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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> | |
27 | ||
24882e06 LP |
28 | #ifdef HAVE_SELINUX |
29 | #include <selinux/selinux.h> | |
30 | #endif | |
31 | ||
d025f1e4 | 32 | #include <libudev.h> |
d025f1e4 | 33 | |
74df0fca LP |
34 | #include "sd-journal.h" |
35 | #include "sd-messages.h" | |
36 | #include "sd-daemon.h" | |
d025f1e4 | 37 | #include "mkdir.h" |
c6878637 | 38 | #include "rm-rf.h" |
d025f1e4 ZJS |
39 | #include "hashmap.h" |
40 | #include "journal-file.h" | |
41 | #include "socket-util.h" | |
42 | #include "cgroup-util.h" | |
d025f1e4 ZJS |
43 | #include "missing.h" |
44 | #include "conf-parser.h" | |
74df0fca | 45 | #include "selinux-util.h" |
958b66ea LP |
46 | #include "acl-util.h" |
47 | #include "formats-util.h" | |
48 | #include "process-util.h" | |
49 | #include "hostname-util.h" | |
24882e06 | 50 | #include "signal-util.h" |
d025f1e4 ZJS |
51 | #include "journal-internal.h" |
52 | #include "journal-vacuum.h" | |
53 | #include "journal-authenticate.h" | |
d025f1e4 ZJS |
54 | #include "journald-rate-limit.h" |
55 | #include "journald-kmsg.h" | |
56 | #include "journald-syslog.h" | |
57 | #include "journald-stream.h" | |
d025f1e4 | 58 | #include "journald-native.h" |
875c2e22 | 59 | #include "journald-audit.h" |
74df0fca | 60 | #include "journald-server.h" |
d025f1e4 | 61 | |
d025f1e4 ZJS |
62 | #define USER_JOURNALS_MAX 1024 |
63 | ||
26687bf8 | 64 | #define DEFAULT_SYNC_INTERVAL_USEC (5*USEC_PER_MINUTE) |
7f1ad696 LP |
65 | #define DEFAULT_RATE_LIMIT_INTERVAL (30*USEC_PER_SEC) |
66 | #define DEFAULT_RATE_LIMIT_BURST 1000 | |
e150e820 | 67 | #define DEFAULT_MAX_FILE_USEC USEC_PER_MONTH |
d025f1e4 ZJS |
68 | |
69 | #define RECHECK_AVAILABLE_SPACE_USEC (30*USEC_PER_SEC) | |
70 | ||
2c5859af | 71 | static const char* const storage_table[_STORAGE_MAX] = { |
d025f1e4 ZJS |
72 | [STORAGE_AUTO] = "auto", |
73 | [STORAGE_VOLATILE] = "volatile", | |
74 | [STORAGE_PERSISTENT] = "persistent", | |
75 | [STORAGE_NONE] = "none" | |
76 | }; | |
77 | ||
78 | DEFINE_STRING_TABLE_LOOKUP(storage, Storage); | |
79 | DEFINE_CONFIG_PARSE_ENUM(config_parse_storage, storage, Storage, "Failed to parse storage setting"); | |
80 | ||
2c5859af DM |
81 | static const char* const split_mode_table[_SPLIT_MAX] = { |
82 | [SPLIT_LOGIN] = "login", | |
d025f1e4 | 83 | [SPLIT_UID] = "uid", |
2c5859af | 84 | [SPLIT_NONE] = "none", |
d025f1e4 ZJS |
85 | }; |
86 | ||
87 | DEFINE_STRING_TABLE_LOOKUP(split_mode, SplitMode); | |
88 | DEFINE_CONFIG_PARSE_ENUM(config_parse_split_mode, split_mode, SplitMode, "Failed to parse split mode setting"); | |
89 | ||
670b110c | 90 | static uint64_t available_space(Server *s, bool verbose) { |
db91ea32 | 91 | char ids[33]; |
7fd1b19b | 92 | _cleanup_free_ char *p = NULL; |
d025f1e4 ZJS |
93 | sd_id128_t machine; |
94 | struct statvfs ss; | |
670b110c | 95 | uint64_t sum = 0, ss_avail = 0, avail = 0; |
d025f1e4 | 96 | int r; |
7fd1b19b | 97 | _cleanup_closedir_ DIR *d = NULL; |
d025f1e4 | 98 | usec_t ts; |
670b110c | 99 | const char *f; |
d025f1e4 ZJS |
100 | JournalMetrics *m; |
101 | ||
102 | ts = now(CLOCK_MONOTONIC); | |
103 | ||
670b110c ZJS |
104 | if (s->cached_available_space_timestamp + RECHECK_AVAILABLE_SPACE_USEC > ts |
105 | && !verbose) | |
d025f1e4 ZJS |
106 | return s->cached_available_space; |
107 | ||
108 | r = sd_id128_get_machine(&machine); | |
109 | if (r < 0) | |
110 | return 0; | |
111 | ||
112 | if (s->system_journal) { | |
113 | f = "/var/log/journal/"; | |
114 | m = &s->system_metrics; | |
115 | } else { | |
116 | f = "/run/log/journal/"; | |
117 | m = &s->runtime_metrics; | |
118 | } | |
119 | ||
120 | assert(m); | |
121 | ||
122 | p = strappend(f, sd_id128_to_string(machine, ids)); | |
123 | if (!p) | |
124 | return 0; | |
125 | ||
126 | d = opendir(p); | |
d025f1e4 ZJS |
127 | if (!d) |
128 | return 0; | |
129 | ||
130 | if (fstatvfs(dirfd(d), &ss) < 0) | |
db91ea32 | 131 | return 0; |
d025f1e4 ZJS |
132 | |
133 | for (;;) { | |
134 | struct stat st; | |
135 | struct dirent *de; | |
d025f1e4 | 136 | |
0371ca0d FW |
137 | errno = 0; |
138 | de = readdir(d); | |
139 | if (!de && errno != 0) | |
140 | return 0; | |
d025f1e4 ZJS |
141 | |
142 | if (!de) | |
143 | break; | |
144 | ||
145 | if (!endswith(de->d_name, ".journal") && | |
146 | !endswith(de->d_name, ".journal~")) | |
147 | continue; | |
148 | ||
149 | if (fstatat(dirfd(d), de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) | |
150 | continue; | |
151 | ||
152 | if (!S_ISREG(st.st_mode)) | |
153 | continue; | |
154 | ||
155 | sum += (uint64_t) st.st_blocks * 512UL; | |
156 | } | |
157 | ||
d025f1e4 ZJS |
158 | ss_avail = ss.f_bsize * ss.f_bavail; |
159 | ||
348ced90 ZJS |
160 | /* If we reached a high mark, we will always allow this much |
161 | * again, unless usage goes above max_use. This watermark | |
162 | * value is cached so that we don't give up space on pressure, | |
163 | * but hover below the maximum usage. */ | |
164 | ||
165 | if (m->use < sum) | |
166 | m->use = sum; | |
167 | ||
168 | avail = LESS_BY(ss_avail, m->keep_free); | |
169 | ||
170 | s->cached_available_space = LESS_BY(MIN(m->max_use, avail), sum); | |
d025f1e4 ZJS |
171 | s->cached_available_space_timestamp = ts; |
172 | ||
670b110c ZJS |
173 | if (verbose) { |
174 | char fb1[FORMAT_BYTES_MAX], fb2[FORMAT_BYTES_MAX], fb3[FORMAT_BYTES_MAX], | |
175 | fb4[FORMAT_BYTES_MAX], fb5[FORMAT_BYTES_MAX]; | |
176 | ||
177 | server_driver_message(s, SD_MESSAGE_JOURNAL_USAGE, | |
348ced90 ZJS |
178 | "%s journal is using %s (max allowed %s, " |
179 | "trying to leave %s free of %s available → current limit %s).", | |
670b110c ZJS |
180 | s->system_journal ? "Permanent" : "Runtime", |
181 | format_bytes(fb1, sizeof(fb1), sum), | |
182 | format_bytes(fb2, sizeof(fb2), m->max_use), | |
183 | format_bytes(fb3, sizeof(fb3), m->keep_free), | |
184 | format_bytes(fb4, sizeof(fb4), ss_avail), | |
348ced90 | 185 | format_bytes(fb5, sizeof(fb5), s->cached_available_space + sum)); |
670b110c ZJS |
186 | } |
187 | ||
188 | return s->cached_available_space; | |
d025f1e4 ZJS |
189 | } |
190 | ||
d025f1e4 ZJS |
191 | void server_fix_perms(Server *s, JournalFile *f, uid_t uid) { |
192 | int r; | |
193 | #ifdef HAVE_ACL | |
194 | acl_t acl; | |
195 | acl_entry_t entry; | |
196 | acl_permset_t permset; | |
197 | #endif | |
198 | ||
199 | assert(f); | |
200 | ||
4608af43 | 201 | r = fchmod(f->fd, 0640); |
d025f1e4 | 202 | if (r < 0) |
da927ba9 | 203 | log_warning_errno(r, "Failed to fix access mode on %s, ignoring: %m", f->path); |
d025f1e4 ZJS |
204 | |
205 | #ifdef HAVE_ACL | |
34c10968 | 206 | if (uid <= SYSTEM_UID_MAX) |
d025f1e4 ZJS |
207 | return; |
208 | ||
209 | acl = acl_get_fd(f->fd); | |
210 | if (!acl) { | |
56f64d95 | 211 | log_warning_errno(errno, "Failed to read ACL on %s, ignoring: %m", f->path); |
d025f1e4 ZJS |
212 | return; |
213 | } | |
214 | ||
215 | r = acl_find_uid(acl, uid, &entry); | |
216 | if (r <= 0) { | |
217 | ||
218 | if (acl_create_entry(&acl, &entry) < 0 || | |
219 | acl_set_tag_type(entry, ACL_USER) < 0 || | |
220 | acl_set_qualifier(entry, &uid) < 0) { | |
56f64d95 | 221 | log_warning_errno(errno, "Failed to patch ACL on %s, ignoring: %m", f->path); |
d025f1e4 ZJS |
222 | goto finish; |
223 | } | |
224 | } | |
225 | ||
23ad4dd8 JAS |
226 | /* We do not recalculate the mask unconditionally here, |
227 | * so that the fchmod() mask above stays intact. */ | |
d025f1e4 | 228 | if (acl_get_permset(entry, &permset) < 0 || |
23ad4dd8 JAS |
229 | acl_add_perm(permset, ACL_READ) < 0 || |
230 | calc_acl_mask_if_needed(&acl) < 0) { | |
56f64d95 | 231 | log_warning_errno(errno, "Failed to patch ACL on %s, ignoring: %m", f->path); |
d025f1e4 ZJS |
