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Diffstat (limited to 'src/core/service.c')
-rw-r--r--src/core/service.c238
1 files changed, 145 insertions, 93 deletions
diff --git a/src/core/service.c b/src/core/service.c
index c510736b76..3f8aabcf45 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -1100,7 +1100,8 @@ static int fsck_fix_order(Service *s) {
else
continue;
- if ((r = unit_add_dependency(UNIT(s), d, UNIT(t), true)) < 0)
+ r = unit_add_dependency(UNIT(s), d, UNIT(t), true);
+ if (r < 0)
return r;
}
@@ -1155,18 +1156,22 @@ static int service_add_default_dependencies(Service *s) {
/* First, pull in base system */
if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) {
-
- if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
+ 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) {
-
- if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
+ r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES,
+ SPECIAL_SOCKETS_TARGET, NULL, true);
+ if (r < 0)
return r;
}
/* Second, activate normal shutdown */
- return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
+ r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS,
+ SPECIAL_SHUTDOWN_TARGET, NULL, true);
+ return r;
}
static void service_fix_output(Service *s) {
@@ -1224,18 +1229,22 @@ static int service_load(Unit *u) {
service_fix_output(s);
- if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
+ r = unit_add_exec_dependencies(u, &s->exec_context);
+ if (r < 0)
return r;
- if ((r = unit_add_default_cgroups(u)) < 0)
+ r = unit_add_default_cgroups(u);
+ if (r < 0)
return r;
#ifdef HAVE_SYSV_COMPAT
- if ((r = sysv_fix_order(s)) < 0)
+ r = sysv_fix_order(s);
+ if (r < 0)
return r;
#endif
- if ((r = fsck_fix_order(s)) < 0)
+ r = fsck_fix_order(s);
+ if (r < 0)
return r;
if (s->bus_name)
@@ -1248,13 +1257,18 @@ static int service_load(Unit *u) {
if (s->watchdog_usec > 0 && s->notify_access == NOTIFY_NONE)
s->notify_access = NOTIFY_MAIN;
- if (s->type == SERVICE_DBUS || s->bus_name)
- if ((r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_DBUS_SOCKET, NULL, true)) < 0)
+ 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 (r < 0)
return r;
+ }
- if (UNIT(s)->default_dependencies)
- if ((r = service_add_default_dependencies(s)) < 0)
+ if (UNIT(s)->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)
@@ -1269,7 +1283,7 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) {
ServiceExecCommand c;
Service *s = SERVICE(u);
const char *prefix2;
- char *p2;
+ char _cleanup_free_ *p2 = NULL;
assert(s);
@@ -1364,12 +1378,10 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) {
if (s->status_text)
fprintf(f, "%sStatus Text: %s\n",
prefix, s->status_text);
-
- free(p2);
}
static int service_load_pid_file(Service *s, bool may_warn) {
- char *k;
+ char _cleanup_free_ *k = NULL;
int r;
pid_t pid;
@@ -1378,7 +1390,8 @@ static int service_load_pid_file(Service *s, bool may_warn) {
if (!s->pid_file)
return -ENOENT;
- if ((r = read_one_line_file(s->pid_file, &k)) < 0) {
+ r = read_one_line_file(s->pid_file, &k);
+ if (r < 0) {
if (may_warn)
log_info_unit(UNIT(s)->id,
"PID file %s not readable (yet?) after %s.",
@@ -1387,8 +1400,6 @@ static int service_load_pid_file(Service *s, bool may_warn) {
}
r = parse_pid(k, &pid);
- free(k);
-
if (r < 0)
return r;
@@ -1413,10 +1424,12 @@ static int service_load_pid_file(Service *s, bool may_warn) {
log_debug_unit(UNIT(s)->id,
"Main PID loaded: %lu", (unsigned long) pid);
- if ((r = service_set_main_pid(s, pid)) < 0)
