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274a4a44 | 1 | /* |
274a4a44 | 2 | * Logging of zebra |
718e3744 | 3 | * Copyright (C) 1997, 1998, 1999 Kunihiro Ishiguro |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
896014f4 DL |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 20 | */ |
21 | ||
ab0181ee | 22 | #define FRR_DEFINE_DESC_TABLE |
e0ca5fde | 23 | |
718e3744 | 24 | #include <zebra.h> |
25 | ||
8613585e | 26 | #include "zclient.h" |
718e3744 | 27 | #include "log.h" |
deaa50db | 28 | #include "log_int.h" |
718e3744 | 29 | #include "memory.h" |
30 | #include "command.h" | |
481bc15f DS |
31 | #include "lib_errors.h" |
32 | ||
7d149b8e | 33 | #ifndef SUNOS_5 |
34 | #include <sys/un.h> | |
35 | #endif | |
30a2231a PJ |
36 | /* for printstack on solaris */ |
37 | #ifdef HAVE_UCONTEXT_H | |
38 | #include <ucontext.h> | |
39 | #endif | |
718e3744 | 40 | |
68b8a15f DL |
41 | #ifdef HAVE_LIBUNWIND |
42 | #define UNW_LOCAL_ONLY | |
43 | #include <libunwind.h> | |
44 | #include <dlfcn.h> | |
45 | #endif | |
46 | ||
4a1ab8e4 DL |
47 | DEFINE_MTYPE_STATIC(LIB, ZLOG, "Logging") |
48 | ||
d62a17ae | 49 | static int logfile_fd = -1; /* Used in signal handler. */ |
1e221354 | 50 | |
718e3744 | 51 | struct zlog *zlog_default = NULL; |
d34cb7f0 | 52 | bool zlog_startup_stderr = true; |
718e3744 | 53 | |
dd73dca9 QY |
54 | /* lock protecting zlog_default for mt-safe zlog */ |
55 | pthread_mutex_t loglock = PTHREAD_MUTEX_INITIALIZER; | |
56 | ||
d62a17ae | 57 | const char *zlog_priority[] = { |
58 | "emergencies", "alerts", "critical", "errors", "warnings", | |
59 | "notifications", "informational", "debugging", NULL, | |
718e3744 | 60 | }; |
718e3744 | 61 | |
7a49a5b5 DS |
62 | /* |
63 | * write_wrapper | |
64 | * | |
65 | * glibc has declared that the return value from write *must* not be | |
66 | * ignored. | |
67 | * gcc see's this problem and issues a warning for the line. | |
68 | * | |
69 | * Why is this a big deal you say? Because both of them are right | |
70 | * and if you have -Werror enabled then all calls to write | |
71 | * generate a build error and the build stops. | |
72 | * | |
73 | * clang has helpfully allowed this construct: | |
74 | * (void)write(...) | |
75 | * to tell the compiler yeah I know it has a return value | |
76 | * I don't care about it at this time. | |
77 | * gcc doesn't have this ability. | |
78 | * | |
79 | * This code was written such that it didn't care about the | |
80 | * return value from write. At this time do I want | |
81 | * to go through and fix and test this code for correctness. | |
82 | * So just wrapper the bad behavior and move on. | |
83 | */ | |
d62a17ae | 84 | static void write_wrapper(int fd, const void *buf, size_t count) |
7a49a5b5 | 85 | { |
d62a17ae | 86 | if (write(fd, buf, count) <= 0) |
87 | return; | |
7a49a5b5 | 88 | |
d62a17ae | 89 | return; |
7a49a5b5 | 90 | } |
6b0655a2 | 91 | |
56b40679 QY |
92 | /** |
93 | * Looks up a message in a message list by key. | |
94 | * | |
95 | * If the message is not found, returns the provided error message. | |
96 | * | |
97 | * Terminates when it hits a struct message that's all zeros. | |
98 | * | |
99 | * @param mz the message list | |
100 | * @param kz the message key | |
101 | * @param nf the message to return if not found | |
102 | * @return the message | |
103 | */ | |
d62a17ae | 104 | const char *lookup_msg(const struct message *mz, int kz, const char *nf) |
56b40679 | 105 | { |
d62a17ae | 106 | static struct message nt = {0}; |
107 | const char *rz = nf ? nf : "(no message found)"; | |
108 | const struct message *pnt; | |
109 | for (pnt = mz; memcmp(pnt, &nt, sizeof(struct message)); pnt++) | |
110 | if (pnt->key == kz) { | |
111 | rz = pnt->str ? pnt->str : rz; | |
112 | break; | |
113 | } | |
114 | return rz; | |
56b40679 | 115 | } |
718e3744 | 116 | |
56b40679 | 117 | /* For time string format. */ |
d62a17ae | 118 | size_t quagga_timestamp(int timestamp_precision, char *buf, size_t buflen) |
718e3744 | 119 | { |
d62a17ae | 120 | static struct { |
121 | time_t last; | |
122 | size_t len; | |
123 | char buf[28]; | |
124 | } cache; | |
125 | struct timeval clock; | |
126 | ||
127 | gettimeofday(&clock, NULL); | |
128 | ||
129 | /* first, we update the cache if the time has changed */ | |
130 | if (cache.last != clock.tv_sec) { | |
131 | struct tm *tm; | |
132 | cache.last = clock.tv_sec; | |
133 | tm = localtime(&cache.last); | |
134 | cache.len = strftime(cache.buf, sizeof(cache.buf), | |
135 | "%Y/%m/%d %H:%M:%S", tm); | |
136 | } | |
137 | /* note: it's not worth caching the subsecond part, because | |
138 | chances are that back-to-back calls are not sufficiently close | |
139 | together | |
140 | for the clock not to have ticked forward */ | |
141 | ||
142 | if (buflen > cache.len) { | |
143 | memcpy(buf, cache.buf, cache.len); | |
144 | if ((timestamp_precision > 0) | |
145 | && (buflen > cache.len + 1 + timestamp_precision)) { | |
146 | /* should we worry about locale issues? */ | |
147 | static const int divisor[] = {0, 100000, 10000, 1000, | |
148 | 100, 10, 1}; | |
149 | int prec; | |
150 | char *p = buf + cache.len + 1 | |
151 | + (prec = timestamp_precision); | |
152 | *p-- = '\0'; | |
153 | while (prec > 6) | |
154 | /* this is unlikely to happen, but protect anyway */ | |
155 | { | |
156 | *p-- = '0'; | |
157 | prec--; | |
158 | } | |
159 | clock.tv_usec /= divisor[prec]; | |
160 | do { | |
161 | *p-- = '0' + (clock.tv_usec % 10); | |
162 | clock.tv_usec /= 10; | |
163 | } while (--prec > 0); | |
164 | *p = '.'; | |
165 | return cache.len + 1 + timestamp_precision; | |
166 | } | |
167 | buf[cache.len] = '\0'; | |
168 | return cache.len; | |
1ed72e0b | 169 | } |
d62a17ae | 170 | if (buflen > 0) |
171 | buf[0] = '\0'; | |
172 | return 0; | |
1ed72e0b | 173 | } |
718e3744 | 174 | |
1ed72e0b | 175 | /* Utility routine for current time printing. */ |
