./move.sh

3 files changed, 241 insertions, 0 deletions

diff --git a/src/systemd-hibernate-resume/Makefile b/src/systemd-hibernate-resume/Makefile
new file mode 100644
index 0000000000..baee443e84
--- /dev/null
+++ b/src/systemd-hibernate-resume/Makefile
@@ -0,0 +1,60 @@
+#  -*- 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
+
+libexec_PROGRAMS += \
+	systemd-hibernate-resume
+
+systemd_hibernate_resume_SOURCES = \
+	src/hibernate-resume/hibernate-resume.c
+
+systemd_hibernate_resume_LDADD = \
+	libshared.la
+
+systemd_hibernate_resume_generator_SOURCES = \
+	src/hibernate-resume/hibernate-resume-generator.c
+
+systemd_hibernate_resume_generator_LDADD = \
+	libshared.la
+
+dist_systemunit_DATA += \
+	units/hibernate.target \
+	units/hybrid-sleep.target
+
+nodist_systemunit_DATA += \
+	units/systemd-hibernate.service \
+	units/systemd-hibernate-resume@.service \
+	units/systemd-hybrid-sleep.service
+endif # ENABLE_HIBERNATE
+
+EXTRA_DIST += \
+	units/systemd-hibernate.service.in \
+	units/systemd-hibernate-resume@.service.in \
+	units/systemd-hybrid-sleep.service.in
+
+include $(topsrcdir)/build-aux/Makefile.tail.mk
diff --git a/src/systemd-hibernate-resume/hibernate-resume-generator.c b/src/systemd-hibernate-resume/hibernate-resume-generator.c
new file mode 100644
index 0000000000..d7ee80d58f
--- /dev/null
+++ b/src/systemd-hibernate-resume/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 "alloc-util.h"
+#include "fstab-util.h"
+#include "log.h"
+#include "mkdir.h"
+#include "proc-cmdline.h"
+#include "special.h"
+#include "string-util.h"
+#include "unit-name.h"
+#include "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) {
+
+        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);
+        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/systemd-hibernate-resume/hibernate-resume.c b/src/systemd-hibernate-resume/hibernate-resume.c
new file mode 100644
index 0000000000..21df3c4461
--- /dev/null
+++ b/src/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 "alloc-util.h"
+#include "fileio.h"
+#include "log.h"
+#include "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;
+}