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24268cd0 PR |
1 | /* |
2 | * Zebra EVPN for VxLAN code | |
3 | * Copyright (C) 2016, 2017 Cumulus Networks, Inc. | |
4 | * | |
5 | * This file is part of FRR. | |
6 | * | |
7 | * FRR is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * FRR is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with FRR; see the file COPYING. If not, write to the Free | |
19 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | * 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "hash.h" | |
b2998086 | 26 | #include "interface.h" |
24268cd0 | 27 | #include "jhash.h" |
24268cd0 PR |
28 | #include "memory.h" |
29 | #include "prefix.h" | |
24268cd0 | 30 | #include "vlan.h" |
b2998086 | 31 | #include "json.h" |
24268cd0 | 32 | |
b2998086 | 33 | #include "zebra/zserv.h" |
24268cd0 | 34 | #include "zebra/debug.h" |
b2998086 | 35 | #include "zebra/zebra_router.h" |
24268cd0 | 36 | #include "zebra/zebra_memory.h" |
b2998086 | 37 | #include "zebra/zebra_errors.h" |
24268cd0 | 38 | #include "zebra/zebra_vrf.h" |
b2998086 | 39 | #include "zebra/zebra_evpn.h" |
24268cd0 | 40 | #include "zebra/zebra_evpn_mh.h" |
b2998086 PR |
41 | #include "zebra/zebra_evpn_mac.h" |
42 | #include "zebra/zebra_evpn_neigh.h" | |
24268cd0 | 43 | |
24268cd0 | 44 | DEFINE_MTYPE_STATIC(ZEBRA, MAC, "EVPN MAC"); |
24268cd0 PR |
45 | |
46 | /* | |
47 | * Return number of valid MACs in an EVPN's MAC hash table - all | |
48 | * remote MACs and non-internal (auto) local MACs count. | |
49 | */ | |
b2998086 | 50 | uint32_t num_valid_macs(zebra_evpn_t *zevpn) |
24268cd0 PR |
51 | { |
52 | unsigned int i; | |
53 | uint32_t num_macs = 0; | |
54 | struct hash *hash; | |
55 | struct hash_bucket *hb; | |
56 | zebra_mac_t *mac; | |
57 | ||
58 | hash = zevpn->mac_table; | |
59 | if (!hash) | |
60 | return num_macs; | |
61 | for (i = 0; i < hash->size; i++) { | |
62 | for (hb = hash->index[i]; hb; hb = hb->next) { | |
63 | mac = (zebra_mac_t *)hb->data; | |
64 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
65 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) | |
66 | || !CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) | |
67 | num_macs++; | |
68 | } | |
69 | } | |
70 | ||
71 | return num_macs; | |
72 | } | |
73 | ||
b2998086 | 74 | uint32_t num_dup_detected_macs(zebra_evpn_t *zevpn) |
24268cd0 PR |
75 | { |
76 | unsigned int i; | |
77 | uint32_t num_macs = 0; | |
78 | struct hash *hash; | |
79 | struct hash_bucket *hb; | |
80 | zebra_mac_t *mac; | |
81 | ||
82 | hash = zevpn->mac_table; | |
83 | if (!hash) | |
84 | return num_macs; | |
85 | for (i = 0; i < hash->size; i++) { | |
86 | for (hb = hash->index[i]; hb; hb = hb->next) { | |
87 | mac = (zebra_mac_t *)hb->data; | |
88 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
89 | num_macs++; | |
90 | } | |
91 | } | |
92 | ||
93 | return num_macs; | |
94 | } | |
95 | ||
b2998086 PR |
96 | /* |
97 | * Install remote MAC into the forwarding plane. | |
98 | */ | |
99 | int zebra_evpn_rem_mac_install(zebra_evpn_t *zevpn, zebra_mac_t *mac, | |
100 | bool was_static) | |
24268cd0 | 101 | { |
b2998086 PR |
102 | const struct zebra_if *zif, *br_zif; |
103 | const struct zebra_l2info_vxlan *vxl; | |
104 | bool sticky; | |
105 | enum zebra_dplane_result res; | |
106 | const struct interface *br_ifp; | |
107 | vlanid_t vid; | |
108 | uint32_t nhg_id; | |
109 | struct in_addr vtep_ip; | |
24268cd0 | 110 | |
b2998086 PR |
111 | if (!(mac->flags & ZEBRA_MAC_REMOTE)) |
112 | return 0; | |
113 | ||
114 | zif = zevpn->vxlan_if->info; | |
115 | if (!zif) | |
116 | return -1; | |
117 | ||
118 | br_ifp = zif->brslave_info.br_if; | |
119 | if (br_ifp == NULL) | |
120 | return -1; | |
121 | ||
122 | vxl = &zif->l2info.vxl; | |
123 | ||
124 | sticky = !!CHECK_FLAG(mac->flags, | |
125 | (ZEBRA_MAC_STICKY | ZEBRA_MAC_REMOTE_DEF_GW)); | |
126 | ||
127 | /* If nexthop group for the FDB entry is inactive (not programmed in | |
128 | * the dataplane) the MAC entry cannot be installed | |
129 | */ | |
130 | if (mac->es) { | |
131 | if (!(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE)) | |
132 | return -1; | |
133 | nhg_id = mac->es->nhg_id; | |
134 | vtep_ip.s_addr = 0; | |
135 | } else { | |
136 | nhg_id = 0; | |
137 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
24268cd0 PR |
138 | } |
139 | ||
b2998086 PR |
140 | br_zif = (const struct zebra_if *)(br_ifp->info); |
141 | ||
142 | if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif)) | |
143 | vid = vxl->access_vlan; | |
144 | else | |
145 | vid = 0; | |
146 | ||
147 | res = dplane_rem_mac_add(zevpn->vxlan_if, br_ifp, vid, &mac->macaddr, | |
148 | vtep_ip, sticky, nhg_id, was_static); | |
149 | if (res != ZEBRA_DPLANE_REQUEST_FAILURE) | |
150 | return 0; | |
151 | else | |
152 | return -1; | |
24268cd0 PR |
153 | } |
154 | ||
b2998086 PR |
155 | /* |
156 | * Uninstall remote MAC from the forwarding plane. | |
157 | */ | |
158 | int zebra_evpn_rem_mac_uninstall(zebra_evpn_t *zevpn, zebra_mac_t *mac) | |
24268cd0 | 159 | { |
b2998086 PR |
160 | const struct zebra_if *zif, *br_zif; |
161 | const struct zebra_l2info_vxlan *vxl; | |
162 | struct in_addr vtep_ip; | |
163 | const struct interface *ifp, *br_ifp; | |
164 | vlanid_t vid; | |
165 | enum zebra_dplane_result res; | |
24268cd0 | 166 | |
b2998086 PR |
167 | if (!(mac->flags & ZEBRA_MAC_REMOTE)) |
168 | return 0; | |
169 | ||
170 | if (!zevpn->vxlan_if) { | |
171 | if (IS_ZEBRA_DEBUG_VXLAN) | |
172 | zlog_debug( | |
173 | "VNI %u hash %p couldn't be uninstalled - no intf", | |
174 | zevpn->vni, zevpn); | |
175 | return -1; | |
176 | } | |
24268cd0 | 177 | |
b2998086 PR |
178 | zif = zevpn->vxlan_if->info; |
179 | if (!zif) | |
180 | return -1; | |
24268cd0 | 181 | |
b2998086 PR |
182 | br_ifp = zif->brslave_info.br_if; |
183 | if (br_ifp == NULL) | |
184 | return -1; | |
24268cd0 | 185 | |
b2998086 | 186 | vxl = &zif->l2info.vxl; |
24268cd0 | 187 | |
b2998086 | 188 | br_zif = (const struct zebra_if *)br_ifp->info; |
24268cd0 | 189 | |
b2998086 PR |
190 | if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif)) |
191 | vid = vxl->access_vlan; | |
192 | else | |
193 | vid = 0; | |
24268cd0 | 194 | |
b2998086 PR |
195 | ifp = zevpn->vxlan_if; |
196 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
197 | ||
198 | res = dplane_rem_mac_del(ifp, br_ifp, vid, &mac->macaddr, vtep_ip); | |
199 | if (res != ZEBRA_DPLANE_REQUEST_FAILURE) | |
200 | return 0; | |
201 | else | |
202 | return -1; | |
24268cd0 PR |
203 | } |
204 | ||
b2998086 PR |
205 | /* |
206 | * Decrement neighbor refcount of MAC; uninstall and free it if | |
207 | * appropriate. | |
24268cd0 | 208 | */ |
b2998086 | 209 | void zebra_evpn_deref_ip2mac(zebra_evpn_t *zevpn, zebra_mac_t *mac) |
24268cd0 | 210 | { |
b2998086 PR |
211 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) |
212 | return; | |
24268cd0 | 213 | |
b2998086 PR |
214 | /* If all remote neighbors referencing a remote MAC go away, |
215 | * we need to uninstall the MAC. | |
24268cd0 | 216 | */ |
b2998086 PR |
217 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) |
218 | && remote_neigh_count(mac) == 0) { | |
219 | zebra_evpn_rem_mac_uninstall(zevpn, mac); | |
220 | zebra_evpn_es_mac_deref_entry(mac); | |
221 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
222 | } | |
223 | ||
224 | /* If no neighbors, delete the MAC. */ | |
225 | if (list_isempty(mac->neigh_list)) | |
226 | zebra_evpn_mac_del(zevpn, mac); | |
227 | } | |
228 | ||
d9d3455e PR |
229 | static void zebra_evpn_mac_get_access_info(zebra_mac_t *mac, |
230 | struct interface **ifpP, | |
231 | vlanid_t *vid) | |
b2998086 PR |
232 | { |
233 | /* if the mac is associated with an ES we must get the access | |
234 | * info from the ES | |
24268cd0 | 235 | */ |
b2998086 PR |
236 | if (mac->es) { |
237 | struct zebra_if *zif; | |
238 | ||
239 | /* get the access port from the es */ | |
240 | *ifpP = mac->es->zif ? mac->es->zif->ifp : NULL; | |
241 | /* get the vlan from the EVPN */ | |
242 | if (mac->zevpn->vxlan_if) { | |
243 | zif = mac->zevpn->vxlan_if->info; | |
244 | *vid = zif->l2info.vxl.access_vlan; | |
245 | } else { | |
246 | *vid = 0; | |
247 | } | |
248 | } else { | |
249 | struct zebra_ns *zns; | |
250 | ||
251 | *vid = mac->fwd_info.local.vid; | |
47c58929 | 252 | zns = zebra_ns_lookup(mac->fwd_info.local.ns_id); |
b2998086 PR |
253 | *ifpP = if_lookup_by_index_per_ns(zns, |
254 | mac->fwd_info.local.ifindex); | |
255 | } | |
256 | } | |
257 | ||
258 | static int zebra_evpn_dad_mac_auto_recovery_exp(struct thread *t) | |
259 | { | |
260 | struct zebra_vrf *zvrf = NULL; | |
261 | zebra_mac_t *mac = NULL; | |
262 | zebra_evpn_t *zevpn = NULL; | |
263 | struct listnode *node = NULL; | |
264 | zebra_neigh_t *nbr = NULL; | |
265 | char buf[ETHER_ADDR_STRLEN]; | |
266 | ||
267 | mac = THREAD_ARG(t); | |
268 | ||
269 | /* since this is asynchronous we need sanity checks*/ | |
270 | zvrf = vrf_info_lookup(mac->zevpn->vrf_id); | |
271 | if (!zvrf) | |
272 | return 0; | |
273 | ||
8b5fdf2e | 274 | zevpn = zebra_evpn_lookup(mac->zevpn->vni); |
b2998086 PR |
275 | if (!zevpn) |
276 | return 0; | |
277 | ||
278 | mac = zebra_evpn_mac_lookup(zevpn, &mac->macaddr); | |
279 | if (!mac) | |
280 | return 0; | |
281 | ||
282 | if (IS_ZEBRA_DEBUG_VXLAN) | |
283 | zlog_debug( | |
284 | "%s: duplicate addr mac %s flags 0x%x learn count %u host count %u auto recovery expired", | |
285 | __func__, | |
286 | prefix_mac2str(&mac->macaddr, buf, sizeof(buf)), | |
287 | mac->flags, mac->dad_count, listcount(mac->neigh_list)); | |
288 | ||
289 | /* Remove all IPs as duplicate associcated with this MAC */ | |
290 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
291 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) { | |
292 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
293 | ZEBRA_NEIGH_SET_INACTIVE(nbr); | |
294 | else if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE)) | |
295 | zebra_evpn_rem_neigh_install( | |
296 | zevpn, nbr, false /*was_static*/); | |
297 | } | |
24268cd0 | 298 | |
24268cd0 PR |
299 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); |
300 | nbr->dad_count = 0; | |
301 | nbr->detect_start_time.tv_sec = 0; | |
b2998086 PR |
302 | nbr->dad_dup_detect_time = 0; |
303 | } | |
304 | ||
305 | UNSET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
306 | mac->dad_count = 0; | |
307 | mac->detect_start_time.tv_sec = 0; | |
308 | mac->detect_start_time.tv_usec = 0; | |
309 | mac->dad_dup_detect_time = 0; | |
310 | mac->dad_mac_auto_recovery_timer = NULL; | |
311 | ||
312 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
313 | /* Inform to BGP */ | |
314 | if (zebra_evpn_mac_send_add_to_client(zevpn->vni, &mac->macaddr, | |
315 | mac->flags, mac->loc_seq, | |
316 | mac->es)) | |
317 | return -1; | |
