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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; | |
3198b2b3 | 56 | struct zebra_mac *mac; |
24268cd0 PR |
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) { | |
3198b2b3 | 63 | mac = (struct zebra_mac *)hb->data; |
24268cd0 PR |
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; | |
3198b2b3 | 80 | struct zebra_mac *mac; |
24268cd0 PR |
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) { | |
3198b2b3 | 87 | mac = (struct zebra_mac *)hb->data; |
24268cd0 PR |
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 */ | |
3198b2b3 | 123 | static void zebra_evpn_mac_ifp_unlink(struct zebra_mac *zmac) |
8b07f173 AK |
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 | */ | |
3198b2b3 DS |
146 | static void zebra_evpn_mac_ifp_link(struct zebra_mac *zmac, |
147 | struct interface *ifp) | |
8b07f173 AK |
148 | { |
149 | struct zebra_if *zif; | |
150 | ||
151 | if (!CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) | |
152 | return; | |
153 | ||
154 | /* already linked to the destination */ | |
155 | if (zmac->ifp == ifp) | |
156 | return; | |
157 | ||
158 | /* unlink the mac from any old destination */ | |
159 | if (zmac->ifp) | |
160 | zebra_evpn_mac_ifp_unlink(zmac); | |
161 | ||
162 | if (!ifp) | |
163 | return; | |
164 | ||
165 | zif = ifp->info; | |
166 | /* the interface mac_list is created on first mac link attempt */ | |
167 | if (!zif->mac_list) | |
168 | zebra_evpn_mac_ifp_new(zif); | |
169 | ||
170 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
171 | zlog_debug("VNI %d MAC %pEA linked to ifp %s (%u)", | |
172 | zmac->zevpn->vni, | |
173 | &zmac->macaddr, | |
174 | ifp->name, ifp->ifindex); | |
175 | ||
176 | zmac->ifp = ifp; | |
177 | listnode_init(&zmac->ifp_listnode, zmac); | |
178 | listnode_add(zif->mac_list, &zmac->ifp_listnode); | |
179 | } | |
180 | ||
181 | /* If the mac is a local mac clear links to destination access port */ | |
3198b2b3 | 182 | void zebra_evpn_mac_clear_fwd_info(struct zebra_mac *zmac) |
8b07f173 AK |
183 | { |
184 | zebra_evpn_mac_ifp_unlink(zmac); | |
185 | memset(&zmac->fwd_info, 0, sizeof(zmac->fwd_info)); | |
186 | } | |
187 | ||
b2998086 PR |
188 | /* |
189 | * Install remote MAC into the forwarding plane. | |
190 | */ | |
3198b2b3 | 191 | int zebra_evpn_rem_mac_install(struct zebra_evpn *zevpn, struct zebra_mac *mac, |
b2998086 | 192 | bool was_static) |
24268cd0 | 193 | { |
b2998086 PR |
194 | const struct zebra_if *zif, *br_zif; |
195 | const struct zebra_l2info_vxlan *vxl; | |
196 | bool sticky; | |
197 | enum zebra_dplane_result res; | |
198 | const struct interface *br_ifp; | |
199 | vlanid_t vid; | |
200 | uint32_t nhg_id; | |
201 | struct in_addr vtep_ip; | |
24268cd0 | 202 | |
b2998086 PR |
203 | zif = zevpn->vxlan_if->info; |
204 | if (!zif) | |
205 | return -1; | |
206 | ||
207 | br_ifp = zif->brslave_info.br_if; | |
208 | if (br_ifp == NULL) | |
209 | return -1; | |
210 | ||
211 | vxl = &zif->l2info.vxl; | |
212 | ||
213 | sticky = !!CHECK_FLAG(mac->flags, | |
214 | (ZEBRA_MAC_STICKY | ZEBRA_MAC_REMOTE_DEF_GW)); | |
215 | ||
216 | /* If nexthop group for the FDB entry is inactive (not programmed in | |
217 | * the dataplane) the MAC entry cannot be installed | |
218 | */ | |
219 | if (mac->es) { | |
220 | if (!(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE)) | |
221 | return -1; | |
222 | nhg_id = mac->es->nhg_id; | |
223 | vtep_ip.s_addr = 0; | |
224 | } else { | |
225 | nhg_id = 0; | |
226 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
24268cd0 PR |
227 | } |
228 | ||
b2998086 PR |
229 | br_zif = (const struct zebra_if *)(br_ifp->info); |
230 | ||
231 | if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif)) | |
232 | vid = vxl->access_vlan; | |
233 | else | |
234 | vid = 0; | |
235 | ||
236 | res = dplane_rem_mac_add(zevpn->vxlan_if, br_ifp, vid, &mac->macaddr, | |
237 | vtep_ip, sticky, nhg_id, was_static); | |
238 | if (res != ZEBRA_DPLANE_REQUEST_FAILURE) | |
239 | return 0; | |
240 | else | |
241 | return -1; | |
24268cd0 PR |
242 | } |
243 | ||
b2998086 PR |
244 | /* |
245 | * Uninstall remote MAC from the forwarding plane. | |
246 | */ | |
3198b2b3 DS |
247 | int zebra_evpn_rem_mac_uninstall(struct zebra_evpn *zevpn, |
248 | struct zebra_mac *mac, bool force) | |
24268cd0 | 249 | { |
b2998086 PR |
250 | const struct zebra_if *zif, *br_zif; |
251 | const struct zebra_l2info_vxlan *vxl; | |
252 | struct in_addr vtep_ip; | |
253 | const struct interface *ifp, *br_ifp; | |
254 | vlanid_t vid; | |
255 | enum zebra_dplane_result res; | |
24268cd0 | 256 | |
f3722826 AK |
257 | /* If the MAC was not installed there is no need to uninstall it */ |
258 | if (!force && mac->es && !(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE)) | |
259 | return -1; | |
260 | ||
b2998086 PR |
261 | if (!zevpn->vxlan_if) { |
262 | if (IS_ZEBRA_DEBUG_VXLAN) | |
263 | zlog_debug( | |
264 | "VNI %u hash %p couldn't be uninstalled - no intf", | |
265 | zevpn->vni, zevpn); | |
266 | return -1; | |
267 | } | |
24268cd0 | 268 | |
b2998086 PR |
269 | zif = zevpn->vxlan_if->info; |
270 | if (!zif) | |
271 | return -1; | |
24268cd0 | 272 | |
b2998086 PR |
273 | br_ifp = zif->brslave_info.br_if; |
274 | if (br_ifp == NULL) | |
275 | return -1; | |
24268cd0 | 276 | |
b2998086 | 277 | vxl = &zif->l2info.vxl; |
24268cd0 | 278 | |
b2998086 | 279 | br_zif = (const struct zebra_if *)br_ifp->info; |
24268cd0 | 280 | |
b2998086 PR |
281 | if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif)) |
282 | vid = vxl->access_vlan; | |
283 | else | |
284 | vid = 0; | |
24268cd0 | 285 | |
b2998086 PR |
286 | ifp = zevpn->vxlan_if; |
287 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
288 | ||
289 | res = dplane_rem_mac_del(ifp, br_ifp, vid, &mac->macaddr, vtep_ip); | |
290 | if (res != ZEBRA_DPLANE_REQUEST_FAILURE) | |
291 | return 0; | |
292 | else | |
293 | return -1; | |
24268cd0 PR |
294 | } |
295 | ||
b2998086 PR |
296 | /* |
297 | * Decrement neighbor refcount of MAC; uninstall and free it if | |
298 | * appropriate. | |
24268cd0 | 299 | */ |
3198b2b3 | 300 | void zebra_evpn_deref_ip2mac(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 301 | { |
b2998086 PR |
302 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) |
303 | return; | |
24268cd0 | 304 | |
b2998086 PR |
305 | /* If all remote neighbors referencing a remote MAC go away, |
306 | * we need to uninstall the MAC. | |
24268cd0 | 307 | */ |
b2998086 PR |
308 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) |
309 | && remote_neigh_count(mac) == 0) { | |
f3722826 | 310 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false /*force*/); |
b2998086 PR |
311 | zebra_evpn_es_mac_deref_entry(mac); |
312 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
313 | } | |
314 | ||
243b74ed AK |
315 | /* If no references, delete the MAC. */ |
316 | if (!zebra_evpn_mac_in_use(mac)) | |
b2998086 PR |
317 | zebra_evpn_mac_del(zevpn, mac); |
318 | } | |
319 | ||
3198b2b3 | 320 | static void zebra_evpn_mac_get_access_info(struct zebra_mac *mac, |
d9d3455e PR |
321 | struct interface **ifpP, |
322 | vlanid_t *vid) | |
b2998086 PR |
323 | { |
324 | /* if the mac is associated with an ES we must get the access | |
325 | * info from the ES | |
24268cd0 | 326 | */ |
b2998086 PR |
327 | if (mac->es) { |
328 | struct zebra_if *zif; | |
329 | ||
330 | /* get the access port from the es */ | |
331 | *ifpP = mac->es->zif ? mac->es->zif->ifp : NULL; | |
332 | /* get the vlan from the EVPN */ | |
333 | if (mac->zevpn->vxlan_if) { | |
334 | zif = mac->zevpn->vxlan_if->info; | |
335 | *vid = zif->l2info.vxl.access_vlan; | |
336 | } else { | |
337 | *vid = 0; | |
338 | } | |
339 | } else { | |
340 | struct zebra_ns *zns; | |
341 | ||
342 | *vid = mac->fwd_info.local.vid; | |
47c58929 | 343 | zns = zebra_ns_lookup(mac->fwd_info.local.ns_id); |
b2998086 PR |
344 | *ifpP = if_lookup_by_index_per_ns(zns, |
345 | mac->fwd_info.local.ifindex); | |
346 | } | |
347 | } | |
348 | ||
b16e8004 | 349 | #define MAC_BUF_SIZE 256 |
3198b2b3 | 350 | static char *zebra_evpn_zebra_mac_flag_dump(struct zebra_mac *mac, char *buf, |
b16e8004 DS |
351 | size_t len) |
352 | { | |
353 | if (mac->flags == 0) { | |
354 | snprintfrr(buf, len, "None "); | |
355 | return buf; | |
356 | } | |
357 | ||
358 | snprintfrr( | |
359 | buf, len, "%s%s%s%s%s%s%s%s%s%s%s%s", | |
360 | CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) ? "LOC " : "", | |
361 | CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) ? "REM " : "", | |
362 | CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO) ? "AUTO " : "", | |
363 | CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) ? "STICKY " : "", | |
364 | CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_RMAC) ? "REM Router " | |
365 | : "", | |
366 | CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) ? "Default GW " : "", | |
367 | CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) ? "REM DEF GW " | |
368 | : "", | |
369 | CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE) ? "DUP " : "", | |
370 | CHECK_FLAG(mac->flags, ZEBRA_MAC_FPM_SENT) ? "FPM " : "", | |
371 | CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE) ? "LOC Active " | |
372 | : "", | |
373 | CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY) ? "PROXY " : "", | |
374 | CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE) | |
375 | ? "LOC Inactive " | |
376 | : ""); | |
377 | return buf; | |
378 | } | |
379 | ||
b2998086 PR |
380 | static int zebra_evpn_dad_mac_auto_recovery_exp(struct thread *t) |
381 | { | |
382 | struct zebra_vrf *zvrf = NULL; | |
3198b2b3 | 383 | struct zebra_mac *mac = NULL; |
f6371c34 | 384 | struct zebra_evpn *zevpn = NULL; |
b2998086 | 385 | struct listnode *node = NULL; |
72de4110 | 386 | struct zebra_neigh *nbr = NULL; |
b2998086 PR |
387 | |
388 | mac = THREAD_ARG(t); | |
389 | ||
390 | /* since this is asynchronous we need sanity checks*/ | |
391 | zvrf = vrf_info_lookup(mac->zevpn->vrf_id); | |
392 | if (!zvrf) | |
393 | return 0; | |
394 | ||
8b5fdf2e | 395 | zevpn = zebra_evpn_lookup(mac->zevpn->vni); |
b2998086 PR |
396 | if (!zevpn) |
397 | return 0; | |
398 | ||
399 | mac = zebra_evpn_mac_lookup(zevpn, &mac->macaddr); | |
400 | if (!mac) | |
401 | return 0; | |
402 | ||
b16e8004 DS |
403 | if (IS_ZEBRA_DEBUG_VXLAN) { |
404 | char mac_buf[MAC_BUF_SIZE]; | |
405 | ||
b2998086 | 406 | zlog_debug( |
ef7b8be4 DL |
407 | "%s: duplicate addr mac %pEA flags %slearn count %u host count %u auto recovery expired", |
408 | __func__, &mac->macaddr, | |
b16e8004 DS |
409 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
410 | sizeof(mac_buf)), | |
411 | mac->dad_count, listcount(mac->neigh_list)); | |
412 | } | |
b2998086 PR |
413 | |
414 | /* Remove all IPs as duplicate associcated with this MAC */ | |
415 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
416 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) { | |
417 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
418 | ZEBRA_NEIGH_SET_INACTIVE(nbr); | |
419 | else if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE)) | |
420 | zebra_evpn_rem_neigh_install( | |
421 | zevpn, nbr, false /*was_static*/); | |
422 | } | |
24268cd0 | 423 | |
24268cd0 PR |
424 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); |
425 | nbr->dad_count = 0; | |
426 | nbr->detect_start_time.tv_sec = 0; | |
b2998086 PR |
427 | nbr->dad_dup_detect_time = 0; |
428 | } | |
429 | ||
430 | UNSET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
431 | mac->dad_count = 0; | |
432 | mac->detect_start_time.tv_sec = 0; | |
433 | mac->detect_start_time.tv_usec = 0; | |
434 | mac->dad_dup_detect_time = 0; | |
435 | mac->dad_mac_auto_recovery_timer = NULL; | |
436 | ||
437 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
438 | /* Inform to BGP */ | |
439 | if (zebra_evpn_mac_send_add_to_client(zevpn->vni, &mac->macaddr, | |
440 | mac->flags, mac->loc_seq, | |
441 | mac->es)) | |
442 | return -1; | |
443 | ||
444 | /* Process all neighbors associated with this MAC. */ | |
445 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
446 | 0 /*es_change*/); | |
447 | ||
