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acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
6c29258c YO |
2 | /* BMP support. |
3 | * Copyright (C) 2018 Yasuhiro Ohara | |
ed18356f | 4 | * Copyright (C) 2019 David Lamparter for NetDEF, Inc. |
6c29258c YO |
5 | */ |
6 | ||
7 | #include <zebra.h> | |
8 | ||
9 | #include "log.h" | |
10 | #include "stream.h" | |
11 | #include "sockunion.h" | |
12 | #include "command.h" | |
13 | #include "prefix.h" | |
24a58196 | 14 | #include "frrevent.h" |
6c29258c YO |
15 | #include "linklist.h" |
16 | #include "queue.h" | |
ed18356f | 17 | #include "pullwr.h" |
6c29258c YO |
18 | #include "memory.h" |
19 | #include "network.h" | |
20 | #include "filter.h" | |
21 | #include "lib_errors.h" | |
22 | #include "stream.h" | |
0ba4eeec | 23 | #include "libfrr.h" |
09781197 | 24 | #include "lib/version.h" |
ed18356f DL |
25 | #include "jhash.h" |
26 | #include "termtable.h" | |
6c29258c YO |
27 | |
28 | #include "bgpd/bgp_table.h" | |
29 | #include "bgpd/bgpd.h" | |
30 | #include "bgpd/bgp_route.h" | |
31 | #include "bgpd/bgp_attr.h" | |
32 | #include "bgpd/bgp_dump.h" | |
33 | #include "bgpd/bgp_errors.h" | |
d35a6c28 | 34 | #include "bgpd/bgp_packet.h" |
6c29258c | 35 | #include "bgpd/bgp_bmp.h" |
ed18356f DL |
36 | #include "bgpd/bgp_fsm.h" |
37 | #include "bgpd/bgp_updgrp.h" | |
38 | #include "bgpd/bgp_vty.h" | |
e0302d7e | 39 | #include "bgpd/bgp_trace.h" |
09f267ec | 40 | #include "bgpd/bgp_network.h" |
ed18356f DL |
41 | |
42 | static void bmp_close(struct bmp *bmp); | |
43 | static struct bmp_bgp *bmp_bgp_find(struct bgp *bgp); | |
44 | static void bmp_targets_put(struct bmp_targets *bt); | |
45 | static struct bmp_bgp_peer *bmp_bgp_peer_find(uint64_t peerid); | |
46 | static struct bmp_bgp_peer *bmp_bgp_peer_get(struct peer *peer); | |
47 | static void bmp_active_disconnected(struct bmp_active *ba); | |
48 | static void bmp_active_put(struct bmp_active *ba); | |
49 | ||
bf8d3d6a | 50 | DEFINE_MGROUP(BMP, "BMP (BGP Monitoring Protocol)"); |
ed18356f | 51 | |
bf8d3d6a DL |
52 | DEFINE_MTYPE_STATIC(BMP, BMP_CONN, "BMP connection state"); |
53 | DEFINE_MTYPE_STATIC(BMP, BMP_TARGETS, "BMP targets"); | |
54 | DEFINE_MTYPE_STATIC(BMP, BMP_TARGETSNAME, "BMP targets name"); | |
55 | DEFINE_MTYPE_STATIC(BMP, BMP_LISTENER, "BMP listener"); | |
56 | DEFINE_MTYPE_STATIC(BMP, BMP_ACTIVE, "BMP active connection config"); | |
57 | DEFINE_MTYPE_STATIC(BMP, BMP_ACLNAME, "BMP access-list name"); | |
58 | DEFINE_MTYPE_STATIC(BMP, BMP_QUEUE, "BMP update queue item"); | |
59 | DEFINE_MTYPE_STATIC(BMP, BMP, "BMP instance state"); | |
60 | DEFINE_MTYPE_STATIC(BMP, BMP_MIRRORQ, "BMP route mirroring buffer"); | |
61 | DEFINE_MTYPE_STATIC(BMP, BMP_PEER, "BMP per BGP peer data"); | |
62 | DEFINE_MTYPE_STATIC(BMP, BMP_OPEN, "BMP stored BGP OPEN message"); | |
ed18356f | 63 | |
96244aca | 64 | DEFINE_QOBJ_TYPE(bmp_targets); |
ed18356f DL |
65 | |
66 | static int bmp_bgp_cmp(const struct bmp_bgp *a, const struct bmp_bgp *b) | |
67 | { | |
68 | if (a->bgp < b->bgp) | |
69 | return -1; | |
70 | if (a->bgp > b->bgp) | |
71 | return 1; | |
72 | return 0; | |
73 | } | |
74 | ||
75 | static uint32_t bmp_bgp_hash(const struct bmp_bgp *e) | |
76 | { | |
77 | return jhash(&e->bgp, sizeof(e->bgp), 0x55aa5a5a); | |
78 | } | |
6c29258c | 79 | |
960b9a53 | 80 | DECLARE_HASH(bmp_bgph, struct bmp_bgp, bbi, bmp_bgp_cmp, bmp_bgp_hash); |
ed18356f DL |
81 | |
82 | struct bmp_bgph_head bmp_bgph; | |
83 | ||
84 | static int bmp_bgp_peer_cmp(const struct bmp_bgp_peer *a, | |
85 | const struct bmp_bgp_peer *b) | |
86 | { | |
87 | if (a->peerid < b->peerid) | |
88 | return -1; | |
89 | if (a->peerid > b->peerid) | |
90 | return 1; | |
91 | return 0; | |
92 | } | |
93 | ||
94 | static uint32_t bmp_bgp_peer_hash(const struct bmp_bgp_peer *e) | |
95 | { | |
96 | return e->peerid; | |
97 | } | |
6c29258c | 98 | |
ed18356f | 99 | DECLARE_HASH(bmp_peerh, struct bmp_bgp_peer, bpi, |
960b9a53 | 100 | bmp_bgp_peer_cmp, bmp_bgp_peer_hash); |
6c29258c | 101 | |
ed18356f | 102 | struct bmp_peerh_head bmp_peerh; |
6c29258c | 103 | |
960b9a53 | 104 | DECLARE_LIST(bmp_mirrorq, struct bmp_mirrorq, bmi); |
6c29258c | 105 | |
ed18356f | 106 | /* listener management */ |
6c29258c | 107 | |
ed18356f DL |
108 | static int bmp_listener_cmp(const struct bmp_listener *a, |
109 | const struct bmp_listener *b) | |
6c29258c | 110 | { |
ed18356f | 111 | int c; |
6c29258c | 112 | |
ed18356f DL |
113 | c = sockunion_cmp(&a->addr, &b->addr); |
114 | if (c) | |
115 | return c; | |
116 | if (a->port < b->port) | |
117 | return -1; | |
118 | if (a->port > b->port) | |
119 | return 1; | |
120 | return 0; | |
121 | } | |
6c29258c | 122 | |
960b9a53 DL |
123 | DECLARE_SORTLIST_UNIQ(bmp_listeners, struct bmp_listener, bli, |
124 | bmp_listener_cmp); | |
ed18356f | 125 | |
5cb3a153 DA |
126 | static void bmp_listener_put(struct bmp_listener *bl) |
127 | { | |
128 | bmp_listeners_del(&bl->targets->listeners, bl); | |
129 | XFREE(MTYPE_BMP_LISTENER, bl); | |
130 | } | |
131 | ||
ed18356f DL |
132 | static int bmp_targets_cmp(const struct bmp_targets *a, |
133 | const struct bmp_targets *b) | |
134 | { | |
135 | return strcmp(a->name, b->name); | |
6c29258c YO |
136 | } |
137 | ||
960b9a53 | 138 | DECLARE_SORTLIST_UNIQ(bmp_targets, struct bmp_targets, bti, bmp_targets_cmp); |
ed18356f | 139 | |
960b9a53 | 140 | DECLARE_LIST(bmp_session, struct bmp, bsi); |
ed18356f | 141 | |
960b9a53 | 142 | DECLARE_DLIST(bmp_qlist, struct bmp_queue_entry, bli); |
ed18356f DL |
143 | |
144 | static int bmp_qhash_cmp(const struct bmp_queue_entry *a, | |
145 | const struct bmp_queue_entry *b) | |
6c29258c | 146 | { |
ed18356f | 147 | int ret; |
87102aa0 | 148 | if (a->afi == AFI_L2VPN && a->safi == SAFI_EVPN && b->afi == AFI_L2VPN |
149 | && b->safi == SAFI_EVPN) { | |
150 | ret = prefix_cmp(&a->rd, &b->rd); | |
151 | if (ret) | |
152 | return ret; | |
153 | } else if (a->afi == AFI_L2VPN && a->safi == SAFI_EVPN) | |
154 | return 1; | |
155 | else if (b->afi == AFI_L2VPN && b->safi == SAFI_EVPN) | |
156 | return -1; | |
157 | ||
5dde2965 FD |
158 | if (a->afi == b->afi && a->safi == SAFI_MPLS_VPN && |
159 | b->safi == SAFI_MPLS_VPN) { | |
160 | ret = prefix_cmp(&a->rd, &b->rd); | |
161 | if (ret) | |
162 | return ret; | |
163 | } else if (a->safi == SAFI_MPLS_VPN) | |
164 | return 1; | |
165 | else if (b->safi == SAFI_MPLS_VPN) | |
166 | return -1; | |
167 | ||
ed18356f DL |
168 | ret = prefix_cmp(&a->p, &b->p); |
169 | if (ret) | |
170 | return ret; | |
171 | ret = memcmp(&a->peerid, &b->peerid, | |
172 | offsetof(struct bmp_queue_entry, refcount) - | |
173 | offsetof(struct bmp_queue_entry, peerid)); | |
174 | return ret; | |
6c29258c YO |
175 | } |
176 | ||
ed18356f | 177 | static uint32_t bmp_qhash_hkey(const struct bmp_queue_entry *e) |
6c29258c | 178 | { |
ed18356f DL |
179 | uint32_t key; |
180 | ||
181 | key = prefix_hash_key((void *)&e->p); | |
182 | key = jhash(&e->peerid, | |
87102aa0 | 183 | offsetof(struct bmp_queue_entry, refcount) |
184 | - offsetof(struct bmp_queue_entry, peerid), | |
185 | key); | |
5dde2965 FD |
186 | if ((e->afi == AFI_L2VPN && e->safi == SAFI_EVPN) || |
187 | (e->safi == SAFI_MPLS_VPN)) | |
87102aa0 | 188 | key = jhash(&e->rd, |
189 | offsetof(struct bmp_queue_entry, rd) | |
190 | - offsetof(struct bmp_queue_entry, refcount) | |
191 | + PSIZE(e->rd.prefixlen), | |
192 | key); | |
193 | ||
ed18356f DL |
194 | return key; |
195 | } | |
6c29258c | 196 | |
ed18356f | 197 | DECLARE_HASH(bmp_qhash, struct bmp_queue_entry, bhi, |
960b9a53 | 198 | bmp_qhash_cmp, bmp_qhash_hkey); |
6c29258c | 199 | |
ed18356f DL |
200 | static int bmp_active_cmp(const struct bmp_active *a, |
201 | const struct bmp_active *b) | |
202 | { | |
203 | int c; | |
204 | ||
205 | c = strcmp(a->hostname, b->hostname); | |
206 | if (c) | |
207 | return c; | |
208 | if (a->port < b->port) | |
209 | return -1; | |
210 | if (a->port > b->port) | |
211 | return 1; | |
6c29258c YO |
212 | return 0; |
213 | } | |
214 | ||
960b9a53 | 215 | DECLARE_SORTLIST_UNIQ(bmp_actives, struct bmp_active, bai, bmp_active_cmp); |
ed18356f DL |
216 | |
217 | static struct bmp *bmp_new(struct bmp_targets *bt, int bmp_sock) | |
6c29258c | 218 | { |
ed18356f DL |
219 | struct bmp *new = XCALLOC(MTYPE_BMP_CONN, sizeof(struct bmp)); |
220 | afi_t afi; | |
221 | safi_t safi; | |
222 | ||
223 | monotime(&new->t_up); | |
224 | new->targets = bt; | |
225 | new->socket = bmp_sock; | |
226 | new->syncafi = AFI_MAX; | |
227 | ||
228 | FOREACH_AFI_SAFI (afi, safi) { | |
229 | new->afistate[afi][safi] = bt->afimon[afi][safi] | |
230 | ? BMP_AFI_NEEDSYNC : BMP_AFI_INACTIVE; | |
231 | } | |
232 | ||
233 | bmp_session_add_tail(&bt->sessions, new); | |
234 | return new; | |
6c29258c | 235 | } |
6c29258c | 236 | |
ed18356f | 237 | static void bmp_free(struct bmp *bmp) |
6c29258c | 238 | { |
ed18356f DL |
239 | bmp_session_del(&bmp->targets->sessions, bmp); |
240 | XFREE(MTYPE_BMP_CONN, bmp); | |
6c29258c YO |
241 | } |
242 | ||
243 | static void bmp_common_hdr(struct stream *s, uint8_t ver, uint8_t type) | |
244 | { | |
245 | stream_putc(s, ver); | |
246 | stream_putl(s, 0); //dummy message length. will be set later. | |
247 | stream_putc(s, type); | |
248 | } | |
249 | ||
ed18356f DL |
250 | static void bmp_per_peer_hdr(struct stream *s, struct peer *peer, |
251 | uint8_t flags, const struct timeval *tv) | |
6c29258c | 252 | { |
6c29258c YO |
253 | char peer_distinguisher[8]; |
254 | ||
255 | #define BMP_PEER_TYPE_GLOBAL_INSTANCE 0 | |
256 | #define BMP_PEER_TYPE_RD_INSTANCE 1 | |
257 | #define BMP_PEER_TYPE_LOCAL_INSTANCE 2 | |
258 | ||
259 | #define BMP_PEER_FLAG_V (1 << 7) | |
260 | #define BMP_PEER_FLAG_L (1 << 6) | |
261 | #define BMP_PEER_FLAG_A (1 << 5) | |
262 | ||
263 | /* Peer Type */ | |
264 | stream_putc(s, BMP_PEER_TYPE_GLOBAL_INSTANCE); | |
265 | ||
266 | /* Peer Flags */ | |
ed18356f DL |
267 | if (peer->su.sa.sa_family == AF_INET6) |
268 | SET_FLAG(flags, BMP_PEER_FLAG_V); | |
269 | else | |
270 | UNSET_FLAG(flags, BMP_PEER_FLAG_V); | |
271 | stream_putc(s, flags); | |
6c29258c YO |
272 | |
273 | /* Peer Distinguisher */ | |
274 | memset (&peer_distinguisher[0], 0, 8); | |
275 | stream_put(s, &peer_distinguisher[0], 8); | |
276 | ||
277 | /* Peer Address */ | |
ed18356f DL |
278 | if (peer->su.sa.sa_family == AF_INET6) |
279 | stream_put(s, &peer->su.sin6.sin6_addr, 16); | |
280 | else if (peer->su.sa.sa_family == AF_INET) { | |
281 | stream_putl(s, 0); | |
282 | stream_putl(s, 0); | |
283 | stream_putl(s, 0); | |
284 | stream_put_in_addr(s, &peer->su.sin.sin_addr); | |
285 | } else { | |
286 | stream_putl(s, 0); | |
6c29258c YO |
287 | stream_putl(s, 0); |
288 | stream_putl(s, 0); | |
289 | stream_putl(s, 0); | |
6c29258c YO |
290 | } |
291 | ||
292 | /* Peer AS */ | |
293 | stream_putl(s, peer->as); | |
294 | ||
295 | /* Peer BGP ID */ | |
296 | stream_put_in_addr(s, &peer->remote_id); | |
297 | ||
298 | /* Timestamp */ | |
ed18356f DL |
299 | if (tv) { |
300 | stream_putl(s, tv->tv_sec); | |
301 | stream_putl(s, tv->tv_usec); | |
302 | } else { | |
303 | stream_putl(s, 0); | |
304 | stream_putl(s, 0); | |
305 | } | |
6c29258c YO |
306 | } |
307 | ||
ed18356f DL |
308 | static void bmp_put_info_tlv(struct stream *s, uint16_t type, |
309 | const char *string) | |
6c29258c YO |
310 | { |
311 | int len = strlen (string); | |
