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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> |
11c3a366 TA |
24 | #include <inttypes.h> |
25 | #include <limits.h> | |
07630cea LP |
26 | #include <stdarg.h> |
27 | #include <stddef.h> | |
28 | #include <stdio.h> | |
11c3a366 TA |
29 | #include <string.h> |
30 | #include <sys/signalfd.h> | |
16801e90 | 31 | #include <sys/socket.h> |
11c3a366 TA |
32 | #include <sys/time.h> |
33 | #include <sys/uio.h> | |
16801e90 | 34 | #include <sys/un.h> |
11c3a366 | 35 | #include <time.h> |
07630cea | 36 | #include <unistd.h> |
5899f3b7 | 37 | |
158350e8 | 38 | #include "sd-messages.h" |
07630cea | 39 | |
b5efdb8a | 40 | #include "alloc-util.h" |
3ffd4af2 | 41 | #include "fd-util.h" |
6482f626 | 42 | #include "formats-util.h" |
afc5dbf3 | 43 | #include "io-util.h" |
3ffd4af2 | 44 | #include "log.h" |
07630cea LP |
45 | #include "macro.h" |
46 | #include "missing.h" | |
4e731273 LP |
47 | #include "parse-util.h" |
48 | #include "proc-cmdline.h" | |
0b452006 | 49 | #include "process-util.h" |
24882e06 | 50 | #include "signal-util.h" |
07630cea | 51 | #include "socket-util.h" |
15a5e950 | 52 | #include "stdio-util.h" |
8b43440b | 53 | #include "string-table.h" |
07630cea | 54 | #include "string-util.h" |
7ccbd1ae | 55 | #include "syslog-util.h" |
07630cea | 56 | #include "terminal-util.h" |
93cc7779 | 57 | #include "time-util.h" |
07630cea | 58 | #include "util.h" |
5899f3b7 | 59 | |
bb99a35a LP |
60 | #define SNDBUF_SIZE (8*1024*1024) |
61 | ||
16801e90 | 62 | static LogTarget log_target = LOG_TARGET_CONSOLE; |
bbe63281 | 63 | static int log_max_level = LOG_INFO; |
3eff4208 | 64 | static int log_facility = LOG_DAEMON; |
16801e90 | 65 | |
843d2643 | 66 | static int console_fd = STDERR_FILENO; |
16801e90 LP |
67 | static int syslog_fd = -1; |
68 | static int kmsg_fd = -1; | |
5ba081b0 | 69 | static int journal_fd = -1; |
16801e90 | 70 | |
c31e1495 LP |
71 | static bool syslog_is_stream = false; |
72 | ||
bbe63281 LP |
73 | static bool show_color = false; |
74 | static bool show_location = false; | |
75 | ||
c1dc6153 LP |
76 | static bool upgrade_syslog_to_journal = false; |
77 | ||
35b8ca3a | 78 | /* Akin to glibc's __abort_msg; which is private and we hence cannot |
185986c6 LP |
79 | * use here. */ |
80 | static char *log_abort_msg = NULL; | |
81 | ||
843d2643 LP |
82 | void log_close_console(void) { |
83 | ||
84 | if (console_fd < 0) | |
85 | return; | |
16801e90 | 86 | |
c8513d54 LP |
87 | if (getpid() == 1) { |
88 | if (console_fd >= 3) | |
03e334a1 | 89 | safe_close(console_fd); |
c8513d54 | 90 | |
843d2643 | 91 | console_fd = -1; |
16801e90 LP |
92 | } |
93 | } | |
94 | ||
843d2643 | 95 | static int log_open_console(void) { |
16801e90 | 96 | |
843d2643 | 97 | if (console_fd >= 0) |
16801e90 | 98 | return 0; |
843d2643 LP |
99 | |
100 | if (getpid() == 1) { | |
5ba081b0 | 101 | console_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
cd15c418 | 102 | if (console_fd < 0) |
843d2643 | 103 | return console_fd; |
843d2643 LP |
104 | } else |
105 | console_fd = STDERR_FILENO; | |
106 | ||
107 | return 0; | |
108 | } | |
109 | ||
110 | void log_close_kmsg(void) { | |
03e334a1 | 111 | kmsg_fd = safe_close(kmsg_fd); |
843d2643 LP |
112 | } |
113 | ||
114 | static int log_open_kmsg(void) { | |
16801e90 LP |
115 | |
116 | if (kmsg_fd >= 0) | |
117 | return 0; | |
118 | ||
674f8283 | 119 | kmsg_fd = open("/dev/kmsg", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
cd15c418 | 120 | if (kmsg_fd < 0) |
16801e90 | 121 | return -errno; |
0dae83f9 | 122 | |
16801e90 LP |
123 | return 0; |
124 | } | |
125 | ||
126 | void log_close_syslog(void) { | |
03e334a1 | 127 | syslog_fd = safe_close(syslog_fd); |
16801e90 LP |
128 | } |
129 | ||
c31e1495 | 130 | static int create_log_socket(int type) { |
8b18fdc1 | 131 | struct timeval tv; |
95066a90 | 132 | int fd; |
c31e1495 | 133 | |
8b18fdc1 | 134 | fd = socket(AF_UNIX, type|SOCK_CLOEXEC, 0); |
5ba081b0 | 135 | if (fd < 0) |
c31e1495 LP |
136 | return -errno; |
137 | ||
bb99a35a LP |
138 | fd_inc_sndbuf(fd, SNDBUF_SIZE); |
139 | ||
8b18fdc1 LP |
140 | /* We need a blocking fd here since we'd otherwise lose |
141 | messages way too early. However, let's not hang forever in the | |
142 | unlikely case of a deadlock. */ | |
4d89874a ZJS |
143 | if (getpid() == 1) |
144 | timeval_store(&tv, 10 * USEC_PER_MSEC); | |
145 | else | |
146 | timeval_store(&tv, 10 * USEC_PER_SEC); | |
086891e5 | 147 | (void) setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv)); |
8b18fdc1 | 148 | |
c31e1495 LP |
149 | return fd; |
150 | } | |
151 | ||
843d2643 | 152 | static int log_open_syslog(void) { |
95066a90 LP |
153 | |
154 | static const union sockaddr_union sa = { | |
b92bea5d ZJS |
155 | .un.sun_family = AF_UNIX, |
156 | .un.sun_path = "/dev/log", | |
157 | }; | |
16801e90 | 158 | |
