]> git.ipfire.org Git - thirdparty/systemd.git/blame - src/journal/journalctl.c
projects / thirdparty / systemd.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
systemctl: do not bother to mutate state on error
[thirdparty/systemd.git] / src / journal / journalctl.c
CommitLineData
87d2c1ff
LP		 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
2
3/***
4 This file is part of systemd.
5
6 Copyright 2011 Lennart Poettering
7
8 systemd is free software; you can redistribute it and/or modify it
5430f7f2
LP		 9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
87d2c1ff
LP		 11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
5430f7f2 16 Lesser General Public License for more details.
87d2c1ff 17
5430f7f2 18 You should have received a copy of the GNU Lesser General Public License
87d2c1ff
LP		 19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
a9cdc94f 22#include <locale.h>
87d2c1ff 23#include <fcntl.h>
ea18a4b5 24#include <fnmatch.h>
87d2c1ff
LP		 25#include <errno.h>
26#include <stddef.h>
3fbf9cbb
LP		 27#include <string.h>
28#include <stdio.h>
29#include <unistd.h>
30#include <stdlib.h>
72f59706 31#include <time.h>
0d43c694 32#include <getopt.h>
585314e8 33#include <signal.h>
50940700 34#include <sys/stat.h>
f982e6f7
LP		 35#include <sys/ioctl.h>
36#include <linux/fs.h>
87d2c1ff 37
4468addc
LP		 38#ifdef HAVE_ACL
39#include <sys/acl.h>
478c8269 40#include "acl-util.h"
4468addc
LP		 41#endif
42
81527be1
LP		 43#include <systemd/sd-journal.h>
44
3fbf9cbb 45#include "log.h"
7199aa96 46#include "logs-show.h"
72f59706 47#include "util.h"
e5124088 48#include "path-util.h"
68fee104 49#include "fileio.h"
0d43c694
LP		 50#include "build.h"
51#include "pager.h"
a963990f 52#include "strv.h"
ea18a4b5 53#include "set.h"
dca6219e 54#include "journal-internal.h"
7560fffc 55#include "journal-def.h"
0284adc6 56#include "journal-verify.h"
4da416aa 57#include "journal-authenticate.h"
f6a971bc 58#include "journal-qrcode.h"
4da416aa 59#include "fsprg.h"
c3f60ec5 60#include "unit-name.h"
d4205751 61#include "catalog.h"
7560fffc 62
baed47c3 63#define DEFAULT_FSS_INTERVAL_USEC (15*USEC_PER_MINUTE)
250d54b5 64
df50185b 65static OutputMode arg_output = OUTPUT_SHORT;
1b12a7b5 66static bool arg_pager_end = false;
72f59706 67static bool arg_follow = false;
2b8f6883 68static bool arg_full = true;
cd4b13e0 69static bool arg_all = false;
0d43c694 70static bool arg_no_pager = false;
67e04a48 71static int arg_lines = -1;
e91af489 72static bool arg_no_tail = false;
43673799 73static bool arg_quiet = false;
9e8a535f 74static bool arg_merge = false;
d121b396 75static bool arg_boot = false;
442e2def
LP		 76static sd_id128_t arg_boot_id = {};
77static int arg_boot_offset = 0;
99271804 78static bool arg_dmesg = false;
8f14c832 79static const char *arg_cursor = NULL;
248fc619
ZJS		 80static const char *arg_after_cursor = NULL;
81static bool arg_show_cursor = false;
a963990f 82static const char *arg_directory = NULL;
8d98da3f 83static char **arg_file = NULL;
941e990d 84static int arg_priorities = 0xFF;
baed47c3 85static const char *arg_verify_key = NULL;
feb12d3e 86#ifdef HAVE_GCRYPT
baed47c3 87static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC;
b8547c10 88static bool arg_force = false;
feb12d3e 89#endif
cfbc22ab
LP		 90static usec_t arg_since, arg_until;
91static bool arg_since_set = false, arg_until_set = false;
b9e40524
HH		 92static char **arg_system_units = NULL;
93static char **arg_user_units = NULL;
3c1668da 94static const char *arg_field = NULL;
d4205751 95static bool arg_catalog = false;
d89d6c86 96static bool arg_reverse = false;
3f3a438f 97static int arg_journal_type = 0;
13cbf3a5 98static const char *arg_root = NULL;
b6741478 99static const char *arg_machine = NULL;
50f20cfd 100
7560fffc
LP		 101static enum {
102 ACTION_SHOW,
103 ACTION_NEW_ID128,
104 ACTION_PRINT_HEADER,
beec0085 105 ACTION_SETUP_KEYS,
a1a03e30
LP		 106 ACTION_VERIFY,
107 ACTION_DISK_USAGE,
d4205751 108 ACTION_LIST_CATALOG,
54b7254c 109 ACTION_DUMP_CATALOG,
f1188074
ZJS		 110 ACTION_UPDATE_CATALOG,
111 ACTION_LIST_BOOTS,
7560fffc
LP		 112} arg_action = ACTION_SHOW;
113
a331b5e6
JJ		 114typedef struct boot_id_t {
115 sd_id128_t id;
f1188074
ZJS		 116 uint64_t first;
117 uint64_t last;
a331b5e6
JJ		 118} boot_id_t;
119
faf5077f
DH		 120static void pager_open_if_enabled(void) {
121
122 if (arg_no_pager)
123 return;
124
125 pager_open(arg_pager_end);
126}
127
442e2def
LP		 128static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset) {
129 sd_id128_t id = SD_ID128_NULL;
130 int off = 0, r;
131
132 if (strlen(x) >= 32) {
133 char *t;
134
135 t = strndupa(x, 32);
136 r = sd_id128_from_string(t, &id);
137 if (r >= 0)
138 x += 32;
139
140 if (*x != '-' && *x != '+' && *x != 0)
141 return -EINVAL;
142
143 if (*x != 0) {
144 r = safe_atoi(x, &off);
145 if (r < 0)
146 return r;
147 }
148 } else {
149 r = safe_atoi(x, &off);
150 if (r < 0)
151 return r;
152 }
153
154 if (boot_id)
155 *boot_id = id;
156
157 if (offset)
158 *offset = off;
159
160 return 0;
161}
162
0d43c694
LP		 163static int help(void) {
164
faf5077f
DH		 165 pager_open_if_enabled();
166
cd4b13e0 167 printf("%s [OPTIONS...] [MATCHES...]\n\n"
15119c16
LP		 168 "Query the journal.\n\n"
169 "Flags:\n"
eacbb4d3
ZJS		 170 " --system Show the system journal\n"
171 " --user Show the user journal for the current user\n"
b6741478 172 " -M --machine=CONTAINER Operate on local container\n"
c736283b
JSJ		 173 " --since=DATE Start showing entries on or newer than the specified date\n"
174 " --until=DATE Stop showing entries on or older than the specified date\n"
175 " -c --cursor=CURSOR Start showing entries from the specified cursor\n"
176 " --after-cursor=CURSOR Start showing entries from after the specified cursor\n"
248fc619 177 " --show-cursor Print the cursor after all the entries\n"
c736283b 178 " -b --boot[=ID] Show data only from ID or, if unspecified, the current boot\n"
f1188074 179 " --list-boots Show terse information about recorded boots\n"
c736283b 180 " -k --dmesg Show kernel message log from the current boot\n"
248fc619
ZJS		 181 " -u --unit=UNIT Show data only from the specified unit\n"
182 " --user-unit=UNIT Show data only from the specified user session unit\n"
183 " -p --priority=RANGE Show only messages within the specified priority range\n"
184 " -e --pager-end Immediately jump to end of the journal in the pager\n"
c736283b 185 " -f --follow Follow the journal\n"
248fc619
ZJS		 186 " -n --lines[=INTEGER] Number of journal entries to show\n"
187 " --no-tail Show all lines, even in follow mode\n"
188 " -r --reverse Show the newest entries first\n"
f02d8367 189 " -o --output=STRING Change journal output mode (short, short-iso,\n"
c736283b
JSJ		 190 " short-precise, short-monotonic, verbose,\n"
191 " export, json, json-pretty, json-sse, cat)\n"
248fc619 192 " -x --catalog Add message explanations where available\n"
2b8f6883 193 " --no-full Ellipsize fields\n"
248fc619 194 " -a --all Show all fields, including long and unprintable\n"
c736283b 195 " -q --quiet Do not show privilege warning\n"
248fc619
ZJS		 196 " --no-pager Do not pipe output into a pager\n"
197 " -m --merge Show entries from all available journals\n"
198 " -D --directory=PATH Show journal files from directory\n"
199 " --file=PATH Show journal file\n"
200 " --root=ROOT Operate on catalog files underneath the root ROOT\n"
15119c16 201#ifdef HAVE_GCRYPT
248fc619
ZJS		 202 " --interval=TIME Time interval for changing the FSS sealing key\n"
