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Commit | Line | Data |
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a45b9fca LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
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 | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
4871690d | 22 | #include <stddef.h> |
07630cea | 23 | #include <unistd.h> |
a45b9fca LP |
24 | |
25 | #ifdef HAVE_SELINUX | |
26 | #include <selinux/selinux.h> | |
27 | #endif | |
28 | ||
13790add | 29 | #include "sd-daemon.h" |
4f5dd394 LP |
30 | #include "sd-event.h" |
31 | ||
a0956174 | 32 | #include "dirent-util.h" |
4f5dd394 | 33 | #include "escape.h" |
3ffd4af2 | 34 | #include "fd-util.h" |
13790add | 35 | #include "fileio.h" |
4f5dd394 LP |
36 | #include "journald-console.h" |
37 | #include "journald-kmsg.h" | |
d025f1e4 | 38 | #include "journald-server.h" |
3ffd4af2 | 39 | #include "journald-stream.h" |
a45b9fca | 40 | #include "journald-syslog.h" |
40b71e89 | 41 | #include "journald-wall.h" |
4f5dd394 | 42 | #include "mkdir.h" |
6bedfcbb | 43 | #include "parse-util.h" |
4f5dd394 LP |
44 | #include "selinux-util.h" |
45 | #include "socket-util.h" | |
07630cea | 46 | #include "string-util.h" |
a45b9fca LP |
47 | |
48 | #define STDOUT_STREAMS_MAX 4096 | |
49 | ||
50 | typedef enum StdoutStreamState { | |
51 | STDOUT_STREAM_IDENTIFIER, | |
52 | STDOUT_STREAM_UNIT_ID, | |
53 | STDOUT_STREAM_PRIORITY, | |
54 | STDOUT_STREAM_LEVEL_PREFIX, | |
55 | STDOUT_STREAM_FORWARD_TO_SYSLOG, | |
56 | STDOUT_STREAM_FORWARD_TO_KMSG, | |
57 | STDOUT_STREAM_FORWARD_TO_CONSOLE, | |
58 | STDOUT_STREAM_RUNNING | |
59 | } StdoutStreamState; | |
60 | ||
61 | struct StdoutStream { | |
62 | Server *server; | |
63 | StdoutStreamState state; | |
64 | ||
65 | int fd; | |
66 | ||
67 | struct ucred ucred; | |
2de56f70 | 68 | char *label; |
a45b9fca LP |
69 | char *identifier; |
70 | char *unit_id; | |
71 | int priority; | |
72 | bool level_prefix:1; | |
73 | bool forward_to_syslog:1; | |
74 | bool forward_to_kmsg:1; | |
75 | bool forward_to_console:1; | |
76 | ||
13790add LP |
77 | bool fdstore:1; |
78 | ||
a45b9fca LP |
79 | char buffer[LINE_MAX+1]; |
80 | size_t length; | |
81 | ||
f9a810be LP |
82 | sd_event_source *event_source; |
83 | ||
13790add LP |
84 | char *state_file; |
85 | ||
a45b9fca LP |
86 | LIST_FIELDS(StdoutStream, stdout_stream); |
87 | }; | |
88 | ||
13790add LP |
89 | void stdout_stream_free(StdoutStream *s) { |
90 | if (!s) | |
91 | return; | |
92 | ||
93 | if (s->server) { | |
94 | assert(s->server->n_stdout_streams > 0); | |
95 | s->server->n_stdout_streams --; | |
96 | LIST_REMOVE(stdout_stream, s->server->stdout_streams, s); | |
97 | } | |
98 | ||
99 | if (s->event_source) { | |
100 | sd_event_source_set_enabled(s->event_source, SD_EVENT_OFF); | |
101 | s->event_source = sd_event_source_unref(s->event_source); | |
102 | } | |
103 | ||
104 | safe_close(s->fd); | |
