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Commit | Line | Data |
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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
5899f3b7 | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
c9b97d2a | 22 | #include <errno.h> |
16801e90 | 23 | #include <fcntl.h> |
07630cea LP |
24 | #include <printf.h> |
25 | #include <stdarg.h> | |
26 | #include <stddef.h> | |
27 | #include <stdio.h> | |
16801e90 LP |
28 | #include <sys/socket.h> |
29 | #include <sys/un.h> | |
07630cea | 30 | #include <unistd.h> |
5899f3b7 | 31 | |
158350e8 | 32 | #include "sd-messages.h" |
07630cea | 33 | |
b5efdb8a | 34 | #include "alloc-util.h" |
3ffd4af2 | 35 | #include "fd-util.h" |
6482f626 | 36 | #include "formats-util.h" |
afc5dbf3 | 37 | #include "io-util.h" |
3ffd4af2 | 38 | #include "log.h" |
07630cea LP |
39 | #include "macro.h" |
40 | #include "missing.h" | |
4e731273 LP |
41 | #include "parse-util.h" |
42 | #include "proc-cmdline.h" | |
0b452006 | 43 | #include "process-util.h" |
24882e06 | 44 | #include "signal-util.h" |
07630cea | 45 | #include "socket-util.h" |
15a5e950 | 46 | #include "stdio-util.h" |
8b43440b | 47 | #include "string-table.h" |
07630cea | 48 | #include "string-util.h" |
7ccbd1ae | 49 | #include "syslog-util.h" |
07630cea LP |
50 | #include "terminal-util.h" |
51 | #include "util.h" | |
5899f3b7 | 52 | |
bb99a35a LP |
53 | #define SNDBUF_SIZE (8*1024*1024) |
54 | ||
16801e90 | 55 | static LogTarget log_target = LOG_TARGET_CONSOLE; |
bbe63281 | 56 | static int log_max_level = LOG_INFO; |
3eff4208 | 57 | static int log_facility = LOG_DAEMON; |
16801e90 | 58 | |
843d2643 | 59 | static int console_fd = STDERR_FILENO; |
16801e90 LP |
60 | static int syslog_fd = -1; |
61 | static int kmsg_fd = -1; | |
5ba081b0 | 62 | static int journal_fd = -1; |
16801e90 | 63 | |
c31e1495 LP |
64 | static bool syslog_is_stream = false; |
65 | ||
bbe63281 LP |
66 | static bool show_color = false; |
67 | static bool show_location = false; | |
68 | ||
c1dc6153 LP |
69 | static bool upgrade_syslog_to_journal = false; |
70 | ||
35b8ca3a | 71 | /* Akin to glibc's __abort_msg; which is private and we hence cannot |
185986c6 LP |
72 | * use here. */ |
73 | static char *log_abort_msg = NULL; | |
74 | ||
843d2643 LP |
75 | void log_close_console(void) { |
76 | ||
77 | if (console_fd < 0) | |
78 | return; | |
16801e90 | 79 | |
c8513d54 LP |
80 | if (getpid() == 1) { |
81 | if (console_fd >= 3) | |
03e334a1 | 82 | safe_close(console_fd); |
c8513d54 | 83 | |
843d2643 | 84 | console_fd = -1; |
16801e90 LP |
85 | } |
86 | } | |
87 | ||
843d2643 | 88 | static int log_open_console(void) { |
16801e90 | 89 | |
843d2643 | 90 | if (console_fd >= 0) |
16801e90 | 91 | return 0; |
843d2643 LP |
92 | |
93 | if (getpid() == 1) { | |
5ba081b0 | 94 | console_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
cd15c418 | 95 | if (console_fd < 0) |
843d2643 | 96 | return console_fd; |
843d2643 LP |
97 | } else |
98 | console_fd = STDERR_FILENO; | |
99 | ||
100 | return 0; | |
101 | } | |
102 | ||
103 | void log_close_kmsg(void) { | |
03e334a1 | 104 | kmsg_fd = safe_close(kmsg_fd); |
843d2643 LP |
105 | } |
106 | ||
107 | static int log_open_kmsg(void) { | |
16801e90 LP |
108 | |
109 | if (kmsg_fd >= 0) | |
110 | return 0; | |
111 | ||
674f8283 | 112 | kmsg_fd = open("/dev/kmsg", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
cd15c418 | 113 | if (kmsg_fd < 0) |
16801e90 | 114 | return -errno; |
0dae83f9 | 115 | |
16801e90 LP |
116 | return 0; |
117 | } | |
118 | ||
119 | void log_close_syslog(void) { | |
03e334a1 | 120 | syslog_fd = safe_close(syslog_fd); |
16801e90 LP |
121 | } |
122 | ||
c31e1495 | 123 | static int create_log_socket(int type) { |
8b18fdc1 | 124 | struct timeval tv; |
95066a90 | 125 | int fd; |
c31e1495 | 126 | |
8b18fdc1 | 127 | fd = socket(AF_UNIX, type|SOCK_CLOEXEC, 0); |
5ba081b0 | 128 | if (fd < 0) |
c31e1495 LP |
129 | return -errno; |
130 | ||
bb99a35a LP |
131 | fd_inc_sndbuf(fd, SNDBUF_SIZE); |
132 | ||
8b18fdc1 LP |
133 | /* We need a blocking fd here since we'd otherwise lose |
134 | messages way too early. However, let's not hang forever in the | |
135 | unlikely case of a deadlock. */ | |
4d89874a ZJS |
136 | if (getpid() == 1) |
137 | timeval_store(&tv, 10 * USEC_PER_MSEC); | |
138 | else | |
139 | timeval_store(&tv, 10 * USEC_PER_SEC); | |
086891e5 | 140 | (void) setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)); |
8b18fdc1 | 141 | |
c31e1495 LP |
142 | return fd; |
143 | } | |
144 | ||
843d2643 | 145 | static int log_open_syslog(void) { |
95066a90 LP |
146 | |
147 | static const union sockaddr_union sa = { | |
b92bea5d ZJS |
148 | .un.sun_family = AF_UNIX, |
149 | .un.sun_path = "/dev/log", | |
150 | }; | |
16801e90 | 151 | |
95066a90 LP |
152 | int r; |
153 | ||
16801e90 LP |
154 | if (syslog_fd >= 0) |
