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d025f1e4 ZJS |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <sys/signalfd.h> | |
23 | #include <sys/ioctl.h> | |
24 | #include <linux/sockios.h> | |
25 | #include <sys/statvfs.h> | |
26 | #include <sys/mman.h> | |
26687bf8 | 27 | #include <sys/timerfd.h> |
d025f1e4 ZJS |
28 | |
29 | #include <libudev.h> | |
30 | #include <systemd/sd-journal.h> | |
31 | #include <systemd/sd-messages.h> | |
32 | #include <systemd/sd-daemon.h> | |
33 | ||
a5c32cff | 34 | #include "fileio.h" |
d025f1e4 ZJS |
35 | #include "mkdir.h" |
36 | #include "hashmap.h" | |
37 | #include "journal-file.h" | |
38 | #include "socket-util.h" | |
39 | #include "cgroup-util.h" | |
40 | #include "list.h" | |
41 | #include "virt.h" | |
42 | #include "missing.h" | |
43 | #include "conf-parser.h" | |
44 | #include "journal-internal.h" | |
45 | #include "journal-vacuum.h" | |
46 | #include "journal-authenticate.h" | |
47 | #include "journald-server.h" | |
48 | #include "journald-rate-limit.h" | |
49 | #include "journald-kmsg.h" | |
50 | #include "journald-syslog.h" | |
51 | #include "journald-stream.h" | |
52 | #include "journald-console.h" | |
53 | #include "journald-native.h" | |
5a045dad | 54 | #include "selinux-util.h" |
d025f1e4 ZJS |
55 | |
56 | #ifdef HAVE_ACL | |
57 | #include <sys/acl.h> | |
58 | #include <acl/libacl.h> | |
59 | #include "acl-util.h" | |
60 | #endif | |
61 | ||
62 | #ifdef HAVE_SELINUX | |
63 | #include <selinux/selinux.h> | |
64 | #endif | |
65 | ||
66 | #define USER_JOURNALS_MAX 1024 | |
67 | ||
26687bf8 | 68 | #define DEFAULT_SYNC_INTERVAL_USEC (5*USEC_PER_MINUTE) |
7f1ad696 LP |
69 | #define DEFAULT_RATE_LIMIT_INTERVAL (30*USEC_PER_SEC) |
70 | #define DEFAULT_RATE_LIMIT_BURST 1000 | |
d025f1e4 ZJS |
71 | |
72 | #define RECHECK_AVAILABLE_SPACE_USEC (30*USEC_PER_SEC) | |
73 | ||
74 | static const char* const storage_table[] = { | |
75 | [STORAGE_AUTO] = "auto", | |
76 | [STORAGE_VOLATILE] = "volatile", | |
77 | [STORAGE_PERSISTENT] = "persistent", | |
78 | [STORAGE_NONE] = "none" | |
79 | }; | |
80 | ||
81 | DEFINE_STRING_TABLE_LOOKUP(storage, Storage); | |
82 | DEFINE_CONFIG_PARSE_ENUM(config_parse_storage, storage, Storage, "Failed to parse storage setting"); | |
83 | ||
84 | static const char* const split_mode_table[] = { | |
85 | [SPLIT_NONE] = "none", | |
86 | [SPLIT_UID] = "uid", | |
87 | [SPLIT_LOGIN] = "login" | |
88 | }; | |
89 | ||
90 | DEFINE_STRING_TABLE_LOOKUP(split_mode, SplitMode); | |
91 | DEFINE_CONFIG_PARSE_ENUM(config_parse_split_mode, split_mode, SplitMode, "Failed to parse split mode setting"); | |
92 | ||
670b110c | 93 | static uint64_t available_space(Server *s, bool verbose) { |
db91ea32 | 94 | char ids[33]; |
7fd1b19b | 95 | _cleanup_free_ char *p = NULL; |
d025f1e4 ZJS |
96 | sd_id128_t machine; |
97 | struct statvfs ss; | |
670b110c | 98 | uint64_t sum = 0, ss_avail = 0, avail = 0; |
d025f1e4 | 99 | int r; |
7fd1b19b | 100 | _cleanup_closedir_ DIR *d = NULL; |
d025f1e4 | 101 | usec_t ts; |
670b110c | 102 | const char *f; |
d025f1e4 ZJS |
103 | JournalMetrics *m; |
104 | ||
105 | ts = now(CLOCK_MONOTONIC); | |
106 | ||
670b110c ZJS |
107 | if (s->cached_available_space_timestamp + RECHECK_AVAILABLE_SPACE_USEC > ts |
108 | && !verbose) | |
d025f1e4 ZJS |
109 | return s->cached_available_space; |
110 | ||
111 | r = sd_id128_get_machine(&machine); | |
112 | if (r < 0) | |
113 | return 0; | |
114 | ||
115 | if (s->system_journal) { | |
116 | f = "/var/log/journal/"; | |
117 | m = &s->system_metrics; | |
118 | } else { | |
119 | f = "/run/log/journal/"; | |
120 | m = &s->runtime_metrics; | |
121 | } | |
122 | ||
123 | assert(m); | |
124 | ||
125 | p = strappend(f, sd_id128_to_string(machine, ids)); | |
126 | if (!p) | |
127 | return 0; | |
128 | ||
129 | d = opendir(p); | |
d025f1e4 ZJS |
130 | if (!d) |
131 | return 0; | |
132 | ||
133 | if (fstatvfs(dirfd(d), &ss) < 0) | |
db91ea32 | 134 | return 0; |
d025f1e4 ZJS |
135 | |
136 | for (;;) { | |
137 | struct stat st; | |
138 | struct dirent *de; | |
139 | union dirent_storage buf; | |
140 | ||
141 | r = readdir_r(d, &buf.de, &de); | |
142 | if (r != 0) | |
143 | break; | |
144 | ||
145 | if (!de) | |
146 | break; | |
147 | ||
148 | if (!endswith(de->d_name, ".journal") && | |
149 | !endswith(de->d_name, ".journal~")) | |
150 | continue; | |
151 | ||
152 | if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) | |
153 | continue; | |
154 | ||
155 | if (!S_ISREG(st.st_mode)) | |
156 | continue; | |
157 | ||
158 | sum += (uint64_t) st.st_blocks * 512UL; | |
159 | } | |
160 | ||
d025f1e4 | 161 | ss_avail = ss.f_bsize * ss.f_bavail; |
670b110c | 162 | avail = ss_avail > m->keep_free ? ss_avail - m->keep_free : 0; |
d025f1e4 | 163 | |
670b110c | 164 | s->cached_available_space = MIN(m->max_use, avail) > sum ? MIN(m->max_use, avail) - sum : 0; |
d025f1e4 ZJS |
165 | s->cached_available_space_timestamp = ts; |
166 | ||
670b110c ZJS |
167 | if (verbose) { |
168 | char fb1[FORMAT_BYTES_MAX], fb2[FORMAT_BYTES_MAX], fb3[FORMAT_BYTES_MAX], | |
169 | fb4[FORMAT_BYTES_MAX], fb5[FORMAT_BYTES_MAX]; | |
170 | ||
171 | server_driver_message(s, SD_MESSAGE_JOURNAL_USAGE, | |
172 | "%s journal is using %s (max %s, leaving %s of free %s, current limit %s).", | |
173 | s->system_journal ? "Permanent" : "Runtime", | |
174 | format_bytes(fb1, sizeof(fb1), sum), | |
175 | format_bytes(fb2, sizeof(fb2), m->max_use), | |
176 | format_bytes(fb3, sizeof(fb3), m->keep_free), | |
177 | format_bytes(fb4, sizeof(fb4), ss_avail), | |
178 | format_bytes(fb5, sizeof(fb5), MIN(m->max_use, avail))); | |
179 | } | |
180 | ||
181 | return s->cached_available_space; | |
d025f1e4 ZJS |
182 | } |
183 | ||
d025f1e4 ZJS |
184 | void server_fix_perms(Server *s, JournalFile *f, uid_t uid) { |
185 | int r; | |
186 | #ifdef HAVE_ACL | |
187 | acl_t acl; | |
188 | acl_entry_t entry; | |
189 | acl_permset_t permset; | |
190 | #endif | |
191 | ||
192 | assert(f); | |
193 | ||
4608af43 | 194 | r = fchmod(f->fd, 0640); |
d025f1e4 | 195 | if (r < 0) |
4608af43 | 196 | log_warning("Failed to fix access mode on %s, ignoring: %s", f->path, strerror(-r)); |
d025f1e4 ZJS |
197 | |
198 | #ifdef HAVE_ACL | |
199 | if (uid <= 0) | |
200 | return; | |
201 | ||
202 | acl = acl_get_fd(f->fd); | |
203 | if (!acl) { | |
204 | log_warning("Failed to read ACL on %s, ignoring: %m", f->path); | |
205 | return; | |
206 | } | |
207 | ||
208 | r = acl_find_uid(acl, uid, &entry); | |
209 | if (r <= 0) { | |
210 | ||
211 | if (acl_create_entry(&acl, &entry) < 0 || | |
212 | acl_set_tag_type(entry, ACL_USER) < 0 || | |
213 | acl_set_qualifier(entry, &uid) < 0) { | |
214 | log_warning("Failed to patch ACL on %s, ignoring: %m", f->path); | |
215 | goto finish; | |
216 | } | |
217 | } | |
218 | ||
23ad4dd8 JAS |
219 | /* We do not recalculate the mask unconditionally here, |
220 | * so that the fchmod() mask above stays intact. */ | |
d025f1e4 | 221 | if (acl_get_permset(entry, &permset) < 0 || |
23ad4dd8 JAS |
222 | acl_add_perm(permset, ACL_READ) < 0 || |
223 | calc_acl_mask_if_needed(&acl) < 0) { | |
