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[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>
74055aa7 34#include <poll.h>
50940700 35#include <sys/stat.h>
f982e6f7 36#include <sys/ioctl.h>
74055aa7 37#include <sys/inotify.h>
f982e6f7 38#include <linux/fs.h>
87d2c1ff 39
4468addc
LP		 40#ifdef HAVE_ACL
41#include <sys/acl.h>
478c8269 42#include "acl-util.h"
4468addc
LP		 43#endif
44
74055aa7
LP		 45#include "sd-journal.h"
46#include "sd-bus.h"
81527be1 47
3fbf9cbb 48#include "log.h"
7199aa96 49#include "logs-show.h"
72f59706 50#include "util.h"
e5124088 51#include "path-util.h"
68fee104 52#include "fileio.h"
0d43c694
LP		 53#include "build.h"
54#include "pager.h"
a963990f 55#include "strv.h"
ea18a4b5 56#include "set.h"
2cf4172a 57#include "sigbus.h"
dca6219e 58#include "journal-internal.h"
7560fffc 59#include "journal-def.h"
0284adc6 60#include "journal-verify.h"
4da416aa 61#include "journal-authenticate.h"
f6a971bc 62#include "journal-qrcode.h"
dbd2a83f 63#include "journal-vacuum.h"
4da416aa 64#include "fsprg.h"
c3f60ec5 65#include "unit-name.h"
d4205751 66#include "catalog.h"
74055aa7
LP		 67#include "mkdir.h"
68#include "bus-util.h"
69#include "bus-error.h"
7560fffc 70
baed47c3 71#define DEFAULT_FSS_INTERVAL_USEC (15*USEC_PER_MINUTE)
250d54b5 72
97e1cc8b
LP		 73enum {
74 /* Special values for arg_lines */
75 ARG_LINES_DEFAULT = -2,
76 ARG_LINES_ALL = -1,
77};
78
df50185b 79static OutputMode arg_output = OUTPUT_SHORT;
9fd29044 80static bool arg_utc = false;
1b12a7b5 81static bool arg_pager_end = false;
72f59706 82static bool arg_follow = false;
2b8f6883 83static bool arg_full = true;
cd4b13e0 84static bool arg_all = false;
0d43c694 85static bool arg_no_pager = false;
97e1cc8b 86static int arg_lines = ARG_LINES_DEFAULT;
e91af489 87static bool arg_no_tail = false;
43673799 88static bool arg_quiet = false;
9e8a535f 89static bool arg_merge = false;
d121b396 90static bool arg_boot = false;
442e2def
LP		 91static sd_id128_t arg_boot_id = {};
92static int arg_boot_offset = 0;
99271804 93static bool arg_dmesg = false;
8f14c832 94static const char *arg_cursor = NULL;
248fc619
ZJS		 95static const char *arg_after_cursor = NULL;
96static bool arg_show_cursor = false;
a963990f 97static const char *arg_directory = NULL;
8d98da3f 98static char **arg_file = NULL;
941e990d 99static int arg_priorities = 0xFF;
baed47c3 100static const char *arg_verify_key = NULL;
feb12d3e 101#ifdef HAVE_GCRYPT
baed47c3 102static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC;
b8547c10 103static bool arg_force = false;
feb12d3e 104#endif
cfbc22ab
LP		 105static usec_t arg_since, arg_until;
106static bool arg_since_set = false, arg_until_set = false;
73083640 107static char **arg_syslog_identifier = NULL;
b9e40524
HH		 108static char **arg_system_units = NULL;
109static char **arg_user_units = NULL;
3c1668da 110static const char *arg_field = NULL;
d4205751 111static bool arg_catalog = false;
d89d6c86 112static bool arg_reverse = false;
3f3a438f 113static int arg_journal_type = 0;
13cbf3a5 114static const char *arg_root = NULL;
b6741478 115static const char *arg_machine = NULL;
dbd2a83f
LP		 116static off_t arg_vacuum_size = (off_t) -1;
117static usec_t arg_vacuum_time = USEC_INFINITY;
50f20cfd 118
7560fffc
LP		 119static enum {
120 ACTION_SHOW,
121 ACTION_NEW_ID128,
122 ACTION_PRINT_HEADER,
beec0085 123 ACTION_SETUP_KEYS,
a1a03e30
LP		 124 ACTION_VERIFY,
125 ACTION_DISK_USAGE,
d4205751 126 ACTION_LIST_CATALOG,
54b7254c 127 ACTION_DUMP_CATALOG,
f1188074
ZJS		 128 ACTION_UPDATE_CATALOG,
129 ACTION_LIST_BOOTS,
74055aa7 130 ACTION_FLUSH,
dbd2a83f 131 ACTION_VACUUM,
7560fffc
LP		 132} arg_action = ACTION_SHOW;
133
a331b5e6
JJ		 134typedef struct boot_id_t {
135 sd_id128_t id;
f1188074
ZJS		 136 uint64_t first;
137 uint64_t last;
a331b5e6
JJ		 138} boot_id_t;
139
faf5077f
DH		 140static void pager_open_if_enabled(void) {
141
142 if (arg_no_pager)
143 return;
144
145 pager_open(arg_pager_end);
146}
147
5ab99e07
LP		 148static char *format_timestamp_maybe_utc(char *buf, size_t l, usec_t t) {
149
150 if (arg_utc)
151 return format_timestamp_utc(buf, l, t);
152
153 return format_timestamp(buf, l, t);
154}
155
442e2def
LP		 156static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset) {
157 sd_id128_t id = SD_ID128_NULL;
158 int off = 0, r;
159
160 if (strlen(x) >= 32) {
161 char *t;
162
163 t = strndupa(x, 32);
164 r = sd_id128_from_string(t, &id);
165 if (r >= 0)
166 x += 32;
167
168 if (*x != '-' && *x != '+' && *x != 0)
169 return -EINVAL;
170
171 if (*x != 0) {
172 r = safe_atoi(x, &off);
173 if (r < 0)
174 return r;
175 }
176 } else {
177 r = safe_atoi(x, &off);
178 if (r < 0)
179 return r;
180 }
181
182 if (boot_id)
183 *boot_id = id;
184
185 if (offset)
186 *offset = off;
187
188 return 0;
189}
190
601185b4 191static void help(void) {
0d43c694 192
faf5077f
DH		 193 pager_open_if_enabled();
194
cd4b13e0 195 printf("%s [OPTIONS...] [MATCHES...]\n\n"
15119c16
LP		 196 "Query the journal.\n\n"
197 "Flags:\n"
eacbb4d3
ZJS		 198 " --system Show the system journal\n"
199 " --user Show the user journal for the current user\n"
b6741478 200 " -M --machine=CONTAINER Operate on local container\n"
40f0b71b
ZJS		 201 " --since=DATE Show entries not older than the specified date\n"
202 " --until=DATE Show entries not newer than the specified date\n"
203 " -c --cursor=CURSOR Show entries starting at the specified cursor\n"
204 " --after-cursor=CURSOR Show entries after the specified cursor\n"
248fc619 205 " --show-cursor Print the cursor after all the entries\n"
40f0b71b 206 " -b --boot[=ID] Show current boot or the specified boot\n"
f1188074 207 " --list-boots Show terse information about recorded boots\n"
c736283b 208 " -k --dmesg Show kernel message log from the current boot\n"
40f0b71b
ZJS		 209 " -u --unit=UNIT Show logs from the specified unit\n"
210 " --user-unit=UNIT Show logs from the specified user unit\n"
211 " -t --identifier=STRING Show entries with the specified syslog identifier\n"
212 " -p --priority=RANGE Show entries with the specified priority\n"
213 " -e --pager-end Immediately jump to the end in the pager\n"
c736283b 214 " -f --follow Follow the journal\n"
248fc619
ZJS		 215 " -n --lines[=INTEGER] Number of journal entries to show\n"
216 " --no-tail Show all lines, even in follow mode\n"
217 " -r --reverse Show the newest entries first\n"
f02d8367 218 " -o --output=STRING Change journal output mode (short, short-iso,\n"
c736283b
JSJ		 219 " short-precise, short-monotonic, verbose,\n"
220 " export, json, json-pretty, json-sse, cat)\n"
9fd29044 221 " --utc Express time in Coordinated Universal Time (UTC)\n"
248fc619 222 " -x --catalog Add message explanations where available\n"
2b8f6883 223 " --no-full Ellipsize fields\n"
248fc619 224 " -a --all Show all fields, including long and unprintable\n"
c736283b 225 " -q --quiet Do not show privilege warning\n"
248fc619
ZJS		 226 " --no-pager Do not pipe output into a pager\n"
227 " -m --merge Show entries from all available journals\n"
228 " -D --directory=PATH Show journal files from directory\n"
229 " --file=PATH Show journal file\n"
230 " --root=ROOT Operate on catalog files underneath the root ROOT\n"
15119c16 231#ifdef HAVE_GCRYPT
248fc619
ZJS		 232 " --interval=TIME Time interval for changing the FSS sealing key\n"
233 " --verify-key=KEY Specify FSS verification key\n"
40f0b71b 234 " --force Override of the FSS key pair with --setup-keys\n"
15119c16
LP		 235#endif
236 "\nCommands:\n"
c736283b 237 " -h --help Show this help text\n"
248fc619 238 " --version Show package version\n"
dbd2a83f 239 " -F --field=FIELD List all values that a specified field takes\n"
c736283b 240 " --new-id128 Generate a new 128-bit ID\n"
c736283b 241 " --disk-usage Show total disk usage of all journal files\n"
40f0b71b
ZJS		 242 " --vacuum-size=BYTES Reduce disk usage below specified size\n"
243 " --vacuum-time=TIME Remove journal files older than specified date\n"
dbd2a83f
