1 /* SPDX-License-Identifier: LGPL-2.1+ */
3 This file is part of systemd.
5 Copyright 2012 Lennart Poettering
7 elogind is free software; you can redistribute it and/or modify it
8 under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 2.1 of the License, or
10 (at your option) any later version.
12 elogind is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with elogind; If not, see <http://www.gnu.org/licenses/>.
23 #include "alloc-util.h"
24 #include "bus-error.h"
26 #include "conf-parser.h"
27 #include "format-util.h"
28 #include "logind-action.h"
29 #include "process-util.h"
30 #include "sleep-config.h"
31 //#include "special.h"
32 #include "string-table.h"
33 #include "terminal-util.h"
34 #include "user-util.h"
36 /// Additional includes needed by elogind
39 #include "sd-messages.h"
41 const char* manager_target_for_action(HandleAction handle) {
42 static const char * const target_table[_HANDLE_ACTION_MAX] = {
43 [HANDLE_POWEROFF] = SPECIAL_POWEROFF_TARGET,
44 [HANDLE_REBOOT] = SPECIAL_REBOOT_TARGET,
45 [HANDLE_HALT] = SPECIAL_HALT_TARGET,
46 [HANDLE_KEXEC] = SPECIAL_KEXEC_TARGET,
47 [HANDLE_SUSPEND] = SPECIAL_SUSPEND_TARGET,
48 [HANDLE_HIBERNATE] = SPECIAL_HIBERNATE_TARGET,
49 [HANDLE_HYBRID_SLEEP] = SPECIAL_HYBRID_SLEEP_TARGET,
50 [HANDLE_SUSPEND_THEN_HIBERNATE] = SPECIAL_SUSPEND_THEN_HIBERNATE_TARGET,
54 if (handle < (ssize_t) ELEMENTSOF(target_table))
55 return target_table[handle];
59 int manager_handle_action(
61 InhibitWhat inhibit_key,
63 bool ignore_inhibited,
66 static const char * const message_table[_HANDLE_ACTION_MAX] = {
67 [HANDLE_POWEROFF] = "Powering Off...",
68 [HANDLE_REBOOT] = "Rebooting...",
69 [HANDLE_HALT] = "Halting...",
70 [HANDLE_KEXEC] = "Rebooting via kexec...",
71 [HANDLE_SUSPEND] = "Suspending...",
72 [HANDLE_HIBERNATE] = "Hibernating...",
73 [HANDLE_HYBRID_SLEEP] = "Hibernating and suspending...",
74 [HANDLE_SUSPEND_THEN_HIBERNATE] = "Suspending, then hibernating...",
77 #if 0 /// elogind does this itself. No target table required
79 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
80 InhibitWhat inhibit_operation;
81 Inhibitor *offending = NULL;
88 /* If the key handling is turned off, don't do anything */
89 if (handle == HANDLE_IGNORE) {
90 log_debug("Refusing operation, as it is turned off.");
94 if (inhibit_key == INHIBIT_HANDLE_LID_SWITCH) {
95 /* If the last system suspend or startup is too close,
96 * let's not suspend for now, to give USB docking
97 * stations some time to settle so that we can
98 * properly watch its displays. */
99 if (m->lid_switch_ignore_event_source) {
100 log_debug("Ignoring lid switch request, system startup or resume too close.");
105 /* If the key handling is inhibited, don't do anything */
106 if (inhibit_key > 0) {
107 if (manager_is_inhibited(m, inhibit_key, INHIBIT_BLOCK, NULL, true, false, 0, NULL)) {
108 log_debug("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_key));
113 /* Locking is handled differently from the rest. */
114 if (handle == HANDLE_LOCK) {
118 log_info("Locking sessions...");
119 session_send_lock_all(m, true);
123 #if 0 /// elogind needs its own can_sleep() variant.
124 if (handle == HANDLE_SUSPEND)
125 supported = can_sleep("suspend") > 0;
126 else if (handle == HANDLE_HIBERNATE)
127 supported = can_sleep("hibernate") > 0;
128 else if (handle == HANDLE_HYBRID_SLEEP)
129 supported = can_sleep("hybrid-sleep") > 0;
130 else if (handle == HANDLE_SUSPEND_THEN_HIBERNATE)
131 supported = can_sleep("suspend-then-hibernate") > 0;
133 if (handle == HANDLE_SUSPEND)
134 supported = can_sleep(m, "suspend") > 0;
135 else if (handle == HANDLE_HIBERNATE)
136 supported = can_sleep(m, "hibernate") > 0;
137 else if (handle == HANDLE_HYBRID_SLEEP)
138 supported = can_sleep(m, "hybrid-sleep") > 0;
140 else if (handle == HANDLE_KEXEC)
141 supported = access(KEXEC, X_OK) >= 0;
146 log_warning("Requested operation not supported, ignoring.");
150 if (m->action_what) {
151 log_debug("Action already in progress, ignoring.");
155 assert_se(target = manager_target_for_action(handle));
157 inhibit_operation = IN_SET(handle, HANDLE_SUSPEND, HANDLE_HIBERNATE,
159 HANDLE_SUSPEND_THEN_HIBERNATE) ? INHIBIT_SLEEP : INHIBIT_SHUTDOWN;
161 /* If the actual operation is inhibited, warn and fail */
162 if (!ignore_inhibited &&
163 manager_is_inhibited(m, inhibit_operation, INHIBIT_BLOCK, NULL, false, false, 0, &offending)) {
164 _cleanup_free_ char *comm = NULL, *u = NULL;
166 get_process_comm(offending->pid, &comm);
167 u = uid_to_name(offending->uid);
169 /* If this is just a recheck of the lid switch then don't warn about anything */
171 log_debug("Refusing operation, %s is inhibited by UID "UID_FMT"/%s, PID "PID_FMT"/%s.",
172 inhibit_what_to_string(inhibit_operation),
173 offending->uid, strna(u),
174 offending->pid, strna(comm));
178 log_error("Refusing operation, %s is inhibited by UID "UID_FMT"/%s, PID "PID_FMT"/%s.",
179 inhibit_what_to_string(inhibit_operation),
180 offending->uid, strna(u),
181 offending->pid, strna(comm));
186 log_info("%s", message_table[handle]);
188 #if 0 /// elogind uses its own variant, which can use the handle directly.
189 r = bus_manager_shutdown_or_sleep_now_or_later(m, target, inhibit_operation, &error);
191 r = bus_manager_shutdown_or_sleep_now_or_later(m, handle, inhibit_operation, &error);
194 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
201 static const char* const handle_action_table[_HANDLE_ACTION_MAX] = {
202 [HANDLE_IGNORE] = "ignore",
203 [HANDLE_POWEROFF] = "poweroff",
204 [HANDLE_REBOOT] = "reboot",
205 [HANDLE_HALT] = "halt",
206 [HANDLE_KEXEC] = "kexec",
207 [HANDLE_SUSPEND] = "suspend",
208 [HANDLE_HIBERNATE] = "hibernate",
209 [HANDLE_HYBRID_SLEEP] = "hybrid-sleep",
210 [HANDLE_SUSPEND_THEN_HIBERNATE] = "suspend-then-hibernate",
211 [HANDLE_LOCK] = "lock",
214 DEFINE_STRING_TABLE_LOOKUP(handle_action, HandleAction);
215 DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_action, handle_action, HandleAction, "Failed to parse handle action setting");