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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 | |
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 | |
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 | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <errno.h> | |
23 | #include <fcntl.h> | |
24 | #include <fnmatch.h> | |
25 | #include <getopt.h> | |
26 | #include <linux/fs.h> | |
27 | #include <locale.h> | |
28 | #include <poll.h> | |
29 | #include <signal.h> | |
30 | #include <stddef.h> | |
31 | #include <stdio.h> | |
32 | #include <stdlib.h> | |
33 | #include <string.h> | |
34 | #include <sys/inotify.h> | |
35 | #include <sys/stat.h> | |
36 | #include <unistd.h> | |
37 | ||
38 | #include "sd-bus.h" | |
39 | #include "sd-journal.h" | |
40 | ||
41 | #include "acl-util.h" | |
42 | #include "bus-error.h" | |
43 | #include "bus-util.h" | |
44 | #include "catalog.h" | |
45 | #include "fd-util.h" | |
46 | #include "fileio.h" | |
47 | #include "fsprg.h" | |
48 | #include "hostname-util.h" | |
49 | #include "journal-def.h" | |
50 | #include "journal-internal.h" | |
51 | #include "journal-qrcode.h" | |
52 | #include "journal-vacuum.h" | |
53 | #include "journal-verify.h" | |
54 | #include "log.h" | |
55 | #include "logs-show.h" | |
56 | #include "mkdir.h" | |
57 | #include "pager.h" | |
58 | #include "path-util.h" | |
59 | #include "set.h" | |
60 | #include "sigbus.h" | |
61 | #include "strv.h" | |
62 | #include "terminal-util.h" | |
63 | #include "unit-name.h" | |
64 | ||
65 | #define DEFAULT_FSS_INTERVAL_USEC (15*USEC_PER_MINUTE) | |
66 | ||
67 | enum { | |
68 | /* Special values for arg_lines */ | |
69 | ARG_LINES_DEFAULT = -2, | |
70 | ARG_LINES_ALL = -1, | |
71 | }; | |
72 | ||
73 | static OutputMode arg_output = OUTPUT_SHORT; | |
74 | static bool arg_utc = false; | |
75 | static bool arg_pager_end = false; | |
76 | static bool arg_follow = false; | |
77 | static bool arg_full = true; | |
78 | static bool arg_all = false; | |
79 | static bool arg_no_pager = false; | |
80 | static int arg_lines = ARG_LINES_DEFAULT; | |
81 | static bool arg_no_tail = false; | |
82 | static bool arg_quiet = false; | |
83 | static bool arg_merge = false; | |
84 | static bool arg_boot = false; | |
85 | static sd_id128_t arg_boot_id = {}; | |
86 | static int arg_boot_offset = 0; | |
87 | static bool arg_dmesg = false; | |
88 | static const char *arg_cursor = NULL; | |
89 | static const char *arg_after_cursor = NULL; | |
90 | static bool arg_show_cursor = false; | |
91 | static const char *arg_directory = NULL; | |
92 | static char **arg_file = NULL; | |
93 | static int arg_priorities = 0xFF; | |
94 | static const char *arg_verify_key = NULL; | |
95 | #ifdef HAVE_GCRYPT | |
96 | static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC; | |
97 | static bool arg_force = false; | |
98 | #endif | |
99 | static usec_t arg_since, arg_until; | |
100 | static bool arg_since_set = false, arg_until_set = false; | |
101 | static char **arg_syslog_identifier = NULL; | |
102 | static char **arg_system_units = NULL; | |
103 | static char **arg_user_units = NULL; | |
104 | static const char *arg_field = NULL; | |
105 | static bool arg_catalog = false; | |
106 | static bool arg_reverse = false; | |
107 | static int arg_journal_type = 0; | |
108 | static char *arg_root = NULL; | |
109 | static const char *arg_machine = NULL; | |
110 | static uint64_t arg_vacuum_size = 0; | |
111 | static uint64_t arg_vacuum_n_files = 0; | |
112 | static usec_t arg_vacuum_time = 0; | |
113 | ||
114 | static enum { | |
115 | ACTION_SHOW, | |
116 | ACTION_NEW_ID128, | |
117 | ACTION_PRINT_HEADER, | |
118 | ACTION_SETUP_KEYS, | |
119 | ACTION_VERIFY, | |
120 | ACTION_DISK_USAGE, | |
121 | ACTION_LIST_CATALOG, | |
122 | ACTION_DUMP_CATALOG, | |
123 | ACTION_UPDATE_CATALOG, | |
124 | ACTION_LIST_BOOTS, | |
125 | ACTION_FLUSH, | |
126 | ACTION_ROTATE, | |
127 | ACTION_VACUUM, | |
128 | } arg_action = ACTION_SHOW; | |
129 | ||
130 | typedef struct BootId { | |
131 | sd_id128_t id; | |
132 | uint64_t first; | |
133 | uint64_t last; | |
134 | LIST_FIELDS(struct BootId, boot_list); | |
135 | } BootId; | |
136 | ||
137 | static void pager_open_if_enabled(void) { | |
138 | ||
139 | if (arg_no_pager) | |
140 | return; | |
141 | ||
142 | pager_open(arg_pager_end); | |
143 | } | |
144 | ||
145 | static char *format_timestamp_maybe_utc(char *buf, size_t l, usec_t t) { | |
146 | ||
147 | if (arg_utc) | |
148 | return format_timestamp_utc(buf, l, t); | |
149 | ||
150 | return format_timestamp(buf, l, t); | |
151 | } | |
152 | ||
153 | static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset) { | |
154 | sd_id128_t id = SD_ID128_NULL; | |
155 | int off = 0, r; | |
156 | ||
157 | if (strlen(x) >= 32) { | |
158 | char *t; | |
159 | ||
160 | t = strndupa(x, 32); | |
161 | r = sd_id128_from_string(t, &id); | |
162 | if (r >= 0) | |
163 | x += 32; | |
164 | ||
165 | if (*x != '-' && *x != '+' && *x != 0) | |
166 | return -EINVAL; | |
167 | ||
168 | if (*x != 0) { | |
169 | r = safe_atoi(x, &off); | |
170 | if (r < 0) | |
171 | return r; | |
172 | } | |
173 | } else { | |
174 | r = safe_atoi(x, &off); | |
175 | if (r < 0) | |
176 | return r; | |
177 | } | |
178 | ||
179 | if (boot_id) | |
180 | *boot_id = id; | |
181 | ||
182 | if (offset) | |
183 | *offset = off; | |
184 | ||
185 | return 0; | |
186 | } | |
187 | ||
188 | static void help(void) { | |
189 | ||
190 | pager_open_if_enabled(); | |
191 | ||
192 | printf("%s [OPTIONS...] [MATCHES...]\n\n" | |
193 | "Query the journal.\n\n" | |
194 | "Flags:\n" | |
195 | " --system Show the system journal\n" | |
196 | " --user Show the user journal for the current user\n" | |
197 | " -M --machine=CONTAINER Operate on local container\n" | |
198 | " -S --since=DATE Show entries not older than the specified date\n" | |
199 | " -U --until=DATE Show entries not newer than the specified date\n" | |
200 | " -c --cursor=CURSOR Show entries starting at the specified cursor\n" | |
201 | " --after-cursor=CURSOR Show entries after the specified cursor\n" | |
202 | " --show-cursor Print the cursor after all the entries\n" | |
203 | " -b --boot[=ID] Show current boot or the specified boot\n" | |
204 | " --list-boots Show terse information about recorded boots\n" | |
205 | " -k --dmesg Show kernel message log from the current boot\n" | |
206 | " -u --unit=UNIT Show logs from the specified unit\n" | |
207 | " --user-unit=UNIT Show logs from the specified user unit\n" | |
208 | " -t --identifier=STRING Show entries with the specified syslog identifier\n" | |
209 | " -p --priority=RANGE Show entries with the specified priority\n" | |
210 | " -e --pager-end Immediately jump to the end in the pager\n" | |
211 | " -f --follow Follow the journal\n" | |
212 | " -n --lines[=INTEGER] Number of journal entries to show\n" | |
213 | " --no-tail Show all lines, even in follow mode\n" | |
214 | " -r --reverse Show the newest entries first\n" | |
215 | " -o --output=STRING Change journal output mode (short, short-iso,\n" | |
216 | " short-precise, short-monotonic, verbose,\n" | |
217 | " export, json, json-pretty, json-sse, cat)\n" | |
218 | " --utc Express time in Coordinated Universal Time (UTC)\n" | |
219 | " -x --catalog Add message explanations where available\n" | |
220 | " --no-full Ellipsize fields\n" | |
221 | " -a --all Show all fields, including long and unprintable\n" | |
222 | " -q --quiet Do not show info messages and privilege warning\n" | |
223 | " --no-pager Do not pipe output into a pager\n" | |
224 | " -m --merge Show entries from all available journals\n" | |
225 | " -D --directory=PATH Show journal files from directory\n" | |
226 | " --file=PATH Show journal file\n" | |
227 | " --root=ROOT Operate on catalog files underneath the root ROOT\n" | |
228 | #ifdef HAVE_GCRYPT | |
229 | " --interval=TIME Time interval for changing the FSS sealing key\n" | |
230 | " --verify-key=KEY Specify FSS verification key\n" | |
231 | " --force Override of the FSS key pair with --setup-keys\n" | |
232 | #endif | |
233 | "\nCommands:\n" | |
234 | " -h --help Show this help text\n" | |
235 | " --version Show package version\n" | |
236 | " -F --field=FIELD List all values that a specified field takes\n" | |
237 | " --new-id128 Generate a new 128-bit ID\n" | |
238 | " --disk-usage Show total disk usage of all journal files\n" | |
239 | " --vacuum-size=BYTES Reduce disk usage below specified size\n" | |
240 | " --vacuum-files=INT Leave only the specified number of journal files\n" | |
241 | " --vacuum-time=TIME Remove journal files older than specified time\n" | |
242 | " --flush Flush all journal data from /run into /var\n" | |
243 | " --rotate Request immediate rotation of the journal files\n" | |
244 | " --header Show journal header information\n" | |
245 | " --list-catalog Show all message IDs in the catalog\n" | |
246 | " --dump-catalog Show entries in the message catalog\n" | |
247 | " --update-catalog Update the message catalog database\n" | |
