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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
23406ce5 | 2 | |
dc3a1b76 LP |
3 | #include <unistd.h> |
4 | ||
b5efdb8a | 5 | #include "alloc-util.h" |
cc377381 | 6 | #include "bus-error.h" |
8b43440b LP |
7 | #include "bus-util.h" |
8 | #include "conf-parser.h" | |
f97b34a6 | 9 | #include "format-util.h" |
8b43440b | 10 | #include "logind-action.h" |
6ecda0fb LP |
11 | #include "logind-dbus.h" |
12 | #include "logind-session-dbus.h" | |
0b452006 | 13 | #include "process-util.h" |
8b43440b LP |
14 | #include "sleep-config.h" |
15 | #include "special.h" | |
16 | #include "string-table.h" | |
288a74cc | 17 | #include "terminal-util.h" |
b1d4f8e1 | 18 | #include "user-util.h" |
23406ce5 | 19 | |
c8c8ee85 ZJS |
20 | const char* manager_target_for_action(HandleAction handle) { |
21 | static const char * const target_table[_HANDLE_ACTION_MAX] = { | |
22 | [HANDLE_POWEROFF] = SPECIAL_POWEROFF_TARGET, | |
23 | [HANDLE_REBOOT] = SPECIAL_REBOOT_TARGET, | |
24 | [HANDLE_HALT] = SPECIAL_HALT_TARGET, | |
25 | [HANDLE_KEXEC] = SPECIAL_KEXEC_TARGET, | |
26 | [HANDLE_SUSPEND] = SPECIAL_SUSPEND_TARGET, | |
27 | [HANDLE_HIBERNATE] = SPECIAL_HIBERNATE_TARGET, | |
28 | [HANDLE_HYBRID_SLEEP] = SPECIAL_HYBRID_SLEEP_TARGET, | |
29 | [HANDLE_SUSPEND_THEN_HIBERNATE] = SPECIAL_SUSPEND_THEN_HIBERNATE_TARGET, | |
30 | }; | |
31 | ||
32 | assert(handle >= 0); | |
33 | if (handle < (ssize_t) ELEMENTSOF(target_table)) | |
34 | return target_table[handle]; | |
35 | return NULL; | |
36 | } | |
37 | ||
23406ce5 LP |
38 | int manager_handle_action( |
39 | Manager *m, | |
40 | InhibitWhat inhibit_key, | |
41 | HandleAction handle, | |
42 | bool ignore_inhibited, | |
43 | bool is_edge) { | |
44 | ||
45 | static const char * const message_table[_HANDLE_ACTION_MAX] = { | |
46 | [HANDLE_POWEROFF] = "Powering Off...", | |
47 | [HANDLE_REBOOT] = "Rebooting...", | |
48 | [HANDLE_HALT] = "Halting...", | |
49 | [HANDLE_KEXEC] = "Rebooting via kexec...", | |
50 | [HANDLE_SUSPEND] = "Suspending...", | |
51 | [HANDLE_HIBERNATE] = "Hibernating...", | |
c58493c0 | 52 | [HANDLE_HYBRID_SLEEP] = "Hibernating and suspending...", |
e68c79db | 53 | [HANDLE_SUSPEND_THEN_HIBERNATE] = "Suspending, then hibernating...", |
23406ce5 LP |
54 | }; |
55 | ||
4afd3348 | 56 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
23406ce5 | 57 | InhibitWhat inhibit_operation; |
85a428c6 | 58 | Inhibitor *offending = NULL; |
af9792ac | 59 | bool supported; |
c8c8ee85 | 60 | const char *target; |
cc377381 | 61 | int r; |
23406ce5 LP |
62 | |
63 | assert(m); | |
64 | ||
65 | /* If the key handling is turned off, don't do anything */ | |
66 | if (handle == HANDLE_IGNORE) { | |
67 | log_debug("Refusing operation, as it is turned off."); | |
68 | return 0; | |
69 | } | |
70 | ||
2d62c530 | 71 | if (inhibit_key == INHIBIT_HANDLE_LID_SWITCH) { |
f9cd6be1 LP |
72 | /* If the last system suspend or startup is too close, |
73 | * let's not suspend for now, to give USB docking | |
74 | * stations some time to settle so that we can | |
75 | * properly watch its displays. */ | |
76 | if (m->lid_switch_ignore_event_source) { | |
77 | log_debug("Ignoring lid switch request, system startup or resume too close."); | |
78 | return 0; | |
79 | } | |
2d62c530 LP |
80 | } |
81 | ||
cc377381 | 82 | /* If the key handling is inhibited, don't do anything */ |
06a70b91 | 83 | if (inhibit_key > 0) { |
85a428c6 | 84 | if (manager_is_inhibited(m, inhibit_key, INHIBIT_BLOCK, NULL, true, false, 0, NULL)) { |
cc377381 LP |
85 | log_debug("Refusing operation, %s is inhibited.", inhibit_what_to_string(inhibit_key)); |
86 | return 0; | |
87 | } | |
88 | } | |
89 | ||
90 | /* Locking is handled differently from the rest. */ | |
91 | if (handle == HANDLE_LOCK) { | |
ed4ba7e4 LP |
92 | if (!is_edge) |
93 | return 0; | |
94 | ||
cc377381 LP |
95 | log_info("Locking sessions..."); |
96 | session_send_lock_all(m, true); | |
97 | return 1; | |
98 | } | |
99 | ||
dc3a1b76 | 100 | if (handle == HANDLE_SUSPEND) |
