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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" |
bf902d4c | 32 | #include "printfrr.h" |
24268cd0 | 33 | |
b2998086 | 34 | #include "zebra/zserv.h" |
24268cd0 | 35 | #include "zebra/debug.h" |
b2998086 | 36 | #include "zebra/zebra_router.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 | */ | |
f6371c34 | 50 | uint32_t num_valid_macs(struct zebra_evpn *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 | ||
f6371c34 | 74 | uint32_t num_dup_detected_macs(struct zebra_evpn *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 | ||
8b07f173 AK |
96 | /* Setup mac_list against the access port. This is done when a mac uses |
97 | * the ifp as destination for the first time | |
98 | */ | |
99 | static void zebra_evpn_mac_ifp_new(struct zebra_if *zif) | |
100 | { | |
101 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
102 | zlog_debug("MAC list created for ifp %s (%u)", zif->ifp->name, | |
103 | zif->ifp->ifindex); | |
104 | ||
105 | zif->mac_list = list_new(); | |
106 | listset_app_node_mem(zif->mac_list); | |
107 | } | |
108 | ||
109 | /* Free up the mac_list if any as a part of the interface del/cleanup */ | |
110 | void zebra_evpn_mac_ifp_del(struct interface *ifp) | |
111 | { | |
112 | struct zebra_if *zif = ifp->info; | |
113 | ||
114 | if (zif->mac_list) { | |
115 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
116 | zlog_debug("MAC list deleted for ifp %s (%u)", | |
117 | zif->ifp->name, zif->ifp->ifindex); | |
118 | list_delete(&zif->mac_list); | |
119 | } | |
120 | } | |
121 | ||
122 | /* Unlink local mac from a destination access port */ | |
123 | static void zebra_evpn_mac_ifp_unlink(zebra_mac_t *zmac) | |
124 | { | |
125 | struct zebra_if *zif; | |
126 | struct interface *ifp = zmac->ifp; | |
127 | ||
128 | if (!ifp) | |
129 | return; | |
130 | ||
131 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
132 | zlog_debug("VNI %d MAC %pEA unlinked from ifp %s (%u)", | |
133 | zmac->zevpn->vni, | |
134 | &zmac->macaddr, | |
135 | ifp->name, ifp->ifindex); | |
136 | ||
137 | zif = ifp->info; | |
138 | list_delete_node(zif->mac_list, &zmac->ifp_listnode); | |
139 | zmac->ifp = NULL; | |
140 | } | |
141 | ||
142 | /* Link local mac to destination access port. This is done only if the | |
143 | * local mac is associated with a zero ESI i.e. single attach or lacp-bypass | |
144 | * bridge port member | |
145 | */ | |
146 | static void zebra_evpn_mac_ifp_link(zebra_mac_t *zmac, struct interface *ifp) | |
147 | { | |
148 | struct zebra_if *zif; | |
149 | ||
150 | if (!CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) | |
151 | return; | |
152 | ||
153 | /* already linked to the destination */ | |
154 | if (zmac->ifp == ifp) | |
155 | return; | |
156 | ||
157 | /* unlink the mac from any old destination */ | |
158 | if (zmac->ifp) | |
159 | zebra_evpn_mac_ifp_unlink(zmac); | |
160 | ||
161 | if (!ifp) | |
162 | return; | |
163 | ||
164 | zif = ifp->info; | |
165 | /* the interface mac_list is created on first mac link attempt */ | |
166 | if (!zif->mac_list) | |
167 | zebra_evpn_mac_ifp_new(zif); | |
168 | ||
169 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
170 | zlog_debug("VNI %d MAC %pEA linked to ifp %s (%u)", | |
171 | zmac->zevpn->vni, | |
172 | &zmac->macaddr, | |
173 | ifp->name, ifp->ifindex); | |
174 | ||
175 | zmac->ifp = ifp; | |
176 | listnode_init(&zmac->ifp_listnode, zmac); | |
177 | listnode_add(zif->mac_list, &zmac->ifp_listnode); | |
178 | } | |
179 | ||
180 | /* If the mac is a local mac clear links to destination access port */ | |
181 | void zebra_evpn_mac_clear_fwd_info(zebra_mac_t *zmac) | |
182 | { | |
183 | zebra_evpn_mac_ifp_unlink(zmac); | |
184 | memset(&zmac->fwd_info, 0, sizeof(zmac->fwd_info)); | |
185 | } | |
186 | ||
b2998086 PR |
187 | /* |
188 | * Install remote MAC into the forwarding plane. | |
189 | */ | |
f6371c34 | 190 | int zebra_evpn_rem_mac_install(struct zebra_evpn *zevpn, zebra_mac_t *mac, |
b2998086 | 191 | bool was_static) |
24268cd0 | 192 | { |
b2998086 PR |
193 | const struct zebra_if *zif, *br_zif; |
194 | const struct zebra_l2info_vxlan *vxl; | |
195 | bool sticky; | |
196 | enum zebra_dplane_result res; | |
197 | const struct interface *br_ifp; | |
198 | vlanid_t vid; | |
199 | uint32_t nhg_id; | |
200 | struct in_addr vtep_ip; | |
24268cd0 | 201 | |
b2998086 PR |
202 | zif = zevpn->vxlan_if->info; |
203 | if (!zif) | |
204 | return -1; | |
205 | ||
206 | br_ifp = zif->brslave_info.br_if; | |
207 | if (br_ifp == NULL) | |
208 | return -1; | |
209 | ||
210 | vxl = &zif->l2info.vxl; | |
211 | ||
212 | sticky = !!CHECK_FLAG(mac->flags, | |
213 | (ZEBRA_MAC_STICKY | ZEBRA_MAC_REMOTE_DEF_GW)); | |
214 | ||
215 | /* If nexthop group for the FDB entry is inactive (not programmed in | |
216 | * the dataplane) the MAC entry cannot be installed | |
217 | */ | |
218 | if (mac->es) { | |
219 | if (!(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE)) | |
220 | return -1; | |
221 | nhg_id = mac->es->nhg_id; | |
222 | vtep_ip.s_addr = 0; | |
223 | } else { | |
224 | nhg_id = 0; | |
225 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
24268cd0 PR |
226 | } |
227 | ||
b2998086 PR |
228 | br_zif = (const struct zebra_if *)(br_ifp->info); |
229 | ||
230 | if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif)) | |
231 | vid = vxl->access_vlan; | |
232 | else | |
233 | vid = 0; | |
234 | ||
235 | res = dplane_rem_mac_add(zevpn->vxlan_if, br_ifp, vid, &mac->macaddr, | |
236 | vtep_ip, sticky, nhg_id, was_static); | |
237 | if (res != ZEBRA_DPLANE_REQUEST_FAILURE) | |
238 | return 0; | |
239 | else | |
240 | return -1; | |
24268cd0 PR |
241 | } |
242 | ||
b2998086 PR |
243 | /* |
244 | * Uninstall remote MAC from the forwarding plane. | |
245 | */ | |
f6371c34 | 246 | int zebra_evpn_rem_mac_uninstall(struct zebra_evpn *zevpn, zebra_mac_t *mac, |
f3722826 | 247 | bool force) |
24268cd0 | 248 | { |
b2998086 PR |
249 | const struct zebra_if *zif, *br_zif; |
250 | const struct zebra_l2info_vxlan *vxl; | |
251 | struct in_addr vtep_ip; | |
252 | const struct interface *ifp, *br_ifp; | |
253 | vlanid_t vid; | |
254 | enum zebra_dplane_result res; | |
24268cd0 | 255 | |
f3722826 AK |
256 | /* If the MAC was not installed there is no need to uninstall it */ |
257 | if (!force && mac->es && !(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE)) | |
258 | return -1; | |
259 | ||
b2998086 PR |
260 | if (!zevpn->vxlan_if) { |
261 | if (IS_ZEBRA_DEBUG_VXLAN) | |
262 | zlog_debug( | |
263 | "VNI %u hash %p couldn't be uninstalled - no intf", | |
264 | zevpn->vni, zevpn); | |
265 | return -1; | |
266 | } | |
24268cd0 | 267 | |
b2998086 PR |
268 | zif = zevpn->vxlan_if->info; |
269 | if (!zif) | |
270 | return -1; | |
24268cd0 | 271 | |
b2998086 PR |
272 | br_ifp = zif->brslave_info.br_if; |
273 | if (br_ifp == NULL) | |
274 | return -1; | |
24268cd0 | 275 | |
b2998086 | 276 | vxl = &zif->l2info.vxl; |
24268cd0 | 277 | |
b2998086 | 278 | br_zif = (const struct zebra_if *)br_ifp->info; |
24268cd0 | 279 | |
b2998086 PR |
280 | if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif)) |
281 | vid = vxl->access_vlan; | |
282 | else | |
283 | vid = 0; | |
24268cd0 | 284 | |
b2998086 PR |
285 | ifp = zevpn->vxlan_if; |
286 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
287 | ||
288 | res = dplane_rem_mac_del(ifp, br_ifp, vid, &mac->macaddr, vtep_ip); | |
289 | if (res != ZEBRA_DPLANE_REQUEST_FAILURE) | |
290 | return 0; | |
291 | else | |
292 | return -1; | |
24268cd0 PR |
293 | } |
294 | ||
b2998086 PR |
295 | /* |
296 | * Decrement neighbor refcount of MAC; uninstall and free it if | |
297 | * appropriate. | |
24268cd0 | 298 | */ |
f6371c34 | 299 | void zebra_evpn_deref_ip2mac(struct zebra_evpn *zevpn, zebra_mac_t *mac) |
24268cd0 | 300 | { |
b2998086 PR |
301 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) |
302 | return; | |
24268cd0 | 303 | |
b2998086 PR |
304 | /* If all remote neighbors referencing a remote MAC go away, |
305 | * we need to uninstall the MAC. | |
24268cd0 | 306 | */ |
b2998086 PR |
307 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) |
308 | && remote_neigh_count(mac) == 0) { | |
f3722826 | 309 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false /*force*/); |
b2998086 PR |
310 | zebra_evpn_es_mac_deref_entry(mac); |
311 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
312 | } | |
313 | ||
243b74ed AK |
314 | /* If no references, delete the MAC. */ |
315 | if (!zebra_evpn_mac_in_use(mac)) | |
b2998086 PR |
316 | zebra_evpn_mac_del(zevpn, mac); |
317 | } | |
318 | ||
d9d3455e PR |
319 | static void zebra_evpn_mac_get_access_info(zebra_mac_t *mac, |
320 | struct interface **ifpP, | |
321 | vlanid_t *vid) | |
b2998086 PR |
322 | { |
323 | /* if the mac is associated with an ES we must get the access | |
324 | * info from the ES | |
24268cd0 | 325 | */ |
b2998086 PR |
326 | if (mac->es) { |
327 | struct zebra_if *zif; | |
328 | ||
329 | /* get the access port from the es */ | |
330 | *ifpP = mac->es->zif ? mac->es->zif->ifp : NULL; | |
331 | /* get the vlan from the EVPN */ | |
332 | if (mac->zevpn->vxlan_if) { | |
333 | zif = mac->zevpn->vxlan_if->info; | |
334 | *vid = zif->l2info.vxl.access_vlan; | |
335 | } else { | |
336 | *vid = 0; | |
337 | } | |
338 | } else { | |
339 | struct zebra_ns *zns; | |
340 | ||
341 | *vid = mac->fwd_info.local.vid; | |
47c58929 | 342 | zns = zebra_ns_lookup(mac->fwd_info.local.ns_id); |
b2998086 PR |
343 | *ifpP = if_lookup_by_index_per_ns(zns, |
344 | mac->fwd_info.local.ifindex); | |
345 | } | |
346 | } | |
347 | ||
b16e8004 DS |
348 | #define MAC_BUF_SIZE 256 |
349 | static char *zebra_evpn_zebra_mac_flag_dump(struct zebra_mac_t_ *mac, char *buf, | |
350 | size_t len) | |
351 | { | |
352 | if (mac->flags == 0) { | |
353 | snprintfrr(buf, len, "None "); | |
354 | return buf; | |
355 | } | |
356 | ||
357 | snprintfrr( | |
358 | buf, len, "%s%s%s%s%s%s%s%s%s%s%s%s", | |
359 | CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) ? "LOC " : "", | |
360 | CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) ? "REM " : "", | |
361 | CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO) ? "AUTO " : "", | |
362 | CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) ? "STICKY " : "", | |
363 | CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_RMAC) ? "REM Router " | |
364 | : "", | |
365 | CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) ? "Default GW " : "", | |
366 | CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) ? "REM DEF GW " | |
367 | : "", | |
368 | CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE) ? "DUP " : "", | |
369 | CHECK_FLAG(mac->flags, ZEBRA_MAC_FPM_SENT) ? "FPM " : "", | |
370 | CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE) ? "LOC Active " | |
371 | : "", | |
372 | CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY) ? "PROXY " : "", | |
373 | CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE) | |
374 | ? "LOC Inactive " | |
375 | : ""); | |
376 | return buf; | |
377 | } | |
378 | ||
b2998086 PR |
379 | static int zebra_evpn_dad_mac_auto_recovery_exp(struct thread *t) |
380 | { | |
381 | struct zebra_vrf *zvrf = NULL; | |
382 | zebra_mac_t *mac = NULL; | |
f6371c34 | 383 | struct zebra_evpn *zevpn = NULL; |
b2998086 PR |
384 | struct listnode *node = NULL; |
385 | zebra_neigh_t *nbr = NULL; | |
b2998086 PR |
386 | |
387 | mac = THREAD_ARG(t); | |
388 | ||
389 | /* since this is asynchronous we need sanity checks*/ | |
390 | zvrf = vrf_info_lookup(mac->zevpn->vrf_id); | |
391 | if (!zvrf) | |
392 | return 0; | |
393 | ||
8b5fdf2e | 394 | zevpn = zebra_evpn_lookup(mac->zevpn->vni); |
b2998086 PR |
395 | if (!zevpn) |
396 | return 0; | |
397 | ||
398 | mac = zebra_evpn_mac_lookup(zevpn, &mac->macaddr); | |
399 | if (!mac) | |
400 | return 0; | |
401 | ||
b16e8004 DS |
402 | if (IS_ZEBRA_DEBUG_VXLAN) { |
403 | char mac_buf[MAC_BUF_SIZE]; | |
404 | ||
b2998086 | 405 | zlog_debug( |
ef7b8be4 DL |
406 | "%s: duplicate addr mac %pEA flags %slearn count %u host count %u auto recovery expired", |
407 | __func__, &mac->macaddr, | |
b16e8004 DS |
408 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
