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1 | /* SPDX-License-Identifier: LGPL-2.1+ */ | |
2 | ||
3 | #include <errno.h> | |
4 | #include <fcntl.h> | |
5 | #include <fnmatch.h> | |
6 | #include <getopt.h> | |
7 | #include <linux/fs.h> | |
8 | #include <poll.h> | |
9 | #include <signal.h> | |
10 | #include <stddef.h> | |
11 | #include <stdio.h> | |
12 | #include <stdlib.h> | |
13 | #include <sys/inotify.h> | |
14 | #include <sys/stat.h> | |
15 | #include <unistd.h> | |
16 | ||
17 | #if HAVE_PCRE2 | |
18 | # define PCRE2_CODE_UNIT_WIDTH 8 | |
19 | # include <pcre2.h> | |
20 | #endif | |
21 | ||
22 | #include "sd-bus.h" | |
23 | #include "sd-device.h" | |
24 | #include "sd-journal.h" | |
25 | ||
26 | #include "acl-util.h" | |
27 | #include "alloc-util.h" | |
28 | #include "bus-error.h" | |
29 | #include "bus-util.h" | |
30 | #include "catalog.h" | |
31 | #include "chattr-util.h" | |
32 | #include "def.h" | |
33 | #include "device-private.h" | |
34 | #include "fd-util.h" | |
35 | #include "fileio.h" | |
36 | #include "format-util.h" | |
37 | #include "fs-util.h" | |
38 | #include "fsprg.h" | |
39 | #include "glob-util.h" | |
40 | #include "hostname-util.h" | |
41 | #include "id128-print.h" | |
42 | #include "io-util.h" | |
43 | #include "journal-def.h" | |
44 | #include "journal-internal.h" | |
45 | #include "journal-qrcode.h" | |
46 | #include "journal-util.h" | |
47 | #include "journal-vacuum.h" | |
48 | #include "journal-verify.h" | |
49 | #include "locale-util.h" | |
50 | #include "log.h" | |
51 | #include "logs-show.h" | |
52 | #include "memory-util.h" | |
53 | #include "mkdir.h" | |
54 | #include "mountpoint-util.h" | |
55 | #include "nulstr-util.h" | |
56 | #include "pager.h" | |
57 | #include "parse-util.h" | |
58 | #include "path-util.h" | |
59 | #include "pretty-print.h" | |
60 | #include "rlimit-util.h" | |
61 | #include "set.h" | |
62 | #include "sigbus.h" | |
63 | #include "string-table.h" | |
64 | #include "strv.h" | |
65 | #include "syslog-util.h" | |
66 | #include "terminal-util.h" | |
67 | #include "tmpfile-util.h" | |
68 | #include "unit-name.h" | |
69 | #include "user-util.h" | |
70 | #include "varlink.h" | |
71 | ||
72 | #define DEFAULT_FSS_INTERVAL_USEC (15*USEC_PER_MINUTE) | |
73 | ||
74 | #define PROCESS_INOTIFY_INTERVAL 1024 /* Every 1,024 messages processed */ | |
75 | ||
76 | #if HAVE_PCRE2 | |
77 | DEFINE_TRIVIAL_CLEANUP_FUNC(pcre2_match_data*, pcre2_match_data_free); | |
78 | DEFINE_TRIVIAL_CLEANUP_FUNC(pcre2_code*, pcre2_code_free); | |
79 | ||
80 | static int pattern_compile(const char *pattern, unsigned flags, pcre2_code **out) { | |
81 | int errorcode, r; | |
82 | PCRE2_SIZE erroroffset; | |
83 | pcre2_code *p; | |
84 | ||
85 | p = pcre2_compile((PCRE2_SPTR8) pattern, | |
86 | PCRE2_ZERO_TERMINATED, flags, &errorcode, &erroroffset, NULL); | |
87 | if (!p) { | |
88 | unsigned char buf[LINE_MAX]; | |
89 | ||
90 | r = pcre2_get_error_message(errorcode, buf, sizeof buf); | |
91 | ||
92 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
93 | "Bad pattern \"%s\": %s", pattern, | |
94 | r < 0 ? "unknown error" : (char *)buf); | |
95 | } | |
96 | ||
97 | *out = p; | |
98 | return 0; | |
99 | } | |
100 | ||
101 | #endif | |
102 | ||
103 | enum { | |
104 | /* Special values for arg_lines */ | |
105 | ARG_LINES_DEFAULT = -2, | |
106 | ARG_LINES_ALL = -1, | |
107 | }; | |
108 | ||
109 | static OutputMode arg_output = OUTPUT_SHORT; | |
110 | static bool arg_utc = false; | |
111 | static bool arg_follow = false; | |
112 | static bool arg_full = true; | |
113 | static bool arg_all = false; | |
114 | static PagerFlags arg_pager_flags = 0; | |
115 | static int arg_lines = ARG_LINES_DEFAULT; | |
116 | static bool arg_no_tail = false; | |
117 | static bool arg_quiet = false; | |
118 | static bool arg_merge = false; | |
119 | static bool arg_boot = false; | |
120 | static sd_id128_t arg_boot_id = {}; | |
121 | static int arg_boot_offset = 0; | |
122 | static bool arg_dmesg = false; | |
123 | static bool arg_no_hostname = false; | |
124 | static const char *arg_cursor = NULL; | |
125 | static const char *arg_cursor_file = NULL; | |
126 | static const char *arg_after_cursor = NULL; | |
127 | static bool arg_show_cursor = false; | |
128 | static const char *arg_directory = NULL; | |
129 | static char **arg_file = NULL; | |
130 | static bool arg_file_stdin = false; | |
131 | static int arg_priorities = 0xFF; | |
132 | static char *arg_verify_key = NULL; | |
133 | #if HAVE_GCRYPT | |
134 | static usec_t arg_interval = DEFAULT_FSS_INTERVAL_USEC; | |
135 | static bool arg_force = false; | |
136 | #endif | |
137 | static usec_t arg_since, arg_until; | |
138 | static bool arg_since_set = false, arg_until_set = false; | |
139 | static char **arg_syslog_identifier = NULL; | |
140 | static char **arg_system_units = NULL; | |
141 | static char **arg_user_units = NULL; | |
142 | static const char *arg_field = NULL; | |
143 | static bool arg_catalog = false; | |
144 | static bool arg_reverse = false; | |
145 | static int arg_journal_type = 0; | |
146 | static char *arg_root = NULL; | |
147 | static const char *arg_machine = NULL; | |
148 | static uint64_t arg_vacuum_size = 0; | |
149 | static uint64_t arg_vacuum_n_files = 0; | |
150 | static usec_t arg_vacuum_time = 0; | |
151 | static char **arg_output_fields = NULL; | |
152 | ||
153 | #if HAVE_PCRE2 | |
154 | static const char *arg_pattern = NULL; | |
155 | static pcre2_code *arg_compiled_pattern = NULL; | |
156 | static int arg_case_sensitive = -1; /* -1 means be smart */ | |
157 | #endif | |
158 | ||
159 | static enum { | |
160 | ACTION_SHOW, | |
161 | ACTION_NEW_ID128, | |
162 | ACTION_PRINT_HEADER, | |
163 | ACTION_SETUP_KEYS, | |
164 | ACTION_VERIFY, | |
165 | ACTION_DISK_USAGE, | |
166 | ACTION_LIST_CATALOG, | |
167 | ACTION_DUMP_CATALOG, | |
168 | ACTION_UPDATE_CATALOG, | |
169 | ACTION_LIST_BOOTS, | |
170 | ACTION_FLUSH, | |
171 | ACTION_RELINQUISH_VAR, | |
172 | ACTION_SYNC, | |
173 | ACTION_ROTATE, | |
174 | ACTION_VACUUM, | |
175 | ACTION_ROTATE_AND_VACUUM, | |
176 | ACTION_LIST_FIELDS, | |
177 | ACTION_LIST_FIELD_NAMES, | |
178 | } arg_action = ACTION_SHOW; | |
179 | ||
180 | typedef struct BootId { | |
181 | sd_id128_t id; | |
182 | uint64_t first; | |
183 | uint64_t last; | |
184 | LIST_FIELDS(struct BootId, boot_list); | |
185 | } BootId; | |
186 | ||
187 | static int add_matches_for_device(sd_journal *j, const char *devpath) { | |
188 | _cleanup_(sd_device_unrefp) sd_device *device = NULL; | |
189 | sd_device *d = NULL; | |
190 | struct stat st; | |
191 | int r; | |
192 | ||
193 | assert(j); | |
194 | assert(devpath); | |
195 | ||
196 | if (!path_startswith(devpath, "/dev/")) { | |
197 | log_error("Devpath does not start with /dev/"); | |
198 | return -EINVAL; | |
199 | } | |
200 | ||
201 | if (stat(devpath, &st) < 0) | |
202 | return log_error_errno(errno, "Couldn't stat file: %m"); | |
203 | ||
204 | r = device_new_from_stat_rdev(&device, &st); | |
205 | if (r < 0) | |
206 | return log_error_errno(r, "Failed to get device from devnum %u:%u: %m", major(st.st_rdev), minor(st.st_rdev)); | |
207 | ||
208 | for (d = device; d; ) { | |
209 | _cleanup_free_ char *match = NULL; | |
210 | const char *subsys, *sysname, *devnode; | |
211 | sd_device *parent; | |
212 | ||
213 | r = sd_device_get_subsystem(d, &subsys); | |
214 | if (r < 0) | |
215 | goto get_parent; | |
216 | ||
217 | r = sd_device_get_sysname(d, &sysname); | |
218 | if (r < 0) | |
219 | goto get_parent; | |
220 | ||
221 | match = strjoin("_KERNEL_DEVICE=+", subsys, ":", sysname); | |
222 | if (!match) | |
223 | return log_oom(); | |
224 | ||
225 | r = sd_journal_add_match(j, match, 0); | |
226 | if (r < 0) | |
227 | return log_error_errno(r, "Failed to add match: %m"); | |
228 | ||
229 | if (sd_device_get_devname(d, &devnode) >= 0) { | |
230 | _cleanup_free_ char *match1 = NULL; | |
231 | ||
232 | r = stat(devnode, &st); | |
233 | if (r < 0) | |
234 | return log_error_errno(r, "Failed to stat() device node \"%s\": %m", devnode); | |
235 | ||
236 | r = asprintf(&match1, "_KERNEL_DEVICE=%c%u:%u", S_ISBLK(st.st_mode) ? 'b' : 'c', major(st.st_rdev), minor(st.st_rdev)); | |
237 | if (r < 0) | |
238 | return log_oom(); | |
239 | ||
240 | r = sd_journal_add_match(j, match1, 0); | |
241 | if (r < 0) | |
242 | return log_error_errno(r, "Failed to add match: %m"); | |
243 | } | |
244 | ||
245 | get_parent: | |
246 | if (sd_device_get_parent(d, &parent) < 0) | |
247 | break; | |
248 | ||
249 | d = parent; | |
250 | } | |
251 | ||
252 | r = add_match_this_boot(j, arg_machine); | |
253 | if (r < 0) | |
254 | return log_error_errno(r, "Failed to add match for the current boot: %m"); | |
255 | ||
256 | return 0; | |
257 | } | |
258 | ||
259 | static char *format_timestamp_maybe_utc(char *buf, size_t l, usec_t t) { | |
260 | ||
261 | if (arg_utc) | |
262 | return format_timestamp_utc(buf, l, t); | |
263 | ||
264 | return format_timestamp(buf, l, t); | |
265 | } | |
266 | ||
267 | static int parse_boot_descriptor(const char *x, sd_id128_t *boot_id, int *offset) { | |
268 | sd_id128_t id = SD_ID128_NULL; | |
269 | int off = 0, r; | |
270 | ||
271 | if (streq(x, "all")) { | |
272 | *boot_id = SD_ID128_NULL; | |
273 | *offset = 0; | |
274 | return 0; | |
275 | } else if (strlen(x) >= 32) { | |
276 | char *t; | |
277 | ||
278 | t = strndupa(x, 32); | |
279 | r = sd_id128_from_string(t, &id); | |
280 | if (r >= 0) | |
281 | x += 32; | |
282 | ||
283 | if (!IN_SET(*x, 0, '-', '+')) | |
284 | return -EINVAL; | |
285 | ||
286 | if (*x != 0) { | |
287 | r = safe_atoi(x, &off); | |
288 | if (r < 0) | |
289 | return r; | |
290 | } | |
291 | } else { | |
292 | r = safe_atoi(x, &off); | |
293 | if (r < 0) | |
294 | return r; | |
295 | } | |
296 | ||
297 | if (boot_id) | |
298 | *boot_id = id; | |
299 | ||
300 | if (offset) | |
301 | *offset = off; | |
302 | ||
303 | return 1; | |
304 | } | |
305 | ||
306 | static int help(void) { | |
307 | _cleanup_free_ char *link = NULL; | |
308 | int r; | |
309 | ||
310 | (void) pager_open(arg_pager_flags); | |
311 | ||
312 | r = terminal_urlify_man("journalctl", "1", &link); | |
313 | if (r < 0) | |
314 | return log_oom(); | |
315 | ||
316 | printf("%s [OPTIONS...] [MATCHES...]\n\n" | |
317 | "%sQuery the journal.%s\n\n" | |
318 | "Options:\n" | |
319 | " --system Show the system journal\n" | |
320 | " --user Show the user journal for the current user\n" | |
321 | " -M --machine=CONTAINER Operate on local container\n" | |
322 | " -S --since=DATE Show entries not older than the specified date\n" | |
323 | " -U --until=DATE Show entries not newer than the specified date\n" | |
324 | " -c --cursor=CURSOR Show entries starting at the specified cursor\n" | |
325 | " --after-cursor=CURSOR Show entries after the specified cursor\n" | |
326 | " --show-cursor Print the cursor after all the entries\n" | |
327 | " --cursor-file=FILE Show entries after cursor in FILE and update FILE\n" | |
328 | " -b --boot[=ID] Show current boot or the specified boot\n" | |
329 | " --list-boots Show terse information about recorded boots\n" | |
330 | " -k --dmesg Show kernel message log from the current boot\n" | |
331 | " -u --unit=UNIT Show logs from the specified unit\n" | |
332 | " --user-unit=UNIT Show logs from the specified user unit\n" | |
