---
Makefile.am | 6 +-
src/core/shutdown.c | 420 -----------------------------------------
src/power/Makefile | 28 +++
src/power/shutdown.c | 420 +++++++++++++++++++++++++++++++++++++++++
src/power/shutdownd.c | 461 ++++++++++++++++++++++++++++++++++++++++++++++
src/power/sleep.c | 219 ++++++++++++++++++++++
src/shutdownd/Makefile | 1 -
src/shutdownd/shutdownd.c | 461 ----------------------------------------------
src/sleep/Makefile | 1 -
src/sleep/sleep.c | 219 ----------------------
10 files changed, 1131 insertions(+), 1105 deletions(-)
delete mode 100644 src/core/shutdown.c
create mode 100644 src/power/Makefile
create mode 100644 src/power/shutdown.c
create mode 100644 src/power/shutdownd.c
create mode 100644 src/power/sleep.c
delete mode 120000 src/shutdownd/Makefile
delete mode 100644 src/shutdownd/shutdownd.c
delete mode 120000 src/sleep/Makefile
delete mode 100644 src/sleep/sleep.c
diff --git a/Makefile.am b/Makefile.am
index ba63f68..52ec7ef 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2122,7 +2122,7 @@ systemd_update_done_LDADD = \
#
------------------------------------------------------------------------------
systemd_shutdownd_SOURCES = \
- src/shutdownd/shutdownd.c
+ src/power/shutdownd.c
systemd_shutdownd_LDADD = \
libsystemd-label.la \
@@ -2136,7 +2136,7 @@ dist_doc_DATA += \
systemd_shutdown_SOURCES = \
src/core/umount.c \
src/core/umount.h \
- src/core/shutdown.c \
+ src/power/shutdown.c \
src/core/mount-setup.c \
src/core/mount-setup.h \
src/core/killall.h \
@@ -2340,7 +2340,7 @@ systemd_sysctl_LDADD = \
#
------------------------------------------------------------------------------
systemd_sleep_SOURCES = \
- src/sleep/sleep.c
+ src/power/sleep.c
systemd_sleep_LDADD = \
libsystemd-shared.la
diff --git a/src/core/shutdown.c b/src/core/shutdown.c
deleted file mode 100644
index 71f001a..0000000
--- a/src/core/shutdown.c
+++ /dev/null
@@ -1,420 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2010 ProFUSION embedded systems
-
- 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 <sys/mman.h>
-#include <sys/types.h>
-#include <sys/reboot.h>
-#include <linux/reboot.h>
-#include <sys/wait.h>
-#include <sys/stat.h>
-#include <sys/mount.h>
-#include <sys/syscall.h>
-#include <fcntl.h>
-#include <dirent.h>
-#include <errno.h>
-#include <unistd.h>
-#include <signal.h>
-#include <stdbool.h>
-#include <stdlib.h>
-#include <string.h>
-#include <getopt.h>
-
-#include "missing.h"
-#include "log.h"
-#include "fileio.h"
-#include "umount.h"
-#include "util.h"
-#include "mkdir.h"
-#include "virt.h"
-#include "watchdog.h"
-#include "killall.h"
-#include "cgroup-util.h"
-#include "def.h"
-#include "switch-root.h"
-#include "strv.h"
-
-#define FINALIZE_ATTEMPTS 50
-
-static char* arg_verb;
-
-static int parse_argv(int argc, char *argv[]) {
- enum {
- ARG_LOG_LEVEL = 0x100,
- ARG_LOG_TARGET,
- ARG_LOG_COLOR,
- ARG_LOG_LOCATION,
- };
-
- static const struct option options[] = {
- { "log-level", required_argument, NULL, ARG_LOG_LEVEL },
- { "log-target", required_argument, NULL, ARG_LOG_TARGET },
- { "log-color", optional_argument, NULL, ARG_LOG_COLOR },
- { "log-location", optional_argument, NULL, ARG_LOG_LOCATION },
- {}
- };
-
- int c, r;
-
- assert(argc >= 1);
- assert(argv);
-
- /* "-" prevents getopt from permuting argv[] and moving the verb away
- * from argv[1]. Our interface to initrd promises it'll be there. */
- while ((c = getopt_long(argc, argv, "-", options, NULL)) >= 0)
- switch (c) {
-
- case ARG_LOG_LEVEL:
- r = log_set_max_level_from_string(optarg);
- if (r < 0)
- log_error("Failed to parse log level %s,
ignoring.", optarg);
-
- break;
-
- case ARG_LOG_TARGET:
- r = log_set_target_from_string(optarg);
- if (r < 0)
- log_error("Failed to parse log target %s,
ignoring", optarg);
-
- break;
-
- case ARG_LOG_COLOR:
-
- if (optarg) {
- r = log_show_color_from_string(optarg);
- if (r < 0)
- log_error("Failed to parse log color
setting %s, ignoring", optarg);
- } else
- log_show_color(true);
-
- break;
-
- case ARG_LOG_LOCATION:
- if (optarg) {
- r = log_show_location_from_string(optarg);
- if (r < 0)
- log_error("Failed to parse log
location setting %s, ignoring", optarg);
- } else
- log_show_location(true);
-
- break;
-
- case '\001':
- if (!arg_verb)
- arg_verb = optarg;
- else
- log_error("Excess arguments, ignoring");
- break;
-
- case '?':
- return -EINVAL;
-
- default:
- assert_not_reached("Unhandled option code.");
- }
-
- if (!arg_verb) {
- log_error("Verb argument missing.");
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int switch_root_initramfs(void) {
- if (mount("/run/initramfs", "/run/initramfs", NULL, MS_BIND, NULL) < 0)
- return log_error_errno(errno, "Failed to mount bind
/run/initramfs on /run/initramfs: %m");
-
- if (mount(NULL, "/run/initramfs", NULL, MS_PRIVATE, NULL) < 0)
- return log_error_errno(errno, "Failed to make /run/initramfs
private mount: %m");
-
- /* switch_root with MS_BIND, because there might still be processes
lurking around, which have open file descriptors.
- * /run/initramfs/shutdown will take care of these.
- * Also do not detach the old root, because /run/initramfs/shutdown
needs to access it.
