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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 | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
83c60c9f LP |
22 | #include <sys/stat.h> |
23 | #include <unistd.h> | |
24 | #include <errno.h> | |
25 | #include <fcntl.h> | |
f94ea366 | 26 | #include <sys/epoll.h> |
034c6ed7 | 27 | #include <signal.h> |
4f2d528d | 28 | #include <arpa/inet.h> |
718db961 | 29 | #include <netinet/tcp.h> |
916abb21 | 30 | #include <mqueue.h> |
83c60c9f | 31 | |
718db961 | 32 | #include "sd-event.h" |
83c60c9f | 33 | #include "log.h" |
9e2f7c11 | 34 | #include "strv.h" |
49e942b2 | 35 | #include "mkdir.h" |
9eb977db | 36 | #include "path-util.h" |
4f2d528d | 37 | #include "unit-name.h" |
41f9172f | 38 | #include "unit-printf.h" |
4fd5948e | 39 | #include "missing.h" |
a40eb732 | 40 | #include "special.h" |
e51bc1a2 | 41 | #include "label.h" |
9a57c629 | 42 | #include "exit-status.h" |
f6a6225e | 43 | #include "def.h" |
5a045dad | 44 | #include "smack-util.h" |
718db961 LP |
45 | #include "bus-util.h" |
46 | #include "bus-error.h" | |
d7b8eec7 | 47 | #include "selinux-util.h" |
e821075a LP |
48 | #include "dbus-socket.h" |
49 | #include "unit.h" | |
50 | #include "socket.h" | |
6482f626 | 51 | #include "formats-util.h" |
83c60c9f | 52 | |
acbb0225 | 53 | static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = { |
87f0e418 LP |
54 | [SOCKET_DEAD] = UNIT_INACTIVE, |
55 | [SOCKET_START_PRE] = UNIT_ACTIVATING, | |
3900e5fd | 56 | [SOCKET_START_CHOWN] = UNIT_ACTIVATING, |
87f0e418 LP |
57 | [SOCKET_START_POST] = UNIT_ACTIVATING, |
58 | [SOCKET_LISTENING] = UNIT_ACTIVE, | |
59 | [SOCKET_RUNNING] = UNIT_ACTIVE, | |
60 | [SOCKET_STOP_PRE] = UNIT_DEACTIVATING, | |
61 | [SOCKET_STOP_PRE_SIGTERM] = UNIT_DEACTIVATING, | |
62 | [SOCKET_STOP_PRE_SIGKILL] = UNIT_DEACTIVATING, | |
63 | [SOCKET_STOP_POST] = UNIT_DEACTIVATING, | |
80876c20 LP |
64 | [SOCKET_FINAL_SIGTERM] = UNIT_DEACTIVATING, |
65 | [SOCKET_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 66 | [SOCKET_FAILED] = UNIT_FAILED |
83c60c9f | 67 | }; |
5cb5a6ff | 68 | |
718db961 LP |
69 | static int socket_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
70 | static int socket_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); | |
71 | ||
a16e1123 LP |
72 | static void socket_init(Unit *u) { |
73 | Socket *s = SOCKET(u); | |
74 | ||
75 | assert(u); | |
ac155bb8 | 76 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 77 | |
a16e1123 | 78 | s->backlog = SOMAXCONN; |
1f19a534 | 79 | s->timeout_usec = u->manager->default_timeout_start_usec; |
a16e1123 | 80 | s->directory_mode = 0755; |
9131f660 | 81 | s->socket_mode = 0666; |
a16e1123 | 82 | |
6cf6bbc2 LP |
83 | s->max_connections = 64; |
84 | ||
4fd5948e | 85 | s->priority = -1; |
4fd5948e LP |
86 | s->ip_tos = -1; |
87 | s->ip_ttl = -1; | |
4fd5948e | 88 | s->mark = -1; |
4fd5948e | 89 | |
ac155bb8 MS |
90 | s->exec_context.std_output = u->manager->default_std_output; |
91 | s->exec_context.std_error = u->manager->default_std_error; | |
085afe36 | 92 | |
a16e1123 LP |
93 | s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID; |
94 | } | |
acbb0225 | 95 | |
5e94833f LP |
96 | static void socket_unwatch_control_pid(Socket *s) { |
97 | assert(s); | |
98 | ||
99 | if (s->control_pid <= 0) | |
100 | return; | |
101 | ||
102 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
103 | s->control_pid = 0; | |
104 | } | |
105 | ||
74051b9b | 106 | void socket_free_ports(Socket *s) { |
034c6ed7 LP |
107 | SocketPort *p; |
108 | ||
109 | assert(s); | |
110 | ||
111 | while ((p = s->ports)) { | |
71fda00f | 112 | LIST_REMOVE(port, s->ports, p); |
034c6ed7 | 113 | |
718db961 LP |
114 | sd_event_source_unref(p->event_source); |
115 | ||
03e334a1 | 116 | safe_close(p->fd); |
034c6ed7 LP |
117 | free(p->path); |
118 | free(p); | |
119 | } | |
74051b9b LP |
120 | } |
121 | ||
122 | static void socket_done(Unit *u) { | |
123 | Socket *s = SOCKET(u); | |
124 | ||
125 | assert(s); | |
126 | ||
127 | socket_free_ports(s); | |
034c6ed7 | 128 | |
613b411c | 129 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); |
e537352b | 130 | exec_command_free_array(s->exec_command, _SOCKET_EXEC_COMMAND_MAX); |
034c6ed7 LP |
131 | s->control_command = NULL; |
132 | ||
5e94833f | 133 | socket_unwatch_control_pid(s); |
034c6ed7 | 134 | |
57020a3a | 135 | unit_ref_unset(&s->service); |
034c6ed7 | 136 | |
cebf8b20 TT |
137 | free(s->tcp_congestion); |
138 | s->tcp_congestion = NULL; | |
139 | ||
acbb0225 | 140 | free(s->bind_to_device); |
e537352b | 141 | s->bind_to_device = NULL; |
acbb0225 | 142 | |
0eb59ccf AK |
143 | free(s->smack); |
144 | free(s->smack_ip_in); | |
145 | free(s->smack_ip_out); | |
146 | ||
811ba7a0 LP |
147 | strv_free(s->symlinks); |
148 | ||
3900e5fd LP |
149 | free(s->user); |
150 | free(s->group); | |
151 | ||
718db961 LP |
152 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
153 | } | |
154 | ||
155 | static int socket_arm_timer(Socket *s) { | |
156 | int r; | |
157 | ||
158 | assert(s); | |
159 | ||
160 | if (s->timeout_usec <= 0) { | |
161 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
162 | return 0; | |
163 | } | |
164 | ||
165 | if (s->timer_event_source) { | |
166 | r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + s->timeout_usec); | |
167 | if (r < 0) | |
168 | return r; | |
169 | ||
170 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
171 | } | |
172 | ||
7dfbe2e3 | 173 | r = sd_event_add_time( |
6a0f1f6d LP |
174 | UNIT(s)->manager->event, |
175 | &s->timer_event_source, | |
176 | CLOCK_MONOTONIC, | |
177 | now(CLOCK_MONOTONIC) + s->timeout_usec, 0, | |
178 | socket_dispatch_timer, s); | |
7dfbe2e3 TG |
179 | if (r < 0) |
180 | return r; | |
181 | ||
182 | (void) sd_event_source_set_description(s->timer_event_source, "socket-timer"); | |
183 | ||
184 | return 0; | |
5cb5a6ff LP |
185 | } |
186 | ||
8b835fcc ZJS |
187 | int socket_instantiate_service(Socket *s) { |
188 | _cleanup_free_ char *prefix = NULL, *name = NULL; | |
b15bdda8 LP |
189 | int r; |
190 | Unit *u; | |
191 | ||
192 | assert(s); | |
193 | ||
194 | /* This fills in s->service if it isn't filled in yet. For | |
195 | * Accept=yes sockets we create the next connection service | |
196 | * here. For Accept=no this is mostly a NOP since the service | |
197 | * is figured out at load time anyway. */ | |
198 | ||
7410616c | 199 | if (UNIT_DEREF(s->service)) |
b15bdda8 LP |
200 | return 0; |
201 | ||
7410616c LP |
202 | if (!s->accept) |
203 | return 0; | |
204 | ||
205 | r = unit_name_to_prefix(UNIT(s)->id, &prefix); | |
206 | if (r < 0) | |
207 | return r; | |
b15bdda8 | 208 | |
315db1a8 | 209 | if (asprintf(&name, "%s@%u.service", prefix, s->n_accepted) < 0) |
b15bdda8 LP |
210 | return -ENOMEM; |
211 | ||
1124fe6f | 212 | r = manager_load_unit(UNIT(s)->manager, name, NULL, NULL, &u); |
b15bdda8 LP |
213 | if (r < 0) |
214 | return r; | |
215 | ||
ac155bb8 | 216 | u->no_gc = true; |
57020a3a LP |
217 | unit_ref_set(&s->service, u); |
218 | ||
219 | return unit_add_two_dependencies(UNIT(s), UNIT_BEFORE, UNIT_TRIGGERS, u, false); | |
b15bdda8 LP |
220 | } |
221 | ||
4f2d528d LP |
222 | static bool have_non_accept_socket(Socket *s) { |
223 | SocketPort *p; | |
224 | ||
225 | assert(s); | |
226 | ||
227 | if (!s->accept) | |
228 | return true; | |
229 | ||
dd5ad9d4 LP |
230 | LIST_FOREACH(port, p, s->ports) { |
231 | ||
232 | if (p->type != SOCKET_SOCKET) | |
233 | return true; | |
234 | ||
4f2d528d LP |
235 | if (!socket_address_can_accept(&p->address)) |
236 | return true; | |
dd5ad9d4 | 237 | } |
4f2d528d LP |
238 | |
239 | return false; | |
240 | } | |
241 | ||
a57f7e2c | 242 | static int socket_add_mount_links(Socket *s) { |
6e2ef85b | 243 | SocketPort *p; |
6e2ef85b LP |
244 | int r; |
245 | ||
246 | assert(s); | |
6e2ef85b | 247 | |
a57f7e2c LP |
248 | LIST_FOREACH(port, p, s->ports) { |
249 | const char *path = NULL; | |
6e2ef85b | 250 | |
a57f7e2c LP |
251 | if (p->type == SOCKET_SOCKET) |
252 | path = socket_address_get_path(&p->address); | |
253 | else if (p->type == SOCKET_FIFO || p->type == SOCKET_SPECIAL) | |
254 | path = p->path; | |
6e2ef85b | 255 | |
a57f7e2c LP |
256 | if (!path) |
257 | continue; | |
6e2ef85b | 258 | |
a57f7e2c | 259 | r = unit_require_mounts_for(UNIT(s), path); |
b87705cd | 260 | if (r < 0) |
6e2ef85b | 261 | return r; |
b87705cd | 262 | } |
6e2ef85b LP |
263 | |
264 | return 0; | |
265 | } | |
266 | ||
267 | static int socket_add_device_link(Socket *s) { | |
268 | char *t; | |
6e2ef85b LP |
269 | |
270 | assert(s); | |
271 | ||
7d0c710d | 272 | if (!s->bind_to_device || streq(s->bind_to_device, "lo")) |
6e2ef85b LP |
273 | return 0; |
274 | ||
63c372cb | 275 | t = strjoina("/sys/subsystem/net/devices/", s->bind_to_device); |
e821075a | 276 | return unit_add_node_link(UNIT(s), t, false); |
6e2ef85b LP |
277 | } |
278 | ||
a40eb732 LP |
279 | static int socket_add_default_dependencies(Socket *s) { |
280 | int r; | |
281 | assert(s); | |
282 | ||
e3d84721 LP |
283 | r = unit_add_dependency_by_name(UNIT(s), UNIT_BEFORE, SPECIAL_SOCKETS_TARGET, NULL, true); |
284 | if (r < 0) | |
285 | return r; | |
2a77d31d | 286 | |
e3d84721 LP |
287 | if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) { |
288 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true); | |
289 | if (r < 0) | |
a40eb732 | 290 | return r; |
2a77d31d | 291 | } |
a40eb732 | 292 | |
ead8e478 | 293 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); |
a40eb732 LP |
294 | } |
295 | ||
44a6b1b6 | 296 | _pure_ static bool socket_has_exec(Socket *s) { |
4cfc6dbe LP |
297 | unsigned i; |
298 | assert(s); | |
299 | ||
300 | for (i = 0; i < _SOCKET_EXEC_COMMAND_MAX; i++) | |
301 | if (s->exec_command[i]) | |
302 | return true; | |
303 | ||
304 | return false; | |
305 | } | |
306 | ||
e821075a LP |
307 | static int socket_add_extras(Socket *s) { |
308 | Unit *u = UNIT(s); | |
e537352b | 309 | int r; |
44d8db9e | 310 | |
e821075a | 311 | assert(s); |
57020a3a | 312 | |
e821075a | 313 | if (have_non_accept_socket(s)) { |
23a177ef | 314 | |
e821075a LP |
315 | if (!UNIT_DEREF(s->service)) { |
316 | Unit *x; | |
57020a3a | 317 | |
e821075a | 318 | r = unit_load_related_unit(u, ".service", &x); |
57020a3a | 319 | if (r < 0) |
4f2d528d | 320 | return r; |
e821075a LP |
321 | |
322 | unit_ref_set(&s->service, x); | |
4f2d528d | 323 | } |
44d8db9e | 324 | |
e821075a LP |
325 | r = unit_add_two_dependencies(u, UNIT_BEFORE, UNIT_TRIGGERS, UNIT_DEREF(s->service), true); |
326 | if (r < 0) | |
6e2ef85b | 327 | return r; |
e821075a | 328 | } |
6e2ef85b | 329 | |
e821075a LP |
330 | r = socket_add_mount_links(s); |
331 | if (r < 0) | |
332 | return r; | |
6e2ef85b | 333 | |
e821075a LP |
334 | r = socket_add_device_link(s); |
335 | if (r < 0) | |
336 | return r; | |
337 | ||
598459ce | 338 | r = unit_patch_contexts(u); |
e821075a LP |
339 | if (r < 0) |
340 | return r; | |
341 | ||
342 | if (socket_has_exec(s)) { | |
343 | r = unit_add_exec_dependencies(u, &s->exec_context); | |
344 | if (r < 0) | |
345 | return r; | |
23a177ef | 346 | |
598459ce | 347 | r = unit_add_default_slice(u, &s->cgroup_context); |
a016b922 LP |
348 | if (r < 0) |
349 | return r; | |
e821075a | 350 | } |
a016b922 | 351 | |
e821075a LP |
352 | if (u->default_dependencies) { |
353 | r = socket_add_default_dependencies(s); | |
354 | if (r < 0) | |
355 | return r; | |
356 | } | |
357 | ||
358 | return 0; | |
359 | } | |
360 | ||
811ba7a0 LP |
361 | static const char *socket_find_symlink_target(Socket *s) { |
362 | const char *found = NULL; | |
363 | SocketPort *p; | |
364 | ||
365 | LIST_FOREACH(port, p, s->ports) { | |
366 | const char *f = NULL; | |
367 | ||
368 | switch (p->type) { | |
369 | ||
370 | case SOCKET_FIFO: | |
371 | f = p->path; | |
372 | break; | |
373 | ||
374 | case SOCKET_SOCKET: | |
375 | if (p->address.sockaddr.un.sun_path[0] != 0) | |
376 | f = p->address.sockaddr.un.sun_path; | |
377 | break; | |
378 | ||
379 | default: | |
