]>
Commit | Line | Data |
---|---|---|
718e3744 | 1 | /* BGP-4 dump routine |
896014f4 DL |
2 | * Copyright (C) 1999 Kunihiro Ishiguro |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
718e3744 | 20 | |
21 | #include <zebra.h> | |
22 | ||
23 | #include "log.h" | |
24 | #include "stream.h" | |
25 | #include "sockunion.h" | |
26 | #include "command.h" | |
27 | #include "prefix.h" | |
28 | #include "thread.h" | |
0b2aa3a0 | 29 | #include "linklist.h" |
3f9c7369 | 30 | #include "queue.h" |
6e919709 | 31 | #include "memory.h" |
039f3a34 | 32 | #include "filter.h" |
3f9c7369 | 33 | |
718e3744 | 34 | #include "bgpd/bgp_table.h" |
718e3744 | 35 | #include "bgpd/bgpd.h" |
36 | #include "bgpd/bgp_route.h" | |
37 | #include "bgpd/bgp_attr.h" | |
38 | #include "bgpd/bgp_dump.h" | |
7077f45c | 39 | #include "bgpd/bgp_errors.h" |
6b0655a2 | 40 | |
d62a17ae | 41 | enum bgp_dump_type { |
42 | BGP_DUMP_ALL, | |
43 | BGP_DUMP_ALL_ET, | |
44 | BGP_DUMP_UPDATES, | |
45 | BGP_DUMP_UPDATES_ET, | |
46 | BGP_DUMP_ROUTES | |
718e3744 | 47 | }; |
48 | ||
4db5d90a | 49 | static const struct bgp_dump_type_map { |
d62a17ae | 50 | enum bgp_dump_type type; |
51 | const char *str; | |
52 | } bgp_dump_type_map[] = { | |
53 | {BGP_DUMP_ALL, "all"}, {BGP_DUMP_ALL_ET, "all-et"}, | |
54 | {BGP_DUMP_UPDATES, "updates"}, {BGP_DUMP_UPDATES_ET, "updates-et"}, | |
55 | {BGP_DUMP_ROUTES, "routes-mrt"}, {0, NULL}, | |
56 | }; | |
4db5d90a | 57 | |
718e3744 | 58 | enum MRT_MSG_TYPES { |
d62a17ae | 59 | MSG_NULL, |
60 | MSG_START, /* sender is starting up */ | |
61 | MSG_DIE, /* receiver should shut down */ | |
62 | MSG_I_AM_DEAD, /* sender is shutting down */ | |
63 | MSG_PEER_DOWN, /* sender's peer is down */ | |
64 | MSG_PROTOCOL_BGP, /* msg is a BGP packet */ | |
65 | MSG_PROTOCOL_RIP, /* msg is a RIP packet */ | |
66 | MSG_PROTOCOL_IDRP, /* msg is an IDRP packet */ | |
67 | MSG_PROTOCOL_RIPNG, /* msg is a RIPNG packet */ | |
68 | MSG_PROTOCOL_BGP4PLUS, /* msg is a BGP4+ packet */ | |
69 | MSG_PROTOCOL_BGP4PLUS_01, /* msg is a BGP4+ (draft 01) packet */ | |
70 | MSG_PROTOCOL_OSPF, /* msg is an OSPF packet */ | |
71 | MSG_TABLE_DUMP, /* routing table dump */ | |
72 | MSG_TABLE_DUMP_V2 /* routing table dump, version 2 */ | |
718e3744 | 73 | }; |
74 | ||
d62a17ae | 75 | struct bgp_dump { |
76 | enum bgp_dump_type type; | |
718e3744 | 77 | |
d62a17ae | 78 | char *filename; |
718e3744 | 79 | |
d62a17ae | 80 | FILE *fp; |
718e3744 | 81 | |
d62a17ae | 82 | unsigned int interval; |
718e3744 | 83 | |
d62a17ae | 84 | char *interval_str; |
718e3744 | 85 | |
d62a17ae | 86 | struct thread *t_interval; |
718e3744 | 87 | }; |
88 | ||
d62a17ae | 89 | static int bgp_dump_unset(struct bgp_dump *bgp_dump); |
90 | static int bgp_dump_interval_func(struct thread *); | |
4db5d90a | 91 | |
718e3744 | 92 | /* BGP packet dump output buffer. */ |
93 | struct stream *bgp_dump_obuf; | |
94 | ||
95 | /* BGP dump strucuture for 'dump bgp all' */ | |
96 | struct bgp_dump bgp_dump_all; | |
97 | ||
98 | /* BGP dump structure for 'dump bgp updates' */ | |
99 | struct bgp_dump bgp_dump_updates; | |
100 | ||
101 | /* BGP dump structure for 'dump bgp routes' */ | |
102 | struct bgp_dump bgp_dump_routes; | |
103 | ||
d62a17ae | 104 | static FILE *bgp_dump_open_file(struct bgp_dump *bgp_dump) |
718e3744 | 105 | { |
d62a17ae | 106 | int ret; |
107 | time_t clock; | |
108 | struct tm *tm; | |
109 | char fullpath[MAXPATHLEN]; | |
110 | char realpath[MAXPATHLEN]; | |
111 | mode_t oldumask; | |
112 | ||
113 | time(&clock); | |
114 | tm = localtime(&clock); | |
115 | ||
116 | if (bgp_dump->filename[0] != DIRECTORY_SEP) { | |
117 | sprintf(fullpath, "%s/%s", vty_get_cwd(), bgp_dump->filename); | |
118 | ret = strftime(realpath, MAXPATHLEN, fullpath, tm); | |
119 | } else | |
120 | ret = strftime(realpath, MAXPATHLEN, bgp_dump->filename, tm); | |
121 | ||
122 | if (ret == 0) { | |