333 | " -t --identifier=STRING Show entries with the specified syslog identifier\n" | |
334 | " -p --priority=RANGE Show entries with the specified priority\n" | |
335 | " -g --grep=PATTERN Show entries with MESSAGE matching PATTERN\n" | |
336 | " --case-sensitive[=BOOL] Force case sensitive or insenstive matching\n" | |
337 | " -e --pager-end Immediately jump to the end in the pager\n" | |
338 | " -f --follow Follow the journal\n" | |
339 | " -n --lines[=INTEGER] Number of journal entries to show\n" | |
340 | " --no-tail Show all lines, even in follow mode\n" | |
341 | " -r --reverse Show the newest entries first\n" | |
342 | " -o --output=STRING Change journal output mode (short, short-precise,\n" | |
343 | " short-iso, short-iso-precise, short-full,\n" | |
344 | " short-monotonic, short-unix, verbose, export,\n" | |
345 | " json, json-pretty, json-sse, json-seq, cat,\n" | |
346 | " with-unit)\n" | |
347 | " --output-fields=LIST Select fields to print in verbose/export/json modes\n" | |
348 | " --utc Express time in Coordinated Universal Time (UTC)\n" | |
349 | " -x --catalog Add message explanations where available\n" | |
350 | " --no-full Ellipsize fields\n" | |
351 | " -a --all Show all fields, including long and unprintable\n" | |
352 | " -q --quiet Do not show info messages and privilege warning\n" | |
353 | " --no-pager Do not pipe output into a pager\n" | |
354 | " --no-hostname Suppress output of hostname field\n" | |
355 | " -m --merge Show entries from all available journals\n" | |
356 | " -D --directory=PATH Show journal files from directory\n" | |
357 | " --file=PATH Show journal file\n" | |
358 | " --root=ROOT Operate on files below a root directory\n" | |
359 | " --interval=TIME Time interval for changing the FSS sealing key\n" | |
360 | " --verify-key=KEY Specify FSS verification key\n" | |
361 | " --force Override of the FSS key pair with --setup-keys\n" | |
362 | "\nCommands:\n" | |
363 | " -h --help Show this help text\n" | |
364 | " --version Show package version\n" | |
365 | " -N --fields List all field names currently used\n" | |
366 | " -F --field=FIELD List all values that a specified field takes\n" | |
367 | " --disk-usage Show total disk usage of all journal files\n" | |
368 | " --vacuum-size=BYTES Reduce disk usage below specified size\n" | |
369 | " --vacuum-files=INT Leave only the specified number of journal files\n" | |
370 | " --vacuum-time=TIME Remove journal files older than specified time\n" | |
371 | " --verify Verify journal file consistency\n" | |
372 | " --sync Synchronize unwritten journal messages to disk\n" | |
373 | " --relinquish-var Stop logging to disk, log to temporary file system\n" | |
374 | " --smart-relinquish-var Similar, but NOP if log directory is on root mount\n" | |
375 | " --flush Flush all journal data from /run into /var\n" | |
376 | " --rotate Request immediate rotation of the journal files\n" | |
377 | " --header Show journal header information\n" | |
378 | " --list-catalog Show all message IDs in the catalog\n" | |
379 | " --dump-catalog Show entries in the message catalog\n" | |
380 | " --update-catalog Update the message catalog database\n" | |
381 | " --setup-keys Generate a new FSS key pair\n" | |
382 | "\nSee the %s for details.\n" | |
383 | , program_invocation_short_name | |
384 | , ansi_highlight(), ansi_normal() | |
385 | , link | |
386 | ); | |
387 | ||
388 | return 0; | |
389 | } | |
390 | ||
391 | static int parse_argv(int argc, char *argv[]) { | |
392 | ||
393 | enum { | |
394 | ARG_VERSION = 0x100, | |
395 | ARG_NO_PAGER, | |
396 | ARG_NO_FULL, | |
397 | ARG_NO_TAIL, | |
398 | ARG_NEW_ID128, | |
399 | ARG_THIS_BOOT, | |
400 | ARG_LIST_BOOTS, | |
401 | ARG_USER, | |
402 | ARG_SYSTEM, | |
403 | ARG_ROOT, | |
404 | ARG_HEADER, | |
405 | ARG_SETUP_KEYS, | |
406 | ARG_FILE, | |
407 | ARG_INTERVAL, | |
408 | ARG_VERIFY, | |
409 | ARG_VERIFY_KEY, | |
410 | ARG_DISK_USAGE, | |
411 | ARG_AFTER_CURSOR, | |
412 | ARG_CURSOR_FILE, | |
413 | ARG_SHOW_CURSOR, | |
414 | ARG_USER_UNIT, | |
415 | ARG_LIST_CATALOG, | |
416 | ARG_DUMP_CATALOG, | |
417 | ARG_UPDATE_CATALOG, | |
418 | ARG_FORCE, | |
419 | ARG_CASE_SENSITIVE, | |
420 | ARG_UTC, | |
421 | ARG_SYNC, | |
422 | ARG_FLUSH, | |
423 | ARG_RELINQUISH_VAR, | |
424 | ARG_SMART_RELINQUISH_VAR, | |
425 | ARG_ROTATE, | |
426 | ARG_VACUUM_SIZE, | |
427 | ARG_VACUUM_FILES, | |
428 | ARG_VACUUM_TIME, | |
429 | ARG_NO_HOSTNAME, | |
430 | ARG_OUTPUT_FIELDS, | |
431 | }; | |
432 | ||
433 | static const struct option options[] = { | |
434 | { "help", no_argument, NULL, 'h' }, | |
435 | { "version" , no_argument, NULL, ARG_VERSION }, | |
436 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
437 | { "pager-end", no_argument, NULL, 'e' }, | |
438 | { "follow", no_argument, NULL, 'f' }, | |
439 | { "force", no_argument, NULL, ARG_FORCE }, | |
440 | { "output", required_argument, NULL, 'o' }, | |
441 | { "all", no_argument, NULL, 'a' }, | |
442 | { "full", no_argument, NULL, 'l' }, | |
443 | { "no-full", no_argument, NULL, ARG_NO_FULL }, | |
444 | { "lines", optional_argument, NULL, 'n' }, | |
445 | { "no-tail", no_argument, NULL, ARG_NO_TAIL }, | |
446 | { "new-id128", no_argument, NULL, ARG_NEW_ID128 }, /* deprecated */ | |
447 | { "quiet", no_argument, NULL, 'q' }, | |
448 | { "merge", no_argument, NULL, 'm' }, | |
449 | { "this-boot", no_argument, NULL, ARG_THIS_BOOT }, /* deprecated */ | |
450 | { "boot", optional_argument, NULL, 'b' }, | |
451 | { "list-boots", no_argument, NULL, ARG_LIST_BOOTS }, | |
452 | { "dmesg", no_argument, NULL, 'k' }, | |
453 | { "system", no_argument, NULL, ARG_SYSTEM }, | |
454 | { "user", no_argument, NULL, ARG_USER }, | |
455 | { "directory", required_argument, NULL, 'D' }, | |
456 | { "file", required_argument, NULL, ARG_FILE }, | |
457 | { "root", required_argument, NULL, ARG_ROOT }, | |
458 | { "header", no_argument, NULL, ARG_HEADER }, | |
459 | { "identifier", required_argument, NULL, 't' }, | |
460 | { "priority", required_argument, NULL, 'p' }, | |
461 | { "grep", required_argument, NULL, 'g' }, | |
462 | { "case-sensitive", optional_argument, NULL, ARG_CASE_SENSITIVE }, | |
463 | { "setup-keys", no_argument, NULL, ARG_SETUP_KEYS }, | |
464 | { "interval", required_argument, NULL, ARG_INTERVAL }, | |
465 | { "verify", no_argument, NULL, ARG_VERIFY }, | |
466 | { "verify-key", required_argument, NULL, ARG_VERIFY_KEY }, | |
467 | { "disk-usage", no_argument, NULL, ARG_DISK_USAGE }, | |
468 | { "cursor", required_argument, NULL, 'c' }, | |
469 | { "cursor-file", required_argument, NULL, ARG_CURSOR_FILE }, | |
470 | { "after-cursor", required_argument, NULL, ARG_AFTER_CURSOR }, | |
471 | { "show-cursor", no_argument, NULL, ARG_SHOW_CURSOR }, | |
472 | { "since", required_argument, NULL, 'S' }, | |
473 | { "until", required_argument, NULL, 'U' }, | |
474 | { "unit", required_argument, NULL, 'u' }, | |
475 | { "user-unit", required_argument, NULL, ARG_USER_UNIT }, | |
476 | { "field", required_argument, NULL, 'F' }, | |
477 | { "fields", no_argument, NULL, 'N' }, | |
478 | { "catalog", no_argument, NULL, 'x' }, | |
479 | { "list-catalog", no_argument, NULL, ARG_LIST_CATALOG }, | |
480 | { "dump-catalog", no_argument, NULL, ARG_DUMP_CATALOG }, | |
481 | { "update-catalog", no_argument, NULL, ARG_UPDATE_CATALOG }, | |
482 | { "reverse", no_argument, NULL, 'r' }, | |
483 | { "machine", required_argument, NULL, 'M' }, | |
484 | { "utc", no_argument, NULL, ARG_UTC }, | |
485 | { "flush", no_argument, NULL, ARG_FLUSH }, | |
486 | { "relinquish-var", no_argument, NULL, ARG_RELINQUISH_VAR }, | |
487 | { "smart-relinquish-var", no_argument, NULL, ARG_SMART_RELINQUISH_VAR }, | |
488 | { "sync", no_argument, NULL, ARG_SYNC }, | |
489 | { "rotate", no_argument, NULL, ARG_ROTATE }, | |
490 | { "vacuum-size", required_argument, NULL, ARG_VACUUM_SIZE }, | |
491 | { "vacuum-files", required_argument, NULL, ARG_VACUUM_FILES }, | |
492 | { "vacuum-time", required_argument, NULL, ARG_VACUUM_TIME }, | |
493 | { "no-hostname", no_argument, NULL, ARG_NO_HOSTNAME }, | |
494 | { "output-fields", required_argument, NULL, ARG_OUTPUT_FIELDS }, | |
495 | {} | |
496 | }; | |
497 | ||
498 | int c, r; | |
499 | ||
500 | assert(argc >= 0); | |
501 | assert(argv); | |
502 | ||
503 | while ((c = getopt_long(argc, argv, "hefo:aln::qmb::kD:p:g:c:S:U:t:u:NF:xrM:", options, NULL)) >= 0) | |
504 | ||
505 | switch (c) { | |
506 | ||
507 | case 'h': | |
508 | return help(); | |
509 | ||
510 | case ARG_VERSION: | |
511 | return version(); | |
512 | ||
513 | case ARG_NO_PAGER: | |
514 | arg_pager_flags |= PAGER_DISABLE; | |
515 | break; | |
516 | ||
517 | case 'e': | |
518 | arg_pager_flags |= PAGER_JUMP_TO_END; | |
519 | ||
520 | if (arg_lines == ARG_LINES_DEFAULT) | |
521 | arg_lines = 1000; | |
522 | ||
523 | break; | |
524 | ||
525 | case 'f': | |
526 | arg_follow = true; | |
527 | break; | |
528 | ||
529 | case 'o': | |
530 | if (streq(optarg, "help")) { | |
531 | DUMP_STRING_TABLE(output_mode, OutputMode, _OUTPUT_MODE_MAX); | |
532 | return 0; | |
533 | } | |
534 | ||
535 | arg_output = output_mode_from_string(optarg); | |
536 | if (arg_output < 0) { | |
537 | log_error("Unknown output format '%s'.", optarg); | |
538 | return -EINVAL; | |
539 | } | |
540 | ||
541 | if (IN_SET(arg_output, OUTPUT_EXPORT, OUTPUT_JSON, OUTPUT_JSON_PRETTY, OUTPUT_JSON_SSE, OUTPUT_JSON_SEQ, OUTPUT_CAT)) | |
542 | arg_quiet = true; | |
543 | ||
544 | break; | |
545 | ||
546 | case 'l': | |
547 | arg_full = true; | |
548 | break; | |
549 | ||
550 | case ARG_NO_FULL: | |
551 | arg_full = false; | |
552 | break; | |
553 | ||
554 | case 'a': | |
555 | arg_all = true; | |
556 | break; | |
557 | ||
558 | case 'n': | |
559 | if (optarg) { | |
560 | if (streq(optarg, "all")) | |
561 | arg_lines = ARG_LINES_ALL; | |
562 | else { | |
563 | r = safe_atoi(optarg, &arg_lines); | |
564 | if (r < 0 || arg_lines < 0) { | |
565 | log_error("Failed to parse lines '%s'", optarg); | |
566 | return -EINVAL; | |
567 | } | |
568 | } | |
569 | } else { | |
570 | arg_lines = 10; | |
571 | ||
572 | /* Hmm, no argument? Maybe the next | |
573 | * word on the command line is | |
574 | * supposed to be the argument? Let's | |
575 | * see if there is one, and is | |
576 | * parsable. */ | |
577 | if (optind < argc) { | |
578 | int n; | |
579 | if (streq(argv[optind], "all")) { | |
580 | arg_lines = ARG_LINES_ALL; | |
581 | optind++; | |
582 | } else if (safe_atoi(argv[optind], &n) >= 0 && n >= 0) { | |
583 | arg_lines = n; | |
584 | optind++; | |
585 | } | |
586 | } | |
587 | } | |
588 | ||
589 | break; | |
590 | ||
591 | case ARG_NO_TAIL: | |
592 | arg_no_tail = true; | |
593 | break; | |
594 | ||
595 | case ARG_NEW_ID128: | |
596 | arg_action = ACTION_NEW_ID128; | |
597 | break; | |
598 | ||
599 | case 'q': | |
600 | arg_quiet = true; | |
601 | break; | |
602 | ||
603 | case 'm': | |
604 | arg_merge = true; | |
605 | break; | |
606 | ||
607 | case ARG_THIS_BOOT: | |
608 | arg_boot = true; | |
609 | arg_boot_id = SD_ID128_NULL; | |
610 | arg_boot_offset = 0; | |
611 | break; | |
612 | ||
613 | case 'b': | |
614 | arg_boot = true; | |
615 | arg_boot_id = SD_ID128_NULL; | |
616 | arg_boot_offset = 0; | |
617 | ||
618 | if (optarg) { | |
619 | r = parse_boot_descriptor(optarg, &arg_boot_id, &arg_boot_offset); | |
620 | if (r < 0) | |