380 | break; | |
381 | } | |
382 | ||
383 | if (f) { | |
384 | if (found) | |
385 | return NULL; | |
386 | ||
387 | found = f; | |
388 | } | |
389 | } | |
390 | ||
391 | return found; | |
392 | } | |
393 | ||
e821075a LP |
394 | static int socket_verify(Socket *s) { |
395 | assert(s); | |
396 | ||
397 | if (UNIT(s)->load_state != UNIT_LOADED) | |
398 | return 0; | |
399 | ||
400 | if (!s->ports) { | |
f2341e0a | 401 | log_unit_error(UNIT(s), "Unit lacks Listen setting. Refusing."); |
e821075a LP |
402 | return -EINVAL; |
403 | } | |
404 | ||
405 | if (s->accept && have_non_accept_socket(s)) { | |
f2341e0a | 406 | log_unit_error(UNIT(s), "Unit configured for accepting sockets, but sockets are non-accepting. Refusing."); |
e821075a LP |
407 | return -EINVAL; |
408 | } | |
409 | ||
410 | if (s->accept && s->max_connections <= 0) { | |
f2341e0a | 411 | log_unit_error(UNIT(s), "MaxConnection= setting too small. Refusing."); |
e821075a LP |
412 | return -EINVAL; |
413 | } | |
e06c73cc | 414 | |
e821075a | 415 | if (s->accept && UNIT_DEREF(s->service)) { |
f2341e0a | 416 | log_unit_error(UNIT(s), "Explicit service configuration for accepting socket units not supported. Refusing."); |
e821075a LP |
417 | return -EINVAL; |
418 | } | |
419 | ||
420 | if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) { | |
f2341e0a | 421 | log_unit_error(UNIT(s), "Unit has PAM enabled. Kill mode must be set to 'control-group'. Refusing."); |
e821075a LP |
422 | return -EINVAL; |
423 | } | |
424 | ||
811ba7a0 | 425 | if (!strv_isempty(s->symlinks) && !socket_find_symlink_target(s)) { |
f2341e0a | 426 | log_unit_error(UNIT(s), "Unit has symlinks set but none or more than one node in the file system. Refusing."); |
811ba7a0 LP |
427 | return -EINVAL; |
428 | } | |
429 | ||
e821075a LP |
430 | return 0; |
431 | } | |
432 | ||
433 | static int socket_load(Unit *u) { | |
434 | Socket *s = SOCKET(u); | |
435 | int r; | |
436 | ||
437 | assert(u); | |
438 | assert(u->load_state == UNIT_STUB); | |
439 | ||
440 | r = unit_load_fragment_and_dropin(u); | |
441 | if (r < 0) | |
442 | return r; | |
443 | ||
444 | if (u->load_state == UNIT_LOADED) { | |
445 | /* This is a new unit? Then let's add in some extras */ | |
446 | r = socket_add_extras(s); | |
e06c73cc LP |
447 | if (r < 0) |
448 | return r; | |
23a177ef LP |
449 | } |
450 | ||
4f2d528d | 451 | return socket_verify(s); |
44d8db9e LP |
452 | } |
453 | ||
44a6b1b6 | 454 | _const_ static const char* listen_lookup(int family, int type) { |
7a22745a LP |
455 | |
456 | if (family == AF_NETLINK) | |
457 | return "ListenNetlink"; | |
542563ba LP |
458 | |
459 | if (type == SOCK_STREAM) | |
460 | return "ListenStream"; | |
461 | else if (type == SOCK_DGRAM) | |
462 | return "ListenDatagram"; | |
463 | else if (type == SOCK_SEQPACKET) | |
464 | return "ListenSequentialPacket"; | |
465 | ||
034c6ed7 | 466 | assert_not_reached("Unknown socket type"); |
542563ba LP |
467 | return NULL; |
468 | } | |
469 | ||
87f0e418 | 470 | static void socket_dump(Unit *u, FILE *f, const char *prefix) { |
209e9dcd | 471 | char time_string[FORMAT_TIMESPAN_MAX]; |
5cb5a6ff | 472 | SocketExecCommand c; |
87f0e418 | 473 | Socket *s = SOCKET(u); |
542563ba | 474 | SocketPort *p; |
82ba9f08 | 475 | const char *prefix2; |
5cb5a6ff LP |
476 | |
477 | assert(s); | |
fa068367 | 478 | assert(f); |
5cb5a6ff | 479 | |
4c940960 | 480 | prefix = strempty(prefix); |
63c372cb | 481 | prefix2 = strjoina(prefix, "\t"); |
c43d20a0 | 482 | |
5cb5a6ff LP |
483 | fprintf(f, |
484 | "%sSocket State: %s\n" | |
81a5c6d0 | 485 | "%sResult: %s\n" |
542563ba | 486 | "%sBindIPv6Only: %s\n" |
b5a0699f LP |
487 | "%sBacklog: %u\n" |
488 | "%sSocketMode: %04o\n" | |
4fd5948e LP |
489 | "%sDirectoryMode: %04o\n" |
490 | "%sKeepAlive: %s\n" | |
4427c3f4 | 491 | "%sNoDelay: %s\n" |
cebf8b20 | 492 | "%sFreeBind: %s\n" |
6b6d2dee | 493 | "%sTransparent: %s\n" |
ec6370a2 | 494 | "%sBroadcast: %s\n" |
ede3deb4 | 495 | "%sPassCredentials: %s\n" |
54ecda32 | 496 | "%sPassSecurity: %s\n" |
bd1fe7c7 | 497 | "%sTCPCongestion: %s\n" |
16115b0a MS |
498 | "%sRemoveOnStop: %s\n" |
499 | "%sSELinuxContextFromNet: %s\n", | |
a16e1123 | 500 | prefix, socket_state_to_string(s->state), |
81a5c6d0 | 501 | prefix, socket_result_to_string(s->result), |
c0120d99 | 502 | prefix, socket_address_bind_ipv6_only_to_string(s->bind_ipv6_only), |
b5a0699f LP |
503 | prefix, s->backlog, |
504 | prefix, s->socket_mode, | |
4fd5948e LP |
505 | prefix, s->directory_mode, |
506 | prefix, yes_no(s->keep_alive), | |
4427c3f4 | 507 | prefix, yes_no(s->no_delay), |
cebf8b20 | 508 | prefix, yes_no(s->free_bind), |
6b6d2dee | 509 | prefix, yes_no(s->transparent), |
ec6370a2 | 510 | prefix, yes_no(s->broadcast), |
d68af586 | 511 | prefix, yes_no(s->pass_cred), |
54ecda32 | 512 | prefix, yes_no(s->pass_sec), |
bd1fe7c7 | 513 | prefix, strna(s->tcp_congestion), |
16115b0a MS |
514 | prefix, yes_no(s->remove_on_stop), |
515 | prefix, yes_no(s->selinux_context_from_net)); | |
542563ba | 516 | |
70123e68 LP |
517 | if (s->control_pid > 0) |
518 | fprintf(f, | |
de0671ee ZJS |
519 | "%sControl PID: "PID_FMT"\n", |
520 | prefix, s->control_pid); | |
70123e68 | 521 | |
acbb0225 LP |
522 | if (s->bind_to_device) |
523 | fprintf(f, | |
524 | "%sBindToDevice: %s\n", | |
525 | prefix, s->bind_to_device); | |
526 | ||
4f2d528d LP |
527 | if (s->accept) |
528 | fprintf(f, | |
6cf6bbc2 LP |
529 | "%sAccepted: %u\n" |
530 | "%sNConnections: %u\n" | |
531 | "%sMaxConnections: %u\n", | |
532 | prefix, s->n_accepted, | |
533 | prefix, s->n_connections, | |
534 | prefix, s->max_connections); | |
4f2d528d | 535 | |
4fd5948e LP |
536 | if (s->priority >= 0) |
537 | fprintf(f, | |
538 | "%sPriority: %i\n", | |
539 | prefix, s->priority); | |
540 | ||
541 | if (s->receive_buffer > 0) | |
542 | fprintf(f, | |
543 | "%sReceiveBuffer: %zu\n", | |
544 | prefix, s->receive_buffer); | |
545 | ||
546 | if (s->send_buffer > 0) | |
547 | fprintf(f, | |
548 | "%sSendBuffer: %zu\n", | |
549 | prefix, s->send_buffer); | |
550 | ||
551 | if (s->ip_tos >= 0) | |
552 | fprintf(f, | |
553 | "%sIPTOS: %i\n", | |
554 | prefix, s->ip_tos); | |
555 | ||
556 | if (s->ip_ttl >= 0) | |
557 | fprintf(f, | |
558 | "%sIPTTL: %i\n", | |
559 | prefix, s->ip_ttl); | |
560 | ||
561 | if (s->pipe_size > 0) | |
562 | fprintf(f, | |
563 | "%sPipeSize: %zu\n", | |
564 | prefix, s->pipe_size); | |
565 | ||
566 | if (s->mark >= 0) | |
567 | fprintf(f, | |
568 | "%sMark: %i\n", | |
569 | prefix, s->mark); | |
570 | ||
916abb21 LP |
571 | if (s->mq_maxmsg > 0) |
572 | fprintf(f, | |
573 | "%sMessageQueueMaxMessages: %li\n", | |
574 | prefix, s->mq_maxmsg); | |
575 | ||
576 | if (s->mq_msgsize > 0) | |
577 | fprintf(f, | |
578 | "%sMessageQueueMessageSize: %li\n", | |
579 | prefix, s->mq_msgsize); | |
580 | ||
718db961 | 581 | if (s->reuse_port) |
f7db7a69 SL |
582 | fprintf(f, |
583 | "%sReusePort: %s\n", | |
718db961 | 584 | prefix, yes_no(s->reuse_port)); |
f7db7a69 | 585 | |
0eb59ccf AK |
586 | if (s->smack) |
587 | fprintf(f, | |
588 | "%sSmackLabel: %s\n", | |
589 | prefix, s->smack); | |
590 | ||
591 | if (s->smack_ip_in) | |
592 | fprintf(f, | |
593 | "%sSmackLabelIPIn: %s\n", | |
594 | prefix, s->smack_ip_in); | |
595 | ||
596 | if (s->smack_ip_out) | |
597 | fprintf(f, | |
598 | "%sSmackLabelIPOut: %s\n", | |
599 | prefix, s->smack_ip_out); | |
600 | ||
3900e5fd LP |
601 | if (!isempty(s->user) || !isempty(s->group)) |
602 | fprintf(f, | |
603 | "%sOwnerUser: %s\n" | |
604 | "%sOwnerGroup: %s\n", | |
605 | prefix, strna(s->user), | |
606 | prefix, strna(s->group)); | |
607 | ||
3cd761e4 | 608 | if (s->keep_alive_time > 0) |
209e9dcd | 609 | fprintf(f, |
3cd761e4 LP |
610 | "%sKeepAliveTimeSec: %s\n", |
611 | prefix, format_timespan(time_string, FORMAT_TIMESPAN_MAX, s->keep_alive_time, USEC_PER_SEC)); | |
209e9dcd | 612 | |
3cd761e4 | 613 | if (s->keep_alive_interval) |
209e9dcd | 614 | fprintf(f, |
3cd761e4 LP |
615 | "%sKeepAliveIntervalSec: %s\n", |
616 | prefix, format_timespan(time_string, FORMAT_TIMESPAN_MAX, s->keep_alive_interval, USEC_PER_SEC)); | |
209e9dcd | 617 | |
3cd761e4 | 618 | if (s->keep_alive_cnt) |
209e9dcd SS |
619 | fprintf(f, |
620 | "%sKeepAliveProbes: %u\n", | |
621 | prefix, s->keep_alive_cnt); | |
622 | ||
3cd761e4 | 623 | if (s->defer_accept) |
cc567c9b | 624 | fprintf(f, |
3cd761e4 LP |
625 | "%sDeferAcceptSec: %s\n", |
626 | prefix, format_timespan(time_string, FORMAT_TIMESPAN_MAX, s->defer_accept, USEC_PER_SEC)); | |
cc567c9b | 627 | |
034c6ed7 | 628 | LIST_FOREACH(port, p, s->ports) { |
5cb5a6ff | 629 | |
542563ba LP |
630 | if (p->type == SOCKET_SOCKET) { |
631 | const char *t; | |
632 | int r; | |
e364ad06 | 633 | char *k = NULL; |
542563ba LP |
634 | |
635 | if ((r = socket_address_print(&p->address, &k)) < 0) | |
636 | t = strerror(-r); | |
637 | else | |
638 | t = k; | |
639 | ||
7a22745a | 640 | fprintf(f, "%s%s: %s\n", prefix, listen_lookup(socket_address_family(&p->address), p->address.type), t); |
542563ba | 641 | free(k); |
b0a3f2bc LP |
642 | } else if (p->type == SOCKET_SPECIAL) |
643 | fprintf(f, "%sListenSpecial: %s\n", prefix, p->path); | |
916abb21 LP |
644 | else if (p->type == SOCKET_MQUEUE) |
645 | fprintf(f, "%sListenMessageQueue: %s\n", prefix, p->path); | |
b0a3f2bc | 646 | else |
542563ba LP |
647 | fprintf(f, "%sListenFIFO: %s\n", prefix, p->path); |
648 | } | |
5cb5a6ff LP |
649 | |
650 | exec_context_dump(&s->exec_context, f, prefix); | |
4819ff03 | 651 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff | 652 | |
e537352b | 653 | for (c = 0; c < _SOCKET_EXEC_COMMAND_MAX; c++) { |
c43d20a0 LP |
654 | if (!s->exec_command[c]) |
655 | continue; | |
5cb5a6ff | 656 | |
40d50879 | 657 | fprintf(f, "%s-> %s:\n", |
a16e1123 | 658 | prefix, socket_exec_command_to_string(c)); |
c43d20a0 LP |
659 | |
660 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff LP |
661 | } |
662 | } | |
663 | ||
4f2d528d LP |
664 | static int instance_from_socket(int fd, unsigned nr, char **instance) { |
665 | socklen_t l; | |
666 | char *r; | |
9d16d0c7 | 667 | union sockaddr_union local, remote; |
4f2d528d LP |
668 | |
669 | assert(fd >= 0); | |
670 | assert(instance); | |
671 | ||
672 | l = sizeof(local); | |
673 | if (getsockname(fd, &local.sa, &l) < 0) | |
674 | return -errno; | |
675 | ||
676 | l = sizeof(remote); | |
677 | if (getpeername(fd, &remote.sa, &l) < 0) | |
678 | return -errno; | |
679 | ||
680 | switch (local.sa.sa_family) { | |
681 | ||
682 | case AF_INET: { | |
683 | uint32_t | |
684 | a = ntohl(local.in.sin_addr.s_addr), | |
685 | b = ntohl(remote.in.sin_addr.s_addr); | |
686 | ||
687 | if (asprintf(&r, | |
77b088c2 LP |
688 | "%u-%u.%u.%u.%u:%u-%u.%u.%u.%u:%u", |
689 | nr, | |
4f2d528d LP |
690 | a >> 24, (a >> 16) & 0xFF, (a >> 8) & 0xFF, a & 0xFF, |
691 | ntohs(local.in.sin_port), | |
692 | b >> 24, (b >> 16) & 0xFF, (b >> 8) & 0xFF, b & 0xFF, | |
693 | ntohs(remote.in.sin_port)) < 0) | |
694 | return -ENOMEM; | |
695 | ||
696 | break; | |
697 | } | |
698 | ||
699 | case AF_INET6: { | |
c65a0b14 | 700 | static const unsigned char ipv4_prefix[] = { |
2b061f5a LP |
701 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF |
702 | }; | |
703 | ||
704 | if (memcmp(&local.in6.sin6_addr, ipv4_prefix, sizeof(ipv4_prefix)) == 0 && | |
705 | memcmp(&remote.in6.sin6_addr, ipv4_prefix, sizeof(ipv4_prefix)) == 0) { | |
706 | const uint8_t | |
707 | *a = local.in6.sin6_addr.s6_addr+12, | |
708 | *b = remote.in6.sin6_addr.s6_addr+12; | |
709 | ||
710 | if (asprintf(&r, | |
77b088c2 LP |
711 | "%u-%u.%u.%u.%u:%u-%u.%u.%u.%u:%u", |
712 | nr, | |
2b061f5a LP |
713 | a[0], a[1], a[2], a[3], |
714 | ntohs(local.in6.sin6_port), | |
715 | b[0], b[1], b[2], b[3], | |
716 | ntohs(remote.in6.sin6_port)) < 0) | |
717 | return -ENOMEM; | |
718 | } else { | |
719 | char a[INET6_ADDRSTRLEN], b[INET6_ADDRSTRLEN]; | |
720 | ||
721 | if (asprintf(&r, | |
77b088c2 LP |
722 | "%u-%s:%u-%s:%u", |
723 | nr, | |
2b061f5a LP |
724 | inet_ntop(AF_INET6, &local.in6.sin6_addr, a, sizeof(a)), |