312 | stream_putw(s, type); | |
313 | stream_putw(s, len); | |
314 | stream_put(s, string, len); | |
315 | } | |
316 | ||
317 | static int bmp_send_initiation(struct bmp *bmp) | |
318 | { | |
319 | int len; | |
320 | struct stream *s; | |
321 | s = stream_new(BGP_MAX_PACKET_SIZE); | |
322 | bmp_common_hdr(s, BMP_VERSION_3, BMP_TYPE_INITIATION); | |
323 | ||
324 | #define BMP_INFO_TYPE_SYSDESCR 1 | |
325 | #define BMP_INFO_TYPE_SYSNAME 2 | |
ed18356f DL |
326 | bmp_put_info_tlv(s, BMP_INFO_TYPE_SYSDESCR, |
327 | FRR_FULL_NAME " " FRR_VER_SHORT); | |
328 | bmp_put_info_tlv(s, BMP_INFO_TYPE_SYSNAME, cmd_hostname_get()); | |
6c29258c YO |
329 | |
330 | len = stream_get_endp(s); | |
331 | stream_putl_at(s, BMP_LENGTH_POS, len); //message length is set. | |
332 | ||
ed18356f DL |
333 | pullwr_write_stream(bmp->pullwr, s); |
334 | stream_free(s); | |
6c29258c YO |
335 | return 0; |
336 | } | |
337 | ||
ed18356f DL |
338 | static void bmp_notify_put(struct stream *s, struct bgp_notify *nfy) |
339 | { | |
340 | size_t len_pos; | |
341 | uint8_t marker[16] = { | |
342 | 0xff, 0xff, 0xff, 0xff, | |
343 | 0xff, 0xff, 0xff, 0xff, | |
344 | 0xff, 0xff, 0xff, 0xff, | |
345 | 0xff, 0xff, 0xff, 0xff, | |
346 | }; | |
347 | ||
348 | stream_put(s, marker, sizeof(marker)); | |
349 | len_pos = stream_get_endp(s); | |
350 | stream_putw(s, 0); | |
351 | stream_putc(s, BGP_MSG_NOTIFY); | |
352 | stream_putc(s, nfy->code); | |
353 | stream_putc(s, nfy->subcode); | |
354 | stream_put(s, nfy->data, nfy->length); | |
355 | ||
356 | stream_putw_at(s, len_pos, stream_get_endp(s) - len_pos | |
357 | + sizeof(marker)); | |
358 | } | |
359 | ||
360 | static struct stream *bmp_peerstate(struct peer *peer, bool down) | |
6c29258c | 361 | { |
6c29258c | 362 | struct stream *s; |
ed18356f DL |
363 | size_t len; |
364 | struct timeval uptime, uptime_real; | |
6c29258c | 365 | |
ed18356f DL |
366 | uptime.tv_sec = peer->uptime; |
367 | uptime.tv_usec = 0; | |
368 | monotime_to_realtime(&uptime, &uptime_real); | |
6c29258c | 369 | |
ed18356f | 370 | #define BGP_BMP_MAX_PACKET_SIZE 1024 |
6c29258c | 371 | s = stream_new(BGP_MAX_PACKET_SIZE); |
6c29258c | 372 | |
feb17238 | 373 | if (peer_established(peer) && !down) { |
ed18356f | 374 | struct bmp_bgp_peer *bbpeer; |
6c29258c | 375 | |
ed18356f DL |
376 | bmp_common_hdr(s, BMP_VERSION_3, |
377 | BMP_TYPE_PEER_UP_NOTIFICATION); | |
378 | bmp_per_peer_hdr(s, peer, 0, &uptime_real); | |
6c29258c YO |
379 | |
380 | /* Local Address (16 bytes) */ | |
381 | if (peer->su_local->sa.sa_family == AF_INET6) | |
382 | stream_put(s, &peer->su_local->sin6.sin6_addr, 16); | |
383 | else if (peer->su_local->sa.sa_family == AF_INET) { | |
384 | stream_putl(s, 0); | |
385 | stream_putl(s, 0); | |
386 | stream_putl(s, 0); | |
387 | stream_put_in_addr(s, &peer->su_local->sin.sin_addr); | |
388 | } | |
389 | ||
390 | /* Local Port, Remote Port */ | |
391 | if (peer->su_local->sa.sa_family == AF_INET6) | |
9e681c84 | 392 | stream_putw(s, htons(peer->su_local->sin6.sin6_port)); |
6c29258c | 393 | else if (peer->su_local->sa.sa_family == AF_INET) |
9e681c84 | 394 | stream_putw(s, htons(peer->su_local->sin.sin_port)); |
6c29258c | 395 | if (peer->su_remote->sa.sa_family == AF_INET6) |
9e681c84 | 396 | stream_putw(s, htons(peer->su_remote->sin6.sin6_port)); |
6c29258c | 397 | else if (peer->su_remote->sa.sa_family == AF_INET) |
9e681c84 | 398 | stream_putw(s, htons(peer->su_remote->sin.sin_port)); |
6c29258c | 399 | |
ed18356f DL |
400 | static const uint8_t dummy_open[] = { |
401 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
402 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
403 | 0x00, 0x13, 0x01, | |
404 | }; | |
6c29258c | 405 | |
ed18356f | 406 | bbpeer = bmp_bgp_peer_find(peer->qobj_node.nid); |
6c29258c | 407 | |
ed18356f DL |
408 | if (bbpeer && bbpeer->open_tx) |
409 | stream_put(s, bbpeer->open_tx, bbpeer->open_tx_len); | |
410 | else { | |
411 | stream_put(s, dummy_open, sizeof(dummy_open)); | |
63efca0e DL |
412 | zlog_warn("bmp: missing TX OPEN message for peer %s", |
413 | peer->host); | |
ed18356f DL |
414 | } |
415 | if (bbpeer && bbpeer->open_rx) | |
416 | stream_put(s, bbpeer->open_rx, bbpeer->open_rx_len); | |
417 | else { | |
418 | stream_put(s, dummy_open, sizeof(dummy_open)); | |
63efca0e DL |
419 | zlog_warn("bmp: missing RX OPEN message for peer %s", |
420 | peer->host); | |
ed18356f | 421 | } |
6c29258c | 422 | |
ed18356f DL |
423 | if (peer->desc) |
424 | bmp_put_info_tlv(s, 0, peer->desc); | |
425 | } else { | |
426 | uint8_t type; | |
427 | size_t type_pos; | |
428 | ||
429 | bmp_common_hdr(s, BMP_VERSION_3, | |
430 | BMP_TYPE_PEER_DOWN_NOTIFICATION); | |
431 | bmp_per_peer_hdr(s, peer, 0, &uptime_real); | |
432 | ||
433 | type_pos = stream_get_endp(s); | |
434 | stream_putc(s, 0); /* placeholder for down reason */ | |
435 | ||
436 | switch (peer->last_reset) { | |
437 | case PEER_DOWN_NOTIFY_RECEIVED: | |
438 | type = BMP_PEERDOWN_REMOTE_NOTIFY; | |
439 | bmp_notify_put(s, &peer->notify); | |
440 | break; | |
441 | case PEER_DOWN_CLOSE_SESSION: | |
442 | type = BMP_PEERDOWN_REMOTE_CLOSE; | |
443 | break; | |
21e8caa2 QY |
444 | case PEER_DOWN_WAITING_NHT: |
445 | type = BMP_PEERDOWN_LOCAL_FSM; | |
446 | stream_putw(s, BGP_FSM_TcpConnectionFails); | |
447 | break; | |
448 | /* | |
449 | * TODO: Map remaining PEER_DOWN_* reasons to RFC event codes. | |
450 | * TODO: Implement BMP_PEERDOWN_LOCAL_NOTIFY. | |
451 | * | |
452 | * See RFC7854 ss. 4.9 | |
453 | */ | |
ed18356f | 454 | default: |
21e8caa2 QY |
455 | type = BMP_PEERDOWN_LOCAL_FSM; |
456 | stream_putw(s, BMP_PEER_DOWN_NO_RELEVANT_EVENT_CODE); | |
ed18356f | 457 | break; |
6c29258c | 458 | } |
ed18356f | 459 | stream_putc_at(s, type_pos, type); |
6c29258c YO |
460 | } |
461 | ||
ed18356f DL |
462 | len = stream_get_endp(s); |
463 | stream_putl_at(s, BMP_LENGTH_POS, len); //message length is set. | |
464 | return s; | |
465 | } | |
466 | ||
467 | ||
468 | static int bmp_send_peerup(struct bmp *bmp) | |
469 | { | |
470 | struct peer *peer; | |
471 | struct listnode *node; | |
472 | struct stream *s; | |
473 | ||
474 | /* Walk down all peers */ | |
475 | for (ALL_LIST_ELEMENTS_RO(bmp->targets->bgp->peer, node, peer)) { | |
476 | s = bmp_peerstate(peer, false); | |
477 | pullwr_write_stream(bmp->pullwr, s); | |
478 | stream_free(s); | |
479 | } | |
6c29258c YO |
480 | |
481 | return 0; | |
482 | } | |
483 | ||
ed18356f DL |
484 | /* XXX: kludge - filling the pullwr's buffer */ |
485 | static void bmp_send_all(struct bmp_bgp *bmpbgp, struct stream *s) | |
486 | { | |
487 | struct bmp_targets *bt; | |
488 | struct bmp *bmp; | |
489 | ||
490 | frr_each(bmp_targets, &bmpbgp->targets, bt) | |
491 | frr_each(bmp_session, &bt->sessions, bmp) | |
492 | pullwr_write_stream(bmp->pullwr, s); | |
493 | stream_free(s); | |
494 | } | |
495 | ||
496 | /* | |
497 | * Route Mirroring | |
498 | */ | |
499 | ||
500 | #define BMP_MIRROR_TLV_TYPE_BGP_MESSAGE 0 | |
501 | #define BMP_MIRROR_TLV_TYPE_INFO 1 | |
502 | ||
503 | #define BMP_MIRROR_INFO_CODE_ERRORPDU 0 | |
504 | #define BMP_MIRROR_INFO_CODE_LOSTMSGS 1 | |
505 | ||
506 | static struct bmp_mirrorq *bmp_pull_mirror(struct bmp *bmp) | |
507 | { | |
508 | struct bmp_mirrorq *bmq; | |
509 | ||
510 | bmq = bmp->mirrorpos; | |
511 | if (!bmq) | |
512 | return NULL; | |
513 | ||
514 | bmp->mirrorpos = bmp_mirrorq_next(&bmp->targets->bmpbgp->mirrorq, bmq); | |
515 | ||
516 | bmq->refcount--; | |
517 | if (!bmq->refcount) { | |
518 | bmp->targets->bmpbgp->mirror_qsize -= sizeof(*bmq) + bmq->len; | |
519 | bmp_mirrorq_del(&bmp->targets->bmpbgp->mirrorq, bmq); | |
520 | } | |
521 | return bmq; | |
522 | } | |
523 | ||
524 | static void bmp_mirror_cull(struct bmp_bgp *bmpbgp) | |
525 | { | |
526 | while (bmpbgp->mirror_qsize > bmpbgp->mirror_qsizelimit) { | |
527 | struct bmp_mirrorq *bmq, *inner; | |
528 | struct bmp_targets *bt; | |
529 | struct bmp *bmp; | |
530 | ||
531 | bmq = bmp_mirrorq_first(&bmpbgp->mirrorq); | |
532 | ||
533 | frr_each(bmp_targets, &bmpbgp->targets, bt) { | |
534 | if (!bt->mirror) | |
535 | continue; | |
536 | frr_each(bmp_session, &bt->sessions, bmp) { | |
537 | if (bmp->mirrorpos != bmq) | |
538 | continue; | |
539 | ||
540 | while ((inner = bmp_pull_mirror(bmp))) { | |
541 | if (!inner->refcount) | |
542 | XFREE(MTYPE_BMP_MIRRORQ, | |
543 | inner); | |
544 | } | |
545 | ||
546 | zlog_warn("bmp[%s] lost mirror messages due to buffer size limit", | |
547 | bmp->remote); | |
548 | bmp->mirror_lost = true; | |
549 | pullwr_bump(bmp->pullwr); | |
550 | } | |
551 | } | |
552 | } | |
553 | } | |
554 | ||
d35a6c28 DL |
555 | static int bmp_mirror_packet(struct peer *peer, uint8_t type, bgp_size_t size, |
556 | struct stream *packet) | |
6c29258c | 557 | { |
ed18356f DL |
558 | struct bmp_bgp *bmpbgp = bmp_bgp_find(peer->bgp); |
559 | struct timeval tv; | |
560 | struct bmp_mirrorq *qitem; | |
561 | struct bmp_targets *bt; | |
6c29258c | 562 | struct bmp *bmp; |
6c29258c | 563 | |
e0302d7e QY |
564 | frrtrace(3, frr_bgp, bmp_mirror_packet, peer, type, packet); |
565 | ||
ed18356f DL |
566 | gettimeofday(&tv, NULL); |
567 | ||
568 | if (type == BGP_MSG_OPEN) { | |
569 | struct bmp_bgp_peer *bbpeer = bmp_bgp_peer_get(peer); | |
570 | ||
571 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_rx); | |
572 | ||
573 | bbpeer->open_rx_len = size; | |
574 | bbpeer->open_rx = XMALLOC(MTYPE_BMP_OPEN, size); | |
575 | memcpy(bbpeer->open_rx, packet->data, size); | |
576 | } | |
577 | ||
578 | if (!bmpbgp) | |
d35a6c28 | 579 | return 0; |
6c29258c | 580 | |
ed18356f DL |
581 | qitem = XCALLOC(MTYPE_BMP_MIRRORQ, sizeof(*qitem) + size); |
582 | qitem->peerid = peer->qobj_node.nid; | |
583 | qitem->tv = tv; | |
584 | qitem->len = size; | |
585 | memcpy(qitem->data, packet->data, size); | |
586 | ||
587 | frr_each(bmp_targets, &bmpbgp->targets, bt) { | |
588 | if (!bt->mirror) | |
589 | continue; | |
590 | frr_each(bmp_session, &bt->sessions, bmp) { | |
591 | qitem->refcount++; | |
592 | if (!bmp->mirrorpos) | |
593 | bmp->mirrorpos = qitem; | |
594 | pullwr_bump(bmp->pullwr); | |
595 | } | |
596 | } | |
597 | if (qitem->refcount == 0) | |
598 | XFREE(MTYPE_BMP_MIRRORQ, qitem); | |
599 | else { | |
600 | bmpbgp->mirror_qsize += sizeof(*qitem) + size; | |
601 | bmp_mirrorq_add_tail(&bmpbgp->mirrorq, qitem); | |
602 | ||
603 | bmp_mirror_cull(bmpbgp); | |
604 | ||
605 | bmpbgp->mirror_qsizemax = MAX(bmpbgp->mirror_qsizemax, | |
606 | bmpbgp->mirror_qsize); | |
607 | } | |
608 | return 0; | |
609 | } | |
610 | ||
611 | static void bmp_wrmirror_lost(struct bmp *bmp, struct pullwr *pullwr) | |
612 | { | |
613 | struct stream *s; | |
614 | struct timeval tv; | |
615 | ||
616 | gettimeofday(&tv, NULL); | |
617 | ||
618 | s = stream_new(BGP_MAX_PACKET_SIZE); | |
619 | ||
620 | bmp_common_hdr(s, BMP_VERSION_3, BMP_TYPE_ROUTE_MIRRORING); | |
621 | bmp_per_peer_hdr(s, bmp->targets->bgp->peer_self, 0, &tv); | |
622 | ||
623 | stream_putw(s, BMP_MIRROR_TLV_TYPE_INFO); | |
624 | stream_putw(s, 2); | |
625 | stream_putw(s, BMP_MIRROR_INFO_CODE_LOSTMSGS); | |
626 | stream_putl_at(s, BMP_LENGTH_POS, stream_get_endp(s)); | |
627 | ||
628 | bmp->cnt_mirror_overruns++; | |
629 | pullwr_write_stream(bmp->pullwr, s); | |
630 | stream_free(s); | |
631 | } | |
632 | ||
633 | static bool bmp_wrmirror(struct bmp *bmp, struct pullwr *pullwr) | |
634 | { | |
