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socket: guarantee order in which sockets are passed to be the one of the configuratio...
[thirdparty/systemd.git] / src / socket.c
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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
5cb5a6ff 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"
cebf8b20 33#include "netinet/tcp.h"
83c60c9f 34#include "log.h"
23a177ef
LP		 35#include "load-dropin.h"
36#include "load-fragment.h"
9e2f7c11 37#include "strv.h"
4f2d528d 38#include "unit-name.h"
4139c1b2 39#include "dbus-socket.h"
4fd5948e 40#include "missing.h"
a40eb732 41#include "special.h"
398ef8ba 42#include "bus-errors.h"
e51bc1a2 43#include "label.h"
9a57c629 44#include "exit-status.h"
f6a6225e 45#include "def.h"
83c60c9f 46
acbb0225 47static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = {
87f0e418
LP		 48 [SOCKET_DEAD] = UNIT_INACTIVE,
49 [SOCKET_START_PRE] = UNIT_ACTIVATING,
50 [SOCKET_START_POST] = UNIT_ACTIVATING,
51 [SOCKET_LISTENING] = UNIT_ACTIVE,
52 [SOCKET_RUNNING] = UNIT_ACTIVE,
53 [SOCKET_STOP_PRE] = UNIT_DEACTIVATING,
54 [SOCKET_STOP_PRE_SIGTERM] = UNIT_DEACTIVATING,
55 [SOCKET_STOP_PRE_SIGKILL] = UNIT_DEACTIVATING,
56 [SOCKET_STOP_POST] = UNIT_DEACTIVATING,
80876c20
LP		 57 [SOCKET_FINAL_SIGTERM] = UNIT_DEACTIVATING,
58 [SOCKET_FINAL_SIGKILL] = UNIT_DEACTIVATING,
fdf20a31 59 [SOCKET_FAILED] = UNIT_FAILED
83c60c9f 60};
5cb5a6ff 61
a16e1123
LP		 62static void socket_init(Unit *u) {
63 Socket *s = SOCKET(u);
64
65 assert(u);
66 assert(u->meta.load_state == UNIT_STUB);
67
a16e1123
LP		 68 s->backlog = SOMAXCONN;
69 s->timeout_usec = DEFAULT_TIMEOUT_USEC;
70 s->directory_mode = 0755;
973bcd30 71 s->socket_mode = 0777;
a16e1123 72
6cf6bbc2
LP		 73 s->max_connections = 64;
74
4fd5948e 75 s->priority = -1;
4fd5948e
LP		 76 s->ip_tos = -1;
77 s->ip_ttl = -1;
4fd5948e 78 s->mark = -1;
4fd5948e 79
a16e1123 80 exec_context_init(&s->exec_context);
0a494f1f
LP		 81 s->exec_context.std_output = u->meta.manager->default_std_output;
82 s->exec_context.std_error = u->meta.manager->default_std_error;
a16e1123
LP		 83
84 s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID;
85}
acbb0225 86
5e94833f
LP		 87static void socket_unwatch_control_pid(Socket *s) {
88 assert(s);
89
90 if (s->control_pid <= 0)
91 return;
92
93 unit_unwatch_pid(UNIT(s), s->control_pid);
94 s->control_pid = 0;
95}
96
87f0e418
LP		 97static void socket_done(Unit *u) {
98 Socket *s = SOCKET(u);
034c6ed7 99 SocketPort *p;
6cf6bbc2 100 Meta *i;
034c6ed7
LP		 101
102 assert(s);
103
104 while ((p = s->ports)) {
105 LIST_REMOVE(SocketPort, port, s->ports, p);
106
a16e1123
LP		 107 if (p->fd >= 0) {
108 unit_unwatch_fd(UNIT(s), &p->fd_watch);
109 close_nointr_nofail(p->fd);
110 }
111
034c6ed7
LP		 112 free(p->path);
113 free(p);
114 }
115
116 exec_context_done(&s->exec_context);
e537352b 117 exec_command_free_array(s->exec_command, _SOCKET_EXEC_COMMAND_MAX);
034c6ed7
LP		 118 s->control_command = NULL;
119
5e94833f 120 socket_unwatch_control_pid(s);
034c6ed7
LP		 121
122 s->service = NULL;
123
cebf8b20
TT		 124 free(s->tcp_congestion);
125 s->tcp_congestion = NULL;
126
acbb0225 127 free(s->bind_to_device);
e537352b 128 s->bind_to_device = NULL;
acbb0225
LP		 129
130 unit_unwatch_timer(u, &s->timer_watch);
6cf6bbc2
LP		 131
132 /* Make sure no service instance refers to us anymore. */
133 LIST_FOREACH(units_per_type, i, u->meta.manager->units_per_type[UNIT_SERVICE]) {
134 Service *service = (Service *) i;
135
f976f3f6
LP		 136 if (service->accept_socket == s)
137 service->accept_socket = NULL;
138
139 set_remove(service->configured_sockets, s);
6cf6bbc2 140 }
5cb5a6ff
LP		 141}
142
b15bdda8
LP		 143static int socket_instantiate_service(Socket *s) {
144 char *prefix, *name;
145 int r;
146 Unit *u;
147
148 assert(s);
149
150 /* This fills in s->service if it isn't filled in yet. For
151 * Accept=yes sockets we create the next connection service
152 * here. For Accept=no this is mostly a NOP since the service
153 * is figured out at load time anyway. */
154
155 if (s->service)
156 return 0;
157
158 assert(s->accept);
159
160 if (!(prefix = unit_name_to_prefix(s->meta.id)))
161 return -ENOMEM;
162
163 r = asprintf(&name, "%s@%u.service", prefix, s->n_accepted);
164 free(prefix);
165
166 if (r < 0)
167 return -ENOMEM;
168
169 r = manager_load_unit(s->meta.manager, name, NULL, NULL, &u);
170 free(name);
171
172 if (r < 0)
173 return r;
174
7b4bf06b
LP		 175#ifdef HAVE_SYSV_COMPAT
176 if (SERVICE(u)->sysv_path) {
177 log_error("Using SysV services for socket activation is not supported. Refusing.");
178 return -ENOENT;
179 }
180#endif
181
6c073082 182 u->meta.no_gc = true;
b15bdda8
LP		 183 s->service = SERVICE(u);
184 return 0;
185}
186
4f2d528d
LP		 187static bool have_non_accept_socket(Socket *s) {
188 SocketPort *p;
189
190 assert(s);
191
192 if (!s->accept)
193 return true;
194
dd5ad9d4
LP		 195 LIST_FOREACH(port, p, s->ports) {
196
197 if (p->type != SOCKET_SOCKET)
198 return true;
199
4f2d528d
LP		 200 if (!socket_address_can_accept(&p->address))
201 return true;
dd5ad9d4 202 }
4f2d528d
LP		 203
204 return false;
205}
206
207static int socket_verify(Socket *s) {
208 assert(s);
209
4cd1fbcc 210 if (s->meta.load_state != UNIT_LOADED)
4f2d528d
LP		 211 return 0;
212
213 if (!s->ports) {
4cd1fbcc 214 log_error("%s lacks Listen setting. Refusing.", s->meta.id);
4f2d528d
LP		 215 return -EINVAL;
216 }
217
0009d2a6
LP		 218 if (s->accept && have_non_accept_socket(s)) {
219 log_error("%s configured for accepting sockets, but sockets are non-accepting. Refusing.", s->meta.id);
220 return -EINVAL;
221 }
222
6cf6bbc2 223 if (s->accept && s->max_connections <= 0) {
4d0e5dbd
LP		 224 log_error("%s's MaxConnection setting too small. Refusing.", s->meta.id);
225 return -EINVAL;
226 }
227
d9ff321a
LP		 228 if (s->accept && s->service) {
229 log_error("Explicit service configuration for accepting sockets not supported on %s. Refusing.", s->meta.id);
230 return -EINVAL;
231 }
232
2e22afe9 233 if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
4d0e5dbd 234 log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
6cf6bbc2
LP		 235 return -EINVAL;
236 }
237
4f2d528d
LP		 238 return 0;
239}
240
6e2ef85b
LP		 241static bool socket_needs_mount(Socket *s, const char *prefix) {
242 SocketPort *p;
243
244 assert(s);
245
246 LIST_FOREACH(port, p, s->ports) {
247
248 if (p->type == SOCKET_SOCKET) {
249 if (socket_address_needs_mount(&p->address, prefix))
250 return true;
251 } else {
252 assert(p->type == SOCKET_FIFO);
253 if (path_startswith(p->path, prefix))
254 return true;
255 }
256 }
257
258 return false;
259}
260
261int socket_add_one_mount_link(Socket *s, Mount *m) {
262 int r;
263
264 assert(s);
265 assert(m);
266
267 if (s->meta.load_state != UNIT_LOADED ||
268 m->meta.load_state != UNIT_LOADED)
269 return 0;
270
271 if (!socket_needs_mount(s, m->where))
272 return 0;
273