e50f7cfd | 123 | flog_warn(EC_BGP_DUMP, "bgp_dump_open_file: strftime error"); |
d62a17ae | 124 | return NULL; |
125 | } | |
718e3744 | 126 | |
d62a17ae | 127 | if (bgp_dump->fp) |
128 | fclose(bgp_dump->fp); | |
718e3744 | 129 | |
130 | ||
d62a17ae | 131 | oldumask = umask(0777 & ~LOGFILE_MASK); |
132 | bgp_dump->fp = fopen(realpath, "w"); | |
718e3744 | 133 | |
d62a17ae | 134 | if (bgp_dump->fp == NULL) { |
e50f7cfd | 135 | flog_warn(EC_BGP_DUMP, "bgp_dump_open_file: %s: %s", realpath, |
d62a17ae | 136 | strerror(errno)); |
137 | umask(oldumask); | |
138 | return NULL; | |
139 | } | |
140 | umask(oldumask); | |
718e3744 | 141 | |
d62a17ae | 142 | return bgp_dump->fp; |
718e3744 | 143 | } |
144 | ||
d62a17ae | 145 | static int bgp_dump_interval_add(struct bgp_dump *bgp_dump, int interval) |
718e3744 | 146 | { |
d62a17ae | 147 | int secs_into_day; |
148 | time_t t; | |
149 | struct tm *tm; | |
150 | ||
151 | if (interval > 0) { | |
152 | /* Periodic dump every interval seconds */ | |
153 | if ((interval < 86400) && ((86400 % interval) == 0)) { | |
154 | /* Dump at predictable times: if a day has a whole | |
155 | * number of | |
156 | * intervals, dump every interval seconds starting from | |
157 | * midnight | |
158 | */ | |
159 | (void)time(&t); | |
160 | tm = localtime(&t); | |
161 | secs_into_day = tm->tm_sec + 60 * tm->tm_min | |
162 | + 60 * 60 * tm->tm_hour; | |
163 | interval = interval | |
164 | - secs_into_day % interval; /* always > 0 */ | |
165 | } | |
166 | bgp_dump->t_interval = NULL; | |
167 | thread_add_timer(bm->master, bgp_dump_interval_func, bgp_dump, | |
168 | interval, &bgp_dump->t_interval); | |
169 | } else { | |
170 | /* One-off dump: execute immediately, don't affect any scheduled | |
171 | * dumps */ | |
172 | bgp_dump->t_interval = NULL; | |
173 | thread_add_event(bm->master, bgp_dump_interval_func, bgp_dump, | |
174 | 0, &bgp_dump->t_interval); | |
9834cd0f | 175 | } |
fba3d22b | 176 | |
d62a17ae | 177 | return 0; |
718e3744 | 178 | } |
179 | ||
180 | /* Dump common header. */ | |
d62a17ae | 181 | static void bgp_dump_header(struct stream *obuf, int type, int subtype, |
182 | int dump_type) | |
718e3744 | 183 | { |
d62a17ae | 184 | struct timeval clock; |
185 | long msecs; | |
186 | time_t secs; | |
4db5d90a | 187 | |
d62a17ae | 188 | if ((dump_type == BGP_DUMP_ALL_ET || dump_type == BGP_DUMP_UPDATES_ET) |
189 | && type == MSG_PROTOCOL_BGP4MP) | |
190 | type = MSG_PROTOCOL_BGP4MP_ET; | |
4db5d90a | 191 | |
d62a17ae | 192 | gettimeofday(&clock, NULL); |
718e3744 | 193 | |
d62a17ae | 194 | secs = clock.tv_sec; |
195 | msecs = clock.tv_usec; | |
718e3744 | 196 | |
d62a17ae | 197 | /* Put dump packet header. */ |
198 | stream_putl(obuf, secs); | |
199 | stream_putw(obuf, type); | |
200 | stream_putw(obuf, subtype); | |
201 | stream_putl(obuf, 0); /* len */ | |
4db5d90a | 202 | |
d62a17ae | 203 | /* Adding microseconds for the MRT Extended Header */ |
204 | if (type == MSG_PROTOCOL_BGP4MP_ET) | |
205 | stream_putl(obuf, msecs); | |
718e3744 | 206 | } |
207 | ||
d62a17ae | 208 | static void bgp_dump_set_size(struct stream *s, int type) |
718e3744 | 209 | { |
d62a17ae | 210 | /* |
211 | * The BGP_DUMP_HEADER_SIZE stay at 12 event when ET: | |
212 | * "The Microsecond Timestamp is included in the computation | |
213 | * of the Length field value." (RFC6396 2011) | |
214 | */ | |
215 | stream_putl_at(s, 8, stream_get_endp(s) - BGP_DUMP_HEADER_SIZE); | |
718e3744 | 216 | } |
217 | ||
d62a17ae | 218 | static void bgp_dump_routes_index_table(struct bgp *bgp) |
718e3744 | 219 | { |
d62a17ae | 220 | struct peer *peer; |
221 | struct listnode *node; | |
222 | uint16_t peerno = 1; | |
223 | struct stream *obuf; | |
224 | ||
225 | obuf = bgp_dump_obuf; | |
226 | stream_reset(obuf); | |
227 | ||
228 | /* MRT header */ | |
229 | bgp_dump_header(obuf, MSG_TABLE_DUMP_V2, TABLE_DUMP_V2_PEER_INDEX_TABLE, | |