95066a90 LP |
159 | int r; |
160 | ||
16801e90 LP |
161 | if (syslog_fd >= 0) |
162 | return 0; | |
163 | ||
5ba081b0 LP |
164 | syslog_fd = create_log_socket(SOCK_DGRAM); |
165 | if (syslog_fd < 0) { | |
166 | r = syslog_fd; | |
843d2643 | 167 | goto fail; |
16801e90 LP |
168 | } |
169 | ||
3338b959 | 170 | if (connect(syslog_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) { |
03e334a1 | 171 | safe_close(syslog_fd); |
c31e1495 LP |
172 | |
173 | /* Some legacy syslog systems still use stream | |
174 | * sockets. They really shouldn't. But what can we | |
175 | * do... */ | |
5ba081b0 LP |
176 | syslog_fd = create_log_socket(SOCK_STREAM); |
177 | if (syslog_fd < 0) { | |
178 | r = syslog_fd; | |
c31e1495 LP |
179 | goto fail; |
180 | } | |
181 | ||
3338b959 | 182 | if (connect(syslog_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) { |
c31e1495 LP |
183 | r = -errno; |
184 | goto fail; | |
185 | } | |
186 | ||
187 | syslog_is_stream = true; | |
188 | } else | |
189 | syslog_is_stream = false; | |
190 | ||
16801e90 | 191 | return 0; |
843d2643 LP |
192 | |
193 | fail: | |
194 | log_close_syslog(); | |
843d2643 LP |
195 | return r; |
196 | } | |
197 | ||
5ba081b0 | 198 | void log_close_journal(void) { |
03e334a1 | 199 | journal_fd = safe_close(journal_fd); |
5ba081b0 LP |
200 | } |
201 | ||
202 | static int log_open_journal(void) { | |
95066a90 LP |
203 | |
204 | static const union sockaddr_union sa = { | |
b92bea5d ZJS |
205 | .un.sun_family = AF_UNIX, |
206 | .un.sun_path = "/run/systemd/journal/socket", | |
207 | }; | |
95066a90 | 208 | |
5ba081b0 LP |
209 | int r; |
210 | ||
211 | if (journal_fd >= 0) | |
212 | return 0; | |
213 | ||
214 | journal_fd = create_log_socket(SOCK_DGRAM); | |
215 | if (journal_fd < 0) { | |
216 | r = journal_fd; | |
217 | goto fail; | |
218 | } | |
219 | ||
5ba081b0 LP |
220 | if (connect(journal_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0) { |
221 | r = -errno; | |
222 | goto fail; | |
223 | } | |
224 | ||
5ba081b0 LP |
225 | return 0; |
226 | ||
227 | fail: | |
228 | log_close_journal(); | |
5ba081b0 LP |
229 | return r; |
230 | } | |
231 | ||
843d2643 LP |
232 | int log_open(void) { |
233 | int r; | |
234 | ||
235 | /* If we don't use the console we close it here, to not get | |
236 | * killed by SAK. If we don't use syslog we close it here so | |
237 | * that we are not confused by somebody deleting the socket in | |
238 | * the fs. If we don't use /dev/kmsg we still keep it open, | |
239 | * because there is no reason to close it. */ | |
240 | ||
9fae33d2 | 241 | if (log_target == LOG_TARGET_NULL) { |
5ba081b0 | 242 | log_close_journal(); |
9fae33d2 LP |
243 | log_close_syslog(); |
244 | log_close_console(); | |
245 | return 0; | |
246 | } | |
247 | ||
a6903061 | 248 | if ((log_target != LOG_TARGET_AUTO && log_target != LOG_TARGET_SAFE) || |
bb7df0da | 249 | getpid() == 1 || |
f41c094c | 250 | isatty(STDERR_FILENO) <= 0) { |
bb7df0da LP |
251 | |
252 | if (log_target == LOG_TARGET_AUTO || | |
5ba081b0 LP |
253 | log_target == LOG_TARGET_JOURNAL_OR_KMSG || |
254 | log_target == LOG_TARGET_JOURNAL) { | |
255 | r = log_open_journal(); | |
256 | if (r >= 0) { | |
257 | log_close_syslog(); | |
bb7df0da LP |
258 | log_close_console(); |
259 | return r; | |
260 | } | |
5ba081b0 LP |
261 | } |
262 | ||
263 | if (log_target == LOG_TARGET_SYSLOG_OR_KMSG || | |
264 | log_target == LOG_TARGET_SYSLOG) { | |
265 | r = log_open_syslog(); | |
266 | if (r >= 0) { | |
267 | log_close_journal(); | |
268 | log_close_console(); | |
269 | return r; | |
270 | } | |
271 | } | |
272 | ||
bb7df0da | 273 | if (log_target == LOG_TARGET_AUTO || |
a6903061 | 274 | log_target == LOG_TARGET_SAFE || |
5ba081b0 | 275 | log_target == LOG_TARGET_JOURNAL_OR_KMSG || |
bb7df0da | 276 | log_target == LOG_TARGET_SYSLOG_OR_KMSG || |
5ba081b0 LP |
277 | log_target == LOG_TARGET_KMSG) { |
278 | r = log_open_kmsg(); | |
279 | if (r >= 0) { | |
280 | log_close_journal(); | |
bb7df0da LP |
281 | log_close_syslog(); |
282 | log_close_console(); | |
283 | return r; | |
284 | } | |
5ba081b0 | 285 | } |
bb7df0da | 286 | } |
843d2643 | 287 | |
5ba081b0 | 288 | log_close_journal(); |
843d2643 | 289 | log_close_syslog(); |
dcdf86bb | 290 | |
843d2643 | 291 | return log_open_console(); |
16801e90 LP |
292 | } |
293 | ||
294 | void log_set_target(LogTarget target) { | |
295 | assert(target >= 0); | |
296 | assert(target < _LOG_TARGET_MAX); | |
297 | ||
c1dc6153 LP |
298 | if (upgrade_syslog_to_journal) { |
299 | if (target == LOG_TARGET_SYSLOG) | |
300 | target = LOG_TARGET_JOURNAL; | |
301 | else if (target == LOG_TARGET_SYSLOG_OR_KMSG) | |
302 | target = LOG_TARGET_JOURNAL_OR_KMSG; | |
303 | } | |
304 | ||
16801e90 LP |
305 | log_target = target; |
306 | } | |
307 | ||
871e5809 | 308 | void log_close(void) { |
5ba081b0 | 309 | log_close_journal(); |