2de56f70 | 105 | free(s->label); |
13790add LP |
106 | free(s->identifier); |
107 | free(s->unit_id); | |
108 | free(s->state_file); | |
109 | ||
110 | free(s); | |
111 | } | |
112 | ||
113 | DEFINE_TRIVIAL_CLEANUP_FUNC(StdoutStream*, stdout_stream_free); | |
114 | ||
115 | static void stdout_stream_destroy(StdoutStream *s) { | |
116 | if (!s) | |
117 | return; | |
118 | ||
119 | if (s->state_file) | |
120 | unlink(s->state_file); | |
121 | ||
122 | stdout_stream_free(s); | |
123 | } | |
124 | ||
125 | static int stdout_stream_save(StdoutStream *s) { | |
126 | _cleanup_free_ char *temp_path = NULL; | |
127 | _cleanup_fclose_ FILE *f = NULL; | |
128 | int r; | |
129 | ||
130 | assert(s); | |
131 | ||
132 | if (s->state != STDOUT_STREAM_RUNNING) | |
133 | return 0; | |
134 | ||
135 | if (!s->state_file) { | |
136 | struct stat st; | |
137 | ||
138 | r = fstat(s->fd, &st); | |
139 | if (r < 0) | |
140 | return log_warning_errno(errno, "Failed to stat connected stream: %m"); | |
141 | ||
142 | /* We use device and inode numbers as identifier for the stream */ | |
143 | if (asprintf(&s->state_file, "/run/systemd/journal/streams/%lu:%lu", (unsigned long) st.st_dev, (unsigned long) st.st_ino) < 0) | |
144 | return log_oom(); | |
145 | } | |
146 | ||
147 | mkdir_p("/run/systemd/journal/streams", 0755); | |
148 | ||
149 | r = fopen_temporary(s->state_file, &f, &temp_path); | |
150 | if (r < 0) | |
dacd6cee | 151 | goto fail; |
13790add LP |
152 | |
153 | fprintf(f, | |
154 | "# This is private data. Do not parse\n" | |
155 | "PRIORITY=%i\n" | |
156 | "LEVEL_PREFIX=%i\n" | |
157 | "FORWARD_TO_SYSLOG=%i\n" | |
158 | "FORWARD_TO_KMSG=%i\n" | |
159 | "FORWARD_TO_CONSOLE=%i\n", | |
160 | s->priority, | |
161 | s->level_prefix, | |
162 | s->forward_to_syslog, | |
163 | s->forward_to_kmsg, | |
164 | s->forward_to_console); | |
165 | ||
166 | if (!isempty(s->identifier)) { | |
167 | _cleanup_free_ char *escaped; | |
168 | ||
169 | escaped = cescape(s->identifier); | |
170 | if (!escaped) { | |
171 | r = -ENOMEM; | |
dacd6cee | 172 | goto fail; |
13790add LP |
173 | } |
174 | ||
175 | fprintf(f, "IDENTIFIER=%s\n", escaped); | |
176 | } | |
177 | ||
178 | if (!isempty(s->unit_id)) { | |
179 | _cleanup_free_ char *escaped; | |
180 | ||
181 | escaped = cescape(s->unit_id); | |
182 | if (!escaped) { | |
183 | r = -ENOMEM; | |
dacd6cee | 184 | goto fail; |
13790add LP |
185 | } |
186 | ||
187 | fprintf(f, "UNIT=%s\n", escaped); | |
188 | } | |
189 | ||
190 | r = fflush_and_check(f); | |
191 | if (r < 0) | |
dacd6cee | 192 | goto fail; |
13790add LP |
193 | |
194 | if (rename(temp_path, s->state_file) < 0) { | |
195 | r = -errno; | |
dacd6cee | 196 | goto fail; |
13790add LP |
197 | } |
198 | ||
13790add LP |
199 | /* Store the connection fd in PID 1, so that we get it passed |
200 | * in again on next start */ | |
201 | if (!s->fdstore) { | |
