1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <sys/types.h>
27 #include <sys/epoll.h>
29 #include <arpa/inet.h>
34 #include "load-dropin.h"
35 #include "load-fragment.h"
37 #include "unit-name.h"
38 #include "dbus-socket.h"
40 static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = {
41 [SOCKET_DEAD] = UNIT_INACTIVE,
42 [SOCKET_START_PRE] = UNIT_ACTIVATING,
43 [SOCKET_START_POST] = UNIT_ACTIVATING,
44 [SOCKET_LISTENING] = UNIT_ACTIVE,
45 [SOCKET_RUNNING] = UNIT_ACTIVE,
46 [SOCKET_STOP_PRE] = UNIT_DEACTIVATING,
47 [SOCKET_STOP_PRE_SIGTERM] = UNIT_DEACTIVATING,
48 [SOCKET_STOP_PRE_SIGKILL] = UNIT_DEACTIVATING,
49 [SOCKET_STOP_POST] = UNIT_DEACTIVATING,
50 [SOCKET_FINAL_SIGTERM] = UNIT_DEACTIVATING,
51 [SOCKET_FINAL_SIGKILL] = UNIT_DEACTIVATING,
52 [SOCKET_MAINTAINANCE] = UNIT_INACTIVE,
55 static const char* const state_string_table[_SOCKET_STATE_MAX] = {
56 [SOCKET_DEAD] = "dead",
57 [SOCKET_START_PRE] = "start-pre",
58 [SOCKET_START_POST] = "start-post",
59 [SOCKET_LISTENING] = "listening",
60 [SOCKET_RUNNING] = "running",
61 [SOCKET_STOP_PRE] = "stop-pre",
62 [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm",
63 [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill",
64 [SOCKET_STOP_POST] = "stop-post",
65 [SOCKET_FINAL_SIGTERM] = "final-sigterm",
66 [SOCKET_FINAL_SIGKILL] = "final-sigkill",
67 [SOCKET_MAINTAINANCE] = "maintainance"
70 static void socket_unwatch_control_pid(Socket *s) {
73 if (s->control_pid <= 0)
76 unit_unwatch_pid(UNIT(s), s->control_pid);
80 static void socket_done(Unit *u) {
81 Socket *s = SOCKET(u);
86 while ((p = s->ports)) {
87 LIST_REMOVE(SocketPort, port, s->ports, p);
95 exec_context_done(&s->exec_context);
96 exec_command_free_array(s->exec_command, _SOCKET_EXEC_COMMAND_MAX);
97 s->control_command = NULL;
99 socket_unwatch_control_pid(s);
103 free(s->bind_to_device);
104 s->bind_to_device = NULL;
106 unit_unwatch_timer(u, &s->timer_watch);
109 static void socket_init(Unit *u) {
110 Socket *s = SOCKET(u);
113 assert(u->meta.load_state == UNIT_STUB);
115 s->timer_watch.type = WATCH_INVALID;
116 s->backlog = SOMAXCONN;
117 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
118 s->directory_mode = 0755;
119 s->socket_mode = 0666;
121 exec_context_init(&s->exec_context);
124 static bool have_non_accept_socket(Socket *s) {
132 LIST_FOREACH(port, p, s->ports)
133 if (!socket_address_can_accept(&p->address))
139 static int socket_verify(Socket *s) {
142 if (UNIT(s)->meta.load_state != UNIT_LOADED)
146 log_error("%s lacks Listen setting. Refusing.", UNIT(s)->meta.id);
153 static int socket_load(Unit *u) {
154 Socket *s = SOCKET(u);
158 assert(u->meta.load_state == UNIT_STUB);
160 if ((r = unit_load_fragment_and_dropin(u)) < 0)
163 /* This is a new unit? Then let's add in some extras */
164 if (u->meta.load_state == UNIT_LOADED) {
166 if (have_non_accept_socket(s)) {
167 if ((r = unit_load_related_unit(u, ".service", (Unit**) &s->service)))
170 if ((r = unit_add_dependency(u, UNIT_BEFORE, UNIT(s->service))) < 0)
174 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
177 if ((r = unit_add_default_cgroup(u)) < 0)
181 return socket_verify(s);
184 static const char* listen_lookup(int type) {
186 if (type == SOCK_STREAM)
187 return "ListenStream";
188 else if (type == SOCK_DGRAM)
189 return "ListenDatagram";
190 else if (type == SOCK_SEQPACKET)
191 return "ListenSequentialPacket";
193 assert_not_reached("Unknown socket type");
197 static void socket_dump(Unit *u, FILE *f, const char *prefix) {
199 static const char* const command_table[_SOCKET_EXEC_COMMAND_MAX] = {
200 [SOCKET_EXEC_START_PRE] = "StartPre",
201 [SOCKET_EXEC_START_POST] = "StartPost",
202 [SOCKET_EXEC_STOP_PRE] = "StopPre",
203 [SOCKET_EXEC_STOP_POST] = "StopPost"
207 Socket *s = SOCKET(u);
