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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
87d2c1ff | 2 | |
87d2c1ff | 3 | #include <errno.h> |
87d2c1ff | 4 | #include <fcntl.h> |
82e24b00 | 5 | #include <inttypes.h> |
07630cea LP |
6 | #include <linux/magic.h> |
7 | #include <poll.h> | |
3fbf9cbb | 8 | #include <stddef.h> |
50f20cfd | 9 | #include <sys/inotify.h> |
85210bff | 10 | #include <sys/vfs.h> |
07630cea | 11 | #include <unistd.h> |
87d2c1ff LP |
12 | |
13 | #include "sd-journal.h" | |
c004493c | 14 | |
b5efdb8a | 15 | #include "alloc-util.h" |
07630cea LP |
16 | #include "catalog.h" |
17 | #include "compress.h" | |
a0956174 | 18 | #include "dirent-util.h" |
686d13b9 | 19 | #include "env-file.h" |
9e8b1ec0 | 20 | #include "escape.h" |
3ffd4af2 | 21 | #include "fd-util.h" |
07630cea | 22 | #include "fileio.h" |
f97b34a6 | 23 | #include "format-util.h" |
77601719 | 24 | #include "fs-util.h" |
07630cea LP |
25 | #include "hashmap.h" |
26 | #include "hostname-util.h" | |
a9be0692 | 27 | #include "id128-util.h" |
c004493c | 28 | #include "io-util.h" |
87d2c1ff | 29 | #include "journal-def.h" |
cec736d2 | 30 | #include "journal-file.h" |
07630cea | 31 | #include "journal-internal.h" |
cec736d2 | 32 | #include "list.h" |
de7b95cd | 33 | #include "lookup3.h" |
d8b4d14d | 34 | #include "nulstr-util.h" |
07630cea | 35 | #include "path-util.h" |
dccca82b | 36 | #include "process-util.h" |
d4205751 | 37 | #include "replace-var.h" |
15a5e950 LP |
38 | #include "stat-util.h" |
39 | #include "stdio-util.h" | |
07630cea LP |
40 | #include "string-util.h" |
41 | #include "strv.h" | |
456aa879 | 42 | #include "syslog-util.h" |
87d2c1ff | 43 | |
9e8abdf0 LP |
44 | #define JOURNAL_FILES_MAX 7168 |
45 | ||
85210bff LP |
46 | #define JOURNAL_FILES_RECHECK_USEC (2 * USEC_PER_SEC) |
47 | ||
8dd7cbce LP |
48 | /* The maximum size of variable values we'll expand in catalog entries. We bind this to PATH_MAX for now, as |
49 | * we want to be able to show all officially valid paths at least */ | |
50 | #define REPLACE_VAR_MAX PATH_MAX | |
d4205751 | 51 | |
93b73b06 LP |
52 | #define DEFAULT_DATA_THRESHOLD (64*1024) |
53 | ||
a9a245c1 ZJS |
54 | static void remove_file_real(sd_journal *j, JournalFile *f); |
55 | ||
a65f06bb ZJS |
56 | static bool journal_pid_changed(sd_journal *j) { |
57 | assert(j); | |
58 | ||
59 | /* We don't support people creating a journal object and | |
60 | * keeping it around over a fork(). Let's complain. */ | |
61 | ||
df0ff127 | 62 | return j->original_pid != getpid_cached(); |
a65f06bb ZJS |
63 | } |
64 | ||
5768d259 LP |
65 | static int journal_put_error(sd_journal *j, int r, const char *path) { |
66 | char *copy; | |
3ac251b8 LP |
67 | int k; |
68 | ||
5768d259 LP |
69 | /* Memorize an error we encountered, and store which |
70 | * file/directory it was generated from. Note that we store | |
71 | * only *one* path per error code, as the error code is the | |
72 | * key into the hashmap, and the path is the value. This means | |
73 | * we keep track only of all error kinds, but not of all error | |
74 | * locations. This has the benefit that the hashmap cannot | |
75 | * grow beyond bounds. | |
76 | * | |
77 | * We return an error here only if we didn't manage to | |
78 | * memorize the real error. */ | |
79 | ||
6fe391c5 ZJS |
80 | if (r >= 0) |
81 | return r; | |
82 | ||
5768d259 | 83 | k = hashmap_ensure_allocated(&j->errors, NULL); |
3ac251b8 LP |
84 | if (k < 0) |
85 | return k; | |
86 | ||
5768d259 LP |
87 | if (path) { |
88 | copy = strdup(path); | |
89 | if (!copy) | |
90 | return -ENOMEM; | |
91 | } else | |
92 | copy = NULL; | |
93 | ||
94 | k = hashmap_put(j->errors, INT_TO_PTR(r), copy); | |
95 | if (k < 0) { | |
96 | free(copy); | |
97 | ||
98 | if (k == -EEXIST) | |
99 | return 0; | |
100 | ||
101 | return k; | |
102 | } | |
103 | ||
104 | return 0; | |
6fe391c5 ZJS |
105 | } |
106 | ||
de190aef | 107 | static void detach_location(sd_journal *j) { |
8f9b6cd9 LP |
108 | Iterator i; |
109 | JournalFile *f; | |
110 | ||
111 | assert(j); | |
112 | ||
113 | j->current_file = NULL; | |
114 | j->current_field = 0; | |
115 | ||
c1f906bd | 116 | ORDERED_HASHMAP_FOREACH(f, j->files, i) |
1fc605b0 | 117 | journal_file_reset_location(f); |
8f9b6cd9 LP |
118 | } |
119 | ||
a87247dd | 120 | static void init_location(Location *l, LocationType type, JournalFile *f, Object *o) { |
de190aef | 121 | assert(l); |
3742095b | 122 | assert(IN_SET(type, LOCATION_DISCRETE, LOCATION_SEEK)); |
de190aef | 123 | assert(f); |
de190aef | 124 | |
bba6e4ae LP |
125 | *l = (Location) { |
126 | .type = type, | |
127 | .seqnum = le64toh(o->entry.seqnum), | |
128 | .seqnum_id = f->header->seqnum_id, | |
129 | .realtime = le64toh(o->entry.realtime), | |
130 | .monotonic = le64toh(o->entry.monotonic), | |
131 | .boot_id = o->entry.boot_id, | |
132 | .xor_hash = le64toh(o->entry.xor_hash), | |
133 | .seqnum_set = true, | |
134 | .realtime_set = true, | |
135 | .monotonic_set = true, | |
136 | .xor_hash_set = true, | |
137 | }; | |
de190aef LP |
138 | } |
139 | ||
1eb6332d | 140 | static void set_location(sd_journal *j, JournalFile *f, Object *o) { |
de190aef LP |
141 | assert(j); |
142 | assert(f); | |
143 | assert(o); | |
144 | ||
1eb6332d | 145 | init_location(&j->current_location, LOCATION_DISCRETE, f, o); |
de190aef LP |
146 | |
147 | j->current_file = f; | |
148 | j->current_field = 0; | |
149 | ||
6573ef05 MS |
150 | /* Let f know its candidate entry was picked. */ |
151 | assert(f->location_type == LOCATION_SEEK); | |
152 | f->location_type = LOCATION_DISCRETE; | |
de190aef LP |
153 | } |
154 | ||
cbdca852 LP |
155 | static int match_is_valid(const void *data, size_t size) { |
156 | const char *b, *p; | |
157 | ||
158 | assert(data); | |
159 | ||
160 | if (size < 2) | |
161 | return false; | |
162 | ||
e0567bc8 | 163 | if (((char*) data)[0] == '_' && ((char*) data)[1] == '_') |
cbdca852 LP |
164 | return false; |
165 | ||
166 | b = data; | |
167 | for (p = b; p < b + size; p++) { | |
168 | ||
169 | if (*p == '=') | |
170 | return p > b; | |
171 | ||
172 | if (*p == '_') | |
173 | continue; | |
174 | ||
175 | if (*p >= 'A' && *p <= 'Z') | |
176 | continue; | |
177 | ||
178 | if (*p >= '0' && *p <= '9') | |
179 | continue; | |
180 | ||
181 | return false; | |
182 | } | |
183 | ||
184 | return false; | |
185 | } | |
186 | ||
187 | static bool same_field(const void *_a, size_t s, const void *_b, size_t t) { | |
de190aef LP |
188 | const uint8_t *a = _a, *b = _b; |
189 | size_t j; | |
de190aef LP |
190 | |
191 | for (j = 0; j < s && j < t; j++) { | |
192 | ||
de190aef | 193 | if (a[j] != b[j]) |
cbdca852 | 194 | return false; |
de190aef | 195 | |
cbdca852 LP |
196 | if (a[j] == '=') |
197 | return true; | |
de190aef LP |
198 | } |
199 | ||
bc302926 | 200 | assert_not_reached("\"=\" not found"); |
cbdca852 LP |
201 | } |
202 | ||
203 | static Match *match_new(Match *p, MatchType t) { | |
204 | Match *m; | |
205 | ||
2f5435a1 | 206 | m = new(Match, 1); |
cbdca852 LP |
207 | if (!m) |
208 | return NULL; | |
209 | ||
2f5435a1 LP |
210 | *m = (Match) { |
211 | .type = t, | |
212 | .parent = p, | |
213 | }; | |
cbdca852 | 214 | |
2f5435a1 | 215 | if (p) |
71fda00f | 216 | LIST_PREPEND(matches, p->matches, m); |
cbdca852 LP |
217 | |
218 | return m; | |
219 | } | |
220 | ||
221 | static void match_free(Match *m) { | |
222 | assert(m); | |
223 | ||
224 | while (m->matches) | |
225 | match_free(m->matches); | |
226 | ||
227 | if (m->parent) | |
71fda00f | 228 | LIST_REMOVE(matches, m->parent->matches, m); |
cbdca852 LP |
229 | |
230 | free(m->data); | |
231 | free(m); | |
232 | } | |
233 | ||
234 | static void match_free_if_empty(Match *m) { | |
c5a10d9c | 235 | if (!m || m->matches) |
cbdca852 LP |
236 | return; |
237 | ||
238 | match_free(m); | |
de190aef LP |
239 | } |
240 | ||
a5344d2c | 241 | _public_ int sd_journal_add_match(sd_journal *j, const void *data, size_t size) { |
cd34b3c6 | 242 | Match *l3, *l4, *add_here = NULL, *m; |
cde8c5f7 | 243 | uint64_t hash; |
87d2c1ff | 244 | |
1ae464e0 TA |
245 | assert_return(j, -EINVAL); |
246 | assert_return(!journal_pid_changed(j), -ECHILD); | |
247 | assert_return(data, -EINVAL); | |
cbdca852 LP |
248 | |
249 | if (size == 0) | |
250 | size = strlen(data); | |
251 | ||
1ae464e0 | 252 | assert_return(match_is_valid(data, size), -EINVAL); |
1cc101f1 | 253 | |
cd34b3c6 HH |
254 | /* level 0: AND term |
255 | * level 1: OR terms | |
256 | * level 2: AND terms | |
257 | * level 3: OR terms | |
258 | * level 4: concrete matches */ | |
cbdca852 LP |
259 | |
260 | if (!j->level0) { | |
cd34b3c6 | 261 | j->level0 = match_new(NULL, MATCH_AND_TERM); |
cbdca852 LP |
262 | if (!j->level0) |
263 | return -ENOMEM; | |
264 | } | |
265 | ||
266 | if (!j->level1) { | |
cd34b3c6 | 267 | j->level1 = match_new(j->level0, MATCH_OR_TERM); |
cbdca852 LP |
268 | if (!j->level1) |
269 | return -ENOMEM; | |
270 | } | |
271 | ||
cd34b3c6 HH |
272 | if (!j->level2) { |
273 | j->level2 = match_new(j->level1, MATCH_AND_TERM); | |
274 | if (!j->level2) | |
275 | return -ENOMEM; | |
276 | } | |
277 | ||
278 | assert(j->level0->type == MATCH_AND_TERM); | |
279 | assert(j->level1->type == MATCH_OR_TERM); | |
280 | assert(j->level2->type == MATCH_AND_TERM); | |
ab4979d2 | 281 | |
4ce534f4 LP |
282 | /* Old-style Jenkins (unkeyed) hashing only here. We do not cover new-style siphash (keyed) hashing |
283 | * here, since it's different for each file, and thus can't be pre-calculated in the Match object. */ | |
20b0acfa | 284 | hash = jenkins_hash64(data, size); |
de190aef | 285 | |
cd34b3c6 HH |
286 | LIST_FOREACH(matches, l3, j->level2->matches) { |
287 | assert(l3->type == MATCH_OR_TERM); | |
de190aef | 288 | |
cd34b3c6 HH |
289 | LIST_FOREACH(matches, l4, l3->matches) { |
290 | assert(l4->type == MATCH_DISCRETE); | |
de190aef | 291 | |
cbdca852 LP |
292 | /* Exactly the same match already? Then ignore |
293 | * this addition */ | |
cde8c5f7 | 294 | if (l4->hash == hash && |
cd34b3c6 HH |
295 | l4->size == size && |
296 | memcmp(l4->data, data, size) == 0) | |
cbdca852 LP |
297 | return 0; |
298 | ||
299 | /* Same field? Then let's add this to this OR term */ | |
cd34b3c6 HH |
300 | if (same_field(data, size, l4->data, l4->size)) { |
301 | add_here = l3; | |
cbdca852 LP |
302 | break; |
303 | } | |
304 | } | |
305 | ||
306 | if (add_here) | |
307 | break; | |
de190aef LP |
308 | } |
309 | ||
cbdca852 | 310 | if (!add_here) { |
cd34b3c6 | 311 | add_here = match_new(j->level2, MATCH_OR_TERM); |
cbdca852 LP |
312 | if (!add_here) |
313 | goto fail; | |
314 | } | |
315 | ||
316 | m = match_new(add_here, MATCH_DISCRETE); | |
cec736d2 | 317 | if (!m) |
cbdca852 | 318 | goto fail; |
87d2c1ff | 319 | |
cde8c5f7 | 320 | m->hash = hash; |
1cc101f1 | 321 | m->size = size; |
cbdca852 LP |
322 | m->data = memdup(data, size); |
323 | if (!m->data) | |
324 | goto fail; | |
325 | ||
326 | detach_location(j); | |
327 | ||
328 | return 0; | |
329 | ||
330 | fail: | |
c5a10d9c ZJS |
331 | match_free_if_empty(add_here); |
332 | match_free_if_empty(j->level2); | |
333 | match_free_if_empty(j->level1); | |
334 | match_free_if_empty(j->level0); | |
cbdca852 LP |
335 | |
336 | return -ENOMEM; | |
337 | } | |
338 | ||
cd34b3c6 | 339 | _public_ int sd_journal_add_conjunction(sd_journal *j) { |
1ae464e0 TA |
340 | assert_return(j, -EINVAL); |
341 | assert_return(!journal_pid_changed(j), -ECHILD); | |
1cc101f1 | 342 | |
cbdca852 LP |
343 | if (!j->level0) |
344 | return 0; | |
345 | ||
346 | if (!j->level1) | |
347 | return 0; | |
348 | ||
349 | if (!j->level1->matches) | |
350 | return 0; | |
351 | ||
cd34b3c6 HH |
352 | j->level1 = NULL; |
353 | j->level2 = NULL; | |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
358 | _public_ int sd_journal_add_disjunction(sd_journal *j) { | |
1ae464e0 TA |
359 | assert_return(j, -EINVAL); |
360 | assert_return(!journal_pid_changed(j), -ECHILD); | |
cd34b3c6 HH |
361 | |
362 | if (!j->level0) | |
363 | return 0; | |
364 | ||
365 | if (!j->level1) | |
366 | return 0; | |
367 | ||
368 | if (!j->level2) | |
369 | return 0; | |
370 | ||
371 | if (!j->level2->matches) | |
372 | return 0; | |
cbdca852 | 373 | |
cd34b3c6 | 374 | j->level2 = NULL; |
cbdca852 LP |
375 | return 0; |
376 | } | |
377 | ||
378 | static char *match_make_string(Match *m) { | |
6b430fdb | 379 | char *p = NULL, *r; |
cbdca852 LP |
380 | Match *i; |
381 | bool enclose = false; | |
382 | ||
383 | if (!m) | |
4ad16808 | 384 | return strdup("none"); |
cbdca852 LP |
385 | |
386 | if (m->type == MATCH_DISCRETE) | |
9e8b1ec0 | 387 | return cescape_length(m->data, m->size); |
cbdca852 | 388 | |
cbdca852 LP |
389 | LIST_FOREACH(matches, i, m->matches) { |
390 | char *t, *k; | |
391 | ||
392 | t = match_make_string(i); | |
6b430fdb ZJS |
393 | if (!t) |
394 | return mfree(p); | |
cbdca852 LP |
395 | |
396 | if (p) { | |
605405c6 | 397 | k = strjoin(p, m->type == MATCH_OR_TERM ? " OR " : " AND ", t); |
cbdca852 LP |
398 | free(p); |
399 | free(t); | |
400 | ||
401 | if (!k) | |
402 | return NULL; | |
403 | ||
404 | p = k; | |
405 | ||
406 | enclose = true; | |
bc302926 | 407 | } else |
cbdca852 | 408 | p = t; |
87d2c1ff LP |
409 | } |
410 | ||
cbdca852 | 411 | if (enclose) { |
605405c6 | 412 | r = strjoin("(", p, ")"); |
cbdca852 LP |
413 | free(p); |
414 | return r; | |
415 | } | |
87d2c1ff | 416 | |
cbdca852 LP |
417 | return p; |
418 | } | |
de7b95cd | 419 | |
cbdca852 LP |
420 | char *journal_make_match_string(sd_journal *j) { |
421 | assert(j); | |
8f9b6cd9 | 422 | |
cbdca852 | 423 | return match_make_string(j->level0); |
87d2c1ff LP |
424 | } |
425 | ||
a5344d2c LP |
426 | _public_ void sd_journal_flush_matches(sd_journal *j) { |
427 | if (!j) | |
428 | return; | |
87d2c1ff | 429 | |
cbdca852 LP |
430 | if (j->level0) |
431 | match_free(j->level0); | |
de7b95cd | 432 | |
cd34b3c6 | 433 | j->level0 = j->level1 = j->level2 = NULL; |
8f9b6cd9 | 434 | |
de190aef | 435 | detach_location(j); |
87d2c1ff LP |
436 | } |
437 | ||
b6849042 | 438 | _pure_ static int compare_with_location(const JournalFile *f, const Location *l, const JournalFile *current_file) { |
90c88092 YW |
439 | int r; |
440 | ||
487d3720 | 441 | assert(f); |
de190aef | 442 | assert(l); |
487d3720 | 443 | assert(f->location_type == LOCATION_SEEK); |
4c701096 | 444 | assert(IN_SET(l->type, LOCATION_DISCRETE, LOCATION_SEEK)); |