232 | goto finish; |
233 | } | |
234 | ||
235 | if (acl_set_fd(f->fd, acl) < 0) | |
56f64d95 | 236 | log_warning_errno(errno, "Failed to set ACL on %s, ignoring: %m", f->path); |
d025f1e4 ZJS |
237 | |
238 | finish: | |
239 | acl_free(acl); | |
240 | #endif | |
241 | } | |
242 | ||
243 | static JournalFile* find_journal(Server *s, uid_t uid) { | |
ed375beb | 244 | _cleanup_free_ char *p = NULL; |
d025f1e4 ZJS |
245 | int r; |
246 | JournalFile *f; | |
247 | sd_id128_t machine; | |
248 | ||
249 | assert(s); | |
250 | ||
251 | /* We split up user logs only on /var, not on /run. If the | |
252 | * runtime file is open, we write to it exclusively, in order | |
253 | * to guarantee proper order as soon as we flush /run to | |
254 | * /var and close the runtime file. */ | |
255 | ||
256 | if (s->runtime_journal) | |
257 | return s->runtime_journal; | |
258 | ||
f7dc3ab9 | 259 | if (uid <= SYSTEM_UID_MAX) |
d025f1e4 ZJS |
260 | return s->system_journal; |
261 | ||
262 | r = sd_id128_get_machine(&machine); | |
263 | if (r < 0) | |
264 | return s->system_journal; | |
265 | ||
43cf8388 | 266 | f = ordered_hashmap_get(s->user_journals, UINT32_TO_PTR(uid)); |
d025f1e4 ZJS |
267 | if (f) |
268 | return f; | |
269 | ||
de0671ee ZJS |
270 | if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/user-"UID_FMT".journal", |
271 | SD_ID128_FORMAT_VAL(machine), uid) < 0) | |
d025f1e4 ZJS |
272 | return s->system_journal; |
273 | ||
43cf8388 | 274 | while (ordered_hashmap_size(s->user_journals) >= USER_JOURNALS_MAX) { |
d025f1e4 | 275 | /* Too many open? Then let's close one */ |
43cf8388 | 276 | f = ordered_hashmap_steal_first(s->user_journals); |
d025f1e4 ZJS |
277 | assert(f); |
278 | journal_file_close(f); | |
279 | } | |
280 | ||
cbd67177 | 281 | r = journal_file_open_reliably(p, O_RDWR|O_CREAT, 0640, s->compress, s->seal, &s->system_metrics, s->mmap, NULL, &f); |
d025f1e4 ZJS |
282 | if (r < 0) |
283 | return s->system_journal; | |
284 | ||
285 | server_fix_perms(s, f, uid); | |
286 | ||
43cf8388 | 287 | r = ordered_hashmap_put(s->user_journals, UINT32_TO_PTR(uid), f); |
d025f1e4 ZJS |
288 | if (r < 0) { |
289 | journal_file_close(f); | |
290 | return s->system_journal; | |
291 | } | |
292 | ||
293 | return f; | |
294 | } | |
295 | ||
ea69bd41 LP |
296 | static int do_rotate( |
297 | Server *s, | |
298 | JournalFile **f, | |
299 | const char* name, | |
300 | bool seal, | |
301 | uint32_t uid) { | |
302 | ||
fc55baee ZJS |
303 | int r; |
304 | assert(s); | |
305 | ||
306 | if (!*f) | |
307 | return -EINVAL; | |
308 | ||
309 | r = journal_file_rotate(f, s->compress, seal); | |
310 | if (r < 0) | |
311 | if (*f) | |
ea69bd41 | 312 | log_error_errno(r, "Failed to rotate %s: %m", (*f)->path); |
fc55baee | 313 | else |
ea69bd41 | 314 | log_error_errno(r, "Failed to create new %s journal: %m", name); |
fc55baee ZJS |
315 | else |
316 | server_fix_perms(s, *f, uid); | |
2678031a | 317 | |
fc55baee ZJS |
318 | return r; |
319 | } | |
320 | ||
d025f1e4 ZJS |
321 | void server_rotate(Server *s) { |
322 | JournalFile *f; | |
323 | void *k; | |
324 | Iterator i; | |
325 | int r; | |
326 | ||
327 | log_debug("Rotating..."); | |
328 | ||
fc55baee ZJS |
329 | do_rotate(s, &s->runtime_journal, "runtime", false, 0); |
330 | do_rotate(s, &s->system_journal, "system", s->seal, 0); | |
d025f1e4 | 331 | |
43cf8388 | 332 | ORDERED_HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) { |
fc55baee ZJS |
333 | r = do_rotate(s, &f, "user", s->seal, PTR_TO_UINT32(k)); |
334 | if (r >= 0) | |
43cf8388 | 335 | ordered_hashmap_replace(s->user_journals, k, f); |
fc55baee ZJS |
336 | else if (!f) |
337 | /* Old file has been closed and deallocated */ | |
43cf8388 | 338 | ordered_hashmap_remove(s->user_journals, k); |
d025f1e4 ZJS |
339 | } |
340 | } | |
341 | ||
26687bf8 OS |
342 | void server_sync(Server *s) { |
343 | JournalFile *f; | |
344 | void *k; | |
345 | Iterator i; | |
346 | int r; | |
347 | ||
26687bf8 OS |
348 | if (s->system_journal) { |
349 | r = journal_file_set_offline(s->system_journal); | |
350 | if (r < 0) | |
da927ba9 | 351 | log_error_errno(r, "Failed to sync system journal: %m"); |
26687bf8 OS |
352 | } |
353 | ||
43cf8388 | 354 | ORDERED_HASHMAP_FOREACH_KEY(f, k, s->user_journals, i) { |
26687bf8 OS |
355 | r = journal_file_set_offline(f); |
356 | if (r < 0) | |
da927ba9 | 357 | log_error_errno(r, "Failed to sync user journal: %m"); |
26687bf8 OS |
358 | } |
359 | ||
f9a810be LP |
360 | if (s->sync_event_source) { |
361 | r = sd_event_source_set_enabled(s->sync_event_source, SD_EVENT_OFF); | |
362 | if (r < 0) | |
da927ba9 | 363 | log_error_errno(r, "Failed to disable sync timer source: %m"); |
f9a810be | 364 | } |
26687bf8 OS |
365 | |
366 | s->sync_scheduled = false; | |
367 | } | |
368 | ||
ea69bd41 LP |
369 | static void do_vacuum( |
370 | Server *s, | |
371 | const char *id, | |
372 | JournalFile *f, | |
373 | const char* path, | |
374 | JournalMetrics *metrics) { | |
375 | ||
376 | const char *p; | |
63c8666b ZJS |
377 | int r; |
378 | ||
379 | if (!f) | |
380 | return; | |
381 | ||
63c372cb | 382 | p = strjoina(path, id); |
dbd2a83f | 383 | r = journal_directory_vacuum(p, metrics->max_use, s->max_retention_usec, &s->oldest_file_usec, false); |
63c8666b | 384 | if (r < 0 && r != -ENOENT) |
da927ba9 | 385 | log_error_errno(r, "Failed to vacuum %s: %m", p); |
63c8666b ZJS |
386 | } |
387 | ||
d025f1e4 | 388 | void server_vacuum(Server *s) { |
d025f1e4 ZJS |
389 | char ids[33]; |
390 | sd_id128_t machine; | |
391 | int r; | |
392 | ||
393 | log_debug("Vacuuming..."); | |
394 | ||
395 | s->oldest_file_usec = 0; | |
396 | ||
397 | r = sd_id128_get_machine(&machine); | |
398 | if (r < 0) { | |
da927ba9 | 399 | log_error_errno(r, "Failed to get machine ID: %m"); |
d025f1e4 ZJS |
400 | return; |
401 | } | |
d025f1e4 ZJS |
402 | sd_id128_to_string(machine, ids); |
403 | ||
63c8666b ZJS |
404 | do_vacuum(s, ids, s->system_journal, "/var/log/journal/", &s->system_metrics); |
405 | do_vacuum(s, ids, s->runtime_journal, "/run/log/journal/", &s->runtime_metrics); | |
d025f1e4 ZJS |
406 | |
407 | s->cached_available_space_timestamp = 0; | |
408 | } | |
409 | ||
0c24bb23 LP |
410 | static void server_cache_machine_id(Server *s) { |
411 | sd_id128_t id; | |
412 | int r; | |
413 | ||
414 | assert(s); | |
415 | ||
416 | r = sd_id128_get_machine(&id); | |
417 | if (r < 0) | |
418 | return; | |
419 | ||
420 | sd_id128_to_string(id, stpcpy(s->machine_id_field, "_MACHINE_ID=")); | |
421 | } | |
422 | ||
423 | static void server_cache_boot_id(Server *s) { | |
424 | sd_id128_t id; | |
425 | int r; | |
426 | ||
427 | assert(s); | |
428 | ||
429 | r = sd_id128_get_boot(&id); | |
430 | if (r < 0) | |
431 | return; | |
432 | ||
433 | sd_id128_to_string(id, stpcpy(s->boot_id_field, "_BOOT_ID=")); | |
434 | } | |
435 | ||
436 | static void server_cache_hostname(Server *s) { | |
437 | _cleanup_free_ char *t = NULL; | |
438 | char *x; | |
439 | ||
440 | assert(s); | |
441 | ||
442 | t = gethostname_malloc(); | |
443 | if (!t) | |
444 | return; | |
445 | ||
446 | x = strappend("_HOSTNAME=", t); | |
447 | if (!x) | |
448 | return; | |
449 | ||
450 | free(s->hostname_field); | |
451 | s->hostname_field = x; | |
452 | } | |
453 | ||
8531ae70 | 454 | static bool shall_try_append_again(JournalFile *f, int r) { |
d025f1e4 ZJS |
455 | |
456 | /* -E2BIG Hit configured limit | |
457 | -EFBIG Hit fs limit | |
458 | -EDQUOT Quota limit hit | |
459 | -ENOSPC Disk full | |
fa6ac760 | 460 | -EIO I/O error of some kind (mmap) |
d025f1e4 ZJS |
461 | -EHOSTDOWN Other machine |
462 | -EBUSY Unclean shutdown | |
463 | -EPROTONOSUPPORT Unsupported feature | |
464 | -EBADMSG Corrupted | |
465 | -ENODATA Truncated | |
2678031a LP |
