Bug Summary

File:build-scan/../src/journal/sd-journal.c
Warning:line 2052, column 16
Potential leak of memory pointed to by 'j'

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name sd-journal.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=all -relaxed-aliasing -menable-no-infs -menable-no-nans -menable-unsafe-fp-math -fno-signed-zeros -mreassociate -freciprocal-math -fdenormal-fp-math=preserve-sign,preserve-sign -ffp-contract=fast -fno-rounding-math -ffast-math -ffinite-math-only -mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib64/clang/12.0.0 -include config.h -I src/journal/libjournal-client.a.p -I src/journal -I ../src/journal -I src/basic -I ../src/basic -I src/shared -I ../src/shared -I src/systemd -I ../src/systemd -I src/journal-remote -I ../src/journal-remote -I src/nspawn -I ../src/nspawn -I src/resolve -I ../src/resolve -I src/timesync -I ../src/timesync -I ../src/time-wait-sync -I src/login -I ../src/login -I src/udev -I ../src/udev -I src/libudev -I ../src/libudev -I src/core -I ../src/core -I ../src/libsystemd/sd-bus -I ../src/libsystemd/sd-device -I ../src/libsystemd/sd-hwdb -I ../src/libsystemd/sd-id128 -I ../src/libsystemd/sd-netlink -I ../src/libsystemd/sd-network -I src/libsystemd-network -I ../src/libsystemd-network -I . -I .. -D _FILE_OFFSET_BITS=64 -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/12.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -Wwrite-strings -Wno-unused-parameter -Wno-missing-field-initializers -Wno-unused-result -Wno-format-signedness -Wno-error=nonnull -std=gnu99 -fconst-strings -fdebug-compilation-dir /home/mrc0mmand/repos/@redhat-plumbers/systemd-rhel8/build-scan -ferror-limit 19 -fvisibility default -stack-protector 2 -fgnuc-version=4.2.1 -fcolor-diagnostics -analyzer-output=html -faddrsig -o /tmp/scan-build-2021-07-16-221226-1465241-1 -x c ../src/journal/sd-journal.c
1/* SPDX-License-Identifier: LGPL-2.1+ */
2
3#include <errno(*__errno_location ()).h>
4#include <fcntl.h>
5#include <inttypes.h>
6#include <linux1/magic.h>
7#include <poll.h>
8#include <stddef.h>
9#include <sys/inotify.h>
10#include <sys/vfs.h>
11#include <unistd.h>
12
13#include "sd-journal.h"
14
15#include "alloc-util.h"
16#include "catalog.h"
17#include "compress.h"
18#include "dirent-util.h"
19#include "escape.h"
20#include "fd-util.h"
21#include "fileio.h"
22#include "format-util.h"
23#include "fs-util.h"
24#include "hashmap.h"
25#include "hostname-util.h"
26#include "id128-util.h"
27#include "io-util.h"
28#include "journal-def.h"
29#include "journal-file.h"
30#include "journal-internal.h"
31#include "list.h"
32#include "lookup3.h"
33#include "missing.h"
34#include "path-util.h"
35#include "process-util.h"
36#include "replace-var.h"
37#include "stat-util.h"
38#include "stat-util.h"
39#include "stdio-util.h"
40#include "string-util.h"
41#include "strv.h"
42
43#define JOURNAL_FILES_MAX7168 7168
44
45#define JOURNAL_FILES_RECHECK_USEC(2 * ((usec_t) 1000000ULL)) (2 * USEC_PER_SEC((usec_t) 1000000ULL))
46
47#define REPLACE_VAR_MAX256 256
48
49#define DEFAULT_DATA_THRESHOLD(64*1024) (64*1024)
50
51static void remove_file_real(sd_journal *j, JournalFile *f);
52
53static bool_Bool journal_pid_changed(sd_journal *j) {
54 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 54,
__PRETTY_FUNCTION__); } while (0);
55
56 /* We don't support people creating a journal object and
57 * keeping it around over a fork(). Let's complain. */
58
59 return j->original_pid != getpid_cached();
60}
61
62static int journal_put_error(sd_journal *j, int r, const char *path) {
63 char *copy;
64 int k;
65
66 /* Memorize an error we encountered, and store which
67 * file/directory it was generated from. Note that we store
68 * only *one* path per error code, as the error code is the
69 * key into the hashmap, and the path is the value. This means
70 * we keep track only of all error kinds, but not of all error
71 * locations. This has the benefit that the hashmap cannot
72 * grow beyond bounds.
73 *
74 * We return an error here only if we didn't manage to
75 * memorize the real error. */
76
77 if (r >= 0)
78 return r;
79
80 k = hashmap_ensure_allocated(&j->errors, NULL)internal_hashmap_ensure_allocated(&j->errors, ((void*)
0) );
81 if (k < 0)
82 return k;
83
84 if (path) {
85 copy = strdup(path);
86 if (!copy)
87 return -ENOMEM12;
88 } else
89 copy = NULL((void*)0);
90
91 k = hashmap_put(j->errors, INT_TO_PTR(r)((void *) ((intptr_t) (r))), copy);
92 if (k < 0) {
93 free(copy);
94
95 if (k == -EEXIST17)
96 return 0;
97
98 return k;
99 }
100
101 return 0;
102}
103
104static void detach_location(sd_journal *j) {
105 Iterator i;
106 JournalFile *f;
107
108 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 108
, __PRETTY_FUNCTION__); } while (0);
109
110 j->current_file = NULL((void*)0);
111 j->current_field = 0;
112
113 ORDERED_HASHMAP_FOREACH(f, j->files, i)for ((i) = ((Iterator) { .idx = ((2147483647 *2U +1U) - 1), .
next_key = ((void*)0) }); ordered_hashmap_iterate((j->files
), &(i), (void**)&(f), ((void*)0)); )
114 journal_file_reset_location(f);
115}
116
117static void reset_location(sd_journal *j) {
118 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 118
, __PRETTY_FUNCTION__); } while (0);
119
120 detach_location(j);
121 zero(j->current_location)(({ size_t _l_ = (sizeof(j->current_location)); void *_x_ =
(&(j->current_location)); _l_ == 0 ? _x_ : memset(_x_
, 0, _l_); }));
122}
123
124static void init_location(Location *l, LocationType type, JournalFile *f, Object *o) {
125 assert(l)do { if ((__builtin_expect(!!(!(l)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("l"), "../src/journal/sd-journal.c", 125
, __PRETTY_FUNCTION__); } while (0);
126 assert(IN_SET(type, LOCATION_DISCRETE, LOCATION_SEEK))do { if ((__builtin_expect(!!(!(({ _Bool _found = 0; static __attribute__
((unused)) char _static_assert__macros_need_to_be_extended[20
- sizeof((int[]){LOCATION_DISCRETE, LOCATION_SEEK})/sizeof(int
)]; switch(type) { case LOCATION_DISCRETE: case LOCATION_SEEK
: _found = 1; break; default: break; } _found; }))),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("IN_SET(type, LOCATION_DISCRETE, LOCATION_SEEK)"
), "../src/journal/sd-journal.c", 126, __PRETTY_FUNCTION__); }
while (0);
127 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/journal/sd-journal.c", 127
, __PRETTY_FUNCTION__); } while (0);
128 assert(o->object.type == OBJECT_ENTRY)do { if ((__builtin_expect(!!(!(o->object.type == OBJECT_ENTRY
)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("o->object.type == OBJECT_ENTRY"
), "../src/journal/sd-journal.c", 128, __PRETTY_FUNCTION__); }
while (0);
129
130 l->type = type;
131 l->seqnum = le64toh(o->entry.seqnum);
132 l->seqnum_id = f->header->seqnum_id;
133 l->realtime = le64toh(o->entry.realtime);
134 l->monotonic = le64toh(o->entry.monotonic);
135 l->boot_id = o->entry.boot_id;
136 l->xor_hash = le64toh(o->entry.xor_hash);
137
138 l->seqnum_set = l->realtime_set = l->monotonic_set = l->xor_hash_set = true1;
139}
140
141static void set_location(sd_journal *j, JournalFile *f, Object *o) {
142 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 142
, __PRETTY_FUNCTION__); } while (0);
143 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/journal/sd-journal.c", 143
, __PRETTY_FUNCTION__); } while (0);
144 assert(o)do { if ((__builtin_expect(!!(!(o)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("o"), "../src/journal/sd-journal.c", 144
, __PRETTY_FUNCTION__); } while (0);
145
146 init_location(&j->current_location, LOCATION_DISCRETE, f, o);
147
148 j->current_file = f;
149 j->current_field = 0;
150
151 /* Let f know its candidate entry was picked. */
152 assert(f->location_type == LOCATION_SEEK)do { if ((__builtin_expect(!!(!(f->location_type == LOCATION_SEEK
)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("f->location_type == LOCATION_SEEK"
), "../src/journal/sd-journal.c", 152, __PRETTY_FUNCTION__); }
while (0);
153 f->location_type = LOCATION_DISCRETE;
154}
155
156static int match_is_valid(const void *data, size_t size) {
157 const char *b, *p;
158
159 assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/journal/sd-journal.c", 159
, __PRETTY_FUNCTION__); } while (0);
160
161 if (size < 2)
162 return false0;
163
164 if (startswith(data, "__"))
165 return false0;
166
167 b = data;
168 for (p = b; p < b + size; p++) {
169
170 if (*p == '=')
171 return p > b;
172
173 if (*p == '_')
174 continue;
175
176 if (*p >= 'A' && *p <= 'Z')
177 continue;
178
179 if (*p >= '0' && *p <= '9')
180 continue;
181
182 return false0;
183 }
184
185 return false0;
186}
187
188static bool_Bool same_field(const void *_a, size_t s, const void *_b, size_t t) {
189 const uint8_t *a = _a, *b = _b;
190 size_t j;
191
192 for (j = 0; j < s && j < t; j++) {
193
194 if (a[j] != b[j])
195 return false0;
196
197 if (a[j] == '=')
198 return true1;
199 }
200
201 assert_not_reached("\"=\" not found")do { log_assert_failed_unreachable_realm(LOG_REALM_SYSTEMD, (
"\"=\" not found"), "../src/journal/sd-journal.c", 201, __PRETTY_FUNCTION__
); } while (0);
202}
203
204static Match *match_new(Match *p, MatchType t) {
205 Match *m;
206
207 m = new0(Match, 1)((Match*) calloc((1), sizeof(Match)));
208 if (!m)
209 return NULL((void*)0);
210
211 m->type = t;
212
213 if (p) {
214 m->parent = p;
215 LIST_PREPEND(matches, p->matches, m)do { typeof(*(p->matches)) **_head = &(p->matches),
*_item = (m); do { if ((__builtin_expect(!!(!(_item)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("_item"), "../src/journal/sd-journal.c",
215, __PRETTY_FUNCTION__); } while (0); if ((_item->matches_next
= *_head)) _item->matches_next->matches_prev = _item; _item
->matches_prev = ((void*)0); *_head = _item; } while (0);
216 }
217
218 return m;
219}
220
221static void match_free(Match *m) {
222 assert(m)do { if ((__builtin_expect(!!(!(m)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("m"), "../src/journal/sd-journal.c", 222
, __PRETTY_FUNCTION__); } while (0);
223
224 while (m->matches)
225 match_free(m->matches);
226
227 if (m->parent)
228 LIST_REMOVE(matches, m->parent->matches, m)do { typeof(*(m->parent->matches)) **_head = &(m->
parent->matches), *_item = (m); do { if ((__builtin_expect
(!!(!(_item)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD,
("_item"), "../src/journal/sd-journal.c", 228, __PRETTY_FUNCTION__
); } while (0); if (_item->matches_next) _item->matches_next
->matches_prev = _item->matches_prev; if (_item->matches_prev
) _item->matches_prev->matches_next = _item->matches_next
; else { do { if ((__builtin_expect(!!(!(*_head == _item)),0)
)) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("*_head == _item"
), "../src/journal/sd-journal.c", 228, __PRETTY_FUNCTION__); }
while (0); *_head = _item->matches_next; } _item->matches_next
= _item->matches_prev = ((void*)0); } while (0);
229
230 free(m->data);
231 free(m);
232}
233
234static void match_free_if_empty(Match *m) {
235 if (!m || m->matches)
236 return;
237
238 match_free(m);
239}
240
241_public___attribute__ ((visibility("default"))) int sd_journal_add_match(sd_journal *j, const void *data, size_t size) {
242 Match *l3, *l4, *add_here = NULL((void*)0), *m;
243 le64_t le_hash;
244
245 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 245
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
246 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 246
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
247 assert_return(data, -EINVAL)do { if (!(((__builtin_expect(!!(data),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/journal/sd-journal.c", 247
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
248
249 if (size == 0)
250 size = strlen(data);
251
252 assert_return(match_is_valid(data, size), -EINVAL)do { if (!(((__builtin_expect(!!(match_is_valid(data, size)),
1))) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD
, ("match_is_valid(data, size)"), "../src/journal/sd-journal.c"
, 252, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
253
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 */
259
260 if (!j->level0) {
261 j->level0 = match_new(NULL((void*)0), MATCH_AND_TERM);
262 if (!j->level0)
263 return -ENOMEM12;
264 }
265
266 if (!j->level1) {
267 j->level1 = match_new(j->level0, MATCH_OR_TERM);
268 if (!j->level1)
269 return -ENOMEM12;
270 }
271
272 if (!j->level2) {
273 j->level2 = match_new(j->level1, MATCH_AND_TERM);
274 if (!j->level2)
275 return -ENOMEM12;
276 }
277
278 assert(j->level0->type == MATCH_AND_TERM)do { if ((__builtin_expect(!!(!(j->level0->type == MATCH_AND_TERM
)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("j->level0->type == MATCH_AND_TERM"
), "../src/journal/sd-journal.c", 278, __PRETTY_FUNCTION__); }
while (0);
279 assert(j->level1->type == MATCH_OR_TERM)do { if ((__builtin_expect(!!(!(j->level1->type == MATCH_OR_TERM
)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("j->level1->type == MATCH_OR_TERM"
), "../src/journal/sd-journal.c", 279, __PRETTY_FUNCTION__); }
while (0);
280 assert(j->level2->type == MATCH_AND_TERM)do { if ((__builtin_expect(!!(!(j->level2->type == MATCH_AND_TERM
)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("j->level2->type == MATCH_AND_TERM"
), "../src/journal/sd-journal.c", 280, __PRETTY_FUNCTION__); }
while (0);
281
282 le_hash = htole64(hash64(data, size));
283
284 LIST_FOREACH(matches, l3, j->level2->matches)for ((l3) = (j->level2->matches); (l3); (l3) = (l3)->
matches_next) {
285 assert(l3->type == MATCH_OR_TERM)do { if ((__builtin_expect(!!(!(l3->type == MATCH_OR_TERM)
),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("l3->type == MATCH_OR_TERM"
), "../src/journal/sd-journal.c", 285, __PRETTY_FUNCTION__); }
while (0);
286
287 LIST_FOREACH(matches, l4, l3->matches)for ((l4) = (l3->matches); (l4); (l4) = (l4)->matches_next
) {
288 assert(l4->type == MATCH_DISCRETE)do { if ((__builtin_expect(!!(!(l4->type == MATCH_DISCRETE
)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("l4->type == MATCH_DISCRETE"
), "../src/journal/sd-journal.c", 288, __PRETTY_FUNCTION__); }
while (0);
289
290 /* Exactly the same match already? Then ignore
291 * this addition */
292 if (l4->le_hash == le_hash &&
293 l4->size == size &&
294 memcmp(l4->data, data, size) == 0)
295 return 0;
296
297 /* Same field? Then let's add this to this OR term */
298 if (same_field(data, size, l4->data, l4->size)) {
299 add_here = l3;
300 break;
301 }
302 }
303
304 if (add_here)
305 break;
306 }
307
308 if (!add_here) {
309 add_here = match_new(j->level2, MATCH_OR_TERM);
310 if (!add_here)
311 goto fail;
312 }
313
314 m = match_new(add_here, MATCH_DISCRETE);
315 if (!m)
316 goto fail;
317
318 m->le_hash = le_hash;
319 m->size = size;
320 m->data = memdup(data, size);
321 if (!m->data)
322 goto fail;
323
324 detach_location(j);
325
326 return 0;
327
328fail:
329 match_free_if_empty(add_here);
330 match_free_if_empty(j->level2);
331 match_free_if_empty(j->level1);
332 match_free_if_empty(j->level0);
333
334 return -ENOMEM12;
335}
336
337_public___attribute__ ((visibility("default"))) int sd_journal_add_conjunction(sd_journal *j) {
338 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 338
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
339 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 339
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
340
341 if (!j->level0)
342 return 0;
343
344 if (!j->level1)
345 return 0;
346
347 if (!j->level1->matches)
348 return 0;
349
350 j->level1 = NULL((void*)0);
351 j->level2 = NULL((void*)0);
352
353 return 0;
354}
355
356_public___attribute__ ((visibility("default"))) int sd_journal_add_disjunction(sd_journal *j) {
357 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 357
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
358 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 358
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
359
360 if (!j->level0)
361 return 0;
362
363 if (!j->level1)
364 return 0;
365
366 if (!j->level2)
367 return 0;
368
369 if (!j->level2->matches)
370 return 0;
371
372 j->level2 = NULL((void*)0);
373 return 0;
374}
375
376static char *match_make_string(Match *m) {
377 char *p = NULL((void*)0), *r;
378 Match *i;
379 bool_Bool enclose = false0;
380
381 if (!m)
382 return strdup("none");
383
384 if (m->type == MATCH_DISCRETE)
385 return cescape_length(m->data, m->size);
386
387 LIST_FOREACH(matches, i, m->matches)for ((i) = (m->matches); (i); (i) = (i)->matches_next) {
388 char *t, *k;
389
390 t = match_make_string(i);
391 if (!t)
392 return mfree(p);
393
394 if (p) {
395 k = strjoin(p, m->type == MATCH_OR_TERM ? " OR " : " AND ", t)strjoin_real((p), m->type == MATCH_OR_TERM ? " OR " : " AND "
, t, ((void*)0));
396 free(p);
397 free(t);
398
399 if (!k)
400 return NULL((void*)0);
401
402 p = k;
403
404 enclose = true1;
405 } else
406 p = t;
407 }
408
409 if (enclose) {
410 r = strjoin("(", p, ")")strjoin_real(("("), p, ")", ((void*)0));
411 free(p);
412 return r;
413 }
414
415 return p;
416}
417
418char *journal_make_match_string(sd_journal *j) {
419 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 419
, __PRETTY_FUNCTION__); } while (0);
420