+ r = service_set_main_pid(s, pid);
+ if (r < 0)
return r;
- if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
+ r = unit_watch_pid(UNIT(s), pid);
+ if (r < 0)
/* FIXME: we need to do something here */
return r;
@@ -1439,15 +1452,18 @@ static int service_search_main_pid(Service *s) {
assert(s->main_pid <= 0);
- if ((pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings)) <= 0)
+ pid = cgroup_bonding_search_main_pid_list(UNIT(s)->cgroup_bondings);
+ if (pid <= 0)
return -ENOENT;
log_debug_unit(UNIT(s)->id,
"Main PID guessed: %lu", (unsigned long) pid);
- if ((r = service_set_main_pid(s, pid)) < 0)
+ r = service_set_main_pid(s, pid);
+ if (r < 0)
return r;
- if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
+ r = unit_watch_pid(UNIT(s), pid);
+ if (r < 0)
/* FIXME: we need to do something here */
return r;
@@ -1612,9 +1628,11 @@ static int service_coldplug(Unit *u) {
s->deserialized_state == SERVICE_STOP ||
s->deserialized_state == SERVICE_STOP_SIGTERM ||
s->deserialized_state == SERVICE_STOP_SIGKILL)
- if (s->main_pid > 0)
- if ((r = unit_watch_pid(UNIT(s), s->main_pid)) < 0)
+ if (s->main_pid > 0) {
+ r = unit_watch_pid(UNIT(s), s->main_pid);
+ if (r < 0)
return r;
+ }
if (s->deserialized_state == SERVICE_START_PRE ||
s->deserialized_state == SERVICE_START ||
@@ -1626,9 +1644,11 @@ static int service_coldplug(Unit *u) {
s->deserialized_state == SERVICE_STOP_POST ||
s->deserialized_state == SERVICE_FINAL_SIGTERM ||
s->deserialized_state == SERVICE_FINAL_SIGKILL)
- if (s->control_pid > 0)
- if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
+ if (s->control_pid > 0) {
+ r = unit_watch_pid(UNIT(s), s->control_pid);
+ if (r < 0)
return r;
+ }
if (s->deserialized_state == SERVICE_START_POST ||
s->deserialized_state == SERVICE_RUNNING)
@@ -1663,7 +1683,8 @@ static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
sock = SOCKET(u);
- if ((r = socket_collect_fds(sock, &cfds, &cn_fds)) < 0)
+ r = socket_collect_fds(sock, &cfds, &cn_fds);
+ if (r < 0)
goto fail;
if (!cfds)
@@ -1675,7 +1696,8 @@ static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
} else {
int *t;
- if (!(t = new(int, rn_fds+cn_fds))) {
+ t = new(int, rn_fds+cn_fds);
+ if (!t) {
free(cfds);
r = -ENOMEM;
goto fail;
@@ -1716,9 +1738,11 @@ static int service_spawn(
pid_t pid;
int r;
- int *fds = NULL, *fdsbuf = NULL;
+ int *fds = NULL;
+ int _cleanup_free_ *fdsbuf = NULL;
unsigned n_fds = 0, n_env = 0;
- char **argv = NULL, **final_env = NULL, **our_env = NULL;
+ char _cleanup_strv_free_
+ **argv = NULL, **final_env = NULL, **our_env = NULL;
assert(s);
assert(c);
@@ -1733,7 +1757,8 @@ static int service_spawn(
fds = &s->socket_fd;
n_fds = 1;
} else {
- if ((r = service_collect_fds(s, &fdsbuf, &n_fds)) < 0)
+ r = service_collect_fds(s, &fdsbuf, &n_fds);
+ if (r < 0)
goto fail;
fds = fdsbuf;
@@ -1741,13 +1766,15 @@ static int service_spawn(
}
if (timeout && s->timeout_start_usec) {
- r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->timeout_start_usec, &s->timer_watch);
+ r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
+ s->timeout_start_usec, &s->timer_watch);
if (r < 0)
goto fail;
} else
unit_unwatch_timer(UNIT(s), &s->timer_watch);
- if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
+ argv = unit_full_printf_strv(UNIT(s), c->argv);
+ if (!argv) {
r = -ENOMEM;
goto fail;
}
@@ -1803,29 +1830,19 @@ static int service_spawn(
UNIT(s)->id,
s->type == SERVICE_IDLE ? UNIT(s)->manager->idle_pipe : NULL,
&pid);
-
if (r < 0)
