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Commit | Line | Data |
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acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
24268cd0 PR |
2 | /* |
3 | * Zebra EVPN for VxLAN code | |
4 | * Copyright (C) 2016, 2017 Cumulus Networks, Inc. | |
24268cd0 PR |
5 | */ |
6 | ||
7 | #include <zebra.h> | |
8 | ||
9 | #include "hash.h" | |
b2998086 | 10 | #include "interface.h" |
24268cd0 | 11 | #include "jhash.h" |
24268cd0 PR |
12 | #include "memory.h" |
13 | #include "prefix.h" | |
24268cd0 | 14 | #include "vlan.h" |
b2998086 | 15 | #include "json.h" |
bf902d4c | 16 | #include "printfrr.h" |
24268cd0 | 17 | |
b2998086 | 18 | #include "zebra/zserv.h" |
24268cd0 | 19 | #include "zebra/debug.h" |
b2998086 | 20 | #include "zebra/zebra_router.h" |
b2998086 | 21 | #include "zebra/zebra_errors.h" |
24268cd0 | 22 | #include "zebra/zebra_vrf.h" |
0adeb5fd SR |
23 | #include "zebra/zebra_vxlan.h" |
24 | #include "zebra/zebra_vxlan_if.h" | |
b2998086 | 25 | #include "zebra/zebra_evpn.h" |
24268cd0 | 26 | #include "zebra/zebra_evpn_mh.h" |
b2998086 PR |
27 | #include "zebra/zebra_evpn_mac.h" |
28 | #include "zebra/zebra_evpn_neigh.h" | |
24268cd0 | 29 | |
24268cd0 | 30 | DEFINE_MTYPE_STATIC(ZEBRA, MAC, "EVPN MAC"); |
24268cd0 PR |
31 | |
32 | /* | |
33 | * Return number of valid MACs in an EVPN's MAC hash table - all | |
34 | * remote MACs and non-internal (auto) local MACs count. | |
35 | */ | |
f6371c34 | 36 | uint32_t num_valid_macs(struct zebra_evpn *zevpn) |
24268cd0 PR |
37 | { |
38 | unsigned int i; | |
39 | uint32_t num_macs = 0; | |
40 | struct hash *hash; | |
41 | struct hash_bucket *hb; | |
3198b2b3 | 42 | struct zebra_mac *mac; |
24268cd0 PR |
43 | |
44 | hash = zevpn->mac_table; | |
45 | if (!hash) | |
46 | return num_macs; | |
47 | for (i = 0; i < hash->size; i++) { | |
48 | for (hb = hash->index[i]; hb; hb = hb->next) { | |
3198b2b3 | 49 | mac = (struct zebra_mac *)hb->data; |
24268cd0 PR |
50 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) |
51 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) | |
52 | || !CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) | |
53 | num_macs++; | |
54 | } | |
55 | } | |
56 | ||
57 | return num_macs; | |
58 | } | |
59 | ||
f6371c34 | 60 | uint32_t num_dup_detected_macs(struct zebra_evpn *zevpn) |
24268cd0 PR |
61 | { |
62 | unsigned int i; | |
63 | uint32_t num_macs = 0; | |
64 | struct hash *hash; | |
65 | struct hash_bucket *hb; | |
3198b2b3 | 66 | struct zebra_mac *mac; |
24268cd0 PR |
67 | |
68 | hash = zevpn->mac_table; | |
69 | if (!hash) | |
70 | return num_macs; | |
71 | for (i = 0; i < hash->size; i++) { | |
72 | for (hb = hash->index[i]; hb; hb = hb->next) { | |
3198b2b3 | 73 | mac = (struct zebra_mac *)hb->data; |
24268cd0 PR |
74 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
75 | num_macs++; | |
76 | } | |
77 | } | |
78 | ||
79 | return num_macs; | |
80 | } | |
81 | ||
8b07f173 AK |
82 | /* Setup mac_list against the access port. This is done when a mac uses |
83 | * the ifp as destination for the first time | |
84 | */ | |
85 | static void zebra_evpn_mac_ifp_new(struct zebra_if *zif) | |
86 | { | |
87 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
88 | zlog_debug("MAC list created for ifp %s (%u)", zif->ifp->name, | |
89 | zif->ifp->ifindex); | |
90 | ||
91 | zif->mac_list = list_new(); | |
92 | listset_app_node_mem(zif->mac_list); | |
93 | } | |
94 | ||
8b07f173 | 95 | /* Unlink local mac from a destination access port */ |
3198b2b3 | 96 | static void zebra_evpn_mac_ifp_unlink(struct zebra_mac *zmac) |
8b07f173 AK |
97 | { |
98 | struct zebra_if *zif; | |
99 | struct interface *ifp = zmac->ifp; | |
100 | ||
101 | if (!ifp) | |
102 | return; | |
103 | ||
104 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
105 | zlog_debug("VNI %d MAC %pEA unlinked from ifp %s (%u)", | |
106 | zmac->zevpn->vni, | |
107 | &zmac->macaddr, | |
108 | ifp->name, ifp->ifindex); | |
109 | ||
110 | zif = ifp->info; | |
111 | list_delete_node(zif->mac_list, &zmac->ifp_listnode); | |
112 | zmac->ifp = NULL; | |
113 | } | |
114 | ||
51aa2693 AK |
115 | /* Free up the mac_list if any as a part of the interface del/cleanup */ |
116 | void zebra_evpn_mac_ifp_del(struct interface *ifp) | |
117 | { | |
118 | struct zebra_if *zif = ifp->info; | |
119 | struct listnode *node; | |
120 | struct zebra_mac *zmac; | |
121 | ||
122 | if (zif->mac_list) { | |
123 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
124 | zlog_debug("MAC list deleted for ifp %s (%u)", | |
125 | zif->ifp->name, zif->ifp->ifindex); | |
126 | ||
127 | for (ALL_LIST_ELEMENTS_RO(zif->mac_list, node, zmac)) { | |
128 | zebra_evpn_mac_ifp_unlink(zmac); | |
129 | } | |
130 | list_delete(&zif->mac_list); | |
131 | } | |
132 | } | |
133 | ||
8b07f173 AK |
134 | /* Link local mac to destination access port. This is done only if the |
135 | * local mac is associated with a zero ESI i.e. single attach or lacp-bypass | |
136 | * bridge port member | |
137 | */ | |
3198b2b3 DS |
138 | static void zebra_evpn_mac_ifp_link(struct zebra_mac *zmac, |
139 | struct interface *ifp) | |
8b07f173 AK |
140 | { |
141 | struct zebra_if *zif; | |
142 | ||
143 | if (!CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) | |
144 | return; | |
145 | ||
146 | /* already linked to the destination */ | |
147 | if (zmac->ifp == ifp) | |
148 | return; | |
149 | ||
150 | /* unlink the mac from any old destination */ | |
151 | if (zmac->ifp) | |
152 | zebra_evpn_mac_ifp_unlink(zmac); | |
153 | ||
154 | if (!ifp) | |
155 | return; | |
156 | ||
157 | zif = ifp->info; | |
158 | /* the interface mac_list is created on first mac link attempt */ | |
159 | if (!zif->mac_list) | |
160 | zebra_evpn_mac_ifp_new(zif); | |
161 | ||
162 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
163 | zlog_debug("VNI %d MAC %pEA linked to ifp %s (%u)", | |
164 | zmac->zevpn->vni, | |
165 | &zmac->macaddr, | |
166 | ifp->name, ifp->ifindex); | |
167 | ||
168 | zmac->ifp = ifp; | |
169 | listnode_init(&zmac->ifp_listnode, zmac); | |
170 | listnode_add(zif->mac_list, &zmac->ifp_listnode); | |
171 | } | |
172 | ||
173 | /* If the mac is a local mac clear links to destination access port */ | |
3198b2b3 | 174 | void zebra_evpn_mac_clear_fwd_info(struct zebra_mac *zmac) |
8b07f173 AK |
175 | { |
176 | zebra_evpn_mac_ifp_unlink(zmac); | |
177 | memset(&zmac->fwd_info, 0, sizeof(zmac->fwd_info)); | |
178 | } | |
179 | ||
b2998086 PR |
180 | /* |
181 | * Install remote MAC into the forwarding plane. | |
182 | */ | |
3198b2b3 | 183 | int zebra_evpn_rem_mac_install(struct zebra_evpn *zevpn, struct zebra_mac *mac, |
b2998086 | 184 | bool was_static) |
24268cd0 | 185 | { |
b2998086 | 186 | const struct zebra_if *zif, *br_zif; |
8d30ff3b | 187 | const struct zebra_vxlan_vni *vni; |
b2998086 PR |
188 | bool sticky; |
189 | enum zebra_dplane_result res; | |
190 | const struct interface *br_ifp; | |
191 | vlanid_t vid; | |
192 | uint32_t nhg_id; | |
193 | struct in_addr vtep_ip; | |
24268cd0 | 194 | |
b2998086 PR |
195 | zif = zevpn->vxlan_if->info; |
196 | if (!zif) | |
197 | return -1; | |
198 | ||
199 | br_ifp = zif->brslave_info.br_if; | |
200 | if (br_ifp == NULL) | |
201 | return -1; | |
202 | ||
8d30ff3b SR |
203 | vni = zebra_vxlan_if_vni_find(zif, zevpn->vni); |
204 | if (!vni) | |
205 | return -1; | |
b2998086 PR |
206 | |
207 | sticky = !!CHECK_FLAG(mac->flags, | |
208 | (ZEBRA_MAC_STICKY | ZEBRA_MAC_REMOTE_DEF_GW)); | |
209 | ||
210 | /* If nexthop group for the FDB entry is inactive (not programmed in | |
211 | * the dataplane) the MAC entry cannot be installed | |
212 | */ | |
213 | if (mac->es) { | |
214 | if (!(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE)) | |
215 | return -1; | |
216 | nhg_id = mac->es->nhg_id; | |
217 | vtep_ip.s_addr = 0; | |
218 | } else { | |
219 | nhg_id = 0; | |
220 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
24268cd0 PR |
221 | } |
222 | ||
b2998086 PR |
223 | br_zif = (const struct zebra_if *)(br_ifp->info); |
224 | ||
225 | if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif)) | |
8d30ff3b | 226 | vid = vni->access_vlan; |
b2998086 PR |
227 | else |
228 | vid = 0; | |
229 | ||
230 | res = dplane_rem_mac_add(zevpn->vxlan_if, br_ifp, vid, &mac->macaddr, | |
b95ce8fa | 231 | vni->vni, vtep_ip, sticky, nhg_id, was_static); |
b2998086 PR |
232 | if (res != ZEBRA_DPLANE_REQUEST_FAILURE) |
233 | return 0; | |
234 | else | |
235 | return -1; | |
24268cd0 PR |
236 | } |
237 | ||
b2998086 PR |
238 | /* |
239 | * Uninstall remote MAC from the forwarding plane. | |
240 | */ | |
3198b2b3 DS |
241 | int zebra_evpn_rem_mac_uninstall(struct zebra_evpn *zevpn, |
242 | struct zebra_mac *mac, bool force) | |
24268cd0 | 243 | { |
b2998086 | 244 | const struct zebra_if *zif, *br_zif; |
8d30ff3b | 245 | struct zebra_vxlan_vni *vni; |
b2998086 PR |
246 | struct in_addr vtep_ip; |
247 | const struct interface *ifp, *br_ifp; | |
248 | vlanid_t vid; | |
249 | enum zebra_dplane_result res; | |
24268cd0 | 250 | |
f3722826 AK |
251 | /* If the MAC was not installed there is no need to uninstall it */ |
252 | if (!force && mac->es && !(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE)) | |
253 | return -1; | |
254 | ||
b2998086 PR |
255 | if (!zevpn->vxlan_if) { |
256 | if (IS_ZEBRA_DEBUG_VXLAN) | |
257 | zlog_debug( | |
258 | "VNI %u hash %p couldn't be uninstalled - no intf", | |
259 | zevpn->vni, zevpn); | |
260 | return -1; | |
261 | } | |
24268cd0 | 262 | |
b2998086 PR |
263 | zif = zevpn->vxlan_if->info; |
264 | if (!zif) | |
265 | return -1; | |
24268cd0 | 266 | |
b2998086 PR |
267 | br_ifp = zif->brslave_info.br_if; |
268 | if (br_ifp == NULL) | |
269 | return -1; | |
24268cd0 | 270 | |
8d30ff3b SR |
271 | vni = zebra_vxlan_if_vni_find(zif, zevpn->vni); |
272 | if (!vni) | |
273 | return -1; | |
24268cd0 | 274 | |
b2998086 | 275 | br_zif = (const struct zebra_if *)br_ifp->info; |
24268cd0 | 276 | |
b2998086 | 277 | if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif)) |
8d30ff3b | 278 | vid = vni->access_vlan; |
b2998086 PR |
279 | else |
280 | vid = 0; | |
24268cd0 | 281 | |
b2998086 PR |
282 | ifp = zevpn->vxlan_if; |
283 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
284 | ||
b95ce8fa SR |
285 | res = dplane_rem_mac_del(ifp, br_ifp, vid, &mac->macaddr, vni->vni, |
286 | vtep_ip); | |
b2998086 PR |
287 | if (res != ZEBRA_DPLANE_REQUEST_FAILURE) |
288 | return 0; | |
289 | else | |
290 | return -1; | |
24268cd0 PR |
291 | } |
292 | ||
b2998086 PR |
293 | /* |
294 | * Decrement neighbor refcount of MAC; uninstall and free it if | |
295 | * appropriate. | |
24268cd0 | 296 | */ |
3198b2b3 | 297 | void zebra_evpn_deref_ip2mac(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 298 | { |
b2998086 PR |
299 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) |
300 | return; | |
24268cd0 | 301 | |
b2998086 PR |
302 | /* If all remote neighbors referencing a remote MAC go away, |
303 | * we need to uninstall the MAC. | |
24268cd0 | 304 | */ |
b2998086 PR |
305 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) |
306 | && remote_neigh_count(mac) == 0) { | |
f3722826 | 307 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false /*force*/); |
b2998086 PR |
308 | zebra_evpn_es_mac_deref_entry(mac); |
309 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
310 | } | |
311 | ||
243b74ed AK |
312 | /* If no references, delete the MAC. */ |
313 | if (!zebra_evpn_mac_in_use(mac)) | |
b2998086 PR |
314 | zebra_evpn_mac_del(zevpn, mac); |
315 | } | |
316 | ||
3198b2b3 | 317 | static void zebra_evpn_mac_get_access_info(struct zebra_mac *mac, |
e3f05a8a | 318 | struct interface **p_ifp, |
d9d3455e | 319 | vlanid_t *vid) |
b2998086 | 320 | { |
8d30ff3b SR |
321 | struct zebra_vxlan_vni *vni; |
322 | ||
b2998086 PR |
323 | /* if the mac is associated with an ES we must get the access |
324 | * info from the ES | |
24268cd0 | 325 | */ |
b2998086 PR |
326 | if (mac->es) { |
327 | struct zebra_if *zif; | |
328 | ||
329 | /* get the access port from the es */ | |
e3f05a8a | 330 | *p_ifp = mac->es->zif ? mac->es->zif->ifp : NULL; |
b2998086 PR |
331 | /* get the vlan from the EVPN */ |
332 | if (mac->zevpn->vxlan_if) { | |
333 | zif = mac->zevpn->vxlan_if->info; | |
8d30ff3b SR |
334 | vni = zebra_vxlan_if_vni_find(zif, mac->zevpn->vni); |
335 | *vid = vni->access_vlan; | |
