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Merge pull request #11844 from keszybz/networkd-fuzzer-fixes
[thirdparty/systemd.git] / src / journal / journalctl.c
CommitLineData
53e1b683 1/* SPDX-License-Identifier: LGPL-2.1+ */
87d2c1ff 2
3f6fd1ba 3#include <errno.h>
87d2c1ff 4#include <fcntl.h>
ea18a4b5 5#include <fnmatch.h>
3f6fd1ba
LP		 6#include <getopt.h>
7#include <linux/fs.h>
8#include <locale.h>
9#include <poll.h>
10#include <signal.h>
87d2c1ff 11#include <stddef.h>
3fbf9cbb 12#include <stdio.h>
3fbf9cbb 13#include <stdlib.h>
3f6fd1ba 14#include <string.h>
74055aa7 15#include <sys/inotify.h>
3f6fd1ba
LP		 16#include <sys/stat.h>
17#include <unistd.h>
87d2c1ff 18
6becf48c
ZJS		 19#if HAVE_PCRE2
20# define PCRE2_CODE_UNIT_WIDTH 8
21# include <pcre2.h>
22#endif
23
74055aa7 24#include "sd-bus.h"
8bebb09c 25#include "sd-device.h"
3f6fd1ba
LP		 26#include "sd-journal.h"
27
f8eeeaf9 28#include "acl-util.h"
b5efdb8a 29#include "alloc-util.h"
3f6fd1ba
LP		 30#include "bus-error.h"
31#include "bus-util.h"
32#include "catalog.h"
c8b3094d 33#include "chattr-util.h"
1abaf488 34#include "def.h"
8bebb09c 35#include "device-private.h"
3ffd4af2 36#include "fd-util.h"
68fee104 37#include "fileio.h"
f4f15635 38#include "fs-util.h"
3f6fd1ba 39#include "fsprg.h"
7d50b32a 40#include "glob-util.h"
3f6fd1ba 41#include "hostname-util.h"
ff7dad48 42#include "id128-print.h"
c004493c 43#include "io-util.h"
7560fffc 44#include "journal-def.h"
3f6fd1ba 45#include "journal-internal.h"
f6a971bc 46#include "journal-qrcode.h"
4f37cbd9 47#include "journal-util.h"
dbd2a83f 48#include "journal-vacuum.h"
3f6fd1ba 49#include "journal-verify.h"
8752c575 50#include "locale-util.h"
3f6fd1ba
LP		 51#include "log.h"
52#include "logs-show.h"
74055aa7 53#include "mkdir.h"
3f6fd1ba 54#include "pager.h"
6bedfcbb 55#include "parse-util.h"
3f6fd1ba 56#include "path-util.h"
294bf0c3 57#include "pretty-print.h"
78f22b97 58#include "rlimit-util.h"
3f6fd1ba
LP		 59#include "set.h"
60#include "sigbus.h"
5c828e66 61#include "string-table.h"
3f6fd1ba 62#include "strv.h"
7ccbd1ae 63#include "syslog-util.h"
288a74cc 64#include "terminal-util.h"
e4de7287 65#include "tmpfile-util.h"
3f6fd1ba 66#include "unit-name.h"
b1d4f8e1 67#include "user-util.h"
7560fffc 68
baed47c3 69#define DEFAULT_FSS_INTERVAL_USEC (15*USEC_PER_MINUTE)
250d54b5 70
ec316d19
PP		 71#define PROCESS_INOTIFY_INTERVAL 1024 /* Every 1,024 messages processed */
72
6becf48c
ZJS		 73#if HAVE_PCRE2
74DEFINE_TRIVIAL_CLEANUP_FUNC(pcre2_match_data*, pcre2_match_data_free);
61c5f8a1 75DEFINE_TRIVIAL_CLEANUP_FUNC(pcre2_code*, pcre2_code_free);
6becf48c
ZJS		 76
77static int pattern_compile(const char *pattern, unsigned flags, pcre2_code **out) {
78 int errorcode, r;
79 PCRE2_SIZE erroroffset;
80 pcre2_code *p;
81
82 p = pcre2_compile((PCRE2_SPTR8) pattern,
83 PCRE2_ZERO_TERMINATED, flags, &errorcode, &erroroffset, NULL);
84 if (!p) {
85 unsigned char buf[LINE_MAX];
86
87 r = pcre2_get_error_message(errorcode, buf, sizeof buf);
88
baaa35ad
ZJS		 89 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
90 "Bad pattern \"%s\": %s", pattern,
91 r < 0 ? "unknown error" : (char *)buf);
6becf48c
ZJS		 92 }
93
94 *out = p;
95 return 0;
96}
97
98#endif
99
97e1cc8b
LP		 100enum {
101 /* Special values for arg_lines */
102 ARG_LINES_DEFAULT = -2,
103 ARG_LINES_ALL = -1,
104};
105
df50185b 106static OutputMode arg_output = OUTPUT_SHORT;
9fd29044 107static bool arg_utc = false;
72f59706 108static bool arg_follow = false;
2b8f6883 109static bool arg_full = true;
cd4b13e0 110static bool arg_all = false;
0221d68a 111static PagerFlags arg_pager_flags = 0;
97e1cc8b 112static int arg_lines = ARG_LINES_DEFAULT;
e91af489 113static bool arg_no_tail = false;
43673799 114static bool arg_quiet = false;
9e8a535f 115static bool arg_merge = false;
d121b396 116static bool arg_boot = false;
442e2def
LP		 117static sd_id128_t arg_boot_id = {};
118static int arg_boot_offset = 0;
99271804 119static bool arg_dmesg = false;
991e274b 120static bool arg_no_hostname = false;
8f14c832 121static const char *arg_cursor = NULL;
248fc619
ZJS		 122static const char *arg_after_cursor = NULL;
123static bool arg_show_cursor = false;
a963990f 124static const char *arg_directory = NULL;
8d98da3f 125static char **arg_file = NULL;
5d1ce257 126static bool arg_file_stdin = false;
941e990d 127static int arg_priorities = 0xFF;
6bae9b2a 128static char *arg_verify_key = NULL;
349cc4a5 129#if HAVE_GCRYPT
baed47c3 130static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC;
b8547c10 131static bool arg_force = false;
feb12d3e 132#endif
cfbc22ab
LP		 133static usec_t arg_since, arg_until;
134static bool arg_since_set = false, arg_until_set = false;
73083640 135static char **arg_syslog_identifier = NULL;
b9e40524
HH		 136static char **arg_system_units = NULL;
137static char **arg_user_units = NULL;
3c1668da 138static const char *arg_field = NULL;
d4205751 139static bool arg_catalog = false;
d89d6c86 140static bool arg_reverse = false;
3f3a438f 141static int arg_journal_type = 0;
0f03c2a4 142static char *arg_root = NULL;
b6741478 143static const char *arg_machine = NULL;
8580d1f7
LP		 144static uint64_t arg_vacuum_size = 0;
145static uint64_t arg_vacuum_n_files = 0;
146static usec_t arg_vacuum_time = 0;
cc25a67e 147static char **arg_output_fields = NULL;
50f20cfd 148
6becf48c 149#if HAVE_PCRE2
61c5f8a1
ZJS		 150static const char *arg_pattern = NULL;
151static pcre2_code *arg_compiled_pattern = NULL;
152static int arg_case_sensitive = -1; /* -1 means be smart */
6becf48c
ZJS		 153#endif
154
7560fffc
LP		 155static enum {
156 ACTION_SHOW,
157 ACTION_NEW_ID128,
158 ACTION_PRINT_HEADER,
beec0085 159 ACTION_SETUP_KEYS,
a1a03e30
LP		 160 ACTION_VERIFY,
161 ACTION_DISK_USAGE,
d4205751 162 ACTION_LIST_CATALOG,
54b7254c 163 ACTION_DUMP_CATALOG,
f1188074
ZJS		 164 ACTION_UPDATE_CATALOG,
165 ACTION_LIST_BOOTS,
74055aa7 166 ACTION_FLUSH,
a020b3b3 167 ACTION_SYNC,
e3fdfb49 168 ACTION_ROTATE,
dbd2a83f 169 ACTION_VACUUM,
8df64fd0 170 ACTION_ROTATE_AND_VACUUM,
69e714f3
LP		 171 ACTION_LIST_FIELDS,
172 ACTION_LIST_FIELD_NAMES,
7560fffc
LP		 173} arg_action = ACTION_SHOW;
174
45bc27b6 175typedef struct BootId {
a331b5e6 176 sd_id128_t id;
f1188074
ZJS		 177 uint64_t first;
178 uint64_t last;
45bc27b6
LP		 179 LIST_FIELDS(struct BootId, boot_list);
180} BootId;
a331b5e6 181
795ab08f 182static int add_matches_for_device(sd_journal *j, const char *devpath) {
8bebb09c
YW		 183 _cleanup_(sd_device_unrefp) sd_device *device = NULL;
184 sd_device *d = NULL;
795ab08f 185 struct stat st;
e5ca27b7 186 int r;
795ab08f
MS		 187
188 assert(j);
189 assert(devpath);
190
191 if (!path_startswith(devpath, "/dev/")) {
192 log_error("Devpath does not start with /dev/");
193 return -EINVAL;
194 }
195
e5ca27b7
LP		 196 if (stat(devpath, &st) < 0)
197 return log_error_errno(errno, "Couldn't stat file: %m");
795ab08f 198
8bebb09c 199 r = device_new_from_stat_rdev(&device, &st);
e5ca27b7 200 if (r < 0)
8bebb09c 201 return log_error_errno(r, "Failed to get device from devnum %u:%u: %m", major(st.st_rdev), minor(st.st_rdev));
795ab08f 202
8bebb09c 203 for (d = device; d; ) {
795ab08f
MS		 204 _cleanup_free_ char *match = NULL;
205 const char *subsys, *sysname, *devnode;
8bebb09c 206 sd_device *parent;
795ab08f 207
8bebb09c
YW		 208 r = sd_device_get_subsystem(d, &subsys);
209 if (r < 0)
210 goto get_parent;
795ab08f 211
8bebb09c
YW		 212 r = sd_device_get_sysname(d, &sysname);
213 if (r < 0)
214 goto get_parent;
795ab08f 215
605405c6 216 match = strjoin("_KERNEL_DEVICE=+", subsys, ":", sysname);
795ab08f
MS		 217 if (!match)
218 return log_oom();
219
220 r = sd_journal_add_match(j, match, 0);
221 if (r < 0)
222 return log_error_errno(r, "Failed to add match: %m");
223
8bebb09c 224 if (sd_device_get_devname(d, &devnode) >= 0) {
795ab08f
MS		 225 _cleanup_free_ char *match1 = NULL;
226
227 r = stat(devnode, &st);
228 if (r < 0)
229 return log_error_errno(r, "Failed to stat() device node \"%s\": %m", devnode);
230
231 r = asprintf(&match1, "_KERNEL_DEVICE=%c%u:%u", S_ISBLK(st.st_mode) ? 'b' : 'c', major(st.st_rdev), minor(st.st_rdev));
232 if (r < 0)
233 return log_oom();
234
235 r = sd_journal_add_match(j, match1, 0);
236 if (r < 0)
237 return log_error_errno(r, "Failed to add match: %m");
238 }
239
8bebb09c
YW		 240get_parent:
241 if (sd_device_get_parent(d, &parent) < 0)
242 break;
243
244 d = parent;
795ab08f
MS		 245 }
246
485fd9a7
MS		 247 r = add_match_this_boot(j, arg_machine);
248 if (r < 0)
249 return log_error_errno(r, "Failed to add match for the current boot: %m");
250
795ab08f
MS		 251 return 0;
252}
253
5ab99e07
LP		 254static char *format_timestamp_maybe_utc(char *buf, size_t l, usec_t t) {
255
256 if (arg_utc)
257 return format_timestamp_utc(buf, l, t);
258
259 return format_timestamp(buf, l, t);
260}
261
442e2def
LP		 262static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset) {
263 sd_id128_t id = SD_ID128_NULL;
264 int off = 0, r;
265
266 if (strlen(x) >= 32) {
267 char *t;
268
269 t = strndupa(x, 32);
270 r = sd_id128_from_string(t, &id);
271 if (r >= 0)
272 x += 32;
273
4c701096 274 if (!IN_SET(*x, 0, '-', '+'))
442e2def
LP		 275 return -EINVAL;
276
277 if (*x != 0) {
278 r = safe_atoi(x, &off);
279 if (r < 0)
280 return r;
281 }
282 } else {
283 r = safe_atoi(x, &off);
284 if (r < 0)
285 return r;
286 }
287
288 if (boot_id)
289 *boot_id = id;
290
291 if (offset)
292 *offset = off;
293
294 return 0;
295}
296
37ec0fdd
LP		 297static int help(void) {
298 _cleanup_free_ char *link = NULL;
299 int r;
0d43c694 300
0221d68a 301 (void) pager_open(arg_pager_flags);
faf5077f 302
37ec0fdd
LP		 303 r = terminal_urlify_man("journalctl", "1", &link);
304 if (r < 0)
305 return log_oom();
306
cd4b13e0 307 printf("%s [OPTIONS...] [MATCHES...]\n\n"
15119c16 308 "Query the journal.\n\n"
94b65516 309 "Options:\n"
61c5f8a1
ZJS		 310 " --system Show the system journal\n"
311 " --user Show the user journal for the current user\n"
312 " -M --machine=CONTAINER Operate on local container\n"
313 " -S --since=DATE Show entries not older than the specified date\n"
314 " -U --until=DATE Show entries not newer than the specified date\n"
315 " -c --cursor=CURSOR Show entries starting at the specified cursor\n"
316 " --after-cursor=CURSOR Show entries after the specified cursor\n"
317 " --show-cursor Print the cursor after all the entries\n"
318 " -b --boot[=ID] Show current boot or the specified boot\n"
319 " --list-boots Show terse information about recorded boots\n"
320 " -k --dmesg Show kernel message log from the current boot\n"
321 " -u --unit=UNIT Show logs from the specified unit\n"
322 " --user-unit=UNIT Show logs from the specified user unit\n"
323 " -t --identifier=STRING Show entries with the specified syslog identifier\n"
324 " -p --priority=RANGE Show entries with the specified priority\n"
fabf4dae 325 " -g --grep=PATTERN Show entries with MESSAGE matching PATTERN\n"
61c5f8a1
ZJS		 326 " --case-sensitive[=BOOL] Force case sensitive or insenstive matching\n"
327 " -e --pager-end Immediately jump to the end in the pager\n"
328 " -f --follow Follow the journal\n"
329 " -n --lines[=INTEGER] Number of journal entries to show\n"
330 " --no-tail Show all lines, even in follow mode\n"
331 " -r --reverse Show the newest entries first\n"
