]>
Commit | Line | Data |
---|---|---|
d025f1e4 ZJS |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2011 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
19 | ||
24882e06 LP |
20 | #ifdef HAVE_SELINUX |
21 | #include <selinux/selinux.h> | |
22 | #endif | |
8580d1f7 LP |
23 | #include <sys/ioctl.h> |
24 | #include <sys/mman.h> | |
25 | #include <sys/signalfd.h> | |
26 | #include <sys/statvfs.h> | |
07630cea | 27 | #include <linux/sockios.h> |
24882e06 | 28 | |
b4bbcaa9 | 29 | #include "libudev.h" |
8580d1f7 | 30 | #include "sd-daemon.h" |
74df0fca LP |
31 | #include "sd-journal.h" |
32 | #include "sd-messages.h" | |
8580d1f7 LP |
33 | |
34 | #include "acl-util.h" | |
b5efdb8a | 35 | #include "alloc-util.h" |
430f0182 | 36 | #include "audit-util.h" |
d025f1e4 | 37 | #include "cgroup-util.h" |
d025f1e4 | 38 | #include "conf-parser.h" |
a0956174 | 39 | #include "dirent-util.h" |
0dec689b | 40 | #include "extract-word.h" |
3ffd4af2 | 41 | #include "fd-util.h" |
33d52ab9 | 42 | #include "fileio.h" |
958b66ea | 43 | #include "formats-util.h" |
f4f15635 | 44 | #include "fs-util.h" |
8580d1f7 | 45 | #include "hashmap.h" |
958b66ea | 46 | #include "hostname-util.h" |
afc5dbf3 | 47 | #include "io-util.h" |
8580d1f7 LP |
48 | #include "journal-authenticate.h" |
49 | #include "journal-file.h" | |
d025f1e4 ZJS |
50 | #include "journal-internal.h" |
51 | #include "journal-vacuum.h" | |
8580d1f7 | 52 | #include "journald-audit.h" |
d025f1e4 | 53 | #include "journald-kmsg.h" |
d025f1e4 | 54 | #include "journald-native.h" |
8580d1f7 | 55 | #include "journald-rate-limit.h" |
3ffd4af2 | 56 | #include "journald-server.h" |
8580d1f7 LP |
57 | #include "journald-stream.h" |
58 | #include "journald-syslog.h" | |
07630cea LP |
59 | #include "missing.h" |
60 | #include "mkdir.h" | |
6bedfcbb | 61 | #include "parse-util.h" |
4e731273 | 62 | #include "proc-cmdline.h" |
07630cea LP |
63 | #include "process-util.h" |
64 | #include "rm-rf.h" | |
65 | #include "selinux-util.h" | |
66 | #include "signal-util.h" | |
67 | #include "socket-util.h" | |
32917e33 | 68 | #include "stdio-util.h" |
8b43440b | 69 | #include "string-table.h" |
07630cea | 70 | #include "string-util.h" |
4a0b58c4 | 71 | #include "user-util.h" |
8a03c9ef | 72 | #include "log.h" |
d025f1e4 | 73 | |
d025f1e4 ZJS |
74 | #define USER_JOURNALS_MAX 1024 |
75 | ||
26687bf8 | 76 | #define DEFAULT_SYNC_INTERVAL_USEC (5*USEC_PER_MINUTE) |
7f1ad696 LP |
77 | #define DEFAULT_RATE_LIMIT_INTERVAL (30*USEC_PER_SEC) |
78 | #define DEFAULT_RATE_LIMIT_BURST 1000 | |
e150e820 | 79 | #define DEFAULT_MAX_FILE_USEC USEC_PER_MONTH |
d025f1e4 | 80 | |
8580d1f7 | 81 | #define RECHECK_SPACE_USEC (30*USEC_PER_SEC) |
d025f1e4 | 82 | |
e22aa3d3 LP |
83 | #define NOTIFY_SNDBUF_SIZE (8*1024*1024) |
84 | ||
7a24f3bf VC |
85 | /* The period to insert between posting changes for coalescing */ |
86 | #define POST_CHANGE_TIMER_INTERVAL_USEC (250*USEC_PER_MSEC) | |
87 | ||
8580d1f7 LP |
88 | static int determine_space_for( |
89 | Server *s, | |
90 | JournalMetrics *metrics, | |
91 | const char *path, | |
92 | const char *name, | |
93 | bool verbose, | |
94 | bool patch_min_use, | |
95 | uint64_t *available, | |
96 | uint64_t *limit) { | |
97 | ||
98 | uint64_t sum = 0, ss_avail, avail; | |
7fd1b19b | 99 | _cleanup_closedir_ DIR *d = NULL; |
8580d1f7 LP |
100 | struct dirent *de; |
101 | struct statvfs ss; | |
102 | const char *p; | |
d025f1e4 | 103 | usec_t ts; |
d025f1e4 | 104 | |
8580d1f7 LP |
105 | assert(s); |
106 | assert(metrics); | |
107 | assert(path); | |
108 | assert(name); | |
d025f1e4 | 109 | |
8580d1f7 | 110 | ts = now(CLOCK_MONOTONIC); |
d025f1e4 | 111 | |
8580d1f7 | 112 | if (!verbose && s->cached_space_timestamp + RECHECK_SPACE_USEC > ts) { |
d025f1e4 | 113 | |
8580d1f7 LP |
114 | if (available) |
115 | *available = s->cached_space_available; | |
116 | if (limit) | |
117 | *limit = s->cached_space_limit; | |
d025f1e4 | 118 | |
d025f1e4 | 119 | return 0; |
8580d1f7 | 120 | } |
d025f1e4 | 121 | |
8580d1f7 | 122 | p = strjoina(path, SERVER_MACHINE_ID(s)); |
d025f1e4 | 123 | d = opendir(p); |
d025f1e4 | 124 | if (!d) |
8580d1f7 | 125 | return log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR, errno, "Failed to open %s: %m", p); |
d025f1e4 ZJS |
126 | |
127 | if (fstatvfs(dirfd(d), &ss) < 0) | |
8580d1f7 | 128 | return log_error_errno(errno, "Failed to fstatvfs(%s): %m", p); |
d025f1e4 | 129 | |
8580d1f7 | 130 | FOREACH_DIRENT_ALL(de, d, break) { |
d025f1e4 | 131 | struct stat st; |
d025f1e4 ZJS |
132 | |
133 | if (!endswith(de->d_name, ".journal") && | |
134 | !endswith(de->d_name, ".journal~")) | |
135 | continue; | |
136 | ||
8580d1f7 LP |
137 | if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) { |
138 | log_debug_errno(errno, "Failed to stat %s/%s, ignoring: %m", p, de->d_name); | |
d025f1e4 | 139 | continue; |
8580d1f7 | 140 | } |
d025f1e4 ZJS |
141 | |
142 | if (!S_ISREG(st.st_mode)) | |
143 | continue; | |
144 | ||
145 | sum += (uint64_t) st.st_blocks * 512UL; | |
146 | } | |
147 | ||
8a03c9ef | 148 | /* If requested, then let's bump the min_use limit to the |
8580d1f7 LP |
149 | * current usage on disk. We do this when starting up and |
150 | * first opening the journal files. This way sudden spikes in | |
151 | * disk usage will not cause journald to vacuum files without | |
152 | * bounds. Note that this means that only a restart of | |
153 | * journald will make it reset this value. */ | |
d025f1e4 | 154 | |
8580d1f7 LP |
155 | if (patch_min_use) |
156 | metrics->min_use = MAX(metrics->min_use, sum); | |
348ced90 | 157 | |
8580d1f7 LP |
158 | ss_avail = ss.f_bsize * ss.f_bavail; |
159 | avail = LESS_BY(ss_avail, metrics->keep_free); | |
348ced90 | 160 | |
8580d1f7 LP |
161 | s->cached_space_limit = MIN(MAX(sum + avail, metrics->min_use), metrics->max_use); |
162 | s->cached_space_available = LESS_BY(s->cached_space_limit, sum); | |
163 | s->cached_space_timestamp = ts; | |
d025f1e4 | 164 | |
670b110c ZJS |
165 | if (verbose) { |
166 | char fb1[FORMAT_BYTES_MAX], fb2[FORMAT_BYTES_MAX], fb3[FORMAT_BYTES_MAX], | |
8580d1f7 | 167 | fb4[FORMAT_BYTES_MAX], fb5[FORMAT_BYTES_MAX], fb6[FORMAT_BYTES_MAX]; |
282c5c4e ZJS |
168 | format_bytes(fb1, sizeof(fb1), sum); |
169 | format_bytes(fb2, sizeof(fb2), metrics->max_use); | |
170 | format_bytes(fb3, sizeof(fb3), metrics->keep_free); | |
171 | format_bytes(fb4, sizeof(fb4), ss_avail); | |
172 | format_bytes(fb5, sizeof(fb5), s->cached_space_limit); | |
173 | format_bytes(fb6, sizeof(fb6), s->cached_space_available); | |
670b110c ZJS |
174 | |
175 | server_driver_message(s, SD_MESSAGE_JOURNAL_USAGE, | |
282c5c4e ZJS |
176 | LOG_MESSAGE("%s (%s) is %s, max %s, %s free.", |
177 | name, path, fb1, fb5, fb6), | |
178 | "JOURNAL_NAME=%s", name, | |
179 | "JOURNAL_PATH=%s", path, | |
180 | "CURRENT_USE=%"PRIu64, sum, | |
181 | "CURRENT_USE_PRETTY=%s", fb1, | |
182 | "MAX_USE=%"PRIu64, metrics->max_use, | |
183 | "MAX_USE_PRETTY=%s", fb2, | |
184 | "DISK_KEEP_FREE=%"PRIu64, metrics->keep_free, | |
185 | "DISK_KEEP_FREE_PRETTY=%s", fb3, | |
186 | "DISK_AVAILABLE=%"PRIu64, ss_avail, | |
187 | "DISK_AVAILABLE_PRETTY=%s", fb4, | |
188 | "LIMIT=%"PRIu64, s->cached_space_limit, | |
189 | "LIMIT_PRETTY=%s", fb5, | |
190 | "AVAILABLE=%"PRIu64, s->cached_space_available, | |
191 | "AVAILABLE_PRETTY=%s", fb6, | |
8a03c9ef | 192 | NULL); |
8580d1f7 LP |
193 | } |
194 | ||
195 | if (available) | |
196 | *available = s->cached_space_available; | |
197 | if (limit) | |
198 | *limit = s->cached_space_limit; | |
199 | ||
200 | return 1; | |
201 | } | |
202 | ||
203 | static int determine_space(Server *s, bool verbose, bool patch_min_use, uint64_t *available, uint64_t *limit) { | |
204 | JournalMetrics *metrics; | |
205 | const char *path, *name; | |
206 | ||
207 | assert(s); | |
208 | ||
209 | if (s->system_journal) { | |
210 | path = "/var/log/journal/"; | |
211 | metrics = &s->system_metrics; | |
212 | name = "System journal"; | |
213 | } else { | |
214 | path = "/run/log/journal/"; | |
215 | metrics = &s->runtime_metrics; | |
216 | name = "Runtime journal"; | |
670b110c ZJS |
217 | } |
218 | ||
8580d1f7 | 219 | return determine_space_for(s, metrics, path, name, verbose, patch_min_use, available, limit); |
d025f1e4 ZJS |
220 | } |
221 | ||
5c3bde3f | 222 | static void server_add_acls(JournalFile *f, uid_t uid) { |
d025f1e4 | 223 | #ifdef HAVE_ACL |
5c3bde3f | 224 | int r; |
d025f1e4 | 225 | #endif |
d025f1e4 ZJS |
226 | assert(f); |
227 | ||
d025f1e4 | 228 | #ifdef HAVE_ACL |
34c10968 | 229 | if (uid <= SYSTEM_UID_MAX) |
d025f1e4 ZJS |
230 | return; |
231 | ||
5c3bde3f ZJS |
232 | r = add_acls_for_user(f->fd, uid); |
233 | if (r < 0) | |
234 | log_warning_errno(r, "Failed to set ACL on %s, ignoring: %m", f->path); | |
d025f1e4 ZJS |
235 | #endif |
236 | } | |
237 | ||
7a24f3bf VC |
238 | static int open_journal( |
239 | Server *s, | |
240 | bool reliably, | |
241 | const char *fname, | |
242 | int flags, | |
243 | bool seal, | |
244 | JournalMetrics *metrics, | |
7a24f3bf VC |
245 | JournalFile **ret) { |
246 | int r; | |
e167d7fd | 247 | JournalFile *f; |
7a24f3bf VC |
248 | |
249 | assert(s); | |
250 | assert(fname); | |
251 | assert(ret); | |
252 | ||
253 | if (reliably) | |
b58c888f | 254 | r = journal_file_open_reliably(fname, flags, 0640, s->compress, seal, metrics, s->mmap, s->deferred_closes, NULL, &f); |
7a24f3bf | 255 | else |
5d1ce257 | 256 | r = journal_file_open(-1, fname, flags, 0640, s->compress, seal, metrics, s->mmap, s->deferred_closes, NULL, &f); |
7a24f3bf VC |
257 | if (r < 0) |
258 | return r; | |
259 | ||
e167d7fd | 260 | r = journal_file_enable_post_change_timer(f, s->event, POST_CHANGE_TIMER_INTERVAL_USEC); |
7a24f3bf | 261 | if (r < 0) { |
