1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
12 #include <sys/inotify.h>
17 # define PCRE2_CODE_UNIT_WIDTH 8
22 #include "sd-device.h"
23 #include "sd-journal.h"
26 #include "alloc-util.h"
27 #include "bus-error.h"
30 #include "chattr-util.h"
32 #include "dissect-image.h"
35 #include "format-util.h"
38 #include "glob-util.h"
39 #include "hostname-util.h"
40 #include "id128-print.h"
42 #include "journal-def.h"
43 #include "journal-internal.h"
44 #include "journal-util.h"
45 #include "journal-vacuum.h"
46 #include "journal-verify.h"
47 #include "locale-util.h"
49 #include "logs-show.h"
50 #include "memory-util.h"
52 #include "mount-util.h"
53 #include "mountpoint-util.h"
54 #include "nulstr-util.h"
56 #include "parse-argument.h"
57 #include "parse-util.h"
58 #include "path-util.h"
59 #include "pcre2-dlopen.h"
60 #include "pretty-print.h"
61 #include "qrcode-util.h"
62 #include "random-util.h"
63 #include "rlimit-util.h"
66 #include "stdio-util.h"
67 #include "string-table.h"
69 #include "syslog-util.h"
70 #include "terminal-util.h"
71 #include "tmpfile-util.h"
72 #include "unit-name.h"
73 #include "user-util.h"
76 #define DEFAULT_FSS_INTERVAL_USEC (15*USEC_PER_MINUTE)
77 #define PROCESS_INOTIFY_INTERVAL 1024 /* Every 1,024 messages processed */
80 /* Special values for arg_lines */
81 ARG_LINES_DEFAULT
= -2,
85 static OutputMode arg_output
= OUTPUT_SHORT
;
86 static bool arg_utc
= false;
87 static bool arg_follow
= false;
88 static bool arg_full
= true;
89 static bool arg_all
= false;
90 static PagerFlags arg_pager_flags
= 0;
91 static int arg_lines
= ARG_LINES_DEFAULT
;
92 static bool arg_no_tail
= false;
93 static bool arg_quiet
= false;
94 static bool arg_merge
= false;
95 static bool arg_boot
= false;
96 static sd_id128_t arg_boot_id
= {};
97 static int arg_boot_offset
= 0;
98 static bool arg_dmesg
= false;
99 static bool arg_no_hostname
= false;
100 static const char *arg_cursor
= NULL
;
101 static const char *arg_cursor_file
= NULL
;
102 static const char *arg_after_cursor
= NULL
;
103 static bool arg_show_cursor
= false;
104 static const char *arg_directory
= NULL
;
105 static char **arg_file
= NULL
;
106 static bool arg_file_stdin
= false;
107 static int arg_priorities
= 0xFF;
108 static Set
*arg_facilities
= NULL
;
109 static char *arg_verify_key
= NULL
;
111 static usec_t arg_interval
= DEFAULT_FSS_INTERVAL_USEC
;
112 static bool arg_force
= false;
114 static usec_t arg_since
, arg_until
;
115 static bool arg_since_set
= false, arg_until_set
= false;
116 static char **arg_syslog_identifier
= NULL
;
117 static char **arg_system_units
= NULL
;
118 static char **arg_user_units
= NULL
;
119 static const char *arg_field
= NULL
;
120 static bool arg_catalog
= false;
121 static bool arg_reverse
= false;
122 static int arg_journal_type
= 0;
123 static int arg_namespace_flags
= 0;
124 static char *arg_root
= NULL
;
125 static char *arg_image
= NULL
;
126 static const char *arg_machine
= NULL
;
127 static const char *arg_namespace
= NULL
;
128 static uint64_t arg_vacuum_size
= 0;
129 static uint64_t arg_vacuum_n_files
= 0;
130 static usec_t arg_vacuum_time
= 0;
131 static char **arg_output_fields
= NULL
;
133 static const char *arg_pattern
= NULL
;
134 static pcre2_code
*arg_compiled_pattern
= NULL
;
135 static int arg_case_sensitive
= -1; /* -1 means be smart */
147 ACTION_UPDATE_CATALOG
,
150 ACTION_RELINQUISH_VAR
,
154 ACTION_ROTATE_AND_VACUUM
,
156 ACTION_LIST_FIELD_NAMES
,
157 } arg_action
= ACTION_SHOW
;
159 typedef struct BootId
{
163 LIST_FIELDS(struct BootId
, boot_list
);
167 DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(pcre2_match_data
*, sym_pcre2_match_data_free
, NULL
);
168 DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(pcre2_code
*, sym_pcre2_code_free
, NULL
);
170 static int pattern_compile(const char *pattern
, unsigned flags
, pcre2_code
**out
) {
172 PCRE2_SIZE erroroffset
;
175 p
= sym_pcre2_compile((PCRE2_SPTR8
) pattern
,
176 PCRE2_ZERO_TERMINATED
, flags
, &errorcode
, &erroroffset
, NULL
);
178 unsigned char buf
[LINE_MAX
];
180 r
= sym_pcre2_get_error_message(errorcode
, buf
, sizeof buf
);
182 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
183 "Bad pattern \"%s\": %s", pattern
,
184 r
< 0 ? "unknown error" : (char *)buf
);
192 static int add_matches_for_device(sd_journal
*j
, const char *devpath
) {
193 _cleanup_(sd_device_unrefp
) sd_device
*device
= NULL
;
201 if (!path_startswith(devpath
, "/dev/"))
202 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
203 "Devpath does not start with /dev/");
205 if (stat(devpath
, &st
) < 0)
206 return log_error_errno(errno
, "Couldn't stat file: %m");
208 r
= sd_device_new_from_stat_rdev(&device
, &st
);
210 return log_error_errno(r
, "Failed to get device from devnum %u:%u: %m", major(st
.st_rdev
), minor(st
.st_rdev
));
212 for (d
= device
; d
; ) {
213 _cleanup_free_
char *match
= NULL
;
214 const char *subsys
, *sysname
, *devnode
;
217 r
= sd_device_get_subsystem(d
, &subsys
);
221 r
= sd_device_get_sysname(d
, &sysname
);
225 match
= strjoin("_KERNEL_DEVICE=+", subsys
, ":", sysname
);
229 r
= sd_journal_add_match(j
, match
, 0);
231 return log_error_errno(r
, "Failed to add match: %m");
233 if (sd_device_get_devname(d
, &devnode
) >= 0) {
234 _cleanup_free_
char *match1
= NULL
;
236 r
= stat(devnode
, &st
);
238 return log_error_errno(r
, "Failed to stat() device node \"%s\": %m", devnode
);
240 r
= asprintf(&match1
, "_KERNEL_DEVICE=%c%u:%u", S_ISBLK(st
.st_mode
) ? 'b' : 'c', major(st
.st_rdev
), minor(st
.st_rdev
));
244 r
= sd_journal_add_match(j
, match1
, 0);
246 return log_error_errno(r
, "Failed to add match: %m");
250 if (sd_device_get_parent(d
, &parent
) < 0)
256 r
= add_match_this_boot(j
, arg_machine
);
258 return log_error_errno(r
, "Failed to add match for the current boot: %m");
263 static char *format_timestamp_maybe_utc(char *buf
, size_t l
, usec_t t
) {
266 return format_timestamp_style(buf
, l
, t
, TIMESTAMP_UTC
);
268 return format_timestamp(buf
, l
, t
);
271 static int parse_boot_descriptor(const char *x
, sd_id128_t
*boot_id
, int *offset
) {
272 sd_id128_t id
= SD_ID128_NULL
;
275 if (streq(x
, "all")) {
276 *boot_id
= SD_ID128_NULL
;
279 } else if (strlen(x
) >= 32) {
283 r
= sd_id128_from_string(t
, &id
);
287 if (!IN_SET(*x
, 0, '-', '+'))
291 r
= safe_atoi(x
, &off
);
296 r
= safe_atoi(x
, &off
);
310 static int help_facilities(void) {
312 puts("Available facilities:");
314 for (int i
= 0; i
< LOG_NFACILITIES
; i
++) {
315 _cleanup_free_
char *t
= NULL
;
317 if (log_facility_unshifted_to_string_alloc(i
, &t
))
325 static int help(void) {
326 _cleanup_free_
char *link
= NULL
;
329 (void) pager_open(arg_pager_flags
);
331 r
= terminal_urlify_man("journalctl", "1", &link
);
335 printf("%1$s [OPTIONS...] [MATCHES...]\n\n"
336 "%5$sQuery the journal.%6$s\n\n"
338 " --system Show the system journal\n"
339 " --user Show the user journal for the current user\n"
340 " -M --machine=CONTAINER Operate on local container\n"
341 " -S --since=DATE Show entries not older than the specified date\n"
342 " -U --until=DATE Show entries not newer than the specified date\n"
343 " -c --cursor=CURSOR Show entries starting at the specified cursor\n"
344 " --after-cursor=CURSOR Show entries after the specified cursor\n"
345 " --show-cursor Print the cursor after all the entries\n"
346 " --cursor-file=FILE Show entries after cursor in FILE and update FILE\n"
347 " -b --boot[=ID] Show current boot or the specified boot\n"
348 " --list-boots Show terse information about recorded boots\n"
349 " -k --dmesg Show kernel message log from the current boot\n"
350 " -u --unit=UNIT Show logs from the specified unit\n"
351 " --user-unit=UNIT Show logs from the specified user unit\n"
