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Commit | Line | Data |
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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" | |
7d149b8e | 31 | #ifndef SUNOS_5 |
32 | #include <sys/un.h> | |
33 | #endif | |
30a2231a PJ |
34 | /* for printstack on solaris */ |
35 | #ifdef HAVE_UCONTEXT_H | |
36 | #include <ucontext.h> | |
37 | #endif | |
718e3744 | 38 | |
4a1ab8e4 DL |
39 | DEFINE_MTYPE_STATIC(LIB, ZLOG, "Logging") |
40 | ||
d62a17ae | 41 | static int logfile_fd = -1; /* Used in signal handler. */ |
1e221354 | 42 | |
718e3744 | 43 | struct zlog *zlog_default = NULL; |
d34cb7f0 | 44 | bool zlog_startup_stderr = true; |
718e3744 | 45 | |
dd73dca9 QY |
46 | /* lock protecting zlog_default for mt-safe zlog */ |
47 | pthread_mutex_t loglock = PTHREAD_MUTEX_INITIALIZER; | |
48 | ||
d62a17ae | 49 | const char *zlog_priority[] = { |
50 | "emergencies", "alerts", "critical", "errors", "warnings", | |
51 | "notifications", "informational", "debugging", NULL, | |
718e3744 | 52 | }; |
718e3744 | 53 | |
7a49a5b5 DS |
54 | /* |
55 | * write_wrapper | |
56 | * | |
57 | * glibc has declared that the return value from write *must* not be | |
58 | * ignored. | |
59 | * gcc see's this problem and issues a warning for the line. | |
60 | * | |
61 | * Why is this a big deal you say? Because both of them are right | |
62 | * and if you have -Werror enabled then all calls to write | |
63 | * generate a build error and the build stops. | |
64 | * | |
65 | * clang has helpfully allowed this construct: | |
66 | * (void)write(...) | |
67 | * to tell the compiler yeah I know it has a return value | |
68 | * I don't care about it at this time. | |
69 | * gcc doesn't have this ability. | |
70 | * | |
71 | * This code was written such that it didn't care about the | |
72 | * return value from write. At this time do I want | |
73 | * to go through and fix and test this code for correctness. | |
74 | * So just wrapper the bad behavior and move on. | |
75 | */ | |
d62a17ae | 76 | static void write_wrapper(int fd, const void *buf, size_t count) |
7a49a5b5 | 77 | { |
d62a17ae | 78 | if (write(fd, buf, count) <= 0) |
79 | return; | |
7a49a5b5 | 80 | |
d62a17ae | 81 | return; |
7a49a5b5 | 82 | } |
6b0655a2 | 83 | |
56b40679 QY |
84 | /** |
85 | * Looks up a message in a message list by key. | |
86 | * | |
87 | * If the message is not found, returns the provided error message. | |
88 | * | |
89 | * Terminates when it hits a struct message that's all zeros. | |
90 | * | |
91 | * @param mz the message list | |
92 | * @param kz the message key | |
93 | * @param nf the message to return if not found | |
94 | * @return the message | |
95 | */ | |
d62a17ae | 96 | const char *lookup_msg(const struct message *mz, int kz, const char *nf) |
56b40679 | 97 | { |
d62a17ae | 98 | static struct message nt = {0}; |
99 | const char *rz = nf ? nf : "(no message found)"; | |
100 | const struct message *pnt; | |
101 | for (pnt = mz; memcmp(pnt, &nt, sizeof(struct message)); pnt++) | |
102 | if (pnt->key == kz) { | |
103 | rz = pnt->str ? pnt->str : rz; | |
104 | break; | |
105 | } | |
106 | return rz; | |
56b40679 | 107 | } |
718e3744 | 108 | |
56b40679 | 109 | /* For time string format. */ |
d62a17ae | 110 | size_t quagga_timestamp(int timestamp_precision, char *buf, size_t buflen) |
718e3744 | 111 | { |
d62a17ae | 112 | static struct { |
113 | time_t last; | |
114 | size_t len; | |
115 | char buf[28]; | |
116 | } cache; | |
117 | struct timeval clock; | |
118 | ||
119 | gettimeofday(&clock, NULL); | |
120 | ||
121 | /* first, we update the cache if the time has changed */ | |
122 | if (cache.last != clock.tv_sec) { | |
123 | struct tm *tm; | |
124 | cache.last = clock.tv_sec; | |
125 | tm = localtime(&cache.last); | |
126 | cache.len = strftime(cache.buf, sizeof(cache.buf), | |
127 | "%Y/%m/%d %H:%M:%S", tm); | |
128 | } | |
129 | /* note: it's not worth caching the subsecond part, because | |
130 | chances are that back-to-back calls are not sufficiently close | |
131 | together | |
132 | for the clock not to have ticked forward */ | |
133 | ||
134 | if (buflen > cache.len) { | |
135 | memcpy(buf, cache.buf, cache.len); | |
136 | if ((timestamp_precision > 0) | |
137 | && (buflen > cache.len + 1 + timestamp_precision)) { | |
138 | /* should we worry about locale issues? */ | |
139 | static const int divisor[] = {0, 100000, 10000, 1000, | |
140 | 100, 10, 1}; | |
141 | int prec; | |
142 | char *p = buf + cache.len + 1 | |
143 | + (prec = timestamp_precision); | |
144 | *p-- = '\0'; | |
145 | while (prec > 6) | |
146 | /* this is unlikely to happen, but protect anyway */ | |
147 | { | |
148 | *p-- = '0'; | |
149 | prec--; | |
150 | } | |
151 | clock.tv_usec /= divisor[prec]; | |
152 | do { | |
153 | *p-- = '0' + (clock.tv_usec % 10); | |
154 | clock.tv_usec /= 10; | |
155 | } while (--prec > 0); | |
156 | *p = '.'; | |
157 | return cache.len + 1 + timestamp_precision; | |
158 | } | |
159 | buf[cache.len] = '\0'; | |
160 | return cache.len; | |
1ed72e0b | 161 | } |
d62a17ae | 162 | if (buflen > 0) |
163 | buf[0] = '\0'; | |
164 | return 0; | |
1ed72e0b | 165 | } |
718e3744 | 166 | |
1ed72e0b | 167 | /* Utility routine for current time printing. */ |
d62a17ae | 168 | static void time_print(FILE *fp, struct timestamp_control *ctl) |
1ed72e0b | 169 | { |
d62a17ae | 170 | if (!ctl->already_rendered) { |
