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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 | ||
e6685141 | 381 | static void zebra_evpn_dad_mac_auto_recovery_exp(struct event *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 | 388 | |
e16d030c | 389 | mac = EVENT_ARG(t); |
b2998086 PR |
390 | |
391 | /* since this is asynchronous we need sanity checks*/ | |
9a7d1e74 | 392 | zvrf = zebra_vrf_lookup_by_id(mac->zevpn->vrf_id); |
b2998086 | 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 */ | |
e16d030c | 578 | EVENT_OFF(mac->dad_mac_auto_recovery_timer); |
24268cd0 | 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 | 590 | |
907a2395 DS |
591 | event_add_timer(zrouter.master, |
592 | zebra_evpn_dad_mac_auto_recovery_exp, | |
593 | mac, zvrf->dad_freeze_time, | |
594 | &mac->dad_mac_auto_recovery_timer); | |
24268cd0 PR |
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]; | |
70d4d90c | 618 | char thread_buf[EVENT_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", | |
5f6eaa9b DS |
695 | event_timer_to_hhmmss(thread_buf, |
696 | sizeof(thread_buf), | |
697 | mac->hold_timer)); | |
b2998086 PR |
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)", |
5f6eaa9b DS |
787 | event_timer_to_hhmmss(thread_buf, |
788 | sizeof(thread_buf), | |
789 | mac->hold_timer)); | |
b2998086 | 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( |
89844a96 | 1041 | "Send MACIP %s f %s state %u 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)), | |
89844a96 | 1045 | state, macaddr, ip, seq, vni, es ? es->esi_str : "-", |
b2998086 | 1046 | zebra_route_string(client->proto)); |
bf902d4c | 1047 | } |
24268cd0 | 1048 | |
b2998086 PR |
1049 | if (cmd == ZEBRA_MACIP_ADD) |
1050 | client->macipadd_cnt++; | |
1051 | else | |
1052 | client->macipdel_cnt++; | |
24268cd0 | 1053 | |
b2998086 PR |
1054 | return zserv_send_message(client, s); |
1055 | } | |
24268cd0 | 1056 | |
b2998086 PR |
1057 | static unsigned int mac_hash_keymake(const void *p) |
1058 | { | |
3198b2b3 | 1059 | const struct zebra_mac *pmac = p; |
b2998086 | 1060 | const void *pnt = (void *)pmac->macaddr.octet; |
24268cd0 | 1061 | |
b2998086 | 1062 | return jhash(pnt, ETH_ALEN, 0xa5a5a55a); |
24268cd0 PR |
1063 | } |
1064 | ||
1065 | /* | |
b2998086 | 1066 | * Compare two MAC addresses. |
24268cd0 | 1067 | */ |
b2998086 | 1068 | static bool mac_cmp(const void *p1, const void *p2) |
24268cd0 | 1069 | { |
3198b2b3 DS |
1070 | const struct zebra_mac *pmac1 = p1; |
1071 | const struct zebra_mac *pmac2 = p2; | |
24268cd0 | 1072 | |
b2998086 PR |
1073 | if (pmac1 == NULL && pmac2 == NULL) |
1074 | return true; | |
24268cd0 | 1075 | |
b2998086 PR |
1076 | if (pmac1 == NULL || pmac2 == NULL) |
1077 | return false; | |
24268cd0 | 1078 | |
b2998086 PR |
1079 | return (memcmp(pmac1->macaddr.octet, pmac2->macaddr.octet, ETH_ALEN) |
1080 | == 0); | |
1081 | } | |
24268cd0 | 1082 | |
b2998086 PR |
1083 | /* |
1084 | * Callback to allocate MAC hash entry. | |
1085 | */ | |
1086 | static void *zebra_evpn_mac_alloc(void *p) | |
1087 | { | |
3198b2b3 DS |
1088 | const struct zebra_mac *tmp_mac = p; |
1089 | struct zebra_mac *mac; | |
24268cd0 | 1090 | |
3198b2b3 | 1091 | mac = XCALLOC(MTYPE_MAC, sizeof(struct zebra_mac)); |
b2998086 | 1092 | *mac = *tmp_mac; |
24268cd0 | 1093 | |
b2998086 PR |
1094 | return ((void *)mac); |
1095 | } | |
24268cd0 | 1096 | |
b2998086 PR |
1097 | /* |
1098 | * Add MAC entry. | |
1099 | */ | |
3198b2b3 DS |
1100 | struct zebra_mac *zebra_evpn_mac_add(struct zebra_evpn *zevpn, |
1101 | const struct ethaddr *macaddr) | |
b2998086 | 1102 | { |
3198b2b3 DS |
1103 | struct zebra_mac tmp_mac; |
1104 | struct zebra_mac *mac = NULL; | |
24268cd0 | 1105 | |
6006b807 | 1106 | memset(&tmp_mac, 0, sizeof(tmp_mac)); |
b2998086 PR |
1107 | memcpy(&tmp_mac.macaddr, macaddr, ETH_ALEN); |
1108 | mac = hash_get(zevpn->mac_table, &tmp_mac, zebra_evpn_mac_alloc); | |
24268cd0 | 1109 | |
b2998086 PR |
1110 | mac->zevpn = zevpn; |
1111 | mac->dad_mac_auto_recovery_timer = NULL; | |
24268cd0 | 1112 | |
b2998086 PR |
1113 | mac->neigh_list = list_new(); |
1114 | mac->neigh_list->cmp = neigh_list_cmp; | |
24268cd0 | 1115 | |
f1dbb1c7 | 1116 | mac->uptime = monotime(NULL); |
b2998086 | 1117 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
b16e8004 | 1118 | char mac_buf[MAC_BUF_SIZE]; |
24268cd0 | 1119 | |
ef7b8be4 DL |
1120 | zlog_debug("%s: MAC %pEA flags %s", __func__, |
1121 | &mac->macaddr, | |
b16e8004 DS |
1122 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1123 | sizeof(mac_buf))); | |
b2998086 PR |
1124 | } |
1125 | return mac; | |
24268cd0 PR |
1126 | } |
1127 | ||
1128 | /* | |
b2998086 | 1129 | * Delete MAC entry. |
24268cd0 | 1130 | */ |
3198b2b3 | 1131 | int zebra_evpn_mac_del(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 1132 | { |
3198b2b3 | 1133 | struct zebra_mac *tmp_mac; |
24268cd0 | 1134 | |
b2998086 | 1135 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
b16e8004 | 1136 | char mac_buf[MAC_BUF_SIZE]; |
b2998086 | 1137 | |
ef7b8be4 DL |
1138 | zlog_debug("%s: MAC %pEA flags %s", __func__, |
1139 | &mac->macaddr, | |
b16e8004 DS |
1140 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1141 | sizeof(mac_buf))); | |
24268cd0 PR |
1142 | } |
1143 | ||
b2998086 PR |
1144 | /* force de-ref any ES entry linked to the MAC */ |
1145 | zebra_evpn_es_mac_deref_entry(mac); | |
24268cd0 | 1146 | |
8b07f173 AK |
1147 | /* remove links to the destination access port */ |
1148 | zebra_evpn_mac_clear_fwd_info(mac); | |
1149 | ||
b2998086 PR |
1150 | /* Cancel proxy hold timer */ |
1151 | zebra_evpn_mac_stop_hold_timer(mac); | |
24268cd0 | 1152 | |
b2998086 | 1153 | /* Cancel auto recovery */ |
e16d030c | 1154 | EVENT_OFF(mac->dad_mac_auto_recovery_timer); |
24268cd0 | 1155 | |
d5fdae8f CS |
1156 | /* If the MAC is freed before the neigh we will end up |
1157 | * with a stale pointer against the neigh. | |
1158 | * The situation can arise when a MAC is in remote state | |
1159 | * and its associated neigh is local state. | |
1160 | * zebra_evpn_cfg_cleanup() cleans up remote neighs and MACs. | |
1161 | * Instead of deleting remote MAC, if its neigh list is non-empty | |
1162 | * (associated to local neighs), mark the MAC as AUTO. | |
1163 | */ | |
1164 | if (!list_isempty(mac->neigh_list)) { | |
1165 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1166 | zlog_debug( | |
1167 | "MAC %pEA (flags 0x%x vni %u) has non-empty neigh list " | |
1168 | "count %u, mark MAC as AUTO", | |
1169 | &mac->macaddr, mac->flags, zevpn->vni, | |
1170 | listcount(mac->neigh_list)); | |
1171 | ||
1172 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
1173 | return 0; | |
1174 | } | |
1175 | ||
b2998086 | 1176 | list_delete(&mac->neigh_list); |
24268cd0 | 1177 | |
b2998086 PR |
1178 | /* Free the VNI hash entry and allocated memory. */ |
1179 | tmp_mac = hash_release(zevpn->mac_table, mac); | |
1180 | XFREE(MTYPE_MAC, tmp_mac); | |
24268cd0 | 1181 | |
b2998086 PR |
1182 | return 0; |
1183 | } | |
24268cd0 | 1184 | |
852d9f97 SW |
1185 | /* |
1186 | * Add Auto MAC entry. | |
1187 | */ | |
1188 | struct zebra_mac *zebra_evpn_mac_add_auto(struct zebra_evpn *zevpn, | |
1189 | const struct ethaddr *macaddr) | |
1190 | { | |
1191 | struct zebra_mac *mac; | |
1192 | ||
1193 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1194 | if (!mac) | |
1195 | return NULL; | |
1196 | ||
1197 | zebra_evpn_mac_clear_fwd_info(mac); | |
1198 | memset(&mac->flags, 0, sizeof(uint32_t)); | |
1199 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
1200 | ||
1201 | return mac; | |
1202 | } | |
1203 | ||
b2998086 | 1204 | static bool zebra_evpn_check_mac_del_from_db(struct mac_walk_ctx *wctx, |
3198b2b3 | 1205 | struct zebra_mac *mac) |
b2998086 PR |
1206 | { |
1207 | if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_LOCAL)) | |
1208 | return true; | |