d025f1e4 ZJS |
224 | log_warning("Failed to patch ACL on %s, ignoring: %m", f->path); |
225 | goto finish; | |
226 | } | |
227 | ||
228 | if (acl_set_fd(f->fd, acl) < 0) | |
229 | log_warning("Failed to set ACL on %s, ignoring: %m", f->path); | |
230 | ||
231 | finish: | |
232 | acl_free(acl); | |
233 | #endif | |
234 | } | |
235 | ||
236 | static JournalFile* find_journal(Server *s, uid_t uid) { | |
ed375beb | 237 | _cleanup_free_ char *p = NULL; |
d025f1e4 ZJS |
238 | int r; |
239 | JournalFile *f; | |
240 | sd_id128_t machine; | |
241 | ||
242 | assert(s); | |
243 | ||
244 | /* We split up user logs only on /var, not on /run. If the | |
245 | * runtime file is open, we write to it exclusively, in order | |
246 | * to guarantee proper order as soon as we flush /run to | |
247 | * /var and close the runtime file. */ | |
248 | ||
249 | if (s->runtime_journal) | |
250 | return s->runtime_journal; | |
251 | ||
252 | if (uid <= 0) | |
253 | return s->system_journal; | |
254 | ||
255 | r = sd_id128_get_machine(&machine); | |
256 | if (r < 0) | |
257 | return s->system_journal; | |
258 | ||
259 | f = hashmap_get(s->user_journals, UINT32_TO_PTR(uid)); | |
260 | if (f) | |
261 | return f; | |
262 | ||
263 | if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/user-%lu.journal", | |
264 | SD_ID128_FORMAT_VAL(machine), (unsigned long) uid) < 0) | |
265 | return s->system_journal; | |
266 | ||
267 | while (hashmap_size(s->user_journals) >= USER_JOURNALS_MAX) { | |
268 | /* Too many open? Then let's close one */ | |
269 | f = hashmap_steal_first(s->user_journals); | |
270 | assert(f); | |
271 | journal_file_close(f); | |
272 | } | |
273 | ||
cbd67177 | 274 | r = journal_file_open_reliably(p, O_RDWR|O_CREAT, 0640, s->compress, s->seal, &s->system_metrics, s->mmap, NULL, &f); |
d025f1e4 ZJS |
275 | if (r < 0) |
276 | return s->system_journal; | |
277 | ||
278 | server_fix_perms(s, f, uid); | |
279 | ||
280 | r = hashmap_put(s->user_journals, UINT32_TO_PTR(uid), f); | |
281 | if (r < 0) { | |
282 | journal_file_close(f); | |
283 | return s->system_journal; | |
284 | } | |
285 | ||
286 | return f; | |
287 | } | |
288 | ||
289 | void server_rotate(Server *s) { | |
290 | JournalFile *f; | |
291 | void *k; | |
292 | Iterator i; | |
293 | int r; | |
294 | ||
295 | log_debug("Rotating..."); | |
296 | ||
297 | if (s->runtime_journal) { | |
298 | r = journal_file_rotate(&s->runtime_journal, s->compress, false); | |
299 | if (r < 0) | |
300 | if (s->runtime_journal) | |
301 | log_error("Failed to rotate %s: %s", s->runtime_journal->path, strerror(-r)); | |
302 | else | |
303 | log_error("Failed to create new runtime journal: %s", strerror(-r)); | |
304 | else | |
305 | server_fix_perms(s, s->runtime_journal, 0); | |
306 | } | |
307 | ||
308 | if (s->system_journal) { | |
309 | r = journal_file_rotate(&s->system_journal, s->compress, s->seal); | |
310 | if (r < 0) | |
311 | if (s->system_journal) | |
312 | log_error("Failed to rotate %s: %s", s->system_journal->path, strerror(-r)); | |
313 | else | |
314 | log_error("Failed to create new system journal: %s", strerror(-r)); | |
315 | ||
316 | else | |
317 | server_fix_perms(s, s->system_journal, 0); | |
318 | } | |
319 | ||
320 | HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) { | |
321 | r = journal_file_rotate(&f, s->compress, s->seal); | |
322 | if (r < 0) | |
7d73c134 | 323 | if (f) |
d025f1e4 | 324 | log_error("Failed to rotate %s: %s", f->path, strerror(-r)); |
2b98f75a | 325 | else { |
d025f1e4 | 326 | log_error("Failed to create user journal: %s", strerror(-r)); |
2b98f75a ZJS |
327 | hashmap_remove(s->user_journals, k); |
328 | } | |
d025f1e4 ZJS |
329 | else { |
330 | hashmap_replace(s->user_journals, k, f); | |
331 | server_fix_perms(s, f, PTR_TO_UINT32(k)); | |
332 | } | |
333 | } | |
334 | } | |
335 | ||
26687bf8 | 336 | void server_sync(Server *s) { |
d07f7b9e | 337 | static const struct itimerspec sync_timer_disable = {}; |
26687bf8 OS |
338 | JournalFile *f; |
339 | void *k; | |
340 | Iterator i; | |
341 | int r; | |
342 | ||
26687bf8 OS |
343 | if (s->system_journal) { |
344 | r = journal_file_set_offline(s->system_journal); | |
345 | if (r < 0) | |
346 | log_error("Failed to sync system journal: %s", strerror(-r)); | |
347 | } | |
348 | ||
349 | HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) { | |
350 | r = journal_file_set_offline(f); | |
351 | if (r < 0) | |
352 | log_error("Failed to sync user journal: %s", strerror(-r)); | |
353 | } | |
354 | ||
355 | r = timerfd_settime(s->sync_timer_fd, 0, &sync_timer_disable, NULL); | |
356 | if (r < 0) | |
357 | log_error("Failed to disable max timer: %m"); | |
358 | ||
359 | s->sync_scheduled = false; | |
360 | } | |
361 | ||
d025f1e4 | 362 | void server_vacuum(Server *s) { |
d025f1e4 ZJS |
363 | char ids[33]; |
364 | sd_id128_t machine; | |
365 | int r; | |
366 | ||
367 | log_debug("Vacuuming..."); | |
368 | ||
369 | s->oldest_file_usec = 0; | |
370 | ||
371 | r = sd_id128_get_machine(&machine); | |
372 | if (r < 0) { | |
373 | log_error("Failed to get machine ID: %s", strerror(-r)); | |
374 | return; | |
375 | } | |
376 | ||
377 | sd_id128_to_string(machine, ids); | |
378 | ||
379 | if (s->system_journal) { | |
ed375beb | 380 | char *p = strappenda("/var/log/journal/", ids); |
d025f1e4 ZJS |
381 | |
382 | r = journal_directory_vacuum(p, s->system_metrics.max_use, s->system_metrics.keep_free, s->max_retention_usec, &s->oldest_file_usec); | |
383 | if (r < 0 && r != -ENOENT) | |
384 | log_error("Failed to vacuum %s: %s", p, strerror(-r)); | |
d025f1e4 ZJS |
385 | } |
386 | ||
387 | if (s->runtime_journal) { | |
ed375beb | 388 | char *p = strappenda("/run/log/journal/", ids); |
d025f1e4 ZJS |
389 | |
390 | r = journal_directory_vacuum(p, s->runtime_metrics.max_use, s->runtime_metrics.keep_free, s->max_retention_usec, &s->oldest_file_usec); | |
391 | if (r < 0 && r != -ENOENT) | |
392 | log_error("Failed to vacuum %s: %s", p, strerror(-r)); | |
d025f1e4 ZJS |
393 | } |
394 | ||
395 | s->cached_available_space_timestamp = 0; | |
396 | } | |
397 | ||
d025f1e4 ZJS |
398 | bool shall_try_append_again(JournalFile *f, int r) { |
399 | ||
400 | /* -E2BIG Hit configured limit | |
401 | -EFBIG Hit fs limit | |
402 | -EDQUOT Quota limit hit | |
403 | -ENOSPC Disk full | |
404 | -EHOSTDOWN Other machine | |
405 | -EBUSY Unclean shutdown | |
406 | -EPROTONOSUPPORT Unsupported feature | |
407 | -EBADMSG Corrupted | |
408 | -ENODATA Truncated | |
409 | -ESHUTDOWN Already archived */ | |
410 | ||
411 | if (r == -E2BIG || r == -EFBIG || r == -EDQUOT || r == -ENOSPC) | |
412 | log_debug("%s: Allocation limit reached, rotating.", f->path); | |
413 | else if (r == -EHOSTDOWN) | |
414 | log_info("%s: Journal file from other machine, rotating.", f->path); | |
415 | else if (r == -EBUSY) | |
416 | log_info("%s: Unclean shutdown, rotating.", f->path); | |
417 | else if (r == -EPROTONOSUPPORT) | |
418 | log_info("%s: Unsupported feature, rotating.", f->path); | |
419 | else if (r == -EBADMSG || r == -ENODATA || r == ESHUTDOWN) | |