b2998086 PR |
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); |
e3f05a8a | 344 | *p_ifp = if_lookup_by_index_per_ns(zns, |
345 | mac->fwd_info.local.ifindex); | |
b2998086 PR |
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 " : "", | |
0ef63eb5 | 371 | CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE) |
372 | ? "PEER Active " | |
373 | : "", | |
b16e8004 DS |
374 | CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY) ? "PROXY " : "", |
375 | CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE) | |
376 | ? "LOC Inactive " | |
377 | : ""); | |
378 | return buf; | |
379 | } | |
380 | ||
cc9f21da | 381 | static void zebra_evpn_dad_mac_auto_recovery_exp(struct thread *t) |
b2998086 PR |
382 | { |
383 | struct zebra_vrf *zvrf = NULL; | |
3198b2b3 | 384 | struct zebra_mac *mac = NULL; |
f6371c34 | 385 | struct zebra_evpn *zevpn = NULL; |
b2998086 | 386 | struct listnode *node = NULL; |
72de4110 | 387 | struct zebra_neigh *nbr = NULL; |
b2998086 PR |
388 | |
389 | mac = THREAD_ARG(t); | |
390 | ||
391 | /* since this is asynchronous we need sanity checks*/ | |
392 | zvrf = vrf_info_lookup(mac->zevpn->vrf_id); | |
393 | if (!zvrf) | |
cc9f21da | 394 | return; |
b2998086 | 395 | |
8b5fdf2e | 396 | zevpn = zebra_evpn_lookup(mac->zevpn->vni); |
b2998086 | 397 | if (!zevpn) |
cc9f21da | 398 | return; |
b2998086 PR |
399 | |
400 | mac = zebra_evpn_mac_lookup(zevpn, &mac->macaddr); | |
401 | if (!mac) | |
cc9f21da | 402 | return; |
b2998086 | 403 | |
b16e8004 DS |
404 | if (IS_ZEBRA_DEBUG_VXLAN) { |
405 | char mac_buf[MAC_BUF_SIZE]; | |
406 | ||
b2998086 | 407 | zlog_debug( |
ef7b8be4 DL |
408 | "%s: duplicate addr mac %pEA flags %slearn count %u host count %u auto recovery expired", |
409 | __func__, &mac->macaddr, | |
b16e8004 DS |
410 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
411 | sizeof(mac_buf)), | |
412 | mac->dad_count, listcount(mac->neigh_list)); | |
413 | } | |
b2998086 PR |
414 | |
415 | /* Remove all IPs as duplicate associcated with this MAC */ | |
416 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
417 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) { | |
418 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
419 | ZEBRA_NEIGH_SET_INACTIVE(nbr); | |
420 | else if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE)) | |
421 | zebra_evpn_rem_neigh_install( | |
422 | zevpn, nbr, false /*was_static*/); | |
423 | } | |
24268cd0 | 424 | |
24268cd0 PR |
425 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); |
426 | nbr->dad_count = 0; | |
427 | nbr->detect_start_time.tv_sec = 0; | |
b2998086 PR |
428 | nbr->dad_dup_detect_time = 0; |
429 | } | |
430 | ||
431 | UNSET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
432 | mac->dad_count = 0; | |
433 | mac->detect_start_time.tv_sec = 0; | |
434 | mac->detect_start_time.tv_usec = 0; | |
435 | mac->dad_dup_detect_time = 0; | |
436 | mac->dad_mac_auto_recovery_timer = NULL; | |
437 | ||
438 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
439 | /* Inform to BGP */ | |
440 | if (zebra_evpn_mac_send_add_to_client(zevpn->vni, &mac->macaddr, | |
441 | mac->flags, mac->loc_seq, | |
442 | mac->es)) | |
cc9f21da | 443 | return; |
b2998086 PR |
444 | |
445 | /* Process all neighbors associated with this MAC. */ | |
446 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
447 | 0 /*es_change*/); | |
448 | ||
449 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
450 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
451 | ||
452 | /* Install the entry. */ | |
453 | zebra_evpn_rem_mac_install(zevpn, mac, false /* was_static */); | |
24268cd0 | 454 | } |
24268cd0 PR |
455 | } |
456 | ||
d9d3455e | 457 | static void zebra_evpn_dup_addr_detect_for_mac(struct zebra_vrf *zvrf, |
3198b2b3 | 458 | struct zebra_mac *mac, |
d9d3455e PR |
459 | struct in_addr vtep_ip, |
460 | bool do_dad, bool *is_dup_detect, | |
461 | bool is_local) | |
24268cd0 | 462 | { |
72de4110 | 463 | struct zebra_neigh *nbr; |
24268cd0 PR |
464 | struct listnode *node = NULL; |
465 | struct timeval elapsed = {0, 0}; | |
24268cd0 PR |
466 | bool reset_params = false; |
467 | ||
b2ee2b71 | 468 | if (!(zebra_evpn_do_dup_addr_detect(zvrf) && do_dad)) |
24268cd0 PR |
469 | return; |
470 | ||
471 | /* MAC is detected as duplicate, | |
472 | * Local MAC event -> hold on advertising to BGP. | |
473 | * Remote MAC event -> hold on installing it. | |
474 | */ | |
475 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { | |
b16e8004 DS |
476 | if (IS_ZEBRA_DEBUG_VXLAN) { |
477 | char mac_buf[MAC_BUF_SIZE]; | |
478 | ||
24268cd0 | 479 | zlog_debug( |
ef7b8be4 DL |
480 | "%s: duplicate addr MAC %pEA flags %sskip update to client, learn count %u recover time %u", |
481 | __func__, &mac->macaddr, | |
b16e8004 DS |
482 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
483 | sizeof(mac_buf)), | |
484 | mac->dad_count, zvrf->dad_freeze_time); | |
485 | } | |
24268cd0 PR |
486 | /* For duplicate MAC do not update |
487 | * client but update neigh due to | |
488 | * this MAC update. | |
489 | */ | |
490 | if (zvrf->dad_freeze) | |
491 | *is_dup_detect = true; | |
492 | ||
493 | return; | |
494 | } | |
495 | ||
496 | /* Check if detection time (M-secs) expired. | |
497 | * Reset learn count and detection start time. | |
498 | */ | |
499 | monotime_since(&mac->detect_start_time, &elapsed); | |
500 | reset_params = (elapsed.tv_sec > zvrf->dad_time); | |
501 | if (is_local && !reset_params) { | |
502 | /* RFC-7432: A PE/VTEP that detects a MAC mobility | |
503 | * event via LOCAL learning starts an M-second timer. | |
504 | * | |
505 | * NOTE: This is the START of the probe with count is | |
506 | * 0 during LOCAL learn event. | |
507 | * (mac->dad_count == 0 || elapsed.tv_sec >= zvrf->dad_time) | |
508 | */ | |
509 | reset_params = !mac->dad_count; | |
510 | } | |
511 | ||
512 | if (reset_params) { | |
b16e8004 DS |
513 | if (IS_ZEBRA_DEBUG_VXLAN) { |
514 | char mac_buf[MAC_BUF_SIZE]; | |
515 | ||
24268cd0 | 516 | zlog_debug( |
ef7b8be4 DL |
517 | "%s: duplicate addr MAC %pEA flags %sdetection time passed, reset learn count %u", |
518 | __func__, &mac->macaddr, | |
b16e8004 DS |
519 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
520 | sizeof(mac_buf)), | |
521 | mac->dad_count); | |
522 | } | |
24268cd0 PR |
523 | |
524 | mac->dad_count = 0; | |
525 | /* Start dup. addr detection (DAD) start time, | |
526 | * ONLY during LOCAL learn. | |
527 | */ | |
528 | if (is_local) | |
529 | monotime(&mac->detect_start_time); | |
530 | ||
531 | } else if (!is_local) { | |
532 | /* For REMOTE MAC, increment detection count | |
533 | * ONLY while in probe window, once window passed, | |
534 | * next local learn event should trigger DAD. | |
535 | */ | |
536 | mac->dad_count++; | |
537 | } | |
538 | ||
539 | /* For LOCAL MAC learn event, once count is reset above via either | |
540 | * initial/start detection time or passed the probe time, the count | |
541 | * needs to be incremented. | |
542 | */ | |
543 | if (is_local) | |
544 | mac->dad_count++; | |
545 | ||
546 | if (mac->dad_count >= zvrf->dad_max_moves) { | |
547 | flog_warn(EC_ZEBRA_DUP_MAC_DETECTED, | |
ef7b8be4 DL |
548 | "VNI %u: MAC %pEA detected as duplicate during %s VTEP %pI4", |
549 | mac->zevpn->vni, &mac->macaddr, | |
24268cd0 | 550 | is_local ? "local update, last" : |
9bcef951 | 551 | "remote update, from", &vtep_ip); |
24268cd0 PR |
552 | |
553 | SET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
554 | ||
555 | /* Capture Duplicate detection time */ | |
556 | mac->dad_dup_detect_time = monotime(NULL); | |
557 | ||
558 | /* Mark all IPs/Neighs as duplicate | |
559 | * associcated with this MAC | |
560 | */ | |
561 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
562 | ||
563 | /* Ony Mark IPs which are Local */ | |
564 | if (!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
565 | continue; | |
566 | ||
567 | SET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
568 | ||
569 | nbr->dad_dup_detect_time = monotime(NULL); | |
570 | ||
571 | flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED, | |
ef7b8be4 DL |
572 | "VNI %u: MAC %pEA IP %pIA detected as duplicate during %s update, inherit duplicate from MAC", |
573 | mac->zevpn->vni, &mac->macaddr, &nbr->ip, | |
24268cd0 PR |
574 | is_local ? "local" : "remote"); |
575 | } | |
576 | ||
577 | /* Start auto recovery timer for this MAC */ | |
578 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
579 | if (zvrf->dad_freeze && zvrf->dad_freeze_time) { | |
b16e8004 DS |
580 | if (IS_ZEBRA_DEBUG_VXLAN) { |
581 | char mac_buf[MAC_BUF_SIZE]; | |
582 | ||
24268cd0 | 583 | zlog_debug( |
ef7b8be4 DL |
584 | "%s: duplicate addr MAC %pEA flags %sauto recovery time %u start", |
585 | __func__, &mac->macaddr, | |
b16e8004 DS |
586 | zebra_evpn_zebra_mac_flag_dump( |
587 | mac, mac_buf, sizeof(mac_buf)), | |
588 | zvrf->dad_freeze_time); | |
589 | } | |
24268cd0 PR |
590 | |
591 | thread_add_timer(zrouter.master, | |
b2998086 | 592 | zebra_evpn_dad_mac_auto_recovery_exp, |
24268cd0 PR |
593 | mac, zvrf->dad_freeze_time, |
594 | &mac->dad_mac_auto_recovery_timer); | |
595 | } | |
596 | ||
597 | /* In case of local update, do not inform to client (BGPd), | |
598 | * upd_neigh for neigh sequence change. | |
599 | */ | |
600 | if (zvrf->dad_freeze) | |
601 | *is_dup_detect = true; | |
602 | } | |
603 | } | |
604 | ||
b2998086 PR |
605 | /* |
606 | * Print a specific MAC entry. | |
607 | */ | |
3198b2b3 | 608 | void zebra_evpn_print_mac(struct zebra_mac *mac, void *ctxt, json_object *json) |
24268cd0 | 609 | { |
b2998086 | 610 | struct vty *vty; |
72de4110 | 611 | struct zebra_neigh *n = NULL; |
b2998086 PR |
612 | struct listnode *node = NULL; |
613 | char buf1[ETHER_ADDR_STRLEN]; | |
614 | char buf2[INET6_ADDRSTRLEN]; | |
615 | struct zebra_vrf *zvrf; | |
616 | struct timeval detect_start_time = {0, 0}; | |
617 | char timebuf[MONOTIME_STRLEN]; | |
618 | char thread_buf[THREAD_TIMER_STRLEN]; | |
f1dbb1c7 DS |
619 | time_t uptime; |
620 | char up_str[MONOTIME_STRLEN]; | |
24268cd0 | 621 | |
b2998086 | 622 | zvrf = zebra_vrf_get_evpn(); |
b2998086 PR |
623 | vty = (struct vty *)ctxt; |
624 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
24268cd0 | 625 | |
f1dbb1c7 DS |
626 | uptime = monotime(NULL); |
627 | uptime -= mac->uptime; | |
628 | ||
629 | frrtime_to_interval(uptime, up_str, sizeof(up_str)); | |
630 | ||
b2998086 PR |
631 | if (json) { |
632 | json_object *json_mac = json_object_new_object(); | |
24268cd0 | 633 | |
b2998086 PR |
634 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
635 | struct interface *ifp; | |
636 | vlanid_t vid; | |
24268cd0 | 637 | |
b2998086 PR |
638 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
639 | json_object_string_add(json_mac, "type", "local"); | |
640 | if (ifp) { | |
641 | json_object_string_add(json_mac, "intf", | |
642 | ifp->name); | |
643 | json_object_int_add(json_mac, "ifindex", | |
644 | ifp->ifindex); | |
645 | } | |
646 | if (vid) | |
647 | json_object_int_add(json_mac, "vlan", vid); | |
648 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
649 | json_object_string_add(json_mac, "type", "remote"); | |
283ef1b0 PJD |
650 | if (mac->es) |
651 | json_object_string_add(json_mac, "remoteEs", | |
652 | mac->es->esi_str); | |
653 | else | |
654 | json_object_string_addf( | |
655 | json_mac, "remoteVtep", "%pI4", | |
656 | &mac->fwd_info.r_vtep_ip); | |
b2998086 PR |
657 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) |
658 | json_object_string_add(json_mac, "type", "auto"); | |
24268cd0 | 659 | |
b2998086 PR |
660 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) |
661 | json_object_boolean_true_add(json_mac, "stickyMac"); | |
24268cd0 | 662 | |
243b74ed AK |
663 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) |
664 | json_object_boolean_true_add(json_mac, "sviMac"); | |
665 | ||
b2998086 PR |
666 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) |
667 | json_object_boolean_true_add(json_mac, | |
668 | "defaultGateway"); | |
24268cd0 | 669 | |
b2998086 PR |
670 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) |
671 | json_object_boolean_true_add(json_mac, | |
672 | "remoteGatewayMac"); | |
24268cd0 | 673 | |
f1dbb1c7 | 674 | json_object_string_add(json_mac, "uptime", up_str); |
b2998086 PR |
675 | json_object_int_add(json_mac, "localSequence", mac->loc_seq); |