d62a17ae | 176 | static void time_print(FILE *fp, struct timestamp_control *ctl) |
1ed72e0b | 177 | { |
d62a17ae | 178 | if (!ctl->already_rendered) { |
179 | ctl->len = quagga_timestamp(ctl->precision, ctl->buf, | |
180 | sizeof(ctl->buf)); | |
181 | ctl->already_rendered = 1; | |
182 | } | |
183 | fprintf(fp, "%s ", ctl->buf); | |
718e3744 | 184 | } |
d62a17ae | 185 | |
6b0655a2 | 186 | |
d34cb7f0 | 187 | static void vzlog_file(struct zlog *zl, struct timestamp_control *tsctl, |
996c9314 LB |
188 | const char *proto_str, int record_priority, int priority, |
189 | FILE *fp, const char *format, va_list args) | |
d34cb7f0 DL |
190 | { |
191 | va_list ac; | |
192 | ||
193 | time_print(fp, tsctl); | |
194 | if (record_priority) | |
195 | fprintf(fp, "%s: ", zlog_priority[priority]); | |
196 | ||
197 | fprintf(fp, "%s", proto_str); | |
198 | va_copy(ac, args); | |
199 | vfprintf(fp, format, ac); | |
200 | va_end(ac); | |
201 | fprintf(fp, "\n"); | |
202 | fflush(fp); | |
203 | } | |
204 | ||
718e3744 | 205 | /* va_list version of zlog. */ |
d62a17ae | 206 | void vzlog(int priority, const char *format, va_list args) |
718e3744 | 207 | { |
dd73dca9 QY |
208 | pthread_mutex_lock(&loglock); |
209 | ||
d62a17ae | 210 | char proto_str[32]; |
211 | int original_errno = errno; | |
212 | struct timestamp_control tsctl; | |
213 | tsctl.already_rendered = 0; | |
214 | struct zlog *zl = zlog_default; | |
215 | ||
216 | /* When zlog_default is also NULL, use stderr for logging. */ | |
217 | if (zl == NULL) { | |
218 | tsctl.precision = 0; | |
219 | time_print(stderr, &tsctl); | |
220 | fprintf(stderr, "%s: ", "unknown"); | |
221 | vfprintf(stderr, format, args); | |
222 | fprintf(stderr, "\n"); | |
223 | fflush(stderr); | |
224 | ||
225 | /* In this case we return at here. */ | |
226 | errno = original_errno; | |
dd73dca9 | 227 | pthread_mutex_unlock(&loglock); |
d62a17ae | 228 | return; |
229 | } | |
230 | tsctl.precision = zl->timestamp_precision; | |
231 | ||
232 | /* Syslog output */ | |
233 | if (priority <= zl->maxlvl[ZLOG_DEST_SYSLOG]) { | |
234 | va_list ac; | |
235 | va_copy(ac, args); | |
236 | vsyslog(priority | zlog_default->facility, format, ac); | |
237 | va_end(ac); | |
238 | } | |
239 | ||
240 | if (zl->instance) | |
241 | sprintf(proto_str, "%s[%d]: ", zl->protoname, zl->instance); | |
242 | else | |
243 | sprintf(proto_str, "%s: ", zl->protoname); | |
244 | ||
245 | /* File output. */ | |
d34cb7f0 | 246 | if ((priority <= zl->maxlvl[ZLOG_DEST_FILE]) && zl->fp) |
996c9314 LB |
247 | vzlog_file(zl, &tsctl, proto_str, zl->record_priority, priority, |
248 | zl->fp, format, args); | |
d62a17ae | 249 | |
d34cb7f0 DL |
250 | /* fixed-config logging to stderr while we're stating up & haven't |
251 | * daemonized / reached mainloop yet | |
252 | * | |
253 | * note the "else" on stdout output -- we don't want to print the same | |
254 | * message to both stderr and stdout. */ | |
255 | if (zlog_startup_stderr && priority <= LOG_WARNING) | |
996c9314 LB |
256 | vzlog_file(zl, &tsctl, proto_str, 1, priority, stderr, format, |
257 | args); | |
d34cb7f0 | 258 | else if (priority <= zl->maxlvl[ZLOG_DEST_STDOUT]) |
996c9314 LB |
259 | vzlog_file(zl, &tsctl, proto_str, zl->record_priority, priority, |
260 | stdout, format, args); | |
d62a17ae | 261 | |
262 | /* Terminal monitor. */ | |
263 | if (priority <= zl->maxlvl[ZLOG_DEST_MONITOR]) | |
264 | vty_log((zl->record_priority ? zlog_priority[priority] : NULL), | |
265 | proto_str, format, &tsctl, args); | |
266 | ||
267 | errno = original_errno; | |
dd73dca9 | 268 | pthread_mutex_unlock(&loglock); |
718e3744 | 269 | } |
270 | ||
d62a17ae | 271 | int vzlog_test(int priority) |
65efcfce | 272 | { |
dd73dca9 QY |
273 | pthread_mutex_lock(&loglock); |
274 | ||
275 | int ret = 0; | |
276 | ||
d62a17ae | 277 | struct zlog *zl = zlog_default; |
278 | ||
279 | /* When zlog_default is also NULL, use stderr for logging. */ | |
dd73dca9 QY |
280 | if (zl == NULL) |
281 | ret = 1; | |
d62a17ae | 282 | /* Syslog output */ |
dd73dca9 QY |
283 | else if (priority <= zl->maxlvl[ZLOG_DEST_SYSLOG]) |
284 | ret = 1; | |
d62a17ae | 285 | /* File output. */ |
dd73dca9 QY |
286 | else if ((priority <= zl->maxlvl[ZLOG_DEST_FILE]) && zl->fp) |
287 | ret = 1; | |
d62a17ae | 288 | /* stdout output. */ |
dd73dca9 QY |
289 | else if (priority <= zl->maxlvl[ZLOG_DEST_STDOUT]) |
290 | ret = 1; | |
d62a17ae | 291 | /* Terminal monitor. */ |
dd73dca9 QY |
292 | else if (priority <= zl->maxlvl[ZLOG_DEST_MONITOR]) |
293 | ret = 1; | |
d62a17ae | 294 | |
dd73dca9 QY |
295 | pthread_mutex_unlock(&loglock); |
296 | ||
297 | return ret; | |
65efcfce LB |
298 | } |
299 | ||
d62a17ae | 300 | static char *str_append(char *dst, int len, const char *src) |
59a06a91 | 301 | { |
d62a17ae | 302 | while ((len-- > 0) && *src) |
303 | *dst++ = *src++; | |
304 | return dst; | |
59a06a91 | 305 | } |
306 | ||
d7c0a89a | 307 | static char *num_append(char *s, int len, unsigned long x) |
59a06a91 | 308 | { |
d62a17ae | 309 | char buf[30]; |
310 | char *t; | |
311 | ||
312 | if (!x) | |
313 | return str_append(s, len, "0"); | |
314 | *(t = &buf[sizeof(buf) - 1]) = '\0'; | |
315 | while (x && (t > buf)) { | |
316 | *--t = '0' + (x % 10); | |
317 | x /= 10; | |
318 | } | |
319 | return str_append(s, len, t); | |
59a06a91 | 320 | } |
321 | ||
68b8a15f DL |
322 | #if defined(SA_SIGINFO) \ |
323 | || defined(HAVE_PRINTSTACK) \ | |
324 | || defined(HAVE_GLIBC_BACKTRACE) | |
d7c0a89a | 325 | static char *hex_append(char *s, int len, unsigned long x) |
7d149b8e | 326 | { |
d62a17ae | 327 | char buf[30]; |
328 | char *t; | |
329 | ||
330 | if (!x) | |
331 | return str_append(s, len, "0"); | |
332 | *(t = &buf[sizeof(buf) - 1]) = '\0'; | |
333 | while (x && (t > buf)) { | |
d7c0a89a | 334 | unsigned int cc = (x % 16); |
d62a17ae | 335 | *--t = ((cc < 10) ? ('0' + cc) : ('a' + cc - 10)); |