725 | ntohs(local.in6.sin6_port), | |
726 | inet_ntop(AF_INET6, &remote.in6.sin6_addr, b, sizeof(b)), | |
727 | ntohs(remote.in6.sin6_port)) < 0) | |
728 | return -ENOMEM; | |
729 | } | |
4f2d528d LP |
730 | |
731 | break; | |
732 | } | |
733 | ||
734 | case AF_UNIX: { | |
735 | struct ucred ucred; | |
eff05270 | 736 | int k; |
4f2d528d | 737 | |
eff05270 | 738 | k = getpeercred(fd, &ucred); |
d38f6e34 ZJS |
739 | if (k >= 0) { |
740 | if (asprintf(&r, | |
741 | "%u-"PID_FMT"-"UID_FMT, | |
742 | nr, ucred.pid, ucred.uid) < 0) | |
743 | return -ENOMEM; | |
744 | } else if (k == -ENODATA) { | |
745 | /* This handles the case where somebody is | |
746 | * connecting from another pid/uid namespace | |
747 | * (e.g. from outside of our container). */ | |
748 | if (asprintf(&r, | |
749 | "%u-unknown", | |
750 | nr) < 0) | |
751 | return -ENOMEM; | |
752 | } else | |
eff05270 | 753 | return k; |
2f20a8eb | 754 | |
2f20a8eb | 755 | break; |
4f2d528d LP |
756 | } |
757 | ||
758 | default: | |
759 | assert_not_reached("Unhandled socket type."); | |
760 | } | |
761 | ||
762 | *instance = r; | |
763 | return 0; | |
764 | } | |
765 | ||
034c6ed7 | 766 | static void socket_close_fds(Socket *s) { |
83c60c9f | 767 | SocketPort *p; |
811ba7a0 | 768 | char **i; |
83c60c9f LP |
769 | |
770 | assert(s); | |
771 | ||
034c6ed7 | 772 | LIST_FOREACH(port, p, s->ports) { |
718db961 LP |
773 | |
774 | p->event_source = sd_event_source_unref(p->event_source); | |
775 | ||
83c60c9f LP |
776 | if (p->fd < 0) |
777 | continue; | |
778 | ||
03e334a1 | 779 | p->fd = safe_close(p->fd); |
a16e1123 | 780 | |
bd1fe7c7 LP |
781 | /* One little note: we should normally not delete any |
782 | * sockets in the file system here! After all some | |
783 | * other process we spawned might still have a | |
784 | * reference of this fd and wants to continue to use | |
785 | * it. Therefore we delete sockets in the file system | |
786 | * before we create a new one, not after we stopped | |
787 | * using one! */ | |
788 | ||
789 | if (s->remove_on_stop) { | |
790 | switch (p->type) { | |
791 | ||
792 | case SOCKET_FIFO: | |
793 | unlink(p->path); | |
794 | break; | |
795 | ||
796 | case SOCKET_MQUEUE: | |
797 | mq_unlink(p->path); | |
798 | break; | |
799 | ||
800 | case SOCKET_SOCKET: | |
801 | socket_address_unlink(&p->address); | |
802 | break; | |
803 | ||
804 | default: | |
805 | break; | |
806 | } | |
807 | } | |
83c60c9f | 808 | } |
811ba7a0 LP |
809 | |
810 | if (s->remove_on_stop) | |
811 | STRV_FOREACH(i, s->symlinks) | |
812 | unlink(*i); | |
83c60c9f LP |
813 | } |
814 | ||
4fd5948e | 815 | static void socket_apply_socket_options(Socket *s, int fd) { |
d53e386d LP |
816 | int r; |
817 | ||
4fd5948e LP |
818 | assert(s); |
819 | assert(fd >= 0); | |
820 | ||
821 | if (s->keep_alive) { | |
822 | int b = s->keep_alive; | |
823 | if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &b, sizeof(b)) < 0) | |
f2341e0a | 824 | log_unit_warning_errno(UNIT(s), errno, "SO_KEEPALIVE failed: %m"); |
4fd5948e LP |
825 | } |
826 | ||
209e9dcd SS |
827 | if (s->keep_alive_time) { |
828 | int value = s->keep_alive_time / USEC_PER_SEC; | |
829 | if (setsockopt(fd, SOL_TCP, TCP_KEEPIDLE, &value, sizeof(value)) < 0) | |
f2341e0a | 830 | log_unit_warning_errno(UNIT(s), errno, "TCP_KEEPIDLE failed: %m"); |
209e9dcd SS |
831 | } |
832 | ||
833 | if (s->keep_alive_interval) { | |
834 | int value = s->keep_alive_interval / USEC_PER_SEC; | |
835 | if (setsockopt(fd, SOL_TCP, TCP_KEEPINTVL, &value, sizeof(value)) < 0) | |
f2341e0a | 836 | log_unit_warning_errno(UNIT(s), errno, "TCP_KEEPINTVL failed: %m"); |
209e9dcd SS |
837 | } |
838 | ||
839 | if (s->keep_alive_cnt) { | |
840 | int value = s->keep_alive_cnt; | |
841 | if (setsockopt(fd, SOL_SOCKET, TCP_KEEPCNT, &value, sizeof(value)) < 0) | |
f2341e0a | 842 | log_unit_warning_errno(UNIT(s), errno, "TCP_KEEPCNT failed: %m"); |
209e9dcd SS |
843 | } |
844 | ||
cc567c9b SS |
845 | if (s->defer_accept) { |
846 | int value = s->defer_accept / USEC_PER_SEC; | |
847 | if (setsockopt(fd, SOL_TCP, TCP_DEFER_ACCEPT, &value, sizeof(value)) < 0) | |
f2341e0a | 848 | log_unit_warning_errno(UNIT(s), errno, "TCP_DEFER_ACCEPT failed: %m"); |
cc567c9b SS |
849 | } |
850 | ||
4427c3f4 SS |
851 | if (s->no_delay) { |
852 | int b = s->no_delay; | |
853 | if (setsockopt(fd, SOL_TCP, TCP_NODELAY, &b, sizeof(b)) < 0) | |
f2341e0a | 854 | log_unit_warning_errno(UNIT(s), errno, "TCP_NODELAY failed: %m"); |
4427c3f4 SS |
855 | } |
856 | ||
ec6370a2 LP |
857 | if (s->broadcast) { |
858 | int one = 1; | |
859 | if (setsockopt(fd, SOL_SOCKET, SO_BROADCAST, &one, sizeof(one)) < 0) | |
f2341e0a | 860 | log_unit_warning_errno(UNIT(s), errno, "SO_BROADCAST failed: %m"); |
ec6370a2 LP |
861 | } |
862 | ||
d68af586 MS |
863 | if (s->pass_cred) { |
864 | int one = 1; | |
865 | if (setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) | |
f2341e0a | 866 | log_unit_warning_errno(UNIT(s), errno, "SO_PASSCRED failed: %m"); |
d68af586 MS |
867 | } |
868 | ||
54ecda32 LP |
869 | if (s->pass_sec) { |
870 | int one = 1; | |
871 | if (setsockopt(fd, SOL_SOCKET, SO_PASSSEC, &one, sizeof(one)) < 0) | |
f2341e0a | 872 | log_unit_warning_errno(UNIT(s), errno, "SO_PASSSEC failed: %m"); |
54ecda32 LP |
873 | } |
874 | ||
4fd5948e LP |
875 | if (s->priority >= 0) |
876 | if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &s->priority, sizeof(s->priority)) < 0) | |
f2341e0a | 877 | log_unit_warning_errno(UNIT(s), errno, "SO_PRIORITY failed: %m"); |
4fd5948e LP |
878 | |
879 | if (s->receive_buffer > 0) { | |
880 | int value = (int) s->receive_buffer; | |
7d9eaa84 LP |
881 | |
882 | /* We first try with SO_RCVBUFFORCE, in case we have the perms for that */ | |
883 | ||
b8cef44e | 884 | if (setsockopt(fd, SOL_SOCKET, SO_RCVBUFFORCE, &value, sizeof(value)) < 0) |
7d9eaa84 | 885 | if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value)) < 0) |
f2341e0a | 886 | log_unit_warning_errno(UNIT(s), errno, "SO_RCVBUF failed: %m"); |
4fd5948e LP |
887 | } |
888 | ||
889 | if (s->send_buffer > 0) { | |
890 | int value = (int) s->send_buffer; | |
b8cef44e | 891 | if (setsockopt(fd, SOL_SOCKET, SO_SNDBUFFORCE, &value, sizeof(value)) < 0) |
7d9eaa84 | 892 | if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, sizeof(value)) < 0) |
f2341e0a | 893 | log_unit_warning_errno(UNIT(s), errno, "SO_SNDBUF failed: %m"); |
4fd5948e LP |
894 | } |
895 | ||
896 | if (s->mark >= 0) | |
897 | if (setsockopt(fd, SOL_SOCKET, SO_MARK, &s->mark, sizeof(s->mark)) < 0) | |
f2341e0a | 898 | log_unit_warning_errno(UNIT(s), errno, "SO_MARK failed: %m"); |
4fd5948e LP |
899 | |
900 | if (s->ip_tos >= 0) | |
901 | if (setsockopt(fd, IPPROTO_IP, IP_TOS, &s->ip_tos, sizeof(s->ip_tos)) < 0) | |
f2341e0a | 902 | log_unit_warning_errno(UNIT(s), errno, "IP_TOS failed: %m"); |
4fd5948e | 903 | |
46925ac5 | 904 | if (s->ip_ttl >= 0) { |
d53e386d | 905 | int x; |
46925ac5 LP |
906 | |
907 | r = setsockopt(fd, IPPROTO_IP, IP_TTL, &s->ip_ttl, sizeof(s->ip_ttl)); | |
5bfcc1c6 FF |
908 | |
909 | if (socket_ipv6_is_supported()) | |
910 | x = setsockopt(fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &s->ip_ttl, sizeof(s->ip_ttl)); | |
911 | else { | |
912 | x = -1; | |
913 | errno = EAFNOSUPPORT; | |
914 | } | |
46925ac5 LP |
915 | |
916 | if (r < 0 && x < 0) | |
f2341e0a | 917 | log_unit_warning_errno(UNIT(s), errno, "IP_TTL/IPV6_UNICAST_HOPS failed: %m"); |
46925ac5 | 918 | } |
cebf8b20 TT |
919 | |
920 | if (s->tcp_congestion) | |
921 | if (setsockopt(fd, SOL_TCP, TCP_CONGESTION, s->tcp_congestion, strlen(s->tcp_congestion)+1) < 0) | |
f2341e0a | 922 | log_unit_warning_errno(UNIT(s), errno, "TCP_CONGESTION failed: %m"); |
0eb59ccf | 923 | |
718db961 LP |
924 | if (s->reuse_port) { |
925 | int b = s->reuse_port; | |
f0511bd7 | 926 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &b, sizeof(b)) < 0) |
f2341e0a | 927 | log_unit_warning_errno(UNIT(s), errno, "SO_REUSEPORT failed: %m"); |
f7db7a69 SL |
928 | } |
929 | ||
d53e386d LP |
930 | if (s->smack_ip_in) { |
931 | r = mac_smack_apply_ip_in_fd(fd, s->smack_ip_in); | |
932 | if (r < 0) | |
f2341e0a | 933 | log_unit_error_errno(UNIT(s), r, "mac_smack_apply_ip_in_fd: %m"); |
d53e386d | 934 | } |
9a4e038c | 935 | |
d53e386d LP |
936 | if (s->smack_ip_out) { |
937 | r = mac_smack_apply_ip_out_fd(fd, s->smack_ip_out); | |
938 | if (r < 0) | |
f2341e0a | 939 | log_unit_error_errno(UNIT(s), r, "mac_smack_apply_ip_out_fd: %m"); |
d53e386d | 940 | } |
4fd5948e LP |
941 | } |
942 | ||
b15bdda8 | 943 | static void socket_apply_fifo_options(Socket *s, int fd) { |
d53e386d LP |
944 | int r; |
945 | ||
4fd5948e LP |
946 | assert(s); |
947 | assert(fd >= 0); | |
948 | ||
949 | if (s->pipe_size > 0) | |
950 | if (fcntl(fd, F_SETPIPE_SZ, s->pipe_size) < 0) | |
f2341e0a | 951 | log_unit_warning_errno(UNIT(s), errno, "F_SETPIPE_SZ: %m"); |
0eb59ccf | 952 | |
d53e386d LP |
953 | if (s->smack) { |
954 | r = mac_smack_apply_fd(fd, s->smack); | |
955 | if (r < 0) | |
f2341e0a | 956 | log_unit_error_errno(UNIT(s), r, "mac_smack_apply_fd: %m"); |
d53e386d | 957 | } |
4fd5948e LP |
958 | } |
959 | ||
b15bdda8 LP |
960 | static int fifo_address_create( |
961 | const char *path, | |
962 | mode_t directory_mode, | |
963 | mode_t socket_mode, | |
b15bdda8 LP |
964 | int *_fd) { |
965 | ||
7a58bfa4 | 966 | int fd = -1, r = 0; |
b15bdda8 LP |
967 | struct stat st; |
968 | mode_t old_mask; | |
969 | ||
970 | assert(path); | |
971 | assert(_fd); | |
972 | ||
d2e54fae | 973 | mkdir_parents_label(path, directory_mode); |
b15bdda8 | 974 | |
ecabcf8b | 975 | r = mac_selinux_create_file_prepare(path, S_IFIFO); |
e9a5ef7c | 976 | if (r < 0) |
56cf987f | 977 | goto fail; |
b15bdda8 LP |
978 | |
979 | /* Enforce the right access mode for the fifo */ | |
980 | old_mask = umask(~ socket_mode); | |
981 | ||
982 | /* Include the original umask in our mask */ | |
983 | umask(~socket_mode | old_mask); | |
984 | ||
985 | r = mkfifo(path, socket_mode); | |
986 | umask(old_mask); | |
987 | ||
94bc2731 | 988 | if (r < 0 && errno != EEXIST) { |
b15bdda8 LP |
989 | r = -errno; |
990 | goto fail; | |
991 | } | |
992 | ||
e4f44e73 | 993 | if ((fd = open(path, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW)) < 0) { |
b15bdda8 LP |
994 | r = -errno; |
995 | goto fail; | |
996 | } | |
997 | ||
ecabcf8b | 998 | mac_selinux_create_file_clear(); |
7a58bfa4 | 999 | |
b15bdda8 LP |
1000 | if (fstat(fd, &st) < 0) { |
1001 | r = -errno; | |
1002 | goto fail; | |
1003 | } | |
1004 | ||
1005 | if (!S_ISFIFO(st.st_mode) || | |
de0200fc | 1006 | (st.st_mode & 0777) != (socket_mode & ~old_mask) || |
e4f44e73 DR |
1007 | st.st_uid != getuid() || |
1008 | st.st_gid != getgid()) { | |
b15bdda8 LP |
1009 | |
1010 | r = -EEXIST; | |
1011 | goto fail; | |
1012 | } | |
1013 | ||
1014 | *_fd = fd; | |
1015 | return 0; | |
1016 | ||
1017 | fail: | |
ecabcf8b | 1018 | mac_selinux_create_file_clear(); |
03e334a1 | 1019 | safe_close(fd); |
b15bdda8 LP |
1020 | |
1021 | return r; | |
1022 | } | |
1023 | ||
b0a3f2bc LP |
1024 | static int special_address_create( |
1025 | const char *path, | |
1026 | int *_fd) { | |
1027 | ||
1028 | int fd = -1, r = 0; | |
1029 | struct stat st; | |
1030 | ||
1031 | assert(path); | |
1032 | assert(_fd); | |
1033 | ||
811ba7a0 LP |
1034 | fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW); |
1035 | if (fd < 0) { | |
b0a3f2bc LP |
1036 | r = -errno; |
1037 | goto fail; | |
1038 | } | |
1039 | ||
1040 | if (fstat(fd, &st) < 0) { | |
1041 | r = -errno; | |
1042 | goto fail; | |
1043 | } | |
1044 | ||
1045 | /* Check whether this is a /proc, /sys or /dev file or char device */ | |
1046 | if (!S_ISREG(st.st_mode) && !S_ISCHR(st.st_mode)) { | |
1047 | r = -EEXIST; | |
1048 | goto fail; | |
1049 | } | |
1050 | ||
1051 | *_fd = fd; | |
1052 | return 0; | |
1053 | ||
1054 | fail: | |
03e334a1 | 1055 | safe_close(fd); |
b0a3f2bc LP |
1056 | |
1057 | return r; | |
1058 | } | |
1059 | ||
916abb21 LP |
