#include <dirent.h>
#include <unistd.h>
#include <sys/reboot.h>
+#include <linux/reboot.h>
+#include <sys/syscall.h>
#include "manager.h"
#include "unit.h"
#include "unit-printf.h"
#include "dbus-service.h"
#include "special.h"
-#include "dbus-common.h"
#include "exit-status.h"
#include "def.h"
#include "path-util.h"
#include "utf8.h"
#include "env-util.h"
#include "fileio.h"
+#include "bus-error.h"
+#include "bus-util.h"
#ifdef HAVE_SYSV_COMPAT
[SERVICE_AUTO_RESTART] = UNIT_ACTIVATING
};
+static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata);
+static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata);
+static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata);
+
+static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
+
static void service_init(Unit *u) {
Service *s = SERVICE(u);
assert(u);
assert(u->load_state == UNIT_STUB);
- s->timeout_start_usec = DEFAULT_TIMEOUT_USEC;
- s->timeout_stop_usec = DEFAULT_TIMEOUT_USEC;
- s->restart_usec = DEFAULT_RESTART_USEC;
+ s->timeout_start_usec = u->manager->default_timeout_start_usec;
+ s->timeout_stop_usec = u->manager->default_timeout_stop_usec;
+ s->restart_usec = u->manager->default_restart_usec;
s->type = _SERVICE_TYPE_INVALID;
- watch_init(&s->watchdog_watch);
- watch_init(&s->timer_watch);
-
#ifdef HAVE_SYSV_COMPAT
s->sysv_start_priority = -1;
s->sysv_start_priority_from_rcnd = -1;
s->socket_fd = -1;
s->guess_main_pid = true;
- exec_context_init(&s->exec_context);
- kill_context_init(&s->kill_context);
- cgroup_context_init(&s->cgroup_context);
-
- RATELIMIT_INIT(s->start_limit, 10*USEC_PER_SEC, 5);
+ RATELIMIT_INIT(s->start_limit, u->manager->default_start_limit_interval, u->manager->default_start_limit_burst);
s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
}
log_debug_unit(UNIT(s)->id, "Stopping watch for %s's PID file %s",
UNIT(s)->id, s->pid_file_pathspec->path);
- path_spec_unwatch(s->pid_file_pathspec, UNIT(s));
+ path_spec_unwatch(s->pid_file_pathspec);
path_spec_done(s->pid_file_pathspec);
free(s->pid_file_pathspec);
s->pid_file_pathspec = NULL;
if (get_parent_of_pid(pid, &ppid) >= 0 && ppid != getpid()) {
log_warning_unit(UNIT(s)->id,
- "%s: Supervising process %lu which is not our child. We'll most likely not notice when it exits.",
- UNIT(s)->id, (unsigned long) pid);
+ "%s: Supervising process "PID_FMT" which is not our child. We'll most likely not notice when it exits.",
+ UNIT(s)->id, pid);
s->main_pid_alien = true;
} else
if (s->socket_fd < 0)
return;
- close_nointr_nofail(s->socket_fd);
- s->socket_fd = -1;
+ s->socket_fd = safe_close(s->socket_fd);
}
static void service_connection_unref(Service *s) {
static void service_stop_watchdog(Service *s) {
assert(s);
- unit_unwatch_timer(UNIT(s), &s->watchdog_watch);
- s->watchdog_timestamp.realtime = 0;
- s->watchdog_timestamp.monotonic = 0;
+ s->watchdog_event_source = sd_event_source_unref(s->watchdog_event_source);
+ s->watchdog_timestamp = DUAL_TIMESTAMP_NULL;
}
-static void service_enter_signal(Service *s, ServiceState state, ServiceResult f);
-
-static void service_handle_watchdog(Service *s) {
- usec_t offset;
+static void service_start_watchdog(Service *s) {
int r;
assert(s);
- if (s->watchdog_usec == 0)
+ if (s->watchdog_usec <= 0)
return;
- offset = now(CLOCK_MONOTONIC) - s->watchdog_timestamp.monotonic;
- if (offset >= s->watchdog_usec) {
- log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id);
- service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_WATCHDOG);
- return;
+ if (s->watchdog_event_source) {
+ r = sd_event_source_set_time(s->watchdog_event_source, s->watchdog_timestamp.monotonic + s->watchdog_usec);
+ if (r < 0) {
+ log_warning_unit(UNIT(s)->id, "%s failed to reset watchdog timer: %s", UNIT(s)->id, strerror(-r));
+ return;
+ }
+
+ r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ONESHOT);
+ } else {
+ r = sd_event_add_time(
+ UNIT(s)->manager->event,
+ &s->watchdog_event_source,
+ CLOCK_MONOTONIC,
+ s->watchdog_timestamp.monotonic + s->watchdog_usec, 0,
+ service_dispatch_watchdog, s);
+ if (r < 0) {
+ log_warning_unit(UNIT(s)->id, "%s failed to add watchdog timer: %s", UNIT(s)->id, strerror(-r));
+ return;
+ }
+
+ /* Let's process everything else which might be a sign
+ * of living before we consider a service died. */
+ r = sd_event_source_set_priority(s->watchdog_event_source, SD_EVENT_PRIORITY_IDLE);
}
- r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->watchdog_usec - offset, &s->watchdog_watch);
if (r < 0)
- log_warning_unit(UNIT(s)->id,
- "%s failed to install watchdog timer: %s",
- UNIT(s)->id, strerror(-r));
+ log_warning_unit(UNIT(s)->id, "%s failed to install watchdog timer: %s", UNIT(s)->id, strerror(-r));
}
static void service_reset_watchdog(Service *s) {
assert(s);
dual_timestamp_get(&s->watchdog_timestamp);
- service_handle_watchdog(s);
+ service_start_watchdog(s);
}
static void service_done(Unit *u) {
free(s->status_text);
s->status_text = NULL;
- cgroup_context_done(&s->cgroup_context);
- exec_context_done(&s->exec_context, manager_is_reloading_or_reexecuting(u->manager));
+ free(s->reboot_arg);
+ s->reboot_arg = NULL;
+
+ s->exec_runtime = exec_runtime_unref(s->exec_runtime);
exec_command_free_array(s->exec_command, _SERVICE_EXEC_COMMAND_MAX);
s->control_command = NULL;
s->main_command = NULL;
service_stop_watchdog(s);
- unit_unwatch_timer(u, &s->timer_watch);
+ s->timer_event_source = sd_event_source_unref(s->timer_event_source);
+}
+
+static int service_arm_timer(Service *s, usec_t usec) {
+ int r;
+
+ assert(s);
+
+ if (s->timer_event_source) {
+ r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + usec);
+ if (r < 0)
+ return r;
+
+ return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT);
+ }
+
+ return sd_event_add_time(
+ UNIT(s)->manager->event,
+ &s->timer_event_source,
+ CLOCK_MONOTONIC,
+ now(CLOCK_MONOTONIC) + usec, 0,
+ service_dispatch_timer, s);
}
#ifdef HAVE_SYSV_COMPAT
static char *sysv_translate_name(const char *name) {
char *r;
- r = new(char, strlen(name) + sizeof(".service"));
+ r = new(char, strlen(name) + strlen(".service") + 1);
if (!r)
return NULL;
state = NORMAL;
- if (sscanf(t+10, "%15s %i %*i",
- runlevels,
- &start_priority) != 2) {
-
- log_warning_unit(u->id,
- "[%s:%u] Failed to parse chkconfig line. Ignoring.",
- path, line);
+ if (sscanf(t+10, "%15s %i %*i", runlevels, &start_priority) != 2) {
+ log_warning_unit(u->id, "[%s:%u] Failed to parse chkconfig line. Ignoring.", path, line);
continue;
}
* symlink farms is preferred over the