LP		 244 " --flush Flush all journal data from /run into /var\n"
245 " --header Show journal header information\n"
40f0b71b 246 " --list-catalog Show all message IDs in the catalog\n"
248fc619
ZJS		 247 " --dump-catalog Show entries in the message catalog\n"
248 " --update-catalog Update the message catalog database\n"
feb12d3e 249#ifdef HAVE_GCRYPT
c736283b 250 " --setup-keys Generate a new FSS key pair\n"
248fc619 251 " --verify Verify journal file consistency\n"
feb12d3e
LP		 252#endif
253 , program_invocation_short_name);
0d43c694
LP		 254}
255
256static int parse_argv(int argc, char *argv[]) {
257
258 enum {
259 ARG_VERSION = 0x100,
e91af489 260 ARG_NO_PAGER,
2b8f6883 261 ARG_NO_FULL,
55ee336c 262 ARG_NO_TAIL,
dca6219e 263 ARG_NEW_ID128,
f1188074 264 ARG_LIST_BOOTS,
3f3a438f
ZJS		 265 ARG_USER,
266 ARG_SYSTEM,
13cbf3a5 267 ARG_ROOT,
7560fffc 268 ARG_HEADER,
beec0085 269 ARG_SETUP_KEYS,
8d98da3f 270 ARG_FILE,
baed47c3 271 ARG_INTERVAL,
4da416aa 272 ARG_VERIFY,
a1a03e30 273 ARG_VERIFY_KEY,
cfbc22ab
LP		 274 ARG_DISK_USAGE,
275 ARG_SINCE,
d4205751 276 ARG_UNTIL,
248fc619
ZJS		 277 ARG_AFTER_CURSOR,
278 ARG_SHOW_CURSOR,
ffa7cd15 279 ARG_USER_UNIT,
d4205751 280 ARG_LIST_CATALOG,
54b7254c 281 ARG_DUMP_CATALOG,
3f3a438f 282 ARG_UPDATE_CATALOG,
b8547c10 283 ARG_FORCE,
9fd29044 284 ARG_UTC,
74055aa7 285 ARG_FLUSH,
dbd2a83f
LP		 286 ARG_VACUUM_SIZE,
287 ARG_VACUUM_TIME,
0d43c694
LP		 288 };
289
290 static const struct option options[] = {
248fc619
ZJS		 291 { "help", no_argument, NULL, 'h' },
292 { "version" , no_argument, NULL, ARG_VERSION },
293 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
294 { "pager-end", no_argument, NULL, 'e' },
295 { "follow", no_argument, NULL, 'f' },
296 { "force", no_argument, NULL, ARG_FORCE },
297 { "output", required_argument, NULL, 'o' },
298 { "all", no_argument, NULL, 'a' },
299 { "full", no_argument, NULL, 'l' },
2b8f6883 300 { "no-full", no_argument, NULL, ARG_NO_FULL },
248fc619
ZJS		 301 { "lines", optional_argument, NULL, 'n' },
302 { "no-tail", no_argument, NULL, ARG_NO_TAIL },
303 { "new-id128", no_argument, NULL, ARG_NEW_ID128 },
304 { "quiet", no_argument, NULL, 'q' },
305 { "merge", no_argument, NULL, 'm' },
306 { "boot", optional_argument, NULL, 'b' },
f1188074 307 { "list-boots", no_argument, NULL, ARG_LIST_BOOTS },
248fc619
ZJS		 308 { "this-boot", optional_argument, NULL, 'b' }, /* deprecated */
309 { "dmesg", no_argument, NULL, 'k' },
310 { "system", no_argument, NULL, ARG_SYSTEM },
311 { "user", no_argument, NULL, ARG_USER },
312 { "directory", required_argument, NULL, 'D' },
313 { "file", required_argument, NULL, ARG_FILE },
314 { "root", required_argument, NULL, ARG_ROOT },
315 { "header", no_argument, NULL, ARG_HEADER },
73083640 316 { "identifier", required_argument, NULL, 't' },
248fc619
ZJS		 317 { "priority", required_argument, NULL, 'p' },
318 { "setup-keys", no_argument, NULL, ARG_SETUP_KEYS },
319 { "interval", required_argument, NULL, ARG_INTERVAL },
320 { "verify", no_argument, NULL, ARG_VERIFY },
321 { "verify-key", required_argument, NULL, ARG_VERIFY_KEY },
322 { "disk-usage", no_argument, NULL, ARG_DISK_USAGE },
323 { "cursor", required_argument, NULL, 'c' },
324 { "after-cursor", required_argument, NULL, ARG_AFTER_CURSOR },
325 { "show-cursor", no_argument, NULL, ARG_SHOW_CURSOR },
326 { "since", required_argument, NULL, ARG_SINCE },
327 { "until", required_argument, NULL, ARG_UNTIL },
328 { "unit", required_argument, NULL, 'u' },
329 { "user-unit", required_argument, NULL, ARG_USER_UNIT },
330 { "field", required_argument, NULL, 'F' },
331 { "catalog", no_argument, NULL, 'x' },
332 { "list-catalog", no_argument, NULL, ARG_LIST_CATALOG },
333 { "dump-catalog", no_argument, NULL, ARG_DUMP_CATALOG },
334 { "update-catalog", no_argument, NULL, ARG_UPDATE_CATALOG },
335 { "reverse", no_argument, NULL, 'r' },
b6741478 336 { "machine", required_argument, NULL, 'M' },
9fd29044 337 { "utc", no_argument, NULL, ARG_UTC },
74055aa7 338 { "flush", no_argument, NULL, ARG_FLUSH },
dbd2a83f
LP		 339 { "vacuum-size", required_argument, NULL, ARG_VACUUM_SIZE },
340 { "vacuum-time", required_argument, NULL, ARG_VACUUM_TIME },
eb9da376 341 {}
0d43c694
LP		 342 };
343
2100675e 344 int c, r;
0d43c694
LP		 345
346 assert(argc >= 0);
347 assert(argv);
348
73083640 349 while ((c = getopt_long(argc, argv, "hefo:aln::qmb::kD:p:c:t:u:F:xrM:", options, NULL)) >= 0)
0d43c694
LP		 350
351 switch (c) {
352
353 case 'h':
601185b4
ZJS		 354 help();
355 return 0;
0d43c694
LP		 356
357 case ARG_VERSION:
358 puts(PACKAGE_STRING);
0d43c694
LP		 359 puts(SYSTEMD_FEATURES);
360 return 0;
361
362 case ARG_NO_PAGER:
363 arg_no_pager = true;
364 break;
365
1b12a7b5
HH		 366 case 'e':
367 arg_pager_end = true;
fe59e38b 368
97e1cc8b 369 if (arg_lines == ARG_LINES_DEFAULT)
fe59e38b
LP		 370 arg_lines = 1000;
371
1b12a7b5
HH		 372 break;
373
0d43c694
LP		 374 case 'f':
375 arg_follow = true;
376 break;
377
378 case 'o':
1705594f 379 arg_output = output_mode_from_string(optarg);
df50185b 380 if (arg_output < 0) {
edfb521a 381 log_error("Unknown output format '%s'.", optarg);
0d43c694
LP		 382 return -EINVAL;
383 }
df50185b 384
edfb521a
ZJS		 385 if (arg_output == OUTPUT_EXPORT ||
386 arg_output == OUTPUT_JSON ||
387 arg_output == OUTPUT_JSON_PRETTY ||
388 arg_output == OUTPUT_JSON_SSE ||
389 arg_output == OUTPUT_CAT)
390 arg_quiet = true;
391
0d43c694
LP		 392 break;
393
98a6e132 394 case 'l':
e3657ecd
ZJS		 395 arg_full = true;
396 break;
397
2b8f6883
ZJS		 398 case ARG_NO_FULL:
399 arg_full = false;
400 break;
401
0d43c694 402 case 'a':
cd4b13e0 403 arg_all = true;
0d43c694
LP		 404 break;
405
2100675e 406 case 'n':
1705594f 407 if (optarg) {
48382487 408 if (streq(optarg, "all"))
97e1cc8b 409 arg_lines = ARG_LINES_ALL;
48382487
JJ		 410 else {
411 r = safe_atoi(optarg, &arg_lines);
412 if (r < 0 || arg_lines < 0) {
413 log_error("Failed to parse lines '%s'", optarg);
414 return -EINVAL;
415 }
1705594f 416 }
96088db0 417 } else {
48382487 418 arg_lines = 10;
96088db0
LP		 419
420 /* Hmm, no argument? Maybe the next
421 * word on the command line is
422 * supposed to be the argument? Let's
423 * see if there is one, and is
48382487
JJ		 424 * parsable. */
425 if (optind < argc) {
426 int n;
427 if (streq(argv[optind], "all")) {
97e1cc8b 428 arg_lines = ARG_LINES_ALL;
48382487
JJ		 429 optind++;
430 } else if (safe_atoi(argv[optind], &n) >= 0 && n >= 0) {
431 arg_lines = n;
432 optind++;
433 }
434 }
96088db0 435 }
1705594f 436
2100675e
LP		 437 break;
438
e91af489
LP		 439 case ARG_NO_TAIL:
440 arg_no_tail = true;
441 break;
442
39f7f5c1 443 case ARG_NEW_ID128:
7560fffc 444 arg_action = ACTION_NEW_ID128;
55ee336c
LP		 445 break;
446
43673799
LP		 447 case 'q':
448 arg_quiet = true;
490e567d 449 break;
43673799 450
9e8a535f
LP		 451 case 'm':
452 arg_merge = true;
2bd3c38a
LP		 453 break;
454
59cea26a 455 case 'b':
d121b396 456 arg_boot = true;
6cebe83c 457
442e2def
LP		 458 if (optarg) {
459 r = parse_boot_descriptor(optarg, &arg_boot_id, &arg_boot_offset);
460 if (r < 0) {
461 log_error("Failed to parse boot descriptor '%s'", optarg);
462 return -EINVAL;
463 }
464 } else {
6cebe83c 465
442e2def
LP		 466 /* Hmm, no argument? Maybe the next
467 * word on the command line is
468 * supposed to be the argument? Let's
469 * see if there is one and is parsable
470 * as a boot descriptor... */
471
472 if (optind < argc &&
473 parse_boot_descriptor(argv[optind], &arg_boot_id, &arg_boot_offset) >= 0)
6cebe83c 474 optind++;
6cebe83c 475 }
d121b396 476
59cea26a
LP		 477 break;
478
f1188074
ZJS		 479 case ARG_LIST_BOOTS:
480 arg_action = ACTION_LIST_BOOTS;
481 break;
482
99271804 483 case 'k':
d121b396 484 arg_boot = arg_dmesg = true;
99271804
ZJS		 485 break;
486
3f3a438f
ZJS		 487 case ARG_SYSTEM:
488 arg_journal_type |= SD_JOURNAL_SYSTEM;
489 break;
490
491 case ARG_USER:
492 arg_journal_type |= SD_JOURNAL_CURRENT_USER;
493 break;
494
b6741478
LP		 495 case 'M':
496 arg_machine = optarg;
497 break;