352 " -t --identifier=STRING Show entries with the specified syslog identifier\n"
353 " -p --priority=RANGE Show entries with the specified priority\n"
354 " --facility=FACILITY... Show entries with the specified facilities\n"
355 " -g --grep=PATTERN Show entries with MESSAGE matching PATTERN\n"
356 " --case-sensitive[=BOOL] Force case sensitive or insensitive matching\n"
357 " -e --pager-end Immediately jump to the end in the pager\n"
358 " -f --follow Follow the journal\n"
359 " -n --lines[=INTEGER] Number of journal entries to show\n"
360 " --no-tail Show all lines, even in follow mode\n"
361 " -r --reverse Show the newest entries first\n"
362 " -o --output=STRING Change journal output mode (short, short-precise,\n"
363 " short-iso, short-iso-precise, short-full,\n"
364 " short-monotonic, short-unix, verbose, export,\n"
365 " json, json-pretty, json-sse, json-seq, cat,\n"
367 " --output-fields=LIST Select fields to print in verbose/export/json modes\n"
368 " --utc Express time in Coordinated Universal Time (UTC)\n"
369 " -x --catalog Add message explanations where available\n"
370 " --no-full Ellipsize fields\n"
371 " -a --all Show all fields, including long and unprintable\n"
372 " -q --quiet Do not show info messages and privilege warning\n"
373 " --no-pager Do not pipe output into a pager\n"
374 " --no-hostname Suppress output of hostname field\n"
375 " -m --merge Show entries from all available journals\n"
376 " -D --directory=PATH Show journal files from directory\n"
377 " --file=PATH Show journal file\n"
378 " --root=ROOT Operate on files below a root directory\n"
379 " --image=IMAGE Operate on files in filesystem image\n"
380 " --namespace=NAMESPACE Show journal data from specified namespace\n"
381 " --interval=TIME Time interval for changing the FSS sealing key\n"
382 " --verify-key=KEY Specify FSS verification key\n"
383 " --force Override of the FSS key pair with --setup-keys\n"
384 "\n%3$sCommands:%4$s\n"
385 " -h --help Show this help text\n"
386 " --version Show package version\n"
387 " -N --fields List all field names currently used\n"
388 " -F --field=FIELD List all values that a specified field takes\n"
389 " --disk-usage Show total disk usage of all journal files\n"
390 " --vacuum-size=BYTES Reduce disk usage below specified size\n"
391 " --vacuum-files=INT Leave only the specified number of journal files\n"
392 " --vacuum-time=TIME Remove journal files older than specified time\n"
393 " --verify Verify journal file consistency\n"
394 " --sync Synchronize unwritten journal messages to disk\n"
395 " --relinquish-var Stop logging to disk, log to temporary file system\n"
396 " --smart-relinquish-var Similar, but NOP if log directory is on root mount\n"
397 " --flush Flush all journal data from /run into /var\n"
398 " --rotate Request immediate rotation of the journal files\n"
399 " --header Show journal header information\n"
400 " --list-catalog Show all message IDs in the catalog\n"
401 " --dump-catalog Show entries in the message catalog\n"
402 " --update-catalog Update the message catalog database\n"
403 " --setup-keys Generate a new FSS key pair\n"
404 "\nSee the %2$s for details.\n",
405 program_invocation_short_name
,
415 static int parse_argv(int argc
, char *argv
[]) {
450 ARG_SMART_RELINQUISH_VAR
,
460 static const struct option options
[] = {
461 { "help", no_argument
, NULL
, 'h' },
462 { "version" , no_argument
, NULL
, ARG_VERSION
},
463 { "no-pager", no_argument
, NULL
, ARG_NO_PAGER
},
464 { "pager-end", no_argument
, NULL
, 'e' },
465 { "follow", no_argument
, NULL
, 'f' },
466 { "force", no_argument
, NULL
, ARG_FORCE
},
467 { "output", required_argument
, NULL
, 'o' },
468 { "all", no_argument
, NULL
, 'a' },
469 { "full", no_argument
, NULL
, 'l' },
470 { "no-full", no_argument
, NULL
, ARG_NO_FULL
},
471 { "lines", optional_argument
, NULL
, 'n' },
472 { "no-tail", no_argument
, NULL
, ARG_NO_TAIL
},
473 { "new-id128", no_argument
, NULL
, ARG_NEW_ID128
}, /* deprecated */
474 { "quiet", no_argument
, NULL
, 'q' },
475 { "merge", no_argument
, NULL
, 'm' },
476 { "this-boot", no_argument
, NULL
, ARG_THIS_BOOT
}, /* deprecated */
477 { "boot", optional_argument
, NULL
, 'b' },
478 { "list-boots", no_argument
, NULL
, ARG_LIST_BOOTS
},
479 { "dmesg", no_argument
, NULL
, 'k' },
480 { "system", no_argument
, NULL
, ARG_SYSTEM
},
481 { "user", no_argument
, NULL
, ARG_USER
},
482 { "directory", required_argument
, NULL
, 'D' },
483 { "file", required_argument
, NULL
, ARG_FILE
},
484 { "root", required_argument
, NULL
, ARG_ROOT
},
485 { "image", required_argument
, NULL
, ARG_IMAGE
},
486 { "header", no_argument
, NULL
, ARG_HEADER
},
487 { "identifier", required_argument
, NULL
, 't' },
488 { "priority", required_argument
, NULL
, 'p' },
489 { "facility", required_argument
, NULL
, ARG_FACILITY
},
490 { "grep", required_argument
, NULL
, 'g' },
491 { "case-sensitive", optional_argument
, NULL
, ARG_CASE_SENSITIVE
},
492 { "setup-keys", no_argument
, NULL
, ARG_SETUP_KEYS
},
493 { "interval", required_argument
, NULL
, ARG_INTERVAL
},
494 { "verify", no_argument
, NULL
, ARG_VERIFY
},
495 { "verify-key", required_argument
, NULL
, ARG_VERIFY_KEY
},
496 { "disk-usage", no_argument
, NULL
, ARG_DISK_USAGE
},
497 { "cursor", required_argument
, NULL
, 'c' },
498 { "cursor-file", required_argument
, NULL
, ARG_CURSOR_FILE
},
499 { "after-cursor", required_argument
, NULL
, ARG_AFTER_CURSOR
},
500 { "show-cursor", no_argument
, NULL
, ARG_SHOW_CURSOR
},
501 { "since", required_argument
, NULL
, 'S' },
502 { "until", required_argument
, NULL
, 'U' },
503 { "unit", required_argument
, NULL
, 'u' },
504 { "user-unit", required_argument
, NULL
, ARG_USER_UNIT
},
505 { "field", required_argument
, NULL
, 'F' },
506 { "fields", no_argument
, NULL
, 'N' },
507 { "catalog", no_argument
, NULL
, 'x' },
508 { "list-catalog", no_argument
, NULL
, ARG_LIST_CATALOG
},
509 { "dump-catalog", no_argument
, NULL
, ARG_DUMP_CATALOG
},
510 { "update-catalog", no_argument
, NULL
, ARG_UPDATE_CATALOG
},
511 { "reverse", no_argument
, NULL
, 'r' },
512 { "machine", required_argument
, NULL
, 'M' },
513 { "utc", no_argument
, NULL
, ARG_UTC
},
514 { "flush", no_argument
, NULL
, ARG_FLUSH
},
515 { "relinquish-var", no_argument
, NULL
, ARG_RELINQUISH_VAR
},
516 { "smart-relinquish-var", no_argument
, NULL
, ARG_SMART_RELINQUISH_VAR
},
517 { "sync", no_argument
, NULL
, ARG_SYNC
},
518 { "rotate", no_argument
, NULL
, ARG_ROTATE
},
519 { "vacuum-size", required_argument
, NULL
, ARG_VACUUM_SIZE
},
520 { "vacuum-files", required_argument
, NULL
, ARG_VACUUM_FILES
},
521 { "vacuum-time", required_argument
, NULL
, ARG_VACUUM_TIME
},
522 { "no-hostname", no_argument
, NULL
, ARG_NO_HOSTNAME
},
523 { "output-fields", required_argument
, NULL
, ARG_OUTPUT_FIELDS
},
524 { "namespace", required_argument
, NULL
, ARG_NAMESPACE
},
533 while ((c
= getopt_long(argc
, argv
, "hefo:aln::qmb::kD:p:g:c:S:U:t:u:NF:xrM:", options
, NULL
)) >= 0)
544 arg_pager_flags
|= PAGER_DISABLE
;
548 arg_pager_flags
|= PAGER_JUMP_TO_END
;
550 if (arg_lines
== ARG_LINES_DEFAULT
)
560 if (streq(optarg
, "help")) {
561 DUMP_STRING_TABLE(output_mode
, OutputMode
, _OUTPUT_MODE_MAX
);
565 arg_output
= output_mode_from_string(optarg
);
567 return log_error_errno(arg_output
, "Unknown output format '%s'.", optarg
);
569 if (IN_SET(arg_output
, OUTPUT_EXPORT
, OUTPUT_JSON
, OUTPUT_JSON_PRETTY
, OUTPUT_JSON_SSE
, OUTPUT_JSON_SEQ
, OUTPUT_CAT
))
588 if (streq(optarg
, "all"))
589 arg_lines
= ARG_LINES_ALL
;
591 r
= safe_atoi(optarg
, &arg_lines
);
592 if (r
< 0 || arg_lines
< 0)
593 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
), "Failed to parse lines '%s'", optarg
);
