]>
Commit | Line | Data |
---|---|---|
6c29258c YO |
1 | /* BMP support. |
2 | * Copyright (C) 2018 Yasuhiro Ohara | |
ed18356f | 3 | * Copyright (C) 2019 David Lamparter for NetDEF, Inc. |
6c29258c | 4 | * |
ed18356f DL |
5 | * This program is free software; you can redistribute it and/or modify it |
6 | * under the terms of the GNU General Public License as published by the Free | |
7 | * Software Foundation; either version 2 of the License, or (at your option) | |
8 | * any later version. | |
6c29258c | 9 | * |
ed18356f DL |
10 | * This program is distributed in the hope that it will be useful, but WITHOUT |
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
13 | * more details. | |
6c29258c YO |
14 | * |
15 | * You should have received a copy of the GNU General Public License along | |
16 | * with this program; see the file COPYING; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | */ | |
19 | ||
20 | #include <zebra.h> | |
21 | ||
22 | #include "log.h" | |
23 | #include "stream.h" | |
24 | #include "sockunion.h" | |
25 | #include "command.h" | |
26 | #include "prefix.h" | |
27 | #include "thread.h" | |
28 | #include "linklist.h" | |
29 | #include "queue.h" | |
ed18356f | 30 | #include "pullwr.h" |
6c29258c YO |
31 | #include "memory.h" |
32 | #include "network.h" | |
33 | #include "filter.h" | |
34 | #include "lib_errors.h" | |
35 | #include "stream.h" | |
0ba4eeec | 36 | #include "libfrr.h" |
09781197 | 37 | #include "lib/version.h" |
ed18356f DL |
38 | #include "jhash.h" |
39 | #include "termtable.h" | |
6c29258c YO |
40 | |
41 | #include "bgpd/bgp_table.h" | |
42 | #include "bgpd/bgpd.h" | |
43 | #include "bgpd/bgp_route.h" | |
44 | #include "bgpd/bgp_attr.h" | |
45 | #include "bgpd/bgp_dump.h" | |
46 | #include "bgpd/bgp_errors.h" | |
d35a6c28 | 47 | #include "bgpd/bgp_packet.h" |
6c29258c | 48 | #include "bgpd/bgp_bmp.h" |
ed18356f DL |
49 | #include "bgpd/bgp_fsm.h" |
50 | #include "bgpd/bgp_updgrp.h" | |
51 | #include "bgpd/bgp_vty.h" | |
e0302d7e | 52 | #include "bgpd/bgp_trace.h" |
09f267ec | 53 | #include "bgpd/bgp_network.h" |
ed18356f DL |
54 | |
55 | static void bmp_close(struct bmp *bmp); | |
56 | static struct bmp_bgp *bmp_bgp_find(struct bgp *bgp); | |
57 | static void bmp_targets_put(struct bmp_targets *bt); | |
58 | static struct bmp_bgp_peer *bmp_bgp_peer_find(uint64_t peerid); | |
59 | static struct bmp_bgp_peer *bmp_bgp_peer_get(struct peer *peer); | |
60 | static void bmp_active_disconnected(struct bmp_active *ba); | |
61 | static void bmp_active_put(struct bmp_active *ba); | |
62 | ||
bf8d3d6a | 63 | DEFINE_MGROUP(BMP, "BMP (BGP Monitoring Protocol)"); |
ed18356f | 64 | |
bf8d3d6a DL |
65 | DEFINE_MTYPE_STATIC(BMP, BMP_CONN, "BMP connection state"); |
66 | DEFINE_MTYPE_STATIC(BMP, BMP_TARGETS, "BMP targets"); | |
67 | DEFINE_MTYPE_STATIC(BMP, BMP_TARGETSNAME, "BMP targets name"); | |
68 | DEFINE_MTYPE_STATIC(BMP, BMP_LISTENER, "BMP listener"); | |
69 | DEFINE_MTYPE_STATIC(BMP, BMP_ACTIVE, "BMP active connection config"); | |
70 | DEFINE_MTYPE_STATIC(BMP, BMP_ACLNAME, "BMP access-list name"); | |
71 | DEFINE_MTYPE_STATIC(BMP, BMP_QUEUE, "BMP update queue item"); | |
72 | DEFINE_MTYPE_STATIC(BMP, BMP, "BMP instance state"); | |
73 | DEFINE_MTYPE_STATIC(BMP, BMP_MIRRORQ, "BMP route mirroring buffer"); | |
74 | DEFINE_MTYPE_STATIC(BMP, BMP_PEER, "BMP per BGP peer data"); | |
75 | DEFINE_MTYPE_STATIC(BMP, BMP_OPEN, "BMP stored BGP OPEN message"); | |
ed18356f | 76 | |
96244aca | 77 | DEFINE_QOBJ_TYPE(bmp_targets); |
ed18356f DL |
78 | |
79 | static int bmp_bgp_cmp(const struct bmp_bgp *a, const struct bmp_bgp *b) | |
80 | { | |
81 | if (a->bgp < b->bgp) | |
82 | return -1; | |
83 | if (a->bgp > b->bgp) | |
84 | return 1; | |
85 | return 0; | |
86 | } | |
87 | ||
88 | static uint32_t bmp_bgp_hash(const struct bmp_bgp *e) | |
89 | { | |
90 | return jhash(&e->bgp, sizeof(e->bgp), 0x55aa5a5a); | |
91 | } | |
6c29258c | 92 | |
960b9a53 | 93 | DECLARE_HASH(bmp_bgph, struct bmp_bgp, bbi, bmp_bgp_cmp, bmp_bgp_hash); |
ed18356f DL |
94 | |
95 | struct bmp_bgph_head bmp_bgph; | |
96 | ||
97 | static int bmp_bgp_peer_cmp(const struct bmp_bgp_peer *a, | |
98 | const struct bmp_bgp_peer *b) | |
99 | { | |
100 | if (a->peerid < b->peerid) | |
101 | return -1; | |
102 | if (a->peerid > b->peerid) | |
103 | return 1; | |
104 | return 0; | |
105 | } | |
106 | ||
107 | static uint32_t bmp_bgp_peer_hash(const struct bmp_bgp_peer *e) | |
108 | { | |
109 | return e->peerid; | |
110 | } | |
6c29258c | 111 | |
ed18356f | 112 | DECLARE_HASH(bmp_peerh, struct bmp_bgp_peer, bpi, |
960b9a53 | 113 | bmp_bgp_peer_cmp, bmp_bgp_peer_hash); |
6c29258c | 114 | |
ed18356f | 115 | struct bmp_peerh_head bmp_peerh; |
6c29258c | 116 | |
960b9a53 | 117 | DECLARE_LIST(bmp_mirrorq, struct bmp_mirrorq, bmi); |
6c29258c | 118 | |
ed18356f | 119 | /* listener management */ |
6c29258c | 120 | |
ed18356f DL |
121 | static int bmp_listener_cmp(const struct bmp_listener *a, |
122 | const struct bmp_listener *b) | |
6c29258c | 123 | { |
ed18356f | 124 | int c; |
6c29258c | 125 | |
ed18356f DL |
126 | c = sockunion_cmp(&a->addr, &b->addr); |
127 | if (c) | |
128 | return c; | |
129 | if (a->port < b->port) | |
130 | return -1; | |
131 | if (a->port > b->port) | |
132 | return 1; | |
133 | return 0; | |
134 | } | |
6c29258c | 135 | |
960b9a53 DL |
136 | DECLARE_SORTLIST_UNIQ(bmp_listeners, struct bmp_listener, bli, |
137 | bmp_listener_cmp); | |
ed18356f | 138 | |
5cb3a153 DA |
139 | static void bmp_listener_put(struct bmp_listener *bl) |
140 | { | |
141 | bmp_listeners_del(&bl->targets->listeners, bl); | |
142 | XFREE(MTYPE_BMP_LISTENER, bl); | |
143 | } | |
144 | ||
ed18356f DL |
145 | static int bmp_targets_cmp(const struct bmp_targets *a, |
146 | const struct bmp_targets *b) | |
147 | { | |
148 | return strcmp(a->name, b->name); | |
6c29258c YO |
149 | } |
150 | ||
960b9a53 | 151 | DECLARE_SORTLIST_UNIQ(bmp_targets, struct bmp_targets, bti, bmp_targets_cmp); |
ed18356f | 152 | |
960b9a53 | 153 | DECLARE_LIST(bmp_session, struct bmp, bsi); |
ed18356f | 154 | |
960b9a53 | 155 | DECLARE_DLIST(bmp_qlist, struct bmp_queue_entry, bli); |
ed18356f DL |
156 | |
157 | static int bmp_qhash_cmp(const struct bmp_queue_entry *a, | |
158 | const struct bmp_queue_entry *b) | |
6c29258c | 159 | { |
ed18356f | 160 | int ret; |
87102aa0 | 161 | if (a->afi == AFI_L2VPN && a->safi == SAFI_EVPN && b->afi == AFI_L2VPN |
162 | && b->safi == SAFI_EVPN) { | |
163 | ret = prefix_cmp(&a->rd, &b->rd); | |
164 | if (ret) | |
165 | return ret; | |
166 | } else if (a->afi == AFI_L2VPN && a->safi == SAFI_EVPN) | |
167 | return 1; | |
168 | else if (b->afi == AFI_L2VPN && b->safi == SAFI_EVPN) | |
169 | return -1; | |
170 | ||
5dde2965 FD |
171 | if (a->afi == b->afi && a->safi == SAFI_MPLS_VPN && |
172 | b->safi == SAFI_MPLS_VPN) { | |
173 | ret = prefix_cmp(&a->rd, &b->rd); | |
174 | if (ret) | |
175 | return ret; | |
176 | } else if (a->safi == SAFI_MPLS_VPN) | |
177 | return 1; | |
178 | else if (b->safi == SAFI_MPLS_VPN) | |
179 | return -1; | |
180 | ||
ed18356f DL |
181 | ret = prefix_cmp(&a->p, &b->p); |
182 | if (ret) | |
183 | return ret; | |
184 | ret = memcmp(&a->peerid, &b->peerid, | |
185 | offsetof(struct bmp_queue_entry, refcount) - | |
186 | offsetof(struct bmp_queue_entry, peerid)); | |
187 | return ret; | |
6c29258c YO |
188 | } |
189 | ||
ed18356f | 190 | static uint32_t bmp_qhash_hkey(const struct bmp_queue_entry *e) |
6c29258c | 191 | { |
ed18356f DL |
192 | uint32_t key; |
193 | ||
194 | key = prefix_hash_key((void *)&e->p); | |
195 | key = jhash(&e->peerid, | |
87102aa0 | 196 | offsetof(struct bmp_queue_entry, refcount) |
197 | - offsetof(struct bmp_queue_entry, peerid), | |
198 | key); | |
5dde2965 FD |
199 | if ((e->afi == AFI_L2VPN && e->safi == SAFI_EVPN) || |
200 | (e->safi == SAFI_MPLS_VPN)) | |
87102aa0 | 201 | key = jhash(&e->rd, |
202 | offsetof(struct bmp_queue_entry, rd) | |
203 | - offsetof(struct bmp_queue_entry, refcount) | |
204 | + PSIZE(e->rd.prefixlen), | |
205 | key); | |
206 | ||
ed18356f DL |
207 | return key; |
208 | } | |
6c29258c | 209 | |
ed18356f | 210 | DECLARE_HASH(bmp_qhash, struct bmp_queue_entry, bhi, |
960b9a53 | 211 | bmp_qhash_cmp, bmp_qhash_hkey); |
6c29258c | 212 | |
ed18356f DL |
213 | static int bmp_active_cmp(const struct bmp_active *a, |
214 | const struct bmp_active *b) | |
215 | { | |
216 | int c; | |
217 | ||
218 | c = strcmp(a->hostname, b->hostname); | |
219 | if (c) | |
220 | return c; | |
221 | if (a->port < b->port) | |
222 | return -1; | |
223 | if (a->port > b->port) | |
224 | return 1; | |
6c29258c YO |
225 | return 0; |
226 | } | |
227 | ||
960b9a53 | 228 | DECLARE_SORTLIST_UNIQ(bmp_actives, struct bmp_active, bai, bmp_active_cmp); |
ed18356f DL |
229 | |
230 | static struct bmp *bmp_new(struct bmp_targets *bt, int bmp_sock) | |
6c29258c | 231 | { |
ed18356f DL |
232 | struct bmp *new = XCALLOC(MTYPE_BMP_CONN, sizeof(struct bmp)); |
233 | afi_t afi; | |
234 | safi_t safi; | |
235 | ||
236 | monotime(&new->t_up); | |
237 | new->targets = bt; | |
238 | new->socket = bmp_sock; | |
239 | new->syncafi = AFI_MAX; | |
240 | ||
241 | FOREACH_AFI_SAFI (afi, safi) { | |
242 | new->afistate[afi][safi] = bt->afimon[afi][safi] | |
243 | ? BMP_AFI_NEEDSYNC : BMP_AFI_INACTIVE; | |
244 | } | |
245 | ||
246 | bmp_session_add_tail(&bt->sessions, new); | |
247 | return new; | |
6c29258c | 248 | } |
6c29258c | 249 | |
ed18356f | 250 | static void bmp_free(struct bmp *bmp) |
6c29258c | 251 | { |
ed18356f DL |
252 | bmp_session_del(&bmp->targets->sessions, bmp); |
253 | XFREE(MTYPE_BMP_CONN, bmp); | |
6c29258c YO |
254 | } |
255 | ||
256 | static void bmp_common_hdr(struct stream *s, uint8_t ver, uint8_t type) | |
257 | { | |
258 | stream_putc(s, ver); | |
259 | stream_putl(s, 0); //dummy message length. will be set later. | |
260 | stream_putc(s, type); | |
261 | } | |
262 | ||
ed18356f DL |
263 | static void bmp_per_peer_hdr(struct stream *s, struct peer *peer, |
264 | uint8_t flags, const struct timeval *tv) | |
6c29258c | 265 | { |
6c29258c YO |
266 | char peer_distinguisher[8]; |
267 | ||
268 | #define BMP_PEER_TYPE_GLOBAL_INSTANCE 0 | |
269 | #define BMP_PEER_TYPE_RD_INSTANCE 1 | |
270 | #define BMP_PEER_TYPE_LOCAL_INSTANCE 2 | |
271 | ||
272 | #define BMP_PEER_FLAG_V (1 << 7) | |
273 | #define BMP_PEER_FLAG_L (1 << 6) | |
274 | #define BMP_PEER_FLAG_A (1 << 5) | |
275 | ||
276 | /* Peer Type */ | |
277 | stream_putc(s, BMP_PEER_TYPE_GLOBAL_INSTANCE); | |
278 | ||
279 | /* Peer Flags */ | |
ed18356f DL |
280 | if (peer->su.sa.sa_family == AF_INET6) |
281 | SET_FLAG(flags, BMP_PEER_FLAG_V); | |
282 | else | |
283 | UNSET_FLAG(flags, BMP_PEER_FLAG_V); | |
284 | stream_putc(s, flags); | |
6c29258c YO |
285 | |
286 | /* Peer Distinguisher */ | |
287 | memset (&peer_distinguisher[0], 0, 8); | |
288 | stream_put(s, &peer_distinguisher[0], 8); | |
289 | ||
290 | /* Peer Address */ | |
ed18356f DL |
291 | if (peer->su.sa.sa_family == AF_INET6) |
292 | stream_put(s, &peer->su.sin6.sin6_addr, 16); | |
293 | else if (peer->su.sa.sa_family == AF_INET) { | |
294 | stream_putl(s, 0); | |
295 | stream_putl(s, 0); | |
296 | stream_putl(s, 0); | |
297 | stream_put_in_addr(s, &peer->su.sin.sin_addr); | |
298 | } else { | |
299 | stream_putl(s, 0); | |
6c29258c YO |
300 | stream_putl(s, 0); |
301 | stream_putl(s, 0); | |
302 | stream_putl(s, 0); | |
6c29258c YO |