466 | -ESHUTDOWN Already archived |
467 | -EIDRM Journal file has been deleted */ | |
d025f1e4 ZJS |
468 | |
469 | if (r == -E2BIG || r == -EFBIG || r == -EDQUOT || r == -ENOSPC) | |
470 | log_debug("%s: Allocation limit reached, rotating.", f->path); | |
471 | else if (r == -EHOSTDOWN) | |
472 | log_info("%s: Journal file from other machine, rotating.", f->path); | |
473 | else if (r == -EBUSY) | |
474 | log_info("%s: Unclean shutdown, rotating.", f->path); | |
475 | else if (r == -EPROTONOSUPPORT) | |
476 | log_info("%s: Unsupported feature, rotating.", f->path); | |
477 | else if (r == -EBADMSG || r == -ENODATA || r == ESHUTDOWN) | |
478 | log_warning("%s: Journal file corrupted, rotating.", f->path); | |
fa6ac760 LP |
479 | else if (r == -EIO) |
480 | log_warning("%s: IO error, rotating.", f->path); | |
2678031a LP |
481 | else if (r == -EIDRM) |
482 | log_warning("%s: Journal file has been deleted, rotating.", f->path); | |
d025f1e4 ZJS |
483 | else |
484 | return false; | |
485 | ||
486 | return true; | |
487 | } | |
488 | ||
d07f7b9e | 489 | static void write_to_journal(Server *s, uid_t uid, struct iovec *iovec, unsigned n, int priority) { |
d025f1e4 ZJS |
490 | JournalFile *f; |
491 | bool vacuumed = false; | |
492 | int r; | |
493 | ||
494 | assert(s); | |
495 | assert(iovec); | |
496 | assert(n > 0); | |
497 | ||
498 | f = find_journal(s, uid); | |
499 | if (!f) | |
500 | return; | |
501 | ||
502 | if (journal_file_rotate_suggested(f, s->max_file_usec)) { | |
503 | log_debug("%s: Journal header limits reached or header out-of-date, rotating.", f->path); | |
504 | server_rotate(s); | |
505 | server_vacuum(s); | |
506 | vacuumed = true; | |
507 | ||
508 | f = find_journal(s, uid); | |
509 | if (!f) | |
510 | return; | |
511 | } | |
512 | ||
513 | r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL); | |
26687bf8 | 514 | if (r >= 0) { |
d07f7b9e | 515 | server_schedule_sync(s, priority); |
d025f1e4 | 516 | return; |
26687bf8 | 517 | } |
d025f1e4 ZJS |
518 | |
519 | if (vacuumed || !shall_try_append_again(f, r)) { | |
8266e1c0 | 520 | log_error_errno(r, "Failed to write entry (%d items, %zu bytes), ignoring: %m", n, IOVEC_TOTAL_SIZE(iovec, n)); |
d025f1e4 ZJS |
521 | return; |
522 | } | |
523 | ||
524 | server_rotate(s); | |
525 | server_vacuum(s); | |
526 | ||
527 | f = find_journal(s, uid); | |
528 | if (!f) | |
529 | return; | |
530 | ||
531 | log_debug("Retrying write."); | |
532 | r = journal_file_append_entry(f, NULL, iovec, n, &s->seqnum, NULL, NULL); | |
8266e1c0 LP |
533 | if (r < 0) |
534 | log_error_errno(r, "Failed to write entry (%d items, %zu bytes) despite vacuuming, ignoring: %m", n, IOVEC_TOTAL_SIZE(iovec, n)); | |
535 | else | |
d07f7b9e | 536 | server_schedule_sync(s, priority); |
d025f1e4 ZJS |
537 | } |
538 | ||
539 | static void dispatch_message_real( | |
540 | Server *s, | |
541 | struct iovec *iovec, unsigned n, unsigned m, | |
3b3154df LP |
542 | const struct ucred *ucred, |
543 | const struct timeval *tv, | |
d025f1e4 | 544 | const char *label, size_t label_len, |
968f3196 | 545 | const char *unit_id, |
d07f7b9e | 546 | int priority, |
968f3196 | 547 | pid_t object_pid) { |
d025f1e4 | 548 | |
968f3196 | 549 | char pid[sizeof("_PID=") + DECIMAL_STR_MAX(pid_t)], |
ae018d9b LP |
550 | uid[sizeof("_UID=") + DECIMAL_STR_MAX(uid_t)], |
551 | gid[sizeof("_GID=") + DECIMAL_STR_MAX(gid_t)], | |
552 | owner_uid[sizeof("_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)], | |
d3789917 | 553 | source_time[sizeof("_SOURCE_REALTIME_TIMESTAMP=") + DECIMAL_STR_MAX(usec_t)], |
968f3196 ZJS |
554 | o_uid[sizeof("OBJECT_UID=") + DECIMAL_STR_MAX(uid_t)], |
555 | o_gid[sizeof("OBJECT_GID=") + DECIMAL_STR_MAX(gid_t)], | |
556 | o_owner_uid[sizeof("OBJECT_SYSTEMD_OWNER_UID=") + DECIMAL_STR_MAX(uid_t)]; | |
557 | uid_t object_uid; | |
558 | gid_t object_gid; | |
968f3196 | 559 | char *x; |
d025f1e4 | 560 | int r; |
ae018d9b | 561 | char *t, *c; |
82499507 LP |
562 | uid_t realuid = 0, owner = 0, journal_uid; |
563 | bool owner_valid = false; | |
ae018d9b | 564 | #ifdef HAVE_AUDIT |
968f3196 ZJS |
565 | char audit_session[sizeof("_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)], |
566 | audit_loginuid[sizeof("_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)], | |
567 | o_audit_session[sizeof("OBJECT_AUDIT_SESSION=") + DECIMAL_STR_MAX(uint32_t)], | |
568 | o_audit_loginuid[sizeof("OBJECT_AUDIT_LOGINUID=") + DECIMAL_STR_MAX(uid_t)]; | |
ae018d9b LP |
569 | |
570 | uint32_t audit; | |
571 | uid_t loginuid; | |
572 | #endif | |
d025f1e4 ZJS |
573 | |
574 | assert(s); | |
575 | assert(iovec); | |
576 | assert(n > 0); | |
968f3196 | 577 | assert(n + N_IOVEC_META_FIELDS + (object_pid ? N_IOVEC_OBJECT_FIELDS : 0) <= m); |
d025f1e4 ZJS |
578 | |
579 | if (ucred) { | |
d025f1e4 ZJS |
580 | realuid = ucred->uid; |
581 | ||
de0671ee | 582 | sprintf(pid, "_PID="PID_FMT, ucred->pid); |
c2457105 | 583 | IOVEC_SET_STRING(iovec[n++], pid); |
d025f1e4 | 584 | |
de0671ee | 585 | sprintf(uid, "_UID="UID_FMT, ucred->uid); |
c2457105 | 586 | IOVEC_SET_STRING(iovec[n++], uid); |
d025f1e4 | 587 | |
de0671ee | 588 | sprintf(gid, "_GID="GID_FMT, ucred->gid); |
c2457105 | 589 | IOVEC_SET_STRING(iovec[n++], gid); |
d025f1e4 ZJS |
590 | |
591 | r = get_process_comm(ucred->pid, &t); | |
592 | if (r >= 0) { | |
63c372cb | 593 | x = strjoina("_COMM=", t); |
d025f1e4 | 594 | free(t); |
968f3196 | 595 | IOVEC_SET_STRING(iovec[n++], x); |
d025f1e4 ZJS |
596 | } |
597 | ||
598 | r = get_process_exe(ucred->pid, &t); | |
599 | if (r >= 0) { | |
63c372cb | 600 | x = strjoina("_EXE=", t); |
d025f1e4 | 601 | free(t); |
968f3196 | 602 | IOVEC_SET_STRING(iovec[n++], x); |
d025f1e4 ZJS |
603 | } |
604 | ||
9bdbc2e2 | 605 | r = get_process_cmdline(ucred->pid, 0, false, &t); |
d025f1e4 | 606 | if (r >= 0) { |
63c372cb | 607 | x = strjoina("_CMDLINE=", t); |
d025f1e4 | 608 | free(t); |
3a832116 SL |
609 | IOVEC_SET_STRING(iovec[n++], x); |
610 | } | |
611 | ||
612 | r = get_process_capeff(ucred->pid, &t); | |
613 | if (r >= 0) { | |
63c372cb | 614 | x = strjoina("_CAP_EFFECTIVE=", t); |
3a832116 | 615 | free(t); |
968f3196 | 616 | IOVEC_SET_STRING(iovec[n++], x); |
d025f1e4 ZJS |
617 | } |
618 | ||
0a20e3c1 | 619 | #ifdef HAVE_AUDIT |
d025f1e4 | 620 | r = audit_session_from_pid(ucred->pid, &audit); |
ae018d9b | 621 | if (r >= 0) { |
de0671ee | 622 | sprintf(audit_session, "_AUDIT_SESSION=%"PRIu32, audit); |
ae018d9b LP |
623 | IOVEC_SET_STRING(iovec[n++], audit_session); |
624 | } | |
d025f1e4 ZJS |
625 | |
626 | r = audit_loginuid_from_pid(ucred->pid, &loginuid); | |
7027ff61 | 627 | if (r >= 0) { |
de0671ee | 628 | sprintf(audit_loginuid, "_AUDIT_LOGINUID="UID_FMT, loginuid); |
ae018d9b | 629 | IOVEC_SET_STRING(iovec[n++], audit_loginuid); |
d025f1e4 | 630 | } |
ae018d9b | 631 | #endif |
d025f1e4 | 632 | |
e9174f29 | 633 | r = cg_pid_get_path_shifted(ucred->pid, s->cgroup_root, &c); |
7027ff61 | 634 | if (r >= 0) { |
968f3196 ZJS |
635 | char *session = NULL; |
636 | ||
63c372cb | 637 | x = strjoina("_SYSTEMD_CGROUP=", c); |
968f3196 | 638 | IOVEC_SET_STRING(iovec[n++], x); |
d025f1e4 | 639 | |
ae018d9b LP |
640 | r = cg_path_get_session(c, &t); |
641 | if (r >= 0) { | |
63c372cb | 642 | session = strjoina("_SYSTEMD_SESSION=", t); |
ae018d9b | 643 | free(t); |
d025f1e4 | 644 | IOVEC_SET_STRING(iovec[n++], session); |
ae018d9b LP |
645 | } |
646 | ||
647 | if (cg_path_get_owner_uid(c, &owner) >= 0) { | |
648 | owner_valid = true; | |
d025f1e4 | 649 | |
de0671ee | 650 | sprintf(owner_uid, "_SYSTEMD_OWNER_UID="UID_FMT, owner); |
d025f1e4 | 651 | IOVEC_SET_STRING(iovec[n++], owner_uid); |
ae018d9b | 652 | } |
d025f1e4 | 653 | |
ae018d9b | 654 | if (cg_path_get_unit(c, &t) >= 0) { |