409 | sizeof(mac_buf)), | |
410 | mac->dad_count, listcount(mac->neigh_list)); | |
411 | } | |
b2998086 PR |
412 | |
413 | /* Remove all IPs as duplicate associcated with this MAC */ | |
414 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
415 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) { | |
416 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
417 | ZEBRA_NEIGH_SET_INACTIVE(nbr); | |
418 | else if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE)) | |
419 | zebra_evpn_rem_neigh_install( | |
420 | zevpn, nbr, false /*was_static*/); | |
421 | } | |
24268cd0 | 422 | |
24268cd0 PR |
423 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); |
424 | nbr->dad_count = 0; | |
425 | nbr->detect_start_time.tv_sec = 0; | |
b2998086 PR |
426 | nbr->dad_dup_detect_time = 0; |
427 | } | |
428 | ||
429 | UNSET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
430 | mac->dad_count = 0; | |
431 | mac->detect_start_time.tv_sec = 0; | |
432 | mac->detect_start_time.tv_usec = 0; | |
433 | mac->dad_dup_detect_time = 0; | |
434 | mac->dad_mac_auto_recovery_timer = NULL; | |
435 | ||
436 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
437 | /* Inform to BGP */ | |
438 | if (zebra_evpn_mac_send_add_to_client(zevpn->vni, &mac->macaddr, | |
439 | mac->flags, mac->loc_seq, | |
440 | mac->es)) | |
441 | return -1; | |
442 | ||
443 | /* Process all neighbors associated with this MAC. */ | |
444 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
445 | 0 /*es_change*/); | |
446 | ||
447 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
448 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
449 | ||
450 | /* Install the entry. */ | |
451 | zebra_evpn_rem_mac_install(zevpn, mac, false /* was_static */); | |
24268cd0 | 452 | } |
b2998086 | 453 | |
24268cd0 PR |
454 | return 0; |
455 | } | |
456 | ||
d9d3455e PR |
457 | static void zebra_evpn_dup_addr_detect_for_mac(struct zebra_vrf *zvrf, |
458 | zebra_mac_t *mac, | |
459 | struct in_addr vtep_ip, | |
460 | bool do_dad, bool *is_dup_detect, | |
461 | bool is_local) | |
24268cd0 PR |
462 | { |
463 | zebra_neigh_t *nbr; | |
464 | struct listnode *node = NULL; | |
465 | struct timeval elapsed = {0, 0}; | |
24268cd0 PR |
466 | bool reset_params = false; |
467 | ||
b2ee2b71 | 468 | if (!(zebra_evpn_do_dup_addr_detect(zvrf) && do_dad)) |
24268cd0 PR |
469 | return; |
470 | ||
471 | /* MAC is detected as duplicate, | |
472 | * Local MAC event -> hold on advertising to BGP. | |
473 | * Remote MAC event -> hold on installing it. | |
474 | */ | |
475 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { | |
b16e8004 DS |
476 | if (IS_ZEBRA_DEBUG_VXLAN) { |
477 | char mac_buf[MAC_BUF_SIZE]; | |
478 | ||
24268cd0 | 479 | zlog_debug( |
ef7b8be4 DL |
480 | "%s: duplicate addr MAC %pEA flags %sskip update to client, learn count %u recover time %u", |
481 | __func__, &mac->macaddr, | |
b16e8004 DS |
482 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
483 | sizeof(mac_buf)), | |
484 | mac->dad_count, zvrf->dad_freeze_time); | |
485 | } | |
24268cd0 PR |
486 | /* For duplicate MAC do not update |
487 | * client but update neigh due to | |
488 | * this MAC update. | |
489 | */ | |
490 | if (zvrf->dad_freeze) | |
491 | *is_dup_detect = true; | |
492 | ||
493 | return; | |
494 | } | |
495 | ||
496 | /* Check if detection time (M-secs) expired. | |
497 | * Reset learn count and detection start time. | |
498 | */ | |
499 | monotime_since(&mac->detect_start_time, &elapsed); | |
500 | reset_params = (elapsed.tv_sec > zvrf->dad_time); | |
501 | if (is_local && !reset_params) { | |
502 | /* RFC-7432: A PE/VTEP that detects a MAC mobility | |
503 | * event via LOCAL learning starts an M-second timer. | |
504 | * | |
505 | * NOTE: This is the START of the probe with count is | |
506 | * 0 during LOCAL learn event. | |
507 | * (mac->dad_count == 0 || elapsed.tv_sec >= zvrf->dad_time) | |
508 | */ | |
509 | reset_params = !mac->dad_count; | |
510 | } | |
511 | ||
512 | if (reset_params) { | |
b16e8004 DS |
513 | if (IS_ZEBRA_DEBUG_VXLAN) { |
514 | char mac_buf[MAC_BUF_SIZE]; | |
515 | ||
24268cd0 | 516 | zlog_debug( |
ef7b8be4 DL |
517 | "%s: duplicate addr MAC %pEA flags %sdetection time passed, reset learn count %u", |
518 | __func__, &mac->macaddr, | |
b16e8004 DS |
519 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
520 | sizeof(mac_buf)), | |
521 | mac->dad_count); | |
522 | } | |
24268cd0 PR |
523 | |
524 | mac->dad_count = 0; | |
525 | /* Start dup. addr detection (DAD) start time, | |
526 | * ONLY during LOCAL learn. | |
527 | */ | |
528 | if (is_local) | |
529 | monotime(&mac->detect_start_time); | |
530 | ||
531 | } else if (!is_local) { | |
532 | /* For REMOTE MAC, increment detection count | |
533 | * ONLY while in probe window, once window passed, | |
534 | * next local learn event should trigger DAD. | |
535 | */ | |
536 | mac->dad_count++; | |
537 | } | |
538 | ||
539 | /* For LOCAL MAC learn event, once count is reset above via either | |
540 | * initial/start detection time or passed the probe time, the count | |
541 | * needs to be incremented. | |
542 | */ | |
543 | if (is_local) | |
544 | mac->dad_count++; | |
545 | ||
546 | if (mac->dad_count >= zvrf->dad_max_moves) { | |
547 | flog_warn(EC_ZEBRA_DUP_MAC_DETECTED, | |
ef7b8be4 DL |
548 | "VNI %u: MAC %pEA detected as duplicate during %s VTEP %pI4", |
549 | mac->zevpn->vni, &mac->macaddr, | |
24268cd0 | 550 | is_local ? "local update, last" : |
9bcef951 | 551 | "remote update, from", &vtep_ip); |
24268cd0 PR |
552 | |
553 | SET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
554 | ||
555 | /* Capture Duplicate detection time */ | |
556 | mac->dad_dup_detect_time = monotime(NULL); | |
557 | ||
558 | /* Mark all IPs/Neighs as duplicate | |
559 | * associcated with this MAC | |
560 | */ | |
561 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
562 | ||
563 | /* Ony Mark IPs which are Local */ | |
564 | if (!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
565 | continue; | |
566 | ||
567 | SET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
568 | ||
569 | nbr->dad_dup_detect_time = monotime(NULL); | |
570 | ||
571 | flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED, | |
ef7b8be4 DL |
572 | "VNI %u: MAC %pEA IP %pIA detected as duplicate during %s update, inherit duplicate from MAC", |
573 | mac->zevpn->vni, &mac->macaddr, &nbr->ip, | |
24268cd0 PR |
574 | is_local ? "local" : "remote"); |
575 | } | |
576 | ||
577 | /* Start auto recovery timer for this MAC */ | |
578 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
579 | if (zvrf->dad_freeze && zvrf->dad_freeze_time) { | |
b16e8004 DS |
580 | if (IS_ZEBRA_DEBUG_VXLAN) { |
581 | char mac_buf[MAC_BUF_SIZE]; | |
582 | ||
24268cd0 | 583 | zlog_debug( |
ef7b8be4 DL |
584 | "%s: duplicate addr MAC %pEA flags %sauto recovery time %u start", |
585 | __func__, &mac->macaddr, | |
b16e8004 DS |
586 | zebra_evpn_zebra_mac_flag_dump( |
587 | mac, mac_buf, sizeof(mac_buf)), | |
588 | zvrf->dad_freeze_time); | |
589 | } | |
24268cd0 PR |
590 | |
591 | thread_add_timer(zrouter.master, | |
b2998086 | 592 | zebra_evpn_dad_mac_auto_recovery_exp, |
24268cd0 PR |
593 | mac, zvrf->dad_freeze_time, |
594 | &mac->dad_mac_auto_recovery_timer); | |
595 | } | |
596 | ||
597 | /* In case of local update, do not inform to client (BGPd), | |
598 | * upd_neigh for neigh sequence change. | |
599 | */ | |
600 | if (zvrf->dad_freeze) | |
601 | *is_dup_detect = true; | |
602 | } | |
603 | } | |
604 | ||
b2998086 PR |
605 | /* |
606 | * Print a specific MAC entry. | |
607 | */ | |
608 | void zebra_evpn_print_mac(zebra_mac_t *mac, void *ctxt, json_object *json) | |
24268cd0 | 609 | { |
b2998086 PR |
610 | struct vty *vty; |
611 | zebra_neigh_t *n = NULL; | |
612 | struct listnode *node = NULL; | |
613 | char buf1[ETHER_ADDR_STRLEN]; | |
614 | char buf2[INET6_ADDRSTRLEN]; | |
9bcef951 | 615 | char addr_buf[PREFIX_STRLEN]; |
b2998086 PR |
616 | struct zebra_vrf *zvrf; |
617 | struct timeval detect_start_time = {0, 0}; | |
618 | char timebuf[MONOTIME_STRLEN]; | |
619 | char thread_buf[THREAD_TIMER_STRLEN]; | |
f1dbb1c7 DS |
620 | time_t uptime; |
621 | char up_str[MONOTIME_STRLEN]; | |
24268cd0 | 622 | |
b2998086 PR |
623 | zvrf = zebra_vrf_get_evpn(); |
624 | if (!zvrf) | |
24268cd0 PR |
625 | return; |
626 | ||
b2998086 PR |
627 | vty = (struct vty *)ctxt; |
628 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
24268cd0 | 629 | |
f1dbb1c7 DS |
630 | uptime = monotime(NULL); |
631 | uptime -= mac->uptime; | |
632 | ||
633 | frrtime_to_interval(uptime, up_str, sizeof(up_str)); | |
634 | ||
b2998086 PR |
635 | if (json) { |
636 | json_object *json_mac = json_object_new_object(); | |
24268cd0 | 637 | |
b2998086 PR |
638 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
639 | struct interface *ifp; | |
640 | vlanid_t vid; | |
24268cd0 | 641 | |
b2998086 PR |
642 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
643 | json_object_string_add(json_mac, "type", "local"); | |
644 | if (ifp) { | |
645 | json_object_string_add(json_mac, "intf", | |
646 | ifp->name); | |
647 | json_object_int_add(json_mac, "ifindex", | |
648 | ifp->ifindex); | |
649 | } | |
650 | if (vid) | |
651 | json_object_int_add(json_mac, "vlan", vid); | |
652 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
653 | json_object_string_add(json_mac, "type", "remote"); | |
654 | json_object_string_add( | |
655 | json_mac, "remoteVtep", | |
9bcef951 MS |
656 | inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip, |
657 | addr_buf, sizeof(addr_buf))); | |
b2998086 PR |
658 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) |
659 | json_object_string_add(json_mac, "type", "auto"); | |
24268cd0 | 660 | |
b2998086 PR |
661 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) |
662 | json_object_boolean_true_add(json_mac, "stickyMac"); | |
24268cd0 | 663 | |
243b74ed AK |
664 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) |
665 | json_object_boolean_true_add(json_mac, "sviMac"); | |
666 | ||
b2998086 PR |
667 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) |
668 | json_object_boolean_true_add(json_mac, | |
669 | "defaultGateway"); | |
24268cd0 | 670 | |
b2998086 PR |
671 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) |
672 | json_object_boolean_true_add(json_mac, | |
673 | "remoteGatewayMac"); | |
24268cd0 | 674 | |
f1dbb1c7 | 675 | json_object_string_add(json_mac, "uptime", up_str); |
b2998086 PR |
676 | json_object_int_add(json_mac, "localSequence", mac->loc_seq); |
677 | json_object_int_add(json_mac, "remoteSequence", mac->rem_seq); | |
24268cd0 | 678 | |
b2998086 PR |
679 | json_object_int_add(json_mac, "detectionCount", mac->dad_count); |
680 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
681 | json_object_boolean_true_add(json_mac, "isDuplicate"); | |
682 | else | |
683 | json_object_boolean_false_add(json_mac, "isDuplicate"); | |
24268cd0 | 684 | |
b2998086 PR |
685 | json_object_int_add(json_mac, "syncNeighCount", |
686 | mac->sync_neigh_cnt); | |
687 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) | |
688 | json_object_boolean_true_add(json_mac, "localInactive"); | |
689 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY)) | |
690 | json_object_boolean_true_add(json_mac, "peerProxy"); | |
691 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
692 | json_object_boolean_true_add(json_mac, "peerActive"); | |
693 | if (mac->hold_timer) | |
694 | json_object_string_add( | |
695 | json_mac, "peerActiveHold", | |
696 | thread_timer_to_hhmmss(thread_buf, | |
697 | sizeof(thread_buf), | |
698 | mac->hold_timer)); | |
699 | if (mac->es) | |
700 | json_object_string_add(json_mac, "esi", | |
701 | mac->es->esi_str); | |
702 | /* print all the associated neigh */ | |
703 | if (!listcount(mac->neigh_list)) | |
704 | json_object_string_add(json_mac, "neighbors", "none"); | |
705 | else { | |
706 | json_object *json_active_nbrs = json_object_new_array(); | |
707 | json_object *json_inactive_nbrs = | |
708 | json_object_new_array(); | |
709 | json_object *json_nbrs = json_object_new_object(); | |
24268cd0 | 710 | |
b2998086 PR |
711 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { |
712 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) | |
713 | json_object_array_add( | |
714 | json_active_nbrs, | |
715 | json_object_new_string( | |
716 | ipaddr2str( | |
717 | &n->ip, buf2, | |
718 | sizeof(buf2)))); | |
719 | else | |
720 | json_object_array_add( | |
721 | json_inactive_nbrs, | |
722 | json_object_new_string( | |
723 | ipaddr2str( | |
724 | &n->ip, buf2, | |
725 | sizeof(buf2)))); | |
726 | } | |
24268cd0 | 727 | |
b2998086 PR |
728 | json_object_object_add(json_nbrs, "active", |
729 | json_active_nbrs); | |
730 | json_object_object_add(json_nbrs, "inactive", | |
731 | json_inactive_nbrs); | |
732 | json_object_object_add(json_mac, "neighbors", | |
733 | json_nbrs); | |
24268cd0 | 734 | } |
24268cd0 | 735 | |
b2998086 PR |
736 | json_object_object_add(json, buf1, json_mac); |
737 | } else { | |
738 | vty_out(vty, "MAC: %s\n", buf1); | |
24268cd0 | 739 | |
b2998086 PR |
740 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
741 | struct interface *ifp; | |
742 | vlanid_t vid; | |
24268cd0 | 743 | |
b2998086 | 744 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
24268cd0 | 745 | |
b2998086 PR |
746 | if (mac->es) |
747 | vty_out(vty, " ESI: %s\n", mac->es->esi_str); | |
24268cd0 | 748 | |
b2998086 PR |
749 | if (ifp) |
750 | vty_out(vty, " Intf: %s(%u)", ifp->name, | |
751 | ifp->ifindex); | |
752 | else | |
753 | vty_out(vty, " Intf: -"); | |
754 | vty_out(vty, " VLAN: %u", vid); | |
755 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
756 | if (mac->es) | |
757 | vty_out(vty, " Remote ES: %s", | |
758 | mac->es->esi_str); | |
759 | else | |
9bcef951 MS |
760 | vty_out(vty, " Remote VTEP: %pI4", |
761 | &mac->fwd_info.r_vtep_ip); | |
b2998086 PR |
762 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { |
763 | vty_out(vty, " Auto Mac "); | |
764 | } | |
24268cd0 | 765 | |
b2998086 PR |
766 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) |
767 | vty_out(vty, " Sticky Mac "); | |
24268cd0 | 768 | |
243b74ed AK |
769 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) |
770 | vty_out(vty, " SVI-Mac "); | |
771 | ||
b2998086 PR |
772 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) |
773 | vty_out(vty, " Default-gateway Mac "); | |
774 | ||
775 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) | |
776 | vty_out(vty, " Remote-gateway Mac "); | |
777 | ||
778 | vty_out(vty, "\n"); | |
779 | vty_out(vty, " Sync-info: neigh#: %u", mac->sync_neigh_cnt); | |
780 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) | |
24268cd0 | 781 | vty_out(vty, " local-inactive"); |
b2998086 | 782 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY)) |
24268cd0 | 783 | vty_out(vty, " peer-proxy"); |
b2998086 | 784 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) |
24268cd0 | 785 | vty_out(vty, " peer-active"); |
b2998086 | 786 | if (mac->hold_timer) |
24268cd0 | 787 | vty_out(vty, " (ht: %s)", |
b2998086 PR |
788 | thread_timer_to_hhmmss(thread_buf, |
789 | sizeof(thread_buf), | |
790 | mac->hold_timer)); | |
791 | vty_out(vty, "\n"); | |
f1dbb1c7 | 792 | vty_out(vty, " Local Seq: %u Remote Seq: %u\n", mac->loc_seq, |
b2998086 | 793 | mac->rem_seq); |
f1dbb1c7 | 794 | vty_out(vty, " Uptime: %s\n", up_str); |
24268cd0 | 795 | |
b2998086 | 796 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { |
24268cd0 | 797 | vty_out(vty, " Duplicate, detected at %s", |
b2998086 | 798 | time_to_string(mac->dad_dup_detect_time, |
24268cd0 | 799 | timebuf)); |
b2998086 PR |
800 | } else if (mac->dad_count) { |
801 | monotime_since(&mac->detect_start_time, | |
24268cd0 PR |
802 | &detect_start_time); |
803 | if (detect_start_time.tv_sec <= zvrf->dad_time) { | |
b2998086 | 804 | time_to_string(mac->detect_start_time.tv_sec, |
24268cd0 PR |
805 | timebuf); |
806 | vty_out(vty, | |
807 | " Duplicate detection started at %s, detection count %u\n", | |
b2998086 | 808 | timebuf, mac->dad_count); |
24268cd0 PR |
809 | } |
810 | } | |
24268cd0 | 811 | |
b2998086 PR |
812 | /* print all the associated neigh */ |
813 | vty_out(vty, " Neighbors:\n"); | |
814 | if (!listcount(mac->neigh_list)) | |
815 | vty_out(vty, " No Neighbors\n"); | |
816 | else { | |
817 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { | |
818 | vty_out(vty, " %s %s\n", | |
819 | ipaddr2str(&n->ip, buf2, sizeof(buf2)), | |
820 | (IS_ZEBRA_NEIGH_ACTIVE(n) | |
821 | ? "Active" | |
822 | : "Inactive")); | |
823 | } | |
824 | } | |
24268cd0 | 825 | |
b2998086 | 826 | vty_out(vty, "\n"); |
24268cd0 PR |
827 | } |
828 | } | |
829 | ||
b2998086 | 830 | static char *zebra_evpn_print_mac_flags(zebra_mac_t *mac, char *flags_buf, |
700cae76 | 831 | size_t flags_buf_sz) |
24268cd0 | 832 | { |
b2998086 | 833 | snprintf(flags_buf, flags_buf_sz, "%s%s%s%s", |
00a7710c AK |
834 | mac->sync_neigh_cnt ? "N" : "", |
835 | (mac->flags & ZEBRA_MAC_ES_PEER_ACTIVE) ? "P" : "", | |
836 | (mac->flags & ZEBRA_MAC_ES_PEER_PROXY) ? "X" : "", | |
837 | (mac->flags & ZEBRA_MAC_LOCAL_INACTIVE) ? "I" : ""); | |
24268cd0 PR |
838 | |
839 | return flags_buf; | |
840 | } | |
841 | ||
842 | /* | |
b2998086 | 843 | * Print MAC hash entry - called for display of all MACs. |
24268cd0 | 844 | */ |
b2998086 | 845 | void zebra_evpn_print_mac_hash(struct hash_bucket *bucket, void *ctxt) |
24268cd0 PR |
846 | { |
847 | struct vty *vty; | |
b2998086 PR |
848 | json_object *json_mac_hdr = NULL, *json_mac = NULL; |
849 | zebra_mac_t *mac; | |
24268cd0 | 850 | char buf1[ETHER_ADDR_STRLEN]; |
9bcef951 | 851 | char addr_buf[PREFIX_STRLEN]; |
b2998086 | 852 | struct mac_walk_ctx *wctx = ctxt; |
24268cd0 PR |
853 | char flags_buf[6]; |
854 | ||
855 | vty = wctx->vty; | |
b2998086 PR |
856 | json_mac_hdr = wctx->json; |
857 | mac = (zebra_mac_t *)bucket->data; | |
858 | ||
859 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
860 | ||
861 | if (json_mac_hdr) | |
862 | json_mac = json_object_new_object(); | |
24268cd0 | 863 | |
b2998086 PR |
864 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
865 | struct interface *ifp; | |
866 | vlanid_t vid; | |
24268cd0 | 867 | |
b2998086 | 868 | if (wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) |
24268cd0 PR |
869 | return; |
870 | ||
b2998086 PR |
871 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
872 | if (json_mac_hdr == NULL) { | |
873 | vty_out(vty, "%-17s %-6s %-5s %-30s", buf1, "local", | |
874 | zebra_evpn_print_mac_flags(mac, flags_buf, | |
875 | sizeof(flags_buf)), | |
876 | ifp ? ifp->name : "-"); | |
877 | } else { | |
878 | json_object_string_add(json_mac, "type", "local"); | |
879 | if (ifp) | |
880 | json_object_string_add(json_mac, "intf", | |
881 | ifp->name); | |
882 | } | |
883 | if (vid) { | |
884 | if (json_mac_hdr == NULL) | |
885 | vty_out(vty, " %-5u", vid); | |
886 | else | |
887 | json_object_int_add(json_mac, "vlan", vid); | |
888 | } else /* No vid? fill out the space */ | |
889 | if (json_mac_hdr == NULL) | |
890 | vty_out(vty, " %-5s", ""); | |
891 | if (json_mac_hdr == NULL) { | |
892 | vty_out(vty, " %u/%u", mac->loc_seq, mac->rem_seq); | |
893 | vty_out(vty, "\n"); | |
24268cd0 | 894 | } else { |
b2998086 PR |
895 | json_object_int_add(json_mac, "localSequence", |
896 | mac->loc_seq); | |
897 | json_object_int_add(json_mac, "remoteSequence", | |
898 | mac->rem_seq); | |
899 | json_object_int_add(json_mac, "detectionCount", | |
900 | mac->dad_count); | |
901 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
902 | json_object_boolean_true_add(json_mac, | |
24268cd0 PR |
903 | "isDuplicate"); |
904 | else | |
b2998086 | 905 | json_object_boolean_false_add(json_mac, |
24268cd0 | 906 | "isDuplicate"); |
b2998086 | 907 | json_object_object_add(json_mac_hdr, buf1, json_mac); |
24268cd0 | 908 | } |
b2998086 | 909 | |
24268cd0 | 910 | wctx->count++; |
b2998086 PR |
911 | |
912 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
913 | ||
914 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
915 | && !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, | |
916 | &wctx->r_vtep_ip)) | |
24268cd0 PR |
917 | return; |
918 | ||
b2998086 PR |
919 | if (json_mac_hdr == NULL) { |
920 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
921 | && (wctx->count == 0)) { | |
922 | vty_out(vty, "\nVNI %u\n\n", wctx->zevpn->vni); | |
923 | vty_out(vty, "%-17s %-6s %-5s%-30s %-5s %s\n", | |
924 | "MAC", "Type", "Flags", | |
925 | "Intf/Remote ES/VTEP", "VLAN", | |
926 | "Seq #'s"); | |
24268cd0 | 927 | } |
9bcef951 MS |
928 | if (mac->es == NULL) |
929 | inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip, | |
930 | addr_buf, sizeof(addr_buf)); | |
931 | ||
b2998086 PR |
932 | vty_out(vty, "%-17s %-6s %-5s %-30s %-5s %u/%u\n", buf1, |
933 | "remote", | |
934 | zebra_evpn_print_mac_flags(mac, flags_buf, | |
9bcef951 MS |
935 | sizeof(flags_buf)), |
936 | mac->es ? mac->es->esi_str : addr_buf, | |
b2998086 PR |
937 | "", mac->loc_seq, mac->rem_seq); |
938 | } else { | |
939 | json_object_string_add(json_mac, "type", "remote"); | |
940 | json_object_string_add( | |
941 | json_mac, "remoteVtep", | |
9bcef951 MS |
942 | inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip, |
943 | addr_buf, sizeof(addr_buf))); | |
b2998086 PR |
944 | json_object_object_add(json_mac_hdr, buf1, json_mac); |
945 | json_object_int_add(json_mac, "localSequence", | |
946 | mac->loc_seq); | |
947 | json_object_int_add(json_mac, "remoteSequence", | |
948 | mac->rem_seq); | |
949 | json_object_int_add(json_mac, "detectionCount", | |
950 | mac->dad_count); | |
951 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
952 | json_object_boolean_true_add(json_mac, | |
953 | "isDuplicate"); | |
954 | else | |
955 | json_object_boolean_false_add(json_mac, | |
956 | "isDuplicate"); | |
957 | } | |
24268cd0 | 958 | |
b2998086 PR |
959 | wctx->count++; |
960 | } | |
24268cd0 PR |
961 | } |
962 | ||
963 | /* | |
b2998086 | 964 | * Print MAC hash entry in detail - called for display of all MACs. |
24268cd0 | 965 | */ |
b2998086 | 966 | void zebra_evpn_print_mac_hash_detail(struct hash_bucket *bucket, void *ctxt) |
24268cd0 | 967 | { |
b2998086 PR |
968 | struct vty *vty; |
969 | json_object *json_mac_hdr = NULL; | |
970 | zebra_mac_t *mac; | |
971 | struct mac_walk_ctx *wctx = ctxt; | |
972 | char buf1[ETHER_ADDR_STRLEN]; | |
24268cd0 | 973 | |
b2998086 PR |
974 | vty = wctx->vty; |
975 | json_mac_hdr = wctx->json; | |
976 | mac = (zebra_mac_t *)bucket->data; | |
977 | if (!mac) | |
24268cd0 PR |
978 | return; |
979 | ||
b2998086 PR |
980 | wctx->count++; |
981 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
24268cd0 | 982 | |
b2998086 | 983 | zebra_evpn_print_mac(mac, vty, json_mac_hdr); |
24268cd0 PR |
984 | } |
985 | ||
986 | /* | |
b2998086 | 987 | * Inform BGP about local MACIP. |
24268cd0 | 988 | */ |
7f7e49d1 MS |
989 | int zebra_evpn_macip_send_msg_to_client(vni_t vni, |
990 | const struct ethaddr *macaddr, | |
1a3bd37f | 991 | const struct ipaddr *ip, uint8_t flags, |
b2998086 PR |
992 | uint32_t seq, int state, |
993 | struct zebra_evpn_es *es, uint16_t cmd) | |
24268cd0 | 994 | { |
b2998086 PR |
995 | int ipa_len; |
996 | struct zserv *client = NULL; | |
997 | struct stream *s = NULL; | |
998 | esi_t *esi = es ? &es->esi : zero_esi; | |
24268cd0 | 999 | |
b2998086 PR |
1000 | client = zserv_find_client(ZEBRA_ROUTE_BGP, 0); |
1001 | /* BGP may not be running. */ | |
1002 | if (!client) | |
1003 | return 0; | |
24268cd0 | 1004 | |
b2998086 | 1005 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); |
24268cd0 | 1006 | |
b2998086 PR |
1007 | zclient_create_header(s, cmd, zebra_vrf_get_evpn_id()); |
1008 | stream_putl(s, vni); | |
1009 | stream_put(s, macaddr->octet, ETH_ALEN); | |
1010 | if (ip) { | |
1011 | ipa_len = 0; | |
1012 | if (IS_IPADDR_V4(ip)) | |
1013 | ipa_len = IPV4_MAX_BYTELEN; | |
1014 | else if (IS_IPADDR_V6(ip)) | |
1015 | ipa_len = IPV6_MAX_BYTELEN; | |
24268cd0 | 1016 | |
b2998086 PR |
1017 | stream_putl(s, ipa_len); /* IP address length */ |
1018 | if (ipa_len) | |
1019 | stream_put(s, &ip->ip.addr, ipa_len); /* IP address */ | |
1020 | } else | |
1021 | stream_putl(s, 0); /* Just MAC. */ | |
24268cd0 | 1022 | |
b2998086 PR |
1023 | if (cmd == ZEBRA_MACIP_ADD) { |
1024 | stream_putc(s, flags); /* sticky mac/gateway mac */ | |