635 | struct bmp_mirrorq *bmq; | |
636 | struct peer *peer; | |
637 | bool written = false; | |
638 | ||
639 | if (bmp->mirror_lost) { | |
640 | bmp_wrmirror_lost(bmp, pullwr); | |
641 | bmp->mirror_lost = false; | |
642 | return true; | |
643 | } | |
644 | ||
645 | bmq = bmp_pull_mirror(bmp); | |
646 | if (!bmq) | |
647 | return false; | |
648 | ||
649 | peer = QOBJ_GET_TYPESAFE(bmq->peerid, peer); | |
650 | if (!peer) { | |
651 | zlog_info("bmp: skipping mirror message for deleted peer"); | |
652 | goto out; | |
653 | } | |
654 | ||
655 | struct stream *s; | |
6c29258c YO |
656 | s = stream_new(BGP_MAX_PACKET_SIZE); |
657 | ||
658 | bmp_common_hdr(s, BMP_VERSION_3, BMP_TYPE_ROUTE_MIRRORING); | |
ed18356f | 659 | bmp_per_peer_hdr(s, peer, 0, &bmq->tv); |
6c29258c YO |
660 | |
661 | /* BMP Mirror TLV. */ | |
6c29258c | 662 | stream_putw(s, BMP_MIRROR_TLV_TYPE_BGP_MESSAGE); |
ed18356f DL |
663 | stream_putw(s, bmq->len); |
664 | stream_putl_at(s, BMP_LENGTH_POS, stream_get_endp(s) + bmq->len); | |
6c29258c | 665 | |
ed18356f DL |
666 | bmp->cnt_mirror++; |
667 | pullwr_write_stream(bmp->pullwr, s); | |
668 | pullwr_write(bmp->pullwr, bmq->data, bmq->len); | |
6c29258c | 669 | |
ed18356f DL |
670 | stream_free(s); |
671 | written = true; | |
6c29258c | 672 | |
ed18356f DL |
673 | out: |
674 | if (!bmq->refcount) | |
675 | XFREE(MTYPE_BMP_MIRRORQ, bmq); | |
676 | return written; | |
6c29258c YO |
677 | } |
678 | ||
ed18356f DL |
679 | static int bmp_outgoing_packet(struct peer *peer, uint8_t type, bgp_size_t size, |
680 | struct stream *packet) | |
6c29258c | 681 | { |
ed18356f | 682 | if (type == BGP_MSG_OPEN) { |
e0302d7e QY |
683 | frrtrace(2, frr_bgp, bmp_update_saved_open, peer, packet); |
684 | ||
ed18356f | 685 | struct bmp_bgp_peer *bbpeer = bmp_bgp_peer_get(peer); |
6c29258c | 686 | |
ed18356f | 687 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_tx); |
6c29258c | 688 | |
ed18356f DL |
689 | bbpeer->open_tx_len = size; |
690 | bbpeer->open_tx = XMALLOC(MTYPE_BMP_OPEN, size); | |
691 | memcpy(bbpeer->open_tx, packet->data, size); | |
692 | } | |
693 | return 0; | |
694 | } | |
6c29258c | 695 | |
60563d0e | 696 | static int bmp_peer_status_changed(struct peer *peer) |
ed18356f DL |
697 | { |
698 | struct bmp_bgp *bmpbgp = bmp_bgp_find(peer->bgp); | |
60563d0e | 699 | struct bmp_bgp_peer *bbpeer, *bbdopp; |
6c29258c | 700 | |
e0302d7e QY |
701 | frrtrace(1, frr_bgp, bmp_peer_status_changed, peer); |
702 | ||
ed18356f DL |
703 | if (!bmpbgp) |
704 | return 0; | |
6c29258c | 705 | |
60563d0e DA |
706 | if (peer->status == Deleted) { |
707 | bbpeer = bmp_bgp_peer_find(peer->qobj_node.nid); | |
708 | if (bbpeer) { | |
709 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_rx); | |
710 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_tx); | |
711 | bmp_peerh_del(&bmp_peerh, bbpeer); | |
712 | XFREE(MTYPE_BMP_PEER, bbpeer); | |
713 | } | |
714 | return 0; | |
715 | } | |
716 | ||
df9e8ae7 | 717 | /* Check if this peer just went to Established */ |
fd2e2db6 | 718 | if ((peer->ostatus != OpenConfirm) || !(peer_established(peer))) |
df9e8ae7 MS |
719 | return 0; |
720 | ||
ed18356f | 721 | if (peer->doppelganger && (peer->doppelganger->status != Deleted)) { |
ed18356f DL |
722 | bbpeer = bmp_bgp_peer_get(peer); |
723 | bbdopp = bmp_bgp_peer_find(peer->doppelganger->qobj_node.nid); | |
724 | if (bbdopp) { | |
725 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_tx); | |
726 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_rx); | |
6c29258c | 727 | |
ed18356f DL |
728 | bbpeer->open_tx = bbdopp->open_tx; |
729 | bbpeer->open_tx_len = bbdopp->open_tx_len; | |
730 | bbpeer->open_rx = bbdopp->open_rx; | |
731 | bbpeer->open_rx_len = bbdopp->open_rx_len; | |
6c29258c | 732 | |
ed18356f DL |
733 | bmp_peerh_del(&bmp_peerh, bbdopp); |
734 | XFREE(MTYPE_BMP_PEER, bbdopp); | |
735 | } | |
6c29258c | 736 | } |
ed18356f DL |
737 | |
738 | bmp_send_all(bmpbgp, bmp_peerstate(peer, false)); | |
6c29258c YO |
739 | return 0; |
740 | } | |
741 | ||
ed18356f | 742 | static int bmp_peer_backward(struct peer *peer) |
6c29258c | 743 | { |
ed18356f DL |
744 | struct bmp_bgp *bmpbgp = bmp_bgp_find(peer->bgp); |
745 | struct bmp_bgp_peer *bbpeer; | |
6c29258c | 746 | |
e0302d7e QY |
747 | frrtrace(1, frr_bgp, bmp_peer_backward_transition, peer); |
748 | ||
ed18356f DL |
749 | if (!bmpbgp) |
750 | return 0; | |
6c29258c | 751 | |
ed18356f DL |
752 | bbpeer = bmp_bgp_peer_find(peer->qobj_node.nid); |
753 | if (bbpeer) { | |
754 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_tx); | |
755 | bbpeer->open_tx_len = 0; | |
756 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_rx); | |
757 | bbpeer->open_rx_len = 0; | |
758 | } | |
6c29258c | 759 | |
ed18356f DL |
760 | bmp_send_all(bmpbgp, bmp_peerstate(peer, true)); |
761 | return 0; | |
762 | } | |
6c29258c | 763 | |
ed18356f DL |
764 | static void bmp_eor(struct bmp *bmp, afi_t afi, safi_t safi, uint8_t flags) |
765 | { | |
766 | struct peer *peer; | |
767 | struct listnode *node; | |
768 | struct stream *s, *s2; | |
617975d1 DS |
769 | iana_afi_t pkt_afi = IANA_AFI_IPV4; |
770 | iana_safi_t pkt_safi = IANA_SAFI_UNICAST; | |
6c29258c | 771 | |
e0302d7e QY |
772 | frrtrace(3, frr_bgp, bmp_eor, afi, safi, flags); |
773 | ||
ed18356f | 774 | s = stream_new(BGP_MAX_PACKET_SIZE); |
6c29258c | 775 | |
ed18356f DL |
776 | /* Make BGP update packet. */ |
777 | bgp_packet_set_marker(s, BGP_MSG_UPDATE); | |
6c29258c | 778 | |
ed18356f DL |
779 | /* Unfeasible Routes Length */ |
780 | stream_putw(s, 0); | |
6c29258c | 781 | |
ed18356f DL |
782 | if (afi == AFI_IP && safi == SAFI_UNICAST) { |
783 | /* Total Path Attribute Length */ | |
784 | stream_putw(s, 0); | |
785 | } else { | |
786 | /* Convert AFI, SAFI to values for packet. */ | |
787 | bgp_map_afi_safi_int2iana(afi, safi, &pkt_afi, &pkt_safi); | |
788 | ||
789 | /* Total Path Attribute Length */ | |
790 | stream_putw(s, 6); | |
791 | stream_putc(s, BGP_ATTR_FLAG_OPTIONAL); | |
792 | stream_putc(s, BGP_ATTR_MP_UNREACH_NLRI); | |
793 | stream_putc(s, 3); | |
794 | stream_putw(s, pkt_afi); | |
795 | stream_putc(s, pkt_safi); | |
6c29258c YO |
796 | } |
797 | ||
ed18356f | 798 | bgp_packet_set_size(s); |
6c29258c | 799 | |
ed18356f DL |
800 | for (ALL_LIST_ELEMENTS_RO(bmp->targets->bgp->peer, node, peer)) { |
801 | if (!peer->afc_nego[afi][safi]) | |
802 | continue; | |
6c29258c | 803 | |
ed18356f | 804 | s2 = stream_new(BGP_MAX_PACKET_SIZE); |
6c29258c | 805 | |
ed18356f DL |
806 | bmp_common_hdr(s2, BMP_VERSION_3, |
807 | BMP_TYPE_ROUTE_MONITORING); | |
808 | bmp_per_peer_hdr(s2, peer, flags, NULL); | |
6c29258c | 809 | |
ed18356f DL |
810 | stream_putl_at(s2, BMP_LENGTH_POS, |
811 | stream_get_endp(s) + stream_get_endp(s2)); | |
6c29258c | 812 | |
ed18356f DL |
813 | bmp->cnt_update++; |
814 | pullwr_write_stream(bmp->pullwr, s2); | |
815 | pullwr_write_stream(bmp->pullwr, s); | |
816 | stream_free(s2); | |
817 | } | |
818 | stream_free(s); | |
6c29258c YO |
819 | } |
820 | ||
87102aa0 | 821 | static struct stream *bmp_update(const struct prefix *p, struct prefix_rd *prd, |
822 | struct peer *peer, struct attr *attr, | |
823 | afi_t afi, safi_t safi) | |
6c29258c | 824 | { |
ed18356f DL |
825 | struct bpacket_attr_vec_arr vecarr; |
826 | struct stream *s; | |
827 | size_t attrlen_pos = 0, mpattrlen_pos = 0; | |
828 | bgp_size_t total_attr_len = 0; | |
829 | ||
830 | bpacket_attr_vec_arr_reset(&vecarr); | |
831 | ||
832 | s = stream_new(BGP_MAX_PACKET_SIZE); | |
833 | bgp_packet_set_marker(s, BGP_MSG_UPDATE); | |
834 | ||
835 | /* 2: withdrawn routes length */ | |
836 | stream_putw(s, 0); | |
837 | ||
838 | /* 3: total attributes length - attrlen_pos stores the position */ | |
839 | attrlen_pos = stream_get_endp(s); | |
840 | stream_putw(s, 0); | |
841 | ||
842 | /* 5: Encode all the attributes, except MP_REACH_NLRI attr. */ | |
97a52c82 DA |
843 | total_attr_len = |
844 | bgp_packet_attribute(NULL, peer, s, attr, &vecarr, NULL, afi, | |
845 | safi, peer, NULL, NULL, 0, 0, 0, NULL); | |
6c29258c | 846 | |
ed18356f | 847 | /* space check? */ |
6c29258c | 848 | |
ed18356f DL |
849 | /* peer_cap_enhe & add-path removed */ |
850 | if (afi == AFI_IP && safi == SAFI_UNICAST) | |
851 | stream_put_prefix(s, p); | |
852 | else { | |
853 | size_t p1 = stream_get_endp(s); | |
6c29258c | 854 | |
ed18356f | 855 | /* MPLS removed for now */ |
6c29258c | 856 | |
ed18356f DL |
857 | mpattrlen_pos = bgp_packet_mpattr_start(s, peer, afi, safi, |
858 | &vecarr, attr); | |
87102aa0 | 859 | bgp_packet_mpattr_prefix(s, afi, safi, p, prd, NULL, 0, 0, 0, |
860 | attr); | |
ed18356f DL |
861 | bgp_packet_mpattr_end(s, mpattrlen_pos); |
862 | total_attr_len += stream_get_endp(s) - p1; | |
6c29258c YO |
863 | } |
864 | ||
ed18356f DL |
865 | /* set the total attribute length correctly */ |
866 | stream_putw_at(s, attrlen_pos, total_attr_len); | |
867 | bgp_packet_set_size(s); | |
868 | return s; | |
869 | } | |
6c29258c | 870 | |
87102aa0 | 871 | static struct stream *bmp_withdraw(const struct prefix *p, |
872 | struct prefix_rd *prd, afi_t afi, | |
5f040085 | 873 | safi_t safi) |
ed18356f DL |
874 | { |
875 | struct stream *s; | |
876 | size_t attrlen_pos = 0, mp_start, mplen_pos; | |
877 | bgp_size_t total_attr_len = 0; | |
878 | bgp_size_t unfeasible_len; | |
6c29258c | 879 | |
ed18356f | 880 | s = stream_new(BGP_MAX_PACKET_SIZE); |
6c29258c | 881 | |
ed18356f DL |
882 | bgp_packet_set_marker(s, BGP_MSG_UPDATE); |
883 | stream_putw(s, 0); | |
6c29258c | 884 | |
ed18356f DL |
885 | if (afi == AFI_IP && safi == SAFI_UNICAST) { |
886 | stream_put_prefix(s, p); | |
887 | unfeasible_len = stream_get_endp(s) - BGP_HEADER_SIZE | |
888 | - BGP_UNFEASIBLE_LEN; | |
889 | stream_putw_at(s, BGP_HEADER_SIZE, unfeasible_len); | |
890 | stream_putw(s, 0); | |
891 | } else { | |
892 | attrlen_pos = stream_get_endp(s); | |
893 | /* total attr length = 0 for now. reevaluate later */ | |
894 | stream_putw(s, 0); | |
895 | mp_start = stream_get_endp(s); | |
896 | mplen_pos = bgp_packet_mpunreach_start(s, afi, safi); | |
897 | ||
87102aa0 | 898 | bgp_packet_mpunreach_prefix(s, p, afi, safi, prd, NULL, 0, 0, 0, |
899 | NULL); | |
ed18356f DL |
900 | /* Set the mp_unreach attr's length */ |
901 | bgp_packet_mpunreach_end(s, mplen_pos); | |
902 | ||
903 | /* Set total path attribute length. */ | |
904 | total_attr_len = stream_get_endp(s) - mp_start; | |
905 | stream_putw_at(s, attrlen_pos, total_attr_len); | |
906 | } | |
907 | ||
908 | bgp_packet_set_size(s); | |
909 | return s; | |
910 | } | |
911 | ||
912 | static void bmp_monitor(struct bmp *bmp, struct peer *peer, uint8_t flags, | |
87102aa0 | 913 | const struct prefix *p, struct prefix_rd *prd, |
914 | struct attr *attr, afi_t afi, safi_t safi, | |
915 | time_t uptime) | |
ed18356f DL |
916 | { |
917 | struct stream *hdr, *msg; | |
918 | struct timeval tv = { .tv_sec = uptime, .tv_usec = 0 }; | |
02cee158 | 919 | struct timeval uptime_real; |
ed18356f | 920 | |
02cee158 | 921 | monotime_to_realtime(&tv, &uptime_real); |
ed18356f | 922 | if (attr) |
87102aa0 | 923 | msg = bmp_update(p, prd, peer, attr, afi, safi); |
ed18356f | 924 | else |
87102aa0 | 925 | msg = bmp_withdraw(p, prd, afi, safi); |
ed18356f DL |
926 | |
927 | hdr = stream_new(BGP_MAX_PACKET_SIZE); | |
928 | bmp_common_hdr(hdr, BMP_VERSION_3, BMP_TYPE_ROUTE_MONITORING); | |
