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2928b0a8 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2014 Lennart Poettering | |
5 | Copyright 2012 Michael Olbrich | |
6 | ||
7 | systemd 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. | |
11 | ||
12 | systemd 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. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public License | |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
19 | ***/ | |
20 | ||
21 | #include <sys/reboot.h> | |
22 | #include <linux/reboot.h> | |
2928b0a8 | 23 | |
2928b0a8 | 24 | #include "bus-error.h" |
8b43440b | 25 | #include "bus-util.h" |
87a47f99 | 26 | #include "emergency-action.h" |
8b43440b LP |
27 | #include "special.h" |
28 | #include "string-table.h" | |
288a74cc | 29 | #include "terminal-util.h" |
2928b0a8 | 30 | |
87a47f99 LN |
31 | static void log_and_status(Manager *m, const char *message, const char *reason) { |
32 | log_warning("%s: %s", message, reason); | |
ebc5788e | 33 | manager_status_printf(m, STATUS_TYPE_EMERGENCY, |
1fc464f6 | 34 | ANSI_HIGHLIGHT_RED " !! " ANSI_NORMAL, |
87a47f99 | 35 | "%s: %s", message, reason); |
ebc5788e ZJS |
36 | } |
37 | ||
87a47f99 | 38 | int emergency_action( |
2928b0a8 | 39 | Manager *m, |
87a47f99 LN |
40 | EmergencyAction action, |
41 | const char *reboot_arg, | |
42 | const char *reason) { | |
2928b0a8 | 43 | |
2928b0a8 LP |
44 | assert(m); |
45 | assert(action >= 0); | |
87a47f99 | 46 | assert(action < _EMERGENCY_ACTION_MAX); |
2928b0a8 | 47 | |
87a47f99 | 48 | if (action == EMERGENCY_ACTION_NONE) |
f07756bf | 49 | return -ECANCELED; |
2928b0a8 | 50 | |
463d0d15 | 51 | if (!MANAGER_IS_SYSTEM(m)) { |
f07756bf LP |
52 | /* Downgrade all options to simply exiting if we run |
53 | * in user mode */ | |
54 | ||
87a47f99 | 55 | log_warning("Exiting: %s", reason); |
f07756bf LP |
56 | m->exit_code = MANAGER_EXIT; |
57 | return -ECANCELED; | |
58 | } | |
59 | ||
60 | switch (action) { | |
2928b0a8 | 61 | |
87a47f99 LN |
62 | case EMERGENCY_ACTION_REBOOT: |
63 | log_and_status(m, "Rebooting", reason); | |
2928b0a8 | 64 | |
27c06cb5 LP |
65 | (void) update_reboot_parameter_and_warn(reboot_arg); |
66 | (void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL); | |
2928b0a8 LP |
67 | |
68 | break; | |
2928b0a8 | 69 | |
87a47f99 LN |
70 | case EMERGENCY_ACTION_REBOOT_FORCE: |
71 | log_and_status(m, "Forcibly rebooting", reason); | |
ebc5788e | 72 | |
27c06cb5 | 73 | (void) update_reboot_parameter_and_warn(reboot_arg); |
2928b0a8 | 74 | m->exit_code = MANAGER_REBOOT; |
27c06cb5 | 75 | |
2928b0a8 LP |
76 | break; |
77 | ||
87a47f99 LN |
78 | case EMERGENCY_ACTION_REBOOT_IMMEDIATE: |
79 | log_and_status(m, "Rebooting immediately", reason); | |
2928b0a8 LP |
80 | |
81 | sync(); | |
82 | ||
27c06cb5 | 83 | if (!isempty(reboot_arg)) { |
2928b0a8 LP |
84 | log_info("Rebooting with argument '%s'.", reboot_arg); |
85 | syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_RESTART2, reboot_arg); | |
27c06cb5 | 86 | log_warning_errno(errno, "Failed to reboot with parameter, retrying without: %m"); |
2928b0a8 LP |
87 | } |
88 | ||
89 | log_info("Rebooting."); | |
90 | reboot(RB_AUTOBOOT); | |
91 | break; | |
92 | ||
87a47f99 LN |
93 | case EMERGENCY_ACTION_POWEROFF: |
94 | log_and_status(m, "Powering off", reason); | |
27c06cb5 | 95 | (void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_POWEROFF_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL); |
f07756bf | 96 | break; |
f07756bf | 97 | |
87a47f99 LN |
98 | case EMERGENCY_ACTION_POWEROFF_FORCE: |
99 | log_and_status(m, "Forcibly powering off", reason); | |
f07756bf LP |
100 | m->exit_code = MANAGER_POWEROFF; |
101 | break; | |
102 | ||
87a47f99 LN |
103 | case EMERGENCY_ACTION_POWEROFF_IMMEDIATE: |
104 | log_and_status(m, "Powering off immediately", reason); | |
f07756bf LP |
105 | |
106 | sync(); | |
107 | ||
108 | log_info("Powering off."); | |
109 | reboot(RB_POWER_OFF); | |
110 | break; | |
111 | ||
2928b0a8 | 112 | default: |
87a47f99 | 113 | assert_not_reached("Unknown emergency action"); |
2928b0a8 LP |
114 | } |
115 | ||
116 | return -ECANCELED; | |
117 | } | |
118 | ||
87a47f99 LN |
119 | static const char* const emergency_action_table[_EMERGENCY_ACTION_MAX] = { |
120 | [EMERGENCY_ACTION_NONE] = "none", | |
121 | [EMERGENCY_ACTION_REBOOT] = "reboot", | |
122 | [EMERGENCY_ACTION_REBOOT_FORCE] = "reboot-force", | |
123 | [EMERGENCY_ACTION_REBOOT_IMMEDIATE] = "reboot-immediate", | |
124 | [EMERGENCY_ACTION_POWEROFF] = "poweroff", | |
125 | [EMERGENCY_ACTION_POWEROFF_FORCE] = "poweroff-force", | |
126 | [EMERGENCY_ACTION_POWEROFF_IMMEDIATE] = "poweroff-immediate" | |
2928b0a8 | 127 | }; |
87a47f99 | 128 | DEFINE_STRING_TABLE_LOOKUP(emergency_action, EmergencyAction); |