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d62a17ae | 1 | /* |
65efcfce LB |
2 | * |
3 | * Copyright 2009-2016, LabN Consulting, L.L.C. | |
4 | * | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
896014f4 DL |
16 | * You should have received a copy of the GNU General Public License along |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
65efcfce LB |
19 | */ |
20 | ||
21 | /* | |
22 | * File: rfapi_rib.c | |
23 | * Purpose: maintain per-nve ribs and generate change lists | |
24 | */ | |
25 | ||
f8b6f499 LB |
26 | #include "lib/zebra.h" |
27 | #include "lib/prefix.h" | |
fe08ba7e | 28 | #include "lib/agg_table.h" |
f8b6f499 LB |
29 | #include "lib/vty.h" |
30 | #include "lib/memory.h" | |
31 | #include "lib/log.h" | |
32 | #include "lib/skiplist.h" | |
33 | #include "lib/workqueue.h" | |
65efcfce | 34 | |
f8b6f499 LB |
35 | #include "bgpd/bgpd.h" |
36 | #include "bgpd/bgp_route.h" | |
37 | #include "bgpd/bgp_ecommunity.h" | |
38 | #include "bgpd/bgp_mplsvpn.h" | |
39 | #include "bgpd/bgp_vnc_types.h" | |
65efcfce | 40 | |
f8b6f499 LB |
41 | #include "bgpd/rfapi/rfapi.h" |
42 | #include "bgpd/rfapi/bgp_rfapi_cfg.h" | |
43 | #include "bgpd/rfapi/rfapi_import.h" | |
44 | #include "bgpd/rfapi/rfapi_private.h" | |
45 | #include "bgpd/rfapi/rfapi_vty.h" | |
46 | #include "bgpd/rfapi/vnc_import_bgp.h" | |
47 | #include "bgpd/rfapi/rfapi_rib.h" | |
48 | #include "bgpd/rfapi/rfapi_monitor.h" | |
49 | #include "bgpd/rfapi/rfapi_encap_tlv.h" | |
a3b55c25 | 50 | #include "bgpd/rfapi/vnc_debug.h" |
65efcfce LB |
51 | |
52 | #define DEBUG_PROCESS_PENDING_NODE 0 | |
53 | #define DEBUG_PENDING_DELETE_ROUTE 0 | |
54 | #define DEBUG_NHL 0 | |
55 | #define DEBUG_RIB_SL_RD 0 | |
56 | ||
57 | /* forward decl */ | |
58 | #if DEBUG_NHL | |
d62a17ae | 59 | static void rfapiRibShowRibSl(void *stream, struct prefix *pfx, |
60 | struct skiplist *sl); | |
65efcfce LB |
61 | #endif |
62 | ||
63 | /* | |
64 | * RIB | |
65 | * --- | |
66 | * Model of the set of routes currently in the NVE's RIB. | |
67 | * | |
68 | * node->info ptr to "struct skiplist". | |
69 | * MUST be NULL if there are no routes. | |
70 | * key = ptr to struct prefix {vn} | |
71 | * val = ptr to struct rfapi_info | |
72 | * skiplist.del = NULL | |
73 | * skiplist.cmp = vnc_prefix_cmp | |
74 | * | |
75 | * node->aggregate ptr to "struct skiplist". | |
76 | * key = ptr to struct prefix {vn} | |
77 | * val = ptr to struct rfapi_info | |
78 | * skiplist.del = rfapi_info_free | |
79 | * skiplist.cmp = vnc_prefix_cmp | |
80 | * | |
81 | * This skiplist at "aggregate" | |
82 | * contains the routes recently | |
83 | * deleted | |
84 | * | |
85 | * | |
86 | * Pending RIB | |
87 | * ----------- | |
88 | * Sparse list of prefixes that need to be updated. Each node | |
89 | * will have the complete set of routes for the prefix. | |
90 | * | |
91 | * node->info ptr to "struct list" (lib/linklist.h) | |
92 | * "Cost List" | |
93 | * List of routes sorted lowest cost first. | |
94 | * This list is how the new complete set | |
95 | * of routes should look. | |
96 | * Set if there are updates to the prefix; | |
97 | * MUST be NULL if there are no updates. | |
98 | * | |
99 | * .data = ptr to struct rfapi_info | |
100 | * list.cmp = NULL (sorted manually) | |
101 | * list.del = rfapi_info_free | |
102 | * | |
103 | * Special case: if node->info is 1, it means | |
104 | * "delete all routes at this prefix". | |
105 | * | |
106 | * node->aggregate ptr to struct skiplist | |
107 | * key = ptr to struct prefix {vn} (part of ri) | |
108 | * val = struct rfapi_info | |
109 | * skiplist.cmp = vnc_prefix_cmp | |
110 | * skiplist.del = NULL | |
111 | * | |
112 | * ptlist is rewritten anew each time | |
113 | * rfapiRibUpdatePendingNode() is called | |
114 | * | |
115 | * THE ptlist VALUES ARE REFERENCES TO THE | |
116 | * rfapi_info STRUCTS IN THE node->info LIST. | |
117 | */ | |
118 | ||
119 | /* | |
120 | * iterate over RIB to count responses, compare with running counters | |
121 | */ | |
d62a17ae | 122 | void rfapiRibCheckCounts( |
123 | int checkstats, /* validate rfd & global counts */ | |
124 | unsigned int offset) /* number of ri's held separately */ | |
65efcfce | 125 | { |
d62a17ae | 126 | struct rfapi_descriptor *rfd; |
127 | struct listnode *node; | |
128 | ||
129 | struct bgp *bgp = bgp_get_default(); | |
130 | ||
131 | uint32_t t_pfx_active = 0; | |
132 | uint32_t t_pfx_deleted = 0; | |
133 | ||
134 | uint32_t t_ri_active = 0; | |
135 | uint32_t t_ri_deleted = 0; | |
136 | uint32_t t_ri_pend = 0; | |
137 | ||
138 | unsigned int alloc_count; | |
139 | ||
140 | /* | |
141 | * loop over NVEs | |
142 | */ | |
143 | for (ALL_LIST_ELEMENTS_RO(&bgp->rfapi->descriptors, node, rfd)) { | |
144 | ||
145 | afi_t afi; | |
146 | uint32_t pfx_active = 0; | |
147 | uint32_t pfx_deleted = 0; | |
148 | ||
149 | for (afi = AFI_IP; afi < AFI_MAX; ++afi) { | |
150 | ||
fe08ba7e | 151 | struct agg_node *rn; |
d62a17ae | 152 | |
fe08ba7e DS |
153 | for (rn = agg_route_top(rfd->rib[afi]); rn; |
154 | rn = agg_route_next(rn)) { | |
d62a17ae | 155 | |
156 | struct skiplist *sl = rn->info; | |
157 | struct skiplist *dsl = rn->aggregate; | |
158 | uint32_t ri_active = 0; | |
159 | uint32_t ri_deleted = 0; | |
160 | ||
161 | if (sl) { | |
162 | ri_active = skiplist_count(sl); | |
163 | assert(ri_active); | |
164 | t_ri_active += ri_active; | |
165 | ++pfx_active; | |
166 | ++t_pfx_active; | |
167 | } | |
168 | ||
169 | if (dsl) { | |
170 | ri_deleted = skiplist_count(dsl); | |
171 | t_ri_deleted += ri_deleted; | |
172 | ++pfx_deleted; | |
173 | ++t_pfx_deleted; | |
174 | } | |
175 | } | |
fe08ba7e DS |
176 | for (rn = agg_route_top(rfd->rib_pending[afi]); rn; |
177 | rn = agg_route_next(rn)) { | |
d62a17ae | 178 | |
179 | struct list *l = rn->info; /* sorted by cost */ | |
180 | struct skiplist *sl = rn->aggregate; | |
181 | uint32_t ri_pend_cost = 0; | |
182 | uint32_t ri_pend_uniq = 0; | |
183 | ||
184 | if (sl) { | |
185 | ri_pend_uniq = skiplist_count(sl); | |
186 | } | |
187 | ||
188 | if (l && (l != (void *)1)) { | |
189 | ri_pend_cost = l->count; | |
190 | t_ri_pend += l->count; | |
191 | } | |
192 | ||
193 | assert(ri_pend_uniq == ri_pend_cost); | |
194 | } | |
195 | } | |
196 | ||
197 | if (checkstats) { | |
198 | if (pfx_active != rfd->rib_prefix_count) { | |
199 | vnc_zlog_debug_verbose( | |
200 | "%s: rfd %p actual pfx count %u != running %u", | |
201 | __func__, rfd, pfx_active, | |
202 | rfd->rib_prefix_count); | |
203 | assert(0); | |
204 | } | |
205 | } | |
206 | } | |
207 | ||
8cea9547 | 208 | if (checkstats && bgp->rfapi) { |
d62a17ae | 209 | if (t_pfx_active != bgp->rfapi->rib_prefix_count_total) { |
210 | vnc_zlog_debug_verbose( | |
211 | "%s: actual total pfx count %u != running %u", | |
212 | __func__, t_pfx_active, | |
213 | bgp->rfapi->rib_prefix_count_total); | |
214 | assert(0); | |
215 | } | |
216 | } | |
217 | ||
218 | /* | |
219 | * Check against memory allocation count | |
220 | */ | |
221 | alloc_count = mtype_stats_alloc(MTYPE_RFAPI_INFO); | |
222 | assert(t_ri_active + t_ri_deleted + t_ri_pend + offset == alloc_count); | |
65efcfce LB |
223 | } |
224 | ||
4d762f26 | 225 | static struct rfapi_info *rfapi_info_new(void) |
65efcfce | 226 | { |
d62a17ae | 227 | return XCALLOC(MTYPE_RFAPI_INFO, sizeof(struct rfapi_info)); |
65efcfce LB |
228 | } |
229 | ||
d62a17ae | 230 | void rfapiFreeRfapiUnOptionChain(struct rfapi_un_option *p) |
65efcfce | 231 | { |
d62a17ae | 232 | while (p) { |
233 | struct rfapi_un_option *next; | |
234 | ||
235 | next = p->next; | |
236 | XFREE(MTYPE_RFAPI_UN_OPTION, p); | |
237 | p = next; | |
238 | } | |
65efcfce LB |
239 | } |
240 | ||
d62a17ae | 241 | void rfapiFreeRfapiVnOptionChain(struct rfapi_vn_option *p) |
65efcfce | 242 | { |
d62a17ae | 243 | while (p) { |
244 | struct rfapi_vn_option *next; | |
245 | ||
246 | next = p->next; | |
247 | XFREE(MTYPE_RFAPI_VN_OPTION, p); | |
248 | p = next; | |
249 | } | |
65efcfce LB |
250 | } |
251 | ||
252 | ||
d62a17ae | 253 | static void rfapi_info_free(struct rfapi_info *goner) |
65efcfce | 254 | { |
d62a17ae | 255 | if (goner) { |
256 | if (goner->tea_options) { | |
257 | rfapiFreeBgpTeaOptionChain(goner->tea_options); | |
258 | goner->tea_options = NULL; | |
259 | } | |
260 | if (goner->un_options) { | |
261 | rfapiFreeRfapiUnOptionChain(goner->un_options); | |
262 | goner->un_options = NULL; | |
263 | } | |
264 | if (goner->vn_options) { | |
265 | rfapiFreeRfapiVnOptionChain(goner->vn_options); | |
266 | goner->vn_options = NULL; | |
267 | } | |
268 | if (goner->timer) { | |
269 | struct rfapi_rib_tcb *tcb; | |
270 | ||
c4efd0f4 | 271 | tcb = goner->timer->arg; |
b3d6bc6e | 272 | thread_cancel(&goner->timer); |
d62a17ae | 273 | XFREE(MTYPE_RFAPI_RECENT_DELETE, tcb); |
d62a17ae | 274 | } |
275 | XFREE(MTYPE_RFAPI_INFO, goner); | |
276 | } | |
65efcfce LB |
277 | } |
278 | ||
279 | /* | |
280 | * Timer control block for recently-deleted and expired routes | |
281 | */ | |
d62a17ae | 282 | struct rfapi_rib_tcb { |
283 | struct rfapi_descriptor *rfd; | |
284 | struct skiplist *sl; | |
285 | struct rfapi_info *ri; | |
fe08ba7e | 286 | struct agg_node *rn; |
d62a17ae | 287 | int flags; |
65efcfce LB |
288 | #define RFAPI_RIB_TCB_FLAG_DELETED 0x00000001 |
289 | }; | |
290 | ||
291 | /* | |
292 | * remove route from rib | |
293 | */ | |
cc9f21da | 294 | static void rfapiRibExpireTimer(struct thread *t) |
65efcfce | 295 | { |
d62a17ae | 296 | struct rfapi_rib_tcb *tcb = t->arg; |
297 | ||
298 | RFAPI_RIB_CHECK_COUNTS(1, 0); | |
299 | ||
300 | /* | |
301 | * Forget reference to thread. Otherwise rfapi_info_free() will | |
302 | * attempt to free thread pointer as an option chain | |
303 | */ | |
304 | tcb->ri->timer = NULL; | |
305 | ||
306 | /* "deleted" skiplist frees ri, "active" doesn't */ | |
307 | assert(!skiplist_delete(tcb->sl, &tcb->ri->rk, NULL)); | |
308 | if (!tcb->sl->del) { | |
309 | /* | |
310 | * XXX in this case, skiplist has no delete function: we must | |
311 | * therefore delete rfapi_info explicitly. | |
312 | */ | |
313 | rfapi_info_free(tcb->ri); | |
314 | } | |
315 | ||
316 | if (skiplist_empty(tcb->sl)) { | |
317 | if (CHECK_FLAG(tcb->flags, RFAPI_RIB_TCB_FLAG_DELETED)) | |
318 | tcb->rn->aggregate = NULL; | |
319 | else { | |
320 | struct bgp *bgp = bgp_get_default(); | |
321 | tcb->rn->info = NULL; | |
322 | RFAPI_RIB_PREFIX_COUNT_DECR(tcb->rfd, bgp->rfapi); | |
323 | } | |
324 | skiplist_free(tcb->sl); | |
fe08ba7e | 325 | agg_unlock_node(tcb->rn); |
d62a17ae | 326 | } |
327 | ||
328 | XFREE(MTYPE_RFAPI_RECENT_DELETE, tcb); | |
329 | ||
330 | RFAPI_RIB_CHECK_COUNTS(1, 0); | |