02cee158 | 929 | bmp_per_peer_hdr(hdr, peer, flags, &uptime_real); |
ed18356f DL |
930 | |
931 | stream_putl_at(hdr, BMP_LENGTH_POS, | |
932 | stream_get_endp(hdr) + stream_get_endp(msg)); | |
933 | ||
934 | bmp->cnt_update++; | |
935 | pullwr_write_stream(bmp->pullwr, hdr); | |
936 | pullwr_write_stream(bmp->pullwr, msg); | |
937 | stream_free(hdr); | |
938 | stream_free(msg); | |
939 | } | |
940 | ||
941 | static bool bmp_wrsync(struct bmp *bmp, struct pullwr *pullwr) | |
942 | { | |
943 | afi_t afi; | |
944 | safi_t safi; | |
945 | ||
946 | if (bmp->syncafi == AFI_MAX) { | |
947 | FOREACH_AFI_SAFI (afi, safi) { | |
948 | if (bmp->afistate[afi][safi] != BMP_AFI_NEEDSYNC) | |
949 | continue; | |
950 | ||
951 | bmp->afistate[afi][safi] = BMP_AFI_SYNC; | |
952 | ||
953 | bmp->syncafi = afi; | |
954 | bmp->syncsafi = safi; | |
955 | bmp->syncpeerid = 0; | |
956 | memset(&bmp->syncpos, 0, sizeof(bmp->syncpos)); | |
957 | bmp->syncpos.family = afi2family(afi); | |
87102aa0 | 958 | bmp->syncrdpos = NULL; |
ed18356f DL |
959 | zlog_info("bmp[%s] %s %s sending table", |
960 | bmp->remote, | |
961 | afi2str(bmp->syncafi), | |
962 | safi2str(bmp->syncsafi)); | |
963 | /* break does not work here, 2 loops... */ | |
964 | goto afibreak; | |
6c29258c | 965 | } |
ed18356f DL |
966 | if (bmp->syncafi == AFI_MAX) |
967 | return false; | |
968 | } | |
6c29258c | 969 | |
ed18356f DL |
970 | afibreak: |
971 | afi = bmp->syncafi; | |
972 | safi = bmp->syncsafi; | |
973 | ||
974 | if (!bmp->targets->afimon[afi][safi]) { | |
975 | /* shouldn't happen */ | |
976 | bmp->afistate[afi][safi] = BMP_AFI_INACTIVE; | |
977 | bmp->syncafi = AFI_MAX; | |
978 | bmp->syncsafi = SAFI_MAX; | |
979 | return true; | |
980 | } | |
981 | ||
982 | struct bgp_table *table = bmp->targets->bgp->rib[afi][safi]; | |
a25ae82f | 983 | struct bgp_dest *bn = NULL; |
ed18356f DL |
984 | struct bgp_path_info *bpi = NULL, *bpiter; |
985 | struct bgp_adj_in *adjin = NULL, *adjiter; | |
986 | ||
5dde2965 FD |
987 | if ((afi == AFI_L2VPN && safi == SAFI_EVPN) || |
988 | (safi == SAFI_MPLS_VPN)) { | |
87102aa0 | 989 | /* initialize syncrdpos to the first |
990 | * mid-layer table entry | |
991 | */ | |
7b3a3805 | 992 | if (!bmp->syncrdpos) { |
87102aa0 | 993 | bmp->syncrdpos = bgp_table_top(table); |
7b3a3805 DS |
994 | if (!bmp->syncrdpos) |
995 | goto eor; | |
996 | } | |
87102aa0 | 997 | |
998 | /* look for a valid mid-layer table */ | |
999 | do { | |
1000 | table = bgp_dest_get_bgp_table_info(bmp->syncrdpos); | |
1001 | if (table) { | |
1002 | break; | |
1003 | } | |
1004 | bmp->syncrdpos = bgp_route_next(bmp->syncrdpos); | |
1005 | } while (bmp->syncrdpos); | |
1006 | ||
1007 | /* mid-layer table completed */ | |
1008 | if (!bmp->syncrdpos) | |
1009 | goto eor; | |
1010 | } | |
1011 | ||
ed18356f DL |
1012 | bn = bgp_node_lookup(table, &bmp->syncpos); |
1013 | do { | |
1014 | if (!bn) { | |
1015 | bn = bgp_table_get_next(table, &bmp->syncpos); | |
1016 | if (!bn) { | |
5dde2965 FD |
1017 | if ((afi == AFI_L2VPN && safi == SAFI_EVPN) || |
1018 | (safi == SAFI_MPLS_VPN)) { | |
87102aa0 | 1019 | /* reset bottom-layer pointer */ |
1020 | memset(&bmp->syncpos, 0, | |
1021 | sizeof(bmp->syncpos)); | |
1022 | bmp->syncpos.family = afi2family(afi); | |
1023 | /* check whethere there is a valid | |
1024 | * next mid-layer table, otherwise | |
1025 | * declare table completed (eor) | |
1026 | */ | |
1027 | for (bmp->syncrdpos = bgp_route_next( | |
1028 | bmp->syncrdpos); | |
1029 | bmp->syncrdpos; | |
1030 | bmp->syncrdpos = bgp_route_next( | |
1031 | bmp->syncrdpos)) | |
1032 | if (bgp_dest_get_bgp_table_info( | |
1033 | bmp->syncrdpos)) | |
1034 | return true; | |
1035 | } | |
1036 | eor: | |
ed18356f DL |
1037 | zlog_info("bmp[%s] %s %s table completed (EoR)", |
1038 | bmp->remote, afi2str(afi), | |
1039 | safi2str(safi)); | |
1040 | bmp_eor(bmp, afi, safi, BMP_PEER_FLAG_L); | |
1041 | bmp_eor(bmp, afi, safi, 0); | |
1042 | ||
1043 | bmp->afistate[afi][safi] = BMP_AFI_LIVE; | |
1044 | bmp->syncafi = AFI_MAX; | |
1045 | bmp->syncsafi = SAFI_MAX; | |
1046 | return true; | |
1047 | } | |
1048 | bmp->syncpeerid = 0; | |
9bcb3eef | 1049 | prefix_copy(&bmp->syncpos, bgp_dest_get_prefix(bn)); |
6c29258c YO |
1050 | } |
1051 | ||
ed18356f | 1052 | if (bmp->targets->afimon[afi][safi] & BMP_MON_POSTPOLICY) { |
87102aa0 | 1053 | for (bpiter = bgp_dest_get_bgp_path_info(bn); bpiter; |
1054 | bpiter = bpiter->next) { | |
ed18356f DL |
1055 | if (!CHECK_FLAG(bpiter->flags, BGP_PATH_VALID)) |
1056 | continue; | |
1057 | if (bpiter->peer->qobj_node.nid | |
1058 | <= bmp->syncpeerid) | |
1059 | continue; | |
1060 | if (bpi && bpiter->peer->qobj_node.nid | |
1061 | > bpi->peer->qobj_node.nid) | |
1062 | continue; | |
1063 | bpi = bpiter; | |
1064 | } | |
1065 | } | |
1066 | if (bmp->targets->afimon[afi][safi] & BMP_MON_PREPOLICY) { | |
1067 | for (adjiter = bn->adj_in; adjiter; | |
1068 | adjiter = adjiter->next) { | |
1069 | if (adjiter->peer->qobj_node.nid | |
1070 | <= bmp->syncpeerid) | |
1071 | continue; | |
1072 | if (adjin && adjiter->peer->qobj_node.nid | |
1073 | > adjin->peer->qobj_node.nid) | |
1074 | continue; | |
1075 | adjin = adjiter; | |
1076 | } | |
1077 | } | |
1078 | if (bpi || adjin) | |
1079 | break; | |
1080 | ||
1081 | bn = NULL; | |
1082 | } while (1); | |
1083 | ||
1084 | if (adjin && bpi | |
1085 | && adjin->peer->qobj_node.nid < bpi->peer->qobj_node.nid) { | |
1086 | bpi = NULL; | |
1087 | bmp->syncpeerid = adjin->peer->qobj_node.nid; | |
1088 | } else if (adjin && bpi | |
1089 | && adjin->peer->qobj_node.nid > bpi->peer->qobj_node.nid) { | |
1090 | adjin = NULL; | |
1091 | bmp->syncpeerid = bpi->peer->qobj_node.nid; | |
1092 | } else if (bpi) { | |
1093 | bmp->syncpeerid = bpi->peer->qobj_node.nid; | |
1094 | } else if (adjin) { | |
1095 | bmp->syncpeerid = adjin->peer->qobj_node.nid; | |
1096 | } | |
6c29258c | 1097 | |
9bcb3eef | 1098 | const struct prefix *bn_p = bgp_dest_get_prefix(bn); |
87102aa0 | 1099 | struct prefix_rd *prd = NULL; |
5dde2965 FD |
1100 | if (((afi == AFI_L2VPN) && (safi == SAFI_EVPN)) || |
1101 | (safi == SAFI_MPLS_VPN)) | |
87102aa0 | 1102 | prd = (struct prefix_rd *)bgp_dest_get_prefix(bmp->syncrdpos); |
b54892e0 | 1103 | |
ed18356f | 1104 | if (bpi) |
87102aa0 | 1105 | bmp_monitor(bmp, bpi->peer, BMP_PEER_FLAG_L, bn_p, prd, |
1106 | bpi->attr, afi, safi, bpi->uptime); | |
ed18356f | 1107 | if (adjin) |
87102aa0 | 1108 | bmp_monitor(bmp, adjin->peer, 0, bn_p, prd, adjin->attr, afi, |
1109 | safi, adjin->uptime); | |
6c29258c | 1110 | |
a25ae82f DA |
1111 | if (bn) |
1112 | bgp_dest_unlock_node(bn); | |
1113 | ||
ed18356f | 1114 | return true; |
6c29258c YO |
1115 | } |
1116 | ||
ed18356f | 1117 | static struct bmp_queue_entry *bmp_pull(struct bmp *bmp) |
6c29258c | 1118 | { |
ed18356f DL |
1119 | struct bmp_queue_entry *bqe; |
1120 | ||
1121 | bqe = bmp->queuepos; | |
1122 | if (!bqe) | |
1123 | return NULL; | |
1124 | ||
1125 | bmp->queuepos = bmp_qlist_next(&bmp->targets->updlist, bqe); | |
1126 | ||
1127 | bqe->refcount--; | |
1128 | if (!bqe->refcount) { | |
1129 | bmp_qhash_del(&bmp->targets->updhash, bqe); | |
1130 | bmp_qlist_del(&bmp->targets->updlist, bqe); | |
1131 | } | |
1132 | return bqe; | |
1133 | } | |
1134 | ||
1135 | static bool bmp_wrqueue(struct bmp *bmp, struct pullwr *pullwr) | |
1136 | { | |
1137 | struct bmp_queue_entry *bqe; | |
1138 | struct peer *peer; | |
a25ae82f | 1139 | struct bgp_dest *bn = NULL; |
ed18356f DL |
1140 | bool written = false; |
1141 | ||
1142 | bqe = bmp_pull(bmp); | |
1143 | if (!bqe) | |
1144 | return false; | |
1145 | ||
1146 | afi_t afi = bqe->afi; | |
1147 | safi_t safi = bqe->safi; | |
1148 | ||
1149 | switch (bmp->afistate[afi][safi]) { | |
1150 | case BMP_AFI_INACTIVE: | |
1151 | case BMP_AFI_NEEDSYNC: | |
1152 | goto out; | |
1153 | case BMP_AFI_SYNC: | |
1154 | if (prefix_cmp(&bqe->p, &bmp->syncpos) <= 0) | |
1155 | /* currently syncing but have already passed this | |
1156 | * prefix => send it. */ | |
1157 | break; | |
1158 | ||
1159 | /* currently syncing & haven't reached this prefix yet | |
1160 | * => it'll be sent as part of the table sync, no need here */ | |
1161 | goto out; | |
1162 | case BMP_AFI_LIVE: | |
1163 | break; | |
1164 | } | |
1165 | ||
1166 | peer = QOBJ_GET_TYPESAFE(bqe->peerid, peer); | |
1167 | if (!peer) { | |
1168 | zlog_info("bmp: skipping queued item for deleted peer"); | |
1169 | goto out; | |
1170 | } | |
feb17238 | 1171 | if (!peer_established(peer)) |
ed18356f DL |
1172 | goto out; |
1173 | ||
e7e1561f | 1174 | bool is_vpn = (bqe->afi == AFI_L2VPN && bqe->safi == SAFI_EVPN) || |
1175 | (bqe->safi == SAFI_MPLS_VPN); | |
1176 | ||
1177 | struct prefix_rd *prd = is_vpn ? &bqe->rd : NULL; | |
59d6b4d6 DA |
1178 | bn = bgp_safi_node_lookup(bmp->targets->bgp->rib[afi][safi], safi, |
1179 | &bqe->p, prd); | |
e7e1561f | 1180 | |
ed18356f DL |
1181 | |
1182 | if (bmp->targets->afimon[afi][safi] & BMP_MON_POSTPOLICY) { | |
1183 | struct bgp_path_info *bpi; | |
1184 | ||
87102aa0 | 1185 | for (bpi = bn ? bgp_dest_get_bgp_path_info(bn) : NULL; bpi; |
1186 | bpi = bpi->next) { | |
ed18356f DL |
1187 | if (!CHECK_FLAG(bpi->flags, BGP_PATH_VALID)) |
1188 | continue; | |
1189 | if (bpi->peer == peer) | |
1190 | break; | |
1191 | } | |
1192 | ||
87102aa0 | 1193 | bmp_monitor(bmp, peer, BMP_PEER_FLAG_L, &bqe->p, prd, |
ed18356f DL |
1194 | bpi ? bpi->attr : NULL, afi, safi, |
1195 | bpi ? bpi->uptime : monotime(NULL)); | |
1196 | written = true; | |
1197 | } | |
1198 | ||
1199 | if (bmp->targets->afimon[afi][safi] & BMP_MON_PREPOLICY) { | |
1200 | struct bgp_adj_in *adjin; | |
1201 | ||
1202 | for (adjin = bn ? bn->adj_in : NULL; adjin; | |
1203 | adjin = adjin->next) { | |
1204 | if (adjin->peer == peer) | |
1205 | break; | |
1206 | } | |
4ab8edec | 1207 | bmp_monitor(bmp, peer, 0, &bqe->p, prd, |
ed18356f DL |
1208 | adjin ? adjin->attr : NULL, afi, safi, |
1209 | adjin ? adjin->uptime : monotime(NULL)); | |
1210 | written = true; | |
1211 | } | |
1212 | ||
1213 | out: | |
1214 | if (!bqe->refcount) | |
1215 | XFREE(MTYPE_BMP_QUEUE, bqe); | |
a25ae82f DA |
1216 | |
1217 | if (bn) | |
1218 | bgp_dest_unlock_node(bn); | |
1219 | ||
ed18356f DL |
1220 | return written; |
1221 | } | |
1222 | ||
1223 | static void bmp_wrfill(struct bmp *bmp, struct pullwr *pullwr) | |
1224 | { | |
1225 | switch(bmp->state) { | |
1226 | case BMP_PeerUp: | |
1227 | bmp_send_peerup(bmp); | |
1228 | bmp->state = BMP_Run; | |
1229 | break; | |
1230 | ||
1231 | case BMP_Run: | |
1232 | if (bmp_wrmirror(bmp, pullwr)) | |
1233 | break; | |
1234 | if (bmp_wrqueue(bmp, pullwr)) | |
1235 | break; | |
1236 | if (bmp_wrsync(bmp, pullwr)) | |
1237 | break; | |
1238 | break; | |
1239 | } | |
1240 | } | |
1241 | ||
1242 | static void bmp_wrerr(struct bmp *bmp, struct pullwr *pullwr, bool eof) | |
1243 | { | |
1244 | if (eof) | |
1245 | zlog_info("bmp[%s] disconnected", bmp->remote); | |
1246 | else | |
1247 | flog_warn(EC_LIB_SYSTEM_CALL, "bmp[%s] connection error: %s", | |
1248 | bmp->remote, strerror(errno)); | |
1249 | ||
1250 | bmp_close(bmp); | |
1251 | bmp_free(bmp); | |
1252 | } | |
1253 | ||
9bcb3eef DS |
1254 | static void bmp_process_one(struct bmp_targets *bt, struct bgp *bgp, afi_t afi, |
1255 | safi_t safi, struct bgp_dest *bn, struct peer *peer) | |
ed18356f DL |
1256 | { |
1257 | struct bmp *bmp; | |