171 | ctl->len = quagga_timestamp(ctl->precision, ctl->buf, | |
172 | sizeof(ctl->buf)); | |
173 | ctl->already_rendered = 1; | |
174 | } | |
175 | fprintf(fp, "%s ", ctl->buf); | |
718e3744 | 176 | } |
d62a17ae | 177 | |
6b0655a2 | 178 | |
d34cb7f0 | 179 | static void vzlog_file(struct zlog *zl, struct timestamp_control *tsctl, |
996c9314 LB |
180 | const char *proto_str, int record_priority, int priority, |
181 | FILE *fp, const char *format, va_list args) | |
d34cb7f0 DL |
182 | { |
183 | va_list ac; | |
184 | ||
185 | time_print(fp, tsctl); | |
186 | if (record_priority) | |
187 | fprintf(fp, "%s: ", zlog_priority[priority]); | |
188 | ||
189 | fprintf(fp, "%s", proto_str); | |
190 | va_copy(ac, args); | |
191 | vfprintf(fp, format, ac); | |
192 | va_end(ac); | |
193 | fprintf(fp, "\n"); | |
194 | fflush(fp); | |
195 | } | |
196 | ||
718e3744 | 197 | /* va_list version of zlog. */ |
d62a17ae | 198 | void vzlog(int priority, const char *format, va_list args) |
718e3744 | 199 | { |
dd73dca9 QY |
200 | pthread_mutex_lock(&loglock); |
201 | ||
d62a17ae | 202 | char proto_str[32]; |
203 | int original_errno = errno; | |
204 | struct timestamp_control tsctl; | |
205 | tsctl.already_rendered = 0; | |
206 | struct zlog *zl = zlog_default; | |
207 | ||
208 | /* When zlog_default is also NULL, use stderr for logging. */ | |
209 | if (zl == NULL) { | |
210 | tsctl.precision = 0; | |
211 | time_print(stderr, &tsctl); | |
212 | fprintf(stderr, "%s: ", "unknown"); | |
213 | vfprintf(stderr, format, args); | |
214 | fprintf(stderr, "\n"); | |
215 | fflush(stderr); | |
216 | ||
217 | /* In this case we return at here. */ | |
218 | errno = original_errno; | |
dd73dca9 | 219 | pthread_mutex_unlock(&loglock); |
d62a17ae | 220 | return; |
221 | } | |
222 | tsctl.precision = zl->timestamp_precision; | |
223 | ||
224 | /* Syslog output */ | |
225 | if (priority <= zl->maxlvl[ZLOG_DEST_SYSLOG]) { | |
226 | va_list ac; | |
227 | va_copy(ac, args); | |
228 | vsyslog(priority | zlog_default->facility, format, ac); | |
229 | va_end(ac); | |
230 | } | |
231 | ||
232 | if (zl->instance) | |
233 | sprintf(proto_str, "%s[%d]: ", zl->protoname, zl->instance); | |
234 | else | |
235 | sprintf(proto_str, "%s: ", zl->protoname); | |
236 | ||
237 | /* File output. */ | |
d34cb7f0 | 238 | if ((priority <= zl->maxlvl[ZLOG_DEST_FILE]) && zl->fp) |
996c9314 LB |
239 | vzlog_file(zl, &tsctl, proto_str, zl->record_priority, priority, |
240 | zl->fp, format, args); | |
d62a17ae | 241 | |
d34cb7f0 DL |
242 | /* fixed-config logging to stderr while we're stating up & haven't |
243 | * daemonized / reached mainloop yet | |
244 | * | |
245 | * note the "else" on stdout output -- we don't want to print the same | |
246 | * message to both stderr and stdout. */ | |
247 | if (zlog_startup_stderr && priority <= LOG_WARNING) | |
996c9314 LB |
248 | vzlog_file(zl, &tsctl, proto_str, 1, priority, stderr, format, |
249 | args); | |
d34cb7f0 | 250 | else if (priority <= zl->maxlvl[ZLOG_DEST_STDOUT]) |
996c9314 LB |
251 | vzlog_file(zl, &tsctl, proto_str, zl->record_priority, priority, |
252 | stdout, format, args); | |
d62a17ae | 253 | |
254 | /* Terminal monitor. */ | |
255 | if (priority <= zl->maxlvl[ZLOG_DEST_MONITOR]) | |
256 | vty_log((zl->record_priority ? zlog_priority[priority] : NULL), | |
257 | proto_str, format, &tsctl, args); | |
258 | ||
259 | errno = original_errno; | |
dd73dca9 | 260 | pthread_mutex_unlock(&loglock); |
718e3744 | 261 | } |
262 | ||
d62a17ae | 263 | int vzlog_test(int priority) |
65efcfce | 264 | { |
dd73dca9 QY |
265 | pthread_mutex_lock(&loglock); |
266 | ||
267 | int ret = 0; | |
268 | ||
d62a17ae | 269 | struct zlog *zl = zlog_default; |
270 | ||
271 | /* When zlog_default is also NULL, use stderr for logging. */ | |
dd73dca9 QY |
272 | if (zl == NULL) |
273 | ret = 1; | |
d62a17ae | 274 | /* Syslog output */ |
dd73dca9 QY |
275 | else if (priority <= zl->maxlvl[ZLOG_DEST_SYSLOG]) |
276 | ret = 1; | |
d62a17ae | 277 | /* File output. */ |
dd73dca9 QY |
278 | else if ((priority <= zl->maxlvl[ZLOG_DEST_FILE]) && zl->fp) |
279 | ret = 1; | |
d62a17ae | 280 | /* stdout output. */ |
dd73dca9 QY |
281 | else if (priority <= zl->maxlvl[ZLOG_DEST_STDOUT]) |
282 | ret = 1; | |
d62a17ae | 283 | /* Terminal monitor. */ |
dd73dca9 QY |
284 | else if (priority <= zl->maxlvl[ZLOG_DEST_MONITOR]) |
285 | ret = 1; | |
d62a17ae | 286 | |
dd73dca9 QY |
287 | pthread_mutex_unlock(&loglock); |
288 | ||
289 | return ret; | |
65efcfce LB |
290 | } |
291 | ||
d62a17ae | 292 | static char *str_append(char *dst, int len, const char *src) |
59a06a91 | 293 | { |
d62a17ae | 294 | while ((len-- > 0) && *src) |
295 | *dst++ = *src++; | |
296 | return dst; | |
59a06a91 | 297 | } |
298 | ||
d7c0a89a | 299 | static char *num_append(char *s, int len, unsigned long x) |
59a06a91 | 300 | { |
d62a17ae | 301 | char buf[30]; |
302 | char *t; | |
303 | ||
304 | if (!x) | |
305 | return str_append(s, len, "0"); | |
306 | *(t = &buf[sizeof(buf) - 1]) = '\0'; | |
307 | while (x && (t > buf)) { | |
308 | *--t = '0' + (x % 10); | |
309 | x /= 10; | |
310 | } | |
311 | return str_append(s, len, t); | |
59a06a91 | 312 | } |
313 | ||
fb66b29c | 314 | #if defined(SA_SIGINFO) || defined(HAVE_STACK_TRACE) |
d7c0a89a | 315 | static char *hex_append(char *s, int len, unsigned long x) |
7d149b8e | 316 | { |
d62a17ae | 317 | char buf[30]; |
318 | char *t; | |
319 | ||
320 | if (!x) | |
321 | return str_append(s, len, "0"); | |