* data from the LSB header. */
if (start_priority < 0 || start_priority > 99)
- log_warning_unit(u->id,
- "[%s:%u] Start priority out of range. Ignoring.",
- path, line);
+ log_warning_unit(u->id, "[%s:%u] Start priority out of range. Ignoring.", path, line);
else
- s->sysv_start_priority = start_priority;
+ log_debug_unit(u->id, "[%s:%u] Ignoring start priority set in the chkconfig file.", path, line);
char_array_0(runlevels);
k = delete_chars(runlevels, WHITESPACE "-");
-
if (k[0]) {
char *d;
- if (!(d = strdup(k))) {
+ d = strdup(k);
+ if (!d) {
r = -ENOMEM;
goto finish;
}
goto finish;
}
- r = sysv_translate_facility(n, path_get_file_name(path), &m);
+ r = sysv_translate_facility(n, basename(path), &m);
free(n);
if (r < 0)
goto finish;
}
- r = sysv_translate_facility(n, path_get_file_name(path), &m);
+ r = sysv_translate_facility(n, basename(path), &m);
if (r < 0) {
log_error_unit(u->id,
"[%s:%u] Failed to translate LSB dependency %s, ignoring: %s",
u->description = d;
}
- /* The priority that has been set in /etc/rcN.d/ hierarchies
- * takes precedence over what is stored as default in the LSB
- * header */
+ /* Initialize the start priority from what has been set in the
+ * /etc/rcN.d/ hierarchies if we load the unit file as SysV
+ * init script. */
if (s->sysv_start_priority_from_rcnd >= 0)
s->sysv_start_priority = s->sysv_start_priority_from_rcnd;
}
#endif
-static int fsck_fix_order(Service *s) {
- Unit *other;
- int r;
-
- assert(s);
-
- if (s->fsck_passno <= 0)
- return 0;
-
- /* For each pair of services where both have an fsck priority
- * we order things based on it. */
-
- LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_SERVICE]) {
- Service *t;
- UnitDependency d;
-
- t = SERVICE(other);
-
- if (s == t)
- continue;
-
- if (UNIT(t)->load_state != UNIT_LOADED)
- continue;
-
- if (t->fsck_passno <= 0)
- continue;
-
- if (t->fsck_passno < s->fsck_passno)
- d = UNIT_AFTER;
- else if (t->fsck_passno > s->fsck_passno)
- d = UNIT_BEFORE;
- else
- continue;
-
- r = unit_add_dependency(UNIT(s), d, UNIT(t), true);
- if (r < 0)
- return r;
- }
-
- return 0;
-}
-
static int service_verify(Service *s) {
assert(s);
return 0;
if (!s->exec_command[SERVICE_EXEC_START]) {
- log_error_unit(UNIT(s)->id,
- "%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
+ log_error_unit(UNIT(s)->id, "%s lacks ExecStart setting. Refusing.", UNIT(s)->id);
return -EINVAL;
}
if (s->type != SERVICE_ONESHOT &&
s->exec_command[SERVICE_EXEC_START]->command_next) {
- log_error_unit(UNIT(s)->id,
- "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
+ log_error_unit(UNIT(s)->id, "%s has more than one ExecStart setting, which is only allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
return -EINVAL;
}
if (s->type == SERVICE_ONESHOT && s->restart != SERVICE_RESTART_NO) {
- log_error_unit(UNIT(s)->id,
- "%s has Restart setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
+ log_error_unit(UNIT(s)->id, "%s has Restart setting other than no, which isn't allowed for Type=oneshot services. Refusing.", UNIT(s)->id);
return -EINVAL;
}
if (s->type == SERVICE_DBUS && !s->bus_name) {
- log_error_unit(UNIT(s)->id,
- "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
+ log_error_unit(UNIT(s)->id, "%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->id);
return -EINVAL;
}
if (s->bus_name && s->type != SERVICE_DBUS)
- log_warning_unit(UNIT(s)->id,
- "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
+ log_warning_unit(UNIT(s)->id, "%s has a D-Bus service name specified, but is not of type dbus. Ignoring.", UNIT(s)->id);
- if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
- log_error_unit(UNIT(s)->id,
- "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
+ if (s->exec_context.pam_name && !(s->kill_context.kill_mode == KILL_CONTROL_GROUP || s->kill_context.kill_mode == KILL_MIXED)) {
+ log_error_unit(UNIT(s)->id, "%s has PAM enabled. Kill mode must be set to 'control-group' or 'mixed'. Refusing.", UNIT(s)->id);
return -EINVAL;
}
* majority of services. */
/* First, pull in base system */
- if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) {
- r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
- SPECIAL_BASIC_TARGET, NULL, true);
- if (r < 0)
- return r;
-
- } else if (UNIT(s)->manager->running_as == SYSTEMD_USER) {
- r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
- SPECIAL_SOCKETS_TARGET, NULL, true);
- if (r < 0)
- return r;
-
- r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
- SPECIAL_TIMERS_TARGET, NULL, true);
- if (r < 0)
- return r;
-
- r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
- SPECIAL_PATHS_TARGET, NULL, true);
- if (r < 0)
- return r;
- }
+ r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
+ SPECIAL_BASIC_TARGET, NULL, true);
+ if (r < 0)
+ return r;
/* Second, activate normal shutdown */
r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS,
service_fix_output(s);
+ r = unit_patch_contexts(u);
+ if (r < 0)
+ return r;
+
r = unit_add_exec_dependencies(u, &s->exec_context);
if (r < 0)
return r;
- r = unit_add_default_slice(u);
+ r = unit_add_default_slice(u, &s->cgroup_context);
if (r < 0)
return r;
return r;
#endif
- r = fsck_fix_order(s);
- if (r < 0)
- return r;
-
- if (s->bus_name)
- if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
- return r;
-
if (s->type == SERVICE_NOTIFY && s->notify_access == NOTIFY_NONE)
s->notify_access = NOTIFY_MAIN;
if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
s->notify_access = NOTIFY_MAIN;
- if (s->type == SERVICE_DBUS || s->bus_name) {
- r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES,
- SPECIAL_DBUS_SOCKET, NULL, true);
+ if (s->bus_name) {
+ r = unit_watch_bus_name(u, s->bus_name);
if (r < 0)
return r;
}
- if (UNIT(s)->default_dependencies) {
+ if (u->default_dependencies) {
r = service_add_default_dependencies(s);
if (r < 0)
return r;
}
-
- r = unit_exec_context_defaults(u, &s->exec_context);
- if (r < 0)
- return r;
}
return service_verify(s);
if (s->control_pid > 0)
fprintf(f,
- "%sControl PID: %lu\n",
- prefix, (unsigned long) s->control_pid);
+ "%sControl PID: "PID_FMT"\n",
+ prefix, s->control_pid);
if (s->main_pid > 0)
fprintf(f,
- "%sMain PID: %lu\n"
+ "%sMain PID: "PID_FMT"\n"
"%sMain PID Known: %s\n"
"%sMain PID Alien: %s\n",
- prefix, (unsigned long) s->main_pid,
+ prefix, s->main_pid,
prefix, yes_no(s->main_pid_known),
prefix, yes_no(s->main_pid_alien));
prefix, s->sysv_runlevels);
#endif
- if (s->fsck_passno > 0)
- fprintf(f,
- "%sFsckPassNo: %i\n",