621 | return log_error_errno(r, "Failed to parse boot descriptor '%s'", optarg); | |
622 | ||
623 | arg_boot = r; | |
624 | ||
625 | /* Hmm, no argument? Maybe the next | |
626 | * word on the command line is | |
627 | * supposed to be the argument? Let's | |
628 | * see if there is one and is parsable | |
629 | * as a boot descriptor... */ | |
630 | } else if (optind < argc) { | |
631 | r = parse_boot_descriptor(argv[optind], &arg_boot_id, &arg_boot_offset); | |
632 | if (r >= 0) { | |
633 | arg_boot = r; | |
634 | optind++; | |
635 | } | |
636 | } | |
637 | break; | |
638 | ||
639 | case ARG_LIST_BOOTS: | |
640 | arg_action = ACTION_LIST_BOOTS; | |
641 | break; | |
642 | ||
643 | case 'k': | |
644 | arg_boot = arg_dmesg = true; | |
645 | break; | |
646 | ||
647 | case ARG_SYSTEM: | |
648 | arg_journal_type |= SD_JOURNAL_SYSTEM; | |
649 | break; | |
650 | ||
651 | case ARG_USER: | |
652 | arg_journal_type |= SD_JOURNAL_CURRENT_USER; | |
653 | break; | |
654 | ||
655 | case 'M': | |
656 | arg_machine = optarg; | |
657 | break; | |
658 | ||
659 | case 'D': | |
660 | arg_directory = optarg; | |
661 | break; | |
662 | ||
663 | case ARG_FILE: | |
664 | if (streq(optarg, "-")) | |
665 | /* An undocumented feature: we can read journal files from STDIN. We don't document | |
666 | * this though, since after all we only support this for mmap-able, seekable files, and | |
667 | * not for example pipes which are probably the primary usecase for reading things from | |
668 | * STDIN. To avoid confusion we hence don't document this feature. */ | |
669 | arg_file_stdin = true; | |
670 | else { | |
671 | r = glob_extend(&arg_file, optarg); | |
672 | if (r < 0) | |
673 | return log_error_errno(r, "Failed to add paths: %m"); | |
674 | } | |
675 | break; | |
676 | ||
677 | case ARG_ROOT: | |
678 | r = parse_path_argument_and_warn(optarg, true, &arg_root); | |
679 | if (r < 0) | |
680 | return r; | |
681 | break; | |
682 | ||
683 | case 'c': | |
684 | arg_cursor = optarg; | |
685 | break; | |
686 | ||
687 | case ARG_CURSOR_FILE: | |
688 | arg_cursor_file = optarg; | |
689 | break; | |
690 | ||
691 | case ARG_AFTER_CURSOR: | |
692 | arg_after_cursor = optarg; | |
693 | break; | |
694 | ||
695 | case ARG_SHOW_CURSOR: | |
696 | arg_show_cursor = true; | |
697 | break; | |
698 | ||
699 | case ARG_HEADER: | |
700 | arg_action = ACTION_PRINT_HEADER; | |
701 | break; | |
702 | ||
703 | case ARG_VERIFY: | |
704 | arg_action = ACTION_VERIFY; | |
705 | break; | |
706 | ||
707 | case ARG_DISK_USAGE: | |
708 | arg_action = ACTION_DISK_USAGE; | |
709 | break; | |
710 | ||
711 | case ARG_VACUUM_SIZE: | |
712 | r = parse_size(optarg, 1024, &arg_vacuum_size); | |
713 | if (r < 0) { | |
714 | log_error("Failed to parse vacuum size: %s", optarg); | |
715 | return r; | |
716 | } | |
717 | ||
718 | arg_action = arg_action == ACTION_ROTATE ? ACTION_ROTATE_AND_VACUUM : ACTION_VACUUM; | |
719 | break; | |
720 | ||
721 | case ARG_VACUUM_FILES: | |
722 | r = safe_atou64(optarg, &arg_vacuum_n_files); | |
723 | if (r < 0) { | |
724 | log_error("Failed to parse vacuum files: %s", optarg); | |
725 | return r; | |
726 | } | |
727 | ||
728 | arg_action = arg_action == ACTION_ROTATE ? ACTION_ROTATE_AND_VACUUM : ACTION_VACUUM; | |
729 | break; | |
730 | ||
731 | case ARG_VACUUM_TIME: | |
732 | r = parse_sec(optarg, &arg_vacuum_time); | |
733 | if (r < 0) { | |
734 | log_error("Failed to parse vacuum time: %s", optarg); | |
735 | return r; | |
736 | } | |
737 | ||
738 | arg_action = arg_action == ACTION_ROTATE ? ACTION_ROTATE_AND_VACUUM : ACTION_VACUUM; | |
739 | break; | |
740 | ||
741 | #if HAVE_GCRYPT | |
742 | case ARG_FORCE: | |
743 | arg_force = true; | |
744 | break; | |
745 | ||
746 | case ARG_SETUP_KEYS: | |
747 | arg_action = ACTION_SETUP_KEYS; | |
748 | break; | |
749 | ||
750 | case ARG_VERIFY_KEY: | |
751 | arg_action = ACTION_VERIFY; | |
752 | r = free_and_strdup(&arg_verify_key, optarg); | |
753 | if (r < 0) | |
754 | return r; | |
755 | /* Use memset not explicit_bzero() or similar so this doesn't look confusing | |
756 | * in ps or htop output. */ | |
757 | memset(optarg, 'x', strlen(optarg)); | |
758 | ||
759 | arg_merge = false; | |
760 | break; | |
761 | ||
762 | case ARG_INTERVAL: | |
763 | r = parse_sec(optarg, &arg_interval); | |
764 | if (r < 0 || arg_interval <= 0) { | |
765 | log_error("Failed to parse sealing key change interval: %s", optarg); | |
766 | return -EINVAL; | |
767 | } | |
768 | break; | |
769 | #else | |
770 | case ARG_SETUP_KEYS: | |
771 | case ARG_VERIFY_KEY: | |
772 | case ARG_INTERVAL: | |
773 | case ARG_FORCE: | |
774 | log_error("Compiled without forward-secure sealing support."); | |
775 | return -EOPNOTSUPP; | |
776 | #endif | |
777 | ||
778 | case 'p': { | |
779 | const char *dots; | |
780 | ||
781 | dots = strstr(optarg, ".."); | |
782 | if (dots) { | |
783 | char *a; | |
784 | int from, to, i; | |
785 | ||
786 | /* a range */ | |
787 | a = strndup(optarg, dots - optarg); | |
788 | if (!a) | |
789 | return log_oom(); | |
790 | ||
791 | from = log_level_from_string(a); | |
792 | to = log_level_from_string(dots + 2); | |
793 | free(a); | |
794 | ||
795 | if (from < 0 || to < 0) { | |
796 | log_error("Failed to parse log level range %s", optarg); | |
797 | return -EINVAL; | |
798 | } | |
799 | ||
800 | arg_priorities = 0; | |
801 | ||
802 | if (from < to) { | |
803 | for (i = from; i <= to; i++) | |
804 | arg_priorities |= 1 << i; | |
805 | } else { | |
806 | for (i = to; i <= from; i++) | |
807 | arg_priorities |= 1 << i; | |
808 | } | |
809 | ||
810 | } else { | |
811 | int p, i; | |
812 | ||
813 | p = log_level_from_string(optarg); | |
814 | if (p < 0) { | |
815 | log_error("Unknown log level %s", optarg); | |
816 | return -EINVAL; | |
817 | } | |
818 | ||
819 | arg_priorities = 0; | |
820 | ||
821 | for (i = 0; i <= p; i++) | |
822 | arg_priorities |= 1 << i; | |
823 | } | |
824 | ||
825 | break; | |
826 | } | |
827 | ||
828 | #if HAVE_PCRE2 | |
829 | case 'g': | |
830 | arg_pattern = optarg; | |
831 | break; | |
832 | ||
833 | case ARG_CASE_SENSITIVE: | |
834 | if (optarg) { | |
835 | r = parse_boolean(optarg); | |
836 | if (r < 0) | |
837 | return log_error_errno(r, "Bad --case-sensitive= argument \"%s\": %m", optarg); | |
838 | arg_case_sensitive = r; | |
839 | } else | |
840 | arg_case_sensitive = true; | |
841 | ||
842 | break; | |
843 | #else | |
844 | case 'g': | |
845 | case ARG_CASE_SENSITIVE: | |
846 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "Compiled without pattern matching support"); | |
847 | #endif | |
848 | ||
849 | case 'S': | |
850 | r = parse_timestamp(optarg, &arg_since); | |
851 | if (r < 0) { | |
852 | log_error("Failed to parse timestamp: %s", optarg); | |
853 | return -EINVAL; | |
854 | } | |
855 | arg_since_set = true; | |
856 | break; | |
857 | ||
858 | case 'U': | |
859 | r = parse_timestamp(optarg, &arg_until); | |
860 | if (r < 0) { | |
861 | log_error("Failed to parse timestamp: %s", optarg); | |
862 | return -EINVAL; | |
863 | } | |
864 | arg_until_set = true; | |
865 | break; | |
866 | ||
867 | case 't': | |
868 | r = strv_extend(&arg_syslog_identifier, optarg); | |
869 | if (r < 0) | |
870 | return log_oom(); | |
871 | break; | |
872 | ||
873 | case 'u': | |
874 | r = strv_extend(&arg_system_units, optarg); | |
875 | if (r < 0) | |
876 | return log_oom(); | |
877 | break; | |
878 | ||
879 | case ARG_USER_UNIT: | |
880 | r = strv_extend(&arg_user_units, optarg); | |
881 | if (r < 0) | |
882 | return log_oom(); | |
883 | break; | |
884 | ||
885 | case 'F': | |
886 | arg_action = ACTION_LIST_FIELDS; | |
887 | arg_field = optarg; | |
888 | break; | |
889 | ||
890 | case 'N': | |
891 | arg_action = ACTION_LIST_FIELD_NAMES; | |
892 | break; | |
893 | ||
894 | case ARG_NO_HOSTNAME: | |
895 | arg_no_hostname = true; | |
896 | break; | |
897 | ||
898 | case 'x': | |
899 | arg_catalog = true; | |
900 | break; | |
901 | ||
902 | case ARG_LIST_CATALOG: | |
903 | arg_action = ACTION_LIST_CATALOG; | |
904 | break; | |
905 | ||
906 | case ARG_DUMP_CATALOG: | |
907 | arg_action = ACTION_DUMP_CATALOG; | |
908 | break; | |
909 | ||
910 | case ARG_UPDATE_CATALOG: | |
911 | arg_action = ACTION_UPDATE_CATALOG; | |
912 | break; | |
913 | ||
914 | case 'r': | |
915 | arg_reverse = true; | |
916 | break; | |
917 | ||
918 | case ARG_UTC: | |
919 | arg_utc = true; | |
920 | break; | |
921 | ||
922 | case ARG_FLUSH: | |
923 | arg_action = ACTION_FLUSH; | |
924 | break; | |
925 | ||
926 | case ARG_SMART_RELINQUISH_VAR: { | |
927 | int root_mnt_id, log_mnt_id; | |
928 | ||
929 | /* Try to be smart about relinquishing access to /var/log/journal/ during shutdown: | |
930 | * if it's on the same mount as the root file system there's no point in | |
931 | * relinquishing access and we can leave journald write to it until the very last | |
932 | * moment. */ | |
933 | ||
934 | r = path_get_mnt_id("/", &root_mnt_id); | |
935 | if (r < 0) | |
936 | log_debug_errno(r, "Failed to get root mount ID, ignoring: %m"); | |
937 | else { | |
938 | r = path_get_mnt_id("/var/log/journal/", &log_mnt_id); | |
939 | if (r < 0) | |
940 | log_debug_errno(r, "Failed to get journal directory mount ID, ignoring: %m"); | |
941 | else if (root_mnt_id == log_mnt_id) { | |
942 | log_debug("/var/log/journal/ is on root file system, not relinquishing access to /var."); | |
943 | return 0; | |
944 | } else | |
945 | log_debug("/var/log/journal/ is not on the root file system, relinquishing access to it."); | |
946 | } | |
947 | ||
948 | _fallthrough_; | |
949 | } | |
950 | ||
951 | case ARG_RELINQUISH_VAR: | |
952 | arg_action = ACTION_RELINQUISH_VAR; | |
953 | break; | |
954 | ||
955 | case ARG_ROTATE: | |
956 | arg_action = arg_action == ACTION_VACUUM ? ACTION_ROTATE_AND_VACUUM : ACTION_ROTATE; | |
957 | break; | |
958 | ||
959 | case ARG_SYNC: | |
960 | arg_action = ACTION_SYNC; | |
961 | break; | |
962 | ||
963 | case ARG_OUTPUT_FIELDS: { | |
964 | _cleanup_strv_free_ char **v = NULL; | |
965 | ||
966 | v = strv_split(optarg, ","); | |
967 | if (!v) | |
968 | return log_oom(); | |
969 | ||
970 | if (!arg_output_fields) | |
971 | arg_output_fields = TAKE_PTR(v); | |
972 | else { | |
973 | r = strv_extend_strv(&arg_output_fields, v, true); | |
974 | if (r < 0) | |
975 | return log_oom(); | |
976 | } | |
977 | break; | |
978 | } | |
979 | ||
980 | case '?': | |
981 | return -EINVAL; | |
982 | ||
983 | default: | |
984 | assert_not_reached("Unhandled option"); | |
985 | } | |
986 | ||
987 | if (arg_follow && !arg_no_tail && !arg_since && arg_lines == ARG_LINES_DEFAULT) | |
988 | arg_lines = 10; | |
989 | ||
990 | if (!!arg_directory + !!arg_file + !!arg_machine + !!arg_root > 1) { | |
991 | log_error("Please specify at most one of -D/--directory=, --file=, -M/--machine=, --root."); | |
992 | return -EINVAL; | |
993 | } | |
994 | ||
995 | if (arg_since_set && arg_until_set && arg_since > arg_until) { | |
996 | log_error("--since= must be before --until=."); | |
997 | return -EINVAL; | |
998 | } | |
999 | ||
1000 | if (!!arg_cursor + !!arg_after_cursor + !!arg_since_set > 1) { | |
1001 | log_error("Please specify only one of --since=, --cursor=, and --after-cursor."); | |
1002 | return -EINVAL; | |
1003 | } | |
1004 | ||
1005 | if (arg_follow && arg_reverse) { | |
1006 | log_error("Please specify either --reverse= or --follow=, not both."); | |
