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5cb5a6ff
LP		 1/*-*- Mode: C; c-basic-offset: 8 -*-*/
2
a7334b09
LP		 3/***
4 This file is part of systemd.
5
6 Copyright 2010 Lennart Poettering
7
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.
12
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.
17
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/>.
20***/
21
83c60c9f
LP		 22#include <sys/types.h>
23#include <sys/stat.h>
24#include <unistd.h>
25#include <errno.h>
26#include <fcntl.h>
f94ea366 27#include <sys/epoll.h>
034c6ed7 28#include <signal.h>
4f2d528d 29#include <arpa/inet.h>
83c60c9f 30
87f0e418 31#include "unit.h"
5cb5a6ff 32#include "socket.h"
83c60c9f 33#include "log.h"
23a177ef
LP		 34#include "load-dropin.h"
35#include "load-fragment.h"
9e2f7c11 36#include "strv.h"
4f2d528d 37#include "unit-name.h"
4139c1b2 38#include "dbus-socket.h"
83c60c9f 39
acbb0225 40static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = {
87f0e418
LP		 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,
80876c20
LP		 50 [SOCKET_FINAL_SIGTERM] = UNIT_DEACTIVATING,
51 [SOCKET_FINAL_SIGKILL] = UNIT_DEACTIVATING,
87f0e418 52 [SOCKET_MAINTAINANCE] = UNIT_INACTIVE,
83c60c9f 53};
5cb5a6ff 54
a16e1123
LP		 55static void socket_init(Unit *u) {
56 Socket *s = SOCKET(u);
57
58 assert(u);
59 assert(u->meta.load_state == UNIT_STUB);
60
61 s->timer_watch.type = WATCH_INVALID;
62 s->backlog = SOMAXCONN;
63 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
64 s->directory_mode = 0755;
65 s->socket_mode = 0666;
66
67 exec_context_init(&s->exec_context);
68
69 s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID;
70}
acbb0225 71
5e94833f
LP		 72static void socket_unwatch_control_pid(Socket *s) {
73 assert(s);
74
75 if (s->control_pid <= 0)
76 return;
77
78 unit_unwatch_pid(UNIT(s), s->control_pid);
79 s->control_pid = 0;
80}
81
87f0e418
LP		 82static void socket_done(Unit *u) {
83 Socket *s = SOCKET(u);
034c6ed7
LP		 84 SocketPort *p;
85
86 assert(s);
87
88 while ((p = s->ports)) {
89 LIST_REMOVE(SocketPort, port, s->ports, p);
90
a16e1123
LP		 91 if (p->fd >= 0) {
92 unit_unwatch_fd(UNIT(s), &p->fd_watch);
93 close_nointr_nofail(p->fd);
94 }
95
034c6ed7
LP		 96 free(p->path);
97 free(p);
98 }
99
100 exec_context_done(&s->exec_context);
e537352b 101 exec_command_free_array(s->exec_command, _SOCKET_EXEC_COMMAND_MAX);
034c6ed7
LP		 102 s->control_command = NULL;
103
5e94833f 104 socket_unwatch_control_pid(s);
034c6ed7
LP		 105
106 s->service = NULL;
107
acbb0225 108 free(s->bind_to_device);
e537352b 109 s->bind_to_device = NULL;
acbb0225
LP		 110
111 unit_unwatch_timer(u, &s->timer_watch);
5cb5a6ff
LP		 112}
113
4f2d528d
LP		 114static bool have_non_accept_socket(Socket *s) {
115 SocketPort *p;
116
117 assert(s);
118
119 if (!s->accept)
120 return true;
121
122 LIST_FOREACH(port, p, s->ports)
123 if (!socket_address_can_accept(&p->address))
124 return true;
125
126 return false;
127}
128
129static int socket_verify(Socket *s) {
130 assert(s);
131
132 if (UNIT(s)->meta.load_state != UNIT_LOADED)
133 return 0;
134
135 if (!s->ports) {
136 log_error("%s lacks Listen setting. Refusing.", UNIT(s)->meta.id);
137 return -EINVAL;
138 }
139
140 return 0;
141}
142
e537352b
LP		 143static int socket_load(Unit *u) {
144 Socket *s = SOCKET(u);
145 int r;
44d8db9e 146
e537352b
LP		 147 assert(u);
148 assert(u->meta.load_state == UNIT_STUB);
44d8db9e 149
e537352b 150 if ((r = unit_load_fragment_and_dropin(u)) < 0)
23a177ef 151 return r;
44d8db9e 152
23a177ef 153 /* This is a new unit? Then let's add in some extras */
e537352b 154 if (u->meta.load_state == UNIT_LOADED) {
44d8db9e 155
4f2d528d
LP		 156 if (have_non_accept_socket(s)) {
157 if ((r = unit_load_related_unit(u, ".service", (Unit**) &s->service)))
158 return r;
23a177ef 159
701cc384 160 if ((r = unit_add_dependency(u, UNIT_BEFORE, UNIT(s->service), true)) < 0)
4f2d528d
LP		 161 return r;
162 }
44d8db9e 163
23a177ef
LP		 164 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
165 return r;
166
167 if ((r = unit_add_default_cgroup(u)) < 0)
168 return r;
169 }
170
4f2d528d 171 return socket_verify(s);
44d8db9e
LP		 172}
173
542563ba
LP		 174static const char* listen_lookup(int type) {
175
176 if (type == SOCK_STREAM)
177 return "ListenStream";
178 else if (type == SOCK_DGRAM)
179 return "ListenDatagram";
180 else if (type == SOCK_SEQPACKET)
181 return "ListenSequentialPacket";
182
034c6ed7 183 assert_not_reached("Unknown socket type");
542563ba
LP		 184 return NULL;
185}
186