goto fail;
- if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
+ r = unit_watch_pid(UNIT(s), pid);
+ if (r < 0)
/* FIXME: we need to do something here */
goto fail;
- free(fdsbuf);
- strv_free(argv);
- strv_free(our_env);
- strv_free(final_env);
-
*_pid = pid;
return 0;
fail:
- free(fdsbuf);
- strv_free(argv);
- strv_free(our_env);
- strv_free(final_env);
-
if (timeout)
unit_unwatch_timer(UNIT(s), &s->timer_watch);
@@ -1868,7 +1885,8 @@ static int cgroup_good(Service *s) {
assert(s);
- if ((r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings)) < 0)
+ r = cgroup_bonding_is_empty_list(UNIT(s)->cgroup_bondings);
+ if (r < 0)
return r;
return !r;
@@ -1925,7 +1943,8 @@ static void service_enter_stop_post(Service *s, ServiceResult f) {
service_unwatch_control_pid(s);
- if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST])) {
+ s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST];
+ if (s->control_command) {
s->control_command_id = SERVICE_EXEC_STOP_POST;
r = service_spawn(s,
@@ -1975,7 +1994,8 @@ static void service_enter_signal(Service *s, ServiceState state, ServiceResult f
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 = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true,
+ s->timeout_stop_usec, &s->timer_watch);
if (r < 0)
goto fail;
}
@@ -2008,7 +2028,8 @@ static void service_enter_stop(Service *s, ServiceResult f) {
service_unwatch_control_pid(s);
- if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP])) {
+ s->control_command = s->exec_command[SERVICE_EXEC_STOP];
+ if (s->control_command) {
s->control_command_id = SERVICE_EXEC_STOP;
r = service_spawn(s,
@@ -2064,7 +2085,8 @@ static void service_enter_start_post(Service *s) {
if (s->watchdog_usec > 0)
service_reset_watchdog(s);
- if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST])) {
+ s->control_command = s->exec_command[SERVICE_EXEC_START_POST];
+ if (s->control_command) {
s->control_command_id = SERVICE_EXEC_START_POST;
r = service_spawn(s,
@@ -2126,7 +2148,8 @@ static void service_enter_start(Service *s) {
r = service_spawn(s,
c,
- s->type == SERVICE_FORKING || s->type == SERVICE_DBUS || s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
+ s->type == SERVICE_FORKING || s->type == SERVICE_DBUS ||
+ s->type == SERVICE_NOTIFY || s->type == SERVICE_ONESHOT,
true,
true,
true,
@@ -2183,11 +2206,13 @@ static void service_enter_start_pre(Service *s) {
service_unwatch_control_pid(s);
- if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE])) {
+ s->control_command = s->exec_command[SERVICE_EXEC_START_PRE];
+ if (s->control_command) {
/* Before we start anything, let's clear up what might
* be left from previous runs. */
- cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
+ cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
+ true,true, NULL, "control");
s->control_command_id = SERVICE_EXEC_START_PRE;
@@ -2267,7 +2292,8 @@ static void service_enter_reload(Service *s) {
service_unwatch_control_pid(s);
- if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD])) {
+ s->control_command = s->exec_command[SERVICE_EXEC_RELOAD];
+ if (s->control_command) {
s->control_command_id = SERVICE_EXEC_RELOAD;
r = service_spawn(s,
@@ -2401,7 +2427,9 @@ static int service_start_limit_test(Service *s) {
log_warning_unit(UNIT(s)->id,
"%s start request repeated too quickly, rebooting.", UNIT(s)->id);
- r = manager_add_job_by_name(UNIT(s)->manager, JOB_START, SPECIAL_REBOOT_TARGET, JOB_REPLACE, true, &error, NULL);