448 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
449 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
450 | ||
451 | /* Install the entry. */ | |
452 | zebra_evpn_rem_mac_install(zevpn, mac, false /* was_static */); | |
24268cd0 | 453 | } |
b2998086 | 454 | |
24268cd0 PR |
455 | return 0; |
456 | } | |
457 | ||
d9d3455e | 458 | static void zebra_evpn_dup_addr_detect_for_mac(struct zebra_vrf *zvrf, |
3198b2b3 | 459 | struct zebra_mac *mac, |
d9d3455e PR |
460 | struct in_addr vtep_ip, |
461 | bool do_dad, bool *is_dup_detect, | |
462 | bool is_local) | |
24268cd0 | 463 | { |
72de4110 | 464 | struct zebra_neigh *nbr; |
24268cd0 PR |
465 | struct listnode *node = NULL; |
466 | struct timeval elapsed = {0, 0}; | |
24268cd0 PR |
467 | bool reset_params = false; |
468 | ||
b2ee2b71 | 469 | if (!(zebra_evpn_do_dup_addr_detect(zvrf) && do_dad)) |
24268cd0 PR |
470 | return; |
471 | ||
472 | /* MAC is detected as duplicate, | |
473 | * Local MAC event -> hold on advertising to BGP. | |
474 | * Remote MAC event -> hold on installing it. | |
475 | */ | |
476 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { | |
b16e8004 DS |
477 | if (IS_ZEBRA_DEBUG_VXLAN) { |
478 | char mac_buf[MAC_BUF_SIZE]; | |
479 | ||
24268cd0 | 480 | zlog_debug( |
ef7b8be4 DL |
481 | "%s: duplicate addr MAC %pEA flags %sskip update to client, learn count %u recover time %u", |
482 | __func__, &mac->macaddr, | |
b16e8004 DS |
483 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
484 | sizeof(mac_buf)), | |
485 | mac->dad_count, zvrf->dad_freeze_time); | |
486 | } | |
24268cd0 PR |
487 | /* For duplicate MAC do not update |
488 | * client but update neigh due to | |
489 | * this MAC update. | |
490 | */ | |
491 | if (zvrf->dad_freeze) | |
492 | *is_dup_detect = true; | |
493 | ||
494 | return; | |
495 | } | |
496 | ||
497 | /* Check if detection time (M-secs) expired. | |
498 | * Reset learn count and detection start time. | |
499 | */ | |
500 | monotime_since(&mac->detect_start_time, &elapsed); | |
501 | reset_params = (elapsed.tv_sec > zvrf->dad_time); | |
502 | if (is_local && !reset_params) { | |
503 | /* RFC-7432: A PE/VTEP that detects a MAC mobility | |
504 | * event via LOCAL learning starts an M-second timer. | |
505 | * | |
506 | * NOTE: This is the START of the probe with count is | |
507 | * 0 during LOCAL learn event. | |
508 | * (mac->dad_count == 0 || elapsed.tv_sec >= zvrf->dad_time) | |
509 | */ | |
510 | reset_params = !mac->dad_count; | |
511 | } | |
512 | ||
513 | if (reset_params) { | |
b16e8004 DS |
514 | if (IS_ZEBRA_DEBUG_VXLAN) { |
515 | char mac_buf[MAC_BUF_SIZE]; | |
516 | ||
24268cd0 | 517 | zlog_debug( |
ef7b8be4 DL |
518 | "%s: duplicate addr MAC %pEA flags %sdetection time passed, reset learn count %u", |
519 | __func__, &mac->macaddr, | |
b16e8004 DS |
520 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
521 | sizeof(mac_buf)), | |
522 | mac->dad_count); | |
523 | } | |
24268cd0 PR |
524 | |
525 | mac->dad_count = 0; | |
526 | /* Start dup. addr detection (DAD) start time, | |
527 | * ONLY during LOCAL learn. | |
528 | */ | |
529 | if (is_local) | |
530 | monotime(&mac->detect_start_time); | |
531 | ||
532 | } else if (!is_local) { | |
533 | /* For REMOTE MAC, increment detection count | |
534 | * ONLY while in probe window, once window passed, | |
535 | * next local learn event should trigger DAD. | |
536 | */ | |
537 | mac->dad_count++; | |
538 | } | |
539 | ||
540 | /* For LOCAL MAC learn event, once count is reset above via either | |
541 | * initial/start detection time or passed the probe time, the count | |
542 | * needs to be incremented. | |
543 | */ | |
544 | if (is_local) | |
545 | mac->dad_count++; | |
546 | ||
547 | if (mac->dad_count >= zvrf->dad_max_moves) { | |
548 | flog_warn(EC_ZEBRA_DUP_MAC_DETECTED, | |
ef7b8be4 DL |
549 | "VNI %u: MAC %pEA detected as duplicate during %s VTEP %pI4", |
550 | mac->zevpn->vni, &mac->macaddr, | |
24268cd0 | 551 | is_local ? "local update, last" : |
9bcef951 | 552 | "remote update, from", &vtep_ip); |
24268cd0 PR |
553 | |
554 | SET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
555 | ||
556 | /* Capture Duplicate detection time */ | |
557 | mac->dad_dup_detect_time = monotime(NULL); | |
558 | ||
559 | /* Mark all IPs/Neighs as duplicate | |
560 | * associcated with this MAC | |
561 | */ | |
562 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
563 | ||
564 | /* Ony Mark IPs which are Local */ | |
565 | if (!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
566 | continue; | |
567 | ||
568 | SET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
569 | ||
570 | nbr->dad_dup_detect_time = monotime(NULL); | |
571 | ||
572 | flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED, | |
ef7b8be4 DL |
573 | "VNI %u: MAC %pEA IP %pIA detected as duplicate during %s update, inherit duplicate from MAC", |
574 | mac->zevpn->vni, &mac->macaddr, &nbr->ip, | |
24268cd0 PR |
575 | is_local ? "local" : "remote"); |
576 | } | |
577 | ||
578 | /* Start auto recovery timer for this MAC */ | |
579 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
580 | if (zvrf->dad_freeze && zvrf->dad_freeze_time) { | |
b16e8004 DS |
581 | if (IS_ZEBRA_DEBUG_VXLAN) { |
582 | char mac_buf[MAC_BUF_SIZE]; | |
583 | ||
24268cd0 | 584 | zlog_debug( |
ef7b8be4 DL |
585 | "%s: duplicate addr MAC %pEA flags %sauto recovery time %u start", |
586 | __func__, &mac->macaddr, | |
b16e8004 DS |
587 | zebra_evpn_zebra_mac_flag_dump( |
588 | mac, mac_buf, sizeof(mac_buf)), | |
589 | zvrf->dad_freeze_time); | |
590 | } | |
24268cd0 PR |
591 | |
592 | thread_add_timer(zrouter.master, | |
b2998086 | 593 | zebra_evpn_dad_mac_auto_recovery_exp, |
24268cd0 PR |
594 | mac, zvrf->dad_freeze_time, |
595 | &mac->dad_mac_auto_recovery_timer); | |
596 | } | |
597 | ||
598 | /* In case of local update, do not inform to client (BGPd), | |
599 | * upd_neigh for neigh sequence change. | |
600 | */ | |
601 | if (zvrf->dad_freeze) | |
602 | *is_dup_detect = true; | |
603 | } | |
604 | } | |
605 | ||
b2998086 PR |
606 | /* |
607 | * Print a specific MAC entry. | |
608 | */ | |
3198b2b3 | 609 | void zebra_evpn_print_mac(struct zebra_mac *mac, void *ctxt, json_object *json) |
24268cd0 | 610 | { |
b2998086 | 611 | struct vty *vty; |
72de4110 | 612 | struct zebra_neigh *n = NULL; |
b2998086 PR |
613 | struct listnode *node = NULL; |
614 | char buf1[ETHER_ADDR_STRLEN]; | |
615 | char buf2[INET6_ADDRSTRLEN]; | |
9bcef951 | 616 | char addr_buf[PREFIX_STRLEN]; |
b2998086 PR |
617 | struct zebra_vrf *zvrf; |
618 | struct timeval detect_start_time = {0, 0}; | |
619 | char timebuf[MONOTIME_STRLEN]; | |
620 | char thread_buf[THREAD_TIMER_STRLEN]; | |
f1dbb1c7 DS |
621 | time_t uptime; |
622 | char up_str[MONOTIME_STRLEN]; | |
24268cd0 | 623 | |
b2998086 PR |
624 | zvrf = zebra_vrf_get_evpn(); |
625 | if (!zvrf) | |
24268cd0 PR |
626 | return; |
627 | ||
b2998086 PR |
628 | vty = (struct vty *)ctxt; |
629 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
24268cd0 | 630 | |
f1dbb1c7 DS |
631 | uptime = monotime(NULL); |
632 | uptime -= mac->uptime; | |
633 | ||
634 | frrtime_to_interval(uptime, up_str, sizeof(up_str)); | |
635 | ||
b2998086 PR |
636 | if (json) { |
637 | json_object *json_mac = json_object_new_object(); | |
24268cd0 | 638 | |
b2998086 PR |
639 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
640 | struct interface *ifp; | |
641 | vlanid_t vid; | |
24268cd0 | 642 | |
b2998086 PR |
643 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
644 | json_object_string_add(json_mac, "type", "local"); | |
645 | if (ifp) { | |
646 | json_object_string_add(json_mac, "intf", | |
647 | ifp->name); | |
648 | json_object_int_add(json_mac, "ifindex", | |
649 | ifp->ifindex); | |
650 | } | |
651 | if (vid) | |
652 | json_object_int_add(json_mac, "vlan", vid); | |
653 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
654 | json_object_string_add(json_mac, "type", "remote"); | |
655 | json_object_string_add( | |
656 | json_mac, "remoteVtep", | |
9bcef951 MS |
657 | inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip, |
658 | addr_buf, sizeof(addr_buf))); | |
b2998086 PR |
659 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) |
660 | json_object_string_add(json_mac, "type", "auto"); | |
24268cd0 | 661 | |
b2998086 PR |
662 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) |
663 | json_object_boolean_true_add(json_mac, "stickyMac"); | |
24268cd0 | 664 | |
243b74ed AK |
665 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) |
666 | json_object_boolean_true_add(json_mac, "sviMac"); | |
667 | ||
b2998086 PR |
668 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) |
669 | json_object_boolean_true_add(json_mac, | |
670 | "defaultGateway"); | |
24268cd0 | 671 | |
b2998086 PR |
672 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) |
673 | json_object_boolean_true_add(json_mac, | |
674 | "remoteGatewayMac"); | |
24268cd0 | 675 | |
f1dbb1c7 | 676 | json_object_string_add(json_mac, "uptime", up_str); |
b2998086 PR |
677 | json_object_int_add(json_mac, "localSequence", mac->loc_seq); |
678 | json_object_int_add(json_mac, "remoteSequence", mac->rem_seq); | |
24268cd0 | 679 | |
b2998086 PR |
680 | json_object_int_add(json_mac, "detectionCount", mac->dad_count); |
681 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
682 | json_object_boolean_true_add(json_mac, "isDuplicate"); | |
683 | else | |
684 | json_object_boolean_false_add(json_mac, "isDuplicate"); | |
24268cd0 | 685 | |
b2998086 PR |
686 | json_object_int_add(json_mac, "syncNeighCount", |
687 | mac->sync_neigh_cnt); | |
688 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) | |
689 | json_object_boolean_true_add(json_mac, "localInactive"); | |
690 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY)) | |
691 | json_object_boolean_true_add(json_mac, "peerProxy"); | |
692 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
693 | json_object_boolean_true_add(json_mac, "peerActive"); | |
694 | if (mac->hold_timer) | |
695 | json_object_string_add( | |
696 | json_mac, "peerActiveHold", | |
697 | thread_timer_to_hhmmss(thread_buf, | |
698 | sizeof(thread_buf), | |
699 | mac->hold_timer)); | |
700 | if (mac->es) | |
701 | json_object_string_add(json_mac, "esi", | |
702 | mac->es->esi_str); | |
703 | /* print all the associated neigh */ | |
704 | if (!listcount(mac->neigh_list)) | |
705 | json_object_string_add(json_mac, "neighbors", "none"); | |
706 | else { | |
707 | json_object *json_active_nbrs = json_object_new_array(); | |
708 | json_object *json_inactive_nbrs = | |
709 | json_object_new_array(); | |
710 | json_object *json_nbrs = json_object_new_object(); | |
24268cd0 | 711 | |
b2998086 PR |
712 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { |
713 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) | |
714 | json_object_array_add( | |
715 | json_active_nbrs, | |
716 | json_object_new_string( | |
717 | ipaddr2str( | |
718 | &n->ip, buf2, | |
719 | sizeof(buf2)))); | |
720 | else | |
721 | json_object_array_add( | |
722 | json_inactive_nbrs, | |
723 | json_object_new_string( | |
724 | ipaddr2str( | |
725 | &n->ip, buf2, | |
726 | sizeof(buf2)))); | |
727 | } | |
24268cd0 | 728 | |
b2998086 PR |
729 | json_object_object_add(json_nbrs, "active", |
730 | json_active_nbrs); | |
731 | json_object_object_add(json_nbrs, "inactive", | |
732 | json_inactive_nbrs); | |
733 | json_object_object_add(json_mac, "neighbors", | |
734 | json_nbrs); | |
24268cd0 | 735 | } |
24268cd0 | 736 | |
b2998086 PR |
737 | json_object_object_add(json, buf1, json_mac); |
738 | } else { | |
739 | vty_out(vty, "MAC: %s\n", buf1); | |
24268cd0 | 740 | |
b2998086 PR |
741 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
742 | struct interface *ifp; | |
743 | vlanid_t vid; | |
24268cd0 | 744 | |
b2998086 | 745 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
24268cd0 | 746 | |
b2998086 PR |
747 | if (mac->es) |
748 | vty_out(vty, " ESI: %s\n", mac->es->esi_str); | |
24268cd0 | 749 | |
b2998086 PR |
750 | if (ifp) |
751 | vty_out(vty, " Intf: %s(%u)", ifp->name, | |
752 | ifp->ifindex); | |
753 | else | |
754 | vty_out(vty, " Intf: -"); | |