2c966c03 274 if ((r = unit_add_two_dependencies(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, UNIT(m), true)) < 0)
6e2ef85b
LP		 275 return r;
276
277 return 0;
278}
279
280static int socket_add_mount_links(Socket *s) {
281 Meta *other;
282 int r;
283
284 assert(s);
285
286 LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_MOUNT])
287 if ((r = socket_add_one_mount_link(s, (Mount*) other)) < 0)
288 return r;
289
290 return 0;
291}
292
293static int socket_add_device_link(Socket *s) {
294 char *t;
295 int r;
296
297 assert(s);
298
299 if (!s->bind_to_device)
300 return 0;
301
302 if (asprintf(&t, "/sys/subsystem/net/devices/%s", s->bind_to_device) < 0)
303 return -ENOMEM;
304
305 r = unit_add_node_link(UNIT(s), t, false);
306 free(t);
307
308 return r;
309}
310
a40eb732
LP		 311static int socket_add_default_dependencies(Socket *s) {
312 int r;
313 assert(s);
314
2a77d31d
LP		 315 if (s->meta.manager->running_as == MANAGER_SYSTEM) {
316 if ((r = unit_add_dependency_by_name(UNIT(s), UNIT_BEFORE, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
317 return r;
318
a40eb732
LP		 319 if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true)) < 0)
320 return r;
2a77d31d 321 }
a40eb732 322
ead8e478 323 return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
a40eb732
LP		 324}
325
e537352b
LP		 326static int socket_load(Unit *u) {
327 Socket *s = SOCKET(u);
328 int r;
44d8db9e 329
e537352b
LP		 330 assert(u);
331 assert(u->meta.load_state == UNIT_STUB);
44d8db9e 332
e537352b 333 if ((r = unit_load_fragment_and_dropin(u)) < 0)
23a177ef 334 return r;
44d8db9e 335
23a177ef 336 /* This is a new unit? Then let's add in some extras */
e537352b 337 if (u->meta.load_state == UNIT_LOADED) {
44d8db9e 338
4f2d528d 339 if (have_non_accept_socket(s)) {
d9ff321a
LP		 340
341 if (!s->service)
342 if ((r = unit_load_related_unit(u, ".service", (Unit**) &s->service)) < 0)
343 return r;
23a177ef 344
701cc384 345 if ((r = unit_add_dependency(u, UNIT_BEFORE, UNIT(s->service), true)) < 0)
4f2d528d
LP		 346 return r;
347 }
44d8db9e 348
6e2ef85b
LP		 349 if ((r = socket_add_mount_links(s)) < 0)
350 return r;
351
352 if ((r = socket_add_device_link(s)) < 0)
353 return r;
354
23a177ef
LP		 355 if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
356 return r;
357
d686d8a9 358 if ((r = unit_add_default_cgroups(u)) < 0)
23a177ef 359 return r;
a40eb732
LP		 360
361 if (s->meta.default_dependencies)
362 if ((r = socket_add_default_dependencies(s)) < 0)
363 return r;
23a177ef
LP		 364 }
365
4f2d528d 366 return socket_verify(s);
44d8db9e
LP		 367}
368
7a22745a
LP		 369static const char* listen_lookup(int family, int type) {
370
371 if (family == AF_NETLINK)
372 return "ListenNetlink";
542563ba
LP		 373
374 if (type == SOCK_STREAM)
375 return "ListenStream";
376 else if (type == SOCK_DGRAM)
377 return "ListenDatagram";
378 else if (type == SOCK_SEQPACKET)
379 return "ListenSequentialPacket";
380
034c6ed7 381 assert_not_reached("Unknown socket type");
542563ba
LP		 382 return NULL;
383}
384
87f0e418 385static void socket_dump(Unit *u, FILE *f, const char *prefix) {
5cb5a6ff 386
5cb5a6ff 387 SocketExecCommand c;
87f0e418 388 Socket *s = SOCKET(u);
542563ba 389 SocketPort *p;
82ba9f08
LP		 390 const char *prefix2;
391 char *p2;
5cb5a6ff
LP		 392
393 assert(s);
fa068367 394 assert(f);
5cb5a6ff 395
82ba9f08
LP		 396 p2 = strappend(prefix, "\t");
397 prefix2 = p2 ? p2 : prefix;
c43d20a0 398
5cb5a6ff
LP		 399 fprintf(f,
400 "%sSocket State: %s\n"
542563ba 401 "%sBindIPv6Only: %s\n"
b5a0699f
LP		 402 "%sBacklog: %u\n"
403 "%sSocketMode: %04o\n"
4fd5948e
LP		 404 "%sDirectoryMode: %04o\n"
405 "%sKeepAlive: %s\n"
cebf8b20
TT		 406 "%sFreeBind: %s\n"
407 "%sTCPCongestion: %s\n",
a16e1123 408 prefix, socket_state_to_string(s->state),
c0120d99 409 prefix, socket_address_bind_ipv6_only_to_string(s->bind_ipv6_only),
b5a0699f
LP		 410 prefix, s->backlog,
411 prefix, s->socket_mode,
4fd5948e
LP		 412 prefix, s->directory_mode,
413 prefix, yes_no(s->keep_alive),
cebf8b20 414 prefix, yes_no(s->free_bind),
83a95334 415 prefix, strna(s->tcp_congestion));
542563ba 416
70123e68
LP		 417 if (s->control_pid > 0)
418 fprintf(f,
bb00e604
LP		 419 "%sControl PID: %lu\n",
420 prefix, (unsigned long) s->control_pid);
70123e68 421
acbb0225
LP		 422 if (s->bind_to_device)
423 fprintf(f,
424 "%sBindToDevice: %s\n",
425 prefix, s->bind_to_device);
426
4f2d528d
LP		 427 if (s->accept)
428 fprintf(f,
6cf6bbc2
LP		 429 "%sAccepted: %u\n"
430 "%sNConnections: %u\n"
431 "%sMaxConnections: %u\n",
432 prefix, s->n_accepted,
433 prefix, s->n_connections,
434 prefix, s->max_connections);
4f2d528d 435
4fd5948e
LP		 436 if (s->priority >= 0)
437 fprintf(f,
438 "%sPriority: %i\n",
439 prefix, s->priority);
440
441 if (s->receive_buffer > 0)
442 fprintf(f,
443 "%sReceiveBuffer: %zu\n",
444 prefix, s->receive_buffer);
445
446 if (s->send_buffer > 0)
447 fprintf(f,
448 "%sSendBuffer: %zu\n",
449 prefix, s->send_buffer);
450
451 if (s->ip_tos >= 0)
452 fprintf(f,
453 "%sIPTOS: %i\n",
454 prefix, s->ip_tos);
455
456 if (s->ip_ttl >= 0)
457 fprintf(f,
458 "%sIPTTL: %i\n",
459 prefix, s->ip_ttl);
460
461 if (s->pipe_size > 0)
462 fprintf(f,
463 "%sPipeSize: %zu\n",
464 prefix, s->pipe_size);
465
466 if (s->mark >= 0)
467 fprintf(f,
468 "%sMark: %i\n",
469 prefix, s->mark);
470
034c6ed7 471 LIST_FOREACH(port, p, s->ports) {
5cb5a6ff 472
542563ba
LP		 473 if (p->type == SOCKET_SOCKET) {
474 const char *t;
475 int r;
e364ad06 476 char *k = NULL;
542563ba
LP		 477
478 if ((r = socket_address_print(&p->address, &k)) < 0)
479 t = strerror(-r);
480 else
481 t = k;
482
7a22745a 483 fprintf(f, "%s%s: %s\n", prefix, listen_lookup(socket_address_family(&p->address), p->address.type), t);
542563ba
LP		 484 free(k);
485 } else
486 fprintf(f, "%sListenFIFO: %s\n", prefix, p->path);
487 }
5cb5a6ff
LP		 488
489 exec_context_dump(&s->exec_context, f, prefix);
490
e537352b 491 for (c = 0; c < _SOCKET_EXEC_COMMAND_MAX; c++) {
c43d20a0
LP		 492 if (!s->exec_command[c])
493 continue;
5cb5a6ff 494
40d50879 495 fprintf(f, "%s-> %s:\n",
a16e1123 496 prefix, socket_exec_command_to_string(c));
c43d20a0
LP		 497
498 exec_command_dump_list(s->exec_command[c], f, prefix2);
5cb5a6ff 499 }
c43d20a0 500
82ba9f08 501 free(p2);
5cb5a6ff
LP		 502}
503
4f2d528d
LP		 504static int instance_from_socket(int fd, unsigned nr, char **instance) {
505 socklen_t l;
506 char *r;
507 union {
508 struct sockaddr sa;
509 struct sockaddr_un un;
510 struct sockaddr_in in;
511 struct sockaddr_in6 in6;
512 struct sockaddr_storage storage;
513 } local, remote;
514
515 assert(fd >= 0);
516 assert(instance);
517
518 l = sizeof(local);
519 if (getsockname(fd, &local.sa, &l) < 0)
520 return -errno;
521
522 l = sizeof(remote);
523 if (getpeername(fd, &remote.sa, &l) < 0)
524 return -errno;
525
526 switch (local.sa.sa_family) {
527
528 case AF_INET: {
529 uint32_t
530 a = ntohl(local.in.sin_addr.s_addr),
531 b = ntohl(remote.in.sin_addr.s_addr);
