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87d2c1ff LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
87d2c1ff LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
87d2c1ff | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
87d2c1ff LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <fcntl.h> | |
23 | #include <errno.h> | |
24 | #include <stddef.h> | |
3fbf9cbb LP |
25 | #include <string.h> |
26 | #include <stdio.h> | |
27 | #include <unistd.h> | |
28 | #include <stdlib.h> | |
50f20cfd | 29 | #include <sys/poll.h> |
72f59706 | 30 | #include <time.h> |
0d43c694 | 31 | #include <getopt.h> |
585314e8 | 32 | #include <signal.h> |
50940700 | 33 | #include <sys/stat.h> |
f982e6f7 LP |
34 | #include <sys/ioctl.h> |
35 | #include <linux/fs.h> | |
cf5a3432 LP |
36 | #include <locale.h> |
37 | #include <langinfo.h> | |
87d2c1ff | 38 | |
81527be1 LP |
39 | #include <systemd/sd-journal.h> |
40 | ||
3fbf9cbb | 41 | #include "log.h" |
72f59706 | 42 | #include "util.h" |
e5124088 | 43 | #include "path-util.h" |
0d43c694 LP |
44 | #include "build.h" |
45 | #include "pager.h" | |
86aa7ba4 | 46 | #include "logs-show.h" |
a963990f | 47 | #include "strv.h" |
dca6219e | 48 | #include "journal-internal.h" |
7560fffc | 49 | #include "journal-def.h" |
0284adc6 | 50 | #include "journal-verify.h" |
4da416aa | 51 | #include "journal-authenticate.h" |
f6a971bc | 52 | #include "journal-qrcode.h" |
4da416aa | 53 | #include "fsprg.h" |
c3f60ec5 | 54 | #include "unit-name.h" |
7560fffc | 55 | |
baed47c3 | 56 | #define DEFAULT_FSS_INTERVAL_USEC (15*USEC_PER_MINUTE) |
250d54b5 | 57 | |
df50185b | 58 | static OutputMode arg_output = OUTPUT_SHORT; |
72f59706 LP |
59 | static bool arg_follow = false; |
60 | static bool arg_show_all = false; | |
0d43c694 | 61 | static bool arg_no_pager = false; |
cfbc22ab | 62 | static unsigned arg_lines = 0; |
e91af489 | 63 | static bool arg_no_tail = false; |
43673799 | 64 | static bool arg_quiet = false; |
9e8a535f | 65 | static bool arg_merge = false; |
59cea26a | 66 | static bool arg_this_boot = false; |
8f14c832 | 67 | static const char *arg_cursor = NULL; |
a963990f | 68 | static const char *arg_directory = NULL; |
941e990d | 69 | static int arg_priorities = 0xFF; |
baed47c3 | 70 | static const char *arg_verify_key = NULL; |
feb12d3e | 71 | #ifdef HAVE_GCRYPT |
baed47c3 | 72 | static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC; |
feb12d3e | 73 | #endif |
cfbc22ab LP |
74 | static usec_t arg_since, arg_until; |
75 | static bool arg_since_set = false, arg_until_set = false; | |
c3f60ec5 | 76 | static const char *arg_unit = NULL; |
50f20cfd | 77 | |
7560fffc LP |
78 | static enum { |
79 | ACTION_SHOW, | |
80 | ACTION_NEW_ID128, | |
81 | ACTION_PRINT_HEADER, | |
beec0085 | 82 | ACTION_SETUP_KEYS, |
a1a03e30 LP |
83 | ACTION_VERIFY, |
84 | ACTION_DISK_USAGE, | |
7560fffc LP |
85 | } arg_action = ACTION_SHOW; |
86 | ||
0d43c694 LP |
87 | static int help(void) { |
88 | ||
89834a7c | 89 | printf("%s [OPTIONS...] [MATCH]\n\n" |
df50185b | 90 | "Send control commands to or query the journal.\n\n" |
baed47c3 LP |
91 | " -h --help Show this help\n" |
92 | " --version Show package version\n" | |
cfbc22ab LP |
93 | " -c --cursor=CURSOR Start showing entries from specified cursor\n" |
94 | " --since=DATE Start showing entries newer or of the specified date\n" | |
95 | " --until=DATE Stop showing entries older or of the specified date\n" | |
c3f60ec5 LP |
96 | " -b --this-boot Show data only from current boot\n" |
97 | " -u --unit=UNIT Show data only from the specified unit\n" | |
98 | " -p --priority=RANGE Show only messages within the specified priority range\n\n" | |
baed47c3 | 99 | " -f --follow Follow journal\n" |
1705594f | 100 | " -n --lines[=INTEGER] Number of journal entries to show\n" |
baed47c3 LP |
101 | " --no-tail Show all lines, even in follow mode\n" |
102 | " -o --output=STRING Change journal output mode (short, short-monotonic,\n" | |
48383c25 | 103 | " verbose, export, json, json-pretty, json-sse, cat)\n" |
c3f60ec5 | 104 | " -a --all Show all fields, including long and unprintable\n" |
baed47c3 | 105 | " -q --quiet Don't show privilege warning\n" |
c3f60ec5 | 106 | " --no-pager Do not pipe output into a pager\n" |
9e8a535f | 107 | " -m --merge Show entries from all available journals\n" |
baed47c3 | 108 | " -D --directory=PATH Show journal files from directory\n" |
7560fffc | 109 | "Commands:\n" |