421 return match_make_string(j->level0);
422}
423
424_public___attribute__ ((visibility("default"))) void sd_journal_flush_matches(sd_journal *j) {
425 if (!j)
426 return;
427
428 if (j->level0)
429 match_free(j->level0);
430
431 j->level0 = j->level1 = j->level2 = NULL((void*)0);
432
433 detach_location(j);
434}
435
436_pure___attribute__ ((pure)) static int compare_with_location(JournalFile *f, Location *l) {
437 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/journal/sd-journal.c", 437
, __PRETTY_FUNCTION__); } while (0);
438 assert(l)do { if ((__builtin_expect(!!(!(l)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("l"), "../src/journal/sd-journal.c", 438
, __PRETTY_FUNCTION__); } while (0);
439 assert(f->location_type == LOCATION_SEEK)do { if ((__builtin_expect(!!(!(f->location_type == LOCATION_SEEK
)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("f->location_type == LOCATION_SEEK"
), "../src/journal/sd-journal.c", 439, __PRETTY_FUNCTION__); }
while (0);
440 assert(IN_SET(l->type, LOCATION_DISCRETE, LOCATION_SEEK))do { if ((__builtin_expect(!!(!(({ _Bool _found = 0; static __attribute__
((unused)) char _static_assert__macros_need_to_be_extended[20
- sizeof((int[]){LOCATION_DISCRETE, LOCATION_SEEK})/sizeof(int
)]; switch(l->type) { case LOCATION_DISCRETE: case LOCATION_SEEK
: _found = 1; break; default: break; } _found; }))),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("IN_SET(l->type, LOCATION_DISCRETE, LOCATION_SEEK)"
), "../src/journal/sd-journal.c", 440, __PRETTY_FUNCTION__); }
while (0);
441
442 if (l->monotonic_set &&
443 sd_id128_equal(f->current_boot_id, l->boot_id) &&
444 l->realtime_set &&
445 f->current_realtime == l->realtime &&
446 l->xor_hash_set &&
447 f->current_xor_hash == l->xor_hash)
448 return 0;
449
450 if (l->seqnum_set &&
451 sd_id128_equal(f->header->seqnum_id, l->seqnum_id)) {
452
453 if (f->current_seqnum < l->seqnum)
454 return -1;
455 if (f->current_seqnum > l->seqnum)
456 return 1;
457 }
458
459 if (l->monotonic_set &&
460 sd_id128_equal(f->current_boot_id, l->boot_id)) {
461
462 if (f->current_monotonic < l->monotonic)
463 return -1;
464 if (f->current_monotonic > l->monotonic)
465 return 1;
466 }
467
468 if (l->realtime_set) {
469
470 if (f->current_realtime < l->realtime)
471 return -1;
472 if (f->current_realtime > l->realtime)
473 return 1;
474 }
475
476 if (l->xor_hash_set) {
477
478 if (f->current_xor_hash < l->xor_hash)
479 return -1;
480 if (f->current_xor_hash > l->xor_hash)
481 return 1;
482 }
483
484 return 0;
485}
486
487static int next_for_match(
488 sd_journal *j,
489 Match *m,
490 JournalFile *f,
491 uint64_t after_offset,
492 direction_t direction,
493 Object **ret,
494 uint64_t *offset) {
495
496 int r;
497 uint64_t np = 0;
498 Object *n;
499
500 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 500
, __PRETTY_FUNCTION__); } while (0);
501 assert(m)do { if ((__builtin_expect(!!(!(m)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("m"), "../src/journal/sd-journal.c", 501
, __PRETTY_FUNCTION__); } while (0);
502 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/journal/sd-journal.c", 502
, __PRETTY_FUNCTION__); } while (0);
503
504 if (m->type == MATCH_DISCRETE) {
505 uint64_t dp;
506
507 r = journal_file_find_data_object_with_hash(f, m->data, m->size, le64toh(m->le_hash), NULL((void*)0), &dp);
508 if (r <= 0)
509 return r;
510
511 return journal_file_move_to_entry_by_offset_for_data(f, dp, after_offset, direction, ret, offset);
512
513 } else if (m->type == MATCH_OR_TERM) {
514 Match *i;
515
516 /* Find the earliest match beyond after_offset */
517
518 LIST_FOREACH(matches, i, m->matches)for ((i) = (m->matches); (i); (i) = (i)->matches_next) {
519 uint64_t cp;
520
521 r = next_for_match(j, i, f, after_offset, direction, NULL((void*)0), &cp);
522 if (r < 0)
523 return r;
524 else if (r > 0) {
525 if (np == 0 || (direction == DIRECTION_DOWN ? cp < np : cp > np))
526 np = cp;
527 }
528 }
529
530 if (np == 0)
531 return 0;
532
533 } else if (m->type == MATCH_AND_TERM) {
534 Match *i, *last_moved;
535
536 /* Always jump to the next matching entry and repeat
537 * this until we find an offset that matches for all
538 * matches. */
539
540 if (!m->matches)
541 return 0;
542
543 r = next_for_match(j, m->matches, f, after_offset, direction, NULL((void*)0), &np);
544 if (r <= 0)
545 return r;
546
547 assert(direction == DIRECTION_DOWN ? np >= after_offset : np <= after_offset)do { if ((__builtin_expect(!!(!(direction == DIRECTION_DOWN ?
np >= after_offset : np <= after_offset)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("direction == DIRECTION_DOWN ? np >= after_offset : np <= after_offset"
), "../src/journal/sd-journal.c", 547, __PRETTY_FUNCTION__); }
while (0);
548 last_moved = m->matches;
549
550 LIST_LOOP_BUT_ONE(matches, i, m->matches, last_moved)for ((i) = (last_moved)->matches_next ? (last_moved)->matches_next
: (m->matches); (i) != (last_moved); (i) = (i)->matches_next
? (i)->matches_next : (m->matches)) {
551 uint64_t cp;
552
553 r = next_for_match(j, i, f, np, direction, NULL((void*)0), &cp);
554 if (r <= 0)
555 return r;
556
557 assert(direction == DIRECTION_DOWN ? cp >= np : cp <= np)do { if ((__builtin_expect(!!(!(direction == DIRECTION_DOWN ?
cp >= np : cp <= np)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD
, ("direction == DIRECTION_DOWN ? cp >= np : cp <= np")
, "../src/journal/sd-journal.c", 557, __PRETTY_FUNCTION__); }
while (0);
558 if (direction == DIRECTION_DOWN ? cp > np : cp < np) {
559 np = cp;
560 last_moved = i;
561 }
562 }
563 }
564
565 assert(np > 0)do { if ((__builtin_expect(!!(!(np > 0)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("np > 0"), "../src/journal/sd-journal.c"
, 565, __PRETTY_FUNCTION__); } while (0);
566
567 r = journal_file_move_to_object(f, OBJECT_ENTRY, np, &n);
568 if (r < 0)
569 return r;
570
571 if (ret)
572 *ret = n;
573 if (offset)
574 *offset = np;
575
576 return 1;
577}
578
579static int find_location_for_match(
580 sd_journal *j,
581 Match *m,
582 JournalFile *f,
583 direction_t direction,
584 Object **ret,
585 uint64_t *offset) {
586
587 int r;
588
589 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 589
, __PRETTY_FUNCTION__); } while (0);
590 assert(m)do { if ((__builtin_expect(!!(!(m)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("m"), "../src/journal/sd-journal.c", 590
, __PRETTY_FUNCTION__); } while (0);
591 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/journal/sd-journal.c", 591
, __PRETTY_FUNCTION__); } while (0);
592
593 if (m->type == MATCH_DISCRETE) {
594 uint64_t dp;
595
596 r = journal_file_find_data_object_with_hash(f, m->data, m->size, le64toh(m->le_hash), NULL((void*)0), &dp);
597 if (r <= 0)
598 return r;
599
600 /* FIXME: missing: find by monotonic */
601
602 if (j->current_location.type == LOCATION_HEAD)
603 return journal_file_next_entry_for_data(f, NULL((void*)0), 0, dp, DIRECTION_DOWN, ret, offset);
604 if (j->current_location.type == LOCATION_TAIL)
605 return journal_file_next_entry_for_data(f, NULL((void*)0), 0, dp, DIRECTION_UP, ret, offset);
606 if (j->current_location.seqnum_set && sd_id128_equal(j->current_location.seqnum_id, f->header->seqnum_id))
607 return journal_file_move_to_entry_by_seqnum_for_data(f, dp, j->current_location.seqnum, direction, ret, offset);
608 if (j->current_location.monotonic_set) {
609 r = journal_file_move_to_entry_by_monotonic_for_data(f, dp, j->current_location.boot_id, j->current_location.monotonic, direction, ret, offset);
610 if (r != -ENOENT2)
611 return r;
612 }
613 if (j->current_location.realtime_set)
614 return journal_file_move_to_entry_by_realtime_for_data(f, dp, j->current_location.realtime, direction, ret, offset);
615
616 return journal_file_next_entry_for_data(f, NULL((void*)0), 0, dp, direction, ret, offset);
617
618 } else if (m->type == MATCH_OR_TERM) {
619 uint64_t np = 0;
620 Object *n;
621 Match *i;
622
623 /* Find the earliest match */
624
625 LIST_FOREACH(matches, i, m->matches)for ((i) = (m->matches); (i); (i) = (i)->matches_next) {
626 uint64_t cp;
627
628 r = find_location_for_match(j, i, f, direction, NULL((void*)0), &cp);
629 if (r < 0)
630 return r;
631 else if (r > 0) {
632 if (np == 0 || (direction == DIRECTION_DOWN ? np > cp : np < cp))
633 np = cp;
634 }
635 }
636
637 if (np == 0)
638 return 0;
639
640 r = journal_file_move_to_object(f, OBJECT_ENTRY, np, &n);
641 if (r < 0)
642 return r;
643
644 if (ret)
645 *ret = n;
646 if (offset)
647 *offset = np;
648
649 return 1;
650
651 } else {
652 Match *i;
653 uint64_t np = 0;
654
655 assert(m->type == MATCH_AND_TERM)do { if ((__builtin_expect(!!(!(m->type == MATCH_AND_TERM)
),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("m->type == MATCH_AND_TERM"
), "../src/journal/sd-journal.c", 655, __PRETTY_FUNCTION__); }
while (0);
656
657 /* First jump to the last match, and then find the
658 * next one where all matches match */
659
660 if (!m->matches)
661 return 0;
662
663 LIST_FOREACH(matches, i, m->matches)for ((i) = (m->matches); (i); (i) = (i)->matches_next) {
664 uint64_t cp;
665
666 r = find_location_for_match(j, i, f, direction, NULL((void*)0), &cp);
667 if (r <= 0)
668 return r;
669
670 if (np == 0 || (direction == DIRECTION_DOWN ? cp > np : cp < np))
671 np = cp;
672 }
673
674 return next_for_match(j, m, f, np, direction, ret, offset);
675 }
676}
677
678static int find_location_with_matches(
679 sd_journal *j,
680 JournalFile *f,
681 direction_t direction,
682 Object **ret,
683 uint64_t *offset) {
684
685 int r;
686
687 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 687
, __PRETTY_FUNCTION__); } while (0);
688 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/journal/sd-journal.c", 688
, __PRETTY_FUNCTION__); } while (0);
689 assert(ret)do { if ((__builtin_expect(!!(!(ret)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/journal/sd-journal.c", 689
, __PRETTY_FUNCTION__); } while (0);
690 assert(offset)do { if ((__builtin_expect(!!(!(offset)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("offset"), "../src/journal/sd-journal.c"
, 690, __PRETTY_FUNCTION__); } while (0);
691
692 if (!j->level0) {
693 /* No matches is simple */
694
695 if (j->current_location.type == LOCATION_HEAD)
696 return journal_file_next_entry(f, 0, DIRECTION_DOWN, ret, offset);
697 if (j->current_location.type == LOCATION_TAIL)
698 return journal_file_next_entry(f, 0, DIRECTION_UP, ret, offset);
699 if (j->current_location.seqnum_set && sd_id128_equal(j->current_location.seqnum_id, f->header->seqnum_id))
700 return journal_file_move_to_entry_by_seqnum(f, j->current_location.seqnum, direction, ret, offset);
701 if (j->current_location.monotonic_set) {
702 r = journal_file_move_to_entry_by_monotonic(f, j->current_location.boot_id, j->current_location.monotonic, direction, ret, offset);
703 if (r != -ENOENT2)
704 return r;
705 }
706 if (j->current_location.realtime_set)
707 return journal_file_move_to_entry_by_realtime(f, j->current_location.realtime, direction, ret, offset);
708
709 return journal_file_next_entry(f, 0, direction, ret, offset);
710 } else
711 return find_location_for_match(j, j->level0, f, direction, ret, offset);
712}
713
714static int next_with_matches(
715 sd_journal *j,
716 JournalFile *f,
717 direction_t direction,
718 Object **ret,
719 uint64_t *offset) {
720
721 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 721
, __PRETTY_FUNCTION__); } while (0);
722 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/journal/sd-journal.c", 722
, __PRETTY_FUNCTION__); } while (0);
723 assert(ret)do { if ((__builtin_expect(!!(!(ret)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/journal/sd-journal.c", 723
, __PRETTY_FUNCTION__); } while (0);
724 assert(offset)do { if ((__builtin_expect(!!(!(offset)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("offset"), "../src/journal/sd-journal.c"
, 724, __PRETTY_FUNCTION__); } while (0);
725
726 /* No matches is easy. We simple advance the file
727 * pointer by one. */
728 if (!j->level0)
729 return journal_file_next_entry(f, f->current_offset, direction, ret, offset);
730
731 /* If we have a match then we look for the next matching entry
732 * with an offset at least one step larger */
733 return next_for_match(j, j->level0, f,
734 direction == DIRECTION_DOWN ? f->current_offset + 1
735 : f->current_offset - 1,
736 direction, ret, offset);
737}
738
739static int next_beyond_location(sd_journal *j, JournalFile *f, direction_t direction) {
740 Object *c;
741 uint64_t cp, n_entries;
742 int r;
743
744 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 744
, __PRETTY_FUNCTION__); } while (0);
745 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/journal/sd-journal.c", 745
, __PRETTY_FUNCTION__); } while (0);
746
747 n_entries = le64toh(f->header->n_entries);
748
749 /* If we hit EOF before, we don't need to look into this file again
750 * unless direction changed or new entries appeared. */
751 if (f->last_direction == direction && f->location_type == LOCATION_TAIL &&
752 n_entries == f->last_n_entries)
753 return 0;
754
755 f->last_n_entries = n_entries;
756
757 if (f->last_direction == direction && f->current_offset > 0) {
758 /* LOCATION_SEEK here means we did the work in a previous
759 * iteration and the current location already points to a
760 * candidate entry. */
761 if (f->location_type != LOCATION_SEEK) {
762 r = next_with_matches(j, f, direction, &c, &cp);
763 if (r <= 0)
764 return r;
765
766 journal_file_save_location(f, c, cp);
767 }
768 } else {
769 f->last_direction = direction;
770
771 r = find_location_with_matches(j, f, direction, &c, &cp);
772 if (r <= 0)
773 return r;
774
775 journal_file_save_location(f, c, cp);
776 }
777
778 /* OK, we found the spot, now let's advance until an entry
779 * that is actually different from what we were previously
780 * looking at. This is necessary to handle entries which exist
781 * in two (or more) journal files, and which shall all be
782 * suppressed but one. */
783
784 for (;;) {
785 bool_Bool found;
786
787 if (j->current_location.type == LOCATION_DISCRETE) {
788 int k;
789
790 k = compare_with_location(f, &j->current_location);
791
792 found = direction == DIRECTION_DOWN ? k > 0 : k < 0;
793 } else
794 found = true1;
795
796 if (found)
797 return 1;
798
799 r = next_with_matches(j, f, direction, &c, &cp);
800 if (r <= 0)
801 return r;
802
803 journal_file_save_location(f, c, cp);
804 }
805}
806
807static int real_journal_next(sd_journal *j, direction_t direction) {
808 JournalFile *new_file = NULL((void*)0);
809 unsigned i, n_files;
810 const void **files;
811 Object *o;
812 int r;
813
814 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 814
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
815 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 815
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
816
817 r = iterated_cache_get(j->files_cache, NULL((void*)0), &files, &n_files);
818 if (r < 0)
819 return r;
820
821 for (i = 0; i < n_files; i++) {
822 JournalFile *f = (JournalFile *)files[i];
823 bool_Bool found;
824
825 r = next_beyond_location(j, f, direction);
826 if (r < 0) {
827 log_debug_errno(r, "Can't iterate through %s, ignoring: %m", f->path)({ int _level = ((7)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 827, __func__, "Can't iterate through %s, ignoring: %m"
, f->path) : -abs(_e); });
828 remove_file_real(j, f);
829 continue;
830 } else if (r == 0) {
831 f->location_type = LOCATION_TAIL;
832 continue;
833 }
834
835 if (!new_file)
836 found = true1;
837 else {
838 int k;
839
840 k = journal_file_compare_locations(f, new_file);
841
842 found = direction == DIRECTION_DOWN ? k < 0 : k > 0;
843 }
844
845 if (found)
846 new_file = f;
847 }
848
849 if (!new_file)
850 return 0;
851
852 r = journal_file_move_to_object(new_file, OBJECT_ENTRY, new_file->current_offset, &o);
853 if (r < 0)
854 return r;
855
856 set_location(j, new_file, o);
857
858 return 1;
859}
860
861_public___attribute__ ((visibility("default"))) int sd_journal_next(sd_journal *j) {
862 return real_journal_next(j, DIRECTION_DOWN);
863}
864
865_public___attribute__ ((visibility("default"))) int sd_journal_previous(sd_journal *j) {
866 return real_journal_next(j, DIRECTION_UP);
867}
868
869static int real_journal_next_skip(sd_journal *j, direction_t direction, uint64_t skip) {
870 int c = 0, r;
871
872 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 872
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
873 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 873
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
874
875 if (skip == 0) {
876 /* If this is not a discrete skip, then at least
877 * resolve the current location */
878 if (j->current_location.type != LOCATION_DISCRETE) {
879 r = real_journal_next(j, direction);
880 if (r < 0)
881 return r;
882 }
883
884 return 0;
885 }
886
887 do {
888 r = real_journal_next(j, direction);
889 if (r < 0)
890 return r;
891
892 if (r == 0)
893 return c;
894
895 skip--;
896 c++;
897 } while (skip > 0);
898
899 return c;
900}
901
902_public___attribute__ ((visibility("default"))) int sd_journal_next_skip(sd_journal *j, uint64_t skip) {