1007 | return -EINVAL; | |
1008 | } | |
1009 | ||
1010 | if (!IN_SET(arg_action, ACTION_SHOW, ACTION_DUMP_CATALOG, ACTION_LIST_CATALOG) && optind < argc) { | |
1011 | log_error("Extraneous arguments starting with '%s'", argv[optind]); | |
1012 | return -EINVAL; | |
1013 | } | |
1014 | ||
1015 | if ((arg_boot || arg_action == ACTION_LIST_BOOTS) && arg_merge) { | |
1016 | log_error("Using --boot or --list-boots with --merge is not supported."); | |
1017 | return -EINVAL; | |
1018 | } | |
1019 | ||
1020 | if (!strv_isempty(arg_system_units) && arg_journal_type == SD_JOURNAL_CURRENT_USER) { | |
1021 | /* Specifying --user and --unit= at the same time makes no sense (as the former excludes the user | |
1022 | * journal, but the latter excludes the system journal, thus resulting in empty output). Let's be nice | |
1023 | * to users, and automatically turn --unit= into --user-unit= if combined with --user. */ | |
1024 | r = strv_extend_strv(&arg_user_units, arg_system_units, true); | |
1025 | if (r < 0) | |
1026 | return r; | |
1027 | ||
1028 | arg_system_units = strv_free(arg_system_units); | |
1029 | } | |
1030 | ||
1031 | #if HAVE_PCRE2 | |
1032 | if (arg_pattern) { | |
1033 | unsigned flags; | |
1034 | ||
1035 | if (arg_case_sensitive >= 0) | |
1036 | flags = !arg_case_sensitive * PCRE2_CASELESS; | |
1037 | else { | |
1038 | _cleanup_(pcre2_match_data_freep) pcre2_match_data *md = NULL; | |
1039 | bool has_case; | |
1040 | _cleanup_(pcre2_code_freep) pcre2_code *cs = NULL; | |
1041 | ||
1042 | md = pcre2_match_data_create(1, NULL); | |
1043 | if (!md) | |
1044 | return log_oom(); | |
1045 | ||
1046 | r = pattern_compile("[[:upper:]]", 0, &cs); | |
1047 | if (r < 0) | |
1048 | return r; | |
1049 | ||
1050 | r = pcre2_match(cs, (PCRE2_SPTR8) arg_pattern, PCRE2_ZERO_TERMINATED, 0, 0, md, NULL); | |
1051 | has_case = r >= 0; | |
1052 | ||
1053 | flags = !has_case * PCRE2_CASELESS; | |
1054 | } | |
1055 | ||
1056 | log_debug("Doing case %s matching based on %s", | |
1057 | flags & PCRE2_CASELESS ? "insensitive" : "sensitive", | |
1058 | arg_case_sensitive >= 0 ? "request" : "pattern casing"); | |
1059 | ||
1060 | r = pattern_compile(arg_pattern, flags, &arg_compiled_pattern); | |
1061 | if (r < 0) | |
1062 | return r; | |
1063 | } | |
1064 | #endif | |
1065 | ||
1066 | return 1; | |
1067 | } | |
1068 | ||
1069 | static int add_matches(sd_journal *j, char **args) { | |
1070 | char **i; | |
1071 | bool have_term = false; | |
1072 | ||
1073 | assert(j); | |
1074 | ||
1075 | STRV_FOREACH(i, args) { | |
1076 | int r; | |
1077 | ||
1078 | if (streq(*i, "+")) { | |
1079 | if (!have_term) | |
1080 | break; | |
1081 | r = sd_journal_add_disjunction(j); | |
1082 | have_term = false; | |
1083 | ||
1084 | } else if (path_is_absolute(*i)) { | |
1085 | _cleanup_free_ char *p = NULL, *t = NULL, *t2 = NULL, *interpreter = NULL; | |
1086 | struct stat st; | |
1087 | ||
1088 | r = chase_symlinks(*i, NULL, CHASE_TRAIL_SLASH, &p, NULL); | |
1089 | if (r < 0) | |
1090 | return log_error_errno(r, "Couldn't canonicalize path: %m"); | |
1091 | ||
1092 | if (lstat(p, &st) < 0) | |
1093 | return log_error_errno(errno, "Couldn't stat file: %m"); | |
1094 | ||
1095 | if (S_ISREG(st.st_mode) && (0111 & st.st_mode)) { | |
1096 | if (executable_is_script(p, &interpreter) > 0) { | |
1097 | _cleanup_free_ char *comm; | |
1098 | ||
1099 | comm = strndup(basename(p), 15); | |
1100 | if (!comm) | |
1101 | return log_oom(); | |
1102 | ||
1103 | t = strjoin("_COMM=", comm); | |
1104 | if (!t) | |
1105 | return log_oom(); | |
1106 | ||
1107 | /* Append _EXE only if the interpreter is not a link. | |
1108 | Otherwise, it might be outdated often. */ | |
1109 | if (lstat(interpreter, &st) == 0 && !S_ISLNK(st.st_mode)) { | |
1110 | t2 = strjoin("_EXE=", interpreter); | |
1111 | if (!t2) | |
1112 | return log_oom(); | |
1113 | } | |
1114 | } else { | |
1115 | t = strjoin("_EXE=", p); | |
1116 | if (!t) | |
1117 | return log_oom(); | |
1118 | } | |
1119 | ||
1120 | r = sd_journal_add_match(j, t, 0); | |
1121 | ||
1122 | if (r >=0 && t2) | |
1123 | r = sd_journal_add_match(j, t2, 0); | |
1124 | ||
1125 | } else if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode)) { | |
1126 | r = add_matches_for_device(j, p); | |
1127 | if (r < 0) | |
1128 | return r; | |
1129 | } else | |
1130 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
1131 | "File is neither a device node, nor regular file, nor executable: %s", | |
1132 | *i); | |
1133 | ||
1134 | have_term = true; | |
1135 | } else { | |
1136 | r = sd_journal_add_match(j, *i, 0); | |
1137 | have_term = true; | |
1138 | } | |
1139 | ||
1140 | if (r < 0) | |
1141 | return log_error_errno(r, "Failed to add match '%s': %m", *i); | |
1142 | } | |
1143 | ||
1144 | if (!strv_isempty(args) && !have_term) | |
1145 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
1146 | "\"+\" can only be used between terms"); | |
1147 | ||
1148 | return 0; | |
1149 | } | |
1150 | ||
1151 | static void boot_id_free_all(BootId *l) { | |
1152 | ||
1153 | while (l) { | |
1154 | BootId *i = l; | |
1155 | LIST_REMOVE(boot_list, l, i); | |
1156 | free(i); | |
1157 | } | |
1158 | } | |
1159 | ||
1160 | static int discover_next_boot(sd_journal *j, | |
1161 | sd_id128_t previous_boot_id, | |
1162 | bool advance_older, | |
1163 | BootId **ret) { | |
1164 | ||
1165 | _cleanup_free_ BootId *next_boot = NULL; | |
1166 | char match[9+32+1] = "_BOOT_ID="; | |
1167 | sd_id128_t boot_id; | |
1168 | int r; | |
1169 | ||
1170 | assert(j); | |
1171 | assert(ret); | |
1172 | ||
1173 | /* We expect the journal to be on the last position of a boot | |
1174 | * (in relation to the direction we are going), so that the next | |
1175 | * invocation of sd_journal_next/previous will be from a different | |
1176 | * boot. We then collect any information we desire and then jump | |
1177 | * to the last location of the new boot by using a _BOOT_ID match | |
1178 | * coming from the other journal direction. */ | |
1179 | ||
1180 | /* Make sure we aren't restricted by any _BOOT_ID matches, so that | |
1181 | * we can actually advance to a *different* boot. */ | |
1182 | sd_journal_flush_matches(j); | |
1183 | ||
1184 | do { | |
1185 | if (advance_older) | |
1186 | r = sd_journal_previous(j); | |
1187 | else | |
1188 | r = sd_journal_next(j); | |
1189 | if (r < 0) | |
1190 | return r; | |
1191 | else if (r == 0) | |
1192 | return 0; /* End of journal, yay. */ | |
1193 | ||
1194 | r = sd_journal_get_monotonic_usec(j, NULL, &boot_id); | |
1195 | if (r < 0) | |
1196 | return r; | |
1197 | ||
1198 | /* We iterate through this in a loop, until the boot ID differs from the previous one. Note that | |
1199 | * normally, this will only require a single iteration, as we seeked to the last entry of the previous | |
1200 | * boot entry already. However, it might happen that the per-journal-field entry arrays are less | |
1201 | * complete than the main entry array, and hence might reference an entry that's not actually the last | |
1202 | * one of the boot ID as last one. Let's hence use the per-field array is initial seek position to | |
1203 | * speed things up, but let's not trust that it is complete, and hence, manually advance as | |
1204 | * necessary. */ | |
1205 | ||
1206 | } while (sd_id128_equal(boot_id, previous_boot_id)); | |
1207 | ||
1208 | next_boot = new0(BootId, 1); | |
1209 | if (!next_boot) | |
1210 | return -ENOMEM; | |
1211 | ||
1212 | next_boot->id = boot_id; | |
1213 | ||
1214 | r = sd_journal_get_realtime_usec(j, &next_boot->first); | |
1215 | if (r < 0) | |
1216 | return r; | |
1217 | ||
1218 | /* Now seek to the last occurrence of this boot ID. */ | |
1219 | sd_id128_to_string(next_boot->id, match + 9); | |
1220 | r = sd_journal_add_match(j, match, sizeof(match) - 1); | |
1221 | if (r < 0) | |
1222 | return r; | |
1223 | ||
1224 | if (advance_older) | |
1225 | r = sd_journal_seek_head(j); | |
1226 | else | |
1227 | r = sd_journal_seek_tail(j); | |
1228 | if (r < 0) | |
1229 | return r; | |
1230 | ||
1231 | if (advance_older) | |
1232 | r = sd_journal_next(j); | |
1233 | else | |
1234 | r = sd_journal_previous(j); | |
1235 | if (r < 0) | |
1236 | return r; | |
1237 | else if (r == 0) | |
1238 | return log_debug_errno(SYNTHETIC_ERRNO(ENODATA), | |
1239 | "Whoopsie! We found a boot ID but can't read its last entry."); /* This shouldn't happen. We just came from this very boot ID. */ | |
1240 | ||
1241 | r = sd_journal_get_realtime_usec(j, &next_boot->last); | |
1242 | if (r < 0) | |
1243 | return r; | |
1244 | ||
1245 | *ret = TAKE_PTR(next_boot); | |
1246 | ||
1247 | return 0; | |
1248 | } | |
1249 | ||
1250 | static int get_boots( | |
1251 | sd_journal *j, | |
1252 | BootId **boots, | |
1253 | sd_id128_t *boot_id, | |
1254 | int offset) { | |
1255 | ||
1256 | bool skip_once; | |
1257 | int r, count = 0; | |
1258 | BootId *head = NULL, *tail = NULL, *id; | |
1259 | const bool advance_older = boot_id && offset <= 0; | |
1260 | sd_id128_t previous_boot_id; | |
1261 | ||
1262 | assert(j); | |
1263 | ||
1264 | /* Adjust for the asymmetry that offset 0 is | |
1265 | * the last (and current) boot, while 1 is considered the | |
1266 | * (chronological) first boot in the journal. */ | |
1267 | skip_once = boot_id && sd_id128_is_null(*boot_id) && offset <= 0; | |
1268 | ||
1269 | /* Advance to the earliest/latest occurrence of our reference | |
1270 | * boot ID (taking our lookup direction into account), so that | |
1271 | * discover_next_boot() can do its job. | |
1272 | * If no reference is given, the journal head/tail will do, | |
1273 | * they're "virtual" boots after all. */ | |
1274 | if (boot_id && !sd_id128_is_null(*boot_id)) { | |
1275 | char match[9+32+1] = "_BOOT_ID="; | |
1276 | ||
1277 | sd_journal_flush_matches(j); | |
1278 | ||
1279 | sd_id128_to_string(*boot_id, match + 9); | |
1280 | r = sd_journal_add_match(j, match, sizeof(match) - 1); | |
1281 | if (r < 0) | |
1282 | return r; | |
1283 | ||
1284 | if (advance_older) | |
1285 | r = sd_journal_seek_head(j); /* seek to oldest */ | |
1286 | else | |
1287 | r = sd_journal_seek_tail(j); /* seek to newest */ | |
1288 | if (r < 0) | |
1289 | return r; | |
1290 | ||
1291 | if (advance_older) | |
1292 | r = sd_journal_next(j); /* read the oldest entry */ | |
1293 | else | |
1294 | r = sd_journal_previous(j); /* read the most recently added entry */ | |
1295 | if (r < 0) | |
1296 | return r; | |
1297 | else if (r == 0) | |
1298 | goto finish; | |
1299 | else if (offset == 0) { | |
1300 | count = 1; | |
1301 | goto finish; | |
1302 | } | |
1303 | ||
1304 | /* At this point the read pointer is positioned at the oldest/newest occurrence of the reference boot | |
1305 | * ID. After flushing the matches, one more invocation of _previous()/_next() will hence place us at | |
1306 | * the following entry, which must then have an older/newer boot ID */ | |
1307 | } else { | |
1308 | ||
1309 | if (advance_older) | |
1310 | r = sd_journal_seek_tail(j); /* seek to newest */ | |
1311 | else | |
1312 | r = sd_journal_seek_head(j); /* seek to oldest */ | |
1313 | if (r < 0) | |
1314 | return r; | |
1315 | ||
1316 | /* No sd_journal_next()/_previous() here. | |
1317 | * | |
1318 | * At this point the read pointer is positioned after the newest/before the oldest entry in the whole | |