420 | log_warning("%s: Journal file corrupted, rotating.", f->path); | |
421 | else | |
422 | return false; | |
423 | ||
424 | return true; | |
425 | } | |
426 | ||
d07f7b9e | 427 | static void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned n, int priority) { |
d025f1e4 ZJS |
428 | JournalFile *f; |
429 | bool vacuumed = false; | |
430 | int r; | |
431 | ||
432 | assert(s); | |
433 | assert(iovec); | |
434 | assert(n > 0); | |
435 | ||
436 | f = find_journal(s, uid); | |
437 | if (!f) | |
438 | return; | |
439 | ||
440 | if (journal_file_rotate_suggested(f, s->max_file_usec)) { | |
441 | log_debug("%s: Journal header limits reached or header out-of-date, rotating.", f->path); | |
442 | server_rotate(s); | |
443 | server_vacuum(s); | |
444 | vacuumed = true; | |
445 | ||
446 | f = find_journal(s, uid); | |
447 | if (!f) | |
448 | return; | |
449 | } | |
450 | ||
451 | r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL); | |
26687bf8 | 452 | if (r >= 0) { |
d07f7b9e | 453 | server_schedule_sync(s, priority); |
d025f1e4 | 454 | return; |
26687bf8 | 455 | } |
d025f1e4 ZJS |
456 | |
457 | if (vacuumed || !shall_try_append_again(f, r)) { | |
e40ec7ae ZJS |
458 | size_t size = 0; |
459 | unsigned i; | |
460 | for (i = 0; i < n; i++) | |
461 | size += iovec[i].iov_len; | |
462 | ||
463 | log_error("Failed to write entry (%d items, %zu bytes), ignoring: %s", n, size, strerror(-r)); | |
d025f1e4 ZJS |
464 | return; |
465 | } | |
466 | ||
467 | server_rotate(s); | |
468 | server_vacuum(s); | |
469 | ||
470 | f = find_journal(s, uid); | |
471 | if (!f) | |
472 | return; | |
473 | ||
474 | log_debug("Retrying write."); | |
475 | r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL); | |
e40ec7ae ZJS |
476 | if (r < 0) { |
477 | size_t size = 0; | |
478 | unsigned i; | |
479 | for (i = 0; i < n; i++) | |
480 | size += iovec[i].iov_len; | |
481 | ||
482 | log_error("Failed to write entry (%d items, %zu bytes) despite vacuuming, ignoring: %s", n, size, strerror(-r)); | |
d07f7b9e LP |
483 | } else |
484 | server_schedule_sync(s, priority); | |
d025f1e4 ZJS |
485 | } |
486 | ||
487 | static void dispatch_message_real( | |
488 | Server *s, | |
489 | struct iovec *iovec, unsigned n, unsigned m, | |
490 | struct ucred *ucred, | |
491 | struct timeval *tv, | |
492 | const char *label, size_t label_len, | |
968f3196 | 493 | const char *unit_id, |
d07f7b9e | 494 | int priority, |
968f3196 | 495 | pid_t object_pid) { |
d025f1e4 | 496 | |
968f3196 | 497 | char pid[sizeof("_PID=") + DECIMAL_STR_MAX(pid_t)], |
ae018d9b LP |
498 | uid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)], |
499 | gid[sizeof("_GID=") + DECIMAL_STR_MAX(gid_t)], | |
500 | owner_uid[sizeof("_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)], | |
d3789917 | 501 | source_time[sizeof("_SOURCE_REALTIME_TIMESTAMP=") + DECIMAL_STR_MAX(usec_t)], |
adb435bb | 502 | boot_id[sizeof("_BOOT_ID=") + 32] = "_BOOT_ID=", |
968f3196 ZJS |
503 | machine_id[sizeof("_MACHINE_ID=") + 32] = "_MACHINE_ID=", |
504 | o_uid[sizeof("OBJECT_UID=") + DECIMAL_STR_MAX(uid_t)], | |
505 | o_gid[sizeof("OBJECT_GID=") + DECIMAL_STR_MAX(gid_t)], | |
506 | o_owner_uid[sizeof("OBJECT_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)]; | |
507 | uid_t object_uid; | |
508 | gid_t object_gid; | |
968f3196 | 509 | char *x; |
d025f1e4 ZJS |
510 | sd_id128_t id; |
511 | int r; | |
ae018d9b | 512 | char *t, *c; |
82499507 LP |
513 | uid_t realuid = 0, owner = 0, journal_uid; |
514 | bool owner_valid = false; | |
ae018d9b | 515 | #ifdef HAVE_AUDIT |
968f3196 ZJS |
516 | char audit_session[sizeof("_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)], |
517 | audit_loginuid[sizeof("_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)], | |
518 | o_audit_session[sizeof("OBJECT_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)], | |
519 | o_audit_loginuid[sizeof("OBJECT_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)]; | |
ae018d9b LP |
520 | |
521 | uint32_t audit; | |
522 | uid_t loginuid; | |
523 | #endif | |
d025f1e4 ZJS |
524 | |
525 | assert(s); | |
526 | assert(iovec); | |
527 | assert(n > 0); | |
968f3196 | 528 | assert(n + N_IOVEC_META_FIELDS + (object_pid ? N_IOVEC_OBJECT_FIELDS : 0) <= m); |
d025f1e4 ZJS |
529 | |
530 | if (ucred) { | |
d025f1e4 ZJS |
531 | realuid = ucred->uid; |
532 | ||
ae018d9b | 533 | sprintf(pid, "_PID=%lu", (unsigned long) ucred->pid); |
c2457105 | 534 | IOVEC_SET_STRING(iovec[n++], pid); |
d025f1e4 | 535 | |
ae018d9b | 536 | sprintf(uid, "_UID=%lu", (unsigned long) ucred->uid); |
c2457105 | 537 | IOVEC_SET_STRING(iovec[n++], uid); |
d025f1e4 | 538 | |
ae018d9b | 539 | sprintf(gid, "_GID=%lu", (unsigned long) ucred->gid); |
c2457105 | 540 | IOVEC_SET_STRING(iovec[n++], gid); |
d025f1e4 ZJS |
541 | |
542 | r = get_process_comm(ucred->pid, &t); | |
543 | if (r >= 0) { | |
968f3196 | 544 | x = strappenda("_COMM=", t); |
d025f1e4 | 545 | free(t); |
968f3196 | 546 | IOVEC_SET_STRING(iovec[n++], x); |
d025f1e4 ZJS |
547 | } |
548 | ||
549 | r = get_process_exe(ucred->pid, &t); | |
550 | if (r >= 0) { | |
968f3196 | 551 | x = strappenda("_EXE=", t); |
d025f1e4 | 552 | free(t); |
968f3196 | 553 | IOVEC_SET_STRING(iovec[n++], x); |
d025f1e4 ZJS |
554 | } |
555 | ||
9bdbc2e2 | 556 | r = get_process_cmdline(ucred->pid, 0, false, &t); |
d025f1e4 | 557 | if (r >= 0) { |
968f3196 | 558 | x = strappenda("_CMDLINE=", t); |
d025f1e4 | 559 | free(t); |
3a832116 SL |
560 | IOVEC_SET_STRING(iovec[n++], x); |
561 | } | |
562 | ||
563 | r = get_process_capeff(ucred->pid, &t); | |
564 | if (r >= 0) { | |
565 | x = strappenda("_CAP_EFFECTIVE=", t); | |
566 | free(t); | |
968f3196 | 567 | IOVEC_SET_STRING(iovec[n++], x); |
d025f1e4 ZJS |
568 | } |
569 | ||
0a20e3c1 | 570 | #ifdef HAVE_AUDIT |
d025f1e4 | 571 | r = audit_session_from_pid(ucred->pid, &audit); |
ae018d9b LP |
572 | if (r >= 0) { |
573 | sprintf(audit_session, "_AUDIT_SESSION=%lu", (unsigned long) audit); | |
574 | IOVEC_SET_STRING(iovec[n++], audit_session); | |
575 | } | |
d025f1e4 ZJS |
576 | |
577 | r = audit_loginuid_from_pid(ucred->pid, &loginuid); | |
7027ff61 | 578 | if (r >= 0) { |
ae018d9b LP |
579 | sprintf(audit_loginuid, "_AUDIT_LOGINUID=%lu", (unsigned long) loginuid); |
580 | IOVEC_SET_STRING(iovec[n++], audit_loginuid); | |
d025f1e4 | 581 | } |
ae018d9b | 582 | #endif |
d025f1e4 | 583 | |
ae018d9b | 584 | r = cg_pid_get_path_shifted(ucred->pid, NULL, &c); |
7027ff61 | 585 | if (r >= 0) { |
968f3196 ZJS |
586 | char *session = NULL; |
587 | ||
588 | x = strappenda("_SYSTEMD_CGROUP=", c); | |
589 | IOVEC_SET_STRING(iovec[n++], x); | |
d025f1e4 | 590 | |
ae018d9b LP |
591 | r = cg_path_get_session(c, &t); |
592 | if (r >= 0) { | |
593 | session = strappenda("_SYSTEMD_SESSION=", t); | |
594 | free(t); | |
d025f1e4 | 595 | IOVEC_SET_STRING(iovec[n++], session); |
ae018d9b LP |
596 | } |
597 | ||
598 | if (cg_path_get_owner_uid(c, &owner) >= 0) { | |
599 | owner_valid = true; | |
d025f1e4 | 600 | |
ae018d9b | 601 | sprintf(owner_uid, "_SYSTEMD_OWNER_UID=%lu", (unsigned long) owner); |
d025f1e4 | 602 | IOVEC_SET_STRING(iovec[n++], owner_uid); |