1209 | else if ((wctx->flags & DEL_REMOTE_MAC) | |
1210 | && (mac->flags & ZEBRA_MAC_REMOTE)) | |
1211 | return true; | |
1212 | else if ((wctx->flags & DEL_REMOTE_MAC_FROM_VTEP) | |
1213 | && (mac->flags & ZEBRA_MAC_REMOTE) | |
1214 | && IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &wctx->r_vtep_ip)) | |
1215 | return true; | |
1216 | else if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_AUTO) | |
1217 | && !listcount(mac->neigh_list)) { | |
1218 | if (IS_ZEBRA_DEBUG_VXLAN) { | |
b16e8004 | 1219 | char mac_buf[MAC_BUF_SIZE]; |
24268cd0 | 1220 | |
24268cd0 | 1221 | zlog_debug( |
ef7b8be4 DL |
1222 | "%s: Del MAC %pEA flags %s", __func__, |
1223 | &mac->macaddr, | |
b16e8004 DS |
1224 | zebra_evpn_zebra_mac_flag_dump( |
1225 | mac, mac_buf, sizeof(mac_buf))); | |
b2998086 PR |
1226 | } |
1227 | wctx->uninstall = 0; | |
24268cd0 | 1228 | |
b2998086 PR |
1229 | return true; |
1230 | } | |
24268cd0 | 1231 | |
b2998086 PR |
1232 | return false; |
1233 | } | |
24268cd0 | 1234 | |
b2998086 PR |
1235 | /* |
1236 | * Free MAC hash entry (callback) | |
1237 | */ | |
1238 | static void zebra_evpn_mac_del_hash_entry(struct hash_bucket *bucket, void *arg) | |
1239 | { | |
1240 | struct mac_walk_ctx *wctx = arg; | |
3198b2b3 | 1241 | struct zebra_mac *mac = bucket->data; |
24268cd0 | 1242 | |
b2998086 PR |
1243 | if (zebra_evpn_check_mac_del_from_db(wctx, mac)) { |
1244 | if (wctx->upd_client && (mac->flags & ZEBRA_MAC_LOCAL)) { | |
1245 | zebra_evpn_mac_send_del_to_client(wctx->zevpn->vni, | |
1246 | &mac->macaddr, | |
1247 | mac->flags, false); | |
1248 | } | |
1249 | if (wctx->uninstall) { | |
1250 | if (zebra_evpn_mac_is_static(mac)) | |
1251 | zebra_evpn_sync_mac_dp_install( | |
1252 | mac, false /* set_inactive */, | |
1253 | true /* force_clear_static */, | |
1254 | __func__); | |
24268cd0 | 1255 | |
b2998086 | 1256 | if (mac->flags & ZEBRA_MAC_REMOTE) |
f3722826 AK |
1257 | zebra_evpn_rem_mac_uninstall(wctx->zevpn, mac, |
1258 | false /*force*/); | |
24268cd0 | 1259 | } |
b2998086 PR |
1260 | |
1261 | zebra_evpn_mac_del(wctx->zevpn, mac); | |
24268cd0 PR |
1262 | } |
1263 | ||
24268cd0 PR |
1264 | return; |
1265 | } | |
1266 | ||
24268cd0 | 1267 | /* |
b2998086 | 1268 | * Delete all MAC entries for this EVPN. |
24268cd0 | 1269 | */ |
f6371c34 DS |
1270 | void zebra_evpn_mac_del_all(struct zebra_evpn *zevpn, int uninstall, |
1271 | int upd_client, uint32_t flags) | |
24268cd0 | 1272 | { |
b2998086 | 1273 | struct mac_walk_ctx wctx; |
24268cd0 | 1274 | |
b2998086 | 1275 | if (!zevpn->mac_table) |
24268cd0 PR |
1276 | return; |
1277 | ||
6006b807 | 1278 | memset(&wctx, 0, sizeof(wctx)); |
b2998086 PR |
1279 | wctx.zevpn = zevpn; |
1280 | wctx.uninstall = uninstall; | |
1281 | wctx.upd_client = upd_client; | |
1282 | wctx.flags = flags; | |
24268cd0 | 1283 | |
b2998086 PR |
1284 | hash_iterate(zevpn->mac_table, zebra_evpn_mac_del_hash_entry, &wctx); |
1285 | } | |
24268cd0 | 1286 | |
b2998086 PR |
1287 | /* |
1288 | * Look up MAC hash entry. | |
1289 | */ | |
3198b2b3 DS |
1290 | struct zebra_mac *zebra_evpn_mac_lookup(struct zebra_evpn *zevpn, |
1291 | const struct ethaddr *mac) | |
b2998086 | 1292 | { |
3198b2b3 DS |
1293 | struct zebra_mac tmp; |
1294 | struct zebra_mac *pmac; | |
24268cd0 | 1295 | |
b2998086 PR |
1296 | memset(&tmp, 0, sizeof(tmp)); |
1297 | memcpy(&tmp.macaddr, mac, ETH_ALEN); | |
1298 | pmac = hash_lookup(zevpn->mac_table, &tmp); | |
24268cd0 | 1299 | |
b2998086 PR |
1300 | return pmac; |
1301 | } | |
24268cd0 | 1302 | |
b2998086 PR |
1303 | /* |
1304 | * Inform BGP about local MAC addition. | |
1305 | */ | |
1a3bd37f | 1306 | int zebra_evpn_mac_send_add_to_client(vni_t vni, const struct ethaddr *macaddr, |
b2998086 PR |
1307 | uint32_t mac_flags, uint32_t seq, |
1308 | struct zebra_evpn_es *es) | |
1309 | { | |
1310 | uint8_t flags = 0; | |
24268cd0 | 1311 | |
b2998086 PR |
1312 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_LOCAL_INACTIVE)) { |
1313 | /* host reachability has not been verified locally */ | |
24268cd0 | 1314 | |
b2998086 PR |
1315 | /* if no ES peer is claiming reachability we can't advertise the |
1316 | * entry | |
1317 | */ | |
1318 | if (!CHECK_FLAG(mac_flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1319 | return 0; | |
24268cd0 | 1320 | |
b2998086 PR |
1321 | /* ES peers are claiming reachability; we will |
1322 | * advertise the entry but with a proxy flag | |
24268cd0 | 1323 | */ |
b2998086 PR |
1324 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT); |
1325 | } | |
24268cd0 | 1326 | |
b2998086 PR |
1327 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_STICKY)) |
1328 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
1329 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_DEF_GW)) | |
1330 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
24268cd0 | 1331 | |
b2998086 PR |
1332 | return zebra_evpn_macip_send_msg_to_client(vni, macaddr, NULL, flags, |
1333 | seq, ZEBRA_NEIGH_ACTIVE, es, | |
1334 | ZEBRA_MACIP_ADD); | |
1335 | } | |
24268cd0 | 1336 | |
b2998086 PR |
1337 | /* |
1338 | * Inform BGP about local MAC deletion. | |
1339 | */ | |
1a3bd37f | 1340 | int zebra_evpn_mac_send_del_to_client(vni_t vni, const struct ethaddr *macaddr, |
b2998086 PR |
1341 | uint32_t flags, bool force) |
1342 | { | |
ad7685de CS |
1343 | int state = ZEBRA_NEIGH_ACTIVE; |
1344 | ||
b2998086 PR |
1345 | if (!force) { |
1346 | if (CHECK_FLAG(flags, ZEBRA_MAC_LOCAL_INACTIVE) | |
1347 | && !CHECK_FLAG(flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1348 | /* the host was not advertised - nothing to delete */ | |
1349 | return 0; | |
ad7685de CS |
1350 | |
1351 | /* MAC is LOCAL and DUP_DETECTED, this local mobility event | |
1352 | * is not known to bgpd. Upon receiving local delete | |
1353 | * ask bgp to reinstall the best route (remote entry). | |
1354 | */ | |
1355 | if (CHECK_FLAG(flags, ZEBRA_MAC_LOCAL) && | |
1356 | CHECK_FLAG(flags, ZEBRA_MAC_DUPLICATE)) | |
1357 | state = ZEBRA_NEIGH_INACTIVE; | |
24268cd0 PR |
1358 | } |
1359 | ||
b2998086 | 1360 | return zebra_evpn_macip_send_msg_to_client( |
ad7685de CS |
1361 | vni, macaddr, NULL, 0 /* flags */, 0 /* seq */, state, NULL, |
1362 | ZEBRA_MACIP_DEL); | |
24268cd0 PR |
1363 | } |
1364 | ||
1365 | /* | |
b2998086 | 1366 | * wrapper to create a MAC hash table |
24268cd0 | 1367 | */ |
b2998086 | 1368 | struct hash *zebra_mac_db_create(const char *desc) |
24268cd0 | 1369 | { |
da55bcbc | 1370 | return hash_create_size(8, mac_hash_keymake, mac_cmp, desc); |
24268cd0 PR |
1371 | } |
1372 | ||
b2998086 | 1373 | /* program sync mac flags in the dataplane */ |
3198b2b3 | 1374 | int zebra_evpn_sync_mac_dp_install(struct zebra_mac *mac, bool set_inactive, |
15400f95 | 1375 | bool force_clear_static, const char *caller) |
24268cd0 | 1376 | { |
b2998086 PR |
1377 | struct interface *ifp; |
1378 | bool sticky; | |
1379 | bool set_static; | |
f6371c34 | 1380 | struct zebra_evpn *zevpn = mac->zevpn; |
b2998086 PR |
1381 | vlanid_t vid; |
1382 | struct zebra_if *zif; | |
1383 | struct interface *br_ifp; | |
24268cd0 | 1384 | |
09de6e45 AK |
1385 | /* If the ES-EVI doesn't exist defer install. When the ES-EVI is |
1386 | * created we will attempt to install the mac entry again | |
1387 | */ | |
1388 | if (mac->es) { | |
1389 | struct zebra_evpn_es_evi *es_evi; | |
1390 | ||
1391 | es_evi = zebra_evpn_es_evi_find(mac->es, mac->zevpn); | |
1392 | if (!es_evi) { | |
1393 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
1394 | zlog_debug( | |
1395 | "%s: dp-install sync-mac vni %u mac %pEA es %s 0x%x %sskipped, no es-evi", | |
1396 | caller, zevpn->vni, &mac->macaddr, | |
1397 | mac->es ? mac->es->esi_str : "-", | |
1398 | mac->flags, | |
1399 | set_inactive ? "inactive " : ""); | |
1400 | return -1; | |
1401 | } | |
1402 | } | |
1403 | ||
b2998086 PR |
1404 | /* get the access vlan from the vxlan_device */ |
