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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; |
2100675e | 61 | static int arg_lines = -1; |
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; |
a963990f | 66 | static const char *arg_directory = NULL; |
941e990d | 67 | static int arg_priorities = 0xFF; |
baed47c3 | 68 | static const char *arg_verify_key = NULL; |
feb12d3e | 69 | #ifdef HAVE_GCRYPT |
baed47c3 | 70 | static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC; |
feb12d3e | 71 | #endif |
50f20cfd | 72 | |
7560fffc LP |
73 | static enum { |
74 | ACTION_SHOW, | |
75 | ACTION_NEW_ID128, | |
76 | ACTION_PRINT_HEADER, | |
beec0085 | 77 | ACTION_SETUP_KEYS, |
a1a03e30 LP |
78 | ACTION_VERIFY, |
79 | ACTION_DISK_USAGE, | |
7560fffc LP |
80 | } arg_action = ACTION_SHOW; |
81 | ||
0d43c694 LP |
82 | static int help(void) { |
83 | ||
89834a7c | 84 | printf("%s [OPTIONS...] [MATCH]\n\n" |
df50185b | 85 | "Send control commands to or query the journal.\n\n" |
baed47c3 LP |
86 | " -h --help Show this help\n" |
87 | " --version Show package version\n" | |
88 | " --no-pager Do not pipe output into a pager\n" | |
89 | " -a --all Show all fields, including long and unprintable\n" | |
90 | " -f --follow Follow journal\n" | |
1705594f | 91 | " -n --lines[=INTEGER] Number of journal entries to show\n" |
baed47c3 LP |
92 | " --no-tail Show all lines, even in follow mode\n" |
93 | " -o --output=STRING Change journal output mode (short, short-monotonic,\n" | |
a6e87e90 | 94 | " verbose, export, json, json-pretty, cat)\n" |
baed47c3 | 95 | " -q --quiet Don't show privilege warning\n" |
9e8a535f | 96 | " -m --merge Show entries from all available journals\n" |
baed47c3 LP |
97 | " -b --this-boot Show data only from current boot\n" |
98 | " -D --directory=PATH Show journal files from directory\n" | |
99 | " -p --priority=RANGE Show only messages within the specified priority range\n\n" | |
7560fffc | 100 | "Commands:\n" |
baed47c3 LP |
101 | " --new-id128 Generate a new 128 Bit ID\n" |
102 | " --header Show journal header information\n" | |
a1a03e30 | 103 | " --disk-usage Show total disk usage\n" |
feb12d3e | 104 | #ifdef HAVE_GCRYPT |
baed47c3 LP |
105 | " --setup-keys Generate new FSS key pair\n" |
106 | " --interval=TIME Time interval for changing the FSS sealing key\n" | |
107 | " --verify Verify journal file consistency\n" | |
feb12d3e LP |
108 | " --verify-key=KEY Specify FSS verification key\n" |
109 | #endif | |
110 | , program_invocation_short_name); | |
0d43c694 LP |
111 | |
112 | return 0; | |
113 | } | |
114 | ||
115 | static int parse_argv(int argc, char *argv[]) { | |
116 | ||
117 | enum { | |
118 | ARG_VERSION = 0x100, | |
e91af489 | 119 | ARG_NO_PAGER, |
55ee336c | 120 | ARG_NO_TAIL, |
dca6219e | 121 | ARG_NEW_ID128, |
7560fffc | 122 | ARG_HEADER, |
beec0085 | 123 | ARG_SETUP_KEYS, |
baed47c3 | 124 | ARG_INTERVAL, |
4da416aa | 125 | ARG_VERIFY, |
a1a03e30 LP |
126 | ARG_VERIFY_KEY, |
127 | ARG_DISK_USAGE | |
0d43c694 LP |
128 | }; |
129 | ||
130 | static const struct option options[] = { | |
baed47c3 LP |
131 | { "help", no_argument, NULL, 'h' }, |
132 | { "version" , no_argument, NULL, ARG_VERSION }, | |
133 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
134 | { "follow", no_argument, NULL, 'f' }, | |
135 | { "output", required_argument, NULL, 'o' }, | |
136 | { "all", no_argument, NULL, 'a' }, | |
1705594f | 137 | { "lines", optional_argument, NULL, 'n' }, |
baed47c3 LP |
138 | { "no-tail", no_argument, NULL, ARG_NO_TAIL }, |
139 | { "new-id128", no_argument, NULL, ARG_NEW_ID128 }, | |
140 | { "quiet", no_argument, NULL, 'q' }, | |
