summaryrefslogtreecommitdiff
path: root/src/service.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/service.c')
-rw-r--r--src/service.c120
1 files changed, 74 insertions, 46 deletions
diff --git a/src/service.c b/src/service.c
index a38c88076e..fe91b9241e 100644
--- a/src/service.c
+++ b/src/service.c
@@ -125,6 +125,35 @@ static void service_unwatch_main_pid(Service *s) {
s->main_pid = 0;
}
+static int service_set_main_pid(Service *s, pid_t pid) {
+ assert(s);
+
+ if (pid <= 1)
+ return -EINVAL;
+
+ if (pid == getpid())
+ return -EINVAL;
+
+ s->main_pid = pid;
+ s->main_pid_known = true;
+
+ return 0;
+}
+
+static int service_set_control_pid(Service *s, pid_t pid) {
+ assert(s);
+
+ if (pid <= 1)
+ return -EINVAL;
+
+ if (pid == getpid())
+ return -EINVAL;
+
+ s->control_pid = pid;
+
+ return 0;
+}
+
static void service_close_socket_fd(Service *s) {
assert(s);
@@ -919,8 +948,8 @@ static void service_dump(Unit *u, FILE *f, const char *prefix) {
static int service_load_pid_file(Service *s) {
char *k;
- unsigned long p;
int r;
+ pid_t pid;
assert(s);
@@ -935,29 +964,24 @@ static int service_load_pid_file(Service *s) {
if ((r = read_one_line_file(s->pid_file, &k)) < 0)
return r;
- if ((r = safe_atolu(k, &p)) < 0) {
- free(k);
- return r;
- }
-
- if ((unsigned long) (pid_t) p != p)
- return -ERANGE;
+ r = parse_pid(k, &pid);
+ free(k);
- if (p <= 1)
- return -ERANGE;
+ if (r < 0)
+ return r;
- if (kill((pid_t) p, 0) < 0 && errno != EPERM) {
- log_warning("PID %llu read from file %s does not exist. Your service or init script might be broken.",
- (unsigned long long) p, s->pid_file);
+ if (kill(pid, 0) < 0 && errno != EPERM) {
+ log_warning("PID %lu read from file %s does not exist. Your service or init script might be broken.",
+ (unsigned long) pid, s->pid_file);
return -ESRCH;
}
- if ((r = unit_watch_pid(UNIT(s), (pid_t) p)) < 0)
- /* FIXME: we need to do something here */
+ if ((r = service_set_main_pid(s, pid)) < 0)
return r;
- s->main_pid = (pid_t) p;
- s->main_pid_known = true;
+ if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
+ /* FIXME: we need to do something here */
+ return r;
return 0;
}
@@ -1460,6 +1484,8 @@ fail:
static void service_enter_stop(Service *s, bool success) {
int r;
+ pid_t pid;
+
assert(s);
if (!success)
@@ -1475,9 +1501,10 @@ static void service_enter_stop(Service *s, bool success) {
false,
!s->permissions_start_only,
!s->root_directory_start_only,
- &s->control_pid)) < 0)
+ &pid)) < 0)
goto fail;
+ service_set_control_pid(s, pid);
service_set_state(s, SERVICE_STOP);
} else
service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
@@ -1507,6 +1534,7 @@ static void service_enter_running(Service *s, bool success) {
static void service_enter_start_post(Service *s) {
int r;
+ pid_t pid;
assert(s);
service_unwatch_control_pid(s);
@@ -1519,10 +1547,10 @@ static void service_enter_start_post(Service *s) {
false,
!s->permissions_start_only,
!s->root_directory_start_only,
- &s->control_pid)) < 0)
+ &pid)) < 0)
goto fail;
-
+ service_set_control_pid(s, pid);
service_set_state(s, SERVICE_START_POST);
} else
service_enter_running(s, true);
@@ -1561,9 +1589,7 @@ static void service_enter_start(Service *s) {
/* For simple services we immediately start
* the START_POST binaries. */
- s->main_pid = pid;
- s->main_pid_known = true;
-
+ service_set_main_pid(s, pid);
service_enter_start_post(s);
} else if (s->type == SERVICE_FORKING) {
@@ -1571,10 +1597,10 @@ static void service_enter_start(Service *s) {
/* For forking services we wait until the start
* process exited. */
- s->control_pid = pid;
-
s->control_command_id = SERVICE_EXEC_START;
s->control_command = s->exec_command[SERVICE_EXEC_START];
+
+ service_set_control_pid(s, pid);