871e5809 | 310 | log_close_syslog(); |
5ba081b0 LP |
311 | log_close_kmsg(); |
312 | log_close_console(); | |
871e5809 LP |
313 | } |
314 | ||
4d8a7798 | 315 | void log_forget_fds(void) { |
5ba081b0 | 316 | console_fd = kmsg_fd = syslog_fd = journal_fd = -1; |
4d8a7798 MS |
317 | } |
318 | ||
16801e90 LP |
319 | void log_set_max_level(int level) { |
320 | assert((level & LOG_PRIMASK) == level); | |
321 | ||
322 | log_max_level = level; | |
323 | } | |
324 | ||
3eff4208 LP |
325 | void log_set_facility(int facility) { |
326 | log_facility = facility; | |
327 | } | |
328 | ||
843d2643 | 329 | static int write_to_console( |
20c03b7b | 330 | int level, |
086891e5 | 331 | int error, |
95066a90 | 332 | const char *file, |
20c03b7b LP |
333 | int line, |
334 | const char *func, | |
086891e5 | 335 | const char *object_field, |
fdf9f9bb | 336 | const char *object, |
20c03b7b | 337 | const char *buffer) { |
5899f3b7 | 338 | |
aca83a53 LP |
339 | char location[64], prefix[1 + DECIMAL_STR_MAX(int) + 2]; |
340 | struct iovec iovec[6] = {}; | |
843d2643 LP |
341 | unsigned n = 0; |
342 | bool highlight; | |
5899f3b7 | 343 | |
843d2643 LP |
344 | if (console_fd < 0) |
345 | return 0; | |
346 | ||
aca83a53 LP |
347 | if (log_target == LOG_TARGET_CONSOLE_PREFIXED) { |
348 | sprintf(prefix, "<%i>", level); | |
349 | IOVEC_SET_STRING(iovec[n++], prefix); | |
350 | } | |
351 | ||
bbe63281 | 352 | highlight = LOG_PRI(level) <= LOG_ERR && show_color; |
843d2643 | 353 | |
674f8283 | 354 | if (show_location) { |
d054f0a4 | 355 | xsprintf(location, "(%s:%i) ", file, line); |
bbe63281 | 356 | IOVEC_SET_STRING(iovec[n++], location); |
674f8283 LP |
357 | } |
358 | ||
843d2643 | 359 | if (highlight) |
1fc464f6 | 360 | IOVEC_SET_STRING(iovec[n++], ANSI_HIGHLIGHT_RED); |
843d2643 LP |
361 | IOVEC_SET_STRING(iovec[n++], buffer); |
362 | if (highlight) | |
1fc464f6 | 363 | IOVEC_SET_STRING(iovec[n++], ANSI_NORMAL); |
843d2643 LP |
364 | IOVEC_SET_STRING(iovec[n++], "\n"); |
365 | ||
0e6eaa2d LP |
366 | if (writev(console_fd, iovec, n) < 0) { |
367 | ||
368 | if (errno == EIO && getpid() == 1) { | |
369 | ||
370 | /* If somebody tried to kick us from our | |
371 | * console tty (via vhangup() or suchlike), | |
372 | * try to reconnect */ | |
373 | ||
374 | log_close_console(); | |
375 | log_open_console(); | |
376 | ||
377 | if (console_fd < 0) | |
378 | return 0; | |
379 | ||
380 | if (writev(console_fd, iovec, n) < 0) | |
381 | return -errno; | |
382 | } else | |
383 | return -errno; | |
384 | } | |
5899f3b7 | 385 | |
843d2643 | 386 | return 1; |
16801e90 | 387 | } |
5899f3b7 | 388 | |
16801e90 | 389 | static int write_to_syslog( |
086891e5 LP |
390 | int level, |
391 | int error, | |
95066a90 | 392 | const char *file, |
086891e5 LP |
393 | int line, |
394 | const char *func, | |
395 | const char *object_field, | |
396 | const char *object, | |
397 | const char *buffer) { | |
16801e90 | 398 | |
5ffa8c81 ZJS |
399 | char header_priority[2 + DECIMAL_STR_MAX(int) + 1], |
400 | header_time[64], | |
401 | header_pid[4 + DECIMAL_STR_MAX(pid_t) + 1]; | |
b92bea5d ZJS |
402 | struct iovec iovec[5] = {}; |
403 | struct msghdr msghdr = { | |
404 | .msg_iov = iovec, | |
405 | .msg_iovlen = ELEMENTSOF(iovec), | |
406 | }; | |
16801e90 LP |
407 | time_t t; |
408 | struct tm *tm; | |
409 | ||
410 | if (syslog_fd < 0) | |
843d2643 | 411 | return 0; |
16801e90 | 412 | |
5ffa8c81 | 413 | xsprintf(header_priority, "<%i>", level); |
16801e90 LP |
414 | |
415 | t = (time_t) (now(CLOCK_REALTIME) / USEC_PER_SEC); | |
fdf9f9bb ZJS |
416 | tm = localtime(&t); |
417 | if (!tm) | |
16801e90 LP |
418 | return -EINVAL; |
419 | ||
420 | if (strftime(header_time, sizeof(header_time), "%h %e %T ", tm) <= 0) | |
421 | return -EINVAL; | |
422 | ||
5ffa8c81 | 423 | xsprintf(header_pid, "["PID_FMT"]: ", getpid()); |
16801e90 | 424 | |
16801e90 LP |
425 | IOVEC_SET_STRING(iovec[0], header_priority); |
426 | IOVEC_SET_STRING(iovec[1], header_time); | |
5b6319dc | 427 | IOVEC_SET_STRING(iovec[2], program_invocation_short_name); |
16801e90 LP |
428 | IOVEC_SET_STRING(iovec[3], header_pid); |
429 | IOVEC_SET_STRING(iovec[4], buffer); | |
430 | ||
c899f8c6 | 431 | /* When using syslog via SOCK_STREAM separate the messages by NUL chars */ |
c31e1495 LP |
432 | if (syslog_is_stream) |
433 | iovec[4].iov_len++; | |
434 | ||
c31e1495 LP |
435 | for (;;) { |
436 | ssize_t n; | |
437 | ||
8f7f7a1b MS |
438 | n = sendmsg(syslog_fd, &msghdr, MSG_NOSIGNAL); |
439 | if (n < 0) | |
c31e1495 LP |
440 | return -errno; |
441 | ||
442 | if (!syslog_is_stream || | |
443 | (size_t) n >= IOVEC_TOTAL_SIZE(iovec, ELEMENTSOF(iovec))) | |
444 | break; | |
445 | ||
446 | IOVEC_INCREMENT(iovec, ELEMENTSOF(iovec), n); | |
447 | } | |
16801e90 | 448 | |
843d2643 | 449 | return 1; |
16801e90 LP |
450 | } |
451 | ||
452 | static int write_to_kmsg( | |
086891e5 LP |