65efcfce LB |
331 | } |
332 | ||
fe08ba7e DS |
333 | static void rfapiRibStartTimer(struct rfapi_descriptor *rfd, |
334 | struct rfapi_info *ri, | |
335 | struct agg_node *rn, /* route node attached to */ | |
336 | int deleted) | |
65efcfce | 337 | { |
d62a17ae | 338 | struct rfapi_rib_tcb *tcb = NULL; |
d62a17ae | 339 | |
b3d6bc6e MS |
340 | if (ri->timer) { |
341 | tcb = ri->timer->arg; | |
342 | thread_cancel(&ri->timer); | |
d62a17ae | 343 | } else { |
344 | tcb = XCALLOC(MTYPE_RFAPI_RECENT_DELETE, | |
345 | sizeof(struct rfapi_rib_tcb)); | |
346 | } | |
347 | tcb->rfd = rfd; | |
348 | tcb->ri = ri; | |
349 | tcb->rn = rn; | |
350 | if (deleted) { | |
351 | tcb->sl = (struct skiplist *)rn->aggregate; | |
352 | SET_FLAG(tcb->flags, RFAPI_RIB_TCB_FLAG_DELETED); | |
353 | } else { | |
354 | tcb->sl = (struct skiplist *)rn->info; | |
355 | UNSET_FLAG(tcb->flags, RFAPI_RIB_TCB_FLAG_DELETED); | |
356 | } | |
357 | ||
26a3ffd6 DS |
358 | vnc_zlog_debug_verbose("%s: rfd %p pfx %pRN life %u", __func__, rfd, rn, |
359 | ri->lifetime); | |
d62a17ae | 360 | ri->timer = NULL; |
361 | thread_add_timer(bm->master, rfapiRibExpireTimer, tcb, ri->lifetime, | |
362 | &ri->timer); | |
363 | assert(ri->timer); | |
65efcfce LB |
364 | } |
365 | ||
d62a17ae | 366 | extern void rfapi_rib_key_init(struct prefix *prefix, /* may be NULL */ |
367 | struct prefix_rd *rd, /* may be NULL */ | |
368 | struct prefix *aux, /* may be NULL */ | |
369 | struct rfapi_rib_key *rk) | |
370 | ||
cedb5a71 | 371 | { |
d62a17ae | 372 | memset((void *)rk, 0, sizeof(struct rfapi_rib_key)); |
373 | if (prefix) | |
374 | rk->vn = *prefix; | |
375 | if (rd) | |
376 | rk->rd = *rd; | |
377 | if (aux) | |
378 | rk->aux_prefix = *aux; | |
cedb5a71 LB |
379 | } |
380 | ||
65efcfce LB |
381 | /* |
382 | * Compares two <struct rfapi_rib_key>s | |
383 | */ | |
1a4189d4 | 384 | int rfapi_rib_key_cmp(const void *k1, const void *k2) |
65efcfce | 385 | { |
1a4189d4 DS |
386 | const struct rfapi_rib_key *a = (struct rfapi_rib_key *)k1; |
387 | const struct rfapi_rib_key *b = (struct rfapi_rib_key *)k2; | |
d62a17ae | 388 | int ret; |
65efcfce | 389 | |
d62a17ae | 390 | if (!a || !b) |
391 | return (a - b); | |
65efcfce | 392 | |
d62a17ae | 393 | ret = vnc_prefix_cmp(&a->vn, &b->vn); |
394 | if (ret) | |
395 | return ret; | |
65efcfce | 396 | |
d62a17ae | 397 | ret = vnc_prefix_cmp(&a->rd, &b->rd); |
398 | if (ret) | |
399 | return ret; | |
65efcfce | 400 | |
d62a17ae | 401 | ret = vnc_prefix_cmp(&a->aux_prefix, &b->aux_prefix); |
65efcfce | 402 | |
d62a17ae | 403 | return ret; |
65efcfce LB |
404 | } |
405 | ||
406 | ||
407 | /* | |
408 | * Note: this function will claim that two option chains are | |
409 | * different unless their option items are in identical order. | |
410 | * The consequence is that RFP updated responses can be sent | |
411 | * unnecessarily, or that they might contain nexthop items | |
412 | * that are not strictly needed. | |
413 | * | |
414 | * This function could be modified to compare option chains more | |
415 | * thoroughly, but it's not clear that the extra compuation would | |
416 | * be worth it. | |
417 | */ | |
d62a17ae | 418 | static int bgp_tea_options_cmp(struct bgp_tea_options *a, |
419 | struct bgp_tea_options *b) | |
65efcfce | 420 | { |
d62a17ae | 421 | int rc; |
422 | ||
423 | if (!a || !b) { | |
424 | return (a - b); | |
425 | } | |
65efcfce | 426 | |
d62a17ae | 427 | if (a->type != b->type) |
428 | return (a->type - b->type); | |
429 | if (a->length != b->length) | |
430 | return (a->length = b->length); | |
431 | if ((rc = memcmp(a->value, b->value, a->length))) | |
432 | return rc; | |
433 | if (!a->next != !b->next) { /* logical xor */ | |
434 | return (a->next - b->next); | |
435 | } | |
436 | if (a->next) | |
437 | return bgp_tea_options_cmp(a->next, b->next); | |
438 | return 0; | |
65efcfce LB |
439 | } |
440 | ||
d62a17ae | 441 | static int rfapi_info_cmp(struct rfapi_info *a, struct rfapi_info *b) |
65efcfce | 442 | { |
d62a17ae | 443 | int rc; |
65efcfce | 444 | |
d62a17ae | 445 | if (!a || !b) |
446 | return (a - b); | |
65efcfce | 447 | |
d62a17ae | 448 | if ((rc = rfapi_rib_key_cmp(&a->rk, &b->rk))) |
449 | return rc; | |
65efcfce | 450 | |
d62a17ae | 451 | if ((rc = vnc_prefix_cmp(&a->un, &b->un))) |
452 | return rc; | |
65efcfce | 453 | |
d62a17ae | 454 | if (a->cost != b->cost) |
455 | return (a->cost - b->cost); | |
65efcfce | 456 | |
d62a17ae | 457 | if (a->lifetime != b->lifetime) |
458 | return (a->lifetime - b->lifetime); | |
65efcfce | 459 | |
d62a17ae | 460 | if ((rc = bgp_tea_options_cmp(a->tea_options, b->tea_options))) |
461 | return rc; | |
65efcfce | 462 | |
d62a17ae | 463 | return 0; |
65efcfce LB |
464 | } |
465 | ||
d62a17ae | 466 | void rfapiRibClear(struct rfapi_descriptor *rfd) |
65efcfce | 467 | { |
d62a17ae | 468 | struct bgp *bgp; |
469 | afi_t afi; | |
65efcfce | 470 | |
d62a17ae | 471 | if (rfd->bgp) |
472 | bgp = rfd->bgp; | |
473 | else | |
474 | bgp = bgp_get_default(); | |
1e20238a | 475 | #ifdef DEBUG_L2_EXTRA |
d62a17ae | 476 | vnc_zlog_debug_verbose("%s: rfd=%p", __func__, rfd); |
65efcfce LB |
477 | #endif |
478 | ||
d62a17ae | 479 | for (afi = AFI_IP; afi < AFI_MAX; ++afi) { |
fe08ba7e DS |
480 | struct agg_node *pn; |
481 | struct agg_node *rn; | |
d62a17ae | 482 | |
483 | if (rfd->rib_pending[afi]) { | |
fe08ba7e DS |
484 | for (pn = agg_route_top(rfd->rib_pending[afi]); pn; |
485 | pn = agg_route_next(pn)) { | |
d62a17ae | 486 | if (pn->aggregate) { |
487 | /* | |
488 | * free references into the rfapi_info | |
489 | * structures before | |
490 | * freeing the structures themselves | |
491 | */ | |
492 | skiplist_free( | |
493 | (struct skiplist | |
494 | *)(pn->aggregate)); | |
495 | pn->aggregate = NULL; | |
fe08ba7e | 496 | agg_unlock_node( |
d62a17ae | 497 | pn); /* skiplist deleted */ |
498 | } | |
499 | /* | |
500 | * free the rfapi_info structures | |
501 | */ | |
502 | if (pn->info) { | |
503 | if (pn->info != (void *)1) { | |
6a154c88 | 504 | list_delete( |
996c9314 LB |
505 | (struct list * |
506 | *)(&pn->info)); | |
d62a17ae | 507 | } |
508 | pn->info = NULL; | |
affe9e99 | 509 | /* linklist or 1 deleted */ |
fe08ba7e | 510 | agg_unlock_node(pn); |
d62a17ae | 511 | } |
512 | } | |
513 | } | |
514 | if (rfd->rib[afi]) { | |
fe08ba7e DS |
515 | for (rn = agg_route_top(rfd->rib[afi]); rn; |
516 | rn = agg_route_next(rn)) { | |
d62a17ae | 517 | if (rn->info) { |
518 | ||
519 | struct rfapi_info *ri; | |
520 | ||
9d303b37 DL |
521 | while (0 == skiplist_first( |
522 | (struct skiplist *) | |
523 | rn->info, | |
524 | NULL, | |
525 | (void **)&ri)) { | |
d62a17ae | 526 | |
527 | rfapi_info_free(ri); | |
528 | skiplist_delete_first( | |
529 | (struct skiplist *) | |
530 | rn->info); | |
531 | } | |
532 | skiplist_free( | |
533 | (struct skiplist *)rn->info); | |
534 | rn->info = NULL; | |
fe08ba7e | 535 | agg_unlock_node(rn); |
d62a17ae | 536 | RFAPI_RIB_PREFIX_COUNT_DECR(rfd, |
537 | bgp->rfapi); | |
538 | } | |
539 | if (rn->aggregate) { | |
540 | ||
541 | struct rfapi_info *ri_del; | |
542 | ||
543 | /* delete skiplist & contents */ | |
544 | while (!skiplist_first( | |
545 | (struct skiplist | |
546 | *)(rn->aggregate), | |
547 | NULL, (void **)&ri_del)) { | |
548 | ||
549 | /* sl->del takes care of ri_del | |
550 | */ | |
551 | skiplist_delete_first(( | |
552 | struct skiplist | |
553 | *)(rn->aggregate)); | |
554 | } | |
555 | skiplist_free( | |
556 | (struct skiplist | |
557 | *)(rn->aggregate)); | |
558 | ||
559 | rn->aggregate = NULL; | |
fe08ba7e | 560 | agg_unlock_node(rn); |
d62a17ae | 561 | } |
562 | } | |
563 | } | |
564 | } | |
e208c8f9 DS |
565 | if (rfd->updated_responses_queue) |
566 | work_queue_free_and_null(&rfd->updated_responses_queue); | |
65efcfce LB |
567 | } |
568 | ||
569 | /* | |
570 | * Release all dynamically-allocated memory that is part of an HD's RIB | |
571 | */ | |
d62a17ae | 572 | void rfapiRibFree(struct rfapi_descriptor *rfd) |
65efcfce | 573 | { |
d62a17ae | 574 | afi_t afi; |
65efcfce LB |
575 | |
576 | ||
d62a17ae | 577 | /* |
578 | * NB rfd is typically detached from master list, so is not included | |
579 | * in the count performed by RFAPI_RIB_CHECK_COUNTS | |
580 | */ | |
65efcfce | 581 | |
d62a17ae | 582 | /* |
583 | * Free routes attached to radix trees | |
584 | */ | |
585 | rfapiRibClear(rfd); | |
65efcfce | 586 | |
d62a17ae | 587 | /* Now the uncounted rfapi_info's are freed, so the check should succeed |
588 | */ | |
589 | RFAPI_RIB_CHECK_COUNTS(1, 0); | |
65efcfce | 590 | |
d62a17ae | 591 | /* |
592 | * Free radix trees | |
593 | */ | |
594 | for (afi = AFI_IP; afi < AFI_MAX; ++afi) { | |
fe08ba7e DS |
595 | if (rfd->rib_pending[afi]) |
596 | agg_table_finish(rfd->rib_pending[afi]); | |
d62a17ae | 597 | rfd->rib_pending[afi] = NULL; |
65efcfce | 598 | |
fe08ba7e DS |
599 | if (rfd->rib[afi]) |
600 | agg_table_finish(rfd->rib[afi]); | |
d62a17ae | 601 | rfd->rib[afi] = NULL; |
65efcfce | 602 | |
fe08ba7e | 603 | /* NB agg_table_finish frees only prefix nodes, not chained |
d62a17ae | 604 | * info */ |
fe08ba7e DS |
605 | if (rfd->rsp_times[afi]) |
606 | agg_table_finish(rfd->rsp_times[afi]); | |
d62a17ae | 607 | rfd->rib[afi] = NULL; |
608 | } | |
65efcfce LB |
609 | } |
610 | ||
611 | /* | |
4b7e6066 | 612 | * Copies struct bgp_path_info to struct rfapi_info, except for rk fields and un |
65efcfce | 613 | */ |
40381db7 | 614 | static void rfapiRibBi2Ri(struct bgp_path_info *bpi, struct rfapi_info *ri, |
d62a17ae | 615 | uint32_t lifetime) |
65efcfce | 616 | { |
d62a17ae | 617 | struct bgp_attr_encap_subtlv *pEncap; |
618 | ||
40381db7 | 619 | ri->cost = rfapiRfpCost(bpi->attr); |
d62a17ae | 620 | ri->lifetime = lifetime; |
621 | ||
622 | /* This loop based on rfapiRouteInfo2NextHopEntry() */ | |
91ebf12c DS |
623 | for (pEncap = bgp_attr_get_vnc_subtlvs(bpi->attr); pEncap; |
624 | pEncap = pEncap->next) { | |
d62a17ae | 625 | struct bgp_tea_options *hop; |
626 | ||
627 | switch (pEncap->type) { | |
628 | case BGP_VNC_SUBTLV_TYPE_LIFETIME: | |
629 | /* use configured lifetime, not attr lifetime */ | |
630 | break; | |
631 | ||
632 | case BGP_VNC_SUBTLV_TYPE_RFPOPTION: | |
633 | hop = XCALLOC(MTYPE_BGP_TEA_OPTIONS, | |
634 | sizeof(struct bgp_tea_options)); | |
635 | assert(hop); | |
636 | hop->type = pEncap->value[0]; | |
637 | hop->length = pEncap->value[1]; | |
638 | hop->value = XCALLOC(MTYPE_BGP_TEA_OPTIONS_VALUE, | |
639 | pEncap->length - 2); | |
640 | assert(hop->value); | |
641 | memcpy(hop->value, pEncap->value + 2, | |
642 | pEncap->length - 2); | |
643 | if (hop->length > pEncap->length - 2) { | |
