECTORY: + case RECURSIVE_REMOVE_PATH: + /* FIXME: we probably should use dir_cleanup() here + * instead of rm_rf() so that 'x' is honoured. */ + log_debug("rm -rf \"%s\"", instance); + r = rm_rf(instance, (i->type == RECURSIVE_REMOVE_PATH ? REMOVE_ROOT|REMOVE_SUBVOLUME : 0) | REMOVE_PHYSICAL); + if (r < 0 && r != -ENOENT) + return log_error_errno(r, "rm_rf(%s): %m", instance); + + break; + + default: + assert_not_reached("wut?"); + } + + return 0; +} + +static int remove_item(Item *i) { + assert(i); + + log_debug("Running remove action for entry %c %s", (char) i->type, i->path); + + switch (i->type) { + + case REMOVE_PATH: + case TRUNCATE_DIRECTORY: + case RECURSIVE_REMOVE_PATH: + return glob_item(i, remove_item_instance, false); + + default: + return 0; + } +} + +static int clean_item_instance(Item *i, const char* instance) { + _cleanup_closedir_ DIR *d = NULL; + struct stat s, ps; + bool mountpoint; + usec_t cutoff, n; + char timestamp[FORMAT_TIMESTAMP_MAX]; + + assert(i); + + if (!i->age_set) + return 0; + + n = now(CLOCK_REALTIME); + if (n < i->age) + return 0; + + cutoff = n - i->age; + + d = opendir_nomod(instance); + if (!d) { + if (IN_SET(errno, ENOENT, ENOTDIR)) { + log_debug_errno(errno, "Directory \"%s\": %m", instance); + return 0; + } + + return log_error_errno(errno, "Failed to open directory %s: %m", instance); + } + + if (fstat(dirfd(d), &s) < 0) + return log_error_errno(errno, "stat(%s) failed: %m", i->path); + + if (!S_ISDIR(s.st_mode)) { + log_error("%s is not a directory.", i->path); + return -ENOTDIR; + } + + if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) + return log_error_errno(errno, "stat(%s/..) failed: %m", i->path); + + mountpoint = s.st_dev != ps.st_dev || s.st_ino == ps.st_ino; + + log_debug("Cleanup threshold for %s \"%s\" is %s", + mountpoint ? "mount point" : "directory", + instance, + format_timestamp_us(timestamp, sizeof(timestamp), cutoff)); + + return dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, + MAX_DEPTH, i->keep_first_level); +} + +static int clean_item(Item *i) { + assert(i); + + log_debug("Running clean action for entry %c %s", (char) i->type, i->path); + + switch (i->type) { + case CREATE_DIRECTORY: + case CREATE_SUBVOLUME: + case CREATE_SUBVOLUME_INHERIT_QUOTA: + case CREATE_SUBVOLUME_NEW_QUOTA: + case EMPTY_DIRECTORY: + case TRUNCATE_DIRECTORY: + case IGNORE_PATH: + case COPY_FILES: + clean_item_instance(i, i->path); + return 0; + case IGNORE_DIRECTORY_PATH: + return glob_item(i, clean_item_instance, false); + default: + return 0; + } +} + +static int process_item_array(ItemArray *array); + +static int process_item(Item *i) { + int r, q, p, t = 0; + _cleanup_free_ char *prefix = NULL; + + assert(i); + + if (i->done) + return 0; + + i->done = true; + + prefix = malloc(strlen(i->path) + 1); + if (!prefix) + return log_oom(); + + PATH_FOREACH_PREFIX(prefix, i->path) { + ItemArray *j; + + j = ordered_hashmap_get(items, prefix); + if (j) { + int s; + + s = process_item_array(j); + if (s < 0 && t == 0) + t = s; + } + } + + r = arg_create ? create_item(i) : 0; + q = arg_remove ? remove_item(i) : 0; + p = arg_clean ? clean_item(i) : 0; + + return t < 0 ? t : + r < 0 ? r : + q < 0 ? q : + p; +} + +static int process_item_array(ItemArray *array) { + unsigned n; + int r = 0, k; + + assert(array); + + for (n = 0; n < array->count; n++) { + k = process_item(array->items + n); + if (k < 0 && r == 0) + r = k; + } + + return r; +} + +static void item_free_contents(Item *i) { + assert(i); + free(i->path); + free(i->argument); + strv_free(i->xattrs); + +#ifdef HAVE_ACL + acl_free(i->acl_access); + acl_free(i->acl_default); +#endif +} + +static void item_array_free(ItemArray *a) { + unsigned n; + + if (!a) + return; + + for (n = 0; n < a->count; n++) + item_free_contents(a->items + n); + free(a->items); + free(a); +} + +static int item_compare(const void *a, const void *b) { + const Item *x = a, *y = b; + + /* Make sure that the ownership taking item is put first, so + * that we first create the node, and then can adjust it */ + + if (takes_ownership(x->type) && !takes_ownership(y->type)) + return -1; + if (!takes_ownership(x->type) && takes_ownership(y->type)) + return 1; + + return (int) x->type - (int) y->type; +} + +static bool item_compatible(Item *a, Item *b) { + assert(a); + assert(b); + assert(streq(a->path, b->path)); + + if (takes_ownership(a->type) && takes_ownership(b->type)) + /* check if the items are the same */ + return streq_ptr(a->argument, b->argument) && + + a->uid_set == b->uid_set && + a->uid == b->uid && + + a->gid_set == b->gid_set && + a->gid == b->gid && + + a->mode_set == b->mode_set && + a->mode == b->mode && + + a->age_set == b->age_set && + a->age == b->age && + + a->mask_perms == b->mask_perms && + + a->keep_first_level == b->keep_first_level && + + a->major_minor == b->major_minor; + + return true; +} + +static bool should_include_path(const char *path) { + char **prefix; + + STRV_FOREACH(prefix, arg_exclude_prefixes) + if (path_startswith(path, *prefix)) { + log_debug("Entry \"%s\" matches exclude prefix \"%s\", skipping.", + path, *prefix); + return false; + } + + STRV_FOREACH(prefix, arg_include_prefixes) + if (path_startswith(path, *prefix)) { + log_debug("Entry \"%s\" matches include prefix \"%s\".", path, *prefix); + return true; + } + + /* no matches, so we should include this path only if we + * have no whitelist at all */ + if (strv_length(arg_include_prefixes) == 0) + return true; + + log_debug("Entry \"%s\" does not match any include prefix, skipping.", path); + return false; +} + +static int parse_line(const char *fname, unsigned line, const char *buffer) { + + _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL; + _cleanup_(item_free_contents) Item i = {}; + ItemArray *existing; + OrderedHashmap *h; + int r, pos; + bool force = false, boot = false; + + assert(fname); + assert(line >= 1); + assert(buffer); + + r = extract_many_words( + &buffer, + NULL, + EXTRACT_QUOTES, + &action, + &path, + &mode, + &user, + &group, + &age, + NULL); + if (r < 0) + return log_error_errno(r, "[%s:%u] Failed to parse line: %m", fname, line); + else if (r < 2) { + log_error("[%s:%u] Syntax error.", fname, line); + return -EIO; + } + + if (!isempty(buffer) && !streq(buffer, "-")) { + i.argument = strdup(buffer); + if (!i.argument) + return log_oom(); + } + + if (isempty(action)) { + log_error("[%s:%u] Command too short '%s'.", fname, line, action); + return -EINVAL; + } + + for (pos = 1; action[pos]; pos++) { + if (action[pos] == '!' && !boot) + boot = true; + else if (action[pos] == '+' && !force) + force = true; + else { + log_error("[%s:%u] Unknown modifiers in command '%s'", + fname, line, action); + return -EINVAL; + } + } + + if (boot && !arg_boot) { + log_debug("Ignoring entry %s \"%s\" because --boot is not specified.", + action, path); + return 0; + } + + i.type = action[0]; + i.force = force; + + r = specifier_printf(path, specifier_table, NULL, &i.path); + if (r < 0) { + log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path); + return r; + } + + switch (i.type) { + + case CREATE_DIRECTORY: + case CREATE_SUBVOLUME: + case CREATE_SUBVOLUME_INHERIT_QUOTA: + case CREATE_SUBVOLUME_NEW_QUOTA: + case EMPTY_DIRECTORY: + case TRUNCATE_DIRECTORY: + case CREATE_FIFO: + case IGNORE_PATH: + case IGNORE_DIRECTORY_PATH: + case REMOVE_PATH: + case RECURSIVE_REMOVE_PATH: + case ADJUST_MODE: + case RELABEL_PATH: + case RECURSIVE_RELABEL_PATH: + if (i.argument) + log_warning("[%s:%u] %c lines don't take argument fields, ignoring.", fname, line, i.type); + + break; + + case CREATE_FILE: + case TRUNCATE_FILE: + break; + + case CREATE_SYMLINK: + if (!i.argument) { + i.argument = strappend("/usr/share/factory/", i.path); + if (!i.argument) + return log_oom(); + } + break; + + case WRITE_FILE: + if (!i.argument) { + log_error("[%s:%u] Write file requires argument.", fname, line); + return -EBADMSG; + } + break; + + case COPY_FILES: + if (!i.argument) { + i.argument = strappend("/usr/share/factory/", i.path); + if (!i.argument) + return log_oom(); + } else if (!path_is_absolute(i.argument)) { + log_error("[%s:%u] Source path is not absolute.", fname, line); + return -EBADMSG; + } + + path_kill_slashes(i.argument); + break; + + case CREATE_CHAR_DEVICE: + case CREATE_BLOCK_DEVICE: { + unsigned major, minor; + + if (!i.argument) { + log_error("[%s:%u] Device file requires argument.", fname, line); + return -EBADMSG; + } + + if (sscanf(i.argument, "%u:%u", &major, &minor) != 2) { + log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i.argument); + return -EBADMSG; + } + + i.major_minor = makedev(major, minor); + break; + } + + case SET_XATTR: + case RECURSIVE_SET_XATTR: + if (!i.argument) { + log_error("[%s:%u] Set extended attribute requires argument.", fname, line); + return -EBADMSG; + } + r = parse_xattrs_from_arg(&i); + if (r < 0) + return r; + break; + + case SET_ACL: + case RECURSIVE_SET_ACL: + if (!i.argument) { + log_error("[%s:%u] Set ACLs requires argument.", fname, line); + return -EBADMSG; + } + r = parse_acls_from_arg(&i); + if (r < 0) + return r; + break; + + case SET_ATTRIBUTE: + case RECURSIVE_SET_ATTRIBUTE: + if (!i.argument) { + log_error("[%s:%u] Set file attribute requires argument.", fname, line); + return -EBADMSG; + } + r = parse_attribute_from_arg(&i); + if (r < 0) + return r; + break; + + default: + log_error("[%s:%u] Unknown command type '%c'.", fname, line, (char) i.type); + return -EBADMSG; + } + + if (!path_is_absolute(i.path)) { + log_error("[%s:%u] Path '%s' not absolute.", fname, line, i.path); + return -EBADMSG; + } + + path_kill_slashes(i.path); + + if (!should_include_path(i.path)) + return 0; + + if (arg_root) { + char *p; + + p = prefix_root(arg_root, i.path); + if (!p) + return log_oom(); + + free(i.path); + i.path = p; + } + + if (!isempty(user) && !streq(user, "-")) { + const char *u = user; + + r = get_user_creds(&u, &i.uid, NULL, NULL, NULL); + if (r < 0) { + log_error("[%s:%u] Unknown user '%s'.", fname, line, user); + return r; + } + + i.uid_set = true; + } + + if (!isempty(group) && !streq(group, "-")) { + const char *g = group; + + r = get_group_creds(&g, &i.gid); + if (r < 0) { + log_error("[%s:%u] Unknown group '%s'.", fname, line, group); + return r; + } + + i.gid_set = true; + } + + if (!isempty(mode) && !streq(mode, "-")) { + const char *mm = mode; + unsigned m; + + if (*mm == '~') { + i.mask_perms = true; + mm++; + } + + if (parse_mode(mm, &m) < 0) { + log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); + return -EBADMSG; + } + + i.mode = m; + i.mode_set = true; + } else + i.mode = IN_SET(i.type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA) ? 