322 | *(t = &buf[sizeof(buf) - 1]) = '\0'; | |
323 | while (x && (t > buf)) { | |
d7c0a89a | 324 | unsigned int cc = (x % 16); |
d62a17ae | 325 | *--t = ((cc < 10) ? ('0' + cc) : ('a' + cc - 10)); |
326 | x /= 16; | |
327 | } | |
328 | return str_append(s, len, t); | |
7d149b8e | 329 | } |
31364274 | 330 | #endif |
7d149b8e | 331 | |
7d149b8e | 332 | /* Needs to be enhanced to support Solaris. */ |
d62a17ae | 333 | static int syslog_connect(void) |
7d149b8e | 334 | { |
335 | #ifdef SUNOS_5 | |
d62a17ae | 336 | return -1; |
7d149b8e | 337 | #else |
d62a17ae | 338 | int fd; |
339 | char *s; | |
340 | struct sockaddr_un addr; | |
7d149b8e | 341 | |
d62a17ae | 342 | if ((fd = socket(AF_UNIX, SOCK_DGRAM, 0)) < 0) |
343 | return -1; | |
344 | addr.sun_family = AF_UNIX; | |
7d149b8e | 345 | #ifdef _PATH_LOG |
346 | #define SYSLOG_SOCKET_PATH _PATH_LOG | |
347 | #else | |
348 | #define SYSLOG_SOCKET_PATH "/dev/log" | |
349 | #endif | |
d62a17ae | 350 | s = str_append(addr.sun_path, sizeof(addr.sun_path), |
351 | SYSLOG_SOCKET_PATH); | |
7d149b8e | 352 | #undef SYSLOG_SOCKET_PATH |
d62a17ae | 353 | *s = '\0'; |
354 | if (connect(fd, (struct sockaddr *)&addr, sizeof(addr)) < 0) { | |
355 | close(fd); | |
356 | return -1; | |
357 | } | |
358 | return fd; | |
7d149b8e | 359 | #endif |
360 | } | |
361 | ||
d62a17ae | 362 | static void syslog_sigsafe(int priority, const char *msg, size_t msglen) |
7d149b8e | 363 | { |
d62a17ae | 364 | static int syslog_fd = -1; |
365 | char buf[sizeof("<1234567890>ripngd[1234567890]: ") + msglen + 50]; | |
366 | char *s; | |
7d149b8e | 367 | |
d62a17ae | 368 | if ((syslog_fd < 0) && ((syslog_fd = syslog_connect()) < 0)) |
369 | return; | |
7d149b8e | 370 | |
371 | #define LOC s,buf+sizeof(buf)-s | |
d62a17ae | 372 | s = buf; |
373 | s = str_append(LOC, "<"); | |
374 | s = num_append(LOC, priority); | |
375 | s = str_append(LOC, ">"); | |
376 | /* forget about the timestamp, too difficult in a signal handler */ | |
377 | s = str_append(LOC, zlog_default->ident); | |
378 | if (zlog_default->syslog_options & LOG_PID) { | |
379 | s = str_append(LOC, "["); | |
380 | s = num_append(LOC, getpid()); | |
381 | s = str_append(LOC, "]"); | |
382 | } | |
383 | s = str_append(LOC, ": "); | |
384 | s = str_append(LOC, msg); | |
385 | write_wrapper(syslog_fd, buf, s - buf); | |
7d149b8e | 386 | #undef LOC |
387 | } | |
388 | ||
d62a17ae | 389 | static int open_crashlog(void) |
1e221354 | 390 | { |
391 | #define CRASHLOG_PREFIX "/var/tmp/quagga." | |
392 | #define CRASHLOG_SUFFIX "crashlog" | |
d62a17ae | 393 | if (zlog_default && zlog_default->ident) { |
394 | /* Avoid strlen since it is not async-signal-safe. */ | |
395 | const char *p; | |
396 | size_t ilen; | |
397 | ||
398 | for (p = zlog_default->ident, ilen = 0; *p; p++) | |
399 | ilen++; | |
400 | { | |
401 | char buf[sizeof(CRASHLOG_PREFIX) + ilen | |
402 | + sizeof(CRASHLOG_SUFFIX) + 3]; | |
403 | char *s = buf; | |
1e221354 | 404 | #define LOC s,buf+sizeof(buf)-s |
d62a17ae | 405 | s = str_append(LOC, CRASHLOG_PREFIX); |
406 | s = str_append(LOC, zlog_default->ident); | |
407 | s = str_append(LOC, "."); | |
408 | s = str_append(LOC, CRASHLOG_SUFFIX); | |
1e221354 | 409 | #undef LOC |
d62a17ae | 410 | *s = '\0'; |
411 | return open(buf, O_WRONLY | O_CREAT | O_EXCL, | |
412 | LOGFILE_MASK); | |
413 | } | |
414 | } | |
415 | return open(CRASHLOG_PREFIX CRASHLOG_SUFFIX, | |
416 | O_WRONLY | O_CREAT | O_EXCL, LOGFILE_MASK); | |
1e221354 | 417 | #undef CRASHLOG_SUFFIX |
418 | #undef CRASHLOG_PREFIX | |
419 | } | |
420 | ||
7d149b8e | 421 | /* Note: the goal here is to use only async-signal-safe functions. */ |
d62a17ae | 422 | void zlog_signal(int signo, const char *action |
31364274 | 423 | #ifdef SA_SIGINFO |
d62a17ae | 424 | , |
425 | siginfo_t *siginfo, void *program_counter | |
31364274 | 426 | #endif |
9d303b37 | 427 | ) |
59a06a91 | 428 | { |
d62a17ae | 429 | time_t now; |
430 | char buf[sizeof("DEFAULT: Received signal S at T (si_addr 0xP, PC 0xP); aborting...") | |
431 | + 100]; | |
432 | char *s = buf; | |
433 | char *msgstart = buf; | |
59a06a91 | 434 | #define LOC s,buf+sizeof(buf)-s |
435 | ||
d62a17ae | 436 | time(&now); |
437 | if (zlog_default) { | |
438 | s = str_append(LOC, zlog_default->protoname); | |
439 | *s++ = ':'; | |
440 | *s++ = ' '; | |
441 | msgstart = s; | |
442 | } | |
443 | s = str_append(LOC, "Received signal "); | |
444 | s = num_append(LOC, signo); | |
445 | s = str_append(LOC, " at "); | |
446 | s = num_append(LOC, now); | |
31364274 | 447 | #ifdef SA_SIGINFO |
d62a17ae | 448 | s = str_append(LOC, " (si_addr 0x"); |
d7c0a89a | 449 | s = hex_append(LOC, (unsigned long)(siginfo->si_addr)); |
d62a17ae | 450 | if (program_counter) { |
451 | s = str_append(LOC, ", PC 0x"); | |
d7c0a89a | 452 | s = hex_append(LOC, (unsigned long)program_counter); |
d62a17ae | 453 | } |
454 | s = str_append(LOC, "); "); | |
455 | #else /* SA_SIGINFO */ | |
456 | s = str_append(LOC, "; "); | |
31364274 | 457 | #endif /* SA_SIGINFO */ |
d62a17ae | 458 | s = str_append(LOC, action); |
459 | if (s < buf + sizeof(buf)) | |
460 | *s++ = '\n'; | |
59a06a91 | 461 | |
d62a17ae | 462 | /* N.B. implicit priority is most severe */ |
1e221354 | 463 | #define PRI LOG_CRIT |
274a4a44 | 464 | |
7a49a5b5 | 465 | #define DUMP(FD) write_wrapper(FD, buf, s-buf); |
d62a17ae | 466 | /* If no file logging configured, try to write to fallback log file. */ |