336 | x /= 16; | |
337 | } | |
338 | return str_append(s, len, t); | |
7d149b8e | 339 | } |
31364274 | 340 | #endif |
7d149b8e | 341 | |
7d149b8e | 342 | /* Needs to be enhanced to support Solaris. */ |
d62a17ae | 343 | static int syslog_connect(void) |
7d149b8e | 344 | { |
345 | #ifdef SUNOS_5 | |
d62a17ae | 346 | return -1; |
7d149b8e | 347 | #else |
d62a17ae | 348 | int fd; |
349 | char *s; | |
350 | struct sockaddr_un addr; | |
7d149b8e | 351 | |
d62a17ae | 352 | if ((fd = socket(AF_UNIX, SOCK_DGRAM, 0)) < 0) |
353 | return -1; | |
354 | addr.sun_family = AF_UNIX; | |
7d149b8e | 355 | #ifdef _PATH_LOG |
356 | #define SYSLOG_SOCKET_PATH _PATH_LOG | |
357 | #else | |
358 | #define SYSLOG_SOCKET_PATH "/dev/log" | |
359 | #endif | |
d62a17ae | 360 | s = str_append(addr.sun_path, sizeof(addr.sun_path), |
361 | SYSLOG_SOCKET_PATH); | |
7d149b8e | 362 | #undef SYSLOG_SOCKET_PATH |
d62a17ae | 363 | *s = '\0'; |
364 | if (connect(fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) { | |
365 | close(fd); | |
366 | return -1; | |
367 | } | |
368 | return fd; | |
7d149b8e | 369 | #endif |
370 | } | |
371 | ||
d62a17ae | 372 | static void syslog_sigsafe(int priority, const char *msg, size_t msglen) |
7d149b8e | 373 | { |
d62a17ae | 374 | static int syslog_fd = -1; |
375 | char buf[sizeof("<1234567890>ripngd[1234567890]: ") + msglen + 50]; | |
376 | char *s; | |
7d149b8e | 377 | |
d62a17ae | 378 | if ((syslog_fd < 0) && ((syslog_fd = syslog_connect()) < 0)) |
379 | return; | |
7d149b8e | 380 | |
381 | #define LOC s,buf+sizeof(buf)-s | |
d62a17ae | 382 | s = buf; |
383 | s = str_append(LOC, "<"); | |
384 | s = num_append(LOC, priority); | |
385 | s = str_append(LOC, ">"); | |
386 | /* forget about the timestamp, too difficult in a signal handler */ | |
387 | s = str_append(LOC, zlog_default->ident); | |
388 | if (zlog_default->syslog_options & LOG_PID) { | |
389 | s = str_append(LOC, "["); | |
390 | s = num_append(LOC, getpid()); | |
391 | s = str_append(LOC, "]"); | |
392 | } | |
393 | s = str_append(LOC, ": "); | |
394 | s = str_append(LOC, msg); | |
395 | write_wrapper(syslog_fd, buf, s - buf); | |
7d149b8e | 396 | #undef LOC |
397 | } | |
398 | ||
d62a17ae | 399 | static int open_crashlog(void) |
1e221354 | 400 | { |
401 | #define CRASHLOG_PREFIX "/var/tmp/quagga." | |
402 | #define CRASHLOG_SUFFIX "crashlog" | |
d62a17ae | 403 | if (zlog_default && zlog_default->ident) { |
404 | /* Avoid strlen since it is not async-signal-safe. */ | |
405 | const char *p; | |
406 | size_t ilen; | |
407 | ||
408 | for (p = zlog_default->ident, ilen = 0; *p; p++) | |
409 | ilen++; | |
410 | { | |
411 | char buf[sizeof(CRASHLOG_PREFIX) + ilen | |
412 | + sizeof(CRASHLOG_SUFFIX) + 3]; | |
413 | char *s = buf; | |
1e221354 | 414 | #define LOC s,buf+sizeof(buf)-s |
d62a17ae | 415 | s = str_append(LOC, CRASHLOG_PREFIX); |
416 | s = str_append(LOC, zlog_default->ident); | |
417 | s = str_append(LOC, "."); | |
418 | s = str_append(LOC, CRASHLOG_SUFFIX); | |
1e221354 | 419 | #undef LOC |
d62a17ae | 420 | *s = '\0'; |
421 | return open(buf, O_WRONLY | O_CREAT | O_EXCL, | |
422 | LOGFILE_MASK); | |
423 | } | |
424 | } | |
425 | return open(CRASHLOG_PREFIX CRASHLOG_SUFFIX, | |
426 | O_WRONLY | O_CREAT | O_EXCL, LOGFILE_MASK); | |
1e221354 | 427 | #undef CRASHLOG_SUFFIX |
428 | #undef CRASHLOG_PREFIX | |
429 | } | |
430 | ||
7d149b8e | 431 | /* Note: the goal here is to use only async-signal-safe functions. */ |
d62a17ae | 432 | void zlog_signal(int signo, const char *action |
31364274 | 433 | #ifdef SA_SIGINFO |
d62a17ae | 434 | , |
435 | siginfo_t *siginfo, void *program_counter | |
31364274 | 436 | #endif |
9d303b37 | 437 | ) |
59a06a91 | 438 | { |
d62a17ae | 439 | time_t now; |
440 | char buf[sizeof("DEFAULT: Received signal S at T (si_addr 0xP, PC 0xP); aborting...") | |
441 | + 100]; | |
442 | char *s = buf; | |
443 | char *msgstart = buf; | |
59a06a91 | 444 | #define LOC s,buf+sizeof(buf)-s |
445 | ||
d62a17ae | 446 | time(&now); |
447 | if (zlog_default) { | |
448 | s = str_append(LOC, zlog_default->protoname); | |
449 | *s++ = ':'; | |
450 | *s++ = ' '; | |
451 | msgstart = s; | |
452 | } | |
453 | s = str_append(LOC, "Received signal "); | |
454 | s = num_append(LOC, signo); | |
455 | s = str_append(LOC, " at "); | |
456 | s = num_append(LOC, now); | |
31364274 | 457 | #ifdef SA_SIGINFO |
d62a17ae | 458 | s = str_append(LOC, " (si_addr 0x"); |
d7c0a89a | 459 | s = hex_append(LOC, (unsigned long)(siginfo->si_addr)); |
d62a17ae | 460 | if (program_counter) { |
461 | s = str_append(LOC, ", PC 0x"); | |
d7c0a89a | 462 | s = hex_append(LOC, (unsigned long)program_counter); |
d62a17ae | 463 | } |
464 | s = str_append(LOC, "); "); | |
465 | #else /* SA_SIGINFO */ | |
466 | s = str_append(LOC, "; "); | |
31364274 | 467 | #endif /* SA_SIGINFO */ |
d62a17ae | 468 | s = str_append(LOC, action); |
469 | if (s < buf + sizeof(buf)) | |
470 | *s++ = '\n'; | |
59a06a91 | 471 | |
d62a17ae | 472 | /* N.B. implicit priority is most severe */ |
1e221354 | 473 | #define PRI LOG_CRIT |
274a4a44 | 474 | |
7a49a5b5 | 475 | #define DUMP(FD) write_wrapper(FD, buf, s-buf); |
d62a17ae | 476 | /* If no file logging configured, try to write to fallback log file. */ |
477 | if ((logfile_fd >= 0) || ((logfile_fd = open_crashlog()) >= 0)) | |
478 | DUMP(logfile_fd) | |
479 | if (!zlog_default) | |
480 | DUMP(STDERR_FILENO) | |
481 | else { | |
482 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_STDOUT]) | |
483 | DUMP(STDOUT_FILENO) | |
484 | /* Remove trailing '\n' for monitor and syslog */ | |
485 | *--s = '\0'; | |
486 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_MONITOR]) | |
487 | vty_log_fixed(buf, s - buf); | |
488 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG]) | |
489 | syslog_sigsafe(PRI | zlog_default->facility, msgstart, | |
490 | s - msgstart); | |
491 | } | |
59a06a91 | 492 | #undef DUMP |
