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Commit | Line | Data |
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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" |
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" |
83c60c9f | 43 | |
acbb0225 | 44 | static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = { |
87f0e418 LP |
45 | [SOCKET_DEAD] = UNIT_INACTIVE, |
46 | [SOCKET_START_PRE] = UNIT_ACTIVATING, | |
47 | [SOCKET_START_POST] = UNIT_ACTIVATING, | |
48 | [SOCKET_LISTENING] = UNIT_ACTIVE, | |
49 | [SOCKET_RUNNING] = UNIT_ACTIVE, | |
50 | [SOCKET_STOP_PRE] = UNIT_DEACTIVATING, | |
51 | [SOCKET_STOP_PRE_SIGTERM] = UNIT_DEACTIVATING, | |
52 | [SOCKET_STOP_PRE_SIGKILL] = UNIT_DEACTIVATING, | |
53 | [SOCKET_STOP_POST] = UNIT_DEACTIVATING, | |
80876c20 LP |
54 | [SOCKET_FINAL_SIGTERM] = UNIT_DEACTIVATING, |
55 | [SOCKET_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
032ff4af | 56 | [SOCKET_MAINTENANCE] = UNIT_MAINTENANCE |
83c60c9f | 57 | }; |
5cb5a6ff | 58 | |
a16e1123 LP |
59 | static void socket_init(Unit *u) { |
60 | Socket *s = SOCKET(u); | |
61 | ||
62 | assert(u); | |
63 | assert(u->meta.load_state == UNIT_STUB); | |
64 | ||
a16e1123 LP |
65 | s->backlog = SOMAXCONN; |
66 | s->timeout_usec = DEFAULT_TIMEOUT_USEC; | |
67 | s->directory_mode = 0755; | |
68 | s->socket_mode = 0666; | |
69 | ||
6cf6bbc2 LP |
70 | s->max_connections = 64; |
71 | ||
4fd5948e | 72 | s->priority = -1; |
4fd5948e LP |
73 | s->ip_tos = -1; |
74 | s->ip_ttl = -1; | |
4fd5948e | 75 | s->mark = -1; |
4fd5948e | 76 | |
a16e1123 LP |
77 | exec_context_init(&s->exec_context); |
78 | ||
79 | s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID; | |
80 | } | |
acbb0225 | 81 | |
5e94833f LP |
82 | static void socket_unwatch_control_pid(Socket *s) { |
83 | assert(s); | |
84 | ||
85 | if (s->control_pid <= 0) | |
86 | return; | |
87 | ||
88 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
89 | s->control_pid = 0; | |
90 | } | |
91 | ||
87f0e418 LP |
92 | static void socket_done(Unit *u) { |
93 | Socket *s = SOCKET(u); | |
034c6ed7 | 94 | SocketPort *p; |
6cf6bbc2 | 95 | Meta *i; |
034c6ed7 LP |
96 | |
97 | assert(s); | |
98 | ||
99 | while ((p = s->ports)) { | |
100 | LIST_REMOVE(SocketPort, port, s->ports, p); | |
101 | ||
a16e1123 LP |
102 | if (p->fd >= 0) { |
103 | unit_unwatch_fd(UNIT(s), &p->fd_watch); | |
104 | close_nointr_nofail(p->fd); | |
105 | } | |
106 | ||
034c6ed7 LP |
107 | free(p->path); |
108 | free(p); | |
109 | } | |
110 | ||
111 | exec_context_done(&s->exec_context); | |
e537352b | 112 | exec_command_free_array(s->exec_command, _SOCKET_EXEC_COMMAND_MAX); |
034c6ed7 LP |
113 | s->control_command = NULL; |
114 | ||
5e94833f | 115 | socket_unwatch_control_pid(s); |
034c6ed7 LP |
116 | |
117 | s->service = NULL; | |
118 | ||
cebf8b20 TT |
119 | free(s->tcp_congestion); |
120 | s->tcp_congestion = NULL; | |
121 | ||
acbb0225 | 122 | free(s->bind_to_device); |
e537352b | 123 | s->bind_to_device = NULL; |
acbb0225 LP |
124 | |
125 | unit_unwatch_timer(u, &s->timer_watch); | |
6cf6bbc2 LP |
126 | |
127 | /* Make sure no service instance refers to us anymore. */ | |
128 | LIST_FOREACH(units_per_type, i, u->meta.manager->units_per_type[UNIT_SERVICE]) { | |
129 | Service *service = (Service *) i; | |
130 | ||
131 | if (service->socket == s) | |
132 | service->socket = NULL; | |
133 | } | |
5cb5a6ff LP |
134 | } |
135 | ||
b15bdda8 LP |
136 | static int socket_instantiate_service(Socket *s) { |
137 | char *prefix, *name; | |
138 | int r; | |
139 | Unit *u; | |
140 | ||
141 | assert(s); | |
142 | ||
143 | /* This fills in s->service if it isn't filled in yet. For | |
144 | * Accept=yes sockets we create the next connection service | |
145 | * here. For Accept=no this is mostly a NOP since the service | |
146 | * is figured out at load time anyway. */ | |
147 | ||
148 | if (s->service) | |
149 | return 0; | |
150 | ||
151 | assert(s->accept); | |
152 | ||
153 | if (!(prefix = unit_name_to_prefix(s->meta.id))) | |
154 | return -ENOMEM; | |
155 | ||
156 | r = asprintf(&name, "%s@%u.service", prefix, s->n_accepted); | |
157 | free(prefix); | |
158 | ||
159 | if (r < 0) | |
160 | return -ENOMEM; | |
161 | ||
162 | r = manager_load_unit(s->meta.manager, name, NULL, NULL, &u); | |
163 | free(name); | |
164 | ||
165 | if (r < 0) | |
166 | return r; | |
167 | ||
6c073082 | 168 | u->meta.no_gc = true; |
b15bdda8 LP |
169 | s->service = SERVICE(u); |
170 | return 0; | |
171 | } | |
172 | ||
4f2d528d LP |
173 | static bool have_non_accept_socket(Socket *s) { |
174 | SocketPort *p; | |
175 | ||
176 | assert(s); | |
177 | ||
178 | if (!s->accept) | |
179 | return true; | |
180 | ||
dd5ad9d4 LP |
181 | LIST_FOREACH(port, p, s->ports) { |
182 | ||
183 | if (p->type != SOCKET_SOCKET) | |
184 | return true; | |
185 | ||
4f2d528d LP |
186 | if (!socket_address_can_accept(&p->address)) |
187 | return true; | |
dd5ad9d4 | 188 | } |
4f2d528d LP |
189 | |
190 | return false; | |
191 | } | |
192 | ||
193 | static int socket_verify(Socket *s) { | |
194 | assert(s); | |
195 | ||
4cd1fbcc | 196 | if (s->meta.load_state != UNIT_LOADED) |
4f2d528d LP |
197 | return 0; |
198 | ||
199 | if (!s->ports) { | |
4cd1fbcc | 200 | log_error("%s lacks Listen setting. Refusing.", s->meta.id); |
4f2d528d LP |
201 | return -EINVAL; |
202 | } | |
203 | ||
0009d2a6 LP |
204 | if (s->accept && have_non_accept_socket(s)) { |
205 | log_error("%s configured for accepting sockets, but sockets are non-accepting. Refusing.", s->meta.id); | |
206 | return -EINVAL; | |
207 | } | |
208 | ||
6cf6bbc2 | 209 | if (s->accept && s->max_connections <= 0) { |
4d0e5dbd LP |
210 | log_error("%s's MaxConnection setting too small. Refusing.", s->meta.id); |
211 | return -EINVAL; | |
212 | } | |
213 | ||
2e22afe9 | 214 | if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) { |
4d0e5dbd | 215 | log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id); |
6cf6bbc2 LP |
216 | return -EINVAL; |
217 | } | |
218 | ||
4f2d528d LP |
219 | return 0; |
220 | } | |
221 | ||
6e2ef85b LP |
222 | static bool socket_needs_mount(Socket *s, const char *prefix) { |
223 | SocketPort *p; | |
224 | ||
225 | assert(s); | |
226 | ||
227 | LIST_FOREACH(port, p, s->ports) { | |
228 | ||
229 | if (p->type == SOCKET_SOCKET) { | |
230 | if (socket_address_needs_mount(&p->address, prefix)) | |
231 | return true; | |
232 | } else { | |
233 | assert(p->type == SOCKET_FIFO); | |
234 | if (path_startswith(p->path, prefix)) | |
235 | return true; | |
236 | } | |
237 | } | |
238 | ||
239 | return false; | |
240 | } | |
241 | ||
242 | int socket_add_one_mount_link(Socket *s, Mount *m) { | |
243 | int r; | |
244 | ||
245 | assert(s); | |
246 | assert(m); | |
247 | ||
248 | if (s->meta.load_state != UNIT_LOADED || | |
249 | m->meta.load_state != UNIT_LOADED) | |
250 | return 0; | |
251 | ||
252 | if (!socket_needs_mount(s, m->where)) | |
253 | return 0; | |
254 | ||
2c966c03 | 255 | if ((r = unit_add_two_dependencies(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, UNIT(m), true)) < 0) |
6e2ef85b LP |
256 | return r; |
257 | ||
258 | return 0; | |
259 | } | |
260 | ||
261 | static int socket_add_mount_links(Socket *s) { | |
262 | Meta *other; | |
263 | int r; | |
264 | ||
265 | assert(s); | |
266 | ||
267 | LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_MOUNT]) | |
