-/* SPDX-License-Identifier: LGPL-2.1+ */
-/***
- 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/>.
-***/
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <sys/reboot.h>
#include "special.h"
#include "string-table.h"
#include "terminal-util.h"
+#include "virt.h"
-static void log_and_status(Manager *m, const char *message, const char *reason) {
- log_warning("%s: %s", message, reason);
- manager_status_printf(m, STATUS_TYPE_EMERGENCY,
- ANSI_HIGHLIGHT_RED " !! " ANSI_NORMAL,
- "%s: %s", message, reason);
+static const char* const emergency_action_table[_EMERGENCY_ACTION_MAX] = {
+ [EMERGENCY_ACTION_NONE] = "none",
+ [EMERGENCY_ACTION_REBOOT] = "reboot",
+ [EMERGENCY_ACTION_REBOOT_FORCE] = "reboot-force",
+ [EMERGENCY_ACTION_REBOOT_IMMEDIATE] = "reboot-immediate",
+ [EMERGENCY_ACTION_POWEROFF] = "poweroff",
+ [EMERGENCY_ACTION_POWEROFF_FORCE] = "poweroff-force",
+ [EMERGENCY_ACTION_POWEROFF_IMMEDIATE] = "poweroff-immediate",
+ [EMERGENCY_ACTION_EXIT] = "exit",
+ [EMERGENCY_ACTION_EXIT_FORCE] = "exit-force",
+};
+
+static void log_and_status(Manager *m, bool warn, const char *message, const char *reason) {
+ log_full(warn ? LOG_WARNING : LOG_DEBUG, "%s: %s", message, reason);
+ if (warn)
+ manager_status_printf(m, STATUS_TYPE_EMERGENCY,
+ ANSI_HIGHLIGHT_RED " !! " ANSI_NORMAL,
+ "%s: %s", message, reason);
}
-int emergency_action(
+void emergency_action(
Manager *m,
EmergencyAction action,
+ EmergencyActionFlags options,
const char *reboot_arg,
+ int exit_status,
const char *reason) {
+ Unit *u;
+
assert(m);
assert(action >= 0);
assert(action < _EMERGENCY_ACTION_MAX);
+ /* Is the special shutdown target active or queued? If so, we are in shutdown state */
+ if (IN_SET(action, EMERGENCY_ACTION_REBOOT, EMERGENCY_ACTION_POWEROFF, EMERGENCY_ACTION_EXIT)) {
+ u = manager_get_unit(m, SPECIAL_SHUTDOWN_TARGET);
+ if (u && unit_active_or_pending(u)) {
+ log_notice("Shutdown is already active. Skipping emergency action request %s.",
+ emergency_action_table[action]);
+ return;
+ }
+ }
+
if (action == EMERGENCY_ACTION_NONE)
- return -ECANCELED;
+ return;
- if (!m->service_watchdogs) {
+ if (FLAGS_SET(options, EMERGENCY_ACTION_IS_WATCHDOG) && !m->service_watchdogs) {
log_warning("Watchdog disabled! Not acting on: %s", reason);
- return -ECANCELED;
+ return;
}
- if (!MANAGER_IS_SYSTEM(m)) {
- /* Downgrade all options to simply exiting if we run
- * in user mode */
-
- log_warning("Exiting: %s", reason);
- m->exit_code = MANAGER_EXIT;
- return -ECANCELED;
- }
+ bool warn = FLAGS_SET(options, EMERGENCY_ACTION_WARN);
switch (action) {
case EMERGENCY_ACTION_REBOOT:
- log_and_status(m, "Rebooting", reason);
-
- (void) update_reboot_parameter_and_warn(reboot_arg);
- (void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL);
+ log_and_status(m, warn, "Rebooting", reason);
+ (void) update_reboot_parameter_and_warn(reboot_arg, true);
+ (void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL, NULL);
break;
case EMERGENCY_ACTION_REBOOT_FORCE:
- log_and_status(m, "Forcibly rebooting", reason);
+ log_and_status(m, warn, "Forcibly rebooting", reason);
- (void) update_reboot_parameter_and_warn(reboot_arg);
- m->exit_code = MANAGER_REBOOT;
+ (void) update_reboot_parameter_and_warn(reboot_arg, true);
+ m->objective = MANAGER_REBOOT;
break;
case EMERGENCY_ACTION_REBOOT_IMMEDIATE:
- log_and_status(m, "Rebooting immediately", reason);
+ log_and_status(m, warn, "Rebooting immediately", reason);
sync();
(void) reboot(RB_AUTOBOOT);
break;
+ case EMERGENCY_ACTION_EXIT:
+
+ if (exit_status >= 0)
+ m->return_value = exit_status;
+
+ if (MANAGER_IS_USER(m) || detect_container() > 0) {
+ log_and_status(m, warn, "Exiting", reason);
+ (void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_EXIT_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL, NULL);
+ break;
+ }
+
+ log_notice("Doing \"poweroff\" action instead of an \"exit\" emergency action.");
+ _fallthrough_;
+
case EMERGENCY_ACTION_POWEROFF:
- log_and_status(m, "Powering off", reason);
- (void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_POWEROFF_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL);
+ log_and_status(m, warn, "Powering off", reason);
+ (void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_POWEROFF_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL, NULL);
break;
+ case EMERGENCY_ACTION_EXIT_FORCE:
+
+ if (exit_status >= 0)
+ m->return_value = exit_status;
+
+ if (MANAGER_IS_USER(m) || detect_container() > 0) {
+ log_and_status(m, warn, "Exiting immediately", reason);
+ m->objective = MANAGER_EXIT;
+ break;
+ }
+
+ log_notice("Doing \"poweroff-force\" action instead of an \"exit-force\" emergency action.");
+ _fallthrough_;
+
case EMERGENCY_ACTION_POWEROFF_FORCE:
- log_and_status(m, "Forcibly powering off", reason);
- m->exit_code = MANAGER_POWEROFF;
+ log_and_status(m, warn, "Forcibly powering off", reason);
+ m->objective = MANAGER_POWEROFF;
break;
case EMERGENCY_ACTION_POWEROFF_IMMEDIATE:
- log_and_status(m, "Powering off immediately", reason);
+ log_and_status(m, warn, "Powering off immediately", reason);
sync();
default:
assert_not_reached("Unknown emergency action");
}
-
- return -ECANCELED;
}
-static const char* const emergency_action_table[_EMERGENCY_ACTION_MAX] = {
- [EMERGENCY_ACTION_NONE] = "none",
- [EMERGENCY_ACTION_REBOOT] = "reboot",
- [EMERGENCY_ACTION_REBOOT_FORCE] = "reboot-force",
- [EMERGENCY_ACTION_REBOOT_IMMEDIATE] = "reboot-immediate",
- [EMERGENCY_ACTION_POWEROFF] = "poweroff",
- [EMERGENCY_ACTION_POWEROFF_FORCE] = "poweroff-force",
- [EMERGENCY_ACTION_POWEROFF_IMMEDIATE] = "poweroff-immediate"
-};
DEFINE_STRING_TABLE_LOOKUP(emergency_action, EmergencyAction);
+
+int parse_emergency_action(
+ const char *value,
+ bool system,
+ EmergencyAction *ret) {
+
+ EmergencyAction x;
+
+ x = emergency_action_from_string(value);
+ if (x < 0)
+ return -EINVAL;
+
+ if (!system && x != EMERGENCY_ACTION_NONE && x < _EMERGENCY_ACTION_FIRST_USER_ACTION)
+ return -EOPNOTSUPP;
+
+ *ret = x;
+ return 0;
+}
projects / thirdparty / systemd.git / blobdiff