0755 : 0644; + + if (!isempty(age) && !streq(age, "-")) { + const char *a = age; + + if (*a == '~') { + i.keep_first_level = true; + a++; + } + + if (parse_sec(a, &i.age) < 0) { + log_error("[%s:%u] Invalid age '%s'.", fname, line, age); + return -EBADMSG; + } + + i.age_set = true; + } + + h = needs_glob(i.type) ? globs : items; + + existing = ordered_hashmap_get(h, i.path); + if (existing) { + unsigned n; + + for (n = 0; n < existing->count; n++) { + if (!item_compatible(existing->items + n, &i)) { + log_warning("[%s:%u] Duplicate line for path \"%s\", ignoring.", + fname, line, i.path); + return 0; + } + } + } else { + existing = new0(ItemArray, 1); + r = ordered_hashmap_put(h, i.path, existing); + if (r < 0) + return log_oom(); + } + + if (!GREEDY_REALLOC(existing->items, existing->size, existing->count + 1)) + return log_oom(); + + memcpy(existing->items + existing->count++, &i, sizeof(i)); + + /* Sort item array, to enforce stable ordering of application */ + qsort_safe(existing->items, existing->count, sizeof(Item), item_compare); + + zero(i); + return 0; +} + +static void help(void) { + printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" + "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" + " -h --help Show this help\n" + " --version Show package version\n" + " --create Create marked files/directories\n" + " --clean Clean up marked directories\n" + " --remove Remove marked files/directories\n" + " --boot Execute actions only safe at boot\n" + " --prefix=PATH Only apply rules with the specified prefix\n" + " --exclude-prefix=PATH Ignore rules with the specified prefix\n" + " --root=PATH Operate on an alternate filesystem root\n", + program_invocation_short_name); +} + +static int parse_argv(int argc, char *argv[]) { + + enum { + ARG_VERSION = 0x100, + ARG_CREATE, + ARG_CLEAN, + ARG_REMOVE, + ARG_BOOT, + ARG_PREFIX, + ARG_EXCLUDE_PREFIX, + ARG_ROOT, + }; + + static const struct option options[] = { + { "help", no_argument, NULL, 'h' }, + { "version", no_argument, NULL, ARG_VERSION }, + { "create", no_argument, NULL, ARG_CREATE }, + { "clean", no_argument, NULL, ARG_CLEAN }, + { "remove", no_argument, NULL, ARG_REMOVE }, + { "boot", no_argument, NULL, ARG_BOOT }, + { "prefix", required_argument, NULL, ARG_PREFIX }, + { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, + { "root", required_argument, NULL, ARG_ROOT }, + {} + }; + + int c, r; + + assert(argc >= 0); + assert(argv); + + while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) + + switch (c) { + + case 'h': + help(); + return 0; + + case ARG_VERSION: + return version(); + + case ARG_CREATE: + arg_create = true; + break; + + case ARG_CLEAN: + arg_clean = true; + break; + + case ARG_REMOVE: + arg_remove = true; + break; + + case ARG_BOOT: + arg_boot = true; + break; + + case ARG_PREFIX: + if (strv_push(&arg_include_prefixes, optarg) < 0) + return log_oom(); + break; + + case ARG_EXCLUDE_PREFIX: + if (strv_push(&arg_exclude_prefixes, optarg) < 0) + return log_oom(); + break; + + case ARG_ROOT: + r = parse_path_argument_and_warn(optarg, true, &arg_root); + if (r < 0) + return r; + break; + + case '?': + return -EINVAL; + + default: + assert_not_reached("Unhandled option"); + } + + if (!arg_clean && !arg_create && !arg_remove) { + log_error("You need to specify at least one of --clean, --create or --remove."); + return -EINVAL; + } + + return 1; +} + +static int read_config_file(const char *fn, bool ignore_enoent) { + _cleanup_fclose_ FILE *_f = NULL; + FILE *f; + char line[LINE_MAX]; + Iterator iterator; + unsigned v = 0; + Item *i; + int r = 0; + + assert(fn); + + if (streq(fn, "-")) { + log_debug("Reading config from stdin."); + fn = "<stdin>"; + f = stdin; + } else { + r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &_f); + if (r < 0) { + if (ignore_enoent && r == -ENOENT) { + log_debug_errno(r, "Failed to open \"%s\", ignoring: %m", fn); + return 0; + } + + return log_error_errno(r, "Failed to open '%s': %m", fn); + } + log_debug("Reading config file \"%s\".", fn); + f = _f; + } + + FOREACH_LINE(line, f, break) { + char *l; + int k; + + v++; + + l = strstrip(line); + if (*l == '#' || *l == 0) + continue; + + k = parse_line(fn, v, l); + if (k < 0 && r == 0) + r = k; + } + + /* we have to determine age parameter for each entry of type X */ + ORDERED_HASHMAP_FOREACH(i, globs, iterator) { + Iterator iter; + Item *j, *candidate_item = NULL; + + if (i->type != IGNORE_DIRECTORY_PATH) + continue; + + ORDERED_HASHMAP_FOREACH(j, items, iter) { + if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA)) + continue; + + if (path_equal(j->path, i->path)) { + candidate_item = j; + break; + } + + if ((!candidate_item && path_startswith(i->path, j->path)) || + (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) + candidate_item = j; + } + + if (candidate_item && candidate_item->age_set) { + i->age = candidate_item->age; + i->age_set = true; + } + } + + if (ferror(f)) { + log_error_errno(errno, "Failed to read from file %s: %m", fn); + if (r == 0) + r = -EIO; + } + + return r; +} + +int main(int argc, char *argv[]) { + int r, k; + ItemArray *a; + Iterator iterator; + + r = parse_argv(argc, argv); + if (r <= 0) + goto finish; + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + mac_selinux_init(); + + items = ordered_hashmap_new(&string_hash_ops); + globs = ordered_hashmap_new(&string_hash_ops); + + if (!items || !globs) { + r = log_oom(); + goto finish; + } + + r = 0; + + if (optind < argc) { + int j; + + for (j = optind; j < argc; j++) { + k = read_config_file(argv[j], false); + if (k < 0 && r == 0) + r = k; + } + + } else { + _cleanup_strv_free_ char **files = NULL; + char **f; + + r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs); + if (r < 0) { + log_error_errno(r, "Failed to enumerate tmpfiles.d files: %m"); + goto finish; + } + + STRV_FOREACH(f, files) { + k = read_config_file(*f, true); + if (k < 0 && r == 0) + r = k; + } + } + + /* The non-globbing ones usually create things, hence we apply + * them first */ + ORDERED_HASHMAP_FOREACH(a, items, iterator) { + k = process_item_array(a); + if (k < 0 && r == 0) + r = k; + } + + /* The globbing ones usually alter things, hence we apply them + * second. */ + ORDERED_HASHMAP_FOREACH(a, globs, iterator) { + k = process_item_array(a); + if (k < 0 && r == 0) + r = k; + } + +finish: + while ((a = ordered_hashmap_steal_first(items))) + item_array_free(a); + + while ((a = ordered_hashmap_steal_first(globs))) + item_array_free(a); + + ordered_hashmap_free(items); + ordered_hashmap_free(globs); + + free(arg_include_prefixes); + free(arg_exclude_prefixes); + free(arg_root); + + set_free_free(unix_sockets); + + mac_selinux_finish(); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-tmpfiles/tmpfiles.d.xml b/src/grp-initprogs/systemd-tmpfiles/tmpfiles.d.xml new file mode 100644 index 0000000000..e040a1636d --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/tmpfiles.d.xml @@ -0,0 +1,703 @@ +<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2010 Brandon Philips + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="tmpfiles.d"> + + <refentryinfo> + <title>tmpfiles.d</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Documentation</contrib> + <firstname>Brandon</firstname> + <surname>Philips</surname> + <email>brandon@ifup.org</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>tmpfiles.d</refentrytitle> + <manvolnum>5</manvolnum> + </refmeta> + + <refnamediv> + <refname>tmpfiles.d</refname> + <refpurpose>Configuration for creation, deletion and cleaning of + volatile and temporary files</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>/etc/tmpfiles.d/*.conf</filename></para> + <para><filename>/run/tmpfiles.d/*.conf</filename></para> + <para><filename>/usr/lib/tmpfiles.d/*.conf</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><command>systemd-tmpfiles</command> uses the configuration + files from the above directories to describe the creation, + cleaning and removal of volatile and temporary files and + directories which usually reside in directories such as + <filename>/run</filename> or <filename>/tmp</filename>.</para> + + <para>Volatile and temporary files and directories are those + located in <filename>/run</filename> (and its alias + <filename>/var/run</filename>), <filename>/tmp</filename>, + <filename>/var/tmp</filename>, the API file systems such as + <filename>/sys</filename> or <filename>/proc</filename>, as well + as some other directories below <filename>/var</filename>.</para> + + <para>System daemons frequently require private runtime + directories below <filename>/run</filename> to place communication + sockets and similar in. For these, consider declaring them in + their unit files using <varname>RuntimeDirectory=</varname> (see + <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry> + for details), if this is feasible.</para> + </refsect1> + + <refsect1> + <title>Configuration Format</title> + + <para>Each configuration file shall be named in the style of + <filename><replaceable>package</replaceable>.conf</filename> or + <filename><replaceable>package</replaceable>-<replaceable>part</replaceable>.conf</filename>. + The second variant should be used when it is desirable to make it + easy to override just this part of configuration.</para> + + <para>Files in <filename>/etc/tmpfiles.d</filename> override files + with the same name in <filename>/usr/lib/tmpfiles.d</filename> and + <filename>/run/tmpfiles.d</filename>. Files in + <filename>/run/tmpfiles.d</filename> override files with the same + name in <filename>/usr/lib/tmpfiles.d</filename>. Packages should + install their configuration files in + <filename>/usr/lib/tmpfiles.d</filename>. Files in + <filename>/etc/tmpfiles.d</filename> are reserved for the local + administrator, who may use this logic to override the + configuration files installed by vendor packages. All + configuration files are sorted by their filename in lexicographic + order, regardless of which of the directories they reside in. If + multiple files specify the same path, the entry in the file with + the lexicographically earliest name will be applied. All other + conflicting entries will be logged as errors. When two lines are + prefix and suffix of each other, then the prefix is always + processed first, the suffix later. Lines that take globs are + applied after those accepting no globs. If multiple operations + shall be applied on the same file, (such as ACL, xattr, file + attribute adjustments), these are always done in the same fixed + order. Otherwise, the files/directories are processed in the order + they are listed.</para> + + <para>If the administrator wants to disable a configuration file + supplied by the vendor, the recommended way is to place a symlink + to <filename>/dev/null</filename> in + <filename>/etc/tmpfiles.d/</filename> bearing the same filename. + </para> + + <para>The configuration format is one line per path containing + type, path, mode, ownership, age, and argument fields:</para> + + <programlisting>#Type Path Mode UID GID Age Argument + d /run/user 0755 root root 10d - + L /tmp/foobar - - - - /dev/null</programlisting> + + <para>Fields may be enclosed within quotes and contain C-style escapes.</para> + + <refsect2> + <title>Type</title> + + <para>The type consists of a single letter and optionally an + exclamation mark.