1405 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); | |
24268cd0 | 1406 | |
b2998086 | 1407 | if (!ifp) { |
b16e8004 DS |
1408 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1409 | char mac_buf[MAC_BUF_SIZE]; | |
1410 | ||
b2998086 | 1411 | zlog_debug( |
b16e8004 | 1412 | "%s: dp-install sync-mac vni %u mac %pEA es %s %s%sskipped, no access-port", |
15400f95 | 1413 | caller, zevpn->vni, &mac->macaddr, |
b16e8004 DS |
1414 | mac->es ? mac->es->esi_str : "-", |
1415 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1416 | sizeof(mac_buf)), | |
b2998086 | 1417 | set_inactive ? "inactive " : ""); |
b16e8004 | 1418 | } |
15400f95 | 1419 | return -1; |
b2998086 | 1420 | } |
24268cd0 | 1421 | |
b2998086 PR |
1422 | zif = ifp->info; |
1423 | br_ifp = zif->brslave_info.br_if; | |
1424 | if (!br_ifp) { | |
b16e8004 DS |
1425 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1426 | char mac_buf[MAC_BUF_SIZE]; | |
1427 | ||
b2998086 | 1428 | zlog_debug( |
b16e8004 | 1429 | "%s: dp-install sync-mac vni %u mac %pEA es %s %s%sskipped, no br", |
15400f95 | 1430 | caller, zevpn->vni, &mac->macaddr, |
b16e8004 DS |
1431 | mac->es ? mac->es->esi_str : "-", |
1432 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1433 | sizeof(mac_buf)), | |
b2998086 | 1434 | set_inactive ? "inactive " : ""); |
b16e8004 | 1435 | } |
15400f95 | 1436 | return -1; |
b2998086 | 1437 | } |
24268cd0 | 1438 | |
b2998086 PR |
1439 | sticky = !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY); |
1440 | if (force_clear_static) | |
1441 | set_static = false; | |
1442 | else | |
1443 | set_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1444 | |
15400f95 AK |
1445 | /* We can install a local mac that has been synced from the peer |
1446 | * over the VxLAN-overlay/network-port if fast failover is not | |
1447 | * supported and if the local ES is oper-down. | |
1448 | */ | |
1449 | if (mac->es && zebra_evpn_es_local_mac_via_network_port(mac->es)) { | |
b16e8004 DS |
1450 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1451 | char mac_buf[MAC_BUF_SIZE]; | |
1452 | ||
15400f95 | 1453 | zlog_debug( |
b16e8004 | 1454 | "dp-%s sync-nw-mac vni %u mac %pEA es %s %s%s", |
15400f95 AK |
1455 | set_static ? "install" : "uninstall", |
1456 | zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1457 | mac->es ? mac->es->esi_str : "-", |
1458 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1459 | sizeof(mac_buf)), | |
15400f95 | 1460 | set_inactive ? "inactive " : ""); |
b16e8004 | 1461 | } |
15400f95 AK |
1462 | if (set_static) |
1463 | /* XXX - old_static needs to be computed more | |
1464 | * accurately | |
1465 | */ | |
1466 | zebra_evpn_rem_mac_install(zevpn, mac, | |
1467 | true /* old_static */); | |
1468 | else | |
1469 | zebra_evpn_rem_mac_uninstall(zevpn, mac, | |
1470 | false /* force */); | |
1471 | ||
1472 | return 0; | |
1473 | } | |
1474 | ||
b16e8004 DS |
1475 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1476 | char mac_buf[MAC_BUF_SIZE]; | |
1477 | ||
1478 | zlog_debug("dp-install sync-mac vni %u mac %pEA es %s %s%s%s", | |
1479 | zevpn->vni, &mac->macaddr, | |
1480 | mac->es ? mac->es->esi_str : "-", | |
1481 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1482 | sizeof(mac_buf)), | |
1483 | set_static ? "static " : "", | |
1484 | set_inactive ? "inactive " : ""); | |
1485 | } | |
24268cd0 | 1486 | |
b2998086 PR |
1487 | dplane_local_mac_add(ifp, br_ifp, vid, &mac->macaddr, sticky, |
1488 | set_static, set_inactive); | |
15400f95 | 1489 | return 0; |
24268cd0 PR |
1490 | } |
1491 | ||
3198b2b3 DS |
1492 | void zebra_evpn_mac_send_add_del_to_client(struct zebra_mac *mac, |
1493 | bool old_bgp_ready, | |
b2998086 | 1494 | bool new_bgp_ready) |
24268cd0 | 1495 | { |
b2998086 PR |
1496 | if (new_bgp_ready) |
1497 | zebra_evpn_mac_send_add_to_client(mac->zevpn->vni, | |
1498 | &mac->macaddr, mac->flags, | |
1499 | mac->loc_seq, mac->es); | |
1500 | else if (old_bgp_ready) | |
1501 | zebra_evpn_mac_send_del_to_client(mac->zevpn->vni, | |
1502 | &mac->macaddr, mac->flags, | |
1503 | true /* force */); | |
24268cd0 PR |
1504 | } |
1505 | ||
b2998086 PR |
1506 | /* MAC hold timer is used to age out peer-active flag. |
1507 | * | |
1508 | * During this wait time we expect the dataplane component or an | |
1509 | * external neighmgr daemon to probe existing hosts to independently | |
1510 | * establish their presence on the ES. | |
1511 | */ | |
e6685141 | 1512 | static void zebra_evpn_mac_hold_exp_cb(struct event *t) |
24268cd0 | 1513 | { |
3198b2b3 | 1514 | struct zebra_mac *mac; |
b2998086 PR |
1515 | bool old_bgp_ready; |
1516 | bool new_bgp_ready; | |
1517 | bool old_static; | |
1518 | bool new_static; | |
24268cd0 | 1519 | |
e16d030c | 1520 | mac = EVENT_ARG(t); |
b2998086 PR |
1521 | /* the purpose of the hold timer is to age out the peer-active |
1522 | * flag | |
1523 | */ | |
1524 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
cc9f21da | 1525 | return; |
24268cd0 | 1526 | |
b2998086 PR |
1527 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
1528 | old_static = zebra_evpn_mac_is_static(mac); | |
1529 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1530 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1531 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1532 | |
b16e8004 DS |
1533 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1534 | char mac_buf[MAC_BUF_SIZE]; | |
1535 | ||
24268cd0 | 1536 | zlog_debug( |
ef7b8be4 DL |
1537 | "sync-mac vni %u mac %pEA es %s %shold expired", |
1538 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1539 | mac->es ? mac->es->esi_str : "-", |
1540 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1541 | sizeof(mac_buf))); | |
1542 | } | |
24268cd0 | 1543 | |
b2998086 PR |
1544 | /* re-program the local mac in the dataplane if the mac is no |
1545 | * longer static | |
1546 | */ | |
1547 | if (old_static != new_static) | |
1548 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1549 | false /* force_clear_static */, | |
1550 | __func__); | |
24268cd0 | 1551 | |
b2998086 PR |
1552 | /* inform bgp if needed */ |
1553 | if (old_bgp_ready != new_bgp_ready) | |
1554 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1555 | new_bgp_ready); | |
24268cd0 PR |
1556 | } |
1557 | ||
3198b2b3 | 1558 | static inline void zebra_evpn_mac_start_hold_timer(struct zebra_mac *mac) |
24268cd0 | 1559 | { |
b2998086 PR |
1560 | if (mac->hold_timer) |
1561 | return; | |
24268cd0 | 1562 | |
b16e8004 DS |
1563 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1564 | char mac_buf[MAC_BUF_SIZE]; | |
1565 | ||
24268cd0 | 1566 | zlog_debug( |
ef7b8be4 DL |
1567 | "sync-mac vni %u mac %pEA es %s %shold started", |
1568 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1569 | mac->es ? mac->es->esi_str : "-", |
1570 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1571 | sizeof(mac_buf))); | |
1572 | } | |
907a2395 DS |
1573 | event_add_timer(zrouter.master, zebra_evpn_mac_hold_exp_cb, mac, |
1574 | zmh_info->mac_hold_time, &mac->hold_timer); | |
24268cd0 PR |
1575 | } |
1576 | ||
3198b2b3 | 1577 | void zebra_evpn_mac_stop_hold_timer(struct zebra_mac *mac) |
24268cd0 | 1578 | { |
b2998086 PR |
1579 | if (!mac->hold_timer) |
1580 | return; | |
24268cd0 | 1581 | |
b16e8004 DS |
1582 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1583 | char mac_buf[MAC_BUF_SIZE]; | |
1584 | ||
b2998086 | 1585 | zlog_debug( |
ef7b8be4 DL |
1586 | "sync-mac vni %u mac %pEA es %s %shold stopped", |
1587 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1588 | mac->es ? mac->es->esi_str : "-", |
1589 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1590 | sizeof(mac_buf))); | |
1591 | } | |
1592 | ||
e16d030c | 1593 | EVENT_OFF(mac->hold_timer); |
24268cd0 PR |
1594 | } |
1595 | ||
3198b2b3 | 1596 | void zebra_evpn_sync_mac_del(struct zebra_mac *mac) |