598 /* Hmm, no argument? Maybe the next
599 * word on the command line is
600 * supposed to be the argument? Let's
601 * see if there is one, and is
605 if (streq(argv
[optind
], "all")) {
606 arg_lines
= ARG_LINES_ALL
;
608 } else if (safe_atoi(argv
[optind
], &n
) >= 0 && n
>= 0) {
622 arg_action
= ACTION_NEW_ID128
;
635 arg_boot_id
= SD_ID128_NULL
;
641 arg_boot_id
= SD_ID128_NULL
;
645 r
= parse_boot_descriptor(optarg
, &arg_boot_id
, &arg_boot_offset
);
647 return log_error_errno(r
, "Failed to parse boot descriptor '%s'", optarg
);
651 /* Hmm, no argument? Maybe the next
652 * word on the command line is
653 * supposed to be the argument? Let's
654 * see if there is one and is parsable
655 * as a boot descriptor... */
656 } else if (optind
< argc
) {
657 r
= parse_boot_descriptor(argv
[optind
], &arg_boot_id
, &arg_boot_offset
);
666 arg_action
= ACTION_LIST_BOOTS
;
670 arg_boot
= arg_dmesg
= true;
674 arg_journal_type
|= SD_JOURNAL_SYSTEM
;
678 arg_journal_type
|= SD_JOURNAL_CURRENT_USER
;
682 arg_machine
= optarg
;
686 if (streq(optarg
, "*")) {
687 arg_namespace_flags
= SD_JOURNAL_ALL_NAMESPACES
;
688 arg_namespace
= NULL
;
689 } else if (startswith(optarg
, "+")) {
690 arg_namespace_flags
= SD_JOURNAL_INCLUDE_DEFAULT_NAMESPACE
;
691 arg_namespace
= optarg
+ 1;
692 } else if (isempty(optarg
)) {
693 arg_namespace_flags
= 0;
694 arg_namespace
= NULL
;
696 arg_namespace_flags
= 0;
697 arg_namespace
= optarg
;
703 arg_directory
= optarg
;
707 if (streq(optarg
, "-"))
708 /* An undocumented feature: we can read journal files from STDIN. We don't document
709 * this though, since after all we only support this for mmap-able, seekable files, and
710 * not for example pipes which are probably the primary usecase for reading things from
711 * STDIN. To avoid confusion we hence don't document this feature. */
712 arg_file_stdin
= true;
714 r
= glob_extend(&arg_file
, optarg
, GLOB_NOCHECK
);
716 return log_error_errno(r
, "Failed to add paths: %m");
721 r
= parse_path_argument(optarg
, /* suppress_root= */ true, &arg_root
);
727 r
= parse_path_argument(optarg
, /* suppress_root= */ false, &arg_image
);
736 case ARG_CURSOR_FILE
:
737 arg_cursor_file
= optarg
;
740 case ARG_AFTER_CURSOR
:
741 arg_after_cursor
= optarg
;
744 case ARG_SHOW_CURSOR
:
745 arg_show_cursor
= true;
749 arg_action
= ACTION_PRINT_HEADER
;
753 arg_action
= ACTION_VERIFY
;
757 arg_action
= ACTION_DISK_USAGE
;
760 case ARG_VACUUM_SIZE
:
761 r
= parse_size(optarg
, 1024, &arg_vacuum_size
);
763 return log_error_errno(r
, "Failed to parse vacuum size: %s", optarg
);
765 arg_action
= arg_action
== ACTION_ROTATE
? ACTION_ROTATE_AND_VACUUM
: ACTION_VACUUM
;
768 case ARG_VACUUM_FILES
:
769 r
= safe_atou64(optarg
, &arg_vacuum_n_files
);
771 return log_error_errno(r
, "Failed to parse vacuum files: %s", optarg
);
773 arg_action
= arg_action
== ACTION_ROTATE
? ACTION_ROTATE_AND_VACUUM
: ACTION_VACUUM
;
776 case ARG_VACUUM_TIME
:
777 r
= parse_sec(optarg
, &arg_vacuum_time
);
779 return log_error_errno(r
, "Failed to parse vacuum time: %s", optarg
);
781 arg_action
= arg_action
== ACTION_ROTATE
? ACTION_ROTATE_AND_VACUUM
: ACTION_VACUUM
;
790 arg_action
= ACTION_SETUP_KEYS
;
794 r
= free_and_strdup(&arg_verify_key
, optarg
);
797 /* Use memset not explicit_bzero() or similar so this doesn't look confusing
798 * in ps or htop output. */
799 memset(optarg
, 'x', strlen(optarg
));
801 arg_action
= ACTION_VERIFY
;
806 r
= parse_sec(optarg
, &arg_interval
);
807 if (r
< 0 || arg_interval
<= 0)
808 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
809 "Failed to parse sealing key change interval: %s", optarg
);
816 return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP
),
817 "Compiled without forward-secure sealing support.");
823 dots
= strstr(optarg
, "..");
825 _cleanup_free_
char *a
= NULL
;
829 a
= strndup(optarg
, dots
- optarg
);
833 from
= log_level_from_string(a
);
834 to
= log_level_from_string(dots
+ 2);
836 if (from
< 0 || to
< 0)
837 return log_error_errno(from
< 0 ? from
: to
,
838 "Failed to parse log level range %s", optarg
);
843 for (i
= from
; i
<= to
; i
++)
844 arg_priorities
|= 1 << i
;
846 for (i
= to
; i
<= from
; i
++)
847 arg_priorities
|= 1 << i
;
853 p
= log_level_from_string(optarg
);
855 return log_error_errno(p
, "Unknown log level %s", optarg
);
859 for (i
= 0; i
<= p
; i
++)
860 arg_priorities
|= 1 << i
;
870 _cleanup_free_
char *fac
= NULL
;
873 r
= extract_first_word(&p
, &fac
, ",", 0);
875 return log_error_errno(r
, "Failed to parse facilities: %s", optarg
);
879 if (streq(fac
, "help")) {
884 num
= log_facility_unshifted_from_string(fac
);
886 return log_error_errno(num
, "Bad --facility= argument \"%s\".", fac
);
888 if (set_ensure_put(&arg_facilities
, NULL
, INT_TO_PTR(num
)) < 0)
897 arg_pattern
= optarg
;
900 case ARG_CASE_SENSITIVE
:
902 r
= parse_boolean(optarg
);
904 return log_error_errno(r
, "Bad --case-sensitive= argument \"%s\": %m", optarg
);
905 arg_case_sensitive
= r
;
907 arg_case_sensitive
= true;
912 case ARG_CASE_SENSITIVE
:
913 return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP
), "Compiled without pattern matching support");
917 r
= parse_timestamp(optarg
, &arg_since
);
919 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
920 "Failed to parse timestamp: %s", optarg
);
921 arg_since_set
= true;
925 r
= parse_timestamp(optarg
, &arg_until
);
927 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
928 "Failed to parse timestamp: %s", optarg
);
929 arg_until_set
= true;
933 r
= strv_extend(&arg_syslog_identifier
, optarg
);
939 r
= strv_extend(&arg_system_units
, optarg
);
945 r
= strv_extend(&arg_user_units
, optarg
);
951 arg_action
= ACTION_LIST_FIELDS
;
956 arg_action
= ACTION_LIST_FIELD_NAMES
;
959 case ARG_NO_HOSTNAME
:
960 arg_no_hostname
= true;
967 case ARG_LIST_CATALOG
:
968 arg_action
= ACTION_LIST_CATALOG
;
971 case ARG_DUMP_CATALOG
:
972 arg_action
= ACTION_DUMP_CATALOG
;
975 case ARG_UPDATE_CATALOG
:
976 arg_action
= ACTION_UPDATE_CATALOG
;
988 arg_action
= ACTION_FLUSH
;
991 case ARG_SMART_RELINQUISH_VAR
: {
992 int root_mnt_id
, log_mnt_id
;
994 /* Try to be smart about relinquishing access to /var/log/journal/ during shutdown:
995 * if it's on the same mount as the root file system there's no point in
996 * relinquishing access and we can leave journald write to it until the very last
999 r
= path_get_mnt_id("/", &root_mnt_id
);
1001 log_debug_errno(r
, "Failed to get root mount ID, ignoring: %m");
1003 r
= path_get_mnt_id("/var/log/journal/", &log_mnt_id
);
1005 log_debug_errno(r
, "Failed to get journal directory mount ID, ignoring: %m");
1006 else if (root_mnt_id
== log_mnt_id
) {
1007 log_debug("/var/log/journal/ is on root file system, not relinquishing access to /var.");
1010 log_debug("/var/log/journal/ is not on the root file system, relinquishing access to it.");
1016 case ARG_RELINQUISH_VAR
:
1017 arg_action
= ACTION_RELINQUISH_VAR
;
1021 arg_action
= arg_action
== ACTION_VACUUM
? ACTION_ROTATE_AND_VACUUM
: ACTION_ROTATE
;
1025 arg_action
= ACTION_SYNC
;
1028 case ARG_OUTPUT_FIELDS
: {
1029 _cleanup_strv_free_
char **v
= NULL
;
1031 v
= strv_split(optarg
, ",");
1035 if (!arg_output_fields
)
1036 arg_output_fields
= TAKE_PTR(v
);
1038 r
= strv_extend_strv(&arg_output_fields
, v
, true);
1049 assert_not_reached("Unhandled option");
1052 if (arg_follow
&& !arg_no_tail
&& !arg_since
&& arg_lines
== ARG_LINES_DEFAULT
)
1055 if (!!arg_directory
+ !!arg_file
+ !!arg_machine
+ !!arg_root
+ !!arg_image
> 1)
1056 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
1057 "Please specify at most one of -D/--directory=, --file=, -M/--machine=, --root=, --image=.");
1059 if (arg_since_set
&& arg_until_set
&& arg_since
> arg_until