- */
- return switch_root("/run/initramfs", "/oldroot", false, MS_BIND);
-}
-
-
-int main(int argc, char *argv[]) {
- bool need_umount, need_swapoff, need_loop_detach, need_dm_detach;
- bool in_container, use_watchdog = false;
- _cleanup_free_ char *cgroup = NULL;
- char *arguments[3];
- unsigned retries;
- int cmd, r;
- static const char* const dirs[] = {SYSTEM_SHUTDOWN_PATH, NULL};
-
- log_parse_environment();
- r = parse_argv(argc, argv);
- if (r < 0)
- goto error;
-
- /* journald will die if not gone yet. The log target defaults
- * to console, but may have been changed by command line options. */
-
- log_close_console(); /* force reopen of /dev/console */
- log_open();
-
- umask(0022);
-
- if (getpid() != 1) {
- log_error("Not executed by init (PID 1).");
- r = -EPERM;
- goto error;
- }
-
- if (streq(arg_verb, "reboot"))
- cmd = RB_AUTOBOOT;
- else if (streq(arg_verb, "poweroff"))
- cmd = RB_POWER_OFF;
- else if (streq(arg_verb, "halt"))
- cmd = RB_HALT_SYSTEM;
- else if (streq(arg_verb, "kexec"))
- cmd = LINUX_REBOOT_CMD_KEXEC;
- else {
- r = -EINVAL;
- log_error("Unknown action '%s'.", arg_verb);
- goto error;
- }
-
- cg_get_root_path(&cgroup);
-
- use_watchdog = !!getenv("WATCHDOG_USEC");
-
- /* lock us into memory */
- mlockall(MCL_CURRENT|MCL_FUTURE);
-
- log_info("Sending SIGTERM to remaining processes...");
- broadcast_signal(SIGTERM, true, true);
-
- log_info("Sending SIGKILL to remaining processes...");
- broadcast_signal(SIGKILL, true, false);
-
- in_container = detect_container(NULL) > 0;
-
- need_umount = !in_container;
- need_swapoff = !in_container;
- need_loop_detach = !in_container;
- need_dm_detach = !in_container;
-
- /* Unmount all mountpoints, swaps, and loopback devices */
- for (retries = 0; retries < FINALIZE_ATTEMPTS; retries++) {
- bool changed = false;
-
- if (use_watchdog)
- watchdog_ping();
-
- /* Let's trim the cgroup tree on each iteration so
- that we leave an empty cgroup tree around, so that
- container managers get a nice notify event when we
- are down */
- if (cgroup)
- cg_trim(SYSTEMD_CGROUP_CONTROLLER, cgroup, false);
-
- if (need_umount) {
- log_info("Unmounting file systems.");
- r = umount_all(&changed);
- if (r == 0) {
- need_umount = false;
- log_info("All filesystems unmounted.");
- } else if (r > 0)
- log_info("Not all file systems unmounted, %d
left.", r);
- else
- log_error_errno(r, "Failed to unmount file
systems: %m");
- }
-
- if (need_swapoff) {
- log_info("Deactivating swaps.");
- r = swapoff_all(&changed);
- if (r == 0) {
- need_swapoff = false;
- log_info("All swaps deactivated.");
- } else if (r > 0)
- log_info("Not all swaps deactivated, %d
left.", r);
- else
- log_error_errno(r, "Failed to deactivate
swaps: %m");
- }
-
- if (need_loop_detach) {
- log_info("Detaching loop devices.");
- r = loopback_detach_all(&changed);
- if (r == 0) {
- need_loop_detach = false;
- log_info("All loop devices detached.");
- } else if (r > 0)
- log_info("Not all loop devices detached, %d
left.", r);
- else
- log_error_errno(r, "Failed to detach loop
devices: %m");
- }
-
- if (need_dm_detach) {
- log_info("Detaching DM devices.");
- r = dm_detach_all(&changed);
- if (r == 0) {
- need_dm_detach = false;
- log_info("All DM devices detached.");
- } else if (r > 0)
- log_info("Not all DM devices detached, %d
left.", r);
- else
- log_error_errno(r, "Failed to detach DM
devices: %m");
- }
-
- if (!need_umount && !need_swapoff && !need_loop_detach &&
!need_dm_detach) {
- if (retries > 0)
- log_info("All filesystems, swaps, loop
devices, DM devices detached.");
- /* Yay, done */
- goto initrd_jump;
- }
-
- /* If in this iteration we didn't manage to
- * unmount/deactivate anything, we simply give up */
- if (!changed) {
- log_info("Cannot finalize remaining%s%s%s%s
continuing.",
- need_umount ? " file systems," : "",
- need_swapoff ? " swap devices," : "",
- need_loop_detach ? " loop devices," : "",
- need_dm_detach ? " DM devices," : "");
- goto initrd_jump;
- }
-
- log_debug("After %u retries, couldn't finalize remaining
%s%s%s%s trying again.",
- retries + 1,
- need_umount ? " file systems," : "",
- need_swapoff ? " swap devices," : "",
- need_loop_detach ? " loop devices," : "",
- need_dm_detach ? " DM devices," : "");
- }
-
- log_error("Too many iterations, giving up.");
-
- initrd_jump:
-
- arguments[0] = NULL;
- arguments[1] = arg_verb;
- arguments[2] = NULL;
- execute_directories(dirs, DEFAULT_TIMEOUT_USEC, arguments);
-
- if (!in_container && !in_initrd() &&
- access("/run/initramfs/shutdown", X_OK) == 0) {
- r = switch_root_initramfs();
- if (r >= 0) {
- argv[0] = (char*) "/shutdown";
-
- setsid();
- make_console_stdio();
-
- log_info("Successfully changed into root pivot.\n"
- "Returning to initrd...");
-
- execv("/shutdown", argv);
- log_error_errno(errno, "Failed to execute shutdown
binary: %m");
- } else
- log_error_errno(r, "Failed to switch root to
\"/run/initramfs\": %m");
-
- }
-
- if (need_umount || need_swapoff || need_loop_detach || need_dm_detach)
- log_error("Failed to finalize %s%s%s%s ignoring",
- need_umount ? " file systems," : "",
- need_swapoff ? " swap devices," : "",
- need_loop_detach ? " loop devices," : "",
- need_dm_detach ? " DM devices," : "");
-
- /* The kernel will automaticall flush ATA disks and suchlike
- * on reboot(), but the file systems need to be synce'd
- * explicitly in advance. So let's do this here, but not
- * needlessly slow down containers. */
- if (!in_container)
- sync();
-
- switch (cmd) {
-
- case LINUX_REBOOT_CMD_KEXEC:
-
- if (!in_container) {
- /* We cheat and exec kexec to avoid doing all its work
*/
- pid_t pid;
-
- log_info("Rebooting with kexec.");
-
- pid = fork();
- if (pid < 0)
- log_error_errno(errno, "Failed to fork: %m");
- else if (pid == 0) {
-
- const char * const args[] = {
- KEXEC, "-e", NULL
- };
-
- /* Child */
-
- execv(args[0], (char * const *) args);
- _exit(EXIT_FAILURE);
- } else
- wait_for_terminate_and_warn("kexec", pid,
true);
- }
-
- cmd = RB_AUTOBOOT;
- /* Fall through */
-
- case RB_AUTOBOOT:
-
- if (!in_container) {
- _cleanup_free_ char *param = NULL;
-
- if (read_one_line_file(REBOOT_PARAM_FILE, ¶m) >=
0) {
- log_info("Rebooting with argument '%s'.",
param);
- syscall(SYS_reboot, LINUX_REBOOT_MAGIC1,
LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, param);
- }
- }
-
- log_info("Rebooting.");
- break;
-
- case RB_POWER_OFF:
- log_info("Powering off.");
- break;
-
- case RB_HALT_SYSTEM:
- log_info("Halting system.");
- break;
-
- default:
- assert_not_reached("Unknown magic");
- }
-
- reboot(cmd);
- if (errno == EPERM && in_container) {
- /* If we are in a container, and we lacked
- * CAP_SYS_BOOT just exit, this will kill our
- * container for good. */
- log_info("Exiting container.");
- exit(0);
- }
-
- log_error_errno(errno, "Failed to invoke reboot(): %m");
- r = -errno;
-
- error:
- log_emergency_errno(r, "Critical error while doing system shutdown:
%m");
-
- freeze();
-}
diff --git a/src/power/Makefile b/src/power/Makefile
new file mode 100644
index 0000000..9d07505
--- /dev/null
+++ b/src/power/Makefile
@@ -0,0 +1,28 @@
+# 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/>.