230 | BGP_DUMP_ROUTES); | |
231 | ||
232 | /* Collector BGP ID */ | |
233 | stream_put_in_addr(obuf, &bgp->router_id); | |
234 | ||
235 | /* View name */ | |
236 | if (bgp->name) { | |
237 | stream_putw(obuf, strlen(bgp->name)); | |
238 | stream_put(obuf, bgp->name, strlen(bgp->name)); | |
239 | } else { | |
240 | stream_putw(obuf, 0); | |
241 | } | |
718e3744 | 242 | |
d62a17ae | 243 | /* Peer count ( plus one extra internal peer ) */ |
244 | stream_putw(obuf, listcount(bgp->peer) + 1); | |
245 | ||
246 | /* Populate fake peer at index 0, for locally originated routes */ | |
247 | /* Peer type (IPv4) */ | |
9d303b37 DL |
248 | stream_putc(obuf, |
249 | TABLE_DUMP_V2_PEER_INDEX_TABLE_AS4 | |
250 | + TABLE_DUMP_V2_PEER_INDEX_TABLE_IP); | |
d62a17ae | 251 | /* Peer BGP ID (0.0.0.0) */ |
252 | stream_putl(obuf, 0); | |
253 | /* Peer IP address (0.0.0.0) */ | |
254 | stream_putl(obuf, 0); | |
255 | /* Peer ASN (0) */ | |
256 | stream_putl(obuf, 0); | |
257 | ||
258 | /* Walk down all peers */ | |
259 | for (ALL_LIST_ELEMENTS_RO(bgp->peer, node, peer)) { | |
260 | ||
261 | /* Peer's type */ | |
262 | if (sockunion_family(&peer->su) == AF_INET) { | |
263 | stream_putc( | |
264 | obuf, | |
265 | TABLE_DUMP_V2_PEER_INDEX_TABLE_AS4 | |
266 | + TABLE_DUMP_V2_PEER_INDEX_TABLE_IP); | |
267 | } else if (sockunion_family(&peer->su) == AF_INET6) { | |
268 | stream_putc( | |
269 | obuf, | |
270 | TABLE_DUMP_V2_PEER_INDEX_TABLE_AS4 | |
271 | + TABLE_DUMP_V2_PEER_INDEX_TABLE_IP6); | |
272 | } | |
273 | ||
274 | /* Peer's BGP ID */ | |
275 | stream_put_in_addr(obuf, &peer->remote_id); | |
276 | ||
277 | /* Peer's IP address */ | |
278 | if (sockunion_family(&peer->su) == AF_INET) { | |
279 | stream_put_in_addr(obuf, &peer->su.sin.sin_addr); | |
280 | } else if (sockunion_family(&peer->su) == AF_INET6) { | |
d7c0a89a | 281 | stream_write(obuf, (uint8_t *)&peer->su.sin6.sin6_addr, |
d62a17ae | 282 | IPV6_MAX_BYTELEN); |
283 | } | |
284 | ||
285 | /* Peer's AS number. */ | |
286 | /* Note that, as this is an AS4 compliant quagga, the RIB is | |
287 | * always AS4 */ | |
288 | stream_putl(obuf, peer->as); | |
289 | ||
290 | /* Store the peer number for this peer */ | |
291 | peer->table_dump_index = peerno; | |
292 | peerno++; | |
293 | } | |
718e3744 | 294 | |
d62a17ae | 295 | bgp_dump_set_size(obuf, MSG_TABLE_DUMP_V2); |
718e3744 | 296 | |
d62a17ae | 297 | fwrite(STREAM_DATA(obuf), stream_get_endp(obuf), 1, bgp_dump_routes.fp); |
298 | fflush(bgp_dump_routes.fp); | |
718e3744 | 299 | } |
300 | ||
0b2aa3a0 | 301 | |
4b7e6066 DS |
302 | static struct bgp_path_info * |
303 | bgp_dump_route_node_record(int afi, struct bgp_node *rn, | |
40381db7 | 304 | struct bgp_path_info *path, unsigned int seq) |
246556b5 | 305 | { |
d62a17ae | 306 | struct stream *obuf; |
307 | size_t sizep; | |
308 | size_t endp; | |
309 | ||
310 | obuf = bgp_dump_obuf; | |
311 | stream_reset(obuf); | |
312 | ||
313 | /* MRT header */ | |
314 | if (afi == AFI_IP) | |
315 | bgp_dump_header(obuf, MSG_TABLE_DUMP_V2, | |
316 | TABLE_DUMP_V2_RIB_IPV4_UNICAST, | |
317 | BGP_DUMP_ROUTES); | |
318 | else if (afi == AFI_IP6) | |
319 | bgp_dump_header(obuf, MSG_TABLE_DUMP_V2, | |
320 | TABLE_DUMP_V2_RIB_IPV6_UNICAST, | |
321 | BGP_DUMP_ROUTES); | |
322 | ||
323 | /* Sequence number */ | |
324 | stream_putl(obuf, seq); | |
325 | ||
326 | /* Prefix length */ | |
327 | stream_putc(obuf, rn->p.prefixlen); | |
328 | ||
329 | /* Prefix */ | |
330 | if (afi == AFI_IP) { | |
331 | /* We'll dump only the useful bits (those not 0), but have to | |
332 | * align on 8 bits */ | |
d7c0a89a | 333 | stream_write(obuf, (uint8_t *)&rn->p.u.prefix4, |
d62a17ae | 334 | (rn->p.prefixlen + 7) / 8); |
335 | } else if (afi == AFI_IP6) { | |
336 | /* We'll dump only the useful bits (those not 0), but have to | |
337 | * align on 8 bits */ | |