203 " --verify-key=KEY Specify FSS verification key\n"
c736283b 204 " --force Force overriding of the FSS key pair with --setup-keys\n"
15119c16
LP		 205#endif
206 "\nCommands:\n"
c736283b 207 " -h --help Show this help text\n"
248fc619 208 " --version Show package version\n"
c736283b 209 " --new-id128 Generate a new 128-bit ID\n"
248fc619 210 " --header Show journal header information\n"
c736283b
JSJ		 211 " --disk-usage Show total disk usage of all journal files\n"
212 " -F --field=FIELD List all values that a specified field takes\n"
248fc619
ZJS		 213 " --list-catalog Show message IDs of all entries in the message catalog\n"
214 " --dump-catalog Show entries in the message catalog\n"
215 " --update-catalog Update the message catalog database\n"
feb12d3e 216#ifdef HAVE_GCRYPT
c736283b 217 " --setup-keys Generate a new FSS key pair\n"
248fc619 218 " --verify Verify journal file consistency\n"
feb12d3e
LP		 219#endif
220 , program_invocation_short_name);
0d43c694
LP		 221
222 return 0;
223}
224
225static int parse_argv(int argc, char *argv[]) {
226
227 enum {
228 ARG_VERSION = 0x100,
e91af489 229 ARG_NO_PAGER,
2b8f6883 230 ARG_NO_FULL,
55ee336c 231 ARG_NO_TAIL,
dca6219e 232 ARG_NEW_ID128,
f1188074 233 ARG_LIST_BOOTS,
3f3a438f
ZJS		 234 ARG_USER,
235 ARG_SYSTEM,
13cbf3a5 236 ARG_ROOT,
7560fffc 237 ARG_HEADER,
beec0085 238 ARG_SETUP_KEYS,
8d98da3f 239 ARG_FILE,
baed47c3 240 ARG_INTERVAL,
4da416aa 241 ARG_VERIFY,
a1a03e30 242 ARG_VERIFY_KEY,
cfbc22ab
LP		 243 ARG_DISK_USAGE,
244 ARG_SINCE,
d4205751 245 ARG_UNTIL,
248fc619
ZJS		 246 ARG_AFTER_CURSOR,
247 ARG_SHOW_CURSOR,
ffa7cd15 248 ARG_USER_UNIT,
d4205751 249 ARG_LIST_CATALOG,
54b7254c 250 ARG_DUMP_CATALOG,
3f3a438f 251 ARG_UPDATE_CATALOG,
b8547c10 252 ARG_FORCE,
0d43c694
LP		 253 };
254
255 static const struct option options[] = {
248fc619
ZJS		 256 { "help", no_argument, NULL, 'h' },
257 { "version" , no_argument, NULL, ARG_VERSION },
258 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
259 { "pager-end", no_argument, NULL, 'e' },
260 { "follow", no_argument, NULL, 'f' },
261 { "force", no_argument, NULL, ARG_FORCE },
262 { "output", required_argument, NULL, 'o' },
263 { "all", no_argument, NULL, 'a' },
264 { "full", no_argument, NULL, 'l' },
2b8f6883 265 { "no-full", no_argument, NULL, ARG_NO_FULL },
248fc619
ZJS		 266 { "lines", optional_argument, NULL, 'n' },
267 { "no-tail", no_argument, NULL, ARG_NO_TAIL },
268 { "new-id128", no_argument, NULL, ARG_NEW_ID128 },
269 { "quiet", no_argument, NULL, 'q' },
270 { "merge", no_argument, NULL, 'm' },
271 { "boot", optional_argument, NULL, 'b' },
f1188074 272 { "list-boots", no_argument, NULL, ARG_LIST_BOOTS },
248fc619
ZJS		 273 { "this-boot", optional_argument, NULL, 'b' }, /* deprecated */
274 { "dmesg", no_argument, NULL, 'k' },
275 { "system", no_argument, NULL, ARG_SYSTEM },
276 { "user", no_argument, NULL, ARG_USER },
277 { "directory", required_argument, NULL, 'D' },
278 { "file", required_argument, NULL, ARG_FILE },
279 { "root", required_argument, NULL, ARG_ROOT },
280 { "header", no_argument, NULL, ARG_HEADER },
281 { "priority", required_argument, NULL, 'p' },
282 { "setup-keys", no_argument, NULL, ARG_SETUP_KEYS },
283 { "interval", required_argument, NULL, ARG_INTERVAL },
284 { "verify", no_argument, NULL, ARG_VERIFY },
285 { "verify-key", required_argument, NULL, ARG_VERIFY_KEY },
286 { "disk-usage", no_argument, NULL, ARG_DISK_USAGE },
287 { "cursor", required_argument, NULL, 'c' },
288 { "after-cursor", required_argument, NULL, ARG_AFTER_CURSOR },
289 { "show-cursor", no_argument, NULL, ARG_SHOW_CURSOR },
290 { "since", required_argument, NULL, ARG_SINCE },
291 { "until", required_argument, NULL, ARG_UNTIL },
292 { "unit", required_argument, NULL, 'u' },
293 { "user-unit", required_argument, NULL, ARG_USER_UNIT },
294 { "field", required_argument, NULL, 'F' },
295 { "catalog", no_argument, NULL, 'x' },
296 { "list-catalog", no_argument, NULL, ARG_LIST_CATALOG },
297 { "dump-catalog", no_argument, NULL, ARG_DUMP_CATALOG },
298 { "update-catalog", no_argument, NULL, ARG_UPDATE_CATALOG },
299 { "reverse", no_argument, NULL, 'r' },
b6741478 300 { "machine", required_argument, NULL, 'M' },
eb9da376 301 {}
0d43c694
LP		 302 };
303
2100675e 304 int c, r;
0d43c694
LP		 305
306 assert(argc >= 0);
307 assert(argv);
308
b6741478 309 while ((c = getopt_long(argc, argv, "hefo:aln::qmb::kD:p:c:u:F:xrM:", options, NULL)) >= 0) {
0d43c694
LP		 310
311 switch (c) {
312
313 case 'h':
eb9da376 314 return help();
0d43c694
LP		 315
316 case ARG_VERSION:
317 puts(PACKAGE_STRING);
0d43c694
LP		 318 puts(SYSTEMD_FEATURES);
319 return 0;
320
321 case ARG_NO_PAGER:
322 arg_no_pager = true;
323 break;
324
1b12a7b5
HH		 325 case 'e':
326 arg_pager_end = true;
fe59e38b
LP		 327
328 if (arg_lines < 0)
329 arg_lines = 1000;
330
1b12a7b5
HH		 331 break;
332
0d43c694
LP		 333 case 'f':
334 arg_follow = true;
335 break;
336
337 case 'o':
1705594f 338 arg_output = output_mode_from_string(optarg);
df50185b 339 if (arg_output < 0) {
edfb521a 340 log_error("Unknown output format '%s'.", optarg);
0d43c694
LP		 341 return -EINVAL;
342 }
df50185b 343
edfb521a
ZJS		 344 if (arg_output == OUTPUT_EXPORT ||
345 arg_output == OUTPUT_JSON ||
346 arg_output == OUTPUT_JSON_PRETTY ||
347 arg_output == OUTPUT_JSON_SSE ||
348 arg_output == OUTPUT_CAT)
349 arg_quiet = true;
350
0d43c694
LP		 351 break;
352
98a6e132 353 case 'l':
e3657ecd
ZJS		 354 arg_full = true;
355 break;
356
2b8f6883
ZJS		 357 case ARG_NO_FULL:
358 arg_full = false;
359 break;
360
0d43c694 361 case 'a':
cd4b13e0 362 arg_all = true;
0d43c694
LP		 363 break;
364
2100675e 365 case 'n':
1705594f 366 if (optarg) {
67e04a48
ZJS		 367 r = safe_atoi(optarg, &arg_lines);
368 if (r < 0 || arg_lines < 0) {
1705594f
LP		 369 log_error("Failed to parse lines '%s'", optarg);
370 return -EINVAL;
371 }
96088db0
LP		 372 } else {
373 int n;
374
375 /* Hmm, no argument? Maybe the next
376 * word on the command line is
377 * supposed to be the argument? Let's
378 * see if there is one, and is
379 * parsable as a positive
380 * integer... */
381
382 if (optind < argc &&
383 safe_atoi(argv[optind], &n) >= 0 &&
384 n >= 0) {
385
386 arg_lines = n;
387 optind++;
388 } else
389 arg_lines = 10;
390 }
1705594f 391
2100675e
LP		 392 break;
393
e91af489
LP		 394 case ARG_NO_TAIL:
395 arg_no_tail = true;
396 break;
397
39f7f5c1 398 case ARG_NEW_ID128:
7560fffc 399 arg_action = ACTION_NEW_ID128;
55ee336c
LP		 400 break;
401
43673799
LP		 402 case 'q':
403 arg_quiet = true;
490e567d 404 break;
43673799 405
9e8a535f
LP		 406 case 'm':
407 arg_merge = true;
2bd3c38a
LP		 408 break;
409
59cea26a 410 case 'b':
d121b396 411 arg_boot = true;
6cebe83c 412
442e2def
LP		 413 if (optarg) {
414 r = parse_boot_descriptor(optarg, &arg_boot_id, &arg_boot_offset);
415 if (r < 0) {
416 log_error("Failed to parse boot descriptor '%s'", optarg);
417 return -EINVAL;
418 }
419 } else {
6cebe83c 420
442e2def
LP		 421 /* Hmm, no argument? Maybe the next
422 * word on the command line is
423 * supposed to be the argument? Let's
424 * see if there is one and is parsable
425 * as a boot descriptor... */
426
427 if (optind < argc &&
428 parse_boot_descriptor(argv[optind], &arg_boot_id, &arg_boot_offset) >= 0)
6cebe83c 429 optind++;
6cebe83c 430 }
d121b396 431
59cea26a
LP		 432 break;
433
f1188074
ZJS		 434 case ARG_LIST_BOOTS:
435 arg_action = ACTION_LIST_BOOTS;
436 break;
437
99271804 438 case 'k':
d121b396 439 arg_boot = arg_dmesg = true;