202 | sd_pid_notify_with_fds(0, false, "FDSTORE=1", &s->fd, 1); | |
203 | s->fdstore = true; | |
204 | } | |
205 | ||
dacd6cee | 206 | return 0; |
13790add | 207 | |
dacd6cee LP |
208 | fail: |
209 | (void) unlink(s->state_file); | |
210 | ||
211 | if (temp_path) | |
212 | (void) unlink(temp_path); | |
13790add | 213 | |
dacd6cee | 214 | return log_error_errno(r, "Failed to save stream data %s: %m", s->state_file); |
13790add LP |
215 | } |
216 | ||
a45b9fca LP |
217 | static int stdout_stream_log(StdoutStream *s, const char *p) { |
218 | struct iovec iovec[N_IOVEC_META_FIELDS + 5]; | |
a45b9fca | 219 | int priority; |
e3bfb7be | 220 | char syslog_priority[] = "PRIORITY=\0"; |
5ffa8c81 | 221 | char syslog_facility[sizeof("SYSLOG_FACILITY=")-1 + DECIMAL_STR_MAX(int) + 1]; |
e3bfb7be ZJS |
222 | _cleanup_free_ char *message = NULL, *syslog_identifier = NULL; |
223 | unsigned n = 0; | |
2de56f70 | 224 | size_t label_len; |
a45b9fca LP |
225 | |
226 | assert(s); | |
227 | assert(p); | |
228 | ||
229 | if (isempty(p)) | |
230 | return 0; | |
231 | ||
232 | priority = s->priority; | |
233 | ||
234 | if (s->level_prefix) | |
e3bfb7be | 235 | syslog_parse_priority(&p, &priority, false); |
a45b9fca LP |
236 | |
237 | if (s->forward_to_syslog || s->server->forward_to_syslog) | |
238 | server_forward_syslog(s->server, syslog_fixup_facility(priority), s->identifier, p, &s->ucred, NULL); | |
239 | ||
240 | if (s->forward_to_kmsg || s->server->forward_to_kmsg) | |
241 | server_forward_kmsg(s->server, priority, s->identifier, p, &s->ucred); | |
242 | ||
243 | if (s->forward_to_console || s->server->forward_to_console) | |
244 | server_forward_console(s->server, priority, s->identifier, p, &s->ucred); | |
245 | ||
40b71e89 ST |
246 | if (s->server->forward_to_wall) |
247 | server_forward_wall(s->server, priority, s->identifier, p, &s->ucred); | |
248 | ||
a45b9fca LP |
249 | IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=stdout"); |
250 | ||
e3bfb7be ZJS |
251 | syslog_priority[strlen("PRIORITY=")] = '0' + LOG_PRI(priority); |
252 | IOVEC_SET_STRING(iovec[n++], syslog_priority); | |
a45b9fca | 253 | |
e3bfb7be | 254 | if (priority & LOG_FACMASK) { |
5ffa8c81 | 255 | xsprintf(syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)); |
e3bfb7be ZJS |
256 | IOVEC_SET_STRING(iovec[n++], syslog_facility); |
257 | } | |
a45b9fca LP |
258 | |
259 | if (s->identifier) { | |
260 | syslog_identifier = strappend("SYSLOG_IDENTIFIER=", s->identifier); | |
261 | if (syslog_identifier) | |
262 | IOVEC_SET_STRING(iovec[n++], syslog_identifier); | |
263 | } | |
264 | ||
265 | message = strappend("MESSAGE=", p); | |
266 | if (message) | |
267 | IOVEC_SET_STRING(iovec[n++], message); | |
268 | ||
2de56f70 ZJS |
269 | label_len = s->label ? strlen(s->label) : 0; |
270 | server_dispatch_message(s->server, iovec, n, ELEMENTSOF(iovec), &s->ucred, NULL, s->label, label_len, s->unit_id, priority, 0); | |