498
a963990f
LP		 499 case 'D':
500 arg_directory = optarg;
501 break;
502
8d98da3f
ZJS		 503 case ARG_FILE:
504 r = glob_extend(&arg_file, optarg);
23bbb0de
MS		 505 if (r < 0)
506 return log_error_errno(r, "Failed to add paths: %m");
8d98da3f
ZJS		 507 break;
508
13cbf3a5
ZJS		 509 case ARG_ROOT:
510 arg_root = optarg;
511 break;
512
8f14c832
LP		 513 case 'c':
514 arg_cursor = optarg;
515 break;
516
248fc619
ZJS		 517 case ARG_AFTER_CURSOR:
518 arg_after_cursor = optarg;
519 break;
520
521 case ARG_SHOW_CURSOR:
522 arg_show_cursor = true;
523 break;
524
dca6219e 525 case ARG_HEADER:
7560fffc
LP		 526 arg_action = ACTION_PRINT_HEADER;
527 break;
528
feb12d3e
LP		 529 case ARG_VERIFY:
530 arg_action = ACTION_VERIFY;
531 break;
532
a1a03e30
LP		 533 case ARG_DISK_USAGE:
534 arg_action = ACTION_DISK_USAGE;
535 break;
536
dbd2a83f
LP		 537 case ARG_VACUUM_SIZE:
538 r = parse_size(optarg, 1024, &arg_vacuum_size);
539 if (r < 0) {
540 log_error("Failed to parse vacuum size: %s", optarg);
541 return r;
542 }
543
544 arg_action = ACTION_VACUUM;
545 break;
546
547 case ARG_VACUUM_TIME:
548 r = parse_sec(optarg, &arg_vacuum_time);
549 if (r < 0) {
550 log_error("Failed to parse vacuum time: %s", optarg);
551 return r;
552 }
553
554 arg_action = ACTION_VACUUM;
555 break;
556
feb12d3e 557#ifdef HAVE_GCRYPT
b8547c10
SL		 558 case ARG_FORCE:
559 arg_force = true;
560 break;
561
7560fffc
LP		 562 case ARG_SETUP_KEYS:
563 arg_action = ACTION_SETUP_KEYS;
dca6219e
LP		 564 break;
565
beec0085 566
baed47c3 567 case ARG_VERIFY_KEY:
4da416aa 568 arg_action = ACTION_VERIFY;
baed47c3 569 arg_verify_key = optarg;
9e8a535f 570 arg_merge = false;
4da416aa
LP		 571 break;
572
baed47c3 573 case ARG_INTERVAL:
7f602784 574 r = parse_sec(optarg, &arg_interval);
baed47c3
LP		 575 if (r < 0 || arg_interval <= 0) {
576 log_error("Failed to parse sealing key change interval: %s", optarg);
14d10188
LP		 577 return -EINVAL;
578 }
579 break;
feb12d3e
LP		 580#else
581 case ARG_SETUP_KEYS:
582 case ARG_VERIFY_KEY:
583 case ARG_INTERVAL:
b8547c10 584 case ARG_FORCE:
feb12d3e
LP		 585 log_error("Forward-secure sealing not available.");
586 return -ENOTSUP;
587#endif
14d10188 588
941e990d
LP		 589 case 'p': {
590 const char *dots;
591
592 dots = strstr(optarg, "..");
593 if (dots) {
594 char *a;
595 int from, to, i;
596
597 /* a range */
598 a = strndup(optarg, dots - optarg);
599 if (!a)
600 return log_oom();
601
602 from = log_level_from_string(a);
603 to = log_level_from_string(dots + 2);
604 free(a);
605
606 if (from < 0 || to < 0) {
607 log_error("Failed to parse log level range %s", optarg);
608 return -EINVAL;
609 }
610
611 arg_priorities = 0;
612
613 if (from < to) {
614 for (i = from; i <= to; i++)
615 arg_priorities |= 1 << i;
616 } else {
617 for (i = to; i <= from; i++)
618 arg_priorities |= 1 << i;
619 }
620
621 } else {
622 int p, i;
623
624 p = log_level_from_string(optarg);
625 if (p < 0) {
626 log_error("Unknown log level %s", optarg);
627 return -EINVAL;
628 }
629
630 arg_priorities = 0;
631
632 for (i = 0; i <= p; i++)
633 arg_priorities |= 1 << i;
634 }
635
636 break;
637 }
638
cfbc22ab
LP		 639 case ARG_SINCE:
640 r = parse_timestamp(optarg, &arg_since);
641 if (r < 0) {
642 log_error("Failed to parse timestamp: %s", optarg);
643 return -EINVAL;
644 }
645 arg_since_set = true;
646 break;
647
648 case ARG_UNTIL:
649 r = parse_timestamp(optarg, &arg_until);
650 if (r < 0) {
651 log_error("Failed to parse timestamp: %s", optarg);
652 return -EINVAL;
653 }
654 arg_until_set = true;
655 break;
656
73083640
HH		 657 case 't':
658 r = strv_extend(&arg_syslog_identifier, optarg);
659 if (r < 0)
660 return log_oom();
661 break;
662
7199aa96 663 case 'u':
b9e40524
HH		 664 r = strv_extend(&arg_system_units, optarg);
665 if (r < 0)
666 return log_oom();
ffa7cd15
DW		 667 break;
668
7199aa96 669 case ARG_USER_UNIT:
b9e40524
HH		 670 r = strv_extend(&arg_user_units, optarg);
671 if (r < 0)
672 return log_oom();
c3f60ec5
LP		 673 break;
674
15119c16
LP		 675 case 'F':
676 arg_field = optarg;
677 break;
678
d4205751
LP		 679 case 'x':
680 arg_catalog = true;
681 break;
682
683 case ARG_LIST_CATALOG:
684 arg_action = ACTION_LIST_CATALOG;
685 break;
686
54b7254c
ZJS		 687 case ARG_DUMP_CATALOG:
688 arg_action = ACTION_DUMP_CATALOG;
689 break;
690
d4205751
LP		 691 case ARG_UPDATE_CATALOG:
692 arg_action = ACTION_UPDATE_CATALOG;
693 break;
694
d89d6c86
LN		 695 case 'r':
696 arg_reverse = true;
697 break;
698
9fd29044
JS		 699 case ARG_UTC:
700 arg_utc = true;
701 break;
702
74055aa7
LP		 703 case ARG_FLUSH:
704 arg_action = ACTION_FLUSH;
705 break;
706
eb9da376 707 case '?':
0d43c694 708 return -EINVAL;
eb9da376
LP		 709
710 default:
711 assert_not_reached("Unhandled option");
0d43c694 712 }
0d43c694 713
70af7b8a 714 if (arg_follow && !arg_no_tail && !arg_since && arg_lines == ARG_LINES_DEFAULT)
e91af489
LP		 715 arg_lines = 10;
716
b6741478
LP		 717 if (!!arg_directory + !!arg_file + !!arg_machine > 1) {
718 log_error("Please specify either -D/--directory= or --file= or -M/--machine=, not more than one.");
8d98da3f
ZJS		 719 return -EINVAL;
720 }
721
3ba09ee8 722 if (arg_since_set && arg_until_set && arg_since > arg_until) {
cfbc22ab
LP		 723 log_error("--since= must be before --until=.");
724 return -EINVAL;
725 }
726
248fc619
ZJS		 727 if (!!arg_cursor + !!arg_after_cursor + !!arg_since_set > 1) {
728 log_error("Please specify only one of --since=, --cursor=, and --after-cursor.");
cfbc22ab
LP		 729 return -EINVAL;
730 }
731
d89d6c86
LN		 732 if (arg_follow && arg_reverse) {
733 log_error("Please specify either --reverse= or --follow=, not both.");
734 return -EINVAL;
735 }
736
0b6b7c20
ZJS		 737 if (arg_action != ACTION_SHOW && optind < argc) {
738 log_error("Extraneous arguments starting with '%s'", argv[optind]);
739 return -EINVAL;
740 }
741
0d43c694
LP		 742 return 1;
743}
744
39f7f5c1 745static int generate_new_id128(void) {
55ee336c
LP		 746 sd_id128_t id;
747 int r;
748 unsigned i;
749
750 r = sd_id128_randomize(&id);
23bbb0de
MS		 751 if (r < 0)
752 return log_error_errno(r, "Failed to generate ID: %m");
55ee336c
LP		 753
754 printf("As string:\n"
755 SD_ID128_FORMAT_STR "\n\n"
756 "As UUID:\n"
757 "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n\n"
758 "As macro:\n"
d489071f 759 "#define MESSAGE_XYZ SD_ID128_MAKE(",
55ee336c
LP		 760 SD_ID128_FORMAT_VAL(id),
761 SD_ID128_FORMAT_VAL(id));
55ee336c
LP		 762 for (i = 0; i < 16; i++)
763 printf("%02x%s", id.bytes[i], i != 15 ? "," : "");
d489071f 764 fputs(")\n\n", stdout);
55ee336c 765
d489071f
ZJS		 766 printf("As Python constant:\n"
767 ">>> import uuid\n"
768 ">>> MESSAGE_XYZ = uuid.UUID('" SD_ID128_FORMAT_STR "')\n",
769 SD_ID128_FORMAT_VAL(id));
55ee336c
LP		 770
771 return 0;
772}
773
a963990f
LP		 774static int add_matches(sd_journal *j, char **args) {
775 char **i;
4e602943 776 bool have_term = false;
59cea26a 777
a963990f 778 assert(j);
59cea26a 779
a963990f 780 STRV_FOREACH(i, args) {
52aeb63c 781 int r;
59cea26a 782
4e602943
ZJS		 783 if (streq(*i, "+")) {
784 if (!have_term)
785 break;
cbdca852 786 r = sd_journal_add_disjunction(j);
4e602943
ZJS		 787 have_term = false;
788
789 } else if (path_is_absolute(*i)) {
68fee104 790 _cleanup_free_ char *p, *t = NULL, *t2 = NULL;
e5124088 791 const char *path;
68fee104 792 _cleanup_free_ char *interpreter = NULL;
a963990f 793 struct stat st;
e5124088 794
a963990f
LP		 795 p = canonicalize_file_name(*i);
796 path = p ? p : *i;
e5124088 797
4a62c710
MS		 798 if (stat(path, &st) < 0)
799 return log_error_errno(errno, "Couldn't stat file: %m");
e5124088 800
68fee104
ZJS		 801 if (S_ISREG(st.st_mode) && (0111 & st.st_mode)) {
802 if (executable_is_script(path, &interpreter) > 0) {
803 _cleanup_free_ char *comm;
804
2b6bf07d 805 comm = strndup(basename(path), 15);
68fee104
ZJS		 806 if (!comm)
807 return log_oom();
808
809 t = strappend("_COMM=", comm);
810
811 /* Append _EXE only if the interpreter is not a link.