755 | vty_out(vty, " VLAN: %u", vid); | |
756 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
757 | if (mac->es) | |
758 | vty_out(vty, " Remote ES: %s", | |
759 | mac->es->esi_str); | |
760 | else | |
9bcef951 MS |
761 | vty_out(vty, " Remote VTEP: %pI4", |
762 | &mac->fwd_info.r_vtep_ip); | |
b2998086 PR |
763 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { |
764 | vty_out(vty, " Auto Mac "); | |
765 | } | |
24268cd0 | 766 | |
b2998086 PR |
767 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) |
768 | vty_out(vty, " Sticky Mac "); | |
24268cd0 | 769 | |
243b74ed AK |
770 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) |
771 | vty_out(vty, " SVI-Mac "); | |
772 | ||
b2998086 PR |
773 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) |
774 | vty_out(vty, " Default-gateway Mac "); | |
775 | ||
776 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) | |
777 | vty_out(vty, " Remote-gateway Mac "); | |
778 | ||
779 | vty_out(vty, "\n"); | |
780 | vty_out(vty, " Sync-info: neigh#: %u", mac->sync_neigh_cnt); | |
781 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) | |
24268cd0 | 782 | vty_out(vty, " local-inactive"); |
b2998086 | 783 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY)) |
24268cd0 | 784 | vty_out(vty, " peer-proxy"); |
b2998086 | 785 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) |
24268cd0 | 786 | vty_out(vty, " peer-active"); |
b2998086 | 787 | if (mac->hold_timer) |
24268cd0 | 788 | vty_out(vty, " (ht: %s)", |
b2998086 PR |
789 | thread_timer_to_hhmmss(thread_buf, |
790 | sizeof(thread_buf), | |
791 | mac->hold_timer)); | |
792 | vty_out(vty, "\n"); | |
f1dbb1c7 | 793 | vty_out(vty, " Local Seq: %u Remote Seq: %u\n", mac->loc_seq, |
b2998086 | 794 | mac->rem_seq); |
f1dbb1c7 | 795 | vty_out(vty, " Uptime: %s\n", up_str); |
24268cd0 | 796 | |
b2998086 | 797 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { |
24268cd0 | 798 | vty_out(vty, " Duplicate, detected at %s", |
b2998086 | 799 | time_to_string(mac->dad_dup_detect_time, |
24268cd0 | 800 | timebuf)); |
b2998086 PR |
801 | } else if (mac->dad_count) { |
802 | monotime_since(&mac->detect_start_time, | |
24268cd0 PR |
803 | &detect_start_time); |
804 | if (detect_start_time.tv_sec <= zvrf->dad_time) { | |
b2998086 | 805 | time_to_string(mac->detect_start_time.tv_sec, |
24268cd0 PR |
806 | timebuf); |
807 | vty_out(vty, | |
808 | " Duplicate detection started at %s, detection count %u\n", | |
b2998086 | 809 | timebuf, mac->dad_count); |
24268cd0 PR |
810 | } |
811 | } | |
24268cd0 | 812 | |
b2998086 PR |
813 | /* print all the associated neigh */ |
814 | vty_out(vty, " Neighbors:\n"); | |
815 | if (!listcount(mac->neigh_list)) | |
816 | vty_out(vty, " No Neighbors\n"); | |
817 | else { | |
818 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { | |
819 | vty_out(vty, " %s %s\n", | |
820 | ipaddr2str(&n->ip, buf2, sizeof(buf2)), | |
821 | (IS_ZEBRA_NEIGH_ACTIVE(n) | |
822 | ? "Active" | |
823 | : "Inactive")); | |
824 | } | |
825 | } | |
24268cd0 | 826 | |
b2998086 | 827 | vty_out(vty, "\n"); |
24268cd0 PR |
828 | } |
829 | } | |
830 | ||
3198b2b3 | 831 | static char *zebra_evpn_print_mac_flags(struct zebra_mac *mac, char *flags_buf, |
700cae76 | 832 | size_t flags_buf_sz) |
24268cd0 | 833 | { |
b2998086 | 834 | snprintf(flags_buf, flags_buf_sz, "%s%s%s%s", |
00a7710c AK |
835 | mac->sync_neigh_cnt ? "N" : "", |
836 | (mac->flags & ZEBRA_MAC_ES_PEER_ACTIVE) ? "P" : "", | |
837 | (mac->flags & ZEBRA_MAC_ES_PEER_PROXY) ? "X" : "", | |
838 | (mac->flags & ZEBRA_MAC_LOCAL_INACTIVE) ? "I" : ""); | |
24268cd0 PR |
839 | |
840 | return flags_buf; | |
841 | } | |
842 | ||
843 | /* | |
b2998086 | 844 | * Print MAC hash entry - called for display of all MACs. |
24268cd0 | 845 | */ |
b2998086 | 846 | void zebra_evpn_print_mac_hash(struct hash_bucket *bucket, void *ctxt) |
24268cd0 PR |
847 | { |
848 | struct vty *vty; | |
b2998086 | 849 | json_object *json_mac_hdr = NULL, *json_mac = NULL; |
3198b2b3 | 850 | struct zebra_mac *mac; |
24268cd0 | 851 | char buf1[ETHER_ADDR_STRLEN]; |
9bcef951 | 852 | char addr_buf[PREFIX_STRLEN]; |
b2998086 | 853 | struct mac_walk_ctx *wctx = ctxt; |
24268cd0 PR |
854 | char flags_buf[6]; |
855 | ||
856 | vty = wctx->vty; | |
b2998086 | 857 | json_mac_hdr = wctx->json; |
3198b2b3 | 858 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
859 | |
860 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
861 | ||
862 | if (json_mac_hdr) | |
863 | json_mac = json_object_new_object(); | |
24268cd0 | 864 | |
b2998086 PR |
865 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
866 | struct interface *ifp; | |
867 | vlanid_t vid; | |
24268cd0 | 868 | |
b2998086 | 869 | if (wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) |
24268cd0 PR |
870 | return; |
871 | ||
b2998086 PR |
872 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
873 | if (json_mac_hdr == NULL) { | |
874 | vty_out(vty, "%-17s %-6s %-5s %-30s", buf1, "local", | |
875 | zebra_evpn_print_mac_flags(mac, flags_buf, | |
876 | sizeof(flags_buf)), | |
877 | ifp ? ifp->name : "-"); | |
878 | } else { | |
879 | json_object_string_add(json_mac, "type", "local"); | |
880 | if (ifp) | |
881 | json_object_string_add(json_mac, "intf", | |
882 | ifp->name); | |
883 | } | |
884 | if (vid) { | |
885 | if (json_mac_hdr == NULL) | |
886 | vty_out(vty, " %-5u", vid); | |
887 | else | |
888 | json_object_int_add(json_mac, "vlan", vid); | |
889 | } else /* No vid? fill out the space */ | |
890 | if (json_mac_hdr == NULL) | |
891 | vty_out(vty, " %-5s", ""); | |
892 | if (json_mac_hdr == NULL) { | |
893 | vty_out(vty, " %u/%u", mac->loc_seq, mac->rem_seq); | |
894 | vty_out(vty, "\n"); | |
24268cd0 | 895 | } else { |
b2998086 PR |
896 | json_object_int_add(json_mac, "localSequence", |
897 | mac->loc_seq); | |
898 | json_object_int_add(json_mac, "remoteSequence", | |
899 | mac->rem_seq); | |
900 | json_object_int_add(json_mac, "detectionCount", | |
901 | mac->dad_count); | |
902 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
903 | json_object_boolean_true_add(json_mac, | |
24268cd0 PR |
904 | "isDuplicate"); |
905 | else | |
b2998086 | 906 | json_object_boolean_false_add(json_mac, |
24268cd0 | 907 | "isDuplicate"); |
b2998086 | 908 | json_object_object_add(json_mac_hdr, buf1, json_mac); |
24268cd0 | 909 | } |
b2998086 | 910 | |
24268cd0 | 911 | wctx->count++; |
b2998086 PR |
912 | |
913 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
914 | ||
915 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
916 | && !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, | |
917 | &wctx->r_vtep_ip)) | |
24268cd0 PR |
918 | return; |
919 | ||
b2998086 PR |
920 | if (json_mac_hdr == NULL) { |
921 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
922 | && (wctx->count == 0)) { | |
923 | vty_out(vty, "\nVNI %u\n\n", wctx->zevpn->vni); | |
924 | vty_out(vty, "%-17s %-6s %-5s%-30s %-5s %s\n", | |
925 | "MAC", "Type", "Flags", | |
926 | "Intf/Remote ES/VTEP", "VLAN", | |
927 | "Seq #'s"); | |
24268cd0 | 928 | } |
9bcef951 MS |
929 | if (mac->es == NULL) |
930 | inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip, | |
931 | addr_buf, sizeof(addr_buf)); | |
932 | ||
b2998086 PR |
933 | vty_out(vty, "%-17s %-6s %-5s %-30s %-5s %u/%u\n", buf1, |
934 | "remote", | |
935 | zebra_evpn_print_mac_flags(mac, flags_buf, | |
9bcef951 MS |
936 | sizeof(flags_buf)), |
937 | mac->es ? mac->es->esi_str : addr_buf, | |
b2998086 PR |
938 | "", mac->loc_seq, mac->rem_seq); |
939 | } else { | |
940 | json_object_string_add(json_mac, "type", "remote"); | |
941 | json_object_string_add( | |
942 | json_mac, "remoteVtep", | |
9bcef951 MS |
943 | inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip, |
944 | addr_buf, sizeof(addr_buf))); | |
b2998086 PR |
945 | json_object_object_add(json_mac_hdr, buf1, json_mac); |
946 | json_object_int_add(json_mac, "localSequence", | |
947 | mac->loc_seq); | |
948 | json_object_int_add(json_mac, "remoteSequence", | |
949 | mac->rem_seq); | |
950 | json_object_int_add(json_mac, "detectionCount", | |
951 | mac->dad_count); | |
952 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
953 | json_object_boolean_true_add(json_mac, | |
954 | "isDuplicate"); | |
955 | else | |
956 | json_object_boolean_false_add(json_mac, | |
957 | "isDuplicate"); | |
958 | } | |
24268cd0 | 959 | |
b2998086 PR |
960 | wctx->count++; |
961 | } | |
24268cd0 PR |
962 | } |
963 | ||
964 | /* | |
b2998086 | 965 | * Print MAC hash entry in detail - called for display of all MACs. |
24268cd0 | 966 | */ |
b2998086 | 967 | void zebra_evpn_print_mac_hash_detail(struct hash_bucket *bucket, void *ctxt) |
24268cd0 | 968 | { |
b2998086 PR |
969 | struct vty *vty; |
970 | json_object *json_mac_hdr = NULL; | |
3198b2b3 | 971 | struct zebra_mac *mac; |
b2998086 PR |
972 | struct mac_walk_ctx *wctx = ctxt; |
973 | char buf1[ETHER_ADDR_STRLEN]; | |
24268cd0 | 974 | |
b2998086 PR |
975 | vty = wctx->vty; |
976 | json_mac_hdr = wctx->json; | |
3198b2b3 | 977 | mac = (struct zebra_mac *)bucket->data; |
b2998086 | 978 | if (!mac) |
24268cd0 PR |
979 | return; |
980 | ||
b2998086 PR |
981 | wctx->count++; |
982 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
24268cd0 | 983 | |
b2998086 | 984 | zebra_evpn_print_mac(mac, vty, json_mac_hdr); |
24268cd0 PR |
985 | } |
986 | ||
987 | /* | |
b2998086 | 988 | * Inform BGP about local MACIP. |
24268cd0 | 989 | */ |
7f7e49d1 MS |
990 | int zebra_evpn_macip_send_msg_to_client(vni_t vni, |
991 | const struct ethaddr *macaddr, | |
1a3bd37f | 992 | const struct ipaddr *ip, uint8_t flags, |
b2998086 PR |
993 | uint32_t seq, int state, |
994 | struct zebra_evpn_es *es, uint16_t cmd) | |
24268cd0 | 995 | { |
b2998086 PR |
996 | int ipa_len; |
997 | struct zserv *client = NULL; | |
998 | struct stream *s = NULL; | |
999 | esi_t *esi = es ? &es->esi : zero_esi; | |
24268cd0 | 1000 | |
b2998086 PR |
1001 | client = zserv_find_client(ZEBRA_ROUTE_BGP, 0); |
1002 | /* BGP may not be running. */ | |
1003 | if (!client) | |
1004 | return 0; | |
24268cd0 | 1005 | |
b2998086 | 1006 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); |
24268cd0 | 1007 | |
b2998086 PR |
1008 | zclient_create_header(s, cmd, zebra_vrf_get_evpn_id()); |
1009 | stream_putl(s, vni); | |
1010 | stream_put(s, macaddr->octet, ETH_ALEN); | |
1011 | if (ip) { | |
1012 | ipa_len = 0; | |
1013 | if (IS_IPADDR_V4(ip)) | |
1014 | ipa_len = IPV4_MAX_BYTELEN; | |
1015 | else if (IS_IPADDR_V6(ip)) | |
1016 | ipa_len = IPV6_MAX_BYTELEN; | |
24268cd0 | 1017 | |
b2998086 PR |
1018 | stream_putl(s, ipa_len); /* IP address length */ |
1019 | if (ipa_len) | |
1020 | stream_put(s, &ip->ip.addr, ipa_len); /* IP address */ | |
1021 | } else | |
1022 | stream_putl(s, 0); /* Just MAC. */ | |
24268cd0 | 1023 | |
b2998086 PR |
1024 | if (cmd == ZEBRA_MACIP_ADD) { |
1025 | stream_putc(s, flags); /* sticky mac/gateway mac */ | |
1026 | stream_putl(s, seq); /* sequence number */ | |
1027 | stream_put(s, esi, sizeof(esi_t)); | |
24268cd0 | 1028 | } else { |
b2998086 PR |
1029 | stream_putl(s, state); /* state - active/inactive */ |
1030 | } | |
24268cd0 | 1031 | |
24268cd0 | 1032 | |
b2998086 PR |
1033 | /* Write packet size. */ |
1034 | stream_putw_at(s, 0, stream_get_endp(s)); | |
24268cd0 | 1035 | |
bf902d4c DS |
1036 | if (IS_ZEBRA_DEBUG_VXLAN) { |
1037 | char flag_buf[MACIP_BUF_SIZE]; | |
1038 | ||
b2998086 | 1039 | zlog_debug( |
ef7b8be4 | 1040 | "Send MACIP %s f %s MAC %pEA IP %pIA seq %u L2-VNI %u ESI %s to %s", |
bf902d4c DS |
1041 | (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1042 | zclient_evpn_dump_macip_flags(flags, flag_buf, | |
1043 | sizeof(flag_buf)), | |
ef7b8be4 | 1044 | macaddr, ip, seq, vni, |
b2998086 PR |
1045 | es ? es->esi_str : "-", |
1046 | zebra_route_string(client->proto)); | |
bf902d4c | 1047 | } |
24268cd0 | 1048 | |
b2998086 PR |
1049 | if (cmd == ZEBRA_MACIP_ADD) |
1050 | client->macipadd_cnt++; | |
1051 | else | |
1052 | client->macipdel_cnt++; | |
24268cd0 | 1053 | |
b2998086 PR |
1054 | return zserv_send_message(client, s); |
1055 | } | |
24268cd0 | 1056 | |
b2998086 PR |
1057 | static unsigned int mac_hash_keymake(const void *p) |
1058 | { | |