318 | ||
319 | /* Process all neighbors associated with this MAC. */ | |
320 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
321 | 0 /*es_change*/); | |
322 | ||
323 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
324 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
325 | ||
326 | /* Install the entry. */ | |
327 | zebra_evpn_rem_mac_install(zevpn, mac, false /* was_static */); | |
24268cd0 | 328 | } |
b2998086 | 329 | |
24268cd0 PR |
330 | return 0; |
331 | } | |
332 | ||
d9d3455e PR |
333 | static void zebra_evpn_dup_addr_detect_for_mac(struct zebra_vrf *zvrf, |
334 | zebra_mac_t *mac, | |
335 | struct in_addr vtep_ip, | |
336 | bool do_dad, bool *is_dup_detect, | |
337 | bool is_local) | |
24268cd0 PR |
338 | { |
339 | zebra_neigh_t *nbr; | |
340 | struct listnode *node = NULL; | |
341 | struct timeval elapsed = {0, 0}; | |
342 | char buf[ETHER_ADDR_STRLEN]; | |
343 | char buf1[INET6_ADDRSTRLEN]; | |
344 | bool reset_params = false; | |
345 | ||
346 | if (!(zvrf->dup_addr_detect && do_dad)) | |
347 | return; | |
348 | ||
349 | /* MAC is detected as duplicate, | |
350 | * Local MAC event -> hold on advertising to BGP. | |
351 | * Remote MAC event -> hold on installing it. | |
352 | */ | |
353 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { | |
354 | if (IS_ZEBRA_DEBUG_VXLAN) | |
355 | zlog_debug( | |
356 | "%s: duplicate addr MAC %s flags 0x%x skip update to client, learn count %u recover time %u", | |
357 | __func__, | |
358 | prefix_mac2str(&mac->macaddr, buf, sizeof(buf)), | |
359 | mac->flags, mac->dad_count, | |
360 | zvrf->dad_freeze_time); | |
361 | ||
362 | /* For duplicate MAC do not update | |
363 | * client but update neigh due to | |
364 | * this MAC update. | |
365 | */ | |
366 | if (zvrf->dad_freeze) | |
367 | *is_dup_detect = true; | |
368 | ||
369 | return; | |
370 | } | |
371 | ||
372 | /* Check if detection time (M-secs) expired. | |
373 | * Reset learn count and detection start time. | |
374 | */ | |
375 | monotime_since(&mac->detect_start_time, &elapsed); | |
376 | reset_params = (elapsed.tv_sec > zvrf->dad_time); | |
377 | if (is_local && !reset_params) { | |
378 | /* RFC-7432: A PE/VTEP that detects a MAC mobility | |
379 | * event via LOCAL learning starts an M-second timer. | |
380 | * | |
381 | * NOTE: This is the START of the probe with count is | |
382 | * 0 during LOCAL learn event. | |
383 | * (mac->dad_count == 0 || elapsed.tv_sec >= zvrf->dad_time) | |
384 | */ | |
385 | reset_params = !mac->dad_count; | |
386 | } | |
387 | ||
388 | if (reset_params) { | |
389 | if (IS_ZEBRA_DEBUG_VXLAN) | |
390 | zlog_debug( | |
391 | "%s: duplicate addr MAC %s flags 0x%x detection time passed, reset learn count %u", | |
392 | __func__, | |
393 | prefix_mac2str(&mac->macaddr, buf, sizeof(buf)), | |
394 | mac->flags, mac->dad_count); | |
395 | ||
396 | mac->dad_count = 0; | |
397 | /* Start dup. addr detection (DAD) start time, | |
398 | * ONLY during LOCAL learn. | |
399 | */ | |
400 | if (is_local) | |
401 | monotime(&mac->detect_start_time); | |
402 | ||
403 | } else if (!is_local) { | |
404 | /* For REMOTE MAC, increment detection count | |
405 | * ONLY while in probe window, once window passed, | |
406 | * next local learn event should trigger DAD. | |
407 | */ | |
408 | mac->dad_count++; | |
409 | } | |
410 | ||
411 | /* For LOCAL MAC learn event, once count is reset above via either | |
412 | * initial/start detection time or passed the probe time, the count | |
413 | * needs to be incremented. | |
414 | */ | |
415 | if (is_local) | |
416 | mac->dad_count++; | |
417 | ||
418 | if (mac->dad_count >= zvrf->dad_max_moves) { | |
419 | flog_warn(EC_ZEBRA_DUP_MAC_DETECTED, | |
9bcef951 | 420 | "VNI %u: MAC %s detected as duplicate during %s VTEP %pI4", |
24268cd0 PR |
421 | mac->zevpn->vni, |
422 | prefix_mac2str(&mac->macaddr, buf, sizeof(buf)), | |
423 | is_local ? "local update, last" : | |
9bcef951 | 424 | "remote update, from", &vtep_ip); |
24268cd0 PR |
425 | |
426 | SET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
427 | ||
428 | /* Capture Duplicate detection time */ | |
429 | mac->dad_dup_detect_time = monotime(NULL); | |
430 | ||
431 | /* Mark all IPs/Neighs as duplicate | |
432 | * associcated with this MAC | |
433 | */ | |
434 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
435 | ||
436 | /* Ony Mark IPs which are Local */ | |
437 | if (!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
438 | continue; | |
439 | ||
440 | SET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
441 | ||
442 | nbr->dad_dup_detect_time = monotime(NULL); | |
443 | ||
444 | flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED, | |
445 | "VNI %u: MAC %s IP %s detected as duplicate during %s update, inherit duplicate from MAC", | |
446 | mac->zevpn->vni, | |
447 | prefix_mac2str(&mac->macaddr, | |
448 | buf, sizeof(buf)), | |
449 | ipaddr2str(&nbr->ip, buf1, sizeof(buf1)), | |
450 | is_local ? "local" : "remote"); | |
451 | } | |
452 | ||
453 | /* Start auto recovery timer for this MAC */ | |
454 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
455 | if (zvrf->dad_freeze && zvrf->dad_freeze_time) { | |
456 | if (IS_ZEBRA_DEBUG_VXLAN) | |
457 | zlog_debug( | |
458 | "%s: duplicate addr MAC %s flags 0x%x auto recovery time %u start", | |
459 | __func__, | |
460 | prefix_mac2str(&mac->macaddr, buf, | |
461 | sizeof(buf)), | |
462 | mac->flags, zvrf->dad_freeze_time); | |
463 | ||
464 | thread_add_timer(zrouter.master, | |
b2998086 | 465 | zebra_evpn_dad_mac_auto_recovery_exp, |
24268cd0 PR |
466 | mac, zvrf->dad_freeze_time, |
467 | &mac->dad_mac_auto_recovery_timer); | |
468 | } | |
469 | ||
470 | /* In case of local update, do not inform to client (BGPd), | |
471 | * upd_neigh for neigh sequence change. | |
472 | */ | |
473 | if (zvrf->dad_freeze) | |
474 | *is_dup_detect = true; | |
475 | } | |
476 | } | |
477 | ||
b2998086 PR |
478 | /* |
479 | * Print a specific MAC entry. | |
480 | */ | |
481 | void zebra_evpn_print_mac(zebra_mac_t *mac, void *ctxt, json_object *json) | |
24268cd0 | 482 | { |
b2998086 PR |
483 | struct vty *vty; |
484 | zebra_neigh_t *n = NULL; | |
485 | struct listnode *node = NULL; | |
486 | char buf1[ETHER_ADDR_STRLEN]; | |
487 | char buf2[INET6_ADDRSTRLEN]; | |
9bcef951 | 488 | char addr_buf[PREFIX_STRLEN]; |
b2998086 PR |
489 | struct zebra_vrf *zvrf; |
490 | struct timeval detect_start_time = {0, 0}; | |
491 | char timebuf[MONOTIME_STRLEN]; | |
492 | char thread_buf[THREAD_TIMER_STRLEN]; | |
24268cd0 | 493 | |
b2998086 PR |
494 | zvrf = zebra_vrf_get_evpn(); |
495 | if (!zvrf) | |
24268cd0 PR |
496 | return; |
497 | ||
b2998086 PR |
498 | vty = (struct vty *)ctxt; |
499 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
24268cd0 | 500 | |
b2998086 PR |
501 | if (json) { |
502 | json_object *json_mac = json_object_new_object(); | |
24268cd0 | 503 | |
b2998086 PR |
504 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
505 | struct interface *ifp; | |
506 | vlanid_t vid; | |
24268cd0 | 507 | |
b2998086 PR |
508 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
509 | json_object_string_add(json_mac, "type", "local"); | |
510 | if (ifp) { | |
511 | json_object_string_add(json_mac, "intf", | |
512 | ifp->name); | |
513 | json_object_int_add(json_mac, "ifindex", | |
514 | ifp->ifindex); | |
515 | } | |
516 | if (vid) | |
517 | json_object_int_add(json_mac, "vlan", vid); | |
518 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
519 | json_object_string_add(json_mac, "type", "remote"); | |
520 | json_object_string_add( | |
521 | json_mac, "remoteVtep", | |
9bcef951 MS |
522 | inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip, |
523 | addr_buf, sizeof(addr_buf))); | |
b2998086 PR |
524 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) |
525 | json_object_string_add(json_mac, "type", "auto"); | |
24268cd0 | 526 | |
b2998086 PR |
527 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) |
528 | json_object_boolean_true_add(json_mac, "stickyMac"); | |
24268cd0 | 529 | |
b2998086 PR |
530 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) |
531 | json_object_boolean_true_add(json_mac, | |
532 | "defaultGateway"); | |
24268cd0 | 533 | |
b2998086 PR |
534 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) |
535 | json_object_boolean_true_add(json_mac, | |
536 | "remoteGatewayMac"); | |
24268cd0 | 537 | |
b2998086 PR |
538 | json_object_int_add(json_mac, "localSequence", mac->loc_seq); |
539 | json_object_int_add(json_mac, "remoteSequence", mac->rem_seq); | |
24268cd0 | 540 | |
b2998086 PR |
541 | json_object_int_add(json_mac, "detectionCount", mac->dad_count); |
542 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
543 | json_object_boolean_true_add(json_mac, "isDuplicate"); | |
544 | else | |
545 | json_object_boolean_false_add(json_mac, "isDuplicate"); | |
24268cd0 | 546 | |
b2998086 PR |
547 | json_object_int_add(json_mac, "syncNeighCount", |
548 | mac->sync_neigh_cnt); | |
549 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) | |
550 | json_object_boolean_true_add(json_mac, "localInactive"); | |
551 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY)) | |
552 | json_object_boolean_true_add(json_mac, "peerProxy"); | |
553 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
554 | json_object_boolean_true_add(json_mac, "peerActive"); | |
555 | if (mac->hold_timer) | |
556 | json_object_string_add( | |
557 | json_mac, "peerActiveHold", | |
558 | thread_timer_to_hhmmss(thread_buf, | |
559 | sizeof(thread_buf), | |
560 | mac->hold_timer)); | |
561 | if (mac->es) | |
562 | json_object_string_add(json_mac, "esi", | |
563 | mac->es->esi_str); | |
564 | /* print all the associated neigh */ | |
565 | if (!listcount(mac->neigh_list)) | |
566 | json_object_string_add(json_mac, "neighbors", "none"); | |
567 | else { | |
568 | json_object *json_active_nbrs = json_object_new_array(); | |
569 | json_object *json_inactive_nbrs = | |
570 | json_object_new_array(); | |
571 | json_object *json_nbrs = json_object_new_object(); | |
24268cd0 | 572 | |
b2998086 PR |
573 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { |
574 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) | |
575 | json_object_array_add( | |
576 | json_active_nbrs, | |
577 | json_object_new_string( | |
578 | ipaddr2str( | |
579 | &n->ip, buf2, | |
580 | sizeof(buf2)))); | |
581 | else | |
582 | json_object_array_add( | |
583 | json_inactive_nbrs, | |
584 | json_object_new_string( | |
585 | ipaddr2str( | |
586 | &n->ip, buf2, | |
587 | sizeof(buf2)))); | |
588 | } | |
24268cd0 | 589 | |
b2998086 PR |
590 | json_object_object_add(json_nbrs, "active", |
591 | json_active_nbrs); | |
592 | json_object_object_add(json_nbrs, "inactive", | |
593 | json_inactive_nbrs); | |
594 | json_object_object_add(json_mac, "neighbors", | |