</para> + + <para>The following line types are understood:</para> + + <variablelist> + <varlistentry> + <term><varname>f</varname></term> + <listitem><para>Create a file if it does not exist yet. If + the argument parameter is given, it will be written to the + file. Does not follow symlinks.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>F</varname></term> + <listitem><para>Create or truncate a file. If the argument + parameter is given, it will be written to the file. Does not follow symlinks.</para> + </listitem> + </varlistentry> + + <varlistentry> + <term><varname>w</varname></term> + <listitem><para>Write the argument parameter to a file, if + the file exists. Lines of this type accept shell-style + globs in place of normal path names. The argument parameter + will be written without a trailing newline. C-style + backslash escapes are interpreted. Follows + symlinks.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>d</varname></term> + <listitem><para>Create a directory. The mode and ownership will be adjusted if + specified and the directory already exists. Contents of this directory are subject + to time based cleanup if the time argument is specified.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>D</varname></term> + <listitem><para>Similar to <varname>d</varname>, but in addition the contents + of the directory will be removed when <option>--remove</option> is used. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>e</varname></term> + <listitem><para>Similar to <varname>d</varname>, but the directory will not be + created if it does not exist. Lines of this type accept shell-style globs in + place of normal path names.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>v</varname></term> + <listitem><para>Create a subvolume if the path does not + exist yet, the file system supports subvolumes (btrfs), and + the system itself is installed into a subvolume + (specifically: the root directory <filename>/</filename> is + itself a subvolume). Otherwise, create a normal directory, in + the same way as <varname>d</varname>. A subvolume created + with this line type is not assigned to any higher-level + quota group. For that, use <varname>q</varname> or + <varname>Q</varname>, which allow creating simple quota + group hierarchies, see below.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>q</varname></term> + <listitem><para>Similar to <varname>v</varname>. However, + makes sure that the subvolume will be assigned to the same + higher-level quota groups as the subvolume it has been + created in. This ensures that higher-level limits and + accounting applied to the parent subvolume also include the + specified subvolume. On non-btrfs file systems, this line + type is identical to <varname>d</varname>. If the subvolume + already exists and is already assigned to one or more higher + level quota groups, no change to the quota hierarchy is + made. Also see <varname>Q</varname> below. See <citerefentry + project='die-net'><refentrytitle>btrfs-qgroup</refentrytitle><manvolnum>8</manvolnum></citerefentry> + for details about the btrfs quota group + concept.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>Q</varname></term> + <listitem><para>Similar to <varname>q</varname>. However, + instead of copying the higher-level quota group assignments + from the parent as-is, the lowest quota group of the parent + subvolume is determined that is not the leaf quota + group. Then, an "intermediary" quota group is inserted that + is one level below this level, and shares the same ID part + as the specified subvolume. If no higher-level quota group + exists for the parent subvolume, a new quota group at level + 255 sharing the same ID as the specified subvolume is + inserted instead. This new intermediary quota group is then + assigned to the parent subvolume's higher-level quota + groups, and the specified subvolume's leaf quota group is + assigned to it.</para> + + <para>Effectively, this has a similar effect as + <varname>q</varname>, however introduces a new higher-level + quota group for the specified subvolume that may be used to + enforce limits and accounting to the specified subvolume and + children subvolume created within it. Thus, by creating + subvolumes only via <varname>q</varname> and + <varname>Q</varname>, a concept of "subtree quotas" is + implemented. Each subvolume for which <varname>Q</varname> + is set will get a "subtree" quota group created, and all + child subvolumes created within it will be assigned to + it. Each subvolume for which <varname>q</varname> is set + will not get such a "subtree" quota group, but it is ensured + that they are added to the same "subtree" quota group as their + immediate parents.</para> + + <para>It is recommended to use + <varname>Q</varname> for subvolumes that typically contain + further subvolumes, and where it is desirable to have + accounting and quota limits on all child subvolumes + together. Examples for <varname>Q</varname> are typically + <filename>/home</filename> or + <filename>/var/lib/machines</filename>. In contrast, + <varname>q</varname> should be used for subvolumes that + either usually do not include further subvolumes or where no + accounting and quota limits are needed that apply to all + child subvolumes together. Examples for <varname>q</varname> + are typically <filename>/var</filename> or + <filename>/var/tmp</filename>. As with <varname>Q</varname>, + <varname>q</varname> has no effect on the quota group + hierarchy if the subvolume exists and already has at least + one higher-level quota group assigned.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>p</varname></term> + <term><varname>p+</varname></term> + <listitem><para>Create a named pipe (FIFO) if it does not + exist yet. If suffixed with <varname>+</varname> and a file + already exists where the pipe is to be created, it will be + removed and be replaced by the pipe.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>L</varname></term> + <term><varname>L+</varname></term> + <listitem><para>Create a symlink if it does not exist + yet. If suffixed with <varname>+</varname> and a file + already exists where the symlink is to be created, it will + be removed and be replaced by the symlink. If the argument + is omitted, symlinks to files with the same name residing in + the directory <filename>/usr/share/factory/</filename> are + created. Note that permissions and ownership on symlinks + are ignored.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>c</varname></term> + <term><varname>c+</varname></term> + <listitem><para>Create a character device node if it does + not exist yet. If suffixed with <varname>+</varname> and a + file already exists where the device node is to be created, + it will be removed and be replaced by the device node. It is + recommended to suffix this entry with an exclamation mark to + only create static device nodes at boot, as udev will not + manage static device nodes that are created at runtime. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>b</varname></term> + <term><varname>b+</varname></term> + <listitem><para>Create a block device node if it does not + exist yet. If suffixed with <varname>+</varname> and a file + already exists where the device node is to be created, it + will be removed and be replaced by the device node. It is + recommended to suffix this entry with an exclamation mark to + only create static device nodes at boot, as udev will not + manage static device nodes that are created at runtime. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>C</varname></term> + <listitem><para>Recursively copy a file or directory, if the + destination files or directories do not exist yet. Note that + this command will not descend into subdirectories if the + destination directory already exists. Instead, the entire + copy operation is skipped. If the argument is omitted, files + from the source directory + <filename>/usr/share/factory/</filename> with the same name + are copied. Does not follow symlinks.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>x</varname></term> + <listitem><para>Ignore a path during cleaning. Use this type + to exclude paths from clean-up as controlled with the Age + parameter. Note that lines of this type do not influence the + effect of <varname>r</varname> or <varname>R</varname> + lines. Lines of this type accept shell-style globs in place + of normal path names. </para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>X</varname></term> + <listitem><para>Ignore a path during cleaning. Use this type + to exclude paths from clean-up as controlled with the Age + parameter. Unlike <varname>x</varname>, this parameter will + not exclude the content if path is a directory, but only + directory itself. Note that lines of this type do not + influence the effect of <varname>r</varname> or + <varname>R</varname> lines. Lines of this type accept + shell-style globs in place of normal path names. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>r</varname></term> + <listitem><para>Remove a file or directory if it exists. + This may not be used to remove non-empty directories, use + <varname>R</varname> for that. Lines of this type accept + shell-style globs in place of normal path + names. Does not follow symlinks.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>R</varname></term> + <listitem><para>Recursively remove a path and all its + subdirectories (if it is a directory). Lines of this type + accept shell-style globs in place of normal path + names. Does not follow symlinks.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>z</varname></term> + <listitem><para>Adjust the access mode, group and user, and + restore the SELinux security context of a file or directory, + if it exists. Lines of this type accept shell-style globs in + place of normal path names. Does not follow symlinks.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>Z</varname></term> + <listitem><para>Recursively set the access mode, group and + user, and restore the SELinux security context of a file or + directory if it exists, as well as of its subdirectories and + the files contained therein (if applicable). Lines of this + type accept shell-style globs in place of normal path + names. Does not follow symlinks. </para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>t</varname></term> + <listitem><para>Set extended attributes. Lines of this type + accept shell-style globs in place of normal path names. + This can be useful for setting SMACK labels. Does not follow + symlinks.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>T</varname></term> + <listitem><para>Recursively set extended attributes. Lines + of this type accept shell-style globs in place of normal + path names. This can be useful for setting SMACK + labels. Does not follow symlinks. </para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>h</varname></term> + <listitem><para>Set file/directory attributes. Lines of this type + accept shell-style globs in place of normal path names.