215 p2 = strappend(prefix, "\t");
216 prefix2 = p2 ? p2 : prefix;
219 "%sSocket State: %s\n"
220 "%sBindIPv6Only: %s\n"
223 "%sSocketMode: %04o\n"
224 "%sDirectoryMode: %04o\n",
225 prefix, state_string_table[s->state],
226 prefix, yes_no(s->bind_ipv6_only),
228 prefix, kill_mode_to_string(s->kill_mode),
229 prefix, s->socket_mode,
230 prefix, s->directory_mode);
232 if (s->control_pid > 0)
234 "%sControl PID: %llu\n",
235 prefix, (unsigned long long) s->control_pid);
237 if (s->bind_to_device)
239 "%sBindToDevice: %s\n",
240 prefix, s->bind_to_device);
245 prefix, s->n_accepted);
247 LIST_FOREACH(port, p, s->ports) {
249 if (p->type == SOCKET_SOCKET) {
254 if ((r = socket_address_print(&p->address, &k)) < 0)
259 fprintf(f, "%s%s: %s\n", prefix, listen_lookup(p->address.type), k);
262 fprintf(f, "%sListenFIFO: %s\n", prefix, p->path);
265 exec_context_dump(&s->exec_context, f, prefix);
267 for (c = 0; c < _SOCKET_EXEC_COMMAND_MAX; c++) {
268 if (!s->exec_command[c])
271 fprintf(f, "%s→ %s:\n",
272 prefix, command_table[c]);
274 exec_command_dump_list(s->exec_command[c], f, prefix2);
280 static int instance_from_socket(int fd, unsigned nr, char **instance) {
285 struct sockaddr_un un;
286 struct sockaddr_in in;
287 struct sockaddr_in6 in6;
288 struct sockaddr_storage storage;
295 if (getsockname(fd, &local.sa, &l) < 0)
299 if (getpeername(fd, &remote.sa, &l) < 0)
302 switch (local.sa.sa_family) {
306 a = ntohl(local.in.sin_addr.s_addr),
307 b = ntohl(remote.in.sin_addr.s_addr);
310 "%u-%u.%u.%u.%u-%u-%u.%u.%u.%u-%u",
312 a >> 24, (a >> 16) & 0xFF, (a >> 8) & 0xFF, a & 0xFF,
313 ntohs(local.in.sin_port),
314 b >> 24, (b >> 16) & 0xFF, (b >> 8) & 0xFF, b & 0xFF,
315 ntohs(remote.in.sin_port)) < 0)
322 char a[INET6_ADDRSTRLEN], b[INET6_ADDRSTRLEN];
327 inet_ntop(AF_INET6, &local.in6.sin6_addr, a, sizeof(a)),
328 ntohs(local.in6.sin6_port),
329 inet_ntop(AF_INET6, &remote.in6.sin6_addr, b, sizeof(b)),
330 ntohs(remote.in6.sin6_port)) < 0)
340 if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &ucred, &l) < 0)
346 (unsigned long long) ucred.pid,
347 (unsigned long long) ucred.uid) < 0)
354 assert_not_reached("Unhandled socket type.");
361 static void socket_close_fds(Socket *s) {
366 LIST_FOREACH(port, p, s->ports) {
370 unit_unwatch_fd(UNIT(s), &p->fd_watch);
371 assert_se(close_nointr(p->fd) >= 0);
377 static int socket_open_fds(Socket *s) {
383 LIST_FOREACH(port, p, s->ports) {
388 if (p->type == SOCKET_SOCKET) {
390 if ((r = socket_address_listen(
402 assert(p->type == SOCKET_FIFO);
404 mkdir_parents(p->path, s->directory_mode);
406 if (mkfifo(p->path, s->socket_mode) < 0 && errno != EEXIST) {
411 if ((p->fd = open(p->path, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW)) < 0) {
416 if (fstat(p->fd, &st) < 0) {
421 /* FIXME verify user, access mode */
423 if (!S_ISFIFO(st.st_mode)) {
437 static void socket_unwatch_fds(Socket *s) {
442 LIST_FOREACH(port, p, s->ports) {
446 unit_unwatch_fd(UNIT(s), &p->fd_watch);
450 static int socket_watch_fds(Socket *s) {
456 LIST_FOREACH(port, p, s->ports) {
460 p->fd_watch.data.socket_accept =
462 socket_address_can_accept(&p->address);
464 if ((r = unit_watch_fd(UNIT(s), p->fd, EPOLLIN, &p->fd_watch)) < 0)
471 socket_unwatch_fds(s);
475 static void socket_set_state(Socket *s, SocketState state) {
476 SocketState old_state;
479 old_state = s->state;
482 if (state != SOCKET_START_PRE &&
483 state != SOCKET_START_POST &&
484 state != SOCKET_STOP_PRE &&
485 state != SOCKET_STOP_PRE_SIGTERM &&
486 state != SOCKET_STOP_PRE_SIGKILL &&
487 state != SOCKET_STOP_POST &&
488 state != SOCKET_FINAL_SIGTERM &&
489 state != SOCKET_FINAL_SIGKILL) {
490 unit_unwatch_timer(UNIT(s), &s->timer_watch);
491 socket_unwatch_control_pid(s);
492 s->control_command = NULL;
495 if (state != SOCKET_START_POST &&