453 | int level, |
454 | int error, | |
bcf5c276 | 455 | const char *file, |
086891e5 LP |
456 | int line, |
457 | const char *func, | |
458 | const char *object_field, | |
459 | const char *object, | |
460 | const char *buffer) { | |
16801e90 | 461 | |
5ffa8c81 ZJS |
462 | char header_priority[2 + DECIMAL_STR_MAX(int) + 1], |
463 | header_pid[4 + DECIMAL_STR_MAX(pid_t) + 1]; | |
b92bea5d | 464 | struct iovec iovec[5] = {}; |
16801e90 LP |
465 | |
466 | if (kmsg_fd < 0) | |
843d2643 | 467 | return 0; |
16801e90 | 468 | |
5ffa8c81 ZJS |
469 | xsprintf(header_priority, "<%i>", level); |
470 | xsprintf(header_pid, "["PID_FMT"]: ", getpid()); | |
16801e90 | 471 | |
16801e90 | 472 | IOVEC_SET_STRING(iovec[0], header_priority); |
5b6319dc | 473 | IOVEC_SET_STRING(iovec[1], program_invocation_short_name); |
16801e90 LP |
474 | IOVEC_SET_STRING(iovec[2], header_pid); |
475 | IOVEC_SET_STRING(iovec[3], buffer); | |
843d2643 | 476 | IOVEC_SET_STRING(iovec[4], "\n"); |
16801e90 LP |
477 | |
478 | if (writev(kmsg_fd, iovec, ELEMENTSOF(iovec)) < 0) | |
479 | return -errno; | |
480 | ||
843d2643 | 481 | return 1; |
16801e90 LP |
482 | } |
483 | ||
086891e5 LP |
484 | static int log_do_header( |
485 | char *header, | |
486 | size_t size, | |
487 | int level, | |
488 | int error, | |
489 | const char *file, int line, const char *func, | |
490 | const char *object_field, const char *object) { | |
491 | ||
41a79f10 | 492 | snprintf(header, size, |
5ba081b0 | 493 | "PRIORITY=%i\n" |
3eff4208 | 494 | "SYSLOG_FACILITY=%i\n" |
086891e5 | 495 | "%s%s%s" |
e429981b | 496 | "%s%.*i%s" |
086891e5 LP |
497 | "%s%s%s" |
498 | "%s%.*i%s" | |
499 | "%s%s%s" | |
41a79f10 | 500 | "SYSLOG_IDENTIFIER=%s\n", |
5ba081b0 | 501 | LOG_PRI(level), |
3eff4208 | 502 | LOG_FAC(level), |
086891e5 LP |
503 | isempty(file) ? "" : "CODE_FILE=", |
504 | isempty(file) ? "" : file, | |
505 | isempty(file) ? "" : "\n", | |
e429981b ZJS |
506 | line ? "CODE_LINE=" : "", |
507 | line ? 1 : 0, line, /* %.0d means no output too, special case for 0 */ | |
508 | line ? "\n" : "", | |
086891e5 LP |
509 | isempty(func) ? "" : "CODE_FUNCTION=", |
510 | isempty(func) ? "" : func, | |
511 | isempty(func) ? "" : "\n", | |
512 | error ? "ERRNO=" : "", | |
513 | error ? 1 : 0, error, | |
514 | error ? "\n" : "", | |
515 | isempty(object) ? "" : object_field, | |
516 | isempty(object) ? "" : object, | |
517 | isempty(object) ? "" : "\n", | |
d29b05a4 | 518 | program_invocation_short_name); |
086891e5 | 519 | |
41a79f10 ZJS |
520 | return 0; |
521 | } | |
5ba081b0 | 522 | |
41a79f10 | 523 | static int write_to_journal( |
086891e5 LP |
524 | int level, |
525 | int error, | |
bcf5c276 | 526 | const char *file, |
086891e5 LP |
527 | int line, |
528 | const char *func, | |
529 | const char *object_field, | |
530 | const char *object, | |
531 | const char *buffer) { | |
41a79f10 ZJS |
532 | |
533 | char header[LINE_MAX]; | |
b92bea5d ZJS |
534 | struct iovec iovec[4] = {}; |
535 | struct msghdr mh = {}; | |
41a79f10 ZJS |
536 | |
537 | if (journal_fd < 0) | |
538 | return 0; | |
539 | ||
086891e5 | 540 | log_do_header(header, sizeof(header), level, error, file, line, func, object_field, object); |
5ba081b0 | 541 | |
5ba081b0 | 542 | IOVEC_SET_STRING(iovec[0], header); |
41a79f10 ZJS |
543 | IOVEC_SET_STRING(iovec[1], "MESSAGE="); |
544 | IOVEC_SET_STRING(iovec[2], buffer); | |
545 | IOVEC_SET_STRING(iovec[3], "\n"); | |
5ba081b0 | 546 | |
5ba081b0 LP |
547 | mh.msg_iov = iovec; |
548 | mh.msg_iovlen = ELEMENTSOF(iovec); | |
549 | ||
550 | if (sendmsg(journal_fd, &mh, MSG_NOSIGNAL) < 0) | |
551 | return -errno; | |
552 | ||
553 | return 1; | |
554 | } | |
555 | ||
843d2643 | 556 | static int log_dispatch( |
086891e5 LP |
557 | int level, |
558 | int error, | |
95066a90 | 559 | const char *file, |
086891e5 LP |
560 | int line, |
561 | const char *func, | |
562 | const char *object_field, | |
563 | const char *object, | |
564 | char *buffer) { | |
843d2643 | 565 | |
bf371116 | 566 | assert(buffer); |
843d2643 | 567 | |
9fae33d2 | 568 | if (log_target == LOG_TARGET_NULL) |
bf371116 | 569 | return -error; |
9fae33d2 | 570 | |
29db5834 | 571 | /* Patch in LOG_DAEMON facility if necessary */ |
7d76f312 | 572 | if ((level & LOG_FACMASK) == 0) |
3eff4208 | 573 | level = log_facility | LOG_PRI(level); |
29db5834 | 574 | |
8f16f51d LP |
575 | if (error < 0) |
576 | error = -error; | |
577 | ||
9726b29e LP |
578 | do { |
579 | char *e; | |
9499b235 | 580 | int k = 0; |
843d2643 | 581 | |
9726b29e | 582 | buffer += strspn(buffer, NEWLINE); |
843d2643 | 583 | |
9726b29e LP |
584 | if (buffer[0] == 0) |
585 | break; | |
843d2643 | 586 | |
9726b29e LP |
587 | if ((e = strpbrk(buffer, NEWLINE))) |
588 | *(e++) = 0; | |
843d2643 | 589 | |
bb7df0da | 590 | if (log_target == LOG_TARGET_AUTO || |
5ba081b0 LP |
591 | log_target == LOG_TARGET_JOURNAL_OR_KMSG || |