73e231ab 812 Otherwise, it might be outdated often. */
68fee104
ZJS		 813 if (lstat(interpreter, &st) == 0 &&
814 !S_ISLNK(st.st_mode)) {
815 t2 = strappend("_EXE=", interpreter);
816 if (!t2)
817 return log_oom();
818 }
819 } else
820 t = strappend("_EXE=", path);
7de80bfe
KZ		 821 } else if (S_ISCHR(st.st_mode)) {
822 if (asprintf(&t, "_KERNEL_DEVICE=c%u:%u",
823 major(st.st_rdev),
824 minor(st.st_rdev)) < 0)
825 return -ENOMEM;
826 } else if (S_ISBLK(st.st_mode)) {
827 if (asprintf(&t, "_KERNEL_DEVICE=b%u:%u",
828 major(st.st_rdev),
829 minor(st.st_rdev)) < 0)
830 return -ENOMEM;
831 } else {
fb93cf73 832 log_error("File is neither a device node, nor regular file, nor executable: %s", *i);
a963990f 833 return -EINVAL;
50940700 834 }
e5124088 835
b6a34514
LP		 836 if (!t)
837 return log_oom();
838
839 r = sd_journal_add_match(j, t, 0);
68fee104
ZJS		 840 if (t2)
841 r = sd_journal_add_match(j, t2, 0);
4e602943
ZJS		 842 have_term = true;
843
844 } else {
cbdca852 845 r = sd_journal_add_match(j, *i, 0);
4e602943
ZJS		 846 have_term = true;
847 }
e5124088 848
23bbb0de
MS		 849 if (r < 0)
850 return log_error_errno(r, "Failed to add match '%s': %m", *i);
de7b95cd
LP		 851 }
852
4e602943
ZJS		 853 if (!strv_isempty(args) && !have_term) {
854 log_error("\"+\" can only be used between terms");
855 return -EINVAL;
856 }
857
a963990f
LP		 858 return 0;
859}
860
a331b5e6
JJ		 861static int boot_id_cmp(const void *a, const void *b) {
862 uint64_t _a, _b;
863
f1188074
ZJS		 864 _a = ((const boot_id_t *)a)->first;
865 _b = ((const boot_id_t *)b)->first;
a331b5e6
JJ		 866
867 return _a < _b ? -1 : (_a > _b ? 1 : 0);
868}
869
ea7061e4
JJ		 870static int get_boots(sd_journal *j,
871 boot_id_t **boots,
872 unsigned int *count,
873 boot_id_t *query_ref_boot) {
f1188074
ZJS		 874 int r;
875 const void *data;
f1188074 876 size_t length, allocated = 0;
ea7061e4
JJ		 877
878 assert(j);
879 assert(boots);
880 assert(count);
f1188074
ZJS		 881
882 r = sd_journal_query_unique(j, "_BOOT_ID");
883 if (r < 0)
884 return r;
885
ea7061e4 886 *count = 0;
f1188074 887 SD_JOURNAL_FOREACH_UNIQUE(j, data, length) {
ea7061e4
JJ		 888 boot_id_t *id;
889
853bd5cc 890 assert(startswith(data, "_BOOT_ID="));
f1188074 891
ea7061e4 892 if (!GREEDY_REALLOC(*boots, allocated, *count + 1))
f1188074
ZJS		 893 return log_oom();
894
ea7061e4 895 id = *boots + *count;
f1188074
ZJS		 896
897 r = sd_id128_from_string(((const char *)data) + strlen("_BOOT_ID="), &id->id);
898 if (r < 0)
899 continue;
900
901 r = sd_journal_add_match(j, data, length);
902 if (r < 0)
903 return r;
904
905 r = sd_journal_seek_head(j);
906 if (r < 0)
907 return r;
908
909 r = sd_journal_next(j);
910 if (r < 0)
911 return r;
912 else if (r == 0)
913 goto flush;
914
915 r = sd_journal_get_realtime_usec(j, &id->first);
916 if (r < 0)
917 return r;
918
ea7061e4
JJ		 919 if (query_ref_boot) {
920 id->last = 0;
921 if (sd_id128_equal(id->id, query_ref_boot->id))
922 *query_ref_boot = *id;
923 } else {
924 r = sd_journal_seek_tail(j);
925 if (r < 0)
926 return r;
f1188074 927
ea7061e4
JJ		 928 r = sd_journal_previous(j);
929 if (r < 0)
930 return r;
931 else if (r == 0)
932 goto flush;
f1188074 933
ea7061e4
JJ		 934 r = sd_journal_get_realtime_usec(j, &id->last);
935 if (r < 0)
936 return r;
937 }
f1188074 938
ea7061e4 939 (*count)++;
f1188074
ZJS		 940 flush:
941 sd_journal_flush_matches(j);
942 }
943
ea7061e4
JJ		 944 qsort_safe(*boots, *count, sizeof(boot_id_t), boot_id_cmp);
945 return 0;
946}
947
948static int list_boots(sd_journal *j) {
949 int r, w, i;
950 unsigned int count;
951 boot_id_t *id;
952 _cleanup_free_ boot_id_t *all_ids = NULL;
953
954 assert(j);
955
956 r = get_boots(j, &all_ids, &count, NULL);
957 if (r < 0)
958 return r;
959
960 pager_open_if_enabled();
f1188074
ZJS		 961
962 /* numbers are one less, but we need an extra char for the sign */
963 w = DECIMAL_STR_WIDTH(count - 1) + 1;
964
965 for (id = all_ids, i = 0; id < all_ids + count; id++, i++) {
966 char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX];
967
968 printf("% *i " SD_ID128_FORMAT_STR " %s—%s\n",
969 w, i - count + 1,
970 SD_ID128_FORMAT_VAL(id->id),
5ab99e07
LP		 971 format_timestamp_maybe_utc(a, sizeof(a), id->first),
972 format_timestamp_maybe_utc(b, sizeof(b), id->last));
f1188074
ZJS		 973 }
974
975 return 0;
976}
977
ea7061e4 978static int get_boot_id_by_offset(sd_journal *j, sd_id128_t *boot_id, int offset) {
a331b5e6 979 int r;
ea7061e4
JJ		 980 unsigned int count;
981 boot_id_t ref_boot_id = {}, *id;
a331b5e6 982 _cleanup_free_ boot_id_t *all_ids = NULL;
a331b5e6
JJ		 983
984 assert(j);
985 assert(boot_id);
986
ea7061e4
JJ		 987 ref_boot_id.id = *boot_id;
988 r = get_boots(j, &all_ids, &count, &ref_boot_id);
a331b5e6
JJ		 989 if (r < 0)
990 return r;
991
d121b396 992 if (sd_id128_equal(*boot_id, SD_ID128_NULL)) {
ea7061e4 993 if (offset > (int) count || offset <= -(int)count)
d121b396 994 return -EADDRNOTAVAIL;
a331b5e6 995
ea7061e4 996 *boot_id = all_ids[(offset <= 0)*count + offset - 1].id;
d121b396
ZJS		 997 } else {
998 id = bsearch(&ref_boot_id, all_ids, count, sizeof(boot_id_t), boot_id_cmp);
a331b5e6 999
d121b396 1000 if (!id ||
ea7061e4
JJ		 1001 offset <= 0 ? (id - all_ids) + offset < 0 :
1002 (id - all_ids) + offset >= (int) count)
d121b396
ZJS		 1003 return -EADDRNOTAVAIL;
1004
ea7061e4 1005 *boot_id = (id + offset)->id;
d121b396 1006 }
a963990f 1007
a331b5e6
JJ		 1008 return 0;
1009}
1010
1011static int add_boot(sd_journal *j) {
1012 char match[9+32+1] = "_BOOT_ID=";
442e2def 1013 int r;
a331b5e6
JJ		 1014
1015 assert(j);
1016
d121b396 1017 if (!arg_boot)
a331b5e6
JJ		 1018 return 0;
1019
442e2def 1020 if (arg_boot_offset == 0 && sd_id128_equal(arg_boot_id, SD_ID128_NULL))
b6741478 1021 return add_match_this_boot(j, arg_machine);
a331b5e6 1022
ea7061e4 1023 r = get_boot_id_by_offset(j, &arg_boot_id, arg_boot_offset);
a331b5e6 1024 if (r < 0) {
442e2def 1025 if (sd_id128_equal(arg_boot_id, SD_ID128_NULL))
da927ba9 1026 log_error_errno(r, "Failed to look up boot %+i: %m", arg_boot_offset);
d121b396 1027 else
442e2def
LP		 1028 log_error("Failed to look up boot ID "SD_ID128_FORMAT_STR"%+i: %s",
1029 SD_ID128_FORMAT_VAL(arg_boot_id), arg_boot_offset, strerror(-r));
a331b5e6 1030 return r;
a331b5e6
JJ		 1031 }
1032
442e2def 1033 sd_id128_to_string(arg_boot_id, match + 9);
d121b396
ZJS		 1034
1035 r = sd_journal_add_match(j, match, sizeof(match) - 1);
23bbb0de
MS		 1036 if (r < 0)
1037 return log_error_errno(r, "Failed to add match: %m");
a331b5e6
JJ		 1038
1039 r = sd_journal_add_conjunction(j);
1040 if (r < 0)
1041 return r;
1042
1043 return 0;
a963990f
LP		 1044}
1045
99271804
ZJS		 1046static int add_dmesg(sd_journal *j) {
1047 int r;
1048 assert(j);
1049
1050 if (!arg_dmesg)
1051 return 0;
1052
1053 r = sd_journal_add_match(j, "_TRANSPORT=kernel", strlen("_TRANSPORT=kernel"));
23bbb0de
MS		 1054 if (r < 0)
1055 return log_error_errno(r, "Failed to add match: %m");
99271804
ZJS		 1056
1057 r = sd_journal_add_conjunction(j);
1058 if (r < 0)
1059 return r;
1060
1061 return 0;
1062}
1063
ea18a4b5
ZJS		 1064static int get_possible_units(sd_journal *j,
1065 const char *fields,
1066 char **patterns,
1067 Set **units) {
1068 _cleanup_set_free_free_ Set *found;
1069 const char *field;
c3f60ec5 1070 int r;
ea18a4b5 1071
d5099efc 1072 found = set_new(&string_hash_ops);
ea18a4b5
ZJS		 1073 if (!found)
1074 return log_oom();
1075
1076 NULSTR_FOREACH(field, fields) {
1077 const void *data;
1078 size_t size;
1079
1080 r = sd_journal_query_unique(j, field);
1081 if (r < 0)
1082 return r;
1083
1084 SD_JOURNAL_FOREACH_UNIQUE(j, data, size) {
1085 char **pattern, *eq;
1086 size_t prefix;
1087 _cleanup_free_ char *u = NULL;
1088
1089 eq = memchr(data, '=', size);
1090 if (eq)
1091 prefix = eq - (char*) data + 1;
1092 else
1093 prefix = 0;
1094
