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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" |
b2998086 | 23 | #include "zebra/zebra_evpn.h" |
24268cd0 | 24 | #include "zebra/zebra_evpn_mh.h" |
b2998086 PR |
25 | #include "zebra/zebra_evpn_mac.h" |
26 | #include "zebra/zebra_evpn_neigh.h" | |
24268cd0 | 27 | |
24268cd0 | 28 | DEFINE_MTYPE_STATIC(ZEBRA, MAC, "EVPN MAC"); |
24268cd0 PR |
29 | |
30 | /* | |
31 | * Return number of valid MACs in an EVPN's MAC hash table - all | |
32 | * remote MACs and non-internal (auto) local MACs count. | |
33 | */ | |
f6371c34 | 34 | uint32_t num_valid_macs(struct zebra_evpn *zevpn) |
24268cd0 PR |
35 | { |
36 | unsigned int i; | |
37 | uint32_t num_macs = 0; | |
38 | struct hash *hash; | |
39 | struct hash_bucket *hb; | |
3198b2b3 | 40 | struct zebra_mac *mac; |
24268cd0 PR |
41 | |
42 | hash = zevpn->mac_table; | |
43 | if (!hash) | |
44 | return num_macs; | |
45 | for (i = 0; i < hash->size; i++) { | |
46 | for (hb = hash->index[i]; hb; hb = hb->next) { | |
3198b2b3 | 47 | mac = (struct zebra_mac *)hb->data; |
24268cd0 PR |
48 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) |
49 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) | |
50 | || !CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) | |
51 | num_macs++; | |
52 | } | |
53 | } | |
54 | ||
55 | return num_macs; | |
56 | } | |
57 | ||
f6371c34 | 58 | uint32_t num_dup_detected_macs(struct zebra_evpn *zevpn) |
24268cd0 PR |
59 | { |
60 | unsigned int i; | |
61 | uint32_t num_macs = 0; | |
62 | struct hash *hash; | |
63 | struct hash_bucket *hb; | |
3198b2b3 | 64 | struct zebra_mac *mac; |
24268cd0 PR |
65 | |
66 | hash = zevpn->mac_table; | |
67 | if (!hash) | |
68 | return num_macs; | |
69 | for (i = 0; i < hash->size; i++) { | |
70 | for (hb = hash->index[i]; hb; hb = hb->next) { | |
3198b2b3 | 71 | mac = (struct zebra_mac *)hb->data; |
24268cd0 PR |
72 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
73 | num_macs++; | |
74 | } | |
75 | } | |
76 | ||
77 | return num_macs; | |
78 | } | |
79 | ||
8b07f173 AK |
80 | /* Setup mac_list against the access port. This is done when a mac uses |
81 | * the ifp as destination for the first time | |
82 | */ | |
83 | static void zebra_evpn_mac_ifp_new(struct zebra_if *zif) | |
84 | { | |
85 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
86 | zlog_debug("MAC list created for ifp %s (%u)", zif->ifp->name, | |
87 | zif->ifp->ifindex); | |
88 | ||
89 | zif->mac_list = list_new(); | |
90 | listset_app_node_mem(zif->mac_list); | |
91 | } | |
92 | ||
8b07f173 | 93 | /* Unlink local mac from a destination access port */ |
3198b2b3 | 94 | static void zebra_evpn_mac_ifp_unlink(struct zebra_mac *zmac) |
8b07f173 AK |
95 | { |
96 | struct zebra_if *zif; | |
97 | struct interface *ifp = zmac->ifp; | |
98 | ||
99 | if (!ifp) | |
100 | return; | |
101 | ||
102 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
103 | zlog_debug("VNI %d MAC %pEA unlinked from ifp %s (%u)", | |
104 | zmac->zevpn->vni, | |
105 | &zmac->macaddr, | |
106 | ifp->name, ifp->ifindex); | |
107 | ||
108 | zif = ifp->info; | |
109 | list_delete_node(zif->mac_list, &zmac->ifp_listnode); | |
110 | zmac->ifp = NULL; | |
111 | } | |
112 | ||
51aa2693 AK |
113 | /* Free up the mac_list if any as a part of the interface del/cleanup */ |
114 | void zebra_evpn_mac_ifp_del(struct interface *ifp) | |
115 | { | |
116 | struct zebra_if *zif = ifp->info; | |
117 | struct listnode *node; | |
118 | struct zebra_mac *zmac; | |
119 | ||
120 | if (zif->mac_list) { | |
121 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
122 | zlog_debug("MAC list deleted for ifp %s (%u)", | |
123 | zif->ifp->name, zif->ifp->ifindex); | |
124 | ||
125 | for (ALL_LIST_ELEMENTS_RO(zif->mac_list, node, zmac)) { | |
126 | zebra_evpn_mac_ifp_unlink(zmac); | |
127 | } | |
128 | list_delete(&zif->mac_list); | |
129 | } | |
130 | } | |
131 | ||
8b07f173 AK |
132 | /* Link local mac to destination access port. This is done only if the |
133 | * local mac is associated with a zero ESI i.e. single attach or lacp-bypass | |
134 | * bridge port member | |
135 | */ | |
3198b2b3 DS |
136 | static void zebra_evpn_mac_ifp_link(struct zebra_mac *zmac, |
137 | struct interface *ifp) | |
8b07f173 AK |
138 | { |
139 | struct zebra_if *zif; | |
140 | ||
141 | if (!CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) | |
142 | return; | |
143 | ||
144 | /* already linked to the destination */ | |
145 | if (zmac->ifp == ifp) | |
146 | return; | |
147 | ||
148 | /* unlink the mac from any old destination */ | |
149 | if (zmac->ifp) | |
150 | zebra_evpn_mac_ifp_unlink(zmac); | |
151 | ||
152 | if (!ifp) | |
153 | return; | |
154 | ||
155 | zif = ifp->info; | |
156 | /* the interface mac_list is created on first mac link attempt */ | |
157 | if (!zif->mac_list) | |
158 | zebra_evpn_mac_ifp_new(zif); | |
159 | ||
160 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
161 | zlog_debug("VNI %d MAC %pEA linked to ifp %s (%u)", | |
162 | zmac->zevpn->vni, | |
163 | &zmac->macaddr, | |
164 | ifp->name, ifp->ifindex); | |
165 | ||
166 | zmac->ifp = ifp; | |
167 | listnode_init(&zmac->ifp_listnode, zmac); | |
168 | listnode_add(zif->mac_list, &zmac->ifp_listnode); | |
169 | } | |
170 | ||
171 | /* If the mac is a local mac clear links to destination access port */ | |
3198b2b3 | 172 | void zebra_evpn_mac_clear_fwd_info(struct zebra_mac *zmac) |
8b07f173 AK |
173 | { |
174 | zebra_evpn_mac_ifp_unlink(zmac); | |
175 | memset(&zmac->fwd_info, 0, sizeof(zmac->fwd_info)); | |
176 | } | |
177 | ||
b2998086 PR |
178 | /* |
179 | * Install remote MAC into the forwarding plane. | |
180 | */ | |
3198b2b3 | 181 | int zebra_evpn_rem_mac_install(struct zebra_evpn *zevpn, struct zebra_mac *mac, |
b2998086 | 182 | bool was_static) |
24268cd0 | 183 | { |
b2998086 PR |
184 | const struct zebra_if *zif, *br_zif; |
185 | const struct zebra_l2info_vxlan *vxl; | |
186 | bool sticky; | |
187 | enum zebra_dplane_result res; | |
188 | const struct interface *br_ifp; | |
189 | vlanid_t vid; | |
190 | uint32_t nhg_id; | |
191 | struct in_addr vtep_ip; | |
24268cd0 | 192 | |
b2998086 PR |
193 | zif = zevpn->vxlan_if->info; |
194 | if (!zif) | |
195 | return -1; | |
196 | ||
197 | br_ifp = zif->brslave_info.br_if; | |
198 | if (br_ifp == NULL) | |
199 | return -1; | |
200 | ||
201 | vxl = &zif->l2info.vxl; | |
202 | ||
203 | sticky = !!CHECK_FLAG(mac->flags, | |
204 | (ZEBRA_MAC_STICKY | ZEBRA_MAC_REMOTE_DEF_GW)); | |
205 | ||
206 | /* If nexthop group for the FDB entry is inactive (not programmed in | |
207 | * the dataplane) the MAC entry cannot be installed | |
208 | */ | |
209 | if (mac->es) { | |
210 | if (!(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE)) | |
211 | return -1; | |
212 | nhg_id = mac->es->nhg_id; | |
213 | vtep_ip.s_addr = 0; | |
214 | } else { | |
215 | nhg_id = 0; | |
216 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
24268cd0 PR |
217 | } |
218 | ||
b2998086 PR |
219 | br_zif = (const struct zebra_if *)(br_ifp->info); |
220 | ||
221 | if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif)) | |
222 | vid = vxl->access_vlan; | |
223 | else | |
224 | vid = 0; | |
225 | ||
226 | res = dplane_rem_mac_add(zevpn->vxlan_if, br_ifp, vid, &mac->macaddr, | |
227 | vtep_ip, sticky, nhg_id, was_static); | |
228 | if (res != ZEBRA_DPLANE_REQUEST_FAILURE) | |
229 | return 0; | |
230 | else | |
231 | return -1; | |
24268cd0 PR |
232 | } |
233 | ||
b2998086 PR |
234 | /* |
235 | * Uninstall remote MAC from the forwarding plane. | |
236 | */ | |
3198b2b3 DS |
237 | int zebra_evpn_rem_mac_uninstall(struct zebra_evpn *zevpn, |
238 | struct zebra_mac *mac, bool force) | |
24268cd0 | 239 | { |
b2998086 PR |
240 | const struct zebra_if *zif, *br_zif; |
241 | const struct zebra_l2info_vxlan *vxl; | |
242 | struct in_addr vtep_ip; | |
243 | const struct interface *ifp, *br_ifp; | |
244 | vlanid_t vid; | |
245 | enum zebra_dplane_result res; | |
24268cd0 | 246 | |
f3722826 AK |
247 | /* If the MAC was not installed there is no need to uninstall it */ |
248 | if (!force && mac->es && !(mac->es->flags & ZEBRA_EVPNES_NHG_ACTIVE)) | |
249 | return -1; | |
250 | ||
b2998086 PR |
251 | if (!zevpn->vxlan_if) { |
252 | if (IS_ZEBRA_DEBUG_VXLAN) | |
253 | zlog_debug( | |
254 | "VNI %u hash %p couldn't be uninstalled - no intf", | |
255 | zevpn->vni, zevpn); | |
256 | return -1; | |
257 | } | |
24268cd0 | 258 | |
b2998086 PR |
259 | zif = zevpn->vxlan_if->info; |
260 | if (!zif) | |
261 | return -1; | |
24268cd0 | 262 | |
b2998086 PR |
263 | br_ifp = zif->brslave_info.br_if; |
264 | if (br_ifp == NULL) | |
265 | return -1; | |
24268cd0 | 266 | |
b2998086 | 267 | vxl = &zif->l2info.vxl; |
24268cd0 | 268 | |
b2998086 | 269 | br_zif = (const struct zebra_if *)br_ifp->info; |
24268cd0 | 270 | |
b2998086 PR |
271 | if (IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(br_zif)) |
272 | vid = vxl->access_vlan; | |
273 | else | |
274 | vid = 0; | |
24268cd0 | 275 | |
b2998086 PR |
276 | ifp = zevpn->vxlan_if; |
277 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
278 | ||
279 | res = dplane_rem_mac_del(ifp, br_ifp, vid, &mac->macaddr, vtep_ip); | |
280 | if (res != ZEBRA_DPLANE_REQUEST_FAILURE) | |
281 | return 0; | |
282 | else | |
283 | return -1; | |
24268cd0 PR |
284 | } |
285 | ||
b2998086 PR |
286 | /* |
287 | * Decrement neighbor refcount of MAC; uninstall and free it if | |
288 | * appropriate. | |
24268cd0 | 289 | */ |
3198b2b3 | 290 | void zebra_evpn_deref_ip2mac(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 291 | { |
b2998086 PR |
292 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) |
293 | return; | |
24268cd0 | 294 | |
b2998086 PR |
295 | /* If all remote neighbors referencing a remote MAC go away, |
296 | * we need to uninstall the MAC. | |
24268cd0 | 297 | */ |
b2998086 PR |
298 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) |
299 | && remote_neigh_count(mac) == 0) { | |
f3722826 | 300 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false /*force*/); |
b2998086 PR |
301 | zebra_evpn_es_mac_deref_entry(mac); |
302 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
303 | } | |
304 | ||
243b74ed AK |
305 | /* If no references, delete the MAC. */ |
306 | if (!zebra_evpn_mac_in_use(mac)) | |
b2998086 PR |
307 | zebra_evpn_mac_del(zevpn, mac); |
308 | } | |
309 | ||
3198b2b3 | 310 | static void zebra_evpn_mac_get_access_info(struct zebra_mac *mac, |
e3f05a8a | 311 | struct interface **p_ifp, |
d9d3455e | 312 | vlanid_t *vid) |
b2998086 PR |
313 | { |
314 | /* if the mac is associated with an ES we must get the access | |
315 | * info from the ES | |
24268cd0 | 316 | */ |
b2998086 PR |
317 | if (mac->es) { |
318 | struct zebra_if *zif; | |
319 | ||
320 | /* get the access port from the es */ | |
e3f05a8a | 321 | *p_ifp = mac->es->zif ? mac->es->zif->ifp : NULL; |
b2998086 PR |
322 | /* get the vlan from the EVPN */ |
323 | if (mac->zevpn->vxlan_if) { | |
324 | zif = mac->zevpn->vxlan_if->info; | |
325 | *vid = zif->l2info.vxl.access_vlan; | |
326 | } else { | |
327 | *vid = 0; | |
328 | } | |
329 | } else { | |
330 | struct zebra_ns *zns; | |
331 | ||
332 | *vid = mac->fwd_info.local.vid; | |
47c58929 | 333 | zns = zebra_ns_lookup(mac->fwd_info.local.ns_id); |
e3f05a8a | 334 | *p_ifp = if_lookup_by_index_per_ns(zns, |
335 | mac->fwd_info.local.ifindex); | |
b2998086 PR |
336 | } |
337 | } | |
338 | ||
b16e8004 | 339 | #define MAC_BUF_SIZE 256 |
3198b2b3 | 340 | static char *zebra_evpn_zebra_mac_flag_dump(struct zebra_mac *mac, char *buf, |
b16e8004 DS |
341 | size_t len) |
342 | { | |
343 | if (mac->flags == 0) { | |
344 | snprintfrr(buf, len, "None "); | |
345 | return buf; | |
346 | } | |
347 | ||
348 | snprintfrr( | |
349 | buf, len, "%s%s%s%s%s%s%s%s%s%s%s%s", | |
350 | CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) ? "LOC " : "", | |