467 | if ((logfile_fd >= 0) || ((logfile_fd = open_crashlog()) >= 0)) | |
468 | DUMP(logfile_fd) | |
469 | if (!zlog_default) | |
470 | DUMP(STDERR_FILENO) | |
471 | else { | |
472 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_STDOUT]) | |
473 | DUMP(STDOUT_FILENO) | |
474 | /* Remove trailing '\n' for monitor and syslog */ | |
475 | *--s = '\0'; | |
476 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_MONITOR]) | |
477 | vty_log_fixed(buf, s - buf); | |
478 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG]) | |
479 | syslog_sigsafe(PRI | zlog_default->facility, msgstart, | |
480 | s - msgstart); | |
481 | } | |
59a06a91 | 482 | #undef DUMP |
483 | ||
d62a17ae | 484 | zlog_backtrace_sigsafe(PRI, |
31364274 | 485 | #ifdef SA_SIGINFO |
d62a17ae | 486 | program_counter |
31364274 | 487 | #else |
d62a17ae | 488 | NULL |
31364274 | 489 | #endif |
9d303b37 | 490 | ); |
d62a17ae | 491 | |
492 | s = buf; | |
493 | struct thread *tc; | |
494 | tc = pthread_getspecific(thread_current); | |
495 | if (!tc) | |
496 | s = str_append(LOC, "no thread information available\n"); | |
497 | else { | |
498 | s = str_append(LOC, "in thread "); | |
499 | s = str_append(LOC, tc->funcname); | |
500 | s = str_append(LOC, " scheduled from "); | |
501 | s = str_append(LOC, tc->schedfrom); | |
502 | s = str_append(LOC, ":"); | |
503 | s = num_append(LOC, tc->schedfrom_line); | |
504 | s = str_append(LOC, "\n"); | |
505 | } | |
d1265948 | 506 | |
69f30024 | 507 | #define DUMP(FD) write_wrapper(FD, buf, s-buf); |
d62a17ae | 508 | /* If no file logging configured, try to write to fallback log file. */ |
509 | if (logfile_fd >= 0) | |
510 | DUMP(logfile_fd) | |
511 | if (!zlog_default) | |
512 | DUMP(STDERR_FILENO) | |
513 | else { | |
514 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_STDOUT]) | |
515 | DUMP(STDOUT_FILENO) | |
516 | /* Remove trailing '\n' for monitor and syslog */ | |
517 | *--s = '\0'; | |
518 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_MONITOR]) | |
519 | vty_log_fixed(buf, s - buf); | |
520 | if (PRI <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG]) | |
521 | syslog_sigsafe(PRI | zlog_default->facility, msgstart, | |
522 | s - msgstart); | |
523 | } | |
d1265948 DL |
524 | #undef DUMP |
525 | ||
274a4a44 | 526 | #undef PRI |
063ee52a | 527 | #undef LOC |
528 | } | |
529 | ||
530 | /* Log a backtrace using only async-signal-safe functions. | |
531 | Needs to be enhanced to support syslog logging. */ | |
d62a17ae | 532 | void zlog_backtrace_sigsafe(int priority, void *program_counter) |
063ee52a | 533 | { |
fb66b29c | 534 | #ifdef HAVE_STACK_TRACE |
d62a17ae | 535 | static const char pclabel[] = "Program counter: "; |
536 | void *array[64]; | |
537 | int size; | |
538 | char buf[100]; | |
539 | char *s, **bt = NULL; | |
063ee52a | 540 | #define LOC s,buf+sizeof(buf)-s |
59a06a91 | 541 | |
fb66b29c | 542 | #ifdef HAVE_GLIBC_BACKTRACE |
d62a17ae | 543 | size = backtrace(array, array_size(array)); |
544 | if (size <= 0 || (size_t)size > array_size(array)) | |
545 | return; | |
546 | ||
547 | #define DUMP(FD) \ | |
548 | { \ | |
549 | if (program_counter) { \ | |
550 | write_wrapper(FD, pclabel, sizeof(pclabel) - 1); \ | |
551 | backtrace_symbols_fd(&program_counter, 1, FD); \ | |
552 | } \ | |
553 | write_wrapper(FD, buf, s - buf); \ | |
554 | backtrace_symbols_fd(array, size, FD); \ | |
555 | } | |
fb66b29c | 556 | #elif defined(HAVE_PRINTSTACK) |
d62a17ae | 557 | #define DUMP(FD) \ |
558 | { \ | |
559 | if (program_counter) \ | |
560 | write_wrapper((FD), pclabel, sizeof(pclabel) - 1); \ | |
561 | write_wrapper((FD), buf, s - buf); \ | |
562 | printstack((FD)); \ | |
563 | } | |
fb66b29c PJ |
564 | #endif /* HAVE_GLIBC_BACKTRACE, HAVE_PRINTSTACK */ |
565 | ||
d62a17ae | 566 | s = buf; |
567 | s = str_append(LOC, "Backtrace for "); | |
568 | s = num_append(LOC, size); | |
569 | s = str_append(LOC, " stack frames:\n"); | |
570 | ||
571 | if ((logfile_fd >= 0) || ((logfile_fd = open_crashlog()) >= 0)) | |
572 | DUMP(logfile_fd) | |
573 | if (!zlog_default) | |
574 | DUMP(STDERR_FILENO) | |
575 | else { | |
576 | if (priority <= zlog_default->maxlvl[ZLOG_DEST_STDOUT]) | |
577 | DUMP(STDOUT_FILENO) | |
578 | /* Remove trailing '\n' for monitor and syslog */ | |
579 | *--s = '\0'; | |
580 | if (priority <= zlog_default->maxlvl[ZLOG_DEST_MONITOR]) | |
581 | vty_log_fixed(buf, s - buf); | |
582 | if (priority <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG]) | |
583 | syslog_sigsafe(priority | zlog_default->facility, buf, | |
584 | s - buf); | |
585 | { | |
586 | int i; | |
94fc1dd4 | 587 | #ifdef HAVE_GLIBC_BACKTRACE |
d62a17ae | 588 | bt = backtrace_symbols(array, size); |
94fc1dd4 | 589 | #endif |
d62a17ae | 590 | /* Just print the function addresses. */ |
591 | for (i = 0; i < size; i++) { | |
592 | s = buf; | |
593 | if (bt) | |
594 | s = str_append(LOC, bt[i]); | |
595 | else { | |
596 | s = str_append(LOC, "[bt "); | |
597 | s = num_append(LOC, i); | |
598 | s = str_append(LOC, "] 0x"); | |
d7c0a89a QY |
599 | s = hex_append( |
600 | LOC, (unsigned long)(array[i])); | |
d62a17ae | 601 | } |
602 | *s = '\0'; | |
603 | if (priority | |
604 | <= zlog_default->maxlvl[ZLOG_DEST_MONITOR]) | |
605 | vty_log_fixed(buf, s - buf); | |
606 | if (priority | |
607 | <= zlog_default->maxlvl[ZLOG_DEST_SYSLOG]) | |
608 | syslog_sigsafe( | |
609 | priority | |
610 | | zlog_default | |
611 | ->facility, | |