9e8a535f | 141 | { "merge", no_argument, NULL, 'm' }, |
baed47c3 LP |
142 | { "this-boot", no_argument, NULL, 'b' }, |
143 | { "directory", required_argument, NULL, 'D' }, | |
144 | { "header", no_argument, NULL, ARG_HEADER }, | |
145 | { "priority", no_argument, NULL, 'p' }, | |
146 | { "setup-keys", no_argument, NULL, ARG_SETUP_KEYS }, | |
147 | { "interval", required_argument, NULL, ARG_INTERVAL }, | |
148 | { "verify", no_argument, NULL, ARG_VERIFY }, | |
149 | { "verify-key", required_argument, NULL, ARG_VERIFY_KEY }, | |
a1a03e30 | 150 | { "disk-usage", no_argument, NULL, ARG_DISK_USAGE }, |
baed47c3 | 151 | { NULL, 0, NULL, 0 } |
0d43c694 LP |
152 | }; |
153 | ||
2100675e | 154 | int c, r; |
0d43c694 LP |
155 | |
156 | assert(argc >= 0); | |
157 | assert(argv); | |
158 | ||
1705594f | 159 | while ((c = getopt_long(argc, argv, "hfo:an::qmbD:p:", options, NULL)) >= 0) { |
0d43c694 LP |
160 | |
161 | switch (c) { | |
162 | ||
163 | case 'h': | |
164 | help(); | |
165 | return 0; | |
166 | ||
167 | case ARG_VERSION: | |
168 | puts(PACKAGE_STRING); | |
169 | puts(DISTRIBUTION); | |
170 | puts(SYSTEMD_FEATURES); | |
171 | return 0; | |
172 | ||
173 | case ARG_NO_PAGER: | |
174 | arg_no_pager = true; | |
175 | break; | |
176 | ||
177 | case 'f': | |
178 | arg_follow = true; | |
585314e8 | 179 | signal(SIGWINCH, columns_cache_reset); |
0d43c694 LP |
180 | break; |
181 | ||
182 | case 'o': | |
1705594f | 183 | arg_output = output_mode_from_string(optarg); |
df50185b | 184 | if (arg_output < 0) { |
0d43c694 LP |
185 | log_error("Unknown output '%s'.", optarg); |
186 | return -EINVAL; | |
187 | } | |
df50185b | 188 | |
0d43c694 LP |
189 | break; |
190 | ||
191 | case 'a': | |
192 | arg_show_all = true; | |
193 | break; | |
194 | ||
2100675e | 195 | case 'n': |
1705594f LP |
196 | if (optarg) { |
197 | r = safe_atoi(optarg, &arg_lines); | |
198 | if (r < 0 || arg_lines < 0) { | |
199 | log_error("Failed to parse lines '%s'", optarg); | |
200 | return -EINVAL; | |
201 | } | |
202 | } else | |
203 | arg_lines = 10; | |
204 | ||
2100675e LP |
205 | break; |
206 | ||
e91af489 LP |
207 | case ARG_NO_TAIL: |
208 | arg_no_tail = true; | |
209 | break; | |
210 | ||
39f7f5c1 | 211 | case ARG_NEW_ID128: |
7560fffc | 212 | arg_action = ACTION_NEW_ID128; |
55ee336c LP |
213 | break; |
214 | ||
43673799 LP |
215 | case 'q': |
216 | arg_quiet = true; | |
490e567d | 217 | break; |
43673799 | 218 | |
9e8a535f LP |
219 | case 'm': |
220 | arg_merge = true; | |
2bd3c38a LP |
221 | break; |
222 | ||
59cea26a LP |
223 | case 'b': |
224 | arg_this_boot = true; | |
225 | break; | |
226 | ||
a963990f LP |
227 | case 'D': |
228 | arg_directory = optarg; | |
229 | break; | |
230 | ||
dca6219e | 231 | case ARG_HEADER: |
7560fffc LP |
232 | arg_action = ACTION_PRINT_HEADER; |
233 | break; | |
234 | ||
feb12d3e LP |
235 | case ARG_VERIFY: |
236 | arg_action = ACTION_VERIFY; | |
237 | break; | |
238 | ||
a1a03e30 LP |
239 | case ARG_DISK_USAGE: |
240 | arg_action = ACTION_DISK_USAGE; | |
241 | break; | |
242 | ||
feb12d3e | 243 | #ifdef HAVE_GCRYPT |
7560fffc LP |
244 | case ARG_SETUP_KEYS: |
245 | arg_action = ACTION_SETUP_KEYS; | |
dca6219e LP |
246 | break; |
247 | ||
beec0085 | 248 | |
baed47c3 | 249 | case ARG_VERIFY_KEY: |
4da416aa | 250 | arg_action = ACTION_VERIFY; |
baed47c3 | 251 | arg_verify_key = optarg; |
9e8a535f | 252 | arg_merge = false; |
4da416aa LP |
253 | break; |
254 | ||
baed47c3 LP |
255 | case ARG_INTERVAL: |
256 | r = parse_usec(optarg, &arg_interval); | |
257 | if (r < 0 || arg_interval <= 0) { | |
258 | log_error("Failed to parse sealing key change interval: %s", optarg); | |
14d10188 LP |
259 | return -EINVAL; |