332 " -o --output=STRING Change journal output mode (short, short-precise,\n"
333 " short-iso, short-iso-precise, short-full,\n"
334 " short-monotonic, short-unix, verbose, export,\n"
8e044443
LP		 335 " json, json-pretty, json-sse, json-seq, cat,\n"
336 " with-unit)\n"
61c5f8a1
ZJS		 337 " --output-fields=LIST Select fields to print in verbose/export/json modes\n"
338 " --utc Express time in Coordinated Universal Time (UTC)\n"
339 " -x --catalog Add message explanations where available\n"
340 " --no-full Ellipsize fields\n"
341 " -a --all Show all fields, including long and unprintable\n"
342 " -q --quiet Do not show info messages and privilege warning\n"
343 " --no-pager Do not pipe output into a pager\n"
344 " --no-hostname Suppress output of hostname field\n"
345 " -m --merge Show entries from all available journals\n"
346 " -D --directory=PATH Show journal files from directory\n"
347 " --file=PATH Show journal file\n"
348 " --root=ROOT Operate on files below a root directory\n"
61c5f8a1
ZJS		 349 " --interval=TIME Time interval for changing the FSS sealing key\n"
350 " --verify-key=KEY Specify FSS verification key\n"
351 " --force Override of the FSS key pair with --setup-keys\n"
15119c16 352 "\nCommands:\n"
61c5f8a1
ZJS		 353 " -h --help Show this help text\n"
354 " --version Show package version\n"
355 " -N --fields List all field names currently used\n"
356 " -F --field=FIELD List all values that a specified field takes\n"
357 " --disk-usage Show total disk usage of all journal files\n"
358 " --vacuum-size=BYTES Reduce disk usage below specified size\n"
359 " --vacuum-files=INT Leave only the specified number of journal files\n"
360 " --vacuum-time=TIME Remove journal files older than specified time\n"
361 " --verify Verify journal file consistency\n"
362 " --sync Synchronize unwritten journal messages to disk\n"
363 " --flush Flush all journal data from /run into /var\n"
364 " --rotate Request immediate rotation of the journal files\n"
365 " --header Show journal header information\n"
366 " --list-catalog Show all message IDs in the catalog\n"
367 " --dump-catalog Show entries in the message catalog\n"
368 " --update-catalog Update the message catalog database\n"
61c5f8a1 369 " --setup-keys Generate a new FSS key pair\n"
37ec0fdd
LP		 370 "\nSee the %s for details.\n"
371 , program_invocation_short_name
372 , link
373 );
374
375 return 0;
0d43c694
LP		 376}
377
378static int parse_argv(int argc, char *argv[]) {
379
380 enum {
381 ARG_VERSION = 0x100,
e91af489 382 ARG_NO_PAGER,
2b8f6883 383 ARG_NO_FULL,
55ee336c 384 ARG_NO_TAIL,
dca6219e 385 ARG_NEW_ID128,
8453f062 386 ARG_THIS_BOOT,
f1188074 387 ARG_LIST_BOOTS,
3f3a438f
ZJS		 388 ARG_USER,
389 ARG_SYSTEM,
13cbf3a5 390 ARG_ROOT,
7560fffc 391 ARG_HEADER,
beec0085 392 ARG_SETUP_KEYS,
8d98da3f 393 ARG_FILE,
baed47c3 394 ARG_INTERVAL,
4da416aa 395 ARG_VERIFY,
a1a03e30 396 ARG_VERIFY_KEY,
cfbc22ab 397 ARG_DISK_USAGE,
248fc619
ZJS		 398 ARG_AFTER_CURSOR,
399 ARG_SHOW_CURSOR,
ffa7cd15 400 ARG_USER_UNIT,
d4205751 401 ARG_LIST_CATALOG,
54b7254c 402 ARG_DUMP_CATALOG,
3f3a438f 403 ARG_UPDATE_CATALOG,
b8547c10 404 ARG_FORCE,
61c5f8a1 405 ARG_CASE_SENSITIVE,
9fd29044 406 ARG_UTC,
94b65516 407 ARG_SYNC,
74055aa7 408 ARG_FLUSH,
e3fdfb49 409 ARG_ROTATE,
dbd2a83f 410 ARG_VACUUM_SIZE,
8580d1f7 411 ARG_VACUUM_FILES,
dbd2a83f 412 ARG_VACUUM_TIME,
991e274b 413 ARG_NO_HOSTNAME,
cc25a67e 414 ARG_OUTPUT_FIELDS,
0d43c694
LP		 415 };
416
417 static const struct option options[] = {
248fc619
ZJS		 418 { "help", no_argument, NULL, 'h' },
419 { "version" , no_argument, NULL, ARG_VERSION },
420 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
421 { "pager-end", no_argument, NULL, 'e' },
422 { "follow", no_argument, NULL, 'f' },
423 { "force", no_argument, NULL, ARG_FORCE },
424 { "output", required_argument, NULL, 'o' },
425 { "all", no_argument, NULL, 'a' },
426 { "full", no_argument, NULL, 'l' },
2b8f6883 427 { "no-full", no_argument, NULL, ARG_NO_FULL },
248fc619
ZJS		 428 { "lines", optional_argument, NULL, 'n' },
429 { "no-tail", no_argument, NULL, ARG_NO_TAIL },
19a073db 430 { "new-id128", no_argument, NULL, ARG_NEW_ID128 }, /* deprecated */
248fc619
ZJS		 431 { "quiet", no_argument, NULL, 'q' },
432 { "merge", no_argument, NULL, 'm' },
8453f062 433 { "this-boot", no_argument, NULL, ARG_THIS_BOOT }, /* deprecated */
248fc619 434 { "boot", optional_argument, NULL, 'b' },
f1188074 435 { "list-boots", no_argument, NULL, ARG_LIST_BOOTS },
248fc619
ZJS		 436 { "dmesg", no_argument, NULL, 'k' },
437 { "system", no_argument, NULL, ARG_SYSTEM },
438 { "user", no_argument, NULL, ARG_USER },
439 { "directory", required_argument, NULL, 'D' },
440 { "file", required_argument, NULL, ARG_FILE },
441 { "root", required_argument, NULL, ARG_ROOT },
442 { "header", no_argument, NULL, ARG_HEADER },
73083640 443 { "identifier", required_argument, NULL, 't' },
248fc619 444 { "priority", required_argument, NULL, 'p' },
6becf48c 445 { "grep", required_argument, NULL, 'g' },
61c5f8a1 446 { "case-sensitive", optional_argument, NULL, ARG_CASE_SENSITIVE },
248fc619
ZJS		 447 { "setup-keys", no_argument, NULL, ARG_SETUP_KEYS },
448 { "interval", required_argument, NULL, ARG_INTERVAL },
449 { "verify", no_argument, NULL, ARG_VERIFY },
450 { "verify-key", required_argument, NULL, ARG_VERIFY_KEY },
451 { "disk-usage", no_argument, NULL, ARG_DISK_USAGE },
452 { "cursor", required_argument, NULL, 'c' },
453 { "after-cursor", required_argument, NULL, ARG_AFTER_CURSOR },
454 { "show-cursor", no_argument, NULL, ARG_SHOW_CURSOR },
66f52924
JS		 455 { "since", required_argument, NULL, 'S' },
456 { "until", required_argument, NULL, 'U' },
248fc619
ZJS		 457 { "unit", required_argument, NULL, 'u' },
458 { "user-unit", required_argument, NULL, ARG_USER_UNIT },
459 { "field", required_argument, NULL, 'F' },
69e714f3 460 { "fields", no_argument, NULL, 'N' },
248fc619
ZJS		 461 { "catalog", no_argument, NULL, 'x' },
462 { "list-catalog", no_argument, NULL, ARG_LIST_CATALOG },
463 { "dump-catalog", no_argument, NULL, ARG_DUMP_CATALOG },
464 { "update-catalog", no_argument, NULL, ARG_UPDATE_CATALOG },
465 { "reverse", no_argument, NULL, 'r' },
b6741478 466 { "machine", required_argument, NULL, 'M' },
9fd29044 467 { "utc", no_argument, NULL, ARG_UTC },
74055aa7 468 { "flush", no_argument, NULL, ARG_FLUSH },
94b65516 469 { "sync", no_argument, NULL, ARG_SYNC },
e3fdfb49 470 { "rotate", no_argument, NULL, ARG_ROTATE },
dbd2a83f 471 { "vacuum-size", required_argument, NULL, ARG_VACUUM_SIZE },
8580d1f7 472 { "vacuum-files", required_argument, NULL, ARG_VACUUM_FILES },
dbd2a83f 473 { "vacuum-time", required_argument, NULL, ARG_VACUUM_TIME },
991e274b 474 { "no-hostname", no_argument, NULL, ARG_NO_HOSTNAME },
cc25a67e 475 { "output-fields", required_argument, NULL, ARG_OUTPUT_FIELDS },
eb9da376 476 {}
0d43c694
LP		 477 };
478
2100675e 479 int c, r;
0d43c694
LP		 480
481 assert(argc >= 0);
482 assert(argv);
483
2de6b06b 484 while ((c = getopt_long(argc, argv, "hefo:aln::qmb::kD:p:g:c:S:U:t:u:NF:xrM:", options, NULL)) >= 0)
0d43c694
LP		 485
486 switch (c) {
487
488 case 'h':
37ec0fdd 489 return help();
0d43c694
LP		 490
491 case ARG_VERSION:
3f6fd1ba 492 return version();
0d43c694
LP		 493
494 case ARG_NO_PAGER:
0221d68a 495 arg_pager_flags |= PAGER_DISABLE;
0d43c694
LP		 496 break;
497
1b12a7b5 498 case 'e':
0221d68a 499 arg_pager_flags |= PAGER_JUMP_TO_END;
fe59e38b 500
97e1cc8b 501 if (arg_lines == ARG_LINES_DEFAULT)
fe59e38b
LP		 502 arg_lines = 1000;
503
1b12a7b5
HH		 504 break;
505
0d43c694
LP		 506 case 'f':
507 arg_follow = true;
508 break;
509
510 case 'o':
5c828e66
LP		 511 if (streq(optarg, "help")) {
512 DUMP_STRING_TABLE(output_mode, OutputMode, _OUTPUT_MODE_MAX);
513 return 0;
514 }
515
1705594f 516 arg_output = output_mode_from_string(optarg);
df50185b 517 if (arg_output < 0) {
edfb521a 518 log_error("Unknown output format '%s'.", optarg);
0d43c694
LP		 519 return -EINVAL;
520 }
df50185b 521
8e044443 522 if (IN_SET(arg_output, OUTPUT_EXPORT, OUTPUT_JSON, OUTPUT_JSON_PRETTY, OUTPUT_JSON_SSE, OUTPUT_JSON_SEQ, OUTPUT_CAT))
edfb521a
ZJS		 523 arg_quiet = true;
524
0d43c694
LP		 525 break;
526
98a6e132 527 case 'l':
e3657ecd
ZJS		 528 arg_full = true;
529 break;
530
2b8f6883
ZJS		 531 case ARG_NO_FULL:
532 arg_full = false;
533 break;
534
0d43c694 535 case 'a':
cd4b13e0 536 arg_all = true;
0d43c694
LP		 537 break;
538
2100675e 539 case 'n':
1705594f 540 if (optarg) {
48382487 541 if (streq(optarg, "all"))
97e1cc8b 542 arg_lines = ARG_LINES_ALL;
48382487
JJ		 543 else {
544 r = safe_atoi(optarg, &arg_lines);
545 if (r < 0 || arg_lines < 0) {
546 log_error("Failed to parse lines '%s'", optarg);
547 return -EINVAL;
548 }
1705594f 549 }
96088db0 550 } else {
48382487 551 arg_lines = 10;
96088db0
LP		 552
553 /* Hmm, no argument? Maybe the next
554 * word on the command line is
555 * supposed to be the argument? Let's
556 * see if there is one, and is
48382487
JJ		 557 * parsable. */
558 if (optind < argc) {
559 int n;
560 if (streq(argv[optind], "all")) {
97e1cc8b 561 arg_lines = ARG_LINES_ALL;
48382487
JJ		 562 optind++;
563 } else if (safe_atoi(argv[optind], &n) >= 0 && n >= 0) {
564 arg_lines = n;
565 optind++;
566 }
567 }
96088db0 568 }
1705594f 569
2100675e
LP		 570 break;
571
e91af489
LP		 572 case ARG_NO_TAIL:
573 arg_no_tail = true;
574 break;
575
39f7f5c1 576 case ARG_NEW_ID128:
7560fffc 577 arg_action = ACTION_NEW_ID128;
55ee336c
LP		 578 break;
579
43673799
LP		 580 case 'q':
581 arg_quiet = true;
490e567d 582 break;
43673799 583
9e8a535f
LP		 584 case 'm':
585 arg_merge = true;
2bd3c38a
LP		 586 break;
587
8453f062
ZJS		 588 case ARG_THIS_BOOT:
589 arg_boot = true;
590 break;
591
59cea26a 592 case 'b':
d121b396 593 arg_boot = true;
6cebe83c 594
442e2def 595 if (optarg) {
909dea0c 596 r = parse_boot_descriptor(optarg, &arg_boot_id, &arg_boot_offset);
442e2def
LP		 597 if (r < 0) {
598 log_error("Failed to parse boot descriptor '%s'", optarg);
599 return -EINVAL;
600 }
601 } else {
6cebe83c 602
442e2def
LP		 603 /* Hmm, no argument? Maybe the next
604 * word on the command line is
605 * supposed to be the argument? Let's
606 * see if there is one and is parsable
607 * as a boot descriptor... */
608
609 if (optind < argc &&
610 parse_boot_descriptor(argv[optind], &arg_boot_id, &arg_boot_offset) >= 0)
6cebe83c 611 optind++;
6cebe83c 612 }
d121b396 613
59cea26a
LP		 614 break;
615
f1188074
ZJS		 616 case ARG_LIST_BOOTS:
617 arg_action = ACTION_LIST_BOOTS;
618 break;
619
99271804 620 case 'k':
d121b396 621 arg_boot = arg_dmesg = true;
99271804
ZJS		 622 break;
623
3f3a438f
ZJS		 624 case ARG_SYSTEM:
625 arg_journal_type |= SD_JOURNAL_SYSTEM;
626 break;
627
628 case ARG_USER:
629 arg_journal_type |= SD_JOURNAL_CURRENT_USER;
630 break;
631
b6741478
LP		 632 case 'M':
633 arg_machine = optarg;
634 break;
635
a963990f
LP		 636 case 'D':
637 arg_directory = optarg;
638 break;
639
8d98da3f 640 case ARG_FILE:
5d1ce257
LP		 641 if (streq(optarg, "-"))
642 /* An undocumented feature: we can read journal files from STDIN. We don't document
643 * this though, since after all we only support this for mmap-able, seekable files, and
644 * not for example pipes which are probably the primary usecase for reading things from
