]>
Commit | Line | Data |
---|---|---|
0153028a LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2011 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
19 | ||
4871690d | 20 | #include <stddef.h> |
0153028a | 21 | #include <sys/epoll.h> |
c79e98ea | 22 | #include <sys/mman.h> |
1e603a48 | 23 | #include <sys/statvfs.h> |
07630cea | 24 | #include <unistd.h> |
0153028a | 25 | |
b5efdb8a | 26 | #include "alloc-util.h" |
3ffd4af2 | 27 | #include "fd-util.h" |
f4f15635 | 28 | #include "fs-util.h" |
afc5dbf3 | 29 | #include "io-util.h" |
b18453ed | 30 | #include "journal-importer.h" |
0153028a | 31 | #include "journald-console.h" |
07630cea | 32 | #include "journald-kmsg.h" |
3ffd4af2 | 33 | #include "journald-native.h" |
07630cea | 34 | #include "journald-server.h" |
0153028a | 35 | #include "journald-syslog.h" |
40b71e89 | 36 | #include "journald-wall.h" |
a09abc4a | 37 | #include "memfd-util.h" |
6bedfcbb | 38 | #include "parse-util.h" |
07630cea | 39 | #include "path-util.h" |
22e3a02b | 40 | #include "process-util.h" |
07630cea LP |
41 | #include "selinux-util.h" |
42 | #include "socket-util.h" | |
43 | #include "string-util.h" | |
731e10f3 | 44 | #include "unaligned.h" |
0153028a | 45 | |
d18d46ec | 46 | bool valid_user_field(const char *p, size_t l, bool allow_protected) { |
0153028a LP |
47 | const char *a; |
48 | ||
49 | /* We kinda enforce POSIX syntax recommendations for | |
50 | environment variables here, but make a couple of additional | |
51 | requirements. | |
52 | ||
53 | http://pubs.opengroup.org/onlinepubs/000095399/basedefs/xbd_chap08.html */ | |
54 | ||
55 | /* No empty field names */ | |
56 | if (l <= 0) | |
57 | return false; | |
58 | ||
59 | /* Don't allow names longer than 64 chars */ | |
60 | if (l > 64) | |
61 | return false; | |
62 | ||
63 | /* Variables starting with an underscore are protected */ | |
d18d46ec | 64 | if (!allow_protected && p[0] == '_') |
0153028a LP |
65 | return false; |
66 | ||
67 | /* Don't allow digits as first character */ | |
68 | if (p[0] >= '0' && p[0] <= '9') | |
69 | return false; | |
70 | ||
71 | /* Only allow A-Z0-9 and '_' */ | |
72 | for (a = p; a < p + l; a++) | |
d18d46ec ZJS |
73 | if ((*a < 'A' || *a > 'Z') && |
74 | (*a < '0' || *a > '9') && | |
75 | *a != '_') | |
0153028a LP |
76 | return false; |
77 | ||
78 | return true; | |
79 | } | |
80 | ||
3b3154df | 81 | static bool allow_object_pid(const struct ucred *ucred) { |
968f3196 ZJS |
82 | return ucred && ucred->uid == 0; |
83 | } | |
84 | ||
4b29a7f4 ZJS |
85 | static void server_process_entry_meta( |
86 | const char *p, size_t l, | |
87 | const struct ucred *ucred, | |
88 | int *priority, | |
89 | char **identifier, | |
90 | char **message, | |
91 | pid_t *object_pid) { | |
92 | ||
93 | /* We need to determine the priority of this entry for the rate limiting logic */ | |
94 | ||
95 | if (l == 10 && | |
96 | startswith(p, "PRIORITY=") && | |
97 | p[9] >= '0' && p[9] <= '9') | |
98 | *priority = (*priority & LOG_FACMASK) | (p[9] - '0'); | |
99 | ||
100 | else if (l == 17 && | |
101 | startswith(p, "SYSLOG_FACILITY=") && | |
102 | p[16] >= '0' && p[16] <= '9') | |
