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strv: make iterator in STRV_FOREACH() declaread in the loop
[thirdparty/systemd.git] / src / coredump / coredumpctl.c
CommitLineData
db9ecf05 1/* SPDX-License-Identifier: LGPL-2.1-or-later */
5de0409e 2
3f6fd1ba
LP		 3#include <fcntl.h>
4#include <getopt.h>
a9cdc94f 5#include <locale.h>
5de0409e 6#include <stdio.h>
ada45c78 7#include <unistd.h>
5de0409e 8
012f2b7d 9#include "sd-bus.h"
2cf4172a 10#include "sd-journal.h"
2b044526 11#include "sd-messages.h"
3f6fd1ba 12
b5efdb8a 13#include "alloc-util.h"
012f2b7d
ZJS		 14#include "bus-error.h"
15#include "bus-util.h"
3f6fd1ba 16#include "compress.h"
1abaf488 17#include "def.h"
3ffd4af2 18#include "fd-util.h"
0689cfdb 19#include "format-table.h"
992e8f22 20#include "fs-util.h"
aeb56450 21#include "glob-util.h"
3f6fd1ba 22#include "journal-internal.h"
b9aaa7f4 23#include "journal-util.h"
5de0409e 24#include "log.h"
763c7aa2 25#include "macro.h"
c118b577 26#include "main-func.h"
3f6fd1ba 27#include "pager.h"
b1e8f46c 28#include "parse-argument.h"
6bedfcbb 29#include "parse-util.h"
3f6fd1ba 30#include "path-util.h"
294bf0c3 31#include "pretty-print.h"
0b452006 32#include "process-util.h"
1abaf488 33#include "rlimit-util.h"
3f6fd1ba 34#include "sigbus.h"
24882e06 35#include "signal-util.h"
07630cea 36#include "string-util.h"
5ab9ed07 37#include "strv.h"
3f6fd1ba 38#include "terminal-util.h"
e4de7287 39#include "tmpfile-util.h"
b1d4f8e1 40#include "user-util.h"
6bedfcbb 41#include "util.h"
5ce97d33 42#include "verbs.h"
5de0409e 43
501551e8
LP		 44#define SHORT_BUS_CALL_TIMEOUT_USEC (3 * USEC_PER_SEC)
45
32485d09 46static usec_t arg_since = USEC_INFINITY, arg_until = USEC_INFINITY;
e15758cc 47static const char* arg_field = NULL;
c5896b6a 48static const char *arg_debugger = NULL;
a2be8be2 49static char **arg_debugger_args = NULL;
b73e9a02 50static const char *arg_directory = NULL;
aeb56450 51static char **arg_file = NULL;
0689cfdb 52static JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF;
0221d68a 53static PagerFlags arg_pager_flags = 0;
0689cfdb
LP		 54static int arg_legend = true;
55static size_t arg_rows_max = SIZE_MAX;
158ecef5 56static const char* arg_output = NULL;
df65f77b 57static bool arg_reverse = false;
b9aaa7f4 58static bool arg_quiet = false;
d888ef68 59static bool arg_all = false;
5de0409e 60
a2be8be2 61STATIC_DESTRUCTOR_REGISTER(arg_debugger_args, strv_freep);
aeb56450
FS		 62STATIC_DESTRUCTOR_REGISTER(arg_file, strv_freep);
63
5ab9ed07 64static int add_match(sd_journal *j, const char *match) {
7fd1b19b 65 _cleanup_free_ char *p = NULL;
43bfe750 66 const char* prefix, *pattern;
0f474365
LP		 67 pid_t pid;
68 int r;
5de0409e
ZJS		 69
70 if (strchr(match, '='))
71 prefix = "";
72 else if (strchr(match, '/')) {
0f474365
LP		 73 r = path_make_absolute_cwd(match, &p);
74 if (r < 0)
5ab9ed07
ZJS		 75 return log_error_errno(r, "path_make_absolute_cwd(\"%s\"): %m", match);
76
5de0409e
ZJS		 77 match = p;
78 prefix = "COREDUMP_EXE=";
0f474365 79 } else if (parse_pid(match, &pid) >= 0)
5de0409e
ZJS		 80 prefix = "COREDUMP_PID=";
81 else
82 prefix = "COREDUMP_COMM=";
83
e8fb0238 84 pattern = strjoina(prefix, match);
5ab9ed07
ZJS		 85 log_debug("Adding match: %s", pattern);
86 r = sd_journal_add_match(j, pattern, 0);
87 if (r < 0)
88 return log_error_errno(r, "Failed to add match \"%s\": %m", match);
43bfe750 89
5ab9ed07
ZJS		 90 return 0;
91}
92
5ce97d33 93static int add_matches(sd_journal *j, char **matches) {
5ab9ed07 94 int r;
5de0409e 95
2b044526 96 r = sd_journal_add_match(j, "MESSAGE_ID=" SD_MESSAGE_COREDUMP_STR, 0);
0f474365 97 if (r < 0)
2b044526 98 return log_error_errno(r, "Failed to add match \"%s\": %m", "MESSAGE_ID=" SD_MESSAGE_COREDUMP_STR);
5ab9ed07 99
a7581ff9
ZJS		 100 r = sd_journal_add_match(j, "MESSAGE_ID=" SD_MESSAGE_BACKTRACE_STR, 0);
101 if (r < 0)
102 return log_error_errno(r, "Failed to add match \"%s\": %m", "MESSAGE_ID=" SD_MESSAGE_BACKTRACE_STR);
103
5ce97d33 104 STRV_FOREACH(match, matches) {
5ab9ed07
ZJS		 105 r = add_match(j, *match);
106 if (r < 0)
107 return r;
108 }
5de0409e
ZJS		 109
110 return 0;
5de0409e
ZJS		 111}
112
5ce97d33
YW		 113static int acquire_journal(sd_journal **ret, char **matches) {
114 _cleanup_(sd_journal_closep) sd_journal *j = NULL;
115 int r;
116
117 assert(ret);
118
119 if (arg_directory) {
120 r = sd_journal_open_directory(&j, arg_directory, 0);
121 if (r < 0)
122 return log_error_errno(r, "Failed to open journals in directory: %s: %m", arg_directory);
aeb56450
FS		 123 } else if (arg_file) {
124 r = sd_journal_open_files(&j, (const char**)arg_file, 0);
125 if (r < 0)
126 return log_error_errno(r, "Failed to open journal files: %m");
5ce97d33 127 } else {
d888ef68 128 r = sd_journal_open(&j, arg_all ? 0 : SD_JOURNAL_LOCAL_ONLY);
5ce97d33
YW		 129 if (r < 0)
130 return log_error_errno(r, "Failed to open journal: %m");
131 }
132
133 r = journal_access_check_and_warn(j, arg_quiet, true);
134 if (r < 0)
135 return r;
136
137 r = add_matches(j, matches);
138 if (r < 0)
139 return r;
140
141 if (DEBUG_LOGGING) {
c2b2df60 142 _cleanup_free_ char *filter = NULL;
5ce97d33
YW		 143
144 filter = journal_make_match_string(j);
145 log_debug("Journal filter: %s", filter);
146 }
147