532
533 if (asprintf(&r,
b15bdda8 534 "%u.%u.%u.%u:%u-%u.%u.%u.%u:%u",
4f2d528d
LP		 535 a >> 24, (a >> 16) & 0xFF, (a >> 8) & 0xFF, a & 0xFF,
536 ntohs(local.in.sin_port),
537 b >> 24, (b >> 16) & 0xFF, (b >> 8) & 0xFF, b & 0xFF,
538 ntohs(remote.in.sin_port)) < 0)
539 return -ENOMEM;
540
541 break;
542 }
543
544 case AF_INET6: {
2b061f5a
LP		 545 static const char ipv4_prefix[] = {
546 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF
547 };
548
549 if (memcmp(&local.in6.sin6_addr, ipv4_prefix, sizeof(ipv4_prefix)) == 0 &&
550 memcmp(&remote.in6.sin6_addr, ipv4_prefix, sizeof(ipv4_prefix)) == 0) {
551 const uint8_t
552 *a = local.in6.sin6_addr.s6_addr+12,
553 *b = remote.in6.sin6_addr.s6_addr+12;
554
555 if (asprintf(&r,
b15bdda8 556 "%u.%u.%u.%u:%u-%u.%u.%u.%u:%u",
2b061f5a
LP		 557 a[0], a[1], a[2], a[3],
558 ntohs(local.in6.sin6_port),
559 b[0], b[1], b[2], b[3],
560 ntohs(remote.in6.sin6_port)) < 0)
561 return -ENOMEM;
562 } else {
563 char a[INET6_ADDRSTRLEN], b[INET6_ADDRSTRLEN];
564
565 if (asprintf(&r,
b15bdda8 566 "%s:%u-%s:%u",
2b061f5a
LP		 567 inet_ntop(AF_INET6, &local.in6.sin6_addr, a, sizeof(a)),
568 ntohs(local.in6.sin6_port),
569 inet_ntop(AF_INET6, &remote.in6.sin6_addr, b, sizeof(b)),
570 ntohs(remote.in6.sin6_port)) < 0)
571 return -ENOMEM;
572 }
4f2d528d
LP		 573
574 break;
575 }
576
577 case AF_UNIX: {
578 struct ucred ucred;
579
580 l = sizeof(ucred);
581 if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &ucred, &l) < 0)
582 return -errno;
583
584 if (asprintf(&r,
bb00e604 585 "%u-%lu-%lu",
4f2d528d 586 nr,
bb00e604
LP		 587 (unsigned long) ucred.pid,
588 (unsigned long) ucred.uid) < 0)
4f2d528d
LP		 589 return -ENOMEM;
590
591 break;
592 }
593
594 default:
595 assert_not_reached("Unhandled socket type.");
596 }
597
598 *instance = r;
599 return 0;
600}
601
034c6ed7 602static void socket_close_fds(Socket *s) {
83c60c9f
LP		 603 SocketPort *p;
604
605 assert(s);
606
034c6ed7 607 LIST_FOREACH(port, p, s->ports) {
83c60c9f
LP		 608 if (p->fd < 0)
609 continue;
610
acbb0225 611 unit_unwatch_fd(UNIT(s), &p->fd_watch);
a16e1123
LP		 612 close_nointr_nofail(p->fd);
613
614 /* One little note: we should never delete any sockets
615 * in the file system here! After all some other
616 * process we spawned might still have a reference of
617 * this fd and wants to continue to use it. Therefore
618 * we delete sockets in the file system before we
619 * create a new one, not after we stopped using
620 * one! */
9152c765 621
83c60c9f
LP		 622 p->fd = -1;
623 }
624}
625
4fd5948e
LP		 626static void socket_apply_socket_options(Socket *s, int fd) {
627 assert(s);
628 assert(fd >= 0);
629
630 if (s->keep_alive) {
631 int b = s->keep_alive;
632 if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &b, sizeof(b)) < 0)
633 log_warning("SO_KEEPALIVE failed: %m");
634 }
635
636 if (s->priority >= 0)
637 if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &s->priority, sizeof(s->priority)) < 0)
638 log_warning("SO_PRIORITY failed: %m");
639
640 if (s->receive_buffer > 0) {
641 int value = (int) s->receive_buffer;
642 if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value)) < 0)
643 log_warning("SO_RCVBUF failed: %m");
644 }
645
646 if (s->send_buffer > 0) {
647 int value = (int) s->send_buffer;
648 if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, sizeof(value)) < 0)
649 log_warning("SO_SNDBUF failed: %m");
650 }
651
652 if (s->mark >= 0)
653 if (setsockopt(fd, SOL_SOCKET, SO_MARK, &s->mark, sizeof(s->mark)) < 0)
654 log_warning("SO_MARK failed: %m");
655
656 if (s->ip_tos >= 0)
657 if (setsockopt(fd, IPPROTO_IP, IP_TOS, &s->ip_tos, sizeof(s->ip_tos)) < 0)
658 log_warning("IP_TOS failed: %m");
659
46925ac5
LP		 660 if (s->ip_ttl >= 0) {
661 int r, x;
662
663 r = setsockopt(fd, IPPROTO_IP, IP_TTL, &s->ip_ttl, sizeof(s->ip_ttl));
5bfcc1c6
FF		 664
665 if (socket_ipv6_is_supported())
666 x = setsockopt(fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &s->ip_ttl, sizeof(s->ip_ttl));
667 else {
668 x = -1;
669 errno = EAFNOSUPPORT;
670 }
46925ac5
LP		 671
672 if (r < 0 && x < 0)
673 log_warning("IP_TTL/IPV6_UNICAST_HOPS failed: %m");
674 }
cebf8b20
TT		 675
676 if (s->tcp_congestion)
677 if (setsockopt(fd, SOL_TCP, TCP_CONGESTION, s->tcp_congestion, strlen(s->tcp_congestion)+1) < 0)
678 log_warning("TCP_CONGESTION failed: %m");
4fd5948e
LP		 679}
680
b15bdda8 681static void socket_apply_fifo_options(Socket *s, int fd) {
4fd5948e
LP		 682 assert(s);
683 assert(fd >= 0);
684
685 if (s->pipe_size > 0)
686 if (fcntl(fd, F_SETPIPE_SZ, s->pipe_size) < 0)
687 log_warning("F_SETPIPE_SZ: %m");
688}
689
7a58bfa4 690
b15bdda8
LP		 691static int fifo_address_create(
692 const char *path,
693 mode_t directory_mode,
694 mode_t socket_mode,
b15bdda8
LP		 695 int *_fd) {
696
7a58bfa4 697 int fd = -1, r = 0;
b15bdda8
LP		 698 struct stat st;
699 mode_t old_mask;
700
701 assert(path);
702 assert(_fd);
703
704 mkdir_parents(path, directory_mode);
705
c4e2ceae 706 if ((r = label_fifofile_set(path)) < 0)
56cf987f 707 goto fail;
b15bdda8
LP		 708
709 /* Enforce the right access mode for the fifo */
710 old_mask = umask(~ socket_mode);
711
712 /* Include the original umask in our mask */
713 umask(~socket_mode | old_mask);
714
715 r = mkfifo(path, socket_mode);
716 umask(old_mask);
717
718 if (r < 0) {
719 r = -errno;
720 goto fail;
721 }
722
723 if ((fd = open(path, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW)) < 0) {
724 r = -errno;
725 goto fail;
726 }
727
56cf987f 728 label_file_clear();
7a58bfa4 729
b15bdda8
LP		 730 if (fstat(fd, &st) < 0) {
731 r = -errno;
732 goto fail;
733 }
734
735 if (!S_ISFIFO(st.st_mode) ||
de0200fc 736 (st.st_mode & 0777) != (socket_mode & ~old_mask) ||
b15bdda8
LP		 737 st.st_uid != getuid() ||
738 st.st_gid != getgid()) {
739
740 r = -EEXIST;
741 goto fail;
742 }
743
744 *_fd = fd;
745 return 0;
746
747fail:
56cf987f
DW		 748 label_file_clear();
749
b15bdda8
LP		 750 if (fd >= 0)
751 close_nointr_nofail(fd);
752
753 return r;
754}
755
034c6ed7 756static int socket_open_fds(Socket *s) {
83c60c9f
LP		 757 SocketPort *p;
758 int r;
56cf987f 759 char *label = NULL;
049f8642 760 bool know_label = false;
83c60c9f
LP		 761
762 assert(s);
763
034c6ed7 764 LIST_FOREACH(port, p, s->ports) {
83c60c9f 765
034c6ed7
LP		 766 if (p->fd >= 0)
767 continue;
83c60c9f
LP		 768
769 if (p->type == SOCKET_SOCKET) {
770
049f8642
LP		 771 if (!know_label) {
772
773 if ((r = socket_instantiate_service(s)) < 0)
774 return r;
775
cae18e21 776 if (s->service && s->service->exec_command[SERVICE_EXEC_START])
a7444eda
LP		 777 if ((r = label_get_socket_label_from_exe(s->service->exec_command[SERVICE_EXEC_START]->path, &label)) < 0) {
778 if (r != -EPERM)
779 return r;
780 }
049f8642
LP		 781
782 know_label = true;
783 }
784
b5a0699f
LP		 785 if ((r = socket_address_listen(
786 &p->address,
787 s->backlog,
788 s->bind_ipv6_only,
789 s->bind_to_device,
4fd5948e 790 s->free_bind,