24268cd0 | 1597 | { |
b2998086 PR |
1598 | bool old_static; |
1599 | bool new_static; | |
24268cd0 | 1600 | |
b16e8004 DS |
1601 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1602 | char mac_buf[MAC_BUF_SIZE]; | |
1603 | ||
b2998086 | 1604 | zlog_debug( |
ef7b8be4 DL |
1605 | "sync-mac del vni %u mac %pEA es %s seq %d f %s", |
1606 | mac->zevpn->vni, &mac->macaddr, | |
b2998086 | 1607 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
1608 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1609 | sizeof(mac_buf))); | |
1610 | } | |
1611 | ||
b2998086 PR |
1612 | old_static = zebra_evpn_mac_is_static(mac); |
1613 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1614 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1615 | zebra_evpn_mac_start_hold_timer(mac); | |
1616 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1617 | |
b2998086 PR |
1618 | if (old_static != new_static) |
1619 | /* program the local mac in the kernel */ | |
1620 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1621 | false /* force_clear_static */, | |
1622 | __func__); | |
24268cd0 PR |
1623 | } |
1624 | ||
f6371c34 | 1625 | static inline bool zebra_evpn_mac_is_bgp_seq_ok(struct zebra_evpn *zevpn, |
3198b2b3 | 1626 | struct zebra_mac *mac, |
852d9f97 | 1627 | uint32_t seq, bool sync) |
24268cd0 | 1628 | { |
7d99ad7f | 1629 | char mac_buf[MAC_BUF_SIZE]; |
b2998086 | 1630 | uint32_t tmp_seq; |
16de1338 | 1631 | const char *n_type; |
1e1398e3 | 1632 | bool is_local = false; |
24268cd0 | 1633 | |
16de1338 | 1634 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
b2998086 | 1635 | tmp_seq = mac->loc_seq; |
16de1338 | 1636 | n_type = "local"; |
1e1398e3 | 1637 | is_local = true; |
16de1338 | 1638 | } else { |
b2998086 | 1639 | tmp_seq = mac->rem_seq; |
16de1338 AK |
1640 | n_type = "remote"; |
1641 | } | |
24268cd0 | 1642 | |
b2998086 | 1643 | if (seq < tmp_seq) { |
1e1398e3 SW |
1644 | |
1645 | if (is_local && !zebra_evpn_mac_is_ready_for_bgp(mac->flags)) { | |
1646 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || IS_ZEBRA_DEBUG_VXLAN) | |
1647 | zlog_debug( | |
1648 | "%s-macip not ready vni %u %s-mac %pEA lower seq %u f 0x%x", | |
1649 | sync ? "sync" : "rem", zevpn->vni, | |
1650 | n_type, &mac->macaddr, tmp_seq, | |
1651 | mac->flags); | |
1652 | return true; | |
1653 | } | |
1654 | ||
b2998086 PR |
1655 | /* if the mac was never advertised to bgp we must accept |
1656 | * whatever sequence number bgp sends | |
b2998086 | 1657 | */ |
da823882 | 1658 | if (!is_local && zebra_vxlan_get_accept_bgp_seq()) { |
7d99ad7f SW |
1659 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || |
1660 | IS_ZEBRA_DEBUG_VXLAN) { | |
b2998086 | 1661 | zlog_debug( |
852d9f97 | 1662 | "%s-macip accept vni %u %s-mac %pEA lower seq %u f %s", |
16de1338 | 1663 | sync ? "sync" : "rem", zevpn->vni, |
852d9f97 | 1664 | n_type, &mac->macaddr, tmp_seq, |
b16e8004 DS |
1665 | zebra_evpn_zebra_mac_flag_dump( |
1666 | mac, mac_buf, sizeof(mac_buf))); | |
1667 | } | |
1668 | ||
b2998086 PR |
1669 | return true; |
1670 | } | |
24268cd0 | 1671 | |
b16e8004 | 1672 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || IS_ZEBRA_DEBUG_VXLAN) { |
b2998086 | 1673 | zlog_debug( |
852d9f97 | 1674 | "%s-macip ignore vni %u %s-mac %pEA as existing has higher seq %u f %s", |
16de1338 | 1675 | sync ? "sync" : "rem", zevpn->vni, n_type, |
852d9f97 | 1676 | &mac->macaddr, tmp_seq, |
b16e8004 DS |
1677 | zebra_evpn_zebra_mac_flag_dump( |
1678 | mac, mac_buf, sizeof(mac_buf))); | |
1679 | } | |
7d99ad7f | 1680 | |
b2998086 | 1681 | return false; |
24268cd0 PR |
1682 | } |
1683 | ||
b2998086 | 1684 | return true; |
24268cd0 PR |
1685 | } |
1686 | ||
852d9f97 SW |
1687 | struct zebra_mac *zebra_evpn_proc_sync_mac_update(struct zebra_evpn *zevpn, |
1688 | const struct ethaddr *macaddr, | |
1689 | uint16_t ipa_len, | |
1690 | const struct ipaddr *ipaddr, | |
1691 | uint8_t flags, uint32_t seq, | |
1692 | const esi_t *esi) | |
24268cd0 | 1693 | { |
3198b2b3 | 1694 | struct zebra_mac *mac; |
b2998086 PR |
1695 | bool inform_bgp = false; |
1696 | bool inform_dataplane = false; | |
4a1f91a3 | 1697 | bool mac_inactive = false; |
b2998086 PR |
1698 | bool seq_change = false; |
1699 | bool es_change = false; | |
1700 | uint32_t tmp_seq; | |
b2998086 PR |
1701 | char ipbuf[INET6_ADDRSTRLEN]; |
1702 | bool old_local = false; | |
1703 | bool old_bgp_ready; | |
1704 | bool new_bgp_ready; | |
852d9f97 | 1705 | bool created = false; |
24268cd0 | 1706 | |
b2998086 PR |
1707 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); |
1708 | if (!mac) { | |
1709 | /* if it is a new local path we need to inform both | |
1710 | * the control protocol and the data-plane | |
1711 | */ | |
1712 | inform_bgp = true; | |
1713 | inform_dataplane = true; | |
4a1f91a3 | 1714 | mac_inactive = true; |
24268cd0 | 1715 | |
b2998086 PR |
1716 | /* create the MAC and associate it with the dest ES */ |
1717 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1718 | zebra_evpn_es_mac_ref(mac, esi); | |
24268cd0 | 1719 | |
b2998086 PR |
1720 | /* local mac activated by an ES peer */ |
1721 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
1722 | /* if mac-only route setup peer flags */ | |
1723 | if (!ipa_len) { | |
1724 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) | |
1725 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1726 | else | |
1727 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1728 | } | |
1729 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
1730 | old_bgp_ready = false; | |
1731 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
852d9f97 | 1732 | created = true; |
b2998086 PR |
1733 | } else { |
1734 | uint32_t old_flags; | |
1735 | uint32_t new_flags; | |
1736 | bool old_static; | |
1737 | bool new_static; | |
1738 | bool sticky; | |
1739 | bool remote_gw; | |
24268cd0 | 1740 | |
f1dbb1c7 DS |
1741 | mac->uptime = monotime(NULL); |
1742 | ||
b2998086 PR |
1743 | old_flags = mac->flags; |
1744 | sticky = !!CHECK_FLAG(old_flags, ZEBRA_MAC_STICKY); | |
1745 | remote_gw = !!CHECK_FLAG(old_flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
1746 | if (sticky || remote_gw) { | |
1747 | if (IS_ZEBRA_DEBUG_EVPN_MH_NEIGH) | |
1748 | zlog_debug( | |
ef7b8be4 DL |
1749 | "Ignore sync-macip vni %u mac %pEA%s%s%s%s", |
1750 | zevpn->vni, macaddr, | |
b2998086 PR |
1751 | ipa_len ? " IP " : "", |
1752 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1753 | sizeof(ipbuf)) | |
1754 | : "", | |
1755 | sticky ? " sticky" : "", | |
1756 | remote_gw ? " remote_gw" : ""); | |
b2998086 PR |
1757 | return NULL; |
1758 | } | |
852d9f97 | 1759 | if (!zebra_evpn_mac_is_bgp_seq_ok(zevpn, mac, seq, true)) |
b2998086 | 1760 | return NULL; |
24268cd0 | 1761 | |
b2998086 PR |
1762 | old_local = !!CHECK_FLAG(old_flags, ZEBRA_MAC_LOCAL); |
1763 | old_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1764 | |
b2998086 PR |
1765 | /* re-build the mac flags */ |
1766 | new_flags = 0; | |
1767 | SET_FLAG(new_flags, ZEBRA_MAC_LOCAL); | |
1768 | /* retain old local activity flag */ | |
852d9f97 | 1769 | if (old_flags & ZEBRA_MAC_LOCAL) |
b2998086 | 1770 | new_flags |= (old_flags & ZEBRA_MAC_LOCAL_INACTIVE); |
852d9f97 | 1771 | else |
b2998086 | 1772 | new_flags |= ZEBRA_MAC_LOCAL_INACTIVE; |
852d9f97 | 1773 | |
b2998086 PR |
1774 | if (ipa_len) { |
1775 | /* if mac-ip route do NOT update the peer flags | |
1776 | * i.e. retain only flags as is | |
1777 | */ | |
1778 | new_flags |= (old_flags & ZEBRA_MAC_ALL_PEER_FLAGS); | |
1779 | } else { | |
1780 | /* if mac-only route update peer flags */ | |
1781 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) { | |
1782 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1783 | /* if the mac was peer-active previously we | |
1784 | * need to keep the flag and start the | |
1785 | * holdtimer on it. the peer-active flag is | |