351 | CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) ? "REM " : "", | |
352 | CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO) ? "AUTO " : "", | |
353 | CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) ? "STICKY " : "", | |
354 | CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_RMAC) ? "REM Router " | |
355 | : "", | |
356 | CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) ? "Default GW " : "", | |
357 | CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) ? "REM DEF GW " | |
358 | : "", | |
359 | CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE) ? "DUP " : "", | |
360 | CHECK_FLAG(mac->flags, ZEBRA_MAC_FPM_SENT) ? "FPM " : "", | |
0ef63eb5 | 361 | CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE) |
362 | ? "PEER Active " | |
363 | : "", | |
b16e8004 DS |
364 | CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY) ? "PROXY " : "", |
365 | CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE) | |
366 | ? "LOC Inactive " | |
367 | : ""); | |
368 | return buf; | |
369 | } | |
370 | ||
cc9f21da | 371 | static void zebra_evpn_dad_mac_auto_recovery_exp(struct thread *t) |
b2998086 PR |
372 | { |
373 | struct zebra_vrf *zvrf = NULL; | |
3198b2b3 | 374 | struct zebra_mac *mac = NULL; |
f6371c34 | 375 | struct zebra_evpn *zevpn = NULL; |
b2998086 | 376 | struct listnode *node = NULL; |
72de4110 | 377 | struct zebra_neigh *nbr = NULL; |
b2998086 PR |
378 | |
379 | mac = THREAD_ARG(t); | |
380 | ||
381 | /* since this is asynchronous we need sanity checks*/ | |
382 | zvrf = vrf_info_lookup(mac->zevpn->vrf_id); | |
383 | if (!zvrf) | |
cc9f21da | 384 | return; |
b2998086 | 385 | |
8b5fdf2e | 386 | zevpn = zebra_evpn_lookup(mac->zevpn->vni); |
b2998086 | 387 | if (!zevpn) |
cc9f21da | 388 | return; |
b2998086 PR |
389 | |
390 | mac = zebra_evpn_mac_lookup(zevpn, &mac->macaddr); | |
391 | if (!mac) | |
cc9f21da | 392 | return; |
b2998086 | 393 | |
b16e8004 DS |
394 | if (IS_ZEBRA_DEBUG_VXLAN) { |
395 | char mac_buf[MAC_BUF_SIZE]; | |
396 | ||
b2998086 | 397 | zlog_debug( |
ef7b8be4 DL |
398 | "%s: duplicate addr mac %pEA flags %slearn count %u host count %u auto recovery expired", |
399 | __func__, &mac->macaddr, | |
b16e8004 DS |
400 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
401 | sizeof(mac_buf)), | |
402 | mac->dad_count, listcount(mac->neigh_list)); | |
403 | } | |
b2998086 PR |
404 | |
405 | /* Remove all IPs as duplicate associcated with this MAC */ | |
406 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
407 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) { | |
408 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
409 | ZEBRA_NEIGH_SET_INACTIVE(nbr); | |
410 | else if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE)) | |
411 | zebra_evpn_rem_neigh_install( | |
412 | zevpn, nbr, false /*was_static*/); | |
413 | } | |
24268cd0 | 414 | |
24268cd0 PR |
415 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); |
416 | nbr->dad_count = 0; | |
417 | nbr->detect_start_time.tv_sec = 0; | |
b2998086 PR |
418 | nbr->dad_dup_detect_time = 0; |
419 | } | |
420 | ||
421 | UNSET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
422 | mac->dad_count = 0; | |
423 | mac->detect_start_time.tv_sec = 0; | |
424 | mac->detect_start_time.tv_usec = 0; | |
425 | mac->dad_dup_detect_time = 0; | |
426 | mac->dad_mac_auto_recovery_timer = NULL; | |
427 | ||
428 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
429 | /* Inform to BGP */ | |
430 | if (zebra_evpn_mac_send_add_to_client(zevpn->vni, &mac->macaddr, | |
431 | mac->flags, mac->loc_seq, | |
432 | mac->es)) | |
cc9f21da | 433 | return; |
b2998086 PR |
434 | |
435 | /* Process all neighbors associated with this MAC. */ | |
436 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
437 | 0 /*es_change*/); | |
438 | ||
439 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
440 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
441 | ||
442 | /* Install the entry. */ | |
443 | zebra_evpn_rem_mac_install(zevpn, mac, false /* was_static */); | |
24268cd0 | 444 | } |
24268cd0 PR |
445 | } |
446 | ||
d9d3455e | 447 | static void zebra_evpn_dup_addr_detect_for_mac(struct zebra_vrf *zvrf, |
3198b2b3 | 448 | struct zebra_mac *mac, |
d9d3455e PR |
449 | struct in_addr vtep_ip, |
450 | bool do_dad, bool *is_dup_detect, | |
451 | bool is_local) | |
24268cd0 | 452 | { |
72de4110 | 453 | struct zebra_neigh *nbr; |
24268cd0 PR |
454 | struct listnode *node = NULL; |
455 | struct timeval elapsed = {0, 0}; | |
24268cd0 PR |
456 | bool reset_params = false; |
457 | ||
b2ee2b71 | 458 | if (!(zebra_evpn_do_dup_addr_detect(zvrf) && do_dad)) |
24268cd0 PR |
459 | return; |
460 | ||
461 | /* MAC is detected as duplicate, | |
462 | * Local MAC event -> hold on advertising to BGP. | |
463 | * Remote MAC event -> hold on installing it. | |
464 | */ | |
465 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { | |
b16e8004 DS |
466 | if (IS_ZEBRA_DEBUG_VXLAN) { |
467 | char mac_buf[MAC_BUF_SIZE]; | |
468 | ||
24268cd0 | 469 | zlog_debug( |
ef7b8be4 DL |
470 | "%s: duplicate addr MAC %pEA flags %sskip update to client, learn count %u recover time %u", |
471 | __func__, &mac->macaddr, | |
b16e8004 DS |
472 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
473 | sizeof(mac_buf)), | |
474 | mac->dad_count, zvrf->dad_freeze_time); | |
475 | } | |
24268cd0 PR |
476 | /* For duplicate MAC do not update |
477 | * client but update neigh due to | |
478 | * this MAC update. | |
479 | */ | |
480 | if (zvrf->dad_freeze) | |
481 | *is_dup_detect = true; | |
482 | ||
483 | return; | |
484 | } | |
485 | ||
486 | /* Check if detection time (M-secs) expired. | |
487 | * Reset learn count and detection start time. | |
488 | */ | |
489 | monotime_since(&mac->detect_start_time, &elapsed); | |
490 | reset_params = (elapsed.tv_sec > zvrf->dad_time); | |
491 | if (is_local && !reset_params) { | |
492 | /* RFC-7432: A PE/VTEP that detects a MAC mobility | |
493 | * event via LOCAL learning starts an M-second timer. | |
494 | * | |
495 | * NOTE: This is the START of the probe with count is | |
496 | * 0 during LOCAL learn event. | |
497 | * (mac->dad_count == 0 || elapsed.tv_sec >= zvrf->dad_time) | |
498 | */ | |
499 | reset_params = !mac->dad_count; | |
500 | } | |
501 | ||
502 | if (reset_params) { | |
b16e8004 DS |
503 | if (IS_ZEBRA_DEBUG_VXLAN) { |
504 | char mac_buf[MAC_BUF_SIZE]; | |
505 | ||
24268cd0 | 506 | zlog_debug( |
ef7b8be4 DL |
507 | "%s: duplicate addr MAC %pEA flags %sdetection time passed, reset learn count %u", |
508 | __func__, &mac->macaddr, | |
b16e8004 DS |
509 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
510 | sizeof(mac_buf)), | |
511 | mac->dad_count); | |
512 | } | |
24268cd0 PR |
513 | |
514 | mac->dad_count = 0; | |
515 | /* Start dup. addr detection (DAD) start time, | |
516 | * ONLY during LOCAL learn. | |
517 | */ | |
518 | if (is_local) | |
519 | monotime(&mac->detect_start_time); | |
520 | ||
521 | } else if (!is_local) { | |
522 | /* For REMOTE MAC, increment detection count | |
523 | * ONLY while in probe window, once window passed, | |
524 | * next local learn event should trigger DAD. | |
525 | */ | |
526 | mac->dad_count++; | |
527 | } | |
528 | ||
529 | /* For LOCAL MAC learn event, once count is reset above via either | |
530 | * initial/start detection time or passed the probe time, the count | |
531 | * needs to be incremented. | |
532 | */ | |
533 | if (is_local) | |
534 | mac->dad_count++; | |
535 | ||
536 | if (mac->dad_count >= zvrf->dad_max_moves) { | |
537 | flog_warn(EC_ZEBRA_DUP_MAC_DETECTED, | |
ef7b8be4 DL |
538 | "VNI %u: MAC %pEA detected as duplicate during %s VTEP %pI4", |
539 | mac->zevpn->vni, &mac->macaddr, | |
24268cd0 | 540 | is_local ? "local update, last" : |
9bcef951 | 541 | "remote update, from", &vtep_ip); |
24268cd0 PR |
542 | |
543 | SET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
544 | ||
545 | /* Capture Duplicate detection time */ | |
546 | mac->dad_dup_detect_time = monotime(NULL); | |
547 | ||
548 | /* Mark all IPs/Neighs as duplicate | |
549 | * associcated with this MAC | |
550 | */ | |
551 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
552 | ||
553 | /* Ony Mark IPs which are Local */ | |
554 | if (!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
555 | continue; | |
556 | ||
557 | SET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
558 | ||
559 | nbr->dad_dup_detect_time = monotime(NULL); | |
560 | ||
561 | flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED, | |
ef7b8be4 DL |
562 | "VNI %u: MAC %pEA IP %pIA detected as duplicate during %s update, inherit duplicate from MAC", |
563 | mac->zevpn->vni, &mac->macaddr, &nbr->ip, | |
24268cd0 PR |
564 | is_local ? "local" : "remote"); |
565 | } | |
566 | ||
567 | /* Start auto recovery timer for this MAC */ | |
568 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
569 | if (zvrf->dad_freeze && zvrf->dad_freeze_time) { | |
b16e8004 DS |
570 | if (IS_ZEBRA_DEBUG_VXLAN) { |
571 | char mac_buf[MAC_BUF_SIZE]; | |
572 | ||
24268cd0 | 573 | zlog_debug( |
ef7b8be4 DL |
574 | "%s: duplicate addr MAC %pEA flags %sauto recovery time %u start", |
575 | __func__, &mac->macaddr, | |
b16e8004 DS |
576 | zebra_evpn_zebra_mac_flag_dump( |
577 | mac, mac_buf, sizeof(mac_buf)), | |
578 | zvrf->dad_freeze_time); | |
579 | } | |
24268cd0 PR |
580 | |
581 | thread_add_timer(zrouter.master, | |
b2998086 | 582 | zebra_evpn_dad_mac_auto_recovery_exp, |
24268cd0 PR |
583 | mac, zvrf->dad_freeze_time, |
584 | &mac->dad_mac_auto_recovery_timer); | |
585 | } | |
586 | ||
587 | /* In case of local update, do not inform to client (BGPd), | |
588 | * upd_neigh for neigh sequence change. | |
589 | */ | |
590 | if (zvrf->dad_freeze) | |
591 | *is_dup_detect = true; | |
592 | } | |
593 | } | |
594 | ||
b2998086 PR |
595 | /* |
596 | * Print a specific MAC entry. | |
597 | */ | |
3198b2b3 | 598 | void zebra_evpn_print_mac(struct zebra_mac *mac, void *ctxt, json_object *json) |
24268cd0 | 599 | { |
b2998086 | 600 | struct vty *vty; |
72de4110 | 601 | struct zebra_neigh *n = NULL; |
b2998086 PR |
602 | struct listnode *node = NULL; |
603 | char buf1[ETHER_ADDR_STRLEN]; | |
604 | char buf2[INET6_ADDRSTRLEN]; | |
605 | struct zebra_vrf *zvrf; | |
606 | struct timeval detect_start_time = {0, 0}; | |
607 | char timebuf[MONOTIME_STRLEN]; | |
608 | char thread_buf[THREAD_TIMER_STRLEN]; | |
f1dbb1c7 DS |
609 | time_t uptime; |
610 | char up_str[MONOTIME_STRLEN]; | |
24268cd0 | 611 | |
b2998086 | 612 | zvrf = zebra_vrf_get_evpn(); |
b2998086 PR |
613 | vty = (struct vty *)ctxt; |
614 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
24268cd0 | 615 | |
f1dbb1c7 DS |
616 | uptime = monotime(NULL); |
617 | uptime -= mac->uptime; | |
618 | ||
619 | frrtime_to_interval(uptime, up_str, sizeof(up_str)); | |
620 | ||
b2998086 PR |
621 | if (json) { |
622 | json_object *json_mac = json_object_new_object(); | |
24268cd0 | 623 | |
b2998086 PR |
624 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
625 | struct interface *ifp; | |
626 | vlanid_t vid; | |
24268cd0 | 627 | |
b2998086 PR |
628 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
629 | json_object_string_add(json_mac, "type", "local"); | |
630 | if (ifp) { | |
631 | json_object_string_add(json_mac, "intf", | |
632 | ifp->name); | |
633 | json_object_int_add(json_mac, "ifindex", | |
634 | ifp->ifindex); | |
635 | } | |
636 | if (vid) | |
637 | json_object_int_add(json_mac, "vlan", vid); | |
638 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
639 | json_object_string_add(json_mac, "type", "remote"); | |
283ef1b0 PJD |
640 | if (mac->es) |
641 | json_object_string_add(json_mac, "remoteEs", | |
642 | mac->es->esi_str); | |
643 | else | |
644 | json_object_string_addf( | |
645 | json_mac, "remoteVtep", "%pI4", | |