1258 | struct bmp_queue_entry *bqe, bqeref; | |
1259 | size_t refcount; | |
ed18356f DL |
1260 | |
1261 | refcount = bmp_session_count(&bt->sessions); | |
1262 | if (refcount == 0) | |
1263 | return; | |
1264 | ||
1265 | memset(&bqeref, 0, sizeof(bqeref)); | |
9bcb3eef | 1266 | prefix_copy(&bqeref.p, bgp_dest_get_prefix(bn)); |
ed18356f DL |
1267 | bqeref.peerid = peer->qobj_node.nid; |
1268 | bqeref.afi = afi; | |
1269 | bqeref.safi = safi; | |
1270 | ||
5dde2965 FD |
1271 | if ((afi == AFI_L2VPN && safi == SAFI_EVPN && bn->pdest) || |
1272 | (safi == SAFI_MPLS_VPN)) | |
87102aa0 | 1273 | prefix_copy(&bqeref.rd, |
1274 | (struct prefix_rd *)bgp_dest_get_prefix(bn->pdest)); | |
1275 | ||
ed18356f DL |
1276 | bqe = bmp_qhash_find(&bt->updhash, &bqeref); |
1277 | if (bqe) { | |
1278 | if (bqe->refcount >= refcount) | |
1279 | /* nothing to do here */ | |
1280 | return; | |
1281 | ||
1282 | bmp_qlist_del(&bt->updlist, bqe); | |
1283 | } else { | |
1284 | bqe = XMALLOC(MTYPE_BMP_QUEUE, sizeof(*bqe)); | |
1285 | memcpy(bqe, &bqeref, sizeof(*bqe)); | |
1286 | ||
1287 | bmp_qhash_add(&bt->updhash, bqe); | |
1288 | } | |
1289 | ||
1290 | bqe->refcount = refcount; | |
1291 | bmp_qlist_add_tail(&bt->updlist, bqe); | |
1292 | ||
1293 | frr_each (bmp_session, &bt->sessions, bmp) | |
1294 | if (!bmp->queuepos) | |
1295 | bmp->queuepos = bqe; | |
1296 | } | |
1297 | ||
1298 | static int bmp_process(struct bgp *bgp, afi_t afi, safi_t safi, | |
9bcb3eef | 1299 | struct bgp_dest *bn, struct peer *peer, bool withdraw) |
ed18356f DL |
1300 | { |
1301 | struct bmp_bgp *bmpbgp = bmp_bgp_find(peer->bgp); | |
1302 | struct bmp_targets *bt; | |
1303 | struct bmp *bmp; | |
1304 | ||
e0302d7e QY |
1305 | if (frrtrace_enabled(frr_bgp, bmp_process)) { |
1306 | char pfxprint[PREFIX2STR_BUFFER]; | |
1307 | ||
1308 | prefix2str(&bn->p, pfxprint, sizeof(pfxprint)); | |
1309 | frrtrace(5, frr_bgp, bmp_process, peer, pfxprint, afi, safi, | |
1310 | withdraw); | |
1311 | } | |
1312 | ||
ed18356f DL |
1313 | if (!bmpbgp) |
1314 | return 0; | |
1315 | ||
1316 | frr_each(bmp_targets, &bmpbgp->targets, bt) { | |
1317 | if (!bt->afimon[afi][safi]) | |
1318 | continue; | |
1319 | ||
1320 | bmp_process_one(bt, bgp, afi, safi, bn, peer); | |
1321 | ||
1322 | frr_each(bmp_session, &bt->sessions, bmp) { | |
1323 | pullwr_bump(bmp->pullwr); | |
1324 | } | |
1325 | } | |
1326 | return 0; | |
1327 | } | |
1328 | ||
1329 | static void bmp_stat_put_u32(struct stream *s, size_t *cnt, uint16_t type, | |
1330 | uint32_t value) | |
1331 | { | |
1332 | stream_putw(s, type); | |
1333 | stream_putw(s, 4); | |
1334 | stream_putl(s, value); | |
1335 | (*cnt)++; | |
1336 | } | |
1337 | ||
e6685141 | 1338 | static void bmp_stats(struct event *thread) |
ed18356f | 1339 | { |
e16d030c | 1340 | struct bmp_targets *bt = EVENT_ARG(thread); |
ed18356f DL |
1341 | struct stream *s; |
1342 | struct peer *peer; | |
1343 | struct listnode *node; | |
1344 | struct timeval tv; | |
1345 | ||
1346 | if (bt->stat_msec) | |
907a2395 DS |
1347 | event_add_timer_msec(bm->master, bmp_stats, bt, bt->stat_msec, |
1348 | &bt->t_stats); | |
ed18356f DL |
1349 | |
1350 | gettimeofday(&tv, NULL); | |
1351 | ||
1352 | /* Walk down all peers */ | |
1353 | for (ALL_LIST_ELEMENTS_RO(bt->bgp->peer, node, peer)) { | |
1354 | size_t count = 0, count_pos, len; | |
1355 | ||
feb17238 | 1356 | if (!peer_established(peer)) |
ed18356f DL |
1357 | continue; |
1358 | ||
1359 | s = stream_new(BGP_MAX_PACKET_SIZE); | |
1360 | bmp_common_hdr(s, BMP_VERSION_3, BMP_TYPE_STATISTICS_REPORT); | |
1361 | bmp_per_peer_hdr(s, peer, 0, &tv); | |
1362 | ||
1363 | count_pos = stream_get_endp(s); | |
1364 | stream_putl(s, 0); | |
1365 | ||
1366 | bmp_stat_put_u32(s, &count, BMP_STATS_PFX_REJECTED, | |
1367 | peer->stat_pfx_filter); | |
1368 | bmp_stat_put_u32(s, &count, BMP_STATS_UPD_LOOP_ASPATH, | |
1369 | peer->stat_pfx_aspath_loop); | |
1370 | bmp_stat_put_u32(s, &count, BMP_STATS_UPD_LOOP_ORIGINATOR, | |
1371 | peer->stat_pfx_originator_loop); | |
1372 | bmp_stat_put_u32(s, &count, BMP_STATS_UPD_LOOP_CLUSTER, | |
1373 | peer->stat_pfx_cluster_loop); | |
1374 | bmp_stat_put_u32(s, &count, BMP_STATS_PFX_DUP_WITHDRAW, | |
1375 | peer->stat_pfx_dup_withdraw); | |
1376 | bmp_stat_put_u32(s, &count, BMP_STATS_UPD_7606_WITHDRAW, | |
1377 | peer->stat_upd_7606); | |
1378 | bmp_stat_put_u32(s, &count, BMP_STATS_FRR_NH_INVALID, | |
1379 | peer->stat_pfx_nh_invalid); | |
1380 | ||
1381 | stream_putl_at(s, count_pos, count); | |
1382 | ||
1383 | len = stream_get_endp(s); | |
1384 | stream_putl_at(s, BMP_LENGTH_POS, len); | |
1385 | ||
1386 | bmp_send_all(bt->bmpbgp, s); | |
1387 | } | |
ed18356f DL |
1388 | } |
1389 | ||
8252b477 | 1390 | /* read from the BMP socket to detect session termination */ |
e6685141 | 1391 | static void bmp_read(struct event *t) |
8252b477 | 1392 | { |
e16d030c | 1393 | struct bmp *bmp = EVENT_ARG(t); |
8252b477 AL |
1394 | char buf[1024]; |
1395 | ssize_t n; | |
1396 | ||
1397 | bmp->t_read = NULL; | |
1398 | ||
1399 | n = read(bmp->socket, buf, sizeof(buf)); | |
1400 | if (n >= 1) { | |
1401 | zlog_info("bmp[%s]: unexpectedly received %zu bytes", bmp->remote, n); | |
1402 | } else if (n == 0) { | |
1403 | /* the TCP session was terminated by the far end */ | |
1404 | bmp_wrerr(bmp, NULL, true); | |
cc9f21da | 1405 | return; |
8252b477 AL |
1406 | } else if (!(errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR)) { |
1407 | /* the TCP session experienced a fatal error, likely a timeout */ | |
1408 | bmp_wrerr(bmp, NULL, false); | |
cc9f21da | 1409 | return; |
8252b477 AL |
1410 | } |
1411 | ||
907a2395 | 1412 | event_add_read(bm->master, bmp_read, bmp, bmp->socket, &bmp->t_read); |
8252b477 AL |
1413 | } |
1414 | ||
ed18356f DL |
1415 | static struct bmp *bmp_open(struct bmp_targets *bt, int bmp_sock) |
1416 | { | |
1417 | union sockunion su, *sumem; | |
1418 | struct prefix p; | |
1419 | int on = 1; | |
1420 | struct access_list *acl = NULL; | |
1421 | enum filter_type ret; | |
1422 | char buf[SU_ADDRSTRLEN]; | |
1423 | struct bmp *bmp; | |
1424 | ||
1425 | sumem = sockunion_getpeername(bmp_sock); | |
1426 | if (!sumem) { | |
1427 | close(bmp_sock); | |
1428 | return NULL; | |
1429 | } | |
1430 | memcpy(&su, sumem, sizeof(su)); | |
1431 | sockunion_free(sumem); | |
1432 | ||
1433 | set_nonblocking(bmp_sock); | |
1434 | set_cloexec(bmp_sock); | |
ed18356f | 1435 | |
0154d8ce DS |
1436 | if (!sockunion2hostprefix(&su, &p)) { |
1437 | close(bmp_sock); | |
1438 | return NULL; | |
1439 | } | |
ed18356f DL |
1440 | |
1441 | acl = NULL; | |
1442 | switch (p.family) { | |
1443 | case AF_INET: | |
1444 | acl = access_list_lookup(AFI_IP, bt->acl_name); | |
1445 | break; | |
1446 | case AF_INET6: | |
1447 | acl = access_list_lookup(AFI_IP6, bt->acl6_name); | |
1448 | break; | |
1449 | default: | |
1450 | break; | |
1451 | } | |
1452 | ||
1453 | ret = FILTER_PERMIT; | |
1454 | if (acl) { | |
1455 | ret = access_list_apply(acl, &p); | |
1456 | } | |
1457 | ||
1458 | sockunion2str(&su, buf, SU_ADDRSTRLEN); | |
1459 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), ":%u", | |
1460 | su.sa.sa_family == AF_INET | |
1461 | ? ntohs(su.sin.sin_port) | |
1462 | : ntohs(su.sin6.sin6_port)); | |
1463 | ||
1464 | if (ret == FILTER_DENY) { | |
1465 | bt->cnt_aclrefused++; | |
1466 | zlog_info("bmp[%s] connection refused by access-list", buf); | |
1467 | close(bmp_sock); | |
1468 | return NULL; | |
1469 | } | |
1470 | bt->cnt_accept++; | |
1471 | ||
d38c6bb1 DS |
1472 | if (setsockopt(bmp_sock, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof(on)) < 0) |
1473 | flog_err(EC_LIB_SOCKET, "bmp: %d can't setsockopt SO_KEEPALIVE: %s(%d)", | |
1474 | bmp_sock, safe_strerror(errno), errno); | |
1475 | if (setsockopt(bmp_sock, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on)) < 0) | |
1476 | flog_err(EC_LIB_SOCKET, "bmp: %d can't setsockopt TCP_NODELAY: %s(%d)", | |
1477 | bmp_sock, safe_strerror(errno), errno); | |
ed18356f DL |
1478 | |
1479 | zlog_info("bmp[%s] connection established", buf); | |
1480 | ||
1481 | /* Allocate new BMP structure and set up default values. */ | |
1482 | bmp = bmp_new(bt, bmp_sock); | |
1483 | strlcpy(bmp->remote, buf, sizeof(bmp->remote)); | |
1484 | ||
1485 | bmp->state = BMP_PeerUp; | |
1486 | bmp->pullwr = pullwr_new(bm->master, bmp_sock, bmp, bmp_wrfill, | |
1487 | bmp_wrerr); | |
907a2395 | 1488 | event_add_read(bm->master, bmp_read, bmp, bmp_sock, &bmp->t_read); |
ed18356f DL |
1489 | bmp_send_initiation(bmp); |
1490 | ||
1491 | return bmp; | |
1492 | } | |
1493 | ||
1494 | /* Accept BMP connection. */ | |
e6685141 | 1495 | static void bmp_accept(struct event *thread) |
ed18356f DL |
1496 | { |
1497 | union sockunion su; | |
e16d030c | 1498 | struct bmp_listener *bl = EVENT_ARG(thread); |
ed18356f DL |
1499 | int bmp_sock; |
1500 | ||
1501 | /* We continue hearing BMP socket. */ | |
907a2395 | 1502 | event_add_read(bm->master, bmp_accept, bl, bl->sock, &bl->t_accept); |
ed18356f DL |
1503 | |
1504 | memset(&su, 0, sizeof(union sockunion)); | |
1505 | ||
1506 | /* We can handle IPv4 or IPv6 socket. */ | |
1507 | bmp_sock = sockunion_accept(bl->sock, &su); | |
1508 | if (bmp_sock < 0) { | |
63efca0e | 1509 | zlog_info("bmp: accept_sock failed: %s", safe_strerror(errno)); |
cc9f21da | 1510 | return; |
ed18356f DL |
1511 | } |
1512 | bmp_open(bl->targets, bmp_sock); | |
ed18356f DL |
1513 | } |
1514 | ||
1515 | static void bmp_close(struct bmp *bmp) | |
1516 | { | |
1517 | struct bmp_queue_entry *bqe; | |
1518 | struct bmp_mirrorq *bmq; | |
1519 | ||
e16d030c | 1520 | EVENT_OFF(bmp->t_read); |
8252b477 | 1521 | |
ed18356f DL |
1522 | if (bmp->active) |
1523 | bmp_active_disconnected(bmp->active); | |
1524 | ||
1525 | while ((bmq = bmp_pull_mirror(bmp))) | |
1526 | if (!bmq->refcount) | |
1527 | XFREE(MTYPE_BMP_MIRRORQ, bmq); | |
1528 | while ((bqe = bmp_pull(bmp))) | |
1529 | if (!bqe->refcount) | |
1530 | XFREE(MTYPE_BMP_QUEUE, bqe); | |
1531 | ||
e16d030c | 1532 | EVENT_OFF(bmp->t_read); |
ed18356f DL |
1533 | pullwr_del(bmp->pullwr); |
1534 | close(bmp->socket); | |
1535 | } | |
1536 | ||
1537 | static struct bmp_bgp *bmp_bgp_find(struct bgp *bgp) | |
1538 | { | |
1539 | struct bmp_bgp dummy = { .bgp = bgp }; | |
1540 | return bmp_bgph_find(&bmp_bgph, &dummy); | |
1541 | } | |
1542 | ||
1543 | static struct bmp_bgp *bmp_bgp_get(struct bgp *bgp) | |
1544 | { | |
1545 | struct bmp_bgp *bmpbgp; | |
1546 | ||
1547 | bmpbgp = bmp_bgp_find(bgp); | |
1548 | if (bmpbgp) | |
1549 | return bmpbgp; | |
1550 | ||
1551 | bmpbgp = XCALLOC(MTYPE_BMP, sizeof(*bmpbgp)); | |
1552 | bmpbgp->bgp = bgp; | |
1553 | bmpbgp->mirror_qsizelimit = ~0UL; | |
1554 | bmp_mirrorq_init(&bmpbgp->mirrorq); | |
1555 | bmp_bgph_add(&bmp_bgph, bmpbgp); | |
1556 | ||
1557 | return bmpbgp; | |
1558 | } | |
1559 | ||
1560 | static void bmp_bgp_put(struct bmp_bgp *bmpbgp) | |
1561 | { | |
1562 | struct bmp_targets *bt; | |
5cb3a153 | 1563 | struct bmp_listener *bl; |
ed18356f DL |
1564 | |
1565 | bmp_bgph_del(&bmp_bgph, bmpbgp); | |
1566 | ||
5cb3a153 DA |
1567 | frr_each_safe (bmp_targets, &bmpbgp->targets, bt) { |
1568 | frr_each_safe (bmp_listeners, &bt->listeners, bl) | |
1569 | bmp_listener_put(bl); | |
1570 | ||
ed18356f | 1571 | bmp_targets_put(bt); |
5cb3a153 | 1572 | } |
ed18356f DL |
1573 | |
1574 | bmp_mirrorq_fini(&bmpbgp->mirrorq); | |
1575 | XFREE(MTYPE_BMP, bmpbgp); | |