260 | } | |
261 | break; | |
feb12d3e LP |
262 | #else |
263 | case ARG_SETUP_KEYS: | |
264 | case ARG_VERIFY_KEY: | |
265 | case ARG_INTERVAL: | |
266 | log_error("Forward-secure sealing not available."); | |
267 | return -ENOTSUP; | |
268 | #endif | |
14d10188 | 269 | |
941e990d LP |
270 | case 'p': { |
271 | const char *dots; | |
272 | ||
273 | dots = strstr(optarg, ".."); | |
274 | if (dots) { | |
275 | char *a; | |
276 | int from, to, i; | |
277 | ||
278 | /* a range */ | |
279 | a = strndup(optarg, dots - optarg); | |
280 | if (!a) | |
281 | return log_oom(); | |
282 | ||
283 | from = log_level_from_string(a); | |
284 | to = log_level_from_string(dots + 2); | |
285 | free(a); | |
286 | ||
287 | if (from < 0 || to < 0) { | |
288 | log_error("Failed to parse log level range %s", optarg); | |
289 | return -EINVAL; | |
290 | } | |
291 | ||
292 | arg_priorities = 0; | |
293 | ||
294 | if (from < to) { | |
295 | for (i = from; i <= to; i++) | |
296 | arg_priorities |= 1 << i; | |
297 | } else { | |
298 | for (i = to; i <= from; i++) | |
299 | arg_priorities |= 1 << i; | |
300 | } | |
301 | ||
302 | } else { | |
303 | int p, i; | |
304 | ||
305 | p = log_level_from_string(optarg); | |
306 | if (p < 0) { | |
307 | log_error("Unknown log level %s", optarg); | |
308 | return -EINVAL; | |
309 | } | |
310 | ||
311 | arg_priorities = 0; | |
312 | ||
313 | for (i = 0; i <= p; i++) | |
314 | arg_priorities |= 1 << i; | |
315 | } | |
316 | ||
317 | break; | |
318 | } | |
319 | ||
0d43c694 LP |
320 | case '?': |
321 | return -EINVAL; | |
322 | ||
323 | default: | |
324 | log_error("Unknown option code %c", c); | |
325 | return -EINVAL; | |
326 | } | |
327 | } | |
328 | ||
62f21ec9 | 329 | if (arg_follow && !arg_no_tail && arg_lines < 0) |
e91af489 LP |
330 | arg_lines = 10; |
331 | ||
0d43c694 LP |
332 | return 1; |
333 | } | |
334 | ||
49826187 LP |
335 | static bool on_tty(void) { |
336 | static int t = -1; | |
337 | ||
338 | /* Note that this is invoked relatively early, before we start | |
339 | * the pager. That means the value we return reflects whether | |
340 | * we originally were started on a tty, not if we currently | |
341 | * are. But this is intended, since we want colour and so on | |
342 | * when run in our own pager. */ | |
343 | ||
344 | if (_unlikely_(t < 0)) | |
345 | t = isatty(STDOUT_FILENO) > 0; | |
346 | ||
347 | return t; | |
348 | } | |
349 | ||
39f7f5c1 | 350 | static int generate_new_id128(void) { |
55ee336c LP |
351 | sd_id128_t id; |
352 | int r; | |
353 | unsigned i; | |
354 | ||
355 | r = sd_id128_randomize(&id); | |
356 | if (r < 0) { | |
357 | log_error("Failed to generate ID: %s", strerror(-r)); | |
358 | return r; | |
359 | } | |
360 | ||
361 | printf("As string:\n" | |
362 | SD_ID128_FORMAT_STR "\n\n" | |
363 | "As UUID:\n" | |
364 | "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n\n" | |
365 | "As macro:\n" | |
366 | "#define MESSAGE_XYZ SD_ID128_MAKE(", | |
367 | SD_ID128_FORMAT_VAL(id), | |
368 | SD_ID128_FORMAT_VAL(id)); | |
369 | ||
370 | for (i = 0; i < 16; i++) | |
371 | printf("%02x%s", id.bytes[i], i != 15 ? "," : ""); | |
372 | ||
373 | fputs(")\n", stdout); | |
374 | ||
375 | return 0; | |
376 | } | |
377 | ||
a963990f LP |
378 | static int add_matches(sd_journal *j, char **args) { |
379 | char **i; | |
380 | int r; | |
59cea26a | 381 | |
a963990f | 382 | assert(j); |
59cea26a | 383 | |
a963990f | 384 | STRV_FOREACH(i, args) { |
59cea26a | 385 | |
cbdca852 LP |
386 | if (streq(*i, "+")) |
387 | r = sd_journal_add_disjunction(j); | |
388 | else if (path_is_absolute(*i)) { | |
b6a34514 | 389 | char *p, *t = NULL; |
e5124088 | 390 | const char *path; |
