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718e3744 | 1 | /* BGP-4 dump routine |
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 | |
17 | along with GNU Zebra; see the file COPYING. If not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
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" | |
6b0655a2 | 39 | |
718e3744 | 40 | enum bgp_dump_type |
41 | { | |
42 | BGP_DUMP_ALL, | |
4db5d90a | 43 | BGP_DUMP_ALL_ET, |
718e3744 | 44 | BGP_DUMP_UPDATES, |
4db5d90a | 45 | BGP_DUMP_UPDATES_ET, |
718e3744 | 46 | BGP_DUMP_ROUTES |
47 | }; | |
48 | ||
4db5d90a AF |
49 | static const struct bgp_dump_type_map { |
50 | enum bgp_dump_type type; | |
51 | const char *str; | |
52 | } bgp_dump_type_map[] = | |
53 | { | |
54 | {BGP_DUMP_ALL, "all"}, | |
55 | {BGP_DUMP_ALL_ET, "all-et"}, | |
56 | {BGP_DUMP_UPDATES, "updates"}, | |
57 | {BGP_DUMP_UPDATES_ET, "updates-et"}, | |
58 | {BGP_DUMP_ROUTES, "routes-mrt"}, | |
59 | {0, NULL}, | |
60 | }; | |
61 | ||
718e3744 | 62 | enum MRT_MSG_TYPES { |
63 | MSG_NULL, | |
64 | MSG_START, /* sender is starting up */ | |
65 | MSG_DIE, /* receiver should shut down */ | |
66 | MSG_I_AM_DEAD, /* sender is shutting down */ | |
67 | MSG_PEER_DOWN, /* sender's peer is down */ | |
68 | MSG_PROTOCOL_BGP, /* msg is a BGP packet */ | |
69 | MSG_PROTOCOL_RIP, /* msg is a RIP packet */ | |
70 | MSG_PROTOCOL_IDRP, /* msg is an IDRP packet */ | |
71 | MSG_PROTOCOL_RIPNG, /* msg is a RIPNG packet */ | |
72 | MSG_PROTOCOL_BGP4PLUS, /* msg is a BGP4+ packet */ | |
73 | MSG_PROTOCOL_BGP4PLUS_01, /* msg is a BGP4+ (draft 01) packet */ | |
74 | MSG_PROTOCOL_OSPF, /* msg is an OSPF packet */ | |
0b2aa3a0 PJ |
75 | MSG_TABLE_DUMP, /* routing table dump */ |
76 | MSG_TABLE_DUMP_V2 /* routing table dump, version 2 */ | |
718e3744 | 77 | }; |
78 | ||
79 | struct bgp_dump | |
80 | { | |
81 | enum bgp_dump_type type; | |
82 | ||
83 | char *filename; | |
84 | ||
85 | FILE *fp; | |
86 | ||
87 | unsigned int interval; | |
88 | ||
89 | char *interval_str; | |
90 | ||
91 | struct thread *t_interval; | |
92 | }; | |
93 | ||
4db5d90a AF |
94 | static int bgp_dump_unset (struct vty *vty, struct bgp_dump *bgp_dump); |
95 | static int bgp_dump_interval_func (struct thread *); | |
96 | ||
718e3744 | 97 | /* BGP packet dump output buffer. */ |
98 | struct stream *bgp_dump_obuf; | |
99 | ||
100 | /* BGP dump strucuture for 'dump bgp all' */ | |
101 | struct bgp_dump bgp_dump_all; | |
102 | ||
103 | /* BGP dump structure for 'dump bgp updates' */ | |
104 | struct bgp_dump bgp_dump_updates; | |
105 | ||
106 | /* BGP dump structure for 'dump bgp routes' */ | |
107 | struct bgp_dump bgp_dump_routes; | |
108 | ||
94f2b392 | 109 | static FILE * |
718e3744 | 110 | bgp_dump_open_file (struct bgp_dump *bgp_dump) |
111 | { | |
112 | int ret; | |
113 | time_t clock; | |
114 | struct tm *tm; | |
115 | char fullpath[MAXPATHLEN]; | |
116 | char realpath[MAXPATHLEN]; | |
aa593d5e | 117 | mode_t oldumask; |
718e3744 | 118 | |
119 | time (&clock); | |
120 | tm = localtime (&clock); | |
121 | ||
122 | if (bgp_dump->filename[0] != DIRECTORY_SEP) | |
123 | { | |
124 | sprintf (fullpath, "%s/%s", vty_get_cwd (), bgp_dump->filename); | |
125 | ret = strftime (realpath, MAXPATHLEN, fullpath, tm); | |
126 | } | |
127 | else | |
128 | ret = strftime (realpath, MAXPATHLEN, bgp_dump->filename, tm); | |
129 | ||
130 | if (ret == 0) | |
131 | { | |
132 | zlog_warn ("bgp_dump_open_file: strftime error"); | |
133 | return NULL; | |
134 | } | |
135 | ||
136 | if (bgp_dump->fp) | |
137 | fclose (bgp_dump->fp); | |
138 | ||
139 | ||
aa593d5e | 140 | oldumask = umask(0777 & ~LOGFILE_MASK); |
718e3744 | 141 | bgp_dump->fp = fopen (realpath, "w"); |
142 | ||
143 | if (bgp_dump->fp == NULL) | |