3198b2b3 | 1059 | const struct zebra_mac *pmac = p; |
b2998086 | 1060 | const void *pnt = (void *)pmac->macaddr.octet; |
24268cd0 | 1061 | |
b2998086 | 1062 | return jhash(pnt, ETH_ALEN, 0xa5a5a55a); |
24268cd0 PR |
1063 | } |
1064 | ||
1065 | /* | |
b2998086 | 1066 | * Compare two MAC addresses. |
24268cd0 | 1067 | */ |
b2998086 | 1068 | static bool mac_cmp(const void *p1, const void *p2) |
24268cd0 | 1069 | { |
3198b2b3 DS |
1070 | const struct zebra_mac *pmac1 = p1; |
1071 | const struct zebra_mac *pmac2 = p2; | |
24268cd0 | 1072 | |
b2998086 PR |
1073 | if (pmac1 == NULL && pmac2 == NULL) |
1074 | return true; | |
24268cd0 | 1075 | |
b2998086 PR |
1076 | if (pmac1 == NULL || pmac2 == NULL) |
1077 | return false; | |
24268cd0 | 1078 | |
b2998086 PR |
1079 | return (memcmp(pmac1->macaddr.octet, pmac2->macaddr.octet, ETH_ALEN) |
1080 | == 0); | |
1081 | } | |
24268cd0 | 1082 | |
b2998086 PR |
1083 | /* |
1084 | * Callback to allocate MAC hash entry. | |
1085 | */ | |
1086 | static void *zebra_evpn_mac_alloc(void *p) | |
1087 | { | |
3198b2b3 DS |
1088 | const struct zebra_mac *tmp_mac = p; |
1089 | struct zebra_mac *mac; | |
24268cd0 | 1090 | |
3198b2b3 | 1091 | mac = XCALLOC(MTYPE_MAC, sizeof(struct zebra_mac)); |
b2998086 | 1092 | *mac = *tmp_mac; |
24268cd0 | 1093 | |
b2998086 PR |
1094 | return ((void *)mac); |
1095 | } | |
24268cd0 | 1096 | |
b2998086 PR |
1097 | /* |
1098 | * Add MAC entry. | |
1099 | */ | |
3198b2b3 DS |
1100 | struct zebra_mac *zebra_evpn_mac_add(struct zebra_evpn *zevpn, |
1101 | const struct ethaddr *macaddr) | |
b2998086 | 1102 | { |
3198b2b3 DS |
1103 | struct zebra_mac tmp_mac; |
1104 | struct zebra_mac *mac = NULL; | |
24268cd0 | 1105 | |
3198b2b3 | 1106 | memset(&tmp_mac, 0, sizeof(struct zebra_mac)); |
b2998086 PR |
1107 | memcpy(&tmp_mac.macaddr, macaddr, ETH_ALEN); |
1108 | mac = hash_get(zevpn->mac_table, &tmp_mac, zebra_evpn_mac_alloc); | |
1109 | assert(mac); | |
24268cd0 | 1110 | |
b2998086 PR |
1111 | mac->zevpn = zevpn; |
1112 | mac->dad_mac_auto_recovery_timer = NULL; | |
24268cd0 | 1113 | |
b2998086 PR |
1114 | mac->neigh_list = list_new(); |
1115 | mac->neigh_list->cmp = neigh_list_cmp; | |
24268cd0 | 1116 | |
f1dbb1c7 | 1117 | mac->uptime = monotime(NULL); |
b2998086 | 1118 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
b16e8004 | 1119 | char mac_buf[MAC_BUF_SIZE]; |
24268cd0 | 1120 | |
ef7b8be4 DL |
1121 | zlog_debug("%s: MAC %pEA flags %s", __func__, |
1122 | &mac->macaddr, | |
b16e8004 DS |
1123 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1124 | sizeof(mac_buf))); | |
b2998086 PR |
1125 | } |
1126 | return mac; | |
24268cd0 PR |
1127 | } |
1128 | ||
1129 | /* | |
b2998086 | 1130 | * Delete MAC entry. |
24268cd0 | 1131 | */ |
3198b2b3 | 1132 | int zebra_evpn_mac_del(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 1133 | { |
3198b2b3 | 1134 | struct zebra_mac *tmp_mac; |
24268cd0 | 1135 | |
b2998086 | 1136 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
b16e8004 | 1137 | char mac_buf[MAC_BUF_SIZE]; |
b2998086 | 1138 | |
ef7b8be4 DL |
1139 | zlog_debug("%s: MAC %pEA flags %s", __func__, |
1140 | &mac->macaddr, | |
b16e8004 DS |
1141 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1142 | sizeof(mac_buf))); | |
24268cd0 PR |
1143 | } |
1144 | ||
46bf266c AK |
1145 | /* If the MAC is freed before the neigh we will end up |
1146 | * with a stale pointer against the neigh | |
1147 | */ | |
1148 | if (!list_isempty(mac->neigh_list)) | |
1149 | zlog_warn("%s: MAC %pEA flags 0x%x neigh list not empty %d", | |
1150 | __func__, &mac->macaddr, mac->flags, | |
1151 | listcount(mac->neigh_list)); | |
1152 | ||
b2998086 PR |
1153 | /* force de-ref any ES entry linked to the MAC */ |
1154 | zebra_evpn_es_mac_deref_entry(mac); | |
24268cd0 | 1155 | |
8b07f173 AK |
1156 | /* remove links to the destination access port */ |
1157 | zebra_evpn_mac_clear_fwd_info(mac); | |
1158 | ||
b2998086 PR |
1159 | /* Cancel proxy hold timer */ |
1160 | zebra_evpn_mac_stop_hold_timer(mac); | |
24268cd0 | 1161 | |
b2998086 PR |
1162 | /* Cancel auto recovery */ |
1163 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
24268cd0 | 1164 | |
b2998086 | 1165 | list_delete(&mac->neigh_list); |
24268cd0 | 1166 | |
b2998086 PR |
1167 | /* Free the VNI hash entry and allocated memory. */ |
1168 | tmp_mac = hash_release(zevpn->mac_table, mac); | |
1169 | XFREE(MTYPE_MAC, tmp_mac); | |
24268cd0 | 1170 | |
b2998086 PR |
1171 | return 0; |
1172 | } | |
24268cd0 | 1173 | |
b2998086 | 1174 | static bool zebra_evpn_check_mac_del_from_db(struct mac_walk_ctx *wctx, |
3198b2b3 | 1175 | struct zebra_mac *mac) |
b2998086 PR |
1176 | { |
1177 | if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_LOCAL)) | |
1178 | return true; | |
1179 | else if ((wctx->flags & DEL_REMOTE_MAC) | |
1180 | && (mac->flags & ZEBRA_MAC_REMOTE)) | |
1181 | return true; | |
1182 | else if ((wctx->flags & DEL_REMOTE_MAC_FROM_VTEP) | |
1183 | && (mac->flags & ZEBRA_MAC_REMOTE) | |
1184 | && IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &wctx->r_vtep_ip)) | |
1185 | return true; | |
1186 | else if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_AUTO) | |
1187 | && !listcount(mac->neigh_list)) { | |
1188 | if (IS_ZEBRA_DEBUG_VXLAN) { | |
b16e8004 | 1189 | char mac_buf[MAC_BUF_SIZE]; |
24268cd0 | 1190 | |
24268cd0 | 1191 | zlog_debug( |
ef7b8be4 DL |
1192 | "%s: Del MAC %pEA flags %s", __func__, |
1193 | &mac->macaddr, | |
b16e8004 DS |
1194 | zebra_evpn_zebra_mac_flag_dump( |
1195 | mac, mac_buf, sizeof(mac_buf))); | |
b2998086 PR |
1196 | } |
1197 | wctx->uninstall = 0; | |
24268cd0 | 1198 | |
b2998086 PR |
1199 | return true; |
1200 | } | |
24268cd0 | 1201 | |
b2998086 PR |
1202 | return false; |
1203 | } | |
24268cd0 | 1204 | |
b2998086 PR |
1205 | /* |
1206 | * Free MAC hash entry (callback) | |
1207 | */ | |
1208 | static void zebra_evpn_mac_del_hash_entry(struct hash_bucket *bucket, void *arg) | |
1209 | { | |
1210 | struct mac_walk_ctx *wctx = arg; | |
3198b2b3 | 1211 | struct zebra_mac *mac = bucket->data; |
24268cd0 | 1212 | |
b2998086 PR |
1213 | if (zebra_evpn_check_mac_del_from_db(wctx, mac)) { |
1214 | if (wctx->upd_client && (mac->flags & ZEBRA_MAC_LOCAL)) { | |
1215 | zebra_evpn_mac_send_del_to_client(wctx->zevpn->vni, | |
1216 | &mac->macaddr, | |
1217 | mac->flags, false); | |
1218 | } | |
1219 | if (wctx->uninstall) { | |
1220 | if (zebra_evpn_mac_is_static(mac)) | |
1221 | zebra_evpn_sync_mac_dp_install( | |
1222 | mac, false /* set_inactive */, | |
1223 | true /* force_clear_static */, | |
1224 | __func__); | |
24268cd0 | 1225 | |
b2998086 | 1226 | if (mac->flags & ZEBRA_MAC_REMOTE) |
f3722826 AK |
1227 | zebra_evpn_rem_mac_uninstall(wctx->zevpn, mac, |
1228 | false /*force*/); | |
24268cd0 | 1229 | } |
b2998086 PR |
1230 | |
1231 | zebra_evpn_mac_del(wctx->zevpn, mac); | |
24268cd0 PR |
1232 | } |
1233 | ||
24268cd0 PR |
1234 | return; |
1235 | } | |
1236 | ||
24268cd0 | 1237 | /* |
b2998086 | 1238 | * Delete all MAC entries for this EVPN. |
24268cd0 | 1239 | */ |
f6371c34 DS |
1240 | void zebra_evpn_mac_del_all(struct zebra_evpn *zevpn, int uninstall, |
1241 | int upd_client, uint32_t flags) | |
24268cd0 | 1242 | { |
b2998086 | 1243 | struct mac_walk_ctx wctx; |
24268cd0 | 1244 | |
b2998086 | 1245 | if (!zevpn->mac_table) |
24268cd0 PR |
1246 | return; |
1247 | ||
b2998086 PR |
1248 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); |
1249 | wctx.zevpn = zevpn; | |
1250 | wctx.uninstall = uninstall; | |
1251 | wctx.upd_client = upd_client; | |
1252 | wctx.flags = flags; | |
24268cd0 | 1253 | |
b2998086 PR |
1254 | hash_iterate(zevpn->mac_table, zebra_evpn_mac_del_hash_entry, &wctx); |
1255 | } | |
24268cd0 | 1256 | |
b2998086 PR |
1257 | /* |
1258 | * Look up MAC hash entry. | |
1259 | */ | |
3198b2b3 DS |
1260 | struct zebra_mac *zebra_evpn_mac_lookup(struct zebra_evpn *zevpn, |
1261 | const struct ethaddr *mac) | |
b2998086 | 1262 | { |
3198b2b3 DS |
1263 | struct zebra_mac tmp; |
1264 | struct zebra_mac *pmac; | |
24268cd0 | 1265 | |
b2998086 PR |
1266 | memset(&tmp, 0, sizeof(tmp)); |
1267 | memcpy(&tmp.macaddr, mac, ETH_ALEN); | |
1268 | pmac = hash_lookup(zevpn->mac_table, &tmp); | |
24268cd0 | 1269 | |
b2998086 PR |
1270 | return pmac; |
1271 | } | |
24268cd0 | 1272 | |
b2998086 PR |
1273 | /* |
1274 | * Inform BGP about local MAC addition. | |
1275 | */ | |
1a3bd37f | 1276 | int zebra_evpn_mac_send_add_to_client(vni_t vni, const struct ethaddr *macaddr, |
b2998086 PR |
1277 | uint32_t mac_flags, uint32_t seq, |
1278 | struct zebra_evpn_es *es) | |
1279 | { | |
1280 | uint8_t flags = 0; | |
24268cd0 | 1281 | |
b2998086 PR |
1282 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_LOCAL_INACTIVE)) { |
1283 | /* host reachability has not been verified locally */ | |
24268cd0 | 1284 | |
b2998086 PR |
1285 | /* if no ES peer is claiming reachability we can't advertise the |
1286 | * entry | |
1287 | */ | |
1288 | if (!CHECK_FLAG(mac_flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1289 | return 0; | |
24268cd0 | 1290 | |
b2998086 PR |
1291 | /* ES peers are claiming reachability; we will |
1292 | * advertise the entry but with a proxy flag | |
24268cd0 | 1293 | */ |
b2998086 PR |
1294 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT); |
1295 | } | |
24268cd0 | 1296 | |
b2998086 PR |
1297 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_STICKY)) |
1298 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
1299 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_DEF_GW)) | |
1300 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
24268cd0 | 1301 | |
b2998086 PR |
1302 | return zebra_evpn_macip_send_msg_to_client(vni, macaddr, NULL, flags, |
1303 | seq, ZEBRA_NEIGH_ACTIVE, es, | |
1304 | ZEBRA_MACIP_ADD); | |
1305 | } | |
24268cd0 | 1306 | |
b2998086 PR |
1307 | /* |
1308 | * Inform BGP about local MAC deletion. | |
1309 | */ | |
1a3bd37f | 1310 | int zebra_evpn_mac_send_del_to_client(vni_t vni, const struct ethaddr *macaddr, |
b2998086 PR |
1311 | uint32_t flags, bool force) |
1312 | { | |
1313 | if (!force) { | |
1314 | if (CHECK_FLAG(flags, ZEBRA_MAC_LOCAL_INACTIVE) | |
1315 | && !CHECK_FLAG(flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1316 | /* the host was not advertised - nothing to delete */ | |
1317 | return 0; | |
24268cd0 PR |
1318 | } |
1319 | ||
b2998086 PR |
1320 | return zebra_evpn_macip_send_msg_to_client( |
1321 | vni, macaddr, NULL, 0 /* flags */, 0 /* seq */, | |
1322 | ZEBRA_NEIGH_ACTIVE, NULL, ZEBRA_MACIP_DEL); | |
24268cd0 PR |
1323 | } |
1324 | ||
1325 | /* | |
b2998086 | 1326 | * wrapper to create a MAC hash table |
24268cd0 | 1327 | */ |
b2998086 | 1328 | struct hash *zebra_mac_db_create(const char *desc) |
24268cd0 | 1329 | { |
da55bcbc | 1330 | return hash_create_size(8, mac_hash_keymake, mac_cmp, desc); |
24268cd0 PR |
1331 | } |
1332 | ||
b2998086 | 1333 | /* program sync mac flags in the dataplane */ |
3198b2b3 | 1334 | int zebra_evpn_sync_mac_dp_install(struct zebra_mac *mac, bool set_inactive, |
15400f95 | 1335 | bool force_clear_static, const char *caller) |
24268cd0 | 1336 | { |
b2998086 PR |
1337 | struct interface *ifp; |
1338 | bool sticky; | |
1339 | bool set_static; | |
f6371c34 | 1340 | struct zebra_evpn *zevpn = mac->zevpn; |
b2998086 PR |
1341 | vlanid_t vid; |
1342 | struct zebra_if *zif; | |
1343 | struct interface *br_ifp; | |
24268cd0 | 1344 | |
09de6e45 AK |
1345 | /* If the ES-EVI doesn't exist defer install. When the ES-EVI is |
1346 | * created we will attempt to install the mac entry again | |
1347 | */ | |
1348 | if (mac->es) { | |
1349 | struct zebra_evpn_es_evi *es_evi; | |
1350 | ||
1351 | es_evi = zebra_evpn_es_evi_find(mac->es, mac->zevpn); | |
1352 | if (!es_evi) { | |
1353 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
1354 | zlog_debug( | |
1355 | "%s: dp-install sync-mac vni %u mac %pEA es %s 0x%x %sskipped, no es-evi", | |
1356 | caller, zevpn->vni, &mac->macaddr, | |
1357 | mac->es ? mac->es->esi_str : "-", | |
1358 | mac->flags, | |
1359 | set_inactive ? "inactive " : ""); | |
1360 | return -1; | |
1361 | } | |
1362 | } | |
1363 | ||
b2998086 PR |
1364 | /* get the access vlan from the vxlan_device */ |