99271804
ZJS		 440 break;
441
3f3a438f
ZJS		 442 case ARG_SYSTEM:
443 arg_journal_type |= SD_JOURNAL_SYSTEM;
444 break;
445
446 case ARG_USER:
447 arg_journal_type |= SD_JOURNAL_CURRENT_USER;
448 break;
449
b6741478
LP		 450 case 'M':
451 arg_machine = optarg;
452 break;
453
a963990f
LP		 454 case 'D':
455 arg_directory = optarg;
456 break;
457
8d98da3f
ZJS		 458 case ARG_FILE:
459 r = glob_extend(&arg_file, optarg);
460 if (r < 0) {
461 log_error("Failed to add paths: %s", strerror(-r));
462 return r;
463 };
464 break;
465
13cbf3a5
ZJS		 466 case ARG_ROOT:
467 arg_root = optarg;
468 break;
469
8f14c832
LP		 470 case 'c':
471 arg_cursor = optarg;
472 break;
473
248fc619
ZJS		 474 case ARG_AFTER_CURSOR:
475 arg_after_cursor = optarg;
476 break;
477
478 case ARG_SHOW_CURSOR:
479 arg_show_cursor = true;
480 break;
481
dca6219e 482 case ARG_HEADER:
7560fffc
LP		 483 arg_action = ACTION_PRINT_HEADER;
484 break;
485
feb12d3e
LP		 486 case ARG_VERIFY:
487 arg_action = ACTION_VERIFY;
488 break;
489
a1a03e30
LP		 490 case ARG_DISK_USAGE:
491 arg_action = ACTION_DISK_USAGE;
492 break;
493
feb12d3e 494#ifdef HAVE_GCRYPT
b8547c10
SL		 495 case ARG_FORCE:
496 arg_force = true;
497 break;
498
7560fffc
LP		 499 case ARG_SETUP_KEYS:
500 arg_action = ACTION_SETUP_KEYS;
dca6219e
LP		 501 break;
502
beec0085 503
baed47c3 504 case ARG_VERIFY_KEY:
4da416aa 505 arg_action = ACTION_VERIFY;
baed47c3 506 arg_verify_key = optarg;
9e8a535f 507 arg_merge = false;
4da416aa
LP		 508 break;
509
baed47c3 510 case ARG_INTERVAL:
7f602784 511 r = parse_sec(optarg, &arg_interval);
baed47c3
LP		 512 if (r < 0 || arg_interval <= 0) {
513 log_error("Failed to parse sealing key change interval: %s", optarg);
14d10188
LP		 514 return -EINVAL;
515 }
516 break;
feb12d3e
LP		 517#else
518 case ARG_SETUP_KEYS:
519 case ARG_VERIFY_KEY:
520 case ARG_INTERVAL:
b8547c10 521 case ARG_FORCE:
feb12d3e
LP		 522 log_error("Forward-secure sealing not available.");
523 return -ENOTSUP;
524#endif
14d10188 525
941e990d
LP		 526 case 'p': {
527 const char *dots;
528
529 dots = strstr(optarg, "..");
530 if (dots) {
531 char *a;
532 int from, to, i;
533
534 /* a range */
535 a = strndup(optarg, dots - optarg);
536 if (!a)
537 return log_oom();
538
539 from = log_level_from_string(a);
540 to = log_level_from_string(dots + 2);
541 free(a);
542
543 if (from < 0 || to < 0) {
544 log_error("Failed to parse log level range %s", optarg);
545 return -EINVAL;
546 }
547
548 arg_priorities = 0;
549
550 if (from < to) {
551 for (i = from; i <= to; i++)
552 arg_priorities |= 1 << i;
553 } else {
554 for (i = to; i <= from; i++)
555 arg_priorities |= 1 << i;
556 }
557
558 } else {
559 int p, i;
560
561 p = log_level_from_string(optarg);
562 if (p < 0) {
563 log_error("Unknown log level %s", optarg);
564 return -EINVAL;
565 }
566
567 arg_priorities = 0;
568
569 for (i = 0; i <= p; i++)
570 arg_priorities |= 1 << i;
571 }
572
573 break;
574 }
575
cfbc22ab
LP		 576 case ARG_SINCE:
577 r = parse_timestamp(optarg, &arg_since);
578 if (r < 0) {
579 log_error("Failed to parse timestamp: %s", optarg);
580 return -EINVAL;
581 }
582 arg_since_set = true;
583 break;
584
585 case ARG_UNTIL:
586 r = parse_timestamp(optarg, &arg_until);
587 if (r < 0) {
588 log_error("Failed to parse timestamp: %s", optarg);
589 return -EINVAL;
590 }
591 arg_until_set = true;
592 break;
593
7199aa96 594 case 'u':
b9e40524
HH		 595 r = strv_extend(&arg_system_units, optarg);
596 if (r < 0)
597 return log_oom();
ffa7cd15
DW		 598 break;
599
7199aa96 600 case ARG_USER_UNIT:
b9e40524
HH		 601 r = strv_extend(&arg_user_units, optarg);
602 if (r < 0)
603 return log_oom();
c3f60ec5
LP		 604 break;
605
15119c16
LP		 606 case 'F':
607 arg_field = optarg;
608 break;
609
d4205751
LP		 610 case 'x':
611 arg_catalog = true;
612 break;
613
614 case ARG_LIST_CATALOG:
615 arg_action = ACTION_LIST_CATALOG;
616 break;
617
54b7254c
ZJS		 618 case ARG_DUMP_CATALOG:
619 arg_action = ACTION_DUMP_CATALOG;
620 break;
621
d4205751
LP		 622 case ARG_UPDATE_CATALOG:
623 arg_action = ACTION_UPDATE_CATALOG;
624 break;
625
d89d6c86
LN		 626 case 'r':
627 arg_reverse = true;
628 break;
629
eb9da376 630 case '?':
0d43c694 631 return -EINVAL;
eb9da376
LP		 632
633 default:
634 assert_not_reached("Unhandled option");
0d43c694
LP		 635 }
636 }
637
67e04a48 638 if (arg_follow && !arg_no_tail && arg_lines < 0)
e91af489
LP		 639 arg_lines = 10;
640
b6741478
LP		 641 if (!!arg_directory + !!arg_file + !!arg_machine > 1) {
642 log_error("Please specify either -D/--directory= or --file= or -M/--machine=, not more than one.");
8d98da3f
ZJS		 643 return -EINVAL;
644 }
645
3ba09ee8 646 if (arg_since_set && arg_until_set && arg_since > arg_until) {
cfbc22ab
LP		 647 log_error("--since= must be before --until=.");
648 return -EINVAL;
649 }
650
248fc619
ZJS		 651 if (!!arg_cursor + !!arg_after_cursor + !!arg_since_set > 1) {
652 log_error("Please specify only one of --since=, --cursor=, and --after-cursor.");
cfbc22ab
LP		 653 return -EINVAL;
654 }
655
d89d6c86
LN		 656 if (arg_follow && arg_reverse) {
657 log_error("Please specify either --reverse= or --follow=, not both.");
658 return -EINVAL;
659 }
660
0b6b7c20
ZJS		 661 if (arg_action != ACTION_SHOW && optind < argc) {
662 log_error("Extraneous arguments starting with '%s'", argv[optind]);
663 return -EINVAL;
664 }
665
0d43c694
LP		 666 return 1;
667}
668
39f7f5c1 669static int generate_new_id128(void) {
55ee336c
LP		 670 sd_id128_t id;
671 int r;
672 unsigned i;
673
674 r = sd_id128_randomize(&id);
675 if (r < 0) {
676 log_error("Failed to generate ID: %s", strerror(-r));
677 return r;
678 }
679
680 printf("As string:\n"
681 SD_ID128_FORMAT_STR "\n\n"
682 "As UUID:\n"
683 "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n\n"
684 "As macro:\n"
d489071f 685 "#define MESSAGE_XYZ SD_ID128_MAKE(",
55ee336c
LP		 686 SD_ID128_FORMAT_VAL(id),
687 SD_ID128_FORMAT_VAL(id));
55ee336c
LP		 688 for (i = 0; i < 16; i++)
689 printf("%02x%s", id.bytes[i], i != 15 ? "," : "");
d489071f 690 fputs(")\n\n", stdout);
55ee336c 691
d489071f
ZJS		 692 printf("As Python constant:\n"
693 ">>> import uuid\n"
694 ">>> MESSAGE_XYZ = uuid.UUID('" SD_ID128_FORMAT_STR "')\n",
695 SD_ID128_FORMAT_VAL(id));
55ee336c
LP		 696
697 return 0;
698}
699
a963990f
LP		 700static int add_matches(sd_journal *j, char **args) {
701 char **i;
4e602943 702 bool have_term = false;
59cea26a 703
a963990f 704 assert(j);
59cea26a 705
a963990f 706 STRV_FOREACH(i, args) {
52aeb63c 707 int r;
59cea26a 708
4e602943
ZJS		 709 if (streq(*i, "+")) {
710 if (!have_term)
711 break;
cbdca852 712 r = sd_journal_add_disjunction(j);
4e602943
ZJS		 713 have_term = false;
714
715 } else if (path_is_absolute(*i)) {
68fee104 716 _cleanup_free_ char *p, *t = NULL, *t2 = NULL;
e5124088 717 const char *path;
68fee104 718 _cleanup_free_ char *interpreter = NULL;
a963990f 719 struct stat st;
e5124088 720
a963990f
LP		 721 p = canonicalize_file_name(*i);
722 path = p ? p : *i;
e5124088
LP		 723
724 if (stat(path, &st) < 0) {
e5124088 725 log_error("Couldn't stat file: %m");
a963990f 726 return -errno;
e5124088
LP		 727 }
728
68fee104
ZJS		 729 if (S_ISREG(st.st_mode) && (0111 & st.st_mode)) {
730 if (executable_is_script(path, &interpreter) > 0) {
731 _cleanup_free_ char *comm;
732
2b6bf07d 733 comm = strndup(basename(path), 15);
68fee104
ZJS		 734 if (!comm)
735 return log_oom();
736
737 t = strappend("_COMM=", comm);
738
739 /* Append _EXE only if the interpreter is not a link.