1095 u = strndup((char*) data + prefix, size - prefix);
1096 if (!u)
1097 return log_oom();
1098
1099 STRV_FOREACH(pattern, patterns)
1100 if (fnmatch(*pattern, u, FNM_NOESCAPE) == 0) {
1101 log_debug("Matched %s with pattern %s=%s", u, field, *pattern);
1102
1103 r = set_consume(found, u);
1104 u = NULL;
1105 if (r < 0 && r != -EEXIST)
1106 return r;
1107
1108 break;
1109 }
1110 }
1111 }
1112
1113 *units = found;
1114 found = NULL;
1115 return 0;
1116}
1117
1118/* This list is supposed to return the superset of unit names
1119 * possibly matched by rules added with add_matches_for_unit... */
1120#define SYSTEM_UNITS \
1121 "_SYSTEMD_UNIT\0" \
1122 "COREDUMP_UNIT\0" \
1123 "UNIT\0" \
1124 "OBJECT_SYSTEMD_UNIT\0" \
1125 "_SYSTEMD_SLICE\0"
1126
1127/* ... and add_matches_for_user_unit */
1128#define USER_UNITS \
1129 "_SYSTEMD_USER_UNIT\0" \
1130 "USER_UNIT\0" \
1131 "COREDUMP_USER_UNIT\0" \
1132 "OBJECT_SYSTEMD_USER_UNIT\0"
1133
1134static int add_units(sd_journal *j) {
1135 _cleanup_strv_free_ char **patterns = NULL;
1136 int r, count = 0;
b9e40524 1137 char **i;
c3f60ec5
LP		 1138
1139 assert(j);
1140
b9e40524 1141 STRV_FOREACH(i, arg_system_units) {
ea18a4b5
ZJS		 1142 _cleanup_free_ char *u = NULL;
1143
1144 u = unit_name_mangle(*i, MANGLE_GLOB);
b9e40524
HH		 1145 if (!u)
1146 return log_oom();
ea18a4b5
ZJS		 1147
1148 if (string_is_glob(u)) {
1149 r = strv_push(&patterns, u);
1150 if (r < 0)
1151 return r;
1152 u = NULL;
1153 } else {
1154 r = add_matches_for_unit(j, u);
1155 if (r < 0)
1156 return r;
1157 r = sd_journal_add_disjunction(j);
1158 if (r < 0)
1159 return r;
1160 count ++;
1161 }
1162 }
1163
1164 if (!strv_isempty(patterns)) {
1165 _cleanup_set_free_free_ Set *units = NULL;
1166 Iterator it;
1167 char *u;
1168
1169 r = get_possible_units(j, SYSTEM_UNITS, patterns, &units);
b9e40524
HH		 1170 if (r < 0)
1171 return r;
ea18a4b5
ZJS		 1172
1173 SET_FOREACH(u, units, it) {
1174 r = add_matches_for_unit(j, u);
1175 if (r < 0)
1176 return r;
1177 r = sd_journal_add_disjunction(j);
1178 if (r < 0)
1179 return r;
1180 count ++;
1181 }
b9e40524 1182 }
c3f60ec5 1183
ea18a4b5
ZJS		 1184 strv_free(patterns);
1185 patterns = NULL;
1186
b9e40524 1187 STRV_FOREACH(i, arg_user_units) {
ea18a4b5
ZJS		 1188 _cleanup_free_ char *u = NULL;
1189
1190 u = unit_name_mangle(*i, MANGLE_GLOB);
b9e40524
HH		 1191 if (!u)
1192 return log_oom();
c3f60ec5 1193
ea18a4b5
ZJS		 1194 if (string_is_glob(u)) {
1195 r = strv_push(&patterns, u);
1196 if (r < 0)
1197 return r;
1198 u = NULL;
1199 } else {
1200 r = add_matches_for_user_unit(j, u, getuid());
1201 if (r < 0)
1202 return r;
1203 r = sd_journal_add_disjunction(j);
1204 if (r < 0)
1205 return r;
1206 count ++;
1207 }
1208 }
1209
1210 if (!strv_isempty(patterns)) {
1211 _cleanup_set_free_free_ Set *units = NULL;
1212 Iterator it;
1213 char *u;
b9e40524 1214
ea18a4b5 1215 r = get_possible_units(j, USER_UNITS, patterns, &units);
b9e40524
HH		 1216 if (r < 0)
1217 return r;
1218
ea18a4b5
ZJS		 1219 SET_FOREACH(u, units, it) {
1220 r = add_matches_for_user_unit(j, u, getuid());
1221 if (r < 0)
1222 return r;
1223 r = sd_journal_add_disjunction(j);
1224 if (r < 0)
1225 return r;
1226 count ++;
1227 }
b9e40524 1228 }
c3f60ec5 1229
ea18a4b5
ZJS		 1230 /* Complain if the user request matches but nothing whatsoever was
1231 * found, since otherwise everything would be matched. */
1232 if (!(strv_isempty(arg_system_units) && strv_isempty(arg_user_units)) && count == 0)
1233 return -ENODATA;
1234
cd34b3c6
HH		 1235 r = sd_journal_add_conjunction(j);
1236 if (r < 0)
1237 return r;
1238
c3f60ec5
LP		 1239 return 0;
1240}
1241
941e990d
LP		 1242static int add_priorities(sd_journal *j) {
1243 char match[] = "PRIORITY=0";
1244 int i, r;
941e990d
LP		 1245 assert(j);
1246
1247 if (arg_priorities == 0xFF)
1248 return 0;
1249
1250 for (i = LOG_EMERG; i <= LOG_DEBUG; i++)
1251 if (arg_priorities & (1 << i)) {
1252 match[sizeof(match)-2] = '0' + i;
1253
941e990d 1254 r = sd_journal_add_match(j, match, strlen(match));
23bbb0de
MS		 1255 if (r < 0)
1256 return log_error_errno(r, "Failed to add match: %m");
941e990d
LP		 1257 }
1258
cd34b3c6
HH		 1259 r = sd_journal_add_conjunction(j);
1260 if (r < 0)
1261 return r;
1262
941e990d
LP		 1263 return 0;
1264}
1265
73083640
HH		 1266
1267static int add_syslog_identifier(sd_journal *j) {
1268 int r;
1269 char **i;
1270
1271 assert(j);
1272
1273 STRV_FOREACH(i, arg_syslog_identifier) {
1274 char *u;
1275
1276 u = strappenda("SYSLOG_IDENTIFIER=", *i);
1277 r = sd_journal_add_match(j, u, 0);
1278 if (r < 0)
1279 return r;
1280 r = sd_journal_add_disjunction(j);
1281 if (r < 0)
1282 return r;
1283 }
1284
1285 r = sd_journal_add_conjunction(j);
1286 if (r < 0)
1287 return r;
1288
1289 return 0;
1290}
1291
7560fffc
LP		 1292static int setup_keys(void) {
1293#ifdef HAVE_GCRYPT
1294 size_t mpk_size, seed_size, state_size, i;
1295 uint8_t *mpk, *seed, *state;
1296 ssize_t l;
11689d2a 1297 int fd = -1, r;
7560fffc
LP		 1298 sd_id128_t machine, boot;
1299 char *p = NULL, *k = NULL;
baed47c3 1300 struct FSSHeader h;
14d10188 1301 uint64_t n;
b98e3866
SL		 1302 struct stat st;
1303
1304 r = stat("/var/log/journal", &st);
4a62c710
MS		 1305 if (r < 0 && errno != ENOENT && errno != ENOTDIR)
1306 return log_error_errno(errno, "stat(\"%s\") failed: %m", "/var/log/journal");
b98e3866
SL		 1307
1308 if (r < 0 || !S_ISDIR(st.st_mode)) {
1309 log_error("%s is not a directory, must be using persistent logging for FSS.",
1310 "/var/log/journal");
1311 return r < 0 ? -errno : -ENOTDIR;
1312 }
7560fffc
LP		 1313
1314 r = sd_id128_get_machine(&machine);
23bbb0de
MS		 1315 if (r < 0)
1316 return log_error_errno(r, "Failed to get machine ID: %m");
7560fffc
LP		 1317
1318 r = sd_id128_get_boot(&boot);
23bbb0de
MS		 1319 if (r < 0)
1320 return log_error_errno(r, "Failed to get boot ID: %m");
7560fffc 1321
baed47c3 1322 if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss",
7560fffc
LP		 1323 SD_ID128_FORMAT_VAL(machine)) < 0)
1324 return log_oom();
1325
1326 if (access(p, F_OK) >= 0) {
b8547c10
SL		 1327 if (arg_force) {
1328 r = unlink(p);
1329 if (r < 0) {
56f64d95 1330 log_error_errno(errno, "unlink(\"%s\") failed: %m", p);
b8547c10
SL		 1331 r = -errno;
1332 goto finish;
1333 }
1334 } else {
1335 log_error("Sealing key file %s exists already. (--force to recreate)", p);
1336 r = -EEXIST;
1337 goto finish;
1338 }
7560fffc
LP		 1339 }
1340
baed47c3 1341 if (asprintf(&k, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss.tmp.XXXXXX",
7560fffc
LP		 1342 SD_ID128_FORMAT_VAL(machine)) < 0) {
1343 r = log_oom();
1344 goto finish;
1345 }
1346
1347 mpk_size = FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR);
1348 mpk = alloca(mpk_size);
1349
1350 seed_size = FSPRG_RECOMMENDED_SEEDLEN;
1351 seed = alloca(seed_size);
1352
1353 state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR);
1354 state = alloca(state_size);
1355
1356 fd = open("/dev/random", O_RDONLY|O_CLOEXEC|O_NOCTTY);
1357 if (fd < 0) {
56f64d95 1358 log_error_errno(errno, "Failed to open /dev/random: %m");
7560fffc
LP		 1359 r = -errno;
1360 goto finish;
1361 }
1362
1363 log_info("Generating seed...");
1364 l = loop_read(fd, seed, seed_size, true);
1365 if (l < 0 || (size_t) l != seed_size) {
279d3c9c 1366 log_error_errno(EIO, "Failed to read random seed: %m");
7560fffc
LP		 1367 r = -EIO;
1368 goto finish;
1369 }
1370
1371 log_info("Generating key pair...");
1372 FSPRG_GenMK(NULL, mpk, seed, seed_size, FSPRG_RECOMMENDED_SECPAR);
1373
baed47c3 1374 log_info("Generating sealing key...");
7560fffc
LP		 1375 FSPRG_GenState0(state, mpk, seed, seed_size);
1376
baed47c3
LP		 1377 assert(arg_interval > 0);
1378
7560fffc 1379 n = now(CLOCK_REALTIME);
baed47c3 1380 n /= arg_interval;
7560fffc 1381
03e334a1 1382 safe_close(fd);
2d5bdf5b 1383 fd = mkostemp_safe(k, O_WRONLY|O_CLOEXEC);