b5a0699f
LP		 791 s->directory_mode,
792 s->socket_mode,
56cf987f 793 label,
b5a0699f 794 &p->fd)) < 0)
83c60c9f
LP		 795 goto rollback;
796
4fd5948e
LP		 797 socket_apply_socket_options(s, p->fd);
798
b15bdda8 799 } else if (p->type == SOCKET_FIFO) {
83c60c9f 800
b15bdda8
LP		 801 if ((r = fifo_address_create(
802 p->path,
803 s->directory_mode,
804 s->socket_mode,
b15bdda8 805 &p->fd)) < 0)
83c60c9f 806 goto rollback;
83c60c9f 807
b15bdda8 808 socket_apply_fifo_options(s, p->fd);
83c60c9f 809
b15bdda8
LP		 810 } else
811 assert_not_reached("Unknown port type");
034c6ed7
LP		 812 }
813
56cf987f 814 label_free(label);
034c6ed7
LP		 815 return 0;
816
817rollback:
818 socket_close_fds(s);
56cf987f 819 label_free(label);
034c6ed7
LP		 820 return r;
821}
822
823static void socket_unwatch_fds(Socket *s) {
824 SocketPort *p;
9152c765 825
034c6ed7
LP		 826 assert(s);
827
828 LIST_FOREACH(port, p, s->ports) {
829 if (p->fd < 0)
830 continue;
831
acbb0225 832 unit_unwatch_fd(UNIT(s), &p->fd_watch);
83c60c9f 833 }
034c6ed7
LP		 834}
835
836static int socket_watch_fds(Socket *s) {
837 SocketPort *p;
838 int r;
839
840 assert(s);
83c60c9f 841
034c6ed7
LP		 842 LIST_FOREACH(port, p, s->ports) {
843 if (p->fd < 0)
844 continue;
845
cabab516 846 p->fd_watch.socket_accept =
4f2d528d 847 s->accept &&
dd5ad9d4 848 p->type == SOCKET_SOCKET &&
4f2d528d
LP		 849 socket_address_can_accept(&p->address);
850
f94ea366 851 if ((r = unit_watch_fd(UNIT(s), p->fd, EPOLLIN, &p->fd_watch)) < 0)
034c6ed7
LP		 852 goto fail;
853 }
83c60c9f 854
542563ba 855 return 0;
83c60c9f 856
034c6ed7
LP		 857fail:
858 socket_unwatch_fds(s);
859 return r;
860}
861
862static void socket_set_state(Socket *s, SocketState state) {
863 SocketState old_state;
864 assert(s);
865
866 old_state = s->state;
867 s->state = state;
868
869 if (state != SOCKET_START_PRE &&
870 state != SOCKET_START_POST &&
871 state != SOCKET_STOP_PRE &&
872 state != SOCKET_STOP_PRE_SIGTERM &&
873 state != SOCKET_STOP_PRE_SIGKILL &&
874 state != SOCKET_STOP_POST &&
80876c20
LP		 875 state != SOCKET_FINAL_SIGTERM &&
876 state != SOCKET_FINAL_SIGKILL) {
acbb0225 877 unit_unwatch_timer(UNIT(s), &s->timer_watch);
5e94833f 878 socket_unwatch_control_pid(s);
034c6ed7 879 s->control_command = NULL;
a16e1123 880 s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID;
e537352b 881 }
034c6ed7 882
a16e1123
LP		 883 if (state != SOCKET_LISTENING)
884 socket_unwatch_fds(s);
885
034c6ed7
LP		 886 if (state != SOCKET_START_POST &&
887 state != SOCKET_LISTENING &&
888 state != SOCKET_RUNNING &&
889 state != SOCKET_STOP_PRE &&
890 state != SOCKET_STOP_PRE_SIGTERM &&
891 state != SOCKET_STOP_PRE_SIGKILL)
892 socket_close_fds(s);
893
e537352b 894 if (state != old_state)
40d50879 895 log_debug("%s changed %s -> %s",
a16e1123
LP		 896 s->meta.id,
897 socket_state_to_string(old_state),
898 socket_state_to_string(state));
acbb0225 899
e2f3b44c 900 unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], true);
034c6ed7
LP		 901}
902
a16e1123
LP		 903static int socket_coldplug(Unit *u) {
904 Socket *s = SOCKET(u);
905 int r;
906
907 assert(s);
908 assert(s->state == SOCKET_DEAD);
909
910 if (s->deserialized_state != s->state) {
911
912 if (s->deserialized_state == SOCKET_START_PRE ||
913 s->deserialized_state == SOCKET_START_POST ||
914 s->deserialized_state == SOCKET_STOP_PRE ||
915 s->deserialized_state == SOCKET_STOP_PRE_SIGTERM ||
916 s->deserialized_state == SOCKET_STOP_PRE_SIGKILL ||
917 s->deserialized_state == SOCKET_STOP_POST ||
918 s->deserialized_state == SOCKET_FINAL_SIGTERM ||
919 s->deserialized_state == SOCKET_FINAL_SIGKILL) {
920
921 if (s->control_pid <= 0)
922 return -EBADMSG;
923
924 if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
925 return r;
926
927 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
928 return r;
929 }
930
931 if (s->deserialized_state == SOCKET_START_POST ||
932 s->deserialized_state == SOCKET_LISTENING ||
933 s->deserialized_state == SOCKET_RUNNING ||
934 s->deserialized_state == SOCKET_STOP_PRE ||
935 s->deserialized_state == SOCKET_STOP_PRE_SIGTERM ||
936 s->deserialized_state == SOCKET_STOP_PRE_SIGKILL)
937 if ((r = socket_open_fds(s)) < 0)
938 return r;
939
940 if (s->deserialized_state == SOCKET_LISTENING)
941 if ((r = socket_watch_fds(s)) < 0)
942 return r;
943
944 socket_set_state(s, s->deserialized_state);
945 }
946
947 return 0;
948}
949
e537352b 950static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) {
034c6ed7
LP		 951 pid_t pid;
952 int r;
9e2f7c11 953 char **argv;
034c6ed7
LP		 954
955 assert(s);
956 assert(c);
957 assert(_pid);
958
e537352b
LP		 959 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
960 goto fail;
034c6ed7 961
9e2f7c11
LP		 962 if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
963 r = -ENOMEM;
964 goto fail;
965 }
966
967 r = exec_spawn(c,
968 argv,
969 &s->exec_context,
970 NULL, 0,
1137a57c 971 s->meta.manager->environment,
9e2f7c11
LP		 972 true,
973 true,
1e3ad081 974 true,
4cd1fbcc
LP		 975 s->meta.manager->confirm_spawn,
976 s->meta.cgroup_bondings,
9e2f7c11
LP		 977 &pid);
978
979 strv_free(argv);
980 if (r < 0)
034c6ed7
LP		 981 goto fail;
982
87f0e418 983 if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
034c6ed7
LP		 984 /* FIXME: we need to do something here */
985 goto fail;
83c60c9f 986
034c6ed7
LP		 987 *_pid = pid;
988
989 return 0;
990
991fail:
e537352b 992 unit_unwatch_timer(UNIT(s), &s->timer_watch);
83c60c9f
LP		 993
994 return r;
542563ba
LP		 995}
996
034c6ed7
LP		 997static void socket_enter_dead(Socket *s, bool success) {
998 assert(s);
999
1000 if (!success)
1001 s->failure = true;
1002
fdf20a31 1003 socket_set_state(s, s->failure ? SOCKET_FAILED : SOCKET_DEAD);
034c6ed7
LP		 1004}
1005
80876c20
LP		 1006static void socket_enter_signal(Socket *s, SocketState state, bool success);
1007
034c6ed7
LP		 1008static void socket_enter_stop_post(Socket *s, bool success) {
1009 int r;
1010 assert(s);
1011
1012 if (!success)
1013 s->failure = true;
1014
5e94833f
LP		 1015 socket_unwatch_control_pid(s);
1016
a16e1123
LP		 1017 s->control_command_id = SOCKET_EXEC_STOP_POST;
1018
80876c20 1019 if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_POST])) {
e537352b 1020 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
034c6ed7
LP		 1021 goto fail;
1022
80876c20
LP		 1023 socket_set_state(s, SOCKET_STOP_POST);
1024 } else
1025 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, true);
034c6ed7
LP		 1026
1027 return;
1028
1029fail:
6cf6bbc2 1030 log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
80876c20 1031 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
034c6ed7
LP		 1032}
1033
1034static void socket_enter_signal(Socket *s, SocketState state, bool success) {
1035 int r;
ca949c9d
LP		 1036 Set *pid_set = NULL;
1037 bool wait_for_exit = false;
034c6ed7
LP		 1038
1039 assert(s);
1040
1041 if (!success)
1042 s->failure = true;
1043
2e22afe9