+
+# This file is a dirty trick to simplify compilation from within
+# emacs. This file is not intended to be distributed. So, don't touch
+# it, even better ignore it!
+
+all:
+ $(MAKE) -C ..
+
+clean:
+ $(MAKE) -C .. clean
+
+.PHONY: all clean
diff --git a/src/power/shutdown.c b/src/power/shutdown.c
new file mode 100644
index 0000000..71f001a
--- /dev/null
+++ b/src/power/shutdown.c
@@ -0,0 +1,420 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 ProFUSION embedded systems
+
+ 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 <sys/mman.h>
+#include <sys/types.h>
+#include <sys/reboot.h>
+#include <linux/reboot.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <sys/syscall.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <errno.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+
+#include "missing.h"
+#include "log.h"
+#include "fileio.h"
+#include "umount.h"
+#include "util.h"
+#include "mkdir.h"
+#include "virt.h"
+#include "watchdog.h"
+#include "killall.h"
+#include "cgroup-util.h"
+#include "def.h"
+#include "switch-root.h"
+#include "strv.h"
+
+#define FINALIZE_ATTEMPTS 50
+
+static char* arg_verb;
+
+static int parse_argv(int argc, char *argv[]) {
+ enum {
+ ARG_LOG_LEVEL = 0x100,
+ ARG_LOG_TARGET,
+ ARG_LOG_COLOR,
+ ARG_LOG_LOCATION,
+ };
+
+ static const struct option options[] = {
+ { "log-level", required_argument, NULL, ARG_LOG_LEVEL },
+ { "log-target", required_argument, NULL, ARG_LOG_TARGET },
+ { "log-color", optional_argument, NULL, ARG_LOG_COLOR },
+ { "log-location", optional_argument, NULL, ARG_LOG_LOCATION },
+ {}
+ };
+
+ int c, r;
+
+ assert(argc >= 1);
+ assert(argv);
+
+ /* "-" prevents getopt from permuting argv[] and moving the verb away
+ * from argv[1]. Our interface to initrd promises it'll be there. */
+ while ((c = getopt_long(argc, argv, "-", options, NULL)) >= 0)
+ switch (c) {
+
+ case ARG_LOG_LEVEL:
+ r = log_set_max_level_from_string(optarg);
+ if (r < 0)
+ log_error("Failed to parse log level %s,
ignoring.", optarg);
+
+ break;
+
+ case ARG_LOG_TARGET:
+ r = log_set_target_from_string(optarg);
+ if (r < 0)
+ log_error("Failed to parse log target %s,
ignoring", optarg);
+
+ break;
+
+ case ARG_LOG_COLOR:
+
+ if (optarg) {
+ r = log_show_color_from_string(optarg);
+ if (r < 0)
+ log_error("Failed to parse log color
setting %s, ignoring", optarg);
+ } else
+ log_show_color(true);
+
+ break;
+
+ case ARG_LOG_LOCATION:
+ if (optarg) {
+ r = log_show_location_from_string(optarg);
+ if (r < 0)
+ log_error("Failed to parse log
location setting %s, ignoring", optarg);
+ } else
+ log_show_location(true);
+
+ break;
+
+ case '\001':
+ if (!arg_verb)
+ arg_verb = optarg;
+ else
+ log_error("Excess arguments, ignoring");
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ assert_not_reached("Unhandled option code.");
+ }
+
+ if (!arg_verb) {
+ log_error("Verb argument missing.");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int switch_root_initramfs(void) {
+ if (mount("/run/initramfs", "/run/initramfs", NULL, MS_BIND, NULL) < 0)
+ return log_error_errno(errno, "Failed to mount bind
/run/initramfs on /run/initramfs: %m");
+
+ if (mount(NULL, "/run/initramfs", NULL, MS_PRIVATE, NULL) < 0)
+ return log_error_errno(errno, "Failed to make /run/initramfs
private mount: %m");
+
+ /* switch_root with MS_BIND, because there might still be processes
lurking around, which have open file descriptors.
+ * /run/initramfs/shutdown will take care of these.
+ * Also do not detach the old root, because /run/initramfs/shutdown
needs to access it.
+ */
+ return switch_root("/run/initramfs", "/oldroot", false, MS_BIND);
+}
+
+
+int main(int argc, char *argv[]) {
+ bool need_umount, need_swapoff, need_loop_detach, need_dm_detach;
+ bool in_container, use_watchdog = false;
+ _cleanup_free_ char *cgroup = NULL;
+ char *arguments[3];
+ unsigned retries;
+ int cmd, r;
+ static const char* const dirs[] = {SYSTEM_SHUTDOWN_PATH, NULL};
+
+ log_parse_environment();
+ r = parse_argv(argc, argv);
+ if (r < 0)
+ goto error;
+
+ /* journald will die if not gone yet. The log target defaults
+ * to console, but may have been changed by command line options. */
+
+ log_close_console(); /* force reopen of /dev/console */
+ log_open();
+
+ umask(0022);
+
+ if (getpid() != 1) {
+ log_error("Not executed by init (PID 1).");
+ r = -EPERM;
+ goto error;
+ }
+
+ if (streq(arg_verb, "reboot"))
+ cmd = RB_AUTOBOOT;
+ else if (streq(arg_verb, "poweroff"))
+ cmd = RB_POWER_OFF;
+ else if (streq(arg_verb, "halt"))
+ cmd = RB_HALT_SYSTEM;
+ else if (streq(arg_verb, "kexec"))
+ cmd = LINUX_REBOOT_CMD_KEXEC;
+ else {
+ r = -EINVAL;
+ log_error("Unknown action '%s'.", arg_verb);
+ goto error;
+ }
+
+ cg_get_root_path(&cgroup);
+
+ use_watchdog = !!getenv("WATCHDOG_USEC");
+
+ /* lock us into memory */
+ mlockall(MCL_CURRENT|MCL_FUTURE);
+
+ log_info("Sending SIGTERM to remaining processes...");
+ broadcast_signal(SIGTERM, true, true);
+
+ log_info("Sending SIGKILL to remaining processes...");
+ broadcast_signal(SIGKILL, true, false);
+
+ in_container = detect_container(NULL) > 0;
+
+ need_umount = !in_container;
+ need_swapoff = !in_container;
+ need_loop_detach = !in_container;
+ need_dm_detach = !in_container;
+