1319 | * journal. The next invocation of _previous()/_next() will hence position us at the newest/oldest | |
1320 | * entry we have. */ | |
1321 | } | |
1322 | ||
1323 | previous_boot_id = SD_ID128_NULL; | |
1324 | for (;;) { | |
1325 | _cleanup_free_ BootId *current = NULL; | |
1326 | ||
1327 | r = discover_next_boot(j, previous_boot_id, advance_older, ¤t); | |
1328 | if (r < 0) { | |
1329 | boot_id_free_all(head); | |
1330 | return r; | |
1331 | } | |
1332 | ||
1333 | if (!current) | |
1334 | break; | |
1335 | ||
1336 | previous_boot_id = current->id; | |
1337 | ||
1338 | if (boot_id) { | |
1339 | if (!skip_once) | |
1340 | offset += advance_older ? 1 : -1; | |
1341 | skip_once = false; | |
1342 | ||
1343 | if (offset == 0) { | |
1344 | count = 1; | |
1345 | *boot_id = current->id; | |
1346 | break; | |
1347 | } | |
1348 | } else { | |
1349 | LIST_FOREACH(boot_list, id, head) { | |
1350 | if (sd_id128_equal(id->id, current->id)) { | |
1351 | /* boot id already stored, something wrong with the journal files */ | |
1352 | /* exiting as otherwise this problem would cause forever loop */ | |
1353 | goto finish; | |
1354 | } | |
1355 | } | |
1356 | LIST_INSERT_AFTER(boot_list, head, tail, current); | |
1357 | tail = TAKE_PTR(current); | |
1358 | count++; | |
1359 | } | |
1360 | } | |
1361 | ||
1362 | finish: | |
1363 | if (boots) | |
1364 | *boots = head; | |
1365 | ||
1366 | sd_journal_flush_matches(j); | |
1367 | ||
1368 | return count; | |
1369 | } | |
1370 | ||
1371 | static int list_boots(sd_journal *j) { | |
1372 | int w, i, count; | |
1373 | BootId *id, *all_ids; | |
1374 | ||
1375 | assert(j); | |
1376 | ||
1377 | count = get_boots(j, &all_ids, NULL, 0); | |
1378 | if (count < 0) | |
1379 | return log_error_errno(count, "Failed to determine boots: %m"); | |
1380 | if (count == 0) | |
1381 | return count; | |
1382 | ||
1383 | (void) pager_open(arg_pager_flags); | |
1384 | ||
1385 | /* numbers are one less, but we need an extra char for the sign */ | |
1386 | w = DECIMAL_STR_WIDTH(count - 1) + 1; | |
1387 | ||
1388 | i = 0; | |
1389 | LIST_FOREACH(boot_list, id, all_ids) { | |
1390 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX]; | |
1391 | ||
1392 | printf("% *i " SD_ID128_FORMAT_STR " %s—%s\n", | |
1393 | w, i - count + 1, | |
1394 | SD_ID128_FORMAT_VAL(id->id), | |
1395 | format_timestamp_maybe_utc(a, sizeof(a), id->first), | |
1396 | format_timestamp_maybe_utc(b, sizeof(b), id->last)); | |
1397 | i++; | |
1398 | } | |
1399 | ||
1400 | boot_id_free_all(all_ids); | |
1401 | ||
1402 | return 0; | |
1403 | } | |
1404 | ||
1405 | static int add_boot(sd_journal *j) { | |
1406 | char match[9+32+1] = "_BOOT_ID="; | |
1407 | sd_id128_t boot_id; | |
1408 | int r; | |
1409 | ||
1410 | assert(j); | |
1411 | ||
1412 | if (!arg_boot) | |
1413 | return 0; | |
1414 | ||
1415 | /* Take a shortcut and use the current boot_id, which we can do very quickly. | |
1416 | * We can do this only when we logs are coming from the current machine, | |
1417 | * so take the slow path if log location is specified. */ | |
1418 | if (arg_boot_offset == 0 && sd_id128_is_null(arg_boot_id) && | |
1419 | !arg_directory && !arg_file && !arg_root) | |
1420 | ||
1421 | return add_match_this_boot(j, arg_machine); | |
1422 | ||
1423 | boot_id = arg_boot_id; | |
1424 | r = get_boots(j, NULL, &boot_id, arg_boot_offset); | |
1425 | assert(r <= 1); | |
1426 | if (r <= 0) { | |
1427 | const char *reason = (r == 0) ? "No such boot ID in journal" : strerror_safe(r); | |
1428 | ||
1429 | if (sd_id128_is_null(arg_boot_id)) | |
1430 | log_error("Data from the specified boot (%+i) is not available: %s", | |
1431 | arg_boot_offset, reason); | |
1432 | else | |
1433 | log_error("Data from the specified boot ("SD_ID128_FORMAT_STR") is not available: %s", | |
1434 | SD_ID128_FORMAT_VAL(arg_boot_id), reason); | |
1435 | ||
1436 | return r == 0 ? -ENODATA : r; | |
1437 | } | |
1438 | ||
1439 | sd_id128_to_string(boot_id, match + 9); | |
1440 | ||
1441 | r = sd_journal_add_match(j, match, sizeof(match) - 1); | |
1442 | if (r < 0) | |
1443 | return log_error_errno(r, "Failed to add match: %m"); | |
1444 | ||
1445 | r = sd_journal_add_conjunction(j); | |
1446 | if (r < 0) | |
1447 | return log_error_errno(r, "Failed to add conjunction: %m"); | |
1448 | ||
1449 | return 0; | |
1450 | } | |
1451 | ||
1452 | static int add_dmesg(sd_journal *j) { | |
1453 | int r; | |
1454 | assert(j); | |
1455 | ||
1456 | if (!arg_dmesg) | |
1457 | return 0; | |
1458 | ||
1459 | r = sd_journal_add_match(j, "_TRANSPORT=kernel", | |
1460 | STRLEN("_TRANSPORT=kernel")); | |
1461 | if (r < 0) | |
1462 | return log_error_errno(r, "Failed to add match: %m"); | |
1463 | ||
1464 | r = sd_journal_add_conjunction(j); | |
1465 | if (r < 0) | |
1466 | return log_error_errno(r, "Failed to add conjunction: %m"); | |
1467 | ||
1468 | return 0; | |
1469 | } | |
1470 | ||
1471 | static int get_possible_units( | |
1472 | sd_journal *j, | |
1473 | const char *fields, | |
1474 | char **patterns, | |
1475 | Set **units) { | |
1476 | ||
1477 | _cleanup_set_free_free_ Set *found; | |
1478 | const char *field; | |
1479 | int r; | |
1480 | ||
1481 | found = set_new(&string_hash_ops); | |
1482 | if (!found) | |
1483 | return -ENOMEM; | |
1484 | ||
1485 | NULSTR_FOREACH(field, fields) { | |
1486 | const void *data; | |
1487 | size_t size; | |
1488 | ||
1489 | r = sd_journal_query_unique(j, field); | |
1490 | if (r < 0) | |
1491 | return r; | |
1492 | ||
1493 | SD_JOURNAL_FOREACH_UNIQUE(j, data, size) { | |
1494 | char **pattern, *eq; | |
1495 | size_t prefix; | |
1496 | _cleanup_free_ char *u = NULL; | |
1497 | ||
1498 | eq = memchr(data, '=', size); | |
1499 | if (eq) | |
1500 | prefix = eq - (char*) data + 1; | |
1501 | else | |
1502 | prefix = 0; | |
1503 | ||
1504 | u = strndup((char*) data + prefix, size - prefix); | |
1505 | if (!u) | |
1506 | return -ENOMEM; | |
1507 | ||
1508 | STRV_FOREACH(pattern, patterns) | |
1509 | if (fnmatch(*pattern, u, FNM_NOESCAPE) == 0) { | |
1510 | log_debug("Matched %s with pattern %s=%s", u, field, *pattern); | |
1511 | ||
1512 | r = set_consume(found, u); | |
1513 | u = NULL; | |
1514 | if (r < 0 && r != -EEXIST) | |
1515 | return r; | |
1516 | ||
1517 | break; | |
1518 | } | |
1519 | } | |
1520 | } | |
1521 | ||
1522 | *units = TAKE_PTR(found); | |
1523 | ||
1524 | return 0; | |
1525 | } | |
1526 | ||
1527 | /* This list is supposed to return the superset of unit names | |
1528 | * possibly matched by rules added with add_matches_for_unit... */ | |
1529 | #define SYSTEM_UNITS \ | |
1530 | "_SYSTEMD_UNIT\0" \ | |
1531 | "COREDUMP_UNIT\0" \ | |
1532 | "UNIT\0" \ | |
1533 | "OBJECT_SYSTEMD_UNIT\0" \ | |
1534 | "_SYSTEMD_SLICE\0" | |
1535 | ||
1536 | /* ... and add_matches_for_user_unit */ | |
1537 | #define USER_UNITS \ | |
1538 | "_SYSTEMD_USER_UNIT\0" \ | |
1539 | "USER_UNIT\0" \ | |
1540 | "COREDUMP_USER_UNIT\0" \ | |
1541 | "OBJECT_SYSTEMD_USER_UNIT\0" \ | |
1542 | "_SYSTEMD_USER_SLICE\0" | |
1543 | ||
1544 | static int add_units(sd_journal *j) { | |
1545 | _cleanup_strv_free_ char **patterns = NULL; | |
1546 | int r, count = 0; | |
1547 | char **i; | |
1548 | ||
1549 | assert(j); | |
1550 | ||
1551 | STRV_FOREACH(i, arg_system_units) { | |
1552 | _cleanup_free_ char *u = NULL; | |
1553 | ||
1554 | r = unit_name_mangle(*i, UNIT_NAME_MANGLE_GLOB | (arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN), &u); | |
1555 | if (r < 0) | |
1556 | return r; | |
1557 | ||
1558 | if (string_is_glob(u)) { | |
1559 | r = strv_push(&patterns, u); | |
1560 | if (r < 0) | |
1561 | return r; | |
1562 | u = NULL; | |
1563 | } else { | |
1564 | r = add_matches_for_unit(j, u); | |
1565 | if (r < 0) | |
1566 | return r; | |
1567 | r = sd_journal_add_disjunction(j); | |
1568 | if (r < 0) | |
1569 | return r; | |
1570 | count++; | |
1571 | } | |
1572 | } | |
1573 | ||
1574 | if (!strv_isempty(patterns)) { | |
1575 | _cleanup_set_free_free_ Set *units = NULL; | |
1576 | Iterator it; | |
1577 | char *u; | |
1578 | ||
1579 | r = get_possible_units(j, SYSTEM_UNITS, patterns, &units); | |
1580 | if (r < 0) | |
1581 | return r; | |
1582 | ||
1583 | SET_FOREACH(u, units, it) { | |
1584 | r = add_matches_for_unit(j, u); | |
1585 | if (r < 0) | |
1586 | return r; | |
1587 | r = sd_journal_add_disjunction(j); | |
1588 | if (r < 0) | |
1589 | return r; | |
1590 | count++; | |
1591 | } | |
1592 | } | |
1593 | ||
1594 | patterns = strv_free(patterns); | |
1595 | ||
1596 | STRV_FOREACH(i, arg_user_units) { | |
1597 | _cleanup_free_ char *u = NULL; | |
1598 | ||
1599 | r = unit_name_mangle(*i, UNIT_NAME_MANGLE_GLOB | (arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN), &u); | |
1600 | if (r < 0) | |
1601 | return r; | |
1602 | ||
1603 | if (string_is_glob(u)) { | |
1604 | r = strv_push(&patterns, u); | |
1605 | if (r < 0) | |
1606 | return r; | |
1607 | u = NULL; | |
1608 | } else { | |
1609 | r = add_matches_for_user_unit(j, u, getuid()); | |
1610 | if (r < 0) | |
1611 | return r; | |
1612 | r = sd_journal_add_disjunction(j); | |
1613 | if (r < 0) | |
1614 | return r; | |
1615 | count++; | |
1616 | } | |
1617 | } | |
1618 | ||
1619 | if (!strv_isempty(patterns)) { | |
1620 | _cleanup_set_free_free_ Set *units = NULL; | |
1621 | Iterator it; | |
1622 | char *u; | |
1623 | ||
1624 | r = get_possible_units(j, USER_UNITS, patterns, &units); | |
1625 | if (r < 0) | |
1626 | return r; | |
1627 | ||
1628 | SET_FOREACH(u, units, it) { | |
1629 | r = add_matches_for_user_unit(j, u, getuid()); | |
1630 | if (r < 0) | |
1631 | return r; | |
1632 | r = sd_journal_add_disjunction(j); | |
1633 | if (r < 0) | |
1634 | return r; | |
1635 | count++; | |
1636 | } | |
1637 | } | |
1638 | ||
1639 | /* Complain if the user request matches but nothing whatsoever was | |
1640 | * found, since otherwise everything would be matched. */ | |
1641 | if (!(strv_isempty(arg_system_units) && strv_isempty(arg_user_units)) && count == 0) | |
1642 | return -ENODATA; | |
1643 | ||
1644 | r = sd_journal_add_conjunction(j); | |
1645 | if (r < 0) | |
1646 | return r; | |
1647 | ||
1648 | return 0; | |
1649 | } | |
1650 | ||
1651 | static int add_priorities(sd_journal *j) { | |
1652 | char match[] = "PRIORITY=0"; | |
1653 | int i, r; | |
1654 | assert(j); | |
1655 | ||
1656 | if (arg_priorities == 0xFF) | |
1657 | return 0; | |
1658 | ||
1659 | for (i = LOG_EMERG; i <= LOG_DEBUG; i++) | |
1660 | if (arg_priorities & (1 << i)) { | |
1661 | match[sizeof(match)-2] = '0' + i; | |
1662 | ||
1663 | r = sd_journal_add_match(j, match, strlen(match)); | |
1664 | if (r < 0) | |
1665 | return log_error_errno(r, "Failed to add match: %m"); | |
1666 | } | |
1667 | ||
1668 | r = sd_journal_add_conjunction(j); | |
1669 | if (r < 0) | |
1670 | return log_error_errno(r, "Failed to add conjunction: %m"); | |
1671 | ||
1672 | return 0; | |
1673 | } | |
1674 | ||
1675 | static int add_syslog_identifier(sd_journal *j) { | |
1676 | int r; | |
1677 | char **i; | |
1678 | ||
1679 | assert(j); | |
1680 | ||
1681 | STRV_FOREACH(i, arg_syslog_identifier) { | |
1682 | _cleanup_free_ char *u = NULL; | |
1683 | ||
1684 | u = strjoin("SYSLOG_IDENTIFIER=", *i); | |
1685 | if (!u) | |
1686 | return -ENOMEM; | |
1687 | r = sd_journal_add_match(j, u, 0); | |
1688 | if (r < 0) | |
1689 | return r; | |
