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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> |
50940700 | 32 | #include <sys/stat.h> |
f982e6f7 LP |
33 | #include <sys/ioctl.h> |
34 | #include <linux/fs.h> | |
87d2c1ff | 35 | |
81527be1 LP |
36 | #include <systemd/sd-journal.h> |
37 | ||
3fbf9cbb | 38 | #include "log.h" |
72f59706 | 39 | #include "util.h" |
e5124088 | 40 | #include "path-util.h" |
0d43c694 LP |
41 | #include "build.h" |
42 | #include "pager.h" | |
86aa7ba4 | 43 | #include "logs-show.h" |
a963990f | 44 | #include "strv.h" |
dca6219e | 45 | #include "journal-internal.h" |
7560fffc | 46 | #include "journal-def.h" |
0284adc6 | 47 | #include "journal-verify.h" |
4da416aa | 48 | #include "journal-authenticate.h" |
f6a971bc | 49 | #include "journal-qrcode.h" |
4da416aa | 50 | #include "fsprg.h" |
7560fffc | 51 | |
baed47c3 | 52 | #define DEFAULT_FSS_INTERVAL_USEC (15*USEC_PER_MINUTE) |
250d54b5 | 53 | |
df50185b | 54 | static OutputMode arg_output = OUTPUT_SHORT; |
72f59706 LP |
55 | static bool arg_follow = false; |
56 | static bool arg_show_all = false; | |
0d43c694 | 57 | static bool arg_no_pager = false; |
2100675e | 58 | static int arg_lines = -1; |
e91af489 | 59 | static bool arg_no_tail = false; |
43673799 | 60 | static bool arg_quiet = false; |
9e8a535f | 61 | static bool arg_merge = false; |
59cea26a | 62 | static bool arg_this_boot = false; |
a963990f | 63 | static const char *arg_directory = NULL; |
941e990d | 64 | static int arg_priorities = 0xFF; |
baed47c3 | 65 | static const char *arg_verify_key = NULL; |
feb12d3e | 66 | #ifdef HAVE_GCRYPT |
baed47c3 | 67 | static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC; |
feb12d3e | 68 | #endif |
50f20cfd | 69 | |
7560fffc LP |
70 | static enum { |
71 | ACTION_SHOW, | |
72 | ACTION_NEW_ID128, | |
73 | ACTION_PRINT_HEADER, | |
beec0085 LP |
74 | ACTION_SETUP_KEYS, |
75 | ACTION_VERIFY | |
7560fffc LP |
76 | } arg_action = ACTION_SHOW; |
77 | ||
0d43c694 LP |
78 | static int help(void) { |
79 | ||
89834a7c | 80 | printf("%s [OPTIONS...] [MATCH]\n\n" |
df50185b | 81 | "Send control commands to or query the journal.\n\n" |
baed47c3 LP |
82 | " -h --help Show this help\n" |
83 | " --version Show package version\n" | |
84 | " --no-pager Do not pipe output into a pager\n" | |
85 | " -a --all Show all fields, including long and unprintable\n" | |
86 | " -f --follow Follow journal\n" | |
87 | " -n --lines=INTEGER Journal entries to show\n" | |
88 | " --no-tail Show all lines, even in follow mode\n" | |
89 | " -o --output=STRING Change journal output mode (short, short-monotonic,\n" | |
a6e87e90 | 90 | " verbose, export, json, json-pretty, cat)\n" |
baed47c3 | 91 | " -q --quiet Don't show privilege warning\n" |
9e8a535f | 92 | " -m --merge Show entries from all available journals\n" |
baed47c3 LP |
93 | " -b --this-boot Show data only from current boot\n" |
94 | " -D --directory=PATH Show journal files from directory\n" | |
95 | " -p --priority=RANGE Show only messages within the specified priority range\n\n" | |
7560fffc | 96 | "Commands:\n" |
baed47c3 LP |
97 | " --new-id128 Generate a new 128 Bit ID\n" |
98 | " --header Show journal header information\n" | |
feb12d3e | 99 | #ifdef HAVE_GCRYPT |
baed47c3 LP |
100 | " --setup-keys Generate new FSS key pair\n" |
101 | " --interval=TIME Time interval for changing the FSS sealing key\n" | |
102 | " --verify Verify journal file consistency\n" | |
feb12d3e LP |
103 | " --verify-key=KEY Specify FSS verification key\n" |
104 | #endif | |
105 | , program_invocation_short_name); | |
0d43c694 LP |
106 | |
107 | return 0; | |
108 | } | |
109 | ||