903 return real_journal_next_skip(j, DIRECTION_DOWN, skip);
904}
905
906_public___attribute__ ((visibility("default"))) int sd_journal_previous_skip(sd_journal *j, uint64_t skip) {
907 return real_journal_next_skip(j, DIRECTION_UP, skip);
908}
909
910_public___attribute__ ((visibility("default"))) int sd_journal_get_cursor(sd_journal *j, char **cursor) {
911 Object *o;
912 int r;
913 char bid[33], sid[33];
914
915 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 915
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
916 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 916
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
917 assert_return(cursor, -EINVAL)do { if (!(((__builtin_expect(!!(cursor),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("cursor"), "../src/journal/sd-journal.c"
, 917, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
918
919 if (!j->current_file || j->current_file->current_offset <= 0)
920 return -EADDRNOTAVAIL99;
921
922 r = journal_file_move_to_object(j->current_file, OBJECT_ENTRY, j->current_file->current_offset, &o);
923 if (r < 0)
924 return r;
925
926 sd_id128_to_string(j->current_file->header->seqnum_id, sid);
927 sd_id128_to_string(o->entry.boot_id, bid);
928
929 if (asprintf(cursor,
930 "s=%s;i=%"PRIx64"l" "x"";b=%s;m=%"PRIx64"l" "x"";t=%"PRIx64"l" "x"";x=%"PRIx64"l" "x",
931 sid, le64toh(o->entry.seqnum),
932 bid, le64toh(o->entry.monotonic),
933 le64toh(o->entry.realtime),
934 le64toh(o->entry.xor_hash)) < 0)
935 return -ENOMEM12;
936
937 return 0;
938}
939
940_public___attribute__ ((visibility("default"))) int sd_journal_seek_cursor(sd_journal *j, const char *cursor) {
941 const char *word, *state;
942 size_t l;
943 unsigned long long seqnum, monotonic, realtime, xor_hash;
944 bool_Bool
945 seqnum_id_set = false0,
946 seqnum_set = false0,
947 boot_id_set = false0,
948 monotonic_set = false0,
949 realtime_set = false0,
950 xor_hash_set = false0;
951 sd_id128_t seqnum_id, boot_id;
952
953 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 953
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
954 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 954
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
955 assert_return(!isempty(cursor), -EINVAL)do { if (!(((__builtin_expect(!!(!isempty(cursor)),1))) ? (1)
: (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, ("!isempty(cursor)"
), "../src/journal/sd-journal.c", 955, __PRETTY_FUNCTION__), 0
))) return (-22); } while (0);
956
957 FOREACH_WORD_SEPARATOR(word, l, cursor, ";", state)for ((state) = (cursor), (word) = split(&(state), &(l
), (";"), (0)); (word); (word) = split(&(state), &(l)
, (";"), (0))) {
958 char *item;
959 int k = 0;
960
961 if (l < 2 || word[1] != '=')
962 return -EINVAL22;
963
964 item = strndup(word, l);
965 if (!item)
966 return -ENOMEM12;
967
968 switch (word[0]) {
969
970 case 's':
971 seqnum_id_set = true1;
972 k = sd_id128_from_string(item+2, &seqnum_id);
973 break;
974
975 case 'i':
976 seqnum_set = true1;
977 if (sscanf(item+2, "%llx", &seqnum) != 1)
978 k = -EINVAL22;
979 break;
980
981 case 'b':
982 boot_id_set = true1;
983 k = sd_id128_from_string(item+2, &boot_id);
984 break;
985
986 case 'm':
987 monotonic_set = true1;
988 if (sscanf(item+2, "%llx", &monotonic) != 1)
989 k = -EINVAL22;
990 break;
991
992 case 't':
993 realtime_set = true1;
994 if (sscanf(item+2, "%llx", &realtime) != 1)
995 k = -EINVAL22;
996 break;
997
998 case 'x':
999 xor_hash_set = true1;
1000 if (sscanf(item+2, "%llx", &xor_hash) != 1)
1001 k = -EINVAL22;
1002 break;
1003 }
1004
1005 free(item);
1006
1007 if (k < 0)
1008 return k;
1009 }
1010
1011 if ((!seqnum_set || !seqnum_id_set) &&
1012 (!monotonic_set || !boot_id_set) &&
1013 !realtime_set)
1014 return -EINVAL22;
1015
1016 reset_location(j);
1017
1018 j->current_location.type = LOCATION_SEEK;
1019
1020 if (realtime_set) {
1021 j->current_location.realtime = (uint64_t) realtime;
1022 j->current_location.realtime_set = true1;
1023 }
1024
1025 if (seqnum_set && seqnum_id_set) {
1026 j->current_location.seqnum = (uint64_t) seqnum;
1027 j->current_location.seqnum_id = seqnum_id;
1028 j->current_location.seqnum_set = true1;
1029 }
1030
1031 if (monotonic_set && boot_id_set) {
1032 j->current_location.monotonic = (uint64_t) monotonic;
1033 j->current_location.boot_id = boot_id;
1034 j->current_location.monotonic_set = true1;
1035 }
1036
1037 if (xor_hash_set) {
1038 j->current_location.xor_hash = (uint64_t) xor_hash;
1039 j->current_location.xor_hash_set = true1;
1040 }
1041
1042 return 0;
1043}
1044
1045_public___attribute__ ((visibility("default"))) int sd_journal_test_cursor(sd_journal *j, const char *cursor) {
1046 int r;
1047 Object *o;
1048
1049 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1049
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1050 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 1050
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
1051 assert_return(!isempty(cursor), -EINVAL)do { if (!(((__builtin_expect(!!(!isempty(cursor)),1))) ? (1)
: (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, ("!isempty(cursor)"
), "../src/journal/sd-journal.c", 1051, __PRETTY_FUNCTION__),
0))) return (-22); } while (0);
1052
1053 if (!j->current_file || j->current_file->current_offset <= 0)
1054 return -EADDRNOTAVAIL99;
1055
1056 r = journal_file_move_to_object(j->current_file, OBJECT_ENTRY, j->current_file->current_offset, &o);
1057 if (r < 0)
1058 return r;
1059
1060 for (;;) {
1061 _cleanup_free___attribute__((cleanup(freep))) char *item = NULL((void*)0);
1062 unsigned long long ll;
1063 sd_id128_t id;
1064 int k = 0;
1065
1066 r = extract_first_word(&cursor, &item, ";", EXTRACT_DONT_COALESCE_SEPARATORS);
1067 if (r < 0)
1068 return r;
1069
1070 if (r == 0)
1071 break;
1072
1073 if (strlen(item) < 2 || item[1] != '=')
1074 return -EINVAL22;
1075
1076 switch (item[0]) {
1077
1078 case 's':
1079 k = sd_id128_from_string(item+2, &id);
1080 if (k < 0)
1081 return k;
1082 if (!sd_id128_equal(id, j->current_file->header->seqnum_id))
1083 return 0;
1084 break;
1085
1086 case 'i':
1087 if (sscanf(item+2, "%llx", &ll) != 1)
1088 return -EINVAL22;
1089 if (ll != le64toh(o->entry.seqnum))
1090 return 0;
1091 break;
1092
1093 case 'b':
1094 k = sd_id128_from_string(item+2, &id);
1095 if (k < 0)
1096 return k;
1097 if (!sd_id128_equal(id, o->entry.boot_id))
1098 return 0;
1099 break;
1100
1101 case 'm':
1102 if (sscanf(item+2, "%llx", &ll) != 1)
1103 return -EINVAL22;
1104 if (ll != le64toh(o->entry.monotonic))
1105 return 0;
1106 break;
1107
1108 case 't':
1109 if (sscanf(item+2, "%llx", &ll) != 1)
1110 return -EINVAL22;
1111 if (ll != le64toh(o->entry.realtime))
1112 return 0;
1113 break;
1114
1115 case 'x':
1116 if (sscanf(item+2, "%llx", &ll) != 1)
1117 return -EINVAL22;
1118 if (ll != le64toh(o->entry.xor_hash))
1119 return 0;
1120 break;
1121 }
1122 }
1123
1124 return 1;
1125}
1126
1127_public___attribute__ ((visibility("default"))) int sd_journal_seek_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t usec) {
1128 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1128
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1129 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 1129
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
1130
1131 reset_location(j);
1132 j->current_location.type = LOCATION_SEEK;
1133 j->current_location.boot_id = boot_id;
1134 j->current_location.monotonic = usec;
1135 j->current_location.monotonic_set = true1;
1136
1137 return 0;
1138}
1139
1140_public___attribute__ ((visibility("default"))) int sd_journal_seek_realtime_usec(sd_journal *j, uint64_t usec) {
1141 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1141
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1142 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 1142
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
1143
1144 reset_location(j);
1145 j->current_location.type = LOCATION_SEEK;
1146 j->current_location.realtime = usec;
1147 j->current_location.realtime_set = true1;
1148
1149 return 0;
1150}
1151
1152_public___attribute__ ((visibility("default"))) int sd_journal_seek_head(sd_journal *j) {
1153 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1153
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1154 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 1154
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
1155
1156 reset_location(j);
1157 j->current_location.type = LOCATION_HEAD;
1158
1159 return 0;
1160}
1161
1162_public___attribute__ ((visibility("default"))) int sd_journal_seek_tail(sd_journal *j) {
1163 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1163
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1164 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 1164
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
1165
1166 reset_location(j);
1167 j->current_location.type = LOCATION_TAIL;
1168
1169 return 0;
1170}
1171
1172static void check_network(sd_journal *j, int fd) {
1173 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1173
, __PRETTY_FUNCTION__); } while (0);
1174
1175 if (j->on_network)
1176 return;
1177
1178 j->on_network = fd_is_network_fs(fd);
1179}
1180
1181static bool_Bool file_has_type_prefix(const char *prefix, const char *filename) {
1182 const char *full, *tilded, *atted;
1183
1184 full = strjoina(prefix, ".journal")({ const char *_appendees_[] = { prefix, ".journal" }; char *
_d_, *_p_; size_t _len_ = 0; size_t _i_; for (_i_ = 0; _i_ <
__extension__ (__builtin_choose_expr( !__builtin_types_compatible_p
(typeof(_appendees_), typeof(&*(_appendees_))), sizeof(_appendees_
)/sizeof((_appendees_)[0]), ((void)0))) && _appendees_
[_i_]; _i_++) _len_ += strlen(_appendees_[_i_]); _p_ = _d_ = __builtin_alloca
(_len_ + 1); for (_i_ = 0; _i_ < __extension__ (__builtin_choose_expr
( !__builtin_types_compatible_p(typeof(_appendees_), typeof(&
*(_appendees_))), sizeof(_appendees_)/sizeof((_appendees_)[0]
), ((void)0))) && _appendees_[_i_]; _i_++) _p_ = stpcpy
(_p_, _appendees_[_i_]); *_p_ = 0; _d_; });
1185 tilded = strjoina(full, "~")({ const char *_appendees_[] = { full, "~" }; char *_d_, *_p_
; size_t _len_ = 0; size_t _i_; for (_i_ = 0; _i_ < __extension__
(__builtin_choose_expr( !__builtin_types_compatible_p(typeof
(_appendees_), typeof(&*(_appendees_))), sizeof(_appendees_
)/sizeof((_appendees_)[0]), ((void)0))) && _appendees_
[_i_]; _i_++) _len_ += strlen(_appendees_[_i_]); _p_ = _d_ = __builtin_alloca
(_len_ + 1); for (_i_ = 0; _i_ < __extension__ (__builtin_choose_expr
( !__builtin_types_compatible_p(typeof(_appendees_), typeof(&
*(_appendees_))), sizeof(_appendees_)/sizeof((_appendees_)[0]
), ((void)0))) && _appendees_[_i_]; _i_++) _p_ = stpcpy
(_p_, _appendees_[_i_]); *_p_ = 0; _d_; });
1186 atted = strjoina(prefix, "@")({ const char *_appendees_[] = { prefix, "@" }; char *_d_, *_p_
; size_t _len_ = 0; size_t _i_; for (_i_ = 0; _i_ < __extension__
(__builtin_choose_expr( !__builtin_types_compatible_p(typeof
(_appendees_), typeof(&*(_appendees_))), sizeof(_appendees_
)/sizeof((_appendees_)[0]), ((void)0))) && _appendees_
[_i_]; _i_++) _len_ += strlen(_appendees_[_i_]); _p_ = _d_ = __builtin_alloca
(_len_ + 1); for (_i_ = 0; _i_ < __extension__ (__builtin_choose_expr
( !__builtin_types_compatible_p(typeof(_appendees_), typeof(&
*(_appendees_))), sizeof(_appendees_)/sizeof((_appendees_)[0]
), ((void)0))) && _appendees_[_i_]; _i_++) _p_ = stpcpy
(_p_, _appendees_[_i_]); *_p_ = 0; _d_; });
1187
1188 return streq(filename, full)(strcmp((filename),(full)) == 0) ||
1189 streq(filename, tilded)(strcmp((filename),(tilded)) == 0) ||
1190 startswith(filename, atted);
1191}
1192
1193static bool_Bool file_type_wanted(int flags, const char *filename) {
1194 assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/journal/sd-journal.c"
, 1194, __PRETTY_FUNCTION__); } while (0);
1195
1196 if (!endswith(filename, ".journal") && !endswith(filename, ".journal~"))
1197 return false0;
1198
1199 /* no flags set → every type is OK */
1200 if (!(flags & (SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER)))
1201 return true1;
1202
1203 if (flags & SD_JOURNAL_SYSTEM && file_has_type_prefix("system", filename))
1204 return true1;
1205
1206 if (flags & SD_JOURNAL_CURRENT_USER) {
1207 char prefix[5 + DECIMAL_STR_MAX(uid_t)(2+(sizeof(uid_t) <= 1 ? 3 : sizeof(uid_t) <= 2 ? 5 : sizeof
(uid_t) <= 4 ? 10 : sizeof(uid_t) <= 8 ? 20 : sizeof(int
[-2*(sizeof(uid_t) > 8)]))) + 1];
1208
1209 xsprintf(prefix, "user-"UID_FMT, getuid())do { if ((__builtin_expect(!!(!(((size_t) snprintf(prefix, __extension__
(__builtin_choose_expr( !__builtin_types_compatible_p(typeof
(prefix), typeof(&*(prefix))), sizeof(prefix)/sizeof((prefix
)[0]), ((void)0))), "user-""%" "u", getuid()) < (__extension__
(__builtin_choose_expr( !__builtin_types_compatible_p(typeof
(prefix), typeof(&*(prefix))), sizeof(prefix)/sizeof((prefix
)[0]), ((void)0))))))),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD
, ("xsprintf: " "prefix" "[] must be big enough"), "../src/journal/sd-journal.c"
, 1209, __PRETTY_FUNCTION__); } while (0);
1210
1211 if (file_has_type_prefix(prefix, filename))
1212 return true1;
1213 }
1214
1215 return false0;
1216}
1217
1218static bool_Bool path_has_prefix(sd_journal *j, const char *path, const char *prefix) {
1219 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1219
, __PRETTY_FUNCTION__); } while (0);
1220 assert(path)do { if ((__builtin_expect(!!(!(path)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("path"), "../src/journal/sd-journal.c", 1220
, __PRETTY_FUNCTION__); } while (0);
1221 assert(prefix)do { if ((__builtin_expect(!!(!(prefix)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("prefix"), "../src/journal/sd-journal.c"
, 1221, __PRETTY_FUNCTION__); } while (0);
1222
1223 if (j->toplevel_fd >= 0)
1224 return false0;
1225
1226 return path_startswith(path, prefix);
1227}
1228
1229static void track_file_disposition(sd_journal *j, JournalFile *f) {
1230 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1230
, __PRETTY_FUNCTION__); } while (0);
1231 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/journal/sd-journal.c", 1231
, __PRETTY_FUNCTION__); } while (0);
1232
1233 if (!j->has_runtime_files && path_has_prefix(j, f->path, "/run"))
1234 j->has_runtime_files = true1;
1235 else if (!j->has_persistent_files && path_has_prefix(j, f->path, "/var"))
1236 j->has_persistent_files = true1;
1237}
1238
1239static const char *skip_slash(const char *p) {
1240
1241 if (!p)
1242 return NULL((void*)0);
1243
1244 while (*p == '/')
1245 p++;
1246
1247 return p;
1248}
1249
1250static int add_any_file(
1251 sd_journal *j,
1252 int fd,
1253 const char *path) {
1254
1255 bool_Bool close_fd = false0;
1256 JournalFile *f;
1257 struct stat st;
1258 int r, k;
1259
1260 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1260
, __PRETTY_FUNCTION__); } while (0);
1261 assert(fd >= 0 || path)do { if ((__builtin_expect(!!(!(fd >= 0 || path)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("fd >= 0 || path"), "../src/journal/sd-journal.c"
, 1261, __PRETTY_FUNCTION__); } while (0);
1262
1263 if (fd < 0) {
1264 if (j->toplevel_fd >= 0)
1265 /* If there's a top-level fd defined make the path relative, explicitly, since otherwise
1266 * openat() ignores the first argument. */
1267
1268 fd = openat(j->toplevel_fd, skip_slash(path), O_RDONLY00|O_CLOEXEC02000000|O_NONBLOCK04000);
1269 else
1270 fd = open(path, O_RDONLY00|O_CLOEXEC02000000|O_NONBLOCK04000);
1271 if (fd < 0) {
1272 r = log_debug_errno(errno, "Failed to open journal file %s: %m", path)({ int _level = ((7)), _e = (((*__errno_location ()))), _realm
= (LOG_REALM_SYSTEMD); (log_get_max_level_realm(_realm) >=
((_level) & 0x07)) ? log_internal_realm(((_realm) <<
10 | (_level)), _e, "../src/journal/sd-journal.c", 1272, __func__
, "Failed to open journal file %s: %m", path) : -abs(_e); });
1273 goto finish;
1274 }
1275
1276 close_fd = true1;
1277
1278 r = fd_nonblock(fd, false0);
1279 if (r < 0) {
1280 r = log_debug_errno(errno, "Failed to turn off O_NONBLOCK for %s: %m", path)({ int _level = ((7)), _e = (((*__errno_location ()))), _realm
= (LOG_REALM_SYSTEMD); (log_get_max_level_realm(_realm) >=
((_level) & 0x07)) ? log_internal_realm(((_realm) <<
10 | (_level)), _e, "../src/journal/sd-journal.c", 1280, __func__
, "Failed to turn off O_NONBLOCK for %s: %m", path) : -abs(_e
); });
1281 goto finish;
1282 }
1283 }
1284
1285 if (fstat(fd, &st) < 0) {
1286 r = log_debug_errno(errno, "Failed to fstat file '%s': %m", path)({ int _level = ((7)), _e = (((*__errno_location ()))), _realm
= (LOG_REALM_SYSTEMD); (log_get_max_level_realm(_realm) >=
((_level) & 0x07)) ? log_internal_realm(((_realm) <<
10 | (_level)), _e, "../src/journal/sd-journal.c", 1286, __func__
, "Failed to fstat file '%s': %m", path) : -abs(_e); });
1287 goto finish;
1288 }
1289
1290 r = stat_verify_regular(&st);
1291 if (r < 0) {
1292 log_debug_errno(r, "Refusing to open '%s', as it is not a regular file.", path)({ int _level = ((7)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1292, __func__, "Refusing to open '%s', as it is not a regular file."