)
1060 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
1061 "--since= must be before --until=.");
1063 if (!!arg_cursor
+ !!arg_after_cursor
+ !!arg_since_set
> 1)
1064 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
1065 "Please specify only one of --since=, --cursor=, and --after-cursor.");
1067 if (arg_follow
&& arg_reverse
)
1068 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
1069 "Please specify either --reverse= or --follow=, not both.");
1071 if (!IN_SET(arg_action
, ACTION_SHOW
, ACTION_DUMP_CATALOG
, ACTION_LIST_CATALOG
) && optind
< argc
)
1072 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
1073 "Extraneous arguments starting with '%s'",
1076 if ((arg_boot
|| arg_action
== ACTION_LIST_BOOTS
) && arg_merge
)
1077 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
1078 "Using --boot or --list-boots with --merge is not supported.");
1080 if (!strv_isempty(arg_system_units
) && arg_journal_type
== SD_JOURNAL_CURRENT_USER
) {
1081 /* Specifying --user and --unit= at the same time makes no sense (as the former excludes the user
1082 * journal, but the latter excludes the system journal, thus resulting in empty output). Let's be nice
1083 * to users, and automatically turn --unit= into --user-unit= if combined with --user. */
1084 r
= strv_extend_strv(&arg_user_units
, arg_system_units
, true);
1088 arg_system_units
= strv_free(arg_system_units
);
1099 if (arg_case_sensitive
>= 0)
1100 flags
= !arg_case_sensitive
* PCRE2_CASELESS
;
1102 _cleanup_(sym_pcre2_match_data_freep
) pcre2_match_data
*md
= NULL
;
1104 _cleanup_(sym_pcre2_code_freep
) pcre2_code
*cs
= NULL
;
1106 md
= sym_pcre2_match_data_create(1, NULL
);
1110 r
= pattern_compile("[[:upper:]]", 0, &cs
);
1114 r
= sym_pcre2_match(cs
, (PCRE2_SPTR8
) arg_pattern
, PCRE2_ZERO_TERMINATED
, 0, 0, md
, NULL
);
1117 flags
= !has_case
* PCRE2_CASELESS
;
1120 log_debug("Doing case %s matching based on %s",
1121 flags
& PCRE2_CASELESS
? "insensitive" : "sensitive",
1122 arg_case_sensitive
>= 0 ? "request" : "pattern casing");
1124 r
= pattern_compile(arg_pattern
, flags
, &arg_compiled_pattern
);
1133 static int add_matches(sd_journal
*j
, char **args
) {
1135 bool have_term
= false;
1139 STRV_FOREACH(i
, args
) {
1142 if (streq(*i
, "+")) {
1145 r
= sd_journal_add_disjunction(j
);
1148 } else if (path_is_absolute(*i
)) {
1149 _cleanup_free_
char *p
= NULL
, *t
= NULL
, *t2
= NULL
, *interpreter
= NULL
;
1152 r
= chase_symlinks(*i
, NULL
, CHASE_TRAIL_SLASH
, &p
, NULL
);
1154 return log_error_errno(r
, "Couldn't canonicalize path: %m");
1156 if (lstat(p
, &st
) < 0)
1157 return log_error_errno(errno
, "Couldn't stat file: %m");
1159 if (S_ISREG(st
.st_mode
) && (0111 & st
.st_mode
)) {
1160 if (executable_is_script(p
, &interpreter
) > 0) {
1161 _cleanup_free_
char *comm
= NULL
;
1163 comm
= strndup(basename(p
), 15);
1167 t
= strjoin("_COMM=", comm
);
1171 /* Append _EXE only if the interpreter is not a link.
1172 Otherwise, it might be outdated often. */
1173 if (lstat(interpreter
, &st
) == 0 && !S_ISLNK(st
.st_mode
)) {
1174 t2
= strjoin("_EXE=", interpreter
);
1179 t
= strjoin("_EXE=", p
);
1184 r
= sd_journal_add_match(j
, t
, 0);
1187 r
= sd_journal_add_match(j
, t2
, 0);
1189 } else if (S_ISCHR(st
.st_mode
) || S_ISBLK(st
.st_mode
)) {
1190 r
= add_matches_for_device(j
, p
);
1194 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
1195 "File is neither a device node, nor regular file, nor executable: %s",
1200 r
= sd_journal_add_match(j
, *i
, 0);
1205 return log_error_errno(r
, "Failed to add match '%s': %m", *i
);
1208 if (!strv_isempty(args
) && !have_term
)
1209 return log_error_errno(SYNTHETIC_ERRNO(EINVAL
),
1210 "\"+\" can only be used between terms");
1215 static void boot_id_free_all(BootId
*l
) {
1219 LIST_REMOVE(boot_list
, l
, i
);
1224 static int discover_next_boot(sd_journal
*j
,
1225 sd_id128_t previous_boot_id
,
1229 _cleanup_free_ BootId
*next_boot
= NULL
;
1230 char match
[9+32+1] = "_BOOT_ID=";
1237 /* We expect the journal to be on the last position of a boot
1238 * (in relation to the direction we are going), so that the next
1239 * invocation of sd_journal_next/previous will be from a different
1240 * boot. We then collect any information we desire and then jump
1241 * to the last location of the new boot by using a _BOOT_ID match
1242 * coming from the other journal direction. */
1244 /* Make sure we aren't restricted by any _BOOT_ID matches, so that
1245 * we can actually advance to a *different* boot. */
1246 sd_journal_flush_matches(j
);
1250 r
= sd_journal_previous(j
);
1252 r
= sd_journal_next(j
);
1256 return 0; /* End of journal, yay. */
1258 r
= sd_journal_get_monotonic_usec(j
, NULL
, &boot_id
);
1262 /* We iterate through this in a loop, until the boot ID differs from the previous one. Note that
1263 * normally, this will only require a single iteration, as we seeked to the last entry of the previous
1264 * boot entry already. However, it might happen that the per-journal-field entry arrays are less
1265 * complete than the main entry array, and hence might reference an entry that's not actually the last
1266 * one of the boot ID as last one. Let's hence use the per-field array is initial seek position to
1267 * speed things up, but let's not trust that it is complete, and hence, manually advance as
1270 } while (sd_id128_equal(boot_id
, previous_boot_id
));
1272 next_boot
= new0(BootId
, 1);
1276 next_boot
->id
= boot_id
;
1278 r
= sd_journal_get_realtime_usec(j
, &next_boot
->first
);
1282 /* Now seek to the last occurrence of this boot ID. */
1283 sd_id128_to_string(next_boot
->id
, match
+ 9);
1284 r
= sd_journal_add_match(j
, match
, sizeof(match
) - 1);
1289 r
= sd_journal_seek_head(j
);
1291 r
= sd_journal_seek_tail(j
);
1296 r
= sd_journal_next(j
);
1298 r
= sd_journal_previous(j
);
1302 return log_debug_errno(SYNTHETIC_ERRNO(ENODATA
),
1303 "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. */
1305 r
= sd_journal_get_realtime_usec(j
, &next_boot
->last
);
1309 *ret
= TAKE_PTR(next_boot
);
1314 static int get_boots(
1317 sd_id128_t
*boot_id
,
1322 BootId
*head
= NULL
, *tail
= NULL
, *id
;
1323 const bool advance_older
= boot_id
&& offset
<= 0;
1324 sd_id128_t previous_boot_id
;
1328 /* Adjust for the asymmetry that offset 0 is
1329 * the last (and current) boot, while 1 is considered the
1330 * (chronological) first boot in the journal. */
1331 skip_once
= boot_id
&& sd_id128_is_null(*boot_id
) && offset
<= 0;
1333 /* Advance to the earliest/latest occurrence of our reference
1334 * boot ID (taking our lookup direction into account), so that
1335 * discover_next_boot() can do its job.
1336 * If no reference is given, the journal head/tail will do,
1337 * they're "virtual" boots after all. */
1338 if (boot_id
&& !sd_id128_is_null(*boot_id
)) {
1339 char match
[9+32+1] = "_BOOT_ID=";
1341 sd_journal_flush_matches(j
);
1343 sd_id128_to_string(*boot_id
, match
+ 9);
1344 r
= sd_journal_add_match(j
, match
, sizeof(match
) - 1);
1349 r
= sd_journal_seek_head(j
); /* seek to oldest */
1351 r
= sd_journal_seek_tail(j
); /* seek to newest */
1356 r
= sd_journal_next(j
); /* read the oldest entry */
1358 r
= sd_journal_previous(j
); /* read the most recently added entry */
1363 else if (offset
== 0) {
1368 /* At this point the read pointer is positioned at the oldest/newest occurrence of the reference boot
1369 * ID. After flushing the matches, one more invocation of _previous()/_next() will hence place us at
1370 * the following entry, which must then have an older/newer boot ID */
1374 r
= sd_journal_seek_tail(j
); /* seek to newest */
1376 r
= sd_journal_seek_head(j
); /* seek to oldest */
1380 /* No sd_journal_next()/_previous() here.