110 | static int parse_argv(int argc, char *argv[]) { | |
111 | ||
112 | enum { | |
113 | ARG_VERSION = 0x100, | |
e91af489 | 114 | ARG_NO_PAGER, |
55ee336c | 115 | ARG_NO_TAIL, |
dca6219e | 116 | ARG_NEW_ID128, |
7560fffc | 117 | ARG_HEADER, |
beec0085 | 118 | ARG_SETUP_KEYS, |
baed47c3 | 119 | ARG_INTERVAL, |
4da416aa | 120 | ARG_VERIFY, |
baed47c3 | 121 | ARG_VERIFY_KEY |
0d43c694 LP |
122 | }; |
123 | ||
124 | static const struct option options[] = { | |
baed47c3 LP |
125 | { "help", no_argument, NULL, 'h' }, |
126 | { "version" , no_argument, NULL, ARG_VERSION }, | |
127 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
128 | { "follow", no_argument, NULL, 'f' }, | |
129 | { "output", required_argument, NULL, 'o' }, | |
130 | { "all", no_argument, NULL, 'a' }, | |
131 | { "lines", required_argument, NULL, 'n' }, | |
132 | { "no-tail", no_argument, NULL, ARG_NO_TAIL }, | |
133 | { "new-id128", no_argument, NULL, ARG_NEW_ID128 }, | |
134 | { "quiet", no_argument, NULL, 'q' }, | |
9e8a535f | 135 | { "merge", no_argument, NULL, 'm' }, |
baed47c3 LP |
136 | { "this-boot", no_argument, NULL, 'b' }, |
137 | { "directory", required_argument, NULL, 'D' }, | |
138 | { "header", no_argument, NULL, ARG_HEADER }, | |
139 | { "priority", no_argument, NULL, 'p' }, | |
140 | { "setup-keys", no_argument, NULL, ARG_SETUP_KEYS }, | |
141 | { "interval", required_argument, NULL, ARG_INTERVAL }, | |
142 | { "verify", no_argument, NULL, ARG_VERIFY }, | |
143 | { "verify-key", required_argument, NULL, ARG_VERIFY_KEY }, | |
144 | { NULL, 0, NULL, 0 } | |
0d43c694 LP |
145 | }; |
146 | ||
2100675e | 147 | int c, r; |
0d43c694 LP |
148 | |
149 | assert(argc >= 0); | |
150 | assert(argv); | |
151 | ||
9e8a535f | 152 | while ((c = getopt_long(argc, argv, "hfo:an:qmbD:p:", options, NULL)) >= 0) { |
0d43c694 LP |
153 | |
154 | switch (c) { | |
155 | ||
156 | case 'h': | |
157 | help(); | |
158 | return 0; | |
159 | ||
160 | case ARG_VERSION: | |
161 | puts(PACKAGE_STRING); | |
162 | puts(DISTRIBUTION); | |
163 | puts(SYSTEMD_FEATURES); | |
164 | return 0; | |
165 | ||
166 | case ARG_NO_PAGER: | |
167 | arg_no_pager = true; | |
168 | break; | |
169 | ||
170 | case 'f': | |
171 | arg_follow = true; | |
172 | break; | |
173 | ||
174 | case 'o': | |
df50185b LP |
175 | arg_output = output_mode_from_string(optarg); |
176 | if (arg_output < 0) { | |
0d43c694 LP |
177 | log_error("Unknown output '%s'.", optarg); |
178 | return -EINVAL; | |
179 | } | |
df50185b | 180 | |
0d43c694 LP |
181 | break; |
182 | ||
183 | case 'a': | |
184 | arg_show_all = true; | |
185 | break; | |
186 | ||
2100675e LP |
187 | case 'n': |
188 | r = safe_atoi(optarg, &arg_lines); | |
e91af489 | 189 | if (r < 0 || arg_lines < 0) { |
2100675e LP |
190 | log_error("Failed to parse lines '%s'", optarg); |
191 | return -EINVAL; | |
192 | } | |
193 | break; | |
194 | ||
e91af489 LP |
195 | case ARG_NO_TAIL: |
196 | arg_no_tail = true; | |
197 | break; | |
198 | ||
39f7f5c1 | 199 | case ARG_NEW_ID128: |
7560fffc | 200 | arg_action = ACTION_NEW_ID128; |
55ee336c LP |
201 | break; |
202 | ||
43673799 LP |
203 | case 'q': |
204 | arg_quiet = true; | |
490e567d | 205 | break; |
43673799 | 206 | |
9e8a535f LP |
207 | case 'm': |
208 | arg_merge = true; | |
2bd3c38a LP |
209 | break; |
210 | ||
59cea26a LP |
211 | case 'b': |
212 | arg_this_boot = true; | |
213 | break; | |
214 | ||
a963990f LP |
215 | case 'D': |
216 | arg_directory = optarg; | |
217 | break; | |
218 | ||
dca6219e | 219 | case ARG_HEADER: |
7560fffc LP |
220 | arg_action = ACTION_PRINT_HEADER; |
221 | break; | |
222 | ||
feb12d3e LP |
223 | case ARG_VERIFY: |