1cc6c93a 148 *ret = TAKE_PTR(j);
5ce97d33
YW		 149
150 return 0;
151}
152
6d8be376 153static int verb_help(int argc, char **argv, void *userdata) {
37ec0fdd
LP		 154 _cleanup_free_ char *link = NULL;
155 int r;
156
157 r = terminal_urlify_man("coredumpctl", "1", &link);
158 if (r < 0)
159 return log_oom();
160
0689cfdb
LP		 161 printf("%1$s [OPTIONS...] COMMAND ...\n\n"
162 "%5$sList or retrieve coredumps from the journal.%6$s\n"
163 "\n%3$sCommands:%4$s\n"
e1fac8a6
ZJS		 164 " list [MATCHES...] List available coredumps (default)\n"
165 " info [MATCHES...] Show detailed information about one or more coredumps\n"
166 " dump [MATCHES...] Print first matching coredump to stdout\n"
167 " debug [MATCHES...] Start a debugger for the first matching coredump\n"
0689cfdb 168 "\n%3$sOptions:%4$s\n"
a2be8be2
MF		 169 " -h --help Show this help\n"
170 " --version Print version string\n"
171 " --no-pager Do not pipe output into a pager\n"
172 " --no-legend Do not print the column headers\n"
0689cfdb
LP		 173 " --json=pretty|short|off\n"
174 " Generate JSON output\n"
a2be8be2
MF		 175 " --debugger=DEBUGGER Use the given debugger\n"
176 " -A --debugger-arguments=ARGS Pass the given arguments to the debugger\n"
0689cfdb 177 " -n INT Show maximum number of rows\n"
a2be8be2
MF		 178 " -1 Show information about most recent entry only\n"
179 " -S --since=DATE Only print coredumps since the date\n"
180 " -U --until=DATE Only print coredumps until the date\n"
181 " -r --reverse Show the newest entries first\n"
182 " -F --field=FIELD List all values a certain field takes\n"
183 " -o --output=FILE Write output to FILE\n"
184 " --file=PATH Use journal file\n"
185 " -D --directory=DIR Use journal files from directory\n\n"
186 " -q --quiet Do not show info messages and privilege warning\n"
d888ef68 187 " --all Look at all journal files instead of local ones\n"
0689cfdb 188 "\nSee the %2$s for details.\n",
bc556335 189 program_invocation_short_name,
0689cfdb
LP		 190 link,
191 ansi_underline(),
bc556335 192 ansi_normal(),
0689cfdb
LP		 193 ansi_highlight(),
194 ansi_normal());
5ce97d33
YW		 195
196 return 0;
601185b4
ZJS		 197}
198
5ab9ed07 199static int parse_argv(int argc, char *argv[]) {
5de0409e
ZJS		 200 enum {
201 ARG_VERSION = 0x100,
202 ARG_NO_PAGER,
9a340880 203 ARG_NO_LEGEND,
0689cfdb 204 ARG_JSON,
c5896b6a 205 ARG_DEBUGGER,
aeb56450 206 ARG_FILE,
d888ef68 207 ARG_ALL,
5de0409e
ZJS		 208 };
209
32485d09 210 int c, r;
5de0409e
ZJS		 211
212 static const struct option options[] = {
a2be8be2
MF		 213 { "help", no_argument, NULL, 'h' },
214 { "version" , no_argument, NULL, ARG_VERSION },
215 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
216 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
217 { "debugger", required_argument, NULL, ARG_DEBUGGER },
218 { "debugger-arguments", required_argument, NULL, 'A' },
219 { "output", required_argument, NULL, 'o' },
220 { "field", required_argument, NULL, 'F' },
221 { "file", required_argument, NULL, ARG_FILE },
222 { "directory", required_argument, NULL, 'D' },
223 { "reverse", no_argument, NULL, 'r' },
224 { "since", required_argument, NULL, 'S' },
225 { "until", required_argument, NULL, 'U' },
226 { "quiet", no_argument, NULL, 'q' },
0689cfdb 227 { "json", required_argument, NULL, ARG_JSON },
d888ef68 228 { "all", no_argument, NULL, ARG_ALL },
eb9da376 229 {}
5de0409e
ZJS		 230 };
231
232 assert(argc >= 0);
233 assert(argv);
234
0689cfdb 235 while ((c = getopt_long(argc, argv, "hA:o:F:1D:rS:U:qn:", options, NULL)) >= 0)
5de0409e
ZJS		 236 switch(c) {
237 case 'h':
6d8be376 238 return verb_help(0, NULL, NULL);
5de0409e
ZJS		 239
240 case ARG_VERSION:
3f6fd1ba 241 return version();
5de0409e
ZJS		 242
243 case ARG_NO_PAGER:
0221d68a 244 arg_pager_flags |= PAGER_DISABLE;
5de0409e
ZJS		 245 break;
246
9a340880 247 case ARG_NO_LEGEND:
0689cfdb 248 arg_legend = false;
9a340880
ZJS		 249 break;
250
c5896b6a
RG		 251 case ARG_DEBUGGER:
252 arg_debugger = optarg;
253 break;
254
a2be8be2
MF		 255 case 'A': {
256 _cleanup_strv_free_ char **l = NULL;
257 r = strv_split_full(&l, optarg, WHITESPACE, EXTRACT_UNQUOTE);
258 if (r < 0)
259 return log_error_errno(r, "Failed to parse debugger arguments '%s': %m", optarg);
260 strv_free_and_replace(arg_debugger_args, l);
261 break;
262 }
263
aeb56450 264 case ARG_FILE:
544e146b 265 r = glob_extend(&arg_file, optarg, GLOB_NOCHECK);
aeb56450
FS		 266 if (r < 0)
267 return log_error_errno(r, "Failed to add paths: %m");
268 break;
269
5de0409e 270 case 'o':
baaa35ad
ZJS		 271 if (arg_output)
272 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
273 "Cannot set output more than once.");
5de0409e 274
158ecef5 275 arg_output = optarg;
5de0409e 276 break;
57ce4bd4 277
32485d09
GS		 278 case 'S':
279 r = parse_timestamp(optarg, &arg_since);
280 if (r < 0)
9d77ca39 281 return log_error_errno(r, "Failed to parse timestamp '%s': %m", optarg);
32485d09
GS		 282 break;
283
284 case 'U':
285 r = parse_timestamp(optarg, &arg_until);
286 if (r < 0)
9d77ca39 287 return log_error_errno(r, "Failed to parse timestamp '%s': %m", optarg);
32485d09
GS		 288 break;
289
4f76ae1b 290 case 'F':
baaa35ad
ZJS		 291 if (arg_field)
292 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
