#include "load-dropin.h"
#include "log.h"
#include "strv.h"
+#include "unit-name.h"
#define COMMENTS "#;\n"
#define NEWLINES "\n\r"
s->main_pid = 0;
}
+static void service_close_socket_fd(Service *s) {
+ assert(s);
+
+ if (s->socket_fd < 0)
+ return;
+
+ close_nointr_nofail(s->socket_fd);
+ s->socket_fd = -1;
+}
+
static void service_done(Unit *u) {
Service *s = SERVICE(u);
service_unwatch_main_pid(s);
service_unwatch_control_pid(s);
+ if (s->bus_name) {
+ unit_unwatch_bus_name(UNIT(u), s->bus_name);
+ free(s->bus_name);
+ s->bus_name = NULL;
+ }
+
+ service_close_socket_fd(s);
+
unit_unwatch_timer(u, &s->timer_watch);
}
s->sysv_start_priority = a*10 + b;
- log_debug("Determined priority %i from link farm for %s", s->sysv_start_priority, unit_id(UNIT(s)));
+ log_debug("Determined priority %i from link farm for %s", s->sysv_start_priority, UNIT(s)->meta.id);
closedir(d);
return 0;
if (unit_name_to_type(m) == UNIT_SERVICE)
r = unit_add_name(u, m);
else {
- if ((r = unit_add_dependency_by_name_inverse(u, UNIT_REQUIRES, m)) >= 0)
- r = unit_add_dependency_by_name(u, UNIT_BEFORE, m);
+ if ((r = unit_add_dependency_by_name_inverse(u, UNIT_REQUIRES, m, NULL)) >= 0)
+ r = unit_add_dependency_by_name(u, UNIT_BEFORE, m, NULL);
}
free(m);
if (r == 0)
continue;
- r = unit_add_dependency_by_name(u, UNIT_AFTER, m);
+ r = unit_add_dependency_by_name(u, UNIT_AFTER, m, NULL);
free(m);
if (r < 0)
* needed as soon as at least one non-LSB script is used. */
if (s->sysv_start_priority < 0) {
- log_debug("%s has no chkconfig header, trying to determine SysV priority from link farm.", unit_id(u));
+ log_debug("%s has no chkconfig header, trying to determine SysV priority from link farm.", u->meta.id);
if ((r = priority_from_rcd(s, file_name_from_path(path))) < 0)
goto finish;
if (s->sysv_start_priority < 0)
- log_warning("%s has neither a chkconfig header nor a directory link, cannot order unit!", unit_id(u));
+ log_warning("%s has neither a chkconfig header nor a directory link, cannot order unit!", u->meta.id);
}
if ((r = sysv_exec_commands(s)) < 0)
* needed for early boot) and don't create any links
* to it. */
- if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_BASIC_TARGET)) < 0 ||
- (r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_BASIC_TARGET)) < 0)
+ if ((r = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_BASIC_TARGET, NULL)) < 0 ||
+ (r = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_BASIC_TARGET, NULL)) < 0)
goto finish;
}
/* Special setting for all SysV services */
s->valid_no_process = true;
+ /* Don't timeout special services during boot (like fsck) */
+ if (s->sysv_runlevels && !chars_intersect("12345", s->sysv_runlevels))
+ s->timeout_usec = -1;
+
u->meta.load_state = UNIT_LOADED;
r = 0;
if (strv_isempty(UNIT(s)->meta.manager->sysvinit_path))
return 0;
- if ((t = unit_id(UNIT(s))))
+ if ((t = UNIT(s)->meta.id))
if ((r = service_load_sysv_name(s, t)) < 0)
return r;
if (UNIT(s)->meta.load_state == UNIT_STUB)
SET_FOREACH(t, UNIT(s)->meta.names, i) {
- if (t == unit_id(UNIT(s)))
+ if (t == UNIT(s)->meta.id)
continue;
if ((r == service_load_sysv_name(s, t)) < 0)
return 0;
}
+static int service_add_bus_name(Service *s) {
+ char *n;
+ int r;
+
+ assert(s);
+ assert(s->bus_name);
+
+ if (asprintf(&n, "dbus-%s.service", s->bus_name) < 0)
+ return 0;
+
+ r = unit_merge_by_name(UNIT(s), n);
+ free(n);
+
+ return r;
+}
+
static void service_init(Unit *u) {
Service *s = SERVICE(u);
assert(u);
assert(u->meta.load_state == UNIT_STUB);
- s->type = 0;
- s->restart = 0;
-
s->timeout_usec = DEFAULT_TIMEOUT_USEC;
s->restart_usec = DEFAULT_RESTART_USEC;
-
- exec_context_init(&s->exec_context);