ae018d9b | 603 | } |
d025f1e4 | 604 | |
ae018d9b | 605 | if (cg_path_get_unit(c, &t) >= 0) { |
968f3196 | 606 | x = strappenda("_SYSTEMD_UNIT=", t); |
ae018d9b | 607 | free(t); |
19cace37 LP |
608 | IOVEC_SET_STRING(iovec[n++], x); |
609 | } else if (unit_id && !session) { | |
610 | x = strappenda("_SYSTEMD_UNIT=", unit_id); | |
611 | IOVEC_SET_STRING(iovec[n++], x); | |
612 | } | |
613 | ||
614 | if (cg_path_get_user_unit(c, &t) >= 0) { | |
968f3196 | 615 | x = strappenda("_SYSTEMD_USER_UNIT=", t); |
ae018d9b | 616 | free(t); |
968f3196 | 617 | IOVEC_SET_STRING(iovec[n++], x); |
19cace37 LP |
618 | } else if (unit_id && session) { |
619 | x = strappenda("_SYSTEMD_USER_UNIT=", unit_id); | |
620 | IOVEC_SET_STRING(iovec[n++], x); | |
621 | } | |
ae018d9b | 622 | |
0a244b8e LP |
623 | if (cg_path_get_slice(c, &t) >= 0) { |
624 | x = strappenda("_SYSTEMD_SLICE=", t); | |
625 | free(t); | |
626 | IOVEC_SET_STRING(iovec[n++], x); | |
627 | } | |
628 | ||
ae018d9b | 629 | free(c); |
ef1673d1 | 630 | } |
d025f1e4 | 631 | |
d025f1e4 | 632 | #ifdef HAVE_SELINUX |
d682b3a7 LP |
633 | if (use_selinux()) { |
634 | if (label) { | |
635 | x = alloca(sizeof("_SELINUX_CONTEXT=") + label_len); | |
ae018d9b | 636 | |
d682b3a7 LP |
637 | *((char*) mempcpy(stpcpy(x, "_SELINUX_CONTEXT="), label, label_len)) = 0; |
638 | IOVEC_SET_STRING(iovec[n++], x); | |
639 | } else { | |
640 | security_context_t con; | |
d025f1e4 | 641 | |
d682b3a7 LP |
642 | if (getpidcon(ucred->pid, &con) >= 0) { |
643 | x = strappenda("_SELINUX_CONTEXT=", con); | |
e7ff4e7f | 644 | |
d682b3a7 LP |
645 | freecon(con); |
646 | IOVEC_SET_STRING(iovec[n++], x); | |
647 | } | |
d025f1e4 ZJS |
648 | } |
649 | } | |
650 | #endif | |
651 | } | |
968f3196 ZJS |
652 | assert(n <= m); |
653 | ||
654 | if (object_pid) { | |
655 | r = get_process_uid(object_pid, &object_uid); | |
656 | if (r >= 0) { | |
657 | sprintf(o_uid, "OBJECT_UID=%lu", (unsigned long) object_uid); | |
658 | IOVEC_SET_STRING(iovec[n++], o_uid); | |
659 | } | |
660 | ||
661 | r = get_process_gid(object_pid, &object_gid); | |
662 | if (r >= 0) { | |
663 | sprintf(o_gid, "OBJECT_GID=%lu", (unsigned long) object_gid); | |
664 | IOVEC_SET_STRING(iovec[n++], o_gid); | |
665 | } | |
666 | ||
667 | r = get_process_comm(object_pid, &t); | |
668 | if (r >= 0) { | |
669 | x = strappenda("OBJECT_COMM=", t); | |
670 | free(t); | |
671 | IOVEC_SET_STRING(iovec[n++], x); | |
672 | } | |
673 | ||
674 | r = get_process_exe(object_pid, &t); | |
675 | if (r >= 0) { | |
676 | x = strappenda("OBJECT_EXE=", t); | |
677 | free(t); | |
678 | IOVEC_SET_STRING(iovec[n++], x); | |
679 | } | |
680 | ||
681 | r = get_process_cmdline(object_pid, 0, false, &t); | |
682 | if (r >= 0) { | |
683 | x = strappenda("OBJECT_CMDLINE=", t); | |
684 | free(t); | |
685 | IOVEC_SET_STRING(iovec[n++], x); | |
686 | } | |
687 | ||
688 | #ifdef HAVE_AUDIT | |
689 | r = audit_session_from_pid(object_pid, &audit); | |
690 | if (r >= 0) { | |
691 | sprintf(o_audit_session, "OBJECT_AUDIT_SESSION=%lu", (unsigned long) audit); | |
692 | IOVEC_SET_STRING(iovec[n++], o_audit_session); | |
693 | } | |
694 | ||
695 | r = audit_loginuid_from_pid(object_pid, &loginuid); | |
696 | if (r >= 0) { | |
697 | sprintf(o_audit_loginuid, "OBJECT_AUDIT_LOGINUID=%lu", (unsigned long) loginuid); | |
698 | IOVEC_SET_STRING(iovec[n++], o_audit_loginuid); | |
699 | } | |
700 | #endif | |
701 | ||
702 | r = cg_pid_get_path_shifted(object_pid, NULL, &c); | |
703 | if (r >= 0) { | |
704 | x = strappenda("OBJECT_SYSTEMD_CGROUP=", c); | |
705 | IOVEC_SET_STRING(iovec[n++], x); | |
706 | ||
707 | r = cg_path_get_session(c, &t); | |
708 | if (r >= 0) { | |
709 | x = strappenda("OBJECT_SYSTEMD_SESSION=", t); | |
710 | free(t); | |
711 | IOVEC_SET_STRING(iovec[n++], x); | |
712 | } | |
713 | ||
714 | if (cg_path_get_owner_uid(c, &owner) >= 0) { | |
715 | sprintf(o_owner_uid, "OBJECT_SYSTEMD_OWNER_UID=%lu", (unsigned long) owner); | |
716 | IOVEC_SET_STRING(iovec[n++], o_owner_uid); | |
717 | } | |
718 | ||
719 | if (cg_path_get_unit(c, &t) >= 0) { | |
720 | x = strappenda("OBJECT_SYSTEMD_UNIT=", t); | |
721 | free(t); | |
19cace37 LP |
722 | IOVEC_SET_STRING(iovec[n++], x); |
723 | } | |
724 | ||
725 | if (cg_path_get_user_unit(c, &t) >= 0) { | |
968f3196 ZJS |
726 | x = strappenda("OBJECT_SYSTEMD_USER_UNIT=", t); |
727 | free(t); | |
968f3196 | 728 | IOVEC_SET_STRING(iovec[n++], x); |
19cace37 | 729 | } |
968f3196 ZJS |
730 | |
731 | free(c); | |
732 | } | |
733 | } | |
734 | assert(n <= m); | |
d025f1e4 ZJS |
735 | |
736 | if (tv) { | |
ae018d9b | 737 | sprintf(source_time, "_SOURCE_REALTIME_TIMESTAMP=%llu", (unsigned long long) timeval_load(tv)); |
a5693989 | 738 | IOVEC_SET_STRING(iovec[n++], source_time); |
d025f1e4 ZJS |
739 | } |
740 | ||
741 | /* Note that strictly speaking storing the boot id here is | |
742 | * redundant since the entry includes this in-line | |
743 | * anyway. However, we need this indexed, too. */ | |
744 | r = sd_id128_get_boot(&id); | |
adb435bb | 745 | if (r >= 0) { |
968f3196 | 746 | sd_id128_to_string(id, boot_id + strlen("_BOOT_ID=")); |
adb435bb LP |
747 | IOVEC_SET_STRING(iovec[n++], boot_id); |
748 | } | |
d025f1e4 ZJS |
749 | |
750 | r = sd_id128_get_machine(&id); | |
adb435bb | 751 | if (r >= 0) { |
968f3196 | 752 | sd_id128_to_string(id, machine_id + strlen("_MACHINE_ID=")); |
adb435bb LP |
753 | IOVEC_SET_STRING(iovec[n++], machine_id); |
754 | } | |
d025f1e4 ZJS |
755 | |
756 | t = gethostname_malloc(); | |
757 | if (t) { | |
968f3196 | 758 | x = strappenda("_HOSTNAME=", t); |
d025f1e4 | 759 | free(t); |
968f3196 | 760 | IOVEC_SET_STRING(iovec[n++], x); |
d025f1e4 ZJS |
761 | } |
762 | ||
763 | assert(n <= m); | |
764 | ||
da499392 | 765 | if (s->split_mode == SPLIT_UID && realuid > 0) |
40adcda8 | 766 | /* Split up strictly by any UID */ |
759c945a | 767 | journal_uid = realuid; |
82499507 | 768 | else if (s->split_mode == SPLIT_LOGIN && realuid > 0 && owner_valid && owner > 0) |
40adcda8 LP |
769 | /* Split up by login UIDs, this avoids creation of |
770 | * individual journals for system UIDs. We do this | |
771 | * only if the realuid is not root, in order not to | |
82499507 LP |
772 | * accidentally leak privileged information to the |
773 | * user that is logged by a privileged process that is | |
774 | * part of an unprivileged session.*/ | |
8a0889df | 775 | journal_uid = owner; |
da499392 KS |
776 | else |
777 | journal_uid = 0; | |
759c945a | 778 | |
d07f7b9e | 779 | write_to_journal(s, journal_uid, iovec, n, priority); |
d025f1e4 ZJS |
780 | } |
781 | ||
782 | void server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) { | |
783 | char mid[11 + 32 + 1]; | |
784 | char buffer[16 + LINE_MAX + 1]; | |
785 | struct iovec iovec[N_IOVEC_META_FIELDS + 4]; | |
786 | int n = 0; | |
787 | va_list ap; | |
b92bea5d | 788 | struct ucred ucred = {}; |
d025f1e4 ZJS |
789 | |
790 | assert(s); | |
791 | assert(format); | |
792 | ||
793 | IOVEC_SET_STRING(iovec[n++], "PRIORITY=6"); | |
794 | IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=driver"); | |