1060 | static int mq_address_create( |
1061 | const char *path, | |
1062 | mode_t mq_mode, | |
1063 | long maxmsg, | |
1064 | long msgsize, | |
1065 | int *_fd) { | |
1066 | ||
1067 | int fd = -1, r = 0; | |
1068 | struct stat st; | |
1069 | mode_t old_mask; | |
1070 | struct mq_attr _attr, *attr = NULL; | |
1071 | ||
1072 | assert(path); | |
1073 | assert(_fd); | |
1074 | ||
1075 | if (maxmsg > 0 && msgsize > 0) { | |
1076 | zero(_attr); | |
1077 | _attr.mq_flags = O_NONBLOCK; | |
1078 | _attr.mq_maxmsg = maxmsg; | |
1079 | _attr.mq_msgsize = msgsize; | |
1080 | attr = &_attr; | |
1081 | } | |
1082 | ||
1083 | /* Enforce the right access mode for the mq */ | |
1084 | old_mask = umask(~ mq_mode); | |
1085 | ||
1086 | /* Include the original umask in our mask */ | |
1087 | umask(~mq_mode | old_mask); | |
916abb21 LP |
1088 | fd = mq_open(path, O_RDONLY|O_CLOEXEC|O_NONBLOCK|O_CREAT, mq_mode, attr); |
1089 | umask(old_mask); | |
1090 | ||
8ea913b2 | 1091 | if (fd < 0) { |
916abb21 LP |
1092 | r = -errno; |
1093 | goto fail; | |
1094 | } | |
1095 | ||
1096 | if (fstat(fd, &st) < 0) { | |
1097 | r = -errno; | |
1098 | goto fail; | |
1099 | } | |
1100 | ||
1101 | if ((st.st_mode & 0777) != (mq_mode & ~old_mask) || | |
1102 | st.st_uid != getuid() || | |
1103 | st.st_gid != getgid()) { | |
1104 | ||
1105 | r = -EEXIST; | |
1106 | goto fail; | |
1107 | } | |
1108 | ||
1109 | *_fd = fd; | |
1110 | return 0; | |
1111 | ||
1112 | fail: | |
03e334a1 | 1113 | safe_close(fd); |
916abb21 LP |
1114 | return r; |
1115 | } | |
1116 | ||
811ba7a0 LP |
1117 | static int socket_symlink(Socket *s) { |
1118 | const char *p; | |
1119 | char **i; | |
1120 | ||
1121 | assert(s); | |
1122 | ||
1123 | p = socket_find_symlink_target(s); | |
1124 | if (!p) | |
1125 | return 0; | |
1126 | ||
1127 | STRV_FOREACH(i, s->symlinks) | |
43b133b4 | 1128 | symlink_label(p, *i); |
811ba7a0 LP |
1129 | |
1130 | return 0; | |
1131 | } | |
1132 | ||
034c6ed7 | 1133 | static int socket_open_fds(Socket *s) { |
83c60c9f LP |
1134 | SocketPort *p; |
1135 | int r; | |
56cf987f | 1136 | char *label = NULL; |
049f8642 | 1137 | bool know_label = false; |
83c60c9f LP |
1138 | |
1139 | assert(s); | |
1140 | ||
034c6ed7 | 1141 | LIST_FOREACH(port, p, s->ports) { |
83c60c9f | 1142 | |
034c6ed7 LP |
1143 | if (p->fd >= 0) |
1144 | continue; | |
83c60c9f LP |
1145 | |
1146 | if (p->type == SOCKET_SOCKET) { | |
049f8642 | 1147 | |
7f416dae LP |
1148 | if (!know_label) { |
1149 | /* Figure out label, if we don't it know | |
1150 | * yet. We do it once, for the first | |
1151 | * socket where we need this and | |
1152 | * remember it for the rest. */ | |
1153 | ||
1154 | if (s->selinux_context_from_net) { | |
1155 | /* Get it from the network label */ | |
1156 | ||
1157 | r = mac_selinux_get_our_label(&label); | |
75514a70 | 1158 | if (r < 0 && r != -EOPNOTSUPP) |
7f416dae | 1159 | goto rollback; |
049f8642 | 1160 | |
7f416dae LP |
1161 | } else { |
1162 | /* Get it from the executable we are about to start */ | |
1163 | ||
1164 | r = socket_instantiate_service(s); | |
1165 | if (r < 0) | |
1166 | goto rollback; | |
1167 | ||
1168 | if (UNIT_ISSET(s->service) && | |
1169 | SERVICE(UNIT_DEREF(s->service))->exec_command[SERVICE_EXEC_START]) { | |
1170 | r = mac_selinux_get_create_label_from_exe(SERVICE(UNIT_DEREF(s->service))->exec_command[SERVICE_EXEC_START]->path, &label); | |
75514a70 | 1171 | if (r < 0 && r != -EPERM && r != -EOPNOTSUPP) |
7f416dae LP |
1172 | goto rollback; |
1173 | } | |
189583d7 | 1174 | } |
049f8642 LP |
1175 | |
1176 | know_label = true; | |
1177 | } | |
1178 | ||
175a3d25 LP |
1179 | r = socket_address_listen( |
1180 | &p->address, | |
1181 | SOCK_CLOEXEC|SOCK_NONBLOCK, | |
1182 | s->backlog, | |
1183 | s->bind_ipv6_only, | |
1184 | s->bind_to_device, | |
1185 | s->free_bind, | |
1186 | s->transparent, | |
1187 | s->directory_mode, | |
1188 | s->socket_mode, | |
1189 | label); | |
1190 | if (r < 0) | |
83c60c9f LP |
1191 | goto rollback; |
1192 | ||
175a3d25 | 1193 | p->fd = r; |
4fd5948e | 1194 | socket_apply_socket_options(s, p->fd); |
811ba7a0 | 1195 | socket_symlink(s); |
4fd5948e | 1196 | |
b0a3f2bc LP |
1197 | } else if (p->type == SOCKET_SPECIAL) { |
1198 | ||
175a3d25 LP |
1199 | r = special_address_create( |
1200 | p->path, | |
1201 | &p->fd); | |
1202 | if (r < 0) | |
b0a3f2bc LP |
1203 | goto rollback; |
1204 | ||
b15bdda8 | 1205 | } else if (p->type == SOCKET_FIFO) { |
83c60c9f | 1206 | |
175a3d25 LP |
1207 | r = fifo_address_create( |
1208 | p->path, | |
1209 | s->directory_mode, | |
1210 | s->socket_mode, | |
1211 | &p->fd); | |
1212 | if (r < 0) | |
83c60c9f | 1213 | goto rollback; |
83c60c9f | 1214 | |
b15bdda8 | 1215 | socket_apply_fifo_options(s, p->fd); |
811ba7a0 LP |
1216 | socket_symlink(s); |
1217 | ||
916abb21 | 1218 | } else if (p->type == SOCKET_MQUEUE) { |
83c60c9f | 1219 | |
175a3d25 LP |
1220 | r = mq_address_create( |
1221 | p->path, | |
1222 | s->socket_mode, | |
1223 | s->mq_maxmsg, | |
1224 | s->mq_msgsize, | |
1225 | &p->fd); | |
1226 | if (r < 0) | |
916abb21 | 1227 | goto rollback; |
b15bdda8 LP |
1228 | } else |
1229 | assert_not_reached("Unknown port type"); | |
034c6ed7 LP |
1230 | } |
1231 | ||
cc56fafe | 1232 | mac_selinux_free(label); |
034c6ed7 LP |
1233 | return 0; |
1234 | ||
1235 | rollback: | |
1236 | socket_close_fds(s); | |
cc56fafe | 1237 | mac_selinux_free(label); |
7f416dae | 1238 | |
034c6ed7 LP |
1239 | return r; |
1240 | } | |
1241 | ||
1242 | static void socket_unwatch_fds(Socket *s) { | |
1243 | SocketPort *p; | |
718db961 | 1244 | int r; |
9152c765 | 1245 | |
034c6ed7 LP |
1246 | assert(s); |
1247 | ||
1248 | LIST_FOREACH(port, p, s->ports) { | |
1249 | if (p->fd < 0) | |
1250 | continue; | |
1251 | ||
a4152e3f LP |
1252 | if (!p->event_source) |
1253 | continue; | |
1254 | ||
1255 | r = sd_event_source_set_enabled(p->event_source, SD_EVENT_OFF); | |
1256 | if (r < 0) | |
f2341e0a | 1257 | log_unit_debug_errno(UNIT(s), r, "Failed to disable event source: %m"); |
83c60c9f | 1258 | } |
034c6ed7 LP |
1259 | } |
1260 | ||
1261 | static int socket_watch_fds(Socket *s) { | |
1262 | SocketPort *p; | |
1263 | int r; | |
1264 | ||
1265 | assert(s); | |
83c60c9f | 1266 | |
034c6ed7 LP |
1267 | LIST_FOREACH(port, p, s->ports) { |
1268 | if (p->fd < 0) | |
1269 | continue; | |
1270 | ||
718db961 LP |
1271 | if (p->event_source) |
1272 | r = sd_event_source_set_enabled(p->event_source, SD_EVENT_ON); | |
1273 | else | |
151b9b96 | 1274 | r = sd_event_add_io(UNIT(s)->manager->event, &p->event_source, p->fd, EPOLLIN, socket_dispatch_io, p); |
4f2d528d | 1275 | |
718db961 | 1276 | if (r < 0) { |
f2341e0a | 1277 | log_unit_warning_errno(UNIT(s), r, "Failed to watch listening fds: %m"); |
034c6ed7 | 1278 | goto fail; |
718db961 | 1279 | } |
cfa9677b MM |
1280 | |
1281 | (void) sd_event_source_set_description(p->event_source, "socket-port-io"); | |
034c6ed7 | 1282 | } |
83c60c9f | 1283 | |
542563ba | 1284 | return 0; |
83c60c9f | 1285 | |
034c6ed7 LP |
1286 | fail: |
1287 | socket_unwatch_fds(s); | |
1288 | return r; | |
1289 | } | |
1290 | ||
1291 | static void socket_set_state(Socket *s, SocketState state) { | |
1292 | SocketState old_state; | |
1293 | assert(s); | |
1294 | ||
1295 | old_state = s->state; | |
1296 | s->state = state; | |
1297 | ||
bd1fe7c7 LP |
1298 | if (!IN_SET(state, |
1299 | SOCKET_START_PRE, | |
3900e5fd | 1300 | SOCKET_START_CHOWN, |
bd1fe7c7 LP |
1301 | SOCKET_START_POST, |
1302 | SOCKET_STOP_PRE, | |
1303 | SOCKET_STOP_PRE_SIGTERM, | |
1304 | SOCKET_STOP_PRE_SIGKILL, | |
1305 | SOCKET_STOP_POST, | |
1306 | SOCKET_FINAL_SIGTERM, | |
1307 | SOCKET_FINAL_SIGKILL)) { | |
718db961 LP |
1308 | |
1309 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
5e94833f | 1310 | socket_unwatch_control_pid(s); |
034c6ed7 | 1311 | s->control_command = NULL; |
a16e1123 | 1312 | s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID; |
e537352b | 1313 | } |
034c6ed7 | 1314 | |
a16e1123 LP |
1315 | if (state != SOCKET_LISTENING) |
1316 | socket_unwatch_fds(s); | |
1317 | ||
bd1fe7c7 | 1318 | if (!IN_SET(state, |
3900e5fd | 1319 | SOCKET_START_CHOWN, |
bd1fe7c7 LP |
1320 | SOCKET_START_POST, |
1321 | SOCKET_LISTENING, | |
1322 | SOCKET_RUNNING, | |
1323 | SOCKET_STOP_PRE, | |
1324 | SOCKET_STOP_PRE_SIGTERM, | |
1325 | SOCKET_STOP_PRE_SIGKILL)) | |
034c6ed7 LP |
1326 | socket_close_fds(s); |
1327 | ||
e537352b | 1328 | if (state != old_state) |
f2341e0a | 1329 | log_unit_debug(UNIT(s), "Changed %s -> %s", socket_state_to_string(old_state), socket_state_to_string(state)); |
acbb0225 | 1330 | |
e2f3b44c | 1331 | unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], true); |
034c6ed7 LP |
1332 | } |
1333 | ||
be847e82 | 1334 | static int socket_coldplug(Unit *u) { |
a16e1123 LP |
1335 | Socket *s = SOCKET(u); |
1336 | int r; | |
1337 | ||
1338 | assert(s); | |
1339 | assert(s->state == SOCKET_DEAD); | |
1340 | ||
e821075a LP |
1341 | if (s->deserialized_state == s->state) |
1342 | return 0; | |
a16e1123 | 1343 | |
3900e5fd LP |
1344 | if (IN_SET(s->deserialized_state, |
1345 | SOCKET_START_PRE, | |
1346 | SOCKET_START_CHOWN, | |
1347 | SOCKET_START_POST, | |
1348 | SOCKET_STOP_PRE, | |
1349 | SOCKET_STOP_PRE_SIGTERM, | |
1350 | SOCKET_STOP_PRE_SIGKILL, | |
1351 | SOCKET_STOP_POST, | |
1352 | SOCKET_FINAL_SIGTERM, | |
1353 | SOCKET_FINAL_SIGKILL)) { | |
a16e1123 | 1354 | |
e821075a LP |
1355 | if (s->control_pid <= 0) |
1356 | return -EBADMSG; | |
a16e1123 | 1357 | |
e821075a LP |
1358 | r = unit_watch_pid(UNIT(s), s->control_pid); |
1359 | if (r < 0) | |
1360 | return r; | |
a16e1123 | 1361 | |
e821075a LP |
1362 | r = socket_arm_timer(s); |
1363 | if (r < 0) | |
1364 | return r; | |
1365 | } | |
a16e1123 | 1366 | |
3900e5fd LP |
1367 | if (IN_SET(s->deserialized_state, |
1368 | SOCKET_START_CHOWN, | |
1369 | SOCKET_START_POST, | |
1370 | SOCKET_LISTENING, | |
1371 | SOCKET_RUNNING, | |
1372 | SOCKET_STOP_PRE, | |
1373 | SOCKET_STOP_PRE_SIGTERM, | |
1374 | SOCKET_STOP_PRE_SIGKILL)) { | |
e821075a LP |
1375 | r = socket_open_fds(s); |
1376 | if (r < 0) | |
1377 | return r; | |
1378 | } | |
a16e1123 | 1379 | |
e821075a LP |
1380 | if (s->deserialized_state == SOCKET_LISTENING) { |
1381 | r = socket_watch_fds(s); | |
1382 | if (r < 0) | |
1383 | return r; | |
a16e1123 LP |
1384 | } |
1385 | ||
e821075a | 1386 | socket_set_state(s, s->deserialized_state); |
a16e1123 LP |
1387 | return 0; |
1388 | } | |
1389 | ||
e537352b | 1390 | static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) { |
3900e5fd | 1391 | _cleanup_free_ char **argv = NULL; |
034c6ed7 LP |
1392 | pid_t pid; |
1393 | int r; | |
9fa95f85 DM |
1394 | ExecParameters exec_params = { |
1395 | .apply_permissions = true, | |
1396 | .apply_chroot = true, | |
1397 | .apply_tty_stdin = true, | |
6f856a09 | 1398 | .bus_endpoint_fd = -1, |
9fa95f85 | 1399 | }; |
034c6ed7 LP |
1400 | |
1401 | assert(s); | |
1402 | assert(c); | |
1403 | assert(_pid); | |
1404 | ||
5ad096b3 LP |
1405 | (void) unit_realize_cgroup(UNIT(s)); |
1406 | if (s->reset_cpu_usage) { | |
1407 | (void) unit_reset_cpu_usage(UNIT(s)); | |
1408 | s->reset_cpu_usage = false; | |
1409 | } | |
4ad49000 | 1410 | |
613b411c LP |
1411 | r = unit_setup_exec_runtime(UNIT(s)); |
1412 | if (r < 0) | |
1413 | goto fail; | |
1414 | ||
718db961 | 1415 | r = socket_arm_timer(s); |
36697dc0 | 1416 | if (r < 0) |
e537352b | 1417 | goto fail; |
034c6ed7 | 1418 | |
19f6d710 LP |
1419 | r = unit_full_printf_strv(UNIT(s), c->argv, &argv); |
1420 | if (r < 0) | |
9e2f7c11 | 1421 | goto fail; |
9e2f7c11 | 1422 | |
9fa95f85 DM |
1423 | exec_params.argv = argv; |
1424 | exec_params.environment = UNIT(s)->manager->environment; | |
1425 | exec_params.confirm_spawn = UNIT(s)->manager->confirm_spawn; | |
1426 | exec_params.cgroup_supported = UNIT(s)->manager->cgroup_supported; | |
1427 | exec_params.cgroup_path = UNIT(s)->cgroup_path; | |
a931ad47 | 1428 | exec_params.cgroup_delegate = s->cgroup_context.delegate; |