- prefix, s->fsck_passno);
-
if (s->status_text)
fprintf(f, "%sStatus Text: %s\n",
prefix, s->status_text);
return r;
}
- if (kill(pid, 0) < 0 && errno != EPERM) {
+ if (!pid_is_alive(pid)) {
if (may_warn)
- log_info_unit(UNIT(s)->id,
- "PID %lu read from file %s does not exist.",
- (unsigned long) pid, s->pid_file);
+ log_info_unit(UNIT(s)->id, "PID "PID_FMT" read from file %s does not exist or is a zombie.", pid, s->pid_file);
+
return -ESRCH;
}
return 0;
log_debug_unit(UNIT(s)->id,
- "Main PID changing: %lu -> %lu",
- (unsigned long) s->main_pid, (unsigned long) pid);
+ "Main PID changing: "PID_FMT" -> "PID_FMT,
+ s->main_pid, pid);
service_unwatch_main_pid(s);
s->main_pid_known = false;
} else
log_debug_unit(UNIT(s)->id,
- "Main PID loaded: %lu", (unsigned long) pid);
+ "Main PID loaded: "PID_FMT, pid);
r = service_set_main_pid(s, pid);
if (r < 0)
if (r < 0) {
/* FIXME: we need to do something here */
log_warning_unit(UNIT(s)->id,
- "Failed to watch PID %lu from service %s",
- (unsigned long) pid, UNIT(s)->id);
+ "Failed to watch PID "PID_FMT" from service %s",
+ pid, UNIT(s)->id);
return r;
}
return -ENOENT;
log_debug_unit(UNIT(s)->id,
- "Main PID guessed: %lu", (unsigned long) pid);
+ "Main PID guessed: "PID_FMT, pid);
r = service_set_main_pid(s, pid);
if (r < 0)
return r;
if (r < 0)
/* FIXME: we need to do something here */
log_warning_unit(UNIT(s)->id,
- "Failed to watch PID %lu from service %s",
- (unsigned long) pid, UNIT(s)->id);
- return r;
-
- return 0;
+ "Failed to watch PID "PID_FMT" from service %s",
+ pid, UNIT(s)->id);
+ return r;
}
static void service_set_state(Service *s, ServiceState state) {
ServiceState old_state;
const UnitActiveState *table;
+
assert(s);
table = s->type == SERVICE_IDLE ? state_translation_table_idle : state_translation_table;
service_unwatch_pid_file(s);
- if (state != SERVICE_START_PRE &&
- state != SERVICE_START &&
- state != SERVICE_START_POST &&
- state != SERVICE_RELOAD &&
- state != SERVICE_STOP &&
- state != SERVICE_STOP_SIGTERM &&
- state != SERVICE_STOP_SIGKILL &&
- state != SERVICE_STOP_POST &&
- state != SERVICE_FINAL_SIGTERM &&
- state != SERVICE_FINAL_SIGKILL &&
- state != SERVICE_AUTO_RESTART)
- unit_unwatch_timer(UNIT(s), &s->timer_watch);
-
- if (state != SERVICE_START &&
- state != SERVICE_START_POST &&
- state != SERVICE_RUNNING &&
- state != SERVICE_RELOAD &&
- state != SERVICE_STOP &&
- state != SERVICE_STOP_SIGTERM &&
- state != SERVICE_STOP_SIGKILL) {
+ if (!IN_SET(state,
+ SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
+ SERVICE_RELOAD,
+ SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
+ SERVICE_STOP_POST,
+ SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL,
+ SERVICE_AUTO_RESTART))
+ s->timer_event_source = sd_event_source_unref(s->timer_event_source);
+
+ if (!IN_SET(state,
+ SERVICE_START, SERVICE_START_POST,
+ SERVICE_RUNNING, SERVICE_RELOAD,
+ SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
+ SERVICE_STOP_POST,
+ SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
service_unwatch_main_pid(s);
s->main_command = NULL;
}
- if (state != SERVICE_START_PRE &&
- state != SERVICE_START &&
- state != SERVICE_START_POST &&
- state != SERVICE_RELOAD &&
- state != SERVICE_STOP &&
- state != SERVICE_STOP_SIGTERM &&
- state != SERVICE_STOP_SIGKILL &&
- state != SERVICE_STOP_POST &&
- state != SERVICE_FINAL_SIGTERM &&
- state != SERVICE_FINAL_SIGKILL) {
+ if (!IN_SET(state,
+ SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
+ SERVICE_RELOAD,
+ SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
+ SERVICE_STOP_POST,
+ SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
service_unwatch_control_pid(s);
s->control_command = NULL;
s->control_command_id = _SERVICE_EXEC_COMMAND_INVALID;
}
- if (state != SERVICE_START_PRE &&
- state != SERVICE_START &&
- state != SERVICE_START_POST &&
- state != SERVICE_RUNNING &&
- state != SERVICE_RELOAD &&
- state != SERVICE_STOP &&
- state != SERVICE_STOP_SIGTERM &&
- state != SERVICE_STOP_SIGKILL &&
- state != SERVICE_STOP_POST &&
- state != SERVICE_FINAL_SIGTERM &&
- state != SERVICE_FINAL_SIGKILL &&
+ if (IN_SET(state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART))
+ unit_unwatch_all_pids(UNIT(s));
+
+ if (!IN_SET(state,
+ SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
+ SERVICE_RUNNING, SERVICE_RELOAD,
+ SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL, SERVICE_STOP_POST,
+ SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL) &&
!(state == SERVICE_DEAD && UNIT(s)->job)) {
service_close_socket_fd(s);
service_connection_unref(s);
}
- if (state == SERVICE_STOP || state == SERVICE_STOP_SIGTERM)
+ if (!IN_SET(state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD))
service_stop_watchdog(s);
/* For the inactive states unit_notify() will trim the cgroup,
if (state == SERVICE_EXITED && UNIT(s)->manager->n_reloading <= 0)
unit_destroy_cgroup(UNIT(s));
+ /* For remain_after_exit services, let's see if we can "release" the
+ * hold on the console, since unit_notify() only does that in case of
+ * change of state */
+ if (state == SERVICE_EXITED && s->remain_after_exit &&
+ UNIT(s)->manager->n_on_console > 0) {
+ ExecContext *ec = unit_get_exec_context(UNIT(s));
+ if (ec && exec_context_may_touch_console(ec)) {
+ Manager *m = UNIT(s)->manager;
+
+ m->n_on_console --;
+ if (m->n_on_console == 0)
+ /* unset no_console_output flag, since the console is free */
+ m->no_console_output = false;
+ }
+ }
+
if (old_state != state)
- log_debug_unit(UNIT(s)->id,
- "%s changed %s -> %s", UNIT(s)->id,
- service_state_to_string(old_state),
- service_state_to_string(state));
+ log_debug_unit(UNIT(s)->id, "%s changed %s -> %s", UNIT(s)->id, service_state_to_string(old_state), service_state_to_string(state));
unit_notify(UNIT(s), table[old_state], table[state], s->reload_result == SERVICE_SUCCESS);
s->reload_result = SERVICE_SUCCESS;
if (s->deserialized_state != s->state) {
- if (s->deserialized_state == SERVICE_START_PRE ||
- s->deserialized_state == SERVICE_START ||
- s->deserialized_state == SERVICE_START_POST ||
- s->deserialized_state == SERVICE_RELOAD ||
- s->deserialized_state == SERVICE_STOP ||
- s->deserialized_state == SERVICE_STOP_SIGTERM ||
- s->deserialized_state == SERVICE_STOP_SIGKILL ||
- s->deserialized_state == SERVICE_STOP_POST ||
- s->deserialized_state == SERVICE_FINAL_SIGTERM ||
- s->deserialized_state == SERVICE_FINAL_SIGKILL ||
- s->deserialized_state == SERVICE_AUTO_RESTART) {
+ if (IN_SET(s->deserialized_state,
+ SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
+ SERVICE_RELOAD,
+ SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
+ SERVICE_STOP_POST,
+ SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
- if (s->deserialized_state == SERVICE_AUTO_RESTART || s->timeout_start_usec > 0) {
- usec_t k;
+ usec_t k;
- k = s->deserialized_state == SERVICE_AUTO_RESTART ? s->restart_usec : s->timeout_start_usec;
+ k = IN_SET(s->deserialized_state, SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST, SERVICE_RELOAD) ? s->timeout_start_usec : s->timeout_stop_usec;
- r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, k, &s->timer_watch);
+ /* For the start/stop timeouts 0 means off */
+ if (k > 0) {
+ r = service_arm_timer(s, k);
if (r < 0)
return r;
}
}
- if ((s->deserialized_state == SERVICE_START &&
- (s->type == SERVICE_FORKING ||
- s->type == SERVICE_DBUS ||
- s->type == SERVICE_ONESHOT ||
- s->type == SERVICE_NOTIFY)) ||
- s->deserialized_state == SERVICE_START_POST ||
- s->deserialized_state == SERVICE_RUNNING ||
- s->deserialized_state == SERVICE_RELOAD ||
- s->deserialized_state == SERVICE_STOP ||
- s->deserialized_state == SERVICE_STOP_SIGTERM ||
- s->deserialized_state == SERVICE_STOP_SIGKILL)
- if (s->main_pid > 0) {
- r = unit_watch_pid(UNIT(s), s->main_pid);
- if (r < 0)
- return r;
- }
+ if (s->deserialized_state == SERVICE_AUTO_RESTART) {
- if (s->deserialized_state == SERVICE_START_PRE ||
- s->deserialized_state == SERVICE_START ||
- s->deserialized_state == SERVICE_START_POST ||
- s->deserialized_state == SERVICE_RELOAD ||
- s->deserialized_state == SERVICE_STOP ||
- s->deserialized_state == SERVICE_STOP_SIGTERM ||
- s->deserialized_state == SERVICE_STOP_SIGKILL ||
- s->deserialized_state == SERVICE_STOP_POST ||
- s->deserialized_state == SERVICE_FINAL_SIGTERM ||
- s->deserialized_state == SERVICE_FINAL_SIGKILL)
- if (s->control_pid > 0) {
- r = unit_watch_pid(UNIT(s), s->control_pid);
- if (r < 0)
- return r;
- }
+ /* The restart timeouts 0 means immediately */
+ r = service_arm_timer(s, s->restart_usec);
+ if (r < 0)
+ return r;
+ }
- if (s->deserialized_state == SERVICE_START_POST ||
- s->deserialized_state == SERVICE_RUNNING)
- service_handle_watchdog(s);
+ if (pid_is_unwaited(s->main_pid) &&
+ ((s->deserialized_state == SERVICE_START && IN_SET(s->type, SERVICE_FORKING, SERVICE_DBUS, SERVICE_ONESHOT, SERVICE_NOTIFY)) ||
+ IN_SET(s->deserialized_state,
+ SERVICE_START, SERVICE_START_POST,
+ SERVICE_RUNNING, SERVICE_RELOAD,
+ SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
+ SERVICE_STOP_POST,
+ SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL))) {
+ r = unit_watch_pid(UNIT(s), s->main_pid);
+ if (r < 0)
+ return r;
+ }
+
+ if (pid_is_unwaited(s->control_pid) &&
+ IN_SET(s->deserialized_state,
+ SERVICE_START_PRE, SERVICE_START, SERVICE_START_POST,
+ SERVICE_RELOAD,
+ SERVICE_STOP, SERVICE_STOP_SIGTERM, SERVICE_STOP_SIGKILL,
+ SERVICE_STOP_POST,
+ SERVICE_FINAL_SIGTERM, SERVICE_FINAL_SIGKILL)) {
+ r = unit_watch_pid(UNIT(s), s->control_pid);
+ if (r < 0)
+ return r;
+ }
+
+ if (!IN_SET(s->deserialized_state, SERVICE_DEAD, SERVICE_FAILED, SERVICE_AUTO_RESTART))
+ unit_watch_all_pids(UNIT(s));
+
+ if (IN_SET(s->deserialized_state, SERVICE_START_POST, SERVICE_RUNNING, SERVICE_RELOAD))
+ service_start_watchdog(s);
service_set_state(s, s->deserialized_state);
}
+
return 0;
}
unit_realize_cgroup(UNIT(s));
+ r = unit_setup_exec_runtime(UNIT(s));
+ if (r < 0)
+ goto fail;
+
if (pass_fds ||
s->exec_context.std_input == EXEC_INPUT_SOCKET ||
s->exec_context.std_output == EXEC_OUTPUT_SOCKET ||
}
}
- if (timeout && s->timeout_start_usec) {
- r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
- s->timeout_start_usec, &s->timer_watch);
+ if (timeout && s->timeout_start_usec > 0) {
+ r = service_arm_timer(s, s->timeout_start_usec);
if (r < 0)
goto fail;
} else
- unit_unwatch_timer(UNIT(s), &s->timer_watch);
+ s->timer_event_source = sd_event_source_unref(s->timer_event_source);
r = unit_full_printf_strv(UNIT(s), c->argv, &argv);
if (r < 0)
goto fail;
- our_env = new0(char*, 5);
+ our_env = new0(char*, 4);
if (!our_env) {
r = -ENOMEM;
goto fail;
}
if (s->main_pid > 0)
- if (asprintf(our_env + n_env++, "MAINPID=%lu", (unsigned long) s->main_pid) < 0) {
- r = -ENOMEM;
- goto fail;
- }
-
- if (s->watchdog_usec > 0)
- if (asprintf(our_env + n_env++, "WATCHDOG_USEC=%llu", (unsigned long long) s->watchdog_usec) < 0) {
+ if (asprintf(our_env + n_env++, "MAINPID="PID_FMT, s->main_pid) < 0) {
r = -ENOMEM;
goto fail;
}
if (UNIT(s)->manager->running_as != SYSTEMD_SYSTEM)
- if (asprintf(our_env + n_env++, "MANAGERPID=%lu", (unsigned long) getpid()) < 0) {
+ if (asprintf(our_env + n_env++, "MANAGERPID="PID_FMT, getpid()) < 0) {
r = -ENOMEM;
goto fail;
}
UNIT(s)->manager->confirm_spawn,
UNIT(s)->manager->cgroup_supported,
path,
+ manager_get_runtime_prefix(UNIT(s)->manager),
UNIT(s)->id,
+ s->watchdog_usec,
s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
+ s->exec_runtime,
&pid);
if (r < 0)
goto fail;
fail:
if (timeout)
- unit_unwatch_timer(UNIT(s), &s->timer_watch);
+ s->timer_event_source = sd_event_source_unref(s->timer_event_source);
return r;
}
/* If it's an alien child let's check if it is still
* alive ... */
if (s->main_pid_alien && s->main_pid > 0)
- return kill(s->main_pid, 0) >= 0 || errno != ESRCH;
+ return pid_is_alive(s->main_pid);
/* .. otherwise assume we'll get a SIGCHLD for it,
* which we really should wait for to collect exit
return !r;
}
+static int service_execute_action(Service *s, FailureAction action, const char *reason, bool log_action_none);
+
static void service_enter_dead(Service *s, ServiceResult f, bool allow_restart) {
int r;
assert(s);
service_set_state(s, s->result != SERVICE_SUCCESS ? SERVICE_FAILED : SERVICE_DEAD);
+ if (s->result != SERVICE_SUCCESS)
+ service_execute_action(s, s->failure_action, "failed", false);
+
if (allow_restart &&
!s->forbid_restart &&
(s->restart == SERVICE_RESTART_ALWAYS ||
(s->result != SERVICE_FAILURE_EXIT_CODE ||
!set_contains(s->restart_ignore_status.code, INT_TO_PTR(s->main_exec_status.status))) &&
(s->result != SERVICE_FAILURE_SIGNAL ||
- !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))
- ) {
+ !set_contains(s->restart_ignore_status.signal, INT_TO_PTR(s->main_exec_status.status)))) {
- r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
+ r = service_arm_timer(s, s->restart_usec);
if (r < 0)
goto fail;
s->forbid_restart = false;
- /* we want fresh tmpdirs in case service is started again immediately */