645 * STDIN. To avoid confusion we hence don't document this feature. */
646 arg_file_stdin = true;
647 else {
648 r = glob_extend(&arg_file, optarg);
649 if (r < 0)
650 return log_error_errno(r, "Failed to add paths: %m");
651 }
8d98da3f
ZJS		 652 break;
653
13cbf3a5 654 case ARG_ROOT:
0f03c2a4
LP		 655 r = parse_path_argument_and_warn(optarg, true, &arg_root);
656 if (r < 0)
657 return r;
13cbf3a5
ZJS		 658 break;
659
8f14c832
LP		 660 case 'c':
661 arg_cursor = optarg;
662 break;
663
248fc619
ZJS		 664 case ARG_AFTER_CURSOR:
665 arg_after_cursor = optarg;
666 break;
667
668 case ARG_SHOW_CURSOR:
669 arg_show_cursor = true;
670 break;
671
dca6219e 672 case ARG_HEADER:
7560fffc
LP		 673 arg_action = ACTION_PRINT_HEADER;
674 break;
675
feb12d3e
LP		 676 case ARG_VERIFY:
677 arg_action = ACTION_VERIFY;
678 break;
679
a1a03e30
LP		 680 case ARG_DISK_USAGE:
681 arg_action = ACTION_DISK_USAGE;
682 break;
683
dbd2a83f
LP		 684 case ARG_VACUUM_SIZE:
685 r = parse_size(optarg, 1024, &arg_vacuum_size);
686 if (r < 0) {
687 log_error("Failed to parse vacuum size: %s", optarg);
688 return r;
689 }
690
8df64fd0 691 arg_action = arg_action == ACTION_ROTATE ? ACTION_ROTATE_AND_VACUUM : ACTION_VACUUM;
dbd2a83f
LP		 692 break;
693
8580d1f7
LP		 694 case ARG_VACUUM_FILES:
695 r = safe_atou64(optarg, &arg_vacuum_n_files);
696 if (r < 0) {
697 log_error("Failed to parse vacuum files: %s", optarg);
698 return r;
699 }
700
8df64fd0 701 arg_action = arg_action == ACTION_ROTATE ? ACTION_ROTATE_AND_VACUUM : ACTION_VACUUM;
8580d1f7
LP		 702 break;
703
dbd2a83f
LP		 704 case ARG_VACUUM_TIME:
705 r = parse_sec(optarg, &arg_vacuum_time);
706 if (r < 0) {
707 log_error("Failed to parse vacuum time: %s", optarg);
708 return r;
709 }
710
8df64fd0 711 arg_action = arg_action == ACTION_ROTATE ? ACTION_ROTATE_AND_VACUUM : ACTION_VACUUM;
dbd2a83f
LP		 712 break;
713
349cc4a5 714#if HAVE_GCRYPT
b8547c10
SL		 715 case ARG_FORCE:
716 arg_force = true;
717 break;
718
7560fffc
LP		 719 case ARG_SETUP_KEYS:
720 arg_action = ACTION_SETUP_KEYS;
dca6219e
LP		 721 break;
722
baed47c3 723 case ARG_VERIFY_KEY:
4da416aa 724 arg_action = ACTION_VERIFY;
e50412ef
ZJS		 725 r = free_and_strdup(&arg_verify_key, optarg);
726 if (r < 0)
727 return r;
1075122f
ZJS		 728 /* Use memset not string_erase so this doesn't look confusing
729 * in ps or htop output. */
730 memset(optarg, 'x', strlen(optarg));
e50412ef
ZJS		 731
732 arg_merge = false;
4da416aa
LP		 733 break;
734
baed47c3 735 case ARG_INTERVAL:
7f602784 736 r = parse_sec(optarg, &arg_interval);
baed47c3
LP		 737 if (r < 0 || arg_interval <= 0) {
738 log_error("Failed to parse sealing key change interval: %s", optarg);
14d10188
LP		 739 return -EINVAL;
740 }
741 break;
feb12d3e
LP		 742#else
743 case ARG_SETUP_KEYS:
744 case ARG_VERIFY_KEY:
745 case ARG_INTERVAL:
b8547c10 746 case ARG_FORCE:
7289c769 747 log_error("Compiled without forward-secure sealing support.");
15411c0c 748 return -EOPNOTSUPP;
feb12d3e 749#endif
14d10188 750
941e990d
LP		 751 case 'p': {
752 const char *dots;
753
754 dots = strstr(optarg, "..");
755 if (dots) {
756 char *a;
757 int from, to, i;
758
759 /* a range */
760 a = strndup(optarg, dots - optarg);
761 if (!a)
762 return log_oom();
763
764 from = log_level_from_string(a);
765 to = log_level_from_string(dots + 2);
766 free(a);
767
768 if (from < 0 || to < 0) {
769 log_error("Failed to parse log level range %s", optarg);
770 return -EINVAL;
771 }
772
773 arg_priorities = 0;
774
775 if (from < to) {
776 for (i = from; i <= to; i++)
777 arg_priorities |= 1 << i;
778 } else {
779 for (i = to; i <= from; i++)
780 arg_priorities |= 1 << i;
781 }
782
783 } else {
784 int p, i;
785
786 p = log_level_from_string(optarg);
787 if (p < 0) {
788 log_error("Unknown log level %s", optarg);
789 return -EINVAL;
790 }
791
792 arg_priorities = 0;
793
794 for (i = 0; i <= p; i++)
795 arg_priorities |= 1 << i;
796 }
797
798 break;
799 }
800
6becf48c 801#if HAVE_PCRE2
61c5f8a1
ZJS		 802 case 'g':
803 arg_pattern = optarg;
6becf48c 804 break;
6becf48c 805
61c5f8a1
ZJS		 806 case ARG_CASE_SENSITIVE:
807 if (optarg) {
808 r = parse_boolean(optarg);
809 if (r < 0)
810 return log_error_errno(r, "Bad --case-sensitive= argument \"%s\": %m", optarg);
811 arg_case_sensitive = r;
812 } else
813 arg_case_sensitive = true;
814
815 break;
6becf48c
ZJS		 816#else
817 case 'g':
61c5f8a1 818 case ARG_CASE_SENSITIVE:
6becf48c
ZJS		 819 return log_error("Compiled without pattern matching support");
820#endif
821
66f52924 822 case 'S':
cfbc22ab
LP		 823 r = parse_timestamp(optarg, &arg_since);
824 if (r < 0) {
825 log_error("Failed to parse timestamp: %s", optarg);
826 return -EINVAL;
827 }
828 arg_since_set = true;
829 break;
830
66f52924 831 case 'U':
cfbc22ab
LP		 832 r = parse_timestamp(optarg, &arg_until);
833 if (r < 0) {
834 log_error("Failed to parse timestamp: %s", optarg);
835 return -EINVAL;
836 }
837 arg_until_set = true;
838 break;
839
73083640
HH		 840 case 't':
841 r = strv_extend(&arg_syslog_identifier, optarg);
842 if (r < 0)
843 return log_oom();
844 break;
845
7199aa96 846 case 'u':
b9e40524
HH		 847 r = strv_extend(&arg_system_units, optarg);
848 if (r < 0)
849 return log_oom();
ffa7cd15
DW		 850 break;
851
7199aa96 852 case ARG_USER_UNIT:
b9e40524
HH		 853 r = strv_extend(&arg_user_units, optarg);
854 if (r < 0)
855 return log_oom();
c3f60ec5
LP		 856 break;
857
15119c16 858 case 'F':
69e714f3 859 arg_action = ACTION_LIST_FIELDS;
15119c16
LP		 860 arg_field = optarg;
861 break;
862
69e714f3
LP		 863 case 'N':
864 arg_action = ACTION_LIST_FIELD_NAMES;
865 break;
866
991e274b
LP		 867 case ARG_NO_HOSTNAME:
868 arg_no_hostname = true;
869 break;
870
d4205751
LP		 871 case 'x':
872 arg_catalog = true;
873 break;
874
875 case ARG_LIST_CATALOG:
876 arg_action = ACTION_LIST_CATALOG;
877 break;
878
54b7254c
ZJS		 879 case ARG_DUMP_CATALOG:
880 arg_action = ACTION_DUMP_CATALOG;
881 break;
882
d4205751
LP		 883 case ARG_UPDATE_CATALOG:
884 arg_action = ACTION_UPDATE_CATALOG;
885 break;
886
d89d6c86
LN		 887 case 'r':
888 arg_reverse = true;
889 break;
890
9fd29044
JS		 891 case ARG_UTC:
892 arg_utc = true;
893 break;
894
74055aa7
LP		 895 case ARG_FLUSH:
896 arg_action = ACTION_FLUSH;
897 break;
898
e3fdfb49 899 case ARG_ROTATE:
8df64fd0 900 arg_action = arg_action == ACTION_VACUUM ? ACTION_ROTATE_AND_VACUUM : ACTION_ROTATE;
e3fdfb49
EV		 901 break;
902
94b65516
LP		 903 case ARG_SYNC:
904 arg_action = ACTION_SYNC;
905 break;
906
cc25a67e
LK		 907 case ARG_OUTPUT_FIELDS: {
908 _cleanup_strv_free_ char **v = NULL;
909
910 v = strv_split(optarg, ",");
911 if (!v)
912 return log_oom();
913
1cc6c93a
YW		 914 if (!arg_output_fields)
915 arg_output_fields = TAKE_PTR(v);
916 else {
cc25a67e
LK		 917 r = strv_extend_strv(&arg_output_fields, v, true);
918 if (r < 0)
919 return log_oom();
920 }
921 break;
922 }
923
eb9da376 924 case '?':
0d43c694 925 return -EINVAL;
eb9da376
LP		 926
927 default:
928 assert_not_reached("Unhandled option");
0d43c694 929 }
0d43c694 930
70af7b8a 931 if (arg_follow && !arg_no_tail && !arg_since && arg_lines == ARG_LINES_DEFAULT)
e91af489
LP		 932 arg_lines = 10;
933
0a175093
ZJS		 934 if (!!arg_directory + !!arg_file + !!arg_machine + !!arg_root > 1) {
935 log_error("Please specify at most one of -D/--directory=, --file=, -M/--machine=, --root.");
8d98da3f
ZJS		 936 return -EINVAL;
937 }
938
3ba09ee8 939 if (arg_since_set && arg_until_set && arg_since > arg_until) {
cfbc22ab
LP		 940 log_error("--since= must be before --until=.");
941 return -EINVAL;
942 }
943
248fc619
ZJS		 944 if (!!arg_cursor + !!arg_after_cursor + !!arg_since_set > 1) {
945 log_error("Please specify only one of --since=, --cursor=, and --after-cursor.");
cfbc22ab
LP		 946 return -EINVAL;
947 }
948
d89d6c86
LN		 949 if (arg_follow && arg_reverse) {
950 log_error("Please specify either --reverse= or --follow=, not both.");
951 return -EINVAL;
952 }
953
f98a41c2 954 if (!IN_SET(arg_action, ACTION_SHOW, ACTION_DUMP_CATALOG, ACTION_LIST_CATALOG) && optind < argc) {
0b6b7c20
ZJS		 955 log_error("Extraneous arguments starting with '%s'", argv[optind]);
956 return -EINVAL;
957 }
958
f3bd7561
ZJS		 959 if ((arg_boot || arg_action == ACTION_LIST_BOOTS) && arg_merge) {
960 log_error("Using --boot or --list-boots with --merge is not supported.");
596a2329
JJ		 961 return -EINVAL;
962 }
963
e79d0b59 964 if (!strv_isempty(arg_system_units) && arg_journal_type == SD_JOURNAL_CURRENT_USER) {
52051dd8
LP		 965 /* Specifying --user and --unit= at the same time makes no sense (as the former excludes the user
966 * journal, but the latter excludes the system journal, thus resulting in empty output). Let's be nice
967 * to users, and automatically turn --unit= into --user-unit= if combined with --user. */
968 r = strv_extend_strv(&arg_user_units, arg_system_units, true);
969 if (r < 0)
e50412ef 970 return r;
52051dd8
LP		 971
972 arg_system_units = strv_free(arg_system_units);
973 }
974
61c5f8a1
ZJS		 975#if HAVE_PCRE2
976 if (arg_pattern) {
977 unsigned flags;
978
979 if (arg_case_sensitive >= 0)
980 flags = !arg_case_sensitive * PCRE2_CASELESS;
981 else {
982 _cleanup_(pcre2_match_data_freep) pcre2_match_data *md = NULL;
983 bool has_case;
984 _cleanup_(pcre2_code_freep) pcre2_code *cs = NULL;
985
986 md = pcre2_match_data_create(1, NULL);
987 if (!md)
988 return log_oom();
989
990 r = pattern_compile("[[:upper:]]", 0, &cs);
991 if (r < 0)
992 return r;
993
994 r = pcre2_match(cs, (PCRE2_SPTR8) arg_pattern, PCRE2_ZERO_TERMINATED, 0, 0, md, NULL);
995 has_case = r >= 0;
996
997 flags = !has_case * PCRE2_CASELESS;
998 }
999
1000 log_debug("Doing case %s matching based on %s",
1001 flags & PCRE2_CASELESS ? "insensitive" : "sensitive",
1002 arg_case_sensitive >= 0 ? "request" : "pattern casing");
1003
1004 r = pattern_compile(arg_pattern, flags, &arg_compiled_pattern);
1005 if (r < 0)
1006 return r;
1007 }
1008#endif
1009
0d43c694
LP		 1010 return 1;
1011}
1012
a963990f
LP		 1013static int add_matches(sd_journal *j, char **args) {
1014 char **i;
4e602943 1015 bool have_term = false;
59cea26a 1016
a963990f 1017 assert(j);
59cea26a 1018
a963990f 1019 STRV_FOREACH(i, args) {
52aeb63c 1020 int r;
59cea26a 1021
4e602943
ZJS		 1022 if (streq(*i, "+")) {
1023 if (!have_term)
1024 break;
cbdca852 1025 r = sd_journal_add_disjunction(j);
4e602943
ZJS		 1026 have_term = false;
1027
1028 } else if (path_is_absolute(*i)) {
e1873695 1029 _cleanup_free_ char *p = NULL, *t = NULL, *t2 = NULL, *interpreter = NULL;
a963990f 1030 struct stat st;
e5124088 1031
62570f6f 1032 r = chase_symlinks(*i, NULL, CHASE_TRAIL_SLASH, &p);
e1873695
LP		 1033 if (r < 0)
1034 return log_error_errno(r, "Couldn't canonicalize path: %m");
e5124088 1035
e1873695 1036 if (lstat(p, &st) < 0)
4a62c710 1037 return log_error_errno(errno, "Couldn't stat file: %m");
e5124088 1038
68fee104 1039 if (S_ISREG(st.st_mode) && (0111 & st.st_mode)) {
e1873695 1040 if (executable_is_script(p, &interpreter) > 0) {
68fee104
ZJS		 1041 _cleanup_free_ char *comm;
1042
e1873695 1043 comm = strndup(basename(p), 15);
68fee104
ZJS		 1044 if (!comm)
1045 return log_oom();
1046
1047 t = strappend("_COMM=", comm);
795ab08f
MS		 1048 if (!t)
1049 return log_oom();
68fee104
ZJS		 1050
1051 /* Append _EXE only if the interpreter is not a link.