612 | buf, s - buf); | |
613 | } | |
614 | if (bt) | |
615 | free(bt); | |
616 | } | |
617 | } | |
59a06a91 | 618 | #undef DUMP |
59a06a91 | 619 | #undef LOC |
fb66b29c | 620 | #endif /* HAVE_STRACK_TRACE */ |
063ee52a | 621 | } |
622 | ||
d62a17ae | 623 | void zlog_backtrace(int priority) |
063ee52a | 624 | { |
625 | #ifndef HAVE_GLIBC_BACKTRACE | |
d62a17ae | 626 | zlog(priority, "No backtrace available on this platform."); |
063ee52a | 627 | #else |
d62a17ae | 628 | void *array[20]; |
629 | int size, i; | |
630 | char **strings; | |
631 | ||
632 | size = backtrace(array, array_size(array)); | |
633 | if (size <= 0 || (size_t)size > array_size(array)) { | |
634 | zlog_err( | |
635 | "Cannot get backtrace, returned invalid # of frames %d " | |
636 | "(valid range is between 1 and %lu)", | |
637 | size, (unsigned long)(array_size(array))); | |
638 | return; | |
639 | } | |
640 | zlog(priority, "Backtrace for %d stack frames:", size); | |
641 | if (!(strings = backtrace_symbols(array, size))) { | |
642 | zlog_err("Cannot get backtrace symbols (out of memory?)"); | |
643 | for (i = 0; i < size; i++) | |
644 | zlog(priority, "[bt %d] %p", i, array[i]); | |
645 | } else { | |
646 | for (i = 0; i < size; i++) | |
647 | zlog(priority, "[bt %d] %s", i, strings[i]); | |
648 | free(strings); | |
649 | } | |
063ee52a | 650 | #endif /* HAVE_GLIBC_BACKTRACE */ |
59a06a91 | 651 | } |
652 | ||
d62a17ae | 653 | void zlog(int priority, const char *format, ...) |
718e3744 | 654 | { |
d62a17ae | 655 | va_list args; |
718e3744 | 656 | |
d62a17ae | 657 | va_start(args, format); |
658 | vzlog(priority, format, args); | |
659 | va_end(args); | |
718e3744 | 660 | } |
661 | ||
d62a17ae | 662 | #define ZLOG_FUNC(FUNCNAME, PRIORITY) \ |
663 | void FUNCNAME(const char *format, ...) \ | |
664 | { \ | |
665 | va_list args; \ | |
666 | va_start(args, format); \ | |
667 | vzlog(PRIORITY, format, args); \ | |
668 | va_end(args); \ | |
669 | } | |
718e3744 | 670 | |
d246bd96 | 671 | ZLOG_FUNC(zlog_err, LOG_ERR) |
718e3744 | 672 | |
d246bd96 | 673 | ZLOG_FUNC(zlog_warn, LOG_WARNING) |
718e3744 | 674 | |
d246bd96 | 675 | ZLOG_FUNC(zlog_info, LOG_INFO) |
718e3744 | 676 | |
d246bd96 | 677 | ZLOG_FUNC(zlog_notice, LOG_NOTICE) |
718e3744 | 678 | |
d246bd96 | 679 | ZLOG_FUNC(zlog_debug, LOG_DEBUG) |
718e3744 | 680 | |
d246bd96 | 681 | #undef ZLOG_FUNC |
718e3744 | 682 | |
d62a17ae | 683 | void zlog_thread_info(int log_level) |
d1265948 | 684 | { |
d62a17ae | 685 | struct thread *tc; |
686 | tc = pthread_getspecific(thread_current); | |
687 | ||
688 | if (tc) | |
689 | zlog(log_level, | |
690 | "Current thread function %s, scheduled from " | |
691 | "file %s, line %u", | |
692 | tc->funcname, tc->schedfrom, tc->schedfrom_line); | |
693 | else | |
694 | zlog(log_level, "Current thread not known/applicable"); | |
d1265948 DL |
695 | } |
696 | ||
d62a17ae | 697 | void _zlog_assert_failed(const char *assertion, const char *file, |
698 | unsigned int line, const char *function) | |
cee3df1e | 699 | { |
d62a17ae | 700 | /* Force fallback file logging? */ |
701 | if (zlog_default && !zlog_default->fp | |
702 | && ((logfile_fd = open_crashlog()) >= 0) | |
703 | && ((zlog_default->fp = fdopen(logfile_fd, "w")) != NULL)) | |
704 | zlog_default->maxlvl[ZLOG_DEST_FILE] = LOG_ERR; | |
705 | zlog(LOG_CRIT, "Assertion `%s' failed in file %s, line %u, function %s", | |
706 | assertion, file, line, (function ? function : "?")); | |
707 | zlog_backtrace(LOG_CRIT); | |
708 | zlog_thread_info(LOG_CRIT); | |
9eed278b | 709 | log_memstats(stderr, "log"); |
d62a17ae | 710 | abort(); |
cee3df1e | 711 | } |
712 | ||
d62a17ae | 713 | void memory_oom(size_t size, const char *name) |
3b4cd783 | 714 | { |
d62a17ae | 715 | zlog_err( |
716 | "out of memory: failed to allocate %zu bytes for %s" | |
717 | "object", | |
718 | size, name); | |
3b4cd783 DL |
719 | zlog_backtrace(LOG_ERR); |
720 | abort(); | |
721 | } | |
6b0655a2 | 722 | |
718e3744 | 723 | /* Open log stream */ |
d7c0a89a QY |
724 | void openzlog(const char *progname, const char *protoname, |
725 | unsigned short instance, int syslog_flags, int syslog_facility) | |
718e3744 | 726 | { |
d62a17ae | 727 | struct zlog *zl; |
d7c0a89a | 728 | unsigned int i; |
718e3744 | 729 | |
d62a17ae | 730 | zl = XCALLOC(MTYPE_ZLOG, sizeof(struct zlog)); |
718e3744 | 731 | |
d62a17ae | 732 | zl->ident = progname; |
733 | zl->protoname = protoname; | |
734 | zl->instance = instance; | |
735 | zl->facility = syslog_facility; | |
736 | zl->syslog_options = syslog_flags; | |
718e3744 | 737 | |
d62a17ae | 738 | /* Set default logging levels. */ |
739 | for (i = 0; i < array_size(zl->maxlvl); i++) | |
740 | zl->maxlvl[i] = ZLOG_DISABLED; | |
741 | zl->maxlvl[ZLOG_DEST_MONITOR] = LOG_DEBUG; | |
742 | zl->default_lvl = LOG_DEBUG; | |
274a4a44 | 743 | |
d62a17ae | 744 | openlog(progname, syslog_flags, zl->facility); |
dd73dca9 QY |
745 | |
746 | pthread_mutex_lock(&loglock); | |
d62a17ae | 747 | zlog_default = zl; |
dd73dca9 | 748 | pthread_mutex_unlock(&loglock); |
3f11a103 DL |
749 | |
750 | #ifdef HAVE_GLIBC_BACKTRACE | |
d62a17ae | 751 | /* work around backtrace() using lazily resolved dynamically linked |
752 | * symbols, which will otherwise cause funny breakage in the SEGV | |
753 | * handler. | |
754 | * (particularly, the dynamic linker can call malloc(), which uses locks | |
755 | * in programs linked with -pthread, thus can deadlock.) */ | |