de190aef LP |
445 | |
446 | if (l->monotonic_set && | |
487d3720 | 447 | sd_id128_equal(f->current_boot_id, l->boot_id) && |
de190aef | 448 | l->realtime_set && |
487d3720 | 449 | f->current_realtime == l->realtime && |
de190aef | 450 | l->xor_hash_set && |
b6849042 GM |
451 | f->current_xor_hash == l->xor_hash && |
452 | f != current_file) | |
de190aef LP |
453 | return 0; |
454 | ||
455 | if (l->seqnum_set && | |
487d3720 | 456 | sd_id128_equal(f->header->seqnum_id, l->seqnum_id)) { |
de190aef | 457 | |
90c88092 YW |
458 | r = CMP(f->current_seqnum, l->seqnum); |
459 | if (r != 0) | |
460 | return r; | |
de190aef LP |
461 | } |
462 | ||
463 | if (l->monotonic_set && | |
487d3720 | 464 | sd_id128_equal(f->current_boot_id, l->boot_id)) { |
de190aef | 465 | |
90c88092 YW |
466 | r = CMP(f->current_monotonic, l->monotonic); |
467 | if (r != 0) | |
468 | return r; | |
de190aef LP |
469 | } |
470 | ||
471 | if (l->realtime_set) { | |
472 | ||
90c88092 YW |
473 | r = CMP(f->current_realtime, l->realtime); |
474 | if (r != 0) | |
475 | return r; | |
de190aef LP |
476 | } |
477 | ||
478 | if (l->xor_hash_set) { | |
de190aef | 479 | |
90c88092 YW |
480 | r = CMP(f->current_xor_hash, l->xor_hash); |
481 | if (r != 0) | |
482 | return r; | |
de190aef LP |
483 | } |
484 | ||
485 | return 0; | |
486 | } | |
487 | ||
cbdca852 LP |
488 | static int next_for_match( |
489 | sd_journal *j, | |
490 | Match *m, | |
491 | JournalFile *f, | |
492 | uint64_t after_offset, | |
493 | direction_t direction, | |
494 | Object **ret, | |
495 | uint64_t *offset) { | |
496 | ||
de7b95cd | 497 | int r; |
cbdca852 LP |
498 | uint64_t np = 0; |
499 | Object *n; | |
de7b95cd LP |
500 | |
501 | assert(j); | |
cbdca852 LP |
502 | assert(m); |
503 | assert(f); | |
de7b95cd | 504 | |
cbdca852 | 505 | if (m->type == MATCH_DISCRETE) { |
4ce534f4 | 506 | uint64_t dp, hash; |
de190aef | 507 | |
4ce534f4 LP |
508 | /* If the keyed hash logic is used, we need to calculate the hash fresh per file. Otherwise |
509 | * we can use what we pre-calculated. */ | |
510 | if (JOURNAL_HEADER_KEYED_HASH(f->header)) | |
511 | hash = journal_file_hash_data(f, m->data, m->size); | |
512 | else | |
513 | hash = m->hash; | |
514 | ||
515 | r = journal_file_find_data_object_with_hash(f, m->data, m->size, hash, NULL, &dp); | |
de190aef LP |
516 | if (r <= 0) |
517 | return r; | |
518 | ||
cbdca852 | 519 | return journal_file_move_to_entry_by_offset_for_data(f, dp, after_offset, direction, ret, offset); |
de190aef | 520 | |
cbdca852 LP |
521 | } else if (m->type == MATCH_OR_TERM) { |
522 | Match *i; | |
de7b95cd | 523 | |
cbdca852 | 524 | /* Find the earliest match beyond after_offset */ |
de190aef | 525 | |
cbdca852 LP |
526 | LIST_FOREACH(matches, i, m->matches) { |
527 | uint64_t cp; | |
de190aef | 528 | |
cbdca852 | 529 | r = next_for_match(j, i, f, after_offset, direction, NULL, &cp); |
b4e5f920 LP |
530 | if (r < 0) |
531 | return r; | |
cbdca852 | 532 | else if (r > 0) { |
bc302926 | 533 | if (np == 0 || (direction == DIRECTION_DOWN ? cp < np : cp > np)) |
cbdca852 LP |
534 | np = cp; |
535 | } | |
536 | } | |
b4e5f920 | 537 | |
bc302926 ZJS |
538 | if (np == 0) |
539 | return 0; | |
540 | ||
cbdca852 | 541 | } else if (m->type == MATCH_AND_TERM) { |
2bc8ca0c | 542 | Match *i, *last_moved; |
de190aef | 543 | |
cbdca852 | 544 | /* Always jump to the next matching entry and repeat |
2bc8ca0c | 545 | * this until we find an offset that matches for all |
cbdca852 | 546 | * matches. */ |
de190aef | 547 | |
cbdca852 LP |
548 | if (!m->matches) |
549 | return 0; | |
de7b95cd | 550 | |
2bc8ca0c ZJS |
551 | r = next_for_match(j, m->matches, f, after_offset, direction, NULL, &np); |
552 | if (r <= 0) | |
553 | return r; | |
de190aef | 554 | |
2bc8ca0c ZJS |
555 | assert(direction == DIRECTION_DOWN ? np >= after_offset : np <= after_offset); |
556 | last_moved = m->matches; | |
de190aef | 557 | |
2bc8ca0c ZJS |
558 | LIST_LOOP_BUT_ONE(matches, i, m->matches, last_moved) { |
559 | uint64_t cp; | |
de190aef | 560 | |
2bc8ca0c ZJS |
561 | r = next_for_match(j, i, f, np, direction, NULL, &cp); |
562 | if (r <= 0) | |
563 | return r; | |
de190aef | 564 | |
2bc8ca0c ZJS |
565 | assert(direction == DIRECTION_DOWN ? cp >= np : cp <= np); |
566 | if (direction == DIRECTION_DOWN ? cp > np : cp < np) { | |
567 | np = cp; | |
568 | last_moved = i; | |
de190aef | 569 | } |
2bc8ca0c | 570 | } |
cbdca852 | 571 | } |
de190aef | 572 | |
bc302926 | 573 | assert(np > 0); |
de190aef | 574 | |
cbdca852 LP |
575 | r = journal_file_move_to_object(f, OBJECT_ENTRY, np, &n); |
576 | if (r < 0) | |
577 | return r; | |
de7b95cd | 578 | |
de190aef | 579 | if (ret) |
cbdca852 | 580 | *ret = n; |
de190aef | 581 | if (offset) |
cbdca852 | 582 | *offset = np; |
de190aef LP |
583 | |
584 | return 1; | |
585 | } | |
586 | ||
cbdca852 LP |
587 | static int find_location_for_match( |
588 | sd_journal *j, | |
589 | Match *m, | |
590 | JournalFile *f, | |
591 | direction_t direction, | |
592 | Object **ret, | |
593 | uint64_t *offset) { | |
594 | ||
de190aef | 595 | int r; |
de190aef LP |
596 | |
597 | assert(j); | |
cbdca852 | 598 | assert(m); |
de190aef | 599 | assert(f); |
de190aef | 600 | |
cbdca852 | 601 | if (m->type == MATCH_DISCRETE) { |
4ce534f4 LP |
602 | uint64_t dp, hash; |
603 | ||
604 | if (JOURNAL_HEADER_KEYED_HASH(f->header)) | |
605 | hash = journal_file_hash_data(f, m->data, m->size); | |
606 | else | |
607 | hash = m->hash; | |
de190aef | 608 | |
4ce534f4 | 609 | r = journal_file_find_data_object_with_hash(f, m->data, m->size, hash, NULL, &dp); |
de7b95cd LP |
610 | if (r <= 0) |
611 | return r; | |
612 | ||
cbdca852 | 613 | /* FIXME: missing: find by monotonic */ |
de7b95cd | 614 | |
cbdca852 LP |
615 | if (j->current_location.type == LOCATION_HEAD) |
616 | return journal_file_next_entry_for_data(f, NULL, 0, dp, DIRECTION_DOWN, ret, offset); | |
617 | if (j->current_location.type == LOCATION_TAIL) | |
618 | return journal_file_next_entry_for_data(f, NULL, 0, dp, DIRECTION_UP, ret, offset); | |
619 | if (j->current_location.seqnum_set && sd_id128_equal(j->current_location.seqnum_id, f->header->seqnum_id)) | |
620 | return journal_file_move_to_entry_by_seqnum_for_data(f, dp, j->current_location.seqnum, direction, ret, offset); | |
621 | if (j->current_location.monotonic_set) { | |
622 | r = journal_file_move_to_entry_by_monotonic_for_data(f, dp, j->current_location.boot_id, j->current_location.monotonic, direction, ret, offset); | |
623 | if (r != -ENOENT) | |
624 | return r; | |
625 | } | |
626 | if (j->current_location.realtime_set) | |
627 | return journal_file_move_to_entry_by_realtime_for_data(f, dp, j->current_location.realtime, direction, ret, offset); | |
de190aef | 628 | |
cbdca852 | 629 | return journal_file_next_entry_for_data(f, NULL, 0, dp, direction, ret, offset); |
de7b95cd | 630 | |
cbdca852 LP |
631 | } else if (m->type == MATCH_OR_TERM) { |
632 | uint64_t np = 0; | |
633 | Object *n; | |
634 | Match *i; | |
de7b95cd | 635 | |
cbdca852 | 636 | /* Find the earliest match */ |
de7b95cd | 637 | |
cbdca852 LP |
638 | LIST_FOREACH(matches, i, m->matches) { |
639 | uint64_t cp; | |
640 | ||
641 | r = find_location_for_match(j, i, f, direction, NULL, &cp); | |
642 | if (r < 0) | |
643 | return r; | |
644 | else if (r > 0) { | |
645 | if (np == 0 || (direction == DIRECTION_DOWN ? np > cp : np < cp)) | |
646 | np = cp; | |
de190aef | 647 | } |
cbdca852 | 648 | } |
de190aef | 649 | |
cbdca852 LP |
650 | if (np == 0) |
651 | return 0; | |
de7b95cd | 652 | |
cbdca852 LP |
653 | r = journal_file_move_to_object(f, OBJECT_ENTRY, np, &n); |
654 | if (r < 0) | |
655 | return r; | |
de7b95cd | 656 | |
cbdca852 LP |
657 | if (ret) |
658 | *ret = n; | |
659 | if (offset) | |
660 | *offset = np; | |
de190aef | 661 | |
cbdca852 | 662 | return 1; |
e892bd17 | 663 | |
cbdca852 LP |
664 | } else { |
665 | Match *i; | |
666 | uint64_t np = 0; | |
667 | ||
668 | assert(m->type == MATCH_AND_TERM); | |
669 | ||
670 | /* First jump to the last match, and then find the | |
671 | * next one where all matches match */ | |
672 | ||
673 | if (!m->matches) | |
674 | return 0; | |
675 | ||
676 | LIST_FOREACH(matches, i, m->matches) { | |
677 | uint64_t cp; | |
678 | ||
679 | r = find_location_for_match(j, i, f, direction, NULL, &cp); | |
680 | if (r <= 0) | |
4b067dc9 LP |
681 | return r; |
682 | ||
bc302926 | 683 | if (np == 0 || (direction == DIRECTION_DOWN ? cp > np : cp < np)) |
cbdca852 | 684 | np = cp; |
de7b95cd LP |
685 | } |
686 | ||
cbdca852 LP |
687 | return next_for_match(j, m, f, np, direction, ret, offset); |
688 | } | |
689 | } | |
de190aef | 690 | |
cbdca852 LP |
691 | static int find_location_with_matches( |
692 | sd_journal *j, | |
693 | JournalFile *f, | |
694 | direction_t direction, | |
695 | Object **ret, | |
696 | uint64_t *offset) { | |
697 | ||
698 | int r; | |
699 | ||
700 | assert(j); | |
701 | assert(f); | |
702 | assert(ret); | |
703 | assert(offset); | |
704 | ||
705 | if (!j->level0) { | |
706 | /* No matches is simple */ | |
707 | ||
708 | if (j->current_location.type == LOCATION_HEAD) | |
f534928a | 709 | return journal_file_next_entry(f, 0, DIRECTION_DOWN, ret, offset); |
cbdca852 | 710 | if (j->current_location.type == LOCATION_TAIL) |
f534928a | 711 | return journal_file_next_entry(f, 0, DIRECTION_UP, ret, offset); |
cbdca852 LP |
712 | if (j->current_location.seqnum_set && sd_id128_equal(j->current_location.seqnum_id, f->header->seqnum_id)) |
713 | return journal_file_move_to_entry_by_seqnum(f, j->current_location.seqnum, direction, ret, offset); | |
714 | if (j->current_location.monotonic_set) { | |
715 | r = journal_file_move_to_entry_by_monotonic(f, j->current_location.boot_id, j->current_location.monotonic, direction, ret, offset); | |
716 | if (r != -ENOENT) | |
717 | return r; | |
de7b95cd | 718 | } |
cbdca852 LP |
719 | if (j->current_location.realtime_set) |
720 | return journal_file_move_to_entry_by_realtime(f, j->current_location.realtime, direction, ret, offset); | |
de7b95cd | 721 | |
f534928a | 722 | return journal_file_next_entry(f, 0, direction, ret, offset); |
cbdca852 LP |
723 | } else |
724 | return find_location_for_match(j, j->level0, f, direction, ret, offset); | |
725 | } | |
de7b95cd | 726 | |
cbdca852 LP |
727 | static int next_with_matches( |
728 | sd_journal *j, | |
729 | JournalFile *f, | |
730 | direction_t direction, | |
731 | Object **ret, | |
732 | uint64_t *offset) { | |
733 | ||
cbdca852 LP |
734 | assert(j); |
735 | assert(f); | |
736 | assert(ret); | |
737 | assert(offset); | |
738 | ||
cbdca852 LP |
739 | /* No matches is easy. We simple advance the file |
740 | * pointer by one. */ | |
741 | if (!j->level0) | |
b29ddfcb | 742 | return journal_file_next_entry(f, f->current_offset, direction, ret, offset); |
cbdca852 LP |
743 | |
744 | /* If we have a match then we look for the next matching entry | |
49f43d5f | 745 | * with an offset at least one step larger */ |
b29ddfcb MS |
746 | return next_for_match(j, j->level0, f, |
747 | direction == DIRECTION_DOWN ? f->current_offset + 1 | |
748 | : f->current_offset - 1, | |
749 | direction, ret, offset); | |
de7b95cd LP |
750 | } |
751 | ||
58439db4 | 752 | static int next_beyond_location(sd_journal *j, JournalFile *f, direction_t direction) { |
de190aef | 753 | Object *c; |
6e693b42 | 754 | uint64_t cp, n_entries; |
cbdca852 | 755 | int r; |
de190aef LP |
756 | |
757 | assert(j); | |
758 | assert(f); | |
759 | ||
950c07d4 MS |
760 | n_entries = le64toh(f->header->n_entries); |
761 | ||
762 | /* If we hit EOF before, we don't need to look into this file again | |
763 | * unless direction changed or new entries appeared. */ | |
764 | if (f->last_direction == direction && f->location_type == LOCATION_TAIL && | |
765 | n_entries == f->last_n_entries) | |
766 | return 0; | |
668c965a | 767 | |
950c07d4 MS |
768 | f->last_n_entries = n_entries; |
769 | ||
770 | if (f->last_direction == direction && f->current_offset > 0) { | |
7943f422 MS |
771 | /* LOCATION_SEEK here means we did the work in a previous |
772 | * iteration and the current location already points to a | |
773 | * candidate entry. */ | |
487d3720 MS |
774 | if (f->location_type != LOCATION_SEEK) { |
775 | r = next_with_matches(j, f, direction, &c, &cp); | |
776 | if (r <= 0) | |
777 | return r; | |
466ccd92 | 778 | |
950c07d4 | 779 | journal_file_save_location(f, c, cp); |
487d3720 | 780 | } |
de190aef | 781 | } else { |
950c07d4 MS |
782 | f->last_direction = direction; |
783 | ||
cbdca852 | 784 | r = find_location_with_matches(j, f, direction, &c, &cp); |
de190aef LP |
785 | if (r <= 0) |
786 | return r; | |
487d3720 | 787 | |
950c07d4 | 788 | journal_file_save_location(f, c, cp); |
de190aef LP |
789 | } |
790 | ||
bc302926 | 791 | /* OK, we found the spot, now let's advance until an entry |
cbdca852 LP |
792 | * that is actually different from what we were previously |
793 | * looking at. This is necessary to handle entries which exist | |
794 | * in two (or more) journal files, and which shall all be | |
795 | * suppressed but one. */ | |
796 | ||
de190aef LP |
797 | for (;;) { |
798 | bool found; | |
799 | ||
800 | if (j->current_location.type == LOCATION_DISCRETE) { | |
801 | int k; | |
802 | ||
b6849042 | 803 | k = compare_with_location(f, &j->current_location, j->current_file); |
1cdf7175 CH |
804 | |
805 | found = direction == DIRECTION_DOWN ? k > 0 : k < 0; | |
de190aef LP |
806 | } else |
807 | found = true; | |
808 | ||
487d3720 | 809 | if (found) |
de190aef | 810 | return 1; |
de190aef LP |
811 | |
812 | r = next_with_matches(j, f, direction, &c, &cp); | |
813 | if (r <= 0) | |
814 | return r; | |
487d3720 | 815 | |
950c07d4 | 816 | journal_file_save_location(f, c, cp); |
de190aef LP |
817 | } |
818 | } | |
819 | ||
e892bd17 | 820 | static int real_journal_next(sd_journal *j, direction_t direction) { |
5d4ba7f2 VC |
821 | JournalFile *new_file = NULL; |
822 | unsigned i, n_files; | |
823 | const void **files; | |
a002d44b | 824 | Object *o; |
87d2c1ff LP |
825 | int r; |
826 | ||
1ae464e0 TA |
827 | assert_return(j, -EINVAL); |
828 | assert_return(!journal_pid_changed(j), -ECHILD); | |
87d2c1ff | 829 | |
5d4ba7f2 VC |
830 | r = iterated_cache_get(j->files_cache, NULL, &files, &n_files); |
831 | if (r < 0) | |