1382 * At this point the read pointer is positioned after the newest/before the oldest entry in the whole
1383 * journal. The next invocation of _previous()/_next() will hence position us at the newest/oldest
1387 previous_boot_id
= SD_ID128_NULL
;
1389 _cleanup_free_ BootId
*current
= NULL
;
1391 r
= discover_next_boot(j
, previous_boot_id
, advance_older
, ¤t
);
1393 boot_id_free_all(head
);
1400 previous_boot_id
= current
->id
;
1404 offset
+= advance_older
? 1 : -1;
1409 *boot_id
= current
->id
;
1413 LIST_FOREACH(boot_list
, id
, head
) {
1414 if (sd_id128_equal(id
->id
, current
->id
)) {
1415 /* boot id already stored, something wrong with the journal files */
1416 /* exiting as otherwise this problem would cause forever loop */
1420 LIST_INSERT_AFTER(boot_list
, head
, tail
, current
);
1421 tail
= TAKE_PTR(current
);
1430 sd_journal_flush_matches(j
);
1435 static int list_boots(sd_journal
*j
) {
1437 BootId
*id
, *all_ids
;
1441 count
= get_boots(j
, &all_ids
, NULL
, 0);
1443 return log_error_errno(count
, "Failed to determine boots: %m");
1447 (void) pager_open(arg_pager_flags
);
1449 /* numbers are one less, but we need an extra char for the sign */
1450 w
= DECIMAL_STR_WIDTH(count
- 1) + 1;
1453 LIST_FOREACH(boot_list
, id
, all_ids
) {
1454 char a
[FORMAT_TIMESTAMP_MAX
], b
[FORMAT_TIMESTAMP_MAX
];
1456 printf("% *i " SD_ID128_FORMAT_STR
" %s—%s\n",
1458 SD_ID128_FORMAT_VAL(id
->id
),
1459 format_timestamp_maybe_utc(a
, sizeof(a
), id
->first
),
1460 format_timestamp_maybe_utc(b
, sizeof(b
), id
->last
));
1464 boot_id_free_all(all_ids
);
1469 static int add_boot(sd_journal
*j
) {
1470 char match
[9+32+1] = "_BOOT_ID=";
1479 /* Take a shortcut and use the current boot_id, which we can do very quickly.
1480 * We can do this only when we logs are coming from the current machine,
1481 * so take the slow path if log location is specified. */
1482 if (arg_boot_offset
== 0 && sd_id128_is_null(arg_boot_id
) &&
1483 !arg_directory
&& !arg_file
&& !arg_root
)
1484 return add_match_this_boot(j
, arg_machine
);
1486 boot_id
= arg_boot_id
;
1487 r
= get_boots(j
, NULL
, &boot_id
, arg_boot_offset
);
1490 const char *reason
= (r
== 0) ? "No such boot ID in journal" : strerror_safe(r
);
1492 if (sd_id128_is_null(arg_boot_id
))
1493 log_error("Data from the specified boot (%+i) is not available: %s",
1494 arg_boot_offset
, reason
);
1496 log_error("Data from the specified boot ("SD_ID128_FORMAT_STR
") is not available: %s",
1497 SD_ID128_FORMAT_VAL(arg_boot_id
), reason
);
1499 return r
== 0 ? -ENODATA
: r
;
1502 sd_id128_to_string(boot_id
, match
+ 9);
1504 r
= sd_journal_add_match(j
, match
, sizeof(match
) - 1);
1506 return log_error_errno(r
, "Failed to add match: %m");
1508 r
= sd_journal_add_conjunction(j
);
1510 return log_error_errno(r
, "Failed to add conjunction: %m");
1515 static int add_dmesg(sd_journal
*j
) {
1522 r
= sd_journal_add_match(j
, "_TRANSPORT=kernel",
1523 STRLEN("_TRANSPORT=kernel"));
1525 return log_error_errno(r
, "Failed to add match: %m");
1527 r
= sd_journal_add_conjunction(j
);
1529 return log_error_errno(r
, "Failed to add conjunction: %m");
1534 static int get_possible_units(
1540 _cleanup_set_free_free_ Set
*found
= NULL
;
1544 found
= set_new(&string_hash_ops
);
1548 NULSTR_FOREACH(field
, fields
) {
1552 r
= sd_journal_query_unique(j
, field
);
1556 SD_JOURNAL_FOREACH_UNIQUE(j
, data
, size
) {
1557 char **pattern
, *eq
;
1559 _cleanup_free_
char *u
= NULL
;
1561 eq
= memchr(data
, '=', size
);
1563 prefix
= eq
- (char*) data
+ 1;
1567 u
= strndup((char*) data
+ prefix
, size
- prefix
);
1571 STRV_FOREACH(pattern
, patterns
)
1572 if (fnmatch(*pattern
, u
, FNM_NOESCAPE
) == 0) {
1573 log_debug("Matched %s with pattern %s=%s", u
, field
, *pattern
);
1575 r
= set_consume(found
, u
);
1577 if (r
< 0 && r
!= -EEXIST
)
1585 *units
= TAKE_PTR(found
);
1590 /* This list is supposed to return the superset of unit names
1591 * possibly matched by rules added with add_matches_for_unit... */
1592 #define SYSTEM_UNITS \
1596 "OBJECT_SYSTEMD_UNIT\0" \
1599 /* ... and add_matches_for_user_unit */
1600 #define USER_UNITS \
1601 "_SYSTEMD_USER_UNIT\0" \
1603 "COREDUMP_USER_UNIT\0" \
1604 "OBJECT_SYSTEMD_USER_UNIT\0" \
1605 "_SYSTEMD_USER_SLICE\0"
1607 static int add_units(sd_journal
*j
) {
1608 _cleanup_strv_free_
char **patterns
= NULL
;
1614 STRV_FOREACH(i
, arg_system_units
) {
1615 _cleanup_free_
char *u
= NULL
;
1617 r
= unit_name_mangle(*i
, UNIT_NAME_MANGLE_GLOB
| (arg_quiet
? 0 : UNIT_NAME_MANGLE_WARN
), &u
);
1621 if (string_is_glob(u
)) {
1622 r
= strv_push(&patterns
, u
);
1627 r
= add_matches_for_unit(j
, u
);
1630 r
= sd_journal_add_disjunction(j
);
1637 if (!strv_isempty(patterns
)) {
1638 _cleanup_set_free_free_ Set
*units
= NULL
;
1641 r
= get_possible_units(j
, SYSTEM_UNITS
, patterns
, &units
);
1645 SET_FOREACH(u
, units
) {
1646 r
= add_matches_for_unit(j
, u
);
1649 r
= sd_journal_add_disjunction(j
);
1656 patterns
= strv_free(patterns
);
1658 STRV_FOREACH(i
, arg_user_units
) {
1659 _cleanup_free_
char *u
= NULL
;
1661 r
= unit_name_mangle(*i
, UNIT_NAME_MANGLE_GLOB
| (arg_quiet
? 0 : UNIT_NAME_MANGLE_WARN
), &u
);
1665 if (string_is_glob(u
)) {
1666 r
= strv_push(&patterns
, u
);
1671 r
= add_matches_for_user_unit(j
, u
, getuid());
1674 r
= sd_journal_add_disjunction(j
);
1681 if (!strv_isempty(patterns
)) {
1682 _cleanup_set_free_free_ Set
*units
= NULL
;
1685 r
= get_possible_units(j
, USER_UNITS
, patterns
, &units
);
1689 SET_FOREACH(u
, units
) {
1690 r
= add_matches_for_user_unit(j
, u
, getuid());
1693 r
= sd_journal_add_disjunction(j
);
1700 /* Complain if the user request matches but nothing whatsoever was
1701 * found, since otherwise everything would be matched. */
1702 if (!(strv_isempty(arg_system_units
) && strv_isempty(arg_user_units
)) && count
== 0)
1705 r
= sd_journal_add_conjunction(j
);
1712 static int add_priorities(sd_journal
*j
) {
1713 char match
[] = "PRIORITY=0";
1717 if (arg_priorities
== 0xFF)
1720 for (i
= LOG_EMERG
; i
<= LOG_DEBUG
; i
++)
1721 if (arg_priorities
& (1 << i
)) {
1722 match
[sizeof(match
)-2] = '0' + i
;
1724 r
= sd_journal_add_match(j
, match
, strlen(match
));
1726 return log_error_errno(r
, "Failed to add match: %m");
1729 r
= sd_journal_add_conjunction(j
);
1731 return log_error_errno(r
, "Failed to add conjunction: %m");
1736 static int add_facilities(sd_journal
*j
) {
1740 SET_FOREACH(p
, arg_facilities
) {
1741 char match
[STRLEN("SYSLOG_FACILITY=") + DECIMAL_STR_MAX(int)];
1743 xsprintf(match
, "SYSLOG_FACILITY=%d", PTR_TO_INT(p
));
1745 r
= sd_journal_add_match(j
, match
, strlen(match
));
1747 return log_error_errno(r
, "Failed to add match: %m");
1753 static int add_syslog_identifier(sd_journal
*j
) {
1759 STRV_FOREACH(i
, arg_syslog_identifier
) {
1760 _cleanup_free_
char *u
= NULL
;
1762 u
= strjoin("SYSLOG_IDENTIFIER=", *i
);
1765 r
= sd_journal_add_match(j
, u
, 0);
1768 r
