diff options
author | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-09-10 15:23:12 -0400 |
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committer | Luke Shumaker <lukeshu@sbcglobal.net> | 2016-09-10 15:23:12 -0400 |
commit | 91c48c1a54e21341836847a7e904ec4d6b677399 (patch) | |
tree | 2fc6d1533ebd8b6cb8e4a414ef8b731ef33c455a /src/grp-initprogs/systemd-user-sessions | |
parent | c61e54391f4ac0ccd97577d9d27482ca48dd0c80 (diff) |
./move.sh
Diffstat (limited to 'src/grp-initprogs/systemd-user-sessions')
3 files changed, 176 insertions, 0 deletions
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..9b29b5ba1d --- /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 "fileio.h" +#include "fileio-label.h" +#include "log.h" +#include "selinux-util.h" +#include "string-util.h" +#include "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; +} |