a963990f | 391 | struct stat st; |
e5124088 | 392 | |
a963990f LP |
393 | p = canonicalize_file_name(*i); |
394 | path = p ? p : *i; | |
e5124088 LP |
395 | |
396 | if (stat(path, &st) < 0) { | |
397 | free(p); | |
398 | log_error("Couldn't stat file: %m"); | |
a963990f | 399 | return -errno; |
e5124088 LP |
400 | } |
401 | ||
b6a34514 | 402 | if (S_ISREG(st.st_mode) && (0111 & st.st_mode)) |
e5124088 | 403 | t = strappend("_EXE=", path); |
b6a34514 LP |
404 | else if (S_ISCHR(st.st_mode)) |
405 | asprintf(&t, "_KERNEL_DEVICE=c%u:%u", major(st.st_rdev), minor(st.st_rdev)); | |
406 | else if (S_ISBLK(st.st_mode)) | |
407 | asprintf(&t, "_KERNEL_DEVICE=b%u:%u", major(st.st_rdev), minor(st.st_rdev)); | |
408 | else { | |
e5124088 | 409 | free(p); |
b6a34514 | 410 | log_error("File is not a device node, regular file or is not executable: %s", *i); |
a963990f | 411 | return -EINVAL; |
50940700 | 412 | } |
e5124088 LP |
413 | |
414 | free(p); | |
b6a34514 LP |
415 | |
416 | if (!t) | |
417 | return log_oom(); | |
418 | ||
419 | r = sd_journal_add_match(j, t, 0); | |
420 | free(t); | |
e5124088 | 421 | } else |
cbdca852 | 422 | r = sd_journal_add_match(j, *i, 0); |
e5124088 | 423 | |
de7b95cd | 424 | if (r < 0) { |
cbdca852 | 425 | log_error("Failed to add match '%s': %s", *i, strerror(-r)); |
a963990f | 426 | return r; |
de7b95cd LP |
427 | } |
428 | } | |
429 | ||
a963990f LP |
430 | return 0; |
431 | } | |
432 | ||
433 | static int add_this_boot(sd_journal *j) { | |
434 | char match[9+32+1] = "_BOOT_ID="; | |
435 | sd_id128_t boot_id; | |
436 | int r; | |
437 | ||
941e990d LP |
438 | assert(j); |
439 | ||
a963990f LP |
440 | if (!arg_this_boot) |
441 | return 0; | |
442 | ||
443 | r = sd_id128_get_boot(&boot_id); | |
444 | if (r < 0) { | |
445 | log_error("Failed to get boot id: %s", strerror(-r)); | |
446 | return r; | |
447 | } | |
448 | ||
449 | sd_id128_to_string(boot_id, match + 9); | |
450 | r = sd_journal_add_match(j, match, strlen(match)); | |
451 | if (r < 0) { | |
452 | log_error("Failed to add match: %s", strerror(-r)); | |
453 | return r; | |
454 | } | |
455 | ||
456 | return 0; | |
457 | } | |
458 | ||
941e990d LP |
459 | static int add_priorities(sd_journal *j) { |
460 | char match[] = "PRIORITY=0"; | |
461 | int i, r; | |
462 | ||
463 | assert(j); | |
464 | ||
465 | if (arg_priorities == 0xFF) | |
466 | return 0; | |
467 | ||
468 | for (i = LOG_EMERG; i <= LOG_DEBUG; i++) | |
469 | if (arg_priorities & (1 << i)) { | |
470 | match[sizeof(match)-2] = '0' + i; | |
471 | ||
472 | log_info("adding match %s", match); | |
473 | ||
474 | r = sd_journal_add_match(j, match, strlen(match)); | |
475 | if (r < 0) { | |
476 | log_error("Failed to add match: %s", strerror(-r)); | |
477 | return r; | |
478 | } | |
479 | } | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
7560fffc LP |
484 | static int setup_keys(void) { |
485 | #ifdef HAVE_GCRYPT | |
486 | size_t mpk_size, seed_size, state_size, i; | |
487 | uint8_t *mpk, *seed, *state; | |
488 | ssize_t l; | |
f982e6f7 | 489 | int fd = -1, r, attr = 0; |
7560fffc LP |
490 | sd_id128_t machine, boot; |
491 | char *p = NULL, *k = NULL; | |
baed47c3 | 492 | struct FSSHeader h; |
14d10188 | 493 | uint64_t n; |
7560fffc LP |
494 | |
495 | r = sd_id128_get_machine(&machine); | |
496 | if (r < 0) { | |
497 | log_error("Failed to get machine ID: %s", strerror(-r)); | |
498 | return r; | |
499 | } | |
500 | ||
501 | r = sd_id128_get_boot(&boot); | |
502 | if (r < 0) { | |
503 | log_error("Failed to get boot ID: %s", strerror(-r)); | |
504 | return r; | |
505 | } | |
506 | ||
baed47c3 | 507 | if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss", |