1365 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); | |
24268cd0 | 1366 | |
b2998086 | 1367 | if (!ifp) { |
b16e8004 DS |
1368 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1369 | char mac_buf[MAC_BUF_SIZE]; | |
1370 | ||
b2998086 | 1371 | zlog_debug( |
b16e8004 | 1372 | "%s: dp-install sync-mac vni %u mac %pEA es %s %s%sskipped, no access-port", |
15400f95 | 1373 | caller, zevpn->vni, &mac->macaddr, |
b16e8004 DS |
1374 | mac->es ? mac->es->esi_str : "-", |
1375 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1376 | sizeof(mac_buf)), | |
b2998086 | 1377 | set_inactive ? "inactive " : ""); |
b16e8004 | 1378 | } |
15400f95 | 1379 | return -1; |
b2998086 | 1380 | } |
24268cd0 | 1381 | |
b2998086 PR |
1382 | zif = ifp->info; |
1383 | br_ifp = zif->brslave_info.br_if; | |
1384 | if (!br_ifp) { | |
b16e8004 DS |
1385 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1386 | char mac_buf[MAC_BUF_SIZE]; | |
1387 | ||
b2998086 | 1388 | zlog_debug( |
b16e8004 | 1389 | "%s: dp-install sync-mac vni %u mac %pEA es %s %s%sskipped, no br", |
15400f95 | 1390 | caller, zevpn->vni, &mac->macaddr, |
b16e8004 DS |
1391 | mac->es ? mac->es->esi_str : "-", |
1392 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1393 | sizeof(mac_buf)), | |
b2998086 | 1394 | set_inactive ? "inactive " : ""); |
b16e8004 | 1395 | } |
15400f95 | 1396 | return -1; |
b2998086 | 1397 | } |
24268cd0 | 1398 | |
b2998086 PR |
1399 | sticky = !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY); |
1400 | if (force_clear_static) | |
1401 | set_static = false; | |
1402 | else | |
1403 | set_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1404 | |
15400f95 AK |
1405 | /* We can install a local mac that has been synced from the peer |
1406 | * over the VxLAN-overlay/network-port if fast failover is not | |
1407 | * supported and if the local ES is oper-down. | |
1408 | */ | |
1409 | if (mac->es && zebra_evpn_es_local_mac_via_network_port(mac->es)) { | |
b16e8004 DS |
1410 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1411 | char mac_buf[MAC_BUF_SIZE]; | |
1412 | ||
15400f95 | 1413 | zlog_debug( |
b16e8004 | 1414 | "dp-%s sync-nw-mac vni %u mac %pEA es %s %s%s", |
15400f95 AK |
1415 | set_static ? "install" : "uninstall", |
1416 | zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1417 | mac->es ? mac->es->esi_str : "-", |
1418 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1419 | sizeof(mac_buf)), | |
15400f95 | 1420 | set_inactive ? "inactive " : ""); |
b16e8004 | 1421 | } |
15400f95 AK |
1422 | if (set_static) |
1423 | /* XXX - old_static needs to be computed more | |
1424 | * accurately | |
1425 | */ | |
1426 | zebra_evpn_rem_mac_install(zevpn, mac, | |
1427 | true /* old_static */); | |
1428 | else | |
1429 | zebra_evpn_rem_mac_uninstall(zevpn, mac, | |
1430 | false /* force */); | |
1431 | ||
1432 | return 0; | |
1433 | } | |
1434 | ||
b16e8004 DS |
1435 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1436 | char mac_buf[MAC_BUF_SIZE]; | |
1437 | ||
1438 | zlog_debug("dp-install sync-mac vni %u mac %pEA es %s %s%s%s", | |
1439 | zevpn->vni, &mac->macaddr, | |
1440 | mac->es ? mac->es->esi_str : "-", | |
1441 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1442 | sizeof(mac_buf)), | |
1443 | set_static ? "static " : "", | |
1444 | set_inactive ? "inactive " : ""); | |
1445 | } | |
24268cd0 | 1446 | |
b2998086 PR |
1447 | dplane_local_mac_add(ifp, br_ifp, vid, &mac->macaddr, sticky, |
1448 | set_static, set_inactive); | |
15400f95 | 1449 | return 0; |
24268cd0 PR |
1450 | } |
1451 | ||
3198b2b3 DS |
1452 | void zebra_evpn_mac_send_add_del_to_client(struct zebra_mac *mac, |
1453 | bool old_bgp_ready, | |
b2998086 | 1454 | bool new_bgp_ready) |
24268cd0 | 1455 | { |
b2998086 PR |
1456 | if (new_bgp_ready) |
1457 | zebra_evpn_mac_send_add_to_client(mac->zevpn->vni, | |
1458 | &mac->macaddr, mac->flags, | |
1459 | mac->loc_seq, mac->es); | |
1460 | else if (old_bgp_ready) | |
1461 | zebra_evpn_mac_send_del_to_client(mac->zevpn->vni, | |
1462 | &mac->macaddr, mac->flags, | |
1463 | true /* force */); | |
24268cd0 PR |
1464 | } |
1465 | ||
b2998086 PR |
1466 | /* MAC hold timer is used to age out peer-active flag. |
1467 | * | |
1468 | * During this wait time we expect the dataplane component or an | |
1469 | * external neighmgr daemon to probe existing hosts to independently | |
1470 | * establish their presence on the ES. | |
1471 | */ | |
1472 | static int zebra_evpn_mac_hold_exp_cb(struct thread *t) | |
24268cd0 | 1473 | { |
3198b2b3 | 1474 | struct zebra_mac *mac; |
b2998086 PR |
1475 | bool old_bgp_ready; |
1476 | bool new_bgp_ready; | |
1477 | bool old_static; | |
1478 | bool new_static; | |
24268cd0 PR |
1479 | |
1480 | mac = THREAD_ARG(t); | |
b2998086 PR |
1481 | /* the purpose of the hold timer is to age out the peer-active |
1482 | * flag | |
1483 | */ | |
1484 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
24268cd0 PR |
1485 | return 0; |
1486 | ||
b2998086 PR |
1487 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
1488 | old_static = zebra_evpn_mac_is_static(mac); | |
1489 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1490 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1491 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1492 | |
b16e8004 DS |
1493 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1494 | char mac_buf[MAC_BUF_SIZE]; | |
1495 | ||
24268cd0 | 1496 | zlog_debug( |
ef7b8be4 DL |
1497 | "sync-mac vni %u mac %pEA es %s %shold expired", |
1498 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1499 | mac->es ? mac->es->esi_str : "-", |
1500 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1501 | sizeof(mac_buf))); | |
1502 | } | |
24268cd0 | 1503 | |
b2998086 PR |
1504 | /* re-program the local mac in the dataplane if the mac is no |
1505 | * longer static | |
1506 | */ | |
1507 | if (old_static != new_static) | |
1508 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1509 | false /* force_clear_static */, | |
1510 | __func__); | |
24268cd0 | 1511 | |
b2998086 PR |
1512 | /* inform bgp if needed */ |
1513 | if (old_bgp_ready != new_bgp_ready) | |
1514 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1515 | new_bgp_ready); | |
24268cd0 PR |
1516 | |
1517 | return 0; | |
1518 | } | |
1519 | ||
3198b2b3 | 1520 | static inline void zebra_evpn_mac_start_hold_timer(struct zebra_mac *mac) |
24268cd0 | 1521 | { |
b2998086 PR |
1522 | if (mac->hold_timer) |
1523 | return; | |
24268cd0 | 1524 | |
b16e8004 DS |
1525 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1526 | char mac_buf[MAC_BUF_SIZE]; | |
1527 | ||
24268cd0 | 1528 | zlog_debug( |
ef7b8be4 DL |
1529 | "sync-mac vni %u mac %pEA es %s %shold started", |
1530 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1531 | mac->es ? mac->es->esi_str : "-", |
1532 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1533 | sizeof(mac_buf))); | |
1534 | } | |
b2998086 PR |
1535 | thread_add_timer(zrouter.master, zebra_evpn_mac_hold_exp_cb, mac, |
1536 | zmh_info->mac_hold_time, &mac->hold_timer); | |
24268cd0 PR |
1537 | } |
1538 | ||
3198b2b3 | 1539 | void zebra_evpn_mac_stop_hold_timer(struct zebra_mac *mac) |
24268cd0 | 1540 | { |
b2998086 PR |
1541 | if (!mac->hold_timer) |
1542 | return; | |
24268cd0 | 1543 | |
b16e8004 DS |
1544 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1545 | char mac_buf[MAC_BUF_SIZE]; | |
1546 | ||
b2998086 | 1547 | zlog_debug( |
ef7b8be4 DL |
1548 | "sync-mac vni %u mac %pEA es %s %shold stopped", |
1549 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1550 | mac->es ? mac->es->esi_str : "-", |
1551 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1552 | sizeof(mac_buf))); | |
1553 | } | |
1554 | ||
b2998086 | 1555 | THREAD_OFF(mac->hold_timer); |
24268cd0 PR |
1556 | } |
1557 | ||
3198b2b3 | 1558 | void zebra_evpn_sync_mac_del(struct zebra_mac *mac) |
24268cd0 | 1559 | { |
b2998086 PR |
1560 | bool old_static; |
1561 | bool new_static; | |
24268cd0 | 1562 | |
b16e8004 DS |
1563 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1564 | char mac_buf[MAC_BUF_SIZE]; | |
1565 | ||
b2998086 | 1566 | zlog_debug( |
ef7b8be4 DL |
1567 | "sync-mac del vni %u mac %pEA es %s seq %d f %s", |
1568 | mac->zevpn->vni, &mac->macaddr, | |
b2998086 | 1569 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
1570 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1571 | sizeof(mac_buf))); | |
1572 | } | |
1573 | ||
b2998086 PR |
1574 | old_static = zebra_evpn_mac_is_static(mac); |
1575 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1576 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1577 | zebra_evpn_mac_start_hold_timer(mac); | |
1578 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1579 | |
b2998086 PR |
1580 | if (old_static != new_static) |
1581 | /* program the local mac in the kernel */ | |
1582 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1583 | false /* force_clear_static */, | |
1584 | __func__); | |
24268cd0 PR |
1585 | } |
1586 | ||
f6371c34 | 1587 | static inline bool zebra_evpn_mac_is_bgp_seq_ok(struct zebra_evpn *zevpn, |
3198b2b3 DS |
1588 | struct zebra_mac *mac, |
1589 | uint32_t seq, uint16_t ipa_len, | |
1a3bd37f | 1590 | const struct ipaddr *ipaddr, |
16de1338 | 1591 | bool sync) |
24268cd0 | 1592 | { |
b2998086 PR |
1593 | char ipbuf[INET6_ADDRSTRLEN]; |
1594 | uint32_t tmp_seq; | |
16de1338 | 1595 | const char *n_type; |
24268cd0 | 1596 | |
16de1338 | 1597 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
b2998086 | 1598 | tmp_seq = mac->loc_seq; |
16de1338 AK |
1599 | n_type = "local"; |
1600 | } else { | |
b2998086 | 1601 | tmp_seq = mac->rem_seq; |
16de1338 AK |
1602 | n_type = "remote"; |
1603 | } | |
24268cd0 | 1604 | |
b2998086 PR |
1605 | if (seq < tmp_seq) { |
1606 | /* if the mac was never advertised to bgp we must accept | |
1607 | * whatever sequence number bgp sends | |
1608 | * XXX - check with Vivek | |
1609 | */ | |
1610 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) | |
1611 | && !zebra_evpn_mac_is_ready_for_bgp(mac->flags)) { | |
b16e8004 DS |
1612 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC |
1613 | || IS_ZEBRA_DEBUG_VXLAN) { | |
1614 | char mac_buf[MAC_BUF_SIZE]; | |
1615 | ||
b2998086 | 1616 | zlog_debug( |
ef7b8be4 | 1617 | "%s-macip accept vni %u %s-mac %pEA%s%s lower seq %u f %s", |
16de1338 AK |
1618 | sync ? "sync" : "rem", zevpn->vni, |
1619 | n_type, | |
ef7b8be4 | 1620 | &mac->macaddr, |
b2998086 PR |
1621 | ipa_len ? " IP " : "", |
1622 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1623 | sizeof(ipbuf)) | |
1624 | : "", | |
b16e8004 DS |
1625 | tmp_seq, |
1626 | zebra_evpn_zebra_mac_flag_dump( | |
1627 | mac, mac_buf, sizeof(mac_buf))); | |
1628 | } | |
1629 | ||
b2998086 PR |
1630 | return true; |
1631 | } | |
24268cd0 | 1632 | |
b16e8004 DS |
1633 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || IS_ZEBRA_DEBUG_VXLAN) { |
1634 | char mac_buf[MAC_BUF_SIZE]; | |
1635 | ||
b2998086 | 1636 | zlog_debug( |
ef7b8be4 | 1637 | "%s-macip ignore vni %u %s-mac %pEA%s%s as existing has higher seq %u f %s", |
16de1338 | 1638 | sync ? "sync" : "rem", zevpn->vni, n_type, |
ef7b8be4 | 1639 | &mac->macaddr, |
b2998086 PR |
1640 | ipa_len ? " IP " : "", |
1641 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1642 | sizeof(ipbuf)) | |
1643 | : "", | |
b16e8004 DS |
1644 | tmp_seq, |
1645 | zebra_evpn_zebra_mac_flag_dump( | |
1646 | mac, mac_buf, sizeof(mac_buf))); | |
1647 | } | |
b2998086 | 1648 | return false; |
24268cd0 PR |
1649 | } |
1650 | ||
b2998086 | 1651 | return true; |
24268cd0 PR |
1652 | } |
1653 | ||
3198b2b3 | 1654 | struct zebra_mac *zebra_evpn_proc_sync_mac_update( |
f6371c34 DS |
1655 | struct zebra_evpn *zevpn, const struct ethaddr *macaddr, |
1656 | uint16_t ipa_len, const struct ipaddr *ipaddr, uint8_t flags, | |
1657 | uint32_t seq, const esi_t *esi, struct sync_mac_ip_ctx *ctx) | |
24268cd0 | 1658 | { |
3198b2b3 | 1659 | struct zebra_mac *mac; |
b2998086 PR |
1660 | bool inform_bgp = false; |
1661 | bool inform_dataplane = false; | |
1662 | bool seq_change = false; | |
1663 | bool es_change = false; | |
1664 | uint32_t tmp_seq; | |