73e231ab 740 Otherwise, it might be outdated often. */
68fee104
ZJS		 741 if (lstat(interpreter, &st) == 0 &&
742 !S_ISLNK(st.st_mode)) {
743 t2 = strappend("_EXE=", interpreter);
744 if (!t2)
745 return log_oom();
746 }
747 } else
748 t = strappend("_EXE=", path);
7de80bfe
KZ		 749 } else if (S_ISCHR(st.st_mode)) {
750 if (asprintf(&t, "_KERNEL_DEVICE=c%u:%u",
751 major(st.st_rdev),
752 minor(st.st_rdev)) < 0)
753 return -ENOMEM;
754 } else if (S_ISBLK(st.st_mode)) {
755 if (asprintf(&t, "_KERNEL_DEVICE=b%u:%u",
756 major(st.st_rdev),
757 minor(st.st_rdev)) < 0)
758 return -ENOMEM;
759 } else {
fb93cf73 760 log_error("File is neither a device node, nor regular file, nor executable: %s", *i);
a963990f 761 return -EINVAL;
50940700 762 }
e5124088 763
b6a34514
LP		 764 if (!t)
765 return log_oom();
766
767 r = sd_journal_add_match(j, t, 0);
68fee104
ZJS		 768 if (t2)
769 r = sd_journal_add_match(j, t2, 0);
4e602943
ZJS		 770 have_term = true;
771
772 } else {
cbdca852 773 r = sd_journal_add_match(j, *i, 0);
4e602943
ZJS		 774 have_term = true;
775 }
e5124088 776
de7b95cd 777 if (r < 0) {
cbdca852 778 log_error("Failed to add match '%s': %s", *i, strerror(-r));
a963990f 779 return r;
de7b95cd
LP		 780 }
781 }
782
4e602943
ZJS		 783 if (!strv_isempty(args) && !have_term) {
784 log_error("\"+\" can only be used between terms");
785 return -EINVAL;
786 }
787
a963990f
LP		 788 return 0;
789}
790
a331b5e6
JJ		 791static int boot_id_cmp(const void *a, const void *b) {
792 uint64_t _a, _b;
793
f1188074
ZJS		 794 _a = ((const boot_id_t *)a)->first;
795 _b = ((const boot_id_t *)b)->first;
a331b5e6
JJ		 796
797 return _a < _b ? -1 : (_a > _b ? 1 : 0);
798}
799
f1188074
ZJS		 800static int list_boots(sd_journal *j) {
801 int r;
802 const void *data;
803 unsigned int count = 0;
804 int w, i;
805 size_t length, allocated = 0;
806 boot_id_t *id;
807 _cleanup_free_ boot_id_t *all_ids = NULL;
808
809 r = sd_journal_query_unique(j, "_BOOT_ID");
810 if (r < 0)
811 return r;
812
813 SD_JOURNAL_FOREACH_UNIQUE(j, data, length) {
814 if (length < strlen("_BOOT_ID="))
815 continue;
816
817 if (!GREEDY_REALLOC(all_ids, allocated, count + 1))
818 return log_oom();
819
820 id = &all_ids[count];
821
822 r = sd_id128_from_string(((const char *)data) + strlen("_BOOT_ID="), &id->id);
823 if (r < 0)
824 continue;
825
826 r = sd_journal_add_match(j, data, length);
827 if (r < 0)
828 return r;
829
830 r = sd_journal_seek_head(j);
831 if (r < 0)
832 return r;
833
834 r = sd_journal_next(j);
835 if (r < 0)
836 return r;
837 else if (r == 0)
838 goto flush;
839
840 r = sd_journal_get_realtime_usec(j, &id->first);
841 if (r < 0)
842 return r;
843
844 r = sd_journal_seek_tail(j);
845 if (r < 0)
846 return r;
847
848 r = sd_journal_previous(j);
849 if (r < 0)
850 return r;
851 else if (r == 0)
852 goto flush;
853
854 r = sd_journal_get_realtime_usec(j, &id->last);
855 if (r < 0)
856 return r;
857
858 count++;
859 flush:
860 sd_journal_flush_matches(j);
861 }
862
863 qsort_safe(all_ids, count, sizeof(boot_id_t), boot_id_cmp);
864
865 /* numbers are one less, but we need an extra char for the sign */
866 w = DECIMAL_STR_WIDTH(count - 1) + 1;
867
868 for (id = all_ids, i = 0; id < all_ids + count; id++, i++) {
869 char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX];
870
871 printf("% *i " SD_ID128_FORMAT_STR " %s—%s\n",
872 w, i - count + 1,
873 SD_ID128_FORMAT_VAL(id->id),
874 format_timestamp(a, sizeof(a), id->first),
875 format_timestamp(b, sizeof(b), id->last));
876 }
877
878 return 0;
879}
880
a331b5e6
JJ		 881static int get_relative_boot_id(sd_journal *j, sd_id128_t *boot_id, int relative) {
882 int r;
883 const void *data;
d121b396 884 unsigned int count = 0;
a331b5e6 885 size_t length, allocated = 0;
d121b396 886 boot_id_t ref_boot_id = {SD_ID128_NULL}, *id;
a331b5e6 887 _cleanup_free_ boot_id_t *all_ids = NULL;
a331b5e6
JJ		 888
889 assert(j);
890 assert(boot_id);
891
a331b5e6
JJ		 892 r = sd_journal_query_unique(j, "_BOOT_ID");
893 if (r < 0)
894 return r;
895
896 SD_JOURNAL_FOREACH_UNIQUE(j, data, length) {
897 if (length < strlen("_BOOT_ID="))
898 continue;
899
d121b396 900 if (!GREEDY_REALLOC(all_ids, allocated, count + 1))
a331b5e6
JJ		 901 return log_oom();
902
d121b396 903 id = &all_ids[count];
a331b5e6
JJ		 904
905 r = sd_id128_from_string(((const char *)data) + strlen("_BOOT_ID="), &id->id);
d121b396 906 if (r < 0)
a331b5e6 907 continue;
a331b5e6 908
a331b5e6
JJ		 909 r = sd_journal_add_match(j, data, length);
910 if (r < 0)
d121b396 911 return r;
a331b5e6
JJ		 912
913 r = sd_journal_seek_head(j);
914 if (r < 0)
d121b396 915 return r;
a331b5e6
JJ		 916
917 r = sd_journal_next(j);
d121b396
ZJS		 918 if (r < 0)
919 return r;
920 else if (r == 0)
921 goto flush;
a331b5e6 922
f1188074 923 r = sd_journal_get_realtime_usec(j, &id->first);
a331b5e6 924 if (r < 0)
d121b396 925 return r;
a331b5e6 926
d121b396 927 if (sd_id128_equal(id->id, *boot_id))
a331b5e6 928 ref_boot_id = *id;
a331b5e6 929
d121b396
ZJS		 930 count++;
931 flush:
932 sd_journal_flush_matches(j);
a331b5e6
JJ		 933 }
934
7ff7394d 935 qsort_safe(all_ids, count, sizeof(boot_id_t), boot_id_cmp);
a331b5e6 936
d121b396
ZJS		 937 if (sd_id128_equal(*boot_id, SD_ID128_NULL)) {
938 if (relative > (int) count || relative <= -(int)count)
939 return -EADDRNOTAVAIL;
a331b5e6 940
d121b396
ZJS		 941 *boot_id = all_ids[(relative <= 0)*count + relative - 1].id;
942 } else {
943 id = bsearch(&ref_boot_id, all_ids, count, sizeof(boot_id_t), boot_id_cmp);
a331b5e6 944
d121b396
ZJS		 945 if (!id ||
946 relative <= 0 ? (id - all_ids) + relative < 0 :
a54e3b3d 947 (id - all_ids) + relative >= (int) count)
d121b396
ZJS		 948 return -EADDRNOTAVAIL;
949
950 *boot_id = (id + relative)->id;
951 }
a963990f 952
a331b5e6
JJ		 953 return 0;
954}
955
956static int add_boot(sd_journal *j) {
957 char match[9+32+1] = "_BOOT_ID=";
442e2def 958 int r;
a331b5e6
JJ		 959
960 assert(j);
961
d121b396 962 if (!arg_boot)
a331b5e6
JJ		 963 return 0;
964
442e2def 965 if (arg_boot_offset == 0 && sd_id128_equal(arg_boot_id, SD_ID128_NULL))
b6741478 966 return add_match_this_boot(j, arg_machine);
a331b5e6 967
442e2def 968 r = get_relative_boot_id(j, &arg_boot_id, arg_boot_offset);
a331b5e6 969 if (r < 0) {
442e2def
LP		 970 if (sd_id128_equal(arg_boot_id, SD_ID128_NULL))
971 log_error("Failed to look up boot %+i: %s", arg_boot_offset, strerror(-r));
d121b396 972 else
442e2def
LP		 973 log_error("Failed to look up boot ID "SD_ID128_FORMAT_STR"%+i: %s",
974 SD_ID128_FORMAT_VAL(arg_boot_id), arg_boot_offset, strerror(-r));
a331b5e6 975 return r;
a331b5e6
JJ		 976 }
977
442e2def 978 sd_id128_to_string(arg_boot_id, match + 9);
d121b396
ZJS		 979
980 r = sd_journal_add_match(j, match, sizeof(match) - 1);
a331b5e6
JJ		 981 if (r < 0) {
982 log_error("Failed to add match: %s", strerror(-r));
983 return r;
984 }
985
986 r = sd_journal_add_conjunction(j);
987 if (r < 0)
988 return r;
989
990 return 0;
a963990f
LP		 991}
992
99271804
ZJS		 993static int add_dmesg(sd_journal *j) {
994 int r;
995 assert(j);
996