7560fffc LP |
508 | SD_ID128_FORMAT_VAL(machine)) < 0) |
509 | return log_oom(); | |
510 | ||
511 | if (access(p, F_OK) >= 0) { | |
f7fab8a5 | 512 | log_error("Sealing key file %s exists already.", p); |
7560fffc LP |
513 | r = -EEXIST; |
514 | goto finish; | |
515 | } | |
516 | ||
baed47c3 | 517 | if (asprintf(&k, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss.tmp.XXXXXX", |
7560fffc LP |
518 | SD_ID128_FORMAT_VAL(machine)) < 0) { |
519 | r = log_oom(); | |
520 | goto finish; | |
521 | } | |
522 | ||
523 | mpk_size = FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR); | |
524 | mpk = alloca(mpk_size); | |
525 | ||
526 | seed_size = FSPRG_RECOMMENDED_SEEDLEN; | |
527 | seed = alloca(seed_size); | |
528 | ||
529 | state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR); | |
530 | state = alloca(state_size); | |
531 | ||
532 | fd = open("/dev/random", O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
533 | if (fd < 0) { | |
534 | log_error("Failed to open /dev/random: %m"); | |
535 | r = -errno; | |
536 | goto finish; | |
537 | } | |
538 | ||
539 | log_info("Generating seed..."); | |
540 | l = loop_read(fd, seed, seed_size, true); | |
541 | if (l < 0 || (size_t) l != seed_size) { | |
542 | log_error("Failed to read random seed: %s", strerror(EIO)); | |
543 | r = -EIO; | |
544 | goto finish; | |
545 | } | |
546 | ||
547 | log_info("Generating key pair..."); | |
548 | FSPRG_GenMK(NULL, mpk, seed, seed_size, FSPRG_RECOMMENDED_SECPAR); | |
549 | ||
baed47c3 | 550 | log_info("Generating sealing key..."); |
7560fffc LP |
551 | FSPRG_GenState0(state, mpk, seed, seed_size); |
552 | ||
baed47c3 LP |
553 | assert(arg_interval > 0); |
554 | ||
7560fffc | 555 | n = now(CLOCK_REALTIME); |
baed47c3 | 556 | n /= arg_interval; |
7560fffc LP |
557 | |
558 | close_nointr_nofail(fd); | |
559 | fd = mkostemp(k, O_WRONLY|O_CLOEXEC|O_NOCTTY); | |
560 | if (fd < 0) { | |
561 | log_error("Failed to open %s: %m", k); | |
562 | r = -errno; | |
563 | goto finish; | |
564 | } | |
565 | ||
f982e6f7 LP |
566 | /* Enable secure remove, exclusion from dump, synchronous |
567 | * writing and in-place updating */ | |
568 | if (ioctl(fd, FS_IOC_GETFLAGS, &attr) < 0) | |
569 | log_warning("FS_IOC_GETFLAGS failed: %m"); | |
570 | ||
571 | attr |= FS_SECRM_FL|FS_NODUMP_FL|FS_SYNC_FL|FS_NOCOW_FL; | |
572 | ||
573 | if (ioctl(fd, FS_IOC_SETFLAGS, &attr) < 0) | |
574 | log_warning("FS_IOC_SETFLAGS failed: %m"); | |
575 | ||
7560fffc LP |
576 | zero(h); |
577 | memcpy(h.signature, "KSHHRHLP", 8); | |
578 | h.machine_id = machine; | |
579 | h.boot_id = boot; | |
580 | h.header_size = htole64(sizeof(h)); | |
baed47c3 LP |
581 | h.start_usec = htole64(n * arg_interval); |
582 | h.interval_usec = htole64(arg_interval); | |
583 | h.fsprg_secpar = htole16(FSPRG_RECOMMENDED_SECPAR); | |
584 | h.fsprg_state_size = htole64(state_size); | |
7560fffc LP |
585 | |
586 | l = loop_write(fd, &h, sizeof(h), false); | |
587 | if (l < 0 || (size_t) l != sizeof(h)) { | |
588 | log_error("Failed to write header: %s", strerror(EIO)); | |
589 | r = -EIO; | |
590 | goto finish; | |
591 | } | |
592 | ||
593 | l = loop_write(fd, state, state_size, false); | |
594 | if (l < 0 || (size_t) l != state_size) { | |
595 | log_error("Failed to write state: %s", strerror(EIO)); | |
596 | r = -EIO; | |
597 | goto finish; | |
598 | } | |
599 | ||
600 | if (link(k, p) < 0) { | |
601 | log_error("Failed to link file: %m"); | |
602 | r = -errno; | |
603 | goto finish; | |
604 | } | |
605 | ||
606 | if (isatty(STDOUT_FILENO)) { | |
607 | fprintf(stderr, | |
608 | "\n" | |