- exec_context_tmp_dirs_done(&s->exec_context);
+ /* We want fresh tmpdirs in case service is started again immediately */
+ exec_runtime_destroy(s->exec_runtime);
+ s->exec_runtime = exec_runtime_unref(s->exec_runtime);
+
+ /* Also, remove the runtime directory in */
+ exec_context_destroy_runtime_directory(&s->exec_context, manager_get_runtime_prefix(UNIT(s)->manager));
/* Try to delete the pid file. At this point it will be
* out-of-date, and some software might be confused by it, so
s->result = f;
service_unwatch_control_pid(s);
+ unit_watch_all_pids(UNIT(s));
s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
if (s->control_command) {
if (r < 0)
goto fail;
-
service_set_state(s, SERVICE_STOP_POST);
} else
- service_enter_dead(s, SERVICE_SUCCESS, true);
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_SUCCESS);
return;
if (f != SERVICE_SUCCESS)
s->result = f;
+ unit_watch_all_pids(UNIT(s));
+
r = unit_kill_context(
UNIT(s),
&s->kill_context,
s->main_pid,
s->control_pid,
s->main_pid_alien);
+
if (r < 0)
goto fail;
if (r > 0) {
if (s->timeout_stop_usec > 0) {
- r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
- s->timeout_stop_usec, &s->timer_watch);
+ r = service_arm_timer(s, s->timeout_stop_usec);
if (r < 0)
goto fail;
}
service_set_state(s, state);
- } else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
+ } else if (state == SERVICE_STOP_SIGTERM)
+ service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_SUCCESS);
+ else if (state == SERVICE_STOP_SIGKILL)
service_enter_stop_post(s, SERVICE_SUCCESS);
+ else if (state == SERVICE_FINAL_SIGTERM)
+ service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_SUCCESS);
else
service_enter_dead(s, SERVICE_SUCCESS, true);
s->result = f;
service_unwatch_control_pid(s);
+ unit_watch_all_pids(UNIT(s));
s->control_command = s->exec_command[SERVICE_EXEC_STOP];
if (s->control_command) {
assert(s);
service_unwatch_control_pid(s);
-
- if (s->watchdog_usec > 0)
- service_reset_watchdog(s);
+ service_reset_watchdog(s);
s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
if (s->control_command) {
}
static void service_enter_restart(Service *s) {
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
- DBusError error;
assert(s);
- dbus_error_init(&error);
if (UNIT(s)->job && UNIT(s)->job->type == JOB_STOP) {
/* Don't restart things if we are going down anyway */
log_info_unit(UNIT(s)->id,
"Stop job pending for unit, delaying automatic restart.");
- r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->restart_usec, &s->timer_watch);
+ r = service_arm_timer(s, s->restart_usec);
if (r < 0)
goto fail;
fail:
log_warning_unit(UNIT(s)->id,
"%s failed to schedule restart job: %s",
- UNIT(s)->id, bus_error(&error, -r));
+ UNIT(s)->id, bus_error_message(&error, -r));
service_enter_dead(s, SERVICE_FAILURE_RESOURCES, false);
-
- dbus_error_free(&error);
}
static void service_enter_reload(Service *s) {
service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
}
-static int service_start_limit_test(Service *s) {
+static int service_execute_action(Service *s, FailureAction action, const char *reason, bool log_action_none) {
assert(s);
- if (ratelimit_test(&s->start_limit))
- return 0;
+ if (action == SERVICE_FAILURE_ACTION_REBOOT ||
+ action == SERVICE_FAILURE_ACTION_REBOOT_FORCE)
+ update_reboot_param_file(s->reboot_arg);
- switch (s->start_limit_action) {
+ switch (action) {
- case SERVICE_START_LIMIT_NONE:
- log_warning_unit(UNIT(s)->id,
- "%s start request repeated too quickly, refusing to start.",
- UNIT(s)->id);
+ case SERVICE_FAILURE_ACTION_NONE:
+ if (log_action_none)
+ log_warning_unit(UNIT(s)->id,
+ "%s %s, refusing to start.", UNIT(s)->id, reason);
break;
- case SERVICE_START_LIMIT_REBOOT: {
- DBusError error;
+ case SERVICE_FAILURE_ACTION_REBOOT: {
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
- dbus_error_init(&error);
-
log_warning_unit(UNIT(s)->id,
- "%s start request repeated too quickly, rebooting.", UNIT(s)->id);
+ "%s %s, rebooting.", UNIT(s)->id, reason);
r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
SPECIAL_REBOOT_TARGET, JOB_REPLACE,
true, &error, NULL);
- if (r < 0) {
+ if (r < 0)
log_error_unit(UNIT(s)->id,
- "Failed to reboot: %s.", bus_error(&error, r));
- dbus_error_free(&error);
- }
+ "Failed to reboot: %s.", bus_error_message(&error, r));
break;
}
- case SERVICE_START_LIMIT_REBOOT_FORCE:
+ case SERVICE_FAILURE_ACTION_REBOOT_FORCE:
log_warning_unit(UNIT(s)->id,
- "%s start request repeated too quickly, forcibly rebooting.", UNIT(s)->id);
+ "%s %s, forcibly rebooting.", UNIT(s)->id, reason);
UNIT(s)->manager->exit_code = MANAGER_REBOOT;
break;
- case SERVICE_START_LIMIT_REBOOT_IMMEDIATE:
+ case SERVICE_FAILURE_ACTION_REBOOT_IMMEDIATE:
log_warning_unit(UNIT(s)->id,
- "%s start request repeated too quickly, rebooting immediately.", UNIT(s)->id);
+ "%s %s, rebooting immediately.", UNIT(s)->id, reason);
sync();
+ if (s->reboot_arg) {
+ log_info("Rebooting with argument '%s'.", s->reboot_arg);
+ syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
+ LINUX_REBOOT_CMD_RESTART2, s->reboot_arg);
+ }
+
+ log_info("Rebooting.");
reboot(RB_AUTOBOOT);
break;
default:
log_error_unit(UNIT(s)->id,
- "start limit action=%i", s->start_limit_action);
- assert_not_reached("Unknown StartLimitAction.");
+ "failure action=%i", action);
+ assert_not_reached("Unknown FailureAction.");
}
return -ECANCELED;
}
+static int service_start_limit_test(Service *s) {
+ assert(s);
+
+ if (ratelimit_test(&s->start_limit))
+ return 0;
+
+ return service_execute_action(s, s->start_limit_action, "start request repeated too quickly", true);
+}
+
static int service_start(Unit *u) {
Service *s = SERVICE(u);
int r;
unit_serialize_item(u, f, "reload-result", service_result_to_string(s->reload_result));
if (s->control_pid > 0)
- unit_serialize_item_format(u, f, "control-pid", "%lu",
- (unsigned long) s->control_pid);
+ unit_serialize_item_format(u, f, "control-pid", PID_FMT,
+ s->control_pid);
if (s->main_pid_known && s->main_pid > 0)
- unit_serialize_item_format(u, f, "main-pid", "%lu", (unsigned long) s->main_pid);
+ unit_serialize_item_format(u, f, "main-pid", PID_FMT, s->main_pid);
unit_serialize_item(u, f, "main-pid-known", yes_no(s->main_pid_known));
}
if (s->main_exec_status.pid > 0) {
- unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu",
- (unsigned long) s->main_exec_status.pid);
+ unit_serialize_item_format(u, f, "main-exec-status-pid", PID_FMT,
+ s->main_exec_status.pid);