268 | if ((r = socket_add_one_mount_link(s, (Mount*) other)) < 0) | |
269 | return r; | |
270 | ||
271 | return 0; | |
272 | } | |
273 | ||
274 | static int socket_add_device_link(Socket *s) { | |
275 | char *t; | |
276 | int r; | |
277 | ||
278 | assert(s); | |
279 | ||
280 | if (!s->bind_to_device) | |
281 | return 0; | |
282 | ||
283 | if (asprintf(&t, "/sys/subsystem/net/devices/%s", s->bind_to_device) < 0) | |
284 | return -ENOMEM; | |
285 | ||
286 | r = unit_add_node_link(UNIT(s), t, false); | |
287 | free(t); | |
288 | ||
289 | return r; | |
290 | } | |
291 | ||
a40eb732 LP |
292 | static int socket_add_default_dependencies(Socket *s) { |
293 | int r; | |
294 | assert(s); | |
295 | ||
296 | if (s->meta.manager->running_as == MANAGER_SYSTEM) | |
297 | if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true)) < 0) | |
298 | return r; | |
299 | ||
69dd2852 | 300 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTED_BY, SPECIAL_SHUTDOWN_TARGET, NULL, true); |
a40eb732 LP |
301 | } |
302 | ||
e537352b LP |
303 | static int socket_load(Unit *u) { |
304 | Socket *s = SOCKET(u); | |
305 | int r; | |
44d8db9e | 306 | |
e537352b LP |
307 | assert(u); |
308 | assert(u->meta.load_state == UNIT_STUB); | |
44d8db9e | 309 | |
e537352b | 310 | if ((r = unit_load_fragment_and_dropin(u)) < 0) |
23a177ef | 311 | return r; |
44d8db9e | 312 | |
23a177ef | 313 | /* This is a new unit? Then let's add in some extras */ |
e537352b | 314 | if (u->meta.load_state == UNIT_LOADED) { |
44d8db9e | 315 | |
4f2d528d | 316 | if (have_non_accept_socket(s)) { |
25366e09 | 317 | if ((r = unit_load_related_unit(u, ".service", (Unit**) &s->service)) < 0) |
4f2d528d | 318 | return r; |
23a177ef | 319 | |
701cc384 | 320 | if ((r = unit_add_dependency(u, UNIT_BEFORE, UNIT(s->service), true)) < 0) |
4f2d528d LP |
321 | return r; |
322 | } | |
44d8db9e | 323 | |
6e2ef85b LP |
324 | if ((r = socket_add_mount_links(s)) < 0) |
325 | return r; | |
326 | ||
327 | if ((r = socket_add_device_link(s)) < 0) | |
328 | return r; | |
329 | ||
23a177ef LP |
330 | if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0) |
331 | return r; | |
332 | ||
333 | if ((r = unit_add_default_cgroup(u)) < 0) | |
334 | return r; | |
a40eb732 LP |
335 | |
336 | if (s->meta.default_dependencies) | |
337 | if ((r = socket_add_default_dependencies(s)) < 0) | |
338 | return r; | |
23a177ef LP |
339 | } |
340 | ||
4f2d528d | 341 | return socket_verify(s); |
44d8db9e LP |
342 | } |
343 | ||
542563ba LP |
344 | static const char* listen_lookup(int type) { |
345 | ||
346 | if (type == SOCK_STREAM) | |
347 | return "ListenStream"; | |
348 | else if (type == SOCK_DGRAM) | |
349 | return "ListenDatagram"; | |
350 | else if (type == SOCK_SEQPACKET) | |
351 | return "ListenSequentialPacket"; | |
352 | ||
034c6ed7 | 353 | assert_not_reached("Unknown socket type"); |
542563ba LP |
354 | return NULL; |
355 | } | |
356 | ||
87f0e418 | 357 | static void socket_dump(Unit *u, FILE *f, const char *prefix) { |
5cb5a6ff | 358 | |
5cb5a6ff | 359 | SocketExecCommand c; |
87f0e418 | 360 | Socket *s = SOCKET(u); |
542563ba | 361 | SocketPort *p; |
82ba9f08 LP |
362 | const char *prefix2; |
363 | char *p2; | |
5cb5a6ff LP |
364 | |
365 | assert(s); | |
fa068367 | 366 | assert(f); |
5cb5a6ff | 367 | |
82ba9f08 LP |
368 | p2 = strappend(prefix, "\t"); |
369 | prefix2 = p2 ? p2 : prefix; | |
c43d20a0 | 370 | |
5cb5a6ff LP |
371 | fprintf(f, |
372 | "%sSocket State: %s\n" | |
542563ba | 373 | "%sBindIPv6Only: %s\n" |
b5a0699f LP |
374 | "%sBacklog: %u\n" |
375 | "%sSocketMode: %04o\n" | |
4fd5948e LP |
376 | "%sDirectoryMode: %04o\n" |
377 | "%sKeepAlive: %s\n" | |
cebf8b20 TT |
378 | "%sFreeBind: %s\n" |
379 | "%sTCPCongestion: %s\n", | |
a16e1123 | 380 | prefix, socket_state_to_string(s->state), |
c0120d99 | 381 | prefix, socket_address_bind_ipv6_only_to_string(s->bind_ipv6_only), |
b5a0699f LP |
382 | prefix, s->backlog, |
383 | prefix, s->socket_mode, | |
4fd5948e LP |
384 | prefix, s->directory_mode, |
385 | prefix, yes_no(s->keep_alive), | |
cebf8b20 TT |
386 | prefix, yes_no(s->free_bind), |
387 | prefix, s->tcp_congestion); | |
542563ba | 388 | |
70123e68 LP |
389 | if (s->control_pid > 0) |
390 | fprintf(f, | |
bb00e604 LP |
391 | "%sControl PID: %lu\n", |
392 | prefix, (unsigned long) s->control_pid); | |
70123e68 | 393 | |
acbb0225 LP |
394 | if (s->bind_to_device) |
395 | fprintf(f, | |
396 | "%sBindToDevice: %s\n", | |
397 | prefix, s->bind_to_device); | |
398 | ||
4f2d528d LP |
399 | if (s->accept) |
400 | fprintf(f, | |
6cf6bbc2 LP |
401 | "%sAccepted: %u\n" |
402 | "%sNConnections: %u\n" | |
403 | "%sMaxConnections: %u\n", | |
404 | prefix, s->n_accepted, | |
405 | prefix, s->n_connections, | |
406 | prefix, s->max_connections); | |
4f2d528d | 407 | |
4fd5948e LP |
408 | if (s->priority >= 0) |
409 | fprintf(f, | |
410 | "%sPriority: %i\n", | |
411 | prefix, s->priority); | |
412 | ||
413 | if (s->receive_buffer > 0) | |
414 | fprintf(f, | |
415 | "%sReceiveBuffer: %zu\n", | |
416 | prefix, s->receive_buffer); | |
417 | ||
418 | if (s->send_buffer > 0) | |
419 | fprintf(f, | |
420 | "%sSendBuffer: %zu\n", | |
421 | prefix, s->send_buffer); | |
422 | ||
423 | if (s->ip_tos >= 0) | |
424 | fprintf(f, | |
425 | "%sIPTOS: %i\n", | |
426 | prefix, s->ip_tos); | |
427 | ||
428 | if (s->ip_ttl >= 0) | |
429 | fprintf(f, | |
430 | "%sIPTTL: %i\n", | |
431 | prefix, s->ip_ttl); | |
432 | ||
433 | if (s->pipe_size > 0) | |
434 | fprintf(f, | |
435 | "%sPipeSize: %zu\n", | |
436 | prefix, s->pipe_size); | |
437 | ||
438 | if (s->mark >= 0) | |
439 | fprintf(f, | |
440 | "%sMark: %i\n", | |
441 | prefix, s->mark); | |
442 | ||
034c6ed7 | 443 | LIST_FOREACH(port, p, s->ports) { |
5cb5a6ff | 444 | |
542563ba LP |
445 | if (p->type == SOCKET_SOCKET) { |
446 | const char *t; | |
447 | int r; | |
e364ad06 | 448 | char *k = NULL; |
542563ba LP |
449 | |
450 | if ((r = socket_address_print(&p->address, &k)) < 0) | |
451 | t = strerror(-r); | |
452 | else | |
453 | t = k; | |
454 | ||
e364ad06 | 455 | fprintf(f, "%s%s: %s\n", prefix, listen_lookup(p->address.type), t); |
542563ba LP |
456 | free(k); |
457 | } else | |
458 | fprintf(f, "%sListenFIFO: %s\n", prefix, p->path); | |
459 | } | |
5cb5a6ff LP |
460 | |
461 | exec_context_dump(&s->exec_context, f, prefix); | |
462 | ||
e537352b | 463 | for (c = 0; c < _SOCKET_EXEC_COMMAND_MAX; c++) { |
c43d20a0 LP |
464 | if (!s->exec_command[c]) |
465 | continue; | |
5cb5a6ff | 466 | |
40d50879 | 467 | fprintf(f, "%s-> %s:\n", |
a16e1123 | 468 | prefix, socket_exec_command_to_string(c)); |
c43d20a0 LP |
469 | |
470 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff | 471 | } |
c43d20a0 | 472 | |
82ba9f08 | 473 | free(p2); |
5cb5a6ff LP |
474 | } |
475 | ||
4f2d528d LP |
476 | static int instance_from_socket(int fd, unsigned nr, char **instance) { |
477 | socklen_t l; | |
478 | char *r; | |
479 | union { | |
480 | struct sockaddr sa; | |
481 | struct sockaddr_un un; | |
482 | struct sockaddr_in in; | |
483 | struct sockaddr_in6 in6; | |
484 | struct sockaddr_storage storage; | |
485 | } local, remote; | |
486 | ||
487 | assert(fd >= 0); | |
488 | assert(instance); | |
489 | ||
490 | l = sizeof(local); | |
491 | if (getsockname(fd, &local.sa, &l) < 0) | |
492 | return -errno; | |
493 | ||
494 | l = sizeof(remote); | |
495 | if (getpeername(fd, &remote.sa, &l) < 0) | |
496 | return -errno; | |