293 "Cannot use --field/-F more than once.");
a276ae74 294 arg_field = optarg;
4f76ae1b
ZJS		 295 break;
296
0c51aada 297 case '1':
0689cfdb
LP		 298 arg_rows_max = 1;
299 arg_reverse = true;
0c51aada
LP		 300 break;
301
0689cfdb
LP		 302 case 'n': {
303 unsigned n;
304
305 r = safe_atou(optarg, &n);
306 if (r < 0 || n < 1)
307 return log_error_errno(r < 0 ? r : SYNTHETIC_ERRNO(EINVAL),
308 "Invalid numeric parameter to -n: %s", optarg);
309
310 arg_rows_max = n;
311 break;
312 }
313
b73e9a02
SW		 314 case 'D':
315 arg_directory = optarg;
316 break;
317
df65f77b
NK		 318 case 'r':
319 arg_reverse = true;
320 break;
321
b9aaa7f4
ZJS		 322 case 'q':
323 arg_quiet = true;
324 break;
325
0689cfdb 326 case ARG_JSON:
b1e8f46c 327 r = parse_json_argument(optarg, &arg_json_format_flags);
0689cfdb
LP		 328 if (r <= 0)
329 return r;
330
331 break;
332
d888ef68
DDM		 333 case ARG_ALL:
334 arg_all = true;
335 break;
336
57ce4bd4
ZJS		 337 case '?':
338 return -EINVAL;
339
5de0409e 340 default:
04499a70 341 assert_not_reached();
5de0409e
ZJS		 342 }
343
32485d09 344 if (arg_since != USEC_INFINITY && arg_until != USEC_INFINITY &&
baaa35ad
ZJS		 345 arg_since > arg_until)
346 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
347 "--since= must be before --until=.");
32485d09 348
5ce97d33 349 return 1;
5de0409e
ZJS		 350}
351
8bc8ab83
LP		 352static int retrieve(const void *data,
353 size_t len,
354 const char *name,
a276ae74 355 char **var) {
5de0409e 356
4f76ae1b 357 size_t ident;
a276ae74 358 char *v;
8bc8ab83 359
4f76ae1b 360 ident = strlen(name) + 1; /* name + "=" */
8bc8ab83 361
4f76ae1b 362 if (len < ident)
8bc8ab83 363 return 0;
5de0409e 364
4f76ae1b 365 if (memcmp(data, name, ident - 1) != 0)
8bc8ab83
LP		 366 return 0;
367
4f76ae1b 368 if (((const char*) data)[ident - 1] != '=')
8bc8ab83 369 return 0;
5de0409e 370
a276ae74
LP		 371 v = strndup((const char*)data + ident, len - ident);
372 if (!v)
5de0409e
ZJS		 373 return log_oom();
374
eba048bb 375 free_and_replace(*var, v);
062b99e8 376 return 1;
5de0409e
ZJS		 377}
378
062b99e8 379static int print_field(FILE* file, sd_journal *j) {
4f76ae1b
ZJS		 380 const void *d;
381 size_t l;
382
e15758cc
LP		 383 assert(file);
384 assert(j);
385
a276ae74 386 assert(arg_field);
4f76ae1b 387
062b99e8 388 /* A (user-specified) field may appear more than once for a given entry.
5238e957 389 * We will print all of the occurrences.
062b99e8
ZJS		 390 * This is different below for fields that systemd-coredump uses,
391 * because they cannot meaningfully appear more than once.
392 */
393 SD_JOURNAL_FOREACH_DATA(j, d, l) {
394 _cleanup_free_ char *value = NULL;
395 int r;
396
397 r = retrieve(d, l, arg_field, &value);
398 if (r < 0)
399 return r;
400 if (r > 0)
401 fprintf(file, "%s\n", value);
402 }
a276ae74 403
062b99e8 404 return 0;
4f76ae1b
ZJS		 405}
406
062b99e8
ZJS		 407#define RETRIEVE(d, l, name, arg) \
408 { \
409 int _r = retrieve(d, l, name, &arg); \
410 if (_r < 0) \
411 return _r; \
412 if (_r > 0) \
413 continue; \
414 }
415
4016281c
LP		 416static void analyze_coredump_file(
417 const char *path,
418 const char **ret_state,
419 const char **ret_color,
420 uint64_t *ret_size) {
421
422 _cleanup_close_ int fd = -1;
423 struct stat st;
424 int r;
425
426 assert(path);
427 assert(ret_state);
428 assert(ret_color);
429 assert(ret_size);
430
431 fd = open(path, O_PATH|O_CLOEXEC);
432 if (fd < 0) {
433 if (errno == ENOENT) {
434 *ret_state = "missing";
435 *ret_color = ansi_grey();
436 *ret_size = UINT64_MAX;
437 return;
438 }
439
440 r = -errno;
441 } else
442 r = access_fd(fd, R_OK);
443 if (ERRNO_IS_PRIVILEGE(r)) {
444 *ret_state = "inaccessible";
445 *ret_color = ansi_highlight_yellow();
446 *ret_size = UINT64_MAX;
447 return;
448 }
449 if (r < 0)
450 goto error;
451
452 if (fstat(fd, &st) < 0)
453 goto error;
454
455 if (!S_ISREG(st.st_mode))
456 goto error;
457
458 *ret_state = "present";
459 *ret_color = NULL;
460 *ret_size = st.st_size;
461 return;
462
463error:
464 *ret_state = "error";
465 *ret_color = ansi_highlight_red();
466 *ret_size = UINT64_MAX;
467}
468
0689cfdb 469static int print_list(FILE* file, sd_journal *j, Table *t) {
a276ae74 470 _cleanup_free_ char
a7581ff9 471 *mid = NULL, *pid = NULL, *uid = NULL, *gid = NULL,
9fe13294 472 *sgnl = NULL, *exe = NULL, *comm = NULL, *cmdline = NULL,
cc4419ed 473 *filename = NULL, *truncated = NULL, *coredump = NULL;
8bc8ab83
LP		 474 const void *d;
475 size_t l;
0689cfdb
LP		 476 usec_t ts;
477 int r, signal_as_int = 0;
4016281c
LP		 478 const char *present = NULL, *color = NULL;
479 uint64_t size = UINT64_MAX;
a7581ff9 480 bool normal_coredump;
0689cfdb
LP		 481 uid_t uid_as_int = UID_INVALID;
482 gid_t gid_as_int = GID_INVALID;
483 pid_t pid_as_int = 0;
8bc8ab83 484
e15758cc
LP		 485 assert(file);
486 assert(j);
0689cfdb 487 assert(t);
e15758cc 488
8bc8ab83 489 SD_JOURNAL_FOREACH_DATA(j, d, l) {
a7581ff9 490 RETRIEVE(d, l, "MESSAGE_ID", mid);
062b99e8
ZJS		 491 RETRIEVE(d, l, "COREDUMP_PID", pid);
492 RETRIEVE(d, l, "COREDUMP_UID", uid);
493 RETRIEVE(d, l, "COREDUMP_GID", gid);
494 RETRIEVE(d, l, "COREDUMP_SIGNAL", sgnl);
495 RETRIEVE(d, l, "COREDUMP_EXE", exe);
496 RETRIEVE(d, l, "COREDUMP_COMM", comm);
497 RETRIEVE(d, l, "COREDUMP_CMDLINE", cmdline);