1025 | stream_putl(s, seq); /* sequence number */ | |
1026 | stream_put(s, esi, sizeof(esi_t)); | |
24268cd0 | 1027 | } else { |
b2998086 PR |
1028 | stream_putl(s, state); /* state - active/inactive */ |
1029 | } | |
24268cd0 | 1030 | |
24268cd0 | 1031 | |
b2998086 PR |
1032 | /* Write packet size. */ |
1033 | stream_putw_at(s, 0, stream_get_endp(s)); | |
24268cd0 | 1034 | |
bf902d4c DS |
1035 | if (IS_ZEBRA_DEBUG_VXLAN) { |
1036 | char flag_buf[MACIP_BUF_SIZE]; | |
1037 | ||
b2998086 | 1038 | zlog_debug( |
ef7b8be4 | 1039 | "Send MACIP %s f %s MAC %pEA IP %pIA seq %u L2-VNI %u ESI %s to %s", |
bf902d4c DS |
1040 | (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1041 | zclient_evpn_dump_macip_flags(flags, flag_buf, | |
1042 | sizeof(flag_buf)), | |
ef7b8be4 | 1043 | macaddr, ip, seq, vni, |
b2998086 PR |
1044 | es ? es->esi_str : "-", |
1045 | zebra_route_string(client->proto)); | |
bf902d4c | 1046 | } |
24268cd0 | 1047 | |
b2998086 PR |
1048 | if (cmd == ZEBRA_MACIP_ADD) |
1049 | client->macipadd_cnt++; | |
1050 | else | |
1051 | client->macipdel_cnt++; | |
24268cd0 | 1052 | |
b2998086 PR |
1053 | return zserv_send_message(client, s); |
1054 | } | |
24268cd0 | 1055 | |
b2998086 PR |
1056 | static unsigned int mac_hash_keymake(const void *p) |
1057 | { | |
1058 | const zebra_mac_t *pmac = p; | |
1059 | const void *pnt = (void *)pmac->macaddr.octet; | |
24268cd0 | 1060 | |
b2998086 | 1061 | return jhash(pnt, ETH_ALEN, 0xa5a5a55a); |
24268cd0 PR |
1062 | } |
1063 | ||
1064 | /* | |
b2998086 | 1065 | * Compare two MAC addresses. |
24268cd0 | 1066 | */ |
b2998086 | 1067 | static bool mac_cmp(const void *p1, const void *p2) |
24268cd0 | 1068 | { |
b2998086 PR |
1069 | const zebra_mac_t *pmac1 = p1; |
1070 | const zebra_mac_t *pmac2 = p2; | |
24268cd0 | 1071 | |
b2998086 PR |
1072 | if (pmac1 == NULL && pmac2 == NULL) |
1073 | return true; | |
24268cd0 | 1074 | |
b2998086 PR |
1075 | if (pmac1 == NULL || pmac2 == NULL) |
1076 | return false; | |
24268cd0 | 1077 | |
b2998086 PR |
1078 | return (memcmp(pmac1->macaddr.octet, pmac2->macaddr.octet, ETH_ALEN) |
1079 | == 0); | |
1080 | } | |
24268cd0 | 1081 | |
b2998086 PR |
1082 | /* |
1083 | * Callback to allocate MAC hash entry. | |
1084 | */ | |
1085 | static void *zebra_evpn_mac_alloc(void *p) | |
1086 | { | |
1087 | const zebra_mac_t *tmp_mac = p; | |
1088 | zebra_mac_t *mac; | |
24268cd0 | 1089 | |
b2998086 PR |
1090 | mac = XCALLOC(MTYPE_MAC, sizeof(zebra_mac_t)); |
1091 | *mac = *tmp_mac; | |
24268cd0 | 1092 | |
b2998086 PR |
1093 | return ((void *)mac); |
1094 | } | |
24268cd0 | 1095 | |
b2998086 PR |
1096 | /* |
1097 | * Add MAC entry. | |
1098 | */ | |
f6371c34 | 1099 | zebra_mac_t *zebra_evpn_mac_add(struct zebra_evpn *zevpn, |
1a3bd37f | 1100 | const struct ethaddr *macaddr) |
b2998086 PR |
1101 | { |
1102 | zebra_mac_t tmp_mac; | |
1103 | zebra_mac_t *mac = NULL; | |
24268cd0 | 1104 | |
b2998086 PR |
1105 | memset(&tmp_mac, 0, sizeof(zebra_mac_t)); |
1106 | memcpy(&tmp_mac.macaddr, macaddr, ETH_ALEN); | |
1107 | mac = hash_get(zevpn->mac_table, &tmp_mac, zebra_evpn_mac_alloc); | |
1108 | assert(mac); | |
24268cd0 | 1109 | |
b2998086 PR |
1110 | mac->zevpn = zevpn; |
1111 | mac->dad_mac_auto_recovery_timer = NULL; | |
24268cd0 | 1112 | |
b2998086 PR |
1113 | mac->neigh_list = list_new(); |
1114 | mac->neigh_list->cmp = neigh_list_cmp; | |
24268cd0 | 1115 | |
f1dbb1c7 | 1116 | mac->uptime = monotime(NULL); |
b2998086 | 1117 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
b16e8004 | 1118 | char mac_buf[MAC_BUF_SIZE]; |
24268cd0 | 1119 | |
ef7b8be4 DL |
1120 | zlog_debug("%s: MAC %pEA flags %s", __func__, |
1121 | &mac->macaddr, | |
b16e8004 DS |
1122 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1123 | sizeof(mac_buf))); | |
b2998086 PR |
1124 | } |
1125 | return mac; | |
24268cd0 PR |
1126 | } |
1127 | ||
1128 | /* | |
b2998086 | 1129 | * Delete MAC entry. |
24268cd0 | 1130 | */ |
f6371c34 | 1131 | int zebra_evpn_mac_del(struct zebra_evpn *zevpn, zebra_mac_t *mac) |
24268cd0 | 1132 | { |
b2998086 | 1133 | zebra_mac_t *tmp_mac; |
24268cd0 | 1134 | |
b2998086 | 1135 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
b16e8004 | 1136 | char mac_buf[MAC_BUF_SIZE]; |
b2998086 | 1137 | |
ef7b8be4 DL |
1138 | zlog_debug("%s: MAC %pEA flags %s", __func__, |
1139 | &mac->macaddr, | |
b16e8004 DS |
1140 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1141 | sizeof(mac_buf))); | |
24268cd0 PR |
1142 | } |
1143 | ||
46bf266c AK |
1144 | /* If the MAC is freed before the neigh we will end up |
1145 | * with a stale pointer against the neigh | |
1146 | */ | |
1147 | if (!list_isempty(mac->neigh_list)) | |
1148 | zlog_warn("%s: MAC %pEA flags 0x%x neigh list not empty %d", | |
1149 | __func__, &mac->macaddr, mac->flags, | |
1150 | listcount(mac->neigh_list)); | |
1151 | ||
b2998086 PR |
1152 | /* force de-ref any ES entry linked to the MAC */ |
1153 | zebra_evpn_es_mac_deref_entry(mac); | |
24268cd0 | 1154 | |
8b07f173 AK |
1155 | /* remove links to the destination access port */ |
1156 | zebra_evpn_mac_clear_fwd_info(mac); | |
1157 | ||
b2998086 PR |
1158 | /* Cancel proxy hold timer */ |
1159 | zebra_evpn_mac_stop_hold_timer(mac); | |
24268cd0 | 1160 | |
b2998086 PR |
1161 | /* Cancel auto recovery */ |
1162 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
24268cd0 | 1163 | |
b2998086 | 1164 | list_delete(&mac->neigh_list); |
24268cd0 | 1165 | |
b2998086 PR |
1166 | /* Free the VNI hash entry and allocated memory. */ |
1167 | tmp_mac = hash_release(zevpn->mac_table, mac); | |
1168 | XFREE(MTYPE_MAC, tmp_mac); | |
24268cd0 | 1169 | |
b2998086 PR |
1170 | return 0; |
1171 | } | |
24268cd0 | 1172 | |
b2998086 PR |
1173 | static bool zebra_evpn_check_mac_del_from_db(struct mac_walk_ctx *wctx, |
1174 | zebra_mac_t *mac) | |
1175 | { | |
1176 | if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_LOCAL)) | |
1177 | return true; | |
1178 | else if ((wctx->flags & DEL_REMOTE_MAC) | |
1179 | && (mac->flags & ZEBRA_MAC_REMOTE)) | |
1180 | return true; | |
1181 | else if ((wctx->flags & DEL_REMOTE_MAC_FROM_VTEP) | |
1182 | && (mac->flags & ZEBRA_MAC_REMOTE) | |
1183 | && IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &wctx->r_vtep_ip)) | |
1184 | return true; | |
1185 | else if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_AUTO) | |
1186 | && !listcount(mac->neigh_list)) { | |
1187 | if (IS_ZEBRA_DEBUG_VXLAN) { | |
b16e8004 | 1188 | char mac_buf[MAC_BUF_SIZE]; |
24268cd0 | 1189 | |
24268cd0 | 1190 | zlog_debug( |
ef7b8be4 DL |
1191 | "%s: Del MAC %pEA flags %s", __func__, |
1192 | &mac->macaddr, | |
b16e8004 DS |
1193 | zebra_evpn_zebra_mac_flag_dump( |
1194 | mac, mac_buf, sizeof(mac_buf))); | |
b2998086 PR |
1195 | } |
1196 | wctx->uninstall = 0; | |
24268cd0 | 1197 | |
b2998086 PR |
1198 | return true; |
1199 | } | |
24268cd0 | 1200 | |
b2998086 PR |
1201 | return false; |
1202 | } | |
24268cd0 | 1203 | |
b2998086 PR |
1204 | /* |
1205 | * Free MAC hash entry (callback) | |
1206 | */ | |
1207 | static void zebra_evpn_mac_del_hash_entry(struct hash_bucket *bucket, void *arg) | |
1208 | { | |
1209 | struct mac_walk_ctx *wctx = arg; | |
1210 | zebra_mac_t *mac = bucket->data; | |
24268cd0 | 1211 | |
b2998086 PR |
1212 | if (zebra_evpn_check_mac_del_from_db(wctx, mac)) { |
1213 | if (wctx->upd_client && (mac->flags & ZEBRA_MAC_LOCAL)) { | |
1214 | zebra_evpn_mac_send_del_to_client(wctx->zevpn->vni, | |
1215 | &mac->macaddr, | |
1216 | mac->flags, false); | |
1217 | } | |
1218 | if (wctx->uninstall) { | |
1219 | if (zebra_evpn_mac_is_static(mac)) | |
1220 | zebra_evpn_sync_mac_dp_install( | |
1221 | mac, false /* set_inactive */, | |
1222 | true /* force_clear_static */, | |
1223 | __func__); | |
24268cd0 | 1224 | |
b2998086 | 1225 | if (mac->flags & ZEBRA_MAC_REMOTE) |
f3722826 AK |
1226 | zebra_evpn_rem_mac_uninstall(wctx->zevpn, mac, |
1227 | false /*force*/); | |
24268cd0 | 1228 | } |
b2998086 PR |
1229 | |
1230 | zebra_evpn_mac_del(wctx->zevpn, mac); | |
24268cd0 PR |
1231 | } |
1232 | ||
24268cd0 PR |
1233 | return; |
1234 | } | |
1235 | ||
24268cd0 | 1236 | /* |
b2998086 | 1237 | * Delete all MAC entries for this EVPN. |
24268cd0 | 1238 | */ |
f6371c34 DS |
1239 | void zebra_evpn_mac_del_all(struct zebra_evpn *zevpn, int uninstall, |
1240 | int upd_client, uint32_t flags) | |
24268cd0 | 1241 | { |
b2998086 | 1242 | struct mac_walk_ctx wctx; |
24268cd0 | 1243 | |
b2998086 | 1244 | if (!zevpn->mac_table) |
24268cd0 PR |
1245 | return; |
1246 | ||
b2998086 PR |
1247 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); |
1248 | wctx.zevpn = zevpn; | |
1249 | wctx.uninstall = uninstall; | |
1250 | wctx.upd_client = upd_client; | |
1251 | wctx.flags = flags; | |
24268cd0 | 1252 | |
b2998086 PR |
1253 | hash_iterate(zevpn->mac_table, zebra_evpn_mac_del_hash_entry, &wctx); |
1254 | } | |
24268cd0 | 1255 | |
b2998086 PR |
1256 | /* |
1257 | * Look up MAC hash entry. | |
1258 | */ | |
f6371c34 | 1259 | zebra_mac_t *zebra_evpn_mac_lookup(struct zebra_evpn *zevpn, |
1a3bd37f | 1260 | const struct ethaddr *mac) |
b2998086 PR |
1261 | { |
1262 | zebra_mac_t tmp; | |
1263 | zebra_mac_t *pmac; | |
24268cd0 | 1264 | |
b2998086 PR |
1265 | memset(&tmp, 0, sizeof(tmp)); |
1266 | memcpy(&tmp.macaddr, mac, ETH_ALEN); | |
1267 | pmac = hash_lookup(zevpn->mac_table, &tmp); | |
24268cd0 | 1268 | |
b2998086 PR |
1269 | return pmac; |
1270 | } | |
24268cd0 | 1271 | |
b2998086 PR |
1272 | /* |
1273 | * Inform BGP about local MAC addition. | |
1274 | */ | |
1a3bd37f | 1275 | int zebra_evpn_mac_send_add_to_client(vni_t vni, const struct ethaddr *macaddr, |
b2998086 PR |
1276 | uint32_t mac_flags, uint32_t seq, |
1277 | struct zebra_evpn_es *es) | |
1278 | { | |
1279 | uint8_t flags = 0; | |
24268cd0 | 1280 | |
b2998086 PR |
1281 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_LOCAL_INACTIVE)) { |
1282 | /* host reachability has not been verified locally */ | |
24268cd0 | 1283 | |
b2998086 PR |
1284 | /* if no ES peer is claiming reachability we can't advertise the |
1285 | * entry | |
1286 | */ | |
1287 | if (!CHECK_FLAG(mac_flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1288 | return 0; | |
24268cd0 | 1289 | |
b2998086 PR |
1290 | /* ES peers are claiming reachability; we will |
1291 | * advertise the entry but with a proxy flag | |
24268cd0 | 1292 | */ |
b2998086 PR |
1293 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT); |
1294 | } | |
24268cd0 | 1295 | |
b2998086 PR |
1296 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_STICKY)) |
1297 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
1298 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_DEF_GW)) | |
1299 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
24268cd0 | 1300 | |
b2998086 PR |
1301 | return zebra_evpn_macip_send_msg_to_client(vni, macaddr, NULL, flags, |
1302 | seq, ZEBRA_NEIGH_ACTIVE, es, | |
1303 | ZEBRA_MACIP_ADD); | |
1304 | } | |
24268cd0 | 1305 | |
b2998086 PR |
1306 | /* |
1307 | * Inform BGP about local MAC deletion. | |
1308 | */ | |
1a3bd37f | 1309 | int zebra_evpn_mac_send_del_to_client(vni_t vni, const struct ethaddr *macaddr, |
b2998086 PR |
1310 | uint32_t flags, bool force) |
1311 | { | |
1312 | if (!force) { | |
1313 | if (CHECK_FLAG(flags, ZEBRA_MAC_LOCAL_INACTIVE) | |
1314 | && !CHECK_FLAG(flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1315 | /* the host was not advertised - nothing to delete */ | |
1316 | return 0; | |
24268cd0 PR |
1317 | } |
1318 | ||
b2998086 PR |
1319 | return zebra_evpn_macip_send_msg_to_client( |
1320 | vni, macaddr, NULL, 0 /* flags */, 0 /* seq */, | |
1321 | ZEBRA_NEIGH_ACTIVE, NULL, ZEBRA_MACIP_DEL); | |
24268cd0 PR |
1322 | } |
1323 | ||
1324 | /* | |
b2998086 | 1325 | * wrapper to create a MAC hash table |
24268cd0 | 1326 | */ |
b2998086 | 1327 | struct hash *zebra_mac_db_create(const char *desc) |
24268cd0 | 1328 | { |
da55bcbc | 1329 | return hash_create_size(8, mac_hash_keymake, mac_cmp, desc); |
24268cd0 PR |
1330 | } |
1331 | ||
b2998086 | 1332 | /* program sync mac flags in the dataplane */ |
15400f95 AK |
1333 | int zebra_evpn_sync_mac_dp_install(zebra_mac_t *mac, bool set_inactive, |
