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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/types.h> |
23 | #include <sys/stat.h> | |
24 | #include <unistd.h> | |
25 | #include <errno.h> | |
26 | #include <fcntl.h> | |
f94ea366 | 27 | #include <sys/epoll.h> |
034c6ed7 | 28 | #include <signal.h> |
4f2d528d | 29 | #include <arpa/inet.h> |
718db961 | 30 | #include <netinet/tcp.h> |
916abb21 | 31 | #include <mqueue.h> |
d2edfae0 | 32 | #include <sys/xattr.h> |
83c60c9f | 33 | |
718db961 | 34 | #include "sd-event.h" |
83c60c9f | 35 | #include "log.h" |
23a177ef LP |
36 | #include "load-dropin.h" |
37 | #include "load-fragment.h" | |
9e2f7c11 | 38 | #include "strv.h" |
49e942b2 | 39 | #include "mkdir.h" |
9eb977db | 40 | #include "path-util.h" |
4f2d528d | 41 | #include "unit-name.h" |
41f9172f | 42 | #include "unit-printf.h" |
4fd5948e | 43 | #include "missing.h" |
a40eb732 | 44 | #include "special.h" |
e51bc1a2 | 45 | #include "label.h" |
9a57c629 | 46 | #include "exit-status.h" |
f6a6225e | 47 | #include "def.h" |
5a045dad | 48 | #include "smack-util.h" |
718db961 LP |
49 | #include "bus-util.h" |
50 | #include "bus-error.h" | |
d7b8eec7 | 51 | #include "selinux-util.h" |
e821075a LP |
52 | #include "dbus-socket.h" |
53 | #include "unit.h" | |
54 | #include "socket.h" | |
83c60c9f | 55 | |
acbb0225 | 56 | static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = { |
87f0e418 LP |
57 | [SOCKET_DEAD] = UNIT_INACTIVE, |
58 | [SOCKET_START_PRE] = UNIT_ACTIVATING, | |
3900e5fd | 59 | [SOCKET_START_CHOWN] = UNIT_ACTIVATING, |
87f0e418 LP |
60 | [SOCKET_START_POST] = UNIT_ACTIVATING, |
61 | [SOCKET_LISTENING] = UNIT_ACTIVE, | |
62 | [SOCKET_RUNNING] = UNIT_ACTIVE, | |
63 | [SOCKET_STOP_PRE] = UNIT_DEACTIVATING, | |
64 | [SOCKET_STOP_PRE_SIGTERM] = UNIT_DEACTIVATING, | |
65 | [SOCKET_STOP_PRE_SIGKILL] = UNIT_DEACTIVATING, | |
66 | [SOCKET_STOP_POST] = UNIT_DEACTIVATING, | |
80876c20 LP |
67 | [SOCKET_FINAL_SIGTERM] = UNIT_DEACTIVATING, |
68 | [SOCKET_FINAL_SIGKILL] = UNIT_DEACTIVATING, | |
fdf20a31 | 69 | [SOCKET_FAILED] = UNIT_FAILED |
83c60c9f | 70 | }; |
5cb5a6ff | 71 | |
718db961 LP |
72 | static int socket_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata); |
73 | static int socket_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata); | |
74 | ||
a16e1123 LP |
75 | static void socket_init(Unit *u) { |
76 | Socket *s = SOCKET(u); | |
77 | ||
78 | assert(u); | |
ac155bb8 | 79 | assert(u->load_state == UNIT_STUB); |
a16e1123 | 80 | |
a16e1123 | 81 | s->backlog = SOMAXCONN; |
1f19a534 | 82 | s->timeout_usec = u->manager->default_timeout_start_usec; |
a16e1123 | 83 | s->directory_mode = 0755; |
9131f660 | 84 | s->socket_mode = 0666; |
a16e1123 | 85 | |
6cf6bbc2 LP |
86 | s->max_connections = 64; |
87 | ||
4fd5948e | 88 | s->priority = -1; |
4fd5948e LP |
89 | s->ip_tos = -1; |
90 | s->ip_ttl = -1; | |
4fd5948e | 91 | s->mark = -1; |
4fd5948e | 92 | |
ac155bb8 MS |
93 | s->exec_context.std_output = u->manager->default_std_output; |
94 | s->exec_context.std_error = u->manager->default_std_error; | |
085afe36 | 95 | |
a16e1123 LP |
96 | s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID; |
97 | } | |
acbb0225 | 98 | |
5e94833f LP |
99 | static void socket_unwatch_control_pid(Socket *s) { |
100 | assert(s); | |
101 | ||
102 | if (s->control_pid <= 0) | |
103 | return; | |
104 | ||
105 | unit_unwatch_pid(UNIT(s), s->control_pid); | |
106 | s->control_pid = 0; | |
107 | } | |
108 | ||
74051b9b | 109 | void socket_free_ports(Socket *s) { |
034c6ed7 LP |
110 | SocketPort *p; |
111 | ||
112 | assert(s); | |
113 | ||
114 | while ((p = s->ports)) { | |
71fda00f | 115 | LIST_REMOVE(port, s->ports, p); |
034c6ed7 | 116 | |
718db961 LP |
117 | sd_event_source_unref(p->event_source); |
118 | ||
03e334a1 | 119 | safe_close(p->fd); |
034c6ed7 LP |
120 | free(p->path); |
121 | free(p); | |
122 | } | |
74051b9b LP |
123 | } |
124 | ||
125 | static void socket_done(Unit *u) { | |
126 | Socket *s = SOCKET(u); | |
127 | ||
128 | assert(s); | |
129 | ||
130 | socket_free_ports(s); | |
034c6ed7 | 131 | |
613b411c | 132 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); |
e537352b | 133 | exec_command_free_array(s->exec_command, _SOCKET_EXEC_COMMAND_MAX); |
034c6ed7 LP |
134 | s->control_command = NULL; |
135 | ||
5e94833f | 136 | socket_unwatch_control_pid(s); |
034c6ed7 | 137 | |
57020a3a | 138 | unit_ref_unset(&s->service); |
034c6ed7 | 139 | |
cebf8b20 TT |
140 | free(s->tcp_congestion); |
141 | s->tcp_congestion = NULL; | |
142 | ||
acbb0225 | 143 | free(s->bind_to_device); |
e537352b | 144 | s->bind_to_device = NULL; |
acbb0225 | 145 | |
0eb59ccf AK |
146 | free(s->smack); |
147 | free(s->smack_ip_in); | |
148 | free(s->smack_ip_out); | |
149 | ||
811ba7a0 LP |
150 | strv_free(s->symlinks); |
151 | ||
3900e5fd LP |
152 | free(s->user); |
153 | free(s->group); | |
154 | ||
718db961 LP |
155 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
156 | } | |
157 | ||
158 | static int socket_arm_timer(Socket *s) { | |
159 | int r; | |
160 | ||
161 | assert(s); | |
162 | ||
163 | if (s->timeout_usec <= 0) { | |
164 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
165 | return 0; | |
166 | } | |
167 | ||
168 | if (s->timer_event_source) { | |
169 | r = sd_event_source_set_time(s->timer_event_source, now(CLOCK_MONOTONIC) + s->timeout_usec); | |
170 | if (r < 0) | |
171 | return r; | |
172 | ||
173 | return sd_event_source_set_enabled(s->timer_event_source, SD_EVENT_ONESHOT); | |
174 | } | |
175 | ||
6a0f1f6d LP |
176 | return sd_event_add_time( |
177 | UNIT(s)->manager->event, | |
178 | &s->timer_event_source, | |
179 | CLOCK_MONOTONIC, | |
180 | now(CLOCK_MONOTONIC) + s->timeout_usec, 0, | |
181 | socket_dispatch_timer, s); | |
5cb5a6ff LP |
182 | } |
183 | ||
8b835fcc ZJS |
184 | int socket_instantiate_service(Socket *s) { |
185 | _cleanup_free_ char *prefix = NULL, *name = NULL; | |
b15bdda8 LP |
186 | int r; |
187 | Unit *u; | |
188 | ||
189 | assert(s); | |
190 | ||
191 | /* This fills in s->service if it isn't filled in yet. For | |
192 | * Accept=yes sockets we create the next connection service | |
193 | * here. For Accept=no this is mostly a NOP since the service | |
194 | * is figured out at load time anyway. */ | |
195 | ||
8b835fcc | 196 | if (UNIT_DEREF(s->service) || !s->accept) |
b15bdda8 LP |
197 | return 0; |
198 | ||
315db1a8 ZJS |
199 | prefix = unit_name_to_prefix(UNIT(s)->id); |
200 | if (!prefix) | |
b15bdda8 LP |
201 | return -ENOMEM; |
202 | ||
315db1a8 | 203 | if (asprintf(&name, "%s@%u.service", prefix, s->n_accepted) < 0) |
b15bdda8 LP |
204 | return -ENOMEM; |
205 | ||
1124fe6f | 206 | r = manager_load_unit(UNIT(s)->manager, name, NULL, NULL, &u); |
b15bdda8 LP |
207 | if (r < 0) |
208 | return r; | |
209 | ||
ac155bb8 | 210 | u->no_gc = true; |
57020a3a LP |
211 | unit_ref_set(&s->service, u); |
212 | ||
213 | return unit_add_two_dependencies(UNIT(s), UNIT_BEFORE, UNIT_TRIGGERS, u, false); | |
b15bdda8 LP |
214 | } |
215 | ||
4f2d528d LP |
216 | static bool have_non_accept_socket(Socket *s) { |
217 | SocketPort *p; | |
218 | ||
219 | assert(s); | |
220 | ||
221 | if (!s->accept) | |
222 | return true; | |
223 | ||
dd5ad9d4 LP |
224 | LIST_FOREACH(port, p, s->ports) { |
225 | ||
226 | if (p->type != SOCKET_SOCKET) | |
227 | return true; | |
228 | ||
4f2d528d LP |
229 | if (!socket_address_can_accept(&p->address)) |
230 | return true; | |
dd5ad9d4 | 231 | } |
4f2d528d LP |
232 | |
233 | return false; | |
234 | } | |
235 | ||
a57f7e2c | 236 | static int socket_add_mount_links(Socket *s) { |
6e2ef85b | 237 | SocketPort *p; |
6e2ef85b LP |
238 | int r; |
239 | ||
240 | assert(s); | |
6e2ef85b | 241 | |
a57f7e2c LP |
242 | LIST_FOREACH(port, p, s->ports) { |
243 | const char *path = NULL; | |
6e2ef85b | 244 | |
a57f7e2c LP |
245 | if (p->type == SOCKET_SOCKET) |
246 | path = socket_address_get_path(&p->address); | |
247 | else if (p->type == SOCKET_FIFO || p->type == SOCKET_SPECIAL) | |
248 | path = p->path; | |
6e2ef85b | 249 | |
a57f7e2c LP |
250 | if (!path) |
251 | continue; | |
6e2ef85b | 252 | |
a57f7e2c | 253 | r = unit_require_mounts_for(UNIT(s), path); |
b87705cd | 254 | if (r < 0) |
6e2ef85b | 255 | return r; |
b87705cd | 256 | } |
6e2ef85b LP |
257 | |
258 | return 0; | |
259 | } | |
260 | ||
261 | static int socket_add_device_link(Socket *s) { | |
262 | char *t; | |
6e2ef85b LP |
263 | |
264 | assert(s); | |
265 | ||
7d0c710d | 266 | if (!s->bind_to_device || streq(s->bind_to_device, "lo")) |
6e2ef85b LP |
267 | return 0; |
268 | ||
e821075a LP |
269 | t = strappenda("/sys/subsystem/net/devices/", s->bind_to_device); |
270 | return unit_add_node_link(UNIT(s), t, false); | |
6e2ef85b LP |
271 | } |
272 | ||
a40eb732 LP |
273 | static int socket_add_default_dependencies(Socket *s) { |
274 | int r; | |
275 | assert(s); | |
276 | ||
e3d84721 LP |
277 | r = unit_add_dependency_by_name(UNIT(s), UNIT_BEFORE, SPECIAL_SOCKETS_TARGET, NULL, true); |
278 | if (r < 0) | |
279 | return r; | |
2a77d31d | 280 | |
e3d84721 LP |
281 | if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) { |
282 | r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true); | |
283 | if (r < 0) | |
a40eb732 | 284 | return r; |
2a77d31d | 285 | } |
a40eb732 | 286 | |
ead8e478 | 287 | return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); |
a40eb732 LP |
288 | } |
289 | ||
44a6b1b6 | 290 | _pure_ static bool socket_has_exec(Socket *s) { |
4cfc6dbe LP |
291 | unsigned i; |
292 | assert(s); | |
293 | ||
294 | for (i = 0; i < _SOCKET_EXEC_COMMAND_MAX; i++) | |
295 | if (s->exec_command[i]) | |
296 | return true; | |
297 | ||
298 | return false; | |
299 | } | |
300 | ||
e821075a LP |
301 | static int socket_add_extras(Socket *s) { |
302 | Unit *u = UNIT(s); | |
e537352b | 303 | int r; |
44d8db9e | 304 | |
e821075a | 305 | assert(s); |
57020a3a | 306 | |
e821075a | 307 | if (have_non_accept_socket(s)) { |
23a177ef | 308 | |
e821075a LP |
309 | if (!UNIT_DEREF(s->service)) { |
310 | Unit *x; | |
57020a3a | 311 | |
e821075a | 312 | r = unit_load_related_unit(u, ".service", &x); |
57020a3a | 313 | if (r < 0) |
4f2d528d | 314 | return r; |
e821075a LP |
315 | |
316 | unit_ref_set(&s->service, x); | |
4f2d528d | 317 | } |
44d8db9e | 318 | |
e821075a LP |
319 | r = unit_add_two_dependencies(u, UNIT_BEFORE, UNIT_TRIGGERS, UNIT_DEREF(s->service), true); |
320 | if (r < 0) | |
6e2ef85b | 321 | return r; |
e821075a | 322 | } |
6e2ef85b | 323 | |
e821075a LP |
324 | r = socket_add_mount_links(s); |
325 | if (r < 0) | |
326 | return r; | |
6e2ef85b | 327 | |
e821075a LP |
328 | r = socket_add_device_link(s); |
329 | if (r < 0) | |
330 | return r; | |
331 | ||
598459ce | 332 | r = unit_patch_contexts(u); |
e821075a LP |
333 | if (r < 0) |
334 | return r; | |
335 | ||
336 | if (socket_has_exec(s)) { | |
337 | r = unit_add_exec_dependencies(u, &s->exec_context); | |
338 | if (r < 0) | |
339 | return r; | |
23a177ef | 340 | |
598459ce | 341 | r = unit_add_default_slice(u, &s->cgroup_context); |
a016b922 LP |
342 | if (r < 0) |
343 | return r; | |
e821075a | 344 | } |
a016b922 | 345 | |
e821075a LP |
346 | if (u->default_dependencies) { |
347 | r = socket_add_default_dependencies(s); | |
348 | if (r < 0) | |
349 | return r; | |
350 | } | |
351 | ||
352 | return 0; | |
353 | } | |
354 | ||
811ba7a0 LP |
355 | static const char *socket_find_symlink_target(Socket *s) { |
356 | const char *found = NULL; | |
357 | SocketPort *p; | |
358 | ||
359 | LIST_FOREACH(port, p, s->ports) { | |
360 | const char *f = NULL; | |
361 | ||
362 | switch (p->type) { | |
363 | ||
364 | case SOCKET_FIFO: | |
365 | f = p->path; | |
366 | break; | |
367 | ||
368 | case SOCKET_SOCKET: | |
369 | if (p->address.sockaddr.un.sun_path[0] != 0) | |
370 | f = p->address.sockaddr.un.sun_path; | |
371 | break; | |
372 | ||
373 | default: | |
374 | break; | |
375 | } | |
376 | ||
377 | if (f) { | |
378 | if (found) | |
379 | return NULL; | |
380 | ||
381 | found = f; | |
382 | } | |
383 | } | |
384 | ||
385 | return found; | |
386 | } | |