496 state != SOCKET_LISTENING &&
497 state != SOCKET_RUNNING &&
498 state != SOCKET_STOP_PRE &&
499 state != SOCKET_STOP_PRE_SIGTERM &&
500 state != SOCKET_STOP_PRE_SIGKILL)
503 if (state != SOCKET_LISTENING)
504 socket_unwatch_fds(s);
506 if (state != old_state)
507 log_debug("%s changed %s → %s", s->meta.id, state_string_table[old_state], state_string_table[state]);
509 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
512 static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) {
521 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
524 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
535 UNIT(s)->meta.manager->confirm_spawn,
536 UNIT(s)->meta.cgroup_bondings,
543 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
544 /* FIXME: we need to do something here */
552 unit_unwatch_timer(UNIT(s), &s->timer_watch);
557 static void socket_enter_dead(Socket *s, bool success) {
563 socket_set_state(s, s->failure ? SOCKET_MAINTAINANCE : SOCKET_DEAD);
566 static void socket_enter_signal(Socket *s, SocketState state, bool success);
568 static void socket_enter_stop_post(Socket *s, bool success) {
575 socket_unwatch_control_pid(s);
577 if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_POST])) {
578 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
581 socket_set_state(s, SOCKET_STOP_POST);
583 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, true);
588 log_warning("%s failed to run stop-post executable: %s", s->meta.id, strerror(-r));
589 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
592 static void socket_enter_signal(Socket *s, SocketState state, bool success) {
601 if (s->kill_mode != KILL_NONE) {
602 int sig = (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_FINAL_SIGTERM) ? SIGTERM : SIGKILL;
604 if (s->kill_mode == KILL_CONTROL_GROUP) {
606 if ((r = cgroup_bonding_kill_list(UNIT(s)->meta.cgroup_bondings, sig)) < 0) {
607 if (r != -EAGAIN && r != -ESRCH)
613 if (!sent && s->control_pid > 0)
614 if (kill(s->kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH) {
621 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
624 socket_set_state(s, state);
625 } else if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL)
626 socket_enter_stop_post(s, true);
628 socket_enter_dead(s, true);
633 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
635 if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL)
636 socket_enter_stop_post(s, false);
638 socket_enter_dead(s, false);
641 static void socket_enter_stop_pre(Socket *s, bool success) {
648 socket_unwatch_control_pid(s);
650 if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_PRE])) {
651 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
654 socket_set_state(s, SOCKET_STOP_PRE);
656 socket_enter_stop_post(s, true);
661 log_warning("%s failed to run stop-pre executable: %s", s->meta.id, strerror(-r));
662 socket_enter_stop_post(s, false);
665 static void socket_enter_listening(Socket *s) {
669 if ((r = socket_watch_fds(s)) < 0) {
670 log_warning("%s failed to watch sockets: %s", s->meta.id, strerror(-r));
674 socket_set_state(s, SOCKET_LISTENING);
678 socket_enter_stop_pre(s, false);
681 static void socket_enter_start_post(Socket *s) {
685 if ((r = socket_open_fds(s)) < 0) {
686 log_warning("%s failed to listen on sockets: %s", s->meta.id, strerror(-r));
690 socket_unwatch_control_pid(s);
692 if ((s->control_command = s->exec_command[SOCKET_EXEC_START_POST])) {
693 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0) {
694 log_warning("%s failed to run start-post executable: %s", s->meta.id, strerror(-r));
698 socket_set_state(s, SOCKET_START_POST);
700 socket_enter_listening(s);
705 socket_enter_stop_pre(s, false);
708 static void socket_enter_start_pre(Socket *s) {
712 socket_unwatch_control_pid(s);