155 | return 0; | |
156 | ||
5ba081b0 LP |
157 | syslog_fd = create_log_socket(SOCK_DGRAM); |
158 | if (syslog_fd < 0) { | |
159 | r = syslog_fd; | |
843d2643 | 160 | goto fail; |
16801e90 LP |
161 | } |
162 | ||
3338b959 | 163 | if (connect(syslog_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) { |
03e334a1 | 164 | safe_close(syslog_fd); |
c31e1495 LP |
165 | |
166 | /* Some legacy syslog systems still use stream | |
167 | * sockets. They really shouldn't. But what can we | |
168 | * do... */ | |
5ba081b0 LP |
169 | syslog_fd = create_log_socket(SOCK_STREAM); |
170 | if (syslog_fd < 0) { | |
171 | r = syslog_fd; | |
c31e1495 LP |
172 | goto fail; |
173 | } | |
174 | ||
3338b959 | 175 | if (connect(syslog_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) { |
c31e1495 LP |
176 | r = -errno; |
177 | goto fail; | |
178 | } | |
179 | ||
180 | syslog_is_stream = true; | |
181 | } else | |
182 | syslog_is_stream = false; | |
183 | ||
16801e90 | 184 | return 0; |
843d2643 LP |
185 | |
186 | fail: | |
187 | log_close_syslog(); | |
843d2643 LP |
188 | return r; |
189 | } | |
190 | ||
5ba081b0 | 191 | void log_close_journal(void) { |
03e334a1 | 192 | journal_fd = safe_close(journal_fd); |
5ba081b0 LP |
193 | } |
194 | ||
195 | static int log_open_journal(void) { | |
95066a90 LP |
196 | |
197 | static const union sockaddr_union sa = { | |
b92bea5d ZJS |
198 | .un.sun_family = AF_UNIX, |
199 | .un.sun_path = "/run/systemd/journal/socket", | |
200 | }; | |
95066a90 | 201 | |
5ba081b0 LP |
202 | int r; |
203 | ||
204 | if (journal_fd >= 0) | |
205 | return 0; | |
206 | ||
207 | journal_fd = create_log_socket(SOCK_DGRAM); | |
208 | if (journal_fd < 0) { | |
209 | r = journal_fd; | |
210 | goto fail; | |
211 | } | |
212 | ||
5ba081b0 LP |
213 | if (connect(journal_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) { |
214 | r = -errno; | |
215 | goto fail; | |
216 | } | |
217 | ||
5ba081b0 LP |
218 | return 0; |
219 | ||
220 | fail: | |
221 | log_close_journal(); | |
5ba081b0 LP |
222 | return r; |
223 | } | |
224 | ||
843d2643 LP |
225 | int log_open(void) { |
226 | int r; | |
227 | ||
228 | /* If we don't use the console we close it here, to not get | |
229 | * killed by SAK. If we don't use syslog we close it here so | |
230 | * that we are not confused by somebody deleting the socket in | |
231 | * the fs. If we don't use /dev/kmsg we still keep it open, | |
232 | * because there is no reason to close it. */ | |
233 | ||
9fae33d2 | 234 | if (log_target == LOG_TARGET_NULL) { |
5ba081b0 | 235 | log_close_journal(); |
9fae33d2 LP |
236 | log_close_syslog(); |
237 | log_close_console(); | |
238 | return 0; | |
239 | } | |
240 | ||
a6903061 | 241 | if ((log_target != LOG_TARGET_AUTO && log_target != LOG_TARGET_SAFE) || |
bb7df0da | 242 | getpid() == 1 || |
f41c094c | 243 | isatty(STDERR_FILENO) <= 0) { |
bb7df0da LP |
244 | |
245 | if (log_target == LOG_TARGET_AUTO || | |
5ba081b0 LP |
246 | log_target == LOG_TARGET_JOURNAL_OR_KMSG || |
247 | log_target == LOG_TARGET_JOURNAL) { | |
248 | r = log_open_journal(); | |
249 | if (r >= 0) { | |
250 | log_close_syslog(); | |
bb7df0da LP |
251 | log_close_console(); |
252 | return r; | |
253 | } | |
5ba081b0 LP |
254 | } |
255 | ||
256 | if (log_target == LOG_TARGET_SYSLOG_OR_KMSG || | |
257 | log_target == LOG_TARGET_SYSLOG) { | |
258 | r = log_open_syslog(); | |
259 | if (r >= 0) { | |
260 | log_close_journal(); | |
261 | log_close_console(); | |
262 | return r; | |
263 | } | |
264 | } | |
265 | ||
bb7df0da | 266 | if (log_target == LOG_TARGET_AUTO || |
a6903061 | 267 | log_target == LOG_TARGET_SAFE || |
5ba081b0 | 268 | log_target == LOG_TARGET_JOURNAL_OR_KMSG || |
bb7df0da | 269 | log_target == LOG_TARGET_SYSLOG_OR_KMSG || |
5ba081b0 LP |
270 | log_target == LOG_TARGET_KMSG) { |
271 | r = log_open_kmsg(); | |
272 | if (r >= 0) { | |
273 | log_close_journal(); | |
bb7df0da LP |
274 | log_close_syslog(); |
275 | log_close_console(); | |
276 | return r; | |
277 | } | |
5ba081b0 | 278 | } |
bb7df0da | 279 | } |
843d2643 | 280 | |
5ba081b0 | 281 | log_close_journal(); |
843d2643 | 282 | log_close_syslog(); |
dcdf86bb | 283 | |
843d2643 | 284 | return log_open_console(); |
16801e90 LP |
285 | } |
286 | ||
287 | void log_set_target(LogTarget target) { | |
288 | assert(target >= 0); | |
289 | assert(target < _LOG_TARGET_MAX); | |
290 | ||
c1dc6153 LP |
291 | if (upgrade_syslog_to_journal) { |
292 | if (target == LOG_TARGET_SYSLOG) | |
293 | target = LOG_TARGET_JOURNAL; | |
294 | else if (target == LOG_TARGET_SYSLOG_OR_KMSG) | |
295 | target = LOG_TARGET_JOURNAL_OR_KMSG; | |
296 | } | |
297 | ||
16801e90 LP |
298 | log_target = target; |
299 | } | |
300 | ||
871e5809 | 301 | void log_close(void) { |
5ba081b0 | 302 | log_close_journal(); |
871e5809 | 303 | log_close_syslog(); |
5ba081b0 LP |
304 | log_close_kmsg(); |