676 | json_object_int_add(json_mac, "remoteSequence", mac->rem_seq); | |
24268cd0 | 677 | |
b2998086 PR |
678 | json_object_int_add(json_mac, "detectionCount", mac->dad_count); |
679 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
680 | json_object_boolean_true_add(json_mac, "isDuplicate"); | |
681 | else | |
682 | json_object_boolean_false_add(json_mac, "isDuplicate"); | |
24268cd0 | 683 | |
b2998086 PR |
684 | json_object_int_add(json_mac, "syncNeighCount", |
685 | mac->sync_neigh_cnt); | |
686 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) | |
687 | json_object_boolean_true_add(json_mac, "localInactive"); | |
688 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY)) | |
689 | json_object_boolean_true_add(json_mac, "peerProxy"); | |
690 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
691 | json_object_boolean_true_add(json_mac, "peerActive"); | |
692 | if (mac->hold_timer) | |
693 | json_object_string_add( | |
694 | json_mac, "peerActiveHold", | |
695 | thread_timer_to_hhmmss(thread_buf, | |
696 | sizeof(thread_buf), | |
697 | mac->hold_timer)); | |
698 | if (mac->es) | |
699 | json_object_string_add(json_mac, "esi", | |
700 | mac->es->esi_str); | |
701 | /* print all the associated neigh */ | |
702 | if (!listcount(mac->neigh_list)) | |
703 | json_object_string_add(json_mac, "neighbors", "none"); | |
704 | else { | |
705 | json_object *json_active_nbrs = json_object_new_array(); | |
706 | json_object *json_inactive_nbrs = | |
707 | json_object_new_array(); | |
708 | json_object *json_nbrs = json_object_new_object(); | |
24268cd0 | 709 | |
b2998086 PR |
710 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { |
711 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) | |
712 | json_object_array_add( | |
713 | json_active_nbrs, | |
714 | json_object_new_string( | |
715 | ipaddr2str( | |
716 | &n->ip, buf2, | |
717 | sizeof(buf2)))); | |
718 | else | |
719 | json_object_array_add( | |
720 | json_inactive_nbrs, | |
721 | json_object_new_string( | |
722 | ipaddr2str( | |
723 | &n->ip, buf2, | |
724 | sizeof(buf2)))); | |
725 | } | |
24268cd0 | 726 | |
b2998086 PR |
727 | json_object_object_add(json_nbrs, "active", |
728 | json_active_nbrs); | |
729 | json_object_object_add(json_nbrs, "inactive", | |
730 | json_inactive_nbrs); | |
731 | json_object_object_add(json_mac, "neighbors", | |
732 | json_nbrs); | |
24268cd0 | 733 | } |
24268cd0 | 734 | |
b2998086 PR |
735 | json_object_object_add(json, buf1, json_mac); |
736 | } else { | |
737 | vty_out(vty, "MAC: %s\n", buf1); | |
24268cd0 | 738 | |
b2998086 PR |
739 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
740 | struct interface *ifp; | |
741 | vlanid_t vid; | |
24268cd0 | 742 | |
b2998086 | 743 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
24268cd0 | 744 | |
b2998086 PR |
745 | if (mac->es) |
746 | vty_out(vty, " ESI: %s\n", mac->es->esi_str); | |
24268cd0 | 747 | |
b2998086 PR |
748 | if (ifp) |
749 | vty_out(vty, " Intf: %s(%u)", ifp->name, | |
750 | ifp->ifindex); | |
751 | else | |
752 | vty_out(vty, " Intf: -"); | |
753 | vty_out(vty, " VLAN: %u", vid); | |
754 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
755 | if (mac->es) | |
756 | vty_out(vty, " Remote ES: %s", | |
757 | mac->es->esi_str); | |
758 | else | |
9bcef951 MS |
759 | vty_out(vty, " Remote VTEP: %pI4", |
760 | &mac->fwd_info.r_vtep_ip); | |
b2998086 PR |
761 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { |
762 | vty_out(vty, " Auto Mac "); | |
763 | } | |
24268cd0 | 764 | |
b2998086 PR |
765 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) |
766 | vty_out(vty, " Sticky Mac "); | |
24268cd0 | 767 | |
243b74ed AK |
768 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) |
769 | vty_out(vty, " SVI-Mac "); | |
770 | ||
b2998086 PR |
771 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) |
772 | vty_out(vty, " Default-gateway Mac "); | |
773 | ||
774 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) | |
775 | vty_out(vty, " Remote-gateway Mac "); | |
776 | ||
777 | vty_out(vty, "\n"); | |
778 | vty_out(vty, " Sync-info: neigh#: %u", mac->sync_neigh_cnt); | |
779 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) | |
24268cd0 | 780 | vty_out(vty, " local-inactive"); |
b2998086 | 781 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY)) |
24268cd0 | 782 | vty_out(vty, " peer-proxy"); |
b2998086 | 783 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) |
24268cd0 | 784 | vty_out(vty, " peer-active"); |
b2998086 | 785 | if (mac->hold_timer) |
24268cd0 | 786 | vty_out(vty, " (ht: %s)", |
b2998086 PR |
787 | thread_timer_to_hhmmss(thread_buf, |
788 | sizeof(thread_buf), | |
789 | mac->hold_timer)); | |
790 | vty_out(vty, "\n"); | |
f1dbb1c7 | 791 | vty_out(vty, " Local Seq: %u Remote Seq: %u\n", mac->loc_seq, |
b2998086 | 792 | mac->rem_seq); |
f1dbb1c7 | 793 | vty_out(vty, " Uptime: %s\n", up_str); |
24268cd0 | 794 | |
b2998086 | 795 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { |
24268cd0 | 796 | vty_out(vty, " Duplicate, detected at %s", |
b2998086 | 797 | time_to_string(mac->dad_dup_detect_time, |
24268cd0 | 798 | timebuf)); |
b2998086 PR |
799 | } else if (mac->dad_count) { |
800 | monotime_since(&mac->detect_start_time, | |
24268cd0 PR |
801 | &detect_start_time); |
802 | if (detect_start_time.tv_sec <= zvrf->dad_time) { | |
b2998086 | 803 | time_to_string(mac->detect_start_time.tv_sec, |
24268cd0 PR |
804 | timebuf); |
805 | vty_out(vty, | |
806 | " Duplicate detection started at %s, detection count %u\n", | |
b2998086 | 807 | timebuf, mac->dad_count); |
24268cd0 PR |
808 | } |
809 | } | |
24268cd0 | 810 | |
b2998086 PR |
811 | /* print all the associated neigh */ |
812 | vty_out(vty, " Neighbors:\n"); | |
813 | if (!listcount(mac->neigh_list)) | |
814 | vty_out(vty, " No Neighbors\n"); | |
815 | else { | |
816 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { | |
817 | vty_out(vty, " %s %s\n", | |
818 | ipaddr2str(&n->ip, buf2, sizeof(buf2)), | |
819 | (IS_ZEBRA_NEIGH_ACTIVE(n) | |
820 | ? "Active" | |
821 | : "Inactive")); | |
822 | } | |
823 | } | |
24268cd0 | 824 | |
b2998086 | 825 | vty_out(vty, "\n"); |
24268cd0 PR |
826 | } |
827 | } | |
828 | ||
3198b2b3 | 829 | static char *zebra_evpn_print_mac_flags(struct zebra_mac *mac, char *flags_buf, |
700cae76 | 830 | size_t flags_buf_sz) |
24268cd0 | 831 | { |
b2998086 | 832 | snprintf(flags_buf, flags_buf_sz, "%s%s%s%s", |
00a7710c AK |
833 | mac->sync_neigh_cnt ? "N" : "", |
834 | (mac->flags & ZEBRA_MAC_ES_PEER_ACTIVE) ? "P" : "", | |
835 | (mac->flags & ZEBRA_MAC_ES_PEER_PROXY) ? "X" : "", | |
836 | (mac->flags & ZEBRA_MAC_LOCAL_INACTIVE) ? "I" : ""); | |
24268cd0 PR |
837 | |
838 | return flags_buf; | |
839 | } | |
840 | ||
841 | /* | |
b2998086 | 842 | * Print MAC hash entry - called for display of all MACs. |
24268cd0 | 843 | */ |
b2998086 | 844 | void zebra_evpn_print_mac_hash(struct hash_bucket *bucket, void *ctxt) |
24268cd0 PR |
845 | { |
846 | struct vty *vty; | |
b2998086 | 847 | json_object *json_mac_hdr = NULL, *json_mac = NULL; |
3198b2b3 | 848 | struct zebra_mac *mac; |
24268cd0 | 849 | char buf1[ETHER_ADDR_STRLEN]; |
9bcef951 | 850 | char addr_buf[PREFIX_STRLEN]; |
b2998086 | 851 | struct mac_walk_ctx *wctx = ctxt; |
24268cd0 PR |
852 | char flags_buf[6]; |
853 | ||
854 | vty = wctx->vty; | |
b2998086 | 855 | json_mac_hdr = wctx->json; |
3198b2b3 | 856 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
857 | |
858 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
859 | ||
860 | if (json_mac_hdr) | |
861 | json_mac = json_object_new_object(); | |
24268cd0 | 862 | |
b2998086 PR |
863 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
864 | struct interface *ifp; | |
865 | vlanid_t vid; | |
24268cd0 | 866 | |
b2998086 | 867 | if (wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) |
24268cd0 PR |
868 | return; |
869 | ||
b2998086 PR |
870 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
871 | if (json_mac_hdr == NULL) { | |
872 | vty_out(vty, "%-17s %-6s %-5s %-30s", buf1, "local", | |
873 | zebra_evpn_print_mac_flags(mac, flags_buf, | |
874 | sizeof(flags_buf)), | |
875 | ifp ? ifp->name : "-"); | |
876 | } else { | |
877 | json_object_string_add(json_mac, "type", "local"); | |
878 | if (ifp) | |
879 | json_object_string_add(json_mac, "intf", | |
880 | ifp->name); | |
881 | } | |
882 | if (vid) { | |
883 | if (json_mac_hdr == NULL) | |
884 | vty_out(vty, " %-5u", vid); | |
885 | else | |
886 | json_object_int_add(json_mac, "vlan", vid); | |
887 | } else /* No vid? fill out the space */ | |
888 | if (json_mac_hdr == NULL) | |
889 | vty_out(vty, " %-5s", ""); | |
890 | if (json_mac_hdr == NULL) { | |
891 | vty_out(vty, " %u/%u", mac->loc_seq, mac->rem_seq); | |
892 | vty_out(vty, "\n"); | |
24268cd0 | 893 | } else { |
b2998086 PR |
894 | json_object_int_add(json_mac, "localSequence", |
895 | mac->loc_seq); | |
896 | json_object_int_add(json_mac, "remoteSequence", | |
897 | mac->rem_seq); | |
898 | json_object_int_add(json_mac, "detectionCount", | |
899 | mac->dad_count); | |
900 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
901 | json_object_boolean_true_add(json_mac, | |
24268cd0 PR |
902 | "isDuplicate"); |
903 | else | |
b2998086 | 904 | json_object_boolean_false_add(json_mac, |
24268cd0 | 905 | "isDuplicate"); |
b2998086 | 906 | json_object_object_add(json_mac_hdr, buf1, json_mac); |
24268cd0 | 907 | } |
b2998086 | 908 | |
24268cd0 | 909 | wctx->count++; |
b2998086 PR |
910 | |
911 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
912 | ||
913 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
914 | && !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, | |
915 | &wctx->r_vtep_ip)) | |
24268cd0 PR |
916 | return; |
917 | ||
b2998086 PR |
918 | if (json_mac_hdr == NULL) { |
919 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
920 | && (wctx->count == 0)) { | |
921 | vty_out(vty, "\nVNI %u\n\n", wctx->zevpn->vni); | |
922 | vty_out(vty, "%-17s %-6s %-5s%-30s %-5s %s\n", | |
923 | "MAC", "Type", "Flags", | |
924 | "Intf/Remote ES/VTEP", "VLAN", | |
925 | "Seq #'s"); | |
24268cd0 | 926 | } |
9bcef951 MS |
927 | if (mac->es == NULL) |
928 | inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip, | |
929 | addr_buf, sizeof(addr_buf)); | |
930 | ||
b2998086 PR |
931 | vty_out(vty, "%-17s %-6s %-5s %-30s %-5s %u/%u\n", buf1, |
932 | "remote", | |
933 | zebra_evpn_print_mac_flags(mac, flags_buf, | |
9bcef951 MS |
934 | sizeof(flags_buf)), |
935 | mac->es ? mac->es->esi_str : addr_buf, | |
b2998086 PR |
936 | "", mac->loc_seq, mac->rem_seq); |
937 | } else { | |
938 | json_object_string_add(json_mac, "type", "remote"); | |
283ef1b0 PJD |
939 | if (mac->es) |
940 | json_object_string_add(json_mac, "remoteEs", | |
941 | mac->es->esi_str); | |
942 | else | |
943 | json_object_string_addf( | |
944 | json_mac, "remoteVtep", "%pI4", | |
945 | &mac->fwd_info.r_vtep_ip); | |
b2998086 PR |
946 | json_object_object_add(json_mac_hdr, buf1, json_mac); |
947 | json_object_int_add(json_mac, "localSequence", | |
948 | mac->loc_seq); | |
949 | json_object_int_add(json_mac, "remoteSequence", | |
950 | mac->rem_seq); | |
951 | json_object_int_add(json_mac, "detectionCount", | |
952 | mac->dad_count); | |
953 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
954 | json_object_boolean_true_add(json_mac, | |
955 | "isDuplicate"); | |
956 | else | |
957 | json_object_boolean_false_add(json_mac, | |
958 | "isDuplicate"); | |
959 | } | |
24268cd0 | 960 | |
b2998086 PR |
961 | wctx->count++; |
962 | } | |
24268cd0 PR |
963 | } |
964 | ||
965 | /* | |
b2998086 | 966 | * Print MAC hash entry in detail - called for display of all MACs. |
24268cd0 | 967 | */ |
b2998086 | 968 | void zebra_evpn_print_mac_hash_detail(struct hash_bucket *bucket, void *ctxt) |
24268cd0 | 969 | { |
b2998086 PR |
970 | struct vty *vty; |
971 | json_object *json_mac_hdr = NULL; | |
3198b2b3 | 972 | struct zebra_mac *mac; |
b2998086 PR |
973 | struct mac_walk_ctx *wctx = ctxt; |
974 | char buf1[ETHER_ADDR_STRLEN]; | |
24268cd0 | 975 | |
b2998086 PR |
976 | vty = wctx->vty; |
977 | json_mac_hdr = wctx->json; | |
3198b2b3 | 978 | mac = (struct zebra_mac *)bucket->data; |
b2998086 | 979 | if (!mac) |
24268cd0 PR |
980 | return; |
981 | ||
b2998086 PR |
982 | wctx->count++; |
983 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
24268cd0 | 984 | |
