/*-*- 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 <sys/syscall.h> #include "bus-util.h" #include "bus-error.h" #include "special.h" #include "failure-action.h" 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_warning("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_warning("Forcibly rebooting as result of failure."); update_reboot_param_file(reboot_arg); m->exit_code = MANAGER_REBOOT; break; case FAILURE_ACTION_REBOOT_IMMEDIATE: log_warning("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_warning("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_warning("Forcibly powering off as result of failure."); m->exit_code = MANAGER_POWEROFF; break; case FAILURE_ACTION_POWEROFF_IMMEDIATE: log_warning("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);