+ /* Unmount all mountpoints, swaps, and loopback devices */
+ for (retries = 0; retries < FINALIZE_ATTEMPTS; retries++) {
+ bool changed = false;
+
+ if (use_watchdog)
+ watchdog_ping();
+
+ /* Let's trim the cgroup tree on each iteration so
+ that we leave an empty cgroup tree around, so that
+ container managers get a nice notify event when we
+ are down */
+ if (cgroup)
+ cg_trim(SYSTEMD_CGROUP_CONTROLLER, cgroup, false);
+
+ if (need_umount) {
+ log_info("Unmounting file systems.");
+ r = umount_all(&changed);
+ if (r == 0) {
+ need_umount = false;
+ log_info("All filesystems unmounted.");
+ } else if (r > 0)
+ log_info("Not all file systems unmounted, %d
left.", r);
+ else
+ log_error_errno(r, "Failed to unmount file
systems: %m");
+ }
+
+ if (need_swapoff) {
+ log_info("Deactivating swaps.");
+ r = swapoff_all(&changed);
+ if (r == 0) {
+ need_swapoff = false;
+ log_info("All swaps deactivated.");
+ } else if (r > 0)
+ log_info("Not all swaps deactivated, %d
left.", r);
+ else
+ log_error_errno(r, "Failed to deactivate
swaps: %m");
+ }
+
+ if (need_loop_detach) {
+ log_info("Detaching loop devices.");
+ r = loopback_detach_all(&changed);
+ if (r == 0) {
+ need_loop_detach = false;
+ log_info("All loop devices detached.");
+ } else if (r > 0)
+ log_info("Not all loop devices detached, %d
left.", r);
+ else
+ log_error_errno(r, "Failed to detach loop
devices: %m");
+ }
+
+ if (need_dm_detach) {
+ log_info("Detaching DM devices.");
+ r = dm_detach_all(&changed);
+ if (r == 0) {
+ need_dm_detach = false;
+ log_info("All DM devices detached.");
+ } else if (r > 0)
+ log_info("Not all DM devices detached, %d
left.", r);
+ else
+ log_error_errno(r, "Failed to detach DM
devices: %m");
+ }
+
+ if (!need_umount && !need_swapoff && !need_loop_detach &&
!need_dm_detach) {
+ if (retries > 0)
+ log_info("All filesystems, swaps, loop
devices, DM devices detached.");
+ /* Yay, done */
+ goto initrd_jump;
+ }
+
+ /* If in this iteration we didn't manage to
+ * unmount/deactivate anything, we simply give up */
+ if (!changed) {
+ log_info("Cannot finalize remaining%s%s%s%s
continuing.",
+ need_umount ? " file systems," : "",
+ need_swapoff ? " swap devices," : "",
+ need_loop_detach ? " loop devices," : "",
+ need_dm_detach ? " DM devices," : "");
+ goto initrd_jump;
+ }
+
+ log_debug("After %u retries, couldn't finalize remaining
%s%s%s%s trying again.",
+ retries + 1,
+ need_umount ? " file systems," : "",
+ need_swapoff ? " swap devices," : "",
+ need_loop_detach ? " loop devices," : "",
+ need_dm_detach ? " DM devices," : "");
+ }
+
+ log_error("Too many iterations, giving up.");
+
+ initrd_jump:
+
+ arguments[0] = NULL;
+ arguments[1] = arg_verb;
+ arguments[2] = NULL;
+ execute_directories(dirs, DEFAULT_TIMEOUT_USEC, arguments);
+
+ if (!in_container && !in_initrd() &&
+ access("/run/initramfs/shutdown", X_OK) == 0) {
+ r = switch_root_initramfs();
+ if (r >= 0) {
+ argv[0] = (char*) "/shutdown";
+
+ setsid();
+ make_console_stdio();
+
+ log_info("Successfully changed into root pivot.\n"
+ "Returning to initrd...");
+
+ execv("/shutdown", argv);
+ log_error_errno(errno, "Failed to execute shutdown
binary: %m");
+ } else
+ log_error_errno(r, "Failed to switch root to
\"/run/initramfs\": %m");
+
+ }
+
+ if (need_umount || need_swapoff || need_loop_detach || need_dm_detach)
+ log_error("Failed to finalize %s%s%s%s ignoring",
+ need_umount ? " file systems," : "",
+ need_swapoff ? " swap devices," : "",
+ need_loop_detach ? " loop devices," : "",
+ need_dm_detach ? " DM devices," : "");
+
+ /* The kernel will automaticall flush ATA disks and suchlike
+ * on reboot(), but the file systems need to be synce'd
+ * explicitly in advance. So let's do this here, but not
+ * needlessly slow down containers. */
+ if (!in_container)
+ sync();
+
+ switch (cmd) {
+
+ case LINUX_REBOOT_CMD_KEXEC:
+
+ if (!in_container) {
+ /* We cheat and exec kexec to avoid doing all its work
*/
+ pid_t pid;
+
+ log_info("Rebooting with kexec.");
+
+ pid = fork();
+ if (pid < 0)
+ log_error_errno(errno, "Failed to fork: %m");
+ else if (pid == 0) {
+
+ const char * const args[] = {
+ KEXEC, "-e", NULL
+ };
+
+ /* Child */
+
+ execv(args[0], (char * const *) args);
+ _exit(EXIT_FAILURE);
+ } else
+ wait_for_terminate_and_warn("kexec", pid,
true);
+ }
+
+ cmd = RB_AUTOBOOT;
+ /* Fall through */
+
+ case RB_AUTOBOOT:
+
+ if (!in_container) {
+ _cleanup_free_ char *param = NULL;
+
+ if (read_one_line_file(REBOOT_PARAM_FILE, ¶m) >=
0) {
+ log_info("Rebooting with argument '%s'.",
param);
+ syscall(SYS_reboot, LINUX_REBOOT_MAGIC1,
LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, param);
+ }
+ }
+
+ log_info("Rebooting.");
+ break;
+
+ case RB_POWER_OFF:
+ log_info("Powering off.");
+ break;
+
+ case RB_HALT_SYSTEM:
+ log_info("Halting system.");
+ break;
+
+ default:
+ assert_not_reached("Unknown magic");
+ }
+
+ reboot(cmd);
+ if (errno == EPERM && in_container) {
+ /* If we are in a container, and we lacked
+ * CAP_SYS_BOOT just exit, this will kill our
+ * container for good. */
+ log_info("Exiting container.");
+ exit(0);
+ }
+
+ log_error_errno(errno, "Failed to invoke reboot(): %m");
+ r = -errno;
+
+ error:
+ log_emergency_errno(r, "Critical error while doing system shutdown:
%m");
+