63c372cb | 655 | x = strjoina("_SYSTEMD_UNIT=", t); |
ae018d9b | 656 | free(t); |
19cace37 LP |
657 | IOVEC_SET_STRING(iovec[n++], x); |
658 | } else if (unit_id && !session) { | |
63c372cb | 659 | x = strjoina("_SYSTEMD_UNIT=", unit_id); |
19cace37 LP |
660 | IOVEC_SET_STRING(iovec[n++], x); |
661 | } | |
662 | ||
663 | if (cg_path_get_user_unit(c, &t) >= 0) { | |
63c372cb | 664 | x = strjoina("_SYSTEMD_USER_UNIT=", t); |
ae018d9b | 665 | free(t); |
968f3196 | 666 | IOVEC_SET_STRING(iovec[n++], x); |
19cace37 | 667 | } else if (unit_id && session) { |
63c372cb | 668 | x = strjoina("_SYSTEMD_USER_UNIT=", unit_id); |
19cace37 LP |
669 | IOVEC_SET_STRING(iovec[n++], x); |
670 | } | |
ae018d9b | 671 | |
0a244b8e | 672 | if (cg_path_get_slice(c, &t) >= 0) { |
63c372cb | 673 | x = strjoina("_SYSTEMD_SLICE=", t); |
0a244b8e LP |
674 | free(t); |
675 | IOVEC_SET_STRING(iovec[n++], x); | |
676 | } | |
677 | ||
ae018d9b | 678 | free(c); |
2d43b190 | 679 | } else if (unit_id) { |
63c372cb | 680 | x = strjoina("_SYSTEMD_UNIT=", unit_id); |
2d43b190 | 681 | IOVEC_SET_STRING(iovec[n++], x); |
ef1673d1 | 682 | } |
d025f1e4 | 683 | |
d025f1e4 | 684 | #ifdef HAVE_SELINUX |
6baa7db0 | 685 | if (mac_selinux_use()) { |
d682b3a7 | 686 | if (label) { |
f8294e41 | 687 | x = alloca(strlen("_SELINUX_CONTEXT=") + label_len + 1); |
ae018d9b | 688 | |
d682b3a7 LP |
689 | *((char*) mempcpy(stpcpy(x, "_SELINUX_CONTEXT="), label, label_len)) = 0; |
690 | IOVEC_SET_STRING(iovec[n++], x); | |
691 | } else { | |
692 | security_context_t con; | |
d025f1e4 | 693 | |
d682b3a7 | 694 | if (getpidcon(ucred->pid, &con) >= 0) { |
63c372cb | 695 | x = strjoina("_SELINUX_CONTEXT=", con); |
e7ff4e7f | 696 | |
d682b3a7 LP |
697 | freecon(con); |
698 | IOVEC_SET_STRING(iovec[n++], x); | |
699 | } | |
d025f1e4 ZJS |
700 | } |
701 | } | |
702 | #endif | |
703 | } | |
968f3196 ZJS |
704 | assert(n <= m); |
705 | ||
706 | if (object_pid) { | |
707 | r = get_process_uid(object_pid, &object_uid); | |
708 | if (r >= 0) { | |
de0671ee | 709 | sprintf(o_uid, "OBJECT_UID="UID_FMT, object_uid); |
968f3196 ZJS |
710 | IOVEC_SET_STRING(iovec[n++], o_uid); |
711 | } | |
712 | ||
713 | r = get_process_gid(object_pid, &object_gid); | |
714 | if (r >= 0) { | |
de0671ee | 715 | sprintf(o_gid, "OBJECT_GID="GID_FMT, object_gid); |
968f3196 ZJS |
716 | IOVEC_SET_STRING(iovec[n++], o_gid); |
717 | } | |
718 | ||
719 | r = get_process_comm(object_pid, &t); | |
720 | if (r >= 0) { | |
63c372cb | 721 | x = strjoina("OBJECT_COMM=", t); |
968f3196 ZJS |
722 | free(t); |
723 | IOVEC_SET_STRING(iovec[n++], x); | |
724 | } | |
725 | ||
726 | r = get_process_exe(object_pid, &t); | |
727 | if (r >= 0) { | |
63c372cb | 728 | x = strjoina("OBJECT_EXE=", t); |
968f3196 ZJS |
729 | free(t); |
730 | IOVEC_SET_STRING(iovec[n++], x); | |
731 | } | |
732 | ||
733 | r = get_process_cmdline(object_pid, 0, false, &t); | |
734 | if (r >= 0) { | |
63c372cb | 735 | x = strjoina("OBJECT_CMDLINE=", t); |
968f3196 ZJS |
736 | free(t); |
737 | IOVEC_SET_STRING(iovec[n++], x); | |
738 | } | |
739 | ||
740 | #ifdef HAVE_AUDIT | |
741 | r = audit_session_from_pid(object_pid, &audit); | |
742 | if (r >= 0) { | |
de0671ee | 743 | sprintf(o_audit_session, "OBJECT_AUDIT_SESSION=%"PRIu32, audit); |
968f3196 ZJS |
744 | IOVEC_SET_STRING(iovec[n++], o_audit_session); |
745 | } | |
746 | ||
747 | r = audit_loginuid_from_pid(object_pid, &loginuid); | |
748 | if (r >= 0) { | |
de0671ee | 749 | sprintf(o_audit_loginuid, "OBJECT_AUDIT_LOGINUID="UID_FMT, loginuid); |
968f3196 ZJS |
750 | IOVEC_SET_STRING(iovec[n++], o_audit_loginuid); |
751 | } | |
752 | #endif | |
753 | ||
e9174f29 | 754 | r = cg_pid_get_path_shifted(object_pid, s->cgroup_root, &c); |
968f3196 | 755 | if (r >= 0) { |
63c372cb | 756 | x = strjoina("OBJECT_SYSTEMD_CGROUP=", c); |
968f3196 ZJS |
757 | IOVEC_SET_STRING(iovec[n++], x); |
758 | ||
759 | r = cg_path_get_session(c, &t); | |
760 | if (r >= 0) { | |
63c372cb | 761 | x = strjoina("OBJECT_SYSTEMD_SESSION=", t); |
968f3196 ZJS |
762 | free(t); |
763 | IOVEC_SET_STRING(iovec[n++], x); | |
764 | } | |
765 | ||
766 | if (cg_path_get_owner_uid(c, &owner) >= 0) { | |
de0671ee | 767 | sprintf(o_owner_uid, "OBJECT_SYSTEMD_OWNER_UID="UID_FMT, owner); |
968f3196 ZJS |
768 | IOVEC_SET_STRING(iovec[n++], o_owner_uid); |
769 | } | |
770 | ||
771 | if (cg_path_get_unit(c, &t) >= 0) { | |
63c372cb | 772 | x = strjoina("OBJECT_SYSTEMD_UNIT=", t); |
968f3196 | 773 | free(t); |
19cace37 LP |
774 | IOVEC_SET_STRING(iovec[n++], x); |
775 | } | |
776 | ||
777 | if (cg_path_get_user_unit(c, &t) >= 0) { | |
63c372cb | 778 | x = strjoina("OBJECT_SYSTEMD_USER_UNIT=", t); |
968f3196 | 779 | free(t); |
968f3196 | 780 | IOVEC_SET_STRING(iovec[n++], x); |
19cace37 | 781 | } |
968f3196 ZJS |
782 | |
783 | free(c); | |
784 | } | |
785 | } | |
786 | assert(n <= m); | |
d025f1e4 ZJS |
787 | |
788 | if (tv) { | |
ae018d9b | 789 | sprintf(source_time, "_SOURCE_REALTIME_TIMESTAMP=%llu", (unsigned long long) timeval_load(tv)); |
a5693989 | 790 | IOVEC_SET_STRING(iovec[n++], source_time); |
d025f1e4 ZJS |
791 | } |
792 | ||
793 | /* Note that strictly speaking storing the boot id here is | |
794 | * redundant since the entry includes this in-line | |
795 | * anyway. However, we need this indexed, too. */ | |
0c24bb23 LP |
796 | if (!isempty(s->boot_id_field)) |
797 | IOVEC_SET_STRING(iovec[n++], s->boot_id_field); | |
d025f1e4 | 798 | |
0c24bb23 LP |
799 | if (!isempty(s->machine_id_field)) |
800 | IOVEC_SET_STRING(iovec[n++], s->machine_id_field); | |
d025f1e4 | 801 | |
0c24bb23 LP |
802 | if (!isempty(s->hostname_field)) |
803 | IOVEC_SET_STRING(iovec[n++], s->hostname_field); | |
d025f1e4 ZJS |
804 | |
805 | assert(n <= m); | |
806 | ||
da499392 | 807 | if (s->split_mode == SPLIT_UID && realuid > 0) |
40adcda8 | 808 | /* Split up strictly by any UID */ |
759c945a | 809 | journal_uid = realuid; |
82499507 | 810 | else if (s->split_mode == SPLIT_LOGIN && realuid > 0 && owner_valid && owner > 0) |
edc3797f LP |
811 | /* Split up by login UIDs. We do this only if the |
812 | * realuid is not root, in order not to accidentally | |
813 | * leak privileged information to the user that is | |
814 | * logged by a privileged process that is part of an | |
7517e174 | 815 | * unprivileged session. */ |
8a0889df | 816 | journal_uid = owner; |
da499392 KS |
817 | else |
818 | journal_uid = 0; | |
759c945a | 819 | |
d07f7b9e | 820 | write_to_journal(s, journal_uid, iovec, n, priority); |
d025f1e4 ZJS |
821 | } |
822 | ||
823 | void server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...) { | |
824 | char mid[11 + 32 + 1]; | |
825 | char buffer[16 + LINE_MAX + 1]; | |
826 | struct iovec iovec[N_IOVEC_META_FIELDS + 4]; | |
827 | int n = 0; | |
828 | va_list ap; | |
b92bea5d | 829 | struct ucred ucred = {}; |
d025f1e4 ZJS |
830 | |
831 | assert(s); | |
832 | assert(format); | |
833 | ||
834 | IOVEC_SET_STRING(iovec[n++], "PRIORITY=6"); | |
835 | IOVEC_SET_STRING(iovec[n++], "_TRANSPORT=driver"); | |
836 | ||
837 | memcpy(buffer, "MESSAGE=", 8); | |
838 | va_start(ap, format); | |
839 | vsnprintf(buffer + 8, sizeof(buffer) - 8, format, ap); | |
840 | va_end(ap); | |
d025f1e4 ZJS |
841 | IOVEC_SET_STRING(iovec[n++], buffer); |
842 | ||
843 | if (!sd_id128_equal(message_id, SD_ID128_NULL)) { | |
e2cc6eca | 844 | snprintf(mid, sizeof(mid), LOG_MESSAGE_ID(message_id)); |
d025f1e4 ZJS |
845 | IOVEC_SET_STRING(iovec[n++], mid); |
846 | } | |
847 | ||
d025f1e4 ZJS |
848 | ucred.pid = getpid(); |
849 | ucred.uid = getuid(); | |
850 | ucred.gid = getgid(); | |
851 | ||
d07f7b9e | 852 | dispatch_message_real(s, iovec, n, ELEMENTSOF(iovec), &ucred, NULL, NULL, 0, NULL, LOG_INFO, 0); |
d025f1e4 ZJS |
853 | } |
854 | ||
855 | void server_dispatch_message( | |