305 | log_close_console(); | |
871e5809 LP |
306 | } |
307 | ||
4d8a7798 | 308 | void log_forget_fds(void) { |
5ba081b0 | 309 | console_fd = kmsg_fd = syslog_fd = journal_fd = -1; |
4d8a7798 MS |
310 | } |
311 | ||
16801e90 LP |
312 | void log_set_max_level(int level) { |
313 | assert((level & LOG_PRIMASK) == level); | |
314 | ||
315 | log_max_level = level; | |
316 | } | |
317 | ||
3eff4208 LP |
318 | void log_set_facility(int facility) { |
319 | log_facility = facility; | |
320 | } | |
321 | ||
843d2643 | 322 | static int write_to_console( |
20c03b7b | 323 | int level, |
086891e5 | 324 | int error, |
95066a90 | 325 | const char *file, |
20c03b7b LP |
326 | int line, |
327 | const char *func, | |
086891e5 | 328 | const char *object_field, |
fdf9f9bb | 329 | const char *object, |
20c03b7b | 330 | const char *buffer) { |
5899f3b7 | 331 | |
aca83a53 LP |
332 | char location[64], prefix[1 + DECIMAL_STR_MAX(int) + 2]; |
333 | struct iovec iovec[6] = {}; | |
843d2643 LP |
334 | unsigned n = 0; |
335 | bool highlight; | |
5899f3b7 | 336 | |
843d2643 LP |
337 | if (console_fd < 0) |
338 | return 0; | |
339 | ||
aca83a53 LP |
340 | if (log_target == LOG_TARGET_CONSOLE_PREFIXED) { |
341 | sprintf(prefix, "<%i>", level); | |
342 | IOVEC_SET_STRING(iovec[n++], prefix); | |
343 | } | |
344 | ||
bbe63281 | 345 | highlight = LOG_PRI(level) <= LOG_ERR && show_color; |
843d2643 | 346 | |
674f8283 | 347 | if (show_location) { |
1fa2f38f | 348 | snprintf(location, sizeof(location), "(%s:%i) ", file, line); |
bbe63281 | 349 | IOVEC_SET_STRING(iovec[n++], location); |
674f8283 LP |
350 | } |
351 | ||
843d2643 | 352 | if (highlight) |
1fc464f6 | 353 | IOVEC_SET_STRING(iovec[n++], ANSI_HIGHLIGHT_RED); |
843d2643 LP |
354 | IOVEC_SET_STRING(iovec[n++], buffer); |
355 | if (highlight) | |
1fc464f6 | 356 | IOVEC_SET_STRING(iovec[n++], ANSI_NORMAL); |
843d2643 LP |
357 | IOVEC_SET_STRING(iovec[n++], "\n"); |
358 | ||
0e6eaa2d LP |
359 | if (writev(console_fd, iovec, n) < 0) { |
360 | ||
361 | if (errno == EIO && getpid() == 1) { | |
362 | ||
363 | /* If somebody tried to kick us from our | |
364 | * console tty (via vhangup() or suchlike), | |
365 | * try to reconnect */ | |
366 | ||
367 | log_close_console(); | |
368 | log_open_console(); | |
369 | ||
370 | if (console_fd < 0) | |
371 | return 0; | |
372 | ||
373 | if (writev(console_fd, iovec, n) < 0) | |
374 | return -errno; | |
375 | } else | |
376 | return -errno; | |
377 | } | |
5899f3b7 | 378 | |
843d2643 | 379 | return 1; |
16801e90 | 380 | } |
5899f3b7 | 381 | |
16801e90 | 382 | static int write_to_syslog( |
086891e5 LP |
383 | int level, |
384 | int error, | |
95066a90 | 385 | const char *file, |
086891e5 LP |
386 | int line, |
387 | const char *func, | |
388 | const char *object_field, | |
389 | const char *object, | |
390 | const char *buffer) { | |
16801e90 | 391 | |
5ffa8c81 ZJS |
392 | char header_priority[2 + DECIMAL_STR_MAX(int) + 1], |
393 | header_time[64], | |
394 | header_pid[4 + DECIMAL_STR_MAX(pid_t) + 1]; | |
b92bea5d ZJS |
395 | struct iovec iovec[5] = {}; |
396 | struct msghdr msghdr = { | |
397 | .msg_iov = iovec, | |
398 | .msg_iovlen = ELEMENTSOF(iovec), | |
399 | }; | |
16801e90 LP |
400 | time_t t; |
401 | struct tm *tm; | |
402 | ||
403 | if (syslog_fd < 0) | |
843d2643 | 404 | return 0; |
16801e90 | 405 | |
5ffa8c81 | 406 | xsprintf(header_priority, "<%i>", level); |
16801e90 LP |
407 | |
408 | t = (time_t) (now(CLOCK_REALTIME) / USEC_PER_SEC); | |
fdf9f9bb ZJS |
409 | tm = localtime(&t); |
410 | if (!tm) | |
16801e90 LP |
411 | return -EINVAL; |
412 | ||
413 | if (strftime(header_time, sizeof(header_time), "%h %e %T ", tm) <= 0) | |
414 | return -EINVAL; | |
415 | ||
5ffa8c81 | 416 | xsprintf(header_pid, "["PID_FMT"]: ", getpid()); |
16801e90 | 417 | |
16801e90 LP |
418 | IOVEC_SET_STRING(iovec[0], header_priority); |
419 | IOVEC_SET_STRING(iovec[1], header_time); | |
5b6319dc | 420 | IOVEC_SET_STRING(iovec[2], program_invocation_short_name); |
16801e90 LP |
421 | IOVEC_SET_STRING(iovec[3], header_pid); |
422 | IOVEC_SET_STRING(iovec[4], buffer); | |
423 | ||
c899f8c6 | 424 | /* When using syslog via SOCK_STREAM separate the messages by NUL chars */ |
c31e1495 LP |
425 | if (syslog_is_stream) |
426 | iovec[4].iov_len++; | |
427 | ||
c31e1495 LP |
428 | for (;;) { |
429 | ssize_t n; | |
430 | ||
8f7f7a1b MS |
431 | n = sendmsg(syslog_fd, &msghdr, MSG_NOSIGNAL); |
432 | if (n < 0) | |
c31e1495 LP |
433 | return -errno; |
434 | ||
435 | if (!syslog_is_stream || | |
436 | (size_t) n >= IOVEC_TOTAL_SIZE(iovec, ELEMENTSOF(iovec))) | |
437 | break; | |
438 | ||
439 | IOVEC_INCREMENT(iovec, ELEMENTSOF(iovec), n); | |
440 | } | |
16801e90 | 441 | |
843d2643 | 442 | return 1; |
16801e90 LP |
443 | } |
444 | ||
445 | static int write_to_kmsg( | |
086891e5 LP |
446 | int level, |
447 | int error, | |