69a3a6fd | 262 | (void) journal_file_close(f); |
7a24f3bf VC |
263 | return r; |
264 | } | |
265 | ||
e167d7fd | 266 | *ret = f; |
7a24f3bf VC |
267 | return r; |
268 | } | |
269 | ||
105bdb46 VC |
270 | static int system_journal_open(Server *s, bool flush_requested) { |
271 | const char *fn; | |
272 | int r = 0; | |
273 | ||
274 | if (!s->system_journal && | |
275 | (s->storage == STORAGE_PERSISTENT || s->storage == STORAGE_AUTO) && | |
276 | (flush_requested | |
277 | || access("/run/systemd/journal/flushed", F_OK) >= 0)) { | |
278 | ||
279 | /* If in auto mode: first try to create the machine | |
280 | * path, but not the prefix. | |
281 | * | |
282 | * If in persistent mode: create /var/log/journal and | |
283 | * the machine path */ | |
284 | ||
285 | if (s->storage == STORAGE_PERSISTENT) | |
286 | (void) mkdir_p("/var/log/journal/", 0755); | |
287 | ||
288 | fn = strjoina("/var/log/journal/", SERVER_MACHINE_ID(s)); | |
289 | (void) mkdir(fn, 0755); | |
290 | ||
291 | fn = strjoina(fn, "/system.journal"); | |
292 | r = open_journal(s, true, fn, O_RDWR|O_CREAT, s->seal, &s->system_metrics, &s->system_journal); | |
293 | if (r >= 0) { | |
294 | server_add_acls(s->system_journal, 0); | |
295 | (void) determine_space_for(s, &s->system_metrics, "/var/log/journal/", "System journal", true, true, NULL, NULL); | |
296 | } else if (r < 0) { | |
297 | if (r != -ENOENT && r != -EROFS) | |
298 | log_warning_errno(r, "Failed to open system journal: %m"); | |
299 | ||
300 | r = 0; | |
301 | } | |
302 | } | |
303 | ||
304 | if (!s->runtime_journal && | |
305 | (s->storage != STORAGE_NONE)) { | |
306 | ||
307 | fn = strjoina("/run/log/journal/", SERVER_MACHINE_ID(s), "/system.journal"); | |
308 | ||
309 | if (s->system_journal) { | |
310 | ||
311 | /* Try to open the runtime journal, but only | |
312 | * if it already exists, so that we can flush | |
313 | * it into the system journal */ | |
314 | ||
315 | r = open_journal(s, false, fn, O_RDWR, false, &s->runtime_metrics, &s->runtime_journal); | |
316 | if (r < 0) { | |
317 | if (r != -ENOENT) | |
318 | log_warning_errno(r, "Failed to open runtime journal: %m"); | |
319 | ||
320 | r = 0; | |
321 | } | |
322 | ||
323 | } else { | |
324 | ||
325 | /* OK, we really need the runtime journal, so create | |
326 | * it if necessary. */ | |
327 | ||
328 | (void) mkdir("/run/log", 0755); | |
329 | (void) mkdir("/run/log/journal", 0755); | |
330 | (void) mkdir_parents(fn, 0750); | |
331 | ||
332 | r = open_journal(s, true, fn, O_RDWR|O_CREAT, false, &s->runtime_metrics, &s->runtime_journal); | |
333 | if (r < 0) | |
334 | return log_error_errno(r, "Failed to open runtime journal: %m"); | |
335 | } | |
336 | ||
337 | if (s->runtime_journal) { | |
338 | server_add_acls(s->runtime_journal, 0); | |
339 | (void) determine_space_for(s, &s->runtime_metrics, "/run/log/journal/", "Runtime journal", true, true, NULL, NULL); | |
340 | } | |
341 | } | |
342 | ||
343 | return r; | |
344 | } | |
345 | ||
d025f1e4 | 346 | static JournalFile* find_journal(Server *s, uid_t uid) { |
ed375beb | 347 | _cleanup_free_ char *p = NULL; |
d025f1e4 ZJS |
348 | int r; |
349 | JournalFile *f; | |
350 | sd_id128_t machine; | |
351 | ||
352 | assert(s); | |
353 | ||
105bdb46 VC |
354 | /* A rotate that fails to create the new journal (ENOSPC) leaves the |
355 | * rotated journal as NULL. Unless we revisit opening, even after | |
356 | * space is made available we'll continue to return NULL indefinitely. | |
357 | * | |
358 | * system_journal_open() is a noop if the journals are already open, so | |
359 | * we can just call it here to recover from failed rotates (or anything | |
360 | * else that's left the journals as NULL). | |
361 | * | |
362 | * Fixes https://github.com/systemd/systemd/issues/3968 */ | |
363 | (void) system_journal_open(s, false); | |
364 | ||
d025f1e4 ZJS |
365 | /* We split up user logs only on /var, not on /run. If the |
366 | * runtime file is open, we write to it exclusively, in order | |
367 | * to guarantee proper order as soon as we flush /run to | |
368 | * /var and close the runtime file. */ | |
369 | ||
370 | if (s->runtime_journal) | |
371 | return s->runtime_journal; | |
372 | ||
61755fda | 373 | if (uid <= SYSTEM_UID_MAX || uid_is_dynamic(uid)) |
d025f1e4 ZJS |
374 | return s->system_journal; |
375 | ||
376 | r = sd_id128_get_machine(&machine); | |
377 | if (r < 0) | |
378 | return s->system_journal; | |
379 | ||
4a0b58c4 | 380 | f = ordered_hashmap_get(s->user_journals, UID_TO_PTR(uid)); |
d025f1e4 ZJS |
381 | if (f) |
382 | return f; | |
383 | ||
de0671ee ZJS |
384 | if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/user-"UID_FMT".journal", |
385 | SD_ID128_FORMAT_VAL(machine), uid) < 0) | |
d025f1e4 ZJS |
386 | return s->system_journal; |
387 | ||
43cf8388 | 388 | while (ordered_hashmap_size(s->user_journals) >= USER_JOURNALS_MAX) { |
d025f1e4 | 389 | /* Too many open? Then let's close one */ |
43cf8388 | 390 | f = ordered_hashmap_steal_first(s->user_journals); |
d025f1e4 | 391 | assert(f); |
69a3a6fd | 392 | (void) journal_file_close(f); |
d025f1e4 ZJS |
393 | } |
394 | ||
089ed40b | 395 | r = open_journal(s, true, p, O_RDWR|O_CREAT, s->seal, &s->system_metrics, &f); |
d025f1e4 ZJS |
396 | if (r < 0) |
397 | return s->system_journal; | |
398 | ||
5c3bde3f | 399 | server_add_acls(f, uid); |
d025f1e4 | 400 | |
4a0b58c4 | 401 | r = ordered_hashmap_put(s->user_journals, UID_TO_PTR(uid), f); |
d025f1e4 | 402 | if (r < 0) { |
69a3a6fd | 403 | (void) journal_file_close(f); |
d025f1e4 ZJS |
404 | return s->system_journal; |
405 | } | |
406 | ||
407 | return f; | |
408 | } | |
409 | ||
ea69bd41 LP |
410 | static int do_rotate( |
411 | Server *s, | |
412 | JournalFile **f, | |
413 | const char* name, | |
414 | bool seal, | |
415 | uint32_t uid) { | |
416 | ||
fc55baee ZJS |
417 | int r; |
418 | assert(s); | |
419 | ||
420 | if (!*f) | |
421 | return -EINVAL; | |
422 | ||
b58c888f | 423 | r = journal_file_rotate(f, s->compress, seal, s->deferred_closes); |
fc55baee ZJS |
424 | if (r < 0) |
425 | if (*f) | |
ea69bd41 | 426 | log_error_errno(r, "Failed to rotate %s: %m", (*f)->path); |
fc55baee | 427 | else |
ea69bd41 | 428 | log_error_errno(r, "Failed to create new %s journal: %m", name); |
fc55baee | 429 | else |
5c3bde3f | 430 | server_add_acls(*f, uid); |
2678031a | 431 | |
fc55baee ZJS |
432 | return r; |
433 | } | |
434 | ||
d025f1e4 ZJS |
435 | void server_rotate(Server *s) { |
436 | JournalFile *f; | |
437 | void *k; | |
438 | Iterator i; | |
439 | int r; | |
440 | ||
441 | log_debug("Rotating..."); | |
442 | ||
8580d1f7 LP |
443 | (void) do_rotate(s, &s->runtime_journal, "runtime", false, 0); |
444 | (void) do_rotate(s, &s->system_journal, "system", s->seal, 0); | |
d025f1e4 | 445 | |
43cf8388 | 446 | ORDERED_HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) { |
4a0b58c4 | 447 | r = do_rotate(s, &f, "user", s->seal, PTR_TO_UID(k)); |
fc55baee | 448 | if (r >= 0) |
43cf8388 | 449 | ordered_hashmap_replace(s->user_journals, k, f); |
fc55baee ZJS |
450 | else if (!f) |
451 | /* Old file has been closed and deallocated */ | |
43cf8388 | 452 | ordered_hashmap_remove(s->user_journals, k); |
d025f1e4 | 453 | } |
b58c888f VC |
454 | |
455 | /* Perform any deferred closes which aren't still offlining. */ | |
456 | SET_FOREACH(f, s->deferred_closes, i) | |
457 | if (!journal_file_is_offlining(f)) { | |
458 | (void) set_remove(s->deferred_closes, f); | |
459 | (void) journal_file_close(f); | |
460 | } | |
d025f1e4 ZJS |
461 | } |
462 | ||
26687bf8 OS |
463 | void server_sync(Server *s) { |
464 | JournalFile *f; | |
26687bf8 OS |
465 | Iterator i; |
466 | int r; | |
467 | ||
26687bf8 | 468 | if (s->system_journal) { |
ac2e41f5 | 469 | r = journal_file_set_offline(s->system_journal, false); |
26687bf8 | 470 | if (r < 0) |
65089b82 | 471 | log_warning_errno(r, "Failed to sync system journal, ignoring: %m"); |
26687bf8 OS |
472 | } |
473 | ||
65c1d46b | 474 | ORDERED_HASHMAP_FOREACH(f, s->user_journals, i) { |
ac2e41f5 | 475 | r = journal_file_set_offline(f, false); |
26687bf8 | 476 | if (r < 0) |
65089b82 | 477 | log_warning_errno(r, "Failed to sync user journal, ignoring: %m"); |
26687bf8 OS |
478 | } |
479 | ||
f9a810be LP |
480 | if (s->sync_event_source) { |
481 | r = sd_event_source_set_enabled(s->sync_event_source, SD_EVENT_OFF); | |
482 | if (r < 0) | |
da927ba9 | 483 | log_error_errno(r, "Failed to disable sync timer source: %m"); |
f9a810be | 484 | } |
26687bf8 OS |
485 | |
486 | s->sync_scheduled = false; | |
487 | } | |
488 | ||
ea69bd41 LP |
489 | static void do_vacuum( |
490 | Server *s, | |
ea69bd41 | 491 | JournalFile *f, |
8580d1f7 LP |
492 | JournalMetrics *metrics, |
493 | const char *path, | |
494 | const char *name, | |
495 | bool verbose, | |
496 | bool patch_min_use) { | |
ea69bd41 LP |
497 | |
498 | const char *p; | |
8580d1f7 | 499 | uint64_t limit; |
63c8666b ZJS |
500 | int r; |
501 | ||
8580d1f7 LP |
502 | assert(s); |
503 | assert(metrics); | |
504 | assert(path); | |
505 | assert(name); | |
506 | ||
63c8666b ZJS |
507 | if (!f) |
508 | return; | |
509 | ||
8580d1f7 LP |
510 | p = strjoina(path, SERVER_MACHINE_ID(s)); |
511 | ||
512 | limit = metrics->max_use; | |
513 | (void) determine_space_for(s, metrics, path, name, verbose, patch_min_use, NULL, &limit); | |
514 | ||
515 | r = journal_directory_vacuum(p, limit, metrics->n_max_files, s->max_retention_usec, &s->oldest_file_usec, verbose); | |
63c8666b | 516 | if (r < 0 && r != -ENOENT) |
8580d1f7 | 517 | log_warning_errno(r, "Failed to vacuum %s, ignoring: %m", p); |
63c8666b ZJS |
518 | } |
519 | ||
8580d1f7 LP |
520 | int server_vacuum(Server *s, bool verbose, bool patch_min_use) { |
521 | assert(s); | |
d025f1e4 ZJS |