224 | arg_action = ACTION_VERIFY; | |
225 | break; | |
226 | ||
227 | #ifdef HAVE_GCRYPT | |
7560fffc LP |
228 | case ARG_SETUP_KEYS: |
229 | arg_action = ACTION_SETUP_KEYS; | |
dca6219e LP |
230 | break; |
231 | ||
beec0085 | 232 | |
baed47c3 | 233 | case ARG_VERIFY_KEY: |
4da416aa | 234 | arg_action = ACTION_VERIFY; |
baed47c3 | 235 | arg_verify_key = optarg; |
9e8a535f | 236 | arg_merge = false; |
4da416aa LP |
237 | break; |
238 | ||
baed47c3 LP |
239 | case ARG_INTERVAL: |
240 | r = parse_usec(optarg, &arg_interval); | |
241 | if (r < 0 || arg_interval <= 0) { | |
242 | log_error("Failed to parse sealing key change interval: %s", optarg); | |
14d10188 LP |
243 | return -EINVAL; |
244 | } | |
245 | break; | |
feb12d3e LP |
246 | #else |
247 | case ARG_SETUP_KEYS: | |
248 | case ARG_VERIFY_KEY: | |
249 | case ARG_INTERVAL: | |
250 | log_error("Forward-secure sealing not available."); | |
251 | return -ENOTSUP; | |
252 | #endif | |
14d10188 | 253 | |
941e990d LP |
254 | case 'p': { |
255 | const char *dots; | |
256 | ||
257 | dots = strstr(optarg, ".."); | |
258 | if (dots) { | |
259 | char *a; | |
260 | int from, to, i; | |
261 | ||
262 | /* a range */ | |
263 | a = strndup(optarg, dots - optarg); | |
264 | if (!a) | |
265 | return log_oom(); | |
266 | ||
267 | from = log_level_from_string(a); | |
268 | to = log_level_from_string(dots + 2); | |
269 | free(a); | |
270 | ||
271 | if (from < 0 || to < 0) { | |
272 | log_error("Failed to parse log level range %s", optarg); | |
273 | return -EINVAL; | |
274 | } | |
275 | ||
276 | arg_priorities = 0; | |
277 | ||
278 | if (from < to) { | |
279 | for (i = from; i <= to; i++) | |
280 | arg_priorities |= 1 << i; | |
281 | } else { | |
282 | for (i = to; i <= from; i++) | |
283 | arg_priorities |= 1 << i; | |
284 | } | |
285 | ||
286 | } else { | |
287 | int p, i; | |
288 | ||
289 | p = log_level_from_string(optarg); | |
290 | if (p < 0) { | |
291 | log_error("Unknown log level %s", optarg); | |
292 | return -EINVAL; | |
293 | } | |
294 | ||
295 | arg_priorities = 0; | |
296 | ||
297 | for (i = 0; i <= p; i++) | |
298 | arg_priorities |= 1 << i; | |
299 | } | |
300 | ||
301 | break; | |
302 | } | |
303 | ||
0d43c694 LP |
304 | case '?': |
305 | return -EINVAL; | |
306 | ||
307 | default: | |
308 | log_error("Unknown option code %c", c); | |
309 | return -EINVAL; | |
310 | } | |
311 | } | |
312 | ||
62f21ec9 | 313 | if (arg_follow && !arg_no_tail && arg_lines < 0) |
e91af489 LP |
314 | arg_lines = 10; |
315 | ||
0d43c694 LP |
316 | return 1; |
317 | } | |
318 | ||
49826187 LP |
319 | static bool on_tty(void) { |
320 | static int t = -1; | |
321 | ||
322 | /* Note that this is invoked relatively early, before we start | |
323 | * the pager. That means the value we return reflects whether | |
324 | * we originally were started on a tty, not if we currently | |
325 | * are. But this is intended, since we want colour and so on | |
326 | * when run in our own pager. */ | |
327 | ||
328 | if (_unlikely_(t < 0)) | |
329 | t = isatty(STDOUT_FILENO) > 0; | |
330 | ||
331 | return t; | |
332 | } | |
333 | ||
39f7f5c1 | 334 | static int generate_new_id128(void) { |
55ee336c LP |
335 | sd_id128_t id; |
336 | int r; | |
337 | unsigned i; | |
338 | ||
339 | r = sd_id128_randomize(&id); | |
340 | if (r < 0) { | |
341 | log_error("Failed to generate ID: %s", strerror(-r)); | |
342 | return r; | |
343 | } | |
344 | ||
345 | printf("As string:\n" | |
346 | SD_ID128_FORMAT_STR "\n\n" | |
347 | "As UUID:\n" | |
348 | "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n\n" | |
349 | "As macro:\n" | |
350 | "#define MESSAGE_XYZ SD_ID128_MAKE(", | |
