129 lines
4.4 KiB
C
129 lines
4.4 KiB
C
/***
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This file is part of systemd.
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Copyright 2014 Lennart Poettering
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Copyright 2012 Michael Olbrich
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <sys/reboot.h>
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#include <linux/reboot.h>
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#include "bus-error.h"
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#include "bus-util.h"
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#include "emergency-action.h"
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#include "special.h"
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#include "string-table.h"
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#include "terminal-util.h"
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static void log_and_status(Manager *m, const char *message, const char *reason) {
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log_warning("%s: %s", message, reason);
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manager_status_printf(m, STATUS_TYPE_EMERGENCY,
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ANSI_HIGHLIGHT_RED " !! " ANSI_NORMAL,
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"%s: %s", message, reason);
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}
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int emergency_action(
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Manager *m,
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EmergencyAction action,
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const char *reboot_arg,
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const char *reason) {
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assert(m);
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assert(action >= 0);
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assert(action < _EMERGENCY_ACTION_MAX);
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if (action == EMERGENCY_ACTION_NONE)
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return -ECANCELED;
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if (!MANAGER_IS_SYSTEM(m)) {
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/* Downgrade all options to simply exiting if we run
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* in user mode */
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log_warning("Exiting: %s", reason);
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m->exit_code = MANAGER_EXIT;
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return -ECANCELED;
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}
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switch (action) {
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case EMERGENCY_ACTION_REBOOT:
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log_and_status(m, "Rebooting", reason);
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(void) update_reboot_parameter_and_warn(reboot_arg);
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(void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL);
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break;
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case EMERGENCY_ACTION_REBOOT_FORCE:
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log_and_status(m, "Forcibly rebooting", reason);
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(void) update_reboot_parameter_and_warn(reboot_arg);
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m->exit_code = MANAGER_REBOOT;
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break;
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case EMERGENCY_ACTION_REBOOT_IMMEDIATE:
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log_and_status(m, "Rebooting immediately", reason);
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sync();
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if (!isempty(reboot_arg)) {
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log_info("Rebooting with argument '%s'.", reboot_arg);
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syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, reboot_arg);
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log_warning_errno(errno, "Failed to reboot with parameter, retrying without: %m");
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}
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log_info("Rebooting.");
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reboot(RB_AUTOBOOT);
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break;
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case EMERGENCY_ACTION_POWEROFF:
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log_and_status(m, "Powering off", reason);
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(void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_POWEROFF_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL);
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break;
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case EMERGENCY_ACTION_POWEROFF_FORCE:
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log_and_status(m, "Forcibly powering off", reason);
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m->exit_code = MANAGER_POWEROFF;
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break;
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case EMERGENCY_ACTION_POWEROFF_IMMEDIATE:
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log_and_status(m, "Powering off immediately", reason);
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sync();
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log_info("Powering off.");
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reboot(RB_POWER_OFF);
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break;
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default:
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assert_not_reached("Unknown emergency action");
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}
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return -ECANCELED;
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}
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static const char* const emergency_action_table[_EMERGENCY_ACTION_MAX] = {
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[EMERGENCY_ACTION_NONE] = "none",
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[EMERGENCY_ACTION_REBOOT] = "reboot",
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[EMERGENCY_ACTION_REBOOT_FORCE] = "reboot-force",
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[EMERGENCY_ACTION_REBOOT_IMMEDIATE] = "reboot-immediate",
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[EMERGENCY_ACTION_POWEROFF] = "poweroff",
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[EMERGENCY_ACTION_POWEROFF_FORCE] = "poweroff-force",
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[EMERGENCY_ACTION_POWEROFF_IMMEDIATE] = "poweroff-immediate"
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};
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DEFINE_STRING_TABLE_LOOKUP(emergency_action, EmergencyAction);
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