303 | } |
304 | ||
305 | /* Peer AS */ | |
306 | stream_putl(s, peer->as); | |
307 | ||
308 | /* Peer BGP ID */ | |
309 | stream_put_in_addr(s, &peer->remote_id); | |
310 | ||
311 | /* Timestamp */ | |
ed18356f DL |
312 | if (tv) { |
313 | stream_putl(s, tv->tv_sec); | |
314 | stream_putl(s, tv->tv_usec); | |
315 | } else { | |
316 | stream_putl(s, 0); | |
317 | stream_putl(s, 0); | |
318 | } | |
6c29258c YO |
319 | } |
320 | ||
ed18356f DL |
321 | static void bmp_put_info_tlv(struct stream *s, uint16_t type, |
322 | const char *string) | |
6c29258c YO |
323 | { |
324 | int len = strlen (string); | |
325 | stream_putw(s, type); | |
326 | stream_putw(s, len); | |
327 | stream_put(s, string, len); | |
328 | } | |
329 | ||
330 | static int bmp_send_initiation(struct bmp *bmp) | |
331 | { | |
332 | int len; | |
333 | struct stream *s; | |
334 | s = stream_new(BGP_MAX_PACKET_SIZE); | |
335 | bmp_common_hdr(s, BMP_VERSION_3, BMP_TYPE_INITIATION); | |
336 | ||
337 | #define BMP_INFO_TYPE_SYSDESCR 1 | |
338 | #define BMP_INFO_TYPE_SYSNAME 2 | |
ed18356f DL |
339 | bmp_put_info_tlv(s, BMP_INFO_TYPE_SYSDESCR, |
340 | FRR_FULL_NAME " " FRR_VER_SHORT); | |
341 | bmp_put_info_tlv(s, BMP_INFO_TYPE_SYSNAME, cmd_hostname_get()); | |
6c29258c YO |
342 | |
343 | len = stream_get_endp(s); | |
344 | stream_putl_at(s, BMP_LENGTH_POS, len); //message length is set. | |
345 | ||
ed18356f DL |
346 | pullwr_write_stream(bmp->pullwr, s); |
347 | stream_free(s); | |
6c29258c YO |
348 | return 0; |
349 | } | |
350 | ||
ed18356f DL |
351 | static void bmp_notify_put(struct stream *s, struct bgp_notify *nfy) |
352 | { | |
353 | size_t len_pos; | |
354 | uint8_t marker[16] = { | |
355 | 0xff, 0xff, 0xff, 0xff, | |
356 | 0xff, 0xff, 0xff, 0xff, | |
357 | 0xff, 0xff, 0xff, 0xff, | |
358 | 0xff, 0xff, 0xff, 0xff, | |
359 | }; | |
360 | ||
361 | stream_put(s, marker, sizeof(marker)); | |
362 | len_pos = stream_get_endp(s); | |
363 | stream_putw(s, 0); | |
364 | stream_putc(s, BGP_MSG_NOTIFY); | |
365 | stream_putc(s, nfy->code); | |
366 | stream_putc(s, nfy->subcode); | |
367 | stream_put(s, nfy->data, nfy->length); | |
368 | ||
369 | stream_putw_at(s, len_pos, stream_get_endp(s) - len_pos | |
370 | + sizeof(marker)); | |
371 | } | |
372 | ||
373 | static struct stream *bmp_peerstate(struct peer *peer, bool down) | |
6c29258c | 374 | { |
6c29258c | 375 | struct stream *s; |
ed18356f DL |
376 | size_t len; |
377 | struct timeval uptime, uptime_real; | |
6c29258c | 378 | |
ed18356f DL |
379 | uptime.tv_sec = peer->uptime; |
380 | uptime.tv_usec = 0; | |
381 | monotime_to_realtime(&uptime, &uptime_real); | |
6c29258c | 382 | |
ed18356f | 383 | #define BGP_BMP_MAX_PACKET_SIZE 1024 |
6c29258c | 384 | s = stream_new(BGP_MAX_PACKET_SIZE); |
6c29258c | 385 | |
feb17238 | 386 | if (peer_established(peer) && !down) { |
ed18356f | 387 | struct bmp_bgp_peer *bbpeer; |
6c29258c | 388 | |
ed18356f DL |
389 | bmp_common_hdr(s, BMP_VERSION_3, |
390 | BMP_TYPE_PEER_UP_NOTIFICATION); | |
391 | bmp_per_peer_hdr(s, peer, 0, &uptime_real); | |
6c29258c YO |
392 | |
393 | /* Local Address (16 bytes) */ | |
394 | if (peer->su_local->sa.sa_family == AF_INET6) | |
395 | stream_put(s, &peer->su_local->sin6.sin6_addr, 16); | |
396 | else if (peer->su_local->sa.sa_family == AF_INET) { | |
397 | stream_putl(s, 0); | |
398 | stream_putl(s, 0); | |
399 | stream_putl(s, 0); | |
400 | stream_put_in_addr(s, &peer->su_local->sin.sin_addr); | |
401 | } | |
402 | ||
403 | /* Local Port, Remote Port */ | |
404 | if (peer->su_local->sa.sa_family == AF_INET6) | |
405 | stream_putw(s, peer->su_local->sin6.sin6_port); | |
406 | else if (peer->su_local->sa.sa_family == AF_INET) | |
407 | stream_putw(s, peer->su_local->sin.sin_port); | |
408 | if (peer->su_remote->sa.sa_family == AF_INET6) | |
409 | stream_putw(s, peer->su_remote->sin6.sin6_port); | |
410 | else if (peer->su_remote->sa.sa_family == AF_INET) | |
411 | stream_putw(s, peer->su_remote->sin.sin_port); | |
412 | ||
ed18356f DL |
413 | static const uint8_t dummy_open[] = { |
414 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
415 | 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, | |
416 | 0x00, 0x13, 0x01, | |
417 | }; | |
6c29258c | 418 | |
ed18356f | 419 | bbpeer = bmp_bgp_peer_find(peer->qobj_node.nid); |
6c29258c | 420 | |
ed18356f DL |
421 | if (bbpeer && bbpeer->open_tx) |
422 | stream_put(s, bbpeer->open_tx, bbpeer->open_tx_len); | |
423 | else { | |
424 | stream_put(s, dummy_open, sizeof(dummy_open)); | |
63efca0e DL |
425 | zlog_warn("bmp: missing TX OPEN message for peer %s", |
426 | peer->host); | |
ed18356f DL |
427 | } |
428 | if (bbpeer && bbpeer->open_rx) | |
429 | stream_put(s, bbpeer->open_rx, bbpeer->open_rx_len); | |
430 | else { | |
431 | stream_put(s, dummy_open, sizeof(dummy_open)); | |
63efca0e DL |
432 | zlog_warn("bmp: missing RX OPEN message for peer %s", |
433 | peer->host); | |
ed18356f | 434 | } |
6c29258c | 435 | |
ed18356f DL |
436 | if (peer->desc) |
437 | bmp_put_info_tlv(s, 0, peer->desc); | |
438 | } else { | |
439 | uint8_t type; | |
440 | size_t type_pos; | |
441 | ||
442 | bmp_common_hdr(s, BMP_VERSION_3, | |
443 | BMP_TYPE_PEER_DOWN_NOTIFICATION); | |
444 | bmp_per_peer_hdr(s, peer, 0, &uptime_real); | |
445 | ||
446 | type_pos = stream_get_endp(s); | |
447 | stream_putc(s, 0); /* placeholder for down reason */ | |
448 | ||
449 | switch (peer->last_reset) { | |
450 | case PEER_DOWN_NOTIFY_RECEIVED: | |
451 | type = BMP_PEERDOWN_REMOTE_NOTIFY; | |
452 | bmp_notify_put(s, &peer->notify); | |
453 | break; | |
454 | case PEER_DOWN_CLOSE_SESSION: | |
455 | type = BMP_PEERDOWN_REMOTE_CLOSE; | |
456 | break; | |
21e8caa2 QY |
457 | case PEER_DOWN_WAITING_NHT: |
458 | type = BMP_PEERDOWN_LOCAL_FSM; | |
459 | stream_putw(s, BGP_FSM_TcpConnectionFails); | |
460 | break; | |
461 | /* | |
462 | * TODO: Map remaining PEER_DOWN_* reasons to RFC event codes. | |
463 | * TODO: Implement BMP_PEERDOWN_LOCAL_NOTIFY. | |
464 | * | |
465 | * See RFC7854 ss. 4.9 | |
466 | */ | |
ed18356f | 467 | default: |
21e8caa2 QY |
468 | type = BMP_PEERDOWN_LOCAL_FSM; |
469 | stream_putw(s, BMP_PEER_DOWN_NO_RELEVANT_EVENT_CODE); | |
ed18356f | 470 | break; |
6c29258c | 471 | } |
ed18356f | 472 | stream_putc_at(s, type_pos, type); |
6c29258c YO |
473 | } |
474 | ||
ed18356f DL |
475 | len = stream_get_endp(s); |
476 | stream_putl_at(s, BMP_LENGTH_POS, len); //message length is set. | |
477 | return s; | |
478 | } | |
479 | ||
480 | ||
481 | static int bmp_send_peerup(struct bmp *bmp) | |
482 | { | |
483 | struct peer *peer; | |
484 | struct listnode *node; | |
485 | struct stream *s; | |
486 | ||
487 | /* Walk down all peers */ | |
488 | for (ALL_LIST_ELEMENTS_RO(bmp->targets->bgp->peer, node, peer)) { | |
489 | s = bmp_peerstate(peer, false); | |
490 | pullwr_write_stream(bmp->pullwr, s); | |
491 | stream_free(s); | |
492 | } | |
6c29258c YO |
493 | |
494 | return 0; | |
495 | } | |
496 | ||
ed18356f DL |
497 | /* XXX: kludge - filling the pullwr's buffer */ |
498 | static void bmp_send_all(struct bmp_bgp *bmpbgp, struct stream *s) | |
499 | { | |
500 | struct bmp_targets *bt; | |
501 | struct bmp *bmp; | |
502 | ||
503 | frr_each(bmp_targets, &bmpbgp->targets, bt) | |
504 | frr_each(bmp_session, &bt->sessions, bmp) | |
505 | pullwr_write_stream(bmp->pullwr, s); | |
506 | stream_free(s); | |
507 | } | |
508 | ||
509 | /* | |
510 | * Route Mirroring | |
511 | */ | |
512 | ||
513 | #define BMP_MIRROR_TLV_TYPE_BGP_MESSAGE 0 | |
514 | #define BMP_MIRROR_TLV_TYPE_INFO 1 | |
515 | ||
516 | #define BMP_MIRROR_INFO_CODE_ERRORPDU 0 | |
517 | #define BMP_MIRROR_INFO_CODE_LOSTMSGS 1 | |
518 | ||
519 | static struct bmp_mirrorq *bmp_pull_mirror(struct bmp *bmp) | |
520 | { | |
521 | struct bmp_mirrorq *bmq; | |
522 | ||
523 | bmq = bmp->mirrorpos; | |
524 | if (!bmq) | |
525 | return NULL; | |
526 | ||
527 | bmp->mirrorpos = bmp_mirrorq_next(&bmp->targets->bmpbgp->mirrorq, bmq); | |
528 | ||
529 | bmq->refcount--; | |
530 | if (!bmq->refcount) { | |
531 | bmp->targets->bmpbgp->mirror_qsize -= sizeof(*bmq) + bmq->len; | |
532 | bmp_mirrorq_del(&bmp->targets->bmpbgp->mirrorq, bmq); | |
533 | } | |
534 | return bmq; | |
535 | } | |
536 | ||
537 | static void bmp_mirror_cull(struct bmp_bgp *bmpbgp) | |
538 | { | |
539 | while (bmpbgp->mirror_qsize > bmpbgp->mirror_qsizelimit) { | |
540 | struct bmp_mirrorq *bmq, *inner; | |
541 | struct bmp_targets *bt; | |
542 | struct bmp *bmp; | |
543 | ||
544 | bmq = bmp_mirrorq_first(&bmpbgp->mirrorq); | |
545 | ||
546 | frr_each(bmp_targets, &bmpbgp->targets, bt) { | |
547 | if (!bt->mirror) | |
548 | continue; | |
549 | frr_each(bmp_session, &bt->sessions, bmp) { | |
550 | if (bmp->mirrorpos != bmq) | |
551 | continue; | |
552 | ||
553 | while ((inner = bmp_pull_mirror(bmp))) { | |
554 | if (!inner->refcount) | |
555 | XFREE(MTYPE_BMP_MIRRORQ, | |
556 | inner); | |
557 | } | |
558 | ||
559 | zlog_warn("bmp[%s] lost mirror messages due to buffer size limit", | |
560 | bmp->remote); | |
561 | bmp->mirror_lost = true; | |
562 | pullwr_bump(bmp->pullwr); | |
563 | } | |
564 | } | |
565 | } | |
566 | } | |
567 | ||
d35a6c28 DL |
568 | static int bmp_mirror_packet(struct peer *peer, uint8_t type, bgp_size_t size, |
569 | struct stream *packet) | |
6c29258c | 570 | { |
ed18356f DL |
571 | struct bmp_bgp *bmpbgp = bmp_bgp_find(peer->bgp); |
572 | struct timeval tv; | |
573 | struct bmp_mirrorq *qitem; | |
574 | struct bmp_targets *bt; | |
6c29258c | 575 | struct bmp *bmp; |
6c29258c | 576 | |
e0302d7e QY |
577 | frrtrace(3, frr_bgp, bmp_mirror_packet, peer, type, packet); |
578 | ||
ed18356f DL |
579 | gettimeofday(&tv, NULL); |
580 | ||
581 | if (type == BGP_MSG_OPEN) { | |
582 | struct bmp_bgp_peer *bbpeer = bmp_bgp_peer_get(peer); | |
583 | ||
584 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_rx); | |
585 | ||
586 | bbpeer->open_rx_len = size; | |
587 | bbpeer->open_rx = XMALLOC(MTYPE_BMP_OPEN, size); | |
588 | memcpy(bbpeer->open_rx, packet->data, size); | |
589 | } | |
590 | ||
591 | if (!bmpbgp) | |
d35a6c28 | 592 | return 0; |
6c29258c | 593 | |
ed18356f DL |
594 | qitem = XCALLOC(MTYPE_BMP_MIRRORQ, sizeof(*qitem) + size); |
595 | qitem->peerid = peer->qobj_node.nid; | |
596 | qitem->tv = tv; | |
597 | qitem->len = size; | |
598 | memcpy(qitem->data, packet->data, size); | |
599 | ||
600 | frr_each(bmp_targets, &bmpbgp->targets, bt) { | |
601 | if (!bt->mirror) | |
602 | continue; | |
603 | frr_each(bmp_session, &bt->sessions, bmp) { | |
604 | qitem->refcount++; | |
605 | if (!bmp->mirrorpos) | |
606 | bmp->mirrorpos = qitem; | |
607 | pullwr_bump(bmp->pullwr); | |
608 | } | |
609 | } | |
610 | if (qitem->refcount == 0) | |
611 | XFREE(MTYPE_BMP_MIRRORQ, qitem); | |
612 | else { | |
613 | bmpbgp->mirror_qsize += sizeof(*qitem) + size; | |
614 | bmp_mirrorq_add_tail(&bmpbgp->mirrorq, qitem); | |
615 | ||
616 | bmp_mirror_cull(bmpbgp); | |
617 | ||
618 | bmpbgp->mirror_qsizemax = MAX(bmpbgp->mirror_qsizemax, | |
619 | bmpbgp->mirror_qsize); | |
620 | } | |
621 | return 0; | |
622 | } | |
623 | ||
624 | static void bmp_wrmirror_lost(struct bmp *bmp, struct pullwr *pullwr) | |
625 | { | |
626 | struct stream *s; | |
627 | struct timeval tv; | |
628 | ||
629 | gettimeofday(&tv, NULL); | |
630 | ||
631 | s = stream_new(BGP_MAX_PACKET_SIZE); | |
632 | ||
633 | bmp_common_hdr(s, BMP_VERSION_3, BMP_TYPE_ROUTE_MIRRORING); | |