351 | SD_ID128_FORMAT_VAL(id), | |
352 | SD_ID128_FORMAT_VAL(id)); | |
353 | ||
354 | for (i = 0; i < 16; i++) | |
355 | printf("%02x%s", id.bytes[i], i != 15 ? "," : ""); | |
356 | ||
357 | fputs(")\n", stdout); | |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
a963990f LP |
362 | static int add_matches(sd_journal *j, char **args) { |
363 | char **i; | |
364 | int r; | |
59cea26a | 365 | |
a963990f | 366 | assert(j); |
59cea26a | 367 | |
a963990f | 368 | STRV_FOREACH(i, args) { |
59cea26a | 369 | |
cbdca852 LP |
370 | if (streq(*i, "+")) |
371 | r = sd_journal_add_disjunction(j); | |
372 | else if (path_is_absolute(*i)) { | |
b6a34514 | 373 | char *p, *t = NULL; |
e5124088 | 374 | const char *path; |
a963990f | 375 | struct stat st; |
e5124088 | 376 | |
a963990f LP |
377 | p = canonicalize_file_name(*i); |
378 | path = p ? p : *i; | |
e5124088 LP |
379 | |
380 | if (stat(path, &st) < 0) { | |
381 | free(p); | |
382 | log_error("Couldn't stat file: %m"); | |
a963990f | 383 | return -errno; |
e5124088 LP |
384 | } |
385 | ||
b6a34514 | 386 | if (S_ISREG(st.st_mode) && (0111 & st.st_mode)) |
e5124088 | 387 | t = strappend("_EXE=", path); |
b6a34514 LP |
388 | else if (S_ISCHR(st.st_mode)) |
389 | asprintf(&t, "_KERNEL_DEVICE=c%u:%u", major(st.st_rdev), minor(st.st_rdev)); | |
390 | else if (S_ISBLK(st.st_mode)) | |
391 | asprintf(&t, "_KERNEL_DEVICE=b%u:%u", major(st.st_rdev), minor(st.st_rdev)); | |
392 | else { | |
e5124088 | 393 | free(p); |
b6a34514 | 394 | log_error("File is not a device node, regular file or is not executable: %s", *i); |
a963990f | 395 | return -EINVAL; |
50940700 | 396 | } |
e5124088 LP |
397 | |
398 | free(p); | |
b6a34514 LP |
399 | |
400 | if (!t) | |
401 | return log_oom(); | |
402 | ||
403 | r = sd_journal_add_match(j, t, 0); | |
404 | free(t); | |
e5124088 | 405 | } else |
cbdca852 | 406 | r = sd_journal_add_match(j, *i, 0); |
e5124088 | 407 | |
de7b95cd | 408 | if (r < 0) { |
cbdca852 | 409 | log_error("Failed to add match '%s': %s", *i, strerror(-r)); |
a963990f | 410 | return r; |
de7b95cd LP |
411 | } |
412 | } | |
413 | ||
a963990f LP |
414 | return 0; |
415 | } | |
416 | ||
417 | static int add_this_boot(sd_journal *j) { | |
418 | char match[9+32+1] = "_BOOT_ID="; | |
419 | sd_id128_t boot_id; | |
420 | int r; | |
421 | ||
941e990d LP |
422 | assert(j); |
423 | ||
a963990f LP |
424 | if (!arg_this_boot) |
425 | return 0; | |
426 | ||
427 | r = sd_id128_get_boot(&boot_id); | |
428 | if (r < 0) { | |
429 | log_error("Failed to get boot id: %s", strerror(-r)); | |
430 | return r; | |
431 | } | |
432 | ||
433 | sd_id128_to_string(boot_id, match + 9); | |
434 | r = sd_journal_add_match(j, match, strlen(match)); | |
435 | if (r < 0) { | |
436 | log_error("Failed to add match: %s", strerror(-r)); | |
437 | return r; | |
438 | } | |
439 | ||
440 | return 0; | |
441 | } | |
442 | ||
941e990d LP |
443 | static int add_priorities(sd_journal *j) { |
444 | char match[] = "PRIORITY=0"; | |
445 | int i, r; | |
446 | ||
447 | assert(j); | |
448 | ||
449 | if (arg_priorities == 0xFF) | |
450 | return 0; | |
451 | ||
452 | for (i = LOG_EMERG; i <= LOG_DEBUG; i++) | |
453 | if (arg_priorities & (1 << i)) { | |
454 | match[sizeof(match)-2] = '0' + i; | |
455 | ||
456 | log_info("adding match %s", match); | |
457 | ||
458 | r = sd_journal_add_match(j, match, strlen(match)); | |
459 | if (r < 0) { | |
460 | log_error("Failed to add match: %s", strerror(-r)); | |
461 | return r; | |
462 | } | |
463 | } | |
464 | ||
465 | return 0; | |
466 | } | |
467 | ||
7560fffc LP |
468 | static int setup_keys(void) { |
469 | #ifdef HAVE_GCRYPT | |
470 | size_t mpk_size, seed_size, state_size, i; | |