LP		 1044 if (s->exec_context.kill_mode != KILL_NONE) {
1045 int sig = (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
034c6ed7 1046
ca949c9d 1047 if (s->control_pid > 0) {
cd25cce9 1048 if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
50159e6a 1049
ca949c9d
LP		 1050 log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
1051 else
1052 wait_for_exit = true;
034c6ed7 1053 }
50159e6a 1054
ca949c9d
LP		 1055 if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
1056
1057 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
1058 r = -ENOMEM;
50159e6a
LP		 1059 goto fail;
1060 }
ca949c9d
LP		 1061
1062 /* Exclude the control pid from being killed via the cgroup */
1063 if (s->control_pid > 0)
1064 if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
1065 goto fail;
1066
430c18ed 1067 if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, true, pid_set)) < 0) {
ca949c9d
LP		 1068 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1069 log_warning("Failed to kill control group: %s", strerror(-r));
1070 } else if (r > 0)
1071 wait_for_exit = true;
1072
1073 set_free(pid_set);
da19d5c1 1074 pid_set = NULL;
ca949c9d 1075 }
d6ea93e3 1076 }
034c6ed7 1077
ca949c9d 1078 if (wait_for_exit) {
80876c20
LP		 1079 if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
1080 goto fail;
d6ea93e3 1081
80876c20
LP		 1082 socket_set_state(s, state);
1083 } else if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL)
1084 socket_enter_stop_post(s, true);
1085 else
034c6ed7
LP		 1086 socket_enter_dead(s, true);
1087
1088 return;
1089
1090fail:
9e2f7c11 1091 log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1092
1093 if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL)
1094 socket_enter_stop_post(s, false);
1095 else
1096 socket_enter_dead(s, false);
ca949c9d
LP		 1097
1098 if (pid_set)
1099 set_free(pid_set);
034c6ed7
LP		 1100}
1101
1102static void socket_enter_stop_pre(Socket *s, bool success) {
1103 int r;
1104 assert(s);
1105
1106 if (!success)
1107 s->failure = true;
1108
5e94833f
LP		 1109 socket_unwatch_control_pid(s);
1110
a16e1123
LP		 1111 s->control_command_id = SOCKET_EXEC_STOP_PRE;
1112
80876c20 1113 if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_PRE])) {
e537352b 1114 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
034c6ed7
LP		 1115 goto fail;
1116
80876c20
LP		 1117 socket_set_state(s, SOCKET_STOP_PRE);
1118 } else
034c6ed7
LP		 1119 socket_enter_stop_post(s, true);
1120
1121 return;
1122
1123fail:
6cf6bbc2 1124 log_warning("%s failed to run 'stop-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1125 socket_enter_stop_post(s, false);
1126}
1127
e9af15c3
LP		 1128static void socket_enter_listening(Socket *s) {
1129 int r;
1130 assert(s);
1131
1132 if ((r = socket_watch_fds(s)) < 0) {
9e2f7c11 1133 log_warning("%s failed to watch sockets: %s", s->meta.id, strerror(-r));
e9af15c3
LP		 1134 goto fail;
1135 }
1136
1137 socket_set_state(s, SOCKET_LISTENING);
1138 return;
1139
1140fail:
1141 socket_enter_stop_pre(s, false);
1142}
1143
034c6ed7
LP		 1144static void socket_enter_start_post(Socket *s) {
1145 int r;
1146 assert(s);
1147
e9af15c3 1148 if ((r = socket_open_fds(s)) < 0) {
9e2f7c11 1149 log_warning("%s failed to listen on sockets: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1150 goto fail;
1151 }
1152
5e94833f
LP		 1153 socket_unwatch_control_pid(s);
1154
a16e1123
LP		 1155 s->control_command_id = SOCKET_EXEC_START_POST;
1156
80876c20 1157 if ((s->control_command = s->exec_command[SOCKET_EXEC_START_POST])) {
e537352b 1158 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0) {
6cf6bbc2 1159 log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1160 goto fail;
1161 }
1162
80876c20
LP		 1163 socket_set_state(s, SOCKET_START_POST);
1164 } else
e9af15c3 1165 socket_enter_listening(s);
034c6ed7
LP		 1166
1167 return;
1168
1169fail:
1170 socket_enter_stop_pre(s, false);
1171}
1172
1173static void socket_enter_start_pre(Socket *s) {
1174 int r;
1175 assert(s);
1176
5e94833f
LP		 1177 socket_unwatch_control_pid(s);
1178
a16e1123
LP		 1179 s->control_command_id = SOCKET_EXEC_START_PRE;
1180
80876c20 1181 if ((s->control_command = s->exec_command[SOCKET_EXEC_START_PRE])) {
e537352b 1182 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
034c6ed7
LP		 1183 goto fail;
1184
80876c20
LP		 1185 socket_set_state(s, SOCKET_START_PRE);
1186 } else
034c6ed7
LP		 1187 socket_enter_start_post(s);
1188
1189 return;
1190
1191fail:
6cf6bbc2 1192 log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
034c6ed7
LP		 1193 socket_enter_dead(s, false);
1194}
1195
4f2d528d 1196static void socket_enter_running(Socket *s, int cfd) {
034c6ed7 1197 int r;
398ef8ba 1198 DBusError error;
034c6ed7
LP		 1199
1200 assert(s);
398ef8ba 1201 dbus_error_init(&error);
034c6ed7 1202
ba3e67a7
LP		 1203 /* We don't take connections anymore if we are supposed to
1204 * shut down anyway */
18ffdfda 1205 if (unit_pending_inactive(UNIT(s))) {
5d909e3e
LP		 1206 log_debug("Suppressing connection request on %s since unit stop is scheduled.", s->meta.id);
1207
7c610628
LP		 1208 if (cfd >= 0)
1209 close_nointr_nofail(cfd);
1210 else {
1211 /* Flush all sockets by closing and reopening them */
1212 socket_close_fds(s);
1213
1214 if ((r = socket_watch_fds(s)) < 0) {
1215 log_warning("%s failed to watch sockets: %s", s->meta.id, strerror(-r));
1216 socket_enter_stop_pre(s, false);
1217 }
1218 }
1219
ba3e67a7
LP		 1220 return;
1221 }
1222
4f2d528d 1223 if (cfd < 0) {
f976f3f6
LP		 1224 bool pending = false;
1225 Meta *i;
1226
1227 /* If there's already a start pending don't bother to
1228 * do anything */
1229 LIST_FOREACH(units_per_type, i, s->meta.manager->units_per_type[UNIT_SERVICE]) {
1230 Service *service = (Service *) i;
1231
1232 if (!set_get(service->configured_sockets, s))
1233 continue;
1234
1235 if (!unit_pending_active(UNIT(service)))
1236 continue;
1237
1238 pending = true;
1239 break;
1240 }
1241
1242 if (!pending)
1243 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s->service), JOB_REPLACE, true, &error, NULL)) < 0)
1244 goto fail;
4f2d528d
LP		 1245
1246 socket_set_state(s, SOCKET_RUNNING);
1247 } else {
b4f10a5e 1248 char *prefix, *instance = NULL, *name;
b15bdda8 1249 Service *service;
4f2d528d 1250
6cf6bbc2
LP		 1251 if (s->n_connections >= s->max_connections) {
1252 log_warning("Too many incoming connections (%u)", s->n_connections);
1253 close_nointr_nofail(cfd);
1254 return;
1255 }
1256
b15bdda8
LP		 1257 if ((r = socket_instantiate_service(s)) < 0)
1258 goto fail;
1259
1260 if ((r = instance_from_socket(cfd, s->n_accepted, &instance)) < 0)
4f2d528d
LP		 1261 goto fail;
1262
4cd1fbcc 1263 if (!(prefix = unit_name_to_prefix(s->meta.id))) {
4f2d528d
LP		 1264 free(instance);
1265 r = -ENOMEM;
1266 goto fail;
1267 }
1268
1269 name = unit_name_build(prefix, instance, ".service");
1270 free(prefix);
1271 free(instance);
1272
b6dbbe1c 1273 if (!name) {
4f2d528d 1274 r = -ENOMEM;