646 | &mac->fwd_info.r_vtep_ip); | |
b2998086 PR |
647 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) |
648 | json_object_string_add(json_mac, "type", "auto"); | |
24268cd0 | 649 | |
b2998086 PR |
650 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) |
651 | json_object_boolean_true_add(json_mac, "stickyMac"); | |
24268cd0 | 652 | |
243b74ed AK |
653 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) |
654 | json_object_boolean_true_add(json_mac, "sviMac"); | |
655 | ||
b2998086 PR |
656 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) |
657 | json_object_boolean_true_add(json_mac, | |
658 | "defaultGateway"); | |
24268cd0 | 659 | |
b2998086 PR |
660 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) |
661 | json_object_boolean_true_add(json_mac, | |
662 | "remoteGatewayMac"); | |
24268cd0 | 663 | |
f1dbb1c7 | 664 | json_object_string_add(json_mac, "uptime", up_str); |
b2998086 PR |
665 | json_object_int_add(json_mac, "localSequence", mac->loc_seq); |
666 | json_object_int_add(json_mac, "remoteSequence", mac->rem_seq); | |
24268cd0 | 667 | |
b2998086 PR |
668 | json_object_int_add(json_mac, "detectionCount", mac->dad_count); |
669 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
670 | json_object_boolean_true_add(json_mac, "isDuplicate"); | |
671 | else | |
672 | json_object_boolean_false_add(json_mac, "isDuplicate"); | |
24268cd0 | 673 | |
b2998086 PR |
674 | json_object_int_add(json_mac, "syncNeighCount", |
675 | mac->sync_neigh_cnt); | |
676 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) | |
677 | json_object_boolean_true_add(json_mac, "localInactive"); | |
678 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY)) | |
679 | json_object_boolean_true_add(json_mac, "peerProxy"); | |
680 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
681 | json_object_boolean_true_add(json_mac, "peerActive"); | |
682 | if (mac->hold_timer) | |
683 | json_object_string_add( | |
684 | json_mac, "peerActiveHold", | |
685 | thread_timer_to_hhmmss(thread_buf, | |
686 | sizeof(thread_buf), | |
687 | mac->hold_timer)); | |
688 | if (mac->es) | |
689 | json_object_string_add(json_mac, "esi", | |
690 | mac->es->esi_str); | |
691 | /* print all the associated neigh */ | |
692 | if (!listcount(mac->neigh_list)) | |
693 | json_object_string_add(json_mac, "neighbors", "none"); | |
694 | else { | |
695 | json_object *json_active_nbrs = json_object_new_array(); | |
696 | json_object *json_inactive_nbrs = | |
697 | json_object_new_array(); | |
698 | json_object *json_nbrs = json_object_new_object(); | |
24268cd0 | 699 | |
b2998086 PR |
700 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { |
701 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) | |
702 | json_object_array_add( | |
703 | json_active_nbrs, | |
704 | json_object_new_string( | |
705 | ipaddr2str( | |
706 | &n->ip, buf2, | |
707 | sizeof(buf2)))); | |
708 | else | |
709 | json_object_array_add( | |
710 | json_inactive_nbrs, | |
711 | json_object_new_string( | |
712 | ipaddr2str( | |
713 | &n->ip, buf2, | |
714 | sizeof(buf2)))); | |
715 | } | |
24268cd0 | 716 | |
b2998086 PR |
717 | json_object_object_add(json_nbrs, "active", |
718 | json_active_nbrs); | |
719 | json_object_object_add(json_nbrs, "inactive", | |
720 | json_inactive_nbrs); | |
721 | json_object_object_add(json_mac, "neighbors", | |
722 | json_nbrs); | |
24268cd0 | 723 | } |
24268cd0 | 724 | |
b2998086 PR |
725 | json_object_object_add(json, buf1, json_mac); |
726 | } else { | |
727 | vty_out(vty, "MAC: %s\n", buf1); | |
24268cd0 | 728 | |
b2998086 PR |
729 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
730 | struct interface *ifp; | |
731 | vlanid_t vid; | |
24268cd0 | 732 | |
b2998086 | 733 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
24268cd0 | 734 | |
b2998086 PR |
735 | if (mac->es) |
736 | vty_out(vty, " ESI: %s\n", mac->es->esi_str); | |
24268cd0 | 737 | |
b2998086 PR |
738 | if (ifp) |
739 | vty_out(vty, " Intf: %s(%u)", ifp->name, | |
740 | ifp->ifindex); | |
741 | else | |
742 | vty_out(vty, " Intf: -"); | |
743 | vty_out(vty, " VLAN: %u", vid); | |
744 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
745 | if (mac->es) | |
746 | vty_out(vty, " Remote ES: %s", | |
747 | mac->es->esi_str); | |
748 | else | |
9bcef951 MS |
749 | vty_out(vty, " Remote VTEP: %pI4", |
750 | &mac->fwd_info.r_vtep_ip); | |
b2998086 PR |
751 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { |
752 | vty_out(vty, " Auto Mac "); | |
753 | } | |
24268cd0 | 754 | |
b2998086 PR |
755 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) |
756 | vty_out(vty, " Sticky Mac "); | |
24268cd0 | 757 | |
243b74ed AK |
758 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) |
759 | vty_out(vty, " SVI-Mac "); | |
760 | ||
b2998086 PR |
761 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) |
762 | vty_out(vty, " Default-gateway Mac "); | |
763 | ||
764 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) | |
765 | vty_out(vty, " Remote-gateway Mac "); | |
766 | ||
767 | vty_out(vty, "\n"); | |
768 | vty_out(vty, " Sync-info: neigh#: %u", mac->sync_neigh_cnt); | |
769 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) | |
24268cd0 | 770 | vty_out(vty, " local-inactive"); |
b2998086 | 771 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY)) |
24268cd0 | 772 | vty_out(vty, " peer-proxy"); |
b2998086 | 773 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) |
24268cd0 | 774 | vty_out(vty, " peer-active"); |
b2998086 | 775 | if (mac->hold_timer) |
24268cd0 | 776 | vty_out(vty, " (ht: %s)", |
b2998086 PR |
777 | thread_timer_to_hhmmss(thread_buf, |
778 | sizeof(thread_buf), | |
779 | mac->hold_timer)); | |
780 | vty_out(vty, "\n"); | |
f1dbb1c7 | 781 | vty_out(vty, " Local Seq: %u Remote Seq: %u\n", mac->loc_seq, |
b2998086 | 782 | mac->rem_seq); |
f1dbb1c7 | 783 | vty_out(vty, " Uptime: %s\n", up_str); |
24268cd0 | 784 | |
b2998086 | 785 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { |
24268cd0 | 786 | vty_out(vty, " Duplicate, detected at %s", |
b2998086 | 787 | time_to_string(mac->dad_dup_detect_time, |
24268cd0 | 788 | timebuf)); |
b2998086 PR |
789 | } else if (mac->dad_count) { |
790 | monotime_since(&mac->detect_start_time, | |
24268cd0 PR |
791 | &detect_start_time); |
792 | if (detect_start_time.tv_sec <= zvrf->dad_time) { | |
b2998086 | 793 | time_to_string(mac->detect_start_time.tv_sec, |
24268cd0 PR |
794 | timebuf); |
795 | vty_out(vty, | |
796 | " Duplicate detection started at %s, detection count %u\n", | |
b2998086 | 797 | timebuf, mac->dad_count); |
24268cd0 PR |
798 | } |
799 | } | |
24268cd0 | 800 | |
b2998086 PR |
801 | /* print all the associated neigh */ |
802 | vty_out(vty, " Neighbors:\n"); | |
803 | if (!listcount(mac->neigh_list)) | |
804 | vty_out(vty, " No Neighbors\n"); | |
805 | else { | |
806 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { | |
807 | vty_out(vty, " %s %s\n", | |
808 | ipaddr2str(&n->ip, buf2, sizeof(buf2)), | |
809 | (IS_ZEBRA_NEIGH_ACTIVE(n) | |
810 | ? "Active" | |
811 | : "Inactive")); | |
812 | } | |
813 | } | |
24268cd0 | 814 | |
b2998086 | 815 | vty_out(vty, "\n"); |
24268cd0 PR |
816 | } |
817 | } | |
818 | ||
3198b2b3 | 819 | static char *zebra_evpn_print_mac_flags(struct zebra_mac *mac, char *flags_buf, |
700cae76 | 820 | size_t flags_buf_sz) |
24268cd0 | 821 | { |
b2998086 | 822 | snprintf(flags_buf, flags_buf_sz, "%s%s%s%s", |
00a7710c AK |
823 | mac->sync_neigh_cnt ? "N" : "", |
824 | (mac->flags & ZEBRA_MAC_ES_PEER_ACTIVE) ? "P" : "", | |
825 | (mac->flags & ZEBRA_MAC_ES_PEER_PROXY) ? "X" : "", | |
826 | (mac->flags & ZEBRA_MAC_LOCAL_INACTIVE) ? "I" : ""); | |
24268cd0 PR |
827 | |
828 | return flags_buf; | |
829 | } | |
830 | ||
831 | /* | |
b2998086 | 832 | * Print MAC hash entry - called for display of all MACs. |
24268cd0 | 833 | */ |
b2998086 | 834 | void zebra_evpn_print_mac_hash(struct hash_bucket *bucket, void *ctxt) |
24268cd0 PR |
835 | { |
836 | struct vty *vty; | |
b2998086 | 837 | json_object *json_mac_hdr = NULL, *json_mac = NULL; |
3198b2b3 | 838 | struct zebra_mac *mac; |
24268cd0 | 839 | char buf1[ETHER_ADDR_STRLEN]; |
9bcef951 | 840 | char addr_buf[PREFIX_STRLEN]; |
b2998086 | 841 | struct mac_walk_ctx *wctx = ctxt; |
24268cd0 PR |
842 | char flags_buf[6]; |
843 | ||
844 | vty = wctx->vty; | |
b2998086 | 845 | json_mac_hdr = wctx->json; |
3198b2b3 | 846 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
847 | |
848 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
849 | ||
850 | if (json_mac_hdr) | |
851 | json_mac = json_object_new_object(); | |
24268cd0 | 852 | |
b2998086 PR |
853 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
854 | struct interface *ifp; | |
855 | vlanid_t vid; | |
24268cd0 | 856 | |
b2998086 | 857 | if (wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) |
24268cd0 PR |
858 | return; |
859 | ||
b2998086 PR |
860 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); |
861 | if (json_mac_hdr == NULL) { | |
862 | vty_out(vty, "%-17s %-6s %-5s %-30s", buf1, "local", | |
863 | zebra_evpn_print_mac_flags(mac, flags_buf, | |
864 | sizeof(flags_buf)), | |
865 | ifp ? ifp->name : "-"); | |
866 | } else { | |
867 | json_object_string_add(json_mac, "type", "local"); | |
868 | if (ifp) | |
869 | json_object_string_add(json_mac, "intf", | |
870 | ifp->name); | |
871 | } | |
872 | if (vid) { | |
873 | if (json_mac_hdr == NULL) | |
874 | vty_out(vty, " %-5u", vid); | |
875 | else | |
876 | json_object_int_add(json_mac, "vlan", vid); | |
877 | } else /* No vid? fill out the space */ | |
878 | if (json_mac_hdr == NULL) | |
879 | vty_out(vty, " %-5s", ""); | |
880 | if (json_mac_hdr == NULL) { | |
881 | vty_out(vty, " %u/%u", mac->loc_seq, mac->rem_seq); | |
882 | vty_out(vty, "\n"); | |
24268cd0 | 883 | } else { |
b2998086 PR |
884 | json_object_int_add(json_mac, "localSequence", |
885 | mac->loc_seq); | |
886 | json_object_int_add(json_mac, "remoteSequence", | |
887 | mac->rem_seq); | |
888 | json_object_int_add(json_mac, "detectionCount", | |
889 | mac->dad_count); | |
890 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
891 | json_object_boolean_true_add(json_mac, | |
24268cd0 PR |
892 | "isDuplicate"); |
893 | else | |
b2998086 | 894 | json_object_boolean_false_add(json_mac, |
24268cd0 | 895 | "isDuplicate"); |
b2998086 | 896 | json_object_object_add(json_mac_hdr, buf1, json_mac); |
24268cd0 | 897 | } |
b2998086 | 898 | |
24268cd0 | 899 | wctx->count++; |
b2998086 PR |
900 | |
901 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
902 | ||
903 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
904 | && !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, | |
905 | &wctx->r_vtep_ip)) | |
24268cd0 PR |
906 | return; |
907 | ||
b2998086 PR |
908 | if (json_mac_hdr == NULL) { |
909 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
910 | && (wctx->count == 0)) { | |
911 | vty_out(vty, "\nVNI %u\n\n", wctx->zevpn->vni); | |
912 | vty_out(vty, "%-17s %-6s %-5s%-30s %-5s %s\n", | |
913 | "MAC", "Type", "Flags", | |
914 | "Intf/Remote ES/VTEP", "VLAN", | |
915 | "Seq #'s"); | |
24268cd0 | 916 | } |
9bcef951 MS |
917 | if (mac->es == NULL) |
918 | inet_ntop(AF_INET, &mac->fwd_info.r_vtep_ip, | |
919 | addr_buf, sizeof(addr_buf)); | |
920 | ||
b2998086 PR |
921 | vty_out(vty, "%-17s %-6s %-5s %-30s %-5s %u/%u\n", buf1, |
922 | "remote", | |
923 | zebra_evpn_print_mac_flags(mac, flags_buf, | |
9bcef951 MS |
924 | sizeof(flags_buf)), |
925 | mac->es ? mac->es->esi_str : addr_buf, | |
b2998086 PR |
926 | "", mac->loc_seq, mac->rem_seq); |
927 | } else { | |
928 | json_object_string_add(json_mac, "type", "remote"); | |
283ef1b0 PJD |
929 | if (mac->es) |
930 | json_object_string_add(json_mac, "remoteEs", | |
931 | mac->es->esi_str); | |
932 | else | |
933 | json_object_string_addf( | |
934 | json_mac, "remoteVtep", "%pI4", | |