795 | ||
796 | memcpy(buffer, "MESSAGE=", 8); | |
797 | va_start(ap, format); | |
798 | vsnprintf(buffer + 8, sizeof(buffer) - 8, format, ap); | |
799 | va_end(ap); | |
800 | char_array_0(buffer); | |
801 | IOVEC_SET_STRING(iovec[n++], buffer); | |
802 | ||
803 | if (!sd_id128_equal(message_id, SD_ID128_NULL)) { | |
804 | snprintf(mid, sizeof(mid), MESSAGE_ID(message_id)); | |
805 | char_array_0(mid); | |
806 | IOVEC_SET_STRING(iovec[n++], mid); | |
807 | } | |
808 | ||
d025f1e4 ZJS |
809 | ucred.pid = getpid(); |
810 | ucred.uid = getuid(); | |
811 | ucred.gid = getgid(); | |
812 | ||
d07f7b9e | 813 | dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL, NULL, 0, NULL, LOG_INFO, 0); |
d025f1e4 ZJS |
814 | } |
815 | ||
816 | void server_dispatch_message( | |
817 | Server *s, | |
818 | struct iovec *iovec, unsigned n, unsigned m, | |
819 | struct ucred *ucred, | |
820 | struct timeval *tv, | |
821 | const char *label, size_t label_len, | |
822 | const char *unit_id, | |
968f3196 ZJS |
823 | int priority, |
824 | pid_t object_pid) { | |
d025f1e4 | 825 | |
7027ff61 | 826 | int rl, r; |
7fd1b19b | 827 | _cleanup_free_ char *path = NULL; |
db91ea32 | 828 | char *c; |
d025f1e4 ZJS |
829 | |
830 | assert(s); | |
831 | assert(iovec || n == 0); | |
832 | ||
833 | if (n == 0) | |
834 | return; | |
835 | ||
836 | if (LOG_PRI(priority) > s->max_level_store) | |
837 | return; | |
838 | ||
2f5df74a HHPF |
839 | /* Stop early in case the information will not be stored |
840 | * in a journal. */ | |
841 | if (s->storage == STORAGE_NONE) | |
842 | return; | |
843 | ||
d025f1e4 ZJS |
844 | if (!ucred) |
845 | goto finish; | |
846 | ||
7027ff61 LP |
847 | r = cg_pid_get_path_shifted(ucred->pid, NULL, &path); |
848 | if (r < 0) | |
d025f1e4 ZJS |
849 | goto finish; |
850 | ||
851 | /* example: /user/lennart/3/foobar | |
852 | * /system/dbus.service/foobar | |
853 | * | |
854 | * So let's cut of everything past the third /, since that is | |
855 | * where user directories start */ | |
856 | ||
857 | c = strchr(path, '/'); | |
858 | if (c) { | |
859 | c = strchr(c+1, '/'); | |
860 | if (c) { | |
861 | c = strchr(c+1, '/'); | |
862 | if (c) | |
863 | *c = 0; | |
864 | } | |
865 | } | |
866 | ||
db91ea32 | 867 | rl = journal_rate_limit_test(s->rate_limit, path, |
670b110c | 868 | priority & LOG_PRIMASK, available_space(s, false)); |
d025f1e4 | 869 | |
db91ea32 | 870 | if (rl == 0) |
d025f1e4 | 871 | return; |
d025f1e4 ZJS |
872 | |
873 | /* Write a suppression message if we suppressed something */ | |
874 | if (rl > 1) | |
db91ea32 ZJS |
875 | server_driver_message(s, SD_MESSAGE_JOURNAL_DROPPED, |
876 | "Suppressed %u messages from %s", rl - 1, path); | |
d025f1e4 ZJS |
877 | |
878 | finish: | |
d07f7b9e | 879 | dispatch_message_real(s, iovec, n, m, ucred, tv, label, label_len, unit_id, priority, object_pid); |
d025f1e4 ZJS |
880 | } |
881 | ||
882 | ||
883 | static int system_journal_open(Server *s) { | |
884 | int r; | |
885 | char *fn; | |
886 | sd_id128_t machine; | |
887 | char ids[33]; | |
888 | ||
889 | r = sd_id128_get_machine(&machine); | |
00a16861 OB |
890 | if (r < 0) { |
891 | log_error("Failed to get machine id: %s", strerror(-r)); | |
d025f1e4 | 892 | return r; |
00a16861 | 893 | } |
d025f1e4 ZJS |
894 | |
895 | sd_id128_to_string(machine, ids); | |
896 | ||
897 | if (!s->system_journal && | |
898 | (s->storage == STORAGE_PERSISTENT || s->storage == STORAGE_AUTO) && | |
899 | access("/run/systemd/journal/flushed", F_OK) >= 0) { | |
900 | ||
901 | /* If in auto mode: first try to create the machine | |
902 | * path, but not the prefix. | |
903 | * | |
904 | * If in persistent mode: create /var/log/journal and | |
905 | * the machine path */ | |
906 | ||
907 | if (s->storage == STORAGE_PERSISTENT) | |
908 | (void) mkdir("/var/log/journal/", 0755); | |
909 | ||
e40ec7ae | 910 | fn = strappenda("/var/log/journal/", ids); |
d025f1e4 | 911 | (void) mkdir(fn, 0755); |
d025f1e4 | 912 | |
e40ec7ae | 913 | fn = strappenda(fn, "/system.journal"); |
d025f1e4 | 914 | r = journal_file_open_reliably(fn, O_RDWR|O_CREAT, 0640, s->compress, s->seal, &s->system_metrics, s->mmap, NULL, &s->system_journal); |
d025f1e4 | 915 | |
670b110c | 916 | if (r >= 0) |
d025f1e4 | 917 | server_fix_perms(s, s->system_journal, 0); |
433dd100 LN |
918 | else if (r < 0) { |
919 | if (r != -ENOENT && r != -EROFS) | |
920 | log_warning("Failed to open system journal: %s", strerror(-r)); | |
e40ec7ae | 921 | |
433dd100 LN |
922 | r = 0; |
923 | } | |
d025f1e4 ZJS |
924 | } |
925 | ||
926 | if (!s->runtime_journal && | |
927 | (s->storage != STORAGE_NONE)) { | |
928 | ||
929 | fn = strjoin("/run/log/journal/", ids, "/system.journal", NULL); | |
930 | if (!fn) | |
931 | return -ENOMEM; | |
932 | ||
933 | if (s->system_journal) { | |
934 | ||
935 | /* Try to open the runtime journal, but only | |
936 | * if it already exists, so that we can flush | |
937 | * it into the system journal */ | |
938 | ||
939 | r = journal_file_open(fn, O_RDWR, 0640, s->compress, false, &s->runtime_metrics, s->mmap, NULL, &s->runtime_journal); | |
940 | free(fn); | |
941 | ||
942 | if (r < 0) { | |
943 | if (r != -ENOENT) | |
944 | log_warning("Failed to open runtime journal: %s", strerror(-r)); | |
945 | ||
946 | r = 0; | |
947 | } | |
948 | ||
949 | } else { | |
950 | ||
951 | /* OK, we really need the runtime journal, so create | |
952 | * it if necessary. */ | |
953 | ||
954 | (void) mkdir_parents(fn, 0755); | |
955 | r = journal_file_open_reliably(fn, O_RDWR|O_CREAT, 0640, s->compress, false, &s->runtime_metrics, s->mmap, NULL, &s->runtime_journal); | |
956 | free(fn); | |
957 | ||
958 | if (r < 0) { | |
959 | log_error("Failed to open runtime journal: %s", strerror(-r)); | |
960 | return r; | |
961 | } | |
962 | } | |
963 | ||
670b110c | 964 | if (s->runtime_journal) |
d025f1e4 | 965 | server_fix_perms(s, s->runtime_journal, 0); |
d025f1e4 ZJS |
966 | } |
967 | ||
670b110c ZJS |
968 | available_space(s, true); |
969 | ||
d025f1e4 ZJS |
970 | return r; |
971 | } | |
972 | ||
973 | int server_flush_to_var(Server *s) { | |
974 | int r; | |
975 | sd_id128_t machine; | |
976 | sd_journal *j = NULL; | |
977 | ||
978 | assert(s); | |
979 | ||
980 | if (s->storage != STORAGE_AUTO && | |
981 | s->storage != STORAGE_PERSISTENT) | |
982 | return 0; | |
983 | ||
984 | if (!s->runtime_journal) | |
985 | return 0; | |
986 | ||
987 | system_journal_open(s); | |
988 | ||
989 | if (!s->system_journal) | |
990 | return 0; | |
991 | ||
992 | log_debug("Flushing to /var..."); | |
993 | ||
994 | r = sd_id128_get_machine(&machine); | |
00a16861 | 995 | if (r < 0) |
d025f1e4 | 996 | return r; |
d025f1e4 ZJS |
997 | |
998 | r = sd_journal_open(&j, SD_JOURNAL_RUNTIME_ONLY); | |
999 | if (r < 0) { | |
1000 | log_error("Failed to read runtime journal: %s", strerror(-r)); | |
1001 | return r; | |
1002 | } | |
1003 | ||
93b73b06 LP |
1004 | sd_journal_set_data_threshold(j, 0); |
1005 | ||
d025f1e4 ZJS |
1006 | SD_JOURNAL_FOREACH(j) { |
1007 | Object *o = NULL; | |
1008 | JournalFile *f; | |
1009 | ||