, path) : -abs(_e); });
1293 goto finish;
1294 }
1295
1296 f = ordered_hashmap_get(j->files, path);
1297 if (f) {
1298 if (f->last_stat.st_dev == st.st_dev &&
1299 f->last_stat.st_ino == st.st_ino) {
1300
1301 /* We already track this file, under the same path and with the same device/inode numbers, it's
1302 * hence really the same. Mark this file as seen in this generation. This is used to GC old
1303 * files in process_q_overflow() to detect journal files that are still there and discern them
1304 * from those which are gone. */
1305
1306 f->last_seen_generation = j->generation;
1307 r = 0;
1308 goto finish;
1309 }
1310
1311 /* So we tracked a file under this name, but it has a different inode/device. In that case, it got
1312 * replaced (probably due to rotation?), let's drop it hence from our list. */
1313 remove_file_real(j, f);
1314 f = NULL((void*)0);
1315 }
1316
1317 if (ordered_hashmap_size(j->files) >= JOURNAL_FILES_MAX7168) {
1318 log_debug("Too many open journal files, not adding %s.", path)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1318, __func__, "Too many open journal files, not adding %s."
, path) : -abs(_e); });
1319 r = -ETOOMANYREFS109;
1320 goto finish;
1321 }
1322
1323 r = journal_file_open(fd, path, O_RDONLY00, 0, false0, 0, false0, NULL((void*)0), j->mmap, NULL((void*)0), NULL((void*)0), &f);
1324 if (r < 0) {
1325 log_debug_errno(r, "Failed to open journal file %s: %m", path)({ int _level = ((7)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1325, __func__, "Failed to open journal file %s: %m"
, path) : -abs(_e); });
1326 goto finish;
1327 }
1328
1329 /* journal_file_dump(f); */
1330
1331 r = ordered_hashmap_put(j->files, f->path, f);
1332 if (r < 0) {
1333 f->close_fd = false0; /* make sure journal_file_close() doesn't close the caller's fd (or our own). We'll let the caller do that, or ourselves */
1334 (void) journal_file_close(f);
1335 goto finish;
1336 }
1337
1338 close_fd = false0; /* the fd is now owned by the JournalFile object */
1339
1340 f->last_seen_generation = j->generation;
1341
1342 track_file_disposition(j, f);
1343 check_network(j, f->fd);
1344
1345 j->current_invalidate_counter++;
1346
1347 log_debug("File %s added.", f->path)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1347, __func__, "File %s added."
, f->path) : -abs(_e); });
1348
1349 r = 0;
1350
1351finish:
1352 if (close_fd)
1353 safe_close(fd);
1354
1355 if (r < 0) {
1356 k = journal_put_error(j, r, path);
1357 if (k < 0)
1358 return k;
1359 }
1360
1361 return r;
1362}
1363
1364static int add_file_by_name(
1365 sd_journal *j,
1366 const char *prefix,
1367 const char *filename) {
1368
1369 const char *path;
1370
1371 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1371
, __PRETTY_FUNCTION__); } while (0);
1372 assert(prefix)do { if ((__builtin_expect(!!(!(prefix)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("prefix"), "../src/journal/sd-journal.c"
, 1372, __PRETTY_FUNCTION__); } while (0);
1373 assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/journal/sd-journal.c"
, 1373, __PRETTY_FUNCTION__); } while (0);
1374
1375 if (j->no_new_files)
1376 return 0;
1377
1378 if (!file_type_wanted(j->flags, filename))
1379 return 0;
1380
1381 path = strjoina(prefix, "/", filename)({ const char *_appendees_[] = { prefix, "/", filename }; char
*_d_, *_p_; size_t _len_ = 0; size_t _i_; for (_i_ = 0; _i_ <
__extension__ (__builtin_choose_expr( !__builtin_types_compatible_p
(typeof(_appendees_), typeof(&*(_appendees_))), sizeof(_appendees_
)/sizeof((_appendees_)[0]), ((void)0))) && _appendees_
[_i_]; _i_++) _len_ += strlen(_appendees_[_i_]); _p_ = _d_ = __builtin_alloca
(_len_ + 1); for (_i_ = 0; _i_ < __extension__ (__builtin_choose_expr
( !__builtin_types_compatible_p(typeof(_appendees_), typeof(&
*(_appendees_))), sizeof(_appendees_)/sizeof((_appendees_)[0]
), ((void)0))) && _appendees_[_i_]; _i_++) _p_ = stpcpy
(_p_, _appendees_[_i_]); *_p_ = 0; _d_; });
1382 return add_any_file(j, -1, path);
1383}
1384
1385static void remove_file_by_name(
1386 sd_journal *j,
1387 const char *prefix,
1388 const char *filename) {
1389
1390 const char *path;
1391 JournalFile *f;
1392
1393 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1393
, __PRETTY_FUNCTION__); } while (0);
1394 assert(prefix)do { if ((__builtin_expect(!!(!(prefix)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("prefix"), "../src/journal/sd-journal.c"
, 1394, __PRETTY_FUNCTION__); } while (0);
1395 assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/journal/sd-journal.c"
, 1395, __PRETTY_FUNCTION__); } while (0);
1396
1397 path = strjoina(prefix, "/", filename)({ const char *_appendees_[] = { prefix, "/", filename }; char
*_d_, *_p_; size_t _len_ = 0; size_t _i_; for (_i_ = 0; _i_ <
__extension__ (__builtin_choose_expr( !__builtin_types_compatible_p
(typeof(_appendees_), typeof(&*(_appendees_))), sizeof(_appendees_
)/sizeof((_appendees_)[0]), ((void)0))) && _appendees_
[_i_]; _i_++) _len_ += strlen(_appendees_[_i_]); _p_ = _d_ = __builtin_alloca
(_len_ + 1); for (_i_ = 0; _i_ < __extension__ (__builtin_choose_expr
( !__builtin_types_compatible_p(typeof(_appendees_), typeof(&
*(_appendees_))), sizeof(_appendees_)/sizeof((_appendees_)[0]
), ((void)0))) && _appendees_[_i_]; _i_++) _p_ = stpcpy
(_p_, _appendees_[_i_]); *_p_ = 0; _d_; });
1398 f = ordered_hashmap_get(j->files, path);
1399 if (!f)
1400 return;
1401
1402 remove_file_real(j, f);
1403}
1404
1405static void remove_file_real(sd_journal *j, JournalFile *f) {
1406 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1406
, __PRETTY_FUNCTION__); } while (0);
1407 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/journal/sd-journal.c", 1407
, __PRETTY_FUNCTION__); } while (0);
1408
1409 (void) ordered_hashmap_remove(j->files, f->path);
1410
1411 log_debug("File %s removed.", f->path)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1411, __func__, "File %s removed."
, f->path) : -abs(_e); });
1412
1413 if (j->current_file == f) {
1414 j->current_file = NULL((void*)0);
1415 j->current_field = 0;
1416 }
1417
1418 if (j->unique_file == f) {
1419 /* Jump to the next unique_file or NULL if that one was last */
1420 j->unique_file = ordered_hashmap_next(j->files, j->unique_file->path);
1421 j->unique_offset = 0;
1422 if (!j->unique_file)
1423 j->unique_file_lost = true1;
1424 }
1425
1426 if (j->fields_file == f) {
1427 j->fields_file = ordered_hashmap_next(j->files, j->fields_file->path);
1428 j->fields_offset = 0;
1429 if (!j->fields_file)
1430 j->fields_file_lost = true1;
1431 }
1432
1433 (void) journal_file_close(f);
1434
1435 j->current_invalidate_counter++;
1436}
1437
1438static int dirname_is_machine_id(const char *fn) {
1439 sd_id128_t id, machine;
1440 int r;
1441
1442 r = sd_id128_get_machine(&machine);
1443 if (r < 0)
1444 return r;
1445
1446 r = sd_id128_from_string(fn, &id);
1447 if (r < 0)
1448 return r;
1449
1450 return sd_id128_equal(id, machine);
1451}
1452
1453static bool_Bool dirent_is_journal_file(const struct dirent *de) {
1454 assert(de)do { if ((__builtin_expect(!!(!(de)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("de"), "../src/journal/sd-journal.c", 1454
, __PRETTY_FUNCTION__); } while (0);
1455
1456 if (!IN_SET(de->d_type, DT_REG, DT_LNK, DT_UNKNOWN)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){DT_REG, DT_LNK, DT_UNKNOWN})/sizeof(int)
]; switch(de->d_type) { case DT_REG: case DT_LNK: case DT_UNKNOWN
: _found = 1; break; default: break; } _found; }))
1457 return false0;
1458
1459 return endswith(de->d_name, ".journal") ||
1460 endswith(de->d_name, ".journal~");
1461}
1462
1463static bool_Bool dirent_is_id128_subdir(const struct dirent *de) {
1464 assert(de)do { if ((__builtin_expect(!!(!(de)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("de"), "../src/journal/sd-journal.c", 1464
, __PRETTY_FUNCTION__); } while (0);
1465
1466 if (!IN_SET(de->d_type, DT_DIR, DT_LNK, DT_UNKNOWN)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){DT_DIR, DT_LNK, DT_UNKNOWN})/sizeof(int)
]; switch(de->d_type) { case DT_DIR: case DT_LNK: case DT_UNKNOWN
: _found = 1; break; default: break; } _found; }))
1467 return false0;
1468
1469 return id128_is_valid(de->d_name);
1470}
1471
1472static int directory_open(sd_journal *j, const char *path, DIR **ret) {
1473 DIR *d;
1474
1475 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1475
, __PRETTY_FUNCTION__); } while (0);
1476 assert(path)do { if ((__builtin_expect(!!(!(path)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("path"), "../src/journal/sd-journal.c", 1476
, __PRETTY_FUNCTION__); } while (0);
1477 assert(ret)do { if ((__builtin_expect(!!(!(ret)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/journal/sd-journal.c", 1477
, __PRETTY_FUNCTION__); } while (0);
1478
1479 if (j->toplevel_fd < 0)
1480 d = opendir(path);
1481 else
1482 /* Open the specified directory relative to the toplevel fd. Enforce that the path specified is
1483 * relative, by dropping the initial slash */
1484 d = xopendirat(j->toplevel_fd, skip_slash(path), 0);
1485 if (!d)
1486 return -errno(*__errno_location ());
1487
1488 *ret = d;
1489 return 0;
1490}
1491
1492static int add_directory(sd_journal *j, const char *prefix, const char *dirname);
1493
1494static void directory_enumerate(sd_journal *j, Directory *m, DIR *d) {
1495 struct dirent *de;
1496
1497 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1497
, __PRETTY_FUNCTION__); } while (0);
1498 assert(m)do { if ((__builtin_expect(!!(!(m)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("m"), "../src/journal/sd-journal.c", 1498
, __PRETTY_FUNCTION__); } while (0);
1499 assert(d)do { if ((__builtin_expect(!!(!(d)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("d"), "../src/journal/sd-journal.c", 1499
, __PRETTY_FUNCTION__); } while (0);
1500
1501 FOREACH_DIRENT_ALL(de, d, goto fail)for ((*__errno_location ()) = 0, de = readdir(d);; (*__errno_location
()) = 0, de = readdir(d)) if (!de) { if ((*__errno_location (
)) > 0) { goto fail; } break; } else {
1502
1503 if (dirent_is_journal_file(de))
1504 (void) add_file_by_name(j, m->path, de->d_name);
1505
1506 if (m->is_root && dirent_is_id128_subdir(de))
1507 (void) add_directory(j, m->path, de->d_name);
1508 }
1509
1510 return;
1511
1512fail:
1513 log_debug_errno(errno, "Failed to enumerate directory %s, ignoring: %m", m->path)({ int _level = ((7)), _e = (((*__errno_location ()))), _realm
= (LOG_REALM_SYSTEMD); (log_get_max_level_realm(_realm) >=
((_level) & 0x07)) ? log_internal_realm(((_realm) <<
10 | (_level)), _e, "../src/journal/sd-journal.c", 1513, __func__
, "Failed to enumerate directory %s, ignoring: %m", m->path
) : -abs(_e); });
1514}
1515
1516static void directory_watch(sd_journal *j, Directory *m, int fd, uint32_t mask) {
1517 int r;
1518
1519 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1519
, __PRETTY_FUNCTION__); } while (0);
1520 assert(m)do { if ((__builtin_expect(!!(!(m)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("m"), "../src/journal/sd-journal.c", 1520
, __PRETTY_FUNCTION__); } while (0);
1521 assert(fd >= 0)do { if ((__builtin_expect(!!(!(fd >= 0)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("fd >= 0"), "../src/journal/sd-journal.c"
, 1521, __PRETTY_FUNCTION__); } while (0);
1522
1523 /* Watch this directory if that's enabled and if it not being watched yet. */
1524
1525 if (m->wd > 0) /* Already have a watch? */
1526 return;
1527 if (j->inotify_fd < 0) /* Not watching at all? */
1528 return;
1529
1530 m->wd = inotify_add_watch_fd(j->inotify_fd, fd, mask);
1531 if (m->wd < 0) {
1532 log_debug_errno(errno, "Failed to watch journal directory '%s', ignoring: %m", m->path)({ int _level = ((7)), _e = (((*__errno_location ()))), _realm
= (LOG_REALM_SYSTEMD); (log_get_max_level_realm(_realm) >=
((_level) & 0x07)) ? log_internal_realm(((_realm) <<
10 | (_level)), _e, "../src/journal/sd-journal.c", 1532, __func__
, "Failed to watch journal directory '%s', ignoring: %m", m->
path) : -abs(_e); });
1533 return;
1534 }
1535
1536 r = hashmap_put(j->directories_by_wd, INT_TO_PTR(m->wd)((void *) ((intptr_t) (m->wd))), m);
1537 if (r == -EEXIST17)
1538 log_debug_errno(r, "Directory '%s' already being watched under a different path, ignoring: %m", m->path)({ int _level = ((7)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1538, __func__, "Directory '%s' already being watched under a different path, ignoring: %m"
, m->path) : -abs(_e); });
1539 if (r < 0) {
1540 log_debug_errno(r, "Failed to add watch for journal directory '%s' to hashmap, ignoring: %m", m->path)({ int _level = ((7)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1540, __func__, "Failed to add watch for journal directory '%s' to hashmap, ignoring: %m"
, m->path) : -abs(_e); });
1541 (void) inotify_rm_watch(j->inotify_fd, m->wd);
1542 m->wd = -1;
1543 }
1544}
1545
1546static int add_directory(sd_journal *j, const char *prefix, const char *dirname) {
1547 _cleanup_free___attribute__((cleanup(freep))) char *path = NULL((void*)0);
1548 _cleanup_closedir___attribute__((cleanup(closedirp))) DIR *d = NULL((void*)0);
1549 Directory *m;
1550 int r, k;
1551
1552 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1552
, __PRETTY_FUNCTION__); } while (0);
1553 assert(prefix)do { if ((__builtin_expect(!!(!(prefix)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("prefix"), "../src/journal/sd-journal.c"
, 1553, __PRETTY_FUNCTION__); } while (0);
1554
1555 /* Adds a journal file directory to watch. If the directory is already tracked this updates the inotify watch
1556 * and reenumerates directory contents */
1557
1558 if (dirname)
1559 path = strjoin(prefix, "/", dirname)strjoin_real((prefix), "/", dirname, ((void*)0));
1560 else
1561 path = strdup(prefix);
1562 if (!path) {
1563 r = -ENOMEM12;
1564 goto fail;
1565 }
1566
1567 log_debug("Considering directory '%s'.", path)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1567, __func__, "Considering directory '%s'."
, path) : -abs(_e); });
1568
1569 /* We consider everything local that is in a directory for the local machine ID, or that is stored in /run */
1570 if ((j->flags & SD_JOURNAL_LOCAL_ONLY) &&
1571 !((dirname && dirname_is_machine_id(dirname) > 0) || path_has_prefix(j, path, "/run")))
1572 return 0;
1573
1574 r = directory_open(j, path, &d);
1575 if (r < 0) {
1576 log_debug_errno(r, "Failed to open directory '%s': %m", path)({ int _level = ((7)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1576, __func__, "Failed to open directory '%s': %m"
, path) : -abs(_e); });
1577 goto fail;
1578 }
1579
1580 m = hashmap_get(j->directories_by_path, path);
1581 if (!m) {
1582 m = new0(Directory, 1)((Directory*) calloc((1), sizeof(Directory)));
1583 if (!m) {
1584 r = -ENOMEM12;
1585 goto fail;
1586 }
1587
1588 m->is_root = false0;
1589 m->path = path;
1590
1591 if (hashmap_put(j->directories_by_path, m->path, m) < 0) {
1592 free(m);
1593 r = -ENOMEM12;
1594 goto fail;
1595 }
1596
1597 path = NULL((void*)0); /* avoid freeing in cleanup */
1598 j->current_invalidate_counter++;
1599
1600 log_debug("Directory %s added.", m->path)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1600, __func__, "Directory %s added."