935 | &mac->fwd_info.r_vtep_ip); | |
b2998086 PR |
936 | json_object_object_add(json_mac_hdr, buf1, json_mac); |
937 | json_object_int_add(json_mac, "localSequence", | |
938 | mac->loc_seq); | |
939 | json_object_int_add(json_mac, "remoteSequence", | |
940 | mac->rem_seq); | |
941 | json_object_int_add(json_mac, "detectionCount", | |
942 | mac->dad_count); | |
943 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
944 | json_object_boolean_true_add(json_mac, | |
945 | "isDuplicate"); | |
946 | else | |
947 | json_object_boolean_false_add(json_mac, | |
948 | "isDuplicate"); | |
949 | } | |
24268cd0 | 950 | |
b2998086 PR |
951 | wctx->count++; |
952 | } | |
24268cd0 PR |
953 | } |
954 | ||
955 | /* | |
b2998086 | 956 | * Print MAC hash entry in detail - called for display of all MACs. |
24268cd0 | 957 | */ |
b2998086 | 958 | void zebra_evpn_print_mac_hash_detail(struct hash_bucket *bucket, void *ctxt) |
24268cd0 | 959 | { |
b2998086 PR |
960 | struct vty *vty; |
961 | json_object *json_mac_hdr = NULL; | |
3198b2b3 | 962 | struct zebra_mac *mac; |
b2998086 PR |
963 | struct mac_walk_ctx *wctx = ctxt; |
964 | char buf1[ETHER_ADDR_STRLEN]; | |
24268cd0 | 965 | |
b2998086 PR |
966 | vty = wctx->vty; |
967 | json_mac_hdr = wctx->json; | |
3198b2b3 | 968 | mac = (struct zebra_mac *)bucket->data; |
b2998086 | 969 | if (!mac) |
24268cd0 PR |
970 | return; |
971 | ||
b2998086 PR |
972 | wctx->count++; |
973 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
24268cd0 | 974 | |
b2998086 | 975 | zebra_evpn_print_mac(mac, vty, json_mac_hdr); |
24268cd0 PR |
976 | } |
977 | ||
978 | /* | |
b2998086 | 979 | * Inform BGP about local MACIP. |
24268cd0 | 980 | */ |
7f7e49d1 MS |
981 | int zebra_evpn_macip_send_msg_to_client(vni_t vni, |
982 | const struct ethaddr *macaddr, | |
1a3bd37f | 983 | const struct ipaddr *ip, uint8_t flags, |
b2998086 PR |
984 | uint32_t seq, int state, |
985 | struct zebra_evpn_es *es, uint16_t cmd) | |
24268cd0 | 986 | { |
b2998086 PR |
987 | int ipa_len; |
988 | struct zserv *client = NULL; | |
989 | struct stream *s = NULL; | |
990 | esi_t *esi = es ? &es->esi : zero_esi; | |
24268cd0 | 991 | |
b2998086 PR |
992 | client = zserv_find_client(ZEBRA_ROUTE_BGP, 0); |
993 | /* BGP may not be running. */ | |
994 | if (!client) | |
995 | return 0; | |
24268cd0 | 996 | |
b2998086 | 997 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); |
24268cd0 | 998 | |
b2998086 PR |
999 | zclient_create_header(s, cmd, zebra_vrf_get_evpn_id()); |
1000 | stream_putl(s, vni); | |
1001 | stream_put(s, macaddr->octet, ETH_ALEN); | |
1002 | if (ip) { | |
1003 | ipa_len = 0; | |
1004 | if (IS_IPADDR_V4(ip)) | |
1005 | ipa_len = IPV4_MAX_BYTELEN; | |
1006 | else if (IS_IPADDR_V6(ip)) | |
1007 | ipa_len = IPV6_MAX_BYTELEN; | |
24268cd0 | 1008 | |
b2998086 PR |
1009 | stream_putl(s, ipa_len); /* IP address length */ |
1010 | if (ipa_len) | |
1011 | stream_put(s, &ip->ip.addr, ipa_len); /* IP address */ | |
1012 | } else | |
1013 | stream_putl(s, 0); /* Just MAC. */ | |
24268cd0 | 1014 | |
b2998086 PR |
1015 | if (cmd == ZEBRA_MACIP_ADD) { |
1016 | stream_putc(s, flags); /* sticky mac/gateway mac */ | |
1017 | stream_putl(s, seq); /* sequence number */ | |
1018 | stream_put(s, esi, sizeof(esi_t)); | |
24268cd0 | 1019 | } else { |
b2998086 PR |
1020 | stream_putl(s, state); /* state - active/inactive */ |
1021 | } | |
24268cd0 | 1022 | |
24268cd0 | 1023 | |
b2998086 PR |
1024 | /* Write packet size. */ |
1025 | stream_putw_at(s, 0, stream_get_endp(s)); | |
24268cd0 | 1026 | |
bf902d4c DS |
1027 | if (IS_ZEBRA_DEBUG_VXLAN) { |
1028 | char flag_buf[MACIP_BUF_SIZE]; | |
1029 | ||
b2998086 | 1030 | zlog_debug( |
ef7b8be4 | 1031 | "Send MACIP %s f %s MAC %pEA IP %pIA seq %u L2-VNI %u ESI %s to %s", |
bf902d4c DS |
1032 | (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", |
1033 | zclient_evpn_dump_macip_flags(flags, flag_buf, | |
1034 | sizeof(flag_buf)), | |
ef7b8be4 | 1035 | macaddr, ip, seq, vni, |
b2998086 PR |
1036 | es ? es->esi_str : "-", |
1037 | zebra_route_string(client->proto)); | |
bf902d4c | 1038 | } |
24268cd0 | 1039 | |
b2998086 PR |
1040 | if (cmd == ZEBRA_MACIP_ADD) |
1041 | client->macipadd_cnt++; | |
1042 | else | |
1043 | client->macipdel_cnt++; | |
24268cd0 | 1044 | |
b2998086 PR |
1045 | return zserv_send_message(client, s); |
1046 | } | |
24268cd0 | 1047 | |
b2998086 PR |
1048 | static unsigned int mac_hash_keymake(const void *p) |
1049 | { | |
3198b2b3 | 1050 | const struct zebra_mac *pmac = p; |
b2998086 | 1051 | const void *pnt = (void *)pmac->macaddr.octet; |
24268cd0 | 1052 | |
b2998086 | 1053 | return jhash(pnt, ETH_ALEN, 0xa5a5a55a); |
24268cd0 PR |
1054 | } |
1055 | ||
1056 | /* | |
b2998086 | 1057 | * Compare two MAC addresses. |
24268cd0 | 1058 | */ |
b2998086 | 1059 | static bool mac_cmp(const void *p1, const void *p2) |
24268cd0 | 1060 | { |
3198b2b3 DS |
1061 | const struct zebra_mac *pmac1 = p1; |
1062 | const struct zebra_mac *pmac2 = p2; | |
24268cd0 | 1063 | |
b2998086 PR |
1064 | if (pmac1 == NULL && pmac2 == NULL) |
1065 | return true; | |
24268cd0 | 1066 | |
b2998086 PR |
1067 | if (pmac1 == NULL || pmac2 == NULL) |
1068 | return false; | |
24268cd0 | 1069 | |
b2998086 PR |
1070 | return (memcmp(pmac1->macaddr.octet, pmac2->macaddr.octet, ETH_ALEN) |
1071 | == 0); | |
1072 | } | |
24268cd0 | 1073 | |
b2998086 PR |
1074 | /* |
1075 | * Callback to allocate MAC hash entry. | |
1076 | */ | |
1077 | static void *zebra_evpn_mac_alloc(void *p) | |
1078 | { | |
3198b2b3 DS |
1079 | const struct zebra_mac *tmp_mac = p; |
1080 | struct zebra_mac *mac; | |
24268cd0 | 1081 | |
3198b2b3 | 1082 | mac = XCALLOC(MTYPE_MAC, sizeof(struct zebra_mac)); |
b2998086 | 1083 | *mac = *tmp_mac; |
24268cd0 | 1084 | |
b2998086 PR |
1085 | return ((void *)mac); |
1086 | } | |
24268cd0 | 1087 | |
b2998086 PR |
1088 | /* |
1089 | * Add MAC entry. | |
1090 | */ | |
3198b2b3 DS |
1091 | struct zebra_mac *zebra_evpn_mac_add(struct zebra_evpn *zevpn, |
1092 | const struct ethaddr *macaddr) | |
b2998086 | 1093 | { |
3198b2b3 DS |
1094 | struct zebra_mac tmp_mac; |
1095 | struct zebra_mac *mac = NULL; | |
24268cd0 | 1096 | |
6006b807 | 1097 | memset(&tmp_mac, 0, sizeof(tmp_mac)); |
b2998086 PR |
1098 | memcpy(&tmp_mac.macaddr, macaddr, ETH_ALEN); |
1099 | mac = hash_get(zevpn->mac_table, &tmp_mac, zebra_evpn_mac_alloc); | |
24268cd0 | 1100 | |
b2998086 PR |
1101 | mac->zevpn = zevpn; |
1102 | mac->dad_mac_auto_recovery_timer = NULL; | |
24268cd0 | 1103 | |
b2998086 PR |
1104 | mac->neigh_list = list_new(); |
1105 | mac->neigh_list->cmp = neigh_list_cmp; | |
24268cd0 | 1106 | |
f1dbb1c7 | 1107 | mac->uptime = monotime(NULL); |
b2998086 | 1108 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
b16e8004 | 1109 | char mac_buf[MAC_BUF_SIZE]; |
24268cd0 | 1110 | |
ef7b8be4 DL |
1111 | zlog_debug("%s: MAC %pEA flags %s", __func__, |
1112 | &mac->macaddr, | |
b16e8004 DS |
1113 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1114 | sizeof(mac_buf))); | |
b2998086 PR |
1115 | } |
1116 | return mac; | |
24268cd0 PR |
1117 | } |
1118 | ||
1119 | /* | |
b2998086 | 1120 | * Delete MAC entry. |
24268cd0 | 1121 | */ |
3198b2b3 | 1122 | int zebra_evpn_mac_del(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 1123 | { |
3198b2b3 | 1124 | struct zebra_mac *tmp_mac; |
24268cd0 | 1125 | |
b2998086 | 1126 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
b16e8004 | 1127 | char mac_buf[MAC_BUF_SIZE]; |
b2998086 | 1128 | |
ef7b8be4 DL |
1129 | zlog_debug("%s: MAC %pEA flags %s", __func__, |
1130 | &mac->macaddr, | |
b16e8004 DS |
1131 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1132 | sizeof(mac_buf))); | |
24268cd0 PR |
1133 | } |
1134 | ||
b2998086 PR |
1135 | /* force de-ref any ES entry linked to the MAC */ |
1136 | zebra_evpn_es_mac_deref_entry(mac); | |
24268cd0 | 1137 | |
8b07f173 AK |
1138 | /* remove links to the destination access port */ |
1139 | zebra_evpn_mac_clear_fwd_info(mac); | |
1140 | ||
b2998086 PR |
1141 | /* Cancel proxy hold timer */ |
1142 | zebra_evpn_mac_stop_hold_timer(mac); | |
24268cd0 | 1143 | |
b2998086 PR |
1144 | /* Cancel auto recovery */ |
1145 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
24268cd0 | 1146 | |
d5fdae8f CS |
1147 | /* If the MAC is freed before the neigh we will end up |
1148 | * with a stale pointer against the neigh. | |
1149 | * The situation can arise when a MAC is in remote state | |
1150 | * and its associated neigh is local state. | |
1151 | * zebra_evpn_cfg_cleanup() cleans up remote neighs and MACs. | |
1152 | * Instead of deleting remote MAC, if its neigh list is non-empty | |
1153 | * (associated to local neighs), mark the MAC as AUTO. | |
1154 | */ | |
1155 | if (!list_isempty(mac->neigh_list)) { | |
1156 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1157 | zlog_debug( | |
1158 | "MAC %pEA (flags 0x%x vni %u) has non-empty neigh list " | |
1159 | "count %u, mark MAC as AUTO", | |
1160 | &mac->macaddr, mac->flags, zevpn->vni, | |
1161 | listcount(mac->neigh_list)); | |
1162 | ||
1163 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
1164 | return 0; | |
1165 | } | |
1166 | ||
b2998086 | 1167 | list_delete(&mac->neigh_list); |
24268cd0 | 1168 | |
b2998086 PR |
1169 | /* Free the VNI hash entry and allocated memory. */ |
1170 | tmp_mac = hash_release(zevpn->mac_table, mac); | |
1171 | XFREE(MTYPE_MAC, tmp_mac); | |
24268cd0 | 1172 | |
b2998086 PR |
1173 | return 0; |
1174 | } | |
24268cd0 | 1175 | |
852d9f97 SW |
1176 | /* |
1177 | * Add Auto MAC entry. | |
1178 | */ | |
1179 | struct zebra_mac *zebra_evpn_mac_add_auto(struct zebra_evpn *zevpn, | |
1180 | const struct ethaddr *macaddr) | |
1181 | { | |
1182 | struct zebra_mac *mac; | |
1183 | ||
1184 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1185 | if (!mac) | |
1186 | return NULL; | |
1187 | ||
1188 | zebra_evpn_mac_clear_fwd_info(mac); | |
1189 | memset(&mac->flags, 0, sizeof(uint32_t)); | |
1190 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
1191 | ||
1192 | return mac; | |
1193 | } | |
1194 | ||
b2998086 | 1195 | static bool zebra_evpn_check_mac_del_from_db(struct mac_walk_ctx *wctx, |
3198b2b3 | 1196 | struct zebra_mac *mac) |
b2998086 PR |
1197 | { |
1198 | if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_LOCAL)) | |
1199 | return true; | |
1200 | else if ((wctx->flags & DEL_REMOTE_MAC) | |
1201 | && (mac->flags & ZEBRA_MAC_REMOTE)) | |
1202 | return true; | |
1203 | else if ((wctx->flags & DEL_REMOTE_MAC_FROM_VTEP) | |
1204 | && (mac->flags & ZEBRA_MAC_REMOTE) | |
1205 | && IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &wctx->r_vtep_ip)) | |
1206 | return true; | |
1207 | else if ((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_AUTO) | |
1208 | && !listcount(mac->neigh_list)) { | |
1209 | if (IS_ZEBRA_DEBUG_VXLAN) { | |
b16e8004 | 1210 | char mac_buf[MAC_BUF_SIZE]; |
24268cd0 | 1211 | |
24268cd0 | 1212 | zlog_debug( |
ef7b8be4 DL |
1213 | "%s: Del MAC %pEA flags %s", __func__, |
1214 | &mac->macaddr, | |
b16e8004 DS |
1215 | zebra_evpn_zebra_mac_flag_dump( |
1216 | mac, mac_buf, sizeof(mac_buf))); | |
b2998086 PR |
1217 | } |
1218 | wctx->uninstall = 0; | |
24268cd0 | 1219 | |
b2998086 PR |
1220 | return true; |
1221 | } | |
24268cd0 | 1222 | |
b2998086 PR |
1223 | return false; |
1224 | } | |
24268cd0 | 1225 | |
b2998086 PR |
1226 | /* |
1227 | * Free MAC hash entry (callback) | |
1228 | */ | |
1229 | static void zebra_evpn_mac_del_hash_entry(struct hash_bucket *bucket, void *arg) | |
1230 | { | |
1231 | struct mac_walk_ctx *wctx = arg; | |
3198b2b3 | 1232 | struct zebra_mac *mac = bucket->data; |
24268cd0 | 1233 | |
b2998086 PR |
1234 | if (zebra_evpn_check_mac_del_from_db(wctx, mac)) { |
1235 | if (wctx->upd_client && (mac->flags & ZEBRA_MAC_LOCAL)) { | |
1236 | zebra_evpn_mac_send_del_to_client(wctx->zevpn->vni, | |
1237 | &mac->macaddr, | |