387 | ||
e821075a LP |
388 | static int socket_verify(Socket *s) { |
389 | assert(s); | |
390 | ||
391 | if (UNIT(s)->load_state != UNIT_LOADED) | |
392 | return 0; | |
393 | ||
394 | if (!s->ports) { | |
79008bdd | 395 | log_unit_error(UNIT(s)->id, "%s lacks Listen setting. Refusing.", UNIT(s)->id); |
e821075a LP |
396 | return -EINVAL; |
397 | } | |
398 | ||
399 | if (s->accept && have_non_accept_socket(s)) { | |
79008bdd | 400 | log_unit_error(UNIT(s)->id, "%s configured for accepting sockets, but sockets are non-accepting. Refusing.", |
e821075a LP |
401 | UNIT(s)->id); |
402 | return -EINVAL; | |
403 | } | |
404 | ||
405 | if (s->accept && s->max_connections <= 0) { | |
79008bdd | 406 | log_unit_error(UNIT(s)->id, "%s's MaxConnection setting too small. Refusing.", UNIT(s)->id); |
e821075a LP |
407 | return -EINVAL; |
408 | } | |
e06c73cc | 409 | |
e821075a | 410 | if (s->accept && UNIT_DEREF(s->service)) { |
79008bdd | 411 | log_unit_error(UNIT(s)->id, "Explicit service configuration for accepting sockets not supported on %s. Refusing.", UNIT(s)->id); |
e821075a LP |
412 | return -EINVAL; |
413 | } | |
414 | ||
415 | if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) { | |
79008bdd | 416 | log_unit_error(UNIT(s)->id, "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id); |
e821075a LP |
417 | return -EINVAL; |
418 | } | |
419 | ||
811ba7a0 | 420 | if (!strv_isempty(s->symlinks) && !socket_find_symlink_target(s)) { |
79008bdd | 421 | log_unit_error(UNIT(s)->id, "%s has symlinks set but none or more than one node in the file system. Refusing.", UNIT(s)->id); |
811ba7a0 LP |
422 | return -EINVAL; |
423 | } | |
424 | ||
e821075a LP |
425 | return 0; |
426 | } | |
427 | ||
428 | static int socket_load(Unit *u) { | |
429 | Socket *s = SOCKET(u); | |
430 | int r; | |
431 | ||
432 | assert(u); | |
433 | assert(u->load_state == UNIT_STUB); | |
434 | ||
435 | r = unit_load_fragment_and_dropin(u); | |
436 | if (r < 0) | |
437 | return r; | |
438 | ||
439 | if (u->load_state == UNIT_LOADED) { | |
440 | /* This is a new unit? Then let's add in some extras */ | |
441 | r = socket_add_extras(s); | |
e06c73cc LP |
442 | if (r < 0) |
443 | return r; | |
23a177ef LP |
444 | } |
445 | ||
4f2d528d | 446 | return socket_verify(s); |
44d8db9e LP |
447 | } |
448 | ||
44a6b1b6 | 449 | _const_ static const char* listen_lookup(int family, int type) { |
7a22745a LP |
450 | |
451 | if (family == AF_NETLINK) | |
452 | return "ListenNetlink"; | |
542563ba LP |
453 | |
454 | if (type == SOCK_STREAM) | |
455 | return "ListenStream"; | |
456 | else if (type == SOCK_DGRAM) | |
457 | return "ListenDatagram"; | |
458 | else if (type == SOCK_SEQPACKET) | |
459 | return "ListenSequentialPacket"; | |
460 | ||
034c6ed7 | 461 | assert_not_reached("Unknown socket type"); |
542563ba LP |
462 | return NULL; |
463 | } | |
464 | ||
87f0e418 | 465 | static void socket_dump(Unit *u, FILE *f, const char *prefix) { |
209e9dcd | 466 | char time_string[FORMAT_TIMESPAN_MAX]; |
5cb5a6ff | 467 | SocketExecCommand c; |
87f0e418 | 468 | Socket *s = SOCKET(u); |
542563ba | 469 | SocketPort *p; |
82ba9f08 | 470 | const char *prefix2; |
5cb5a6ff LP |
471 | |
472 | assert(s); | |
fa068367 | 473 | assert(f); |
5cb5a6ff | 474 | |
4c940960 | 475 | prefix = strempty(prefix); |
e821075a | 476 | prefix2 = strappenda(prefix, "\t"); |
c43d20a0 | 477 | |
5cb5a6ff LP |
478 | fprintf(f, |
479 | "%sSocket State: %s\n" | |
81a5c6d0 | 480 | "%sResult: %s\n" |
542563ba | 481 | "%sBindIPv6Only: %s\n" |
b5a0699f LP |
482 | "%sBacklog: %u\n" |
483 | "%sSocketMode: %04o\n" | |
4fd5948e LP |
484 | "%sDirectoryMode: %04o\n" |
485 | "%sKeepAlive: %s\n" | |
4427c3f4 | 486 | "%sNoDelay: %s\n" |
cebf8b20 | 487 | "%sFreeBind: %s\n" |
6b6d2dee | 488 | "%sTransparent: %s\n" |
ec6370a2 | 489 | "%sBroadcast: %s\n" |
ede3deb4 | 490 | "%sPassCredentials: %s\n" |
54ecda32 | 491 | "%sPassSecurity: %s\n" |
bd1fe7c7 | 492 | "%sTCPCongestion: %s\n" |
16115b0a MS |
493 | "%sRemoveOnStop: %s\n" |
494 | "%sSELinuxContextFromNet: %s\n", | |
a16e1123 | 495 | prefix, socket_state_to_string(s->state), |
81a5c6d0 | 496 | prefix, socket_result_to_string(s->result), |
c0120d99 | 497 | prefix, socket_address_bind_ipv6_only_to_string(s->bind_ipv6_only), |
b5a0699f LP |
498 | prefix, s->backlog, |
499 | prefix, s->socket_mode, | |
4fd5948e LP |
500 | prefix, s->directory_mode, |
501 | prefix, yes_no(s->keep_alive), | |
4427c3f4 | 502 | prefix, yes_no(s->no_delay), |
cebf8b20 | 503 | prefix, yes_no(s->free_bind), |
6b6d2dee | 504 | prefix, yes_no(s->transparent), |
ec6370a2 | 505 | prefix, yes_no(s->broadcast), |
d68af586 | 506 | prefix, yes_no(s->pass_cred), |
54ecda32 | 507 | prefix, yes_no(s->pass_sec), |
bd1fe7c7 | 508 | prefix, strna(s->tcp_congestion), |
16115b0a MS |
509 | prefix, yes_no(s->remove_on_stop), |
510 | prefix, yes_no(s->selinux_context_from_net)); | |
542563ba | 511 | |
70123e68 LP |
512 | if (s->control_pid > 0) |
513 | fprintf(f, | |
de0671ee ZJS |
514 | "%sControl PID: "PID_FMT"\n", |
515 | prefix, s->control_pid); | |
70123e68 | 516 | |
acbb0225 LP |
517 | if (s->bind_to_device) |
518 | fprintf(f, | |
519 | "%sBindToDevice: %s\n", | |
520 | prefix, s->bind_to_device); | |
521 | ||
4f2d528d LP |
522 | if (s->accept) |
523 | fprintf(f, | |
6cf6bbc2 LP |
524 | "%sAccepted: %u\n" |
525 | "%sNConnections: %u\n" | |
526 | "%sMaxConnections: %u\n", | |
527 | prefix, s->n_accepted, | |
528 | prefix, s->n_connections, | |
529 | prefix, s->max_connections); | |
4f2d528d | 530 | |
4fd5948e LP |
531 | if (s->priority >= 0) |
532 | fprintf(f, | |
533 | "%sPriority: %i\n", | |
534 | prefix, s->priority); | |
535 | ||
536 | if (s->receive_buffer > 0) | |
537 | fprintf(f, | |
538 | "%sReceiveBuffer: %zu\n", | |
539 | prefix, s->receive_buffer); | |
540 | ||
541 | if (s->send_buffer > 0) | |
542 | fprintf(f, | |
543 | "%sSendBuffer: %zu\n", | |
544 | prefix, s->send_buffer); | |
545 | ||
546 | if (s->ip_tos >= 0) | |
547 | fprintf(f, | |
548 | "%sIPTOS: %i\n", | |
549 | prefix, s->ip_tos); | |
550 | ||
551 | if (s->ip_ttl >= 0) | |
552 | fprintf(f, | |
553 | "%sIPTTL: %i\n", | |
554 | prefix, s->ip_ttl); | |
555 | ||
556 | if (s->pipe_size > 0) | |
557 | fprintf(f, | |
558 | "%sPipeSize: %zu\n", | |
559 | prefix, s->pipe_size); | |
560 | ||
561 | if (s->mark >= 0) | |
562 | fprintf(f, | |
563 | "%sMark: %i\n", | |
564 | prefix, s->mark); | |
565 | ||
916abb21 LP |
566 | if (s->mq_maxmsg > 0) |
567 | fprintf(f, | |
568 | "%sMessageQueueMaxMessages: %li\n", | |
569 | prefix, s->mq_maxmsg); | |
570 | ||
571 | if (s->mq_msgsize > 0) | |
572 | fprintf(f, | |
573 | "%sMessageQueueMessageSize: %li\n", | |
574 | prefix, s->mq_msgsize); | |
575 | ||
718db961 | 576 | if (s->reuse_port) |
f7db7a69 SL |
577 | fprintf(f, |
578 | "%sReusePort: %s\n", | |
718db961 | 579 | prefix, yes_no(s->reuse_port)); |
f7db7a69 | 580 | |
0eb59ccf AK |
581 | if (s->smack) |
582 | fprintf(f, | |
583 | "%sSmackLabel: %s\n", | |
584 | prefix, s->smack); | |
585 | ||
586 | if (s->smack_ip_in) | |
587 | fprintf(f, | |
588 | "%sSmackLabelIPIn: %s\n", | |
589 | prefix, s->smack_ip_in); | |
590 | ||
591 | if (s->smack_ip_out) | |
592 | fprintf(f, | |
593 | "%sSmackLabelIPOut: %s\n", | |
594 | prefix, s->smack_ip_out); | |
595 | ||
3900e5fd LP |
596 | if (!isempty(s->user) || !isempty(s->group)) |
597 | fprintf(f, | |
598 | "%sOwnerUser: %s\n" | |
599 | "%sOwnerGroup: %s\n", | |
600 | prefix, strna(s->user), | |
601 | prefix, strna(s->group)); | |
602 | ||
3cd761e4 | 603 | if (s->keep_alive_time > 0) |
209e9dcd | 604 | fprintf(f, |
3cd761e4 LP |
605 | "%sKeepAliveTimeSec: %s\n", |
606 | prefix, format_timespan(time_string, FORMAT_TIMESPAN_MAX, s->keep_alive_time, USEC_PER_SEC)); | |
209e9dcd | 607 | |
3cd761e4 | 608 | if (s->keep_alive_interval) |
209e9dcd | 609 | fprintf(f, |
3cd761e4 LP |
610 | "%sKeepAliveIntervalSec: %s\n", |
611 | prefix, format_timespan(time_string, FORMAT_TIMESPAN_MAX, s->keep_alive_interval, USEC_PER_SEC)); | |
209e9dcd | 612 | |
3cd761e4 | 613 | if (s->keep_alive_cnt) |
209e9dcd SS |
614 | fprintf(f, |
615 | "%sKeepAliveProbes: %u\n", | |
616 | prefix, s->keep_alive_cnt); | |
617 | ||
3cd761e4 | 618 | if (s->defer_accept) |
cc567c9b | 619 | fprintf(f, |
3cd761e4 LP |
620 | "%sDeferAcceptSec: %s\n", |
621 | prefix, format_timespan(time_string, FORMAT_TIMESPAN_MAX, s->defer_accept, USEC_PER_SEC)); | |
cc567c9b | 622 | |
034c6ed7 | 623 | LIST_FOREACH(port, p, s->ports) { |
5cb5a6ff | 624 | |
542563ba LP |
625 | if (p->type == SOCKET_SOCKET) { |
626 | const char *t; | |
627 | int r; | |
e364ad06 | 628 | char *k = NULL; |
542563ba LP |
629 | |
630 | if ((r = socket_address_print(&p->address, &k)) < 0) | |
631 | t = strerror(-r); | |
632 | else | |
633 | t = k; | |
634 | ||
7a22745a | 635 | fprintf(f, "%s%s: %s\n", prefix, listen_lookup(socket_address_family(&p->address), p->address.type), t); |
542563ba | 636 | free(k); |
b0a3f2bc LP |
637 | } else if (p->type == SOCKET_SPECIAL) |
638 | fprintf(f, "%sListenSpecial: %s\n", prefix, p->path); | |
916abb21 LP |
639 | else if (p->type == SOCKET_MQUEUE) |
640 | fprintf(f, "%sListenMessageQueue: %s\n", prefix, p->path); | |
b0a3f2bc | 641 | else |
542563ba LP |
642 | fprintf(f, "%sListenFIFO: %s\n", prefix, p->path); |
643 | } | |
5cb5a6ff LP |
644 | |
645 | exec_context_dump(&s->exec_context, f, prefix); | |
4819ff03 | 646 | kill_context_dump(&s->kill_context, f, prefix); |
5cb5a6ff | 647 | |
e537352b | 648 | for (c = 0; c < _SOCKET_EXEC_COMMAND_MAX; c++) { |
c43d20a0 LP |
649 | if (!s->exec_command[c]) |
650 | continue; | |
5cb5a6ff | 651 | |
40d50879 | 652 | fprintf(f, "%s-> %s:\n", |
a16e1123 | 653 | prefix, socket_exec_command_to_string(c)); |
c43d20a0 LP |
654 | |
655 | exec_command_dump_list(s->exec_command[c], f, prefix2); | |
5cb5a6ff LP |
656 | } |
657 | } | |
658 | ||
4f2d528d LP |
659 | static int instance_from_socket(int fd, unsigned nr, char **instance) { |
660 | socklen_t l; | |
661 | char *r; | |
9d16d0c7 | 662 | union sockaddr_union local, remote; |
4f2d528d LP |
663 | |
664 | assert(fd >= 0); | |
665 | assert(instance); | |
666 | ||
667 | l = sizeof(local); | |
668 | if (getsockname(fd, &local.sa, &l) < 0) | |
669 | return -errno; | |
670 | ||
671 | l = sizeof(remote); | |
672 | if (getpeername(fd, &remote.sa, &l) < 0) | |
673 | return -errno; | |
674 | ||
675 | switch (local.sa.sa_family) { | |
676 | ||
677 | case AF_INET: { | |
678 | uint32_t | |
679 | a = ntohl(local.in.sin_addr.s_addr), | |
680 | b = ntohl(remote.in.sin_addr.s_addr); | |
681 | ||
682 | if (asprintf(&r, | |
77b088c2 LP |
683 | "%u-%u.%u.%u.%u:%u-%u.%u.%u.%u:%u", |
684 | nr, | |
4f2d528d LP |
685 | a >> 24, (a >> 16) & 0xFF, (a >> 8) & 0xFF, a & 0xFF, |
686 | ntohs(local.in.sin_port), | |
687 | b >> 24, (b >> 16) & 0xFF, (b >> 8) & 0xFF, b & 0xFF, | |
688 | ntohs(remote.in.sin_port)) < 0) | |
689 | return -ENOMEM; | |
690 | ||
691 | break; | |
692 | } | |
693 | ||
694 | case AF_INET6: { | |
c65a0b14 | 695 | static const unsigned char ipv4_prefix[] = { |
2b061f5a LP |
696 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF |
697 | }; | |
698 | ||
699 | if (memcmp(&local.in6.sin6_addr, ipv4_prefix, sizeof(ipv4_prefix)) == 0 && | |
700 | memcmp(&remote.in6.sin6_addr, ipv4_prefix, sizeof(ipv4_prefix)) == 0) { | |
701 | const uint8_t | |
702 | *a = local.in6.sin6_addr.s6_addr+12, | |
703 | *b = remote.in6.sin6_addr.s6_addr+12; | |
704 | ||
705 | if (asprintf(&r, | |
77b088c2 LP |
706 | "%u-%u.%u.%u.%u:%u-%u.%u.%u.%u:%u", |
707 | nr, | |
2b061f5a LP |
708 | a[0], a[1], a[2], a[3], |
709 | ntohs(local.in6.sin6_port), | |
710 | b[0], b[1], b[2], b[3], | |
711 | ntohs(remote.in6.sin6_port)) < 0) | |
712 | return -ENOMEM; | |
713 | } else { | |
714 | char a[INET6_ADDRSTRLEN], b[INET6_ADDRSTRLEN]; | |
715 | ||
716 | if (asprintf(&r, | |
77b088c2 LP |
717 | "%u-%s:%u-%s:%u", |
718 | nr, | |
2b061f5a LP |
719 | inet_ntop(AF_INET6, &local.in6.sin6_addr, a, sizeof(a)), |
720 | ntohs(local.in6.sin6_port), | |
721 | inet_ntop(AF_INET6, &remote.in6.sin6_addr, b, sizeof(b)), | |