baed47c3 LP |
110 | " --new-id128 Generate a new 128 Bit ID\n" |
111 | " --header Show journal header information\n" | |
a1a03e30 | 112 | " --disk-usage Show total disk usage\n" |
feb12d3e | 113 | #ifdef HAVE_GCRYPT |
baed47c3 LP |
114 | " --setup-keys Generate new FSS key pair\n" |
115 | " --interval=TIME Time interval for changing the FSS sealing key\n" | |
116 | " --verify Verify journal file consistency\n" | |
feb12d3e LP |
117 | " --verify-key=KEY Specify FSS verification key\n" |
118 | #endif | |
119 | , program_invocation_short_name); | |
0d43c694 LP |
120 | |
121 | return 0; | |
122 | } | |
123 | ||
124 | static int parse_argv(int argc, char *argv[]) { | |
125 | ||
126 | enum { | |
127 | ARG_VERSION = 0x100, | |
e91af489 | 128 | ARG_NO_PAGER, |
55ee336c | 129 | ARG_NO_TAIL, |
dca6219e | 130 | ARG_NEW_ID128, |
7560fffc | 131 | ARG_HEADER, |
beec0085 | 132 | ARG_SETUP_KEYS, |
baed47c3 | 133 | ARG_INTERVAL, |
4da416aa | 134 | ARG_VERIFY, |
a1a03e30 | 135 | ARG_VERIFY_KEY, |
cfbc22ab LP |
136 | ARG_DISK_USAGE, |
137 | ARG_SINCE, | |
138 | ARG_UNTIL | |
0d43c694 LP |
139 | }; |
140 | ||
141 | static const struct option options[] = { | |
baed47c3 LP |
142 | { "help", no_argument, NULL, 'h' }, |
143 | { "version" , no_argument, NULL, ARG_VERSION }, | |
144 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
145 | { "follow", no_argument, NULL, 'f' }, | |
146 | { "output", required_argument, NULL, 'o' }, | |
147 | { "all", no_argument, NULL, 'a' }, | |
1705594f | 148 | { "lines", optional_argument, NULL, 'n' }, |
baed47c3 LP |
149 | { "no-tail", no_argument, NULL, ARG_NO_TAIL }, |
150 | { "new-id128", no_argument, NULL, ARG_NEW_ID128 }, | |
151 | { "quiet", no_argument, NULL, 'q' }, | |
9e8a535f | 152 | { "merge", no_argument, NULL, 'm' }, |
baed47c3 LP |
153 | { "this-boot", no_argument, NULL, 'b' }, |
154 | { "directory", required_argument, NULL, 'D' }, | |
155 | { "header", no_argument, NULL, ARG_HEADER }, | |
156 | { "priority", no_argument, NULL, 'p' }, | |
157 | { "setup-keys", no_argument, NULL, ARG_SETUP_KEYS }, | |
158 | { "interval", required_argument, NULL, ARG_INTERVAL }, | |
159 | { "verify", no_argument, NULL, ARG_VERIFY }, | |
160 | { "verify-key", required_argument, NULL, ARG_VERIFY_KEY }, | |
a1a03e30 | 161 | { "disk-usage", no_argument, NULL, ARG_DISK_USAGE }, |
ad9eafab | 162 | { "cursor", required_argument, NULL, 'c' }, |
cfbc22ab LP |
163 | { "since", required_argument, NULL, ARG_SINCE }, |
164 | { "until", required_argument, NULL, ARG_UNTIL }, | |
c3f60ec5 | 165 | { "unit", required_argument, NULL, 'u' }, |
baed47c3 | 166 | { NULL, 0, NULL, 0 } |
0d43c694 LP |
167 | }; |
168 | ||
2100675e | 169 | int c, r; |
0d43c694 LP |
170 | |
171 | assert(argc >= 0); | |
172 | assert(argv); | |
173 | ||
c3f60ec5 | 174 | while ((c = getopt_long(argc, argv, "hfo:an::qmbD:p:c:u:", options, NULL)) >= 0) { |
0d43c694 LP |
175 | |
176 | switch (c) { | |
177 | ||
178 | case 'h': | |
179 | help(); | |
180 | return 0; | |
181 | ||
182 | case ARG_VERSION: | |
183 | puts(PACKAGE_STRING); | |
184 | puts(DISTRIBUTION); | |
185 | puts(SYSTEMD_FEATURES); | |
186 | return 0; | |
187 | ||
188 | case ARG_NO_PAGER: | |
189 | arg_no_pager = true; | |
190 | break; | |
191 | ||
192 | case 'f': | |
193 | arg_follow = true; | |
585314e8 | 194 | signal(SIGWINCH, columns_cache_reset); |
0d43c694 LP |
195 | break; |
196 | ||
197 | case 'o': | |
1705594f | 198 | arg_output = output_mode_from_string(optarg); |
df50185b | 199 | if (arg_output < 0) { |
edfb521a | 200 | log_error("Unknown output format '%s'.", optarg); |
0d43c694 LP |
201 | return -EINVAL; |
202 | } | |
df50185b | 203 | |
edfb521a ZJS |
204 | if (arg_output == OUTPUT_EXPORT || |
205 | arg_output == OUTPUT_JSON || | |
206 | arg_output == OUTPUT_JSON_PRETTY || | |
207 | arg_output == OUTPUT_JSON_SSE || | |
208 | arg_output == OUTPUT_CAT) | |
209 | arg_quiet = true; | |
210 | ||
0d43c694 LP |
211 | break; |
212 | ||
213 | case 'a': | |
214 | arg_show_all = true; | |
215 | break; | |
216 | ||
2100675e | 217 | case 'n': |
1705594f | 218 | if (optarg) { |
cfbc22ab LP |
219 | r = safe_atou(optarg, &arg_lines); |
220 | if (r < 0 || arg_lines <= 0) { | |
1705594f LP |
221 | log_error("Failed to parse lines '%s'", optarg); |
222 | return -EINVAL; | |
223 | } | |
224 | } else | |
225 | arg_lines = 10; | |
226 | ||
2100675e LP |
227 | break; |
228 | ||
e91af489 LP |