b2998086 | 985 | zebra_evpn_print_mac(mac, vty, json_mac_hdr); |
24268cd0 PR |
986 | } |
987 | ||
988 | /* | |
b2998086 | 989 | * Inform BGP about local MACIP. |
24268cd0 | 990 | */ |
7f7e49d1 MS |
991 | int zebra_evpn_macip_send_msg_to_client(vni_t vni, |
992 | const struct ethaddr *macaddr, | |
1a3bd37f | 993 | const struct ipaddr *ip, uint8_t flags, |
b2998086 PR |
994 | uint32_t seq, int state, |
995 | struct zebra_evpn_es *es, uint16_t cmd) | |
24268cd0 | 996 | { |
b2998086 PR |
997 | int ipa_len; |
998 | struct zserv *client = NULL; | |
999 | struct stream *s = NULL; | |
1000 | esi_t *esi = es ? &es->esi : zero_esi; | |
24268cd0 | 1001 | |
b2998086 PR |
1002 | client = zserv_find_client(ZEBRA_ROUTE_BGP, 0); |
1003 | /* BGP may not be running. */ | |
1004 | if (!client) | |
1005 | return 0; | |
24268cd0 | 1006 | |
b2998086 | 1007 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); |
24268cd0 | 1008 | |
b2998086 PR |
1009 | zclient_create_header(s, cmd, zebra_vrf_get_evpn_id()); |
1010 | stream_putl(s, vni); | |
1011 | stream_put(s, macaddr->octet, ETH_ALEN); | |
1012 | if (ip) { | |
1013 | ipa_len = 0; | |
1014 | if (IS_IPADDR_V4(ip)) | |
1015 | ipa_len = IPV4_MAX_BYTELEN; | |
1016 | else if (IS_IPADDR_V6(ip)) | |
1017 | ipa_len = IPV6_MAX_BYTELEN; | |
24268cd0 | 1018 | |
b2998086 PR |
1019 | stream_putl(s, ipa_len); /* IP address length */ |
1020 | if (ipa_len) | |
1021 | stream_put(s, &ip->ip.addr, ipa_len); /* IP address */ | |
1022 | } else | |
1023 | stream_putl(s, 0); /* Just MAC. */ | |
24268cd0 | 1024 | |
b2998086 PR |
1025 | if (cmd == ZEBRA_MACIP_ADD) { |
1026 | stream_putc(s, flags); /* sticky mac/gateway mac */ | |
1027 | stream_putl(s, seq); /* sequence number */ | |
1028 | stream_put(s, esi, sizeof(esi_t)); | |
24268cd0 | 1029 | } else { |
b2998086 PR |
1030 | stream_putl(s, state); /* state - active/inactive */ |
1031 | } | |
24268cd0 | 1032 | |
24268cd0 | 1033 | |
b2998086 PR |
1034 | /* Write packet size. */ |
1035 | stream_putw_at(s, 0, stream_get_endp(s)); | |
24268cd0 | 1036 | |
bf902d4c DS |
1037 | if (IS_ZEBRA_DEBUG_VXLAN) { |
1038 | char flag_buf[MACIP_BUF_SIZE]; | |
1039 | ||
b2998086 | 1040 | zlog_debug( |
ef7b8be4 | 1041 | "Send MACIP %s f %s MAC %pEA IP %pIA seq %u L2-VNI %u ESI %s to %s", |
bf902d4c DS |
1042 | (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1043 | zclient_evpn_dump_macip_flags(flags, flag_buf, | |
1044 | sizeof(flag_buf)), | |
ef7b8be4 | 1045 | macaddr, ip, seq, vni, |
b2998086 PR |
1046 | es ? es->esi_str : "-", |
1047 | zebra_route_string(client->proto)); | |
bf902d4c | 1048 | } |
24268cd0 | 1049 | |
b2998086 PR |
1050 | if (cmd == ZEBRA_MACIP_ADD) |
1051 | client->macipadd_cnt++; | |
1052 | else | |
1053 | client->macipdel_cnt++; | |
24268cd0 | 1054 | |
b2998086 PR |
1055 | return zserv_send_message(client, s); |
1056 | } | |
24268cd0 | 1057 | |
b2998086 PR |
1058 | static unsigned int mac_hash_keymake(const void *p) |
1059 | { | |
3198b2b3 | 1060 | const struct zebra_mac *pmac = p; |
b2998086 | 1061 | const void *pnt = (void *)pmac->macaddr.octet; |
24268cd0 | 1062 | |
b2998086 | 1063 | return jhash(pnt, ETH_ALEN, 0xa5a5a55a); |
24268cd0 PR |
1064 | } |
1065 | ||
1066 | /* | |
b2998086 | 1067 | * Compare two MAC addresses. |
24268cd0 | 1068 | */ |
b2998086 | 1069 | static bool mac_cmp(const void *p1, const void *p2) |
24268cd0 | 1070 | { |
3198b2b3 DS |
1071 | const struct zebra_mac *pmac1 = p1; |
1072 | const struct zebra_mac *pmac2 = p2; | |
24268cd0 | 1073 | |
b2998086 PR |
1074 | if (pmac1 == NULL && pmac2 == NULL) |
1075 | return true; | |
24268cd0 | 1076 | |
b2998086 PR |
1077 | if (pmac1 == NULL || pmac2 == NULL) |
1078 | return false; | |
24268cd0 | 1079 | |
b2998086 PR |
1080 | return (memcmp(pmac1->macaddr.octet, pmac2->macaddr.octet, ETH_ALEN) |
1081 | == 0); | |
1082 | } | |
24268cd0 | 1083 | |
b2998086 PR |
1084 | /* |
1085 | * Callback to allocate MAC hash entry. | |
1086 | */ | |
1087 | static void *zebra_evpn_mac_alloc(void *p) | |
1088 | { | |
3198b2b3 DS |
1089 | const struct zebra_mac *tmp_mac = p; |
1090 | struct zebra_mac *mac; | |
24268cd0 | 1091 | |
3198b2b3 | 1092 | mac = XCALLOC(MTYPE_MAC, sizeof(struct zebra_mac)); |
b2998086 | 1093 | *mac = *tmp_mac; |
24268cd0 | 1094 | |
b2998086 PR |
1095 | return ((void *)mac); |
1096 | } | |
24268cd0 | 1097 | |
b2998086 PR |
1098 | /* |
1099 | * Add MAC entry. | |
1100 | */ | |
3198b2b3 DS |
1101 | struct zebra_mac *zebra_evpn_mac_add(struct zebra_evpn *zevpn, |
1102 | const struct ethaddr *macaddr) | |
b2998086 | 1103 | { |
3198b2b3 DS |
1104 | struct zebra_mac tmp_mac; |
1105 | struct zebra_mac *mac = NULL; | |
24268cd0 | 1106 | |
6006b807 | 1107 | memset(&tmp_mac, 0, sizeof(tmp_mac)); |
b2998086 PR |
1108 | memcpy(&tmp_mac.macaddr, macaddr, ETH_ALEN); |
1109 | mac = hash_get(zevpn->mac_table, &tmp_mac, zebra_evpn_mac_alloc); | |
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 | ||
b2998086 PR |
1145 | /* force de-ref any ES entry linked to the MAC */ |
1146 | zebra_evpn_es_mac_deref_entry(mac); | |
24268cd0 | 1147 | |
8b07f173 AK |
1148 | /* remove links to the destination access port */ |
1149 | zebra_evpn_mac_clear_fwd_info(mac); | |
1150 | ||
b2998086 PR |
1151 | /* Cancel proxy hold timer */ |
1152 | zebra_evpn_mac_stop_hold_timer(mac); | |
24268cd0 | 1153 | |
b2998086 PR |
1154 | /* Cancel auto recovery */ |
1155 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
24268cd0 | 1156 | |
d5fdae8f CS |
1157 | /* If the MAC is freed before the neigh we will end up |
1158 | * with a stale pointer against the neigh. | |
1159 | * The situation can arise when a MAC is in remote state | |
1160 | * and its associated neigh is local state. | |
1161 | * zebra_evpn_cfg_cleanup() cleans up remote neighs and MACs. | |
1162 | * Instead of deleting remote MAC, if its neigh list is non-empty | |
1163 | * (associated to local neighs), mark the MAC as AUTO. | |
1164 | */ | |
1165 | if (!list_isempty(mac->neigh_list)) { | |
1166 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1167 | zlog_debug( | |
1168 | "MAC %pEA (flags 0x%x vni %u) has non-empty neigh list " | |
1169 | "count %u, mark MAC as AUTO", | |
1170 | &mac->macaddr, mac->flags, zevpn->vni, | |
1171 | listcount(mac->neigh_list)); | |
1172 | ||
1173 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
1174 | return 0; | |
1175 | } | |
1176 | ||
b2998086 | 1177 | list_delete(&mac->neigh_list); |
24268cd0 | 1178 | |
b2998086 PR |
1179 | /* Free the VNI hash entry and allocated memory. */ |
1180 | tmp_mac = hash_release(zevpn->mac_table, mac); | |
1181 | XFREE(MTYPE_MAC, tmp_mac); | |
24268cd0 | 1182 | |
b2998086 PR |
1183 | return 0; |
1184 | } | |
24268cd0 | 1185 | |
852d9f97 SW |
1186 | /* |
1187 | * Add Auto MAC entry. | |
1188 | */ | |
1189 | struct zebra_mac *zebra_evpn_mac_add_auto(struct zebra_evpn *zevpn, | |
1190 | const struct ethaddr *macaddr) | |
1191 | { | |
1192 | struct zebra_mac *mac; | |
1193 | ||
1194 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1195 | if (!mac) | |
1196 | return NULL; | |
1197 | ||
1198 | zebra_evpn_mac_clear_fwd_info(mac); | |
1199 | memset(&mac->flags, 0, sizeof(uint32_t)); | |
1200 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
1201 | ||
1202 | return mac; | |
1203 | } | |
1204 | ||
b2998086 | 1205 | static bool zebra_evpn_check_mac_del_from_db(struct mac_walk_ctx *wctx, |
3198b2b3 | 1206 | struct zebra_mac *mac) |
b2998086 PR |
1207 | { |
1208 | if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_LOCAL)) | |
1209 | return true; | |
1210 | else if ((wctx->flags & DEL_REMOTE_MAC) | |
1211 | && (mac->flags & ZEBRA_MAC_REMOTE)) | |
1212 | return true; | |
1213 | else if ((wctx->flags & DEL_REMOTE_MAC_FROM_VTEP) | |
1214 | && (mac->flags & ZEBRA_MAC_REMOTE) | |
1215 | && IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &wctx->r_vtep_ip)) | |
1216 | return true; | |
1217 | else if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_AUTO) | |
1218 | && !listcount(mac->neigh_list)) { | |
1219 | if (IS_ZEBRA_DEBUG_VXLAN) { | |
b16e8004 | 1220 | char mac_buf[MAC_BUF_SIZE]; |
24268cd0 | 1221 | |
24268cd0 | 1222 | zlog_debug( |
ef7b8be4 DL |
1223 | "%s: Del MAC %pEA flags %s", __func__, |
1224 | &mac->macaddr, | |
b16e8004 DS |
1225 | zebra_evpn_zebra_mac_flag_dump( |
1226 | mac, mac_buf, sizeof(mac_buf))); | |
b2998086 PR |
1227 | } |
1228 | wctx->uninstall = 0; | |
24268cd0 | 1229 | |
b2998086 PR |
1230 | return true; |
1231 | } | |
24268cd0 | 1232 | |
b2998086 PR |
1233 | return false; |
1234 | } | |
24268cd0 | 1235 | |
b2998086 PR |
1236 | /* |
1237 | * Free MAC hash entry (callback) | |
1238 | */ | |
1239 | static void zebra_evpn_mac_del_hash_entry(struct hash_bucket *bucket, void *arg) | |
1240 | { | |
1241 | struct mac_walk_ctx *wctx = arg; | |
3198b2b3 | 1242 | struct zebra_mac *mac = bucket->data; |
24268cd0 | 1243 | |
b2998086 PR |
1244 | if (zebra_evpn_check_mac_del_from_db(wctx, mac)) { |
1245 | if (wctx->upd_client && (mac->flags & ZEBRA_MAC_LOCAL)) { | |
1246 | zebra_evpn_mac_send_del_to_client(wctx->zevpn->vni, | |
1247 | &mac->macaddr, | |
1248 | mac->flags, false); | |
1249 | } | |
1250 | if (wctx->uninstall) { | |
1251 | if (zebra_evpn_mac_is_static(mac)) | |
1252 | zebra_evpn_sync_mac_dp_install( | |
1253 | mac, false /* set_inactive */, | |
1254 | true /* force_clear_static */, | |
1255 | __func__); | |
24268cd0 | 1256 | |
b2998086 | 1257 | if (mac->flags & ZEBRA_MAC_REMOTE) |
f3722826 AK |
1258 | zebra_evpn_rem_mac_uninstall(wctx->zevpn, mac, |
1259 | false /*force*/); | |
24268cd0 | 1260 | } |
b2998086 PR |
1261 | |
1262 | zebra_evpn_mac_del(wctx->zevpn, mac); | |
24268cd0 PR |
1263 | } |
1264 | ||
24268cd0 PR |
1265 | return; |
1266 | } | |
1267 | ||
24268cd0 | 1268 | /* |
b2998086 | 1269 | * Delete all MAC entries for this EVPN. |
24268cd0 | 1270 | */ |
f6371c34 DS |
1271 | void zebra_evpn_mac_del_all(struct zebra_evpn *zevpn, int uninstall, |
1272 | int upd_client, uint32_t flags) | |
24268cd0 | 1273 | { |
b2998086 | 1274 | struct mac_walk_ctx wctx; |
24268cd0 | 1275 | |
b2998086 | 1276 | if (!zevpn->mac_table) |
24268cd0 PR |
1277 | return; |
1278 | ||
6006b807 | 1279 | memset(&wctx, 0, sizeof(wctx)); |
b2998086 PR |
1280 | wctx.zevpn = zevpn; |
1281 | wctx.uninstall = uninstall; | |
1282 | wctx.upd_client = upd_client; | |
1283 | wctx.flags = flags; | |
24268cd0 | 1284 | |
b2998086 PR |
1285 | hash_iterate(zevpn->mac_table, zebra_evpn_mac_del_hash_entry, &wctx); |
1286 | } | |
24268cd0 | 1287 | |
b2998086 PR |
1288 | /* |
1289 | * Look up MAC hash entry. | |
1290 | */ | |
3198b2b3 DS |
1291 | struct zebra_mac *zebra_evpn_mac_lookup(struct zebra_evpn *zevpn, |
1292 | const struct ethaddr *mac) | |
b2998086 | 1293 | { |
3198b2b3 DS |
1294 | struct zebra_mac tmp; |
1295 | struct zebra_mac *pmac; | |
24268cd0 | 1296 | |
b2998086 PR |
1297 | memset(&tmp, 0, sizeof(tmp)); |
1298 | memcpy(&tmp.macaddr, mac, ETH_ALEN); | |
1299 | pmac = hash_lookup(zevpn->mac_table, &tmp); | |
24268cd0 | 1300 | |
b2998086 PR |
1301 | return pmac; |
1302 | } | |
24268cd0 | 1303 | |
b2998086 PR |
1304 | /* |
1305 | * Inform BGP about local MAC addition. | |
1306 | */ | |
1a3bd37f | 1307 | int zebra_evpn_mac_send_add_to_client(vni_t vni, const struct ethaddr *macaddr, |
b2998086 PR |
1308 | uint32_t mac_flags, uint32_t seq, |
1309 | struct zebra_evpn_es *es) | |
1310 | { | |
1311 | uint8_t flags = 0; | |
24268cd0 | 1312 | |
b2998086 PR |
1313 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_LOCAL_INACTIVE)) { |
1314 | /* host reachability has not been verified locally */ | |
24268cd0 | 1315 | |
b2998086 PR |
1316 | /* if no ES peer is claiming reachability we can't advertise the |
1317 | * entry | |
1318 | */ | |
1319 | if (!CHECK_FLAG(mac_flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1320 | return 0; | |
24268cd0 | 1321 | |
b2998086 PR |
1322 | /* ES peers are claiming reachability; we will |
1323 | * advertise the entry but with a proxy flag | |
24268cd0 | 1324 | */ |
b2998086 PR |
1325 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT); |
1326 | } | |
24268cd0 | 1327 | |
b2998086 PR |
1328 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_STICKY)) |
1329 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
1330 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_DEF_GW)) | |
1331 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
24268cd0 | 1332 | |
b2998086 PR |