644 | zlog_warn( | |
3efd0893 | 645 | "%s: VNC subtlv length mismatch: RFP option says %d, attr says %d (shrinking)", |
d62a17ae | 646 | __func__, hop->length, |
647 | pEncap->length - 2); | |
648 | hop->length = pEncap->length - 2; | |
649 | } | |
650 | hop->next = ri->tea_options; | |
651 | ri->tea_options = hop; | |
652 | break; | |
653 | ||
654 | default: | |
655 | break; | |
656 | } | |
657 | } | |
658 | ||
659 | rfapi_un_options_free(ri->un_options); /* maybe free old version */ | |
40381db7 | 660 | ri->un_options = rfapi_encap_tlv_to_un_option(bpi->attr); |
d62a17ae | 661 | |
662 | /* | |
663 | * VN options | |
664 | */ | |
40381db7 DS |
665 | if (bpi->extra |
666 | && decode_rd_type(bpi->extra->vnc.import.rd.val) | |
d62a17ae | 667 | == RD_TYPE_VNC_ETH) { |
668 | /* ethernet route */ | |
669 | ||
670 | struct rfapi_vn_option *vo; | |
671 | ||
672 | vo = XCALLOC(MTYPE_RFAPI_VN_OPTION, | |
673 | sizeof(struct rfapi_vn_option)); | |
674 | assert(vo); | |
675 | ||
676 | vo->type = RFAPI_VN_OPTION_TYPE_L2ADDR; | |
677 | ||
40381db7 | 678 | /* copy from RD already stored in bpi, so we don't need it_node |
d62a17ae | 679 | */ |
40381db7 | 680 | memcpy(&vo->v.l2addr.macaddr, bpi->extra->vnc.import.rd.val + 2, |
28328ea9 | 681 | ETH_ALEN); |
d62a17ae | 682 | |
b53e67a3 | 683 | (void)rfapiEcommunityGetLNI(bgp_attr_get_ecommunity(bpi->attr), |
8cea9547 | 684 | &vo->v.l2addr.logical_net_id); |
b53e67a3 DA |
685 | (void)rfapiEcommunityGetEthernetTag( |
686 | bgp_attr_get_ecommunity(bpi->attr), | |
687 | &vo->v.l2addr.tag_id); | |
d62a17ae | 688 | |
689 | /* local_nve_id comes from RD */ | |
40381db7 | 690 | vo->v.l2addr.local_nve_id = bpi->extra->vnc.import.rd.val[1]; |
d62a17ae | 691 | |
692 | /* label comes from MP_REACH_NLRI label */ | |
40381db7 | 693 | vo->v.l2addr.label = decode_label(&bpi->extra->label[0]); |
d62a17ae | 694 | |
695 | rfapi_vn_options_free( | |
696 | ri->vn_options); /* maybe free old version */ | |
697 | ri->vn_options = vo; | |
698 | } | |
699 | ||
700 | /* | |
701 | * If there is an auxiliary IP address (L2 can have it), copy it | |
702 | */ | |
40381db7 DS |
703 | if (bpi->extra && bpi->extra->vnc.import.aux_prefix.family) { |
704 | ri->rk.aux_prefix = bpi->extra->vnc.import.aux_prefix; | |
d62a17ae | 705 | } |
65efcfce LB |
706 | } |
707 | ||
708 | /* | |
709 | * rfapiRibPreloadBi | |
710 | * | |
711 | * Install route into NVE RIB model so as to be consistent with | |
712 | * caller's response to rfapi_query(). | |
713 | * | |
714 | * Also: return indication to caller whether this specific route | |
715 | * should be included in the response to the NVE according to | |
716 | * the following tests: | |
717 | * | |
718 | * 1. If there were prior duplicates of this route in this same | |
719 | * query response, don't include the route. | |
720 | * | |
721 | * RETURN VALUE: | |
722 | * | |
723 | * 0 OK to include route in response | |
724 | * !0 do not include route in response | |
725 | */ | |
d62a17ae | 726 | int rfapiRibPreloadBi( |
fe08ba7e | 727 | struct agg_node *rfd_rib_node, /* NULL = don't preload or filter */ |
d62a17ae | 728 | struct prefix *pfx_vn, struct prefix *pfx_un, uint32_t lifetime, |
40381db7 | 729 | struct bgp_path_info *bpi) |
65efcfce | 730 | { |
d62a17ae | 731 | struct rfapi_descriptor *rfd; |
732 | struct skiplist *slRibPt = NULL; | |
733 | struct rfapi_info *ori = NULL; | |
734 | struct rfapi_rib_key rk; | |
fe08ba7e | 735 | struct agg_node *trn; |
d62a17ae | 736 | afi_t afi; |
26a3ffd6 | 737 | const struct prefix *p = agg_node_get_prefix(rfd_rib_node); |
d62a17ae | 738 | |
739 | if (!rfd_rib_node) | |
740 | return 0; | |
741 | ||
26a3ffd6 | 742 | afi = family2afi(p->family); |
d62a17ae | 743 | |
fe08ba7e | 744 | rfd = agg_get_table_info(agg_get_table(rfd_rib_node)); |
d62a17ae | 745 | |
746 | memset((void *)&rk, 0, sizeof(rk)); | |
747 | rk.vn = *pfx_vn; | |
40381db7 | 748 | rk.rd = bpi->extra->vnc.import.rd; |
d62a17ae | 749 | |
750 | /* | |
751 | * If there is an auxiliary IP address (L2 can have it), copy it | |
752 | */ | |
40381db7 DS |
753 | if (bpi->extra->vnc.import.aux_prefix.family) { |
754 | rk.aux_prefix = bpi->extra->vnc.import.aux_prefix; | |
d62a17ae | 755 | } |
756 | ||
757 | /* | |
758 | * is this route already in NVE's RIB? | |
759 | */ | |
760 | slRibPt = (struct skiplist *)rfd_rib_node->info; | |
761 | ||
762 | if (slRibPt && !skiplist_search(slRibPt, &rk, (void **)&ori)) { | |
763 | ||
764 | if ((ori->rsp_counter == rfd->rsp_counter) | |
765 | && (ori->last_sent_time == rfd->rsp_time)) { | |
766 | return -1; /* duplicate in this response */ | |
767 | } | |
768 | ||
769 | /* found: update contents of existing route in RIB */ | |
770 | ori->un = *pfx_un; | |
40381db7 | 771 | rfapiRibBi2Ri(bpi, ori, lifetime); |
d62a17ae | 772 | } else { |
773 | /* not found: add new route to RIB */ | |
774 | ori = rfapi_info_new(); | |
775 | ori->rk = rk; | |
776 | ori->un = *pfx_un; | |
40381db7 | 777 | rfapiRibBi2Ri(bpi, ori, lifetime); |
d62a17ae | 778 | |
779 | if (!slRibPt) { | |
780 | slRibPt = skiplist_new(0, rfapi_rib_key_cmp, NULL); | |
781 | rfd_rib_node->info = slRibPt; | |
fe08ba7e | 782 | agg_lock_node(rfd_rib_node); |
d62a17ae | 783 | RFAPI_RIB_PREFIX_COUNT_INCR(rfd, rfd->bgp->rfapi); |
784 | } | |
785 | skiplist_insert(slRibPt, &ori->rk, ori); | |
65efcfce LB |
786 | } |
787 | ||
d62a17ae | 788 | ori->last_sent_time = rfapi_time(NULL); |
789 | ||
790 | /* | |
791 | * poke timer | |
792 | */ | |
793 | RFAPI_RIB_CHECK_COUNTS(0, 0); | |
794 | rfapiRibStartTimer(rfd, ori, rfd_rib_node, 0); | |
795 | RFAPI_RIB_CHECK_COUNTS(0, 0); | |
796 | ||
797 | /* | |
798 | * Update last sent time for prefix | |
799 | */ | |
26a3ffd6 | 800 | trn = agg_node_get(rfd->rsp_times[afi], p); /* locks trn */ |
d62a17ae | 801 | trn->info = (void *)(uintptr_t)bgp_clock(); |
c10e14e9 | 802 | if (agg_node_get_lock_count(trn) > 1) |
fe08ba7e | 803 | agg_unlock_node(trn); |
d62a17ae | 804 | |
805 | return 0; | |
65efcfce LB |
806 | } |
807 | ||
808 | /* | |
809 | * Frees rfapi_info items at node | |
810 | * | |
811 | * Adjust 'rib' and 'rib_pending' as follows: | |
812 | * | |
813 | * If rib_pending node->info is 1 (magic value): | |
814 | * callback: NHL = RIB NHL with lifetime = withdraw_lifetime_value | |
815 | * RIB = remove all routes at the node | |
816 | * DONE | |
817 | * | |
818 | * For each item at rib node: | |
819 | * if not present in pending node, move RIB item to "delete list" | |
820 | * | |
821 | * For each item at pending rib node: | |
822 | * if present (same vn/un) in rib node with same lifetime & options, drop | |
823 | * matching item from pending node | |
824 | * | |
825 | * For each remaining item at pending rib node, add or replace item | |
826 | * at rib node. | |
827 | * | |
828 | * Construct NHL as concatenation of pending list + delete list | |
829 | * | |
830 | * Clear pending node | |
831 | */ | |
d62a17ae | 832 | static void process_pending_node(struct bgp *bgp, struct rfapi_descriptor *rfd, |
833 | afi_t afi, | |
fe08ba7e | 834 | struct agg_node *pn, /* pending node */ |
d62a17ae | 835 | struct rfapi_next_hop_entry **head, |
836 | struct rfapi_next_hop_entry **tail) | |
65efcfce | 837 | { |
d62a17ae | 838 | struct listnode *node = NULL; |
839 | struct listnode *nnode = NULL; | |
840 | struct rfapi_info *ri = NULL; /* happy valgrind */ | |
841 | struct rfapi_ip_prefix hp = {0}; /* pfx to put in NHE */ | |
fe08ba7e | 842 | struct agg_node *rn = NULL; |
d62a17ae | 843 | struct skiplist *slRibPt = NULL; /* rib list */ |
844 | struct skiplist *slPendPt = NULL; | |
845 | struct list *lPendCost = NULL; | |
846 | struct list *delete_list = NULL; | |
847 | int printedprefix = 0; | |
d62a17ae | 848 | int rib_node_started_nonempty = 0; |
849 | int sendingsomeroutes = 0; | |
26a3ffd6 | 850 | const struct prefix *p; |
65efcfce | 851 | #if DEBUG_PROCESS_PENDING_NODE |
d62a17ae | 852 | unsigned int count_rib_initial = 0; |
853 | unsigned int count_pend_vn_initial = 0; | |
854 | unsigned int count_pend_cost_initial = 0; | |
65efcfce LB |
855 | #endif |
856 | ||
d62a17ae | 857 | assert(pn); |
26a3ffd6 DS |
858 | p = agg_node_get_prefix(pn); |
859 | vnc_zlog_debug_verbose("%s: afi=%d, %pRN pn->info=%p", __func__, afi, | |
860 | pn, pn->info); | |
65efcfce | 861 | |
d62a17ae | 862 | if (AFI_L2VPN != afi) { |
26a3ffd6 | 863 | rfapiQprefix2Rprefix(p, &hp); |
d62a17ae | 864 | } |
65efcfce | 865 | |
d62a17ae | 866 | RFAPI_RIB_CHECK_COUNTS(1, 0); |
65efcfce | 867 | |
d62a17ae | 868 | /* |
869 | * Find corresponding RIB node | |
870 | */ | |
26a3ffd6 | 871 | rn = agg_node_get(rfd->rib[afi], p); /* locks rn */ |
65efcfce | 872 | |
d62a17ae | 873 | /* |
874 | * RIB skiplist has key=rfapi_addr={vn,un}, val = rfapi_info, | |
875 | * skiplist.del = NULL | |
876 | */ | |
877 | slRibPt = (struct skiplist *)rn->info; | |
878 | if (slRibPt) | |
879 | rib_node_started_nonempty = 1; | |
65efcfce | 880 | |
d62a17ae | 881 | slPendPt = (struct skiplist *)(pn->aggregate); |
882 | lPendCost = (struct list *)(pn->info); | |
65efcfce LB |
883 | |
884 | #if DEBUG_PROCESS_PENDING_NODE | |
d62a17ae | 885 | /* debugging */ |
886 | if (slRibPt) | |
887 | count_rib_initial = skiplist_count(slRibPt); | |
65efcfce | 888 | |
d62a17ae | 889 | if (slPendPt) |
890 | count_pend_vn_initial = skiplist_count(slPendPt); | |
65efcfce | 891 | |
d62a17ae | 892 | if (lPendCost && lPendCost != (struct list *)1) |
893 | count_pend_cost_initial = lPendCost->count; | |
65efcfce LB |
894 | #endif |
895 | ||
896 | ||
d62a17ae | 897 | /* |
898 | * Handle special case: delete all routes at prefix | |
899 | */ | |
900 | if (lPendCost == (struct list *)1) { | |
901 | vnc_zlog_debug_verbose("%s: lPendCost=1 => delete all", | |
902 | __func__); | |
903 | if (slRibPt && !skiplist_empty(slRibPt)) { | |
904 | delete_list = list_new(); | |
905 | while (0 | |
906 | == skiplist_first(slRibPt, NULL, (void **)&ri)) { | |
d62a17ae | 907 | listnode_add(delete_list, ri); |
908 | vnc_zlog_debug_verbose( | |
909 | "%s: after listnode_add, delete_list->count=%d", | |
910 | __func__, delete_list->count); | |
911 | rfapiFreeBgpTeaOptionChain(ri->tea_options); | |
912 | ri->tea_options = NULL; | |
913 | ||
914 | if (ri->timer) { | |
915 | struct rfapi_rib_tcb *tcb; | |
916 | ||
b3d6bc6e MS |
917 | tcb = ri->timer->arg; |
918 | thread_cancel(&ri->timer); | |
d62a17ae | 919 | XFREE(MTYPE_RFAPI_RECENT_DELETE, tcb); |
d62a17ae | 920 | } |
921 | ||
d62a17ae | 922 | vnc_zlog_debug_verbose( |
2dbe669b DA |
923 | "%s: put dl pfx=%pRN vn=%pFX un=%pFX cost=%d life=%d vn_options=%p", |
924 | __func__, pn, &ri->rk.vn, &ri->un, | |