19adb8a3 | 101 | supported = can_sleep("suspend") > 0; |
dc3a1b76 | 102 | else if (handle == HANDLE_HIBERNATE) |
19adb8a3 | 103 | supported = can_sleep("hibernate") > 0; |
dc3a1b76 | 104 | else if (handle == HANDLE_HYBRID_SLEEP) |
19adb8a3 | 105 | supported = can_sleep("hybrid-sleep") > 0; |
e68c79db ML |
106 | else if (handle == HANDLE_SUSPEND_THEN_HIBERNATE) |
107 | supported = can_sleep("suspend-then-hibernate") > 0; | |
dc3a1b76 | 108 | else if (handle == HANDLE_KEXEC) |
78013564 | 109 | supported = access(KEXEC, X_OK) >= 0; |
af9792ac LP |
110 | else |
111 | supported = true; | |
dc3a1b76 | 112 | |
c282daed LP |
113 | if (!supported && IN_SET(handle, HANDLE_HIBERNATE, HANDLE_HYBRID_SLEEP, HANDLE_SUSPEND_THEN_HIBERNATE)) { |
114 | supported = can_sleep("suspend") > 0; | |
115 | if (supported) { | |
116 | log_notice("Operation '%s' requested but not supported, using regular suspend instead.", handle_action_to_string(handle)); | |
117 | handle = HANDLE_SUSPEND; | |
118 | } | |
119 | } | |
120 | ||
dc3a1b76 LP |
121 | if (!supported) { |
122 | log_warning("Requested operation not supported, ignoring."); | |
15411c0c | 123 | return -EOPNOTSUPP; |
dc3a1b76 LP |
124 | } |
125 | ||
f8bfa318 | 126 | if (m->action_what > 0) { |
cc377381 LP |
127 | log_debug("Action already in progress, ignoring."); |
128 | return -EALREADY; | |
23406ce5 LP |
129 | } |
130 | ||
c8c8ee85 ZJS |
131 | assert_se(target = manager_target_for_action(handle)); |
132 | ||
c58493c0 ML |
133 | inhibit_operation = IN_SET(handle, HANDLE_SUSPEND, HANDLE_HIBERNATE, |
134 | HANDLE_HYBRID_SLEEP, | |
e68c79db | 135 | HANDLE_SUSPEND_THEN_HIBERNATE) ? INHIBIT_SLEEP : INHIBIT_SHUTDOWN; |
23406ce5 LP |
136 | |
137 | /* If the actual operation is inhibited, warn and fail */ | |
138 | if (!ignore_inhibited && | |
85a428c6 LP |
139 | manager_is_inhibited(m, inhibit_operation, INHIBIT_BLOCK, NULL, false, false, 0, &offending)) { |
140 | _cleanup_free_ char *comm = NULL, *u = NULL; | |
141 | ||
07be8669 | 142 | (void) get_process_comm(offending->pid, &comm); |
85a428c6 | 143 | u = uid_to_name(offending->uid); |
23406ce5 LP |
144 | |
145 | /* If this is just a recheck of the lid switch then don't warn about anything */ | |
146 | if (!is_edge) { | |
de0671ee | 147 | log_debug("Refusing operation, %s is inhibited by UID "UID_FMT"/%s, PID "PID_FMT"/%s.", |
85a428c6 | 148 | inhibit_what_to_string(inhibit_operation), |
de0671ee ZJS |
149 | offending->uid, strna(u), |
150 | offending->pid, strna(comm)); | |
23406ce5 LP |
151 | return 0; |
152 | } | |
153 | ||
de0671ee | 154 | log_error("Refusing operation, %s is inhibited by UID "UID_FMT"/%s, PID "PID_FMT"/%s.", |
85a428c6 | 155 | inhibit_what_to_string(inhibit_operation), |
de0671ee ZJS |
156 | offending->uid, strna(u), |
157 | offending->pid, strna(comm)); | |
85a428c6 | 158 | |
23406ce5 LP |
159 | return -EPERM; |
160 | } | |
161 | ||
162 | log_info("%s", message_table[handle]); | |
163 | ||
c8c8ee85 | 164 | r = bus_manager_shutdown_or_sleep_now_or_later(m, target, inhibit_operation, &error); |
4ae25393 YW |
165 | if (r < 0) |
166 | return log_error_errno(r, "Failed to execute operation: %s", bus_error_message(&error, r)); | |
23406ce5 LP |
167 | |
168 | return 1; | |
169 | } | |
170 | ||
171 | static const char* const handle_action_table[_HANDLE_ACTION_MAX] = { | |
172 | [HANDLE_IGNORE] = "ignore", | |
173 | [HANDLE_POWEROFF] = "poweroff", | |
174 | [HANDLE_REBOOT] = "reboot", | |
175 | [HANDLE_HALT] = "halt", | |
176 | [HANDLE_KEXEC] = "kexec", | |
177 | [HANDLE_SUSPEND] = "suspend", | |
178 | [HANDLE_HIBERNATE] = "hibernate", | |
179 | [HANDLE_HYBRID_SLEEP] = "hybrid-sleep", | |
e68c79db | 180 | [HANDLE_SUSPEND_THEN_HIBERNATE] = "suspend-then-hibernate", |
c8c8ee85 | 181 | [HANDLE_LOCK] = "lock", |
23406ce5 LP |
182 | }; |
183 | ||
184 | DEFINE_STRING_TABLE_LOOKUP(handle_action, HandleAction); | |
185 | DEFINE_CONFIG_PARSE_ENUM(config_parse_handle_action, handle_action, HandleAction, "Failed to parse handle action setting"); |