1238 | mac->flags, false); | |
1239 | } | |
1240 | if (wctx->uninstall) { | |
1241 | if (zebra_evpn_mac_is_static(mac)) | |
1242 | zebra_evpn_sync_mac_dp_install( | |
1243 | mac, false /* set_inactive */, | |
1244 | true /* force_clear_static */, | |
1245 | __func__); | |
24268cd0 | 1246 | |
b2998086 | 1247 | if (mac->flags & ZEBRA_MAC_REMOTE) |
f3722826 AK |
1248 | zebra_evpn_rem_mac_uninstall(wctx->zevpn, mac, |
1249 | false /*force*/); | |
24268cd0 | 1250 | } |
b2998086 PR |
1251 | |
1252 | zebra_evpn_mac_del(wctx->zevpn, mac); | |
24268cd0 PR |
1253 | } |
1254 | ||
24268cd0 PR |
1255 | return; |
1256 | } | |
1257 | ||
24268cd0 | 1258 | /* |
b2998086 | 1259 | * Delete all MAC entries for this EVPN. |
24268cd0 | 1260 | */ |
f6371c34 DS |
1261 | void zebra_evpn_mac_del_all(struct zebra_evpn *zevpn, int uninstall, |
1262 | int upd_client, uint32_t flags) | |
24268cd0 | 1263 | { |
b2998086 | 1264 | struct mac_walk_ctx wctx; |
24268cd0 | 1265 | |
b2998086 | 1266 | if (!zevpn->mac_table) |
24268cd0 PR |
1267 | return; |
1268 | ||
6006b807 | 1269 | memset(&wctx, 0, sizeof(wctx)); |
b2998086 PR |
1270 | wctx.zevpn = zevpn; |
1271 | wctx.uninstall = uninstall; | |
1272 | wctx.upd_client = upd_client; | |
1273 | wctx.flags = flags; | |
24268cd0 | 1274 | |
b2998086 PR |
1275 | hash_iterate(zevpn->mac_table, zebra_evpn_mac_del_hash_entry, &wctx); |
1276 | } | |
24268cd0 | 1277 | |
b2998086 PR |
1278 | /* |
1279 | * Look up MAC hash entry. | |
1280 | */ | |
3198b2b3 DS |
1281 | struct zebra_mac *zebra_evpn_mac_lookup(struct zebra_evpn *zevpn, |
1282 | const struct ethaddr *mac) | |
b2998086 | 1283 | { |
3198b2b3 DS |
1284 | struct zebra_mac tmp; |
1285 | struct zebra_mac *pmac; | |
24268cd0 | 1286 | |
b2998086 PR |
1287 | memset(&tmp, 0, sizeof(tmp)); |
1288 | memcpy(&tmp.macaddr, mac, ETH_ALEN); | |
1289 | pmac = hash_lookup(zevpn->mac_table, &tmp); | |
24268cd0 | 1290 | |
b2998086 PR |
1291 | return pmac; |
1292 | } | |
24268cd0 | 1293 | |
b2998086 PR |
1294 | /* |
1295 | * Inform BGP about local MAC addition. | |
1296 | */ | |
1a3bd37f | 1297 | int zebra_evpn_mac_send_add_to_client(vni_t vni, const struct ethaddr *macaddr, |
b2998086 PR |
1298 | uint32_t mac_flags, uint32_t seq, |
1299 | struct zebra_evpn_es *es) | |
1300 | { | |
1301 | uint8_t flags = 0; | |
24268cd0 | 1302 | |
b2998086 PR |
1303 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_LOCAL_INACTIVE)) { |
1304 | /* host reachability has not been verified locally */ | |
24268cd0 | 1305 | |
b2998086 PR |
1306 | /* if no ES peer is claiming reachability we can't advertise the |
1307 | * entry | |
1308 | */ | |
1309 | if (!CHECK_FLAG(mac_flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1310 | return 0; | |
24268cd0 | 1311 | |
b2998086 PR |
1312 | /* ES peers are claiming reachability; we will |
1313 | * advertise the entry but with a proxy flag | |
24268cd0 | 1314 | */ |
b2998086 PR |
1315 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT); |
1316 | } | |
24268cd0 | 1317 | |
b2998086 PR |
1318 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_STICKY)) |
1319 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
1320 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_DEF_GW)) | |
1321 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
24268cd0 | 1322 | |
b2998086 PR |
1323 | return zebra_evpn_macip_send_msg_to_client(vni, macaddr, NULL, flags, |
1324 | seq, ZEBRA_NEIGH_ACTIVE, es, | |
1325 | ZEBRA_MACIP_ADD); | |
1326 | } | |
24268cd0 | 1327 | |
b2998086 PR |
1328 | /* |
1329 | * Inform BGP about local MAC deletion. | |
1330 | */ | |
1a3bd37f | 1331 | int zebra_evpn_mac_send_del_to_client(vni_t vni, const struct ethaddr *macaddr, |
b2998086 PR |
1332 | uint32_t flags, bool force) |
1333 | { | |
1334 | if (!force) { | |
1335 | if (CHECK_FLAG(flags, ZEBRA_MAC_LOCAL_INACTIVE) | |
1336 | && !CHECK_FLAG(flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1337 | /* the host was not advertised - nothing to delete */ | |
1338 | return 0; | |
24268cd0 PR |
1339 | } |
1340 | ||
b2998086 PR |
1341 | return zebra_evpn_macip_send_msg_to_client( |
1342 | vni, macaddr, NULL, 0 /* flags */, 0 /* seq */, | |
1343 | ZEBRA_NEIGH_ACTIVE, NULL, ZEBRA_MACIP_DEL); | |
24268cd0 PR |
1344 | } |
1345 | ||
1346 | /* | |
b2998086 | 1347 | * wrapper to create a MAC hash table |
24268cd0 | 1348 | */ |
b2998086 | 1349 | struct hash *zebra_mac_db_create(const char *desc) |
24268cd0 | 1350 | { |
da55bcbc | 1351 | return hash_create_size(8, mac_hash_keymake, mac_cmp, desc); |
24268cd0 PR |
1352 | } |
1353 | ||
b2998086 | 1354 | /* program sync mac flags in the dataplane */ |
3198b2b3 | 1355 | int zebra_evpn_sync_mac_dp_install(struct zebra_mac *mac, bool set_inactive, |
15400f95 | 1356 | bool force_clear_static, const char *caller) |
24268cd0 | 1357 | { |
b2998086 PR |
1358 | struct interface *ifp; |
1359 | bool sticky; | |
1360 | bool set_static; | |
f6371c34 | 1361 | struct zebra_evpn *zevpn = mac->zevpn; |
b2998086 PR |
1362 | vlanid_t vid; |
1363 | struct zebra_if *zif; | |
1364 | struct interface *br_ifp; | |
24268cd0 | 1365 | |
09de6e45 AK |
1366 | /* If the ES-EVI doesn't exist defer install. When the ES-EVI is |
1367 | * created we will attempt to install the mac entry again | |
1368 | */ | |
1369 | if (mac->es) { | |
1370 | struct zebra_evpn_es_evi *es_evi; | |
1371 | ||
1372 | es_evi = zebra_evpn_es_evi_find(mac->es, mac->zevpn); | |
1373 | if (!es_evi) { | |
1374 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
1375 | zlog_debug( | |
1376 | "%s: dp-install sync-mac vni %u mac %pEA es %s 0x%x %sskipped, no es-evi", | |
1377 | caller, zevpn->vni, &mac->macaddr, | |
1378 | mac->es ? mac->es->esi_str : "-", | |
1379 | mac->flags, | |
1380 | set_inactive ? "inactive " : ""); | |
1381 | return -1; | |
1382 | } | |
1383 | } | |
1384 | ||
b2998086 PR |
1385 | /* get the access vlan from the vxlan_device */ |
1386 | zebra_evpn_mac_get_access_info(mac, &ifp, &vid); | |
24268cd0 | 1387 | |
b2998086 | 1388 | if (!ifp) { |
b16e8004 DS |
1389 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1390 | char mac_buf[MAC_BUF_SIZE]; | |
1391 | ||
b2998086 | 1392 | zlog_debug( |
b16e8004 | 1393 | "%s: dp-install sync-mac vni %u mac %pEA es %s %s%sskipped, no access-port", |
15400f95 | 1394 | caller, zevpn->vni, &mac->macaddr, |
b16e8004 DS |
1395 | mac->es ? mac->es->esi_str : "-", |
1396 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1397 | sizeof(mac_buf)), | |
b2998086 | 1398 | set_inactive ? "inactive " : ""); |
b16e8004 | 1399 | } |
15400f95 | 1400 | return -1; |
b2998086 | 1401 | } |
24268cd0 | 1402 | |
b2998086 PR |
1403 | zif = ifp->info; |
1404 | br_ifp = zif->brslave_info.br_if; | |
1405 | if (!br_ifp) { | |
b16e8004 DS |
1406 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1407 | char mac_buf[MAC_BUF_SIZE]; | |
1408 | ||
b2998086 | 1409 | zlog_debug( |
b16e8004 | 1410 | "%s: dp-install sync-mac vni %u mac %pEA es %s %s%sskipped, no br", |
15400f95 | 1411 | caller, zevpn->vni, &mac->macaddr, |
b16e8004 DS |
1412 | mac->es ? mac->es->esi_str : "-", |
1413 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1414 | sizeof(mac_buf)), | |
b2998086 | 1415 | set_inactive ? "inactive " : ""); |
b16e8004 | 1416 | } |
15400f95 | 1417 | return -1; |
b2998086 | 1418 | } |
24268cd0 | 1419 | |
b2998086 PR |
1420 | sticky = !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY); |
1421 | if (force_clear_static) | |
1422 | set_static = false; | |
1423 | else | |
1424 | set_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1425 | |
15400f95 AK |
1426 | /* We can install a local mac that has been synced from the peer |
1427 | * over the VxLAN-overlay/network-port if fast failover is not | |
1428 | * supported and if the local ES is oper-down. | |
1429 | */ | |
1430 | if (mac->es && zebra_evpn_es_local_mac_via_network_port(mac->es)) { | |
b16e8004 DS |
1431 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1432 | char mac_buf[MAC_BUF_SIZE]; | |
1433 | ||
15400f95 | 1434 | zlog_debug( |
b16e8004 | 1435 | "dp-%s sync-nw-mac vni %u mac %pEA es %s %s%s", |
15400f95 AK |
1436 | set_static ? "install" : "uninstall", |
1437 | zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1438 | mac->es ? mac->es->esi_str : "-", |
1439 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1440 | sizeof(mac_buf)), | |
15400f95 | 1441 | set_inactive ? "inactive " : ""); |
b16e8004 | 1442 | } |
15400f95 AK |
1443 | if (set_static) |
1444 | /* XXX - old_static needs to be computed more | |
1445 | * accurately | |
1446 | */ | |
1447 | zebra_evpn_rem_mac_install(zevpn, mac, | |
1448 | true /* old_static */); | |
1449 | else | |
1450 | zebra_evpn_rem_mac_uninstall(zevpn, mac, | |
1451 | false /* force */); | |
1452 | ||
1453 | return 0; | |
1454 | } | |
1455 | ||
b16e8004 DS |
1456 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1457 | char mac_buf[MAC_BUF_SIZE]; | |
1458 | ||
1459 | zlog_debug("dp-install sync-mac vni %u mac %pEA es %s %s%s%s", | |
1460 | zevpn->vni, &mac->macaddr, | |
1461 | mac->es ? mac->es->esi_str : "-", | |
1462 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1463 | sizeof(mac_buf)), | |
1464 | set_static ? "static " : "", | |
1465 | set_inactive ? "inactive " : ""); | |
1466 | } | |
24268cd0 | 1467 | |
b2998086 PR |
1468 | dplane_local_mac_add(ifp, br_ifp, vid, &mac->macaddr, sticky, |
1469 | set_static, set_inactive); | |
15400f95 | 1470 | return 0; |
24268cd0 PR |
1471 | } |
1472 | ||
3198b2b3 DS |
1473 | void zebra_evpn_mac_send_add_del_to_client(struct zebra_mac *mac, |
1474 | bool old_bgp_ready, | |
b2998086 | 1475 | bool new_bgp_ready) |
24268cd0 | 1476 | { |
b2998086 PR |
1477 | if (new_bgp_ready) |
1478 | zebra_evpn_mac_send_add_to_client(mac->zevpn->vni, | |
1479 | &mac->macaddr, mac->flags, | |
1480 | mac->loc_seq, mac->es); | |
1481 | else if (old_bgp_ready) | |
1482 | zebra_evpn_mac_send_del_to_client(mac->zevpn->vni, | |
1483 | &mac->macaddr, mac->flags, | |
1484 | true /* force */); | |
24268cd0 PR |
1485 | } |
1486 | ||
b2998086 PR |
1487 | /* MAC hold timer is used to age out peer-active flag. |
1488 | * | |
1489 | * During this wait time we expect the dataplane component or an | |
1490 | * external neighmgr daemon to probe existing hosts to independently | |
1491 | * establish their presence on the ES. | |
1492 | */ | |
cc9f21da | 1493 | static void zebra_evpn_mac_hold_exp_cb(struct thread *t) |
24268cd0 | 1494 | { |
3198b2b3 | 1495 | struct zebra_mac *mac; |
b2998086 PR |
1496 | bool old_bgp_ready; |
1497 | bool new_bgp_ready; | |
1498 | bool old_static; | |
1499 | bool new_static; | |
24268cd0 PR |
1500 | |
1501 | mac = THREAD_ARG(t); | |
b2998086 PR |
1502 | /* the purpose of the hold timer is to age out the peer-active |
1503 | * flag | |
1504 | */ | |
1505 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
cc9f21da | 1506 | return; |
24268cd0 | 1507 | |
b2998086 PR |
1508 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
1509 | old_static = zebra_evpn_mac_is_static(mac); | |
1510 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1511 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1512 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1513 | |
b16e8004 DS |
1514 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1515 | char mac_buf[MAC_BUF_SIZE]; | |
1516 | ||
24268cd0 | 1517 | zlog_debug( |
ef7b8be4 DL |
1518 | "sync-mac vni %u mac %pEA es %s %shold expired", |
1519 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1520 | mac->es ? mac->es->esi_str : "-", |
1521 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1522 | sizeof(mac_buf))); | |
1523 | } | |
24268cd0 | 1524 | |
b2998086 PR |
1525 | /* re-program the local mac in the dataplane if the mac is no |
1526 | * longer static | |
1527 | */ | |
1528 | if (old_static != new_static) | |
1529 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1530 | false /* force_clear_static */, | |