756 | void *bt[4]; | |
757 | backtrace(bt, array_size(bt)); | |
758 | free(backtrace_symbols(bt, 0)); | |
759 | backtrace_symbols_fd(bt, 0, 0); | |
3f11a103 | 760 | #endif |
718e3744 | 761 | } |
762 | ||
d62a17ae | 763 | void closezlog(void) |
718e3744 | 764 | { |
dd73dca9 | 765 | pthread_mutex_lock(&loglock); |
d62a17ae | 766 | struct zlog *zl = zlog_default; |
bf1013e6 | 767 | |
d62a17ae | 768 | closelog(); |
228da428 | 769 | |
d62a17ae | 770 | if (zl->fp != NULL) |
771 | fclose(zl->fp); | |
718e3744 | 772 | |
d62a17ae | 773 | if (zl->filename != NULL) |
774 | XFREE(MTYPE_ZLOG, zl->filename); | |
7e69d993 | 775 | |
d62a17ae | 776 | XFREE(MTYPE_ZLOG, zl); |
777 | zlog_default = NULL; | |
dd73dca9 | 778 | pthread_mutex_unlock(&loglock); |
718e3744 | 779 | } |
780 | ||
781 | /* Called from command.c. */ | |
d62a17ae | 782 | void zlog_set_level(zlog_dest_t dest, int log_level) |
718e3744 | 783 | { |
dd73dca9 | 784 | pthread_mutex_lock(&loglock); |
d62a17ae | 785 | zlog_default->maxlvl[dest] = log_level; |
dd73dca9 | 786 | pthread_mutex_unlock(&loglock); |
718e3744 | 787 | } |
788 | ||
d62a17ae | 789 | int zlog_set_file(const char *filename, int log_level) |
718e3744 | 790 | { |
dd73dca9 | 791 | struct zlog *zl; |
d62a17ae | 792 | FILE *fp; |
793 | mode_t oldumask; | |
dd73dca9 | 794 | int ret = 1; |
d62a17ae | 795 | |
796 | /* There is opend file. */ | |
797 | zlog_reset_file(); | |
798 | ||
799 | /* Open file. */ | |
800 | oldumask = umask(0777 & ~LOGFILE_MASK); | |
801 | fp = fopen(filename, "a"); | |
802 | umask(oldumask); | |
dd73dca9 QY |
803 | if (fp == NULL) { |
804 | ret = 0; | |
805 | } else { | |
c22fbb9b QY |
806 | pthread_mutex_lock(&loglock); |
807 | zl = zlog_default; | |
808 | ||
dd73dca9 QY |
809 | /* Set flags. */ |
810 | zl->filename = XSTRDUP(MTYPE_ZLOG, filename); | |
811 | zl->maxlvl[ZLOG_DEST_FILE] = log_level; | |
812 | zl->fp = fp; | |
813 | logfile_fd = fileno(fp); | |
c22fbb9b | 814 | pthread_mutex_unlock(&loglock); |
dd73dca9 | 815 | } |
d62a17ae | 816 | |
dd73dca9 | 817 | return ret; |
718e3744 | 818 | } |
819 | ||
820 | /* Reset opend file. */ | |
d62a17ae | 821 | int zlog_reset_file(void) |
718e3744 | 822 | { |
dd73dca9 QY |
823 | pthread_mutex_lock(&loglock); |
824 | ||
d62a17ae | 825 | struct zlog *zl = zlog_default; |
718e3744 | 826 | |
d62a17ae | 827 | if (zl->fp) |
828 | fclose(zl->fp); | |
829 | zl->fp = NULL; | |
830 | logfile_fd = -1; | |
831 | zl->maxlvl[ZLOG_DEST_FILE] = ZLOG_DISABLED; | |
718e3744 | 832 | |
d62a17ae | 833 | if (zl->filename) |
834 | XFREE(MTYPE_ZLOG, zl->filename); | |
835 | zl->filename = NULL; | |
718e3744 | 836 | |
dd73dca9 QY |
837 | pthread_mutex_unlock(&loglock); |
838 | ||
d62a17ae | 839 | return 1; |
718e3744 | 840 | } |
841 | ||
842 | /* Reopen log file. */ | |
d62a17ae | 843 | int zlog_rotate(void) |
718e3744 | 844 | { |
dd73dca9 QY |
845 | pthread_mutex_lock(&loglock); |
846 | ||
d62a17ae | 847 | struct zlog *zl = zlog_default; |
848 | int level; | |
dd73dca9 | 849 | int ret = 1; |
d62a17ae | 850 | |
851 | if (zl->fp) | |
852 | fclose(zl->fp); | |
853 | zl->fp = NULL; | |
854 | logfile_fd = -1; | |
855 | level = zl->maxlvl[ZLOG_DEST_FILE]; | |
856 | zl->maxlvl[ZLOG_DEST_FILE] = ZLOG_DISABLED; | |
857 | ||
858 | if (zl->filename) { | |
859 | mode_t oldumask; | |
860 | int save_errno; | |
861 | ||
862 | oldumask = umask(0777 & ~LOGFILE_MASK); | |
863 | zl->fp = fopen(zl->filename, "a"); | |
864 | save_errno = errno; | |
865 | umask(oldumask); | |
866 | if (zl->fp == NULL) { | |
867 | zlog_err( | |
868 | "Log rotate failed: cannot open file %s for append: %s", | |
869 | zl->filename, safe_strerror(save_errno)); | |
dd73dca9 QY |
870 | ret = -1; |
871 | } else { | |
872 | logfile_fd = fileno(zl->fp); | |
873 | zl->maxlvl[ZLOG_DEST_FILE] = level; | |
d62a17ae | 874 | } |
d62a17ae | 875 | } |
876 | ||
dd73dca9 QY |
877 | pthread_mutex_unlock(&loglock); |
878 | ||
879 | return ret; | |
718e3744 | 880 | } |
6b0655a2 | 881 | |
ca359769 | 882 | /* Wrapper around strerror to handle case where it returns NULL. */ |
d62a17ae | 883 | const char *safe_strerror(int errnum) |
ca359769 | 884 | { |
d62a17ae | 885 | const char *s = strerror(errnum); |
886 | return (s != NULL) ? s : "Unknown error"; | |
ca359769 | 887 | } |
f52d13cb | 888 | |
d6d672aa PJ |
889 | #define DESC_ENTRY(T) [(T)] = { (T), (#T), '\0' } |
890 | static const struct zebra_desc_table command_types[] = { | |
d62a17ae | 891 | DESC_ENTRY(ZEBRA_INTERFACE_ADD), |
892 | DESC_ENTRY(ZEBRA_INTERFACE_DELETE), | |
893 | DESC_ENTRY(ZEBRA_INTERFACE_ADDRESS_ADD), | |
894 | DESC_ENTRY(ZEBRA_INTERFACE_ADDRESS_DELETE), | |
895 | DESC_ENTRY(ZEBRA_INTERFACE_UP), | |
896 | DESC_ENTRY(ZEBRA_INTERFACE_DOWN), | |
e0ae31b8 | 897 | DESC_ENTRY(ZEBRA_INTERFACE_SET_MASTER), |
0e51b4a3 RW |
898 | DESC_ENTRY(ZEBRA_ROUTE_ADD), |
899 | DESC_ENTRY(ZEBRA_ROUTE_DELETE), | |
7ea7b86e | 900 | DESC_ENTRY(ZEBRA_ROUTE_NOTIFY_OWNER), |
d62a17ae | 901 | DESC_ENTRY(ZEBRA_IPV4_ROUTE_ADD), |
902 | DESC_ENTRY(ZEBRA_IPV4_ROUTE_DELETE), | |
903 | DESC_ENTRY(ZEBRA_IPV6_ROUTE_ADD), | |
904 | DESC_ENTRY(ZEBRA_IPV6_ROUTE_DELETE), | |
905 | DESC_ENTRY(ZEBRA_REDISTRIBUTE_ADD), | |
906 | DESC_ENTRY(ZEBRA_REDISTRIBUTE_DELETE), | |
907 | DESC_ENTRY(ZEBRA_REDISTRIBUTE_DEFAULT_ADD), | |
908 | DESC_ENTRY(ZEBRA_REDISTRIBUTE_DEFAULT_DELETE), | |
909 | DESC_ENTRY(ZEBRA_ROUTER_ID_ADD), | |
910 | DESC_ENTRY(ZEBRA_ROUTER_ID_DELETE), | |
911 | DESC_ENTRY(ZEBRA_ROUTER_ID_UPDATE), | |