493 | ||
d62a17ae | 494 | zlog_backtrace_sigsafe(PRI, |
31364274 | 495 | #ifdef SA_SIGINFO |
d62a17ae | 496 | program_counter |
31364274 | 497 | #else |
d62a17ae | 498 | NULL |
31364274 | 499 | #endif |
9d303b37 | 500 | ); |
d62a17ae | 501 | |
502 | s = buf; | |
503 | struct thread *tc; | |
504 | tc = pthread_getspecific(thread_current); | |
505 | if (!tc) | |
506 | s = str_append(LOC, "no thread information available\n"); | |
507 | else { | |
508 | s = str_append(LOC, "in thread "); | |
509 | s = str_append(LOC, tc->funcname); | |
510 | s = str_append(LOC, " scheduled from "); | |
511 | s = str_append(LOC, tc->schedfrom); | |
512 | s = str_append(LOC, ":"); | |
513 | s = num_append(LOC, tc->schedfrom_line); | |
514 | s = str_append(LOC, "\n"); | |
515 | } | |
d1265948 | 516 | |
69f30024 | 517 | #define DUMP(FD) write_wrapper(FD, buf, s-buf); |
d62a17ae | 518 | /* If no file logging configured, try to write to fallback log file. */ |
519 | if (logfile_fd >= 0) | |
520 | DUMP(logfile_fd) | |
521 | if (!zlog_default) | |
522 | DUMP(STDERR_FILENO) | |
523 | else { | |
524 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_STDOUT]) | |
525 | DUMP(STDOUT_FILENO) | |
526 | /* Remove trailing '\n' for monitor and syslog */ | |
527 | *--s = '\0'; | |
528 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_MONITOR]) | |
529 | vty_log_fixed(buf, s - buf); | |
530 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG]) | |
531 | syslog_sigsafe(PRI | zlog_default->facility, msgstart, | |
532 | s - msgstart); | |
533 | } | |
d1265948 DL |
534 | #undef DUMP |
535 | ||
274a4a44 | 536 | #undef PRI |
063ee52a | 537 | #undef LOC |
538 | } | |
539 | ||
540 | /* Log a backtrace using only async-signal-safe functions. | |
541 | Needs to be enhanced to support syslog logging. */ | |
d62a17ae | 542 | void zlog_backtrace_sigsafe(int priority, void *program_counter) |
063ee52a | 543 | { |
68b8a15f DL |
544 | #ifdef HAVE_LIBUNWIND |
545 | char buf[100]; | |
546 | unw_cursor_t cursor; | |
547 | unw_context_t uc; | |
548 | unw_word_t ip, off, sp; | |
549 | Dl_info dlinfo; | |
550 | ||
551 | unw_getcontext(&uc); | |
552 | unw_init_local(&cursor, &uc); | |
553 | while (unw_step(&cursor) > 0) { | |
554 | char name[128] = "?"; | |
555 | ||
556 | unw_get_reg(&cursor, UNW_REG_IP, &ip); | |
557 | unw_get_reg(&cursor, UNW_REG_SP, &sp); | |
558 | ||
559 | if (unw_is_signal_frame(&cursor)) | |
560 | dprintf(2, " ---- signal ----\n"); | |
561 | ||
562 | if (!unw_get_proc_name(&cursor, buf, sizeof(buf), &off)) { | |
563 | snprintf(name, sizeof(name), "%s+%#lx", | |
564 | buf, (long)off); | |
565 | } | |
566 | dprintf(2, "%-30s %16lx %16lx", name, (long)ip, (long)sp); | |
567 | if (dladdr((void *)ip, &dlinfo)) { | |
568 | dprintf(2, " %s (mapped at %p)", | |
569 | dlinfo.dli_fname, dlinfo.dli_fbase); | |
570 | } | |
571 | dprintf(2, "\n"); | |
572 | ||
573 | } | |
574 | #elif defined(HAVE_GLIBC_BACKTRACE) || defined(HAVE_PRINTSTACK) | |
d62a17ae | 575 | static const char pclabel[] = "Program counter: "; |
576 | void *array[64]; | |
577 | int size; | |
578 | char buf[100]; | |
579 | char *s, **bt = NULL; | |
063ee52a | 580 | #define LOC s,buf+sizeof(buf)-s |
59a06a91 | 581 | |
fb66b29c | 582 | #ifdef HAVE_GLIBC_BACKTRACE |
d62a17ae | 583 | size = backtrace(array, array_size(array)); |
584 | if (size <= 0 || (size_t)size > array_size(array)) | |
585 | return; | |
586 | ||
587 | #define DUMP(FD) \ | |
588 | { \ | |
589 | if (program_counter) { \ | |
590 | write_wrapper(FD, pclabel, sizeof(pclabel) - 1); \ | |
591 | backtrace_symbols_fd(&program_counter, 1, FD); \ | |
592 | } \ | |
593 | write_wrapper(FD, buf, s - buf); \ | |
594 | backtrace_symbols_fd(array, size, FD); \ | |
595 | } | |
fb66b29c | 596 | #elif defined(HAVE_PRINTSTACK) |
d62a17ae | 597 | #define DUMP(FD) \ |
598 | { \ | |
599 | if (program_counter) \ | |
600 | write_wrapper((FD), pclabel, sizeof(pclabel) - 1); \ | |
601 | write_wrapper((FD), buf, s - buf); \ | |
602 | printstack((FD)); \ | |
603 | } | |
fb66b29c PJ |
604 | #endif /* HAVE_GLIBC_BACKTRACE, HAVE_PRINTSTACK */ |
605 | ||
d62a17ae | 606 | s = buf; |
607 | s = str_append(LOC, "Backtrace for "); | |
608 | s = num_append(LOC, size); | |
609 | s = str_append(LOC, " stack frames:\n"); | |
610 | ||
611 | if ((logfile_fd >= 0) || ((logfile_fd = open_crashlog()) >= 0)) | |
612 | DUMP(logfile_fd) | |
613 | if (!zlog_default) | |
614 | DUMP(STDERR_FILENO) | |
615 | else { | |
616 | if (priority <= zlog_default->maxlvl[ZLOG_DEST_STDOUT]) | |
617 | DUMP(STDOUT_FILENO) | |
618 | /* Remove trailing '\n' for monitor and syslog */ | |
619 | *--s = '\0'; | |
620 | if (priority <= zlog_default->maxlvl[ZLOG_DEST_MONITOR]) | |
621 | vty_log_fixed(buf, s - buf); | |
622 | if (priority <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG]) | |
623 | syslog_sigsafe(priority | zlog_default->facility, buf, | |
624 | s - buf); | |
625 | { | |
626 | int i; | |
94fc1dd4 | 627 | #ifdef HAVE_GLIBC_BACKTRACE |
d62a17ae | 628 | bt = backtrace_symbols(array, size); |
94fc1dd4 | 629 | #endif |
d62a17ae | 630 | /* Just print the function addresses. */ |
631 | for (i = 0; i < size; i++) { | |
632 | s = buf; | |
633 | if (bt) | |
634 | s = str_append(LOC, bt[i]); | |
635 | else { | |
636 | s = str_append(LOC, "[bt "); | |
637 | s = num_append(LOC, i); | |
638 | s = str_append(LOC, "] 0x"); | |
d7c0a89a QY |
639 | s = hex_append( |
640 | LOC, (unsigned long)(array[i])); | |
d62a17ae | 641 | } |
642 | *s = '\0'; | |
643 | if (priority | |
644 | <= zlog_default->maxlvl[ZLOG_DEST_MONITOR]) | |
645 | vty_log_fixed(buf, s - buf); | |
646 | if (priority | |
647 | <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG]) | |
648 | syslog_sigsafe( | |
649 | priority | |
650 | | zlog_default | |
651 | ->facility, | |
652 | buf, s - buf); | |
653 | } | |
654 | if (bt) | |
655 | free(bt); | |
656 | } | |
