1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
/* SPDX-License-Identifier: LGPL-2.1+ */
#include <sys/reboot.h>
#include "bus-error.h"
#include "bus-util.h"
#include "emergency-action.h"
#include "raw-reboot.h"
#include "reboot-util.h"
#include "special.h"
#include "string-table.h"
#include "terminal-util.h"
#include "virt.h"
static void log_and_status(Manager *m, bool warn, const char *message, const char *reason) {
log_full(warn ? LOG_WARNING : LOG_DEBUG, "%s: %s", message, reason);
if (warn)
manager_status_printf(m, STATUS_TYPE_EMERGENCY,
ANSI_HIGHLIGHT_RED " !! " ANSI_NORMAL,
"%s: %s", message, reason);
}
void emergency_action(
Manager *m,
EmergencyAction action,
EmergencyActionFlags options,
const char *reboot_arg,
int exit_status,
const char *reason) {
assert(m);
assert(action >= 0);
assert(action < _EMERGENCY_ACTION_MAX);
if (action == EMERGENCY_ACTION_NONE)
return;
if (FLAGS_SET(options, EMERGENCY_ACTION_IS_WATCHDOG) && !m->service_watchdogs) {
log_warning("Watchdog disabled! Not acting on: %s", reason);
return;
}
bool warn = FLAGS_SET(options, EMERGENCY_ACTION_WARN);
switch (action) {
case EMERGENCY_ACTION_REBOOT:
log_and_status(m, warn, "Rebooting", reason);
(void) update_reboot_parameter_and_warn(reboot_arg, true);
(void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL, NULL);
break;
case EMERGENCY_ACTION_REBOOT_FORCE:
log_and_status(m, warn, "Forcibly rebooting", reason);
(void) update_reboot_parameter_and_warn(reboot_arg, true);
m->objective = MANAGER_REBOOT;
break;
case EMERGENCY_ACTION_REBOOT_IMMEDIATE:
log_and_status(m, warn, "Rebooting immediately", reason);
sync();
if (!isempty(reboot_arg)) {
log_info("Rebooting with argument '%s'.", reboot_arg);
(void) raw_reboot(LINUX_REBOOT_CMD_RESTART2, reboot_arg);
log_warning_errno(errno, "Failed to reboot with parameter, retrying without: %m");
}
log_info("Rebooting.");
(void) reboot(RB_AUTOBOOT);
break;
case EMERGENCY_ACTION_EXIT:
if (exit_status >= 0)
m->return_value = exit_status;
if (MANAGER_IS_USER(m) || detect_container() > 0) {
log_and_status(m, warn, "Exiting", reason);
(void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_EXIT_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL, NULL);
break;
}
log_notice("Doing \"poweroff\" action instead of an \"exit\" emergency action.");
_fallthrough_;
case EMERGENCY_ACTION_POWEROFF:
log_and_status(m, warn, "Powering off", reason);
(void) manager_add_job_by_name_and_warn(m, JOB_START, SPECIAL_POWEROFF_TARGET, JOB_REPLACE_IRREVERSIBLY, NULL, NULL);
break;
case EMERGENCY_ACTION_EXIT_FORCE:
if (exit_status >= 0)
m->return_value = exit_status;
if (MANAGER_IS_USER(m) || detect_container() > 0) {
log_and_status(m, warn, "Exiting immediately", reason);
m->objective = MANAGER_EXIT;
break;
}
log_notice("Doing \"poweroff-force\" action instead of an \"exit-force\" emergency action.");
_fallthrough_;
case EMERGENCY_ACTION_POWEROFF_FORCE:
log_and_status(m, warn, "Forcibly powering off", reason);
m->objective = MANAGER_POWEROFF;
break;
case EMERGENCY_ACTION_POWEROFF_IMMEDIATE:
log_and_status(m, warn, "Powering off immediately", reason);
sync();
log_info("Powering off.");
(void) reboot(RB_POWER_OFF);
break;
default:
assert_not_reached("Unknown emergency action");
}
}
static const char* const emergency_action_table[_EMERGENCY_ACTION_MAX] = {
[EMERGENCY_ACTION_NONE] = "none",
[EMERGENCY_ACTION_REBOOT] = "reboot",
[EMERGENCY_ACTION_REBOOT_FORCE] = "reboot-force",
[EMERGENCY_ACTION_REBOOT_IMMEDIATE] = "reboot-immediate",
[EMERGENCY_ACTION_POWEROFF] = "poweroff",
[EMERGENCY_ACTION_POWEROFF_FORCE] = "poweroff-force",
[EMERGENCY_ACTION_POWEROFF_IMMEDIATE] = "poweroff-immediate",
[EMERGENCY_ACTION_EXIT] = "exit",
[EMERGENCY_ACTION_EXIT_FORCE] = "exit-force",
};
DEFINE_STRING_TABLE_LOOKUP(emergency_action, EmergencyAction);
int parse_emergency_action(
const char *value,
bool system,
EmergencyAction *ret) {
EmergencyAction x;
x = emergency_action_from_string(value);
if (x < 0)
return -EINVAL;
if (!system && x != EMERGENCY_ACTION_NONE && x < _EMERGENCY_ACTION_FIRST_USER_ACTION)
return -EOPNOTSUPP;
*ret = x;
return 0;
}
|