1333 | return zebra_evpn_macip_send_msg_to_client(vni, macaddr, NULL, flags, |
1334 | seq, ZEBRA_NEIGH_ACTIVE, es, | |
1335 | ZEBRA_MACIP_ADD); | |
1336 | } | |
24268cd0 | 1337 | |
b2998086 PR |
1338 | /* |
1339 | * Inform BGP about local MAC deletion. | |
1340 | */ | |
1a3bd37f | 1341 | int zebra_evpn_mac_send_del_to_client(vni_t vni, const struct ethaddr *macaddr, |
b2998086 PR |
1342 | uint32_t flags, bool force) |
1343 | { | |
1344 | if (!force) { | |
1345 | if (CHECK_FLAG(flags, ZEBRA_MAC_LOCAL_INACTIVE) | |
1346 | && !CHECK_FLAG(flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1347 | /* the host was not advertised - nothing to delete */ | |
1348 | return 0; | |
24268cd0 PR |
1349 | } |
1350 | ||
b2998086 PR |
1351 | return zebra_evpn_macip_send_msg_to_client( |
1352 | vni, macaddr, NULL, 0 /* flags */, 0 /* seq */, | |
1353 | ZEBRA_NEIGH_ACTIVE, NULL, ZEBRA_MACIP_DEL); | |
24268cd0 PR |
1354 | } |
1355 | ||
1356 | /* | |
b2998086 | 1357 | * wrapper to create a MAC hash table |
24268cd0 | 1358 | */ |
b2998086 | 1359 | struct hash *zebra_mac_db_create(const char *desc) |
24268cd0 | 1360 | { |
da55bcbc | 1361 | return hash_create_size(8, mac_hash_keymake, mac_cmp, desc); |
24268cd0 PR |
1362 | } |
1363 | ||
b2998086 | 1364 | /* program sync mac flags in the dataplane */ |
3198b2b3 | 1365 | int zebra_evpn_sync_mac_dp_install(struct zebra_mac *mac, bool set_inactive, |
15400f95 | 1366 | bool force_clear_static, const char *caller) |
24268cd0 | 1367 | { |
b2998086 PR |
1368 | struct interface *ifp; |
1369 | bool sticky; | |
1370 | bool set_static; | |
f6371c34 | 1371 | struct zebra_evpn *zevpn = mac->zevpn; |
b2998086 PR |
1372 | vlanid_t vid; |
1373 | struct zebra_if *zif; | |
1374 | struct interface *br_ifp; | |
24268cd0 | 1375 | |
09de6e45 AK |
1376 | /* If the ES-EVI doesn't exist defer install. When the ES-EVI is |
1377 | * created we will attempt to install the mac entry again | |
1378 | */ | |
1379 | if (mac->es) { | |
1380 | struct zebra_evpn_es_evi *es_evi; | |
1381 | ||
1382 | es_evi = zebra_evpn_es_evi_find(mac->es, mac->zevpn); | |
1383 | if (!es_evi) { | |
1384 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
1385 | zlog_debug( | |
1386 | "%s: dp-install sync-mac vni %u mac %pEA es %s 0x%x %sskipped, no es-evi", | |
1387 | caller, zevpn->vni, &mac->macaddr, | |
1388 | mac->es ? mac->es->esi_str : "-", | |
1389 | mac->flags, | |
1390 | set_inactive ? "inactive " : ""); | |
1391 | return -1; | |
1392 | } | |
1393 | } | |
1394 | ||
b2998086 PR |
1395 | /* get the access vlan from the vxlan_device */ |
1396 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); | |
24268cd0 | 1397 | |
b2998086 | 1398 | if (!ifp) { |
b16e8004 DS |
1399 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1400 | char mac_buf[MAC_BUF_SIZE]; | |
1401 | ||
b2998086 | 1402 | zlog_debug( |
b16e8004 | 1403 | "%s: dp-install sync-mac vni %u mac %pEA es %s %s%sskipped, no access-port", |
15400f95 | 1404 | caller, zevpn->vni, &mac->macaddr, |
b16e8004 DS |
1405 | mac->es ? mac->es->esi_str : "-", |
1406 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1407 | sizeof(mac_buf)), | |
b2998086 | 1408 | set_inactive ? "inactive " : ""); |
b16e8004 | 1409 | } |
15400f95 | 1410 | return -1; |
b2998086 | 1411 | } |
24268cd0 | 1412 | |
b2998086 PR |
1413 | zif = ifp->info; |
1414 | br_ifp = zif->brslave_info.br_if; | |
1415 | if (!br_ifp) { | |
b16e8004 DS |
1416 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1417 | char mac_buf[MAC_BUF_SIZE]; | |
1418 | ||
b2998086 | 1419 | zlog_debug( |
b16e8004 | 1420 | "%s: dp-install sync-mac vni %u mac %pEA es %s %s%sskipped, no br", |
15400f95 | 1421 | caller, zevpn->vni, &mac->macaddr, |
b16e8004 DS |
1422 | mac->es ? mac->es->esi_str : "-", |
1423 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1424 | sizeof(mac_buf)), | |
b2998086 | 1425 | set_inactive ? "inactive " : ""); |
b16e8004 | 1426 | } |
15400f95 | 1427 | return -1; |
b2998086 | 1428 | } |
24268cd0 | 1429 | |
b2998086 PR |
1430 | sticky = !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY); |
1431 | if (force_clear_static) | |
1432 | set_static = false; | |
1433 | else | |
1434 | set_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1435 | |
15400f95 AK |
1436 | /* We can install a local mac that has been synced from the peer |
1437 | * over the VxLAN-overlay/network-port if fast failover is not | |
1438 | * supported and if the local ES is oper-down. | |
1439 | */ | |
1440 | if (mac->es && zebra_evpn_es_local_mac_via_network_port(mac->es)) { | |
b16e8004 DS |
1441 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1442 | char mac_buf[MAC_BUF_SIZE]; | |
1443 | ||
15400f95 | 1444 | zlog_debug( |
b16e8004 | 1445 | "dp-%s sync-nw-mac vni %u mac %pEA es %s %s%s", |
15400f95 AK |
1446 | set_static ? "install" : "uninstall", |
1447 | zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1448 | mac->es ? mac->es->esi_str : "-", |
1449 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1450 | sizeof(mac_buf)), | |
15400f95 | 1451 | set_inactive ? "inactive " : ""); |
b16e8004 | 1452 | } |
15400f95 AK |
1453 | if (set_static) |
1454 | /* XXX - old_static needs to be computed more | |
1455 | * accurately | |
1456 | */ | |
1457 | zebra_evpn_rem_mac_install(zevpn, mac, | |
1458 | true /* old_static */); | |
1459 | else | |
1460 | zebra_evpn_rem_mac_uninstall(zevpn, mac, | |
1461 | false /* force */); | |
1462 | ||
1463 | return 0; | |
1464 | } | |
1465 | ||
b16e8004 DS |
1466 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1467 | char mac_buf[MAC_BUF_SIZE]; | |
1468 | ||
1469 | zlog_debug("dp-install sync-mac vni %u mac %pEA es %s %s%s%s", | |
1470 | zevpn->vni, &mac->macaddr, | |
1471 | mac->es ? mac->es->esi_str : "-", | |
1472 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1473 | sizeof(mac_buf)), | |
1474 | set_static ? "static " : "", | |
1475 | set_inactive ? "inactive " : ""); | |
1476 | } | |
24268cd0 | 1477 | |
b2998086 PR |
1478 | dplane_local_mac_add(ifp, br_ifp, vid, &mac->macaddr, sticky, |
1479 | set_static, set_inactive); | |
15400f95 | 1480 | return 0; |
24268cd0 PR |
1481 | } |
1482 | ||
3198b2b3 DS |
1483 | void zebra_evpn_mac_send_add_del_to_client(struct zebra_mac *mac, |
1484 | bool old_bgp_ready, | |
b2998086 | 1485 | bool new_bgp_ready) |
24268cd0 | 1486 | { |
b2998086 PR |
1487 | if (new_bgp_ready) |
1488 | zebra_evpn_mac_send_add_to_client(mac->zevpn->vni, | |
1489 | &mac->macaddr, mac->flags, | |
1490 | mac->loc_seq, mac->es); | |
1491 | else if (old_bgp_ready) | |
1492 | zebra_evpn_mac_send_del_to_client(mac->zevpn->vni, | |
1493 | &mac->macaddr, mac->flags, | |
1494 | true /* force */); | |
24268cd0 PR |
1495 | } |
1496 | ||
b2998086 PR |
1497 | /* MAC hold timer is used to age out peer-active flag. |
1498 | * | |
1499 | * During this wait time we expect the dataplane component or an | |
1500 | * external neighmgr daemon to probe existing hosts to independently | |
1501 | * establish their presence on the ES. | |
1502 | */ | |
cc9f21da | 1503 | static void zebra_evpn_mac_hold_exp_cb(struct thread *t) |
24268cd0 | 1504 | { |
3198b2b3 | 1505 | struct zebra_mac *mac; |
b2998086 PR |
1506 | bool old_bgp_ready; |
1507 | bool new_bgp_ready; | |
1508 | bool old_static; | |
1509 | bool new_static; | |
24268cd0 PR |
1510 | |
1511 | mac = THREAD_ARG(t); | |
b2998086 PR |
1512 | /* the purpose of the hold timer is to age out the peer-active |
1513 | * flag | |
1514 | */ | |
1515 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
cc9f21da | 1516 | return; |
24268cd0 | 1517 | |
b2998086 PR |
1518 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
1519 | old_static = zebra_evpn_mac_is_static(mac); | |
1520 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1521 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1522 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1523 | |
b16e8004 DS |
1524 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1525 | char mac_buf[MAC_BUF_SIZE]; | |
1526 | ||
24268cd0 | 1527 | zlog_debug( |
ef7b8be4 DL |
1528 | "sync-mac vni %u mac %pEA es %s %shold expired", |
1529 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1530 | mac->es ? mac->es->esi_str : "-", |
1531 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1532 | sizeof(mac_buf))); | |
1533 | } | |
24268cd0 | 1534 | |
b2998086 PR |
1535 | /* re-program the local mac in the dataplane if the mac is no |
1536 | * longer static | |
1537 | */ | |
1538 | if (old_static != new_static) | |
1539 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1540 | false /* force_clear_static */, | |
1541 | __func__); | |
24268cd0 | 1542 | |
b2998086 PR |
1543 | /* inform bgp if needed */ |
1544 | if (old_bgp_ready != new_bgp_ready) | |
1545 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1546 | new_bgp_ready); | |
24268cd0 PR |
1547 | } |
1548 | ||
3198b2b3 | 1549 | static inline void zebra_evpn_mac_start_hold_timer(struct zebra_mac *mac) |
24268cd0 | 1550 | { |
b2998086 PR |
1551 | if (mac->hold_timer) |
1552 | return; | |
24268cd0 | 1553 | |
b16e8004 DS |
1554 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1555 | char mac_buf[MAC_BUF_SIZE]; | |
1556 | ||
24268cd0 | 1557 | zlog_debug( |
ef7b8be4 DL |
1558 | "sync-mac vni %u mac %pEA es %s %shold started", |
1559 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1560 | mac->es ? mac->es->esi_str : "-", |
1561 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1562 | sizeof(mac_buf))); | |
1563 | } | |
b2998086 PR |
1564 | thread_add_timer(zrouter.master, zebra_evpn_mac_hold_exp_cb, mac, |
1565 | zmh_info->mac_hold_time, &mac->hold_timer); | |
24268cd0 PR |
1566 | } |
1567 | ||
3198b2b3 | 1568 | void zebra_evpn_mac_stop_hold_timer(struct zebra_mac *mac) |
24268cd0 | 1569 | { |
b2998086 PR |
1570 | if (!mac->hold_timer) |
1571 | return; | |
24268cd0 | 1572 | |
b16e8004 DS |
1573 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1574 | char mac_buf[MAC_BUF_SIZE]; | |
1575 | ||
b2998086 | 1576 | zlog_debug( |
ef7b8be4 DL |
1577 | "sync-mac vni %u mac %pEA es %s %shold stopped", |
1578 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1579 | mac->es ? mac->es->esi_str : "-", |
1580 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1581 | sizeof(mac_buf))); | |
1582 | } | |
1583 | ||
b2998086 | 1584 | THREAD_OFF(mac->hold_timer); |
24268cd0 PR |
1585 | } |
1586 | ||
3198b2b3 | 1587 | void zebra_evpn_sync_mac_del(struct zebra_mac *mac) |
24268cd0 | 1588 | { |
b2998086 PR |
1589 | bool old_static; |
1590 | bool new_static; | |
24268cd0 | 1591 | |
b16e8004 DS |
1592 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1593 | char mac_buf[MAC_BUF_SIZE]; | |
1594 | ||
b2998086 | 1595 | zlog_debug( |
ef7b8be4 DL |
1596 | "sync-mac del vni %u mac %pEA es %s seq %d f %s", |
1597 | mac->zevpn->vni, &mac->macaddr, | |
b2998086 | 1598 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
1599 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1600 | sizeof(mac_buf))); | |
1601 | } | |
1602 | ||
b2998086 PR |
1603 | old_static = zebra_evpn_mac_is_static(mac); |
1604 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1605 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1606 | zebra_evpn_mac_start_hold_timer(mac); | |
1607 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1608 | |
b2998086 PR |
1609 | if (old_static != new_static) |
1610 | /* program the local mac in the kernel */ | |
1611 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1612 | false /* force_clear_static */, | |
1613 | __func__); | |
24268cd0 PR |
1614 | } |
1615 | ||
f6371c34 | 1616 | static inline bool zebra_evpn_mac_is_bgp_seq_ok(struct zebra_evpn *zevpn, |
3198b2b3 | 1617 | struct zebra_mac *mac, |
852d9f97 | 1618 | uint32_t seq, bool sync) |
24268cd0 | 1619 | { |
7d99ad7f | 1620 | char mac_buf[MAC_BUF_SIZE]; |
b2998086 | 1621 | uint32_t tmp_seq; |
16de1338 | 1622 | const char *n_type; |
1e1398e3 | 1623 | bool is_local = false; |
24268cd0 | 1624 | |
16de1338 | 1625 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
b2998086 | 1626 | tmp_seq = mac->loc_seq; |
16de1338 | 1627 | n_type = "local"; |
1e1398e3 | 1628 | is_local = true; |
16de1338 | 1629 | } else { |
b2998086 | 1630 | tmp_seq = mac->rem_seq; |
16de1338 AK |
1631 | n_type = "remote"; |
1632 | } | |
24268cd0 | 1633 | |
b2998086 | 1634 | if (seq < tmp_seq) { |
1e1398e3 SW |
1635 | |
1636 | if (is_local && !zebra_evpn_mac_is_ready_for_bgp(mac->flags)) { | |