657 | } | |
59a06a91 | 658 | #undef DUMP |
59a06a91 | 659 | #undef LOC |
fb66b29c | 660 | #endif /* HAVE_STRACK_TRACE */ |
063ee52a | 661 | } |
662 | ||
d62a17ae | 663 | void zlog_backtrace(int priority) |
063ee52a | 664 | { |
68b8a15f DL |
665 | #ifdef HAVE_LIBUNWIND |
666 | char buf[100]; | |
667 | unw_cursor_t cursor; | |
668 | unw_context_t uc; | |
669 | unw_word_t ip, off, sp; | |
670 | Dl_info dlinfo; | |
671 | ||
672 | unw_getcontext(&uc); | |
673 | unw_init_local(&cursor, &uc); | |
674 | zlog(priority, "Backtrace:"); | |
675 | while (unw_step(&cursor) > 0) { | |
676 | char name[128] = "?"; | |
677 | ||
678 | unw_get_reg(&cursor, UNW_REG_IP, &ip); | |
679 | unw_get_reg(&cursor, UNW_REG_SP, &sp); | |
680 | ||
681 | if (unw_is_signal_frame(&cursor)) | |
682 | zlog(priority, " ---- signal ----"); | |
683 | ||
684 | if (!unw_get_proc_name(&cursor, buf, sizeof(buf), &off)) | |
685 | snprintf(name, sizeof(name), "%s+%#lx", | |
686 | buf, (long)off); | |
687 | ||
688 | if (dladdr((void *)ip, &dlinfo)) | |
689 | zlog(priority, "%-30s %16lx %16lx %s (mapped at %p)", | |
690 | name, (long)ip, (long)sp, | |
691 | dlinfo.dli_fname, dlinfo.dli_fbase); | |
692 | else | |
693 | zlog(priority, "%-30s %16lx %16lx", | |
694 | name, (long)ip, (long)sp); | |
695 | } | |
696 | #elif defined(HAVE_GLIBC_BACKTRACE) | |
d62a17ae | 697 | void *array[20]; |
698 | int size, i; | |
699 | char **strings; | |
700 | ||
701 | size = backtrace(array, array_size(array)); | |
702 | if (size <= 0 || (size_t)size > array_size(array)) { | |
09c866e3 | 703 | flog_err_sys( |
450971aa | 704 | EC_LIB_SYSTEM_CALL, |
09c866e3 QY |
705 | "Cannot get backtrace, returned invalid # of frames %d " |
706 | "(valid range is between 1 and %lu)", | |
707 | size, (unsigned long)(array_size(array))); | |
d62a17ae | 708 | return; |
709 | } | |
710 | zlog(priority, "Backtrace for %d stack frames:", size); | |
711 | if (!(strings = backtrace_symbols(array, size))) { | |
450971aa | 712 | flog_err_sys(EC_LIB_SYSTEM_CALL, |
09c866e3 | 713 | "Cannot get backtrace symbols (out of memory?)"); |
d62a17ae | 714 | for (i = 0; i < size; i++) |
715 | zlog(priority, "[bt %d] %p", i, array[i]); | |
716 | } else { | |
717 | for (i = 0; i < size; i++) | |
718 | zlog(priority, "[bt %d] %s", i, strings[i]); | |
719 | free(strings); | |
720 | } | |
68b8a15f DL |
721 | #else /* !HAVE_GLIBC_BACKTRACE && !HAVE_LIBUNWIND */ |
722 | zlog(priority, "No backtrace available on this platform."); | |
723 | #endif | |
59a06a91 | 724 | } |
725 | ||
d62a17ae | 726 | void zlog(int priority, const char *format, ...) |
718e3744 | 727 | { |
d62a17ae | 728 | va_list args; |
718e3744 | 729 | |
d62a17ae | 730 | va_start(args, format); |
731 | vzlog(priority, format, args); | |
732 | va_end(args); | |
718e3744 | 733 | } |
734 | ||
d62a17ae | 735 | #define ZLOG_FUNC(FUNCNAME, PRIORITY) \ |
736 | void FUNCNAME(const char *format, ...) \ | |
737 | { \ | |
738 | va_list args; \ | |
739 | va_start(args, format); \ | |
740 | vzlog(PRIORITY, format, args); \ | |
741 | va_end(args); \ | |
742 | } | |
718e3744 | 743 | |
d246bd96 | 744 | ZLOG_FUNC(zlog_err, LOG_ERR) |
718e3744 | 745 | |
d246bd96 | 746 | ZLOG_FUNC(zlog_warn, LOG_WARNING) |
718e3744 | 747 | |
d246bd96 | 748 | ZLOG_FUNC(zlog_info, LOG_INFO) |
718e3744 | 749 | |
d246bd96 | 750 | ZLOG_FUNC(zlog_notice, LOG_NOTICE) |
718e3744 | 751 | |
d246bd96 | 752 | ZLOG_FUNC(zlog_debug, LOG_DEBUG) |
718e3744 | 753 | |
d246bd96 | 754 | #undef ZLOG_FUNC |
718e3744 | 755 | |
d62a17ae | 756 | void zlog_thread_info(int log_level) |
d1265948 | 757 | { |
d62a17ae | 758 | struct thread *tc; |
759 | tc = pthread_getspecific(thread_current); | |
760 | ||
761 | if (tc) | |
762 | zlog(log_level, | |
763 | "Current thread function %s, scheduled from " | |
764 | "file %s, line %u", | |
765 | tc->funcname, tc->schedfrom, tc->schedfrom_line); | |
766 | else | |
767 | zlog(log_level, "Current thread not known/applicable"); | |
d1265948 DL |
768 | } |
769 | ||
d62a17ae | 770 | void _zlog_assert_failed(const char *assertion, const char *file, |
771 | unsigned int line, const char *function) | |
cee3df1e | 772 | { |
d62a17ae | 773 | /* Force fallback file logging? */ |
774 | if (zlog_default && !zlog_default->fp | |
775 | && ((logfile_fd = open_crashlog()) >= 0) | |
776 | && ((zlog_default->fp = fdopen(logfile_fd, "w")) != NULL)) | |
777 | zlog_default->maxlvl[ZLOG_DEST_FILE] = LOG_ERR; | |
778 | zlog(LOG_CRIT, "Assertion `%s' failed in file %s, line %u, function %s", | |
779 | assertion, file, line, (function ? function : "?")); | |
780 | zlog_backtrace(LOG_CRIT); | |
781 | zlog_thread_info(LOG_CRIT); | |
9eed278b | 782 | log_memstats(stderr, "log"); |
d62a17ae | 783 | abort(); |
cee3df1e | 784 | } |
785 | ||
d62a17ae | 786 | void memory_oom(size_t size, const char *name) |
3b4cd783 | 787 | { |
450971aa | 788 | flog_err_sys(EC_LIB_SYSTEM_CALL, |
09c866e3 QY |
789 | "out of memory: failed to allocate %zu bytes for %s" |
790 | "object", | |
791 | size, name); | |
3b4cd783 DL |
792 | zlog_backtrace(LOG_ERR); |
793 | abort(); | |
794 | } | |
6b0655a2 | 795 | |
718e3744 | 796 | /* Open log stream */ |
d7c0a89a QY |
797 | void openzlog(const char *progname, const char *protoname, |
798 | unsigned short instance, int syslog_flags, int syslog_facility) | |
718e3744 | 799 | { |
d62a17ae | 800 | struct zlog *zl; |
d7c0a89a | 801 | unsigned int i; |
718e3744 | 802 | |
d62a17ae | 803 | zl = XCALLOC(MTYPE_ZLOG, sizeof(struct zlog)); |
718e3744 | 804 | |
d62a17ae | 805 | zl->ident = progname; |
806 | zl->protoname = protoname; | |
807 | zl->instance = instance; | |
808 | zl->facility = syslog_facility; | |
809 | zl->syslog_options = syslog_flags; | |
718e3744 | 810 | |
d62a17ae | 811 | /* Set default logging levels. */ |
812 | for (i = 0; i < array_size(zl->maxlvl); i++) | |
813 | zl->maxlvl[i] = ZLOG_DISABLED; | |
814 | zl->maxlvl[ZLOG_DEST_MONITOR] = LOG_DEBUG; | |