248 | #ifdef HAVE_GCRYPT | |
249 | " --setup-keys Generate a new FSS key pair\n" | |
250 | " --verify Verify journal file consistency\n" | |
251 | #endif | |
252 | , program_invocation_short_name); | |
253 | } | |
254 | ||
255 | static int parse_argv(int argc, char *argv[]) { | |
256 | ||
257 | enum { | |
258 | ARG_VERSION = 0x100, | |
259 | ARG_NO_PAGER, | |
260 | ARG_NO_FULL, | |
261 | ARG_NO_TAIL, | |
262 | ARG_NEW_ID128, | |
263 | ARG_LIST_BOOTS, | |
264 | ARG_USER, | |
265 | ARG_SYSTEM, | |
266 | ARG_ROOT, | |
267 | ARG_HEADER, | |
268 | ARG_SETUP_KEYS, | |
269 | ARG_FILE, | |
270 | ARG_INTERVAL, | |
271 | ARG_VERIFY, | |
272 | ARG_VERIFY_KEY, | |
273 | ARG_DISK_USAGE, | |
274 | ARG_AFTER_CURSOR, | |
275 | ARG_SHOW_CURSOR, | |
276 | ARG_USER_UNIT, | |
277 | ARG_LIST_CATALOG, | |
278 | ARG_DUMP_CATALOG, | |
279 | ARG_UPDATE_CATALOG, | |
280 | ARG_FORCE, | |
281 | ARG_UTC, | |
282 | ARG_FLUSH, | |
283 | ARG_ROTATE, | |
284 | ARG_VACUUM_SIZE, | |
285 | ARG_VACUUM_FILES, | |
286 | ARG_VACUUM_TIME, | |
287 | }; | |
288 | ||
289 | static const struct option options[] = { | |
290 | { "help", no_argument, NULL, 'h' }, | |
291 | { "version" , no_argument, NULL, ARG_VERSION }, | |
292 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
293 | { "pager-end", no_argument, NULL, 'e' }, | |
294 | { "follow", no_argument, NULL, 'f' }, | |
295 | { "force", no_argument, NULL, ARG_FORCE }, | |
296 | { "output", required_argument, NULL, 'o' }, | |
297 | { "all", no_argument, NULL, 'a' }, | |
298 | { "full", no_argument, NULL, 'l' }, | |
299 | { "no-full", no_argument, NULL, ARG_NO_FULL }, | |
300 | { "lines", optional_argument, NULL, 'n' }, | |
301 | { "no-tail", no_argument, NULL, ARG_NO_TAIL }, | |
302 | { "new-id128", no_argument, NULL, ARG_NEW_ID128 }, | |
303 | { "quiet", no_argument, NULL, 'q' }, | |
304 | { "merge", no_argument, NULL, 'm' }, | |
305 | { "boot", optional_argument, NULL, 'b' }, | |
306 | { "list-boots", no_argument, NULL, ARG_LIST_BOOTS }, | |
307 | { "this-boot", optional_argument, NULL, 'b' }, /* deprecated */ | |
308 | { "dmesg", no_argument, NULL, 'k' }, | |
309 | { "system", no_argument, NULL, ARG_SYSTEM }, | |
310 | { "user", no_argument, NULL, ARG_USER }, | |
311 | { "directory", required_argument, NULL, 'D' }, | |
312 | { "file", required_argument, NULL, ARG_FILE }, | |
313 | { "root", required_argument, NULL, ARG_ROOT }, | |
314 | { "header", no_argument, NULL, ARG_HEADER }, | |
315 | { "identifier", required_argument, NULL, 't' }, | |
316 | { "priority", required_argument, NULL, 'p' }, | |
317 | { "setup-keys", no_argument, NULL, ARG_SETUP_KEYS }, | |
318 | { "interval", required_argument, NULL, ARG_INTERVAL }, | |
319 | { "verify", no_argument, NULL, ARG_VERIFY }, | |
320 | { "verify-key", required_argument, NULL, ARG_VERIFY_KEY }, | |
321 | { "disk-usage", no_argument, NULL, ARG_DISK_USAGE }, | |
322 | { "cursor", required_argument, NULL, 'c' }, | |
323 | { "after-cursor", required_argument, NULL, ARG_AFTER_CURSOR }, | |
324 | { "show-cursor", no_argument, NULL, ARG_SHOW_CURSOR }, | |
325 | { "since", required_argument, NULL, 'S' }, | |
326 | { "until", required_argument, NULL, 'U' }, | |
327 | { "unit", required_argument, NULL, 'u' }, | |
328 | { "user-unit", required_argument, NULL, ARG_USER_UNIT }, | |
329 | { "field", required_argument, NULL, 'F' }, | |
330 | { "catalog", no_argument, NULL, 'x' }, | |
331 | { "list-catalog", no_argument, NULL, ARG_LIST_CATALOG }, | |
332 | { "dump-catalog", no_argument, NULL, ARG_DUMP_CATALOG }, | |
333 | { "update-catalog", no_argument, NULL, ARG_UPDATE_CATALOG }, | |
334 | { "reverse", no_argument, NULL, 'r' }, | |
335 | { "machine", required_argument, NULL, 'M' }, | |
336 | { "utc", no_argument, NULL, ARG_UTC }, | |
337 | { "flush", no_argument, NULL, ARG_FLUSH }, | |
338 | { "rotate", no_argument, NULL, ARG_ROTATE }, | |
339 | { "vacuum-size", required_argument, NULL, ARG_VACUUM_SIZE }, | |
340 | { "vacuum-files", required_argument, NULL, ARG_VACUUM_FILES }, | |
341 | { "vacuum-time", required_argument, NULL, ARG_VACUUM_TIME }, | |
342 | {} | |
343 | }; | |
344 | ||
345 | int c, r; | |
346 | ||
347 | assert(argc >= 0); | |
348 | assert(argv); | |
349 | ||
350 | while ((c = getopt_long(argc, argv, "hefo:aln::qmb::kD:p:c:S:U:t:u:F:xrM:", options, NULL)) >= 0) | |
351 | ||
352 | switch (c) { | |
353 | ||
354 | case 'h': | |
355 | help(); | |
356 | return 0; | |
357 | ||
358 | case ARG_VERSION: | |
359 | return version(); | |
360 | ||
361 | case ARG_NO_PAGER: | |
362 | arg_no_pager = true; | |
363 | break; | |
364 | ||
365 | case 'e': | |
366 | arg_pager_end = true; | |
367 | ||
368 | if (arg_lines == ARG_LINES_DEFAULT) | |
369 | arg_lines = 1000; | |
370 | ||
371 | break; | |
372 | ||
373 | case 'f': | |
374 | arg_follow = true; | |
375 | break; | |
376 | ||
377 | case 'o': | |
378 | arg_output = output_mode_from_string(optarg); | |
379 | if (arg_output < 0) { | |
380 | log_error("Unknown output format '%s'.", optarg); | |
381 | return -EINVAL; | |
382 | } | |
383 | ||
384 | if (arg_output == OUTPUT_EXPORT || | |
385 | arg_output == OUTPUT_JSON || | |
386 | arg_output == OUTPUT_JSON_PRETTY || | |
387 | arg_output == OUTPUT_JSON_SSE || | |
388 | arg_output == OUTPUT_CAT) | |
389 | arg_quiet = true; | |
390 | ||
391 | break; | |
392 | ||
393 | case 'l': | |
394 | arg_full = true; | |
395 | break; | |
396 | ||
397 | case ARG_NO_FULL: | |
398 | arg_full = false; | |
399 | break; | |
400 | ||
401 | case 'a': | |
402 | arg_all = true; | |
403 | break; | |
404 | ||
405 | case 'n': | |
406 | if (optarg) { | |
407 | if (streq(optarg, "all")) | |
408 | arg_lines = ARG_LINES_ALL; | |
409 | else { | |
410 | r = safe_atoi(optarg, &arg_lines); | |
411 | if (r < 0 || arg_lines < 0) { | |
412 | log_error("Failed to parse lines '%s'", optarg); | |
413 | return -EINVAL; | |
414 | } | |
415 | } | |
416 | } else { | |
417 | arg_lines = 10; | |
418 | ||
419 | /* Hmm, no argument? Maybe the next | |
420 | * word on the command line is | |
421 | * supposed to be the argument? Let's | |
422 | * see if there is one, and is | |
423 | * parsable. */ | |
424 | if (optind < argc) { | |
425 | int n; | |
426 | if (streq(argv[optind], "all")) { | |
427 | arg_lines = ARG_LINES_ALL; | |
428 | optind++; | |
429 | } else if (safe_atoi(argv[optind], &n) >= 0 && n >= 0) { | |
430 | arg_lines = n; | |
431 | optind++; | |
432 | } | |
433 | } | |
434 | } | |
435 | ||
436 | break; | |
437 | ||
438 | case ARG_NO_TAIL: | |
439 | arg_no_tail = true; | |
440 | break; | |
441 | ||
442 | case ARG_NEW_ID128: | |
443 | arg_action = ACTION_NEW_ID128; | |
444 | break; | |
445 | ||
446 | case 'q': | |
447 | arg_quiet = true; | |
448 | break; | |
449 | ||
450 | case 'm': | |
451 | arg_merge = true; | |
452 | break; | |
453 | ||
454 | case 'b': | |
455 | arg_boot = true; | |
456 | ||
457 | if (optarg) { | |
458 | r = parse_boot_descriptor(optarg, &arg_boot_id, &arg_boot_offset); | |
459 | if (r < 0) { | |
460 | log_error("Failed to parse boot descriptor '%s'", optarg); | |
461 | return -EINVAL; | |
462 | } | |
463 | } else { | |
464 | ||
465 | /* Hmm, no argument? Maybe the next | |
466 | * word on the command line is | |
467 | * supposed to be the argument? Let's | |
468 | * see if there is one and is parsable | |
469 | * as a boot descriptor... */ | |
470 | ||
471 | if (optind < argc && | |
472 | parse_boot_descriptor(argv[optind], &arg_boot_id, &arg_boot_offset) >= 0) | |
473 | optind++; | |
474 | } | |
475 | ||
476 | break; | |
477 | ||
478 | case ARG_LIST_BOOTS: | |
479 | arg_action = ACTION_LIST_BOOTS; | |
480 | break; | |
481 | ||
482 | case 'k': | |
483 | arg_boot = arg_dmesg = true; | |
484 | break; | |
485 | ||
486 | case ARG_SYSTEM: | |
487 | arg_journal_type |= SD_JOURNAL_SYSTEM; | |
488 | break; | |
489 | ||
490 | case ARG_USER: | |
491 | arg_journal_type |= SD_JOURNAL_CURRENT_USER; | |
492 | break; | |
493 | ||
494 | case 'M': | |
495 | arg_machine = optarg; | |
496 | break; | |
497 | ||
498 | case 'D': | |
499 | arg_directory = optarg; | |
500 | break; | |
501 | ||
502 | case ARG_FILE: | |
503 | r = glob_extend(&arg_file, optarg); | |
504 | if (r < 0) | |
505 | return log_error_errno(r, "Failed to add paths: %m"); | |
506 | break; | |
507 | ||
508 | case ARG_ROOT: | |
509 | r = parse_path_argument_and_warn(optarg, true, &arg_root); | |
510 | if (r < 0) | |
511 | return r; | |
512 | break; | |
513 | ||
514 | case 'c': | |
515 | arg_cursor = optarg; | |
516 | break; | |
517 | ||
518 | case ARG_AFTER_CURSOR: | |
519 | arg_after_cursor = optarg; | |
520 | break; | |
521 | ||
522 | case ARG_SHOW_CURSOR: | |
523 | arg_show_cursor = true; | |
524 | break; | |
525 | ||
526 | case ARG_HEADER: | |
527 | arg_action = ACTION_PRINT_HEADER; | |
528 | break; | |
529 | ||
530 | case ARG_VERIFY: | |
531 | arg_action = ACTION_VERIFY; | |
532 | break; | |
533 | ||
534 | case ARG_DISK_USAGE: | |
535 | arg_action = ACTION_DISK_USAGE; | |
536 | break; | |
537 | ||