522 | |
523 | log_debug("Vacuuming..."); | |
524 | ||
525 | s->oldest_file_usec = 0; | |
526 | ||
8580d1f7 LP |
527 | do_vacuum(s, s->system_journal, &s->system_metrics, "/var/log/journal/", "System journal", verbose, patch_min_use); |
528 | do_vacuum(s, s->runtime_journal, &s->runtime_metrics, "/run/log/journal/", "Runtime journal", verbose, patch_min_use); | |
d025f1e4 | 529 | |
8580d1f7 LP |
530 | s->cached_space_limit = 0; |
531 | s->cached_space_available = 0; | |
532 | s->cached_space_timestamp = 0; | |
d025f1e4 | 533 | |
8580d1f7 | 534 | return 0; |
d025f1e4 ZJS |
535 | } |
536 | ||
0c24bb23 LP |
537 | static void server_cache_machine_id(Server *s) { |
538 | sd_id128_t id; | |
539 | int r; | |
540 | ||
541 | assert(s); | |
542 | ||
543 | r = sd_id128_get_machine(&id); | |
544 | if (r < 0) | |
545 | return; | |
546 | ||
547 | sd_id128_to_string(id, stpcpy(s->machine_id_field, "_MACHINE_ID=")); | |
548 | } | |
549 | ||
550 | static void server_cache_boot_id(Server *s) { | |
551 | sd_id128_t id; | |
552 | int r; | |
553 | ||
554 | assert(s); | |
555 | ||
556 | r = sd_id128_get_boot(&id); | |
557 | if (r < 0) | |
558 | return; | |
559 | ||
560 | sd_id128_to_string(id, stpcpy(s->boot_id_field, "_BOOT_ID=")); | |
561 | } | |
562 | ||
563 | static void server_cache_hostname(Server *s) { | |
564 | _cleanup_free_ char *t = NULL; | |
565 | char *x; | |
566 | ||
567 | assert(s); | |
568 | ||
569 | t = gethostname_malloc(); | |
570 | if (!t) | |
571 | return; | |
572 | ||
573 | x = strappend("_HOSTNAME=", t); | |
574 | if (!x) | |
575 | return; | |
576 | ||
577 | free(s->hostname_field); | |
578 | s->hostname_field = x; | |
579 | } | |
580 | ||
8531ae70 | 581 | static bool shall_try_append_again(JournalFile *f, int r) { |
6e1045e5 ZJS |
582 | switch(r) { |
583 | case -E2BIG: /* Hit configured limit */ | |
584 | case -EFBIG: /* Hit fs limit */ | |
585 | case -EDQUOT: /* Quota limit hit */ | |
586 | case -ENOSPC: /* Disk full */ | |
d025f1e4 | 587 | log_debug("%s: Allocation limit reached, rotating.", f->path); |
6e1045e5 ZJS |
588 | return true; |
589 | case -EIO: /* I/O error of some kind (mmap) */ | |
590 | log_warning("%s: IO error, rotating.", f->path); | |
591 | return true; | |
592 | case -EHOSTDOWN: /* Other machine */ | |
d025f1e4 | 593 | log_info("%s: Journal file from other machine, rotating.", f->path); |
6e1045e5 ZJS |
594 | return true; |
595 | case -EBUSY: /* Unclean shutdown */ | |
d025f1e4 | 596 | log_info("%s: Unclean shutdown, rotating.", f->path); |
6e1045e5 ZJS |
597 | return true; |
598 | case -EPROTONOSUPPORT: /* Unsupported feature */ | |
d025f1e4 | 599 | log_info("%s: Unsupported feature, rotating.", f->path); |
6e1045e5 ZJS |
600 | return true; |
601 | case -EBADMSG: /* Corrupted */ | |
602 | case -ENODATA: /* Truncated */ | |
603 | case -ESHUTDOWN: /* Already archived */ | |
d025f1e4 | 604 | log_warning("%s: Journal file corrupted, rotating.", f->path); |
6e1045e5 ZJS |
605 | return true; |
606 | case -EIDRM: /* Journal file has been deleted */ | |
2678031a | 607 | log_warning("%s: Journal file has been deleted, rotating.", f->path); |
6e1045e5 ZJS |
608 | return true; |
609 | default: | |
d025f1e4 | 610 | return false; |
6e1045e5 | 611 | } |
d025f1e4 ZJS |
612 | } |
613 | ||
d07f7b9e | 614 | static void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned n, int priority) { |
d025f1e4 ZJS |
615 | JournalFile *f; |
616 | bool vacuumed = false; | |
617 | int r; | |
618 | ||
619 | assert(s); | |
620 | assert(iovec); | |
621 | assert(n > 0); | |
622 | ||
623 | f = find_journal(s, uid); | |
624 | if (!f) | |
625 | return; | |
626 | ||
627 | if (journal_file_rotate_suggested(f, s->max_file_usec)) { | |
628 | log_debug("%s: Journal header limits reached or header out-of-date, rotating.", f->path); | |
629 | server_rotate(s); | |
8580d1f7 | 630 | server_vacuum(s, false, false); |
d025f1e4 ZJS |
631 | vacuumed = true; |
632 | ||
633 | f = find_journal(s, uid); | |
634 | if (!f) | |
635 | return; | |
636 | } | |
637 | ||
638 | r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL); | |
26687bf8 | 639 | if (r >= 0) { |
d07f7b9e | 640 | server_schedule_sync(s, priority); |
d025f1e4 | 641 | return; |
26687bf8 | 642 | } |
d025f1e4 ZJS |
643 | |
644 | if (vacuumed || !shall_try_append_again(f, r)) { | |
8266e1c0 | 645 | log_error_errno(r, "Failed to write entry (%d items, %zu bytes), ignoring: %m", n, IOVEC_TOTAL_SIZE(iovec, n)); |
d025f1e4 ZJS |
646 | return; |
647 | } | |
648 | ||
649 | server_rotate(s); | |
8580d1f7 | 650 | server_vacuum(s, false, false); |
d025f1e4 ZJS |
651 | |
652 | f = find_journal(s, uid); | |
653 | if (!f) | |
654 | return; | |
655 | ||
656 | log_debug("Retrying write."); | |
657 | r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL); | |
8266e1c0 LP |
658 | if (r < 0) |
659 | log_error_errno(r, "Failed to write entry (%d items, %zu bytes) despite vacuuming, ignoring: %m", n, IOVEC_TOTAL_SIZE(iovec, n)); | |
660 | else | |
d07f7b9e | 661 | server_schedule_sync(s, priority); |
d025f1e4 ZJS |
662 | } |
663 | ||
664 | static void dispatch_message_real( | |
665 | Server *s, | |
666 | struct iovec *iovec, unsigned n, unsigned m, | |
3b3154df LP |
667 | const struct ucred *ucred, |
668 | const struct timeval *tv, | |
d025f1e4 | 669 | const char *label, size_t label_len, |
968f3196 | 670 | const char *unit_id, |
d07f7b9e | 671 | int priority, |
968f3196 | 672 | pid_t object_pid) { |
d025f1e4 | 673 | |
968f3196 | 674 | char pid[sizeof("_PID=") + DECIMAL_STR_MAX(pid_t)], |
ae018d9b LP |
675 | uid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)], |
676 | gid[sizeof("_GID=") + DECIMAL_STR_MAX(gid_t)], | |
677 | owner_uid[sizeof("_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)], | |
d3789917 | 678 | source_time[sizeof("_SOURCE_REALTIME_TIMESTAMP=") + DECIMAL_STR_MAX(usec_t)], |
968f3196 ZJS |
679 | o_uid[sizeof("OBJECT_UID=") + DECIMAL_STR_MAX(uid_t)], |
680 | o_gid[sizeof("OBJECT_GID=") + DECIMAL_STR_MAX(gid_t)], | |
681 | o_owner_uid[sizeof("OBJECT_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)]; | |
682 | uid_t object_uid; | |
683 | gid_t object_gid; | |
968f3196 | 684 | char *x; |
d025f1e4 | 685 | int r; |
ae018d9b | 686 | char *t, *c; |
82499507 LP |
687 | uid_t realuid = 0, owner = 0, journal_uid; |
688 | bool owner_valid = false; | |
ae018d9b | 689 | #ifdef HAVE_AUDIT |
968f3196 ZJS |
690 | char audit_session[sizeof("_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)], |
691 | audit_loginuid[sizeof("_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)], | |
692 | o_audit_session[sizeof("OBJECT_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)], | |
693 | o_audit_loginuid[sizeof("OBJECT_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)]; | |
ae018d9b LP |
694 | |
695 | uint32_t audit; | |
696 | uid_t loginuid; | |
697 | #endif | |
d025f1e4 ZJS |
698 | |
699 | assert(s); | |
700 | assert(iovec); | |
701 | assert(n > 0); | |
968f3196 | 702 | assert(n + N_IOVEC_META_FIELDS + (object_pid ? N_IOVEC_OBJECT_FIELDS : 0) <= m); |
d025f1e4 ZJS |
703 | |
704 | if (ucred) { | |
d025f1e4 ZJS |
705 | realuid = ucred->uid; |
706 | ||
de0671ee | 707 | sprintf(pid, "_PID="PID_FMT, ucred->pid); |
c2457105 | 708 | IOVEC_SET_STRING(iovec[n++], pid); |
d025f1e4 | 709 | |
de0671ee | 710 | sprintf(uid, "_UID="UID_FMT, ucred->uid); |
c2457105 | 711 | IOVEC_SET_STRING(iovec[n++], uid); |
d025f1e4 | 712 | |
de0671ee | 713 | sprintf(gid, "_GID="GID_FMT, ucred->gid); |
c2457105 | 714 | IOVEC_SET_STRING(iovec[n++], gid); |
d025f1e4 ZJS |
715 | |
716 | r = get_process_comm(ucred->pid, &t); | |
717 | if (r >= 0) { | |
63c372cb | 718 | x = strjoina("_COMM=", t); |
d025f1e4 | 719 | free(t); |
968f3196 | 720 | IOVEC_SET_STRING(iovec[n++], x); |
d025f1e4 ZJS |
721 | } |
722 | ||
723 | r = get_process_exe(ucred->pid, &t); | |
724 | if (r >= 0) { | |
63c372cb | 725 | x = strjoina("_EXE=", t); |
d025f1e4 | 726 | free(t); |
968f3196 | 727 | IOVEC_SET_STRING(iovec[n++], x); |
d025f1e4 ZJS |
728 | } |
729 | ||
9bdbc2e2 | 730 | r = get_process_cmdline(ucred->pid, 0, false, &t); |
d025f1e4 | 731 | if (r >= 0) { |
63c372cb | 732 | x = strjoina("_CMDLINE=", t); |
d025f1e4 | 733 | free(t); |
3a832116 SL |
734 | IOVEC_SET_STRING(iovec[n++], x); |
735 | } | |
736 | ||
737 | r = get_process_capeff(ucred->pid, &t); | |
738 | if (r >= 0) { | |
63c372cb | 739 | x = strjoina("_CAP_EFFECTIVE=", t); |
3a832116 | 740 | free(t); |
968f3196 | 741 | IOVEC_SET_STRING(iovec[n++], x); |
d025f1e4 ZJS |
742 | } |
743 | ||
0a20e3c1 | 744 | #ifdef HAVE_AUDIT |
d025f1e4 | 745 | r = audit_session_from_pid(ucred->pid, &audit); |
ae018d9b | 746 | if (r >= 0) { |
de0671ee | 747 | sprintf(audit_session, "_AUDIT_SESSION=%"PRIu32, audit); |
ae018d9b LP |
748 | IOVEC_SET_STRING(iovec[n++], audit_session); |
749 | } | |
d025f1e4 ZJS |
750 | |
751 | r = audit_loginuid_from_pid(ucred->pid, &loginuid); | |
7027ff61 | 752 | if (r >= 0) { |
de0671ee | 753 | sprintf(audit_loginuid, "_AUDIT_LOGINUID="UID_FMT, loginuid); |
ae018d9b | 754 | IOVEC_SET_STRING(iovec[n++], audit_loginuid); |
d025f1e4 | 755 | } |
ae018d9b | 756 | #endif |
d025f1e4 | 757 | |
e9174f29 | 758 | r = cg_pid_get_path_shifted(ucred->pid, s->cgroup_root, &c); |
7027ff61 | 759 | if (r >= 0) { |
968f3196 ZJS |
760 | char *session = NULL; |
761 | ||
63c372cb | 762 | x = strjoina("_SYSTEMD_CGROUP=", c); |
968f3196 | 763 | IOVEC_SET_STRING(iovec[n++], x); |
d025f1e4 | 764 | |
ae018d9b LP |
765 | r = cg_path_get_session(c, &t); |
766 | if (r >= 0) { | |
63c372cb | 767 | session = strjoina("_SYSTEMD_SESSION=", t); |
ae018d9b | 768 | free(t); |
d025f1e4 | 769 | IOVEC_SET_STRING(iovec[n++], session); |
ae018d9b LP |
770 | } |
771 | ||
772 | if (cg_path_get_owner_uid(c, &owner) >= 0) { | |