997 if (!arg_dmesg)
998 return 0;
999
1000 r = sd_journal_add_match(j, "_TRANSPORT=kernel", strlen("_TRANSPORT=kernel"));
1001 if (r < 0) {
1002 log_error("Failed to add match: %s", strerror(-r));
1003 return r;
1004 }
1005
1006 r = sd_journal_add_conjunction(j);
1007 if (r < 0)
1008 return r;
1009
1010 return 0;
1011}
1012
ea18a4b5
ZJS		 1013static int get_possible_units(sd_journal *j,
1014 const char *fields,
1015 char **patterns,
1016 Set **units) {
1017 _cleanup_set_free_free_ Set *found;
1018 const char *field;
c3f60ec5 1019 int r;
ea18a4b5
ZJS		 1020
1021 found = set_new(string_hash_func, string_compare_func);
1022 if (!found)
1023 return log_oom();
1024
1025 NULSTR_FOREACH(field, fields) {
1026 const void *data;
1027 size_t size;
1028
1029 r = sd_journal_query_unique(j, field);
1030 if (r < 0)
1031 return r;
1032
1033 SD_JOURNAL_FOREACH_UNIQUE(j, data, size) {
1034 char **pattern, *eq;
1035 size_t prefix;
1036 _cleanup_free_ char *u = NULL;
1037
1038 eq = memchr(data, '=', size);
1039 if (eq)
1040 prefix = eq - (char*) data + 1;
1041 else
1042 prefix = 0;
1043
1044 u = strndup((char*) data + prefix, size - prefix);
1045 if (!u)
1046 return log_oom();
1047
1048 STRV_FOREACH(pattern, patterns)
1049 if (fnmatch(*pattern, u, FNM_NOESCAPE) == 0) {
1050 log_debug("Matched %s with pattern %s=%s", u, field, *pattern);
1051
1052 r = set_consume(found, u);
1053 u = NULL;
1054 if (r < 0 && r != -EEXIST)
1055 return r;
1056
1057 break;
1058 }
1059 }
1060 }
1061
1062 *units = found;
1063 found = NULL;
1064 return 0;
1065}
1066
1067/* This list is supposed to return the superset of unit names
1068 * possibly matched by rules added with add_matches_for_unit... */
1069#define SYSTEM_UNITS \
1070 "_SYSTEMD_UNIT\0" \
1071 "COREDUMP_UNIT\0" \
1072 "UNIT\0" \
1073 "OBJECT_SYSTEMD_UNIT\0" \
1074 "_SYSTEMD_SLICE\0"
1075
1076/* ... and add_matches_for_user_unit */
1077#define USER_UNITS \
1078 "_SYSTEMD_USER_UNIT\0" \
1079 "USER_UNIT\0" \
1080 "COREDUMP_USER_UNIT\0" \
1081 "OBJECT_SYSTEMD_USER_UNIT\0"
1082
1083static int add_units(sd_journal *j) {
1084 _cleanup_strv_free_ char **patterns = NULL;
1085 int r, count = 0;
b9e40524 1086 char **i;
c3f60ec5
LP		 1087
1088 assert(j);
1089
b9e40524 1090 STRV_FOREACH(i, arg_system_units) {
ea18a4b5
ZJS		 1091 _cleanup_free_ char *u = NULL;
1092
1093 u = unit_name_mangle(*i, MANGLE_GLOB);
b9e40524
HH		 1094 if (!u)
1095 return log_oom();
ea18a4b5
ZJS		 1096
1097 if (string_is_glob(u)) {
1098 r = strv_push(&patterns, u);
1099 if (r < 0)
1100 return r;
1101 u = NULL;
1102 } else {
1103 r = add_matches_for_unit(j, u);
1104 if (r < 0)
1105 return r;
1106 r = sd_journal_add_disjunction(j);
1107 if (r < 0)
1108 return r;
1109 count ++;
1110 }
1111 }
1112
1113 if (!strv_isempty(patterns)) {
1114 _cleanup_set_free_free_ Set *units = NULL;
1115 Iterator it;
1116 char *u;
1117
1118 r = get_possible_units(j, SYSTEM_UNITS, patterns, &units);
b9e40524
HH		 1119 if (r < 0)
1120 return r;
ea18a4b5
ZJS		 1121
1122 SET_FOREACH(u, units, it) {
1123 r = add_matches_for_unit(j, u);
1124 if (r < 0)
1125 return r;
1126 r = sd_journal_add_disjunction(j);
1127 if (r < 0)
1128 return r;
1129 count ++;
1130 }
b9e40524 1131 }
c3f60ec5 1132
ea18a4b5
ZJS		 1133 strv_free(patterns);
1134 patterns = NULL;
1135
b9e40524 1136 STRV_FOREACH(i, arg_user_units) {
ea18a4b5
ZJS		 1137 _cleanup_free_ char *u = NULL;
1138
1139 u = unit_name_mangle(*i, MANGLE_GLOB);
b9e40524
HH		 1140 if (!u)
1141 return log_oom();
c3f60ec5 1142
ea18a4b5
ZJS		 1143 if (string_is_glob(u)) {
1144 r = strv_push(&patterns, u);
1145 if (r < 0)
1146 return r;
1147 u = NULL;
1148 } else {
1149 r = add_matches_for_user_unit(j, u, getuid());
1150 if (r < 0)
1151 return r;
1152 r = sd_journal_add_disjunction(j);
1153 if (r < 0)
1154 return r;
1155 count ++;
1156 }
1157 }
1158
1159 if (!strv_isempty(patterns)) {
1160 _cleanup_set_free_free_ Set *units = NULL;
1161 Iterator it;
1162 char *u;
b9e40524 1163
ea18a4b5 1164 r = get_possible_units(j, USER_UNITS, patterns, &units);
b9e40524
HH		 1165 if (r < 0)
1166 return r;
1167
ea18a4b5
ZJS		 1168 SET_FOREACH(u, units, it) {
1169 r = add_matches_for_user_unit(j, u, getuid());
1170 if (r < 0)
1171 return r;
1172 r = sd_journal_add_disjunction(j);
1173 if (r < 0)
1174 return r;
1175 count ++;
1176 }
b9e40524 1177 }
c3f60ec5 1178
ea18a4b5
ZJS		 1179 /* Complain if the user request matches but nothing whatsoever was
1180 * found, since otherwise everything would be matched. */
1181 if (!(strv_isempty(arg_system_units) && strv_isempty(arg_user_units)) && count == 0)
1182 return -ENODATA;
1183
cd34b3c6
HH		 1184 r = sd_journal_add_conjunction(j);
1185 if (r < 0)
1186 return r;
1187
c3f60ec5
LP		 1188 return 0;
1189}
1190
941e990d
LP		 1191static int add_priorities(sd_journal *j) {
1192 char match[] = "PRIORITY=0";
1193 int i, r;
941e990d
LP		 1194 assert(j);
1195
1196 if (arg_priorities == 0xFF)
1197 return 0;
1198
1199 for (i = LOG_EMERG; i <= LOG_DEBUG; i++)
1200 if (arg_priorities & (1 << i)) {
1201 match[sizeof(match)-2] = '0' + i;
1202
941e990d
LP		 1203 r = sd_journal_add_match(j, match, strlen(match));
1204 if (r < 0) {
1205 log_error("Failed to add match: %s", strerror(-r));
1206 return r;
1207 }
1208 }
1209
cd34b3c6
HH		 1210 r = sd_journal_add_conjunction(j);
1211 if (r < 0)
1212 return r;
1213
941e990d
LP		 1214 return 0;
1215}
1216
7560fffc
LP		 1217static int setup_keys(void) {
1218#ifdef HAVE_GCRYPT
1219 size_t mpk_size, seed_size, state_size, i;
1220 uint8_t *mpk, *seed, *state;
1221 ssize_t l;
f982e6f7 1222 int fd = -1, r, attr = 0;
7560fffc
LP		 1223 sd_id128_t machine, boot;
1224 char *p = NULL, *k = NULL;
baed47c3 1225 struct FSSHeader h;
14d10188 1226 uint64_t n;
b98e3866
SL		 1227 struct stat st;
1228
1229 r = stat("/var/log/journal", &st);
1230 if (r < 0 && errno != ENOENT && errno != ENOTDIR) {
1231 log_error("stat(\"%s\") failed: %m", "/var/log/journal");
1232 return -errno;
1233 }
1234
1235 if (r < 0 || !S_ISDIR(st.st_mode)) {
1236 log_error("%s is not a directory, must be using persistent logging for FSS.",
1237 "/var/log/journal");
1238 return r < 0 ? -errno : -ENOTDIR;
1239 }
7560fffc
LP		 1240
1241 r = sd_id128_get_machine(&machine);
1242 if (r < 0) {
1243 log_error("Failed to get machine ID: %s", strerror(-r));
1244 return r;
1245 }
1246
1247 r = sd_id128_get_boot(&boot);
1248 if (r < 0) {
1249 log_error("Failed to get boot ID: %s", strerror(-r));
1250 return r;
1251 }
1252
baed47c3 1253 if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss",
7560fffc
LP		 1254 SD_ID128_FORMAT_VAL(machine)) < 0)
1255 return log_oom();
1256
1257 if (access(p, F_OK) >= 0) {
b8547c10
SL		 1258 if (arg_force) {
1259 r = unlink(p);
1260 if (r < 0) {
1261 log_error("unlink(\"%s\") failed: %m", p);
1262 r = -errno;
1263 goto finish;
1264 }
1265 } else {
1266 log_error("Sealing key file %s exists already. (--force to recreate)", p);
1267 r = -EEXIST;
1268 goto finish;
1269 }
7560fffc
LP		 1270 }
1271
baed47c3 1272 if (asprintf(&k, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss.tmp.XXXXXX",