595 | json_nbrs); | |
24268cd0 | 596 | } |
24268cd0 | 597 | |
b2998086 PR |
598 | json_object_object_add(json, buf1, json_mac); |
599 | } else { | |
600 | vty_out(vty, "MAC: %s\n", buf1); | |
24268cd0 | 601 | |
b2998086 PR |
602 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
603 | struct interface *ifp; | |
604 | vlanid_t vid; | |
24268cd0 | 605 | |
b2998086 | 606 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
24268cd0 | 607 | |
b2998086 PR |
608 | if (mac->es) |
609 | vty_out(vty, " ESI: %s\n", mac->es->esi_str); | |
24268cd0 | 610 | |
b2998086 PR |
611 | if (ifp) |
612 | vty_out(vty, " Intf: %s(%u)", ifp->name, | |
613 | ifp->ifindex); | |
614 | else | |
615 | vty_out(vty, " Intf: -"); | |
616 | vty_out(vty, " VLAN: %u", vid); | |
617 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
618 | if (mac->es) | |
619 | vty_out(vty, " Remote ES: %s", | |
620 | mac->es->esi_str); | |
621 | else | |
9bcef951 MS |
622 | vty_out(vty, " Remote VTEP: %pI4", |
623 | &mac->fwd_info.r_vtep_ip); | |
b2998086 PR |
624 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { |
625 | vty_out(vty, " Auto Mac "); | |
626 | } | |
24268cd0 | 627 | |
b2998086 PR |
628 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) |
629 | vty_out(vty, " Sticky Mac "); | |
24268cd0 | 630 | |
b2998086 PR |
631 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) |
632 | vty_out(vty, " Default-gateway Mac "); | |
633 | ||
634 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) | |
635 | vty_out(vty, " Remote-gateway Mac "); | |
636 | ||
637 | vty_out(vty, "\n"); | |
638 | vty_out(vty, " Sync-info: neigh#: %u", mac->sync_neigh_cnt); | |
639 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) | |
24268cd0 | 640 | vty_out(vty, " local-inactive"); |
b2998086 | 641 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY)) |
24268cd0 | 642 | vty_out(vty, " peer-proxy"); |
b2998086 | 643 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) |
24268cd0 | 644 | vty_out(vty, " peer-active"); |
b2998086 | 645 | if (mac->hold_timer) |
24268cd0 | 646 | vty_out(vty, " (ht: %s)", |
b2998086 PR |
647 | thread_timer_to_hhmmss(thread_buf, |
648 | sizeof(thread_buf), | |
649 | mac->hold_timer)); | |
650 | vty_out(vty, "\n"); | |
651 | vty_out(vty, " Local Seq: %u Remote Seq: %u", mac->loc_seq, | |
652 | mac->rem_seq); | |
24268cd0 | 653 | vty_out(vty, "\n"); |
24268cd0 | 654 | |
b2998086 | 655 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { |
24268cd0 | 656 | vty_out(vty, " Duplicate, detected at %s", |
b2998086 | 657 | time_to_string(mac->dad_dup_detect_time, |
24268cd0 | 658 | timebuf)); |
b2998086 PR |
659 | } else if (mac->dad_count) { |
660 | monotime_since(&mac->detect_start_time, | |
24268cd0 PR |
661 | &detect_start_time); |
662 | if (detect_start_time.tv_sec <= zvrf->dad_time) { | |
b2998086 | 663 | time_to_string(mac->detect_start_time.tv_sec, |
24268cd0 PR |
664 | timebuf); |
665 | vty_out(vty, | |
666 | " Duplicate detection started at %s, detection count %u\n", | |
b2998086 | 667 | timebuf, mac->dad_count); |
24268cd0 PR |
668 | } |
669 | } | |
24268cd0 | 670 | |
b2998086 PR |
671 | /* print all the associated neigh */ |
672 | vty_out(vty, " Neighbors:\n"); | |
673 | if (!listcount(mac->neigh_list)) | |
674 | vty_out(vty, " No Neighbors\n"); | |
675 | else { | |
676 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { | |
677 | vty_out(vty, " %s %s\n", | |
678 | ipaddr2str(&n->ip, buf2, sizeof(buf2)), | |
679 | (IS_ZEBRA_NEIGH_ACTIVE(n) | |
680 | ? "Active" | |
681 | : "Inactive")); | |
682 | } | |
683 | } | |
24268cd0 | 684 | |
b2998086 | 685 | vty_out(vty, "\n"); |
24268cd0 PR |
686 | } |
687 | } | |
688 | ||
b2998086 PR |
689 | static char *zebra_evpn_print_mac_flags(zebra_mac_t *mac, char *flags_buf, |
690 | uint32_t flags_buf_sz) | |
24268cd0 | 691 | { |
b2998086 PR |
692 | snprintf(flags_buf, flags_buf_sz, "%s%s%s%s", |
693 | mac->sync_neigh_cnt ? | |
694 | "N" : "", | |
695 | (mac->flags & ZEBRA_MAC_ES_PEER_ACTIVE) ? | |
24268cd0 | 696 | "P" : "", |
b2998086 | 697 | (mac->flags & ZEBRA_MAC_ES_PEER_PROXY) ? |
24268cd0 | 698 | "X" : "", |
b2998086 | 699 | (mac->flags & ZEBRA_MAC_LOCAL_INACTIVE) ? |
24268cd0 PR |
700 | "I" : ""); |
701 | ||
702 | return flags_buf; | |
703 | } | |
704 | ||
705 | /* | |
b2998086 | 706 | * Print MAC hash entry - called for display of all MACs. |
24268cd0 | 707 | */ |
b2998086 | 708 | void zebra_evpn_print_mac_hash(struct hash_bucket *bucket, void *ctxt) |
24268cd0 PR |
709 | { |
710 | struct vty *vty; | |
b2998086 PR |
711 | json_object *json_mac_hdr = NULL, *json_mac = NULL; |
712 | zebra_mac_t *mac; | |
24268cd0 | 713 | char buf1[ETHER_ADDR_STRLEN]; |
9bcef951 | 714 | char addr_buf[PREFIX_STRLEN]; |
b2998086 | 715 | struct mac_walk_ctx *wctx = ctxt; |
24268cd0 PR |
716 | char flags_buf[6]; |
717 | ||
718 | vty = wctx->vty; | |
b2998086 PR |
719 | json_mac_hdr = wctx->json; |
720 | mac = (zebra_mac_t *)bucket->data; | |
721 | ||
722 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
723 | ||
724 | if (json_mac_hdr) | |
725 | json_mac = json_object_new_object(); | |
24268cd0 | 726 | |
b2998086 PR |
727 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
728 | struct interface *ifp; | |
729 | vlanid_t vid; | |
24268cd0 | 730 | |
b2998086 | 731 | if (wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) |
24268cd0 PR |
732 | return; |
733 | ||
b2998086 PR |
734 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
735 | if (json_mac_hdr == NULL) { | |
736 | vty_out(vty, "%-17s %-6s %-5s %-30s", buf1, "local", | |
737 | zebra_evpn_print_mac_flags(mac, flags_buf, | |
738 | sizeof(flags_buf)), | |
739 | ifp ? ifp->name : "-"); | |
740 | } else { | |
741 | json_object_string_add(json_mac, "type", "local"); | |
742 | if (ifp) | |
743 | json_object_string_add(json_mac, "intf", | |
744 | ifp->name); | |
745 | } | |
746 | if (vid) { | |
747 | if (json_mac_hdr == NULL) | |
748 | vty_out(vty, " %-5u", vid); | |
749 | else | |
750 | json_object_int_add(json_mac, "vlan", vid); | |
751 | } else /* No vid? fill out the space */ | |
752 | if (json_mac_hdr == NULL) | |
753 | vty_out(vty, " %-5s", ""); | |
754 | if (json_mac_hdr == NULL) { | |
755 | vty_out(vty, " %u/%u", mac->loc_seq, mac->rem_seq); | |
756 | vty_out(vty, "\n"); | |
24268cd0 | 757 | } else { |
b2998086 PR |
758 | json_object_int_add(json_mac, "localSequence", |
759 | mac->loc_seq); | |
760 | json_object_int_add(json_mac, "remoteSequence", | |
761 | mac->rem_seq); | |
762 | json_object_int_add(json_mac, "detectionCount", | |
763 | mac->dad_count); | |
764 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
765 | json_object_boolean_true_add(json_mac, | |
24268cd0 PR |
766 | "isDuplicate"); |
767 | else | |
b2998086 | 768 | json_object_boolean_false_add(json_mac, |
24268cd0 | 769 | "isDuplicate"); |
b2998086 | 770 | json_object_object_add(json_mac_hdr, buf1, json_mac); |
24268cd0 | 771 | } |
b2998086 | 772 | |
24268cd0 | 773 | wctx->count++; |
b2998086 PR |
774 | |
775 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
776 | ||
777 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
778 | && !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, | |
779 | &wctx->r_vtep_ip)) | |
24268cd0 PR |
780 | return; |
781 | ||
b2998086 PR |
782 | if (json_mac_hdr == NULL) { |
783 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
784 | && (wctx->count == 0)) { | |
785 | vty_out(vty, "\nVNI %u\n\n", wctx->zevpn->vni); | |
786 | vty_out(vty, "%-17s %-6s %-5s%-30s %-5s %s\n", | |
787 | "MAC", "Type", "Flags", | |
788 | "Intf/Remote ES/VTEP", "VLAN", | |
789 | "Seq #'s"); | |
24268cd0 | 790 | } |
9bcef951 MS |
791 | if (mac->es == NULL) |
792 | inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip, | |
793 | addr_buf, sizeof(addr_buf)); | |
794 | ||
b2998086 PR |
795 | vty_out(vty, "%-17s %-6s %-5s %-30s %-5s %u/%u\n", buf1, |
796 | "remote", | |
797 | zebra_evpn_print_mac_flags(mac, flags_buf, | |
9bcef951 MS |
798 | sizeof(flags_buf)), |
799 | mac->es ? mac->es->esi_str : addr_buf, | |
b2998086 PR |
800 | "", mac->loc_seq, mac->rem_seq); |
801 | } else { | |
802 | json_object_string_add(json_mac, "type", "remote"); | |
803 | json_object_string_add( | |
804 | json_mac, "remoteVtep", | |
9bcef951 MS |
805 | inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip, |
806 | addr_buf, sizeof(addr_buf))); | |
b2998086 PR |
807 | json_object_object_add(json_mac_hdr, buf1, json_mac); |
808 | json_object_int_add(json_mac, "localSequence", | |
809 | mac->loc_seq); | |
810 | json_object_int_add(json_mac, "remoteSequence", | |
811 | mac->rem_seq); | |
812 | json_object_int_add(json_mac, "detectionCount", | |
813 | mac->dad_count); | |
814 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
815 | json_object_boolean_true_add(json_mac, | |
816 | "isDuplicate"); | |
817 | else | |
818 | json_object_boolean_false_add(json_mac, | |
819 | "isDuplicate"); | |
820 | } | |
24268cd0 | 821 | |
b2998086 PR |
822 | wctx->count++; |
823 | } | |
24268cd0 PR |
824 | } |
825 | ||
826 | /* | |
b2998086 | 827 | * Print MAC hash entry in detail - called for display of all MACs. |
24268cd0 | 828 | */ |
b2998086 | 829 | void zebra_evpn_print_mac_hash_detail(struct hash_bucket *bucket, void *ctxt) |
24268cd0 | 830 | { |
b2998086 PR |
831 | struct vty *vty; |
832 | json_object *json_mac_hdr = NULL; | |
833 | zebra_mac_t *mac; | |
834 | struct mac_walk_ctx *wctx = ctxt; | |
835 | char buf1[ETHER_ADDR_STRLEN]; | |
24268cd0 | 836 | |
b2998086 PR |
837 | vty = wctx->vty; |
838 | json_mac_hdr = wctx->json; | |
839 | mac = (zebra_mac_t *)bucket->data; | |
840 | if (!mac) | |
24268cd0 PR |
841 | return; |
842 | ||
b2998086 PR |
843 | wctx->count++; |
844 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
24268cd0 | 845 | |
b2998086 | 846 | zebra_evpn_print_mac(mac, vty, json_mac_hdr); |
24268cd0 PR |
847 | } |
848 | ||
849 | /* | |
b2998086 | 850 | * Inform BGP about local MACIP. |
24268cd0 | 851 | */ |
b2998086 PR |
852 | int zebra_evpn_macip_send_msg_to_client(vni_t vni, struct ethaddr *macaddr, |
853 | struct ipaddr *ip, uint8_t flags, | |
854 | uint32_t seq, int state, | |
855 | struct zebra_evpn_es *es, uint16_t cmd) | |
24268cd0 | 856 | { |
b2998086 PR |
857 | char buf[ETHER_ADDR_STRLEN]; |
858 | char buf2[INET6_ADDRSTRLEN]; | |
859 | int ipa_len; | |
860 | struct zserv *client = NULL; | |
861 | struct stream *s = NULL; | |
862 | esi_t *esi = es ? &es->esi : zero_esi; | |
24268cd0 | 863 | |
b2998086 PR |
864 | client = zserv_find_client(ZEBRA_ROUTE_BGP, 0); |
865 | /* BGP may not be running. */ | |
866 | if (!client) | |
867 | return 0; | |
24268cd0 | 868 | |
b2998086 | 869 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); |
24268cd0 | 870 | |
b2998086 PR |
871 | zclient_create_header(s, cmd, zebra_vrf_get_evpn_id()); |