856 | Server *s, | |
857 | struct iovec *iovec, unsigned n, unsigned m, | |
3b3154df LP |
858 | const struct ucred *ucred, |
859 | const struct timeval *tv, | |
d025f1e4 ZJS |
860 | const char *label, size_t label_len, |
861 | const char *unit_id, | |
968f3196 ZJS |
862 | int priority, |
863 | pid_t object_pid) { | |
d025f1e4 | 864 | |
7027ff61 | 865 | int rl, r; |
7fd1b19b | 866 | _cleanup_free_ char *path = NULL; |
db91ea32 | 867 | char *c; |
d025f1e4 ZJS |
868 | |
869 | assert(s); | |
870 | assert(iovec || n == 0); | |
871 | ||
872 | if (n == 0) | |
873 | return; | |
874 | ||
875 | if (LOG_PRI(priority) > s->max_level_store) | |
876 | return; | |
877 | ||
2f5df74a HHPF |
878 | /* Stop early in case the information will not be stored |
879 | * in a journal. */ | |
880 | if (s->storage == STORAGE_NONE) | |
881 | return; | |
882 | ||
d025f1e4 ZJS |
883 | if (!ucred) |
884 | goto finish; | |
885 | ||
e9174f29 | 886 | r = cg_pid_get_path_shifted(ucred->pid, s->cgroup_root, &path); |
7027ff61 | 887 | if (r < 0) |
d025f1e4 ZJS |
888 | goto finish; |
889 | ||
890 | /* example: /user/lennart/3/foobar | |
891 | * /system/dbus.service/foobar | |
892 | * | |
893 | * So let's cut of everything past the third /, since that is | |
894 | * where user directories start */ | |
895 | ||
896 | c = strchr(path, '/'); | |
897 | if (c) { | |
898 | c = strchr(c+1, '/'); | |
899 | if (c) { | |
900 | c = strchr(c+1, '/'); | |
901 | if (c) | |
902 | *c = 0; | |
903 | } | |
904 | } | |
905 | ||
db91ea32 | 906 | rl = journal_rate_limit_test(s->rate_limit, path, |
670b110c | 907 | priority & LOG_PRIMASK, available_space(s, false)); |
d025f1e4 | 908 | |
db91ea32 | 909 | if (rl == 0) |
d025f1e4 | 910 | return; |
d025f1e4 ZJS |
911 | |
912 | /* Write a suppression message if we suppressed something */ | |
913 | if (rl > 1) | |
db91ea32 ZJS |
914 | server_driver_message(s, SD_MESSAGE_JOURNAL_DROPPED, |
915 | "Suppressed %u messages from %s", rl - 1, path); | |
d025f1e4 ZJS |
916 | |
917 | finish: | |
d07f7b9e | 918 | dispatch_message_real(s, iovec, n, m, ucred, tv, label, label_len, unit_id, priority, object_pid); |
d025f1e4 ZJS |
919 | } |
920 | ||
921 | ||
caa2f4c0 | 922 | static int system_journal_open(Server *s, bool flush_requested) { |
d025f1e4 ZJS |
923 | int r; |
924 | char *fn; | |
925 | sd_id128_t machine; | |
926 | char ids[33]; | |
927 | ||
928 | r = sd_id128_get_machine(&machine); | |
23bbb0de MS |
929 | if (r < 0) |
930 | return log_error_errno(r, "Failed to get machine id: %m"); | |
d025f1e4 ZJS |
931 | |
932 | sd_id128_to_string(machine, ids); | |
933 | ||
934 | if (!s->system_journal && | |
935 | (s->storage == STORAGE_PERSISTENT || s->storage == STORAGE_AUTO) && | |
caa2f4c0 ZJS |
936 | (flush_requested |
937 | || access("/run/systemd/journal/flushed", F_OK) >= 0)) { | |
d025f1e4 ZJS |
938 | |
939 | /* If in auto mode: first try to create the machine | |
940 | * path, but not the prefix. | |
941 | * | |
942 | * If in persistent mode: create /var/log/journal and | |
943 | * the machine path */ | |
944 | ||
945 | if (s->storage == STORAGE_PERSISTENT) | |
946 | (void) mkdir("/var/log/journal/", 0755); | |
947 | ||
63c372cb | 948 | fn = strjoina("/var/log/journal/", ids); |
d025f1e4 | 949 | (void) mkdir(fn, 0755); |
d025f1e4 | 950 | |
63c372cb | 951 | fn = strjoina(fn, "/system.journal"); |
d025f1e4 | 952 | 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 | 953 | |
670b110c | 954 | if (r >= 0) |
d025f1e4 | 955 | server_fix_perms(s, s->system_journal, 0); |
433dd100 LN |
956 | else if (r < 0) { |
957 | if (r != -ENOENT && r != -EROFS) | |
da927ba9 | 958 | log_warning_errno(r, "Failed to open system journal: %m"); |
e40ec7ae | 959 | |
433dd100 LN |
960 | r = 0; |
961 | } | |
d025f1e4 ZJS |
962 | } |
963 | ||
964 | if (!s->runtime_journal && | |
965 | (s->storage != STORAGE_NONE)) { | |
966 | ||
967 | fn = strjoin("/run/log/journal/", ids, "/system.journal", NULL); | |
968 | if (!fn) | |
969 | return -ENOMEM; | |
970 | ||
971 | if (s->system_journal) { | |
972 | ||
973 | /* Try to open the runtime journal, but only | |
974 | * if it already exists, so that we can flush | |
975 | * it into the system journal */ | |
976 | ||
977 | r = journal_file_open(fn, O_RDWR, 0640, s->compress, false, &s->runtime_metrics, s->mmap, NULL, &s->runtime_journal); | |
978 | free(fn); | |
979 | ||
980 | if (r < 0) { | |
981 | if (r != -ENOENT) | |
da927ba9 | 982 | log_warning_errno(r, "Failed to open runtime journal: %m"); |
d025f1e4 ZJS |
983 | |
984 | r = 0; | |
985 | } | |
986 | ||
987 | } else { | |
988 | ||
989 | /* OK, we really need the runtime journal, so create | |
990 | * it if necessary. */ | |
991 | ||
fc1d70af LP |
992 | (void) mkdir("/run/log", 0755); |
993 | (void) mkdir("/run/log/journal", 0755); | |
994 | (void) mkdir_parents(fn, 0750); | |
995 | ||
d025f1e4 ZJS |
996 | r = journal_file_open_reliably(fn, O_RDWR|O_CREAT, 0640, s->compress, false, &s->runtime_metrics, s->mmap, NULL, &s->runtime_journal); |
997 | free(fn); | |
998 | ||
23bbb0de MS |
999 | if (r < 0) |
1000 | return log_error_errno(r, "Failed to open runtime journal: %m"); | |
d025f1e4 ZJS |
1001 | } |
1002 | ||
670b110c | 1003 | if (s->runtime_journal) |
d025f1e4 | 1004 | server_fix_perms(s, s->runtime_journal, 0); |
d025f1e4 ZJS |
1005 | } |
1006 | ||
670b110c ZJS |
1007 | available_space(s, true); |
1008 | ||
d025f1e4 ZJS |
1009 | return r; |
1010 | } | |
1011 | ||
1012 | int server_flush_to_var(Server *s) { | |
d025f1e4 ZJS |
1013 | sd_id128_t machine; |
1014 | sd_journal *j = NULL; | |
fbb63411 LP |
1015 | char ts[FORMAT_TIMESPAN_MAX]; |
1016 | usec_t start; | |
1017 | unsigned n = 0; | |
1018 | int r; | |
d025f1e4 ZJS |
1019 | |
1020 | assert(s); | |
1021 | ||
1022 | if (s->storage != STORAGE_AUTO && | |
1023 | s->storage != STORAGE_PERSISTENT) | |
1024 | return 0; | |
1025 | ||
1026 | if (!s->runtime_journal) | |
1027 | return 0; | |
1028 | ||
caa2f4c0 | 1029 | system_journal_open(s, true); |
d025f1e4 ZJS |
1030 | |
1031 | if (!s->system_journal) | |
1032 | return 0; | |
1033 | ||
1034 | log_debug("Flushing to /var..."); | |
1035 | ||
fbb63411 LP |
1036 | start = now(CLOCK_MONOTONIC); |
1037 | ||
d025f1e4 | 1038 | r = sd_id128_get_machine(&machine); |
00a16861 | 1039 | if (r < 0) |
d025f1e4 | 1040 | return r; |
d025f1e4 ZJS |
1041 | |
1042 | r = sd_journal_open(&j, SD_JOURNAL_RUNTIME_ONLY); | |
23bbb0de MS |
1043 | if (r < 0) |
1044 | return log_error_errno(r, "Failed to read runtime journal: %m"); | |
d025f1e4 | 1045 | |
93b73b06 LP |
1046 | sd_journal_set_data_threshold(j, 0); |
1047 | ||
d025f1e4 ZJS |
1048 | SD_JOURNAL_FOREACH(j) { |
1049 | Object *o = NULL; | |
1050 | JournalFile *f; | |
1051 | ||
1052 | f = j->current_file; | |
1053 | assert(f && f->current_offset > 0); | |
1054 | ||
fbb63411 LP |
1055 | n++; |
1056 | ||
d025f1e4 ZJS |
1057 | r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); |
1058 | if (r < 0) { | |
da927ba9 | 1059 | log_error_errno(r, "Can't read entry: %m"); |
d025f1e4 ZJS |
1060 | goto finish; |
1061 | } | |
1062 | ||
1063 | r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL); | |
1064 | if (r >= 0) | |
1065 | continue; | |
1066 | ||
1067 | if (!shall_try_append_again(s->system_journal, r)) { | |
da927ba9 | 1068 | log_error_errno(r, "Can't write entry: %m"); |
d025f1e4 ZJS |
1069 | goto finish; |
1070 | } | |
1071 | ||
1072 | server_rotate(s); | |
1073 | server_vacuum(s); | |
1074 | ||
253f59df LP |
1075 | if (!s->system_journal) { |
1076 | log_notice("Didn't flush runtime journal since rotation of system journal wasn't successful."); | |
1077 | r = -EIO; | |
1078 | goto finish; | |
1079 | } | |
1080 | ||
d025f1e4 ZJS |
1081 | log_debug("Retrying write."); |