773 | owner_valid = true; | |
d025f1e4 | 774 | |
de0671ee | 775 | sprintf(owner_uid, "_SYSTEMD_OWNER_UID="UID_FMT, owner); |
d025f1e4 | 776 | IOVEC_SET_STRING(iovec[n++], owner_uid); |
ae018d9b | 777 | } |
d025f1e4 | 778 | |
ae018d9b | 779 | if (cg_path_get_unit(c, &t) >= 0) { |
63c372cb | 780 | x = strjoina("_SYSTEMD_UNIT=", t); |
ae018d9b | 781 | free(t); |
19cace37 LP |
782 | IOVEC_SET_STRING(iovec[n++], x); |
783 | } else if (unit_id && !session) { | |
63c372cb | 784 | x = strjoina("_SYSTEMD_UNIT=", unit_id); |
19cace37 LP |
785 | IOVEC_SET_STRING(iovec[n++], x); |
786 | } | |
787 | ||
788 | if (cg_path_get_user_unit(c, &t) >= 0) { | |
63c372cb | 789 | x = strjoina("_SYSTEMD_USER_UNIT=", t); |
ae018d9b | 790 | free(t); |
968f3196 | 791 | IOVEC_SET_STRING(iovec[n++], x); |
19cace37 | 792 | } else if (unit_id && session) { |
63c372cb | 793 | x = strjoina("_SYSTEMD_USER_UNIT=", unit_id); |
19cace37 LP |
794 | IOVEC_SET_STRING(iovec[n++], x); |
795 | } | |
ae018d9b | 796 | |
0a244b8e | 797 | if (cg_path_get_slice(c, &t) >= 0) { |
63c372cb | 798 | x = strjoina("_SYSTEMD_SLICE=", t); |
0a244b8e LP |
799 | free(t); |
800 | IOVEC_SET_STRING(iovec[n++], x); | |
801 | } | |
802 | ||
ae018d9b | 803 | free(c); |
2d43b190 | 804 | } else if (unit_id) { |
63c372cb | 805 | x = strjoina("_SYSTEMD_UNIT=", unit_id); |
2d43b190 | 806 | IOVEC_SET_STRING(iovec[n++], x); |
ef1673d1 | 807 | } |
d025f1e4 | 808 | |
d025f1e4 | 809 | #ifdef HAVE_SELINUX |
6355e756 | 810 | if (mac_selinux_have()) { |
d682b3a7 | 811 | if (label) { |
f8294e41 | 812 | x = alloca(strlen("_SELINUX_CONTEXT=") + label_len + 1); |
ae018d9b | 813 | |
d682b3a7 LP |
814 | *((char*) mempcpy(stpcpy(x, "_SELINUX_CONTEXT="), label, label_len)) = 0; |
815 | IOVEC_SET_STRING(iovec[n++], x); | |
816 | } else { | |
2ed96880 | 817 | char *con; |
d025f1e4 | 818 | |
d682b3a7 | 819 | if (getpidcon(ucred->pid, &con) >= 0) { |
63c372cb | 820 | x = strjoina("_SELINUX_CONTEXT=", con); |
e7ff4e7f | 821 | |
d682b3a7 LP |
822 | freecon(con); |
823 | IOVEC_SET_STRING(iovec[n++], x); | |
824 | } | |
d025f1e4 ZJS |
825 | } |
826 | } | |
827 | #endif | |
828 | } | |
968f3196 ZJS |
829 | assert(n <= m); |
830 | ||
831 | if (object_pid) { | |
832 | r = get_process_uid(object_pid, &object_uid); | |
833 | if (r >= 0) { | |
de0671ee | 834 | sprintf(o_uid, "OBJECT_UID="UID_FMT, object_uid); |
968f3196 ZJS |
835 | IOVEC_SET_STRING(iovec[n++], o_uid); |
836 | } | |
837 | ||
838 | r = get_process_gid(object_pid, &object_gid); | |
839 | if (r >= 0) { | |
de0671ee | 840 | sprintf(o_gid, "OBJECT_GID="GID_FMT, object_gid); |
968f3196 ZJS |
841 | IOVEC_SET_STRING(iovec[n++], o_gid); |
842 | } | |
843 | ||
844 | r = get_process_comm(object_pid, &t); | |
845 | if (r >= 0) { | |
63c372cb | 846 | x = strjoina("OBJECT_COMM=", t); |
968f3196 ZJS |
847 | free(t); |
848 | IOVEC_SET_STRING(iovec[n++], x); | |
849 | } | |
850 | ||
851 | r = get_process_exe(object_pid, &t); | |
852 | if (r >= 0) { | |
63c372cb | 853 | x = strjoina("OBJECT_EXE=", t); |
968f3196 ZJS |
854 | free(t); |
855 | IOVEC_SET_STRING(iovec[n++], x); | |
856 | } | |
857 | ||
858 | r = get_process_cmdline(object_pid, 0, false, &t); | |
859 | if (r >= 0) { | |
63c372cb | 860 | x = strjoina("OBJECT_CMDLINE=", t); |
968f3196 ZJS |
861 | free(t); |
862 | IOVEC_SET_STRING(iovec[n++], x); | |
863 | } | |
864 | ||
865 | #ifdef HAVE_AUDIT | |
866 | r = audit_session_from_pid(object_pid, &audit); | |
867 | if (r >= 0) { | |
de0671ee | 868 | sprintf(o_audit_session, "OBJECT_AUDIT_SESSION=%"PRIu32, audit); |
968f3196 ZJS |
869 | IOVEC_SET_STRING(iovec[n++], o_audit_session); |
870 | } | |
871 | ||
872 | r = audit_loginuid_from_pid(object_pid, &loginuid); | |
873 | if (r >= 0) { | |
de0671ee | 874 | sprintf(o_audit_loginuid, "OBJECT_AUDIT_LOGINUID="UID_FMT, loginuid); |
968f3196 ZJS |
875 | IOVEC_SET_STRING(iovec[n++], o_audit_loginuid); |
876 | } | |
877 | #endif | |
878 | ||
e9174f29 | 879 | r = cg_pid_get_path_shifted(object_pid, s->cgroup_root, &c); |
968f3196 | 880 | if (r >= 0) { |
63c372cb | 881 | x = strjoina("OBJECT_SYSTEMD_CGROUP=", c); |
968f3196 ZJS |
882 | IOVEC_SET_STRING(iovec[n++], x); |
883 | ||
884 | r = cg_path_get_session(c, &t); | |
885 | if (r >= 0) { | |
63c372cb | 886 | x = strjoina("OBJECT_SYSTEMD_SESSION=", t); |
968f3196 ZJS |
887 | free(t); |
888 | IOVEC_SET_STRING(iovec[n++], x); | |
889 | } | |
890 | ||
891 | if (cg_path_get_owner_uid(c, &owner) >= 0) { | |
de0671ee | 892 | sprintf(o_owner_uid, "OBJECT_SYSTEMD_OWNER_UID="UID_FMT, owner); |
968f3196 ZJS |
893 | IOVEC_SET_STRING(iovec[n++], o_owner_uid); |
894 | } | |
895 | ||
896 | if (cg_path_get_unit(c, &t) >= 0) { | |
63c372cb | 897 | x = strjoina("OBJECT_SYSTEMD_UNIT=", t); |
968f3196 | 898 | free(t); |
19cace37 LP |
899 | IOVEC_SET_STRING(iovec[n++], x); |
900 | } | |
901 | ||
902 | if (cg_path_get_user_unit(c, &t) >= 0) { | |
63c372cb | 903 | x = strjoina("OBJECT_SYSTEMD_USER_UNIT=", t); |
968f3196 | 904 | free(t); |
968f3196 | 905 | IOVEC_SET_STRING(iovec[n++], x); |
19cace37 | 906 | } |
968f3196 ZJS |
907 | |
908 | free(c); | |
909 | } | |
910 | } | |
911 | assert(n <= m); | |
d025f1e4 ZJS |
912 | |
913 | if (tv) { | |
ae018d9b | 914 | sprintf(source_time, "_SOURCE_REALTIME_TIMESTAMP=%llu", (unsigned long long) timeval_load(tv)); |
a5693989 | 915 | IOVEC_SET_STRING(iovec[n++], source_time); |
d025f1e4 ZJS |
916 | } |
917 | ||
918 | /* Note that strictly speaking storing the boot id here is | |
919 | * redundant since the entry includes this in-line | |
920 | * anyway. However, we need this indexed, too. */ | |
0c24bb23 LP |
921 | if (!isempty(s->boot_id_field)) |
922 | IOVEC_SET_STRING(iovec[n++], s->boot_id_field); | |
d025f1e4 | 923 | |
0c24bb23 LP |
924 | if (!isempty(s->machine_id_field)) |
925 | IOVEC_SET_STRING(iovec[n++], s->machine_id_field); | |
d025f1e4 | 926 | |
0c24bb23 LP |
927 | if (!isempty(s->hostname_field)) |
928 | IOVEC_SET_STRING(iovec[n++], s->hostname_field); | |
d025f1e4 ZJS |
929 | |
930 | assert(n <= m); | |
931 | ||
da499392 | 932 | if (s->split_mode == SPLIT_UID && realuid > 0) |
40adcda8 | 933 | /* Split up strictly by any UID */ |
759c945a | 934 | journal_uid = realuid; |
82499507 | 935 | else if (s->split_mode == SPLIT_LOGIN && realuid > 0 && owner_valid && owner > 0) |
edc3797f LP |
936 | /* Split up by login UIDs. We do this only if the |
937 | * realuid is not root, in order not to accidentally | |
938 | * leak privileged information to the user that is | |
939 | * logged by a privileged process that is part of an | |
7517e174 | 940 | * unprivileged session. */ |
8a0889df | 941 | journal_uid = owner; |
da499392 KS |
942 | else |
943 | journal_uid = 0; | |
759c945a | 944 | |
d07f7b9e | 945 | write_to_journal(s, journal_uid, iovec, n, priority); |
d025f1e4 ZJS |
946 | } |
947 | ||
948 | void server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) { | |
949 | char mid[11 + 32 + 1]; | |
8a03c9ef ZJS |
950 | struct iovec iovec[N_IOVEC_META_FIELDS + 5 + N_IOVEC_PAYLOAD_FIELDS]; |
951 | unsigned n = 0, m; | |
32917e33 | 952 | int r; |
d025f1e4 | 953 | va_list ap; |
b92bea5d | 954 | struct ucred ucred = {}; |
d025f1e4 ZJS |
955 | |
956 | assert(s); | |
957 | assert(format); | |
958 | ||
4850d39a | 959 | assert_cc(3 == LOG_FAC(LOG_DAEMON)); |
b6fa2555 EV |
960 | IOVEC_SET_STRING(iovec[n++], "SYSLOG_FACILITY=3"); |
961 | IOVEC_SET_STRING(iovec[n++], "SYSLOG_IDENTIFIER=systemd-journald"); | |
962 | ||
d025f1e4 | 963 | IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=driver"); |
4850d39a | 964 | assert_cc(6 == LOG_INFO); |
32917e33 | 965 | IOVEC_SET_STRING(iovec[n++], "PRIORITY=6"); |
d025f1e4 | 966 | |
3bbaff3e | 967 | if (!sd_id128_is_null(message_id)) { |
e2cc6eca | 968 | snprintf(mid, sizeof(mid), LOG_MESSAGE_ID(message_id)); |
d025f1e4 ZJS |
969 | IOVEC_SET_STRING(iovec[n++], mid); |
970 | } | |
971 | ||
8a03c9ef ZJS |
972 | m = n; |
973 | ||
974 | va_start(ap, format); | |
32917e33 ZJS |
975 | r = log_format_iovec(iovec, ELEMENTSOF(iovec), &n, false, 0, format, ap); |
976 | /* Error handling below */ | |
8a03c9ef ZJS |
977 | va_end(ap); |
978 | ||
d025f1e4 ZJS |
979 | ucred.pid = getpid(); |
980 | ucred.uid = getuid(); | |
981 | ucred.gid = getgid(); | |
982 | ||
32917e33 ZJS |
983 | if (r >= 0) |
984 | dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL, NULL, 0, NULL, LOG_INFO, 0); | |
8a03c9ef ZJS |
985 | |
986 | while (m < n) | |
987 | free(iovec[m++].iov_base); | |
32917e33 ZJS |
988 | |
989 | if (r < 0) { | |
990 | /* We failed to format the message. Emit a warning instead. */ | |
991 | char buf[LINE_MAX]; | |
992 | ||
993 | xsprintf(buf, "MESSAGE=Entry printing failed: %s", strerror(-r)); | |
994 | ||
995 | n = 3; | |
996 | IOVEC_SET_STRING(iovec[n++], "PRIORITY=4"); | |
997 | IOVEC_SET_STRING(iovec[n++], buf); | |
998 | dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL, NULL, 0, NULL, LOG_INFO, 0); | |
999 | } | |
d025f1e4 ZJS |
1000 | } |
1001 | ||
1002 | void server_dispatch_message( | |
1003 | Server *s, | |
1004 | struct iovec *iovec, unsigned n, unsigned m, | |
3b3154df LP |
1005 | const struct ucred *ucred, |
1006 | const struct timeval *tv, | |
d025f1e4 ZJS |
1007 | const char *label, size_t label_len, |
1008 | const char *unit_id, | |
968f3196 ZJS |
1009 | int priority, |
1010 | pid_t object_pid) { | |
d025f1e4 | 1011 | |
7027ff61 | 1012 | int rl, r; |
7fd1b19b | 1013 | _cleanup_free_ char *path = NULL; |
8580d1f7 | 1014 | uint64_t available = 0; |
db91ea32 | 1015 | char *c; |
d025f1e4 ZJS |
1016 | |
1017 | assert(s); | |
1018 | assert(iovec || n == 0); | |
1019 | ||
1020 | if (n == 0) | |
1021 | return; | |
1022 | ||
1023 | if (LOG_PRI(priority) > s->max_level_store) | |
1024 | return; | |
1025 | ||
2f5df74a HHPF |