925 | ri->cost, ri->lifetime, ri->vn_options); | |
d62a17ae | 926 | |
927 | skiplist_delete_first(slRibPt); | |
928 | } | |
929 | ||
930 | assert(skiplist_empty(slRibPt)); | |
931 | ||
932 | skiplist_free(slRibPt); | |
933 | rn->info = slRibPt = NULL; | |
fe08ba7e | 934 | agg_unlock_node(rn); |
d62a17ae | 935 | |
936 | lPendCost = pn->info = NULL; | |
fe08ba7e | 937 | agg_unlock_node(pn); |
d62a17ae | 938 | |
939 | goto callback; | |
940 | } | |
941 | if (slRibPt) { | |
942 | skiplist_free(slRibPt); | |
943 | rn->info = NULL; | |
fe08ba7e | 944 | agg_unlock_node(rn); |
d62a17ae | 945 | } |
946 | ||
947 | assert(!slPendPt); | |
948 | if (slPendPt) { /* TBD I think we can toss this block */ | |
949 | skiplist_free(slPendPt); | |
950 | pn->aggregate = NULL; | |
fe08ba7e | 951 | agg_unlock_node(pn); |
d62a17ae | 952 | } |
953 | ||
954 | pn->info = NULL; | |
fe08ba7e | 955 | agg_unlock_node(pn); |
d62a17ae | 956 | |
fe08ba7e | 957 | agg_unlock_node(rn); /* agg_node_get() */ |
d62a17ae | 958 | |
959 | if (rib_node_started_nonempty) { | |
960 | RFAPI_RIB_PREFIX_COUNT_DECR(rfd, bgp->rfapi); | |
961 | } | |
962 | ||
963 | RFAPI_RIB_CHECK_COUNTS(1, 0); | |
964 | ||
965 | return; | |
966 | } | |
967 | ||
968 | vnc_zlog_debug_verbose("%s: lPendCost->count=%d, slRibPt->count=%d", | |
969 | __func__, | |
970 | (lPendCost ? (int)lPendCost->count : -1), | |
971 | (slRibPt ? (int)slRibPt->count : -1)); | |
972 | ||
973 | /* | |
974 | * Iterate over routes at RIB Node. | |
975 | * If not found at Pending Node, delete from RIB Node and add to | |
976 | * deletelist | |
977 | * If found at Pending Node | |
978 | * If identical rfapi_info, delete from Pending Node | |
979 | */ | |
980 | if (slRibPt) { | |
981 | void *cursor = NULL; | |
982 | struct rfapi_info *ori; | |
983 | ||
984 | /* | |
985 | * Iterate over RIB List | |
986 | * | |
987 | */ | |
988 | while (!skiplist_next(slRibPt, NULL, (void **)&ori, &cursor)) { | |
989 | ||
990 | if (skiplist_search(slPendPt, &ori->rk, (void **)&ri)) { | |
991 | /* | |
992 | * Not in Pending list, so it should be deleted | |
993 | */ | |
994 | if (!delete_list) | |
995 | delete_list = list_new(); | |
996 | listnode_add(delete_list, ori); | |
997 | rfapiFreeBgpTeaOptionChain(ori->tea_options); | |
998 | ori->tea_options = NULL; | |
999 | if (ori->timer) { | |
1000 | struct rfapi_rib_tcb *tcb; | |
1001 | ||
b3d6bc6e MS |
1002 | tcb = ori->timer->arg; |
1003 | thread_cancel(&ori->timer); | |
d62a17ae | 1004 | XFREE(MTYPE_RFAPI_RECENT_DELETE, tcb); |
d62a17ae | 1005 | } |
65efcfce LB |
1006 | |
1007 | #if DEBUG_PROCESS_PENDING_NODE | |
d62a17ae | 1008 | /* deleted from slRibPt below, after we're done |
1009 | * iterating */ | |
1010 | vnc_zlog_debug_verbose( | |
1011 | "%s: slRibPt ri %p not matched in pending list, delete", | |
1012 | __func__, ori); | |
65efcfce LB |
1013 | #endif |
1014 | ||
d62a17ae | 1015 | } else { |
1016 | /* | |
1017 | * Found in pending list. If same lifetime, | |
1018 | * cost, options, | |
1019 | * then remove from pending list because the | |
1020 | * route | |
1021 | * hasn't changed. | |
1022 | */ | |
1023 | if (!rfapi_info_cmp(ori, ri)) { | |
1024 | skiplist_delete(slPendPt, &ri->rk, | |
1025 | NULL); | |
1026 | assert(lPendCost); | |
1027 | if (lPendCost) { | |
1028 | /* linear walk: might need | |
1029 | * optimization */ | |
1030 | listnode_delete(lPendCost, | |
1031 | ri); /* XXX | |
1032 | doesn't | |
1033 | free | |
1034 | data! | |
1035 | bug? */ | |
1036 | rfapi_info_free( | |
1037 | ri); /* grr... */ | |
1038 | } | |
1039 | } | |
65efcfce | 1040 | #if DEBUG_PROCESS_PENDING_NODE |
d62a17ae | 1041 | vnc_zlog_debug_verbose( |
1042 | "%s: slRibPt ri %p matched in pending list, %s", | |
1043 | __func__, ori, | |
1044 | (same ? "same info" | |
1045 | : "different info")); | |
65efcfce | 1046 | #endif |
d62a17ae | 1047 | } |
1048 | } | |
1049 | /* | |
1050 | * Go back and delete items from RIB | |
1051 | */ | |
1052 | if (delete_list) { | |
1053 | for (ALL_LIST_ELEMENTS_RO(delete_list, node, ri)) { | |
1054 | vnc_zlog_debug_verbose( | |
1055 | "%s: deleting ri %p from slRibPt", | |
1056 | __func__, ri); | |
1057 | assert(!skiplist_delete(slRibPt, &ri->rk, | |
1058 | NULL)); | |
1059 | } | |
1060 | if (skiplist_empty(slRibPt)) { | |
1061 | skiplist_free(slRibPt); | |
1062 | slRibPt = rn->info = NULL; | |
fe08ba7e | 1063 | agg_unlock_node(rn); |
d62a17ae | 1064 | } |
1065 | } | |
1066 | } | |
1067 | ||
1068 | RFAPI_RIB_CHECK_COUNTS(0, (delete_list ? delete_list->count : 0)); | |
1069 | ||
1070 | /* | |
1071 | * Iterate over routes at Pending Node | |
1072 | * | |
1073 | * If {vn} found at RIB Node, update RIB Node route contents to match PN | |
1074 | * If {vn} NOT found at RIB Node, add copy to RIB Node | |
1075 | */ | |
1076 | if (lPendCost) { | |
1077 | for (ALL_LIST_ELEMENTS_RO(lPendCost, node, ri)) { | |
1078 | ||
1079 | struct rfapi_info *ori; | |
1080 | ||
1081 | if (slRibPt | |
1082 | && !skiplist_search(slRibPt, &ri->rk, | |
1083 | (void **)&ori)) { | |
1084 | ||
1085 | /* found: update contents of existing route in | |
1086 | * RIB */ | |
1087 | ori->un = ri->un; | |
1088 | ori->cost = ri->cost; | |
1089 | ori->lifetime = ri->lifetime; | |
1090 | rfapiFreeBgpTeaOptionChain(ori->tea_options); | |
1091 | ori->tea_options = | |
1092 | rfapiOptionsDup(ri->tea_options); | |
1093 | ori->last_sent_time = rfapi_time(NULL); | |
1094 | ||
1095 | rfapiFreeRfapiVnOptionChain(ori->vn_options); | |
1096 | ori->vn_options = | |
1097 | rfapiVnOptionsDup(ri->vn_options); | |
1098 | ||
1099 | rfapiFreeRfapiUnOptionChain(ori->un_options); | |
1100 | ori->un_options = | |
1101 | rfapiUnOptionsDup(ri->un_options); | |
1102 | ||
1103 | vnc_zlog_debug_verbose( | |
1104 | "%s: matched lPendCost item %p in slRibPt, rewrote", | |
1105 | __func__, ri); | |
1106 | ||
1107 | } else { | |
1108 | ||
06b9f471 | 1109 | char buf_rd[RD_ADDRSTRLEN]; |
d62a17ae | 1110 | |
1111 | /* not found: add new route to RIB */ | |
1112 | ori = rfapi_info_new(); | |
1113 | ori->rk = ri->rk; | |
1114 | ori->un = ri->un; | |
1115 | ori->cost = ri->cost; | |
1116 | ori->lifetime = ri->lifetime; | |
1117 | ori->tea_options = | |
1118 | rfapiOptionsDup(ri->tea_options); | |
1119 | ori->last_sent_time = rfapi_time(NULL); | |
1120 | ori->vn_options = | |
1121 | rfapiVnOptionsDup(ri->vn_options); | |
1122 | ori->un_options = | |
1123 | rfapiUnOptionsDup(ri->un_options); | |
1124 | ||
1125 | if (!slRibPt) { | |
1126 | slRibPt = skiplist_new( | |
1127 | 0, rfapi_rib_key_cmp, NULL); | |
1128 | rn->info = slRibPt; | |
fe08ba7e | 1129 | agg_lock_node(rn); |
d62a17ae | 1130 | } |
1131 | skiplist_insert(slRibPt, &ori->rk, ori); | |
65efcfce LB |
1132 | |
1133 | #if DEBUG_RIB_SL_RD | |
d62a17ae | 1134 | prefix_rd2str(&ori->rk.rd, buf_rd, |
1135 | sizeof(buf_rd)); | |
65efcfce | 1136 | #else |
d62a17ae | 1137 | buf_rd[0] = 0; |
65efcfce LB |
1138 | #endif |
1139 | ||
d62a17ae | 1140 | vnc_zlog_debug_verbose( |
1141 | "%s: nomatch lPendCost item %p in slRibPt, added (rd=%s)", | |
1142 | __func__, ri, buf_rd); | |
1143 | } | |
1144 | ||
1145 | /* | |
1146 | * poke timer | |
1147 | */ | |
1148 | RFAPI_RIB_CHECK_COUNTS( | |
1149 | 0, (delete_list ? delete_list->count : 0)); | |
1150 | rfapiRibStartTimer(rfd, ori, rn, 0); | |
1151 | RFAPI_RIB_CHECK_COUNTS( | |
1152 | 0, (delete_list ? delete_list->count : 0)); | |
1153 | } | |
1154 | } | |
65efcfce LB |
1155 | |
1156 | ||
1157 | callback: | |
d62a17ae | 1158 | /* |
1159 | * Construct NHL as concatenation of pending list + delete list | |
1160 | */ | |
1161 | ||
1162 | ||
1163 | RFAPI_RIB_CHECK_COUNTS(0, (delete_list ? delete_list->count : 0)); | |
1164 | ||
1165 | if (lPendCost) { | |
1166 | ||
1167 | char buf[BUFSIZ]; | |
1168 | char buf2[BUFSIZ]; | |
1169 | ||
1170 | vnc_zlog_debug_verbose("%s: lPendCost->count now %d", __func__, | |
1171 | lPendCost->count); | |
26a3ffd6 | 1172 | vnc_zlog_debug_verbose("%s: For prefix %pRN (a)", __func__, pn); |
d62a17ae | 1173 | printedprefix = 1; |
1174 | ||
1175 | for (ALL_LIST_ELEMENTS(lPendCost, node, nnode, ri)) { | |
1176 | ||
1177 | struct rfapi_next_hop_entry *new; | |
fe08ba7e | 1178 | struct agg_node *trn; |
d62a17ae | 1179 | |
1180 | new = XCALLOC(MTYPE_RFAPI_NEXTHOP, | |
1181 | sizeof(struct rfapi_next_hop_entry)); | |
1182 | assert(new); | |
1183 | ||
1184 | if (ri->rk.aux_prefix.family) { | |
1185 | rfapiQprefix2Rprefix(&ri->rk.aux_prefix, | |
1186 | &new->prefix); | |
1187 | } else { | |
1188 | new->prefix = hp; | |
1189 | if (AFI_L2VPN == afi) { | |
1190 | /* hp is 0; need to set length to match | |
1191 | * AF of vn */ | |
1192 | new->prefix.length = | |
1193 | (ri->rk.vn.family == AF_INET) | |
1194 | ? 32 | |
1195 | : 128; | |
1196 | } | |
1197 | } | |
1198 | new->prefix.cost = ri->cost; | |
1199 | new->lifetime = ri->lifetime; | |
1200 | rfapiQprefix2Raddr(&ri->rk.vn, &new->vn_address); | |
1201 | rfapiQprefix2Raddr(&ri->un, &new->un_address); | |
1202 | /* free option chain from ri */ | |
1203 | rfapiFreeBgpTeaOptionChain(ri->tea_options); | |
1204 | ||
1205 | ri->tea_options = | |
1206 | NULL; /* option chain was transferred to NHL */ | |
1207 | ||
1208 | new->vn_options = ri->vn_options; | |
1209 | ri->vn_options = | |
1210 | NULL; /* option chain was transferred to NHL */ | |
1211 | ||
1212 | new->un_options = ri->un_options; | |
1213 | ri->un_options = | |
1214 | NULL; /* option chain was transferred to NHL */ | |
1215 | ||
1216 | if (*tail) | |
1217 | (*tail)->next = new; | |
1218 | *tail = new; | |
1219 | if (!*head) { | |
1220 | *head = new; | |
1221 | } | |
1222 | sendingsomeroutes = 1; | |
1223 | ||
1224 | ++rfd->stat_count_nh_reachable; | |
1225 | ++bgp->rfapi->stat.count_updated_response_updates; | |
1226 | ||
1227 | /* | |
1228 | * update this NVE's timestamp for this prefix | |
1229 | */ | |
fe08ba7e | 1230 | trn = agg_node_get(rfd->rsp_times[afi], |
26a3ffd6 | 1231 | p); /* locks trn */ |
d62a17ae | 1232 | trn->info = (void *)(uintptr_t)bgp_clock(); |
c10e14e9 | 1233 | if (agg_node_get_lock_count(trn) > 1) |
fe08ba7e | 1234 | agg_unlock_node(trn); |
d62a17ae | 1235 | |
1236 | rfapiRfapiIpAddr2Str(&new->vn_address, buf, BUFSIZ); | |
1237 | rfapiRfapiIpAddr2Str(&new->un_address, buf2, BUFSIZ); | |
1238 | vnc_zlog_debug_verbose( | |
1239 | "%s: add vn=%s un=%s cost=%d life=%d", | |
1240 | __func__, buf, buf2, new->prefix.cost, | |
1241 | new->lifetime); | |
1242 | } | |
1243 | } | |
1244 | ||
1245 | RFAPI_RIB_CHECK_COUNTS(0, (delete_list ? delete_list->count : 0)); | |
1246 | ||
1247 | if (delete_list) { | |
1248 | ||
1249 | char buf[BUFSIZ]; | |
1250 | char buf2[BUFSIZ]; | |
1251 | ||
1252 | if (!printedprefix) { | |
26a3ffd6 DS |