497 | ||
498 | switch (local.sa.sa_family) { | |
499 | ||
500 | case AF_INET: { | |
501 | uint32_t | |
502 | a = ntohl(local.in.sin_addr.s_addr), | |
503 | b = ntohl(remote.in.sin_addr.s_addr); | |
504 | ||
505 | if (asprintf(&r, | |
b15bdda8 | 506 | "%u.%u.%u.%u:%u-%u.%u.%u.%u:%u", |
4f2d528d LP |
507 | a >> 24, (a >> 16) & 0xFF, (a >> 8) & 0xFF, a & 0xFF, |
508 | ntohs(local.in.sin_port), | |
509 | b >> 24, (b >> 16) & 0xFF, (b >> 8) & 0xFF, b & 0xFF, | |
510 | ntohs(remote.in.sin_port)) < 0) | |
511 | return -ENOMEM; | |
512 | ||
513 | break; | |
514 | } | |
515 | ||
516 | case AF_INET6: { | |
2b061f5a LP |
517 | static const char ipv4_prefix[] = { |
518 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF | |
519 | }; | |
520 | ||
521 | if (memcmp(&local.in6.sin6_addr, ipv4_prefix, sizeof(ipv4_prefix)) == 0 && | |
522 | memcmp(&remote.in6.sin6_addr, ipv4_prefix, sizeof(ipv4_prefix)) == 0) { | |
523 | const uint8_t | |
524 | *a = local.in6.sin6_addr.s6_addr+12, | |
525 | *b = remote.in6.sin6_addr.s6_addr+12; | |
526 | ||
527 | if (asprintf(&r, | |
b15bdda8 | 528 | "%u.%u.%u.%u:%u-%u.%u.%u.%u:%u", |
2b061f5a LP |
529 | a[0], a[1], a[2], a[3], |
530 | ntohs(local.in6.sin6_port), | |
531 | b[0], b[1], b[2], b[3], | |
532 | ntohs(remote.in6.sin6_port)) < 0) | |
533 | return -ENOMEM; | |
534 | } else { | |
535 | char a[INET6_ADDRSTRLEN], b[INET6_ADDRSTRLEN]; | |
536 | ||
537 | if (asprintf(&r, | |
b15bdda8 | 538 | "%s:%u-%s:%u", |
2b061f5a LP |
539 | inet_ntop(AF_INET6, &local.in6.sin6_addr, a, sizeof(a)), |
540 | ntohs(local.in6.sin6_port), | |
541 | inet_ntop(AF_INET6, &remote.in6.sin6_addr, b, sizeof(b)), | |
542 | ntohs(remote.in6.sin6_port)) < 0) | |
543 | return -ENOMEM; | |
544 | } | |
4f2d528d LP |
545 | |
546 | break; | |
547 | } | |
548 | ||
549 | case AF_UNIX: { | |
550 | struct ucred ucred; | |
551 | ||
552 | l = sizeof(ucred); | |
553 | if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &ucred, &l) < 0) | |
554 | return -errno; | |
555 | ||
556 | if (asprintf(&r, | |
bb00e604 | 557 | "%u-%lu-%lu", |
4f2d528d | 558 | nr, |
bb00e604 LP |
559 | (unsigned long) ucred.pid, |
560 | (unsigned long) ucred.uid) < 0) | |
4f2d528d LP |
561 | return -ENOMEM; |
562 | ||
563 | break; | |
564 | } | |
565 | ||
566 | default: | |
567 | assert_not_reached("Unhandled socket type."); | |
568 | } | |
569 | ||
570 | *instance = r; | |
571 | return 0; | |
572 | } | |
573 | ||
034c6ed7 | 574 | static void socket_close_fds(Socket *s) { |
83c60c9f LP |
575 | SocketPort *p; |
576 | ||
577 | assert(s); | |
578 | ||
034c6ed7 | 579 | LIST_FOREACH(port, p, s->ports) { |
83c60c9f LP |
580 | if (p->fd < 0) |
581 | continue; | |
582 | ||
acbb0225 | 583 | unit_unwatch_fd(UNIT(s), &p->fd_watch); |
a16e1123 LP |
584 | close_nointr_nofail(p->fd); |
585 | ||
586 | /* One little note: we should never delete any sockets | |
587 | * in the file system here! After all some other | |
588 | * process we spawned might still have a reference of | |
589 | * this fd and wants to continue to use it. Therefore | |
590 | * we delete sockets in the file system before we | |
591 | * create a new one, not after we stopped using | |
592 | * one! */ | |
9152c765 | 593 | |
83c60c9f LP |
594 | p->fd = -1; |
595 | } | |
596 | } | |
597 | ||
4fd5948e LP |
598 | static void socket_apply_socket_options(Socket *s, int fd) { |
599 | assert(s); | |
600 | assert(fd >= 0); | |
601 | ||
602 | if (s->keep_alive) { | |
603 | int b = s->keep_alive; | |
604 | if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &b, sizeof(b)) < 0) | |
605 | log_warning("SO_KEEPALIVE failed: %m"); | |
606 | } | |
607 | ||
608 | if (s->priority >= 0) | |
609 | if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &s->priority, sizeof(s->priority)) < 0) | |
610 | log_warning("SO_PRIORITY failed: %m"); | |
611 | ||
612 | if (s->receive_buffer > 0) { | |
613 | int value = (int) s->receive_buffer; | |
614 | if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value)) < 0) | |
615 | log_warning("SO_RCVBUF failed: %m"); | |
616 | } | |
617 | ||
618 | if (s->send_buffer > 0) { | |
619 | int value = (int) s->send_buffer; | |
620 | if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, sizeof(value)) < 0) | |
621 | log_warning("SO_SNDBUF failed: %m"); | |
622 | } | |
623 | ||
624 | if (s->mark >= 0) | |
625 | if (setsockopt(fd, SOL_SOCKET, SO_MARK, &s->mark, sizeof(s->mark)) < 0) | |
626 | log_warning("SO_MARK failed: %m"); | |
627 | ||
628 | if (s->ip_tos >= 0) | |
629 | if (setsockopt(fd, IPPROTO_IP, IP_TOS, &s->ip_tos, sizeof(s->ip_tos)) < 0) | |
630 | log_warning("IP_TOS failed: %m"); | |
631 | ||
46925ac5 LP |
632 | if (s->ip_ttl >= 0) { |
633 | int r, x; | |
634 | ||
635 | r = setsockopt(fd, IPPROTO_IP, IP_TTL, &s->ip_ttl, sizeof(s->ip_ttl)); | |
636 | x = setsockopt(fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &s->ip_ttl, sizeof(s->ip_ttl)); | |
637 | ||
638 | if (r < 0 && x < 0) | |
639 | log_warning("IP_TTL/IPV6_UNICAST_HOPS failed: %m"); | |
640 | } | |
cebf8b20 TT |
641 | |
642 | if (s->tcp_congestion) | |
643 | if (setsockopt(fd, SOL_TCP, TCP_CONGESTION, s->tcp_congestion, strlen(s->tcp_congestion)+1) < 0) | |
644 | log_warning("TCP_CONGESTION failed: %m"); | |
4fd5948e LP |
645 | } |
646 | ||
b15bdda8 | 647 | static void socket_apply_fifo_options(Socket *s, int fd) { |
4fd5948e LP |
648 | assert(s); |
649 | assert(fd >= 0); | |
650 | ||
651 | if (s->pipe_size > 0) | |
652 | if (fcntl(fd, F_SETPIPE_SZ, s->pipe_size) < 0) | |
653 | log_warning("F_SETPIPE_SZ: %m"); | |
654 | } | |
655 | ||
7a58bfa4 | 656 | |
b15bdda8 LP |
657 | static int fifo_address_create( |
658 | const char *path, | |
659 | mode_t directory_mode, | |
660 | mode_t socket_mode, | |
56cf987f | 661 | const char *label, |
b15bdda8 LP |
662 | int *_fd) { |
663 | ||
7a58bfa4 | 664 | int fd = -1, r = 0; |
b15bdda8 LP |
665 | struct stat st; |
666 | mode_t old_mask; | |
667 | ||
668 | assert(path); | |
669 | assert(_fd); | |
670 | ||
671 | mkdir_parents(path, directory_mode); | |
672 | ||
56cf987f DW |
673 | if ((r = label_fifofile_set(label, path)) < 0) |
674 | goto fail; | |
b15bdda8 LP |
675 | |
676 | /* Enforce the right access mode for the fifo */ | |
677 | old_mask = umask(~ socket_mode); | |
678 | ||
679 | /* Include the original umask in our mask */ | |
680 | umask(~socket_mode | old_mask); | |
681 | ||
682 | r = mkfifo(path, socket_mode); | |
683 | umask(old_mask); | |
684 | ||
685 | if (r < 0) { | |
686 | r = -errno; | |
687 | goto fail; | |
688 | } | |
689 | ||
690 | if ((fd = open(path, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW)) < 0) { | |
691 | r = -errno; | |
692 | goto fail; | |
693 | } | |
694 | ||
56cf987f | 695 | label_file_clear(); |
7a58bfa4 | 696 | |
b15bdda8 LP |
697 | if (fstat(fd, &st) < 0) { |
698 | r = -errno; | |
699 | goto fail; | |
700 | } | |
701 | ||
702 | if (!S_ISFIFO(st.st_mode) || | |
de0200fc | 703 | (st.st_mode & 0777) != (socket_mode & ~old_mask) || |
b15bdda8 LP |
704 | st.st_uid != getuid() || |
705 | st.st_gid != getgid()) { | |
706 | ||
707 | r = -EEXIST; | |
708 | goto fail; | |
709 | } | |
710 | ||
711 | *_fd = fd; | |
712 | return 0; | |
713 | ||
714 | fail: | |
56cf987f DW |
715 | label_file_clear(); |
716 | ||
b15bdda8 LP |
717 | if (fd >= 0) |
718 | close_nointr_nofail(fd); | |
719 | ||
720 | return r; | |
721 | } | |
722 | ||
034c6ed7 | 723 | static int socket_open_fds(Socket *s) { |