1082 | r = journal_file_copy_entry(f, s->system_journal, o, f->current_offset, NULL, NULL, NULL); | |
1083 | if (r < 0) { | |
da927ba9 | 1084 | log_error_errno(r, "Can't write entry: %m"); |
d025f1e4 ZJS |
1085 | goto finish; |
1086 | } | |
1087 | } | |
1088 | ||
1089 | finish: | |
1090 | journal_file_post_change(s->system_journal); | |
1091 | ||
1092 | journal_file_close(s->runtime_journal); | |
1093 | s->runtime_journal = NULL; | |
1094 | ||
1095 | if (r >= 0) | |
c6878637 | 1096 | (void) rm_rf("/run/log/journal", REMOVE_ROOT); |
d025f1e4 | 1097 | |
763c7aa2 | 1098 | sd_journal_close(j); |
d025f1e4 | 1099 | |
fbb63411 LP |
1100 | server_driver_message(s, SD_ID128_NULL, "Time spent on flushing to /var is %s for %u entries.", format_timespan(ts, sizeof(ts), now(CLOCK_MONOTONIC) - start, 0), n); |
1101 | ||
d025f1e4 ZJS |
1102 | return r; |
1103 | } | |
1104 | ||
8531ae70 | 1105 | int server_process_datagram(sd_event_source *es, int fd, uint32_t revents, void *userdata) { |
f9a810be | 1106 | Server *s = userdata; |
a315ac4e LP |
1107 | struct ucred *ucred = NULL; |
1108 | struct timeval *tv = NULL; | |
1109 | struct cmsghdr *cmsg; | |
1110 | char *label = NULL; | |
1111 | size_t label_len = 0, m; | |
1112 | struct iovec iovec; | |
1113 | ssize_t n; | |
1114 | int *fds = NULL, v = 0; | |
1115 | unsigned n_fds = 0; | |
1116 | ||
1117 | union { | |
1118 | struct cmsghdr cmsghdr; | |
1119 | ||
1120 | /* We use NAME_MAX space for the SELinux label | |
1121 | * here. The kernel currently enforces no | |
1122 | * limit, but according to suggestions from | |
1123 | * the SELinux people this will change and it | |
1124 | * will probably be identical to NAME_MAX. For | |
1125 | * now we use that, but this should be updated | |
1126 | * one day when the final limit is known. */ | |
1127 | uint8_t buf[CMSG_SPACE(sizeof(struct ucred)) + | |
1128 | CMSG_SPACE(sizeof(struct timeval)) + | |
1129 | CMSG_SPACE(sizeof(int)) + /* fd */ | |
1130 | CMSG_SPACE(NAME_MAX)]; /* selinux label */ | |
1131 | } control = {}; | |
1132 | ||
1133 | union sockaddr_union sa = {}; | |
1134 | ||
1135 | struct msghdr msghdr = { | |
1136 | .msg_iov = &iovec, | |
1137 | .msg_iovlen = 1, | |
1138 | .msg_control = &control, | |
1139 | .msg_controllen = sizeof(control), | |
1140 | .msg_name = &sa, | |
1141 | .msg_namelen = sizeof(sa), | |
1142 | }; | |
f9a810be | 1143 | |
d025f1e4 | 1144 | assert(s); |
875c2e22 | 1145 | assert(fd == s->native_fd || fd == s->syslog_fd || fd == s->audit_fd); |
f9a810be LP |
1146 | |
1147 | if (revents != EPOLLIN) { | |
1148 | log_error("Got invalid event from epoll for datagram fd: %"PRIx32, revents); | |
1149 | return -EIO; | |
1150 | } | |
1151 | ||
a315ac4e LP |
1152 | /* Try to get the right size, if we can. (Not all |
1153 | * sockets support SIOCINQ, hence we just try, but | |
1154 | * don't rely on it. */ | |
1155 | (void) ioctl(fd, SIOCINQ, &v); | |
d025f1e4 | 1156 | |
a315ac4e LP |
1157 | /* Fix it up, if it is too small. We use the same fixed value as auditd here. Awful! */ |
1158 | m = PAGE_ALIGN(MAX3((size_t) v + 1, | |
1159 | (size_t) LINE_MAX, | |
1160 | ALIGN(sizeof(struct nlmsghdr)) + ALIGN((size_t) MAX_AUDIT_MESSAGE_LENGTH)) + 1); | |
d025f1e4 | 1161 | |
a315ac4e LP |
1162 | if (!GREEDY_REALLOC(s->buffer, s->buffer_size, m)) |
1163 | return log_oom(); | |
875c2e22 | 1164 | |
a315ac4e LP |
1165 | iovec.iov_base = s->buffer; |
1166 | iovec.iov_len = s->buffer_size - 1; /* Leave room for trailing NUL we add later */ | |
d025f1e4 | 1167 | |
a315ac4e LP |
1168 | n = recvmsg(fd, &msghdr, MSG_DONTWAIT|MSG_CMSG_CLOEXEC); |
1169 | if (n < 0) { | |
1170 | if (errno == EINTR || errno == EAGAIN) | |
1171 | return 0; | |
875c2e22 | 1172 | |
a315ac4e LP |
1173 | return log_error_errno(errno, "recvmsg() failed: %m"); |
1174 | } | |
875c2e22 | 1175 | |
a315ac4e LP |
1176 | CMSG_FOREACH(cmsg, &msghdr) { |
1177 | ||
1178 | if (cmsg->cmsg_level == SOL_SOCKET && | |
1179 | cmsg->cmsg_type == SCM_CREDENTIALS && | |
1180 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))) | |
1181 | ucred = (struct ucred*) CMSG_DATA(cmsg); | |
1182 | else if (cmsg->cmsg_level == SOL_SOCKET && | |
1183 | cmsg->cmsg_type == SCM_SECURITY) { | |
1184 | label = (char*) CMSG_DATA(cmsg); | |
1185 | label_len = cmsg->cmsg_len - CMSG_LEN(0); | |
1186 | } else if (cmsg->cmsg_level == SOL_SOCKET && | |
1187 | cmsg->cmsg_type == SO_TIMESTAMP && | |
1188 | cmsg->cmsg_len == CMSG_LEN(sizeof(struct timeval))) | |
1189 | tv = (struct timeval*) CMSG_DATA(cmsg); | |
1190 | else if (cmsg->cmsg_level == SOL_SOCKET && | |
1191 | cmsg->cmsg_type == SCM_RIGHTS) { | |
1192 | fds = (int*) CMSG_DATA(cmsg); | |
1193 | n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int); | |
d025f1e4 | 1194 | } |
a315ac4e | 1195 | } |
d025f1e4 | 1196 | |
a315ac4e LP |
1197 | /* And a trailing NUL, just in case */ |
1198 | s->buffer[n] = 0; | |
1199 | ||
1200 | if (fd == s->syslog_fd) { | |
1201 | if (n > 0 && n_fds == 0) | |
1202 | server_process_syslog_message(s, strstrip(s->buffer), ucred, tv, label, label_len); | |
1203 | else if (n_fds > 0) | |
1204 | log_warning("Got file descriptors via syslog socket. Ignoring."); | |
1205 | ||
1206 | } else if (fd == s->native_fd) { | |
1207 | if (n > 0 && n_fds == 0) | |
1208 | server_process_native_message(s, s->buffer, n, ucred, tv, label, label_len); | |
1209 | else if (n == 0 && n_fds == 1) | |
1210 | server_process_native_file(s, fds[0], ucred, tv, label, label_len); | |
1211 | else if (n_fds > 0) | |
1212 | log_warning("Got too many file descriptors via native socket. Ignoring."); | |
1213 | ||
1214 | } else { | |
1215 | assert(fd == s->audit_fd); | |
1216 | ||
1217 | if (n > 0 && n_fds == 0) | |
1218 | server_process_audit_message(s, s->buffer, n, ucred, &sa, msghdr.msg_namelen); | |
1219 | else if (n_fds > 0) | |
1220 | log_warning("Got file descriptors via audit socket. Ignoring."); | |
f9a810be | 1221 | } |
a315ac4e LP |
1222 | |
1223 | close_many(fds, n_fds); | |
1224 | return 0; | |
f9a810be | 1225 | } |
d025f1e4 | 1226 | |
f9a810be LP |
1227 | static int dispatch_sigusr1(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) { |
1228 | Server *s = userdata; | |
d025f1e4 | 1229 | |
f9a810be | 1230 | assert(s); |
d025f1e4 | 1231 | |
f9a810be | 1232 | log_info("Received request to flush runtime journal from PID %"PRIu32, si->ssi_pid); |
d025f1e4 | 1233 | |
f9a810be LP |
1234 | server_flush_to_var(s); |
1235 | server_sync(s); | |
3bfd4e0c | 1236 | server_vacuum(s); |
d025f1e4 | 1237 | |
74055aa7 LP |
1238 | touch("/run/systemd/journal/flushed"); |
1239 | ||
f9a810be LP |
1240 | return 0; |
1241 | } | |
d025f1e4 | 1242 | |
f9a810be LP |
1243 | static int dispatch_sigusr2(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) { |
1244 | Server *s = userdata; | |
d025f1e4 | 1245 | |
f9a810be | 1246 | assert(s); |
d025f1e4 | 1247 | |
f9a810be LP |
1248 | log_info("Received request to rotate journal from PID %"PRIu32, si->ssi_pid); |
1249 | server_rotate(s); | |
1250 | server_vacuum(s); | |
d025f1e4 | 1251 | |
f9a810be LP |
1252 | return 0; |
1253 | } | |
d025f1e4 | 1254 | |
f9a810be LP |
1255 | static int dispatch_sigterm(sd_event_source *es, const struct signalfd_siginfo *si, void *userdata) { |
1256 | Server *s = userdata; | |
d025f1e4 | 1257 | |
f9a810be | 1258 | assert(s); |
d025f1e4 | 1259 | |
4daf54a8 | 1260 | log_received_signal(LOG_INFO, si); |
d025f1e4 | 1261 | |
6203e07a | 1262 | sd_event_exit(s->event, 0); |
d025f1e4 ZJS |
1263 | return 0; |
1264 | } | |
1265 | ||
f9a810be | 1266 | static int setup_signals(Server *s) { |
f9a810be | 1267 | int r; |
d025f1e4 ZJS |
1268 | |
1269 | assert(s); | |
1270 | ||
72c0a2c2 | 1271 | assert(sigprocmask_many(SIG_SETMASK, NULL, SIGINT, SIGTERM, SIGUSR1, SIGUSR2, -1) >= 0); |