832 | return r; | |
833 | ||
834 | for (i = 0; i < n_files; i++) { | |
835 | JournalFile *f = (JournalFile *)files[i]; | |
de190aef | 836 | bool found; |
87d2c1ff | 837 | |
58439db4 | 838 | r = next_beyond_location(j, f, direction); |
e590af26 | 839 | if (r < 0) { |
da927ba9 | 840 | log_debug_errno(r, "Can't iterate through %s, ignoring: %m", f->path); |
a9a245c1 | 841 | remove_file_real(j, f); |
e590af26 | 842 | continue; |
6573ef05 MS |
843 | } else if (r == 0) { |
844 | f->location_type = LOCATION_TAIL; | |
cec736d2 | 845 | continue; |
6573ef05 | 846 | } |
87d2c1ff | 847 | |
468b21de | 848 | if (!new_file) |
de190aef LP |
849 | found = true; |
850 | else { | |
851 | int k; | |
852 | ||
d8ae66d7 | 853 | k = journal_file_compare_locations(f, new_file); |
de190aef | 854 | |
bc302926 | 855 | found = direction == DIRECTION_DOWN ? k < 0 : k > 0; |
de190aef LP |
856 | } |
857 | ||
e499c999 | 858 | if (found) |
468b21de | 859 | new_file = f; |
87d2c1ff LP |
860 | } |
861 | ||
468b21de | 862 | if (!new_file) |
de190aef | 863 | return 0; |
ae2cc8ef | 864 | |
e499c999 | 865 | r = journal_file_move_to_object(new_file, OBJECT_ENTRY, new_file->current_offset, &o); |
468b21de LP |
866 | if (r < 0) |
867 | return r; | |
868 | ||
1eb6332d | 869 | set_location(j, new_file, o); |
ae2cc8ef | 870 | |
de190aef LP |
871 | return 1; |
872 | } | |
ae2cc8ef | 873 | |
a5344d2c | 874 | _public_ int sd_journal_next(sd_journal *j) { |
de190aef LP |
875 | return real_journal_next(j, DIRECTION_DOWN); |
876 | } | |
ae2cc8ef | 877 | |
a5344d2c | 878 | _public_ int sd_journal_previous(sd_journal *j) { |
de190aef LP |
879 | return real_journal_next(j, DIRECTION_UP); |
880 | } | |
ae2cc8ef | 881 | |
6f003b43 | 882 | static int real_journal_next_skip(sd_journal *j, direction_t direction, uint64_t skip) { |
de190aef | 883 | int c = 0, r; |
ae2cc8ef | 884 | |
1ae464e0 TA |
885 | assert_return(j, -EINVAL); |
886 | assert_return(!journal_pid_changed(j), -ECHILD); | |
de190aef | 887 | |
6f003b43 LP |
888 | if (skip == 0) { |
889 | /* If this is not a discrete skip, then at least | |
890 | * resolve the current location */ | |
04884354 LK |
891 | if (j->current_location.type != LOCATION_DISCRETE) { |
892 | r = real_journal_next(j, direction); | |
893 | if (r < 0) | |
894 | return r; | |
895 | } | |
6f003b43 LP |
896 | |
897 | return 0; | |
898 | } | |
899 | ||
900 | do { | |
901 | r = real_journal_next(j, direction); | |
de190aef LP |
902 | if (r < 0) |
903 | return r; | |
904 | ||
905 | if (r == 0) | |
906 | return c; | |
907 | ||
908 | skip--; | |
909 | c++; | |
6f003b43 | 910 | } while (skip > 0); |
87d2c1ff | 911 | |
de190aef | 912 | return c; |
87d2c1ff LP |
913 | } |
914 | ||
6f003b43 LP |
915 | _public_ int sd_journal_next_skip(sd_journal *j, uint64_t skip) { |
916 | return real_journal_next_skip(j, DIRECTION_DOWN, skip); | |
917 | } | |
de190aef | 918 | |
6f003b43 LP |
919 | _public_ int sd_journal_previous_skip(sd_journal *j, uint64_t skip) { |
920 | return real_journal_next_skip(j, DIRECTION_UP, skip); | |
87d2c1ff LP |
921 | } |
922 | ||
a5344d2c | 923 | _public_ int sd_journal_get_cursor(sd_journal *j, char **cursor) { |
cec736d2 | 924 | Object *o; |
87d2c1ff | 925 | int r; |
5905d7cf | 926 | char bid[SD_ID128_STRING_MAX], sid[SD_ID128_STRING_MAX]; |
87d2c1ff | 927 | |
1ae464e0 TA |
928 | assert_return(j, -EINVAL); |
929 | assert_return(!journal_pid_changed(j), -ECHILD); | |
930 | assert_return(cursor, -EINVAL); | |
87d2c1ff | 931 | |
3fbf9cbb LP |
932 | if (!j->current_file || j->current_file->current_offset <= 0) |
933 | return -EADDRNOTAVAIL; | |
87d2c1ff | 934 | |
de190aef | 935 | r = journal_file_move_to_object(j->current_file, OBJECT_ENTRY, j->current_file->current_offset, &o); |
87d2c1ff LP |
936 | if (r < 0) |
937 | return r; | |
938 | ||
3fbf9cbb LP |
939 | sd_id128_to_string(j->current_file->header->seqnum_id, sid); |
940 | sd_id128_to_string(o->entry.boot_id, bid); | |
87d2c1ff | 941 | |
3fbf9cbb | 942 | if (asprintf(cursor, |
507f22bd ZJS |
943 | "s=%s;i=%"PRIx64";b=%s;m=%"PRIx64";t=%"PRIx64";x=%"PRIx64, |
944 | sid, le64toh(o->entry.seqnum), | |
945 | bid, le64toh(o->entry.monotonic), | |
946 | le64toh(o->entry.realtime), | |
947 | le64toh(o->entry.xor_hash)) < 0) | |
3fbf9cbb | 948 | return -ENOMEM; |
87d2c1ff | 949 | |
6f47ad30 | 950 | return 0; |
87d2c1ff LP |
951 | } |
952 | ||
a5344d2c | 953 | _public_ int sd_journal_seek_cursor(sd_journal *j, const char *cursor) { |
a2a5291b | 954 | const char *word, *state; |
de190aef | 955 | size_t l; |
de190aef LP |
956 | unsigned long long seqnum, monotonic, realtime, xor_hash; |
957 | bool | |
958 | seqnum_id_set = false, | |
959 | seqnum_set = false, | |
960 | boot_id_set = false, | |
961 | monotonic_set = false, | |
962 | realtime_set = false, | |
963 | xor_hash_set = false; | |
964 | sd_id128_t seqnum_id, boot_id; | |
965 | ||
1ae464e0 TA |
966 | assert_return(j, -EINVAL); |
967 | assert_return(!journal_pid_changed(j), -ECHILD); | |
968 | assert_return(!isempty(cursor), -EINVAL); | |
de190aef | 969 | |
a2a5291b | 970 | FOREACH_WORD_SEPARATOR(word, l, cursor, ";", state) { |
de190aef LP |
971 | char *item; |
972 | int k = 0; | |
973 | ||
a2a5291b | 974 | if (l < 2 || word[1] != '=') |
de190aef LP |
975 | return -EINVAL; |
976 | ||
a2a5291b | 977 | item = strndup(word, l); |
de190aef LP |
978 | if (!item) |
979 | return -ENOMEM; | |
980 | ||
a2a5291b | 981 | switch (word[0]) { |
de190aef LP |
982 | |
983 | case 's': | |
984 | seqnum_id_set = true; | |
be3ea5ea | 985 | k = sd_id128_from_string(item+2, &seqnum_id); |
de190aef LP |
986 | break; |
987 | ||
988 | case 'i': | |
989 | seqnum_set = true; | |
be3ea5ea | 990 | if (sscanf(item+2, "%llx", &seqnum) != 1) |
de190aef LP |
991 | k = -EINVAL; |
992 | break; | |
993 | ||
994 | case 'b': | |
995 | boot_id_set = true; | |
be3ea5ea | 996 | k = sd_id128_from_string(item+2, &boot_id); |
de190aef LP |
997 | break; |
998 | ||
999 | case 'm': | |
1000 | monotonic_set = true; | |
be3ea5ea | 1001 | if (sscanf(item+2, "%llx", &monotonic) != 1) |
de190aef LP |
1002 | k = -EINVAL; |
1003 | break; | |
1004 | ||
1005 | case 't': | |
1006 | realtime_set = true; | |
be3ea5ea | 1007 | if (sscanf(item+2, "%llx", &realtime) != 1) |
de190aef LP |
1008 | k = -EINVAL; |
1009 | break; | |
1010 | ||
1011 | case 'x': | |
1012 | xor_hash_set = true; | |
be3ea5ea | 1013 | if (sscanf(item+2, "%llx", &xor_hash) != 1) |
de190aef LP |
1014 | k = -EINVAL; |
1015 | break; | |
1016 | } | |
1017 | ||
1018 | free(item); | |
1019 | ||
1020 | if (k < 0) | |
1021 | return k; | |
1022 | } | |
1023 | ||
1024 | if ((!seqnum_set || !seqnum_id_set) && | |
1025 | (!monotonic_set || !boot_id_set) && | |
1026 | !realtime_set) | |
1027 | return -EINVAL; | |
1028 | ||
bba6e4ae LP |
1029 | detach_location(j); |
1030 | j->current_location = (Location) { | |
1031 | .type = LOCATION_SEEK, | |
1032 | }; | |
de190aef LP |
1033 | |
1034 | if (realtime_set) { | |
1035 | j->current_location.realtime = (uint64_t) realtime; | |
1036 | j->current_location.realtime_set = true; | |
1037 | } | |
1038 | ||
1039 | if (seqnum_set && seqnum_id_set) { | |
1040 | j->current_location.seqnum = (uint64_t) seqnum; | |
1041 | j->current_location.seqnum_id = seqnum_id; | |
1042 | j->current_location.seqnum_set = true; | |
1043 | } | |
1044 | ||
1045 | if (monotonic_set && boot_id_set) { | |
1046 | j->current_location.monotonic = (uint64_t) monotonic; | |
1047 | j->current_location.boot_id = boot_id; | |
1048 | j->current_location.monotonic_set = true; | |
1049 | } | |
1050 | ||
1051 | if (xor_hash_set) { | |
1052 | j->current_location.xor_hash = (uint64_t) xor_hash; | |
1053 | j->current_location.xor_hash_set = true; | |
1054 | } | |
1055 | ||
1056 | return 0; | |
1057 | } | |
1058 | ||
c6511e85 LP |
1059 | _public_ int sd_journal_test_cursor(sd_journal *j, const char *cursor) { |
1060 | int r; | |
c6511e85 LP |
1061 | Object *o; |
1062 | ||
1ae464e0 TA |
1063 | assert_return(j, -EINVAL); |
1064 | assert_return(!journal_pid_changed(j), -ECHILD); | |
1065 | assert_return(!isempty(cursor), -EINVAL); | |
c6511e85 LP |
1066 | |
1067 | if (!j->current_file || j->current_file->current_offset <= 0) | |
1068 | return -EADDRNOTAVAIL; | |
1069 | ||
1070 | r = journal_file_move_to_object(j->current_file, OBJECT_ENTRY, j->current_file->current_offset, &o); | |
1071 | if (r < 0) | |
1072 | return r; | |
1073 | ||
9ed794a3 | 1074 | for (;;) { |
c6511e85 | 1075 | _cleanup_free_ char *item = NULL; |
c6511e85 | 1076 | unsigned long long ll; |
7294bb5b | 1077 | sd_id128_t id; |
c6511e85 LP |
1078 | int k = 0; |
1079 | ||
7294bb5b SS |
1080 | r = extract_first_word(&cursor, &item, ";", EXTRACT_DONT_COALESCE_SEPARATORS); |
1081 | if (r < 0) | |
1082 | return r; | |
c6511e85 | 1083 | |
7294bb5b SS |
1084 | if (r == 0) |
1085 | break; | |
c6511e85 | 1086 | |
7294bb5b SS |
1087 | if (strlen(item) < 2 || item[1] != '=') |
1088 | return -EINVAL; | |
1089 | ||
1090 | switch (item[0]) { | |
c6511e85 LP |
1091 | |
1092 | case 's': | |
1093 | k = sd_id128_from_string(item+2, &id); | |
1094 | if (k < 0) | |
1095 | return k; | |
1096 | if (!sd_id128_equal(id, j->current_file->header->seqnum_id)) | |
1097 | return 0; | |
1098 | break; | |
1099 | ||
1100 | case 'i': | |
1101 | if (sscanf(item+2, "%llx", &ll) != 1) | |
1102 | return -EINVAL; | |
1103 | if (ll != le64toh(o->entry.seqnum)) | |
1104 | return 0; | |
1105 | break; | |
1106 | ||
1107 | case 'b': | |
1108 | k = sd_id128_from_string(item+2, &id); | |
1109 | if (k < 0) | |
1110 | return k; | |
1111 | if (!sd_id128_equal(id, o->entry.boot_id)) | |
1112 | return 0; | |
1113 | break; | |
1114 | ||
1115 | case 'm': | |
1116 | if (sscanf(item+2, "%llx", &ll) != 1) | |
1117 | return -EINVAL; | |
1118 | if (ll != le64toh(o->entry.monotonic)) | |
1119 | return 0; | |
1120 | break; | |
1121 | ||
1122 | case 't': | |
1123 | if (sscanf(item+2, "%llx", &ll) != 1) | |
1124 | return -EINVAL; | |
1125 | if (ll != le64toh(o->entry.realtime)) | |
1126 | return 0; | |
1127 | break; | |
1128 | ||
1129 | case 'x': | |
1130 | if (sscanf(item+2, "%llx", &ll) != 1) | |
1131 | return -EINVAL; | |
1132 | if (ll != le64toh(o->entry.xor_hash)) | |
1133 | return 0; | |
1134 | break; | |
1135 | } | |
1136 | } | |
1137 | ||
1138 | return 1; | |
1139 | } | |
1140 | ||
a5344d2c | 1141 | _public_ int sd_journal_seek_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t usec) { |
1ae464e0 TA |
1142 | assert_return(j, -EINVAL); |
1143 | assert_return(!journal_pid_changed(j), -ECHILD); | |
de190aef | 1144 | |
bba6e4ae LP |
1145 | detach_location(j); |
1146 | ||
1147 | j->current_location = (Location) { | |
1148 | .type = LOCATION_SEEK, | |
1149 | .boot_id = boot_id, | |
1150 | .monotonic = usec, | |
1151 | .monotonic_set = true, | |
1152 | }; | |
de190aef LP |
1153 | |
1154 | return 0; | |
1155 | } | |
1156 | ||
a5344d2c | 1157 | _public_ int sd_journal_seek_realtime_usec(sd_journal *j, uint64_t usec) { |
1ae464e0 TA |
1158 | assert_return(j, -EINVAL); |
1159 | assert_return(!journal_pid_changed(j), -ECHILD); | |
de190aef | 1160 | |
bba6e4ae LP |
1161 | detach_location(j); |
1162 | ||
1163 | j->current_location = (Location) { | |
1164 | .type = LOCATION_SEEK, | |
1165 | .realtime = usec, | |
1166 | .realtime_set = true, | |
1167 | }; | |
de190aef LP |
1168 | |
1169 | return 0; | |
1170 | } | |
1171 | ||
a5344d2c | 1172 | _public_ int sd_journal_seek_head(sd_journal *j) { |
1ae464e0 TA |
1173 | assert_return(j, -EINVAL); |
1174 | assert_return(!journal_pid_changed(j), -ECHILD); | |
de190aef | 1175 | |
bba6e4ae LP |
1176 | detach_location(j); |
1177 | ||
1178 | j->current_location = (Location) { | |
1179 | .type = LOCATION_HEAD, | |
1180 | }; | |
de190aef LP |
1181 | |
1182 | return 0; | |
1183 | } | |
1184 | ||
a5344d2c | 1185 | _public_ int sd_journal_seek_tail(sd_journal *j) { |
1ae464e0 TA |
1186 | assert_return(j, -EINVAL); |
1187 | assert_return(!journal_pid_changed(j), -ECHILD); | |
de190aef | 1188 | |
bba6e4ae LP |
1189 | detach_location(j); |
1190 | ||
1191 | j->current_location = (Location) { | |
1192 | .type = LOCATION_TAIL, | |
1193 | }; | |
de190aef LP |
1194 | |
1195 | return 0; | |
87d2c1ff LP |
1196 | } |
1197 | ||
85210bff | 1198 | static void check_network(sd_journal *j, int fd) { |
85210bff LP |
1199 | assert(j); |
1200 | ||
1201 | if (j->on_network) | |
1202 | return; | |
1203 | ||
77f9fa3b | 1204 | j->on_network = fd_is_network_fs(fd); |
85210bff LP |
1205 | } |
1206 | ||
a688baa8 ZJS |
1207 | static bool file_has_type_prefix(const char *prefix, const char *filename) { |
1208 | const char *full, *tilded, *atted; | |
1209 | ||
63c372cb LP |
1210 | full = strjoina(prefix, ".journal"); |
1211 | tilded = strjoina(full, "~"); | |
1212 | atted = strjoina(prefix, "@"); | |
a688baa8 | 1213 | |
0cbd293e | 1214 | return STR_IN_SET(filename, full, tilded) || |
a688baa8 ZJS |
1215 | startswith(filename, atted); |
1216 | } | |
1217 | ||
1218 | static bool file_type_wanted(int flags, const char *filename) { | |
d617408e LP |
1219 | assert(filename); |
1220 | ||
a688baa8 ZJS |
1221 | if (!endswith(filename, ".journal") && !endswith(filename, ".journal~")) |
1222 | return false; | |
1223 | ||
1224 | /* no flags set → every type is OK */ | |
1225 | if (!(flags & (SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER))) | |
1226 | return true; | |
1227 | ||
1228 | if (flags & SD_JOURNAL_SYSTEM && file_has_type_prefix("system", filename)) | |
1229 | return true; | |
1230 | ||
1231 | if (flags & SD_JOURNAL_CURRENT_USER) { | |
1232 | char prefix[5 + DECIMAL_STR_MAX(uid_t) + 1]; | |
1233 | ||
5ffa8c81 | 1234 | xsprintf(prefix, "user-"UID_FMT, getuid()); |
a688baa8 ZJS |
1235 | |
1236 | if (file_has_type_prefix(prefix, filename)) | |
1237 | return true; | |
1238 | } | |
1239 | ||
1240 | return false; | |
1241 | } | |
1242 | ||
5d1ce257 LP |
1243 | static bool path_has_prefix(sd_journal *j, const char *path, const char *prefix) { |
1244 | assert(j); | |
1245 | assert(path); | |
1246 | assert(prefix); | |
1247 | ||
1248 | if (j->toplevel_fd >= 0) | |
1249 | return false; | |
1250 | ||
1251 | return path_startswith(path, prefix); | |
1252 | } | |
1253 | ||
9c66f528 LP |
1254 | static void track_file_disposition(sd_journal *j, JournalFile *f) { |
1255 | assert(j); | |
1256 | assert(f); | |
1257 | ||
1258 | if (!j->has_runtime_files && path_has_prefix(j, f->path, "/run")) | |