229 | case ARG_NO_TAIL: |
230 | arg_no_tail = true; | |
231 | break; | |
232 | ||
39f7f5c1 | 233 | case ARG_NEW_ID128: |
7560fffc | 234 | arg_action = ACTION_NEW_ID128; |
55ee336c LP |
235 | break; |
236 | ||
43673799 LP |
237 | case 'q': |
238 | arg_quiet = true; | |
490e567d | 239 | break; |
43673799 | 240 | |
9e8a535f LP |
241 | case 'm': |
242 | arg_merge = true; | |
2bd3c38a LP |
243 | break; |
244 | ||
59cea26a LP |
245 | case 'b': |
246 | arg_this_boot = true; | |
247 | break; | |
248 | ||
a963990f LP |
249 | case 'D': |
250 | arg_directory = optarg; | |
251 | break; | |
252 | ||
8f14c832 LP |
253 | case 'c': |
254 | arg_cursor = optarg; | |
255 | break; | |
256 | ||
dca6219e | 257 | case ARG_HEADER: |
7560fffc LP |
258 | arg_action = ACTION_PRINT_HEADER; |
259 | break; | |
260 | ||
feb12d3e LP |
261 | case ARG_VERIFY: |
262 | arg_action = ACTION_VERIFY; | |
263 | break; | |
264 | ||
a1a03e30 LP |
265 | case ARG_DISK_USAGE: |
266 | arg_action = ACTION_DISK_USAGE; | |
267 | break; | |
268 | ||
feb12d3e | 269 | #ifdef HAVE_GCRYPT |
7560fffc LP |
270 | case ARG_SETUP_KEYS: |
271 | arg_action = ACTION_SETUP_KEYS; | |
dca6219e LP |
272 | break; |
273 | ||
beec0085 | 274 | |
baed47c3 | 275 | case ARG_VERIFY_KEY: |
4da416aa | 276 | arg_action = ACTION_VERIFY; |
baed47c3 | 277 | arg_verify_key = optarg; |
9e8a535f | 278 | arg_merge = false; |
4da416aa LP |
279 | break; |
280 | ||
baed47c3 LP |
281 | case ARG_INTERVAL: |
282 | r = parse_usec(optarg, &arg_interval); | |
283 | if (r < 0 || arg_interval <= 0) { | |
284 | log_error("Failed to parse sealing key change interval: %s", optarg); | |
14d10188 LP |
285 | return -EINVAL; |
286 | } | |
287 | break; | |
feb12d3e LP |
288 | #else |
289 | case ARG_SETUP_KEYS: | |
290 | case ARG_VERIFY_KEY: | |
291 | case ARG_INTERVAL: | |
292 | log_error("Forward-secure sealing not available."); | |
293 | return -ENOTSUP; | |
294 | #endif | |
14d10188 | 295 | |
941e990d LP |
296 | case 'p': { |
297 | const char *dots; | |
298 | ||
299 | dots = strstr(optarg, ".."); | |
300 | if (dots) { | |
301 | char *a; | |
302 | int from, to, i; | |
303 | ||
304 | /* a range */ | |
305 | a = strndup(optarg, dots - optarg); | |
306 | if (!a) | |
307 | return log_oom(); | |
308 | ||
309 | from = log_level_from_string(a); | |
310 | to = log_level_from_string(dots + 2); | |
311 | free(a); | |
312 | ||
313 | if (from < 0 || to < 0) { | |
314 | log_error("Failed to parse log level range %s", optarg); | |
315 | return -EINVAL; | |
316 | } | |
317 | ||
318 | arg_priorities = 0; | |
319 | ||
320 | if (from < to) { | |
321 | for (i = from; i <= to; i++) | |
322 | arg_priorities |= 1 << i; | |
323 | } else { | |
324 | for (i = to; i <= from; i++) | |
325 | arg_priorities |= 1 << i; | |
326 | } | |
327 | ||
328 | } else { | |
329 | int p, i; | |
330 | ||
331 | p = log_level_from_string(optarg); | |
332 | if (p < 0) { | |
333 | log_error("Unknown log level %s", optarg); | |
334 | return -EINVAL; | |
335 | } | |
336 | ||
337 | arg_priorities = 0; | |
338 | ||
339 | for (i = 0; i <= p; i++) | |
340 | arg_priorities |= 1 << i; | |
341 | } | |
342 | ||
343 | break; | |
344 | } | |
345 | ||
cfbc22ab LP |
346 | case ARG_SINCE: |
347 | r = parse_timestamp(optarg, &arg_since); | |
348 | if (r < 0) { | |
349 | log_error("Failed to parse timestamp: %s", optarg); | |
350 | return -EINVAL; | |
351 | } | |
352 | arg_since_set = true; | |
353 | break; | |
354 | ||
355 | case ARG_UNTIL: | |
356 | r = parse_timestamp(optarg, &arg_until); | |
357 | if (r < 0) { | |
358 | log_error("Failed to parse timestamp: %s", optarg); | |
359 | return -EINVAL; | |
360 | } | |
361 | arg_until_set = true; | |
362 | break; | |
363 | ||
c3f60ec5 LP |
364 | case 'u': |
365 | arg_unit = optarg; | |
366 | break; | |
367 | ||
0d43c694 LP |
368 | case '?': |
369 | return -EINVAL; | |
370 | ||
371 | default: | |
372 | log_error("Unknown option code %c", c); | |
373 | return -EINVAL; | |
374 | } | |
375 | } | |
376 | ||
cfbc22ab | 377 | if (arg_follow && !arg_no_tail && arg_lines <= 0) |
e91af489 LP |
378 | arg_lines = 10; |
379 | ||
cfbc22ab LP |
380 | if (arg_since_set && arg_until_set && arg_since_set > arg_until_set) { |
381 | log_error("--since= must be before --until=."); | |
382 | return -EINVAL; | |
383 | } | |
384 | ||
385 | if (arg_cursor && arg_since_set) { | |
386 | log_error("Please specify either --since= or --cursor=, not both."); | |
387 | return -EINVAL; | |