872 | stream_putl(s, vni); | |
873 | stream_put(s, macaddr->octet, ETH_ALEN); | |
874 | if (ip) { | |
875 | ipa_len = 0; | |
876 | if (IS_IPADDR_V4(ip)) | |
877 | ipa_len = IPV4_MAX_BYTELEN; | |
878 | else if (IS_IPADDR_V6(ip)) | |
879 | ipa_len = IPV6_MAX_BYTELEN; | |
24268cd0 | 880 | |
b2998086 PR |
881 | stream_putl(s, ipa_len); /* IP address length */ |
882 | if (ipa_len) | |
883 | stream_put(s, &ip->ip.addr, ipa_len); /* IP address */ | |
884 | } else | |
885 | stream_putl(s, 0); /* Just MAC. */ | |
24268cd0 | 886 | |
b2998086 PR |
887 | if (cmd == ZEBRA_MACIP_ADD) { |
888 | stream_putc(s, flags); /* sticky mac/gateway mac */ | |
889 | stream_putl(s, seq); /* sequence number */ | |
890 | stream_put(s, esi, sizeof(esi_t)); | |
24268cd0 | 891 | } else { |
b2998086 PR |
892 | stream_putl(s, state); /* state - active/inactive */ |
893 | } | |
24268cd0 | 894 | |
24268cd0 | 895 | |
b2998086 PR |
896 | /* Write packet size. */ |
897 | stream_putw_at(s, 0, stream_get_endp(s)); | |
24268cd0 | 898 | |
b2998086 PR |
899 | if (IS_ZEBRA_DEBUG_VXLAN) |
900 | zlog_debug( | |
901 | "Send MACIP %s f 0x%x MAC %s IP %s seq %u L2-VNI %u ESI %s to %s", | |
902 | (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", flags, | |
903 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
904 | ipaddr2str(ip, buf2, sizeof(buf2)), seq, vni, | |
905 | es ? es->esi_str : "-", | |
906 | zebra_route_string(client->proto)); | |
24268cd0 | 907 | |
b2998086 PR |
908 | if (cmd == ZEBRA_MACIP_ADD) |
909 | client->macipadd_cnt++; | |
910 | else | |
911 | client->macipdel_cnt++; | |
24268cd0 | 912 | |
b2998086 PR |
913 | return zserv_send_message(client, s); |
914 | } | |
24268cd0 | 915 | |
b2998086 PR |
916 | static unsigned int mac_hash_keymake(const void *p) |
917 | { | |
918 | const zebra_mac_t *pmac = p; | |
919 | const void *pnt = (void *)pmac->macaddr.octet; | |
24268cd0 | 920 | |
b2998086 | 921 | return jhash(pnt, ETH_ALEN, 0xa5a5a55a); |
24268cd0 PR |
922 | } |
923 | ||
924 | /* | |
b2998086 | 925 | * Compare two MAC addresses. |
24268cd0 | 926 | */ |
b2998086 | 927 | static bool mac_cmp(const void *p1, const void *p2) |
24268cd0 | 928 | { |
b2998086 PR |
929 | const zebra_mac_t *pmac1 = p1; |
930 | const zebra_mac_t *pmac2 = p2; | |
24268cd0 | 931 | |
b2998086 PR |
932 | if (pmac1 == NULL && pmac2 == NULL) |
933 | return true; | |
24268cd0 | 934 | |
b2998086 PR |
935 | if (pmac1 == NULL || pmac2 == NULL) |
936 | return false; | |
24268cd0 | 937 | |
b2998086 PR |
938 | return (memcmp(pmac1->macaddr.octet, pmac2->macaddr.octet, ETH_ALEN) |
939 | == 0); | |
940 | } | |
24268cd0 | 941 | |
b2998086 PR |
942 | /* |
943 | * Callback to allocate MAC hash entry. | |
944 | */ | |
945 | static void *zebra_evpn_mac_alloc(void *p) | |
946 | { | |
947 | const zebra_mac_t *tmp_mac = p; | |
948 | zebra_mac_t *mac; | |
24268cd0 | 949 | |
b2998086 PR |
950 | mac = XCALLOC(MTYPE_MAC, sizeof(zebra_mac_t)); |
951 | *mac = *tmp_mac; | |
24268cd0 | 952 | |
b2998086 PR |
953 | return ((void *)mac); |
954 | } | |
24268cd0 | 955 | |
b2998086 PR |
956 | /* |
957 | * Add MAC entry. | |
958 | */ | |
959 | zebra_mac_t *zebra_evpn_mac_add(zebra_evpn_t *zevpn, struct ethaddr *macaddr) | |
960 | { | |
961 | zebra_mac_t tmp_mac; | |
962 | zebra_mac_t *mac = NULL; | |
24268cd0 | 963 | |
b2998086 PR |
964 | memset(&tmp_mac, 0, sizeof(zebra_mac_t)); |
965 | memcpy(&tmp_mac.macaddr, macaddr, ETH_ALEN); | |
966 | mac = hash_get(zevpn->mac_table, &tmp_mac, zebra_evpn_mac_alloc); | |
967 | assert(mac); | |
24268cd0 | 968 | |
b2998086 PR |
969 | mac->zevpn = zevpn; |
970 | mac->dad_mac_auto_recovery_timer = NULL; | |
24268cd0 | 971 | |
b2998086 PR |
972 | mac->neigh_list = list_new(); |
973 | mac->neigh_list->cmp = neigh_list_cmp; | |
24268cd0 | 974 | |
b2998086 PR |
975 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
976 | char buf[ETHER_ADDR_STRLEN]; | |
24268cd0 | 977 | |
b2998086 PR |
978 | zlog_debug("%s: MAC %s flags 0x%x", __func__, |
979 | prefix_mac2str(&mac->macaddr, buf, sizeof(buf)), | |
980 | mac->flags); | |
981 | } | |
982 | return mac; | |
24268cd0 PR |
983 | } |
984 | ||
985 | /* | |
b2998086 | 986 | * Delete MAC entry. |
24268cd0 | 987 | */ |
b2998086 | 988 | int zebra_evpn_mac_del(zebra_evpn_t *zevpn, zebra_mac_t *mac) |
24268cd0 | 989 | { |
b2998086 | 990 | zebra_mac_t *tmp_mac; |
24268cd0 | 991 | |
b2998086 PR |
992 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
993 | char buf[ETHER_ADDR_STRLEN]; | |
994 | ||
995 | zlog_debug("%s: MAC %s flags 0x%x", __func__, | |
996 | prefix_mac2str(&mac->macaddr, buf, sizeof(buf)), | |
997 | mac->flags); | |
24268cd0 PR |
998 | } |
999 | ||
b2998086 PR |
1000 | /* force de-ref any ES entry linked to the MAC */ |
1001 | zebra_evpn_es_mac_deref_entry(mac); | |
24268cd0 | 1002 | |
b2998086 PR |
1003 | /* Cancel proxy hold timer */ |
1004 | zebra_evpn_mac_stop_hold_timer(mac); | |
24268cd0 | 1005 | |
b2998086 PR |
1006 | /* Cancel auto recovery */ |
1007 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
24268cd0 | 1008 | |
b2998086 | 1009 | list_delete(&mac->neigh_list); |
24268cd0 | 1010 | |
b2998086 PR |
1011 | /* Free the VNI hash entry and allocated memory. */ |
1012 | tmp_mac = hash_release(zevpn->mac_table, mac); | |
1013 | XFREE(MTYPE_MAC, tmp_mac); | |
24268cd0 | 1014 | |
b2998086 PR |
1015 | return 0; |
1016 | } | |
24268cd0 | 1017 | |
b2998086 PR |
1018 | static bool zebra_evpn_check_mac_del_from_db(struct mac_walk_ctx *wctx, |
1019 | zebra_mac_t *mac) | |
1020 | { | |
1021 | if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_LOCAL)) | |
1022 | return true; | |
1023 | else if ((wctx->flags & DEL_REMOTE_MAC) | |
1024 | && (mac->flags & ZEBRA_MAC_REMOTE)) | |
1025 | return true; | |
1026 | else if ((wctx->flags & DEL_REMOTE_MAC_FROM_VTEP) | |
1027 | && (mac->flags & ZEBRA_MAC_REMOTE) | |
1028 | && IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &wctx->r_vtep_ip)) | |
1029 | return true; | |
1030 | else if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_AUTO) | |
1031 | && !listcount(mac->neigh_list)) { | |
1032 | if (IS_ZEBRA_DEBUG_VXLAN) { | |
1033 | char buf[ETHER_ADDR_STRLEN]; | |
24268cd0 | 1034 | |
24268cd0 | 1035 | zlog_debug( |
b2998086 PR |
1036 | "%s: Del MAC %s flags 0x%x", __func__, |
1037 | prefix_mac2str(&mac->macaddr, buf, sizeof(buf)), | |
1038 | mac->flags); | |
1039 | } | |
1040 | wctx->uninstall = 0; | |
24268cd0 | 1041 | |
b2998086 PR |
1042 | return true; |
1043 | } | |
24268cd0 | 1044 | |
b2998086 PR |
1045 | return false; |
1046 | } | |
24268cd0 | 1047 | |
b2998086 PR |
1048 | /* |
1049 | * Free MAC hash entry (callback) | |
1050 | */ | |
1051 | static void zebra_evpn_mac_del_hash_entry(struct hash_bucket *bucket, void *arg) | |
1052 | { | |
1053 | struct mac_walk_ctx *wctx = arg; | |
1054 | zebra_mac_t *mac = bucket->data; | |
24268cd0 | 1055 | |
b2998086 PR |
1056 | if (zebra_evpn_check_mac_del_from_db(wctx, mac)) { |
1057 | if (wctx->upd_client && (mac->flags & ZEBRA_MAC_LOCAL)) { | |
1058 | zebra_evpn_mac_send_del_to_client(wctx->zevpn->vni, | |
1059 | &mac->macaddr, | |
1060 | mac->flags, false); | |
1061 | } | |
1062 | if (wctx->uninstall) { | |
1063 | if (zebra_evpn_mac_is_static(mac)) | |
1064 | zebra_evpn_sync_mac_dp_install( | |
1065 | mac, false /* set_inactive */, | |
1066 | true /* force_clear_static */, | |
1067 | __func__); | |
24268cd0 | 1068 | |
b2998086 PR |
1069 | if (mac->flags & ZEBRA_MAC_REMOTE) |
1070 | zebra_evpn_rem_mac_uninstall(wctx->zevpn, mac); | |
24268cd0 | 1071 | } |
b2998086 PR |
1072 | |
1073 | zebra_evpn_mac_del(wctx->zevpn, mac); | |
24268cd0 PR |
1074 | } |
1075 | ||
24268cd0 PR |
1076 | return; |
1077 | } | |
1078 | ||
24268cd0 | 1079 | /* |
b2998086 | 1080 | * Delete all MAC entries for this EVPN. |
24268cd0 | 1081 | */ |
b2998086 PR |
1082 | void zebra_evpn_mac_del_all(zebra_evpn_t *zevpn, int uninstall, int upd_client, |
1083 | uint32_t flags) | |
24268cd0 | 1084 | { |
b2998086 | 1085 | struct mac_walk_ctx wctx; |
24268cd0 | 1086 | |
b2998086 | 1087 | if (!zevpn->mac_table) |
24268cd0 PR |
1088 | return; |
1089 | ||
b2998086 PR |
1090 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); |
1091 | wctx.zevpn = zevpn; | |
1092 | wctx.uninstall = uninstall; | |
1093 | wctx.upd_client = upd_client; | |
1094 | wctx.flags = flags; | |
24268cd0 | 1095 | |
b2998086 PR |
1096 | hash_iterate(zevpn->mac_table, zebra_evpn_mac_del_hash_entry, &wctx); |
1097 | } | |
24268cd0 | 1098 | |
b2998086 PR |
1099 | /* |
1100 | * Look up MAC hash entry. | |
1101 | */ | |
1102 | zebra_mac_t *zebra_evpn_mac_lookup(zebra_evpn_t *zevpn, struct ethaddr *mac) | |
1103 | { | |
1104 | zebra_mac_t tmp; | |
1105 | zebra_mac_t *pmac; | |
24268cd0 | 1106 | |
b2998086 PR |
1107 | memset(&tmp, 0, sizeof(tmp)); |
1108 | memcpy(&tmp.macaddr, mac, ETH_ALEN); | |
1109 | pmac = hash_lookup(zevpn->mac_table, &tmp); | |
24268cd0 | 1110 | |
b2998086 PR |
1111 | return pmac; |
1112 | } | |
24268cd0 | 1113 | |
b2998086 PR |
1114 | /* |
1115 | * Inform BGP about local MAC addition. | |
1116 | */ | |
1117 | int zebra_evpn_mac_send_add_to_client(vni_t vni, struct ethaddr *macaddr, | |
1118 | uint32_t mac_flags, uint32_t seq, | |
1119 | struct zebra_evpn_es *es) | |
1120 | { | |
1121 | uint8_t flags = 0; | |
24268cd0 | 1122 | |
b2998086 PR |
1123 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_LOCAL_INACTIVE)) { |
1124 | /* host reachability has not been verified locally */ | |
24268cd0 | 1125 | |
b2998086 PR |
1126 | /* if no ES peer is claiming reachability we can't advertise the |
1127 | * entry | |
1128 | */ | |
1129 | if (!CHECK_FLAG(mac_flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1130 | return 0; | |
24268cd0 | 1131 | |
b2998086 PR |
1132 | /* ES peers are claiming reachability; we will |
1133 | * advertise the entry but with a proxy flag | |
24268cd0 | 1134 | */ |
b2998086 PR |
1135 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT); |
1136 | } | |
24268cd0 | 1137 | |
b2998086 PR |
1138 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_STICKY)) |
1139 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
1140 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_DEF_GW)) | |
1141 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
24268cd0 | 1142 | |
b2998086 PR |
1143 | return zebra_evpn_macip_send_msg_to_client(vni, macaddr, NULL, flags, |
1144 | seq, ZEBRA_NEIGH_ACTIVE, es, | |
1145 | ZEBRA_MACIP_ADD); | |
1146 | } | |
24268cd0 | 1147 | |
b2998086 PR |
1148 | /* |
1149 | * Inform BGP about local MAC deletion. | |
1150 | */ | |
1151 | int zebra_evpn_mac_send_del_to_client(vni_t vni, struct ethaddr *macaddr, | |
1152 | uint32_t flags, bool force) | |
1153 | { | |
1154 | if (!force) { | |
1155 | if (CHECK_FLAG(flags, ZEBRA_MAC_LOCAL_INACTIVE) | |