</para> + + <para>The format of the argument field is + <varname>[+-=][aAcCdDeijsStTu] </varname>. The prefix + <varname>+</varname> (the default one) causes the + attribute(s) to be added; <varname>-</varname> causes the + attribute(s) to be removed; <varname>=</varname> causes the + attributes to be set exactly as the following letters. The + letters <literal>aAcCdDeijsStTu</literal> select the new + attributes for the files, see + <citerefentry project='man-pages'><refentrytitle>chattr</refentrytitle> + <manvolnum>1</manvolnum></citerefentry> for further information. + </para> + <para>Passing only <varname>=</varname> as argument resets + all the file attributes listed above. It has to be pointed + out that the <varname>=</varname> prefix limits itself to + the attributes corresponding to the letters listed here. All + other attributes will be left untouched. Does not follow + symlinks.</para> + </listitem> + </varlistentry> + + <varlistentry> + <term><varname>H</varname></term> + <listitem><para>Recursively set file/directory attributes. Lines + of this type accept shell-style globs in place of normal + path names. Does not follow symlinks. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>a</varname></term> + <term><varname>a+</varname></term> + <listitem><para>Set POSIX ACLs (access control lists). If + suffixed with <varname>+</varname>, the specified entries will + be added to the existing set. + <command>systemd-tmpfiles</command> will automatically add + the required base entries for user and group based on the + access mode of the file, unless base entries already exist + or are explicitly specified. The mask will be added if not + specified explicitly or already present. Lines of this type + accept shell-style globs in place of normal path names. This + can be useful for allowing additional access to certain + files. Does not follow symlinks.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>A</varname></term> + <term><varname>A+</varname></term> + <listitem><para>Same as <varname>a</varname> and + <varname>a+</varname>, but recursive. Does not follow + symlinks.</para></listitem> + </varlistentry> + </variablelist> + + <para>If the exclamation mark is used, this line is only safe of + execute during boot, and can break a running system. Lines + without the exclamation mark are presumed to be safe to execute + at any time, e.g. on package upgrades. + <command>systemd-tmpfiles</command> will execute line with an + exclamation mark only if option <option>--boot</option> is + given.</para> + + <para>For example: + <programlisting># Make sure these are created by default so that nobody else can + d /tmp/.X11-unix 1777 root root 10d + + # Unlink the X11 lock files + r! /tmp/.X[0-9]*-lock</programlisting> + The second line in contrast to the first one would break a + running system, and will only be executed with + <option>--boot</option>.</para> + </refsect2> + + <refsect2> + <title>Path</title> + + <para>The file system path specification supports simple + specifier expansion. The following expansions are + understood:</para> + + <table> + <title>Specifiers available</title> + <tgroup cols='3' align='left' colsep='1' rowsep='1'> + <colspec colname="spec" /> + <colspec colname="mean" /> + <colspec colname="detail" /> + <thead> + <row> + <entry>Specifier</entry> + <entry>Meaning</entry> + <entry>Details</entry> + </row> + </thead> + <tbody> + <row> + <entry><literal>%m</literal></entry> + <entry>Machine ID</entry> + <entry>The machine ID of the running system, formatted as string. See <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry> for more information.</entry> + </row> + <row> + <entry><literal>%b</literal></entry> + <entry>Boot ID</entry> + <entry>The boot ID of the running system, formatted as string. See <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry> for more information.</entry> + </row> + <row> + <entry><literal>%H</literal></entry> + <entry>Host name</entry> + <entry>The hostname of the running system.</entry> + </row> + <row> + <entry><literal>%v</literal></entry> + <entry>Kernel release</entry> + <entry>Identical to <command>uname -r</command> output.</entry> + </row> + <row> + <entry><literal>%%</literal></entry> + <entry>Escaped %</entry> + <entry>Single percent sign.</entry> + </row> + </tbody> + </tgroup> + </table> + </refsect2> + + <refsect2> + <title>Mode</title> + + <para>The file access mode to use when creating this file or + directory. If omitted or when set to <literal>-</literal>, the + default is used: 0755 for directories, 0644 for all other file + objects. For <varname>z</varname>, <varname>Z</varname> lines, + if omitted or when set to <literal>-</literal>, the file access + mode will not be modified. This parameter is ignored for + <varname>x</varname>, <varname>r</varname>, + <varname>R</varname>, <varname>L</varname>, <varname>t</varname>, + and <varname>a</varname> lines.</para> + + <para>Optionally, if prefixed with <literal>~</literal>, the + access mode is masked based on the already set access bits for + existing file or directories: if the existing file has all + executable bits unset, all executable bits are removed from the + new access mode, too. Similarly, if all read bits are removed + from the old access mode, they will be removed from the new + access mode too, and if all write bits are removed, they will be + removed from the new access mode too. In addition, the + sticky/SUID/SGID bit is removed unless applied to a + directory. This functionality is particularly useful in + conjunction with <varname>Z</varname>.</para> + </refsect2> + + <refsect2> + <title>UID, GID</title> + + <para>The user and group to use for this file or directory. This + may either be a numeric user/group ID or a user or group + name. If omitted or when set to <literal>-</literal>, the + default 0 (root) is used. For <varname>z</varname> and + <varname>Z</varname> lines, when omitted or when set to + <literal>-</literal>, the file ownership will not be + modified. These parameters are ignored for <varname>x</varname>, + <varname>r</varname>, <varname>R</varname>, + <varname>L</varname>, <varname>t</varname>, and + <varname>a</varname> lines.</para> + </refsect2> + + <refsect2> + <title>Age</title> + <para>The date field, when set, is used to decide what files to + delete when cleaning. If a file or directory is older than the + current time minus the age field, it is deleted. The field + format is a series of integers each followed by one of the + following suffixes for the respective time units: + <constant>s</constant>, + <constant>m</constant> or <constant>min</constant>, + <constant>h</constant>, + <constant>d</constant>, + <constant>w</constant>, + <constant>ms</constant>, and + <constant>us</constant>, + meaning seconds, minutes, hours, days, weeks, + milliseconds, and microseconds, respectively. Full names of the time units can + be used too. + </para> + + <para>If multiple integers and units are specified, the time + values are summed. If an integer is given without a unit, + <constant>s</constant> is assumed. + </para> + + <para>When the age is set to zero, the files are cleaned + unconditionally.</para> + + <para>The age field only applies to lines starting with + <varname>d</varname>, <varname>D</varname>, <varname>e</varname>, + <varname>v</varname>, <varname>q</varname>, + <varname>Q</varname>, <varname>C</varname>, <varname>x</varname> + and <varname>X</varname>. If omitted or set to + <literal>-</literal>, no automatic clean-up is done.</para> + + <para>If the age field starts with a tilde character + <literal>~</literal>, the clean-up is only applied to files and + directories one level inside the directory specified, but not + the files and directories immediately inside it.</para> + </refsect2> + + <refsect2> + <title>Argument</title> + + <para>For <varname>L</varname> lines determines the destination + path of the symlink. For <varname>c</varname> and + <varname>b</varname>, determines the major/minor of the device + node, with major and minor formatted as integers, separated by + <literal>:</literal>, e.g. <literal>1:3</literal>. For + <varname>f</varname>, <varname>F</varname>, and + <varname>w</varname>, the argument may be used to specify a short string that + is written to the file, suffixed by a newline. For + <varname>C</varname>, specifies the source file or + directory. For <varname>t</varname> and <varname>T</varname>, + determines extended attributes to be set. For + <varname>a</varname> and <varname>A</varname>, determines ACL + attributes to be set. For <varname>h</varname> and + <varname>H</varname>, determines the file attributes to + set. Ignored for all other lines.</para> + </refsect2> + + </refsect1> + + <refsect1> + <title>Examples</title> + <example> + <title>Create directories with specific mode and ownership</title> + <para> + <citerefentry project='die-net'><refentrytitle>screen</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + needs two directories created at boot with specific modes and ownership:</para> + + <programlisting># /usr/lib/tmpfiles.d/screen.conf +d /run/screens 1777 root screen 10d +d /run/uscreens 0755 root screen 10d12h +</programlisting> + + <para>Contents of <filename>/run/screens</filename> and /run/uscreens will + cleaned up after 10 and 10½ days, respectively.</para> + </example> + + <example> + <title>Create a directory with a SMACK attribute</title> + <programlisting>D /run/cups - - - - +t /run/cups - - - - security.SMACK64=printing user.attr-with-spaces="foo bar" + </programlisting> + + <para>The directory will be owned by root and have default mode. Its contents are + not subject to time based cleanup, but will be obliterated when + <command>systemd-tmpfiles --remove</command> runs.</para> + </example> + + <example> + <title>Create a directory and prevent its contents from cleanup</title> + <para> + <citerefentry project='die-net'><refentrytitle>abrt</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + needs a directory created at boot with specific mode and ownership and its content + should be preserved from the automatic cleanup applied to the contents of + <filename>/var/tmp</filename>:</para> + + <programlisting># /usr/lib/tmpfiles.d/tmp.conf +d /var/tmp 1777 root root 30d +</programlisting> + + <programlisting># /usr/lib/tmpfiles.d/abrt.conf +d /var/tmp/abrt 0755 abrt abrt - +</programlisting> + </example> + + <example> + <title>Apply clean up during boot and based on time</title> + + <programlisting># /usr/lib/tmpfiles.d/dnf.conf +r! /var/cache/dnf/*/*/download_lock.pid +r! /var/cache/dnf/*/*/metadata_lock.pid +r! /var/lib/dnf/rpmdb_lock.pid +e /var/chache/dnf/ - - - 30d +</programlisting> + + <para>The lock files will be removed during boot. Any files and directories in + <filename>/var/chache/dnf/</filename> will be removed after they have not been + accessed in 30 days.