722 | ntohs(remote.in6.sin6_port)) < 0) | |
723 | return -ENOMEM; | |
724 | } | |
4f2d528d LP |
725 | |
726 | break; | |
727 | } | |
728 | ||
729 | case AF_UNIX: { | |
730 | struct ucred ucred; | |
eff05270 | 731 | int k; |
4f2d528d | 732 | |
eff05270 | 733 | k = getpeercred(fd, &ucred); |
d38f6e34 ZJS |
734 | if (k >= 0) { |
735 | if (asprintf(&r, | |
736 | "%u-"PID_FMT"-"UID_FMT, | |
737 | nr, ucred.pid, ucred.uid) < 0) | |
738 | return -ENOMEM; | |
739 | } else if (k == -ENODATA) { | |
740 | /* This handles the case where somebody is | |
741 | * connecting from another pid/uid namespace | |
742 | * (e.g. from outside of our container). */ | |
743 | if (asprintf(&r, | |
744 | "%u-unknown", | |
745 | nr) < 0) | |
746 | return -ENOMEM; | |
747 | } else | |
eff05270 | 748 | return k; |
2f20a8eb | 749 | |
2f20a8eb | 750 | break; |
4f2d528d LP |
751 | } |
752 | ||
753 | default: | |
754 | assert_not_reached("Unhandled socket type."); | |
755 | } | |
756 | ||
757 | *instance = r; | |
758 | return 0; | |
759 | } | |
760 | ||
034c6ed7 | 761 | static void socket_close_fds(Socket *s) { |
83c60c9f | 762 | SocketPort *p; |
811ba7a0 | 763 | char **i; |
83c60c9f LP |
764 | |
765 | assert(s); | |
766 | ||
034c6ed7 | 767 | LIST_FOREACH(port, p, s->ports) { |
718db961 LP |
768 | |
769 | p->event_source = sd_event_source_unref(p->event_source); | |
770 | ||
83c60c9f LP |
771 | if (p->fd < 0) |
772 | continue; | |
773 | ||
03e334a1 | 774 | p->fd = safe_close(p->fd); |
a16e1123 | 775 | |
bd1fe7c7 LP |
776 | /* One little note: we should normally not delete any |
777 | * sockets in the file system here! After all some | |
778 | * other process we spawned might still have a | |
779 | * reference of this fd and wants to continue to use | |
780 | * it. Therefore we delete sockets in the file system | |
781 | * before we create a new one, not after we stopped | |
782 | * using one! */ | |
783 | ||
784 | if (s->remove_on_stop) { | |
785 | switch (p->type) { | |
786 | ||
787 | case SOCKET_FIFO: | |
788 | unlink(p->path); | |
789 | break; | |
790 | ||
791 | case SOCKET_MQUEUE: | |
792 | mq_unlink(p->path); | |
793 | break; | |
794 | ||
795 | case SOCKET_SOCKET: | |
796 | socket_address_unlink(&p->address); | |
797 | break; | |
798 | ||
799 | default: | |
800 | break; | |
801 | } | |
802 | } | |
83c60c9f | 803 | } |
811ba7a0 LP |
804 | |
805 | if (s->remove_on_stop) | |
806 | STRV_FOREACH(i, s->symlinks) | |
807 | unlink(*i); | |
83c60c9f LP |
808 | } |
809 | ||
4fd5948e | 810 | static void socket_apply_socket_options(Socket *s, int fd) { |
d53e386d LP |
811 | int r; |
812 | ||
4fd5948e LP |
813 | assert(s); |
814 | assert(fd >= 0); | |
815 | ||
816 | if (s->keep_alive) { | |
817 | int b = s->keep_alive; | |
818 | if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &b, sizeof(b)) < 0) | |
79008bdd | 819 | log_unit_warning(UNIT(s)->id, "SO_KEEPALIVE failed: %m"); |
4fd5948e LP |
820 | } |
821 | ||
209e9dcd SS |
822 | if (s->keep_alive_time) { |
823 | int value = s->keep_alive_time / USEC_PER_SEC; | |
824 | if (setsockopt(fd, SOL_TCP, TCP_KEEPIDLE, &value, sizeof(value)) < 0) | |
79008bdd | 825 | log_unit_warning(UNIT(s)->id, "TCP_KEEPIDLE failed: %m"); |
209e9dcd SS |
826 | } |
827 | ||
828 | if (s->keep_alive_interval) { | |
829 | int value = s->keep_alive_interval / USEC_PER_SEC; | |
830 | if (setsockopt(fd, SOL_TCP, TCP_KEEPINTVL, &value, sizeof(value)) < 0) | |
79008bdd | 831 | log_unit_warning(UNIT(s)->id, "TCP_KEEPINTVL failed: %m"); |
209e9dcd SS |
832 | } |
833 | ||
834 | if (s->keep_alive_cnt) { | |
835 | int value = s->keep_alive_cnt; | |
836 | if (setsockopt(fd, SOL_SOCKET, TCP_KEEPCNT, &value, sizeof(value)) < 0) | |
79008bdd | 837 | log_unit_warning(UNIT(s)->id, "TCP_KEEPCNT failed: %m"); |
209e9dcd SS |
838 | } |
839 | ||
cc567c9b SS |
840 | if (s->defer_accept) { |
841 | int value = s->defer_accept / USEC_PER_SEC; | |
842 | if (setsockopt(fd, SOL_TCP, TCP_DEFER_ACCEPT, &value, sizeof(value)) < 0) | |
79008bdd | 843 | log_unit_warning(UNIT(s)->id, "TCP_DEFER_ACCEPT failed: %m"); |
cc567c9b SS |
844 | } |
845 | ||
4427c3f4 SS |
846 | if (s->no_delay) { |
847 | int b = s->no_delay; | |
848 | if (setsockopt(fd, SOL_TCP, TCP_NODELAY, &b, sizeof(b)) < 0) | |
79008bdd | 849 | log_unit_warning(UNIT(s)->id, "TCP_NODELAY failed: %m"); |
4427c3f4 SS |
850 | } |
851 | ||
ec6370a2 LP |
852 | if (s->broadcast) { |
853 | int one = 1; | |
854 | if (setsockopt(fd, SOL_SOCKET, SO_BROADCAST, &one, sizeof(one)) < 0) | |
79008bdd | 855 | log_unit_warning(UNIT(s)->id, "SO_BROADCAST failed: %m"); |
ec6370a2 LP |
856 | } |
857 | ||
d68af586 MS |
858 | if (s->pass_cred) { |
859 | int one = 1; | |
860 | if (setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) | |
79008bdd | 861 | log_unit_warning(UNIT(s)->id, "SO_PASSCRED failed: %m"); |
d68af586 MS |
862 | } |
863 | ||
54ecda32 LP |
864 | if (s->pass_sec) { |
865 | int one = 1; | |
866 | if (setsockopt(fd, SOL_SOCKET, SO_PASSSEC, &one, sizeof(one)) < 0) | |
79008bdd | 867 | log_unit_warning(UNIT(s)->id, "SO_PASSSEC failed: %m"); |
54ecda32 LP |
868 | } |
869 | ||
4fd5948e LP |
870 | if (s->priority >= 0) |
871 | if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &s->priority, sizeof(s->priority)) < 0) | |
79008bdd | 872 | log_unit_warning(UNIT(s)->id, "SO_PRIORITY failed: %m"); |
4fd5948e LP |
873 | |
874 | if (s->receive_buffer > 0) { | |
875 | int value = (int) s->receive_buffer; | |
7d9eaa84 LP |
876 | |
877 | /* We first try with SO_RCVBUFFORCE, in case we have the perms for that */ | |
878 | ||
b8cef44e | 879 | if (setsockopt(fd, SOL_SOCKET, SO_RCVBUFFORCE, &value, sizeof(value)) < 0) |
7d9eaa84 | 880 | if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value)) < 0) |
79008bdd | 881 | log_unit_warning(UNIT(s)->id, "SO_RCVBUF failed: %m"); |
4fd5948e LP |
882 | } |
883 | ||
884 | if (s->send_buffer > 0) { | |
885 | int value = (int) s->send_buffer; | |
b8cef44e | 886 | if (setsockopt(fd, SOL_SOCKET, SO_SNDBUFFORCE, &value, sizeof(value)) < 0) |
7d9eaa84 | 887 | if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, sizeof(value)) < 0) |
79008bdd | 888 | log_unit_warning(UNIT(s)->id, "SO_SNDBUF failed: %m"); |
4fd5948e LP |
889 | } |
890 | ||
891 | if (s->mark >= 0) | |
892 | if (setsockopt(fd, SOL_SOCKET, SO_MARK, &s->mark, sizeof(s->mark)) < 0) | |
79008bdd | 893 | log_unit_warning(UNIT(s)->id, "SO_MARK failed: %m"); |
4fd5948e LP |
894 | |
895 | if (s->ip_tos >= 0) | |
896 | if (setsockopt(fd, IPPROTO_IP, IP_TOS, &s->ip_tos, sizeof(s->ip_tos)) < 0) | |
79008bdd | 897 | log_unit_warning(UNIT(s)->id, "IP_TOS failed: %m"); |
4fd5948e | 898 | |
46925ac5 | 899 | if (s->ip_ttl >= 0) { |
d53e386d | 900 | int x; |
46925ac5 LP |
901 | |
902 | r = setsockopt(fd, IPPROTO_IP, IP_TTL, &s->ip_ttl, sizeof(s->ip_ttl)); | |
5bfcc1c6 FF |
903 | |
904 | if (socket_ipv6_is_supported()) | |
905 | x = setsockopt(fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &s->ip_ttl, sizeof(s->ip_ttl)); | |
906 | else { | |
907 | x = -1; | |
908 | errno = EAFNOSUPPORT; | |
909 | } | |
46925ac5 LP |
910 | |
911 | if (r < 0 && x < 0) | |
79008bdd | 912 | log_unit_warning(UNIT(s)->id, |
66870f90 | 913 | "IP_TTL/IPV6_UNICAST_HOPS failed: %m"); |
46925ac5 | 914 | } |
cebf8b20 TT |
915 | |
916 | if (s->tcp_congestion) | |
917 | if (setsockopt(fd, SOL_TCP, TCP_CONGESTION, s->tcp_congestion, strlen(s->tcp_congestion)+1) < 0) | |
79008bdd | 918 | log_unit_warning(UNIT(s)->id, "TCP_CONGESTION failed: %m"); |
0eb59ccf | 919 | |
718db961 LP |
920 | if (s->reuse_port) { |
921 | int b = s->reuse_port; | |
f0511bd7 | 922 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &b, sizeof(b)) < 0) |
79008bdd | 923 | log_unit_warning(UNIT(s)->id, "SO_REUSEPORT failed: %m"); |
f7db7a69 SL |
924 | } |
925 | ||
d53e386d LP |
926 | if (s->smack_ip_in) { |
927 | r = mac_smack_apply_ip_in_fd(fd, s->smack_ip_in); | |
928 | if (r < 0) | |
31938a85 | 929 | log_unit_error_errno(UNIT(s)->id, r, "mac_smack_apply_ip_in_fd: %m"); |
d53e386d | 930 | } |
9a4e038c | 931 | |
d53e386d LP |
932 | if (s->smack_ip_out) { |
933 | r = mac_smack_apply_ip_out_fd(fd, s->smack_ip_out); | |
934 | if (r < 0) | |
31938a85 | 935 | log_unit_error_errno(UNIT(s)->id, r, "mac_smack_apply_ip_out_fd: %m"); |
d53e386d | 936 | } |
4fd5948e LP |
937 | } |
938 | ||
b15bdda8 | 939 | static void socket_apply_fifo_options(Socket *s, int fd) { |
d53e386d LP |
940 | int r; |
941 | ||
4fd5948e LP |
942 | assert(s); |
943 | assert(fd >= 0); | |
944 | ||
945 | if (s->pipe_size > 0) | |
946 | if (fcntl(fd, F_SETPIPE_SZ, s->pipe_size) < 0) | |
79008bdd | 947 | log_unit_warning(UNIT(s)->id, "F_SETPIPE_SZ: %m"); |
0eb59ccf | 948 | |
d53e386d LP |
949 | if (s->smack) { |
950 | r = mac_smack_apply_fd(fd, s->smack); | |
951 | if (r < 0) | |
31938a85 | 952 | log_unit_error_errno(UNIT(s)->id, r, "mac_smack_apply_fd: %m"); |
d53e386d | 953 | } |
4fd5948e LP |
954 | } |
955 | ||
b15bdda8 LP |
956 | static int fifo_address_create( |
957 | const char *path, | |
958 | mode_t directory_mode, | |
959 | mode_t socket_mode, | |
b15bdda8 LP |
960 | int *_fd) { |
961 | ||
7a58bfa4 | 962 | int fd = -1, r = 0; |
b15bdda8 LP |
963 | struct stat st; |
964 | mode_t old_mask; | |
965 | ||
966 | assert(path); | |
967 | assert(_fd); | |
968 | ||
d2e54fae | 969 | mkdir_parents_label(path, directory_mode); |
b15bdda8 | 970 | |
ecabcf8b | 971 | r = mac_selinux_create_file_prepare(path, S_IFIFO); |
e9a5ef7c | 972 | if (r < 0) |
56cf987f | 973 | goto fail; |
b15bdda8 LP |
974 | |
975 | /* Enforce the right access mode for the fifo */ | |
976 | old_mask = umask(~ socket_mode); | |
977 | ||
978 | /* Include the original umask in our mask */ | |
979 | umask(~socket_mode | old_mask); | |
980 | ||
981 | r = mkfifo(path, socket_mode); | |
982 | umask(old_mask); | |
983 | ||
94bc2731 | 984 | if (r < 0 && errno != EEXIST) { |
b15bdda8 LP |
985 | r = -errno; |
986 | goto fail; | |
987 | } | |
988 | ||
e4f44e73 | 989 | if ((fd = open(path, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW)) < 0) { |
b15bdda8 LP |
990 | r = -errno; |
991 | goto fail; | |
992 | } | |
993 | ||
ecabcf8b | 994 | mac_selinux_create_file_clear(); |
7a58bfa4 | 995 | |
b15bdda8 LP |
996 | if (fstat(fd, &st) < 0) { |
997 | r = -errno; | |
998 | goto fail; | |
999 | } | |
1000 | ||
1001 | if (!S_ISFIFO(st.st_mode) || | |
de0200fc | 1002 | (st.st_mode & 0777) != (socket_mode & ~old_mask) || |
e4f44e73 DR |
1003 | st.st_uid != getuid() || |
1004 | st.st_gid != getgid()) { | |
b15bdda8 LP |
1005 | |
1006 | r = -EEXIST; | |
1007 | goto fail; | |
1008 | } | |
1009 | ||
1010 | *_fd = fd; | |
1011 | return 0; | |
1012 | ||
1013 | fail: | |
ecabcf8b | 1014 | mac_selinux_create_file_clear(); |
03e334a1 | 1015 | safe_close(fd); |
b15bdda8 LP |
1016 | |
1017 | return r; | |
1018 | } | |
1019 | ||
b0a3f2bc LP |
1020 | static int special_address_create( |
1021 | const char *path, | |
1022 | int *_fd) { | |
1023 | ||
1024 | int fd = -1, r = 0; | |
1025 | struct stat st; | |
1026 | ||
1027 | assert(path); | |
1028 | assert(_fd); | |
1029 | ||
811ba7a0 LP |
1030 | fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW); |
1031 | if (fd < 0) { | |
b0a3f2bc LP |
1032 | r = -errno; |
1033 | goto fail; | |
1034 | } | |
1035 | ||
1036 | if (fstat(fd, &st) < 0) { | |
1037 | r = -errno; | |
1038 | goto fail; | |
1039 | } | |
1040 | ||
1041 | /* Check whether this is a /proc, /sys or /dev file or char device */ | |
1042 | if (!S_ISREG(st.st_mode) && !S_ISCHR(st.st_mode)) { | |
1043 | r = -EEXIST; | |
1044 | goto fail; | |
1045 | } | |
1046 | ||
1047 | *_fd = fd; | |
1048 | return 0; | |
1049 | ||
1050 | fail: | |
03e334a1 | 1051 | safe_close(fd); |
b0a3f2bc LP |
1052 | |
1053 | return r; | |
1054 | } | |
1055 | ||
916abb21 LP |
1056 | static int mq_address_create( |
1057 | const char *path, | |
1058 | mode_t mq_mode, | |
1059 | long maxmsg, | |
1060 | long msgsize, | |
1061 | int *_fd) { | |
1062 | ||
1063 | int fd = -1, r = 0; | |
1064 | struct stat st; | |
1065 | mode_t old_mask; | |
1066 | struct mq_attr _attr, *attr = NULL; | |
1067 | ||
1068 | assert(path); | |