1026 | /* Stop early in case the information will not be stored |
1027 | * in a journal. */ | |
1028 | if (s->storage == STORAGE_NONE) | |
1029 | return; | |
1030 | ||
d025f1e4 ZJS |
1031 | if (!ucred) |
1032 | goto finish; | |
1033 | ||
e9174f29 | 1034 | r = cg_pid_get_path_shifted(ucred->pid, s->cgroup_root, &path); |
7027ff61 | 1035 | if (r < 0) |
d025f1e4 ZJS |
1036 | goto finish; |
1037 | ||
1038 | /* example: /user/lennart/3/foobar | |
1039 | * /system/dbus.service/foobar | |
1040 | * | |
1041 | * So let's cut of everything past the third /, since that is | |
1042 | * where user directories start */ | |
1043 | ||
1044 | c = strchr(path, '/'); | |
1045 | if (c) { | |
1046 | c = strchr(c+1, '/'); | |
1047 | if (c) { | |
1048 | c = strchr(c+1, '/'); | |
1049 | if (c) | |
1050 | *c = 0; | |
1051 | } | |
1052 | } | |
1053 | ||
8580d1f7 LP |
1054 | (void) determine_space(s, false, false, &available, NULL); |
1055 | rl = journal_rate_limit_test(s->rate_limit, path, priority & LOG_PRIMASK, available); | |
db91ea32 | 1056 | if (rl == 0) |
d025f1e4 | 1057 | return; |
d025f1e4 ZJS |
1058 | |
1059 | /* Write a suppression message if we suppressed something */ | |
1060 | if (rl > 1) | |
db91ea32 | 1061 | server_driver_message(s, SD_MESSAGE_JOURNAL_DROPPED, |
8a03c9ef ZJS |
1062 | LOG_MESSAGE("Suppressed %u messages from %s", rl - 1, path), |
1063 | NULL); | |
d025f1e4 ZJS |
1064 | |
1065 | finish: | |
d07f7b9e | 1066 | dispatch_message_real(s, iovec, n, m, ucred, tv, label, label_len, unit_id, priority, object_pid); |
d025f1e4 ZJS |
1067 | } |
1068 | ||
d025f1e4 | 1069 | int server_flush_to_var(Server *s) { |
d025f1e4 ZJS |
1070 | sd_id128_t machine; |
1071 | sd_journal *j = NULL; | |
fbb63411 LP |
1072 | char ts[FORMAT_TIMESPAN_MAX]; |
1073 | usec_t start; | |
1074 | unsigned n = 0; | |
1075 | int r; | |
d025f1e4 ZJS |
1076 | |
1077 | assert(s); | |
1078 | ||
1079 | if (s->storage != STORAGE_AUTO && | |
1080 | s->storage != STORAGE_PERSISTENT) | |
1081 | return 0; | |
1082 | ||
1083 | if (!s->runtime_journal) | |
1084 | return 0; | |
1085 | ||
8580d1f7 | 1086 | (void) system_journal_open(s, true); |
d025f1e4 ZJS |
1087 | |
1088 | if (!s->system_journal) | |
1089 | return 0; | |
1090 | ||
1091 | log_debug("Flushing to /var..."); | |
1092 | ||
fbb63411 LP |
1093 | start = now(CLOCK_MONOTONIC); |
1094 | ||
d025f1e4 | 1095 | r = sd_id128_get_machine(&machine); |
00a16861 | 1096 | if (r < 0) |
d025f1e4 | 1097 | return r; |
d025f1e4 ZJS |
1098 | |
1099 | r = sd_journal_open(&j, SD_JOURNAL_RUNTIME_ONLY); | |
23bbb0de MS |
1100 | if (r < 0) |
1101 | return log_error_errno(r, "Failed to read runtime journal: %m"); | |
d025f1e4 | 1102 | |
93b73b06 LP |
1103 | sd_journal_set_data_threshold(j, 0); |
1104 | ||
d025f1e4 ZJS |
1105 | SD_JOURNAL_FOREACH(j) { |
1106 | Object *o = NULL; | |
1107 | JournalFile *f; | |
1108 | ||
1109 | f = j->current_file; | |
1110 | assert(f && f->current_offset > 0); | |
1111 | ||
fbb63411 LP |
1112 | n++; |
1113 | ||
d025f1e4 ZJS |
1114 | r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); |
1115 | if (r < 0) { | |
da927ba9 | 1116 | log_error_errno(r, "Can't read entry: %m"); |
d025f1e4 ZJS |
1117 | goto finish; |
1118 | } | |
1119 | ||
1120 | r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL); | |
1121 | if (r >= 0) | |
1122 | continue; | |
1123 | ||
1124 | if (!shall_try_append_again(s->system_journal, r)) { | |
da927ba9 | 1125 | log_error_errno(r, "Can't write entry: %m"); |
d025f1e4 ZJS |
1126 | goto finish; |
1127 | } | |
1128 | ||
1129 | server_rotate(s); | |
8580d1f7 | 1130 | server_vacuum(s, false, false); |
d025f1e4 | 1131 | |
253f59df LP |
1132 | if (!s->system_journal) { |
1133 | log_notice("Didn't flush runtime journal since rotation of system journal wasn't successful."); | |
1134 | r = -EIO; | |
1135 | goto finish; | |
1136 | } | |
1137 | ||
d025f1e4 ZJS |
1138 | log_debug("Retrying write."); |
1139 | r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL); | |
1140 | if (r < 0) { | |
da927ba9 | 1141 | log_error_errno(r, "Can't write entry: %m"); |
d025f1e4 ZJS |
1142 | goto finish; |
1143 | } | |
1144 | } | |
1145 | ||
804ae586 LP |
1146 | r = 0; |
1147 | ||
d025f1e4 ZJS |
1148 | finish: |
1149 | journal_file_post_change(s->system_journal); | |
1150 | ||
804ae586 | 1151 | s->runtime_journal = journal_file_close(s->runtime_journal); |
d025f1e4 ZJS |
1152 | |
1153 | if (r >= 0) | |
c6878637 | 1154 | (void) rm_rf("/run/log/journal", REMOVE_ROOT); |
d025f1e4 | 1155 | |
763c7aa2 | 1156 | sd_journal_close(j); |
d025f1e4 | 1157 | |
8a03c9ef ZJS |
1158 | server_driver_message(s, SD_ID128_NULL, |
1159 | LOG_MESSAGE("Time spent on flushing to /var is %s for %u entries.", | |
1160 | format_timespan(ts, sizeof(ts), now(CLOCK_MONOTONIC) - start, 0), | |
1161 | n), | |
1162 | NULL); | |
fbb63411 | 1163 | |
d025f1e4 ZJS |
1164 | return r; |
1165 | } | |
1166 | ||
8531ae70 | 1167 | int server_process_datagram(sd_event_source *es, int fd, uint32_t revents, void *userdata) { |
f9a810be | 1168 | Server *s = userdata; |
a315ac4e LP |
1169 | struct ucred *ucred = NULL; |
1170 | struct timeval *tv = NULL; | |
1171 | struct cmsghdr *cmsg; | |
1172 | char *label = NULL; | |
1173 | size_t label_len = 0, m; | |
1174 | struct iovec iovec; | |
1175 | ssize_t n; | |
1176 | int *fds = NULL, v = 0; | |
1177 | unsigned n_fds = 0; | |
1178 | ||
1179 | union { | |
1180 | struct cmsghdr cmsghdr; | |
1181 | ||
1182 | /* We use NAME_MAX space for the SELinux label | |
1183 | * here. The kernel currently enforces no | |
1184 | * limit, but according to suggestions from | |
1185 | * the SELinux people this will change and it | |
1186 | * will probably be identical to NAME_MAX. For | |
1187 | * now we use that, but this should be updated | |
1188 | * one day when the final limit is known. */ | |
1189 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
1190 | CMSG_SPACE(sizeof(struct timeval)) + | |
1191 | CMSG_SPACE(sizeof(int)) + /* fd */ | |
1192 | CMSG_SPACE(NAME_MAX)]; /* selinux label */ | |
1193 | } control = {}; | |
1194 | ||
1195 | union sockaddr_union sa = {}; | |
1196 | ||
1197 | struct msghdr msghdr = { | |
1198 | .msg_iov = &iovec, | |
1199 | .msg_iovlen = 1, | |
1200 | .msg_control = &control, | |
1201 | .msg_controllen = sizeof(control), | |
1202 | .msg_name = &sa, | |
1203 | .msg_namelen = sizeof(sa), | |
1204 | }; | |
f9a810be | 1205 | |
d025f1e4 | 1206 | assert(s); |
875c2e22 | 1207 | assert(fd == s->native_fd || fd == s->syslog_fd || fd == s->audit_fd); |
f9a810be LP |
1208 | |
1209 | if (revents != EPOLLIN) { | |
1210 | log_error("Got invalid event from epoll for datagram fd: %"PRIx32, revents); | |
1211 | return -EIO; | |
1212 | } | |
1213 | ||
a315ac4e LP |
1214 | /* Try to get the right size, if we can. (Not all |
1215 | * sockets support SIOCINQ, hence we just try, but | |
1216 | * don't rely on it. */ | |
1217 | (void) ioctl(fd, SIOCINQ, &v); | |
d025f1e4 | 1218 | |
a315ac4e LP |
1219 | /* Fix it up, if it is too small. We use the same fixed value as auditd here. Awful! */ |
1220 | m = PAGE_ALIGN(MAX3((size_t) v + 1, | |
1221 | (size_t) LINE_MAX, | |
1222 | ALIGN(sizeof(struct nlmsghdr)) + ALIGN((size_t) MAX_AUDIT_MESSAGE_LENGTH)) + 1); | |
d025f1e4 | 1223 | |
a315ac4e LP |
1224 | if (!GREEDY_REALLOC(s->buffer, s->buffer_size, m)) |
1225 | return log_oom(); | |
875c2e22 | 1226 | |
a315ac4e LP |
1227 | iovec.iov_base = s->buffer; |
1228 | iovec.iov_len = s->buffer_size - 1; /* Leave room for trailing NUL we add later */ | |
d025f1e4 | 1229 | |
a315ac4e LP |
1230 | n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); |
1231 | if (n < 0) { | |
1232 | if (errno == EINTR || errno == EAGAIN) | |
1233 | return 0; | |
875c2e22 | 1234 | |
a315ac4e LP |
1235 | return log_error_errno(errno, "recvmsg() failed: %m"); |
1236 | } | |
875c2e22 | 1237 | |
a315ac4e LP |
1238 | CMSG_FOREACH(cmsg, &msghdr) { |
1239 | ||
1240 | if (cmsg->cmsg_level == SOL_SOCKET && | |
1241 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
1242 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) | |
1243 | ucred = (struct ucred*) CMSG_DATA(cmsg); | |
1244 | else if (cmsg->cmsg_level == SOL_SOCKET && | |
1245 | cmsg->cmsg_type == SCM_SECURITY) { | |
1246 | label = (char*) CMSG_DATA(cmsg); | |
1247 | label_len = cmsg->cmsg_len - CMSG_LEN(0); | |
1248 | } else if (cmsg->cmsg_level == SOL_SOCKET && | |
1249 | cmsg->cmsg_type == SO_TIMESTAMP && | |
1250 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct timeval))) | |
1251 | tv = (struct timeval*) CMSG_DATA(cmsg); | |
1252 | else if (cmsg->cmsg_level == SOL_SOCKET && | |
1253 | cmsg->cmsg_type == SCM_RIGHTS) { | |
1254 | fds = (int*) CMSG_DATA(cmsg); | |
1255 | n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int); | |
d025f1e4 | 1256 | } |
a315ac4e | 1257 | } |
d025f1e4 | 1258 | |
a315ac4e LP |
1259 | /* And a trailing NUL, just in case */ |
1260 | s->buffer[n] = 0; | |
1261 | ||
1262 | if (fd == s->syslog_fd) { | |
1263 | if (n > 0 && n_fds == 0) | |
1264 | server_process_syslog_message(s, strstrip(s->buffer), ucred, tv, label, label_len); | |
1265 | else if (n_fds > 0) | |
1266 | log_warning("Got file descriptors via syslog socket. Ignoring."); | |
1267 | ||
1268 | } else if (fd == s->native_fd) { | |
1269 | if (n > 0 && n_fds == 0) | |
1270 | server_process_native_message(s, s->buffer, n, ucred, tv, label, label_len); | |
1271 | else if (n == 0 && n_fds == 1) | |
1272 | server_process_native_file(s, fds[0], ucred, tv, label, label_len); | |
1273 | else if (n_fds > 0) | |
1274 | log_warning("Got too many file descriptors via native socket. Ignoring."); | |
1275 | ||
1276 | } else { | |
1277 | assert(fd == s->audit_fd); | |
1278 | ||
1279 | if (n > 0 && n_fds == 0) | |
