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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
fdfccdbc ZJS |
2 | |
3 | #include <errno.h> | |
4 | #include <fcntl.h> | |
fdfccdbc | 5 | #include <stdlib.h> |
fdfccdbc | 6 | #include <sys/prctl.h> |
5e38eb93 | 7 | #include <stdint.h> |
3f6fd1ba | 8 | |
fdfccdbc | 9 | #include "sd-daemon.h" |
3f6fd1ba | 10 | |
b5efdb8a | 11 | #include "alloc-util.h" |
a0f29c76 | 12 | #include "def.h" |
4ff9bc2e | 13 | #include "errno-util.h" |
4f5dd394 | 14 | #include "escape.h" |
3ffd4af2 | 15 | #include "fd-util.h" |
fdfccdbc | 16 | #include "journal-file.h" |
4f5dd394 | 17 | #include "journal-remote-write.h" |
3ffd4af2 | 18 | #include "journal-remote.h" |
fdfccdbc | 19 | #include "journald-native.h" |
fdfccdbc | 20 | #include "macro.h" |
6bedfcbb | 21 | #include "parse-util.h" |
dccca82b | 22 | #include "process-util.h" |
3f6fd1ba | 23 | #include "socket-util.h" |
15a5e950 | 24 | #include "stdio-util.h" |
07630cea | 25 | #include "string-util.h" |
fdfccdbc | 26 | #include "strv.h" |
fdfccdbc | 27 | |
8201af08 | 28 | #define REMOTE_JOURNAL_PATH "/var/log/journal/remote" |
fdfccdbc | 29 | |
9ff48d09 | 30 | #define filename_escape(s) xescape((s), "/ ") |
8201af08 | 31 | |
c064d8db ZJS |
32 | static int open_output(RemoteServer *s, Writer *w, const char* host) { |
33 | _cleanup_free_ char *_filename = NULL; | |
34 | const char *filename; | |
fdfccdbc ZJS |
35 | int r; |
36 | ||
c064d8db | 37 | switch (s->split_mode) { |
8201af08 | 38 | case JOURNAL_WRITE_SPLIT_NONE: |
c064d8db | 39 | filename = s->output; |
8201af08 | 40 | break; |
fdfccdbc | 41 | |
8201af08 ZJS |
42 | case JOURNAL_WRITE_SPLIT_HOST: { |
43 | _cleanup_free_ char *name; | |
fdfccdbc | 44 | |
8201af08 | 45 | assert(host); |
fdfccdbc | 46 | |
8201af08 ZJS |
47 | name = filename_escape(host); |
48 | if (!name) | |
49 | return log_oom(); | |
50 | ||
c064d8db | 51 | r = asprintf(&_filename, "%s/remote-%s.journal", s->output, name); |
fdfccdbc ZJS |
52 | if (r < 0) |
53 | return log_oom(); | |
8201af08 | 54 | |
c064d8db | 55 | filename = _filename; |
8201af08 ZJS |
56 | break; |
57 | } | |
58 | ||
59 | default: | |
60 | assert_not_reached("what?"); | |
fdfccdbc ZJS |
61 | } |
62 | ||
c064d8db | 63 | r = journal_file_open_reliably(filename, |
fdfccdbc | 64 | O_RDWR|O_CREAT, 0640, |
c064d8db | 65 | s->compress, (uint64_t) -1, s->seal, |
8201af08 | 66 | &w->metrics, |
b58c888f | 67 | w->mmap, NULL, |
8201af08 | 68 | NULL, &w->journal); |
fdfccdbc | 69 | if (r < 0) |
c064d8db ZJS |
70 | return log_error_errno(r, "Failed to open output journal %s: %m", filename); |
71 | ||
72 | log_debug("Opened output file %s", w->journal->path); | |
73 | return 0; | |
fdfccdbc ZJS |
74 | } |
75 | ||
cc64d017 ZJS |
76 | /********************************************************************** |
77 | ********************************************************************** | |
78 | **********************************************************************/ | |
79 | ||
9ff48d09 | 80 | static int init_writer_hashmap(RemoteServer *s) { |
c064d8db | 81 | static const struct hash_ops* const hash_ops[] = { |
d5099efc MS |
82 | [JOURNAL_WRITE_SPLIT_NONE] = NULL, |
83 | [JOURNAL_WRITE_SPLIT_HOST] = &string_hash_ops, | |
9ff48d09 ZJS |
84 | }; |
85 | ||
c064d8db ZJS |
86 | assert(s); |