1259 | j->has_runtime_files = true; | |
1260 | else if (!j->has_persistent_files && path_has_prefix(j, f->path, "/var")) | |
1261 | j->has_persistent_files = true; | |
1262 | } | |
1263 | ||
5d1ce257 LP |
1264 | static const char *skip_slash(const char *p) { |
1265 | ||
1266 | if (!p) | |
1267 | return NULL; | |
1268 | ||
1269 | while (*p == '/') | |
1270 | p++; | |
1271 | ||
1272 | return p; | |
1273 | } | |
1274 | ||
9c66f528 LP |
1275 | static int add_any_file( |
1276 | sd_journal *j, | |
1277 | int fd, | |
1278 | const char *path) { | |
1279 | ||
5d1ce257 | 1280 | bool close_fd = false; |
9c66f528 LP |
1281 | JournalFile *f; |
1282 | struct stat st; | |
d617408e | 1283 | int r, k; |
3fbf9cbb LP |
1284 | |
1285 | assert(j); | |
5d1ce257 | 1286 | assert(fd >= 0 || path); |
3fbf9cbb | 1287 | |
9c66f528 LP |
1288 | if (fd < 0) { |
1289 | if (j->toplevel_fd >= 0) | |
1290 | /* If there's a top-level fd defined make the path relative, explicitly, since otherwise | |
1291 | * openat() ignores the first argument. */ | |
1292 | ||
1293 | fd = openat(j->toplevel_fd, skip_slash(path), O_RDONLY|O_CLOEXEC|O_NONBLOCK); | |
1294 | else | |
1295 | fd = open(path, O_RDONLY|O_CLOEXEC|O_NONBLOCK); | |
1296 | if (fd < 0) { | |
1297 | r = log_debug_errno(errno, "Failed to open journal file %s: %m", path); | |
1298 | goto finish; | |
1299 | } | |
1300 | ||
1301 | close_fd = true; | |
1302 | ||
1303 | r = fd_nonblock(fd, false); | |
1304 | if (r < 0) { | |
1305 | r = log_debug_errno(errno, "Failed to turn off O_NONBLOCK for %s: %m", path); | |
1306 | goto finish; | |
858749f7 LP |
1307 | } |
1308 | } | |
50f20cfd | 1309 | |
9c66f528 LP |
1310 | if (fstat(fd, &st) < 0) { |
1311 | r = log_debug_errno(errno, "Failed to fstat file '%s': %m", path); | |
1312 | goto finish; | |
1313 | } | |
3cc44114 LP |
1314 | |
1315 | r = stat_verify_regular(&st); | |
1316 | if (r < 0) { | |
1317 | log_debug_errno(r, "Refusing to open '%s', as it is not a regular file.", path); | |
9c66f528 | 1318 | goto finish; |
9e8abdf0 LP |
1319 | } |
1320 | ||
9c66f528 LP |
1321 | f = ordered_hashmap_get(j->files, path); |
1322 | if (f) { | |
1323 | if (f->last_stat.st_dev == st.st_dev && | |
1324 | f->last_stat.st_ino == st.st_ino) { | |
5d1ce257 | 1325 | |
9c66f528 LP |
1326 | /* We already track this file, under the same path and with the same device/inode numbers, it's |
1327 | * hence really the same. Mark this file as seen in this generation. This is used to GC old | |
1328 | * files in process_q_overflow() to detect journal files that are still there and discern them | |
1329 | * from those which are gone. */ | |
5d1ce257 | 1330 | |
9c66f528 LP |
1331 | f->last_seen_generation = j->generation; |
1332 | r = 0; | |
1333 | goto finish; | |
5d1ce257 LP |
1334 | } |
1335 | ||
9c66f528 LP |
1336 | /* So we tracked a file under this name, but it has a different inode/device. In that case, it got |
1337 | * replaced (probably due to rotation?), let's drop it hence from our list. */ | |
1338 | remove_file_real(j, f); | |
1339 | f = NULL; | |
1340 | } | |
1341 | ||
1342 | if (ordered_hashmap_size(j->files) >= JOURNAL_FILES_MAX) { | |
1343 | log_debug("Too many open journal files, not adding %s.", path); | |
1344 | r = -ETOOMANYREFS; | |
1345 | goto finish; | |
5d1ce257 LP |
1346 | } |
1347 | ||
57850536 | 1348 | r = journal_file_open(fd, path, O_RDONLY, 0, false, 0, false, NULL, j->mmap, NULL, NULL, &f); |
d617408e LP |
1349 | if (r < 0) { |
1350 | log_debug_errno(r, "Failed to open journal file %s: %m", path); | |
9c66f528 | 1351 | goto finish; |
d617408e | 1352 | } |
3fbf9cbb | 1353 | |
72f59706 | 1354 | /* journal_file_dump(f); */ |
de190aef | 1355 | |
c1f906bd | 1356 | r = ordered_hashmap_put(j->files, f->path, f); |
3fbf9cbb | 1357 | if (r < 0) { |
9c66f528 | 1358 | f->close_fd = false; /* make sure journal_file_close() doesn't close the caller's fd (or our own). We'll let the caller do that, or ourselves */ |
69a3a6fd | 1359 | (void) journal_file_close(f); |
9c66f528 | 1360 | goto finish; |
3fbf9cbb LP |
1361 | } |
1362 | ||
9c66f528 | 1363 | close_fd = false; /* the fd is now owned by the JournalFile object */ |
5d1ce257 | 1364 | |
9c66f528 | 1365 | f->last_seen_generation = j->generation; |
a50d7d43 | 1366 | |
9c66f528 | 1367 | track_file_disposition(j, f); |
85210bff LP |
1368 | check_network(j, f->fd); |
1369 | ||
313cefa1 | 1370 | j->current_invalidate_counter++; |
a963990f | 1371 | |
9c66f528 | 1372 | log_debug("File %s added.", f->path); |
d617408e | 1373 | |
9c66f528 LP |
1374 | r = 0; |
1375 | ||
1376 | finish: | |
1377 | if (close_fd) | |
1378 | safe_close(fd); | |
1379 | ||
1380 | if (r < 0) { | |
1381 | k = journal_put_error(j, r, path); | |
1382 | if (k < 0) | |
1383 | return k; | |
1384 | } | |
d617408e LP |
1385 | |
1386 | return r; | |
50f20cfd LP |
1387 | } |
1388 | ||
fc1813c0 LP |
1389 | static int add_file_by_name( |
1390 | sd_journal *j, | |
1391 | const char *prefix, | |
1392 | const char *filename) { | |
1393 | ||
d617408e | 1394 | const char *path; |
5302ebe1 ZJS |
1395 | |
1396 | assert(j); | |
1397 | assert(prefix); | |
1398 | assert(filename); | |
1399 | ||
5d1ce257 | 1400 | if (j->no_new_files) |
5302ebe1 ZJS |
1401 | return 0; |
1402 | ||
5d1ce257 LP |
1403 | if (!file_type_wanted(j->flags, filename)) |
1404 | return 0; | |
39fd5b08 | 1405 | |
270384b2 | 1406 | path = prefix_roota(prefix, filename); |
5d1ce257 | 1407 | return add_any_file(j, -1, path); |
5302ebe1 ZJS |
1408 | } |
1409 | ||
fc1813c0 LP |
1410 | static void remove_file_by_name( |
1411 | sd_journal *j, | |
1412 | const char *prefix, | |
1413 | const char *filename) { | |
1414 | ||
d617408e | 1415 | const char *path; |
50f20cfd LP |
1416 | JournalFile *f; |
1417 | ||
1418 | assert(j); | |
1419 | assert(prefix); | |
1420 | assert(filename); | |
1421 | ||
270384b2 | 1422 | path = prefix_roota(prefix, filename); |
c1f906bd | 1423 | f = ordered_hashmap_get(j->files, path); |
50f20cfd | 1424 | if (!f) |
d617408e | 1425 | return; |
50f20cfd | 1426 | |
a9a245c1 | 1427 | remove_file_real(j, f); |
a9a245c1 ZJS |
1428 | } |
1429 | ||
1430 | static void remove_file_real(sd_journal *j, JournalFile *f) { | |
1431 | assert(j); | |
1432 | assert(f); | |
1433 | ||
fc1813c0 | 1434 | (void) ordered_hashmap_remove(j->files, f->path); |
44a5fa34 | 1435 | |
5ec76417 | 1436 | log_debug("File %s removed.", f->path); |
44a5fa34 | 1437 | |
3c1668da LP |
1438 | if (j->current_file == f) { |
1439 | j->current_file = NULL; | |
1440 | j->current_field = 0; | |
1441 | } | |
1442 | ||
1443 | if (j->unique_file == f) { | |
360af4cf | 1444 | /* Jump to the next unique_file or NULL if that one was last */ |
c1f906bd | 1445 | j->unique_file = ordered_hashmap_next(j->files, j->unique_file->path); |
3c1668da | 1446 | j->unique_offset = 0; |
360af4cf ZJS |
1447 | if (!j->unique_file) |
1448 | j->unique_file_lost = true; | |
3c1668da LP |
1449 | } |
1450 | ||
eb86030e LP |
1451 | if (j->fields_file == f) { |
1452 | j->fields_file = ordered_hashmap_next(j->files, j->fields_file->path); | |
1453 | j->fields_offset = 0; | |
1454 | if (!j->fields_file) | |
1455 | j->fields_file_lost = true; | |
1456 | } | |
1457 | ||
69a3a6fd | 1458 | (void) journal_file_close(f); |
50f20cfd | 1459 | |
313cefa1 | 1460 | j->current_invalidate_counter++; |
3fbf9cbb LP |
1461 | } |
1462 | ||
d617408e LP |
1463 | static int dirname_is_machine_id(const char *fn) { |
1464 | sd_id128_t id, machine; | |
456aa879 | 1465 | const char *e; |
d617408e LP |
1466 | int r; |
1467 | ||
456aa879 LP |
1468 | /* Returns true if the specified directory name matches the local machine ID */ |
1469 | ||
d617408e LP |
1470 | r = sd_id128_get_machine(&machine); |
1471 | if (r < 0) | |
1472 | return r; | |
1473 | ||
456aa879 LP |
1474 | e = strchr(fn, '.'); |
1475 | if (e) { | |
1476 | const char *k; | |
1477 | ||
1478 | /* Looks like it has a namespace suffix. Verify that. */ | |
1479 | if (!log_namespace_name_valid(e + 1)) | |
1480 | return false; | |
1481 | ||
1482 | k = strndupa(fn, e - fn); | |
1483 | r = sd_id128_from_string(k, &id); | |
1484 | } else | |
1485 | r = sd_id128_from_string(fn, &id); | |
d617408e LP |
1486 | if (r < 0) |
1487 | return r; | |
1488 | ||
1489 | return sd_id128_equal(id, machine); | |
1490 | } | |
1491 | ||
456aa879 LP |
1492 | static int dirname_has_namespace(const char *fn, const char *namespace) { |
1493 | const char *e; | |
1494 | ||
1495 | /* Returns true if the specified directory name matches the specified namespace */ | |
1496 | ||
1497 | e = strchr(fn, '.'); | |
1498 | if (e) { | |
1499 | const char *k; | |
1500 | ||
1501 | if (!namespace) | |
1502 | return false; | |
1503 | ||
1504 | if (!streq(e + 1, namespace)) | |
1505 | return false; | |
1506 | ||
1507 | k = strndupa(fn, e - fn); | |
1508 | return id128_is_valid(k); | |
1509 | } | |
1510 | ||
1511 | if (namespace) | |
1512 | return false; | |
1513 | ||
1514 | return id128_is_valid(fn); | |
1515 | } | |
1516 | ||
858749f7 LP |
1517 | static bool dirent_is_journal_file(const struct dirent *de) { |
1518 | assert(de); | |
1519 | ||
456aa879 LP |
1520 | /* Returns true if the specified directory entry looks like a journal file we might be interested in */ |
1521 | ||
858749f7 LP |
1522 | if (!IN_SET(de->d_type, DT_REG, DT_LNK, DT_UNKNOWN)) |
1523 | return false; | |
1524 | ||
1525 | return endswith(de->d_name, ".journal") || | |
1526 | endswith(de->d_name, ".journal~"); | |
1527 | } | |
1528 | ||
456aa879 LP |
1529 | static bool dirent_is_journal_subdir(const struct dirent *de) { |
1530 | const char *e, *n; | |
858749f7 LP |
1531 | assert(de); |
1532 | ||
456aa879 LP |
1533 | /* returns true if the specified directory entry looks like a directory that might contain journal |
1534 | * files we might be interested in, i.e. is either a 128bit ID or a 128bit ID suffixed by a | |
1535 | * namespace. */ | |
1536 | ||
858749f7 LP |
1537 | if (!IN_SET(de->d_type, DT_DIR, DT_LNK, DT_UNKNOWN)) |
1538 | return false; | |
1539 | ||
456aa879 LP |
1540 | e = strchr(de->d_name, '.'); |
1541 | if (!e) | |
1542 | return id128_is_valid(de->d_name); /* No namespace */ | |
1543 | ||
1544 | n = strndupa(de->d_name, e - de->d_name); | |
1545 | if (!id128_is_valid(n)) | |
1546 | return false; | |
1547 | ||
1548 | return log_namespace_name_valid(e + 1); | |
858749f7 LP |
1549 | } |
1550 | ||
1551 | static int directory_open(sd_journal *j, const char *path, DIR **ret) { | |
1552 | DIR *d; | |
1553 | ||
1554 | assert(j); | |
1555 | assert(path); | |
1556 | assert(ret); | |
1557 | ||
1558 | if (j->toplevel_fd < 0) | |
1559 | d = opendir(path); | |
1560 | else | |
1561 | /* Open the specified directory relative to the toplevel fd. Enforce that the path specified is | |
1562 | * relative, by dropping the initial slash */ | |
1563 | d = xopendirat(j->toplevel_fd, skip_slash(path), 0); | |
1564 | if (!d) | |
1565 | return -errno; | |
1566 | ||
1567 | *ret = d; | |
1568 | return 0; | |
1569 | } | |
1570 | ||
1571 | static int add_directory(sd_journal *j, const char *prefix, const char *dirname); | |
1572 | ||
1573 | static void directory_enumerate(sd_journal *j, Directory *m, DIR *d) { | |
1574 | struct dirent *de; | |
1575 | ||
1576 | assert(j); | |
1577 | assert(m); | |
1578 | assert(d); | |
1579 | ||
1580 | FOREACH_DIRENT_ALL(de, d, goto fail) { | |
fc1813c0 | 1581 | |
858749f7 | 1582 | if (dirent_is_journal_file(de)) |
fc1813c0 | 1583 | (void) add_file_by_name(j, m->path, de->d_name); |
858749f7 | 1584 | |
456aa879 | 1585 | if (m->is_root && dirent_is_journal_subdir(de)) |
858749f7 LP |
1586 | (void) add_directory(j, m->path, de->d_name); |
1587 | } | |
1588 | ||
1589 | return; | |
1590 | ||
1591 | fail: | |
1592 | log_debug_errno(errno, "Failed to enumerate directory %s, ignoring: %m", m->path); | |
1593 | } | |
1594 | ||
1595 | static void directory_watch(sd_journal *j, Directory *m, int fd, uint32_t mask) { | |
1596 | int r; | |
1597 | ||
1598 | assert(j); | |
1599 | assert(m); | |
1600 | assert(fd >= 0); | |
1601 | ||
1602 | /* Watch this directory if that's enabled and if it not being watched yet. */ | |
1603 | ||
1604 | if (m->wd > 0) /* Already have a watch? */ | |
1605 | return; | |
1606 | if (j->inotify_fd < 0) /* Not watching at all? */ | |
1607 | return; | |
1608 | ||
1609 | m->wd = inotify_add_watch_fd(j->inotify_fd, fd, mask); | |
1610 | if (m->wd < 0) { | |
1611 | log_debug_errno(errno, "Failed to watch journal directory '%s', ignoring: %m", m->path); | |
1612 | return; | |
1613 | } | |
1614 | ||
1615 | r = hashmap_put(j->directories_by_wd, INT_TO_PTR(m->wd), m); | |
1616 | if (r == -EEXIST) | |
1617 | log_debug_errno(r, "Directory '%s' already being watched under a different path, ignoring: %m", m->path); | |
1618 | if (r < 0) { | |
1619 | log_debug_errno(r, "Failed to add watch for journal directory '%s' to hashmap, ignoring: %m", m->path); | |
1620 | (void) inotify_rm_watch(j->inotify_fd, m->wd); | |
1621 | m->wd = -1; | |
1622 | } | |
1623 | } | |
1624 | ||
456aa879 LP |
1625 | static int add_directory( |
1626 | sd_journal *j, | |
1627 | const char *prefix, | |
1628 | const char *dirname) { | |
1629 | ||
7fd1b19b | 1630 | _cleanup_free_ char *path = NULL; |
7fd1b19b | 1631 | _cleanup_closedir_ DIR *d = NULL; |
a963990f | 1632 | Directory *m; |
d617408e | 1633 | int r, k; |
3fbf9cbb LP |
1634 | |
1635 | assert(j); | |
1636 | assert(prefix); | |
3fbf9cbb | 1637 | |
5d1ce257 LP |
1638 | /* Adds a journal file directory to watch. If the directory is already tracked this updates the inotify watch |
1639 | * and reenumerates directory contents */ | |
d95b1fb3 | 1640 | |
657ee2d8 | 1641 | path = path_join(prefix, dirname); |
d617408e LP |
1642 | if (!path) { |
1643 | r = -ENOMEM; | |
1644 | goto fail; | |
1645 | } | |
3fbf9cbb | 1646 | |
858749f7 | 1647 | log_debug("Considering directory '%s'.", path); |
5d1ce257 LP |
1648 | |
1649 | /* We consider everything local that is in a directory for the local machine ID, or that is stored in /run */ | |
1650 | if ((j->flags & SD_JOURNAL_LOCAL_ONLY) && | |
1651 | !((dirname && dirname_is_machine_id(dirname) > 0) || path_has_prefix(j, path, "/run"))) | |
858749f7 | 1652 | return 0; |
5d1ce257 | 1653 | |
2b6df46d LP |
1654 | if (dirname && |
1655 | (!(FLAGS_SET(j->flags, SD_JOURNAL_ALL_NAMESPACES) || | |