1576 | } | |
1577 | ||
1578 | static int bmp_bgp_del(struct bgp *bgp) | |
1579 | { | |
1580 | struct bmp_bgp *bmpbgp = bmp_bgp_find(bgp); | |
1581 | ||
1582 | if (bmpbgp) | |
1583 | bmp_bgp_put(bmpbgp); | |
1584 | return 0; | |
1585 | } | |
1586 | ||
1587 | static struct bmp_bgp_peer *bmp_bgp_peer_find(uint64_t peerid) | |
1588 | { | |
1589 | struct bmp_bgp_peer dummy = { .peerid = peerid }; | |
1590 | return bmp_peerh_find(&bmp_peerh, &dummy); | |
1591 | } | |
1592 | ||
1593 | static struct bmp_bgp_peer *bmp_bgp_peer_get(struct peer *peer) | |
1594 | { | |
1595 | struct bmp_bgp_peer *bbpeer; | |
1596 | ||
1597 | bbpeer = bmp_bgp_peer_find(peer->qobj_node.nid); | |
1598 | if (bbpeer) | |
1599 | return bbpeer; | |
1600 | ||
1601 | bbpeer = XCALLOC(MTYPE_BMP_PEER, sizeof(*bbpeer)); | |
1602 | bbpeer->peerid = peer->qobj_node.nid; | |
1603 | bmp_peerh_add(&bmp_peerh, bbpeer); | |
1604 | ||
1605 | return bbpeer; | |
1606 | } | |
1607 | ||
1608 | static struct bmp_targets *bmp_targets_find1(struct bgp *bgp, const char *name) | |
1609 | { | |
1610 | struct bmp_bgp *bmpbgp = bmp_bgp_find(bgp); | |
1611 | struct bmp_targets dummy; | |
1612 | ||
1613 | if (!bmpbgp) | |
1614 | return NULL; | |
1615 | dummy.name = (char *)name; | |
1616 | return bmp_targets_find(&bmpbgp->targets, &dummy); | |
1617 | } | |
1618 | ||
1619 | static struct bmp_targets *bmp_targets_get(struct bgp *bgp, const char *name) | |
1620 | { | |
1621 | struct bmp_targets *bt; | |
1622 | ||
1623 | bt = bmp_targets_find1(bgp, name); | |
1624 | if (bt) | |
1625 | return bt; | |
1626 | ||
1627 | bt = XCALLOC(MTYPE_BMP_TARGETS, sizeof(*bt)); | |
1628 | bt->name = XSTRDUP(MTYPE_BMP_TARGETSNAME, name); | |
1629 | bt->bgp = bgp; | |
1630 | bt->bmpbgp = bmp_bgp_get(bgp); | |
1631 | bmp_session_init(&bt->sessions); | |
1632 | bmp_qhash_init(&bt->updhash); | |
1633 | bmp_qlist_init(&bt->updlist); | |
1634 | bmp_actives_init(&bt->actives); | |
1635 | bmp_listeners_init(&bt->listeners); | |
1636 | ||
1637 | QOBJ_REG(bt, bmp_targets); | |
1638 | bmp_targets_add(&bt->bmpbgp->targets, bt); | |
1639 | return bt; | |
1640 | } | |
1641 | ||
1642 | static void bmp_targets_put(struct bmp_targets *bt) | |
1643 | { | |
1644 | struct bmp *bmp; | |
1645 | struct bmp_active *ba; | |
1646 | ||
e16d030c | 1647 | EVENT_OFF(bt->t_stats); |
4008aa1a | 1648 | |
ed18356f DL |
1649 | frr_each_safe (bmp_actives, &bt->actives, ba) |
1650 | bmp_active_put(ba); | |
1651 | ||
1652 | frr_each_safe(bmp_session, &bt->sessions, bmp) { | |
1653 | bmp_close(bmp); | |
1654 | bmp_free(bmp); | |
1655 | } | |
1656 | ||
1657 | bmp_targets_del(&bt->bmpbgp->targets, bt); | |
1658 | QOBJ_UNREG(bt); | |
1659 | ||
1660 | bmp_listeners_fini(&bt->listeners); | |
1661 | bmp_actives_fini(&bt->actives); | |
1662 | bmp_qhash_fini(&bt->updhash); | |
1663 | bmp_qlist_fini(&bt->updlist); | |
1664 | ||
1665 | XFREE(MTYPE_BMP_ACLNAME, bt->acl_name); | |
1666 | XFREE(MTYPE_BMP_ACLNAME, bt->acl6_name); | |
1667 | bmp_session_fini(&bt->sessions); | |
1668 | ||
1669 | XFREE(MTYPE_BMP_TARGETSNAME, bt->name); | |
1670 | XFREE(MTYPE_BMP_TARGETS, bt); | |
1671 | } | |
1672 | ||
1673 | static struct bmp_listener *bmp_listener_find(struct bmp_targets *bt, | |
1674 | const union sockunion *su, | |
1675 | int port) | |
1676 | { | |
1677 | struct bmp_listener dummy; | |
1678 | dummy.addr = *su; | |
1679 | dummy.port = port; | |
1680 | return bmp_listeners_find(&bt->listeners, &dummy); | |
1681 | } | |
1682 | ||
1683 | static struct bmp_listener *bmp_listener_get(struct bmp_targets *bt, | |
1684 | const union sockunion *su, | |
1685 | int port) | |
1686 | { | |
1687 | struct bmp_listener *bl = bmp_listener_find(bt, su, port); | |
1688 | ||
1689 | if (bl) | |
1690 | return bl; | |
1691 | ||
1692 | bl = XCALLOC(MTYPE_BMP_LISTENER, sizeof(*bl)); | |
1693 | bl->targets = bt; | |
1694 | bl->addr = *su; | |
1695 | bl->port = port; | |
1696 | bl->sock = -1; | |
1697 | ||
1698 | bmp_listeners_add(&bt->listeners, bl); | |
1699 | return bl; | |
1700 | } | |
1701 | ||
ed18356f DL |
1702 | static void bmp_listener_start(struct bmp_listener *bl) |
1703 | { | |
1704 | int sock, ret; | |
1705 | ||
1706 | sock = socket(bl->addr.sa.sa_family, SOCK_STREAM, 0); | |
1707 | if (sock < 0) | |
1708 | return; | |
1709 | ||
1710 | sockopt_reuseaddr(sock); | |
1711 | sockopt_reuseport(sock); | |
1712 | sockopt_v6only(bl->addr.sa.sa_family, sock); | |
1713 | set_cloexec(sock); | |
1714 | ||
1715 | ret = sockunion_bind(sock, &bl->addr, bl->port, &bl->addr); | |
1716 | if (ret < 0) | |
1717 | goto out_sock; | |
1718 | ||
1719 | ret = listen(sock, 3); | |
1720 | if (ret < 0) | |
1721 | goto out_sock; | |
1722 | ||
1723 | bl->sock = sock; | |
907a2395 | 1724 | event_add_read(bm->master, bmp_accept, bl, sock, &bl->t_accept); |
ed18356f DL |
1725 | return; |
1726 | out_sock: | |
1727 | close(sock); | |
1728 | } | |
1729 | ||
1730 | static void bmp_listener_stop(struct bmp_listener *bl) | |
1731 | { | |
e16d030c | 1732 | EVENT_OFF(bl->t_accept); |
ed18356f DL |
1733 | |
1734 | if (bl->sock != -1) | |
1735 | close(bl->sock); | |
1736 | bl->sock = -1; | |
1737 | } | |
1738 | ||
1739 | static struct bmp_active *bmp_active_find(struct bmp_targets *bt, | |
1740 | const char *hostname, int port) | |
1741 | { | |
1742 | struct bmp_active dummy; | |
1743 | dummy.hostname = (char *)hostname; | |
1744 | dummy.port = port; | |
1745 | return bmp_actives_find(&bt->actives, &dummy); | |
1746 | } | |
1747 | ||
1748 | static struct bmp_active *bmp_active_get(struct bmp_targets *bt, | |
1749 | const char *hostname, int port) | |
1750 | { | |
1751 | struct bmp_active *ba; | |
1752 | ||
1753 | ba = bmp_active_find(bt, hostname, port); | |
1754 | if (ba) | |
1755 | return ba; | |
1756 | ||
1757 | ba = XCALLOC(MTYPE_BMP_ACTIVE, sizeof(*ba)); | |
1758 | ba->targets = bt; | |
1759 | ba->hostname = XSTRDUP(MTYPE_TMP, hostname); | |
1760 | ba->port = port; | |
1761 | ba->minretry = BMP_DFLT_MINRETRY; | |
1762 | ba->maxretry = BMP_DFLT_MAXRETRY; | |
1763 | ba->socket = -1; | |
1764 | ||
1765 | bmp_actives_add(&bt->actives, ba); | |
1766 | return ba; | |
1767 | } | |
1768 | ||
1769 | static void bmp_active_put(struct bmp_active *ba) | |
1770 | { | |
e16d030c DS |
1771 | EVENT_OFF(ba->t_timer); |
1772 | EVENT_OFF(ba->t_read); | |
1773 | EVENT_OFF(ba->t_write); | |
ed18356f DL |
1774 | |
1775 | bmp_actives_del(&ba->targets->actives, ba); | |
1776 | ||
1777 | if (ba->bmp) { | |
1778 | ba->bmp->active = NULL; | |
1779 | bmp_close(ba->bmp); | |
1780 | bmp_free(ba->bmp); | |
1781 | } | |
1782 | if (ba->socket != -1) | |
1783 | close(ba->socket); | |
1784 | ||
09f267ec | 1785 | XFREE(MTYPE_TMP, ba->ifsrc); |
ed18356f DL |
1786 | XFREE(MTYPE_TMP, ba->hostname); |
1787 | XFREE(MTYPE_BMP_ACTIVE, ba); | |
1788 | } | |
1789 | ||
1790 | static void bmp_active_setup(struct bmp_active *ba); | |
1791 | ||
1792 | static void bmp_active_connect(struct bmp_active *ba) | |
1793 | { | |
1794 | enum connect_result res; | |
09f267ec FD |
1795 | struct interface *ifp; |
1796 | vrf_id_t vrf_id = VRF_DEFAULT; | |
1797 | int res_bind; | |
ed18356f DL |
1798 | |
1799 | for (; ba->addrpos < ba->addrtotal; ba->addrpos++) { | |
09f267ec FD |
1800 | if (ba->ifsrc) { |
1801 | if (ba->targets && ba->targets->bgp) | |
1802 | vrf_id = ba->targets->bgp->vrf_id; | |
1803 | ||
1804 | /* find interface and related */ | |
1805 | /* address with same family */ | |
1806 | ifp = if_lookup_by_name(ba->ifsrc, vrf_id); | |
1807 | if (!ifp) { | |
1808 | zlog_warn("bmp[%s]: failed to find interface", | |
1809 | ba->ifsrc); | |
1810 | continue; | |
1811 | } | |
1812 | ||
1813 | if (bgp_update_address(ifp, &ba->addrs[ba->addrpos], | |
1814 | &ba->addrsrc)){ | |
1815 | zlog_warn("bmp[%s]: failed to find matching address", | |
1816 | ba->ifsrc); | |
1817 | continue; | |
1818 | } | |
ddf6338c DS |
1819 | zlog_info("bmp[%s]: selected source address : %pSU", |
1820 | ba->ifsrc, &ba->addrsrc); | |
09f267ec FD |
1821 | } |
1822 | ||
ed18356f DL |
1823 | ba->socket = sockunion_socket(&ba->addrs[ba->addrpos]); |
1824 | if (ba->socket < 0) { | |
1825 | zlog_warn("bmp[%s]: failed to create socket", | |
1826 | ba->hostname); | |
1827 | continue; | |
1828 | } | |
c258527b | 1829 | |
ed18356f | 1830 | set_nonblocking(ba->socket); |
09f267ec FD |
1831 | |
1832 | if (!sockunion_is_null(&ba->addrsrc)) { | |
1833 | res_bind = sockunion_bind(ba->socket, &ba->addrsrc, 0, | |
1834 | &ba->addrsrc); | |
1835 | if (res_bind < 0) { | |
09f267ec | 1836 | zlog_warn( |
ddf6338c DS |
1837 | "bmp[%s]: no bind currently to source address %pSU:%d", |
1838 | ba->hostname, &ba->addrsrc, ba->port); | |
09f267ec FD |
1839 | close(ba->socket); |
1840 | ba->socket = -1; | |
1841 | sockunion_init(&ba->addrsrc); | |
1842 | continue; | |
1843 | } | |
1844 | } | |
1845 | ||
1846 | ||
ed18356f DL |
1847 | res = sockunion_connect(ba->socket, &ba->addrs[ba->addrpos], |
1848 | htons(ba->port), 0); | |
1849 | switch (res) { | |
1850 | case connect_error: | |
ddf6338c DS |
1851 | zlog_warn("bmp[%s]: failed to connect to %pSU:%d", |
1852 | ba->hostname, &ba->addrs[ba->addrpos], | |
1853 | ba->port); | |
ed18356f DL |
1854 | close(ba->socket); |
1855 | ba->socket = -1; | |
09f267ec | 1856 | sockunion_init(&ba->addrsrc); |
ed18356f DL |
1857 | continue; |
1858 | case connect_success: | |
ddf6338c DS |
1859 | zlog_info("bmp[%s]: connected to %pSU:%d", |
1860 | ba->hostname, &ba->addrs[ba->addrpos], | |
1861 | ba->port); | |
ed18356f DL |
1862 | break; |
1863 | case connect_in_progress: | |
ddf6338c DS |
1864 | zlog_warn("bmp[%s]: connect in progress %pSU:%d", |
1865 | ba->hostname, &ba->addrs[ba->addrpos], | |
1866 | ba->port); | |
ed18356f DL |
1867 | bmp_active_setup(ba); |
1868 | return; | |
1869 | } | |
1870 | } | |
1871 | ||
1872 | /* exhausted all addresses */ | |
1873 | ba->curretry += ba->curretry / 2; | |
1874 | bmp_active_setup(ba); | |
1875 | } | |
1876 | ||
3286ca07 DL |
1877 | static void bmp_active_resolved(struct resolver_query *resq, const char *errstr, |
1878 | int numaddrs, union sockunion *addr) | |
ed18356f DL |
1879 | { |
1880 | struct bmp_active *ba = container_of(resq, struct bmp_active, resq); | |
1881 | unsigned i; | |
1882 | ||
1883 | if (numaddrs <= 0) { | |
3286ca07 DL |
1884 | zlog_warn("bmp[%s]: hostname resolution failed: %s", |
1885 | ba->hostname, errstr); | |
1886 | ba->last_err = errstr; | |
125dc952 | 1887 | ba->curretry += ba->curretry / 2; |
a3d04c32 | 1888 | ba->addrpos = 0; |
125dc952 DL |
1889 | ba->addrtotal = 0; |
1890 | bmp_active_setup(ba); | |
1891 | return; | |
a3d04c32 | 1892 | } |
ed18356f | 1893 | |
125dc952 DL |
1894 | if (numaddrs > (int)array_size(ba->addrs)) |
1895 | numaddrs = array_size(ba->addrs); | |
1896 | ||
1897 | ba->addrpos = 0; | |
1898 | ba->addrtotal = numaddrs; | |
1899 | for (i = 0; i < ba->addrtotal; i++) | |
1900 | memcpy(&ba->addrs[i], &addr[i], sizeof(ba->addrs[0])); | |
1901 | ||
ed18356f DL |
1902 | bmp_active_connect(ba); |
1903 | } | |
1904 | ||
e6685141 | 1905 | static void bmp_active_thread(struct event *t) |
ed18356f | 1906 | { |
e16d030c | 1907 | struct bmp_active *ba = EVENT_ARG(t); |
ed18356f DL |
1908 | socklen_t slen; |
1909 | int status, ret; | |
c742573b | 1910 | vrf_id_t vrf_id; |
ed18356f DL |
1911 | |
1912 | /* all 3 end up here, though only timer or read+write are active | |
1913 | * at a time */ | |
e16d030c DS |