1253 | vnc_zlog_debug_verbose("%s: For prefix %pRN (d)", |
1254 | __func__, pn); | |
d62a17ae | 1255 | } |
1256 | vnc_zlog_debug_verbose("%s: delete_list has %d elements", | |
1257 | __func__, delete_list->count); | |
1258 | ||
1259 | RFAPI_RIB_CHECK_COUNTS(0, delete_list->count); | |
1260 | if (!CHECK_FLAG(bgp->rfapi_cfg->flags, | |
1261 | BGP_VNC_CONFIG_RESPONSE_REMOVAL_DISABLE)) { | |
1262 | ||
1263 | for (ALL_LIST_ELEMENTS(delete_list, node, nnode, ri)) { | |
1264 | ||
1265 | struct rfapi_next_hop_entry *new; | |
1266 | struct rfapi_info *ri_del; | |
1267 | ||
1268 | RFAPI_RIB_CHECK_COUNTS(0, delete_list->count); | |
1269 | new = XCALLOC( | |
1270 | MTYPE_RFAPI_NEXTHOP, | |
1271 | sizeof(struct rfapi_next_hop_entry)); | |
1272 | assert(new); | |
1273 | ||
1274 | if (ri->rk.aux_prefix.family) { | |
1275 | rfapiQprefix2Rprefix(&ri->rk.aux_prefix, | |
1276 | &new->prefix); | |
1277 | } else { | |
1278 | new->prefix = hp; | |
1279 | if (AFI_L2VPN == afi) { | |
1280 | /* hp is 0; need to set length | |
1281 | * to match AF of vn */ | |
1282 | new->prefix.length = | |
1283 | (ri->rk.vn.family | |
1284 | == AF_INET) | |
1285 | ? 32 | |
1286 | : 128; | |
1287 | } | |
1288 | } | |
1289 | ||
1290 | new->prefix.cost = ri->cost; | |
1291 | new->lifetime = RFAPI_REMOVE_RESPONSE_LIFETIME; | |
1292 | rfapiQprefix2Raddr(&ri->rk.vn, | |
1293 | &new->vn_address); | |
1294 | rfapiQprefix2Raddr(&ri->un, &new->un_address); | |
1295 | ||
1296 | new->vn_options = ri->vn_options; | |
1297 | ri->vn_options = NULL; /* option chain was | |
1298 | transferred to NHL */ | |
1299 | ||
1300 | new->un_options = ri->un_options; | |
1301 | ri->un_options = NULL; /* option chain was | |
1302 | transferred to NHL */ | |
1303 | ||
1304 | if (*tail) | |
1305 | (*tail)->next = new; | |
1306 | *tail = new; | |
1307 | if (!*head) { | |
1308 | *head = new; | |
1309 | } | |
1310 | ++rfd->stat_count_nh_removal; | |
1311 | ++bgp->rfapi->stat | |
1312 | .count_updated_response_deletes; | |
1313 | ||
1314 | rfapiRfapiIpAddr2Str(&new->vn_address, buf, | |
1315 | BUFSIZ); | |
1316 | rfapiRfapiIpAddr2Str(&new->un_address, buf2, | |
1317 | BUFSIZ); | |
1318 | vnc_zlog_debug_verbose( | |
1319 | "%s: DEL vn=%s un=%s cost=%d life=%d", | |
1320 | __func__, buf, buf2, new->prefix.cost, | |
1321 | new->lifetime); | |
1322 | ||
1323 | RFAPI_RIB_CHECK_COUNTS(0, delete_list->count); | |
1324 | /* | |
1325 | * Update/add to list of recent deletions at | |
1326 | * this prefix | |
1327 | */ | |
1328 | if (!rn->aggregate) { | |
1329 | rn->aggregate = skiplist_new( | |
1330 | 0, rfapi_rib_key_cmp, | |
1331 | (void (*)(void *)) | |
1332 | rfapi_info_free); | |
fe08ba7e | 1333 | agg_lock_node(rn); |
d62a17ae | 1334 | } |
1335 | RFAPI_RIB_CHECK_COUNTS(0, delete_list->count); | |
1336 | ||
1337 | /* sanity check lifetime */ | |
1338 | if (ri->lifetime | |
1339 | > RFAPI_LIFETIME_INFINITE_WITHDRAW_DELAY) | |
1340 | ri->lifetime = | |
1341 | RFAPI_LIFETIME_INFINITE_WITHDRAW_DELAY; | |
1342 | ||
1343 | RFAPI_RIB_CHECK_COUNTS(0, delete_list->count); | |
1344 | /* cancel normal expire timer */ | |
1345 | if (ri->timer) { | |
1346 | struct rfapi_rib_tcb *tcb; | |
1347 | ||
b3d6bc6e MS |
1348 | tcb = ri->timer->arg; |
1349 | thread_cancel(&ri->timer); | |
d62a17ae | 1350 | XFREE(MTYPE_RFAPI_RECENT_DELETE, tcb); |
d62a17ae | 1351 | } |
1352 | RFAPI_RIB_CHECK_COUNTS(0, delete_list->count); | |
1353 | ||
1354 | /* | |
1355 | * Look in "recently-deleted" list | |
1356 | */ | |
1357 | if (skiplist_search( | |
1358 | (struct skiplist *)(rn->aggregate), | |
1359 | &ri->rk, (void **)&ri_del)) { | |
1360 | ||
1361 | int rc; | |
1362 | ||
1363 | RFAPI_RIB_CHECK_COUNTS( | |
1364 | 0, delete_list->count); | |
1365 | /* | |
1366 | * NOT in "recently-deleted" list | |
1367 | */ | |
1368 | list_delete_node( | |
1369 | delete_list, | |
1370 | node); /* does not free ri */ | |
1371 | rc = skiplist_insert( | |
1372 | (struct skiplist | |
1373 | *)(rn->aggregate), | |
1374 | &ri->rk, ri); | |
1375 | assert(!rc); | |
1376 | ||
1377 | RFAPI_RIB_CHECK_COUNTS( | |
1378 | 0, delete_list->count); | |
1379 | rfapiRibStartTimer(rfd, ri, rn, 1); | |
1380 | RFAPI_RIB_CHECK_COUNTS( | |
1381 | 0, delete_list->count); | |
1382 | ri->last_sent_time = rfapi_time(NULL); | |
65efcfce | 1383 | #if DEBUG_RIB_SL_RD |
d62a17ae | 1384 | { |
06b9f471 DS |
1385 | char buf_rd[RD_ADDRSTRLEN]; |
1386 | ||
d62a17ae | 1387 | vnc_zlog_debug_verbose( |
1388 | "%s: move route to recently deleted list, rd=%s", | |
06b9f471 | 1389 | __func__, |
996c9314 LB |
1390 | prefix_rd2str( |
1391 | &ri->rk.rd, | |
1392 | buf_rd, | |
1393 | sizeof(buf_rd))); | |
d62a17ae | 1394 | } |
65efcfce LB |
1395 | #endif |
1396 | ||
d62a17ae | 1397 | } else { |
1398 | /* | |
1399 | * IN "recently-deleted" list | |
1400 | */ | |
1401 | RFAPI_RIB_CHECK_COUNTS( | |
1402 | 0, delete_list->count); | |
1403 | rfapiRibStartTimer(rfd, ri_del, rn, 1); | |
1404 | RFAPI_RIB_CHECK_COUNTS( | |
1405 | 0, delete_list->count); | |
1406 | ri->last_sent_time = rfapi_time(NULL); | |
1407 | } | |
1408 | } | |
1409 | } else { | |
1410 | vnc_zlog_debug_verbose( | |
1411 | "%s: response removal disabled, omitting removals", | |
1412 | __func__); | |
1413 | } | |
1414 | ||
1415 | delete_list->del = (void (*)(void *))rfapi_info_free; | |
6a154c88 | 1416 | list_delete(&delete_list); |
d62a17ae | 1417 | } |
1418 | ||
1419 | RFAPI_RIB_CHECK_COUNTS(0, 0); | |
1420 | ||
1421 | /* | |
fe08ba7e | 1422 | * Reset pending lists. The final agg_unlock_node() will probably |
d62a17ae | 1423 | * cause the pending node to be released. |
1424 | */ | |
1425 | if (slPendPt) { | |
1426 | skiplist_free(slPendPt); | |
1427 | pn->aggregate = NULL; | |
fe08ba7e | 1428 | agg_unlock_node(pn); |
d62a17ae | 1429 | } |
1430 | if (lPendCost) { | |
6a154c88 | 1431 | list_delete(&lPendCost); |
d62a17ae | 1432 | pn->info = NULL; |
fe08ba7e | 1433 | agg_unlock_node(pn); |
d62a17ae | 1434 | } |
1435 | RFAPI_RIB_CHECK_COUNTS(0, 0); | |
1436 | ||
1437 | if (rib_node_started_nonempty) { | |
1438 | if (!rn->info) { | |
1439 | RFAPI_RIB_PREFIX_COUNT_DECR(rfd, bgp->rfapi); | |
1440 | } | |
1441 | } else { | |
1442 | if (rn->info) { | |
1443 | RFAPI_RIB_PREFIX_COUNT_INCR(rfd, bgp->rfapi); | |
1444 | } | |
1445 | } | |
1446 | ||
1447 | if (sendingsomeroutes) | |
26a3ffd6 | 1448 | rfapiMonitorTimersRestart(rfd, p); |
d62a17ae | 1449 | |
fe08ba7e | 1450 | agg_unlock_node(rn); /* agg_node_get() */ |
d62a17ae | 1451 | |
1452 | RFAPI_RIB_CHECK_COUNTS(1, 0); | |
65efcfce LB |
1453 | } |
1454 | ||
1455 | /* | |
1456 | * regardless of targets, construct a single callback by doing | |
1457 | * only one traversal of the pending RIB | |
1458 | * | |
1459 | * | |
1460 | * Do callback | |
1461 | * | |
1462 | */ | |
d62a17ae | 1463 | static void rib_do_callback_onepass(struct rfapi_descriptor *rfd, afi_t afi) |
65efcfce | 1464 | { |
d62a17ae | 1465 | struct bgp *bgp = bgp_get_default(); |
1466 | struct rfapi_next_hop_entry *head = NULL; | |
1467 | struct rfapi_next_hop_entry *tail = NULL; | |
fe08ba7e | 1468 | struct agg_node *rn; |
65efcfce | 1469 | |
1e20238a | 1470 | #ifdef DEBUG_L2_EXTRA |
d62a17ae | 1471 | vnc_zlog_debug_verbose("%s: rfd=%p, afi=%d", __func__, rfd, afi); |
65efcfce LB |
1472 | #endif |
1473 | ||
d62a17ae | 1474 | if (!rfd->rib_pending[afi]) |
1475 | return; | |
65efcfce | 1476 | |
d62a17ae | 1477 | assert(bgp->rfapi); |
65efcfce | 1478 | |
fe08ba7e DS |
1479 | for (rn = agg_route_top(rfd->rib_pending[afi]); rn; |
1480 | rn = agg_route_next(rn)) { | |
d62a17ae | 1481 | process_pending_node(bgp, rfd, afi, rn, &head, &tail); |
1482 | } | |
65efcfce | 1483 | |
d62a17ae | 1484 | if (head) { |
1485 | rfapi_response_cb_t *f; | |
65efcfce LB |
1486 | |
1487 | #if DEBUG_NHL | |
d62a17ae | 1488 | vnc_zlog_debug_verbose("%s: response callback NHL follows:", |
1489 | __func__); | |
1490 | rfapiPrintNhl(NULL, head); | |
65efcfce LB |
1491 | #endif |
1492 | ||
d62a17ae | 1493 | if (rfd->response_cb) |
1494 | f = rfd->response_cb; | |
1495 | else | |
1496 | f = bgp->rfapi->rfp_methods.response_cb; | |
1497 | ||
1498 | bgp->rfapi->flags |= RFAPI_INCALLBACK; | |
1499 | vnc_zlog_debug_verbose("%s: invoking updated response callback", | |
1500 | __func__); | |
1501 | (*f)(head, rfd->cookie); | |
1502 | bgp->rfapi->flags &= ~RFAPI_INCALLBACK; | |
1503 | ++bgp->rfapi->response_updated_count; | |
1504 | } | |
65efcfce LB |
1505 | } |
1506 | ||
d62a17ae | 1507 | static wq_item_status rfapiRibDoQueuedCallback(struct work_queue *wq, |
1508 | void *data) | |
65efcfce | 1509 | { |
d62a17ae | 1510 | struct rfapi_descriptor *rfd; |
1511 | afi_t afi; | |
1512 | uint32_t queued_flag; | |
65efcfce | 1513 | |
d62a17ae | 1514 | RFAPI_RIB_CHECK_COUNTS(1, 0); |
65efcfce | 1515 | |
d62a17ae | 1516 | rfd = ((struct rfapi_updated_responses_queue *)data)->rfd; |
1517 | afi = ((struct rfapi_updated_responses_queue *)data)->afi; | |
65efcfce | 1518 | |
d62a17ae | 1519 | /* Make sure the HD wasn't closed after the work item was scheduled */ |
1520 | if (rfapi_check(rfd)) | |
1521 | return WQ_SUCCESS; | |
65efcfce | 1522 | |
d62a17ae | 1523 | rib_do_callback_onepass(rfd, afi); |
65efcfce | 1524 | |
d62a17ae | 1525 | queued_flag = RFAPI_QUEUED_FLAG(afi); |
65efcfce | 1526 | |
d62a17ae | 1527 | UNSET_FLAG(rfd->flags, queued_flag); |
65efcfce | 1528 | |
d62a17ae | 1529 | RFAPI_RIB_CHECK_COUNTS(1, 0); |
65efcfce | 1530 | |
d62a17ae | 1531 | return WQ_SUCCESS; |
65efcfce LB |
1532 | } |
1533 | ||
d62a17ae | 1534 | static void rfapiRibQueueItemDelete(struct work_queue *wq, void *data) |
65efcfce | 1535 | { |
d62a17ae | 1536 | XFREE(MTYPE_RFAPI_UPDATED_RESPONSE_QUEUE, data); |
65efcfce LB |
1537 | } |
1538 | ||
d62a17ae | 1539 | static void updated_responses_queue_init(struct rfapi_descriptor *rfd) |
65efcfce | 1540 | { |
d62a17ae | 1541 | if (rfd->updated_responses_queue) |
1542 | return; | |
1543 | ||
1544 | rfd->updated_responses_queue = | |
1545 | work_queue_new(bm->master, "rfapi updated responses"); | |
1546 | assert(rfd->updated_responses_queue); | |
1547 | ||
1548 | rfd->updated_responses_queue->spec.workfunc = rfapiRibDoQueuedCallback; | |
1549 | rfd->updated_responses_queue->spec.del_item_data = | |
1550 | rfapiRibQueueItemDelete; | |
1551 | rfd->updated_responses_queue->spec.max_retries = 0; | |
1552 | rfd->updated_responses_queue->spec.hold = 1; | |
65efcfce LB |
1553 | } |
1554 | ||
1555 | /* | |
1556 | * Called when an import table node is modified. Construct a | |
1557 | * new complete nexthop list, sorted by cost (lowest first), | |
1558 | * based on the import table node. | |
1559 | * | |
1560 | * Filter out duplicate nexthops (vn address). There should be | |