103 | *priority = (*priority & LOG_PRIMASK) | ((p[16] - '0') << 3); | |
104 | ||
105 | else if (l == 18 && | |
106 | startswith(p, "SYSLOG_FACILITY=") && | |
107 | p[16] >= '0' && p[16] <= '9' && | |
108 | p[17] >= '0' && p[17] <= '9') | |
109 | *priority = (*priority & LOG_PRIMASK) | (((p[16] - '0')*10 + (p[17] - '0')) << 3); | |
110 | ||
111 | else if (l >= 19 && | |
112 | startswith(p, "SYSLOG_IDENTIFIER=")) { | |
113 | char *t; | |
114 | ||
115 | t = strndup(p + 18, l - 18); | |
116 | if (t) { | |
117 | free(*identifier); | |
118 | *identifier = t; | |
119 | } | |
120 | ||
121 | } else if (l >= 8 && | |
122 | startswith(p, "MESSAGE=")) { | |
123 | char *t; | |
124 | ||
125 | t = strndup(p + 8, l - 8); | |
126 | if (t) { | |
127 | free(*message); | |
128 | *message = t; | |
129 | } | |
130 | ||
131 | } else if (l > strlen("OBJECT_PID=") && | |
132 | l < strlen("OBJECT_PID=") + DECIMAL_STR_MAX(pid_t) && | |
133 | startswith(p, "OBJECT_PID=") && | |
134 | allow_object_pid(ucred)) { | |
135 | char buf[DECIMAL_STR_MAX(pid_t)]; | |
136 | memcpy(buf, p + strlen("OBJECT_PID="), l - strlen("OBJECT_PID=")); | |
137 | buf[l-strlen("OBJECT_PID=")] = '\0'; | |
138 | ||
139 | (void) parse_pid(buf, object_pid); | |
140 | } | |
141 | } | |
142 | ||
68944f19 | 143 | static int server_process_entry( |
0153028a | 144 | Server *s, |
68944f19 | 145 | const void *buffer, size_t *remaining, |
22e3a02b | 146 | ClientContext *context, |
3b3154df LP |
147 | const struct ucred *ucred, |
148 | const struct timeval *tv, | |
0153028a LP |
149 | const char *label, size_t label_len) { |
150 | ||
68944f19 ZJS |
151 | /* Process a single entry from a native message. |
152 | * Returns 0 if nothing special happened and the message processing should continue, | |
153 | * and a negative or positive value otherwise. | |
154 | * | |
155 | * Note that *remaining is altered on both success and failure. */ | |
156 | ||
0153028a | 157 | struct iovec *iovec = NULL; |
968f3196 | 158 | unsigned n = 0, j, tn = (unsigned) -1; |
0153028a | 159 | const char *p; |
68944f19 | 160 | size_t m = 0, entry_size = 0; |
0153028a LP |
161 | int priority = LOG_INFO; |
162 | char *identifier = NULL, *message = NULL; | |
968f3196 | 163 | pid_t object_pid = 0; |
68944f19 | 164 | int r = 0; |
0153028a LP |
165 | |
166 | p = buffer; | |
0153028a | 167 | |
68944f19 | 168 | while (*remaining > 0) { |
0153028a LP |
169 | const char *e, *q; |
170 | ||
68944f19 | 171 | e = memchr(p, '\n', *remaining); |
0153028a LP |
172 | |
173 | if (!e) { | |
174 | /* Trailing noise, let's ignore it, and flush what we collected */ | |
175 | log_debug("Received message with trailing noise, ignoring."); | |
68944f19 | 176 | r = 1; /* finish processing of the message */ |
0153028a LP |
177 | break; |
178 | } | |
179 | ||
180 | if (e == p) { | |
181 | /* Entry separator */ | |
68944f19 ZJS |
182 | *remaining -= 1; |
183 | break; | |
0153028a LP |
184 | } |
185 | ||
186 | if (*p == '.' || *p == '#') { | |
187 | /* Ignore control commands for now, and | |
188 | * comments too. */ | |
68944f19 | 189 | *remaining -= (e - p) + 1; |
0153028a LP |
190 | p = e + 1; |
191 | continue; | |
192 | } | |
193 | ||