538 | case ARG_VACUUM_SIZE: | |
539 | r = parse_size(optarg, 1024, &arg_vacuum_size); | |
540 | if (r < 0) { | |
541 | log_error("Failed to parse vacuum size: %s", optarg); | |
542 | return r; | |
543 | } | |
544 | ||
545 | arg_action = ACTION_VACUUM; | |
546 | break; | |
547 | ||
548 | case ARG_VACUUM_FILES: | |
549 | r = safe_atou64(optarg, &arg_vacuum_n_files); | |
550 | if (r < 0) { | |
551 | log_error("Failed to parse vacuum files: %s", optarg); | |
552 | return r; | |
553 | } | |
554 | ||
555 | arg_action = ACTION_VACUUM; | |
556 | break; | |
557 | ||
558 | case ARG_VACUUM_TIME: | |
559 | r = parse_sec(optarg, &arg_vacuum_time); | |
560 | if (r < 0) { | |
561 | log_error("Failed to parse vacuum time: %s", optarg); | |
562 | return r; | |
563 | } | |
564 | ||
565 | arg_action = ACTION_VACUUM; | |
566 | break; | |
567 | ||
568 | #ifdef HAVE_GCRYPT | |
569 | case ARG_FORCE: | |
570 | arg_force = true; | |
571 | break; | |
572 | ||
573 | case ARG_SETUP_KEYS: | |
574 | arg_action = ACTION_SETUP_KEYS; | |
575 | break; | |
576 | ||
577 | ||
578 | case ARG_VERIFY_KEY: | |
579 | arg_action = ACTION_VERIFY; | |
580 | arg_verify_key = optarg; | |
581 | arg_merge = false; | |
582 | break; | |
583 | ||
584 | case ARG_INTERVAL: | |
585 | r = parse_sec(optarg, &arg_interval); | |
586 | if (r < 0 || arg_interval <= 0) { | |
587 | log_error("Failed to parse sealing key change interval: %s", optarg); | |
588 | return -EINVAL; | |
589 | } | |
590 | break; | |
591 | #else | |
592 | case ARG_SETUP_KEYS: | |
593 | case ARG_VERIFY_KEY: | |
594 | case ARG_INTERVAL: | |
595 | case ARG_FORCE: | |
596 | log_error("Forward-secure sealing not available."); | |
597 | return -EOPNOTSUPP; | |
598 | #endif | |
599 | ||
600 | case 'p': { | |
601 | const char *dots; | |
602 | ||
603 | dots = strstr(optarg, ".."); | |
604 | if (dots) { | |
605 | char *a; | |
606 | int from, to, i; | |
607 | ||
608 | /* a range */ | |
609 | a = strndup(optarg, dots - optarg); | |
610 | if (!a) | |
611 | return log_oom(); | |
612 | ||
613 | from = log_level_from_string(a); | |
614 | to = log_level_from_string(dots + 2); | |
615 | free(a); | |
616 | ||
617 | if (from < 0 || to < 0) { | |
618 | log_error("Failed to parse log level range %s", optarg); | |
619 | return -EINVAL; | |
620 | } | |
621 | ||
622 | arg_priorities = 0; | |
623 | ||
624 | if (from < to) { | |
625 | for (i = from; i <= to; i++) | |
626 | arg_priorities |= 1 << i; | |
627 | } else { | |
628 | for (i = to; i <= from; i++) | |
629 | arg_priorities |= 1 << i; | |
630 | } | |
631 | ||
632 | } else { | |
633 | int p, i; | |
634 | ||
635 | p = log_level_from_string(optarg); | |
636 | if (p < 0) { | |
637 | log_error("Unknown log level %s", optarg); | |
638 | return -EINVAL; | |
639 | } | |
640 | ||
641 | arg_priorities = 0; | |
642 | ||
643 | for (i = 0; i <= p; i++) | |
644 | arg_priorities |= 1 << i; | |
645 | } | |
646 | ||
647 | break; | |
648 | } | |
649 | ||
650 | case 'S': | |
651 | r = parse_timestamp(optarg, &arg_since); | |
652 | if (r < 0) { | |
653 | log_error("Failed to parse timestamp: %s", optarg); | |
654 | return -EINVAL; | |
655 | } | |
656 | arg_since_set = true; | |
657 | break; | |
658 | ||
659 | case 'U': | |
660 | r = parse_timestamp(optarg, &arg_until); | |
661 | if (r < 0) { | |
662 | log_error("Failed to parse timestamp: %s", optarg); | |
663 | return -EINVAL; | |
664 | } | |
665 | arg_until_set = true; | |
666 | break; | |
667 | ||
668 | case 't': | |
669 | r = strv_extend(&arg_syslog_identifier, optarg); | |
670 | if (r < 0) | |
671 | return log_oom(); | |
672 | break; | |
673 | ||
674 | case 'u': | |
675 | r = strv_extend(&arg_system_units, optarg); | |
676 | if (r < 0) | |
677 | return log_oom(); | |
678 | break; | |
679 | ||
680 | case ARG_USER_UNIT: | |
681 | r = strv_extend(&arg_user_units, optarg); | |
682 | if (r < 0) | |
683 | return log_oom(); | |
684 | break; | |
685 | ||
686 | case 'F': | |
687 | arg_field = optarg; | |
688 | break; | |
689 | ||
690 | case 'x': | |
691 | arg_catalog = true; | |
692 | break; | |
693 | ||
694 | case ARG_LIST_CATALOG: | |
695 | arg_action = ACTION_LIST_CATALOG; | |
696 | break; | |
697 | ||
698 | case ARG_DUMP_CATALOG: | |
699 | arg_action = ACTION_DUMP_CATALOG; | |
700 | break; | |
701 | ||
702 | case ARG_UPDATE_CATALOG: | |
703 | arg_action = ACTION_UPDATE_CATALOG; | |
704 | break; | |
705 | ||
706 | case 'r': | |
707 | arg_reverse = true; | |
708 | break; | |
709 | ||
710 | case ARG_UTC: | |
711 | arg_utc = true; | |
712 | break; | |
713 | ||
714 | case ARG_FLUSH: | |
715 | arg_action = ACTION_FLUSH; | |
716 | break; | |
717 | ||
718 | case ARG_ROTATE: | |
719 | arg_action = ACTION_ROTATE; | |
720 | break; | |
721 | ||
722 | case '?': | |
723 | return -EINVAL; | |
724 | ||
725 | default: | |
726 | assert_not_reached("Unhandled option"); | |
727 | } | |
728 | ||
729 | if (arg_follow && !arg_no_tail && !arg_since && arg_lines == ARG_LINES_DEFAULT) | |
730 | arg_lines = 10; | |
731 | ||
732 | if (!!arg_directory + !!arg_file + !!arg_machine > 1) { | |
733 | log_error("Please specify either -D/--directory= or --file= or -M/--machine=, not more than one."); | |
734 | return -EINVAL; | |
735 | } | |
736 | ||
737 | if (arg_since_set && arg_until_set && arg_since > arg_until) { | |
738 | log_error("--since= must be before --until=."); | |
739 | return -EINVAL; | |
740 | } | |
741 | ||
742 | if (!!arg_cursor + !!arg_after_cursor + !!arg_since_set > 1) { | |
743 | log_error("Please specify only one of --since=, --cursor=, and --after-cursor."); | |
744 | return -EINVAL; | |
745 | } | |
746 | ||
747 | if (arg_follow && arg_reverse) { | |
748 | log_error("Please specify either --reverse= or --follow=, not both."); | |
749 | return -EINVAL; | |
750 | } | |
751 | ||
752 | if (!IN_SET(arg_action, ACTION_SHOW, ACTION_DUMP_CATALOG, ACTION_LIST_CATALOG) && optind < argc) { | |
753 | log_error("Extraneous arguments starting with '%s'", argv[optind]); | |
754 | return -EINVAL; | |
755 | } | |
756 | ||
757 | if ((arg_boot || arg_action == ACTION_LIST_BOOTS) && (arg_file || arg_directory || arg_merge)) { | |
758 | log_error("Using --boot or --list-boots with --file, --directory or --merge is not supported."); | |
759 | return -EINVAL; | |
760 | } | |
761 | ||
762 | return 1; | |
763 | } | |
764 | ||
765 | static int generate_new_id128(void) { | |
766 | sd_id128_t id; | |
767 | int r; | |
768 | unsigned i; | |
769 | ||
770 | r = sd_id128_randomize(&id); | |
771 | if (r < 0) | |
772 | return log_error_errno(r, "Failed to generate ID: %m"); | |
773 | ||
774 | printf("As string:\n" | |
775 | SD_ID128_FORMAT_STR "\n\n" | |
776 | "As UUID:\n" | |
777 | "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n\n" | |
778 | "As macro:\n" | |
779 | "#define MESSAGE_XYZ SD_ID128_MAKE(", | |
780 | SD_ID128_FORMAT_VAL(id), | |
781 | SD_ID128_FORMAT_VAL(id)); | |
782 | for (i = 0; i < 16; i++) | |
783 | printf("%02x%s", id.bytes[i], i != 15 ? "," : ""); | |
784 | fputs(")\n\n", stdout); | |
785 | ||
786 | printf("As Python constant:\n" | |
787 | ">>> import uuid\n" | |
788 | ">>> MESSAGE_XYZ = uuid.UUID('" SD_ID128_FORMAT_STR "')\n", | |
789 | SD_ID128_FORMAT_VAL(id)); | |
790 | ||
791 | return 0; | |
792 | } | |
793 | ||
794 | static int add_matches(sd_journal *j, char **args) { | |
795 | char **i; | |
796 | bool have_term = false; | |
797 | ||
798 | assert(j); | |
799 | ||
800 | STRV_FOREACH(i, args) { | |
801 | int r; | |
802 | ||
803 | if (streq(*i, "+")) { | |
804 | if (!have_term) | |
805 | break; | |
806 | r = sd_journal_add_disjunction(j); | |
807 | have_term = false; | |
808 | ||
809 | } else if (path_is_absolute(*i)) { | |
810 | _cleanup_free_ char *p, *t = NULL, *t2 = NULL; | |
811 | const char *path; | |
812 | _cleanup_free_ char *interpreter = NULL; | |
813 | struct stat st; | |
814 | ||
815 | p = canonicalize_file_name(*i); | |
816 | path = p ? p : *i; | |
817 | ||
818 | if (lstat(path, &st) < 0) | |
819 | return log_error_errno(errno, "Couldn't stat file: %m"); | |
820 | ||
821 | if (S_ISREG(st.st_mode) && (0111 & st.st_mode)) { | |
822 | if (executable_is_script(path, &interpreter) > 0) { | |
823 | _cleanup_free_ char *comm; | |
824 | ||
825 | comm = strndup(basename(path), 15); | |
826 | if (!comm) | |
827 | return log_oom(); | |
828 | ||
829 | t = strappend("_COMM=", comm); | |
830 | ||
831 | /* Append _EXE only if the interpreter is not a link. | |
832 | Otherwise, it might be outdated often. */ | |
833 | if (lstat(interpreter, &st) == 0 && | |
834 | !S_ISLNK(st.st_mode)) { | |
835 | t2 = strappend("_EXE=", interpreter); | |
836 | if (!t2) | |
837 | return log_oom(); | |
838 | } | |
839 | } else | |
840 | t = strappend("_EXE=", path); | |
841 | } else if (S_ISCHR(st.st_mode)) | |
842 | (void) asprintf(&t, "_KERNEL_DEVICE=c%u:%u", major(st.st_rdev), minor(st.st_rdev)); | |
843 | else if (S_ISBLK(st.st_mode)) | |
844 | (void) asprintf(&t, "_KERNEL_DEVICE=b%u:%u", major(st.st_rdev), minor(st.st_rdev)); | |
845 | else { | |