1069 | assert(_fd); | |
1070 | ||
1071 | if (maxmsg > 0 && msgsize > 0) { | |
1072 | zero(_attr); | |
1073 | _attr.mq_flags = O_NONBLOCK; | |
1074 | _attr.mq_maxmsg = maxmsg; | |
1075 | _attr.mq_msgsize = msgsize; | |
1076 | attr = &_attr; | |
1077 | } | |
1078 | ||
1079 | /* Enforce the right access mode for the mq */ | |
1080 | old_mask = umask(~ mq_mode); | |
1081 | ||
1082 | /* Include the original umask in our mask */ | |
1083 | umask(~mq_mode | old_mask); | |
916abb21 LP |
1084 | fd = mq_open(path, O_RDONLY|O_CLOEXEC|O_NONBLOCK|O_CREAT, mq_mode, attr); |
1085 | umask(old_mask); | |
1086 | ||
8ea913b2 | 1087 | if (fd < 0) { |
916abb21 LP |
1088 | r = -errno; |
1089 | goto fail; | |
1090 | } | |
1091 | ||
1092 | if (fstat(fd, &st) < 0) { | |
1093 | r = -errno; | |
1094 | goto fail; | |
1095 | } | |
1096 | ||
1097 | if ((st.st_mode & 0777) != (mq_mode & ~old_mask) || | |
1098 | st.st_uid != getuid() || | |
1099 | st.st_gid != getgid()) { | |
1100 | ||
1101 | r = -EEXIST; | |
1102 | goto fail; | |
1103 | } | |
1104 | ||
1105 | *_fd = fd; | |
1106 | return 0; | |
1107 | ||
1108 | fail: | |
03e334a1 | 1109 | safe_close(fd); |
916abb21 LP |
1110 | return r; |
1111 | } | |
1112 | ||
811ba7a0 LP |
1113 | static int socket_symlink(Socket *s) { |
1114 | const char *p; | |
1115 | char **i; | |
1116 | ||
1117 | assert(s); | |
1118 | ||
1119 | p = socket_find_symlink_target(s); | |
1120 | if (!p) | |
1121 | return 0; | |
1122 | ||
1123 | STRV_FOREACH(i, s->symlinks) | |
43b133b4 | 1124 | symlink_label(p, *i); |
811ba7a0 LP |
1125 | |
1126 | return 0; | |
1127 | } | |
1128 | ||
034c6ed7 | 1129 | static int socket_open_fds(Socket *s) { |
83c60c9f LP |
1130 | SocketPort *p; |
1131 | int r; | |
56cf987f | 1132 | char *label = NULL; |
049f8642 | 1133 | bool know_label = false; |
83c60c9f LP |
1134 | |
1135 | assert(s); | |
1136 | ||
034c6ed7 | 1137 | LIST_FOREACH(port, p, s->ports) { |
83c60c9f | 1138 | |
034c6ed7 LP |
1139 | if (p->fd >= 0) |
1140 | continue; | |
83c60c9f LP |
1141 | |
1142 | if (p->type == SOCKET_SOCKET) { | |
049f8642 | 1143 | |
7f416dae LP |
1144 | if (!know_label) { |
1145 | /* Figure out label, if we don't it know | |
1146 | * yet. We do it once, for the first | |
1147 | * socket where we need this and | |
1148 | * remember it for the rest. */ | |
1149 | ||
1150 | if (s->selinux_context_from_net) { | |
1151 | /* Get it from the network label */ | |
1152 | ||
1153 | r = mac_selinux_get_our_label(&label); | |
75514a70 | 1154 | if (r < 0 && r != -EOPNOTSUPP) |
7f416dae | 1155 | goto rollback; |
049f8642 | 1156 | |
7f416dae LP |
1157 | } else { |
1158 | /* Get it from the executable we are about to start */ | |
1159 | ||
1160 | r = socket_instantiate_service(s); | |
1161 | if (r < 0) | |
1162 | goto rollback; | |
1163 | ||
1164 | if (UNIT_ISSET(s->service) && | |
1165 | SERVICE(UNIT_DEREF(s->service))->exec_command[SERVICE_EXEC_START]) { | |
1166 | r = mac_selinux_get_create_label_from_exe(SERVICE(UNIT_DEREF(s->service))->exec_command[SERVICE_EXEC_START]->path, &label); | |
75514a70 | 1167 | if (r < 0 && r != -EPERM && r != -EOPNOTSUPP) |
7f416dae LP |
1168 | goto rollback; |
1169 | } | |
189583d7 | 1170 | } |
049f8642 LP |
1171 | |
1172 | know_label = true; | |
1173 | } | |
1174 | ||
175a3d25 LP |
1175 | r = socket_address_listen( |
1176 | &p->address, | |
1177 | SOCK_CLOEXEC|SOCK_NONBLOCK, | |
1178 | s->backlog, | |
1179 | s->bind_ipv6_only, | |
1180 | s->bind_to_device, | |
1181 | s->free_bind, | |
1182 | s->transparent, | |
1183 | s->directory_mode, | |
1184 | s->socket_mode, | |
1185 | label); | |
1186 | if (r < 0) | |
83c60c9f LP |
1187 | goto rollback; |
1188 | ||
175a3d25 | 1189 | p->fd = r; |
4fd5948e | 1190 | socket_apply_socket_options(s, p->fd); |
811ba7a0 | 1191 | socket_symlink(s); |
4fd5948e | 1192 | |
b0a3f2bc LP |
1193 | } else if (p->type == SOCKET_SPECIAL) { |
1194 | ||
175a3d25 LP |
1195 | r = special_address_create( |
1196 | p->path, | |
1197 | &p->fd); | |
1198 | if (r < 0) | |
b0a3f2bc LP |
1199 | goto rollback; |
1200 | ||
b15bdda8 | 1201 | } else if (p->type == SOCKET_FIFO) { |
83c60c9f | 1202 | |
175a3d25 LP |
1203 | r = fifo_address_create( |
1204 | p->path, | |
1205 | s->directory_mode, | |
1206 | s->socket_mode, | |
1207 | &p->fd); | |
1208 | if (r < 0) | |
83c60c9f | 1209 | goto rollback; |
83c60c9f | 1210 | |
b15bdda8 | 1211 | socket_apply_fifo_options(s, p->fd); |
811ba7a0 LP |
1212 | socket_symlink(s); |
1213 | ||
916abb21 | 1214 | } else if (p->type == SOCKET_MQUEUE) { |
83c60c9f | 1215 | |
175a3d25 LP |
1216 | r = mq_address_create( |
1217 | p->path, | |
1218 | s->socket_mode, | |
1219 | s->mq_maxmsg, | |
1220 | s->mq_msgsize, | |
1221 | &p->fd); | |
1222 | if (r < 0) | |
916abb21 | 1223 | goto rollback; |
b15bdda8 LP |
1224 | } else |
1225 | assert_not_reached("Unknown port type"); | |
034c6ed7 LP |
1226 | } |
1227 | ||
cc56fafe | 1228 | mac_selinux_free(label); |
034c6ed7 LP |
1229 | return 0; |
1230 | ||
1231 | rollback: | |
1232 | socket_close_fds(s); | |
cc56fafe | 1233 | mac_selinux_free(label); |
7f416dae | 1234 | |
034c6ed7 LP |
1235 | return r; |
1236 | } | |
1237 | ||
1238 | static void socket_unwatch_fds(Socket *s) { | |
1239 | SocketPort *p; | |
718db961 | 1240 | int r; |
9152c765 | 1241 | |
034c6ed7 LP |
1242 | assert(s); |
1243 | ||
1244 | LIST_FOREACH(port, p, s->ports) { | |
1245 | if (p->fd < 0) | |
1246 | continue; | |
1247 | ||
a4152e3f LP |
1248 | if (!p->event_source) |
1249 | continue; | |
1250 | ||
1251 | r = sd_event_source_set_enabled(p->event_source, SD_EVENT_OFF); | |
1252 | if (r < 0) | |
79008bdd | 1253 | log_unit_debug(UNIT(s)->id, "Failed to disable event source."); |
83c60c9f | 1254 | } |
034c6ed7 LP |
1255 | } |
1256 | ||
1257 | static int socket_watch_fds(Socket *s) { | |
1258 | SocketPort *p; | |
1259 | int r; | |
1260 | ||
1261 | assert(s); | |
83c60c9f | 1262 | |
034c6ed7 LP |
1263 | LIST_FOREACH(port, p, s->ports) { |
1264 | if (p->fd < 0) | |
1265 | continue; | |
1266 | ||
718db961 LP |
1267 | if (p->event_source) |
1268 | r = sd_event_source_set_enabled(p->event_source, SD_EVENT_ON); | |
1269 | else | |
151b9b96 | 1270 | r = sd_event_add_io(UNIT(s)->manager->event, &p->event_source, p->fd, EPOLLIN, socket_dispatch_io, p); |
4f2d528d | 1271 | |
718db961 | 1272 | if (r < 0) { |
31938a85 | 1273 | log_unit_warning_errno(UNIT(s)->id, r, "Failed to watch listening fds: %m"); |
034c6ed7 | 1274 | goto fail; |
718db961 | 1275 | } |
034c6ed7 | 1276 | } |
83c60c9f | 1277 | |
542563ba | 1278 | return 0; |
83c60c9f | 1279 | |
034c6ed7 LP |
1280 | fail: |
1281 | socket_unwatch_fds(s); | |
1282 | return r; | |
1283 | } | |
1284 | ||
1285 | static void socket_set_state(Socket *s, SocketState state) { | |
1286 | SocketState old_state; | |
1287 | assert(s); | |
1288 | ||
1289 | old_state = s->state; | |
1290 | s->state = state; | |
1291 | ||
bd1fe7c7 LP |
1292 | if (!IN_SET(state, |
1293 | SOCKET_START_PRE, | |
3900e5fd | 1294 | SOCKET_START_CHOWN, |
bd1fe7c7 LP |
1295 | SOCKET_START_POST, |
1296 | SOCKET_STOP_PRE, | |
1297 | SOCKET_STOP_PRE_SIGTERM, | |
1298 | SOCKET_STOP_PRE_SIGKILL, | |
1299 | SOCKET_STOP_POST, | |
1300 | SOCKET_FINAL_SIGTERM, | |
1301 | SOCKET_FINAL_SIGKILL)) { | |
718db961 LP |
1302 | |
1303 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
5e94833f | 1304 | socket_unwatch_control_pid(s); |
034c6ed7 | 1305 | s->control_command = NULL; |
a16e1123 | 1306 | s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID; |
e537352b | 1307 | } |
034c6ed7 | 1308 | |
a16e1123 LP |
1309 | if (state != SOCKET_LISTENING) |
1310 | socket_unwatch_fds(s); | |
1311 | ||
bd1fe7c7 | 1312 | if (!IN_SET(state, |
3900e5fd | 1313 | SOCKET_START_CHOWN, |
bd1fe7c7 LP |
1314 | SOCKET_START_POST, |
1315 | SOCKET_LISTENING, | |
1316 | SOCKET_RUNNING, | |
1317 | SOCKET_STOP_PRE, | |
1318 | SOCKET_STOP_PRE_SIGTERM, | |
1319 | SOCKET_STOP_PRE_SIGKILL)) | |
034c6ed7 LP |
1320 | socket_close_fds(s); |
1321 | ||
e537352b | 1322 | if (state != old_state) |
79008bdd | 1323 | log_unit_debug(UNIT(s)->id, "%s changed %s -> %s", |
e821075a | 1324 | UNIT(s)->id, socket_state_to_string(old_state), socket_state_to_string(state)); |
acbb0225 | 1325 | |
e2f3b44c | 1326 | unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], true); |
034c6ed7 LP |
1327 | } |
1328 | ||
a16e1123 LP |
1329 | static int socket_coldplug(Unit *u) { |
1330 | Socket *s = SOCKET(u); | |
1331 | int r; | |
1332 | ||
1333 | assert(s); | |
1334 | assert(s->state == SOCKET_DEAD); | |
1335 | ||
e821075a LP |
1336 | if (s->deserialized_state == s->state) |
1337 | return 0; | |
a16e1123 | 1338 | |
3900e5fd LP |
1339 | if (IN_SET(s->deserialized_state, |
1340 | SOCKET_START_PRE, | |
1341 | SOCKET_START_CHOWN, | |
1342 | SOCKET_START_POST, | |
1343 | SOCKET_STOP_PRE, | |
1344 | SOCKET_STOP_PRE_SIGTERM, | |
1345 | SOCKET_STOP_PRE_SIGKILL, | |
1346 | SOCKET_STOP_POST, | |
1347 | SOCKET_FINAL_SIGTERM, | |
1348 | SOCKET_FINAL_SIGKILL)) { | |
a16e1123 | 1349 | |
e821075a LP |
1350 | if (s->control_pid <= 0) |
1351 | return -EBADMSG; | |
a16e1123 | 1352 | |
e821075a LP |
1353 | r = unit_watch_pid(UNIT(s), s->control_pid); |
1354 | if (r < 0) | |
1355 | return r; | |
a16e1123 | 1356 | |
e821075a LP |
1357 | r = socket_arm_timer(s); |
1358 | if (r < 0) | |
1359 | return r; | |
1360 | } | |
a16e1123 | 1361 | |
3900e5fd LP |
1362 | if (IN_SET(s->deserialized_state, |
1363 | SOCKET_START_CHOWN, | |
1364 | SOCKET_START_POST, | |
1365 | SOCKET_LISTENING, | |
1366 | SOCKET_RUNNING, | |
1367 | SOCKET_STOP_PRE, | |
1368 | SOCKET_STOP_PRE_SIGTERM, | |
1369 | SOCKET_STOP_PRE_SIGKILL)) { | |
e821075a LP |
1370 | r = socket_open_fds(s); |
1371 | if (r < 0) | |
1372 | return r; | |
1373 | } | |
a16e1123 | 1374 | |
e821075a LP |
1375 | if (s->deserialized_state == SOCKET_LISTENING) { |
1376 | r = socket_watch_fds(s); | |
1377 | if (r < 0) | |
1378 | return r; | |
a16e1123 LP |
1379 | } |
1380 | ||
e821075a | 1381 | socket_set_state(s, s->deserialized_state); |
a16e1123 LP |
1382 | return 0; |
1383 | } | |
1384 | ||
e537352b | 1385 | static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) { |
3900e5fd | 1386 | _cleanup_free_ char **argv = NULL; |
034c6ed7 LP |
1387 | pid_t pid; |
1388 | int r; | |
9fa95f85 DM |
1389 | ExecParameters exec_params = { |
1390 | .apply_permissions = true, | |
1391 | .apply_chroot = true, | |
1392 | .apply_tty_stdin = true, | |
1393 | }; | |
034c6ed7 LP |
1394 | |
1395 | assert(s); | |
1396 | assert(c); | |
1397 | assert(_pid); | |
1398 | ||
4ad49000 LP |
1399 | unit_realize_cgroup(UNIT(s)); |
1400 | ||
613b411c LP |
1401 | r = unit_setup_exec_runtime(UNIT(s)); |
1402 | if (r < 0) | |
1403 | goto fail; | |
1404 | ||
718db961 | 1405 | r = socket_arm_timer(s); |
36697dc0 | 1406 | if (r < 0) |
e537352b | 1407 | goto fail; |
034c6ed7 | 1408 | |
19f6d710 LP |
1409 | r = unit_full_printf_strv(UNIT(s), c->argv, &argv); |
1410 | if (r < 0) | |
9e2f7c11 | 1411 | goto fail; |
9e2f7c11 | 1412 | |
9fa95f85 DM |
1413 | exec_params.argv = argv; |
1414 | exec_params.environment = UNIT(s)->manager->environment; | |
1415 | exec_params.confirm_spawn = UNIT(s)->manager->confirm_spawn; | |
1416 | exec_params.cgroup_supported = UNIT(s)->manager->cgroup_supported; | |
1417 | exec_params.cgroup_path = UNIT(s)->cgroup_path; | |
a931ad47 | 1418 | exec_params.cgroup_delegate = s->cgroup_context.delegate; |
9fa95f85 DM |
1419 | exec_params.runtime_prefix = manager_get_runtime_prefix(UNIT(s)->manager); |
1420 | exec_params.unit_id = UNIT(s)->id; | |
1421 | ||
9e2f7c11 | 1422 | r = exec_spawn(c, |
9e2f7c11 | 1423 | &s->exec_context, |
9fa95f85 | 1424 | &exec_params, |
613b411c | 1425 | s->exec_runtime, |
9e2f7c11 | 1426 | &pid); |
cee288ad TA |
1427 | if (r < 0) |
1428 | goto fail; | |
9e2f7c11 | 1429 | |
3900e5fd | 1430 | r = unit_watch_pid(UNIT(s), pid); |
9e2f7c11 | 1431 | if (r < 0) |
3900e5fd | 1432 | /* FIXME: we need to do something here */ |
034c6ed7 LP |
1433 | goto fail; |
1434 | ||
3900e5fd LP |
1435 | *_pid = pid; |
1436 | return 0; | |
1437 | ||
1438 | fail: | |
1439 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); | |