1156 | && !CHECK_FLAG(flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1157 | /* the host was not advertised - nothing to delete */ | |
1158 | return 0; | |
24268cd0 PR |
1159 | } |
1160 | ||
b2998086 PR |
1161 | return zebra_evpn_macip_send_msg_to_client( |
1162 | vni, macaddr, NULL, 0 /* flags */, 0 /* seq */, | |
1163 | ZEBRA_NEIGH_ACTIVE, NULL, ZEBRA_MACIP_DEL); | |
24268cd0 PR |
1164 | } |
1165 | ||
1166 | /* | |
b2998086 | 1167 | * wrapper to create a MAC hash table |
24268cd0 | 1168 | */ |
b2998086 | 1169 | struct hash *zebra_mac_db_create(const char *desc) |
24268cd0 | 1170 | { |
b2998086 | 1171 | return hash_create(mac_hash_keymake, mac_cmp, desc); |
24268cd0 PR |
1172 | } |
1173 | ||
b2998086 PR |
1174 | /* program sync mac flags in the dataplane */ |
1175 | void zebra_evpn_sync_mac_dp_install(zebra_mac_t *mac, bool set_inactive, | |
1176 | bool force_clear_static, const char *caller) | |
24268cd0 | 1177 | { |
b2998086 PR |
1178 | char macbuf[ETHER_ADDR_STRLEN]; |
1179 | struct interface *ifp; | |
1180 | bool sticky; | |
1181 | bool set_static; | |
1182 | zebra_evpn_t *zevpn = mac->zevpn; | |
1183 | vlanid_t vid; | |
1184 | struct zebra_if *zif; | |
1185 | struct interface *br_ifp; | |
24268cd0 | 1186 | |
b2998086 PR |
1187 | /* get the access vlan from the vxlan_device */ |
1188 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); | |
24268cd0 | 1189 | |
b2998086 PR |
1190 | if (!ifp) { |
1191 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
1192 | zlog_debug( | |
1193 | "%s: dp-install sync-mac vni %u mac %s es %s 0x%x %sskipped, no access-port", | |
1194 | caller, zevpn->vni, | |
1195 | prefix_mac2str(&mac->macaddr, macbuf, | |
1196 | sizeof(macbuf)), | |
1197 | mac->es ? mac->es->esi_str : "-", mac->flags, | |
1198 | set_inactive ? "inactive " : ""); | |
24268cd0 | 1199 | return; |
b2998086 | 1200 | } |
24268cd0 | 1201 | |
b2998086 PR |
1202 | zif = ifp->info; |
1203 | br_ifp = zif->brslave_info.br_if; | |
1204 | if (!br_ifp) { | |
1205 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
1206 | zlog_debug( | |
1207 | "%s: dp-install sync-mac vni %u mac %s es %s 0x%x %sskipped, no br", | |
1208 | caller, zevpn->vni, | |
1209 | prefix_mac2str(&mac->macaddr, macbuf, | |
1210 | sizeof(macbuf)), | |
1211 | mac->es ? mac->es->esi_str : "-", mac->flags, | |
1212 | set_inactive ? "inactive " : ""); | |
1213 | return; | |
1214 | } | |
24268cd0 | 1215 | |
b2998086 PR |
1216 | sticky = !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY); |
1217 | if (force_clear_static) | |
1218 | set_static = false; | |
1219 | else | |
1220 | set_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1221 | |
b2998086 PR |
1222 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) |
1223 | zlog_debug( | |
1224 | "dp-install sync-mac vni %u mac %s es %s 0x%x %s%s", | |
1225 | zevpn->vni, | |
1226 | prefix_mac2str(&mac->macaddr, macbuf, sizeof(macbuf)), | |
1227 | mac->es ? mac->es->esi_str : "-", mac->flags, | |
1228 | set_static ? "static " : "", | |
1229 | set_inactive ? "inactive " : ""); | |
24268cd0 | 1230 | |
b2998086 PR |
1231 | dplane_local_mac_add(ifp, br_ifp, vid, &mac->macaddr, sticky, |
1232 | set_static, set_inactive); | |
24268cd0 PR |
1233 | } |
1234 | ||
b2998086 PR |
1235 | void zebra_evpn_mac_send_add_del_to_client(zebra_mac_t *mac, bool old_bgp_ready, |
1236 | bool new_bgp_ready) | |
24268cd0 | 1237 | { |
b2998086 PR |
1238 | if (new_bgp_ready) |
1239 | zebra_evpn_mac_send_add_to_client(mac->zevpn->vni, | |
1240 | &mac->macaddr, mac->flags, | |
1241 | mac->loc_seq, mac->es); | |
1242 | else if (old_bgp_ready) | |
1243 | zebra_evpn_mac_send_del_to_client(mac->zevpn->vni, | |
1244 | &mac->macaddr, mac->flags, | |
1245 | true /* force */); | |
24268cd0 PR |
1246 | } |
1247 | ||
b2998086 PR |
1248 | /* MAC hold timer is used to age out peer-active flag. |
1249 | * | |
1250 | * During this wait time we expect the dataplane component or an | |
1251 | * external neighmgr daemon to probe existing hosts to independently | |
1252 | * establish their presence on the ES. | |
1253 | */ | |
1254 | static int zebra_evpn_mac_hold_exp_cb(struct thread *t) | |
24268cd0 | 1255 | { |
b2998086 PR |
1256 | zebra_mac_t *mac; |
1257 | bool old_bgp_ready; | |
1258 | bool new_bgp_ready; | |
1259 | bool old_static; | |
1260 | bool new_static; | |
1261 | char macbuf[ETHER_ADDR_STRLEN]; | |
24268cd0 PR |
1262 | |
1263 | mac = THREAD_ARG(t); | |
b2998086 PR |
1264 | /* the purpose of the hold timer is to age out the peer-active |
1265 | * flag | |
1266 | */ | |
1267 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
24268cd0 PR |
1268 | return 0; |
1269 | ||
b2998086 PR |
1270 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
1271 | old_static = zebra_evpn_mac_is_static(mac); | |
1272 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1273 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1274 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1275 | |
b2998086 | 1276 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) |
24268cd0 | 1277 | zlog_debug( |
b2998086 PR |
1278 | "sync-mac vni %u mac %s es %s 0x%x hold expired", |
1279 | mac->zevpn->vni, | |
1280 | prefix_mac2str(&mac->macaddr, macbuf, sizeof(macbuf)), | |
1281 | mac->es ? mac->es->esi_str : "-", mac->flags); | |
24268cd0 | 1282 | |
b2998086 PR |
1283 | /* re-program the local mac in the dataplane if the mac is no |
1284 | * longer static | |
1285 | */ | |
1286 | if (old_static != new_static) | |
1287 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1288 | false /* force_clear_static */, | |
1289 | __func__); | |
24268cd0 | 1290 | |
b2998086 PR |
1291 | /* inform bgp if needed */ |
1292 | if (old_bgp_ready != new_bgp_ready) | |
1293 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1294 | new_bgp_ready); | |
24268cd0 PR |
1295 | |
1296 | return 0; | |
1297 | } | |
1298 | ||
b2998086 | 1299 | static inline void zebra_evpn_mac_start_hold_timer(zebra_mac_t *mac) |
24268cd0 | 1300 | { |
b2998086 | 1301 | char macbuf[ETHER_ADDR_STRLEN]; |
24268cd0 | 1302 | |
b2998086 PR |
1303 | if (mac->hold_timer) |
1304 | return; | |
24268cd0 | 1305 | |
b2998086 | 1306 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) |
24268cd0 | 1307 | zlog_debug( |
b2998086 PR |
1308 | "sync-mac vni %u mac %s es %s 0x%x hold started", |
1309 | mac->zevpn->vni, | |
1310 | prefix_mac2str(&mac->macaddr, macbuf, sizeof(macbuf)), | |
1311 | mac->es ? mac->es->esi_str : "-", mac->flags); | |
1312 | thread_add_timer(zrouter.master, zebra_evpn_mac_hold_exp_cb, mac, | |
1313 | zmh_info->mac_hold_time, &mac->hold_timer); | |
24268cd0 PR |
1314 | } |
1315 | ||
b2998086 | 1316 | void zebra_evpn_mac_stop_hold_timer(zebra_mac_t *mac) |
24268cd0 | 1317 | { |
b2998086 | 1318 | char macbuf[ETHER_ADDR_STRLEN]; |
24268cd0 | 1319 | |
b2998086 PR |
1320 | if (!mac->hold_timer) |
1321 | return; | |
24268cd0 | 1322 | |
b2998086 PR |
1323 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) |
1324 | zlog_debug( | |
1325 | "sync-mac vni %u mac %s es %s 0x%x hold stopped", | |
1326 | mac->zevpn->vni, | |
1327 | prefix_mac2str(&mac->macaddr, macbuf, sizeof(macbuf)), | |
1328 | mac->es ? mac->es->esi_str : "-", mac->flags); | |
1329 | THREAD_OFF(mac->hold_timer); | |
24268cd0 PR |
1330 | } |
1331 | ||
b2998086 | 1332 | void zebra_evpn_sync_mac_del(zebra_mac_t *mac) |
24268cd0 | 1333 | { |
b2998086 PR |
1334 | char macbuf[ETHER_ADDR_STRLEN]; |
1335 | bool old_static; | |
1336 | bool new_static; | |
24268cd0 | 1337 | |
b2998086 PR |
1338 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) |
1339 | zlog_debug( | |
1340 | "sync-mac del vni %u mac %s es %s seq %d f 0x%x", | |
1341 | mac->zevpn->vni, | |
1342 | prefix_mac2str(&mac->macaddr, macbuf, sizeof(macbuf)), | |
1343 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, | |
1344 | mac->flags); | |
1345 | old_static = zebra_evpn_mac_is_static(mac); | |
1346 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1347 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1348 | zebra_evpn_mac_start_hold_timer(mac); | |
1349 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1350 | |
b2998086 PR |
1351 | if (old_static != new_static) |
1352 | /* program the local mac in the kernel */ | |
1353 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1354 | false /* force_clear_static */, | |
1355 | __func__); | |
24268cd0 PR |
1356 | } |
1357 | ||
b2998086 PR |
1358 | static inline bool zebra_evpn_mac_is_bgp_seq_ok(zebra_evpn_t *zevpn, |
1359 | zebra_mac_t *mac, uint32_t seq, | |
1360 | uint16_t ipa_len, | |
1361 | struct ipaddr *ipaddr) | |
24268cd0 | 1362 | { |
b2998086 PR |
1363 | char macbuf[ETHER_ADDR_STRLEN]; |
1364 | char ipbuf[INET6_ADDRSTRLEN]; | |
1365 | uint32_t tmp_seq; | |
24268cd0 | 1366 | |
b2998086 PR |
1367 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) |
1368 | tmp_seq = mac->loc_seq; | |
1369 | else | |
1370 | tmp_seq = mac->rem_seq; | |
24268cd0 | 1371 | |
b2998086 PR |
1372 | if (seq < tmp_seq) { |
1373 | /* if the mac was never advertised to bgp we must accept | |
1374 | * whatever sequence number bgp sends | |
1375 | * XXX - check with Vivek | |
1376 | */ | |
1377 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) | |
1378 | && !zebra_evpn_mac_is_ready_for_bgp(mac->flags)) { | |
1379 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
1380 | zlog_debug( | |
1381 | "sync-macip accept vni %u mac %s%s%s lower seq %u f 0x%x", | |
1382 | zevpn->vni, | |
1383 | prefix_mac2str(&mac->macaddr, macbuf, | |
1384 | sizeof(macbuf)), | |
1385 | ipa_len ? " IP " : "", | |
1386 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1387 | sizeof(ipbuf)) | |
1388 | : "", | |
1389 | tmp_seq, mac->flags); | |
1390 | return true; | |
1391 | } | |
24268cd0 | 1392 | |
b2998086 PR |
1393 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) |
1394 | zlog_debug( | |
1395 | "sync-macip ignore vni %u mac %s%s%s as existing has higher seq %u f 0x%x", | |
1396 | zevpn->vni, | |
1397 | prefix_mac2str(&mac->macaddr, macbuf, | |
1398 | sizeof(macbuf)), | |
1399 | ipa_len ? " IP " : "", | |
1400 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1401 | sizeof(ipbuf)) | |
1402 | : "", | |
1403 | tmp_seq, mac->flags); | |
1404 | return false; | |
24268cd0 PR |
1405 | } |
1406 | ||
b2998086 | 1407 | return true; |
24268cd0 PR |
1408 | } |
1409 | ||
b2998086 PR |
1410 | zebra_mac_t * |
1411 | zebra_evpn_proc_sync_mac_update(zebra_evpn_t *zevpn, struct ethaddr *macaddr, | |
1412 | uint16_t ipa_len, struct ipaddr *ipaddr, | |
1413 | uint8_t flags, uint32_t seq, esi_t *esi, | |
1414 | struct sync_mac_ip_ctx *ctx) | |
24268cd0 | 1415 | { |
b2998086 PR |
1416 | zebra_mac_t *mac; |
1417 | bool inform_bgp = false; | |
1418 | bool inform_dataplane = false; | |
1419 | bool seq_change = false; | |
1420 | bool es_change = false; | |