b2998086 PR |
1665 | char ipbuf[INET6_ADDRSTRLEN]; |
1666 | bool old_local = false; | |
1667 | bool old_bgp_ready; | |
1668 | bool new_bgp_ready; | |
24268cd0 | 1669 | |
b2998086 PR |
1670 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); |
1671 | if (!mac) { | |
1672 | /* if it is a new local path we need to inform both | |
1673 | * the control protocol and the data-plane | |
1674 | */ | |
1675 | inform_bgp = true; | |
1676 | inform_dataplane = true; | |
1677 | ctx->mac_created = true; | |
1678 | ctx->mac_inactive = true; | |
24268cd0 | 1679 | |
b2998086 PR |
1680 | /* create the MAC and associate it with the dest ES */ |
1681 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1682 | zebra_evpn_es_mac_ref(mac, esi); | |
24268cd0 | 1683 | |
b2998086 PR |
1684 | /* local mac activated by an ES peer */ |
1685 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
1686 | /* if mac-only route setup peer flags */ | |
1687 | if (!ipa_len) { | |
1688 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) | |
1689 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1690 | else | |
1691 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1692 | } | |
1693 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
1694 | old_bgp_ready = false; | |
1695 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1696 | } else { | |
1697 | uint32_t old_flags; | |
1698 | uint32_t new_flags; | |
1699 | bool old_static; | |
1700 | bool new_static; | |
1701 | bool sticky; | |
1702 | bool remote_gw; | |
24268cd0 | 1703 | |
f1dbb1c7 DS |
1704 | mac->uptime = monotime(NULL); |
1705 | ||
b2998086 PR |
1706 | old_flags = mac->flags; |
1707 | sticky = !!CHECK_FLAG(old_flags, ZEBRA_MAC_STICKY); | |
1708 | remote_gw = !!CHECK_FLAG(old_flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
1709 | if (sticky || remote_gw) { | |
1710 | if (IS_ZEBRA_DEBUG_EVPN_MH_NEIGH) | |
1711 | zlog_debug( | |
ef7b8be4 DL |
1712 | "Ignore sync-macip vni %u mac %pEA%s%s%s%s", |
1713 | zevpn->vni, macaddr, | |
b2998086 PR |
1714 | ipa_len ? " IP " : "", |
1715 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1716 | sizeof(ipbuf)) | |
1717 | : "", | |
1718 | sticky ? " sticky" : "", | |
1719 | remote_gw ? " remote_gw" : ""); | |
1720 | ctx->ignore_macip = true; | |
1721 | return NULL; | |
1722 | } | |
1723 | if (!zebra_evpn_mac_is_bgp_seq_ok(zevpn, mac, seq, ipa_len, | |
16de1338 | 1724 | ipaddr, true)) { |
b2998086 PR |
1725 | ctx->ignore_macip = true; |
1726 | return NULL; | |
1727 | } | |
24268cd0 | 1728 | |
b2998086 PR |
1729 | old_local = !!CHECK_FLAG(old_flags, ZEBRA_MAC_LOCAL); |
1730 | old_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1731 | |
b2998086 PR |
1732 | /* re-build the mac flags */ |
1733 | new_flags = 0; | |
1734 | SET_FLAG(new_flags, ZEBRA_MAC_LOCAL); | |
1735 | /* retain old local activity flag */ | |
1736 | if (old_flags & ZEBRA_MAC_LOCAL) { | |
1737 | new_flags |= (old_flags & ZEBRA_MAC_LOCAL_INACTIVE); | |
1738 | } else { | |
1739 | new_flags |= ZEBRA_MAC_LOCAL_INACTIVE; | |
1740 | ctx->mac_inactive = true; | |
1741 | } | |
1742 | if (ipa_len) { | |
1743 | /* if mac-ip route do NOT update the peer flags | |
1744 | * i.e. retain only flags as is | |
1745 | */ | |
1746 | new_flags |= (old_flags & ZEBRA_MAC_ALL_PEER_FLAGS); | |
1747 | } else { | |
1748 | /* if mac-only route update peer flags */ | |
1749 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) { | |
1750 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1751 | /* if the mac was peer-active previously we | |
1752 | * need to keep the flag and start the | |
1753 | * holdtimer on it. the peer-active flag is | |
1754 | * cleared on holdtimer expiry. | |
1755 | */ | |
1756 | if (CHECK_FLAG(old_flags, | |
1757 | ZEBRA_MAC_ES_PEER_ACTIVE)) { | |
1758 | SET_FLAG(new_flags, | |
1759 | ZEBRA_MAC_ES_PEER_ACTIVE); | |
1760 | zebra_evpn_mac_start_hold_timer(mac); | |
1761 | } | |
1762 | } else { | |
1763 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1764 | /* stop hold timer if a peer has verified | |
1765 | * reachability | |
1766 | */ | |
1767 | zebra_evpn_mac_stop_hold_timer(mac); | |
1768 | } | |
1769 | } | |
1770 | mac->rem_seq = 0; | |
8b07f173 | 1771 | zebra_evpn_mac_clear_fwd_info(mac); |
b2998086 | 1772 | mac->flags = new_flags; |
24268cd0 | 1773 | |
b16e8004 DS |
1774 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC && (old_flags != new_flags)) { |
1775 | char mac_buf[MAC_BUF_SIZE], omac_buf[MAC_BUF_SIZE]; | |
3198b2b3 | 1776 | struct zebra_mac omac; |
b16e8004 DS |
1777 | |
1778 | omac.flags = old_flags; | |
b2998086 | 1779 | zlog_debug( |
ef7b8be4 DL |
1780 | "sync-mac vni %u mac %pEA old_f %snew_f %s", |
1781 | zevpn->vni, macaddr, | |
b16e8004 DS |
1782 | zebra_evpn_zebra_mac_flag_dump( |
1783 | &omac, omac_buf, sizeof(omac_buf)), | |
1784 | zebra_evpn_zebra_mac_flag_dump( | |
1785 | mac, mac_buf, sizeof(mac_buf))); | |
1786 | } | |
24268cd0 | 1787 | |
b2998086 PR |
1788 | /* update es */ |
1789 | es_change = zebra_evpn_es_mac_ref(mac, esi); | |
1790 | /* if mac dest change - inform both sides */ | |
1791 | if (es_change) { | |
1792 | inform_bgp = true; | |
1793 | inform_dataplane = true; | |
1794 | ctx->mac_inactive = true; | |
1795 | } | |
8b07f173 | 1796 | |
b2998086 PR |
1797 | /* if peer-flag is being set notify dataplane that the |
1798 | * entry must not be expired because of local inactivity | |
1799 | */ | |
1800 | new_static = zebra_evpn_mac_is_static(mac); | |
1801 | if (old_static != new_static) | |
1802 | inform_dataplane = true; | |
24268cd0 | 1803 | |
b2998086 PR |
1804 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(old_flags); |
1805 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1806 | if (old_bgp_ready != new_bgp_ready) | |
1807 | inform_bgp = true; | |
1808 | } | |
24268cd0 | 1809 | |
24268cd0 | 1810 | |
b2998086 PR |
1811 | /* update sequence number; if that results in a new local sequence |
1812 | * inform bgp | |
1813 | */ | |
1814 | tmp_seq = MAX(mac->loc_seq, seq); | |
1815 | if (tmp_seq != mac->loc_seq) { | |
1816 | mac->loc_seq = tmp_seq; | |
1817 | seq_change = true; | |
1818 | inform_bgp = true; | |
1819 | } | |
24268cd0 | 1820 | |
b16e8004 DS |
1821 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1822 | char mac_buf[MAC_BUF_SIZE]; | |
1823 | ||
ef7b8be4 DL |
1824 | zlog_debug("sync-mac %s vni %u mac %pEA es %s seq %d f %s%s%s", |
1825 | ctx->mac_created ? "created" : "updated", | |
1826 | zevpn->vni, macaddr, | |
b2998086 | 1827 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
1828 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1829 | sizeof(mac_buf)), | |
1830 | inform_bgp ? "inform_bgp" : "", | |
b2998086 | 1831 | inform_dataplane ? " inform_dp" : ""); |
b16e8004 | 1832 | } |
24268cd0 | 1833 | |
b2998086 PR |
1834 | if (inform_bgp) |
1835 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1836 | new_bgp_ready); | |
24268cd0 | 1837 | |
b2998086 PR |
1838 | /* neighs using the mac may need to be re-sent to |
1839 | * bgp with updated info | |
1840 | */ | |
1841 | if (seq_change || es_change || !old_local) | |
1842 | zebra_evpn_process_neigh_on_local_mac_change( | |
1843 | zevpn, mac, seq_change, es_change); | |
24268cd0 | 1844 | |
b2998086 PR |
1845 | if (inform_dataplane) { |
1846 | if (ipa_len) | |
1847 | /* if the mac is being created as a part of MAC-IP | |
1848 | * route wait for the neigh to be updated or | |
1849 | * created before programming the mac | |
1850 | */ | |
1851 | ctx->mac_dp_update_deferred = true; | |
1852 | else | |
1853 | /* program the local mac in the kernel. when the ES | |
1854 | * change we need to force the dataplane to reset | |
1855 | * the activity as we are yet to establish activity | |
1856 | * locally | |
1857 | */ | |
1858 | zebra_evpn_sync_mac_dp_install( | |
1859 | mac, ctx->mac_inactive, | |
1860 | false /* force_clear_static */, __func__); | |
1861 | } | |
24268cd0 | 1862 | |
b2998086 | 1863 | return mac; |
24268cd0 PR |
1864 | } |
1865 | ||
b2998086 PR |
1866 | /* update local fowarding info. return true if a dest-ES change |
1867 | * is detected | |
1868 | */ | |
3198b2b3 | 1869 | static bool zebra_evpn_local_mac_update_fwd_info(struct zebra_mac *mac, |
d9d3455e PR |
1870 | struct interface *ifp, |
1871 | vlanid_t vid) | |
24268cd0 | 1872 | { |
b2998086 PR |
1873 | struct zebra_if *zif = ifp->info; |
1874 | bool es_change; | |
47c58929 PG |
1875 | ns_id_t local_ns_id = NS_DEFAULT; |
1876 | struct zebra_vrf *zvrf; | |
00a7710c | 1877 | struct zebra_evpn_es *es; |
47c58929 PG |
1878 | |
1879 | zvrf = zebra_vrf_lookup_by_id(ifp->vrf_id); | |
1880 | if (zvrf && zvrf->zns) | |
1881 | local_ns_id = zvrf->zns->ns_id; | |
24268cd0 | 1882 | |
8b07f173 | 1883 | zebra_evpn_mac_clear_fwd_info(mac); |
24268cd0 | 1884 | |
00a7710c AK |
1885 | es = zif->es_info.es; |
1886 | if (es && (es->flags & ZEBRA_EVPNES_BYPASS)) | |
1887 | es = NULL; | |
1888 | es_change = zebra_evpn_es_mac_ref_entry(mac, es); | |
24268cd0 | 1889 | |
b2998086 PR |
1890 | if (!mac->es) { |
1891 | /* if es is set fwd_info is not-relevant/taped-out */ | |
1892 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
47c58929 | 1893 | mac->fwd_info.local.ns_id = local_ns_id; |
b2998086 | 1894 | mac->fwd_info.local.vid = vid; |
8b07f173 | 1895 | zebra_evpn_mac_ifp_link(mac, ifp); |
24268cd0 PR |
1896 | } |
1897 | ||
b2998086 | 1898 | return es_change; |
24268cd0 PR |
1899 | } |
1900 | ||
24268cd0 | 1901 | /* Notify Local MACs to the clienti, skips GW MAC */ |
b2998086 PR |
1902 | static void zebra_evpn_send_mac_hash_entry_to_client(struct hash_bucket *bucket, |
1903 | void *arg) | |
24268cd0 PR |
1904 | { |
1905 | struct mac_walk_ctx *wctx = arg; | |
3198b2b3 | 1906 | struct zebra_mac *zmac = bucket->data; |
24268cd0 PR |
1907 | |
1908 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_DEF_GW)) | |
1909 | return; | |
1910 | ||
1911 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) | |
b2998086 PR |
1912 | zebra_evpn_mac_send_add_to_client(wctx->zevpn->vni, |
1913 | &zmac->macaddr, zmac->flags, | |
1914 | zmac->loc_seq, zmac->es); | |
24268cd0 PR |
1915 | } |
1916 | ||
1917 | /* Iterator to Notify Local MACs of a EVPN */ | |
f6371c34 | 1918 | void zebra_evpn_send_mac_list_to_client(struct zebra_evpn *zevpn) |
24268cd0 PR |
1919 | { |
1920 | struct mac_walk_ctx wctx; | |
1921 | ||
1922 | if (!zevpn->mac_table) | |
1923 | return; | |
1924 | ||
1925 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); | |
1926 | wctx.zevpn = zevpn; | |
1927 | ||
b2998086 PR |
1928 | hash_iterate(zevpn->mac_table, zebra_evpn_send_mac_hash_entry_to_client, |
1929 | &wctx); | |
24268cd0 PR |
1930 | } |
1931 | ||
3198b2b3 | 1932 | void zebra_evpn_rem_mac_del(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 1933 | { |
b2998086 PR |
1934 | zebra_evpn_process_neigh_on_remote_mac_del(zevpn, mac); |
1935 | /* the remote sequence number in the auto mac entry | |
1936 | * needs to be reset to 0 as the mac entry may have | |
1937 | * been removed on all VTEPs (including | |
1938 | * the originating one) | |
1939 | */ | |
1940 | mac->rem_seq = 0; | |
24268cd0 | 1941 | |
b2998086 PR |
1942 | /* If all remote neighbors referencing a remote MAC |
1943 | * go away, we need to uninstall the MAC. | |
1944 | */ | |
1945 | if (remote_neigh_count(mac) == 0) { | |
f3722826 | 1946 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false /*force*/); |
b2998086 PR |
1947 | zebra_evpn_es_mac_deref_entry(mac); |
1948 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
24268cd0 PR |
1949 | } |
1950 | ||
b2998086 PR |
1951 | if (list_isempty(mac->neigh_list)) |
1952 | zebra_evpn_mac_del(zevpn, mac); | |
1953 | else | |
1954 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
24268cd0 PR |
1955 | } |
1956 | ||
b2998086 PR |
1957 | /* Print Duplicate MAC */ |
1958 | void zebra_evpn_print_dad_mac_hash(struct hash_bucket *bucket, void *ctxt) | |
24268cd0 | 1959 | { |
3198b2b3 | 1960 | struct zebra_mac *mac; |
24268cd0 | 1961 | |
3198b2b3 | 1962 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
1963 | if (!mac) |
1964 | return; | |
24268cd0 | 1965 | |
b2998086 PR |
1966 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