194 | /* A property follows */ | |
195 | ||
12a717f8 | 196 | /* n existing properties, 1 new, +1 for _TRANSPORT */ |
92ee6447 | 197 | if (!GREEDY_REALLOC(iovec, m, n + 2 + N_IOVEC_META_FIELDS + N_IOVEC_OBJECT_FIELDS)) { |
68944f19 | 198 | r = log_oom(); |
968f3196 | 199 | break; |
0153028a LP |
200 | } |
201 | ||
202 | q = memchr(p, '=', e - p); | |
203 | if (q) { | |
d18d46ec | 204 | if (valid_user_field(p, q - p, false)) { |
0153028a LP |
205 | size_t l; |
206 | ||
207 | l = e - p; | |
208 | ||
209 | /* If the field name starts with an | |
210 | * underscore, skip the variable, | |
4b29a7f4 | 211 | * since that indicates a trusted |
0153028a LP |
212 | * field */ |
213 | iovec[n].iov_base = (char*) p; | |
214 | iovec[n].iov_len = l; | |
68944f19 | 215 | entry_size += l; |
a174f94d | 216 | n++; |
0153028a | 217 | |
4b29a7f4 ZJS |
218 | server_process_entry_meta(p, l, ucred, |
219 | &priority, | |
220 | &identifier, | |
221 | &message, | |
222 | &object_pid); | |
0153028a LP |
223 | } |
224 | ||
68944f19 | 225 | *remaining -= (e - p) + 1; |
0153028a LP |
226 | p = e + 1; |
227 | continue; | |
228 | } else { | |
0153028a LP |
229 | uint64_t l; |
230 | char *k; | |
231 | ||
68944f19 | 232 | if (*remaining < e - p + 1 + sizeof(uint64_t) + 1) { |
0153028a LP |
233 | log_debug("Failed to parse message, ignoring."); |
234 | break; | |
235 | } | |
236 | ||
731e10f3 | 237 | l = unaligned_read_le64(e + 1); |
0153028a | 238 | |
505b6a61 | 239 | if (l > DATA_SIZE_MAX) { |
fa1c4b51 | 240 | log_debug("Received binary data block of %"PRIu64" bytes is too large, ignoring.", l); |
505b6a61 LP |
241 | break; |
242 | } | |
243 | ||
68944f19 | 244 | if ((uint64_t) *remaining < e - p + 1 + sizeof(uint64_t) + l + 1 || |
0153028a LP |
245 | e[1+sizeof(uint64_t)+l] != '\n') { |
246 | log_debug("Failed to parse message, ignoring."); | |
247 | break; | |
248 | } | |
249 | ||
250 | k = malloc((e - p) + 1 + l); | |
251 | if (!k) { | |
252 | log_oom(); | |
253 | break; | |
254 | } | |
255 | ||
256 | memcpy(k, p, e - p); | |
257 | k[e - p] = '='; | |
258 | memcpy(k + (e - p) + 1, e + 1 + sizeof(uint64_t), l); | |
259 | ||
d18d46ec | 260 | if (valid_user_field(p, e - p, false)) { |
0153028a LP |
261 | iovec[n].iov_base = k; |
262 | iovec[n].iov_len = (e - p) + 1 + l; | |
874bc134 | 263 | entry_size += iovec[n].iov_len; |
a174f94d | 264 | n++; |
4b29a7f4 ZJS |
265 | |
266 | server_process_entry_meta(k, (e - p) + 1 + l, ucred, | |
267 | &priority, | |
268 | &identifier, | |
269 | &message, | |
270 | &object_pid); | |
0153028a LP |
271 | } else |
272 | free(k); | |
273 | ||
68944f19 | 274 | *remaining -= (e - p) + 1 + sizeof(uint64_t) + l + 1; |
0153028a LP |
275 | p = e + 1 + sizeof(uint64_t) + l + 1; |
276 | } | |
277 | } | |
278 | ||
68944f19 ZJS |
279 | if (n <= 0) { |
280 | r = 1; | |
0153028a | 281 | goto finish; |
68944f19 | 282 | } |
0153028a LP |
283 | |
284 | tn = n++; | |
e6a7ec4b | 285 | iovec[tn] = IOVEC_MAKE_STRING("_TRANSPORT=journal"); |
874bc134 ZJS |
286 | entry_size += strlen("_TRANSPORT=journal"); |
287 | ||
288 | if (entry_size + n + 1 > ENTRY_SIZE_MAX) { /* data + separators + trailer */ | |
289 | log_debug("Entry is too big with %u properties and %zu bytes, ignoring.", | |