</para> + </example> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-tmpfiles</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-delta</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>attr</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>getfattr</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>setfattr</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>setfacl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>getfacl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>chattr</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='die-net'><refentrytitle>btrfs-subvolume</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='die-net'><refentrytitle>btrfs-qgroup</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-tmpfiles/var.tmpfiles b/src/grp-initprogs/systemd-tmpfiles/var.tmpfiles new file mode 100644 index 0000000000..ae7952e77a --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/var.tmpfiles @@ -0,0 +1,22 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +# See tmpfiles.d(5) for details + +q /var 0755 - - - + +L /var/run - - - - ../run + +d /var/log 0755 - - - +f /var/log/wtmp 0664 root utmp - +f /var/log/btmp 0600 root utmp - + +d /var/cache 0755 - - - + +d /var/lib 0755 - - - + +d /var/spool 0755 - - - diff --git a/src/grp-initprogs/systemd-tmpfiles/x11.tmpfiles b/src/grp-initprogs/systemd-tmpfiles/x11.tmpfiles new file mode 100644 index 0000000000..4c96a54a13 --- /dev/null +++ b/src/grp-initprogs/systemd-tmpfiles/x11.tmpfiles @@ -0,0 +1,18 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +# See tmpfiles.d(5) for details + +# Make sure these are created by default so that nobody else can +d /tmp/.X11-unix 1777 root root 10d +d /tmp/.ICE-unix 1777 root root 10d +d /tmp/.XIM-unix 1777 root root 10d +d /tmp/.font-unix 1777 root root 10d +d /tmp/.Test-unix 1777 root root 10d + +# Unlink the X11 lock files +r! /tmp/.X[0-9]*-lock diff --git a/src/grp-initprogs/systemd-update-done/GNUmakefile b/src/grp-initprogs/systemd-update-done/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-update-done/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-update-done/Makefile b/src/grp-initprogs/systemd-update-done/Makefile new file mode 100644 index 0000000000..258828924a --- /dev/null +++ b/src/grp-initprogs/systemd-update-done/Makefile @@ -0,0 +1,34 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +rootlibexec_PROGRAMS += systemd-update-done + +systemd_update_done_SOURCES = \ + src/update-done/update-done.c + +systemd_update_done_LDADD = \ + libsystemd-shared.la + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-update-done/systemd-update-done.service.in b/src/grp-initprogs/systemd-update-done/systemd-update-done.service.in new file mode 100644 index 0000000000..ec7d906392 --- /dev/null +++ b/src/grp-initprogs/systemd-update-done/systemd-update-done.service.in @@ -0,0 +1,21 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Update is Completed +Documentation=man:systemd-update-done.service(8) +DefaultDependencies=no +Conflicts=shutdown.target +After=local-fs.target +Before=sysinit.target shutdown.target +ConditionNeedsUpdate=|/etc +ConditionNeedsUpdate=|/var + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootlibexecdir@/systemd-update-done diff --git a/src/grp-initprogs/systemd-update-done/systemd-update-done.service.xml b/src/grp-initprogs/systemd-update-done/systemd-update-done.service.xml new file mode 100644 index 0000000000..a2dad39f01 --- /dev/null +++ b/src/grp-initprogs/systemd-update-done/systemd-update-done.service.xml @@ -0,0 +1,97 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2014 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-update-done.service"> + + <refentryinfo> + <title>systemd-update-done.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-update-done.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-update-done.service</refname> + <refname>systemd-update-done</refname> + <refpurpose>Mark <filename>/etc</filename> and <filename>/var</filename> fully updated</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-update-done.service</filename></para> + <para><filename>/usr/lib/systemd/systemd-update-done</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-update-done.service</filename> is a + service that is invoked as part of the first boot after the vendor + operating system resources in <filename>/usr</filename> have been + updated. This is useful to implement offline updates of + <filename>/usr</filename> which might require updates to + <filename>/etc</filename> or <filename>/var</filename> on the + following boot.</para> + + <para><filename>systemd-update-done.service</filename> updates the + file modification time (mtime) of the stamp files + <filename>/etc/.updated</filename> and + <filename>/var/.updated</filename> to the modification time of the + <filename>/usr</filename> directory, unless the stamp files are + already newer.</para> + + <para>Services that shall run after offline upgrades of + <filename>/usr</filename> should order themselves before + <filename>systemd-update-done.service</filename>, and use the + <varname>ConditionNeedsUpdate=</varname> (see + <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>) + condition to make sure to run when <filename>/etc</filename> or + <filename>/var</filename> are older than <filename>/usr</filename> + according to the modification times of the files described above. + This requires that updates to <filename>/usr</filename> are always + followed by an update of the modification time of + <filename>/usr</filename>, for example by invoking + <citerefentry project='man-pages'><refentrytitle>touch</refentrytitle><manvolnum>1</manvolnum></citerefentry> + on it.</para> + + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>touch</refentrytitle><manvolnum>1</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-update-done/update-done.c b/src/grp-initprogs/systemd-update-done/update-done.c new file mode 100644 index 0000000000..f35e293e3d --- /dev/null +++ b/src/grp-initprogs/systemd-update-done/update-done.c @@ -0,0 +1,108 @@ +/*** + This file is part of systemd. + + Copyright 2014 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include "systemd-basic/fd-util.h" +#include "systemd-basic/fileio.h" +#include "systemd-basic/io-util.h" +#include "systemd-basic/selinux-util.h" +#include "systemd-basic/util.h" + +#define MESSAGE \ + "# This file was created by systemd-update-done. Its only \n" \ + "# purpose is to hold a timestamp of the time this directory\n" \ + "# was updated. See systemd-update-done.service(8).\n" + +static int apply_timestamp(const char *path, struct timespec *ts) { + struct timespec twice[2] = { + *ts, + *ts + }; + _cleanup_fclose_ FILE *f = NULL; + int fd = -1; + int r; + + assert(path); + assert(ts); + + /* + * We store the timestamp both as mtime of the file and in the file itself, + * to support filesystems which cannot store nanosecond-precision timestamps. + * Hence, don't bother updating the file, let's just rewrite it. + */ + + r = mac_selinux_create_file_prepare(path, S_IFREG); + if (r < 0) + return log_error_errno(r, "Failed to set SELinux context for %s: %m", path); + + fd = open(path, O_CREAT|O_WRONLY|O_TRUNC|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW, 0644); + mac_selinux_create_file_clear(); + + if (fd < 0) { + if (errno == EROFS) + return log_debug("Can't create timestamp file %s, file system is read-only.", path); + + return log_error_errno(errno, "Failed to create/open timestamp file %s: %m", path); + } + + f = fdopen(fd, "we"); + if (!f) { + safe_close(fd); + return log_error_errno(errno, "Failed to fdopen() timestamp file %s: %m", path); + } + + (void) fprintf(f, + MESSAGE + "TIMESTAMP_NSEC=" NSEC_FMT "\n", + timespec_load_nsec(ts)); + + r = fflush_and_check(f); + if (r < 0) + return log_error_errno(r, "Failed to write timestamp file: %m"); + + if (futimens(fd, twice) < 0) + return log_error_errno(errno, "Failed to update timestamp on %s: %m", path); + + return 0; +} + +int main(int argc, char *argv[]) { + struct stat st; + int r, q = 0; + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + if (stat("/usr", &st) < 0) { + log_error_errno(errno, "Failed to stat /usr: %m"); + return EXIT_FAILURE; + } + + r = mac_selinux_init(); + if (r < 0) { + log_error_errno(r, "SELinux setup failed: %m"); + goto finish; + } + + r = apply_timestamp("/etc/.updated", &st.st_mtim); + q = apply_timestamp("/var/.updated", &st.st_mtim); + +finish: + return r < 0 || q < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-update-utmp/GNUmakefile b/src/grp-initprogs/systemd-update-utmp/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-update-utmp/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-update-utmp/Makefile b/src/grp-initprogs/systemd-update-utmp/Makefile new file mode 100644 index 0000000000..506e4840a5 --- /dev/null +++ b/src/grp-initprogs/systemd-update-utmp/Makefile @@ -0,0 +1,41 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(HAVE_UTMP),) +rootlibexec_PROGRAMS += \ + systemd-update-utmp +endif # HAVE_UTMP + +systemd_update_utmp_SOURCES = \ + src/update-utmp/update-utmp.c + +systemd_update_utmp_CFLAGS = \ + $(AUDIT_CFLAGS) + +systemd_update_utmp_LDADD = \ + libsystemd-shared.la \ + $(AUDIT_LIBS) + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.in b/src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.in new file mode 100644 index 0000000000..163eccd91f --- /dev/null +++ b/src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.in @@ -0,0 +1,21 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Update UTMP about System Boot/Shutdown +Documentation=man:systemd-update-utmp.service(8) man:utmp(5) +DefaultDependencies=no +RequiresMountsFor=/var/log/wtmp +Conflicts=shutdown.target +After=systemd-remount-fs.service systemd-tmpfiles-setup.service auditd.service +Before=sysinit.target shutdown.target + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootlibexecdir@/systemd-update-utmp reboot +ExecStop=@rootlibexecdir@/systemd-update-utmp shutdown diff --git a/src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.xml b/src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.xml new file mode 100644 index 0000000000..c8a9cb7c90 --- /dev/null +++ b/src/grp-initprogs/systemd-update-utmp/systemd-update-utmp.service.xml @@ -0,0 +1,76 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-update-utmp.service" conditional="HAVE_UTMP"> + + <refentryinfo> + <title>systemd-update-utmp.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-update-utmp.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-update-utmp.service</refname> + <refname>systemd-update-utmp-runlevel.service</refname> + <refname>systemd-update-utmp</refname> + <refpurpose>Write audit and utmp updates at bootup, runlevel + changes and shutdown</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-update-utmp.service</filename></para> + <para><filename>systemd-update-utmp-runlevel.service</filename></para> + <para><filename>/usr/lib/systemd/systemd-update-utmp</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-update-utmp-runlevel.service</filename> is + a service that writes SysV runlevel changes to utmp and wtmp, as + well as the audit logs, as they occur. + <filename>systemd-update-utmp.service</filename> does the same for + system reboots and shutdown requests.