1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2012 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 #include "sd-messages.h"
25 #include "conf-parser.h"
27 #include "sleep-config.h"
29 #include "bus-error.h"
30 #include "logind-action.h"
32 int manager_handle_action(
34 InhibitWhat inhibit_key,
36 bool ignore_inhibited,
39 static const char * const message_table[_HANDLE_ACTION_MAX] = {
40 [HANDLE_POWEROFF] = "Powering Off...",
41 [HANDLE_REBOOT] = "Rebooting...",
42 [HANDLE_HALT] = "Halting...",
43 [HANDLE_KEXEC] = "Rebooting via kexec...",
44 [HANDLE_SUSPEND] = "Suspending...",
45 [HANDLE_HIBERNATE] = "Hibernating...",
46 [HANDLE_HYBRID_SLEEP] = "Hibernating and suspending..."
49 static const char * const target_table[_HANDLE_ACTION_MAX] = {
50 [HANDLE_POWEROFF] = SPECIAL_POWEROFF_TARGET,
51 [HANDLE_REBOOT] = SPECIAL_REBOOT_TARGET,
52 [HANDLE_HALT] = SPECIAL_HALT_TARGET,
53 [HANDLE_KEXEC] = SPECIAL_KEXEC_TARGET,
54 [HANDLE_SUSPEND] = SPECIAL_SUSPEND_TARGET,
55 [HANDLE_HIBERNATE] = SPECIAL_HIBERNATE_TARGET,
56 [HANDLE_HYBRID_SLEEP] = SPECIAL_HYBRID_SLEEP_TARGET
59 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
60 InhibitWhat inhibit_operation;
61 Inhibitor *offending = NULL;
67 /* If the key handling is turned off, don't do anything */
68 if (handle == HANDLE_IGNORE) {
69 log_debug("Refusing operation, as it is turned off.");
73 /* If the key handling is inhibited, don't do anything */
74 if (inhibit_key > 0) {
75 if (manager_is_inhibited(m, inhibit_key, INHIBIT_BLOCK, NULL, true, false, 0, NULL)) {
76 log_debug("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_key));
81 /* Locking is handled differently from the rest. */
82 if (handle == HANDLE_LOCK) {
87 log_info("Locking sessions...");
88 session_send_lock_all(m, true);
92 if (handle == HANDLE_SUSPEND)
93 supported = can_sleep("suspend") > 0;
94 else if (handle == HANDLE_HIBERNATE)
95 supported = can_sleep("hibernate") > 0;
96 else if (handle == HANDLE_HYBRID_SLEEP)
97 supported = can_sleep("hybrid-sleep") > 0;
98 else if (handle == HANDLE_KEXEC)
99 supported = access(KEXEC, X_OK) >= 0;
104 log_warning("Requested operation not supported, ignoring.");
108 if (m->action_what) {
109 log_debug("Action already in progress, ignoring.");
113 inhibit_operation = handle == HANDLE_SUSPEND || handle == HANDLE_HIBERNATE || handle == HANDLE_HYBRID_SLEEP ? INHIBIT_SLEEP : INHIBIT_SHUTDOWN;
115 /* If the actual operation is inhibited, warn and fail */
116 if (!ignore_inhibited &&
117 manager_is_inhibited(m, inhibit_operation, INHIBIT_BLOCK, NULL, false, false, 0, &offending)) {
118 _cleanup_free_ char *comm = NULL, *u = NULL;
120 get_process_comm(offending->pid, &comm);
121 u = uid_to_name(offending->uid);
123 /* If this is just a recheck of the lid switch then don't warn about anything */
125 log_debug("Refusing operation, %s is inhibited by UID %lu/%s, PID %lu/%s.",
126 inhibit_what_to_string(inhibit_operation),
127 (unsigned long) offending->uid, strna(u),
128 (unsigned long) offending->pid, strna(comm));
132 log_error("Refusing operation, %s is inhibited by UID %lu/%s, PID %lu/%s.",
133 inhibit_what_to_string(inhibit_operation),
134 (unsigned long) offending->uid, strna(u),
135 (unsigned long) offending->pid, strna(comm));
141 log_info("%s", message_table[handle]);
143 r = bus_manager_shutdown_or_sleep_now_or_later(m, target_table[handle], inhibit_operation, &error);
145 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
152 static const char* const handle_action_table[_HANDLE_ACTION_MAX] = {
153 [HANDLE_IGNORE] = "ignore",
154 [HANDLE_POWEROFF] = "poweroff",
155 [HANDLE_REBOOT] = "reboot",
156 [HANDLE_HALT] = "halt",
157 [HANDLE_KEXEC] = "kexec",
158 [HANDLE_SUSPEND] = "suspend",
159 [HANDLE_HIBERNATE] = "hibernate",
160 [HANDLE_HYBRID_SLEEP] = "hybrid-sleep",
161 [HANDLE_LOCK] = "lock"
164 DEFINE_STRING_TABLE_LOOKUP(handle_action, HandleAction);
165 DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_action, handle_action, HandleAction, "Failed to parse handle action setting");