83c60c9f LP |
724 | SocketPort *p; |
725 | int r; | |
56cf987f | 726 | char *label = NULL; |
83c60c9f LP |
727 | |
728 | assert(s); | |
729 | ||
b15bdda8 LP |
730 | if ((r = socket_instantiate_service(s)) < 0) |
731 | return r; | |
732 | ||
56cf987f DW |
733 | if ((r = label_get_socket_label_from_exe(s->service->exec_command[SERVICE_EXEC_START]->path, &label)) < 0) |
734 | return r; | |
b15bdda8 | 735 | |
034c6ed7 | 736 | LIST_FOREACH(port, p, s->ports) { |
83c60c9f | 737 | |
034c6ed7 LP |
738 | if (p->fd >= 0) |
739 | continue; | |
83c60c9f LP |
740 | |
741 | if (p->type == SOCKET_SOCKET) { | |
742 | ||
b5a0699f LP |
743 | if ((r = socket_address_listen( |
744 | &p->address, | |
745 | s->backlog, | |
746 | s->bind_ipv6_only, | |
747 | s->bind_to_device, | |
4fd5948e | 748 | s->free_bind, |
b5a0699f LP |
749 | s->directory_mode, |
750 | s->socket_mode, | |
56cf987f | 751 | label, |
b5a0699f | 752 | &p->fd)) < 0) |
83c60c9f LP |
753 | goto rollback; |
754 | ||
4fd5948e LP |
755 | socket_apply_socket_options(s, p->fd); |
756 | ||
b15bdda8 | 757 | } else if (p->type == SOCKET_FIFO) { |
83c60c9f | 758 | |
b15bdda8 LP |
759 | if ((r = fifo_address_create( |
760 | p->path, | |
761 | s->directory_mode, | |
762 | s->socket_mode, | |
56cf987f | 763 | label, |
b15bdda8 | 764 | &p->fd)) < 0) |
83c60c9f | 765 | goto rollback; |
83c60c9f | 766 | |
b15bdda8 | 767 | socket_apply_fifo_options(s, p->fd); |
83c60c9f | 768 | |
b15bdda8 LP |
769 | } else |
770 | assert_not_reached("Unknown port type"); | |
034c6ed7 LP |
771 | } |
772 | ||
56cf987f | 773 | label_free(label); |
034c6ed7 LP |
774 | return 0; |
775 | ||
776 | rollback: | |
777 | socket_close_fds(s); | |
56cf987f | 778 | label_free(label); |
034c6ed7 LP |
779 | return r; |
780 | } | |
781 | ||
782 | static void socket_unwatch_fds(Socket *s) { | |
783 | SocketPort *p; | |
9152c765 | 784 | |
034c6ed7 LP |
785 | assert(s); |
786 | ||
787 | LIST_FOREACH(port, p, s->ports) { | |
788 | if (p->fd < 0) | |
789 | continue; | |
790 | ||
acbb0225 | 791 | unit_unwatch_fd(UNIT(s), &p->fd_watch); |
83c60c9f | 792 | } |
034c6ed7 LP |
793 | } |
794 | ||
795 | static int socket_watch_fds(Socket *s) { | |
796 | SocketPort *p; | |
797 | int r; | |
798 | ||
799 | assert(s); | |
83c60c9f | 800 | |
034c6ed7 LP |
801 | LIST_FOREACH(port, p, s->ports) { |
802 | if (p->fd < 0) | |
803 | continue; | |
804 | ||
cabab516 | 805 | p->fd_watch.socket_accept = |
4f2d528d | 806 | s->accept && |
dd5ad9d4 | 807 | p->type == SOCKET_SOCKET && |
4f2d528d LP |
808 | socket_address_can_accept(&p->address); |
809 | ||
f94ea366 | 810 | if ((r = unit_watch_fd(UNIT(s), p->fd, EPOLLIN, &p->fd_watch)) < 0) |
034c6ed7 LP |
811 | goto fail; |
812 | } | |
83c60c9f | 813 | |
542563ba | 814 | return 0; |
83c60c9f | 815 | |
034c6ed7 LP |
816 | fail: |
817 | socket_unwatch_fds(s); | |
818 | return r; | |
819 | } | |
820 | ||
821 | static void socket_set_state(Socket *s, SocketState state) { | |
822 | SocketState old_state; | |
823 | assert(s); | |
824 | ||
825 | old_state = s->state; | |
826 | s->state = state; | |
827 | ||
828 | if (state != SOCKET_START_PRE && | |
829 | state != SOCKET_START_POST && | |
830 | state != SOCKET_STOP_PRE && | |
831 | state != SOCKET_STOP_PRE_SIGTERM && | |
832 | state != SOCKET_STOP_PRE_SIGKILL && | |
833 | state != SOCKET_STOP_POST && | |
80876c20 LP |
834 | state != SOCKET_FINAL_SIGTERM && |
835 | state != SOCKET_FINAL_SIGKILL) { | |
acbb0225 | 836 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
5e94833f | 837 | socket_unwatch_control_pid(s); |
034c6ed7 | 838 | s->control_command = NULL; |
a16e1123 | 839 | s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID; |
e537352b | 840 | } |
034c6ed7 | 841 | |
a16e1123 LP |
842 | if (state != SOCKET_LISTENING) |
843 | socket_unwatch_fds(s); | |
844 | ||
034c6ed7 LP |
845 | if (state != SOCKET_START_POST && |
846 | state != SOCKET_LISTENING && | |
847 | state != SOCKET_RUNNING && | |
848 | state != SOCKET_STOP_PRE && | |
849 | state != SOCKET_STOP_PRE_SIGTERM && | |
850 | state != SOCKET_STOP_PRE_SIGKILL) | |
851 | socket_close_fds(s); | |
852 | ||
e537352b | 853 | if (state != old_state) |
40d50879 | 854 | log_debug("%s changed %s -> %s", |
a16e1123 LP |
855 | s->meta.id, |
856 | socket_state_to_string(old_state), | |
857 | socket_state_to_string(state)); | |
acbb0225 LP |
858 | |
859 | unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]); | |
034c6ed7 LP |
860 | } |
861 | ||
a16e1123 LP |
862 | static int socket_coldplug(Unit *u) { |
863 | Socket *s = SOCKET(u); | |
864 | int r; | |
865 | ||
866 | assert(s); | |
867 | assert(s->state == SOCKET_DEAD); | |
868 | ||
869 | if (s->deserialized_state != s->state) { | |
870 | ||
871 | if (s->deserialized_state == SOCKET_START_PRE || | |
872 | s->deserialized_state == SOCKET_START_POST || | |
873 | s->deserialized_state == SOCKET_STOP_PRE || | |
874 | s->deserialized_state == SOCKET_STOP_PRE_SIGTERM || | |
875 | s->deserialized_state == SOCKET_STOP_PRE_SIGKILL || | |
876 | s->deserialized_state == SOCKET_STOP_POST || | |
877 | s->deserialized_state == SOCKET_FINAL_SIGTERM || | |
878 | s->deserialized_state == SOCKET_FINAL_SIGKILL) { | |
879 | ||
880 | if (s->control_pid <= 0) | |
881 | return -EBADMSG; | |
882 | ||
883 | if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0) | |
884 | return r; | |
885 | ||
886 | if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) | |
887 | return r; | |
888 | } | |
889 | ||
890 | if (s->deserialized_state == SOCKET_START_POST || | |
891 | s->deserialized_state == SOCKET_LISTENING || | |
892 | s->deserialized_state == SOCKET_RUNNING || | |
893 | s->deserialized_state == SOCKET_STOP_PRE || | |
894 | s->deserialized_state == SOCKET_STOP_PRE_SIGTERM || | |
895 | s->deserialized_state == SOCKET_STOP_PRE_SIGKILL) | |
896 | if ((r = socket_open_fds(s)) < 0) | |
897 | return r; | |
898 | ||
899 | if (s->deserialized_state == SOCKET_LISTENING) | |
900 | if ((r = socket_watch_fds(s)) < 0) | |
901 | return r; | |
902 | ||
903 | socket_set_state(s, s->deserialized_state); | |
904 | } | |
905 | ||
906 | return 0; | |
907 | } | |
908 | ||
e537352b | 909 | static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) { |
034c6ed7 LP |
910 | pid_t pid; |
911 | int r; | |
9e2f7c11 | 912 | char **argv; |
034c6ed7 LP |
913 | |
914 | assert(s); | |
915 | assert(c); | |
916 | assert(_pid); | |
917 | ||
e537352b LP |
918 | if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) |
919 | goto fail; | |
034c6ed7 | 920 | |
9e2f7c11 LP |
921 | if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) { |
922 | r = -ENOMEM; | |
923 | goto fail; | |
924 | } | |
925 | ||
926 | r = exec_spawn(c, | |
927 | argv, | |
928 | &s->exec_context, | |
929 | NULL, 0, | |
1137a57c | 930 | s->meta.manager->environment, |
9e2f7c11 LP |
931 | true, |
932 | true, | |
1e3ad081 | 933 | true, |
4cd1fbcc LP |
934 | s->meta.manager->confirm_spawn, |
935 | s->meta.cgroup_bondings, | |
9e2f7c11 LP |
936 | &pid); |
937 | ||
938 | strv_free(argv); | |
939 | if (r < 0) | |
034c6ed7 LP |
940 | goto fail; |
941 | ||
87f0e418 | 942 | if ((r = unit_watch_pid(UNIT(s), pid)) < 0) |
034c6ed7 LP |
943 | /* FIXME: we need to do something here */ |
944 | goto fail; | |
83c60c9f | 945 | |
034c6ed7 LP |
946 | *_pid = pid; |
947 | ||
948 | return 0; | |
949 | ||
950 | fail: | |