7560fffc 1384 if (fd < 0) {
56f64d95 1385 log_error_errno(errno, "Failed to open %s: %m", k);
7560fffc
LP		 1386 r = -errno;
1387 goto finish;
1388 }
1389
f982e6f7
LP		 1390 /* Enable secure remove, exclusion from dump, synchronous
1391 * writing and in-place updating */
11689d2a
LP		 1392 r = chattr_fd(fd, true, FS_SECRM_FL|FS_NODUMP_FL|FS_SYNC_FL|FS_NOCOW_FL);
1393 if (r < 0)
1394 log_warning_errno(errno, "Failed to set file attributes: %m");
f982e6f7 1395
7560fffc
LP		 1396 zero(h);
1397 memcpy(h.signature, "KSHHRHLP", 8);
1398 h.machine_id = machine;
1399 h.boot_id = boot;
1400 h.header_size = htole64(sizeof(h));
baed47c3
LP		 1401 h.start_usec = htole64(n * arg_interval);
1402 h.interval_usec = htole64(arg_interval);
1403 h.fsprg_secpar = htole16(FSPRG_RECOMMENDED_SECPAR);
1404 h.fsprg_state_size = htole64(state_size);
7560fffc 1405
553acb7b
ZJS		 1406 r = loop_write(fd, &h, sizeof(h), false);
1407 if (r < 0) {
1408 log_error_errno(r, "Failed to write header: %m");
7560fffc
LP		 1409 goto finish;
1410 }
1411
553acb7b
ZJS		 1412 r = loop_write(fd, state, state_size, false);
1413 if (r < 0) {
1414 log_error_errno(r, "Failed to write state: %m");
7560fffc
LP		 1415 goto finish;
1416 }
1417
1418 if (link(k, p) < 0) {
56f64d95 1419 log_error_errno(errno, "Failed to link file: %m");
7560fffc
LP		 1420 r = -errno;
1421 goto finish;
1422 }
1423
8481248b 1424 if (on_tty()) {
7560fffc
LP		 1425 fprintf(stderr,
1426 "\n"
baed47c3 1427 "The new key pair has been generated. The " ANSI_HIGHLIGHT_ON "secret sealing key" ANSI_HIGHLIGHT_OFF " has been written to\n"
c05276f2
LP		 1428 "the following local file. This key file is automatically updated when the\n"
1429 "sealing key is advanced. It should not be used on multiple hosts.\n"
7560fffc
LP		 1430 "\n"
1431 "\t%s\n"
1432 "\n"
baed47c3
LP		 1433 "Please write down the following " ANSI_HIGHLIGHT_ON "secret verification key" ANSI_HIGHLIGHT_OFF ". It should be stored\n"
1434 "at a safe location and should not be saved locally on disk.\n"
7560fffc
LP		 1435 "\n\t" ANSI_HIGHLIGHT_RED_ON, p);
1436 fflush(stderr);
1437 }
1438 for (i = 0; i < seed_size; i++) {
1439 if (i > 0 && i % 3 == 0)
1440 putchar('-');
1441 printf("%02x", ((uint8_t*) seed)[i]);
1442 }
1443
baed47c3
LP		 1444 printf("/%llx-%llx\n", (unsigned long long) n, (unsigned long long) arg_interval);
1445
8481248b 1446 if (on_tty()) {
f6a971bc 1447 char tsb[FORMAT_TIMESPAN_MAX], *hn;
7560fffc 1448
baed47c3
LP		 1449 fprintf(stderr,
1450 ANSI_HIGHLIGHT_OFF "\n"
1451 "The sealing key is automatically changed every %s.\n",
2fa4092c 1452 format_timespan(tsb, sizeof(tsb), arg_interval, 0));
f6a971bc
LP		 1453
1454 hn = gethostname_malloc();
1455
1456 if (hn) {
e724b063 1457 hostname_cleanup(hn, false);
adac1c93 1458 fprintf(stderr, "\nThe keys have been generated for host %s/" SD_ID128_FORMAT_STR ".\n", hn, SD_ID128_FORMAT_VAL(machine));
f6a971bc 1459 } else
adac1c93 1460 fprintf(stderr, "\nThe keys have been generated for host " SD_ID128_FORMAT_STR ".\n", SD_ID128_FORMAT_VAL(machine));
f6a971bc
LP		 1461
1462#ifdef HAVE_QRENCODE
cf5a3432 1463 /* If this is not an UTF-8 system don't print any QR codes */
09017585 1464 if (is_locale_utf8()) {
cf5a3432
LP		 1465 fputs("\nTo transfer the verification key to your phone please scan the QR code below:\n\n", stderr);
1466 print_qr_code(stderr, seed, seed_size, n, arg_interval, hn, machine);
1467 }
f6a971bc
LP		 1468#endif
1469 free(hn);
baed47c3 1470 }
7560fffc
LP		 1471
1472 r = 0;
1473
1474finish:
03e334a1 1475 safe_close(fd);
7560fffc
LP		 1476
1477 if (k) {
1478 unlink(k);
1479 free(k);
1480 }
1481
1482 free(p);
1483
1484 return r;
1485#else
feb12d3e
LP		 1486 log_error("Forward-secure sealing not available.");
1487 return -ENOTSUP;
7560fffc
LP		 1488#endif
1489}
1490
beec0085
LP		 1491static int verify(sd_journal *j) {
1492 int r = 0;
1493 Iterator i;
1494 JournalFile *f;
1495
1496 assert(j);
1497
cedb42bb
LP		 1498 log_show_color(true);
1499
c1f906bd 1500 ORDERED_HASHMAP_FOREACH(f, j->files, i) {
beec0085 1501 int k;
2a7b539a 1502 usec_t first, validated, last;
beec0085 1503
56e81f7c 1504#ifdef HAVE_GCRYPT
feb12d3e 1505 if (!arg_verify_key && JOURNAL_HEADER_SEALED(f->header))
cedb42bb 1506 log_notice("Journal file %s has sealing enabled but verification key has not been passed using --verify-key=.", f->path);
56e81f7c 1507#endif
4da416aa 1508
2a7b539a 1509 k = journal_file_verify(f, arg_verify_key, &first, &validated, &last, true);
56e81f7c 1510 if (k == -EINVAL) {
baed47c3 1511 /* If the key was invalid give up right-away. */
56e81f7c
LP		 1512 return k;
1513 } else if (k < 0) {
beec0085 1514 log_warning("FAIL: %s (%s)", f->path, strerror(-k));
56e81f7c 1515 r = k;
6c7be122
LP		 1516 } else {
1517 char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX], c[FORMAT_TIMESPAN_MAX];
beec0085 1518 log_info("PASS: %s", f->path);
6c7be122 1519
c0ca7aee 1520 if (arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) {
2a7b539a 1521 if (validated > 0) {
c0ca7aee 1522 log_info("=> Validated from %s to %s, final %s entries not sealed.",
5ab99e07
LP		 1523 format_timestamp_maybe_utc(a, sizeof(a), first),
1524 format_timestamp_maybe_utc(b, sizeof(b), validated),
2fa4092c 1525 format_timespan(c, sizeof(c), last > validated ? last - validated : 0, 0));
2a7b539a 1526 } else if (last > 0)
c0ca7aee 1527 log_info("=> No sealing yet, %s of entries not sealed.",
2fa4092c 1528 format_timespan(c, sizeof(c), last - first, 0));
c0ca7aee
LP		 1529 else
1530 log_info("=> No sealing yet, no entries in file.");
1531 }
6c7be122 1532 }
beec0085
LP		 1533 }
1534
1535 return r;
1536}
1537
15804ceb 1538#ifdef HAVE_ACL
6fe391c5
ZJS		 1539static int access_check_var_log_journal(sd_journal *j) {
1540 _cleanup_strv_free_ char **g = NULL;
1541 bool have_access;
1542 int r;
1543
1544 assert(j);
1545
1546 have_access = in_group("systemd-journal") > 0;
1547
1548 if (!have_access) {
1549 /* Let's enumerate all groups from the default ACL of
1550 * the directory, which generally should allow access
1551 * to most journal files too */
1552 r = search_acl_groups(&g, "/var/log/journal/", &have_access);
1553 if (r < 0)
1554 return r;
15804ceb
LP		 1555 }
1556
6fe391c5 1557 if (!have_access) {
4468addc 1558
6fe391c5 1559 if (strv_isempty(g))
3ac251b8
LP		 1560 log_notice("Hint: You are currently not seeing messages from other users and the system.\n"
1561 " Users in the 'systemd-journal' group can see all messages. Pass -q to\n"
1562 " turn off this notice.");
6fe391c5
ZJS		 1563 else {
1564 _cleanup_free_ char *s = NULL;
4468addc 1565
6fe391c5 1566 r = strv_extend(&g, "systemd-journal");
478c8269 1567 if (r < 0)
6fe391c5
ZJS		 1568 return log_oom();
1569
1570 strv_sort(g);
1571 strv_uniq(g);
1572
1573 s = strv_join(g, "', '");
1574 if (!s)
1575 return log_oom();
1576
1577 log_notice("Hint: You are currently not seeing messages from other users and the system.\n"
3ac251b8
LP		 1578 " Users in the groups '%s' can see all messages.\n"
1579 " Pass -q to turn off this notice.", s);
4468addc 1580 }
6fe391c5 1581 }
4468addc 1582
6fe391c5
ZJS		 1583 return 0;
1584}
1585#endif
4468addc 1586
6fe391c5 1587static int access_check(sd_journal *j) {
6fe391c5 1588 Iterator it;
3ac251b8 1589 void *code;
6fe391c5 1590 int r = 0;
4468addc 1591
6fe391c5 1592 assert(j);
4468addc 1593
6fe391c5 1594 if (set_isempty(j->errors)) {
c1f906bd 1595 if (ordered_hashmap_isempty(j->files))
3ac251b8 1596 log_notice("No journal files were found.");
6fe391c5
ZJS		 1597 return 0;
1598 }
4468addc 1599
3ac251b8 1600 if (set_contains(j->errors, INT_TO_PTR(-EACCES))) {
6fe391c5
ZJS		 1601#ifdef HAVE_ACL
1602 /* If /var/log/journal doesn't even exist,
3ac251b8 1603 * unprivileged users have no access at all */
6fe391c5
ZJS		 1604 if (access("/var/log/journal", F_OK) < 0 &&
1605 geteuid() != 0 &&