, m->path) : -abs(_e); });
1601
1602 } else if (m->is_root)
1603 return 0; /* Don't 'downgrade' from root directory */
1604
1605 m->last_seen_generation = j->generation;
1606
1607 directory_watch(j, m, dirfd(d),
1608 IN_CREATE0x00000100|IN_MOVED_TO0x00000080|IN_MODIFY0x00000002|IN_ATTRIB0x00000004|IN_DELETE0x00000200|
1609 IN_DELETE_SELF0x00000400|IN_MOVE_SELF0x00000800|IN_UNMOUNT0x00002000|IN_MOVED_FROM0x00000040|
1610 IN_ONLYDIR0x01000000);
1611
1612 if (!j->no_new_files)
1613 directory_enumerate(j, m, d);
1614
1615 check_network(j, dirfd(d));
1616
1617 return 0;
1618
1619fail:
1620 k = journal_put_error(j, r, path ?: prefix);
1621 if (k < 0)
1622 return k;
1623
1624 return r;
1625}
1626
1627static int add_root_directory(sd_journal *j, const char *p, bool_Bool missing_ok) {
1628
1629 _cleanup_closedir___attribute__((cleanup(closedirp))) DIR *d = NULL((void*)0);
1630 Directory *m;
1631 int r, k;
1632
1633 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1633
, __PRETTY_FUNCTION__); } while (0);
1634
1635 /* Adds a root directory to our set of directories to use. If the root directory is already in the set, we
1636 * update the inotify logic, and renumerate the directory entries. This call may hence be called to initially
1637 * populate the set, as well as to update it later. */
1638
1639 if (p) {
1640 /* If there's a path specified, use it. */
1641
1642 log_debug("Considering root directory '%s'.", p)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1642, __func__, "Considering root directory '%s'."
, p) : -abs(_e); });
1643
1644 if ((j->flags & SD_JOURNAL_RUNTIME_ONLY) &&
1645 !path_has_prefix(j, p, "/run"))
1646 return -EINVAL22;
1647
1648 if (j->prefix)
1649 p = strjoina(j->prefix, p)({ const char *_appendees_[] = { j->prefix, p }; char *_d_
, *_p_; size_t _len_ = 0; size_t _i_; for (_i_ = 0; _i_ < __extension__
(__builtin_choose_expr( !__builtin_types_compatible_p(typeof
(_appendees_), typeof(&*(_appendees_))), sizeof(_appendees_
)/sizeof((_appendees_)[0]), ((void)0))) && _appendees_
[_i_]; _i_++) _len_ += strlen(_appendees_[_i_]); _p_ = _d_ = __builtin_alloca
(_len_ + 1); for (_i_ = 0; _i_ < __extension__ (__builtin_choose_expr
( !__builtin_types_compatible_p(typeof(_appendees_), typeof(&
*(_appendees_))), sizeof(_appendees_)/sizeof((_appendees_)[0]
), ((void)0))) && _appendees_[_i_]; _i_++) _p_ = stpcpy
(_p_, _appendees_[_i_]); *_p_ = 0; _d_; });
1650
1651 r = directory_open(j, p, &d);
1652 if (r == -ENOENT2 && missing_ok)
1653 return 0;
1654 if (r < 0) {
1655 log_debug_errno(r, "Failed to open root directory %s: %m", p)({ int _level = ((7)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1655, __func__, "Failed to open root directory %s: %m"
, p) : -abs(_e); });
1656 goto fail;
1657 }
1658 } else {
1659 int dfd;
1660
1661 /* If there's no path specified, then we use the top-level fd itself. We duplicate the fd here, since
1662 * opendir() will take possession of the fd, and close it, which we don't want. */
1663
1664 p = "."; /* store this as "." in the directories hashmap */
1665
1666 dfd = fcntl(j->toplevel_fd, F_DUPFD_CLOEXEC1030, 3);
1667 if (dfd < 0) {
1668 r = -errno(*__errno_location ());
1669 goto fail;
1670 }
1671
1672 d = fdopendir(dfd);
1673 if (!d) {
1674 r = -errno(*__errno_location ());
1675 safe_close(dfd);
1676 goto fail;
1677 }
1678
1679 rewinddir(d);
1680 }
1681
1682 m = hashmap_get(j->directories_by_path, p);
1683 if (!m) {
1684 m = new0(Directory, 1)((Directory*) calloc((1), sizeof(Directory)));
1685 if (!m) {
1686 r = -ENOMEM12;
1687 goto fail;
1688 }
1689
1690 m->is_root = true1;
1691
1692 m->path = strdup(p);
1693 if (!m->path) {
1694 free(m);
1695 r = -ENOMEM12;
1696 goto fail;
1697 }
1698
1699 if (hashmap_put(j->directories_by_path, m->path, m) < 0) {
1700 free(m->path);
1701 free(m);
1702 r = -ENOMEM12;
1703 goto fail;
1704 }
1705
1706 j->current_invalidate_counter++;
1707
1708 log_debug("Root directory %s added.", m->path)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1708, __func__, "Root directory %s added."
, m->path) : -abs(_e); });
1709
1710 } else if (!m->is_root)
1711 return 0;
1712
1713 directory_watch(j, m, dirfd(d),
1714 IN_CREATE0x00000100|IN_MOVED_TO0x00000080|IN_MODIFY0x00000002|IN_ATTRIB0x00000004|IN_DELETE0x00000200|
1715 IN_ONLYDIR0x01000000);
1716
1717 if (!j->no_new_files)
1718 directory_enumerate(j, m, d);
1719
1720 check_network(j, dirfd(d));
1721
1722 return 0;
1723
1724fail:
1725 k = journal_put_error(j, r, p);
1726 if (k < 0)
1727 return k;
1728
1729 return r;
1730}
1731
1732static void remove_directory(sd_journal *j, Directory *d) {
1733 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1733
, __PRETTY_FUNCTION__); } while (0);
1734
1735 if (d->wd > 0) {
1736 hashmap_remove(j->directories_by_wd, INT_TO_PTR(d->wd)((void *) ((intptr_t) (d->wd))));
1737
1738 if (j->inotify_fd >= 0)
1739 inotify_rm_watch(j->inotify_fd, d->wd);
1740 }
1741
1742 hashmap_remove(j->directories_by_path, d->path);
1743
1744 if (d->is_root)
1745 log_debug("Root directory %s removed.", d->path)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1745, __func__, "Root directory %s removed."
, d->path) : -abs(_e); });
1746 else
1747 log_debug("Directory %s removed.", d->path)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 1747, __func__, "Directory %s removed."
, d->path) : -abs(_e); });
1748
1749 free(d->path);
1750 free(d);
1751}
1752
1753static int add_search_paths(sd_journal *j) {
1754
1755 static const char search_paths[] =
1756 "/run/log/journal\0"
1757 "/var/log/journal\0";
1758 const char *p;
1759
1760 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1760
, __PRETTY_FUNCTION__); } while (0);
1761
1762 /* We ignore most errors here, since the idea is to only open
1763 * what's actually accessible, and ignore the rest. */
1764
1765 NULSTR_FOREACH(p, search_paths)for ((p) = (search_paths); (p) && *(p); (p) = strchr(
(p), 0)+1)
1766 (void) add_root_directory(j, p, true1);
1767
1768 if (!(j->flags & SD_JOURNAL_LOCAL_ONLY))
1769 (void) add_root_directory(j, "/var/log/journal/remote", true1);
1770
1771 return 0;
1772}
1773
1774static int add_current_paths(sd_journal *j) {
1775 Iterator i;
1776 JournalFile *f;
1777
1778 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1778
, __PRETTY_FUNCTION__); } while (0);
1779 assert(j->no_new_files)do { if ((__builtin_expect(!!(!(j->no_new_files)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j->no_new_files"), "../src/journal/sd-journal.c"
, 1779, __PRETTY_FUNCTION__); } while (0);
1780
1781 /* Simply adds all directories for files we have open as directories. We don't expect errors here, so we
1782 * treat them as fatal. */
1783
1784 ORDERED_HASHMAP_FOREACH(f, j->files, i)for ((i) = ((Iterator) { .idx = ((2147483647 *2U +1U) - 1), .
next_key = ((void*)0) }); ordered_hashmap_iterate((j->files
), &(i), (void**)&(f), ((void*)0)); ) {
1785 _cleanup_free___attribute__((cleanup(freep))) char *dir;
1786 int r;
1787
1788 dir = dirname_malloc(f->path);
1789 if (!dir)
1790 return -ENOMEM12;
1791
1792 r = add_directory(j, dir, NULL((void*)0));
1793 if (r < 0)
1794 return r;
1795 }
1796
1797 return 0;
1798}
1799
1800static int allocate_inotify(sd_journal *j) {
1801 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 1801
, __PRETTY_FUNCTION__); } while (0);
1802
1803 if (j->inotify_fd < 0) {
1804 j->inotify_fd = inotify_init1(IN_NONBLOCKIN_NONBLOCK|IN_CLOEXECIN_CLOEXEC);
1805 if (j->inotify_fd < 0)
1806 return -errno(*__errno_location ());
1807 }
1808
1809 return hashmap_ensure_allocated(&j->directories_by_wd, NULL)internal_hashmap_ensure_allocated(&j->directories_by_wd
, ((void*)0) );
1810}
1811
1812static sd_journal *journal_new(int flags, const char *path) {
1813 _cleanup_(sd_journal_closep)__attribute__((cleanup(sd_journal_closep))) sd_journal *j = NULL((void*)0);
1814
1815 j = new0(sd_journal, 1)((sd_journal*) calloc((1), sizeof(sd_journal)));
14
←
Memory is allocated
→
1816 if (!j)
15
←
Assuming 'j' is non-null
→
16
←
Taking false branch
→
1817 return NULL((void*)0);
1818
1819 j->original_pid = getpid_cached();
1820 j->toplevel_fd = -1;
1821 j->inotify_fd = -1;
1822 j->flags = flags;
1823 j->data_threshold = DEFAULT_DATA_THRESHOLD(64*1024);
1824
1825 if (path
16.1
'path' is null
) {
17
←
Taking false branch
→
1826 char *t;
1827
1828 t = strdup(path);
1829 if (!t)
1830 return NULL((void*)0);
1831
1832 if (flags & SD_JOURNAL_OS_ROOT)
1833 j->prefix = t;
1834 else
1835 j->path = t;
1836 }
1837
1838 j->files = ordered_hashmap_new(&path_hash_ops)internal_ordered_hashmap_new(&path_hash_ops );
1839 if (!j->files)
18
←
Assuming field 'files' is non-null
→
19
←
Taking false branch
→
1840 return NULL((void*)0);
1841
1842 j->files_cache = ordered_hashmap_iterated_cache_new(j->files);
1843 j->directories_by_path = hashmap_new(&path_hash_ops)internal_hashmap_new(&path_hash_ops );
1844 j->mmap = mmap_cache_new();
1845 if (!j->files_cache || !j->directories_by_path || !j->mmap)
20
←
Assuming field 'files_cache' is non-null
→
21
←
Assuming field 'directories_by_path' is non-null
→
22
←
Assuming field 'mmap' is non-null
→
23
←
Taking false branch
→
1846 return NULL((void*)0);
1847
1848 return TAKE_PTR(j)({ typeof(j) _ptr_ = (j); (j) = ((void*)0); _ptr_; });
1849}
1850
1851#define OPEN_ALLOWED_FLAGS(SD_JOURNAL_LOCAL_ONLY | SD_JOURNAL_RUNTIME_ONLY | SD_JOURNAL_SYSTEM
| SD_JOURNAL_CURRENT_USER) \
1852 (SD_JOURNAL_LOCAL_ONLY | \
1853 SD_JOURNAL_RUNTIME_ONLY | \
1854 SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER)
1855
1856_public___attribute__ ((visibility("default"))) int sd_journal_open(sd_journal **ret, int flags) {
1857 _cleanup_(sd_journal_closep)__attribute__((cleanup(sd_journal_closep))) sd_journal *j = NULL((void*)0);
1858 int r;
1859
1860 assert_return(ret, -EINVAL)do { if (!(((__builtin_expect(!!(ret),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/journal/sd-journal.c", 1860
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1861 assert_return((flags & ~OPEN_ALLOWED_FLAGS) == 0, -EINVAL)do { if (!(((__builtin_expect(!!((flags & ~(SD_JOURNAL_LOCAL_ONLY
| SD_JOURNAL_RUNTIME_ONLY | SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER
)) == 0),1))) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD
, ("(flags & ~OPEN_ALLOWED_FLAGS) == 0"), "../src/journal/sd-journal.c"
, 1861, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1862
1863 j = journal_new(flags, NULL((void*)0));
1864 if (!j)
1865 return -ENOMEM12;
1866
1867 r = add_search_paths(j);
1868 if (r < 0)
1869 return r;
1870
1871 *ret = TAKE_PTR(j)({ typeof(j) _ptr_ = (j); (j) = ((void*)0); _ptr_; });
1872 return 0;
1873}
1874
1875#define OPEN_CONTAINER_ALLOWED_FLAGS(SD_JOURNAL_LOCAL_ONLY | SD_JOURNAL_SYSTEM) \
1876 (SD_JOURNAL_LOCAL_ONLY | SD_JOURNAL_SYSTEM)
1877
1878_public___attribute__ ((visibility("default"))) int sd_journal_open_container(sd_journal **ret, const char *machine, int flags) {
1879 _cleanup_free___attribute__((cleanup(freep))) char *root = NULL((void*)0), *class = NULL((void*)0);
1880 _cleanup_(sd_journal_closep)__attribute__((cleanup(sd_journal_closep))) sd_journal *j = NULL((void*)0);
1881 char *p;
1882 int r;
1883
1884 /* This is pretty much deprecated, people should use machined's OpenMachineRootDirectory() call instead in
1885 * combination with sd_journal_open_directory_fd(). */
1886
1887 assert_return(machine, -EINVAL)do { if (!(((__builtin_expect(!!(machine),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("machine"), "../src/journal/sd-journal.c"
, 1887, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1888 assert_return(ret, -EINVAL)do { if (!(((__builtin_expect(!!(ret),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/journal/sd-journal.c", 1888
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1889 assert_return((flags & ~OPEN_CONTAINER_ALLOWED_FLAGS) == 0, -EINVAL)do { if (!(((__builtin_expect(!!((flags & ~(SD_JOURNAL_LOCAL_ONLY
| SD_JOURNAL_SYSTEM)) == 0),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("(flags & ~OPEN_CONTAINER_ALLOWED_FLAGS) == 0"
), "../src/journal/sd-journal.c", 1889, __PRETTY_FUNCTION__),
0))) return (-22); } while (0);
1890 assert_return(machine_name_is_valid(machine), -EINVAL)do { if (!(((__builtin_expect(!!(hostname_is_valid(machine, 0
)),1))) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD
, ("machine_name_is_valid(machine)"), "../src/journal/sd-journal.c"
, 1890, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1891
1892 p = strjoina("/run/systemd/machines/", machine)({ const char *_appendees_[] = { "/run/systemd/machines/", machine
}; char *_d_, *_p_; size_t _len_ = 0; size_t _i_; for (_i_ =
0; _i_ < __extension__ (__builtin_choose_expr( !__builtin_types_compatible_p
(typeof(_appendees_), typeof(&*(_appendees_))), sizeof(_appendees_
)/sizeof((_appendees_)[0]), ((void)0))) && _appendees_
[_i_]; _i_++) _len_ += strlen(_appendees_[_i_]); _p_ = _d_ = __builtin_alloca
(_len_ + 1); for (_i_ = 0; _i_ < __extension__ (__builtin_choose_expr
( !__builtin_types_compatible_p(typeof(_appendees_), typeof(&
*(_appendees_))), sizeof(_appendees_)/sizeof((_appendees_)[0]
), ((void)0))) && _appendees_[_i_]; _i_++) _p_ = stpcpy
(_p_, _appendees_[_i_]); *_p_ = 0; _d_; });
1893 r = parse_env_file(NULL((void*)0), p, NEWLINE"\n\r", "ROOT", &root, "CLASS", &class, NULL((void*)0));
1894 if (r == -ENOENT2)
1895 return -EHOSTDOWN112;
1896 if (r < 0)
1897 return r;
1898 if (!root)
1899 return -ENODATA61;
1900
1901 if (!streq_ptr(class, "container"))
1902 return -EIO5;
1903
1904 j = journal_new(flags, root);
1905 if (!j)
1906 return -ENOMEM12;
1907
1908 r = add_search_paths(j);
1909 if (r < 0)
1910 return r;
1911
1912 *ret = TAKE_PTR(j)({ typeof(j) _ptr_ = (j); (j) = ((void*)0); _ptr_; });
1913 return 0;
1914}
1915
1916#define OPEN_DIRECTORY_ALLOWED_FLAGS(SD_JOURNAL_OS_ROOT | SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER
) \
1917 (SD_JOURNAL_OS_ROOT | \
1918 SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER )
1919
1920_public___attribute__ ((visibility("default"))) int sd_journal_open_directory(sd_journal **ret, const char *path, int flags) {
1921 _cleanup_(sd_journal_closep)__attribute__((cleanup(sd_journal_closep))) sd_journal *j = NULL((void*)0);
1922 int r;
1923
1924 assert_return(ret, -EINVAL)do { if (!(((__builtin_expect(!!(ret),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/journal/sd-journal.c", 1924
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1925 assert_return(path, -EINVAL)do { if (!(((__builtin_expect(!!(path),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("path"), "../src/journal/sd-journal.c", 1925
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1926 assert_return((flags & ~OPEN_DIRECTORY_ALLOWED_FLAGS) == 0, -EINVAL)do { if (!(((__builtin_expect(!!((flags & ~(SD_JOURNAL_OS_ROOT
| SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER )) == 0),1))) ?