73e231ab 1052 Otherwise, it might be outdated often. */
795ab08f 1053 if (lstat(interpreter, &st) == 0 && !S_ISLNK(st.st_mode)) {
68fee104
ZJS		 1054 t2 = strappend("_EXE=", interpreter);
1055 if (!t2)
1056 return log_oom();
1057 }
795ab08f 1058 } else {
e1873695 1059 t = strappend("_EXE=", p);
795ab08f
MS		 1060 if (!t)
1061 return log_oom();
1062 }
1063
1064 r = sd_journal_add_match(j, t, 0);
1065
1066 if (r >=0 && t2)
1067 r = sd_journal_add_match(j, t2, 0);
1068
1069 } else if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode)) {
e1873695 1070 r = add_matches_for_device(j, p);
795ab08f
MS		 1071 if (r < 0)
1072 return r;
baaa35ad
ZJS		 1073 } else
1074 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1075 "File is neither a device node, nor regular file, nor executable: %s",
1076 *i);
e5124088 1077
4e602943 1078 have_term = true;
4e602943 1079 } else {
cbdca852 1080 r = sd_journal_add_match(j, *i, 0);
4e602943
ZJS		 1081 have_term = true;
1082 }
e5124088 1083
23bbb0de
MS		 1084 if (r < 0)
1085 return log_error_errno(r, "Failed to add match '%s': %m", *i);
de7b95cd
LP		 1086 }
1087
baaa35ad
ZJS		 1088 if (!strv_isempty(args) && !have_term)
1089 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1090 "\"+\" can only be used between terms");
4e602943 1091
a963990f
LP		 1092 return 0;
1093}
1094
9530e0d0
LP		 1095static void boot_id_free_all(BootId *l) {
1096
1097 while (l) {
1098 BootId *i = l;
1099 LIST_REMOVE(boot_list, l, i);
1100 free(i);
1101 }
1102}
1103
dc009662
LP		 1104static int discover_next_boot(sd_journal *j,
1105 sd_id128_t previous_boot_id,
1106 bool advance_older,
1107 BootId **ret) {
45bc27b6 1108
45bc27b6 1109 _cleanup_free_ BootId *next_boot = NULL;
dc009662
LP		 1110 char match[9+32+1] = "_BOOT_ID=";
1111 sd_id128_t boot_id;
1112 int r;
ea7061e4
JJ		 1113
1114 assert(j);
dc009662 1115 assert(ret);
596a2329
JJ		 1116
1117 /* We expect the journal to be on the last position of a boot
1118 * (in relation to the direction we are going), so that the next
1119 * invocation of sd_journal_next/previous will be from a different
1120 * boot. We then collect any information we desire and then jump
1121 * to the last location of the new boot by using a _BOOT_ID match
1122 * coming from the other journal direction. */
1123
1124 /* Make sure we aren't restricted by any _BOOT_ID matches, so that
1125 * we can actually advance to a *different* boot. */
1126 sd_journal_flush_matches(j);
1127
dc009662
LP		 1128 do {
1129 if (advance_older)
1130 r = sd_journal_previous(j);
1131 else
1132 r = sd_journal_next(j);
1133 if (r < 0)
1134 return r;
1135 else if (r == 0)
1136 return 0; /* End of journal, yay. */
1137
1138 r = sd_journal_get_monotonic_usec(j, NULL, &boot_id);
1139 if (r < 0)
1140 return r;
1141
1142 /* We iterate through this in a loop, until the boot ID differs from the previous one. Note that
1143 * normally, this will only require a single iteration, as we seeked to the last entry of the previous
1144 * boot entry already. However, it might happen that the per-journal-field entry arrays are less
1145 * complete than the main entry array, and hence might reference an entry that's not actually the last
1146 * one of the boot ID as last one. Let's hence use the per-field array is initial seek position to
1147 * speed things up, but let's not trust that it is complete, and hence, manually advance as
1148 * necessary. */
1149
1150 } while (sd_id128_equal(boot_id, previous_boot_id));
596a2329 1151
45bc27b6 1152 next_boot = new0(BootId, 1);
596a2329 1153 if (!next_boot)
b56d608e 1154 return -ENOMEM;
f1188074 1155
dc009662 1156 next_boot->id = boot_id;
f1188074 1157
d1bf9dc9
LP		 1158 r = sd_journal_get_realtime_usec(j, &next_boot->first);
1159 if (r < 0)
1160 return r;
ea7061e4 1161
596a2329
JJ		 1162 /* Now seek to the last occurrence of this boot ID. */
1163 sd_id128_to_string(next_boot->id, match + 9);
1164 r = sd_journal_add_match(j, match, sizeof(match) - 1);
1165 if (r < 0)
1166 return r;
f1188074 1167
596a2329
JJ		 1168 if (advance_older)
1169 r = sd_journal_seek_head(j);
1170 else
1171 r = sd_journal_seek_tail(j);
1172 if (r < 0)
1173 return r;
f1188074 1174
596a2329
JJ		 1175 if (advance_older)
1176 r = sd_journal_next(j);
1177 else
1178 r = sd_journal_previous(j);
1179 if (r < 0)
1180 return r;
baaa35ad
ZJS		 1181 else if (r == 0)
1182 return log_debug_errno(SYNTHETIC_ERRNO(ENODATA),
1183 "Whoopsie! We found a boot ID but can't read its last entry."); /* This shouldn't happen. We just came from this very boot ID. */
f1188074 1184
d1bf9dc9
LP		 1185 r = sd_journal_get_realtime_usec(j, &next_boot->last);
1186 if (r < 0)
1187 return r;
596a2329 1188
1cc6c93a 1189 *ret = TAKE_PTR(next_boot);
9530e0d0 1190
596a2329
JJ		 1191 return 0;
1192}
1193
45bc27b6
LP		 1194static int get_boots(
1195 sd_journal *j,
1196 BootId **boots,
07ff6b08
ZJS		 1197 sd_id128_t *boot_id,
1198 int offset) {
45bc27b6 1199
596a2329
JJ		 1200 bool skip_once;
1201 int r, count = 0;
ec02a6c9 1202 BootId *head = NULL, *tail = NULL, *id;
07ff6b08 1203 const bool advance_older = boot_id && offset <= 0;
dc009662 1204 sd_id128_t previous_boot_id;
596a2329
JJ		 1205
1206 assert(j);
f1188074 1207
596a2329
JJ		 1208 /* Adjust for the asymmetry that offset 0 is
1209 * the last (and current) boot, while 1 is considered the
1210 * (chronological) first boot in the journal. */
592855c3 1211 skip_once = boot_id && sd_id128_is_null(*boot_id) && offset <= 0;
596a2329
JJ		 1212
1213 /* Advance to the earliest/latest occurrence of our reference
1214 * boot ID (taking our lookup direction into account), so that
1215 * discover_next_boot() can do its job.
1216 * If no reference is given, the journal head/tail will do,
1217 * they're "virtual" boots after all. */
07ff6b08 1218 if (boot_id && !sd_id128_is_null(*boot_id)) {
596a2329
JJ		 1219 char match[9+32+1] = "_BOOT_ID=";
1220
1221 sd_journal_flush_matches(j);
1222
07ff6b08 1223 sd_id128_to_string(*boot_id, match + 9);
596a2329 1224 r = sd_journal_add_match(j, match, sizeof(match) - 1);
f1188074
ZJS		 1225 if (r < 0)
1226 return r;
1227
596a2329 1228 if (advance_older)
c4fbc6b6 1229 r = sd_journal_seek_head(j); /* seek to oldest */
596a2329 1230 else
c4fbc6b6 1231 r = sd_journal_seek_tail(j); /* seek to newest */
f1188074
ZJS		 1232 if (r < 0)
1233 return r;
1234
596a2329 1235 if (advance_older)
c4fbc6b6 1236 r = sd_journal_next(j); /* read the oldest entry */
596a2329 1237 else
c4fbc6b6 1238 r = sd_journal_previous(j); /* read the most recently added entry */
f1188074
ZJS		 1239 if (r < 0)
1240 return r;
1241 else if (r == 0)
596a2329 1242 goto finish;
07ff6b08 1243 else if (offset == 0) {
596a2329
JJ		 1244 count = 1;
1245 goto finish;
1246 }
c4fbc6b6
LP		 1247
1248 /* At this point the read pointer is positioned at the oldest/newest occurence of the reference boot
1249 * ID. After flushing the matches, one more invocation of _previous()/_next() will hence place us at
1250 * the following entry, which must then have an older/newer boot ID */
596a2329 1251 } else {
c4fbc6b6 1252
596a2329 1253 if (advance_older)
c4fbc6b6 1254 r = sd_journal_seek_tail(j); /* seek to newest */
596a2329 1255 else
c4fbc6b6 1256 r = sd_journal_seek_head(j); /* seek to oldest */
f1188074
ZJS		 1257 if (r < 0)
1258 return r;
1259
c4fbc6b6
LP		 1260 /* No sd_journal_next()/_previous() here.
1261 *
1262 * At this point the read pointer is positioned after the newest/before the oldest entry in the whole
1263 * journal. The next invocation of _previous()/_next() will hence position us at the newest/oldest
1264 * entry we have. */
596a2329 1265 }
f1188074 1266
dc009662 1267 previous_boot_id = SD_ID128_NULL;
45bc27b6
LP		 1268 for (;;) {
1269 _cleanup_free_ BootId *current = NULL;
f1188074 1270
dc009662 1271 r = discover_next_boot(j, previous_boot_id, advance_older, &current);
596a2329 1272 if (r < 0) {
9530e0d0 1273 boot_id_free_all(head);
596a2329 1274 return r;
ea7061e4 1275 }
f1188074 1276
596a2329
JJ		 1277 if (!current)
1278 break;
1279
dc009662
LP		 1280 previous_boot_id = current->id;
1281
07ff6b08 1282 if (boot_id) {
596a2329 1283 if (!skip_once)
07ff6b08 1284 offset += advance_older ? 1 : -1;
596a2329
JJ		 1285 skip_once = false;
1286
07ff6b08 1287 if (offset == 0) {
596a2329 1288 count = 1;
07ff6b08 1289 *boot_id = current->id;
596a2329
JJ		 1290 break;
1291 }
1292 } else {
ec02a6c9
HK		 1293 LIST_FOREACH(boot_list, id, head) {
1294 if (sd_id128_equal(id->id, current->id)) {
1295 /* boot id already stored, something wrong with the journal files */
1296 /* exiting as otherwise this problem would cause forever loop */
1297 goto finish;
1298 }
1299 }
596a2329 1300 LIST_INSERT_AFTER(boot_list, head, tail, current);
1cc6c93a 1301 tail = TAKE_PTR(current);
596a2329
JJ		 1302 count++;
1303 }
f1188074
ZJS		 1304 }
1305
596a2329
JJ		 1306finish:
1307 if (boots)
1308 *boots = head;
1309
1310 sd_journal_flush_matches(j);
1311
1312 return count;
ea7061e4
JJ		 1313}
1314
1315static int list_boots(sd_journal *j) {
596a2329 1316 int w, i, count;
9530e0d0 1317 BootId *id, *all_ids;
ea7061e4
JJ		 1318
1319 assert(j);
1320
596a2329 1321 count = get_boots(j, &all_ids, NULL, 0);
b56d608e
LP		 1322 if (count < 0)
1323 return log_error_errno(count, "Failed to determine boots: %m");
1324 if (count == 0)
596a2329 1325 return count;
ea7061e4 1326
0221d68a 1327 (void) pager_open(arg_pager_flags);
f1188074
ZJS		 1328
1329 /* numbers are one less, but we need an extra char for the sign */
1330 w = DECIMAL_STR_WIDTH(count - 1) + 1;
1331
596a2329 1332 i = 0;
9530e0d0 1333 LIST_FOREACH(boot_list, id, all_ids) {
f1188074
ZJS		 1334 char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX];
1335
1336 printf("% *i " SD_ID128_FORMAT_STR " %s—%s\n",
1337 w, i - count + 1,
1338 SD_ID128_FORMAT_VAL(id->id),
5ab99e07
LP		 1339 format_timestamp_maybe_utc(a, sizeof(a), id->first),
1340 format_timestamp_maybe_utc(b, sizeof(b), id->last));
596a2329 1341 i++;
d121b396 1342 }
a963990f 1343
9530e0d0
LP		 1344 boot_id_free_all(all_ids);
1345
a331b5e6
JJ		 1346 return 0;
1347}
1348
1349static int add_boot(sd_journal *j) {
1350 char match[9+32+1] = "_BOOT_ID=";
07ff6b08 1351 sd_id128_t boot_id;
442e2def 1352 int r;
a331b5e6
JJ		 1353
1354 assert(j);
1355
d121b396 1356 if (!arg_boot)
a331b5e6
JJ		 1357 return 0;
1358
592855c3
ZJS		 1359 /* Take a shortcut and use the current boot_id, which we can do very quickly.