7560fffc
LP		 1273 SD_ID128_FORMAT_VAL(machine)) < 0) {
1274 r = log_oom();
1275 goto finish;
1276 }
1277
1278 mpk_size = FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR);
1279 mpk = alloca(mpk_size);
1280
1281 seed_size = FSPRG_RECOMMENDED_SEEDLEN;
1282 seed = alloca(seed_size);
1283
1284 state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR);
1285 state = alloca(state_size);
1286
1287 fd = open("/dev/random", O_RDONLY|O_CLOEXEC|O_NOCTTY);
1288 if (fd < 0) {
1289 log_error("Failed to open /dev/random: %m");
1290 r = -errno;
1291 goto finish;
1292 }
1293
1294 log_info("Generating seed...");
1295 l = loop_read(fd, seed, seed_size, true);
1296 if (l < 0 || (size_t) l != seed_size) {
1297 log_error("Failed to read random seed: %s", strerror(EIO));
1298 r = -EIO;
1299 goto finish;
1300 }
1301
1302 log_info("Generating key pair...");
1303 FSPRG_GenMK(NULL, mpk, seed, seed_size, FSPRG_RECOMMENDED_SECPAR);
1304
baed47c3 1305 log_info("Generating sealing key...");
7560fffc
LP		 1306 FSPRG_GenState0(state, mpk, seed, seed_size);
1307
baed47c3
LP		 1308 assert(arg_interval > 0);
1309
7560fffc 1310 n = now(CLOCK_REALTIME);
baed47c3 1311 n /= arg_interval;
7560fffc 1312
03e334a1 1313 safe_close(fd);
2d5bdf5b 1314 fd = mkostemp_safe(k, O_WRONLY|O_CLOEXEC);
7560fffc
LP		 1315 if (fd < 0) {
1316 log_error("Failed to open %s: %m", k);
1317 r = -errno;
1318 goto finish;
1319 }
1320
f982e6f7
LP		 1321 /* Enable secure remove, exclusion from dump, synchronous
1322 * writing and in-place updating */
1323 if (ioctl(fd, FS_IOC_GETFLAGS, &attr) < 0)
1324 log_warning("FS_IOC_GETFLAGS failed: %m");
1325
1326 attr |= FS_SECRM_FL|FS_NODUMP_FL|FS_SYNC_FL|FS_NOCOW_FL;
1327
1328 if (ioctl(fd, FS_IOC_SETFLAGS, &attr) < 0)
1329 log_warning("FS_IOC_SETFLAGS failed: %m");
1330
7560fffc
LP		 1331 zero(h);
1332 memcpy(h.signature, "KSHHRHLP", 8);
1333 h.machine_id = machine;
1334 h.boot_id = boot;
1335 h.header_size = htole64(sizeof(h));
baed47c3
LP		 1336 h.start_usec = htole64(n * arg_interval);
1337 h.interval_usec = htole64(arg_interval);
1338 h.fsprg_secpar = htole16(FSPRG_RECOMMENDED_SECPAR);
1339 h.fsprg_state_size = htole64(state_size);
7560fffc
LP		 1340
1341 l = loop_write(fd, &h, sizeof(h), false);
1342 if (l < 0 || (size_t) l != sizeof(h)) {
1343 log_error("Failed to write header: %s", strerror(EIO));
1344 r = -EIO;
1345 goto finish;
1346 }
1347
1348 l = loop_write(fd, state, state_size, false);
1349 if (l < 0 || (size_t) l != state_size) {
1350 log_error("Failed to write state: %s", strerror(EIO));
1351 r = -EIO;
1352 goto finish;
1353 }
1354
1355 if (link(k, p) < 0) {
1356 log_error("Failed to link file: %m");
1357 r = -errno;
1358 goto finish;
1359 }
1360
8481248b 1361 if (on_tty()) {
7560fffc
LP		 1362 fprintf(stderr,
1363 "\n"
baed47c3 1364 "The new key pair has been generated. The " ANSI_HIGHLIGHT_ON "secret sealing key" ANSI_HIGHLIGHT_OFF " has been written to\n"
c05276f2
LP		 1365 "the following local file. This key file is automatically updated when the\n"
1366 "sealing key is advanced. It should not be used on multiple hosts.\n"
7560fffc
LP		 1367 "\n"
1368 "\t%s\n"
1369 "\n"
baed47c3
LP		 1370 "Please write down the following " ANSI_HIGHLIGHT_ON "secret verification key" ANSI_HIGHLIGHT_OFF ". It should be stored\n"
1371 "at a safe location and should not be saved locally on disk.\n"
7560fffc
LP		 1372 "\n\t" ANSI_HIGHLIGHT_RED_ON, p);
1373 fflush(stderr);
1374 }
1375 for (i = 0; i < seed_size; i++) {
1376 if (i > 0 && i % 3 == 0)
1377 putchar('-');
1378 printf("%02x", ((uint8_t*) seed)[i]);
1379 }
1380
baed47c3
LP		 1381 printf("/%llx-%llx\n", (unsigned long long) n, (unsigned long long) arg_interval);
1382
8481248b 1383 if (on_tty()) {
f6a971bc 1384 char tsb[FORMAT_TIMESPAN_MAX], *hn;
7560fffc 1385
baed47c3
LP		 1386 fprintf(stderr,
1387 ANSI_HIGHLIGHT_OFF "\n"
1388 "The sealing key is automatically changed every %s.\n",
2fa4092c 1389 format_timespan(tsb, sizeof(tsb), arg_interval, 0));
f6a971bc
LP		 1390
1391 hn = gethostname_malloc();
1392
1393 if (hn) {
e724b063 1394 hostname_cleanup(hn, false);
adac1c93 1395 fprintf(stderr, "\nThe keys have been generated for host %s/" SD_ID128_FORMAT_STR ".\n", hn, SD_ID128_FORMAT_VAL(machine));
f6a971bc 1396 } else
adac1c93 1397 fprintf(stderr, "\nThe keys have been generated for host " SD_ID128_FORMAT_STR ".\n", SD_ID128_FORMAT_VAL(machine));
f6a971bc
LP		 1398
1399#ifdef HAVE_QRENCODE
cf5a3432 1400 /* If this is not an UTF-8 system don't print any QR codes */
09017585 1401 if (is_locale_utf8()) {
cf5a3432
LP		 1402 fputs("\nTo transfer the verification key to your phone please scan the QR code below:\n\n", stderr);
1403 print_qr_code(stderr, seed, seed_size, n, arg_interval, hn, machine);
1404 }
f6a971bc
LP		 1405#endif
1406 free(hn);
baed47c3 1407 }
7560fffc
LP		 1408
1409 r = 0;
1410
1411finish:
03e334a1 1412 safe_close(fd);
7560fffc
LP		 1413
1414 if (k) {
1415 unlink(k);
1416 free(k);
1417 }
1418
1419 free(p);
1420
1421 return r;
1422#else
feb12d3e
LP		 1423 log_error("Forward-secure sealing not available.");
1424 return -ENOTSUP;
7560fffc
LP		 1425#endif
1426}
1427
beec0085
LP		 1428static int verify(sd_journal *j) {
1429 int r = 0;
1430 Iterator i;
1431 JournalFile *f;
1432
1433 assert(j);
1434
cedb42bb
LP		 1435 log_show_color(true);
1436
beec0085
LP		 1437 HASHMAP_FOREACH(f, j->files, i) {
1438 int k;
2a7b539a 1439 usec_t first, validated, last;
beec0085 1440
56e81f7c 1441#ifdef HAVE_GCRYPT
feb12d3e 1442 if (!arg_verify_key && JOURNAL_HEADER_SEALED(f->header))
cedb42bb 1443 log_notice("Journal file %s has sealing enabled but verification key has not been passed using --verify-key=.", f->path);
56e81f7c 1444#endif
4da416aa 1445
2a7b539a 1446 k = journal_file_verify(f, arg_verify_key, &first, &validated, &last, true);
56e81f7c 1447 if (k == -EINVAL) {
baed47c3 1448 /* If the key was invalid give up right-away. */
56e81f7c
LP		 1449 return k;
1450 } else if (k < 0) {
beec0085 1451 log_warning("FAIL: %s (%s)", f->path, strerror(-k));
56e81f7c 1452 r = k;
6c7be122
LP		 1453 } else {
1454 char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX], c[FORMAT_TIMESPAN_MAX];
beec0085 1455 log_info("PASS: %s", f->path);
6c7be122 1456
c0ca7aee 1457 if (arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) {
2a7b539a 1458 if (validated > 0) {
c0ca7aee 1459 log_info("=> Validated from %s to %s, final %s entries not sealed.",
2a7b539a
LP		 1460 format_timestamp(a, sizeof(a), first),
1461 format_timestamp(b, sizeof(b), validated),
2fa4092c 1462 format_timespan(c, sizeof(c), last > validated ? last - validated : 0, 0));
2a7b539a 1463 } else if (last > 0)
c0ca7aee 1464 log_info("=> No sealing yet, %s of entries not sealed.",
2fa4092c 1465 format_timespan(c, sizeof(c), last - first, 0));
c0ca7aee
LP		 1466 else
1467 log_info("=> No sealing yet, no entries in file.");
1468 }
6c7be122 1469 }
beec0085
LP		 1470 }
1471
1472 return r;
1473}
1474
15804ceb 1475#ifdef HAVE_ACL
6fe391c5
ZJS		 1476static int access_check_var_log_journal(sd_journal *j) {