d7c0a89a | 338 | stream_write(obuf, (uint8_t *)&rn->p.u.prefix6, |
d62a17ae | 339 | (rn->p.prefixlen + 7) / 8); |
340 | } | |
246556b5 | 341 | |
d62a17ae | 342 | /* Save where we are now, so we can overwride the entry count later */ |
343 | sizep = stream_get_endp(obuf); | |
246556b5 | 344 | |
d62a17ae | 345 | /* Entry count */ |
346 | uint16_t entry_count = 0; | |
246556b5 | 347 | |
d62a17ae | 348 | /* Entry count, note that this is overwritten later */ |
349 | stream_putw(obuf, 0); | |
246556b5 | 350 | |
d62a17ae | 351 | endp = stream_get_endp(obuf); |
40381db7 | 352 | for (; path; path = path->next) { |
d62a17ae | 353 | size_t cur_endp; |
246556b5 | 354 | |
d62a17ae | 355 | /* Peer index */ |
40381db7 | 356 | stream_putw(obuf, path->peer->table_dump_index); |
246556b5 | 357 | |
d62a17ae | 358 | /* Originated */ |
40381db7 | 359 | stream_putl(obuf, time(NULL) - (bgp_clock() - path->uptime)); |
246556b5 | 360 | |
d62a17ae | 361 | /* Dump attribute. */ |
362 | /* Skip prefix & AFI/SAFI for MP_NLRI */ | |
40381db7 | 363 | bgp_dump_routes_attr(obuf, path->attr, &rn->p); |
246556b5 | 364 | |
d62a17ae | 365 | cur_endp = stream_get_endp(obuf); |
366 | if (cur_endp > BGP_MAX_PACKET_SIZE + BGP_DUMP_MSG_HEADER | |
367 | + BGP_DUMP_HEADER_SIZE) { | |
368 | stream_set_endp(obuf, endp); | |
369 | break; | |
370 | } | |
246556b5 | 371 | |
d62a17ae | 372 | entry_count++; |
373 | endp = cur_endp; | |
374 | } | |
246556b5 | 375 | |
d62a17ae | 376 | /* Overwrite the entry count, now that we know the right number */ |
377 | stream_putw_at(obuf, sizep, entry_count); | |
246556b5 | 378 | |
d62a17ae | 379 | bgp_dump_set_size(obuf, MSG_TABLE_DUMP_V2); |
380 | fwrite(STREAM_DATA(obuf), stream_get_endp(obuf), 1, bgp_dump_routes.fp); | |
246556b5 | 381 | |
40381db7 | 382 | return path; |
246556b5 EU |
383 | } |
384 | ||
385 | ||
718e3744 | 386 | /* Runs under child process. */ |
d62a17ae | 387 | static unsigned int bgp_dump_routes_func(int afi, int first_run, |
388 | unsigned int seq) | |
718e3744 | 389 | { |
40381db7 | 390 | struct bgp_path_info *path; |
d62a17ae | 391 | struct bgp_node *rn; |
392 | struct bgp *bgp; | |
393 | struct bgp_table *table; | |
394 | ||
395 | bgp = bgp_get_default(); | |
396 | if (!bgp) | |
397 | return seq; | |
398 | ||
399 | if (bgp_dump_routes.fp == NULL) | |
400 | return seq; | |
401 | ||
402 | /* Note that bgp_dump_routes_index_table will do ipv4 and ipv6 peers, | |
403 | so this should only be done on the first call to | |
404 | bgp_dump_routes_func. | |
405 | ( this function will be called once for ipv4 and once for ipv6 ) */ | |
406 | if (first_run) | |
407 | bgp_dump_routes_index_table(bgp); | |
408 | ||
409 | /* Walk down each BGP route. */ | |
410 | table = bgp->rib[afi][SAFI_UNICAST]; | |
411 | ||
412 | for (rn = bgp_table_top(table); rn; rn = bgp_route_next(rn)) { | |
6f94b685 | 413 | path = bgp_node_get_bgp_path_info(rn); |
40381db7 DS |
414 | while (path) { |
415 | path = bgp_dump_route_node_record(afi, rn, path, seq); | |
d62a17ae | 416 | seq++; |
417 | } | |
418 | } | |
0b2aa3a0 | 419 | |
d62a17ae | 420 | fflush(bgp_dump_routes.fp); |
0b2aa3a0 | 421 | |
d62a17ae | 422 | return seq; |
718e3744 | 423 | } |
424 | ||
d62a17ae | 425 | static int bgp_dump_interval_func(struct thread *t) |
718e3744 | 426 | { |
d62a17ae | 427 | struct bgp_dump *bgp_dump; |
428 | bgp_dump = THREAD_ARG(t); | |
429 | bgp_dump->t_interval = NULL; | |
430 | ||
431 | /* Reschedule dump even if file couldn't be opened this time... */ | |
432 | if (bgp_dump_open_file(bgp_dump) != NULL) { | |
433 | /* In case of bgp_dump_routes, we need special route dump | |
434 | * function. */ | |
435 | if (bgp_dump->type == BGP_DUMP_ROUTES) { | |
436 | unsigned int seq = bgp_dump_routes_func(AFI_IP, 1, 0); | |
437 | bgp_dump_routes_func(AFI_IP6, 0, seq); | |
438 | /* Close the file now. For a RIB dump there's no point | |