1421 | uint32_t tmp_seq; | |
1422 | char macbuf[ETHER_ADDR_STRLEN]; | |
1423 | char ipbuf[INET6_ADDRSTRLEN]; | |
1424 | bool old_local = false; | |
1425 | bool old_bgp_ready; | |
1426 | bool new_bgp_ready; | |
24268cd0 | 1427 | |
b2998086 PR |
1428 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); |
1429 | if (!mac) { | |
1430 | /* if it is a new local path we need to inform both | |
1431 | * the control protocol and the data-plane | |
1432 | */ | |
1433 | inform_bgp = true; | |
1434 | inform_dataplane = true; | |
1435 | ctx->mac_created = true; | |
1436 | ctx->mac_inactive = true; | |
24268cd0 | 1437 | |
b2998086 PR |
1438 | /* create the MAC and associate it with the dest ES */ |
1439 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1440 | zebra_evpn_es_mac_ref(mac, esi); | |
24268cd0 | 1441 | |
b2998086 PR |
1442 | /* local mac activated by an ES peer */ |
1443 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
1444 | /* if mac-only route setup peer flags */ | |
1445 | if (!ipa_len) { | |
1446 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) | |
1447 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1448 | else | |
1449 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1450 | } | |
1451 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
1452 | old_bgp_ready = false; | |
1453 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1454 | } else { | |
1455 | uint32_t old_flags; | |
1456 | uint32_t new_flags; | |
1457 | bool old_static; | |
1458 | bool new_static; | |
1459 | bool sticky; | |
1460 | bool remote_gw; | |
24268cd0 | 1461 | |
b2998086 PR |
1462 | old_flags = mac->flags; |
1463 | sticky = !!CHECK_FLAG(old_flags, ZEBRA_MAC_STICKY); | |
1464 | remote_gw = !!CHECK_FLAG(old_flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
1465 | if (sticky || remote_gw) { | |
1466 | if (IS_ZEBRA_DEBUG_EVPN_MH_NEIGH) | |
1467 | zlog_debug( | |
1468 | "Ignore sync-macip vni %u mac %s%s%s%s%s", | |
1469 | zevpn->vni, | |
1470 | prefix_mac2str(macaddr, macbuf, | |
1471 | sizeof(macbuf)), | |
1472 | ipa_len ? " IP " : "", | |
1473 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1474 | sizeof(ipbuf)) | |
1475 | : "", | |
1476 | sticky ? " sticky" : "", | |
1477 | remote_gw ? " remote_gw" : ""); | |
1478 | ctx->ignore_macip = true; | |
1479 | return NULL; | |
1480 | } | |
1481 | if (!zebra_evpn_mac_is_bgp_seq_ok(zevpn, mac, seq, ipa_len, | |
1482 | ipaddr)) { | |
1483 | ctx->ignore_macip = true; | |
1484 | return NULL; | |
1485 | } | |
24268cd0 | 1486 | |
b2998086 PR |
1487 | old_local = !!CHECK_FLAG(old_flags, ZEBRA_MAC_LOCAL); |
1488 | old_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1489 | |
b2998086 PR |
1490 | /* re-build the mac flags */ |
1491 | new_flags = 0; | |
1492 | SET_FLAG(new_flags, ZEBRA_MAC_LOCAL); | |
1493 | /* retain old local activity flag */ | |
1494 | if (old_flags & ZEBRA_MAC_LOCAL) { | |
1495 | new_flags |= (old_flags & ZEBRA_MAC_LOCAL_INACTIVE); | |
1496 | } else { | |
1497 | new_flags |= ZEBRA_MAC_LOCAL_INACTIVE; | |
1498 | ctx->mac_inactive = true; | |
1499 | } | |
1500 | if (ipa_len) { | |
1501 | /* if mac-ip route do NOT update the peer flags | |
1502 | * i.e. retain only flags as is | |
1503 | */ | |
1504 | new_flags |= (old_flags & ZEBRA_MAC_ALL_PEER_FLAGS); | |
1505 | } else { | |
1506 | /* if mac-only route update peer flags */ | |
1507 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) { | |
1508 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1509 | /* if the mac was peer-active previously we | |
1510 | * need to keep the flag and start the | |
1511 | * holdtimer on it. the peer-active flag is | |
1512 | * cleared on holdtimer expiry. | |
1513 | */ | |
1514 | if (CHECK_FLAG(old_flags, | |
1515 | ZEBRA_MAC_ES_PEER_ACTIVE)) { | |
1516 | SET_FLAG(new_flags, | |
1517 | ZEBRA_MAC_ES_PEER_ACTIVE); | |
1518 | zebra_evpn_mac_start_hold_timer(mac); | |
1519 | } | |
1520 | } else { | |
1521 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1522 | /* stop hold timer if a peer has verified | |
1523 | * reachability | |
1524 | */ | |
1525 | zebra_evpn_mac_stop_hold_timer(mac); | |
1526 | } | |
1527 | } | |
1528 | mac->rem_seq = 0; | |
1529 | memset(&mac->fwd_info, 0, sizeof(mac->fwd_info)); | |
1530 | mac->flags = new_flags; | |
24268cd0 | 1531 | |
b2998086 PR |
1532 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC && (old_flags != new_flags)) |
1533 | zlog_debug( | |
1534 | "sync-mac vni %u mac %s old_f 0x%x new_f 0x%x", | |
1535 | zevpn->vni, | |
1536 | prefix_mac2str(macaddr, macbuf, sizeof(macbuf)), | |
1537 | old_flags, mac->flags); | |
24268cd0 | 1538 | |
b2998086 PR |
1539 | /* update es */ |
1540 | es_change = zebra_evpn_es_mac_ref(mac, esi); | |
1541 | /* if mac dest change - inform both sides */ | |
1542 | if (es_change) { | |
1543 | inform_bgp = true; | |
1544 | inform_dataplane = true; | |
1545 | ctx->mac_inactive = true; | |
1546 | } | |
1547 | /* if peer-flag is being set notify dataplane that the | |
1548 | * entry must not be expired because of local inactivity | |
1549 | */ | |
1550 | new_static = zebra_evpn_mac_is_static(mac); | |
1551 | if (old_static != new_static) | |
1552 | inform_dataplane = true; | |
24268cd0 | 1553 | |
b2998086 PR |
1554 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(old_flags); |
1555 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1556 | if (old_bgp_ready != new_bgp_ready) | |
1557 | inform_bgp = true; | |
1558 | } | |
24268cd0 | 1559 | |
24268cd0 | 1560 | |
b2998086 PR |
1561 | /* update sequence number; if that results in a new local sequence |
1562 | * inform bgp | |
1563 | */ | |
1564 | tmp_seq = MAX(mac->loc_seq, seq); | |
1565 | if (tmp_seq != mac->loc_seq) { | |
1566 | mac->loc_seq = tmp_seq; | |
1567 | seq_change = true; | |
1568 | inform_bgp = true; | |
1569 | } | |
24268cd0 | 1570 | |
b2998086 PR |
1571 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) |
1572 | zlog_debug("sync-mac %s vni %u mac %s es %s seq %d f 0x%x%s%s", | |
1573 | ctx->mac_created ? "created" : "updated", zevpn->vni, | |
1574 | prefix_mac2str(macaddr, macbuf, sizeof(macbuf)), | |
1575 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, | |
1576 | mac->flags, inform_bgp ? " inform_bgp" : "", | |
1577 | inform_dataplane ? " inform_dp" : ""); | |
24268cd0 | 1578 | |
b2998086 PR |
1579 | if (inform_bgp) |
1580 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1581 | new_bgp_ready); | |
24268cd0 | 1582 | |
b2998086 PR |
1583 | /* neighs using the mac may need to be re-sent to |
1584 | * bgp with updated info | |
1585 | */ | |
1586 | if (seq_change || es_change || !old_local) | |
1587 | zebra_evpn_process_neigh_on_local_mac_change( | |
1588 | zevpn, mac, seq_change, es_change); | |
24268cd0 | 1589 | |
b2998086 PR |
1590 | if (inform_dataplane) { |
1591 | if (ipa_len) | |
1592 | /* if the mac is being created as a part of MAC-IP | |
1593 | * route wait for the neigh to be updated or | |
1594 | * created before programming the mac | |
1595 | */ | |
1596 | ctx->mac_dp_update_deferred = true; | |
1597 | else | |
1598 | /* program the local mac in the kernel. when the ES | |
1599 | * change we need to force the dataplane to reset | |
1600 | * the activity as we are yet to establish activity | |
1601 | * locally | |
1602 | */ | |
1603 | zebra_evpn_sync_mac_dp_install( | |
1604 | mac, ctx->mac_inactive, | |
1605 | false /* force_clear_static */, __func__); | |
1606 | } | |
24268cd0 | 1607 | |
b2998086 | 1608 | return mac; |
24268cd0 PR |
1609 | } |
1610 | ||
b2998086 PR |
1611 | /* update local fowarding info. return true if a dest-ES change |
1612 | * is detected | |
1613 | */ | |
d9d3455e PR |
1614 | static bool zebra_evpn_local_mac_update_fwd_info(zebra_mac_t *mac, |
1615 | struct interface *ifp, | |
1616 | vlanid_t vid) | |
24268cd0 | 1617 | { |
b2998086 PR |
1618 | struct zebra_if *zif = ifp->info; |
1619 | bool es_change; | |
47c58929 PG |
1620 | ns_id_t local_ns_id = NS_DEFAULT; |
1621 | struct zebra_vrf *zvrf; | |
1622 | ||
1623 | zvrf = zebra_vrf_lookup_by_id(ifp->vrf_id); | |
1624 | if (zvrf && zvrf->zns) | |
1625 | local_ns_id = zvrf->zns->ns_id; | |
24268cd0 | 1626 | |
b2998086 | 1627 | memset(&mac->fwd_info, 0, sizeof(mac->fwd_info)); |
24268cd0 | 1628 | |
b2998086 | 1629 | es_change = zebra_evpn_es_mac_ref_entry(mac, zif->es_info.es); |
24268cd0 | 1630 | |
b2998086 PR |
1631 | if (!mac->es) { |
1632 | /* if es is set fwd_info is not-relevant/taped-out */ | |
1633 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
47c58929 | 1634 | mac->fwd_info.local.ns_id = local_ns_id; |
b2998086 | 1635 | mac->fwd_info.local.vid = vid; |
24268cd0 PR |
1636 | } |
1637 | ||
b2998086 | 1638 | return es_change; |
24268cd0 PR |
1639 | } |
1640 | ||
24268cd0 | 1641 | /* Notify Local MACs to the clienti, skips GW MAC */ |
b2998086 PR |
1642 | static void zebra_evpn_send_mac_hash_entry_to_client(struct hash_bucket *bucket, |
1643 | void *arg) | |
24268cd0 PR |
1644 | { |
1645 | struct mac_walk_ctx *wctx = arg; | |
1646 | zebra_mac_t *zmac = bucket->data; | |
1647 | ||
1648 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_DEF_GW)) | |
1649 | return; | |
1650 | ||
1651 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) | |
b2998086 PR |
1652 | zebra_evpn_mac_send_add_to_client(wctx->zevpn->vni, |
1653 | &zmac->macaddr, zmac->flags, | |
1654 | zmac->loc_seq, zmac->es); | |
24268cd0 PR |
1655 | } |
1656 | ||
1657 | /* Iterator to Notify Local MACs of a EVPN */ | |
b2998086 | 1658 | void zebra_evpn_send_mac_list_to_client(zebra_evpn_t *zevpn) |
24268cd0 PR |
1659 | { |
1660 | struct mac_walk_ctx wctx; | |
1661 | ||
1662 | if (!zevpn->mac_table) | |
1663 | return; | |
1664 | ||
1665 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); | |
1666 | wctx.zevpn = zevpn; | |
1667 | ||
b2998086 PR |
1668 | hash_iterate(zevpn->mac_table, zebra_evpn_send_mac_hash_entry_to_client, |
1669 | &wctx); | |
24268cd0 PR |
1670 | } |
1671 | ||
b2998086 | 1672 | void zebra_evpn_rem_mac_del(zebra_evpn_t *zevpn, zebra_mac_t *mac) |
24268cd0 | 1673 | { |
b2998086 PR |
1674 | zebra_evpn_process_neigh_on_remote_mac_del(zevpn, mac); |
1675 | /* the remote sequence number in the auto mac entry | |
1676 | * needs to be reset to 0 as the mac entry may have | |
1677 | * been removed on all VTEPs (including | |
1678 | * the originating one) | |
1679 | */ | |
1680 | mac->rem_seq = 0; | |
24268cd0 | 1681 | |
b2998086 PR |
1682 | /* If all remote neighbors referencing a remote MAC |
1683 | * go away, we need to uninstall the MAC. | |
1684 | */ | |
1685 | if (remote_neigh_count(mac) == 0) { | |
1686 | zebra_evpn_rem_mac_uninstall(zevpn, mac); | |
1687 | zebra_evpn_es_mac_deref_entry(mac); | |
1688 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
24268cd0 PR |
1689 | } |
1690 | ||
b2998086 PR |