87 | assert(s->split_mode >= 0 && s->split_mode < (int) ELEMENTSOF(hash_ops)); | |
cc64d017 | 88 | |
c064d8db | 89 | s->writers = hashmap_new(hash_ops[s->split_mode]); |
9ff48d09 ZJS |
90 | if (!s->writers) |
91 | return log_oom(); | |
92 | ||
93 | return 0; | |
94 | } | |
95 | ||
c064d8db | 96 | int journal_remote_get_writer(RemoteServer *s, const char *host, Writer **writer) { |
8e766630 | 97 | _cleanup_(writer_unrefp) Writer *w = NULL; |
9ff48d09 | 98 | const void *key; |
9ff48d09 ZJS |
99 | int r; |
100 | ||
c064d8db | 101 | switch(s->split_mode) { |
9ff48d09 ZJS |
102 | case JOURNAL_WRITE_SPLIT_NONE: |
103 | key = "one and only"; | |
104 | break; | |
105 | ||
106 | case JOURNAL_WRITE_SPLIT_HOST: | |
107 | assert(host); | |
108 | key = host; | |
109 | break; | |
110 | ||
111 | default: | |
112 | assert_not_reached("what split mode?"); | |
113 | } | |
114 | ||
115 | w = hashmap_get(s->writers, key); | |
116 | if (w) | |
117 | writer_ref(w); | |
118 | else { | |
119 | w = writer_new(s); | |
120 | if (!w) | |
121 | return log_oom(); | |
122 | ||
c064d8db | 123 | if (s->split_mode == JOURNAL_WRITE_SPLIT_HOST) { |
9ff48d09 ZJS |
124 | w->hashmap_key = strdup(key); |
125 | if (!w->hashmap_key) | |
126 | return log_oom(); | |
127 | } | |
cc64d017 | 128 | |
c064d8db | 129 | r = open_output(s, w, host); |
9ff48d09 ZJS |
130 | if (r < 0) |
131 | return r; | |
fdfccdbc | 132 | |
9ff48d09 ZJS |
133 | r = hashmap_put(s->writers, w->hashmap_key ?: key, w); |
134 | if (r < 0) | |
135 | return r; | |
136 | } | |
fdfccdbc | 137 | |
1cc6c93a YW |
138 | *writer = TAKE_PTR(w); |
139 | ||
9ff48d09 ZJS |
140 | return 0; |
141 | } | |
cc64d017 | 142 | |
9ff48d09 ZJS |
143 | /********************************************************************** |
144 | ********************************************************************** | |
145 | **********************************************************************/ | |
fdfccdbc | 146 | |
cc64d017 | 147 | /* This should go away as soon as µhttpd allows state to be passed around. */ |
c064d8db | 148 | RemoteServer *journal_remote_server_global; |
cc64d017 | 149 | |
fdfccdbc ZJS |
150 | static int dispatch_raw_source_event(sd_event_source *event, |
151 | int fd, | |
152 | uint32_t revents, | |
153 | void *userdata); | |
043945b9 ZJS |
154 | static int dispatch_raw_source_until_block(sd_event_source *event, |
155 | void *userdata); | |
70f1b2dd ZJS |
156 | static int dispatch_blocking_source_event(sd_event_source *event, |
157 | void *userdata); | |
fdfccdbc ZJS |
158 | static int dispatch_raw_connection_event(sd_event_source *event, |
159 | int fd, | |
160 | uint32_t revents, | |
161 | void *userdata); | |
162 | ||
9ff48d09 ZJS |
163 | static int get_source_for_fd(RemoteServer *s, |
164 | int fd, char *name, RemoteSource **source) { | |
165 | Writer *writer; | |
166 | int r; | |
167 | ||
1f8af042 ZJS |
168 | /* This takes ownership of name, but only on success. */ |
169 | ||
fdfccdbc ZJS |
170 | assert(fd >= 0); |
171 | assert(source); | |
172 | ||
ca2d3784 | 173 | if (!GREEDY_REALLOC0(s->sources, s->sources_size, fd + 1)) |
fdfccdbc ZJS |
174 | return log_oom(); |
175 | ||
c064d8db | 176 | r = journal_remote_get_writer(s, name, &writer); |
eb56eb9b MS |
177 | if (r < 0) |
178 | return log_warning_errno(r, "Failed to get writer for source %s: %m", | |
179 | name); | |
9ff48d09 | 180 | |
