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) {
83 log_info("Locking sessions...");
84 session_send_lock_all(m, true);
88 if (handle == HANDLE_SUSPEND)
89 supported = can_sleep("suspend") > 0;
90 else if (handle == HANDLE_HIBERNATE)
91 supported = can_sleep("hibernate") > 0;
92 else if (handle == HANDLE_HYBRID_SLEEP)
93 supported = can_sleep("hybrid-sleep") > 0;
94 else if (handle == HANDLE_KEXEC)
95 supported = access(KEXEC, X_OK) >= 0;
100 log_warning("Requested operation not supported, ignoring.");
104 if (m->action_what) {
105 log_debug("Action already in progress, ignoring.");
109 inhibit_operation = handle == HANDLE_SUSPEND || handle == HANDLE_HIBERNATE || handle == HANDLE_HYBRID_SLEEP ? INHIBIT_SLEEP : INHIBIT_SHUTDOWN;
111 /* If the actual operation is inhibited, warn and fail */
112 if (!ignore_inhibited &&
113 manager_is_inhibited(m, inhibit_operation, INHIBIT_BLOCK, NULL, false, false, 0, &offending)) {
114 _cleanup_free_ char *comm = NULL, *u = NULL;
116 get_process_comm(offending->pid, &comm);
117 u = uid_to_name(offending->uid);
119 /* If this is just a recheck of the lid switch then don't warn about anything */
121 log_debug("Refusing operation, %s is inhibited by UID %lu/%s, PID %lu/%s.",
122 inhibit_what_to_string(inhibit_operation),
123 (unsigned long) offending->uid, strna(u),
124 (unsigned long) offending->pid, strna(comm));
128 log_error("Refusing operation, %s is inhibited by UID %lu/%s, PID %lu/%s.",
129 inhibit_what_to_string(inhibit_operation),
130 (unsigned long) offending->uid, strna(u),
131 (unsigned long) offending->pid, strna(comm));
137 log_info("%s", message_table[handle]);
139 r = bus_manager_shutdown_or_sleep_now_or_later(m, target_table[handle], inhibit_operation, &error);
141 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
148 static const char* const handle_action_table[_HANDLE_ACTION_MAX] = {
149 [HANDLE_IGNORE] = "ignore",
150 [HANDLE_POWEROFF] = "poweroff",
151 [HANDLE_REBOOT] = "reboot",
152 [HANDLE_HALT] = "halt",
153 [HANDLE_KEXEC] = "kexec",
154 [HANDLE_SUSPEND] = "suspend",
155 [HANDLE_HIBERNATE] = "hibernate",
156 [HANDLE_HYBRID_SLEEP] = "hybrid-sleep",
157 [HANDLE_LOCK] = "lock"
160 DEFINE_STRING_TABLE_LOOKUP(handle_action, HandleAction);
161 DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_action, handle_action, HandleAction, "Failed to parse handle action setting");