87f0e418 187static void socket_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 188
5cb5a6ff 189 SocketExecCommand c;
87f0e418 190 Socket *s = SOCKET(u);
542563ba 191 SocketPort *p;
82ba9f08
LP		 192 const char *prefix2;
193 char *p2;
5cb5a6ff
LP		 194
195 assert(s);
fa068367 196 assert(f);
5cb5a6ff 197
82ba9f08
LP		 198 p2 = strappend(prefix, "\t");
199 prefix2 = p2 ? p2 : prefix;
c43d20a0 200
5cb5a6ff
LP		 201 fprintf(f,
202 "%sSocket State: %s\n"
542563ba 203 "%sBindIPv6Only: %s\n"
b5a0699f 204 "%sBacklog: %u\n"
50159e6a 205 "%sKillMode: %s\n"
b5a0699f
LP		 206 "%sSocketMode: %04o\n"
207 "%sDirectoryMode: %04o\n",
a16e1123 208 prefix, socket_state_to_string(s->state),
542563ba 209 prefix, yes_no(s->bind_ipv6_only),
b5a0699f 210 prefix, s->backlog,
50159e6a 211 prefix, kill_mode_to_string(s->kill_mode),
b5a0699f
LP		 212 prefix, s->socket_mode,
213 prefix, s->directory_mode);
542563ba 214
70123e68
LP		 215 if (s->control_pid > 0)
216 fprintf(f,
217 "%sControl PID: %llu\n",
218 prefix, (unsigned long long) s->control_pid);
219
acbb0225
LP		 220 if (s->bind_to_device)
221 fprintf(f,
222 "%sBindToDevice: %s\n",
223 prefix, s->bind_to_device);
224
4f2d528d
LP		 225 if (s->accept)
226 fprintf(f,
227 "%sAccepted: %u\n",
228 prefix, s->n_accepted);
229
034c6ed7 230 LIST_FOREACH(port, p, s->ports) {
5cb5a6ff 231
542563ba
LP		 232 if (p->type == SOCKET_SOCKET) {
233 const char *t;
234 int r;
235 char *k;
236
237 if ((r = socket_address_print(&p->address, &k)) < 0)
238 t = strerror(-r);
239 else
240 t = k;
241
242 fprintf(f, "%s%s: %s\n", prefix, listen_lookup(p->address.type), k);
243 free(k);
244 } else
245 fprintf(f, "%sListenFIFO: %s\n", prefix, p->path);
246 }
5cb5a6ff
LP		 247
248 exec_context_dump(&s->exec_context, f, prefix);
249
e537352b 250 for (c = 0; c < _SOCKET_EXEC_COMMAND_MAX; c++) {
c43d20a0
LP		 251 if (!s->exec_command[c])
252 continue;
5cb5a6ff 253
40d50879 254 fprintf(f, "%s-> %s:\n",
a16e1123 255 prefix, socket_exec_command_to_string(c));
c43d20a0
LP		 256
257 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 258 }
c43d20a0 259
82ba9f08 260 free(p2);
5cb5a6ff
LP		 261}
262
4f2d528d
LP		 263static int instance_from_socket(int fd, unsigned nr, char **instance) {
264 socklen_t l;
265 char *r;
266 union {
267 struct sockaddr sa;
268 struct sockaddr_un un;
269 struct sockaddr_in in;
270 struct sockaddr_in6 in6;
271 struct sockaddr_storage storage;
272 } local, remote;
273
274 assert(fd >= 0);
275 assert(instance);
276
277 l = sizeof(local);
278 if (getsockname(fd, &local.sa, &l) < 0)
279 return -errno;
280
281 l = sizeof(remote);
282 if (getpeername(fd, &remote.sa, &l) < 0)
283 return -errno;
284
285 switch (local.sa.sa_family) {
286
287 case AF_INET: {
288 uint32_t
289 a = ntohl(local.in.sin_addr.s_addr),
290 b = ntohl(remote.in.sin_addr.s_addr);
291
292 if (asprintf(&r,
a16e1123 293 "%u-%u.%u.%u.%u:%u-%u.%u.%u.%u:%u",
4f2d528d
LP		 294 nr,
295 a >> 24, (a >> 16) & 0xFF, (a >> 8) & 0xFF, a & 0xFF,
296 ntohs(local.in.sin_port),
297 b >> 24, (b >> 16) & 0xFF, (b >> 8) & 0xFF, b & 0xFF,
298 ntohs(remote.in.sin_port)) < 0)
299 return -ENOMEM;
300
301 break;
302 }
303
304 case AF_INET6: {
305 char a[INET6_ADDRSTRLEN], b[INET6_ADDRSTRLEN];
306
307 if (asprintf(&r,
a16e1123 308 "%u-%s:%u-%s:%u",
4f2d528d
LP		 309 nr,
310 inet_ntop(AF_INET6, &local.in6.sin6_addr, a, sizeof(a)),
311 ntohs(local.in6.sin6_port),
312 inet_ntop(AF_INET6, &remote.in6.sin6_addr, b, sizeof(b)),
313 ntohs(remote.in6.sin6_port)) < 0)
314 return -ENOMEM;
315
316 break;
317 }
318
319 case AF_UNIX: {
320 struct ucred ucred;
321
322 l = sizeof(ucred);
323 if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &ucred, &l) < 0)
324 return -errno;
325
326 if (asprintf(&r,
327 "%u-%llu-%llu",
328 nr,
329 (unsigned long long) ucred.pid,
330 (unsigned long long) ucred.uid) < 0)
331 return -ENOMEM;
332
333 break;
334 }
335
336 default:
337 assert_not_reached("Unhandled socket type.");
338 }
339
340 *instance = r;
341 return 0;
342}
343
034c6ed7 344static void socket_close_fds(Socket *s) {
83c60c9f
LP		 345 SocketPort *p;
346
347 assert(s);
348
034c6ed7 349 LIST_FOREACH(port, p, s->ports) {
83c60c9f
LP		 350 if (p->fd < 0)
351 continue;
352
acbb0225 353 unit_unwatch_fd(UNIT(s), &p->fd_watch);
a16e1123
LP		 354 close_nointr_nofail(p->fd);
355
356 /* One little note: we should never delete any sockets
357 * in the file system here! After all some other
358 * process we spawned might still have a reference of
359 * this fd and wants to continue to use it. Therefore
360 * we delete sockets in the file system before we