9fa95f85 | 1429 | exec_params.runtime_prefix = manager_get_runtime_prefix(UNIT(s)->manager); |
9fa95f85 | 1430 | |
f2341e0a LP |
1431 | r = exec_spawn(UNIT(s), |
1432 | c, | |
9e2f7c11 | 1433 | &s->exec_context, |
9fa95f85 | 1434 | &exec_params, |
613b411c | 1435 | s->exec_runtime, |
9e2f7c11 | 1436 | &pid); |
cee288ad TA |
1437 | if (r < 0) |
1438 | goto fail; | |
9e2f7c11 | 1439 | |
3900e5fd | 1440 | r = unit_watch_pid(UNIT(s), pid); |
9e2f7c11 | 1441 | if (r < 0) |
3900e5fd | 1442 | /* FIXME: we need to do something here */ |
034c6ed7 LP |
1443 | goto fail; |
1444 | ||
3900e5fd LP |
1445 | *_pid = pid; |
1446 | return 0; | |
1447 | ||
1448 | fail: | |
1449 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
1450 | return r; | |
1451 | } | |
1452 | ||
1453 | static int socket_chown(Socket *s, pid_t *_pid) { | |
1454 | pid_t pid; | |
1455 | int r; | |
1456 | ||
1457 | r = socket_arm_timer(s); | |
1458 | if (r < 0) | |
1459 | goto fail; | |
1460 | ||
1461 | /* We have to resolve the user names out-of-process, hence | |
1462 | * let's fork here. It's messy, but well, what can we do? */ | |
1463 | ||
1464 | pid = fork(); | |
1465 | if (pid < 0) | |
1466 | return -errno; | |
1467 | ||
1468 | if (pid == 0) { | |
1469 | SocketPort *p; | |
fed1e721 LP |
1470 | uid_t uid = UID_INVALID; |
1471 | gid_t gid = GID_INVALID; | |
3900e5fd LP |
1472 | int ret; |
1473 | ||
1474 | default_signals(SIGNALS_CRASH_HANDLER, SIGNALS_IGNORE, -1); | |
1475 | ignore_signals(SIGPIPE, -1); | |
1476 | log_forget_fds(); | |
1477 | ||
1478 | if (!isempty(s->user)) { | |
1479 | const char *user = s->user; | |
1480 | ||
1481 | r = get_user_creds(&user, &uid, &gid, NULL, NULL); | |
1482 | if (r < 0) { | |
1483 | ret = EXIT_USER; | |
1484 | goto fail_child; | |
1485 | } | |
1486 | } | |
1487 | ||
1488 | if (!isempty(s->group)) { | |
1489 | const char *group = s->group; | |
1490 | ||
1491 | r = get_group_creds(&group, &gid); | |
1492 | if (r < 0) { | |
1493 | ret = EXIT_GROUP; | |
1494 | goto fail_child; | |
1495 | } | |
1496 | } | |
1497 | ||
1498 | LIST_FOREACH(port, p, s->ports) { | |
e5a1c18d | 1499 | const char *path = NULL; |
3900e5fd LP |
1500 | |
1501 | if (p->type == SOCKET_SOCKET) | |
1502 | path = socket_address_get_path(&p->address); | |
1503 | else if (p->type == SOCKET_FIFO) | |
1504 | path = p->path; | |
1505 | ||
1506 | if (!path) | |
1507 | continue; | |
1508 | ||
1509 | if (chown(path, uid, gid) < 0) { | |
1510 | r = -errno; | |
1511 | ret = EXIT_CHOWN; | |
1512 | goto fail_child; | |
1513 | } | |
1514 | } | |
1515 | ||
1516 | _exit(0); | |
1517 | ||
1518 | fail_child: | |
1519 | log_open(); | |
da927ba9 | 1520 | log_error_errno(r, "Failed to chown socket at step %s: %m", exit_status_to_string(ret, EXIT_STATUS_SYSTEMD)); |
3900e5fd LP |
1521 | |
1522 | _exit(ret); | |
1523 | } | |
1524 | ||
718db961 LP |
1525 | r = unit_watch_pid(UNIT(s), pid); |
1526 | if (r < 0) | |
034c6ed7 | 1527 | goto fail; |
83c60c9f | 1528 | |
034c6ed7 | 1529 | *_pid = pid; |
034c6ed7 LP |
1530 | return 0; |
1531 | ||
1532 | fail: | |
718db961 | 1533 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
83c60c9f | 1534 | return r; |
542563ba LP |
1535 | } |
1536 | ||
cfc4eb4c | 1537 | static void socket_enter_dead(Socket *s, SocketResult f) { |
034c6ed7 LP |
1538 | assert(s); |
1539 | ||
cfc4eb4c LP |
1540 | if (f != SOCKET_SUCCESS) |
1541 | s->result = f; | |
034c6ed7 | 1542 | |
613b411c LP |
1543 | exec_runtime_destroy(s->exec_runtime); |
1544 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
1545 | ||
e66cf1a3 LP |
1546 | exec_context_destroy_runtime_directory(&s->exec_context, manager_get_runtime_prefix(UNIT(s)->manager)); |
1547 | ||
cfc4eb4c | 1548 | socket_set_state(s, s->result != SOCKET_SUCCESS ? SOCKET_FAILED : SOCKET_DEAD); |
034c6ed7 LP |
1549 | } |
1550 | ||
cfc4eb4c | 1551 | static void socket_enter_signal(Socket *s, SocketState state, SocketResult f); |
80876c20 | 1552 | |
cfc4eb4c | 1553 | static void socket_enter_stop_post(Socket *s, SocketResult f) { |
034c6ed7 LP |
1554 | int r; |
1555 | assert(s); | |
1556 | ||
cfc4eb4c LP |
1557 | if (f != SOCKET_SUCCESS) |
1558 | s->result = f; | |
034c6ed7 | 1559 | |
5e94833f | 1560 | socket_unwatch_control_pid(s); |
a16e1123 | 1561 | s->control_command_id = SOCKET_EXEC_STOP_POST; |
3900e5fd | 1562 | s->control_command = s->exec_command[SOCKET_EXEC_STOP_POST]; |
a16e1123 | 1563 | |
3900e5fd LP |
1564 | if (s->control_command) { |
1565 | r = socket_spawn(s, s->control_command, &s->control_pid); | |
1566 | if (r < 0) | |
034c6ed7 LP |
1567 | goto fail; |
1568 | ||
80876c20 LP |
1569 | socket_set_state(s, SOCKET_STOP_POST); |
1570 | } else | |
cfc4eb4c | 1571 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_SUCCESS); |
034c6ed7 LP |
1572 | |
1573 | return; | |
1574 | ||
1575 | fail: | |
f2341e0a | 1576 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-post' task: %m"); |
cfc4eb4c | 1577 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_RESOURCES); |
034c6ed7 LP |
1578 | } |
1579 | ||
cfc4eb4c | 1580 | static void socket_enter_signal(Socket *s, SocketState state, SocketResult f) { |
034c6ed7 LP |
1581 | int r; |
1582 | ||
1583 | assert(s); | |
1584 | ||
cfc4eb4c LP |
1585 | if (f != SOCKET_SUCCESS) |
1586 | s->result = f; | |
034c6ed7 | 1587 | |
cd2086fe LP |
1588 | r = unit_kill_context( |
1589 | UNIT(s), | |
1590 | &s->kill_context, | |
db2cb23b UTL |
1591 | (state != SOCKET_STOP_PRE_SIGTERM && state != SOCKET_FINAL_SIGTERM) ? |
1592 | KILL_KILL : KILL_TERMINATE, | |
cd2086fe LP |
1593 | -1, |
1594 | s->control_pid, | |
1595 | false); | |
1596 | if (r < 0) | |
1597 | goto fail; | |
034c6ed7 | 1598 | |
cd2086fe | 1599 | if (r > 0) { |
718db961 | 1600 | r = socket_arm_timer(s); |
36697dc0 | 1601 | if (r < 0) |
80876c20 | 1602 | goto fail; |
d6ea93e3 | 1603 | |
80876c20 | 1604 | socket_set_state(s, state); |
ac84d1fb LP |
1605 | } else if (state == SOCKET_STOP_PRE_SIGTERM) |
1606 | socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, SOCKET_SUCCESS); | |
1607 | else if (state == SOCKET_STOP_PRE_SIGKILL) | |
cfc4eb4c | 1608 | socket_enter_stop_post(s, SOCKET_SUCCESS); |
ac84d1fb LP |
1609 | else if (state == SOCKET_FINAL_SIGTERM) |
1610 | socket_enter_signal(s, SOCKET_FINAL_SIGKILL, SOCKET_SUCCESS); | |
80876c20 | 1611 | else |
cfc4eb4c | 1612 | socket_enter_dead(s, SOCKET_SUCCESS); |
034c6ed7 LP |
1613 | |
1614 | return; | |
1615 | ||
1616 | fail: | |
f2341e0a | 1617 | log_unit_warning_errno(UNIT(s), r, "Failed to kill processes: %m"); |
034c6ed7 LP |
1618 | |
1619 | if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL) | |
cfc4eb4c | 1620 | socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 | 1621 | else |
cfc4eb4c | 1622 | socket_enter_dead(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 LP |
1623 | } |
1624 | ||
cfc4eb4c | 1625 | static void socket_enter_stop_pre(Socket *s, SocketResult f) { |
034c6ed7 LP |
1626 | int r; |
1627 | assert(s); | |
1628 | ||
cfc4eb4c LP |
1629 | if (f != SOCKET_SUCCESS) |
1630 | s->result = f; | |
034c6ed7 | 1631 | |
5e94833f | 1632 | socket_unwatch_control_pid(s); |
a16e1123 | 1633 | s->control_command_id = SOCKET_EXEC_STOP_PRE; |
3900e5fd | 1634 | s->control_command = s->exec_command[SOCKET_EXEC_STOP_PRE]; |
a16e1123 | 1635 | |
3900e5fd LP |
1636 | if (s->control_command) { |
1637 | r = socket_spawn(s, s->control_command, &s->control_pid); | |
1638 | if (r < 0) | |
034c6ed7 LP |
1639 | goto fail; |
1640 | ||
80876c20 LP |
1641 | socket_set_state(s, SOCKET_STOP_PRE); |
1642 | } else | |
cfc4eb4c | 1643 | socket_enter_stop_post(s, SOCKET_SUCCESS); |
034c6ed7 LP |
1644 | |
1645 | return; | |
1646 | ||
1647 | fail: | |
f2341e0a | 1648 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'stop-pre' task: %m"); |
cfc4eb4c | 1649 | socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 LP |
1650 | } |
1651 | ||
e9af15c3 LP |
1652 | static void socket_enter_listening(Socket *s) { |
1653 | int r; | |
1654 | assert(s); | |
1655 | ||
cfc4eb4c LP |
1656 | r = socket_watch_fds(s); |
1657 | if (r < 0) { | |
f2341e0a | 1658 | log_unit_warning_errno(UNIT(s), r, "Failed to watch sockets: %m"); |
e9af15c3 LP |
1659 | goto fail; |
1660 | } | |
1661 | ||
1662 | socket_set_state(s, SOCKET_LISTENING); | |
1663 | return; | |
1664 | ||
1665 | fail: | |
cfc4eb4c | 1666 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); |
e9af15c3 LP |
1667 | } |
1668 | ||
034c6ed7 LP |
1669 | static void socket_enter_start_post(Socket *s) { |
1670 | int r; | |
1671 | assert(s); | |
1672 | ||
3900e5fd LP |
1673 | socket_unwatch_control_pid(s); |
1674 | s->control_command_id = SOCKET_EXEC_START_POST; | |
1675 | s->control_command = s->exec_command[SOCKET_EXEC_START_POST]; | |
1676 | ||
1677 | if (s->control_command) { | |
1678 | r = socket_spawn(s, s->control_command, &s->control_pid); | |
1679 | if (r < 0) { | |
f2341e0a | 1680 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-post' task: %m"); |
3900e5fd LP |
1681 | goto fail; |
1682 | } | |
1683 | ||
1684 | socket_set_state(s, SOCKET_START_POST); | |
1685 | } else | |
1686 | socket_enter_listening(s); | |
1687 | ||
1688 | return; | |
1689 | ||
1690 | fail: | |
1691 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); | |
1692 | } | |
1693 | ||
1694 | static void socket_enter_start_chown(Socket *s) { | |
1695 | int r; | |
1696 | ||
1697 | assert(s); | |
1698 | ||
cfc4eb4c LP |
1699 | r = socket_open_fds(s); |
1700 | if (r < 0) { | |
f2341e0a | 1701 | log_unit_warning_errno(UNIT(s), r, "Failed to listen on sockets: %m"); |
034c6ed7 LP |
1702 | goto fail; |
1703 | } | |
1704 | ||
3900e5fd | 1705 | if (!isempty(s->user) || !isempty(s->group)) { |
5e94833f | 1706 | |
3900e5fd LP |
1707 | socket_unwatch_control_pid(s); |
1708 | s->control_command_id = SOCKET_EXEC_START_CHOWN; | |
1709 | s->control_command = NULL; | |
a16e1123 | 1710 | |
3900e5fd | 1711 | r = socket_chown(s, &s->control_pid); |
cfc4eb4c | 1712 | if (r < 0) { |
f2341e0a | 1713 | log_unit_warning_errno(UNIT(s), r, "Failed to fork 'start-chown' task: %m"); |
034c6ed7 LP |
1714 | goto fail; |
1715 | } | |
1716 | ||
3900e5fd | 1717 | socket_set_state(s, SOCKET_START_CHOWN); |
80876c20 | 1718 | } else |
3900e5fd | 1719 | socket_enter_start_post(s); |
034c6ed7 LP |
1720 | |
1721 | return; | |
1722 | ||
1723 | fail: | |
cfc4eb4c | 1724 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 LP |
1725 | } |
1726 | ||
1727 | static void socket_enter_start_pre(Socket *s) { | |
1728 | int r; | |
1729 | assert(s); | |
1730 | ||
5e94833f | 1731 | socket_unwatch_control_pid(s); |
a16e1123 | 1732 | s->control_command_id = SOCKET_EXEC_START_PRE; |
3900e5fd | 1733 | s->control_command = s->exec_command[SOCKET_EXEC_START_PRE]; |
a16e1123 | 1734 | |
3900e5fd | 1735 | if (s->control_command) { |
e821075a | 1736 | r = socket_spawn(s, s->control_command, &s->control_pid); |
3900e5fd | 1737 | if (r < 0) { |
f2341e0a | 1738 | log_unit_warning_errno(UNIT(s), r, "Failed to run 'start-pre' task: %m"); |
034c6ed7 | 1739 | goto fail; |
3900e5fd | 1740 | } |
034c6ed7 | 1741 | |
80876c20 LP |
1742 | socket_set_state(s, SOCKET_START_PRE); |
1743 | } else | |
3900e5fd | 1744 | socket_enter_start_chown(s); |
034c6ed7 LP |
1745 | |
1746 | return; | |
1747 | ||
1748 | fail: | |
cfc4eb4c | 1749 | socket_enter_dead(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 LP |
1750 | } |
1751 | ||
4f2d528d | 1752 | static void socket_enter_running(Socket *s, int cfd) { |
718db961 | 1753 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 LP |
1754 | int r; |
1755 | ||
1756 | assert(s); | |
1757 | ||
ba3e67a7 LP |
1758 | /* We don't take connections anymore if we are supposed to |
1759 | * shut down anyway */ | |
31afa0a4 | 1760 | if (unit_stop_pending(UNIT(s))) { |
e821075a | 1761 | |
f2341e0a | 1762 | log_unit_debug(UNIT(s), "Suppressing connection request since unit stop is scheduled."); |
5d909e3e | 1763 | |
7c610628 | 1764 | if (cfd >= 0) |
03e334a1 | 1765 | safe_close(cfd); |
7c610628 LP |
1766 | else { |
1767 | /* Flush all sockets by closing and reopening them */ | |