846 | log_error("File is neither a device node, nor regular file, nor executable: %s", *i); | |
847 | return -EINVAL; | |
848 | } | |
849 | ||
850 | if (!t) | |
851 | return log_oom(); | |
852 | ||
853 | r = sd_journal_add_match(j, t, 0); | |
854 | if (t2) | |
855 | r = sd_journal_add_match(j, t2, 0); | |
856 | have_term = true; | |
857 | ||
858 | } else { | |
859 | r = sd_journal_add_match(j, *i, 0); | |
860 | have_term = true; | |
861 | } | |
862 | ||
863 | if (r < 0) | |
864 | return log_error_errno(r, "Failed to add match '%s': %m", *i); | |
865 | } | |
866 | ||
867 | if (!strv_isempty(args) && !have_term) { | |
868 | log_error("\"+\" can only be used between terms"); | |
869 | return -EINVAL; | |
870 | } | |
871 | ||
872 | return 0; | |
873 | } | |
874 | ||
875 | static void boot_id_free_all(BootId *l) { | |
876 | ||
877 | while (l) { | |
878 | BootId *i = l; | |
879 | LIST_REMOVE(boot_list, l, i); | |
880 | free(i); | |
881 | } | |
882 | } | |
883 | ||
884 | static int discover_next_boot( | |
885 | sd_journal *j, | |
886 | BootId **boot, | |
887 | bool advance_older, | |
888 | bool read_realtime) { | |
889 | ||
890 | int r; | |
891 | char match[9+32+1] = "_BOOT_ID="; | |
892 | _cleanup_free_ BootId *next_boot = NULL; | |
893 | ||
894 | assert(j); | |
895 | assert(boot); | |
896 | ||
897 | /* We expect the journal to be on the last position of a boot | |
898 | * (in relation to the direction we are going), so that the next | |
899 | * invocation of sd_journal_next/previous will be from a different | |
900 | * boot. We then collect any information we desire and then jump | |
901 | * to the last location of the new boot by using a _BOOT_ID match | |
902 | * coming from the other journal direction. */ | |
903 | ||
904 | /* Make sure we aren't restricted by any _BOOT_ID matches, so that | |
905 | * we can actually advance to a *different* boot. */ | |
906 | sd_journal_flush_matches(j); | |
907 | ||
908 | if (advance_older) | |
909 | r = sd_journal_previous(j); | |
910 | else | |
911 | r = sd_journal_next(j); | |
912 | if (r < 0) | |
913 | return r; | |
914 | else if (r == 0) | |
915 | return 0; /* End of journal, yay. */ | |
916 | ||
917 | next_boot = new0(BootId, 1); | |
918 | if (!next_boot) | |
919 | return -ENOMEM; | |
920 | ||
921 | r = sd_journal_get_monotonic_usec(j, NULL, &next_boot->id); | |
922 | if (r < 0) | |
923 | return r; | |
924 | ||
925 | if (read_realtime) { | |
926 | r = sd_journal_get_realtime_usec(j, &next_boot->first); | |
927 | if (r < 0) | |
928 | return r; | |
929 | } | |
930 | ||
931 | /* Now seek to the last occurrence of this boot ID. */ | |
932 | sd_id128_to_string(next_boot->id, match + 9); | |
933 | r = sd_journal_add_match(j, match, sizeof(match) - 1); | |
934 | if (r < 0) | |
935 | return r; | |
936 | ||
937 | if (advance_older) | |
938 | r = sd_journal_seek_head(j); | |
939 | else | |
940 | r = sd_journal_seek_tail(j); | |
941 | if (r < 0) | |
942 | return r; | |
943 | ||
944 | if (advance_older) | |
945 | r = sd_journal_next(j); | |
946 | else | |
947 | r = sd_journal_previous(j); | |
948 | if (r < 0) | |
949 | return r; | |
950 | else if (r == 0) | |
951 | return -ENODATA; /* This shouldn't happen. We just came from this very boot ID. */ | |
952 | ||
953 | if (read_realtime) { | |
954 | r = sd_journal_get_realtime_usec(j, &next_boot->last); | |
955 | if (r < 0) | |
956 | return r; | |
957 | } | |
958 | ||
959 | *boot = next_boot; | |
960 | next_boot = NULL; | |
961 | ||
962 | return 0; | |
963 | } | |
964 | ||
965 | static int get_boots( | |
966 | sd_journal *j, | |
967 | BootId **boots, | |
968 | BootId *query_ref_boot, | |
969 | int ref_boot_offset) { | |
970 | ||
971 | bool skip_once; | |
972 | int r, count = 0; | |
973 | BootId *head = NULL, *tail = NULL; | |
974 | const bool advance_older = query_ref_boot && ref_boot_offset <= 0; | |
975 | ||
976 | assert(j); | |
977 | ||
978 | /* Adjust for the asymmetry that offset 0 is | |
979 | * the last (and current) boot, while 1 is considered the | |
980 | * (chronological) first boot in the journal. */ | |
981 | skip_once = query_ref_boot && sd_id128_is_null(query_ref_boot->id) && ref_boot_offset < 0; | |
982 | ||
983 | /* Advance to the earliest/latest occurrence of our reference | |
984 | * boot ID (taking our lookup direction into account), so that | |
985 | * discover_next_boot() can do its job. | |
986 | * If no reference is given, the journal head/tail will do, | |
987 | * they're "virtual" boots after all. */ | |
988 | if (query_ref_boot && !sd_id128_is_null(query_ref_boot->id)) { | |
989 | char match[9+32+1] = "_BOOT_ID="; | |
990 | ||
991 | sd_journal_flush_matches(j); | |
992 | ||
993 | sd_id128_to_string(query_ref_boot->id, match + 9); | |
994 | r = sd_journal_add_match(j, match, sizeof(match) - 1); | |
995 | if (r < 0) | |
996 | return r; | |
997 | ||
998 | if (advance_older) | |
999 | r = sd_journal_seek_head(j); | |
1000 | else | |
1001 | r = sd_journal_seek_tail(j); | |
1002 | if (r < 0) | |
1003 | return r; | |
1004 | ||
1005 | if (advance_older) | |
1006 | r = sd_journal_next(j); | |
1007 | else | |
1008 | r = sd_journal_previous(j); | |
1009 | if (r < 0) | |
1010 | return r; | |
1011 | else if (r == 0) | |
1012 | goto finish; | |
1013 | else if (ref_boot_offset == 0) { | |
1014 | count = 1; | |
1015 | goto finish; | |
1016 | } | |
1017 | } else { | |
1018 | if (advance_older) | |
1019 | r = sd_journal_seek_tail(j); | |
1020 | else | |
1021 | r = sd_journal_seek_head(j); | |
1022 | if (r < 0) | |
1023 | return r; | |
1024 | ||
1025 | /* No sd_journal_next/previous here. */ | |
1026 | } | |
1027 | ||
1028 | for (;;) { | |
1029 | _cleanup_free_ BootId *current = NULL; | |
1030 | ||
1031 | r = discover_next_boot(j, ¤t, advance_older, !query_ref_boot); | |
1032 | if (r < 0) { | |
1033 | boot_id_free_all(head); | |
1034 | return r; | |
1035 | } | |
1036 | ||
1037 | if (!current) | |
1038 | break; | |
1039 | ||
1040 | if (query_ref_boot) { | |
1041 | if (!skip_once) | |
1042 | ref_boot_offset += advance_older ? 1 : -1; | |
1043 | skip_once = false; | |
1044 | ||
1045 | if (ref_boot_offset == 0) { | |
1046 | count = 1; | |
1047 | query_ref_boot->id = current->id; | |
1048 | break; | |
1049 | } | |
1050 | } else { | |
1051 | LIST_INSERT_AFTER(boot_list, head, tail, current); | |
1052 | tail = current; | |
1053 | current = NULL; | |
1054 | count++; | |
1055 | } | |
1056 | } | |
1057 | ||
1058 | finish: | |
1059 | if (boots) | |
1060 | *boots = head; | |
1061 | ||
1062 | sd_journal_flush_matches(j); | |
1063 | ||
1064 | return count; | |
1065 | } | |
1066 | ||
1067 | static int list_boots(sd_journal *j) { | |
1068 | int w, i, count; | |
1069 | BootId *id, *all_ids; | |
1070 | ||
1071 | assert(j); | |
1072 | ||
1073 | count = get_boots(j, &all_ids, NULL, 0); | |
1074 | if (count < 0) | |
1075 | return log_error_errno(count, "Failed to determine boots: %m"); | |
1076 | if (count == 0) | |
1077 | return count; | |
1078 | ||
1079 | pager_open_if_enabled(); | |
1080 | ||
1081 | /* numbers are one less, but we need an extra char for the sign */ | |
1082 | w = DECIMAL_STR_WIDTH(count - 1) + 1; | |
1083 | ||
1084 | i = 0; | |
1085 | LIST_FOREACH(boot_list, id, all_ids) { | |
1086 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; | |
1087 | ||
1088 | printf("% *i " SD_ID128_FORMAT_STR " %s—%s\n", | |
1089 | w, i - count + 1, | |
1090 | SD_ID128_FORMAT_VAL(id->id), | |
1091 | format_timestamp_maybe_utc(a, sizeof(a), id->first), | |
1092 | format_timestamp_maybe_utc(b, sizeof(b), id->last)); | |
1093 | i++; | |
1094 | } | |
1095 | ||
1096 | boot_id_free_all(all_ids); | |
1097 | ||
1098 | return 0; | |
1099 | } | |
1100 | ||
1101 | static int add_boot(sd_journal *j) { | |
1102 | char match[9+32+1] = "_BOOT_ID="; | |
1103 | int r; | |
1104 | BootId ref_boot_id = {}; | |
1105 | ||
1106 | assert(j); | |
1107 | ||
1108 | if (!arg_boot) | |
1109 | return 0; | |
1110 | ||
1111 | if (arg_boot_offset == 0 && sd_id128_equal(arg_boot_id, SD_ID128_NULL)) | |
1112 | return add_match_this_boot(j, arg_machine); | |
1113 | ||
1114 | ref_boot_id.id = arg_boot_id; | |
1115 | r = get_boots(j, NULL, &ref_boot_id, arg_boot_offset); | |
1116 | assert(r <= 1); | |
1117 | if (r <= 0) { | |
1118 | const char *reason = (r == 0) ? "No such boot ID in journal" : strerror(-r); | |
1119 | ||
1120 | if (sd_id128_is_null(arg_boot_id)) | |
1121 | log_error("Failed to look up boot %+i: %s", arg_boot_offset, reason); | |
1122 | else | |
1123 | log_error("Failed to look up boot ID "SD_ID128_FORMAT_STR"%+i: %s", | |
1124 | SD_ID128_FORMAT_VAL(arg_boot_id), arg_boot_offset, reason); | |
1125 | ||
1126 | return r == 0 ? -ENODATA : r; | |
1127 | } | |
1128 | ||
1129 | sd_id128_to_string(ref_boot_id.id, match + 9); | |
1130 | ||
1131 | r = sd_journal_add_match(j, match, sizeof(match) - 1); | |
1132 | if (r < 0) | |
1133 | return log_error_errno(r, "Failed to add match: %m"); | |
1134 | ||
1135 | r = sd_journal_add_conjunction(j); | |
1136 | if (r < 0) | |