1690 | r = sd_journal_add_disjunction(j); | |
1691 | if (r < 0) | |
1692 | return r; | |
1693 | } | |
1694 | ||
1695 | r = sd_journal_add_conjunction(j); | |
1696 | if (r < 0) | |
1697 | return r; | |
1698 | ||
1699 | return 0; | |
1700 | } | |
1701 | ||
1702 | static int setup_keys(void) { | |
1703 | #if HAVE_GCRYPT | |
1704 | size_t mpk_size, seed_size, state_size, i; | |
1705 | uint8_t *mpk, *seed, *state; | |
1706 | int fd = -1, r; | |
1707 | sd_id128_t machine, boot; | |
1708 | char *p = NULL, *k = NULL; | |
1709 | struct FSSHeader h; | |
1710 | uint64_t n; | |
1711 | struct stat st; | |
1712 | ||
1713 | r = stat("/var/log/journal", &st); | |
1714 | if (r < 0 && !IN_SET(errno, ENOENT, ENOTDIR)) | |
1715 | return log_error_errno(errno, "stat(\"%s\") failed: %m", "/var/log/journal"); | |
1716 | ||
1717 | if (r < 0 || !S_ISDIR(st.st_mode)) { | |
1718 | log_error("%s is not a directory, must be using persistent logging for FSS.", | |
1719 | "/var/log/journal"); | |
1720 | return r < 0 ? -errno : -ENOTDIR; | |
1721 | } | |
1722 | ||
1723 | r = sd_id128_get_machine(&machine); | |
1724 | if (r < 0) | |
1725 | return log_error_errno(r, "Failed to get machine ID: %m"); | |
1726 | ||
1727 | r = sd_id128_get_boot(&boot); | |
1728 | if (r < 0) | |
1729 | return log_error_errno(r, "Failed to get boot ID: %m"); | |
1730 | ||
1731 | if (asprintf(&p, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss", | |
1732 | SD_ID128_FORMAT_VAL(machine)) < 0) | |
1733 | return log_oom(); | |
1734 | ||
1735 | if (arg_force) { | |
1736 | r = unlink(p); | |
1737 | if (r < 0 && errno != ENOENT) { | |
1738 | r = log_error_errno(errno, "unlink(\"%s\") failed: %m", p); | |
1739 | goto finish; | |
1740 | } | |
1741 | } else if (access(p, F_OK) >= 0) { | |
1742 | log_error("Sealing key file %s exists already. Use --force to recreate.", p); | |
1743 | r = -EEXIST; | |
1744 | goto finish; | |
1745 | } | |
1746 | ||
1747 | if (asprintf(&k, "/var/log/journal/" SD_ID128_FORMAT_STR "/fss.tmp.XXXXXX", | |
1748 | SD_ID128_FORMAT_VAL(machine)) < 0) { | |
1749 | r = log_oom(); | |
1750 | goto finish; | |
1751 | } | |
1752 | ||
1753 | mpk_size = FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR); | |
1754 | mpk = alloca(mpk_size); | |
1755 | ||
1756 | seed_size = FSPRG_RECOMMENDED_SEEDLEN; | |
1757 | seed = alloca(seed_size); | |
1758 | ||
1759 | state_size = FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR); | |
1760 | state = alloca(state_size); | |
1761 | ||
1762 | fd = open("/dev/random", O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
1763 | if (fd < 0) { | |
1764 | r = log_error_errno(errno, "Failed to open /dev/random: %m"); | |
1765 | goto finish; | |
1766 | } | |
1767 | ||
1768 | log_info("Generating seed..."); | |
1769 | r = loop_read_exact(fd, seed, seed_size, true); | |
1770 | if (r < 0) { | |
1771 | log_error_errno(r, "Failed to read random seed: %m"); | |
1772 | goto finish; | |
1773 | } | |
1774 | ||
1775 | log_info("Generating key pair..."); | |
1776 | FSPRG_GenMK(NULL, mpk, seed, seed_size, FSPRG_RECOMMENDED_SECPAR); | |
1777 | ||
1778 | log_info("Generating sealing key..."); | |
1779 | FSPRG_GenState0(state, mpk, seed, seed_size); | |
1780 | ||
1781 | assert(arg_interval > 0); | |
1782 | ||
1783 | n = now(CLOCK_REALTIME); | |
1784 | n /= arg_interval; | |
1785 | ||
1786 | safe_close(fd); | |
1787 | fd = mkostemp_safe(k); | |
1788 | if (fd < 0) { | |
1789 | r = log_error_errno(fd, "Failed to open %s: %m", k); | |
1790 | goto finish; | |
1791 | } | |
1792 | ||
1793 | /* Enable secure remove, exclusion from dump, synchronous | |
1794 | * writing and in-place updating */ | |
1795 | r = chattr_fd(fd, FS_SECRM_FL|FS_NODUMP_FL|FS_SYNC_FL|FS_NOCOW_FL, FS_SECRM_FL|FS_NODUMP_FL|FS_SYNC_FL|FS_NOCOW_FL, NULL); | |
1796 | if (r < 0) | |
1797 | log_warning_errno(r, "Failed to set file attributes: %m"); | |
1798 | ||
1799 | zero(h); | |
1800 | memcpy(h.signature, "KSHHRHLP", 8); | |
1801 | h.machine_id = machine; | |
1802 | h.boot_id = boot; | |
1803 | h.header_size = htole64(sizeof(h)); | |
1804 | h.start_usec = htole64(n * arg_interval); | |
1805 | h.interval_usec = htole64(arg_interval); | |
1806 | h.fsprg_secpar = htole16(FSPRG_RECOMMENDED_SECPAR); | |
1807 | h.fsprg_state_size = htole64(state_size); | |
1808 | ||
1809 | r = loop_write(fd, &h, sizeof(h), false); | |
1810 | if (r < 0) { | |
1811 | log_error_errno(r, "Failed to write header: %m"); | |
1812 | goto finish; | |
1813 | } | |
1814 | ||
1815 | r = loop_write(fd, state, state_size, false); | |
1816 | if (r < 0) { | |
1817 | log_error_errno(r, "Failed to write state: %m"); | |
1818 | goto finish; | |
1819 | } | |
1820 | ||
1821 | if (link(k, p) < 0) { | |
1822 | r = log_error_errno(errno, "Failed to link file: %m"); | |
1823 | goto finish; | |
1824 | } | |
1825 | ||
1826 | if (on_tty()) { | |
1827 | fprintf(stderr, | |
1828 | "\n" | |
1829 | "The new key pair has been generated. The %ssecret sealing key%s has been written to\n" | |
1830 | "the following local file. This key file is automatically updated when the\n" | |
1831 | "sealing key is advanced. It should not be used on multiple hosts.\n" | |
1832 | "\n" | |
1833 | "\t%s\n" | |
1834 | "\n" | |
1835 | "Please write down the following %ssecret verification key%s. It should be stored\n" | |
1836 | "at a safe location and should not be saved locally on disk.\n" | |
1837 | "\n\t%s", | |
1838 | ansi_highlight(), ansi_normal(), | |
1839 | p, | |
1840 | ansi_highlight(), ansi_normal(), | |
1841 | ansi_highlight_red()); | |
1842 | fflush(stderr); | |
1843 | } | |
1844 | for (i = 0; i < seed_size; i++) { | |
1845 | if (i > 0 && i % 3 == 0) | |
1846 | putchar('-'); | |
1847 | printf("%02x", ((uint8_t*) seed)[i]); | |
1848 | } | |
1849 | ||
1850 | printf("/%llx-%llx\n", (unsigned long long) n, (unsigned long long) arg_interval); | |
1851 | ||
1852 | if (on_tty()) { | |
1853 | char tsb[FORMAT_TIMESPAN_MAX], *hn; | |
1854 | ||
1855 | fprintf(stderr, | |
1856 | "%s\n" | |
1857 | "The sealing key is automatically changed every %s.\n", | |
1858 | ansi_normal(), | |
1859 | format_timespan(tsb, sizeof(tsb), arg_interval, 0)); | |
1860 | ||
1861 | hn = gethostname_malloc(); | |
1862 | ||
1863 | if (hn) { | |
1864 | hostname_cleanup(hn); | |
1865 | fprintf(stderr, "\nThe keys have been generated for host %s/" SD_ID128_FORMAT_STR ".\n", hn, SD_ID128_FORMAT_VAL(machine)); | |
1866 | } else | |
1867 | fprintf(stderr, "\nThe keys have been generated for host " SD_ID128_FORMAT_STR ".\n", SD_ID128_FORMAT_VAL(machine)); | |
1868 | ||
1869 | #if HAVE_QRENCODE | |
1870 | /* If this is not an UTF-8 system don't print any QR codes */ | |
1871 | if (is_locale_utf8()) { | |
1872 | fputs("\nTo transfer the verification key to your phone please scan the QR code below:\n\n", stderr); | |
1873 | print_qr_code(stderr, seed, seed_size, n, arg_interval, hn, machine); | |
1874 | } | |
1875 | #endif | |
1876 | free(hn); | |
1877 | } | |
1878 | ||
1879 | r = 0; | |
1880 | ||
1881 | finish: | |
1882 | safe_close(fd); | |
1883 | ||
1884 | if (k) { | |
1885 | (void) unlink(k); | |
1886 | free(k); | |
1887 | } | |
1888 | ||
1889 | free(p); | |
1890 | ||
1891 | return r; | |
1892 | #else | |
1893 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), | |
1894 | "Forward-secure sealing not available."); | |
1895 | #endif | |
1896 | } | |
1897 | ||
1898 | static int verify(sd_journal *j) { | |
1899 | int r = 0; | |
1900 | Iterator i; | |
1901 | JournalFile *f; | |
1902 | ||
1903 | assert(j); | |
1904 | ||
1905 | log_show_color(true); | |
1906 | ||
1907 | ORDERED_HASHMAP_FOREACH(f, j->files, i) { | |
1908 | int k; | |
1909 | usec_t first = 0, validated = 0, last = 0; | |
1910 | ||
1911 | #if HAVE_GCRYPT | |
1912 | if (!arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) | |
1913 | log_notice("Journal file %s has sealing enabled but verification key has not been passed using --verify-key=.", f->path); | |
1914 | #endif | |
1915 | ||
1916 | k = journal_file_verify(f, arg_verify_key, &first, &validated, &last, true); | |
1917 | if (k == -EINVAL) { | |
1918 | /* If the key was invalid give up right-away. */ | |
1919 | return k; | |
1920 | } else if (k < 0) { | |
1921 | log_warning_errno(k, "FAIL: %s (%m)", f->path); | |
1922 | r = k; | |
1923 | } else { | |
1924 | char a[FORMAT_TIMESTAMP_MAX], b[FORMAT_TIMESTAMP_MAX], c[FORMAT_TIMESPAN_MAX]; | |
1925 | log_info("PASS: %s", f->path); | |
1926 | ||
1927 | if (arg_verify_key && JOURNAL_HEADER_SEALED(f->header)) { | |
1928 | if (validated > 0) { | |
1929 | log_info("=> Validated from %s to %s, final %s entries not sealed.", | |
1930 | format_timestamp_maybe_utc(a, sizeof(a), first), | |
1931 | format_timestamp_maybe_utc(b, sizeof(b), validated), | |
1932 | format_timespan(c, sizeof(c), last > validated ? last - validated : 0, 0)); | |
1933 | } else if (last > 0) | |
1934 | log_info("=> No sealing yet, %s of entries not sealed.", | |
1935 | format_timespan(c, sizeof(c), last - first, 0)); | |
1936 | else | |
1937 | log_info("=> No sealing yet, no entries in file."); | |
1938 | } | |
1939 | } | |
1940 | } | |
1941 | ||
1942 | return r; | |
1943 | } | |
1944 | ||
1945 | static int simple_varlink_call(const char *option, const char *method) { | |
1946 | _cleanup_(varlink_flush_close_unrefp) Varlink *link = NULL; | |
1947 | const char *error; | |
1948 | int r; | |
1949 | ||
1950 | if (arg_machine) | |
1951 | return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "%s is not supported in conjunction with --machine=.", option); | |
1952 | ||
1953 | r = varlink_connect_address(&link, "/run/systemd/journal/io.systemd.journal"); | |
1954 | if (r < 0) | |
1955 | return log_error_errno(r, "Failed to connect to /run/systemd/journal/io.systemd.journal: %m"); | |
1956 | ||
1957 | (void) varlink_set_description(link, "journal"); | |
1958 | (void) varlink_set_relative_timeout(link, USEC_INFINITY); | |
1959 | ||
1960 | r = varlink_call(link, method, NULL, NULL, &error, NULL); | |
1961 | if (r < 0) | |
1962 | return log_error_errno(r, "Failed to execute varlink call: %m"); | |
1963 | if (error) | |
1964 | return log_error_errno(SYNTHETIC_ERRNO(ENOANO), | |
1965 | "Failed to execute varlink call: %s", error); | |
1966 | ||
1967 | return 0; | |
1968 | } | |
1969 | ||
1970 | static int flush_to_var(void) { | |
1971 | return simple_varlink_call("--flush", "io.systemd.Journal.FlushToVar"); | |
1972 | } | |
1973 | ||
1974 | static int relinquish_var(void) { | |
1975 | return simple_varlink_call("--relinquish-var/--smart-relinquish-var", "io.systemd.Journal.RelinquishVar"); | |
1976 | } | |
1977 | ||
1978 | static int rotate(void) { | |
1979 | return simple_varlink_call("--rotate", "io.systemd.Journal.Rotate"); | |
1980 | } | |
1981 | ||
1982 | static int sync_journal(void) { | |
1983 | return simple_varlink_call("--sync", "io.systemd.Journal.Synchronize"); | |
1984 | } | |
1985 | ||
1986 | static int wait_for_change(sd_journal *j, int poll_fd) { | |
1987 | struct pollfd pollfds[] = { | |
1988 | { .fd = poll_fd, .events = POLLIN }, | |
1989 | { .fd = STDOUT_FILENO }, | |
1990 | }; | |
1991 | ||
1992 | struct timespec ts; | |
1993 | usec_t timeout; | |
1994 | int r; | |
1995 | ||
1996 | assert(j); | |
1997 | assert(poll_fd >= 0); | |
1998 | ||
1999 | /* Much like sd_journal_wait() but also keeps an eye on STDOUT, and exits as soon as we see a POLLHUP on that, | |