1561 | * only one UN address per VN address from the point of view of | |
1562 | * a given import table, so we can probably ignore UN addresses | |
1563 | * while filtering. | |
1564 | * | |
1565 | * Based on rfapiNhlAddNodeRoutes() | |
1566 | */ | |
d62a17ae | 1567 | void rfapiRibUpdatePendingNode( |
1568 | struct bgp *bgp, struct rfapi_descriptor *rfd, | |
1569 | struct rfapi_import_table *it, /* needed for L2 */ | |
fe08ba7e | 1570 | struct agg_node *it_node, uint32_t lifetime) |
65efcfce | 1571 | { |
26a3ffd6 | 1572 | const struct prefix *prefix; |
40381db7 | 1573 | struct bgp_path_info *bpi; |
fe08ba7e | 1574 | struct agg_node *pn; |
d62a17ae | 1575 | afi_t afi; |
1576 | uint32_t queued_flag; | |
1577 | int count = 0; | |
d62a17ae | 1578 | |
1579 | vnc_zlog_debug_verbose("%s: entry", __func__); | |
1580 | ||
1581 | if (CHECK_FLAG(bgp->rfapi_cfg->flags, BGP_VNC_CONFIG_CALLBACK_DISABLE)) | |
1582 | return; | |
1583 | ||
1584 | vnc_zlog_debug_verbose("%s: callbacks are not disabled", __func__); | |
1585 | ||
1586 | RFAPI_RIB_CHECK_COUNTS(1, 0); | |
1587 | ||
26a3ffd6 | 1588 | prefix = agg_node_get_prefix(it_node); |
d62a17ae | 1589 | afi = family2afi(prefix->family); |
2dbe669b | 1590 | vnc_zlog_debug_verbose("%s: prefix=%pFX", __func__, prefix); |
d62a17ae | 1591 | |
fe08ba7e | 1592 | pn = agg_node_get(rfd->rib_pending[afi], prefix); |
d62a17ae | 1593 | assert(pn); |
1594 | ||
1595 | vnc_zlog_debug_verbose("%s: pn->info=%p, pn->aggregate=%p", __func__, | |
1596 | pn->info, pn->aggregate); | |
1597 | ||
1598 | if (pn->aggregate) { | |
1599 | /* | |
1600 | * free references into the rfapi_info structures before | |
1601 | * freeing the structures themselves | |
1602 | */ | |
1603 | skiplist_free((struct skiplist *)(pn->aggregate)); | |
1604 | pn->aggregate = NULL; | |
fe08ba7e | 1605 | agg_unlock_node(pn); /* skiplist deleted */ |
d62a17ae | 1606 | } |
1607 | ||
1608 | ||
1609 | /* | |
1610 | * free the rfapi_info structures | |
1611 | */ | |
1612 | if (pn->info) { | |
1613 | if (pn->info != (void *)1) { | |
6a154c88 | 1614 | list_delete((struct list **)(&pn->info)); |
d62a17ae | 1615 | } |
1616 | pn->info = NULL; | |
fe08ba7e | 1617 | agg_unlock_node(pn); /* linklist or 1 deleted */ |
d62a17ae | 1618 | } |
1619 | ||
1620 | /* | |
40381db7 | 1621 | * The BPIs in the import table are already sorted by cost |
d62a17ae | 1622 | */ |
40381db7 | 1623 | for (bpi = it_node->info; bpi; bpi = bpi->next) { |
d62a17ae | 1624 | |
1625 | struct rfapi_info *ri; | |
1626 | struct prefix pfx_nh; | |
1627 | ||
40381db7 | 1628 | if (!bpi->extra) { |
d62a17ae | 1629 | /* shouldn't happen */ |
1630 | /* TBD increment error stats counter */ | |
1631 | continue; | |
1632 | } | |
1633 | ||
40381db7 | 1634 | rfapiNexthop2Prefix(bpi->attr, &pfx_nh); |
d62a17ae | 1635 | |
1636 | /* | |
1637 | * Omit route if nexthop is self | |
1638 | */ | |
1639 | if (CHECK_FLAG(bgp->rfapi_cfg->flags, | |
1640 | BGP_VNC_CONFIG_FILTER_SELF_FROM_RSP)) { | |
1641 | ||
1642 | struct prefix pfx_vn; | |
1643 | ||
cbb65f5e | 1644 | assert(!rfapiRaddr2Qprefix(&rfd->vn_addr, &pfx_vn)); |
d62a17ae | 1645 | if (prefix_same(&pfx_vn, &pfx_nh)) |
1646 | continue; | |
1647 | } | |
1648 | ||
1649 | ri = rfapi_info_new(); | |
1650 | ri->rk.vn = pfx_nh; | |
40381db7 | 1651 | ri->rk.rd = bpi->extra->vnc.import.rd; |
d62a17ae | 1652 | /* |
1653 | * If there is an auxiliary IP address (L2 can have it), copy it | |
1654 | */ | |
40381db7 DS |
1655 | if (bpi->extra->vnc.import.aux_prefix.family) { |
1656 | ri->rk.aux_prefix = bpi->extra->vnc.import.aux_prefix; | |
d62a17ae | 1657 | } |
1658 | ||
40381db7 | 1659 | if (rfapiGetUnAddrOfVpnBi(bpi, &ri->un)) { |
d62a17ae | 1660 | rfapi_info_free(ri); |
1661 | continue; | |
1662 | } | |
1663 | ||
1664 | if (!pn->aggregate) { | |
1665 | pn->aggregate = | |
1666 | skiplist_new(0, rfapi_rib_key_cmp, NULL); | |
fe08ba7e | 1667 | agg_lock_node(pn); |
d62a17ae | 1668 | } |
1669 | ||
1670 | /* | |
1671 | * If we have already added this nexthop, the insert will fail. | |
1672 | * Note that the skiplist key is a pointer INTO the rfapi_info | |
1673 | * structure which will be added to the "info" list. | |
1674 | * The skiplist entry VALUE is not used for anything but | |
1675 | * might be useful during debugging. | |
1676 | */ | |
1677 | if (skiplist_insert((struct skiplist *)pn->aggregate, &ri->rk, | |
1678 | ri)) { | |
1679 | ||
1680 | /* | |
1681 | * duplicate | |
1682 | */ | |
1683 | rfapi_info_free(ri); | |
1684 | continue; | |
1685 | } | |
1686 | ||
40381db7 | 1687 | rfapiRibBi2Ri(bpi, ri, lifetime); |
d62a17ae | 1688 | |
1689 | if (!pn->info) { | |
1690 | pn->info = list_new(); | |
1691 | ((struct list *)(pn->info))->del = | |
1692 | (void (*)(void *))rfapi_info_free; | |
fe08ba7e | 1693 | agg_lock_node(pn); |
d62a17ae | 1694 | } |
1695 | ||
1696 | listnode_add((struct list *)(pn->info), ri); | |
1697 | } | |
1698 | ||
1699 | if (pn->info) { | |
1700 | count = ((struct list *)(pn->info))->count; | |
1701 | } | |
1702 | ||
1703 | if (!count) { | |
1704 | assert(!pn->info); | |
1705 | assert(!pn->aggregate); | |
1706 | pn->info = (void *)1; /* magic value means this node has no | |
1707 | routes */ | |
fe08ba7e | 1708 | agg_lock_node(pn); |
d62a17ae | 1709 | } |
1710 | ||
fe08ba7e | 1711 | agg_unlock_node(pn); /* agg_node_get */ |
d62a17ae | 1712 | |
1713 | queued_flag = RFAPI_QUEUED_FLAG(afi); | |
1714 | ||
1715 | if (!CHECK_FLAG(rfd->flags, queued_flag)) { | |
1716 | ||
1717 | struct rfapi_updated_responses_queue *urq; | |
1718 | ||
1719 | urq = XCALLOC(MTYPE_RFAPI_UPDATED_RESPONSE_QUEUE, | |
1720 | sizeof(struct rfapi_updated_responses_queue)); | |
1721 | assert(urq); | |
1722 | if (!rfd->updated_responses_queue) | |
1723 | updated_responses_queue_init(rfd); | |
1724 | ||
1725 | SET_FLAG(rfd->flags, queued_flag); | |
1726 | urq->rfd = rfd; | |
1727 | urq->afi = afi; | |
1728 | work_queue_add(rfd->updated_responses_queue, urq); | |
1729 | } | |
1730 | RFAPI_RIB_CHECK_COUNTS(1, 0); | |
65efcfce LB |
1731 | } |
1732 | ||
d62a17ae | 1733 | void rfapiRibUpdatePendingNodeSubtree( |
1734 | struct bgp *bgp, struct rfapi_descriptor *rfd, | |
fe08ba7e DS |
1735 | struct rfapi_import_table *it, struct agg_node *it_node, |
1736 | struct agg_node *omit_subtree, /* may be NULL */ | |
d62a17ae | 1737 | uint32_t lifetime) |
65efcfce | 1738 | { |
d62a17ae | 1739 | /* FIXME: need to find a better way here to work without sticking our |
1740 | * hands in node->link */ | |
fe08ba7e DS |
1741 | if (agg_node_left(it_node) |
1742 | && (agg_node_left(it_node) != omit_subtree)) { | |
1743 | if (agg_node_left(it_node)->info) | |
1744 | rfapiRibUpdatePendingNode( | |
1745 | bgp, rfd, it, agg_node_left(it_node), lifetime); | |
1746 | rfapiRibUpdatePendingNodeSubtree(bgp, rfd, it, | |
1747 | agg_node_left(it_node), | |
d62a17ae | 1748 | omit_subtree, lifetime); |
1749 | } | |
1750 | ||
fe08ba7e DS |
1751 | if (agg_node_right(it_node) |
1752 | && (agg_node_right(it_node) != omit_subtree)) { | |
1753 | if (agg_node_right(it_node)->info) | |
d62a17ae | 1754 | rfapiRibUpdatePendingNode(bgp, rfd, it, |
fe08ba7e DS |
1755 | agg_node_right(it_node), |
1756 | lifetime); | |
1757 | rfapiRibUpdatePendingNodeSubtree(bgp, rfd, it, | |
1758 | agg_node_right(it_node), | |
d62a17ae | 1759 | omit_subtree, lifetime); |
1760 | } | |
65efcfce LB |
1761 | } |
1762 | ||
1763 | /* | |
1764 | * RETURN VALUE | |
1765 | * | |
1766 | * 0 allow prefix to be included in response | |
1767 | * !0 don't allow prefix to be included in response | |
1768 | */ | |
d62a17ae | 1769 | int rfapiRibFTDFilterRecentPrefix( |
1770 | struct rfapi_descriptor *rfd, | |
fe08ba7e | 1771 | struct agg_node *it_rn, /* import table node */ |
d62a17ae | 1772 | struct prefix *pfx_target_original) /* query target */ |
65efcfce | 1773 | { |
d62a17ae | 1774 | struct bgp *bgp = rfd->bgp; |
26a3ffd6 DS |
1775 | const struct prefix *p = agg_node_get_prefix(it_rn); |
1776 | afi_t afi = family2afi(p->family); | |
d62a17ae | 1777 | time_t prefix_time; |
fe08ba7e | 1778 | struct agg_node *trn; |
d62a17ae | 1779 | |
1780 | /* | |
1781 | * Not in FTD mode, so allow prefix | |
1782 | */ | |
1783 | if (bgp->rfapi_cfg->rfp_cfg.download_type != RFAPI_RFP_DOWNLOAD_FULL) | |
1784 | return 0; | |
1785 | ||
1786 | /* | |
1787 | * TBD | |
1788 | * This matches behavior of now-obsolete rfapiRibFTDFilterRecent(), | |
1789 | * but we need to decide if that is correct. | |
1790 | */ | |
26a3ffd6 | 1791 | if (p->family == AF_ETHERNET) |
d62a17ae | 1792 | return 0; |
65efcfce | 1793 | |
1e20238a | 1794 | #ifdef DEBUG_FTD_FILTER_RECENT |
d62a17ae | 1795 | { |
2dbe669b DA |
1796 | vnc_zlog_debug_verbose("%s: prefix %pFX", __func__, |
1797 | agg_node_get_prefix(it_rn)); | |
d62a17ae | 1798 | } |
65efcfce LB |
1799 | #endif |
1800 | ||
d62a17ae | 1801 | /* |
1802 | * prefix covers target address, so allow prefix | |
1803 | */ | |
26a3ffd6 | 1804 | if (prefix_match(p, pfx_target_original)) { |
1e20238a | 1805 | #ifdef DEBUG_FTD_FILTER_RECENT |
d62a17ae | 1806 | vnc_zlog_debug_verbose("%s: prefix covers target, allowed", |
1807 | __func__); | |
65efcfce | 1808 | #endif |
d62a17ae | 1809 | return 0; |
1810 | } | |
65efcfce | 1811 | |
d62a17ae | 1812 | /* |
1813 | * check this NVE's timestamp for this prefix | |
1814 | */ | |
26a3ffd6 | 1815 | trn = agg_node_get(rfd->rsp_times[afi], p); /* locks trn */ |
d62a17ae | 1816 | prefix_time = (time_t)trn->info; |
c10e14e9 | 1817 | if (agg_node_get_lock_count(trn) > 1) |
fe08ba7e | 1818 | agg_unlock_node(trn); |
65efcfce | 1819 | |
1e20238a | 1820 | #ifdef DEBUG_FTD_FILTER_RECENT |
d62a17ae | 1821 | vnc_zlog_debug_verbose("%s: last sent time %lu, last allowed time %lu", |
1822 | __func__, prefix_time, | |
1823 | rfd->ftd_last_allowed_time); | |
65efcfce LB |
1824 | #endif |
1825 | ||
d62a17ae | 1826 | /* |
1827 | * haven't sent this prefix, which doesn't cover target address, | |
1828 | * to NVE since ftd_advertisement_interval, so OK to send now. | |
1829 | */ | |
1830 | if (prefix_time <= rfd->ftd_last_allowed_time) | |
1831 | return 0; | |
65efcfce | 1832 | |
d62a17ae | 1833 | return 1; |
65efcfce LB |
1834 | } |
1835 | ||
1836 | /* | |
1837 | * Call when rfapi returns from rfapi_query() so the RIB reflects | |
1838 | * the routes sent to the NVE before the first updated response | |
1839 | * | |
1840 | * Also: remove duplicates from response. Caller should use returned | |
1841 | * value of nexthop chain. | |
1842 | */ | |
1843 | struct rfapi_next_hop_entry * | |
d62a17ae | 1844 | rfapiRibPreload(struct bgp *bgp, struct rfapi_descriptor *rfd, |
1845 | struct rfapi_next_hop_entry *response, int use_eth_resolution) | |