912 | DESC_ENTRY(ZEBRA_HELLO), | |
913 | DESC_ENTRY(ZEBRA_NEXTHOP_REGISTER), | |
914 | DESC_ENTRY(ZEBRA_NEXTHOP_UNREGISTER), | |
915 | DESC_ENTRY(ZEBRA_NEXTHOP_UPDATE), | |
916 | DESC_ENTRY(ZEBRA_INTERFACE_NBR_ADDRESS_ADD), | |
917 | DESC_ENTRY(ZEBRA_INTERFACE_NBR_ADDRESS_DELETE), | |
918 | DESC_ENTRY(ZEBRA_INTERFACE_BFD_DEST_UPDATE), | |
919 | DESC_ENTRY(ZEBRA_IMPORT_ROUTE_REGISTER), | |
920 | DESC_ENTRY(ZEBRA_IMPORT_ROUTE_UNREGISTER), | |
921 | DESC_ENTRY(ZEBRA_IMPORT_CHECK_UPDATE), | |
922 | DESC_ENTRY(ZEBRA_IPV4_ROUTE_IPV6_NEXTHOP_ADD), | |
923 | DESC_ENTRY(ZEBRA_BFD_DEST_REGISTER), | |
924 | DESC_ENTRY(ZEBRA_BFD_DEST_DEREGISTER), | |
925 | DESC_ENTRY(ZEBRA_BFD_DEST_UPDATE), | |
926 | DESC_ENTRY(ZEBRA_BFD_DEST_REPLAY), | |
74489921 RW |
927 | DESC_ENTRY(ZEBRA_REDISTRIBUTE_ROUTE_ADD), |
928 | DESC_ENTRY(ZEBRA_REDISTRIBUTE_ROUTE_DEL), | |
d62a17ae | 929 | DESC_ENTRY(ZEBRA_VRF_UNREGISTER), |
930 | DESC_ENTRY(ZEBRA_VRF_ADD), | |
931 | DESC_ENTRY(ZEBRA_VRF_DELETE), | |
c83c5e44 | 932 | DESC_ENTRY(ZEBRA_VRF_LABEL), |
d62a17ae | 933 | DESC_ENTRY(ZEBRA_INTERFACE_VRF_UPDATE), |
934 | DESC_ENTRY(ZEBRA_BFD_CLIENT_REGISTER), | |
935 | DESC_ENTRY(ZEBRA_INTERFACE_ENABLE_RADV), | |
936 | DESC_ENTRY(ZEBRA_INTERFACE_DISABLE_RADV), | |
937 | DESC_ENTRY(ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB), | |
938 | DESC_ENTRY(ZEBRA_INTERFACE_LINK_PARAMS), | |
939 | DESC_ENTRY(ZEBRA_MPLS_LABELS_ADD), | |
940 | DESC_ENTRY(ZEBRA_MPLS_LABELS_DELETE), | |
d62a17ae | 941 | DESC_ENTRY(ZEBRA_IPMR_ROUTE_STATS), |
942 | DESC_ENTRY(ZEBRA_LABEL_MANAGER_CONNECT), | |
e73380ce | 943 | DESC_ENTRY(ZEBRA_LABEL_MANAGER_CONNECT_ASYNC), |
d62a17ae | 944 | DESC_ENTRY(ZEBRA_GET_LABEL_CHUNK), |
945 | DESC_ENTRY(ZEBRA_RELEASE_LABEL_CHUNK), | |
946 | DESC_ENTRY(ZEBRA_ADVERTISE_ALL_VNI), | |
1a98c087 | 947 | DESC_ENTRY(ZEBRA_ADVERTISE_DEFAULT_GW), |
31310b25 | 948 | DESC_ENTRY(ZEBRA_ADVERTISE_SUBNET), |
d62a17ae | 949 | DESC_ENTRY(ZEBRA_VNI_ADD), |
950 | DESC_ENTRY(ZEBRA_VNI_DEL), | |
b7cfce93 MK |
951 | DESC_ENTRY(ZEBRA_L3VNI_ADD), |
952 | DESC_ENTRY(ZEBRA_L3VNI_DEL), | |
d62a17ae | 953 | DESC_ENTRY(ZEBRA_REMOTE_VTEP_ADD), |
954 | DESC_ENTRY(ZEBRA_REMOTE_VTEP_DEL), | |
955 | DESC_ENTRY(ZEBRA_MACIP_ADD), | |
956 | DESC_ENTRY(ZEBRA_MACIP_DEL), | |
31310b25 MK |
957 | DESC_ENTRY(ZEBRA_IP_PREFIX_ROUTE_ADD), |
958 | DESC_ENTRY(ZEBRA_IP_PREFIX_ROUTE_DEL), | |
d62a17ae | 959 | DESC_ENTRY(ZEBRA_REMOTE_MACIP_ADD), |
960 | DESC_ENTRY(ZEBRA_REMOTE_MACIP_DEL), | |
6833ae01 | 961 | DESC_ENTRY(ZEBRA_PW_ADD), |
962 | DESC_ENTRY(ZEBRA_PW_DELETE), | |
963 | DESC_ENTRY(ZEBRA_PW_SET), | |
964 | DESC_ENTRY(ZEBRA_PW_UNSET), | |
965 | DESC_ENTRY(ZEBRA_PW_STATUS_UPDATE), | |
e16abbb3 DS |
966 | DESC_ENTRY(ZEBRA_RULE_ADD), |
967 | DESC_ENTRY(ZEBRA_RULE_DELETE), | |
968 | DESC_ENTRY(ZEBRA_RULE_NOTIFY_OWNER), | |
75fb51c1 PG |
969 | DESC_ENTRY(ZEBRA_TABLE_MANAGER_CONNECT), |
970 | DESC_ENTRY(ZEBRA_GET_TABLE_CHUNK), | |
971 | DESC_ENTRY(ZEBRA_RELEASE_TABLE_CHUNK), | |
d59c13af PG |
972 | DESC_ENTRY(ZEBRA_IPSET_CREATE), |
973 | DESC_ENTRY(ZEBRA_IPSET_DESTROY), | |
974 | DESC_ENTRY(ZEBRA_IPSET_ENTRY_ADD), | |
975 | DESC_ENTRY(ZEBRA_IPSET_ENTRY_DELETE), | |
d6d672aa PJ |
976 | }; |
977 | #undef DESC_ENTRY | |
978 | ||
d62a17ae | 979 | static const struct zebra_desc_table unknown = {0, "unknown", '?'}; |
d6d672aa | 980 | |
d7c0a89a | 981 | static const struct zebra_desc_table *zroute_lookup(unsigned int zroute) |
f52d13cb | 982 | { |
d7c0a89a | 983 | unsigned int i; |
d62a17ae | 984 | |
985 | if (zroute >= array_size(route_types)) { | |
986 | zlog_err("unknown zebra route type: %u", zroute); | |
987 | return &unknown; | |
988 | } | |
989 | if (zroute == route_types[zroute].type) | |
990 | return &route_types[zroute]; | |
991 | for (i = 0; i < array_size(route_types); i++) { | |
992 | if (zroute == route_types[i].type) { | |
993 | zlog_warn( | |
994 | "internal error: route type table out of order " | |
995 | "while searching for %u, please notify developers", | |
996 | zroute); | |
997 | return &route_types[i]; | |
998 | } | |
999 | } | |
1000 | zlog_err("internal error: cannot find route type %u in table!", zroute); | |
1001 | return &unknown; | |
f52d13cb | 1002 | } |
1003 | ||
d7c0a89a | 1004 | const char *zebra_route_string(unsigned int zroute) |
f52d13cb | 1005 | { |
d62a17ae | 1006 | return zroute_lookup(zroute)->string; |
f52d13cb | 1007 | } |
1008 | ||
d7c0a89a | 1009 | char zebra_route_char(unsigned int zroute) |
f52d13cb | 1010 | { |
d62a17ae | 1011 | return zroute_lookup(zroute)->chr; |
f52d13cb | 1012 | } |
d6d672aa | 1013 | |
d62a17ae | 1014 | const char *zserv_command_string(unsigned int command) |
d6d672aa | 1015 | { |
d62a17ae | 1016 | if (command >= array_size(command_types)) { |
1017 | zlog_err("unknown zserv command type: %u", command); | |
1018 | return unknown.string; | |
1019 | } | |
1020 | return command_types[command].string; | |
d6d672aa | 1021 | } |
7514fb77 | 1022 | |
d62a17ae | 1023 | int proto_name2num(const char *s) |
7514fb77 | 1024 | { |
d62a17ae | 1025 | unsigned i; |
7514fb77 | 1026 | |
d62a17ae | 1027 | for (i = 0; i < array_size(route_types); ++i) |
1028 | if (strcasecmp(s, route_types[i].string) == 0) | |
1029 | return route_types[i].type; | |
1030 | return -1; | |
7514fb77 | 1031 | } |
e0ca5fde | 1032 | |
d62a17ae | 1033 | int proto_redistnum(int afi, const char *s) |
e0ca5fde | 1034 | { |
d62a17ae | 1035 | if (!s) |
1036 | return -1; | |