388 | } | |
389 | ||
0d43c694 LP |
390 | return 1; |
391 | } | |
392 | ||
49826187 LP |
393 | static bool on_tty(void) { |
394 | static int t = -1; | |
395 | ||
396 | /* Note that this is invoked relatively early, before we start | |
397 | * the pager. That means the value we return reflects whether | |
398 | * we originally were started on a tty, not if we currently | |
399 | * are. But this is intended, since we want colour and so on | |
400 | * when run in our own pager. */ | |
401 | ||
402 | if (_unlikely_(t < 0)) | |
403 | t = isatty(STDOUT_FILENO) > 0; | |
404 | ||
405 | return t; | |
406 | } | |
407 | ||
39f7f5c1 | 408 | static int generate_new_id128(void) { |
55ee336c LP |
409 | sd_id128_t id; |
410 | int r; | |
411 | unsigned i; | |
412 | ||
413 | r = sd_id128_randomize(&id); | |
414 | if (r < 0) { | |
415 | log_error("Failed to generate ID: %s", strerror(-r)); | |
416 | return r; | |
417 | } | |
418 | ||
419 | printf("As string:\n" | |
420 | SD_ID128_FORMAT_STR "\n\n" | |
421 | "As UUID:\n" | |
422 | "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n\n" | |
423 | "As macro:\n" | |
424 | "#define MESSAGE_XYZ SD_ID128_MAKE(", | |
425 | SD_ID128_FORMAT_VAL(id), | |
426 | SD_ID128_FORMAT_VAL(id)); | |
427 | ||
428 | for (i = 0; i < 16; i++) | |
429 | printf("%02x%s", id.bytes[i], i != 15 ? "," : ""); | |
430 | ||
431 | fputs(")\n", stdout); | |
432 | ||
433 | return 0; | |
434 | } | |
435 | ||
a963990f LP |
436 | static int add_matches(sd_journal *j, char **args) { |
437 | char **i; | |
438 | int r; | |
59cea26a | 439 | |
a963990f | 440 | assert(j); |
59cea26a | 441 | |
a963990f | 442 | STRV_FOREACH(i, args) { |
59cea26a | 443 | |
cbdca852 LP |
444 | if (streq(*i, "+")) |
445 | r = sd_journal_add_disjunction(j); | |
446 | else if (path_is_absolute(*i)) { | |
b6a34514 | 447 | char *p, *t = NULL; |
e5124088 | 448 | const char *path; |
a963990f | 449 | struct stat st; |
e5124088 | 450 | |
a963990f LP |
451 | p = canonicalize_file_name(*i); |
452 | path = p ? p : *i; | |
e5124088 LP |
453 | |
454 | if (stat(path, &st) < 0) { | |
455 | free(p); | |
456 | log_error("Couldn't stat file: %m"); | |
a963990f | 457 | return -errno; |
e5124088 LP |
458 | } |
459 | ||
b6a34514 | 460 | if (S_ISREG(st.st_mode) && (0111 & st.st_mode)) |
e5124088 | 461 | t = strappend("_EXE=", path); |
b6a34514 LP |
462 | else if (S_ISCHR(st.st_mode)) |
463 | asprintf(&t, "_KERNEL_DEVICE=c%u:%u", major(st.st_rdev), minor(st.st_rdev)); | |
464 | else if (S_ISBLK(st.st_mode)) | |
465 | asprintf(&t, "_KERNEL_DEVICE=b%u:%u", major(st.st_rdev), minor(st.st_rdev)); | |
466 | else { | |
e5124088 | 467 | free(p); |
b6a34514 | 468 | log_error("File is not a device node, regular file or is not executable: %s", *i); |
a963990f | 469 | return -EINVAL; |
50940700 | 470 | } |
e5124088 LP |
471 | |
472 | free(p); | |
b6a34514 LP |
473 | |
474 | if (!t) | |
475 | return log_oom(); | |
476 | ||
477 | r = sd_journal_add_match(j, t, 0); | |
478 | free(t); | |
e5124088 | 479 | } else |
cbdca852 | 480 | r = sd_journal_add_match(j, *i, 0); |
e5124088 | 481 | |
de7b95cd | 482 | if (r < 0) { |
cbdca852 | 483 | log_error("Failed to add match '%s': %s", *i, strerror(-r)); |
a963990f | 484 | return r; |
de7b95cd LP |
485 | } |
486 | } | |
487 | ||
a963990f LP |
488 | return 0; |
489 | } | |
490 | ||
491 | static int add_this_boot(sd_journal *j) { | |
492 | char match[9+32+1] = "_BOOT_ID="; | |
493 | sd_id128_t boot_id; | |
494 | int r; | |
495 | ||
941e990d LP |
496 | assert(j); |
497 | ||
a963990f LP |
498 | if (!arg_this_boot) |
499 | return 0; | |
500 | ||
501 | r = sd_id128_get_boot(&boot_id); | |
502 | if (r < 0) { | |
503 | log_error("Failed to get boot id: %s", strerror(-r)); | |
504 | return r; | |
505 | } | |
506 | ||
507 | sd_id128_to_string(boot_id, match + 9); | |
508 | r = sd_journal_add_match(j, match, strlen(match)); | |
509 | if (r < 0) { | |
510 | log_error("Failed to add match: %s", strerror(-r)); | |
511 | return r; | |
512 | } | |
513 | ||
514 | return 0; | |
515 | } | |
516 | ||
c3f60ec5 LP |
517 | static int add_unit(sd_journal *j) { |
518 | _cleanup_free_ char *m = NULL, *u = NULL; | |
519 | int r; | |
520 | ||
521 | assert(j); | |
522 | ||
523 | if (isempty(arg_unit)) | |
524 | return 0; | |
525 | ||
526 | u = unit_name_mangle(arg_unit); | |
527 | if (!u) | |
528 | return log_oom(); | |
529 | ||
530 | m = strappend("_SYSTEMD_UNIT=", u); | |