439 | * in leaving | |
440 | * it open until the next scheduled dump starts. */ | |
441 | fclose(bgp_dump->fp); | |
442 | bgp_dump->fp = NULL; | |
443 | } | |
9834cd0f | 444 | } |
718e3744 | 445 | |
d62a17ae | 446 | /* if interval is set reschedule */ |
447 | if (bgp_dump->interval > 0) | |
448 | bgp_dump_interval_add(bgp_dump, bgp_dump->interval); | |
fba3d22b | 449 | |
d62a17ae | 450 | return 0; |
718e3744 | 451 | } |
452 | ||
453 | /* Dump common information. */ | |
d62a17ae | 454 | static void bgp_dump_common(struct stream *obuf, struct peer *peer, |
455 | int forceas4) | |
718e3744 | 456 | { |
d62a17ae | 457 | char empty[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
458 | ||
459 | /* Source AS number and Destination AS number. */ | |
460 | if (forceas4 || CHECK_FLAG(peer->cap, PEER_CAP_AS4_RCV)) { | |
461 | stream_putl(obuf, peer->as); | |
462 | stream_putl(obuf, peer->local_as); | |
463 | } else { | |
464 | stream_putw(obuf, peer->as); | |
465 | stream_putw(obuf, peer->local_as); | |
466 | } | |
718e3744 | 467 | |
d62a17ae | 468 | if (peer->su.sa.sa_family == AF_INET) { |
194a4f2c | 469 | stream_putw(obuf, peer->ifp ? peer->ifp->ifindex : 0); |
d62a17ae | 470 | stream_putw(obuf, AFI_IP); |
471 | ||
472 | stream_put(obuf, &peer->su.sin.sin_addr, IPV4_MAX_BYTELEN); | |
473 | ||
474 | if (peer->su_local) | |
475 | stream_put(obuf, &peer->su_local->sin.sin_addr, | |
476 | IPV4_MAX_BYTELEN); | |
477 | else | |
478 | stream_put(obuf, empty, IPV4_MAX_BYTELEN); | |
479 | } else if (peer->su.sa.sa_family == AF_INET6) { | |
480 | /* Interface Index and Address family. */ | |
194a4f2c | 481 | stream_putw(obuf, peer->ifp ? peer->ifp->ifindex : 0); |
d62a17ae | 482 | stream_putw(obuf, AFI_IP6); |
483 | ||
484 | /* Source IP Address and Destination IP Address. */ | |
485 | stream_put(obuf, &peer->su.sin6.sin6_addr, IPV6_MAX_BYTELEN); | |
486 | ||
487 | if (peer->su_local) | |
488 | stream_put(obuf, &peer->su_local->sin6.sin6_addr, | |
489 | IPV6_MAX_BYTELEN); | |
490 | else | |
491 | stream_put(obuf, empty, IPV6_MAX_BYTELEN); | |
492 | } | |
718e3744 | 493 | } |
494 | ||
495 | /* Dump BGP status change. */ | |
d62a17ae | 496 | void bgp_dump_state(struct peer *peer, int status_old, int status_new) |
718e3744 | 497 | { |
d62a17ae | 498 | struct stream *obuf; |
718e3744 | 499 | |
d62a17ae | 500 | /* If dump file pointer is disabled return immediately. */ |
501 | if (bgp_dump_all.fp == NULL) | |
502 | return; | |
718e3744 | 503 | |
d62a17ae | 504 | /* Make dump stream. */ |
505 | obuf = bgp_dump_obuf; | |
506 | stream_reset(obuf); | |
718e3744 | 507 | |
d62a17ae | 508 | bgp_dump_header(obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_STATE_CHANGE_AS4, |
509 | bgp_dump_all.type); | |
510 | bgp_dump_common(obuf, peer, 1); /* force this in as4speak*/ | |
718e3744 | 511 | |
d62a17ae | 512 | stream_putw(obuf, status_old); |
513 | stream_putw(obuf, status_new); | |
718e3744 | 514 | |
d62a17ae | 515 | /* Set length. */ |
516 | bgp_dump_set_size(obuf, MSG_PROTOCOL_BGP4MP); | |
718e3744 | 517 | |
d62a17ae | 518 | /* Write to the stream. */ |
519 | fwrite(STREAM_DATA(obuf), stream_get_endp(obuf), 1, bgp_dump_all.fp); | |
520 | fflush(bgp_dump_all.fp); | |
718e3744 | 521 | } |
522 | ||
d62a17ae | 523 | static void bgp_dump_packet_func(struct bgp_dump *bgp_dump, struct peer *peer, |
524 | struct stream *packet) | |
718e3744 | 525 | { |
d62a17ae | 526 | struct stream *obuf; |
527 | ||
528 | /* If dump file pointer is disabled return immediately. */ | |
529 | if (bgp_dump->fp == NULL) | |
530 | return; | |
531 | ||
532 | /* Make dump stream. */ | |
533 | obuf = bgp_dump_obuf; | |
534 | stream_reset(obuf); | |
535 | ||
536 | /* Dump header and common part. */ | |
537 | if (CHECK_FLAG(peer->cap, PEER_CAP_AS4_RCV)) { | |
538 | bgp_dump_header(obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_MESSAGE_AS4, | |