1531 | __func__); | |
24268cd0 | 1532 | |
b2998086 PR |
1533 | /* inform bgp if needed */ |
1534 | if (old_bgp_ready != new_bgp_ready) | |
1535 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1536 | new_bgp_ready); | |
24268cd0 PR |
1537 | } |
1538 | ||
3198b2b3 | 1539 | static inline void zebra_evpn_mac_start_hold_timer(struct zebra_mac *mac) |
24268cd0 | 1540 | { |
b2998086 PR |
1541 | if (mac->hold_timer) |
1542 | return; | |
24268cd0 | 1543 | |
b16e8004 DS |
1544 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1545 | char mac_buf[MAC_BUF_SIZE]; | |
1546 | ||
24268cd0 | 1547 | zlog_debug( |
ef7b8be4 DL |
1548 | "sync-mac vni %u mac %pEA es %s %shold started", |
1549 | mac->zevpn->vni, &mac->macaddr, | |
b16e8004 DS |
1550 | mac->es ? mac->es->esi_str : "-", |
1551 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, | |
1552 | sizeof(mac_buf))); | |
1553 | } | |
b2998086 PR |
1554 | thread_add_timer(zrouter.master, zebra_evpn_mac_hold_exp_cb, mac, |
1555 | zmh_info->mac_hold_time, &mac->hold_timer); | |
24268cd0 PR |
1556 | } |
1557 | ||
3198b2b3 | 1558 | void zebra_evpn_mac_stop_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 | ||
b2998086 | 1566 | zlog_debug( |
ef7b8be4 DL |
1567 | "sync-mac vni %u mac %pEA es %s %shold stopped", |
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 | } | |
1573 | ||
b2998086 | 1574 | THREAD_OFF(mac->hold_timer); |
24268cd0 PR |
1575 | } |
1576 | ||
3198b2b3 | 1577 | void zebra_evpn_sync_mac_del(struct zebra_mac *mac) |
24268cd0 | 1578 | { |
b2998086 PR |
1579 | bool old_static; |
1580 | bool new_static; | |
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 del vni %u mac %pEA es %s seq %d f %s", |
1587 | mac->zevpn->vni, &mac->macaddr, | |
b2998086 | 1588 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
1589 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1590 | sizeof(mac_buf))); | |
1591 | } | |
1592 | ||
b2998086 PR |
1593 | old_static = zebra_evpn_mac_is_static(mac); |
1594 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1595 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE)) | |
1596 | zebra_evpn_mac_start_hold_timer(mac); | |
1597 | new_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1598 | |
b2998086 PR |
1599 | if (old_static != new_static) |
1600 | /* program the local mac in the kernel */ | |
1601 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1602 | false /* force_clear_static */, | |
1603 | __func__); | |
24268cd0 PR |
1604 | } |
1605 | ||
f6371c34 | 1606 | static inline bool zebra_evpn_mac_is_bgp_seq_ok(struct zebra_evpn *zevpn, |
3198b2b3 | 1607 | struct zebra_mac *mac, |
852d9f97 | 1608 | uint32_t seq, bool sync) |
24268cd0 | 1609 | { |
7d99ad7f | 1610 | char mac_buf[MAC_BUF_SIZE]; |
b2998086 | 1611 | uint32_t tmp_seq; |
16de1338 | 1612 | const char *n_type; |
1e1398e3 | 1613 | bool is_local = false; |
24268cd0 | 1614 | |
16de1338 | 1615 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { |
b2998086 | 1616 | tmp_seq = mac->loc_seq; |
16de1338 | 1617 | n_type = "local"; |
1e1398e3 | 1618 | is_local = true; |
16de1338 | 1619 | } else { |
b2998086 | 1620 | tmp_seq = mac->rem_seq; |
16de1338 AK |
1621 | n_type = "remote"; |
1622 | } | |
24268cd0 | 1623 | |
b2998086 | 1624 | if (seq < tmp_seq) { |
1e1398e3 SW |
1625 | |
1626 | if (is_local && !zebra_evpn_mac_is_ready_for_bgp(mac->flags)) { | |
1627 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || IS_ZEBRA_DEBUG_VXLAN) | |
1628 | zlog_debug( | |
1629 | "%s-macip not ready vni %u %s-mac %pEA lower seq %u f 0x%x", | |
1630 | sync ? "sync" : "rem", zevpn->vni, | |
1631 | n_type, &mac->macaddr, tmp_seq, | |
1632 | mac->flags); | |
1633 | return true; | |
1634 | } | |
1635 | ||
b2998086 PR |
1636 | /* if the mac was never advertised to bgp we must accept |
1637 | * whatever sequence number bgp sends | |
b2998086 | 1638 | */ |
da823882 | 1639 | if (!is_local && zebra_vxlan_get_accept_bgp_seq()) { |
7d99ad7f SW |
1640 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || |
1641 | IS_ZEBRA_DEBUG_VXLAN) { | |
b2998086 | 1642 | zlog_debug( |
852d9f97 | 1643 | "%s-macip accept vni %u %s-mac %pEA lower seq %u f %s", |
16de1338 | 1644 | sync ? "sync" : "rem", zevpn->vni, |
852d9f97 | 1645 | n_type, &mac->macaddr, tmp_seq, |
b16e8004 DS |
1646 | zebra_evpn_zebra_mac_flag_dump( |
1647 | mac, mac_buf, sizeof(mac_buf))); | |
1648 | } | |
1649 | ||
b2998086 PR |
1650 | return true; |
1651 | } | |
24268cd0 | 1652 | |
b16e8004 | 1653 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC || IS_ZEBRA_DEBUG_VXLAN) { |
b2998086 | 1654 | zlog_debug( |
852d9f97 | 1655 | "%s-macip ignore vni %u %s-mac %pEA as existing has higher seq %u f %s", |
16de1338 | 1656 | sync ? "sync" : "rem", zevpn->vni, n_type, |
852d9f97 | 1657 | &mac->macaddr, tmp_seq, |
b16e8004 DS |
1658 | zebra_evpn_zebra_mac_flag_dump( |
1659 | mac, mac_buf, sizeof(mac_buf))); | |
1660 | } | |
7d99ad7f | 1661 | |
b2998086 | 1662 | return false; |
24268cd0 PR |
1663 | } |
1664 | ||
b2998086 | 1665 | return true; |
24268cd0 PR |
1666 | } |
1667 | ||
852d9f97 SW |
1668 | struct zebra_mac *zebra_evpn_proc_sync_mac_update(struct zebra_evpn *zevpn, |
1669 | const struct ethaddr *macaddr, | |
1670 | uint16_t ipa_len, | |
1671 | const struct ipaddr *ipaddr, | |
1672 | uint8_t flags, uint32_t seq, | |
1673 | const esi_t *esi) | |
24268cd0 | 1674 | { |
3198b2b3 | 1675 | struct zebra_mac *mac; |
b2998086 PR |
1676 | bool inform_bgp = false; |
1677 | bool inform_dataplane = false; | |
1678 | bool seq_change = false; | |
1679 | bool es_change = false; | |
1680 | uint32_t tmp_seq; | |
b2998086 PR |
1681 | char ipbuf[INET6_ADDRSTRLEN]; |
1682 | bool old_local = false; | |
1683 | bool old_bgp_ready; | |
1684 | bool new_bgp_ready; | |
852d9f97 | 1685 | bool created = false; |
24268cd0 | 1686 | |
b2998086 PR |
1687 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); |
1688 | if (!mac) { | |
1689 | /* if it is a new local path we need to inform both | |
1690 | * the control protocol and the data-plane | |
1691 | */ | |
1692 | inform_bgp = true; | |
1693 | inform_dataplane = true; | |
24268cd0 | 1694 | |
b2998086 PR |
1695 | /* create the MAC and associate it with the dest ES */ |
1696 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
1697 | zebra_evpn_es_mac_ref(mac, esi); | |
24268cd0 | 1698 | |
b2998086 PR |
1699 | /* local mac activated by an ES peer */ |
1700 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
1701 | /* if mac-only route setup peer flags */ | |
1702 | if (!ipa_len) { | |
1703 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) | |
1704 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1705 | else | |
1706 | SET_FLAG(mac->flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1707 | } | |
1708 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
1709 | old_bgp_ready = false; | |
1710 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
852d9f97 | 1711 | created = true; |
b2998086 PR |
1712 | } else { |
1713 | uint32_t old_flags; | |
1714 | uint32_t new_flags; | |
1715 | bool old_static; | |
1716 | bool new_static; | |
1717 | bool sticky; | |
1718 | bool remote_gw; | |
24268cd0 | 1719 | |
f1dbb1c7 DS |
1720 | mac->uptime = monotime(NULL); |
1721 | ||
b2998086 PR |
1722 | old_flags = mac->flags; |
1723 | sticky = !!CHECK_FLAG(old_flags, ZEBRA_MAC_STICKY); | |
1724 | remote_gw = !!CHECK_FLAG(old_flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
1725 | if (sticky || remote_gw) { | |
1726 | if (IS_ZEBRA_DEBUG_EVPN_MH_NEIGH) | |
1727 | zlog_debug( | |
ef7b8be4 DL |
1728 | "Ignore sync-macip vni %u mac %pEA%s%s%s%s", |
1729 | zevpn->vni, macaddr, | |
b2998086 PR |
1730 | ipa_len ? " IP " : "", |
1731 | ipa_len ? ipaddr2str(ipaddr, ipbuf, | |
1732 | sizeof(ipbuf)) | |
1733 | : "", | |
1734 | sticky ? " sticky" : "", | |
1735 | remote_gw ? " remote_gw" : ""); | |
b2998086 PR |
1736 | return NULL; |
1737 | } | |
852d9f97 | 1738 | if (!zebra_evpn_mac_is_bgp_seq_ok(zevpn, mac, seq, true)) |
b2998086 | 1739 | return NULL; |
24268cd0 | 1740 | |
b2998086 PR |
1741 | old_local = !!CHECK_FLAG(old_flags, ZEBRA_MAC_LOCAL); |
1742 | old_static = zebra_evpn_mac_is_static(mac); | |
24268cd0 | 1743 | |
b2998086 PR |
1744 | /* re-build the mac flags */ |
1745 | new_flags = 0; | |
1746 | SET_FLAG(new_flags, ZEBRA_MAC_LOCAL); | |
1747 | /* retain old local activity flag */ | |
852d9f97 | 1748 | if (old_flags & ZEBRA_MAC_LOCAL) |
b2998086 | 1749 | new_flags |= (old_flags & ZEBRA_MAC_LOCAL_INACTIVE); |
852d9f97 | 1750 | else |
b2998086 | 1751 | new_flags |= ZEBRA_MAC_LOCAL_INACTIVE; |
852d9f97 | 1752 | |
b2998086 PR |
1753 | if (ipa_len) { |
1754 | /* if mac-ip route do NOT update the peer flags | |
1755 | * i.e. retain only flags as is | |
1756 | */ | |
1757 | new_flags |= (old_flags & ZEBRA_MAC_ALL_PEER_FLAGS); | |
1758 | } else { | |
1759 | /* if mac-only route update peer flags */ | |
1760 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_PROXY_ADVERT)) { | |
1761 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_PROXY); | |
1762 | /* if the mac was peer-active previously we | |
1763 | * need to keep the flag and start the | |
1764 | * holdtimer on it. the peer-active flag is | |
1765 | * cleared on holdtimer expiry. | |
1766 | */ | |
1767 | if (CHECK_FLAG(old_flags, | |
1768 | ZEBRA_MAC_ES_PEER_ACTIVE)) { | |
1769 | SET_FLAG(new_flags, | |
1770 | ZEBRA_MAC_ES_PEER_ACTIVE); | |
1771 | zebra_evpn_mac_start_hold_timer(mac); | |
1772 | } | |
1773 | } else { | |
1774 | SET_FLAG(new_flags, ZEBRA_MAC_ES_PEER_ACTIVE); | |
1775 | /* stop hold timer if a peer has verified | |
1776 | * reachability | |
1777 | */ | |
1778 | zebra_evpn_mac_stop_hold_timer(mac); | |
1779 | } | |
1780 | } | |
1781 | mac->rem_seq = 0; | |
8b07f173 | 1782 | zebra_evpn_mac_clear_fwd_info(mac); |
b2998086 | 1783 | mac->flags = new_flags; |
24268cd0 | 1784 | |
b16e8004 DS |
1785 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC && (old_flags != new_flags)) { |
1786 | char mac_buf[MAC_BUF_SIZE], omac_buf[MAC_BUF_SIZE]; | |
3198b2b3 | 1787 | struct zebra_mac omac; |
b16e8004 DS |
1788 | |
1789 | omac.flags = old_flags; | |
b2998086 | 1790 | zlog_debug( |
ef7b8be4 DL |
1791 | "sync-mac vni %u mac %pEA old_f %snew_f %s", |
1792 | zevpn->vni, macaddr, | |
b16e8004 DS |
1793 | zebra_evpn_zebra_mac_flag_dump( |
1794 | &omac, omac_buf, sizeof(omac_buf)), | |
1795 | zebra_evpn_zebra_mac_flag_dump( | |
1796 | mac, mac_buf, sizeof(mac_buf))); | |
1797 | } | |
24268cd0 | 1798 | |
b2998086 PR |
1799 | /* update es */ |
1800 | es_change = zebra_evpn_es_mac_ref(mac, esi); | |
1801 | /* if mac dest change - inform both sides */ | |
1802 | if (es_change) { | |
1803 | inform_bgp = true; | |
1804 | inform_dataplane = true; | |
b2998086 | 1805 | } |
8b07f173 | 1806 | |
b2998086 PR |
1807 | /* if peer-flag is being set notify dataplane that the |
1808 | * entry must not be expired because of local inactivity | |
1809 | */ | |
1810 | new_static = zebra_evpn_mac_is_static(mac); | |
1811 | if (old_static != new_static) | |
1812 | inform_dataplane = true; | |
24268cd0 | 1813 | |
b2998086 PR |
1814 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(old_flags); |
1815 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
1816 | if (old_bgp_ready != new_bgp_ready) | |
1817 | inform_bgp = true; | |
1818 | } | |
24268cd0 | 1819 | |
24268cd0 | 1820 | |
b2998086 PR |
1821 | /* update sequence number; if that results in a new local sequence |
1822 | * inform bgp | |
1823 | */ | |
1824 | tmp_seq = MAX(mac->loc_seq, seq); | |
1825 | if (tmp_seq != mac->loc_seq) { | |
1826 | mac->loc_seq = tmp_seq; | |
1827 | seq_change = true; | |
1828 | inform_bgp = true; | |
1829 | } | |
24268cd0 | 1830 | |
b16e8004 DS |
1831 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
1832 | char mac_buf[MAC_BUF_SIZE]; | |
1833 | ||