592 | log_target == LOG_TARGET_JOURNAL) { | |
593 | ||
086891e5 | 594 | k = write_to_journal(level, error, file, line, func, object_field, object, buffer); |
4e7bc3f3 LP |
595 | if (k < 0) { |
596 | if (k != -EAGAIN) | |
5ba081b0 LP |
597 | log_close_journal(); |
598 | log_open_kmsg(); | |
bf371116 | 599 | } |
5ba081b0 LP |
600 | } |
601 | ||
602 | if (log_target == LOG_TARGET_SYSLOG_OR_KMSG || | |
9726b29e LP |
603 | log_target == LOG_TARGET_SYSLOG) { |
604 | ||
086891e5 | 605 | k = write_to_syslog(level, error, file, line, func, object_field, object, buffer); |
4e7bc3f3 LP |
606 | if (k < 0) { |
607 | if (k != -EAGAIN) | |
8f7f7a1b | 608 | log_close_syslog(); |
9726b29e | 609 | log_open_kmsg(); |
bf371116 | 610 | } |
9726b29e LP |
611 | } |
612 | ||
9499b235 | 613 | if (k <= 0 && |
bb7df0da | 614 | (log_target == LOG_TARGET_AUTO || |
a6903061 | 615 | log_target == LOG_TARGET_SAFE || |
bb7df0da | 616 | log_target == LOG_TARGET_SYSLOG_OR_KMSG || |
678d485a | 617 | log_target == LOG_TARGET_JOURNAL_OR_KMSG || |
9499b235 | 618 | log_target == LOG_TARGET_KMSG)) { |
9726b29e | 619 | |
086891e5 | 620 | k = write_to_kmsg(level, error, file, line, func, object_field, object, buffer); |
4e7bc3f3 LP |
621 | if (k < 0) { |
622 | log_close_kmsg(); | |
9726b29e | 623 | log_open_console(); |
bf371116 | 624 | } |
9726b29e LP |
625 | } |
626 | ||
bf371116 LP |
627 | if (k <= 0) |
628 | (void) write_to_console(level, error, file, line, func, object_field, object, buffer); | |
9726b29e LP |
629 | |
630 | buffer = e; | |
631 | } while (buffer); | |
632 | ||
bf371116 | 633 | return -error; |
843d2643 LP |
634 | } |
635 | ||
2149e37c LP |
636 | int log_dump_internal( |
637 | int level, | |
086891e5 | 638 | int error, |
bf371116 | 639 | const char *file, |
2149e37c LP |
640 | int line, |
641 | const char *func, | |
642 | char *buffer) { | |
643 | ||
5c0aa72a | 644 | PROTECT_ERRNO; |
2149e37c LP |
645 | |
646 | /* This modifies the buffer... */ | |
647 | ||
bf371116 LP |
648 | if (error < 0) |
649 | error = -error; | |
650 | ||
2149e37c | 651 | if (_likely_(LOG_PRI(level) > log_max_level)) |
bf371116 | 652 | return -error; |
2149e37c | 653 | |
086891e5 | 654 | return log_dispatch(level, error, file, line, func, NULL, NULL, buffer); |
2149e37c LP |
655 | } |
656 | ||
79008bdd | 657 | int log_internalv( |
086891e5 LP |
658 | int level, |
659 | int error, | |
bcf5c276 | 660 | const char *file, |
086891e5 LP |
661 | int line, |
662 | const char *func, | |
663 | const char *format, | |
664 | va_list ap) { | |
16801e90 | 665 | |
5c0aa72a | 666 | PROTECT_ERRNO; |
addab137 | 667 | char buffer[LINE_MAX]; |
16801e90 | 668 | |
bf371116 LP |
669 | if (error < 0) |
670 | error = -error; | |
671 | ||
93a46b0b | 672 | if (_likely_(LOG_PRI(level) > log_max_level)) |
bf371116 | 673 | return -error; |
16801e90 | 674 | |
086891e5 LP |
675 | /* Make sure that %m maps to the specified error */ |
676 | if (error != 0) | |
bf371116 | 677 | errno = error; |
086891e5 | 678 | |
843d2643 | 679 | vsnprintf(buffer, sizeof(buffer), format, ap); |
843d2643 | 680 | |
086891e5 | 681 | return log_dispatch(level, error, file, line, func, NULL, NULL, buffer); |
185986c6 | 682 | } |
16801e90 | 683 | |
79008bdd | 684 | int log_internal( |
086891e5 LP |
685 | int level, |
686 | int error, | |
bcf5c276 | 687 | const char *file, |
086891e5 LP |
688 | int line, |
689 | const char *func, | |
690 | const char *format, ...) { | |
17a94911 | 691 | |
17a94911 | 692 | va_list ap; |
bf371116 | 693 | int r; |
17a94911 LP |
694 | |
695 | va_start(ap, format); | |
79008bdd | 696 | r = log_internalv(level, error, file, line, func, format, ap); |
17a94911 LP |
697 | va_end(ap); |
698 | ||
699 | return r; | |
700 | } | |
701 | ||
79008bdd | 702 | int log_object_internalv( |
086891e5 LP |
703 | int level, |
704 | int error, | |
bcf5c276 | 705 | const char *file, |
086891e5 LP |
706 | int line, |
707 | const char *func, | |
708 | const char *object_field, | |
709 | const char *object, | |
710 | const char *format, | |
711 | va_list ap) { | |
fdf9f9bb | 712 | |
5c0aa72a | 713 | PROTECT_ERRNO; |
f2341e0a LP |
714 | char *buffer, *b; |
715 | size_t l; | |
fdf9f9bb | 716 | |
bf371116 LP |
717 | if (error < 0) |
718 | error = -error; | |
719 | ||
fdf9f9bb | 720 | if (_likely_(LOG_PRI(level) > log_max_level)) |
bf371116 | 721 | return -error; |
fdf9f9bb | 722 | |
086891e5 LP |
723 | /* Make sure that %m maps to the specified error */ |
724 | if (error != 0) | |
bf371116 | 725 | errno = error; |
086891e5 | 726 | |
f2341e0a LP |
727 | /* Prepend the object name before the message */ |
728 | if (object) { | |
729 | size_t n; | |
730 | ||
731 | n = strlen(object); | |
732 | l = n + 2 + LINE_MAX; | |
733 | ||
734 | buffer = newa(char, l); | |
735 | b = stpcpy(stpcpy(buffer, object), ": "); | |
736 | } else { | |
737 | l = LINE_MAX; | |