815 | zl->default_lvl = LOG_DEBUG; | |
274a4a44 | 816 | |
d62a17ae | 817 | openlog(progname, syslog_flags, zl->facility); |
dd73dca9 QY |
818 | |
819 | pthread_mutex_lock(&loglock); | |
d62a17ae | 820 | zlog_default = zl; |
dd73dca9 | 821 | pthread_mutex_unlock(&loglock); |
3f11a103 DL |
822 | |
823 | #ifdef HAVE_GLIBC_BACKTRACE | |
d62a17ae | 824 | /* work around backtrace() using lazily resolved dynamically linked |
825 | * symbols, which will otherwise cause funny breakage in the SEGV | |
826 | * handler. | |
827 | * (particularly, the dynamic linker can call malloc(), which uses locks | |
828 | * in programs linked with -pthread, thus can deadlock.) */ | |
829 | void *bt[4]; | |
830 | backtrace(bt, array_size(bt)); | |
831 | free(backtrace_symbols(bt, 0)); | |
832 | backtrace_symbols_fd(bt, 0, 0); | |
3f11a103 | 833 | #endif |
718e3744 | 834 | } |
835 | ||
d62a17ae | 836 | void closezlog(void) |
718e3744 | 837 | { |
dd73dca9 | 838 | pthread_mutex_lock(&loglock); |
d62a17ae | 839 | struct zlog *zl = zlog_default; |
bf1013e6 | 840 | |
d62a17ae | 841 | closelog(); |
228da428 | 842 | |
d62a17ae | 843 | if (zl->fp != NULL) |
844 | fclose(zl->fp); | |
718e3744 | 845 | |
d62a17ae | 846 | if (zl->filename != NULL) |
847 | XFREE(MTYPE_ZLOG, zl->filename); | |
7e69d993 | 848 | |
d62a17ae | 849 | XFREE(MTYPE_ZLOG, zl); |
850 | zlog_default = NULL; | |
dd73dca9 | 851 | pthread_mutex_unlock(&loglock); |
718e3744 | 852 | } |
853 | ||
854 | /* Called from command.c. */ | |
d62a17ae | 855 | void zlog_set_level(zlog_dest_t dest, int log_level) |
718e3744 | 856 | { |
dd73dca9 | 857 | pthread_mutex_lock(&loglock); |
d62a17ae | 858 | zlog_default->maxlvl[dest] = log_level; |
dd73dca9 | 859 | pthread_mutex_unlock(&loglock); |
718e3744 | 860 | } |
861 | ||
d62a17ae | 862 | int zlog_set_file(const char *filename, int log_level) |
718e3744 | 863 | { |
dd73dca9 | 864 | struct zlog *zl; |
d62a17ae | 865 | FILE *fp; |
866 | mode_t oldumask; | |
dd73dca9 | 867 | int ret = 1; |
d62a17ae | 868 | |
869 | /* There is opend file. */ | |
870 | zlog_reset_file(); | |
871 | ||
872 | /* Open file. */ | |
873 | oldumask = umask(0777 & ~LOGFILE_MASK); | |
874 | fp = fopen(filename, "a"); | |
875 | umask(oldumask); | |
dd73dca9 QY |
876 | if (fp == NULL) { |
877 | ret = 0; | |
878 | } else { | |
c22fbb9b QY |
879 | pthread_mutex_lock(&loglock); |
880 | zl = zlog_default; | |
881 | ||
dd73dca9 QY |
882 | /* Set flags. */ |
883 | zl->filename = XSTRDUP(MTYPE_ZLOG, filename); | |
884 | zl->maxlvl[ZLOG_DEST_FILE] = log_level; | |
885 | zl->fp = fp; | |
886 | logfile_fd = fileno(fp); | |
c22fbb9b | 887 | pthread_mutex_unlock(&loglock); |
dd73dca9 | 888 | } |
d62a17ae | 889 | |
dd73dca9 | 890 | return ret; |
718e3744 | 891 | } |
892 | ||
893 | /* Reset opend file. */ | |
d62a17ae | 894 | int zlog_reset_file(void) |
718e3744 | 895 | { |
dd73dca9 QY |
896 | pthread_mutex_lock(&loglock); |
897 | ||
d62a17ae | 898 | struct zlog *zl = zlog_default; |
718e3744 | 899 | |
d62a17ae | 900 | if (zl->fp) |
901 | fclose(zl->fp); | |
902 | zl->fp = NULL; | |
903 | logfile_fd = -1; | |
904 | zl->maxlvl[ZLOG_DEST_FILE] = ZLOG_DISABLED; | |
718e3744 | 905 | |
d62a17ae | 906 | if (zl->filename) |
907 | XFREE(MTYPE_ZLOG, zl->filename); | |
908 | zl->filename = NULL; | |
718e3744 | 909 | |
dd73dca9 QY |
910 | pthread_mutex_unlock(&loglock); |
911 | ||
d62a17ae | 912 | return 1; |
718e3744 | 913 | } |
914 | ||
915 | /* Reopen log file. */ | |
d62a17ae | 916 | int zlog_rotate(void) |
718e3744 | 917 | { |
dd73dca9 QY |
918 | pthread_mutex_lock(&loglock); |
919 | ||
d62a17ae | 920 | struct zlog *zl = zlog_default; |
921 | int level; | |
dd73dca9 | 922 | int ret = 1; |
d62a17ae | 923 | |
924 | if (zl->fp) | |
925 | fclose(zl->fp); | |
926 | zl->fp = NULL; | |
927 | logfile_fd = -1; | |
928 | level = zl->maxlvl[ZLOG_DEST_FILE]; | |
929 | zl->maxlvl[ZLOG_DEST_FILE] = ZLOG_DISABLED; | |
930 | ||
931 | if (zl->filename) { | |
932 | mode_t oldumask; | |
933 | int save_errno; | |
934 | ||
935 | oldumask = umask(0777 & ~LOGFILE_MASK); | |
936 | zl->fp = fopen(zl->filename, "a"); | |
937 | save_errno = errno; | |
938 | umask(oldumask); | |
939 | if (zl->fp == NULL) { | |
dce2036b QY |
940 | |
941 | pthread_mutex_unlock(&loglock); | |
942 | ||
09c866e3 | 943 | flog_err_sys( |
450971aa | 944 | EC_LIB_SYSTEM_CALL, |
09c866e3 QY |
945 | "Log rotate failed: cannot open file %s for append: %s", |
946 | zl->filename, safe_strerror(save_errno)); | |
dd73dca9 | 947 | ret = -1; |
dce2036b QY |
948 | |
949 | pthread_mutex_lock(&loglock); | |
dd73dca9 QY |
950 | } else { |
951 | logfile_fd = fileno(zl->fp); | |
952 | zl->maxlvl[ZLOG_DEST_FILE] = level; | |
d62a17ae | 953 | } |
d62a17ae | 954 | } |
955 | ||
dd73dca9 QY |
956 | pthread_mutex_unlock(&loglock); |
957 | ||
958 | return ret; | |
718e3744 | 959 | } |
6b0655a2 | 960 | |
ca359769 | 961 | /* Wrapper around strerror to handle case where it returns NULL. */ |
d62a17ae | 962 | const char *safe_strerror(int errnum) |
ca359769 | 963 | { |
d62a17ae | 964 | const char *s = strerror(errnum); |
965 | return (s != NULL) ? s : "Unknown error"; | |
ca359769 | 966 | } |
f52d13cb | 967 | |
d6d672aa PJ |
968 | #define DESC_ENTRY(T) [(T)] = { (T), (#T), '\0' } |
969 | static const struct zebra_desc_table command_types[] = { | |
d62a17ae | 970 | DESC_ENTRY(ZEBRA_INTERFACE_ADD), |
971 | DESC_ENTRY(ZEBRA_INTERFACE_DELETE), | |
972 | DESC_ENTRY(ZEBRA_INTERFACE_ADDRESS_ADD), | |
973 | DESC_ENTRY(ZEBRA_INTERFACE_ADDRESS_DELETE), | |
974 | DESC_ENTRY(ZEBRA_INTERFACE_UP), | |
975 | DESC_ENTRY(ZEBRA_INTERFACE_DOWN), | |
e0ae31b8 | 976 | DESC_ENTRY(ZEBRA_INTERFACE_SET_MASTER), |
0e51b4a3 RW |
977 | DESC_ENTRY(ZEBRA_ROUTE_ADD), |
978 | DESC_ENTRY(ZEBRA_ROUTE_DELETE), | |
7ea7b86e | 979 | DESC_ENTRY(ZEBRA_ROUTE_NOTIFY_OWNER), |
d62a17ae | 980 | DESC_ENTRY(ZEBRA_REDISTRIBUTE_ADD), |