1010 | f = j->current_file; | |
1011 | assert(f && f->current_offset > 0); | |
1012 | ||
1013 | r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); | |
1014 | if (r < 0) { | |
1015 | log_error("Can't read entry: %s", strerror(-r)); | |
1016 | goto finish; | |
1017 | } | |
1018 | ||
1019 | r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL); | |
1020 | if (r >= 0) | |
1021 | continue; | |
1022 | ||
1023 | if (!shall_try_append_again(s->system_journal, r)) { | |
1024 | log_error("Can't write entry: %s", strerror(-r)); | |
1025 | goto finish; | |
1026 | } | |
1027 | ||
1028 | server_rotate(s); | |
1029 | server_vacuum(s); | |
1030 | ||
253f59df LP |
1031 | if (!s->system_journal) { |
1032 | log_notice("Didn't flush runtime journal since rotation of system journal wasn't successful."); | |
1033 | r = -EIO; | |
1034 | goto finish; | |
1035 | } | |
1036 | ||
d025f1e4 ZJS |
1037 | log_debug("Retrying write."); |
1038 | r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL); | |
1039 | if (r < 0) { | |
1040 | log_error("Can't write entry: %s", strerror(-r)); | |
1041 | goto finish; | |
1042 | } | |
1043 | } | |
1044 | ||
1045 | finish: | |
1046 | journal_file_post_change(s->system_journal); | |
1047 | ||
1048 | journal_file_close(s->runtime_journal); | |
1049 | s->runtime_journal = NULL; | |
1050 | ||
1051 | if (r >= 0) | |
1052 | rm_rf("/run/log/journal", false, true, false); | |
1053 | ||
763c7aa2 | 1054 | sd_journal_close(j); |
d025f1e4 ZJS |
1055 | |
1056 | return r; | |
1057 | } | |
1058 | ||
1059 | int process_event(Server *s, struct epoll_event *ev) { | |
1060 | assert(s); | |
1061 | assert(ev); | |
1062 | ||
1063 | if (ev->data.fd == s->signal_fd) { | |
1064 | struct signalfd_siginfo sfsi; | |
1065 | ssize_t n; | |
1066 | ||
1067 | if (ev->events != EPOLLIN) { | |
5843c5eb ZJS |
1068 | log_error("Got invalid event from epoll for %s: %"PRIx32, |
1069 | "signal fd", ev->events); | |
d025f1e4 ZJS |
1070 | return -EIO; |
1071 | } | |
1072 | ||
1073 | n = read(s->signal_fd, &sfsi, sizeof(sfsi)); | |
1074 | if (n != sizeof(sfsi)) { | |
1075 | ||
1076 | if (n >= 0) | |
1077 | return -EIO; | |
1078 | ||
1079 | if (errno == EINTR || errno == EAGAIN) | |
1080 | return 1; | |
1081 | ||
1082 | return -errno; | |
1083 | } | |
1084 | ||
d025f1e4 | 1085 | if (sfsi.ssi_signo == SIGUSR1) { |
289f910e ZJS |
1086 | log_info("Received request to flush runtime journal from PID %"PRIu32, |
1087 | sfsi.ssi_pid); | |
d025f1e4 ZJS |
1088 | touch("/run/systemd/journal/flushed"); |
1089 | server_flush_to_var(s); | |
26687bf8 | 1090 | server_sync(s); |
d025f1e4 ZJS |
1091 | return 1; |
1092 | } | |
1093 | ||
1094 | if (sfsi.ssi_signo == SIGUSR2) { | |
289f910e ZJS |
1095 | log_info("Received request to rotate journal from PID %"PRIu32, |
1096 | sfsi.ssi_pid); | |
d025f1e4 ZJS |
1097 | server_rotate(s); |
1098 | server_vacuum(s); | |
1099 | return 1; | |
1100 | } | |
1101 | ||
26687bf8 OS |
1102 | log_info("Received SIG%s", signal_to_string(sfsi.ssi_signo)); |
1103 | ||
d025f1e4 ZJS |
1104 | return 0; |
1105 | ||
26687bf8 OS |
1106 | } else if (ev->data.fd == s->sync_timer_fd) { |
1107 | int r; | |
1108 | uint64_t t; | |
1109 | ||
1110 | log_debug("Got sync request from epoll."); | |
1111 | ||
1112 | r = read(ev->data.fd, (void *)&t, sizeof(t)); | |
1113 | if (r < 0) | |
1114 | return 0; | |
1115 | ||
1116 | server_sync(s); | |
1117 | return 1; | |
1118 | ||
d025f1e4 ZJS |
1119 | } else if (ev->data.fd == s->dev_kmsg_fd) { |
1120 | int r; | |
1121 | ||
5843c5eb ZJS |
1122 | if (ev->events & EPOLLERR) |
1123 | log_warning("/dev/kmsg buffer overrun, some messages lost."); | |
1124 | ||
1125 | if (!(ev->events & EPOLLIN)) { | |
1126 | log_error("Got invalid event from epoll for %s: %"PRIx32, | |
1127 | "/dev/kmsg", ev->events); | |
d025f1e4 ZJS |
1128 | return -EIO; |
1129 | } | |
1130 | ||
1131 | r = server_read_dev_kmsg(s); | |
1132 | if (r < 0) | |
1133 | return r; | |
1134 | ||
1135 | return 1; | |
1136 | ||
1137 | } else if (ev->data.fd == s->native_fd || | |
1138 | ev->data.fd == s->syslog_fd) { | |
1139 | ||
1140 | if (ev->events != EPOLLIN) { | |
5843c5eb ZJS |
1141 | log_error("Got invalid event from epoll for %s: %"PRIx32, |
1142 | ev->data.fd == s->native_fd ? "native fd" : "syslog fd", | |
1143 | ev->events); | |
d025f1e4 ZJS |
1144 | return -EIO; |
1145 | } | |
1146 | ||
1147 | for (;;) { | |
d025f1e4 ZJS |
1148 | struct ucred *ucred = NULL; |
1149 | struct timeval *tv = NULL; | |
1150 | struct cmsghdr *cmsg; | |
1151 | char *label = NULL; | |
1152 | size_t label_len = 0; | |
7ca9dffa ZJS |
1153 | |
1154 | struct iovec iovec; | |
d025f1e4 ZJS |
1155 | union { |
1156 | struct cmsghdr cmsghdr; | |
1157 | ||
1158 | /* We use NAME_MAX space for the | |
1159 | * SELinux label here. The kernel | |
1160 | * currently enforces no limit, but | |
1161 | * according to suggestions from the | |
1162 | * SELinux people this will change and | |
1163 | * it will probably be identical to | |
1164 | * NAME_MAX. For now we use that, but | |
1165 | * this should be updated one day when | |
1166 | * the final limit is known.*/ | |
1167 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
1168 | CMSG_SPACE(sizeof(struct timeval)) + | |
1169 | CMSG_SPACE(sizeof(int)) + /* fd */ | |
1170 | CMSG_SPACE(NAME_MAX)]; /* selinux label */ | |
7ca9dffa ZJS |
1171 | } control = {}; |
1172 | struct msghdr msghdr = { | |
1173 | .msg_iov = &iovec, | |
1174 | .msg_iovlen = 1, | |
1175 | .msg_control = &control, | |
1176 | .msg_controllen = sizeof(control), | |
1177 | }; | |
1178 | ||
d025f1e4 ZJS |
1179 | ssize_t n; |
1180 | int v; | |
1181 | int *fds = NULL; | |
1182 | unsigned n_fds = 0; | |
1183 | ||
1184 | if (ioctl(ev->data.fd, SIOCINQ, &v) < 0) { | |
1185 | log_error("SIOCINQ failed: %m"); | |
1186 | return -errno; | |
1187 | } | |
1188 | ||
7ca9dffa ZJS |
1189 | if (!GREEDY_REALLOC(s->buffer, s->buffer_size, LINE_MAX + (size_t) v)) |
1190 | return log_oom(); | |
d025f1e4 | 1191 | |
d025f1e4 ZJS |
1192 | iovec.iov_base = s->buffer; |
1193 | iovec.iov_len = s->buffer_size; | |
1194 | ||
d025f1e4 ZJS |
1195 | n = recvmsg(ev->data.fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); |
1196 | if (n < 0) { | |
d025f1e4 ZJS |
1197 | if (errno == EINTR || errno == EAGAIN) |
1198 | return 1; | |
1199 | ||
1200 | log_error("recvmsg() failed: %m"); | |
1201 | return -errno; | |
1202 | } | |
1203 | ||
1204 | for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg; cmsg = CMSG_NXTHDR(&msghdr, cmsg)) { | |
1205 | ||
1206 | if (cmsg->cmsg_level == SOL_SOCKET && | |
1207 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
1208 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) | |
1209 | ucred = (struct ucred*) CMSG_DATA(cmsg); | |
1210 | else if (cmsg->cmsg_level == SOL_SOCKET && | |
1211 | cmsg->cmsg_type == SCM_SECURITY) { | |
1212 | label = (char*) CMSG_DATA(cmsg); | |
1213 | label_len = cmsg->cmsg_len - CMSG_LEN(0); | |
1214 | } else if (cmsg->cmsg_level == SOL_SOCKET && | |
670b110c ZJS |
1215 | cmsg->cmsg_type == SO_TIMESTAMP && |
1216 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct timeval))) | |