498 RETRIEVE(d, l, "COREDUMP_FILENAME", filename);
cc4419ed 499 RETRIEVE(d, l, "COREDUMP_TRUNCATED", truncated);
062b99e8 500 RETRIEVE(d, l, "COREDUMP", coredump);
8bc8ab83 501 }
5de0409e 502
0689cfdb
LP		 503 if (!pid && !uid && !gid && !sgnl && !exe && !comm && !cmdline && !filename)
504 return log_warning_errno(SYNTHETIC_ERRNO(EINVAL), "Empty coredump log entry");
684341b0 505
0689cfdb
LP		 506 (void) parse_uid(uid, &uid_as_int);
507 (void) parse_gid(gid, &gid_as_int);
508 (void) parse_pid(pid, &pid_as_int);
509 signal_as_int = signal_from_string(sgnl);
510
511 r = sd_journal_get_realtime_usec(j, &ts);
23bbb0de
MS		 512 if (r < 0)
513 return log_error_errno(r, "Failed to get realtime timestamp: %m");
5de0409e 514
a7581ff9
ZJS		 515 normal_coredump = streq_ptr(mid, SD_MESSAGE_COREDUMP_STR);
516
04de5879 517 if (filename)
4016281c 518 analyze_coredump_file(filename, &present, &color, &size);
04de5879
ZJS		 519 else if (coredump)
520 present = "journal";
0689cfdb 521 else if (normal_coredump) {
04de5879 522 present = "none";
0689cfdb
LP		 523 color = ansi_grey();
524 } else
525 present = NULL;
04de5879 526
0689cfdb 527 if (STRPTR_IN_SET(present, "present", "journal") && truncated && parse_boolean(truncated) > 0)
cc4419ed
ZJS		 528 present = "truncated";
529
0689cfdb
LP		 530 r = table_add_many(
531 t,
532 TABLE_TIMESTAMP, ts,
533 TABLE_PID, pid_as_int,
534 TABLE_UID, uid_as_int,
535 TABLE_GID, gid_as_int,
536 TABLE_SIGNAL, normal_coredump ? signal_as_int : 0,
537 TABLE_STRING, present,
538 TABLE_SET_COLOR, color,
4016281c
LP		 539 TABLE_STRING, exe ?: comm ?: cmdline,
540 TABLE_SIZE, size);
0689cfdb
LP		 541 if (r < 0)
542 return table_log_add_error(r);
684341b0
LP		 543
544 return 0;
5de0409e
ZJS		 545}
546
e15758cc
LP		 547static int print_info(FILE *file, sd_journal *j, bool need_space) {
548 _cleanup_free_ char
a7581ff9 549 *mid = NULL, *pid = NULL, *uid = NULL, *gid = NULL,
e15758cc
LP		 550 *sgnl = NULL, *exe = NULL, *comm = NULL, *cmdline = NULL,
551 *unit = NULL, *user_unit = NULL, *session = NULL,
a035f819 552 *boot_id = NULL, *machine_id = NULL, *hostname = NULL,
9fe13294 553 *slice = NULL, *cgroup = NULL, *owner_uid = NULL,
47f50642 554 *message = NULL, *timestamp = NULL, *filename = NULL,
d1b5a0c6
LB		 555 *truncated = NULL, *coredump = NULL,
556 *pkgmeta_name = NULL, *pkgmeta_version = NULL, *pkgmeta_json = NULL;
e15758cc
LP		 557 const void *d;
558 size_t l;
a7581ff9 559 bool normal_coredump;
4b8cbe9a 560 int r;
e15758cc
LP		 561
562 assert(file);
563 assert(j);
564
384c6207
ZJS		 565 (void) sd_journal_set_data_threshold(j, 0);
566
e15758cc 567 SD_JOURNAL_FOREACH_DATA(j, d, l) {
a7581ff9 568 RETRIEVE(d, l, "MESSAGE_ID", mid);
062b99e8
ZJS		 569 RETRIEVE(d, l, "COREDUMP_PID", pid);
570 RETRIEVE(d, l, "COREDUMP_UID", uid);
571 RETRIEVE(d, l, "COREDUMP_GID", gid);
572 RETRIEVE(d, l, "COREDUMP_SIGNAL", sgnl);
573 RETRIEVE(d, l, "COREDUMP_EXE", exe);
574 RETRIEVE(d, l, "COREDUMP_COMM", comm);
575 RETRIEVE(d, l, "COREDUMP_CMDLINE", cmdline);
07461598 576 RETRIEVE(d, l, "COREDUMP_HOSTNAME", hostname);
062b99e8
ZJS		 577 RETRIEVE(d, l, "COREDUMP_UNIT", unit);
578 RETRIEVE(d, l, "COREDUMP_USER_UNIT", user_unit);
579 RETRIEVE(d, l, "COREDUMP_SESSION", session);
580 RETRIEVE(d, l, "COREDUMP_OWNER_UID", owner_uid);
581 RETRIEVE(d, l, "COREDUMP_SLICE", slice);
582 RETRIEVE(d, l, "COREDUMP_CGROUP", cgroup);
583 RETRIEVE(d, l, "COREDUMP_TIMESTAMP", timestamp);
584 RETRIEVE(d, l, "COREDUMP_FILENAME", filename);
cc4419ed 585 RETRIEVE(d, l, "COREDUMP_TRUNCATED", truncated);
062b99e8 586 RETRIEVE(d, l, "COREDUMP", coredump);
671769c9
LB		 587 RETRIEVE(d, l, "COREDUMP_PACKAGE_NAME", pkgmeta_name);
588 RETRIEVE(d, l, "COREDUMP_PACKAGE_VERSION", pkgmeta_version);
589 RETRIEVE(d, l, "COREDUMP_PACKAGE_JSON", pkgmeta_json);
062b99e8
ZJS		 590 RETRIEVE(d, l, "_BOOT_ID", boot_id);
591 RETRIEVE(d, l, "_MACHINE_ID", machine_id);
062b99e8 592 RETRIEVE(d, l, "MESSAGE", message);
e15758cc
LP		 593 }
594
595 if (need_space)
596 fputs("\n", file);
597
a7581ff9
ZJS		 598 normal_coredump = streq_ptr(mid, SD_MESSAGE_COREDUMP_STR);
599
81cef14f
LP		 600 if (comm)
601 fprintf(file,
602 " PID: %s%s%s (%s)\n",
1fc464f6 603 ansi_highlight(), strna(pid), ansi_normal(), comm);
81cef14f
LP		 604 else
605 fprintf(file,
606 " PID: %s%s%s\n",
1fc464f6 607 ansi_highlight(), strna(pid), ansi_normal());
a035f819
LP		 608
609 if (uid) {
610 uid_t n;
611
612 if (parse_uid(uid, &n) >= 0) {
613 _cleanup_free_ char *u = NULL;
614
615 u = uid_to_name(n);
616 fprintf(file,
617 " UID: %s (%s)\n",
618 uid, u);
619 } else {
620 fprintf(file,
621 " UID: %s\n",
622 uid);
623 }
624 }
625
626 if (gid) {
627 gid_t n;
628
629 if (parse_gid(gid, &n) >= 0) {
630 _cleanup_free_ char *g = NULL;
631
632 g = gid_to_name(n);
633 fprintf(file,
634 " GID: %s (%s)\n",
635 gid, g);
636 } else {
637 fprintf(file,
638 " GID: %s\n",
639 gid);
640 }
641 }
e15758cc
LP		 642
643 if (sgnl) {
644 int sig;
a7581ff9 645 const char *name = normal_coredump ? "Signal" : "Reason";
e15758cc 646
a7581ff9
ZJS		 647 if (normal_coredump && safe_atoi(sgnl, &sig) >= 0)
648 fprintf(file, " %s: %s (%s)\n", name, sgnl, signal_to_string(sig));
e15758cc 649 else
a7581ff9 650 fprintf(file, " %s: %s\n", name, sgnl);
e15758cc