1440 | return r; | |
1441 | } | |
1442 | ||
1443 | static int socket_chown(Socket *s, pid_t *_pid) { | |
1444 | pid_t pid; | |
1445 | int r; | |
1446 | ||
1447 | r = socket_arm_timer(s); | |
1448 | if (r < 0) | |
1449 | goto fail; | |
1450 | ||
1451 | /* We have to resolve the user names out-of-process, hence | |
1452 | * let's fork here. It's messy, but well, what can we do? */ | |
1453 | ||
1454 | pid = fork(); | |
1455 | if (pid < 0) | |
1456 | return -errno; | |
1457 | ||
1458 | if (pid == 0) { | |
1459 | SocketPort *p; | |
fed1e721 LP |
1460 | uid_t uid = UID_INVALID; |
1461 | gid_t gid = GID_INVALID; | |
3900e5fd LP |
1462 | int ret; |
1463 | ||
1464 | default_signals(SIGNALS_CRASH_HANDLER, SIGNALS_IGNORE, -1); | |
1465 | ignore_signals(SIGPIPE, -1); | |
1466 | log_forget_fds(); | |
1467 | ||
1468 | if (!isempty(s->user)) { | |
1469 | const char *user = s->user; | |
1470 | ||
1471 | r = get_user_creds(&user, &uid, &gid, NULL, NULL); | |
1472 | if (r < 0) { | |
1473 | ret = EXIT_USER; | |
1474 | goto fail_child; | |
1475 | } | |
1476 | } | |
1477 | ||
1478 | if (!isempty(s->group)) { | |
1479 | const char *group = s->group; | |
1480 | ||
1481 | r = get_group_creds(&group, &gid); | |
1482 | if (r < 0) { | |
1483 | ret = EXIT_GROUP; | |
1484 | goto fail_child; | |
1485 | } | |
1486 | } | |
1487 | ||
1488 | LIST_FOREACH(port, p, s->ports) { | |
e5a1c18d | 1489 | const char *path = NULL; |
3900e5fd LP |
1490 | |
1491 | if (p->type == SOCKET_SOCKET) | |
1492 | path = socket_address_get_path(&p->address); | |
1493 | else if (p->type == SOCKET_FIFO) | |
1494 | path = p->path; | |
1495 | ||
1496 | if (!path) | |
1497 | continue; | |
1498 | ||
1499 | if (chown(path, uid, gid) < 0) { | |
1500 | r = -errno; | |
1501 | ret = EXIT_CHOWN; | |
1502 | goto fail_child; | |
1503 | } | |
1504 | } | |
1505 | ||
1506 | _exit(0); | |
1507 | ||
1508 | fail_child: | |
1509 | log_open(); | |
da927ba9 | 1510 | log_error_errno(r, "Failed to chown socket at step %s: %m", exit_status_to_string(ret, EXIT_STATUS_SYSTEMD)); |
3900e5fd LP |
1511 | |
1512 | _exit(ret); | |
1513 | } | |
1514 | ||
718db961 LP |
1515 | r = unit_watch_pid(UNIT(s), pid); |
1516 | if (r < 0) | |
034c6ed7 | 1517 | goto fail; |
83c60c9f | 1518 | |
034c6ed7 | 1519 | *_pid = pid; |
034c6ed7 LP |
1520 | return 0; |
1521 | ||
1522 | fail: | |
718db961 | 1523 | s->timer_event_source = sd_event_source_unref(s->timer_event_source); |
83c60c9f | 1524 | return r; |
542563ba LP |
1525 | } |
1526 | ||
cfc4eb4c | 1527 | static void socket_enter_dead(Socket *s, SocketResult f) { |
034c6ed7 LP |
1528 | assert(s); |
1529 | ||
cfc4eb4c LP |
1530 | if (f != SOCKET_SUCCESS) |
1531 | s->result = f; | |
034c6ed7 | 1532 | |
613b411c LP |
1533 | exec_runtime_destroy(s->exec_runtime); |
1534 | s->exec_runtime = exec_runtime_unref(s->exec_runtime); | |
1535 | ||
e66cf1a3 LP |
1536 | exec_context_destroy_runtime_directory(&s->exec_context, manager_get_runtime_prefix(UNIT(s)->manager)); |
1537 | ||
cfc4eb4c | 1538 | socket_set_state(s, s->result != SOCKET_SUCCESS ? SOCKET_FAILED : SOCKET_DEAD); |
034c6ed7 LP |
1539 | } |
1540 | ||
cfc4eb4c | 1541 | static void socket_enter_signal(Socket *s, SocketState state, SocketResult f); |
80876c20 | 1542 | |
cfc4eb4c | 1543 | static void socket_enter_stop_post(Socket *s, SocketResult f) { |
034c6ed7 LP |
1544 | int r; |
1545 | assert(s); | |
1546 | ||
cfc4eb4c LP |
1547 | if (f != SOCKET_SUCCESS) |
1548 | s->result = f; | |
034c6ed7 | 1549 | |
5e94833f | 1550 | socket_unwatch_control_pid(s); |
a16e1123 | 1551 | s->control_command_id = SOCKET_EXEC_STOP_POST; |
3900e5fd | 1552 | s->control_command = s->exec_command[SOCKET_EXEC_STOP_POST]; |
a16e1123 | 1553 | |
3900e5fd LP |
1554 | if (s->control_command) { |
1555 | r = socket_spawn(s, s->control_command, &s->control_pid); | |
1556 | if (r < 0) | |
034c6ed7 LP |
1557 | goto fail; |
1558 | ||
80876c20 LP |
1559 | socket_set_state(s, SOCKET_STOP_POST); |
1560 | } else | |
cfc4eb4c | 1561 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_SUCCESS); |
034c6ed7 LP |
1562 | |
1563 | return; | |
1564 | ||
1565 | fail: | |
79008bdd | 1566 | log_unit_warning(UNIT(s)->id, |
66870f90 ZJS |
1567 | "%s failed to run 'stop-post' task: %s", |
1568 | UNIT(s)->id, strerror(-r)); | |
cfc4eb4c | 1569 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_RESOURCES); |
034c6ed7 LP |
1570 | } |
1571 | ||
cfc4eb4c | 1572 | static void socket_enter_signal(Socket *s, SocketState state, SocketResult f) { |
034c6ed7 LP |
1573 | int r; |
1574 | ||
1575 | assert(s); | |
1576 | ||
cfc4eb4c LP |
1577 | if (f != SOCKET_SUCCESS) |
1578 | s->result = f; | |
034c6ed7 | 1579 | |
cd2086fe LP |
1580 | r = unit_kill_context( |
1581 | UNIT(s), | |
1582 | &s->kill_context, | |
db2cb23b UTL |
1583 | (state != SOCKET_STOP_PRE_SIGTERM && state != SOCKET_FINAL_SIGTERM) ? |
1584 | KILL_KILL : KILL_TERMINATE, | |
cd2086fe LP |
1585 | -1, |
1586 | s->control_pid, | |
1587 | false); | |
1588 | if (r < 0) | |
1589 | goto fail; | |
034c6ed7 | 1590 | |
cd2086fe | 1591 | if (r > 0) { |
718db961 | 1592 | r = socket_arm_timer(s); |
36697dc0 | 1593 | if (r < 0) |
80876c20 | 1594 | goto fail; |
d6ea93e3 | 1595 | |
80876c20 | 1596 | socket_set_state(s, state); |
ac84d1fb LP |
1597 | } else if (state == SOCKET_STOP_PRE_SIGTERM) |
1598 | socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, SOCKET_SUCCESS); | |
1599 | else if (state == SOCKET_STOP_PRE_SIGKILL) | |
cfc4eb4c | 1600 | socket_enter_stop_post(s, SOCKET_SUCCESS); |
ac84d1fb LP |
1601 | else if (state == SOCKET_FINAL_SIGTERM) |
1602 | socket_enter_signal(s, SOCKET_FINAL_SIGKILL, SOCKET_SUCCESS); | |
80876c20 | 1603 | else |
cfc4eb4c | 1604 | socket_enter_dead(s, SOCKET_SUCCESS); |
034c6ed7 LP |
1605 | |
1606 | return; | |
1607 | ||
1608 | fail: | |
31938a85 | 1609 | log_unit_warning_errno(UNIT(s)->id, r, "%s failed to kill processes: %m", UNIT(s)->id); |
034c6ed7 LP |
1610 | |
1611 | if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL) | |
cfc4eb4c | 1612 | socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 | 1613 | else |
cfc4eb4c | 1614 | socket_enter_dead(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 LP |
1615 | } |
1616 | ||
cfc4eb4c | 1617 | static void socket_enter_stop_pre(Socket *s, SocketResult f) { |
034c6ed7 LP |
1618 | int r; |
1619 | assert(s); | |
1620 | ||
cfc4eb4c LP |
1621 | if (f != SOCKET_SUCCESS) |
1622 | s->result = f; | |
034c6ed7 | 1623 | |
5e94833f | 1624 | socket_unwatch_control_pid(s); |
a16e1123 | 1625 | s->control_command_id = SOCKET_EXEC_STOP_PRE; |
3900e5fd | 1626 | s->control_command = s->exec_command[SOCKET_EXEC_STOP_PRE]; |
a16e1123 | 1627 | |
3900e5fd LP |
1628 | if (s->control_command) { |
1629 | r = socket_spawn(s, s->control_command, &s->control_pid); | |
1630 | if (r < 0) | |
034c6ed7 LP |
1631 | goto fail; |
1632 | ||
80876c20 LP |
1633 | socket_set_state(s, SOCKET_STOP_PRE); |
1634 | } else | |
cfc4eb4c | 1635 | socket_enter_stop_post(s, SOCKET_SUCCESS); |
034c6ed7 LP |
1636 | |
1637 | return; | |
1638 | ||
1639 | fail: | |
31938a85 | 1640 | log_unit_warning_errno(UNIT(s)->id, r, "%s failed to run 'stop-pre' task: %m", UNIT(s)->id); |
cfc4eb4c | 1641 | socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 LP |
1642 | } |
1643 | ||
e9af15c3 LP |
1644 | static void socket_enter_listening(Socket *s) { |
1645 | int r; | |
1646 | assert(s); | |
1647 | ||
cfc4eb4c LP |
1648 | r = socket_watch_fds(s); |
1649 | if (r < 0) { | |
31938a85 | 1650 | log_unit_warning_errno(UNIT(s)->id, r, "%s failed to watch sockets: %m", UNIT(s)->id); |
e9af15c3 LP |
1651 | goto fail; |
1652 | } | |
1653 | ||
1654 | socket_set_state(s, SOCKET_LISTENING); | |
1655 | return; | |
1656 | ||
1657 | fail: | |
cfc4eb4c | 1658 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); |
e9af15c3 LP |
1659 | } |
1660 | ||
034c6ed7 LP |
1661 | static void socket_enter_start_post(Socket *s) { |
1662 | int r; | |
1663 | assert(s); | |
1664 | ||
3900e5fd LP |
1665 | socket_unwatch_control_pid(s); |
1666 | s->control_command_id = SOCKET_EXEC_START_POST; | |
1667 | s->control_command = s->exec_command[SOCKET_EXEC_START_POST]; | |
1668 | ||
1669 | if (s->control_command) { | |
1670 | r = socket_spawn(s, s->control_command, &s->control_pid); | |
1671 | if (r < 0) { | |
31938a85 | 1672 | log_unit_warning_errno(UNIT(s)->id, r, "%s failed to run 'start-post' task: %m", UNIT(s)->id); |
3900e5fd LP |
1673 | goto fail; |
1674 | } | |
1675 | ||
1676 | socket_set_state(s, SOCKET_START_POST); | |
1677 | } else | |
1678 | socket_enter_listening(s); | |
1679 | ||
1680 | return; | |
1681 | ||
1682 | fail: | |
1683 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); | |
1684 | } | |
1685 | ||
1686 | static void socket_enter_start_chown(Socket *s) { | |
1687 | int r; | |
1688 | ||
1689 | assert(s); | |
1690 | ||
cfc4eb4c LP |
1691 | r = socket_open_fds(s); |
1692 | if (r < 0) { | |
31938a85 | 1693 | log_unit_warning_errno(UNIT(s)->id, r, "%s failed to listen on sockets: %m", UNIT(s)->id); |
034c6ed7 LP |
1694 | goto fail; |
1695 | } | |
1696 | ||
3900e5fd | 1697 | if (!isempty(s->user) || !isempty(s->group)) { |
5e94833f | 1698 | |
3900e5fd LP |
1699 | socket_unwatch_control_pid(s); |
1700 | s->control_command_id = SOCKET_EXEC_START_CHOWN; | |
1701 | s->control_command = NULL; | |
a16e1123 | 1702 | |
3900e5fd | 1703 | r = socket_chown(s, &s->control_pid); |
cfc4eb4c | 1704 | if (r < 0) { |
31938a85 | 1705 | log_unit_warning_errno(UNIT(s)->id, r, "%s failed to fork 'start-chown' task: %m", UNIT(s)->id); |
034c6ed7 LP |
1706 | goto fail; |
1707 | } | |
1708 | ||
3900e5fd | 1709 | socket_set_state(s, SOCKET_START_CHOWN); |
80876c20 | 1710 | } else |
3900e5fd | 1711 | socket_enter_start_post(s); |
034c6ed7 LP |
1712 | |
1713 | return; | |
1714 | ||
1715 | fail: | |
cfc4eb4c | 1716 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 LP |
1717 | } |
1718 | ||
1719 | static void socket_enter_start_pre(Socket *s) { | |
1720 | int r; | |
1721 | assert(s); | |
1722 | ||
5e94833f | 1723 | socket_unwatch_control_pid(s); |
a16e1123 | 1724 | s->control_command_id = SOCKET_EXEC_START_PRE; |
3900e5fd | 1725 | s->control_command = s->exec_command[SOCKET_EXEC_START_PRE]; |
a16e1123 | 1726 | |
3900e5fd | 1727 | if (s->control_command) { |
e821075a | 1728 | r = socket_spawn(s, s->control_command, &s->control_pid); |
3900e5fd | 1729 | if (r < 0) { |
31938a85 | 1730 | log_unit_warning_errno(UNIT(s)->id, r, "%s failed to run 'start-pre' task: %m", UNIT(s)->id); |
034c6ed7 | 1731 | goto fail; |
3900e5fd | 1732 | } |
034c6ed7 | 1733 | |
80876c20 LP |
1734 | socket_set_state(s, SOCKET_START_PRE); |
1735 | } else | |
3900e5fd | 1736 | socket_enter_start_chown(s); |
034c6ed7 LP |
1737 | |
1738 | return; | |
1739 | ||
1740 | fail: | |
cfc4eb4c | 1741 | socket_enter_dead(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 LP |
1742 | } |
1743 | ||
4f2d528d | 1744 | static void socket_enter_running(Socket *s, int cfd) { |
718db961 | 1745 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
034c6ed7 LP |
1746 | int r; |
1747 | ||
1748 | assert(s); | |
1749 | ||
ba3e67a7 LP |
1750 | /* We don't take connections anymore if we are supposed to |
1751 | * shut down anyway */ | |
31afa0a4 | 1752 | if (unit_stop_pending(UNIT(s))) { |
e821075a | 1753 | |
79008bdd | 1754 | log_unit_debug(UNIT(s)->id, "Suppressing connection request on %s since unit stop is scheduled.", UNIT(s)->id); |
5d909e3e | 1755 | |
7c610628 | 1756 | if (cfd >= 0) |
03e334a1 | 1757 | safe_close(cfd); |
7c610628 LP |
1758 | else { |
1759 | /* Flush all sockets by closing and reopening them */ | |
1760 | socket_close_fds(s); | |
1761 | ||
16ac4014 LP |
1762 | r = socket_open_fds(s); |
1763 | if (r < 0) { | |
31938a85 | 1764 | log_unit_warning_errno(UNIT(s)->id, r, "%s failed to listen on sockets: %m", UNIT(s)->id); |
16ac4014 LP |
1765 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); |
1766 | return; | |
1767 | } | |
1768 | ||
1a710b43 MS |
1769 | r = socket_watch_fds(s); |
1770 | if (r < 0) { | |