471 | uint8_t *mpk, *seed, *state; | |
472 | ssize_t l; | |
f982e6f7 | 473 | int fd = -1, r, attr = 0; |
7560fffc LP |
474 | sd_id128_t machine, boot; |
475 | char *p = NULL, *k = NULL; | |
baed47c3 | 476 | struct FSSHeader h; |
14d10188 | 477 | uint64_t n; |
7560fffc LP |
478 | |
479 | r = sd_id128_get_machine(&machine); | |
480 | if (r < 0) { | |
481 | log_error("Failed to get machine ID: %s", strerror(-r)); | |
482 | return r; | |
483 | } | |
484 | ||
485 | r = sd_id128_get_boot(&boot); | |
486 | if (r < 0) { | |
487 | log_error("Failed to get boot ID: %s", strerror(-r)); | |
488 | return r; | |
489 | } | |
490 | ||
baed47c3 | 491 | if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss", |
7560fffc LP |
492 | SD_ID128_FORMAT_VAL(machine)) < 0) |
493 | return log_oom(); | |
494 | ||
495 | if (access(p, F_OK) >= 0) { | |
f7fab8a5 | 496 | log_error("Sealing key file %s exists already.", p); |
7560fffc LP |
497 | r = -EEXIST; |
498 | goto finish; | |
499 | } | |
500 | ||
baed47c3 | 501 | if (asprintf(&k, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss.tmp.XXXXXX", |
7560fffc LP |
502 | SD_ID128_FORMAT_VAL(machine)) < 0) { |
503 | r = log_oom(); | |
504 | goto finish; | |
505 | } | |
506 | ||
507 | mpk_size = FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR); | |
508 | mpk = alloca(mpk_size); | |
509 | ||
510 | seed_size = FSPRG_RECOMMENDED_SEEDLEN; | |
511 | seed = alloca(seed_size); | |
512 | ||
513 | state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR); | |
514 | state = alloca(state_size); | |
515 | ||
516 | fd = open("/dev/random", O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
517 | if (fd < 0) { | |
518 | log_error("Failed to open /dev/random: %m"); | |
519 | r = -errno; | |
520 | goto finish; | |
521 | } | |
522 | ||
523 | log_info("Generating seed..."); | |
524 | l = loop_read(fd, seed, seed_size, true); | |
525 | if (l < 0 || (size_t) l != seed_size) { | |
526 | log_error("Failed to read random seed: %s", strerror(EIO)); | |
527 | r = -EIO; | |
528 | goto finish; | |
529 | } | |
530 | ||
531 | log_info("Generating key pair..."); | |
532 | FSPRG_GenMK(NULL, mpk, seed, seed_size, FSPRG_RECOMMENDED_SECPAR); | |
533 | ||
baed47c3 | 534 | log_info("Generating sealing key..."); |
7560fffc LP |
535 | FSPRG_GenState0(state, mpk, seed, seed_size); |
536 | ||
baed47c3 LP |
537 | assert(arg_interval > 0); |
538 | ||
7560fffc | 539 | n = now(CLOCK_REALTIME); |
baed47c3 | 540 | n /= arg_interval; |
7560fffc LP |
541 | |
542 | close_nointr_nofail(fd); | |
543 | fd = mkostemp(k, O_WRONLY|O_CLOEXEC|O_NOCTTY); | |
544 | if (fd < 0) { | |
545 | log_error("Failed to open %s: %m", k); | |
546 | r = -errno; | |
547 | goto finish; | |
548 | } | |
549 | ||
f982e6f7 LP |
550 | /* Enable secure remove, exclusion from dump, synchronous |
551 | * writing and in-place updating */ | |
552 | if (ioctl(fd, FS_IOC_GETFLAGS, &attr) < 0) | |
553 | log_warning("FS_IOC_GETFLAGS failed: %m"); | |
554 | ||
555 | attr |= FS_SECRM_FL|FS_NODUMP_FL|FS_SYNC_FL|FS_NOCOW_FL; | |
556 | ||
557 | if (ioctl(fd, FS_IOC_SETFLAGS, &attr) < 0) | |
558 | log_warning("FS_IOC_SETFLAGS failed: %m"); | |
559 | ||
7560fffc LP |
560 | zero(h); |
561 | memcpy(h.signature, "KSHHRHLP", 8); | |
562 | h.machine_id = machine; | |
563 | h.boot_id = boot; | |
564 | h.header_size = htole64(sizeof(h)); | |
baed47c3 LP |
565 | h.start_usec = htole64(n * arg_interval); |
566 | h.interval_usec = htole64(arg_interval); | |
567 | h.fsprg_secpar = htole16(FSPRG_RECOMMENDED_SECPAR); | |
568 | h.fsprg_state_size = htole64(state_size); | |
7560fffc LP |
569 | |