+ freeze();
+}
diff --git a/src/power/shutdownd.c b/src/power/shutdownd.c
new file mode 100644
index 0000000..60a6468
--- /dev/null
+++ b/src/power/shutdownd.c
@@ -0,0 +1,461 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ 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 <sys/socket.h>
+#include <poll.h>
+#include <sys/types.h>
+#include <sys/timerfd.h>
+#include <assert.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stddef.h>
+
+#include "systemd/sd-daemon.h"
+#include "systemd/sd-shutdown.h"
+
+#include "log.h"
+#include "macro.h"
+#include "util.h"
+#include "utmp-wtmp.h"
+#include "mkdir.h"
+#include "fileio.h"
+
+union shutdown_buffer {
+ struct sd_shutdown_command command;
+ char space[offsetof(struct sd_shutdown_command, wall_message) +
LINE_MAX];
+};
+
+static int read_packet(int fd, union shutdown_buffer *_b) {
+ struct ucred *ucred;
+ ssize_t n;
+
+ union shutdown_buffer b; /* We maintain our own copy here, in
+ * order not to corrupt the last message */
+ struct iovec iovec = {
+ .iov_base = &b,
+ .iov_len = sizeof(b) - 1,
+ };
+ union {
+ struct cmsghdr cmsghdr;
+ uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
+ } control = {};
+ struct msghdr msghdr = {
+ .msg_iov = &iovec,
+ .msg_iovlen = 1,
+ .msg_control = &control,
+ .msg_controllen = sizeof(control),
+ };
+
+ assert(fd >= 0);
+ assert(_b);
+
+ n = recvmsg(fd, &msghdr, MSG_DONTWAIT);
+ if (n < 0) {
+ if (errno == EAGAIN || errno == EINTR)
+ return 0;
+
+ log_error_errno(errno, "recvmsg(): %m");
+ return -errno;
+ }
+
+ cmsg_close_all(&msghdr);
+
+ if (n == 0) {
+ log_error("Short read");
+ return -EIO;
+ }
+
+ if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) ||
+ control.cmsghdr.cmsg_level != SOL_SOCKET ||
+ control.cmsghdr.cmsg_type != SCM_CREDENTIALS ||
+ control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) {
+ log_warning("Received message without credentials. Ignoring.");
+ return 0;
+ }
+
+ ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
+ if (ucred->uid != 0) {
+ log_warning("Got request from unprivileged user. Ignoring.");
+ return 0;
+ }
+
+ if ((size_t) n < offsetof(struct sd_shutdown_command, wall_message)) {
+ log_warning("Message has invalid size. Ignoring.");
+ return 0;
+ }
+
+ if (b.command.mode != SD_SHUTDOWN_NONE &&
+ b.command.mode != SD_SHUTDOWN_REBOOT &&
+ b.command.mode != SD_SHUTDOWN_POWEROFF &&
+ b.command.mode != SD_SHUTDOWN_HALT &&
+ b.command.mode != SD_SHUTDOWN_KEXEC) {
+ log_warning("Message has invalid mode. Ignoring.");
+ return 0;
+ }
+
+ b.space[n] = 0;
+
+ *_b = b;
+ return 1;
+}
+
+static void warn_wall(usec_t n, struct sd_shutdown_command *c) {
+ char date[FORMAT_TIMESTAMP_MAX];
+ const char *prefix;
+ _cleanup_free_ char *l = NULL;
+
+ assert(c);
+ assert(c->warn_wall);
+
+ if (n >= c->usec)
+ return;
+
+ if (c->mode == SD_SHUTDOWN_HALT)
+ prefix = "The system is going down for system halt at ";
+ else if (c->mode == SD_SHUTDOWN_POWEROFF)
+ prefix = "The system is going down for power-off at ";
+ else if (c->mode == SD_SHUTDOWN_REBOOT)
+ prefix = "The system is going down for reboot at ";
+ else if (c->mode == SD_SHUTDOWN_KEXEC)
+ prefix = "The system is going down for kexec reboot at ";
+ else if (c->mode == SD_SHUTDOWN_NONE)
+ prefix = "The system shutdown has been cancelled at ";
+ else
+ assert_not_reached("Unknown mode!");
+
+ if (asprintf(&l, "%s%s%s%s!", c->wall_message, c->wall_message[0] ?
"\n" : "",
+ prefix, format_timestamp(date, sizeof(date), c->usec)) >=
0)
+ utmp_wall(l, NULL, NULL);
+ else
+ log_error("Failed to allocate wall message");
+}
+
+_const_ static usec_t when_wall(usec_t n, usec_t elapse) {
+
+ static const struct {
+ usec_t delay;
+ usec_t interval;
+ } table[] = {
+ { 0, USEC_PER_MINUTE },
+ { 10 * USEC_PER_MINUTE, 15 * USEC_PER_MINUTE },
+ { USEC_PER_HOUR, 30 * USEC_PER_MINUTE },
+ { 3 * USEC_PER_HOUR, USEC_PER_HOUR },
+ };
+
+ usec_t left, sub;
+ unsigned i = ELEMENTSOF(table) - 1;
+
+ /* If the time is already passed, then don't announce */
+ if (n >= elapse)
+ return 0;
+
+ left = elapse - n;
+ while (left < table[i].delay)
+ i--;
+ sub = (left / table[i].interval) * table[i].interval;
+
+ assert(sub < elapse);
+ return elapse - sub;
+}
+
+static usec_t when_nologin(usec_t elapse) {
+ return elapse > 5*USEC_PER_MINUTE ? elapse - 5*USEC_PER_MINUTE : 1;
+}
+
+static const char *mode_to_string(enum sd_shutdown_mode m) {
+ switch (m) {
+ case SD_SHUTDOWN_REBOOT:
+ return "reboot";
+ case SD_SHUTDOWN_POWEROFF:
+ return "poweroff";
+ case SD_SHUTDOWN_HALT:
+ return "halt";
+ case SD_SHUTDOWN_KEXEC:
+ return "kexec";
+ default:
+ return NULL;
+ }
+}
+
+static int update_schedule_file(struct sd_shutdown_command *c) {
+ int r;
+ _cleanup_fclose_ FILE *f = NULL;
+ _cleanup_free_ char *t = NULL, *temp_path = NULL;
+
+ assert(c);
+
+ r = mkdir_safe_label("/run/systemd/shutdown", 0755, 0, 0);
+ if (r < 0)
+ return log_error_errno(r, "Failed to create shutdown
subdirectory: %m");
+
+ t = cescape(c->wall_message);
+ if (!t)
+ return log_oom();
+
+ r = fopen_temporary("/run/systemd/shutdown/scheduled", &f, &temp_path);
+ if (r < 0)
+ return log_error_errno(r, "Failed to save information about
scheduled shutdowns: %m");
+
+ fchmod(fileno(f), 0644);
+
+ fprintf(f,