290 | n, entry_size); | |
291 | goto finish; | |
292 | } | |
0153028a LP |
293 | |
294 | if (message) { | |
295 | if (s->forward_to_syslog) | |
b6a20306 | 296 | server_forward_syslog(s, syslog_fixup_facility(priority), identifier, message, ucred, tv); |
0153028a LP |
297 | |
298 | if (s->forward_to_kmsg) | |
299 | server_forward_kmsg(s, priority, identifier, message, ucred); | |
300 | ||
301 | if (s->forward_to_console) | |
302 | server_forward_console(s, priority, identifier, message, ucred); | |
40b71e89 ST |
303 | |
304 | if (s->forward_to_wall) | |
305 | server_forward_wall(s, priority, identifier, message, ucred); | |
0153028a LP |
306 | } |
307 | ||
22e3a02b | 308 | server_dispatch_message(s, iovec, n, m, context, tv, priority, object_pid); |
0153028a LP |
309 | |
310 | finish: | |
311 | for (j = 0; j < n; j++) { | |
312 | if (j == tn) | |
313 | continue; | |
314 | ||
315 | if (iovec[j].iov_base < buffer || | |
68944f19 | 316 | (const char*) iovec[j].iov_base >= p + *remaining) |
0153028a LP |
317 | free(iovec[j].iov_base); |
318 | } | |
319 | ||
320 | free(iovec); | |
321 | free(identifier); | |
322 | free(message); | |
68944f19 ZJS |
323 | |
324 | return r; | |
325 | } | |
326 | ||
327 | void server_process_native_message( | |
328 | Server *s, | |
329 | const void *buffer, size_t buffer_size, | |
330 | const struct ucred *ucred, | |
331 | const struct timeval *tv, | |
332 | const char *label, size_t label_len) { | |
333 | ||
68944f19 | 334 | size_t remaining = buffer_size; |
22e3a02b LP |
335 | ClientContext *context; |
336 | int r; | |
68944f19 ZJS |
337 | |
338 | assert(s); | |
339 | assert(buffer || buffer_size == 0); | |
340 | ||
22e3a02b LP |
341 | if (ucred && pid_is_valid(ucred->pid)) { |
342 | r = client_context_get(s, ucred->pid, ucred, label, label_len, NULL, &context); | |
343 | if (r < 0) | |
344 | log_warning_errno(r, "Failed to retrieve credentials for PID " PID_FMT ", ignoring: %m", ucred->pid); | |
345 | } | |
346 | ||
68944f19 ZJS |
347 | do { |
348 | r = server_process_entry(s, | |
349 | (const uint8_t*) buffer + (buffer_size - remaining), &remaining, | |
22e3a02b | 350 | context, ucred, tv, label, label_len); |
68944f19 | 351 | } while (r == 0); |
0153028a LP |
352 | } |
353 | ||
354 | void server_process_native_file( | |
355 | Server *s, | |
356 | int fd, | |
3b3154df LP |
357 | const struct ucred *ucred, |
358 | const struct timeval *tv, | |
0153028a LP |
359 | const char *label, size_t label_len) { |
360 | ||
361 | struct stat st; | |
c79e98ea | 362 | bool sealed; |
1dfa7e79 | 363 | int r; |
0153028a | 364 | |
c79e98ea LP |
365 | /* Data is in the passed fd, since it didn't fit in a |
366 | * datagram. */ | |
367 | ||
0153028a LP |
368 | assert(s); |
369 | assert(fd >= 0); | |
370 | ||
c79e98ea LP |
371 | /* If it's a memfd, check if it is sealed. If so, we can just |
372 | * use map it and use it, and do not need to copy the data | |
373 | * out. */ | |
73843b52 | 374 | sealed = memfd_get_sealed(fd) > 0; |
c79e98ea LP |
375 | |
376 | if (!sealed && (!ucred || ucred->uid != 0)) { | |
1dfa7e79 LP |
377 | _cleanup_free_ char *sl = NULL, *k = NULL; |