2000 | * i.e. when it is closed. */ | |
2001 | ||
2002 | r = sd_journal_get_timeout(j, &timeout); | |
2003 | if (r < 0) | |
2004 | return log_error_errno(r, "Failed to determine journal waiting time: %m"); | |
2005 | ||
2006 | if (ppoll(pollfds, ELEMENTSOF(pollfds), | |
2007 | timeout == USEC_INFINITY ? NULL : timespec_store(&ts, timeout), NULL) < 0) { | |
2008 | if (errno == EINTR) | |
2009 | return 0; | |
2010 | ||
2011 | return log_error_errno(errno, "Couldn't wait for journal event: %m"); | |
2012 | } | |
2013 | ||
2014 | if (pollfds[1].revents & (POLLHUP|POLLERR)) /* STDOUT has been closed? */ | |
2015 | return log_debug_errno(SYNTHETIC_ERRNO(ECANCELED), | |
2016 | "Standard output has been closed."); | |
2017 | ||
2018 | r = sd_journal_process(j); | |
2019 | if (r < 0) | |
2020 | return log_error_errno(r, "Failed to process journal events: %m"); | |
2021 | ||
2022 | return 0; | |
2023 | } | |
2024 | ||
2025 | int main(int argc, char *argv[]) { | |
2026 | bool previous_boot_id_valid = false, first_line = true, ellipsized = false, need_seek = false; | |
2027 | bool use_cursor = false, after_cursor = false; | |
2028 | _cleanup_(sd_journal_closep) sd_journal *j = NULL; | |
2029 | sd_id128_t previous_boot_id; | |
2030 | int n_shown = 0, r, poll_fd = -1; | |
2031 | ||
2032 | setlocale(LC_ALL, ""); | |
2033 | log_show_color(true); | |
2034 | log_parse_environment(); | |
2035 | log_open(); | |
2036 | ||
2037 | /* Increase max number of open files if we can, we might needs this when browsing journal files, which might be | |
2038 | * split up into many files. */ | |
2039 | (void) rlimit_nofile_bump(HIGH_RLIMIT_NOFILE); | |
2040 | ||
2041 | r = parse_argv(argc, argv); | |
2042 | if (r <= 0) | |
2043 | goto finish; | |
2044 | ||
2045 | signal(SIGWINCH, columns_lines_cache_reset); | |
2046 | sigbus_install(); | |
2047 | ||
2048 | switch (arg_action) { | |
2049 | ||
2050 | case ACTION_NEW_ID128: | |
2051 | r = id128_print_new(ID128_PRINT_PRETTY); | |
2052 | goto finish; | |
2053 | ||
2054 | case ACTION_SETUP_KEYS: | |
2055 | r = setup_keys(); | |
2056 | goto finish; | |
2057 | ||
2058 | case ACTION_LIST_CATALOG: | |
2059 | case ACTION_DUMP_CATALOG: | |
2060 | case ACTION_UPDATE_CATALOG: { | |
2061 | _cleanup_free_ char *database; | |
2062 | ||
2063 | database = path_join(arg_root, CATALOG_DATABASE); | |
2064 | if (!database) { | |
2065 | r = log_oom(); | |
2066 | goto finish; | |
2067 | } | |
2068 | ||
2069 | if (arg_action == ACTION_UPDATE_CATALOG) { | |
2070 | r = catalog_update(database, arg_root, catalog_file_dirs); | |
2071 | if (r < 0) | |
2072 | log_error_errno(r, "Failed to list catalog: %m"); | |
2073 | } else { | |
2074 | bool oneline = arg_action == ACTION_LIST_CATALOG; | |
2075 | ||
2076 | (void) pager_open(arg_pager_flags); | |
2077 | ||
2078 | if (optind < argc) | |
2079 | r = catalog_list_items(stdout, database, oneline, argv + optind); | |
2080 | else | |
2081 | r = catalog_list(stdout, database, oneline); | |
2082 | if (r < 0) | |
2083 | log_error_errno(r, "Failed to list catalog: %m"); | |
2084 | } | |
2085 | ||
2086 | goto finish; | |
2087 | } | |
2088 | ||
2089 | case ACTION_FLUSH: | |
2090 | r = flush_to_var(); | |
2091 | goto finish; | |
2092 | ||
2093 | case ACTION_RELINQUISH_VAR: | |
2094 | r = relinquish_var(); | |
2095 | goto finish; | |
2096 | ||
2097 | case ACTION_SYNC: | |
2098 | r = sync_journal(); | |
2099 | goto finish; | |
2100 | ||
2101 | case ACTION_ROTATE: | |
2102 | r = rotate(); | |
2103 | goto finish; | |
2104 | ||
2105 | case ACTION_SHOW: | |
2106 | case ACTION_PRINT_HEADER: | |
2107 | case ACTION_VERIFY: | |
2108 | case ACTION_DISK_USAGE: | |
2109 | case ACTION_LIST_BOOTS: | |
2110 | case ACTION_VACUUM: | |
2111 | case ACTION_ROTATE_AND_VACUUM: | |
2112 | case ACTION_LIST_FIELDS: | |
2113 | case ACTION_LIST_FIELD_NAMES: | |
2114 | /* These ones require access to the journal files, continue below. */ | |
2115 | break; | |
2116 | ||
2117 | default: | |
2118 | assert_not_reached("Unknown action"); | |
2119 | } | |
2120 | ||
2121 | if (arg_directory) | |
2122 | r = sd_journal_open_directory(&j, arg_directory, arg_journal_type); | |
2123 | else if (arg_root) | |
2124 | r = sd_journal_open_directory(&j, arg_root, arg_journal_type | SD_JOURNAL_OS_ROOT); | |
2125 | else if (arg_file_stdin) { | |
2126 | int ifd = STDIN_FILENO; | |
2127 | r = sd_journal_open_files_fd(&j, &ifd, 1, 0); | |
2128 | } else if (arg_file) | |
2129 | r = sd_journal_open_files(&j, (const char**) arg_file, 0); | |
2130 | else if (arg_machine) { | |
2131 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; | |
2132 | _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; | |
2133 | _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; | |
2134 | int fd; | |
2135 | ||
2136 | if (geteuid() != 0) { | |
2137 | /* The file descriptor returned by OpenMachineRootDirectory() will be owned by users/groups of | |
2138 | * the container, thus we need root privileges to override them. */ | |
2139 | log_error("Using the --machine= switch requires root privileges."); | |
2140 | r = -EPERM; | |
2141 | goto finish; | |
2142 | } | |
2143 | ||
2144 | r = sd_bus_open_system(&bus); | |
2145 | if (r < 0) { | |
2146 | log_error_errno(r, "Failed to open system bus: %m"); | |
2147 | goto finish; | |
2148 | } | |
2149 | ||
2150 | r = sd_bus_call_method( | |
2151 | bus, | |
2152 | "org.freedesktop.machine1", | |
2153 | "/org/freedesktop/machine1", | |
2154 | "org.freedesktop.machine1.Manager", | |
2155 | "OpenMachineRootDirectory", | |
2156 | &error, | |
2157 | &reply, | |
2158 | "s", arg_machine); | |
2159 | if (r < 0) { | |
2160 | log_error_errno(r, "Failed to open root directory: %s", bus_error_message(&error, r)); | |
2161 | goto finish; | |
2162 | } | |
2163 | ||
2164 | r = sd_bus_message_read(reply, "h", &fd); | |
2165 | if (r < 0) { | |
2166 | bus_log_parse_error(r); | |
2167 | goto finish; | |
2168 | } | |
2169 | ||
2170 | fd = fcntl(fd, F_DUPFD_CLOEXEC, 3); | |
2171 | if (fd < 0) { | |
2172 | r = log_error_errno(errno, "Failed to duplicate file descriptor: %m"); | |
2173 | goto finish; | |
2174 | } | |
2175 | ||
2176 | r = sd_journal_open_directory_fd(&j, fd, SD_JOURNAL_OS_ROOT); | |
2177 | if (r < 0) | |
2178 | safe_close(fd); | |
2179 | } else | |
2180 | r = sd_journal_open(&j, !arg_merge*SD_JOURNAL_LOCAL_ONLY + arg_journal_type); | |
2181 | if (r < 0) { | |
2182 | log_error_errno(r, "Failed to open %s: %m", arg_directory ?: arg_file ? "files" : "journal"); | |
2183 | goto finish; | |
2184 | } | |
2185 | ||
2186 | r = journal_access_check_and_warn(j, arg_quiet, | |
2187 | !(arg_journal_type == SD_JOURNAL_CURRENT_USER || arg_user_units)); | |
2188 | if (r < 0) | |
2189 | goto finish; | |
2190 | ||
2191 | switch (arg_action) { | |
2192 | ||
2193 | case ACTION_NEW_ID128: | |
2194 | case ACTION_SETUP_KEYS: | |
2195 | case ACTION_LIST_CATALOG: | |
2196 | case ACTION_DUMP_CATALOG: | |
2197 | case ACTION_UPDATE_CATALOG: | |
2198 | case ACTION_FLUSH: | |
2199 | case ACTION_SYNC: | |
2200 | case ACTION_ROTATE: | |
2201 | assert_not_reached("Unexpected action."); | |
2202 | ||
2203 | case ACTION_PRINT_HEADER: | |
2204 | journal_print_header(j); | |
2205 | r = 0; | |
2206 | goto finish; | |
2207 | ||
2208 | case ACTION_VERIFY: | |
2209 | r = verify(j); | |
2210 | goto finish; | |
2211 | ||
2212 | case ACTION_DISK_USAGE: { | |
2213 | uint64_t bytes = 0; | |
2214 | char sbytes[FORMAT_BYTES_MAX]; | |
2215 | ||
2216 | r = sd_journal_get_usage(j, &bytes); | |
2217 | if (r < 0) | |
2218 | goto finish; | |
2219 | ||
2220 | printf("Archived and active journals take up %s in the file system.\n", | |
2221 | format_bytes(sbytes, sizeof(sbytes), bytes)); | |
2222 | goto finish; | |
2223 | } | |
2224 | ||
2225 | case ACTION_LIST_BOOTS: | |
2226 | r = list_boots(j); | |
2227 | goto finish; | |
2228 | ||
2229 | case ACTION_ROTATE_AND_VACUUM: | |
2230 | ||
2231 | r = rotate(); | |
2232 | if (r < 0) | |
2233 | goto finish; | |
2234 | ||
2235 | _fallthrough_; | |
2236 | ||
2237 | case ACTION_VACUUM: { | |
2238 | Directory *d; | |
2239 | Iterator i; | |
2240 | ||
2241 | HASHMAP_FOREACH(d, j->directories_by_path, i) { | |
2242 | int q; | |
2243 | ||
2244 | q = journal_directory_vacuum(d->path, arg_vacuum_size, arg_vacuum_n_files, arg_vacuum_time, NULL, !arg_quiet); | |
2245 | if (q < 0) { | |
2246 | log_error_errno(q, "Failed to vacuum %s: %m", d->path); | |
2247 | r = q; | |
2248 | } | |
2249 | } | |
2250 | ||
2251 | goto finish; | |
2252 | } | |
2253 | ||
2254 | case ACTION_LIST_FIELD_NAMES: { | |
2255 | const char *field; | |
2256 | ||
2257 | SD_JOURNAL_FOREACH_FIELD(j, field) { | |
2258 | printf("%s\n", field); | |
2259 | n_shown++; | |
2260 | } | |
2261 | ||
2262 | r = 0; | |
2263 | goto finish; | |
2264 | } | |
2265 | ||
2266 | case ACTION_SHOW: | |
2267 | case ACTION_LIST_FIELDS: | |
2268 | break; | |
2269 | ||
2270 | default: | |
2271 | assert_not_reached("Unknown action"); | |
2272 | } | |
2273 | ||
2274 | if (arg_boot_offset != 0 && | |
2275 | sd_journal_has_runtime_files(j) > 0 && | |
2276 | sd_journal_has_persistent_files(j) == 0) { | |
2277 | log_info("Specifying boot ID or boot offset has no effect, no persistent journal was found."); | |
2278 | r = 0; | |
2279 | goto finish; | |
2280 | } | |
2281 | /* add_boot() must be called first! | |
2282 | * It may need to seek the journal to find parent boot IDs. */ | |
2283 | r = add_boot(j); | |
2284 | if (r < 0) | |
2285 | goto finish; | |
2286 | ||
2287 | r = add_dmesg(j); | |
2288 | if (r < 0) | |
2289 | goto finish; | |
2290 | ||
2291 | r = add_units(j); | |
2292 | if (r < 0) { | |
2293 | log_error_errno(r, "Failed to add filter for units: %m"); | |
2294 | goto finish; | |
2295 | } | |
2296 | ||
2297 | r = add_syslog_identifier(j); | |
2298 | if (r < 0) { | |
2299 | log_error_errno(r, "Failed to add filter for syslog identifiers: %m"); | |
2300 | goto finish; | |
2301 | } | |
2302 | ||
2303 | r = add_priorities(j); | |
2304 | if (r < 0) | |
2305 | goto finish; | |
2306 | ||
2307 | r = add_matches(j, argv + optind); | |
2308 | if (r < 0) | |
2309 | goto finish; | |
2310 | ||
2311 | if (DEBUG_LOGGING) { | |
2312 | _cleanup_free_ char *filter; | |
2313 | ||
2314 | filter = journal_make_match_string(j); | |
2315 | if (!filter) | |
2316 | return log_oom(); | |
2317 | ||
2318 | log_debug("Journal filter: %s", filter); | |
2319 | } | |
2320 | ||
2321 | if (arg_action == ACTION_LIST_FIELDS) { | |
2322 | const void *data; | |
2323 | size_t size; | |
2324 | ||
2325 | assert(arg_field); | |
2326 | ||
2327 | r = sd_journal_set_data_threshold(j, 0); | |
2328 | if (r < 0) { | |
2329 | log_error_errno(r, "Failed to unset data size threshold: %m"); | |
2330 | goto finish; | |
2331 | } | |
2332 | ||
2333 | r = sd_journal_query_unique(j, arg_field); | |
2334 | if (r < 0) { | |
2335 | log_error_errno(r, "Failed to query unique data objects: %m"); | |
2336 | goto finish; | |
2337 | } | |
2338 | ||
2339 | SD_JOURNAL_FOREACH_UNIQUE(j, data, size) { | |
2340 | const void *eq; | |
2341 | ||
2342 | if (arg_lines >= 0 && n_shown >= arg_lines) | |
2343 | break; | |
2344 | ||
2345 | eq = memchr(data, '=', size); | |
2346 | if (eq) | |
2347 | printf("%.*s\n", (int) (size - ((const uint8_t*) eq - (const uint8_t*) data + 1)), (const char*) eq + 1); | |