1280 | server_process_audit_message(s, s->buffer, n, ucred, &sa, msghdr.msg_namelen); | |
1281 | else if (n_fds > 0) | |
1282 | log_warning("Got file descriptors via audit socket. Ignoring."); | |
f9a810be | 1283 | } |
a315ac4e LP |
1284 | |
1285 | close_many(fds, n_fds); | |
1286 | return 0; | |
f9a810be | 1287 | } |
d025f1e4 | 1288 | |
f9a810be LP |
1289 | static int dispatch_sigusr1(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) { |
1290 | Server *s = userdata; | |
33d52ab9 | 1291 | int r; |
d025f1e4 | 1292 | |
f9a810be | 1293 | assert(s); |
d025f1e4 | 1294 | |
94b65516 | 1295 | log_info("Received request to flush runtime journal from PID " PID_FMT, si->ssi_pid); |
d025f1e4 | 1296 | |
f9a810be LP |
1297 | server_flush_to_var(s); |
1298 | server_sync(s); | |
8580d1f7 | 1299 | server_vacuum(s, false, false); |
d025f1e4 | 1300 | |
33d52ab9 LP |
1301 | r = touch("/run/systemd/journal/flushed"); |
1302 | if (r < 0) | |
1303 | log_warning_errno(r, "Failed to touch /run/systemd/journal/flushed, ignoring: %m"); | |
74055aa7 | 1304 | |
f9a810be LP |
1305 | return 0; |
1306 | } | |
d025f1e4 | 1307 | |
f9a810be LP |
1308 | static int dispatch_sigusr2(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) { |
1309 | Server *s = userdata; | |
33d52ab9 | 1310 | int r; |
d025f1e4 | 1311 | |
f9a810be | 1312 | assert(s); |
d025f1e4 | 1313 | |
94b65516 | 1314 | log_info("Received request to rotate journal from PID " PID_FMT, si->ssi_pid); |
f9a810be | 1315 | server_rotate(s); |
8580d1f7 | 1316 | server_vacuum(s, true, true); |
d025f1e4 | 1317 | |
dbd6e31c | 1318 | /* Let clients know when the most recent rotation happened. */ |
33d52ab9 LP |
1319 | r = write_timestamp_file_atomic("/run/systemd/journal/rotated", now(CLOCK_MONOTONIC)); |
1320 | if (r < 0) | |
1321 | log_warning_errno(r, "Failed to write /run/systemd/journal/rotated, ignoring: %m"); | |
dbd6e31c | 1322 | |
f9a810be LP |
1323 | return 0; |
1324 | } | |
d025f1e4 | 1325 | |
f9a810be LP |
1326 | static int dispatch_sigterm(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) { |
1327 | Server *s = userdata; | |
d025f1e4 | 1328 | |
f9a810be | 1329 | assert(s); |
d025f1e4 | 1330 | |
4daf54a8 | 1331 | log_received_signal(LOG_INFO, si); |
d025f1e4 | 1332 | |
6203e07a | 1333 | sd_event_exit(s->event, 0); |
d025f1e4 ZJS |
1334 | return 0; |
1335 | } | |
1336 | ||
94b65516 LP |
1337 | static int dispatch_sigrtmin1(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) { |
1338 | Server *s = userdata; | |
33d52ab9 | 1339 | int r; |
94b65516 LP |
1340 | |
1341 | assert(s); | |
1342 | ||
1343 | log_debug("Received request to sync from PID " PID_FMT, si->ssi_pid); | |
1344 | ||
1345 | server_sync(s); | |
1346 | ||
1347 | /* Let clients know when the most recent sync happened. */ | |
33d52ab9 LP |
1348 | r = write_timestamp_file_atomic("/run/systemd/journal/synced", now(CLOCK_MONOTONIC)); |
1349 | if (r < 0) | |
1350 | log_warning_errno(r, "Failed to write /run/systemd/journal/synced, ignoring: %m"); | |
94b65516 LP |
1351 | |
1352 | return 0; | |
1353 | } | |
1354 | ||
f9a810be | 1355 | static int setup_signals(Server *s) { |
f9a810be | 1356 | int r; |
d025f1e4 ZJS |
1357 | |
1358 | assert(s); | |
1359 | ||
94b65516 | 1360 | assert(sigprocmask_many(SIG_SETMASK, NULL, SIGINT, SIGTERM, SIGUSR1, SIGUSR2, SIGRTMIN+1, -1) >= 0); |
d025f1e4 | 1361 | |
151b9b96 | 1362 | r = sd_event_add_signal(s->event, &s->sigusr1_event_source, SIGUSR1, dispatch_sigusr1, s); |
f9a810be LP |
1363 | if (r < 0) |
1364 | return r; | |
1365 | ||
151b9b96 | 1366 | r = sd_event_add_signal(s->event, &s->sigusr2_event_source, SIGUSR2, dispatch_sigusr2, s); |
f9a810be LP |
1367 | if (r < 0) |
1368 | return r; | |
d025f1e4 | 1369 | |
151b9b96 | 1370 | r = sd_event_add_signal(s->event, &s->sigterm_event_source, SIGTERM, dispatch_sigterm, s); |
f9a810be LP |
1371 | if (r < 0) |
1372 | return r; | |
d025f1e4 | 1373 | |
b374689c LP |
1374 | /* Let's process SIGTERM late, so that we flush all queued |
1375 | * messages to disk before we exit */ | |
1376 | r = sd_event_source_set_priority(s->sigterm_event_source, SD_EVENT_PRIORITY_NORMAL+20); | |
1377 | if (r < 0) | |
1378 | return r; | |
1379 | ||
1380 | /* When journald is invoked on the terminal (when debugging), | |
1381 | * it's useful if C-c is handled equivalent to SIGTERM. */ | |
151b9b96 | 1382 | r = sd_event_add_signal(s->event, &s->sigint_event_source, SIGINT, dispatch_sigterm, s); |
f9a810be LP |
1383 | if (r < 0) |
1384 | return r; | |
d025f1e4 | 1385 | |
b374689c LP |
1386 | r = sd_event_source_set_priority(s->sigint_event_source, SD_EVENT_PRIORITY_NORMAL+20); |
1387 | if (r < 0) | |
1388 | return r; | |
1389 | ||
94b65516 LP |
1390 | /* SIGRTMIN+1 causes an immediate sync. We process this very |
1391 | * late, so that everything else queued at this point is | |
1392 | * really written to disk. Clients can watch | |
1393 | * /run/systemd/journal/synced with inotify until its mtime | |
1394 | * changes to see when a sync happened. */ | |
1395 | r = sd_event_add_signal(s->event, &s->sigrtmin1_event_source, SIGRTMIN+1, dispatch_sigrtmin1, s); | |
1396 | if (r < 0) | |
1397 | return r; | |
1398 | ||
1399 | r = sd_event_source_set_priority(s->sigrtmin1_event_source, SD_EVENT_PRIORITY_NORMAL+15); | |
1400 | if (r < 0) | |
1401 | return r; | |
1402 | ||
d025f1e4 ZJS |
1403 | return 0; |
1404 | } | |
1405 | ||
1406 | static int server_parse_proc_cmdline(Server *s) { | |
7fd1b19b | 1407 | _cleanup_free_ char *line = NULL; |
d581d9d9 | 1408 | const char *p; |
74df0fca | 1409 | int r; |
d025f1e4 | 1410 | |
74df0fca | 1411 | r = proc_cmdline(&line); |
b5884878 | 1412 | if (r < 0) { |
da927ba9 | 1413 | log_warning_errno(r, "Failed to read /proc/cmdline, ignoring: %m"); |
d025f1e4 | 1414 | return 0; |
b5884878 | 1415 | } |
d025f1e4 | 1416 | |
d581d9d9 | 1417 | p = line; |
9ed794a3 | 1418 | for (;;) { |
ff82c36c | 1419 | _cleanup_free_ char *word = NULL; |
d025f1e4 | 1420 | |
d581d9d9 SS |
1421 | r = extract_first_word(&p, &word, NULL, 0); |
1422 | if (r < 0) | |
1423 | return log_error_errno(r, "Failed to parse journald syntax \"%s\": %m", line); | |
1424 | ||
1425 | if (r == 0) | |
1426 | break; | |
d025f1e4 ZJS |
1427 | |
1428 | if (startswith(word, "systemd.journald.forward_to_syslog=")) { | |
1429 | r = parse_boolean(word + 35); | |
1430 | if (r < 0) | |
1431 | log_warning("Failed to parse forward to syslog switch %s. Ignoring.", word + 35); | |
1432 | else | |
1433 | s->forward_to_syslog = r; | |
1434 | } else if (startswith(word, "systemd.journald.forward_to_kmsg=")) { | |
1435 | r = parse_boolean(word + 33); | |
1436 | if (r < 0) | |
1437 | log_warning("Failed to parse forward to kmsg switch %s. Ignoring.", word + 33); | |
1438 | else | |
1439 | s->forward_to_kmsg = r; | |
1440 | } else if (startswith(word, "systemd.journald.forward_to_console=")) { | |
1441 | r = parse_boolean(word + 36); | |
1442 | if (r < 0) | |
1443 | log_warning("Failed to parse forward to console switch %s. Ignoring.", word + 36); | |
1444 | else | |
1445 | s->forward_to_console = r; | |
40b71e89 ST |
1446 | } else if (startswith(word, "systemd.journald.forward_to_wall=")) { |
1447 | r = parse_boolean(word + 33); | |
1448 | if (r < 0) | |
1449 | log_warning("Failed to parse forward to wall switch %s. Ignoring.", word + 33); | |
1450 | else | |
1451 | s->forward_to_wall = r; | |
d025f1e4 ZJS |
1452 | } else if (startswith(word, "systemd.journald")) |
1453 | log_warning("Invalid systemd.journald parameter. Ignoring."); | |
d025f1e4 ZJS |
1454 | } |
1455 | ||
804ae586 | 1456 | /* do not warn about state here, since probably systemd already did */ |
db91ea32 | 1457 | return 0; |
d025f1e4 ZJS |
1458 | } |
1459 | ||
1460 | static int server_parse_config_file(Server *s) { | |
d025f1e4 ZJS |
1461 | assert(s); |
1462 | ||
75eb6154 LP |
1463 | return config_parse_many(PKGSYSCONFDIR "/journald.conf", |
1464 | CONF_PATHS_NULSTR("systemd/journald.conf.d"), | |
a9edaeff JT |
1465 | "Journal\0", |
1466 | config_item_perf_lookup, journald_gperf_lookup, | |
1467 | false, s); | |
d025f1e4 ZJS |
1468 | } |
1469 | ||
f9a810be LP |
1470 | static int server_dispatch_sync(sd_event_source *es, usec_t t, void *userdata) { |
1471 | Server *s = userdata; | |
26687bf8 OS |
1472 | |
1473 | assert(s); | |
1474 | ||
f9a810be | 1475 | server_sync(s); |
26687bf8 OS |
1476 | return 0; |
1477 | } | |
1478 | ||
d07f7b9e | 1479 | int server_schedule_sync(Server *s, int priority) { |
26687bf8 OS |
1480 | int r; |
1481 | ||
26687bf8 OS |
1482 | assert(s); |
1483 | ||
d07f7b9e LP |
1484 | if (priority <= LOG_CRIT) { |
1485 | /* Immediately sync to disk when this is of priority CRIT, ALERT, EMERG */ | |
1486 | server_sync(s); | |
1487 | return 0; | |
1488 | } | |
1489 | ||
26687bf8 OS |
1490 | if (s->sync_scheduled) |
1491 | return 0; | |
1492 | ||
f9a810be LP |
1493 | if (s->sync_interval_usec > 0) { |
1494 | usec_t when; | |
ca267016 | 1495 | |
6a0f1f6d | 1496 | r = sd_event_now(s->event, CLOCK_MONOTONIC, &when); |
f9a810be LP |
1497 | if (r < 0) |
1498 | return r; | |
26687bf8 | 1499 | |
f9a810be LP |
1500 | when += s->sync_interval_usec; |
1501 | ||
1502 | if (!s->sync_event_source) { | |
6a0f1f6d LP |
1503 | r = sd_event_add_time( |
1504 | s->event, | |
1505 | &s->sync_event_source, | |
1506 | CLOCK_MONOTONIC, | |
1507 | when, 0, | |
1508 | server_dispatch_sync, s); | |
f9a810be LP |
1509 | if (r < 0) |
1510 | return r; | |
1511 | ||
1512 | r = sd_event_source_set_priority(s->sync_event_source, SD_EVENT_PRIORITY_IMPORTANT); | |
1513 | } else { | |
1514 | r = sd_event_source_set_time(s->sync_event_source, when); | |
1515 | if (r < 0) | |
1516 | return r; | |
1517 | ||
1518 | r = sd_event_source_set_enabled(s->sync_event_source, SD_EVENT_ONESHOT); | |