1656 | dirname_has_namespace(dirname, j->namespace) > 0 || | |
1657 | (FLAGS_SET(j->flags, SD_JOURNAL_INCLUDE_DEFAULT_NAMESPACE) && dirname_has_namespace(dirname, NULL) > 0)))) | |
456aa879 LP |
1658 | return 0; |
1659 | ||
858749f7 LP |
1660 | r = directory_open(j, path, &d); |
1661 | if (r < 0) { | |
1662 | log_debug_errno(r, "Failed to open directory '%s': %m", path); | |
d617408e | 1663 | goto fail; |
3fbf9cbb LP |
1664 | } |
1665 | ||
a963990f LP |
1666 | m = hashmap_get(j->directories_by_path, path); |
1667 | if (!m) { | |
2f5435a1 | 1668 | m = new(Directory, 1); |
d617408e LP |
1669 | if (!m) { |
1670 | r = -ENOMEM; | |
1671 | goto fail; | |
1672 | } | |
a963990f | 1673 | |
2f5435a1 LP |
1674 | *m = (Directory) { |
1675 | .is_root = false, | |
1676 | .path = path, | |
1677 | }; | |
a963990f LP |
1678 | |
1679 | if (hashmap_put(j->directories_by_path, m->path, m) < 0) { | |
a963990f | 1680 | free(m); |
d617408e LP |
1681 | r = -ENOMEM; |
1682 | goto fail; | |
a963990f LP |
1683 | } |
1684 | ||
a50d7d43 | 1685 | path = NULL; /* avoid freeing in cleanup */ |
313cefa1 | 1686 | j->current_invalidate_counter++; |
a963990f | 1687 | |
5ec76417 | 1688 | log_debug("Directory %s added.", m->path); |
a963990f | 1689 | |
a50d7d43 | 1690 | } else if (m->is_root) |
858749f7 | 1691 | return 0; /* Don't 'downgrade' from root directory */ |
a963990f | 1692 | |
858749f7 | 1693 | m->last_seen_generation = j->generation; |
a963990f | 1694 | |
858749f7 LP |
1695 | directory_watch(j, m, dirfd(d), |
1696 | IN_CREATE|IN_MOVED_TO|IN_MODIFY|IN_ATTRIB|IN_DELETE| | |
1697 | IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_MOVED_FROM| | |
1698 | IN_ONLYDIR); | |
a963990f | 1699 | |
858749f7 LP |
1700 | if (!j->no_new_files) |
1701 | directory_enumerate(j, m, d); | |
a963990f | 1702 | |
85210bff LP |
1703 | check_network(j, dirfd(d)); |
1704 | ||
a963990f | 1705 | return 0; |
d617408e LP |
1706 | |
1707 | fail: | |
5d1ce257 | 1708 | k = journal_put_error(j, r, path ?: prefix); |
d617408e LP |
1709 | if (k < 0) |
1710 | return k; | |
1711 | ||
1712 | return r; | |
a963990f LP |
1713 | } |
1714 | ||
d617408e | 1715 | static int add_root_directory(sd_journal *j, const char *p, bool missing_ok) { |
5d1ce257 | 1716 | |
7fd1b19b | 1717 | _cleanup_closedir_ DIR *d = NULL; |
a963990f | 1718 | Directory *m; |
d617408e | 1719 | int r, k; |
a963990f LP |
1720 | |
1721 | assert(j); | |
a963990f | 1722 | |
5d1ce257 LP |
1723 | /* Adds a root directory to our set of directories to use. If the root directory is already in the set, we |
1724 | * update the inotify logic, and renumerate the directory entries. This call may hence be called to initially | |
1725 | * populate the set, as well as to update it later. */ | |
a963990f | 1726 | |
5d1ce257 LP |
1727 | if (p) { |
1728 | /* If there's a path specified, use it. */ | |
b6741478 | 1729 | |
858749f7 LP |
1730 | log_debug("Considering root directory '%s'.", p); |
1731 | ||
5d1ce257 LP |
1732 | if ((j->flags & SD_JOURNAL_RUNTIME_ONLY) && |
1733 | !path_has_prefix(j, p, "/run")) | |
1734 | return -EINVAL; | |
d617408e | 1735 | |
5d1ce257 LP |
1736 | if (j->prefix) |
1737 | p = strjoina(j->prefix, p); | |
1738 | ||
858749f7 LP |
1739 | r = directory_open(j, p, &d); |
1740 | if (r == -ENOENT && missing_ok) | |
1741 | return 0; | |
1742 | if (r < 0) { | |
1743 | log_debug_errno(r, "Failed to open root directory %s: %m", p); | |
5d1ce257 LP |
1744 | goto fail; |
1745 | } | |
1746 | } else { | |
8e06af80 | 1747 | _cleanup_close_ int dfd = -1; |
5d1ce257 LP |
1748 | |
1749 | /* If there's no path specified, then we use the top-level fd itself. We duplicate the fd here, since | |
1750 | * opendir() will take possession of the fd, and close it, which we don't want. */ | |
1751 | ||
1752 | p = "."; /* store this as "." in the directories hashmap */ | |
1753 | ||
1754 | dfd = fcntl(j->toplevel_fd, F_DUPFD_CLOEXEC, 3); | |
1755 | if (dfd < 0) { | |
1756 | r = -errno; | |
1757 | goto fail; | |
1758 | } | |
1759 | ||
8e06af80 | 1760 | d = take_fdopendir(&dfd); |
5d1ce257 LP |
1761 | if (!d) { |
1762 | r = -errno; | |
5d1ce257 LP |
1763 | goto fail; |
1764 | } | |
1765 | ||
1766 | rewinddir(d); | |
d617408e | 1767 | } |
a963990f LP |
1768 | |
1769 | m = hashmap_get(j->directories_by_path, p); | |
1770 | if (!m) { | |
1771 | m = new0(Directory, 1); | |
d617408e LP |
1772 | if (!m) { |
1773 | r = -ENOMEM; | |
1774 | goto fail; | |
1775 | } | |
a963990f LP |
1776 | |
1777 | m->is_root = true; | |
5d1ce257 | 1778 | |
a963990f LP |
1779 | m->path = strdup(p); |
1780 | if (!m->path) { | |
a963990f | 1781 | free(m); |
d617408e LP |
1782 | r = -ENOMEM; |
1783 | goto fail; | |
a963990f LP |
1784 | } |
1785 | ||
1786 | if (hashmap_put(j->directories_by_path, m->path, m) < 0) { | |
a963990f LP |
1787 | free(m->path); |
1788 | free(m); | |
d617408e LP |
1789 | r = -ENOMEM; |
1790 | goto fail; | |
a963990f LP |
1791 | } |
1792 | ||
313cefa1 | 1793 | j->current_invalidate_counter++; |
a963990f | 1794 | |
5ec76417 | 1795 | log_debug("Root directory %s added.", m->path); |
a963990f | 1796 | |
a50d7d43 | 1797 | } else if (!m->is_root) |
a963990f | 1798 | return 0; |
50f20cfd | 1799 | |
858749f7 LP |
1800 | directory_watch(j, m, dirfd(d), |
1801 | IN_CREATE|IN_MOVED_TO|IN_MODIFY|IN_ATTRIB|IN_DELETE| | |
1802 | IN_ONLYDIR); | |
a963990f | 1803 | |
858749f7 LP |
1804 | if (!j->no_new_files) |
1805 | directory_enumerate(j, m, d); | |
3fbf9cbb | 1806 | |
85210bff LP |
1807 | check_network(j, dirfd(d)); |
1808 | ||
a963990f | 1809 | return 0; |
d617408e LP |
1810 | |
1811 | fail: | |
5768d259 | 1812 | k = journal_put_error(j, r, p); |
d617408e LP |
1813 | if (k < 0) |
1814 | return k; | |
1815 | ||
1816 | return r; | |
a963990f LP |
1817 | } |
1818 | ||
b2b46f91 | 1819 | static void remove_directory(sd_journal *j, Directory *d) { |
a963990f LP |
1820 | assert(j); |
1821 | ||
1822 | if (d->wd > 0) { | |
1823 | hashmap_remove(j->directories_by_wd, INT_TO_PTR(d->wd)); | |
1824 | ||
1825 | if (j->inotify_fd >= 0) | |
98d4a4df | 1826 | (void) inotify_rm_watch(j->inotify_fd, d->wd); |
a963990f LP |
1827 | } |
1828 | ||
1829 | hashmap_remove(j->directories_by_path, d->path); | |
1830 | ||
1831 | if (d->is_root) | |
5ec76417 | 1832 | log_debug("Root directory %s removed.", d->path); |
a963990f | 1833 | else |
5ec76417 | 1834 | log_debug("Directory %s removed.", d->path); |
a963990f LP |
1835 | |
1836 | free(d->path); | |
1837 | free(d); | |
3fbf9cbb LP |
1838 | } |
1839 | ||
89739579 | 1840 | static int add_search_paths(sd_journal *j) { |
d617408e LP |
1841 | |
1842 | static const char search_paths[] = | |
a963990f LP |
1843 | "/run/log/journal\0" |
1844 | "/var/log/journal\0"; | |
1845 | const char *p; | |
50f20cfd LP |
1846 | |
1847 | assert(j); | |
50f20cfd | 1848 | |
a963990f LP |
1849 | /* We ignore most errors here, since the idea is to only open |
1850 | * what's actually accessible, and ignore the rest. */ | |
50f20cfd | 1851 | |
d617408e LP |
1852 | NULSTR_FOREACH(p, search_paths) |
1853 | (void) add_root_directory(j, p, true); | |
50f20cfd | 1854 | |
574b77ef MB |
1855 | if (!(j->flags & SD_JOURNAL_LOCAL_ONLY)) |
1856 | (void) add_root_directory(j, "/var/log/journal/remote", true); | |
1857 | ||
a963990f | 1858 | return 0; |
50f20cfd LP |
1859 | } |
1860 | ||
5302ebe1 ZJS |
1861 | static int add_current_paths(sd_journal *j) { |
1862 | Iterator i; | |
1863 | JournalFile *f; | |
1864 | ||
1865 | assert(j); | |
1866 | assert(j->no_new_files); | |
1867 | ||
5d1ce257 | 1868 | /* Simply adds all directories for files we have open as directories. We don't expect errors here, so we |
5302ebe1 ZJS |
1869 | * treat them as fatal. */ |
1870 | ||
c1f906bd | 1871 | ORDERED_HASHMAP_FOREACH(f, j->files, i) { |
5302ebe1 | 1872 | _cleanup_free_ char *dir; |
e9174f29 | 1873 | int r; |
5302ebe1 ZJS |
1874 | |
1875 | dir = dirname_malloc(f->path); | |
1876 | if (!dir) | |
1877 | return -ENOMEM; | |
1878 | ||
5d1ce257 | 1879 | r = add_directory(j, dir, NULL); |
d617408e | 1880 | if (r < 0) |
5302ebe1 | 1881 | return r; |
5302ebe1 ZJS |
1882 | } |
1883 | ||
1884 | return 0; | |
1885 | } | |
1886 | ||
a963990f | 1887 | static int allocate_inotify(sd_journal *j) { |
50f20cfd | 1888 | assert(j); |
50f20cfd | 1889 | |
a963990f LP |
1890 | if (j->inotify_fd < 0) { |
1891 | j->inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC); | |
1892 | if (j->inotify_fd < 0) | |
1893 | return -errno; | |
1894 | } | |
50f20cfd | 1895 | |
cb306f5d | 1896 | return hashmap_ensure_allocated(&j->directories_by_wd, NULL); |
50f20cfd LP |
1897 | } |
1898 | ||
456aa879 | 1899 | static sd_journal *journal_new(int flags, const char *path, const char *namespace) { |
17c9aff8 | 1900 | _cleanup_(sd_journal_closep) sd_journal *j = NULL; |
50f20cfd | 1901 | |
a963990f LP |
1902 | j = new0(sd_journal, 1); |
1903 | if (!j) | |
1904 | return NULL; | |
50f20cfd | 1905 | |
df0ff127 | 1906 | j->original_pid = getpid_cached(); |
5d1ce257 | 1907 | j->toplevel_fd = -1; |
a963990f LP |
1908 | j->inotify_fd = -1; |
1909 | j->flags = flags; | |
93b73b06 | 1910 | j->data_threshold = DEFAULT_DATA_THRESHOLD; |
50f20cfd | 1911 | |
7827b1a1 | 1912 | if (path) { |
16fefe90 ZJS |
1913 | char *t; |
1914 | ||
1915 | t = strdup(path); | |
1916 | if (!t) | |
17c9aff8 | 1917 | return NULL; |
16fefe90 ZJS |
1918 | |
1919 | if (flags & SD_JOURNAL_OS_ROOT) | |
1920 | j->prefix = t; | |
1921 | else | |
1922 | j->path = t; | |
7827b1a1 LP |
1923 | } |
1924 | ||
456aa879 LP |
1925 | if (namespace) { |
1926 | j->namespace = strdup(namespace); | |
1927 | if (!j->namespace) | |
1928 | return NULL; | |
1929 | } | |
1930 | ||
548f6937 | 1931 | j->files = ordered_hashmap_new(&path_hash_ops); |
5d4ba7f2 | 1932 | if (!j->files) |
17c9aff8 | 1933 | return NULL; |
5d4ba7f2 VC |
1934 | |
1935 | j->files_cache = ordered_hashmap_iterated_cache_new(j->files); | |
548f6937 | 1936 | j->directories_by_path = hashmap_new(&path_hash_ops); |
84168d80 | 1937 | j->mmap = mmap_cache_new(); |
5d4ba7f2 | 1938 | if (!j->files_cache || !j->directories_by_path || !j->mmap) |
17c9aff8 | 1939 | return NULL; |
6180fc61 | 1940 | |
17c9aff8 | 1941 | return TAKE_PTR(j); |
50f20cfd LP |
1942 | } |
1943 | ||
1aaa68f5 ZJS |
1944 | #define OPEN_ALLOWED_FLAGS \ |
1945 | (SD_JOURNAL_LOCAL_ONLY | \ | |
1946 | SD_JOURNAL_RUNTIME_ONLY | \ | |
456aa879 LP |
1947 | SD_JOURNAL_SYSTEM | \ |
1948 | SD_JOURNAL_CURRENT_USER | \ | |
1949 | SD_JOURNAL_ALL_NAMESPACES | \ | |
1950 | SD_JOURNAL_INCLUDE_DEFAULT_NAMESPACE) | |
1aaa68f5 | 1951 | |
456aa879 | 1952 | _public_ int sd_journal_open_namespace(sd_journal **ret, const char *namespace, int flags) { |
17c9aff8 | 1953 | _cleanup_(sd_journal_closep) sd_journal *j = NULL; |
3fbf9cbb | 1954 | int r; |
87d2c1ff | 1955 | |
1ae464e0 | 1956 | assert_return(ret, -EINVAL); |
1aaa68f5 | 1957 | assert_return((flags & ~OPEN_ALLOWED_FLAGS) == 0, -EINVAL); |
87d2c1ff | 1958 | |
456aa879 | 1959 | j = journal_new(flags, NULL, namespace); |
87d2c1ff LP |
1960 | if (!j) |
1961 | return -ENOMEM; | |
1962 | ||
89739579 | 1963 | r = add_search_paths(j); |
a963990f | 1964 | if (r < 0) |
17c9aff8 | 1965 | return r; |
50f20cfd | 1966 | |
17c9aff8 | 1967 | *ret = TAKE_PTR(j); |
a963990f | 1968 | return 0; |
a963990f | 1969 | } |
50f20cfd | 1970 | |
456aa879 LP |
1971 | _public_ int sd_journal_open(sd_journal **ret, int flags) { |
1972 | return sd_journal_open_namespace(ret, NULL, flags); | |
1973 | } | |
1974 | ||
1aaa68f5 ZJS |
1975 | #define OPEN_CONTAINER_ALLOWED_FLAGS \ |
1976 | (SD_JOURNAL_LOCAL_ONLY | SD_JOURNAL_SYSTEM) | |
1977 | ||
b6741478 LP |
1978 | _public_ int sd_journal_open_container(sd_journal **ret, const char *machine, int flags) { |
1979 | _cleanup_free_ char *root = NULL, *class = NULL; | |
17c9aff8 | 1980 | _cleanup_(sd_journal_closep) sd_journal *j = NULL; |
b6741478 LP |
1981 | char *p; |
1982 | int r; | |
1983 | ||
68312977 | 1984 | /* This is deprecated, people should use machined's OpenMachineRootDirectory() call instead in |
2daa9cbd LP |
1985 | * combination with sd_journal_open_directory_fd(). */ |
1986 | ||
b6741478 LP |
1987 | assert_return(machine, -EINVAL); |
1988 | assert_return(ret, -EINVAL); | |
1aaa68f5 | 1989 | assert_return((flags & ~OPEN_CONTAINER_ALLOWED_FLAGS) == 0, -EINVAL); |
affcf189 | 1990 | assert_return(machine_name_is_valid(machine), -EINVAL); |
b6741478 | 1991 | |
63c372cb | 1992 | p = strjoina("/run/systemd/machines/", machine); |
13df9c39 LP |
1993 | r = parse_env_file(NULL, p, |
1994 | "ROOT", &root, | |
1995 | "CLASS", &class); | |
b6741478 LP |
1996 | if (r == -ENOENT) |
1997 | return -EHOSTDOWN; | |
1998 | if (r < 0) | |
1999 | return r; | |
2000 | if (!root) | |
2001 | return -ENODATA; | |
2002 | ||
2003 | if (!streq_ptr(class, "container")) | |
2004 | return -EIO; | |
2005 | ||
456aa879 | 2006 | j = journal_new(flags, root, NULL); |
b6741478 LP |
2007 | if (!j) |
2008 | return -ENOMEM; | |
2009 | ||
89739579 | 2010 | r = add_search_paths(j); |
b6741478 | 2011 | if (r < 0) |
17c9aff8 | 2012 | return r; |
b6741478 | 2013 | |
17c9aff8 | 2014 | *ret = TAKE_PTR(j); |
b6741478 | 2015 | return 0; |
b6741478 LP |
2016 | } |
2017 | ||
1aaa68f5 | 2018 | #define OPEN_DIRECTORY_ALLOWED_FLAGS \ |
10752e82 ZJS |
2019 | (SD_JOURNAL_OS_ROOT | \ |
2020 | SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER ) | |
1aaa68f5 | 2021 | |
a963990f | 2022 | _public_ int sd_journal_open_directory(sd_journal **ret, const char *path, int flags) { |
17c9aff8 | 2023 | _cleanup_(sd_journal_closep) sd_journal *j = NULL; |
a963990f | 2024 | int r; |
87d2c1ff | 2025 | |
1ae464e0 TA |
2026 | assert_return(ret, -EINVAL); |
2027 | assert_return(path, -EINVAL); | |
1aaa68f5 | 2028 | assert_return((flags & ~OPEN_DIRECTORY_ALLOWED_FLAGS) == 0, -EINVAL); |
87d2c1ff | 2029 | |
456aa879 | 2030 | j = journal_new(flags, path, NULL); |
a963990f LP |
2031 | if (!j) |
2032 | return -ENOMEM; | |
3fbf9cbb | 2033 | |
d077390c LP |
2034 | if (flags & SD_JOURNAL_OS_ROOT) |
2035 | r = add_search_paths(j); | |
2036 | else | |
2037 | r = add_root_directory(j, path, false); | |
d617408e | 2038 | if (r < 0) |
17c9aff8 | 2039 | return r; |
87d2c1ff | 2040 | |
17c9aff8 | 2041 | *ret = TAKE_PTR(j); |
87d2c1ff | 2042 | return 0; |
a963990f | 2043 | } |
87d2c1ff | 2044 | |
5302ebe1 | 2045 | _public_ int sd_journal_open_files(sd_journal **ret, const char **paths, int flags) { |
