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