981 | DESC_ENTRY(ZEBRA_REDISTRIBUTE_DELETE), | |
982 | DESC_ENTRY(ZEBRA_REDISTRIBUTE_DEFAULT_ADD), | |
983 | DESC_ENTRY(ZEBRA_REDISTRIBUTE_DEFAULT_DELETE), | |
984 | DESC_ENTRY(ZEBRA_ROUTER_ID_ADD), | |
985 | DESC_ENTRY(ZEBRA_ROUTER_ID_DELETE), | |
986 | DESC_ENTRY(ZEBRA_ROUTER_ID_UPDATE), | |
987 | DESC_ENTRY(ZEBRA_HELLO), | |
988 | DESC_ENTRY(ZEBRA_NEXTHOP_REGISTER), | |
989 | DESC_ENTRY(ZEBRA_NEXTHOP_UNREGISTER), | |
990 | DESC_ENTRY(ZEBRA_NEXTHOP_UPDATE), | |
991 | DESC_ENTRY(ZEBRA_INTERFACE_NBR_ADDRESS_ADD), | |
992 | DESC_ENTRY(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE), | |
993 | DESC_ENTRY(ZEBRA_INTERFACE_BFD_DEST_UPDATE), | |
994 | DESC_ENTRY(ZEBRA_IMPORT_ROUTE_REGISTER), | |
995 | DESC_ENTRY(ZEBRA_IMPORT_ROUTE_UNREGISTER), | |
996 | DESC_ENTRY(ZEBRA_IMPORT_CHECK_UPDATE), | |
d62a17ae | 997 | DESC_ENTRY(ZEBRA_BFD_DEST_REGISTER), |
998 | DESC_ENTRY(ZEBRA_BFD_DEST_DEREGISTER), | |
999 | DESC_ENTRY(ZEBRA_BFD_DEST_UPDATE), | |
1000 | DESC_ENTRY(ZEBRA_BFD_DEST_REPLAY), | |
74489921 RW |
1001 | DESC_ENTRY(ZEBRA_REDISTRIBUTE_ROUTE_ADD), |
1002 | DESC_ENTRY(ZEBRA_REDISTRIBUTE_ROUTE_DEL), | |
d62a17ae | 1003 | DESC_ENTRY(ZEBRA_VRF_UNREGISTER), |
1004 | DESC_ENTRY(ZEBRA_VRF_ADD), | |
1005 | DESC_ENTRY(ZEBRA_VRF_DELETE), | |
c83c5e44 | 1006 | DESC_ENTRY(ZEBRA_VRF_LABEL), |
d62a17ae | 1007 | DESC_ENTRY(ZEBRA_INTERFACE_VRF_UPDATE), |
1008 | DESC_ENTRY(ZEBRA_BFD_CLIENT_REGISTER), | |
1009 | DESC_ENTRY(ZEBRA_INTERFACE_ENABLE_RADV), | |
1010 | DESC_ENTRY(ZEBRA_INTERFACE_DISABLE_RADV), | |
1011 | DESC_ENTRY(ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB), | |
1012 | DESC_ENTRY(ZEBRA_INTERFACE_LINK_PARAMS), | |
1013 | DESC_ENTRY(ZEBRA_MPLS_LABELS_ADD), | |
1014 | DESC_ENTRY(ZEBRA_MPLS_LABELS_DELETE), | |
d62a17ae | 1015 | DESC_ENTRY(ZEBRA_IPMR_ROUTE_STATS), |
1016 | DESC_ENTRY(ZEBRA_LABEL_MANAGER_CONNECT), | |
f533be73 | 1017 | DESC_ENTRY(ZEBRA_LABEL_MANAGER_CONNECT_ASYNC), |
d62a17ae | 1018 | DESC_ENTRY(ZEBRA_GET_LABEL_CHUNK), |
1019 | DESC_ENTRY(ZEBRA_RELEASE_LABEL_CHUNK), | |
1020 | DESC_ENTRY(ZEBRA_ADVERTISE_ALL_VNI), | |
1a98c087 | 1021 | DESC_ENTRY(ZEBRA_ADVERTISE_DEFAULT_GW), |
31310b25 | 1022 | DESC_ENTRY(ZEBRA_ADVERTISE_SUBNET), |
50f74cf1 | 1023 | DESC_ENTRY(ZEBRA_LOCAL_ES_ADD), |
1024 | DESC_ENTRY(ZEBRA_LOCAL_ES_DEL), | |
d62a17ae | 1025 | DESC_ENTRY(ZEBRA_VNI_ADD), |
1026 | DESC_ENTRY(ZEBRA_VNI_DEL), | |
b7cfce93 MK |
1027 | DESC_ENTRY(ZEBRA_L3VNI_ADD), |
1028 | DESC_ENTRY(ZEBRA_L3VNI_DEL), | |
d62a17ae | 1029 | DESC_ENTRY(ZEBRA_REMOTE_VTEP_ADD), |
1030 | DESC_ENTRY(ZEBRA_REMOTE_VTEP_DEL), | |
1031 | DESC_ENTRY(ZEBRA_MACIP_ADD), | |
1032 | DESC_ENTRY(ZEBRA_MACIP_DEL), | |
31310b25 MK |
1033 | DESC_ENTRY(ZEBRA_IP_PREFIX_ROUTE_ADD), |
1034 | DESC_ENTRY(ZEBRA_IP_PREFIX_ROUTE_DEL), | |
d62a17ae | 1035 | DESC_ENTRY(ZEBRA_REMOTE_MACIP_ADD), |
1036 | DESC_ENTRY(ZEBRA_REMOTE_MACIP_DEL), | |
3950b52c | 1037 | DESC_ENTRY(ZEBRA_DUPLICATE_ADDR_DETECTION), |
6833ae01 | 1038 | DESC_ENTRY(ZEBRA_PW_ADD), |
1039 | DESC_ENTRY(ZEBRA_PW_DELETE), | |
1040 | DESC_ENTRY(ZEBRA_PW_SET), | |
1041 | DESC_ENTRY(ZEBRA_PW_UNSET), | |
1042 | DESC_ENTRY(ZEBRA_PW_STATUS_UPDATE), | |
e16abbb3 DS |
1043 | DESC_ENTRY(ZEBRA_RULE_ADD), |
1044 | DESC_ENTRY(ZEBRA_RULE_DELETE), | |
1045 | DESC_ENTRY(ZEBRA_RULE_NOTIFY_OWNER), | |
75fb51c1 PG |
1046 | DESC_ENTRY(ZEBRA_TABLE_MANAGER_CONNECT), |
1047 | DESC_ENTRY(ZEBRA_GET_TABLE_CHUNK), | |
1048 | DESC_ENTRY(ZEBRA_RELEASE_TABLE_CHUNK), | |
d59c13af PG |
1049 | DESC_ENTRY(ZEBRA_IPSET_CREATE), |
1050 | DESC_ENTRY(ZEBRA_IPSET_DESTROY), | |
1051 | DESC_ENTRY(ZEBRA_IPSET_ENTRY_ADD), | |
1052 | DESC_ENTRY(ZEBRA_IPSET_ENTRY_DELETE), | |
fbac9605 | 1053 | DESC_ENTRY(ZEBRA_VXLAN_FLOOD_CONTROL), |
d6d672aa PJ |
1054 | }; |
1055 | #undef DESC_ENTRY | |
1056 | ||
d62a17ae | 1057 | static const struct zebra_desc_table unknown = {0, "unknown", '?'}; |
d6d672aa | 1058 | |
d7c0a89a | 1059 | static const struct zebra_desc_table *zroute_lookup(unsigned int zroute) |
f52d13cb | 1060 | { |
d7c0a89a | 1061 | unsigned int i; |
d62a17ae | 1062 | |
1063 | if (zroute >= array_size(route_types)) { | |
450971aa | 1064 | flog_err(EC_LIB_DEVELOPMENT, "unknown zebra route type: %u", |
1c50c1c0 | 1065 | zroute); |
d62a17ae | 1066 | return &unknown; |
1067 | } | |
1068 | if (zroute == route_types[zroute].type) | |
1069 | return &route_types[zroute]; | |
1070 | for (i = 0; i < array_size(route_types); i++) { | |
1071 | if (zroute == route_types[i].type) { | |
1072 | zlog_warn( | |
1073 | "internal error: route type table out of order " | |
1074 | "while searching for %u, please notify developers", | |
1075 | zroute); | |
1076 | return &route_types[i]; | |
1077 | } | |
1078 | } | |
450971aa | 1079 | flog_err(EC_LIB_DEVELOPMENT, |
1c50c1c0 | 1080 | "internal error: cannot find route type %u in table!", zroute); |
d62a17ae | 1081 | return &unknown; |
f52d13cb | 1082 | } |
1083 | ||
d7c0a89a | 1084 | const char *zebra_route_string(unsigned int zroute) |
f52d13cb | 1085 | { |
d62a17ae | 1086 | return zroute_lookup(zroute)->string; |
f52d13cb | 1087 | } |
1088 | ||
d7c0a89a | 1089 | char zebra_route_char(unsigned int zroute) |
f52d13cb | 1090 | { |
d62a17ae | 1091 | return zroute_lookup(zroute)->chr; |
f52d13cb | 1092 | } |
d6d672aa | 1093 | |
d62a17ae | 1094 | const char *zserv_command_string(unsigned int command) |
d6d672aa | 1095 | { |
d62a17ae | 1096 | if (command >= array_size(command_types)) { |
450971aa | 1097 | flog_err(EC_LIB_DEVELOPMENT, "unknown zserv command type: %u", |
1c50c1c0 | 1098 | command); |
d62a17ae | 1099 | return unknown.string; |
1100 | } | |
1101 | return command_types[command].string; | |
d6d672aa | 1102 | } |
7514fb77 | 1103 | |
d62a17ae | 1104 | int proto_name2num(const char *s) |
7514fb77 | 1105 | { |
d62a17ae | 1106 | unsigned i; |
7514fb77 | 1107 | |
d62a17ae | 1108 | for (i = 0; i < array_size(route_types); ++i) |
1109 | if (strcasecmp(s, route_types[i].string) == 0) | |