17c9aff8 | 2046 | _cleanup_(sd_journal_closep) sd_journal *j = NULL; |
5302ebe1 ZJS |
2047 | const char **path; |
2048 | int r; | |
2049 | ||
1ae464e0 TA |
2050 | assert_return(ret, -EINVAL); |
2051 | assert_return(flags == 0, -EINVAL); | |
5302ebe1 | 2052 | |
456aa879 | 2053 | j = journal_new(flags, NULL, NULL); |
5302ebe1 ZJS |
2054 | if (!j) |
2055 | return -ENOMEM; | |
2056 | ||
2057 | STRV_FOREACH(path, paths) { | |
5d1ce257 | 2058 | r = add_any_file(j, -1, *path); |
d617408e | 2059 | if (r < 0) |
17c9aff8 | 2060 | return r; |
5302ebe1 ZJS |
2061 | } |
2062 | ||
2063 | j->no_new_files = true; | |
2064 | ||
17c9aff8 | 2065 | *ret = TAKE_PTR(j); |
5302ebe1 | 2066 | return 0; |
5d1ce257 LP |
2067 | } |
2068 | ||
1aaa68f5 | 2069 | #define OPEN_DIRECTORY_FD_ALLOWED_FLAGS \ |
10752e82 ZJS |
2070 | (SD_JOURNAL_OS_ROOT | \ |
2071 | SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER ) | |
1aaa68f5 | 2072 | |
5d1ce257 | 2073 | _public_ int sd_journal_open_directory_fd(sd_journal **ret, int fd, int flags) { |
17c9aff8 | 2074 | _cleanup_(sd_journal_closep) sd_journal *j = NULL; |
5d1ce257 LP |
2075 | struct stat st; |
2076 | int r; | |
2077 | ||
2078 | assert_return(ret, -EINVAL); | |
2079 | assert_return(fd >= 0, -EBADF); | |
1aaa68f5 | 2080 | assert_return((flags & ~OPEN_DIRECTORY_FD_ALLOWED_FLAGS) == 0, -EINVAL); |
5d1ce257 LP |
2081 | |
2082 | if (fstat(fd, &st) < 0) | |
2083 | return -errno; | |
2084 | ||
2085 | if (!S_ISDIR(st.st_mode)) | |
2086 | return -EBADFD; | |
2087 | ||
456aa879 | 2088 | j = journal_new(flags, NULL, NULL); |
5d1ce257 LP |
2089 | if (!j) |
2090 | return -ENOMEM; | |
2091 | ||
2092 | j->toplevel_fd = fd; | |
2093 | ||
d077390c LP |
2094 | if (flags & SD_JOURNAL_OS_ROOT) |
2095 | r = add_search_paths(j); | |
2096 | else | |
2097 | r = add_root_directory(j, NULL, false); | |
5d1ce257 | 2098 | if (r < 0) |
17c9aff8 | 2099 | return r; |
5d1ce257 | 2100 | |
17c9aff8 | 2101 | *ret = TAKE_PTR(j); |
5d1ce257 | 2102 | return 0; |
5d1ce257 LP |
2103 | } |
2104 | ||
2105 | _public_ int sd_journal_open_files_fd(sd_journal **ret, int fds[], unsigned n_fds, int flags) { | |
2106 | Iterator iterator; | |
2107 | JournalFile *f; | |
17c9aff8 | 2108 | _cleanup_(sd_journal_closep) sd_journal *j = NULL; |
5d1ce257 LP |
2109 | unsigned i; |
2110 | int r; | |
2111 | ||
2112 | assert_return(ret, -EINVAL); | |
2113 | assert_return(n_fds > 0, -EBADF); | |
2114 | assert_return(flags == 0, -EINVAL); | |
2115 | ||
456aa879 | 2116 | j = journal_new(flags, NULL, NULL); |
5d1ce257 LP |
2117 | if (!j) |
2118 | return -ENOMEM; | |
2119 | ||
2120 | for (i = 0; i < n_fds; i++) { | |
2121 | struct stat st; | |
2122 | ||
2123 | if (fds[i] < 0) { | |
2124 | r = -EBADF; | |
2125 | goto fail; | |
2126 | } | |
2127 | ||
2128 | if (fstat(fds[i], &st) < 0) { | |
2129 | r = -errno; | |
2130 | goto fail; | |
2131 | } | |
2132 | ||
3cc44114 LP |
2133 | r = stat_verify_regular(&st); |
2134 | if (r < 0) | |
5d1ce257 | 2135 | goto fail; |
5d1ce257 LP |
2136 | |
2137 | r = add_any_file(j, fds[i], NULL); | |
2138 | if (r < 0) | |
2139 | goto fail; | |
2140 | } | |
2141 | ||
2142 | j->no_new_files = true; | |
2143 | j->no_inotify = true; | |
5302ebe1 | 2144 | |
17c9aff8 | 2145 | *ret = TAKE_PTR(j); |
5d1ce257 LP |
2146 | return 0; |
2147 | ||
2148 | fail: | |
f8e2f4d6 | 2149 | /* If we fail, make sure we don't take possession of the files we managed to make use of successfully, and they |
5d1ce257 LP |
2150 | * remain open */ |
2151 | ORDERED_HASHMAP_FOREACH(f, j->files, iterator) | |
2152 | f->close_fd = false; | |
2153 | ||
5302ebe1 ZJS |
2154 | return r; |
2155 | } | |
2156 | ||
a5344d2c | 2157 | _public_ void sd_journal_close(sd_journal *j) { |
a963990f | 2158 | Directory *d; |
a963990f | 2159 | |
a5344d2c LP |
2160 | if (!j) |
2161 | return; | |
87d2c1ff | 2162 | |
54b1da83 LP |
2163 | sd_journal_flush_matches(j); |
2164 | ||
f9168190 | 2165 | ordered_hashmap_free_with_destructor(j->files, journal_file_close); |
5d4ba7f2 | 2166 | iterated_cache_free(j->files_cache); |
260a2be4 | 2167 | |
a963990f LP |
2168 | while ((d = hashmap_first(j->directories_by_path))) |
2169 | remove_directory(j, d); | |
260a2be4 | 2170 | |
a963990f LP |
2171 | while ((d = hashmap_first(j->directories_by_wd))) |
2172 | remove_directory(j, d); | |
87d2c1ff | 2173 | |
a963990f LP |
2174 | hashmap_free(j->directories_by_path); |
2175 | hashmap_free(j->directories_by_wd); | |
1cc101f1 | 2176 | |
03e334a1 | 2177 | safe_close(j->inotify_fd); |
50f20cfd | 2178 | |
bf807d4d LP |
2179 | if (j->mmap) { |
2180 | log_debug("mmap cache statistics: %u hit, %u miss", mmap_cache_get_hit(j->mmap), mmap_cache_get_missed(j->mmap)); | |
16e9f408 | 2181 | mmap_cache_unref(j->mmap); |
bf807d4d | 2182 | } |
16e9f408 | 2183 | |
ec1d2909 | 2184 | hashmap_free_free(j->errors); |
5768d259 | 2185 | |
7827b1a1 | 2186 | free(j->path); |
89739579 | 2187 | free(j->prefix); |
456aa879 | 2188 | free(j->namespace); |
3c1668da | 2189 | free(j->unique_field); |
eb86030e | 2190 | free(j->fields_buffer); |
87d2c1ff LP |
2191 | free(j); |
2192 | } | |
3fbf9cbb | 2193 | |
a5344d2c | 2194 | _public_ int sd_journal_get_realtime_usec(sd_journal *j, uint64_t *ret) { |
3fbf9cbb LP |
2195 | Object *o; |
2196 | JournalFile *f; | |
2197 | int r; | |
2198 | ||
1ae464e0 TA |
2199 | assert_return(j, -EINVAL); |
2200 | assert_return(!journal_pid_changed(j), -ECHILD); | |
2201 | assert_return(ret, -EINVAL); | |
3fbf9cbb LP |
2202 | |
2203 | f = j->current_file; | |
2204 | if (!f) | |
de190aef | 2205 | return -EADDRNOTAVAIL; |
3fbf9cbb LP |
2206 | |
2207 | if (f->current_offset <= 0) | |
de190aef | 2208 | return -EADDRNOTAVAIL; |
3fbf9cbb | 2209 | |
de190aef | 2210 | r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); |
3fbf9cbb LP |
2211 | if (r < 0) |
2212 | return r; | |
2213 | ||
2214 | *ret = le64toh(o->entry.realtime); | |
de190aef | 2215 | return 0; |
3fbf9cbb LP |
2216 | } |
2217 | ||
a5344d2c | 2218 | _public_ int sd_journal_get_monotonic_usec(sd_journal *j, uint64_t *ret, sd_id128_t *ret_boot_id) { |
3fbf9cbb LP |
2219 | Object *o; |
2220 | JournalFile *f; | |
2221 | int r; | |
2222 | sd_id128_t id; | |
2223 | ||
1ae464e0 TA |
2224 | assert_return(j, -EINVAL); |
2225 | assert_return(!journal_pid_changed(j), -ECHILD); | |
3fbf9cbb LP |
2226 | |
2227 | f = j->current_file; | |
2228 | if (!f) | |
de190aef | 2229 | return -EADDRNOTAVAIL; |
3fbf9cbb LP |
2230 | |
2231 | if (f->current_offset <= 0) | |
de190aef | 2232 | return -EADDRNOTAVAIL; |
3fbf9cbb | 2233 | |
de190aef | 2234 | r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); |
3fbf9cbb LP |
2235 | if (r < 0) |
2236 | return r; | |
2237 | ||
de190aef LP |
2238 | if (ret_boot_id) |
2239 | *ret_boot_id = o->entry.boot_id; | |
2240 | else { | |
2241 | r = sd_id128_get_boot(&id); | |
2242 | if (r < 0) | |
2243 | return r; | |
3fbf9cbb | 2244 | |
de190aef | 2245 | if (!sd_id128_equal(id, o->entry.boot_id)) |
df50185b | 2246 | return -ESTALE; |
de190aef | 2247 | } |
3fbf9cbb | 2248 | |
14a65d65 LP |
2249 | if (ret) |
2250 | *ret = le64toh(o->entry.monotonic); | |
2251 | ||
de190aef | 2252 | return 0; |
3fbf9cbb LP |
2253 | } |
2254 | ||
362a3f81 LP |
2255 | static bool field_is_valid(const char *field) { |
2256 | const char *p; | |
2257 | ||
2258 | assert(field); | |
2259 | ||
2260 | if (isempty(field)) | |
2261 | return false; | |
2262 | ||
2263 | if (startswith(field, "__")) | |
2264 | return false; | |
2265 | ||
2266 | for (p = field; *p; p++) { | |
2267 | ||
2268 | if (*p == '_') | |
2269 | continue; | |
2270 | ||
2271 | if (*p >= 'A' && *p <= 'Z') | |
2272 | continue; | |
2273 | ||
2274 | if (*p >= '0' && *p <= '9') | |
2275 | continue; | |
2276 | ||
2277 | return false; | |
2278 | } | |
2279 | ||
2280 | return true; | |
2281 | } | |
2282 | ||
a5344d2c | 2283 | _public_ int sd_journal_get_data(sd_journal *j, const char *field, const void **data, size_t *size) { |
3fbf9cbb LP |
2284 | JournalFile *f; |
2285 | uint64_t i, n; | |
2286 | size_t field_length; | |
2287 | int r; | |
2288 | Object *o; | |
2289 | ||
1ae464e0 TA |
2290 | assert_return(j, -EINVAL); |
2291 | assert_return(!journal_pid_changed(j), -ECHILD); | |
2292 | assert_return(field, -EINVAL); | |
2293 | assert_return(data, -EINVAL); | |
2294 | assert_return(size, -EINVAL); | |
2295 | assert_return(field_is_valid(field), -EINVAL); | |
3fbf9cbb LP |
2296 | |
2297 | f = j->current_file; | |
2298 | if (!f) | |
de190aef | 2299 | return -EADDRNOTAVAIL; |
3fbf9cbb LP |
2300 | |
2301 | if (f->current_offset <= 0) | |
de190aef | 2302 | return -EADDRNOTAVAIL; |
3fbf9cbb | 2303 | |
de190aef | 2304 | r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); |
3fbf9cbb LP |
2305 | if (r < 0) |
2306 | return r; | |
2307 | ||
2308 | field_length = strlen(field); | |
2309 | ||
2310 | n = journal_file_entry_n_items(o); | |
2311 | for (i = 0; i < n; i++) { | |
4fd052ae FC |
2312 | uint64_t p, l; |
2313 | le64_t le_hash; | |
3fbf9cbb | 2314 | size_t t; |
1ec7120e | 2315 | int compression; |
3fbf9cbb LP |
2316 | |
2317 | p = le64toh(o->entry.items[i].object_offset); | |
807e17f0 | 2318 | le_hash = o->entry.items[i].hash; |
de190aef | 2319 | r = journal_file_move_to_object(f, OBJECT_DATA, p, &o); |
3fbf9cbb LP |
2320 | if (r < 0) |
2321 | return r; | |
2322 | ||
de190aef | 2323 | if (le_hash != o->data.hash) |
de7b95cd LP |
2324 | return -EBADMSG; |
2325 | ||
3fbf9cbb LP |
2326 | l = le64toh(o->object.size) - offsetof(Object, data.payload); |
2327 | ||
1ec7120e | 2328 | compression = o->object.flags & OBJECT_COMPRESSION_MASK; |
3b1a55e1 | 2329 | if (compression) { |
d80b051c | 2330 | #if HAVE_COMPRESSION |
2aaec9b4 | 2331 | r = decompress_startswith(compression, |
3b1a55e1 ZJS |
2332 | o->data.payload, l, |
2333 | &f->compress_buffer, &f->compress_buffer_size, | |
2aaec9b4 ZJS |
2334 | field, field_length, '='); |
2335 | if (r < 0) | |
82e24b00 | 2336 | log_debug_errno(r, "Cannot decompress %s object of length %"PRIu64" at offset "OFSfmt": %m", |
2aaec9b4 ZJS |
2337 | object_compressed_to_string(compression), l, p); |
2338 | else if (r > 0) { | |
3b1a55e1 | 2339 | |
fa1c4b51 | 2340 | size_t rsize; |
3b1a55e1 ZJS |
2341 | |
2342 | r = decompress_blob(compression, | |
2343 | o->data.payload, l, | |
2344 | &f->compress_buffer, &f->compress_buffer_size, &rsize, | |
2345 | j->data_threshold); | |
2346 | if (r < 0) | |
2347 | return r; | |
807e17f0 | 2348 | |
3b1a55e1 ZJS |
2349 | *data = f->compress_buffer; |
2350 | *size = (size_t) rsize; | |
807e17f0 | 2351 | |
3b1a55e1 ZJS |
2352 | return 0; |
2353 | } | |
2354 | #else | |
2355 | return -EPROTONOSUPPORT; | |
2356 | #endif | |
807e17f0 LP |
2357 | } else if (l >= field_length+1 && |
2358 | memcmp(o->data.payload, field, field_length) == 0 && | |
2359 | o->data.payload[field_length] == '=') { | |
3fbf9cbb | 2360 | |
161e54f8 | 2361 | t = (size_t) l; |
3fbf9cbb | 2362 | |
161e54f8 LP |
2363 | if ((uint64_t) t != l) |
2364 | return -E2BIG; | |
3fbf9cbb | 2365 | |
161e54f8 LP |
2366 | *data = o->data.payload; |
2367 | *size = t; | |
3fbf9cbb | 2368 | |
99613ec5 | 2369 | return 0; |
161e54f8 | 2370 | } |
3fbf9cbb | 2371 | |
de190aef | 2372 | r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); |
161e54f8 LP |
2373 | if (r < 0) |
2374 | return r; | |
3fbf9cbb LP |
2375 | } |
2376 | ||
de190aef | 2377 | return -ENOENT; |
3fbf9cbb LP |
2378 | } |
2379 | ||
93b73b06 | 2380 | static int return_data(sd_journal *j, JournalFile *f, Object *o, const void **data, size_t *size) { |
3c1668da LP |
2381 | size_t t; |
2382 | uint64_t l; | |
3b1a55e1 | 2383 | int compression; |
3c1668da | 2384 | |
893e0f8f LP |
2385 | l = le64toh(READ_NOW(o->object.size)); |
2386 | if (l < offsetof(Object, data.payload)) | |
2387 | return -EBADMSG; | |
2388 | l -= offsetof(Object, data.payload); | |
3c1668da LP |
2389 | t = (size_t) l; |
2390 | ||
2391 | /* We can't read objects larger than 4G on a 32bit machine */ | |
2392 | if ((uint64_t) t != l) | |
2393 | return -E2BIG; | |
2394 | ||
1ec7120e ZJS |
2395 | compression = o->object.flags & OBJECT_COMPRESSION_MASK; |
2396 | if (compression) { | |
d80b051c | 2397 | #if HAVE_COMPRESSION |
fa1c4b51 | 2398 | size_t rsize; |
3b1a55e1 | 2399 | int r; |
3c1668da | 2400 | |
1ec7120e ZJS |
2401 | r = decompress_blob(compression, |
2402 | o->data.payload, l, &f->compress_buffer, | |
2403 | &f->compress_buffer_size, &rsize, j->data_threshold); | |
2404 | if (r < 0) | |
2405 | return r; | |
3c1668da LP |
2406 | |
2407 | *data = f->compress_buffer; | |
2408 | *size = (size_t) rsize; | |
3b1a55e1 ZJS |
2409 | #else |
2410 | return -EPROTONOSUPPORT; | |
2411 | #endif | |
3c1668da LP |
2412 | } else { |
2413 | *data = o->data.payload; | |
2414 | *size = t; | |
2415 | } | |
2416 | ||
2417 | return 0; | |
2418 | } | |
2419 | ||
a5344d2c | 2420 | _public_ int sd_journal_enumerate_data(sd_journal *j, const void **data, size_t *size) { |
3fbf9cbb | 2421 | JournalFile *f; |
3c1668da | 2422 | uint64_t p, n; |
4fd052ae | 2423 | le64_t le_hash; |
3fbf9cbb LP |
2424 | int r; |
2425 | Object *o; | |
2426 | ||
1ae464e0 TA |
2427 | assert_return(j, -EINVAL); |
2428 | assert_return(!journal_pid_changed(j), -ECHILD); | |
2429 | assert_return(data, -EINVAL); | |
2430 | assert_return(size, -EINVAL); | |
3fbf9cbb LP |
2431 | |
2432 | f = j->current_file; | |
2433 | if (!f) | |
de190aef | 2434 | return -EADDRNOTAVAIL; |
3fbf9cbb LP |
2435 | |
2436 | if (f->current_offset <= 0) | |
de190aef | 2437 | return -EADDRNOTAVAIL; |
3fbf9cbb | 2438 | |
de190aef | 2439 | r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o); |
3fbf9cbb LP |
2440 | if (r < 0) |
2441 | return r; | |
2442 | ||
2443 | n = journal_file_entry_n_items(o); | |
7210bfb3 | 2444 | if (j->current_field >= n) |
3fbf9cbb LP |
2445 | return 0; |
2446 | ||
7210bfb3 | 2447 | p = le64toh(o->entry.items[j->current_field].object_offset); |
de190aef LP |
2448 | le_hash = o->entry.items[j->current_field].hash; |
2449 | r = journal_file_move_to_object(f, OBJECT_DATA, p, &o); | |
3fbf9cbb LP |
2450 | if (r < 0) |
2451 | return r; | |
2452 | ||
de190aef | 2453 | if (le_hash != o->data.hash) |
de7b95cd LP |
2454 | return -EBADMSG; |
2455 | ||
93b73b06 | 2456 | r = return_data(j, f, o, data, size); |
3c1668da LP |
2457 | if (r < 0) |
2458 | return r; | |
3fbf9cbb | 2459 | |
313cefa1 | 2460 | j->current_field++; |
3fbf9cbb LP |
2461 | |
2462 | return 1; | |