378 | const char *e; | |
379 | ||
c79e98ea LP |
380 | /* If this is not a sealed memfd, and the peer is unknown or |
381 | * unprivileged, then verify the path. */ | |
382 | ||
1dfa7e79 LP |
383 | if (asprintf(&sl, "/proc/self/fd/%i", fd) < 0) { |
384 | log_oom(); | |
385 | return; | |
386 | } | |
387 | ||
388 | r = readlink_malloc(sl, &k); | |
389 | if (r < 0) { | |
709f6e46 | 390 | log_error_errno(r, "readlink(%s) failed: %m", sl); |
1dfa7e79 LP |
391 | return; |
392 | } | |
393 | ||
394 | e = path_startswith(k, "/dev/shm/"); | |
395 | if (!e) | |
396 | e = path_startswith(k, "/tmp/"); | |
397 | if (!e) | |
398 | e = path_startswith(k, "/var/tmp/"); | |
399 | if (!e) { | |
400 | log_error("Received file outside of allowed directories. Refusing."); | |
401 | return; | |
402 | } | |
403 | ||
ae6c3cc0 | 404 | if (!filename_is_valid(e)) { |
1dfa7e79 LP |
405 | log_error("Received file in subdirectory of allowed directories. Refusing."); |
406 | return; | |
407 | } | |
408 | } | |
409 | ||
0153028a | 410 | if (fstat(fd, &st) < 0) { |
56f64d95 | 411 | log_error_errno(errno, "Failed to stat passed file, ignoring: %m"); |
0153028a LP |
412 | return; |
413 | } | |
414 | ||
415 | if (!S_ISREG(st.st_mode)) { | |
416 | log_error("File passed is not regular. Ignoring."); | |
417 | return; | |
418 | } | |
419 | ||
420 | if (st.st_size <= 0) | |
421 | return; | |
422 | ||
423 | if (st.st_size > ENTRY_SIZE_MAX) { | |
424 | log_error("File passed too large. Ignoring."); | |
425 | return; | |
426 | } | |
427 | ||
c79e98ea LP |
428 | if (sealed) { |
429 | void *p; | |
430 | size_t ps; | |
431 | ||
432 | /* The file is sealed, we can just map it and use it. */ | |
0153028a | 433 | |
c79e98ea LP |
434 | ps = PAGE_ALIGN(st.st_size); |
435 | p = mmap(NULL, ps, PROT_READ, MAP_PRIVATE, fd, 0); | |
436 | if (p == MAP_FAILED) { | |
56f64d95 | 437 | log_error_errno(errno, "Failed to map memfd, ignoring: %m"); |
c79e98ea LP |
438 | return; |
439 | } | |
440 | ||
441 | server_process_native_message(s, p, st.st_size, ucred, tv, label, label_len); | |
442 | assert_se(munmap(p, ps) >= 0); | |
443 | } else { | |
444 | _cleanup_free_ void *p = NULL; | |
1e603a48 | 445 | struct statvfs vfs; |
c79e98ea LP |
446 | ssize_t n; |
447 | ||
1e603a48 LP |
448 | if (fstatvfs(fd, &vfs) < 0) { |
449 | log_error_errno(errno, "Failed to stat file system of passed file, ignoring: %m"); | |
450 | return; | |
451 | } | |
452 | ||
453 | /* Refuse operating on file systems that have | |
454 | * mandatory locking enabled, see: | |
455 | * | |
456 | * https://github.com/systemd/systemd/issues/1822 | |
457 | */ | |
458 | if (vfs.f_flag & ST_MANDLOCK) { | |
459 | log_error("Received file descriptor from file system with mandatory locking enable, refusing."); | |
460 | return; | |
461 | } | |
462 | ||
463 | /* Make the fd non-blocking. On regular files this has | |
464 | * the effect of bypassing mandatory locking. Of | |
465 | * course, this should normally not be necessary given | |
466 | * the check above, but let's better be safe than | |
467 | * sorry, after all NFS is pretty confusing regarding | |
468 | * file system flags, and we better don't trust it, | |