LP		 651 }
652
4b8cbe9a
LP		 653 if (timestamp) {
654 usec_t u;
655
656 r = safe_atou64(timestamp, &u);
32fc5c47
ZJS		 657 if (r >= 0)
658 fprintf(file, " Timestamp: %s (%s)\n",
659 FORMAT_TIMESTAMP(u), FORMAT_TIMESTAMP_RELATIVE(u));
4b8cbe9a 660
32fc5c47 661 else
4b8cbe9a
LP		 662 fprintf(file, " Timestamp: %s\n", timestamp);
663 }
664
e15758cc
LP		 665 if (cmdline)
666 fprintf(file, " Command Line: %s\n", cmdline);
81cef14f 667 if (exe)
1fc464f6 668 fprintf(file, " Executable: %s%s%s\n", ansi_highlight(), exe, ansi_normal());
a035f819
LP		 669 if (cgroup)
670 fprintf(file, " Control Group: %s\n", cgroup);
e15758cc
LP		 671 if (unit)
672 fprintf(file, " Unit: %s\n", unit);
673 if (user_unit)
554ed50f 674 fprintf(file, " User Unit: %s\n", user_unit);
a035f819
LP		 675 if (slice)
676 fprintf(file, " Slice: %s\n", slice);
e15758cc
LP		 677 if (session)
678 fprintf(file, " Session: %s\n", session);
a035f819
LP		 679 if (owner_uid) {
680 uid_t n;
681
682 if (parse_uid(owner_uid, &n) >= 0) {
683 _cleanup_free_ char *u = NULL;
684
685 u = uid_to_name(n);
686 fprintf(file,
687 " Owner UID: %s (%s)\n",
688 owner_uid, u);
689 } else {
690 fprintf(file,
691 " Owner UID: %s\n",
692 owner_uid);
693 }
694 }
e15758cc
LP		 695 if (boot_id)
696 fprintf(file, " Boot ID: %s\n", boot_id);
697 if (machine_id)
698 fprintf(file, " Machine ID: %s\n", machine_id);
699 if (hostname)
700 fprintf(file, " Hostname: %s\n", hostname);
701
cc4419ed 702 if (filename) {
4016281c
LP		 703 const char *state = NULL, *color = NULL;
704 uint64_t size = UINT64_MAX;
cc4419ed 705
4016281c
LP		 706 analyze_coredump_file(filename, &state, &color, &size);
707
708 if (STRPTR_IN_SET(state, "present", "journal") && truncated && parse_boolean(truncated) > 0)
709 state = "truncated";
710
711 fprintf(file,
712 " Storage: %s%s (%s)%s\n",
713 strempty(color),
714 filename,
715 state,
716 ansi_normal());
717
718 if (size != UINT64_MAX)
2b59bf51
ZJS		 719 fprintf(file, " Disk Size: %s\n", FORMAT_BYTES(size));
720
4016281c 721 } else if (coredump)
47f50642
ZJS		 722 fprintf(file, " Storage: journal\n");
723 else
724 fprintf(file, " Storage: none\n");
e15758cc 725
d1b5a0c6
LB		 726 if (pkgmeta_name && pkgmeta_version)
727 fprintf(file, " Package: %s/%s\n", pkgmeta_name, pkgmeta_version);
728
729 /* Print out the build-id of the 'main' ELF module, by matching the JSON key
730 * with the 'exe' field. */
731 if (exe && pkgmeta_json) {
732 _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
733
734 r = json_parse(pkgmeta_json, 0, &v, NULL, NULL);
9b7205f5 735 if (r < 0)
d1b5a0c6 736 log_warning_errno(r, "json_parse on %s failed, ignoring: %m", pkgmeta_json);
9b7205f5 737 else {
d1b5a0c6
LB		 738 const char *module_name;
739 JsonVariant *module_json;
740
b7ddd444 741 JSON_VARIANT_OBJECT_FOREACH(module_name, module_json, v) {
b7ddd444 742 JsonVariant *build_id;
d1b5a0c6 743
d1b5a0c6 744 /* We only print the build-id for the 'main' ELF module */
289784a7 745 if (!path_equal_filename(module_name, exe))
d1b5a0c6
LB		 746 continue;
747
b7ddd444
LB		 748 build_id = json_variant_by_key(module_json, "buildId");
749 if (build_id)
750 fprintf(file, " build-id: %s\n", json_variant_string(build_id));
d1b5a0c6
LB		 751
752 break;
753 }
754 }
755 }
756
8d4e028f
LP		 757 if (message) {
758 _cleanup_free_ char *m = NULL;
759
760 m = strreplace(message, "\n", "\n ");
761
762 fprintf(file, " Message: %s\n", strstrip(m ?: message));
763 }
764
e15758cc
LP		 765 return 0;
766}
767
ada45c78 768static int focus(sd_journal *j) {
5de0409e
ZJS		 769 int r;
770
5de0409e
ZJS		 771 r = sd_journal_seek_tail(j);
772 if (r == 0)
773 r = sd_journal_previous(j);
23bbb0de
MS		 774 if (r < 0)
775 return log_error_errno(r, "Failed to search journal: %m");
baaa35ad
ZJS		 776 if (r == 0)
777 return log_error_errno(SYNTHETIC_ERRNO(ESRCH),
778 "No match found.");
ada45c78
LP		 779 return r;
780}
5de0409e 781
0689cfdb
LP		 782static int print_entry(
783 sd_journal *j,
784 size_t n_found,
785 Table *t) {
786
0c51aada
LP		 787 assert(j);
788
0689cfdb
LP		 789 if (t)
790 return print_list(stdout, j, t);
0c51aada 791 else if (arg_field)
062b99e8 792 return print_field(stdout, j);
0c51aada 793 else
0689cfdb 794 return print_info(stdout, j, n_found > 0);
0c51aada
LP		 795}
796
5ce97d33
YW		 797static int dump_list(int argc, char **argv, void *userdata) {
798 _cleanup_(sd_journal_closep) sd_journal *j = NULL;
0689cfdb
LP		 799 _cleanup_(table_unrefp) Table *t = NULL;
800 size_t n_found = 0;
5ce97d33 801 bool verb_is_info;
0c51aada
LP		 802 int r;
803
0689cfdb 804 verb_is_info = argc >= 1 && streq(argv[0], "info");
5ce97d33
YW		 805
806 r = acquire_journal(&j, argv + 1);
807 if (r < 0)
808 return r;
809
0689cfdb
LP		 810 /* The coredumps are likely compressed, and for just listing them we don't need to decompress them,
811 * so let's pick a fairly low data threshold here */
812 (void) sd_journal_set_data_threshold(j, 4096);
0c51aada 813
0689cfdb 814 if (!verb_is_info && !arg_field) {
4016281c 815 t = table_new("time", "pid", "uid", "gid", "sig", "corefile", "exe", "size");
0689cfdb
LP		 816 if (!t)
817 return log_oom();
818
819 (void) table_set_align_percent(t, TABLE_HEADER_CELL(1), 100);
820 (void) table_set_align_percent(t, TABLE_HEADER_CELL(2), 100);