dual_timestamp_serialize(f, "main-exec-status-start",
&s->main_exec_status.start_timestamp);
dual_timestamp_serialize(f, "main-exec-status-exit",
}
}
if (dual_timestamp_is_set(&s->watchdog_timestamp))
- dual_timestamp_serialize(f, "watchdog-timestamp",
- &s->watchdog_timestamp);
-
- if (s->exec_context.tmp_dir)
- unit_serialize_item(u, f, "tmp-dir", s->exec_context.tmp_dir);
-
- if (s->exec_context.var_tmp_dir)
- unit_serialize_item(u, f, "var-tmp-dir", s->exec_context.var_tmp_dir);
+ dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
if (s->forbid_restart)
- unit_serialize_item(u, f, "forbid_restart", yes_no(s->forbid_restart));
+ unit_serialize_item(u, f, "forbid-restart", yes_no(s->forbid_restart));
return 0;
}
log_debug_unit(u->id, "Failed to parse socket-fd value %s", value);
else {
- if (s->socket_fd >= 0)
- close_nointr_nofail(s->socket_fd);
+ safe_close(s->socket_fd);
s->socket_fd = fdset_remove(fds, fd);
}
} else if (streq(key, "main-exec-status-pid")) {
dual_timestamp_deserialize(value, &s->main_exec_status.exit_timestamp);
else if (streq(key, "watchdog-timestamp"))
dual_timestamp_deserialize(value, &s->watchdog_timestamp);
- else if (streq(key, "tmp-dir")) {
- char *t;
-
- t = strdup(value);
- if (!t)
- return log_oom();
-
- s->exec_context.tmp_dir = t;
- } else if (streq(key, "var-tmp-dir")) {
- char *t;
-
- t = strdup(value);
- if (!t)
- return log_oom();
-
- s->exec_context.var_tmp_dir = t;
- } else if (streq(key, "forbid_restart")) {
+ else if (streq(key, "forbid-restart")) {
int b;
b = parse_boolean(value);
if (b < 0)
- log_debug_unit(u->id, "Failed to parse forbid_restart value %s", value);
+ log_debug_unit(u->id, "Failed to parse forbid-restart value %s", value);
else
s->forbid_restart = b;
} else
assert(s);
- return !s->got_socket_fd;
+ return (s->socket_fd < 0);
}
static int service_retry_pid_file(Service *s) {
log_debug_unit(UNIT(s)->id,
"Setting watch for %s's PID file %s",
UNIT(s)->id, s->pid_file_pathspec->path);
- r = path_spec_watch(s->pid_file_pathspec, UNIT(s));
+ r = path_spec_watch(s->pid_file_pathspec, service_dispatch_io);
if (r < 0)
goto fail;
if (!ps)
return -ENOMEM;
+ ps->unit = UNIT(s);
ps->path = strdup(s->pid_file);
if (!ps->path) {
free(ps);
return service_watch_pid_file(s);
}
-static void service_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
- Service *s = SERVICE(u);
+static int service_dispatch_io(sd_event_source *source, int fd, uint32_t events, void *userdata) {
+ PathSpec *p = userdata;
+ Service *s;
+
+ assert(p);
+
+ s = SERVICE(p->unit);
assert(s);
assert(fd >= 0);
assert(s->pid_file_pathspec);
assert(path_spec_owns_inotify_fd(s->pid_file_pathspec, fd));
- log_debug_unit(u->id, "inotify event for %s", u->id);
+ log_debug_unit(UNIT(s)->id, "inotify event for %s", UNIT(s)->id);
- if (path_spec_fd_event(s->pid_file_pathspec, events) < 0)
+ if (path_spec_fd_event(p, events) < 0)
goto fail;
if (service_retry_pid_file(s) == 0)
- return;
+ return 0;
if (service_watch_pid_file(s) < 0)
goto fail;
- return;
+ return 0;
+
fail:
service_unwatch_pid_file(s);
service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_RESOURCES);
+ return 0;
+}
+
+static void service_notify_cgroup_empty_event(Unit *u) {
+ Service *s = SERVICE(u);
+
+ assert(u);
+
+ log_debug_unit(u->id, "%s: cgroup is empty", u->id);
+
+ switch (s->state) {
+
+ /* Waiting for SIGCHLD is usually more interesting,
+ * because it includes return codes/signals. Which is
+ * why we ignore the cgroup events for most cases,
+ * except when we don't know pid which to expect the
+ * SIGCHLD for. */
+
+ case SERVICE_START:
+ case SERVICE_START_POST:
+ /* If we were hoping for the daemon to write its PID file,
+ * we can give up now. */
+ if (s->pid_file_pathspec) {
+ log_warning_unit(u->id,
+ "%s never wrote its PID file. Failing.", UNIT(s)->id);
+ service_unwatch_pid_file(s);
+ if (s->state == SERVICE_START)
+ service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
+ else
+ service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
+ }
+ break;
+
+ case SERVICE_RUNNING:
+ /* service_enter_running() will figure out what to do */
+ service_enter_running(s, SERVICE_SUCCESS);
+ break;
+
+ case SERVICE_STOP_SIGTERM:
+ case SERVICE_STOP_SIGKILL:
+
+ if (main_pid_good(s) <= 0 && !control_pid_good(s))
+ service_enter_stop_post(s, SERVICE_SUCCESS);
+
+ break;
+
+ case SERVICE_STOP_POST:
+ case SERVICE_FINAL_SIGTERM:
+ case SERVICE_FINAL_SIGKILL:
+ if (main_pid_good(s) <= 0 && !control_pid_good(s))
+ service_enter_dead(s, SERVICE_SUCCESS, true);
+
+ break;
+
+ default:
+ ;
+ }
}
static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
/* If there is still a control process, wait for that first */
break;
+ case SERVICE_STOP_POST:
+ case SERVICE_FINAL_SIGTERM:
+ case SERVICE_FINAL_SIGKILL:
+
+ if (!control_pid_good(s))
+ service_enter_dead(s, f, true);
+ break;
+
default:
assert_not_reached("Uh, main process died at wrong time.");
}
case SERVICE_STOP_POST:
case SERVICE_FINAL_SIGTERM:
case SERVICE_FINAL_SIGKILL:
- service_enter_dead(s, f, true);
+ if (main_pid_good(s) <= 0)
+ service_enter_dead(s, f, true);
break;
default:
/* Notify clients about changed exit status */
unit_add_to_dbus_queue(u);
-}
-static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
- Service *s = SERVICE(u);
+ /* We got one SIGCHLD for the service, let's watch all
+ * processes that are now running of the service, and watch
+ * that. Among the PIDs we then watch will be children
+ * reassigned to us, which hopefully allows us to identify
+ * when all children are gone */
+ unit_tidy_watch_pids(u, s->main_pid, s->control_pid);
+ unit_watch_all_pids(u);
- assert(s);
- assert(elapsed == 1);
+ /* If the PID set is empty now, then let's finish this off */
+ if (set_isempty(u->pids))
+ service_notify_cgroup_empty_event(u);
+}
- if (w == &s->watchdog_watch) {
- service_handle_watchdog(s);
- return;
- }
+static int service_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) {
+ Service *s = SERVICE(userdata);
- assert(w == &s->timer_watch);
+ assert(s);
+ assert(source == s->timer_event_source);
switch (s->state) {
case SERVICE_START_PRE:
case SERVICE_START:
- log_warning_unit(u->id,
- "%s operation timed out. Terminating.", u->id);
+ log_warning_unit(UNIT(s)->id,
+ "%s %s operation timed out. Terminating.",
+ UNIT(s)->id,
+ s->state == SERVICE_START ? "start" : "start-pre");
service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
break;
case SERVICE_START_POST:
- log_warning_unit(u->id,
- "%s operation timed out. Stopping.", u->id);
