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 (inhibit_key == INHIBIT_HANDLE_LID_SWITCH) {
76 /* If we are docked don't react to lid closing */
77 if (manager_is_docked(m)) {
78 log_debug("Ignoring lid switch request, system is docked.");
82 /* If we have more than one or no displays connected,
83 * don't react to lid closing. The no display case we
84 * treat like this under the assumption that there is
85 * no modern drm driver available. */
86 n = manager_count_displays(m);
88 log_warning("Display counting failed: %s", strerror(-n));
90 log_debug("Ignoring lid switch request, %i displays connected.", n);
94 /* If the last system suspend or startup is too close,
95 * let's not suspend for now, to give USB docking
96 * stations some time to settle so that we can
97 * properly watch its displays. */
98 if (m->lid_switch_ignore_event_source) {
99 log_debug("Ignoring lid switch request, system startup or resume too close.");
104 /* If the key handling is inhibited, don't do anything */
105 if (inhibit_key > 0) {
106 if (manager_is_inhibited(m, inhibit_key, INHIBIT_BLOCK, NULL, true, false, 0, NULL)) {
107 log_debug("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_key));
112 /* Locking is handled differently from the rest. */
113 if (handle == HANDLE_LOCK) {
118 log_info("Locking sessions...");
119 session_send_lock_all(m, true);
123 if (handle == HANDLE_SUSPEND)
124 supported = can_sleep("suspend") > 0;
125 else if (handle == HANDLE_HIBERNATE)
126 supported = can_sleep("hibernate") > 0;
127 else if (handle == HANDLE_HYBRID_SLEEP)
128 supported = can_sleep("hybrid-sleep") > 0;
129 else if (handle == HANDLE_KEXEC)
130 supported = access(KEXEC, X_OK) >= 0;
135 log_warning("Requested operation not supported, ignoring.");
139 if (m->action_what) {
140 log_debug("Action already in progress, ignoring.");
144 inhibit_operation = handle == HANDLE_SUSPEND || handle == HANDLE_HIBERNATE || handle == HANDLE_HYBRID_SLEEP ? INHIBIT_SLEEP : INHIBIT_SHUTDOWN;
146 /* If the actual operation is inhibited, warn and fail */
147 if (!ignore_inhibited &&
148 manager_is_inhibited(m, inhibit_operation, INHIBIT_BLOCK, NULL, false, false, 0, &offending)) {
149 _cleanup_free_ char *comm = NULL, *u = NULL;
151 get_process_comm(offending->pid, &comm);
152 u = uid_to_name(offending->uid);
154 /* If this is just a recheck of the lid switch then don't warn about anything */
156 log_debug("Refusing operation, %s is inhibited by UID %lu/%s, PID %lu/%s.",
157 inhibit_what_to_string(inhibit_operation),
158 (unsigned long) offending->uid, strna(u),
159 (unsigned long) offending->pid, strna(comm));
163 log_error("Refusing operation, %s is inhibited by UID %lu/%s, PID %lu/%s.",
164 inhibit_what_to_string(inhibit_operation),
165 (unsigned long) offending->uid, strna(u),
166 (unsigned long) offending->pid, strna(comm));
172 log_info("%s", message_table[handle]);
174 r = bus_manager_shutdown_or_sleep_now_or_later(m, target_table[handle], inhibit_operation, &error);
176 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
183 static const char* const handle_action_table[_HANDLE_ACTION_MAX] = {
184 [HANDLE_IGNORE] = "ignore",
185 [HANDLE_POWEROFF] = "poweroff",
186 [HANDLE_REBOOT] = "reboot",
187 [HANDLE_HALT] = "halt",
188 [HANDLE_KEXEC] = "kexec",
189 [HANDLE_SUSPEND] = "suspend",
190 [HANDLE_HIBERNATE] = "hibernate",
191 [HANDLE_HYBRID_SLEEP] = "hybrid-sleep",
192 [HANDLE_LOCK] = "lock"
195 DEFINE_STRING_TABLE_LOOKUP(handle_action, HandleAction);
196 DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_action, handle_action, HandleAction, "Failed to parse handle action setting");