+ "USEC="USEC_FMT"\n"
+ "WARN_WALL=%i\n"
+ "MODE=%s\n",
+ c->usec,
+ c->warn_wall,
+ mode_to_string(c->mode));
+
+ if (c->dry_run)
+ fputs("DRY_RUN=1\n", f);
+
+ if (!isempty(t))
+ fprintf(f, "WALL_MESSAGE=%s\n", t);
+
+ fflush(f);
+
+ if (ferror(f) || rename(temp_path, "/run/systemd/shutdown/scheduled")
< 0) {
+ log_error_errno(errno, "Failed to write information about
scheduled shutdowns: %m");
+ r = -errno;
+
+ unlink(temp_path);
+ unlink("/run/systemd/shutdown/scheduled");
+ }
+
+ return r;
+}
+
+static bool scheduled(struct sd_shutdown_command *c) {
+ return c->usec > 0 && c->mode != SD_SHUTDOWN_NONE;
+}
+
+int main(int argc, char *argv[]) {
+ enum {
+ FD_SOCKET,
+ FD_WALL_TIMER,
+ FD_NOLOGIN_TIMER,
+ FD_SHUTDOWN_TIMER,
+ _FD_MAX
+ };
+
+ int r = EXIT_FAILURE, n_fds;
+ union shutdown_buffer b = {};
+ struct pollfd pollfd[_FD_MAX] = {};
+ bool exec_shutdown = false, unlink_nologin = false;
+ unsigned i;
+
+ if (getppid() != 1) {
+ log_error("This program should be invoked by init only.");
+ return EXIT_FAILURE;
+ }
+
+ if (argc > 1) {
+ log_error("This program does not take arguments.");
+ return EXIT_FAILURE;
+ }
+
+ log_set_target(LOG_TARGET_AUTO);
+ log_parse_environment();
+ log_open();
+
+ umask(0022);
+
+ n_fds = sd_listen_fds(true);
+ if (n_fds < 0) {
+ log_error_errno(r, "Failed to read listening file descriptors
from environment: %m");
+ return EXIT_FAILURE;
+ }
+
+ if (n_fds != 1) {
+ log_error("Need exactly one file descriptor.");
+ return EXIT_FAILURE;
+ }
+
+ pollfd[FD_SOCKET].fd = SD_LISTEN_FDS_START;
+ pollfd[FD_SOCKET].events = POLLIN;
+
+ for (i = FD_WALL_TIMER; i < _FD_MAX; i++) {
+ pollfd[i].events = POLLIN;
+ pollfd[i].fd = timerfd_create(CLOCK_REALTIME,
TFD_NONBLOCK|TFD_CLOEXEC);
+ if (pollfd[i].fd < 0) {
+ log_error_errno(errno, "timerfd_create(): %m");
+ goto finish;
+ }
+ }
+
+ log_debug("systemd-shutdownd running as pid "PID_FMT, getpid());
+
+ sd_notify(false,
+ "READY=1\n"
+ "STATUS=Processing requests...");
+
+ for (;;) {
+ int k;
+ usec_t n;
+
+ k = poll(pollfd, _FD_MAX, scheduled(&b.command) ? -1 : 0);
+ if (k < 0) {
+
+ if (errno == EAGAIN || errno == EINTR)
+ continue;
+
+ log_error_errno(errno, "poll(): %m");
+ goto finish;
+ }
+
+ /* Exit on idle */
+ if (k == 0)
+ break;
+
+ n = now(CLOCK_REALTIME);
+
+ if (pollfd[FD_SOCKET].revents) {
+
+ k = read_packet(pollfd[FD_SOCKET].fd, &b);
+ if (k < 0)
+ goto finish;
+ else if (k > 0) {
+ struct itimerspec its;
+ char date[FORMAT_TIMESTAMP_MAX];
+
+ if (!scheduled(&b.command)) {
+ log_info("Shutdown canceled.");
+ if (b.command.warn_wall)
+ warn_wall(0, &b.command);
+ break;
+ }
+
+ zero(its);
+ if (b.command.warn_wall) {
+ /* Send wall messages every so often */
+ timespec_store(&its.it_value,
when_wall(n, b.command.usec));
+
+ /* Warn immediately if less than 15
minutes are left */
+ if (n < b.command.usec &&
+ n + 15*USEC_PER_MINUTE >=
b.command.usec)
+ warn_wall(n, &b.command);
+ }
+ if (timerfd_settime(pollfd[FD_WALL_TIMER].fd,
TFD_TIMER_ABSTIME, &its, NULL) < 0) {
+ log_error_errno(errno,
"timerfd_settime(): %m");
+ goto finish;
+ }
+
+ /* Disallow logins 5 minutes prior to shutdown
*/
+ zero(its);
+ timespec_store(&its.it_value,
when_nologin(b.command.usec));
+ if
(timerfd_settime(pollfd[FD_NOLOGIN_TIMER].fd, TFD_TIMER_ABSTIME, &its, NULL) <
0) {
+ log_error_errno(errno,
"timerfd_settime(): %m");
+ goto finish;
+ }
+
+ /* Shutdown after the specified time is
reached */
+ zero(its);
+ timespec_store(&its.it_value, b.command.usec);
+ if
(timerfd_settime(pollfd[FD_SHUTDOWN_TIMER].fd, TFD_TIMER_ABSTIME, &its, NULL) <
0) {
+ log_error_errno(errno,
"timerfd_settime(): %m");
+ goto finish;
+ }
+
+ update_schedule_file(&b.command);
+
+ sd_notifyf(false,
+ "STATUS=Shutting down at %s
(%s)...",
+ format_timestamp(date,
sizeof(date), b.command.usec),
+ mode_to_string(b.command.mode));
+
+ log_info("Shutting down at %s (%s)...", date,
mode_to_string(b.command.mode));
+ }
+ }
+
+ if (pollfd[FD_WALL_TIMER].revents) {
+ struct itimerspec its = {};
+
+ warn_wall(n, &b.command);
+ flush_fd(pollfd[FD_WALL_TIMER].fd);
+
+ /* Restart timer */
+ timespec_store(&its.it_value, when_wall(n,
b.command.usec));
+ if (timerfd_settime(pollfd[FD_WALL_TIMER].fd,
TFD_TIMER_ABSTIME, &its, NULL) < 0) {
+ log_error_errno(errno, "timerfd_settime():
%m");
+ goto finish;
+ }
+ }
+
+ if (pollfd[FD_NOLOGIN_TIMER].revents) {
+ int e;
+
+ log_info("Creating /run/nologin, blocking further
logins...");
+
+ e = write_string_file_atomic("/run/nologin", "System
is going down.");
+ if (e < 0)
+ log_error_errno(e, "Failed to create
/run/nologin: %m");
+ else
+ unlink_nologin = true;
+
+ flush_fd(pollfd[FD_NOLOGIN_TIMER].fd);
+ }
+
+ if (pollfd[FD_SHUTDOWN_TIMER].revents) {
+ exec_shutdown = true;
+ goto finish;
+ }
+ }
+
+ r = EXIT_SUCCESS;
+
+ log_debug("systemd-shutdownd stopped as pid "PID_FMT, getpid());
+
+finish:
+
+ for (i = 0; i < _FD_MAX; i++)
+ safe_close(pollfd[i].fd);
+
+ if (unlink_nologin)
+ unlink("/run/nologin");
+
+ unlink("/run/systemd/shutdown/scheduled");
+
+ if (exec_shutdown && !b.command.dry_run) {
+ char sw[3];
+
+ sw[0] = '-';
+ sw[1] = b.command.mode;
+ sw[2] = 0;
+
+ execl(SYSTEMCTL_BINARY_PATH,
+ "shutdown",
+ sw,
+ "now",
+ (b.command.warn_wall && b.command.wall_message[0]) ?