d025f1e4 ZJS |
1217 | tv = (struct timeval*) CMSG_DATA(cmsg); |
1218 | else if (cmsg->cmsg_level == SOL_SOCKET && | |
1219 | cmsg->cmsg_type == SCM_RIGHTS) { | |
1220 | fds = (int*) CMSG_DATA(cmsg); | |
1221 | n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int); | |
1222 | } | |
1223 | } | |
1224 | ||
1225 | if (ev->data.fd == s->syslog_fd) { | |
d025f1e4 | 1226 | if (n > 0 && n_fds == 0) { |
04fefcdd | 1227 | s->buffer[n] = 0; |
d025f1e4 ZJS |
1228 | server_process_syslog_message(s, strstrip(s->buffer), ucred, tv, label, label_len); |
1229 | } else if (n_fds > 0) | |
1230 | log_warning("Got file descriptors via syslog socket. Ignoring."); | |
1231 | ||
1232 | } else { | |
1233 | if (n > 0 && n_fds == 0) | |
1234 | server_process_native_message(s, s->buffer, n, ucred, tv, label, label_len); | |
1235 | else if (n == 0 && n_fds == 1) | |
1236 | server_process_native_file(s, fds[0], ucred, tv, label, label_len); | |
1237 | else if (n_fds > 0) | |
1238 | log_warning("Got too many file descriptors via native socket. Ignoring."); | |
1239 | } | |
1240 | ||
1241 | close_many(fds, n_fds); | |
1242 | } | |
1243 | ||
1244 | return 1; | |
1245 | ||
1246 | } else if (ev->data.fd == s->stdout_fd) { | |
1247 | ||
1248 | if (ev->events != EPOLLIN) { | |
5843c5eb ZJS |
1249 | log_error("Got invalid event from epoll for %s: %"PRIx32, |
1250 | "stdout fd", ev->events); | |
d025f1e4 ZJS |
1251 | return -EIO; |
1252 | } | |
1253 | ||
1254 | stdout_stream_new(s); | |
1255 | return 1; | |
1256 | ||
1257 | } else { | |
1258 | StdoutStream *stream; | |
1259 | ||
1260 | if ((ev->events|EPOLLIN|EPOLLHUP) != (EPOLLIN|EPOLLHUP)) { | |
5843c5eb ZJS |
1261 | log_error("Got invalid event from epoll for %s: %"PRIx32, |
1262 | "stdout stream", ev->events); | |
d025f1e4 ZJS |
1263 | return -EIO; |
1264 | } | |
1265 | ||
1266 | /* If it is none of the well-known fds, it must be an | |
1267 | * stdout stream fd. Note that this is a bit ugly here | |
1268 | * (since we rely that none of the well-known fds | |
1269 | * could be interpreted as pointer), but nonetheless | |
1270 | * safe, since the well-known fds would never get an | |
1271 | * fd > 4096, i.e. beyond the first memory page */ | |
1272 | ||
1273 | stream = ev->data.ptr; | |
1274 | ||
1275 | if (stdout_stream_process(stream) <= 0) | |
1276 | stdout_stream_free(stream); | |
1277 | ||
1278 | return 1; | |
1279 | } | |
1280 | ||
1281 | log_error("Unknown event."); | |
1282 | return 0; | |
1283 | } | |
1284 | ||
1285 | static int open_signalfd(Server *s) { | |
1286 | sigset_t mask; | |
1287 | struct epoll_event ev; | |
1288 | ||
1289 | assert(s); | |
1290 | ||
1291 | assert_se(sigemptyset(&mask) == 0); | |
1292 | sigset_add_many(&mask, SIGINT, SIGTERM, SIGUSR1, SIGUSR2, -1); | |
1293 | assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0); | |
1294 | ||
1295 | s->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK|SFD_CLOEXEC); | |
1296 | if (s->signal_fd < 0) { | |
1297 | log_error("signalfd(): %m"); | |
1298 | return -errno; | |
1299 | } | |
1300 | ||
1301 | zero(ev); | |
1302 | ev.events = EPOLLIN; | |
1303 | ev.data.fd = s->signal_fd; | |
1304 | ||
1305 | if (epoll_ctl(s->epoll_fd, EPOLL_CTL_ADD, s->signal_fd, &ev) < 0) { | |
1306 | log_error("epoll_ctl(): %m"); | |
1307 | return -errno; | |
1308 | } | |
1309 | ||
1310 | return 0; | |
1311 | } | |
1312 | ||
1313 | static int server_parse_proc_cmdline(Server *s) { | |
7fd1b19b | 1314 | _cleanup_free_ char *line = NULL; |
db91ea32 | 1315 | char *w, *state; |
d025f1e4 ZJS |
1316 | int r; |
1317 | size_t l; | |
1318 | ||
1319 | if (detect_container(NULL) > 0) | |
1320 | return 0; | |
1321 | ||
1322 | r = read_one_line_file("/proc/cmdline", &line); | |
1323 | if (r < 0) { | |
1324 | log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); | |
1325 | return 0; | |
1326 | } | |
1327 | ||
1328 | FOREACH_WORD_QUOTED(w, l, line, state) { | |
7fd1b19b | 1329 | _cleanup_free_ char *word; |
d025f1e4 ZJS |
1330 | |
1331 | word = strndup(w, l); | |
db91ea32 ZJS |
1332 | if (!word) |
1333 | return -ENOMEM; | |
d025f1e4 ZJS |
1334 | |
1335 | if (startswith(word, "systemd.journald.forward_to_syslog=")) { | |
1336 | r = parse_boolean(word + 35); | |
1337 | if (r < 0) | |
1338 | log_warning("Failed to parse forward to syslog switch %s. Ignoring.", word + 35); | |
1339 | else | |
1340 | s->forward_to_syslog = r; | |
1341 | } else if (startswith(word, "systemd.journald.forward_to_kmsg=")) { | |
1342 | r = parse_boolean(word + 33); | |
1343 | if (r < 0) | |
1344 | log_warning("Failed to parse forward to kmsg switch %s. Ignoring.", word + 33); | |
1345 | else | |
1346 | s->forward_to_kmsg = r; | |
1347 | } else if (startswith(word, "systemd.journald.forward_to_console=")) { | |
1348 | r = parse_boolean(word + 36); | |
1349 | if (r < 0) | |
1350 | log_warning("Failed to parse forward to console switch %s. Ignoring.", word + 36); | |
1351 | else | |
1352 | s->forward_to_console = r; | |
1353 | } else if (startswith(word, "systemd.journald")) | |
1354 | log_warning("Invalid systemd.journald parameter. Ignoring."); | |
d025f1e4 ZJS |
1355 | } |
1356 | ||
db91ea32 | 1357 | return 0; |
d025f1e4 ZJS |
1358 | } |
1359 | ||
1360 | static int server_parse_config_file(Server *s) { | |
db5c0122 | 1361 | static const char fn[] = "/etc/systemd/journald.conf"; |
7fd1b19b | 1362 | _cleanup_fclose_ FILE *f = NULL; |
d025f1e4 ZJS |
1363 | int r; |
1364 | ||
1365 | assert(s); | |
1366 | ||
d025f1e4 ZJS |
1367 | f = fopen(fn, "re"); |
1368 | if (!f) { | |
1369 | if (errno == ENOENT) | |
1370 | return 0; | |
1371 | ||
1372 | log_warning("Failed to open configuration file %s: %m", fn); | |
1373 | return -errno; | |
1374 | } | |
1375 | ||
e8e581bf | 1376 | r = config_parse(NULL, fn, f, "Journal\0", config_item_perf_lookup, |
db5c0122 | 1377 | (void*) journald_gperf_lookup, false, false, s); |
d025f1e4 ZJS |
1378 | if (r < 0) |
1379 | log_warning("Failed to parse configuration file: %s", strerror(-r)); | |
1380 | ||
d025f1e4 ZJS |
1381 | return r; |
1382 | } | |
1383 | ||
26687bf8 OS |
1384 | static int server_open_sync_timer(Server *s) { |
1385 | int r; | |
1386 | struct epoll_event ev; | |
1387 | ||
1388 | assert(s); | |
1389 | ||
1390 | s->sync_timer_fd = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC); | |
1391 | if (s->sync_timer_fd < 0) | |
1392 | return -errno; | |
1393 | ||
1394 | zero(ev); | |
1395 | ev.events = EPOLLIN; | |
1396 | ev.data.fd = s->sync_timer_fd; | |
1397 | ||
1398 | r = epoll_ctl(s->epoll_fd, EPOLL_CTL_ADD, s->sync_timer_fd, &ev); | |
1399 | if (r < 0) { | |
1400 | log_error("Failed to add idle timer fd to epoll object: %m"); | |
1401 | return -errno; | |
1402 | } | |
1403 | ||
1404 | return 0; | |
1405 | } | |
1406 | ||
d07f7b9e | 1407 | int server_schedule_sync(Server *s, int priority) { |
26687bf8 OS |
1408 | int r; |
1409 | ||
26687bf8 OS |
1410 | assert(s); |
1411 | ||
d07f7b9e LP |
1412 | if (priority <= LOG_CRIT) { |
1413 | /* Immediately sync to disk when this is of priority CRIT, ALERT, EMERG */ | |
1414 | server_sync(s); | |
