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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2014 Lennart Poettering
Copyright 2012 Michael Olbrich
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/reboot.h>
#include <linux/reboot.h>
#include "bus-util.h"
#include "bus-error.h"
#include "special.h"
#include "failure-action.h"
static void log_and_status(Manager *m, const char *message) {
log_warning("%s", message);
manager_status_printf(m, STATUS_TYPE_EMERGENCY,
ANSI_HIGHLIGHT_RED_ON " !! " ANSI_HIGHLIGHT_OFF,
"%s", message);
}
int failure_action(
Manager *m,
FailureAction action,
const char *reboot_arg) {
int r;
assert(m);
assert(action >= 0);
assert(action < _FAILURE_ACTION_MAX);
if (action == FAILURE_ACTION_NONE)
return -ECANCELED;
if (m->running_as == SYSTEMD_USER) {
/* Downgrade all options to simply exiting if we run
* in user mode */
log_warning("Exiting as result of failure.");
m->exit_code = MANAGER_EXIT;
return -ECANCELED;
}
switch (action) {
case FAILURE_ACTION_REBOOT: {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
log_and_status(m, "Rebooting as result of failure.");
update_reboot_param_file(reboot_arg);
r = manager_add_job_by_name(m, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
if (r < 0)
log_error("Failed to reboot: %s.", bus_error_message(&error, r));
break;
}
case FAILURE_ACTION_REBOOT_FORCE:
log_and_status(m, "Forcibly rebooting as result of failure.");
update_reboot_param_file(reboot_arg);
m->exit_code = MANAGER_REBOOT;
break;
case FAILURE_ACTION_REBOOT_IMMEDIATE:
log_and_status(m, "Rebooting immediately as result of failure.");
sync();
if (reboot_arg) {
log_info("Rebooting with argument '%s'.", reboot_arg);
syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, reboot_arg);
}
log_info("Rebooting.");
reboot(RB_AUTOBOOT);
break;
case FAILURE_ACTION_POWEROFF: {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
log_and_status(m, "Powering off as result of failure.");
r = manager_add_job_by_name(m, JOB_START, SPECIAL_POWEROFF_TARGET, JOB_REPLACE, true, &error, NULL);
if (r < 0)
log_error("Failed to poweroff: %s.", bus_error_message(&error, r));
break;
}
case FAILURE_ACTION_POWEROFF_FORCE:
log_and_status(m, "Forcibly powering off as result of failure.");
m->exit_code = MANAGER_POWEROFF;
break;
case FAILURE_ACTION_POWEROFF_IMMEDIATE:
log_and_status(m, "Powering off immediately as result of failure.");
sync();
log_info("Powering off.");
reboot(RB_POWER_OFF);
break;
default:
assert_not_reached("Unknown failure action");
}
return -ECANCELED;
}
static const char* const failure_action_table[_FAILURE_ACTION_MAX] = {
[FAILURE_ACTION_NONE] = "none",
[FAILURE_ACTION_REBOOT] = "reboot",
[FAILURE_ACTION_REBOOT_FORCE] = "reboot-force",
[FAILURE_ACTION_REBOOT_IMMEDIATE] = "reboot-immediate",
[FAILURE_ACTION_POWEROFF] = "poweroff",
[FAILURE_ACTION_POWEROFF_FORCE] = "poweroff-force",
[FAILURE_ACTION_POWEROFF_IMMEDIATE] = "poweroff-immediate"
};
DEFINE_STRING_TABLE_LOOKUP(failure_action, FailureAction);
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