531 | if (!m) | |
532 | return log_oom(); | |
533 | ||
534 | r = sd_journal_add_match(j, m, strlen(m)); | |
535 | if (r < 0) { | |
536 | log_error("Failed to add match: %s", strerror(-r)); | |
537 | return r; | |
538 | } | |
539 | ||
540 | return 0; | |
541 | } | |
542 | ||
941e990d LP |
543 | static int add_priorities(sd_journal *j) { |
544 | char match[] = "PRIORITY=0"; | |
545 | int i, r; | |
546 | ||
547 | assert(j); | |
548 | ||
549 | if (arg_priorities == 0xFF) | |
550 | return 0; | |
551 | ||
552 | for (i = LOG_EMERG; i <= LOG_DEBUG; i++) | |
553 | if (arg_priorities & (1 << i)) { | |
554 | match[sizeof(match)-2] = '0' + i; | |
555 | ||
556 | log_info("adding match %s", match); | |
557 | ||
558 | r = sd_journal_add_match(j, match, strlen(match)); | |
559 | if (r < 0) { | |
560 | log_error("Failed to add match: %s", strerror(-r)); | |
561 | return r; | |
562 | } | |
563 | } | |
564 | ||
565 | return 0; | |
566 | } | |
567 | ||
7560fffc LP |
568 | static int setup_keys(void) { |
569 | #ifdef HAVE_GCRYPT | |
570 | size_t mpk_size, seed_size, state_size, i; | |
571 | uint8_t *mpk, *seed, *state; | |
572 | ssize_t l; | |
f982e6f7 | 573 | int fd = -1, r, attr = 0; |
7560fffc LP |
574 | sd_id128_t machine, boot; |
575 | char *p = NULL, *k = NULL; | |
baed47c3 | 576 | struct FSSHeader h; |
14d10188 | 577 | uint64_t n; |
7560fffc LP |
578 | |
579 | r = sd_id128_get_machine(&machine); | |
580 | if (r < 0) { | |
581 | log_error("Failed to get machine ID: %s", strerror(-r)); | |
582 | return r; | |
583 | } | |
584 | ||
585 | r = sd_id128_get_boot(&boot); | |
586 | if (r < 0) { | |
587 | log_error("Failed to get boot ID: %s", strerror(-r)); | |
588 | return r; | |
589 | } | |
590 | ||
baed47c3 | 591 | if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss", |
7560fffc LP |
592 | SD_ID128_FORMAT_VAL(machine)) < 0) |
593 | return log_oom(); | |
594 | ||
595 | if (access(p, F_OK) >= 0) { | |
f7fab8a5 | 596 | log_error("Sealing key file %s exists already.", p); |
7560fffc LP |
597 | r = -EEXIST; |
598 | goto finish; | |
599 | } | |
600 | ||
baed47c3 | 601 | if (asprintf(&k, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss.tmp.XXXXXX", |
7560fffc LP |
602 | SD_ID128_FORMAT_VAL(machine)) < 0) { |
603 | r = log_oom(); | |
604 | goto finish; | |
605 | } | |
606 | ||
607 | mpk_size = FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR); | |
608 | mpk = alloca(mpk_size); | |
609 | ||
610 | seed_size = FSPRG_RECOMMENDED_SEEDLEN; | |
611 | seed = alloca(seed_size); | |
612 | ||
613 | state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR); | |
614 | state = alloca(state_size); | |
615 | ||
616 | fd = open("/dev/random", O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
617 | if (fd < 0) { | |
618 | log_error("Failed to open /dev/random: %m"); | |
619 | r = -errno; | |
620 | goto finish; | |
621 | } | |
622 | ||
623 | log_info("Generating seed..."); | |
624 | l = loop_read(fd, seed, seed_size, true); | |
625 | if (l < 0 || (size_t) l != seed_size) { | |
626 | log_error("Failed to read random seed: %s", strerror(EIO)); | |
627 | r = -EIO; | |
628 | goto finish; | |
629 | } | |
630 | ||
631 | log_info("Generating key pair..."); | |
632 | FSPRG_GenMK(NULL, mpk, seed, seed_size, FSPRG_RECOMMENDED_SECPAR); | |
633 | ||
baed47c3 | 634 | log_info("Generating sealing key..."); |
7560fffc LP |
635 | FSPRG_GenState0(state, mpk, seed, seed_size); |
636 | ||
baed47c3 LP |
637 | assert(arg_interval > 0); |
638 | ||
7560fffc | 639 | n = now(CLOCK_REALTIME); |
baed47c3 | 640 | n /= arg_interval; |
7560fffc LP |
641 | |
642 | close_nointr_nofail(fd); | |
643 | fd = mkostemp(k, O_WRONLY|O_CLOEXEC|O_NOCTTY); | |
644 | if (fd < 0) { | |
645 | log_error("Failed to open %s: %m", k); | |
646 | r = -errno; | |
647 | goto finish; | |
648 | } | |
649 | ||
f982e6f7 LP |
650 | /* Enable secure remove, exclusion from dump, synchronous |
651 | * writing and in-place updating */ | |
652 | if (ioctl(fd, FS_IOC_GETFLAGS, &attr) < 0) | |
653 | log_warning("FS_IOC_GETFLAGS failed: %m"); | |
654 | ||
655 | attr |= FS_SECRM_FL|FS_NODUMP_FL|FS_SYNC_FL|FS_NOCOW_FL; | |
656 | ||
657 | if (ioctl(fd, FS_IOC_SETFLAGS, &attr) < 0) | |
658 | log_warning("FS_IOC_SETFLAGS failed: %m"); | |
659 | ||
7560fffc LP |
660 | zero(h); |
661 | memcpy(h.signature, "KSHHRHLP", 8); | |
662 | h.machine_id = machine; | |
663 | h.boot_id = boot; | |
664 | h.header_size = htole64(sizeof(h)); | |