1606 in_group("systemd-journal") <= 0) {
3ac251b8
LP		 1607 log_error("Unprivileged users cannot access messages, unless persistent log storage is\n"
1608 "enabled. Users in the 'systemd-journal' group may always access messages.");
6fe391c5
ZJS		 1609 return -EACCES;
1610 }
4468addc 1611
6fe391c5
ZJS		 1612 /* If /var/log/journal exists, try to pring a nice
1613 notice if the user lacks access to it */
1614 if (!arg_quiet && geteuid() != 0) {
1615 r = access_check_var_log_journal(j);
1616 if (r < 0)
1617 return r;
4468addc 1618 }
15804ceb 1619#else
3ac251b8
LP		 1620 if (geteuid() != 0 && in_group("systemd-journal") <= 0) {
1621 log_error("Unprivileged users cannot access messages. Users in the 'systemd-journal' group\n"
1622 "group may access messages.");
1623 return -EACCES;
1624 }
15804ceb 1625#endif
3ac251b8 1626
c1f906bd 1627 if (ordered_hashmap_isempty(j->files)) {
3ac251b8 1628 log_error("No journal files were opened due to insufficient permissions.");
6fe391c5
ZJS		 1629 r = -EACCES;
1630 }
1631 }
15804ceb 1632
6fe391c5 1633 SET_FOREACH(code, j->errors, it) {
3ac251b8
LP		 1634 int err;
1635
1636 err = -PTR_TO_INT(code);
6fe391c5 1637 assert(err > 0);
3ac251b8 1638
6fe391c5 1639 if (err != EACCES)
c33b3297 1640 log_warning_errno(err, "Error was encountered while opening journal files: %m");
6fe391c5
ZJS		 1641 }
1642
6fe391c5 1643 return r;
15804ceb
LP		 1644}
1645
74055aa7
LP		 1646static int flush_to_var(void) {
1647 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
1648 _cleanup_bus_close_unref_ sd_bus *bus = NULL;
1649 _cleanup_close_ int watch_fd = -1;
1650 int r;
1651
1652 /* Quick exit */
1653 if (access("/run/systemd/journal/flushed", F_OK) >= 0)
1654 return 0;
1655
1656 /* OK, let's actually do the full logic, send SIGUSR1 to the
1657 * daemon and set up inotify to wait for the flushed file to appear */
1658 r = bus_open_system_systemd(&bus);
23bbb0de
MS		 1659 if (r < 0)
1660 return log_error_errno(r, "Failed to get D-Bus connection: %m");
74055aa7
LP		 1661
1662 r = sd_bus_call_method(
1663 bus,
1664 "org.freedesktop.systemd1",
1665 "/org/freedesktop/systemd1",
1666 "org.freedesktop.systemd1.Manager",
1667 "KillUnit",
1668 &error,
1669 NULL,
1670 "ssi", "systemd-journald.service", "main", SIGUSR1);
1671 if (r < 0) {
1672 log_error("Failed to kill journal service: %s", bus_error_message(&error, r));
1673 return r;
1674 }
1675
1676 mkdir_p("/run/systemd/journal", 0755);
1677
1678 watch_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
4a62c710
MS		 1679 if (watch_fd < 0)
1680 return log_error_errno(errno, "Failed to create inotify watch: %m");
74055aa7
LP		 1681
1682 r = inotify_add_watch(watch_fd, "/run/systemd/journal", IN_CREATE|IN_DONT_FOLLOW|IN_ONLYDIR);
4a62c710
MS		 1683 if (r < 0)
1684 return log_error_errno(errno, "Failed to watch journal directory: %m");
74055aa7
LP		 1685
1686 for (;;) {
1687 if (access("/run/systemd/journal/flushed", F_OK) >= 0)
1688 break;
1689
4a62c710 1690 if (errno != ENOENT)
f131770b 1691 return log_error_errno(errno, "Failed to check for existence of /run/systemd/journal/flushed: %m");
74055aa7
LP		 1692
1693 r = fd_wait_for_event(watch_fd, POLLIN, USEC_INFINITY);
23bbb0de
MS		 1694 if (r < 0)
1695 return log_error_errno(r, "Failed to wait for event: %m");
74055aa7
LP		 1696
1697 r = flush_fd(watch_fd);
23bbb0de
MS		 1698 if (r < 0)
1699 return log_error_errno(r, "Failed to flush inotify events: %m");
74055aa7
LP		 1700 }
1701
1702 return 0;
1703}
1704
a963990f
LP		 1705int main(int argc, char *argv[]) {
1706 int r;
289f910e 1707 _cleanup_journal_close_ sd_journal *j = NULL;
a963990f 1708 bool need_seek = false;
14a65d65 1709 sd_id128_t previous_boot_id;
67e04a48
ZJS		 1710 bool previous_boot_id_valid = false, first_line = true;
1711 int n_shown = 0;
94e0bd7d 1712 bool ellipsized = false;
a963990f 1713
a9cdc94f 1714 setlocale(LC_ALL, "");
a963990f
LP		 1715 log_parse_environment();
1716 log_open();
1717
1718 r = parse_argv(argc, argv);
1719 if (r <= 0)
1720 goto finish;
1721
ed757c0c 1722 signal(SIGWINCH, columns_lines_cache_reset);
2cf4172a 1723 sigbus_install();
ed757c0c 1724
de45d726
LP		 1725 /* Increase max number of open files to 16K if we can, we
1726 * might needs this when browsing journal files, which might
1727 * be split up into many files. */
1728 setrlimit_closest(RLIMIT_NOFILE, &RLIMIT_MAKE_CONST(16384));
1729
7560fffc 1730 if (arg_action == ACTION_NEW_ID128) {
a963990f
LP		 1731 r = generate_new_id128();
1732 goto finish;
1733 }
1734
74055aa7
LP		 1735 if (arg_action == ACTION_FLUSH) {
1736 r = flush_to_var();
1737 goto finish;
1738 }
1739
7560fffc
LP		 1740 if (arg_action == ACTION_SETUP_KEYS) {
1741 r = setup_keys();
1742 goto finish;
1743 }
1744
844ec79b
ZJS		 1745 if (arg_action == ACTION_UPDATE_CATALOG ||
1746 arg_action == ACTION_LIST_CATALOG ||
1747 arg_action == ACTION_DUMP_CATALOG) {
1748
0c6ea3a4
ZJS		 1749 _cleanup_free_ char *database;
1750
1751 database = path_join(arg_root, CATALOG_DATABASE, NULL);
1752 if (!database) {
1753 r = log_oom();
1754 goto finish;
13cbf3a5
ZJS		 1755 }
1756
844ec79b 1757 if (arg_action == ACTION_UPDATE_CATALOG) {
13cbf3a5 1758 r = catalog_update(database, arg_root, catalog_file_dirs);
844ec79b 1759 if (r < 0)
da927ba9 1760 log_error_errno(r, "Failed to list catalog: %m");
844ec79b
ZJS		 1761 } else {
1762 bool oneline = arg_action == ACTION_LIST_CATALOG;
1763
1764 if (optind < argc)
13cbf3a5 1765 r = catalog_list_items(stdout, database,
844ec79b
ZJS		 1766 oneline, argv + optind);
1767 else
13cbf3a5 1768 r = catalog_list(stdout, database, oneline);
844ec79b 1769 if (r < 0)
da927ba9 1770 log_error_errno(r, "Failed to list catalog: %m");
844ec79b 1771 }
d4205751 1772
d4205751
LP		 1773 goto finish;
1774 }
1775
a963990f 1776 if (arg_directory)
3f3a438f 1777 r = sd_journal_open_directory(&j, arg_directory, arg_journal_type);
8d98da3f
ZJS		 1778 else if (arg_file)
1779 r = sd_journal_open_files(&j, (const char**) arg_file, 0);
b6741478
LP		 1780 else if (arg_machine)
1781 r = sd_journal_open_container(&j, arg_machine, 0);
a963990f 1782 else
3f3a438f 1783 r = sd_journal_open(&j, !arg_merge*SD_JOURNAL_LOCAL_ONLY + arg_journal_type);
a963990f 1784 if (r < 0) {
c33b3297
MS		 1785 log_error_errno(r, "Failed to open %s: %m",
1786 arg_directory ? arg_directory : arg_file ? "files" : "journal");
763c7aa2 1787 return EXIT_FAILURE;
a963990f
LP		 1788 }
1789
6fe391c5
ZJS		 1790 r = access_check(j);
1791 if (r < 0)
1792 return EXIT_FAILURE;
1793
beec0085
LP		 1794 if (arg_action == ACTION_VERIFY) {
1795 r = verify(j);
1796 goto finish;
1797 }
1798
7560fffc 1799 if (arg_action == ACTION_PRINT_HEADER) {
dca6219e 1800 journal_print_header(j);
763c7aa2 1801 return EXIT_SUCCESS;
dca6219e
LP		 1802 }
1803
a1a03e30 1804 if (arg_action == ACTION_DISK_USAGE) {
39883f62 1805 uint64_t bytes = 0;
a1a03e30
LP		 1806 char sbytes[FORMAT_BYTES_MAX];
1807
1808 r = sd_journal_get_usage(j, &bytes);
1809 if (r < 0)
763c7aa2 1810 return EXIT_FAILURE;
a1a03e30 1811
dbd2a83f 1812 printf("Archived and active journals take up %s on disk.\n",
763c7aa2
ZJS		 1813 format_bytes(sbytes, sizeof(sbytes), bytes));
1814 return EXIT_SUCCESS;
a1a03e30
LP		 1815 }
1816
dbd2a83f
LP		 1817 if (arg_action == ACTION_VACUUM) {
1818 Directory *d;
1819 Iterator i;
1820
1821 HASHMAP_FOREACH(d, j->directories_by_path, i) {
1822 int q;
1823
1824 if (d->is_root)
1825 continue;
1826
1827 q = journal_directory_vacuum(d->path, arg_vacuum_size, arg_vacuum_time, NULL, true);
1828 if (q < 0) {
da927ba9 1829 log_error_errno(q, "Failed to vacuum: %m");
dbd2a83f
LP		 1830 r = q;
1831 }
1832 }
1833
1834 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
1835 }
1836
f1188074
ZJS		 1837 if (arg_action == ACTION_LIST_BOOTS) {
1838 r = list_boots(j);
1839 goto finish;
1840 }
1841
a331b5e6
JJ		 1842 /* add_boot() must be called first!
