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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2012 Lennart Poettering | |
7 | ||
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. | |
12 | ||
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. | |
17 | ||
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/>. | |
20 | ***/ | |
21 | ||
dc3a1b76 LP |
22 | #include <unistd.h> |
23 | ||
cc377381 | 24 | #include "sd-messages.h" |
23406ce5 LP |
25 | #include "conf-parser.h" |
26 | #include "special.h" | |
19adb8a3 | 27 | #include "sleep-config.h" |
cc377381 LP |
28 | #include "bus-util.h" |
29 | #include "bus-error.h" | |
30 | #include "logind-action.h" | |
23406ce5 LP |
31 | |
32 | int manager_handle_action( | |
33 | Manager *m, | |
34 | InhibitWhat inhibit_key, | |
35 | HandleAction handle, | |
36 | bool ignore_inhibited, | |
37 | bool is_edge) { | |
38 | ||
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..." | |
47 | }; | |
48 | ||
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 | |
57 | }; | |
58 | ||
cc377381 | 59 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
23406ce5 | 60 | InhibitWhat inhibit_operation; |
af9792ac | 61 | bool supported; |
cc377381 | 62 | int r; |
23406ce5 LP |
63 | |
64 | assert(m); | |
65 | ||
66 | /* If the key handling is turned off, don't do anything */ | |
67 | if (handle == HANDLE_IGNORE) { | |
68 | log_debug("Refusing operation, as it is turned off."); | |
69 | return 0; | |
70 | } | |
71 | ||
cc377381 LP |
72 | /* If the key handling is inhibited, don't do anything */ |
73 | if (inhibit_key > 0) { | |
74 | if (manager_is_inhibited(m, inhibit_key, INHIBIT_BLOCK, NULL, true, false, 0)) { | |
75 | log_debug("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_key)); | |
76 | return 0; | |
77 | } | |
78 | } | |
79 | ||
80 | /* Locking is handled differently from the rest. */ | |
81 | if (handle == HANDLE_LOCK) { | |
82 | log_info("Locking sessions..."); | |
83 | session_send_lock_all(m, true); | |
84 | return 1; | |
85 | } | |
86 | ||
dc3a1b76 | 87 | if (handle == HANDLE_SUSPEND) |
19adb8a3 | 88 | supported = can_sleep("suspend") > 0; |
dc3a1b76 | 89 | else if (handle == HANDLE_HIBERNATE) |
19adb8a3 | 90 | supported = can_sleep("hibernate") > 0; |
dc3a1b76 | 91 | else if (handle == HANDLE_HYBRID_SLEEP) |
19adb8a3 | 92 | supported = can_sleep("hybrid-sleep") > 0; |
dc3a1b76 | 93 | else if (handle == HANDLE_KEXEC) |
78013564 | 94 | supported = access(KEXEC, X_OK) >= 0; |
af9792ac LP |
95 | else |
96 | supported = true; | |
dc3a1b76 LP |
97 | |
98 | if (!supported) { | |
99 | log_warning("Requested operation not supported, ignoring."); | |
100 | return -ENOTSUP; | |
101 | } | |
102 | ||
cc377381 LP |
103 | if (m->action_what) { |
104 | log_debug("Action already in progress, ignoring."); | |
105 | return -EALREADY; | |
23406ce5 LP |
106 | } |
107 | ||
108 | inhibit_operation = handle == HANDLE_SUSPEND || handle == HANDLE_HIBERNATE || handle == HANDLE_HYBRID_SLEEP ? INHIBIT_SLEEP : INHIBIT_SHUTDOWN; | |
109 | ||
110 | /* If the actual operation is inhibited, warn and fail */ | |
111 | if (!ignore_inhibited && | |
112 | manager_is_inhibited(m, inhibit_operation, INHIBIT_BLOCK, NULL, false, false, 0)) { | |
113 | ||
114 | /* If this is just a recheck of the lid switch then don't warn about anything */ | |
115 | if (!is_edge) { | |
116 | log_debug("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_operation)); | |
117 | return 0; | |
118 | } | |
119 | ||
120 | log_error("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_operation)); | |
121 | warn_melody(); | |
122 | return -EPERM; | |
123 | } | |
124 | ||
125 | log_info("%s", message_table[handle]); | |
126 | ||
23406ce5 LP |
127 | r = bus_manager_shutdown_or_sleep_now_or_later(m, target_table[handle], inhibit_operation, &error); |
128 | if (r < 0) { | |
cc377381 | 129 | log_error("Failed to execute operation: %s", bus_error_message(&error, r)); |
23406ce5 LP |
130 | return r; |
131 | } | |
132 | ||
133 | return 1; | |
134 | } | |
135 | ||
136 | static const char* const handle_action_table[_HANDLE_ACTION_MAX] = { | |
137 | [HANDLE_IGNORE] = "ignore", | |
138 | [HANDLE_POWEROFF] = "poweroff", | |
139 | [HANDLE_REBOOT] = "reboot", | |
140 | [HANDLE_HALT] = "halt", | |
141 | [HANDLE_KEXEC] = "kexec", | |
142 | [HANDLE_SUSPEND] = "suspend", | |
143 | [HANDLE_HIBERNATE] = "hibernate", | |
144 | [HANDLE_HYBRID_SLEEP] = "hybrid-sleep", | |
145 | [HANDLE_LOCK] = "lock" | |
146 | }; | |
147 | ||
148 | DEFINE_STRING_TABLE_LOOKUP(handle_action, HandleAction); | |
149 | DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_action, handle_action, HandleAction, "Failed to parse handle action setting"); |