1137 | return log_error_errno(r, "Failed to add conjunction: %m"); | |
1138 | ||
1139 | return 0; | |
1140 | } | |
1141 | ||
1142 | static int add_dmesg(sd_journal *j) { | |
1143 | int r; | |
1144 | assert(j); | |
1145 | ||
1146 | if (!arg_dmesg) | |
1147 | return 0; | |
1148 | ||
1149 | r = sd_journal_add_match(j, "_TRANSPORT=kernel", strlen("_TRANSPORT=kernel")); | |
1150 | if (r < 0) | |
1151 | return log_error_errno(r, "Failed to add match: %m"); | |
1152 | ||
1153 | r = sd_journal_add_conjunction(j); | |
1154 | if (r < 0) | |
1155 | return log_error_errno(r, "Failed to add conjunction: %m"); | |
1156 | ||
1157 | return 0; | |
1158 | } | |
1159 | ||
1160 | static int get_possible_units( | |
1161 | sd_journal *j, | |
1162 | const char *fields, | |
1163 | char **patterns, | |
1164 | Set **units) { | |
1165 | ||
1166 | _cleanup_set_free_free_ Set *found; | |
1167 | const char *field; | |
1168 | int r; | |
1169 | ||
1170 | found = set_new(&string_hash_ops); | |
1171 | if (!found) | |
1172 | return -ENOMEM; | |
1173 | ||
1174 | NULSTR_FOREACH(field, fields) { | |
1175 | const void *data; | |
1176 | size_t size; | |
1177 | ||
1178 | r = sd_journal_query_unique(j, field); | |
1179 | if (r < 0) | |
1180 | return r; | |
1181 | ||
1182 | SD_JOURNAL_FOREACH_UNIQUE(j, data, size) { | |
1183 | char **pattern, *eq; | |
1184 | size_t prefix; | |
1185 | _cleanup_free_ char *u = NULL; | |
1186 | ||
1187 | eq = memchr(data, '=', size); | |
1188 | if (eq) | |
1189 | prefix = eq - (char*) data + 1; | |
1190 | else | |
1191 | prefix = 0; | |
1192 | ||
1193 | u = strndup((char*) data + prefix, size - prefix); | |
1194 | if (!u) | |
1195 | return -ENOMEM; | |
1196 | ||
1197 | STRV_FOREACH(pattern, patterns) | |
1198 | if (fnmatch(*pattern, u, FNM_NOESCAPE) == 0) { | |
1199 | log_debug("Matched %s with pattern %s=%s", u, field, *pattern); | |
1200 | ||
1201 | r = set_consume(found, u); | |
1202 | u = NULL; | |
1203 | if (r < 0 && r != -EEXIST) | |
1204 | return r; | |
1205 | ||
1206 | break; | |
1207 | } | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | *units = found; | |
1212 | found = NULL; | |
1213 | return 0; | |
1214 | } | |
1215 | ||
1216 | /* This list is supposed to return the superset of unit names | |
1217 | * possibly matched by rules added with add_matches_for_unit... */ | |
1218 | #define SYSTEM_UNITS \ | |
1219 | "_SYSTEMD_UNIT\0" \ | |
1220 | "COREDUMP_UNIT\0" \ | |
1221 | "UNIT\0" \ | |
1222 | "OBJECT_SYSTEMD_UNIT\0" \ | |
1223 | "_SYSTEMD_SLICE\0" | |
1224 | ||
1225 | /* ... and add_matches_for_user_unit */ | |
1226 | #define USER_UNITS \ | |
1227 | "_SYSTEMD_USER_UNIT\0" \ | |
1228 | "USER_UNIT\0" \ | |
1229 | "COREDUMP_USER_UNIT\0" \ | |
1230 | "OBJECT_SYSTEMD_USER_UNIT\0" | |
1231 | ||
1232 | static int add_units(sd_journal *j) { | |
1233 | _cleanup_strv_free_ char **patterns = NULL; | |
1234 | int r, count = 0; | |
1235 | char **i; | |
1236 | ||
1237 | assert(j); | |
1238 | ||
1239 | STRV_FOREACH(i, arg_system_units) { | |
1240 | _cleanup_free_ char *u = NULL; | |
1241 | ||
1242 | r = unit_name_mangle(*i, UNIT_NAME_GLOB, &u); | |
1243 | if (r < 0) | |
1244 | return r; | |
1245 | ||
1246 | if (string_is_glob(u)) { | |
1247 | r = strv_push(&patterns, u); | |
1248 | if (r < 0) | |
1249 | return r; | |
1250 | u = NULL; | |
1251 | } else { | |
1252 | r = add_matches_for_unit(j, u); | |
1253 | if (r < 0) | |
1254 | return r; | |
1255 | r = sd_journal_add_disjunction(j); | |
1256 | if (r < 0) | |
1257 | return r; | |
1258 | count ++; | |
1259 | } | |
1260 | } | |
1261 | ||
1262 | if (!strv_isempty(patterns)) { | |
1263 | _cleanup_set_free_free_ Set *units = NULL; | |
1264 | Iterator it; | |
1265 | char *u; | |
1266 | ||
1267 | r = get_possible_units(j, SYSTEM_UNITS, patterns, &units); | |
1268 | if (r < 0) | |
1269 | return r; | |
1270 | ||
1271 | SET_FOREACH(u, units, it) { | |
1272 | r = add_matches_for_unit(j, u); | |
1273 | if (r < 0) | |
1274 | return r; | |
1275 | r = sd_journal_add_disjunction(j); | |
1276 | if (r < 0) | |
1277 | return r; | |
1278 | count ++; | |
1279 | } | |
1280 | } | |
1281 | ||
1282 | patterns = strv_free(patterns); | |
1283 | ||
1284 | STRV_FOREACH(i, arg_user_units) { | |
1285 | _cleanup_free_ char *u = NULL; | |
1286 | ||
1287 | r = unit_name_mangle(*i, UNIT_NAME_GLOB, &u); | |
1288 | if (r < 0) | |
1289 | return r; | |
1290 | ||
1291 | if (string_is_glob(u)) { | |
1292 | r = strv_push(&patterns, u); | |
1293 | if (r < 0) | |
1294 | return r; | |
1295 | u = NULL; | |
1296 | } else { | |
1297 | r = add_matches_for_user_unit(j, u, getuid()); | |
1298 | if (r < 0) | |
1299 | return r; | |
1300 | r = sd_journal_add_disjunction(j); | |
1301 | if (r < 0) | |
1302 | return r; | |
1303 | count ++; | |
1304 | } | |
1305 | } | |
1306 | ||
1307 | if (!strv_isempty(patterns)) { | |
1308 | _cleanup_set_free_free_ Set *units = NULL; | |
1309 | Iterator it; | |
1310 | char *u; | |
1311 | ||
1312 | r = get_possible_units(j, USER_UNITS, patterns, &units); | |
1313 | if (r < 0) | |
1314 | return r; | |
1315 | ||
1316 | SET_FOREACH(u, units, it) { | |
1317 | r = add_matches_for_user_unit(j, u, getuid()); | |
1318 | if (r < 0) | |
1319 | return r; | |
1320 | r = sd_journal_add_disjunction(j); | |
1321 | if (r < 0) | |
1322 | return r; | |
1323 | count ++; | |
1324 | } | |
1325 | } | |
1326 | ||
1327 | /* Complain if the user request matches but nothing whatsoever was | |
1328 | * found, since otherwise everything would be matched. */ | |
1329 | if (!(strv_isempty(arg_system_units) && strv_isempty(arg_user_units)) && count == 0) | |
1330 | return -ENODATA; | |
1331 | ||
1332 | r = sd_journal_add_conjunction(j); | |
1333 | if (r < 0) | |
1334 | return r; | |
1335 | ||
1336 | return 0; | |
1337 | } | |
1338 | ||
1339 | static int add_priorities(sd_journal *j) { | |
1340 | char match[] = "PRIORITY=0"; | |
1341 | int i, r; | |
1342 | assert(j); | |
1343 | ||
1344 | if (arg_priorities == 0xFF) | |
1345 | return 0; | |
1346 | ||
1347 | for (i = LOG_EMERG; i <= LOG_DEBUG; i++) | |
1348 | if (arg_priorities & (1 << i)) { | |
1349 | match[sizeof(match)-2] = '0' + i; | |
1350 | ||
1351 | r = sd_journal_add_match(j, match, strlen(match)); | |
1352 | if (r < 0) | |
1353 | return log_error_errno(r, "Failed to add match: %m"); | |
1354 | } | |
1355 | ||
1356 | r = sd_journal_add_conjunction(j); | |
1357 | if (r < 0) | |
1358 | return log_error_errno(r, "Failed to add conjunction: %m"); | |
1359 | ||
1360 | return 0; | |
1361 | } | |
1362 | ||
1363 | ||
1364 | static int add_syslog_identifier(sd_journal *j) { | |
1365 | int r; | |
1366 | char **i; | |
1367 | ||
1368 | assert(j); | |
1369 | ||
1370 | STRV_FOREACH(i, arg_syslog_identifier) { | |
1371 | char *u; | |
1372 | ||
1373 | u = strjoina("SYSLOG_IDENTIFIER=", *i); | |
1374 | r = sd_journal_add_match(j, u, 0); | |
1375 | if (r < 0) | |
1376 | return r; | |
1377 | r = sd_journal_add_disjunction(j); | |
1378 | if (r < 0) | |
1379 | return r; | |
1380 | } | |
1381 | ||
1382 | r = sd_journal_add_conjunction(j); | |
1383 | if (r < 0) | |
1384 | return r; | |
1385 | ||
1386 | return 0; | |
1387 | } | |
1388 | ||
1389 | static int setup_keys(void) { | |
1390 | #ifdef HAVE_GCRYPT | |
1391 | size_t mpk_size, seed_size, state_size, i; | |
1392 | uint8_t *mpk, *seed, *state; | |
1393 | int fd = -1, r; | |
1394 | sd_id128_t machine, boot; | |
1395 | char *p = NULL, *k = NULL; | |
1396 | struct FSSHeader h; | |
1397 | uint64_t n; | |
1398 | struct stat st; | |
1399 | ||
1400 | r = stat("/var/log/journal", &st); | |
1401 | if (r < 0 && errno != ENOENT && errno != ENOTDIR) | |
1402 | return log_error_errno(errno, "stat(\"%s\") failed: %m", "/var/log/journal"); | |
1403 | ||
1404 | if (r < 0 || !S_ISDIR(st.st_mode)) { | |
1405 | log_error("%s is not a directory, must be using persistent logging for FSS.", | |
1406 | "/var/log/journal"); | |
1407 | return r < 0 ? -errno : -ENOTDIR; | |
1408 | } | |
1409 | ||
1410 | r = sd_id128_get_machine(&machine); | |
1411 | if (r < 0) | |
1412 | return log_error_errno(r, "Failed to get machine ID: %m"); | |
1413 | ||
1414 | r = sd_id128_get_boot(&boot); | |
1415 | if (r < 0) | |
1416 | return log_error_errno(r, "Failed to get boot ID: %m"); | |
1417 | ||
1418 | if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss", | |
1419 | SD_ID128_FORMAT_VAL(machine)) < 0) | |
1420 | return log_oom(); | |
1421 | ||
1422 | if (arg_force) { | |
1423 | r = unlink(p); | |
1424 | if (r < 0 && errno != ENOENT) { | |
1425 | r = log_error_errno(errno, "unlink(\"%s\") failed: %m", p); | |
1426 | goto finish; | |
1427 | } | |
1428 | } else if (access(p, F_OK) >= 0) { | |
1429 | log_error("Sealing key file %s exists already. Use --force to recreate.", p); | |
1430 | r = -EEXIST; | |
1431 | goto finish; | |
1432 | } | |
1433 | ||
1434 | if (asprintf(&k, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss.tmp.XXXXXX", | |
1435 | SD_ID128_FORMAT_VAL(machine)) < 0) { | |
1436 | r = log_oom(); | |
1437 | goto finish; | |
1438 | } | |
1439 | ||