2463 | } | |
c2373f84 | 2464 | |
76cbafcd ZJS |
2465 | _public_ int sd_journal_enumerate_available_data(sd_journal *j, const void **data, size_t *size) { |
2466 | for (;;) { | |
2467 | int r; | |
2468 | ||
2469 | r = sd_journal_enumerate_data(j, data, size); | |
2470 | if (r >= 0) | |
2471 | return r; | |
2472 | if (!JOURNAL_ERRNO_IS_UNAVAILABLE_FIELD(r)) | |
2473 | return r; | |
2474 | j->current_field++; /* Try with the next field */ | |
2475 | } | |
2476 | } | |
2477 | ||
a5344d2c LP |
2478 | _public_ void sd_journal_restart_data(sd_journal *j) { |
2479 | if (!j) | |
2480 | return; | |
8725d60a LP |
2481 | |
2482 | j->current_field = 0; | |
c2373f84 | 2483 | } |
50f20cfd | 2484 | |
858749f7 LP |
2485 | static int reiterate_all_paths(sd_journal *j) { |
2486 | assert(j); | |
2487 | ||
2488 | if (j->no_new_files) | |
2489 | return add_current_paths(j); | |
2490 | ||
2491 | if (j->flags & SD_JOURNAL_OS_ROOT) | |
2492 | return add_search_paths(j); | |
2493 | ||
2494 | if (j->toplevel_fd >= 0) | |
2495 | return add_root_directory(j, NULL, false); | |
2496 | ||
2497 | if (j->path) | |
2498 | return add_root_directory(j, j->path, true); | |
2499 | ||
2500 | return add_search_paths(j); | |
2501 | } | |
2502 | ||
a5344d2c | 2503 | _public_ int sd_journal_get_fd(sd_journal *j) { |
a963990f LP |
2504 | int r; |
2505 | ||
1ae464e0 TA |
2506 | assert_return(j, -EINVAL); |
2507 | assert_return(!journal_pid_changed(j), -ECHILD); | |
50f20cfd | 2508 | |
5d1ce257 LP |
2509 | if (j->no_inotify) |
2510 | return -EMEDIUMTYPE; | |
2511 | ||
a963990f LP |
2512 | if (j->inotify_fd >= 0) |
2513 | return j->inotify_fd; | |
2514 | ||
2515 | r = allocate_inotify(j); | |
2516 | if (r < 0) | |
2517 | return r; | |
2518 | ||
858749f7 | 2519 | log_debug("Reiterating files to get inotify watches established."); |
5d1ce257 | 2520 | |
858749f7 LP |
2521 | /* Iterate through all dirs again, to add them to the inotify */ |
2522 | r = reiterate_all_paths(j); | |
a963990f LP |
2523 | if (r < 0) |
2524 | return r; | |
2525 | ||
50f20cfd LP |
2526 | return j->inotify_fd; |
2527 | } | |
2528 | ||
ee531d94 LP |
2529 | _public_ int sd_journal_get_events(sd_journal *j) { |
2530 | int fd; | |
2531 | ||
1ae464e0 TA |
2532 | assert_return(j, -EINVAL); |
2533 | assert_return(!journal_pid_changed(j), -ECHILD); | |
ee531d94 LP |
2534 | |
2535 | fd = sd_journal_get_fd(j); | |
2536 | if (fd < 0) | |
2537 | return fd; | |
2538 | ||
2539 | return POLLIN; | |
2540 | } | |
2541 | ||
39c155ea LP |
2542 | _public_ int sd_journal_get_timeout(sd_journal *j, uint64_t *timeout_usec) { |
2543 | int fd; | |
2544 | ||
1ae464e0 TA |
2545 | assert_return(j, -EINVAL); |
2546 | assert_return(!journal_pid_changed(j), -ECHILD); | |
2547 | assert_return(timeout_usec, -EINVAL); | |
39c155ea LP |
2548 | |
2549 | fd = sd_journal_get_fd(j); | |
2550 | if (fd < 0) | |
2551 | return fd; | |
2552 | ||
2553 | if (!j->on_network) { | |
2554 | *timeout_usec = (uint64_t) -1; | |
2555 | return 0; | |
2556 | } | |
2557 | ||
2558 | /* If we are on the network we need to regularly check for | |
2559 | * changes manually */ | |
2560 | ||
2561 | *timeout_usec = j->last_process_usec + JOURNAL_FILES_RECHECK_USEC; | |
2562 | return 1; | |
2563 | } | |
2564 | ||
858749f7 LP |
2565 | static void process_q_overflow(sd_journal *j) { |
2566 | JournalFile *f; | |
2567 | Directory *m; | |
2568 | Iterator i; | |
2569 | ||
2570 | assert(j); | |
2571 | ||
2572 | /* When the inotify queue overruns we need to enumerate and re-validate all journal files to bring our list | |
2573 | * back in sync with what's on disk. For this we pick a new generation counter value. It'll be assigned to all | |
2574 | * journal files we encounter. All journal files and all directories that don't carry it after reenumeration | |
2575 | * are subject for unloading. */ | |
2576 | ||
2577 | log_debug("Inotify queue overrun, reiterating everything."); | |
2578 | ||
2579 | j->generation++; | |
2580 | (void) reiterate_all_paths(j); | |
2581 | ||
2582 | ORDERED_HASHMAP_FOREACH(f, j->files, i) { | |
2583 | ||
2584 | if (f->last_seen_generation == j->generation) | |
2585 | continue; | |
2586 | ||
2587 | log_debug("File '%s' hasn't been seen in this enumeration, removing.", f->path); | |
2588 | remove_file_real(j, f); | |
2589 | } | |
2590 | ||
2591 | HASHMAP_FOREACH(m, j->directories_by_path, i) { | |
2592 | ||
2593 | if (m->last_seen_generation == j->generation) | |
2594 | continue; | |
2595 | ||
2596 | if (m->is_root) /* Never GC root directories */ | |
2597 | continue; | |
2598 | ||
2599 | log_debug("Directory '%s' hasn't been seen in this enumeration, removing.", f->path); | |
2600 | remove_directory(j, m); | |
2601 | } | |
2602 | ||
2603 | log_debug("Reiteration complete."); | |
2604 | } | |
2605 | ||
31e99dd2 | 2606 | static void process_inotify_event(sd_journal *j, const struct inotify_event *e) { |
a963990f | 2607 | Directory *d; |
50f20cfd LP |
2608 | |
2609 | assert(j); | |
2610 | assert(e); | |
2611 | ||
858749f7 LP |
2612 | if (e->mask & IN_Q_OVERFLOW) { |
2613 | process_q_overflow(j); | |
2614 | return; | |
2615 | } | |
2616 | ||
50f20cfd | 2617 | /* Is this a subdirectory we watch? */ |
a963990f LP |
2618 | d = hashmap_get(j->directories_by_wd, INT_TO_PTR(e->wd)); |
2619 | if (d) { | |
de2c3907 LP |
2620 | if (!(e->mask & IN_ISDIR) && e->len > 0 && |
2621 | (endswith(e->name, ".journal") || | |
2622 | endswith(e->name, ".journal~"))) { | |
50f20cfd LP |
2623 | |
2624 | /* Event for a journal file */ | |
2625 | ||
d617408e | 2626 | if (e->mask & (IN_CREATE|IN_MOVED_TO|IN_MODIFY|IN_ATTRIB)) |
fc1813c0 | 2627 | (void) add_file_by_name(j, d->path, e->name); |
d617408e | 2628 | else if (e->mask & (IN_DELETE|IN_MOVED_FROM|IN_UNMOUNT)) |
fc1813c0 | 2629 | remove_file_by_name(j, d->path, e->name); |
50f20cfd | 2630 | |
a963990f | 2631 | } else if (!d->is_root && e->len == 0) { |
50f20cfd | 2632 | |
a963990f | 2633 | /* Event for a subdirectory */ |
50f20cfd | 2634 | |
b2b46f91 TA |
2635 | if (e->mask & (IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT)) |
2636 | remove_directory(j, d); | |
50f20cfd | 2637 | |
a9be0692 | 2638 | } else if (d->is_root && (e->mask & IN_ISDIR) && e->len > 0 && id128_is_valid(e->name)) { |
50f20cfd | 2639 | |
a963990f | 2640 | /* Event for root directory */ |
50f20cfd | 2641 | |
d617408e LP |
2642 | if (e->mask & (IN_CREATE|IN_MOVED_TO|IN_MODIFY|IN_ATTRIB)) |
2643 | (void) add_directory(j, d->path, e->name); | |
50f20cfd LP |
2644 | } |
2645 | ||
2646 | return; | |
2647 | } | |
2648 | ||
2649 | if (e->mask & IN_IGNORED) | |
2650 | return; | |
2651 | ||
a9be0692 | 2652 | log_debug("Unexpected inotify event."); |
50f20cfd LP |
2653 | } |
2654 | ||
a963990f LP |
2655 | static int determine_change(sd_journal *j) { |
2656 | bool b; | |
2657 | ||
2658 | assert(j); | |
2659 | ||
2660 | b = j->current_invalidate_counter != j->last_invalidate_counter; | |
2661 | j->last_invalidate_counter = j->current_invalidate_counter; | |
2662 | ||
2663 | return b ? SD_JOURNAL_INVALIDATE : SD_JOURNAL_APPEND; | |
2664 | } | |
2665 | ||
a5344d2c | 2666 | _public_ int sd_journal_process(sd_journal *j) { |
a963990f | 2667 | bool got_something = false; |
50f20cfd | 2668 | |
1ae464e0 TA |
2669 | assert_return(j, -EINVAL); |
2670 | assert_return(!journal_pid_changed(j), -ECHILD); | |
50f20cfd | 2671 | |
10c4d640 LP |
2672 | if (j->inotify_fd < 0) /* We have no inotify fd yet? Then there's noting to process. */ |
2673 | return 0; | |
2674 | ||
39c155ea | 2675 | j->last_process_usec = now(CLOCK_MONOTONIC); |
f9346444 | 2676 | j->last_invalidate_counter = j->current_invalidate_counter; |
39c155ea | 2677 | |
50f20cfd | 2678 | for (;;) { |
0254e944 | 2679 | union inotify_event_buffer buffer; |
50f20cfd LP |
2680 | struct inotify_event *e; |
2681 | ssize_t l; | |
2682 | ||
0254e944 | 2683 | l = read(j->inotify_fd, &buffer, sizeof(buffer)); |
50f20cfd | 2684 | if (l < 0) { |
3742095b | 2685 | if (IN_SET(errno, EAGAIN, EINTR)) |
a963990f | 2686 | return got_something ? determine_change(j) : SD_JOURNAL_NOP; |
50f20cfd LP |
2687 | |
2688 | return -errno; | |
2689 | } | |
2690 | ||
a963990f LP |
2691 | got_something = true; |
2692 | ||
f7c1ad4f | 2693 | FOREACH_INOTIFY_EVENT(e, buffer, l) |
50f20cfd | 2694 | process_inotify_event(j, e); |
50f20cfd LP |
2695 | } |
2696 | } | |
6ad1d1c3 | 2697 | |
e02d1cf7 | 2698 | _public_ int sd_journal_wait(sd_journal *j, uint64_t timeout_usec) { |
a963990f | 2699 | int r; |
39c155ea | 2700 | uint64_t t; |
e02d1cf7 | 2701 | |
1ae464e0 TA |
2702 | assert_return(j, -EINVAL); |
2703 | assert_return(!journal_pid_changed(j), -ECHILD); | |
e02d1cf7 | 2704 | |
a963990f | 2705 | if (j->inotify_fd < 0) { |
28ca867a MS |
2706 | Iterator i; |
2707 | JournalFile *f; | |
a963990f LP |
2708 | |
2709 | /* This is the first invocation, hence create the | |
2710 | * inotify watch */ | |
2711 | r = sd_journal_get_fd(j); | |
2712 | if (r < 0) | |
2713 | return r; | |
2714 | ||
28ca867a MS |
2715 | /* Server might have done some vacuuming while we weren't watching. |
2716 | Get rid of the deleted files now so they don't stay around indefinitely. */ | |
2717 | ORDERED_HASHMAP_FOREACH(f, j->files, i) { | |
2718 | r = journal_file_fstat(f); | |
8581b9f9 MS |
2719 | if (r == -EIDRM) |
2720 | remove_file_real(j, f); | |
2721 | else if (r < 0) { | |
28ca867a MS |
2722 | log_debug_errno(r,"Failed to fstat() journal file '%s' : %m", f->path); |
2723 | continue; | |
2724 | } | |
28ca867a MS |
2725 | } |
2726 | ||
a963990f LP |
2727 | /* The journal might have changed since the context |
2728 | * object was created and we weren't watching before, | |
2729 | * hence don't wait for anything, and return | |
2730 | * immediately. */ | |
2731 | return determine_change(j); | |
2732 | } | |
2733 | ||
39c155ea LP |
2734 | r = sd_journal_get_timeout(j, &t); |
2735 | if (r < 0) | |
2736 | return r; | |
2737 | ||
2738 | if (t != (uint64_t) -1) { | |
2739 | usec_t n; | |
2740 | ||
2741 | n = now(CLOCK_MONOTONIC); | |
2742 | t = t > n ? t - n : 0; | |
85210bff | 2743 | |
39c155ea LP |
2744 | if (timeout_usec == (uint64_t) -1 || timeout_usec > t) |
2745 | timeout_usec = t; | |
85210bff LP |
2746 | } |
2747 | ||
a963990f LP |
2748 | do { |
2749 | r = fd_wait_for_event(j->inotify_fd, POLLIN, timeout_usec); | |
2750 | } while (r == -EINTR); | |
e02d1cf7 LP |
2751 | |
2752 | if (r < 0) | |
2753 | return r; | |
2754 | ||
a963990f | 2755 | return sd_journal_process(j); |
e02d1cf7 LP |
2756 | } |
2757 | ||
08984293 LP |
2758 | _public_ int sd_journal_get_cutoff_realtime_usec(sd_journal *j, uint64_t *from, uint64_t *to) { |
2759 | Iterator i; | |
2760 | JournalFile *f; | |
2761 | bool first = true; | |
581483bf | 2762 | uint64_t fmin = 0, tmax = 0; |
08984293 LP |
2763 | int r; |
2764 | ||
1ae464e0 TA |
2765 | assert_return(j, -EINVAL); |
2766 | assert_return(!journal_pid_changed(j), -ECHILD); | |
2767 | assert_return(from || to, -EINVAL); | |
2768 | assert_return(from != to, -EINVAL); | |
08984293 | 2769 | |
c1f906bd | 2770 | ORDERED_HASHMAP_FOREACH(f, j->files, i) { |
08984293 LP |
2771 | usec_t fr, t; |
2772 | ||
2773 | r = journal_file_get_cutoff_realtime_usec(f, &fr, &t); | |
9f8d2983 LP |
2774 | if (r == -ENOENT) |
2775 | continue; | |
08984293 LP |
2776 | if (r < 0) |
2777 | return r; | |
2778 | if (r == 0) | |
2779 | continue; | |
2780 | ||
2781 | if (first) { | |
581483bf LP |
2782 | fmin = fr; |
2783 | tmax = t; | |
08984293 LP |
2784 | first = false; |
2785 | } else { | |
581483bf LP |
2786 | fmin = MIN(fr, fmin); |
2787 | tmax = MAX(t, tmax); | |
08984293 LP |
2788 | } |
2789 | } | |
2790 | ||
581483bf LP |
2791 | if (from) |
2792 | *from = fmin; | |
2793 | if (to) | |
2794 | *to = tmax; | |
2795 | ||
08984293 LP |
2796 | return first ? 0 : 1; |
2797 | } | |
2798 | ||
2799 | _public_ int sd_journal_get_cutoff_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t *from, uint64_t *to) { | |
2800 | Iterator i; | |
2801 | JournalFile *f; | |
1651e2c6 | 2802 | bool found = false; |
08984293 LP |
2803 | int r; |
2804 | ||
1ae464e0 TA |
2805 | assert_return(j, -EINVAL); |
2806 | assert_return(!journal_pid_changed(j), -ECHILD); | |
2807 | assert_return(from || to, -EINVAL); | |
2808 | assert_return(from != to, -EINVAL); | |
08984293 | 2809 | |
c1f906bd | 2810 | ORDERED_HASHMAP_FOREACH(f, j->files, i) { |
08984293 LP |
2811 | usec_t fr, t; |
2812 | ||
2813 | r = journal_file_get_cutoff_monotonic_usec(f, boot_id, &fr, &t); | |
9f8d2983 LP |
2814 | if (r == -ENOENT) |
2815 | continue; | |
08984293 LP |
2816 | if (r < 0) |
2817 | return r; | |
2818 | if (r == 0) | |
2819 | continue; | |
2820 | ||
1651e2c6 | 2821 | if (found) { |
08984293 | 2822 | if (from) |
1651e2c6 | 2823 | *from = MIN(fr, *from); |
08984293 | 2824 | if (to) |
1651e2c6 | 2825 | *to = MAX(t, *to); |
08984293 LP |
2826 | } else { |
2827 | if (from) | |
1651e2c6 | 2828 | *from = fr; |
08984293 | 2829 | if (to) |
1651e2c6 ZJS |
2830 | *to = t; |
2831 | found = true; | |
08984293 LP |
2832 | } |
2833 | } | |
2834 | ||
1651e2c6 | 2835 | return found; |
08984293 LP |
2836 | } |
2837 | ||
dca6219e LP |
2838 | void journal_print_header(sd_journal *j) { |
2839 | Iterator i; | |
2840 | JournalFile *f; | |
2841 | bool newline = false; | |
2842 | ||
2843 | assert(j); | |
2844 | ||
c1f906bd | 2845 | ORDERED_HASHMAP_FOREACH(f, j->files, i) { |
dca6219e LP |
2846 | if (newline) |
2847 | putchar('\n'); | |
2848 | else | |
2849 | newline = true; | |
2850 | ||
2851 | journal_file_print_header(f); | |
2852 | } | |
2853 | } | |
08984293 | 2854 | |
a1a03e30 LP |
2855 | _public_ int sd_journal_get_usage(sd_journal *j, uint64_t *bytes) { |
2856 | Iterator i; | |
2857 | JournalFile *f; | |
2858 | uint64_t sum = 0; | |
2859 | ||
1ae464e0 TA |
2860 | assert_return(j, -EINVAL); |
2861 | assert_return(!journal_pid_changed(j), -ECHILD); | |
2862 | assert_return(bytes, -EINVAL); | |
a1a03e30 | 2863 | |
c1f906bd | 2864 | ORDERED_HASHMAP_FOREACH(f, j->files, i) { |
a1a03e30 LP |
2865 | struct stat st; |
2866 | ||
2867 | if (fstat(f->fd, &st) < 0) | |
2868 | return -errno; | |
2869 | ||
2870 | sum += (uint64_t) st.st_blocks * 512ULL; | |
2871 | } | |
2872 | ||
2873 | *bytes = sum; | |
2874 | return 0; | |
2875 | } | |
2876 | ||
3c1668da LP |
2877 | _public_ int sd_journal_query_unique(sd_journal *j, const char *field) { |
2878 | char *f; | |