+ r = manager_add_job_by_name(UNIT(s)->manager, JOB_START,
+ SPECIAL_REBOOT_TARGET, JOB_REPLACE,
+ true, &error, NULL);
if (r < 0) {
log_error_unit(UNIT(s)->id,
"Failed to reboot: %s.", bus_error(&error, r));
@@ -2555,7 +2583,8 @@ static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
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", "%lu",
+ (unsigned long) 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);
@@ -2569,7 +2598,8 @@ static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
* multiple commands attached here, we will start from the
* first one again */
if (s->control_command_id >= 0)
- unit_serialize_item(u, f, "control-command", service_exec_command_to_string(s->control_command_id));
+ unit_serialize_item(u, f, "control-command",
+ service_exec_command_to_string(s->control_command_id));
if (s->socket_fd >= 0) {
int copy;
@@ -2581,17 +2611,23 @@ static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
}
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);
- dual_timestamp_serialize(f, "main-exec-status-start", &s->main_exec_status.start_timestamp);
- dual_timestamp_serialize(f, "main-exec-status-exit", &s->main_exec_status.exit_timestamp);
+ unit_serialize_item_format(u, f, "main-exec-status-pid", "%lu",
+ (unsigned long) 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",
+ &s->main_exec_status.exit_timestamp);
if (dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
- unit_serialize_item_format(u, f, "main-exec-status-code", "%i", s->main_exec_status.code);
- unit_serialize_item_format(u, f, "main-exec-status-status", "%i", s->main_exec_status.status);
+ unit_serialize_item_format(u, f, "main-exec-status-code", "%i",
+ s->main_exec_status.code);
+ unit_serialize_item_format(u, f, "main-exec-status-status", "%i",
+ s->main_exec_status.status);
}
}
if (dual_timestamp_is_set(&s->watchdog_timestamp))
- dual_timestamp_serialize(f, "watchdog-timestamp", &s->watchdog_timestamp);
+ dual_timestamp_serialize(f, "watchdog-timestamp",
+ &s->watchdog_timestamp);
return 0;
}
@@ -2607,7 +2643,8 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
if (streq(key, "state")) {
ServiceState state;
- if ((state = service_state_from_string(value)) < 0)
+ state = service_state_from_string(value);
+ if (state < 0)
log_debug_unit(u->id, "Failed to parse state value %s", value);
else
s->deserialized_state = state;
@@ -2646,14 +2683,18 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
} else if (streq(key, "main-pid-known")) {
int b;
- if ((b = parse_boolean(value)) < 0)
+ b = parse_boolean(value);
+ if (b < 0)
log_debug_unit(u->id, "Failed to parse main-pid-known value %s", value);
else
s->main_pid_known = b;
} else if (streq(key, "status-text")) {
char *t;
- if ((t = strdup(value))) {
+ t = strdup(value);
+ if (!t)
+ log_oom();
+ else {
free(s->status_text);
s->status_text = t;
}
@@ -2661,7 +2702,8 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
} else if (streq(key, "control-command")) {
ServiceExecCommand id;
- if ((id = service_exec_command_from_string(value)) < 0)
+ id = service_exec_command_from_string(value);
+ if (id < 0)
log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
else {
s->control_command_id = id;
@@ -2973,7 +3015,8 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
s->control_pid = 0;
if (s->control_command) {
- exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
+ exec_status_exit(&s->control_command->exec_status,
+ &s->exec_context, pid, code, status);
if (s->control_command->ignore)