1786 | * cleared on holdtimer expiry. | |
1787 | */ | |
1788 | if (CHECK_FLAG(old_flags, | |
1789 | ZEBRA_MAC_ES_PEER_ACTIVE)) { | |
1790 | SET_FLAG(new_flags, | |
1791 | ZEBRA_MAC_ES_PEER_ACTIVE); | |
1792 | zebra_evpn_mac_start_hold_timer(mac); | |
1793 | } | |
1794 | } else { | |
1795 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1796 | /* stop hold timer if a peer has verified | |
1797 | * reachability | |
1798 | */ | |
1799 | zebra_evpn_mac_stop_hold_timer(mac); | |
1800 | } | |
1801 | } | |
1802 | mac->rem_seq = 0; | |
8b07f173 | 1803 | zebra_evpn_mac_clear_fwd_info(mac); |
b2998086 | 1804 | mac->flags = new_flags; |
24268cd0 | 1805 | |
b16e8004 DS |
1806 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC && (old_flags != new_flags)) { |
1807 | char mac_buf[MAC_BUF_SIZE], omac_buf[MAC_BUF_SIZE]; | |
3198b2b3 | 1808 | struct zebra_mac omac; |
b16e8004 DS |
1809 | |
1810 | omac.flags = old_flags; | |
b2998086 | 1811 | zlog_debug( |
ef7b8be4 DL |
1812 | "sync-mac vni %u mac %pEA old_f %snew_f %s", |
1813 | zevpn->vni, macaddr, | |
b16e8004 DS |
1814 | zebra_evpn_zebra_mac_flag_dump( |
1815 | &omac, omac_buf, sizeof(omac_buf)), | |
1816 | zebra_evpn_zebra_mac_flag_dump( | |
1817 | mac, mac_buf, sizeof(mac_buf))); | |
1818 | } | |
24268cd0 | 1819 | |
b2998086 PR |
1820 | /* update es */ |
1821 | es_change = zebra_evpn_es_mac_ref(mac, esi); | |
1822 | /* if mac dest change - inform both sides */ | |
1823 | if (es_change) { | |
1824 | inform_bgp = true; | |
1825 | inform_dataplane = true; | |
4a1f91a3 | 1826 | mac_inactive = true; |
b2998086 | 1827 | } |
8b07f173 | 1828 | |
b2998086 PR |
1829 | /* if peer-flag is being set notify dataplane that the |
1830 | * entry must not be expired because of local inactivity | |
1831 | */ | |
1832 | new_static = zebra_evpn_mac_is_static(mac); | |
1833 | if (old_static != new_static) | |
1834 | inform_dataplane = true; | |
24268cd0 | 1835 | |
b2998086 PR |
1836 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(old_flags); |
1837 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1838 | if (old_bgp_ready != new_bgp_ready) | |
1839 | inform_bgp = true; | |
1840 | } | |
24268cd0 | 1841 | |
24268cd0 | 1842 | |
b2998086 PR |
1843 | /* update sequence number; if that results in a new local sequence |
1844 | * inform bgp | |
1845 | */ | |
1846 | tmp_seq = MAX(mac->loc_seq, seq); | |
1847 | if (tmp_seq != mac->loc_seq) { | |
1848 | mac->loc_seq = tmp_seq; | |
1849 | seq_change = true; | |
1850 | inform_bgp = true; | |
1851 | } | |
24268cd0 | 1852 | |
b16e8004 DS |
1853 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1854 | char mac_buf[MAC_BUF_SIZE]; | |
1855 | ||
ef7b8be4 | 1856 | zlog_debug("sync-mac %s vni %u mac %pEA es %s seq %d f %s%s%s", |
852d9f97 | 1857 | created ? "created" : "updated", zevpn->vni, macaddr, |
b2998086 | 1858 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
1859 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1860 | sizeof(mac_buf)), | |
1861 | inform_bgp ? "inform_bgp" : "", | |
b2998086 | 1862 | inform_dataplane ? " inform_dp" : ""); |
b16e8004 | 1863 | } |
24268cd0 | 1864 | |
b2998086 PR |
1865 | if (inform_bgp) |
1866 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1867 | new_bgp_ready); | |
24268cd0 | 1868 | |
b2998086 PR |
1869 | /* neighs using the mac may need to be re-sent to |
1870 | * bgp with updated info | |
1871 | */ | |
1872 | if (seq_change || es_change || !old_local) | |
1873 | zebra_evpn_process_neigh_on_local_mac_change( | |
1874 | zevpn, mac, seq_change, es_change); | |
24268cd0 | 1875 | |
852d9f97 SW |
1876 | if (inform_dataplane && !ipa_len) { |
1877 | /* program the local mac in the kernel. when the ES | |
1878 | * change we need to force the dataplane to reset | |
1879 | * the activity as we are yet to establish activity | |
1880 | * locally | |
1881 | */ | |
4a1f91a3 CS |
1882 | zebra_evpn_sync_mac_dp_install( |
1883 | mac, mac_inactive /* set_inactive */, | |
1884 | false /* force_clear_static */, __func__); | |
b2998086 | 1885 | } |
24268cd0 | 1886 | |
b2998086 | 1887 | return mac; |
24268cd0 PR |
1888 | } |
1889 | ||
07b12758 | 1890 | /* update local forwarding info. return true if a dest-ES change |
b2998086 PR |
1891 | * is detected |
1892 | */ | |
3198b2b3 | 1893 | static bool zebra_evpn_local_mac_update_fwd_info(struct zebra_mac *mac, |
d9d3455e PR |
1894 | struct interface *ifp, |
1895 | vlanid_t vid) | |
24268cd0 | 1896 | { |
b2998086 PR |
1897 | struct zebra_if *zif = ifp->info; |
1898 | bool es_change; | |
47c58929 PG |
1899 | ns_id_t local_ns_id = NS_DEFAULT; |
1900 | struct zebra_vrf *zvrf; | |
00a7710c | 1901 | struct zebra_evpn_es *es; |
47c58929 | 1902 | |
096f7609 | 1903 | zvrf = ifp->vrf->info; |
47c58929 PG |
1904 | if (zvrf && zvrf->zns) |
1905 | local_ns_id = zvrf->zns->ns_id; | |
24268cd0 | 1906 | |
8b07f173 | 1907 | zebra_evpn_mac_clear_fwd_info(mac); |
24268cd0 | 1908 | |
00a7710c AK |
1909 | es = zif->es_info.es; |
1910 | if (es && (es->flags & ZEBRA_EVPNES_BYPASS)) | |
1911 | es = NULL; | |
1912 | es_change = zebra_evpn_es_mac_ref_entry(mac, es); | |
24268cd0 | 1913 | |
b2998086 PR |
1914 | if (!mac->es) { |
1915 | /* if es is set fwd_info is not-relevant/taped-out */ | |
1916 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
47c58929 | 1917 | mac->fwd_info.local.ns_id = local_ns_id; |
b2998086 | 1918 | mac->fwd_info.local.vid = vid; |
8b07f173 | 1919 | zebra_evpn_mac_ifp_link(mac, ifp); |
24268cd0 PR |
1920 | } |
1921 | ||
b2998086 | 1922 | return es_change; |
24268cd0 PR |
1923 | } |
1924 | ||
24268cd0 | 1925 | /* Notify Local MACs to the clienti, skips GW MAC */ |
b2998086 PR |
1926 | static void zebra_evpn_send_mac_hash_entry_to_client(struct hash_bucket *bucket, |
1927 | void *arg) | |
24268cd0 PR |
1928 | { |
1929 | struct mac_walk_ctx *wctx = arg; | |
3198b2b3 | 1930 | struct zebra_mac *zmac = bucket->data; |
24268cd0 PR |
1931 | |
1932 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_DEF_GW)) | |
1933 | return; | |
1934 | ||
1935 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) | |
b2998086 PR |
1936 | zebra_evpn_mac_send_add_to_client(wctx->zevpn->vni, |
1937 | &zmac->macaddr, zmac->flags, | |
1938 | zmac->loc_seq, zmac->es); | |
24268cd0 PR |
1939 | } |
1940 | ||
1941 | /* Iterator to Notify Local MACs of a EVPN */ | |
f6371c34 | 1942 | void zebra_evpn_send_mac_list_to_client(struct zebra_evpn *zevpn) |
24268cd0 PR |
1943 | { |
1944 | struct mac_walk_ctx wctx; | |
1945 | ||
1946 | if (!zevpn->mac_table) | |
1947 | return; | |
1948 | ||
6006b807 | 1949 | memset(&wctx, 0, sizeof(wctx)); |
24268cd0 PR |
1950 | wctx.zevpn = zevpn; |
1951 | ||
b2998086 PR |
1952 | hash_iterate(zevpn->mac_table, zebra_evpn_send_mac_hash_entry_to_client, |
1953 | &wctx); | |
24268cd0 PR |
1954 | } |
1955 | ||
3198b2b3 | 1956 | void zebra_evpn_rem_mac_del(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 1957 | { |
b2998086 PR |
1958 | zebra_evpn_process_neigh_on_remote_mac_del(zevpn, mac); |
1959 | /* the remote sequence number in the auto mac entry | |
1960 | * needs to be reset to 0 as the mac entry may have | |
1961 | * been removed on all VTEPs (including | |
1962 | * the originating one) | |
1963 | */ | |
1964 | mac->rem_seq = 0; | |
24268cd0 | 1965 | |
b2998086 PR |
1966 | /* If all remote neighbors referencing a remote MAC |
1967 | * go away, we need to uninstall the MAC. | |
1968 | */ | |
1969 | if (remote_neigh_count(mac) == 0) { | |
f3722826 | 1970 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false /*force*/); |
b2998086 PR |
1971 | zebra_evpn_es_mac_deref_entry(mac); |
1972 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
24268cd0 PR |
1973 | } |
1974 | ||
b2998086 PR |
1975 | if (list_isempty(mac->neigh_list)) |
1976 | zebra_evpn_mac_del(zevpn, mac); | |
1977 | else | |
1978 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