aa593d5e | 144 | { |
45ad592e | 145 | zlog_warn ("bgp_dump_open_file: %s: %s", realpath, strerror (errno)); |
aa593d5e | 146 | umask(oldumask); |
147 | return NULL; | |
148 | } | |
149 | umask(oldumask); | |
718e3744 | 150 | |
151 | return bgp_dump->fp; | |
152 | } | |
153 | ||
94f2b392 | 154 | static int |
718e3744 | 155 | bgp_dump_interval_add (struct bgp_dump *bgp_dump, int interval) |
156 | { | |
45ad592e | 157 | int secs_into_day; |
9834cd0f | 158 | time_t t; |
159 | struct tm *tm; | |
718e3744 | 160 | |
45ad592e | 161 | if (interval > 0) |
9834cd0f | 162 | { |
45ad592e | 163 | /* Periodic dump every interval seconds */ |
9834cd0f | 164 | if ((interval < 86400) && ((86400 % interval) == 0)) |
165 | { | |
45ad592e PJ |
166 | /* Dump at predictable times: if a day has a whole number of |
167 | * intervals, dump every interval seconds starting from midnight | |
168 | */ | |
9834cd0f | 169 | (void) time(&t); |
170 | tm = localtime(&t); | |
171 | secs_into_day = tm->tm_sec + 60*tm->tm_min + 60*60*tm->tm_hour; | |
45ad592e | 172 | interval = interval - secs_into_day % interval; /* always > 0 */ |
9834cd0f | 173 | } |
9229d914 | 174 | bgp_dump->t_interval = thread_add_timer (bm->master, bgp_dump_interval_func, |
45ad592e | 175 | bgp_dump, interval); |
9834cd0f | 176 | } |
fba3d22b | 177 | else |
9834cd0f | 178 | { |
45ad592e | 179 | /* One-off dump: execute immediately, don't affect any scheduled dumps */ |
9229d914 | 180 | bgp_dump->t_interval = thread_add_event (bm->master, bgp_dump_interval_func, |
9834cd0f | 181 | bgp_dump, 0); |
182 | } | |
fba3d22b | 183 | |
718e3744 | 184 | return 0; |
185 | } | |
186 | ||
187 | /* Dump common header. */ | |
94f2b392 | 188 | static void |
4db5d90a | 189 | bgp_dump_header (struct stream *obuf, int type, int subtype, int dump_type) |
718e3744 | 190 | { |
4db5d90a AF |
191 | struct timeval clock; |
192 | long msecs; | |
193 | time_t secs; | |
194 | ||
195 | if ((dump_type == BGP_DUMP_ALL_ET || dump_type == BGP_DUMP_UPDATES_ET) | |
196 | && type == MSG_PROTOCOL_BGP4MP) | |
197 | type = MSG_PROTOCOL_BGP4MP_ET; | |
198 | ||
199 | gettimeofday(&clock, NULL); | |
718e3744 | 200 | |
4db5d90a AF |
201 | secs = clock.tv_sec; |
202 | msecs = clock.tv_usec; | |
718e3744 | 203 | |
204 | /* Put dump packet header. */ | |
4db5d90a | 205 | stream_putl (obuf, secs); |
718e3744 | 206 | stream_putw (obuf, type); |
207 | stream_putw (obuf, subtype); | |
718e3744 | 208 | stream_putl (obuf, 0); /* len */ |
4db5d90a AF |
209 | |
210 | /* Adding microseconds for the MRT Extended Header */ | |
211 | if (type == MSG_PROTOCOL_BGP4MP_ET) | |
212 | stream_putl (obuf, msecs); | |
718e3744 | 213 | } |
214 | ||
94f2b392 | 215 | static void |
718e3744 | 216 | bgp_dump_set_size (struct stream *s, int type) |
217 | { | |
4db5d90a AF |
218 | /* |
219 | * The BGP_DUMP_HEADER_SIZE stay at 12 event when ET: | |
220 | * "The Microsecond Timestamp is included in the computation | |
221 | * of the Length field value." (RFC6396 2011) | |
222 | */ | |
9985f83c | 223 | stream_putl_at (s, 8, stream_get_endp (s) - BGP_DUMP_HEADER_SIZE); |
718e3744 | 224 | } |
225 | ||
94f2b392 | 226 | static void |
0b2aa3a0 | 227 | bgp_dump_routes_index_table(struct bgp *bgp) |
718e3744 | 228 | { |
718e3744 | 229 | struct peer *peer; |
0b2aa3a0 PJ |
230 | struct listnode *node; |
231 | uint16_t peerno = 0; | |
232 | struct stream *obuf; | |
718e3744 | 233 | |
718e3744 | 234 | obuf = bgp_dump_obuf; |
235 | stream_reset (obuf); | |
236 | ||
0b2aa3a0 | 237 | /* MRT header */ |
4db5d90a AF |
238 | bgp_dump_header (obuf, MSG_TABLE_DUMP_V2, TABLE_DUMP_V2_PEER_INDEX_TABLE, |
239 | BGP_DUMP_ROUTES); | |
718e3744 | 240 | |
0b2aa3a0 PJ |
241 | /* Collector BGP ID */ |
242 | stream_put_in_addr (obuf, &bgp->router_id); | |