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>utmp</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>auditd</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-update-utmp/update-utmp.c b/src/grp-initprogs/systemd-update-utmp/update-utmp.c new file mode 100644 index 0000000000..8f622caa64 --- /dev/null +++ b/src/grp-initprogs/systemd-update-utmp/update-utmp.c @@ -0,0 +1,284 @@ +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <string.h> +#include <unistd.h> + +#ifdef HAVE_AUDIT +#include <libaudit.h> +#endif + +#include <systemd/sd-bus.h> + +#include "sd-bus/bus-error.h" +#include "sd-bus/bus-util.h" +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/formats-util.h" +#include "systemd-basic/log.h" +#include "systemd-basic/macro.h" +#include "systemd-basic/special.h" +#include "systemd-basic/strv.h" +#include "systemd-basic/unit-name.h" +#include "systemd-basic/util.h" +#include "systemd-shared/utmp-wtmp.h" + +typedef struct Context { + sd_bus *bus; +#ifdef HAVE_AUDIT + int audit_fd; +#endif +} Context; + +static usec_t get_startup_time(Context *c) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + usec_t t = 0; + int r; + + assert(c); + + r = sd_bus_get_property_trivial( + c->bus, + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "UserspaceTimestamp", + &error, + 't', &t); + if (r < 0) { + log_error_errno(r, "Failed to get timestamp: %s", bus_error_message(&error, r)); + return 0; + } + + return t; +} + +static int get_current_runlevel(Context *c) { + static const struct { + const int runlevel; + const char *special; + } table[] = { + /* The first target of this list that is active or has + * a job scheduled wins. We prefer runlevels 5 and 3 + * here over the others, since these are the main + * runlevels used on Fedora. It might make sense to + * change the order on some distributions. */ + { '5', SPECIAL_GRAPHICAL_TARGET }, + { '3', SPECIAL_MULTI_USER_TARGET }, + { '1', SPECIAL_RESCUE_TARGET }, + }; + + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + int r; + unsigned i; + + assert(c); + + for (i = 0; i < ELEMENTSOF(table); i++) { + _cleanup_free_ char *state = NULL, *path = NULL; + + path = unit_dbus_path_from_name(table[i].special); + if (!path) + return log_oom(); + + r = sd_bus_get_property_string( + c->bus, + "org.freedesktop.systemd1", + path, + "org.freedesktop.systemd1.Unit", + "ActiveState", + &error, + &state); + if (r < 0) + return log_warning_errno(r, "Failed to get state: %s", bus_error_message(&error, r)); + + if (STR_IN_SET(state, "active", "reloading")) + return table[i].runlevel; + } + + return 0; +} + +static int on_reboot(Context *c) { + int r = 0, q; + usec_t t; + + assert(c); + + /* We finished start-up, so let's write the utmp + * record and send the audit msg */ + +#ifdef HAVE_AUDIT + if (c->audit_fd >= 0) + if (audit_log_user_comm_message(c->audit_fd, AUDIT_SYSTEM_BOOT, "", "systemd-update-utmp", NULL, NULL, NULL, 1) < 0 && + errno != EPERM) { + r = log_error_errno(errno, "Failed to send audit message: %m"); + } +#endif + + /* If this call fails it will return 0, which + * utmp_put_reboot() will then fix to the current time */ + t = get_startup_time(c); + + q = utmp_put_reboot(t); + if (q < 0) { + log_error_errno(q, "Failed to write utmp record: %m"); + r = q; + } + + return r; +} + +static int on_shutdown(Context *c) { + int r = 0, q; + + assert(c); + + /* We started shut-down, so let's write the utmp + * record and send the audit msg */ + +#ifdef HAVE_AUDIT + if (c->audit_fd >= 0) + if (audit_log_user_comm_message(c->audit_fd, AUDIT_SYSTEM_SHUTDOWN, "", "systemd-update-utmp", NULL, NULL, NULL, 1) < 0 && + errno != EPERM) { + r = log_error_errno(errno, "Failed to send audit message: %m"); + } +#endif + + q = utmp_put_shutdown(); + if (q < 0) { + log_error_errno(q, "Failed to write utmp record: %m"); + r = q; + } + + return r; +} + +static int on_runlevel(Context *c) { + int r = 0, q, previous, runlevel; + + assert(c); + + /* We finished changing runlevel, so let's write the + * utmp record and send the audit msg */ + + /* First, get last runlevel */ + q = utmp_get_runlevel(&previous, NULL); + + if (q < 0) { + if (q != -ESRCH && q != -ENOENT) + return log_error_errno(q, "Failed to get current runlevel: %m"); + + previous = 0; + } + + /* Secondly, get new runlevel */ + runlevel = get_current_runlevel(c); + + if (runlevel < 0) + return runlevel; + + if (previous == runlevel) + return 0; + +#ifdef HAVE_AUDIT + if (c->audit_fd >= 0) { + _cleanup_free_ char *s = NULL; + + if (asprintf(&s, "old-level=%c new-level=%c", + previous > 0 ? previous : 'N', + runlevel > 0 ? runlevel : 'N') < 0) + return log_oom(); + + if (audit_log_user_comm_message(c->audit_fd, AUDIT_SYSTEM_RUNLEVEL, s, "systemd-update-utmp", NULL, NULL, NULL, 1) < 0 && errno != EPERM) + r = log_error_errno(errno, "Failed to send audit message: %m"); + } +#endif + + q = utmp_put_runlevel(runlevel, previous); + if (q < 0 && q != -ESRCH && q != -ENOENT) { + log_error_errno(q, "Failed to write utmp record: %m"); + r = q; + } + + return r; +} + +int main(int argc, char *argv[]) { + Context c = { +#ifdef HAVE_AUDIT + .audit_fd = -1 +#endif + }; + int r; + + if (getppid() != 1) { + log_error("This program should be invoked by init only."); + return EXIT_FAILURE; + } + + if (argc != 2) { + log_error("This program requires one argument."); + return EXIT_FAILURE; + } + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + +#ifdef HAVE_AUDIT + /* If the kernel lacks netlink or audit support, + * don't worry about it. */ + c.audit_fd = audit_open(); + if (c.audit_fd < 0 && errno != EAFNOSUPPORT && errno != EPROTONOSUPPORT) + log_error_errno(errno, "Failed to connect to audit log: %m"); +#endif + r = bus_connect_system_systemd(&c.bus); + if (r < 0) { + log_error_errno(r, "Failed to get D-Bus connection: %m"); + r = -EIO; + goto finish; + } + + log_debug("systemd-update-utmp running as pid "PID_FMT, getpid()); + + if (streq(argv[1], "reboot")) + r = on_reboot(&c); + else if (streq(argv[1], "shutdown")) + r = on_shutdown(&c); + else if (streq(argv[1], "runlevel")) + r = on_runlevel(&c); + else { + log_error("Unknown command %s", argv[1]); + r = -EINVAL; + } + + log_debug("systemd-update-utmp stopped as pid "PID_FMT, getpid()); + +finish: +#ifdef HAVE_AUDIT + if (c.audit_fd >= 0) + audit_close(c.audit_fd); +#endif + + sd_bus_flush_close_unref(c.bus); + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-user-sessions/GNUmakefile b/src/grp-initprogs/systemd-user-sessions/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-user-sessions/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-user-sessions/Makefile b/src/grp-initprogs/systemd-user-sessions/Makefile new file mode 100644 index 0000000000..91c84e46fe --- /dev/null +++ b/src/grp-initprogs/systemd-user-sessions/Makefile @@ -0,0 +1,48 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(HAVE_PAM),) + +systemd_user_sessions_SOURCES = \ + src/user-sessions/user-sessions.c + +systemd_user_sessions_LDADD = \ + libsystemd-shared.la + +rootlibexec_PROGRAMS += \ + systemd-user-sessions + +nodist_systemunit_DATA += \ + units/systemd-user-sessions.service + +MULTI_USER_TARGET_WANTS += \ + systemd-user-sessions.service + +endif # HAVE_PAM + +EXTRA_DIST += \ + units/systemd-user-sessions.service.in + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-user-sessions/systemd-user-sessions.service.in b/src/grp-initprogs/systemd-user-sessions/systemd-user-sessions.service.in new file mode 100644 index 0000000000..b4ea5a134b --- /dev/null +++ b/src/grp-initprogs/systemd-user-sessions/systemd-user-sessions.service.in @@ -0,0 +1,17 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Permit User Sessions +Documentation=man:systemd-user-sessions.service(8) +After=remote-fs.target nss-user-lookup.target network.target + +[Service] +Type=oneshot +RemainAfterExit=yes +ExecStart=@rootlibexecdir@/systemd-user-sessions start +ExecStop=@rootlibexecdir@/systemd-user-sessions stop diff --git a/src/grp-initprogs/systemd-user-sessions/systemd-user-sessions.service.xml b/src/grp-initprogs/systemd-user-sessions/systemd-user-sessions.service.xml new file mode 100644 index 0000000000..67aba54119 --- /dev/null +++ b/src/grp-initprogs/systemd-user-sessions/systemd-user-sessions.service.xml @@ -0,0 +1,75 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-user-sessions.service" conditional='HAVE_PAM'> + + <refentryinfo> + <title>systemd-user-sessions.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-user-sessions.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-user-sessions.service</refname> + <refname>systemd-user-sessions</refname> + <refpurpose>Permit user logins after boot, prohibit user logins at shutdown</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-user-sessions.service</filename></para> + <para><filename>/usr/lib/systemd/systemd-user-sessions</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-user-sessions.service</filename> is a + service that controls user logins through + <citerefentry project='man-pages'><refentrytitle>pam_nologin</refentrytitle><manvolnum>8</manvolnum></citerefentry>. + After basic system initialization is complete, it removes + <filename>/run/nologin</filename>, thus permitting logins. Before + system shutdown, it creates <filename>/run/nologin</filename>, thus + prohibiting further logins.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-logind.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>pam_nologin</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-user-sessions/user-sessions.c b/src/grp-initprogs/systemd-user-sessions/user-sessions.c new file mode 100644 index 0000000000..3ccb419aee --- /dev/null +++ b/src/grp-initprogs/systemd-user-sessions/user-sessions.c @@ -0,0 +1,84 @@ +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <unistd.h> + +#include "systemd-basic/fileio-label.h" +#include "systemd-basic/fileio.h" +#include "systemd-basic/log.h" +#include "systemd-basic/selinux-util.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/util.h" + +int main(int argc, char*argv[]) { + + if (argc != 2) { + log_error("This program requires one argument."); + return EXIT_FAILURE; + } + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + mac_selinux_init(); + + if (streq(argv[1], "start")) { + int r = 0; + + if (unlink("/run/nologin") < 0 && errno != ENOENT) + r = log_error_errno(errno, + "Failed to remove /run/nologin file: %m"); + + if (unlink("/etc/nologin") < 0 && errno != ENOENT) { + /* If the file doesn't exist and /etc simply + * was read-only (in which case unlink() + * returns EROFS even if the file doesn't + * exist), don't complain */ + + if (errno != EROFS || access("/etc/nologin", F_OK) >= 0) { + log_error_errno(errno, "Failed to remove /etc/nologin file: %m"); + return EXIT_FAILURE; + } + } + + if (r < 0) + return EXIT_FAILURE; + + } else if (streq(argv[1], "stop")) { + int r; + + r = write_string_file_atomic_label("/run/nologin", "System is going down."); + if (r < 0) { + log_error_errno(r, "Failed to create /run/nologin: %m"); + return EXIT_FAILURE; + } + + } else { + log_error("Unknown verb %s.", argv[1]); + return EXIT_FAILURE; + } + + mac_selinux_finish(); + + return EXIT_SUCCESS; +} diff --git a/src/grp-initprogs/systemd-vconsole-setup/.gitignore b/src/grp-initprogs/systemd-vconsole-setup/.gitignore new file mode 100644 index 0000000000..82741b2fb3 --- /dev/null +++ b/src/grp-initprogs/systemd-vconsole-setup/.gitignore @@ -0,0 +1 @@ +/90-vconsole.rules diff --git a/src/grp-initprogs/systemd-vconsole-setup/90-vconsole.rules.in b/src/grp-initprogs/systemd-vconsole-setup/90-vconsole.rules.in new file mode 100644 index 0000000000..84b4d575bd --- /dev/null +++ b/src/grp-initprogs/systemd-vconsole-setup/90-vconsole.rules.in @@ -0,0 +1,10 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +# Each vtcon keeps its own state of fonts. +# +ACTION=="add", SUBSYSTEM=="vtconsole", KERNEL=="vtcon*", ATTR{name}!="*dummy device", RUN+="@rootlibexecdir@/systemd-vconsole-setup" diff --git a/src/grp-initprogs/systemd-vconsole-setup/GNUmakefile b/src/grp-initprogs/systemd-vconsole-setup/GNUmakefile new file mode 120000 index 0000000000..95e5924740 --- /dev/null +++ b/src/grp-initprogs/systemd-vconsole-setup/GNUmakefile @@ -0,0 +1 @@ +../../../GNUmakefile