1360 * We can do this only when we logs are coming from the current machine,
1361 * so take the slow path if log location is specified. */
3bbaff3e 1362 if (arg_boot_offset == 0 && sd_id128_is_null(arg_boot_id) &&
0a175093 1363 !arg_directory && !arg_file && !arg_root)
592855c3 1364
b6741478 1365 return add_match_this_boot(j, arg_machine);
a331b5e6 1366
07ff6b08
ZJS		 1367 boot_id = arg_boot_id;
1368 r = get_boots(j, NULL, &boot_id, arg_boot_offset);
596a2329
JJ		 1369 assert(r <= 1);
1370 if (r <= 0) {
1371 const char *reason = (r == 0) ? "No such boot ID in journal" : strerror(-r);
1372
1373 if (sd_id128_is_null(arg_boot_id))
c34e9399
JS		 1374 log_error("Data from the specified boot (%+i) is not available: %s",
1375 arg_boot_offset, reason);
d121b396 1376 else
c34e9399
JS		 1377 log_error("Data from the specified boot ("SD_ID128_FORMAT_STR") is not available: %s",
1378 SD_ID128_FORMAT_VAL(arg_boot_id), reason);
596a2329
JJ		 1379
1380 return r == 0 ? -ENODATA : r;
a331b5e6
JJ		 1381 }
1382
07ff6b08 1383 sd_id128_to_string(boot_id, match + 9);
d121b396
ZJS		 1384
1385 r = sd_journal_add_match(j, match, sizeof(match) - 1);
23bbb0de
MS		 1386 if (r < 0)
1387 return log_error_errno(r, "Failed to add match: %m");
a331b5e6
JJ		 1388
1389 r = sd_journal_add_conjunction(j);
1390 if (r < 0)
b56d608e 1391 return log_error_errno(r, "Failed to add conjunction: %m");
a331b5e6
JJ		 1392
1393 return 0;
a963990f
LP		 1394}
1395
99271804
ZJS		 1396static int add_dmesg(sd_journal *j) {
1397 int r;
1398 assert(j);
1399
1400 if (!arg_dmesg)
1401 return 0;
1402
fbd0b64f
LP		 1403 r = sd_journal_add_match(j, "_TRANSPORT=kernel",
1404 STRLEN("_TRANSPORT=kernel"));
23bbb0de
MS		 1405 if (r < 0)
1406 return log_error_errno(r, "Failed to add match: %m");
99271804
ZJS		 1407
1408 r = sd_journal_add_conjunction(j);
1409 if (r < 0)
b56d608e 1410 return log_error_errno(r, "Failed to add conjunction: %m");
99271804
ZJS		 1411
1412 return 0;
1413}
1414
b56d608e
LP		 1415static int get_possible_units(
1416 sd_journal *j,
1417 const char *fields,
1418 char **patterns,
1419 Set **units) {
1420
ea18a4b5
ZJS		 1421 _cleanup_set_free_free_ Set *found;
1422 const char *field;
c3f60ec5 1423 int r;
ea18a4b5 1424
d5099efc 1425 found = set_new(&string_hash_ops);
ea18a4b5 1426 if (!found)
b56d608e 1427 return -ENOMEM;
ea18a4b5
ZJS		 1428
1429 NULSTR_FOREACH(field, fields) {
1430 const void *data;
1431 size_t size;
1432
1433 r = sd_journal_query_unique(j, field);
1434 if (r < 0)
1435 return r;
1436
1437 SD_JOURNAL_FOREACH_UNIQUE(j, data, size) {
1438 char **pattern, *eq;
1439 size_t prefix;
1440 _cleanup_free_ char *u = NULL;
1441
1442 eq = memchr(data, '=', size);
1443 if (eq)
1444 prefix = eq - (char*) data + 1;
1445 else
1446 prefix = 0;
1447
1448 u = strndup((char*) data + prefix, size - prefix);
1449 if (!u)
b56d608e 1450 return -ENOMEM;
ea18a4b5
ZJS		 1451
1452 STRV_FOREACH(pattern, patterns)
1453 if (fnmatch(*pattern, u, FNM_NOESCAPE) == 0) {
1454 log_debug("Matched %s with pattern %s=%s", u, field, *pattern);
1455
1456 r = set_consume(found, u);
1457 u = NULL;
1458 if (r < 0 && r != -EEXIST)
1459 return r;
1460
1461 break;
1462 }
1463 }
1464 }
1465
1cc6c93a
YW		 1466 *units = TAKE_PTR(found);
1467
ea18a4b5
ZJS		 1468 return 0;
1469}
1470
1471/* This list is supposed to return the superset of unit names
1472 * possibly matched by rules added with add_matches_for_unit... */
1473#define SYSTEM_UNITS \
1474 "_SYSTEMD_UNIT\0" \
1475 "COREDUMP_UNIT\0" \
1476 "UNIT\0" \
1477 "OBJECT_SYSTEMD_UNIT\0" \
1478 "_SYSTEMD_SLICE\0"
1479
1480/* ... and add_matches_for_user_unit */
1481#define USER_UNITS \
1482 "_SYSTEMD_USER_UNIT\0" \
1483 "USER_UNIT\0" \
1484 "COREDUMP_USER_UNIT\0" \
1485 "OBJECT_SYSTEMD_USER_UNIT\0"
1486
1487static int add_units(sd_journal *j) {
1488 _cleanup_strv_free_ char **patterns = NULL;
1489 int r, count = 0;
b9e40524 1490 char **i;
c3f60ec5
LP		 1491
1492 assert(j);
1493
b9e40524 1494 STRV_FOREACH(i, arg_system_units) {
ea18a4b5
ZJS		 1495 _cleanup_free_ char *u = NULL;
1496
37cbc1d5 1497 r = unit_name_mangle(*i, UNIT_NAME_MANGLE_GLOB | (arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN), &u);
7410616c
LP		 1498 if (r < 0)
1499 return r;
ea18a4b5
ZJS		 1500
1501 if (string_is_glob(u)) {
1502 r = strv_push(&patterns, u);
1503 if (r < 0)
1504 return r;
1505 u = NULL;
1506 } else {
1507 r = add_matches_for_unit(j, u);
1508 if (r < 0)
1509 return r;
1510 r = sd_journal_add_disjunction(j);
1511 if (r < 0)
1512 return r;
313cefa1 1513 count++;
ea18a4b5
ZJS		 1514 }
1515 }
1516
1517 if (!strv_isempty(patterns)) {
1518 _cleanup_set_free_free_ Set *units = NULL;
1519 Iterator it;
1520 char *u;
1521
1522 r = get_possible_units(j, SYSTEM_UNITS, patterns, &units);
b9e40524
HH		 1523 if (r < 0)
1524 return r;
ea18a4b5
ZJS		 1525
1526 SET_FOREACH(u, units, it) {
1527 r = add_matches_for_unit(j, u);
1528 if (r < 0)
1529 return r;
1530 r = sd_journal_add_disjunction(j);
1531 if (r < 0)
1532 return r;
313cefa1 1533 count++;
ea18a4b5 1534 }
b9e40524 1535 }
c3f60ec5 1536
97b11eed 1537 patterns = strv_free(patterns);
ea18a4b5 1538
b9e40524 1539 STRV_FOREACH(i, arg_user_units) {
ea18a4b5
ZJS		 1540 _cleanup_free_ char *u = NULL;
1541
37cbc1d5 1542 r = unit_name_mangle(*i, UNIT_NAME_MANGLE_GLOB | (arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN), &u);
7410616c
LP		 1543 if (r < 0)
1544 return r;
c3f60ec5 1545
ea18a4b5
ZJS		 1546 if (string_is_glob(u)) {
1547 r = strv_push(&patterns, u);
1548 if (r < 0)
1549 return r;
1550 u = NULL;
1551 } else {
1552 r = add_matches_for_user_unit(j, u, getuid());
1553 if (r < 0)
1554 return r;
1555 r = sd_journal_add_disjunction(j);
1556 if (r < 0)
1557 return r;
313cefa1 1558 count++;
ea18a4b5
ZJS		 1559 }
1560 }
1561
1562 if (!strv_isempty(patterns)) {
1563 _cleanup_set_free_free_ Set *units = NULL;
1564 Iterator it;
1565 char *u;
b9e40524 1566
ea18a4b5 1567 r = get_possible_units(j, USER_UNITS, patterns, &units);
b9e40524
HH		 1568 if (r < 0)
1569 return r;
1570
ea18a4b5
ZJS		 1571 SET_FOREACH(u, units, it) {
1572 r = add_matches_for_user_unit(j, u, getuid());
1573 if (r < 0)
1574 return r;
1575 r = sd_journal_add_disjunction(j);
1576 if (r < 0)
1577 return r;
313cefa1 1578 count++;
ea18a4b5 1579 }
b9e40524 1580 }
c3f60ec5 1581
ea18a4b5
ZJS		 1582 /* Complain if the user request matches but nothing whatsoever was
1583 * found, since otherwise everything would be matched. */
1584 if (!(strv_isempty(arg_system_units) && strv_isempty(arg_user_units)) && count == 0)
1585 return -ENODATA;
1586
cd34b3c6
HH		 1587 r = sd_journal_add_conjunction(j);
1588 if (r < 0)
1589 return r;
1590
c3f60ec5
LP		 1591 return 0;
1592}
1593
941e990d
LP		 1594static int add_priorities(sd_journal *j) {
1595 char match[] = "PRIORITY=0";
1596 int i, r;
941e990d
LP		 1597 assert(j);
1598
1599 if (arg_priorities == 0xFF)
1600 return 0;
1601
1602 for (i = LOG_EMERG; i <= LOG_DEBUG; i++)
1603 if (arg_priorities & (1 << i)) {
1604 match[sizeof(match)-2] = '0' + i;
1605
941e990d 1606 r = sd_journal_add_match(j, match, strlen(match));
23bbb0de
MS		 1607 if (r < 0)
1608 return log_error_errno(r, "Failed to add match: %m");
941e990d
LP		 1609 }
1610
cd34b3c6
HH		 1611 r = sd_journal_add_conjunction(j);
1612 if (r < 0)
b56d608e 1613 return log_error_errno(r, "Failed to add conjunction: %m");
cd34b3c6 1614
941e990d
LP		 1615 return 0;
1616}
1617
73083640
HH		 1618static int add_syslog_identifier(sd_journal *j) {
1619 int r;
1620 char **i;
1621
1622 assert(j);
1623
1624 STRV_FOREACH(i, arg_syslog_identifier) {
1625 char *u;
1626
63c372cb 1627 u = strjoina("SYSLOG_IDENTIFIER=", *i);
73083640
HH		 1628 r = sd_journal_add_match(j, u, 0);
1629 if (r < 0)
1630 return r;
1631 r = sd_journal_add_disjunction(j);
1632 if (r < 0)
1633 return r;
1634 }
1635
1636 r = sd_journal_add_conjunction(j);
1637 if (r < 0)
1638 return r;
1639
1640 return 0;
1641}
1642
7560fffc 1643static int setup_keys(void) {
349cc4a5 1644#if HAVE_GCRYPT
7560fffc
LP		 1645 size_t mpk_size, seed_size, state_size, i;
1646 uint8_t *mpk, *seed, *state;
11689d2a 1647 int fd = -1, r;
7560fffc
LP		 1648 sd_id128_t machine, boot;
1649 char *p = NULL, *k = NULL;
baed47c3 1650 struct FSSHeader h;
14d10188 1651 uint64_t n;
b98e3866
SL		 1652 struct stat st;
1653
1654 r = stat("/var/log/journal", &st);
4c701096 1655 if (r < 0 && !IN_SET(errno, ENOENT, ENOTDIR))
4a62c710 1656 return log_error_errno(errno, "stat(\"%s\") failed: %m", "/var/log/journal");
b98e3866
SL		 1657
1658 if (r < 0 || !S_ISDIR(st.st_mode)) {
1659 log_error("%s is not a directory, must be using persistent logging for FSS.",
1660 "/var/log/journal");
1661 return r < 0 ? -errno : -ENOTDIR;
1662 }
7560fffc
LP		 1663
1664 r = sd_id128_get_machine(&machine);
23bbb0de
MS		 1665 if (r < 0)
1666 return log_error_errno(r, "Failed to get machine ID: %m");
7560fffc
LP		 1667
1668 r = sd_id128_get_boot(&boot);
23bbb0de
MS		 1669 if (r < 0)
1670 return log_error_errno(r, "Failed to get boot ID: %m");
7560fffc 1671
baed47c3 1672 if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss",
7560fffc
LP		 1673 SD_ID128_FORMAT_VAL(machine)) < 0)
1674 return log_oom();
1675
faf9da01
ZJS		 1676 if (arg_force) {
1677 r = unlink(p);
1678 if (r < 0 && errno != ENOENT) {
1679 r = log_error_errno(errno, "unlink(\"%s\") failed: %m", p);
b8547c10
SL		 1680 goto finish;
1681 }
faf9da01
ZJS		 1682 } else if (access(p, F_OK) >= 0) {
1683 log_error("Sealing key file %s exists already. Use --force to recreate.", p);
1684 r = -EEXIST;
1685 goto finish;
7560fffc
LP		 1686 }
1687
baed47c3 1688 if (asprintf(&k, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss.tmp.XXXXXX",
7560fffc
LP		 1689 SD_ID128_FORMAT_VAL(machine)) < 0) {
1690 r = log_oom();
1691 goto finish;
1692 }
1693
1694 mpk_size = FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR);
1695 mpk = alloca(mpk_size);
1696
1697 seed_size = FSPRG_RECOMMENDED_SEEDLEN;
1698 seed = alloca(seed_size);
1699
1700 state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR);
1701 state = alloca(state_size);
1702
1703 fd = open("/dev/random", O_RDONLY|O_CLOEXEC|O_NOCTTY);
1704 if (fd < 0) {
76ef789d 1705 r = log_error_errno(errno, "Failed to open /dev/random: %m");
7560fffc
LP		 1706 goto finish;
1707 }
1708
1709 log_info("Generating seed...");
a6dcc7e5
ZJS		 1710 r = loop_read_exact(fd, seed, seed_size, true);
1711 if (r < 0) {
1712 log_error_errno(r, "Failed to read random seed: %m");