2879 | ||
1ae464e0 TA |
2880 | assert_return(j, -EINVAL); |
2881 | assert_return(!journal_pid_changed(j), -ECHILD); | |
2882 | assert_return(!isempty(field), -EINVAL); | |
2883 | assert_return(field_is_valid(field), -EINVAL); | |
3c1668da LP |
2884 | |
2885 | f = strdup(field); | |
2886 | if (!f) | |
2887 | return -ENOMEM; | |
2888 | ||
2889 | free(j->unique_field); | |
2890 | j->unique_field = f; | |
2891 | j->unique_file = NULL; | |
2892 | j->unique_offset = 0; | |
360af4cf | 2893 | j->unique_file_lost = false; |
3c1668da LP |
2894 | |
2895 | return 0; | |
2896 | } | |
2897 | ||
2898 | _public_ int sd_journal_enumerate_unique(sd_journal *j, const void **data, size_t *l) { | |
3c1668da | 2899 | size_t k; |
19a2bd80 | 2900 | |
1ae464e0 TA |
2901 | assert_return(j, -EINVAL); |
2902 | assert_return(!journal_pid_changed(j), -ECHILD); | |
2903 | assert_return(data, -EINVAL); | |
2904 | assert_return(l, -EINVAL); | |
2905 | assert_return(j->unique_field, -EINVAL); | |
19a2bd80 | 2906 | |
3c1668da | 2907 | k = strlen(j->unique_field); |
19a2bd80 | 2908 | |
3c1668da | 2909 | if (!j->unique_file) { |
360af4cf ZJS |
2910 | if (j->unique_file_lost) |
2911 | return 0; | |
2912 | ||
c1f906bd | 2913 | j->unique_file = ordered_hashmap_first(j->files); |
3c1668da LP |
2914 | if (!j->unique_file) |
2915 | return 0; | |
360af4cf | 2916 | |
3c1668da LP |
2917 | j->unique_offset = 0; |
2918 | } | |
19a2bd80 | 2919 | |
3c1668da LP |
2920 | for (;;) { |
2921 | JournalFile *of; | |
2922 | Iterator i; | |
ae97089d | 2923 | Object *o; |
3c1668da LP |
2924 | const void *odata; |
2925 | size_t ol; | |
2926 | bool found; | |
ae97089d | 2927 | int r; |
3c1668da | 2928 | |
bdc02927 | 2929 | /* Proceed to next data object in the field's linked list */ |
3c1668da LP |
2930 | if (j->unique_offset == 0) { |
2931 | r = journal_file_find_field_object(j->unique_file, j->unique_field, k, &o, NULL); | |
2932 | if (r < 0) | |
2933 | return r; | |
2934 | ||
2935 | j->unique_offset = r > 0 ? le64toh(o->field.head_data_offset) : 0; | |
2936 | } else { | |
2937 | r = journal_file_move_to_object(j->unique_file, OBJECT_DATA, j->unique_offset, &o); | |
2938 | if (r < 0) | |
2939 | return r; | |
2940 | ||
2941 | j->unique_offset = le64toh(o->data.next_field_offset); | |
2942 | } | |
2943 | ||
2944 | /* We reached the end of the list? Then start again, with the next file */ | |
2945 | if (j->unique_offset == 0) { | |
c1f906bd | 2946 | j->unique_file = ordered_hashmap_next(j->files, j->unique_file->path); |
360af4cf | 2947 | if (!j->unique_file) |
3c1668da LP |
2948 | return 0; |
2949 | ||
3c1668da LP |
2950 | continue; |
2951 | } | |
2952 | ||
d05089d8 MS |
2953 | /* We do not use OBJECT_DATA context here, but OBJECT_UNUSED |
2954 | * instead, so that we can look at this data object at the same | |
3c1668da | 2955 | * time as one on another file */ |
d05089d8 | 2956 | r = journal_file_move_to_object(j->unique_file, OBJECT_UNUSED, j->unique_offset, &o); |
3c1668da LP |
2957 | if (r < 0) |
2958 | return r; | |
2959 | ||
2960 | /* Let's do the type check by hand, since we used 0 context above. */ | |
baaa35ad ZJS |
2961 | if (o->object.type != OBJECT_DATA) |
2962 | return log_debug_errno(SYNTHETIC_ERRNO(EBADMSG), | |
2963 | "%s:offset " OFSfmt ": object has type %d, expected %d", | |
2964 | j->unique_file->path, | |
2965 | j->unique_offset, | |
2966 | o->object.type, OBJECT_DATA); | |
ae97089d | 2967 | |
93b73b06 | 2968 | r = return_data(j, j->unique_file, o, &odata, &ol); |
3c1668da LP |
2969 | if (r < 0) |
2970 | return r; | |
2971 | ||
0f99f74a | 2972 | /* Check if we have at least the field name and "=". */ |
baaa35ad ZJS |
2973 | if (ol <= k) |
2974 | return log_debug_errno(SYNTHETIC_ERRNO(EBADMSG), | |
2975 | "%s:offset " OFSfmt ": object has size %zu, expected at least %zu", | |
2976 | j->unique_file->path, | |
2977 | j->unique_offset, ol, k + 1); | |
2978 | ||
2979 | if (memcmp(odata, j->unique_field, k) || ((const char*) odata)[k] != '=') | |
2980 | return log_debug_errno(SYNTHETIC_ERRNO(EBADMSG), | |
2981 | "%s:offset " OFSfmt ": object does not start with \"%s=\"", | |
2982 | j->unique_file->path, | |
2983 | j->unique_offset, | |
2984 | j->unique_field); | |
0f99f74a | 2985 | |
3c1668da LP |
2986 | /* OK, now let's see if we already returned this data |
2987 | * object by checking if it exists in the earlier | |
2988 | * traversed files. */ | |
2989 | found = false; | |
c1f906bd | 2990 | ORDERED_HASHMAP_FOREACH(of, j->files, i) { |
3c1668da LP |
2991 | if (of == j->unique_file) |
2992 | break; | |
2993 | ||
ed71f956 LP |
2994 | /* Skip this file it didn't have any fields indexed */ |
2995 | if (JOURNAL_HEADER_CONTAINS(of->header, n_fields) && le64toh(of->header->n_fields) <= 0) | |
3c1668da LP |
2996 | continue; |
2997 | ||
ed71f956 | 2998 | r = journal_file_find_data_object_with_hash(of, odata, ol, le64toh(o->data.hash), NULL, NULL); |
3c1668da LP |
2999 | if (r < 0) |
3000 | return r; | |
ed71f956 | 3001 | if (r > 0) { |
3c1668da | 3002 | found = true; |
ed71f956 LP |
3003 | break; |
3004 | } | |
3c1668da LP |
3005 | } |
3006 | ||
06cc69d4 JJ |
3007 | if (found) |
3008 | continue; | |
3009 | ||
93b73b06 | 3010 | r = return_data(j, j->unique_file, o, data, l); |
3c1668da LP |
3011 | if (r < 0) |
3012 | return r; | |
3013 | ||
3014 | return 1; | |
3015 | } | |
3016 | } | |
3017 | ||
76cbafcd ZJS |
3018 | _public_ int sd_journal_enumerate_available_unique(sd_journal *j, const void **data, size_t *size) { |
3019 | for (;;) { | |
3020 | int r; | |
3021 | ||
3022 | r = sd_journal_enumerate_unique(j, data, size); | |
3023 | if (r >= 0) | |
3024 | return r; | |
3025 | if (!JOURNAL_ERRNO_IS_UNAVAILABLE_FIELD(r)) | |
3026 | return r; | |
3027 | /* Try with the next field. sd_journal_enumerate_unique() modifies state, so on the next try | |
3028 | * we will access the next field. */ | |
3029 | } | |
3030 | } | |
3031 | ||
115646c7 | 3032 | _public_ void sd_journal_restart_unique(sd_journal *j) { |
3c1668da LP |
3033 | if (!j) |
3034 | return; | |
3035 | ||
3036 | j->unique_file = NULL; | |
3037 | j->unique_offset = 0; | |
360af4cf | 3038 | j->unique_file_lost = false; |
3c1668da | 3039 | } |
85210bff | 3040 | |
eb86030e LP |
3041 | _public_ int sd_journal_enumerate_fields(sd_journal *j, const char **field) { |
3042 | int r; | |
3043 | ||
3044 | assert_return(j, -EINVAL); | |
3045 | assert_return(!journal_pid_changed(j), -ECHILD); | |
3046 | assert_return(field, -EINVAL); | |
3047 | ||
3048 | if (!j->fields_file) { | |
3049 | if (j->fields_file_lost) | |
3050 | return 0; | |
3051 | ||
3052 | j->fields_file = ordered_hashmap_first(j->files); | |
3053 | if (!j->fields_file) | |
3054 | return 0; | |
3055 | ||
3056 | j->fields_hash_table_index = 0; | |
3057 | j->fields_offset = 0; | |
3058 | } | |
3059 | ||
3060 | for (;;) { | |
3061 | JournalFile *f, *of; | |
3062 | Iterator i; | |
3063 | uint64_t m; | |
3064 | Object *o; | |
3065 | size_t sz; | |
3066 | bool found; | |
3067 | ||
3068 | f = j->fields_file; | |
3069 | ||
3070 | if (j->fields_offset == 0) { | |
3071 | bool eof = false; | |
3072 | ||
3073 | /* We are not yet positioned at any field. Let's pick the first one */ | |
3074 | r = journal_file_map_field_hash_table(f); | |
3075 | if (r < 0) | |
3076 | return r; | |
3077 | ||
3078 | m = le64toh(f->header->field_hash_table_size) / sizeof(HashItem); | |
3079 | for (;;) { | |
3080 | if (j->fields_hash_table_index >= m) { | |
3081 | /* Reached the end of the hash table, go to the next file. */ | |
3082 | eof = true; | |
3083 | break; | |
3084 | } | |
3085 | ||
3086 | j->fields_offset = le64toh(f->field_hash_table[j->fields_hash_table_index].head_hash_offset); | |
3087 | ||
3088 | if (j->fields_offset != 0) | |
3089 | break; | |
3090 | ||
3091 | /* Empty hash table bucket, go to next one */ | |
3092 | j->fields_hash_table_index++; | |
3093 | } | |
3094 | ||
3095 | if (eof) { | |
3096 | /* Proceed with next file */ | |
3097 | j->fields_file = ordered_hashmap_next(j->files, f->path); | |
3098 | if (!j->fields_file) { | |
3099 | *field = NULL; | |
3100 | return 0; | |
3101 | } | |
3102 | ||
3103 | j->fields_offset = 0; | |
3104 | j->fields_hash_table_index = 0; | |
3105 | continue; | |
3106 | } | |
3107 | ||
3108 | } else { | |
3109 | /* We are already positioned at a field. If so, let's figure out the next field from it */ | |
3110 | ||
3111 | r = journal_file_move_to_object(f, OBJECT_FIELD, j->fields_offset, &o); | |
3112 | if (r < 0) | |
3113 | return r; | |
3114 | ||
3115 | j->fields_offset = le64toh(o->field.next_hash_offset); | |
3116 | if (j->fields_offset == 0) { | |
3117 | /* Reached the end of the hash table chain */ | |
3118 | j->fields_hash_table_index++; | |
3119 | continue; | |
3120 | } | |
3121 | } | |
3122 | ||
1f133e0d | 3123 | /* We use OBJECT_UNUSED here, so that the iterator below doesn't remove our mmap window */ |
eb86030e LP |
3124 | r = journal_file_move_to_object(f, OBJECT_UNUSED, j->fields_offset, &o); |
3125 | if (r < 0) | |
3126 | return r; | |
3127 | ||
3128 | /* Because we used OBJECT_UNUSED above, we need to do our type check manually */ | |
baaa35ad ZJS |
3129 | if (o->object.type != OBJECT_FIELD) |
3130 | return log_debug_errno(SYNTHETIC_ERRNO(EBADMSG), | |
3131 | "%s:offset " OFSfmt ": object has type %i, expected %i", | |
3132 | f->path, j->fields_offset, | |
3133 | o->object.type, OBJECT_FIELD); | |
eb86030e LP |
3134 | |
3135 | sz = le64toh(o->object.size) - offsetof(Object, field.payload); | |
3136 | ||
3137 | /* Let's see if we already returned this field name before. */ | |
3138 | found = false; | |
3139 | ORDERED_HASHMAP_FOREACH(of, j->files, i) { | |
3140 | if (of == f) | |
3141 | break; | |
3142 | ||
3143 | /* Skip this file it didn't have any fields indexed */ | |
3144 | if (JOURNAL_HEADER_CONTAINS(of->header, n_fields) && le64toh(of->header->n_fields) <= 0) | |
3145 | continue; | |
3146 | ||
3147 | r = journal_file_find_field_object_with_hash(of, o->field.payload, sz, le64toh(o->field.hash), NULL, NULL); | |
3148 | if (r < 0) | |
3149 | return r; | |
3150 | if (r > 0) { | |
3151 | found = true; | |
3152 | break; | |
3153 | } | |
3154 | } | |
3155 | ||
3156 | if (found) | |
3157 | continue; | |
3158 | ||
3159 | /* Check if this is really a valid string containing no NUL byte */ | |
3160 | if (memchr(o->field.payload, 0, sz)) | |
3161 | return -EBADMSG; | |
3162 | ||
3163 | if (sz > j->data_threshold) | |
3164 | sz = j->data_threshold; | |
3165 | ||
3166 | if (!GREEDY_REALLOC(j->fields_buffer, j->fields_buffer_allocated, sz + 1)) | |
3167 | return -ENOMEM; | |
3168 | ||
3169 | memcpy(j->fields_buffer, o->field.payload, sz); | |
3170 | j->fields_buffer[sz] = 0; | |
3171 | ||
3172 | if (!field_is_valid(j->fields_buffer)) | |
3173 | return -EBADMSG; | |
3174 | ||
3175 | *field = j->fields_buffer; | |
3176 | return 1; | |
3177 | } | |
3178 | } | |
3179 | ||
3180 | _public_ void sd_journal_restart_fields(sd_journal *j) { | |
3181 | if (!j) | |
3182 | return; | |
3183 | ||
3184 | j->fields_file = NULL; | |
3185 | j->fields_hash_table_index = 0; | |
3186 | j->fields_offset = 0; | |
3187 | j->fields_file_lost = false; | |
3188 | } | |
3189 | ||
85210bff | 3190 | _public_ int sd_journal_reliable_fd(sd_journal *j) { |
1ae464e0 TA |
3191 | assert_return(j, -EINVAL); |
3192 | assert_return(!journal_pid_changed(j), -ECHILD); | |
85210bff LP |
3193 | |
3194 | return !j->on_network; | |
3195 | } | |
d4205751 LP |
3196 | |
3197 | static char *lookup_field(const char *field, void *userdata) { | |
3198 | sd_journal *j = userdata; | |
3199 | const void *data; | |
3200 | size_t size, d; | |
3201 | int r; | |
3202 | ||
3203 | assert(field); | |
3204 | assert(j); | |
3205 | ||
3206 | r = sd_journal_get_data(j, field, &data, &size); | |
3207 | if (r < 0 || | |
3208 | size > REPLACE_VAR_MAX) | |
3209 | return strdup(field); | |
3210 | ||
3211 | d = strlen(field) + 1; | |
3212 | ||
3213 | return strndup((const char*) data + d, size - d); | |
3214 | } | |
3215 | ||
3216 | _public_ int sd_journal_get_catalog(sd_journal *j, char **ret) { | |
3217 | const void *data; | |
3218 | size_t size; | |
3219 | sd_id128_t id; | |
3220 | _cleanup_free_ char *text = NULL, *cid = NULL; | |
3221 | char *t; | |
3222 | int r; | |
3223 | ||
1ae464e0 TA |
3224 | assert_return(j, -EINVAL); |
3225 | assert_return(!journal_pid_changed(j), -ECHILD); | |
3226 | assert_return(ret, -EINVAL); | |
d4205751 LP |
3227 | |
3228 | r = sd_journal_get_data(j, "MESSAGE_ID", &data, &size); | |
3229 | if (r < 0) | |
3230 | return r; | |
3231 | ||
3232 | cid = strndup((const char*) data + 11, size - 11); | |
3233 | if (!cid) | |
3234 | return -ENOMEM; | |
3235 | ||
3236 | r = sd_id128_from_string(cid, &id); | |
3237 | if (r < 0) | |
3238 | return r; | |
3239 | ||
844ec79b | 3240 | r = catalog_get(CATALOG_DATABASE, id, &text); |
d4205751 LP |
3241 | if (r < 0) |
3242 | return r; | |
3243 | ||
3244 | t = replace_var(text, lookup_field, j); | |
3245 | if (!t) | |
3246 | return -ENOMEM; | |
3247 | ||
3248 | *ret = t; | |
3249 | return 0; | |
3250 | } | |
8f1e860f LP |
3251 | |
3252 | _public_ int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **ret) { | |
1ae464e0 | 3253 | assert_return(ret, -EINVAL); |
8f1e860f | 3254 | |
844ec79b | 3255 | return catalog_get(CATALOG_DATABASE, id, ret); |
8f1e860f | 3256 | } |
93b73b06 LP |
3257 | |
3258 | _public_ int sd_journal_set_data_threshold(sd_journal *j, size_t sz) { | |
1ae464e0 TA |
3259 | assert_return(j, -EINVAL); |
3260 | assert_return(!journal_pid_changed(j), -ECHILD); | |
93b73b06 LP |
3261 | |
3262 | j->data_threshold = sz; | |
3263 | return 0; | |
3264 | } | |
3265 | ||
3266 | _public_ int sd_journal_get_data_threshold(sd_journal *j, size_t *sz) { | |
1ae464e0 TA |
3267 | assert_return(j, -EINVAL); |
3268 | assert_return(!journal_pid_changed(j), -ECHILD); | |
3269 | assert_return(sz, -EINVAL); | |
93b73b06 LP |
3270 | |
3271 | *sz = j->data_threshold; | |
3272 | return 0; | |
3273 | } | |
39fd5b08 JS |
3274 | |
3275 | _public_ int sd_journal_has_runtime_files(sd_journal *j) { | |
3276 | assert_return(j, -EINVAL); | |
3277 | ||
3278 | return j->has_runtime_files; | |
3279 | } | |
3280 | ||
3281 | _public_ int sd_journal_has_persistent_files(sd_journal *j) { | |
3282 | assert_return(j, -EINVAL); | |
3283 | ||
3284 | return j->has_persistent_files; | |
3285 | } |