1440 | mpk_size = FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR); | |
1441 | mpk = alloca(mpk_size); | |
1442 | ||
1443 | seed_size = FSPRG_RECOMMENDED_SEEDLEN; | |
1444 | seed = alloca(seed_size); | |
1445 | ||
1446 | state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR); | |
1447 | state = alloca(state_size); | |
1448 | ||
1449 | fd = open("/dev/random", O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
1450 | if (fd < 0) { | |
1451 | r = log_error_errno(errno, "Failed to open /dev/random: %m"); | |
1452 | goto finish; | |
1453 | } | |
1454 | ||
1455 | log_info("Generating seed..."); | |
1456 | r = loop_read_exact(fd, seed, seed_size, true); | |
1457 | if (r < 0) { | |
1458 | log_error_errno(r, "Failed to read random seed: %m"); | |
1459 | goto finish; | |
1460 | } | |
1461 | ||
1462 | log_info("Generating key pair..."); | |
1463 | FSPRG_GenMK(NULL, mpk, seed, seed_size, FSPRG_RECOMMENDED_SECPAR); | |
1464 | ||
1465 | log_info("Generating sealing key..."); | |
1466 | FSPRG_GenState0(state, mpk, seed, seed_size); | |
1467 | ||
1468 | assert(arg_interval > 0); | |
1469 | ||
1470 | n = now(CLOCK_REALTIME); | |
1471 | n /= arg_interval; | |
1472 | ||
1473 | safe_close(fd); | |
1474 | fd = mkostemp_safe(k, O_WRONLY|O_CLOEXEC); | |
1475 | if (fd < 0) { | |
1476 | r = log_error_errno(errno, "Failed to open %s: %m", k); | |
1477 | goto finish; | |
1478 | } | |
1479 | ||
1480 | /* Enable secure remove, exclusion from dump, synchronous | |
1481 | * writing and in-place updating */ | |
1482 | 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); | |
1483 | if (r < 0) | |
1484 | log_warning_errno(errno, "Failed to set file attributes: %m"); | |
1485 | ||
1486 | zero(h); | |
1487 | memcpy(h.signature, "KSHHRHLP", 8); | |
1488 | h.machine_id = machine; | |
1489 | h.boot_id = boot; | |
1490 | h.header_size = htole64(sizeof(h)); | |
1491 | h.start_usec = htole64(n * arg_interval); | |
1492 | h.interval_usec = htole64(arg_interval); | |
1493 | h.fsprg_secpar = htole16(FSPRG_RECOMMENDED_SECPAR); | |
1494 | h.fsprg_state_size = htole64(state_size); | |
1495 | ||
1496 | r = loop_write(fd, &h, sizeof(h), false); | |
1497 | if (r < 0) { | |
1498 | log_error_errno(r, "Failed to write header: %m"); | |
1499 | goto finish; | |
1500 | } | |
1501 | ||
1502 | r = loop_write(fd, state, state_size, false); | |
1503 | if (r < 0) { | |
1504 | log_error_errno(r, "Failed to write state: %m"); | |
1505 | goto finish; | |
1506 | } | |
1507 | ||
1508 | if (link(k, p) < 0) { | |
1509 | r = log_error_errno(errno, "Failed to link file: %m"); | |
1510 | goto finish; | |
1511 | } | |
1512 | ||
1513 | if (on_tty()) { | |
1514 | fprintf(stderr, | |
1515 | "\n" | |
1516 | "The new key pair has been generated. The " ANSI_HIGHLIGHT "secret sealing key" ANSI_NORMAL " has been written to\n" | |
1517 | "the following local file. This key file is automatically updated when the\n" | |
1518 | "sealing key is advanced. It should not be used on multiple hosts.\n" | |
1519 | "\n" | |
1520 | "\t%s\n" | |
1521 | "\n" | |
1522 | "Please write down the following " ANSI_HIGHLIGHT "secret verification key" ANSI_NORMAL ". It should be stored\n" | |
1523 | "at a safe location and should not be saved locally on disk.\n" | |
1524 | "\n\t" ANSI_HIGHLIGHT_RED, p); | |
1525 | fflush(stderr); | |
1526 | } | |
1527 | for (i = 0; i < seed_size; i++) { | |
1528 | if (i > 0 && i % 3 == 0) | |
1529 | putchar('-'); | |
1530 | printf("%02x", ((uint8_t*) seed)[i]); | |
1531 | } | |
1532 | ||
1533 | printf("/%llx-%llx\n", (unsigned long long) n, (unsigned long long) arg_interval); | |
1534 | ||
1535 | if (on_tty()) { | |
1536 | char tsb[FORMAT_TIMESPAN_MAX], *hn; | |
1537 | ||
1538 | fprintf(stderr, | |
1539 | ANSI_NORMAL "\n" | |
1540 | "The sealing key is automatically changed every %s.\n", | |
1541 | format_timespan(tsb, sizeof(tsb), arg_interval, 0)); | |
1542 | ||
1543 | hn = gethostname_malloc(); | |
1544 | ||
1545 | if (hn) { | |
1546 | hostname_cleanup(hn); | |
1547 | fprintf(stderr, "\nThe keys have been generated for host %s/" SD_ID128_FORMAT_STR ".\n", hn, SD_ID128_FORMAT_VAL(machine)); | |
1548 | } else | |
1549 | fprintf(stderr, "\nThe keys have been generated for host " SD_ID128_FORMAT_STR ".\n", SD_ID128_FORMAT_VAL(machine)); | |
1550 | ||
1551 | #ifdef HAVE_QRENCODE | |
1552 | /* If this is not an UTF-8 system don't print any QR codes */ | |
1553 | if (is_locale_utf8()) { | |
1554 | fputs("\nTo transfer the verification key to your phone please scan the QR code below:\n\n", stderr); | |
1555 | print_qr_code(stderr, seed, seed_size, n, arg_interval, hn, machine); | |
1556 | } | |
1557 | #endif | |
1558 | free(hn); | |
1559 | } | |
1560 | ||
1561 | r = 0; | |
1562 | ||
1563 | finish: | |
1564 | safe_close(fd); | |
1565 | ||
1566 | if (k) { | |
1567 | unlink(k); | |
1568 | free(k); | |
1569 | } | |
1570 | ||
1571 | free(p); | |
1572 | ||
1573 | return r; | |
1574 | #else | |
1575 | log_error("Forward-secure sealing not available."); | |
1576 | return -EOPNOTSUPP; | |
1577 | #endif | |
1578 | } | |
1579 | ||
1580 | static int verify(sd_journal *j) { | |
1581 | int r = 0; | |
1582 | Iterator i; | |
1583 | JournalFile *f; | |
1584 | ||
1585 | assert(j); | |
1586 | ||
1587 | log_show_color(true); | |
1588 | ||
1589 | ORDERED_HASHMAP_FOREACH(f, j->files, i) { | |
1590 | int k; | |
1591 | usec_t first = 0, validated = 0, last = 0; | |
1592 | ||
1593 | #ifdef HAVE_GCRYPT | |
1594 | if (!arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) | |
1595 | log_notice("Journal file %s has sealing enabled but verification key has not been passed using --verify-key=.", f->path); | |
1596 | #endif | |
1597 | ||
1598 | k = journal_file_verify(f, arg_verify_key, &first, &validated, &last, true); | |
1599 | if (k == -EINVAL) { | |
1600 | /* If the key was invalid give up right-away. */ | |
1601 | return k; | |
1602 | } else if (k < 0) { | |
1603 | log_warning_errno(k, "FAIL: %s (%m)", f->path); | |
1604 | r = k; | |
1605 | } else { | |
1606 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX], c[FORMAT_TIMESPAN_MAX]; | |
1607 | log_info("PASS: %s", f->path); | |
1608 | ||
1609 | if (arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) { | |
1610 | if (validated > 0) { | |
1611 | log_info("=> Validated from %s to %s, final %s entries not sealed.", | |
1612 | format_timestamp_maybe_utc(a, sizeof(a), first), | |
1613 | format_timestamp_maybe_utc(b, sizeof(b), validated), | |
1614 | format_timespan(c, sizeof(c), last > validated ? last - validated : 0, 0)); | |
1615 | } else if (last > 0) | |
1616 | log_info("=> No sealing yet, %s of entries not sealed.", | |
1617 | format_timespan(c, sizeof(c), last - first, 0)); | |
1618 | else | |
1619 | log_info("=> No sealing yet, no entries in file."); | |
1620 | } | |
1621 | } | |
1622 | } | |
1623 | ||
1624 | return r; | |
1625 | } | |
1626 | ||
1627 | static int access_check_var_log_journal(sd_journal *j) { | |
1628 | #ifdef HAVE_ACL | |
1629 | _cleanup_strv_free_ char **g = NULL; | |
1630 | const char* dir; | |
1631 | #endif | |
1632 | int r; | |
1633 | ||
1634 | assert(j); | |
1635 | ||
1636 | if (arg_quiet) | |
1637 | return 0; | |
1638 | ||
1639 | /* If we are root, we should have access, don't warn. */ | |
1640 | if (getuid() == 0) | |
1641 | return 0; | |
1642 | ||
1643 | /* If we are in the 'systemd-journal' group, we should have | |
1644 | * access too. */ | |
1645 | r = in_group("systemd-journal"); | |
1646 | if (r < 0) | |
1647 | return log_error_errno(r, "Failed to check if we are in the 'systemd-journal' group: %m"); | |
1648 | if (r > 0) | |
1649 | return 0; | |
1650 | ||
1651 | #ifdef HAVE_ACL | |
1652 | if (laccess("/run/log/journal", F_OK) >= 0) | |
1653 | dir = "/run/log/journal"; | |
1654 | else | |
1655 | dir = "/var/log/journal"; | |
1656 | ||
1657 | /* If we are in any of the groups listed in the journal ACLs, | |
1658 | * then all is good, too. Let's enumerate all groups from the | |
1659 | * default ACL of the directory, which generally should allow | |
1660 | * access to most journal files too. */ | |
1661 | r = acl_search_groups(dir, &g); | |
1662 | if (r < 0) | |
1663 | return log_error_errno(r, "Failed to search journal ACL: %m"); | |
1664 | if (r > 0) | |
1665 | return 0; | |
1666 | ||
1667 | /* Print a pretty list, if there were ACLs set. */ | |
1668 | if (!strv_isempty(g)) { | |
1669 | _cleanup_free_ char *s = NULL; | |
1670 | ||
1671 | /* Thre are groups in the ACL, let's list them */ | |
1672 | r = strv_extend(&g, "systemd-journal"); | |
1673 | if (r < 0) | |
1674 | return log_oom(); | |
1675 | ||
1676 | strv_sort(g); | |
1677 | strv_uniq(g); | |
1678 | ||
1679 | s = strv_join(g, "', '"); | |
1680 | if (!s) | |
1681 | return log_oom(); | |
1682 | ||
1683 | log_notice("Hint: You are currently not seeing messages from other users and the system.\n" | |
1684 | " Users in groups '%s' can see all messages.\n" | |
1685 | " Pass -q to turn off this notice.", s); | |
1686 | return 1; | |
1687 | } | |