(1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, ("(flags & ~OPEN_DIRECTORY_ALLOWED_FLAGS) == 0"
), "../src/journal/sd-journal.c", 1926, __PRETTY_FUNCTION__),
0))) return (-22); } while (0);
1927
1928 j = journal_new(flags, path);
1929 if (!j)
1930 return -ENOMEM12;
1931
1932 if (flags & SD_JOURNAL_OS_ROOT)
1933 r = add_search_paths(j);
1934 else
1935 r = add_root_directory(j, path, false0);
1936 if (r < 0)
1937 return r;
1938
1939 *ret = TAKE_PTR(j)({ typeof(j) _ptr_ = (j); (j) = ((void*)0); _ptr_; });
1940 return 0;
1941}
1942
1943_public___attribute__ ((visibility("default"))) int sd_journal_open_files(sd_journal **ret, const char **paths, int flags) {
1944 _cleanup_(sd_journal_closep)__attribute__((cleanup(sd_journal_closep))) sd_journal *j = NULL((void*)0);
1945 const char **path;
1946 int r;
1947
1948 assert_return(ret, -EINVAL)do { if (!(((__builtin_expect(!!(ret),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/journal/sd-journal.c", 1948
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1949 assert_return(flags == 0, -EINVAL)do { if (!(((__builtin_expect(!!(flags == 0),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("flags == 0"), "../src/journal/sd-journal.c"
, 1949, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1950
1951 j = journal_new(flags, NULL((void*)0));
1952 if (!j)
1953 return -ENOMEM12;
1954
1955 STRV_FOREACH(path, paths)for ((path) = (paths); (path) && *(path); (path)++) {
1956 r = add_any_file(j, -1, *path);
1957 if (r < 0)
1958 return r;
1959 }
1960
1961 j->no_new_files = true1;
1962
1963 *ret = TAKE_PTR(j)({ typeof(j) _ptr_ = (j); (j) = ((void*)0); _ptr_; });
1964 return 0;
1965}
1966
1967#define OPEN_DIRECTORY_FD_ALLOWED_FLAGS(SD_JOURNAL_OS_ROOT | SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER
) \
1968 (SD_JOURNAL_OS_ROOT | \
1969 SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER )
1970
1971_public___attribute__ ((visibility("default"))) int sd_journal_open_directory_fd(sd_journal **ret, int fd, int flags) {
1972 _cleanup_(sd_journal_closep)__attribute__((cleanup(sd_journal_closep))) sd_journal *j = NULL((void*)0);
1973 struct stat st;
1974 int r;
1975
1976 assert_return(ret, -EINVAL)do { if (!(((__builtin_expect(!!(ret),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/journal/sd-journal.c", 1976
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1977 assert_return(fd >= 0, -EBADF)do { if (!(((__builtin_expect(!!(fd >= 0),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("fd >= 0"), "../src/journal/sd-journal.c"
, 1977, __PRETTY_FUNCTION__), 0))) return (-9); } while (0);
1978 assert_return((flags & ~OPEN_DIRECTORY_FD_ALLOWED_FLAGS) == 0, -EINVAL)do { if (!(((__builtin_expect(!!((flags & ~(SD_JOURNAL_OS_ROOT
| SD_JOURNAL_SYSTEM | SD_JOURNAL_CURRENT_USER )) == 0),1))) ?
(1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, ("(flags & ~OPEN_DIRECTORY_FD_ALLOWED_FLAGS) == 0"
), "../src/journal/sd-journal.c", 1978, __PRETTY_FUNCTION__),
0))) return (-22); } while (0);
1979
1980 if (fstat(fd, &st) < 0)
1981 return -errno(*__errno_location ());
1982
1983 if (!S_ISDIR(st.st_mode)((((st.st_mode)) & 0170000) == (0040000)))
1984 return -EBADFD77;
1985
1986 j = journal_new(flags, NULL((void*)0));
1987 if (!j)
1988 return -ENOMEM12;
1989
1990 j->toplevel_fd = fd;
1991
1992 if (flags & SD_JOURNAL_OS_ROOT)
1993 r = add_search_paths(j);
1994 else
1995 r = add_root_directory(j, NULL((void*)0), false0);
1996 if (r < 0)
1997 return r;
1998
1999 *ret = TAKE_PTR(j)({ typeof(j) _ptr_ = (j); (j) = ((void*)0); _ptr_; });
2000 return 0;
2001}
2002
2003_public___attribute__ ((visibility("default"))) int sd_journal_open_files_fd(sd_journal **ret, int fds[], unsigned n_fds, int flags) {
2004 Iterator iterator;
2005 JournalFile *f;
2006 _cleanup_(sd_journal_closep)__attribute__((cleanup(sd_journal_closep))) sd_journal *j = NULL((void*)0);
2007 unsigned i;
2008 int r;
2009
2010 assert_return(ret, -EINVAL)do { if (!(((__builtin_expect(!!(ret),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/journal/sd-journal.c", 2010
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
1
Assuming 'ret' is non-null
→
2
←
'?' condition is true
→
3
←
Taking false branch
→
4
←
Loop condition is false. Exiting loop
→
2011 assert_return(n_fds > 0, -EBADF)do { if (!(((__builtin_expect(!!(n_fds > 0),1))) ? (1) : (
log_assert_failed_return_realm(LOG_REALM_SYSTEMD, ("n_fds > 0"
), "../src/journal/sd-journal.c", 2011, __PRETTY_FUNCTION__),
0))) return (-9); } while (0);
5
←
Assuming 'n_fds' is > 0
→
6
←
'?' condition is true
→
7
←
Taking false branch
→
8
←
Loop condition is false. Exiting loop
→
2012 assert_return(flags == 0, -EINVAL)do { if (!(((__builtin_expect(!!(flags == 0),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("flags == 0"), "../src/journal/sd-journal.c"
, 2012, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
9
←
Assuming 'flags' is equal to 0
→
10
←
'?' condition is true
→
11
←
Taking false branch
→
12
←
Loop condition is false. Exiting loop
→
2013
2014 j = journal_new(flags, NULL((void*)0));
13
←
Calling 'journal_new'
→
24
←
Returned allocated memory
→
2015 if (!j
24.1
'j' is non-null
)
25
←
Taking false branch
→
2016 return -ENOMEM12;
2017
2018 for (i = 0; i
25.1
'i' is < 'n_fds'
 < n_fds; i++) {
26
←
Loop condition is true. Entering loop body
→
2019 struct stat st;
2020
2021 if (fds[i] < 0) {
27
←
Assuming the condition is true
→
28
←
Taking true branch
→
2022 r = -EBADF9;
2023 goto fail;
29
←
Control jumps to line 2049
→
2024 }
2025
2026 if (fstat(fds[i], &st) < 0) {
2027 r = -errno(*__errno_location ());
2028 goto fail;
2029 }
2030
2031 r = stat_verify_regular(&st);
2032 if (r < 0)
2033 goto fail;
2034
2035 r = add_any_file(j, fds[i], NULL((void*)0));
2036 if (r < 0)
2037 goto fail;
2038 }
2039
2040 j->no_new_files = true1;
2041 j->no_inotify = true1;
2042
2043 *ret = TAKE_PTR(j)({ typeof(j) _ptr_ = (j); (j) = ((void*)0); _ptr_; });
2044 return 0;
2045
2046fail:
2047 /* If we fail, make sure we don't take possession of the files we managed to make use of successfully, and they
2048 * remain open */
2049 ORDERED_HASHMAP_FOREACH(f, j->files, iterator)for ((iterator) = ((Iterator) { .idx = ((2147483647 *2U +1U) -
1), .next_key = ((void*)0) }); ordered_hashmap_iterate((j->
files), &(iterator), (void**)&(f), ((void*)0)); )
30
←
Loop condition is false. Execution continues on line 2052
→
2050 f->close_fd = false0;
2051
2052 return r;
31
←
Potential leak of memory pointed to by 'j'
2053}
2054
2055_public___attribute__ ((visibility("default"))) void sd_journal_close(sd_journal *j) {
2056 Directory *d;
2057
2058 if (!j)
2059 return;
2060
2061 sd_journal_flush_matches(j);
2062
2063 ordered_hashmap_free_with_destructor(j->files, journal_file_close)({ ({ void *_item; while ((_item = ordered_hashmap_steal_first
(j->files))) journal_file_close(_item); }); ordered_hashmap_free
(j->files); });
2064 iterated_cache_free(j->files_cache);
2065
2066 while ((d = hashmap_first(j->directories_by_path)))
2067 remove_directory(j, d);
2068
2069 while ((d = hashmap_first(j->directories_by_wd)))
2070 remove_directory(j, d);
2071
2072 hashmap_free(j->directories_by_path);
2073 hashmap_free(j->directories_by_wd);
2074
2075 safe_close(j->inotify_fd);
2076
2077 if (j->mmap) {
2078 log_debug("mmap cache statistics: %u hit, %u miss", mmap_cache_get_hit(j->mmap), mmap_cache_get_missed(j->mmap))({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2078, __func__, "mmap cache statistics: %u hit, %u miss"
, mmap_cache_get_hit(j->mmap), mmap_cache_get_missed(j->
mmap)) : -abs(_e); });
2079 mmap_cache_unref(j->mmap);
2080 }
2081
2082 hashmap_free_free(j->errors);
2083
2084 free(j->path);
2085 free(j->prefix);
2086 free(j->unique_field);
2087 free(j->fields_buffer);
2088 free(j);
2089}
2090
2091_public___attribute__ ((visibility("default"))) int sd_journal_get_realtime_usec(sd_journal *j, uint64_t *ret) {
2092 Object *o;
2093 JournalFile *f;
2094 int r;
2095
2096 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2096
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2097 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2097
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2098 assert_return(ret, -EINVAL)do { if (!(((__builtin_expect(!!(ret),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/journal/sd-journal.c", 2098
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2099
2100 f = j->current_file;
2101 if (!f)
2102 return -EADDRNOTAVAIL99;
2103
2104 if (f->current_offset <= 0)
2105 return -EADDRNOTAVAIL99;
2106
2107 r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
2108 if (r < 0)
2109 return r;
2110
2111 *ret = le64toh(o->entry.realtime);
2112 return 0;
2113}
2114
2115_public___attribute__ ((visibility("default"))) int sd_journal_get_monotonic_usec(sd_journal *j, uint64_t *ret, sd_id128_t *ret_boot_id) {
2116 Object *o;
2117 JournalFile *f;
2118 int r;
2119 sd_id128_t id;
2120
2121 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2121
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2122 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2122
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2123
2124 f = j->current_file;
2125 if (!f)
2126 return -EADDRNOTAVAIL99;
2127
2128 if (f->current_offset <= 0)
2129 return -EADDRNOTAVAIL99;
2130
2131 r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
2132 if (r < 0)
2133 return r;
2134
2135 if (ret_boot_id)
2136 *ret_boot_id = o->entry.boot_id;
2137 else {
2138 r = sd_id128_get_boot(&id);
2139 if (r < 0)
2140 return r;
2141
2142 if (!sd_id128_equal(id, o->entry.boot_id))
2143 return -ESTALE116;
2144 }
2145
2146 if (ret)
2147 *ret = le64toh(o->entry.monotonic);
2148
2149 return 0;
2150}
2151
2152static bool_Bool field_is_valid(const char *field) {
2153 const char *p;
2154
2155 assert(field)do { if ((__builtin_expect(!!(!(field)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("field"), "../src/journal/sd-journal.c",
2155, __PRETTY_FUNCTION__); } while (0);
2156
2157 if (isempty(field))
2158 return false0;
2159
2160 if (startswith(field, "__"))
2161 return false0;
2162
2163 for (p = field; *p; p++) {
2164
2165 if (*p == '_')
2166 continue;
2167
2168 if (*p >= 'A' && *p <= 'Z')
2169 continue;
2170
2171 if (*p >= '0' && *p <= '9')
2172 continue;
2173
2174 return false0;
2175 }
2176
2177 return true1;
2178}
2179
2180_public___attribute__ ((visibility("default"))) int sd_journal_get_data(sd_journal *j, const char *field, const void **data, size_t *size) {
2181 JournalFile *f;
2182 uint64_t i, n;
2183 size_t field_length;
2184 int r;
2185 Object *o;
2186
2187 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2187
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2188 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2188
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2189 assert_return(field, -EINVAL)do { if (!(((__builtin_expect(!!(field),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("field"), "../src/journal/sd-journal.c",
2189, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2190 assert_return(data, -EINVAL)do { if (!(((__builtin_expect(!!(data),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/journal/sd-journal.c", 2190
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2191 assert_return(size, -EINVAL)do { if (!(((__builtin_expect(!!(size),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("size"), "../src/journal/sd-journal.c", 2191
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2192 assert_return(field_is_valid(field), -EINVAL)do { if (!(((__builtin_expect(!!(field_is_valid(field)),1))) ?
(1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, ("field_is_valid(field)"
), "../src/journal/sd-journal.c", 2192, __PRETTY_FUNCTION__),
0))) return (-22); } while (0);
2193
2194 f = j->current_file;
2195 if (!f)
2196 return -EADDRNOTAVAIL99;
2197
2198 if (f->current_offset <= 0)
2199 return -EADDRNOTAVAIL99;
2200
2201 r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
2202 if (r < 0)
2203 return r;
2204
2205 field_length = strlen(field);
2206
2207 n = journal_file_entry_n_items(o);
2208 for (i = 0; i < n; i++) {
2209 uint64_t p, l;
2210 le64_t le_hash;
2211 size_t t;
2212 int compression;
2213
2214 p = le64toh(o->entry.items[i].object_offset);
2215 le_hash = o->entry.items[i].hash;
2216 r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
2217 if (r < 0)
2218 return r;
2219
2220 if (le_hash != o->data.hash)
2221 return -EBADMSG74;
2222
2223 l = le64toh(o->object.size) - offsetof(Object, data.payload)__builtin_offsetof(Object, data.payload);
2224
2225 compression = o->object.flags & OBJECT_COMPRESSION_MASK(OBJECT_COMPRESSED_XZ | OBJECT_COMPRESSED_LZ4);
2226 if (compression) {
2227#if HAVE_XZ1 || HAVE_LZ41
2228 r = decompress_startswith(compression,
2229 o->data.payload, l,
2230 &f->compress_buffer, &f->compress_buffer_size,
2231 field, field_length, '=');
2232 if (r < 0)
2233 log_debug_errno(r, "Cannot decompress %s object of length %"PRIu64" at offset "OFSfmt": %m",({ int _level = ((7)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2234, __func__, "Cannot decompress %s object of length %"
"l" "u"" at offset ""%06""l" "x"": %m", object_compressed_to_string
(compression), l, p) : -abs(_e); })
2234 object_compressed_to_string(compression), l, p)({ int _level = ((7)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2234, __func__, "Cannot decompress %s object of length %"
"l" "u"" at offset ""%06""l" "x"": %m", object_compressed_to_string
(compression), l, p) : -abs(_e); });
2235 else if (r > 0) {
2236
2237 size_t rsize;
2238
2239 r = decompress_blob(compression,
2240 o->data.payload, l,
2241 &f->compress_buffer, &f->compress_buffer_size, &rsize,
2242 j->data_threshold);
2243 if (r < 0)
2244 return r;
2245
2246 *data = f->compress_buffer;
2247 *size = (size_t) rsize;
2248
2249 return 0;
2250 }
2251#else
2252 return -EPROTONOSUPPORT93;
2253#endif
2254 } else if (l >= field_length+1 &&
2255 memcmp(o->data.payload, field, field_length) == 0 &&
2256 o->data.payload[field_length] == '=') {
2257
2258 t = (size_t) l;
2259
2260 if ((uint64_t) t != l)
2261 return -E2BIG7;
2262
2263 *data = o->data.payload;
2264 *size = t;
2265
2266 return 0;
2267 }
2268
2269 r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
2270 if (r < 0)
2271 return r;
2272 }
2273
2274 return -ENOENT2;
2275}
2276
2277static int return_data(sd_journal *j, JournalFile *f, Object *o, const void **data, size_t *size) {
2278 size_t t;
2279 uint64_t l;
2280 int compression;
2281
2282 l = le64toh(o->object.size) - offsetof(Object, data.payload)__builtin_offsetof(Object, data.payload);
2283 t = (size_t) l;
2284
2285 /* We can't read objects larger than 4G on a 32bit machine */
2286 if ((uint64_t) t != l)
2287 return -E2BIG7;
2288
2289 compression = o->object.flags & OBJECT_COMPRESSION_MASK(OBJECT_COMPRESSED_XZ | OBJECT_COMPRESSED_LZ4);
2290 if (compression) {
2291#if HAVE_XZ1 || HAVE_LZ41
2292 size_t rsize;
2293 int r;
2294
2295 r = decompress_blob(compression,
2296 o->data.payload, l, &f->compress_buffer,
2297 &f->compress_buffer_size, &rsize, j->data_threshold);
2298 if (r < 0)
2299 return r;
2300
2301 *data = f->compress_buffer;
2302 *size = (size_t) rsize;
2303#else
2304 return -EPROTONOSUPPORT93;
2305#endif
2306 } else {
2307 *data = o->data.payload;
2308 *size = t;
2309 }
2310
2311 return 0;
2312}
2313
2314_public___attribute__ ((visibility("default"))) int sd_journal_enumerate_data(sd_journal *j, const void **data, size_t *size) {
2315 JournalFile *f;
2316 uint64_t p, n;
2317 le64_t le_hash;
2318 int r;
2319 Object *o;
2320
2321 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2321
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2322 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2322
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2323 assert_return(data, -EINVAL)do { if (!(((__builtin_expect(!!(data),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/journal/sd-journal.c", 2323
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2324 assert_return(size, -EINVAL)do { if (!(((__builtin_expect(!!(size),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("size"), "../src/journal/sd-journal.c", 2324
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2325
2326 f = j->current_file;
2327 if (!f)
2328 return -EADDRNOTAVAIL99;
2329
2330 if (f->current_offset <= 0)
2331 return -EADDRNOTAVAIL99;
2332
2333 r = journal_file_move_to_object(f, OBJECT_ENTRY, f->current_offset, &o);
2334 if (r < 0)
2335 return r;
2336
2337 n = journal_file_entry_n_items(o);
2338 if (j->current_field >= n)
2339 return 0;
2340
2341 p = le64toh(o->entry.items[j->current_field].object_offset);
2342 le_hash = o->entry.items[j->current_field].hash;
2343 r = journal_file_move_to_object(f, OBJECT_DATA, p, &o);
2344 if (r < 0)
2345 return r;
2346
2347 if (le_hash != o->data.hash)
2348 return -EBADMSG74;
2349
2350 r = return_data(j, f, o, data, size);
2351 if (r < 0)
2352 return r;
2353
2354 j->current_field++;
2355
2356 return 1;
2357}
2358
2359_public___attribute__ ((visibility("default"))) void sd_journal_restart_data(sd_journal *j) {
2360 if (!j)
2361 return;
2362
2363 j->current_field = 0;
2364}
2365
2366static int reiterate_all_paths(sd_journal *j) {
2367 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2367
, __PRETTY_FUNCTION__); } while (0);
2368
2369 if (j->no_new_files)
2370 return add_current_paths(j);
2371
2372 if (j->flags & SD_JOURNAL_OS_ROOT)
2373 return add_search_paths(j);
2374
2375 if (j->toplevel_fd >= 0)
2376 return add_root_directory(j, NULL((void*)0), false0);
2377
2378 if (j->path)
2379 return add_root_directory(j, j->path, true1);
2380
2381 return add_search_paths(j);
2382}
2383
2384_public___attribute__ ((visibility("default"))) int sd_journal_get_fd(sd_journal *j) {
2385 int r;
2386
2387 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2387
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2388 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2388
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2389
2390 if (j->no_inotify)
2391 return -EMEDIUMTYPE124;
2392
2393 if (j->inotify_fd >= 0)
2394 return j->inotify_fd;
2395
2396 r = allocate_inotify(j);
2397 if (r < 0)
2398 return r;
2399
2400 log_debug("Reiterating files to get inotify watches established.")({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2400, __func__, "Reiterating files to get inotify watches established."
