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core: limit service-watchdogs=no to actual "watchdog" commands

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The setting is now only looked at when considering an action for a job timeout
or unit start limit. It is ignored for ctrl-alt-del, SuccessAction, SuccessFailure.

v2: turn the parameter into a flag field
v3: rename Options to Flags
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2018-10-16 15:24:44 +02:00
parent 3f00d379fa
commit 1710d4beff
5 changed files with 18 additions and 7 deletions
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3
src/core/emergency-action.c
View File

@ -21,6 +21,7 @@ static void log_and_status(Manager *m, const char *message, const char *reason)
int emergency_action(
Manager *m,
EmergencyAction action,
EmergencyActionFlags options,
const char *reboot_arg,
const char *reason) {
@ -31,7 +32,7 @@ int emergency_action(
if (action == EMERGENCY_ACTION_NONE)
return -ECANCELED;
if (!m->service_watchdogs) {
if (FLAGS_SET(options, EMERGENCY_ACTION_IS_WATCHDOG) && !m->service_watchdogs) {
log_warning("Watchdog disabled! Not acting on: %s", reason);
return -ECANCELED;
}

8
src/core/emergency-action.h
View File

@ -16,10 +16,16 @@ typedef enum EmergencyAction {
_EMERGENCY_ACTION_INVALID = -1
} EmergencyAction;
typedef enum EmergencyActionFlags {
EMERGENCY_ACTION_IS_WATCHDOG = 1 << 0,
} EmergencyActionFlags;
#include "macro.h"
#include "manager.h"
int emergency_action(Manager *m, EmergencyAction action, const char *reboot_arg, const char *reason);
int emergency_action(Manager *m,
EmergencyAction action, EmergencyActionFlags options,
const char *reboot_arg, const char *reason);
const char* emergency_action_to_string(EmergencyAction i) _const_;
EmergencyAction emergency_action_from_string(const char *s) _pure_;

3
src/core/job.c
View File

@ -973,7 +973,8 @@ static int job_dispatch_timer(sd_event_source *s, uint64_t monotonic, void *user
u = j->unit;
job_finish_and_invalidate(j, JOB_TIMEOUT, true, false);
emergency_action(u->manager, u->job_timeout_action, u->job_timeout_reboot_arg, "job timed out");
emergency_action(u->manager, u->job_timeout_action, EMERGENCY_ACTION_IS_WATCHDOG,
u->job_timeout_reboot_arg, "job timed out");
return 0;
}

2
src/core/manager.c
View File

@ -2538,7 +2538,7 @@ static void manager_handle_ctrl_alt_del(Manager *m) {
if (ratelimit_below(&m->ctrl_alt_del_ratelimit) || m->cad_burst_action == EMERGENCY_ACTION_NONE)
manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);
else
emergency_action(m, m->cad_burst_action, NULL,
emergency_action(m, m->cad_burst_action, 0, NULL,
"Ctrl-Alt-Del was pressed more than 7 times within 2s");
}

9
src/core/unit.c
View File

@ -1724,7 +1724,8 @@ int unit_start_limit_test(Unit *u) {
log_unit_warning(u, "Start request repeated too quickly.");
u->start_limit_hit = true;
return emergency_action(u->manager, u->start_limit_action, u->reboot_arg, "unit failed");
return emergency_action(u->manager, u->start_limit_action, EMERGENCY_ACTION_IS_WATCHDOG,
u->reboot_arg, "unit failed");
}
bool unit_shall_confirm_spawn(Unit *u) {
@ -2498,9 +2499,11 @@ void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, UnitNotifyFlag
unit_check_binds_to(u);
if (os != UNIT_FAILED && ns == UNIT_FAILED)
(void) emergency_action(u->manager, u->failure_action, u->reboot_arg, "unit failed");
(void) emergency_action(u->manager, u->failure_action, 0,
u->reboot_arg, "unit failed");
else if (!UNIT_IS_INACTIVE_OR_FAILED(os) && ns == UNIT_INACTIVE)
(void) emergency_action(u->manager, u->success_action, u->reboot_arg, "unit succeeded");
(void) emergency_action(u->manager, u->success_action, 0,
u->reboot_arg, "unit succeeded");
}
unit_add_to_dbus_queue(u);