2348 | else | |
2349 | printf("%.*s\n", (int) size, (const char*) data); | |
2350 | ||
2351 | n_shown++; | |
2352 | } | |
2353 | ||
2354 | r = 0; | |
2355 | goto finish; | |
2356 | } | |
2357 | ||
2358 | /* Opening the fd now means the first sd_journal_wait() will actually wait */ | |
2359 | if (arg_follow) { | |
2360 | poll_fd = sd_journal_get_fd(j); | |
2361 | if (poll_fd == -EMFILE) { | |
2362 | log_warning_errno(poll_fd, "Insufficient watch descriptors available. Reverting to -n."); | |
2363 | arg_follow = false; | |
2364 | } else if (poll_fd == -EMEDIUMTYPE) { | |
2365 | log_error_errno(poll_fd, "The --follow switch is not supported in conjunction with reading from STDIN."); | |
2366 | goto finish; | |
2367 | } else if (poll_fd < 0) { | |
2368 | log_error_errno(poll_fd, "Failed to get journal fd: %m"); | |
2369 | goto finish; | |
2370 | } | |
2371 | } | |
2372 | ||
2373 | if (arg_cursor || arg_after_cursor || arg_cursor_file) { | |
2374 | _cleanup_free_ char *cursor_from_file = NULL; | |
2375 | const char *cursor = arg_cursor ?: arg_after_cursor; | |
2376 | ||
2377 | if (arg_cursor_file) { | |
2378 | r = read_one_line_file(arg_cursor_file, &cursor_from_file); | |
2379 | if (r < 0 && r != -ENOENT) { | |
2380 | log_error_errno(r, "Failed to read cursor file %s: %m", arg_cursor_file); | |
2381 | goto finish; | |
2382 | } | |
2383 | ||
2384 | if (r > 0) { | |
2385 | cursor = cursor_from_file; | |
2386 | after_cursor = true; | |
2387 | } | |
2388 | } else | |
2389 | after_cursor = !!arg_after_cursor; | |
2390 | ||
2391 | if (cursor) { | |
2392 | r = sd_journal_seek_cursor(j, cursor); | |
2393 | if (r < 0) { | |
2394 | log_error_errno(r, "Failed to seek to cursor: %m"); | |
2395 | goto finish; | |
2396 | } | |
2397 | use_cursor = true; | |
2398 | } | |
2399 | } | |
2400 | ||
2401 | if (use_cursor) { | |
2402 | if (!arg_reverse) | |
2403 | r = sd_journal_next_skip(j, 1 + after_cursor); | |
2404 | else | |
2405 | r = sd_journal_previous_skip(j, 1 + after_cursor); | |
2406 | ||
2407 | if (after_cursor && r < 2) { | |
2408 | /* We couldn't find the next entry after the cursor. */ | |
2409 | if (arg_follow) | |
2410 | need_seek = true; | |
2411 | else | |
2412 | arg_lines = 0; | |
2413 | } | |
2414 | ||
2415 | } else if (arg_since_set && !arg_reverse) { | |
2416 | r = sd_journal_seek_realtime_usec(j, arg_since); | |
2417 | if (r < 0) { | |
2418 | log_error_errno(r, "Failed to seek to date: %m"); | |
2419 | goto finish; | |
2420 | } | |
2421 | r = sd_journal_next(j); | |
2422 | ||
2423 | } else if (arg_until_set && arg_reverse) { | |
2424 | r = sd_journal_seek_realtime_usec(j, arg_until); | |
2425 | if (r < 0) { | |
2426 | log_error_errno(r, "Failed to seek to date: %m"); | |
2427 | goto finish; | |
2428 | } | |
2429 | r = sd_journal_previous(j); | |
2430 | ||
2431 | } else if (arg_lines >= 0) { | |
2432 | r = sd_journal_seek_tail(j); | |
2433 | if (r < 0) { | |
2434 | log_error_errno(r, "Failed to seek to tail: %m"); | |
2435 | goto finish; | |
2436 | } | |
2437 | ||
2438 | r = sd_journal_previous_skip(j, arg_lines); | |
2439 | ||
2440 | } else if (arg_reverse) { | |
2441 | r = sd_journal_seek_tail(j); | |
2442 | if (r < 0) { | |
2443 | log_error_errno(r, "Failed to seek to tail: %m"); | |
2444 | goto finish; | |
2445 | } | |
2446 | ||
2447 | r = sd_journal_previous(j); | |
2448 | ||
2449 | } else { | |
2450 | r = sd_journal_seek_head(j); | |
2451 | if (r < 0) { | |
2452 | log_error_errno(r, "Failed to seek to head: %m"); | |
2453 | goto finish; | |
2454 | } | |
2455 | ||
2456 | r = sd_journal_next(j); | |
2457 | } | |
2458 | ||
2459 | if (r < 0) { | |
2460 | log_error_errno(r, "Failed to iterate through journal: %m"); | |
2461 | goto finish; | |
2462 | } | |
2463 | if (r == 0) | |
2464 | need_seek = true; | |
2465 | ||
2466 | if (!arg_follow) | |
2467 | (void) pager_open(arg_pager_flags); | |
2468 | ||
2469 | if (!arg_quiet && (arg_lines != 0 || arg_follow)) { | |
2470 | usec_t start, end; | |
2471 | char start_buf[FORMAT_TIMESTAMP_MAX], end_buf[FORMAT_TIMESTAMP_MAX]; | |
2472 | ||
2473 | r = sd_journal_get_cutoff_realtime_usec(j, &start, &end); | |
2474 | if (r < 0) { | |
2475 | log_error_errno(r, "Failed to get cutoff: %m"); | |
2476 | goto finish; | |
2477 | } | |
2478 | ||
2479 | if (r > 0) { | |
2480 | if (arg_follow) | |
2481 | printf("-- Logs begin at %s. --\n", | |
2482 | format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start)); | |
2483 | else | |
2484 | printf("-- Logs begin at %s, end at %s. --\n", | |
2485 | format_timestamp_maybe_utc(start_buf, sizeof(start_buf), start), | |
2486 | format_timestamp_maybe_utc(end_buf, sizeof(end_buf), end)); | |
2487 | } | |
2488 | } | |
2489 | ||
2490 | for (;;) { | |
2491 | while (arg_lines < 0 || n_shown < arg_lines || (arg_follow && !first_line)) { | |
2492 | int flags; | |
2493 | size_t highlight[2] = {}; | |
2494 | ||
2495 | if (need_seek) { | |
2496 | if (!arg_reverse) | |
2497 | r = sd_journal_next(j); | |
2498 | else | |
2499 | r = sd_journal_previous(j); | |
2500 | if (r < 0) { | |
2501 | log_error_errno(r, "Failed to iterate through journal: %m"); | |
2502 | goto finish; | |
2503 | } | |
2504 | if (r == 0) | |
2505 | break; | |
2506 | } | |
2507 | ||
2508 | if (arg_until_set && !arg_reverse) { | |
2509 | usec_t usec; | |
2510 | ||
2511 | r = sd_journal_get_realtime_usec(j, &usec); | |
2512 | if (r < 0) { | |
2513 | log_error_errno(r, "Failed to determine timestamp: %m"); | |
2514 | goto finish; | |
2515 | } | |
2516 | if (usec > arg_until) | |
2517 | break; | |
2518 | } | |
2519 | ||
2520 | if (arg_since_set && arg_reverse) { | |
2521 | usec_t usec; | |
2522 | ||
2523 | r = sd_journal_get_realtime_usec(j, &usec); | |
2524 | if (r < 0) { | |
2525 | log_error_errno(r, "Failed to determine timestamp: %m"); | |
2526 | goto finish; | |
2527 | } | |
2528 | if (usec < arg_since) | |
2529 | break; | |
2530 | } | |
2531 | ||
2532 | if (!arg_merge && !arg_quiet) { | |
2533 | sd_id128_t boot_id; | |
2534 | ||
2535 | r = sd_journal_get_monotonic_usec(j, NULL, &boot_id); | |
2536 | if (r >= 0) { | |
2537 | if (previous_boot_id_valid && | |
2538 | !sd_id128_equal(boot_id, previous_boot_id)) | |
2539 | printf("%s-- Reboot --%s\n", | |
2540 | ansi_highlight(), ansi_normal()); | |
2541 | ||
2542 | previous_boot_id = boot_id; | |
2543 | previous_boot_id_valid = true; | |
2544 | } | |
2545 | } | |
2546 | ||
2547 | #if HAVE_PCRE2 | |
2548 | if (arg_compiled_pattern) { | |
2549 | _cleanup_(pcre2_match_data_freep) pcre2_match_data *md = NULL; | |
2550 | const void *message; | |
2551 | size_t len; | |
2552 | PCRE2_SIZE *ovec; | |
2553 | ||
2554 | md = pcre2_match_data_create(1, NULL); | |
2555 | if (!md) | |
2556 | return log_oom(); | |
2557 | ||
2558 | r = sd_journal_get_data(j, "MESSAGE", &message, &len); | |
2559 | if (r < 0) { | |
2560 | if (r == -ENOENT) { | |
2561 | need_seek = true; | |
2562 | continue; | |
2563 | } | |
2564 | ||
2565 | log_error_errno(r, "Failed to get MESSAGE field: %m"); | |
2566 | goto finish; | |
2567 | } | |
2568 | ||
2569 | assert_se(message = startswith(message, "MESSAGE=")); | |
2570 | ||
2571 | r = pcre2_match(arg_compiled_pattern, | |
2572 | message, | |
2573 | len - strlen("MESSAGE="), | |
2574 | 0, /* start at offset 0 in the subject */ | |
2575 | 0, /* default options */ | |
2576 | md, | |
2577 | NULL); | |
2578 | if (r == PCRE2_ERROR_NOMATCH) { | |
2579 | need_seek = true; | |
2580 | continue; | |
2581 | } | |
2582 | if (r < 0) { | |
2583 | unsigned char buf[LINE_MAX]; | |
2584 | int r2; | |
2585 | ||
2586 | r2 = pcre2_get_error_message(r, buf, sizeof buf); | |
2587 | log_error("Pattern matching failed: %s", | |
2588 | r2 < 0 ? "unknown error" : (char*) buf); | |
2589 | r = -EINVAL; | |
2590 | goto finish; | |
2591 | } | |
2592 | ||
2593 | ovec = pcre2_get_ovector_pointer(md); | |
2594 | highlight[0] = ovec[0]; | |
2595 | highlight[1] = ovec[1]; | |
2596 | } | |
2597 | #endif | |
2598 | ||
2599 | flags = | |
2600 | arg_all * OUTPUT_SHOW_ALL | | |
2601 | arg_full * OUTPUT_FULL_WIDTH | | |
2602 | colors_enabled() * OUTPUT_COLOR | | |
2603 | arg_catalog * OUTPUT_CATALOG | | |
2604 | arg_utc * OUTPUT_UTC | | |
2605 | arg_no_hostname * OUTPUT_NO_HOSTNAME; | |
2606 | ||
2607 | r = show_journal_entry(stdout, j, arg_output, 0, flags, | |
2608 | arg_output_fields, highlight, &ellipsized); | |
2609 | need_seek = true; | |
2610 | if (r == -EADDRNOTAVAIL) | |
2611 | break; | |
2612 | else if (r < 0) | |
2613 | goto finish; | |
2614 | ||
2615 | n_shown++; | |
2616 | ||
2617 | /* If journalctl take a long time to process messages, and during that time journal file | |
2618 | * rotation occurs, a journalctl client will keep those rotated files open until it calls | |
2619 | * sd_journal_process(), which typically happens as a result of calling sd_journal_wait() below | |
2620 | * in the "following" case. By periodically calling sd_journal_process() during the processing | |
2621 | * loop we shrink the window of time a client instance has open file descriptors for rotated | |
2622 | * (deleted) journal files. */ | |
2623 | if ((n_shown % PROCESS_INOTIFY_INTERVAL) == 0) { | |
2624 | r = sd_journal_process(j); | |
2625 | if (r < 0) { | |
2626 | log_error_errno(r, "Failed to process inotify events: %m"); | |
2627 | goto finish; | |
2628 | } | |
2629 | } | |
2630 | } | |
2631 | ||
2632 | if (!arg_follow) { | |
2633 | if (n_shown == 0 && !arg_quiet) | |
2634 | printf("-- No entries --\n"); | |
2635 | break; | |
2636 | } | |
2637 | ||
2638 | fflush(stdout); | |
2639 | ||
2640 | r = wait_for_change(j, poll_fd); | |
2641 | if (r < 0) | |
2642 | goto finish; | |
2643 | ||
2644 | first_line = false; | |
2645 | } | |
2646 | ||
2647 | if (arg_show_cursor || arg_cursor_file) { | |
2648 | _cleanup_free_ char *cursor = NULL; | |
2649 | ||
2650 | r = sd_journal_get_cursor(j, &cursor); | |
2651 | if (r < 0 && r != -EADDRNOTAVAIL) | |
2652 | log_error_errno(r, "Failed to get cursor: %m"); | |
2653 | else if (r >= 0) { | |
2654 | if (arg_show_cursor) | |
2655 | printf("-- cursor: %s\n", cursor); | |
2656 | ||
2657 | if (arg_cursor_file) { | |
2658 | r = write_string_file(arg_cursor_file, cursor, | |
2659 | WRITE_STRING_FILE_CREATE | | |
2660 | WRITE_STRING_FILE_ATOMIC); | |
2661 | if (r < 0) | |
2662 | log_error_errno(r, | |
2663 | "Failed to write new cursor to %s: %m", | |
2664 | arg_cursor_file); | |
2665 | } | |
2666 | } | |
2667 | } | |
2668 | ||
2669 | finish: | |
2670 | pager_close(); | |
2671 | ||
2672 | strv_free(arg_file); | |
2673 | ||
2674 | strv_free(arg_syslog_identifier); | |
2675 | strv_free(arg_system_units); | |
2676 | strv_free(arg_user_units); | |
2677 | strv_free(arg_output_fields); | |
2678 | ||
2679 | free(arg_root); | |
2680 | free(arg_verify_key); | |
2681 | ||
2682 | #if HAVE_PCRE2 | |
2683 | if (arg_compiled_pattern) { | |
2684 | pcre2_code_free(arg_compiled_pattern); | |
2685 | ||
2686 | /* --grep was used, no error was thrown, but the pattern didn't | |
2687 | * match anything. Let's mimic grep's behavior here and return | |
2688 | * a non-zero exit code, so journalctl --grep can be used | |
2689 | * in scripts and such */ | |
2690 | if (r == 0 && n_shown == 0) | |
2691 | r = -ENOENT; | |
2692 | } | |
2693 | #endif | |
2694 | ||
2695 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
2696 | } |