baed47c3 | 609 | "The new key pair has been generated. The " ANSI_HIGHLIGHT_ON "secret sealing key" ANSI_HIGHLIGHT_OFF " has been written to\n" |
c05276f2 LP |
610 | "the following local file. This key file is automatically updated when the\n" |
611 | "sealing key is advanced. It should not be used on multiple hosts.\n" | |
7560fffc LP |
612 | "\n" |
613 | "\t%s\n" | |
614 | "\n" | |
baed47c3 LP |
615 | "Please write down the following " ANSI_HIGHLIGHT_ON "secret verification key" ANSI_HIGHLIGHT_OFF ". It should be stored\n" |
616 | "at a safe location and should not be saved locally on disk.\n" | |
7560fffc LP |
617 | "\n\t" ANSI_HIGHLIGHT_RED_ON, p); |
618 | fflush(stderr); | |
619 | } | |
620 | for (i = 0; i < seed_size; i++) { | |
621 | if (i > 0 && i % 3 == 0) | |
622 | putchar('-'); | |
623 | printf("%02x", ((uint8_t*) seed)[i]); | |
624 | } | |
625 | ||
baed47c3 LP |
626 | printf("/%llx-%llx\n", (unsigned long long) n, (unsigned long long) arg_interval); |
627 | ||
628 | if (isatty(STDOUT_FILENO)) { | |
f6a971bc | 629 | char tsb[FORMAT_TIMESPAN_MAX], *hn; |
7560fffc | 630 | |
baed47c3 LP |
631 | fprintf(stderr, |
632 | ANSI_HIGHLIGHT_OFF "\n" | |
633 | "The sealing key is automatically changed every %s.\n", | |
634 | format_timespan(tsb, sizeof(tsb), arg_interval)); | |
f6a971bc LP |
635 | |
636 | hn = gethostname_malloc(); | |
637 | ||
638 | if (hn) { | |
639 | hostname_cleanup(hn); | |
adac1c93 | 640 | fprintf(stderr, "\nThe keys have been generated for host %s/" SD_ID128_FORMAT_STR ".\n", hn, SD_ID128_FORMAT_VAL(machine)); |
f6a971bc | 641 | } else |
adac1c93 | 642 | fprintf(stderr, "\nThe keys have been generated for host " SD_ID128_FORMAT_STR ".\n", SD_ID128_FORMAT_VAL(machine)); |
f6a971bc LP |
643 | |
644 | #ifdef HAVE_QRENCODE | |
cf5a3432 LP |
645 | /* If this is not an UTF-8 system don't print any QR codes */ |
646 | setlocale(LC_CTYPE, ""); | |
647 | ||
648 | if (streq_ptr(nl_langinfo(CODESET), "UTF-8")) { | |
649 | fputs("\nTo transfer the verification key to your phone please scan the QR code below:\n\n", stderr); | |
650 | print_qr_code(stderr, seed, seed_size, n, arg_interval, hn, machine); | |
651 | } | |
f6a971bc LP |
652 | #endif |
653 | free(hn); | |
baed47c3 | 654 | } |
7560fffc LP |
655 | |
656 | r = 0; | |
657 | ||
658 | finish: | |
659 | if (fd >= 0) | |
660 | close_nointr_nofail(fd); | |
661 | ||
662 | if (k) { | |
663 | unlink(k); | |
664 | free(k); | |
665 | } | |
666 | ||
667 | free(p); | |
668 | ||
669 | return r; | |
670 | #else | |
feb12d3e LP |
671 | log_error("Forward-secure sealing not available."); |
672 | return -ENOTSUP; | |
7560fffc LP |
673 | #endif |
674 | } | |
675 | ||
beec0085 LP |
676 | static int verify(sd_journal *j) { |
677 | int r = 0; | |
678 | Iterator i; | |
679 | JournalFile *f; | |
680 | ||
681 | assert(j); | |
682 | ||
cedb42bb LP |
683 | log_show_color(true); |
684 | ||
beec0085 LP |
685 | HASHMAP_FOREACH(f, j->files, i) { |
686 | int k; | |
2a7b539a | 687 | usec_t first, validated, last; |
beec0085 | 688 | |
56e81f7c | 689 | #ifdef HAVE_GCRYPT |
feb12d3e | 690 | if (!arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) |
cedb42bb | 691 | log_notice("Journal file %s has sealing enabled but verification key has not been passed using --verify-key=.", f->path); |
56e81f7c | 692 | #endif |
4da416aa | 693 | |
2a7b539a | 694 | k = journal_file_verify(f, arg_verify_key, &first, &validated, &last, true); |
56e81f7c | 695 | if (k == -EINVAL) { |
baed47c3 | 696 | /* If the key was invalid give up right-away. */ |
56e81f7c LP |
697 | return k; |
698 | } else if (k < 0) { | |
beec0085 | 699 | log_warning("FAIL: %s (%s)", f->path, strerror(-k)); |
56e81f7c | 700 | r = k; |