714 if ((s->control_command = s->exec_command[SOCKET_EXEC_START_PRE])) {
715 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
718 socket_set_state(s, SOCKET_START_PRE);
720 socket_enter_start_post(s);
725 log_warning("%s failed to run start-pre exectuable: %s", s->meta.id, strerror(-r));
726 socket_enter_dead(s, false);
729 static void socket_enter_running(Socket *s, int cfd) {
735 if ((r = manager_add_job(UNIT(s)->meta.manager, JOB_START, UNIT(s->service), JOB_REPLACE, true, NULL)) < 0)
738 socket_set_state(s, SOCKET_RUNNING);
741 char *prefix, *instance, *name;
743 if ((r = instance_from_socket(cfd, s->n_accepted++, &instance)))
746 if (!(prefix = unit_name_to_prefix(UNIT(s)->meta.id))) {
752 name = unit_name_build(prefix, instance, ".service");
759 r = manager_load_unit(UNIT(s)->meta.manager, name, NULL, &u);
765 if ((r = service_set_socket_fd(SERVICE(u), cfd) < 0))
770 if ((r = manager_add_job(u->meta.manager, JOB_START, u, JOB_REPLACE, true, NULL)) < 0)
777 log_warning("%s failed to queue socket startup job: %s", s->meta.id, strerror(-r));
778 socket_enter_stop_pre(s, false);
781 close_nointr_nofail(cfd);
784 static void socket_run_next(Socket *s, bool success) {
788 assert(s->control_command);
789 assert(s->control_command->command_next);
794 socket_unwatch_control_pid(s);
796 s->control_command = s->control_command->command_next;
798 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
804 log_warning("%s failed to run spawn next executable: %s", s->meta.id, strerror(-r));
806 if (s->state == SOCKET_START_POST)
807 socket_enter_stop_pre(s, false);
808 else if (s->state == SOCKET_STOP_POST)
809 socket_enter_dead(s, false);
811 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
814 static int socket_start(Unit *u) {
815 Socket *s = SOCKET(u);
819 /* We cannot fulfill this request right now, try again later
821 if (s->state == SOCKET_STOP_PRE ||
822 s->state == SOCKET_STOP_PRE_SIGKILL ||
823 s->state == SOCKET_STOP_PRE_SIGTERM ||
824 s->state == SOCKET_STOP_POST ||
825 s->state == SOCKET_FINAL_SIGTERM ||
826 s->state == SOCKET_FINAL_SIGKILL)
829 if (s->state == SOCKET_START_PRE ||
830 s->state == SOCKET_START_POST)
833 /* Cannot run this without the service being around */
835 if (s->service->meta.load_state != UNIT_LOADED)
838 /* If the service is alredy actvie we cannot start the
840 if (s->service->state != SERVICE_DEAD &&
841 s->service->state != SERVICE_MAINTAINANCE &&
842 s->service->state != SERVICE_AUTO_RESTART)
846 assert(s->state == SOCKET_DEAD || s->state == SOCKET_MAINTAINANCE);
849 socket_enter_start_pre(s);
853 static int socket_stop(Unit *u) {
854 Socket *s = SOCKET(u);
858 /* We cannot fulfill this request right now, try again later
860 if (s->state == SOCKET_START_PRE ||
861 s->state == SOCKET_START_POST)
865 if (s->state == SOCKET_STOP_PRE ||
866 s->state == SOCKET_STOP_PRE_SIGTERM ||
867 s->state == SOCKET_STOP_PRE_SIGKILL ||
868 s->state == SOCKET_STOP_POST ||
869 s->state == SOCKET_FINAL_SIGTERM ||
870 s->state == SOCKET_FINAL_SIGTERM)
873 assert(s->state == SOCKET_LISTENING || s->state == SOCKET_RUNNING);
875 socket_enter_stop_pre(s, true);
879 static UnitActiveState socket_active_state(Unit *u) {
882 return state_translation_table[SOCKET(u)->state];
885 static const char *socket_sub_state_to_string(Unit *u) {
888 return state_string_table[SOCKET(u)->state];
891 static void socket_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
892 Socket *s = SOCKET(u);
898 log_debug("Incoming traffic on %s", u->meta.id);
900 if (events != EPOLLIN) {
901 log_error("Got invalid poll event on socket.");
905 if (w->data.socket_accept) {
908 if ((cfd = accept4(fd, NULL, NULL, SOCK_NONBLOCK)) < 0) {
913 log_error("Failed to accept socket: %m");
921 socket_enter_running(s, cfd);