bcf5c276 | 448 | const char *file, |
086891e5 LP |
449 | int line, |
450 | const char *func, | |
451 | const char *object_field, | |
452 | const char *object, | |
453 | const char *buffer) { | |
16801e90 | 454 | |
5ffa8c81 ZJS |
455 | char header_priority[2 + DECIMAL_STR_MAX(int) + 1], |
456 | header_pid[4 + DECIMAL_STR_MAX(pid_t) + 1]; | |
b92bea5d | 457 | struct iovec iovec[5] = {}; |
16801e90 LP |
458 | |
459 | if (kmsg_fd < 0) | |
843d2643 | 460 | return 0; |
16801e90 | 461 | |
5ffa8c81 ZJS |
462 | xsprintf(header_priority, "<%i>", level); |
463 | xsprintf(header_pid, "["PID_FMT"]: ", getpid()); | |
16801e90 | 464 | |
16801e90 | 465 | IOVEC_SET_STRING(iovec[0], header_priority); |
5b6319dc | 466 | IOVEC_SET_STRING(iovec[1], program_invocation_short_name); |
16801e90 LP |
467 | IOVEC_SET_STRING(iovec[2], header_pid); |
468 | IOVEC_SET_STRING(iovec[3], buffer); | |
843d2643 | 469 | IOVEC_SET_STRING(iovec[4], "\n"); |
16801e90 LP |
470 | |
471 | if (writev(kmsg_fd, iovec, ELEMENTSOF(iovec)) < 0) | |
472 | return -errno; | |
473 | ||
843d2643 | 474 | return 1; |
16801e90 LP |
475 | } |
476 | ||
086891e5 LP |
477 | static int log_do_header( |
478 | char *header, | |
479 | size_t size, | |
480 | int level, | |
481 | int error, | |
482 | const char *file, int line, const char *func, | |
483 | const char *object_field, const char *object) { | |
484 | ||
41a79f10 | 485 | snprintf(header, size, |
5ba081b0 | 486 | "PRIORITY=%i\n" |
3eff4208 | 487 | "SYSLOG_FACILITY=%i\n" |
086891e5 | 488 | "%s%s%s" |
e429981b | 489 | "%s%.*i%s" |
086891e5 LP |
490 | "%s%s%s" |
491 | "%s%.*i%s" | |
492 | "%s%s%s" | |
41a79f10 | 493 | "SYSLOG_IDENTIFIER=%s\n", |
5ba081b0 | 494 | LOG_PRI(level), |
3eff4208 | 495 | LOG_FAC(level), |
086891e5 LP |
496 | isempty(file) ? "" : "CODE_FILE=", |
497 | isempty(file) ? "" : file, | |
498 | isempty(file) ? "" : "\n", | |
e429981b ZJS |
499 | line ? "CODE_LINE=" : "", |
500 | line ? 1 : 0, line, /* %.0d means no output too, special case for 0 */ | |
501 | line ? "\n" : "", | |
086891e5 LP |
502 | isempty(func) ? "" : "CODE_FUNCTION=", |
503 | isempty(func) ? "" : func, | |
504 | isempty(func) ? "" : "\n", | |
505 | error ? "ERRNO=" : "", | |
506 | error ? 1 : 0, error, | |
507 | error ? "\n" : "", | |
508 | isempty(object) ? "" : object_field, | |
509 | isempty(object) ? "" : object, | |
510 | isempty(object) ? "" : "\n", | |
d29b05a4 | 511 | program_invocation_short_name); |
086891e5 | 512 | |
41a79f10 ZJS |
513 | return 0; |
514 | } | |
5ba081b0 | 515 | |
41a79f10 | 516 | static int write_to_journal( |
086891e5 LP |
517 | int level, |
518 | int error, | |
bcf5c276 | 519 | const char *file, |
086891e5 LP |
520 | int line, |
521 | const char *func, | |
522 | const char *object_field, | |
523 | const char *object, | |
524 | const char *buffer) { | |
41a79f10 ZJS |
525 | |
526 | char header[LINE_MAX]; | |
b92bea5d ZJS |
527 | struct iovec iovec[4] = {}; |
528 | struct msghdr mh = {}; | |
41a79f10 ZJS |
529 | |
530 | if (journal_fd < 0) | |
531 | return 0; | |
532 | ||
086891e5 | 533 | log_do_header(header, sizeof(header), level, error, file, line, func, object_field, object); |
5ba081b0 | 534 | |
5ba081b0 | 535 | IOVEC_SET_STRING(iovec[0], header); |
41a79f10 ZJS |
536 | IOVEC_SET_STRING(iovec[1], "MESSAGE="); |
537 | IOVEC_SET_STRING(iovec[2], buffer); | |
538 | IOVEC_SET_STRING(iovec[3], "\n"); | |
5ba081b0 | 539 | |
5ba081b0 LP |
540 | mh.msg_iov = iovec; |
541 | mh.msg_iovlen = ELEMENTSOF(iovec); | |
542 | ||
543 | if (sendmsg(journal_fd, &mh, MSG_NOSIGNAL) < 0) | |
544 | return -errno; | |
545 | ||
546 | return 1; | |
547 | } | |
548 | ||
843d2643 | 549 | static int log_dispatch( |
086891e5 LP |
550 | int level, |
551 | int error, | |
95066a90 | 552 | const char *file, |
086891e5 LP |
553 | int line, |
554 | const char *func, | |
555 | const char *object_field, | |
556 | const char *object, | |
557 | char *buffer) { | |
843d2643 | 558 | |
bf371116 | 559 | assert(buffer); |
843d2643 | 560 | |
9fae33d2 | 561 | if (log_target == LOG_TARGET_NULL) |
bf371116 | 562 | return -error; |
9fae33d2 | 563 | |
29db5834 | 564 | /* Patch in LOG_DAEMON facility if necessary */ |
7d76f312 | 565 | if ((level & LOG_FACMASK) == 0) |
3eff4208 | 566 | level = log_facility | LOG_PRI(level); |
29db5834 | 567 | |
8f16f51d LP |
568 | if (error < 0) |
569 | error = -error; | |
570 | ||
9726b29e LP |
571 | do { |
572 | char *e; | |
9499b235 | 573 | int k = 0; |
843d2643 | 574 | |
9726b29e | 575 | buffer += strspn(buffer, NEWLINE); |
843d2643 | 576 | |
9726b29e LP |
577 | if (buffer[0] == 0) |
578 | break; | |
843d2643 | 579 | |
9726b29e LP |
580 | if ((e = strpbrk(buffer, NEWLINE))) |
581 | *(e++) = 0; | |
843d2643 | 582 | |
bb7df0da | 583 | if (log_target == LOG_TARGET_AUTO || |
5ba081b0 LP |
584 | log_target == LOG_TARGET_JOURNAL_OR_KMSG || |
585 | log_target == LOG_TARGET_JOURNAL) { | |