e537352b | 951 | unit_unwatch_timer(UNIT(s), &s->timer_watch); |
83c60c9f LP |
952 | |
953 | return r; | |
542563ba LP |
954 | } |
955 | ||
034c6ed7 LP |
956 | static void socket_enter_dead(Socket *s, bool success) { |
957 | assert(s); | |
958 | ||
959 | if (!success) | |
960 | s->failure = true; | |
961 | ||
18c78fb1 | 962 | socket_set_state(s, s->failure ? SOCKET_MAINTENANCE : SOCKET_DEAD); |
034c6ed7 LP |
963 | } |
964 | ||
80876c20 LP |
965 | static void socket_enter_signal(Socket *s, SocketState state, bool success); |
966 | ||
034c6ed7 LP |
967 | static void socket_enter_stop_post(Socket *s, bool success) { |
968 | int r; | |
969 | assert(s); | |
970 | ||
971 | if (!success) | |
972 | s->failure = true; | |
973 | ||
5e94833f LP |
974 | socket_unwatch_control_pid(s); |
975 | ||
a16e1123 LP |
976 | s->control_command_id = SOCKET_EXEC_STOP_POST; |
977 | ||
80876c20 | 978 | if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_POST])) { |
e537352b | 979 | if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0) |
034c6ed7 LP |
980 | goto fail; |
981 | ||
80876c20 LP |
982 | socket_set_state(s, SOCKET_STOP_POST); |
983 | } else | |
984 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, true); | |
034c6ed7 LP |
985 | |
986 | return; | |
987 | ||
988 | fail: | |
6cf6bbc2 | 989 | log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r)); |
80876c20 | 990 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false); |
034c6ed7 LP |
991 | } |
992 | ||
993 | static void socket_enter_signal(Socket *s, SocketState state, bool success) { | |
994 | int r; | |
80876c20 | 995 | bool sent = false; |
034c6ed7 LP |
996 | |
997 | assert(s); | |
998 | ||
999 | if (!success) | |
1000 | s->failure = true; | |
1001 | ||
2e22afe9 LP |
1002 | if (s->exec_context.kill_mode != KILL_NONE) { |
1003 | int sig = (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL; | |
034c6ed7 | 1004 | |
2e22afe9 | 1005 | if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) { |
50159e6a | 1006 | |
4cd1fbcc | 1007 | if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig)) < 0) { |
50159e6a LP |
1008 | if (r != -EAGAIN && r != -ESRCH) |
1009 | goto fail; | |
1010 | } else | |
1011 | sent = true; | |
034c6ed7 | 1012 | } |
50159e6a | 1013 | |
80876c20 | 1014 | if (!sent && s->control_pid > 0) |
2e22afe9 | 1015 | if (kill(s->exec_context.kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH) { |
50159e6a LP |
1016 | r = -errno; |
1017 | goto fail; | |
1018 | } | |
d6ea93e3 | 1019 | } |
034c6ed7 | 1020 | |
e93bc5a6 | 1021 | if (sent && s->control_pid > 0) { |
80876c20 LP |
1022 | if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) |
1023 | goto fail; | |
d6ea93e3 | 1024 | |
80876c20 LP |
1025 | socket_set_state(s, state); |
1026 | } else if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL) | |
1027 | socket_enter_stop_post(s, true); | |
1028 | else | |
034c6ed7 LP |
1029 | socket_enter_dead(s, true); |
1030 | ||
1031 | return; | |
1032 | ||
1033 | fail: | |
9e2f7c11 | 1034 | log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r)); |
034c6ed7 LP |
1035 | |
1036 | if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL) | |
1037 | socket_enter_stop_post(s, false); | |
1038 | else | |
1039 | socket_enter_dead(s, false); | |
1040 | } | |
1041 | ||
1042 | static void socket_enter_stop_pre(Socket *s, bool success) { | |
1043 | int r; | |
1044 | assert(s); | |
1045 | ||
1046 | if (!success) | |
1047 | s->failure = true; | |
1048 | ||
5e94833f LP |
1049 | socket_unwatch_control_pid(s); |
1050 | ||
a16e1123 LP |
1051 | s->control_command_id = SOCKET_EXEC_STOP_PRE; |
1052 | ||
80876c20 | 1053 | if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_PRE])) { |
e537352b | 1054 | if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0) |
034c6ed7 LP |
1055 | goto fail; |
1056 | ||
80876c20 LP |
1057 | socket_set_state(s, SOCKET_STOP_PRE); |
1058 | } else | |
034c6ed7 LP |
1059 | socket_enter_stop_post(s, true); |
1060 | ||
1061 | return; | |
1062 | ||
1063 | fail: | |
6cf6bbc2 | 1064 | log_warning("%s failed to run 'stop-pre' task: %s", s->meta.id, strerror(-r)); |
034c6ed7 LP |
1065 | socket_enter_stop_post(s, false); |
1066 | } | |
1067 | ||
e9af15c3 LP |
1068 | static void socket_enter_listening(Socket *s) { |
1069 | int r; | |
1070 | assert(s); | |
1071 | ||
1072 | if ((r = socket_watch_fds(s)) < 0) { | |
9e2f7c11 | 1073 | log_warning("%s failed to watch sockets: %s", s->meta.id, strerror(-r)); |
e9af15c3 LP |
1074 | goto fail; |
1075 | } | |
1076 | ||
1077 | socket_set_state(s, SOCKET_LISTENING); | |
1078 | return; | |
1079 | ||
1080 | fail: | |
1081 | socket_enter_stop_pre(s, false); | |
1082 | } | |
1083 | ||
034c6ed7 LP |
1084 | static void socket_enter_start_post(Socket *s) { |
1085 | int r; | |
1086 | assert(s); | |
1087 | ||
e9af15c3 | 1088 | if ((r = socket_open_fds(s)) < 0) { |
9e2f7c11 | 1089 | log_warning("%s failed to listen on sockets: %s", s->meta.id, strerror(-r)); |
034c6ed7 LP |
1090 | goto fail; |
1091 | } | |
1092 | ||
5e94833f LP |
1093 | socket_unwatch_control_pid(s); |
1094 | ||
a16e1123 LP |
1095 | s->control_command_id = SOCKET_EXEC_START_POST; |
1096 | ||
80876c20 | 1097 | if ((s->control_command = s->exec_command[SOCKET_EXEC_START_POST])) { |
e537352b | 1098 | if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0) { |
6cf6bbc2 | 1099 | log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r)); |
034c6ed7 LP |
1100 | goto fail; |
1101 | } | |
1102 | ||
80876c20 LP |
1103 | socket_set_state(s, SOCKET_START_POST); |
1104 | } else | |
e9af15c3 | 1105 | socket_enter_listening(s); |
034c6ed7 LP |
1106 | |
1107 | return; | |
1108 | ||
1109 | fail: | |
1110 | socket_enter_stop_pre(s, false); | |
1111 | } | |
1112 | ||
1113 | static void socket_enter_start_pre(Socket *s) { | |
1114 | int r; | |
1115 | assert(s); | |
1116 | ||
5e94833f LP |
1117 | socket_unwatch_control_pid(s); |
1118 | ||
a16e1123 LP |
1119 | s->control_command_id = SOCKET_EXEC_START_PRE; |
1120 | ||
80876c20 | 1121 | if ((s->control_command = s->exec_command[SOCKET_EXEC_START_PRE])) { |
e537352b | 1122 | if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0) |
034c6ed7 LP |
1123 | goto fail; |
1124 | ||
80876c20 LP |
1125 | socket_set_state(s, SOCKET_START_PRE); |
1126 | } else | |
034c6ed7 LP |
1127 | socket_enter_start_post(s); |
1128 | ||
1129 | return; | |
1130 | ||
1131 | fail: | |
6cf6bbc2 | 1132 | log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r)); |
034c6ed7 LP |
1133 | socket_enter_dead(s, false); |
1134 | } | |
1135 | ||
4f2d528d | 1136 | static void socket_enter_running(Socket *s, int cfd) { |
034c6ed7 | 1137 | int r; |
398ef8ba | 1138 | DBusError error; |
034c6ed7 LP |
1139 | |
1140 | assert(s); | |
398ef8ba | 1141 | dbus_error_init(&error); |
034c6ed7 | 1142 | |
ba3e67a7 LP |
1143 | /* We don't take connections anymore if we are supposed to |
1144 | * shut down anyway */ | |
1145 | if (s->meta.job && s->meta.job->type == JOB_STOP) { | |
7c610628 LP |
1146 | if (cfd >= 0) |
1147 | close_nointr_nofail(cfd); | |
1148 | else { | |
1149 | /* Flush all sockets by closing and reopening them */ | |
1150 | socket_close_fds(s); | |
1151 | ||
1152 | if ((r = socket_watch_fds(s)) < 0) { | |
1153 | log_warning("%s failed to watch sockets: %s", s->meta.id, strerror(-r)); | |
1154 | socket_enter_stop_pre(s, false); | |
1155 | } | |
1156 | } | |
1157 | ||
ba3e67a7 LP |