1637 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || IS_ZEBRA_DEBUG_VXLAN) | |
1638 | zlog_debug( | |
1639 | "%s-macip not ready vni %u %s-mac %pEA lower seq %u f 0x%x", | |
1640 | sync ? "sync" : "rem", zevpn->vni, | |
1641 | n_type, &mac->macaddr, tmp_seq, | |
1642 | mac->flags); | |
1643 | return true; | |
1644 | } | |
1645 | ||
b2998086 PR |
1646 | /* if the mac was never advertised to bgp we must accept |
1647 | * whatever sequence number bgp sends | |
b2998086 | 1648 | */ |
da823882 | 1649 | if (!is_local && zebra_vxlan_get_accept_bgp_seq()) { |
7d99ad7f SW |
1650 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || |
1651 | IS_ZEBRA_DEBUG_VXLAN) { | |
b2998086 | 1652 | zlog_debug( |
852d9f97 | 1653 | "%s-macip accept vni %u %s-mac %pEA lower seq %u f %s", |
16de1338 | 1654 | sync ? "sync" : "rem", zevpn->vni, |
852d9f97 | 1655 | n_type, &mac->macaddr, tmp_seq, |
b16e8004 DS |
1656 | zebra_evpn_zebra_mac_flag_dump( |
1657 | mac, mac_buf, sizeof(mac_buf))); | |
1658 | } | |
1659 | ||
b2998086 PR |
1660 | return true; |
1661 | } | |
24268cd0 | 1662 | |
b16e8004 | 1663 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || IS_ZEBRA_DEBUG_VXLAN) { |
b2998086 | 1664 | zlog_debug( |
852d9f97 | 1665 | "%s-macip ignore vni %u %s-mac %pEA as existing has higher seq %u f %s", |
16de1338 | 1666 | sync ? "sync" : "rem", zevpn->vni, n_type, |
852d9f97 | 1667 | &mac->macaddr, tmp_seq, |
b16e8004 DS |
1668 | zebra_evpn_zebra_mac_flag_dump( |
1669 | mac, mac_buf, sizeof(mac_buf))); | |
1670 | } | |
7d99ad7f | 1671 | |
b2998086 | 1672 | return false; |
24268cd0 PR |
1673 | } |
1674 | ||
b2998086 | 1675 | return true; |
24268cd0 PR |
1676 | } |
1677 | ||
852d9f97 SW |
1678 | struct zebra_mac *zebra_evpn_proc_sync_mac_update(struct zebra_evpn *zevpn, |
1679 | const struct ethaddr *macaddr, | |
1680 | uint16_t ipa_len, | |
1681 | const struct ipaddr *ipaddr, | |
1682 | uint8_t flags, uint32_t seq, | |
1683 | const esi_t *esi) | |
24268cd0 | 1684 | { |
3198b2b3 | 1685 | struct zebra_mac *mac; |
b2998086 PR |
1686 | bool inform_bgp = false; |
1687 | bool inform_dataplane = false; | |
1688 | bool seq_change = false; | |
1689 | bool es_change = false; | |
1690 | uint32_t tmp_seq; | |
b2998086 PR |
1691 | char ipbuf[INET6_ADDRSTRLEN]; |
1692 | bool old_local = false; | |
1693 | bool old_bgp_ready; | |
1694 | bool new_bgp_ready; | |
852d9f97 | 1695 | bool created = false; |
24268cd0 | 1696 | |
b2998086 PR |
1697 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); |
1698 | if (!mac) { | |
1699 | /* if it is a new local path we need to inform both | |
1700 | * the control protocol and the data-plane | |
1701 | */ | |
1702 | inform_bgp = true; | |
1703 | inform_dataplane = true; | |
24268cd0 | 1704 | |
b2998086 PR |
1705 | /* create the MAC and associate it with the dest ES */ |
1706 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1707 | zebra_evpn_es_mac_ref(mac, esi); | |
24268cd0 | 1708 | |
b2998086 PR |
1709 | /* local mac activated by an ES peer */ |
1710 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
1711 | /* if mac-only route setup peer flags */ | |
1712 | if (!ipa_len) { | |
1713 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) | |
1714 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1715 | else | |
1716 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1717 | } | |
1718 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
1719 | old_bgp_ready = false; | |
1720 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
852d9f97 | 1721 | created = true; |
b2998086 PR |
1722 | } else { |
1723 | uint32_t old_flags; | |
1724 | uint32_t new_flags; | |
1725 | bool old_static; | |
1726 | bool new_static; | |
1727 | bool sticky; | |
1728 | bool remote_gw; | |
24268cd0 | 1729 | |
f1dbb1c7 DS |
1730 | mac->uptime = monotime(NULL); |
1731 | ||
b2998086 PR |
1732 | old_flags = mac->flags; |
1733 | sticky = !!CHECK_FLAG(old_flags, ZEBRA_MAC_STICKY); | |
1734 | remote_gw = !!CHECK_FLAG(old_flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
1735 | if (sticky || remote_gw) { | |
1736 | if (IS_ZEBRA_DEBUG_EVPN_MH_NEIGH) | |
1737 | zlog_debug( | |
ef7b8be4 DL |
1738 | "Ignore sync-macip vni %u mac %pEA%s%s%s%s", |
1739 | zevpn->vni, macaddr, | |
b2998086 PR |
1740 | ipa_len ? " IP " : "", |
1741 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1742 | sizeof(ipbuf)) | |
1743 | : "", | |
1744 | sticky ? " sticky" : "", | |
1745 | remote_gw ? " remote_gw" : ""); | |
b2998086 PR |
1746 | return NULL; |
1747 | } | |
852d9f97 | 1748 | if (!zebra_evpn_mac_is_bgp_seq_ok(zevpn, mac, seq, true)) |
b2998086 | 1749 | return NULL; |
24268cd0 | 1750 | |
b2998086 PR |
1751 | old_local = !!CHECK_FLAG(old_flags, ZEBRA_MAC_LOCAL); |
1752 | old_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1753 | |
b2998086 PR |
1754 | /* re-build the mac flags */ |
1755 | new_flags = 0; | |
1756 | SET_FLAG(new_flags, ZEBRA_MAC_LOCAL); | |
1757 | /* retain old local activity flag */ | |
852d9f97 | 1758 | if (old_flags & ZEBRA_MAC_LOCAL) |
b2998086 | 1759 | new_flags |= (old_flags & ZEBRA_MAC_LOCAL_INACTIVE); |
852d9f97 | 1760 | else |
b2998086 | 1761 | new_flags |= ZEBRA_MAC_LOCAL_INACTIVE; |
852d9f97 | 1762 | |
b2998086 PR |
1763 | if (ipa_len) { |
1764 | /* if mac-ip route do NOT update the peer flags | |
1765 | * i.e. retain only flags as is | |
1766 | */ | |
1767 | new_flags |= (old_flags & ZEBRA_MAC_ALL_PEER_FLAGS); | |
1768 | } else { | |
1769 | /* if mac-only route update peer flags */ | |
1770 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) { | |
1771 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1772 | /* if the mac was peer-active previously we | |
1773 | * need to keep the flag and start the | |
1774 | * holdtimer on it. the peer-active flag is | |
1775 | * cleared on holdtimer expiry. | |
1776 | */ | |
1777 | if (CHECK_FLAG(old_flags, | |
1778 | ZEBRA_MAC_ES_PEER_ACTIVE)) { | |
1779 | SET_FLAG(new_flags, | |
1780 | ZEBRA_MAC_ES_PEER_ACTIVE); | |
1781 | zebra_evpn_mac_start_hold_timer(mac); | |
1782 | } | |
1783 | } else { | |
1784 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1785 | /* stop hold timer if a peer has verified | |
1786 | * reachability | |
1787 | */ | |
1788 | zebra_evpn_mac_stop_hold_timer(mac); | |
1789 | } | |
1790 | } | |
1791 | mac->rem_seq = 0; | |
8b07f173 | 1792 | zebra_evpn_mac_clear_fwd_info(mac); |
b2998086 | 1793 | mac->flags = new_flags; |
24268cd0 | 1794 | |
b16e8004 DS |
1795 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC && (old_flags != new_flags)) { |
1796 | char mac_buf[MAC_BUF_SIZE], omac_buf[MAC_BUF_SIZE]; | |
3198b2b3 | 1797 | struct zebra_mac omac; |
b16e8004 DS |
1798 | |
1799 | omac.flags = old_flags; | |
b2998086 | 1800 | zlog_debug( |
ef7b8be4 DL |
1801 | "sync-mac vni %u mac %pEA old_f %snew_f %s", |
1802 | zevpn->vni, macaddr, | |
b16e8004 DS |
1803 | zebra_evpn_zebra_mac_flag_dump( |
1804 | &omac, omac_buf, sizeof(omac_buf)), | |
1805 | zebra_evpn_zebra_mac_flag_dump( | |
1806 | mac, mac_buf, sizeof(mac_buf))); | |
1807 | } | |
24268cd0 | 1808 | |
b2998086 PR |
1809 | /* update es */ |
1810 | es_change = zebra_evpn_es_mac_ref(mac, esi); | |
1811 | /* if mac dest change - inform both sides */ | |
1812 | if (es_change) { | |
1813 | inform_bgp = true; | |
1814 | inform_dataplane = true; | |
b2998086 | 1815 | } |
8b07f173 | 1816 | |
b2998086 PR |
1817 | /* if peer-flag is being set notify dataplane that the |
1818 | * entry must not be expired because of local inactivity | |
1819 | */ | |
1820 | new_static = zebra_evpn_mac_is_static(mac); | |
1821 | if (old_static != new_static) | |
1822 | inform_dataplane = true; | |
24268cd0 | 1823 | |
b2998086 PR |
1824 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(old_flags); |
1825 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1826 | if (old_bgp_ready != new_bgp_ready) | |
1827 | inform_bgp = true; | |
1828 | } | |
24268cd0 | 1829 | |
24268cd0 | 1830 | |
b2998086 PR |
1831 | /* update sequence number; if that results in a new local sequence |
1832 | * inform bgp | |
1833 | */ | |
1834 | tmp_seq = MAX(mac->loc_seq, seq); | |
1835 | if (tmp_seq != mac->loc_seq) { | |
1836 | mac->loc_seq = tmp_seq; | |
1837 | seq_change = true; | |
1838 | inform_bgp = true; | |
1839 | } | |
24268cd0 | 1840 | |
b16e8004 DS |
1841 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1842 | char mac_buf[MAC_BUF_SIZE]; | |
1843 | ||
ef7b8be4 | 1844 | zlog_debug("sync-mac %s vni %u mac %pEA es %s seq %d f %s%s%s", |
852d9f97 | 1845 | created ? "created" : "updated", zevpn->vni, macaddr, |
b2998086 | 1846 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
1847 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1848 | sizeof(mac_buf)), | |
1849 | inform_bgp ? "inform_bgp" : "", | |
b2998086 | 1850 | inform_dataplane ? " inform_dp" : ""); |
b16e8004 | 1851 | } |
24268cd0 | 1852 | |
b2998086 PR |
1853 | if (inform_bgp) |
1854 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1855 | new_bgp_ready); | |
24268cd0 | 1856 | |
b2998086 PR |
1857 | /* neighs using the mac may need to be re-sent to |
1858 | * bgp with updated info | |
1859 | */ | |
1860 | if (seq_change || es_change || !old_local) | |
1861 | zebra_evpn_process_neigh_on_local_mac_change( | |
1862 | zevpn, mac, seq_change, es_change); | |
24268cd0 | 1863 | |
852d9f97 SW |
1864 | if (inform_dataplane && !ipa_len) { |
1865 | /* program the local mac in the kernel. when the ES | |
1866 | * change we need to force the dataplane to reset | |
1867 | * the activity as we are yet to establish activity | |
1868 | * locally | |
1869 | */ | |
1870 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1871 | false /* force_clear_static */, | |
1872 | __func__); | |
b2998086 | 1873 | } |
24268cd0 | 1874 | |
b2998086 | 1875 | return mac; |
24268cd0 PR |
1876 | } |
1877 | ||
07b12758 | 1878 | /* update local forwarding info. return true if a dest-ES change |
b2998086 PR |
1879 | * is detected |
1880 | */ | |
3198b2b3 | 1881 | static bool zebra_evpn_local_mac_update_fwd_info(struct zebra_mac *mac, |
d9d3455e PR |
1882 | struct interface *ifp, |
1883 | vlanid_t vid) | |
24268cd0 | 1884 | { |
b2998086 PR |
1885 | struct zebra_if *zif = ifp->info; |
1886 | bool es_change; | |
47c58929 PG |
1887 | ns_id_t local_ns_id = NS_DEFAULT; |
1888 | struct zebra_vrf *zvrf; | |
00a7710c | 1889 | struct zebra_evpn_es *es; |
47c58929 | 1890 | |
096f7609 | 1891 | zvrf = ifp->vrf->info; |
47c58929 PG |
1892 | if (zvrf && zvrf->zns) |
1893 | local_ns_id = zvrf->zns->ns_id; | |
24268cd0 | 1894 | |
8b07f173 | 1895 | zebra_evpn_mac_clear_fwd_info(mac); |
24268cd0 | 1896 | |
00a7710c AK |
1897 | es = zif->es_info.es; |
1898 | if (es && (es->flags & ZEBRA_EVPNES_BYPASS)) | |
1899 | es = NULL; | |
1900 | es_change = zebra_evpn_es_mac_ref_entry(mac, es); | |
24268cd0 | 1901 | |
b2998086 PR |
1902 | if (!mac->es) { |
1903 | /* if es is set fwd_info is not-relevant/taped-out */ | |
1904 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
47c58929 | 1905 | mac->fwd_info.local.ns_id = local_ns_id; |
b2998086 | 1906 | mac->fwd_info.local.vid = vid; |
8b07f173 | 1907 | zebra_evpn_mac_ifp_link(mac, ifp); |
24268cd0 PR |
1908 | } |
1909 | ||
b2998086 | 1910 | return es_change; |
24268cd0 PR |
1911 | } |
1912 | ||
24268cd0 | 1913 | /* Notify Local MACs to the clienti, skips GW MAC */ |
b2998086 PR |
1914 | static void zebra_evpn_send_mac_hash_entry_to_client(struct hash_bucket *bucket, |
1915 | void *arg) | |
24268cd0 PR |
1916 | { |
1917 | struct mac_walk_ctx *wctx = arg; | |
3198b2b3 | 1918 | struct zebra_mac *zmac = bucket->data; |
24268cd0 PR |
1919 | |
1920 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_DEF_GW)) | |
1921 | return; | |
1922 | ||
1923 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) | |
b2998086 PR |
1924 | zebra_evpn_mac_send_add_to_client(wctx->zevpn->vni, |
1925 | &zmac->macaddr, zmac->flags, | |
1926 | zmac->loc_seq, zmac->es); | |
24268cd0 PR |
1927 | } |
1928 | ||
1929 | /* Iterator to Notify Local MACs of a EVPN */ | |
f6371c34 | 1930 | void zebra_evpn_send_mac_list_to_client(struct zebra_evpn *zevpn) |
24268cd0 PR |
1931 | { |
1932 | struct mac_walk_ctx wctx; | |
1933 | ||
1934 | if (!zevpn->mac_table) | |
1935 | return; | |
1936 | ||
6006b807 | 1937 | memset(&wctx, 0, sizeof(wctx)); |
24268cd0 PR |
1938 | wctx.zevpn = zevpn; |
1939 | ||
b2998086 PR |