361 * create a new one, not after we stopped using
362 * one! */
9152c765 363
83c60c9f
LP		 364 p->fd = -1;
365 }
366}
367
034c6ed7 368static int socket_open_fds(Socket *s) {
83c60c9f
LP		 369 SocketPort *p;
370 int r;
371
372 assert(s);
373
034c6ed7 374 LIST_FOREACH(port, p, s->ports) {
83c60c9f 375
034c6ed7
LP		 376 if (p->fd >= 0)
377 continue;
83c60c9f
LP		 378
379 if (p->type == SOCKET_SOCKET) {
380
b5a0699f
LP		 381 if ((r = socket_address_listen(
382 &p->address,
383 s->backlog,
384 s->bind_ipv6_only,
385 s->bind_to_device,
386 s->directory_mode,
387 s->socket_mode,
388 &p->fd)) < 0)
83c60c9f
LP		 389 goto rollback;
390
391 } else {
392 struct stat st;
393 assert(p->type == SOCKET_FIFO);
394
8cb45bf8
LP		 395 mkdir_parents(p->path, s->directory_mode);
396
397 if (mkfifo(p->path, s->socket_mode) < 0 && errno != EEXIST) {
83c60c9f
LP		 398 r = -errno;
399 goto rollback;
400 }
401
402 if ((p->fd = open(p->path, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW)) < 0) {
403 r = -errno;
404 goto rollback;
405 }
406
407 if (fstat(p->fd, &st) < 0) {
408 r = -errno;
409 goto rollback;
410 }
411
412 /* FIXME verify user, access mode */
413
414 if (!S_ISFIFO(st.st_mode)) {
415 r = -EEXIST;
416 goto rollback;
417 }
418 }
034c6ed7
LP		 419 }
420
421 return 0;
422
423rollback:
424 socket_close_fds(s);
425 return r;
426}
427
428static void socket_unwatch_fds(Socket *s) {
429 SocketPort *p;
9152c765 430
034c6ed7
LP		 431 assert(s);
432
433 LIST_FOREACH(port, p, s->ports) {
434 if (p->fd < 0)
435 continue;
436
acbb0225 437 unit_unwatch_fd(UNIT(s), &p->fd_watch);
83c60c9f 438 }
034c6ed7
LP		 439}
440
441static int socket_watch_fds(Socket *s) {
442 SocketPort *p;
443 int r;
444
445 assert(s);
83c60c9f 446
034c6ed7
LP		 447 LIST_FOREACH(port, p, s->ports) {
448 if (p->fd < 0)
449 continue;
450
4f2d528d
LP		 451 p->fd_watch.data.socket_accept =
452 s->accept &&
453 socket_address_can_accept(&p->address);
454
f94ea366 455 if ((r = unit_watch_fd(UNIT(s), p->fd, EPOLLIN, &p->fd_watch)) < 0)
034c6ed7
LP		 456 goto fail;
457 }
83c60c9f 458
542563ba 459 return 0;
83c60c9f 460
034c6ed7
LP		 461fail:
462 socket_unwatch_fds(s);
463 return r;
464}
465
466static void socket_set_state(Socket *s, SocketState state) {
467 SocketState old_state;
468 assert(s);
469
470 old_state = s->state;
471 s->state = state;
472
473 if (state != SOCKET_START_PRE &&
474 state != SOCKET_START_POST &&
475 state != SOCKET_STOP_PRE &&
476 state != SOCKET_STOP_PRE_SIGTERM &&
477 state != SOCKET_STOP_PRE_SIGKILL &&
478 state != SOCKET_STOP_POST &&
80876c20
LP		 479 state != SOCKET_FINAL_SIGTERM &&
480 state != SOCKET_FINAL_SIGKILL) {
acbb0225 481 unit_unwatch_timer(UNIT(s), &s->timer_watch);
5e94833f 482 socket_unwatch_control_pid(s);
034c6ed7 483 s->control_command = NULL;
a16e1123 484 s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID;
e537352b 485 }
034c6ed7 486
a16e1123
LP		 487 if (state != SOCKET_LISTENING)
488 socket_unwatch_fds(s);
489
034c6ed7
LP		 490 if (state != SOCKET_START_POST &&
491 state != SOCKET_LISTENING &&
492 state != SOCKET_RUNNING &&
493 state != SOCKET_STOP_PRE &&
494 state != SOCKET_STOP_PRE_SIGTERM &&
495 state != SOCKET_STOP_PRE_SIGKILL)
496 socket_close_fds(s);
497
e537352b 498 if (state != old_state)
40d50879 499 log_debug("%s changed %s -> %s",
a16e1123
LP		 500 s->meta.id,
501 socket_state_to_string(old_state),
502 socket_state_to_string(state));
acbb0225
LP		 503
504 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
034c6ed7
LP		 505}
506
a16e1123
LP		 507static int socket_coldplug(Unit *u) {
508 Socket *s = SOCKET(u);
509 int r;
510
511 assert(s);
512 assert(s->state == SOCKET_DEAD);
513
514 if (s->deserialized_state != s->state) {
515
516 if (s->deserialized_state == SOCKET_START_PRE ||
517 s->deserialized_state == SOCKET_START_POST ||
518 s->deserialized_state == SOCKET_STOP_PRE ||
519 s->deserialized_state == SOCKET_STOP_PRE_SIGTERM ||
520 s->deserialized_state == SOCKET_STOP_PRE_SIGKILL ||
521 s->deserialized_state == SOCKET_STOP_POST ||
522 s->deserialized_state == SOCKET_FINAL_SIGTERM ||
523 s->deserialized_state == SOCKET_FINAL_SIGKILL) {
524
525 if (s->control_pid <= 0)
526 return -EBADMSG;
527
528 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
529 return r;
530
531 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
532 return r;
533 }
534
535 if (s->deserialized_state == SOCKET_START_POST ||
536 s->deserialized_state == SOCKET_LISTENING ||
537 s->deserialized_state == SOCKET_RUNNING ||