d025f1e4 | 1272 | |
151b9b96 | 1273 | r = sd_event_add_signal(s->event, &s->sigusr1_event_source, SIGUSR1, dispatch_sigusr1, s); |
f9a810be LP |
1274 | if (r < 0) |
1275 | return r; | |
1276 | ||
151b9b96 | 1277 | r = sd_event_add_signal(s->event, &s->sigusr2_event_source, SIGUSR2, dispatch_sigusr2, s); |
f9a810be LP |
1278 | if (r < 0) |
1279 | return r; | |
d025f1e4 | 1280 | |
151b9b96 | 1281 | r = sd_event_add_signal(s->event, &s->sigterm_event_source, SIGTERM, dispatch_sigterm, s); |
f9a810be LP |
1282 | if (r < 0) |
1283 | return r; | |
d025f1e4 | 1284 | |
151b9b96 | 1285 | r = sd_event_add_signal(s->event, &s->sigint_event_source, SIGINT, dispatch_sigterm, s); |
f9a810be LP |
1286 | if (r < 0) |
1287 | return r; | |
d025f1e4 ZJS |
1288 | |
1289 | return 0; | |
1290 | } | |
1291 | ||
1292 | static int server_parse_proc_cmdline(Server *s) { | |
7fd1b19b | 1293 | _cleanup_free_ char *line = NULL; |
a2a5291b | 1294 | const char *w, *state; |
d025f1e4 | 1295 | size_t l; |
74df0fca | 1296 | int r; |
d025f1e4 | 1297 | |
74df0fca | 1298 | r = proc_cmdline(&line); |
b5884878 | 1299 | if (r < 0) { |
da927ba9 | 1300 | log_warning_errno(r, "Failed to read /proc/cmdline, ignoring: %m"); |
d025f1e4 | 1301 | return 0; |
b5884878 | 1302 | } |
d025f1e4 ZJS |
1303 | |
1304 | FOREACH_WORD_QUOTED(w, l, line, state) { | |
7fd1b19b | 1305 | _cleanup_free_ char *word; |
d025f1e4 ZJS |
1306 | |
1307 | word = strndup(w, l); | |
db91ea32 ZJS |
1308 | if (!word) |
1309 | return -ENOMEM; | |
d025f1e4 ZJS |
1310 | |
1311 | if (startswith(word, "systemd.journald.forward_to_syslog=")) { | |
1312 | r = parse_boolean(word + 35); | |
1313 | if (r < 0) | |
1314 | log_warning("Failed to parse forward to syslog switch %s. Ignoring.", word + 35); | |
1315 | else | |
1316 | s->forward_to_syslog = r; | |
1317 | } else if (startswith(word, "systemd.journald.forward_to_kmsg=")) { | |
1318 | r = parse_boolean(word + 33); | |
1319 | if (r < 0) | |
1320 | log_warning("Failed to parse forward to kmsg switch %s. Ignoring.", word + 33); | |
1321 | else | |
1322 | s->forward_to_kmsg = r; | |
1323 | } else if (startswith(word, "systemd.journald.forward_to_console=")) { | |
1324 | r = parse_boolean(word + 36); | |
1325 | if (r < 0) | |
1326 | log_warning("Failed to parse forward to console switch %s. Ignoring.", word + 36); | |
1327 | else | |
1328 | s->forward_to_console = r; | |
40b71e89 ST |
1329 | } else if (startswith(word, "systemd.journald.forward_to_wall=")) { |
1330 | r = parse_boolean(word + 33); | |
1331 | if (r < 0) | |
1332 | log_warning("Failed to parse forward to wall switch %s. Ignoring.", word + 33); | |
1333 | else | |
1334 | s->forward_to_wall = r; | |
d025f1e4 ZJS |
1335 | } else if (startswith(word, "systemd.journald")) |
1336 | log_warning("Invalid systemd.journald parameter. Ignoring."); | |
d025f1e4 | 1337 | } |
b2fadec6 | 1338 | /* do not warn about state here, since probably systemd already did */ |
d025f1e4 | 1339 | |
db91ea32 | 1340 | return 0; |
d025f1e4 ZJS |
1341 | } |
1342 | ||
1343 | static int server_parse_config_file(Server *s) { | |
d025f1e4 ZJS |
1344 | assert(s); |
1345 | ||
a9edaeff JT |
1346 | return config_parse_many("/etc/systemd/journald.conf", |
1347 | CONF_DIRS_NULSTR("systemd/journald.conf"), | |
1348 | "Journal\0", | |
1349 | config_item_perf_lookup, journald_gperf_lookup, | |
1350 | false, s); | |
d025f1e4 ZJS |
1351 | } |
1352 | ||
f9a810be LP |
1353 | static int server_dispatch_sync(sd_event_source *es, usec_t t, void *userdata) { |
1354 | Server *s = userdata; | |
26687bf8 OS |
1355 | |
1356 | assert(s); | |
1357 | ||
f9a810be | 1358 | server_sync(s); |
26687bf8 OS |
1359 | return 0; |
1360 | } | |
1361 | ||
d07f7b9e | 1362 | int server_schedule_sync(Server *s, int priority) { |
26687bf8 OS |
1363 | int r; |
1364 | ||
26687bf8 OS |
1365 | assert(s); |
1366 | ||
d07f7b9e LP |
1367 | if (priority <= LOG_CRIT) { |
1368 | /* Immediately sync to disk when this is of priority CRIT, ALERT, EMERG */ | |
1369 | server_sync(s); | |
1370 | return 0; | |
1371 | } | |
1372 | ||
26687bf8 OS |
1373 | if (s->sync_scheduled) |
1374 | return 0; | |
1375 | ||
f9a810be LP |
1376 | if (s->sync_interval_usec > 0) { |
1377 | usec_t when; | |
ca267016 | 1378 | |
6a0f1f6d | 1379 | r = sd_event_now(s->event, CLOCK_MONOTONIC, &when); |
f9a810be LP |
1380 | if (r < 0) |
1381 | return r; | |
26687bf8 | 1382 | |
f9a810be LP |
1383 | when += s->sync_interval_usec; |
1384 | ||
1385 | if (!s->sync_event_source) { | |
6a0f1f6d LP |
1386 | r = sd_event_add_time( |
1387 | s->event, | |
1388 | &s->sync_event_source, | |
1389 | CLOCK_MONOTONIC, | |
1390 | when, 0, | |
1391 | server_dispatch_sync, s); | |
f9a810be LP |
1392 | if (r < 0) |
1393 | return r; | |
1394 | ||
1395 | r = sd_event_source_set_priority(s->sync_event_source, SD_EVENT_PRIORITY_IMPORTANT); | |
1396 | } else { | |
1397 | r = sd_event_source_set_time(s->sync_event_source, when); | |
1398 | if (r < 0) | |
1399 | return r; | |
1400 | ||
1401 | r = sd_event_source_set_enabled(s->sync_event_source, SD_EVENT_ONESHOT); | |
1402 | } | |
26687bf8 | 1403 | if (r < 0) |
f9a810be | 1404 | return r; |
26687bf8 | 1405 | |
f9a810be LP |
1406 | s->sync_scheduled = true; |
1407 | } | |
26687bf8 OS |
1408 | |
1409 | return 0; | |
1410 | } | |
1411 | ||
0c24bb23 LP |
1412 | static int dispatch_hostname_change(sd_event_source *es, int fd, uint32_t revents, void *userdata) { |
1413 | Server *s = userdata; | |
1414 | ||
1415 | assert(s); | |
1416 | ||
1417 | server_cache_hostname(s); | |
1418 | return 0; | |
1419 | } | |
1420 | ||
1421 | static int server_open_hostname(Server *s) { | |
1422 | int r; | |
1423 | ||
1424 | assert(s); | |
1425 | ||
1426 | s->hostname_fd = open("/proc/sys/kernel/hostname", O_RDONLY|O_CLOEXEC|O_NDELAY|O_NOCTTY); | |
4a62c710 MS |
1427 | if (s->hostname_fd < 0) |
1428 | return log_error_errno(errno, "Failed to open /proc/sys/kernel/hostname: %m"); | |
0c24bb23 | 1429 | |
151b9b96 | 1430 | r = sd_event_add_io(s->event, &s->hostname_event_source, s->hostname_fd, 0, dispatch_hostname_change, s); |
0c24bb23 | 1431 | if (r < 0) { |
28def94c DR |
1432 | /* kernels prior to 3.2 don't support polling this file. Ignore |
1433 | * the failure. */ | |
1434 | if (r == -EPERM) { | |
1435 | log_warning("Failed to register hostname fd in event loop: %s. Ignoring.", | |
1436 | strerror(-r)); | |
03e334a1 | 1437 | s->hostname_fd = safe_close(s->hostname_fd); |
28def94c DR |
1438 | return 0; |
1439 | } | |
1440 | ||
23bbb0de | 1441 | return log_error_errno(r, "Failed to register hostname fd in event loop: %m"); |
0c24bb23 LP |
1442 | } |
1443 | ||
1444 | r = sd_event_source_set_priority(s->hostname_event_source, SD_EVENT_PRIORITY_IMPORTANT-10); | |
23bbb0de MS |
1445 | if (r < 0) |
1446 | return log_error_errno(r, "Failed to adjust priority of host name event source: %m"); | |
0c24bb23 LP |
1447 | |
1448 | return 0; | |
1449 | } | |
1450 | ||
d025f1e4 | 1451 | int server_init(Server *s) { |
13790add | 1452 | _cleanup_fdset_free_ FDSet *fds = NULL; |
d025f1e4 ZJS |
1453 | int n, r, fd; |
1454 | ||
1455 | assert(s); | |
1456 | ||
1457 | zero(*s); | |
875c2e22 | 1458 | s->syslog_fd = s->native_fd = s->stdout_fd = s->dev_kmsg_fd = s->audit_fd = s->hostname_fd = -1; |
d025f1e4 ZJS |
1459 | s->compress = true; |
1460 | s->seal = true; | |
1461 | ||
26687bf8 OS |
1462 | s->sync_interval_usec = DEFAULT_SYNC_INTERVAL_USEC; |
1463 | s->sync_scheduled = false; | |
1464 | ||
d025f1e4 ZJS |
1465 | s->rate_limit_interval = DEFAULT_RATE_LIMIT_INTERVAL; |
1466 | s->rate_limit_burst = DEFAULT_RATE_LIMIT_BURST; | |
1467 | ||
40b71e89 | 1468 | s->forward_to_wall = true; |
d025f1e4 | 1469 | |
e150e820 MB |
1470 | s->max_file_usec = DEFAULT_MAX_FILE_USEC; |
1471 | ||