1477 _cleanup_strv_free_ char **g = NULL;
1478 bool have_access;
1479 int r;
1480
1481 assert(j);
1482
1483 have_access = in_group("systemd-journal") > 0;
1484
1485 if (!have_access) {
1486 /* Let's enumerate all groups from the default ACL of
1487 * the directory, which generally should allow access
1488 * to most journal files too */
1489 r = search_acl_groups(&g, "/var/log/journal/", &have_access);
1490 if (r < 0)
1491 return r;
15804ceb
LP		 1492 }
1493
6fe391c5 1494 if (!have_access) {
4468addc 1495
6fe391c5 1496 if (strv_isempty(g))
3ac251b8
LP		 1497 log_notice("Hint: You are currently not seeing messages from other users and the system.\n"
1498 " Users in the 'systemd-journal' group can see all messages. Pass -q to\n"
1499 " turn off this notice.");
6fe391c5
ZJS		 1500 else {
1501 _cleanup_free_ char *s = NULL;
4468addc 1502
6fe391c5 1503 r = strv_extend(&g, "systemd-journal");
478c8269 1504 if (r < 0)
6fe391c5
ZJS		 1505 return log_oom();
1506
1507 strv_sort(g);
1508 strv_uniq(g);
1509
1510 s = strv_join(g, "', '");
1511 if (!s)
1512 return log_oom();
1513
1514 log_notice("Hint: You are currently not seeing messages from other users and the system.\n"
3ac251b8
LP		 1515 " Users in the groups '%s' can see all messages.\n"
1516 " Pass -q to turn off this notice.", s);
4468addc 1517 }
6fe391c5 1518 }
4468addc 1519
6fe391c5
ZJS		 1520 return 0;
1521}
1522#endif
4468addc 1523
6fe391c5 1524static int access_check(sd_journal *j) {
6fe391c5 1525 Iterator it;
3ac251b8 1526 void *code;
6fe391c5 1527 int r = 0;
4468addc 1528
6fe391c5 1529 assert(j);
4468addc 1530
6fe391c5
ZJS		 1531 if (set_isempty(j->errors)) {
1532 if (hashmap_isempty(j->files))
3ac251b8 1533 log_notice("No journal files were found.");
6fe391c5
ZJS		 1534 return 0;
1535 }
4468addc 1536
3ac251b8 1537 if (set_contains(j->errors, INT_TO_PTR(-EACCES))) {
6fe391c5
ZJS		 1538#ifdef HAVE_ACL
1539 /* If /var/log/journal doesn't even exist,
3ac251b8 1540 * unprivileged users have no access at all */
6fe391c5
ZJS		 1541 if (access("/var/log/journal", F_OK) < 0 &&
1542 geteuid() != 0 &&
1543 in_group("systemd-journal") <= 0) {
3ac251b8
LP		 1544 log_error("Unprivileged users cannot access messages, unless persistent log storage is\n"
1545 "enabled. Users in the 'systemd-journal' group may always access messages.");
6fe391c5
ZJS		 1546 return -EACCES;
1547 }
4468addc 1548
6fe391c5
ZJS		 1549 /* If /var/log/journal exists, try to pring a nice
1550 notice if the user lacks access to it */
1551 if (!arg_quiet && geteuid() != 0) {
1552 r = access_check_var_log_journal(j);
1553 if (r < 0)
1554 return r;
4468addc 1555 }
15804ceb 1556#else
3ac251b8
LP		 1557 if (geteuid() != 0 && in_group("systemd-journal") <= 0) {
1558 log_error("Unprivileged users cannot access messages. Users in the 'systemd-journal' group\n"
1559 "group may access messages.");
1560 return -EACCES;
1561 }
15804ceb 1562#endif
3ac251b8 1563
6fe391c5 1564 if (hashmap_isempty(j->files)) {
3ac251b8 1565 log_error("No journal files were opened due to insufficient permissions.");
6fe391c5
ZJS		 1566 r = -EACCES;
1567 }
1568 }
15804ceb 1569
6fe391c5 1570 SET_FOREACH(code, j->errors, it) {
3ac251b8
LP		 1571 int err;
1572
1573 err = -PTR_TO_INT(code);
6fe391c5 1574 assert(err > 0);
3ac251b8 1575
6fe391c5
ZJS		 1576 if (err != EACCES)
1577 log_warning("Error was encountered while opening journal files: %s",
1578 strerror(err));
1579 }
1580
6fe391c5 1581 return r;
15804ceb
LP		 1582}
1583
a963990f
LP		 1584int main(int argc, char *argv[]) {
1585 int r;
289f910e 1586 _cleanup_journal_close_ sd_journal *j = NULL;
a963990f 1587 bool need_seek = false;
14a65d65 1588 sd_id128_t previous_boot_id;
67e04a48
ZJS		 1589 bool previous_boot_id_valid = false, first_line = true;
1590 int n_shown = 0;
94e0bd7d 1591 bool ellipsized = false;
a963990f 1592
a9cdc94f 1593 setlocale(LC_ALL, "");
a963990f
LP		 1594 log_parse_environment();
1595 log_open();
1596
1597 r = parse_argv(argc, argv);
1598 if (r <= 0)
1599 goto finish;
1600
ed757c0c
LP		 1601 signal(SIGWINCH, columns_lines_cache_reset);
1602
7560fffc 1603 if (arg_action == ACTION_NEW_ID128) {
a963990f
LP		 1604 r = generate_new_id128();
1605 goto finish;
1606 }
1607
7560fffc
LP		 1608 if (arg_action == ACTION_SETUP_KEYS) {
1609 r = setup_keys();
1610 goto finish;
1611 }
1612
844ec79b
ZJS		 1613 if (arg_action == ACTION_UPDATE_CATALOG ||
1614 arg_action == ACTION_LIST_CATALOG ||
1615 arg_action == ACTION_DUMP_CATALOG) {
1616
0db80948 1617 const char* database = CATALOG_DATABASE;
7fd1b19b 1618 _cleanup_free_ char *copy = NULL;
0db80948
ZJS		 1619 if (arg_root) {
1620 copy = strjoin(arg_root, "/", CATALOG_DATABASE, NULL);
3a819b1b 1621 if (!copy) {
0db80948
ZJS		 1622 r = log_oom();
1623 goto finish;
1624 }
1625 path_kill_slashes(copy);
1626 database = copy;
13cbf3a5
ZJS		 1627 }
1628
844ec79b 1629 if (arg_action == ACTION_UPDATE_CATALOG) {
13cbf3a5 1630 r = catalog_update(database, arg_root, catalog_file_dirs);
844ec79b
ZJS		 1631 if (r < 0)
1632 log_error("Failed to list catalog: %s", strerror(-r));
1633 } else {
1634 bool oneline = arg_action == ACTION_LIST_CATALOG;
1635
1636 if (optind < argc)
13cbf3a5 1637 r = catalog_list_items(stdout, database,
844ec79b
ZJS		 1638 oneline, argv + optind);
1639 else
13cbf3a5 1640 r = catalog_list(stdout, database, oneline);
844ec79b
ZJS		 1641 if (r < 0)
1642 log_error("Failed to list catalog: %s", strerror(-r));
1643 }
d4205751 1644
d4205751
LP		 1645 goto finish;
1646 }
1647
a963990f 1648 if (arg_directory)
3f3a438f 1649 r = sd_journal_open_directory(&j, arg_directory, arg_journal_type);
8d98da3f
ZJS		 1650 else if (arg_file)
1651 r = sd_journal_open_files(&j, (const char**) arg_file, 0);
b6741478
LP		 1652 else if (arg_machine)
1653 r = sd_journal_open_container(&j, arg_machine, 0);
a963990f 1654 else
3f3a438f 1655 r = sd_journal_open(&j, !arg_merge*SD_JOURNAL_LOCAL_ONLY + arg_journal_type);
a963990f 1656 if (r < 0) {
8d98da3f
ZJS		 1657 log_error("Failed to open %s: %s",
1658 arg_directory ? arg_directory : arg_file ? "files" : "journal",
1659 strerror(-r));
763c7aa2 1660 return EXIT_FAILURE;
a963990f
LP		 1661 }
1662
6fe391c5
ZJS		 1663 r = access_check(j);
1664 if (r < 0)
1665 return EXIT_FAILURE;
1666
beec0085
LP		 1667 if (arg_action == ACTION_VERIFY) {
1668 r = verify(j);
1669 goto finish;
1670 }
1671
7560fffc 1672 if (arg_action == ACTION_PRINT_HEADER) {
dca6219e 1673 journal_print_header(j);
763c7aa2 1674 return EXIT_SUCCESS;
dca6219e
LP		 1675 }
1676
a1a03e30 1677 if (arg_action == ACTION_DISK_USAGE) {
39883f62 1678 uint64_t bytes = 0;
a1a03e30
LP		 1679 char sbytes[FORMAT_BYTES_MAX];
1680
1681 r = sd_journal_get_usage(j, &bytes);
1682 if (r < 0)
763c7aa2 1683 return EXIT_FAILURE;
a1a03e30 1684
763c7aa2
ZJS		 1685 printf("Journals take up %s on disk.\n",
1686 format_bytes(sbytes, sizeof(sbytes), bytes));
1687 return EXIT_SUCCESS;
a1a03e30
LP		 1688 }
1689
f1188074
ZJS		 1690 if (arg_action == ACTION_LIST_BOOTS) {
1691 r = list_boots(j);
1692 goto finish;
1693 }
1694
a331b5e6
JJ		 1695 /* add_boot() must be called first!