243 | ||
244 | /* View name */ | |
245 | if(bgp->name) | |
718e3744 | 246 | { |
0b2aa3a0 PJ |
247 | stream_putw (obuf, strlen(bgp->name)); |
248 | stream_put(obuf, bgp->name, strlen(bgp->name)); | |
718e3744 | 249 | } |
250 | else | |
251 | { | |
0b2aa3a0 | 252 | stream_putw(obuf, 0); |
718e3744 | 253 | } |
254 | ||
0b2aa3a0 PJ |
255 | /* Peer count */ |
256 | stream_putw (obuf, listcount(bgp->peer)); | |
718e3744 | 257 | |
0b2aa3a0 PJ |
258 | /* Walk down all peers */ |
259 | for(ALL_LIST_ELEMENTS_RO (bgp->peer, node, peer)) | |
718e3744 | 260 | { |
718e3744 | 261 | |
0b2aa3a0 PJ |
262 | /* Peer's type */ |
263 | if (sockunion_family(&peer->su) == AF_INET) | |
264 | { | |
265 | stream_putc (obuf, TABLE_DUMP_V2_PEER_INDEX_TABLE_AS4+TABLE_DUMP_V2_PEER_INDEX_TABLE_IP); | |
266 | } | |
0b2aa3a0 PJ |
267 | else if (sockunion_family(&peer->su) == AF_INET6) |
268 | { | |
269 | stream_putc (obuf, TABLE_DUMP_V2_PEER_INDEX_TABLE_AS4+TABLE_DUMP_V2_PEER_INDEX_TABLE_IP6); | |
270 | } | |
718e3744 | 271 | |
0b2aa3a0 PJ |
272 | /* Peer's BGP ID */ |
273 | stream_put_in_addr (obuf, &peer->remote_id); | |
718e3744 | 274 | |
0b2aa3a0 PJ |
275 | /* Peer's IP address */ |
276 | if (sockunion_family(&peer->su) == AF_INET) | |
277 | { | |
278 | stream_put_in_addr (obuf, &peer->su.sin.sin_addr); | |
279 | } | |
0b2aa3a0 PJ |
280 | else if (sockunion_family(&peer->su) == AF_INET6) |
281 | { | |
282 | stream_write (obuf, (u_char *)&peer->su.sin6.sin6_addr, | |
283 | IPV6_MAX_BYTELEN); | |
284 | } | |
718e3744 | 285 | |
0b2aa3a0 PJ |
286 | /* Peer's AS number. */ |
287 | /* Note that, as this is an AS4 compliant quagga, the RIB is always AS4 */ | |
288 | stream_putl (obuf, peer->as); | |
718e3744 | 289 | |
0b2aa3a0 PJ |
290 | /* Store the peer number for this peer */ |
291 | peer->table_dump_index = peerno; | |
292 | peerno++; | |
718e3744 | 293 | } |
718e3744 | 294 | |
0b2aa3a0 | 295 | bgp_dump_set_size(obuf, MSG_TABLE_DUMP_V2); |
718e3744 | 296 | |
a6694fe8 | 297 | fwrite (STREAM_DATA (obuf), stream_get_endp (obuf), 1, bgp_dump_routes.fp); |
718e3744 | 298 | fflush (bgp_dump_routes.fp); |
299 | } | |
300 | ||
0b2aa3a0 | 301 | |
246556b5 EU |
302 | static struct bgp_info * |
303 | bgp_dump_route_node_record (int afi, struct bgp_node *rn, | |
304 | struct bgp_info *info, unsigned int seq) | |
305 | { | |
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, TABLE_DUMP_V2_RIB_IPV4_UNICAST, | |
316 | BGP_DUMP_ROUTES); | |
317 | else if (afi == AFI_IP6) | |
318 | bgp_dump_header (obuf, MSG_TABLE_DUMP_V2, TABLE_DUMP_V2_RIB_IPV6_UNICAST, | |
319 | BGP_DUMP_ROUTES); | |
320 | ||
321 | /* Sequence number */ | |
322 | stream_putl (obuf, seq); | |
323 | ||
324 | /* Prefix length */ | |
325 | stream_putc (obuf, rn->p.prefixlen); | |
326 | ||
327 | /* Prefix */ | |
328 | if (afi == AFI_IP) | |
329 | { | |
330 | /* We'll dump only the useful bits (those not 0), but have to align on 8 bits */ | |
331 | stream_write (obuf, (u_char *)&rn->p.u.prefix4, (rn->p.prefixlen+7)/8); | |
332 | } | |
333 | else if (afi == AFI_IP6) | |
334 | { | |
335 | /* We'll dump only the useful bits (those not 0), but have to align on 8 bits */ | |
336 | stream_write (obuf, (u_char *)&rn->p.u.prefix6, (rn->p.prefixlen+7)/8); | |
337 | } | |
338 | ||
339 | /* Save where we are now, so we can overwride the entry count later */ | |
340 | sizep = stream_get_endp (obuf); | |
341 | ||
342 | /* Entry count */ | |
343 | uint16_t entry_count = 0; | |
344 | ||
345 | /* Entry count, note that this is overwritten later */ | |
346 | stream_putw (obuf, 0); | |
347 | ||
348 | endp = stream_get_endp (obuf); | |
349 | for (; info; info = info->next) | |
350 | { | |
351 | size_t cur_endp; | |
352 | ||
353 | /* Peer index */ | |