1334 | bool force_clear_static, const char *caller) | |
24268cd0 | 1335 | { |
b2998086 PR |
1336 | struct interface *ifp; |
1337 | bool sticky; | |
1338 | bool set_static; | |
f6371c34 | 1339 | struct zebra_evpn *zevpn = mac->zevpn; |
b2998086 PR |
1340 | vlanid_t vid; |
1341 | struct zebra_if *zif; | |
1342 | struct interface *br_ifp; | |
24268cd0 | 1343 | |
b2998086 PR |
1344 | /* get the access vlan from the vxlan_device */ |
1345 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); | |
24268cd0 | 1346 | |
b2998086 | 1347 | if (!ifp) { |
b16e8004 DS |
1348 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1349 | char mac_buf[MAC_BUF_SIZE]; | |
1350 | ||
b2998086 | 1351 | zlog_debug( |
b16e8004 | 1352 | "%s: dp-install sync-mac vni %u mac %pEA es %s %s%sskipped, no access-port", |
15400f95 | 1353 | caller, zevpn->vni, &mac->macaddr, |
b16e8004 DS |
1354 | mac->es ? mac->es->esi_str : "-", |
1355 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1356 | sizeof(mac_buf)), | |
b2998086 | 1357 | set_inactive ? "inactive " : ""); |
b16e8004 | 1358 | } |
15400f95 | 1359 | return -1; |
b2998086 | 1360 | } |
24268cd0 | 1361 | |
b2998086 PR |
1362 | zif = ifp->info; |
1363 | br_ifp = zif->brslave_info.br_if; | |
1364 | if (!br_ifp) { | |
b16e8004 DS |
1365 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1366 | char mac_buf[MAC_BUF_SIZE]; | |
1367 | ||
b2998086 | 1368 | zlog_debug( |
b16e8004 | 1369 | "%s: dp-install sync-mac vni %u mac %pEA es %s %s%sskipped, no br", |
15400f95 | 1370 | caller, zevpn->vni, &mac->macaddr, |
b16e8004 DS |
1371 | mac->es ? mac->es->esi_str : "-", |
1372 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1373 | sizeof(mac_buf)), | |
b2998086 | 1374 | set_inactive ? "inactive " : ""); |
b16e8004 | 1375 | } |
15400f95 | 1376 | return -1; |
b2998086 | 1377 | } |
24268cd0 | 1378 | |
b2998086 PR |
1379 | sticky = !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY); |
1380 | if (force_clear_static) | |
1381 | set_static = false; | |
1382 | else | |
1383 | set_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1384 | |
15400f95 AK |
1385 | /* We can install a local mac that has been synced from the peer |
1386 | * over the VxLAN-overlay/network-port if fast failover is not | |
1387 | * supported and if the local ES is oper-down. | |
1388 | */ | |
1389 | if (mac->es && zebra_evpn_es_local_mac_via_network_port(mac->es)) { | |
b16e8004 DS |
1390 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1391 | char mac_buf[MAC_BUF_SIZE]; | |
1392 | ||
15400f95 | 1393 | zlog_debug( |
b16e8004 | 1394 | "dp-%s sync-nw-mac vni %u mac %pEA es %s %s%s", |
15400f95 AK |
1395 | set_static ? "install" : "uninstall", |
1396 | zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1397 | mac->es ? mac->es->esi_str : "-", |
1398 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1399 | sizeof(mac_buf)), | |
15400f95 | 1400 | set_inactive ? "inactive " : ""); |
b16e8004 | 1401 | } |
15400f95 AK |
1402 | if (set_static) |
1403 | /* XXX - old_static needs to be computed more | |
1404 | * accurately | |
1405 | */ | |
1406 | zebra_evpn_rem_mac_install(zevpn, mac, | |
1407 | true /* old_static */); | |
1408 | else | |
1409 | zebra_evpn_rem_mac_uninstall(zevpn, mac, | |
1410 | false /* force */); | |
1411 | ||
1412 | return 0; | |
1413 | } | |
1414 | ||
b16e8004 DS |
1415 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1416 | char mac_buf[MAC_BUF_SIZE]; | |
1417 | ||
1418 | zlog_debug("dp-install sync-mac vni %u mac %pEA es %s %s%s%s", | |
1419 | zevpn->vni, &mac->macaddr, | |
1420 | mac->es ? mac->es->esi_str : "-", | |
1421 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1422 | sizeof(mac_buf)), | |
1423 | set_static ? "static " : "", | |
1424 | set_inactive ? "inactive " : ""); | |
1425 | } | |
24268cd0 | 1426 | |
b2998086 PR |
1427 | dplane_local_mac_add(ifp, br_ifp, vid, &mac->macaddr, sticky, |
1428 | set_static, set_inactive); | |
15400f95 | 1429 | return 0; |
24268cd0 PR |
1430 | } |
1431 | ||
b2998086 PR |
1432 | void zebra_evpn_mac_send_add_del_to_client(zebra_mac_t *mac, bool old_bgp_ready, |
1433 | bool new_bgp_ready) | |
24268cd0 | 1434 | { |
b2998086 PR |
1435 | if (new_bgp_ready) |
1436 | zebra_evpn_mac_send_add_to_client(mac->zevpn->vni, | |
1437 | &mac->macaddr, mac->flags, | |
1438 | mac->loc_seq, mac->es); | |
1439 | else if (old_bgp_ready) | |
1440 | zebra_evpn_mac_send_del_to_client(mac->zevpn->vni, | |
1441 | &mac->macaddr, mac->flags, | |
1442 | true /* force */); | |
24268cd0 PR |
1443 | } |
1444 | ||
b2998086 PR |
1445 | /* MAC hold timer is used to age out peer-active flag. |
1446 | * | |
1447 | * During this wait time we expect the dataplane component or an | |
1448 | * external neighmgr daemon to probe existing hosts to independently | |
1449 | * establish their presence on the ES. | |
1450 | */ | |
1451 | static int zebra_evpn_mac_hold_exp_cb(struct thread *t) | |
24268cd0 | 1452 | { |
b2998086 PR |
1453 | zebra_mac_t *mac; |
1454 | bool old_bgp_ready; | |
1455 | bool new_bgp_ready; | |
1456 | bool old_static; | |
1457 | bool new_static; | |
24268cd0 PR |
1458 | |
1459 | mac = THREAD_ARG(t); | |
b2998086 PR |
1460 | /* the purpose of the hold timer is to age out the peer-active |
1461 | * flag | |
1462 | */ | |
1463 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
24268cd0 PR |
1464 | return 0; |
1465 | ||
b2998086 PR |
1466 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
1467 | old_static = zebra_evpn_mac_is_static(mac); | |
1468 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1469 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1470 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1471 | |
b16e8004 DS |
1472 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1473 | char mac_buf[MAC_BUF_SIZE]; | |
1474 | ||
24268cd0 | 1475 | zlog_debug( |
ef7b8be4 DL |
1476 | "sync-mac vni %u mac %pEA es %s %shold expired", |
1477 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1478 | mac->es ? mac->es->esi_str : "-", |
1479 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1480 | sizeof(mac_buf))); | |
1481 | } | |
24268cd0 | 1482 | |
b2998086 PR |
1483 | /* re-program the local mac in the dataplane if the mac is no |
1484 | * longer static | |
1485 | */ | |
1486 | if (old_static != new_static) | |
1487 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1488 | false /* force_clear_static */, | |
1489 | __func__); | |
24268cd0 | 1490 | |
b2998086 PR |
1491 | /* inform bgp if needed */ |
1492 | if (old_bgp_ready != new_bgp_ready) | |
1493 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1494 | new_bgp_ready); | |
24268cd0 PR |
1495 | |
1496 | return 0; | |
1497 | } | |
1498 | ||
b2998086 | 1499 | static inline void zebra_evpn_mac_start_hold_timer(zebra_mac_t *mac) |
24268cd0 | 1500 | { |
b2998086 PR |
1501 | if (mac->hold_timer) |
1502 | return; | |
24268cd0 | 1503 | |
b16e8004 DS |
1504 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1505 | char mac_buf[MAC_BUF_SIZE]; | |
1506 | ||
24268cd0 | 1507 | zlog_debug( |
ef7b8be4 DL |
1508 | "sync-mac vni %u mac %pEA es %s %shold started", |
1509 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1510 | mac->es ? mac->es->esi_str : "-", |
1511 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1512 | sizeof(mac_buf))); | |
1513 | } | |
b2998086 PR |
1514 | thread_add_timer(zrouter.master, zebra_evpn_mac_hold_exp_cb, mac, |
1515 | zmh_info->mac_hold_time, &mac->hold_timer); | |
24268cd0 PR |
1516 | } |
1517 | ||
b2998086 | 1518 | void zebra_evpn_mac_stop_hold_timer(zebra_mac_t *mac) |
24268cd0 | 1519 | { |
b2998086 PR |
1520 | if (!mac->hold_timer) |
1521 | return; | |
24268cd0 | 1522 | |
b16e8004 DS |
1523 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1524 | char mac_buf[MAC_BUF_SIZE]; | |
1525 | ||
b2998086 | 1526 | zlog_debug( |
ef7b8be4 DL |
1527 | "sync-mac vni %u mac %pEA es %s %shold stopped", |
1528 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1529 | mac->es ? mac->es->esi_str : "-", |
1530 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1531 | sizeof(mac_buf))); | |
1532 | } | |
1533 | ||
b2998086 | 1534 | THREAD_OFF(mac->hold_timer); |
24268cd0 PR |
1535 | } |
1536 | ||
b2998086 | 1537 | void zebra_evpn_sync_mac_del(zebra_mac_t *mac) |
24268cd0 | 1538 | { |
b2998086 PR |
1539 | bool old_static; |
1540 | bool new_static; | |
24268cd0 | 1541 | |
b16e8004 DS |
1542 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1543 | char mac_buf[MAC_BUF_SIZE]; | |
1544 | ||
b2998086 | 1545 | zlog_debug( |
ef7b8be4 DL |
1546 | "sync-mac del vni %u mac %pEA es %s seq %d f %s", |
1547 | mac->zevpn->vni, &mac->macaddr, | |
b2998086 | 1548 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
1549 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1550 | sizeof(mac_buf))); | |
1551 | } | |
1552 | ||
b2998086 PR |
1553 | old_static = zebra_evpn_mac_is_static(mac); |
1554 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1555 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1556 | zebra_evpn_mac_start_hold_timer(mac); | |
1557 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1558 | |
b2998086 PR |
1559 | if (old_static != new_static) |
1560 | /* program the local mac in the kernel */ | |
1561 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1562 | false /* force_clear_static */, | |
1563 | __func__); | |
24268cd0 PR |
1564 | } |
1565 | ||
f6371c34 | 1566 | static inline bool zebra_evpn_mac_is_bgp_seq_ok(struct zebra_evpn *zevpn, |
b2998086 PR |
1567 | zebra_mac_t *mac, uint32_t seq, |
1568 | uint16_t ipa_len, | |
1a3bd37f | 1569 | const struct ipaddr *ipaddr, |
16de1338 | 1570 | bool sync) |
24268cd0 | 1571 | { |
b2998086 PR |
1572 | char ipbuf[INET6_ADDRSTRLEN]; |
1573 | uint32_t tmp_seq; | |
16de1338 | 1574 | const char *n_type; |
24268cd0 | 1575 | |
16de1338 | 1576 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
b2998086 | 1577 | tmp_seq = mac->loc_seq; |
16de1338 AK |
1578 | n_type = "local"; |
1579 | } else { | |
b2998086 | 1580 | tmp_seq = mac->rem_seq; |
16de1338 AK |
1581 | n_type = "remote"; |
1582 | } | |
24268cd0 | 1583 | |
b2998086 PR |
1584 | if (seq < tmp_seq) { |
1585 | /* if the mac was never advertised to bgp we must accept | |
1586 | * whatever sequence number bgp sends | |
1587 | * XXX - check with Vivek | |
1588 | */ | |
1589 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) | |
1590 | && !zebra_evpn_mac_is_ready_for_bgp(mac->flags)) { | |
b16e8004 DS |
1591 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC |
1592 | || IS_ZEBRA_DEBUG_VXLAN) { | |
1593 | char mac_buf[MAC_BUF_SIZE]; | |
1594 | ||
b2998086 | 1595 | zlog_debug( |
ef7b8be4 | 1596 | "%s-macip accept vni %u %s-mac %pEA%s%s lower seq %u f %s", |
16de1338 AK |
1597 | sync ? "sync" : "rem", zevpn->vni, |
1598 | n_type, | |
ef7b8be4 | 1599 | &mac->macaddr, |
b2998086 PR |
1600 | ipa_len ? " IP " : "", |
1601 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1602 | sizeof(ipbuf)) | |
1603 | : "", | |
b16e8004 DS |
1604 | tmp_seq, |
1605 | zebra_evpn_zebra_mac_flag_dump( | |
1606 | mac, mac_buf, sizeof(mac_buf))); | |
1607 | } | |
1608 | ||
b2998086 PR |
1609 | return true; |
1610 | } | |
24268cd0 | 1611 | |
b16e8004 DS |
1612 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || IS_ZEBRA_DEBUG_VXLAN) { |
1613 | char mac_buf[MAC_BUF_SIZE]; | |
1614 | ||
b2998086 | 1615 | zlog_debug( |
ef7b8be4 | 1616 | "%s-macip ignore vni %u %s-mac %pEA%s%s as existing has higher seq %u f %s", |
16de1338 | 1617 | sync ? "sync" : "rem", zevpn->vni, n_type, |
ef7b8be4 | 1618 | &mac->macaddr, |
b2998086 PR |
1619 | ipa_len ? " IP " : "", |
1620 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1621 | sizeof(ipbuf)) | |
1622 | : "", | |
b16e8004 DS |
1623 | tmp_seq, |
1624 | zebra_evpn_zebra_mac_flag_dump( | |
1625 | mac, mac_buf, sizeof(mac_buf))); | |
1626 | } | |
b2998086 | 1627 | return false; |
24268cd0 PR |
1628 | } |
1629 | ||
b2998086 | 1630 | return true; |
24268cd0 PR |
1631 | } |
1632 | ||
1a3bd37f | 1633 | zebra_mac_t *zebra_evpn_proc_sync_mac_update( |
f6371c34 DS |
1634 | struct zebra_evpn *zevpn, const struct ethaddr *macaddr, |
1635 | uint16_t ipa_len, const struct ipaddr *ipaddr, uint8_t flags, | |