1696 * It may need to seek the journal to find parent boot IDs. */
1697 r = add_boot(j);
a963990f 1698 if (r < 0)
763c7aa2 1699 return EXIT_FAILURE;
a963990f 1700
99271804
ZJS		 1701 r = add_dmesg(j);
1702 if (r < 0)
1703 return EXIT_FAILURE;
1704
b9e40524
HH		 1705 r = add_units(j);
1706 strv_free(arg_system_units);
1707 strv_free(arg_user_units);
1708
ea18a4b5
ZJS		 1709 if (r < 0) {
1710 log_error("Failed to add filter for units: %s", strerror(-r));
763c7aa2 1711 return EXIT_FAILURE;
ea18a4b5 1712 }
c3f60ec5 1713
cd34b3c6 1714 r = add_priorities(j);
ea18a4b5
ZJS		 1715 if (r < 0) {
1716 log_error("Failed to add filter for priorities: %s", strerror(-r));
763c7aa2 1717 return EXIT_FAILURE;
ea18a4b5 1718 }
a963990f 1719
cd34b3c6 1720 r = add_matches(j, argv + optind);
ea18a4b5
ZJS		 1721 if (r < 0) {
1722 log_error("Failed to add filters: %s", strerror(-r));
763c7aa2 1723 return EXIT_FAILURE;
ea18a4b5 1724 }
941e990d 1725
4ad16808
ZJS		 1726 if (_unlikely_(log_get_max_level() >= LOG_PRI(LOG_DEBUG))) {
1727 _cleanup_free_ char *filter;
1728
1729 filter = journal_make_match_string(j);
1730 log_debug("Journal filter: %s", filter);
1731 }
67e04a48 1732
15119c16
LP		 1733 if (arg_field) {
1734 const void *data;
1735 size_t size;
1736
21ae4593
ZJS		 1737 r = sd_journal_set_data_threshold(j, 0);
1738 if (r < 0) {
1739 log_error("Failed to unset data size threshold");
1740 return EXIT_FAILURE;
1741 }
1742
15119c16
LP		 1743 r = sd_journal_query_unique(j, arg_field);
1744 if (r < 0) {
1745 log_error("Failed to query unique data objects: %s", strerror(-r));
763c7aa2 1746 return EXIT_FAILURE;
15119c16
LP		 1747 }
1748
1749 SD_JOURNAL_FOREACH_UNIQUE(j, data, size) {
1750 const void *eq;
1751
67e04a48 1752 if (arg_lines >= 0 && n_shown >= arg_lines)
fd6e8875
LP		 1753 break;
1754
15119c16
LP		 1755 eq = memchr(data, '=', size);
1756 if (eq)
1757 printf("%.*s\n", (int) (size - ((const uint8_t*) eq - (const uint8_t*) data + 1)), (const char*) eq + 1);
1758 else
1759 printf("%.*s\n", (int) size, (const char*) data);
fd6e8875
LP		 1760
1761 n_shown ++;
15119c16
LP		 1762 }
1763
763c7aa2 1764 return EXIT_SUCCESS;
15119c16
LP		 1765 }
1766
8d98da3f
ZJS		 1767 /* Opening the fd now means the first sd_journal_wait() will actually wait */
1768 if (arg_follow) {
1769 r = sd_journal_get_fd(j);
1770 if (r < 0)
1771 return EXIT_FAILURE;
1772 }
1773
248fc619 1774 if (arg_cursor || arg_after_cursor) {
eacbb4d3 1775 r = sd_journal_seek_cursor(j, arg_cursor ?: arg_after_cursor);
08984293 1776 if (r < 0) {
cfbc22ab 1777 log_error("Failed to seek to cursor: %s", strerror(-r));
763c7aa2 1778 return EXIT_FAILURE;
08984293 1779 }
d89d6c86 1780 if (!arg_reverse)
248fc619 1781 r = sd_journal_next_skip(j, 1 + !!arg_after_cursor);
d89d6c86 1782 else
248fc619
ZJS		 1783 r = sd_journal_previous_skip(j, 1 + !!arg_after_cursor);
1784
1785 if (arg_after_cursor && r < 2 && !arg_follow)
1786 /* We couldn't find the next entry after the cursor. */
1787 arg_lines = 0;
08984293 1788
d89d6c86 1789 } else if (arg_since_set && !arg_reverse) {
cfbc22ab 1790 r = sd_journal_seek_realtime_usec(j, arg_since);
8f14c832 1791 if (r < 0) {
cfbc22ab 1792 log_error("Failed to seek to date: %s", strerror(-r));
763c7aa2 1793 return EXIT_FAILURE;
8f14c832 1794 }
8f14c832
LP		 1795 r = sd_journal_next(j);
1796
d89d6c86
LN		 1797 } else if (arg_until_set && arg_reverse) {
1798 r = sd_journal_seek_realtime_usec(j, arg_until);
1799 if (r < 0) {
1800 log_error("Failed to seek to date: %s", strerror(-r));
763c7aa2 1801 return EXIT_FAILURE;
d89d6c86
LN		 1802 }
1803 r = sd_journal_previous(j);
1804
67e04a48 1805 } else if (arg_lines >= 0) {
2100675e
LP		 1806 r = sd_journal_seek_tail(j);
1807 if (r < 0) {
1808 log_error("Failed to seek to tail: %s", strerror(-r));
763c7aa2 1809 return EXIT_FAILURE;
2100675e
LP		 1810 }
1811
1812 r = sd_journal_previous_skip(j, arg_lines);
8f14c832 1813
d89d6c86
LN		 1814 } else if (arg_reverse) {
1815 r = sd_journal_seek_tail(j);
1816 if (r < 0) {
1817 log_error("Failed to seek to tail: %s", strerror(-r));
763c7aa2 1818 return EXIT_FAILURE;
d89d6c86
LN		 1819 }
1820
1821 r = sd_journal_previous(j);
1822
2100675e
LP		 1823 } else {
1824 r = sd_journal_seek_head(j);
1825 if (r < 0) {
1826 log_error("Failed to seek to head: %s", strerror(-r));
763c7aa2 1827 return EXIT_FAILURE;
2100675e 1828 }
6f003b43
LP		 1829
1830 r = sd_journal_next(j);
1831 }
1832
1833 if (r < 0) {
1834 log_error("Failed to iterate through journal: %s", strerror(-r));
763c7aa2 1835 return EXIT_FAILURE;
50f20cfd 1836 }
87d2c1ff 1837
faf5077f
DH		 1838 if (!arg_follow)
1839 pager_open_if_enabled();
0d43c694 1840
cfbc22ab
LP		 1841 if (!arg_quiet) {
1842 usec_t start, end;
1843 char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX];
1844
1845 r = sd_journal_get_cutoff_realtime_usec(j, &start, &end);
1846 if (r < 0) {
1847 log_error("Failed to get cutoff: %s", strerror(-r));
1848 goto finish;
1849 }
1850
1851 if (r > 0) {
1852 if (arg_follow)
9048b11f
LP		 1853 printf("-- Logs begin at %s. --\n",
1854 format_timestamp(start_buf, sizeof(start_buf), start));
cfbc22ab 1855 else
9048b11f 1856 printf("-- Logs begin at %s, end at %s. --\n",
cfbc22ab
LP		 1857 format_timestamp(start_buf, sizeof(start_buf), start),
1858 format_timestamp(end_buf, sizeof(end_buf), end));
1859 }
1860 }
1861
50f20cfd 1862 for (;;) {
67e04a48 1863 while (arg_lines < 0 || n_shown < arg_lines || (arg_follow && !first_line)) {
cfbc22ab
LP		 1864 int flags;
1865
6f003b43 1866 if (need_seek) {
99613ec5 1867 if (!arg_reverse)
d89d6c86
LN		 1868 r = sd_journal_next(j);
1869 else
1870 r = sd_journal_previous(j);
6f003b43
LP		 1871 if (r < 0) {
1872 log_error("Failed to iterate through journal: %s", strerror(-r));
1873 goto finish;
1874 }
a72b6353
ZJS		 1875 if (r == 0)
1876 break;
0d43c694
LP		 1877 }
1878
d89d6c86 1879 if (arg_until_set && !arg_reverse) {
cfbc22ab
LP		 1880 usec_t usec;
1881
1882 r = sd_journal_get_realtime_usec(j, &usec);
1883 if (r < 0) {
1884 log_error("Failed to determine timestamp: %s", strerror(-r));
1885 goto finish;
1886 }
3ba09ee8
PF		 1887 if (usec > arg_until)
1888 goto finish;
cfbc22ab
LP		 1889 }
1890
d89d6c86
LN		 1891 if (arg_since_set && arg_reverse) {
1892 usec_t usec;
1893
1894 r = sd_journal_get_realtime_usec(j, &usec);
1895 if (r < 0) {
1896 log_error("Failed to determine timestamp: %s", strerror(-r));
1897 goto finish;
1898 }
1899 if (usec < arg_since)
1900 goto finish;
1901 }
1902
cd931c0a
LP		 1903 if (!arg_merge) {
1904 sd_id128_t boot_id;
14a65d65 1905
cd931c0a
LP		 1906 r = sd_journal_get_monotonic_usec(j, NULL, &boot_id);
1907 if (r >= 0) {
1908 if (previous_boot_id_valid &&
1909 !sd_id128_equal(boot_id, previous_boot_id))
0b5a519c
DS		 1910 printf("%s-- Reboot --%s\n",
1911 ansi_highlight(), ansi_highlight_off());
cd931c0a
LP		 1912
1913 previous_boot_id = boot_id;
1914 previous_boot_id_valid = true;
1915 }
14a65d65
LP		 1916 }
1917
cfbc22ab 1918 flags =
cd4b13e0 1919 arg_all * OUTPUT_SHOW_ALL |
2b8f6883 1920 arg_full * OUTPUT_FULL_WIDTH |
d4205751
LP		 1921 on_tty() * OUTPUT_COLOR |
1922 arg_catalog * OUTPUT_CATALOG;
cfbc22ab 1923
94e0bd7d 1924 r = output_journal(stdout, j, arg_output, 0, flags, &ellipsized);
a72b6353
ZJS		 1925 need_seek = true;
1926 if (r == -EADDRNOTAVAIL)
1927 break;
1928 else if (r < 0 || ferror(stdout))
72f59706 1929 goto finish;
6f003b43 1930
cfbc22ab 1931 n_shown++;
87d2c1ff
LP		 1932 }
1933
248fc619
ZJS		 1934 if (!arg_follow) {
1935 if (arg_show_cursor) {
1936 _cleanup_free_ char *cursor = NULL;
1937
1938 r = sd_journal_get_cursor(j, &cursor);
1939 if (r < 0 && r != -EADDRNOTAVAIL)
1940 log_error("Failed to get cursor: %s", strerror(-r));
1941 else if (r >= 0)
1942 printf("-- cursor: %s\n", cursor);
1943 }
1944
50f20cfd 1945 break;
248fc619 1946 }
50f20cfd 1947
e02d1cf7 1948 r = sd_journal_wait(j, (uint64_t) -1);
50f20cfd 1949 if (r < 0) {
7a69007a 1950 log_error("Couldn't wait for journal event: %s", strerror(-r));
50f20cfd
LP		 1951 goto finish;
1952 }
67e04a48
ZJS		 1953
1954 first_line = false;
de190aef 1955 }
87d2c1ff
LP		 1956
1957finish:
0d43c694
LP		 1958 pager_close();
1959
a36b8deb
ZJS		 1960 strv_free(arg_file);
1961
3fbf9cbb 1962 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
87d2c1ff 1963}
Unnamed repository; edit this file 'description' to name the repository.