354 | stream_putw (obuf, info->peer->table_dump_index); | |
355 | ||
356 | /* Originated */ | |
357 | #ifdef HAVE_CLOCK_MONOTONIC | |
358 | stream_putl (obuf, time(NULL) - (bgp_clock() - info->uptime)); | |
359 | #else | |
360 | stream_putl (obuf, info->uptime); | |
361 | #endif /* HAVE_CLOCK_MONOTONIC */ | |
362 | ||
363 | /* Dump attribute. */ | |
364 | /* Skip prefix & AFI/SAFI for MP_NLRI */ | |
365 | bgp_dump_routes_attr (obuf, info->attr, &rn->p); | |
366 | ||
367 | cur_endp = stream_get_endp (obuf); | |
368 | if (cur_endp > BGP_MAX_PACKET_SIZE + BGP_DUMP_MSG_HEADER | |
369 | + BGP_DUMP_HEADER_SIZE) | |
370 | { | |
371 | stream_set_endp (obuf, endp); | |
372 | break; | |
373 | } | |
374 | ||
375 | entry_count++; | |
376 | endp = cur_endp; | |
377 | } | |
378 | ||
379 | /* Overwrite the entry count, now that we know the right number */ | |
380 | stream_putw_at (obuf, sizep, entry_count); | |
381 | ||
382 | bgp_dump_set_size (obuf, MSG_TABLE_DUMP_V2); | |
383 | fwrite (STREAM_DATA (obuf), stream_get_endp (obuf), 1, bgp_dump_routes.fp); | |
384 | ||
385 | return info; | |
386 | } | |
387 | ||
388 | ||
718e3744 | 389 | /* Runs under child process. */ |
0b2aa3a0 PJ |
390 | static unsigned int |
391 | bgp_dump_routes_func (int afi, int first_run, unsigned int seq) | |
718e3744 | 392 | { |
718e3744 | 393 | struct bgp_info *info; |
0b2aa3a0 | 394 | struct bgp_node *rn; |
718e3744 | 395 | struct bgp *bgp; |
396 | struct bgp_table *table; | |
718e3744 | 397 | |
398 | bgp = bgp_get_default (); | |
399 | if (!bgp) | |
0b2aa3a0 | 400 | return seq; |
718e3744 | 401 | |
402 | if (bgp_dump_routes.fp == NULL) | |
0b2aa3a0 PJ |
403 | return seq; |
404 | ||
405 | /* Note that bgp_dump_routes_index_table will do ipv4 and ipv6 peers, | |
406 | so this should only be done on the first call to bgp_dump_routes_func. | |
407 | ( this function will be called once for ipv4 and once for ipv6 ) */ | |
246556b5 | 408 | if (first_run) |
0b2aa3a0 PJ |
409 | bgp_dump_routes_index_table(bgp); |
410 | ||
718e3744 | 411 | /* Walk down each BGP route. */ |
412 | table = bgp->rib[afi][SAFI_UNICAST]; | |
413 | ||
414 | for (rn = bgp_table_top (table); rn; rn = bgp_route_next (rn)) | |
0b2aa3a0 | 415 | { |
246556b5 EU |
416 | info = rn->info; |
417 | while (info) | |
418 | { | |
419 | info = bgp_dump_route_node_record (afi, rn, info, seq); | |
420 | seq++; | |
421 | } | |
0b2aa3a0 PJ |
422 | } |
423 | ||
424 | fflush (bgp_dump_routes.fp); | |
425 | ||
426 | return seq; | |
718e3744 | 427 | } |
428 | ||
94f2b392 | 429 | static int |
718e3744 | 430 | bgp_dump_interval_func (struct thread *t) |
431 | { | |
432 | struct bgp_dump *bgp_dump; | |
718e3744 | 433 | bgp_dump = THREAD_ARG (t); |
434 | bgp_dump->t_interval = NULL; | |
435 | ||
9834cd0f | 436 | /* Reschedule dump even if file couldn't be opened this time... */ |
437 | if (bgp_dump_open_file (bgp_dump) != NULL) | |
718e3744 | 438 | { |
9834cd0f | 439 | /* In case of bgp_dump_routes, we need special route dump function. */ |
440 | if (bgp_dump->type == BGP_DUMP_ROUTES) | |
441 | { | |
0b2aa3a0 | 442 | unsigned int seq = bgp_dump_routes_func (AFI_IP, 1, 0); |
0b2aa3a0 | 443 | bgp_dump_routes_func (AFI_IP6, 0, seq); |
9834cd0f | 444 | /* Close the file now. For a RIB dump there's no point in leaving |
445 | * it open until the next scheduled dump starts. */ | |
446 | fclose(bgp_dump->fp); bgp_dump->fp = NULL; | |
447 | } | |
718e3744 | 448 | } |
449 | ||
fba3d22b | 450 | /* if interval is set reschedule */ |
451 | if (bgp_dump->interval > 0) | |
452 | bgp_dump_interval_add (bgp_dump, bgp_dump->interval); | |
453 | ||
718e3744 | 454 | return 0; |
455 | } | |
456 | ||
457 | /* Dump common information. */ | |
94f2b392 | 458 | static void |