570 | l = loop_write(fd, &h, sizeof(h), false); | |
571 | if (l < 0 || (size_t) l != sizeof(h)) { | |
572 | log_error("Failed to write header: %s", strerror(EIO)); | |
573 | r = -EIO; | |
574 | goto finish; | |
575 | } | |
576 | ||
577 | l = loop_write(fd, state, state_size, false); | |
578 | if (l < 0 || (size_t) l != state_size) { | |
579 | log_error("Failed to write state: %s", strerror(EIO)); | |
580 | r = -EIO; | |
581 | goto finish; | |
582 | } | |
583 | ||
584 | if (link(k, p) < 0) { | |
585 | log_error("Failed to link file: %m"); | |
586 | r = -errno; | |
587 | goto finish; | |
588 | } | |
589 | ||
590 | if (isatty(STDOUT_FILENO)) { | |
591 | fprintf(stderr, | |
592 | "\n" | |
baed47c3 | 593 | "The new key pair has been generated. The " ANSI_HIGHLIGHT_ON "secret sealing key" ANSI_HIGHLIGHT_OFF " has been written to\n" |
c05276f2 LP |
594 | "the following local file. This key file is automatically updated when the\n" |
595 | "sealing key is advanced. It should not be used on multiple hosts.\n" | |
7560fffc LP |
596 | "\n" |
597 | "\t%s\n" | |
598 | "\n" | |
baed47c3 LP |
599 | "Please write down the following " ANSI_HIGHLIGHT_ON "secret verification key" ANSI_HIGHLIGHT_OFF ". It should be stored\n" |
600 | "at a safe location and should not be saved locally on disk.\n" | |
7560fffc LP |
601 | "\n\t" ANSI_HIGHLIGHT_RED_ON, p); |
602 | fflush(stderr); | |
603 | } | |
604 | for (i = 0; i < seed_size; i++) { | |
605 | if (i > 0 && i % 3 == 0) | |
606 | putchar('-'); | |
607 | printf("%02x", ((uint8_t*) seed)[i]); | |
608 | } | |
609 | ||
baed47c3 LP |
610 | printf("/%llx-%llx\n", (unsigned long long) n, (unsigned long long) arg_interval); |
611 | ||
612 | if (isatty(STDOUT_FILENO)) { | |
f6a971bc | 613 | char tsb[FORMAT_TIMESPAN_MAX], *hn; |
7560fffc | 614 | |
baed47c3 LP |
615 | fprintf(stderr, |
616 | ANSI_HIGHLIGHT_OFF "\n" | |
617 | "The sealing key is automatically changed every %s.\n", | |
618 | format_timespan(tsb, sizeof(tsb), arg_interval)); | |
f6a971bc LP |
619 | |
620 | hn = gethostname_malloc(); | |
621 | ||
622 | if (hn) { | |
623 | hostname_cleanup(hn); | |
adac1c93 | 624 | fprintf(stderr, "\nThe keys have been generated for host %s/" SD_ID128_FORMAT_STR ".\n", hn, SD_ID128_FORMAT_VAL(machine)); |
f6a971bc | 625 | } else |
adac1c93 | 626 | fprintf(stderr, "\nThe keys have been generated for host " SD_ID128_FORMAT_STR ".\n", SD_ID128_FORMAT_VAL(machine)); |
f6a971bc LP |
627 | |
628 | #ifdef HAVE_QRENCODE | |
adac1c93 | 629 | fprintf(stderr, "\nTo transfer the verification key to your phone please scan the QR code below:\n\n"); |
f6a971bc LP |
630 | print_qr_code(stderr, seed, seed_size, n, arg_interval, hn, machine); |
631 | #endif | |
632 | free(hn); | |
baed47c3 | 633 | } |
7560fffc LP |
634 | |
635 | r = 0; | |
636 | ||
637 | finish: | |
638 | if (fd >= 0) | |
639 | close_nointr_nofail(fd); | |
640 | ||
641 | if (k) { | |
642 | unlink(k); | |
643 | free(k); | |
644 | } | |
645 | ||
646 | free(p); | |
647 | ||
648 | return r; | |
649 | #else | |
feb12d3e LP |
650 | log_error("Forward-secure sealing not available."); |
651 | return -ENOTSUP; | |
7560fffc LP |
652 | #endif |
653 | } | |
654 | ||
beec0085 LP |
655 | static int verify(sd_journal *j) { |
656 | int r = 0; | |
657 | Iterator i; | |
658 | JournalFile *f; | |
659 | ||
660 | assert(j); | |
661 | ||
cedb42bb LP |
662 | log_show_color(true); |
663 | ||
beec0085 LP |
664 | HASHMAP_FOREACH(f, j->files, i) { |
665 | int k; | |
6c7be122 | 666 | usec_t from, to, total; |
beec0085 | 667 | |
56e81f7c | 668 | #ifdef HAVE_GCRYPT |
feb12d3e | 669 | if (!arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) |
