From 10bbb30aeb9866aa34870575b238756490c7c397 Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Wed, 26 Oct 2016 23:40:04 -0400 Subject: ./tools/notsd-move --- .../grp-sleep/systemd-hibernate-resume/Makefile | 45 ++++++++++++ .../systemd-hibernate-resume/hibernate-resume.c | 82 ++++++++++++++++++++++ .../systemd-hibernate-resume@.service.in | 20 ++++++ .../systemd-hibernate-resume@.service.xml | 81 +++++++++++++++++++++ 4 files changed, 228 insertions(+) create mode 100644 src/grp-initprogs/grp-sleep/systemd-hibernate-resume/Makefile create mode 100644 src/grp-initprogs/grp-sleep/systemd-hibernate-resume/hibernate-resume.c create mode 100644 src/grp-initprogs/grp-sleep/systemd-hibernate-resume/systemd-hibernate-resume@.service.in create mode 100644 src/grp-initprogs/grp-sleep/systemd-hibernate-resume/systemd-hibernate-resume@.service.xml (limited to 'src/grp-initprogs/grp-sleep/systemd-hibernate-resume') 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 . +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 . +***/ + +#include +#include +#include + +#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 @@ + + + + + + + + systemd-hibernate-resume@.service + systemd + + + + Developer + Ivan + Shapovalov + intelfx100@gmail.com + + + + + + systemd-hibernate-resume@.service + 8 + + + + systemd-hibernate-resume@.service + systemd-hibernate-resume + Resume from hibernation + + + + systemd-hibernate-resume@.service + /usr/lib/systemd/systemd-hibernate-resume + + + + Description + + systemd-hibernate-resume@.service + initiates the resume from hibernation. It is instantiated with the + device to resume from as the template argument. + + systemd-hibernate-resume only supports + the in-kernel hibernation implementation, known as + swsusp. + Internally, it works by writing the major:minor of specified + device node to /sys/power/resume. + + 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. + + + + See Also + + systemd1, + systemd-hibernate-resume-generator8 + + + + -- cgit v1.2.3-54-g00ecf