1158 | return; |
1159 | } | |
1160 | ||
4f2d528d | 1161 | if (cfd < 0) { |
398ef8ba | 1162 | if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s->service), JOB_REPLACE, true, &error, NULL)) < 0) |
4f2d528d LP |
1163 | goto fail; |
1164 | ||
1165 | socket_set_state(s, SOCKET_RUNNING); | |
1166 | } else { | |
b4f10a5e | 1167 | char *prefix, *instance = NULL, *name; |
b15bdda8 | 1168 | Service *service; |
4f2d528d | 1169 | |
6cf6bbc2 LP |
1170 | if (s->n_connections >= s->max_connections) { |
1171 | log_warning("Too many incoming connections (%u)", s->n_connections); | |
1172 | close_nointr_nofail(cfd); | |
1173 | return; | |
1174 | } | |
1175 | ||
b15bdda8 LP |
1176 | if ((r = socket_instantiate_service(s)) < 0) |
1177 | goto fail; | |
1178 | ||
1179 | if ((r = instance_from_socket(cfd, s->n_accepted, &instance)) < 0) | |
4f2d528d LP |
1180 | goto fail; |
1181 | ||
4cd1fbcc | 1182 | if (!(prefix = unit_name_to_prefix(s->meta.id))) { |
4f2d528d LP |
1183 | free(instance); |
1184 | r = -ENOMEM; | |
1185 | goto fail; | |
1186 | } | |
1187 | ||
1188 | name = unit_name_build(prefix, instance, ".service"); | |
1189 | free(prefix); | |
1190 | free(instance); | |
1191 | ||
b6dbbe1c | 1192 | if (!name) { |
4f2d528d | 1193 | r = -ENOMEM; |
b6dbbe1c LP |
1194 | goto fail; |
1195 | } | |
4f2d528d | 1196 | |
b15bdda8 LP |
1197 | if ((r = unit_add_name(UNIT(s->service), name)) < 0) { |
1198 | free(name); | |
4f2d528d | 1199 | goto fail; |
b15bdda8 LP |
1200 | } |
1201 | ||
1202 | service = s->service; | |
1203 | s->service = NULL; | |
1204 | s->n_accepted ++; | |
4f2d528d | 1205 | |
6c073082 LP |
1206 | service->meta.no_gc = false; |
1207 | ||
b15bdda8 LP |
1208 | unit_choose_id(UNIT(service), name); |
1209 | free(name); | |
1210 | ||
1211 | if ((r = service_set_socket_fd(service, cfd, s)) < 0) | |
4f2d528d LP |
1212 | goto fail; |
1213 | ||
1214 | cfd = -1; | |
6cf6bbc2 LP |
1215 | s->n_connections ++; |
1216 | ||
b15bdda8 | 1217 | if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(service), JOB_REPLACE, true, &error, NULL)) < 0) |
4f2d528d LP |
1218 | goto fail; |
1219 | } | |
034c6ed7 | 1220 | |
034c6ed7 LP |
1221 | return; |
1222 | ||
1223 | fail: | |
398ef8ba | 1224 | log_warning("%s failed to queue socket startup job: %s", s->meta.id, bus_error(&error, r)); |
80876c20 | 1225 | socket_enter_stop_pre(s, false); |
4f2d528d LP |
1226 | |
1227 | if (cfd >= 0) | |
1228 | close_nointr_nofail(cfd); | |
398ef8ba LP |
1229 | |
1230 | dbus_error_free(&error); | |
034c6ed7 LP |
1231 | } |
1232 | ||
1233 | static void socket_run_next(Socket *s, bool success) { | |
1234 | int r; | |
1235 | ||
1236 | assert(s); | |
1237 | assert(s->control_command); | |
1238 | assert(s->control_command->command_next); | |
1239 | ||
1240 | if (!success) | |
1241 | s->failure = true; | |
1242 | ||
5e94833f LP |
1243 | socket_unwatch_control_pid(s); |
1244 | ||
034c6ed7 LP |
1245 | s->control_command = s->control_command->command_next; |
1246 | ||
e537352b | 1247 | if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0) |
034c6ed7 LP |
1248 | goto fail; |
1249 | ||
1250 | return; | |
1251 | ||
1252 | fail: | |
6cf6bbc2 | 1253 | log_warning("%s failed to run next task: %s", s->meta.id, strerror(-r)); |
80876c20 LP |
1254 | |
1255 | if (s->state == SOCKET_START_POST) | |
1256 | socket_enter_stop_pre(s, false); | |
034c6ed7 LP |
1257 | else if (s->state == SOCKET_STOP_POST) |
1258 | socket_enter_dead(s, false); | |
1259 | else | |
80876c20 | 1260 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false); |
034c6ed7 LP |
1261 | } |
1262 | ||
87f0e418 LP |
1263 | static int socket_start(Unit *u) { |
1264 | Socket *s = SOCKET(u); | |
83c60c9f LP |
1265 | |
1266 | assert(s); | |
1267 | ||
034c6ed7 LP |
1268 | /* We cannot fulfill this request right now, try again later |
1269 | * please! */ | |
1270 | if (s->state == SOCKET_STOP_PRE || | |
1271 | s->state == SOCKET_STOP_PRE_SIGKILL || | |
1272 | s->state == SOCKET_STOP_PRE_SIGTERM || | |
1273 | s->state == SOCKET_STOP_POST || | |
80876c20 LP |
1274 | s->state == SOCKET_FINAL_SIGTERM || |
1275 | s->state == SOCKET_FINAL_SIGKILL) | |
034c6ed7 LP |
1276 | return -EAGAIN; |
1277 | ||
83c60c9f LP |
1278 | if (s->state == SOCKET_START_PRE || |
1279 | s->state == SOCKET_START_POST) | |
034c6ed7 | 1280 | return 0; |
83c60c9f | 1281 | |
034c6ed7 | 1282 | /* Cannot run this without the service being around */ |
4f2d528d LP |
1283 | if (s->service) { |
1284 | if (s->service->meta.load_state != UNIT_LOADED) | |
1285 | return -ENOENT; | |
1286 | ||
1287 | /* If the service is alredy actvie we cannot start the | |
1288 | * socket */ | |
1289 | if (s->service->state != SERVICE_DEAD && | |
18c78fb1 | 1290 | s->service->state != SERVICE_MAINTENANCE && |
4f2d528d LP |
1291 | s->service->state != SERVICE_AUTO_RESTART) |
1292 | return -EBUSY; | |
1293 | } | |
e537352b | 1294 | |
18c78fb1 | 1295 | assert(s->state == SOCKET_DEAD || s->state == SOCKET_MAINTENANCE); |
83c60c9f | 1296 | |
034c6ed7 LP |
1297 | s->failure = false; |
1298 | socket_enter_start_pre(s); | |
1299 | return 0; | |
1300 | } | |
83c60c9f | 1301 | |
87f0e418 LP |
1302 | static int socket_stop(Unit *u) { |
1303 | Socket *s = SOCKET(u); | |
034c6ed7 LP |
1304 | |
1305 | assert(s); | |
1306 | ||
e537352b LP |
1307 | /* Already on it */ |
1308 | if (s->state == SOCKET_STOP_PRE || | |
1309 | s->state == SOCKET_STOP_PRE_SIGTERM || | |
1310 | s->state == SOCKET_STOP_PRE_SIGKILL || | |
1311 | s->state == SOCKET_STOP_POST || | |
80876c20 | 1312 | s->state == SOCKET_FINAL_SIGTERM || |
3f6c78dc | 1313 | s->state == SOCKET_FINAL_SIGKILL) |
e537352b LP |
1314 | return 0; |
1315 | ||
3f6c78dc LP |
1316 | /* If there's already something running we go directly into |
1317 | * kill mode. */ | |
1318 | if (s->state == SOCKET_START_PRE || | |
1319 | s->state == SOCKET_START_POST) { | |
1320 | socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, true); | |
1321 | return -EAGAIN; | |
1322 | } | |
1323 | ||
034c6ed7 | 1324 | assert(s->state == SOCKET_LISTENING || s->state == SOCKET_RUNNING); |
83c60c9f | 1325 | |
034c6ed7 | 1326 | socket_enter_stop_pre(s, true); |
542563ba LP |
1327 | return 0; |
1328 | } | |
1329 | ||
a16e1123 LP |
1330 | static int socket_serialize(Unit *u, FILE *f, FDSet *fds) { |
1331 | Socket *s = SOCKET(u); | |
1332 | SocketPort *p; | |
1333 | int r; | |
1334 | ||
1335 | assert(u); | |
1336 | assert(f); | |
1337 | assert(fds); | |
1338 | ||
1339 | unit_serialize_item(u, f, "state", socket_state_to_string(s->state)); | |
1340 | unit_serialize_item(u, f, "failure", yes_no(s->failure)); | |
1341 | unit_serialize_item_format(u, f, "n-accepted", "%u", s->n_accepted); | |
1342 | ||
1343 | if (s->control_pid > 0) | |
5925dd3c | 1344 | unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid); |
a16e1123 LP |
1345 | |
1346 | if (s->control_command_id >= 0) | |
1347 | unit_serialize_item(u, f, "control-command", socket_exec_command_to_string(s->control_command_id)); | |
1348 | ||
1349 | LIST_FOREACH(port, p, s->ports) { | |
1350 | int copy; | |
1351 | ||
1352 | if (p->fd < 0) | |
1353 | continue; | |
1354 | ||
1355 | if ((copy = fdset_put_dup(fds, p->fd)) < 0) | |
1356 | return copy; | |
1357 | ||
1358 | if (p->type == SOCKET_SOCKET) { | |
1359 | char *t; | |
1360 | ||
1361 | if ((r = socket_address_print(&p->address, &t)) < 0) | |
1362 | return r; | |
1363 | ||