1691 | if (list_isempty(mac->neigh_list)) |
1692 | zebra_evpn_mac_del(zevpn, mac); | |
1693 | else | |
1694 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
24268cd0 PR |
1695 | } |
1696 | ||
b2998086 PR |
1697 | /* Print Duplicate MAC */ |
1698 | void zebra_evpn_print_dad_mac_hash(struct hash_bucket *bucket, void *ctxt) | |
24268cd0 | 1699 | { |
b2998086 | 1700 | zebra_mac_t *mac; |
24268cd0 | 1701 | |
b2998086 PR |
1702 | mac = (zebra_mac_t *)bucket->data; |
1703 | if (!mac) | |
1704 | return; | |
24268cd0 | 1705 | |
b2998086 PR |
1706 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
1707 | zebra_evpn_print_mac_hash(bucket, ctxt); | |
24268cd0 PR |
1708 | } |
1709 | ||
b2998086 PR |
1710 | /* Print Duplicate MAC in detail */ |
1711 | void zebra_evpn_print_dad_mac_hash_detail(struct hash_bucket *bucket, | |
1712 | void *ctxt) | |
24268cd0 | 1713 | { |
b2998086 | 1714 | zebra_mac_t *mac; |
24268cd0 | 1715 | |
b2998086 PR |
1716 | mac = (zebra_mac_t *)bucket->data; |
1717 | if (!mac) | |
1718 | return; | |
24268cd0 | 1719 | |
b2998086 PR |
1720 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
1721 | zebra_evpn_print_mac_hash_detail(bucket, ctxt); | |
24268cd0 | 1722 | } |
19fdd1be PR |
1723 | |
1724 | int process_mac_remote_macip_add(zebra_evpn_t *zevpn, struct zebra_vrf *zvrf, | |
1725 | struct ethaddr *macaddr, uint16_t ipa_len, | |
1726 | struct ipaddr *ipaddr, zebra_mac_t **macp, | |
1727 | struct in_addr vtep_ip, uint8_t flags, | |
1728 | uint32_t seq, esi_t *esi) | |
1729 | { | |
1730 | char buf[ETHER_ADDR_STRLEN]; | |
1731 | char buf1[INET6_ADDRSTRLEN]; | |
1732 | uint32_t tmp_seq; | |
1733 | bool sticky; | |
1734 | bool remote_gw; | |
1735 | int update_mac = 0; | |
1736 | bool do_dad = false; | |
1737 | bool is_dup_detect = false; | |
1738 | esi_t *old_esi; | |
1739 | bool old_static = false; | |
1740 | zebra_mac_t *mac; | |
1741 | ||
1742 | sticky = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
1743 | remote_gw = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
1744 | ||
1745 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
1746 | ||
1747 | /* Ignore if the mac is already present as a gateway mac */ | |
1748 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) | |
1749 | && CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW)) { | |
1750 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1751 | zlog_debug( | |
1752 | "Ignore remote MACIP ADD VNI %u MAC %s%s%s as MAC is already configured as gateway MAC", | |
1753 | zevpn->vni, | |
1754 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
1755 | ipa_len ? " IP " : "", | |
1756 | ipa_len ? ipaddr2str(ipaddr, buf1, sizeof(buf1)) | |
1757 | : ""); | |
1758 | return -1; | |
1759 | } | |
1760 | ||
1761 | old_esi = (mac && mac->es) ? &mac->es->esi : zero_esi; | |
1762 | ||
1763 | /* check if the remote MAC is unknown or has a change. | |
1764 | * If so, that needs to be updated first. Note that client could | |
1765 | * install MAC and MACIP separately or just install the latter. | |
1766 | */ | |
1767 | if (!mac || !CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
1768 | || sticky != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) | |
1769 | || remote_gw != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) | |
1770 | || !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &vtep_ip) | |
1771 | || memcmp(old_esi, esi, sizeof(esi_t)) || seq != mac->rem_seq) | |
1772 | update_mac = 1; | |
1773 | ||
1774 | if (update_mac) { | |
1775 | if (!mac) { | |
1776 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1777 | if (!mac) { | |
1778 | zlog_warn( | |
9bcef951 | 1779 | "Failed to add MAC %s VNI %u Remote VTEP %pI4", |
19fdd1be PR |
1780 | prefix_mac2str(macaddr, buf, |
1781 | sizeof(buf)), | |
9bcef951 | 1782 | zevpn->vni, &vtep_ip); |
19fdd1be PR |
1783 | return -1; |
1784 | } | |
1785 | ||
1786 | zebra_evpn_es_mac_ref(mac, esi); | |
1787 | ||
1788 | /* Is this MAC created for a MACIP? */ | |
1789 | if (ipa_len) | |
1790 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
1791 | } else { | |
1792 | zebra_evpn_es_mac_ref(mac, esi); | |
1793 | ||
1794 | /* When host moves but changes its (MAC,IP) | |
1795 | * binding, BGP may install a MACIP entry that | |
1796 | * corresponds to "older" location of the host | |
1797 | * in transient situations (because {IP1,M1} | |
1798 | * is a different route from {IP1,M2}). Check | |
1799 | * the sequence number and ignore this update | |
1800 | * if appropriate. | |
1801 | */ | |
1802 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) | |
1803 | tmp_seq = mac->loc_seq; | |
1804 | else | |
1805 | tmp_seq = mac->rem_seq; | |
1806 | ||
1807 | if (seq < tmp_seq) { | |
1808 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1809 | zlog_debug( | |
1810 | "Ignore remote MACIP ADD VNI %u MAC %s%s%s as existing MAC has higher seq %u flags 0x%x", | |
1811 | zevpn->vni, | |
1812 | prefix_mac2str(macaddr, buf, | |
1813 | sizeof(buf)), | |
1814 | ipa_len ? " IP " : "", | |
1815 | ipa_len ? ipaddr2str( | |
1816 | ipaddr, buf1, | |
1817 | sizeof(buf1)) | |
1818 | : "", | |
1819 | tmp_seq, mac->flags); | |
1820 | return -1; | |
1821 | } | |
1822 | } | |
1823 | ||
1824 | /* Check MAC's curent state is local (this is the case | |
1825 | * where MAC has moved from L->R) and check previous | |
1826 | * detection started via local learning. | |
1827 | * RFC-7432: A PE/VTEP that detects a MAC mobility | |
1828 | * event via local learning starts an M-second timer. | |
1829 | * | |
1830 | * VTEP-IP or seq. change alone is not considered | |
1831 | * for dup. detection. | |
1832 | * | |
1833 | * MAC is already marked duplicate set dad, then | |
1834 | * is_dup_detect will be set to not install the entry. | |
1835 | */ | |
1836 | if ((!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
1837 | && mac->dad_count) | |
1838 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
1839 | do_dad = true; | |
1840 | ||
1841 | /* Remove local MAC from BGP. */ | |
1842 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
1843 | /* force drop the sync flags */ | |
1844 | old_static = zebra_evpn_mac_is_static(mac); | |
1845 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
1846 | zlog_debug( | |
1847 | "sync-mac->remote vni %u mac %s es %s seq %d f 0x%x", | |
1848 | zevpn->vni, | |
1849 | prefix_mac2str(macaddr, buf, | |
1850 | sizeof(buf)), | |
1851 | mac->es ? mac->es->esi_str : "-", | |
1852 | mac->loc_seq, mac->flags); | |
1853 | zebra_evpn_mac_clear_sync_info(mac); | |
1854 | zebra_evpn_mac_send_del_to_client(zevpn->vni, macaddr, | |
1855 | mac->flags, | |
1856 | false /* force */); | |
1857 | } | |
1858 | ||
1859 | /* Set "auto" and "remote" forwarding info. */ | |
1860 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); | |
1861 | memset(&mac->fwd_info, 0, sizeof(mac->fwd_info)); | |
1862 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
1863 | mac->fwd_info.r_vtep_ip = vtep_ip; | |
1864 | ||
1865 | if (sticky) | |
1866 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
1867 | else | |
1868 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
1869 | ||
1870 | if (remote_gw) | |
1871 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
1872 | else | |
1873 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
1874 | ||
1875 | zebra_evpn_dup_addr_detect_for_mac( | |
1876 | zvrf, mac, mac->fwd_info.r_vtep_ip, do_dad, | |
1877 | &is_dup_detect, false); | |
1878 | ||
1879 | if (!is_dup_detect) { | |
1880 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
1881 | /* Install the entry. */ | |
1882 | zebra_evpn_rem_mac_install(zevpn, mac, old_static); | |
1883 | } | |
1884 | } | |
1885 | ||
1886 | /* Update seq number. */ | |
1887 | mac->rem_seq = seq; | |
1888 | ||
1889 | /* If there is no IP, return after clearing AUTO flag of MAC. */ | |
1890 | if (!ipa_len) { | |
1891 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
1892 | return -1; | |
1893 | } | |
1894 | *macp = mac; | |
1895 | return 0; | |
1896 | } | |
d9d3455e PR |
1897 | |
1898 | int zebra_evpn_add_update_local_mac(struct zebra_vrf *zvrf, zebra_evpn_t *zevpn, | |
1899 | struct interface *ifp, | |
1900 | struct ethaddr *macaddr, vlanid_t vid, | |
1901 | bool sticky, bool local_inactive, | |
1902 | bool dp_static) | |
1903 | { | |
1904 | zebra_mac_t *mac; | |
1905 | char buf[ETHER_ADDR_STRLEN]; | |
1906 | bool mac_sticky = false; | |
1907 | bool inform_client = false; | |
1908 | bool upd_neigh = false; | |
1909 | bool is_dup_detect = false; | |
1910 | struct in_addr vtep_ip = {.s_addr = 0}; | |
1911 | bool es_change = false; | |
1912 | bool new_bgp_ready; | |
1913 | /* assume inactive if not present or if not local */ | |
1914 | bool old_local_inactive = true; | |
1915 | bool old_bgp_ready = false; | |
1916 | bool inform_dataplane = false; | |
1917 | bool new_static = false; | |
1918 | ||
2bdd4461 | 1919 | assert(ifp); |
d9d3455e PR |
1920 | /* Check if we need to create or update or it is a NO-OP. */ |
1921 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
1922 | if (!mac) { | |
1923 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
1924 | zlog_debug( | |
1925 | "ADD %sMAC %s intf %s(%u) VID %u -> VNI %u%s", | |
1926 | sticky ? "sticky " : "", | |
1927 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
1928 | ifp->name, ifp->ifindex, vid, zevpn->vni, | |
1929 | local_inactive ? " local-inactive" : ""); | |
1930 | ||
1931 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1932 | if (!mac) { | |
1933 | flog_err( | |
1934 | EC_ZEBRA_MAC_ADD_FAILED, | |
1935 | "Failed to add MAC %s intf %s(%u) VID %u VNI %u", | |
1936 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
1937 | ifp->name, ifp->ifindex, vid, zevpn->vni); | |
1938 | return -1; | |
1939 | } | |
1940 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
1941 | es_change = zebra_evpn_local_mac_update_fwd_info(mac, ifp, vid); | |
1942 | if (sticky) | |
1943 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
1944 | inform_client = true; | |
1945 | } else { | |
1946 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
1947 | zlog_debug( | |
1948 | "UPD %sMAC %s intf %s(%u) VID %u -> VNI %u %scurFlags 0x%x", | |
1949 | sticky ? "sticky " : "", | |
1950 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
1951 | ifp->name, ifp->ifindex, vid, zevpn->vni, | |
1952 | local_inactive ? "local-inactive " : "", | |
1953 | mac->flags); | |
1954 | ||
1955 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
1956 | struct interface *old_ifp; | |
1957 | vlanid_t old_vid; | |
1958 | bool old_static; | |
1959 | ||
1960 | zebra_evpn_mac_get_access_info(mac, &old_ifp, &old_vid); | |
1961 | old_bgp_ready = | |
1962 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1963 | old_local_inactive = | |
1964 | !!(mac->flags & ZEBRA_MAC_LOCAL_INACTIVE); | |