738 | b = buffer = newa(char, l); | |
739 | } | |
740 | ||
741 | vsnprintf(b, l, format, ap); | |
fdf9f9bb | 742 | |
086891e5 | 743 | return log_dispatch(level, error, file, line, func, object_field, object, buffer); |
fdf9f9bb ZJS |
744 | } |
745 | ||
79008bdd | 746 | int log_object_internal( |
086891e5 LP |
747 | int level, |
748 | int error, | |
bcf5c276 | 749 | const char *file, |
086891e5 LP |
750 | int line, |
751 | const char *func, | |
752 | const char *object_field, | |
753 | const char *object, | |
754 | const char *format, ...) { | |
fdf9f9bb | 755 | |
fdf9f9bb | 756 | va_list ap; |
bf371116 | 757 | int r; |
fdf9f9bb ZJS |
758 | |
759 | va_start(ap, format); | |
79008bdd | 760 | r = log_object_internalv(level, error, file, line, func, object_field, object, format, ap); |
fdf9f9bb ZJS |
761 | va_end(ap); |
762 | ||
763 | return r; | |
764 | } | |
765 | ||
086891e5 LP |
766 | static void log_assert( |
767 | int level, | |
768 | const char *text, | |
769 | const char *file, | |
770 | int line, | |
771 | const char *func, | |
772 | const char *format) { | |
773 | ||
addab137 | 774 | static char buffer[LINE_MAX]; |
185986c6 | 775 | |
50f72bca ZJS |
776 | if (_likely_(LOG_PRI(level) > log_max_level)) |
777 | return; | |
778 | ||
bcfce235 | 779 | DISABLE_WARNING_FORMAT_NONLITERAL; |
d054f0a4 | 780 | xsprintf(buffer, format, text, file, line, func); |
bcfce235 | 781 | REENABLE_WARNING; |
185986c6 | 782 | |
185986c6 LP |
783 | log_abort_msg = buffer; |
784 | ||
086891e5 | 785 | log_dispatch(level, 0, file, line, func, NULL, NULL, buffer); |
5899f3b7 | 786 | } |
34f0e866 | 787 | |
919ce0b7 | 788 | noreturn void log_assert_failed(const char *text, const char *file, int line, const char *func) { |
80514f9c LP |
789 | log_assert(LOG_CRIT, text, file, line, func, "Assertion '%s' failed at %s:%u, function %s(). Aborting."); |
790 | abort(); | |
b7f33638 MS |
791 | } |
792 | ||
919ce0b7 | 793 | noreturn void log_assert_failed_unreachable(const char *text, const char *file, int line, const char *func) { |
80514f9c LP |
794 | log_assert(LOG_CRIT, text, file, line, func, "Code should not be reached '%s' at %s:%u, function %s(). Aborting."); |
795 | abort(); | |
796 | } | |
797 | ||
798 | void log_assert_failed_return(const char *text, const char *file, int line, const char *func) { | |
e5ca092c | 799 | PROTECT_ERRNO; |
80514f9c | 800 | log_assert(LOG_DEBUG, text, file, line, func, "Assertion '%s' failed at %s:%u, function %s(). Ignoring."); |
b7f33638 MS |
801 | } |
802 | ||
877d54e9 | 803 | int log_oom_internal(const char *file, int line, const char *func) { |
79008bdd | 804 | log_internal(LOG_ERR, ENOMEM, file, line, func, "Out of memory."); |
6dc1e7e0 MS |
805 | return -ENOMEM; |
806 | } | |
807 | ||
877d54e9 LP |
808 | int log_struct_internal( |
809 | int level, | |
086891e5 | 810 | int error, |
877d54e9 LP |
811 | const char *file, |
812 | int line, | |
813 | const char *func, | |
814 | const char *format, ...) { | |
815 | ||
bf371116 LP |
816 | char buf[LINE_MAX]; |
817 | bool found = false; | |
5c0aa72a | 818 | PROTECT_ERRNO; |
877d54e9 | 819 | va_list ap; |
bf371116 LP |
820 | |
821 | if (error < 0) | |
822 | error = -error; | |
877d54e9 LP |
823 | |
824 | if (_likely_(LOG_PRI(level) > log_max_level)) | |
bf371116 | 825 | return -error; |
877d54e9 LP |
826 | |
827 | if (log_target == LOG_TARGET_NULL) | |
bf371116 | 828 | return -error; |
877d54e9 LP |
829 | |
830 | if ((level & LOG_FACMASK) == 0) | |
831 | level = log_facility | LOG_PRI(level); | |
832 | ||
877d54e9 LP |
833 | if ((log_target == LOG_TARGET_AUTO || |
834 | log_target == LOG_TARGET_JOURNAL_OR_KMSG || | |
835 | log_target == LOG_TARGET_JOURNAL) && | |
836 | journal_fd >= 0) { | |
877d54e9 | 837 | char header[LINE_MAX]; |
b92bea5d | 838 | struct iovec iovec[17] = {}; |
877d54e9 | 839 | unsigned n = 0, i; |
543295ad ZJS |
840 | struct msghdr mh = { |
841 | .msg_iov = iovec, | |
842 | }; | |
41a79f10 | 843 | static const char nl = '\n'; |
bf371116 | 844 | bool fallback = false; |
877d54e9 LP |
845 | |
846 | /* If the journal is available do structured logging */ | |
086891e5 | 847 | log_do_header(header, sizeof(header), level, error, file, line, func, NULL, NULL); |
877d54e9 LP |
848 | IOVEC_SET_STRING(iovec[n++], header); |
849 | ||
850 | va_start(ap, format); | |
851 | while (format && n + 1 < ELEMENTSOF(iovec)) { | |
963ddb91 | 852 | va_list aq; |
bf371116 | 853 | char *m; |
877d54e9 | 854 | |
963ddb91 LP |
855 | /* We need to copy the va_list structure, |
856 | * since vasprintf() leaves it afterwards at | |
857 | * an undefined location */ | |
858 | ||
6357ac66 LP |
859 | if (error != 0) |
860 | errno = error; | |
861 | ||
963ddb91 | 862 | va_copy(aq, ap); |
bf371116 | 863 | if (vasprintf(&m, format, aq) < 0) { |
963ddb91 | 864 | va_end(aq); |
bf371116 | 865 | fallback = true; |
877d54e9 LP |