service_set_state(s, SERVICE_START);
} else if (s->type == SERVICE_FINISH ||
@@ -1588,9 +1614,7 @@ static void service_enter_start(Service *s) {
* but wait for the bus name to appear on the
* bus. Notify services are similar. */
- s->main_pid = pid;
- s->main_pid_known = true;
-
+ service_set_main_pid(s, pid);
service_set_state(s, SERVICE_START);
} else
assert_not_reached("Unknown service type");
@@ -1604,6 +1628,7 @@ fail:
static void service_enter_start_pre(Service *s) {
int r;
+ pid_t pid;
assert(s);
@@ -1617,9 +1642,10 @@ static void service_enter_start_pre(Service *s) {
false,
!s->permissions_start_only,
!s->root_directory_start_only,
- &s->control_pid)) < 0)
+ &pid)) < 0)
goto fail;
+ service_set_control_pid(s, pid);
service_set_state(s, SERVICE_START_PRE);
} else
service_enter_start(s);
@@ -1651,6 +1677,7 @@ fail:
static void service_enter_reload(Service *s) {
int r;
+ pid_t pid;
assert(s);
@@ -1664,9 +1691,10 @@ static void service_enter_reload(Service *s) {
false,
!s->permissions_start_only,
!s->root_directory_start_only,
- &s->control_pid)) < 0)
+ &pid)) < 0)
goto fail;
+ service_set_control_pid(s, pid);
service_set_state(s, SERVICE_RELOAD);
} else
service_enter_running(s, true);
@@ -1680,6 +1708,7 @@ fail:
static void service_run_next(Service *s, bool success) {
int r;
+ pid_t pid;
assert(s);
assert(s->control_command);
@@ -1698,9 +1727,10 @@ static void service_run_next(Service *s, bool success) {
false,
!s->permissions_start_only,
!s->root_directory_start_only,
- &s->control_pid)) < 0)
+ &pid)) < 0)
goto fail;
+ service_set_control_pid(s, pid);
return;
fail:
@@ -1819,10 +1849,10 @@ static int service_serialize(Unit *u, FILE *f, FDSet *fds) {
unit_serialize_item(u, f, "failure", yes_no(s->failure));
if (s->control_pid > 0)
- unit_serialize_item_format(u, f, "control-pid", "%u", (unsigned) (s->control_pid));
+ unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
- if (s->main_pid > 0)
- unit_serialize_item_format(u, f, "main-pid", "%u", (unsigned) (s->main_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(u, f, "main-pid-known", yes_no(s->main_pid_known));
@@ -1868,19 +1898,19 @@ static int service_deserialize_item(Unit *u, const char *key, const char *value,
else
s->failure = b || s->failure;
} else if (streq(key, "control-pid")) {
- unsigned pid;
+ pid_t pid;
- if ((r = safe_atou(value, &pid)) < 0 || pid <= 0)
+ if ((r = parse_pid(value, &pid)) < 0)
log_debug("Failed to parse control-pid value %s", value);
else
- s->control_pid = (pid_t) pid;
+ service_set_control_pid(s, pid);
} else if (streq(key, "main-pid")) {
- unsigned pid;
+ pid_t pid;
- if ((r = safe_atou(value, &pid)) < 0 || pid <= 0)
+ if ((r = parse_pid(value, &pid)) < 0)
log_debug("Failed to parse main-pid value %s", value);
else
- s->main_pid = (pid_t) pid;
+ service_set_main_pid(s, (pid_t) pid);
} else if (streq(key, "main-pid-known")) {
int b;
@@ -2219,15 +2249,13 @@ static void service_notify_message(Unit *u, char **tags) {
s->state == SERVICE_START_POST ||
s->state == SERVICE_RUNNING ||
s->state == SERVICE_RELOAD)) {
- unsigned long pid;
+ pid_t pid;
- if (safe_atolu(e + 8, &pid) < 0 ||
- (unsigned long) (pid_t) pid != pid ||
- pid <= 1)
+ if (parse_pid(e + 8, &pid) < 0)
log_warning("Failed to parse %s", e);
else {
log_debug("%s: got %s", u->meta.id, e);
- s->main_pid = (pid_t) pid;
+ service_set_main_pid(s, pid);
}
}
@@ -2460,7 +2488,7 @@ static void service_bus_query_pid_done(
s->state == SERVICE_START_POST ||
s->state == SERVICE_RUNNING ||
s->state == SERVICE_RELOAD))
- s->main_pid = pid;
+ service_set_main_pid(s, pid);
}
int service_set_socket_fd(Service *s, int fd) {
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-10 22:28:50 +0000