1914 | EVENT_OFF(ba->t_timer); |
1915 | EVENT_OFF(ba->t_read); | |
1916 | EVENT_OFF(ba->t_write); | |
ed18356f | 1917 | |
3286ca07 DL |
1918 | ba->last_err = NULL; |
1919 | ||
ed18356f | 1920 | if (ba->socket == -1) { |
c742573b PG |
1921 | /* get vrf_id */ |
1922 | if (!ba->targets || !ba->targets->bgp) | |
1923 | vrf_id = VRF_DEFAULT; | |
1924 | else | |
1925 | vrf_id = ba->targets->bgp->vrf_id; | |
1926 | resolver_resolve(&ba->resq, AF_UNSPEC, vrf_id, ba->hostname, | |
ed18356f | 1927 | bmp_active_resolved); |
cc9f21da | 1928 | return; |
ed18356f DL |
1929 | } |
1930 | ||
1931 | slen = sizeof(status); | |
1932 | ret = getsockopt(ba->socket, SOL_SOCKET, SO_ERROR, (void *)&status, | |
1933 | &slen); | |
1934 | ||
ed18356f | 1935 | if (ret < 0 || status != 0) { |
3286ca07 | 1936 | ba->last_err = strerror(status); |
47e12884 DA |
1937 | zlog_warn("bmp[%s]: failed to connect to %pSU:%d: %s", |
1938 | ba->hostname, &ba->addrs[ba->addrpos], ba->port, | |
1939 | ba->last_err); | |
ed18356f DL |
1940 | goto out_next; |
1941 | } | |
1942 | ||
47e12884 DA |
1943 | zlog_warn("bmp[%s]: outbound connection to %pSU:%d", ba->hostname, |
1944 | &ba->addrs[ba->addrpos], ba->port); | |
ed18356f DL |
1945 | |
1946 | ba->bmp = bmp_open(ba->targets, ba->socket); | |
1947 | if (!ba->bmp) | |
1948 | goto out_next; | |
1949 | ||
1950 | ba->bmp->active = ba; | |
1951 | ba->socket = -1; | |
1952 | ba->curretry = ba->minretry; | |
cc9f21da | 1953 | return; |
ed18356f DL |
1954 | |
1955 | out_next: | |
1956 | close(ba->socket); | |
1957 | ba->socket = -1; | |
1958 | ba->addrpos++; | |
1959 | bmp_active_connect(ba); | |
ed18356f DL |
1960 | } |
1961 | ||
1962 | static void bmp_active_disconnected(struct bmp_active *ba) | |
1963 | { | |
1964 | ba->bmp = NULL; | |
1965 | bmp_active_setup(ba); | |
1966 | } | |
1967 | ||
1968 | static void bmp_active_setup(struct bmp_active *ba) | |
1969 | { | |
e16d030c DS |
1970 | EVENT_OFF(ba->t_timer); |
1971 | EVENT_OFF(ba->t_read); | |
1972 | EVENT_OFF(ba->t_write); | |
ed18356f DL |
1973 | |
1974 | if (ba->bmp) | |
1975 | return; | |
1976 | if (ba->resq.callback) | |
1977 | return; | |
1978 | ||
1979 | if (ba->curretry > ba->maxretry) | |
1980 | ba->curretry = ba->maxretry; | |
1981 | ||
1982 | if (ba->socket == -1) | |
907a2395 DS |
1983 | event_add_timer_msec(bm->master, bmp_active_thread, ba, |
1984 | ba->curretry, &ba->t_timer); | |
ed18356f | 1985 | else { |
907a2395 DS |
1986 | event_add_read(bm->master, bmp_active_thread, ba, ba->socket, |
1987 | &ba->t_read); | |
1988 | event_add_write(bm->master, bmp_active_thread, ba, ba->socket, | |
ed18356f DL |
1989 | &ba->t_write); |
1990 | } | |
1991 | } | |
1992 | ||
62b346ee | 1993 | static struct cmd_node bmp_node = { |
f4b8291f | 1994 | .name = "bmp", |
62b346ee | 1995 | .node = BMP_NODE, |
24389580 | 1996 | .parent_node = BGP_NODE, |
62b346ee DL |
1997 | .prompt = "%s(config-bgp-bmp)# " |
1998 | }; | |
ed18356f | 1999 | |
bbd747df DA |
2000 | static void bmp_targets_autocomplete(vector comps, struct cmd_token *token) |
2001 | { | |
2002 | struct bgp *bgp; | |
2003 | struct bmp_targets *target; | |
2004 | struct listnode *node; | |
2005 | ||
2006 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp)) { | |
2007 | struct bmp_bgp *bmpbgp = bmp_bgp_find(bgp); | |
2008 | ||
2009 | if (!bmpbgp) | |
2010 | continue; | |
2011 | ||
2012 | frr_each_safe (bmp_targets, &bmpbgp->targets, target) | |
2013 | vector_set(comps, | |
2014 | XSTRDUP(MTYPE_COMPLETION, target->name)); | |
2015 | } | |
2016 | } | |
2017 | ||
2018 | static const struct cmd_variable_handler bmp_targets_var_handlers[] = { | |
2019 | {.tokenname = "BMPTARGETS", .completions = bmp_targets_autocomplete}, | |
2020 | {.completions = NULL}}; | |
2021 | ||
ed18356f DL |
2022 | #define BMP_STR "BGP Monitoring Protocol\n" |
2023 | ||
33a9e196 | 2024 | #include "bgpd/bgp_bmp_clippy.c" |
ed18356f DL |
2025 | |
2026 | DEFPY_NOSH(bmp_targets_main, | |
2027 | bmp_targets_cmd, | |
2028 | "bmp targets BMPTARGETS", | |
2029 | BMP_STR | |
2030 | "Create BMP target group\n" | |
2031 | "Name of the BMP target group\n") | |
2032 | { | |
2033 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
2034 | struct bmp_targets *bt; | |
2035 | ||
2036 | bt = bmp_targets_get(bgp, bmptargets); | |
2037 | ||
2038 | VTY_PUSH_CONTEXT_SUB(BMP_NODE, bt); | |
2039 | return CMD_SUCCESS; | |
2040 | } | |
2041 | ||
2042 | DEFPY(no_bmp_targets_main, | |
2043 | no_bmp_targets_cmd, | |
2044 | "no bmp targets BMPTARGETS", | |
2045 | NO_STR | |
2046 | BMP_STR | |
2047 | "Delete BMP target group\n" | |
2048 | "Name of the BMP target group\n") | |
2049 | { | |
2050 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
2051 | struct bmp_targets *bt; | |
2052 | ||
2053 | bt = bmp_targets_find1(bgp, bmptargets); | |
2054 | if (!bt) { | |
2055 | vty_out(vty, "%% BMP target group not found\n"); | |
2056 | return CMD_WARNING; | |
2057 | } | |
2058 | bmp_targets_put(bt); | |
2059 | return CMD_SUCCESS; | |
2060 | } | |
2061 | ||
2062 | DEFPY(bmp_listener_main, | |
2063 | bmp_listener_cmd, | |
2064 | "bmp listener <X:X::X:X|A.B.C.D> port (1-65535)", | |
2065 | BMP_STR | |
2066 | "Listen for inbound BMP connections\n" | |
2067 | "IPv6 address to listen on\n" | |
2068 | "IPv4 address to listen on\n" | |
2069 | "TCP Port number\n" | |
2070 | "TCP Port number\n") | |
2071 | { | |
2072 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2073 | struct bmp_listener *bl; | |
2074 | ||
2075 | bl = bmp_listener_get(bt, listener, port); | |
2076 | if (bl->sock == -1) | |
2077 | bmp_listener_start(bl); | |
2078 | ||
2079 | return CMD_SUCCESS; | |
2080 | } | |
2081 | ||
2082 | DEFPY(no_bmp_listener_main, | |
2083 | no_bmp_listener_cmd, | |
2084 | "no bmp listener <X:X::X:X|A.B.C.D> port (1-65535)", | |
2085 | NO_STR | |
2086 | BMP_STR | |
2087 | "Create BMP listener\n" | |
2088 | "IPv6 address to listen on\n" | |
2089 | "IPv4 address to listen on\n" | |
2090 | "TCP Port number\n" | |
2091 | "TCP Port number\n") | |
2092 | { | |
2093 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2094 | struct bmp_listener *bl; | |
2095 | ||
2096 | bl = bmp_listener_find(bt, listener, port); | |
2097 | if (!bl) { | |
2098 | vty_out(vty, "%% BMP listener not found\n"); | |
2099 | return CMD_WARNING; | |
2100 | } | |
2101 | bmp_listener_stop(bl); | |
2102 | bmp_listener_put(bl); | |
2103 | return CMD_SUCCESS; | |
2104 | } | |
2105 | ||
2106 | DEFPY(bmp_connect, | |
2107 | bmp_connect_cmd, | |
09f267ec | 2108 | "[no] bmp connect HOSTNAME port (1-65535) {min-retry (100-86400000)|max-retry (100-86400000)} [source-interface <WORD$srcif>]", |
ed18356f DL |
2109 | NO_STR |
2110 | BMP_STR | |
2111 | "Actively establish connection to monitoring station\n" | |
2112 | "Monitoring station hostname or address\n" | |
2113 | "TCP port\n" | |
2114 | "TCP port\n" | |
2115 | "Minimum connection retry interval\n" | |
2116 | "Minimum connection retry interval (milliseconds)\n" | |
2117 | "Maximum connection retry interval\n" | |
09f267ec FD |
2118 | "Maximum connection retry interval (milliseconds)\n" |
2119 | "Source interface to use\n" | |
2120 | "Define an interface\n") | |
ed18356f DL |
2121 | { |
2122 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2123 | struct bmp_active *ba; | |
2124 | ||
2125 | if (no) { | |
2126 | ba = bmp_active_find(bt, hostname, port); | |
2127 | if (!ba) { | |
2128 | vty_out(vty, "%% No such active connection found\n"); | |
2129 | return CMD_WARNING; | |
2130 | } | |
09f267ec FD |
2131 | /* connection deletion need same hostname port and interface */ |
2132 | if (ba->ifsrc || srcif) | |
2133 | if ((!ba->ifsrc) || (!srcif) || | |
2134 | !strcmp(ba->ifsrc, srcif)) { | |
2135 | vty_out(vty, | |
2136 | "%% No such active connection found\n"); | |
2137 | return CMD_WARNING; | |
2138 | } | |
ed18356f DL |
2139 | bmp_active_put(ba); |
2140 | return CMD_SUCCESS; | |
2141 | } | |
2142 | ||
2143 | ba = bmp_active_get(bt, hostname, port); | |
09f267ec FD |
2144 | if (srcif) |
2145 | ba->ifsrc = XSTRDUP(MTYPE_TMP, srcif); | |
ed18356f DL |
2146 | if (min_retry_str) |
2147 | ba->minretry = min_retry; | |
2148 | if (max_retry_str) | |
2149 | ba->maxretry = max_retry; | |
2150 | ba->curretry = ba->minretry; | |
2151 | bmp_active_setup(ba); | |
2152 | ||
2153 | return CMD_SUCCESS; | |
2154 | } | |
2155 | ||
2156 | DEFPY(bmp_acl, | |
2157 | bmp_acl_cmd, | |
5c757689 | 2158 | "[no] <ip|ipv6>$af access-list ACCESSLIST_NAME$access_list", |
ed18356f DL |
2159 | NO_STR |
2160 | IP_STR | |
2161 | IPV6_STR | |
2162 | "Access list to restrict BMP sessions\n" | |
2163 | "Access list name\n") | |
2164 | { | |
2165 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2166 | char **what; | |
2167 | ||
2168 | if (no) | |
2169 | access_list = NULL; | |
2170 | if (!strcmp(af, "ipv6")) | |
2171 | what = &bt->acl6_name; | |
2172 | else | |
2173 | what = &bt->acl_name; | |
2174 | ||
2175 | XFREE(MTYPE_BMP_ACLNAME, *what); | |
2176 | if (access_list) | |
2177 | *what = XSTRDUP(MTYPE_BMP_ACLNAME, access_list); | |
2178 | ||
2179 | return CMD_SUCCESS; | |
2180 | } | |
2181 | ||
2182 | DEFPY(bmp_stats_cfg, | |
2183 | bmp_stats_cmd, | |
2184 | "[no] bmp stats [interval (100-86400000)]", | |
2185 | NO_STR | |
2186 | BMP_STR | |
2187 | "Send BMP statistics messages\n" | |
2188 | "Specify BMP stats interval\n" | |
2189 | "Interval (milliseconds) to send BMP Stats in\n") | |
2190 | { | |
2191 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2192 | ||
e16d030c | 2193 | EVENT_OFF(bt->t_stats); |
ed18356f DL |
2194 | if (no) |
2195 | bt->stat_msec = 0; | |
2196 | else if (interval_str) | |
2197 | bt->stat_msec = interval; | |
2198 | else | |
2199 | bt->stat_msec = BMP_STAT_DEFAULT_TIMER; | |
2200 | ||
2201 | if (bt->stat_msec) | |
907a2395 DS |
2202 | event_add_timer_msec(bm->master, bmp_stats, bt, bt->stat_msec, |
2203 | &bt->t_stats); | |
ed18356f DL |
2204 | return CMD_SUCCESS; |
2205 | } | |
2206 | ||
2207 | DEFPY(bmp_monitor_cfg, | |
2208 | bmp_monitor_cmd, | |
5dde2965 | 2209 | "[no] bmp monitor <ipv4|ipv6|l2vpn> <unicast|multicast|evpn|vpn> <pre-policy|post-policy>$policy", |
ed18356f DL |
2210 | NO_STR |
2211 | BMP_STR | |
2212 | "Send BMP route monitoring messages\n" | |
00e6edb9 DA |
2213 | BGP_AF_STR |
2214 | BGP_AF_STR | |
2215 | BGP_AF_STR | |
2216 | BGP_AF_STR | |
2217 | BGP_AF_STR | |
2218 | BGP_AF_STR | |
2219 | BGP_AF_STR | |
ed18356f DL |
2220 | "Send state before policy and filter processing\n" |
2221 | "Send state with policy and filters applied\n") | |
2222 | { | |
2223 | int index = 0; | |
2224 | uint8_t flag, prev; | |
2225 | afi_t afi; | |
2226 | safi_t safi; | |
2227 | ||
2228 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2229 | struct bmp *bmp; | |
2230 | ||
2231 | argv_find_and_parse_afi(argv, argc, &index, &afi); | |
2232 | argv_find_and_parse_safi(argv, argc, &index, &safi); | |
2233 | ||
2234 | if (policy[1] == 'r') | |
2235 | flag = BMP_MON_PREPOLICY; | |
2236 | else | |
2237 | flag = BMP_MON_POSTPOLICY; | |
2238 | ||
2239 | prev = bt->afimon[afi][safi]; | |
2240 | if (no) | |
2241 | bt->afimon[afi][safi] &= ~flag; | |
2242 | else | |
2243 | bt->afimon[afi][safi] |= flag; | |
2244 | ||
2245 | if (prev == bt->afimon[afi][safi]) | |
2246 | return CMD_SUCCESS; | |
2247 | ||
2248 | frr_each (bmp_session, &bt->sessions, bmp) { | |
2249 | if (bmp->syncafi == afi && bmp->syncsafi == safi) { | |