1965 | old_static = zebra_evpn_mac_is_static(mac); | |
1966 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) | |
1967 | mac_sticky = true; | |
1968 | ||
1969 | /* | |
1970 | * Update any changes and if changes are relevant to | |
1971 | * BGP, note it. | |
1972 | */ | |
1973 | if (mac_sticky == sticky && old_ifp == ifp | |
1974 | && old_vid == vid | |
1975 | && old_local_inactive == local_inactive | |
1976 | && dp_static == old_static) { | |
1977 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1978 | zlog_debug( | |
1979 | " Add/Update %sMAC %s intf %s(%u) VID %u -> VNI %u%s, " | |
1980 | "entry exists and has not changed ", | |
1981 | sticky ? "sticky " : "", | |
1982 | prefix_mac2str(macaddr, buf, | |
1983 | sizeof(buf)), | |
1984 | ifp->name, ifp->ifindex, vid, | |
1985 | zevpn->vni, | |
1986 | local_inactive | |
1987 | ? " local_inactive" | |
1988 | : ""); | |
1989 | return 0; | |
1990 | } | |
1991 | if (mac_sticky != sticky) { | |
1992 | if (sticky) | |
1993 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
1994 | else | |
1995 | UNSET_FLAG(mac->flags, | |
1996 | ZEBRA_MAC_STICKY); | |
1997 | inform_client = true; | |
1998 | } | |
1999 | ||
2000 | es_change = zebra_evpn_local_mac_update_fwd_info( | |
2001 | mac, ifp, vid); | |
2002 | /* If an es_change is detected we need to advertise | |
2003 | * the route with a sequence that is one | |
2004 | * greater. This is need to indicate a mac-move | |
2005 | * to the ES peers | |
2006 | */ | |
2007 | if (es_change) { | |
2008 | mac->loc_seq = mac->loc_seq + 1; | |
2009 | /* force drop the peer/sync info as it is | |
2010 | * simply no longer relevant | |
2011 | */ | |
2012 | if (CHECK_FLAG(mac->flags, | |
2013 | ZEBRA_MAC_ALL_PEER_FLAGS)) { | |
2014 | zebra_evpn_mac_clear_sync_info(mac); | |
2015 | new_static = | |
2016 | zebra_evpn_mac_is_static(mac); | |
2017 | /* if we clear peer-flags we | |
2018 | * also need to notify the dataplane | |
2019 | * to drop the static flag | |
2020 | */ | |
2021 | if (old_static != new_static) | |
2022 | inform_dataplane = true; | |
2023 | } | |
2024 | } | |
2025 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2026 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { | |
2027 | bool do_dad = false; | |
2028 | ||
2029 | /* | |
2030 | * MAC has either moved or was "internally" created due | |
2031 | * to a neighbor learn and is now actually learnt. If | |
2032 | * it was learnt as a remote sticky MAC, this is an | |
2033 | * operator error. | |
2034 | */ | |
2035 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) { | |
2036 | flog_warn( | |
2037 | EC_ZEBRA_STICKY_MAC_ALREADY_LEARNT, | |
9bcef951 | 2038 | "MAC %s already learnt as remote sticky MAC behind VTEP %pI4 VNI %u", |
d9d3455e PR |
2039 | prefix_mac2str(macaddr, buf, |
2040 | sizeof(buf)), | |
9bcef951 | 2041 | &mac->fwd_info.r_vtep_ip, |
d9d3455e PR |
2042 | zevpn->vni); |
2043 | return 0; | |
2044 | } | |
2045 | ||
2046 | /* If an actual move, compute MAC's seq number */ | |
2047 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
2048 | mac->loc_seq = | |
2049 | MAX(mac->rem_seq + 1, mac->loc_seq); | |
2050 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
2051 | /* Trigger DAD for remote MAC */ | |
2052 | do_dad = true; | |
2053 | } | |
2054 | ||
2055 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
2056 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2057 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
2058 | es_change = zebra_evpn_local_mac_update_fwd_info( | |
2059 | mac, ifp, vid); | |
2060 | if (sticky) | |
2061 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2062 | else | |
2063 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2064 | /* | |
2065 | * We have to inform BGP of this MAC as well as process | |
2066 | * all neighbors. | |
2067 | */ | |
2068 | inform_client = true; | |
2069 | upd_neigh = true; | |
2070 | ||
2071 | zebra_evpn_dup_addr_detect_for_mac( | |
2072 | zvrf, mac, vtep_ip, do_dad, &is_dup_detect, | |
2073 | true); | |
2074 | if (is_dup_detect) { | |
2075 | inform_client = false; | |
2076 | upd_neigh = false; | |
839dfe29 | 2077 | es_change = false; |
d9d3455e PR |
2078 | } |
2079 | } | |
2080 | } | |
2081 | ||
2082 | /* if the dataplane thinks the entry is sync but it is | |
2083 | * not sync in zebra we need to re-install to fixup | |
2084 | */ | |
2085 | if (dp_static) { | |
2086 | new_static = zebra_evpn_mac_is_static(mac); | |
2087 | if (!new_static) | |
2088 | inform_dataplane = true; | |
2089 | } | |
2090 | ||
2091 | if (local_inactive) | |
2092 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2093 | else | |
2094 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2095 | ||
2096 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2097 | /* if local-activity has changed we need update bgp | |
2098 | * even if bgp already knows about the mac | |
2099 | */ | |
2100 | if ((old_local_inactive != local_inactive) | |
2101 | || (new_bgp_ready != old_bgp_ready)) { | |
2102 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
2103 | zlog_debug( | |
2104 | "local mac vni %u mac %s es %s seq %d f 0x%x%s", | |
2105 | zevpn->vni, | |
2106 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2107 | mac->es ? mac->es->esi_str : "", mac->loc_seq, | |
2108 | mac->flags, | |
2109 | local_inactive ? " local-inactive" : ""); | |
839dfe29 CS |
2110 | if (!is_dup_detect) |
2111 | inform_client = true; | |
d9d3455e PR |
2112 | } |
2113 | ||
2114 | if (es_change) { | |
2115 | inform_client = true; | |
2116 | upd_neigh = true; | |
2117 | } | |
2118 | ||
2119 | /* Inform dataplane if required. */ | |
2120 | if (inform_dataplane) | |
2121 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
2122 | false /* force_clear_static */, | |
2123 | __func__); | |
2124 | ||
2125 | /* Inform BGP if required. */ | |
2126 | if (inform_client) | |
2127 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2128 | new_bgp_ready); | |
2129 | ||
2130 | /* Process all neighbors associated with this MAC, if required. */ | |
2131 | if (upd_neigh) | |
2132 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
2133 | es_change); | |
2134 | ||
2135 | return 0; | |
2136 | } | |
ad6ca5f4 PR |
2137 | |
2138 | int zebra_evpn_del_local_mac(zebra_evpn_t *zevpn, struct ethaddr *macaddr, | |
2139 | struct interface *ifp) | |
2140 | { | |
2141 | zebra_mac_t *mac; | |
2142 | char buf[ETHER_ADDR_STRLEN]; | |
2143 | bool old_bgp_ready; | |
2144 | bool new_bgp_ready; | |
2145 | /* If entry doesn't exist, nothing to do. */ | |
2146 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2147 | if (!mac) | |
2148 | return 0; | |
2149 | ||
2150 | /* Is it a local entry? */ | |
2151 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) | |
2152 | return 0; | |
2153 | ||
2154 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2155 | zlog_debug( | |
2156 | "DEL MAC %s intf %s(%u) VID %u -> VNI %u seq %u flags 0x%x nbr count %u", | |
2157 | prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name, | |
2158 | ifp->ifindex, mac->fwd_info.local.vid, zevpn->vni, | |
2159 | mac->loc_seq, mac->flags, listcount(mac->neigh_list)); | |
2160 | ||
2161 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2162 | if (zebra_evpn_mac_is_static(mac)) { | |
2163 | /* this is a synced entry and can only be removed when the | |
2164 | * es-peers stop advertising it. | |
2165 | */ | |
2166 | memset(&mac->fwd_info, 0, sizeof(mac->fwd_info)); | |
2167 | ||
2168 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
2169 | zlog_debug( | |
2170 | "re-add sync-mac vni %u mac %s es %s seq %d f 0x%x", | |
2171 | zevpn->vni, | |
2172 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2173 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, | |
2174 | mac->flags); | |
2175 | ||
2176 | /* inform-bgp about change in local-activity if any */ | |
2177 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) { | |
2178 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2179 | new_bgp_ready = | |
2180 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2181 | zebra_evpn_mac_send_add_del_to_client( | |
2182 | mac, old_bgp_ready, new_bgp_ready); | |
2183 | } | |
2184 | ||
2185 | /* re-install the entry in the kernel */ | |
2186 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
2187 | false /* force_clear_static */, | |
2188 | __func__); | |
2189 | ||
2190 | return 0; | |
2191 | } | |
2192 | ||
2193 | /* Update all the neigh entries associated with this mac */ | |
2194 | zebra_evpn_process_neigh_on_local_mac_del(zevpn, mac); | |
2195 | ||
2196 | /* Remove MAC from BGP. */ | |
2197 | zebra_evpn_mac_send_del_to_client(zevpn->vni, macaddr, mac->flags, | |
2198 | false /* force */); | |
2199 | ||
2200 | zebra_evpn_es_mac_deref_entry(mac); | |
2201 | ||
2202 | /* | |
2203 | * If there are no neigh associated with the mac delete the mac | |
2204 | * else mark it as AUTO for forward reference | |
2205 | */ | |
2206 | if (!listcount(mac->neigh_list)) { | |
2207 | zebra_evpn_mac_del(zevpn, mac); | |
2208 | } else { | |
2209 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); | |
2210 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2211 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2212 | } | |
2213 | ||
2214 | return 0; | |
2215 | } | |
7bce3535 PR |
2216 | |
2217 | int zebra_evpn_mac_gw_macip_add(struct interface *ifp, zebra_evpn_t *zevpn, | |
2218 | struct ipaddr *ip, zebra_mac_t **macp, | |
2219 | struct ethaddr *macaddr, vlanid_t vlan_id) | |
2220 | { | |
2221 | char buf[ETHER_ADDR_STRLEN]; | |
2222 | zebra_mac_t *mac; | |
47c58929 PG |
2223 | ns_id_t local_ns_id = NS_DEFAULT; |
2224 | struct zebra_vrf *zvrf; | |
2225 | ||
2226 | zvrf = zebra_vrf_lookup_by_id(ifp->vrf_id); | |
2227 | if (zvrf && zvrf->zns) | |
2228 | local_ns_id = zvrf->zns->ns_id; | |
7bce3535 PR |
2229 | |
2230 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2231 | if (!mac) { | |
2232 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
2233 | if (!mac) { | |
2234 | flog_err(EC_ZEBRA_MAC_ADD_FAILED, | |
2235 | "Failed to add MAC %s intf %s(%u) VID %u", | |
2236 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2237 | ifp->name, ifp->ifindex, vlan_id); | |
2238 | return -1; | |
2239 | } | |
2240 | } | |
2241 | ||
2242 | /* Set "local" forwarding info. */ | |
2243 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
2244 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2245 | SET_FLAG(mac->flags, ZEBRA_MAC_DEF_GW); | |
2246 | memset(&mac->fwd_info, 0, sizeof(mac->fwd_info)); | |
2247 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
47c58929 | 2248 | mac->fwd_info.local.ns_id = local_ns_id; |
7bce3535 PR |
2249 | mac->fwd_info.local.vid = vlan_id; |
2250 | ||
2251 | *macp = mac; | |
2252 | ||
2253 | return 0; | |
2254 | } |