1037 | ||
1038 | if (afi == AFI_IP) { | |
1039 | if (strmatch(s, "kernel")) | |
1040 | return ZEBRA_ROUTE_KERNEL; | |
1041 | else if (strmatch(s, "connected")) | |
1042 | return ZEBRA_ROUTE_CONNECT; | |
1043 | else if (strmatch(s, "static")) | |
1044 | return ZEBRA_ROUTE_STATIC; | |
1045 | else if (strmatch(s, "rip")) | |
1046 | return ZEBRA_ROUTE_RIP; | |
1047 | else if (strmatch(s, "eigrp")) | |
1048 | return ZEBRA_ROUTE_EIGRP; | |
1049 | else if (strmatch(s, "ospf")) | |
1050 | return ZEBRA_ROUTE_OSPF; | |
1051 | else if (strmatch(s, "isis")) | |
1052 | return ZEBRA_ROUTE_ISIS; | |
1053 | else if (strmatch(s, "bgp")) | |
1054 | return ZEBRA_ROUTE_BGP; | |
1055 | else if (strmatch(s, "table")) | |
1056 | return ZEBRA_ROUTE_TABLE; | |
1057 | else if (strmatch(s, "vnc")) | |
1058 | return ZEBRA_ROUTE_VNC; | |
1059 | else if (strmatch(s, "vnc-direct")) | |
1060 | return ZEBRA_ROUTE_VNC_DIRECT; | |
1061 | else if (strmatch(s, "nhrp")) | |
1062 | return ZEBRA_ROUTE_NHRP; | |
1063 | else if (strmatch(s, "babel")) | |
1064 | return ZEBRA_ROUTE_BABEL; | |
8a71d93d DS |
1065 | else if (strmatch(s, "sharp")) |
1066 | return ZEBRA_ROUTE_SHARP; | |
d62a17ae | 1067 | } |
1068 | if (afi == AFI_IP6) { | |
1069 | if (strmatch(s, "kernel")) | |
1070 | return ZEBRA_ROUTE_KERNEL; | |
1071 | else if (strmatch(s, "connected")) | |
1072 | return ZEBRA_ROUTE_CONNECT; | |
1073 | else if (strmatch(s, "static")) | |
1074 | return ZEBRA_ROUTE_STATIC; | |
1075 | else if (strmatch(s, "ripng")) | |
1076 | return ZEBRA_ROUTE_RIPNG; | |
1077 | else if (strmatch(s, "ospf6")) | |
1078 | return ZEBRA_ROUTE_OSPF6; | |
1079 | else if (strmatch(s, "isis")) | |
1080 | return ZEBRA_ROUTE_ISIS; | |
1081 | else if (strmatch(s, "bgp")) | |
1082 | return ZEBRA_ROUTE_BGP; | |
1083 | else if (strmatch(s, "table")) | |
1084 | return ZEBRA_ROUTE_TABLE; | |
1085 | else if (strmatch(s, "vnc")) | |
1086 | return ZEBRA_ROUTE_VNC; | |
1087 | else if (strmatch(s, "vnc-direct")) | |
1088 | return ZEBRA_ROUTE_VNC_DIRECT; | |
1089 | else if (strmatch(s, "nhrp")) | |
1090 | return ZEBRA_ROUTE_NHRP; | |
1091 | else if (strmatch(s, "babel")) | |
1092 | return ZEBRA_ROUTE_BABEL; | |
8a71d93d DS |
1093 | else if (strmatch(s, "sharp")) |
1094 | return ZEBRA_ROUTE_SHARP; | |
d62a17ae | 1095 | } |
1096 | return -1; | |
e0ca5fde | 1097 | } |
99a6c6cd | 1098 | |
d62a17ae | 1099 | void zlog_hexdump(const void *mem, unsigned int len) |
1100 | { | |
1101 | unsigned long i = 0; | |
1102 | unsigned int j = 0; | |
1103 | unsigned int columns = 8; | |
abccc775 QY |
1104 | /* |
1105 | * 19 bytes for 0xADDRESS: | |
1106 | * 24 bytes for data; 2 chars plus a space per data byte | |
1107 | * 1 byte for space | |
1108 | * 8 bytes for ASCII representation | |
1109 | * 1 byte for a newline | |
1110 | * ===================== | |
1111 | * 53 bytes per 8 bytes of data | |
1112 | * 1 byte for null term | |
1113 | */ | |
e049c5fc QY |
1114 | size_t bs = ((len / 8) + 1) * 53 + 1; |
1115 | char buf[bs]; | |
d62a17ae | 1116 | char *s = buf; |
1117 | ||
e049c5fc QY |
1118 | memset(buf, 0, sizeof(buf)); |
1119 | ||
d62a17ae | 1120 | for (i = 0; i < len + ((len % columns) ? (columns - len % columns) : 0); |
1121 | i++) { | |
1122 | /* print offset */ | |
1123 | if (i % columns == 0) | |
e049c5fc QY |
1124 | s += snprintf(s, bs - (s - buf), |
1125 | "0x%016lx: ", (unsigned long)mem + i); | |
d62a17ae | 1126 | |
1127 | /* print hex data */ | |
1128 | if (i < len) | |
e049c5fc QY |
1129 | s += snprintf(s, bs - (s - buf), "%02x ", |
1130 | 0xFF & ((const char *)mem)[i]); | |
d62a17ae | 1131 | |
1132 | /* end of block, just aligning for ASCII dump */ | |
1133 | else | |
e049c5fc | 1134 | s += snprintf(s, bs - (s - buf), " "); |
d62a17ae | 1135 | |
1136 | /* print ASCII dump */ | |
1137 | if (i % columns == (columns - 1)) { | |
1138 | for (j = i - (columns - 1); j <= i; j++) { | |
e049c5fc QY |
1139 | /* end of block not really printing */ |
1140 | if (j >= len) | |
1141 | s += snprintf(s, bs - (s - buf), " "); | |
1142 | else if (isprint((int)((const char *)mem)[j])) | |
1143 | s += snprintf( | |
1144 | s, bs - (s - buf), "%c", | |
d62a17ae | 1145 | 0xFF & ((const char *)mem)[j]); |
d62a17ae | 1146 | else /* other char */ |
e049c5fc | 1147 | s += snprintf(s, bs - (s - buf), "."); |
d62a17ae | 1148 | } |
e049c5fc | 1149 | s += snprintf(s, bs - (s - buf), "\n"); |
d62a17ae | 1150 | } |
1151 | } | |
1152 | zlog_debug("\n%s", buf); | |
99a6c6cd | 1153 | } |
1f806fc2 | 1154 | |
d62a17ae | 1155 | const char *zlog_sanitize(char *buf, size_t bufsz, const void *in, size_t inlen) |
1f806fc2 | 1156 | { |
d62a17ae | 1157 | const char *inbuf = in; |
1158 | char *pos = buf, *end = buf + bufsz; | |
1159 | const char *iend = inbuf + inlen; | |
1160 | ||
1161 | memset(buf, 0, bufsz); | |
1162 | for (; inbuf < iend; inbuf++) { | |
1163 | /* don't write partial escape sequence */ | |
1164 | if (end - pos < 5) | |
1165 | break; | |
1166 | ||
1167 | if (*inbuf == '\n') | |
1168 | snprintf(pos, end - pos, "\\n"); | |
1169 | else if (*inbuf == '\r') | |
1170 | snprintf(pos, end - pos, "\\r"); | |
1171 | else if (*inbuf == '\t') | |
1172 | snprintf(pos, end - pos, "\\t"); | |
1173 | else if (*inbuf < ' ' || *inbuf == '"' || *inbuf >= 127) | |
1174 | snprintf(pos, end - pos, "\\x%02hhx", *inbuf); | |
1175 | else | |
1176 | *pos = *inbuf; | |
1177 | ||
1178 | pos += strlen(pos); | |
1179 | } | |
1180 | return buf; | |
1f806fc2 | 1181 | } |