1519 | } | |
26687bf8 | 1520 | if (r < 0) |
f9a810be | 1521 | return r; |
26687bf8 | 1522 | |
f9a810be LP |
1523 | s->sync_scheduled = true; |
1524 | } | |
26687bf8 OS |
1525 | |
1526 | return 0; | |
1527 | } | |
1528 | ||
0c24bb23 LP |
1529 | static int dispatch_hostname_change(sd_event_source *es, int fd, uint32_t revents, void *userdata) { |
1530 | Server *s = userdata; | |
1531 | ||
1532 | assert(s); | |
1533 | ||
1534 | server_cache_hostname(s); | |
1535 | return 0; | |
1536 | } | |
1537 | ||
1538 | static int server_open_hostname(Server *s) { | |
1539 | int r; | |
1540 | ||
1541 | assert(s); | |
1542 | ||
1543 | s->hostname_fd = open("/proc/sys/kernel/hostname", O_RDONLY|O_CLOEXEC|O_NDELAY|O_NOCTTY); | |
4a62c710 MS |
1544 | if (s->hostname_fd < 0) |
1545 | return log_error_errno(errno, "Failed to open /proc/sys/kernel/hostname: %m"); | |
0c24bb23 | 1546 | |
151b9b96 | 1547 | r = sd_event_add_io(s->event, &s->hostname_event_source, s->hostname_fd, 0, dispatch_hostname_change, s); |
0c24bb23 | 1548 | if (r < 0) { |
28def94c DR |
1549 | /* kernels prior to 3.2 don't support polling this file. Ignore |
1550 | * the failure. */ | |
1551 | if (r == -EPERM) { | |
e53fc357 | 1552 | log_warning_errno(r, "Failed to register hostname fd in event loop, ignoring: %m"); |
03e334a1 | 1553 | s->hostname_fd = safe_close(s->hostname_fd); |
28def94c DR |
1554 | return 0; |
1555 | } | |
1556 | ||
23bbb0de | 1557 | return log_error_errno(r, "Failed to register hostname fd in event loop: %m"); |
0c24bb23 LP |
1558 | } |
1559 | ||
1560 | r = sd_event_source_set_priority(s->hostname_event_source, SD_EVENT_PRIORITY_IMPORTANT-10); | |
23bbb0de MS |
1561 | if (r < 0) |
1562 | return log_error_errno(r, "Failed to adjust priority of host name event source: %m"); | |
0c24bb23 LP |
1563 | |
1564 | return 0; | |
1565 | } | |
1566 | ||
e22aa3d3 LP |
1567 | static int dispatch_notify_event(sd_event_source *es, int fd, uint32_t revents, void *userdata) { |
1568 | Server *s = userdata; | |
1569 | int r; | |
1570 | ||
1571 | assert(s); | |
1572 | assert(s->notify_event_source == es); | |
1573 | assert(s->notify_fd == fd); | |
1574 | ||
e22aa3d3 | 1575 | /* The $NOTIFY_SOCKET is writable again, now send exactly one |
119e9655 LP |
1576 | * message on it. Either it's the wtachdog event, the initial |
1577 | * READY=1 event or an stdout stream event. If there's nothing | |
1578 | * to write anymore, turn our event source off. The next time | |
1579 | * there's something to send it will be turned on again. */ | |
e22aa3d3 LP |
1580 | |
1581 | if (!s->sent_notify_ready) { | |
1582 | static const char p[] = | |
1583 | "READY=1\n" | |
1584 | "STATUS=Processing requests..."; | |
1585 | ssize_t l; | |
1586 | ||
1587 | l = send(s->notify_fd, p, strlen(p), MSG_DONTWAIT); | |
1588 | if (l < 0) { | |
1589 | if (errno == EAGAIN) | |
1590 | return 0; | |
1591 | ||
1592 | return log_error_errno(errno, "Failed to send READY=1 notification message: %m"); | |
1593 | } | |
1594 | ||
1595 | s->sent_notify_ready = true; | |
1596 | log_debug("Sent READY=1 notification."); | |
1597 | ||
119e9655 LP |
1598 | } else if (s->send_watchdog) { |
1599 | ||
1600 | static const char p[] = | |
1601 | "WATCHDOG=1"; | |
1602 | ||
1603 | ssize_t l; | |
1604 | ||
1605 | l = send(s->notify_fd, p, strlen(p), MSG_DONTWAIT); | |
1606 | if (l < 0) { | |
1607 | if (errno == EAGAIN) | |
1608 | return 0; | |
1609 | ||
1610 | return log_error_errno(errno, "Failed to send WATCHDOG=1 notification message: %m"); | |
1611 | } | |
1612 | ||
1613 | s->send_watchdog = false; | |
1614 | log_debug("Sent WATCHDOG=1 notification."); | |
1615 | ||
e22aa3d3 LP |
1616 | } else if (s->stdout_streams_notify_queue) |
1617 | /* Dispatch one stream notification event */ | |
1618 | stdout_stream_send_notify(s->stdout_streams_notify_queue); | |
1619 | ||
61233823 | 1620 | /* Leave us enabled if there's still more to do. */ |
119e9655 | 1621 | if (s->send_watchdog || s->stdout_streams_notify_queue) |
e22aa3d3 LP |
1622 | return 0; |
1623 | ||
1624 | /* There was nothing to do anymore, let's turn ourselves off. */ | |
1625 | r = sd_event_source_set_enabled(es, SD_EVENT_OFF); | |
1626 | if (r < 0) | |
1627 | return log_error_errno(r, "Failed to turn off notify event source: %m"); | |
1628 | ||
1629 | return 0; | |
1630 | } | |
1631 | ||
119e9655 LP |
1632 | static int dispatch_watchdog(sd_event_source *es, uint64_t usec, void *userdata) { |
1633 | Server *s = userdata; | |
1634 | int r; | |
1635 | ||
1636 | assert(s); | |
1637 | ||
1638 | s->send_watchdog = true; | |
1639 | ||
1640 | r = sd_event_source_set_enabled(s->notify_event_source, SD_EVENT_ON); | |
1641 | if (r < 0) | |
1642 | log_warning_errno(r, "Failed to turn on notify event source: %m"); | |
1643 | ||
1644 | r = sd_event_source_set_time(s->watchdog_event_source, usec + s->watchdog_usec / 2); | |
1645 | if (r < 0) | |
1646 | return log_error_errno(r, "Failed to restart watchdog event source: %m"); | |
1647 | ||
1648 | r = sd_event_source_set_enabled(s->watchdog_event_source, SD_EVENT_ON); | |
1649 | if (r < 0) | |
1650 | return log_error_errno(r, "Failed to enable watchdog event source: %m"); | |
1651 | ||
1652 | return 0; | |
1653 | } | |
1654 | ||
e22aa3d3 LP |
1655 | static int server_connect_notify(Server *s) { |
1656 | union sockaddr_union sa = { | |
1657 | .un.sun_family = AF_UNIX, | |
1658 | }; | |
1659 | const char *e; | |
1660 | int r; | |
1661 | ||
1662 | assert(s); | |
1663 | assert(s->notify_fd < 0); | |
1664 | assert(!s->notify_event_source); | |
1665 | ||
1666 | /* | |
1667 | So here's the problem: we'd like to send notification | |
1668 | messages to PID 1, but we cannot do that via sd_notify(), | |
1669 | since that's synchronous, and we might end up blocking on | |
1670 | it. Specifically: given that PID 1 might block on | |
1671 | dbus-daemon during IPC, and dbus-daemon is logging to us, | |
1672 | and might hence block on us, we might end up in a deadlock | |
ccddd104 | 1673 | if we block on sending PID 1 notification messages — by |
e22aa3d3 LP |
1674 | generating a full blocking circle. To avoid this, let's |
1675 | create a non-blocking socket, and connect it to the | |
1676 | notification socket, and then wait for POLLOUT before we | |
1677 | send anything. This should efficiently avoid any deadlocks, | |
1678 | as we'll never block on PID 1, hence PID 1 can safely block | |
1679 | on dbus-daemon which can safely block on us again. | |
1680 | ||
1681 | Don't think that this issue is real? It is, see: | |
1682 | https://github.com/systemd/systemd/issues/1505 | |
1683 | */ | |
1684 | ||
1685 | e = getenv("NOTIFY_SOCKET"); | |
1686 | if (!e) | |
1687 | return 0; | |
1688 | ||
1689 | if ((e[0] != '@' && e[0] != '/') || e[1] == 0) { | |
1690 | log_error("NOTIFY_SOCKET set to an invalid value: %s", e); | |
1691 | return -EINVAL; | |
1692 | } | |
1693 | ||
1694 | if (strlen(e) > sizeof(sa.un.sun_path)) { | |
1695 | log_error("NOTIFY_SOCKET path too long: %s", e); | |
1696 | return -EINVAL; | |
1697 | } | |
1698 | ||
1699 | s->notify_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); | |
1700 | if (s->notify_fd < 0) | |
1701 | return log_error_errno(errno, "Failed to create notify socket: %m"); | |
1702 | ||
1703 | (void) fd_inc_sndbuf(s->notify_fd, NOTIFY_SNDBUF_SIZE); | |
1704 | ||
1705 | strncpy(sa.un.sun_path, e, sizeof(sa.un.sun_path)); | |
1706 | if (sa.un.sun_path[0] == '@') | |
1707 | sa.un.sun_path[0] = 0; | |
1708 | ||
fc2fffe7 | 1709 | r = connect(s->notify_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)); |
e22aa3d3 LP |
1710 | if (r < 0) |
1711 | return log_error_errno(errno, "Failed to connect to notify socket: %m"); | |
1712 | ||
1713 | r = sd_event_add_io(s->event, &s->notify_event_source, s->notify_fd, EPOLLOUT, dispatch_notify_event, s); | |
1714 | if (r < 0) | |
1715 | return log_error_errno(r, "Failed to watch notification socket: %m"); | |
1716 | ||
119e9655 LP |
1717 | if (sd_watchdog_enabled(false, &s->watchdog_usec) > 0) { |
1718 | s->send_watchdog = true; | |
1719 | ||
4de2402b | 1720 | r = sd_event_add_time(s->event, &s->watchdog_event_source, CLOCK_MONOTONIC, now(CLOCK_MONOTONIC) + s->watchdog_usec/2, s->watchdog_usec/4, dispatch_watchdog, s); |
119e9655 LP |
1721 | if (r < 0) |
1722 | return log_error_errno(r, "Failed to add watchdog time event: %m"); | |
1723 | } | |
1724 | ||
e22aa3d3 LP |
1725 | /* This should fire pretty soon, which we'll use to send the |
1726 | * READY=1 event. */ | |
1727 | ||
1728 | return 0; | |
1729 | } | |
1730 | ||
d025f1e4 | 1731 | int server_init(Server *s) { |
13790add | 1732 | _cleanup_fdset_free_ FDSet *fds = NULL; |
d025f1e4 | 1733 | int n, r, fd; |
7d18d348 | 1734 | bool no_sockets; |
d025f1e4 ZJS |
1735 | |
1736 | assert(s); | |
1737 | ||
1738 | zero(*s); | |
e22aa3d3 | 1739 | s->syslog_fd = s->native_fd = s->stdout_fd = s->dev_kmsg_fd = s->audit_fd = s->hostname_fd = s->notify_fd = -1; |
d025f1e4 ZJS |
1740 | s->compress = true; |
1741 | s->seal = true; | |
1742 | ||
119e9655 LP |
1743 | s->watchdog_usec = USEC_INFINITY; |
1744 | ||
26687bf8 OS |
1745 | s->sync_interval_usec = DEFAULT_SYNC_INTERVAL_USEC; |
1746 | s->sync_scheduled = false; | |
1747 | ||
d025f1e4 ZJS |
1748 | s->rate_limit_interval = DEFAULT_RATE_LIMIT_INTERVAL; |
1749 | s->rate_limit_burst = DEFAULT_RATE_LIMIT_BURST; | |
1750 | ||
40b71e89 | 1751 | s->forward_to_wall = true; |
d025f1e4 | 1752 | |
e150e820 MB |
1753 | s->max_file_usec = DEFAULT_MAX_FILE_USEC; |
1754 | ||
d025f1e4 ZJS |
1755 | s->max_level_store = LOG_DEBUG; |
1756 | s->max_level_syslog = LOG_DEBUG; | |
1757 | s->max_level_kmsg = LOG_NOTICE; | |
1758 | s->max_level_console = LOG_INFO; | |
40b71e89 | 1759 | s->max_level_wall = LOG_EMERG; |