1768 | socket_close_fds(s); | |
1769 | ||
16ac4014 LP |
1770 | r = socket_open_fds(s); |
1771 | if (r < 0) { | |
f2341e0a | 1772 | log_unit_warning_errno(UNIT(s), r, "Failed to listen on sockets: %m"); |
16ac4014 LP |
1773 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); |
1774 | return; | |
1775 | } | |
1776 | ||
1a710b43 MS |
1777 | r = socket_watch_fds(s); |
1778 | if (r < 0) { | |
f2341e0a | 1779 | log_unit_warning_errno(UNIT(s), r, "Failed to watch sockets: %m"); |
cfc4eb4c | 1780 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); |
7c610628 LP |
1781 | } |
1782 | } | |
1783 | ||
ba3e67a7 LP |
1784 | return; |
1785 | } | |
1786 | ||
4f2d528d | 1787 | if (cfd < 0) { |
57020a3a | 1788 | Iterator i; |
e821075a | 1789 | Unit *other; |
f976f3f6 | 1790 | bool pending = false; |
f976f3f6 LP |
1791 | |
1792 | /* If there's already a start pending don't bother to | |
1793 | * do anything */ | |
e821075a LP |
1794 | SET_FOREACH(other, UNIT(s)->dependencies[UNIT_TRIGGERS], i) |
1795 | if (unit_active_or_pending(other)) { | |
57020a3a LP |
1796 | pending = true; |
1797 | break; | |
1798 | } | |
f976f3f6 | 1799 | |
1a710b43 | 1800 | if (!pending) { |
640ace4a | 1801 | if (!UNIT_ISSET(s->service)) { |
f2341e0a | 1802 | log_unit_error(UNIT(s), "Service to activate vanished, refusing activation."); |
640ace4a LP |
1803 | r = -ENOENT; |
1804 | goto fail; | |
1805 | } | |
1806 | ||
1a710b43 MS |
1807 | r = manager_add_job(UNIT(s)->manager, JOB_START, UNIT_DEREF(s->service), JOB_REPLACE, true, &error, NULL); |
1808 | if (r < 0) | |
f976f3f6 | 1809 | goto fail; |
1a710b43 | 1810 | } |
4f2d528d LP |
1811 | |
1812 | socket_set_state(s, SOCKET_RUNNING); | |
1813 | } else { | |
e55001eb | 1814 | _cleanup_free_ char *prefix = NULL, *instance = NULL, *name = NULL; |
b15bdda8 | 1815 | Service *service; |
4f2d528d | 1816 | |
6cf6bbc2 | 1817 | if (s->n_connections >= s->max_connections) { |
f2341e0a | 1818 | log_unit_warning(UNIT(s), "Too many incoming connections (%u)", s->n_connections); |
03e334a1 | 1819 | safe_close(cfd); |
6cf6bbc2 LP |
1820 | return; |
1821 | } | |
1822 | ||
1a710b43 MS |
1823 | r = socket_instantiate_service(s); |
1824 | if (r < 0) | |
b15bdda8 LP |
1825 | goto fail; |
1826 | ||
1a710b43 MS |
1827 | r = instance_from_socket(cfd, s->n_accepted, &instance); |
1828 | if (r < 0) { | |
1829 | if (r != -ENOTCONN) | |
1830 | goto fail; | |
1831 | ||
1832 | /* ENOTCONN is legitimate if TCP RST was received. | |
1833 | * This connection is over, but the socket unit lives on. */ | |
03e334a1 | 1834 | safe_close(cfd); |
1a710b43 MS |
1835 | return; |
1836 | } | |
4f2d528d | 1837 | |
7410616c LP |
1838 | r = unit_name_to_prefix(UNIT(s)->id, &prefix); |
1839 | if (r < 0) | |
4f2d528d | 1840 | goto fail; |
4f2d528d | 1841 | |
7410616c LP |
1842 | r = unit_name_build(prefix, instance, ".service", &name); |
1843 | if (r < 0) | |
b6dbbe1c | 1844 | goto fail; |
4f2d528d | 1845 | |
1a710b43 | 1846 | r = unit_add_name(UNIT_DEREF(s->service), name); |
e55001eb | 1847 | if (r < 0) |
4f2d528d | 1848 | goto fail; |
b15bdda8 | 1849 | |
57020a3a LP |
1850 | service = SERVICE(UNIT_DEREF(s->service)); |
1851 | unit_ref_unset(&s->service); | |
b15bdda8 | 1852 | s->n_accepted ++; |
4f2d528d | 1853 | |
1124fe6f | 1854 | UNIT(service)->no_gc = false; |
6c073082 | 1855 | |
b15bdda8 | 1856 | unit_choose_id(UNIT(service), name); |
b15bdda8 | 1857 | |
16115b0a | 1858 | r = service_set_socket_fd(service, cfd, s, s->selinux_context_from_net); |
1a710b43 | 1859 | if (r < 0) |
4f2d528d LP |
1860 | goto fail; |
1861 | ||
1862 | cfd = -1; | |
6cf6bbc2 LP |
1863 | s->n_connections ++; |
1864 | ||
1a710b43 MS |
1865 | r = manager_add_job(UNIT(s)->manager, JOB_START, UNIT(service), JOB_REPLACE, true, &error, NULL); |
1866 | if (r < 0) | |
4f2d528d | 1867 | goto fail; |
c4e2ceae LP |
1868 | |
1869 | /* Notify clients about changed counters */ | |
1870 | unit_add_to_dbus_queue(UNIT(s)); | |
4f2d528d | 1871 | } |
034c6ed7 | 1872 | |
034c6ed7 LP |
1873 | return; |
1874 | ||
1875 | fail: | |
f2341e0a LP |
1876 | log_unit_warning(UNIT(s), "Failed to queue service startup job (Maybe the service file is missing or not a %s unit?): %s", |
1877 | cfd >= 0 ? "template" : "non-template", | |
718db961 | 1878 | bus_error_message(&error, r)); |
e821075a | 1879 | |
60089004 | 1880 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); |
03e334a1 | 1881 | safe_close(cfd); |
034c6ed7 LP |
1882 | } |
1883 | ||
cfc4eb4c | 1884 | static void socket_run_next(Socket *s) { |
034c6ed7 LP |
1885 | int r; |
1886 | ||
1887 | assert(s); | |
1888 | assert(s->control_command); | |
1889 | assert(s->control_command->command_next); | |
1890 | ||
5e94833f LP |
1891 | socket_unwatch_control_pid(s); |
1892 | ||
034c6ed7 LP |
1893 | s->control_command = s->control_command->command_next; |
1894 | ||
e821075a LP |
1895 | r = socket_spawn(s, s->control_command, &s->control_pid); |
1896 | if (r < 0) | |
034c6ed7 LP |
1897 | goto fail; |
1898 | ||
1899 | return; | |
1900 | ||
1901 | fail: | |
f2341e0a | 1902 | log_unit_warning_errno(UNIT(s), r, "Failed to run next task: %m"); |
80876c20 LP |
1903 | |
1904 | if (s->state == SOCKET_START_POST) | |
cfc4eb4c | 1905 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 | 1906 | else if (s->state == SOCKET_STOP_POST) |
cfc4eb4c | 1907 | socket_enter_dead(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 | 1908 | else |
cfc4eb4c | 1909 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_RESOURCES); |
034c6ed7 LP |
1910 | } |
1911 | ||
87f0e418 LP |
1912 | static int socket_start(Unit *u) { |
1913 | Socket *s = SOCKET(u); | |
83c60c9f LP |
1914 | |
1915 | assert(s); | |
1916 | ||
034c6ed7 LP |
1917 | /* We cannot fulfill this request right now, try again later |
1918 | * please! */ | |
3900e5fd LP |
1919 | if (IN_SET(s->state, |
1920 | SOCKET_STOP_PRE, | |
1921 | SOCKET_STOP_PRE_SIGKILL, | |
1922 | SOCKET_STOP_PRE_SIGTERM, | |
1923 | SOCKET_STOP_POST, | |
1924 | SOCKET_FINAL_SIGTERM, | |
1925 | SOCKET_FINAL_SIGKILL)) | |
034c6ed7 LP |
1926 | return -EAGAIN; |
1927 | ||
a4152e3f | 1928 | /* Already on it! */ |
3900e5fd LP |
1929 | if (IN_SET(s->state, |
1930 | SOCKET_START_PRE, | |
1931 | SOCKET_START_CHOWN, | |
1932 | SOCKET_START_POST)) | |
034c6ed7 | 1933 | return 0; |
83c60c9f | 1934 | |
034c6ed7 | 1935 | /* Cannot run this without the service being around */ |
9444b1f2 | 1936 | if (UNIT_ISSET(s->service)) { |
57020a3a LP |
1937 | Service *service; |
1938 | ||
1939 | service = SERVICE(UNIT_DEREF(s->service)); | |
1940 | ||
1124fe6f | 1941 | if (UNIT(service)->load_state != UNIT_LOADED) { |
f2341e0a | 1942 | log_unit_error(u, "Socket service %s not loaded, refusing.", UNIT(service)->id); |
4f2d528d | 1943 | return -ENOENT; |
4ac9236f | 1944 | } |
4f2d528d | 1945 | |
35b8ca3a | 1946 | /* If the service is already active we cannot start the |
4f2d528d | 1947 | * socket */ |
57020a3a LP |
1948 | if (service->state != SERVICE_DEAD && |
1949 | service->state != SERVICE_FAILED && | |
1950 | service->state != SERVICE_AUTO_RESTART) { | |
f2341e0a | 1951 | log_unit_error(u, "Socket service %s already active, refusing.", UNIT(service)->id); |
4f2d528d | 1952 | return -EBUSY; |
4ac9236f | 1953 | } |
4f2d528d | 1954 | } |
e537352b | 1955 | |
fdf20a31 | 1956 | assert(s->state == SOCKET_DEAD || s->state == SOCKET_FAILED); |
83c60c9f | 1957 | |
cfc4eb4c | 1958 | s->result = SOCKET_SUCCESS; |
5ad096b3 LP |
1959 | s->reset_cpu_usage = true; |
1960 | ||
034c6ed7 | 1961 | socket_enter_start_pre(s); |
e821075a | 1962 | |
82a2b6bb | 1963 | return 1; |
034c6ed7 | 1964 | } |
83c60c9f | 1965 | |
87f0e418 LP |
1966 | static int socket_stop(Unit *u) { |
1967 | Socket *s = SOCKET(u); | |
034c6ed7 LP |
1968 | |
1969 | assert(s); | |
1970 | ||
e537352b | 1971 | /* Already on it */ |
3900e5fd LP |
1972 | if (IN_SET(s->state, |
1973 | SOCKET_STOP_PRE, | |
1974 | SOCKET_STOP_PRE_SIGTERM, | |
1975 | SOCKET_STOP_PRE_SIGKILL, | |
1976 | SOCKET_STOP_POST, | |
1977 | SOCKET_FINAL_SIGTERM, | |
1978 | SOCKET_FINAL_SIGKILL)) | |
e537352b LP |
1979 | return 0; |
1980 | ||
3f6c78dc LP |
1981 | /* If there's already something running we go directly into |
1982 | * kill mode. */ | |
3900e5fd LP |
1983 | if (IN_SET(s->state, |
1984 | SOCKET_START_PRE, | |
1985 | SOCKET_START_CHOWN, | |
1986 | SOCKET_START_POST)) { | |
cfc4eb4c | 1987 | socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, SOCKET_SUCCESS); |
3f6c78dc LP |
1988 | return -EAGAIN; |
1989 | } | |
1990 | ||
034c6ed7 | 1991 | assert(s->state == SOCKET_LISTENING || s->state == SOCKET_RUNNING); |
83c60c9f | 1992 | |
cfc4eb4c | 1993 | socket_enter_stop_pre(s, SOCKET_SUCCESS); |
82a2b6bb | 1994 | return 1; |
542563ba LP |
1995 | } |
1996 | ||
a16e1123 LP |
1997 | static int socket_serialize(Unit *u, FILE *f, FDSet *fds) { |
1998 | Socket *s = SOCKET(u); | |
1999 | SocketPort *p; | |
2000 | int r; | |
2001 | ||
2002 | assert(u); | |
2003 | assert(f); | |
2004 | assert(fds); | |
2005 | ||
2006 | unit_serialize_item(u, f, "state", socket_state_to_string(s->state)); | |
cfc4eb4c | 2007 | unit_serialize_item(u, f, "result", socket_result_to_string(s->result)); |
a16e1123 LP |
2008 | unit_serialize_item_format(u, f, "n-accepted", "%u", s->n_accepted); |
2009 | ||
2010 | if (s->control_pid > 0) | |
de0671ee | 2011 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 LP |
2012 | |
2013 | if (s->control_command_id >= 0) | |
2014 | unit_serialize_item(u, f, "control-command", socket_exec_command_to_string(s->control_command_id)); | |
2015 | ||
2016 | LIST_FOREACH(port, p, s->ports) { | |
2017 | int copy; | |
2018 | ||
2019 | if (p->fd < 0) | |
2020 | continue; | |
2021 | ||
613b411c LP |
2022 | copy = fdset_put_dup(fds, p->fd); |
2023 | if (copy < 0) | |
a16e1123 LP |
2024 | return copy; |
2025 | ||
2026 | if (p->type == SOCKET_SOCKET) { | |
613b411c | 2027 | _cleanup_free_ char *t = NULL; |
a16e1123 | 2028 | |
ee092817 LP |
2029 | r = socket_address_print(&p->address, &t); |
2030 | if (r < 0) | |
a16e1123 LP |
2031 | return r; |
2032 | ||
7a22745a LP |
2033 | if (socket_address_family(&p->address) == AF_NETLINK) |
2034 | unit_serialize_item_format(u, f, "netlink", "%i %s", copy, t); | |
2035 | else | |
2036 | unit_serialize_item_format(u, f, "socket", "%i %i %s", copy, p->address.type, t); | |
613b411c | 2037 | |
b0a3f2bc LP |
2038 | } else if (p->type == SOCKET_SPECIAL) |
2039 | unit_serialize_item_format(u, f, "special", "%i %s", copy, p->path); | |
ee092817 LP |
2040 | else if (p->type == SOCKET_MQUEUE) |
2041 | unit_serialize_item_format(u, f, "mqueue", "%i %s", copy, p->path); | |
b0a3f2bc | 2042 | else { |
a16e1123 LP |
2043 | assert(p->type == SOCKET_FIFO); |
2044 | unit_serialize_item_format(u, f, "fifo", "%i %s", copy, p->path); | |
2045 | } | |
2046 | } | |
2047 | ||
2048 | return 0; | |
2049 | } | |
2050 | ||
2051 | static int socket_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
2052 | Socket *s = SOCKET(u); | |
a16e1123 LP |
2053 | |
2054 | assert(u); | |
2055 | assert(key); | |
2056 | assert(value); | |
a16e1123 LP |
2057 | |
2058 | if (streq(key, "state")) { | |
2059 | SocketState state; | |
2060 | ||
ee092817 LP |
2061 | state = socket_state_from_string(value); |
2062 | if (state < 0) | |
f2341e0a | 2063 | log_unit_debug(u, "Failed to parse state value: %s", value); |
a16e1123 LP |
2064 | else |
2065 | s->deserialized_state = state; | |
cfc4eb4c LP |
2066 | } else if (streq(key, "result")) { |
2067 | SocketResult f; | |
a16e1123 | 2068 | |
cfc4eb4c LP |
2069 | f = socket_result_from_string(value); |
2070 | if (f < 0) | |
f2341e0a | 2071 | log_unit_debug(u, "Failed to parse result value: %s", value); |
cfc4eb4c LP |
2072 | else if (f != SOCKET_SUCCESS) |
2073 | s->result = f; | |
a16e1123 LP |
2074 | |
2075 | } else if (streq(key, "n-accepted")) { | |
2076 | unsigned k; | |
2077 | ||
e364ad06 | 2078 | if (safe_atou(value, &k) < 0) |
f2341e0a | 2079 | log_unit_debug(u, "Failed to parse n-accepted value: %s", value); |