586 | ||
086891e5 | 587 | k = write_to_journal(level, error, file, line, func, object_field, object, buffer); |
4e7bc3f3 LP |
588 | if (k < 0) { |
589 | if (k != -EAGAIN) | |
5ba081b0 LP |
590 | log_close_journal(); |
591 | log_open_kmsg(); | |
bf371116 | 592 | } |
5ba081b0 LP |
593 | } |
594 | ||
595 | if (log_target == LOG_TARGET_SYSLOG_OR_KMSG || | |
9726b29e LP |
596 | log_target == LOG_TARGET_SYSLOG) { |
597 | ||
086891e5 | 598 | k = write_to_syslog(level, error, file, line, func, object_field, object, buffer); |
4e7bc3f3 LP |
599 | if (k < 0) { |
600 | if (k != -EAGAIN) | |
8f7f7a1b | 601 | log_close_syslog(); |
9726b29e | 602 | log_open_kmsg(); |
bf371116 | 603 | } |
9726b29e LP |
604 | } |
605 | ||
9499b235 | 606 | if (k <= 0 && |
bb7df0da | 607 | (log_target == LOG_TARGET_AUTO || |
a6903061 | 608 | log_target == LOG_TARGET_SAFE || |
bb7df0da | 609 | log_target == LOG_TARGET_SYSLOG_OR_KMSG || |
678d485a | 610 | log_target == LOG_TARGET_JOURNAL_OR_KMSG || |
9499b235 | 611 | log_target == LOG_TARGET_KMSG)) { |
9726b29e | 612 | |
086891e5 | 613 | k = write_to_kmsg(level, error, file, line, func, object_field, object, buffer); |
4e7bc3f3 LP |
614 | if (k < 0) { |
615 | log_close_kmsg(); | |
9726b29e | 616 | log_open_console(); |
bf371116 | 617 | } |
9726b29e LP |
618 | } |
619 | ||
bf371116 LP |
620 | if (k <= 0) |
621 | (void) write_to_console(level, error, file, line, func, object_field, object, buffer); | |
9726b29e LP |
622 | |
623 | buffer = e; | |
624 | } while (buffer); | |
625 | ||
bf371116 | 626 | return -error; |
843d2643 LP |
627 | } |
628 | ||
2149e37c LP |
629 | int log_dump_internal( |
630 | int level, | |
086891e5 | 631 | int error, |
bf371116 | 632 | const char *file, |
2149e37c LP |
633 | int line, |
634 | const char *func, | |
635 | char *buffer) { | |
636 | ||
5c0aa72a | 637 | PROTECT_ERRNO; |
2149e37c LP |
638 | |
639 | /* This modifies the buffer... */ | |
640 | ||
bf371116 LP |
641 | if (error < 0) |
642 | error = -error; | |
643 | ||
2149e37c | 644 | if (_likely_(LOG_PRI(level) > log_max_level)) |
bf371116 | 645 | return -error; |
2149e37c | 646 | |
086891e5 | 647 | return log_dispatch(level, error, file, line, func, NULL, NULL, buffer); |
2149e37c LP |
648 | } |
649 | ||
79008bdd | 650 | int log_internalv( |
086891e5 LP |
651 | int level, |
652 | int error, | |
bcf5c276 | 653 | const char *file, |
086891e5 LP |
654 | int line, |
655 | const char *func, | |
656 | const char *format, | |
657 | va_list ap) { | |
16801e90 | 658 | |
5c0aa72a | 659 | PROTECT_ERRNO; |
addab137 | 660 | char buffer[LINE_MAX]; |
16801e90 | 661 | |
bf371116 LP |
662 | if (error < 0) |
663 | error = -error; | |
664 | ||
93a46b0b | 665 | if (_likely_(LOG_PRI(level) > log_max_level)) |
bf371116 | 666 | return -error; |
16801e90 | 667 | |
086891e5 LP |
668 | /* Make sure that %m maps to the specified error */ |
669 | if (error != 0) | |
bf371116 | 670 | errno = error; |
086891e5 | 671 | |
843d2643 | 672 | vsnprintf(buffer, sizeof(buffer), format, ap); |
843d2643 | 673 | |
086891e5 | 674 | return log_dispatch(level, error, file, line, func, NULL, NULL, buffer); |
185986c6 | 675 | } |
16801e90 | 676 | |
79008bdd | 677 | int log_internal( |
086891e5 LP |
678 | int level, |
679 | int error, | |
bcf5c276 | 680 | const char *file, |
086891e5 LP |
681 | int line, |
682 | const char *func, | |
683 | const char *format, ...) { | |
17a94911 | 684 | |
17a94911 | 685 | va_list ap; |
bf371116 | 686 | int r; |
17a94911 LP |
687 | |
688 | va_start(ap, format); | |
79008bdd | 689 | r = log_internalv(level, error, file, line, func, format, ap); |
17a94911 LP |
690 | va_end(ap); |
691 | ||
692 | return r; | |
693 | } | |
694 | ||
79008bdd | 695 | int log_object_internalv( |
086891e5 LP |
696 | int level, |
697 | int error, | |
bcf5c276 | 698 | const char *file, |
086891e5 LP |
699 | int line, |
700 | const char *func, | |
701 | const char *object_field, | |
702 | const char *object, | |
703 | const char *format, | |
704 | va_list ap) { | |
fdf9f9bb | 705 | |
5c0aa72a | 706 | PROTECT_ERRNO; |
f2341e0a LP |
707 | char *buffer, *b; |
708 | size_t l; | |
fdf9f9bb | 709 | |
bf371116 LP |
710 | if (error < 0) |
711 | error = -error; | |
712 | ||
fdf9f9bb | 713 | if (_likely_(LOG_PRI(level) > log_max_level)) |
bf371116 | 714 | return -error; |
fdf9f9bb | 715 | |
086891e5 LP |
716 | /* Make sure that %m maps to the specified error */ |
717 | if (error != 0) | |
bf371116 | 718 | errno = error; |
086891e5 | 719 | |
f2341e0a LP |
720 | /* Prepend the object name before the message */ |
721 | if (object) { | |
722 | size_t n; | |
723 | ||
724 | n = strlen(object); | |
725 | l = n + 2 + LINE_MAX; | |
726 | ||
727 | buffer = newa(char, l); | |
728 | b = stpcpy(stpcpy(buffer, object), ": "); | |
729 | } else { | |
730 | l = LINE_MAX; | |
731 | b = buffer = newa(char, l); | |