1940 | hash_iterate(zevpn->mac_table, zebra_evpn_send_mac_hash_entry_to_client, |
1941 | &wctx); | |
24268cd0 PR |
1942 | } |
1943 | ||
3198b2b3 | 1944 | void zebra_evpn_rem_mac_del(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 1945 | { |
b2998086 PR |
1946 | zebra_evpn_process_neigh_on_remote_mac_del(zevpn, mac); |
1947 | /* the remote sequence number in the auto mac entry | |
1948 | * needs to be reset to 0 as the mac entry may have | |
1949 | * been removed on all VTEPs (including | |
1950 | * the originating one) | |
1951 | */ | |
1952 | mac->rem_seq = 0; | |
24268cd0 | 1953 | |
b2998086 PR |
1954 | /* If all remote neighbors referencing a remote MAC |
1955 | * go away, we need to uninstall the MAC. | |
1956 | */ | |
1957 | if (remote_neigh_count(mac) == 0) { | |
f3722826 | 1958 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false /*force*/); |
b2998086 PR |
1959 | zebra_evpn_es_mac_deref_entry(mac); |
1960 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
24268cd0 PR |
1961 | } |
1962 | ||
b2998086 PR |
1963 | if (list_isempty(mac->neigh_list)) |
1964 | zebra_evpn_mac_del(zevpn, mac); | |
1965 | else | |
1966 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
24268cd0 PR |
1967 | } |
1968 | ||
b2998086 PR |
1969 | /* Print Duplicate MAC */ |
1970 | void zebra_evpn_print_dad_mac_hash(struct hash_bucket *bucket, void *ctxt) | |
24268cd0 | 1971 | { |
3198b2b3 | 1972 | struct zebra_mac *mac; |
24268cd0 | 1973 | |
3198b2b3 | 1974 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
1975 | if (!mac) |
1976 | return; | |
24268cd0 | 1977 | |
b2998086 PR |
1978 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
1979 | zebra_evpn_print_mac_hash(bucket, ctxt); | |
24268cd0 PR |
1980 | } |
1981 | ||
b2998086 PR |
1982 | /* Print Duplicate MAC in detail */ |
1983 | void zebra_evpn_print_dad_mac_hash_detail(struct hash_bucket *bucket, | |
1984 | void *ctxt) | |
24268cd0 | 1985 | { |
3198b2b3 | 1986 | struct zebra_mac *mac; |
24268cd0 | 1987 | |
3198b2b3 | 1988 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
1989 | if (!mac) |
1990 | return; | |
24268cd0 | 1991 | |
b2998086 PR |
1992 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
1993 | zebra_evpn_print_mac_hash_detail(bucket, ctxt); | |
24268cd0 | 1994 | } |
19fdd1be | 1995 | |
852d9f97 SW |
1996 | int zebra_evpn_mac_remote_macip_add(struct zebra_evpn *zevpn, |
1997 | struct zebra_vrf *zvrf, | |
1998 | const struct ethaddr *macaddr, | |
1999 | struct in_addr vtep_ip, uint8_t flags, | |
2000 | uint32_t seq, const esi_t *esi) | |
19fdd1be | 2001 | { |
19fdd1be PR |
2002 | bool sticky; |
2003 | bool remote_gw; | |
2004 | int update_mac = 0; | |
2005 | bool do_dad = false; | |
2006 | bool is_dup_detect = false; | |
2007 | esi_t *old_esi; | |
2008 | bool old_static = false; | |
3198b2b3 | 2009 | struct zebra_mac *mac; |
8e1337c5 AK |
2010 | bool old_es_present; |
2011 | bool new_es_present; | |
19fdd1be PR |
2012 | |
2013 | sticky = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
2014 | remote_gw = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
2015 | ||
2016 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2017 | ||
2018 | /* Ignore if the mac is already present as a gateway mac */ | |
2019 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) | |
2020 | && CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW)) { | |
2021 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2022 | zlog_debug( | |
852d9f97 SW |
2023 | "Ignore remote MACIP ADD VNI %u MAC %pEA as MAC is already configured as gateway MAC", |
2024 | zevpn->vni, macaddr); | |
19fdd1be PR |
2025 | return -1; |
2026 | } | |
2027 | ||
2028 | old_esi = (mac && mac->es) ? &mac->es->esi : zero_esi; | |
2029 | ||
2030 | /* check if the remote MAC is unknown or has a change. | |
2031 | * If so, that needs to be updated first. Note that client could | |
2032 | * install MAC and MACIP separately or just install the latter. | |
2033 | */ | |
2034 | if (!mac || !CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2035 | || sticky != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) | |
2036 | || remote_gw != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) | |
2037 | || !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &vtep_ip) | |
2038 | || memcmp(old_esi, esi, sizeof(esi_t)) || seq != mac->rem_seq) | |
2039 | update_mac = 1; | |
2040 | ||
2041 | if (update_mac) { | |
2042 | if (!mac) { | |
2043 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
19fdd1be | 2044 | zebra_evpn_es_mac_ref(mac, esi); |
19fdd1be | 2045 | } else { |
19fdd1be PR |
2046 | /* When host moves but changes its (MAC,IP) |
2047 | * binding, BGP may install a MACIP entry that | |
2048 | * corresponds to "older" location of the host | |
2049 | * in transient situations (because {IP1,M1} | |
2050 | * is a different route from {IP1,M2}). Check | |
2051 | * the sequence number and ignore this update | |
2052 | * if appropriate. | |
2053 | */ | |
852d9f97 SW |
2054 | if (!zebra_evpn_mac_is_bgp_seq_ok(zevpn, mac, seq, |
2055 | false)) | |
19fdd1be | 2056 | return -1; |
c1735c08 | 2057 | |
8e1337c5 | 2058 | old_es_present = !!mac->es; |
c1735c08 | 2059 | zebra_evpn_es_mac_ref(mac, esi); |
8e1337c5 AK |
2060 | new_es_present = !!mac->es; |
2061 | /* XXX - dataplane is curently not able to handle a MAC | |
2062 | * replace if the destination changes from L2-NHG to | |
2063 | * single VTEP and vice-versa. So delete the old entry | |
2064 | * and re-install | |
2065 | */ | |
2066 | if (old_es_present != new_es_present) | |
2067 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false); | |
19fdd1be PR |
2068 | } |
2069 | ||
2070 | /* Check MAC's curent state is local (this is the case | |
2071 | * where MAC has moved from L->R) and check previous | |
2072 | * detection started via local learning. | |
2073 | * RFC-7432: A PE/VTEP that detects a MAC mobility | |
2074 | * event via local learning starts an M-second timer. | |
2075 | * | |
2076 | * VTEP-IP or seq. change alone is not considered | |
2077 | * for dup. detection. | |
2078 | * | |
2079 | * MAC is already marked duplicate set dad, then | |
2080 | * is_dup_detect will be set to not install the entry. | |
2081 | */ | |
2082 | if ((!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2083 | && mac->dad_count) | |
2084 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
2085 | do_dad = true; | |
2086 | ||
2087 | /* Remove local MAC from BGP. */ | |
2088 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
2089 | /* force drop the sync flags */ | |
2090 | old_static = zebra_evpn_mac_is_static(mac); | |
b16e8004 DS |
2091 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2092 | char mac_buf[MAC_BUF_SIZE]; | |
2093 | ||
19fdd1be | 2094 | zlog_debug( |
ef7b8be4 DL |
2095 | "sync-mac->remote vni %u mac %pEA es %s seq %d f %s", |
2096 | zevpn->vni, macaddr, | |
19fdd1be | 2097 | mac->es ? mac->es->esi_str : "-", |
b16e8004 DS |
2098 | mac->loc_seq, |
2099 | zebra_evpn_zebra_mac_flag_dump( | |
2100 | mac, mac_buf, sizeof(mac_buf))); | |
2101 | } | |
2102 | ||
19fdd1be PR |
2103 | zebra_evpn_mac_clear_sync_info(mac); |
2104 | zebra_evpn_mac_send_del_to_client(zevpn->vni, macaddr, | |
2105 | mac->flags, | |
2106 | false /* force */); | |
2107 | } | |
2108 | ||
2109 | /* Set "auto" and "remote" forwarding info. */ | |
8b07f173 | 2110 | zebra_evpn_mac_clear_fwd_info(mac); |
19fdd1be | 2111 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); |
19fdd1be PR |
2112 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); |
2113 | mac->fwd_info.r_vtep_ip = vtep_ip; | |
2114 | ||
2115 | if (sticky) | |
2116 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2117 | else | |
2118 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2119 | ||
2120 | if (remote_gw) | |
2121 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
2122 | else | |
2123 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
2124 | ||
2125 | zebra_evpn_dup_addr_detect_for_mac( | |
2126 | zvrf, mac, mac->fwd_info.r_vtep_ip, do_dad, | |
2127 | &is_dup_detect, false); | |
2128 | ||
2129 | if (!is_dup_detect) { | |
2130 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
2131 | /* Install the entry. */ | |
2132 | zebra_evpn_rem_mac_install(zevpn, mac, old_static); | |
2133 | } | |
2134 | } | |
2135 | ||
2136 | /* Update seq number. */ | |
2137 | mac->rem_seq = seq; | |
2138 | ||
852d9f97 | 2139 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); |
19fdd1be PR |
2140 | return 0; |
2141 | } | |
d9d3455e | 2142 | |
f6371c34 DS |
2143 | int zebra_evpn_add_update_local_mac(struct zebra_vrf *zvrf, |
2144 | struct zebra_evpn *zevpn, | |
d9d3455e | 2145 | struct interface *ifp, |
1a3bd37f | 2146 | const struct ethaddr *macaddr, vlanid_t vid, |
d9d3455e | 2147 | bool sticky, bool local_inactive, |
3198b2b3 | 2148 | bool dp_static, struct zebra_mac *mac) |
d9d3455e | 2149 | { |
d9d3455e PR |
2150 | bool mac_sticky = false; |
2151 | bool inform_client = false; | |
2152 | bool upd_neigh = false; | |
2153 | bool is_dup_detect = false; | |
2154 | struct in_addr vtep_ip = {.s_addr = 0}; | |
2155 | bool es_change = false; | |
2156 | bool new_bgp_ready; | |
2157 | /* assume inactive if not present or if not local */ | |
2158 | bool old_local_inactive = true; | |
2159 | bool old_bgp_ready = false; | |
2160 | bool inform_dataplane = false; | |
2161 | bool new_static = false; | |
2162 | ||
2bdd4461 | 2163 | assert(ifp); |
d9d3455e | 2164 | /* Check if we need to create or update or it is a NO-OP. */ |
00a7710c AK |
2165 | if (!mac) |
2166 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
d9d3455e PR |
2167 | if (!mac) { |
2168 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
2169 | zlog_debug( | |
ef7b8be4 DL |
2170 | "ADD %sMAC %pEA intf %s(%u) VID %u -> VNI %u%s", |
2171 | sticky ? "sticky " : "", macaddr, | |
d9d3455e PR |
2172 | ifp->name, ifp->ifindex, vid, zevpn->vni, |
2173 | local_inactive ? " local-inactive" : ""); | |
2174 | ||
2175 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
d9d3455e PR |
2176 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); |
2177 | es_change = zebra_evpn_local_mac_update_fwd_info(mac, ifp, vid); | |
2178 | if (sticky) | |
2179 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2180 | inform_client = true; | |
2181 | } else { | |
b16e8004 DS |
2182 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2183 | char mac_buf[MAC_BUF_SIZE]; | |
2184 | ||
d9d3455e | 2185 | zlog_debug( |
ef7b8be4 DL |
2186 | "UPD %sMAC %pEA intf %s(%u) VID %u -> VNI %u %scurFlags %s", |
2187 | sticky ? "sticky " : "", macaddr, | |
d9d3455e PR |
2188 | ifp->name, ifp->ifindex, vid, zevpn->vni, |
2189 | local_inactive ? "local-inactive " : "", | |
b16e8004 DS |
2190 | zebra_evpn_zebra_mac_flag_dump( |
2191 | mac, mac_buf, sizeof(mac_buf))); | |
2192 | } | |
d9d3455e PR |
2193 | |
2194 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
2195 | struct interface *old_ifp; | |
2196 | vlanid_t old_vid; | |
2197 | bool old_static; | |
2198 | ||
2199 | zebra_evpn_mac_get_access_info(mac, &old_ifp, &old_vid); | |
2200 | old_bgp_ready = | |
2201 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2202 | old_local_inactive = | |
2203 | !!(mac->flags & ZEBRA_MAC_LOCAL_INACTIVE); | |
2204 | old_static = zebra_evpn_mac_is_static(mac); | |
2205 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) | |
2206 | mac_sticky = true; | |
00a7710c AK |
2207 | es_change = zebra_evpn_local_mac_update_fwd_info( |
2208 | mac, ifp, vid); | |
d9d3455e PR |
2209 | |
2210 | /* | |
2211 | * Update any changes and if changes are relevant to | |
2212 | * BGP, note it. | |
2213 | */ | |
2214 | if (mac_sticky == sticky && old_ifp == ifp | |
2215 | && old_vid == vid | |
2216 | && old_local_inactive == local_inactive | |
00a7710c | 2217 | && dp_static == old_static && !es_change) { |
d9d3455e PR |
2218 | if (IS_ZEBRA_DEBUG_VXLAN) |
2219 | zlog_debug( | |
ef7b8be4 | 2220 | " Add/Update %sMAC %pEA intf %s(%u) VID %u -> VNI %u%s, " |
d9d3455e | 2221 | "entry exists and has not changed ", |
4e9a9863 | 2222 | sticky ? "sticky " : "", |
ef7b8be4 DL |
2223 | macaddr, ifp->name, |
2224 | ifp->ifindex, vid, zevpn->vni, | |
d9d3455e PR |
2225 | local_inactive |
2226 | ? " local_inactive" | |
2227 | : ""); | |
2228 | return 0; | |
2229 | } | |
2230 | if (mac_sticky != sticky) { | |
2231 | if (sticky) | |