a45b9fca LP |
271 | return 0; |
272 | } | |
273 | ||
274 | static int stdout_stream_line(StdoutStream *s, char *p) { | |
275 | int r; | |
276 | ||
277 | assert(s); | |
278 | assert(p); | |
279 | ||
280 | p = strstrip(p); | |
281 | ||
282 | switch (s->state) { | |
283 | ||
284 | case STDOUT_STREAM_IDENTIFIER: | |
285 | if (isempty(p)) | |
286 | s->identifier = NULL; | |
287 | else { | |
288 | s->identifier = strdup(p); | |
289 | if (!s->identifier) | |
290 | return log_oom(); | |
291 | } | |
292 | ||
293 | s->state = STDOUT_STREAM_UNIT_ID; | |
294 | return 0; | |
295 | ||
296 | case STDOUT_STREAM_UNIT_ID: | |
297 | if (s->ucred.uid == 0) { | |
298 | if (isempty(p)) | |
299 | s->unit_id = NULL; | |
300 | else { | |
301 | s->unit_id = strdup(p); | |
302 | if (!s->unit_id) | |
303 | return log_oom(); | |
304 | } | |
305 | } | |
306 | ||
307 | s->state = STDOUT_STREAM_PRIORITY; | |
308 | return 0; | |
309 | ||
310 | case STDOUT_STREAM_PRIORITY: | |
311 | r = safe_atoi(p, &s->priority); | |
41891700 | 312 | if (r < 0 || s->priority < 0 || s->priority > 999) { |
a45b9fca LP |
313 | log_warning("Failed to parse log priority line."); |
314 | return -EINVAL; | |
315 | } | |
316 | ||
317 | s->state = STDOUT_STREAM_LEVEL_PREFIX; | |
318 | return 0; | |
319 | ||
320 | case STDOUT_STREAM_LEVEL_PREFIX: | |
321 | r = parse_boolean(p); | |
322 | if (r < 0) { | |
323 | log_warning("Failed to parse level prefix line."); | |
324 | return -EINVAL; | |
325 | } | |
326 | ||
327 | s->level_prefix = !!r; | |
328 | s->state = STDOUT_STREAM_FORWARD_TO_SYSLOG; | |
329 | return 0; | |
330 | ||
331 | case STDOUT_STREAM_FORWARD_TO_SYSLOG: | |
332 | r = parse_boolean(p); | |
333 | if (r < 0) { | |
334 | log_warning("Failed to parse forward to syslog line."); | |
335 | return -EINVAL; | |
336 | } | |
337 | ||
338 | s->forward_to_syslog = !!r; | |
339 | s->state = STDOUT_STREAM_FORWARD_TO_KMSG; | |
340 | return 0; | |
341 | ||
342 | case STDOUT_STREAM_FORWARD_TO_KMSG: | |
343 | r = parse_boolean(p); | |
344 | if (r < 0) { | |
345 | log_warning("Failed to parse copy to kmsg line."); | |
346 | return -EINVAL; | |
347 | } | |
348 | ||
349 | s->forward_to_kmsg = !!r; | |
350 | s->state = STDOUT_STREAM_FORWARD_TO_CONSOLE; | |
351 | return 0; | |
352 | ||
353 | case STDOUT_STREAM_FORWARD_TO_CONSOLE: | |
354 | r = parse_boolean(p); | |
355 | if (r < 0) { | |
356 | log_warning("Failed to parse copy to console line."); | |
357 | return -EINVAL; | |
358 | } | |
359 | ||
360 | s->forward_to_console = !!r; | |
361 | s->state = STDOUT_STREAM_RUNNING; | |
13790add LP |
362 | |
363 | /* Try to save the stream, so that journald can be restarted and we can recover */ | |
364 | (void) stdout_stream_save(s); | |
a45b9fca LP |
365 | return 0; |
366 | ||
367 | case STDOUT_STREAM_RUNNING: | |
368 | return stdout_stream_log(s, p); | |
369 | } | |
370 | ||
371 | assert_not_reached("Unknown stream state"); | |