-
s->timer_watch.type = WATCH_INVALID;
-
- s->state = SERVICE_DEAD;
-
s->sysv_start_priority = -1;
- s->permissions_start_only = false;
- s->root_directory_start_only = false;
- s->valid_no_process = false;
- s->kill_mode = 0;
- s->sysv_has_lsb = false;
- s->main_pid = s->control_pid = 0;
- s->main_pid_known = false;
- s->failure = false;
+ s->socket_fd = -1;
+
+ exec_context_init(&s->exec_context);
RATELIMIT_INIT(s->ratelimit, 10*USEC_PER_SEC, 5);
}
return 0;
if (!s->exec_command[SERVICE_EXEC_START]) {
- log_error("%s lacks ExecStart setting. Refusing.", unit_id(UNIT(s)));
+ log_error("%s lacks ExecStart setting. Refusing.", UNIT(s)->meta.id);
+ return -EINVAL;
+ }
+
+ if (s->type == SERVICE_DBUS && !s->bus_name) {
+ log_error("%s is of type D-Bus but no D-Bus service name has been specified. Refusing.", UNIT(s)->meta.id);
return -EINVAL;
}
if ((r = sysv_chkconfig_order(s)) < 0)
return r;
+
+ if (s->bus_name) {
+ if ((r = service_add_bus_name(s)) < 0)
+ return r;
+
+ if ((r = unit_watch_bus_name(u, s->bus_name)) < 0)
+ return r;
+ }
}
return service_verify(s);
"%sPIDFile: %s\n",
prefix, s->pid_file);
+ if (s->bus_name)
+ fprintf(f,
+ "%sBusName: %s\n"
+ "%sBus Name Good: %s\n",
+ prefix, s->bus_name,
+ prefix, yes_no(s->bus_name_good));
+
exec_context_dump(&s->exec_context, f, prefix);
for (c = 0; c < _SERVICE_EXEC_COMMAND_MAX; c++) {
p = manager_get_unit(UNIT(s)->meta.manager, k);
free(k);
- if (!p) continue;
+ if (!p)
+ continue;
if ((r = set_put(set, p)) < 0)
goto fail;
return r;
}
-
static int service_notify_sockets_dead(Service *s) {
Iterator i;
Set *set;
assert(s);
/* Notifies all our sockets when we die */
-
if ((r = service_get_sockets(s, &set)) < 0)
return r;
state == SERVICE_AUTO_RESTART)
service_notify_sockets_dead(s);
+ if (state != SERVICE_START_PRE &&
+ state != SERVICE_START &&
+ !(state == SERVICE_DEAD && UNIT(s)->meta.job))
+ service_close_socket_fd(s);
+
if (old_state != state)
- log_debug("%s changed %s → %s", unit_id(UNIT(s)), service_state_to_string(old_state), service_state_to_string(state));
+ log_debug("%s changed %s → %s", UNIT(s)->meta.id, service_state_to_string(old_state), service_state_to_string(state));
unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
}
int r;
int *fds = NULL;
unsigned n_fds = 0;
+ char **argv;
assert(s);
assert(c);
assert(_pid);
- if (pass_fds)
- if ((r = service_collect_fds(s, &fds, &n_fds)) < 0)
+ if (pass_fds) {
+ if (s->socket_fd >= 0) {
+ fds = &s->socket_fd;
+ n_fds = 1;
+ } else if ((r = service_collect_fds(s, &fds, &n_fds)) < 0)
goto fail;
+ }
if (timeout) {
if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
} else
unit_unwatch_timer(UNIT(s), &s->timer_watch);
- if ((r = exec_spawn(c,
- &s->exec_context,
- fds, n_fds,
- apply_permissions,
- apply_chroot,
- UNIT(s)->meta.manager->confirm_spawn,
- UNIT(s)->meta.cgroup_bondings,
- &pid)) < 0)
+ if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ r = exec_spawn(c,
+ argv,
+ &s->exec_context,
+ fds, n_fds,
+ apply_permissions,
+ apply_chroot,
+ UNIT(s)->meta.manager->confirm_spawn,
+ UNIT(s)->meta.cgroup_bondings,
+ &pid);
+
+ strv_free(argv);
+ if (r < 0)
goto fail;
+ if (fds) {
+ if (s->socket_fd >= 0)
+ service_close_socket_fd(s);
+ else
+ free(fds);
+ }
+
if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
/* FIXME: we need to do something here */
goto fail;
- free(fds);
*_pid = pid;
return 0;
return;
fail:
- log_warning("%s failed to run install restart timer: %s", unit_id(UNIT(s)), strerror(-r));
+ log_warning("%s failed to run install restart timer: %s", UNIT(s)->meta.id, strerror(-r));
service_enter_dead(s, false, false);
}
return;
fail:
- log_warning("%s failed to run stop-post executable: %s", unit_id(UNIT(s)), strerror(-r));
+ log_warning("%s failed to run stop-post executable: %s", UNIT(s)->meta.id, strerror(-r));
service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
}
return;
fail:
- log_warning("%s failed to kill processes: %s", unit_id(UNIT(s)), strerror(-r));
+ log_warning("%s failed to kill processes: %s", UNIT(s)->meta.id, strerror(-r));
if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
service_enter_stop_post(s, false);
return;
fail:
- log_warning("%s failed to run stop executable: %s", unit_id(UNIT(s)), strerror(-r));
+ log_warning("%s failed to run stop executable: %s", UNIT(s)->meta.id, strerror(-r));
service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
}
if (!success)
s->failure = true;
- if (main_pid_good(s) != 0 && cgroup_good(s) != 0)
+ if (main_pid_good(s) != 0 &&
+ cgroup_good(s) != 0 &&
+ (s->bus_name_good || s->type != SERVICE_DBUS))
service_set_state(s, SERVICE_RUNNING);
else if (s->valid_no_process)
service_set_state(s, SERVICE_EXITED);
return;
fail:
- log_warning("%s failed to run start-post executable: %s", unit_id(UNIT(s)), strerror(-r));
+ log_warning("%s failed to run start-post executable: %s", UNIT(s)->meta.id, strerror(-r));
service_enter_stop(s, false);
}
if ((r = service_spawn(s,
s->exec_command[SERVICE_EXEC_START],
- s->type == SERVICE_FORKING,
+ s->type == SERVICE_FORKING || s->type == SERVICE_DBUS,
true,
true,
true,
s->control_command = s->exec_command[SERVICE_EXEC_START];
service_set_state(s, SERVICE_START);
- } else if (s->type == SERVICE_FINISH) {
+ } else if (s->type == SERVICE_FINISH ||
+ s->type == SERVICE_DBUS) {
/* For finishing services we wait until the start
* process exited, too, but it is our main process. */
+ /* For D-Bus services we know the main pid right away,
+ * but wait for the bus name to appear on the bus. */
+
s->main_pid = pid;
s->main_pid_known = true;
- s->control_command = s->exec_command[SERVICE_EXEC_START];
service_set_state(s, SERVICE_START);
} else
assert_not_reached("Unknown service type");
return;
fail:
- log_warning("%s failed to run start exectuable: %s", unit_id(UNIT(s)), strerror(-r));
+ log_warning("%s failed to run start exectuable: %s", UNIT(s)->meta.id, strerror(-r));
service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
}
return;
fail:
- log_warning("%s failed to run start-pre executable: %s", unit_id(UNIT(s)), strerror(-r));
+ log_warning("%s failed to run start-pre executable: %s", UNIT(s)->meta.id, strerror(-r));
service_enter_dead(s, false, true);
}
if ((r = manager_add_job(UNIT(s)->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL)) < 0)
goto fail;
- log_debug("%s scheduled restart job.", unit_id(UNIT(s)));
+ log_debug("%s scheduled restart job.", UNIT(s)->meta.id);
return;
fail:
- log_warning("%s failed to schedule restart job: %s", unit_id(UNIT(s)), strerror(-r));
+ log_warning("%s failed to schedule restart job: %s", UNIT(s)->meta.id, strerror(-r));
service_enter_dead(s, false, false);
}
return;
fail:
- log_warning("%s failed to run reload executable: %s", unit_id(UNIT(s)), strerror(-r));
+ log_warning("%s failed to run reload executable: %s", UNIT(s)->meta.id, strerror(-r));
service_enter_stop(s, false);
}
return;
fail:
- log_warning("%s failed to run spawn next executable: %s", unit_id(UNIT(s)), strerror(-r));
+ log_warning("%s failed to run spawn next executable: %s", UNIT(s)->meta.id, strerror(-r));
if (s->state == SERVICE_START_PRE)
service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
/* Make sure we don't enter a busy loop of some kind. */
if (!ratelimit_test(&s->ratelimit)) {