b.command.wall_message :
+ (b.command.warn_wall ? NULL : "--no-wall"),
+ NULL);
+
+ log_error_errno(errno, "Failed to execute /sbin/shutdown: %m");
+ }
+
+ sd_notify(false,
+ "STOPPING=\n"
+ "STATUS=Exiting...");
+
+ return r;
+}
diff --git a/src/power/sleep.c b/src/power/sleep.c
new file mode 100644
index 0000000..cc1ffa6
--- /dev/null
+++ b/src/power/sleep.c
@@ -0,0 +1,219 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ 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 <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <getopt.h>
+
+#include "sd-id128.h"
+#include "sd-messages.h"
+#include "log.h"
+#include "util.h"
+#include "strv.h"
+#include "fileio.h"
+#include "build.h"
+#include "sleep-config.h"
+#include "def.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);
+ 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);
+ 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:
+ puts(PACKAGE_STRING);
+ puts(SYSTEMD_FEATURES);
+ return 0 /* done */;
+
+ 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/shutdownd/Makefile b/src/shutdownd/Makefile
deleted file mode 120000
index d0b0e8e..0000000
--- a/src/shutdownd/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../Makefile
\ No newline at end of file
diff --git a/src/shutdownd/shutdownd.c b/src/shutdownd/shutdownd.c
deleted file mode 100644
index 60a6468..0000000
--- a/src/shutdownd/shutdownd.c
+++ /dev/null
@@ -1,461 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- 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 <sys/socket.h>
-#include <poll.h>
-#include <sys/types.h>
-#include <sys/timerfd.h>
-#include <assert.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <stddef.h>
-
-#include "systemd/sd-daemon.h"
-#include "systemd/sd-shutdown.h"
-
-#include "log.h"
-#include "macro.h"
-#include "util.h"
-#include "utmp-wtmp.h"
-#include "mkdir.h"
-#include "fileio.h"
-
-union shutdown_buffer {
- struct sd_shutdown_command command;
- char space[offsetof(struct sd_shutdown_command, wall_message) +
LINE_MAX];
-};
-
-static int read_packet(int fd, union shutdown_buffer *_b) {
- struct ucred *ucred;
- ssize_t n;
-
- union shutdown_buffer b; /* We maintain our own copy here, in
- * order not to corrupt the last message */
- struct iovec iovec = {
- .iov_base = &b,
- .iov_len = sizeof(b) - 1,
- };
- union {
- struct cmsghdr cmsghdr;
- uint8_t buf[CMSG_SPACE(sizeof(struct ucred))];
- } control = {};
- struct msghdr msghdr = {
- .msg_iov = &iovec,
- .msg_iovlen = 1,
- .msg_control = &control,
- .msg_controllen = sizeof(control),
- };
-
- assert(fd >= 0);
- assert(_b);
-
- n = recvmsg(fd, &msghdr, MSG_DONTWAIT);
- if (n < 0) {
- if (errno == EAGAIN || errno == EINTR)
- return 0;
-
- log_error_errno(errno, "recvmsg(): %m");
- return -errno;
- }
-
- cmsg_close_all(&msghdr);
-
- if (n == 0) {
- log_error("Short read");
- return -EIO;
- }
-
- if (msghdr.msg_controllen < CMSG_LEN(sizeof(struct ucred)) ||
- control.cmsghdr.cmsg_level != SOL_SOCKET ||
- control.cmsghdr.cmsg_type != SCM_CREDENTIALS ||
- control.cmsghdr.cmsg_len != CMSG_LEN(sizeof(struct ucred))) {
- log_warning("Received message without credentials. Ignoring.");
- return 0;
- }
-
- ucred = (struct ucred*) CMSG_DATA(&control.cmsghdr);
- if (ucred->uid != 0) {
- log_warning("Got request from unprivileged user. Ignoring.");
- return 0;
- }
-
- if ((size_t) n < offsetof(struct sd_shutdown_command, wall_message)) {
- log_warning("Message has invalid size. Ignoring.");
- return 0;
- }
-
- if (b.command.mode != SD_SHUTDOWN_NONE &&
- b.command.mode != SD_SHUTDOWN_REBOOT &&
- b.command.mode != SD_SHUTDOWN_POWEROFF &&
- b.command.mode != SD_SHUTDOWN_HALT &&
- b.command.mode != SD_SHUTDOWN_KEXEC) {
- log_warning("Message has invalid mode. Ignoring.");
- return 0;
- }
-
- b.space[n] = 0;
-
- *_b = b;
- return 1;
-}
-
-static void warn_wall(usec_t n, struct sd_shutdown_command *c) {
- char date[FORMAT_TIMESTAMP_MAX];
- const char *prefix;
- _cleanup_free_ char *l = NULL;
-
- assert(c);
- assert(c->warn_wall);
-
- if (n >= c->usec)
- return;
-
- if (c->mode == SD_SHUTDOWN_HALT)
- prefix = "The system is going down for system halt at ";
- else if (c->mode == SD_SHUTDOWN_POWEROFF)
- prefix = "The system is going down for power-off at ";
- else if (c->mode == SD_SHUTDOWN_REBOOT)
- prefix = "The system is going down for reboot at ";
- else if (c->mode == SD_SHUTDOWN_KEXEC)
- prefix = "The system is going down for kexec reboot at ";
- else if (c->mode == SD_SHUTDOWN_NONE)
- prefix = "The system shutdown has been cancelled at ";
- else
- assert_not_reached("Unknown mode!");
-
- if (asprintf(&l, "%s%s%s%s!", c->wall_message, c->wall_message[0] ?
"\n" : "",
- prefix, format_timestamp(date, sizeof(date), c->usec)) >=
0)
- utmp_wall(l, NULL, NULL);
- else
- log_error("Failed to allocate wall message");
-}
-
-_const_ static usec_t when_wall(usec_t n, usec_t elapse) {
-
- static const struct {
- usec_t delay;
- usec_t interval;
- } table[] = {
- { 0, USEC_PER_MINUTE },
- { 10 * USEC_PER_MINUTE, 15 * USEC_PER_MINUTE },
- { USEC_PER_HOUR, 30 * USEC_PER_MINUTE },
- { 3 * USEC_PER_HOUR, USEC_PER_HOUR },
- };
-
- usec_t left, sub;
- unsigned i = ELEMENTSOF(table) - 1;
-
- /* If the time is already passed, then don't announce */
- if (n >= elapse)
- return 0;
-
- left = elapse - n;
- while (left < table[i].delay)
- i--;
- sub = (left / table[i].interval) * table[i].interval;
-
- assert(sub < elapse);
- return elapse - sub;
-}
-
-static usec_t when_nologin(usec_t elapse) {
- return elapse > 5*USEC_PER_MINUTE ? elapse - 5*USEC_PER_MINUTE : 1;
-}
-
-static const char *mode_to_string(enum sd_shutdown_mode m) {
- switch (m) {
- case SD_SHUTDOWN_REBOOT:
- return "reboot";
- case SD_SHUTDOWN_POWEROFF:
- return "poweroff";
- case SD_SHUTDOWN_HALT:
- return "halt";
- case SD_SHUTDOWN_KEXEC:
- return "kexec";
- default:
- return NULL;
- }
-}
-
-static int update_schedule_file(struct sd_shutdown_command *c) {
- int r;
- _cleanup_fclose_ FILE *f = NULL;
- _cleanup_free_ char *t = NULL, *temp_path = NULL;
-
- assert(c);
-
- r = mkdir_safe_label("/run/systemd/shutdown", 0755, 0, 0);
- if (r < 0)
- return log_error_errno(r, "Failed to create shutdown
subdirectory: %m");
-
- t = cescape(c->wall_message);
- if (!t)
- return log_oom();
-
- r = fopen_temporary("/run/systemd/shutdown/scheduled", &f, &temp_path);
- if (r < 0)
- return log_error_errno(r, "Failed to save information about
scheduled shutdowns: %m");
-
- fchmod(fileno(f), 0644);
-
- fprintf(f,
- "USEC="USEC_FMT"\n"
- "WARN_WALL=%i\n"
- "MODE=%s\n",