d025f1e4 ZJS |
1472 | s->max_level_store = LOG_DEBUG; |
1473 | s->max_level_syslog = LOG_DEBUG; | |
1474 | s->max_level_kmsg = LOG_NOTICE; | |
1475 | s->max_level_console = LOG_INFO; | |
40b71e89 | 1476 | s->max_level_wall = LOG_EMERG; |
d025f1e4 ZJS |
1477 | |
1478 | memset(&s->system_metrics, 0xFF, sizeof(s->system_metrics)); | |
1479 | memset(&s->runtime_metrics, 0xFF, sizeof(s->runtime_metrics)); | |
1480 | ||
1481 | server_parse_config_file(s); | |
1482 | server_parse_proc_cmdline(s); | |
d288f79f | 1483 | if (!!s->rate_limit_interval ^ !!s->rate_limit_burst) { |
b1389b0d ZJS |
1484 | log_debug("Setting both rate limit interval and burst from "USEC_FMT",%u to 0,0", |
1485 | s->rate_limit_interval, s->rate_limit_burst); | |
d288f79f ZJS |
1486 | s->rate_limit_interval = s->rate_limit_burst = 0; |
1487 | } | |
d025f1e4 ZJS |
1488 | |
1489 | mkdir_p("/run/systemd/journal", 0755); | |
1490 | ||
43cf8388 | 1491 | s->user_journals = ordered_hashmap_new(NULL); |
d025f1e4 ZJS |
1492 | if (!s->user_journals) |
1493 | return log_oom(); | |
1494 | ||
1495 | s->mmap = mmap_cache_new(); | |
1496 | if (!s->mmap) | |
1497 | return log_oom(); | |
1498 | ||
f9a810be | 1499 | r = sd_event_default(&s->event); |
23bbb0de MS |
1500 | if (r < 0) |
1501 | return log_error_errno(r, "Failed to create event loop: %m"); | |
d025f1e4 | 1502 | |
f9a810be LP |
1503 | sd_event_set_watchdog(s->event, true); |
1504 | ||
d025f1e4 | 1505 | n = sd_listen_fds(true); |
23bbb0de MS |
1506 | if (n < 0) |
1507 | return log_error_errno(n, "Failed to read listening file descriptors from environment: %m"); | |
d025f1e4 ZJS |
1508 | |
1509 | for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) { | |
1510 | ||
1511 | if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/run/systemd/journal/socket", 0) > 0) { | |
1512 | ||
1513 | if (s->native_fd >= 0) { | |
1514 | log_error("Too many native sockets passed."); | |
1515 | return -EINVAL; | |
1516 | } | |
1517 | ||
1518 | s->native_fd = fd; | |
1519 | ||
1520 | } else if (sd_is_socket_unix(fd, SOCK_STREAM, 1, "/run/systemd/journal/stdout", 0) > 0) { | |
1521 | ||
1522 | if (s->stdout_fd >= 0) { | |
1523 | log_error("Too many stdout sockets passed."); | |
1524 | return -EINVAL; | |
1525 | } | |
1526 | ||
1527 | s->stdout_fd = fd; | |
1528 | ||
03ee5c38 LP |
1529 | } else if (sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/dev/log", 0) > 0 || |
1530 | sd_is_socket_unix(fd, SOCK_DGRAM, -1, "/run/systemd/journal/dev-log", 0) > 0) { | |
d025f1e4 ZJS |
1531 | |
1532 | if (s->syslog_fd >= 0) { | |
1533 | log_error("Too many /dev/log sockets passed."); | |
1534 | return -EINVAL; | |
1535 | } | |
1536 | ||
1537 | s->syslog_fd = fd; | |
1538 | ||
875c2e22 LP |
1539 | } else if (sd_is_socket(fd, AF_NETLINK, SOCK_RAW, -1) > 0) { |
1540 | ||
1541 | if (s->audit_fd >= 0) { | |
1542 | log_error("Too many audit sockets passed."); | |
1543 | return -EINVAL; | |
1544 | } | |
1545 | ||
1546 | s->audit_fd = fd; | |
1547 | ||
4ec3cd73 | 1548 | } else { |
4ec3cd73 | 1549 | |
13790add LP |
1550 | if (!fds) { |
1551 | fds = fdset_new(); | |
1552 | if (!fds) | |
1553 | return log_oom(); | |
1554 | } | |
4ec3cd73 | 1555 | |
13790add LP |
1556 | r = fdset_put(fds, fd); |
1557 | if (r < 0) | |
1558 | return log_oom(); | |
4ec3cd73 | 1559 | } |
d025f1e4 ZJS |
1560 | } |
1561 | ||
13790add | 1562 | r = server_open_stdout_socket(s, fds); |
d025f1e4 ZJS |
1563 | if (r < 0) |
1564 | return r; | |
1565 | ||
13790add LP |
1566 | if (fdset_size(fds) > 0) { |
1567 | log_warning("%u unknown file descriptors passed, closing.", fdset_size(fds)); | |
1568 | fds = fdset_free(fds); | |
1569 | } | |
1570 | ||
1571 | r = server_open_syslog_socket(s); | |
d025f1e4 ZJS |
1572 | if (r < 0) |
1573 | return r; | |
1574 | ||
13790add | 1575 | r = server_open_native_socket(s); |
d025f1e4 ZJS |
1576 | if (r < 0) |
1577 | return r; | |
1578 | ||
1579 | r = server_open_dev_kmsg(s); | |
1580 | if (r < 0) | |
1581 | return r; | |
1582 | ||
875c2e22 LP |
1583 | r = server_open_audit(s); |
1584 | if (r < 0) | |
1585 | return r; | |
1586 | ||
d025f1e4 ZJS |
1587 | r = server_open_kernel_seqnum(s); |
1588 | if (r < 0) | |
1589 | return r; | |
1590 | ||
0c24bb23 LP |
1591 | r = server_open_hostname(s); |
1592 | if (r < 0) | |
1593 | return r; | |
1594 | ||
f9a810be | 1595 | r = setup_signals(s); |
d025f1e4 ZJS |
1596 | if (r < 0) |
1597 | return r; | |
1598 | ||
1599 | s->udev = udev_new(); | |
1600 | if (!s->udev) | |
1601 | return -ENOMEM; | |
1602 | ||
f9a810be | 1603 | s->rate_limit = journal_rate_limit_new(s->rate_limit_interval, s->rate_limit_burst); |
d025f1e4 ZJS |
1604 | if (!s->rate_limit) |
1605 | return -ENOMEM; | |
1606 | ||
e9174f29 LP |
1607 | r = cg_get_root_path(&s->cgroup_root); |
1608 | if (r < 0) | |
1609 | return r; | |
1610 | ||
0c24bb23 LP |
1611 | server_cache_hostname(s); |
1612 | server_cache_boot_id(s); | |
1613 | server_cache_machine_id(s); | |
1614 | ||
caa2f4c0 | 1615 | r = system_journal_open(s, false); |
d025f1e4 ZJS |
1616 | if (r < 0) |
1617 | return r; | |
1618 | ||
1619 | return 0; | |
1620 | } | |
1621 | ||
1622 | void server_maybe_append_tags(Server *s) { | |
1623 | #ifdef HAVE_GCRYPT | |
1624 | JournalFile *f; | |
1625 | Iterator i; | |
1626 | usec_t n; | |
1627 | ||
1628 | n = now(CLOCK_REALTIME); | |
1629 | ||
1630 | if (s->system_journal) | |
1631 | journal_file_maybe_append_tag(s->system_journal, n); | |
1632 | ||
43cf8388 | 1633 | ORDERED_HASHMAP_FOREACH(f, s->user_journals, i) |
d025f1e4 ZJS |
1634 | journal_file_maybe_append_tag(f, n); |
1635 | #endif | |
1636 | } | |
1637 | ||
1638 | void server_done(Server *s) { | |
1639 | JournalFile *f; | |
1640 | assert(s); | |
1641 | ||
1642 | while (s->stdout_streams) | |
1643 | stdout_stream_free(s->stdout_streams); | |
1644 | ||
1645 | if (s->system_journal) | |
1646 | journal_file_close(s->system_journal); | |
1647 | ||
1648 | if (s->runtime_journal) | |
1649 | journal_file_close(s->runtime_journal); | |
1650 | ||
43cf8388 | 1651 | while ((f = ordered_hashmap_steal_first(s->user_journals))) |
d025f1e4 ZJS |
1652 | journal_file_close(f); |
1653 | ||
43cf8388 | 1654 | ordered_hashmap_free(s->user_journals); |
d025f1e4 | 1655 | |
f9a810be LP |
1656 | sd_event_source_unref(s->syslog_event_source); |
1657 | sd_event_source_unref(s->native_event_source); | |
1658 | sd_event_source_unref(s->stdout_event_source); | |
1659 | sd_event_source_unref(s->dev_kmsg_event_source); | |
875c2e22 | 1660 | sd_event_source_unref(s->audit_event_source); |
f9a810be LP |
1661 | sd_event_source_unref(s->sync_event_source); |
1662 | sd_event_source_unref(s->sigusr1_event_source); | |
1663 | sd_event_source_unref(s->sigusr2_event_source); | |
1664 | sd_event_source_unref(s->sigterm_event_source); | |
1665 | sd_event_source_unref(s->sigint_event_source); | |
0c24bb23 | 1666 | sd_event_source_unref(s->hostname_event_source); |
f9a810be | 1667 | sd_event_unref(s->event); |
d025f1e4 | 1668 | |
03e334a1 LP |
1669 | safe_close(s->syslog_fd); |
1670 | safe_close(s->native_fd); | |
1671 | safe_close(s->stdout_fd); | |
1672 | safe_close(s->dev_kmsg_fd); | |
875c2e22 | 1673 | safe_close(s->audit_fd); |
03e334a1 | 1674 | safe_close(s->hostname_fd); |
0c24bb23 | 1675 | |
d025f1e4 ZJS |
1676 | if (s->rate_limit) |
1677 | journal_rate_limit_free(s->rate_limit); | |
1678 | ||
1679 | if (s->kernel_seqnum) | |
1680 | munmap(s->kernel_seqnum, sizeof(uint64_t)); | |
1681 | ||
1682 | free(s->buffer); | |
1683 | free(s->tty_path); | |
e9174f29 | 1684 | free(s->cgroup_root); |
99d0966e | 1685 | free(s->hostname_field); |
d025f1e4 ZJS |
1686 | |
1687 | if (s->mmap) | |
1688 | mmap_cache_unref(s->mmap); | |
1689 | ||
1690 | if (s->udev) | |
1691 | udev_unref(s->udev); | |
1692 | } |