469 | * and so is SMB. */ | |
470 | r = fd_nonblock(fd, true); | |
471 | if (r < 0) { | |
472 | log_error_errno(r, "Failed to make fd non-blocking, ignoring: %m"); | |
473 | return; | |
474 | } | |
475 | ||
c79e98ea LP |
476 | /* The file is not sealed, we can't map the file here, since |
477 | * clients might then truncate it and trigger a SIGBUS for | |
478 | * us. So let's stupidly read it */ | |
479 | ||
480 | p = malloc(st.st_size); | |
481 | if (!p) { | |
482 | log_oom(); | |
483 | return; | |
484 | } | |
485 | ||
486 | n = pread(fd, p, st.st_size, 0); | |
487 | if (n < 0) | |
c3753458 | 488 | log_error_errno(errno, "Failed to read file, ignoring: %m"); |
c79e98ea LP |
489 | else if (n > 0) |
490 | server_process_native_message(s, p, n, ucred, tv, label, label_len); | |
491 | } | |
0153028a LP |
492 | } |
493 | ||
494 | int server_open_native_socket(Server*s) { | |
fc2fffe7 LP |
495 | |
496 | static const union sockaddr_union sa = { | |
497 | .un.sun_family = AF_UNIX, | |
498 | .un.sun_path = "/run/systemd/journal/socket", | |
499 | }; | |
3b3154df LP |
500 | static const int one = 1; |
501 | int r; | |
0153028a LP |
502 | |
503 | assert(s); | |
504 | ||
505 | if (s->native_fd < 0) { | |
0153028a | 506 | s->native_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0); |
4a62c710 MS |
507 | if (s->native_fd < 0) |
508 | return log_error_errno(errno, "socket() failed: %m"); | |
0153028a | 509 | |
fc2fffe7 | 510 | (void) unlink(sa.un.sun_path); |
0153028a | 511 | |
fc2fffe7 | 512 | r = bind(s->native_fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)); |
4a62c710 MS |
513 | if (r < 0) |
514 | return log_error_errno(errno, "bind(%s) failed: %m", sa.un.sun_path); | |
0153028a | 515 | |
4a61c3e5 | 516 | (void) chmod(sa.un.sun_path, 0666); |
0153028a LP |
517 | } else |
518 | fd_nonblock(s->native_fd, 1); | |
519 | ||
0153028a | 520 | r = setsockopt(s->native_fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)); |
4a62c710 MS |
521 | if (r < 0) |
522 | return log_error_errno(errno, "SO_PASSCRED failed: %m"); | |
0153028a | 523 | |
349cc4a5 | 524 | #if HAVE_SELINUX |
6d395665 | 525 | if (mac_selinux_use()) { |
d682b3a7 LP |
526 | r = setsockopt(s->native_fd, SOL_SOCKET, SO_PASSSEC, &one, sizeof(one)); |
527 | if (r < 0) | |
56f64d95 | 528 | log_warning_errno(errno, "SO_PASSSEC failed: %m"); |
d682b3a7 | 529 | } |
0153028a LP |
530 | #endif |
531 | ||
0153028a | 532 | r = setsockopt(s->native_fd, SOL_SOCKET, SO_TIMESTAMP, &one, sizeof(one)); |
4a62c710 MS |
533 | if (r < 0) |
534 | return log_error_errno(errno, "SO_TIMESTAMP failed: %m"); | |
0153028a | 535 | |
8531ae70 | 536 | r = sd_event_add_io(s->event, &s->native_event_source, s->native_fd, EPOLLIN, server_process_datagram, s); |
23bbb0de MS |
537 | if (r < 0) |
538 | return log_error_errno(r, "Failed to add native server fd to event loop: %m"); | |
0153028a | 539 | |
48cef295 VC |
540 | r = sd_event_source_set_priority(s->native_event_source, SD_EVENT_PRIORITY_NORMAL+5); |
541 | if (r < 0) | |
542 | return log_error_errno(r, "Failed to adjust native event source priority: %m"); | |
543 | ||
0153028a LP |
544 | return 0; |
545 | } |