) : -abs(_e); });
2401
2402 /* Iterate through all dirs again, to add them to the inotify */
2403 r = reiterate_all_paths(j);
2404 if (r < 0)
2405 return r;
2406
2407 return j->inotify_fd;
2408}
2409
2410_public___attribute__ ((visibility("default"))) int sd_journal_get_events(sd_journal *j) {
2411 int fd;
2412
2413 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2413
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2414 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2414
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2415
2416 fd = sd_journal_get_fd(j);
2417 if (fd < 0)
2418 return fd;
2419
2420 return POLLIN0x001;
2421}
2422
2423_public___attribute__ ((visibility("default"))) int sd_journal_get_timeout(sd_journal *j, uint64_t *timeout_usec) {
2424 int fd;
2425
2426 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2426
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2427 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2427
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2428 assert_return(timeout_usec, -EINVAL)do { if (!(((__builtin_expect(!!(timeout_usec),1))) ? (1) : (
log_assert_failed_return_realm(LOG_REALM_SYSTEMD, ("timeout_usec"
), "../src/journal/sd-journal.c", 2428, __PRETTY_FUNCTION__),
0))) return (-22); } while (0);
2429
2430 fd = sd_journal_get_fd(j);
2431 if (fd < 0)
2432 return fd;
2433
2434 if (!j->on_network) {
2435 *timeout_usec = (uint64_t) -1;
2436 return 0;
2437 }
2438
2439 /* If we are on the network we need to regularly check for
2440 * changes manually */
2441
2442 *timeout_usec = j->last_process_usec + JOURNAL_FILES_RECHECK_USEC(2 * ((usec_t) 1000000ULL));
2443 return 1;
2444}
2445
2446static void process_q_overflow(sd_journal *j) {
2447 JournalFile *f;
2448 Directory *m;
2449 Iterator i;
2450
2451 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2451
, __PRETTY_FUNCTION__); } while (0);
2452
2453 /* When the inotify queue overruns we need to enumerate and re-validate all journal files to bring our list
2454 * back in sync with what's on disk. For this we pick a new generation counter value. It'll be assigned to all
2455 * journal files we encounter. All journal files and all directories that don't carry it after reenumeration
2456 * are subject for unloading. */
2457
2458 log_debug("Inotify queue overrun, reiterating everything.")({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2458, __func__, "Inotify queue overrun, reiterating everything."
) : -abs(_e); });
2459
2460 j->generation++;
2461 (void) reiterate_all_paths(j);
2462
2463 ORDERED_HASHMAP_FOREACH(f, j->files, i)for ((i) = ((Iterator) { .idx = ((2147483647 *2U +1U) - 1), .
next_key = ((void*)0) }); ordered_hashmap_iterate((j->files
), &(i), (void**)&(f), ((void*)0)); ) {
2464
2465 if (f->last_seen_generation == j->generation)
2466 continue;
2467
2468 log_debug("File '%s' hasn't been seen in this enumeration, removing.", f->path)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2468, __func__, "File '%s' hasn't been seen in this enumeration, removing."
, f->path) : -abs(_e); });
2469 remove_file_real(j, f);
2470 }
2471
2472 HASHMAP_FOREACH(m, j->directories_by_path, i)for ((i) = ((Iterator) { .idx = ((2147483647 *2U +1U) - 1), .
next_key = ((void*)0) }); hashmap_iterate((j->directories_by_path
), &(i), (void**)&(m), ((void*)0)); ) {
2473
2474 if (m->last_seen_generation == j->generation)
2475 continue;
2476
2477 if (m->is_root) /* Never GC root directories */
2478 continue;
2479
2480 log_debug("Directory '%s' hasn't been seen in this enumeration, removing.", f->path)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2480, __func__, "Directory '%s' hasn't been seen in this enumeration, removing."
, f->path) : -abs(_e); });
2481 remove_directory(j, m);
2482 }
2483
2484 log_debug("Reiteration complete.")({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2484, __func__, "Reiteration complete."
) : -abs(_e); });
2485}
2486
2487static void process_inotify_event(sd_journal *j, struct inotify_event *e) {
2488 Directory *d;
2489
2490 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2490
, __PRETTY_FUNCTION__); } while (0);
2491 assert(e)do { if ((__builtin_expect(!!(!(e)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("e"), "../src/journal/sd-journal.c", 2491
, __PRETTY_FUNCTION__); } while (0);
2492
2493 if (e->mask & IN_Q_OVERFLOW0x00004000) {
2494 process_q_overflow(j);
2495 return;
2496 }
2497
2498 /* Is this a subdirectory we watch? */
2499 d = hashmap_get(j->directories_by_wd, INT_TO_PTR(e->wd)((void *) ((intptr_t) (e->wd))));
2500 if (d) {
2501 if (!(e->mask & IN_ISDIR0x40000000) && e->len > 0 &&
2502 (endswith(e->name, ".journal") ||
2503 endswith(e->name, ".journal~"))) {
2504
2505 /* Event for a journal file */
2506
2507 if (e->mask & (IN_CREATE0x00000100|IN_MOVED_TO0x00000080|IN_MODIFY0x00000002|IN_ATTRIB0x00000004))
2508 (void) add_file_by_name(j, d->path, e->name);
2509 else if (e->mask & (IN_DELETE0x00000200|IN_MOVED_FROM0x00000040|IN_UNMOUNT0x00002000))
2510 remove_file_by_name(j, d->path, e->name);
2511
2512 } else if (!d->is_root && e->len == 0) {
2513
2514 /* Event for a subdirectory */
2515
2516 if (e->mask & (IN_DELETE_SELF0x00000400|IN_MOVE_SELF0x00000800|IN_UNMOUNT0x00002000))
2517 remove_directory(j, d);
2518
2519 } else if (d->is_root && (e->mask & IN_ISDIR0x40000000) && e->len > 0 && id128_is_valid(e->name)) {
2520
2521 /* Event for root directory */
2522
2523 if (e->mask & (IN_CREATE0x00000100|IN_MOVED_TO0x00000080|IN_MODIFY0x00000002|IN_ATTRIB0x00000004))
2524 (void) add_directory(j, d->path, e->name);
2525 }
2526
2527 return;
2528 }
2529
2530 if (e->mask & IN_IGNORED0x00008000)
2531 return;
2532
2533 log_debug("Unexpected inotify event.")({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2533, __func__, "Unexpected inotify event."
) : -abs(_e); });
2534}
2535
2536static int determine_change(sd_journal *j) {
2537 bool_Bool b;
2538
2539 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2539
, __PRETTY_FUNCTION__); } while (0);
2540
2541 b = j->current_invalidate_counter != j->last_invalidate_counter;
2542 j->last_invalidate_counter = j->current_invalidate_counter;
2543
2544 return b ? SD_JOURNAL_INVALIDATE : SD_JOURNAL_APPEND;
2545}
2546
2547_public___attribute__ ((visibility("default"))) int sd_journal_process(sd_journal *j) {
2548 bool_Bool got_something = false0;
2549
2550 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2550
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2551 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2551
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2552
2553 if (j->inotify_fd < 0) /* We have no inotify fd yet? Then there's noting to process. */
2554 return 0;
2555
2556 j->last_process_usec = now(CLOCK_MONOTONIC1);
2557 j->last_invalidate_counter = j->current_invalidate_counter;
2558
2559 for (;;) {
2560 union inotify_event_buffer buffer;
2561 struct inotify_event *e;
2562 ssize_t l;
2563
2564 l = read(j->inotify_fd, &buffer, sizeof(buffer));
2565 if (l < 0) {
2566 if (IN_SET(errno, EAGAIN, EINTR)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){11, 4})/sizeof(int)]; switch((*__errno_location
())) { case 11: case 4: _found = 1; break; default: break; }
_found; }))
2567 return got_something ? determine_change(j) : SD_JOURNAL_NOP;
2568
2569 return -errno(*__errno_location ());
2570 }
2571
2572 got_something = true1;
2573
2574 FOREACH_INOTIFY_EVENT(e, buffer, l)for ((e) = &buffer.ev; (uint8_t*) (e) < (uint8_t*) (buffer
.raw) + (l); (e) = (struct inotify_event*) ((uint8_t*) (e) + sizeof
(struct inotify_event) + (e)->len))
2575 process_inotify_event(j, e);
2576 }
2577}
2578
2579_public___attribute__ ((visibility("default"))) int sd_journal_wait(sd_journal *j, uint64_t timeout_usec) {
2580 int r;
2581 uint64_t t;
2582
2583 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2583
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2584 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2584
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2585
2586 if (j->inotify_fd < 0) {
2587 Iterator i;
2588 JournalFile *f;
2589
2590 /* This is the first invocation, hence create the
2591 * inotify watch */
2592 r = sd_journal_get_fd(j);
2593 if (r < 0)
2594 return r;
2595
2596 /* Server might have done some vacuuming while we weren't watching.
2597 Get rid of the deleted files now so they don't stay around indefinitely. */
2598 ORDERED_HASHMAP_FOREACH(f, j->files, i)for ((i) = ((Iterator) { .idx = ((2147483647 *2U +1U) - 1), .
next_key = ((void*)0) }); ordered_hashmap_iterate((j->files
), &(i), (void**)&(f), ((void*)0)); ) {
2599 r = journal_file_fstat(f);
2600 if (r == -EIDRM43)
2601 remove_file_real(j, f);
2602 else if (r < 0) {
2603 log_debug_errno(r,"Failed to fstat() journal file '%s' : %m", f->path)({ int _level = ((7)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2603, __func__, "Failed to fstat() journal file '%s' : %m"
, f->path) : -abs(_e); });
2604 continue;
2605 }
2606 }
2607
2608 /* The journal might have changed since the context
2609 * object was created and we weren't watching before,
2610 * hence don't wait for anything, and return
2611 * immediately. */
2612 return determine_change(j);
2613 }
2614
2615 r = sd_journal_get_timeout(j, &t);
2616 if (r < 0)
2617 return r;
2618
2619 if (t != (uint64_t) -1) {
2620 usec_t n;
2621
2622 n = now(CLOCK_MONOTONIC1);
2623 t = t > n ? t - n : 0;
2624
2625 if (timeout_usec == (uint64_t) -1 || timeout_usec > t)
2626 timeout_usec = t;
2627 }
2628
2629 do {
2630 r = fd_wait_for_event(j->inotify_fd, POLLIN0x001, timeout_usec);
2631 } while (r == -EINTR4);
2632
2633 if (r < 0)
2634 return r;
2635
2636 return sd_journal_process(j);
2637}
2638
2639_public___attribute__ ((visibility("default"))) int sd_journal_get_cutoff_realtime_usec(sd_journal *j, uint64_t *from, uint64_t *to) {
2640 Iterator i;
2641 JournalFile *f;
2642 bool_Bool first = true1;
2643 uint64_t fmin = 0, tmax = 0;
2644 int r;
2645
2646 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2646
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2647 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2647
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2648 assert_return(from || to, -EINVAL)do { if (!(((__builtin_expect(!!(from || to),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("from || to"), "../src/journal/sd-journal.c"
, 2648, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2649 assert_return(from != to, -EINVAL)do { if (!(((__builtin_expect(!!(from != to),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("from != to"), "../src/journal/sd-journal.c"
, 2649, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2650
2651 ORDERED_HASHMAP_FOREACH(f, j->files, i)for ((i) = ((Iterator) { .idx = ((2147483647 *2U +1U) - 1), .
next_key = ((void*)0) }); ordered_hashmap_iterate((j->files
), &(i), (void**)&(f), ((void*)0)); ) {
2652 usec_t fr, t;
2653
2654 r = journal_file_get_cutoff_realtime_usec(f, &fr, &t);
2655 if (r == -ENOENT2)
2656 continue;
2657 if (r < 0)
2658 return r;
2659 if (r == 0)
2660 continue;
2661
2662 if (first) {
2663 fmin = fr;
2664 tmax = t;
2665 first = false0;
2666 } else {
2667 fmin = MIN(fr, fmin)__extension__ ({ const typeof((fr)) __unique_prefix_A51 = ((fr
)); const typeof((fmin)) __unique_prefix_B52 = ((fmin)); __unique_prefix_A51
< __unique_prefix_B52 ? __unique_prefix_A51 : __unique_prefix_B52
; });
2668 tmax = MAX(t, tmax)__extension__ ({ const typeof((t)) __unique_prefix_A53 = ((t)
); const typeof((tmax)) __unique_prefix_B54 = ((tmax)); __unique_prefix_A53
> __unique_prefix_B54 ? __unique_prefix_A53 : __unique_prefix_B54
; });
2669 }
2670 }
2671
2672 if (from)
2673 *from = fmin;
2674 if (to)
2675 *to = tmax;
2676
2677 return first ? 0 : 1;
2678}
2679
2680_public___attribute__ ((visibility("default"))) int sd_journal_get_cutoff_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t *from, uint64_t *to) {
2681 Iterator i;
2682 JournalFile *f;
2683 bool_Bool found = false0;
2684 int r;
2685
2686 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2686
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2687 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2687
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2688 assert_return(from || to, -EINVAL)do { if (!(((__builtin_expect(!!(from || to),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("from || to"), "../src/journal/sd-journal.c"
, 2688, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2689 assert_return(from != to, -EINVAL)do { if (!(((__builtin_expect(!!(from != to),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("from != to"), "../src/journal/sd-journal.c"
, 2689, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2690
2691 ORDERED_HASHMAP_FOREACH(f, j->files, i)for ((i) = ((Iterator) { .idx = ((2147483647 *2U +1U) - 1), .
next_key = ((void*)0) }); ordered_hashmap_iterate((j->files
), &(i), (void**)&(f), ((void*)0)); ) {
2692 usec_t fr, t;
2693
2694 r = journal_file_get_cutoff_monotonic_usec(f, boot_id, &fr, &t);
2695 if (r == -ENOENT2)
2696 continue;
2697 if (r < 0)
2698 return r;
2699 if (r == 0)
2700 continue;
2701
2702 if (found) {
2703 if (from)
2704 *from = MIN(fr, *from)__extension__ ({ const typeof((fr)) __unique_prefix_A55 = ((fr
)); const typeof((*from)) __unique_prefix_B56 = ((*from)); __unique_prefix_A55
< __unique_prefix_B56 ? __unique_prefix_A55 : __unique_prefix_B56
; });
2705 if (to)
2706 *to = MAX(t, *to)__extension__ ({ const typeof((t)) __unique_prefix_A57 = ((t)
); const typeof((*to)) __unique_prefix_B58 = ((*to)); __unique_prefix_A57
> __unique_prefix_B58 ? __unique_prefix_A57 : __unique_prefix_B58
; });
2707 } else {
2708 if (from)
2709 *from = fr;
2710 if (to)
2711 *to = t;
2712 found = true1;
2713 }
2714 }
2715
2716 return found;
2717}
2718
2719void journal_print_header(sd_journal *j) {
2720 Iterator i;
2721 JournalFile *f;
2722 bool_Bool newline = false0;
2723
2724 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2724
, __PRETTY_FUNCTION__); } while (0);
2725
2726 ORDERED_HASHMAP_FOREACH(f, j->files, i)for ((i) = ((Iterator) { .idx = ((2147483647 *2U +1U) - 1), .
next_key = ((void*)0) }); ordered_hashmap_iterate((j->files
), &(i), (void**)&(f), ((void*)0)); ) {
2727 if (newline)
2728 putchar('\n');
2729 else
2730 newline = true1;
2731
2732 journal_file_print_header(f);
2733 }
2734}
2735
2736_public___attribute__ ((visibility("default"))) int sd_journal_get_usage(sd_journal *j, uint64_t *bytes) {
2737 Iterator i;
2738 JournalFile *f;
2739 uint64_t sum = 0;
2740
2741 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2741
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2742 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2742
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2743 assert_return(bytes, -EINVAL)do { if (!(((__builtin_expect(!!(bytes),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("bytes"), "../src/journal/sd-journal.c",
2743, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2744
2745 ORDERED_HASHMAP_FOREACH(f, j->files, i)for ((i) = ((Iterator) { .idx = ((2147483647 *2U +1U) - 1), .
next_key = ((void*)0) }); ordered_hashmap_iterate((j->files
), &(i), (void**)&(f), ((void*)0)); ) {
2746 struct stat st;
2747
2748 if (fstat(f->fd, &st) < 0)
2749 return -errno(*__errno_location ());
2750
2751 sum += (uint64_t) st.st_blocks * 512ULL;
2752 }
2753
2754 *bytes = sum;
2755 return 0;
2756}
2757
2758_public___attribute__ ((visibility("default"))) int sd_journal_query_unique(sd_journal *j, const char *field) {
2759 char *f;
2760
2761 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2761
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2762 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2762
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2763 assert_return(!isempty(field), -EINVAL)do { if (!(((__builtin_expect(!!(!isempty(field)),1))) ? (1) :
(log_assert_failed_return_realm(LOG_REALM_SYSTEMD, ("!isempty(field)"
), "../src/journal/sd-journal.c", 2763, __PRETTY_FUNCTION__),
0))) return (-22); } while (0);
2764 assert_return(field_is_valid(field), -EINVAL)do { if (!(((__builtin_expect(!!(field_is_valid(field)),1))) ?