4e361acc | 181 | if (!s->sources[fd]) { |
9ff48d09 ZJS |
182 | s->sources[fd] = source_new(fd, false, name, writer); |
183 | if (!s->sources[fd]) { | |
184 | writer_unref(writer); | |
fdfccdbc | 185 | return log_oom(); |
9ff48d09 ZJS |
186 | } |
187 | ||
fdfccdbc ZJS |
188 | s->active++; |
189 | } | |
190 | ||
191 | *source = s->sources[fd]; | |
192 | return 0; | |
193 | } | |
194 | ||
195 | static int remove_source(RemoteServer *s, int fd) { | |
196 | RemoteSource *source; | |
197 | ||
198 | assert(s); | |
ca2d3784 | 199 | assert(fd >= 0 && fd < (ssize_t) s->sources_size); |
fdfccdbc ZJS |
200 | |
201 | source = s->sources[fd]; | |
202 | if (source) { | |
8201af08 | 203 | /* this closes fd too */ |
fdfccdbc ZJS |
204 | source_free(source); |
205 | s->sources[fd] = NULL; | |
206 | s->active--; | |
207 | } | |
208 | ||
fdfccdbc ZJS |
209 | return 0; |
210 | } | |
211 | ||
c064d8db | 212 | int journal_remote_add_source(RemoteServer *s, int fd, char* name, bool own_name) { |
a7f7d1bd | 213 | RemoteSource *source = NULL; |
fdfccdbc ZJS |
214 | int r; |
215 | ||
1f8af042 ZJS |
216 | /* This takes ownership of name, even on failure, if own_name is true. */ |
217 | ||
fdfccdbc ZJS |
218 | assert(s); |
219 | assert(fd >= 0); | |
9ff48d09 | 220 | assert(name); |
fdfccdbc | 221 | |
9ff48d09 ZJS |
222 | if (!own_name) { |
223 | name = strdup(name); | |
224 | if (!name) | |
225 | return log_oom(); | |
226 | } | |
fdfccdbc | 227 | |
9ff48d09 | 228 | r = get_source_for_fd(s, fd, name, &source); |
fdfccdbc | 229 | if (r < 0) { |
c33b3297 MS |
230 | log_error_errno(r, "Failed to create source for fd:%d (%s): %m", |
231 | fd, name); | |
1f8af042 | 232 | free(name); |
fdfccdbc ZJS |
233 | return r; |
234 | } | |
8201af08 | 235 | |
fdfccdbc | 236 | r = sd_event_add_io(s->events, &source->event, |
8201af08 | 237 | fd, EPOLLIN|EPOLLRDHUP|EPOLLPRI, |
043945b9 ZJS |
238 | dispatch_raw_source_event, source); |
239 | if (r == 0) { | |
240 | /* Add additional source for buffer processing. It will be | |
241 | * enabled later. */ | |
242 | r = sd_event_add_defer(s->events, &source->buffer_event, | |
243 | dispatch_raw_source_until_block, source); | |
244 | if (r == 0) | |
245 | sd_event_source_set_enabled(source->buffer_event, SD_EVENT_OFF); | |
246 | } else if (r == -EPERM) { | |
70f1b2dd ZJS |
247 | log_debug("Falling back to sd_event_add_defer for fd:%d (%s)", fd, name); |
248 | r = sd_event_add_defer(s->events, &source->event, | |
249 | dispatch_blocking_source_event, source); | |
250 | if (r == 0) | |
251 | sd_event_source_set_enabled(source->event, SD_EVENT_ON); | |
252 | } | |
fdfccdbc | 253 | if (r < 0) { |
c33b3297 MS |
254 | log_error_errno(r, "Failed to register event source for fd:%d: %m", |
255 | fd); | |
fdfccdbc ZJS |
256 | goto error; |
257 | } | |
258 | ||
356779df | 259 | r = sd_event_source_set_description(source->event, name); |
43300d9d | 260 | if (r < 0) { |
da927ba9 | 261 | log_error_errno(r, "Failed to set source name for fd:%d: %m", fd); |
43300d9d ZJS |
262 | goto error; |
263 | } | |
264 | ||
fdfccdbc ZJS |
265 | return 1; /* work to do */ |
266 | ||
267 | error: | |
268 | remove_source(s, fd); | |
269 | return r; | |
270 | } | |
271 | ||
c064d8db | 272 | int journal_remote_add_raw_socket(RemoteServer *s, int fd) { |
8a8d55f2 | 273 | int r; |
43300d9d | 274 | _cleanup_close_ int fd_ = fd; |