6c7be122 LP |
701 | } else { |
702 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX], c[FORMAT_TIMESPAN_MAX]; | |
beec0085 | 703 | log_info("PASS: %s", f->path); |
6c7be122 | 704 | |
c0ca7aee | 705 | if (arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) { |
2a7b539a | 706 | if (validated > 0) { |
c0ca7aee | 707 | log_info("=> Validated from %s to %s, final %s entries not sealed.", |
2a7b539a LP |
708 | format_timestamp(a, sizeof(a), first), |
709 | format_timestamp(b, sizeof(b), validated), | |
710 | format_timespan(c, sizeof(c), last > validated ? last - validated : 0)); | |
711 | } else if (last > 0) | |
c0ca7aee | 712 | log_info("=> No sealing yet, %s of entries not sealed.", |
2a7b539a | 713 | format_timespan(c, sizeof(c), last - first)); |
c0ca7aee LP |
714 | else |
715 | log_info("=> No sealing yet, no entries in file."); | |
716 | } | |
6c7be122 | 717 | } |
beec0085 LP |
718 | } |
719 | ||
720 | return r; | |
721 | } | |
722 | ||
a963990f LP |
723 | int main(int argc, char *argv[]) { |
724 | int r; | |
725 | sd_journal *j = NULL; | |
726 | unsigned line = 0; | |
727 | bool need_seek = false; | |
14a65d65 LP |
728 | sd_id128_t previous_boot_id; |
729 | bool previous_boot_id_valid = false; | |
92a1fd9e | 730 | bool have_pager; |
a963990f LP |
731 | |
732 | log_parse_environment(); | |
733 | log_open(); | |
734 | ||
735 | r = parse_argv(argc, argv); | |
736 | if (r <= 0) | |
737 | goto finish; | |
738 | ||
7560fffc | 739 | if (arg_action == ACTION_NEW_ID128) { |
a963990f LP |
740 | r = generate_new_id128(); |
741 | goto finish; | |
742 | } | |
743 | ||
7560fffc LP |
744 | if (arg_action == ACTION_SETUP_KEYS) { |
745 | r = setup_keys(); | |
746 | goto finish; | |
747 | } | |
748 | ||
a963990f LP |
749 | if (arg_directory) |
750 | r = sd_journal_open_directory(&j, arg_directory, 0); | |
751 | else | |
9e8a535f | 752 | r = sd_journal_open(&j, arg_merge ? 0 : SD_JOURNAL_LOCAL_ONLY); |
a963990f LP |
753 | |
754 | if (r < 0) { | |
755 | log_error("Failed to open journal: %s", strerror(-r)); | |
756 | goto finish; | |
757 | } | |
758 | ||
beec0085 LP |
759 | if (arg_action == ACTION_VERIFY) { |
760 | r = verify(j); | |
761 | goto finish; | |
762 | } | |
763 | ||
7560fffc | 764 | if (arg_action == ACTION_PRINT_HEADER) { |
dca6219e LP |
765 | journal_print_header(j); |
766 | r = 0; | |
767 | goto finish; | |
768 | } | |
769 | ||
a1a03e30 LP |
770 | if (arg_action == ACTION_DISK_USAGE) { |
771 | uint64_t bytes; | |
772 | char sbytes[FORMAT_BYTES_MAX]; | |
773 | ||
774 | r = sd_journal_get_usage(j, &bytes); | |
775 | if (r < 0) | |
776 | goto finish; | |
777 | ||
778 | printf("Journals take up %s on disk.\n", format_bytes(sbytes, sizeof(sbytes), bytes)); | |
779 | r = 0; | |
780 | goto finish; | |
781 | } | |
782 | ||
beec0085 | 783 | #ifdef HAVE_ACL |
99add6fd LP |
784 | if (access("/var/log/journal", F_OK) < 0 && geteuid() != 0 && in_group("adm") <= 0) { |
785 | log_error("Unprivileged users can't see messages unless persistent log storage is enabled. Users in the group 'adm' can always see messages."); | |
786 | r = -EACCES; | |
787 | goto finish; | |
788 | } | |
789 | ||
beec0085 | 790 | if (!arg_quiet && geteuid() != 0 && in_group("adm") <= 0) |
99add6fd LP |
791 | log_warning("Showing user generated messages only. Users in the group 'adm' can see all messages. Pass -q to turn this notice off."); |
792 | #else | |
793 | if (geteuid() != 0 && in_group("adm") <= 0) { | |
794 | log_error("No access to messages. Only users in the group 'adm' can see messages."); | |
795 | r = -EACCES; | |
796 | goto finish; | |
797 | } | |
beec0085 LP |
798 | #endif |
799 | ||
a963990f LP |