1636 | uint32_t seq, const esi_t *esi, struct sync_mac_ip_ctx *ctx) | |
24268cd0 | 1637 | { |
b2998086 PR |
1638 | zebra_mac_t *mac; |
1639 | bool inform_bgp = false; | |
1640 | bool inform_dataplane = false; | |
1641 | bool seq_change = false; | |
1642 | bool es_change = false; | |
1643 | uint32_t tmp_seq; | |
b2998086 PR |
1644 | char ipbuf[INET6_ADDRSTRLEN]; |
1645 | bool old_local = false; | |
1646 | bool old_bgp_ready; | |
1647 | bool new_bgp_ready; | |
24268cd0 | 1648 | |
b2998086 PR |
1649 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); |
1650 | if (!mac) { | |
1651 | /* if it is a new local path we need to inform both | |
1652 | * the control protocol and the data-plane | |
1653 | */ | |
1654 | inform_bgp = true; | |
1655 | inform_dataplane = true; | |
1656 | ctx->mac_created = true; | |
1657 | ctx->mac_inactive = true; | |
24268cd0 | 1658 | |
b2998086 PR |
1659 | /* create the MAC and associate it with the dest ES */ |
1660 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1661 | zebra_evpn_es_mac_ref(mac, esi); | |
24268cd0 | 1662 | |
b2998086 PR |
1663 | /* local mac activated by an ES peer */ |
1664 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
1665 | /* if mac-only route setup peer flags */ | |
1666 | if (!ipa_len) { | |
1667 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) | |
1668 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1669 | else | |
1670 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1671 | } | |
1672 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
1673 | old_bgp_ready = false; | |
1674 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1675 | } else { | |
1676 | uint32_t old_flags; | |
1677 | uint32_t new_flags; | |
1678 | bool old_static; | |
1679 | bool new_static; | |
1680 | bool sticky; | |
1681 | bool remote_gw; | |
24268cd0 | 1682 | |
f1dbb1c7 DS |
1683 | mac->uptime = monotime(NULL); |
1684 | ||
b2998086 PR |
1685 | old_flags = mac->flags; |
1686 | sticky = !!CHECK_FLAG(old_flags, ZEBRA_MAC_STICKY); | |
1687 | remote_gw = !!CHECK_FLAG(old_flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
1688 | if (sticky || remote_gw) { | |
1689 | if (IS_ZEBRA_DEBUG_EVPN_MH_NEIGH) | |
1690 | zlog_debug( | |
ef7b8be4 DL |
1691 | "Ignore sync-macip vni %u mac %pEA%s%s%s%s", |
1692 | zevpn->vni, macaddr, | |
b2998086 PR |
1693 | ipa_len ? " IP " : "", |
1694 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1695 | sizeof(ipbuf)) | |
1696 | : "", | |
1697 | sticky ? " sticky" : "", | |
1698 | remote_gw ? " remote_gw" : ""); | |
1699 | ctx->ignore_macip = true; | |
1700 | return NULL; | |
1701 | } | |
1702 | if (!zebra_evpn_mac_is_bgp_seq_ok(zevpn, mac, seq, ipa_len, | |
16de1338 | 1703 | ipaddr, true)) { |
b2998086 PR |
1704 | ctx->ignore_macip = true; |
1705 | return NULL; | |
1706 | } | |
24268cd0 | 1707 | |
b2998086 PR |
1708 | old_local = !!CHECK_FLAG(old_flags, ZEBRA_MAC_LOCAL); |
1709 | old_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1710 | |
b2998086 PR |
1711 | /* re-build the mac flags */ |
1712 | new_flags = 0; | |
1713 | SET_FLAG(new_flags, ZEBRA_MAC_LOCAL); | |
1714 | /* retain old local activity flag */ | |
1715 | if (old_flags & ZEBRA_MAC_LOCAL) { | |
1716 | new_flags |= (old_flags & ZEBRA_MAC_LOCAL_INACTIVE); | |
1717 | } else { | |
1718 | new_flags |= ZEBRA_MAC_LOCAL_INACTIVE; | |
1719 | ctx->mac_inactive = true; | |
1720 | } | |
1721 | if (ipa_len) { | |
1722 | /* if mac-ip route do NOT update the peer flags | |
1723 | * i.e. retain only flags as is | |
1724 | */ | |
1725 | new_flags |= (old_flags & ZEBRA_MAC_ALL_PEER_FLAGS); | |
1726 | } else { | |
1727 | /* if mac-only route update peer flags */ | |
1728 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) { | |
1729 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1730 | /* if the mac was peer-active previously we | |
1731 | * need to keep the flag and start the | |
1732 | * holdtimer on it. the peer-active flag is | |
1733 | * cleared on holdtimer expiry. | |
1734 | */ | |
1735 | if (CHECK_FLAG(old_flags, | |
1736 | ZEBRA_MAC_ES_PEER_ACTIVE)) { | |
1737 | SET_FLAG(new_flags, | |
1738 | ZEBRA_MAC_ES_PEER_ACTIVE); | |
1739 | zebra_evpn_mac_start_hold_timer(mac); | |
1740 | } | |
1741 | } else { | |
1742 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1743 | /* stop hold timer if a peer has verified | |
1744 | * reachability | |
1745 | */ | |
1746 | zebra_evpn_mac_stop_hold_timer(mac); | |
1747 | } | |
1748 | } | |
1749 | mac->rem_seq = 0; | |
8b07f173 | 1750 | zebra_evpn_mac_clear_fwd_info(mac); |
b2998086 | 1751 | mac->flags = new_flags; |
24268cd0 | 1752 | |
b16e8004 DS |
1753 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC && (old_flags != new_flags)) { |
1754 | char mac_buf[MAC_BUF_SIZE], omac_buf[MAC_BUF_SIZE]; | |
1755 | struct zebra_mac_t_ omac; | |
1756 | ||
1757 | omac.flags = old_flags; | |
b2998086 | 1758 | zlog_debug( |
ef7b8be4 DL |
1759 | "sync-mac vni %u mac %pEA old_f %snew_f %s", |
1760 | zevpn->vni, macaddr, | |
b16e8004 DS |
1761 | zebra_evpn_zebra_mac_flag_dump( |
1762 | &omac, omac_buf, sizeof(omac_buf)), | |
1763 | zebra_evpn_zebra_mac_flag_dump( | |
1764 | mac, mac_buf, sizeof(mac_buf))); | |
1765 | } | |
24268cd0 | 1766 | |
b2998086 PR |
1767 | /* update es */ |
1768 | es_change = zebra_evpn_es_mac_ref(mac, esi); | |
1769 | /* if mac dest change - inform both sides */ | |
1770 | if (es_change) { | |
1771 | inform_bgp = true; | |
1772 | inform_dataplane = true; | |
1773 | ctx->mac_inactive = true; | |
1774 | } | |
8b07f173 | 1775 | |
b2998086 PR |
1776 | /* if peer-flag is being set notify dataplane that the |
1777 | * entry must not be expired because of local inactivity | |
1778 | */ | |
1779 | new_static = zebra_evpn_mac_is_static(mac); | |
1780 | if (old_static != new_static) | |
1781 | inform_dataplane = true; | |
24268cd0 | 1782 | |
b2998086 PR |
1783 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(old_flags); |
1784 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1785 | if (old_bgp_ready != new_bgp_ready) | |
1786 | inform_bgp = true; | |
1787 | } | |
24268cd0 | 1788 | |
24268cd0 | 1789 | |
b2998086 PR |
1790 | /* update sequence number; if that results in a new local sequence |
1791 | * inform bgp | |
1792 | */ | |
1793 | tmp_seq = MAX(mac->loc_seq, seq); | |
1794 | if (tmp_seq != mac->loc_seq) { | |
1795 | mac->loc_seq = tmp_seq; | |
1796 | seq_change = true; | |
1797 | inform_bgp = true; | |
1798 | } | |
24268cd0 | 1799 | |
b16e8004 DS |
1800 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1801 | char mac_buf[MAC_BUF_SIZE]; | |
1802 | ||
ef7b8be4 DL |
1803 | zlog_debug("sync-mac %s vni %u mac %pEA es %s seq %d f %s%s%s", |
1804 | ctx->mac_created ? "created" : "updated", | |
1805 | zevpn->vni, macaddr, | |
b2998086 | 1806 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
1807 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1808 | sizeof(mac_buf)), | |
1809 | inform_bgp ? "inform_bgp" : "", | |
b2998086 | 1810 | inform_dataplane ? " inform_dp" : ""); |
b16e8004 | 1811 | } |
24268cd0 | 1812 | |
b2998086 PR |
1813 | if (inform_bgp) |
1814 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1815 | new_bgp_ready); | |
24268cd0 | 1816 | |
b2998086 PR |
1817 | /* neighs using the mac may need to be re-sent to |
1818 | * bgp with updated info | |
1819 | */ | |
1820 | if (seq_change || es_change || !old_local) | |
1821 | zebra_evpn_process_neigh_on_local_mac_change( | |
1822 | zevpn, mac, seq_change, es_change); | |
24268cd0 | 1823 | |
b2998086 PR |
1824 | if (inform_dataplane) { |
1825 | if (ipa_len) | |
1826 | /* if the mac is being created as a part of MAC-IP | |
1827 | * route wait for the neigh to be updated or | |
1828 | * created before programming the mac | |
1829 | */ | |
1830 | ctx->mac_dp_update_deferred = true; | |
1831 | else | |
1832 | /* program the local mac in the kernel. when the ES | |
1833 | * change we need to force the dataplane to reset | |
1834 | * the activity as we are yet to establish activity | |
1835 | * locally | |
1836 | */ | |
1837 | zebra_evpn_sync_mac_dp_install( | |
1838 | mac, ctx->mac_inactive, | |
1839 | false /* force_clear_static */, __func__); | |
1840 | } | |
24268cd0 | 1841 | |
b2998086 | 1842 | return mac; |
24268cd0 PR |
1843 | } |
1844 | ||
b2998086 PR |
1845 | /* update local fowarding info. return true if a dest-ES change |
1846 | * is detected | |
1847 | */ | |
d9d3455e PR |
1848 | static bool zebra_evpn_local_mac_update_fwd_info(zebra_mac_t *mac, |
1849 | struct interface *ifp, | |
1850 | vlanid_t vid) | |
24268cd0 | 1851 | { |
b2998086 PR |
1852 | struct zebra_if *zif = ifp->info; |
1853 | bool es_change; | |
47c58929 PG |
1854 | ns_id_t local_ns_id = NS_DEFAULT; |
1855 | struct zebra_vrf *zvrf; | |
00a7710c | 1856 | struct zebra_evpn_es *es; |
47c58929 PG |
1857 | |
1858 | zvrf = zebra_vrf_lookup_by_id(ifp->vrf_id); | |
1859 | if (zvrf && zvrf->zns) | |
1860 | local_ns_id = zvrf->zns->ns_id; | |
24268cd0 | 1861 | |
8b07f173 | 1862 | zebra_evpn_mac_clear_fwd_info(mac); |
24268cd0 | 1863 | |
00a7710c AK |
1864 | es = zif->es_info.es; |
1865 | if (es && (es->flags & ZEBRA_EVPNES_BYPASS)) | |
1866 | es = NULL; | |
1867 | es_change = zebra_evpn_es_mac_ref_entry(mac, es); | |
24268cd0 | 1868 | |
b2998086 PR |
1869 | if (!mac->es) { |
1870 | /* if es is set fwd_info is not-relevant/taped-out */ | |
1871 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
47c58929 | 1872 | mac->fwd_info.local.ns_id = local_ns_id; |
b2998086 | 1873 | mac->fwd_info.local.vid = vid; |
8b07f173 | 1874 | zebra_evpn_mac_ifp_link(mac, ifp); |
24268cd0 PR |
1875 | } |
1876 | ||
b2998086 | 1877 | return es_change; |
24268cd0 PR |
1878 | } |
1879 | ||
24268cd0 | 1880 | /* Notify Local MACs to the clienti, skips GW MAC */ |
b2998086 PR |
1881 | static void zebra_evpn_send_mac_hash_entry_to_client(struct hash_bucket *bucket, |
1882 | void *arg) | |
24268cd0 PR |
1883 | { |
1884 | struct mac_walk_ctx *wctx = arg; | |
1885 | zebra_mac_t *zmac = bucket->data; | |
1886 | ||
1887 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_DEF_GW)) | |
1888 | return; | |
1889 | ||
1890 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) | |
b2998086 PR |
1891 | zebra_evpn_mac_send_add_to_client(wctx->zevpn->vni, |
1892 | &zmac->macaddr, zmac->flags, | |
1893 | zmac->loc_seq, zmac->es); | |
24268cd0 PR |
1894 | } |
1895 | ||
1896 | /* Iterator to Notify Local MACs of a EVPN */ | |
f6371c34 | 1897 | void zebra_evpn_send_mac_list_to_client(struct zebra_evpn *zevpn) |
24268cd0 PR |
1898 | { |
1899 | struct mac_walk_ctx wctx; | |
1900 | ||
1901 | if (!zevpn->mac_table) | |
1902 | return; | |
1903 | ||
1904 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); | |
1905 | wctx.zevpn = zevpn; | |
1906 | ||
b2998086 PR |
1907 | hash_iterate(zevpn->mac_table, zebra_evpn_send_mac_hash_entry_to_client, |
1908 | &wctx); | |
24268cd0 PR |
1909 | } |
1910 | ||
f6371c34 | 1911 | void zebra_evpn_rem_mac_del(struct zebra_evpn *zevpn, zebra_mac_t *mac) |
24268cd0 | 1912 | { |
b2998086 PR |
1913 | zebra_evpn_process_neigh_on_remote_mac_del(zevpn, mac); |
1914 | /* the remote sequence number in the auto mac entry | |
1915 | * needs to be reset to 0 as the mac entry may have | |
1916 | * been removed on all VTEPs (including | |
1917 | * the originating one) | |
1918 | */ | |
1919 | mac->rem_seq = 0; | |
24268cd0 | 1920 | |
b2998086 PR |
1921 | /* If all remote neighbors referencing a remote MAC |
1922 | * go away, we need to uninstall the MAC. | |
1923 | */ | |
1924 | if (remote_neigh_count(mac) == 0) { | |
f3722826 | 1925 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false /*force*/); |
b2998086 PR |
1926 | zebra_evpn_es_mac_deref_entry(mac); |
1927 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
24268cd0 PR |
1928 | } |
1929 | ||
b2998086 PR |
1930 | if (list_isempty(mac->neigh_list)) |
1931 | zebra_evpn_mac_del(zevpn, mac); | |
1932 | else | |
1933 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
24268cd0 PR |
1934 | } |
1935 | ||
b2998086 PR |
1936 | /* Print Duplicate MAC */ |
1937 | void zebra_evpn_print_dad_mac_hash(struct hash_bucket *bucket, void *ctxt) | |
24268cd0 | 1938 | { |
b2998086 | 1939 | zebra_mac_t *mac; |
24268cd0 | 1940 | |
b2998086 PR |
