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"
31 #include "string-table.h"
32 #include "terminal-util.h"
33 #include "user-util.h"
35 int manager_handle_action(
37 InhibitWhat inhibit_key
,
39 bool ignore_inhibited
,
42 static const char * const message_table
[_HANDLE_ACTION_MAX
] = {
43 [HANDLE_POWEROFF
] = "Powering Off...",
44 [HANDLE_REBOOT
] = "Rebooting...",
45 [HANDLE_HALT
] = "Halting...",
46 [HANDLE_KEXEC
] = "Rebooting via kexec...",
47 [HANDLE_SUSPEND
] = "Suspending...",
48 [HANDLE_HIBERNATE
] = "Hibernating...",
49 [HANDLE_HYBRID_SLEEP
] = "Hibernating and suspending..."
52 static const char * const target_table
[_HANDLE_ACTION_MAX
] = {
53 [HANDLE_POWEROFF
] = SPECIAL_POWEROFF_TARGET
,
54 [HANDLE_REBOOT
] = SPECIAL_REBOOT_TARGET
,
55 [HANDLE_HALT
] = SPECIAL_HALT_TARGET
,
56 [HANDLE_KEXEC
] = SPECIAL_KEXEC_TARGET
,
57 [HANDLE_SUSPEND
] = SPECIAL_SUSPEND_TARGET
,
58 [HANDLE_HIBERNATE
] = SPECIAL_HIBERNATE_TARGET
,
59 [HANDLE_HYBRID_SLEEP
] = SPECIAL_HYBRID_SLEEP_TARGET
62 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
63 InhibitWhat inhibit_operation
;
64 Inhibitor
*offending
= NULL
;
70 /* If the key handling is turned off, don't do anything */
71 if (handle
== HANDLE_IGNORE
) {
72 log_debug("Refusing operation, as it is turned off.");
76 if (inhibit_key
== INHIBIT_HANDLE_LID_SWITCH
) {
77 /* If the last system suspend or startup is too close,
78 * let's not suspend for now, to give USB docking
79 * stations some time to settle so that we can
80 * properly watch its displays. */
81 if (m
->lid_switch_ignore_event_source
) {
82 log_debug("Ignoring lid switch request, system startup or resume too close.");
87 /* If the key handling is inhibited, don't do anything */
88 if (inhibit_key
> 0) {
89 if (manager_is_inhibited(m
, inhibit_key
, INHIBIT_BLOCK
, NULL
, true, false, 0, NULL
)) {
90 log_debug("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_key
));
95 /* Locking is handled differently from the rest. */
96 if (handle
== HANDLE_LOCK
) {
101 log_info("Locking sessions...");
102 session_send_lock_all(m
, true);
106 if (handle
== HANDLE_SUSPEND
)
107 supported
= can_sleep("suspend") > 0;
108 else if (handle
== HANDLE_HIBERNATE
)
109 supported
= can_sleep("hibernate") > 0;
110 else if (handle
== HANDLE_HYBRID_SLEEP
)
111 supported
= can_sleep("hybrid-sleep") > 0;
112 else if (handle
== HANDLE_KEXEC
)
113 supported
= access(KEXEC
, X_OK
) >= 0;
118 log_warning("Requested operation not supported, ignoring.");
122 if (m
->action_what
) {
123 log_debug("Action already in progress, ignoring.");
127 inhibit_operation
= handle
== HANDLE_SUSPEND
|| handle
== HANDLE_HIBERNATE
|| handle
== HANDLE_HYBRID_SLEEP
? INHIBIT_SLEEP
: INHIBIT_SHUTDOWN
;
129 /* If the actual operation is inhibited, warn and fail */
130 if (!ignore_inhibited
&&
131 manager_is_inhibited(m
, inhibit_operation
, INHIBIT_BLOCK
, NULL
, false, false, 0, &offending
)) {
132 _cleanup_free_
char *comm
= NULL
, *u
= NULL
;
134 get_process_comm(offending
->pid
, &comm
);
135 u
= uid_to_name(offending
->uid
);
137 /* If this is just a recheck of the lid switch then don't warn about anything */
139 log_debug("Refusing operation, %s is inhibited by UID "UID_FMT
"/%s, PID "PID_FMT
"/%s.",
140 inhibit_what_to_string(inhibit_operation
),
141 offending
->uid
, strna(u
),
142 offending
->pid
, strna(comm
));
146 log_error("Refusing operation, %s is inhibited by UID "UID_FMT
"/%s, PID "PID_FMT
"/%s.",
147 inhibit_what_to_string(inhibit_operation
),
148 offending
->uid
, strna(u
),
149 offending
->pid
, strna(comm
));
154 log_info("%s", message_table
[handle
]);
156 r
= bus_manager_shutdown_or_sleep_now_or_later(m
, target_table
[handle
], inhibit_operation
, &error
);
158 log_error("Failed to execute operation: %s", bus_error_message(&error
, r
));
165 static const char* const handle_action_table
[_HANDLE_ACTION_MAX
] = {
166 [HANDLE_IGNORE
] = "ignore",
167 [HANDLE_POWEROFF
] = "poweroff",
168 [HANDLE_REBOOT
] = "reboot",
169 [HANDLE_HALT
] = "halt",
170 [HANDLE_KEXEC
] = "kexec",
171 [HANDLE_SUSPEND
] = "suspend",
172 [HANDLE_HIBERNATE
] = "hibernate",
173 [HANDLE_HYBRID_SLEEP
] = "hybrid-sleep",
174 [HANDLE_LOCK
] = "lock"
177 DEFINE_STRING_TABLE_LOOKUP(handle_action
, HandleAction
);
178 DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_action
, handle_action
, HandleAction
, "Failed to parse handle action setting");