925 socket_enter_stop_pre(s, false);
928 static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) {
929 Socket *s = SOCKET(u);
935 success = code == CLD_EXITED && status == 0;
936 s->failure = s->failure || !success;
938 assert(s->control_pid == pid);
939 assert(s->control_command);
941 exec_status_fill(&s->control_command->exec_status, pid, code, status);
944 log_debug("%s control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
946 if (s->control_command->command_next && success) {
947 log_debug("%s running next command for state %s", u->meta.id, state_string_table[s->state]);
948 socket_run_next(s, success);
950 /* No further commands for this step, so let's figure
951 * out what to do next */
953 log_debug("%s got final SIGCHLD for state %s", u->meta.id, state_string_table[s->state]);
957 case SOCKET_START_PRE:
959 socket_enter_start_post(s);
961 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
964 case SOCKET_START_POST:
966 socket_enter_listening(s);
968 socket_enter_stop_pre(s, false);
971 case SOCKET_STOP_PRE:
972 case SOCKET_STOP_PRE_SIGTERM:
973 case SOCKET_STOP_PRE_SIGKILL:
974 socket_enter_stop_post(s, success);
977 case SOCKET_STOP_POST:
978 case SOCKET_FINAL_SIGTERM:
979 case SOCKET_FINAL_SIGKILL:
980 socket_enter_dead(s, success);
984 assert_not_reached("Uh, control process died at wrong time.");
989 static void socket_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
990 Socket *s = SOCKET(u);
993 assert(elapsed == 1);
994 assert(w == &s->timer_watch);
998 case SOCKET_START_PRE:
999 log_warning("%s starting timed out. Terminating.", u->meta.id);
1000 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
1002 case SOCKET_START_POST:
1003 log_warning("%s starting timed out. Stopping.", u->meta.id);
1004 socket_enter_stop_pre(s, false);
1007 case SOCKET_STOP_PRE:
1008 log_warning("%s stopping timed out. Terminating.", u->meta.id);
1009 socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, false);
1012 case SOCKET_STOP_PRE_SIGTERM:
1013 log_warning("%s stopping timed out. Killing.", u->meta.id);
1014 socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, false);
1017 case SOCKET_STOP_PRE_SIGKILL:
1018 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
1019 socket_enter_stop_post(s, false);
1022 case SOCKET_STOP_POST:
1023 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
1024 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
1027 case SOCKET_FINAL_SIGTERM:
1028 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
1029 socket_enter_signal(s, SOCKET_FINAL_SIGKILL, false);
1032 case SOCKET_FINAL_SIGKILL:
1033 log_warning("%s still around after SIGKILL (2). Entering maintainance mode.", u->meta.id);
1034 socket_enter_dead(s, false);
1038 assert_not_reached("Timeout at wrong time.");
1042 int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds) {
1051 /* Called from the service code for requesting our fds */
1054 LIST_FOREACH(port, p, s->ports)
1058 if (!(rfds = new(int, rn_fds)) < 0)
1062 LIST_FOREACH(port, p, s->ports)
1066 assert(k == rn_fds);
1074 void socket_notify_service_dead(Socket *s) {
1077 /* The service is dead. Dang. */
1079 if (s->state == SOCKET_RUNNING) {
1080 log_debug("%s got notified about service death.", s->meta.id);
1081 socket_enter_listening(s);
1085 const UnitVTable socket_vtable = {
1086 .suffix = ".socket",
1088 .init = socket_init,
1089 .load = socket_load,
1090 .done = socket_done,
1092 .dump = socket_dump,
1094 .start = socket_start,
1095 .stop = socket_stop,
1097 .active_state = socket_active_state,
1098 .sub_state_to_string = socket_sub_state_to_string,
1100 .fd_event = socket_fd_event,
1101 .sigchld_event = socket_sigchld_event,
1102 .timer_event = socket_timer_event,
1104 .bus_message_handler = bus_socket_message_handler