31938a85 | 1771 | log_unit_warning_errno(UNIT(s)->id, r, "%s failed to watch sockets: %m", UNIT(s)->id); |
cfc4eb4c | 1772 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); |
7c610628 LP |
1773 | } |
1774 | } | |
1775 | ||
ba3e67a7 LP |
1776 | return; |
1777 | } | |
1778 | ||
4f2d528d | 1779 | if (cfd < 0) { |
57020a3a | 1780 | Iterator i; |
e821075a | 1781 | Unit *other; |
f976f3f6 | 1782 | bool pending = false; |
f976f3f6 LP |
1783 | |
1784 | /* If there's already a start pending don't bother to | |
1785 | * do anything */ | |
e821075a LP |
1786 | SET_FOREACH(other, UNIT(s)->dependencies[UNIT_TRIGGERS], i) |
1787 | if (unit_active_or_pending(other)) { | |
57020a3a LP |
1788 | pending = true; |
1789 | break; | |
1790 | } | |
f976f3f6 | 1791 | |
1a710b43 | 1792 | if (!pending) { |
640ace4a | 1793 | if (!UNIT_ISSET(s->service)) { |
79008bdd | 1794 | log_unit_error(UNIT(s)->id, "%s: service to activate vanished, refusing activation.", UNIT(s)->id); |
640ace4a LP |
1795 | r = -ENOENT; |
1796 | goto fail; | |
1797 | } | |
1798 | ||
1a710b43 MS |
1799 | r = manager_add_job(UNIT(s)->manager, JOB_START, UNIT_DEREF(s->service), JOB_REPLACE, true, &error, NULL); |
1800 | if (r < 0) | |
f976f3f6 | 1801 | goto fail; |
1a710b43 | 1802 | } |
4f2d528d LP |
1803 | |
1804 | socket_set_state(s, SOCKET_RUNNING); | |
1805 | } else { | |
e55001eb | 1806 | _cleanup_free_ char *prefix = NULL, *instance = NULL, *name = NULL; |
b15bdda8 | 1807 | Service *service; |
4f2d528d | 1808 | |
6cf6bbc2 | 1809 | if (s->n_connections >= s->max_connections) { |
79008bdd | 1810 | log_unit_warning(UNIT(s)->id, "%s: Too many incoming connections (%u)", UNIT(s)->id, s->n_connections); |
03e334a1 | 1811 | safe_close(cfd); |
6cf6bbc2 LP |
1812 | return; |
1813 | } | |
1814 | ||
1a710b43 MS |
1815 | r = socket_instantiate_service(s); |
1816 | if (r < 0) | |
b15bdda8 LP |
1817 | goto fail; |
1818 | ||
1a710b43 MS |
1819 | r = instance_from_socket(cfd, s->n_accepted, &instance); |
1820 | if (r < 0) { | |
1821 | if (r != -ENOTCONN) | |
1822 | goto fail; | |
1823 | ||
1824 | /* ENOTCONN is legitimate if TCP RST was received. | |
1825 | * This connection is over, but the socket unit lives on. */ | |
03e334a1 | 1826 | safe_close(cfd); |
1a710b43 MS |
1827 | return; |
1828 | } | |
4f2d528d | 1829 | |
1a710b43 MS |
1830 | prefix = unit_name_to_prefix(UNIT(s)->id); |
1831 | if (!prefix) { | |
4f2d528d LP |
1832 | r = -ENOMEM; |
1833 | goto fail; | |
1834 | } | |
1835 | ||
1836 | name = unit_name_build(prefix, instance, ".service"); | |
b6dbbe1c | 1837 | if (!name) { |
4f2d528d | 1838 | r = -ENOMEM; |
b6dbbe1c LP |
1839 | goto fail; |
1840 | } | |
4f2d528d | 1841 | |
1a710b43 | 1842 | r = unit_add_name(UNIT_DEREF(s->service), name); |
e55001eb | 1843 | if (r < 0) |
4f2d528d | 1844 | goto fail; |
b15bdda8 | 1845 | |
57020a3a LP |
1846 | service = SERVICE(UNIT_DEREF(s->service)); |
1847 | unit_ref_unset(&s->service); | |
b15bdda8 | 1848 | s->n_accepted ++; |
4f2d528d | 1849 | |
1124fe6f | 1850 | UNIT(service)->no_gc = false; |
6c073082 | 1851 | |
b15bdda8 | 1852 | unit_choose_id(UNIT(service), name); |
b15bdda8 | 1853 | |
16115b0a | 1854 | r = service_set_socket_fd(service, cfd, s, s->selinux_context_from_net); |
1a710b43 | 1855 | if (r < 0) |
4f2d528d LP |
1856 | goto fail; |
1857 | ||
1858 | cfd = -1; | |
6cf6bbc2 LP |
1859 | s->n_connections ++; |
1860 | ||
1a710b43 MS |
1861 | r = manager_add_job(UNIT(s)->manager, JOB_START, UNIT(service), JOB_REPLACE, true, &error, NULL); |
1862 | if (r < 0) | |
4f2d528d | 1863 | goto fail; |
c4e2ceae LP |
1864 | |
1865 | /* Notify clients about changed counters */ | |
1866 | unit_add_to_dbus_queue(UNIT(s)); | |
4f2d528d | 1867 | } |
034c6ed7 | 1868 | |
034c6ed7 LP |
1869 | return; |
1870 | ||
1871 | fail: | |
79008bdd | 1872 | log_unit_warning(UNIT(s)->id, "%s failed to queue service startup job (Maybe the service file is missing or not a %s unit?): %s", |
e821075a | 1873 | UNIT(s)->id, cfd >= 0 ? "template" : "non-template", |
718db961 | 1874 | bus_error_message(&error, r)); |
e821075a | 1875 | |
60089004 | 1876 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); |
03e334a1 | 1877 | safe_close(cfd); |
034c6ed7 LP |
1878 | } |
1879 | ||
cfc4eb4c | 1880 | static void socket_run_next(Socket *s) { |
034c6ed7 LP |
1881 | int r; |
1882 | ||
1883 | assert(s); | |
1884 | assert(s->control_command); | |
1885 | assert(s->control_command->command_next); | |
1886 | ||
5e94833f LP |
1887 | socket_unwatch_control_pid(s); |
1888 | ||
034c6ed7 LP |
1889 | s->control_command = s->control_command->command_next; |
1890 | ||
e821075a LP |
1891 | r = socket_spawn(s, s->control_command, &s->control_pid); |
1892 | if (r < 0) | |
034c6ed7 LP |
1893 | goto fail; |
1894 | ||
1895 | return; | |
1896 | ||
1897 | fail: | |
31938a85 | 1898 | log_unit_warning_errno(UNIT(s)->id, r, "%s failed to run next task: %m", UNIT(s)->id); |
80876c20 LP |
1899 | |
1900 | if (s->state == SOCKET_START_POST) | |
cfc4eb4c | 1901 | socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 | 1902 | else if (s->state == SOCKET_STOP_POST) |
cfc4eb4c | 1903 | socket_enter_dead(s, SOCKET_FAILURE_RESOURCES); |
034c6ed7 | 1904 | else |
cfc4eb4c | 1905 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_RESOURCES); |
034c6ed7 LP |
1906 | } |
1907 | ||
87f0e418 LP |
1908 | static int socket_start(Unit *u) { |
1909 | Socket *s = SOCKET(u); | |
83c60c9f LP |
1910 | |
1911 | assert(s); | |
1912 | ||
034c6ed7 LP |
1913 | /* We cannot fulfill this request right now, try again later |
1914 | * please! */ | |
3900e5fd LP |
1915 | if (IN_SET(s->state, |
1916 | SOCKET_STOP_PRE, | |
1917 | SOCKET_STOP_PRE_SIGKILL, | |
1918 | SOCKET_STOP_PRE_SIGTERM, | |
1919 | SOCKET_STOP_POST, | |
1920 | SOCKET_FINAL_SIGTERM, | |
1921 | SOCKET_FINAL_SIGKILL)) | |
034c6ed7 LP |
1922 | return -EAGAIN; |
1923 | ||
a4152e3f | 1924 | /* Already on it! */ |
3900e5fd LP |
1925 | if (IN_SET(s->state, |
1926 | SOCKET_START_PRE, | |
1927 | SOCKET_START_CHOWN, | |
1928 | SOCKET_START_POST)) | |
034c6ed7 | 1929 | return 0; |
83c60c9f | 1930 | |
034c6ed7 | 1931 | /* Cannot run this without the service being around */ |
9444b1f2 | 1932 | if (UNIT_ISSET(s->service)) { |
57020a3a LP |
1933 | Service *service; |
1934 | ||
1935 | service = SERVICE(UNIT_DEREF(s->service)); | |
1936 | ||
1124fe6f | 1937 | if (UNIT(service)->load_state != UNIT_LOADED) { |
79008bdd | 1938 | log_unit_error(u->id, "Socket service %s not loaded, refusing.", UNIT(service)->id); |
4f2d528d | 1939 | return -ENOENT; |
4ac9236f | 1940 | } |
4f2d528d | 1941 | |
35b8ca3a | 1942 | /* If the service is already active we cannot start the |
4f2d528d | 1943 | * socket */ |
57020a3a LP |
1944 | if (service->state != SERVICE_DEAD && |
1945 | service->state != SERVICE_FAILED && | |
1946 | service->state != SERVICE_AUTO_RESTART) { | |
79008bdd | 1947 | log_unit_error(u->id, "Socket service %s already active, refusing.", UNIT(service)->id); |
4f2d528d | 1948 | return -EBUSY; |
4ac9236f | 1949 | } |
4f2d528d | 1950 | } |
e537352b | 1951 | |
fdf20a31 | 1952 | assert(s->state == SOCKET_DEAD || s->state == SOCKET_FAILED); |
83c60c9f | 1953 | |
cfc4eb4c | 1954 | s->result = SOCKET_SUCCESS; |
034c6ed7 | 1955 | socket_enter_start_pre(s); |
e821075a | 1956 | |
82a2b6bb | 1957 | return 1; |
034c6ed7 | 1958 | } |
83c60c9f | 1959 | |
87f0e418 LP |
1960 | static int socket_stop(Unit *u) { |
1961 | Socket *s = SOCKET(u); | |
034c6ed7 LP |
1962 | |
1963 | assert(s); | |
1964 | ||
e537352b | 1965 | /* Already on it */ |
3900e5fd LP |
1966 | if (IN_SET(s->state, |
1967 | SOCKET_STOP_PRE, | |
1968 | SOCKET_STOP_PRE_SIGTERM, | |
1969 | SOCKET_STOP_PRE_SIGKILL, | |
1970 | SOCKET_STOP_POST, | |
1971 | SOCKET_FINAL_SIGTERM, | |
1972 | SOCKET_FINAL_SIGKILL)) | |
e537352b LP |
1973 | return 0; |
1974 | ||
3f6c78dc LP |
1975 | /* If there's already something running we go directly into |
1976 | * kill mode. */ | |
3900e5fd LP |
1977 | if (IN_SET(s->state, |
1978 | SOCKET_START_PRE, | |
1979 | SOCKET_START_CHOWN, | |
1980 | SOCKET_START_POST)) { | |
cfc4eb4c | 1981 | socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, SOCKET_SUCCESS); |
3f6c78dc LP |
1982 | return -EAGAIN; |
1983 | } | |
1984 | ||
034c6ed7 | 1985 | assert(s->state == SOCKET_LISTENING || s->state == SOCKET_RUNNING); |
83c60c9f | 1986 | |
cfc4eb4c | 1987 | socket_enter_stop_pre(s, SOCKET_SUCCESS); |
82a2b6bb | 1988 | return 1; |
542563ba LP |
1989 | } |
1990 | ||
a16e1123 LP |
1991 | static int socket_serialize(Unit *u, FILE *f, FDSet *fds) { |
1992 | Socket *s = SOCKET(u); | |
1993 | SocketPort *p; | |
1994 | int r; | |
1995 | ||
1996 | assert(u); | |
1997 | assert(f); | |
1998 | assert(fds); | |
1999 | ||
2000 | unit_serialize_item(u, f, "state", socket_state_to_string(s->state)); | |
cfc4eb4c | 2001 | unit_serialize_item(u, f, "result", socket_result_to_string(s->result)); |
a16e1123 LP |
2002 | unit_serialize_item_format(u, f, "n-accepted", "%u", s->n_accepted); |
2003 | ||
2004 | if (s->control_pid > 0) | |
de0671ee | 2005 | unit_serialize_item_format(u, f, "control-pid", PID_FMT, s->control_pid); |
a16e1123 LP |
2006 | |
2007 | if (s->control_command_id >= 0) | |
2008 | unit_serialize_item(u, f, "control-command", socket_exec_command_to_string(s->control_command_id)); | |
2009 | ||
2010 | LIST_FOREACH(port, p, s->ports) { | |
2011 | int copy; | |
2012 | ||
2013 | if (p->fd < 0) | |
2014 | continue; | |
2015 | ||
613b411c LP |
2016 | copy = fdset_put_dup(fds, p->fd); |
2017 | if (copy < 0) | |
a16e1123 LP |
2018 | return copy; |
2019 | ||
2020 | if (p->type == SOCKET_SOCKET) { | |
613b411c | 2021 | _cleanup_free_ char *t = NULL; |
a16e1123 | 2022 | |
ee092817 LP |
2023 | r = socket_address_print(&p->address, &t); |
2024 | if (r < 0) | |
a16e1123 LP |
2025 | return r; |
2026 | ||
7a22745a LP |
2027 | if (socket_address_family(&p->address) == AF_NETLINK) |
2028 | unit_serialize_item_format(u, f, "netlink", "%i %s", copy, t); | |
2029 | else | |
2030 | unit_serialize_item_format(u, f, "socket", "%i %i %s", copy, p->address.type, t); | |
613b411c | 2031 | |
b0a3f2bc LP |
2032 | } else if (p->type == SOCKET_SPECIAL) |
2033 | unit_serialize_item_format(u, f, "special", "%i %s", copy, p->path); | |
ee092817 LP |
2034 | else if (p->type == SOCKET_MQUEUE) |
2035 | unit_serialize_item_format(u, f, "mqueue", "%i %s", copy, p->path); | |
b0a3f2bc | 2036 | else { |
a16e1123 LP |
2037 | assert(p->type == SOCKET_FIFO); |
2038 | unit_serialize_item_format(u, f, "fifo", "%i %s", copy, p->path); | |
2039 | } | |
2040 | } | |
2041 | ||
2042 | return 0; | |
2043 | } | |
2044 | ||
2045 | static int socket_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) { | |
2046 | Socket *s = SOCKET(u); | |
a16e1123 LP |
2047 | |
2048 | assert(u); | |
2049 | assert(key); | |
2050 | assert(value); | |
a16e1123 LP |
2051 | |
2052 | if (streq(key, "state")) { | |
2053 | SocketState state; | |
2054 | ||
ee092817 LP |
2055 | state = socket_state_from_string(value); |
2056 | if (state < 0) | |
79008bdd | 2057 | log_unit_debug(u->id, "Failed to parse state value %s", value); |
a16e1123 LP |
2058 | else |
2059 | s->deserialized_state = state; | |
cfc4eb4c LP |
2060 | } else if (streq(key, "result")) { |
2061 | SocketResult f; | |
a16e1123 | 2062 | |
cfc4eb4c LP |
2063 | f = socket_result_from_string(value); |
2064 | if (f < 0) | |
79008bdd | 2065 | log_unit_debug(u->id, "Failed to parse result value %s", value); |
cfc4eb4c LP |
2066 | else if (f != SOCKET_SUCCESS) |
2067 | s->result = f; | |
a16e1123 LP |
2068 | |
2069 | } else if (streq(key, "n-accepted")) { | |
2070 | unsigned k; | |
2071 | ||
e364ad06 | 2072 | if (safe_atou(value, &k) < 0) |
79008bdd | 2073 | log_unit_debug(u->id, "Failed to parse n-accepted value %s", value); |
a16e1123 LP |
2074 | else |
2075 | s->n_accepted += k; | |
2076 | } else if (streq(key, "control-pid")) { | |
5925dd3c | 2077 | pid_t pid; |
a16e1123 | 2078 | |
e364ad06 | 2079 | if (parse_pid(value, &pid) < 0) |
79008bdd | 2080 | log_unit_debug(u->id, "Failed to parse control-pid value %s", value); |
a16e1123 | 2081 | else |