ef7b8be4 | 1834 | zlog_debug("sync-mac %s vni %u mac %pEA es %s seq %d f %s%s%s", |
852d9f97 | 1835 | created ? "created" : "updated", zevpn->vni, macaddr, |
b2998086 | 1836 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
1837 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
1838 | sizeof(mac_buf)), | |
1839 | inform_bgp ? "inform_bgp" : "", | |
b2998086 | 1840 | inform_dataplane ? " inform_dp" : ""); |
b16e8004 | 1841 | } |
24268cd0 | 1842 | |
b2998086 PR |
1843 | if (inform_bgp) |
1844 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
1845 | new_bgp_ready); | |
24268cd0 | 1846 | |
b2998086 PR |
1847 | /* neighs using the mac may need to be re-sent to |
1848 | * bgp with updated info | |
1849 | */ | |
1850 | if (seq_change || es_change || !old_local) | |
1851 | zebra_evpn_process_neigh_on_local_mac_change( | |
1852 | zevpn, mac, seq_change, es_change); | |
24268cd0 | 1853 | |
852d9f97 SW |
1854 | if (inform_dataplane && !ipa_len) { |
1855 | /* program the local mac in the kernel. when the ES | |
1856 | * change we need to force the dataplane to reset | |
1857 | * the activity as we are yet to establish activity | |
1858 | * locally | |
1859 | */ | |
1860 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
1861 | false /* force_clear_static */, | |
1862 | __func__); | |
b2998086 | 1863 | } |
24268cd0 | 1864 | |
b2998086 | 1865 | return mac; |
24268cd0 PR |
1866 | } |
1867 | ||
07b12758 | 1868 | /* update local forwarding info. return true if a dest-ES change |
b2998086 PR |
1869 | * is detected |
1870 | */ | |
3198b2b3 | 1871 | static bool zebra_evpn_local_mac_update_fwd_info(struct zebra_mac *mac, |
d9d3455e PR |
1872 | struct interface *ifp, |
1873 | vlanid_t vid) | |
24268cd0 | 1874 | { |
b2998086 PR |
1875 | struct zebra_if *zif = ifp->info; |
1876 | bool es_change; | |
47c58929 PG |
1877 | ns_id_t local_ns_id = NS_DEFAULT; |
1878 | struct zebra_vrf *zvrf; | |
00a7710c | 1879 | struct zebra_evpn_es *es; |
47c58929 | 1880 | |
096f7609 | 1881 | zvrf = ifp->vrf->info; |
47c58929 PG |
1882 | if (zvrf && zvrf->zns) |
1883 | local_ns_id = zvrf->zns->ns_id; | |
24268cd0 | 1884 | |
8b07f173 | 1885 | zebra_evpn_mac_clear_fwd_info(mac); |
24268cd0 | 1886 | |
00a7710c AK |
1887 | es = zif->es_info.es; |
1888 | if (es && (es->flags & ZEBRA_EVPNES_BYPASS)) | |
1889 | es = NULL; | |
1890 | es_change = zebra_evpn_es_mac_ref_entry(mac, es); | |
24268cd0 | 1891 | |
b2998086 PR |
1892 | if (!mac->es) { |
1893 | /* if es is set fwd_info is not-relevant/taped-out */ | |
1894 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
47c58929 | 1895 | mac->fwd_info.local.ns_id = local_ns_id; |
b2998086 | 1896 | mac->fwd_info.local.vid = vid; |
8b07f173 | 1897 | zebra_evpn_mac_ifp_link(mac, ifp); |
24268cd0 PR |
1898 | } |
1899 | ||
b2998086 | 1900 | return es_change; |
24268cd0 PR |
1901 | } |
1902 | ||
24268cd0 | 1903 | /* Notify Local MACs to the clienti, skips GW MAC */ |
b2998086 PR |
1904 | static void zebra_evpn_send_mac_hash_entry_to_client(struct hash_bucket *bucket, |
1905 | void *arg) | |
24268cd0 PR |
1906 | { |
1907 | struct mac_walk_ctx *wctx = arg; | |
3198b2b3 | 1908 | struct zebra_mac *zmac = bucket->data; |
24268cd0 PR |
1909 | |
1910 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_DEF_GW)) | |
1911 | return; | |
1912 | ||
1913 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) | |
b2998086 PR |
1914 | zebra_evpn_mac_send_add_to_client(wctx->zevpn->vni, |
1915 | &zmac->macaddr, zmac->flags, | |
1916 | zmac->loc_seq, zmac->es); | |
24268cd0 PR |
1917 | } |
1918 | ||
1919 | /* Iterator to Notify Local MACs of a EVPN */ | |
f6371c34 | 1920 | void zebra_evpn_send_mac_list_to_client(struct zebra_evpn *zevpn) |
24268cd0 PR |
1921 | { |
1922 | struct mac_walk_ctx wctx; | |
1923 | ||
1924 | if (!zevpn->mac_table) | |
1925 | return; | |
1926 | ||
6006b807 | 1927 | memset(&wctx, 0, sizeof(wctx)); |
24268cd0 PR |
1928 | wctx.zevpn = zevpn; |
1929 | ||
b2998086 PR |
1930 | hash_iterate(zevpn->mac_table, zebra_evpn_send_mac_hash_entry_to_client, |
1931 | &wctx); | |
24268cd0 PR |
1932 | } |
1933 | ||
3198b2b3 | 1934 | void zebra_evpn_rem_mac_del(struct zebra_evpn *zevpn, struct zebra_mac *mac) |
24268cd0 | 1935 | { |
b2998086 PR |
1936 | zebra_evpn_process_neigh_on_remote_mac_del(zevpn, mac); |
1937 | /* the remote sequence number in the auto mac entry | |
1938 | * needs to be reset to 0 as the mac entry may have | |
1939 | * been removed on all VTEPs (including | |
1940 | * the originating one) | |
1941 | */ | |
1942 | mac->rem_seq = 0; | |
24268cd0 | 1943 | |
b2998086 PR |
1944 | /* If all remote neighbors referencing a remote MAC |
1945 | * go away, we need to uninstall the MAC. | |
1946 | */ | |
1947 | if (remote_neigh_count(mac) == 0) { | |
f3722826 | 1948 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false /*force*/); |
b2998086 PR |
1949 | zebra_evpn_es_mac_deref_entry(mac); |
1950 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
24268cd0 PR |
1951 | } |
1952 | ||
b2998086 PR |
1953 | if (list_isempty(mac->neigh_list)) |
1954 | zebra_evpn_mac_del(zevpn, mac); | |
1955 | else | |
1956 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
24268cd0 PR |
1957 | } |
1958 | ||
b2998086 PR |
1959 | /* Print Duplicate MAC */ |
1960 | void zebra_evpn_print_dad_mac_hash(struct hash_bucket *bucket, void *ctxt) | |
24268cd0 | 1961 | { |
3198b2b3 | 1962 | struct zebra_mac *mac; |
24268cd0 | 1963 | |
3198b2b3 | 1964 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
1965 | if (!mac) |
1966 | return; | |
24268cd0 | 1967 | |
b2998086 PR |
1968 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
1969 | zebra_evpn_print_mac_hash(bucket, ctxt); | |
24268cd0 PR |
1970 | } |
1971 | ||
b2998086 PR |
1972 | /* Print Duplicate MAC in detail */ |
1973 | void zebra_evpn_print_dad_mac_hash_detail(struct hash_bucket *bucket, | |
1974 | void *ctxt) | |
24268cd0 | 1975 | { |
3198b2b3 | 1976 | struct zebra_mac *mac; |
24268cd0 | 1977 | |
3198b2b3 | 1978 | mac = (struct zebra_mac *)bucket->data; |
b2998086 PR |
1979 | if (!mac) |
1980 | return; | |
24268cd0 | 1981 | |
b2998086 PR |
1982 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) |
1983 | zebra_evpn_print_mac_hash_detail(bucket, ctxt); | |
24268cd0 | 1984 | } |
19fdd1be | 1985 | |
852d9f97 SW |
1986 | int zebra_evpn_mac_remote_macip_add(struct zebra_evpn *zevpn, |
1987 | struct zebra_vrf *zvrf, | |
1988 | const struct ethaddr *macaddr, | |
1989 | struct in_addr vtep_ip, uint8_t flags, | |
1990 | uint32_t seq, const esi_t *esi) | |
19fdd1be | 1991 | { |
19fdd1be PR |
1992 | bool sticky; |
1993 | bool remote_gw; | |
1994 | int update_mac = 0; | |
1995 | bool do_dad = false; | |
1996 | bool is_dup_detect = false; | |
1997 | esi_t *old_esi; | |
1998 | bool old_static = false; | |
3198b2b3 | 1999 | struct zebra_mac *mac; |
8e1337c5 AK |
2000 | bool old_es_present; |
2001 | bool new_es_present; | |
19fdd1be PR |
2002 | |
2003 | sticky = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
2004 | remote_gw = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
2005 | ||
2006 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2007 | ||
2008 | /* Ignore if the mac is already present as a gateway mac */ | |
2009 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) | |
2010 | && CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW)) { | |
2011 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2012 | zlog_debug( | |
852d9f97 SW |
2013 | "Ignore remote MACIP ADD VNI %u MAC %pEA as MAC is already configured as gateway MAC", |
2014 | zevpn->vni, macaddr); | |
19fdd1be PR |
2015 | return -1; |
2016 | } | |
2017 | ||
2018 | old_esi = (mac && mac->es) ? &mac->es->esi : zero_esi; | |
2019 | ||
2020 | /* check if the remote MAC is unknown or has a change. | |
2021 | * If so, that needs to be updated first. Note that client could | |
2022 | * install MAC and MACIP separately or just install the latter. | |
2023 | */ | |
2024 | if (!mac || !CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2025 | || sticky != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) | |
2026 | || remote_gw != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) | |
2027 | || !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &vtep_ip) | |
2028 | || memcmp(old_esi, esi, sizeof(esi_t)) || seq != mac->rem_seq) | |
2029 | update_mac = 1; | |
2030 | ||
2031 | if (update_mac) { | |
2032 | if (!mac) { | |
2033 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
19fdd1be | 2034 | zebra_evpn_es_mac_ref(mac, esi); |
19fdd1be | 2035 | } else { |
19fdd1be PR |
2036 | /* When host moves but changes its (MAC,IP) |
2037 | * binding, BGP may install a MACIP entry that | |
2038 | * corresponds to "older" location of the host | |
2039 | * in transient situations (because {IP1,M1} | |
2040 | * is a different route from {IP1,M2}). Check | |
2041 | * the sequence number and ignore this update | |
2042 | * if appropriate. | |
2043 | */ | |
852d9f97 SW |
2044 | if (!zebra_evpn_mac_is_bgp_seq_ok(zevpn, mac, seq, |
2045 | false)) | |
19fdd1be | 2046 | return -1; |
c1735c08 | 2047 | |
8e1337c5 | 2048 | old_es_present = !!mac->es; |
c1735c08 | 2049 | zebra_evpn_es_mac_ref(mac, esi); |
8e1337c5 AK |
2050 | new_es_present = !!mac->es; |
2051 | /* XXX - dataplane is curently not able to handle a MAC | |
2052 | * replace if the destination changes from L2-NHG to | |
2053 | * single VTEP and vice-versa. So delete the old entry | |
2054 | * and re-install | |
2055 | */ | |
2056 | if (old_es_present != new_es_present) | |
2057 | zebra_evpn_rem_mac_uninstall(zevpn, mac, false); | |
19fdd1be PR |
2058 | } |
2059 | ||
2060 | /* Check MAC's curent state is local (this is the case | |
2061 | * where MAC has moved from L->R) and check previous | |
2062 | * detection started via local learning. | |
2063 | * RFC-7432: A PE/VTEP that detects a MAC mobility | |
2064 | * event via local learning starts an M-second timer. | |
2065 | * | |
2066 | * VTEP-IP or seq. change alone is not considered | |
2067 | * for dup. detection. | |
2068 | * | |
2069 | * MAC is already marked duplicate set dad, then | |
2070 | * is_dup_detect will be set to not install the entry. | |
2071 | */ | |
2072 | if ((!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2073 | && mac->dad_count) | |
2074 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
2075 | do_dad = true; | |
2076 | ||
2077 | /* Remove local MAC from BGP. */ | |
2078 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
2079 | /* force drop the sync flags */ | |
2080 | old_static = zebra_evpn_mac_is_static(mac); | |
b16e8004 DS |
2081 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2082 | char mac_buf[MAC_BUF_SIZE]; | |
2083 | ||
19fdd1be | 2084 | zlog_debug( |
ef7b8be4 DL |
2085 | "sync-mac->remote vni %u mac %pEA es %s seq %d f %s", |
2086 | zevpn->vni, macaddr, | |
19fdd1be | 2087 | mac->es ? mac->es->esi_str : "-", |
b16e8004 DS |
2088 | mac->loc_seq, |
2089 | zebra_evpn_zebra_mac_flag_dump( | |
2090 | mac, mac_buf, sizeof(mac_buf))); | |
2091 | } | |
2092 | ||
19fdd1be PR |
2093 | zebra_evpn_mac_clear_sync_info(mac); |
2094 | zebra_evpn_mac_send_del_to_client(zevpn->vni, macaddr, | |
2095 | mac->flags, | |
2096 | false /* force */); | |
2097 | } | |
2098 | ||
2099 | /* Set "auto" and "remote" forwarding info. */ | |
8b07f173 | 2100 | zebra_evpn_mac_clear_fwd_info(mac); |
19fdd1be | 2101 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); |
19fdd1be PR |
2102 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); |
2103 | mac->fwd_info.r_vtep_ip = vtep_ip; | |
2104 | ||
2105 | if (sticky) | |
2106 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2107 | else | |
2108 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2109 | ||
2110 | if (remote_gw) | |
2111 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
2112 | else | |
2113 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