1110 | return route_types[i].type; | |
1111 | return -1; | |
7514fb77 | 1112 | } |
e0ca5fde | 1113 | |
d62a17ae | 1114 | int proto_redistnum(int afi, const char *s) |
e0ca5fde | 1115 | { |
d62a17ae | 1116 | if (!s) |
1117 | return -1; | |
1118 | ||
1119 | if (afi == AFI_IP) { | |
1120 | if (strmatch(s, "kernel")) | |
1121 | return ZEBRA_ROUTE_KERNEL; | |
1122 | else if (strmatch(s, "connected")) | |
1123 | return ZEBRA_ROUTE_CONNECT; | |
1124 | else if (strmatch(s, "static")) | |
1125 | return ZEBRA_ROUTE_STATIC; | |
1126 | else if (strmatch(s, "rip")) | |
1127 | return ZEBRA_ROUTE_RIP; | |
1128 | else if (strmatch(s, "eigrp")) | |
1129 | return ZEBRA_ROUTE_EIGRP; | |
1130 | else if (strmatch(s, "ospf")) | |
1131 | return ZEBRA_ROUTE_OSPF; | |
1132 | else if (strmatch(s, "isis")) | |
1133 | return ZEBRA_ROUTE_ISIS; | |
1134 | else if (strmatch(s, "bgp")) | |
1135 | return ZEBRA_ROUTE_BGP; | |
1136 | else if (strmatch(s, "table")) | |
1137 | return ZEBRA_ROUTE_TABLE; | |
1138 | else if (strmatch(s, "vnc")) | |
1139 | return ZEBRA_ROUTE_VNC; | |
1140 | else if (strmatch(s, "vnc-direct")) | |
1141 | return ZEBRA_ROUTE_VNC_DIRECT; | |
1142 | else if (strmatch(s, "nhrp")) | |
1143 | return ZEBRA_ROUTE_NHRP; | |
1144 | else if (strmatch(s, "babel")) | |
1145 | return ZEBRA_ROUTE_BABEL; | |
8a71d93d DS |
1146 | else if (strmatch(s, "sharp")) |
1147 | return ZEBRA_ROUTE_SHARP; | |
7c0cbd0e CF |
1148 | else if (strmatch(s, "openfabric")) |
1149 | return ZEBRA_ROUTE_OPENFABRIC; | |
d62a17ae | 1150 | } |
1151 | if (afi == AFI_IP6) { | |
1152 | if (strmatch(s, "kernel")) | |
1153 | return ZEBRA_ROUTE_KERNEL; | |
1154 | else if (strmatch(s, "connected")) | |
1155 | return ZEBRA_ROUTE_CONNECT; | |
1156 | else if (strmatch(s, "static")) | |
1157 | return ZEBRA_ROUTE_STATIC; | |
1158 | else if (strmatch(s, "ripng")) | |
1159 | return ZEBRA_ROUTE_RIPNG; | |
1160 | else if (strmatch(s, "ospf6")) | |
1161 | return ZEBRA_ROUTE_OSPF6; | |
1162 | else if (strmatch(s, "isis")) | |
1163 | return ZEBRA_ROUTE_ISIS; | |
1164 | else if (strmatch(s, "bgp")) | |
1165 | return ZEBRA_ROUTE_BGP; | |
1166 | else if (strmatch(s, "table")) | |
1167 | return ZEBRA_ROUTE_TABLE; | |
1168 | else if (strmatch(s, "vnc")) | |
1169 | return ZEBRA_ROUTE_VNC; | |
1170 | else if (strmatch(s, "vnc-direct")) | |
1171 | return ZEBRA_ROUTE_VNC_DIRECT; | |
1172 | else if (strmatch(s, "nhrp")) | |
1173 | return ZEBRA_ROUTE_NHRP; | |
1174 | else if (strmatch(s, "babel")) | |
1175 | return ZEBRA_ROUTE_BABEL; | |
8a71d93d DS |
1176 | else if (strmatch(s, "sharp")) |
1177 | return ZEBRA_ROUTE_SHARP; | |
7c0cbd0e CF |
1178 | else if (strmatch(s, "openfabric")) |
1179 | return ZEBRA_ROUTE_OPENFABRIC; | |
d62a17ae | 1180 | } |
1181 | return -1; | |
e0ca5fde | 1182 | } |
99a6c6cd | 1183 | |
d62a17ae | 1184 | void zlog_hexdump(const void *mem, unsigned int len) |
1185 | { | |
1186 | unsigned long i = 0; | |
1187 | unsigned int j = 0; | |
1188 | unsigned int columns = 8; | |
abccc775 QY |
1189 | /* |
1190 | * 19 bytes for 0xADDRESS: | |
1191 | * 24 bytes for data; 2 chars plus a space per data byte | |
1192 | * 1 byte for space | |
1193 | * 8 bytes for ASCII representation | |
1194 | * 1 byte for a newline | |
1195 | * ===================== | |
1196 | * 53 bytes per 8 bytes of data | |
1197 | * 1 byte for null term | |
1198 | */ | |
e049c5fc QY |
1199 | size_t bs = ((len / 8) + 1) * 53 + 1; |
1200 | char buf[bs]; | |
d62a17ae | 1201 | char *s = buf; |
1202 | ||
e049c5fc QY |
1203 | memset(buf, 0, sizeof(buf)); |
1204 | ||
d62a17ae | 1205 | for (i = 0; i < len + ((len % columns) ? (columns - len % columns) : 0); |
1206 | i++) { | |
1207 | /* print offset */ | |
1208 | if (i % columns == 0) | |
e049c5fc QY |
1209 | s += snprintf(s, bs - (s - buf), |
1210 | "0x%016lx: ", (unsigned long)mem + i); | |
d62a17ae | 1211 | |
1212 | /* print hex data */ | |
1213 | if (i < len) | |
e049c5fc QY |
1214 | s += snprintf(s, bs - (s - buf), "%02x ", |
1215 | 0xFF & ((const char *)mem)[i]); | |
d62a17ae | 1216 | |
1217 | /* end of block, just aligning for ASCII dump */ | |
1218 | else | |
e049c5fc | 1219 | s += snprintf(s, bs - (s - buf), " "); |
d62a17ae | 1220 | |
1221 | /* print ASCII dump */ | |
1222 | if (i % columns == (columns - 1)) { | |
1223 | for (j = i - (columns - 1); j <= i; j++) { | |
e049c5fc QY |
1224 | /* end of block not really printing */ |
1225 | if (j >= len) | |
1226 | s += snprintf(s, bs - (s - buf), " "); | |
1227 | else if (isprint((int)((const char *)mem)[j])) | |
1228 | s += snprintf( | |
1229 | s, bs - (s - buf), "%c", | |
d62a17ae | 1230 | 0xFF & ((const char *)mem)[j]); |
d62a17ae | 1231 | else /* other char */ |
e049c5fc | 1232 | s += snprintf(s, bs - (s - buf), "."); |
d62a17ae | 1233 | } |
e049c5fc | 1234 | s += snprintf(s, bs - (s - buf), "\n"); |
d62a17ae | 1235 | } |
1236 | } | |
1237 | zlog_debug("\n%s", buf); | |
99a6c6cd | 1238 | } |
1f806fc2 | 1239 | |
d62a17ae | 1240 | const char *zlog_sanitize(char *buf, size_t bufsz, const void *in, size_t inlen) |
1f806fc2 | 1241 | { |
d62a17ae | 1242 | const char *inbuf = in; |
1243 | char *pos = buf, *end = buf + bufsz; | |
1244 | const char *iend = inbuf + inlen; | |
1245 | ||
1246 | memset(buf, 0, bufsz); | |
1247 | for (; inbuf < iend; inbuf++) { | |
1248 | /* don't write partial escape sequence */ | |
1249 | if (end - pos < 5) | |
1250 | break; | |
1251 | ||
1252 | if (*inbuf == '\n') | |
1253 | snprintf(pos, end - pos, "\\n"); | |
1254 | else if (*inbuf == '\r') | |
1255 | snprintf(pos, end - pos, "\\r"); | |
1256 | else if (*inbuf == '\t') | |
1257 | snprintf(pos, end - pos, "\\t"); | |
1258 | else if (*inbuf < ' ' || *inbuf == '"' || *inbuf >= 127) | |
1259 | snprintf(pos, end - pos, "\\x%02hhx", *inbuf); | |
1260 | else | |
1261 | *pos = *inbuf; | |
1262 | ||
1263 | pos += strlen(pos); | |
1264 | } | |
1265 | return buf; | |
1f806fc2 | 1266 | } |