+ log_warning_unit(UNIT(s)->id,
+ "%s start-post operation timed out. Stopping.", UNIT(s)->id);
service_enter_stop(s, SERVICE_FAILURE_TIMEOUT);
break;
case SERVICE_RELOAD:
- log_warning_unit(u->id,
- "%s operation timed out. Stopping.", u->id);
+ log_warning_unit(UNIT(s)->id,
+ "%s reload operation timed out. Stopping.", UNIT(s)->id);
s->reload_result = SERVICE_FAILURE_TIMEOUT;
service_enter_running(s, SERVICE_SUCCESS);
break;
case SERVICE_STOP:
- log_warning_unit(u->id,
- "%s stopping timed out. Terminating.", u->id);
+ log_warning_unit(UNIT(s)->id,
+ "%s stopping timed out. Terminating.", UNIT(s)->id);
service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_TIMEOUT);
break;
case SERVICE_STOP_SIGTERM:
if (s->kill_context.send_sigkill) {
- log_warning_unit(u->id,
- "%s stopping timed out. Killing.", u->id);
+ log_warning_unit(UNIT(s)->id,
+ "%s stop-sigterm timed out. Killing.", UNIT(s)->id);
service_enter_signal(s, SERVICE_STOP_SIGKILL, SERVICE_FAILURE_TIMEOUT);
} else {
- log_warning_unit(u->id,
- "%s stopping timed out. Skipping SIGKILL.", u->id);
+ log_warning_unit(UNIT(s)->id,
+ "%s stop-sigterm timed out. Skipping SIGKILL.", UNIT(s)->id);
service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
}
* Must be something we cannot kill, so let's just be
* weirded out and continue */
- log_warning_unit(u->id,
- "%s still around after SIGKILL. Ignoring.", u->id);
+ log_warning_unit(UNIT(s)->id,
+ "%s still around after SIGKILL. Ignoring.", UNIT(s)->id);
service_enter_stop_post(s, SERVICE_FAILURE_TIMEOUT);
break;
case SERVICE_STOP_POST:
- log_warning_unit(u->id,
- "%s stopping timed out (2). Terminating.", u->id);
+ log_warning_unit(UNIT(s)->id,
+ "%s stop-post timed out. Terminating.", UNIT(s)->id);
service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_TIMEOUT);
break;
case SERVICE_FINAL_SIGTERM:
if (s->kill_context.send_sigkill) {
- log_warning_unit(u->id,
- "%s stopping timed out (2). Killing.", u->id);
+ log_warning_unit(UNIT(s)->id,
+ "%s stop-final-sigterm timed out. Killing.", UNIT(s)->id);
service_enter_signal(s, SERVICE_FINAL_SIGKILL, SERVICE_FAILURE_TIMEOUT);
} else {
- log_warning_unit(u->id,
- "%s stopping timed out (2). Skipping SIGKILL. Entering failed mode.",
- u->id);
+ log_warning_unit(UNIT(s)->id,
+ "%s stop-final-sigterm timed out. Skipping SIGKILL. Entering failed mode.",
+ UNIT(s)->id);
service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, false);
}
break;
case SERVICE_FINAL_SIGKILL:
- log_warning_unit(u->id,
- "%s still around after SIGKILL (2). Entering failed mode.", u->id);
+ log_warning_unit(UNIT(s)->id,
+ "%s still around after final SIGKILL. Entering failed mode.", UNIT(s)->id);
service_enter_dead(s, SERVICE_FAILURE_TIMEOUT, true);
break;
case SERVICE_AUTO_RESTART:
- log_info_unit(u->id,
- "%s holdoff time over, scheduling restart.", u->id);
+ log_info_unit(UNIT(s)->id,
+ s->restart_usec > 0 ?
+ "%s holdoff time over, scheduling restart." :
+ "%s has no holdoff time, scheduling restart.",
+ UNIT(s)->id);
service_enter_restart(s);
break;
default:
assert_not_reached("Timeout at wrong time.");
}
-}
-
-static void service_notify_cgroup_empty_event(Unit *u) {
- Service *s = SERVICE(u);
-
- assert(u);
-
- log_debug_unit(u->id, "%s: cgroup is empty", u->id);
-
- switch (s->state) {
-
- /* Waiting for SIGCHLD is usually more interesting,
- * because it includes return codes/signals. Which is
- * why we ignore the cgroup events for most cases,
- * except when we don't know pid which to expect the
- * SIGCHLD for. */
-
- case SERVICE_START:
- case SERVICE_START_POST:
- /* If we were hoping for the daemon to write its PID file,
- * we can give up now. */
- if (s->pid_file_pathspec) {
- log_warning_unit(u->id,
- "%s never wrote its PID file. Failing.", UNIT(s)->id);
- service_unwatch_pid_file(s);
- if (s->state == SERVICE_START)
- service_enter_signal(s, SERVICE_FINAL_SIGTERM, SERVICE_FAILURE_RESOURCES);
- else
- service_enter_stop(s, SERVICE_FAILURE_RESOURCES);
- }
- break;
-
- case SERVICE_RUNNING:
- /* service_enter_running() will figure out what to do */
- service_enter_running(s, SERVICE_SUCCESS);
- break;
- case SERVICE_STOP_SIGTERM:
- case SERVICE_STOP_SIGKILL:
+ return 0;
+}
- if (main_pid_good(s) <= 0 && !control_pid_good(s))
- service_enter_stop_post(s, SERVICE_SUCCESS);
+static int service_dispatch_watchdog(sd_event_source *source, usec_t usec, void *userdata) {
+ Service *s = SERVICE(userdata);
- break;
+ assert(s);
+ assert(source == s->watchdog_event_source);
- case SERVICE_FINAL_SIGTERM:
- case SERVICE_FINAL_SIGKILL:
- if (main_pid_good(s) <= 0 && !control_pid_good(s))
- service_enter_dead(s, SERVICE_SUCCESS, true);
+ log_error_unit(UNIT(s)->id, "%s watchdog timeout!", UNIT(s)->id);
+ service_enter_signal(s, SERVICE_STOP_SIGTERM, SERVICE_FAILURE_WATCHDOG);
- break;
-
- default:
- ;
- }
+ return 0;
}
static void service_notify_message(Unit *u, pid_t pid, char **tags) {
Service *s = SERVICE(u);
const char *e;
+ bool notify_dbus = false;
assert(u);
+ log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT" (%s...)",
+ u->id, pid, tags && *tags ? tags[0] : "(empty)");
+
if (s->notify_access == NOTIFY_NONE) {
log_warning_unit(u->id,
- "%s: Got notification message from PID %lu, but reception is disabled.",
- u->id, (unsigned long) pid);
+ "%s: Got notification message from PID "PID_FMT", but reception is disabled.",
+ u->id, pid);
return;
}
if (s->notify_access == NOTIFY_MAIN && pid != s->main_pid) {
- log_warning_unit(u->id,
- "%s: Got notification message from PID %lu, but reception only permitted for PID %lu",
- u->id, (unsigned long) pid, (unsigned long) s->main_pid);
+
+ if (s->main_pid != 0)
+ log_warning_unit(u->id, "%s: Got notification message from PID "PID_FMT", but reception only permitted for main PID "PID_FMT, u->id, pid, s->main_pid);
+ else
+ log_debug_unit(u->id, "%s: Got notification message from PID "PID_FMT", but reception only permitted for main PID which is currently not known", u->id, pid);
return;
}
- log_debug_unit(u->id,
- "%s: Got message", u->id);
-
/* Interpret MAINPID= */
if ((e = strv_find_prefix(tags, "MAINPID=")) &&
(s->state == SERVICE_START ||
s->state == SERVICE_RELOAD)) {
if (parse_pid(e + 8, &pid) < 0)
- log_warning_unit(u->id,
- "Failed to parse notification message %s", e);
+ log_warning_unit(u->id, "Failed to parse notification message %s", e);
else {
- log_debug_unit(u->id,
- "%s: got %s", u->id, e);
+ log_debug_unit(u->id, "%s: got %s", u->id, e);
service_set_main_pid(s, pid);