b6dbbe1c
LP		 1275 goto fail;
1276 }
4f2d528d 1277
b15bdda8
LP		 1278 if ((r = unit_add_name(UNIT(s->service), name)) < 0) {
1279 free(name);
4f2d528d 1280 goto fail;
b15bdda8
LP		 1281 }
1282
1283 service = s->service;
1284 s->service = NULL;
1285 s->n_accepted ++;
4f2d528d 1286
6c073082
LP		 1287 service->meta.no_gc = false;
1288
b15bdda8
LP		 1289 unit_choose_id(UNIT(service), name);
1290 free(name);
1291
1292 if ((r = service_set_socket_fd(service, cfd, s)) < 0)
4f2d528d
LP		 1293 goto fail;
1294
1295 cfd = -1;
6cf6bbc2
LP		 1296 s->n_connections ++;
1297
b15bdda8 1298 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(service), JOB_REPLACE, true, &error, NULL)) < 0)
4f2d528d 1299 goto fail;
c4e2ceae
LP		 1300
1301 /* Notify clients about changed counters */
1302 unit_add_to_dbus_queue(UNIT(s));
4f2d528d 1303 }
034c6ed7 1304
034c6ed7
LP		 1305 return;
1306
1307fail:
398ef8ba 1308 log_warning("%s failed to queue socket startup job: %s", s->meta.id, bus_error(&error, r));
80876c20 1309 socket_enter_stop_pre(s, false);
4f2d528d
LP		 1310
1311 if (cfd >= 0)
1312 close_nointr_nofail(cfd);
398ef8ba
LP		 1313
1314 dbus_error_free(&error);
034c6ed7
LP		 1315}
1316
1317static void socket_run_next(Socket *s, bool success) {
1318 int r;
1319
1320 assert(s);
1321 assert(s->control_command);
1322 assert(s->control_command->command_next);
1323
1324 if (!success)
1325 s->failure = true;
1326
5e94833f
LP		 1327 socket_unwatch_control_pid(s);
1328
034c6ed7
LP		 1329 s->control_command = s->control_command->command_next;
1330
e537352b 1331 if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
034c6ed7
LP		 1332 goto fail;
1333
1334 return;
1335
1336fail:
6cf6bbc2 1337 log_warning("%s failed to run next task: %s", s->meta.id, strerror(-r));
80876c20
LP		 1338
1339 if (s->state == SOCKET_START_POST)
1340 socket_enter_stop_pre(s, false);
034c6ed7
LP		 1341 else if (s->state == SOCKET_STOP_POST)
1342 socket_enter_dead(s, false);
1343 else
80876c20 1344 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
034c6ed7
LP		 1345}
1346
87f0e418
LP		 1347static int socket_start(Unit *u) {
1348 Socket *s = SOCKET(u);
83c60c9f
LP		 1349
1350 assert(s);
1351
034c6ed7
LP		 1352 /* We cannot fulfill this request right now, try again later
1353 * please! */
1354 if (s->state == SOCKET_STOP_PRE ||
1355 s->state == SOCKET_STOP_PRE_SIGKILL ||
1356 s->state == SOCKET_STOP_PRE_SIGTERM ||
1357 s->state == SOCKET_STOP_POST ||
80876c20
LP		 1358 s->state == SOCKET_FINAL_SIGTERM ||
1359 s->state == SOCKET_FINAL_SIGKILL)
034c6ed7
LP		 1360 return -EAGAIN;
1361
83c60c9f
LP		 1362 if (s->state == SOCKET_START_PRE ||
1363 s->state == SOCKET_START_POST)
034c6ed7 1364 return 0;
83c60c9f 1365
034c6ed7 1366 /* Cannot run this without the service being around */
4f2d528d 1367 if (s->service) {
4ac9236f
LP		 1368 if (s->service->meta.load_state != UNIT_LOADED) {
1369 log_error("Socket service %s not loaded, refusing.", s->service->meta.id);
4f2d528d 1370 return -ENOENT;
4ac9236f 1371 }
4f2d528d 1372
35b8ca3a 1373 /* If the service is already active we cannot start the
4f2d528d
LP		 1374 * socket */
1375 if (s->service->state != SERVICE_DEAD &&
fdf20a31 1376 s->service->state != SERVICE_FAILED &&
4ac9236f
LP		 1377 s->service->state != SERVICE_AUTO_RESTART) {
1378 log_error("Socket service %s already active, refusing.", s->service->meta.id);
4f2d528d 1379 return -EBUSY;
4ac9236f 1380 }
7b4bf06b
LP		 1381
1382#ifdef HAVE_SYSV_COMPAT
1383 if (s->service->sysv_path) {
1384 log_error("Using SysV services for socket activation is not supported. Refusing.");
1385 return -ENOENT;
1386 }
1387#endif
4f2d528d 1388 }
e537352b 1389
fdf20a31 1390 assert(s->state == SOCKET_DEAD || s->state == SOCKET_FAILED);
83c60c9f 1391
034c6ed7
LP		 1392 s->failure = false;
1393 socket_enter_start_pre(s);
1394 return 0;
1395}
83c60c9f 1396
87f0e418
LP		 1397static int socket_stop(Unit *u) {
1398 Socket *s = SOCKET(u);
034c6ed7
LP		 1399
1400 assert(s);
1401
e537352b
LP		 1402 /* Already on it */
1403 if (s->state == SOCKET_STOP_PRE ||
1404 s->state == SOCKET_STOP_PRE_SIGTERM ||
1405 s->state == SOCKET_STOP_PRE_SIGKILL ||
1406 s->state == SOCKET_STOP_POST ||
80876c20 1407 s->state == SOCKET_FINAL_SIGTERM ||
3f6c78dc 1408 s->state == SOCKET_FINAL_SIGKILL)
e537352b
LP		 1409 return 0;
1410
3f6c78dc
LP		 1411 /* If there's already something running we go directly into
1412 * kill mode. */
1413 if (s->state == SOCKET_START_PRE ||
1414 s->state == SOCKET_START_POST) {
1415 socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, true);
1416 return -EAGAIN;
1417 }
1418
034c6ed7 1419 assert(s->state == SOCKET_LISTENING || s->state == SOCKET_RUNNING);
83c60c9f 1420
034c6ed7 1421 socket_enter_stop_pre(s, true);
542563ba
LP		 1422 return 0;
1423}
1424
a16e1123
LP		 1425static int socket_serialize(Unit *u, FILE *f, FDSet *fds) {
1426 Socket *s = SOCKET(u);
1427 SocketPort *p;
1428 int r;
1429
1430 assert(u);
1431 assert(f);
1432 assert(fds);
1433
1434 unit_serialize_item(u, f, "state", socket_state_to_string(s->state));
1435 unit_serialize_item(u, f, "failure", yes_no(s->failure));
1436 unit_serialize_item_format(u, f, "n-accepted", "%u", s->n_accepted);
1437
1438 if (s->control_pid > 0)
5925dd3c 1439 unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
a16e1123
LP		 1440
1441 if (s->control_command_id >= 0)
1442 unit_serialize_item(u, f, "control-command", socket_exec_command_to_string(s->control_command_id));
1443
1444 LIST_FOREACH(port, p, s->ports) {
1445 int copy;
1446
1447 if (p->fd < 0)
1448 continue;
1449
1450 if ((copy = fdset_put_dup(fds, p->fd)) < 0)
1451 return copy;
1452
1453 if (p->type == SOCKET_SOCKET) {
1454 char *t;
1455
1456 if ((r = socket_address_print(&p->address, &t)) < 0)
1457 return r;
1458
7a22745a
LP		 1459 if (socket_address_family(&p->address) == AF_NETLINK)
1460 unit_serialize_item_format(u, f, "netlink", "%i %s", copy, t);
1461 else
1462 unit_serialize_item_format(u, f, "socket", "%i %i %s", copy, p->address.type, t);
a16e1123
LP		 1463 free(t);
1464 } else {
1465 assert(p->type == SOCKET_FIFO);
1466 unit_serialize_item_format(u, f, "fifo", "%i %s", copy, p->path);
1467 }
1468 }
1469
1470 return 0;
1471}
1472
1473static int socket_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
1474 Socket *s = SOCKET(u);
a16e1123
LP		 1475
1476 assert(u);
1477 assert(key);
1478 assert(value);
1479 assert(fds);
1480
1481 if (streq(key, "state")) {
1482 SocketState state;
1483
1484 if ((state = socket_state_from_string(value)) < 0)
1485 log_debug("Failed to parse state value %s", value);
1486 else
1487 s->deserialized_state = state;
1488 } else if (streq(key, "failure")) {
1489 int b;
1490
1491 if ((b = parse_boolean(value)) < 0)
1492 log_debug("Failed to parse failure value %s", value);
1493 else
1494 s->failure = b || s->failure;
1495
1496 } else if (streq(key, "n-accepted")) {
1497 unsigned k;
1498
e364ad06 1499 if (safe_atou(value, &k) < 0)
a16e1123