800 | r = add_this_boot(j); |
801 | if (r < 0) | |
802 | goto finish; | |
803 | ||
804 | r = add_matches(j, argv + optind); | |
805 | if (r < 0) | |
806 | goto finish; | |
807 | ||
941e990d LP |
808 | r = add_priorities(j); |
809 | if (r < 0) | |
810 | goto finish; | |
811 | ||
08984293 LP |
812 | if (!arg_quiet) { |
813 | usec_t start, end; | |
814 | char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX]; | |
815 | ||
816 | r = sd_journal_get_cutoff_realtime_usec(j, &start, &end); | |
817 | if (r < 0) { | |
818 | log_error("Failed to get cutoff: %s", strerror(-r)); | |
819 | goto finish; | |
820 | } | |
821 | ||
822 | if (r > 0) { | |
823 | if (arg_follow) | |
824 | printf("Logs begin at %s.\n", format_timestamp(start_buf, sizeof(start_buf), start)); | |
825 | else | |
826 | printf("Logs begin at %s, end at %s.\n", | |
827 | format_timestamp(start_buf, sizeof(start_buf), start), | |
828 | format_timestamp(end_buf, sizeof(end_buf), end)); | |
829 | } | |
830 | } | |
831 | ||
2100675e LP |
832 | if (arg_lines >= 0) { |
833 | r = sd_journal_seek_tail(j); | |
834 | if (r < 0) { | |
835 | log_error("Failed to seek to tail: %s", strerror(-r)); | |
836 | goto finish; | |
837 | } | |
838 | ||
839 | r = sd_journal_previous_skip(j, arg_lines); | |
2100675e LP |
840 | } else { |
841 | r = sd_journal_seek_head(j); | |
842 | if (r < 0) { | |
843 | log_error("Failed to seek to head: %s", strerror(-r)); | |
844 | goto finish; | |
845 | } | |
6f003b43 LP |
846 | |
847 | r = sd_journal_next(j); | |
848 | } | |
849 | ||
850 | if (r < 0) { | |
851 | log_error("Failed to iterate through journal: %s", strerror(-r)); | |
852 | goto finish; | |
50f20cfd | 853 | } |
87d2c1ff | 854 | |
49826187 | 855 | on_tty(); |
fafb6ecc | 856 | have_pager = !arg_no_pager && !arg_follow && pager_open(); |
0d43c694 | 857 | |
50f20cfd | 858 | for (;;) { |
0d43c694 | 859 | for (;;) { |
49826187 LP |
860 | int flags = |
861 | arg_show_all * OUTPUT_SHOW_ALL | | |
862 | have_pager * OUTPUT_FULL_WIDTH | | |
863 | on_tty() * OUTPUT_COLOR; | |
14a65d65 | 864 | |
6f003b43 LP |
865 | if (need_seek) { |
866 | r = sd_journal_next(j); | |
867 | if (r < 0) { | |
868 | log_error("Failed to iterate through journal: %s", strerror(-r)); | |
869 | goto finish; | |
870 | } | |
0d43c694 LP |
871 | } |
872 | ||
873 | if (r == 0) | |
874 | break; | |
875 | ||
cd931c0a LP |
876 | if (!arg_merge) { |
877 | sd_id128_t boot_id; | |
14a65d65 | 878 | |
cd931c0a LP |
879 | r = sd_journal_get_monotonic_usec(j, NULL, &boot_id); |
880 | if (r >= 0) { | |
881 | if (previous_boot_id_valid && | |
882 | !sd_id128_equal(boot_id, previous_boot_id)) | |
883 | printf(ANSI_HIGHLIGHT_ON "----- Reboot -----" ANSI_HIGHLIGHT_OFF "\n"); | |
884 | ||
885 | previous_boot_id = boot_id; | |
886 | previous_boot_id_valid = true; | |
887 | } | |
14a65d65 LP |
888 | } |
889 | ||
72f59706 | 890 | line ++; |
50f20cfd | 891 | |
92a1fd9e | 892 | r = output_journal(j, arg_output, line, 0, flags); |
72f59706 LP |
893 | if (r < 0) |
894 | goto finish; | |
6f003b43 LP |
895 | |
896 | need_seek = true; | |
87d2c1ff LP |
897 | } |
898 | ||
50f20cfd LP |
899 | if (!arg_follow) |
900 | break; | |
901 | ||
e02d1cf7 | 902 | r = sd_journal_wait(j, (uint64_t) -1); |
50f20cfd | 903 | if (r < 0) { |
e02d1cf7 | 904 | log_error("Couldn't wait for log event: %s", strerror(-r)); |
50f20cfd LP |
905 | goto finish; |
906 | } | |
de190aef | 907 | } |
87d2c1ff LP |
908 | |
909 | finish: | |
3fbf9cbb LP |
910 | if (j) |
911 | sd_journal_close(j); | |
87d2c1ff | 912 | |
0d43c694 LP |
913 | pager_close(); |
914 | ||
3fbf9cbb | 915 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
87d2c1ff | 916 | } |