7560fffc
LP		 1713 goto finish;
1714 }
1715
1716 log_info("Generating key pair...");
1717 FSPRG_GenMK(NULL, mpk, seed, seed_size, FSPRG_RECOMMENDED_SECPAR);
1718
baed47c3 1719 log_info("Generating sealing key...");
7560fffc
LP		 1720 FSPRG_GenState0(state, mpk, seed, seed_size);
1721
baed47c3
LP		 1722 assert(arg_interval > 0);
1723
7560fffc 1724 n = now(CLOCK_REALTIME);
baed47c3 1725 n /= arg_interval;
7560fffc 1726
03e334a1 1727 safe_close(fd);
646853bd 1728 fd = mkostemp_safe(k);
7560fffc 1729 if (fd < 0) {
709f6e46 1730 r = log_error_errno(fd, "Failed to open %s: %m", k);
7560fffc
LP		 1731 goto finish;
1732 }
1733
f982e6f7
LP		 1734 /* Enable secure remove, exclusion from dump, synchronous
1735 * writing and in-place updating */
db9a4254 1736 r = chattr_fd(fd, FS_SECRM_FL|FS_NODUMP_FL|FS_SYNC_FL|FS_NOCOW_FL, FS_SECRM_FL|FS_NODUMP_FL|FS_SYNC_FL|FS_NOCOW_FL, NULL);
11689d2a 1737 if (r < 0)
709f6e46 1738 log_warning_errno(r, "Failed to set file attributes: %m");
f982e6f7 1739
7560fffc
LP		 1740 zero(h);
1741 memcpy(h.signature, "KSHHRHLP", 8);
1742 h.machine_id = machine;
1743 h.boot_id = boot;
1744 h.header_size = htole64(sizeof(h));
baed47c3
LP		 1745 h.start_usec = htole64(n * arg_interval);
1746 h.interval_usec = htole64(arg_interval);
1747 h.fsprg_secpar = htole16(FSPRG_RECOMMENDED_SECPAR);
1748 h.fsprg_state_size = htole64(state_size);
7560fffc 1749
553acb7b
ZJS		 1750 r = loop_write(fd, &h, sizeof(h), false);
1751 if (r < 0) {
1752 log_error_errno(r, "Failed to write header: %m");
7560fffc
LP		 1753 goto finish;
1754 }
1755
553acb7b
ZJS		 1756 r = loop_write(fd, state, state_size, false);
1757 if (r < 0) {
1758 log_error_errno(r, "Failed to write state: %m");
7560fffc
LP		 1759 goto finish;
1760 }
1761
1762 if (link(k, p) < 0) {
76ef789d 1763 r = log_error_errno(errno, "Failed to link file: %m");
7560fffc
LP		 1764 goto finish;
1765 }
1766
8481248b 1767 if (on_tty()) {
7560fffc
LP		 1768 fprintf(stderr,
1769 "\n"
54f8c958 1770 "The new key pair has been generated. The %ssecret sealing key%s has been written to\n"
c05276f2
LP		 1771 "the following local file. This key file is automatically updated when the\n"
1772 "sealing key is advanced. It should not be used on multiple hosts.\n"
7560fffc
LP		 1773 "\n"
1774 "\t%s\n"
1775 "\n"
54f8c958 1776 "Please write down the following %ssecret verification key%s. It should be stored\n"
baed47c3 1777 "at a safe location and should not be saved locally on disk.\n"
54f8c958
LP		 1778 "\n\t%s",
1779 ansi_highlight(), ansi_normal(),
9ea78383 1780 p,
54f8c958 1781 ansi_highlight(), ansi_normal(),
9ea78383 1782 ansi_highlight_red());
7560fffc
LP		 1783 fflush(stderr);
1784 }
1785 for (i = 0; i < seed_size; i++) {
1786 if (i > 0 && i % 3 == 0)
1787 putchar('-');
1788 printf("%02x", ((uint8_t*) seed)[i]);
1789 }
1790
baed47c3
LP		 1791 printf("/%llx-%llx\n", (unsigned long long) n, (unsigned long long) arg_interval);
1792
8481248b 1793 if (on_tty()) {
f6a971bc 1794 char tsb[FORMAT_TIMESPAN_MAX], *hn;
7560fffc 1795
baed47c3 1796 fprintf(stderr,
54f8c958 1797 "%s\n"
baed47c3 1798 "The sealing key is automatically changed every %s.\n",
54f8c958 1799 ansi_normal(),
2fa4092c 1800 format_timespan(tsb, sizeof(tsb), arg_interval, 0));
f6a971bc
LP		 1801
1802 hn = gethostname_malloc();
1803
1804 if (hn) {
ae691c1d 1805 hostname_cleanup(hn);
adac1c93 1806 fprintf(stderr, "\nThe keys have been generated for host %s/" SD_ID128_FORMAT_STR ".\n", hn, SD_ID128_FORMAT_VAL(machine));
f6a971bc 1807 } else
adac1c93 1808 fprintf(stderr, "\nThe keys have been generated for host " SD_ID128_FORMAT_STR ".\n", SD_ID128_FORMAT_VAL(machine));
f6a971bc 1809
349cc4a5 1810#if HAVE_QRENCODE
cf5a3432 1811 /* If this is not an UTF-8 system don't print any QR codes */
09017585 1812 if (is_locale_utf8()) {
cf5a3432
LP		 1813 fputs("\nTo transfer the verification key to your phone please scan the QR code below:\n\n", stderr);
1814 print_qr_code(stderr, seed, seed_size, n, arg_interval, hn, machine);
1815 }
f6a971bc
LP		 1816#endif
1817 free(hn);
baed47c3 1818 }
7560fffc
LP		 1819
1820 r = 0;
1821
1822finish:
03e334a1 1823 safe_close(fd);
7560fffc
LP		 1824
1825 if (k) {
1826 unlink(k);
1827 free(k);
1828 }
1829
1830 free(p);
1831
1832 return r;
1833#else
baaa35ad
ZJS		 1834 return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
1835 "Forward-secure sealing not available.");
7560fffc
LP		 1836#endif
1837}
1838
beec0085
LP		 1839static int verify(sd_journal *j) {
1840 int r = 0;
1841 Iterator i;
1842 JournalFile *f;
1843
1844 assert(j);
1845
cedb42bb
LP		 1846 log_show_color(true);
1847
c1f906bd 1848 ORDERED_HASHMAP_FOREACH(f, j->files, i) {
beec0085 1849 int k;
a7f7d1bd 1850 usec_t first = 0, validated = 0, last = 0;
beec0085 1851
349cc4a5 1852#if HAVE_GCRYPT
feb12d3e 1853 if (!arg_verify_key && JOURNAL_HEADER_SEALED(f->header))
cedb42bb 1854 log_notice("Journal file %s has sealing enabled but verification key has not been passed using --verify-key=.", f->path);
56e81f7c 1855#endif
4da416aa 1856
2a7b539a 1857 k = journal_file_verify(f, arg_verify_key, &first, &validated, &last, true);
56e81f7c 1858 if (k == -EINVAL) {
baed47c3 1859 /* If the key was invalid give up right-away. */
56e81f7c
LP		 1860 return k;
1861 } else if (k < 0) {
e53fc357 1862 log_warning_errno(k, "FAIL: %s (%m)", f->path);
56e81f7c 1863 r = k;
6c7be122
LP		 1864 } else {
1865 char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX], c[FORMAT_TIMESPAN_MAX];
beec0085 1866 log_info("PASS: %s", f->path);
6c7be122 1867
c0ca7aee 1868 if (arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) {
2a7b539a 1869 if (validated > 0) {
c0ca7aee 1870 log_info("=> Validated from %s to %s, final %s entries not sealed.",
5ab99e07
LP		 1871 format_timestamp_maybe_utc(a, sizeof(a), first),
1872 format_timestamp_maybe_utc(b, sizeof(b), validated),
2fa4092c 1873 format_timespan(c, sizeof(c), last > validated ? last - validated : 0, 0));
2a7b539a 1874 } else if (last > 0)
c0ca7aee 1875 log_info("=> No sealing yet, %s of entries not sealed.",
2fa4092c 1876 format_timespan(c, sizeof(c), last - first, 0));
c0ca7aee
LP		 1877 else
1878 log_info("=> No sealing yet, no entries in file.");
1879 }
6c7be122 1880 }
beec0085
LP		 1881 }
1882
1883 return r;
1884}
1885
74055aa7 1886static int flush_to_var(void) {
4afd3348
LP		 1887 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1888 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
74055aa7
LP		 1889 _cleanup_close_ int watch_fd = -1;
1890 int r;
1891
176ee07b
LP		 1892 if (arg_machine) {
1893 log_error("--flush is not supported in conjunction with --machine=.");
1894 return -EOPNOTSUPP;
1895 }
1896
74055aa7
LP		 1897 /* Quick exit */
1898 if (access("/run/systemd/journal/flushed", F_OK) >= 0)
1899 return 0;
1900
1901 /* OK, let's actually do the full logic, send SIGUSR1 to the
1902 * daemon and set up inotify to wait for the flushed file to appear */
266f3e26 1903 r = bus_connect_system_systemd(&bus);
23bbb0de
MS		 1904 if (r < 0)
1905 return log_error_errno(r, "Failed to get D-Bus connection: %m");
74055aa7
LP		 1906
1907 r = sd_bus_call_method(
1908 bus,
1909 "org.freedesktop.systemd1",
1910 "/org/freedesktop/systemd1",
1911 "org.freedesktop.systemd1.Manager",
1912 "KillUnit",
1913 &error,
1914 NULL,
1915 "ssi", "systemd-journald.service", "main", SIGUSR1);
94b65516
LP		 1916 if (r < 0)
1917 return log_error_errno(r, "Failed to kill journal service: %s", bus_error_message(&error, r));
74055aa7
LP		 1918
1919 mkdir_p("/run/systemd/journal", 0755);
1920
1921 watch_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
4a62c710
MS		 1922 if (watch_fd < 0)
1923 return log_error_errno(errno, "Failed to create inotify watch: %m");
74055aa7
LP		 1924
1925 r = inotify_add_watch(watch_fd, "/run/systemd/journal", IN_CREATE|IN_DONT_FOLLOW|IN_ONLYDIR);
4a62c710
MS		 1926 if (r < 0)
1927 return log_error_errno(errno, "Failed to watch journal directory: %m");
74055aa7
LP		 1928
1929 for (;;) {
1930 if (access("/run/systemd/journal/flushed", F_OK) >= 0)
1931 break;
1932
4a62c710 1933 if (errno != ENOENT)
f131770b 1934 return log_error_errno(errno, "Failed to check for existence of /run/systemd/journal/flushed: %m");
74055aa7
LP		 1935
1936 r = fd_wait_for_event(watch_fd, POLLIN, USEC_INFINITY);
23bbb0de
MS		 1937 if (r < 0)
1938 return log_error_errno(r, "Failed to wait for event: %m");
74055aa7
LP		 1939
1940 r = flush_fd(watch_fd);
23bbb0de
MS		 1941 if (r < 0)
1942 return log_error_errno(r, "Failed to flush inotify events: %m");
74055aa7
LP		 1943 }
1944
1945 return 0;
1946}
1947
dbd6e31c 1948static int send_signal_and_wait(int sig, const char *watch_path) {
4afd3348 1949 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
94b65516
LP		 1950 _cleanup_close_ int watch_fd = -1;
1951 usec_t start;
1952 int r;
1953
176ee07b
LP		 1954 if (arg_machine) {
1955 log_error("--sync and --rotate are not supported in conjunction with --machine=.");
1956 return -EOPNOTSUPP;
1957 }
1958
33d52ab9 1959 start = now(CLOCK_MONOTONIC);
94b65516 1960
dbd6e31c
LP		 1961 /* This call sends the specified signal to journald, and waits
1962 * for acknowledgment by watching the mtime of the specified
1963 * flag file. This is used to trigger syncing or rotation and
1964 * then wait for the operation to complete. */
94b65516
LP		 1965
1966 for (;;) {
33d52ab9 1967 usec_t tstamp;
94b65516
LP		 1968
1969 /* See if a sync happened by now. */
33d52ab9
LP		 1970 r = read_timestamp_file(watch_path, &tstamp);
1971 if (r < 0 && r != -ENOENT)
e5b2d45c 1972 return log_error_errno(r, "Failed to read %s: %m", watch_path);
33d52ab9
LP		 1973 if (r >= 0 && tstamp >= start)
1974 return 0;
94b65516
LP		 1975
1976 /* Let's ask for a sync, but only once. */
1977 if (!bus) {
4afd3348 1978 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
94b65516
LP		 1979
1980 r = bus_connect_system_systemd(&bus);
1981 if (r < 0)
1982 return log_error_errno(r, "Failed to get D-Bus connection: %m");
1983
1984 r = sd_bus_call_method(
1985 bus,
1986 "org.freedesktop.systemd1",
1987 "/org/freedesktop/systemd1",
1988 "org.freedesktop.systemd1.Manager",
1989 "KillUnit",
1990 &error,
1991 NULL,
dbd6e31c 1992 "ssi", "systemd-journald.service", "main", sig);
94b65516
LP		 1993 if (r < 0)
1994 return log_error_errno(r, "Failed to kill journal service: %s", bus_error_message(&error, r));
1995
1996 continue;
1997 }
1998