LP		 1500 log_debug("Failed to parse n-accepted value %s", value);
1501 else
1502 s->n_accepted += k;
1503 } else if (streq(key, "control-pid")) {
5925dd3c 1504 pid_t pid;
a16e1123 1505
e364ad06 1506 if (parse_pid(value, &pid) < 0)
a16e1123
LP		 1507 log_debug("Failed to parse control-pid value %s", value);
1508 else
5925dd3c 1509 s->control_pid = pid;
a16e1123
LP		 1510 } else if (streq(key, "control-command")) {
1511 SocketExecCommand id;
1512
1513 if ((id = socket_exec_command_from_string(value)) < 0)
1514 log_debug("Failed to parse exec-command value %s", value);
1515 else {
1516 s->control_command_id = id;
1517 s->control_command = s->exec_command[id];
1518 }
1519 } else if (streq(key, "fifo")) {
1520 int fd, skip = 0;
1521 SocketPort *p;
1522
1523 if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
1524 log_debug("Failed to parse fifo value %s", value);
1525 else {
1526
1527 LIST_FOREACH(port, p, s->ports)
1528 if (streq(p->path, value+skip))
1529 break;
1530
1531 if (p) {
1532 if (p->fd >= 0)
1533 close_nointr_nofail(p->fd);
1534 p->fd = fdset_remove(fds, fd);
1535 }
1536 }
1537
1538 } else if (streq(key, "socket")) {
27ca8d7a 1539 int fd, type, skip = 0;
a16e1123
LP		 1540 SocketPort *p;
1541
27ca8d7a 1542 if (sscanf(value, "%i %i %n", &fd, &type, &skip) < 2 || fd < 0 || type < 0 || !fdset_contains(fds, fd))
a16e1123
LP		 1543 log_debug("Failed to parse socket value %s", value);
1544 else {
1545
1546 LIST_FOREACH(port, p, s->ports)
27ca8d7a 1547 if (socket_address_is(&p->address, value+skip, type))
a16e1123
LP		 1548 break;
1549
1550 if (p) {
1551 if (p->fd >= 0)
1552 close_nointr_nofail(p->fd);
1553 p->fd = fdset_remove(fds, fd);
1554 }
1555 }
1556
7a22745a
LP		 1557 } else if (streq(key, "netlink")) {
1558 int fd, skip = 0;
1559 SocketPort *p;
1560
1561 if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
1562 log_debug("Failed to parse socket value %s", value);
1563 else {
1564
1565 LIST_FOREACH(port, p, s->ports)
1566 if (socket_address_is_netlink(&p->address, value+skip))
1567 break;
1568
1569 if (p) {
1570 if (p->fd >= 0)
1571 close_nointr_nofail(p->fd);
1572 p->fd = fdset_remove(fds, fd);
1573 }
1574 }
1575
a16e1123
LP		 1576 } else
1577 log_debug("Unknown serialization key '%s'", key);
1578
1579 return 0;
1580}
1581
87f0e418
LP		 1582static UnitActiveState socket_active_state(Unit *u) {
1583 assert(u);
5cb5a6ff 1584
acbb0225 1585 return state_translation_table[SOCKET(u)->state];
5cb5a6ff
LP		 1586}
1587
10a94420
LP		 1588static const char *socket_sub_state_to_string(Unit *u) {
1589 assert(u);
1590
a16e1123 1591 return socket_state_to_string(SOCKET(u)->state);
10a94420
LP		 1592}
1593
6cf6bbc2
LP		 1594static bool socket_check_gc(Unit *u) {
1595 Socket *s = SOCKET(u);
1596
1597 assert(u);
1598
1599 return s->n_connections > 0;
1600}
1601
acbb0225 1602static void socket_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
87f0e418 1603 Socket *s = SOCKET(u);
4f2d528d 1604 int cfd = -1;
9152c765 1605
034c6ed7 1606 assert(s);
8d567588 1607 assert(fd >= 0);
9152c765 1608
871d7de4
LP		 1609 if (s->state != SOCKET_LISTENING)
1610 return;
1611
9e2f7c11 1612 log_debug("Incoming traffic on %s", u->meta.id);
9152c765 1613
4f2d528d
LP		 1614 if (events != EPOLLIN) {
1615 log_error("Got invalid poll event on socket.");
8d567588 1616 goto fail;
4f2d528d
LP		 1617 }
1618
cabab516 1619 if (w->socket_accept) {
4f2d528d
LP		 1620 for (;;) {
1621
1622 if ((cfd = accept4(fd, NULL, NULL, SOCK_NONBLOCK)) < 0) {
1623
1624 if (errno == EINTR)
1625 continue;
1626
1627 log_error("Failed to accept socket: %m");
8d567588 1628 goto fail;
4f2d528d
LP		 1629 }
1630
1631 break;
1632 }
4fd5948e
LP		 1633
1634 socket_apply_socket_options(s, cfd);
4f2d528d 1635 }
9152c765 1636
4f2d528d 1637 socket_enter_running(s, cfd);
8d567588
LP		 1638 return;
1639
1640fail:
1641 socket_enter_stop_pre(s, false);
9152c765
LP		 1642}
1643
87f0e418
LP		 1644static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) {
1645 Socket *s = SOCKET(u);
034c6ed7 1646 bool success;
5cb5a6ff
LP		 1647
1648 assert(s);
034c6ed7 1649 assert(pid >= 0);
5cb5a6ff 1650
8c47c732
LP		 1651 if (pid != s->control_pid)
1652 return;
542563ba 1653
034c6ed7
LP		 1654 s->control_pid = 0;
1655
8c47c732 1656 success = is_clean_exit(code, status);
8c47c732 1657
b708e7ce 1658 if (s->control_command) {
169c1bda 1659 exec_status_exit(&s->control_command->exec_status, pid, code, status, s->exec_context.utmp_id);
a16e1123 1660
b708e7ce
LP		 1661 if (s->control_command->ignore)
1662 success = true;
1663 }
1664
92abbefb
LP		 1665 log_full(success ? LOG_DEBUG : LOG_NOTICE,
1666 "%s control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
b708e7ce 1667 s->failure = s->failure || !success;
034c6ed7 1668
a16e1123
LP		 1669 if (s->control_command && s->control_command->command_next && success) {
1670 log_debug("%s running next command for state %s", u->meta.id, socket_state_to_string(s->state));
034c6ed7 1671 socket_run_next(s, success);
acbb0225 1672 } else {
a16e1123
LP		 1673 s->control_command = NULL;
1674 s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID;
1675
034c6ed7
LP		 1676 /* No further commands for this step, so let's figure
1677 * out what to do next */
5cb5a6ff 1678
a16e1123 1679 log_debug("%s got final SIGCHLD for state %s", u->meta.id, socket_state_to_string(s->state));
acbb0225 1680
034c6ed7
LP		 1681 switch (s->state) {
1682
1683 case SOCKET_START_PRE:
1684 if (success)
acbb0225 1685 socket_enter_start_post(s);
034c6ed7 1686 else
80876c20 1687 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
034c6ed7
LP		 1688 break;
1689
1690 case SOCKET_START_POST:
1691 if (success)
e9af15c3 1692 socket_enter_listening(s);
034c6ed7
LP		 1693 else
1694 socket_enter_stop_pre(s, false);
1695 break;
1696
1697 case SOCKET_STOP_PRE:
1698 case SOCKET_STOP_PRE_SIGTERM:
1699 case SOCKET_STOP_PRE_SIGKILL:
1700 socket_enter_stop_post(s, success);
1701 break;
1702
1703 case SOCKET_STOP_POST:
80876c20
LP		 1704 case SOCKET_FINAL_SIGTERM:
1705 case SOCKET_FINAL_SIGKILL:
034c6ed7
LP		 1706 socket_enter_dead(s, success);
1707 break;
1708
1709 default:
1710 assert_not_reached("Uh, control process died at wrong time.");
1711 }
1712 }
c4e2ceae
LP		 1713
1714 /* Notify clients about changed exit status */
1715 unit_add_to_dbus_queue(u);
034c6ed7 1716}
5cb5a6ff 1717
acbb0225 1718static void socket_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
87f0e418 1719 Socket *s = SOCKET(u);
5cb5a6ff 1720
034c6ed7
LP		 1721 assert(s);
1722 assert(elapsed == 1);
acbb0225 1723 assert(w == &s->timer_watch);
034c6ed7
LP		 1724
1725 switch (s->state) {
1726
1727 case SOCKET_START_PRE:
9e2f7c11 1728 log_warning("%s starting timed out. Terminating.", u->meta.id);
80876c20 1729 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
da19d5c1 1730 break;
80876c20 1731
034c6ed7 1732 case SOCKET_START_POST:
9e2f7c11 1733 log_warning("%s starting timed out. Stopping.", u->meta.id);