1967 | zebra_evpn_print_mac_hash(bucket, ctxt); | |
24268cd0 PR |
1968 | } |
1969 | ||
b2998086 PR |
1970 | /* Print Duplicate MAC in detail */ |
1971 | void zebra_evpn_print_dad_mac_hash_detail(struct hash_bucket *bucket, | |
1972 | void *ctxt) | |
24268cd0 | 1973 | { |
3198b2b3 | 1974 | struct zebra_mac *mac; |
24268cd0 | 1975 | |
3198b2b3 | 1976 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
1977 | if (!mac) |
1978 | return; | |
24268cd0 | 1979 | |
b2998086 PR |
1980 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
1981 | zebra_evpn_print_mac_hash_detail(bucket, ctxt); | |
24268cd0 | 1982 | } |
19fdd1be | 1983 | |
f6371c34 DS |
1984 | int zebra_evpn_mac_remote_macip_add( |
1985 | struct zebra_evpn *zevpn, struct zebra_vrf *zvrf, | |
1986 | const struct ethaddr *macaddr, uint16_t ipa_len, | |
3198b2b3 DS |
1987 | const struct ipaddr *ipaddr, struct zebra_mac **macp, |
1988 | struct in_addr vtep_ip, uint8_t flags, uint32_t seq, const esi_t *esi) | |
19fdd1be | 1989 | { |
19fdd1be | 1990 | char buf1[INET6_ADDRSTRLEN]; |
19fdd1be PR |
1991 | bool sticky; |
1992 | bool remote_gw; | |
1993 | int update_mac = 0; | |
1994 | bool do_dad = false; | |
1995 | bool is_dup_detect = false; | |
1996 | esi_t *old_esi; | |
1997 | bool old_static = false; | |
3198b2b3 | 1998 | struct zebra_mac *mac; |
8e1337c5 AK |
1999 | bool old_es_present; |
2000 | bool new_es_present; | |
19fdd1be PR |
2001 | |
2002 | sticky = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
2003 | remote_gw = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
2004 | ||
2005 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2006 | ||
2007 | /* Ignore if the mac is already present as a gateway mac */ | |
2008 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) | |
2009 | && CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW)) { | |
2010 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2011 | zlog_debug( | |
ef7b8be4 DL |
2012 | "Ignore remote MACIP ADD VNI %u MAC %pEA%s%s as MAC is already configured as gateway MAC", |
2013 | zevpn->vni, macaddr, | |
19fdd1be PR |
2014 | ipa_len ? " IP " : "", |
2015 | ipa_len ? ipaddr2str(ipaddr, buf1, sizeof(buf1)) | |
2016 | : ""); | |
2017 | return -1; | |
2018 | } | |
2019 | ||
2020 | old_esi = (mac && mac->es) ? &mac->es->esi : zero_esi; | |
2021 | ||
2022 | /* check if the remote MAC is unknown or has a change. | |
2023 | * If so, that needs to be updated first. Note that client could | |
2024 | * install MAC and MACIP separately or just install the latter. | |
2025 | */ | |
2026 | if (!mac || !CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2027 | || sticky != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) | |
2028 | || remote_gw != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) | |
2029 | || !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &vtep_ip) | |
2030 | || memcmp(old_esi, esi, sizeof(esi_t)) || seq != mac->rem_seq) | |
2031 | update_mac = 1; | |
2032 | ||
2033 | if (update_mac) { | |
2034 | if (!mac) { | |
2035 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
2036 | if (!mac) { | |
2037 | zlog_warn( | |
ef7b8be4 DL |
2038 | "Failed to add MAC %pEA VNI %u Remote VTEP %pI4", |
2039 | macaddr, zevpn->vni, &vtep_ip); | |
19fdd1be PR |
2040 | return -1; |
2041 | } | |
2042 | ||
2043 | zebra_evpn_es_mac_ref(mac, esi); | |
2044 | ||
2045 | /* Is this MAC created for a MACIP? */ | |
2046 | if (ipa_len) | |
2047 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2048 | } else { | |
19fdd1be PR |
2049 | /* When host moves but changes its (MAC,IP) |
2050 | * binding, BGP may install a MACIP entry that | |
2051 | * corresponds to "older" location of the host | |
2052 | * in transient situations (because {IP1,M1} | |
2053 | * is a different route from {IP1,M2}). Check | |
2054 | * the sequence number and ignore this update | |
2055 | * if appropriate. | |
2056 | */ | |
16de1338 AK |
2057 | if (!zebra_evpn_mac_is_bgp_seq_ok( |
2058 | zevpn, mac, seq, ipa_len, ipaddr, false)) | |
19fdd1be | 2059 | return -1; |
c1735c08 | 2060 | |
8e1337c5 | 2061 | old_es_present = !!mac->es; |
c1735c08 | 2062 | zebra_evpn_es_mac_ref(mac, esi); |
8e1337c5 AK |
2063 | new_es_present = !!mac->es; |
2064 | /* XXX - dataplane is curently not able to handle a MAC | |
2065 | * replace if the destination changes from L2-NHG to | |
2066 | * single VTEP and vice-versa. So delete the old entry | |
2067 | * and re-install | |
2068 | */ | |
2069 | if (old_es_present != new_es_present) | |
2070 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false); | |
19fdd1be PR |
2071 | } |
2072 | ||
2073 | /* Check MAC's curent state is local (this is the case | |
2074 | * where MAC has moved from L->R) and check previous | |
2075 | * detection started via local learning. | |
2076 | * RFC-7432: A PE/VTEP that detects a MAC mobility | |
2077 | * event via local learning starts an M-second timer. | |
2078 | * | |
2079 | * VTEP-IP or seq. change alone is not considered | |
2080 | * for dup. detection. | |
2081 | * | |
2082 | * MAC is already marked duplicate set dad, then | |
2083 | * is_dup_detect will be set to not install the entry. | |
2084 | */ | |
2085 | if ((!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2086 | && mac->dad_count) | |
2087 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
2088 | do_dad = true; | |
2089 | ||
2090 | /* Remove local MAC from BGP. */ | |
2091 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
2092 | /* force drop the sync flags */ | |
2093 | old_static = zebra_evpn_mac_is_static(mac); | |
b16e8004 DS |
2094 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2095 | char mac_buf[MAC_BUF_SIZE]; | |
2096 | ||
19fdd1be | 2097 | zlog_debug( |
ef7b8be4 DL |
2098 | "sync-mac->remote vni %u mac %pEA es %s seq %d f %s", |
2099 | zevpn->vni, macaddr, | |
19fdd1be | 2100 | mac->es ? mac->es->esi_str : "-", |
b16e8004 DS |
2101 | mac->loc_seq, |
2102 | zebra_evpn_zebra_mac_flag_dump( | |
2103 | mac, mac_buf, sizeof(mac_buf))); | |
2104 | } | |
2105 | ||
19fdd1be PR |
2106 | zebra_evpn_mac_clear_sync_info(mac); |
2107 | zebra_evpn_mac_send_del_to_client(zevpn->vni, macaddr, | |
2108 | mac->flags, | |
2109 | false /* force */); | |
2110 | } | |
2111 | ||
2112 | /* Set "auto" and "remote" forwarding info. */ | |
8b07f173 | 2113 | zebra_evpn_mac_clear_fwd_info(mac); |
19fdd1be | 2114 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); |
19fdd1be PR |
2115 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); |
2116 | mac->fwd_info.r_vtep_ip = vtep_ip; | |
2117 | ||
2118 | if (sticky) | |
2119 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2120 | else | |
2121 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2122 | ||
2123 | if (remote_gw) | |
2124 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
2125 | else | |
2126 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
2127 | ||
2128 | zebra_evpn_dup_addr_detect_for_mac( | |
2129 | zvrf, mac, mac->fwd_info.r_vtep_ip, do_dad, | |
2130 | &is_dup_detect, false); | |
2131 | ||
2132 | if (!is_dup_detect) { | |
2133 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
2134 | /* Install the entry. */ | |
2135 | zebra_evpn_rem_mac_install(zevpn, mac, old_static); | |
2136 | } | |
2137 | } | |
2138 | ||
2139 | /* Update seq number. */ | |
2140 | mac->rem_seq = seq; | |
2141 | ||
2142 | /* If there is no IP, return after clearing AUTO flag of MAC. */ | |
2143 | if (!ipa_len) { | |
2144 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2145 | return -1; | |
2146 | } | |
2147 | *macp = mac; | |
2148 | return 0; | |
2149 | } | |
d9d3455e | 2150 | |
f6371c34 DS |
2151 | int zebra_evpn_add_update_local_mac(struct zebra_vrf *zvrf, |
2152 | struct zebra_evpn *zevpn, | |
d9d3455e | 2153 | struct interface *ifp, |
1a3bd37f | 2154 | const struct ethaddr *macaddr, vlanid_t vid, |
d9d3455e | 2155 | bool sticky, bool local_inactive, |
3198b2b3 | 2156 | bool dp_static, struct zebra_mac *mac) |
d9d3455e | 2157 | { |
d9d3455e PR |
2158 | bool mac_sticky = false; |
2159 | bool inform_client = false; | |
2160 | bool upd_neigh = false; | |
2161 | bool is_dup_detect = false; | |
2162 | struct in_addr vtep_ip = {.s_addr = 0}; | |
2163 | bool es_change = false; | |
2164 | bool new_bgp_ready; | |
2165 | /* assume inactive if not present or if not local */ | |
2166 | bool old_local_inactive = true; | |
2167 | bool old_bgp_ready = false; | |
2168 | bool inform_dataplane = false; | |
2169 | bool new_static = false; | |
2170 | ||
2bdd4461 | 2171 | assert(ifp); |
d9d3455e | 2172 | /* Check if we need to create or update or it is a NO-OP. */ |
00a7710c AK |
2173 | if (!mac) |
2174 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
d9d3455e PR |
2175 | if (!mac) { |
2176 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
2177 | zlog_debug( | |
ef7b8be4 DL |
2178 | "ADD %sMAC %pEA intf %s(%u) VID %u -> VNI %u%s", |
2179 | sticky ? "sticky " : "", macaddr, | |
d9d3455e PR |
2180 | ifp->name, ifp->ifindex, vid, zevpn->vni, |
2181 | local_inactive ? " local-inactive" : ""); | |
2182 | ||
2183 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
2184 | if (!mac) { | |
2185 | flog_err( | |
2186 | EC_ZEBRA_MAC_ADD_FAILED, | |
ef7b8be4 DL |
2187 | "Failed to add MAC %pEA intf %s(%u) VID %u VNI %u", |
2188 | macaddr, ifp->name, ifp->ifindex, vid, | |
2189 | zevpn->vni); | |
d9d3455e PR |
2190 | return -1; |
2191 | } | |
2192 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
2193 | es_change = zebra_evpn_local_mac_update_fwd_info(mac, ifp, vid); | |
2194 | if (sticky) | |
2195 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2196 | inform_client = true; | |
2197 | } else { | |
b16e8004 DS |
2198 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2199 | char mac_buf[MAC_BUF_SIZE]; | |
2200 | ||
d9d3455e | 2201 | zlog_debug( |
ef7b8be4 DL |
2202 | "UPD %sMAC %pEA intf %s(%u) VID %u -> VNI %u %scurFlags %s", |
2203 | sticky ? "sticky " : "", macaddr, | |
d9d3455e PR |
2204 | ifp->name, ifp->ifindex, vid, zevpn->vni, |
2205 | local_inactive ? "local-inactive " : "", | |
b16e8004 DS |
2206 | zebra_evpn_zebra_mac_flag_dump( |
2207 | mac, mac_buf, sizeof(mac_buf))); | |
2208 | } | |
d9d3455e PR |
2209 | |
2210 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
2211 | struct interface *old_ifp; | |
2212 | vlanid_t old_vid; | |
2213 | bool old_static; | |
2214 | ||
2215 | zebra_evpn_mac_get_access_info(mac, &old_ifp, &old_vid); | |
2216 | old_bgp_ready = | |
2217 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2218 | old_local_inactive = | |
2219 | !!(mac->flags & ZEBRA_MAC_LOCAL_INACTIVE); | |
2220 | old_static = zebra_evpn_mac_is_static(mac); | |
2221 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) | |
2222 | mac_sticky = true; | |
00a7710c AK |
2223 | es_change = zebra_evpn_local_mac_update_fwd_info( |
2224 | mac, ifp, vid); | |
d9d3455e PR |
2225 | |
2226 | /* | |
2227 | * Update any changes and if changes are relevant to | |
2228 | * BGP, note it. | |
2229 | */ | |
2230 | if (mac_sticky == sticky && old_ifp == ifp | |
2231 | && old_vid == vid | |
2232 | && old_local_inactive == local_inactive | |
00a7710c | 2233 | && dp_static == old_static && !es_change) { |
d9d3455e PR |
2234 | if (IS_ZEBRA_DEBUG_VXLAN) |
2235 | zlog_debug( | |
ef7b8be4 | 2236 | " Add/Update %sMAC %pEA intf %s(%u) VID %u -> VNI %u%s, " |
d9d3455e | 2237 | "entry exists and has not changed ", |
ef7b8be4 DL |
2238 | sticky ? "sticky " : "", |
2239 | macaddr, ifp->name, | |
2240 | ifp->ifindex, vid, zevpn->vni, | |
d9d3455e PR |
2241 | local_inactive |
2242 | ? " local_inactive" | |
2243 | : ""); | |
2244 | return 0; | |
2245 | } | |
2246 | if (mac_sticky != sticky) { | |
2247 | if (sticky) | |
2248 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2249 | else | |
2250 | UNSET_FLAG(mac->flags, | |
2251 | ZEBRA_MAC_STICKY); | |
2252 | inform_client = true; | |
2253 | } | |
2254 | ||
d9d3455e PR |
2255 | /* If an es_change is detected we need to advertise |
2256 | * the route with a sequence that is one | |
2257 | * greater. This is need to indicate a mac-move | |
2258 | * to the ES peers | |
2259 | */ | |
2260 | if (es_change) { | |
00a7710c AK |
2261 | /* update the sequence number only if the entry |