539 | bgp_dump->type); | |
540 | } else { | |
541 | bgp_dump_header(obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_MESSAGE, | |
542 | bgp_dump->type); | |
543 | } | |
544 | bgp_dump_common(obuf, peer, 0); | |
718e3744 | 545 | |
d62a17ae | 546 | /* Packet contents. */ |
547 | stream_put(obuf, STREAM_DATA(packet), stream_get_endp(packet)); | |
718e3744 | 548 | |
d62a17ae | 549 | /* Set length. */ |
550 | bgp_dump_set_size(obuf, MSG_PROTOCOL_BGP4MP); | |
718e3744 | 551 | |
d62a17ae | 552 | /* Write to the stream. */ |
553 | fwrite(STREAM_DATA(obuf), stream_get_endp(obuf), 1, bgp_dump->fp); | |
554 | fflush(bgp_dump->fp); | |
718e3744 | 555 | } |
556 | ||
557 | /* Called from bgp_packet.c when BGP packet is received. */ | |
d62a17ae | 558 | void bgp_dump_packet(struct peer *peer, int type, struct stream *packet) |
718e3744 | 559 | { |
d62a17ae | 560 | /* bgp_dump_all. */ |
561 | bgp_dump_packet_func(&bgp_dump_all, peer, packet); | |
718e3744 | 562 | |
d62a17ae | 563 | /* bgp_dump_updates. */ |
564 | if (type == BGP_MSG_UPDATE) | |
565 | bgp_dump_packet_func(&bgp_dump_updates, peer, packet); | |
718e3744 | 566 | } |
6b0655a2 | 567 | |
d62a17ae | 568 | static unsigned int bgp_dump_parse_time(const char *str) |
718e3744 | 569 | { |
d62a17ae | 570 | int i; |
571 | int len; | |
572 | int seen_h; | |
573 | int seen_m; | |
574 | int time; | |
575 | unsigned int total; | |
576 | ||
577 | time = 0; | |
578 | total = 0; | |
579 | seen_h = 0; | |
580 | seen_m = 0; | |
581 | len = strlen(str); | |
582 | ||
583 | for (i = 0; i < len; i++) { | |
584 | if (isdigit((int)str[i])) { | |
585 | time *= 10; | |
586 | time += str[i] - '0'; | |
587 | } else if (str[i] == 'H' || str[i] == 'h') { | |
588 | if (seen_h) | |
589 | return 0; | |
590 | if (seen_m) | |
591 | return 0; | |
592 | total += time * 60 * 60; | |
593 | time = 0; | |
594 | seen_h = 1; | |
595 | } else if (str[i] == 'M' || str[i] == 'm') { | |
596 | if (seen_m) | |
597 | return 0; | |
598 | total += time * 60; | |
599 | time = 0; | |
600 | seen_m = 1; | |
601 | } else | |
602 | return 0; | |
718e3744 | 603 | } |
d62a17ae | 604 | return total + time; |
718e3744 | 605 | } |
606 | ||
d62a17ae | 607 | static int bgp_dump_set(struct vty *vty, struct bgp_dump *bgp_dump, |
608 | enum bgp_dump_type type, const char *path, | |
609 | const char *interval_str) | |
718e3744 | 610 | { |
d62a17ae | 611 | unsigned int interval; |
612 | ||
613 | /* Don't schedule duplicate dumps if the dump command is given twice */ | |
614 | if (bgp_dump->filename && strcmp(path, bgp_dump->filename) == 0 | |
615 | && type == bgp_dump->type) { | |
616 | if (interval_str) { | |
617 | if (bgp_dump->interval_str | |
618 | && strcmp(bgp_dump->interval_str, interval_str) | |
619 | == 0) | |
620 | return CMD_SUCCESS; | |
621 | } else { | |
622 | if (!bgp_dump->interval_str) | |
623 | return CMD_SUCCESS; | |
624 | } | |
718e3744 | 625 | } |
45ad592e | 626 | |
d62a17ae | 627 | /* Removing previous config */ |
628 | bgp_dump_unset(bgp_dump); | |
629 | ||
630 | if (interval_str) { | |
631 | /* Check interval string. */ | |
632 | interval = bgp_dump_parse_time(interval_str); | |
633 | if (interval == 0) { | |
634 | vty_out(vty, "Malformed interval string\n"); | |
635 | return CMD_WARNING_CONFIG_FAILED; | |
636 | } | |
637 | ||
638 | /* Setting interval string */ | |
639 | bgp_dump->interval_str = | |
640 | XSTRDUP(MTYPE_BGP_DUMP_STR, interval_str); | |
641 | } else { | |
642 | interval = 0; | |
643 | } | |
718e3744 | 644 | |
d62a17ae | 645 | /* Set type. */ |
646 | bgp_dump->type = type; | |
718e3744 | 647 | |
d62a17ae | 648 | /* Set interval */ |
649 | bgp_dump->interval = interval; | |
4db5d90a | 650 | |
d62a17ae | 651 | /* Set file name. */ |
652 | bgp_dump->filename = XSTRDUP(MTYPE_BGP_DUMP_STR, path); | |
4db5d90a | 653 | |
d62a17ae | 654 | /* Create interval thread. */ |