634 | bmp_per_peer_hdr(s, bmp->targets->bgp->peer_self, 0, &tv); | |
635 | ||
636 | stream_putw(s, BMP_MIRROR_TLV_TYPE_INFO); | |
637 | stream_putw(s, 2); | |
638 | stream_putw(s, BMP_MIRROR_INFO_CODE_LOSTMSGS); | |
639 | stream_putl_at(s, BMP_LENGTH_POS, stream_get_endp(s)); | |
640 | ||
641 | bmp->cnt_mirror_overruns++; | |
642 | pullwr_write_stream(bmp->pullwr, s); | |
643 | stream_free(s); | |
644 | } | |
645 | ||
646 | static bool bmp_wrmirror(struct bmp *bmp, struct pullwr *pullwr) | |
647 | { | |
648 | struct bmp_mirrorq *bmq; | |
649 | struct peer *peer; | |
650 | bool written = false; | |
651 | ||
652 | if (bmp->mirror_lost) { | |
653 | bmp_wrmirror_lost(bmp, pullwr); | |
654 | bmp->mirror_lost = false; | |
655 | return true; | |
656 | } | |
657 | ||
658 | bmq = bmp_pull_mirror(bmp); | |
659 | if (!bmq) | |
660 | return false; | |
661 | ||
662 | peer = QOBJ_GET_TYPESAFE(bmq->peerid, peer); | |
663 | if (!peer) { | |
664 | zlog_info("bmp: skipping mirror message for deleted peer"); | |
665 | goto out; | |
666 | } | |
667 | ||
668 | struct stream *s; | |
6c29258c YO |
669 | s = stream_new(BGP_MAX_PACKET_SIZE); |
670 | ||
671 | bmp_common_hdr(s, BMP_VERSION_3, BMP_TYPE_ROUTE_MIRRORING); | |
ed18356f | 672 | bmp_per_peer_hdr(s, peer, 0, &bmq->tv); |
6c29258c YO |
673 | |
674 | /* BMP Mirror TLV. */ | |
6c29258c | 675 | stream_putw(s, BMP_MIRROR_TLV_TYPE_BGP_MESSAGE); |
ed18356f DL |
676 | stream_putw(s, bmq->len); |
677 | stream_putl_at(s, BMP_LENGTH_POS, stream_get_endp(s) + bmq->len); | |
6c29258c | 678 | |
ed18356f DL |
679 | bmp->cnt_mirror++; |
680 | pullwr_write_stream(bmp->pullwr, s); | |
681 | pullwr_write(bmp->pullwr, bmq->data, bmq->len); | |
6c29258c | 682 | |
ed18356f DL |
683 | stream_free(s); |
684 | written = true; | |
6c29258c | 685 | |
ed18356f DL |
686 | out: |
687 | if (!bmq->refcount) | |
688 | XFREE(MTYPE_BMP_MIRRORQ, bmq); | |
689 | return written; | |
6c29258c YO |
690 | } |
691 | ||
ed18356f DL |
692 | static int bmp_outgoing_packet(struct peer *peer, uint8_t type, bgp_size_t size, |
693 | struct stream *packet) | |
6c29258c | 694 | { |
ed18356f | 695 | if (type == BGP_MSG_OPEN) { |
e0302d7e QY |
696 | frrtrace(2, frr_bgp, bmp_update_saved_open, peer, packet); |
697 | ||
ed18356f | 698 | struct bmp_bgp_peer *bbpeer = bmp_bgp_peer_get(peer); |
6c29258c | 699 | |
ed18356f | 700 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_tx); |
6c29258c | 701 | |
ed18356f DL |
702 | bbpeer->open_tx_len = size; |
703 | bbpeer->open_tx = XMALLOC(MTYPE_BMP_OPEN, size); | |
704 | memcpy(bbpeer->open_tx, packet->data, size); | |
705 | } | |
706 | return 0; | |
707 | } | |
6c29258c | 708 | |
60563d0e | 709 | static int bmp_peer_status_changed(struct peer *peer) |
ed18356f DL |
710 | { |
711 | struct bmp_bgp *bmpbgp = bmp_bgp_find(peer->bgp); | |
60563d0e | 712 | struct bmp_bgp_peer *bbpeer, *bbdopp; |
6c29258c | 713 | |
e0302d7e QY |
714 | frrtrace(1, frr_bgp, bmp_peer_status_changed, peer); |
715 | ||
ed18356f DL |
716 | if (!bmpbgp) |
717 | return 0; | |
6c29258c | 718 | |
60563d0e DA |
719 | if (peer->status == Deleted) { |
720 | bbpeer = bmp_bgp_peer_find(peer->qobj_node.nid); | |
721 | if (bbpeer) { | |
722 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_rx); | |
723 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_tx); | |
724 | bmp_peerh_del(&bmp_peerh, bbpeer); | |
725 | XFREE(MTYPE_BMP_PEER, bbpeer); | |
726 | } | |
727 | return 0; | |
728 | } | |
729 | ||
df9e8ae7 | 730 | /* Check if this peer just went to Established */ |
fd2e2db6 | 731 | if ((peer->ostatus != OpenConfirm) || !(peer_established(peer))) |
df9e8ae7 MS |
732 | return 0; |
733 | ||
ed18356f | 734 | if (peer->doppelganger && (peer->doppelganger->status != Deleted)) { |
ed18356f DL |
735 | bbpeer = bmp_bgp_peer_get(peer); |
736 | bbdopp = bmp_bgp_peer_find(peer->doppelganger->qobj_node.nid); | |
737 | if (bbdopp) { | |
738 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_tx); | |
739 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_rx); | |
6c29258c | 740 | |
ed18356f DL |
741 | bbpeer->open_tx = bbdopp->open_tx; |
742 | bbpeer->open_tx_len = bbdopp->open_tx_len; | |
743 | bbpeer->open_rx = bbdopp->open_rx; | |
744 | bbpeer->open_rx_len = bbdopp->open_rx_len; | |
6c29258c | 745 | |
ed18356f DL |
746 | bmp_peerh_del(&bmp_peerh, bbdopp); |
747 | XFREE(MTYPE_BMP_PEER, bbdopp); | |
748 | } | |
6c29258c | 749 | } |
ed18356f DL |
750 | |
751 | bmp_send_all(bmpbgp, bmp_peerstate(peer, false)); | |
6c29258c YO |
752 | return 0; |
753 | } | |
754 | ||
ed18356f | 755 | static int bmp_peer_backward(struct peer *peer) |
6c29258c | 756 | { |
ed18356f DL |
757 | struct bmp_bgp *bmpbgp = bmp_bgp_find(peer->bgp); |
758 | struct bmp_bgp_peer *bbpeer; | |
6c29258c | 759 | |
e0302d7e QY |
760 | frrtrace(1, frr_bgp, bmp_peer_backward_transition, peer); |
761 | ||
ed18356f DL |
762 | if (!bmpbgp) |
763 | return 0; | |
6c29258c | 764 | |
ed18356f DL |
765 | bbpeer = bmp_bgp_peer_find(peer->qobj_node.nid); |
766 | if (bbpeer) { | |
767 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_tx); | |
768 | bbpeer->open_tx_len = 0; | |
769 | XFREE(MTYPE_BMP_OPEN, bbpeer->open_rx); | |
770 | bbpeer->open_rx_len = 0; | |
771 | } | |
6c29258c | 772 | |
ed18356f DL |
773 | bmp_send_all(bmpbgp, bmp_peerstate(peer, true)); |
774 | return 0; | |
775 | } | |
6c29258c | 776 | |
ed18356f DL |
777 | static void bmp_eor(struct bmp *bmp, afi_t afi, safi_t safi, uint8_t flags) |
778 | { | |
779 | struct peer *peer; | |
780 | struct listnode *node; | |
781 | struct stream *s, *s2; | |
617975d1 DS |
782 | iana_afi_t pkt_afi = IANA_AFI_IPV4; |
783 | iana_safi_t pkt_safi = IANA_SAFI_UNICAST; | |
6c29258c | 784 | |
e0302d7e QY |
785 | frrtrace(3, frr_bgp, bmp_eor, afi, safi, flags); |
786 | ||
ed18356f | 787 | s = stream_new(BGP_MAX_PACKET_SIZE); |
6c29258c | 788 | |
ed18356f DL |
789 | /* Make BGP update packet. */ |
790 | bgp_packet_set_marker(s, BGP_MSG_UPDATE); | |
6c29258c | 791 | |
ed18356f DL |
792 | /* Unfeasible Routes Length */ |
793 | stream_putw(s, 0); | |
6c29258c | 794 | |
ed18356f DL |
795 | if (afi == AFI_IP && safi == SAFI_UNICAST) { |
796 | /* Total Path Attribute Length */ | |
797 | stream_putw(s, 0); | |
798 | } else { | |
799 | /* Convert AFI, SAFI to values for packet. */ | |
800 | bgp_map_afi_safi_int2iana(afi, safi, &pkt_afi, &pkt_safi); | |
801 | ||
802 | /* Total Path Attribute Length */ | |
803 | stream_putw(s, 6); | |
804 | stream_putc(s, BGP_ATTR_FLAG_OPTIONAL); | |
805 | stream_putc(s, BGP_ATTR_MP_UNREACH_NLRI); | |
806 | stream_putc(s, 3); | |
807 | stream_putw(s, pkt_afi); | |
808 | stream_putc(s, pkt_safi); | |
6c29258c YO |
809 | } |
810 | ||
ed18356f | 811 | bgp_packet_set_size(s); |
6c29258c | 812 | |
ed18356f DL |
813 | for (ALL_LIST_ELEMENTS_RO(bmp->targets->bgp->peer, node, peer)) { |
814 | if (!peer->afc_nego[afi][safi]) | |
815 | continue; | |
6c29258c | 816 | |
ed18356f | 817 | s2 = stream_new(BGP_MAX_PACKET_SIZE); |
6c29258c | 818 | |
ed18356f DL |
819 | bmp_common_hdr(s2, BMP_VERSION_3, |
820 | BMP_TYPE_ROUTE_MONITORING); | |
821 | bmp_per_peer_hdr(s2, peer, flags, NULL); | |
6c29258c | 822 | |
ed18356f DL |
823 | stream_putl_at(s2, BMP_LENGTH_POS, |
824 | stream_get_endp(s) + stream_get_endp(s2)); | |
6c29258c | 825 | |
ed18356f DL |
826 | bmp->cnt_update++; |
827 | pullwr_write_stream(bmp->pullwr, s2); | |
828 | pullwr_write_stream(bmp->pullwr, s); | |
829 | stream_free(s2); | |
830 | } | |
831 | stream_free(s); | |
6c29258c YO |
832 | } |
833 | ||
87102aa0 | 834 | static struct stream *bmp_update(const struct prefix *p, struct prefix_rd *prd, |
835 | struct peer *peer, struct attr *attr, | |
836 | afi_t afi, safi_t safi) | |
6c29258c | 837 | { |
ed18356f DL |
838 | struct bpacket_attr_vec_arr vecarr; |
839 | struct stream *s; | |
840 | size_t attrlen_pos = 0, mpattrlen_pos = 0; | |
841 | bgp_size_t total_attr_len = 0; | |
842 | ||
843 | bpacket_attr_vec_arr_reset(&vecarr); | |
844 | ||
845 | s = stream_new(BGP_MAX_PACKET_SIZE); | |
846 | bgp_packet_set_marker(s, BGP_MSG_UPDATE); | |
847 | ||
848 | /* 2: withdrawn routes length */ | |
849 | stream_putw(s, 0); | |
850 | ||
851 | /* 3: total attributes length - attrlen_pos stores the position */ | |
852 | attrlen_pos = stream_get_endp(s); | |
853 | stream_putw(s, 0); | |
854 | ||
855 | /* 5: Encode all the attributes, except MP_REACH_NLRI attr. */ | |
856 | total_attr_len = bgp_packet_attribute(NULL, peer, s, attr, | |
857 | &vecarr, NULL, afi, safi, peer, NULL, NULL, 0, 0, 0); | |
6c29258c | 858 | |
ed18356f | 859 | /* space check? */ |
6c29258c | 860 | |
ed18356f DL |
861 | /* peer_cap_enhe & add-path removed */ |
862 | if (afi == AFI_IP && safi == SAFI_UNICAST) | |
863 | stream_put_prefix(s, p); | |
864 | else { | |
865 | size_t p1 = stream_get_endp(s); | |
6c29258c | 866 | |
ed18356f | 867 | /* MPLS removed for now */ |
6c29258c | 868 | |
ed18356f DL |
869 | mpattrlen_pos = bgp_packet_mpattr_start(s, peer, afi, safi, |
870 | &vecarr, attr); | |
87102aa0 | 871 | bgp_packet_mpattr_prefix(s, afi, safi, p, prd, NULL, 0, 0, 0, |
872 | attr); | |
ed18356f DL |
873 | bgp_packet_mpattr_end(s, mpattrlen_pos); |
874 | total_attr_len += stream_get_endp(s) - p1; | |
6c29258c YO |
875 | } |
876 | ||
ed18356f DL |
877 | /* set the total attribute length correctly */ |
878 | stream_putw_at(s, attrlen_pos, total_attr_len); | |
879 | bgp_packet_set_size(s); | |
880 | return s; | |
881 | } | |
6c29258c | 882 | |
87102aa0 | 883 | static struct stream *bmp_withdraw(const struct prefix *p, |
884 | struct prefix_rd *prd, afi_t afi, | |
5f040085 | 885 | safi_t safi) |
ed18356f DL |
886 | { |
887 | struct stream *s; | |
888 | size_t attrlen_pos = 0, mp_start, mplen_pos; | |
889 | bgp_size_t total_attr_len = 0; | |
890 | bgp_size_t unfeasible_len; | |
6c29258c | 891 | |
ed18356f | 892 | s = stream_new(BGP_MAX_PACKET_SIZE); |
6c29258c | 893 | |
ed18356f DL |
894 | bgp_packet_set_marker(s, BGP_MSG_UPDATE); |
895 | stream_putw(s, 0); | |
6c29258c | 896 | |
ed18356f DL |
897 | if (afi == AFI_IP && safi == SAFI_UNICAST) { |
898 | stream_put_prefix(s, p); | |
899 | unfeasible_len = stream_get_endp(s) - BGP_HEADER_SIZE | |
900 | - BGP_UNFEASIBLE_LEN; | |
901 | stream_putw_at(s, BGP_HEADER_SIZE, unfeasible_len); | |
902 | stream_putw(s, 0); | |
903 | } else { | |
904 | attrlen_pos = stream_get_endp(s); | |
905 | /* total attr length = 0 for now. reevaluate later */ | |
906 | stream_putw(s, 0); | |
907 | mp_start = stream_get_endp(s); | |
908 | mplen_pos = bgp_packet_mpunreach_start(s, afi, safi); | |
909 | ||
87102aa0 | 910 | bgp_packet_mpunreach_prefix(s, p, afi, safi, prd, NULL, 0, 0, 0, |
911 | NULL); | |
ed18356f DL |
912 | /* Set the mp_unreach attr's length */ |
913 | bgp_packet_mpunreach_end(s, mplen_pos); | |
914 | ||
915 | /* Set total path attribute length. */ | |
916 | total_attr_len = stream_get_endp(s) - mp_start; | |
917 | stream_putw_at(s, attrlen_pos, total_attr_len); | |
918 | } | |
919 | ||
920 | bgp_packet_set_size(s); | |
921 | return s; | |
922 | } | |
923 | ||
924 | static void bmp_monitor(struct bmp *bmp, struct peer *peer, uint8_t flags, | |
87102aa0 | 925 | const struct prefix *p, struct prefix_rd *prd, |
926 | struct attr *attr, afi_t afi, safi_t safi, | |
927 | time_t uptime) | |
ed18356f DL |
928 | { |
929 | struct stream *hdr, *msg; | |
930 | struct timeval tv = { .tv_sec = uptime, .tv_usec = 0 }; | |