fbd0b64f | 275 | char name[STRLEN("raw-socket-") + DECIMAL_STR_MAX(int) + 1]; |
43300d9d ZJS |
276 | |
277 | assert(fd >= 0); | |
fdfccdbc | 278 | |
8201af08 ZJS |
279 | r = sd_event_add_io(s->events, &s->listen_event, |
280 | fd, EPOLLIN, | |
fdfccdbc | 281 | dispatch_raw_connection_event, s); |
43300d9d | 282 | if (r < 0) |
fdfccdbc | 283 | return r; |
fdfccdbc | 284 | |
5ffa8c81 | 285 | xsprintf(name, "raw-socket-%d", fd); |
43300d9d | 286 | |
356779df | 287 | r = sd_event_source_set_description(s->listen_event, name); |
43300d9d ZJS |
288 | if (r < 0) |
289 | return r; | |
290 | ||
291 | fd_ = -1; | |
313cefa1 | 292 | s->active++; |
fdfccdbc ZJS |
293 | return 0; |
294 | } | |
295 | ||
8201af08 ZJS |
296 | /********************************************************************** |
297 | ********************************************************************** | |
298 | **********************************************************************/ | |
299 | ||
c064d8db ZJS |
300 | int journal_remote_server_init( |
301 | RemoteServer *s, | |
302 | const char *output, | |
303 | JournalWriteSplitMode split_mode, | |
304 | bool compress, | |
305 | bool seal) { | |
cc64d017 | 306 | |
fdfccdbc ZJS |
307 | int r; |
308 | ||
309 | assert(s); | |
310 | ||
c064d8db ZJS |
311 | assert(journal_remote_server_global == NULL); |
312 | journal_remote_server_global = s; | |
fdfccdbc | 313 | |
c064d8db ZJS |
314 | s->split_mode = split_mode; |
315 | s->compress = compress; | |
316 | s->seal = seal; | |
43300d9d | 317 | |
c064d8db ZJS |
318 | if (output) |
319 | s->output = output; | |
320 | else if (split_mode == JOURNAL_WRITE_SPLIT_NONE) | |
321 | s->output = REMOTE_JOURNAL_PATH "/remote.journal"; | |
322 | else if (split_mode == JOURNAL_WRITE_SPLIT_HOST) | |
323 | s->output = REMOTE_JOURNAL_PATH; | |
42b6bf75 | 324 | else |
c064d8db | 325 | assert_not_reached("bad split mode"); |
ad95fd1d | 326 | |
b1604b34 | 327 | r = sd_event_default(&s->events); |
23bbb0de MS |
328 | if (r < 0) |
329 | return log_error_errno(r, "Failed to allocate event loop: %m"); | |
fdfccdbc | 330 | |
22259a00 JL |
331 | r = init_writer_hashmap(s); |
332 | if (r < 0) | |
333 | return r; | |
334 | ||
8201af08 | 335 | return 0; |
fdfccdbc ZJS |
336 | } |
337 | ||
63e2ebcd | 338 | #if HAVE_MICROHTTPD |
1599f593 ZJS |
339 | static void MHDDaemonWrapper_free(MHDDaemonWrapper *d) { |
340 | MHD_stop_daemon(d->daemon); | |
341 | sd_event_source_unref(d->io_event); | |
342 | sd_event_source_unref(d->timer_event); | |
343 | free(d); | |
344 | } | |
63e2ebcd | 345 | #endif |
1599f593 | 346 | |
94952201 | 347 | void journal_remote_server_destroy(RemoteServer *s) { |
ca2d3784 | 348 | size_t i; |
cc64d017 | 349 | |
63e2ebcd | 350 | #if HAVE_MICROHTTPD |
1599f593 | 351 | hashmap_free_with_destructor(s->daemons, MHDDaemonWrapper_free); |
63e2ebcd | 352 | #endif |
cc64d017 | 353 | |
fdfccdbc | 354 | assert(s->sources_size == 0 || s->sources); |
cc64d017 | 355 | for (i = 0; i < s->sources_size; i++) |
fdfccdbc | 356 | remove_source(s, i); |
fdfccdbc ZJS |
357 | free(s->sources); |
358 | ||
9ff48d09 ZJS |
359 | writer_unref(s->_single_writer); |
360 | hashmap_free(s->writers); | |
361 | ||
fdfccdbc ZJS |
362 | sd_event_source_unref(s->sigterm_event); |
363 | sd_event_source_unref(s->sigint_event); | |
364 | sd_event_source_unref(s->listen_event); | |