65efcfce | 1846 | { |
d62a17ae | 1847 | struct rfapi_next_hop_entry *nhp; |
1848 | struct rfapi_next_hop_entry *nhp_next; | |
1849 | struct rfapi_next_hop_entry *head = NULL; | |
1850 | struct rfapi_next_hop_entry *tail = NULL; | |
1851 | time_t new_last_sent_time; | |
1852 | ||
1853 | vnc_zlog_debug_verbose("%s: loading response=%p, use_eth_resolution=%d", | |
1854 | __func__, response, use_eth_resolution); | |
1855 | ||
1856 | new_last_sent_time = rfapi_time(NULL); | |
1857 | ||
1858 | for (nhp = response; nhp; nhp = nhp_next) { | |
1859 | ||
1860 | struct prefix pfx; | |
1861 | struct rfapi_rib_key rk; | |
1862 | afi_t afi; | |
1863 | struct rfapi_info *ri; | |
1864 | int need_insert; | |
fe08ba7e | 1865 | struct agg_node *rn; |
d62a17ae | 1866 | int rib_node_started_nonempty = 0; |
fe08ba7e | 1867 | struct agg_node *trn; |
d62a17ae | 1868 | int allowed = 0; |
1869 | ||
1870 | /* save in case we delete nhp */ | |
1871 | nhp_next = nhp->next; | |
1872 | ||
1873 | if (nhp->lifetime == RFAPI_REMOVE_RESPONSE_LIFETIME) { | |
1874 | /* | |
1875 | * weird, shouldn't happen | |
1876 | */ | |
1877 | vnc_zlog_debug_verbose( | |
1878 | "%s: got nhp->lifetime == RFAPI_REMOVE_RESPONSE_LIFETIME", | |
1879 | __func__); | |
1880 | continue; | |
1881 | } | |
1882 | ||
1883 | ||
1884 | if (use_eth_resolution) { | |
1885 | /* get the prefix of the ethernet address in the L2 | |
1886 | * option */ | |
1887 | struct rfapi_l2address_option *pL2o; | |
1888 | struct rfapi_vn_option *vo; | |
1889 | ||
1890 | /* | |
1891 | * Look for VN option of type | |
1892 | * RFAPI_VN_OPTION_TYPE_L2ADDR | |
1893 | */ | |
1894 | for (pL2o = NULL, vo = nhp->vn_options; vo; | |
1895 | vo = vo->next) { | |
1896 | if (RFAPI_VN_OPTION_TYPE_L2ADDR == vo->type) { | |
1897 | pL2o = &vo->v.l2addr; | |
1898 | break; | |
1899 | } | |
1900 | } | |
1901 | ||
1902 | if (!pL2o) { | |
1903 | /* | |
1904 | * not supposed to happen | |
1905 | */ | |
1906 | vnc_zlog_debug_verbose("%s: missing L2 info", | |
1907 | __func__); | |
1908 | continue; | |
1909 | } | |
1910 | ||
1911 | afi = AFI_L2VPN; | |
1912 | rfapiL2o2Qprefix(pL2o, &pfx); | |
1913 | } else { | |
1914 | rfapiRprefix2Qprefix(&nhp->prefix, &pfx); | |
1915 | afi = family2afi(pfx.family); | |
1916 | } | |
1917 | ||
1918 | /* | |
1919 | * TBD for ethernet, rib must know the right way to distinguish | |
1920 | * duplicate routes | |
1921 | * | |
1922 | * Current approach: prefix is key to radix tree; then | |
1923 | * each prefix has a set of routes with unique VN addrs | |
1924 | */ | |
1925 | ||
1926 | /* | |
1927 | * Look up prefix in RIB | |
1928 | */ | |
fe08ba7e | 1929 | rn = agg_node_get(rfd->rib[afi], &pfx); /* locks rn */ |
d62a17ae | 1930 | |
1931 | if (rn->info) { | |
1932 | rib_node_started_nonempty = 1; | |
1933 | } else { | |
1934 | rn->info = skiplist_new(0, rfapi_rib_key_cmp, NULL); | |
fe08ba7e | 1935 | agg_lock_node(rn); |
d62a17ae | 1936 | } |
1937 | ||
1938 | /* | |
1939 | * Look up route at prefix | |
1940 | */ | |
1941 | need_insert = 0; | |
1942 | memset((void *)&rk, 0, sizeof(rk)); | |
1943 | assert(!rfapiRaddr2Qprefix(&nhp->vn_address, &rk.vn)); | |
1944 | ||
1945 | if (use_eth_resolution) { | |
1946 | /* copy what came from aux_prefix to rk.aux_prefix */ | |
1947 | rfapiRprefix2Qprefix(&nhp->prefix, &rk.aux_prefix); | |
1948 | if (RFAPI_0_PREFIX(&rk.aux_prefix) | |
1949 | && RFAPI_HOST_PREFIX(&rk.aux_prefix)) { | |
1950 | /* mark as "none" if nhp->prefix is 0/32 or | |
1951 | * 0/128 */ | |
c7ca5ccf | 1952 | rk.aux_prefix.family = AF_UNSPEC; |
d62a17ae | 1953 | } |
1954 | } | |
65efcfce LB |
1955 | |
1956 | #if DEBUG_NHL | |
d62a17ae | 1957 | { |
872ed4c7 | 1958 | char str_aux_prefix[PREFIX_STRLEN]; |
d62a17ae | 1959 | |
d62a17ae | 1960 | str_aux_prefix[0] = 0; |
1961 | ||
872ed4c7 DS |
1962 | prefix2str(&rk.aux_prefix, str_aux_prefix, |
1963 | sizeof(str_aux_prefix)); | |
d62a17ae | 1964 | |
1965 | if (!rk.aux_prefix.family) { | |
1966 | } | |
1967 | vnc_zlog_debug_verbose( | |
2dbe669b DA |
1968 | "%s: rk.vn=%pFX rk.aux_prefix=%s", __func__, |
1969 | &rk.vn, | |
d62a17ae | 1970 | (rk.aux_prefix.family ? str_aux_prefix : "-")); |
1971 | } | |
1972 | vnc_zlog_debug_verbose( | |
1973 | "%s: RIB skiplist for this prefix follows", __func__); | |
b54892e0 DS |
1974 | rfapiRibShowRibSl(NULL, agg_node_get_prefix(rn), |
1975 | (struct skiplist *)rn->info); | |
65efcfce LB |
1976 | #endif |
1977 | ||
1978 | ||
d62a17ae | 1979 | if (!skiplist_search((struct skiplist *)rn->info, &rk, |
1980 | (void **)&ri)) { | |
1981 | /* | |
1982 | * Already have this route; make values match | |
1983 | */ | |
1984 | rfapiFreeRfapiUnOptionChain(ri->un_options); | |
1985 | ri->un_options = NULL; | |
1986 | rfapiFreeRfapiVnOptionChain(ri->vn_options); | |
1987 | ri->vn_options = NULL; | |
65efcfce LB |
1988 | |
1989 | #if DEBUG_NHL | |
d62a17ae | 1990 | vnc_zlog_debug_verbose("%s: found in RIB", __func__); |
65efcfce LB |
1991 | #endif |
1992 | ||
d62a17ae | 1993 | /* |
1994 | * Filter duplicate routes from initial response. | |
1995 | * Check timestamps to avoid wraparound problems | |
1996 | */ | |
1997 | if ((ri->rsp_counter != rfd->rsp_counter) | |
1998 | || (ri->last_sent_time != new_last_sent_time)) { | |
65efcfce LB |
1999 | |
2000 | #if DEBUG_NHL | |
d62a17ae | 2001 | vnc_zlog_debug_verbose( |
2002 | "%s: allowed due to counter/timestamp diff", | |
2003 | __func__); | |
65efcfce | 2004 | #endif |
d62a17ae | 2005 | allowed = 1; |
2006 | } | |
65efcfce | 2007 | |
d62a17ae | 2008 | } else { |
65efcfce LB |
2009 | |
2010 | #if DEBUG_NHL | |
d62a17ae | 2011 | vnc_zlog_debug_verbose( |
2012 | "%s: allowed due to not yet in RIB", __func__); | |
65efcfce | 2013 | #endif |
d62a17ae | 2014 | /* not found: add new route to RIB */ |
2015 | ri = rfapi_info_new(); | |
2016 | need_insert = 1; | |
2017 | allowed = 1; | |
2018 | } | |
2019 | ||
2020 | ri->rk = rk; | |
2021 | assert(!rfapiRaddr2Qprefix(&nhp->un_address, &ri->un)); | |
2022 | ri->cost = nhp->prefix.cost; | |
2023 | ri->lifetime = nhp->lifetime; | |
2024 | ri->vn_options = rfapiVnOptionsDup(nhp->vn_options); | |
2025 | ri->rsp_counter = rfd->rsp_counter; | |
2026 | ri->last_sent_time = rfapi_time(NULL); | |
2027 | ||
2028 | if (need_insert) { | |
2029 | int rc; | |
2030 | rc = skiplist_insert((struct skiplist *)rn->info, | |
2031 | &ri->rk, ri); | |
2032 | assert(!rc); | |
2033 | } | |
2034 | ||
2035 | if (!rib_node_started_nonempty) { | |
2036 | RFAPI_RIB_PREFIX_COUNT_INCR(rfd, bgp->rfapi); | |
2037 | } | |
2038 | ||
2039 | RFAPI_RIB_CHECK_COUNTS(0, 0); | |
2040 | rfapiRibStartTimer(rfd, ri, rn, 0); | |
2041 | RFAPI_RIB_CHECK_COUNTS(0, 0); | |
2042 | ||
fe08ba7e | 2043 | agg_unlock_node(rn); |
d62a17ae | 2044 | |
2045 | /* | |
2046 | * update this NVE's timestamp for this prefix | |
2047 | */ | |
fe08ba7e | 2048 | trn = agg_node_get(rfd->rsp_times[afi], &pfx); /* locks trn */ |
d62a17ae | 2049 | trn->info = (void *)(uintptr_t)bgp_clock(); |
c10e14e9 | 2050 | if (agg_node_get_lock_count(trn) > 1) |
fe08ba7e | 2051 | agg_unlock_node(trn); |
d62a17ae | 2052 | |
2dbe669b DA |
2053 | vnc_zlog_debug_verbose( |
2054 | "%s: added pfx=%pFX nh[vn]=%pFX, cost=%u, lifetime=%u, allowed=%d", | |
2055 | __func__, &pfx, &rk.vn, nhp->prefix.cost, nhp->lifetime, | |
2056 | allowed); | |
d62a17ae | 2057 | |
2058 | if (allowed) { | |
2059 | if (tail) | |
2060 | (tail)->next = nhp; | |
2061 | tail = nhp; | |
2062 | if (!head) { | |
2063 | head = nhp; | |
2064 | } | |
2065 | } else { | |
2066 | rfapi_un_options_free(nhp->un_options); | |
2067 | nhp->un_options = NULL; | |
2068 | rfapi_vn_options_free(nhp->vn_options); | |
2069 | nhp->vn_options = NULL; | |
2070 | ||
2071 | XFREE(MTYPE_RFAPI_NEXTHOP, nhp); | |
d62a17ae | 2072 | } |
2073 | } | |
2074 | ||
2075 | if (tail) | |
2076 | tail->next = NULL; | |
2077 | return head; | |
65efcfce LB |
2078 | } |
2079 | ||
d62a17ae | 2080 | void rfapiRibPendingDeleteRoute(struct bgp *bgp, struct rfapi_import_table *it, |
fe08ba7e | 2081 | afi_t afi, struct agg_node *it_node) |
65efcfce | 2082 | { |
d62a17ae | 2083 | struct rfapi_descriptor *rfd; |
2084 | struct listnode *node; | |
26a3ffd6 | 2085 | const struct prefix *p = agg_node_get_prefix(it_node); |
d62a17ae | 2086 | |
26a3ffd6 DS |
2087 | vnc_zlog_debug_verbose("%s: entry, it=%p, afi=%d, it_node=%p, pfx=%pRN", |
2088 | __func__, it, afi, it_node, it_node); | |
d62a17ae | 2089 | |
2090 | if (AFI_L2VPN == afi) { | |
2091 | /* | |
2092 | * ethernet import tables are per-LNI and each ethernet monitor | |
2093 | * identifies the rfd that owns it. | |
2094 | */ | |
2095 | struct rfapi_monitor_eth *m; | |
fe08ba7e | 2096 | struct agg_node *rn; |
d62a17ae | 2097 | struct skiplist *sl; |
2098 | void *cursor; | |
2099 | int rc; | |
2100 | ||
2101 | /* | |
2102 | * route-specific monitors | |
2103 | */ | |
2104 | if ((sl = RFAPI_MONITOR_ETH(it_node))) { | |
2105 | ||
2106 | vnc_zlog_debug_verbose( | |
2107 | "%s: route-specific skiplist: %p", __func__, | |
2108 | sl); | |
2109 | ||
2110 | for (cursor = NULL, | |
8998807f | 2111 | rc = skiplist_next(sl, NULL, (void **)&m, &cursor); |
d62a17ae | 2112 | !rc; rc = skiplist_next(sl, NULL, (void **)&m, |
8998807f | 2113 | &cursor)) { |
65efcfce LB |
2114 | |
2115 | #if DEBUG_PENDING_DELETE_ROUTE | |
d62a17ae | 2116 | vnc_zlog_debug_verbose("%s: eth monitor rfd=%p", |
2117 | __func__, m->rfd); | |
65efcfce | 2118 | #endif |
d62a17ae | 2119 | /* |
2120 | * If we have already sent a route with this | |
2121 | * prefix to this | |
2122 | * NVE, it's OK to send an update with the | |
2123 | * delete | |
2124 | */ | |
fe08ba7e | 2125 | if ((rn = agg_node_lookup(m->rfd->rib[afi], |
26a3ffd6 | 2126 | p))) { |
d62a17ae | 2127 | rfapiRibUpdatePendingNode( |
2128 | bgp, m->rfd, it, it_node, | |
2129 | m->rfd->response_lifetime); | |
fe08ba7e | 2130 | agg_unlock_node(rn); |
d62a17ae | 2131 | } |
2132 | } | |
2133 | } | |
2134 | ||
2135 | /* | |
2136 | * all-routes/FTD monitors | |
2137 | */ | |
2138 | for (m = it->eth0_queries; m; m = m->next) { | |
65efcfce | 2139 | #if DEBUG_PENDING_DELETE_ROUTE |
d62a17ae | 2140 | vnc_zlog_debug_verbose("%s: eth0 monitor rfd=%p", |
2141 | __func__, m->rfd); | |
65efcfce | 2142 | #endif |
d62a17ae | 2143 | /* |
2144 | * If we have already sent a route with this prefix to | |
2145 | * this | |
2146 | * NVE, it's OK to send an update with the delete | |
2147 | */ | |
26a3ffd6 | 2148 | if ((rn = agg_node_lookup(m->rfd->rib[afi], p))) { |
d62a17ae | 2149 | rfapiRibUpdatePendingNode( |
2150 | bgp, m->rfd, it, it_node, | |
2151 | m->rfd->response_lifetime); | |
94f7f37d | 2152 | agg_unlock_node(rn); |