1688 | #endif | |
1689 | ||
1690 | /* If no ACLs were found, print a short version of the message. */ | |
1691 | log_notice("Hint: You are currently not seeing messages from other users and the system.\n" | |
1692 | " Users in the 'systemd-journal' group can see all messages. Pass -q to\n" | |
1693 | " turn off this notice."); | |
1694 | ||
1695 | return 1; | |
1696 | } | |
1697 | ||
1698 | static int access_check(sd_journal *j) { | |
1699 | Iterator it; | |
1700 | void *code; | |
1701 | int r = 0; | |
1702 | ||
1703 | assert(j); | |
1704 | ||
1705 | if (set_isempty(j->errors)) { | |
1706 | if (ordered_hashmap_isempty(j->files)) | |
1707 | log_notice("No journal files were found."); | |
1708 | ||
1709 | return 0; | |
1710 | } | |
1711 | ||
1712 | if (set_contains(j->errors, INT_TO_PTR(-EACCES))) { | |
1713 | (void) access_check_var_log_journal(j); | |
1714 | ||
1715 | if (ordered_hashmap_isempty(j->files)) | |
1716 | r = log_error_errno(EACCES, "No journal files were opened due to insufficient permissions."); | |
1717 | } | |
1718 | ||
1719 | SET_FOREACH(code, j->errors, it) { | |
1720 | int err; | |
1721 | ||
1722 | err = -PTR_TO_INT(code); | |
1723 | assert(err > 0); | |
1724 | ||
1725 | if (err == EACCES) | |
1726 | continue; | |
1727 | ||
1728 | log_warning_errno(err, "Error was encountered while opening journal files: %m"); | |
1729 | if (r == 0) | |
1730 | r = -err; | |
1731 | } | |
1732 | ||
1733 | return r; | |
1734 | } | |
1735 | ||
1736 | static int flush_to_var(void) { | |
1737 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
1738 | _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL; | |
1739 | _cleanup_close_ int watch_fd = -1; | |
1740 | int r; | |
1741 | ||
1742 | /* Quick exit */ | |
1743 | if (access("/run/systemd/journal/flushed", F_OK) >= 0) | |
1744 | return 0; | |
1745 | ||
1746 | /* OK, let's actually do the full logic, send SIGUSR1 to the | |
1747 | * daemon and set up inotify to wait for the flushed file to appear */ | |
1748 | r = bus_connect_system_systemd(&bus); | |
1749 | if (r < 0) | |
1750 | return log_error_errno(r, "Failed to get D-Bus connection: %m"); | |
1751 | ||
1752 | r = sd_bus_call_method( | |
1753 | bus, | |
1754 | "org.freedesktop.systemd1", | |
1755 | "/org/freedesktop/systemd1", | |
1756 | "org.freedesktop.systemd1.Manager", | |
1757 | "KillUnit", | |
1758 | &error, | |
1759 | NULL, | |
1760 | "ssi", "systemd-journald.service", "main", SIGUSR1); | |
1761 | if (r < 0) { | |
1762 | log_error("Failed to kill journal service: %s", bus_error_message(&error, r)); | |
1763 | return r; | |
1764 | } | |
1765 | ||
1766 | mkdir_p("/run/systemd/journal", 0755); | |
1767 | ||
1768 | watch_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC); | |
1769 | if (watch_fd < 0) | |
1770 | return log_error_errno(errno, "Failed to create inotify watch: %m"); | |
1771 | ||
1772 | r = inotify_add_watch(watch_fd, "/run/systemd/journal", IN_CREATE|IN_DONT_FOLLOW|IN_ONLYDIR); | |
1773 | if (r < 0) | |
1774 | return log_error_errno(errno, "Failed to watch journal directory: %m"); | |
1775 | ||
1776 | for (;;) { | |
1777 | if (access("/run/systemd/journal/flushed", F_OK) >= 0) | |
1778 | break; | |
1779 | ||
1780 | if (errno != ENOENT) | |
1781 | return log_error_errno(errno, "Failed to check for existence of /run/systemd/journal/flushed: %m"); | |
1782 | ||
1783 | r = fd_wait_for_event(watch_fd, POLLIN, USEC_INFINITY); | |
1784 | if (r < 0) | |
1785 | return log_error_errno(r, "Failed to wait for event: %m"); | |
1786 | ||
1787 | r = flush_fd(watch_fd); | |
1788 | if (r < 0) | |
1789 | return log_error_errno(r, "Failed to flush inotify events: %m"); | |
1790 | } | |
1791 | ||
1792 | return 0; | |
1793 | } | |
1794 | ||
1795 | static int rotate(void) { | |
1796 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; | |
1797 | _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL; | |
1798 | int r; | |
1799 | ||
1800 | r = bus_connect_system_systemd(&bus); | |
1801 | if (r < 0) | |
1802 | return log_error_errno(r, "Failed to get D-Bus connection: %m"); | |
1803 | ||
1804 | r = sd_bus_call_method( | |
1805 | bus, | |
1806 | "org.freedesktop.systemd1", | |
1807 | "/org/freedesktop/systemd1", | |
1808 | "org.freedesktop.systemd1.Manager", | |
1809 | "KillUnit", | |
1810 | &error, | |
1811 | NULL, | |
1812 | "ssi", "systemd-journald.service", "main", SIGUSR2); | |
1813 | if (r < 0) | |
1814 | return log_error_errno(r, "Failed to kill journal service: %s", bus_error_message(&error, r)); | |
1815 | ||
1816 | return 0; | |
1817 | } | |
1818 | ||
1819 | int main(int argc, char *argv[]) { | |
1820 | int r; | |
1821 | _cleanup_journal_close_ sd_journal *j = NULL; | |
1822 | bool need_seek = false; | |
1823 | sd_id128_t previous_boot_id; | |
1824 | bool previous_boot_id_valid = false, first_line = true; | |
1825 | int n_shown = 0; | |
1826 | bool ellipsized = false; | |
1827 | ||
1828 | setlocale(LC_ALL, ""); | |
1829 | log_parse_environment(); | |
1830 | log_open(); | |
1831 | ||
1832 | r = parse_argv(argc, argv); | |
1833 | if (r <= 0) | |
1834 | goto finish; | |
1835 | ||
1836 | signal(SIGWINCH, columns_lines_cache_reset); | |
1837 | sigbus_install(); | |
1838 | ||
1839 | /* Increase max number of open files to 16K if we can, we | |
1840 | * might needs this when browsing journal files, which might | |
1841 | * be split up into many files. */ | |
1842 | setrlimit_closest(RLIMIT_NOFILE, &RLIMIT_MAKE_CONST(16384)); | |
1843 | ||
1844 | if (arg_action == ACTION_NEW_ID128) { | |
1845 | r = generate_new_id128(); | |
1846 | goto finish; | |
1847 | } | |
1848 | ||
1849 | if (arg_action == ACTION_FLUSH) { | |
1850 | r = flush_to_var(); | |
1851 | goto finish; | |
1852 | } | |
1853 | ||
1854 | if (arg_action == ACTION_ROTATE) { | |
1855 | r = rotate(); | |
1856 | goto finish; | |
1857 | } | |
1858 | ||
1859 | if (arg_action == ACTION_SETUP_KEYS) { | |
1860 | r = setup_keys(); | |
1861 | goto finish; | |
1862 | } | |
1863 | ||
1864 | if (arg_action == ACTION_UPDATE_CATALOG || | |
1865 | arg_action == ACTION_LIST_CATALOG || | |
1866 | arg_action == ACTION_DUMP_CATALOG) { | |
1867 | ||
1868 | _cleanup_free_ char *database; | |
1869 | ||
1870 | database = path_join(arg_root, CATALOG_DATABASE, NULL); | |
1871 | if (!database) { | |
1872 | r = log_oom(); | |
1873 | goto finish; | |
1874 | } | |
1875 | ||
1876 | if (arg_action == ACTION_UPDATE_CATALOG) { | |
1877 | r = catalog_update(database, arg_root, catalog_file_dirs); | |
1878 | if (r < 0) | |
1879 | log_error_errno(r, "Failed to list catalog: %m"); | |
1880 | } else { | |
1881 | bool oneline = arg_action == ACTION_LIST_CATALOG; | |
1882 | ||
1883 | pager_open_if_enabled(); | |
1884 | if (optind < argc) | |
1885 | r = catalog_list_items(stdout, database, | |
1886 | oneline, argv + optind); | |
1887 | else | |
1888 | r = catalog_list(stdout, database, oneline); | |
1889 | if (r < 0) | |
1890 | log_error_errno(r, "Failed to list catalog: %m"); | |
1891 | } | |
1892 | ||
1893 | goto finish; | |
1894 | } | |
1895 | ||
1896 | if (arg_directory) | |
1897 | r = sd_journal_open_directory(&j, arg_directory, arg_journal_type); | |
1898 | else if (arg_file) | |
1899 | r = sd_journal_open_files(&j, (const char**) arg_file, 0); | |
1900 | else if (arg_machine) | |
1901 | r = sd_journal_open_container(&j, arg_machine, 0); | |
1902 | else | |
1903 | r = sd_journal_open(&j, !arg_merge*SD_JOURNAL_LOCAL_ONLY + arg_journal_type); | |
1904 | if (r < 0) { | |
1905 | log_error_errno(r, "Failed to open %s: %m", | |
1906 | arg_directory ? arg_directory : arg_file ? "files" : "journal"); | |
1907 | goto finish; | |
1908 | } | |
1909 | ||
1910 | r = access_check(j); | |
1911 | if (r < 0) | |
1912 | goto finish; | |
1913 | ||
1914 | if (arg_action == ACTION_VERIFY) { | |
1915 | r = verify(j); | |
1916 | goto finish; | |
1917 | } | |
1918 | ||
1919 | if (arg_action == ACTION_PRINT_HEADER) { | |
1920 | journal_print_header(j); | |
1921 | r = 0; | |
1922 | goto finish; | |
1923 | } | |
1924 | ||
1925 | if (arg_action == ACTION_DISK_USAGE) { | |
1926 | uint64_t bytes = 0; | |
1927 | char sbytes[FORMAT_BYTES_MAX]; | |
1928 | ||
1929 | r = sd_journal_get_usage(j, &bytes); | |
1930 | if (r < 0) | |
1931 | goto finish; | |
1932 | ||
1933 | printf("Archived and active journals take up %s on disk.\n", | |
1934 | format_bytes(sbytes, sizeof(sbytes), bytes)); | |
1935 | goto finish; | |
1936 | } | |
1937 | ||
1938 | if (arg_action == ACTION_VACUUM) { | |
1939 | Directory *d; | |
1940 | Iterator i; | |
1941 | ||
1942 | HASHMAP_FOREACH(d, j->directories_by_path, i) { | |
1943 | int q; | |
1944 | ||
1945 | if (d->is_root) | |
1946 | continue; | |
1947 | ||
1948 | q = journal_directory_vacuum(d->path, arg_vacuum_size, arg_vacuum_n_files, arg_vacuum_time, NULL, true); | |
1949 | if (q < 0) { | |
1950 | log_error_errno(q, "Failed to vacuum %s: %m", d->path); | |
1951 | r = q; | |
1952 | } | |
1953 | } | |
1954 | ||
1955 | goto finish; | |
1956 | } | |
1957 | ||