\ No newline at end of file diff --git a/src/grp-initprogs/systemd-vconsole-setup/Makefile b/src/grp-initprogs/systemd-vconsole-setup/Makefile new file mode 100644 index 0000000000..d1918d968e --- /dev/null +++ b/src/grp-initprogs/systemd-vconsole-setup/Makefile @@ -0,0 +1,47 @@ +# -*- Mode: makefile; indent-tabs-mode: t -*- +# +# This file is part of systemd. +# +# Copyright 2010-2012 Lennart Poettering +# Copyright 2010-2012 Kay Sievers +# Copyright 2013 Zbigniew Jędrzejewski-Szmek +# Copyright 2013 David Strauss +# Copyright 2016 Luke Shumaker +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. +# +# systemd is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with systemd; If not, see <http://www.gnu.org/licenses/>. +include $(dir $(lastword $(MAKEFILE_LIST)))/../../../config.mk +include $(topsrcdir)/build-aux/Makefile.head.mk + +ifneq ($(ENABLE_VCONSOLE),) +systemd_vconsole_setup_SOURCES = \ + src/vconsole/vconsole-setup.c + +systemd_vconsole_setup_LDADD = \ + libsystemd-shared.la + +rootlibexec_PROGRAMS += \ + systemd-vconsole-setup + +nodist_udevrules_DATA += \ + src/vconsole/90-vconsole.rules + +nodist_systemunit_DATA += \ + units/systemd-vconsole-setup.service +endif # ENABLE_VCONSOLE + +EXTRA_DIST += \ + src/vconsole/90-vconsole.rules.in \ + units/systemd-vconsole-setup.service.in + +include $(topsrcdir)/build-aux/Makefile.tail.mk diff --git a/src/grp-initprogs/systemd-vconsole-setup/systemd-vconsole-setup.service.in b/src/grp-initprogs/systemd-vconsole-setup/systemd-vconsole-setup.service.in new file mode 100644 index 0000000000..2bd1fd1a5d --- /dev/null +++ b/src/grp-initprogs/systemd-vconsole-setup/systemd-vconsole-setup.service.in @@ -0,0 +1,16 @@ +# This file is part of systemd. +# +# systemd is free software; you can redistribute it and/or modify it +# under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or +# (at your option) any later version. + +[Unit] +Description=Setup Virtual Console +Documentation=man:systemd-vconsole-setup.service(8) man:vconsole.conf(5) +DefaultDependencies=no +ConditionPathExists=/dev/tty0 + +[Service] +Type=oneshot +ExecStart=@rootlibexecdir@/systemd-vconsole-setup diff --git a/src/grp-initprogs/systemd-vconsole-setup/systemd-vconsole-setup.service.xml b/src/grp-initprogs/systemd-vconsole-setup/systemd-vconsole-setup.service.xml new file mode 100644 index 0000000000..f2da2a7b77 --- /dev/null +++ b/src/grp-initprogs/systemd-vconsole-setup/systemd-vconsole-setup.service.xml @@ -0,0 +1,92 @@ +<?xml version="1.0"?> +<!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> +<!-- + This file is part of systemd. + + Copyright 2012 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> +<refentry id="systemd-vconsole-setup.service" conditional='ENABLE_VCONSOLE'> + + <refentryinfo> + <title>systemd-vconsole-setup.service</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-vconsole-setup.service</refentrytitle> + <manvolnum>8</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-vconsole-setup.service</refname> + <refname>systemd-vconsole-setup</refname> + <refpurpose>Configure the virtual consoles</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>systemd-vconsole-setup.service</filename></para> + <cmdsynopsis> + <command>/usr/lib/systemd/systemd-vconsole-setup</command> + <arg choice="opt">TTY</arg> + </cmdsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><filename>systemd-vconsole-setup</filename> is a helper used to prepare either all virtual consoles, or — if + the optional <replaceable>TTY</replaceable> parameter is provided — a specific one. When the system is booting up + it's called by <citerefentry><command>udev</command></citerefentry> during vtconsole subsystem initialization. + <productname>Systemd</productname> also calls it internally as needed via + <filename>systemd-vconsole-setup.service</filename>. The helper calls + <citerefentry project='mankier'><refentrytitle>loadkeys</refentrytitle><manvolnum>1</manvolnum></citerefentry> and + <citerefentry project='die-net'><refentrytitle>setfont</refentrytitle><manvolnum>8</manvolnum></citerefentry> + internally. + </para> + + <para> + You may want to use this helper whenever you change <filename>vconsole.conf</filename> to + refresh the settings on your consoles — either through the <command>systemctl restart</command> / + <command>systemctl start</command> command or directly through the executable. + </para> + + <para>See + <citerefentry><refentrytitle>vconsole.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry> + for information about the configuration files and kernel command line options understood by this program.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>vconsole.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry project='mankier'><refentrytitle>loadkeys</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='die-net'><refentrytitle>setfont</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-localed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> diff --git a/src/grp-initprogs/systemd-vconsole-setup/vconsole-setup.c b/src/grp-initprogs/systemd-vconsole-setup/vconsole-setup.c new file mode 100644 index 0000000000..ad6a4283fc --- /dev/null +++ b/src/grp-initprogs/systemd-vconsole-setup/vconsole-setup.c @@ -0,0 +1,412 @@ +/*** + This file is part of systemd. + + Copyright 2010 Kay Sievers + Copyright 2016 Michal Soltys <soltys@ziu.info> + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +***/ + +#include <errno.h> +#include <fcntl.h> +#include <limits.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <sys/ioctl.h> +#include <termios.h> +#include <unistd.h> + +#include <linux/kd.h> +#include <linux/tiocl.h> +#include <linux/vt.h> + +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/fileio.h" +#include "systemd-basic/io-util.h" +#include "systemd-basic/locale-util.h" +#include "systemd-basic/log.h" +#include "systemd-basic/process-util.h" +#include "systemd-basic/signal-util.h" +#include "systemd-basic/stdio-util.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/terminal-util.h" +#include "systemd-basic/util.h" +#include "systemd-basic/virt.h" + +static bool is_vconsole(int fd) { + unsigned char data[1]; + + data[0] = TIOCL_GETFGCONSOLE; + return ioctl(fd, TIOCLINUX, data) >= 0; +} + +static bool is_allocated(unsigned int idx) { + char vcname[strlen("/dev/vcs") + DECIMAL_STR_MAX(int)]; + + xsprintf(vcname, "/dev/vcs%i", idx); + return access(vcname, F_OK) == 0; +} + +static bool is_allocated_byfd(int fd) { + struct vt_stat vcs = {}; + + if (ioctl(fd, VT_GETSTATE, &vcs) < 0) { + log_warning_errno(errno, "VT_GETSTATE failed: %m"); + return false; + } + return is_allocated(vcs.v_active); +} + +static bool is_settable(int fd) { + int r, curr_mode; + + r = ioctl(fd, KDGKBMODE, &curr_mode); + /* + * Make sure we only adjust consoles in K_XLATE or K_UNICODE mode. + * Otherwise we would (likely) interfere with X11's processing of the + * key events. + * + * http://lists.freedesktop.org/archives/systemd-devel/2013-February/008573.html + */ + return r == 0 && IN_SET(curr_mode, K_XLATE, K_UNICODE); +} + +static int toggle_utf8(const char *name, int fd, bool utf8) { + int r; + struct termios tc = {}; + + assert(name); + + r = ioctl(fd, KDSKBMODE, utf8 ? K_UNICODE : K_XLATE); + if (r < 0) + return log_warning_errno(errno, "Failed to %s UTF-8 kbdmode on %s: %m", enable_disable(utf8), name); + + r = loop_write(fd, utf8 ? "\033%G" : "\033%@", 3, false); + if (r < 0) + return log_warning_errno(r, "Failed to %s UTF-8 term processing on %s: %m", enable_disable(utf8), name); + + r = tcgetattr(fd, &tc); + if (r >= 0) { + if (utf8) + tc.c_iflag |= IUTF8; + else + tc.c_iflag &= ~IUTF8; + r = tcsetattr(fd, TCSANOW, &tc); + } + if (r < 0) + return log_warning_errno(errno, "Failed to %s iutf8 flag on %s: %m", enable_disable(utf8), name); + + log_debug("UTF-8 kbdmode %sd on %s", enable_disable(utf8), name); + return 0; +} + +static int toggle_utf8_sysfs(bool utf8) { + int r; + + r = write_string_file("/sys/module/vt/parameters/default_utf8", one_zero(utf8), 0); + if (r < 0) + return log_warning_errno(r, "Failed to %s sysfs UTF-8 flag: %m", enable_disable(utf8)); + + log_debug("Sysfs UTF-8 flag %sd", enable_disable(utf8)); + return 0; +} + +static int keyboard_load_and_wait(const char *vc, const char *map, const char *map_toggle, bool utf8) { + const char *args[8]; + int i = 0; + pid_t pid; + + /* An empty map means kernel map */ + if (isempty(map)) + return 0; + + args[i++] = KBD_LOADKEYS; + args[i++] = "-q"; + args[i++] = "-C"; + args[i++] = vc; + if (utf8) + args[i++] = "-u"; + args[i++] = map; + if (map_toggle) + args[i++] = map_toggle; + args[i++] = NULL; + + pid = fork(); + if (pid < 0) + return log_error_errno(errno, "Failed to fork: %m"); + else if (pid == 0) { + + (void) reset_all_signal_handlers(); + (void) reset_signal_mask(); + + execv(args[0], (char **) args); + _exit(EXIT_FAILURE); + } + + return wait_for_terminate_and_warn(KBD_LOADKEYS, pid, true); +} + +static int font_load_and_wait(const char *vc, const char *font, const char *map, const char *unimap) { + const char *args[9]; + int i = 0; + pid_t pid; + + /* Any part can be set independently */ + if (isempty(font) && isempty(map) && isempty(unimap)) + return 0; + + args[i++] = KBD_SETFONT; + args[i++] = "-C"; + args[i++] = vc; + if (!isempty(map)) { + args[i++] = "-m"; + args[i++] = map; + } + if (!isempty(unimap)) { + args[i++] = "-u"; + args[i++] = unimap; + } + if (!isempty(font)) + args[i++] = font; + args[i++] = NULL; + + pid = fork(); + if (pid < 0) + return log_error_errno(errno, "Failed to fork: %m"); + else if (pid == 0) { + + (void) reset_all_signal_handlers(); + (void) reset_signal_mask(); + + execv(args[0], (char **) args); + _exit(EXIT_FAILURE); + } + + return wait_for_terminate_and_warn(KBD_SETFONT, pid, true); +} + +/* + * A newly allocated VT uses the font from the active VT. Here + * we update all possibly already allocated VTs with the configured + * font. It also allows to restart systemd-vconsole-setup.service, + * to apply a new font to all VTs. + * + * We also setup per-console utf8 related stuff: kbdmode, term + * processing, stty iutf8. + */ +static void setup_remaining_vcs(int fd, bool utf8) { + struct console_font_op cfo = { + .op = KD_FONT_OP_GET, + .width = UINT_MAX, .height = UINT_MAX, + .charcount = UINT_MAX, + }; + struct vt_stat vcs = {}; + struct unimapinit adv = {}; + struct unimapdesc unimapd; + _cleanup_free_ struct unipair* unipairs = NULL; + _cleanup_free_ void *fontbuf = NULL; + int i, r; + + unipairs = new(struct unipair, USHRT_MAX); + if (!unipairs) { + log_oom(); + return; + } + + /* get active, and 16 bit mask of used VT numbers */ + r = ioctl(fd, VT_GETSTATE, &vcs); + if (r < 0) { + log_warning_errno(errno, "VT_GETSTATE failed, ignoring remaining consoles: %m"); + return; + } + + /* get metadata of the current font (width, height, count) */ + r = ioctl(fd, KDFONTOP, &cfo); + if (r < 0) + log_warning_errno(errno, "KD_FONT_OP_GET failed while trying to get the font metadata: %m"); + else { + /* verify parameter sanity first */ + if (cfo.width > 32 || cfo.height > 32 || cfo.charcount > 512) + log_warning("Invalid font metadata - width: %u (max 32), height: %u (max 32), count: %u (max 512)", + cfo.width, cfo.height, cfo.charcount); + else { + /* + * Console fonts supported by the kernel are limited in size to 32 x 32 and maximum 512 + * characters. Thus with 1 bit per pixel it requires up to 65536 bytes. The height always + * requries 32 per glyph, regardless of the actual height - see the comment above #define + * max_font_size 65536 in drivers/tty/vt/vt.c for more details. + */ + fontbuf = malloc((cfo.width + 7) / 8 * 32 * cfo.charcount); + if (!fontbuf) { + log_oom(); + return; + } + /* get fonts from source console */ + cfo.data = fontbuf; + r = ioctl(fd, KDFONTOP, &cfo); + if (r < 0) + log_warning_errno(errno, "KD_FONT_OP_GET failed while trying to read the font data: %m"); + else { + unimapd.entries = unipairs; + unimapd.entry_ct = USHRT_MAX; + r = ioctl(fd, GIO_UNIMAP, &unimapd); + if (r < 0) + log_warning_errno(errno, "GIO_UNIMAP failed while trying to read unicode mappings: %m"); + else + cfo.op = KD_FONT_OP_SET; + } + } + } + + if (cfo.op != KD_FONT_OP_SET) + log_warning("Fonts will not be copied to remaining consoles"); + + for (i = 1; i <= 63; i++) { + char ttyname[strlen("/dev/tty") + DECIMAL_STR_MAX(int)]; + _cleanup_close_ int fd_d = -1; + + if (i == vcs.v_active || !is_allocated(i)) + continue; + + /* try to open terminal */ + xsprintf(ttyname, "/dev/tty%i", i); + fd_d = open_terminal(ttyname, O_RDWR|O_CLOEXEC); + if (fd_d < 0) { + log_warning_errno(fd_d, "Unable to open tty%i, fonts will not be copied: %m", i); + continue; + } + + if (!is_settable(fd_d)) + continue; + + toggle_utf8(ttyname, fd_d, utf8); + + if (cfo.op != KD_FONT_OP_SET) + continue; + + r = ioctl(fd_d, KDFONTOP, &cfo); + if (r < 0) { + log_warning_errno(errno, "KD_FONT_OP_SET failed, fonts will not be copied to tty%i: %m", i); + continue; + } + + /* copy unicode translation table */ + /* unimapd is a ushort count and a pointer to an + array of struct unipair { ushort, ushort } */ + r = ioctl(fd_d, PIO_UNIMAPCLR, &adv); + if (r < 0) { + log_warning_errno(errno, "PIO_UNIMAPCLR failed, unimaps might be incorrect for tty%i: %m", i); + continue; + } + + r = ioctl(fd_d, PIO_UNIMAP, &unimapd); + if (r < 0) { + log_warning_errno(errno, "PIO_UNIMAP failed, unimaps might be incorrect for tty%i: %m", i); + continue; + } + + log_debug("Font and unimap successfully copied to %s", ttyname); + } +} + +int main(int argc, char **argv) { + const char *vc; + _cleanup_free_ char + *vc_keymap = NULL, *vc_keymap_toggle = NULL, + *vc_font = NULL, *vc_font_map = NULL, *vc_font_unimap = NULL; + _cleanup_close_ int fd = -1; + bool utf8, font_copy = false, font_ok, keyboard_ok; + int r = EXIT_FAILURE; + + log_set_target(LOG_TARGET_AUTO); + log_parse_environment(); + log_open(); + + umask(0022); + + if (argv[1]) + vc = argv[1]; + else { + vc = "/dev/tty0"; + font_copy = true; + } + + fd = open_terminal(vc, O_RDWR|O_CLOEXEC); + if (fd < 0) { + log_error_errno(fd, "Failed to open %s: %m", vc); + return EXIT_FAILURE; + } + + if (!is_vconsole(fd)) { + log_error("Device %s is not a virtual console.", vc); + return EXIT_FAILURE; + } + + if (!is_allocated_byfd(fd)) { + log_error("Virtual console %s is not allocated.", vc); + return EXIT_FAILURE; + } + + if (!is_settable(fd)) { + log_error("Virtual console %s is not in K_XLATE or K_UNICODE.", vc); + return EXIT_FAILURE; + } + + utf8 = is_locale_utf8(); + + r = parse_env_file("/etc/vconsole.conf", NEWLINE, + "KEYMAP", &vc_keymap, + "KEYMAP_TOGGLE", &vc_keymap_toggle, + "FONT", &vc_font, + "FONT_MAP", &vc_font_map, + "FONT_UNIMAP", &vc_font_unimap, + NULL); + + if (r < 0 && r != -ENOENT) + log_warning_errno(r, "Failed to read /etc/vconsole.conf: %m"); + + /* Let the kernel command line override /etc/vconsole.conf */ + if (detect_container() <= 0) { + r = parse_env_file("/proc/cmdline", WHITESPACE, + "vconsole.keymap", &vc_keymap, + "vconsole.keymap_toggle", &vc_keymap_toggle, + "vconsole.font", &vc_font, + "vconsole.font_map", &vc_font_map, + "vconsole.font_unimap", &vc_font_unimap, + /* compatibility with obsolete multiple-dot scheme */ + "vconsole.keymap.toggle", &vc_keymap_toggle, + "vconsole.font.map", &vc_font_map, + "vconsole.font.unimap", &vc_font_unimap, + NULL); + + if (r < 0 && r != -ENOENT) + log_warning_errno(r, "Failed to read /proc/cmdline: %m"); + } + + toggle_utf8_sysfs(utf8); + toggle_utf8(vc, fd, utf8); + font_ok = font_load_and_wait(vc, vc_font, vc_font_map, vc_font_unimap) == 0; + keyboard_ok = keyboard_load_and_wait(vc, vc_keymap, vc_keymap_toggle, utf8) == 0; + + if (font_copy) { + if (font_ok) + setup_remaining_vcs(fd, utf8); + else + log_warning("Setting source virtual console failed, ignoring remaining ones"); + } + + return font_ok && keyboard_ok ? EXIT_SUCCESS : EXIT_FAILURE; +} diff --git a/src/grp-initprogs/systemd-vconsole-setup/vconsole.conf.xml b/src/grp-initprogs/systemd-vconsole-setup/vconsole.conf.xml new file mode 100644 index 0000000000..fa30ca6569 --- /dev/null +++ b/src/grp-initprogs/systemd-vconsole-setup/vconsole.conf.xml @@ -0,0 +1,164 @@ +<?xml version='1.0'?> <!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" + "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + +<!-- + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> + +<refentry id="vconsole.conf" conditional='ENABLE_VCONSOLE'> + <refentryinfo> + <title>vconsole.conf</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>vconsole.conf</refentrytitle> + <manvolnum>5</manvolnum> + </refmeta> + + <refnamediv> + <refname>vconsole.conf</refname> + <refpurpose>Configuration file for the virtual console</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <para><filename>/etc/vconsole.conf</filename></para> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para>The <filename>/etc/vconsole.conf</filename> file configures + the virtual console, i.e. keyboard mapping and console font. It is + applied at boot by udev using <filename>90-vconsole.rules</filename> file. + You can safely mask this file if you want to avoid this kind of initialization. + </para> + + <para>The basic file format of the + <filename>vconsole.conf</filename> is a newline-separated list of + environment-like shell-compatible variable assignments. It is + possible to source the configuration from shell scripts, however, + beyond mere variable assignments no shell features are supported, + allowing applications to read the file without implementing a + shell compatible execution engine.</para> + + <para>Note that the kernel command line options + <varname>vconsole.keymap=</varname>, + <varname>vconsole.keymap_toggle=</varname>, + <varname>vconsole.font=</varname>, + <varname>vconsole.font_map=</varname>, + <varname>vconsole.font_unimap=</varname> may be used + to override the console settings at boot.</para> + + <para>Depending on the operating system other configuration files + might be checked for configuration of the virtual console as well, + however only as fallback.</para> + </refsect1> + + <refsect1> + <title>Options</title> + + <para>The following options are understood:</para> + + <variablelist> + + <varlistentry> + <term><varname>KEYMAP=</varname></term> + <term><varname>KEYMAP_TOGGLE=</varname></term> + + <listitem><para>Configures the key mapping table for the keyboard. + <varname>KEYMAP=</varname> defaults to <literal>us</literal> if not set. The + <varname>KEYMAP_TOGGLE=</varname> can be used to configure a second toggle keymap and is by + default unset.</para></listitem> + </varlistentry> + + <varlistentry> + <term><varname>FONT=</varname></term> + <term><varname>FONT_MAP=</varname></term> + <term><varname>FONT_UNIMAP=</varname></term> + + <listitem><para>Configures the console font, the console map + and the unicode font map.</para></listitem> + </varlistentry> + + </variablelist> + </refsect1> + + <refsect1> + <title>Kernel Command Line</title> + + <para>A few configuration parameters from <filename>vconsole.conf</filename> may be overridden + on the kernel command line:</para> + + <variablelist class='kernel-commandline-options'> + <varlistentry> + <term><varname>vconsole.keymap=</varname></term> + <term><varname>vconsole.keymap_toggle=</varname></term> + + <listitem><para>Overrides <varname>KEYMAP=</varname> and <varname>KEYMAP_TOGGLE=</varname>. + </para></listitem> + </varlistentry> + <varlistentry> + + <term><varname>vconsole.font=</varname></term> + <term><varname>vconsole.font_map=</varname></term> + <term><varname>vconsole.font_unimap=</varname></term> + + <listitem><para>Overrides <varname>FONT=</varname>, <varname>FONT_MAP=</varname>, and + <varname>FONT_UNIMAP=</varname>.</para></listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Example</title> + + <example> + <title>German keyboard and console</title> + + <para><filename>/etc/vconsole.conf</filename>:</para> + + <programlisting>KEYMAP=de-latin1 +FONT=eurlatgr</programlisting> + </example> + + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-vconsole-setup.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='mankier'><refentrytitle>loadkeys</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry project='die-net'><refentrytitle>setfont</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>locale.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-localed.service</refentrytitle><manvolnum>8</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> |