538 s->deserialized_state == SOCKET_STOP_PRE ||
539 s->deserialized_state == SOCKET_STOP_PRE_SIGTERM ||
540 s->deserialized_state == SOCKET_STOP_PRE_SIGKILL)
541 if ((r = socket_open_fds(s)) < 0)
542 return r;
543
544 if (s->deserialized_state == SOCKET_LISTENING)
545 if ((r = socket_watch_fds(s)) < 0)
546 return r;
547
548 socket_set_state(s, s->deserialized_state);
549 }
550
551 return 0;
552}
553
e537352b 554static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) {
034c6ed7
LP		 555 pid_t pid;
556 int r;
9e2f7c11 557 char **argv;
034c6ed7
LP		 558
559 assert(s);
560 assert(c);
561 assert(_pid);
562
e537352b
LP		 563 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
564 goto fail;
034c6ed7 565
9e2f7c11
LP		 566 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
567 r = -ENOMEM;
568 goto fail;
569 }
570
571 r = exec_spawn(c,
572 argv,
573 &s->exec_context,
574 NULL, 0,
575 true,
576 true,
577 UNIT(s)->meta.manager->confirm_spawn,
578 UNIT(s)->meta.cgroup_bondings,
579 &pid);
580
581 strv_free(argv);
582 if (r < 0)
034c6ed7
LP		 583 goto fail;
584
87f0e418 585 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 586 /* FIXME: we need to do something here */
587 goto fail;
83c60c9f 588
034c6ed7
LP		 589 *_pid = pid;
590
591 return 0;
592
593fail:
e537352b 594 unit_unwatch_timer(UNIT(s), &s->timer_watch);
83c60c9f
LP		 595
596 return r;
542563ba
LP		 597}
598
034c6ed7
LP		 599static void socket_enter_dead(Socket *s, bool success) {
600 assert(s);
601
602 if (!success)
603 s->failure = true;
604
605 socket_set_state(s, s->failure ? SOCKET_MAINTAINANCE : SOCKET_DEAD);
606}
607
80876c20
LP		 608static void socket_enter_signal(Socket *s, SocketState state, bool success);
609
034c6ed7
LP		 610static void socket_enter_stop_post(Socket *s, bool success) {
611 int r;
612 assert(s);
613
614 if (!success)
615 s->failure = true;
616
5e94833f
LP		 617 socket_unwatch_control_pid(s);
618
a16e1123
LP		 619 s->control_command_id = SOCKET_EXEC_STOP_POST;
620
80876c20 621 if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_POST])) {
e537352b 622 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
034c6ed7
LP		 623 goto fail;
624
80876c20
LP		 625 socket_set_state(s, SOCKET_STOP_POST);
626 } else
627 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, true);
034c6ed7
LP		 628
629 return;
630
631fail:
9e2f7c11 632 log_warning("%s failed to run stop-post executable: %s", s->meta.id, strerror(-r));
80876c20 633 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
034c6ed7
LP		 634}
635
636static void socket_enter_signal(Socket *s, SocketState state, bool success) {
637 int r;
80876c20 638 bool sent = false;
034c6ed7
LP		 639
640 assert(s);
641
642 if (!success)
643 s->failure = true;
644
80876c20
LP		 645 if (s->kill_mode != KILL_NONE) {
646 int sig = (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_FINAL_SIGTERM) ? SIGTERM : SIGKILL;
034c6ed7 647
50159e6a
LP		 648 if (s->kill_mode == KILL_CONTROL_GROUP) {
649
650 if ((r = cgroup_bonding_kill_list(UNIT(s)->meta.cgroup_bondings, sig)) < 0) {
651 if (r != -EAGAIN && r != -ESRCH)
652 goto fail;
653 } else
654 sent = true;
034c6ed7 655 }
50159e6a 656
80876c20 657 if (!sent && s->control_pid > 0)
50159e6a
LP		 658 if (kill(s->kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH) {
659 r = -errno;
660 goto fail;
661 }
d6ea93e3 662 }
034c6ed7 663
80876c20
LP		 664 if (sent) {
665 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
666 goto fail;
d6ea93e3 667
80876c20
LP		 668 socket_set_state(s, state);
669 } else if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL)
670 socket_enter_stop_post(s, true);
671 else
034c6ed7
LP		 672 socket_enter_dead(s, true);
673
674 return;
675
676fail:
9e2f7c11 677 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 678
679 if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL)
680 socket_enter_stop_post(s, false);
681 else
682 socket_enter_dead(s, false);
683}
684
685static void socket_enter_stop_pre(Socket *s, bool success) {
686 int r;
687 assert(s);
688
689 if (!success)
690 s->failure = true;
691
5e94833f
LP		 692 socket_unwatch_control_pid(s);
693
a16e1123
LP		 694 s->control_command_id = SOCKET_EXEC_STOP_PRE;
695
80876c20 696 if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_PRE])) {
e537352b 697 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
034c6ed7
LP		 698 goto fail;
699
80876c20
LP		 700 socket_set_state(s, SOCKET_STOP_PRE);
701 } else
034c6ed7
LP		 702 socket_enter_stop_post(s, true);
703
704 return;
705
706fail:
9e2f7c11 707 log_warning("%s failed to run stop-pre executable: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 708 socket_enter_stop_post(s, false);
709}
710
e9af15c3
LP		 711static void socket_enter_listening(Socket *s) {
712 int r;
713 assert(s);
714
715 if ((r = socket_watch_fds(s)) < 0) {
9e2f7c11 716 log_warning("%s failed to watch sockets: %s", s->meta.id, strerror(-r));
e9af15c3
LP		 717 goto fail;
718 }
719
720 socket_set_state(s, SOCKET_LISTENING);
721 return;
722
723fail:
724 socket_enter_stop_pre(s, false);
725}
726
034c6ed7
LP		 727static void socket_enter_start_post(Socket *s) {
728 int r;
729 assert(s);
730
e9af15c3 731 if ((r = socket_open_fds(s)) < 0) {
9e2f7c11 732 log_warning("%s failed to listen on sockets: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 733 goto fail;
734 }
735
5e94833f
LP		 736 socket_unwatch_control_pid(s);
737
a16e1123
LP		 738 s->control_command_id = SOCKET_EXEC_START_POST;
739
80876c20 740 if ((s->control_command = s->exec_command[SOCKET_EXEC_START_POST])) {
e537352b 741 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0) {
9e2f7c11 742 log_warning("%s failed to run start-post executable: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 743 goto fail;
744 }
745
80876c20
LP		 746 socket_set_state(s, SOCKET_START_POST);
747 } else
e9af15c3 748 socket_enter_listening(s);
034c6ed7
LP		 749
750 return;
751
752fail:
753 socket_enter_stop_pre(s, false);
754}
755
756static void socket_enter_start_pre(Socket *s) {
757 int r;
758 assert(s);
759
5e94833f
LP		 760 socket_unwatch_control_pid(s);
761
a16e1123
LP		 762 s->control_command_id = SOCKET_EXEC_START_PRE;
763
80876c20 764 if ((s->control_command = s->exec_command[SOCKET_EXEC_START_PRE])) {
e537352b 765 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
034c6ed7
LP		 766 goto fail;
767
80876c20
LP		 768 socket_set_state(s, SOCKET_START_PRE);
769 } else
034c6ed7
LP		 770 socket_enter_start_post(s);
771
772 return;
773
774fail:
9e2f7c11 775 log_warning("%s failed to run start-pre exectuable: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 776 socket_enter_dead(s, false);
777}
778
4f2d528d 779static void socket_enter_running(Socket *s, int cfd) {
034c6ed7
LP		 780 int r;
781
782 assert(s);
783
4f2d528d
LP		 784 if (cfd < 0) {
785 if ((r = manager_add_job(UNIT(s)->meta.manager, JOB_START, UNIT(s->service), JOB_REPLACE, true, NULL)) < 0)
786 goto fail;
787
788 socket_set_state(s, SOCKET_RUNNING);
789 } else {
790 Unit *u;
791 char *prefix, *instance, *name;
792
793 if ((r = instance_from_socket(cfd, s->n_accepted++, &instance)))
794 goto fail;
795
796 if (!(prefix = unit_name_to_prefix(UNIT(s)->meta.id))) {
797 free(instance);
798 r = -ENOMEM;
799 goto fail;
800 }
801
802 name = unit_name_build(prefix, instance, ".service");
803 free(prefix);
804 free(instance);
805
806 if (!name)
807 r = -ENOMEM;
808
809 r = manager_load_unit(UNIT(s)->meta.manager, name, NULL, &u);
810 free(name);
811
812 if (r < 0)
813 goto fail;
814
815 if ((r = service_set_socket_fd(SERVICE(u), cfd) < 0))
816 goto fail;
817
818 cfd = -1;
819
820 if ((r = manager_add_job(u->meta.manager, JOB_START, u, JOB_REPLACE, true, NULL)) < 0)
821 goto fail;
822 }
034c6ed7 823
034c6ed7
LP		 824 return;
825
826fail:
9e2f7c11 827 log_warning("%s failed to queue socket startup job: %s", s->meta.id, strerror(-r));
80876c20 828 socket_enter_stop_pre(s, false);
4f2d528d
LP		 829
830 if (cfd >= 0)
831 close_nointr_nofail(cfd);
034c6ed7
LP		 832}
833
834static void socket_run_next(Socket *s, bool success) {
835 int r;
836
837 assert(s);
838 assert(s->control_command);
839 assert(s->control_command->command_next);
840
841 if (!success)
842 s->failure = true;
843
5e94833f
LP		 844 socket_unwatch_control_pid(s);
845
034c6ed7
LP		 846 s->control_command = s->control_command->command_next;
847
e537352b 848 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
034c6ed7
LP		 849 goto fail;
850
851 return;
852
853fail:
9e2f7c11 854 log_warning("%s failed to run spawn next executable: %s", s->meta.id, strerror(-r));
80876c20
LP		 855
856 if (s->state == SOCKET_START_POST)
857 socket_enter_stop_pre(s, false);
034c6ed7
LP		 858 else if (s->state == SOCKET_STOP_POST)
859 socket_enter_dead(s, false);
860 else
80876c20 861 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
034c6ed7
LP		 862}
863
87f0e418
LP		 864static int socket_start(Unit *u) {
865 Socket *s = SOCKET(u);
83c60c9f
LP		 866
867 assert(s);
868
034c6ed7
LP		 869 /* We cannot fulfill this request right now, try again later
870 * please! */