1958 | if (arg_action == ACTION_LIST_BOOTS) { | |
1959 | r = list_boots(j); | |
1960 | goto finish; | |
1961 | } | |
1962 | ||
1963 | /* add_boot() must be called first! | |
1964 | * It may need to seek the journal to find parent boot IDs. */ | |
1965 | r = add_boot(j); | |
1966 | if (r < 0) | |
1967 | goto finish; | |
1968 | ||
1969 | r = add_dmesg(j); | |
1970 | if (r < 0) | |
1971 | goto finish; | |
1972 | ||
1973 | r = add_units(j); | |
1974 | if (r < 0) { | |
1975 | log_error_errno(r, "Failed to add filter for units: %m"); | |
1976 | goto finish; | |
1977 | } | |
1978 | ||
1979 | r = add_syslog_identifier(j); | |
1980 | if (r < 0) { | |
1981 | log_error_errno(r, "Failed to add filter for syslog identifiers: %m"); | |
1982 | goto finish; | |
1983 | } | |
1984 | ||
1985 | r = add_priorities(j); | |
1986 | if (r < 0) | |
1987 | goto finish; | |
1988 | ||
1989 | r = add_matches(j, argv + optind); | |
1990 | if (r < 0) | |
1991 | goto finish; | |
1992 | ||
1993 | if (_unlikely_(log_get_max_level() >= LOG_DEBUG)) { | |
1994 | _cleanup_free_ char *filter; | |
1995 | ||
1996 | filter = journal_make_match_string(j); | |
1997 | if (!filter) | |
1998 | return log_oom(); | |
1999 | ||
2000 | log_debug("Journal filter: %s", filter); | |
2001 | } | |
2002 | ||
2003 | if (arg_field) { | |
2004 | const void *data; | |
2005 | size_t size; | |
2006 | ||
2007 | r = sd_journal_set_data_threshold(j, 0); | |
2008 | if (r < 0) { | |
2009 | log_error_errno(r, "Failed to unset data size threshold: %m"); | |
2010 | goto finish; | |
2011 | } | |
2012 | ||
2013 | r = sd_journal_query_unique(j, arg_field); | |
2014 | if (r < 0) { | |
2015 | log_error_errno(r, "Failed to query unique data objects: %m"); | |
2016 | goto finish; | |
2017 | } | |
2018 | ||
2019 | SD_JOURNAL_FOREACH_UNIQUE(j, data, size) { | |
2020 | const void *eq; | |
2021 | ||
2022 | if (arg_lines >= 0 && n_shown >= arg_lines) | |
2023 | break; | |
2024 | ||
2025 | eq = memchr(data, '=', size); | |
2026 | if (eq) | |
2027 | printf("%.*s\n", (int) (size - ((const uint8_t*) eq - (const uint8_t*) data + 1)), (const char*) eq + 1); | |
2028 | else | |
2029 | printf("%.*s\n", (int) size, (const char*) data); | |
2030 | ||
2031 | n_shown ++; | |
2032 | } | |
2033 | ||
2034 | r = 0; | |
2035 | goto finish; | |
2036 | } | |
2037 | ||
2038 | /* Opening the fd now means the first sd_journal_wait() will actually wait */ | |
2039 | if (arg_follow) { | |
2040 | r = sd_journal_get_fd(j); | |
2041 | if (r < 0) { | |
2042 | log_error_errno(r, "Failed to get journal fd: %m"); | |
2043 | goto finish; | |
2044 | } | |
2045 | } | |
2046 | ||
2047 | if (arg_cursor || arg_after_cursor) { | |
2048 | r = sd_journal_seek_cursor(j, arg_cursor ?: arg_after_cursor); | |
2049 | if (r < 0) { | |
2050 | log_error_errno(r, "Failed to seek to cursor: %m"); | |
2051 | goto finish; | |
2052 | } | |
2053 | ||
2054 | if (!arg_reverse) | |
2055 | r = sd_journal_next_skip(j, 1 + !!arg_after_cursor); | |
2056 | else | |
2057 | r = sd_journal_previous_skip(j, 1 + !!arg_after_cursor); | |
2058 | ||
2059 | if (arg_after_cursor && r < 2) { | |
2060 | /* We couldn't find the next entry after the cursor. */ | |
2061 | if (arg_follow) | |
2062 | need_seek = true; | |
2063 | else | |
2064 | arg_lines = 0; | |
2065 | } | |
2066 | ||
2067 | } else if (arg_since_set && !arg_reverse) { | |
2068 | r = sd_journal_seek_realtime_usec(j, arg_since); | |
2069 | if (r < 0) { | |
2070 | log_error_errno(r, "Failed to seek to date: %m"); | |
2071 | goto finish; | |
2072 | } | |
2073 | r = sd_journal_next(j); | |
2074 | ||
2075 | } else if (arg_until_set && arg_reverse) { | |
2076 | r = sd_journal_seek_realtime_usec(j, arg_until); | |
2077 | if (r < 0) { | |
2078 | log_error_errno(r, "Failed to seek to date: %m"); | |
2079 | goto finish; | |
2080 | } | |
2081 | r = sd_journal_previous(j); | |
2082 | ||
2083 | } else if (arg_lines >= 0) { | |
2084 | r = sd_journal_seek_tail(j); | |
2085 | if (r < 0) { | |
2086 | log_error_errno(r, "Failed to seek to tail: %m"); | |
2087 | goto finish; | |
2088 | } | |
2089 | ||
2090 | r = sd_journal_previous_skip(j, arg_lines); | |
2091 | ||
2092 | } else if (arg_reverse) { | |
2093 | r = sd_journal_seek_tail(j); | |
2094 | if (r < 0) { | |
2095 | log_error_errno(r, "Failed to seek to tail: %m"); | |
2096 | goto finish; | |
2097 | } | |
2098 | ||
2099 | r = sd_journal_previous(j); | |
2100 | ||
2101 | } else { | |
2102 | r = sd_journal_seek_head(j); | |
2103 | if (r < 0) { | |
2104 | log_error_errno(r, "Failed to seek to head: %m"); | |
2105 | goto finish; | |
2106 | } | |
2107 | ||
2108 | r = sd_journal_next(j); | |
2109 | } | |
2110 | ||
2111 | if (r < 0) { | |
2112 | log_error_errno(r, "Failed to iterate through journal: %m"); | |
2113 | goto finish; | |
2114 | } | |
2115 | if (r == 0) { | |
2116 | if (arg_follow) | |
2117 | need_seek = true; | |
2118 | else { | |
2119 | printf("-- No entries --\n"); | |
2120 | goto finish; | |
2121 | } | |
2122 | } | |
2123 | ||
2124 | if (!arg_follow) | |
2125 | pager_open_if_enabled(); | |
2126 | ||
2127 | if (!arg_quiet) { | |
2128 | usec_t start, end; | |
2129 | char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX]; | |
2130 | ||
2131 | r = sd_journal_get_cutoff_realtime_usec(j, &start, &end); | |
2132 | if (r < 0) { | |
2133 | log_error_errno(r, "Failed to get cutoff: %m"); | |
2134 | goto finish; | |
2135 | } | |
2136 | ||
2137 | if (r > 0) { | |
2138 | if (arg_follow) | |
2139 | printf("-- Logs begin at %s. --\n", | |
2140 | format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start)); | |
2141 | else | |
2142 | printf("-- Logs begin at %s, end at %s. --\n", | |
2143 | format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start), | |
2144 | format_timestamp_maybe_utc(end_buf, sizeof(end_buf), end)); | |
2145 | } | |
2146 | } | |
2147 | ||
2148 | for (;;) { | |
2149 | while (arg_lines < 0 || n_shown < arg_lines || (arg_follow && !first_line)) { | |
2150 | int flags; | |
2151 | ||
2152 | if (need_seek) { | |
2153 | if (!arg_reverse) | |
2154 | r = sd_journal_next(j); | |
2155 | else | |
2156 | r = sd_journal_previous(j); | |
2157 | if (r < 0) { | |
2158 | log_error_errno(r, "Failed to iterate through journal: %m"); | |
2159 | goto finish; | |
2160 | } | |
2161 | if (r == 0) | |
2162 | break; | |
2163 | } | |
2164 | ||
2165 | if (arg_until_set && !arg_reverse) { | |
2166 | usec_t usec; | |
2167 | ||
2168 | r = sd_journal_get_realtime_usec(j, &usec); | |
2169 | if (r < 0) { | |
2170 | log_error_errno(r, "Failed to determine timestamp: %m"); | |
2171 | goto finish; | |
2172 | } | |
2173 | if (usec > arg_until) | |
2174 | goto finish; | |
2175 | } | |
2176 | ||
2177 | if (arg_since_set && arg_reverse) { | |
2178 | usec_t usec; | |
2179 | ||
2180 | r = sd_journal_get_realtime_usec(j, &usec); | |
2181 | if (r < 0) { | |
2182 | log_error_errno(r, "Failed to determine timestamp: %m"); | |
2183 | goto finish; | |
2184 | } | |
2185 | if (usec < arg_since) | |
2186 | goto finish; | |
2187 | } | |
2188 | ||
2189 | if (!arg_merge && !arg_quiet) { | |
2190 | sd_id128_t boot_id; | |
2191 | ||
2192 | r = sd_journal_get_monotonic_usec(j, NULL, &boot_id); | |
2193 | if (r >= 0) { | |
2194 | if (previous_boot_id_valid && | |
2195 | !sd_id128_equal(boot_id, previous_boot_id)) | |
2196 | printf("%s-- Reboot --%s\n", | |
2197 | ansi_highlight(), ansi_normal()); | |
2198 | ||
2199 | previous_boot_id = boot_id; | |
2200 | previous_boot_id_valid = true; | |
2201 | } | |
2202 | } | |
2203 | ||
2204 | flags = | |
2205 | arg_all * OUTPUT_SHOW_ALL | | |
2206 | arg_full * OUTPUT_FULL_WIDTH | | |
2207 | on_tty() * OUTPUT_COLOR | | |
2208 | arg_catalog * OUTPUT_CATALOG | | |
2209 | arg_utc * OUTPUT_UTC; | |
2210 | ||
2211 | r = output_journal(stdout, j, arg_output, 0, flags, &ellipsized); | |
2212 | need_seek = true; | |
2213 | if (r == -EADDRNOTAVAIL) | |
2214 | break; | |
2215 | else if (r < 0 || ferror(stdout)) | |
2216 | goto finish; | |
2217 | ||
2218 | n_shown++; | |
2219 | } | |
2220 | ||
2221 | if (!arg_follow) { | |
2222 | if (arg_show_cursor) { | |
2223 | _cleanup_free_ char *cursor = NULL; | |
2224 | ||
2225 | r = sd_journal_get_cursor(j, &cursor); | |
2226 | if (r < 0 && r != -EADDRNOTAVAIL) | |
2227 | log_error_errno(r, "Failed to get cursor: %m"); | |
2228 | else if (r >= 0) | |
2229 | printf("-- cursor: %s\n", cursor); | |
2230 | } | |
2231 | ||
2232 | break; | |
2233 | } | |
2234 | ||
2235 | r = sd_journal_wait(j, (uint64_t) -1); | |
2236 | if (r < 0) { | |
2237 | log_error_errno(r, "Couldn't wait for journal event: %m"); | |
2238 | goto finish; | |
2239 | } | |
2240 | ||
2241 | first_line = false; | |
2242 | } | |
2243 | ||
2244 | finish: | |
2245 | pager_close(); | |
2246 | ||
2247 | strv_free(arg_file); | |
2248 | ||
2249 | strv_free(arg_syslog_identifier); | |
2250 | strv_free(arg_system_units); | |
2251 | strv_free(arg_user_units); | |
2252 | ||
2253 | free(arg_root); | |
2254 | ||
2255 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
2256 | } |