372 | } | |
373 | ||
374 | static int stdout_stream_scan(StdoutStream *s, bool force_flush) { | |
375 | char *p; | |
376 | size_t remaining; | |
377 | int r; | |
378 | ||
379 | assert(s); | |
380 | ||
381 | p = s->buffer; | |
382 | remaining = s->length; | |
383 | for (;;) { | |
384 | char *end; | |
385 | size_t skip; | |
386 | ||
387 | end = memchr(p, '\n', remaining); | |
388 | if (end) | |
389 | skip = end - p + 1; | |
390 | else if (remaining >= sizeof(s->buffer) - 1) { | |
391 | end = p + sizeof(s->buffer) - 1; | |
392 | skip = remaining; | |
393 | } else | |
394 | break; | |
395 | ||
396 | *end = 0; | |
397 | ||
398 | r = stdout_stream_line(s, p); | |
399 | if (r < 0) | |
400 | return r; | |
401 | ||
402 | remaining -= skip; | |
403 | p += skip; | |
404 | } | |
405 | ||
406 | if (force_flush && remaining > 0) { | |
407 | p[remaining] = 0; | |
408 | r = stdout_stream_line(s, p); | |
409 | if (r < 0) | |
410 | return r; | |
411 | ||
412 | p += remaining; | |
413 | remaining = 0; | |
414 | } | |
415 | ||
416 | if (p > s->buffer) { | |
417 | memmove(s->buffer, p, remaining); | |
418 | s->length = remaining; | |
419 | } | |
420 | ||
421 | return 0; | |
422 | } | |
423 | ||
f9a810be LP |
424 | static int stdout_stream_process(sd_event_source *es, int fd, uint32_t revents, void *userdata) { |
425 | StdoutStream *s = userdata; | |
a45b9fca LP |
426 | ssize_t l; |
427 | int r; | |
428 | ||
429 | assert(s); | |
430 | ||
f9a810be LP |
431 | if ((revents|EPOLLIN|EPOLLHUP) != (EPOLLIN|EPOLLHUP)) { |
432 | log_error("Got invalid event from epoll for stdout stream: %"PRIx32, revents); | |
91bf3b3e | 433 | goto terminate; |
f9a810be LP |
434 | } |
435 | ||
a45b9fca LP |
436 | l = read(s->fd, s->buffer+s->length, sizeof(s->buffer)-1-s->length); |
437 | if (l < 0) { | |
438 | ||
439 | if (errno == EAGAIN) | |
440 | return 0; | |
441 | ||
56f64d95 | 442 | log_warning_errno(errno, "Failed to read from stream: %m"); |
91bf3b3e | 443 | goto terminate; |
a45b9fca LP |
444 | } |
445 | ||
446 | if (l == 0) { | |
7b77ed8c | 447 | stdout_stream_scan(s, true); |
91bf3b3e | 448 | goto terminate; |
a45b9fca LP |
449 | } |
450 | ||
451 | s->length += l; | |
452 | r = stdout_stream_scan(s, false); | |
453 | if (r < 0) | |
91bf3b3e | 454 | goto terminate; |
a45b9fca LP |
455 | |
456 | return 1; | |
457 | ||
91bf3b3e | 458 | terminate: |
13790add | 459 | stdout_stream_destroy(s); |
f9a810be | 460 | return 0; |
a45b9fca LP |
461 | } |
462 | ||
13790add LP |
463 | static int stdout_stream_install(Server *s, int fd, StdoutStream **ret) { |
464 | _cleanup_(stdout_stream_freep) StdoutStream *stream = NULL; | |
465 | int r; | |
466 | ||
a45b9fca | 467 | assert(s); |
13790add | 468 | assert(fd >= 0); |
a45b9fca | 469 | |
13790add LP |
470 | stream = new0(StdoutStream, 1); |
471 | if (!stream) | |
472 | return log_oom(); | |
a45b9fca | 473 | |
13790add LP |