1415 | return 0; | |
1416 | } | |
1417 | ||
26687bf8 OS |
1418 | if (s->sync_scheduled) |
1419 | return 0; | |
1420 | ||
1421 | if (s->sync_interval_usec) { | |
ca267016 MB |
1422 | struct itimerspec sync_timer_enable = {}; |
1423 | ||
1424 | timespec_store(&sync_timer_enable.it_value, s->sync_interval_usec); | |
26687bf8 OS |
1425 | |
1426 | r = timerfd_settime(s->sync_timer_fd, 0, &sync_timer_enable, NULL); | |
1427 | if (r < 0) | |
1428 | return -errno; | |
1429 | } | |
1430 | ||
1431 | s->sync_scheduled = true; | |
1432 | ||
1433 | return 0; | |
1434 | } | |
1435 | ||
d025f1e4 ZJS |
1436 | int server_init(Server *s) { |
1437 | int n, r, fd; | |
1438 | ||
1439 | assert(s); | |
1440 | ||
1441 | zero(*s); | |
26687bf8 | 1442 | s->sync_timer_fd = s->syslog_fd = s->native_fd = s->stdout_fd = |
670b110c | 1443 | s->signal_fd = s->epoll_fd = s->dev_kmsg_fd = -1; |
d025f1e4 ZJS |
1444 | s->compress = true; |
1445 | s->seal = true; | |
1446 | ||
26687bf8 OS |
1447 | s->sync_interval_usec = DEFAULT_SYNC_INTERVAL_USEC; |
1448 | s->sync_scheduled = false; | |
1449 | ||
d025f1e4 ZJS |
1450 | s->rate_limit_interval = DEFAULT_RATE_LIMIT_INTERVAL; |
1451 | s->rate_limit_burst = DEFAULT_RATE_LIMIT_BURST; | |
1452 | ||
1453 | s->forward_to_syslog = true; | |
1454 | ||
1455 | s->max_level_store = LOG_DEBUG; | |
1456 | s->max_level_syslog = LOG_DEBUG; | |
1457 | s->max_level_kmsg = LOG_NOTICE; | |
1458 | s->max_level_console = LOG_INFO; | |
1459 | ||
1460 | memset(&s->system_metrics, 0xFF, sizeof(s->system_metrics)); | |
1461 | memset(&s->runtime_metrics, 0xFF, sizeof(s->runtime_metrics)); | |
1462 | ||
1463 | server_parse_config_file(s); | |
1464 | server_parse_proc_cmdline(s); | |
d288f79f ZJS |
1465 | if (!!s->rate_limit_interval ^ !!s->rate_limit_burst) { |
1466 | log_debug("Setting both rate limit interval and burst from %llu,%u to 0,0", | |
1467 | (long long unsigned) s->rate_limit_interval, | |
1468 | s->rate_limit_burst); | |
1469 | s->rate_limit_interval = s->rate_limit_burst = 0; | |
1470 | } | |
d025f1e4 ZJS |
1471 | |
1472 | mkdir_p("/run/systemd/journal", 0755); | |
1473 | ||
1474 | s->user_journals = hashmap_new(trivial_hash_func, trivial_compare_func); | |
1475 | if (!s->user_journals) | |
1476 | return log_oom(); | |
1477 | ||
1478 | s->mmap = mmap_cache_new(); | |
1479 | if (!s->mmap) | |
1480 | return log_oom(); | |
1481 | ||
1482 | s->epoll_fd = epoll_create1(EPOLL_CLOEXEC); | |
1483 | if (s->epoll_fd < 0) { | |
1484 | log_error("Failed to create epoll object: %m"); | |
1485 | return -errno; | |
1486 | } | |
1487 | ||
1488 | n = sd_listen_fds(true); | |
1489 | if (n < 0) { | |
1490 | log_error("Failed to read listening file descriptors from environment: %s", strerror(-n)); | |
1491 | return n; | |
1492 | } | |
1493 | ||
1494 | for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) { | |
1495 | ||
1496 | if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/run/systemd/journal/socket", 0) > 0) { | |
1497 | ||
1498 | if (s->native_fd >= 0) { | |
1499 | log_error("Too many native sockets passed."); | |
1500 | return -EINVAL; | |
1501 | } | |
1502 | ||
1503 | s->native_fd = fd; | |
1504 | ||
1505 | } else if (sd_is_socket_unix(fd, SOCK_STREAM, 1, "/run/systemd/journal/stdout", 0) > 0) { | |
1506 | ||
1507 | if (s->stdout_fd >= 0) { | |
1508 | log_error("Too many stdout sockets passed."); | |
1509 | return -EINVAL; | |
1510 | } | |
1511 | ||
1512 | s->stdout_fd = fd; | |
1513 | ||
1514 | } else if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/dev/log", 0) > 0) { | |
1515 | ||
1516 | if (s->syslog_fd >= 0) { | |
1517 | log_error("Too many /dev/log sockets passed."); | |
1518 | return -EINVAL; | |
1519 | } | |
1520 | ||
1521 | s->syslog_fd = fd; | |
1522 | ||
1523 | } else { | |
1524 | log_error("Unknown socket passed."); | |
1525 | return -EINVAL; | |
1526 | } | |
1527 | } | |
1528 | ||
1529 | r = server_open_syslog_socket(s); | |
1530 | if (r < 0) | |
1531 | return r; | |
1532 | ||
1533 | r = server_open_native_socket(s); | |
1534 | if (r < 0) | |
1535 | return r; | |
1536 | ||
1537 | r = server_open_stdout_socket(s); | |
1538 | if (r < 0) | |
1539 | return r; | |
1540 | ||
1541 | r = server_open_dev_kmsg(s); | |
1542 | if (r < 0) | |
1543 | return r; | |
1544 | ||
1545 | r = server_open_kernel_seqnum(s); | |
1546 | if (r < 0) | |
1547 | return r; | |
1548 | ||
26687bf8 OS |
1549 | r = server_open_sync_timer(s); |
1550 | if (r < 0) | |
1551 | return r; | |
1552 | ||
d025f1e4 ZJS |
1553 | r = open_signalfd(s); |
1554 | if (r < 0) | |
1555 | return r; | |
1556 | ||
1557 | s->udev = udev_new(); | |
1558 | if (!s->udev) | |
1559 | return -ENOMEM; | |
1560 | ||
d288f79f ZJS |
1561 | s->rate_limit = journal_rate_limit_new(s->rate_limit_interval, |
1562 | s->rate_limit_burst); | |
d025f1e4 ZJS |
1563 | if (!s->rate_limit) |
1564 | return -ENOMEM; | |
1565 | ||
1566 | r = system_journal_open(s); | |
1567 | if (r < 0) | |
1568 | return r; | |
1569 | ||
1570 | return 0; | |
1571 | } | |
1572 | ||
1573 | void server_maybe_append_tags(Server *s) { | |
1574 | #ifdef HAVE_GCRYPT | |
1575 | JournalFile *f; | |
1576 | Iterator i; | |
1577 | usec_t n; | |
1578 | ||
1579 | n = now(CLOCK_REALTIME); | |
1580 | ||
1581 | if (s->system_journal) | |
1582 | journal_file_maybe_append_tag(s->system_journal, n); | |
1583 | ||
1584 | HASHMAP_FOREACH(f, s->user_journals, i) | |
1585 | journal_file_maybe_append_tag(f, n); | |
1586 | #endif | |
1587 | } | |
1588 | ||
1589 | void server_done(Server *s) { | |
1590 | JournalFile *f; | |
1591 | assert(s); | |
1592 | ||
1593 | while (s->stdout_streams) | |
1594 | stdout_stream_free(s->stdout_streams); | |
1595 | ||
1596 | if (s->system_journal) | |
1597 | journal_file_close(s->system_journal); | |
1598 | ||
1599 | if (s->runtime_journal) | |
1600 | journal_file_close(s->runtime_journal); | |
1601 | ||
1602 | while ((f = hashmap_steal_first(s->user_journals))) | |
1603 | journal_file_close(f); | |
1604 | ||
1605 | hashmap_free(s->user_journals); | |
1606 | ||
1607 | if (s->epoll_fd >= 0) | |
1608 | close_nointr_nofail(s->epoll_fd); | |
1609 | ||
1610 | if (s->signal_fd >= 0) | |
1611 | close_nointr_nofail(s->signal_fd); | |
1612 | ||
1613 | if (s->syslog_fd >= 0) | |
1614 | close_nointr_nofail(s->syslog_fd); | |
1615 | ||
1616 | if (s->native_fd >= 0) | |
1617 | close_nointr_nofail(s->native_fd); | |
1618 | ||
1619 | if (s->stdout_fd >= 0) | |
1620 | close_nointr_nofail(s->stdout_fd); | |
1621 | ||
1622 | if (s->dev_kmsg_fd >= 0) | |
1623 | close_nointr_nofail(s->dev_kmsg_fd); | |
1624 | ||
26687bf8 OS |
1625 | if (s->sync_timer_fd >= 0) |
1626 | close_nointr_nofail(s->sync_timer_fd); | |
1627 | ||
d025f1e4 ZJS |
1628 | if (s->rate_limit) |
1629 | journal_rate_limit_free(s->rate_limit); | |
1630 | ||
1631 | if (s->kernel_seqnum) | |
1632 | munmap(s->kernel_seqnum, sizeof(uint64_t)); | |
1633 | ||
1634 | free(s->buffer); | |
1635 | free(s->tty_path); | |
1636 | ||
1637 | if (s->mmap) | |
1638 | mmap_cache_unref(s->mmap); | |
1639 | ||
1640 | if (s->udev) | |
1641 | udev_unref(s->udev); | |
1642 | } |