732 | } | |
733 | ||
734 | vsnprintf(b, l, format, ap); | |
fdf9f9bb | 735 | |
086891e5 | 736 | return log_dispatch(level, error, file, line, func, object_field, object, buffer); |
fdf9f9bb ZJS |
737 | } |
738 | ||
79008bdd | 739 | int log_object_internal( |
086891e5 LP |
740 | int level, |
741 | int error, | |
bcf5c276 | 742 | const char *file, |
086891e5 LP |
743 | int line, |
744 | const char *func, | |
745 | const char *object_field, | |
746 | const char *object, | |
747 | const char *format, ...) { | |
fdf9f9bb | 748 | |
fdf9f9bb | 749 | va_list ap; |
bf371116 | 750 | int r; |
fdf9f9bb ZJS |
751 | |
752 | va_start(ap, format); | |
79008bdd | 753 | r = log_object_internalv(level, error, file, line, func, object_field, object, format, ap); |
fdf9f9bb ZJS |
754 | va_end(ap); |
755 | ||
756 | return r; | |
757 | } | |
758 | ||
086891e5 LP |
759 | static void log_assert( |
760 | int level, | |
761 | const char *text, | |
762 | const char *file, | |
763 | int line, | |
764 | const char *func, | |
765 | const char *format) { | |
766 | ||
addab137 | 767 | static char buffer[LINE_MAX]; |
185986c6 | 768 | |
50f72bca ZJS |
769 | if (_likely_(LOG_PRI(level) > log_max_level)) |
770 | return; | |
771 | ||
bcfce235 | 772 | DISABLE_WARNING_FORMAT_NONLITERAL; |
b7f33638 | 773 | snprintf(buffer, sizeof(buffer), format, text, file, line, func); |
bcfce235 | 774 | REENABLE_WARNING; |
185986c6 | 775 | |
185986c6 LP |
776 | log_abort_msg = buffer; |
777 | ||
086891e5 | 778 | log_dispatch(level, 0, file, line, func, NULL, NULL, buffer); |
5899f3b7 | 779 | } |
34f0e866 | 780 | |
919ce0b7 | 781 | noreturn void log_assert_failed(const char *text, const char *file, int line, const char *func) { |
80514f9c LP |
782 | log_assert(LOG_CRIT, text, file, line, func, "Assertion '%s' failed at %s:%u, function %s(). Aborting."); |
783 | abort(); | |
b7f33638 MS |
784 | } |
785 | ||
919ce0b7 | 786 | noreturn void log_assert_failed_unreachable(const char *text, const char *file, int line, const char *func) { |
80514f9c LP |
787 | log_assert(LOG_CRIT, text, file, line, func, "Code should not be reached '%s' at %s:%u, function %s(). Aborting."); |
788 | abort(); | |
789 | } | |
790 | ||
791 | void log_assert_failed_return(const char *text, const char *file, int line, const char *func) { | |
e5ca092c | 792 | PROTECT_ERRNO; |
80514f9c | 793 | log_assert(LOG_DEBUG, text, file, line, func, "Assertion '%s' failed at %s:%u, function %s(). Ignoring."); |
b7f33638 MS |
794 | } |
795 | ||
877d54e9 | 796 | int log_oom_internal(const char *file, int line, const char *func) { |
79008bdd | 797 | log_internal(LOG_ERR, ENOMEM, file, line, func, "Out of memory."); |
6dc1e7e0 MS |
798 | return -ENOMEM; |
799 | } | |
800 | ||
877d54e9 LP |
801 | int log_struct_internal( |
802 | int level, | |
086891e5 | 803 | int error, |
877d54e9 LP |
804 | const char *file, |
805 | int line, | |
806 | const char *func, | |
807 | const char *format, ...) { | |
808 | ||
bf371116 LP |
809 | char buf[LINE_MAX]; |
810 | bool found = false; | |
5c0aa72a | 811 | PROTECT_ERRNO; |
877d54e9 | 812 | va_list ap; |
bf371116 LP |
813 | |
814 | if (error < 0) | |
815 | error = -error; | |
877d54e9 LP |
816 | |
817 | if (_likely_(LOG_PRI(level) > log_max_level)) | |
bf371116 | 818 | return -error; |
877d54e9 LP |
819 | |
820 | if (log_target == LOG_TARGET_NULL) | |
bf371116 | 821 | return -error; |
877d54e9 LP |
822 | |
823 | if ((level & LOG_FACMASK) == 0) | |
824 | level = log_facility | LOG_PRI(level); | |
825 | ||
877d54e9 LP |
826 | if ((log_target == LOG_TARGET_AUTO || |
827 | log_target == LOG_TARGET_JOURNAL_OR_KMSG || | |
828 | log_target == LOG_TARGET_JOURNAL) && | |
829 | journal_fd >= 0) { | |
877d54e9 | 830 | char header[LINE_MAX]; |
b92bea5d | 831 | struct iovec iovec[17] = {}; |
877d54e9 | 832 | unsigned n = 0, i; |
543295ad ZJS |
833 | struct msghdr mh = { |
834 | .msg_iov = iovec, | |
835 | }; | |
41a79f10 | 836 | static const char nl = '\n'; |
bf371116 | 837 | bool fallback = false; |
877d54e9 LP |
838 | |
839 | /* If the journal is available do structured logging */ | |
086891e5 | 840 | log_do_header(header, sizeof(header), level, error, file, line, func, NULL, NULL); |
877d54e9 LP |
841 | IOVEC_SET_STRING(iovec[n++], header); |
842 | ||
843 | va_start(ap, format); | |
844 | while (format && n + 1 < ELEMENTSOF(iovec)) { | |
963ddb91 | 845 | va_list aq; |
bf371116 | 846 | char *m; |
877d54e9 | 847 | |
963ddb91 LP |
848 | /* We need to copy the va_list structure, |
849 | * since vasprintf() leaves it afterwards at | |
850 | * an undefined location */ | |
851 | ||
6357ac66 LP |
852 | if (error != 0) |
853 | errno = error; | |
854 | ||
963ddb91 | 855 | va_copy(aq, ap); |
bf371116 | 856 | if (vasprintf(&m, format, aq) < 0) { |
963ddb91 | 857 | va_end(aq); |
bf371116 | 858 | fallback = true; |
877d54e9 LP |
859 | goto finish; |