baed47c3 LP |
665 | h.start_usec = htole64(n * arg_interval); |
666 | h.interval_usec = htole64(arg_interval); | |
667 | h.fsprg_secpar = htole16(FSPRG_RECOMMENDED_SECPAR); | |
668 | h.fsprg_state_size = htole64(state_size); | |
7560fffc LP |
669 | |
670 | l = loop_write(fd, &h, sizeof(h), false); | |
671 | if (l < 0 || (size_t) l != sizeof(h)) { | |
672 | log_error("Failed to write header: %s", strerror(EIO)); | |
673 | r = -EIO; | |
674 | goto finish; | |
675 | } | |
676 | ||
677 | l = loop_write(fd, state, state_size, false); | |
678 | if (l < 0 || (size_t) l != state_size) { | |
679 | log_error("Failed to write state: %s", strerror(EIO)); | |
680 | r = -EIO; | |
681 | goto finish; | |
682 | } | |
683 | ||
684 | if (link(k, p) < 0) { | |
685 | log_error("Failed to link file: %m"); | |
686 | r = -errno; | |
687 | goto finish; | |
688 | } | |
689 | ||
690 | if (isatty(STDOUT_FILENO)) { | |
691 | fprintf(stderr, | |
692 | "\n" | |
baed47c3 | 693 | "The new key pair has been generated. The " ANSI_HIGHLIGHT_ON "secret sealing key" ANSI_HIGHLIGHT_OFF " has been written to\n" |
c05276f2 LP |
694 | "the following local file. This key file is automatically updated when the\n" |
695 | "sealing key is advanced. It should not be used on multiple hosts.\n" | |
7560fffc LP |
696 | "\n" |
697 | "\t%s\n" | |
698 | "\n" | |
baed47c3 LP |
699 | "Please write down the following " ANSI_HIGHLIGHT_ON "secret verification key" ANSI_HIGHLIGHT_OFF ". It should be stored\n" |
700 | "at a safe location and should not be saved locally on disk.\n" | |
7560fffc LP |
701 | "\n\t" ANSI_HIGHLIGHT_RED_ON, p); |
702 | fflush(stderr); | |
703 | } | |
704 | for (i = 0; i < seed_size; i++) { | |
705 | if (i > 0 && i % 3 == 0) | |
706 | putchar('-'); | |
707 | printf("%02x", ((uint8_t*) seed)[i]); | |
708 | } | |
709 | ||
baed47c3 LP |
710 | printf("/%llx-%llx\n", (unsigned long long) n, (unsigned long long) arg_interval); |
711 | ||
712 | if (isatty(STDOUT_FILENO)) { | |
f6a971bc | 713 | char tsb[FORMAT_TIMESPAN_MAX], *hn; |
7560fffc | 714 | |
baed47c3 LP |
715 | fprintf(stderr, |
716 | ANSI_HIGHLIGHT_OFF "\n" | |
717 | "The sealing key is automatically changed every %s.\n", | |
718 | format_timespan(tsb, sizeof(tsb), arg_interval)); | |
f6a971bc LP |
719 | |
720 | hn = gethostname_malloc(); | |
721 | ||
722 | if (hn) { | |
723 | hostname_cleanup(hn); | |
adac1c93 | 724 | fprintf(stderr, "\nThe keys have been generated for host %s/" SD_ID128_FORMAT_STR ".\n", hn, SD_ID128_FORMAT_VAL(machine)); |
f6a971bc | 725 | } else |
adac1c93 | 726 | fprintf(stderr, "\nThe keys have been generated for host " SD_ID128_FORMAT_STR ".\n", SD_ID128_FORMAT_VAL(machine)); |
f6a971bc LP |
727 | |
728 | #ifdef HAVE_QRENCODE | |
cf5a3432 LP |
729 | /* If this is not an UTF-8 system don't print any QR codes */ |
730 | setlocale(LC_CTYPE, ""); | |
731 | ||
732 | if (streq_ptr(nl_langinfo(CODESET), "UTF-8")) { | |
733 | fputs("\nTo transfer the verification key to your phone please scan the QR code below:\n\n", stderr); | |
734 | print_qr_code(stderr, seed, seed_size, n, arg_interval, hn, machine); | |
735 | } | |
f6a971bc LP |
736 | #endif |
737 | free(hn); | |
baed47c3 | 738 | } |
7560fffc LP |
739 | |
740 | r = 0; | |
741 | ||
742 | finish: | |
743 | if (fd >= 0) | |
744 | close_nointr_nofail(fd); | |
745 | ||
746 | if (k) { | |
747 | unlink(k); | |
748 | free(k); | |
749 | } | |
750 | ||
751 | free(p); | |
752 | ||
753 | return r; | |
754 | #else | |
feb12d3e LP |
755 | log_error("Forward-secure sealing not available."); |
756 | return -ENOTSUP; | |
7560fffc LP |
757 | #endif |
758 | } | |
759 | ||
beec0085 LP |
760 | static int verify(sd_journal *j) { |
761 | int r = 0; | |
762 | Iterator i; | |
763 | JournalFile *f; | |
764 | ||
765 | assert(j); | |
766 | ||
cedb42bb LP |
767 | log_show_color(true); |
768 | ||
beec0085 LP |
769 | HASHMAP_FOREACH(f, j->files, i) { |
770 | int k; | |
2a7b539a | 771 | usec_t first, validated, last; |
beec0085 | 772 | |
56e81f7c | 773 | #ifdef HAVE_GCRYPT |
feb12d3e | 774 | if (!arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) |
cedb42bb | 775 | log_notice("Journal file %s has sealing enabled but verification key has not been passed using --verify-key=.", f->path); |
56e81f7c | 776 | #endif |
4da416aa | 777 | |
2a7b539a | 778 | k = journal_file_verify(f, arg_verify_key, &first, &validated, &last, true); |
