2 This file is part of systemd.
4 Copyright 2012 Lennart Poettering
6 systemd is free software; you can redistribute it and/or modify it
7 under the terms of the GNU Lesser General Public License as published by
8 the Free Software Foundation; either version 2.1 of the License, or
9 (at your option) any later version.
11 systemd is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public License
17 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include "alloc-util.h"
23 #include "bus-error.h"
25 #include "conf-parser.h"
26 #include "formats-util.h"
27 #include "logind-action.h"
28 #include "process-util.h"
29 #include "sleep-config.h"
30 //#include "special.h"
31 #include "string-table.h"
32 #include "terminal-util.h"
33 #include "user-util.h"
35 /// Additional includes needed by elogind
38 #include "sd-messages.h"
41 int manager_handle_action(
43 InhibitWhat inhibit_key,
45 bool ignore_inhibited,
48 static const char * const message_table[_HANDLE_ACTION_MAX] = {
49 [HANDLE_POWEROFF] = "Powering Off...",
50 [HANDLE_REBOOT] = "Rebooting...",
51 [HANDLE_HALT] = "Halting...",
52 [HANDLE_KEXEC] = "Rebooting via kexec...",
53 [HANDLE_SUSPEND] = "Suspending...",
54 [HANDLE_HIBERNATE] = "Hibernating...",
55 [HANDLE_HYBRID_SLEEP] = "Hibernating and suspending..."
58 #if 0 /// elogind does this itself. No target table required
59 static const char * const target_table[_HANDLE_ACTION_MAX] = {
60 [HANDLE_POWEROFF] = SPECIAL_POWEROFF_TARGET,
61 [HANDLE_REBOOT] = SPECIAL_REBOOT_TARGET,
62 [HANDLE_HALT] = SPECIAL_HALT_TARGET,
63 [HANDLE_KEXEC] = SPECIAL_KEXEC_TARGET,
64 [HANDLE_SUSPEND] = SPECIAL_SUSPEND_TARGET,
65 [HANDLE_HIBERNATE] = SPECIAL_HIBERNATE_TARGET,
66 [HANDLE_HYBRID_SLEEP] = SPECIAL_HYBRID_SLEEP_TARGET
70 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
71 InhibitWhat inhibit_operation;
72 Inhibitor *offending = NULL;
78 /* If the key handling is turned off, don't do anything */
79 if (handle == HANDLE_IGNORE) {
80 log_debug("Refusing operation, as it is turned off.");
84 if (inhibit_key == INHIBIT_HANDLE_LID_SWITCH) {
85 /* If the last system suspend or startup is too close,
86 * let's not suspend for now, to give USB docking
87 * stations some time to settle so that we can
88 * properly watch its displays. */
89 if (m->lid_switch_ignore_event_source) {
90 log_debug("Ignoring lid switch request, system startup or resume too close.");
95 /* If the key handling is inhibited, don't do anything */
96 if (inhibit_key > 0) {
97 if (manager_is_inhibited(m, inhibit_key, INHIBIT_BLOCK, NULL, true, false, 0, NULL)) {
98 log_debug("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_key));
103 /* Locking is handled differently from the rest. */
104 if (handle == HANDLE_LOCK) {
109 log_info("Locking sessions...");
110 session_send_lock_all(m, true);
114 #if 0 /// elogind needs its own can_sleep() variant.
115 if (handle == HANDLE_SUSPEND)
116 supported = can_sleep("suspend") > 0;
117 else if (handle == HANDLE_HIBERNATE)
118 supported = can_sleep("hibernate") > 0;
119 else if (handle == HANDLE_HYBRID_SLEEP)
120 supported = can_sleep("hybrid-sleep") > 0;
122 if (handle == HANDLE_SUSPEND)
123 supported = can_sleep(m, "suspend") > 0;
124 else if (handle == HANDLE_HIBERNATE)
125 supported = can_sleep(m, "hibernate") > 0;
126 else if (handle == HANDLE_HYBRID_SLEEP)
127 supported = can_sleep(m, "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 = IN_SET(handle, HANDLE_SUSPEND, HANDLE_HIBERNATE, 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 "UID_FMT"/%s, PID "PID_FMT"/%s.",
157 inhibit_what_to_string(inhibit_operation),
158 offending->uid, strna(u),
159 offending->pid, strna(comm));
163 log_error("Refusing operation, %s is inhibited by UID "UID_FMT"/%s, PID "PID_FMT"/%s.",
164 inhibit_what_to_string(inhibit_operation),
165 offending->uid, strna(u),
166 offending->pid, strna(comm));
171 log_info("%s", message_table[handle]);
173 #if 0 /// elogind uses its own variant, which can use the handle directly.
174 r = bus_manager_shutdown_or_sleep_now_or_later(m, target_table[handle], inhibit_operation, &error);
176 r = bus_manager_shutdown_or_sleep_now_or_later(m, handle, inhibit_operation, &error);
179 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
186 static const char* const handle_action_table[_HANDLE_ACTION_MAX] = {
187 [HANDLE_IGNORE] = "ignore",
188 [HANDLE_POWEROFF] = "poweroff",
189 [HANDLE_REBOOT] = "reboot",
190 [HANDLE_HALT] = "halt",
191 [HANDLE_KEXEC] = "kexec",
192 [HANDLE_SUSPEND] = "suspend",
193 [HANDLE_HIBERNATE] = "hibernate",
194 [HANDLE_HYBRID_SLEEP] = "hybrid-sleep",
195 [HANDLE_LOCK] = "lock"
198 DEFINE_STRING_TABLE_LOOKUP(handle_action, HandleAction);
199 DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_action, handle_action, HandleAction, "Failed to parse handle action setting");