a16e1123 LP |
2080 | else |
2081 | s->n_accepted += k; | |
2082 | } else if (streq(key, "control-pid")) { | |
5925dd3c | 2083 | pid_t pid; |
a16e1123 | 2084 | |
e364ad06 | 2085 | if (parse_pid(value, &pid) < 0) |
f2341e0a | 2086 | log_unit_debug(u, "Failed to parse control-pid value: %s", value); |
a16e1123 | 2087 | else |
5925dd3c | 2088 | s->control_pid = pid; |
a16e1123 LP |
2089 | } else if (streq(key, "control-command")) { |
2090 | SocketExecCommand id; | |
2091 | ||
66870f90 ZJS |
2092 | id = socket_exec_command_from_string(value); |
2093 | if (id < 0) | |
f2341e0a | 2094 | log_unit_debug(u, "Failed to parse exec-command value: %s", value); |
a16e1123 LP |
2095 | else { |
2096 | s->control_command_id = id; | |
2097 | s->control_command = s->exec_command[id]; | |
2098 | } | |
2099 | } else if (streq(key, "fifo")) { | |
2100 | int fd, skip = 0; | |
2101 | SocketPort *p; | |
2102 | ||
2103 | if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2104 | log_unit_debug(u, "Failed to parse fifo value: %s", value); |
a16e1123 LP |
2105 | else { |
2106 | ||
2107 | LIST_FOREACH(port, p, s->ports) | |
b0a3f2bc | 2108 | if (p->type == SOCKET_FIFO && |
c78e47a6 | 2109 | path_equal_or_files_same(p->path, value+skip)) |
b0a3f2bc LP |
2110 | break; |
2111 | ||
2112 | if (p) { | |
03e334a1 | 2113 | safe_close(p->fd); |
b0a3f2bc LP |
2114 | p->fd = fdset_remove(fds, fd); |
2115 | } | |
2116 | } | |
2117 | ||
2118 | } else if (streq(key, "special")) { | |
2119 | int fd, skip = 0; | |
2120 | SocketPort *p; | |
2121 | ||
2122 | if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2123 | log_unit_debug(u, "Failed to parse special value: %s", value); |
b0a3f2bc LP |
2124 | else { |
2125 | ||
2126 | LIST_FOREACH(port, p, s->ports) | |
2127 | if (p->type == SOCKET_SPECIAL && | |
c78e47a6 | 2128 | path_equal_or_files_same(p->path, value+skip)) |
a16e1123 LP |
2129 | break; |
2130 | ||
2131 | if (p) { | |
03e334a1 | 2132 | safe_close(p->fd); |
a16e1123 LP |
2133 | p->fd = fdset_remove(fds, fd); |
2134 | } | |
2135 | } | |
2136 | ||
ee092817 LP |
2137 | } else if (streq(key, "mqueue")) { |
2138 | int fd, skip = 0; | |
2139 | SocketPort *p; | |
2140 | ||
2141 | if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2142 | log_unit_debug(u, "Failed to parse mqueue value: %s", value); |
ee092817 LP |
2143 | else { |
2144 | ||
2145 | LIST_FOREACH(port, p, s->ports) | |
2146 | if (p->type == SOCKET_MQUEUE && | |
c78e47a6 | 2147 | streq(p->path, value+skip)) |
ee092817 LP |
2148 | break; |
2149 | ||
2150 | if (p) { | |
03e334a1 | 2151 | safe_close(p->fd); |
ee092817 LP |
2152 | p->fd = fdset_remove(fds, fd); |
2153 | } | |
2154 | } | |
2155 | ||
a16e1123 | 2156 | } else if (streq(key, "socket")) { |
27ca8d7a | 2157 | int fd, type, skip = 0; |
a16e1123 LP |
2158 | SocketPort *p; |
2159 | ||
27ca8d7a | 2160 | if (sscanf(value, "%i %i %n", &fd, &type, &skip) < 2 || fd < 0 || type < 0 || !fdset_contains(fds, fd)) |
f2341e0a | 2161 | log_unit_debug(u, "Failed to parse socket value: %s", value); |
a16e1123 LP |
2162 | else { |
2163 | ||
2164 | LIST_FOREACH(port, p, s->ports) | |
27ca8d7a | 2165 | if (socket_address_is(&p->address, value+skip, type)) |
a16e1123 LP |
2166 | break; |
2167 | ||
2168 | if (p) { | |
03e334a1 | 2169 | safe_close(p->fd); |
a16e1123 LP |
2170 | p->fd = fdset_remove(fds, fd); |
2171 | } | |
2172 | } | |
2173 | ||
7a22745a LP |
2174 | } else if (streq(key, "netlink")) { |
2175 | int fd, skip = 0; | |
2176 | SocketPort *p; | |
2177 | ||
2178 | if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) | |
f2341e0a | 2179 | log_unit_debug(u, "Failed to parse socket value: %s", value); |
7a22745a LP |
2180 | else { |
2181 | ||
2182 | LIST_FOREACH(port, p, s->ports) | |
2183 | if (socket_address_is_netlink(&p->address, value+skip)) | |
2184 | break; | |
2185 | ||
2186 | if (p) { | |
03e334a1 | 2187 | safe_close(p->fd); |
7a22745a LP |
2188 | p->fd = fdset_remove(fds, fd); |
2189 | } | |
2190 | } | |
a16e1123 | 2191 | } else |
f2341e0a | 2192 | log_unit_debug(UNIT(s), "Unknown serialization key: %s", key); |
a16e1123 LP |
2193 | |
2194 | return 0; | |
2195 | } | |
2196 | ||
01e10de3 LP |
2197 | static int socket_distribute_fds(Unit *u, FDSet *fds) { |
2198 | Socket *s = SOCKET(u); | |
2199 | SocketPort *p; | |
2200 | ||
2201 | assert(u); | |
2202 | ||
2203 | LIST_FOREACH(port, p, s->ports) { | |
2204 | Iterator i; | |
2205 | int fd; | |
2206 | ||
2207 | if (p->type != SOCKET_SOCKET) | |
2208 | continue; | |
2209 | ||
2210 | if (p->fd >= 0) | |
2211 | continue; | |
2212 | ||
2213 | FDSET_FOREACH(fd, fds, i) { | |
2214 | if (socket_address_matches_fd(&p->address, fd)) { | |
2215 | p->fd = fdset_remove(fds, fd); | |
2216 | s->deserialized_state = SOCKET_LISTENING; | |
2217 | break; | |
2218 | } | |
2219 | } | |
2220 | } | |
2221 | ||
2222 | return 0; | |
2223 | } | |
2224 | ||
44a6b1b6 | 2225 | _pure_ static UnitActiveState socket_active_state(Unit *u) { |
87f0e418 | 2226 | assert(u); |
5cb5a6ff | 2227 | |
acbb0225 | 2228 | return state_translation_table[SOCKET(u)->state]; |
5cb5a6ff LP |
2229 | } |
2230 | ||
44a6b1b6 | 2231 | _pure_ static const char *socket_sub_state_to_string(Unit *u) { |
10a94420 LP |
2232 | assert(u); |
2233 | ||
a16e1123 | 2234 | return socket_state_to_string(SOCKET(u)->state); |
10a94420 LP |
2235 | } |
2236 | ||
67419600 OS |
2237 | const char* socket_port_type_to_string(SocketPort *p) { |
2238 | ||
2239 | assert(p); | |
2240 | ||
2241 | switch (p->type) { | |
718db961 LP |
2242 | |
2243 | case SOCKET_SOCKET: | |
2244 | ||
2245 | switch (p->address.type) { | |
2246 | ||
2247 | case SOCK_STREAM: | |
2248 | return "Stream"; | |
2249 | ||
2250 | case SOCK_DGRAM: | |
2251 | return "Datagram"; | |
2252 | ||
2253 | case SOCK_SEQPACKET: | |
2254 | return "SequentialPacket"; | |
2255 | ||
2256 | case SOCK_RAW: | |
2257 | if (socket_address_family(&p->address) == AF_NETLINK) | |
2258 | return "Netlink"; | |
2259 | ||
2260 | default: | |
2261 | return NULL; | |
2262 | } | |
2263 | ||
2264 | case SOCKET_SPECIAL: | |
2265 | return "Special"; | |
2266 | ||
2267 | case SOCKET_MQUEUE: | |
2268 | return "MessageQueue"; | |
2269 | ||
2270 | case SOCKET_FIFO: | |
2271 | return "FIFO"; | |
2272 | ||
2273 | default: | |
2274 | return NULL; | |
67419600 OS |
2275 | } |
2276 | } | |
2277 | ||
44a6b1b6 | 2278 | _pure_ static bool socket_check_gc(Unit *u) { |
6cf6bbc2 LP |
2279 | Socket *s = SOCKET(u); |
2280 | ||
2281 | assert(u); | |
2282 | ||
2283 | return s->n_connections > 0; | |
2284 | } | |
2285 | ||
718db961 LP |
2286 | static int socket_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
2287 | SocketPort *p = userdata; | |
4f2d528d | 2288 | int cfd = -1; |
9152c765 | 2289 | |
718db961 | 2290 | assert(p); |
8d567588 | 2291 | assert(fd >= 0); |
9152c765 | 2292 | |
718db961 LP |
2293 | if (p->socket->state != SOCKET_LISTENING) |
2294 | return 0; | |
871d7de4 | 2295 | |
f2341e0a | 2296 | log_unit_debug(UNIT(p->socket), "Incoming traffic"); |
9152c765 | 2297 | |
718db961 | 2298 | if (revents != EPOLLIN) { |
641e01dc | 2299 | |
718db961 | 2300 | if (revents & EPOLLHUP) |
f2341e0a | 2301 | log_unit_error(UNIT(p->socket), "Got POLLHUP on a listening socket. The service probably invoked shutdown() on it, and should better not do that."); |
641e01dc | 2302 | else |
f2341e0a | 2303 | log_unit_error(UNIT(p->socket), "Got unexpected poll event (0x%x) on socket.", revents); |
641e01dc | 2304 | |
8d567588 | 2305 | goto fail; |
4f2d528d LP |
2306 | } |
2307 | ||
718db961 LP |
2308 | if (p->socket->accept && |
2309 | p->type == SOCKET_SOCKET && | |
2310 | socket_address_can_accept(&p->address)) { | |
2311 | ||
4f2d528d LP |
2312 | for (;;) { |
2313 | ||
b14eda96 LP |
2314 | cfd = accept4(fd, NULL, NULL, SOCK_NONBLOCK); |
2315 | if (cfd < 0) { | |
4f2d528d LP |
2316 | |
2317 | if (errno == EINTR) | |
2318 | continue; | |
2319 | ||
f2341e0a | 2320 | log_unit_error_errno(UNIT(p->socket), errno, "Failed to accept socket: %m"); |
8d567588 | 2321 | goto fail; |
4f2d528d LP |
2322 | } |
2323 | ||
2324 | break; | |
2325 | } | |
4fd5948e | 2326 | |
718db961 | 2327 | socket_apply_socket_options(p->socket, cfd); |
4f2d528d | 2328 | } |
9152c765 | 2329 | |
718db961 LP |
2330 | socket_enter_running(p->socket, cfd); |
2331 | return 0; | |
8d567588 LP |
2332 | |
2333 | fail: | |
718db961 LP |
2334 | socket_enter_stop_pre(p->socket, SOCKET_FAILURE_RESOURCES); |
2335 | return 0; | |
9152c765 LP |
2336 | } |
2337 | ||
87f0e418 LP |
2338 | static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2339 | Socket *s = SOCKET(u); | |
cfc4eb4c | 2340 | SocketResult f; |
5cb5a6ff LP |
2341 | |
2342 | assert(s); | |
034c6ed7 | 2343 | assert(pid >= 0); |
5cb5a6ff | 2344 | |
8c47c732 LP |
2345 | if (pid != s->control_pid) |
2346 | return; | |
542563ba | 2347 | |
034c6ed7 LP |
2348 | s->control_pid = 0; |
2349 | ||
96342de6 | 2350 | if (is_clean_exit(code, status, NULL)) |
cfc4eb4c LP |
2351 | f = SOCKET_SUCCESS; |
2352 | else if (code == CLD_EXITED) | |
2353 | f = SOCKET_FAILURE_EXIT_CODE; | |
2354 | else if (code == CLD_KILLED) | |
2355 | f = SOCKET_FAILURE_SIGNAL; | |
2356 | else if (code == CLD_DUMPED) | |
2357 | f = SOCKET_FAILURE_CORE_DUMP; | |
2358 | else | |
a4152e3f | 2359 | assert_not_reached("Unknown sigchld code"); |
8c47c732 | 2360 | |
b708e7ce | 2361 | if (s->control_command) { |
6ea832a2 | 2362 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 2363 | |
b708e7ce | 2364 | if (s->control_command->ignore) |
cfc4eb4c | 2365 | f = SOCKET_SUCCESS; |
b708e7ce LP |
2366 | } |
2367 | ||
f2341e0a LP |
2368 | log_unit_full(u, f == SOCKET_SUCCESS ? LOG_DEBUG : LOG_NOTICE, 0, |
2369 | "Control process exited, code=%s status=%i", | |
2370 | sigchld_code_to_string(code), status); | |
034c6ed7 | 2371 | |
cfc4eb4c LP |
2372 | if (f != SOCKET_SUCCESS) |
2373 | s->result = f; | |
2374 | ||
2375 | if (s->control_command && | |
2376 | s->control_command->command_next && | |
2377 | f == SOCKET_SUCCESS) { | |
2378 | ||
f2341e0a | 2379 | log_unit_debug(u, "Running next command for state %s", socket_state_to_string(s->state)); |
cfc4eb4c | 2380 | socket_run_next(s); |
acbb0225 | 2381 | } else { |
a16e1123 LP |
2382 | s->control_command = NULL; |
2383 | s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID; | |
2384 | ||
034c6ed7 LP |
2385 | /* No further commands for this step, so let's figure |
2386 | * out what to do next */ | |
5cb5a6ff | 2387 | |
f2341e0a | 2388 | log_unit_debug(u, "Got final SIGCHLD for state %s", socket_state_to_string(s->state)); |
acbb0225 | 2389 | |
034c6ed7 LP |
2390 | switch (s->state) { |
2391 | ||
2392 | case SOCKET_START_PRE: | |
cfc4eb4c | 2393 | if (f == SOCKET_SUCCESS) |
3900e5fd | 2394 | socket_enter_start_chown(s); |
034c6ed7 | 2395 | else |
cfc4eb4c | 2396 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, f); |
034c6ed7 LP |
2397 | break; |
2398 | ||
3900e5fd LP |
2399 | case SOCKET_START_CHOWN: |
2400 | if (f == SOCKET_SUCCESS) | |
2401 | socket_enter_start_post(s); | |
2402 | else | |
2403 | socket_enter_stop_pre(s, f); | |
2404 | break; | |
2405 | ||
034c6ed7 | 2406 | case SOCKET_START_POST: |
cfc4eb4c | 2407 | if (f == SOCKET_SUCCESS) |
e9af15c3 | 2408 | socket_enter_listening(s); |
034c6ed7 | 2409 | else |
cfc4eb4c | 2410 | socket_enter_stop_pre(s, f); |
034c6ed7 LP |
2411 | break; |
2412 | ||
2413 | case SOCKET_STOP_PRE: | |
2414 | case SOCKET_STOP_PRE_SIGTERM: | |
2415 | case SOCKET_STOP_PRE_SIGKILL: | |
cfc4eb4c | 2416 | socket_enter_stop_post(s, f); |
034c6ed7 LP |
2417 | break; |
2418 | ||
2419 | case SOCKET_STOP_POST: | |
80876c20 LP |
2420 | case SOCKET_FINAL_SIGTERM: |
2421 | case SOCKET_FINAL_SIGKILL: | |
cfc4eb4c | 2422 | socket_enter_dead(s, f); |
034c6ed7 LP |
2423 | break; |
2424 | ||
2425 | default: | |
2426 | assert_not_reached("Uh, control process died at wrong time."); | |
2427 | } | |
2428 | } | |
c4e2ceae LP |
2429 | |
2430 | /* Notify clients about changed exit status */ | |
2431 | unit_add_to_dbus_queue(u); | |
034c6ed7 | 2432 | } |