1941 | mac = (zebra_mac_t *)bucket->data; |
1942 | if (!mac) | |
1943 | return; | |
24268cd0 | 1944 | |
b2998086 PR |
1945 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
1946 | zebra_evpn_print_mac_hash(bucket, ctxt); | |
24268cd0 PR |
1947 | } |
1948 | ||
b2998086 PR |
1949 | /* Print Duplicate MAC in detail */ |
1950 | void zebra_evpn_print_dad_mac_hash_detail(struct hash_bucket *bucket, | |
1951 | void *ctxt) | |
24268cd0 | 1952 | { |
b2998086 | 1953 | zebra_mac_t *mac; |
24268cd0 | 1954 | |
b2998086 PR |
1955 | mac = (zebra_mac_t *)bucket->data; |
1956 | if (!mac) | |
1957 | return; | |
24268cd0 | 1958 | |
b2998086 PR |
1959 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
1960 | zebra_evpn_print_mac_hash_detail(bucket, ctxt); | |
24268cd0 | 1961 | } |
19fdd1be | 1962 | |
f6371c34 DS |
1963 | int zebra_evpn_mac_remote_macip_add( |
1964 | struct zebra_evpn *zevpn, struct zebra_vrf *zvrf, | |
1965 | const struct ethaddr *macaddr, uint16_t ipa_len, | |
1966 | const struct ipaddr *ipaddr, zebra_mac_t **macp, struct in_addr vtep_ip, | |
1967 | uint8_t flags, uint32_t seq, const esi_t *esi) | |
19fdd1be | 1968 | { |
19fdd1be | 1969 | char buf1[INET6_ADDRSTRLEN]; |
19fdd1be PR |
1970 | bool sticky; |
1971 | bool remote_gw; | |
1972 | int update_mac = 0; | |
1973 | bool do_dad = false; | |
1974 | bool is_dup_detect = false; | |
1975 | esi_t *old_esi; | |
1976 | bool old_static = false; | |
1977 | zebra_mac_t *mac; | |
8e1337c5 AK |
1978 | bool old_es_present; |
1979 | bool new_es_present; | |
19fdd1be PR |
1980 | |
1981 | sticky = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
1982 | remote_gw = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
1983 | ||
1984 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
1985 | ||
1986 | /* Ignore if the mac is already present as a gateway mac */ | |
1987 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) | |
1988 | && CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW)) { | |
1989 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1990 | zlog_debug( | |
ef7b8be4 DL |
1991 | "Ignore remote MACIP ADD VNI %u MAC %pEA%s%s as MAC is already configured as gateway MAC", |
1992 | zevpn->vni, macaddr, | |
19fdd1be PR |
1993 | ipa_len ? " IP " : "", |
1994 | ipa_len ? ipaddr2str(ipaddr, buf1, sizeof(buf1)) | |
1995 | : ""); | |
1996 | return -1; | |
1997 | } | |
1998 | ||
1999 | old_esi = (mac && mac->es) ? &mac->es->esi : zero_esi; | |
2000 | ||
2001 | /* check if the remote MAC is unknown or has a change. | |
2002 | * If so, that needs to be updated first. Note that client could | |
2003 | * install MAC and MACIP separately or just install the latter. | |
2004 | */ | |
2005 | if (!mac || !CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2006 | || sticky != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) | |
2007 | || remote_gw != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) | |
2008 | || !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &vtep_ip) | |
2009 | || memcmp(old_esi, esi, sizeof(esi_t)) || seq != mac->rem_seq) | |
2010 | update_mac = 1; | |
2011 | ||
2012 | if (update_mac) { | |
2013 | if (!mac) { | |
2014 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
2015 | if (!mac) { | |
2016 | zlog_warn( | |
ef7b8be4 DL |
2017 | "Failed to add MAC %pEA VNI %u Remote VTEP %pI4", |
2018 | macaddr, zevpn->vni, &vtep_ip); | |
19fdd1be PR |
2019 | return -1; |
2020 | } | |
2021 | ||
2022 | zebra_evpn_es_mac_ref(mac, esi); | |
2023 | ||
2024 | /* Is this MAC created for a MACIP? */ | |
2025 | if (ipa_len) | |
2026 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2027 | } else { | |
19fdd1be PR |
2028 | /* When host moves but changes its (MAC,IP) |
2029 | * binding, BGP may install a MACIP entry that | |
2030 | * corresponds to "older" location of the host | |
2031 | * in transient situations (because {IP1,M1} | |
2032 | * is a different route from {IP1,M2}). Check | |
2033 | * the sequence number and ignore this update | |
2034 | * if appropriate. | |
2035 | */ | |
16de1338 AK |
2036 | if (!zebra_evpn_mac_is_bgp_seq_ok( |
2037 | zevpn, mac, seq, ipa_len, ipaddr, false)) | |
19fdd1be | 2038 | return -1; |
c1735c08 | 2039 | |
8e1337c5 | 2040 | old_es_present = !!mac->es; |
c1735c08 | 2041 | zebra_evpn_es_mac_ref(mac, esi); |
8e1337c5 AK |
2042 | new_es_present = !!mac->es; |
2043 | /* XXX - dataplane is curently not able to handle a MAC | |
2044 | * replace if the destination changes from L2-NHG to | |
2045 | * single VTEP and vice-versa. So delete the old entry | |
2046 | * and re-install | |
2047 | */ | |
2048 | if (old_es_present != new_es_present) | |
2049 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false); | |
19fdd1be PR |
2050 | } |
2051 | ||
2052 | /* Check MAC's curent state is local (this is the case | |
2053 | * where MAC has moved from L->R) and check previous | |
2054 | * detection started via local learning. | |
2055 | * RFC-7432: A PE/VTEP that detects a MAC mobility | |
2056 | * event via local learning starts an M-second timer. | |
2057 | * | |
2058 | * VTEP-IP or seq. change alone is not considered | |
2059 | * for dup. detection. | |
2060 | * | |
2061 | * MAC is already marked duplicate set dad, then | |
2062 | * is_dup_detect will be set to not install the entry. | |
2063 | */ | |
2064 | if ((!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2065 | && mac->dad_count) | |
2066 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
2067 | do_dad = true; | |
2068 | ||
2069 | /* Remove local MAC from BGP. */ | |
2070 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
2071 | /* force drop the sync flags */ | |
2072 | old_static = zebra_evpn_mac_is_static(mac); | |
b16e8004 DS |
2073 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2074 | char mac_buf[MAC_BUF_SIZE]; | |
2075 | ||
19fdd1be | 2076 | zlog_debug( |
ef7b8be4 DL |
2077 | "sync-mac->remote vni %u mac %pEA es %s seq %d f %s", |
2078 | zevpn->vni, macaddr, | |
19fdd1be | 2079 | mac->es ? mac->es->esi_str : "-", |
b16e8004 DS |
2080 | mac->loc_seq, |
2081 | zebra_evpn_zebra_mac_flag_dump( | |
2082 | mac, mac_buf, sizeof(mac_buf))); | |
2083 | } | |
2084 | ||
19fdd1be PR |
2085 | zebra_evpn_mac_clear_sync_info(mac); |
2086 | zebra_evpn_mac_send_del_to_client(zevpn->vni, macaddr, | |
2087 | mac->flags, | |
2088 | false /* force */); | |
2089 | } | |
2090 | ||
2091 | /* Set "auto" and "remote" forwarding info. */ | |
8b07f173 | 2092 | zebra_evpn_mac_clear_fwd_info(mac); |
19fdd1be | 2093 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); |
19fdd1be PR |
2094 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); |
2095 | mac->fwd_info.r_vtep_ip = vtep_ip; | |
2096 | ||
2097 | if (sticky) | |
2098 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2099 | else | |
2100 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2101 | ||
2102 | if (remote_gw) | |
2103 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
2104 | else | |
2105 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
2106 | ||
2107 | zebra_evpn_dup_addr_detect_for_mac( | |
2108 | zvrf, mac, mac->fwd_info.r_vtep_ip, do_dad, | |
2109 | &is_dup_detect, false); | |
2110 | ||
2111 | if (!is_dup_detect) { | |
2112 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
2113 | /* Install the entry. */ | |
2114 | zebra_evpn_rem_mac_install(zevpn, mac, old_static); | |
2115 | } | |
2116 | } | |
2117 | ||
2118 | /* Update seq number. */ | |
2119 | mac->rem_seq = seq; | |
2120 | ||
2121 | /* If there is no IP, return after clearing AUTO flag of MAC. */ | |
2122 | if (!ipa_len) { | |
2123 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2124 | return -1; | |
2125 | } | |
2126 | *macp = mac; | |
2127 | return 0; | |
2128 | } | |
d9d3455e | 2129 | |
f6371c34 DS |
2130 | int zebra_evpn_add_update_local_mac(struct zebra_vrf *zvrf, |
2131 | struct zebra_evpn *zevpn, | |
d9d3455e | 2132 | struct interface *ifp, |
1a3bd37f | 2133 | const struct ethaddr *macaddr, vlanid_t vid, |
d9d3455e | 2134 | bool sticky, bool local_inactive, |
00a7710c | 2135 | bool dp_static, zebra_mac_t *mac) |
d9d3455e | 2136 | { |
d9d3455e PR |
2137 | bool mac_sticky = false; |
2138 | bool inform_client = false; | |
2139 | bool upd_neigh = false; | |
2140 | bool is_dup_detect = false; | |
2141 | struct in_addr vtep_ip = {.s_addr = 0}; | |
2142 | bool es_change = false; | |
2143 | bool new_bgp_ready; | |
2144 | /* assume inactive if not present or if not local */ | |
2145 | bool old_local_inactive = true; | |
2146 | bool old_bgp_ready = false; | |
2147 | bool inform_dataplane = false; | |
2148 | bool new_static = false; | |
2149 | ||
2bdd4461 | 2150 | assert(ifp); |
d9d3455e | 2151 | /* Check if we need to create or update or it is a NO-OP. */ |
00a7710c AK |
2152 | if (!mac) |
2153 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
d9d3455e PR |
2154 | if (!mac) { |
2155 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
2156 | zlog_debug( | |
ef7b8be4 DL |
2157 | "ADD %sMAC %pEA intf %s(%u) VID %u -> VNI %u%s", |
2158 | sticky ? "sticky " : "", macaddr, | |
d9d3455e PR |
2159 | ifp->name, ifp->ifindex, vid, zevpn->vni, |
2160 | local_inactive ? " local-inactive" : ""); | |
2161 | ||
2162 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
2163 | if (!mac) { | |
2164 | flog_err( | |
2165 | EC_ZEBRA_MAC_ADD_FAILED, | |
ef7b8be4 DL |
2166 | "Failed to add MAC %pEA intf %s(%u) VID %u VNI %u", |
2167 | macaddr, ifp->name, ifp->ifindex, vid, | |
2168 | zevpn->vni); | |
d9d3455e PR |
2169 | return -1; |
2170 | } | |
2171 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
2172 | es_change = zebra_evpn_local_mac_update_fwd_info(mac, ifp, vid); | |
2173 | if (sticky) | |
2174 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2175 | inform_client = true; | |
2176 | } else { | |
b16e8004 DS |
2177 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2178 | char mac_buf[MAC_BUF_SIZE]; | |
2179 | ||
d9d3455e | 2180 | zlog_debug( |
ef7b8be4 DL |
2181 | "UPD %sMAC %pEA intf %s(%u) VID %u -> VNI %u %scurFlags %s", |
2182 | sticky ? "sticky " : "", macaddr, | |
d9d3455e PR |
2183 | ifp->name, ifp->ifindex, vid, zevpn->vni, |
2184 | local_inactive ? "local-inactive " : "", | |
b16e8004 DS |
2185 | zebra_evpn_zebra_mac_flag_dump( |
2186 | mac, mac_buf, sizeof(mac_buf))); | |
2187 | } | |
d9d3455e PR |
2188 | |
2189 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
2190 | struct interface *old_ifp; | |
2191 | vlanid_t old_vid; | |
2192 | bool old_static; | |
2193 | ||
2194 | zebra_evpn_mac_get_access_info(mac, &old_ifp, &old_vid); | |
2195 | old_bgp_ready = | |
2196 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2197 | old_local_inactive = | |
2198 | !!(mac->flags & ZEBRA_MAC_LOCAL_INACTIVE); | |
2199 | old_static = zebra_evpn_mac_is_static(mac); | |
2200 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) | |
2201 | mac_sticky = true; | |
00a7710c AK |
2202 | es_change = zebra_evpn_local_mac_update_fwd_info( |
2203 | mac, ifp, vid); | |
d9d3455e PR |
2204 | |
2205 | /* | |
2206 | * Update any changes and if changes are relevant to | |
2207 | * BGP, note it. | |
2208 | */ | |
2209 | if (mac_sticky == sticky && old_ifp == ifp | |
2210 | && old_vid == vid | |
2211 | && old_local_inactive == local_inactive | |
00a7710c | 2212 | && dp_static == old_static && !es_change) { |
d9d3455e PR |
2213 | if (IS_ZEBRA_DEBUG_VXLAN) |
2214 | zlog_debug( | |
ef7b8be4 | 2215 | " Add/Update %sMAC %pEA intf %s(%u) VID %u -> VNI %u%s, " |
d9d3455e | 2216 | "entry exists and has not changed ", |
ef7b8be4 DL |
2217 | sticky ? "sticky " : "", |
2218 | macaddr, ifp->name, | |
2219 | ifp->ifindex, vid, zevpn->vni, | |
d9d3455e PR |
2220 | local_inactive |
2221 | ? " local_inactive" | |
2222 | : ""); | |
2223 | return 0; | |
2224 | } | |
2225 | if (mac_sticky != sticky) { | |
2226 | if (sticky) | |
2227 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2228 | else | |
2229 | UNSET_FLAG(mac->flags, | |
2230 | ZEBRA_MAC_STICKY); | |
2231 | inform_client = true; | |
2232 | } | |
2233 | ||
d9d3455e PR |
2234 | /* If an es_change is detected we need to advertise |
2235 | * the route with a sequence that is one | |
2236 | * greater. This is need to indicate a mac-move | |