1999 /* Let's install the inotify watch, if we didn't do that yet. */
2000 if (watch_fd < 0) {
2001
2002 mkdir_p("/run/systemd/journal", 0755);
2003
2004 watch_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
2005 if (watch_fd < 0)
2006 return log_error_errno(errno, "Failed to create inotify watch: %m");
2007
33d52ab9 2008 r = inotify_add_watch(watch_fd, "/run/systemd/journal", IN_MOVED_TO|IN_DONT_FOLLOW|IN_ONLYDIR);
94b65516
LP		 2009 if (r < 0)
2010 return log_error_errno(errno, "Failed to watch journal directory: %m");
2011
2012 /* Recheck the flag file immediately, so that we don't miss any event since the last check. */
2013 continue;
2014 }
2015
2016 /* OK, all preparatory steps done, let's wait until
2017 * inotify reports an event. */
2018
2019 r = fd_wait_for_event(watch_fd, POLLIN, USEC_INFINITY);
2020 if (r < 0)
2021 return log_error_errno(r, "Failed to wait for event: %m");
2022
2023 r = flush_fd(watch_fd);
2024 if (r < 0)
2025 return log_error_errno(r, "Failed to flush inotify events: %m");
2026 }
2027
2028 return 0;
2029}
2030
dbd6e31c
LP		 2031static int rotate(void) {
2032 return send_signal_and_wait(SIGUSR2, "/run/systemd/journal/rotated");
2033}
2034
2035static int sync_journal(void) {
2036 return send_signal_and_wait(SIGRTMIN+1, "/run/systemd/journal/synced");
2037}
2038
2a1e0f22
LP		 2039static int wait_for_change(sd_journal *j, int poll_fd) {
2040 struct pollfd pollfds[] = {
2041 { .fd = poll_fd, .events = POLLIN },
2042 { .fd = STDOUT_FILENO },
2043 };
2044
2045 struct timespec ts;
2046 usec_t timeout;
a963990f 2047 int r;
2a1e0f22
LP		 2048
2049 assert(j);
2050 assert(poll_fd >= 0);
2051
2052 /* Much like sd_journal_wait() but also keeps an eye on STDOUT, and exits as soon as we see a POLLHUP on that,
2053 * i.e. when it is closed. */
2054
2055 r = sd_journal_get_timeout(j, &timeout);
2056 if (r < 0)
2057 return log_error_errno(r, "Failed to determine journal waiting time: %m");
2058
8e143a12
ZJS		 2059 if (ppoll(pollfds, ELEMENTSOF(pollfds),
2060 timeout == USEC_INFINITY ? NULL : timespec_store(&ts, timeout), NULL) < 0) {
2061 if (errno == EINTR)
2062 return 0;
2063
2a1e0f22 2064 return log_error_errno(errno, "Couldn't wait for journal event: %m");
8e143a12 2065 }
2a1e0f22 2066
baaa35ad
ZJS		 2067 if (pollfds[1].revents & (POLLHUP|POLLERR)) /* STDOUT has been closed? */
2068 return log_debug_errno(SYNTHETIC_ERRNO(ECANCELED),
2069 "Standard output has been closed.");
2a1e0f22
LP		 2070
2071 r = sd_journal_process(j);
2072 if (r < 0)
2073 return log_error_errno(r, "Failed to process journal events: %m");
2074
2075 return 0;
2076}
2077
2078int main(int argc, char *argv[]) {
2079 bool previous_boot_id_valid = false, first_line = true, ellipsized = false, need_seek = false;
4afd3348 2080 _cleanup_(sd_journal_closep) sd_journal *j = NULL;
14a65d65 2081 sd_id128_t previous_boot_id;
2a1e0f22 2082 int n_shown = 0, r, poll_fd = -1;
a963990f 2083
a9cdc94f 2084 setlocale(LC_ALL, "");
a963990f
LP		 2085 log_parse_environment();
2086 log_open();
2087
1abaf488
LP		 2088 /* Increase max number of open files if we can, we might needs this when browsing journal files, which might be
2089 * split up into many files. */
2090 (void) rlimit_nofile_bump(HIGH_RLIMIT_NOFILE);
2091
a963990f
LP		 2092 r = parse_argv(argc, argv);
2093 if (r <= 0)
2094 goto finish;
2095
ed757c0c 2096 signal(SIGWINCH, columns_lines_cache_reset);
2cf4172a 2097 sigbus_install();
ed757c0c 2098
a020b3b3 2099 switch (arg_action) {
94b65516 2100
a020b3b3 2101 case ACTION_NEW_ID128:
0d1d512f 2102 r = id128_print_new(true);
e3fdfb49 2103 goto finish;
e3fdfb49 2104
a020b3b3 2105 case ACTION_SETUP_KEYS:
7560fffc
LP		 2106 r = setup_keys();
2107 goto finish;
844ec79b 2108
a020b3b3
LP		 2109 case ACTION_LIST_CATALOG:
2110 case ACTION_DUMP_CATALOG:
2111 case ACTION_UPDATE_CATALOG: {
0c6ea3a4
ZJS		 2112 _cleanup_free_ char *database;
2113
652ef298 2114 database = path_join(arg_root, CATALOG_DATABASE);
0c6ea3a4
ZJS		 2115 if (!database) {
2116 r = log_oom();
2117 goto finish;
13cbf3a5
ZJS		 2118 }
2119
844ec79b 2120 if (arg_action == ACTION_UPDATE_CATALOG) {
13cbf3a5 2121 r = catalog_update(database, arg_root, catalog_file_dirs);
844ec79b 2122 if (r < 0)
da927ba9 2123 log_error_errno(r, "Failed to list catalog: %m");
844ec79b
ZJS		 2124 } else {
2125 bool oneline = arg_action == ACTION_LIST_CATALOG;
2126
0221d68a 2127 (void) pager_open(arg_pager_flags);
a020b3b3 2128
844ec79b 2129 if (optind < argc)
a020b3b3 2130 r = catalog_list_items(stdout, database, oneline, argv + optind);
844ec79b 2131 else
13cbf3a5 2132 r = catalog_list(stdout, database, oneline);
844ec79b 2133 if (r < 0)
da927ba9 2134 log_error_errno(r, "Failed to list catalog: %m");
844ec79b 2135 }
d4205751 2136
d4205751
LP		 2137 goto finish;
2138 }
2139
a020b3b3
LP		 2140 case ACTION_FLUSH:
2141 r = flush_to_var();
2142 goto finish;
2143
2144 case ACTION_SYNC:
2145 r = sync_journal();
2146 goto finish;
2147
2148 case ACTION_ROTATE:
2149 r = rotate();
2150 goto finish;
2151
2152 case ACTION_SHOW:
2153 case ACTION_PRINT_HEADER:
2154 case ACTION_VERIFY:
2155 case ACTION_DISK_USAGE:
2156 case ACTION_LIST_BOOTS:
2157 case ACTION_VACUUM:
8df64fd0 2158 case ACTION_ROTATE_AND_VACUUM:
69e714f3
LP		 2159 case ACTION_LIST_FIELDS:
2160 case ACTION_LIST_FIELD_NAMES:
a020b3b3
LP		 2161 /* These ones require access to the journal files, continue below. */
2162 break;
2163
2164 default:
2165 assert_not_reached("Unknown action");
2166 }
2167
a963990f 2168 if (arg_directory)
3f3a438f 2169 r = sd_journal_open_directory(&j, arg_directory, arg_journal_type);
0a175093
ZJS		 2170 else if (arg_root)
2171 r = sd_journal_open_directory(&j, arg_root, arg_journal_type | SD_JOURNAL_OS_ROOT);
5d1ce257
LP		 2172 else if (arg_file_stdin) {
2173 int ifd = STDIN_FILENO;
2174 r = sd_journal_open_files_fd(&j, &ifd, 1, 0);
2175 } else if (arg_file)
8d98da3f 2176 r = sd_journal_open_files(&j, (const char**) arg_file, 0);
d38c62cc
LP		 2177 else if (arg_machine) {
2178 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2179 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2180 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
2181 int fd;
2182
2183 if (geteuid() != 0) {
2184 /* The file descriptor returned by OpenMachineRootDirectory() will be owned by users/groups of
2185 * the container, thus we need root privileges to override them. */
2186 log_error("Using the --machine= switch requires root privileges.");
2187 r = -EPERM;
2188 goto finish;
2189 }
2190
2191 r = sd_bus_open_system(&bus);
2192 if (r < 0) {
2193 log_error_errno(r, "Failed to open system bus: %m");
2194 goto finish;
2195 }
2196
2197 r = sd_bus_call_method(
2198 bus,
2199 "org.freedesktop.machine1",
2200 "/org/freedesktop/machine1",
2201 "org.freedesktop.machine1.Manager",
2202 "OpenMachineRootDirectory",
2203 &error,
2204 &reply,
2205 "s", arg_machine);
2206 if (r < 0) {
2207 log_error_errno(r, "Failed to open root directory: %s", bus_error_message(&error, r));
2208 goto finish;
2209 }
2210
2211 r = sd_bus_message_read(reply, "h", &fd);
2212 if (r < 0) {
2213 bus_log_parse_error(r);
2214 goto finish;
2215 }
2216
2217 fd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
2218 if (fd < 0) {
2219 r = log_error_errno(errno, "Failed to duplicate file descriptor: %m");
2220 goto finish;
2221 }
2222
2223 r = sd_journal_open_directory_fd(&j, fd, SD_JOURNAL_OS_ROOT);
2224 if (r < 0)
2225 safe_close(fd);
2226 } else
3f3a438f 2227 r = sd_journal_open(&j, !arg_merge*SD_JOURNAL_LOCAL_ONLY + arg_journal_type);
a963990f 2228 if (r < 0) {
a020b3b3 2229 log_error_errno(r, "Failed to open %s: %m", arg_directory ?: arg_file ? "files" : "journal");
909dea0c 2230 goto finish;
a963990f
LP		 2231 }
2232
e79d0b59
ZJS		 2233 r = journal_access_check_and_warn(j, arg_quiet,
2234 !(arg_journal_type == SD_JOURNAL_CURRENT_USER || arg_user_units));
6fe391c5 2235 if (r < 0)
909dea0c 2236 goto finish;
6fe391c5 2237
a020b3b3 2238 switch (arg_action) {
beec0085 2239
a020b3b3
LP		 2240 case ACTION_NEW_ID128:
2241 case ACTION_SETUP_KEYS:
2242 case ACTION_LIST_CATALOG:
2243 case ACTION_DUMP_CATALOG:
2244 case ACTION_UPDATE_CATALOG:
2245 case ACTION_FLUSH:
2246 case ACTION_SYNC:
2247 case ACTION_ROTATE:
2248 assert_not_reached("Unexpected action.");
2249
2250 case ACTION_PRINT_HEADER:
dca6219e 2251 journal_print_header(j);
909dea0c
LP		 2252 r = 0;
2253 goto finish;
dca6219e 2254
a020b3b3
LP		 2255 case ACTION_VERIFY:
2256 r = verify(j);
2257 goto finish;
2258
2259 case ACTION_DISK_USAGE: {
39883f62 2260 uint64_t bytes = 0;
a1a03e30
LP		 2261 char sbytes[FORMAT_BYTES_MAX];
2262
2263 r = sd_journal_get_usage(j, &bytes);
2264 if (r < 0)
909dea0c 2265 goto finish;
a1a03e30 2266
8da830bc 2267 printf("Archived and active journals take up %s in the file system.\n",
763c7aa2 2268 format_bytes(sbytes, sizeof(sbytes), bytes));
909dea0c 2269 goto finish;
a1a03e30
LP		 2270 }
2271
a020b3b3
LP		 2272 case ACTION_LIST_BOOTS:
2273 r = list_boots(j);
2274 goto finish;
2275
8df64fd0
LP		 2276 case ACTION_ROTATE_AND_VACUUM:
2277
2278 r = rotate();
2279 if (r < 0)
2280 goto finish;
2281
2282 _fallthrough_;
2283
a020b3b3 2284 case ACTION_VACUUM: {
dbd2a83f
LP		 2285 Directory *d;
2286 Iterator i;
2287
2288 HASHMAP_FOREACH(d, j->directories_by_path, i) {
2289 int q;
2290
2291 if (d->is_root)
2292 continue;
2293
e3695e49 2294 q = journal_directory_vacuum(d->path, arg_vacuum_size, arg_vacuum_n_files, arg_vacuum_time, NULL, !arg_quiet);
dbd2a83f 2295 if (q < 0) {
8580d1f7 2296 log_error_errno(q, "Failed to vacuum %s: %m", d->path);
dbd2a83f
LP		 2297 r = q;
2298 }
2299 }
2300
909dea0c 2301 goto finish;
dbd2a83f
LP		 2302 }
2303
69e714f3
LP		 2304 case ACTION_LIST_FIELD_NAMES: {
2305 const char *field;
2306
2307 SD_JOURNAL_FOREACH_FIELD(j, field) {
2308 printf("%s\n", field);
313cefa1 2309 n_shown++;
69e714f3
LP		 2310 }
2311
2312 r = 0;
2313 goto finish;
2314 }
2315
a020b3b3 2316 case ACTION_SHOW:
69e714f3 2317 case ACTION_LIST_FIELDS:
a020b3b3
LP		 2318 break;
2319
2320 default:
2321 assert_not_reached("Unknown action");
f1188074
ZJS		 2322 }
2323
0f1a9a83
JS		 2324 if (arg_boot_offset != 0 &&
2325 sd_journal_has_runtime_files(j) > 0 &&
2326 sd_journal_has_persistent_files(j) == 0) {
493097ee 2327 log_info("Specifying boot ID or boot offset has no effect, no persistent journal was found.");
0f1a9a83
JS		 2328 r = 0;
2329 goto finish;
2330 }
a331b5e6
JJ		 2331 /* add_boot() must be called first!