cedb42bb | 670 | log_notice("Journal file %s has sealing enabled but verification key has not been passed using --verify-key=.", f->path); |
56e81f7c | 671 | #endif |
4da416aa | 672 | |
b72631e5 | 673 | k = journal_file_verify(f, arg_verify_key, &from, &to, &total, true); |
56e81f7c | 674 | if (k == -EINVAL) { |
baed47c3 | 675 | /* If the key was invalid give up right-away. */ |
56e81f7c LP |
676 | return k; |
677 | } else if (k < 0) { | |
beec0085 | 678 | log_warning("FAIL: %s (%s)", f->path, strerror(-k)); |
56e81f7c | 679 | r = k; |
6c7be122 LP |
680 | } else { |
681 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX], c[FORMAT_TIMESPAN_MAX]; | |
beec0085 | 682 | log_info("PASS: %s", f->path); |
6c7be122 | 683 | |
c0ca7aee LP |
684 | if (arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) { |
685 | if (from > 0) { | |
686 | log_info("=> Validated from %s to %s, final %s entries not sealed.", | |
687 | format_timestamp(a, sizeof(a), from), | |
688 | format_timestamp(b, sizeof(b), to), | |
689 | format_timespan(c, sizeof(c), total > to ? total - to : 0)); | |
690 | } else if (total > 0) | |
691 | log_info("=> No sealing yet, %s of entries not sealed.", | |
692 | format_timespan(c, sizeof(c), total)); | |
693 | else | |
694 | log_info("=> No sealing yet, no entries in file."); | |
695 | } | |
6c7be122 | 696 | } |
beec0085 LP |
697 | } |
698 | ||
699 | return r; | |
700 | } | |
701 | ||
a963990f LP |
702 | int main(int argc, char *argv[]) { |
703 | int r; | |
704 | sd_journal *j = NULL; | |
705 | unsigned line = 0; | |
706 | bool need_seek = false; | |
14a65d65 LP |
707 | sd_id128_t previous_boot_id; |
708 | bool previous_boot_id_valid = false; | |
92a1fd9e | 709 | bool have_pager; |
a963990f LP |
710 | |
711 | log_parse_environment(); | |
712 | log_open(); | |
713 | ||
714 | r = parse_argv(argc, argv); | |
715 | if (r <= 0) | |
716 | goto finish; | |
717 | ||
7560fffc | 718 | if (arg_action == ACTION_NEW_ID128) { |
a963990f LP |
719 | r = generate_new_id128(); |
720 | goto finish; | |
721 | } | |
722 | ||
7560fffc LP |
723 | if (arg_action == ACTION_SETUP_KEYS) { |
724 | r = setup_keys(); | |
725 | goto finish; | |
726 | } | |
727 | ||
a963990f LP |
728 | if (arg_directory) |
729 | r = sd_journal_open_directory(&j, arg_directory, 0); | |
730 | else | |
9e8a535f | 731 | r = sd_journal_open(&j, arg_merge ? 0 : SD_JOURNAL_LOCAL_ONLY); |
a963990f LP |
732 | |
733 | if (r < 0) { | |
734 | log_error("Failed to open journal: %s", strerror(-r)); | |
735 | goto finish; | |
736 | } | |
737 | ||
beec0085 LP |
738 | if (arg_action == ACTION_VERIFY) { |
739 | r = verify(j); | |
740 | goto finish; | |
741 | } | |
742 | ||
7560fffc | 743 | if (arg_action == ACTION_PRINT_HEADER) { |
dca6219e LP |
744 | journal_print_header(j); |
745 | r = 0; | |
746 | goto finish; | |
747 | } | |
748 | ||
beec0085 | 749 | #ifdef HAVE_ACL |
99add6fd LP |
750 | if (access("/var/log/journal", F_OK) < 0 && geteuid() != 0 && in_group("adm") <= 0) { |
751 | log_error("Unprivileged users can't see messages unless persistent log storage is enabled. Users in the group 'adm' can always see messages."); | |
752 | r = -EACCES; | |
753 | goto finish; | |
754 | } | |
755 | ||
beec0085 | 756 | if (!arg_quiet && geteuid() != 0 && in_group("adm") <= 0) |
99add6fd LP |
757 | log_warning("Showing user generated messages only. Users in the group 'adm' can see all messages. Pass -q to turn this notice off."); |
758 | #else | |
759 | if (geteuid() != 0 && in_group("adm") <= 0) { | |
760 | log_error("No access to messages. Only users in the group 'adm' can see messages."); | |
761 | r = -EACCES; | |
762 | goto finish; | |
763 | } | |