2232 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2233 | else | |
2234 | UNSET_FLAG(mac->flags, | |
2235 | ZEBRA_MAC_STICKY); | |
2236 | inform_client = true; | |
2237 | } | |
2238 | ||
d9d3455e PR |
2239 | /* If an es_change is detected we need to advertise |
2240 | * the route with a sequence that is one | |
2241 | * greater. This is need to indicate a mac-move | |
2242 | * to the ES peers | |
2243 | */ | |
2244 | if (es_change) { | |
00a7710c AK |
2245 | /* update the sequence number only if the entry |
2246 | * is locally active | |
2247 | */ | |
2248 | if (!local_inactive) | |
2249 | mac->loc_seq = mac->loc_seq + 1; | |
d9d3455e PR |
2250 | /* force drop the peer/sync info as it is |
2251 | * simply no longer relevant | |
2252 | */ | |
2253 | if (CHECK_FLAG(mac->flags, | |
2254 | ZEBRA_MAC_ALL_PEER_FLAGS)) { | |
2255 | zebra_evpn_mac_clear_sync_info(mac); | |
2256 | new_static = | |
2257 | zebra_evpn_mac_is_static(mac); | |
2258 | /* if we clear peer-flags we | |
2259 | * also need to notify the dataplane | |
2260 | * to drop the static flag | |
2261 | */ | |
2262 | if (old_static != new_static) | |
2263 | inform_dataplane = true; | |
2264 | } | |
2265 | } | |
2266 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2267 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { | |
2268 | bool do_dad = false; | |
2269 | ||
2270 | /* | |
2271 | * MAC has either moved or was "internally" created due | |
2272 | * to a neighbor learn and is now actually learnt. If | |
2273 | * it was learnt as a remote sticky MAC, this is an | |
2274 | * operator error. | |
2275 | */ | |
2276 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) { | |
2277 | flog_warn( | |
2278 | EC_ZEBRA_STICKY_MAC_ALREADY_LEARNT, | |
ef7b8be4 DL |
2279 | "MAC %pEA already learnt as remote sticky MAC behind VTEP %pI4 VNI %u", |
2280 | macaddr, | |
9bcef951 | 2281 | &mac->fwd_info.r_vtep_ip, |
d9d3455e PR |
2282 | zevpn->vni); |
2283 | return 0; | |
2284 | } | |
2285 | ||
2286 | /* If an actual move, compute MAC's seq number */ | |
2287 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
2288 | mac->loc_seq = | |
2289 | MAX(mac->rem_seq + 1, mac->loc_seq); | |
2290 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
2291 | /* Trigger DAD for remote MAC */ | |
2292 | do_dad = true; | |
2293 | } | |
2294 | ||
2295 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
2296 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2297 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
2298 | es_change = zebra_evpn_local_mac_update_fwd_info( | |
2299 | mac, ifp, vid); | |
2300 | if (sticky) | |
2301 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2302 | else | |
2303 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2304 | /* | |
2305 | * We have to inform BGP of this MAC as well as process | |
2306 | * all neighbors. | |
2307 | */ | |
2308 | inform_client = true; | |
2309 | upd_neigh = true; | |
2310 | ||
2311 | zebra_evpn_dup_addr_detect_for_mac( | |
2312 | zvrf, mac, vtep_ip, do_dad, &is_dup_detect, | |
2313 | true); | |
2314 | if (is_dup_detect) { | |
2315 | inform_client = false; | |
2316 | upd_neigh = false; | |
839dfe29 | 2317 | es_change = false; |
d9d3455e PR |
2318 | } |
2319 | } | |
2320 | } | |
2321 | ||
2322 | /* if the dataplane thinks the entry is sync but it is | |
69711b3f AK |
2323 | * not sync in zebra (or vice-versa) we need to re-install |
2324 | * to fixup | |
d9d3455e | 2325 | */ |
69711b3f AK |
2326 | new_static = zebra_evpn_mac_is_static(mac); |
2327 | if (dp_static != new_static) | |
2328 | inform_dataplane = true; | |
d9d3455e PR |
2329 | |
2330 | if (local_inactive) | |
2331 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2332 | else | |
2333 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2334 | ||
2335 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2336 | /* if local-activity has changed we need update bgp | |
2337 | * even if bgp already knows about the mac | |
2338 | */ | |
2339 | if ((old_local_inactive != local_inactive) | |
2340 | || (new_bgp_ready != old_bgp_ready)) { | |
b16e8004 DS |
2341 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2342 | char mac_buf[MAC_BUF_SIZE]; | |
2343 | ||
d9d3455e | 2344 | zlog_debug( |
ef7b8be4 DL |
2345 | "local mac vni %u mac %pEA es %s seq %d f %s%s", |
2346 | zevpn->vni, macaddr, | |
d9d3455e | 2347 | mac->es ? mac->es->esi_str : "", mac->loc_seq, |
b16e8004 DS |
2348 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
2349 | sizeof(mac_buf)), | |
2350 | local_inactive ? "local-inactive" : ""); | |
2351 | } | |
2352 | ||
839dfe29 CS |
2353 | if (!is_dup_detect) |
2354 | inform_client = true; | |
d9d3455e PR |
2355 | } |
2356 | ||
2357 | if (es_change) { | |
2358 | inform_client = true; | |
2359 | upd_neigh = true; | |
2360 | } | |
2361 | ||
2362 | /* Inform dataplane if required. */ | |
2363 | if (inform_dataplane) | |
2364 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
2365 | false /* force_clear_static */, | |
2366 | __func__); | |
2367 | ||
2368 | /* Inform BGP if required. */ | |
2369 | if (inform_client) | |
2370 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2371 | new_bgp_ready); | |
2372 | ||
2373 | /* Process all neighbors associated with this MAC, if required. */ | |
2374 | if (upd_neigh) | |
2375 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
2376 | es_change); | |
2377 | ||
2378 | return 0; | |
2379 | } | |
ad6ca5f4 | 2380 | |
3198b2b3 | 2381 | int zebra_evpn_del_local_mac(struct zebra_evpn *zevpn, struct zebra_mac *mac, |
00a7710c | 2382 | bool clear_static) |
ad6ca5f4 | 2383 | { |
ad6ca5f4 PR |
2384 | bool old_bgp_ready; |
2385 | bool new_bgp_ready; | |
b16e8004 | 2386 | |
46d6f5a2 | 2387 | if (IS_ZEBRA_DEBUG_VXLAN) |
ef7b8be4 DL |
2388 | zlog_debug("DEL MAC %pEA VNI %u seq %u flags 0x%x nbr count %u", |
2389 | &mac->macaddr, zevpn->vni, mac->loc_seq, mac->flags, | |
46d6f5a2 | 2390 | listcount(mac->neigh_list)); |
ad6ca5f4 PR |
2391 | |
2392 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
00a7710c | 2393 | if (!clear_static && zebra_evpn_mac_is_static(mac)) { |
ad6ca5f4 PR |
2394 | /* this is a synced entry and can only be removed when the |
2395 | * es-peers stop advertising it. | |
2396 | */ | |
8b07f173 | 2397 | zebra_evpn_mac_clear_fwd_info(mac); |
ad6ca5f4 | 2398 | |
b16e8004 DS |
2399 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2400 | char mac_buf[MAC_BUF_SIZE]; | |
2401 | ||
ad6ca5f4 | 2402 | zlog_debug( |
ef7b8be4 DL |
2403 | "re-add sync-mac vni %u mac %pEA es %s seq %d f %s", |
2404 | zevpn->vni, &mac->macaddr, | |
ad6ca5f4 | 2405 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
2406 | zebra_evpn_zebra_mac_flag_dump( |
2407 | mac, mac_buf, sizeof(mac_buf))); | |
2408 | } | |
ad6ca5f4 PR |
2409 | |
2410 | /* inform-bgp about change in local-activity if any */ | |
2411 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) { | |
2412 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2413 | new_bgp_ready = | |
2414 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2415 | zebra_evpn_mac_send_add_del_to_client( | |
2416 | mac, old_bgp_ready, new_bgp_ready); | |
2417 | } | |
2418 | ||
1a4f9efd AK |
2419 | /* re-install the inactive entry in the kernel */ |
2420 | zebra_evpn_sync_mac_dp_install(mac, true /* set_inactive */, | |
ad6ca5f4 PR |
2421 | false /* force_clear_static */, |
2422 | __func__); | |
2423 | ||
2424 | return 0; | |
2425 | } | |
2426 | ||
00a7710c AK |
2427 | /* flush the peer info */ |
2428 | zebra_evpn_mac_clear_sync_info(mac); | |
2429 | ||
ad6ca5f4 PR |
2430 | /* Update all the neigh entries associated with this mac */ |
2431 | zebra_evpn_process_neigh_on_local_mac_del(zevpn, mac); | |
2432 | ||
2433 | /* Remove MAC from BGP. */ | |
46d6f5a2 | 2434 | zebra_evpn_mac_send_del_to_client(zevpn->vni, &mac->macaddr, mac->flags, |
ad6ca5f4 PR |
2435 | false /* force */); |
2436 | ||
2437 | zebra_evpn_es_mac_deref_entry(mac); | |
2438 | ||
8b07f173 AK |
2439 | /* remove links to the destination access port */ |
2440 | zebra_evpn_mac_clear_fwd_info(mac); | |
2441 | ||
ad6ca5f4 PR |
2442 | /* |
2443 | * If there are no neigh associated with the mac delete the mac | |
2444 | * else mark it as AUTO for forward reference | |
2445 | */ | |
2446 | if (!listcount(mac->neigh_list)) { | |
2447 | zebra_evpn_mac_del(zevpn, mac); | |
2448 | } else { | |
2449 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); | |
2450 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2451 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2452 | } | |
2453 | ||
2454 | return 0; | |
2455 | } | |
7bce3535 | 2456 | |
5ff58d0a | 2457 | void zebra_evpn_mac_gw_macip_add(struct interface *ifp, |
2458 | struct zebra_evpn *zevpn, | |
2459 | const struct ipaddr *ip, | |
2460 | struct zebra_mac **macp, | |
2461 | const struct ethaddr *macaddr, | |
2462 | vlanid_t vlan_id, bool def_gw) | |
7bce3535 | 2463 | { |
3198b2b3 | 2464 | struct zebra_mac *mac; |
47c58929 PG |
2465 | ns_id_t local_ns_id = NS_DEFAULT; |
2466 | struct zebra_vrf *zvrf; | |
2467 | ||
096f7609 | 2468 | zvrf = ifp->vrf->info; |
47c58929 PG |
2469 | if (zvrf && zvrf->zns) |
2470 | local_ns_id = zvrf->zns->ns_id; | |
7bce3535 | 2471 | |
b83d220a | 2472 | if (!*macp) { |
2473 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2474 | if (!mac) | |
2475 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
2476 | *macp = mac; | |
2477 | } else | |
2478 | mac = *macp; | |
7bce3535 PR |
2479 | |
2480 | /* Set "local" forwarding info. */ | |
8b07f173 | 2481 | zebra_evpn_mac_clear_fwd_info(mac); |
7bce3535 PR |
2482 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); |
2483 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
e4c3ece6 AK |
2484 | if (def_gw) |
2485 | SET_FLAG(mac->flags, ZEBRA_MAC_DEF_GW); | |
5ff58d0a | 2486 | else |
2487 | SET_FLAG(mac->flags, ZEBRA_MAC_SVI); | |
7bce3535 | 2488 | mac->fwd_info.local.ifindex = ifp->ifindex; |
47c58929 | 2489 | mac->fwd_info.local.ns_id = local_ns_id; |
7bce3535 | 2490 | mac->fwd_info.local.vid = vlan_id; |
7bce3535 | 2491 | } |
243b74ed | 2492 | |
f6371c34 | 2493 | void zebra_evpn_mac_svi_del(struct interface *ifp, struct zebra_evpn *zevpn) |
243b74ed | 2494 | { |
3198b2b3 | 2495 | struct zebra_mac *mac; |
243b74ed | 2496 | struct ethaddr macaddr; |
e4c3ece6 | 2497 | bool old_bgp_ready; |
243b74ed AK |
2498 | |
2499 | if (!zebra_evpn_mh_do_adv_svi_mac()) | |
2500 | return; | |
2501 | ||
2502 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2503 | mac = zebra_evpn_mac_lookup(zevpn, &macaddr); | |
2504 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) { | |
2505 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES) | |
2506 | zlog_debug("SVI %s mac free", ifp->name); | |
2507 | ||
e4c3ece6 | 2508 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
243b74ed | 2509 | UNSET_FLAG(mac->flags, ZEBRA_MAC_SVI); |
e4c3ece6 AK |
2510 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, |
2511 | false); | |
243b74ed AK |
2512 | zebra_evpn_deref_ip2mac(mac->zevpn, mac); |
2513 | } | |
2514 | } | |
2515 | ||
f6371c34 | 2516 | void zebra_evpn_mac_svi_add(struct interface *ifp, struct zebra_evpn *zevpn) |
243b74ed | 2517 | { |
3198b2b3 | 2518 | struct zebra_mac *mac = NULL; |
243b74ed AK |
2519 | struct ethaddr macaddr; |
2520 | struct zebra_if *zif = ifp->info; | |
e4c3ece6 AK |
2521 | bool old_bgp_ready; |
2522 | bool new_bgp_ready; | |
243b74ed | 2523 | |
e4c3ece6 AK |
2524 | if (!zebra_evpn_mh_do_adv_svi_mac() |
2525 | || !zebra_evpn_send_to_client_ok(zevpn)) | |
243b74ed AK |
2526 | return; |
2527 | ||
2528 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2529 | ||
2530 | /* dup check */ | |
2531 | mac = zebra_evpn_mac_lookup(zevpn, &macaddr); | |
2532 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) | |
2533 | return; | |
2534 | ||
2535 | /* add/update mac */ | |
2536 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES) | |
2537 | zlog_debug("SVI %s mac add", zif->ifp->name); | |
2538 | ||
e4c3ece6 AK |
2539 | old_bgp_ready = (mac && zebra_evpn_mac_is_ready_for_bgp(mac->flags)) |
2540 | ? true | |
2541 | : false; | |
2542 | ||
e4c3ece6 | 2543 | zebra_evpn_mac_gw_macip_add(ifp, zevpn, NULL, &mac, &macaddr, 0, false); |
e4c3ece6 AK |
2544 | |
2545 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2546 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2547 | new_bgp_ready); | |
243b74ed | 2548 | } |