02cee158 | 931 | struct timeval uptime_real; |
ed18356f | 932 | |
02cee158 | 933 | monotime_to_realtime(&tv, &uptime_real); |
ed18356f | 934 | if (attr) |
87102aa0 | 935 | msg = bmp_update(p, prd, peer, attr, afi, safi); |
ed18356f | 936 | else |
87102aa0 | 937 | msg = bmp_withdraw(p, prd, afi, safi); |
ed18356f DL |
938 | |
939 | hdr = stream_new(BGP_MAX_PACKET_SIZE); | |
940 | bmp_common_hdr(hdr, BMP_VERSION_3, BMP_TYPE_ROUTE_MONITORING); | |
02cee158 | 941 | bmp_per_peer_hdr(hdr, peer, flags, &uptime_real); |
ed18356f DL |
942 | |
943 | stream_putl_at(hdr, BMP_LENGTH_POS, | |
944 | stream_get_endp(hdr) + stream_get_endp(msg)); | |
945 | ||
946 | bmp->cnt_update++; | |
947 | pullwr_write_stream(bmp->pullwr, hdr); | |
948 | pullwr_write_stream(bmp->pullwr, msg); | |
949 | stream_free(hdr); | |
950 | stream_free(msg); | |
951 | } | |
952 | ||
953 | static bool bmp_wrsync(struct bmp *bmp, struct pullwr *pullwr) | |
954 | { | |
955 | afi_t afi; | |
956 | safi_t safi; | |
957 | ||
958 | if (bmp->syncafi == AFI_MAX) { | |
959 | FOREACH_AFI_SAFI (afi, safi) { | |
960 | if (bmp->afistate[afi][safi] != BMP_AFI_NEEDSYNC) | |
961 | continue; | |
962 | ||
963 | bmp->afistate[afi][safi] = BMP_AFI_SYNC; | |
964 | ||
965 | bmp->syncafi = afi; | |
966 | bmp->syncsafi = safi; | |
967 | bmp->syncpeerid = 0; | |
968 | memset(&bmp->syncpos, 0, sizeof(bmp->syncpos)); | |
969 | bmp->syncpos.family = afi2family(afi); | |
87102aa0 | 970 | bmp->syncrdpos = NULL; |
ed18356f DL |
971 | zlog_info("bmp[%s] %s %s sending table", |
972 | bmp->remote, | |
973 | afi2str(bmp->syncafi), | |
974 | safi2str(bmp->syncsafi)); | |
975 | /* break does not work here, 2 loops... */ | |
976 | goto afibreak; | |
6c29258c | 977 | } |
ed18356f DL |
978 | if (bmp->syncafi == AFI_MAX) |
979 | return false; | |
980 | } | |
6c29258c | 981 | |
ed18356f DL |
982 | afibreak: |
983 | afi = bmp->syncafi; | |
984 | safi = bmp->syncsafi; | |
985 | ||
986 | if (!bmp->targets->afimon[afi][safi]) { | |
987 | /* shouldn't happen */ | |
988 | bmp->afistate[afi][safi] = BMP_AFI_INACTIVE; | |
989 | bmp->syncafi = AFI_MAX; | |
990 | bmp->syncsafi = SAFI_MAX; | |
991 | return true; | |
992 | } | |
993 | ||
994 | struct bgp_table *table = bmp->targets->bgp->rib[afi][safi]; | |
a25ae82f | 995 | struct bgp_dest *bn = NULL; |
ed18356f DL |
996 | struct bgp_path_info *bpi = NULL, *bpiter; |
997 | struct bgp_adj_in *adjin = NULL, *adjiter; | |
998 | ||
5dde2965 FD |
999 | if ((afi == AFI_L2VPN && safi == SAFI_EVPN) || |
1000 | (safi == SAFI_MPLS_VPN)) { | |
87102aa0 | 1001 | /* initialize syncrdpos to the first |
1002 | * mid-layer table entry | |
1003 | */ | |
7b3a3805 | 1004 | if (!bmp->syncrdpos) { |
87102aa0 | 1005 | bmp->syncrdpos = bgp_table_top(table); |
7b3a3805 DS |
1006 | if (!bmp->syncrdpos) |
1007 | goto eor; | |
1008 | } | |
87102aa0 | 1009 | |
1010 | /* look for a valid mid-layer table */ | |
1011 | do { | |
1012 | table = bgp_dest_get_bgp_table_info(bmp->syncrdpos); | |
1013 | if (table) { | |
1014 | break; | |
1015 | } | |
1016 | bmp->syncrdpos = bgp_route_next(bmp->syncrdpos); | |
1017 | } while (bmp->syncrdpos); | |
1018 | ||
1019 | /* mid-layer table completed */ | |
1020 | if (!bmp->syncrdpos) | |
1021 | goto eor; | |
1022 | } | |
1023 | ||
ed18356f DL |
1024 | bn = bgp_node_lookup(table, &bmp->syncpos); |
1025 | do { | |
1026 | if (!bn) { | |
1027 | bn = bgp_table_get_next(table, &bmp->syncpos); | |
1028 | if (!bn) { | |
5dde2965 FD |
1029 | if ((afi == AFI_L2VPN && safi == SAFI_EVPN) || |
1030 | (safi == SAFI_MPLS_VPN)) { | |
87102aa0 | 1031 | /* reset bottom-layer pointer */ |
1032 | memset(&bmp->syncpos, 0, | |
1033 | sizeof(bmp->syncpos)); | |
1034 | bmp->syncpos.family = afi2family(afi); | |
1035 | /* check whethere there is a valid | |
1036 | * next mid-layer table, otherwise | |
1037 | * declare table completed (eor) | |
1038 | */ | |
1039 | for (bmp->syncrdpos = bgp_route_next( | |
1040 | bmp->syncrdpos); | |
1041 | bmp->syncrdpos; | |
1042 | bmp->syncrdpos = bgp_route_next( | |
1043 | bmp->syncrdpos)) | |
1044 | if (bgp_dest_get_bgp_table_info( | |
1045 | bmp->syncrdpos)) | |
1046 | return true; | |
1047 | } | |
1048 | eor: | |
ed18356f DL |
1049 | zlog_info("bmp[%s] %s %s table completed (EoR)", |
1050 | bmp->remote, afi2str(afi), | |
1051 | safi2str(safi)); | |
1052 | bmp_eor(bmp, afi, safi, BMP_PEER_FLAG_L); | |
1053 | bmp_eor(bmp, afi, safi, 0); | |
1054 | ||
1055 | bmp->afistate[afi][safi] = BMP_AFI_LIVE; | |
1056 | bmp->syncafi = AFI_MAX; | |
1057 | bmp->syncsafi = SAFI_MAX; | |
1058 | return true; | |
1059 | } | |
1060 | bmp->syncpeerid = 0; | |
9bcb3eef | 1061 | prefix_copy(&bmp->syncpos, bgp_dest_get_prefix(bn)); |
6c29258c YO |
1062 | } |
1063 | ||
ed18356f | 1064 | if (bmp->targets->afimon[afi][safi] & BMP_MON_POSTPOLICY) { |
87102aa0 | 1065 | for (bpiter = bgp_dest_get_bgp_path_info(bn); bpiter; |
1066 | bpiter = bpiter->next) { | |
ed18356f DL |
1067 | if (!CHECK_FLAG(bpiter->flags, BGP_PATH_VALID)) |
1068 | continue; | |
1069 | if (bpiter->peer->qobj_node.nid | |
1070 | <= bmp->syncpeerid) | |
1071 | continue; | |
1072 | if (bpi && bpiter->peer->qobj_node.nid | |
1073 | > bpi->peer->qobj_node.nid) | |
1074 | continue; | |
1075 | bpi = bpiter; | |
1076 | } | |
1077 | } | |
1078 | if (bmp->targets->afimon[afi][safi] & BMP_MON_PREPOLICY) { | |
1079 | for (adjiter = bn->adj_in; adjiter; | |
1080 | adjiter = adjiter->next) { | |
1081 | if (adjiter->peer->qobj_node.nid | |
1082 | <= bmp->syncpeerid) | |
1083 | continue; | |
1084 | if (adjin && adjiter->peer->qobj_node.nid | |
1085 | > adjin->peer->qobj_node.nid) | |
1086 | continue; | |
1087 | adjin = adjiter; | |
1088 | } | |
1089 | } | |
1090 | if (bpi || adjin) | |
1091 | break; | |
1092 | ||
1093 | bn = NULL; | |
1094 | } while (1); | |
1095 | ||
1096 | if (adjin && bpi | |
1097 | && adjin->peer->qobj_node.nid < bpi->peer->qobj_node.nid) { | |
1098 | bpi = NULL; | |
1099 | bmp->syncpeerid = adjin->peer->qobj_node.nid; | |
1100 | } else if (adjin && bpi | |
1101 | && adjin->peer->qobj_node.nid > bpi->peer->qobj_node.nid) { | |
1102 | adjin = NULL; | |
1103 | bmp->syncpeerid = bpi->peer->qobj_node.nid; | |
1104 | } else if (bpi) { | |
1105 | bmp->syncpeerid = bpi->peer->qobj_node.nid; | |
1106 | } else if (adjin) { | |
1107 | bmp->syncpeerid = adjin->peer->qobj_node.nid; | |
1108 | } | |
6c29258c | 1109 | |
9bcb3eef | 1110 | const struct prefix *bn_p = bgp_dest_get_prefix(bn); |
87102aa0 | 1111 | struct prefix_rd *prd = NULL; |
5dde2965 FD |
1112 | if (((afi == AFI_L2VPN) && (safi == SAFI_EVPN)) || |
1113 | (safi == SAFI_MPLS_VPN)) | |
87102aa0 | 1114 | prd = (struct prefix_rd *)bgp_dest_get_prefix(bmp->syncrdpos); |
b54892e0 | 1115 | |
ed18356f | 1116 | if (bpi) |
87102aa0 | 1117 | bmp_monitor(bmp, bpi->peer, BMP_PEER_FLAG_L, bn_p, prd, |
1118 | bpi->attr, afi, safi, bpi->uptime); | |
ed18356f | 1119 | if (adjin) |
87102aa0 | 1120 | bmp_monitor(bmp, adjin->peer, 0, bn_p, prd, adjin->attr, afi, |
1121 | safi, adjin->uptime); | |
6c29258c | 1122 | |
a25ae82f DA |
1123 | if (bn) |
1124 | bgp_dest_unlock_node(bn); | |
1125 | ||
ed18356f | 1126 | return true; |
6c29258c YO |
1127 | } |
1128 | ||
ed18356f | 1129 | static struct bmp_queue_entry *bmp_pull(struct bmp *bmp) |
6c29258c | 1130 | { |
ed18356f DL |
1131 | struct bmp_queue_entry *bqe; |
1132 | ||
1133 | bqe = bmp->queuepos; | |
1134 | if (!bqe) | |
1135 | return NULL; | |
1136 | ||
1137 | bmp->queuepos = bmp_qlist_next(&bmp->targets->updlist, bqe); | |
1138 | ||
1139 | bqe->refcount--; | |
1140 | if (!bqe->refcount) { | |
1141 | bmp_qhash_del(&bmp->targets->updhash, bqe); | |
1142 | bmp_qlist_del(&bmp->targets->updlist, bqe); | |
1143 | } | |
1144 | return bqe; | |
1145 | } | |
1146 | ||
1147 | static bool bmp_wrqueue(struct bmp *bmp, struct pullwr *pullwr) | |
1148 | { | |
1149 | struct bmp_queue_entry *bqe; | |
1150 | struct peer *peer; | |
a25ae82f | 1151 | struct bgp_dest *bn = NULL; |
ed18356f DL |
1152 | bool written = false; |
1153 | ||
1154 | bqe = bmp_pull(bmp); | |
1155 | if (!bqe) | |
1156 | return false; | |
1157 | ||
1158 | afi_t afi = bqe->afi; | |
1159 | safi_t safi = bqe->safi; | |
1160 | ||
1161 | switch (bmp->afistate[afi][safi]) { | |
1162 | case BMP_AFI_INACTIVE: | |
1163 | case BMP_AFI_NEEDSYNC: | |
1164 | goto out; | |
1165 | case BMP_AFI_SYNC: | |
1166 | if (prefix_cmp(&bqe->p, &bmp->syncpos) <= 0) | |
1167 | /* currently syncing but have already passed this | |
1168 | * prefix => send it. */ | |
1169 | break; | |
1170 | ||
1171 | /* currently syncing & haven't reached this prefix yet | |
1172 | * => it'll be sent as part of the table sync, no need here */ | |
1173 | goto out; | |
1174 | case BMP_AFI_LIVE: | |
1175 | break; | |
1176 | } | |
1177 | ||
1178 | peer = QOBJ_GET_TYPESAFE(bqe->peerid, peer); | |
1179 | if (!peer) { | |
1180 | zlog_info("bmp: skipping queued item for deleted peer"); | |
1181 | goto out; | |
1182 | } | |
feb17238 | 1183 | if (!peer_established(peer)) |
ed18356f DL |
1184 | goto out; |
1185 | ||
e7e1561f | 1186 | bool is_vpn = (bqe->afi == AFI_L2VPN && bqe->safi == SAFI_EVPN) || |
1187 | (bqe->safi == SAFI_MPLS_VPN); | |
1188 | ||
1189 | struct prefix_rd *prd = is_vpn ? &bqe->rd : NULL; | |
1190 | bn = bgp_afi_node_lookup(bmp->targets->bgp->rib[afi][safi], afi, safi, | |
1191 | &bqe->p, prd); | |
1192 | ||
ed18356f DL |
1193 | |
1194 | if (bmp->targets->afimon[afi][safi] & BMP_MON_POSTPOLICY) { | |
1195 | struct bgp_path_info *bpi; | |
1196 | ||
87102aa0 | 1197 | for (bpi = bn ? bgp_dest_get_bgp_path_info(bn) : NULL; bpi; |
1198 | bpi = bpi->next) { | |
ed18356f DL |
1199 | if (!CHECK_FLAG(bpi->flags, BGP_PATH_VALID)) |
1200 | continue; | |
1201 | if (bpi->peer == peer) | |
1202 | break; | |
1203 | } | |
1204 | ||
87102aa0 | 1205 | bmp_monitor(bmp, peer, BMP_PEER_FLAG_L, &bqe->p, prd, |
ed18356f DL |
1206 | bpi ? bpi->attr : NULL, afi, safi, |
1207 | bpi ? bpi->uptime : monotime(NULL)); | |
1208 | written = true; | |
1209 | } | |
1210 | ||
1211 | if (bmp->targets->afimon[afi][safi] & BMP_MON_PREPOLICY) { | |
1212 | struct bgp_adj_in *adjin; | |
1213 | ||
1214 | for (adjin = bn ? bn->adj_in : NULL; adjin; | |
1215 | adjin = adjin->next) { | |
1216 | if (adjin->peer == peer) | |
1217 | break; | |
1218 | } | |
4ab8edec | 1219 | bmp_monitor(bmp, peer, 0, &bqe->p, prd, |
ed18356f DL |
1220 | adjin ? adjin->attr : NULL, afi, safi, |
1221 | adjin ? adjin->uptime : monotime(NULL)); | |
1222 | written = true; | |
1223 | } | |
1224 | ||
1225 | out: | |
1226 | if (!bqe->refcount) | |
1227 | XFREE(MTYPE_BMP_QUEUE, bqe); | |
a25ae82f DA |
1228 | |
1229 | if (bn) | |
1230 | bgp_dest_unlock_node(bn); | |
1231 | ||
ed18356f DL |
1232 | return written; |
1233 | } | |
1234 | ||
1235 | static void bmp_wrfill(struct bmp *bmp, struct pullwr *pullwr) | |
1236 | { | |
1237 | switch(bmp->state) { | |
1238 | case BMP_PeerUp: | |
1239 | bmp_send_peerup(bmp); | |
1240 | bmp->state = BMP_Run; | |
1241 | break; | |
1242 | ||
1243 | case BMP_Run: | |
1244 | if (bmp_wrmirror(bmp, pullwr)) | |
1245 | break; | |
1246 | if (bmp_wrqueue(bmp, pullwr)) | |
1247 | break; | |
1248 | if (bmp_wrsync(bmp, pullwr)) | |
1249 | break; | |
1250 | break; | |
1251 | } | |
1252 | } | |
1253 | ||
1254 | static void bmp_wrerr(struct bmp *bmp, struct pullwr *pullwr, bool eof) | |
1255 | { | |
1256 | if (eof) | |
1257 | zlog_info("bmp[%s] disconnected", bmp->remote); | |
1258 | else | |