474 | stream->fd = -1; |
475 | stream->priority = LOG_INFO; | |
a45b9fca | 476 | |
13790add LP |
477 | r = getpeercred(fd, &stream->ucred); |
478 | if (r < 0) | |
479 | return log_error_errno(r, "Failed to determine peer credentials: %m"); | |
a45b9fca | 480 | |
13790add | 481 | if (mac_selinux_use()) { |
2de56f70 ZJS |
482 | r = getpeersec(fd, &stream->label); |
483 | if (r < 0 && r != -EOPNOTSUPP) | |
484 | (void) log_warning_errno(r, "Failed to determine peer security context: %m"); | |
13790add | 485 | } |
a45b9fca | 486 | |
13790add LP |
487 | (void) shutdown(fd, SHUT_WR); |
488 | ||
489 | r = sd_event_add_io(s->event, &stream->event_source, fd, EPOLLIN, stdout_stream_process, stream); | |
490 | if (r < 0) | |
491 | return log_error_errno(r, "Failed to add stream to event loop: %m"); | |
492 | ||
493 | r = sd_event_source_set_priority(stream->event_source, SD_EVENT_PRIORITY_NORMAL+5); | |
494 | if (r < 0) | |
495 | return log_error_errno(r, "Failed to adjust stdout event source priority: %m"); | |
496 | ||
497 | stream->fd = fd; | |
498 | ||
499 | stream->server = s; | |
500 | LIST_PREPEND(stdout_stream, s->stdout_streams, stream); | |
501 | s->n_stdout_streams ++; | |
502 | ||
503 | if (ret) | |
504 | *ret = stream; | |
505 | ||
506 | stream = NULL; | |
507 | ||
508 | return 0; | |
a45b9fca LP |
509 | } |
510 | ||
f9a810be | 511 | static int stdout_stream_new(sd_event_source *es, int listen_fd, uint32_t revents, void *userdata) { |
13790add | 512 | _cleanup_close_ int fd = -1; |
f9a810be | 513 | Server *s = userdata; |
13790add | 514 | int r; |
a45b9fca LP |
515 | |
516 | assert(s); | |
517 | ||
f9a810be LP |
518 | if (revents != EPOLLIN) { |
519 | log_error("Got invalid event from epoll for stdout server fd: %"PRIx32, revents); | |
520 | return -EIO; | |
521 | } | |
522 | ||
a45b9fca LP |
523 | fd = accept4(s->stdout_fd, NULL, NULL, SOCK_NONBLOCK|SOCK_CLOEXEC); |
524 | if (fd < 0) { | |
525 | if (errno == EAGAIN) | |
526 | return 0; | |
527 | ||
56f64d95 | 528 | log_error_errno(errno, "Failed to accept stdout connection: %m"); |
a45b9fca LP |
529 | return -errno; |
530 | } | |
531 | ||
532 | if (s->n_stdout_streams >= STDOUT_STREAMS_MAX) { | |
533 | log_warning("Too many stdout streams, refusing connection."); | |
a45b9fca LP |
534 | return 0; |
535 | } | |
536 | ||
13790add LP |
537 | r = stdout_stream_install(s, fd, NULL); |
538 | if (r < 0) | |
539 | return r; | |
540 | ||
541 | fd = -1; | |
542 | return 0; | |
543 | } | |
544 | ||
545 | static int stdout_stream_load(StdoutStream *stream, const char *fname) { | |
546 | _cleanup_free_ char | |
547 | *priority = NULL, | |
548 | *level_prefix = NULL, | |
549 | *forward_to_syslog = NULL, | |
550 | *forward_to_kmsg = NULL, | |
551 | *forward_to_console = NULL; | |
552 | int r; | |
553 | ||
554 | assert(stream); | |
555 | assert(fname); | |
556 | ||
557 | if (!stream->state_file) { | |