2250 | bmp->syncafi = AFI_MAX; | |
2251 | bmp->syncsafi = SAFI_MAX; | |
2252 | } | |
2253 | ||
2254 | if (!bt->afimon[afi][safi]) { | |
2255 | bmp->afistate[afi][safi] = BMP_AFI_INACTIVE; | |
2256 | continue; | |
2257 | } | |
2258 | ||
2259 | bmp->afistate[afi][safi] = BMP_AFI_NEEDSYNC; | |
2260 | } | |
2261 | ||
2262 | return CMD_SUCCESS; | |
2263 | } | |
2264 | ||
2265 | DEFPY(bmp_mirror_cfg, | |
2266 | bmp_mirror_cmd, | |
2267 | "[no] bmp mirror", | |
2268 | NO_STR | |
2269 | BMP_STR | |
2270 | "Send BMP route mirroring messages\n") | |
2271 | { | |
2272 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2273 | struct bmp *bmp; | |
2274 | ||
2275 | if (bt->mirror == !no) | |
2276 | return CMD_SUCCESS; | |
2277 | ||
2278 | bt->mirror = !no; | |
2279 | if (bt->mirror) | |
2280 | return CMD_SUCCESS; | |
2281 | ||
2282 | frr_each (bmp_session, &bt->sessions, bmp) { | |
2283 | struct bmp_mirrorq *bmq; | |
2284 | ||
2285 | while ((bmq = bmp_pull_mirror(bmp))) | |
2286 | if (!bmq->refcount) | |
2287 | XFREE(MTYPE_BMP_MIRRORQ, bmq); | |
2288 | } | |
2289 | return CMD_SUCCESS; | |
2290 | } | |
2291 | ||
2292 | DEFPY(bmp_mirror_limit_cfg, | |
2293 | bmp_mirror_limit_cmd, | |
2294 | "bmp mirror buffer-limit (0-4294967294)", | |
2295 | BMP_STR | |
2296 | "Route Mirroring settings\n" | |
2297 | "Configure maximum memory used for buffered mirroring messages\n" | |
2298 | "Limit in bytes\n") | |
2299 | { | |
2300 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
2301 | struct bmp_bgp *bmpbgp; | |
2302 | ||
2303 | bmpbgp = bmp_bgp_get(bgp); | |
2304 | bmpbgp->mirror_qsizelimit = buffer_limit; | |
2305 | ||
2306 | return CMD_SUCCESS; | |
2307 | } | |
2308 | ||
2309 | DEFPY(no_bmp_mirror_limit_cfg, | |
2310 | no_bmp_mirror_limit_cmd, | |
2311 | "no bmp mirror buffer-limit [(0-4294967294)]", | |
2312 | NO_STR | |
2313 | BMP_STR | |
2314 | "Route Mirroring settings\n" | |
2315 | "Configure maximum memory used for buffered mirroring messages\n" | |
2316 | "Limit in bytes\n") | |
2317 | { | |
2318 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
2319 | struct bmp_bgp *bmpbgp; | |
2320 | ||
2321 | bmpbgp = bmp_bgp_get(bgp); | |
2322 | bmpbgp->mirror_qsizelimit = ~0UL; | |
2323 | ||
2324 | return CMD_SUCCESS; | |
2325 | } | |
2326 | ||
2327 | ||
2328 | DEFPY(show_bmp, | |
2329 | show_bmp_cmd, | |
2330 | "show bmp", | |
2331 | SHOW_STR | |
2332 | BMP_STR) | |
2333 | { | |
2334 | struct bmp_bgp *bmpbgp; | |
2335 | struct bmp_targets *bt; | |
2336 | struct bmp_listener *bl; | |
150470da | 2337 | struct bmp_active *ba; |
ed18356f DL |
2338 | struct bmp *bmp; |
2339 | struct ttable *tt; | |
150470da DL |
2340 | char uptime[BGP_UPTIME_LEN]; |
2341 | char *out; | |
ed18356f DL |
2342 | |
2343 | frr_each(bmp_bgph, &bmp_bgph, bmpbgp) { | |
2344 | vty_out(vty, "BMP state for BGP %s:\n\n", | |
2345 | bmpbgp->bgp->name_pretty); | |
2346 | vty_out(vty, " Route Mirroring %9zu bytes (%zu messages) pending\n", | |
2347 | bmpbgp->mirror_qsize, | |
2348 | bmp_mirrorq_count(&bmpbgp->mirrorq)); | |
2349 | vty_out(vty, " %9zu bytes maximum buffer used\n", | |
2350 | bmpbgp->mirror_qsizemax); | |
2351 | if (bmpbgp->mirror_qsizelimit != ~0UL) | |
2352 | vty_out(vty, " %9zu bytes buffer size limit\n", | |
2353 | bmpbgp->mirror_qsizelimit); | |
2354 | vty_out(vty, "\n"); | |
2355 | ||
2356 | frr_each(bmp_targets, &bmpbgp->targets, bt) { | |
2357 | vty_out(vty, " Targets \"%s\":\n", bt->name); | |
2358 | vty_out(vty, " Route Mirroring %sabled\n", | |
2359 | bt->mirror ? "en" : "dis"); | |
2360 | ||
2361 | afi_t afi; | |
2362 | safi_t safi; | |
2363 | ||
2364 | FOREACH_AFI_SAFI (afi, safi) { | |
2365 | const char *str = NULL; | |
2366 | ||
2367 | switch (bt->afimon[afi][safi]) { | |
2368 | case BMP_MON_PREPOLICY: | |
2369 | str = "pre-policy"; | |
2370 | break; | |
2371 | case BMP_MON_POSTPOLICY: | |
2372 | str = "post-policy"; | |
2373 | break; | |
2374 | case BMP_MON_PREPOLICY | BMP_MON_POSTPOLICY: | |
2375 | str = "pre-policy and post-policy"; | |
2376 | break; | |
2377 | } | |
2378 | if (!str) | |
2379 | continue; | |
2380 | vty_out(vty, " Route Monitoring %s %s %s\n", | |
2381 | afi2str(afi), safi2str(safi), str); | |
2382 | } | |
2383 | ||
2384 | vty_out(vty, " Listeners:\n"); | |
2385 | frr_each (bmp_listeners, &bt->listeners, bl) | |
47e12884 DA |
2386 | vty_out(vty, " %pSU:%d\n", &bl->addr, |
2387 | bl->port); | |
ed18356f | 2388 | |
150470da DL |
2389 | vty_out(vty, "\n Outbound connections:\n"); |
2390 | tt = ttable_new(&ttable_styles[TTSTYLE_BLANK]); | |
09f267ec | 2391 | ttable_add_row(tt, "remote|state||timer|local"); |
150470da DL |
2392 | ttable_rowseps(tt, 0, BOTTOM, true, '-'); |
2393 | frr_each (bmp_actives, &bt->actives, ba) { | |
2394 | const char *state_str = "?"; | |
2395 | ||
2396 | if (ba->bmp) { | |
2397 | peer_uptime(ba->bmp->t_up.tv_sec, | |
2398 | uptime, sizeof(uptime), | |
2399 | false, NULL); | |
47e12884 DA |
2400 | ttable_add_row(tt, |
2401 | "%s:%d|Up|%s|%s|%pSU", | |
150470da | 2402 | ba->hostname, ba->port, |
09f267ec | 2403 | ba->bmp->remote, uptime, |
47e12884 | 2404 | &ba->addrsrc); |
150470da DL |
2405 | continue; |
2406 | } | |
2407 | ||
2408 | uptime[0] = '\0'; | |
2409 | ||
2410 | if (ba->t_timer) { | |
4f830a07 | 2411 | long trem = event_timer_remain_second( |
150470da DL |
2412 | ba->t_timer); |
2413 | ||
2414 | peer_uptime(monotime(NULL) - trem, | |
2415 | uptime, sizeof(uptime), | |
2416 | false, NULL); | |
2417 | state_str = "RetryWait"; | |
2418 | } else if (ba->t_read) { | |
2419 | state_str = "Connecting"; | |
2420 | } else if (ba->resq.callback) { | |
2421 | state_str = "Resolving"; | |
2422 | } | |
2423 | ||
47e12884 | 2424 | ttable_add_row(tt, "%s:%d|%s|%s|%s|%pSU", |
150470da DL |
2425 | ba->hostname, ba->port, |
2426 | state_str, | |
2427 | ba->last_err ? ba->last_err : "", | |
47e12884 | 2428 | uptime, &ba->addrsrc); |
150470da DL |
2429 | continue; |
2430 | } | |
2431 | out = ttable_dump(tt, "\n"); | |
2432 | vty_out(vty, "%s", out); | |
2433 | XFREE(MTYPE_TMP, out); | |
2434 | ttable_del(tt); | |
2435 | ||
ed18356f DL |
2436 | vty_out(vty, "\n %zu connected clients:\n", |
2437 | bmp_session_count(&bt->sessions)); | |
2438 | tt = ttable_new(&ttable_styles[TTSTYLE_BLANK]); | |
2439 | ttable_add_row(tt, "remote|uptime|MonSent|MirrSent|MirrLost|ByteSent|ByteQ|ByteQKernel"); | |
2440 | ttable_rowseps(tt, 0, BOTTOM, true, '-'); | |
2441 | ||
2442 | frr_each (bmp_session, &bt->sessions, bmp) { | |
2443 | uint64_t total; | |
2444 | size_t q, kq; | |
2445 | ||
2446 | pullwr_stats(bmp->pullwr, &total, &q, &kq); | |
2447 | ||
9e89da8c DL |
2448 | peer_uptime(bmp->t_up.tv_sec, uptime, |
2449 | sizeof(uptime), false, NULL); | |
2450 | ||
2451 | ttable_add_row(tt, "%s|%s|%Lu|%Lu|%Lu|%Lu|%zu|%zu", | |
2452 | bmp->remote, uptime, | |
ed18356f DL |
2453 | bmp->cnt_update, |
2454 | bmp->cnt_mirror, | |
2455 | bmp->cnt_mirror_overruns, | |
2456 | total, q, kq); | |
2457 | } | |
150470da | 2458 | out = ttable_dump(tt, "\n"); |
ed18356f DL |
2459 | vty_out(vty, "%s", out); |
2460 | XFREE(MTYPE_TMP, out); | |
2461 | ttable_del(tt); | |
2462 | vty_out(vty, "\n"); | |
2463 | } | |
2464 | } | |
2465 | ||
2466 | return CMD_SUCCESS; | |
2467 | } | |
2468 | ||
2469 | static int bmp_config_write(struct bgp *bgp, struct vty *vty) | |
2470 | { | |
2471 | struct bmp_bgp *bmpbgp = bmp_bgp_find(bgp); | |
2472 | struct bmp_targets *bt; | |
2473 | struct bmp_listener *bl; | |
2474 | struct bmp_active *ba; | |
ed18356f DL |
2475 | afi_t afi; |
2476 | safi_t safi; | |
2477 | ||
2478 | if (!bmpbgp) | |
2479 | return 0; | |
2480 | ||
2481 | if (bmpbgp->mirror_qsizelimit != ~0UL) | |
2482 | vty_out(vty, " !\n bmp mirror buffer-limit %zu\n", | |
2483 | bmpbgp->mirror_qsizelimit); | |
2484 | ||
2485 | frr_each(bmp_targets, &bmpbgp->targets, bt) { | |
2486 | vty_out(vty, " !\n bmp targets %s\n", bt->name); | |
2487 | ||
2488 | if (bt->acl6_name) | |
2489 | vty_out(vty, " ipv6 access-list %s\n", bt->acl6_name); | |
2490 | if (bt->acl_name) | |
2491 | vty_out(vty, " ip access-list %s\n", bt->acl_name); | |
2492 | ||
2493 | if (bt->stat_msec) | |
2494 | vty_out(vty, " bmp stats interval %d\n", | |
2495 | bt->stat_msec); | |
2496 | ||
2497 | if (bt->mirror) | |
2498 | vty_out(vty, " bmp mirror\n"); | |
2499 | ||
2500 | FOREACH_AFI_SAFI (afi, safi) { | |
ed18356f DL |
2501 | if (bt->afimon[afi][safi] & BMP_MON_PREPOLICY) |
2502 | vty_out(vty, " bmp monitor %s %s pre-policy\n", | |
0884f164 | 2503 | afi2str_lower(afi), safi2str(safi)); |
ed18356f | 2504 | if (bt->afimon[afi][safi] & BMP_MON_POSTPOLICY) |
0884f164 DS |
2505 | vty_out(vty, |
2506 | " bmp monitor %s %s post-policy\n", | |
2507 | afi2str_lower(afi), safi2str(safi)); | |
ed18356f DL |
2508 | } |
2509 | frr_each (bmp_listeners, &bt->listeners, bl) | |
47e12884 DA |
2510 | vty_out(vty, " \n bmp listener %pSU port %d\n", |
2511 | &bl->addr, bl->port); | |
ed18356f | 2512 | |
09f267ec FD |
2513 | frr_each (bmp_actives, &bt->actives, ba) { |
2514 | vty_out(vty, " bmp connect %s port %u min-retry %u max-retry %u", | |
2515 | ba->hostname, ba->port, | |
2516 | ba->minretry, ba->maxretry); | |
07679ad9 | 2517 | |
09f267ec FD |
2518 | if (ba->ifsrc) |
2519 | vty_out(vty, " source-interface %s\n", ba->ifsrc); | |
2520 | else | |
2521 | vty_out(vty, "\n"); | |
2522 | } | |
07679ad9 | 2523 | vty_out(vty, " exit\n"); |
ed18356f DL |
2524 | } |
2525 | ||
2526 | return 0; | |
2527 | } | |
2528 | ||
cd9d0537 | 2529 | static int bgp_bmp_init(struct event_loop *tm) |
ed18356f | 2530 | { |
612c2c15 | 2531 | install_node(&bmp_node); |
ed18356f | 2532 | install_default(BMP_NODE); |
bbd747df DA |
2533 | |
2534 | cmd_variable_handler_register(bmp_targets_var_handlers); | |
2535 | ||
ed18356f DL |
2536 | install_element(BGP_NODE, &bmp_targets_cmd); |
2537 | install_element(BGP_NODE, &no_bmp_targets_cmd); | |
2538 | ||
2539 | install_element(BMP_NODE, &bmp_listener_cmd); | |
2540 | install_element(BMP_NODE, &no_bmp_listener_cmd); | |
2541 | install_element(BMP_NODE, &bmp_connect_cmd); | |
2542 | install_element(BMP_NODE, &bmp_acl_cmd); | |
2543 | install_element(BMP_NODE, &bmp_stats_cmd); | |
2544 | install_element(BMP_NODE, &bmp_monitor_cmd); | |
2545 | install_element(BMP_NODE, &bmp_mirror_cmd); | |
2546 | ||
2547 | install_element(BGP_NODE, &bmp_mirror_limit_cmd); | |
2548 | install_element(BGP_NODE, &no_bmp_mirror_limit_cmd); | |
2549 | ||
2550 | install_element(VIEW_NODE, &show_bmp_cmd); | |
2551 | ||
2552 | resolver_init(tm); | |
0ba4eeec | 2553 | return 0; |
6c29258c YO |
2554 | } |
2555 | ||
0ba4eeec DL |
2556 | static int bgp_bmp_module_init(void) |
2557 | { | |
2558 | hook_register(bgp_packet_dump, bmp_mirror_packet); | |
ed18356f | 2559 | hook_register(bgp_packet_send, bmp_outgoing_packet); |
60563d0e | 2560 | hook_register(peer_status_changed, bmp_peer_status_changed); |
ed18356f DL |
2561 | hook_register(peer_backward_transition, bmp_peer_backward); |
2562 | hook_register(bgp_process, bmp_process); | |
2563 | hook_register(bgp_inst_config_write, bmp_config_write); | |
2564 | hook_register(bgp_inst_delete, bmp_bgp_del); | |
0ba4eeec DL |
2565 | hook_register(frr_late_init, bgp_bmp_init); |
2566 | return 0; | |
2567 | } | |
6c29258c | 2568 | |
0ba4eeec DL |
2569 | FRR_MODULE_SETUP(.name = "bgpd_bmp", .version = FRR_VERSION, |
2570 | .description = "bgpd BMP module", | |
80413c20 DL |
2571 | .init = bgp_bmp_module_init, |
2572 | ); |