1259 | flog_warn(EC_LIB_SYSTEM_CALL, "bmp[%s] connection error: %s", | |
1260 | bmp->remote, strerror(errno)); | |
1261 | ||
1262 | bmp_close(bmp); | |
1263 | bmp_free(bmp); | |
1264 | } | |
1265 | ||
9bcb3eef DS |
1266 | static void bmp_process_one(struct bmp_targets *bt, struct bgp *bgp, afi_t afi, |
1267 | safi_t safi, struct bgp_dest *bn, struct peer *peer) | |
ed18356f DL |
1268 | { |
1269 | struct bmp *bmp; | |
1270 | struct bmp_queue_entry *bqe, bqeref; | |
1271 | size_t refcount; | |
ed18356f DL |
1272 | |
1273 | refcount = bmp_session_count(&bt->sessions); | |
1274 | if (refcount == 0) | |
1275 | return; | |
1276 | ||
1277 | memset(&bqeref, 0, sizeof(bqeref)); | |
9bcb3eef | 1278 | prefix_copy(&bqeref.p, bgp_dest_get_prefix(bn)); |
ed18356f DL |
1279 | bqeref.peerid = peer->qobj_node.nid; |
1280 | bqeref.afi = afi; | |
1281 | bqeref.safi = safi; | |
1282 | ||
5dde2965 FD |
1283 | if ((afi == AFI_L2VPN && safi == SAFI_EVPN && bn->pdest) || |
1284 | (safi == SAFI_MPLS_VPN)) | |
87102aa0 | 1285 | prefix_copy(&bqeref.rd, |
1286 | (struct prefix_rd *)bgp_dest_get_prefix(bn->pdest)); | |
1287 | ||
ed18356f DL |
1288 | bqe = bmp_qhash_find(&bt->updhash, &bqeref); |
1289 | if (bqe) { | |
1290 | if (bqe->refcount >= refcount) | |
1291 | /* nothing to do here */ | |
1292 | return; | |
1293 | ||
1294 | bmp_qlist_del(&bt->updlist, bqe); | |
1295 | } else { | |
1296 | bqe = XMALLOC(MTYPE_BMP_QUEUE, sizeof(*bqe)); | |
1297 | memcpy(bqe, &bqeref, sizeof(*bqe)); | |
1298 | ||
1299 | bmp_qhash_add(&bt->updhash, bqe); | |
1300 | } | |
1301 | ||
1302 | bqe->refcount = refcount; | |
1303 | bmp_qlist_add_tail(&bt->updlist, bqe); | |
1304 | ||
1305 | frr_each (bmp_session, &bt->sessions, bmp) | |
1306 | if (!bmp->queuepos) | |
1307 | bmp->queuepos = bqe; | |
1308 | } | |
1309 | ||
1310 | static int bmp_process(struct bgp *bgp, afi_t afi, safi_t safi, | |
9bcb3eef | 1311 | struct bgp_dest *bn, struct peer *peer, bool withdraw) |
ed18356f DL |
1312 | { |
1313 | struct bmp_bgp *bmpbgp = bmp_bgp_find(peer->bgp); | |
1314 | struct bmp_targets *bt; | |
1315 | struct bmp *bmp; | |
1316 | ||
e0302d7e QY |
1317 | if (frrtrace_enabled(frr_bgp, bmp_process)) { |
1318 | char pfxprint[PREFIX2STR_BUFFER]; | |
1319 | ||
1320 | prefix2str(&bn->p, pfxprint, sizeof(pfxprint)); | |
1321 | frrtrace(5, frr_bgp, bmp_process, peer, pfxprint, afi, safi, | |
1322 | withdraw); | |
1323 | } | |
1324 | ||
ed18356f DL |
1325 | if (!bmpbgp) |
1326 | return 0; | |
1327 | ||
1328 | frr_each(bmp_targets, &bmpbgp->targets, bt) { | |
1329 | if (!bt->afimon[afi][safi]) | |
1330 | continue; | |
1331 | ||
1332 | bmp_process_one(bt, bgp, afi, safi, bn, peer); | |
1333 | ||
1334 | frr_each(bmp_session, &bt->sessions, bmp) { | |
1335 | pullwr_bump(bmp->pullwr); | |
1336 | } | |
1337 | } | |
1338 | return 0; | |
1339 | } | |
1340 | ||
1341 | static void bmp_stat_put_u32(struct stream *s, size_t *cnt, uint16_t type, | |
1342 | uint32_t value) | |
1343 | { | |
1344 | stream_putw(s, type); | |
1345 | stream_putw(s, 4); | |
1346 | stream_putl(s, value); | |
1347 | (*cnt)++; | |
1348 | } | |
1349 | ||
cc9f21da | 1350 | static void bmp_stats(struct thread *thread) |
ed18356f DL |
1351 | { |
1352 | struct bmp_targets *bt = THREAD_ARG(thread); | |
1353 | struct stream *s; | |
1354 | struct peer *peer; | |
1355 | struct listnode *node; | |
1356 | struct timeval tv; | |
1357 | ||
1358 | if (bt->stat_msec) | |
1359 | thread_add_timer_msec(bm->master, bmp_stats, bt, bt->stat_msec, | |
1360 | &bt->t_stats); | |
1361 | ||
1362 | gettimeofday(&tv, NULL); | |
1363 | ||
1364 | /* Walk down all peers */ | |
1365 | for (ALL_LIST_ELEMENTS_RO(bt->bgp->peer, node, peer)) { | |
1366 | size_t count = 0, count_pos, len; | |
1367 | ||
feb17238 | 1368 | if (!peer_established(peer)) |
ed18356f DL |
1369 | continue; |
1370 | ||
1371 | s = stream_new(BGP_MAX_PACKET_SIZE); | |
1372 | bmp_common_hdr(s, BMP_VERSION_3, BMP_TYPE_STATISTICS_REPORT); | |
1373 | bmp_per_peer_hdr(s, peer, 0, &tv); | |
1374 | ||
1375 | count_pos = stream_get_endp(s); | |
1376 | stream_putl(s, 0); | |
1377 | ||
1378 | bmp_stat_put_u32(s, &count, BMP_STATS_PFX_REJECTED, | |
1379 | peer->stat_pfx_filter); | |
1380 | bmp_stat_put_u32(s, &count, BMP_STATS_UPD_LOOP_ASPATH, | |
1381 | peer->stat_pfx_aspath_loop); | |
1382 | bmp_stat_put_u32(s, &count, BMP_STATS_UPD_LOOP_ORIGINATOR, | |
1383 | peer->stat_pfx_originator_loop); | |
1384 | bmp_stat_put_u32(s, &count, BMP_STATS_UPD_LOOP_CLUSTER, | |
1385 | peer->stat_pfx_cluster_loop); | |
1386 | bmp_stat_put_u32(s, &count, BMP_STATS_PFX_DUP_WITHDRAW, | |
1387 | peer->stat_pfx_dup_withdraw); | |
1388 | bmp_stat_put_u32(s, &count, BMP_STATS_UPD_7606_WITHDRAW, | |
1389 | peer->stat_upd_7606); | |
1390 | bmp_stat_put_u32(s, &count, BMP_STATS_FRR_NH_INVALID, | |
1391 | peer->stat_pfx_nh_invalid); | |
1392 | ||
1393 | stream_putl_at(s, count_pos, count); | |
1394 | ||
1395 | len = stream_get_endp(s); | |
1396 | stream_putl_at(s, BMP_LENGTH_POS, len); | |
1397 | ||
1398 | bmp_send_all(bt->bmpbgp, s); | |
1399 | } | |
ed18356f DL |
1400 | } |
1401 | ||
8252b477 | 1402 | /* read from the BMP socket to detect session termination */ |
cc9f21da | 1403 | static void bmp_read(struct thread *t) |
8252b477 AL |
1404 | { |
1405 | struct bmp *bmp = THREAD_ARG(t); | |
1406 | char buf[1024]; | |
1407 | ssize_t n; | |
1408 | ||
1409 | bmp->t_read = NULL; | |
1410 | ||
1411 | n = read(bmp->socket, buf, sizeof(buf)); | |
1412 | if (n >= 1) { | |
1413 | zlog_info("bmp[%s]: unexpectedly received %zu bytes", bmp->remote, n); | |
1414 | } else if (n == 0) { | |
1415 | /* the TCP session was terminated by the far end */ | |
1416 | bmp_wrerr(bmp, NULL, true); | |
cc9f21da | 1417 | return; |
8252b477 AL |
1418 | } else if (!(errno == EAGAIN || errno == EWOULDBLOCK || errno == EINTR)) { |
1419 | /* the TCP session experienced a fatal error, likely a timeout */ | |
1420 | bmp_wrerr(bmp, NULL, false); | |
cc9f21da | 1421 | return; |
8252b477 AL |
1422 | } |
1423 | ||
1424 | thread_add_read(bm->master, bmp_read, bmp, bmp->socket, &bmp->t_read); | |
8252b477 AL |
1425 | } |
1426 | ||
ed18356f DL |
1427 | static struct bmp *bmp_open(struct bmp_targets *bt, int bmp_sock) |
1428 | { | |
1429 | union sockunion su, *sumem; | |
1430 | struct prefix p; | |
1431 | int on = 1; | |
1432 | struct access_list *acl = NULL; | |
1433 | enum filter_type ret; | |
1434 | char buf[SU_ADDRSTRLEN]; | |
1435 | struct bmp *bmp; | |
1436 | ||
1437 | sumem = sockunion_getpeername(bmp_sock); | |
1438 | if (!sumem) { | |
1439 | close(bmp_sock); | |
1440 | return NULL; | |
1441 | } | |
1442 | memcpy(&su, sumem, sizeof(su)); | |
1443 | sockunion_free(sumem); | |
1444 | ||
1445 | set_nonblocking(bmp_sock); | |
1446 | set_cloexec(bmp_sock); | |
ed18356f | 1447 | |
0154d8ce DS |
1448 | if (!sockunion2hostprefix(&su, &p)) { |
1449 | close(bmp_sock); | |
1450 | return NULL; | |
1451 | } | |
ed18356f DL |
1452 | |
1453 | acl = NULL; | |
1454 | switch (p.family) { | |
1455 | case AF_INET: | |
1456 | acl = access_list_lookup(AFI_IP, bt->acl_name); | |
1457 | break; | |
1458 | case AF_INET6: | |
1459 | acl = access_list_lookup(AFI_IP6, bt->acl6_name); | |
1460 | break; | |
1461 | default: | |
1462 | break; | |
1463 | } | |
1464 | ||
1465 | ret = FILTER_PERMIT; | |
1466 | if (acl) { | |
1467 | ret = access_list_apply(acl, &p); | |
1468 | } | |
1469 | ||
1470 | sockunion2str(&su, buf, SU_ADDRSTRLEN); | |
1471 | snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), ":%u", | |
1472 | su.sa.sa_family == AF_INET | |
1473 | ? ntohs(su.sin.sin_port) | |
1474 | : ntohs(su.sin6.sin6_port)); | |
1475 | ||
1476 | if (ret == FILTER_DENY) { | |
1477 | bt->cnt_aclrefused++; | |
1478 | zlog_info("bmp[%s] connection refused by access-list", buf); | |
1479 | close(bmp_sock); | |
1480 | return NULL; | |
1481 | } | |
1482 | bt->cnt_accept++; | |
1483 | ||
d38c6bb1 DS |
1484 | if (setsockopt(bmp_sock, SOL_SOCKET, SO_KEEPALIVE, &on, sizeof(on)) < 0) |
1485 | flog_err(EC_LIB_SOCKET, "bmp: %d can't setsockopt SO_KEEPALIVE: %s(%d)", | |
1486 | bmp_sock, safe_strerror(errno), errno); | |
1487 | if (setsockopt(bmp_sock, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on)) < 0) | |
1488 | flog_err(EC_LIB_SOCKET, "bmp: %d can't setsockopt TCP_NODELAY: %s(%d)", | |
1489 | bmp_sock, safe_strerror(errno), errno); | |
ed18356f DL |
1490 | |
1491 | zlog_info("bmp[%s] connection established", buf); | |
1492 | ||
1493 | /* Allocate new BMP structure and set up default values. */ | |
1494 | bmp = bmp_new(bt, bmp_sock); | |
1495 | strlcpy(bmp->remote, buf, sizeof(bmp->remote)); | |
1496 | ||
1497 | bmp->state = BMP_PeerUp; | |
1498 | bmp->pullwr = pullwr_new(bm->master, bmp_sock, bmp, bmp_wrfill, | |
1499 | bmp_wrerr); | |
8252b477 | 1500 | thread_add_read(bm->master, bmp_read, bmp, bmp_sock, &bmp->t_read); |
ed18356f DL |
1501 | bmp_send_initiation(bmp); |
1502 | ||
1503 | return bmp; | |
1504 | } | |
1505 | ||
1506 | /* Accept BMP connection. */ | |
cc9f21da | 1507 | static void bmp_accept(struct thread *thread) |
ed18356f DL |
1508 | { |
1509 | union sockunion su; | |
1510 | struct bmp_listener *bl = THREAD_ARG(thread); | |
1511 | int bmp_sock; | |
1512 | ||
1513 | /* We continue hearing BMP socket. */ | |
1514 | thread_add_read(bm->master, bmp_accept, bl, bl->sock, &bl->t_accept); | |
1515 | ||
1516 | memset(&su, 0, sizeof(union sockunion)); | |
1517 | ||
1518 | /* We can handle IPv4 or IPv6 socket. */ | |
1519 | bmp_sock = sockunion_accept(bl->sock, &su); | |
1520 | if (bmp_sock < 0) { | |
63efca0e | 1521 | zlog_info("bmp: accept_sock failed: %s", safe_strerror(errno)); |
cc9f21da | 1522 | return; |
ed18356f DL |
1523 | } |
1524 | bmp_open(bl->targets, bmp_sock); | |
ed18356f DL |
1525 | } |
1526 | ||
1527 | static void bmp_close(struct bmp *bmp) | |
1528 | { | |
1529 | struct bmp_queue_entry *bqe; | |
1530 | struct bmp_mirrorq *bmq; | |
1531 | ||
8252b477 AL |
1532 | THREAD_OFF(bmp->t_read); |
1533 | ||
ed18356f DL |
1534 | if (bmp->active) |
1535 | bmp_active_disconnected(bmp->active); | |
1536 | ||
1537 | while ((bmq = bmp_pull_mirror(bmp))) | |
1538 | if (!bmq->refcount) | |
1539 | XFREE(MTYPE_BMP_MIRRORQ, bmq); | |
1540 | while ((bqe = bmp_pull(bmp))) | |
1541 | if (!bqe->refcount) | |
1542 | XFREE(MTYPE_BMP_QUEUE, bqe); | |
1543 | ||
1544 | THREAD_OFF(bmp->t_read); | |
1545 | pullwr_del(bmp->pullwr); | |
1546 | close(bmp->socket); | |
1547 | } | |
1548 | ||
1549 | static struct bmp_bgp *bmp_bgp_find(struct bgp *bgp) | |
1550 | { | |
1551 | struct bmp_bgp dummy = { .bgp = bgp }; | |
1552 | return bmp_bgph_find(&bmp_bgph, &dummy); | |
1553 | } | |
1554 | ||
1555 | static struct bmp_bgp *bmp_bgp_get(struct bgp *bgp) | |
1556 | { | |
1557 | struct bmp_bgp *bmpbgp; | |
1558 | ||
1559 | bmpbgp = bmp_bgp_find(bgp); | |
1560 | if (bmpbgp) | |
1561 | return bmpbgp; | |
1562 | ||
1563 | bmpbgp = XCALLOC(MTYPE_BMP, sizeof(*bmpbgp)); | |
1564 | bmpbgp->bgp = bgp; | |
1565 | bmpbgp->mirror_qsizelimit = ~0UL; | |
1566 | bmp_mirrorq_init(&bmpbgp->mirrorq); | |
1567 | bmp_bgph_add(&bmp_bgph, bmpbgp); | |
1568 | ||
1569 | return bmpbgp; | |
1570 | } | |
1571 | ||
1572 | static void bmp_bgp_put(struct bmp_bgp *bmpbgp) | |
1573 | { | |
1574 | struct bmp_targets *bt; | |
5cb3a153 | 1575 | struct bmp_listener *bl; |
ed18356f DL |
1576 | |
1577 | bmp_bgph_del(&bmp_bgph, bmpbgp); | |
1578 | ||
5cb3a153 DA |
1579 | frr_each_safe (bmp_targets, &bmpbgp->targets, bt) { |