5925dd3c | 2082 | s->control_pid = pid; |
a16e1123 LP |
2083 | } else if (streq(key, "control-command")) { |
2084 | SocketExecCommand id; | |
2085 | ||
66870f90 ZJS |
2086 | id = socket_exec_command_from_string(value); |
2087 | if (id < 0) | |
79008bdd | 2088 | log_unit_debug(u->id, "Failed to parse exec-command value %s", value); |
a16e1123 LP |
2089 | else { |
2090 | s->control_command_id = id; | |
2091 | s->control_command = s->exec_command[id]; | |
2092 | } | |
2093 | } else if (streq(key, "fifo")) { | |
2094 | int fd, skip = 0; | |
2095 | SocketPort *p; | |
2096 | ||
2097 | if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) | |
79008bdd | 2098 | log_unit_debug(u->id, "Failed to parse fifo value %s", value); |
a16e1123 LP |
2099 | else { |
2100 | ||
2101 | LIST_FOREACH(port, p, s->ports) | |
b0a3f2bc LP |
2102 | if (p->type == SOCKET_FIFO && |
2103 | streq_ptr(p->path, value+skip)) | |
2104 | break; | |
2105 | ||
2106 | if (p) { | |
03e334a1 | 2107 | safe_close(p->fd); |
b0a3f2bc LP |
2108 | p->fd = fdset_remove(fds, fd); |
2109 | } | |
2110 | } | |
2111 | ||
2112 | } else if (streq(key, "special")) { | |
2113 | int fd, skip = 0; | |
2114 | SocketPort *p; | |
2115 | ||
2116 | if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) | |
79008bdd | 2117 | log_unit_debug(u->id, "Failed to parse special value %s", value); |
b0a3f2bc LP |
2118 | else { |
2119 | ||
2120 | LIST_FOREACH(port, p, s->ports) | |
2121 | if (p->type == SOCKET_SPECIAL && | |
2122 | streq_ptr(p->path, value+skip)) | |
a16e1123 LP |
2123 | break; |
2124 | ||
2125 | if (p) { | |
03e334a1 | 2126 | safe_close(p->fd); |
a16e1123 LP |
2127 | p->fd = fdset_remove(fds, fd); |
2128 | } | |
2129 | } | |
2130 | ||
ee092817 LP |
2131 | } else if (streq(key, "mqueue")) { |
2132 | int fd, skip = 0; | |
2133 | SocketPort *p; | |
2134 | ||
2135 | if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) | |
79008bdd | 2136 | log_unit_debug(u->id, "Failed to parse mqueue value %s", value); |
ee092817 LP |
2137 | else { |
2138 | ||
2139 | LIST_FOREACH(port, p, s->ports) | |
2140 | if (p->type == SOCKET_MQUEUE && | |
2141 | streq_ptr(p->path, value+skip)) | |
2142 | break; | |
2143 | ||
2144 | if (p) { | |
03e334a1 | 2145 | safe_close(p->fd); |
ee092817 LP |
2146 | p->fd = fdset_remove(fds, fd); |
2147 | } | |
2148 | } | |
2149 | ||
a16e1123 | 2150 | } else if (streq(key, "socket")) { |
27ca8d7a | 2151 | int fd, type, skip = 0; |
a16e1123 LP |
2152 | SocketPort *p; |
2153 | ||
27ca8d7a | 2154 | if (sscanf(value, "%i %i %n", &fd, &type, &skip) < 2 || fd < 0 || type < 0 || !fdset_contains(fds, fd)) |
79008bdd | 2155 | log_unit_debug(u->id, "Failed to parse socket value %s", value); |
a16e1123 LP |
2156 | else { |
2157 | ||
2158 | LIST_FOREACH(port, p, s->ports) | |
27ca8d7a | 2159 | if (socket_address_is(&p->address, value+skip, type)) |
a16e1123 LP |
2160 | break; |
2161 | ||
2162 | if (p) { | |
03e334a1 | 2163 | safe_close(p->fd); |
a16e1123 LP |
2164 | p->fd = fdset_remove(fds, fd); |
2165 | } | |
2166 | } | |
2167 | ||
7a22745a LP |
2168 | } else if (streq(key, "netlink")) { |
2169 | int fd, skip = 0; | |
2170 | SocketPort *p; | |
2171 | ||
2172 | if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) | |
79008bdd | 2173 | log_unit_debug(u->id, "Failed to parse socket value %s", value); |
7a22745a LP |
2174 | else { |
2175 | ||
2176 | LIST_FOREACH(port, p, s->ports) | |
2177 | if (socket_address_is_netlink(&p->address, value+skip)) | |
2178 | break; | |
2179 | ||
2180 | if (p) { | |
03e334a1 | 2181 | safe_close(p->fd); |
7a22745a LP |
2182 | p->fd = fdset_remove(fds, fd); |
2183 | } | |
2184 | } | |
a16e1123 | 2185 | } else |
79008bdd | 2186 | log_unit_debug(UNIT(s)->id, "Unknown serialization key '%s'", key); |
a16e1123 LP |
2187 | |
2188 | return 0; | |
2189 | } | |
2190 | ||
01e10de3 LP |
2191 | static int socket_distribute_fds(Unit *u, FDSet *fds) { |
2192 | Socket *s = SOCKET(u); | |
2193 | SocketPort *p; | |
2194 | ||
2195 | assert(u); | |
2196 | ||
2197 | LIST_FOREACH(port, p, s->ports) { | |
2198 | Iterator i; | |
2199 | int fd; | |
2200 | ||
2201 | if (p->type != SOCKET_SOCKET) | |
2202 | continue; | |
2203 | ||
2204 | if (p->fd >= 0) | |
2205 | continue; | |
2206 | ||
2207 | FDSET_FOREACH(fd, fds, i) { | |
2208 | if (socket_address_matches_fd(&p->address, fd)) { | |
2209 | p->fd = fdset_remove(fds, fd); | |
2210 | s->deserialized_state = SOCKET_LISTENING; | |
2211 | break; | |
2212 | } | |
2213 | } | |
2214 | } | |
2215 | ||
2216 | return 0; | |
2217 | } | |
2218 | ||
44a6b1b6 | 2219 | _pure_ static UnitActiveState socket_active_state(Unit *u) { |
87f0e418 | 2220 | assert(u); |
5cb5a6ff | 2221 | |
acbb0225 | 2222 | return state_translation_table[SOCKET(u)->state]; |
5cb5a6ff LP |
2223 | } |
2224 | ||
44a6b1b6 | 2225 | _pure_ static const char *socket_sub_state_to_string(Unit *u) { |
10a94420 LP |
2226 | assert(u); |
2227 | ||
a16e1123 | 2228 | return socket_state_to_string(SOCKET(u)->state); |
10a94420 LP |
2229 | } |
2230 | ||
67419600 OS |
2231 | const char* socket_port_type_to_string(SocketPort *p) { |
2232 | ||
2233 | assert(p); | |
2234 | ||
2235 | switch (p->type) { | |
718db961 LP |
2236 | |
2237 | case SOCKET_SOCKET: | |
2238 | ||
2239 | switch (p->address.type) { | |
2240 | ||
2241 | case SOCK_STREAM: | |
2242 | return "Stream"; | |
2243 | ||
2244 | case SOCK_DGRAM: | |
2245 | return "Datagram"; | |
2246 | ||
2247 | case SOCK_SEQPACKET: | |
2248 | return "SequentialPacket"; | |
2249 | ||
2250 | case SOCK_RAW: | |
2251 | if (socket_address_family(&p->address) == AF_NETLINK) | |
2252 | return "Netlink"; | |
2253 | ||
2254 | default: | |
2255 | return NULL; | |
2256 | } | |
2257 | ||
2258 | case SOCKET_SPECIAL: | |
2259 | return "Special"; | |
2260 | ||
2261 | case SOCKET_MQUEUE: | |
2262 | return "MessageQueue"; | |
2263 | ||
2264 | case SOCKET_FIFO: | |
2265 | return "FIFO"; | |
2266 | ||
2267 | default: | |
2268 | return NULL; | |
67419600 OS |
2269 | } |
2270 | } | |
2271 | ||
44a6b1b6 | 2272 | _pure_ static bool socket_check_gc(Unit *u) { |
6cf6bbc2 LP |
2273 | Socket *s = SOCKET(u); |
2274 | ||
2275 | assert(u); | |
2276 | ||
2277 | return s->n_connections > 0; | |
2278 | } | |
2279 | ||
718db961 LP |
2280 | static int socket_dispatch_io(sd_event_source *source, int fd, uint32_t revents, void *userdata) { |
2281 | SocketPort *p = userdata; | |
4f2d528d | 2282 | int cfd = -1; |
9152c765 | 2283 | |
718db961 | 2284 | assert(p); |
8d567588 | 2285 | assert(fd >= 0); |
9152c765 | 2286 | |
718db961 LP |
2287 | if (p->socket->state != SOCKET_LISTENING) |
2288 | return 0; | |
871d7de4 | 2289 | |
79008bdd | 2290 | log_unit_debug(UNIT(p->socket)->id, "Incoming traffic on %s", UNIT(p->socket)->id); |
9152c765 | 2291 | |
718db961 | 2292 | if (revents != EPOLLIN) { |
641e01dc | 2293 | |
718db961 | 2294 | if (revents & EPOLLHUP) |
79008bdd | 2295 | log_unit_error(UNIT(p->socket)->id, "%s: Got POLLHUP on a listening socket. The service probably invoked shutdown() on it, and should better not do that.", |
718db961 | 2296 | UNIT(p->socket)->id); |
641e01dc | 2297 | else |
79008bdd | 2298 | log_unit_error(UNIT(p->socket)->id, "%s: Got unexpected poll event (0x%x) on socket.", |
718db961 | 2299 | UNIT(p->socket)->id, revents); |
641e01dc | 2300 | |
8d567588 | 2301 | goto fail; |
4f2d528d LP |
2302 | } |
2303 | ||
718db961 LP |
2304 | if (p->socket->accept && |
2305 | p->type == SOCKET_SOCKET && | |
2306 | socket_address_can_accept(&p->address)) { | |
2307 | ||
4f2d528d LP |
2308 | for (;;) { |
2309 | ||
b14eda96 LP |
2310 | cfd = accept4(fd, NULL, NULL, SOCK_NONBLOCK); |
2311 | if (cfd < 0) { | |
4f2d528d LP |
2312 | |
2313 | if (errno == EINTR) | |
2314 | continue; | |
2315 | ||
79008bdd | 2316 | log_unit_error(UNIT(p->socket)->id, |
66870f90 | 2317 | "Failed to accept socket: %m"); |
8d567588 | 2318 | goto fail; |
4f2d528d LP |
2319 | } |
2320 | ||
2321 | break; | |
2322 | } | |
4fd5948e | 2323 | |
718db961 | 2324 | socket_apply_socket_options(p->socket, cfd); |
4f2d528d | 2325 | } |
9152c765 | 2326 | |
718db961 LP |
2327 | socket_enter_running(p->socket, cfd); |
2328 | return 0; | |
8d567588 LP |
2329 | |
2330 | fail: | |
718db961 LP |
2331 | socket_enter_stop_pre(p->socket, SOCKET_FAILURE_RESOURCES); |
2332 | return 0; | |
9152c765 LP |
2333 | } |
2334 | ||
87f0e418 LP |
2335 | static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) { |
2336 | Socket *s = SOCKET(u); | |
cfc4eb4c | 2337 | SocketResult f; |
5cb5a6ff LP |
2338 | |
2339 | assert(s); | |
034c6ed7 | 2340 | assert(pid >= 0); |
5cb5a6ff | 2341 | |
8c47c732 LP |
2342 | if (pid != s->control_pid) |
2343 | return; | |
542563ba | 2344 | |
034c6ed7 LP |
2345 | s->control_pid = 0; |
2346 | ||
96342de6 | 2347 | if (is_clean_exit(code, status, NULL)) |
cfc4eb4c LP |
2348 | f = SOCKET_SUCCESS; |
2349 | else if (code == CLD_EXITED) | |
2350 | f = SOCKET_FAILURE_EXIT_CODE; | |
2351 | else if (code == CLD_KILLED) | |
2352 | f = SOCKET_FAILURE_SIGNAL; | |
2353 | else if (code == CLD_DUMPED) | |
2354 | f = SOCKET_FAILURE_CORE_DUMP; | |
2355 | else | |
a4152e3f | 2356 | assert_not_reached("Unknown sigchld code"); |
8c47c732 | 2357 | |
b708e7ce | 2358 | if (s->control_command) { |
6ea832a2 | 2359 | exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status); |
a16e1123 | 2360 | |
b708e7ce | 2361 | if (s->control_command->ignore) |
cfc4eb4c | 2362 | f = SOCKET_SUCCESS; |
b708e7ce LP |
2363 | } |
2364 | ||
79008bdd LP |
2365 | log_unit_full(u->id, |
2366 | f == SOCKET_SUCCESS ? LOG_DEBUG : LOG_NOTICE, | |
66870f90 ZJS |
2367 | "%s control process exited, code=%s status=%i", |
2368 | u->id, sigchld_code_to_string(code), status); | |
034c6ed7 | 2369 | |
cfc4eb4c LP |
2370 | if (f != SOCKET_SUCCESS) |
2371 | s->result = f; | |
2372 | ||
2373 | if (s->control_command && | |
2374 | s->control_command->command_next && | |
2375 | f == SOCKET_SUCCESS) { | |
2376 | ||
79008bdd | 2377 | log_unit_debug(u->id, |
66870f90 ZJS |
2378 | "%s running next command for state %s", |
2379 | u->id, 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 | |
79008bdd | 2388 | log_unit_debug(u->id, |
66870f90 ZJS |
2389 | "%s got final SIGCHLD for state %s", |
2390 | u->id, socket_state_to_string(s->state)); | |
acbb0225 | 2391 | |
034c6ed7 LP |
2392 | switch (s->state) { |
2393 | ||
2394 | case SOCKET_START_PRE: | |
cfc4eb4c | 2395 | if (f == SOCKET_SUCCESS) |
3900e5fd | 2396 | socket_enter_start_chown(s); |
034c6ed7 | 2397 | else |
cfc4eb4c | 2398 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, f); |
034c6ed7 LP |
2399 | break; |
2400 | ||
3900e5fd LP |
2401 | case SOCKET_START_CHOWN: |
2402 | if (f == SOCKET_SUCCESS) | |
2403 | socket_enter_start_post(s); | |
2404 | else | |
2405 | socket_enter_stop_pre(s, f); | |
2406 | break; | |
2407 | ||
034c6ed7 | 2408 | case SOCKET_START_POST: |
cfc4eb4c | 2409 | if (f == SOCKET_SUCCESS) |
e9af15c3 | 2410 | socket_enter_listening(s); |
034c6ed7 | 2411 | else |
cfc4eb4c | 2412 | socket_enter_stop_pre(s, f); |
034c6ed7 LP |
2413 | break; |
2414 | ||
2415 | case SOCKET_STOP_PRE: | |
2416 | case SOCKET_STOP_PRE_SIGTERM: | |
2417 | case SOCKET_STOP_PRE_SIGKILL: | |
cfc4eb4c | 2418 | socket_enter_stop_post(s, f); |
034c6ed7 LP |
2419 | break; |
2420 | ||
2421 | case SOCKET_STOP_POST: | |
80876c20 LP |
2422 | case SOCKET_FINAL_SIGTERM: |
2423 | case SOCKET_FINAL_SIGKILL: | |
cfc4eb4c | 2424 | socket_enter_dead(s, f); |
034c6ed7 LP |
2425 | break; |
2426 | ||
2427 | default: | |
2428 | assert_not_reached("Uh, control process died at wrong time."); | |
2429 | } | |
2430 | } | |
c4e2ceae LP |
2431 | |
2432 | /* Notify clients about changed exit status */ | |
2433 | unit_add_to_dbus_queue(u); | |
034c6ed7 | 2434 | } |
5cb5a6ff | 2435 | |
718db961 LP |
2436 | static int socket_dispatch_timer(sd_event_source *source, usec_t usec, void *userdata) { |
2437 | Socket *s = SOCKET(userdata); | |
5cb5a6ff | 2438 | |
034c6ed7 | 2439 | assert(s); |
718db961 | 2440 | assert(s->timer_event_source == source); |
034c6ed7 LP |
2441 | |
2442 | switch (s->state) { | |
2443 | ||