0b2aa3a0 | 459 | bgp_dump_common (struct stream *obuf, struct peer *peer, int forceas4) |
718e3744 | 460 | { |
461 | char empty[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; | |
462 | ||
463 | /* Source AS number and Destination AS number. */ | |
0b2aa3a0 PJ |
464 | if (forceas4 || CHECK_FLAG (peer->cap, PEER_CAP_AS4_RCV) ) |
465 | { | |
466 | stream_putl (obuf, peer->as); | |
467 | stream_putl (obuf, peer->local_as); | |
468 | } | |
469 | else | |
470 | { | |
471 | stream_putw (obuf, peer->as); | |
472 | stream_putw (obuf, peer->local_as); | |
473 | } | |
718e3744 | 474 | |
a384592f | 475 | if (peer->su.sa.sa_family == AF_INET) |
718e3744 | 476 | { |
477 | stream_putw (obuf, peer->ifindex); | |
478 | stream_putw (obuf, AFI_IP); | |
479 | ||
480 | stream_put (obuf, &peer->su.sin.sin_addr, IPV4_MAX_BYTELEN); | |
481 | ||
482 | if (peer->su_local) | |
483 | stream_put (obuf, &peer->su_local->sin.sin_addr, IPV4_MAX_BYTELEN); | |
484 | else | |
485 | stream_put (obuf, empty, IPV4_MAX_BYTELEN); | |
486 | } | |
a384592f | 487 | else if (peer->su.sa.sa_family == AF_INET6) |
718e3744 | 488 | { |
489 | /* Interface Index and Address family. */ | |
490 | stream_putw (obuf, peer->ifindex); | |
491 | stream_putw (obuf, AFI_IP6); | |
492 | ||
493 | /* Source IP Address and Destination IP Address. */ | |
494 | stream_put (obuf, &peer->su.sin6.sin6_addr, IPV6_MAX_BYTELEN); | |
495 | ||
496 | if (peer->su_local) | |
497 | stream_put (obuf, &peer->su_local->sin6.sin6_addr, IPV6_MAX_BYTELEN); | |
498 | else | |
499 | stream_put (obuf, empty, IPV6_MAX_BYTELEN); | |
500 | } | |
718e3744 | 501 | } |
502 | ||
503 | /* Dump BGP status change. */ | |
504 | void | |
505 | bgp_dump_state (struct peer *peer, int status_old, int status_new) | |
506 | { | |
507 | struct stream *obuf; | |
508 | ||
509 | /* If dump file pointer is disabled return immediately. */ | |
510 | if (bgp_dump_all.fp == NULL) | |
511 | return; | |
512 | ||
513 | /* Make dump stream. */ | |
514 | obuf = bgp_dump_obuf; | |
515 | stream_reset (obuf); | |
516 | ||
4db5d90a AF |
517 | bgp_dump_header (obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_STATE_CHANGE_AS4, |
518 | bgp_dump_all.type); | |
0b2aa3a0 | 519 | bgp_dump_common (obuf, peer, 1);/* force this in as4speak*/ |
718e3744 | 520 | |
521 | stream_putw (obuf, status_old); | |
522 | stream_putw (obuf, status_new); | |
523 | ||
524 | /* Set length. */ | |
525 | bgp_dump_set_size (obuf, MSG_PROTOCOL_BGP4MP); | |
526 | ||
527 | /* Write to the stream. */ | |
a6694fe8 | 528 | fwrite (STREAM_DATA (obuf), stream_get_endp (obuf), 1, bgp_dump_all.fp); |
718e3744 | 529 | fflush (bgp_dump_all.fp); |
530 | } | |
531 | ||
94f2b392 | 532 | static void |
718e3744 | 533 | bgp_dump_packet_func (struct bgp_dump *bgp_dump, struct peer *peer, |
534 | struct stream *packet) | |
535 | { | |
536 | struct stream *obuf; | |
537 | ||
538 | /* If dump file pointer is disabled return immediately. */ | |
539 | if (bgp_dump->fp == NULL) | |
540 | return; | |
541 | ||
542 | /* Make dump stream. */ | |
543 | obuf = bgp_dump_obuf; | |
544 | stream_reset (obuf); | |
545 | ||
546 | /* Dump header and common part. */ | |
0b2aa3a0 PJ |
547 | if (CHECK_FLAG (peer->cap, PEER_CAP_AS4_RCV) ) |
548 | { | |
4db5d90a AF |
549 | bgp_dump_header (obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_MESSAGE_AS4, |
550 | bgp_dump->type); | |
0b2aa3a0 PJ |
551 | } |
552 | else | |
553 | { | |
4db5d90a AF |
554 | bgp_dump_header (obuf, MSG_PROTOCOL_BGP4MP, BGP4MP_MESSAGE, |
555 | bgp_dump->type); | |
0b2aa3a0 PJ |
556 | } |
557 | bgp_dump_common (obuf, peer, 0); | |
718e3744 | 558 | |
559 | /* Packet contents. */ | |
560 | stream_put (obuf, STREAM_DATA (packet), stream_get_endp (packet)); | |
561 | ||