5cb5a6ff | 2433 | |
718db961 LP |
2434 | static int socket_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
2435 | Socket *s = SOCKET(userdata); | |
5cb5a6ff | 2436 | |
034c6ed7 | 2437 | assert(s); |
718db961 | 2438 | assert(s->timer_event_source == source); |
034c6ed7 LP |
2439 | |
2440 | switch (s->state) { | |
2441 | ||
2442 | case SOCKET_START_PRE: | |
f2341e0a | 2443 | log_unit_warning(UNIT(s), "Starting timed out. Terminating."); |
cfc4eb4c | 2444 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_TIMEOUT); |
da19d5c1 | 2445 | break; |
80876c20 | 2446 | |
3900e5fd | 2447 | case SOCKET_START_CHOWN: |
034c6ed7 | 2448 | case SOCKET_START_POST: |
f2341e0a | 2449 | log_unit_warning(UNIT(s), "Starting timed out. Stopping."); |
cfc4eb4c | 2450 | socket_enter_stop_pre(s, SOCKET_FAILURE_TIMEOUT); |
034c6ed7 LP |
2451 | break; |
2452 | ||
2453 | case SOCKET_STOP_PRE: | |
f2341e0a | 2454 | log_unit_warning(UNIT(s), "Stopping timed out. Terminating."); |
cfc4eb4c | 2455 | socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, SOCKET_FAILURE_TIMEOUT); |
034c6ed7 LP |
2456 | break; |
2457 | ||
2458 | case SOCKET_STOP_PRE_SIGTERM: | |
4819ff03 | 2459 | if (s->kill_context.send_sigkill) { |
f2341e0a | 2460 | log_unit_warning(UNIT(s), "Stopping timed out. Killing."); |
cfc4eb4c | 2461 | socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, SOCKET_FAILURE_TIMEOUT); |
ba035df2 | 2462 | } else { |
f2341e0a | 2463 | log_unit_warning(UNIT(s), "Stopping timed out. Skipping SIGKILL. Ignoring."); |
cfc4eb4c | 2464 | socket_enter_stop_post(s, SOCKET_FAILURE_TIMEOUT); |
ba035df2 | 2465 | } |
034c6ed7 LP |
2466 | break; |
2467 | ||
2468 | case SOCKET_STOP_PRE_SIGKILL: | |
f2341e0a | 2469 | log_unit_warning(UNIT(s), "Processes still around after SIGKILL. Ignoring."); |
cfc4eb4c | 2470 | socket_enter_stop_post(s, SOCKET_FAILURE_TIMEOUT); |
034c6ed7 LP |
2471 | break; |
2472 | ||
2473 | case SOCKET_STOP_POST: | |
f2341e0a | 2474 | log_unit_warning(UNIT(s), "Stopping timed out (2). Terminating."); |
cfc4eb4c | 2475 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_TIMEOUT); |
034c6ed7 LP |
2476 | break; |
2477 | ||
80876c20 | 2478 | case SOCKET_FINAL_SIGTERM: |
4819ff03 | 2479 | if (s->kill_context.send_sigkill) { |
f2341e0a | 2480 | log_unit_warning(UNIT(s), "Stopping timed out (2). Killing."); |
cfc4eb4c | 2481 | socket_enter_signal(s, SOCKET_FINAL_SIGKILL, SOCKET_FAILURE_TIMEOUT); |
ba035df2 | 2482 | } else { |
f2341e0a | 2483 | log_unit_warning(UNIT(s), "Stopping timed out (2). Skipping SIGKILL. Ignoring."); |
cfc4eb4c | 2484 | socket_enter_dead(s, SOCKET_FAILURE_TIMEOUT); |
ba035df2 | 2485 | } |
034c6ed7 LP |
2486 | break; |
2487 | ||
80876c20 | 2488 | case SOCKET_FINAL_SIGKILL: |
f2341e0a | 2489 | log_unit_warning(UNIT(s), "Still around after SIGKILL (2). Entering failed mode."); |
cfc4eb4c | 2490 | socket_enter_dead(s, SOCKET_FAILURE_TIMEOUT); |
034c6ed7 LP |
2491 | break; |
2492 | ||
2493 | default: | |
2494 | assert_not_reached("Timeout at wrong time."); | |
2495 | } | |
718db961 LP |
2496 | |
2497 | return 0; | |
5cb5a6ff LP |
2498 | } |
2499 | ||
44d8db9e LP |
2500 | int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds) { |
2501 | int *rfds; | |
2502 | unsigned rn_fds, k; | |
2503 | SocketPort *p; | |
2504 | ||
2505 | assert(s); | |
2506 | assert(fds); | |
2507 | assert(n_fds); | |
2508 | ||
2509 | /* Called from the service code for requesting our fds */ | |
2510 | ||
2511 | rn_fds = 0; | |
2512 | LIST_FOREACH(port, p, s->ports) | |
2513 | if (p->fd >= 0) | |
2514 | rn_fds++; | |
2515 | ||
de3756ab LP |
2516 | if (rn_fds <= 0) { |
2517 | *fds = NULL; | |
2518 | *n_fds = 0; | |
2519 | return 0; | |
2520 | } | |
2521 | ||
e5403f09 LP |
2522 | rfds = new(int, rn_fds); |
2523 | if (!rfds) | |
44d8db9e LP |
2524 | return -ENOMEM; |
2525 | ||
2526 | k = 0; | |
2527 | LIST_FOREACH(port, p, s->ports) | |
2528 | if (p->fd >= 0) | |
2529 | rfds[k++] = p->fd; | |
2530 | ||
2531 | assert(k == rn_fds); | |
2532 | ||
2533 | *fds = rfds; | |
2534 | *n_fds = rn_fds; | |
2535 | ||
2536 | return 0; | |
2537 | } | |
2538 | ||
e821075a LP |
2539 | static void socket_reset_failed(Unit *u) { |
2540 | Socket *s = SOCKET(u); | |
2541 | ||
2542 | assert(s); | |
2543 | ||
2544 | if (s->state == SOCKET_FAILED) | |
2545 | socket_set_state(s, SOCKET_DEAD); | |
2546 | ||
2547 | s->result = SOCKET_SUCCESS; | |
2548 | } | |
2549 | ||
d137a488 | 2550 | static void socket_notify_service_dead(Socket *s, bool failed_permanent) { |
ceee3d82 LP |
2551 | assert(s); |
2552 | ||
6cf6bbc2 LP |
2553 | /* The service is dead. Dang! |
2554 | * | |
2555 | * This is strictly for one-instance-for-all-connections | |
2556 | * services. */ | |
ceee3d82 LP |
2557 | |
2558 | if (s->state == SOCKET_RUNNING) { | |
f2341e0a | 2559 | log_unit_debug(UNIT(s), "Got notified about service death (failed permanently: %s)", yes_no(failed_permanent)); |
6bda96a0 LP |
2560 | if (failed_permanent) |
2561 | socket_enter_stop_pre(s, SOCKET_FAILURE_SERVICE_FAILED_PERMANENT); | |
c2f34808 MS |
2562 | else |
2563 | socket_enter_listening(s); | |
ceee3d82 LP |
2564 | } |
2565 | } | |
2566 | ||
6cf6bbc2 LP |
2567 | void socket_connection_unref(Socket *s) { |
2568 | assert(s); | |
2569 | ||
2570 | /* The service is dead. Yay! | |
2571 | * | |
35b8ca3a | 2572 | * This is strictly for one-instance-per-connection |
6cf6bbc2 LP |
2573 | * services. */ |
2574 | ||
2575 | assert(s->n_connections > 0); | |
2576 | s->n_connections--; | |
2577 | ||
f2341e0a | 2578 | log_unit_debug(UNIT(s), "One connection closed, %u left.", s->n_connections); |
5632e374 LP |
2579 | } |
2580 | ||
d137a488 UTL |
2581 | static void socket_trigger_notify(Unit *u, Unit *other) { |
2582 | Socket *s = SOCKET(u); | |
e821075a | 2583 | Service *se; |
d137a488 UTL |
2584 | |
2585 | assert(u); | |
2586 | assert(other); | |
2587 | ||
2588 | /* Don't propagate state changes from the service if we are | |
2589 | already down or accepting connections */ | |
2590 | if ((s->state != SOCKET_RUNNING && | |
2591 | s->state != SOCKET_LISTENING) || | |
2592 | s->accept) | |
2593 | return; | |
2594 | ||
2595 | if (other->load_state != UNIT_LOADED || | |
2596 | other->type != UNIT_SERVICE) | |
2597 | return; | |
2598 | ||
e821075a LP |
2599 | se = SERVICE(other); |
2600 | ||
d137a488 UTL |
2601 | if (se->state == SERVICE_FAILED) |
2602 | socket_notify_service_dead(s, se->result == SERVICE_FAILURE_START_LIMIT); | |
2603 | ||
2604 | if (se->state == SERVICE_DEAD || | |
d137a488 UTL |
2605 | se->state == SERVICE_FINAL_SIGTERM || |
2606 | se->state == SERVICE_FINAL_SIGKILL || | |
2607 | se->state == SERVICE_AUTO_RESTART) | |
2608 | socket_notify_service_dead(s, false); | |
2609 | ||
2610 | if (se->state == SERVICE_RUNNING) | |
2611 | socket_set_state(s, SOCKET_RUNNING); | |
2612 | } | |
2613 | ||
718db961 | 2614 | static int socket_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
814cc562 | 2615 | return unit_kill_common(u, who, signo, -1, SOCKET(u)->control_pid, error); |
8a0867d6 LP |
2616 | } |
2617 | ||
68db7a3b ZJS |
2618 | static int socket_get_timeout(Unit *u, uint64_t *timeout) { |
2619 | Socket *s = SOCKET(u); | |
2620 | int r; | |
2621 | ||
2622 | if (!s->timer_event_source) | |
2623 | return 0; | |
2624 | ||
2625 | r = sd_event_source_get_time(s->timer_event_source, timeout); | |
2626 | if (r < 0) | |
2627 | return r; | |
2628 | ||
2629 | return 1; | |
2630 | } | |
2631 | ||
a16e1123 LP |
2632 | static const char* const socket_state_table[_SOCKET_STATE_MAX] = { |
2633 | [SOCKET_DEAD] = "dead", | |
2634 | [SOCKET_START_PRE] = "start-pre", | |
3900e5fd | 2635 | [SOCKET_START_CHOWN] = "start-chown", |
a16e1123 LP |
2636 | [SOCKET_START_POST] = "start-post", |
2637 | [SOCKET_LISTENING] = "listening", | |
2638 | [SOCKET_RUNNING] = "running", | |
2639 | [SOCKET_STOP_PRE] = "stop-pre", | |
2640 | [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm", | |
2641 | [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill", | |
2642 | [SOCKET_STOP_POST] = "stop-post", | |
2643 | [SOCKET_FINAL_SIGTERM] = "final-sigterm", | |
2644 | [SOCKET_FINAL_SIGKILL] = "final-sigkill", | |
fdf20a31 | 2645 | [SOCKET_FAILED] = "failed" |
a16e1123 LP |
2646 | }; |
2647 | ||
2648 | DEFINE_STRING_TABLE_LOOKUP(socket_state, SocketState); | |
2649 | ||
2650 | static const char* const socket_exec_command_table[_SOCKET_EXEC_COMMAND_MAX] = { | |
2651 | [SOCKET_EXEC_START_PRE] = "StartPre", | |
3900e5fd | 2652 | [SOCKET_EXEC_START_CHOWN] = "StartChown", |
a16e1123 LP |
2653 | [SOCKET_EXEC_START_POST] = "StartPost", |
2654 | [SOCKET_EXEC_STOP_PRE] = "StopPre", | |
2655 | [SOCKET_EXEC_STOP_POST] = "StopPost" | |
2656 | }; | |
2657 | ||
2658 | DEFINE_STRING_TABLE_LOOKUP(socket_exec_command, SocketExecCommand); | |
2659 | ||
cfc4eb4c LP |
2660 | static const char* const socket_result_table[_SOCKET_RESULT_MAX] = { |
2661 | [SOCKET_SUCCESS] = "success", | |
2662 | [SOCKET_FAILURE_RESOURCES] = "resources", | |
2663 | [SOCKET_FAILURE_TIMEOUT] = "timeout", | |
2664 | [SOCKET_FAILURE_EXIT_CODE] = "exit-code", | |
2665 | [SOCKET_FAILURE_SIGNAL] = "signal", | |
c2f34808 | 2666 | [SOCKET_FAILURE_CORE_DUMP] = "core-dump", |
6bda96a0 | 2667 | [SOCKET_FAILURE_SERVICE_FAILED_PERMANENT] = "service-failed-permanent" |
cfc4eb4c LP |
2668 | }; |
2669 | ||
2670 | DEFINE_STRING_TABLE_LOOKUP(socket_result, SocketResult); | |
2671 | ||
87f0e418 | 2672 | const UnitVTable socket_vtable = { |
7d17cfbc | 2673 | .object_size = sizeof(Socket), |
718db961 LP |
2674 | .exec_context_offset = offsetof(Socket, exec_context), |
2675 | .cgroup_context_offset = offsetof(Socket, cgroup_context), | |
2676 | .kill_context_offset = offsetof(Socket, kill_context), | |
613b411c | 2677 | .exec_runtime_offset = offsetof(Socket, exec_runtime), |
3ef63c31 | 2678 | |
f975e971 LP |
2679 | .sections = |
2680 | "Unit\0" | |
2681 | "Socket\0" | |
2682 | "Install\0", | |
4ad49000 | 2683 | .private_section = "Socket", |
71645aca | 2684 | |
034c6ed7 LP |
2685 | .init = socket_init, |
2686 | .done = socket_done, | |
a16e1123 LP |
2687 | .load = socket_load, |
2688 | ||
2689 | .coldplug = socket_coldplug, | |
034c6ed7 | 2690 | |
5cb5a6ff LP |
2691 | .dump = socket_dump, |
2692 | ||
542563ba LP |
2693 | .start = socket_start, |
2694 | .stop = socket_stop, | |
5cb5a6ff | 2695 | |
718db961 LP |
2696 | .kill = socket_kill, |
2697 | ||
68db7a3b ZJS |
2698 | .get_timeout = socket_get_timeout, |
2699 | ||
a16e1123 LP |
2700 | .serialize = socket_serialize, |
2701 | .deserialize_item = socket_deserialize_item, | |
01e10de3 | 2702 | .distribute_fds = socket_distribute_fds, |
a16e1123 | 2703 | |
5cb5a6ff | 2704 | .active_state = socket_active_state, |
10a94420 | 2705 | .sub_state_to_string = socket_sub_state_to_string, |
5cb5a6ff | 2706 | |
6cf6bbc2 LP |
2707 | .check_gc = socket_check_gc, |
2708 | ||
034c6ed7 | 2709 | .sigchld_event = socket_sigchld_event, |
4139c1b2 | 2710 | |
d137a488 UTL |
2711 | .trigger_notify = socket_trigger_notify, |
2712 | ||
fdf20a31 | 2713 | .reset_failed = socket_reset_failed, |
5632e374 | 2714 | |
c4e2ceae | 2715 | .bus_interface = "org.freedesktop.systemd1.Socket", |
718db961 | 2716 | .bus_vtable = bus_socket_vtable, |
74c964d3 LP |
2717 | .bus_set_property = bus_socket_set_property, |
2718 | .bus_commit_properties = bus_socket_commit_properties, | |
c6918296 MS |
2719 | |
2720 | .status_message_formats = { | |
2721 | /*.starting_stopping = { | |
2722 | [0] = "Starting socket %s...", | |
2723 | [1] = "Stopping socket %s...", | |
2724 | },*/ | |
2725 | .finished_start_job = { | |
2726 | [JOB_DONE] = "Listening on %s.", | |
2727 | [JOB_FAILED] = "Failed to listen on %s.", | |
2728 | [JOB_DEPENDENCY] = "Dependency failed for %s.", | |
2729 | [JOB_TIMEOUT] = "Timed out starting %s.", | |
2730 | }, | |
2731 | .finished_stop_job = { | |
2732 | [JOB_DONE] = "Closed %s.", | |
2733 | [JOB_FAILED] = "Failed stopping %s.", | |
2734 | [JOB_TIMEOUT] = "Timed out stopping %s.", | |
2735 | }, | |
2736 | }, | |
5cb5a6ff | 2737 | }; |