= sd_journal_add_disjunction(j
);
1773 r
= sd_journal_add_conjunction(j
);
1781 static int format_journal_url(
1790 _cleanup_free_
char *url
= NULL
;
1791 _cleanup_fclose_
FILE *f
= NULL
;
1792 size_t url_size
= 0;
1796 assert(seed_size
> 0);
1798 f
= open_memstream_unlocked(&url
, &url_size
);
1805 for (size_t i
= 0; i
< seed_size
; i
++) {
1806 if (i
> 0 && i
% 3 == 0)
1808 fprintf(f
, "%02x", ((uint8_t*) seed
)[i
]);
1811 fprintf(f
, "/%"PRIx64
"-%"PRIx64
, start
, interval
);
1814 fprintf(f
, "?machine=" SD_ID128_FORMAT_STR
, SD_ID128_FORMAT_VAL(machine
));
1816 fprintf(f
, ";hostname=%s", hn
);
1819 r
= fflush_and_check(f
);
1824 *ret_url
= TAKE_PTR(url
);
1829 static int setup_keys(void) {
1831 size_t mpk_size
, seed_size
, state_size
;
1832 _cleanup_(unlink_and_freep
) char *k
= NULL
;
1833 _cleanup_free_
char *p
= NULL
;
1834 uint8_t *mpk
, *seed
, *state
;
1835 _cleanup_close_
int fd
= -1;
1836 sd_id128_t machine
, boot
;
1841 r
= stat("/var/log/journal", &st
);
1842 if (r
< 0 && !IN_SET(errno
, ENOENT
, ENOTDIR
))
1843 return log_error_errno(errno
, "stat(\"%s\") failed: %m", "/var/log/journal");
1845 if (r
< 0 || !S_ISDIR(st
.st_mode
)) {
1846 log_error("%s is not a directory, must be using persistent logging for FSS.",
1847 "/var/log/journal");
1848 return r
< 0 ? -errno
: -ENOTDIR
;
1851 r
= sd_id128_get_machine(&machine
);
1853 return log_error_errno(r
, "Failed to get machine ID: %m");
1855 r
= sd_id128_get_boot(&boot
);
1857 return log_error_errno(r
, "Failed to get boot ID: %m");
1859 if (asprintf(&p
, "/var/log/journal/" SD_ID128_FORMAT_STR
"/fss",
1860 SD_ID128_FORMAT_VAL(machine
)) < 0)
1865 if (r
< 0 && errno
!= ENOENT
)
1866 return log_error_errno(errno
, "unlink(\"%s\") failed: %m", p
);
1867 } else if (access(p
, F_OK
) >= 0)
1868 return log_error_errno(SYNTHETIC_ERRNO(EEXIST
),
1869 "Sealing key file %s exists already. Use --force to recreate.", p
);
1871 if (asprintf(&k
, "/var/log/journal/" SD_ID128_FORMAT_STR
"/fss.tmp.XXXXXX",
1872 SD_ID128_FORMAT_VAL(machine
)) < 0)
1875 mpk_size
= FSPRG_mskinbytes(FSPRG_RECOMMENDED_SECPAR
);
1876 mpk
= alloca(mpk_size
);
1878 seed_size
= FSPRG_RECOMMENDED_SEEDLEN
;
1879 seed
= alloca(seed_size
);
1881 state_size
= FSPRG_stateinbytes(FSPRG_RECOMMENDED_SECPAR
);
1882 state
= alloca(state_size
);
1884 log_info("Generating seed...");
1885 r
= genuine_random_bytes(seed
, seed_size
, RANDOM_BLOCK
);
1887 return log_error_errno(r
, "Failed to acquire random seed: %m");
1889 log_info("Generating key pair...");
1890 FSPRG_GenMK(NULL
, mpk
, seed
, seed_size
, FSPRG_RECOMMENDED_SECPAR
);
1892 log_info("Generating sealing key...");
1893 FSPRG_GenState0(state
, mpk
, seed
, seed_size
);
1895 assert(arg_interval
> 0);
1897 n
= now(CLOCK_REALTIME
);
1901 fd
= mkostemp_safe(k
);
1903 return log_error_errno(fd
, "Failed to open %s: %m", k
);
1905 /* Enable secure remove, exclusion from dump, synchronous writing and in-place updating */
1906 static const unsigned chattr_flags
[] = {
1912 for (size_t j
= 0; j
< ELEMENTSOF(chattr_flags
); j
++) {
1913 r
= chattr_fd(fd
, chattr_flags
[j
], chattr_flags
[j
], NULL
);
1915 log_full_errno(ERRNO_IS_NOT_SUPPORTED(r
) ? LOG_DEBUG
: LOG_WARNING
, r
,
1916 "Failed to set file attribute 0x%x: %m", chattr_flags
[j
]);
1919 struct FSSHeader h
= {
1920 .signature
= { 'K', 'S', 'H', 'H', 'R', 'H', 'L', 'P' },
1921 .machine_id
= machine
,
1923 .header_size
= htole64(sizeof(h
)),
1924 .start_usec
= htole64(n
* arg_interval
),
1925 .interval_usec
= htole64(arg_interval
),
1926 .fsprg_secpar
= htole16(FSPRG_RECOMMENDED_SECPAR
),
1927 .fsprg_state_size
= htole64(state_size
),
1930 r
= loop_write(fd
, &h
, sizeof(h
), false);
1932 return log_error_errno(r
, "Failed to write header: %m");
1934 r
= loop_write(fd
, state
, state_size
, false);
1936 return log_error_errno(r
, "Failed to write state: %m");
1938 if (rename(k
, p
) < 0)
1939 return log_error_errno(errno
, "Failed to link file: %m");
1943 _cleanup_free_
char *hn
= NULL
, *key
= NULL
;
1945 r
= format_journal_url(seed
, seed_size
, n
, arg_interval
, hn
, machine
, false, &key
);
1950 hn
= gethostname_malloc();
1952 hostname_cleanup(hn
);
1954 char tsb
[FORMAT_TIMESPAN_MAX
];
1956 "\nNew keys have been generated for host %s%s" SD_ID128_FORMAT_STR
".\n"
1958 "The %ssecret sealing key%s has been written to the following local file.\n"
1959 "This key file is automatically updated when the sealing key is advanced.\n"
1960 "It should not be used on multiple hosts.\n"
1964 "The sealing key is automatically changed every %s.\n"
1966 "Please write down the following %ssecret verification key%s. It should be stored\n"
1967 "in a safe location and should not be saved locally on disk.\n"
1969 strempty(hn
), hn
? "/" : "",
1970 SD_ID128_FORMAT_VAL(machine
),
1971 ansi_highlight(), ansi_normal(),
1973 format_timespan(tsb
, sizeof(tsb
), arg_interval
, 0),
1974 ansi_highlight(), ansi_normal(),
1975 ansi_highlight_red());
1982 fprintf(stderr
, "%s", ansi_normal());
1984 _cleanup_free_
char *url
= NULL
;
1985 r
= format_journal_url(seed
, seed_size
, n
, arg_interval
, hn
, machine
, true, &url
);
1989 (void) print_qrcode(stderr
,
1990 "To transfer the verification key to your phone scan the QR code below",
1997 return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP
),
1998 "Forward-secure sealing not available.");
2002 static int verify(sd_journal
*j
) {
2008 log_show_color(true);
2010 ORDERED_HASHMAP_FOREACH(f
, j
->files
) {
2012 usec_t first
= 0, validated
= 0, last
= 0;
2015 if (!arg_verify_key
&& JOURNAL_HEADER_SEALED(f
->header
))
2016 log_notice("Journal file %s has sealing enabled but verification key has not been passed using --verify-key=.", f
->path
);
2019 k
= journal_file_verify(f
, arg_verify_key
, &first
, &validated
, &last
, true);
2021 /* If the key was invalid give up right-away. */
2024 r
= log_warning_errno(k
, "FAIL: %s (%m)", f
->path
);
2026 char a
[FORMAT_TIMESTAMP_MAX
], b
[FORMAT_TIMESTAMP_MAX
], c
[FORMAT_TIMESPAN_MAX
];
2027 log_info("PASS: %s", f
->path
);
2029 if (arg_verify_key
&& JOURNAL_HEADER_SEALED(f
->header
)) {
2030 if (validated
> 0) {
2031 log_info("=> Validated from %s to %s, final %s entries not sealed.",
2032 format_timestamp_maybe_utc(a
, sizeof(a
), first
),
2033 format_timestamp_maybe_utc(b
, sizeof(b
), validated
),
2034 format_timespan(c
, sizeof(c
), last
> validated
? last
- validated
: 0, 0));
2035 } else if (last
> 0)
2036 log_info("=> No sealing yet, %s of entries not sealed.",
2037 format_timespan(c
, sizeof(c
), last
- first
, 0));
2039 log_info("=> No sealing yet, no entries in file.");
2047 static int simple_varlink_call(const char *option
, const char *method
) {
2048 _cleanup_(varlink_flush_close_unrefp
) Varlink
*link
= NULL
;
2049 const char *error
, *fn
;
2053 return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP
), "%s is not supported in conjunction with --machine=.", option
);
2055 fn
= arg_namespace
?