871 if (s->state == SOCKET_STOP_PRE ||
872 s->state == SOCKET_STOP_PRE_SIGKILL ||
873 s->state == SOCKET_STOP_PRE_SIGTERM ||
874 s->state == SOCKET_STOP_POST ||
80876c20
LP		 875 s->state == SOCKET_FINAL_SIGTERM ||
876 s->state == SOCKET_FINAL_SIGKILL)
034c6ed7
LP		 877 return -EAGAIN;
878
83c60c9f
LP		 879 if (s->state == SOCKET_START_PRE ||
880 s->state == SOCKET_START_POST)
034c6ed7 881 return 0;
83c60c9f 882
034c6ed7 883 /* Cannot run this without the service being around */
4f2d528d
LP		 884 if (s->service) {
885 if (s->service->meta.load_state != UNIT_LOADED)
886 return -ENOENT;
887
888 /* If the service is alredy actvie we cannot start the
889 * socket */
890 if (s->service->state != SERVICE_DEAD &&
891 s->service->state != SERVICE_MAINTAINANCE &&
892 s->service->state != SERVICE_AUTO_RESTART)
893 return -EBUSY;
894 }
e537352b 895
034c6ed7 896 assert(s->state == SOCKET_DEAD || s->state == SOCKET_MAINTAINANCE);
83c60c9f 897
034c6ed7
LP		 898 s->failure = false;
899 socket_enter_start_pre(s);
900 return 0;
901}
83c60c9f 902
87f0e418
LP		 903static int socket_stop(Unit *u) {
904 Socket *s = SOCKET(u);
034c6ed7
LP		 905
906 assert(s);
907
908 /* We cannot fulfill this request right now, try again later
909 * please! */
910 if (s->state == SOCKET_START_PRE ||
911 s->state == SOCKET_START_POST)
912 return -EAGAIN;
83c60c9f 913
e537352b
LP		 914 /* Already on it */
915 if (s->state == SOCKET_STOP_PRE ||
916 s->state == SOCKET_STOP_PRE_SIGTERM ||
917 s->state == SOCKET_STOP_PRE_SIGKILL ||
918 s->state == SOCKET_STOP_POST ||
80876c20
LP		 919 s->state == SOCKET_FINAL_SIGTERM ||
920 s->state == SOCKET_FINAL_SIGTERM)
e537352b
LP		 921 return 0;
922
034c6ed7 923 assert(s->state == SOCKET_LISTENING || s->state == SOCKET_RUNNING);
83c60c9f 924
034c6ed7 925 socket_enter_stop_pre(s, true);
542563ba
LP		 926 return 0;
927}
928
a16e1123
LP		 929static int socket_serialize(Unit *u, FILE *f, FDSet *fds) {
930 Socket *s = SOCKET(u);
931 SocketPort *p;
932 int r;
933
934 assert(u);
935 assert(f);
936 assert(fds);
937
938 unit_serialize_item(u, f, "state", socket_state_to_string(s->state));
939 unit_serialize_item(u, f, "failure", yes_no(s->failure));
940 unit_serialize_item_format(u, f, "n-accepted", "%u", s->n_accepted);
941
942 if (s->control_pid > 0)
943 unit_serialize_item_format(u, f, "control-pid", "%u", (unsigned) s->control_pid);
944
945 if (s->control_command_id >= 0)
946 unit_serialize_item(u, f, "control-command", socket_exec_command_to_string(s->control_command_id));
947
948 LIST_FOREACH(port, p, s->ports) {
949 int copy;
950
951 if (p->fd < 0)
952 continue;
953
954 if ((copy = fdset_put_dup(fds, p->fd)) < 0)
955 return copy;
956
957 if (p->type == SOCKET_SOCKET) {
958 char *t;
959
960 if ((r = socket_address_print(&p->address, &t)) < 0)
961 return r;
962
963 unit_serialize_item_format(u, f, "socket", "%i %s", copy, t);
964 free(t);
965 } else {
966 assert(p->type == SOCKET_FIFO);
967 unit_serialize_item_format(u, f, "fifo", "%i %s", copy, p->path);
968 }
969 }
970
971 return 0;
972}
973
974static int socket_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
975 Socket *s = SOCKET(u);
976 int r;
977
978 assert(u);
979 assert(key);
980 assert(value);
981 assert(fds);
982
983 if (streq(key, "state")) {
984 SocketState state;
985
986 if ((state = socket_state_from_string(value)) < 0)
987 log_debug("Failed to parse state value %s", value);
988 else
989 s->deserialized_state = state;
990 } else if (streq(key, "failure")) {
991 int b;
992
993 if ((b = parse_boolean(value)) < 0)
994 log_debug("Failed to parse failure value %s", value);
995 else
996 s->failure = b || s->failure;
997
998 } else if (streq(key, "n-accepted")) {
999 unsigned k;
1000
1001 if ((r = safe_atou(value, &k)) < 0)
1002 log_debug("Failed to parse n-accepted value %s", value);
1003 else
1004 s->n_accepted += k;
1005 } else if (streq(key, "control-pid")) {
1006 unsigned pid;
1007
1008 if ((r = safe_atou(value, &pid)) < 0 || pid <= 0)
1009 log_debug("Failed to parse control-pid value %s", value);
1010 else
1011 s->control_pid = (pid_t) pid;
1012 } else if (streq(key, "control-command")) {
1013 SocketExecCommand id;
1014
1015 if ((id = socket_exec_command_from_string(value)) < 0)
1016 log_debug("Failed to parse exec-command value %s", value);
1017 else {
1018 s->control_command_id = id;
1019 s->control_command = s->exec_command[id];
1020 }
1021 } else if (streq(key, "fifo")) {
1022 int fd, skip = 0;
1023 SocketPort *p;
1024
1025 if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