2262 | * is locally active | |
2263 | */ | |
2264 | if (!local_inactive) | |
2265 | mac->loc_seq = mac->loc_seq + 1; | |
d9d3455e PR |
2266 | /* force drop the peer/sync info as it is |
2267 | * simply no longer relevant | |
2268 | */ | |
2269 | if (CHECK_FLAG(mac->flags, | |
2270 | ZEBRA_MAC_ALL_PEER_FLAGS)) { | |
2271 | zebra_evpn_mac_clear_sync_info(mac); | |
2272 | new_static = | |
2273 | zebra_evpn_mac_is_static(mac); | |
2274 | /* if we clear peer-flags we | |
2275 | * also need to notify the dataplane | |
2276 | * to drop the static flag | |
2277 | */ | |
2278 | if (old_static != new_static) | |
2279 | inform_dataplane = true; | |
2280 | } | |
2281 | } | |
2282 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2283 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { | |
2284 | bool do_dad = false; | |
2285 | ||
2286 | /* | |
2287 | * MAC has either moved or was "internally" created due | |
2288 | * to a neighbor learn and is now actually learnt. If | |
2289 | * it was learnt as a remote sticky MAC, this is an | |
2290 | * operator error. | |
2291 | */ | |
2292 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) { | |
2293 | flog_warn( | |
2294 | EC_ZEBRA_STICKY_MAC_ALREADY_LEARNT, | |
ef7b8be4 DL |
2295 | "MAC %pEA already learnt as remote sticky MAC behind VTEP %pI4 VNI %u", |
2296 | macaddr, | |
9bcef951 | 2297 | &mac->fwd_info.r_vtep_ip, |
d9d3455e PR |
2298 | zevpn->vni); |
2299 | return 0; | |
2300 | } | |
2301 | ||
2302 | /* If an actual move, compute MAC's seq number */ | |
2303 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
2304 | mac->loc_seq = | |
2305 | MAX(mac->rem_seq + 1, mac->loc_seq); | |
2306 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
2307 | /* Trigger DAD for remote MAC */ | |
2308 | do_dad = true; | |
2309 | } | |
2310 | ||
2311 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
2312 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2313 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
2314 | es_change = zebra_evpn_local_mac_update_fwd_info( | |
2315 | mac, ifp, vid); | |
2316 | if (sticky) | |
2317 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2318 | else | |
2319 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2320 | /* | |
2321 | * We have to inform BGP of this MAC as well as process | |
2322 | * all neighbors. | |
2323 | */ | |
2324 | inform_client = true; | |
2325 | upd_neigh = true; | |
2326 | ||
2327 | zebra_evpn_dup_addr_detect_for_mac( | |
2328 | zvrf, mac, vtep_ip, do_dad, &is_dup_detect, | |
2329 | true); | |
2330 | if (is_dup_detect) { | |
2331 | inform_client = false; | |
2332 | upd_neigh = false; | |
839dfe29 | 2333 | es_change = false; |
d9d3455e PR |
2334 | } |
2335 | } | |
2336 | } | |
2337 | ||
2338 | /* if the dataplane thinks the entry is sync but it is | |
69711b3f AK |
2339 | * not sync in zebra (or vice-versa) we need to re-install |
2340 | * to fixup | |
d9d3455e | 2341 | */ |
69711b3f AK |
2342 | new_static = zebra_evpn_mac_is_static(mac); |
2343 | if (dp_static != new_static) | |
2344 | inform_dataplane = true; | |
d9d3455e PR |
2345 | |
2346 | if (local_inactive) | |
2347 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2348 | else | |
2349 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2350 | ||
2351 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2352 | /* if local-activity has changed we need update bgp | |
2353 | * even if bgp already knows about the mac | |
2354 | */ | |
2355 | if ((old_local_inactive != local_inactive) | |
2356 | || (new_bgp_ready != old_bgp_ready)) { | |
b16e8004 DS |
2357 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2358 | char mac_buf[MAC_BUF_SIZE]; | |
2359 | ||
d9d3455e | 2360 | zlog_debug( |
ef7b8be4 DL |
2361 | "local mac vni %u mac %pEA es %s seq %d f %s%s", |
2362 | zevpn->vni, macaddr, | |
d9d3455e | 2363 | mac->es ? mac->es->esi_str : "", mac->loc_seq, |
b16e8004 DS |
2364 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
2365 | sizeof(mac_buf)), | |
2366 | local_inactive ? "local-inactive" : ""); | |
2367 | } | |
2368 | ||
839dfe29 CS |
2369 | if (!is_dup_detect) |
2370 | inform_client = true; | |
d9d3455e PR |
2371 | } |
2372 | ||
2373 | if (es_change) { | |
2374 | inform_client = true; | |
2375 | upd_neigh = true; | |
2376 | } | |
2377 | ||
2378 | /* Inform dataplane if required. */ | |
2379 | if (inform_dataplane) | |
2380 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
2381 | false /* force_clear_static */, | |
2382 | __func__); | |
2383 | ||
2384 | /* Inform BGP if required. */ | |
2385 | if (inform_client) | |
2386 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2387 | new_bgp_ready); | |
2388 | ||
2389 | /* Process all neighbors associated with this MAC, if required. */ | |
2390 | if (upd_neigh) | |
2391 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
2392 | es_change); | |
2393 | ||
2394 | return 0; | |
2395 | } | |
ad6ca5f4 | 2396 | |
3198b2b3 | 2397 | int zebra_evpn_del_local_mac(struct zebra_evpn *zevpn, struct zebra_mac *mac, |
00a7710c | 2398 | bool clear_static) |
ad6ca5f4 | 2399 | { |
ad6ca5f4 PR |
2400 | bool old_bgp_ready; |
2401 | bool new_bgp_ready; | |
b16e8004 | 2402 | |
46d6f5a2 | 2403 | if (IS_ZEBRA_DEBUG_VXLAN) |
ef7b8be4 DL |
2404 | zlog_debug("DEL MAC %pEA VNI %u seq %u flags 0x%x nbr count %u", |
2405 | &mac->macaddr, zevpn->vni, mac->loc_seq, mac->flags, | |
46d6f5a2 | 2406 | listcount(mac->neigh_list)); |
ad6ca5f4 PR |
2407 | |
2408 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
00a7710c | 2409 | if (!clear_static && zebra_evpn_mac_is_static(mac)) { |
ad6ca5f4 PR |
2410 | /* this is a synced entry and can only be removed when the |
2411 | * es-peers stop advertising it. | |
2412 | */ | |
8b07f173 | 2413 | zebra_evpn_mac_clear_fwd_info(mac); |
ad6ca5f4 | 2414 | |
b16e8004 DS |
2415 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2416 | char mac_buf[MAC_BUF_SIZE]; | |
2417 | ||
ad6ca5f4 | 2418 | zlog_debug( |
ef7b8be4 DL |
2419 | "re-add sync-mac vni %u mac %pEA es %s seq %d f %s", |
2420 | zevpn->vni, &mac->macaddr, | |
ad6ca5f4 | 2421 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
2422 | zebra_evpn_zebra_mac_flag_dump( |
2423 | mac, mac_buf, sizeof(mac_buf))); | |
2424 | } | |
ad6ca5f4 PR |
2425 | |
2426 | /* inform-bgp about change in local-activity if any */ | |
2427 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) { | |
2428 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2429 | new_bgp_ready = | |
2430 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2431 | zebra_evpn_mac_send_add_del_to_client( | |
2432 | mac, old_bgp_ready, new_bgp_ready); | |
2433 | } | |
2434 | ||
1a4f9efd AK |
2435 | /* re-install the inactive entry in the kernel */ |
2436 | zebra_evpn_sync_mac_dp_install(mac, true /* set_inactive */, | |
ad6ca5f4 PR |
2437 | false /* force_clear_static */, |
2438 | __func__); | |
2439 | ||
2440 | return 0; | |
2441 | } | |
2442 | ||
00a7710c AK |
2443 | /* flush the peer info */ |
2444 | zebra_evpn_mac_clear_sync_info(mac); | |
2445 | ||
ad6ca5f4 PR |
2446 | /* Update all the neigh entries associated with this mac */ |
2447 | zebra_evpn_process_neigh_on_local_mac_del(zevpn, mac); | |
2448 | ||
2449 | /* Remove MAC from BGP. */ | |
46d6f5a2 | 2450 | zebra_evpn_mac_send_del_to_client(zevpn->vni, &mac->macaddr, mac->flags, |
ad6ca5f4 PR |
2451 | false /* force */); |
2452 | ||
2453 | zebra_evpn_es_mac_deref_entry(mac); | |
2454 | ||
8b07f173 AK |
2455 | /* remove links to the destination access port */ |
2456 | zebra_evpn_mac_clear_fwd_info(mac); | |
2457 | ||
ad6ca5f4 PR |
2458 | /* |
2459 | * If there are no neigh associated with the mac delete the mac | |
2460 | * else mark it as AUTO for forward reference | |
2461 | */ | |
2462 | if (!listcount(mac->neigh_list)) { | |
2463 | zebra_evpn_mac_del(zevpn, mac); | |
2464 | } else { | |
2465 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); | |
2466 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2467 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2468 | } | |
2469 | ||
2470 | return 0; | |
2471 | } | |
7bce3535 | 2472 | |
f6371c34 | 2473 | int zebra_evpn_mac_gw_macip_add(struct interface *ifp, struct zebra_evpn *zevpn, |
3198b2b3 DS |
2474 | const struct ipaddr *ip, |
2475 | struct zebra_mac **macp, | |
1a3bd37f | 2476 | const struct ethaddr *macaddr, vlanid_t vlan_id, |
e4c3ece6 | 2477 | bool def_gw) |
7bce3535 | 2478 | { |
3198b2b3 | 2479 | struct zebra_mac *mac; |
47c58929 PG |
2480 | ns_id_t local_ns_id = NS_DEFAULT; |
2481 | struct zebra_vrf *zvrf; | |
2482 | ||
2483 | zvrf = zebra_vrf_lookup_by_id(ifp->vrf_id); | |
2484 | if (zvrf && zvrf->zns) | |
2485 | local_ns_id = zvrf->zns->ns_id; | |
7bce3535 PR |
2486 | |
2487 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2488 | if (!mac) { | |
2489 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
2490 | if (!mac) { | |
2491 | flog_err(EC_ZEBRA_MAC_ADD_FAILED, | |
ef7b8be4 DL |
2492 | "Failed to add MAC %pEA intf %s(%u) VID %u", |
2493 | macaddr, ifp->name, ifp->ifindex, vlan_id); | |
7bce3535 PR |
2494 | return -1; |
2495 | } | |
2496 | } | |
2497 | ||
2498 | /* Set "local" forwarding info. */ | |
8b07f173 | 2499 | zebra_evpn_mac_clear_fwd_info(mac); |
7bce3535 PR |
2500 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); |
2501 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
e4c3ece6 AK |
2502 | if (def_gw) |
2503 | SET_FLAG(mac->flags, ZEBRA_MAC_DEF_GW); | |
7bce3535 | 2504 | mac->fwd_info.local.ifindex = ifp->ifindex; |
47c58929 | 2505 | mac->fwd_info.local.ns_id = local_ns_id; |
7bce3535 PR |
2506 | mac->fwd_info.local.vid = vlan_id; |
2507 | ||
2508 | *macp = mac; | |
2509 | ||
2510 | return 0; | |
2511 | } | |
243b74ed | 2512 | |
f6371c34 | 2513 | void zebra_evpn_mac_svi_del(struct interface *ifp, struct zebra_evpn *zevpn) |
243b74ed | 2514 | { |
3198b2b3 | 2515 | struct zebra_mac *mac; |
243b74ed | 2516 | struct ethaddr macaddr; |
e4c3ece6 | 2517 | bool old_bgp_ready; |
243b74ed AK |
2518 | |
2519 | if (!zebra_evpn_mh_do_adv_svi_mac()) | |
2520 | return; | |
2521 | ||
2522 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2523 | mac = zebra_evpn_mac_lookup(zevpn, &macaddr); | |
2524 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) { | |
2525 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES) | |
2526 | zlog_debug("SVI %s mac free", ifp->name); | |
2527 | ||
e4c3ece6 | 2528 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
243b74ed | 2529 | UNSET_FLAG(mac->flags, ZEBRA_MAC_SVI); |
e4c3ece6 AK |
2530 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, |
2531 | false); | |
243b74ed AK |
2532 | zebra_evpn_deref_ip2mac(mac->zevpn, mac); |
2533 | } | |
2534 | } | |
2535 | ||
f6371c34 | 2536 | void zebra_evpn_mac_svi_add(struct interface *ifp, struct zebra_evpn *zevpn) |
243b74ed | 2537 | { |
3198b2b3 | 2538 | struct zebra_mac *mac = NULL; |
243b74ed AK |
2539 | struct ethaddr macaddr; |
2540 | struct zebra_if *zif = ifp->info; | |
e4c3ece6 AK |
2541 | bool old_bgp_ready; |
2542 | bool new_bgp_ready; | |
243b74ed | 2543 | |
e4c3ece6 AK |
2544 | if (!zebra_evpn_mh_do_adv_svi_mac() |
2545 | || !zebra_evpn_send_to_client_ok(zevpn)) | |
243b74ed AK |
2546 | return; |
2547 | ||
2548 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2549 | ||
2550 | /* dup check */ | |
2551 | mac = zebra_evpn_mac_lookup(zevpn, &macaddr); | |
2552 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) | |
2553 | return; | |
2554 | ||
2555 | /* add/update mac */ | |
2556 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES) | |
2557 | zlog_debug("SVI %s mac add", zif->ifp->name); | |
2558 | ||
e4c3ece6 AK |
2559 | old_bgp_ready = (mac && zebra_evpn_mac_is_ready_for_bgp(mac->flags)) |
2560 | ? true | |
2561 | : false; | |
2562 | ||
243b74ed | 2563 | mac = NULL; |
e4c3ece6 | 2564 | zebra_evpn_mac_gw_macip_add(ifp, zevpn, NULL, &mac, &macaddr, 0, false); |
243b74ed AK |
2565 | if (mac) |
2566 | SET_FLAG(mac->flags, ZEBRA_MAC_SVI); | |
e4c3ece6 AK |
2567 | |
2568 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2569 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2570 | new_bgp_ready); | |
243b74ed | 2571 | } |