56e81f7c | 779 | if (k == -EINVAL) { |
baed47c3 | 780 | /* If the key was invalid give up right-away. */ |
56e81f7c LP |
781 | return k; |
782 | } else if (k < 0) { | |
beec0085 | 783 | log_warning("FAIL: %s (%s)", f->path, strerror(-k)); |
56e81f7c | 784 | r = k; |
6c7be122 LP |
785 | } else { |
786 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX], c[FORMAT_TIMESPAN_MAX]; | |
beec0085 | 787 | log_info("PASS: %s", f->path); |
6c7be122 | 788 | |
c0ca7aee | 789 | if (arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) { |
2a7b539a | 790 | if (validated > 0) { |
c0ca7aee | 791 | log_info("=> Validated from %s to %s, final %s entries not sealed.", |
2a7b539a LP |
792 | format_timestamp(a, sizeof(a), first), |
793 | format_timestamp(b, sizeof(b), validated), | |
794 | format_timespan(c, sizeof(c), last > validated ? last - validated : 0)); | |
795 | } else if (last > 0) | |
c0ca7aee | 796 | log_info("=> No sealing yet, %s of entries not sealed.", |
2a7b539a | 797 | format_timespan(c, sizeof(c), last - first)); |
c0ca7aee LP |
798 | else |
799 | log_info("=> No sealing yet, no entries in file."); | |
800 | } | |
6c7be122 | 801 | } |
beec0085 LP |
802 | } |
803 | ||
804 | return r; | |
805 | } | |
806 | ||
a963990f LP |
807 | int main(int argc, char *argv[]) { |
808 | int r; | |
809 | sd_journal *j = NULL; | |
a963990f | 810 | bool need_seek = false; |
14a65d65 LP |
811 | sd_id128_t previous_boot_id; |
812 | bool previous_boot_id_valid = false; | |
92a1fd9e | 813 | bool have_pager; |
cfbc22ab | 814 | unsigned n_shown = 0; |
a963990f LP |
815 | |
816 | log_parse_environment(); | |
817 | log_open(); | |
818 | ||
819 | r = parse_argv(argc, argv); | |
820 | if (r <= 0) | |
821 | goto finish; | |
822 | ||
7560fffc | 823 | if (arg_action == ACTION_NEW_ID128) { |
a963990f LP |
824 | r = generate_new_id128(); |
825 | goto finish; | |
826 | } | |
827 | ||
7560fffc LP |
828 | if (arg_action == ACTION_SETUP_KEYS) { |
829 | r = setup_keys(); | |
830 | goto finish; | |
831 | } | |
832 | ||
a963990f LP |
833 | if (arg_directory) |
834 | r = sd_journal_open_directory(&j, arg_directory, 0); | |
835 | else | |
9e8a535f | 836 | r = sd_journal_open(&j, arg_merge ? 0 : SD_JOURNAL_LOCAL_ONLY); |
a963990f LP |
837 | |
838 | if (r < 0) { | |
839 | log_error("Failed to open journal: %s", strerror(-r)); | |
840 | goto finish; | |
841 | } | |
842 | ||
beec0085 LP |
843 | if (arg_action == ACTION_VERIFY) { |
844 | r = verify(j); | |
845 | goto finish; | |
846 | } | |
847 | ||
7560fffc | 848 | if (arg_action == ACTION_PRINT_HEADER) { |
dca6219e LP |
849 | journal_print_header(j); |
850 | r = 0; | |
851 | goto finish; | |
852 | } | |
853 | ||
a1a03e30 LP |
854 | if (arg_action == ACTION_DISK_USAGE) { |
855 | uint64_t bytes; | |
856 | char sbytes[FORMAT_BYTES_MAX]; | |
857 | ||
858 | r = sd_journal_get_usage(j, &bytes); | |
859 | if (r < 0) | |
860 | goto finish; | |
861 | ||
862 | printf("Journals take up %s on disk.\n", format_bytes(sbytes, sizeof(sbytes), bytes)); | |
863 | r = 0; | |
864 | goto finish; | |
865 | } | |
866 | ||
beec0085 | 867 | #ifdef HAVE_ACL |
99add6fd LP |
868 | if (access("/var/log/journal", F_OK) < 0 && geteuid() != 0 && in_group("adm") <= 0) { |
869 | log_error("Unprivileged users can't see messages unless persistent log storage is enabled. Users in the group 'adm' can always see messages."); | |
870 | r = -EACCES; | |
871 | goto finish; | |
872 | } | |
873 | ||
beec0085 | 874 | if (!arg_quiet && geteuid() != 0 && in_group("adm") <= 0) |
99add6fd LP |
875 | log_warning("Showing user generated messages only. Users in the group 'adm' can see all messages. Pass -q to turn this notice off."); |
876 | #else | |
877 | if (geteuid() != 0 && in_group("adm") <= 0) { | |
878 | log_error("No access to messages. Only users in the group 'adm' can see messages."); | |
879 | r = -EACCES; | |
880 | goto finish; | |
881 | } | |
beec0085 LP |
882 | #endif |
883 | ||
a963990f LP |
884 | r = add_this_boot(j); |
885 | if (r < 0) | |
886 | goto finish; | |
887 | ||
c3f60ec5 LP |
888 | r = add_unit(j); |
889 | if (r < 0) | |
890 | goto finish; | |
891 | ||
a963990f LP |
892 | r = add_matches(j, argv + optind); |
893 | if (r < 0) | |
894 | goto finish; | |
895 | ||
941e990d LP |
896 | r = add_priorities(j); |
897 | if (r < 0) | |
898 | goto finish; | |
899 | ||
cfbc22ab LP |
900 | if (arg_cursor) { |
901 | r = sd_journal_seek_cursor(j, arg_cursor); | |