558 | stream->state_file = strappend("/run/systemd/journal/streams/", fname); | |
559 | if (!stream->state_file) | |
560 | return log_oom(); | |
a45b9fca LP |
561 | } |
562 | ||
13790add LP |
563 | r = parse_env_file(stream->state_file, NEWLINE, |
564 | "PRIORITY", &priority, | |
565 | "LEVEL_PREFIX", &level_prefix, | |
566 | "FORWARD_TO_SYSLOG", &forward_to_syslog, | |
567 | "FORWARD_TO_KMSG", &forward_to_kmsg, | |
568 | "FORWARD_TO_CONSOLE", &forward_to_console, | |
569 | "IDENTIFIER", &stream->identifier, | |
570 | "UNIT", &stream->unit_id, | |
571 | NULL); | |
572 | if (r < 0) | |
573 | return log_error_errno(r, "Failed to read: %s", stream->state_file); | |
a45b9fca | 574 | |
13790add LP |
575 | if (priority) { |
576 | int p; | |
577 | ||
578 | p = log_level_from_string(priority); | |
579 | if (p >= 0) | |
580 | stream->priority = p; | |
a45b9fca LP |
581 | } |
582 | ||
13790add LP |
583 | if (level_prefix) { |
584 | r = parse_boolean(level_prefix); | |
585 | if (r >= 0) | |
586 | stream->level_prefix = r; | |
d682b3a7 | 587 | } |
a45b9fca | 588 | |
13790add LP |
589 | if (forward_to_syslog) { |
590 | r = parse_boolean(forward_to_syslog); | |
591 | if (r >= 0) | |
592 | stream->forward_to_syslog = r; | |
a45b9fca LP |
593 | } |
594 | ||
13790add LP |
595 | if (forward_to_kmsg) { |
596 | r = parse_boolean(forward_to_kmsg); | |
597 | if (r >= 0) | |
598 | stream->forward_to_kmsg = r; | |
f9a810be LP |
599 | } |
600 | ||
13790add LP |
601 | if (forward_to_console) { |
602 | r = parse_boolean(forward_to_console); | |
603 | if (r >= 0) | |
604 | stream->forward_to_console = r; | |
a45b9fca LP |
605 | } |
606 | ||
13790add LP |
607 | return 0; |
608 | } | |
609 | ||
610 | static int stdout_stream_restore(Server *s, const char *fname, int fd) { | |
611 | StdoutStream *stream; | |
612 | int r; | |
613 | ||
614 | assert(s); | |
615 | assert(fname); | |
616 | assert(fd >= 0); | |
617 | ||
618 | if (s->n_stdout_streams >= STDOUT_STREAMS_MAX) { | |
619 | log_warning("Too many stdout streams, refusing restoring of stream."); | |
620 | return -ENOBUFS; | |
621 | } | |
622 | ||
623 | r = stdout_stream_install(s, fd, &stream); | |
624 | if (r < 0) | |
625 | return r; | |
626 | ||
627 | stream->state = STDOUT_STREAM_RUNNING; | |
628 | stream->fdstore = true; | |
629 | ||
630 | /* Ignore all parsing errors */ | |
631 | (void) stdout_stream_load(stream, fname); | |
a45b9fca LP |
632 | |
633 | return 0; | |
13790add LP |
634 | } |
635 | ||
15d91bff | 636 | int server_restore_streams(Server *s, FDSet *fds) { |
13790add LP |
637 | _cleanup_closedir_ DIR *d = NULL; |
638 | struct dirent *de; | |
639 | int r; | |
640 | ||
641 | d = opendir("/run/systemd/journal/streams"); | |
642 | if (!d) { | |
643 | if (errno == ENOENT) | |
644 | return 0; | |
645 | ||
646 | return log_warning_errno(errno, "Failed to enumerate /run/systemd/journal/streams: %m"); | |
647 | } | |
648 | ||