- log_warning("%s start request repeated too quickly, refusing to start.", unit_id(u));
+ log_warning("%s start request repeated too quickly, refusing to start.", u->meta.id);
return -EAGAIN;
}
return state_translation_table[SERVICE(u)->state];
}
+static const char *service_sub_state_to_string(Unit *u) {
+ assert(u);
+
+ return service_state_to_string(SERVICE(u)->state);
+}
+
static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
Service *s = SERVICE(u);
bool success;
s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status;
}
- log_debug("%s: main process exited, code=%s, status=%i", unit_id(u), sigchld_code_to_string(code), status);
+ log_debug("%s: main process exited, code=%s, status=%i", u->meta.id, sigchld_code_to_string(code), status);
/* The service exited, so the service is officially
* gone. */
exec_status_fill(&s->control_command->exec_status, pid, code, status);
s->control_pid = 0;
- log_debug("%s: control process exited, code=%s status=%i", unit_id(u), sigchld_code_to_string(code), status);
+ log_debug("%s: control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
/* If we are shutting things down anyway we
* don't care about failing commands. */
/* There is another command to *
* execute, so let's do that. */
- log_debug("%s running next command for state %s", unit_id(u), service_state_to_string(s->state));
+ log_debug("%s running next command for state %s", u->meta.id, service_state_to_string(s->state));
service_run_next(s, success);
} else {
/* No further commands for this step, so let's
* figure out what to do next */
- log_debug("%s got final SIGCHLD for state %s", unit_id(u), service_state_to_string(s->state));
+ log_debug("%s got final SIGCHLD for state %s", u->meta.id, service_state_to_string(s->state));
switch (s->state) {
* executed. */
if ((r = service_load_pid_file(s)) < 0)
- log_warning("%s: failed to load PID file %s: %s", unit_id(UNIT(s)), s->pid_file, strerror(-r));
+ log_warning("%s: failed to load PID file %s: %s", UNIT(s)->meta.id, s->pid_file, strerror(-r));
}
/* Fall through */
case SERVICE_START_PRE:
case SERVICE_START:
- log_warning("%s operation timed out. Terminating.", unit_id(u));
+ log_warning("%s operation timed out. Terminating.", u->meta.id);
service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
break;
case SERVICE_START_POST:
case SERVICE_RELOAD:
- log_warning("%s operation timed out. Stopping.", unit_id(u));
+ log_warning("%s operation timed out. Stopping.", u->meta.id);
service_enter_stop(s, false);
break;
case SERVICE_STOP:
- log_warning("%s stopping timed out. Terminating.", unit_id(u));
+ log_warning("%s stopping timed out. Terminating.", u->meta.id);
service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
break;
case SERVICE_STOP_SIGTERM:
- log_warning("%s stopping timed out. Killing.", unit_id(u));
+ log_warning("%s stopping timed out. Killing.", u->meta.id);
service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
break;
* Must be something we cannot kill, so let's just be
* weirded out and continue */
- log_warning("%s still around after SIGKILL. Ignoring.", unit_id(u));
+ log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
service_enter_stop_post(s, false);
break;
case SERVICE_STOP_POST:
- log_warning("%s stopping timed out (2). Terminating.", unit_id(u));
+ log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
break;
case SERVICE_FINAL_SIGTERM:
- log_warning("%s stopping timed out (2). Killing.", unit_id(u));
+ log_warning("%s stopping timed out (2). Killing.", u->meta.id);
service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
break;
case SERVICE_FINAL_SIGKILL:
- log_warning("%s still around after SIGKILL (2). Entering maintainance mode.", unit_id(u));
+ log_warning("%s still around after SIGKILL (2). Entering maintainance mode.", u->meta.id);
service_enter_dead(s, false, true);
break;
case SERVICE_AUTO_RESTART:
- log_debug("%s holdoff time over, scheduling restart.", unit_id(u));
+ log_debug("%s holdoff time over, scheduling restart.", u->meta.id);
service_enter_restart(s);
break;
assert(u);
- log_debug("%s: cgroup is empty", unit_id(u));
+ log_debug("%s: cgroup is empty", u->meta.id);
switch (s->state) {
goto finish;
}
- if ((r = manager_load_unit(m, name, &service)) < 0)
+ if ((r = manager_load_unit(m, name, NULL, &service)) < 0)
goto finish;
- if ((r = manager_load_unit(m, rcnd_table[i+1], &runlevel)) < 0)
+ if ((r = manager_load_unit(m, rcnd_table[i+1], NULL, &runlevel)) < 0)
goto finish;
if (de->d_name[0] == 'S') {
return r;
}
+static void service_bus_name_owner_change(
+ Unit *u,
+ const char *name,
+ const char *old_owner,
+ const char *new_owner) {
+
+ Service *s = SERVICE(u);
+
+ assert(s);
+ assert(name);
+
+ assert(streq(s->bus_name, name));
+ assert(old_owner || new_owner);
+
+ if (old_owner && new_owner)
+ log_debug("%s's D-Bus name %s changed owner from %s to %s", u->meta.id, name, old_owner, new_owner);
+ else if (old_owner)
+ log_debug("%s's D-Bus name %s no longer registered by %s", u->meta.id, name, old_owner);
+ else
+ log_debug("%s's D-Bus name %s now registered by %s", u->meta.id, name, new_owner);
+
+ s->bus_name_good = !!new_owner;
+
+ if (s->type == SERVICE_DBUS) {
+
+ /* service_enter_running() will figure out what to
+ * do */
+ if (s->state == SERVICE_RUNNING)
+ service_enter_running(s, true);
+ else if (s->state == SERVICE_START && new_owner)
+ service_enter_start_post(s);
+
+ } else if (new_owner &&
+ s->main_pid <= 0 &&
+ (s->state == SERVICE_START ||
+ s->state == SERVICE_START_POST ||
+ s->state == SERVICE_RUNNING ||
+ s->state == SERVICE_RELOAD)) {
+
+ /* Try to acquire PID from bus service */
+ log_debug("Trying to acquire PID from D-Bus name...");
+
+ bus_query_pid(u->meta.manager, name);
+ }
+}
+
+static void service_bus_query_pid_done(
+ Unit *u,
+ const char *name,
+ pid_t pid) {
+
+ Service *s = SERVICE(u);
+
+ assert(s);
+ assert(name);
+
+ log_debug("%s's D-Bus name %s is now owned by process %u", u->meta.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))
+ s->main_pid = pid;
+}
+
+int service_set_socket_fd(Service *s, int fd) {
+ assert(s);
+ assert(fd >= 0);
+
+ /* This is called by the socket code when instantiating a new
+ * service for a stream socket and the socket needs to be
+ * configured. */
+
+ if (UNIT(s)->meta.load_state != UNIT_LOADED)
+ return -EINVAL;
+
+ if (s->socket_fd >= 0)
+ return -EBUSY;
+
+ if (s->state != SERVICE_DEAD)
+ return -EAGAIN;
+
+ s->socket_fd = fd;
+ return 0;
+}
+
static const char* const service_state_table[_SERVICE_STATE_MAX] = {
[SERVICE_DEAD] = "dead",
[SERVICE_START_PRE] = "start-pre",
static const char* const service_type_table[_SERVICE_TYPE_MAX] = {
[SERVICE_FORKING] = "forking",
[SERVICE_SIMPLE] = "simple",
- [SERVICE_FINISH] = "finish"
+ [SERVICE_FINISH] = "finish",
+ [SERVICE_DBUS] = "dbus"
};
DEFINE_STRING_TABLE_LOOKUP(service_type, ServiceType);
.can_reload = service_can_reload,
.active_state = service_active_state,
+ .sub_state_to_string = service_sub_state_to_string,
.sigchld_event = service_sigchld_event,
.timer_event = service_timer_event,
.cgroup_notify_empty = service_cgroup_notify_event,
+ .bus_name_owner_change = service_bus_name_owner_change,
+ .bus_query_pid_done = service_bus_query_pid_done,
+
.enumerate = service_enumerate
};
~ianmdlvl / elogind.git / blobdiff