655 | bgp_dump_interval_add(bgp_dump, interval); | |
718e3744 | 656 | |
d62a17ae | 657 | /* This should be called when interval is expired. */ |
658 | bgp_dump_open_file(bgp_dump); | |
718e3744 | 659 | |
d62a17ae | 660 | return CMD_SUCCESS; |
718e3744 | 661 | } |
662 | ||
d62a17ae | 663 | static int bgp_dump_unset(struct bgp_dump *bgp_dump) |
718e3744 | 664 | { |
d62a17ae | 665 | /* Removing file name. */ |
666 | if (bgp_dump->filename) { | |
667 | XFREE(MTYPE_BGP_DUMP_STR, bgp_dump->filename); | |
668 | bgp_dump->filename = NULL; | |
669 | } | |
718e3744 | 670 | |
d62a17ae | 671 | /* Closing file. */ |
672 | if (bgp_dump->fp) { | |
673 | fclose(bgp_dump->fp); | |
674 | bgp_dump->fp = NULL; | |
675 | } | |
718e3744 | 676 | |
d62a17ae | 677 | /* Removing interval thread. */ |
678 | if (bgp_dump->t_interval) { | |
679 | thread_cancel(bgp_dump->t_interval); | |
680 | bgp_dump->t_interval = NULL; | |
681 | } | |
718e3744 | 682 | |
d62a17ae | 683 | bgp_dump->interval = 0; |
718e3744 | 684 | |
d62a17ae | 685 | /* Removing interval string. */ |
686 | if (bgp_dump->interval_str) { | |
687 | XFREE(MTYPE_BGP_DUMP_STR, bgp_dump->interval_str); | |
688 | bgp_dump->interval_str = NULL; | |
689 | } | |
690 | ||
691 | return CMD_SUCCESS; | |
718e3744 | 692 | } |
693 | ||
694 | DEFUN (dump_bgp_all, | |
695 | dump_bgp_all_cmd, | |
6147e2c6 | 696 | "dump bgp <all|all-et|updates|updates-et|routes-mrt> PATH [INTERVAL]", |
718e3744 | 697 | "Dump packet\n" |
698 | "BGP packet dump\n" | |
cbac2b1b EU |
699 | "Dump all BGP packets\nDump all BGP packets (Extended Timestamp Header)\n" |
700 | "Dump BGP updates only\nDump BGP updates only (Extended Timestamp Header)\n" | |
4db5d90a | 701 | "Dump whole BGP routing table\n" |
718e3744 | 702 | "Output filename\n" |
703 | "Interval of output\n") | |
704 | { | |
d62a17ae | 705 | int idx_dump_routes = 2; |
706 | int idx_path = 3; | |
707 | int idx_interval = 4; | |
708 | int bgp_dump_type = 0; | |
709 | const char *interval = NULL; | |
710 | struct bgp_dump *bgp_dump_struct = NULL; | |
711 | const struct bgp_dump_type_map *map = NULL; | |
712 | ||
713 | for (map = bgp_dump_type_map; map->str; map++) | |
714 | if (strmatch(argv[idx_dump_routes]->text, map->str)) | |
715 | bgp_dump_type = map->type; | |
716 | ||
717 | switch (bgp_dump_type) { | |
718 | case BGP_DUMP_ALL: | |
719 | case BGP_DUMP_ALL_ET: | |
720 | bgp_dump_struct = &bgp_dump_all; | |
721 | break; | |
722 | case BGP_DUMP_UPDATES: | |
723 | case BGP_DUMP_UPDATES_ET: | |
724 | bgp_dump_struct = &bgp_dump_updates; | |
725 | break; | |
726 | case BGP_DUMP_ROUTES: | |
727 | default: | |
728 | bgp_dump_struct = &bgp_dump_routes; | |
729 | break; | |
730 | } | |
718e3744 | 731 | |
d62a17ae | 732 | /* When an interval is given */ |
733 | if (argc == idx_interval + 1) | |
734 | interval = argv[idx_interval]->arg; | |
718e3744 | 735 | |
d62a17ae | 736 | return bgp_dump_set(vty, bgp_dump_struct, bgp_dump_type, |
737 | argv[idx_path]->arg, interval); | |
718e3744 | 738 | } |
739 | ||
4db5d90a AF |
740 | DEFUN (no_dump_bgp_all, |
741 | no_dump_bgp_all_cmd, | |
37bc45eb | 742 | "no dump bgp <all|all-et|updates|updates-et|routes-mrt> [PATH [INTERVAL]]", |
718e3744 | 743 | NO_STR |
4db5d90a AF |
744 | "Stop dump packet\n" |
745 | "Stop BGP packet dump\n" | |
ca492402 DS |
746 | "Stop dump process all\n" |
747 | "Stop dump process all-et\n" | |
748 | "Stop dump process updates\n" | |
749 | "Stop dump process updates-et\n" | |
3a2d747c QY |
750 | "Stop dump process route-mrt\n" |
751 | "Output filename\n" | |
752 | "Interval of output\n") | |
718e3744 | 753 | { |
d62a17ae | 754 | int idx_dump_routes = 3; |
755 | int bgp_dump_type = 0; | |
756 | const struct bgp_dump_type_map *map = NULL; | |
757 | struct bgp_dump *bgp_dump_struct = NULL; | |
758 | ||
759 | for (map = bgp_dump_type_map; map->str; map++) | |
760 | if (strmatch(argv[idx_dump_routes]->text, map->str)) | |