27ca8d7a | 1364 | unit_serialize_item_format(u, f, "socket", "%i %i %s", copy, p->address.type, t); |
a16e1123 LP |
1365 | free(t); |
1366 | } else { | |
1367 | assert(p->type == SOCKET_FIFO); | |
1368 | unit_serialize_item_format(u, f, "fifo", "%i %s", copy, p->path); | |
1369 | } | |
1370 | } | |
1371 | ||
1372 | return 0; | |
1373 | } | |
1374 | ||
1375 | static int socket_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
1376 | Socket *s = SOCKET(u); | |
a16e1123 LP |
1377 | |
1378 | assert(u); | |
1379 | assert(key); | |
1380 | assert(value); | |
1381 | assert(fds); | |
1382 | ||
1383 | if (streq(key, "state")) { | |
1384 | SocketState state; | |
1385 | ||
1386 | if ((state = socket_state_from_string(value)) < 0) | |
1387 | log_debug("Failed to parse state value %s", value); | |
1388 | else | |
1389 | s->deserialized_state = state; | |
1390 | } else if (streq(key, "failure")) { | |
1391 | int b; | |
1392 | ||
1393 | if ((b = parse_boolean(value)) < 0) | |
1394 | log_debug("Failed to parse failure value %s", value); | |
1395 | else | |
1396 | s->failure = b || s->failure; | |
1397 | ||
1398 | } else if (streq(key, "n-accepted")) { | |
1399 | unsigned k; | |
1400 | ||
e364ad06 | 1401 | if (safe_atou(value, &k) < 0) |
a16e1123 LP |
1402 | log_debug("Failed to parse n-accepted value %s", value); |
1403 | else | |
1404 | s->n_accepted += k; | |
1405 | } else if (streq(key, "control-pid")) { | |
5925dd3c | 1406 | pid_t pid; |
a16e1123 | 1407 | |
e364ad06 | 1408 | if (parse_pid(value, &pid) < 0) |
a16e1123 LP |
1409 | log_debug("Failed to parse control-pid value %s", value); |
1410 | else | |
5925dd3c | 1411 | s->control_pid = pid; |
a16e1123 LP |
1412 | } else if (streq(key, "control-command")) { |
1413 | SocketExecCommand id; | |
1414 | ||
1415 | if ((id = socket_exec_command_from_string(value)) < 0) | |
1416 | log_debug("Failed to parse exec-command value %s", value); | |
1417 | else { | |
1418 | s->control_command_id = id; | |
1419 | s->control_command = s->exec_command[id]; | |
1420 | } | |
1421 | } else if (streq(key, "fifo")) { | |
1422 | int fd, skip = 0; | |
1423 | SocketPort *p; | |
1424 | ||
1425 | if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) | |
1426 | log_debug("Failed to parse fifo value %s", value); | |
1427 | else { | |
1428 | ||
1429 | LIST_FOREACH(port, p, s->ports) | |
1430 | if (streq(p->path, value+skip)) | |
1431 | break; | |
1432 | ||
1433 | if (p) { | |
1434 | if (p->fd >= 0) | |
1435 | close_nointr_nofail(p->fd); | |
1436 | p->fd = fdset_remove(fds, fd); | |
1437 | } | |
1438 | } | |
1439 | ||
1440 | } else if (streq(key, "socket")) { | |
27ca8d7a | 1441 | int fd, type, skip = 0; |
a16e1123 LP |
1442 | SocketPort *p; |
1443 | ||
27ca8d7a | 1444 | if (sscanf(value, "%i %i %n", &fd, &type, &skip) < 2 || fd < 0 || type < 0 || !fdset_contains(fds, fd)) |
a16e1123 LP |
1445 | log_debug("Failed to parse socket value %s", value); |
1446 | else { | |
1447 | ||
1448 | LIST_FOREACH(port, p, s->ports) | |
27ca8d7a | 1449 | if (socket_address_is(&p->address, value+skip, type)) |
a16e1123 LP |
1450 | break; |
1451 | ||
1452 | if (p) { | |
1453 | if (p->fd >= 0) | |
1454 | close_nointr_nofail(p->fd); | |
1455 | p->fd = fdset_remove(fds, fd); | |
1456 | } | |
1457 | } | |
1458 | ||
1459 | } else | |
1460 | log_debug("Unknown serialization key '%s'", key); | |
1461 | ||
1462 | return 0; | |
1463 | } | |
1464 | ||
87f0e418 LP |
1465 | static UnitActiveState socket_active_state(Unit *u) { |
1466 | assert(u); | |
5cb5a6ff | 1467 | |
acbb0225 | 1468 | return state_translation_table[SOCKET(u)->state]; |
5cb5a6ff LP |
1469 | } |
1470 | ||
10a94420 LP |
1471 | static const char *socket_sub_state_to_string(Unit *u) { |
1472 | assert(u); | |
1473 | ||
a16e1123 | 1474 | return socket_state_to_string(SOCKET(u)->state); |
10a94420 LP |
1475 | } |
1476 | ||
6cf6bbc2 LP |
1477 | static bool socket_check_gc(Unit *u) { |
1478 | Socket *s = SOCKET(u); | |
1479 | ||
1480 | assert(u); | |
1481 | ||
1482 | return s->n_connections > 0; | |
1483 | } | |
1484 | ||
acbb0225 | 1485 | static void socket_fd_event(Unit *u, int fd, uint32_t events, Watch *w) { |
87f0e418 | 1486 | Socket *s = SOCKET(u); |
4f2d528d | 1487 | int cfd = -1; |
9152c765 | 1488 | |
034c6ed7 | 1489 | assert(s); |
8d567588 | 1490 | assert(fd >= 0); |
9152c765 | 1491 | |
871d7de4 LP |
1492 | if (s->state != SOCKET_LISTENING) |
1493 | return; | |
1494 | ||
9e2f7c11 | 1495 | log_debug("Incoming traffic on %s", u->meta.id); |
9152c765 | 1496 | |
4f2d528d LP |
1497 | if (events != EPOLLIN) { |
1498 | log_error("Got invalid poll event on socket."); | |
8d567588 | 1499 | goto fail; |
4f2d528d LP |
1500 | } |
1501 | ||
cabab516 | 1502 | if (w->socket_accept) { |
4f2d528d LP |
1503 | for (;;) { |
1504 | ||
1505 | if ((cfd = accept4(fd, NULL, NULL, SOCK_NONBLOCK)) < 0) { | |
1506 | ||
1507 | if (errno == EINTR) | |
1508 | continue; | |
1509 | ||
1510 | log_error("Failed to accept socket: %m"); | |
8d567588 | 1511 | goto fail; |
4f2d528d LP |
1512 | } |
1513 | ||
1514 | break; | |
1515 | } | |
4fd5948e LP |
1516 | |
1517 | socket_apply_socket_options(s, cfd); | |
4f2d528d | 1518 | } |
9152c765 | 1519 | |
4f2d528d | 1520 | socket_enter_running(s, cfd); |
8d567588 LP |
1521 | return; |
1522 | ||
1523 | fail: | |
1524 | socket_enter_stop_pre(s, false); | |
9152c765 LP |
1525 | } |
1526 | ||
87f0e418 LP |
1527 | static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
1528 | Socket *s = SOCKET(u); | |
034c6ed7 | 1529 | bool success; |
5cb5a6ff LP |
1530 | |
1531 | assert(s); | |
034c6ed7 | 1532 | assert(pid >= 0); |
5cb5a6ff | 1533 | |
8c47c732 LP |
1534 | if (pid != s->control_pid) |
1535 | return; | |
542563ba | 1536 | |
034c6ed7 LP |
1537 | s->control_pid = 0; |
1538 | ||
8c47c732 | 1539 | success = is_clean_exit(code, status); |
8c47c732 | 1540 | |
b708e7ce | 1541 | if (s->control_command) { |
b58b4116 | 1542 | exec_status_exit(&s->control_command->exec_status, pid, code, status); |
a16e1123 | 1543 | |
b708e7ce LP |
1544 | if (s->control_command->ignore) |
1545 | success = true; | |
1546 | } | |
1547 | ||
92abbefb LP |
1548 | log_full(success ? LOG_DEBUG : LOG_NOTICE, |
1549 | "%s control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status); | |
b708e7ce | 1550 | s->failure = s->failure || !success; |
034c6ed7 | 1551 | |
a16e1123 LP |
1552 | if (s->control_command && s->control_command->command_next && success) { |
1553 | log_debug("%s running next command for state %s", u->meta.id, socket_state_to_string(s->state)); | |
034c6ed7 | 1554 | socket_run_next(s, success); |
acbb0225 | 1555 | } else { |
a16e1123 LP |
1556 | s->control_command = NULL; |
1557 | s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID; | |
1558 | ||
034c6ed7 LP |
1559 | /* No further commands for this step, so let's figure |
1560 | * out what to do next */ | |
5cb5a6ff | 1561 | |
a16e1123 | 1562 | log_debug("%s got final SIGCHLD for state %s", u->meta.id, socket_state_to_string(s->state)); |
acbb0225 | 1563 | |
034c6ed7 LP |
1564 | switch (s->state) { |
1565 | ||
1566 | case SOCKET_START_PRE: | |
1567 | if (success) | |
acbb0225 | 1568 | socket_enter_start_post(s); |
034c6ed7 | 1569 | else |
80876c20 | 1570 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false); |
034c6ed7 LP |
1571 | break; |
1572 | ||
1573 | case SOCKET_START_POST: | |
1574 | if (success) | |