1580 | frr_each_safe (bmp_listeners, &bt->listeners, bl) | |
1581 | bmp_listener_put(bl); | |
1582 | ||
ed18356f | 1583 | bmp_targets_put(bt); |
5cb3a153 | 1584 | } |
ed18356f DL |
1585 | |
1586 | bmp_mirrorq_fini(&bmpbgp->mirrorq); | |
1587 | XFREE(MTYPE_BMP, bmpbgp); | |
1588 | } | |
1589 | ||
1590 | static int bmp_bgp_del(struct bgp *bgp) | |
1591 | { | |
1592 | struct bmp_bgp *bmpbgp = bmp_bgp_find(bgp); | |
1593 | ||
1594 | if (bmpbgp) | |
1595 | bmp_bgp_put(bmpbgp); | |
1596 | return 0; | |
1597 | } | |
1598 | ||
1599 | static struct bmp_bgp_peer *bmp_bgp_peer_find(uint64_t peerid) | |
1600 | { | |
1601 | struct bmp_bgp_peer dummy = { .peerid = peerid }; | |
1602 | return bmp_peerh_find(&bmp_peerh, &dummy); | |
1603 | } | |
1604 | ||
1605 | static struct bmp_bgp_peer *bmp_bgp_peer_get(struct peer *peer) | |
1606 | { | |
1607 | struct bmp_bgp_peer *bbpeer; | |
1608 | ||
1609 | bbpeer = bmp_bgp_peer_find(peer->qobj_node.nid); | |
1610 | if (bbpeer) | |
1611 | return bbpeer; | |
1612 | ||
1613 | bbpeer = XCALLOC(MTYPE_BMP_PEER, sizeof(*bbpeer)); | |
1614 | bbpeer->peerid = peer->qobj_node.nid; | |
1615 | bmp_peerh_add(&bmp_peerh, bbpeer); | |
1616 | ||
1617 | return bbpeer; | |
1618 | } | |
1619 | ||
1620 | static struct bmp_targets *bmp_targets_find1(struct bgp *bgp, const char *name) | |
1621 | { | |
1622 | struct bmp_bgp *bmpbgp = bmp_bgp_find(bgp); | |
1623 | struct bmp_targets dummy; | |
1624 | ||
1625 | if (!bmpbgp) | |
1626 | return NULL; | |
1627 | dummy.name = (char *)name; | |
1628 | return bmp_targets_find(&bmpbgp->targets, &dummy); | |
1629 | } | |
1630 | ||
1631 | static struct bmp_targets *bmp_targets_get(struct bgp *bgp, const char *name) | |
1632 | { | |
1633 | struct bmp_targets *bt; | |
1634 | ||
1635 | bt = bmp_targets_find1(bgp, name); | |
1636 | if (bt) | |
1637 | return bt; | |
1638 | ||
1639 | bt = XCALLOC(MTYPE_BMP_TARGETS, sizeof(*bt)); | |
1640 | bt->name = XSTRDUP(MTYPE_BMP_TARGETSNAME, name); | |
1641 | bt->bgp = bgp; | |
1642 | bt->bmpbgp = bmp_bgp_get(bgp); | |
1643 | bmp_session_init(&bt->sessions); | |
1644 | bmp_qhash_init(&bt->updhash); | |
1645 | bmp_qlist_init(&bt->updlist); | |
1646 | bmp_actives_init(&bt->actives); | |
1647 | bmp_listeners_init(&bt->listeners); | |
1648 | ||
1649 | QOBJ_REG(bt, bmp_targets); | |
1650 | bmp_targets_add(&bt->bmpbgp->targets, bt); | |
1651 | return bt; | |
1652 | } | |
1653 | ||
1654 | static void bmp_targets_put(struct bmp_targets *bt) | |
1655 | { | |
1656 | struct bmp *bmp; | |
1657 | struct bmp_active *ba; | |
1658 | ||
4008aa1a DA |
1659 | THREAD_OFF(bt->t_stats); |
1660 | ||
ed18356f DL |
1661 | frr_each_safe (bmp_actives, &bt->actives, ba) |
1662 | bmp_active_put(ba); | |
1663 | ||
1664 | frr_each_safe(bmp_session, &bt->sessions, bmp) { | |
1665 | bmp_close(bmp); | |
1666 | bmp_free(bmp); | |
1667 | } | |
1668 | ||
1669 | bmp_targets_del(&bt->bmpbgp->targets, bt); | |
1670 | QOBJ_UNREG(bt); | |
1671 | ||
1672 | bmp_listeners_fini(&bt->listeners); | |
1673 | bmp_actives_fini(&bt->actives); | |
1674 | bmp_qhash_fini(&bt->updhash); | |
1675 | bmp_qlist_fini(&bt->updlist); | |
1676 | ||
1677 | XFREE(MTYPE_BMP_ACLNAME, bt->acl_name); | |
1678 | XFREE(MTYPE_BMP_ACLNAME, bt->acl6_name); | |
1679 | bmp_session_fini(&bt->sessions); | |
1680 | ||
1681 | XFREE(MTYPE_BMP_TARGETSNAME, bt->name); | |
1682 | XFREE(MTYPE_BMP_TARGETS, bt); | |
1683 | } | |
1684 | ||
1685 | static struct bmp_listener *bmp_listener_find(struct bmp_targets *bt, | |
1686 | const union sockunion *su, | |
1687 | int port) | |
1688 | { | |
1689 | struct bmp_listener dummy; | |
1690 | dummy.addr = *su; | |
1691 | dummy.port = port; | |
1692 | return bmp_listeners_find(&bt->listeners, &dummy); | |
1693 | } | |
1694 | ||
1695 | static struct bmp_listener *bmp_listener_get(struct bmp_targets *bt, | |
1696 | const union sockunion *su, | |
1697 | int port) | |
1698 | { | |
1699 | struct bmp_listener *bl = bmp_listener_find(bt, su, port); | |
1700 | ||
1701 | if (bl) | |
1702 | return bl; | |
1703 | ||
1704 | bl = XCALLOC(MTYPE_BMP_LISTENER, sizeof(*bl)); | |
1705 | bl->targets = bt; | |
1706 | bl->addr = *su; | |
1707 | bl->port = port; | |
1708 | bl->sock = -1; | |
1709 | ||
1710 | bmp_listeners_add(&bt->listeners, bl); | |
1711 | return bl; | |
1712 | } | |
1713 | ||
ed18356f DL |
1714 | static void bmp_listener_start(struct bmp_listener *bl) |
1715 | { | |
1716 | int sock, ret; | |
1717 | ||
1718 | sock = socket(bl->addr.sa.sa_family, SOCK_STREAM, 0); | |
1719 | if (sock < 0) | |
1720 | return; | |
1721 | ||
1722 | sockopt_reuseaddr(sock); | |
1723 | sockopt_reuseport(sock); | |
1724 | sockopt_v6only(bl->addr.sa.sa_family, sock); | |
1725 | set_cloexec(sock); | |
1726 | ||
1727 | ret = sockunion_bind(sock, &bl->addr, bl->port, &bl->addr); | |
1728 | if (ret < 0) | |
1729 | goto out_sock; | |
1730 | ||
1731 | ret = listen(sock, 3); | |
1732 | if (ret < 0) | |
1733 | goto out_sock; | |
1734 | ||
1735 | bl->sock = sock; | |
1736 | thread_add_read(bm->master, bmp_accept, bl, sock, &bl->t_accept); | |
1737 | return; | |
1738 | out_sock: | |
1739 | close(sock); | |
1740 | } | |
1741 | ||
1742 | static void bmp_listener_stop(struct bmp_listener *bl) | |
1743 | { | |
1744 | THREAD_OFF(bl->t_accept); | |
1745 | ||
1746 | if (bl->sock != -1) | |
1747 | close(bl->sock); | |
1748 | bl->sock = -1; | |
1749 | } | |
1750 | ||
1751 | static struct bmp_active *bmp_active_find(struct bmp_targets *bt, | |
1752 | const char *hostname, int port) | |
1753 | { | |
1754 | struct bmp_active dummy; | |
1755 | dummy.hostname = (char *)hostname; | |
1756 | dummy.port = port; | |
1757 | return bmp_actives_find(&bt->actives, &dummy); | |
1758 | } | |
1759 | ||
1760 | static struct bmp_active *bmp_active_get(struct bmp_targets *bt, | |
1761 | const char *hostname, int port) | |
1762 | { | |
1763 | struct bmp_active *ba; | |
1764 | ||
1765 | ba = bmp_active_find(bt, hostname, port); | |
1766 | if (ba) | |
1767 | return ba; | |
1768 | ||
1769 | ba = XCALLOC(MTYPE_BMP_ACTIVE, sizeof(*ba)); | |
1770 | ba->targets = bt; | |
1771 | ba->hostname = XSTRDUP(MTYPE_TMP, hostname); | |
1772 | ba->port = port; | |
1773 | ba->minretry = BMP_DFLT_MINRETRY; | |
1774 | ba->maxretry = BMP_DFLT_MAXRETRY; | |
1775 | ba->socket = -1; | |
1776 | ||
1777 | bmp_actives_add(&bt->actives, ba); | |
1778 | return ba; | |
1779 | } | |
1780 | ||
1781 | static void bmp_active_put(struct bmp_active *ba) | |
1782 | { | |
1783 | THREAD_OFF(ba->t_timer); | |
1784 | THREAD_OFF(ba->t_read); | |
1785 | THREAD_OFF(ba->t_write); | |
1786 | ||
1787 | bmp_actives_del(&ba->targets->actives, ba); | |
1788 | ||
1789 | if (ba->bmp) { | |
1790 | ba->bmp->active = NULL; | |
1791 | bmp_close(ba->bmp); | |
1792 | bmp_free(ba->bmp); | |
1793 | } | |
1794 | if (ba->socket != -1) | |
1795 | close(ba->socket); | |
1796 | ||
09f267ec | 1797 | XFREE(MTYPE_TMP, ba->ifsrc); |
ed18356f DL |
1798 | XFREE(MTYPE_TMP, ba->hostname); |
1799 | XFREE(MTYPE_BMP_ACTIVE, ba); | |
1800 | } | |
1801 | ||
1802 | static void bmp_active_setup(struct bmp_active *ba); | |
1803 | ||
1804 | static void bmp_active_connect(struct bmp_active *ba) | |
1805 | { | |
1806 | enum connect_result res; | |
09f267ec FD |
1807 | struct interface *ifp; |
1808 | vrf_id_t vrf_id = VRF_DEFAULT; | |
1809 | int res_bind; | |
ed18356f DL |
1810 | |
1811 | for (; ba->addrpos < ba->addrtotal; ba->addrpos++) { | |
09f267ec FD |
1812 | if (ba->ifsrc) { |
1813 | if (ba->targets && ba->targets->bgp) | |
1814 | vrf_id = ba->targets->bgp->vrf_id; | |
1815 | ||
1816 | /* find interface and related */ | |
1817 | /* address with same family */ | |
1818 | ifp = if_lookup_by_name(ba->ifsrc, vrf_id); | |
1819 | if (!ifp) { | |
1820 | zlog_warn("bmp[%s]: failed to find interface", | |
1821 | ba->ifsrc); | |
1822 | continue; | |
1823 | } | |
1824 | ||
1825 | if (bgp_update_address(ifp, &ba->addrs[ba->addrpos], | |
1826 | &ba->addrsrc)){ | |
1827 | zlog_warn("bmp[%s]: failed to find matching address", | |
1828 | ba->ifsrc); | |
1829 | continue; | |
1830 | } | |
ddf6338c DS |
1831 | zlog_info("bmp[%s]: selected source address : %pSU", |
1832 | ba->ifsrc, &ba->addrsrc); | |
09f267ec FD |
1833 | } |
1834 | ||
ed18356f DL |
1835 | ba->socket = sockunion_socket(&ba->addrs[ba->addrpos]); |
1836 | if (ba->socket < 0) { | |
1837 | zlog_warn("bmp[%s]: failed to create socket", | |
1838 | ba->hostname); | |
1839 | continue; | |
1840 | } | |
c258527b | 1841 | |
ed18356f | 1842 | set_nonblocking(ba->socket); |
09f267ec FD |
1843 | |
1844 | if (!sockunion_is_null(&ba->addrsrc)) { | |
1845 | res_bind = sockunion_bind(ba->socket, &ba->addrsrc, 0, | |
1846 | &ba->addrsrc); | |
1847 | if (res_bind < 0) { | |
09f267ec | 1848 | zlog_warn( |
ddf6338c DS |
1849 | "bmp[%s]: no bind currently to source address %pSU:%d", |
1850 | ba->hostname, &ba->addrsrc, ba->port); | |
09f267ec FD |
1851 | close(ba->socket); |
1852 | ba->socket = -1; | |
1853 | sockunion_init(&ba->addrsrc); | |
1854 | continue; | |
1855 | } | |
1856 | } | |
1857 | ||
1858 | ||
ed18356f DL |
1859 | res = sockunion_connect(ba->socket, &ba->addrs[ba->addrpos], |
1860 | htons(ba->port), 0); | |
1861 | switch (res) { | |
1862 | case connect_error: | |
ddf6338c DS |
1863 | zlog_warn("bmp[%s]: failed to connect to %pSU:%d", |
1864 | ba->hostname, &ba->addrs[ba->addrpos], | |
1865 | ba->port); | |
ed18356f DL |
1866 | close(ba->socket); |
1867 | ba->socket = -1; | |
09f267ec | 1868 | sockunion_init(&ba->addrsrc); |
ed18356f DL |
1869 | continue; |
1870 | case connect_success: | |
ddf6338c DS |
1871 | zlog_info("bmp[%s]: connected to %pSU:%d", |
1872 | ba->hostname, &ba->addrs[ba->addrpos], | |
1873 | ba->port); | |
ed18356f DL |
1874 | break; |
1875 | case connect_in_progress: | |
ddf6338c DS |
1876 | zlog_warn("bmp[%s]: connect in progress %pSU:%d", |
1877 | ba->hostname, &ba->addrs[ba->addrpos], | |
1878 | ba->port); | |
ed18356f DL |
1879 | bmp_active_setup(ba); |
1880 | return; | |
1881 | } | |
1882 | } | |
1883 | ||
1884 | /* exhausted all addresses */ | |
1885 | ba->curretry += ba->curretry / 2; | |
1886 | bmp_active_setup(ba); | |
1887 | } | |
1888 | ||
3286ca07 DL |
1889 | static void bmp_active_resolved(struct resolver_query *resq, const char *errstr, |
1890 | int numaddrs, union sockunion *addr) | |
ed18356f DL |
1891 | { |
1892 | struct bmp_active *ba = container_of(resq, struct bmp_active, resq); | |
1893 | unsigned i; | |
1894 | ||
1895 | if (numaddrs <= 0) { | |
3286ca07 DL |
1896 | zlog_warn("bmp[%s]: hostname resolution failed: %s", |
1897 | ba->hostname, errstr); | |
1898 | ba->last_err = errstr; | |
125dc952 | 1899 | ba->curretry += ba->curretry / 2; |
a3d04c32 | 1900 | ba->addrpos = 0; |
125dc952 DL |
1901 | ba->addrtotal = 0; |
1902 | bmp_active_setup(ba); | |
1903 | return; | |
a3d04c32 | 1904 | } |
ed18356f | 1905 | |
125dc952 DL |
1906 | if (numaddrs > (int)array_size(ba->addrs)) |
1907 | numaddrs = array_size(ba->addrs); | |
1908 | ||
1909 | ba->addrpos = 0; | |
1910 | ba->addrtotal = numaddrs; | |
1911 | for (i = 0; i < ba->addrtotal; i++) | |
1912 | memcpy(&ba->addrs[i], &addr[i], sizeof(ba->addrs[0])); | |
1913 | ||
ed18356f DL |
1914 | bmp_active_connect(ba); |
1915 | } | |
1916 | ||
cc9f21da | 1917 | static void bmp_active_thread(struct thread *t) |
ed18356f DL |
1918 | { |
1919 | struct bmp_active *ba = THREAD_ARG(t); | |
1920 | socklen_t slen; | |
1921 | int status, ret; | |