d025f1e4 | 1760 | |
8580d1f7 LP |
1761 | journal_reset_metrics(&s->system_metrics); |
1762 | journal_reset_metrics(&s->runtime_metrics); | |
d025f1e4 ZJS |
1763 | |
1764 | server_parse_config_file(s); | |
1765 | server_parse_proc_cmdline(s); | |
8580d1f7 | 1766 | |
d288f79f | 1767 | if (!!s->rate_limit_interval ^ !!s->rate_limit_burst) { |
b1389b0d ZJS |
1768 | log_debug("Setting both rate limit interval and burst from "USEC_FMT",%u to 0,0", |
1769 | s->rate_limit_interval, s->rate_limit_burst); | |
d288f79f ZJS |
1770 | s->rate_limit_interval = s->rate_limit_burst = 0; |
1771 | } | |
d025f1e4 | 1772 | |
8580d1f7 | 1773 | (void) mkdir_p("/run/systemd/journal", 0755); |
d025f1e4 | 1774 | |
43cf8388 | 1775 | s->user_journals = ordered_hashmap_new(NULL); |
d025f1e4 ZJS |
1776 | if (!s->user_journals) |
1777 | return log_oom(); | |
1778 | ||
1779 | s->mmap = mmap_cache_new(); | |
1780 | if (!s->mmap) | |
1781 | return log_oom(); | |
1782 | ||
b58c888f VC |
1783 | s->deferred_closes = set_new(NULL); |
1784 | if (!s->deferred_closes) | |
1785 | return log_oom(); | |
1786 | ||
f9a810be | 1787 | r = sd_event_default(&s->event); |
23bbb0de MS |
1788 | if (r < 0) |
1789 | return log_error_errno(r, "Failed to create event loop: %m"); | |
d025f1e4 ZJS |
1790 | |
1791 | n = sd_listen_fds(true); | |
23bbb0de MS |
1792 | if (n < 0) |
1793 | return log_error_errno(n, "Failed to read listening file descriptors from environment: %m"); | |
d025f1e4 ZJS |
1794 | |
1795 | for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) { | |
1796 | ||
1797 | if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/run/systemd/journal/socket", 0) > 0) { | |
1798 | ||
1799 | if (s->native_fd >= 0) { | |
1800 | log_error("Too many native sockets passed."); | |
1801 | return -EINVAL; | |
1802 | } | |
1803 | ||
1804 | s->native_fd = fd; | |
1805 | ||
1806 | } else if (sd_is_socket_unix(fd, SOCK_STREAM, 1, "/run/systemd/journal/stdout", 0) > 0) { | |
1807 | ||
1808 | if (s->stdout_fd >= 0) { | |
1809 | log_error("Too many stdout sockets passed."); | |
1810 | return -EINVAL; | |
1811 | } | |
1812 | ||
1813 | s->stdout_fd = fd; | |
1814 | ||
03ee5c38 LP |
1815 | } else if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/dev/log", 0) > 0 || |
1816 | sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/run/systemd/journal/dev-log", 0) > 0) { | |
d025f1e4 ZJS |
1817 | |
1818 | if (s->syslog_fd >= 0) { | |
1819 | log_error("Too many /dev/log sockets passed."); | |
1820 | return -EINVAL; | |
1821 | } | |
1822 | ||
1823 | s->syslog_fd = fd; | |
1824 | ||
875c2e22 LP |
1825 | } else if (sd_is_socket(fd, AF_NETLINK, SOCK_RAW, -1) > 0) { |
1826 | ||
1827 | if (s->audit_fd >= 0) { | |
1828 | log_error("Too many audit sockets passed."); | |
1829 | return -EINVAL; | |
1830 | } | |
1831 | ||
1832 | s->audit_fd = fd; | |
1833 | ||
4ec3cd73 | 1834 | } else { |
4ec3cd73 | 1835 | |
13790add LP |
1836 | if (!fds) { |
1837 | fds = fdset_new(); | |
1838 | if (!fds) | |
1839 | return log_oom(); | |
1840 | } | |
4ec3cd73 | 1841 | |
13790add LP |
1842 | r = fdset_put(fds, fd); |
1843 | if (r < 0) | |
1844 | return log_oom(); | |
4ec3cd73 | 1845 | } |
d025f1e4 ZJS |
1846 | } |
1847 | ||
15d91bff ZJS |
1848 | /* Try to restore streams, but don't bother if this fails */ |
1849 | (void) server_restore_streams(s, fds); | |
d025f1e4 | 1850 | |
13790add LP |
1851 | if (fdset_size(fds) > 0) { |
1852 | log_warning("%u unknown file descriptors passed, closing.", fdset_size(fds)); | |
1853 | fds = fdset_free(fds); | |
1854 | } | |
1855 | ||
7d18d348 ZJS |
1856 | no_sockets = s->native_fd < 0 && s->stdout_fd < 0 && s->syslog_fd < 0 && s->audit_fd < 0; |
1857 | ||
1858 | /* always open stdout, syslog, native, and kmsg sockets */ | |
37b7affe ZJS |
1859 | |
1860 | /* systemd-journald.socket: /run/systemd/journal/stdout */ | |
15d91bff ZJS |
1861 | r = server_open_stdout_socket(s); |
1862 | if (r < 0) | |
1863 | return r; | |
1864 | ||
37b7affe | 1865 | /* systemd-journald-dev-log.socket: /run/systemd/journal/dev-log */ |
13790add | 1866 | r = server_open_syslog_socket(s); |
d025f1e4 ZJS |
1867 | if (r < 0) |
1868 | return r; | |
1869 | ||
37b7affe | 1870 | /* systemd-journald.socket: /run/systemd/journal/socket */ |
13790add | 1871 | r = server_open_native_socket(s); |
d025f1e4 ZJS |
1872 | if (r < 0) |
1873 | return r; | |
1874 | ||
37b7affe | 1875 | /* /dev/ksmg */ |
d025f1e4 ZJS |
1876 | r = server_open_dev_kmsg(s); |
1877 | if (r < 0) | |
1878 | return r; | |
1879 | ||
7d18d348 ZJS |
1880 | /* Unless we got *some* sockets and not audit, open audit socket */ |
1881 | if (s->audit_fd >= 0 || no_sockets) { | |
1882 | r = server_open_audit(s); | |
1883 | if (r < 0) | |
1884 | return r; | |
1885 | } | |
875c2e22 | 1886 | |
d025f1e4 ZJS |
1887 | r = server_open_kernel_seqnum(s); |
1888 | if (r < 0) | |
1889 | return r; | |
1890 | ||
0c24bb23 LP |
1891 | r = server_open_hostname(s); |
1892 | if (r < 0) | |
1893 | return r; | |
1894 | ||
f9a810be | 1895 | r = setup_signals(s); |
d025f1e4 ZJS |
1896 | if (r < 0) |
1897 | return r; | |
1898 | ||
1899 | s->udev = udev_new(); | |
1900 | if (!s->udev) | |
1901 | return -ENOMEM; | |
1902 | ||
f9a810be | 1903 | s->rate_limit = journal_rate_limit_new(s->rate_limit_interval, s->rate_limit_burst); |
d025f1e4 ZJS |
1904 | if (!s->rate_limit) |
1905 | return -ENOMEM; | |
1906 | ||
e9174f29 LP |
1907 | r = cg_get_root_path(&s->cgroup_root); |
1908 | if (r < 0) | |
1909 | return r; | |
1910 | ||
0c24bb23 LP |
1911 | server_cache_hostname(s); |
1912 | server_cache_boot_id(s); | |
1913 | server_cache_machine_id(s); | |
1914 | ||
e22aa3d3 LP |
1915 | (void) server_connect_notify(s); |
1916 | ||
804ae586 | 1917 | return system_journal_open(s, false); |
d025f1e4 ZJS |
1918 | } |
1919 | ||
1920 | void server_maybe_append_tags(Server *s) { | |
1921 | #ifdef HAVE_GCRYPT | |
1922 | JournalFile *f; | |
1923 | Iterator i; | |
1924 | usec_t n; | |
1925 | ||
1926 | n = now(CLOCK_REALTIME); | |
1927 | ||
1928 | if (s->system_journal) | |
1929 | journal_file_maybe_append_tag(s->system_journal, n); | |
1930 | ||
43cf8388 | 1931 | ORDERED_HASHMAP_FOREACH(f, s->user_journals, i) |
d025f1e4 ZJS |
1932 | journal_file_maybe_append_tag(f, n); |
1933 | #endif | |
1934 | } | |
1935 | ||
1936 | void server_done(Server *s) { | |
1937 | JournalFile *f; | |
1938 | assert(s); | |
1939 | ||
b58c888f VC |
1940 | if (s->deferred_closes) { |
1941 | journal_file_close_set(s->deferred_closes); | |
1942 | set_free(s->deferred_closes); | |
1943 | } | |
1944 | ||
d025f1e4 ZJS |
1945 | while (s->stdout_streams) |
1946 | stdout_stream_free(s->stdout_streams); | |
1947 | ||
1948 | if (s->system_journal) | |
69a3a6fd | 1949 | (void) journal_file_close(s->system_journal); |
d025f1e4 ZJS |
1950 | |
1951 | if (s->runtime_journal) | |
69a3a6fd | 1952 | (void) journal_file_close(s->runtime_journal); |
d025f1e4 | 1953 | |
43cf8388 | 1954 | while ((f = ordered_hashmap_steal_first(s->user_journals))) |
69a3a6fd | 1955 | (void) journal_file_close(f); |
d025f1e4 | 1956 | |
43cf8388 | 1957 | ordered_hashmap_free(s->user_journals); |
d025f1e4 | 1958 | |
f9a810be LP |
1959 | sd_event_source_unref(s->syslog_event_source); |
1960 | sd_event_source_unref(s->native_event_source); | |
1961 | sd_event_source_unref(s->stdout_event_source); | |
1962 | sd_event_source_unref(s->dev_kmsg_event_source); | |
875c2e22 | 1963 | sd_event_source_unref(s->audit_event_source); |
f9a810be LP |
1964 | sd_event_source_unref(s->sync_event_source); |
1965 | sd_event_source_unref(s->sigusr1_event_source); | |
1966 | sd_event_source_unref(s->sigusr2_event_source); | |
1967 | sd_event_source_unref(s->sigterm_event_source); | |
1968 | sd_event_source_unref(s->sigint_event_source); | |
94b65516 | 1969 | sd_event_source_unref(s->sigrtmin1_event_source); |
0c24bb23 | 1970 | sd_event_source_unref(s->hostname_event_source); |
e22aa3d3 | 1971 | sd_event_source_unref(s->notify_event_source); |
119e9655 | 1972 | sd_event_source_unref(s->watchdog_event_source); |
f9a810be | 1973 | sd_event_unref(s->event); |
d025f1e4 | 1974 | |
03e334a1 LP |
1975 | safe_close(s->syslog_fd); |
1976 | safe_close(s->native_fd); | |
1977 | safe_close(s->stdout_fd); | |
1978 | safe_close(s->dev_kmsg_fd); | |
875c2e22 | 1979 | safe_close(s->audit_fd); |
03e334a1 | 1980 | safe_close(s->hostname_fd); |
e22aa3d3 | 1981 | safe_close(s->notify_fd); |
0c24bb23 | 1982 | |
d025f1e4 ZJS |
1983 | if (s->rate_limit) |
1984 | journal_rate_limit_free(s->rate_limit); | |
1985 | ||
1986 | if (s->kernel_seqnum) | |
1987 | munmap(s->kernel_seqnum, sizeof(uint64_t)); | |
1988 | ||
1989 | free(s->buffer); | |
1990 | free(s->tty_path); | |
e9174f29 | 1991 | free(s->cgroup_root); |
99d0966e | 1992 | free(s->hostname_field); |
d025f1e4 ZJS |
1993 | |
1994 | if (s->mmap) | |
1995 | mmap_cache_unref(s->mmap); | |
1996 | ||
3e044c49 | 1997 | udev_unref(s->udev); |
d025f1e4 | 1998 | } |
8580d1f7 LP |
1999 | |
2000 | static const char* const storage_table[_STORAGE_MAX] = { | |
2001 | [STORAGE_AUTO] = "auto", | |
2002 | [STORAGE_VOLATILE] = "volatile", | |
2003 | [STORAGE_PERSISTENT] = "persistent", | |
2004 | [STORAGE_NONE] = "none" | |
2005 | }; | |
2006 | ||
2007 | DEFINE_STRING_TABLE_LOOKUP(storage, Storage); | |
2008 | DEFINE_CONFIG_PARSE_ENUM(config_parse_storage, storage, Storage, "Failed to parse storage setting"); | |
2009 | ||
2010 | static const char* const split_mode_table[_SPLIT_MAX] = { | |
2011 | [SPLIT_LOGIN] = "login", | |
2012 | [SPLIT_UID] = "uid", | |
2013 | [SPLIT_NONE] = "none", | |
2014 | }; | |
2015 | ||
2016 | DEFINE_STRING_TABLE_LOOKUP(split_mode, SplitMode); | |
2017 | DEFINE_CONFIG_PARSE_ENUM(config_parse_split_mode, split_mode, SplitMode, "Failed to parse split mode setting"); |