2237 | * to the ES peers | |
2238 | */ | |
2239 | if (es_change) { | |
00a7710c AK |
2240 | /* update the sequence number only if the entry |
2241 | * is locally active | |
2242 | */ | |
2243 | if (!local_inactive) | |
2244 | mac->loc_seq = mac->loc_seq + 1; | |
d9d3455e PR |
2245 | /* force drop the peer/sync info as it is |
2246 | * simply no longer relevant | |
2247 | */ | |
2248 | if (CHECK_FLAG(mac->flags, | |
2249 | ZEBRA_MAC_ALL_PEER_FLAGS)) { | |
2250 | zebra_evpn_mac_clear_sync_info(mac); | |
2251 | new_static = | |
2252 | zebra_evpn_mac_is_static(mac); | |
2253 | /* if we clear peer-flags we | |
2254 | * also need to notify the dataplane | |
2255 | * to drop the static flag | |
2256 | */ | |
2257 | if (old_static != new_static) | |
2258 | inform_dataplane = true; | |
2259 | } | |
2260 | } | |
2261 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2262 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { | |
2263 | bool do_dad = false; | |
2264 | ||
2265 | /* | |
2266 | * MAC has either moved or was "internally" created due | |
2267 | * to a neighbor learn and is now actually learnt. If | |
2268 | * it was learnt as a remote sticky MAC, this is an | |
2269 | * operator error. | |
2270 | */ | |
2271 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) { | |
2272 | flog_warn( | |
2273 | EC_ZEBRA_STICKY_MAC_ALREADY_LEARNT, | |
ef7b8be4 DL |
2274 | "MAC %pEA already learnt as remote sticky MAC behind VTEP %pI4 VNI %u", |
2275 | macaddr, | |
9bcef951 | 2276 | &mac->fwd_info.r_vtep_ip, |
d9d3455e PR |
2277 | zevpn->vni); |
2278 | return 0; | |
2279 | } | |
2280 | ||
2281 | /* If an actual move, compute MAC's seq number */ | |
2282 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
2283 | mac->loc_seq = | |
2284 | MAX(mac->rem_seq + 1, mac->loc_seq); | |
2285 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
2286 | /* Trigger DAD for remote MAC */ | |
2287 | do_dad = true; | |
2288 | } | |
2289 | ||
2290 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
2291 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2292 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
2293 | es_change = zebra_evpn_local_mac_update_fwd_info( | |
2294 | mac, ifp, vid); | |
2295 | if (sticky) | |
2296 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2297 | else | |
2298 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2299 | /* | |
2300 | * We have to inform BGP of this MAC as well as process | |
2301 | * all neighbors. | |
2302 | */ | |
2303 | inform_client = true; | |
2304 | upd_neigh = true; | |
2305 | ||
2306 | zebra_evpn_dup_addr_detect_for_mac( | |
2307 | zvrf, mac, vtep_ip, do_dad, &is_dup_detect, | |
2308 | true); | |
2309 | if (is_dup_detect) { | |
2310 | inform_client = false; | |
2311 | upd_neigh = false; | |
839dfe29 | 2312 | es_change = false; |
d9d3455e PR |
2313 | } |
2314 | } | |
2315 | } | |
2316 | ||
2317 | /* if the dataplane thinks the entry is sync but it is | |
69711b3f AK |
2318 | * not sync in zebra (or vice-versa) we need to re-install |
2319 | * to fixup | |
d9d3455e | 2320 | */ |
69711b3f AK |
2321 | new_static = zebra_evpn_mac_is_static(mac); |
2322 | if (dp_static != new_static) | |
2323 | inform_dataplane = true; | |
d9d3455e PR |
2324 | |
2325 | if (local_inactive) | |
2326 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2327 | else | |
2328 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2329 | ||
2330 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2331 | /* if local-activity has changed we need update bgp | |
2332 | * even if bgp already knows about the mac | |
2333 | */ | |
2334 | if ((old_local_inactive != local_inactive) | |
2335 | || (new_bgp_ready != old_bgp_ready)) { | |
b16e8004 DS |
2336 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2337 | char mac_buf[MAC_BUF_SIZE]; | |
2338 | ||
d9d3455e | 2339 | zlog_debug( |
ef7b8be4 DL |
2340 | "local mac vni %u mac %pEA es %s seq %d f %s%s", |
2341 | zevpn->vni, macaddr, | |
d9d3455e | 2342 | mac->es ? mac->es->esi_str : "", mac->loc_seq, |
b16e8004 DS |
2343 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
2344 | sizeof(mac_buf)), | |
2345 | local_inactive ? "local-inactive" : ""); | |
2346 | } | |
2347 | ||
839dfe29 CS |
2348 | if (!is_dup_detect) |
2349 | inform_client = true; | |
d9d3455e PR |
2350 | } |
2351 | ||
2352 | if (es_change) { | |
2353 | inform_client = true; | |
2354 | upd_neigh = true; | |
2355 | } | |
2356 | ||
2357 | /* Inform dataplane if required. */ | |
2358 | if (inform_dataplane) | |
2359 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
2360 | false /* force_clear_static */, | |
2361 | __func__); | |
2362 | ||
2363 | /* Inform BGP if required. */ | |
2364 | if (inform_client) | |
2365 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2366 | new_bgp_ready); | |
2367 | ||
2368 | /* Process all neighbors associated with this MAC, if required. */ | |
2369 | if (upd_neigh) | |
2370 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
2371 | es_change); | |
2372 | ||
2373 | return 0; | |
2374 | } | |
ad6ca5f4 | 2375 | |
f6371c34 | 2376 | int zebra_evpn_del_local_mac(struct zebra_evpn *zevpn, zebra_mac_t *mac, |
00a7710c | 2377 | bool clear_static) |
ad6ca5f4 | 2378 | { |
ad6ca5f4 PR |
2379 | bool old_bgp_ready; |
2380 | bool new_bgp_ready; | |
b16e8004 | 2381 | |
46d6f5a2 | 2382 | if (IS_ZEBRA_DEBUG_VXLAN) |
ef7b8be4 DL |
2383 | zlog_debug("DEL MAC %pEA VNI %u seq %u flags 0x%x nbr count %u", |
2384 | &mac->macaddr, zevpn->vni, mac->loc_seq, mac->flags, | |
46d6f5a2 | 2385 | listcount(mac->neigh_list)); |
ad6ca5f4 PR |
2386 | |
2387 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
00a7710c | 2388 | if (!clear_static && zebra_evpn_mac_is_static(mac)) { |
ad6ca5f4 PR |
2389 | /* this is a synced entry and can only be removed when the |
2390 | * es-peers stop advertising it. | |
2391 | */ | |
8b07f173 | 2392 | zebra_evpn_mac_clear_fwd_info(mac); |
ad6ca5f4 | 2393 | |
b16e8004 DS |
2394 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2395 | char mac_buf[MAC_BUF_SIZE]; | |
2396 | ||
ad6ca5f4 | 2397 | zlog_debug( |
ef7b8be4 DL |
2398 | "re-add sync-mac vni %u mac %pEA es %s seq %d f %s", |
2399 | zevpn->vni, &mac->macaddr, | |
ad6ca5f4 | 2400 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
2401 | zebra_evpn_zebra_mac_flag_dump( |
2402 | mac, mac_buf, sizeof(mac_buf))); | |
2403 | } | |
ad6ca5f4 PR |
2404 | |
2405 | /* inform-bgp about change in local-activity if any */ | |
2406 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) { | |
2407 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2408 | new_bgp_ready = | |
2409 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2410 | zebra_evpn_mac_send_add_del_to_client( | |
2411 | mac, old_bgp_ready, new_bgp_ready); | |
2412 | } | |
2413 | ||
1a4f9efd AK |
2414 | /* re-install the inactive entry in the kernel */ |
2415 | zebra_evpn_sync_mac_dp_install(mac, true /* set_inactive */, | |
ad6ca5f4 PR |
2416 | false /* force_clear_static */, |
2417 | __func__); | |
2418 | ||
2419 | return 0; | |
2420 | } | |
2421 | ||
00a7710c AK |
2422 | /* flush the peer info */ |
2423 | zebra_evpn_mac_clear_sync_info(mac); | |
2424 | ||
ad6ca5f4 PR |
2425 | /* Update all the neigh entries associated with this mac */ |
2426 | zebra_evpn_process_neigh_on_local_mac_del(zevpn, mac); | |
2427 | ||
2428 | /* Remove MAC from BGP. */ | |
46d6f5a2 | 2429 | zebra_evpn_mac_send_del_to_client(zevpn->vni, &mac->macaddr, mac->flags, |
ad6ca5f4 PR |
2430 | false /* force */); |
2431 | ||
2432 | zebra_evpn_es_mac_deref_entry(mac); | |
2433 | ||
8b07f173 AK |
2434 | /* remove links to the destination access port */ |
2435 | zebra_evpn_mac_clear_fwd_info(mac); | |
2436 | ||
ad6ca5f4 PR |
2437 | /* |
2438 | * If there are no neigh associated with the mac delete the mac | |
2439 | * else mark it as AUTO for forward reference | |
2440 | */ | |
2441 | if (!listcount(mac->neigh_list)) { | |
2442 | zebra_evpn_mac_del(zevpn, mac); | |
2443 | } else { | |
2444 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); | |
2445 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2446 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2447 | } | |
2448 | ||
2449 | return 0; | |
2450 | } | |
7bce3535 | 2451 | |
f6371c34 | 2452 | int zebra_evpn_mac_gw_macip_add(struct interface *ifp, struct zebra_evpn *zevpn, |
1a3bd37f MS |
2453 | const struct ipaddr *ip, zebra_mac_t **macp, |
2454 | const struct ethaddr *macaddr, vlanid_t vlan_id, | |
e4c3ece6 | 2455 | bool def_gw) |
7bce3535 | 2456 | { |
7bce3535 | 2457 | zebra_mac_t *mac; |
47c58929 PG |
2458 | ns_id_t local_ns_id = NS_DEFAULT; |
2459 | struct zebra_vrf *zvrf; | |
2460 | ||
2461 | zvrf = zebra_vrf_lookup_by_id(ifp->vrf_id); | |
2462 | if (zvrf && zvrf->zns) | |
2463 | local_ns_id = zvrf->zns->ns_id; | |
7bce3535 PR |
2464 | |
2465 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2466 | if (!mac) { | |
2467 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
2468 | if (!mac) { | |
2469 | flog_err(EC_ZEBRA_MAC_ADD_FAILED, | |
ef7b8be4 DL |
2470 | "Failed to add MAC %pEA intf %s(%u) VID %u", |
2471 | macaddr, ifp->name, ifp->ifindex, vlan_id); | |
7bce3535 PR |
2472 | return -1; |
2473 | } | |
2474 | } | |
2475 | ||
2476 | /* Set "local" forwarding info. */ | |
8b07f173 | 2477 | zebra_evpn_mac_clear_fwd_info(mac); |
7bce3535 PR |
2478 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); |
2479 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
e4c3ece6 AK |
2480 | if (def_gw) |
2481 | SET_FLAG(mac->flags, ZEBRA_MAC_DEF_GW); | |
7bce3535 | 2482 | mac->fwd_info.local.ifindex = ifp->ifindex; |
47c58929 | 2483 | mac->fwd_info.local.ns_id = local_ns_id; |
7bce3535 PR |
2484 | mac->fwd_info.local.vid = vlan_id; |
2485 | ||
2486 | *macp = mac; | |
2487 | ||
2488 | return 0; | |
2489 | } | |
243b74ed | 2490 | |
f6371c34 | 2491 | void zebra_evpn_mac_svi_del(struct interface *ifp, struct zebra_evpn *zevpn) |
243b74ed AK |
2492 | { |
2493 | zebra_mac_t *mac; | |
2494 | struct ethaddr macaddr; | |
e4c3ece6 | 2495 | bool old_bgp_ready; |
243b74ed AK |
2496 | |
2497 | if (!zebra_evpn_mh_do_adv_svi_mac()) | |
2498 | return; | |
2499 | ||
2500 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2501 | mac = zebra_evpn_mac_lookup(zevpn, &macaddr); | |
2502 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) { | |
2503 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES) | |
2504 | zlog_debug("SVI %s mac free", ifp->name); | |
2505 | ||
e4c3ece6 | 2506 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
243b74ed | 2507 | UNSET_FLAG(mac->flags, ZEBRA_MAC_SVI); |
e4c3ece6 AK |
2508 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, |
2509 | false); | |
243b74ed AK |
2510 | zebra_evpn_deref_ip2mac(mac->zevpn, mac); |
2511 | } | |
2512 | } | |
2513 | ||
f6371c34 | 2514 | void zebra_evpn_mac_svi_add(struct interface *ifp, struct zebra_evpn *zevpn) |
243b74ed AK |
2515 | { |
2516 | zebra_mac_t *mac = NULL; | |
2517 | struct ethaddr macaddr; | |
2518 | struct zebra_if *zif = ifp->info; | |
e4c3ece6 AK |
2519 | bool old_bgp_ready; |
2520 | bool new_bgp_ready; | |
243b74ed | 2521 | |
e4c3ece6 AK |
2522 | if (!zebra_evpn_mh_do_adv_svi_mac() |
2523 | || !zebra_evpn_send_to_client_ok(zevpn)) | |
243b74ed AK |
2524 | return; |
2525 | ||
2526 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2527 | ||
2528 | /* dup check */ | |
2529 | mac = zebra_evpn_mac_lookup(zevpn, &macaddr); | |
2530 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) | |
2531 | return; | |
2532 | ||
2533 | /* add/update mac */ | |
2534 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES) | |
2535 | zlog_debug("SVI %s mac add", zif->ifp->name); | |
2536 | ||
e4c3ece6 AK |
2537 | old_bgp_ready = (mac && zebra_evpn_mac_is_ready_for_bgp(mac->flags)) |
2538 | ? true | |
2539 | : false; | |
2540 | ||
243b74ed | 2541 | mac = NULL; |
e4c3ece6 | 2542 | zebra_evpn_mac_gw_macip_add(ifp, zevpn, NULL, &mac, &macaddr, 0, false); |
243b74ed AK |
2543 | if (mac) |
2544 | SET_FLAG(mac->flags, ZEBRA_MAC_SVI); | |
e4c3ece6 AK |
2545 | |
2546 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2547 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2548 | new_bgp_ready); | |
243b74ed | 2549 | } |