562 | /* Set length. */ | |
563 | bgp_dump_set_size (obuf, MSG_PROTOCOL_BGP4MP); | |
564 | ||
565 | /* Write to the stream. */ | |
a6694fe8 | 566 | fwrite (STREAM_DATA (obuf), stream_get_endp (obuf), 1, bgp_dump->fp); |
718e3744 | 567 | fflush (bgp_dump->fp); |
568 | } | |
569 | ||
570 | /* Called from bgp_packet.c when BGP packet is received. */ | |
571 | void | |
572 | bgp_dump_packet (struct peer *peer, int type, struct stream *packet) | |
573 | { | |
574 | /* bgp_dump_all. */ | |
575 | bgp_dump_packet_func (&bgp_dump_all, peer, packet); | |
576 | ||
577 | /* bgp_dump_updates. */ | |
578 | if (type == BGP_MSG_UPDATE) | |
579 | bgp_dump_packet_func (&bgp_dump_updates, peer, packet); | |
580 | } | |
6b0655a2 | 581 | |
94f2b392 | 582 | static unsigned int |
fd79ac91 | 583 | bgp_dump_parse_time (const char *str) |
718e3744 | 584 | { |
585 | int i; | |
586 | int len; | |
587 | int seen_h; | |
588 | int seen_m; | |
589 | int time; | |
590 | unsigned int total; | |
591 | ||
592 | time = 0; | |
593 | total = 0; | |
594 | seen_h = 0; | |
595 | seen_m = 0; | |
596 | len = strlen (str); | |
597 | ||
598 | for (i = 0; i < len; i++) | |
599 | { | |
600 | if (isdigit ((int) str[i])) | |
601 | { | |
602 | time *= 10; | |
603 | time += str[i] - '0'; | |
604 | } | |
605 | else if (str[i] == 'H' || str[i] == 'h') | |
606 | { | |
607 | if (seen_h) | |
608 | return 0; | |
609 | if (seen_m) | |
610 | return 0; | |
611 | total += time * 60 *60; | |
612 | time = 0; | |
613 | seen_h = 1; | |
614 | } | |
615 | else if (str[i] == 'M' || str[i] == 'm') | |
616 | { | |
617 | if (seen_m) | |
618 | return 0; | |
619 | total += time * 60; | |
620 | time = 0; | |
621 | seen_h = 1; | |
622 | } | |
623 | else | |
624 | return 0; | |
625 | } | |
626 | return total + time; | |
627 | } | |
628 | ||
94f2b392 | 629 | static int |
45ad592e PJ |
630 | bgp_dump_set (struct vty *vty, struct bgp_dump *bgp_dump, |
631 | enum bgp_dump_type type, const char *path, | |
632 | const char *interval_str) | |
718e3744 | 633 | { |
fba3d22b | 634 | unsigned int interval; |
635 | ||
4db5d90a AF |
636 | /* Don't schedule duplicate dumps if the dump command is given twice */ |
637 | if (bgp_dump->filename && strcmp(path, bgp_dump->filename) == 0 | |
638 | && type == bgp_dump->type) | |
639 | { | |
640 | if (interval_str) | |
641 | { | |
642 | if (bgp_dump->interval_str && | |
643 | strcmp(bgp_dump->interval_str, interval_str) == 0) | |
644 | return CMD_SUCCESS; | |
645 | } | |
646 | else | |
647 | { | |
648 | if (!bgp_dump->interval_str) | |
649 | return CMD_SUCCESS; | |
650 | } | |
651 | } | |
652 | ||
653 | /* Removing previous config */ | |
654 | bgp_dump_unset(vty, bgp_dump); | |
655 | ||
718e3744 | 656 | if (interval_str) |
657 | { | |
718e3744 | 658 | /* Check interval string. */ |
659 | interval = bgp_dump_parse_time (interval_str); | |
660 | if (interval == 0) | |
661 | { | |
662 | vty_out (vty, "Malformed interval string%s", VTY_NEWLINE); | |
663 | return CMD_WARNING; | |
664 | } | |
45ad592e | 665 | |
4db5d90a | 666 | /* Setting interval string */ |
6e919709 | 667 | bgp_dump->interval_str = XSTRDUP(MTYPE_BGP_DUMP_STR, interval_str); |
718e3744 | 668 | } |
fba3d22b | 669 | else |
670 | { | |
671 | interval = 0; | |
672 | } | |
718e3744 | 673 | |
674 | /* Set type. */ | |
675 | bgp_dump->type = type; | |
676 | ||
4db5d90a AF |
677 | /* Set interval */ |
678 | bgp_dump->interval = interval; | |
679 | ||
718e3744 | 680 | /* Set file name. */ |
4db5d90a AF |
681 | bgp_dump->filename = XSTRDUP (MTYPE_BGP_DUMP_STR, path); |
682 | ||
683 | /* Create interval thread. */ | |
684 | bgp_dump_interval_add (bgp_dump, interval); | |
718e3744 | 685 | |
686 | /* This should be called when interval is expired. */ | |