24268cd0 PR |
1979 | } |
1980 | ||
b2998086 PR |
1981 | /* Print Duplicate MAC */ |
1982 | void zebra_evpn_print_dad_mac_hash(struct hash_bucket *bucket, void *ctxt) | |
24268cd0 | 1983 | { |
3198b2b3 | 1984 | struct zebra_mac *mac; |
24268cd0 | 1985 | |
3198b2b3 | 1986 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
1987 | if (!mac) |
1988 | return; | |
24268cd0 | 1989 | |
b2998086 PR |
1990 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
1991 | zebra_evpn_print_mac_hash(bucket, ctxt); | |
24268cd0 PR |
1992 | } |
1993 | ||
b2998086 PR |
1994 | /* Print Duplicate MAC in detail */ |
1995 | void zebra_evpn_print_dad_mac_hash_detail(struct hash_bucket *bucket, | |
1996 | void *ctxt) | |
24268cd0 | 1997 | { |
3198b2b3 | 1998 | struct zebra_mac *mac; |
24268cd0 | 1999 | |
3198b2b3 | 2000 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
2001 | if (!mac) |
2002 | return; | |
24268cd0 | 2003 | |
b2998086 PR |
2004 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
2005 | zebra_evpn_print_mac_hash_detail(bucket, ctxt); | |
24268cd0 | 2006 | } |
19fdd1be | 2007 | |
852d9f97 SW |
2008 | int zebra_evpn_mac_remote_macip_add(struct zebra_evpn *zevpn, |
2009 | struct zebra_vrf *zvrf, | |
2010 | const struct ethaddr *macaddr, | |
2011 | struct in_addr vtep_ip, uint8_t flags, | |
2012 | uint32_t seq, const esi_t *esi) | |
19fdd1be | 2013 | { |
19fdd1be PR |
2014 | bool sticky; |
2015 | bool remote_gw; | |
2016 | int update_mac = 0; | |
2017 | bool do_dad = false; | |
2018 | bool is_dup_detect = false; | |
2019 | esi_t *old_esi; | |
2020 | bool old_static = false; | |
3198b2b3 | 2021 | struct zebra_mac *mac; |
8e1337c5 AK |
2022 | bool old_es_present; |
2023 | bool new_es_present; | |
19fdd1be PR |
2024 | |
2025 | sticky = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
2026 | remote_gw = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
2027 | ||
2028 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2029 | ||
2030 | /* Ignore if the mac is already present as a gateway mac */ | |
2031 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) | |
2032 | && CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW)) { | |
2033 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2034 | zlog_debug( | |
852d9f97 SW |
2035 | "Ignore remote MACIP ADD VNI %u MAC %pEA as MAC is already configured as gateway MAC", |
2036 | zevpn->vni, macaddr); | |
19fdd1be PR |
2037 | return -1; |
2038 | } | |
2039 | ||
2040 | old_esi = (mac && mac->es) ? &mac->es->esi : zero_esi; | |
2041 | ||
2042 | /* check if the remote MAC is unknown or has a change. | |
2043 | * If so, that needs to be updated first. Note that client could | |
2044 | * install MAC and MACIP separately or just install the latter. | |
2045 | */ | |
2046 | if (!mac || !CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2047 | || sticky != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) | |
2048 | || remote_gw != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) | |
2049 | || !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &vtep_ip) | |
2050 | || memcmp(old_esi, esi, sizeof(esi_t)) || seq != mac->rem_seq) | |
2051 | update_mac = 1; | |
2052 | ||
2053 | if (update_mac) { | |
2054 | if (!mac) { | |
2055 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
19fdd1be | 2056 | zebra_evpn_es_mac_ref(mac, esi); |
19fdd1be | 2057 | } else { |
19fdd1be PR |
2058 | /* When host moves but changes its (MAC,IP) |
2059 | * binding, BGP may install a MACIP entry that | |
2060 | * corresponds to "older" location of the host | |
2061 | * in transient situations (because {IP1,M1} | |
2062 | * is a different route from {IP1,M2}). Check | |
2063 | * the sequence number and ignore this update | |
2064 | * if appropriate. | |
2065 | */ | |
852d9f97 SW |
2066 | if (!zebra_evpn_mac_is_bgp_seq_ok(zevpn, mac, seq, |
2067 | false)) | |
19fdd1be | 2068 | return -1; |
c1735c08 | 2069 | |
8e1337c5 | 2070 | old_es_present = !!mac->es; |
c1735c08 | 2071 | zebra_evpn_es_mac_ref(mac, esi); |
8e1337c5 AK |
2072 | new_es_present = !!mac->es; |
2073 | /* XXX - dataplane is curently not able to handle a MAC | |
2074 | * replace if the destination changes from L2-NHG to | |
2075 | * single VTEP and vice-versa. So delete the old entry | |
2076 | * and re-install | |
2077 | */ | |
2078 | if (old_es_present != new_es_present) | |
2079 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false); | |
19fdd1be PR |
2080 | } |
2081 | ||
2082 | /* Check MAC's curent state is local (this is the case | |
2083 | * where MAC has moved from L->R) and check previous | |
2084 | * detection started via local learning. | |
2085 | * RFC-7432: A PE/VTEP that detects a MAC mobility | |
2086 | * event via local learning starts an M-second timer. | |
2087 | * | |
2088 | * VTEP-IP or seq. change alone is not considered | |
2089 | * for dup. detection. | |
2090 | * | |
2091 | * MAC is already marked duplicate set dad, then | |
2092 | * is_dup_detect will be set to not install the entry. | |
2093 | */ | |
2094 | if ((!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2095 | && mac->dad_count) | |
2096 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
2097 | do_dad = true; | |
2098 | ||
2099 | /* Remove local MAC from BGP. */ | |
2100 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
2101 | /* force drop the sync flags */ | |
2102 | old_static = zebra_evpn_mac_is_static(mac); | |
b16e8004 DS |
2103 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2104 | char mac_buf[MAC_BUF_SIZE]; | |
2105 | ||
19fdd1be | 2106 | zlog_debug( |
ef7b8be4 DL |
2107 | "sync-mac->remote vni %u mac %pEA es %s seq %d f %s", |
2108 | zevpn->vni, macaddr, | |
19fdd1be | 2109 | mac->es ? mac->es->esi_str : "-", |
b16e8004 DS |
2110 | mac->loc_seq, |
2111 | zebra_evpn_zebra_mac_flag_dump( | |
2112 | mac, mac_buf, sizeof(mac_buf))); | |
2113 | } | |
2114 | ||
19fdd1be PR |
2115 | zebra_evpn_mac_clear_sync_info(mac); |
2116 | zebra_evpn_mac_send_del_to_client(zevpn->vni, macaddr, | |
2117 | mac->flags, | |
2118 | false /* force */); | |
2119 | } | |
2120 | ||
2121 | /* Set "auto" and "remote" forwarding info. */ | |
8b07f173 | 2122 | zebra_evpn_mac_clear_fwd_info(mac); |
19fdd1be | 2123 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); |
19fdd1be PR |
2124 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); |
2125 | mac->fwd_info.r_vtep_ip = vtep_ip; | |
2126 | ||
2127 | if (sticky) | |
2128 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2129 | else | |
2130 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2131 | ||
2132 | if (remote_gw) | |
2133 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
2134 | else | |
2135 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
2136 | ||
2137 | zebra_evpn_dup_addr_detect_for_mac( | |
2138 | zvrf, mac, mac->fwd_info.r_vtep_ip, do_dad, | |
2139 | &is_dup_detect, false); | |
2140 | ||
2141 | if (!is_dup_detect) { | |
2142 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
2143 | /* Install the entry. */ | |
2144 | zebra_evpn_rem_mac_install(zevpn, mac, old_static); | |
2145 | } | |
2146 | } | |
2147 | ||
2148 | /* Update seq number. */ | |
2149 | mac->rem_seq = seq; | |
2150 | ||
852d9f97 | 2151 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); |
19fdd1be PR |
2152 | return 0; |
2153 | } | |
d9d3455e | 2154 | |
f6371c34 DS |
2155 | int zebra_evpn_add_update_local_mac(struct zebra_vrf *zvrf, |
2156 | struct zebra_evpn *zevpn, | |
d9d3455e | 2157 | struct interface *ifp, |
1a3bd37f | 2158 | const struct ethaddr *macaddr, vlanid_t vid, |
d9d3455e | 2159 | bool sticky, bool local_inactive, |
3198b2b3 | 2160 | bool dp_static, struct zebra_mac *mac) |
d9d3455e | 2161 | { |
d9d3455e PR |
2162 | bool mac_sticky = false; |
2163 | bool inform_client = false; | |
2164 | bool upd_neigh = false; | |
2165 | bool is_dup_detect = false; | |