d62a17ae | 2153 | } |
2154 | } | |
2155 | ||
2156 | } else { | |
2157 | /* | |
2158 | * Find RFDs that reference this import table | |
2159 | */ | |
2160 | for (ALL_LIST_ELEMENTS_RO(&bgp->rfapi->descriptors, node, | |
2161 | rfd)) { | |
2162 | ||
fe08ba7e | 2163 | struct agg_node *rn; |
d62a17ae | 2164 | |
2165 | vnc_zlog_debug_verbose( | |
2166 | "%s: comparing rfd(%p)->import_table=%p to it=%p", | |
2167 | __func__, rfd, rfd->import_table, it); | |
2168 | ||
2169 | if (rfd->import_table != it) | |
2170 | continue; | |
2171 | ||
2172 | vnc_zlog_debug_verbose("%s: matched rfd %p", __func__, | |
2173 | rfd); | |
2174 | ||
2175 | /* | |
2176 | * If we have sent a response to this NVE with this | |
2177 | * prefix | |
2178 | * previously, we should send an updated response. | |
2179 | */ | |
26a3ffd6 | 2180 | if ((rn = agg_node_lookup(rfd->rib[afi], p))) { |
d62a17ae | 2181 | rfapiRibUpdatePendingNode( |
2182 | bgp, rfd, it, it_node, | |
2183 | rfd->response_lifetime); | |
fe08ba7e | 2184 | agg_unlock_node(rn); |
d62a17ae | 2185 | } |
2186 | } | |
2187 | } | |
65efcfce LB |
2188 | } |
2189 | ||
d62a17ae | 2190 | void rfapiRibShowResponsesSummary(void *stream) |
65efcfce | 2191 | { |
d62a17ae | 2192 | int (*fp)(void *, const char *, ...); |
2193 | struct vty *vty; | |
2194 | void *out; | |
2195 | const char *vty_newline; | |
2196 | struct bgp *bgp = bgp_get_default(); | |
2197 | ||
2198 | int nves = 0; | |
2199 | int nves_with_nonempty_ribs = 0; | |
2200 | struct rfapi_descriptor *rfd; | |
2201 | struct listnode *node; | |
2202 | ||
d62a17ae | 2203 | if (rfapiStream2Vty(stream, &fp, &vty, &out, &vty_newline) == 0) |
2204 | return; | |
9b86009a RW |
2205 | if (!bgp) { |
2206 | fp(out, "Unable to find default BGP instance\n"); | |
2207 | return; | |
2208 | } | |
d62a17ae | 2209 | |
2210 | fp(out, "%-24s ", "Responses: (Prefixes)"); | |
2211 | fp(out, "%-8s %-8u ", "Active:", bgp->rfapi->rib_prefix_count_total); | |
2212 | fp(out, "%-8s %-8u", | |
2213 | "Maximum:", bgp->rfapi->rib_prefix_count_total_max); | |
2214 | fp(out, "\n"); | |
2215 | ||
2216 | fp(out, "%-24s ", " (Updated)"); | |
2217 | fp(out, "%-8s %-8u ", | |
2218 | "Update:", bgp->rfapi->stat.count_updated_response_updates); | |
2219 | fp(out, "%-8s %-8u", | |
2220 | "Remove:", bgp->rfapi->stat.count_updated_response_deletes); | |
2221 | fp(out, "%-8s %-8u", "Total:", | |
2222 | bgp->rfapi->stat.count_updated_response_updates | |
2223 | + bgp->rfapi->stat.count_updated_response_deletes); | |
2224 | fp(out, "\n"); | |
2225 | ||
2226 | fp(out, "%-24s ", " (NVEs)"); | |
2227 | for (ALL_LIST_ELEMENTS_RO(&bgp->rfapi->descriptors, node, rfd)) { | |
2228 | ++nves; | |
2229 | if (rfd->rib_prefix_count) | |
2230 | ++nves_with_nonempty_ribs; | |
2231 | } | |
2232 | fp(out, "%-8s %-8u ", "Active:", nves_with_nonempty_ribs); | |
2233 | fp(out, "%-8s %-8u", "Total:", nves); | |
2234 | fp(out, "\n"); | |
65efcfce LB |
2235 | } |
2236 | ||
d62a17ae | 2237 | void rfapiRibShowResponsesSummaryClear(void) |
65efcfce | 2238 | { |
d62a17ae | 2239 | struct bgp *bgp = bgp_get_default(); |
65efcfce | 2240 | |
d62a17ae | 2241 | bgp->rfapi->rib_prefix_count_total_max = |
2242 | bgp->rfapi->rib_prefix_count_total; | |
65efcfce LB |
2243 | } |
2244 | ||
d62a17ae | 2245 | static int print_rib_sl(int (*fp)(void *, const char *, ...), struct vty *vty, |
2246 | void *out, struct skiplist *sl, int deleted, | |
2247 | char *str_pfx, int *printedprefix) | |
65efcfce | 2248 | { |
d62a17ae | 2249 | struct rfapi_info *ri; |
2250 | int rc; | |
2251 | void *cursor; | |
2252 | int routes_displayed = 0; | |
2253 | ||
2254 | cursor = NULL; | |
2255 | for (rc = skiplist_next(sl, NULL, (void **)&ri, &cursor); !rc; | |
2256 | rc = skiplist_next(sl, NULL, (void **)&ri, &cursor)) { | |
2257 | ||
872ed4c7 DS |
2258 | char str_vn[PREFIX_STRLEN]; |
2259 | char str_un[PREFIX_STRLEN]; | |
d62a17ae | 2260 | char str_lifetime[BUFSIZ]; |
2261 | char str_age[BUFSIZ]; | |
2262 | char *p; | |
06b9f471 | 2263 | char str_rd[RD_ADDRSTRLEN]; |
d62a17ae | 2264 | |
2265 | ++routes_displayed; | |
2266 | ||
872ed4c7 | 2267 | prefix2str(&ri->rk.vn, str_vn, sizeof(str_vn)); |
d62a17ae | 2268 | p = index(str_vn, '/'); |
2269 | if (p) | |
2270 | *p = 0; | |
2271 | ||
872ed4c7 | 2272 | prefix2str(&ri->un, str_un, sizeof(str_un)); |
d62a17ae | 2273 | p = index(str_un, '/'); |
2274 | if (p) | |
2275 | *p = 0; | |
2276 | ||
2277 | rfapiFormatSeconds(ri->lifetime, str_lifetime, BUFSIZ); | |
1e20238a | 2278 | #ifdef RFAPI_REGISTRATIONS_REPORT_AGE |
d62a17ae | 2279 | rfapiFormatAge(ri->last_sent_time, str_age, BUFSIZ); |
65efcfce | 2280 | #else |
d62a17ae | 2281 | { |
2282 | time_t now = rfapi_time(NULL); | |
2283 | time_t expire = | |
2284 | ri->last_sent_time + (time_t)ri->lifetime; | |
2285 | /* allow for delayed/async removal */ | |
2286 | rfapiFormatSeconds((expire > now ? expire - now : 1), | |
2287 | str_age, BUFSIZ); | |
2288 | } | |
65efcfce LB |
2289 | #endif |
2290 | ||
d62a17ae | 2291 | str_rd[0] = 0; /* start empty */ |
65efcfce | 2292 | #if DEBUG_RIB_SL_RD |
06b9f471 | 2293 | prefix_rd2str(&ri->rk.rd, str_rd, sizeof(str_rd)); |
65efcfce LB |
2294 | #endif |
2295 | ||
06b9f471 | 2296 | fp(out, " %c %-20s %-15s %-15s %-4u %-8s %-8s %s\n", |
d62a17ae | 2297 | deleted ? 'r' : ' ', *printedprefix ? "" : str_pfx, str_vn, |
2298 | str_un, ri->cost, str_lifetime, str_age, str_rd); | |
65efcfce | 2299 | |
d62a17ae | 2300 | if (!*printedprefix) |
2301 | *printedprefix = 1; | |
2302 | } | |
2303 | return routes_displayed; | |
65efcfce LB |
2304 | } |
2305 | ||
2306 | #if DEBUG_NHL | |
2307 | /* | |
2308 | * This one is for debugging (set stream to NULL to send output to log) | |
2309 | */ | |
d62a17ae | 2310 | static void rfapiRibShowRibSl(void *stream, struct prefix *pfx, |
2311 | struct skiplist *sl) | |
65efcfce | 2312 | { |
d62a17ae | 2313 | int (*fp)(void *, const char *, ...); |
2314 | struct vty *vty; | |
2315 | void *out; | |
2316 | const char *vty_newline; | |
65efcfce | 2317 | |
d62a17ae | 2318 | int nhs_displayed = 0; |
872ed4c7 | 2319 | char str_pfx[PREFIX_STRLEN]; |
d62a17ae | 2320 | int printedprefix = 0; |
65efcfce | 2321 | |
d62a17ae | 2322 | if (rfapiStream2Vty(stream, &fp, &vty, &out, &vty_newline) == 0) |
2323 | return; | |
65efcfce | 2324 | |
872ed4c7 | 2325 | prefix2str(pfx, str_pfx, sizeof(str_pfx)); |
65efcfce | 2326 | |
d62a17ae | 2327 | nhs_displayed += |
2328 | print_rib_sl(fp, vty, out, sl, 0, str_pfx, &printedprefix); | |
65efcfce LB |
2329 | } |
2330 | #endif | |
2331 | ||
d62a17ae | 2332 | void rfapiRibShowResponses(void *stream, struct prefix *pfx_match, |
2333 | int show_removed) | |
65efcfce | 2334 | { |
d62a17ae | 2335 | int (*fp)(void *, const char *, ...); |
2336 | struct vty *vty; | |
2337 | void *out; | |
2338 | const char *vty_newline; | |
2339 | ||
2340 | struct rfapi_descriptor *rfd; | |
2341 | struct listnode *node; | |
2342 | ||
2343 | struct bgp *bgp = bgp_get_default(); | |
2344 | int printedheader = 0; | |
2345 | int routes_total = 0; | |
2346 | int nhs_total = 0; | |
2347 | int prefixes_total = 0; | |
2348 | int prefixes_displayed = 0; | |
2349 | int nves_total = 0; | |
2350 | int nves_with_routes = 0; | |
2351 | int nves_displayed = 0; | |
2352 | int routes_displayed = 0; | |
2353 | int nhs_displayed = 0; | |
2354 | ||
2355 | if (rfapiStream2Vty(stream, &fp, &vty, &out, &vty_newline) == 0) | |
2356 | return; | |
9b86009a RW |
2357 | if (!bgp) { |
2358 | fp(out, "Unable to find default BGP instance\n"); | |
2359 | return; | |
2360 | } | |
2361 | ||
d62a17ae | 2362 | /* |
2363 | * loop over NVEs | |
2364 | */ | |
2365 | for (ALL_LIST_ELEMENTS_RO(&bgp->rfapi->descriptors, node, rfd)) { | |
2366 | ||
2367 | int printednve = 0; | |
2368 | afi_t afi; | |
2369 | ||
2370 | ++nves_total; | |
2371 | if (rfd->rib_prefix_count) | |
2372 | ++nves_with_routes; | |
2373 | ||
2374 | for (afi = AFI_IP; afi < AFI_MAX; ++afi) { | |
2375 | ||
fe08ba7e | 2376 | struct agg_node *rn; |
d62a17ae | 2377 | |
2378 | if (!rfd->rib[afi]) | |
2379 | continue; | |
2380 | ||
fe08ba7e DS |
2381 | for (rn = agg_route_top(rfd->rib[afi]); rn; |
2382 | rn = agg_route_next(rn)) { | |
26a3ffd6 DS |
2383 | const struct prefix *p = |
2384 | agg_node_get_prefix(rn); | |
d62a17ae | 2385 | struct skiplist *sl; |
872ed4c7 | 2386 | char str_pfx[PREFIX_STRLEN]; |
d62a17ae | 2387 | int printedprefix = 0; |
2388 | ||
2389 | if (!show_removed) | |
2390 | sl = rn->info; | |
2391 | else | |
2392 | sl = rn->aggregate; | |
2393 | ||
2394 | if (!sl) | |
2395 | continue; | |
2396 | ||
2397 | routes_total++; | |
2398 | nhs_total += skiplist_count(sl); | |
2399 | ++prefixes_total; | |
2400 | ||
26a3ffd6 DS |
2401 | if (pfx_match && !prefix_match(pfx_match, p) |
2402 | && !prefix_match(p, pfx_match)) | |
d62a17ae | 2403 | continue; |
2404 | ||
2405 | ++prefixes_displayed; | |
2406 | ||
2407 | if (!printedheader) { | |
2408 | ++printedheader; | |
2409 | ||
2410 | fp(out, "\n[%s]\n", | |
2411 | show_removed ? "Removed" : "Active"); | |
2412 | fp(out, "%-15s %-15s\n", "Querying VN", | |
2413 | "Querying UN"); | |
2414 | fp(out, | |
2415 | " %-20s %-15s %-15s %4s %-8s %-8s\n", | |
2416 | "Prefix", "Registered VN", | |
2417 | "Registered UN", "Cost", "Lifetime", | |
1e20238a | 2418 | #ifdef RFAPI_REGISTRATIONS_REPORT_AGE |
d62a17ae | 2419 | "Age" |
65efcfce | 2420 | #else |
d62a17ae | 2421 | "Remaining" |
65efcfce | 2422 | #endif |
1e20238a | 2423 | ); |
d62a17ae | 2424 | } |
2425 | if (!printednve) { | |
2426 | char str_vn[BUFSIZ]; | |
2427 | char str_un[BUFSIZ]; | |
2428 | ||
2429 | ++printednve; | |
2430 | ++nves_displayed; | |
2431 | ||
2432 | fp(out, "%-15s %-15s\n", | |
2433 | rfapiRfapiIpAddr2Str(&rfd->vn_addr, | |
2434 | str_vn, BUFSIZ), | |
2435 | rfapiRfapiIpAddr2Str(&rfd->un_addr, | |
2436 | str_un, | |
2437 | BUFSIZ)); | |
2438 | } | |
26a3ffd6 | 2439 | prefix2str(p, str_pfx, sizeof(str_pfx)); |
d62a17ae | 2440 | // fp(out, " %s\n", buf); /* prefix */ |
2441 | ||
2442 | routes_displayed++; | |
2443 | nhs_displayed += print_rib_sl( | |
2444 | fp, vty, out, sl, show_removed, str_pfx, | |
2445 | &printedprefix); | |
2446 | } | |
2447 | } | |
2448 | } | |
2449 | ||
2450 | if (routes_total) { | |
2451 | fp(out, "\n"); | |
2452 | fp(out, "Displayed %u NVEs, and %u out of %u %s prefixes", | |
2453 | nves_displayed, routes_displayed, routes_total, | |
2454 | show_removed ? "removed" : "active"); | |
2455 | if (nhs_displayed != routes_displayed | |
2456 | || nhs_total != routes_total) | |
2457 | fp(out, " with %u out of %u next hops", nhs_displayed, | |
2458 | nhs_total); | |
2459 | fp(out, "\n"); | |
2460 | } | |
65efcfce | 2461 | } |