866 | goto finish; |
867 | } | |
963ddb91 LP |
868 | va_end(aq); |
869 | ||
870 | /* Now, jump enough ahead, so that we point to | |
871 | * the next format string */ | |
872 | VA_FORMAT_ADVANCE(format, ap); | |
877d54e9 | 873 | |
bf371116 | 874 | IOVEC_SET_STRING(iovec[n++], m); |
877d54e9 LP |
875 | |
876 | iovec[n].iov_base = (char*) &nl; | |
877 | iovec[n].iov_len = 1; | |
878 | n++; | |
879 | ||
880 | format = va_arg(ap, char *); | |
881 | } | |
877d54e9 | 882 | |
877d54e9 LP |
883 | mh.msg_iovlen = n; |
884 | ||
bf371116 | 885 | (void) sendmsg(journal_fd, &mh, MSG_NOSIGNAL); |
877d54e9 LP |
886 | |
887 | finish: | |
e98055de | 888 | va_end(ap); |
877d54e9 LP |
889 | for (i = 1; i < n; i += 2) |
890 | free(iovec[i].iov_base); | |
891 | ||
bf371116 LP |
892 | if (!fallback) |
893 | return -error; | |
894 | } | |
877d54e9 | 895 | |
bf371116 | 896 | /* Fallback if journal logging is not available or didn't work. */ |
6357ac66 | 897 | |
bf371116 LP |
898 | va_start(ap, format); |
899 | while (format) { | |
900 | va_list aq; | |
877d54e9 | 901 | |
bf371116 LP |
902 | if (error != 0) |
903 | errno = error; | |
877d54e9 | 904 | |
bf371116 LP |
905 | va_copy(aq, ap); |
906 | vsnprintf(buf, sizeof(buf), format, aq); | |
907 | va_end(aq); | |
963ddb91 | 908 | |
bf371116 LP |
909 | if (startswith(buf, "MESSAGE=")) { |
910 | found = true; | |
911 | break; | |
877d54e9 | 912 | } |
877d54e9 | 913 | |
bf371116 LP |
914 | VA_FORMAT_ADVANCE(format, ap); |
915 | ||
916 | format = va_arg(ap, char *); | |
877d54e9 | 917 | } |
bf371116 | 918 | va_end(ap); |
877d54e9 | 919 | |
bf371116 LP |
920 | if (!found) |
921 | return -error; | |
922 | ||
923 | return log_dispatch(level, error, file, line, func, NULL, NULL, buf + 8); | |
877d54e9 LP |
924 | } |
925 | ||
34f0e866 LP |
926 | int log_set_target_from_string(const char *e) { |
927 | LogTarget t; | |
928 | ||
5ba081b0 LP |
929 | t = log_target_from_string(e); |
930 | if (t < 0) | |
34f0e866 LP |
931 | return -EINVAL; |
932 | ||
933 | log_set_target(t); | |
934 | return 0; | |
935 | } | |
936 | ||
937 | int log_set_max_level_from_string(const char *e) { | |
938 | int t; | |
939 | ||
5ba081b0 LP |
940 | t = log_level_from_string(e); |
941 | if (t < 0) | |
737af734 | 942 | return -EINVAL; |
34f0e866 LP |
943 | |
944 | log_set_max_level(t); | |
945 | return 0; | |
946 | } | |
947 | ||
1de1c9c3 LP |
948 | static int parse_proc_cmdline_item(const char *key, const char *value) { |
949 | ||
950 | /* | |
951 | * The systemd.log_xyz= settings are parsed by all tools, and | |
952 | * so is "debug". | |
953 | * | |
5e07a79e LP |
954 | * However, "quiet" is only parsed by PID 1, and only turns of |
955 | * status output to /dev/console, but does not alter the log | |
956 | * level. | |
1de1c9c3 LP |
957 | */ |
958 | ||
959 | if (streq(key, "debug") && !value) | |
960 | log_set_max_level(LOG_DEBUG); | |
961 | ||
962 | else if (streq(key, "systemd.log_target") && value) { | |
963 | ||
964 | if (log_set_target_from_string(value) < 0) | |
965 | log_warning("Failed to parse log target '%s'. Ignoring.", value); | |
966 | ||
967 | } else if (streq(key, "systemd.log_level") && value) { | |
968 | ||
969 | if (log_set_max_level_from_string(value) < 0) | |
970 | log_warning("Failed to parse log level '%s'. Ignoring.", value); | |
971 | ||
972 | } else if (streq(key, "systemd.log_color") && value) { | |
973 | ||
974 | if (log_show_color_from_string(value) < 0) | |
975 | log_warning("Failed to parse log color setting '%s'. Ignoring.", value); | |
976 | ||
977 | } else if (streq(key, "systemd.log_location") && value) { | |
978 | ||
979 | if (log_show_location_from_string(value) < 0) | |
980 | log_warning("Failed to parse log location setting '%s'. Ignoring.", value); | |
981 | } | |
982 | ||
983 | return 0; | |
984 | } | |
985 | ||
34f0e866 LP |
986 | void log_parse_environment(void) { |
987 | const char *e; | |
b8d0ffc2 | 988 | |
ee46e555 ZJS |
989 | if (get_ctty_devnr(0, NULL) < 0) |
990 | /* Only try to read the command line in daemons. | |
991 | We assume that anything that has a controlling | |
992 | tty is user stuff. */ | |
993 | (void) parse_proc_cmdline(parse_proc_cmdline_item); | |
34f0e866 | 994 | |
4db17f29 | 995 | e = secure_getenv("SYSTEMD_LOG_TARGET"); |
88fae6e0 | 996 | if (e && log_set_target_from_string(e) < 0) |
f0ea29ea | 997 | log_warning("Failed to parse log target '%s'. Ignoring.", e); |
34f0e866 | 998 | |
4db17f29 | 999 | e = secure_getenv("SYSTEMD_LOG_LEVEL"); |
88fae6e0 | 1000 | if (e && log_set_max_level_from_string(e) < 0) |
f0ea29ea | 1001 | log_warning("Failed to parse log level '%s'. Ignoring.", e); |
bbe63281 | 1002 | |
4db17f29 | 1003 | e = secure_getenv("SYSTEMD_LOG_COLOR"); |
88fae6e0 | 1004 | if (e && log_show_color_from_string(e) < 0) |
f0ea29ea | 1005 | log_warning("Failed to parse bool '%s'. Ignoring.", e); |
bbe63281 | 1006 | |