e9af15c3 | 1575 | socket_enter_listening(s); |
034c6ed7 LP |
1576 | else |
1577 | socket_enter_stop_pre(s, false); | |
1578 | break; | |
1579 | ||
1580 | case SOCKET_STOP_PRE: | |
1581 | case SOCKET_STOP_PRE_SIGTERM: | |
1582 | case SOCKET_STOP_PRE_SIGKILL: | |
1583 | socket_enter_stop_post(s, success); | |
1584 | break; | |
1585 | ||
1586 | case SOCKET_STOP_POST: | |
80876c20 LP |
1587 | case SOCKET_FINAL_SIGTERM: |
1588 | case SOCKET_FINAL_SIGKILL: | |
034c6ed7 LP |
1589 | socket_enter_dead(s, success); |
1590 | break; | |
1591 | ||
1592 | default: | |
1593 | assert_not_reached("Uh, control process died at wrong time."); | |
1594 | } | |
1595 | } | |
1596 | } | |
5cb5a6ff | 1597 | |
acbb0225 | 1598 | static void socket_timer_event(Unit *u, uint64_t elapsed, Watch *w) { |
87f0e418 | 1599 | Socket *s = SOCKET(u); |
5cb5a6ff | 1600 | |
034c6ed7 LP |
1601 | assert(s); |
1602 | assert(elapsed == 1); | |
acbb0225 | 1603 | assert(w == &s->timer_watch); |
034c6ed7 LP |
1604 | |
1605 | switch (s->state) { | |
1606 | ||
1607 | case SOCKET_START_PRE: | |
9e2f7c11 | 1608 | log_warning("%s starting timed out. Terminating.", u->meta.id); |
80876c20 LP |
1609 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false); |
1610 | ||
034c6ed7 | 1611 | case SOCKET_START_POST: |
9e2f7c11 | 1612 | log_warning("%s starting timed out. Stopping.", u->meta.id); |
034c6ed7 LP |
1613 | socket_enter_stop_pre(s, false); |
1614 | break; | |
1615 | ||
1616 | case SOCKET_STOP_PRE: | |
9e2f7c11 | 1617 | log_warning("%s stopping timed out. Terminating.", u->meta.id); |
034c6ed7 LP |
1618 | socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, false); |
1619 | break; | |
1620 | ||
1621 | case SOCKET_STOP_PRE_SIGTERM: | |
9e2f7c11 | 1622 | log_warning("%s stopping timed out. Killing.", u->meta.id); |
034c6ed7 LP |
1623 | socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, false); |
1624 | break; | |
1625 | ||
1626 | case SOCKET_STOP_PRE_SIGKILL: | |
9e2f7c11 | 1627 | log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id); |
034c6ed7 LP |
1628 | socket_enter_stop_post(s, false); |
1629 | break; | |
1630 | ||
1631 | case SOCKET_STOP_POST: | |
9e2f7c11 | 1632 | log_warning("%s stopping timed out (2). Terminating.", u->meta.id); |
80876c20 | 1633 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false); |
034c6ed7 LP |
1634 | break; |
1635 | ||
80876c20 | 1636 | case SOCKET_FINAL_SIGTERM: |
9e2f7c11 | 1637 | log_warning("%s stopping timed out (2). Killing.", u->meta.id); |
80876c20 | 1638 | socket_enter_signal(s, SOCKET_FINAL_SIGKILL, false); |
034c6ed7 LP |
1639 | break; |
1640 | ||
80876c20 | 1641 | case SOCKET_FINAL_SIGKILL: |
18c78fb1 | 1642 | log_warning("%s still around after SIGKILL (2). Entering maintenance mode.", u->meta.id); |
034c6ed7 LP |
1643 | socket_enter_dead(s, false); |
1644 | break; | |
1645 | ||
1646 | default: | |
1647 | assert_not_reached("Timeout at wrong time."); | |
1648 | } | |
5cb5a6ff LP |
1649 | } |
1650 | ||
44d8db9e LP |
1651 | int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds) { |
1652 | int *rfds; | |
1653 | unsigned rn_fds, k; | |
1654 | SocketPort *p; | |
1655 | ||
1656 | assert(s); | |
1657 | assert(fds); | |
1658 | assert(n_fds); | |
1659 | ||
1660 | /* Called from the service code for requesting our fds */ | |
1661 | ||
1662 | rn_fds = 0; | |
1663 | LIST_FOREACH(port, p, s->ports) | |
1664 | if (p->fd >= 0) | |
1665 | rn_fds++; | |
1666 | ||
e364ad06 | 1667 | if (!(rfds = new(int, rn_fds))) |
44d8db9e LP |
1668 | return -ENOMEM; |
1669 | ||
1670 | k = 0; | |
1671 | LIST_FOREACH(port, p, s->ports) | |
1672 | if (p->fd >= 0) | |
1673 | rfds[k++] = p->fd; | |
1674 | ||
1675 | assert(k == rn_fds); | |
1676 | ||
1677 | *fds = rfds; | |
1678 | *n_fds = rn_fds; | |
1679 | ||
1680 | return 0; | |
1681 | } | |
1682 | ||
ceee3d82 LP |
1683 | void socket_notify_service_dead(Socket *s) { |
1684 | assert(s); | |
1685 | ||
6cf6bbc2 LP |
1686 | /* The service is dead. Dang! |
1687 | * | |
1688 | * This is strictly for one-instance-for-all-connections | |
1689 | * services. */ | |
ceee3d82 LP |
1690 | |
1691 | if (s->state == SOCKET_RUNNING) { | |
9e2f7c11 | 1692 | log_debug("%s got notified about service death.", s->meta.id); |
ceee3d82 LP |
1693 | socket_enter_listening(s); |
1694 | } | |
1695 | } | |
1696 | ||
6cf6bbc2 LP |
1697 | void socket_connection_unref(Socket *s) { |
1698 | assert(s); | |
1699 | ||
1700 | /* The service is dead. Yay! | |
1701 | * | |
1702 | * This is strictly for one-onstance-per-connection | |
1703 | * services. */ | |
1704 | ||
1705 | assert(s->n_connections > 0); | |
1706 | s->n_connections--; | |
1707 | ||
1708 | log_debug("%s: One connection closed, %u left.", s->meta.id, s->n_connections); | |
1709 | } | |
1710 | ||
5632e374 LP |
1711 | static void socket_reset_maintenance(Unit *u) { |
1712 | Socket *s = SOCKET(u); | |
1713 | ||
1714 | assert(s); | |
1715 | ||
1716 | if (s->state == SOCKET_MAINTENANCE) | |
1717 | socket_set_state(s, SOCKET_DEAD); | |
1718 | ||
1719 | s->failure = false; | |
1720 | } | |
1721 | ||
a16e1123 LP |
1722 | static const char* const socket_state_table[_SOCKET_STATE_MAX] = { |
1723 | [SOCKET_DEAD] = "dead", | |
1724 | [SOCKET_START_PRE] = "start-pre", | |
1725 | [SOCKET_START_POST] = "start-post", | |
1726 | [SOCKET_LISTENING] = "listening", | |
1727 | [SOCKET_RUNNING] = "running", | |
1728 | [SOCKET_STOP_PRE] = "stop-pre", | |
1729 | [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm", | |
1730 | [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill", | |
1731 | [SOCKET_STOP_POST] = "stop-post", | |
1732 | [SOCKET_FINAL_SIGTERM] = "final-sigterm", | |
1733 | [SOCKET_FINAL_SIGKILL] = "final-sigkill", | |
18c78fb1 | 1734 | [SOCKET_MAINTENANCE] = "maintenance" |
a16e1123 LP |
1735 | }; |
1736 | ||
1737 | DEFINE_STRING_TABLE_LOOKUP(socket_state, SocketState); | |
1738 | ||
1739 | static const char* const socket_exec_command_table[_SOCKET_EXEC_COMMAND_MAX] = { | |
1740 | [SOCKET_EXEC_START_PRE] = "StartPre", | |
1741 | [SOCKET_EXEC_START_POST] = "StartPost", | |
1742 | [SOCKET_EXEC_STOP_PRE] = "StopPre", | |
1743 | [SOCKET_EXEC_STOP_POST] = "StopPost" | |
1744 | }; | |
1745 | ||
1746 | DEFINE_STRING_TABLE_LOOKUP(socket_exec_command, SocketExecCommand); | |
1747 | ||
87f0e418 | 1748 | const UnitVTable socket_vtable = { |
5cb5a6ff LP |
1749 | .suffix = ".socket", |
1750 | ||
034c6ed7 LP |
1751 | .init = socket_init, |
1752 | .done = socket_done, | |
a16e1123 LP |
1753 | .load = socket_load, |
1754 | ||
1755 | .coldplug = socket_coldplug, | |
034c6ed7 | 1756 | |
5cb5a6ff LP |
1757 | .dump = socket_dump, |
1758 | ||
542563ba LP |
1759 | .start = socket_start, |
1760 | .stop = socket_stop, | |
5cb5a6ff | 1761 | |
a16e1123 LP |
1762 | .serialize = socket_serialize, |
1763 | .deserialize_item = socket_deserialize_item, | |
1764 | ||
5cb5a6ff | 1765 | .active_state = socket_active_state, |
10a94420 | 1766 | .sub_state_to_string = socket_sub_state_to_string, |
5cb5a6ff | 1767 | |
6cf6bbc2 LP |
1768 | .check_gc = socket_check_gc, |
1769 | ||
9152c765 | 1770 | .fd_event = socket_fd_event, |
034c6ed7 | 1771 | .sigchld_event = socket_sigchld_event, |
4139c1b2 LP |
1772 | .timer_event = socket_timer_event, |
1773 | ||
5632e374 LP |
1774 | .reset_maintenance = socket_reset_maintenance, |
1775 | ||
4139c1b2 | 1776 | .bus_message_handler = bus_socket_message_handler |
5cb5a6ff | 1777 | }; |