821 (void) table_set_align_percent(t, TABLE_HEADER_CELL(3), 100);
4016281c 822 (void) table_set_align_percent(t, TABLE_HEADER_CELL(7), 100);
0689cfdb
LP		 823
824 (void) table_set_empty_string(t, "-");
825 } else
384c2c32 826 pager_open(arg_pager_flags);
0c51aada 827
2fafabfd 828 /* "info" without pattern implies "-1" */
0689cfdb 829 if ((arg_rows_max == 1 && arg_reverse) || (verb_is_info && argc == 1)) {
0c51aada
LP		 830 r = focus(j);
831 if (r < 0)
832 return r;
833
0689cfdb
LP		 834 r = print_entry(j, 0, t);
835 if (r < 0)
836 return r;
0c51aada 837 } else {
32485d09
GS		 838 if (arg_since != USEC_INFINITY && !arg_reverse)
839 r = sd_journal_seek_realtime_usec(j, arg_since);
840 else if (arg_until != USEC_INFINITY && arg_reverse)
841 r = sd_journal_seek_realtime_usec(j, arg_until);
842 else if (arg_reverse)
843 r = sd_journal_seek_tail(j);
844 else
845 r = sd_journal_seek_head(j);
846 if (r < 0)
847 return log_error_errno(r, "Failed to seek to date: %m");
848
849 for (;;) {
850 if (!arg_reverse)
851 r = sd_journal_next(j);
852 else
853 r = sd_journal_previous(j);
32485d09
GS		 854 if (r < 0)
855 return log_error_errno(r, "Failed to iterate through journal: %m");
32485d09
GS		 856 if (r == 0)
857 break;
858
859 if (arg_until != USEC_INFINITY && !arg_reverse) {
860 usec_t usec;
861
862 r = sd_journal_get_realtime_usec(j, &usec);
df65f77b 863 if (r < 0)
32485d09
GS		 864 return log_error_errno(r, "Failed to determine timestamp: %m");
865 if (usec > arg_until)
866 continue;
df65f77b 867 }
32485d09
GS		 868
869 if (arg_since != USEC_INFINITY && arg_reverse) {
870 usec_t usec;
871
872 r = sd_journal_get_realtime_usec(j, &usec);
df65f77b 873 if (r < 0)
32485d09
GS		 874 return log_error_errno(r, "Failed to determine timestamp: %m");
875 if (usec < arg_since)
876 continue;
df65f77b 877 }
32485d09 878
0689cfdb 879 r = print_entry(j, n_found++, t);
32485d09
GS		 880 if (r < 0)
881 return r;
0689cfdb
LP		 882
883 if (arg_rows_max != SIZE_MAX && n_found >= arg_rows_max)
884 break;
062b99e8 885 }
0c51aada
LP		 886
887 if (!arg_field && n_found <= 0) {
b9aaa7f4
ZJS		 888 if (!arg_quiet)
889 log_notice("No coredumps found.");
0c51aada
LP		 890 return -ESRCH;
891 }
892 }
893
0689cfdb
LP		 894 if (t) {
895 r = table_print_with_pager(t, arg_json_format_flags, arg_pager_flags, arg_legend);
896 if (r < 0)
897 return r;
898 }
899
0c51aada
LP		 900 return 0;
901}
902
bb7c5bad 903static int save_core(sd_journal *j, FILE *file, char **path, bool *unlink_temp) {
9fe13294
ZJS		 904 const char *data;
905 _cleanup_free_ char *filename = NULL;
906 size_t len;
bb7c5bad 907 int r, fd;
fc6cec86
ZJS		 908 _cleanup_close_ int fdt = -1;
909 char *temp = NULL;
ada45c78 910
bb7c5bad
ZJS		 911 assert(!(file && path)); /* At most one can be specified */
912 assert(!!path == !!unlink_temp); /* Those must be specified together */
47f50642 913
fc6cec86 914 /* Look for a coredump on disk first. */
9fe13294 915 r = sd_journal_get_data(j, "COREDUMP_FILENAME", (const void**) &data, &len);
2d0a880f
ZJS		 916 if (r == 0) {
917 r = retrieve(data, len, "COREDUMP_FILENAME", &filename);
918 if (r < 0)
919 return r;
920 assert(r > 0);
921
922 if (access(filename, R_OK) < 0)
923 return log_error_errno(errno, "File \"%s\" is not readable: %m", filename);
924
ef5924aa 925 if (path && !ENDSWITH_SET(filename, ".xz", ".lz4", ".zst")) {
2d0a880f
ZJS		 926 *path = TAKE_PTR(filename);
927
928 return 0;
929 }
930
931 } else {
bb7c5bad
ZJS		 932 if (r != -ENOENT)
933 return log_error_errno(r, "Failed to retrieve COREDUMP_FILENAME field: %m");
934 /* Check that we can have a COREDUMP field. We still haven't set a high
935 * data threshold, so we'll get a few kilobytes at most.
936 */
937
938 r = sd_journal_get_data(j, "COREDUMP", (const void**) &data, &len);
939 if (r == -ENOENT)
940 return log_error_errno(r, "Coredump entry has no core attached (neither internally in the journal nor externally on disk).");
941 if (r < 0)
942 return log_error_errno(r, "Failed to retrieve COREDUMP field: %m");
943 }
93b73b06 944
bb7c5bad 945 if (path) {
fc6cec86 946 const char *vt;
992e8f22 947
fc6cec86 948 /* Create a temporary file to write the uncompressed core to. */
992e8f22 949
fc6cec86
ZJS		 950 r = var_tmp_dir(&vt);
951 if (r < 0)
952 return log_error_errno(r, "Failed to acquire temporary directory path: %m");
9fe13294 953
657ee2d8 954 temp = path_join(vt, "coredump-XXXXXX");
fc6cec86
ZJS		 955 if (!temp)
956 return log_oom();
9fe13294 957
fc6cec86
ZJS		 958 fdt = mkostemp_safe(temp);
959 if (fdt < 0)
960 return log_error_errno(fdt, "Failed to create temporary file: %m");
961 log_debug("Created temporary file %s", temp);
9fe13294 962
fc6cec86 963 fd = fdt;
bb7c5bad
ZJS		 964 } else {
965 /* If neither path or file are specified, we will write to stdout. Let's now check
966 * if stdout is connected to a tty. We checked that the file exists, or that the
967 * core might be stored in the journal. In this second case, if we found the entry,
5238e957 968 * in all likelihood we will be able to access the COREDUMP= field. In either case,
bb7c5bad
ZJS		 969 * we stop before doing any "real" work, i.e. before starting decompression or
970 * reading from the file or creating temporary files.