2166 | struct in_addr vtep_ip = {.s_addr = 0}; | |
2167 | bool es_change = false; | |
2168 | bool new_bgp_ready; | |
2169 | /* assume inactive if not present or if not local */ | |
2170 | bool old_local_inactive = true; | |
2171 | bool old_bgp_ready = false; | |
2172 | bool inform_dataplane = false; | |
2173 | bool new_static = false; | |
2174 | ||
2bdd4461 | 2175 | assert(ifp); |
d9d3455e | 2176 | /* Check if we need to create or update or it is a NO-OP. */ |
00a7710c AK |
2177 | if (!mac) |
2178 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
d9d3455e PR |
2179 | if (!mac) { |
2180 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
2181 | zlog_debug( | |
ef7b8be4 DL |
2182 | "ADD %sMAC %pEA intf %s(%u) VID %u -> VNI %u%s", |
2183 | sticky ? "sticky " : "", macaddr, | |
d9d3455e PR |
2184 | ifp->name, ifp->ifindex, vid, zevpn->vni, |
2185 | local_inactive ? " local-inactive" : ""); | |
2186 | ||
2187 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
d9d3455e PR |
2188 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); |
2189 | es_change = zebra_evpn_local_mac_update_fwd_info(mac, ifp, vid); | |
2190 | if (sticky) | |
2191 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2192 | inform_client = true; | |
2193 | } else { | |
b16e8004 DS |
2194 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2195 | char mac_buf[MAC_BUF_SIZE]; | |
2196 | ||
d9d3455e | 2197 | zlog_debug( |
ef7b8be4 DL |
2198 | "UPD %sMAC %pEA intf %s(%u) VID %u -> VNI %u %scurFlags %s", |
2199 | sticky ? "sticky " : "", macaddr, | |
d9d3455e PR |
2200 | ifp->name, ifp->ifindex, vid, zevpn->vni, |
2201 | local_inactive ? "local-inactive " : "", | |
b16e8004 DS |
2202 | zebra_evpn_zebra_mac_flag_dump( |
2203 | mac, mac_buf, sizeof(mac_buf))); | |
2204 | } | |
d9d3455e PR |
2205 | |
2206 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
2207 | struct interface *old_ifp; | |
2208 | vlanid_t old_vid; | |
2209 | bool old_static; | |
2210 | ||
2211 | zebra_evpn_mac_get_access_info(mac, &old_ifp, &old_vid); | |
2212 | old_bgp_ready = | |
2213 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2214 | old_local_inactive = | |
2215 | !!(mac->flags & ZEBRA_MAC_LOCAL_INACTIVE); | |
2216 | old_static = zebra_evpn_mac_is_static(mac); | |
2217 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) | |
2218 | mac_sticky = true; | |
00a7710c AK |
2219 | es_change = zebra_evpn_local_mac_update_fwd_info( |
2220 | mac, ifp, vid); | |
d9d3455e PR |
2221 | |
2222 | /* | |
2223 | * Update any changes and if changes are relevant to | |
2224 | * BGP, note it. | |
2225 | */ | |
2226 | if (mac_sticky == sticky && old_ifp == ifp | |
2227 | && old_vid == vid | |
2228 | && old_local_inactive == local_inactive | |
00a7710c | 2229 | && dp_static == old_static && !es_change) { |
d9d3455e PR |
2230 | if (IS_ZEBRA_DEBUG_VXLAN) |
2231 | zlog_debug( | |
ef7b8be4 | 2232 | " Add/Update %sMAC %pEA intf %s(%u) VID %u -> VNI %u%s, " |
d9d3455e | 2233 | "entry exists and has not changed ", |
4e9a9863 | 2234 | sticky ? "sticky " : "", |
ef7b8be4 DL |
2235 | macaddr, ifp->name, |
2236 | ifp->ifindex, vid, zevpn->vni, | |
d9d3455e PR |
2237 | local_inactive |
2238 | ? " local_inactive" | |
2239 | : ""); | |
2240 | return 0; | |
2241 | } | |
2242 | if (mac_sticky != sticky) { | |
2243 | if (sticky) | |
2244 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2245 | else | |
2246 | UNSET_FLAG(mac->flags, | |
2247 | ZEBRA_MAC_STICKY); | |
2248 | inform_client = true; | |
2249 | } | |
2250 | ||
d9d3455e PR |
2251 | /* If an es_change is detected we need to advertise |
2252 | * the route with a sequence that is one | |
2253 | * greater. This is need to indicate a mac-move | |
2254 | * to the ES peers | |
2255 | */ | |
2256 | if (es_change) { | |
00a7710c AK |
2257 | /* update the sequence number only if the entry |
2258 | * is locally active | |
2259 | */ | |
2260 | if (!local_inactive) | |
2261 | mac->loc_seq = mac->loc_seq + 1; | |
d9d3455e PR |
2262 | /* force drop the peer/sync info as it is |
2263 | * simply no longer relevant | |
2264 | */ | |
2265 | if (CHECK_FLAG(mac->flags, | |
2266 | ZEBRA_MAC_ALL_PEER_FLAGS)) { | |
2267 | zebra_evpn_mac_clear_sync_info(mac); | |
2268 | new_static = | |
2269 | zebra_evpn_mac_is_static(mac); | |
2270 | /* if we clear peer-flags we | |
2271 | * also need to notify the dataplane | |
2272 | * to drop the static flag | |
2273 | */ | |
2274 | if (old_static != new_static) | |
2275 | inform_dataplane = true; | |
2276 | } | |
2277 | } | |
2278 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2279 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { | |
2280 | bool do_dad = false; | |
2281 | ||
2282 | /* | |
2283 | * MAC has either moved or was "internally" created due | |
2284 | * to a neighbor learn and is now actually learnt. If | |
2285 | * it was learnt as a remote sticky MAC, this is an | |
2286 | * operator error. | |
2287 | */ | |
2288 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) { | |
2289 | flog_warn( | |
2290 | EC_ZEBRA_STICKY_MAC_ALREADY_LEARNT, | |
ef7b8be4 DL |
2291 | "MAC %pEA already learnt as remote sticky MAC behind VTEP %pI4 VNI %u", |
2292 | macaddr, | |
9bcef951 | 2293 | &mac->fwd_info.r_vtep_ip, |
d9d3455e PR |
2294 | zevpn->vni); |
2295 | return 0; | |
2296 | } | |
2297 | ||
2298 | /* If an actual move, compute MAC's seq number */ | |
2299 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
2300 | mac->loc_seq = | |
2301 | MAX(mac->rem_seq + 1, mac->loc_seq); | |
2302 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
2303 | /* Trigger DAD for remote MAC */ | |
2304 | do_dad = true; | |
2305 | } | |
2306 | ||
2307 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
2308 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2309 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
2310 | es_change = zebra_evpn_local_mac_update_fwd_info( | |
2311 | mac, ifp, vid); | |
2312 | if (sticky) | |
2313 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2314 | else | |
2315 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2316 | /* | |
2317 | * We have to inform BGP of this MAC as well as process | |
2318 | * all neighbors. | |
2319 | */ | |
2320 | inform_client = true; | |
2321 | upd_neigh = true; | |
2322 | ||
2323 | zebra_evpn_dup_addr_detect_for_mac( | |
2324 | zvrf, mac, vtep_ip, do_dad, &is_dup_detect, | |
2325 | true); | |
2326 | if (is_dup_detect) { | |
2327 | inform_client = false; | |
2328 | upd_neigh = false; | |
839dfe29 | 2329 | es_change = false; |
d9d3455e PR |
2330 | } |
2331 | } | |
2332 | } | |
2333 | ||
2334 | /* if the dataplane thinks the entry is sync but it is | |
69711b3f AK |
2335 | * not sync in zebra (or vice-versa) we need to re-install |
2336 | * to fixup | |
d9d3455e | 2337 | */ |
69711b3f AK |
2338 | new_static = zebra_evpn_mac_is_static(mac); |
2339 | if (dp_static != new_static) | |
2340 | inform_dataplane = true; | |
d9d3455e PR |
2341 | |
2342 | if (local_inactive) | |
2343 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2344 | else | |
2345 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2346 | ||
2347 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2348 | /* if local-activity has changed we need update bgp | |
2349 | * even if bgp already knows about the mac | |
2350 | */ | |
2351 | if ((old_local_inactive != local_inactive) | |
2352 | || (new_bgp_ready != old_bgp_ready)) { | |
b16e8004 DS |
2353 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2354 | char mac_buf[MAC_BUF_SIZE]; | |
2355 | ||
d9d3455e | 2356 | zlog_debug( |
ef7b8be4 DL |
2357 | "local mac vni %u mac %pEA es %s seq %d f %s%s", |
2358 | zevpn->vni, macaddr, | |
d9d3455e | 2359 | mac->es ? mac->es->esi_str : "", mac->loc_seq, |
b16e8004 DS |
2360 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
2361 | sizeof(mac_buf)), | |
2362 | local_inactive ? "local-inactive" : ""); | |