1026 log_debug("Failed to parse fifo value %s", value);
1027 else {
1028
1029 LIST_FOREACH(port, p, s->ports)
1030 if (streq(p->path, value+skip))
1031 break;
1032
1033 if (p) {
1034 if (p->fd >= 0)
1035 close_nointr_nofail(p->fd);
1036 p->fd = fdset_remove(fds, fd);
1037 }
1038 }
1039
1040 } else if (streq(key, "socket")) {
1041 int fd, skip = 0;
1042 SocketPort *p;
1043
1044 if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
1045 log_debug("Failed to parse socket value %s", value);
1046 else {
1047
1048 LIST_FOREACH(port, p, s->ports)
1049 if (socket_address_is(&p->address, value+skip))
1050 break;
1051
1052 if (p) {
1053 if (p->fd >= 0)
1054 close_nointr_nofail(p->fd);
1055 p->fd = fdset_remove(fds, fd);
1056 }
1057 }
1058
1059 } else
1060 log_debug("Unknown serialization key '%s'", key);
1061
1062 return 0;
1063}
1064
87f0e418
LP		 1065static UnitActiveState socket_active_state(Unit *u) {
1066 assert(u);
5cb5a6ff 1067
acbb0225 1068 return state_translation_table[SOCKET(u)->state];
5cb5a6ff
LP		 1069}
1070
10a94420
LP		 1071static const char *socket_sub_state_to_string(Unit *u) {
1072 assert(u);
1073
a16e1123 1074 return socket_state_to_string(SOCKET(u)->state);
10a94420
LP		 1075}
1076
acbb0225 1077static void socket_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
87f0e418 1078 Socket *s = SOCKET(u);
4f2d528d 1079 int cfd = -1;
9152c765 1080
034c6ed7 1081 assert(s);
8d567588 1082 assert(fd >= 0);
9152c765 1083
9e2f7c11 1084 log_debug("Incoming traffic on %s", u->meta.id);
9152c765 1085
4f2d528d
LP		 1086 if (events != EPOLLIN) {
1087 log_error("Got invalid poll event on socket.");
8d567588 1088 goto fail;
4f2d528d
LP		 1089 }
1090
1091 if (w->data.socket_accept) {
1092 for (;;) {
1093
1094 if ((cfd = accept4(fd, NULL, NULL, SOCK_NONBLOCK)) < 0) {
1095
1096 if (errno == EINTR)
1097 continue;
1098
1099 log_error("Failed to accept socket: %m");
8d567588 1100 goto fail;
4f2d528d
LP		 1101 }
1102
1103 break;
1104 }
1105 }
9152c765 1106
a16e1123 1107 log_debug("cfd=%i", cfd);
4f2d528d 1108 socket_enter_running(s, cfd);
8d567588
LP		 1109 return;
1110
1111fail:
1112 socket_enter_stop_pre(s, false);
9152c765
LP		 1113}
1114
87f0e418
LP		 1115static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) {
1116 Socket *s = SOCKET(u);
034c6ed7 1117 bool success;
5cb5a6ff
LP		 1118
1119 assert(s);
034c6ed7 1120 assert(pid >= 0);
5cb5a6ff 1121
bd982a8b 1122 success = code == CLD_EXITED && status == 0;
034c6ed7 1123 s->failure = s->failure || !success;
542563ba 1124
034c6ed7 1125 assert(s->control_pid == pid);
034c6ed7
LP		 1126 s->control_pid = 0;
1127
a16e1123
LP		 1128 if (s->control_command)
1129 exec_status_fill(&s->control_command->exec_status, pid, code, status);
1130
9e2f7c11 1131 log_debug("%s control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
034c6ed7 1132
a16e1123
LP		 1133 if (s->control_command && s->control_command->command_next && success) {
1134 log_debug("%s running next command for state %s", u->meta.id, socket_state_to_string(s->state));
034c6ed7 1135 socket_run_next(s, success);
acbb0225 1136 } else {
a16e1123
LP		 1137 s->control_command = NULL;
1138 s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID;
1139
034c6ed7
LP		 1140 /* No further commands for this step, so let's figure
1141 * out what to do next */
5cb5a6ff 1142
a16e1123 1143 log_debug("%s got final SIGCHLD for state %s", u->meta.id, socket_state_to_string(s->state));
acbb0225 1144
034c6ed7
LP		 1145 switch (s->state) {
1146
1147 case SOCKET_START_PRE:
1148 if (success)
acbb0225 1149 socket_enter_start_post(s);
034c6ed7 1150 else
80876c20 1151 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
034c6ed7
LP		 1152 break;
1153
1154 case SOCKET_START_POST:
1155 if (success)
e9af15c3 1156 socket_enter_listening(s);
034c6ed7
LP		 1157 else
1158 socket_enter_stop_pre(s, false);
1159 break;
1160
1161 case SOCKET_STOP_PRE:
1162 case SOCKET_STOP_PRE_SIGTERM:
1163 case SOCKET_STOP_PRE_SIGKILL:
1164 socket_enter_stop_post(s, success);
1165 break;
1166
1167 case SOCKET_STOP_POST:
80876c20
LP		 1168 case SOCKET_FINAL_SIGTERM:
1169 case SOCKET_FINAL_SIGKILL:
034c6ed7
LP		 1170 socket_enter_dead(s, success);
1171 break;
1172
1173 default:
1174 assert_not_reached("Uh, control process died at wrong time.");
1175 }
1176 }
1177}
5cb5a6ff 1178
acbb0225 1179static void socket_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
87f0e418 1180 Socket *s = SOCKET(u);
5cb5a6ff 1181
034c6ed7
LP		 1182 assert(s);
1183 assert(elapsed == 1);
acbb0225 1184 assert(w == &s->timer_watch);