unit_watch_pid(UNIT(s), pid);
+ notify_dbus = true;
}
}
/* Interpret READY= */
- if (s->type == SERVICE_NOTIFY &&
- s->state == SERVICE_START &&
- strv_find(tags, "READY=1")) {
- log_debug_unit(u->id,
- "%s: got READY=1", u->id);
-
+ if (s->type == SERVICE_NOTIFY && s->state == SERVICE_START && strv_find(tags, "READY=1")) {
+ log_debug_unit(u->id, "%s: got READY=1", u->id);
service_enter_start_post(s);
+ notify_dbus = true;
}
/* Interpret STATUS= */
char *t;
if (e[7]) {
-
if (!utf8_is_valid(e+7)) {
- log_warning_unit(u->id,
- "Status message in notification is not UTF-8 clean.");
+ log_warning_unit(u->id, "Status message in notification is not UTF-8 clean.");
return;
}
+ log_debug_unit(u->id, "%s: got %s", u->id, e);
+
t = strdup(e+7);
if (!t) {
- log_error_unit(u->id,
- "Failed to allocate string.");
+ log_oom();
return;
}
- log_debug_unit(u->id,
- "%s: got %s", u->id, e);
+ } else
+ t = NULL;
+ if (!streq_ptr(s->status_text, t)) {
free(s->status_text);
s->status_text = t;
- } else {
- free(s->status_text);
- s->status_text = NULL;
- }
-
+ notify_dbus = true;
+ } else
+ free(t);
}
+
+ /* Interpret WATCHDOG= */
if (strv_find(tags, "WATCHDOG=1")) {
- log_debug_unit(u->id,
- "%s: got WATCHDOG=1", u->id);
- if (dual_timestamp_is_set(&s->watchdog_timestamp))
- service_reset_watchdog(s);
+ log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id);
+ service_reset_watchdog(s);
}
/* Notify clients about changed status or main pid */
- unit_add_to_dbus_queue(u);
+ if (notify_dbus)
+ unit_add_to_dbus_queue(u);
+}
+
+static int service_get_timeout(Unit *u, uint64_t *timeout) {
+ Service *s = SERVICE(u);
+ int r;
+
+ if (!s->timer_event_source)
+ return 0;
+
+ r = sd_event_source_get_time(s->timer_event_source, timeout);
+ if (r < 0)
+ return r;
+
+ return 1;
}
#ifdef HAVE_SYSV_COMPAT
d = opendir(path);
if (!d) {
if (errno != ENOENT)
- log_warning("opendir(%s) failed: %s", path, strerror(errno));
+ log_warning("opendir(%s) failed: %m", path);
continue;
}
if (access(fpath, X_OK) < 0) {
if (errno != ENOENT)
- log_warning("access() failed on %s: %s", fpath, strerror(errno));
+ log_warning("access() failed on %s: %m", fpath);
continue;
}
const char *new_owner) {
Service *s = SERVICE(u);
+ int r;
assert(s);
assert(name);
s->state == SERVICE_RUNNING ||
s->state == SERVICE_RELOAD)) {
- /* Try to acquire PID from bus service */
- log_debug_unit(u->id,
- "Trying to acquire PID from D-Bus name...");
-
- bus_query_pid(u->manager, name);
- }
-}
-
-static void service_bus_query_pid_done(
- Unit *u,
- const char *name,
- pid_t pid) {
-
- Service *s = SERVICE(u);
+ _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
+ pid_t pid;
- assert(s);
- assert(name);
+ /* Try to acquire PID from bus service */
- log_debug_unit(u->id,
- "%s's D-Bus name %s is now owned by process %u",
- u->id, name, (unsigned) pid);
+ r = sd_bus_get_owner(u->manager->api_bus, name, SD_BUS_CREDS_PID, &creds);
+ if (r >= 0)
+ r = sd_bus_creds_get_pid(creds, &pid);
+ if (r >= 0) {
+ log_debug_unit(u->id, "%s's D-Bus name %s is now owned by process %u", u->id, name, (unsigned) pid);
- if (s->main_pid <= 0 &&
- (s->state == SERVICE_START ||
- s->state == SERVICE_START_POST ||
- s->state == SERVICE_RUNNING ||
- s->state == SERVICE_RELOAD)){
- service_set_main_pid(s, pid);
- unit_watch_pid(UNIT(s), pid);
+ service_set_main_pid(s, pid);
+ unit_watch_pid(UNIT(s), pid);
+ }
}
}
int service_set_socket_fd(Service *s, int fd, Socket *sock) {
+ _cleanup_free_ char *peer = NULL;
+ int r;
assert(s);
assert(fd >= 0);
if (s->state != SERVICE_DEAD)
return -EAGAIN;
+ if (getpeername_pretty(fd, &peer) >= 0) {
+
+ if (UNIT(s)->description) {
+ _cleanup_free_ char *a;
+
+ a = strjoin(UNIT(s)->description, " (", peer, ")", NULL);
+ if (!a)
+ return -ENOMEM;
+
+ r = unit_set_description(UNIT(s), a);
+ } else
+ r = unit_set_description(UNIT(s), peer);
+
+ if (r < 0)
+ return r;
+ }
+
s->socket_fd = fd;
- s->got_socket_fd = true;
unit_ref_set(&s->accept_socket, UNIT(sock));
RATELIMIT_RESET(s->start_limit);
}
-static int service_kill(Unit *u, KillWho who, int signo, DBusError *error) {
+static int service_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) {
Service *s = SERVICE(u);
return unit_kill_common(u, who, signo, s->main_pid, s->control_pid, error);
DEFINE_STRING_TABLE_LOOKUP(service_result, ServiceResult);
-static const char* const start_limit_action_table[_SERVICE_START_LIMIT_MAX] = {
- [SERVICE_START_LIMIT_NONE] = "none",
- [SERVICE_START_LIMIT_REBOOT] = "reboot",
- [SERVICE_START_LIMIT_REBOOT_FORCE] = "reboot-force",
- [SERVICE_START_LIMIT_REBOOT_IMMEDIATE] = "reboot-immediate"
+static const char* const failure_action_table[_SERVICE_FAILURE_ACTION_MAX] = {
+ [SERVICE_FAILURE_ACTION_NONE] = "none",
+ [SERVICE_FAILURE_ACTION_REBOOT] = "reboot",
+ [SERVICE_FAILURE_ACTION_REBOOT_FORCE] = "reboot-force",
+ [SERVICE_FAILURE_ACTION_REBOOT_IMMEDIATE] = "reboot-immediate"
};
-DEFINE_STRING_TABLE_LOOKUP(start_limit_action, StartLimitAction);
+DEFINE_STRING_TABLE_LOOKUP(failure_action, FailureAction);
const UnitVTable service_vtable = {
.object_size = sizeof(Service),
+ .exec_context_offset = offsetof(Service, exec_context),
+ .cgroup_context_offset = offsetof(Service, cgroup_context),
+ .kill_context_offset = offsetof(Service, kill_context),
+ .exec_runtime_offset = offsetof(Service, exec_runtime),
.sections =
"Unit\0"
"Service\0"
"Install\0",
-
.private_section = "Service",
- .exec_context_offset = offsetof(Service, exec_context),
- .cgroup_context_offset = offsetof(Service, cgroup_context),
.init = service_init,
.done = service_done,
.check_snapshot = service_check_snapshot,
.sigchld_event = service_sigchld_event,
- .timer_event = service_timer_event,
- .fd_event = service_fd_event,
.reset_failed = service_reset_failed,
.notify_message = service_notify_message,
.bus_name_owner_change = service_bus_name_owner_change,
- .bus_query_pid_done = service_bus_query_pid_done,
.bus_interface = "org.freedesktop.systemd1.Service",
- .bus_message_handler = bus_service_message_handler,
- .bus_invalidating_properties = bus_service_invalidating_properties,
+ .bus_vtable = bus_service_vtable,
.bus_set_property = bus_service_set_property,
.bus_commit_properties = bus_service_commit_properties,
- .can_transient = true,
+ .get_timeout = service_get_timeout,
#ifdef HAVE_SYSV_COMPAT
.enumerate = service_enumerate,
#endif
+
+ .can_transient = true,
+
.status_message_formats = {
.starting_stopping = {
[0] = "Starting %s...",
~ianmdlvl / elogind.git / blobdiff