2056 strjoina("/run/systemd/journal.", arg_namespace
, "/io.systemd.journal") :
2057 "/run/systemd/journal/io.systemd.journal";
2059 r
= varlink_connect_address(&link
, fn
);
2061 return log_error_errno(r
, "Failed to connect to %s: %m", fn
);
2063 (void) varlink_set_description(link
, "journal");
2064 (void) varlink_set_relative_timeout(link
, USEC_INFINITY
);
2066 r
= varlink_call(link
, method
, NULL
, NULL
, &error
, NULL
);
2068 return log_error_errno(r
, "Failed to execute varlink call: %m");
2070 return log_error_errno(SYNTHETIC_ERRNO(ENOANO
),
2071 "Failed to execute varlink call: %s", error
);
2076 static int flush_to_var(void) {
2077 return simple_varlink_call("--flush", "io.systemd.Journal.FlushToVar");
2080 static int relinquish_var(void) {
2081 return simple_varlink_call("--relinquish-var/--smart-relinquish-var", "io.systemd.Journal.RelinquishVar");
2084 static int rotate(void) {
2085 return simple_varlink_call("--rotate", "io.systemd.Journal.Rotate");
2088 static int sync_journal(void) {
2089 return simple_varlink_call("--sync", "io.systemd.Journal.Synchronize");
2092 static int wait_for_change(sd_journal
*j
, int poll_fd
) {
2093 struct pollfd pollfds
[] = {
2094 { .fd
= poll_fd
, .events
= POLLIN
},
2095 { .fd
= STDOUT_FILENO
},
2101 assert(poll_fd
>= 0);
2103 /* Much like sd_journal_wait() but also keeps an eye on STDOUT, and exits as soon as we see a POLLHUP on that,
2104 * i.e. when it is closed. */
2106 r
= sd_journal_get_timeout(j
, &timeout
);
2108 return log_error_errno(r
, "Failed to determine journal waiting time: %m");
2110 r
= ppoll_usec(pollfds
, ELEMENTSOF(pollfds
), timeout
);
2114 return log_error_errno(r
, "Couldn't wait for journal event: %m");
2116 if (pollfds
[1].revents
& (POLLHUP
|POLLERR
)) /* STDOUT has been closed? */
2117 return log_debug_errno(SYNTHETIC_ERRNO(ECANCELED
),
2118 "Standard output has been closed.");
2120 r
= sd_journal_process(j
);
2122 return log_error_errno(r
, "Failed to process journal events: %m");
2127 int main(int argc
, char *argv
[]) {
2128 _cleanup_(loop_device_unrefp
) LoopDevice
*loop_device
= NULL
;
2129 _cleanup_(decrypted_image_unrefp
) DecryptedImage
*decrypted_image
= NULL
;
2130 _cleanup_(umount_and_rmdir_and_freep
) char *unlink_dir
= NULL
;
2131 bool previous_boot_id_valid
= false, first_line
= true, ellipsized
= false, need_seek
= false;
2132 bool use_cursor
= false, after_cursor
= false;
2133 _cleanup_(sd_journal_closep
) sd_journal
*j
= NULL
;
2134 sd_id128_t previous_boot_id
;
2135 int n_shown
= 0, r
, poll_fd
= -1;
2137 setlocale(LC_ALL
, "");
2140 /* Increase max number of open files if we can, we might needs this when browsing journal files, which might be
2141 * split up into many files. */
2142 (void) rlimit_nofile_bump(HIGH_RLIMIT_NOFILE
);
2144 r
= parse_argv(argc
, argv
);
2151 r
= mount_image_privately_interactively(
2153 DISSECT_IMAGE_GENERIC_ROOT
|
2154 DISSECT_IMAGE_REQUIRE_ROOT
|
2155 DISSECT_IMAGE_VALIDATE_OS
|
2156 DISSECT_IMAGE_RELAX_VAR_CHECK
|
2157 (arg_action
== ACTION_UPDATE_CATALOG
? DISSECT_IMAGE_FSCK
|DISSECT_IMAGE_GROWFS
: DISSECT_IMAGE_READ_ONLY
),
2164 arg_root
= strdup(unlink_dir
);
2169 signal(SIGWINCH
, columns_lines_cache_reset
);
2172 switch (arg_action
) {
2174 case ACTION_NEW_ID128
:
2175 r
= id128_print_new(ID128_PRINT_PRETTY
);
2178 case ACTION_SETUP_KEYS
:
2182 case ACTION_LIST_CATALOG
:
2183 case ACTION_DUMP_CATALOG
:
2184 case ACTION_UPDATE_CATALOG
: {
2185 _cleanup_free_
char *database
= NULL
;
2187 database
= path_join(arg_root
, CATALOG_DATABASE
);
2193 if (arg_action
== ACTION_UPDATE_CATALOG
) {
2194 r
= catalog_update(database
, arg_root
, catalog_file_dirs
);
2196 log_error_errno(r
, "Failed to list catalog: %m");
2198 bool oneline
= arg_action
== ACTION_LIST_CATALOG
;
2200 (void) pager_open(arg_pager_flags
);
2203 r
= catalog_list_items(stdout
, database
, oneline
, argv
+ optind
);
2205 r
= catalog_list(stdout
, database
, oneline
);
2207 log_error_errno(r
, "Failed to list catalog: %m");
2217 case ACTION_RELINQUISH_VAR
:
2218 r
= relinquish_var();
2230 case ACTION_PRINT_HEADER
:
2232 case ACTION_DISK_USAGE
:
2233 case ACTION_LIST_BOOTS
:
2235 case ACTION_ROTATE_AND_VACUUM
:
2236 case ACTION_LIST_FIELDS
:
2237 case ACTION_LIST_FIELD_NAMES
:
2238 /* These ones require access to the journal files, continue below. */
2242 assert_not_reached("Unknown action");
2246 r
= sd_journal_open_directory(&j
, arg_directory
, arg_journal_type
);
2248 r
= sd_journal_open_directory(&j
, arg_root
, arg_journal_type
| SD_JOURNAL_OS_ROOT
);
2249 else if (arg_file_stdin
)
2250 r
= sd_journal_open_files_fd(&j
, (int[]) { STDIN_FILENO
}, 1, 0);
2252 r
= sd_journal_open_files(&j
, (const char**) arg_file
, 0);
2253 else if (arg_machine
) {
2254 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
2255 _cleanup_(sd_bus_message_unrefp
) sd_bus_message
*reply
= NULL
;
2256 _cleanup_(sd_bus_flush_close_unrefp
) sd_bus
*bus
= NULL
;
2259 if (geteuid() != 0) {
2260 /* The file descriptor returned by OpenMachineRootDirectory() will be owned by users/groups of
2261 * the container, thus we need root privileges to override them. */
2262 r
= log_error_errno(SYNTHETIC_ERRNO(EPERM
), "Using the --machine= switch requires root privileges.");
2266 r
= sd_bus_open_system(&bus
);
2268 log_error_errno(r
, "Failed to open system bus: %m");
2272 r
= sd_bus_call_method(
2274 "org.freedesktop.machine1",
2275 "/org/freedesktop/machine1",
2276 "org.freedesktop.machine1.Manager",
2277 "OpenMachineRootDirectory",
2282 log_error_errno(r
, "Failed to open root directory: %s", bus_error_message(&error
, r
));
2286 r
= sd_bus_message_read(reply
, "h", &fd
);
2288 bus_log_parse_error(r
);
2292 fd
= fcntl(fd
, F_DUPFD_CLOEXEC
, 3);
2294 r
= log_error_errno(errno
, "Failed to duplicate file descriptor: %m");
2298 r
= sd_journal_open_directory_fd(&j
, fd
, SD_JOURNAL_OS_ROOT
);
2302 r
= sd_journal_open_namespace(
2305 (arg_merge
? 0 : SD_JOURNAL_LOCAL_ONLY
) |
2306 arg_namespace_flags
| arg_journal_type
);
2308 log_error_errno(r
, "Failed to open %s: %m", arg_directory
?: arg_file
? "files" : "journal");
2312 r
= journal_access_check_and_warn(j
, arg_quiet
,
2313 !(arg_journal_type
== SD_JOURNAL_CURRENT_USER
|| arg_user_units
));
2317 switch (arg_action
) {
2319 case ACTION_NEW_ID128
:
2320 case ACTION_SETUP_KEYS
:
2321 case ACTION_LIST_CATALOG
:
2322 case ACTION_DUMP_CATALOG
:
2323 case ACTION_UPDATE_CATALOG
:
2327 assert_not_reached("Unexpected action.");
2329 case ACTION_PRINT_HEADER
:
2330 journal_print_header(j
);
2338 case ACTION_DISK_USAGE
: {
2340 char sbytes
[FORMAT_BYTES_MAX
];
2342 r
= sd_journal_get_usage(j
, &bytes
);
2346 printf("Archived and active journals take up %s in the file system.\n",
2347 format_bytes(sbytes
, sizeof(sbytes
), bytes
));
2351 case ACTION_LIST_BOOTS
:
2355 case ACTION_ROTATE_AND_VACUUM
:
2363 case ACTION_VACUUM
: {
2366 HASHMAP_FOREACH(d
, j
->directories_by_path
) {
2369 q
= journal_directory_vacuum(d
->path
, arg_vacuum_size
, arg_vacuum_n_files
, arg_vacuum_time
, NULL
, !arg_quiet
);
2371 r
= log_error_errno(q
, "Failed to vacuum %s: %m", d
->path
);
2377 case ACTION_LIST_FIELD_NAMES
: {
2380 SD_JOURNAL_FOREACH_FIELD(j
, field
) {
2381 printf("%s\n", field
);
2390 case ACTION_LIST_FIELDS
:
2394 assert_not_reached("Unknown action");
2397 if (arg_boot_offset
!= 0 &&
2398 sd_journal_has_runtime_files(j
) > 0 &&
2399 sd_journal_has_persistent_files(j
) == 0) {
2400 log_info("Specifying boot ID or boot offset has no effect, no persistent journal was found.");
2404 /* add_boot() must be called first!