1843 * It may need to seek the journal to find parent boot IDs. */
1844 r = add_boot(j);
a963990f 1845 if (r < 0)
763c7aa2 1846 return EXIT_FAILURE;
a963990f 1847
99271804
ZJS		 1848 r = add_dmesg(j);
1849 if (r < 0)
1850 return EXIT_FAILURE;
1851
b9e40524
HH		 1852 r = add_units(j);
1853 strv_free(arg_system_units);
1854 strv_free(arg_user_units);
1855
ea18a4b5 1856 if (r < 0) {
da927ba9 1857 log_error_errno(r, "Failed to add filter for units: %m");
763c7aa2 1858 return EXIT_FAILURE;
ea18a4b5 1859 }
c3f60ec5 1860
73083640
HH		 1861 r = add_syslog_identifier(j);
1862 if (r < 0) {
da927ba9 1863 log_error_errno(r, "Failed to add filter for syslog identifiers: %m");
73083640
HH		 1864 return EXIT_FAILURE;
1865 }
1866
cd34b3c6 1867 r = add_priorities(j);
ea18a4b5 1868 if (r < 0) {
da927ba9 1869 log_error_errno(r, "Failed to add filter for priorities: %m");
763c7aa2 1870 return EXIT_FAILURE;
ea18a4b5 1871 }
a963990f 1872
cd34b3c6 1873 r = add_matches(j, argv + optind);
ea18a4b5 1874 if (r < 0) {
da927ba9 1875 log_error_errno(r, "Failed to add filters: %m");
763c7aa2 1876 return EXIT_FAILURE;
ea18a4b5 1877 }
941e990d 1878
553d2243 1879 if (_unlikely_(log_get_max_level() >= LOG_DEBUG)) {
4ad16808
ZJS		 1880 _cleanup_free_ char *filter;
1881
1882 filter = journal_make_match_string(j);
1883 log_debug("Journal filter: %s", filter);
1884 }
67e04a48 1885
15119c16
LP		 1886 if (arg_field) {
1887 const void *data;
1888 size_t size;
1889
21ae4593
ZJS		 1890 r = sd_journal_set_data_threshold(j, 0);
1891 if (r < 0) {
1892 log_error("Failed to unset data size threshold");
1893 return EXIT_FAILURE;
1894 }
1895
15119c16
LP		 1896 r = sd_journal_query_unique(j, arg_field);
1897 if (r < 0) {
da927ba9 1898 log_error_errno(r, "Failed to query unique data objects: %m");
763c7aa2 1899 return EXIT_FAILURE;
15119c16
LP		 1900 }
1901
1902 SD_JOURNAL_FOREACH_UNIQUE(j, data, size) {
1903 const void *eq;
1904
67e04a48 1905 if (arg_lines >= 0 && n_shown >= arg_lines)
fd6e8875
LP		 1906 break;
1907
15119c16
LP		 1908 eq = memchr(data, '=', size);
1909 if (eq)
1910 printf("%.*s\n", (int) (size - ((const uint8_t*) eq - (const uint8_t*) data + 1)), (const char*) eq + 1);
1911 else
1912 printf("%.*s\n", (int) size, (const char*) data);
fd6e8875
LP		 1913
1914 n_shown ++;
15119c16
LP		 1915 }
1916
763c7aa2 1917 return EXIT_SUCCESS;
15119c16
LP		 1918 }
1919
8d98da3f
ZJS		 1920 /* Opening the fd now means the first sd_journal_wait() will actually wait */
1921 if (arg_follow) {
1922 r = sd_journal_get_fd(j);
1923 if (r < 0)
1924 return EXIT_FAILURE;
1925 }
1926
248fc619 1927 if (arg_cursor || arg_after_cursor) {
eacbb4d3 1928 r = sd_journal_seek_cursor(j, arg_cursor ?: arg_after_cursor);
08984293 1929 if (r < 0) {
da927ba9 1930 log_error_errno(r, "Failed to seek to cursor: %m");
763c7aa2 1931 return EXIT_FAILURE;
08984293 1932 }
d89d6c86 1933 if (!arg_reverse)
248fc619 1934 r = sd_journal_next_skip(j, 1 + !!arg_after_cursor);
d89d6c86 1935 else
248fc619
ZJS		 1936 r = sd_journal_previous_skip(j, 1 + !!arg_after_cursor);
1937
8ee8e536 1938 if (arg_after_cursor && r < 2) {
248fc619 1939 /* We couldn't find the next entry after the cursor. */
8ee8e536
WD		 1940 if (arg_follow)
1941 need_seek = true;
1942 else
1943 arg_lines = 0;
1944 }
08984293 1945
d89d6c86 1946 } else if (arg_since_set && !arg_reverse) {
cfbc22ab 1947 r = sd_journal_seek_realtime_usec(j, arg_since);
8f14c832 1948 if (r < 0) {
da927ba9 1949 log_error_errno(r, "Failed to seek to date: %m");
763c7aa2 1950 return EXIT_FAILURE;
8f14c832 1951 }
8f14c832
LP		 1952 r = sd_journal_next(j);
1953
d89d6c86
LN		 1954 } else if (arg_until_set && arg_reverse) {
1955 r = sd_journal_seek_realtime_usec(j, arg_until);
1956 if (r < 0) {
da927ba9 1957 log_error_errno(r, "Failed to seek to date: %m");
763c7aa2 1958 return EXIT_FAILURE;
d89d6c86
LN		 1959 }
1960 r = sd_journal_previous(j);
1961
67e04a48 1962 } else if (arg_lines >= 0) {
2100675e
LP		 1963 r = sd_journal_seek_tail(j);
1964 if (r < 0) {
da927ba9 1965 log_error_errno(r, "Failed to seek to tail: %m");
763c7aa2 1966 return EXIT_FAILURE;
2100675e
LP		 1967 }
1968
1969 r = sd_journal_previous_skip(j, arg_lines);
8f14c832 1970
d89d6c86
LN		 1971 } else if (arg_reverse) {
1972 r = sd_journal_seek_tail(j);
1973 if (r < 0) {
da927ba9 1974 log_error_errno(r, "Failed to seek to tail: %m");
763c7aa2 1975 return EXIT_FAILURE;
d89d6c86
LN		 1976 }
1977
1978 r = sd_journal_previous(j);
1979
2100675e
LP		 1980 } else {
1981 r = sd_journal_seek_head(j);
1982 if (r < 0) {
da927ba9 1983 log_error_errno(r, "Failed to seek to head: %m");
763c7aa2 1984 return EXIT_FAILURE;
2100675e 1985 }
6f003b43
LP		 1986
1987 r = sd_journal_next(j);
1988 }
1989
1990 if (r < 0) {
da927ba9 1991 log_error_errno(r, "Failed to iterate through journal: %m");
763c7aa2 1992 return EXIT_FAILURE;
50f20cfd 1993 }
87d2c1ff 1994
faf5077f
DH		 1995 if (!arg_follow)
1996 pager_open_if_enabled();
0d43c694 1997
cfbc22ab
LP		 1998 if (!arg_quiet) {
1999 usec_t start, end;
2000 char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX];
2001
2002 r = sd_journal_get_cutoff_realtime_usec(j, &start, &end);
2003 if (r < 0) {
da927ba9 2004 log_error_errno(r, "Failed to get cutoff: %m");
cfbc22ab
LP		 2005 goto finish;
2006 }
2007
2008 if (r > 0) {
2009 if (arg_follow)
9048b11f 2010 printf("-- Logs begin at %s. --\n",
5ab99e07 2011 format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start));
cfbc22ab 2012 else
9048b11f 2013 printf("-- Logs begin at %s, end at %s. --\n",
5ab99e07
LP		 2014 format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start),
2015 format_timestamp_maybe_utc(end_buf, sizeof(end_buf), end));
cfbc22ab
LP		 2016 }
2017 }
2018
50f20cfd 2019 for (;;) {
67e04a48 2020 while (arg_lines < 0 || n_shown < arg_lines || (arg_follow && !first_line)) {
cfbc22ab
LP		 2021 int flags;
2022
6f003b43 2023 if (need_seek) {
99613ec5 2024 if (!arg_reverse)
d89d6c86
LN		 2025 r = sd_journal_next(j);
2026 else
2027 r = sd_journal_previous(j);
6f003b43 2028 if (r < 0) {
da927ba9 2029 log_error_errno(r, "Failed to iterate through journal: %m");
6f003b43
LP		 2030 goto finish;
2031 }
a72b6353
ZJS		 2032 if (r == 0)
2033 break;
0d43c694
LP		 2034 }
2035
d89d6c86 2036 if (arg_until_set && !arg_reverse) {
cfbc22ab
LP		 2037 usec_t usec;
2038
2039 r = sd_journal_get_realtime_usec(j, &usec);
2040 if (r < 0) {
da927ba9 2041 log_error_errno(r, "Failed to determine timestamp: %m");
cfbc22ab
LP		 2042 goto finish;
2043 }
3ba09ee8
PF		 2044 if (usec > arg_until)
2045 goto finish;
cfbc22ab
LP		 2046 }
2047
d89d6c86
LN		 2048 if (arg_since_set && arg_reverse) {
2049 usec_t usec;
2050
2051 r = sd_journal_get_realtime_usec(j, &usec);
2052 if (r < 0) {
da927ba9 2053 log_error_errno(r, "Failed to determine timestamp: %m");
d89d6c86
LN		 2054 goto finish;
2055 }
2056 if (usec < arg_since)
2057 goto finish;
2058 }
2059
4bed2485 2060 if (!arg_merge && !arg_quiet) {
cd931c0a 2061 sd_id128_t boot_id;
14a65d65 2062
cd931c0a
LP		 2063 r = sd_journal_get_monotonic_usec(j, NULL, &boot_id);
2064 if (r >= 0) {
2065 if (previous_boot_id_valid &&
2066 !sd_id128_equal(boot_id, previous_boot_id))
0b5a519c
DS		 2067 printf("%s-- Reboot --%s\n",
2068 ansi_highlight(), ansi_highlight_off());
cd931c0a
LP		 2069
2070 previous_boot_id = boot_id;
2071 previous_boot_id_valid = true;
2072 }
14a65d65
LP		 2073 }
2074
cfbc22ab 2075 flags =
cd4b13e0 2076 arg_all * OUTPUT_SHOW_ALL |
2b8f6883 2077 arg_full * OUTPUT_FULL_WIDTH |
d4205751 2078 on_tty() * OUTPUT_COLOR |
9fd29044
JS		 2079 arg_catalog * OUTPUT_CATALOG |
2080 arg_utc * OUTPUT_UTC;
cfbc22ab 2081
94e0bd7d 2082 r = output_journal(stdout, j, arg_output, 0, flags, &ellipsized);
a72b6353
ZJS		 2083 need_seek = true;
2084 if (r == -EADDRNOTAVAIL)
2085 break;
2086 else if (r < 0 || ferror(stdout))
72f59706 2087 goto finish;
6f003b43 2088
cfbc22ab 2089 n_shown++;
87d2c1ff
LP		 2090 }
2091
248fc619
ZJS		 2092 if (!arg_follow) {
2093 if (arg_show_cursor) {
2094 _cleanup_free_ char *cursor = NULL;
2095
2096 r = sd_journal_get_cursor(j, &cursor);
2097 if (r < 0 && r != -EADDRNOTAVAIL)
da927ba9 2098 log_error_errno(r, "Failed to get cursor: %m");
248fc619
ZJS		 2099 else if (r >= 0)
2100 printf("-- cursor: %s\n", cursor);
2101 }
2102
50f20cfd 2103 break;
248fc619 2104 }
50f20cfd 2105
e02d1cf7 2106 r = sd_journal_wait(j, (uint64_t) -1);
50f20cfd 2107 if (r < 0) {
da927ba9 2108 log_error_errno(r, "Couldn't wait for journal event: %m");
50f20cfd
LP		 2109 goto finish;
2110 }
67e04a48
ZJS		 2111
2112 first_line = false;
de190aef 2113 }
87d2c1ff
LP		 2114
2115finish:
0d43c694
LP		 2116 pager_close();
2117
a36b8deb
ZJS		 2118 strv_free(arg_file);
2119
3fbf9cbb 2120 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
87d2c1ff 2121}
Unnamed repository; edit this file 'description' to name the repository.