beec0085 LP |
764 | #endif |
765 | ||
a963990f LP |
766 | r = add_this_boot(j); |
767 | if (r < 0) | |
768 | goto finish; | |
769 | ||
770 | r = add_matches(j, argv + optind); | |
771 | if (r < 0) | |
772 | goto finish; | |
773 | ||
941e990d LP |
774 | r = add_priorities(j); |
775 | if (r < 0) | |
776 | goto finish; | |
777 | ||
08984293 LP |
778 | if (!arg_quiet) { |
779 | usec_t start, end; | |
780 | char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX]; | |
781 | ||
782 | r = sd_journal_get_cutoff_realtime_usec(j, &start, &end); | |
783 | if (r < 0) { | |
784 | log_error("Failed to get cutoff: %s", strerror(-r)); | |
785 | goto finish; | |
786 | } | |
787 | ||
788 | if (r > 0) { | |
789 | if (arg_follow) | |
790 | printf("Logs begin at %s.\n", format_timestamp(start_buf, sizeof(start_buf), start)); | |
791 | else | |
792 | printf("Logs begin at %s, end at %s.\n", | |
793 | format_timestamp(start_buf, sizeof(start_buf), start), | |
794 | format_timestamp(end_buf, sizeof(end_buf), end)); | |
795 | } | |
796 | } | |
797 | ||
2100675e LP |
798 | if (arg_lines >= 0) { |
799 | r = sd_journal_seek_tail(j); | |
800 | if (r < 0) { | |
801 | log_error("Failed to seek to tail: %s", strerror(-r)); | |
802 | goto finish; | |
803 | } | |
804 | ||
805 | r = sd_journal_previous_skip(j, arg_lines); | |
2100675e LP |
806 | } else { |
807 | r = sd_journal_seek_head(j); | |
808 | if (r < 0) { | |
809 | log_error("Failed to seek to head: %s", strerror(-r)); | |
810 | goto finish; | |
811 | } | |
6f003b43 LP |
812 | |
813 | r = sd_journal_next(j); | |
814 | } | |
815 | ||
816 | if (r < 0) { | |
817 | log_error("Failed to iterate through journal: %s", strerror(-r)); | |
818 | goto finish; | |
50f20cfd | 819 | } |
87d2c1ff | 820 | |
49826187 | 821 | on_tty(); |
fafb6ecc | 822 | have_pager = !arg_no_pager && !arg_follow && pager_open(); |
0d43c694 | 823 | |
50f20cfd | 824 | for (;;) { |
0d43c694 | 825 | for (;;) { |
14a65d65 | 826 | sd_id128_t boot_id; |
49826187 LP |
827 | int flags = |
828 | arg_show_all * OUTPUT_SHOW_ALL | | |
829 | have_pager * OUTPUT_FULL_WIDTH | | |
830 | on_tty() * OUTPUT_COLOR; | |
14a65d65 | 831 | |
6f003b43 LP |
832 | if (need_seek) { |
833 | r = sd_journal_next(j); | |
834 | if (r < 0) { | |
835 | log_error("Failed to iterate through journal: %s", strerror(-r)); | |
836 | goto finish; | |
837 | } | |
0d43c694 LP |
838 | } |
839 | ||
840 | if (r == 0) | |
841 | break; | |
842 | ||
14a65d65 LP |
843 | r = sd_journal_get_monotonic_usec(j, NULL, &boot_id); |
844 | if (r >= 0) { | |
845 | if (previous_boot_id_valid && | |
846 | !sd_id128_equal(boot_id, previous_boot_id)) | |
847 | printf(ANSI_HIGHLIGHT_ON "----- Reboot -----" ANSI_HIGHLIGHT_OFF "\n"); | |
848 | ||
849 | previous_boot_id = boot_id; | |
850 | previous_boot_id_valid = true; | |
851 | } | |
852 | ||
72f59706 | 853 | line ++; |
50f20cfd | 854 | |
92a1fd9e | 855 | r = output_journal(j, arg_output, line, 0, flags); |
72f59706 LP |
856 | if (r < 0) |
857 | goto finish; | |
6f003b43 LP |
858 | |
859 | need_seek = true; | |
87d2c1ff LP |
860 | } |
861 | ||
50f20cfd LP |
862 | if (!arg_follow) |
863 | break; | |
864 | ||
e02d1cf7 | 865 | r = sd_journal_wait(j, (uint64_t) -1); |
50f20cfd | 866 | if (r < 0) { |
e02d1cf7 | 867 | log_error("Couldn't wait for log event: %s", strerror(-r)); |
50f20cfd LP |
868 | goto finish; |
869 | } | |
de190aef | 870 | } |
87d2c1ff LP |
871 | |
872 | finish: | |
3fbf9cbb LP |
873 | if (j) |
874 | sd_journal_close(j); | |
87d2c1ff | 875 | |
0d43c694 LP |
876 | pager_close(); |
877 | ||
3fbf9cbb | 878 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
87d2c1ff | 879 | } |