c742573b | 1922 | vrf_id_t vrf_id; |
ed18356f DL |
1923 | |
1924 | /* all 3 end up here, though only timer or read+write are active | |
1925 | * at a time */ | |
1926 | THREAD_OFF(ba->t_timer); | |
1927 | THREAD_OFF(ba->t_read); | |
1928 | THREAD_OFF(ba->t_write); | |
1929 | ||
3286ca07 DL |
1930 | ba->last_err = NULL; |
1931 | ||
ed18356f | 1932 | if (ba->socket == -1) { |
c742573b PG |
1933 | /* get vrf_id */ |
1934 | if (!ba->targets || !ba->targets->bgp) | |
1935 | vrf_id = VRF_DEFAULT; | |
1936 | else | |
1937 | vrf_id = ba->targets->bgp->vrf_id; | |
1938 | resolver_resolve(&ba->resq, AF_UNSPEC, vrf_id, ba->hostname, | |
ed18356f | 1939 | bmp_active_resolved); |
cc9f21da | 1940 | return; |
ed18356f DL |
1941 | } |
1942 | ||
1943 | slen = sizeof(status); | |
1944 | ret = getsockopt(ba->socket, SOL_SOCKET, SO_ERROR, (void *)&status, | |
1945 | &slen); | |
1946 | ||
ed18356f | 1947 | if (ret < 0 || status != 0) { |
3286ca07 | 1948 | ba->last_err = strerror(status); |
47e12884 DA |
1949 | zlog_warn("bmp[%s]: failed to connect to %pSU:%d: %s", |
1950 | ba->hostname, &ba->addrs[ba->addrpos], ba->port, | |
1951 | ba->last_err); | |
ed18356f DL |
1952 | goto out_next; |
1953 | } | |
1954 | ||
47e12884 DA |
1955 | zlog_warn("bmp[%s]: outbound connection to %pSU:%d", ba->hostname, |
1956 | &ba->addrs[ba->addrpos], ba->port); | |
ed18356f DL |
1957 | |
1958 | ba->bmp = bmp_open(ba->targets, ba->socket); | |
1959 | if (!ba->bmp) | |
1960 | goto out_next; | |
1961 | ||
1962 | ba->bmp->active = ba; | |
1963 | ba->socket = -1; | |
1964 | ba->curretry = ba->minretry; | |
cc9f21da | 1965 | return; |
ed18356f DL |
1966 | |
1967 | out_next: | |
1968 | close(ba->socket); | |
1969 | ba->socket = -1; | |
1970 | ba->addrpos++; | |
1971 | bmp_active_connect(ba); | |
ed18356f DL |
1972 | } |
1973 | ||
1974 | static void bmp_active_disconnected(struct bmp_active *ba) | |
1975 | { | |
1976 | ba->bmp = NULL; | |
1977 | bmp_active_setup(ba); | |
1978 | } | |
1979 | ||
1980 | static void bmp_active_setup(struct bmp_active *ba) | |
1981 | { | |
1982 | THREAD_OFF(ba->t_timer); | |
1983 | THREAD_OFF(ba->t_read); | |
1984 | THREAD_OFF(ba->t_write); | |
1985 | ||
1986 | if (ba->bmp) | |
1987 | return; | |
1988 | if (ba->resq.callback) | |
1989 | return; | |
1990 | ||
1991 | if (ba->curretry > ba->maxretry) | |
1992 | ba->curretry = ba->maxretry; | |
1993 | ||
1994 | if (ba->socket == -1) | |
1995 | thread_add_timer_msec(bm->master, bmp_active_thread, ba, | |
1996 | ba->curretry, &ba->t_timer); | |
1997 | else { | |
1998 | thread_add_read(bm->master, bmp_active_thread, ba, ba->socket, | |
1999 | &ba->t_read); | |
2000 | thread_add_write(bm->master, bmp_active_thread, ba, ba->socket, | |
2001 | &ba->t_write); | |
2002 | } | |
2003 | } | |
2004 | ||
62b346ee | 2005 | static struct cmd_node bmp_node = { |
f4b8291f | 2006 | .name = "bmp", |
62b346ee | 2007 | .node = BMP_NODE, |
24389580 | 2008 | .parent_node = BGP_NODE, |
62b346ee DL |
2009 | .prompt = "%s(config-bgp-bmp)# " |
2010 | }; | |
ed18356f | 2011 | |
bbd747df DA |
2012 | static void bmp_targets_autocomplete(vector comps, struct cmd_token *token) |
2013 | { | |
2014 | struct bgp *bgp; | |
2015 | struct bmp_targets *target; | |
2016 | struct listnode *node; | |
2017 | ||
2018 | for (ALL_LIST_ELEMENTS_RO(bm->bgp, node, bgp)) { | |
2019 | struct bmp_bgp *bmpbgp = bmp_bgp_find(bgp); | |
2020 | ||
2021 | if (!bmpbgp) | |
2022 | continue; | |
2023 | ||
2024 | frr_each_safe (bmp_targets, &bmpbgp->targets, target) | |
2025 | vector_set(comps, | |
2026 | XSTRDUP(MTYPE_COMPLETION, target->name)); | |
2027 | } | |
2028 | } | |
2029 | ||
2030 | static const struct cmd_variable_handler bmp_targets_var_handlers[] = { | |
2031 | {.tokenname = "BMPTARGETS", .completions = bmp_targets_autocomplete}, | |
2032 | {.completions = NULL}}; | |
2033 | ||
ed18356f DL |
2034 | #define BMP_STR "BGP Monitoring Protocol\n" |
2035 | ||
2036 | #ifndef VTYSH_EXTRACT_PL | |
33a9e196 | 2037 | #include "bgpd/bgp_bmp_clippy.c" |
ed18356f DL |
2038 | #endif |
2039 | ||
2040 | DEFPY_NOSH(bmp_targets_main, | |
2041 | bmp_targets_cmd, | |
2042 | "bmp targets BMPTARGETS", | |
2043 | BMP_STR | |
2044 | "Create BMP target group\n" | |
2045 | "Name of the BMP target group\n") | |
2046 | { | |
2047 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
2048 | struct bmp_targets *bt; | |
2049 | ||
2050 | bt = bmp_targets_get(bgp, bmptargets); | |
2051 | ||
2052 | VTY_PUSH_CONTEXT_SUB(BMP_NODE, bt); | |
2053 | return CMD_SUCCESS; | |
2054 | } | |
2055 | ||
2056 | DEFPY(no_bmp_targets_main, | |
2057 | no_bmp_targets_cmd, | |
2058 | "no bmp targets BMPTARGETS", | |
2059 | NO_STR | |
2060 | BMP_STR | |
2061 | "Delete BMP target group\n" | |
2062 | "Name of the BMP target group\n") | |
2063 | { | |
2064 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
2065 | struct bmp_targets *bt; | |
2066 | ||
2067 | bt = bmp_targets_find1(bgp, bmptargets); | |
2068 | if (!bt) { | |
2069 | vty_out(vty, "%% BMP target group not found\n"); | |
2070 | return CMD_WARNING; | |
2071 | } | |
2072 | bmp_targets_put(bt); | |
2073 | return CMD_SUCCESS; | |
2074 | } | |
2075 | ||
2076 | DEFPY(bmp_listener_main, | |
2077 | bmp_listener_cmd, | |
2078 | "bmp listener <X:X::X:X|A.B.C.D> port (1-65535)", | |
2079 | BMP_STR | |
2080 | "Listen for inbound BMP connections\n" | |
2081 | "IPv6 address to listen on\n" | |
2082 | "IPv4 address to listen on\n" | |
2083 | "TCP Port number\n" | |
2084 | "TCP Port number\n") | |
2085 | { | |
2086 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2087 | struct bmp_listener *bl; | |
2088 | ||
2089 | bl = bmp_listener_get(bt, listener, port); | |
2090 | if (bl->sock == -1) | |
2091 | bmp_listener_start(bl); | |
2092 | ||
2093 | return CMD_SUCCESS; | |
2094 | } | |
2095 | ||
2096 | DEFPY(no_bmp_listener_main, | |
2097 | no_bmp_listener_cmd, | |
2098 | "no bmp listener <X:X::X:X|A.B.C.D> port (1-65535)", | |
2099 | NO_STR | |
2100 | BMP_STR | |
2101 | "Create BMP listener\n" | |
2102 | "IPv6 address to listen on\n" | |
2103 | "IPv4 address to listen on\n" | |
2104 | "TCP Port number\n" | |
2105 | "TCP Port number\n") | |
2106 | { | |
2107 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2108 | struct bmp_listener *bl; | |
2109 | ||
2110 | bl = bmp_listener_find(bt, listener, port); | |
2111 | if (!bl) { | |
2112 | vty_out(vty, "%% BMP listener not found\n"); | |
2113 | return CMD_WARNING; | |
2114 | } | |
2115 | bmp_listener_stop(bl); | |
2116 | bmp_listener_put(bl); | |
2117 | return CMD_SUCCESS; | |
2118 | } | |
2119 | ||
2120 | DEFPY(bmp_connect, | |
2121 | bmp_connect_cmd, | |
09f267ec | 2122 | "[no] bmp connect HOSTNAME port (1-65535) {min-retry (100-86400000)|max-retry (100-86400000)} [source-interface <WORD$srcif>]", |
ed18356f DL |
2123 | NO_STR |
2124 | BMP_STR | |
2125 | "Actively establish connection to monitoring station\n" | |
2126 | "Monitoring station hostname or address\n" | |
2127 | "TCP port\n" | |
2128 | "TCP port\n" | |
2129 | "Minimum connection retry interval\n" | |
2130 | "Minimum connection retry interval (milliseconds)\n" | |
2131 | "Maximum connection retry interval\n" | |
09f267ec FD |
2132 | "Maximum connection retry interval (milliseconds)\n" |
2133 | "Source interface to use\n" | |
2134 | "Define an interface\n") | |
ed18356f DL |
2135 | { |
2136 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2137 | struct bmp_active *ba; | |
2138 | ||
2139 | if (no) { | |
2140 | ba = bmp_active_find(bt, hostname, port); | |
2141 | if (!ba) { | |
2142 | vty_out(vty, "%% No such active connection found\n"); | |
2143 | return CMD_WARNING; | |
2144 | } | |
09f267ec FD |
2145 | /* connection deletion need same hostname port and interface */ |
2146 | if (ba->ifsrc || srcif) | |
2147 | if ((!ba->ifsrc) || (!srcif) || | |
2148 | !strcmp(ba->ifsrc, srcif)) { | |
2149 | vty_out(vty, | |
2150 | "%% No such active connection found\n"); | |
2151 | return CMD_WARNING; | |
2152 | } | |
ed18356f DL |
2153 | bmp_active_put(ba); |
2154 | return CMD_SUCCESS; | |
2155 | } | |
2156 | ||
2157 | ba = bmp_active_get(bt, hostname, port); | |
09f267ec FD |
2158 | if (srcif) |
2159 | ba->ifsrc = XSTRDUP(MTYPE_TMP, srcif); | |
ed18356f DL |
2160 | if (min_retry_str) |
2161 | ba->minretry = min_retry; | |
2162 | if (max_retry_str) | |
2163 | ba->maxretry = max_retry; | |
2164 | ba->curretry = ba->minretry; | |
2165 | bmp_active_setup(ba); | |
2166 | ||
2167 | return CMD_SUCCESS; | |
2168 | } | |
2169 | ||
2170 | DEFPY(bmp_acl, | |
2171 | bmp_acl_cmd, | |
5c757689 | 2172 | "[no] <ip|ipv6>$af access-list ACCESSLIST_NAME$access_list", |
ed18356f DL |
2173 | NO_STR |
2174 | IP_STR | |
2175 | IPV6_STR | |
2176 | "Access list to restrict BMP sessions\n" | |
2177 | "Access list name\n") | |
2178 | { | |
2179 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2180 | char **what; | |
2181 | ||
2182 | if (no) | |
2183 | access_list = NULL; | |
2184 | if (!strcmp(af, "ipv6")) | |
2185 | what = &bt->acl6_name; | |
2186 | else | |
2187 | what = &bt->acl_name; | |
2188 | ||
2189 | XFREE(MTYPE_BMP_ACLNAME, *what); | |
2190 | if (access_list) | |
2191 | *what = XSTRDUP(MTYPE_BMP_ACLNAME, access_list); | |
2192 | ||
2193 | return CMD_SUCCESS; | |
2194 | } | |
2195 | ||
2196 | DEFPY(bmp_stats_cfg, | |
2197 | bmp_stats_cmd, | |
2198 | "[no] bmp stats [interval (100-86400000)]", | |
2199 | NO_STR | |
2200 | BMP_STR | |
2201 | "Send BMP statistics messages\n" | |
2202 | "Specify BMP stats interval\n" | |
2203 | "Interval (milliseconds) to send BMP Stats in\n") | |
2204 | { | |
2205 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2206 | ||
2207 | THREAD_OFF(bt->t_stats); | |
2208 | if (no) | |
2209 | bt->stat_msec = 0; | |
2210 | else if (interval_str) | |
2211 | bt->stat_msec = interval; | |
2212 | else | |
2213 | bt->stat_msec = BMP_STAT_DEFAULT_TIMER; | |
2214 | ||
2215 | if (bt->stat_msec) | |
2216 | thread_add_timer_msec(bm->master, bmp_stats, bt, bt->stat_msec, | |
2217 | &bt->t_stats); | |
2218 | return CMD_SUCCESS; | |
2219 | } | |
2220 | ||
2221 | DEFPY(bmp_monitor_cfg, | |
2222 | bmp_monitor_cmd, | |
5dde2965 | 2223 | "[no] bmp monitor <ipv4|ipv6|l2vpn> <unicast|multicast|evpn|vpn> <pre-policy|post-policy>$policy", |
ed18356f DL |
2224 | NO_STR |
2225 | BMP_STR | |
2226 | "Send BMP route monitoring messages\n" | |
00e6edb9 DA |
2227 | BGP_AF_STR |
2228 | BGP_AF_STR | |
2229 | BGP_AF_STR | |
2230 | BGP_AF_STR | |
2231 | BGP_AF_STR | |
2232 | BGP_AF_STR | |
2233 | BGP_AF_STR | |
ed18356f DL |
2234 | "Send state before policy and filter processing\n" |
2235 | "Send state with policy and filters applied\n") | |
2236 | { | |
2237 | int index = 0; | |
2238 | uint8_t flag, prev; | |
2239 | afi_t afi; | |
2240 | safi_t safi; | |
2241 | ||
2242 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2243 | struct bmp *bmp; | |
2244 | ||
2245 | argv_find_and_parse_afi(argv, argc, &index, &afi); | |
2246 | argv_find_and_parse_safi(argv, argc, &index, &safi); | |
2247 | ||
2248 | if (policy[1] == 'r') | |
2249 | flag = BMP_MON_PREPOLICY; | |
2250 | else | |
2251 | flag = BMP_MON_POSTPOLICY; | |
2252 | ||
2253 | prev = bt->afimon[afi][safi]; | |
2254 | if (no) | |
2255 | bt->afimon[afi][safi] &= ~flag; | |
2256 | else | |
2257 | bt->afimon[afi][safi] |= flag; | |
2258 | ||
2259 | if (prev == bt->afimon[afi][safi]) | |
2260 | return CMD_SUCCESS; | |
2261 | ||
2262 | frr_each (bmp_session, &bt->sessions, bmp) { | |