2332 * It may need to seek the journal to find parent boot IDs. */
2333 r = add_boot(j);
a963990f 2334 if (r < 0)
909dea0c 2335 goto finish;
a963990f 2336
99271804
ZJS		 2337 r = add_dmesg(j);
2338 if (r < 0)
909dea0c 2339 goto finish;
99271804 2340
b9e40524 2341 r = add_units(j);
ea18a4b5 2342 if (r < 0) {
da927ba9 2343 log_error_errno(r, "Failed to add filter for units: %m");
909dea0c 2344 goto finish;
ea18a4b5 2345 }
c3f60ec5 2346
73083640
HH		 2347 r = add_syslog_identifier(j);
2348 if (r < 0) {
da927ba9 2349 log_error_errno(r, "Failed to add filter for syslog identifiers: %m");
909dea0c 2350 goto finish;
73083640
HH		 2351 }
2352
cd34b3c6 2353 r = add_priorities(j);
b56d608e 2354 if (r < 0)
909dea0c 2355 goto finish;
a963990f 2356
cd34b3c6 2357 r = add_matches(j, argv + optind);
b56d608e 2358 if (r < 0)
909dea0c 2359 goto finish;
941e990d 2360
f1d34068 2361 if (DEBUG_LOGGING) {
4ad16808
ZJS		 2362 _cleanup_free_ char *filter;
2363
2364 filter = journal_make_match_string(j);
b56d608e
LP		 2365 if (!filter)
2366 return log_oom();
2367
4ad16808
ZJS		 2368 log_debug("Journal filter: %s", filter);
2369 }
67e04a48 2370
69e714f3 2371 if (arg_action == ACTION_LIST_FIELDS) {
15119c16
LP		 2372 const void *data;
2373 size_t size;
2374
69e714f3
LP		 2375 assert(arg_field);
2376
21ae4593
ZJS		 2377 r = sd_journal_set_data_threshold(j, 0);
2378 if (r < 0) {
b56d608e 2379 log_error_errno(r, "Failed to unset data size threshold: %m");
909dea0c 2380 goto finish;
21ae4593
ZJS		 2381 }
2382
15119c16
LP		 2383 r = sd_journal_query_unique(j, arg_field);
2384 if (r < 0) {
da927ba9 2385 log_error_errno(r, "Failed to query unique data objects: %m");
909dea0c 2386 goto finish;
15119c16
LP		 2387 }
2388
2389 SD_JOURNAL_FOREACH_UNIQUE(j, data, size) {
2390 const void *eq;
2391
67e04a48 2392 if (arg_lines >= 0 && n_shown >= arg_lines)
fd6e8875
LP		 2393 break;
2394
15119c16
LP		 2395 eq = memchr(data, '=', size);
2396 if (eq)
2397 printf("%.*s\n", (int) (size - ((const uint8_t*) eq - (const uint8_t*) data + 1)), (const char*) eq + 1);
2398 else
2399 printf("%.*s\n", (int) size, (const char*) data);
fd6e8875 2400
313cefa1 2401 n_shown++;
15119c16
LP		 2402 }
2403
909dea0c
LP		 2404 r = 0;
2405 goto finish;
15119c16
LP		 2406 }
2407
8d98da3f
ZJS		 2408 /* Opening the fd now means the first sd_journal_wait() will actually wait */
2409 if (arg_follow) {
2a1e0f22
LP		 2410 poll_fd = sd_journal_get_fd(j);
2411 if (poll_fd == -EMFILE) {
2412 log_warning_errno(poll_fd, "Insufficent watch descriptors available. Reverting to -n.");
321ed364 2413 arg_follow = false;
2a1e0f22
LP		 2414 } else if (poll_fd == -EMEDIUMTYPE) {
2415 log_error_errno(poll_fd, "The --follow switch is not supported in conjunction with reading from STDIN.");
5d1ce257 2416 goto finish;
2a1e0f22
LP		 2417 } else if (poll_fd < 0) {
2418 log_error_errno(poll_fd, "Failed to get journal fd: %m");
909dea0c 2419 goto finish;
b56d608e 2420 }
8d98da3f
ZJS		 2421 }
2422
248fc619 2423 if (arg_cursor || arg_after_cursor) {
eacbb4d3 2424 r = sd_journal_seek_cursor(j, arg_cursor ?: arg_after_cursor);
08984293 2425 if (r < 0) {
da927ba9 2426 log_error_errno(r, "Failed to seek to cursor: %m");
909dea0c 2427 goto finish;
08984293 2428 }
909dea0c 2429
d89d6c86 2430 if (!arg_reverse)
248fc619 2431 r = sd_journal_next_skip(j, 1 + !!arg_after_cursor);
d89d6c86 2432 else
248fc619
ZJS		 2433 r = sd_journal_previous_skip(j, 1 + !!arg_after_cursor);
2434
8ee8e536 2435 if (arg_after_cursor && r < 2) {
248fc619 2436 /* We couldn't find the next entry after the cursor. */
8ee8e536
WD		 2437 if (arg_follow)
2438 need_seek = true;
2439 else
2440 arg_lines = 0;
2441 }
08984293 2442
d89d6c86 2443 } else if (arg_since_set && !arg_reverse) {
cfbc22ab 2444 r = sd_journal_seek_realtime_usec(j, arg_since);
8f14c832 2445 if (r < 0) {
da927ba9 2446 log_error_errno(r, "Failed to seek to date: %m");
909dea0c 2447 goto finish;
8f14c832 2448 }
8f14c832
LP		 2449 r = sd_journal_next(j);
2450
d89d6c86
LN		 2451 } else if (arg_until_set && arg_reverse) {
2452 r = sd_journal_seek_realtime_usec(j, arg_until);
2453 if (r < 0) {
da927ba9 2454 log_error_errno(r, "Failed to seek to date: %m");
909dea0c 2455 goto finish;
d89d6c86
LN		 2456 }
2457 r = sd_journal_previous(j);
2458
67e04a48 2459 } else if (arg_lines >= 0) {
2100675e
LP		 2460 r = sd_journal_seek_tail(j);
2461 if (r < 0) {
da927ba9 2462 log_error_errno(r, "Failed to seek to tail: %m");
909dea0c 2463 goto finish;
2100675e
LP		 2464 }
2465
2466 r = sd_journal_previous_skip(j, arg_lines);
8f14c832 2467
d89d6c86
LN		 2468 } else if (arg_reverse) {
2469 r = sd_journal_seek_tail(j);
2470 if (r < 0) {
da927ba9 2471 log_error_errno(r, "Failed to seek to tail: %m");
909dea0c 2472 goto finish;
d89d6c86
LN		 2473 }
2474
2475 r = sd_journal_previous(j);
2476
2100675e
LP		 2477 } else {
2478 r = sd_journal_seek_head(j);
2479 if (r < 0) {
da927ba9 2480 log_error_errno(r, "Failed to seek to head: %m");
909dea0c 2481 goto finish;
2100675e 2482 }
6f003b43
LP		 2483
2484 r = sd_journal_next(j);
2485 }
2486
2487 if (r < 0) {
da927ba9 2488 log_error_errno(r, "Failed to iterate through journal: %m");
909dea0c 2489 goto finish;
50f20cfd 2490 }
5f42943c
LK		 2491 if (r == 0)
2492 need_seek = true;
87d2c1ff 2493
faf5077f 2494 if (!arg_follow)
0221d68a 2495 (void) pager_open(arg_pager_flags);
0d43c694 2496
5f42943c 2497 if (!arg_quiet && (arg_lines != 0 || arg_follow)) {
cfbc22ab
LP		 2498 usec_t start, end;
2499 char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX];
2500
2501 r = sd_journal_get_cutoff_realtime_usec(j, &start, &end);
2502 if (r < 0) {
da927ba9 2503 log_error_errno(r, "Failed to get cutoff: %m");
cfbc22ab
LP		 2504 goto finish;
2505 }
2506
2507 if (r > 0) {
2508 if (arg_follow)
9048b11f 2509 printf("-- Logs begin at %s. --\n",
5ab99e07 2510 format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start));
cfbc22ab 2511 else
9048b11f 2512 printf("-- Logs begin at %s, end at %s. --\n",
5ab99e07
LP		 2513 format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start),
2514 format_timestamp_maybe_utc(end_buf, sizeof(end_buf), end));
cfbc22ab
LP		 2515 }
2516 }
2517
50f20cfd 2518 for (;;) {
67e04a48 2519 while (arg_lines < 0 || n_shown < arg_lines || (arg_follow && !first_line)) {
cfbc22ab 2520 int flags;
b4766d5f 2521 size_t highlight[2] = {};
cfbc22ab 2522
6f003b43 2523 if (need_seek) {
99613ec5 2524 if (!arg_reverse)
d89d6c86
LN		 2525 r = sd_journal_next(j);
2526 else
2527 r = sd_journal_previous(j);
6f003b43 2528 if (r < 0) {
da927ba9 2529 log_error_errno(r, "Failed to iterate through journal: %m");
6f003b43
LP		 2530 goto finish;
2531 }
a72b6353
ZJS		 2532 if (r == 0)
2533 break;
0d43c694
LP		 2534 }
2535
d89d6c86 2536 if (arg_until_set && !arg_reverse) {
cfbc22ab
LP		 2537 usec_t usec;
2538
2539 r = sd_journal_get_realtime_usec(j, &usec);
2540 if (r < 0) {
da927ba9 2541 log_error_errno(r, "Failed to determine timestamp: %m");
cfbc22ab
LP		 2542 goto finish;
2543 }
3ba09ee8
PF		 2544 if (usec > arg_until)
2545 goto finish;
cfbc22ab
LP		 2546 }
2547
d89d6c86
LN		 2548 if (arg_since_set && arg_reverse) {
2549 usec_t usec;
2550
2551 r = sd_journal_get_realtime_usec(j, &usec);
2552 if (r < 0) {
da927ba9 2553 log_error_errno(r, "Failed to determine timestamp: %m");
d89d6c86
LN		 2554 goto finish;
2555 }
2556 if (usec < arg_since)
2557 goto finish;
2558 }
2559
4bed2485 2560 if (!arg_merge && !arg_quiet) {
cd931c0a 2561 sd_id128_t boot_id;
14a65d65 2562
cd931c0a
LP		 2563 r = sd_journal_get_monotonic_usec(j, NULL, &boot_id);
2564 if (r >= 0) {
2565 if (previous_boot_id_valid &&
2566 !sd_id128_equal(boot_id, previous_boot_id))
0b5a519c 2567 printf("%s-- Reboot --%s\n",
1fc464f6 2568 ansi_highlight(), ansi_normal());
cd931c0a
LP		 2569
2570 previous_boot_id = boot_id;
2571 previous_boot_id_valid = true;
2572 }
14a65d65
LP		 2573 }
2574
6becf48c 2575#if HAVE_PCRE2
61c5f8a1 2576 if (arg_compiled_pattern) {
6becf48c
ZJS		 2577 _cleanup_(pcre2_match_data_freep) pcre2_match_data *md = NULL;
2578 const void *message;
2579 size_t len;
b4766d5f 2580 PCRE2_SIZE *ovec;
6becf48c
ZJS		 2581
2582 md = pcre2_match_data_create(1, NULL);
2583 if (!md)
2584 return log_oom();
2585
2586 r = sd_journal_get_data(j, "MESSAGE", &message, &len);
2587 if (r < 0) {
2588 if (r == -ENOENT) {
2589 need_seek = true;
2590 continue;
2591 }
2592
2593 log_error_errno(r, "Failed to get MESSAGE field: %m");
2594 goto finish;
2595 }
2596
2597 assert_se(message = startswith(message, "MESSAGE="));
2598
61c5f8a1 2599 r = pcre2_match(arg_compiled_pattern,
6becf48c
ZJS		 2600 message,
2601 len - strlen("MESSAGE="),
2602 0, /* start at offset 0 in the subject */
2603 0, /* default options */
2604 md,
2605 NULL);
2606 if (r == PCRE2_ERROR_NOMATCH) {
2607 need_seek = true;
2608 continue;
2609 }
2610 if (r < 0) {
2611 unsigned char buf[LINE_MAX];
2612 int r2;
2613
2614 r2 = pcre2_get_error_message(r, buf, sizeof buf);
2615 log_error("Pattern matching failed: %s",
2616 r2 < 0 ? "unknown error" : (char*) buf);
2617 r = -EINVAL;
2618 goto finish;
2619 }
b4766d5f
ZJS		 2620
2621 ovec = pcre2_get_ovector_pointer(md);
2622 highlight[0] = ovec[0];
2623 highlight[1] = ovec[1];
6becf48c
ZJS		 2624 }
2625#endif
2626
cfbc22ab 2627 flags =
cd4b13e0 2628 arg_all * OUTPUT_SHOW_ALL |
2b8f6883 2629 arg_full * OUTPUT_FULL_WIDTH |
40c9fe4c 2630 colors_enabled() * OUTPUT_COLOR |
9fd29044 2631 arg_catalog * OUTPUT_CATALOG |
991e274b
LP		 2632 arg_utc * OUTPUT_UTC |
2633 arg_no_hostname * OUTPUT_NO_HOSTNAME;
cfbc22ab 2634
9b972c9a
ZJS		 2635 r = show_journal_entry(stdout, j, arg_output, 0, flags,
2636 arg_output_fields, highlight, &ellipsized);
a72b6353
ZJS		 2637 need_seek = true;
2638 if (r == -EADDRNOTAVAIL)
2639 break;
2a1e0f22 2640 else if (r < 0)
72f59706 2641 goto finish;
6f003b43 2642
cfbc22ab 2643 n_shown++;
ec316d19
PP		 2644
2645 /* If journalctl take a long time to process messages, and during that time journal file
2646 * rotation occurs, a journalctl client will keep those rotated files open until it calls
2647 * sd_journal_process(), which typically happens as a result of calling sd_journal_wait() below
2648 * in the "following" case. By periodically calling sd_journal_process() during the processing
2649 * loop we shrink the window of time a client instance has open file descriptors for rotated
2650 * (deleted) journal files. */
2651 if ((n_shown % PROCESS_INOTIFY_INTERVAL) == 0) {
2652 r = sd_journal_process(j);
2653 if (r < 0) {
2654 log_error_errno(r, "Failed to process inotify events: %m");
2655 goto finish;
2656 }
2657 }
87d2c1ff
LP		 2658 }
2659
248fc619 2660 if (!arg_follow) {
5f42943c
LK		 2661 if (n_shown == 0 && !arg_quiet)
2662 printf("-- No entries --\n");
2663
248fc619
ZJS		 2664 if (arg_show_cursor) {
2665 _cleanup_free_ char *cursor = NULL;
2666
2667 r = sd_journal_get_cursor(j, &cursor);
2668 if (r < 0 && r != -EADDRNOTAVAIL)
da927ba9 2669 log_error_errno(r, "Failed to get cursor: %m");
248fc619
ZJS		 2670 else if (r >= 0)
2671 printf("-- cursor: %s\n", cursor);
2672 }
2673
50f20cfd 2674 break;
248fc619 2675 }
50f20cfd 2676
b1aa5ced 2677 fflush(stdout);
2a1e0f22
LP		 2678
2679 r = wait_for_change(j, poll_fd);
2680 if (r < 0)
50f20cfd 2681 goto finish;
67e04a48
ZJS		 2682
2683 first_line = false;
de190aef 2684 }
87d2c1ff
LP		 2685
2686finish:
b1aa5ced 2687 fflush(stdout);
0d43c694
LP		 2688 pager_close();
2689
a36b8deb
ZJS		 2690 strv_free(arg_file);
2691
d52da205
LP		 2692 strv_free(arg_syslog_identifier);
2693 strv_free(arg_system_units);
2694 strv_free(arg_user_units);
cc25a67e 2695 strv_free(arg_output_fields);
d52da205 2696
0f03c2a4 2697 free(arg_root);
6bae9b2a 2698 free(arg_verify_key);
0f03c2a4 2699
6becf48c 2700#if HAVE_PCRE2
61c5f8a1
ZJS		 2701 if (arg_compiled_pattern)
2702 pcre2_code_free(arg_compiled_pattern);
6becf48c
ZJS		 2703#endif
2704
3fbf9cbb 2705 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
87d2c1ff 2706}
Unnamed repository; edit this file 'description' to name the repository.