971 */
972 if (!file) {
973 if (on_tty())
886cf317
ZJS		 974 return log_error_errno(SYNTHETIC_ERRNO(ENOTTY),
975 "Refusing to dump core to tty"
bb7c5bad
ZJS		 976 " (use shell redirection or specify --output).");
977 file = stdout;
978 }
979
980 fd = fileno(file);
fc6cec86
ZJS		 981 }
982
983 if (filename) {
d80b051c 984#if HAVE_COMPRESSION
c2b2df60 985 _cleanup_close_ int fdf = -1;
9fe13294 986
fc6cec86
ZJS		 987 fdf = open(filename, O_RDONLY | O_CLOEXEC);
988 if (fdf < 0) {
989 r = log_error_errno(errno, "Failed to open %s: %m", filename);
2fb8159f 990 goto error;
fc6cec86
ZJS		 991 }
992
993 r = decompress_stream(filename, fdf, fd, -1);
994 if (r < 0) {
995 log_error_errno(r, "Failed to decompress %s: %m", filename);
9fe13294
ZJS		 996 goto error;
997 }
fc6cec86 998#else
3afe5c00
LP		 999 r = log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
1000 "Cannot decompress file. Compiled without compression support.");
fc6cec86
ZJS		 1001 goto error;
1002#endif
1003 } else {
1004 ssize_t sz;
a276ae74 1005
bb7c5bad
ZJS		 1006 /* We want full data, nothing truncated. */
1007 sd_journal_set_data_threshold(j, 0);
1008
fc6cec86
ZJS		 1009 r = sd_journal_get_data(j, "COREDUMP", (const void**) &data, &len);
1010 if (r < 0)
bb7c5bad 1011 return log_error_errno(r, "Failed to retrieve COREDUMP field: %m");
fc6cec86
ZJS		 1012
1013 assert(len >= 9);
1014 data += 9;
1015 len -= 9;
1016
954d3a51 1017 sz = write(fd, data, len);
fc6cec86 1018 if (sz < 0) {
954d3a51 1019 r = log_error_errno(errno, "Failed to write output: %m");
fc6cec86 1020 goto error;
a276ae74 1021 }
fc6cec86 1022 if (sz != (ssize_t) len) {
954d3a51 1023 log_error("Short write to output.");
fc6cec86
ZJS		 1024 r = -EIO;
1025 goto error;
1026 }
1027 }
a276ae74 1028
fc6cec86
ZJS		 1029 if (temp) {
1030 *path = temp;
1031 *unlink_temp = true;
1032 }
1033 return 0;
9fe13294
ZJS		 1034
1035error:
fc6cec86 1036 if (temp) {
6990fb6b 1037 (void) unlink(temp);
fc6cec86 1038 log_debug("Removed temporary file %s", temp);
9fe13294 1039 }
fc6cec86 1040 return r;
9fe13294 1041}
a276ae74 1042
5ce97d33
YW		 1043static int dump_core(int argc, char **argv, void *userdata) {
1044 _cleanup_(sd_journal_closep) sd_journal *j = NULL;
158ecef5 1045 _cleanup_fclose_ FILE *f = NULL;
9fe13294
ZJS		 1046 int r;
1047
d7a0f1f4
FS		 1048 if (arg_field)
1049 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1050 "Option --field/-F only makes sense with list");
5ce97d33
YW		 1051
1052 r = acquire_journal(&j, argv + 1);
1053 if (r < 0)
1054 return r;
9fe13294
ZJS		 1055
1056 r = focus(j);
1057 if (r < 0)
ada45c78 1058 return r;
ada45c78 1059
158ecef5
ZJS		 1060 if (arg_output) {
1061 f = fopen(arg_output, "we");
1062 if (!f)
1063 return log_error_errno(errno, "Failed to open \"%s\" for writing: %m", arg_output);
1064 }
1065
1066 print_info(f ? stdout : stderr, j, false);
9fe13294 1067
158ecef5 1068 r = save_core(j, f, NULL, NULL);
23bbb0de 1069 if (r < 0)
bb7c5bad 1070 return r;
5de0409e
ZJS		 1071
1072 r = sd_journal_previous(j);
b9aaa7f4
ZJS		 1073 if (r > 0 && !arg_quiet)
1074 log_notice("More than one entry matches, ignoring rest.");
5de0409e
ZJS		 1075
1076 return 0;
1077}
1078
c5896b6a 1079static int run_debug(int argc, char **argv, void *userdata) {
5ce97d33 1080 _cleanup_(sd_journal_closep) sd_journal *j = NULL;
a2be8be2
MF		 1081 _cleanup_free_ char *exe = NULL, *path = NULL;
1082 _cleanup_strv_free_ char **debugger_call = NULL;
9fe13294 1083 bool unlink_path = false;
c5896b6a 1084 const char *data, *fork_name;
ada45c78 1085 size_t len;
ada45c78 1086 pid_t pid;
ada45c78 1087 int r;
ada45c78 1088
c5896b6a
RG		 1089 if (!arg_debugger) {
1090 char *env_debugger;
1091
1092 env_debugger = getenv("SYSTEMD_DEBUGGER");
1093 if (env_debugger)
1094 arg_debugger = env_debugger;
1095 else
1096 arg_debugger = "gdb";
1097 }
1098
a2be8be2
MF		 1099 r = strv_extend(&debugger_call, arg_debugger);
1100 if (r < 0)
1101 return log_oom();
1102
1103 r = strv_extend_strv(&debugger_call, arg_debugger_args, false);
1104 if (r < 0)
1105 return log_oom();
3f0d8b2d 1106
d7a0f1f4
FS		 1107 if (arg_field)
1108 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1109 "Option --field/-F only makes sense with list");
5ce97d33
YW		 1110
1111 r = acquire_journal(&j, argv + 1);
1112 if (r < 0)
1113 return r;
ada45c78
LP		 1114
1115 r = focus(j);
1116 if (r < 0)
1117 return r;
1118
a174da59
FS		 1119 if (!arg_quiet) {
1120 print_info(stdout, j, false);
1121 fputs("\n", stdout);
1122 }
ada45c78
LP		 1123
1124 r = sd_journal_get_data(j, "COREDUMP_EXE", (const void**) &data, &len);
23bbb0de
MS		 1125 if (r < 0)
1126 return log_error_errno(r, "Failed to retrieve COREDUMP_EXE field: %m");
ada45c78 1127
fbd0b64f
LP		 1128 assert(len > STRLEN("COREDUMP_EXE="));
1129 data += STRLEN("COREDUMP_EXE=");
1130 len -= STRLEN("COREDUMP_EXE=");
ada45c78
LP		 1131
1132 exe = strndup(data, len);
1133 if (!exe)
1134 return log_oom();
1135
d7a0f1f4
FS		 1136 if (endswith(exe, " (deleted)"))
1137 return log_error_errno(SYNTHETIC_ERRNO(ENOENT),
1138 "Binary already deleted.");
ada45c78 1139
d7a0f1f4
FS		 1140 if (!path_is_absolute(exe))
1141 return log_error_errno(SYNTHETIC_ERRNO(ENOENT),