761 | bgp_dump_type = map->type; | |
762 | ||
763 | switch (bgp_dump_type) { | |
764 | case BGP_DUMP_ALL: | |
765 | case BGP_DUMP_ALL_ET: | |
766 | bgp_dump_struct = &bgp_dump_all; | |
767 | break; | |
768 | case BGP_DUMP_UPDATES: | |
769 | case BGP_DUMP_UPDATES_ET: | |
770 | bgp_dump_struct = &bgp_dump_updates; | |
771 | break; | |
772 | case BGP_DUMP_ROUTES: | |
773 | default: | |
774 | bgp_dump_struct = &bgp_dump_routes; | |
775 | break; | |
776 | } | |
ca492402 | 777 | |
d62a17ae | 778 | return bgp_dump_unset(bgp_dump_struct); |
718e3744 | 779 | } |
780 | ||
781 | /* BGP node structure. */ | |
d62a17ae | 782 | static struct cmd_node bgp_dump_node = {DUMP_NODE, "", 1}; |
718e3744 | 783 | |
784 | #if 0 | |
785 | char * | |
786 | config_time2str (unsigned int interval) | |
787 | { | |
788 | static char buf[BUFSIZ]; | |
789 | ||
790 | buf[0] = '\0'; | |
791 | ||
792 | if (interval / 3600) | |
793 | { | |
794 | sprintf (buf, "%dh", interval / 3600); | |
795 | interval %= 3600; | |
796 | } | |
797 | if (interval / 60) | |
798 | { | |
799 | sprintf (buf + strlen (buf), "%dm", interval /60); | |
800 | interval %= 60; | |
801 | } | |
802 | if (interval) | |
803 | { | |
804 | sprintf (buf + strlen (buf), "%d", interval); | |
805 | } | |
806 | return buf; | |
807 | } | |
808 | #endif | |
809 | ||
d62a17ae | 810 | static int config_write_bgp_dump(struct vty *vty) |
718e3744 | 811 | { |
d62a17ae | 812 | if (bgp_dump_all.filename) { |
813 | const char *type_str = "all"; | |
814 | if (bgp_dump_all.type == BGP_DUMP_ALL_ET) | |
815 | type_str = "all-et"; | |
816 | ||
817 | if (bgp_dump_all.interval_str) | |
818 | vty_out(vty, "dump bgp %s %s %s\n", type_str, | |
819 | bgp_dump_all.filename, | |
820 | bgp_dump_all.interval_str); | |
821 | else | |
822 | vty_out(vty, "dump bgp %s %s\n", type_str, | |
823 | bgp_dump_all.filename); | |
824 | } | |
825 | if (bgp_dump_updates.filename) { | |
826 | const char *type_str = "updates"; | |
827 | if (bgp_dump_updates.type == BGP_DUMP_UPDATES_ET) | |
828 | type_str = "updates-et"; | |
829 | ||
830 | if (bgp_dump_updates.interval_str) | |
831 | vty_out(vty, "dump bgp %s %s %s\n", type_str, | |
832 | bgp_dump_updates.filename, | |
833 | bgp_dump_updates.interval_str); | |
834 | else | |
835 | vty_out(vty, "dump bgp %s %s\n", type_str, | |
836 | bgp_dump_updates.filename); | |
837 | } | |
838 | if (bgp_dump_routes.filename) { | |
839 | if (bgp_dump_routes.interval_str) | |
840 | vty_out(vty, "dump bgp routes-mrt %s %s\n", | |
841 | bgp_dump_routes.filename, | |
842 | bgp_dump_routes.interval_str); | |
843 | else | |
844 | vty_out(vty, "dump bgp routes-mrt %s\n", | |
845 | bgp_dump_routes.filename); | |
846 | } | |
847 | return 0; | |
718e3744 | 848 | } |
6b0655a2 | 849 | |
718e3744 | 850 | /* Initialize BGP packet dump functionality. */ |
d62a17ae | 851 | void bgp_dump_init(void) |
718e3744 | 852 | { |
d62a17ae | 853 | memset(&bgp_dump_all, 0, sizeof(struct bgp_dump)); |
854 | memset(&bgp_dump_updates, 0, sizeof(struct bgp_dump)); | |
855 | memset(&bgp_dump_routes, 0, sizeof(struct bgp_dump)); | |
718e3744 | 856 | |
d62a17ae | 857 | bgp_dump_obuf = |
858 | stream_new((BGP_MAX_PACKET_SIZE << 1) + BGP_DUMP_MSG_HEADER | |
859 | + BGP_DUMP_HEADER_SIZE); | |
718e3744 | 860 | |
d62a17ae | 861 | install_node(&bgp_dump_node, config_write_bgp_dump); |
718e3744 | 862 | |
d62a17ae | 863 | install_element(CONFIG_NODE, &dump_bgp_all_cmd); |
864 | install_element(CONFIG_NODE, &no_dump_bgp_all_cmd); | |
718e3744 | 865 | } |
228da428 | 866 | |
d62a17ae | 867 | void bgp_dump_finish(void) |
228da428 | 868 | { |
d62a17ae | 869 | bgp_dump_unset(&bgp_dump_all); |
870 | bgp_dump_unset(&bgp_dump_updates); | |
871 | bgp_dump_unset(&bgp_dump_routes); | |
b8438f6d | 872 | |
d62a17ae | 873 | stream_free(bgp_dump_obuf); |
874 | bgp_dump_obuf = NULL; | |
228da428 | 875 | } |