(1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, ("field_is_valid(field)"
), "../src/journal/sd-journal.c", 2764, __PRETTY_FUNCTION__),
0))) return (-22); } while (0);
2765
2766 f = strdup(field);
2767 if (!f)
2768 return -ENOMEM12;
2769
2770 free(j->unique_field);
2771 j->unique_field = f;
2772 j->unique_file = NULL((void*)0);
2773 j->unique_offset = 0;
2774 j->unique_file_lost = false0;
2775
2776 return 0;
2777}
2778
2779_public___attribute__ ((visibility("default"))) int sd_journal_enumerate_unique(sd_journal *j, const void **data, size_t *l) {
2780 size_t k;
2781
2782 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2782
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2783 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2783
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2784 assert_return(data, -EINVAL)do { if (!(((__builtin_expect(!!(data),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/journal/sd-journal.c", 2784
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2785 assert_return(l, -EINVAL)do { if (!(((__builtin_expect(!!(l),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("l"), "../src/journal/sd-journal.c", 2785
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2786 assert_return(j->unique_field, -EINVAL)do { if (!(((__builtin_expect(!!(j->unique_field),1))) ? (
1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, ("j->unique_field"
), "../src/journal/sd-journal.c", 2786, __PRETTY_FUNCTION__),
0))) return (-22); } while (0);
2787
2788 k = strlen(j->unique_field);
2789
2790 if (!j->unique_file) {
2791 if (j->unique_file_lost)
2792 return 0;
2793
2794 j->unique_file = ordered_hashmap_first(j->files);
2795 if (!j->unique_file)
2796 return 0;
2797
2798 j->unique_offset = 0;
2799 }
2800
2801 for (;;) {
2802 JournalFile *of;
2803 Iterator i;
2804 Object *o;
2805 const void *odata;
2806 size_t ol;
2807 bool_Bool found;
2808 int r;
2809
2810 /* Proceed to next data object in the field's linked list */
2811 if (j->unique_offset == 0) {
2812 r = journal_file_find_field_object(j->unique_file, j->unique_field, k, &o, NULL((void*)0));
2813 if (r < 0)
2814 return r;
2815
2816 j->unique_offset = r > 0 ? le64toh(o->field.head_data_offset) : 0;
2817 } else {
2818 r = journal_file_move_to_object(j->unique_file, OBJECT_DATA, j->unique_offset, &o);
2819 if (r < 0)
2820 return r;
2821
2822 j->unique_offset = le64toh(o->data.next_field_offset);
2823 }
2824
2825 /* We reached the end of the list? Then start again, with the next file */
2826 if (j->unique_offset == 0) {
2827 j->unique_file = ordered_hashmap_next(j->files, j->unique_file->path);
2828 if (!j->unique_file)
2829 return 0;
2830
2831 continue;
2832 }
2833
2834 /* We do not use OBJECT_DATA context here, but OBJECT_UNUSED
2835 * instead, so that we can look at this data object at the same
2836 * time as one on another file */
2837 r = journal_file_move_to_object(j->unique_file, OBJECT_UNUSED, j->unique_offset, &o);
2838 if (r < 0)
2839 return r;
2840
2841 /* Let's do the type check by hand, since we used 0 context above. */
2842 if (o->object.type != OBJECT_DATA) {
2843 log_debug("%s:offset " OFSfmt ": object has type %d, expected %d",({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2845, __func__, "%s:offset "
"%06""l" "x" ": object has type %d, expected %d", j->unique_file
->path, j->unique_offset, o->object.type, OBJECT_DATA
) : -abs(_e); })
2844 j->unique_file->path, j->unique_offset,({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2845, __func__, "%s:offset "
"%06""l" "x" ": object has type %d, expected %d", j->unique_file
->path, j->unique_offset, o->object.type, OBJECT_DATA
) : -abs(_e); })
2845 o->object.type, OBJECT_DATA)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2845, __func__, "%s:offset "
"%06""l" "x" ": object has type %d, expected %d", j->unique_file
->path, j->unique_offset, o->object.type, OBJECT_DATA
) : -abs(_e); });
2846 return -EBADMSG74;
2847 }
2848
2849 r = return_data(j, j->unique_file, o, &odata, &ol);
2850 if (r < 0)
2851 return r;
2852
2853 /* Check if we have at least the field name and "=". */
2854 if (ol <= k) {
2855 log_debug("%s:offset " OFSfmt ": object has size %zu, expected at least %zu",({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2857, __func__, "%s:offset "
"%06""l" "x" ": object has size %zu, expected at least %zu",
j->unique_file->path, j->unique_offset, ol, k + 1) :
-abs(_e); })
2856 j->unique_file->path, j->unique_offset,({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2857, __func__, "%s:offset "
"%06""l" "x" ": object has size %zu, expected at least %zu",
j->unique_file->path, j->unique_offset, ol, k + 1) :
-abs(_e); })
2857 ol, k + 1)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2857, __func__, "%s:offset "
"%06""l" "x" ": object has size %zu, expected at least %zu",
j->unique_file->path, j->unique_offset, ol, k + 1) :
-abs(_e); });
2858 return -EBADMSG74;
2859 }
2860
2861 if (memcmp(odata, j->unique_field, k) || ((const char*) odata)[k] != '=') {
2862 log_debug("%s:offset " OFSfmt ": object does not start with \"%s=\"",({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2864, __func__, "%s:offset "
"%06""l" "x" ": object does not start with \"%s=\"", j->unique_file
->path, j->unique_offset, j->unique_field) : -abs(_e
); })
2863 j->unique_file->path, j->unique_offset,({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2864, __func__, "%s:offset "
"%06""l" "x" ": object does not start with \"%s=\"", j->unique_file
->path, j->unique_offset, j->unique_field) : -abs(_e
); })
2864 j->unique_field)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2864, __func__, "%s:offset "
"%06""l" "x" ": object does not start with \"%s=\"", j->unique_file
->path, j->unique_offset, j->unique_field) : -abs(_e
); });
2865 return -EBADMSG74;
2866 }
2867
2868 /* OK, now let's see if we already returned this data
2869 * object by checking if it exists in the earlier
2870 * traversed files. */
2871 found = false0;
2872 ORDERED_HASHMAP_FOREACH(of, j->files, i)for ((i) = ((Iterator) { .idx = ((2147483647 *2U +1U) - 1), .
next_key = ((void*)0) }); ordered_hashmap_iterate((j->files
), &(i), (void**)&(of), ((void*)0)); ) {
2873 if (of == j->unique_file)
2874 break;
2875
2876 /* Skip this file it didn't have any fields indexed */
2877 if (JOURNAL_HEADER_CONTAINS(of->header, n_fields)(le64toh((of->header)->header_size) >= __builtin_offsetof
(Header, n_fields) + sizeof((of->header)->n_fields)) && le64toh(of->header->n_fields) <= 0)
2878 continue;
2879
2880 r = journal_file_find_data_object_with_hash(of, odata, ol, le64toh(o->data.hash), NULL((void*)0), NULL((void*)0));
2881 if (r < 0)
2882 return r;
2883 if (r > 0) {
2884 found = true1;
2885 break;
2886 }
2887 }
2888
2889 if (found)
2890 continue;
2891
2892 r = return_data(j, j->unique_file, o, data, l);
2893 if (r < 0)
2894 return r;
2895
2896 return 1;
2897 }
2898}
2899
2900_public___attribute__ ((visibility("default"))) void sd_journal_restart_unique(sd_journal *j) {
2901 if (!j)
2902 return;
2903
2904 j->unique_file = NULL((void*)0);
2905 j->unique_offset = 0;
2906 j->unique_file_lost = false0;
2907}
2908
2909_public___attribute__ ((visibility("default"))) int sd_journal_enumerate_fields(sd_journal *j, const char **field) {
2910 int r;
2911
2912 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 2912
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2913 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 2913
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
2914 assert_return(field, -EINVAL)do { if (!(((__builtin_expect(!!(field),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("field"), "../src/journal/sd-journal.c",
2914, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
2915
2916 if (!j->fields_file) {
2917 if (j->fields_file_lost)
2918 return 0;
2919
2920 j->fields_file = ordered_hashmap_first(j->files);
2921 if (!j->fields_file)
2922 return 0;
2923
2924 j->fields_hash_table_index = 0;
2925 j->fields_offset = 0;
2926 }
2927
2928 for (;;) {
2929 JournalFile *f, *of;
2930 Iterator i;
2931 uint64_t m;
2932 Object *o;
2933 size_t sz;
2934 bool_Bool found;
2935
2936 f = j->fields_file;
2937
2938 if (j->fields_offset == 0) {
2939 bool_Bool eof = false0;
2940
2941 /* We are not yet positioned at any field. Let's pick the first one */
2942 r = journal_file_map_field_hash_table(f);
2943 if (r < 0)
2944 return r;
2945
2946 m = le64toh(f->header->field_hash_table_size) / sizeof(HashItem);
2947 for (;;) {
2948 if (j->fields_hash_table_index >= m) {
2949 /* Reached the end of the hash table, go to the next file. */
2950 eof = true1;
2951 break;
2952 }
2953
2954 j->fields_offset = le64toh(f->field_hash_table[j->fields_hash_table_index].head_hash_offset);
2955
2956 if (j->fields_offset != 0)
2957 break;
2958
2959 /* Empty hash table bucket, go to next one */
2960 j->fields_hash_table_index++;
2961 }
2962
2963 if (eof) {
2964 /* Proceed with next file */
2965 j->fields_file = ordered_hashmap_next(j->files, f->path);
2966 if (!j->fields_file) {
2967 *field = NULL((void*)0);
2968 return 0;
2969 }
2970
2971 j->fields_offset = 0;
2972 j->fields_hash_table_index = 0;
2973 continue;
2974 }
2975
2976 } else {
2977 /* We are already positioned at a field. If so, let's figure out the next field from it */
2978
2979 r = journal_file_move_to_object(f, OBJECT_FIELD, j->fields_offset, &o);
2980 if (r < 0)
2981 return r;
2982
2983 j->fields_offset = le64toh(o->field.next_hash_offset);
2984 if (j->fields_offset == 0) {
2985 /* Reached the end of the hash table chain */
2986 j->fields_hash_table_index++;
2987 continue;
2988 }
2989 }
2990
2991 /* We use OBJECT_UNUSED here, so that the iterator below doesn't remove our mmap window */
2992 r = journal_file_move_to_object(f, OBJECT_UNUSED, j->fields_offset, &o);
2993 if (r < 0)
2994 return r;
2995
2996 /* Because we used OBJECT_UNUSED above, we need to do our type check manually */
2997 if (o->object.type != OBJECT_FIELD) {
2998 log_debug("%s:offset " OFSfmt ": object has type %i, expected %i", f->path, j->fields_offset, o->object.type, OBJECT_FIELD)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/journal/sd-journal.c", 2998, __func__, "%s:offset "
"%06""l" "x" ": object has type %i, expected %i", f->path
, j->fields_offset, o->object.type, OBJECT_FIELD) : -abs
(_e); });
2999 return -EBADMSG74;
3000 }
3001
3002 sz = le64toh(o->object.size) - offsetof(Object, field.payload)__builtin_offsetof(Object, field.payload);
3003
3004 /* Let's see if we already returned this field name before. */
3005 found = false0;
3006 ORDERED_HASHMAP_FOREACH(of, j->files, i)for ((i) = ((Iterator) { .idx = ((2147483647 *2U +1U) - 1), .
next_key = ((void*)0) }); ordered_hashmap_iterate((j->files
), &(i), (void**)&(of), ((void*)0)); ) {
3007 if (of == f)
3008 break;
3009
3010 /* Skip this file it didn't have any fields indexed */
3011 if (JOURNAL_HEADER_CONTAINS(of->header, n_fields)(le64toh((of->header)->header_size) >= __builtin_offsetof
(Header, n_fields) + sizeof((of->header)->n_fields)) && le64toh(of->header->n_fields) <= 0)
3012 continue;
3013
3014 r = journal_file_find_field_object_with_hash(of, o->field.payload, sz, le64toh(o->field.hash), NULL((void*)0), NULL((void*)0));
3015 if (r < 0)
3016 return r;
3017 if (r > 0) {
3018 found = true1;
3019 break;
3020 }
3021 }
3022
3023 if (found)
3024 continue;
3025
3026 /* Check if this is really a valid string containing no NUL byte */
3027 if (memchr(o->field.payload, 0, sz))
3028 return -EBADMSG74;
3029
3030 if (sz > j->data_threshold)
3031 sz = j->data_threshold;
3032
3033 if (!GREEDY_REALLOC(j->fields_buffer, j->fields_buffer_allocated, sz + 1)greedy_realloc((void**) &(j->fields_buffer), &(j->
fields_buffer_allocated), (sz + 1), sizeof((j->fields_buffer
)[0])))
3034 return -ENOMEM12;
3035
3036 memcpy(j->fields_buffer, o->field.payload, sz);
3037 j->fields_buffer[sz] = 0;
3038
3039 if (!field_is_valid(j->fields_buffer))
3040 return -EBADMSG74;
3041
3042 *field = j->fields_buffer;
3043 return 1;
3044 }
3045}
3046
3047_public___attribute__ ((visibility("default"))) void sd_journal_restart_fields(sd_journal *j) {
3048 if (!j)
3049 return;
3050
3051 j->fields_file = NULL((void*)0);
3052 j->fields_hash_table_index = 0;
3053 j->fields_offset = 0;
3054 j->fields_file_lost = false0;
3055}
3056
3057_public___attribute__ ((visibility("default"))) int sd_journal_reliable_fd(sd_journal *j) {
3058 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 3058
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
3059 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 3059
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
3060
3061 return !j->on_network;
3062}
3063
3064static char *lookup_field(const char *field, void *userdata) {
3065 sd_journal *j = userdata;
3066 const void *data;
3067 size_t size, d;
3068 int r;
3069
3070 assert(field)do { if ((__builtin_expect(!!(!(field)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("field"), "../src/journal/sd-journal.c",
3070, __PRETTY_FUNCTION__); } while (0);
3071 assert(j)do { if ((__builtin_expect(!!(!(j)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 3071
, __PRETTY_FUNCTION__); } while (0);
3072
3073 r = sd_journal_get_data(j, field, &data, &size);
3074 if (r < 0 ||
3075 size > REPLACE_VAR_MAX256)
3076 return strdup(field);
3077
3078 d = strlen(field) + 1;
3079
3080 return strndup((const char*) data + d, size - d);
3081}
3082
3083_public___attribute__ ((visibility("default"))) int sd_journal_get_catalog(sd_journal *j, char **ret) {
3084 const void *data;
3085 size_t size;
3086 sd_id128_t id;
3087 _cleanup_free___attribute__((cleanup(freep))) char *text = NULL((void*)0), *cid = NULL((void*)0);
3088 char *t;
3089 int r;
3090
3091 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 3091
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
3092 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 3092
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
3093 assert_return(ret, -EINVAL)do { if (!(((__builtin_expect(!!(ret),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/journal/sd-journal.c", 3093
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
3094
3095 r = sd_journal_get_data(j, "MESSAGE_ID", &data, &size);
3096 if (r < 0)
3097 return r;
3098
3099 cid = strndup((const char*) data + 11, size - 11);
3100 if (!cid)
3101 return -ENOMEM12;
3102
3103 r = sd_id128_from_string(cid, &id);
3104 if (r < 0)
3105 return r;
3106
3107 r = catalog_get(CATALOG_DATABASE"/var/lib/systemd/catalog/database", id, &text);
3108 if (r < 0)
3109 return r;
3110
3111 t = replace_var(text, lookup_field, j);
3112 if (!t)
3113 return -ENOMEM12;
3114
3115 *ret = t;
3116 return 0;
3117}
3118
3119_public___attribute__ ((visibility("default"))) int sd_journal_get_catalog_for_message_id(sd_id128_t id, char **ret) {
3120 assert_return(ret, -EINVAL)do { if (!(((__builtin_expect(!!(ret),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/journal/sd-journal.c", 3120
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
3121
3122 return catalog_get(CATALOG_DATABASE"/var/lib/systemd/catalog/database", id, ret);
3123}
3124
3125_public___attribute__ ((visibility("default"))) int sd_journal_set_data_threshold(sd_journal *j, size_t sz) {
3126 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 3126
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
3127 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 3127
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
3128
3129 j->data_threshold = sz;
3130 return 0;
3131}
3132
3133_public___attribute__ ((visibility("default"))) int sd_journal_get_data_threshold(sd_journal *j, size_t *sz) {
3134 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 3134
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
3135 assert_return(!journal_pid_changed(j), -ECHILD)do { if (!(((__builtin_expect(!!(!journal_pid_changed(j)),1))
) ? (1) : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, (
"!journal_pid_changed(j)"), "../src/journal/sd-journal.c", 3135
, __PRETTY_FUNCTION__), 0))) return (-10); } while (0);
3136 assert_return(sz, -EINVAL)do { if (!(((__builtin_expect(!!(sz),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("sz"), "../src/journal/sd-journal.c", 3136
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
3137
3138 *sz = j->data_threshold;
3139 return 0;
3140}
3141
3142_public___attribute__ ((visibility("default"))) int sd_journal_has_runtime_files(sd_journal *j) {
3143 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 3143
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
3144
3145 return j->has_runtime_files;
3146}
3147
3148_public___attribute__ ((visibility("default"))) int sd_journal_has_persistent_files(sd_journal *j) {
3149 assert_return(j, -EINVAL)do { if (!(((__builtin_expect(!!(j),1))) ? (1) : (log_assert_failed_return_realm
(LOG_REALM_SYSTEMD, ("j"), "../src/journal/sd-journal.c", 3149
, __PRETTY_FUNCTION__), 0))) return (-22); } while (0);
3150
3151 return j->has_persistent_files;
3152}