1142 "Binary is not an absolute path.");
a276ae74 1143
bb7c5bad 1144 r = save_core(j, NULL, &path, &unlink_path);
23bbb0de 1145 if (r < 0)
bb7c5bad 1146 return r;
ada45c78 1147
a2be8be2
MF		 1148 r = strv_extend_strv(&debugger_call, STRV_MAKE(exe, "-c", path), false);
1149 if (r < 0)
1150 return log_oom();
1151
3e7bc89b 1152 /* Don't interfere with gdb and its handling of SIGINT. */
9c274488 1153 (void) ignore_signals(SIGINT);
3e7bc89b 1154
a2be8be2 1155 fork_name = strjoina("(", debugger_call[0], ")");
c5896b6a 1156
48f813c4 1157 r = safe_fork(fork_name, FORK_RESET_SIGNALS|FORK_DEATHSIG|FORK_CLOSE_ALL_FDS|FORK_RLIMIT_NOFILE_SAFE|FORK_LOG|FORK_FLUSH_STDIO, &pid);
b6e1fff1 1158 if (r < 0)
ada45c78 1159 goto finish;
4c253ed1 1160 if (r == 0) {
a2be8be2 1161 execvp(debugger_call[0], debugger_call);
0b1f3c76 1162 log_open();
a2be8be2 1163 log_error_errno(errno, "Failed to invoke %s: %m", debugger_call[0]);
a45d7127 1164 _exit(EXIT_FAILURE);
ada45c78
LP		 1165 }
1166
a2be8be2 1167 r = wait_for_terminate_and_check(debugger_call[0], pid, WAIT_LOG_ABNORMAL);
ada45c78
LP		 1168
1169finish:
9c274488 1170 (void) default_signals(SIGINT);
3e7bc89b 1171
9fe13294
ZJS		 1172 if (unlink_path) {
1173 log_debug("Removed temporary file %s", path);
6990fb6b 1174 (void) unlink(path);
9fe13294 1175 }
a276ae74 1176
ada45c78
LP		 1177 return r;
1178}
1179
012f2b7d 1180static int check_units_active(void) {
7add4883 1181 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
012f2b7d
ZJS		 1182 _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
1183 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1184 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1185 int c = 0, r;
7bbf2d84 1186 const char *id, *state, *substate;
012f2b7d 1187
b9aaa7f4
ZJS		 1188 if (arg_quiet)
1189 return false;
1190
012f2b7d 1191 r = sd_bus_default_system(&bus);
414bd2e7
DDM		 1192 if (r == -ENOENT) {
1193 log_debug("D-Bus is not running, skipping active unit check");
1194 return 0;
1195 }
012f2b7d
ZJS		 1196 if (r < 0)
1197 return log_error_errno(r, "Failed to acquire bus: %m");
1198
1199 r = sd_bus_message_new_method_call(
1200 bus,
1201 &m,
1202 "org.freedesktop.systemd1",
1203 "/org/freedesktop/systemd1",
1204 "org.freedesktop.systemd1.Manager",
1205 "ListUnitsByPatterns");
1206 if (r < 0)
1207 return bus_log_create_error(r);
1208
1209 r = sd_bus_message_append_strv(m, NULL);
1210 if (r < 0)
1211 return bus_log_create_error(r);
1212
1213 r = sd_bus_message_append_strv(m, STRV_MAKE("systemd-coredump@*.service"));
1214 if (r < 0)
1215 return bus_log_create_error(r);
1216
501551e8 1217 r = sd_bus_call(bus, m, SHORT_BUS_CALL_TIMEOUT_USEC, &error, &reply);
012f2b7d
ZJS		 1218 if (r < 0)
1219 return log_error_errno(r, "Failed to check if any systemd-coredump@.service units are running: %s",
1220 bus_error_message(&error, r));
1221
1222 r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssssouso)");
1223 if (r < 0)
1224 return bus_log_parse_error(r);
1225
1226 while ((r = sd_bus_message_read(
1227 reply, "(ssssssouso)",
7bbf2d84
ZJS		 1228 &id, NULL, NULL, &state, &substate,
1229 NULL, NULL, NULL, NULL, NULL)) > 0) {
eb5877a0 1230 bool found = !STR_IN_SET(state, "inactive", "dead", "failed");
7bbf2d84
ZJS		 1231 log_debug("Unit %s is %s/%s, %scounting it.", id, state, substate, found ? "" : "not ");
1232 c += found;
1233 }
012f2b7d
ZJS		 1234 if (r < 0)
1235 return bus_log_parse_error(r);
1236
1237 r = sd_bus_message_exit_container(reply);
1238 if (r < 0)
1239 return bus_log_parse_error(r);
1240
1241 return c;
1242}
1243
5ce97d33
YW		 1244static int coredumpctl_main(int argc, char *argv[]) {
1245
1246 static const Verb verbs[] = {
c5896b6a
RG		 1247 { "list", VERB_ANY, VERB_ANY, VERB_DEFAULT, dump_list },
1248 { "info", VERB_ANY, VERB_ANY, 0, dump_list },
1249 { "dump", VERB_ANY, VERB_ANY, 0, dump_core },
1250 { "debug", VERB_ANY, VERB_ANY, 0, run_debug },
1251 { "gdb", VERB_ANY, VERB_ANY, 0, run_debug },
6d8be376 1252 { "help", VERB_ANY, 1, 0, verb_help },
5ce97d33
YW		 1253 {}
1254 };
1255
1256 return dispatch_verb(argc, argv, verbs, NULL);
1257}
1258
c118b577 1259static int run(int argc, char *argv[]) {
5ce97d33 1260 int r, units_active;
5de0409e 1261
a9cdc94f 1262 setlocale(LC_ALL, "");
d2acb93d 1263 log_setup();
5de0409e 1264
1abaf488
LP		 1265 /* The journal merging logic potentially needs a lot of fds. */
1266 (void) rlimit_nofile_bump(HIGH_RLIMIT_NOFILE);
1267
5ab9ed07 1268 r = parse_argv(argc, argv);
5ce97d33 1269 if (r <= 0)
c118b577 1270 return r;
5de0409e 1271
2cf4172a
LP		 1272 sigbus_install();
1273
012f2b7d
ZJS		 1274 units_active = check_units_active(); /* error is treated the same as 0 */
1275
5ce97d33 1276 r = coredumpctl_main(argc, argv);
5de0409e 1277
012f2b7d
ZJS		 1278 if (units_active > 0)
1279 printf("%s-- Notice: %d systemd-coredump@.service %s, output may be incomplete.%s\n",
1280 ansi_highlight_red(),
1281 units_active, units_active == 1 ? "unit is running" : "units are running",
1282 ansi_normal());
aeb56450 1283
c118b577 1284 return r;
5de0409e 1285}
c118b577
ZJS		 1286
1287DEFINE_MAIN_FUNCTION_WITH_POSITIVE_FAILURE(run);
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