649 | FOREACH_DIRENT(de, d, goto fail) { | |
650 | unsigned long st_dev, st_ino; | |
651 | bool found = false; | |
652 | Iterator i; | |
653 | int fd; | |
654 | ||
655 | if (sscanf(de->d_name, "%lu:%lu", &st_dev, &st_ino) != 2) | |
656 | continue; | |
657 | ||
658 | FDSET_FOREACH(fd, fds, i) { | |
659 | struct stat st; | |
660 | ||
661 | if (fstat(fd, &st) < 0) | |
662 | return log_error_errno(errno, "Failed to stat %s: %m", de->d_name); | |
663 | ||
664 | if (S_ISSOCK(st.st_mode) && st.st_dev == st_dev && st.st_ino == st_ino) { | |
665 | found = true; | |
666 | break; | |
667 | } | |
668 | } | |
669 | ||
670 | if (!found) { | |
671 | /* No file descriptor? Then let's delete the state file */ | |
672 | log_debug("Cannot restore stream file %s", de->d_name); | |
673 | unlinkat(dirfd(d), de->d_name, 0); | |
674 | continue; | |
675 | } | |
676 | ||
677 | fdset_remove(fds, fd); | |
678 | ||
679 | r = stdout_stream_restore(s, de->d_name, fd); | |
680 | if (r < 0) | |
681 | safe_close(fd); | |
682 | } | |
a45b9fca | 683 | |
7b77ed8c | 684 | return 0; |
13790add LP |
685 | |
686 | fail: | |
687 | return log_error_errno(errno, "Failed to read streams directory: %m"); | |
a45b9fca LP |
688 | } |
689 | ||
15d91bff | 690 | int server_open_stdout_socket(Server *s) { |
a45b9fca | 691 | int r; |
a45b9fca LP |
692 | |
693 | assert(s); | |
694 | ||
695 | if (s->stdout_fd < 0) { | |
b92bea5d ZJS |
696 | union sockaddr_union sa = { |
697 | .un.sun_family = AF_UNIX, | |
698 | .un.sun_path = "/run/systemd/journal/stdout", | |
699 | }; | |
a45b9fca LP |
700 | |
701 | s->stdout_fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
4a62c710 MS |
702 | if (s->stdout_fd < 0) |
703 | return log_error_errno(errno, "socket() failed: %m"); | |
a45b9fca | 704 | |
a45b9fca LP |
705 | unlink(sa.un.sun_path); |
706 | ||
707 | r = bind(s->stdout_fd, &sa.sa, offsetof(union sockaddr_union, un.sun_path) + strlen(sa.un.sun_path)); | |
4a62c710 MS |
708 | if (r < 0) |
709 | return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path); | |
a45b9fca | 710 | |
4a61c3e5 | 711 | (void) chmod(sa.un.sun_path, 0666); |
a45b9fca | 712 | |
4a62c710 MS |
713 | if (listen(s->stdout_fd, SOMAXCONN) < 0) |
714 | return log_error_errno(errno, "listen(%s) failed: %m", sa.un.sun_path); | |
a45b9fca LP |
715 | } else |
716 | fd_nonblock(s->stdout_fd, 1); | |
717 | ||
151b9b96 | 718 | r = sd_event_add_io(s->event, &s->stdout_event_source, s->stdout_fd, EPOLLIN, stdout_stream_new, s); |
23bbb0de MS |
719 | if (r < 0) |
720 | return log_error_errno(r, "Failed to add stdout server fd to event source: %m"); | |
f9a810be LP |
721 | |
722 | r = sd_event_source_set_priority(s->stdout_event_source, SD_EVENT_PRIORITY_NORMAL+10); | |
23bbb0de MS |
723 | if (r < 0) |
724 | return log_error_errno(r, "Failed to adjust priority of stdout server event source: %m"); | |
a45b9fca LP |
725 | |
726 | return 0; | |
727 | } |