2444 | case SOCKET_START_PRE: | |
79008bdd | 2445 | log_unit_warning(UNIT(s)->id, "%s starting timed out. Terminating.", UNIT(s)->id); |
cfc4eb4c | 2446 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_TIMEOUT); |
da19d5c1 | 2447 | break; |
80876c20 | 2448 | |
3900e5fd | 2449 | case SOCKET_START_CHOWN: |
034c6ed7 | 2450 | case SOCKET_START_POST: |
79008bdd | 2451 | log_unit_warning(UNIT(s)->id, "%s starting timed out. Stopping.", UNIT(s)->id); |
cfc4eb4c | 2452 | socket_enter_stop_pre(s, SOCKET_FAILURE_TIMEOUT); |
034c6ed7 LP |
2453 | break; |
2454 | ||
2455 | case SOCKET_STOP_PRE: | |
79008bdd | 2456 | log_unit_warning(UNIT(s)->id, "%s stopping timed out. Terminating.", UNIT(s)->id); |
cfc4eb4c | 2457 | socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, SOCKET_FAILURE_TIMEOUT); |
034c6ed7 LP |
2458 | break; |
2459 | ||
2460 | case SOCKET_STOP_PRE_SIGTERM: | |
4819ff03 | 2461 | if (s->kill_context.send_sigkill) { |
79008bdd | 2462 | log_unit_warning(UNIT(s)->id, "%s stopping timed out. Killing.", UNIT(s)->id); |
cfc4eb4c | 2463 | socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, SOCKET_FAILURE_TIMEOUT); |
ba035df2 | 2464 | } else { |
79008bdd | 2465 | log_unit_warning(UNIT(s)->id, "%s stopping timed out. Skipping SIGKILL. Ignoring.", UNIT(s)->id); |
cfc4eb4c | 2466 | socket_enter_stop_post(s, SOCKET_FAILURE_TIMEOUT); |
ba035df2 | 2467 | } |
034c6ed7 LP |
2468 | break; |
2469 | ||
2470 | case SOCKET_STOP_PRE_SIGKILL: | |
79008bdd | 2471 | log_unit_warning(UNIT(s)->id, "%s still around after SIGKILL. Ignoring.", UNIT(s)->id); |
cfc4eb4c | 2472 | socket_enter_stop_post(s, SOCKET_FAILURE_TIMEOUT); |
034c6ed7 LP |
2473 | break; |
2474 | ||
2475 | case SOCKET_STOP_POST: | |
79008bdd | 2476 | log_unit_warning(UNIT(s)->id, "%s stopping timed out (2). Terminating.", UNIT(s)->id); |
cfc4eb4c | 2477 | socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_TIMEOUT); |
034c6ed7 LP |
2478 | break; |
2479 | ||
80876c20 | 2480 | case SOCKET_FINAL_SIGTERM: |
4819ff03 | 2481 | if (s->kill_context.send_sigkill) { |
79008bdd | 2482 | log_unit_warning(UNIT(s)->id, "%s stopping timed out (2). Killing.", UNIT(s)->id); |
cfc4eb4c | 2483 | socket_enter_signal(s, SOCKET_FINAL_SIGKILL, SOCKET_FAILURE_TIMEOUT); |
ba035df2 | 2484 | } else { |
79008bdd | 2485 | log_unit_warning(UNIT(s)->id, "%s stopping timed out (2). Skipping SIGKILL. Ignoring.", UNIT(s)->id); |
cfc4eb4c | 2486 | socket_enter_dead(s, SOCKET_FAILURE_TIMEOUT); |
ba035df2 | 2487 | } |
034c6ed7 LP |
2488 | break; |
2489 | ||
80876c20 | 2490 | case SOCKET_FINAL_SIGKILL: |
79008bdd | 2491 | log_unit_warning(UNIT(s)->id, "%s still around after SIGKILL (2). Entering failed mode.", UNIT(s)->id); |
cfc4eb4c | 2492 | socket_enter_dead(s, SOCKET_FAILURE_TIMEOUT); |
034c6ed7 LP |
2493 | break; |
2494 | ||
2495 | default: | |
2496 | assert_not_reached("Timeout at wrong time."); | |
2497 | } | |
718db961 LP |
2498 | |
2499 | return 0; | |
5cb5a6ff LP |
2500 | } |
2501 | ||
44d8db9e LP |
2502 | int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds) { |
2503 | int *rfds; | |
2504 | unsigned rn_fds, k; | |
2505 | SocketPort *p; | |
2506 | ||
2507 | assert(s); | |
2508 | assert(fds); | |
2509 | assert(n_fds); | |
2510 | ||
2511 | /* Called from the service code for requesting our fds */ | |
2512 | ||
2513 | rn_fds = 0; | |
2514 | LIST_FOREACH(port, p, s->ports) | |
2515 | if (p->fd >= 0) | |
2516 | rn_fds++; | |
2517 | ||
de3756ab LP |
2518 | if (rn_fds <= 0) { |
2519 | *fds = NULL; | |
2520 | *n_fds = 0; | |
2521 | return 0; | |
2522 | } | |
2523 | ||
e364ad06 | 2524 | if (!(rfds = new(int, rn_fds))) |
44d8db9e LP |
2525 | return -ENOMEM; |
2526 | ||
2527 | k = 0; | |
2528 | LIST_FOREACH(port, p, s->ports) | |
2529 | if (p->fd >= 0) | |
2530 | rfds[k++] = p->fd; | |
2531 | ||
2532 | assert(k == rn_fds); | |
2533 | ||
2534 | *fds = rfds; | |
2535 | *n_fds = rn_fds; | |
2536 | ||
2537 | return 0; | |
2538 | } | |
2539 | ||
e821075a LP |
2540 | static void socket_reset_failed(Unit *u) { |
2541 | Socket *s = SOCKET(u); | |
2542 | ||
2543 | assert(s); | |
2544 | ||
2545 | if (s->state == SOCKET_FAILED) | |
2546 | socket_set_state(s, SOCKET_DEAD); | |
2547 | ||
2548 | s->result = SOCKET_SUCCESS; | |
2549 | } | |
2550 | ||
d137a488 | 2551 | static void socket_notify_service_dead(Socket *s, bool failed_permanent) { |
ceee3d82 LP |
2552 | assert(s); |
2553 | ||
6cf6bbc2 LP |
2554 | /* The service is dead. Dang! |
2555 | * | |
2556 | * This is strictly for one-instance-for-all-connections | |
2557 | * services. */ | |
ceee3d82 LP |
2558 | |
2559 | if (s->state == SOCKET_RUNNING) { | |
79008bdd | 2560 | log_unit_debug(UNIT(s)->id, "%s got notified about service death (failed permanently: %s)", UNIT(s)->id, yes_no(failed_permanent)); |
6bda96a0 LP |
2561 | if (failed_permanent) |
2562 | socket_enter_stop_pre(s, SOCKET_FAILURE_SERVICE_FAILED_PERMANENT); | |
c2f34808 MS |
2563 | else |
2564 | socket_enter_listening(s); | |
ceee3d82 LP |
2565 | } |
2566 | } | |
2567 | ||
6cf6bbc2 LP |
2568 | void socket_connection_unref(Socket *s) { |
2569 | assert(s); | |
2570 | ||
2571 | /* The service is dead. Yay! | |
2572 | * | |
35b8ca3a | 2573 | * This is strictly for one-instance-per-connection |
6cf6bbc2 LP |
2574 | * services. */ |
2575 | ||
2576 | assert(s->n_connections > 0); | |
2577 | s->n_connections--; | |
2578 | ||
79008bdd | 2579 | log_unit_debug(UNIT(s)->id, "%s: One connection closed, %u left.", UNIT(s)->id, s->n_connections); |
5632e374 LP |
2580 | } |
2581 | ||
d137a488 UTL |
2582 | static void socket_trigger_notify(Unit *u, Unit *other) { |
2583 | Socket *s = SOCKET(u); | |
e821075a | 2584 | Service *se; |
d137a488 UTL |
2585 | |
2586 | assert(u); | |
2587 | assert(other); | |
2588 | ||
2589 | /* Don't propagate state changes from the service if we are | |
2590 | already down or accepting connections */ | |
2591 | if ((s->state != SOCKET_RUNNING && | |
2592 | s->state != SOCKET_LISTENING) || | |
2593 | s->accept) | |
2594 | return; | |
2595 | ||
2596 | if (other->load_state != UNIT_LOADED || | |
2597 | other->type != UNIT_SERVICE) | |
2598 | return; | |
2599 | ||
e821075a LP |
2600 | se = SERVICE(other); |
2601 | ||
d137a488 UTL |
2602 | if (se->state == SERVICE_FAILED) |
2603 | socket_notify_service_dead(s, se->result == SERVICE_FAILURE_START_LIMIT); | |
2604 | ||
2605 | if (se->state == SERVICE_DEAD || | |
2606 | se->state == SERVICE_STOP || | |
2607 | se->state == SERVICE_STOP_SIGTERM || | |
2608 | se->state == SERVICE_STOP_SIGKILL || | |
2609 | se->state == SERVICE_STOP_POST || | |
2610 | se->state == SERVICE_FINAL_SIGTERM || | |
2611 | se->state == SERVICE_FINAL_SIGKILL || | |
2612 | se->state == SERVICE_AUTO_RESTART) | |
2613 | socket_notify_service_dead(s, false); | |
2614 | ||
2615 | if (se->state == SERVICE_RUNNING) | |
2616 | socket_set_state(s, SOCKET_RUNNING); | |
2617 | } | |
2618 | ||
718db961 | 2619 | static int socket_kill(Unit *u, KillWho who, int signo, sd_bus_error *error) { |
814cc562 | 2620 | return unit_kill_common(u, who, signo, -1, SOCKET(u)->control_pid, error); |
8a0867d6 LP |
2621 | } |
2622 | ||
68db7a3b ZJS |
2623 | static int socket_get_timeout(Unit *u, uint64_t *timeout) { |
2624 | Socket *s = SOCKET(u); | |
2625 | int r; | |
2626 | ||
2627 | if (!s->timer_event_source) | |
2628 | return 0; | |
2629 | ||
2630 | r = sd_event_source_get_time(s->timer_event_source, timeout); | |
2631 | if (r < 0) | |
2632 | return r; | |
2633 | ||
2634 | return 1; | |
2635 | } | |
2636 | ||
a16e1123 LP |
2637 | static const char* const socket_state_table[_SOCKET_STATE_MAX] = { |
2638 | [SOCKET_DEAD] = "dead", | |
2639 | [SOCKET_START_PRE] = "start-pre", | |
3900e5fd | 2640 | [SOCKET_START_CHOWN] = "start-chown", |
a16e1123 LP |
2641 | [SOCKET_START_POST] = "start-post", |
2642 | [SOCKET_LISTENING] = "listening", | |
2643 | [SOCKET_RUNNING] = "running", | |
2644 | [SOCKET_STOP_PRE] = "stop-pre", | |
2645 | [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm", | |
2646 | [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill", | |
2647 | [SOCKET_STOP_POST] = "stop-post", | |
2648 | [SOCKET_FINAL_SIGTERM] = "final-sigterm", | |
2649 | [SOCKET_FINAL_SIGKILL] = "final-sigkill", | |
fdf20a31 | 2650 | [SOCKET_FAILED] = "failed" |
a16e1123 LP |
2651 | }; |
2652 | ||
2653 | DEFINE_STRING_TABLE_LOOKUP(socket_state, SocketState); | |
2654 | ||
2655 | static const char* const socket_exec_command_table[_SOCKET_EXEC_COMMAND_MAX] = { | |
2656 | [SOCKET_EXEC_START_PRE] = "StartPre", | |
3900e5fd | 2657 | [SOCKET_EXEC_START_CHOWN] = "StartChown", |
a16e1123 LP |
2658 | [SOCKET_EXEC_START_POST] = "StartPost", |
2659 | [SOCKET_EXEC_STOP_PRE] = "StopPre", | |
2660 | [SOCKET_EXEC_STOP_POST] = "StopPost" | |
2661 | }; | |
2662 | ||
2663 | DEFINE_STRING_TABLE_LOOKUP(socket_exec_command, SocketExecCommand); | |
2664 | ||
cfc4eb4c LP |
2665 | static const char* const socket_result_table[_SOCKET_RESULT_MAX] = { |
2666 | [SOCKET_SUCCESS] = "success", | |
2667 | [SOCKET_FAILURE_RESOURCES] = "resources", | |
2668 | [SOCKET_FAILURE_TIMEOUT] = "timeout", | |
2669 | [SOCKET_FAILURE_EXIT_CODE] = "exit-code", | |
2670 | [SOCKET_FAILURE_SIGNAL] = "signal", | |
c2f34808 | 2671 | [SOCKET_FAILURE_CORE_DUMP] = "core-dump", |
6bda96a0 | 2672 | [SOCKET_FAILURE_SERVICE_FAILED_PERMANENT] = "service-failed-permanent" |
cfc4eb4c LP |
2673 | }; |
2674 | ||
2675 | DEFINE_STRING_TABLE_LOOKUP(socket_result, SocketResult); | |
2676 | ||
87f0e418 | 2677 | const UnitVTable socket_vtable = { |
7d17cfbc | 2678 | .object_size = sizeof(Socket), |
718db961 LP |
2679 | .exec_context_offset = offsetof(Socket, exec_context), |
2680 | .cgroup_context_offset = offsetof(Socket, cgroup_context), | |
2681 | .kill_context_offset = offsetof(Socket, kill_context), | |
613b411c | 2682 | .exec_runtime_offset = offsetof(Socket, exec_runtime), |
3ef63c31 | 2683 | |
f975e971 LP |
2684 | .sections = |
2685 | "Unit\0" | |
2686 | "Socket\0" | |
2687 | "Install\0", | |
4ad49000 | 2688 | .private_section = "Socket", |
71645aca | 2689 | |
034c6ed7 LP |
2690 | .init = socket_init, |
2691 | .done = socket_done, | |
a16e1123 LP |
2692 | .load = socket_load, |
2693 | ||
2694 | .coldplug = socket_coldplug, | |
034c6ed7 | 2695 | |
5cb5a6ff LP |
2696 | .dump = socket_dump, |
2697 | ||
542563ba LP |
2698 | .start = socket_start, |
2699 | .stop = socket_stop, | |
5cb5a6ff | 2700 | |
718db961 LP |
2701 | .kill = socket_kill, |
2702 | ||
68db7a3b ZJS |
2703 | .get_timeout = socket_get_timeout, |
2704 | ||
a16e1123 LP |
2705 | .serialize = socket_serialize, |
2706 | .deserialize_item = socket_deserialize_item, | |
01e10de3 | 2707 | .distribute_fds = socket_distribute_fds, |
a16e1123 | 2708 | |
5cb5a6ff | 2709 | .active_state = socket_active_state, |
10a94420 | 2710 | .sub_state_to_string = socket_sub_state_to_string, |
5cb5a6ff | 2711 | |
6cf6bbc2 LP |
2712 | .check_gc = socket_check_gc, |
2713 | ||
034c6ed7 | 2714 | .sigchld_event = socket_sigchld_event, |
4139c1b2 | 2715 | |
d137a488 UTL |
2716 | .trigger_notify = socket_trigger_notify, |
2717 | ||
fdf20a31 | 2718 | .reset_failed = socket_reset_failed, |
5632e374 | 2719 | |
c4e2ceae | 2720 | .bus_interface = "org.freedesktop.systemd1.Socket", |
718db961 | 2721 | .bus_vtable = bus_socket_vtable, |
74c964d3 LP |
2722 | .bus_set_property = bus_socket_set_property, |
2723 | .bus_commit_properties = bus_socket_commit_properties, | |
c6918296 MS |
2724 | |
2725 | .status_message_formats = { | |
2726 | /*.starting_stopping = { | |
2727 | [0] = "Starting socket %s...", | |
2728 | [1] = "Stopping socket %s...", | |
2729 | },*/ | |
2730 | .finished_start_job = { | |
2731 | [JOB_DONE] = "Listening on %s.", | |
2732 | [JOB_FAILED] = "Failed to listen on %s.", | |
2733 | [JOB_DEPENDENCY] = "Dependency failed for %s.", | |
2734 | [JOB_TIMEOUT] = "Timed out starting %s.", | |
2735 | }, | |
2736 | .finished_stop_job = { | |
2737 | [JOB_DONE] = "Closed %s.", | |
2738 | [JOB_FAILED] = "Failed stopping %s.", | |
2739 | [JOB_TIMEOUT] = "Timed out stopping %s.", | |
2740 | }, | |
2741 | }, | |
5cb5a6ff | 2742 | }; |