2363 | } | |
2364 | ||
839dfe29 CS |
2365 | if (!is_dup_detect) |
2366 | inform_client = true; | |
d9d3455e PR |
2367 | } |
2368 | ||
2369 | if (es_change) { | |
2370 | inform_client = true; | |
2371 | upd_neigh = true; | |
2372 | } | |
2373 | ||
2374 | /* Inform dataplane if required. */ | |
2375 | if (inform_dataplane) | |
2376 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
2377 | false /* force_clear_static */, | |
2378 | __func__); | |
2379 | ||
2380 | /* Inform BGP if required. */ | |
2381 | if (inform_client) | |
2382 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2383 | new_bgp_ready); | |
2384 | ||
2385 | /* Process all neighbors associated with this MAC, if required. */ | |
2386 | if (upd_neigh) | |
2387 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
2388 | es_change); | |
2389 | ||
2390 | return 0; | |
2391 | } | |
ad6ca5f4 | 2392 | |
3198b2b3 | 2393 | int zebra_evpn_del_local_mac(struct zebra_evpn *zevpn, struct zebra_mac *mac, |
00a7710c | 2394 | bool clear_static) |
ad6ca5f4 | 2395 | { |
ad6ca5f4 PR |
2396 | bool old_bgp_ready; |
2397 | bool new_bgp_ready; | |
b16e8004 | 2398 | |
46d6f5a2 | 2399 | if (IS_ZEBRA_DEBUG_VXLAN) |
ef7b8be4 DL |
2400 | zlog_debug("DEL MAC %pEA VNI %u seq %u flags 0x%x nbr count %u", |
2401 | &mac->macaddr, zevpn->vni, mac->loc_seq, mac->flags, | |
46d6f5a2 | 2402 | listcount(mac->neigh_list)); |
ad6ca5f4 PR |
2403 | |
2404 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
00a7710c | 2405 | if (!clear_static && zebra_evpn_mac_is_static(mac)) { |
ad6ca5f4 PR |
2406 | /* this is a synced entry and can only be removed when the |
2407 | * es-peers stop advertising it. | |
2408 | */ | |
8b07f173 | 2409 | zebra_evpn_mac_clear_fwd_info(mac); |
ad6ca5f4 | 2410 | |
b16e8004 DS |
2411 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2412 | char mac_buf[MAC_BUF_SIZE]; | |
2413 | ||
ad6ca5f4 | 2414 | zlog_debug( |
ef7b8be4 DL |
2415 | "re-add sync-mac vni %u mac %pEA es %s seq %d f %s", |
2416 | zevpn->vni, &mac->macaddr, | |
ad6ca5f4 | 2417 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
2418 | zebra_evpn_zebra_mac_flag_dump( |
2419 | mac, mac_buf, sizeof(mac_buf))); | |
2420 | } | |
ad6ca5f4 PR |
2421 | |
2422 | /* inform-bgp about change in local-activity if any */ | |
2423 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) { | |
2424 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2425 | new_bgp_ready = | |
2426 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2427 | zebra_evpn_mac_send_add_del_to_client( | |
2428 | mac, old_bgp_ready, new_bgp_ready); | |
2429 | } | |
2430 | ||
1a4f9efd AK |
2431 | /* re-install the inactive entry in the kernel */ |
2432 | zebra_evpn_sync_mac_dp_install(mac, true /* set_inactive */, | |
ad6ca5f4 PR |
2433 | false /* force_clear_static */, |
2434 | __func__); | |
2435 | ||
2436 | return 0; | |
2437 | } | |
2438 | ||
00a7710c AK |
2439 | /* flush the peer info */ |
2440 | zebra_evpn_mac_clear_sync_info(mac); | |
2441 | ||
ad6ca5f4 PR |
2442 | /* Update all the neigh entries associated with this mac */ |
2443 | zebra_evpn_process_neigh_on_local_mac_del(zevpn, mac); | |
2444 | ||
2445 | /* Remove MAC from BGP. */ | |
46d6f5a2 | 2446 | zebra_evpn_mac_send_del_to_client(zevpn->vni, &mac->macaddr, mac->flags, |
89844a96 | 2447 | clear_static /* force */); |
ad6ca5f4 PR |
2448 | |
2449 | zebra_evpn_es_mac_deref_entry(mac); | |
2450 | ||
8b07f173 AK |
2451 | /* remove links to the destination access port */ |
2452 | zebra_evpn_mac_clear_fwd_info(mac); | |
2453 | ||
ad6ca5f4 PR |
2454 | /* |
2455 | * If there are no neigh associated with the mac delete the mac | |
2456 | * else mark it as AUTO for forward reference | |
2457 | */ | |
2458 | if (!listcount(mac->neigh_list)) { | |
2459 | zebra_evpn_mac_del(zevpn, mac); | |
2460 | } else { | |
2461 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); | |
2462 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2463 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2464 | } | |
2465 | ||
2466 | return 0; | |
2467 | } | |
7bce3535 | 2468 | |
5ff58d0a | 2469 | void zebra_evpn_mac_gw_macip_add(struct interface *ifp, |
2470 | struct zebra_evpn *zevpn, | |
2471 | const struct ipaddr *ip, | |
2472 | struct zebra_mac **macp, | |
2473 | const struct ethaddr *macaddr, | |
2474 | vlanid_t vlan_id, bool def_gw) | |
7bce3535 | 2475 | { |
3198b2b3 | 2476 | struct zebra_mac *mac; |
47c58929 PG |
2477 | ns_id_t local_ns_id = NS_DEFAULT; |
2478 | struct zebra_vrf *zvrf; | |
2479 | ||
096f7609 | 2480 | zvrf = ifp->vrf->info; |
47c58929 PG |
2481 | if (zvrf && zvrf->zns) |
2482 | local_ns_id = zvrf->zns->ns_id; | |
7bce3535 | 2483 | |
b83d220a | 2484 | if (!*macp) { |
2485 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2486 | if (!mac) | |
2487 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
2488 | *macp = mac; | |
2489 | } else | |
2490 | mac = *macp; | |
7bce3535 PR |
2491 | |
2492 | /* Set "local" forwarding info. */ | |
8b07f173 | 2493 | zebra_evpn_mac_clear_fwd_info(mac); |
7bce3535 PR |
2494 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); |
2495 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
e4c3ece6 AK |
2496 | if (def_gw) |
2497 | SET_FLAG(mac->flags, ZEBRA_MAC_DEF_GW); | |
5ff58d0a | 2498 | else |
2499 | SET_FLAG(mac->flags, ZEBRA_MAC_SVI); | |
7bce3535 | 2500 | mac->fwd_info.local.ifindex = ifp->ifindex; |
47c58929 | 2501 | mac->fwd_info.local.ns_id = local_ns_id; |
7bce3535 | 2502 | mac->fwd_info.local.vid = vlan_id; |
7bce3535 | 2503 | } |
243b74ed | 2504 | |
f6371c34 | 2505 | void zebra_evpn_mac_svi_del(struct interface *ifp, struct zebra_evpn *zevpn) |
243b74ed | 2506 | { |
3198b2b3 | 2507 | struct zebra_mac *mac; |
243b74ed | 2508 | struct ethaddr macaddr; |
e4c3ece6 | 2509 | bool old_bgp_ready; |
243b74ed AK |
2510 | |
2511 | if (!zebra_evpn_mh_do_adv_svi_mac()) | |
2512 | return; | |
2513 | ||
2514 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2515 | mac = zebra_evpn_mac_lookup(zevpn, &macaddr); | |
2516 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) { | |
2517 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES) | |
2518 | zlog_debug("SVI %s mac free", ifp->name); | |
2519 | ||
e4c3ece6 | 2520 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
243b74ed | 2521 | UNSET_FLAG(mac->flags, ZEBRA_MAC_SVI); |
e4c3ece6 AK |
2522 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, |
2523 | false); | |
243b74ed AK |
2524 | zebra_evpn_deref_ip2mac(mac->zevpn, mac); |
2525 | } | |
2526 | } | |
2527 | ||
f6371c34 | 2528 | void zebra_evpn_mac_svi_add(struct interface *ifp, struct zebra_evpn *zevpn) |
243b74ed | 2529 | { |
3198b2b3 | 2530 | struct zebra_mac *mac = NULL; |
243b74ed AK |
2531 | struct ethaddr macaddr; |
2532 | struct zebra_if *zif = ifp->info; | |
e4c3ece6 AK |
2533 | bool old_bgp_ready; |
2534 | bool new_bgp_ready; | |
243b74ed | 2535 | |
e4c3ece6 AK |
2536 | if (!zebra_evpn_mh_do_adv_svi_mac() |
2537 | || !zebra_evpn_send_to_client_ok(zevpn)) | |
243b74ed AK |
2538 | return; |
2539 | ||
2540 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2541 | ||
2542 | /* dup check */ | |
2543 | mac = zebra_evpn_mac_lookup(zevpn, &macaddr); | |
2544 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) | |
2545 | return; | |
2546 | ||
2547 | /* add/update mac */ | |
2548 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES) | |
2549 | zlog_debug("SVI %s mac add", zif->ifp->name); | |
2550 | ||
e4c3ece6 AK |
2551 | old_bgp_ready = (mac && zebra_evpn_mac_is_ready_for_bgp(mac->flags)) |
2552 | ? true | |
2553 | : false; | |
2554 | ||
e4c3ece6 | 2555 | zebra_evpn_mac_gw_macip_add(ifp, zevpn, NULL, &mac, &macaddr, 0, false); |
e4c3ece6 AK |
2556 | |
2557 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2558 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2559 | new_bgp_ready); | |
243b74ed | 2560 | } |