860 | } | |
963ddb91 LP |
861 | va_end(aq); |
862 | ||
863 | /* Now, jump enough ahead, so that we point to | |
864 | * the next format string */ | |
865 | VA_FORMAT_ADVANCE(format, ap); | |
877d54e9 | 866 | |
bf371116 | 867 | IOVEC_SET_STRING(iovec[n++], m); |
877d54e9 LP |
868 | |
869 | iovec[n].iov_base = (char*) &nl; | |
870 | iovec[n].iov_len = 1; | |
871 | n++; | |
872 | ||
873 | format = va_arg(ap, char *); | |
874 | } | |
877d54e9 | 875 | |
877d54e9 LP |
876 | mh.msg_iovlen = n; |
877 | ||
bf371116 | 878 | (void) sendmsg(journal_fd, &mh, MSG_NOSIGNAL); |
877d54e9 LP |
879 | |
880 | finish: | |
e98055de | 881 | va_end(ap); |
877d54e9 LP |
882 | for (i = 1; i < n; i += 2) |
883 | free(iovec[i].iov_base); | |
884 | ||
bf371116 LP |
885 | if (!fallback) |
886 | return -error; | |
887 | } | |
877d54e9 | 888 | |
bf371116 | 889 | /* Fallback if journal logging is not available or didn't work. */ |
6357ac66 | 890 | |
bf371116 LP |
891 | va_start(ap, format); |
892 | while (format) { | |
893 | va_list aq; | |
877d54e9 | 894 | |
bf371116 LP |
895 | if (error != 0) |
896 | errno = error; | |
877d54e9 | 897 | |
bf371116 LP |
898 | va_copy(aq, ap); |
899 | vsnprintf(buf, sizeof(buf), format, aq); | |
900 | va_end(aq); | |
963ddb91 | 901 | |
bf371116 LP |
902 | if (startswith(buf, "MESSAGE=")) { |
903 | found = true; | |
904 | break; | |
877d54e9 | 905 | } |
877d54e9 | 906 | |
bf371116 LP |
907 | VA_FORMAT_ADVANCE(format, ap); |
908 | ||
909 | format = va_arg(ap, char *); | |
877d54e9 | 910 | } |
bf371116 | 911 | va_end(ap); |
877d54e9 | 912 | |
bf371116 LP |
913 | if (!found) |
914 | return -error; | |
915 | ||
916 | return log_dispatch(level, error, file, line, func, NULL, NULL, buf + 8); | |
877d54e9 LP |
917 | } |
918 | ||
34f0e866 LP |
919 | int log_set_target_from_string(const char *e) { |
920 | LogTarget t; | |
921 | ||
5ba081b0 LP |
922 | t = log_target_from_string(e); |
923 | if (t < 0) | |
34f0e866 LP |
924 | return -EINVAL; |
925 | ||
926 | log_set_target(t); | |
927 | return 0; | |
928 | } | |
929 | ||
930 | int log_set_max_level_from_string(const char *e) { | |
931 | int t; | |
932 | ||
5ba081b0 LP |
933 | t = log_level_from_string(e); |
934 | if (t < 0) | |
737af734 | 935 | return -EINVAL; |
34f0e866 LP |
936 | |
937 | log_set_max_level(t); | |
938 | return 0; | |
939 | } | |
940 | ||
1de1c9c3 LP |
941 | static int parse_proc_cmdline_item(const char *key, const char *value) { |
942 | ||
943 | /* | |
944 | * The systemd.log_xyz= settings are parsed by all tools, and | |
945 | * so is "debug". | |
946 | * | |
5e07a79e LP |
947 | * However, "quiet" is only parsed by PID 1, and only turns of |
948 | * status output to /dev/console, but does not alter the log | |
949 | * level. | |
1de1c9c3 LP |
950 | */ |
951 | ||
952 | if (streq(key, "debug") && !value) | |
953 | log_set_max_level(LOG_DEBUG); | |
954 | ||
955 | else if (streq(key, "systemd.log_target") && value) { | |
956 | ||
957 | if (log_set_target_from_string(value) < 0) | |
958 | log_warning("Failed to parse log target '%s'. Ignoring.", value); | |
959 | ||
960 | } else if (streq(key, "systemd.log_level") && value) { | |
961 | ||
962 | if (log_set_max_level_from_string(value) < 0) | |
963 | log_warning("Failed to parse log level '%s'. Ignoring.", value); | |
964 | ||
965 | } else if (streq(key, "systemd.log_color") && value) { | |
966 | ||
967 | if (log_show_color_from_string(value) < 0) | |
968 | log_warning("Failed to parse log color setting '%s'. Ignoring.", value); | |
969 | ||
970 | } else if (streq(key, "systemd.log_location") && value) { | |
971 | ||
972 | if (log_show_location_from_string(value) < 0) | |
973 | log_warning("Failed to parse log location setting '%s'. Ignoring.", value); | |
974 | } | |
975 | ||
976 | return 0; | |
977 | } | |
978 | ||
34f0e866 LP |
979 | void log_parse_environment(void) { |
980 | const char *e; | |
b8d0ffc2 | 981 | |
ee46e555 ZJS |
982 | if (get_ctty_devnr(0, NULL) < 0) |
983 | /* Only try to read the command line in daemons. | |
984 | We assume that anything that has a controlling | |
985 | tty is user stuff. */ | |
986 | (void) parse_proc_cmdline(parse_proc_cmdline_item); | |
34f0e866 | 987 | |
4db17f29 | 988 | e = secure_getenv("SYSTEMD_LOG_TARGET"); |
88fae6e0 | 989 | if (e && log_set_target_from_string(e) < 0) |
f0ea29ea | 990 | log_warning("Failed to parse log target '%s'. Ignoring.", e); |
34f0e866 | 991 | |
4db17f29 | 992 | e = secure_getenv("SYSTEMD_LOG_LEVEL"); |
88fae6e0 | 993 | if (e && log_set_max_level_from_string(e) < 0) |
f0ea29ea | 994 | log_warning("Failed to parse log level '%s'. Ignoring.", e); |
bbe63281 | 995 | |
4db17f29 | 996 | e = secure_getenv("SYSTEMD_LOG_COLOR"); |
88fae6e0 | 997 | if (e && log_show_color_from_string(e) < 0) |
f0ea29ea | 998 | log_warning("Failed to parse bool '%s'. Ignoring.", e); |
bbe63281 | 999 | |
