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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
2928b0a8 LP |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2014 Lennart Poettering | |
6 | Copyright 2012 Michael Olbrich | |
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 | ||
22 | #include <sys/reboot.h> | |
23 | #include <linux/reboot.h> | |
2928b0a8 | 24 | |
2928b0a8 | 25 | #include "bus-error.h" |
8b43440b | 26 | #include "bus-util.h" |
87a47f99 | 27 | #include "emergency-action.h" |
8b43440b LP |
28 | #include "special.h" |
29 | #include "string-table.h" | |
288a74cc | 30 | #include "terminal-util.h" |
2928b0a8 | 31 | |
87a47f99 LN |
32 | static void log_and_status(Manager *m, const char *message, const char *reason) { |
33 | log_warning("%s: %s", message, reason); | |
ebc5788e | 34 | manager_status_printf(m, STATUS_TYPE_EMERGENCY, |
9b9881d7 | 35 | ANSI_HIGHLIGHT_RED " !! " ANSI_NORMAL, |
87a47f99 | 36 | "%s: %s", message, reason); |
ebc5788e ZJS |
37 | } |
38 | ||
87a47f99 | 39 | int emergency_action( |
2928b0a8 | 40 | Manager *m, |
87a47f99 LN |
41 | EmergencyAction action, |
42 | const char *reboot_arg, | |
43 | const char *reason) { | |
2928b0a8 | 44 | |
2928b0a8 LP |
45 | assert(m); |
46 | assert(action >= 0); | |
87a47f99 | 47 | assert(action < _EMERGENCY_ACTION_MAX); |
2928b0a8 | 48 | |
87a47f99 | 49 | if (action == EMERGENCY_ACTION_NONE) |
f07756bf | 50 | return -ECANCELED; |
2928b0a8 | 51 | |
463d0d15 | 52 | if (!MANAGER_IS_SYSTEM(m)) { |
f07756bf LP |
53 | /* Downgrade all options to simply exiting if we run |
54 | * in user mode */ | |
55 | ||
87a47f99 | 56 | log_warning("Exiting: %s", reason); |
f07756bf LP |
57 | m->exit_code = MANAGER_EXIT; |
58 | return -ECANCELED; | |
59 | } | |
60 | ||
61 | switch (action) { | |
2928b0a8 | 62 | |
87a47f99 LN |
63 | case EMERGENCY_ACTION_REBOOT: |
64 | log_and_status(m, "Rebooting", reason); | |
2928b0a8 | 65 | |
27c06cb5 LP |
66 | (void) update_reboot_parameter_and_warn(reboot_arg); |
67 | (void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL); | |
2928b0a8 LP |
68 | |
69 | break; | |
2928b0a8 | 70 | |
87a47f99 LN |
71 | case EMERGENCY_ACTION_REBOOT_FORCE: |
72 | log_and_status(m, "Forcibly rebooting", reason); | |
ebc5788e | 73 | |
27c06cb5 | 74 | (void) update_reboot_parameter_and_warn(reboot_arg); |
2928b0a8 | 75 | m->exit_code = MANAGER_REBOOT; |
27c06cb5 | 76 | |
2928b0a8 LP |
77 | break; |
78 | ||
87a47f99 LN |
79 | case EMERGENCY_ACTION_REBOOT_IMMEDIATE: |
80 | log_and_status(m, "Rebooting immediately", reason); | |
2928b0a8 LP |
81 | |
82 | sync(); | |
83 | ||
27c06cb5 | 84 | if (!isempty(reboot_arg)) { |
2928b0a8 LP |
85 | log_info("Rebooting with argument '%s'.", reboot_arg); |
86 | syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, reboot_arg); | |
27c06cb5 | 87 | log_warning_errno(errno, "Failed to reboot with parameter, retrying without: %m"); |
2928b0a8 LP |
88 | } |
89 | ||
90 | log_info("Rebooting."); | |
91 | reboot(RB_AUTOBOOT); | |
92 | break; | |
93 | ||
87a47f99 LN |
94 | case EMERGENCY_ACTION_POWEROFF: |
95 | log_and_status(m, "Powering off", reason); | |
27c06cb5 | 96 | (void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_POWEROFF_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL); |
f07756bf | 97 | break; |
f07756bf | 98 | |
87a47f99 LN |
99 | case EMERGENCY_ACTION_POWEROFF_FORCE: |
100 | log_and_status(m, "Forcibly powering off", reason); | |
f07756bf LP |
101 | m->exit_code = MANAGER_POWEROFF; |
102 | break; | |
103 | ||
87a47f99 LN |
104 | case EMERGENCY_ACTION_POWEROFF_IMMEDIATE: |
105 | log_and_status(m, "Powering off immediately", reason); | |
f07756bf LP |
106 | |
107 | sync(); | |
108 | ||
109 | log_info("Powering off."); | |
110 | reboot(RB_POWER_OFF); | |
111 | break; | |
112 | ||
2928b0a8 | 113 | default: |
87a47f99 | 114 | assert_not_reached("Unknown emergency action"); |
2928b0a8 LP |
115 | } |
116 | ||
117 | return -ECANCELED; | |
118 | } | |
119 | ||
87a47f99 LN |
120 | static const char* const emergency_action_table[_EMERGENCY_ACTION_MAX] = { |
121 | [EMERGENCY_ACTION_NONE] = "none", | |
122 | [EMERGENCY_ACTION_REBOOT] = "reboot", | |
123 | [EMERGENCY_ACTION_REBOOT_FORCE] = "reboot-force", | |
124 | [EMERGENCY_ACTION_REBOOT_IMMEDIATE] = "reboot-immediate", | |
125 | [EMERGENCY_ACTION_POWEROFF] = "poweroff", | |
126 | [EMERGENCY_ACTION_POWEROFF_FORCE] = "poweroff-force", | |
127 | [EMERGENCY_ACTION_POWEROFF_IMMEDIATE] = "poweroff-immediate" | |
2928b0a8 | 128 | }; |
87a47f99 | 129 | DEFINE_STRING_TABLE_LOOKUP(emergency_action, EmergencyAction); |