f = SERVICE_SUCCESS;
@@ -2989,7 +3032,8 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
/* Immediately get rid of the cgroup, so that the
* kernel doesn't delay the cgroup empty messages for
* the service cgroup any longer than necessary */
- cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL, true, true, NULL, "control");
+ cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, SIGKILL,
+ true, true, NULL, "control");
if (s->control_command &&
s->control_command->command_next &&
@@ -3371,9 +3415,10 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) {
static int service_enumerate(Manager *m) {
char **p;
unsigned i;
- DIR *d = NULL;
- char *path = NULL, *fpath = NULL, *name = NULL;
- Set *runlevel_services[ELEMENTSOF(rcnd_table)], *shutdown_services = NULL;
+ DIR _cleanup_closedir_ *d = NULL;
+ char _cleanup_free_ *path = NULL, *fpath = NULL, *name = NULL;
+ Set *runlevel_services[ELEMENTSOF(rcnd_table)];
+ Set _cleanup_set_free_ *shutdown_services = NULL;
Unit *service;
Iterator j;
int r;
@@ -3399,9 +3444,10 @@ static int service_enumerate(Manager *m) {
if (d)
closedir(d);
- if (!(d = opendir(path))) {
+ d = opendir(path);
+ if (!d) {
if (errno != ENOENT)
- log_warning("opendir() failed on %s: %s", path, strerror(errno));
+ log_warning("opendir(%s) failed: %s", path, strerror(errno));
continue;
}
@@ -3440,8 +3486,9 @@ static int service_enumerate(Manager *m) {
}
free(name);
- if (!(name = sysv_translate_name(de->d_name + 3))) {
- r = -ENOMEM;
+ name = sysv_translate_name(de->d_name + 3);
+ if (!name) {
+ r = log_oom();
goto finish;
}
@@ -3460,19 +3507,25 @@ static int service_enumerate(Manager *m) {
SERVICE(service)->sysv_enabled = true;
}
- if ((r = set_ensure_allocated(&runlevel_services[i], trivial_hash_func, trivial_compare_func)) < 0)
+ r = set_ensure_allocated(&runlevel_services[i],
+ trivial_hash_func, trivial_compare_func);
+ if (r < 0)
goto finish;
- if ((r = set_put(runlevel_services[i], service)) < 0)
+ r = set_put(runlevel_services[i], service);
+ if (r < 0)
goto finish;
} else if (de->d_name[0] == 'K' &&
(rcnd_table[i].type == RUNLEVEL_DOWN)) {
- if ((r = set_ensure_allocated(&shutdown_services, trivial_hash_func, trivial_compare_func)) < 0)
+ r = set_ensure_allocated(&shutdown_services,
+ trivial_hash_func, trivial_compare_func);
+ if (r < 0)
goto finish;
- if ((r = set_put(shutdown_services, service)) < 0)
+ r = set_put(shutdown_services, service);
+ if (r < 0)
goto finish;
}
}
@@ -3493,7 +3546,10 @@ static int service_enumerate(Manager *m) {
if (service->fragment_path)
continue;
- if ((r = unit_add_two_dependencies_by_name_inverse(service, UNIT_AFTER, UNIT_WANTS, rcnd_table[i].target, NULL, true)) < 0)
+ r = unit_add_two_dependencies_by_name_inverse(
+ service, UNIT_AFTER, UNIT_WANTS,
+ rcnd_table[i].target, NULL, true);
+ if (r < 0)
goto finish;
}
@@ -3508,23 +3564,19 @@ static int service_enumerate(Manager *m) {
if (service->fragment_path)
continue;
- if ((r = unit_add_two_dependencies_by_name(service, UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true)) < 0)
+ r = unit_add_two_dependencies_by_name(
+ service, UNIT_BEFORE, UNIT_CONFLICTS,
+ SPECIAL_SHUTDOWN_TARGET, NULL, true);
+ if (r < 0)
goto finish;
}
r = 0;
finish:
- free(path);
- free(fpath);
- free(name);
for (i = 0; i < ELEMENTSOF(rcnd_table); i++)
set_free(runlevel_services[i]);
- set_free(shutdown_services);
-
- if (d)
- closedir(d);
return r;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-23 00:44:35 +0000