034c6ed7
LP		 1185
1186 switch (s->state) {
1187
1188 case SOCKET_START_PRE:
9e2f7c11 1189 log_warning("%s starting timed out. Terminating.", u->meta.id);
80876c20
LP		 1190 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
1191
034c6ed7 1192 case SOCKET_START_POST:
9e2f7c11 1193 log_warning("%s starting timed out. Stopping.", u->meta.id);
034c6ed7
LP		 1194 socket_enter_stop_pre(s, false);
1195 break;
1196
1197 case SOCKET_STOP_PRE:
9e2f7c11 1198 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 1199 socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, false);
1200 break;
1201
1202 case SOCKET_STOP_PRE_SIGTERM:
9e2f7c11 1203 log_warning("%s stopping timed out. Killing.", u->meta.id);
034c6ed7
LP		 1204 socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, false);
1205 break;
1206
1207 case SOCKET_STOP_PRE_SIGKILL:
9e2f7c11 1208 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 1209 socket_enter_stop_post(s, false);
1210 break;
1211
1212 case SOCKET_STOP_POST:
9e2f7c11 1213 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
80876c20 1214 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
034c6ed7
LP		 1215 break;
1216
80876c20 1217 case SOCKET_FINAL_SIGTERM:
9e2f7c11 1218 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
80876c20 1219 socket_enter_signal(s, SOCKET_FINAL_SIGKILL, false);
034c6ed7
LP		 1220 break;
1221
80876c20 1222 case SOCKET_FINAL_SIGKILL:
9e2f7c11 1223 log_warning("%s still around after SIGKILL (2). Entering maintainance mode.", u->meta.id);
034c6ed7
LP		 1224 socket_enter_dead(s, false);
1225 break;
1226
1227 default:
1228 assert_not_reached("Timeout at wrong time.");
1229 }
5cb5a6ff
LP		 1230}
1231
44d8db9e
LP		 1232int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds) {
1233 int *rfds;
1234 unsigned rn_fds, k;
1235 SocketPort *p;
1236
1237 assert(s);
1238 assert(fds);
1239 assert(n_fds);
1240
1241 /* Called from the service code for requesting our fds */
1242
1243 rn_fds = 0;
1244 LIST_FOREACH(port, p, s->ports)
1245 if (p->fd >= 0)
1246 rn_fds++;
1247
1248 if (!(rfds = new(int, rn_fds)) < 0)
1249 return -ENOMEM;
1250
1251 k = 0;
1252 LIST_FOREACH(port, p, s->ports)
1253 if (p->fd >= 0)
1254 rfds[k++] = p->fd;
1255
1256 assert(k == rn_fds);
1257
1258 *fds = rfds;
1259 *n_fds = rn_fds;
1260
1261 return 0;
1262}
1263
ceee3d82
LP		 1264void socket_notify_service_dead(Socket *s) {
1265 assert(s);
1266
1267 /* The service is dead. Dang. */
1268
1269 if (s->state == SOCKET_RUNNING) {
9e2f7c11 1270 log_debug("%s got notified about service death.", s->meta.id);
ceee3d82
LP		 1271 socket_enter_listening(s);
1272 }
1273}
1274
a16e1123
LP		 1275static const char* const socket_state_table[_SOCKET_STATE_MAX] = {
1276 [SOCKET_DEAD] = "dead",
1277 [SOCKET_START_PRE] = "start-pre",
1278 [SOCKET_START_POST] = "start-post",
1279 [SOCKET_LISTENING] = "listening",
1280 [SOCKET_RUNNING] = "running",
1281 [SOCKET_STOP_PRE] = "stop-pre",
1282 [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm",
1283 [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill",
1284 [SOCKET_STOP_POST] = "stop-post",
1285 [SOCKET_FINAL_SIGTERM] = "final-sigterm",
1286 [SOCKET_FINAL_SIGKILL] = "final-sigkill",
1287 [SOCKET_MAINTAINANCE] = "maintainance"
1288};
1289
1290DEFINE_STRING_TABLE_LOOKUP(socket_state, SocketState);
1291
1292static const char* const socket_exec_command_table[_SOCKET_EXEC_COMMAND_MAX] = {
1293 [SOCKET_EXEC_START_PRE] = "StartPre",
1294 [SOCKET_EXEC_START_POST] = "StartPost",
1295 [SOCKET_EXEC_STOP_PRE] = "StopPre",
1296 [SOCKET_EXEC_STOP_POST] = "StopPost"
1297};
1298
1299DEFINE_STRING_TABLE_LOOKUP(socket_exec_command, SocketExecCommand);
1300
87f0e418 1301const UnitVTable socket_vtable = {
5cb5a6ff
LP		 1302 .suffix = ".socket",
1303
034c6ed7
LP		 1304 .init = socket_init,
1305 .done = socket_done,
a16e1123
LP		 1306 .load = socket_load,
1307
1308 .coldplug = socket_coldplug,
034c6ed7 1309
5cb5a6ff
LP		 1310 .dump = socket_dump,
1311
542563ba
LP		 1312 .start = socket_start,
1313 .stop = socket_stop,
5cb5a6ff 1314
a16e1123
LP		 1315 .serialize = socket_serialize,
1316 .deserialize_item = socket_deserialize_item,
1317
5cb5a6ff 1318 .active_state = socket_active_state,
10a94420 1319 .sub_state_to_string = socket_sub_state_to_string,
5cb5a6ff 1320
9152c765 1321 .fd_event = socket_fd_event,
034c6ed7 1322 .sigchld_event = socket_sigchld_event,
4139c1b2
LP		 1323 .timer_event = socket_timer_event,
1324
1325 .bus_message_handler = bus_socket_message_handler
5cb5a6ff 1326};
Michael's branch of systemd.