2263 | if (bmp->syncafi == afi && bmp->syncsafi == safi) { | |
2264 | bmp->syncafi = AFI_MAX; | |
2265 | bmp->syncsafi = SAFI_MAX; | |
2266 | } | |
2267 | ||
2268 | if (!bt->afimon[afi][safi]) { | |
2269 | bmp->afistate[afi][safi] = BMP_AFI_INACTIVE; | |
2270 | continue; | |
2271 | } | |
2272 | ||
2273 | bmp->afistate[afi][safi] = BMP_AFI_NEEDSYNC; | |
2274 | } | |
2275 | ||
2276 | return CMD_SUCCESS; | |
2277 | } | |
2278 | ||
2279 | DEFPY(bmp_mirror_cfg, | |
2280 | bmp_mirror_cmd, | |
2281 | "[no] bmp mirror", | |
2282 | NO_STR | |
2283 | BMP_STR | |
2284 | "Send BMP route mirroring messages\n") | |
2285 | { | |
2286 | VTY_DECLVAR_CONTEXT_SUB(bmp_targets, bt); | |
2287 | struct bmp *bmp; | |
2288 | ||
2289 | if (bt->mirror == !no) | |
2290 | return CMD_SUCCESS; | |
2291 | ||
2292 | bt->mirror = !no; | |
2293 | if (bt->mirror) | |
2294 | return CMD_SUCCESS; | |
2295 | ||
2296 | frr_each (bmp_session, &bt->sessions, bmp) { | |
2297 | struct bmp_mirrorq *bmq; | |
2298 | ||
2299 | while ((bmq = bmp_pull_mirror(bmp))) | |
2300 | if (!bmq->refcount) | |
2301 | XFREE(MTYPE_BMP_MIRRORQ, bmq); | |
2302 | } | |
2303 | return CMD_SUCCESS; | |
2304 | } | |
2305 | ||
2306 | DEFPY(bmp_mirror_limit_cfg, | |
2307 | bmp_mirror_limit_cmd, | |
2308 | "bmp mirror buffer-limit (0-4294967294)", | |
2309 | BMP_STR | |
2310 | "Route Mirroring settings\n" | |
2311 | "Configure maximum memory used for buffered mirroring messages\n" | |
2312 | "Limit in bytes\n") | |
2313 | { | |
2314 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
2315 | struct bmp_bgp *bmpbgp; | |
2316 | ||
2317 | bmpbgp = bmp_bgp_get(bgp); | |
2318 | bmpbgp->mirror_qsizelimit = buffer_limit; | |
2319 | ||
2320 | return CMD_SUCCESS; | |
2321 | } | |
2322 | ||
2323 | DEFPY(no_bmp_mirror_limit_cfg, | |
2324 | no_bmp_mirror_limit_cmd, | |
2325 | "no bmp mirror buffer-limit [(0-4294967294)]", | |
2326 | NO_STR | |
2327 | BMP_STR | |
2328 | "Route Mirroring settings\n" | |
2329 | "Configure maximum memory used for buffered mirroring messages\n" | |
2330 | "Limit in bytes\n") | |
2331 | { | |
2332 | VTY_DECLVAR_CONTEXT(bgp, bgp); | |
2333 | struct bmp_bgp *bmpbgp; | |
2334 | ||
2335 | bmpbgp = bmp_bgp_get(bgp); | |
2336 | bmpbgp->mirror_qsizelimit = ~0UL; | |
2337 | ||
2338 | return CMD_SUCCESS; | |
2339 | } | |
2340 | ||
2341 | ||
2342 | DEFPY(show_bmp, | |
2343 | show_bmp_cmd, | |
2344 | "show bmp", | |
2345 | SHOW_STR | |
2346 | BMP_STR) | |
2347 | { | |
2348 | struct bmp_bgp *bmpbgp; | |
2349 | struct bmp_targets *bt; | |
2350 | struct bmp_listener *bl; | |
150470da | 2351 | struct bmp_active *ba; |
ed18356f DL |
2352 | struct bmp *bmp; |
2353 | struct ttable *tt; | |
150470da DL |
2354 | char uptime[BGP_UPTIME_LEN]; |
2355 | char *out; | |
ed18356f DL |
2356 | |
2357 | frr_each(bmp_bgph, &bmp_bgph, bmpbgp) { | |
2358 | vty_out(vty, "BMP state for BGP %s:\n\n", | |
2359 | bmpbgp->bgp->name_pretty); | |
2360 | vty_out(vty, " Route Mirroring %9zu bytes (%zu messages) pending\n", | |
2361 | bmpbgp->mirror_qsize, | |
2362 | bmp_mirrorq_count(&bmpbgp->mirrorq)); | |
2363 | vty_out(vty, " %9zu bytes maximum buffer used\n", | |
2364 | bmpbgp->mirror_qsizemax); | |
2365 | if (bmpbgp->mirror_qsizelimit != ~0UL) | |
2366 | vty_out(vty, " %9zu bytes buffer size limit\n", | |
2367 | bmpbgp->mirror_qsizelimit); | |
2368 | vty_out(vty, "\n"); | |
2369 | ||
2370 | frr_each(bmp_targets, &bmpbgp->targets, bt) { | |
2371 | vty_out(vty, " Targets \"%s\":\n", bt->name); | |
2372 | vty_out(vty, " Route Mirroring %sabled\n", | |
2373 | bt->mirror ? "en" : "dis"); | |
2374 | ||
2375 | afi_t afi; | |
2376 | safi_t safi; | |
2377 | ||
2378 | FOREACH_AFI_SAFI (afi, safi) { | |
2379 | const char *str = NULL; | |
2380 | ||
2381 | switch (bt->afimon[afi][safi]) { | |
2382 | case BMP_MON_PREPOLICY: | |
2383 | str = "pre-policy"; | |
2384 | break; | |
2385 | case BMP_MON_POSTPOLICY: | |
2386 | str = "post-policy"; | |
2387 | break; | |
2388 | case BMP_MON_PREPOLICY | BMP_MON_POSTPOLICY: | |
2389 | str = "pre-policy and post-policy"; | |
2390 | break; | |
2391 | } | |
2392 | if (!str) | |
2393 | continue; | |
2394 | vty_out(vty, " Route Monitoring %s %s %s\n", | |
2395 | afi2str(afi), safi2str(safi), str); | |
2396 | } | |
2397 | ||
2398 | vty_out(vty, " Listeners:\n"); | |
2399 | frr_each (bmp_listeners, &bt->listeners, bl) | |
47e12884 DA |
2400 | vty_out(vty, " %pSU:%d\n", &bl->addr, |
2401 | bl->port); | |
ed18356f | 2402 | |
150470da DL |
2403 | vty_out(vty, "\n Outbound connections:\n"); |
2404 | tt = ttable_new(&ttable_styles[TTSTYLE_BLANK]); | |
09f267ec | 2405 | ttable_add_row(tt, "remote|state||timer|local"); |
150470da DL |
2406 | ttable_rowseps(tt, 0, BOTTOM, true, '-'); |
2407 | frr_each (bmp_actives, &bt->actives, ba) { | |
2408 | const char *state_str = "?"; | |
2409 | ||
2410 | if (ba->bmp) { | |
2411 | peer_uptime(ba->bmp->t_up.tv_sec, | |
2412 | uptime, sizeof(uptime), | |
2413 | false, NULL); | |
47e12884 DA |
2414 | ttable_add_row(tt, |
2415 | "%s:%d|Up|%s|%s|%pSU", | |
150470da | 2416 | ba->hostname, ba->port, |
09f267ec | 2417 | ba->bmp->remote, uptime, |
47e12884 | 2418 | &ba->addrsrc); |
150470da DL |
2419 | continue; |
2420 | } | |
2421 | ||
2422 | uptime[0] = '\0'; | |
2423 | ||
2424 | if (ba->t_timer) { | |
2425 | long trem = thread_timer_remain_second( | |
2426 | ba->t_timer); | |
2427 | ||
2428 | peer_uptime(monotime(NULL) - trem, | |
2429 | uptime, sizeof(uptime), | |
2430 | false, NULL); | |
2431 | state_str = "RetryWait"; | |
2432 | } else if (ba->t_read) { | |
2433 | state_str = "Connecting"; | |
2434 | } else if (ba->resq.callback) { | |
2435 | state_str = "Resolving"; | |
2436 | } | |
2437 | ||
47e12884 | 2438 | ttable_add_row(tt, "%s:%d|%s|%s|%s|%pSU", |
150470da DL |
2439 | ba->hostname, ba->port, |
2440 | state_str, | |
2441 | ba->last_err ? ba->last_err : "", | |
47e12884 | 2442 | uptime, &ba->addrsrc); |
150470da DL |
2443 | continue; |
2444 | } | |
2445 | out = ttable_dump(tt, "\n"); | |
2446 | vty_out(vty, "%s", out); | |
2447 | XFREE(MTYPE_TMP, out); | |
2448 | ttable_del(tt); | |
2449 | ||
ed18356f DL |
2450 | vty_out(vty, "\n %zu connected clients:\n", |
2451 | bmp_session_count(&bt->sessions)); | |
2452 | tt = ttable_new(&ttable_styles[TTSTYLE_BLANK]); | |
2453 | ttable_add_row(tt, "remote|uptime|MonSent|MirrSent|MirrLost|ByteSent|ByteQ|ByteQKernel"); | |
2454 | ttable_rowseps(tt, 0, BOTTOM, true, '-'); | |
2455 | ||
2456 | frr_each (bmp_session, &bt->sessions, bmp) { | |
2457 | uint64_t total; | |
2458 | size_t q, kq; | |
2459 | ||
2460 | pullwr_stats(bmp->pullwr, &total, &q, &kq); | |
2461 | ||
9e89da8c DL |
2462 | peer_uptime(bmp->t_up.tv_sec, uptime, |
2463 | sizeof(uptime), false, NULL); | |
2464 | ||
2465 | ttable_add_row(tt, "%s|%s|%Lu|%Lu|%Lu|%Lu|%zu|%zu", | |
2466 | bmp->remote, uptime, | |
ed18356f DL |
2467 | bmp->cnt_update, |
2468 | bmp->cnt_mirror, | |
2469 | bmp->cnt_mirror_overruns, | |
2470 | total, q, kq); | |
2471 | } | |
150470da | 2472 | out = ttable_dump(tt, "\n"); |
ed18356f DL |
2473 | vty_out(vty, "%s", out); |
2474 | XFREE(MTYPE_TMP, out); | |
2475 | ttable_del(tt); | |
2476 | vty_out(vty, "\n"); | |
2477 | } | |
2478 | } | |
2479 | ||
2480 | return CMD_SUCCESS; | |
2481 | } | |
2482 | ||
2483 | static int bmp_config_write(struct bgp *bgp, struct vty *vty) | |
2484 | { | |
2485 | struct bmp_bgp *bmpbgp = bmp_bgp_find(bgp); | |
2486 | struct bmp_targets *bt; | |
2487 | struct bmp_listener *bl; | |
2488 | struct bmp_active *ba; | |
ed18356f DL |
2489 | afi_t afi; |
2490 | safi_t safi; | |
2491 | ||
2492 | if (!bmpbgp) | |
2493 | return 0; | |
2494 | ||
2495 | if (bmpbgp->mirror_qsizelimit != ~0UL) | |
2496 | vty_out(vty, " !\n bmp mirror buffer-limit %zu\n", | |
2497 | bmpbgp->mirror_qsizelimit); | |
2498 | ||
2499 | frr_each(bmp_targets, &bmpbgp->targets, bt) { | |
2500 | vty_out(vty, " !\n bmp targets %s\n", bt->name); | |
2501 | ||
2502 | if (bt->acl6_name) | |
2503 | vty_out(vty, " ipv6 access-list %s\n", bt->acl6_name); | |
2504 | if (bt->acl_name) | |
2505 | vty_out(vty, " ip access-list %s\n", bt->acl_name); | |
2506 | ||
2507 | if (bt->stat_msec) | |
2508 | vty_out(vty, " bmp stats interval %d\n", | |
2509 | bt->stat_msec); | |
2510 | ||
2511 | if (bt->mirror) | |
2512 | vty_out(vty, " bmp mirror\n"); | |
2513 | ||
2514 | FOREACH_AFI_SAFI (afi, safi) { | |
2515 | const char *afi_str = (afi == AFI_IP) ? "ipv4" : "ipv6"; | |
2516 | ||
2517 | if (bt->afimon[afi][safi] & BMP_MON_PREPOLICY) | |
2518 | vty_out(vty, " bmp monitor %s %s pre-policy\n", | |
2519 | afi_str, safi2str(safi)); | |
2520 | if (bt->afimon[afi][safi] & BMP_MON_POSTPOLICY) | |
2521 | vty_out(vty, " bmp monitor %s %s post-policy\n", | |
2522 | afi_str, safi2str(safi)); | |
2523 | } | |
2524 | frr_each (bmp_listeners, &bt->listeners, bl) | |
47e12884 DA |
2525 | vty_out(vty, " \n bmp listener %pSU port %d\n", |
2526 | &bl->addr, bl->port); | |
ed18356f | 2527 | |
09f267ec FD |
2528 | frr_each (bmp_actives, &bt->actives, ba) { |
2529 | vty_out(vty, " bmp connect %s port %u min-retry %u max-retry %u", | |
2530 | ba->hostname, ba->port, | |
2531 | ba->minretry, ba->maxretry); | |
07679ad9 | 2532 | |
09f267ec FD |
2533 | if (ba->ifsrc) |
2534 | vty_out(vty, " source-interface %s\n", ba->ifsrc); | |
2535 | else | |
2536 | vty_out(vty, "\n"); | |
2537 | } | |
07679ad9 | 2538 | vty_out(vty, " exit\n"); |
ed18356f DL |
2539 | } |
2540 | ||
2541 | return 0; | |
2542 | } | |
2543 | ||
2544 | static int bgp_bmp_init(struct thread_master *tm) | |
2545 | { | |
612c2c15 | 2546 | install_node(&bmp_node); |
ed18356f | 2547 | install_default(BMP_NODE); |
bbd747df DA |
2548 | |
2549 | cmd_variable_handler_register(bmp_targets_var_handlers); | |
2550 | ||
ed18356f DL |
2551 | install_element(BGP_NODE, &bmp_targets_cmd); |
2552 | install_element(BGP_NODE, &no_bmp_targets_cmd); | |
2553 | ||
2554 | install_element(BMP_NODE, &bmp_listener_cmd); | |
2555 | install_element(BMP_NODE, &no_bmp_listener_cmd); | |
2556 | install_element(BMP_NODE, &bmp_connect_cmd); | |
2557 | install_element(BMP_NODE, &bmp_acl_cmd); | |
2558 | install_element(BMP_NODE, &bmp_stats_cmd); | |
2559 | install_element(BMP_NODE, &bmp_monitor_cmd); | |
2560 | install_element(BMP_NODE, &bmp_mirror_cmd); | |
2561 | ||
2562 | install_element(BGP_NODE, &bmp_mirror_limit_cmd); | |
2563 | install_element(BGP_NODE, &no_bmp_mirror_limit_cmd); | |
2564 | ||
2565 | install_element(VIEW_NODE, &show_bmp_cmd); | |
2566 | ||
2567 | resolver_init(tm); | |
0ba4eeec | 2568 | return 0; |
6c29258c YO |
2569 | } |
2570 | ||
0ba4eeec DL |
2571 | static int bgp_bmp_module_init(void) |
2572 | { | |
2573 | hook_register(bgp_packet_dump, bmp_mirror_packet); | |
ed18356f | 2574 | hook_register(bgp_packet_send, bmp_outgoing_packet); |
60563d0e | 2575 | hook_register(peer_status_changed, bmp_peer_status_changed); |
ed18356f DL |
2576 | hook_register(peer_backward_transition, bmp_peer_backward); |
2577 | hook_register(bgp_process, bmp_process); | |
2578 | hook_register(bgp_inst_config_write, bmp_config_write); | |
2579 | hook_register(bgp_inst_delete, bmp_bgp_del); | |
0ba4eeec DL |
2580 | hook_register(frr_late_init, bgp_bmp_init); |
2581 | return 0; | |
2582 | } | |
6c29258c | 2583 | |
0ba4eeec DL |
2584 | FRR_MODULE_SETUP(.name = "bgpd_bmp", .version = FRR_VERSION, |
2585 | .description = "bgpd BMP module", | |
80413c20 DL |
2586 | .init = bgp_bmp_module_init, |
2587 | ); |