687 | bgp_dump_open_file (bgp_dump); | |
688 | ||
689 | return CMD_SUCCESS; | |
690 | } | |
691 | ||
94f2b392 | 692 | static int |
718e3744 | 693 | bgp_dump_unset (struct vty *vty, struct bgp_dump *bgp_dump) |
694 | { | |
4db5d90a | 695 | /* Removing file name. */ |
718e3744 | 696 | if (bgp_dump->filename) |
697 | { | |
6e919709 | 698 | XFREE(MTYPE_BGP_DUMP_STR, bgp_dump->filename); |
718e3744 | 699 | bgp_dump->filename = NULL; |
700 | } | |
701 | ||
4db5d90a | 702 | /* Closing file. */ |
718e3744 | 703 | if (bgp_dump->fp) |
704 | { | |
705 | fclose (bgp_dump->fp); | |
706 | bgp_dump->fp = NULL; | |
707 | } | |
708 | ||
4db5d90a | 709 | /* Removing interval thread. */ |
718e3744 | 710 | if (bgp_dump->t_interval) |
711 | { | |
712 | thread_cancel (bgp_dump->t_interval); | |
713 | bgp_dump->t_interval = NULL; | |
714 | } | |
715 | ||
716 | bgp_dump->interval = 0; | |
717 | ||
4db5d90a | 718 | /* Removing interval string. */ |
718e3744 | 719 | if (bgp_dump->interval_str) |
720 | { | |
6e919709 | 721 | XFREE(MTYPE_BGP_DUMP_STR, bgp_dump->interval_str); |
718e3744 | 722 | bgp_dump->interval_str = NULL; |
723 | } | |
724 | ||
718e3744 | 725 | return CMD_SUCCESS; |
726 | } | |
727 | ||
728 | DEFUN (dump_bgp_all, | |
729 | dump_bgp_all_cmd, | |
6147e2c6 | 730 | "dump bgp <all|all-et|updates|updates-et|routes-mrt> PATH [INTERVAL]", |
718e3744 | 731 | "Dump packet\n" |
732 | "BGP packet dump\n" | |
cbac2b1b EU |
733 | "Dump all BGP packets\nDump all BGP packets (Extended Timestamp Header)\n" |
734 | "Dump BGP updates only\nDump BGP updates only (Extended Timestamp Header)\n" | |
4db5d90a | 735 | "Dump whole BGP routing table\n" |
718e3744 | 736 | "Output filename\n" |
737 | "Interval of output\n") | |
738 | { | |
4db5d90a AF |
739 | int bgp_dump_type = 0; |
740 | const char *interval = NULL; | |
741 | struct bgp_dump *bgp_dump_struct = NULL; | |
742 | const struct bgp_dump_type_map *map = NULL; | |
718e3744 | 743 | |
4db5d90a | 744 | for (map = bgp_dump_type_map; map->str; map++) |
4dcadbef | 745 | if (strcmp(argv[2]->arg, map->str) == 0) |
4db5d90a | 746 | bgp_dump_type = map->type; |
718e3744 | 747 | |
4db5d90a AF |
748 | switch (bgp_dump_type) |
749 | { | |
750 | case BGP_DUMP_ALL: | |
751 | case BGP_DUMP_ALL_ET: | |
752 | bgp_dump_struct = &bgp_dump_all; | |
753 | break; | |
754 | case BGP_DUMP_UPDATES: | |
755 | case BGP_DUMP_UPDATES_ET: | |
756 | bgp_dump_struct = &bgp_dump_updates; | |
757 | break; | |
758 | case BGP_DUMP_ROUTES: | |
759 | default: | |
760 | bgp_dump_struct = &bgp_dump_routes; | |
761 | break; | |
762 | } | |
718e3744 | 763 | |
4db5d90a AF |
764 | /* When an interval is given */ |
765 | if (argc == 3) | |
4dcadbef | 766 | interval = argv[4]->arg; |
718e3744 | 767 | |
4db5d90a | 768 | return bgp_dump_set (vty, bgp_dump_struct, bgp_dump_type, |
4dcadbef | 769 | argv[3]->arg, interval); |
718e3744 | 770 | } |
771 | ||
4db5d90a AF |
772 | DEFUN (no_dump_bgp_all, |
773 | no_dump_bgp_all_cmd, | |
6147e2c6 | 774 | "no dump bgp <all|all-et|updates|updates-et|routes-mrt> [PATH] [INTERVAL]", |
718e3744 | 775 | NO_STR |
4db5d90a AF |
776 | "Stop dump packet\n" |
777 | "Stop BGP packet dump\n" | |
ca492402 DS |
778 | "Stop dump process all\n" |
779 | "Stop dump process all-et\n" | |
780 | "Stop dump process updates\n" | |
781 | "Stop dump process updates-et\n" | |
4db5d90a | 782 | "Stop dump process route-mrt\n") |
718e3744 | 783 | { |
ca492402 DS |
784 | int bgp_dump_type = 0; |
785 | const struct bgp_dump_type_map *map = NULL; | |
786 | struct bgp_dump *bgp_dump_struct = NULL; | |
787 | ||
788 | for (map = bgp_dump_type_map; map->str; map++) | |
4dcadbef | 789 | if (strcmp(argv[3]->arg, map->str) == 0) |
ca492402 DS |
790 | bgp_dump_type = map->type; |
791 | ||