034c6ed7
LP		 1734 socket_enter_stop_pre(s, false);
1735 break;
1736
1737 case SOCKET_STOP_PRE:
9e2f7c11 1738 log_warning("%s stopping timed out. Terminating.", u->meta.id);
034c6ed7
LP		 1739 socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, false);
1740 break;
1741
1742 case SOCKET_STOP_PRE_SIGTERM:
ba035df2
LP		 1743 if (s->exec_context.send_sigkill) {
1744 log_warning("%s stopping timed out. Killing.", u->meta.id);
1745 socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, false);
1746 } else {
1747 log_warning("%s stopping timed out. Skipping SIGKILL. Ignoring.", u->meta.id);
1748 socket_enter_stop_post(s, false);
1749 }
034c6ed7
LP		 1750 break;
1751
1752 case SOCKET_STOP_PRE_SIGKILL:
9e2f7c11 1753 log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
034c6ed7
LP		 1754 socket_enter_stop_post(s, false);
1755 break;
1756
1757 case SOCKET_STOP_POST:
9e2f7c11 1758 log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
80876c20 1759 socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
034c6ed7
LP		 1760 break;
1761
80876c20 1762 case SOCKET_FINAL_SIGTERM:
ba035df2
LP		 1763 if (s->exec_context.send_sigkill) {
1764 log_warning("%s stopping timed out (2). Killing.", u->meta.id);
1765 socket_enter_signal(s, SOCKET_FINAL_SIGKILL, false);
1766 } else {
1767 log_warning("%s stopping timed out (2). Skipping SIGKILL. Ignoring.", u->meta.id);
1768 socket_enter_dead(s, false);
1769 }
034c6ed7
LP		 1770 break;
1771
80876c20 1772 case SOCKET_FINAL_SIGKILL:
fdf20a31 1773 log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
034c6ed7
LP		 1774 socket_enter_dead(s, false);
1775 break;
1776
1777 default:
1778 assert_not_reached("Timeout at wrong time.");
1779 }
5cb5a6ff
LP		 1780}
1781
44d8db9e
LP		 1782int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds) {
1783 int *rfds;
1784 unsigned rn_fds, k;
1785 SocketPort *p;
1786
1787 assert(s);
1788 assert(fds);
1789 assert(n_fds);
1790
1791 /* Called from the service code for requesting our fds */
1792
1793 rn_fds = 0;
1794 LIST_FOREACH(port, p, s->ports)
1795 if (p->fd >= 0)
1796 rn_fds++;
1797
e364ad06 1798 if (!(rfds = new(int, rn_fds)))
44d8db9e
LP		 1799 return -ENOMEM;
1800
1801 k = 0;
1802 LIST_FOREACH(port, p, s->ports)
1803 if (p->fd >= 0)
1804 rfds[k++] = p->fd;
1805
1806 assert(k == rn_fds);
1807
1808 *fds = rfds;
1809 *n_fds = rn_fds;
1810
1811 return 0;
1812}
1813
ceee3d82
LP		 1814void socket_notify_service_dead(Socket *s) {
1815 assert(s);
1816
6cf6bbc2
LP		 1817 /* The service is dead. Dang!
1818 *
1819 * This is strictly for one-instance-for-all-connections
1820 * services. */
ceee3d82
LP		 1821
1822 if (s->state == SOCKET_RUNNING) {
9e2f7c11 1823 log_debug("%s got notified about service death.", s->meta.id);
ceee3d82
LP		 1824 socket_enter_listening(s);
1825 }
1826}
1827
6cf6bbc2
LP		 1828void socket_connection_unref(Socket *s) {
1829 assert(s);
1830
1831 /* The service is dead. Yay!
1832 *
35b8ca3a 1833 * This is strictly for one-instance-per-connection
6cf6bbc2
LP		 1834 * services. */
1835
1836 assert(s->n_connections > 0);
1837 s->n_connections--;
1838
1839 log_debug("%s: One connection closed, %u left.", s->meta.id, s->n_connections);
1840}
1841
fdf20a31 1842static void socket_reset_failed(Unit *u) {
5632e374
LP		 1843 Socket *s = SOCKET(u);
1844
1845 assert(s);
1846
fdf20a31 1847 if (s->state == SOCKET_FAILED)
5632e374
LP		 1848 socket_set_state(s, SOCKET_DEAD);
1849
1850 s->failure = false;
1851}
1852
8a0867d6
LP		 1853static int socket_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
1854 Socket *s = SOCKET(u);
1855 int r = 0;
1856 Set *pid_set = NULL;
1857
1858 assert(s);
1859
1860 if (who == KILL_MAIN) {
1861 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "Socket units have no main processes");
1862 return -EINVAL;
1863 }
1864
1865 if (s->control_pid <= 0 && who == KILL_CONTROL) {
1866 dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
1867 return -ENOENT;
1868 }
1869
1870 if (s->control_pid > 0)
cd25cce9 1871 if (kill(s->control_pid, signo) < 0)
8a0867d6
LP		 1872 r = -errno;
1873
1874 if (mode == KILL_CONTROL_GROUP) {
1875 int q;
1876
1877 if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
1878 return -ENOMEM;
1879
1880 /* Exclude the control pid from being killed via the cgroup */
1881 if (s->control_pid > 0)
1882 if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
1883 r = q;
1884 goto finish;
1885 }
1886
430c18ed 1887 if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, false, pid_set)) < 0)
8a0867d6
LP		 1888 if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
1889 r = q;
1890 }
1891
1892finish:
1893 if (pid_set)
1894 set_free(pid_set);
1895
1896 return r;
1897}
1898
a16e1123
LP		 1899static const char* const socket_state_table[_SOCKET_STATE_MAX] = {
1900 [SOCKET_DEAD] = "dead",
1901 [SOCKET_START_PRE] = "start-pre",
1902 [SOCKET_START_POST] = "start-post",
1903 [SOCKET_LISTENING] = "listening",
1904 [SOCKET_RUNNING] = "running",
1905 [SOCKET_STOP_PRE] = "stop-pre",
1906 [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm",
1907 [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill",
1908 [SOCKET_STOP_POST] = "stop-post",
1909 [SOCKET_FINAL_SIGTERM] = "final-sigterm",
1910 [SOCKET_FINAL_SIGKILL] = "final-sigkill",
fdf20a31 1911 [SOCKET_FAILED] = "failed"
a16e1123
LP		 1912};
1913
1914DEFINE_STRING_TABLE_LOOKUP(socket_state, SocketState);
1915
1916static const char* const socket_exec_command_table[_SOCKET_EXEC_COMMAND_MAX] = {
1917 [SOCKET_EXEC_START_PRE] = "StartPre",
1918 [SOCKET_EXEC_START_POST] = "StartPost",
1919 [SOCKET_EXEC_STOP_PRE] = "StopPre",
1920 [SOCKET_EXEC_STOP_POST] = "StopPost"
1921};
1922
1923DEFINE_STRING_TABLE_LOOKUP(socket_exec_command, SocketExecCommand);
1924
87f0e418 1925const UnitVTable socket_vtable = {
5cb5a6ff
LP		 1926 .suffix = ".socket",
1927
034c6ed7
LP		 1928 .init = socket_init,
1929 .done = socket_done,
a16e1123
LP		 1930 .load = socket_load,
1931
8a0867d6
LP		 1932 .kill = socket_kill,
1933
a16e1123 1934 .coldplug = socket_coldplug,
034c6ed7 1935
5cb5a6ff
LP		 1936 .dump = socket_dump,
1937
542563ba
LP		 1938 .start = socket_start,
1939 .stop = socket_stop,
5cb5a6ff 1940
a16e1123
LP		 1941 .serialize = socket_serialize,
1942 .deserialize_item = socket_deserialize_item,
1943
5cb5a6ff 1944 .active_state = socket_active_state,
10a94420 1945 .sub_state_to_string = socket_sub_state_to_string,
5cb5a6ff 1946
6cf6bbc2
LP		 1947 .check_gc = socket_check_gc,
1948
9152c765 1949 .fd_event = socket_fd_event,
034c6ed7 1950 .sigchld_event = socket_sigchld_event,
4139c1b2
LP		 1951 .timer_event = socket_timer_event,
1952
fdf20a31 1953 .reset_failed = socket_reset_failed,
5632e374 1954
c4e2ceae
LP		 1955 .bus_interface = "org.freedesktop.systemd1.Socket",
1956 .bus_message_handler = bus_socket_message_handler,
1957 .bus_invalidating_properties = bus_socket_invalidating_properties
5cb5a6ff 1958};
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