4db17f29 | 1007 | e = secure_getenv("SYSTEMD_LOG_LOCATION"); |
88fae6e0 | 1008 | if (e && log_show_location_from_string(e) < 0) |
f0ea29ea | 1009 | log_warning("Failed to parse bool '%s'. Ignoring.", e); |
34f0e866 LP |
1010 | } |
1011 | ||
1adf1049 LP |
1012 | LogTarget log_get_target(void) { |
1013 | return log_target; | |
1014 | } | |
1015 | ||
1016 | int log_get_max_level(void) { | |
1017 | return log_max_level; | |
1018 | } | |
1019 | ||
bbe63281 LP |
1020 | void log_show_color(bool b) { |
1021 | show_color = b; | |
1022 | } | |
1023 | ||
b1e90ec5 ZJS |
1024 | bool log_get_show_color(void) { |
1025 | return show_color; | |
1026 | } | |
1027 | ||
bbe63281 LP |
1028 | void log_show_location(bool b) { |
1029 | show_location = b; | |
1030 | } | |
1031 | ||
b1e90ec5 ZJS |
1032 | bool log_get_show_location(void) { |
1033 | return show_location; | |
1034 | } | |
1035 | ||
bbe63281 LP |
1036 | int log_show_color_from_string(const char *e) { |
1037 | int t; | |
1038 | ||
5ba081b0 LP |
1039 | t = parse_boolean(e); |
1040 | if (t < 0) | |
1041 | return t; | |
bbe63281 LP |
1042 | |
1043 | log_show_color(t); | |
1044 | return 0; | |
1045 | } | |
1046 | ||
1047 | int log_show_location_from_string(const char *e) { | |
1048 | int t; | |
1049 | ||
5ba081b0 LP |
1050 | t = parse_boolean(e); |
1051 | if (t < 0) | |
1052 | return t; | |
bbe63281 LP |
1053 | |
1054 | log_show_location(t); | |
1055 | return 0; | |
1056 | } | |
1057 | ||
81270860 | 1058 | bool log_on_console(void) { |
aca83a53 LP |
1059 | if (log_target == LOG_TARGET_CONSOLE || |
1060 | log_target == LOG_TARGET_CONSOLE_PREFIXED) | |
81270860 LP |
1061 | return true; |
1062 | ||
1063 | return syslog_fd < 0 && kmsg_fd < 0 && journal_fd < 0; | |
1064 | } | |
1065 | ||
2c5859af | 1066 | static const char *const log_target_table[_LOG_TARGET_MAX] = { |
34f0e866 | 1067 | [LOG_TARGET_CONSOLE] = "console", |
aca83a53 | 1068 | [LOG_TARGET_CONSOLE_PREFIXED] = "console-prefixed", |
34f0e866 | 1069 | [LOG_TARGET_KMSG] = "kmsg", |
5ba081b0 LP |
1070 | [LOG_TARGET_JOURNAL] = "journal", |
1071 | [LOG_TARGET_JOURNAL_OR_KMSG] = "journal-or-kmsg", | |
1072 | [LOG_TARGET_SYSLOG] = "syslog", | |
843d2643 | 1073 | [LOG_TARGET_SYSLOG_OR_KMSG] = "syslog-or-kmsg", |
5ba081b0 | 1074 | [LOG_TARGET_AUTO] = "auto", |
a6903061 | 1075 | [LOG_TARGET_SAFE] = "safe", |
5ba081b0 | 1076 | [LOG_TARGET_NULL] = "null" |
34f0e866 LP |
1077 | }; |
1078 | ||
1079 | DEFINE_STRING_TABLE_LOOKUP(log_target, LogTarget); | |
4daf54a8 ZJS |
1080 | |
1081 | void log_received_signal(int level, const struct signalfd_siginfo *si) { | |
1082 | if (si->ssi_pid > 0) { | |
1083 | _cleanup_free_ char *p = NULL; | |
1084 | ||
1085 | get_process_comm(si->ssi_pid, &p); | |
1086 | ||
1087 | log_full(level, | |
1fa2f38f | 1088 | "Received SIG%s from PID %"PRIu32" (%s).", |
4daf54a8 ZJS |
1089 | signal_to_string(si->ssi_signo), |
1090 | si->ssi_pid, strna(p)); | |
1091 | } else | |
1092 | log_full(level, | |
1093 | "Received SIG%s.", | |
1094 | signal_to_string(si->ssi_signo)); | |
1095 | ||
1096 | } | |
c1dc6153 LP |
1097 | |
1098 | void log_set_upgrade_syslog_to_journal(bool b) { | |
1099 | upgrade_syslog_to_journal = b; | |
1100 | } | |
158350e8 LP |
1101 | |
1102 | int log_syntax_internal( | |
1103 | const char *unit, | |
1104 | int level, | |
1105 | const char *config_file, | |
1106 | unsigned config_line, | |
1107 | int error, | |
1108 | const char *file, | |
1109 | int line, | |
1110 | const char *func, | |
1111 | const char *format, ...) { | |
1112 | ||
1113 | PROTECT_ERRNO; | |
1114 | char buffer[LINE_MAX]; | |
1115 | int r; | |
1116 | va_list ap; | |
1117 | ||
1118 | if (error < 0) | |
1119 | error = -error; | |
1120 | ||
1121 | if (_likely_(LOG_PRI(level) > log_max_level)) | |
1122 | return -error; | |
1123 | ||
1124 | if (log_target == LOG_TARGET_NULL) | |
1125 | return -error; | |
1126 | ||
1127 | if (error != 0) | |
1128 | errno = error; | |
1129 | ||
1130 | va_start(ap, format); | |
1131 | vsnprintf(buffer, sizeof(buffer), format, ap); | |
1132 | va_end(ap); | |
1133 | ||
1134 | if (unit) | |
1135 | r = log_struct_internal( | |
1136 | level, error, | |
1137 | file, line, func, | |
1138 | getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit, | |
1139 | LOG_MESSAGE_ID(SD_MESSAGE_INVALID_CONFIGURATION), | |
1140 | "CONFIG_FILE=%s", config_file, | |
1141 | "CONFIG_LINE=%u", config_line, | |
1142 | LOG_MESSAGE("[%s:%u] %s", config_file, config_line, buffer), | |
1143 | NULL); | |
1144 | else | |
1145 | r = log_struct_internal( | |
1146 | level, error, | |
1147 | file, line, func, | |
1148 | LOG_MESSAGE_ID(SD_MESSAGE_INVALID_CONFIGURATION), | |
1149 | "CONFIG_FILE=%s", config_file, | |
1150 | "CONFIG_LINE=%u", config_line, | |
1151 | LOG_MESSAGE("[%s:%u] %s", config_file, config_line, buffer), | |
1152 | NULL); | |
1153 | ||
1154 | return r; | |
1155 | } |