08984293 | 902 | if (r < 0) { |
cfbc22ab | 903 | log_error("Failed to seek to cursor: %s", strerror(-r)); |
08984293 LP |
904 | goto finish; |
905 | } | |
906 | ||
cfbc22ab | 907 | r = sd_journal_next(j); |
08984293 | 908 | |
cfbc22ab LP |
909 | } else if (arg_since_set) { |
910 | r = sd_journal_seek_realtime_usec(j, arg_since); | |
8f14c832 | 911 | if (r < 0) { |
cfbc22ab | 912 | log_error("Failed to seek to date: %s", strerror(-r)); |
8f14c832 LP |
913 | goto finish; |
914 | } | |
8f14c832 LP |
915 | r = sd_journal_next(j); |
916 | ||
cfbc22ab | 917 | } else if (arg_lines > 0) { |
2100675e LP |
918 | r = sd_journal_seek_tail(j); |
919 | if (r < 0) { | |
920 | log_error("Failed to seek to tail: %s", strerror(-r)); | |
921 | goto finish; | |
922 | } | |
923 | ||
924 | r = sd_journal_previous_skip(j, arg_lines); | |
8f14c832 | 925 | |
2100675e LP |
926 | } else { |
927 | r = sd_journal_seek_head(j); | |
928 | if (r < 0) { | |
929 | log_error("Failed to seek to head: %s", strerror(-r)); | |
930 | goto finish; | |
931 | } | |
6f003b43 LP |
932 | |
933 | r = sd_journal_next(j); | |
934 | } | |
935 | ||
936 | if (r < 0) { | |
937 | log_error("Failed to iterate through journal: %s", strerror(-r)); | |
938 | goto finish; | |
50f20cfd | 939 | } |
87d2c1ff | 940 | |
49826187 | 941 | on_tty(); |
fafb6ecc | 942 | have_pager = !arg_no_pager && !arg_follow && pager_open(); |
0d43c694 | 943 | |
cfbc22ab LP |
944 | if (!arg_quiet) { |
945 | usec_t start, end; | |
946 | char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX]; | |
947 | ||
948 | r = sd_journal_get_cutoff_realtime_usec(j, &start, &end); | |
949 | if (r < 0) { | |
950 | log_error("Failed to get cutoff: %s", strerror(-r)); | |
951 | goto finish; | |
952 | } | |
953 | ||
954 | if (r > 0) { | |
955 | if (arg_follow) | |
9048b11f LP |
956 | printf("-- Logs begin at %s. --\n", |
957 | format_timestamp(start_buf, sizeof(start_buf), start)); | |
cfbc22ab | 958 | else |
9048b11f | 959 | printf("-- Logs begin at %s, end at %s. --\n", |
cfbc22ab LP |
960 | format_timestamp(start_buf, sizeof(start_buf), start), |
961 | format_timestamp(end_buf, sizeof(end_buf), end)); | |
962 | } | |
963 | } | |
964 | ||
50f20cfd | 965 | for (;;) { |
c3eba2ab | 966 | while (arg_lines == 0 || arg_follow || n_shown < arg_lines) { |
cfbc22ab LP |
967 | int flags; |
968 | ||
6f003b43 LP |
969 | if (need_seek) { |
970 | r = sd_journal_next(j); | |
971 | if (r < 0) { | |
972 | log_error("Failed to iterate through journal: %s", strerror(-r)); | |
973 | goto finish; | |
974 | } | |
0d43c694 LP |
975 | } |
976 | ||
977 | if (r == 0) | |
978 | break; | |
979 | ||
cfbc22ab LP |
980 | if (arg_until_set) { |
981 | usec_t usec; | |
982 | ||
983 | r = sd_journal_get_realtime_usec(j, &usec); | |
984 | if (r < 0) { | |
985 | log_error("Failed to determine timestamp: %s", strerror(-r)); | |
986 | goto finish; | |
987 | } | |
988 | } | |
989 | ||
cd931c0a LP |
990 | if (!arg_merge) { |
991 | sd_id128_t boot_id; | |
14a65d65 | 992 | |
cd931c0a LP |
993 | r = sd_journal_get_monotonic_usec(j, NULL, &boot_id); |
994 | if (r >= 0) { | |
995 | if (previous_boot_id_valid && | |
996 | !sd_id128_equal(boot_id, previous_boot_id)) | |
9048b11f | 997 | printf(ANSI_HIGHLIGHT_ON "-- Reboot --" ANSI_HIGHLIGHT_OFF "\n"); |
cd931c0a LP |
998 | |
999 | previous_boot_id = boot_id; | |
1000 | previous_boot_id_valid = true; | |
1001 | } | |
14a65d65 LP |
1002 | } |
1003 | ||
cfbc22ab LP |
1004 | flags = |
1005 | arg_show_all * OUTPUT_SHOW_ALL | | |
1006 | have_pager * OUTPUT_FULL_WIDTH | | |
1007 | on_tty() * OUTPUT_COLOR; | |
1008 | ||
08ace05b | 1009 | r = output_journal(stdout, j, arg_output, 0, flags); |
72f59706 LP |
1010 | if (r < 0) |
1011 | goto finish; | |
6f003b43 LP |
1012 | |
1013 | need_seek = true; | |
cfbc22ab | 1014 | n_shown++; |
87d2c1ff LP |
1015 | } |
1016 | ||
50f20cfd LP |
1017 | if (!arg_follow) |
1018 | break; | |
1019 | ||
e02d1cf7 | 1020 | r = sd_journal_wait(j, (uint64_t) -1); |
50f20cfd | 1021 | if (r < 0) { |
7a69007a | 1022 | log_error("Couldn't wait for journal event: %s", strerror(-r)); |
50f20cfd LP |
1023 | goto finish; |
1024 | } | |
de190aef | 1025 | } |
87d2c1ff LP |
1026 | |
1027 | finish: | |
3fbf9cbb LP |
1028 | if (j) |
1029 | sd_journal_close(j); | |
87d2c1ff | 1030 | |
0d43c694 LP |
1031 | pager_close(); |
1032 | ||
3fbf9cbb | 1033 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
87d2c1ff | 1034 | } |