792 | switch (bgp_dump_type) | |
793 | { | |
794 | case BGP_DUMP_ALL: | |
795 | case BGP_DUMP_ALL_ET: | |
796 | bgp_dump_struct = &bgp_dump_all; | |
797 | break; | |
798 | case BGP_DUMP_UPDATES: | |
799 | case BGP_DUMP_UPDATES_ET: | |
800 | bgp_dump_struct = &bgp_dump_updates; | |
801 | break; | |
802 | case BGP_DUMP_ROUTES: | |
803 | default: | |
804 | bgp_dump_struct = &bgp_dump_routes; | |
805 | break; | |
806 | } | |
807 | ||
808 | return bgp_dump_unset (vty, bgp_dump_struct); | |
718e3744 | 809 | } |
810 | ||
811 | /* BGP node structure. */ | |
7fc626de | 812 | static struct cmd_node bgp_dump_node = |
718e3744 | 813 | { |
814 | DUMP_NODE, | |
815 | "", | |
501ba490 | 816 | 1 |
718e3744 | 817 | }; |
818 | ||
819 | #if 0 | |
820 | char * | |
821 | config_time2str (unsigned int interval) | |
822 | { | |
823 | static char buf[BUFSIZ]; | |
824 | ||
825 | buf[0] = '\0'; | |
826 | ||
827 | if (interval / 3600) | |
828 | { | |
829 | sprintf (buf, "%dh", interval / 3600); | |
830 | interval %= 3600; | |
831 | } | |
832 | if (interval / 60) | |
833 | { | |
834 | sprintf (buf + strlen (buf), "%dm", interval /60); | |
835 | interval %= 60; | |
836 | } | |
837 | if (interval) | |
838 | { | |
839 | sprintf (buf + strlen (buf), "%d", interval); | |
840 | } | |
841 | return buf; | |
842 | } | |
843 | #endif | |
844 | ||
94f2b392 | 845 | static int |
718e3744 | 846 | config_write_bgp_dump (struct vty *vty) |
847 | { | |
848 | if (bgp_dump_all.filename) | |
849 | { | |
4db5d90a AF |
850 | const char *type_str = "all"; |
851 | if (bgp_dump_all.type == BGP_DUMP_ALL_ET) | |
852 | type_str = "all-et"; | |
853 | ||
718e3744 | 854 | if (bgp_dump_all.interval_str) |
4db5d90a | 855 | vty_out (vty, "dump bgp %s %s %s%s", type_str, |
718e3744 | 856 | bgp_dump_all.filename, bgp_dump_all.interval_str, |
857 | VTY_NEWLINE); | |
858 | else | |
4db5d90a | 859 | vty_out (vty, "dump bgp %s %s%s", type_str, |
718e3744 | 860 | bgp_dump_all.filename, VTY_NEWLINE); |
861 | } | |
862 | if (bgp_dump_updates.filename) | |
863 | { | |
4db5d90a AF |
864 | const char *type_str = "updates"; |
865 | if (bgp_dump_updates.type == BGP_DUMP_UPDATES_ET) | |
866 | type_str = "updates-et"; | |
867 | ||
718e3744 | 868 | if (bgp_dump_updates.interval_str) |
4db5d90a | 869 | vty_out (vty, "dump bgp %s %s %s%s", type_str, |
718e3744 | 870 | bgp_dump_updates.filename, bgp_dump_updates.interval_str, |
871 | VTY_NEWLINE); | |
872 | else | |
873 | vty_out (vty, "dump bgp updates %s%s", | |
874 | bgp_dump_updates.filename, VTY_NEWLINE); | |
875 | } | |
876 | if (bgp_dump_routes.filename) | |
877 | { | |
878 | if (bgp_dump_routes.interval_str) | |
879 | vty_out (vty, "dump bgp routes-mrt %s %s%s", | |
880 | bgp_dump_routes.filename, bgp_dump_routes.interval_str, | |
881 | VTY_NEWLINE); | |
718e3744 | 882 | } |
883 | return 0; | |
884 | } | |
6b0655a2 | 885 | |
718e3744 | 886 | /* Initialize BGP packet dump functionality. */ |
887 | void | |
94f2b392 | 888 | bgp_dump_init (void) |
718e3744 | 889 | { |
890 | memset (&bgp_dump_all, 0, sizeof (struct bgp_dump)); | |
891 | memset (&bgp_dump_updates, 0, sizeof (struct bgp_dump)); | |
892 | memset (&bgp_dump_routes, 0, sizeof (struct bgp_dump)); | |
893 | ||
246556b5 EU |
894 | bgp_dump_obuf = stream_new ((BGP_MAX_PACKET_SIZE << 1) |
895 | + BGP_DUMP_MSG_HEADER + BGP_DUMP_HEADER_SIZE); | |
718e3744 | 896 | |
897 | install_node (&bgp_dump_node, config_write_bgp_dump); | |
898 | ||
899 | install_element (CONFIG_NODE, &dump_bgp_all_cmd); | |
718e3744 | 900 | install_element (CONFIG_NODE, &no_dump_bgp_all_cmd); |
718e3744 | 901 | } |
228da428 CC |
902 | |
903 | void | |
904 | bgp_dump_finish (void) | |
905 | { | |
906 | stream_free (bgp_dump_obuf); | |
907 | bgp_dump_obuf = NULL; | |
908 | } |