365 | sd_event_unref(s->events); | |
366 | ||
c064d8db ZJS |
367 | if (s == journal_remote_server_global) |
368 | journal_remote_server_global = NULL; | |
369 | ||
fdfccdbc | 370 | /* fds that we're listening on remain open... */ |
fdfccdbc ZJS |
371 | } |
372 | ||
373 | /********************************************************************** | |
374 | ********************************************************************** | |
375 | **********************************************************************/ | |
376 | ||
864876ec ZJS |
377 | int journal_remote_handle_raw_source( |
378 | sd_event_source *event, | |
379 | int fd, | |
380 | uint32_t revents, | |
381 | RemoteServer *s) { | |
fdfccdbc | 382 | |
fdfccdbc ZJS |
383 | RemoteSource *source; |
384 | int r; | |
385 | ||
043945b9 ZJS |
386 | /* Returns 1 if there might be more data pending, |
387 | * 0 if data is currently exhausted, negative on error. | |
388 | */ | |
389 | ||
ca2d3784 | 390 | assert(fd >= 0 && fd < (ssize_t) s->sources_size); |
fdfccdbc | 391 | source = s->sources[fd]; |
b18453ed | 392 | assert(source->importer.fd == fd); |
fdfccdbc | 393 | |
c064d8db | 394 | r = process_source(source, s->compress, s->seal); |
b18453ed | 395 | if (journal_importer_eof(&source->importer)) { |
4a0a6ac0 ZJS |
396 | size_t remaining; |
397 | ||
b18453ed ZJS |
398 | log_debug("EOF reached with source %s (fd=%d)", |
399 | source->importer.name, source->importer.fd); | |
4a0a6ac0 | 400 | |
b18453ed | 401 | remaining = journal_importer_bytes_remaining(&source->importer); |
4a0a6ac0 | 402 | if (remaining > 0) |
0e72da6f | 403 | log_notice("Premature EOF. %zu bytes lost.", remaining); |
b18453ed | 404 | remove_source(s, source->importer.fd); |
0e72da6f | 405 | log_debug("%zu active sources remaining", s->active); |
8201af08 | 406 | return 0; |
fdfccdbc | 407 | } else if (r == -E2BIG) { |
ef4d6abe ZJS |
408 | log_notice("Entry with too many fields, skipped"); |
409 | return 1; | |
410 | } else if (r == -ENOBUFS) { | |
d4e98880 | 411 | log_notice("Entry too big, skipped"); |
8201af08 | 412 | return 1; |
ff55c3c7 | 413 | } else if (r == -EAGAIN) { |
8201af08 ZJS |
414 | return 0; |
415 | } else if (r < 0) { | |
0e72da6f | 416 | log_debug_errno(r, "Closing connection: %m"); |
c064d8db | 417 | remove_source(s, fd); |
8201af08 ZJS |
418 | return 0; |
419 | } else | |
420 | return 1; | |
fdfccdbc ZJS |
421 | } |
422 | ||
043945b9 ZJS |
423 | static int dispatch_raw_source_until_block(sd_event_source *event, |
424 | void *userdata) { | |
425 | RemoteSource *source = userdata; | |
426 | int r; | |
427 | ||
428 | /* Make sure event stays around even if source is destroyed */ | |
429 | sd_event_source_ref(event); | |
430 | ||
864876ec | 431 | r = journal_remote_handle_raw_source(event, source->importer.fd, EPOLLIN, journal_remote_server_global); |
043945b9 ZJS |
432 | if (r != 1) |
433 | /* No more data for now */ | |
434 | sd_event_source_set_enabled(event, SD_EVENT_OFF); | |
435 | ||
436 | sd_event_source_unref(event); | |
437 | ||
438 | return r; | |
439 | } | |
440 | ||
441 | static int dispatch_raw_source_event(sd_event_source *event, | |
442 | int fd, | |
443 | uint32_t revents, | |
444 | void *userdata) { | |
445 | RemoteSource *source = userdata; | |
446 | int r; | |
447 | ||
448 | assert(source->event); | |