4db17f29 | 1000 | e = secure_getenv("SYSTEMD_LOG_LOCATION"); |
88fae6e0 | 1001 | if (e && log_show_location_from_string(e) < 0) |
f0ea29ea | 1002 | log_warning("Failed to parse bool '%s'. Ignoring.", e); |
34f0e866 LP |
1003 | } |
1004 | ||
1adf1049 LP |
1005 | LogTarget log_get_target(void) { |
1006 | return log_target; | |
1007 | } | |
1008 | ||
1009 | int log_get_max_level(void) { | |
1010 | return log_max_level; | |
1011 | } | |
1012 | ||
bbe63281 LP |
1013 | void log_show_color(bool b) { |
1014 | show_color = b; | |
1015 | } | |
1016 | ||
b1e90ec5 ZJS |
1017 | bool log_get_show_color(void) { |
1018 | return show_color; | |
1019 | } | |
1020 | ||
bbe63281 LP |
1021 | void log_show_location(bool b) { |
1022 | show_location = b; | |
1023 | } | |
1024 | ||
b1e90ec5 ZJS |
1025 | bool log_get_show_location(void) { |
1026 | return show_location; | |
1027 | } | |
1028 | ||
bbe63281 LP |
1029 | int log_show_color_from_string(const char *e) { |
1030 | int t; | |
1031 | ||
5ba081b0 LP |
1032 | t = parse_boolean(e); |
1033 | if (t < 0) | |
1034 | return t; | |
bbe63281 LP |
1035 | |
1036 | log_show_color(t); | |
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | int log_show_location_from_string(const char *e) { | |
1041 | int t; | |
1042 | ||
5ba081b0 LP |
1043 | t = parse_boolean(e); |
1044 | if (t < 0) | |
1045 | return t; | |
bbe63281 LP |
1046 | |
1047 | log_show_location(t); | |
1048 | return 0; | |
1049 | } | |
1050 | ||
81270860 | 1051 | bool log_on_console(void) { |
aca83a53 LP |
1052 | if (log_target == LOG_TARGET_CONSOLE || |
1053 | log_target == LOG_TARGET_CONSOLE_PREFIXED) | |
81270860 LP |
1054 | return true; |
1055 | ||
1056 | return syslog_fd < 0 && kmsg_fd < 0 && journal_fd < 0; | |
1057 | } | |
1058 | ||
2c5859af | 1059 | static const char *const log_target_table[_LOG_TARGET_MAX] = { |
34f0e866 | 1060 | [LOG_TARGET_CONSOLE] = "console", |
aca83a53 | 1061 | [LOG_TARGET_CONSOLE_PREFIXED] = "console-prefixed", |
34f0e866 | 1062 | [LOG_TARGET_KMSG] = "kmsg", |
5ba081b0 LP |
1063 | [LOG_TARGET_JOURNAL] = "journal", |
1064 | [LOG_TARGET_JOURNAL_OR_KMSG] = "journal-or-kmsg", | |
1065 | [LOG_TARGET_SYSLOG] = "syslog", | |
843d2643 | 1066 | [LOG_TARGET_SYSLOG_OR_KMSG] = "syslog-or-kmsg", |
5ba081b0 | 1067 | [LOG_TARGET_AUTO] = "auto", |
a6903061 | 1068 | [LOG_TARGET_SAFE] = "safe", |
5ba081b0 | 1069 | [LOG_TARGET_NULL] = "null" |
34f0e866 LP |
1070 | }; |
1071 | ||
1072 | DEFINE_STRING_TABLE_LOOKUP(log_target, LogTarget); | |
4daf54a8 ZJS |
1073 | |
1074 | void log_received_signal(int level, const struct signalfd_siginfo *si) { | |
1075 | if (si->ssi_pid > 0) { | |
1076 | _cleanup_free_ char *p = NULL; | |
1077 | ||
1078 | get_process_comm(si->ssi_pid, &p); | |
1079 | ||
1080 | log_full(level, | |
1fa2f38f | 1081 | "Received SIG%s from PID %"PRIu32" (%s).", |
4daf54a8 ZJS |
1082 | signal_to_string(si->ssi_signo), |
1083 | si->ssi_pid, strna(p)); | |
1084 | } else | |
1085 | log_full(level, | |
1086 | "Received SIG%s.", | |
1087 | signal_to_string(si->ssi_signo)); | |
1088 | ||
1089 | } | |
c1dc6153 LP |
1090 | |
1091 | void log_set_upgrade_syslog_to_journal(bool b) { | |
1092 | upgrade_syslog_to_journal = b; | |
1093 | } | |
158350e8 LP |
1094 | |
1095 | int log_syntax_internal( | |
1096 | const char *unit, | |
1097 | int level, | |
1098 | const char *config_file, | |
1099 | unsigned config_line, | |
1100 | int error, | |
1101 | const char *file, | |
1102 | int line, | |
1103 | const char *func, | |
1104 | const char *format, ...) { | |
1105 | ||
1106 | PROTECT_ERRNO; | |
1107 | char buffer[LINE_MAX]; | |
1108 | int r; | |
1109 | va_list ap; | |
1110 | ||
1111 | if (error < 0) | |
1112 | error = -error; | |
1113 | ||
1114 | if (_likely_(LOG_PRI(level) > log_max_level)) | |
1115 | return -error; | |
1116 | ||
1117 | if (log_target == LOG_TARGET_NULL) | |
1118 | return -error; | |
1119 | ||
1120 | if (error != 0) | |
1121 | errno = error; | |
1122 | ||
1123 | va_start(ap, format); | |
1124 | vsnprintf(buffer, sizeof(buffer), format, ap); | |
1125 | va_end(ap); | |
1126 | ||
1127 | if (unit) | |
1128 | r = log_struct_internal( | |
1129 | level, error, | |
1130 | file, line, func, | |
1131 | getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit, | |
1132 | LOG_MESSAGE_ID(SD_MESSAGE_INVALID_CONFIGURATION), | |
1133 | "CONFIG_FILE=%s", config_file, | |
1134 | "CONFIG_LINE=%u", config_line, | |
1135 | LOG_MESSAGE("[%s:%u] %s", config_file, config_line, buffer), | |
1136 | NULL); | |
1137 | else | |
1138 | r = log_struct_internal( | |
1139 | level, error, | |
1140 | file, line, func, | |
1141 | LOG_MESSAGE_ID(SD_MESSAGE_INVALID_CONFIGURATION), | |
1142 | "CONFIG_FILE=%s", config_file, | |
1143 | "CONFIG_LINE=%u", config_line, | |
1144 | LOG_MESSAGE("[%s:%u] %s", config_file, config_line, buffer), | |
1145 | NULL); | |
1146 | ||
1147 | return r; | |
1148 | } |