2405 * It may need to seek the journal to find parent boot IDs. */
2416 log_error_errno(r
, "Failed to add filter for units: %m");
2420 r
= add_syslog_identifier(j
);
2422 log_error_errno(r
, "Failed to add filter for syslog identifiers: %m");
2426 r
= add_priorities(j
);
2430 r
= add_facilities(j
);
2434 r
= add_matches(j
, argv
+ optind
);
2438 if (DEBUG_LOGGING
) {
2439 _cleanup_free_
char *filter
= NULL
;
2441 filter
= journal_make_match_string(j
);
2445 log_debug("Journal filter: %s", filter
);
2448 if (arg_action
== ACTION_LIST_FIELDS
) {
2454 r
= sd_journal_set_data_threshold(j
, 0);
2456 log_error_errno(r
, "Failed to unset data size threshold: %m");
2460 r
= sd_journal_query_unique(j
, arg_field
);
2462 log_error_errno(r
, "Failed to query unique data objects: %m");
2466 SD_JOURNAL_FOREACH_UNIQUE(j
, data
, size
) {
2469 if (arg_lines
>= 0 && n_shown
>= arg_lines
)
2472 eq
= memchr(data
, '=', size
);
2474 printf("%.*s\n", (int) (size
- ((const uint8_t*) eq
- (const uint8_t*) data
+ 1)), (const char*) eq
+ 1);
2476 printf("%.*s\n", (int) size
, (const char*) data
);
2485 /* Opening the fd now means the first sd_journal_wait() will actually wait */
2487 poll_fd
= sd_journal_get_fd(j
);
2488 if (poll_fd
== -EMFILE
) {
2489 log_warning_errno(poll_fd
, "Insufficient watch descriptors available. Reverting to -n.");
2491 } else if (poll_fd
== -EMEDIUMTYPE
) {
2492 log_error_errno(poll_fd
, "The --follow switch is not supported in conjunction with reading from STDIN.");
2494 } else if (poll_fd
< 0) {
2495 log_error_errno(poll_fd
, "Failed to get journal fd: %m");
2500 if (arg_cursor
|| arg_after_cursor
|| arg_cursor_file
) {
2501 _cleanup_free_
char *cursor_from_file
= NULL
;
2502 const char *cursor
= arg_cursor
?: arg_after_cursor
;
2504 if (arg_cursor_file
) {
2505 r
= read_one_line_file(arg_cursor_file
, &cursor_from_file
);
2506 if (r
< 0 && r
!= -ENOENT
) {
2507 log_error_errno(r
, "Failed to read cursor file %s: %m", arg_cursor_file
);
2512 cursor
= cursor_from_file
;
2513 after_cursor
= true;
2516 after_cursor
= arg_after_cursor
;
2519 r
= sd_journal_seek_cursor(j
, cursor
);
2521 log_error_errno(r
, "Failed to seek to cursor: %m");
2530 r
= sd_journal_next_skip(j
, 1 + after_cursor
);
2532 r
= sd_journal_previous_skip(j
, 1 + after_cursor
);
2534 if (after_cursor
&& r
< 2) {
2535 /* We couldn't find the next entry after the cursor. */
2542 } else if (arg_since_set
&& !arg_reverse
) {
2543 r
= sd_journal_seek_realtime_usec(j
, arg_since
);
2545 log_error_errno(r
, "Failed to seek to date: %m");
2548 r
= sd_journal_next(j
);
2550 } else if (arg_until_set
&& arg_reverse
) {
2551 r
= sd_journal_seek_realtime_usec(j
, arg_until
);
2553 log_error_errno(r
, "Failed to seek to date: %m");
2556 r
= sd_journal_previous(j
);
2558 } else if (arg_reverse
) {
2559 r
= sd_journal_seek_tail(j
);
2561 log_error_errno(r
, "Failed to seek to tail: %m");
2565 r
= sd_journal_previous(j
);
2567 } else if (arg_lines
>= 0) {
2568 r
= sd_journal_seek_tail(j
);
2570 log_error_errno(r
, "Failed to seek to tail: %m");
2574 r
= sd_journal_previous_skip(j
, arg_lines
);
2577 r
= sd_journal_seek_head(j
);
2579 log_error_errno(r
, "Failed to seek to head: %m");
2583 r
= sd_journal_next(j
);
2587 log_error_errno(r
, "Failed to iterate through journal: %m");
2594 (void) pager_open(arg_pager_flags
);
2596 if (!arg_quiet
&& (arg_lines
!= 0 || arg_follow
)) {
2598 char start_buf
[FORMAT_TIMESTAMP_MAX
], end_buf
[FORMAT_TIMESTAMP_MAX
];
2600 r
= sd_journal_get_cutoff_realtime_usec(j
, &start
, &end
);
2602 log_error_errno(r
, "Failed to get cutoff: %m");
2608 printf("-- Journal begins at %s. --\n",
2609 format_timestamp_maybe_utc(start_buf
, sizeof(start_buf
), start
));
2611 printf("-- Journal begins at %s, ends at %s. --\n",
2612 format_timestamp_maybe_utc(start_buf
, sizeof(start_buf
), start
),
2613 format_timestamp_maybe_utc(end_buf
, sizeof(end_buf
), end
));
2618 while (arg_lines
< 0 || n_shown
< arg_lines
|| (arg_follow
&& !first_line
)) {
2620 size_t highlight
[2] = {};
2624 r
= sd_journal_next(j
);
2626 r
= sd_journal_previous(j
);
2628 log_error_errno(r
, "Failed to iterate through journal: %m");
2635 if (arg_until_set
&& !arg_reverse
) {
2638 r
= sd_journal_get_realtime_usec(j
, &usec
);
2640 log_error_errno(r
, "Failed to determine timestamp: %m");
2643 if (usec
> arg_until
)
2647 if (arg_since_set
&& arg_reverse
) {
2650 r
= sd_journal_get_realtime_usec(j
, &usec
);
2652 log_error_errno(r
, "Failed to determine timestamp: %m");
2655 if (usec
< arg_since
)
2659 if (!arg_merge
&& !arg_quiet
) {
2662 r
= sd_journal_get_monotonic_usec(j
, NULL
, &boot_id
);
2664 if (previous_boot_id_valid
&&
2665 !sd_id128_equal(boot_id
, previous_boot_id
))
2666 printf("%s-- Boot "SD_ID128_FORMAT_STR
" --%s\n",
2667 ansi_highlight(), SD_ID128_FORMAT_VAL(boot_id
), ansi_normal());
2669 previous_boot_id
= boot_id
;
2670 previous_boot_id_valid
= true;
2675 if (arg_compiled_pattern
) {
2676 _cleanup_(sym_pcre2_match_data_freep
) pcre2_match_data
*md
= NULL
;
2677 const void *message
;
2681 md
= sym_pcre2_match_data_create(1, NULL
);
2685 r
= sd_journal_get_data(j
, "MESSAGE", &message
, &len
);
2692 log_error_errno(r
, "Failed to get MESSAGE field: %m");
2696 assert_se(message
= startswith(message
, "MESSAGE="));
2698 r
= sym_pcre2_match(arg_compiled_pattern
,
2700 len
- strlen("MESSAGE="),
2701 0, /* start at offset 0 in the subject */
2702 0, /* default options */
2705 if (r
== PCRE2_ERROR_NOMATCH
) {
2710 unsigned char buf
[LINE_MAX
];
2713 r2
= sym_pcre2_get_error_message(r
, buf
, sizeof buf
);
2714 log_error("Pattern matching failed: %s",
2715 r2
< 0 ? "unknown error" : (char*) buf
);
2720 ovec
= sym_pcre2_get_ovector_pointer(md
);
2721 highlight
[0] = ovec
[0];
2722 highlight
[1] = ovec
[1];
2727 arg_all
* OUTPUT_SHOW_ALL
|
2728 arg_full
* OUTPUT_FULL_WIDTH
|
2729 colors_enabled() * OUTPUT_COLOR
|
2730 arg_catalog
* OUTPUT_CATALOG
|
2731 arg_utc
* OUTPUT_UTC
|
2732 arg_no_hostname
* OUTPUT_NO_HOSTNAME
;
2734 r
= show_journal_entry(stdout
, j
, arg_output
, 0, flags
,
2735 arg_output_fields
, highlight
, &ellipsized
);
2737 if (r
== -EADDRNOTAVAIL
)
2744 /* If journalctl take a long time to process messages, and during that time journal file
2745 * rotation occurs, a journalctl client will keep those rotated files open until it calls
2746 * sd_journal_process(), which typically happens as a result of calling sd_journal_wait() below
2747 * in the "following" case. By periodically calling sd_journal_process() during the processing
2748 * loop we shrink the window of time a client instance has open file descriptors for rotated
2749 * (deleted) journal files. */
2750 if ((n_shown
% PROCESS_INOTIFY_INTERVAL
) == 0) {
2751 r
= sd_journal_process(j
);
2753 log_error_errno(r
, "Failed to process inotify events: %m");
2760 if (n_shown
== 0 && !arg_quiet
)
2761 printf("-- No entries --\n");
2767 r
= wait_for_change(j
, poll_fd
);
2774 if (arg_show_cursor
|| arg_cursor_file
) {
2775 _cleanup_free_
char *cursor
= NULL
;
2777 r
= sd_journal_get_cursor(j
, &cursor
);
2778 if (r
< 0 && r
!= -EADDRNOTAVAIL
)
2779 log_error_errno(r
, "Failed to get cursor: %m");
2781 if (arg_show_cursor
)
2782 printf("-- cursor: %s\n", cursor
);
2784 if (arg_cursor_file
) {
2785 r
= write_string_file(arg_cursor_file
, cursor
,
2786 WRITE_STRING_FILE_CREATE
|
2787 WRITE_STRING_FILE_ATOMIC
);
2790 "Failed to write new cursor to %s: %m",
2799 strv_free(arg_file
);
2801 set_free(arg_facilities
);
2802 strv_free(arg_syslog_identifier
);
2803 strv_free(arg_system_units
);
2804 strv_free(arg_user_units
);
2805 strv_free(arg_output_fields
);
2808 free(arg_verify_key
);
2811 if (arg_compiled_pattern
) {
2812 sym_pcre2_code_free(arg_compiled_pattern
);
2814 /* --grep was used, no error was thrown, but the pattern didn't
2815 * match anything. Let's mimic grep's behavior here and return
2816 * a non-zero exit code, so journalctl --grep can be used
2817 * in scripts and such */
2818 if (r
== 0 && n_shown
== 0)
2823 return r
< 0 ? EXIT_FAILURE
: EXIT_SUCCESS
;