449 | assert(source->buffer_event); | |
450 | ||
864876ec | 451 | r = journal_remote_handle_raw_source(event, fd, EPOLLIN, journal_remote_server_global); |
043945b9 ZJS |
452 | if (r == 1) |
453 | /* Might have more data. We need to rerun the handler | |
454 | * until we are sure the buffer is exhausted. */ | |
455 | sd_event_source_set_enabled(source->buffer_event, SD_EVENT_ON); | |
456 | ||
457 | return r; | |
458 | } | |
459 | ||
70f1b2dd ZJS |
460 | static int dispatch_blocking_source_event(sd_event_source *event, |
461 | void *userdata) { | |
462 | RemoteSource *source = userdata; | |
463 | ||
864876ec | 464 | return journal_remote_handle_raw_source(event, source->importer.fd, EPOLLIN, journal_remote_server_global); |
70f1b2dd ZJS |
465 | } |
466 | ||
4ff9bc2e LP |
467 | static int accept_connection( |
468 | const char* type, | |
469 | int fd, | |
470 | SocketAddress *addr, | |
471 | char **hostname) { | |
472 | ||
473 | _cleanup_close_ int fd2 = -1; | |
474 | int r; | |
fdfccdbc | 475 | |
cc64d017 ZJS |
476 | log_debug("Accepting new %s connection on fd:%d", type, fd); |
477 | fd2 = accept4(fd, &addr->sockaddr.sa, &addr->size, SOCK_NONBLOCK|SOCK_CLOEXEC); | |
4ff9bc2e LP |
478 | if (fd2 < 0) { |
479 | if (ERRNO_IS_ACCEPT_AGAIN(errno)) | |
480 | return -EAGAIN; | |
481 | ||
4a62c710 | 482 | return log_error_errno(errno, "accept() on fd:%d failed: %m", fd); |
4ff9bc2e | 483 | } |
fdfccdbc | 484 | |
cc64d017 | 485 | switch(socket_address_family(addr)) { |
fdfccdbc ZJS |
486 | case AF_INET: |
487 | case AF_INET6: { | |
8201af08 ZJS |
488 | _cleanup_free_ char *a = NULL; |
489 | char *b; | |
fdfccdbc | 490 | |
cc64d017 | 491 | r = socket_address_print(addr, &a); |
4ff9bc2e LP |
492 | if (r < 0) |
493 | return log_error_errno(r, "socket_address_print(): %m"); | |
fdfccdbc | 494 | |
8201af08 | 495 | r = socknameinfo_pretty(&addr->sockaddr, addr->size, &b); |
4ff9bc2e LP |
496 | if (r < 0) |
497 | return log_error_errno(r, "Resolving hostname failed: %m"); | |
8201af08 | 498 | |
0e72da6f ZJS |
499 | log_debug("Accepted %s %s connection from %s", |
500 | type, | |
501 | socket_address_family(addr) == AF_INET ? "IP" : "IPv6", | |
502 | a); | |
cc64d017 | 503 | |
8201af08 | 504 | *hostname = b; |
4ff9bc2e LP |
505 | return TAKE_FD(fd2); |
506 | } | |
8201af08 | 507 | |
fdfccdbc | 508 | default: |
4ff9bc2e LP |
509 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), |
510 | "Rejected %s connection with unsupported family %d", | |
511 | type, socket_address_family(addr)); | |
fdfccdbc | 512 | } |
cc64d017 | 513 | } |
fdfccdbc | 514 | |
4ff9bc2e LP |
515 | static int dispatch_raw_connection_event( |
516 | sd_event_source *event, | |
517 | int fd, | |
518 | uint32_t revents, | |
519 | void *userdata) { | |
520 | ||
cc64d017 | 521 | RemoteServer *s = userdata; |
1f8af042 | 522 | int fd2; |
cc64d017 ZJS |
523 | SocketAddress addr = { |
524 | .size = sizeof(union sockaddr_union), | |
525 | .type = SOCK_STREAM, | |
526 | }; | |
a7f7d1bd | 527 | char *hostname = NULL; |
fdfccdbc | 528 | |
8201af08 | 529 | fd2 = accept_connection("raw", fd, &addr, &hostname); |
4ff9bc2e LP |
530 | if (fd2 == -EAGAIN) |
531 | return 0; | |
cc64d017 ZJS |
532 | if (fd2 < 0) |
533 | return fd2; | |
fdfccdbc | 534 | |
c064d8db | 535 | return journal_remote_add_source(s, fd2, hostname, true); |
fdfccdbc | 536 | } |