- c->usec,
- c->warn_wall,
- mode_to_string(c->mode));
-
- if (c->dry_run)
- fputs("DRY_RUN=1\n", f);
-
- if (!isempty(t))
- fprintf(f, "WALL_MESSAGE=%s\n", t);
-
- fflush(f);
-
- if (ferror(f) || rename(temp_path, "/run/systemd/shutdown/scheduled")
< 0) {
- log_error_errno(errno, "Failed to write information about
scheduled shutdowns: %m");
- r = -errno;
-
- unlink(temp_path);
- unlink("/run/systemd/shutdown/scheduled");
- }
-
- return r;
-}
-
-static bool scheduled(struct sd_shutdown_command *c) {
- return c->usec > 0 && c->mode != SD_SHUTDOWN_NONE;
-}
-
-int main(int argc, char *argv[]) {
- enum {
- FD_SOCKET,
- FD_WALL_TIMER,
- FD_NOLOGIN_TIMER,
- FD_SHUTDOWN_TIMER,
- _FD_MAX
- };
-
- int r = EXIT_FAILURE, n_fds;
- union shutdown_buffer b = {};
- struct pollfd pollfd[_FD_MAX] = {};
- bool exec_shutdown = false, unlink_nologin = false;
- unsigned i;
-
- if (getppid() != 1) {
- log_error("This program should be invoked by init only.");
- return EXIT_FAILURE;
- }
-
- if (argc > 1) {
- log_error("This program does not take arguments.");
- return EXIT_FAILURE;
- }
-
- log_set_target(LOG_TARGET_AUTO);
- log_parse_environment();
- log_open();
-
- umask(0022);
-
- n_fds = sd_listen_fds(true);
- if (n_fds < 0) {
- log_error_errno(r, "Failed to read listening file descriptors
from environment: %m");
- return EXIT_FAILURE;
- }
-
- if (n_fds != 1) {
- log_error("Need exactly one file descriptor.");
- return EXIT_FAILURE;
- }
-
- pollfd[FD_SOCKET].fd = SD_LISTEN_FDS_START;
- pollfd[FD_SOCKET].events = POLLIN;
-
- for (i = FD_WALL_TIMER; i < _FD_MAX; i++) {
- pollfd[i].events = POLLIN;
- pollfd[i].fd = timerfd_create(CLOCK_REALTIME,
TFD_NONBLOCK|TFD_CLOEXEC);
- if (pollfd[i].fd < 0) {
- log_error_errno(errno, "timerfd_create(): %m");
- goto finish;
- }
- }
-
- log_debug("systemd-shutdownd running as pid "PID_FMT, getpid());
-
- sd_notify(false,
- "READY=1\n"
- "STATUS=Processing requests...");
-
- for (;;) {
- int k;
- usec_t n;
-
- k = poll(pollfd, _FD_MAX, scheduled(&b.command) ? -1 : 0);
- if (k < 0) {
-
- if (errno == EAGAIN || errno == EINTR)
- continue;
-
- log_error_errno(errno, "poll(): %m");
- goto finish;
- }
-
- /* Exit on idle */
- if (k == 0)
- break;
-
- n = now(CLOCK_REALTIME);
-
- if (pollfd[FD_SOCKET].revents) {
-
- k = read_packet(pollfd[FD_SOCKET].fd, &b);
- if (k < 0)
- goto finish;
- else if (k > 0) {
- struct itimerspec its;
- char date[FORMAT_TIMESTAMP_MAX];
-
- if (!scheduled(&b.command)) {
- log_info("Shutdown canceled.");
- if (b.command.warn_wall)
- warn_wall(0, &b.command);
- break;
- }
-
- zero(its);
- if (b.command.warn_wall) {
- /* Send wall messages every so often */
- timespec_store(&its.it_value,
when_wall(n, b.command.usec));
-
- /* Warn immediately if less than 15
minutes are left */
- if (n < b.command.usec &&
- n + 15*USEC_PER_MINUTE >=
b.command.usec)
- warn_wall(n, &b.command);
- }
- if (timerfd_settime(pollfd[FD_WALL_TIMER].fd,
TFD_TIMER_ABSTIME, &its, NULL) < 0) {
- log_error_errno(errno,
"timerfd_settime(): %m");
- goto finish;
- }
-
- /* Disallow logins 5 minutes prior to shutdown
*/
- zero(its);
- timespec_store(&its.it_value,
when_nologin(b.command.usec));
- if
(timerfd_settime(pollfd[FD_NOLOGIN_TIMER].fd, TFD_TIMER_ABSTIME, &its, NULL) <
0) {
- log_error_errno(errno,
"timerfd_settime(): %m");
- goto finish;
- }
-
- /* Shutdown after the specified time is
reached */
- zero(its);
- timespec_store(&its.it_value, b.command.usec);
- if
(timerfd_settime(pollfd[FD_SHUTDOWN_TIMER].fd, TFD_TIMER_ABSTIME, &its, NULL) <
0) {
- log_error_errno(errno,
"timerfd_settime(): %m");
- goto finish;
- }
-
- update_schedule_file(&b.command);
-
- sd_notifyf(false,
- "STATUS=Shutting down at %s
(%s)...",
- format_timestamp(date,
sizeof(date), b.command.usec),
- mode_to_string(b.command.mode));
-
- log_info("Shutting down at %s (%s)...", date,
mode_to_string(b.command.mode));
- }
- }
-
- if (pollfd[FD_WALL_TIMER].revents) {
- struct itimerspec its = {};
-
- warn_wall(n, &b.command);
- flush_fd(pollfd[FD_WALL_TIMER].fd);
-
- /* Restart timer */
- timespec_store(&its.it_value, when_wall(n,
b.command.usec));
- if (timerfd_settime(pollfd[FD_WALL_TIMER].fd,
TFD_TIMER_ABSTIME, &its, NULL) < 0) {
- log_error_errno(errno, "timerfd_settime():
%m");
- goto finish;
- }
- }
-
- if (pollfd[FD_NOLOGIN_TIMER].revents) {
- int e;
-
- log_info("Creating /run/nologin, blocking further
logins...");
-
- e = write_string_file_atomic("/run/nologin", "System
is going down.");
- if (e < 0)
- log_error_errno(e, "Failed to create
/run/nologin: %m");
- else
- unlink_nologin = true;
-
- flush_fd(pollfd[FD_NOLOGIN_TIMER].fd);
- }
-
- if (pollfd[FD_SHUTDOWN_TIMER].revents) {
- exec_shutdown = true;
- goto finish;
- }
- }
-
- r = EXIT_SUCCESS;
-
- log_debug("systemd-shutdownd stopped as pid "PID_FMT, getpid());
-
-finish:
-
- for (i = 0; i < _FD_MAX; i++)
- safe_close(pollfd[i].fd);
-
- if (unlink_nologin)
- unlink("/run/nologin");
-
- unlink("/run/systemd/shutdown/scheduled");
-
- if (exec_shutdown && !b.command.dry_run) {
- char sw[3];
-
- sw[0] = '-';
- sw[1] = b.command.mode;
- sw[2] = 0;
-
- execl(SYSTEMCTL_BINARY_PATH,
- "shutdown",
- sw,
- "now",
- (b.command.warn_wall && b.command.wall_message[0]) ?
b.command.wall_message :
- (b.command.warn_wall ? NULL : "--no-wall"),
- NULL);
-
- log_error_errno(errno, "Failed to execute /sbin/shutdown: %m");
- }
-
- sd_notify(false,
- "STOPPING=\n"
- "STATUS=Exiting...");
-
- return r;
-}
diff --git a/src/sleep/Makefile b/src/sleep/Makefile
deleted file mode 120000
index d0b0e8e..0000000
--- a/src/sleep/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-../Makefile
\ No newline at end of file
diff --git a/src/sleep/sleep.c b/src/sleep/sleep.c
deleted file mode 100644
index cc1ffa6..0000000
--- a/src/sleep/sleep.c
+++ /dev/null
@@ -1,219 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- 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 <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include <getopt.h>
-
-#include "sd-id128.h"
-#include "sd-messages.h"
-#include "log.h"
-#include "util.h"
-#include "strv.h"
-#include "fileio.h"
-#include "build.h"
-#include "sleep-config.h"
-#include "def.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);
- 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);
- 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:
- puts(PACKAGE_STRING);
- puts(SYSTEMD_FEATURES);
- return 0 /* done */;
-
- 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;
-}
--
2.2.1.209.g41e5f3a
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