2114 | ||
2115 | zebra_evpn_dup_addr_detect_for_mac( | |
2116 | zvrf, mac, mac->fwd_info.r_vtep_ip, do_dad, | |
2117 | &is_dup_detect, false); | |
2118 | ||
2119 | if (!is_dup_detect) { | |
2120 | zebra_evpn_process_neigh_on_remote_mac_add(zevpn, mac); | |
2121 | /* Install the entry. */ | |
2122 | zebra_evpn_rem_mac_install(zevpn, mac, old_static); | |
2123 | } | |
2124 | } | |
2125 | ||
2126 | /* Update seq number. */ | |
2127 | mac->rem_seq = seq; | |
2128 | ||
852d9f97 | 2129 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); |
19fdd1be PR |
2130 | return 0; |
2131 | } | |
d9d3455e | 2132 | |
f6371c34 DS |
2133 | int zebra_evpn_add_update_local_mac(struct zebra_vrf *zvrf, |
2134 | struct zebra_evpn *zevpn, | |
d9d3455e | 2135 | struct interface *ifp, |
1a3bd37f | 2136 | const struct ethaddr *macaddr, vlanid_t vid, |
d9d3455e | 2137 | bool sticky, bool local_inactive, |
3198b2b3 | 2138 | bool dp_static, struct zebra_mac *mac) |
d9d3455e | 2139 | { |
d9d3455e PR |
2140 | bool mac_sticky = false; |
2141 | bool inform_client = false; | |
2142 | bool upd_neigh = false; | |
2143 | bool is_dup_detect = false; | |
2144 | struct in_addr vtep_ip = {.s_addr = 0}; | |
2145 | bool es_change = false; | |
2146 | bool new_bgp_ready; | |
2147 | /* assume inactive if not present or if not local */ | |
2148 | bool old_local_inactive = true; | |
2149 | bool old_bgp_ready = false; | |
2150 | bool inform_dataplane = false; | |
2151 | bool new_static = false; | |
2152 | ||
2bdd4461 | 2153 | assert(ifp); |
d9d3455e | 2154 | /* Check if we need to create or update or it is a NO-OP. */ |
00a7710c AK |
2155 | if (!mac) |
2156 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
d9d3455e PR |
2157 | if (!mac) { |
2158 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) | |
2159 | zlog_debug( | |
ef7b8be4 DL |
2160 | "ADD %sMAC %pEA intf %s(%u) VID %u -> VNI %u%s", |
2161 | sticky ? "sticky " : "", macaddr, | |
d9d3455e PR |
2162 | ifp->name, ifp->ifindex, vid, zevpn->vni, |
2163 | local_inactive ? " local-inactive" : ""); | |
2164 | ||
2165 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
d9d3455e PR |
2166 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); |
2167 | es_change = zebra_evpn_local_mac_update_fwd_info(mac, ifp, vid); | |
2168 | if (sticky) | |
2169 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2170 | inform_client = true; | |
2171 | } else { | |
b16e8004 DS |
2172 | if (IS_ZEBRA_DEBUG_VXLAN || IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2173 | char mac_buf[MAC_BUF_SIZE]; | |
2174 | ||
d9d3455e | 2175 | zlog_debug( |
ef7b8be4 DL |
2176 | "UPD %sMAC %pEA intf %s(%u) VID %u -> VNI %u %scurFlags %s", |
2177 | sticky ? "sticky " : "", macaddr, | |
d9d3455e PR |
2178 | ifp->name, ifp->ifindex, vid, zevpn->vni, |
2179 | local_inactive ? "local-inactive " : "", | |
b16e8004 DS |
2180 | zebra_evpn_zebra_mac_flag_dump( |
2181 | mac, mac_buf, sizeof(mac_buf))); | |
2182 | } | |
d9d3455e PR |
2183 | |
2184 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
2185 | struct interface *old_ifp; | |
2186 | vlanid_t old_vid; | |
2187 | bool old_static; | |
2188 | ||
2189 | zebra_evpn_mac_get_access_info(mac, &old_ifp, &old_vid); | |
2190 | old_bgp_ready = | |
2191 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2192 | old_local_inactive = | |
2193 | !!(mac->flags & ZEBRA_MAC_LOCAL_INACTIVE); | |
2194 | old_static = zebra_evpn_mac_is_static(mac); | |
2195 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) | |
2196 | mac_sticky = true; | |
00a7710c AK |
2197 | es_change = zebra_evpn_local_mac_update_fwd_info( |
2198 | mac, ifp, vid); | |
d9d3455e PR |
2199 | |
2200 | /* | |
2201 | * Update any changes and if changes are relevant to | |
2202 | * BGP, note it. | |
2203 | */ | |
2204 | if (mac_sticky == sticky && old_ifp == ifp | |
2205 | && old_vid == vid | |
2206 | && old_local_inactive == local_inactive | |
00a7710c | 2207 | && dp_static == old_static && !es_change) { |
d9d3455e PR |
2208 | if (IS_ZEBRA_DEBUG_VXLAN) |
2209 | zlog_debug( | |
ef7b8be4 | 2210 | " Add/Update %sMAC %pEA intf %s(%u) VID %u -> VNI %u%s, " |
d9d3455e | 2211 | "entry exists and has not changed ", |
4e9a9863 | 2212 | sticky ? "sticky " : "", |
ef7b8be4 DL |
2213 | macaddr, ifp->name, |
2214 | ifp->ifindex, vid, zevpn->vni, | |
d9d3455e PR |
2215 | local_inactive |
2216 | ? " local_inactive" | |
2217 | : ""); | |
2218 | return 0; | |
2219 | } | |
2220 | if (mac_sticky != sticky) { | |
2221 | if (sticky) | |
2222 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2223 | else | |
2224 | UNSET_FLAG(mac->flags, | |
2225 | ZEBRA_MAC_STICKY); | |
2226 | inform_client = true; | |
2227 | } | |
2228 | ||
d9d3455e PR |
2229 | /* If an es_change is detected we need to advertise |
2230 | * the route with a sequence that is one | |
2231 | * greater. This is need to indicate a mac-move | |
2232 | * to the ES peers | |
2233 | */ | |
2234 | if (es_change) { | |
00a7710c AK |
2235 | /* update the sequence number only if the entry |
2236 | * is locally active | |
2237 | */ | |
2238 | if (!local_inactive) | |
2239 | mac->loc_seq = mac->loc_seq + 1; | |
d9d3455e PR |
2240 | /* force drop the peer/sync info as it is |
2241 | * simply no longer relevant | |
2242 | */ | |
2243 | if (CHECK_FLAG(mac->flags, | |
2244 | ZEBRA_MAC_ALL_PEER_FLAGS)) { | |
2245 | zebra_evpn_mac_clear_sync_info(mac); | |
2246 | new_static = | |
2247 | zebra_evpn_mac_is_static(mac); | |
2248 | /* if we clear peer-flags we | |
2249 | * also need to notify the dataplane | |
2250 | * to drop the static flag | |
2251 | */ | |
2252 | if (old_static != new_static) | |
2253 | inform_dataplane = true; | |
2254 | } | |
2255 | } | |
2256 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
2257 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { | |
2258 | bool do_dad = false; | |
2259 | ||
2260 | /* | |
2261 | * MAC has either moved or was "internally" created due | |
2262 | * to a neighbor learn and is now actually learnt. If | |
2263 | * it was learnt as a remote sticky MAC, this is an | |
2264 | * operator error. | |
2265 | */ | |
2266 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) { | |
2267 | flog_warn( | |
2268 | EC_ZEBRA_STICKY_MAC_ALREADY_LEARNT, | |
ef7b8be4 DL |
2269 | "MAC %pEA already learnt as remote sticky MAC behind VTEP %pI4 VNI %u", |
2270 | macaddr, | |
9bcef951 | 2271 | &mac->fwd_info.r_vtep_ip, |
d9d3455e PR |
2272 | zevpn->vni); |
2273 | return 0; | |
2274 | } | |
2275 | ||
2276 | /* If an actual move, compute MAC's seq number */ | |
2277 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
2278 | mac->loc_seq = | |
2279 | MAX(mac->rem_seq + 1, mac->loc_seq); | |
2280 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
2281 | /* Trigger DAD for remote MAC */ | |
2282 | do_dad = true; | |
2283 | } | |
2284 | ||
2285 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
2286 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2287 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
2288 | es_change = zebra_evpn_local_mac_update_fwd_info( | |
2289 | mac, ifp, vid); | |
2290 | if (sticky) | |
2291 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2292 | else | |
2293 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2294 | /* | |
2295 | * We have to inform BGP of this MAC as well as process | |
2296 | * all neighbors. | |
2297 | */ | |
2298 | inform_client = true; | |
2299 | upd_neigh = true; | |
2300 | ||
2301 | zebra_evpn_dup_addr_detect_for_mac( | |
2302 | zvrf, mac, vtep_ip, do_dad, &is_dup_detect, | |
2303 | true); | |
2304 | if (is_dup_detect) { | |
2305 | inform_client = false; | |
2306 | upd_neigh = false; | |
839dfe29 | 2307 | es_change = false; |
d9d3455e PR |
2308 | } |
2309 | } | |
2310 | } | |
2311 | ||
2312 | /* if the dataplane thinks the entry is sync but it is | |
69711b3f AK |
2313 | * not sync in zebra (or vice-versa) we need to re-install |
2314 | * to fixup | |
d9d3455e | 2315 | */ |
69711b3f AK |
2316 | new_static = zebra_evpn_mac_is_static(mac); |
2317 | if (dp_static != new_static) | |
2318 | inform_dataplane = true; | |
d9d3455e PR |
2319 | |
2320 | if (local_inactive) | |
2321 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2322 | else | |
2323 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2324 | ||
2325 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2326 | /* if local-activity has changed we need update bgp | |
2327 | * even if bgp already knows about the mac | |
2328 | */ | |
2329 | if ((old_local_inactive != local_inactive) | |
2330 | || (new_bgp_ready != old_bgp_ready)) { | |
b16e8004 DS |
2331 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2332 | char mac_buf[MAC_BUF_SIZE]; | |
2333 | ||
d9d3455e | 2334 | zlog_debug( |
ef7b8be4 DL |
2335 | "local mac vni %u mac %pEA es %s seq %d f %s%s", |
2336 | zevpn->vni, macaddr, | |
d9d3455e | 2337 | mac->es ? mac->es->esi_str : "", mac->loc_seq, |
b16e8004 DS |
2338 | zebra_evpn_zebra_mac_flag_dump(mac, mac_buf, |
2339 | sizeof(mac_buf)), | |
2340 | local_inactive ? "local-inactive" : ""); | |
2341 | } | |
2342 | ||
839dfe29 CS |
2343 | if (!is_dup_detect) |
2344 | inform_client = true; | |
d9d3455e PR |
2345 | } |
2346 | ||
2347 | if (es_change) { | |
2348 | inform_client = true; | |
2349 | upd_neigh = true; | |
2350 | } | |
2351 | ||
2352 | /* Inform dataplane if required. */ | |
2353 | if (inform_dataplane) | |
2354 | zebra_evpn_sync_mac_dp_install(mac, false /* set_inactive */, | |
2355 | false /* force_clear_static */, | |
2356 | __func__); | |
2357 | ||
2358 | /* Inform BGP if required. */ | |
2359 | if (inform_client) | |
2360 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2361 | new_bgp_ready); | |
2362 | ||
2363 | /* Process all neighbors associated with this MAC, if required. */ | |
2364 | if (upd_neigh) | |
2365 | zebra_evpn_process_neigh_on_local_mac_change(zevpn, mac, 0, | |
2366 | es_change); | |
2367 | ||
2368 | return 0; | |
2369 | } | |
ad6ca5f4 | 2370 | |
3198b2b3 | 2371 | int zebra_evpn_del_local_mac(struct zebra_evpn *zevpn, struct zebra_mac *mac, |
00a7710c | 2372 | bool clear_static) |
ad6ca5f4 | 2373 | { |
ad6ca5f4 PR |
2374 | bool old_bgp_ready; |
2375 | bool new_bgp_ready; | |
b16e8004 | 2376 | |
46d6f5a2 | 2377 | if (IS_ZEBRA_DEBUG_VXLAN) |
ef7b8be4 DL |
2378 | zlog_debug("DEL MAC %pEA VNI %u seq %u flags 0x%x nbr count %u", |
2379 | &mac->macaddr, zevpn->vni, mac->loc_seq, mac->flags, | |
46d6f5a2 | 2380 | listcount(mac->neigh_list)); |
ad6ca5f4 PR |
2381 | |
2382 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
00a7710c | 2383 | if (!clear_static && zebra_evpn_mac_is_static(mac)) { |
ad6ca5f4 PR |
2384 | /* this is a synced entry and can only be removed when the |
2385 | * es-peers stop advertising it. | |
2386 | */ | |
8b07f173 | 2387 | zebra_evpn_mac_clear_fwd_info(mac); |
ad6ca5f4 | 2388 | |
b16e8004 DS |
2389 | if (IS_ZEBRA_DEBUG_EVPN_MH_MAC) { |
2390 | char mac_buf[MAC_BUF_SIZE]; | |
2391 | ||
ad6ca5f4 | 2392 | zlog_debug( |
ef7b8be4 DL |
2393 | "re-add sync-mac vni %u mac %pEA es %s seq %d f %s", |
2394 | zevpn->vni, &mac->macaddr, | |
ad6ca5f4 | 2395 | mac->es ? mac->es->esi_str : "-", mac->loc_seq, |
b16e8004 DS |
2396 | zebra_evpn_zebra_mac_flag_dump( |
2397 | mac, mac_buf, sizeof(mac_buf))); | |
2398 | } | |
ad6ca5f4 PR |
2399 | |
2400 | /* inform-bgp about change in local-activity if any */ | |
2401 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE)) { | |
2402 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL_INACTIVE); | |
2403 | new_bgp_ready = | |
2404 | zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2405 | zebra_evpn_mac_send_add_del_to_client( | |
2406 | mac, old_bgp_ready, new_bgp_ready); | |
2407 | } | |
2408 | ||
1a4f9efd AK |
2409 | /* re-install the inactive entry in the kernel */ |
2410 | zebra_evpn_sync_mac_dp_install(mac, true /* set_inactive */, | |
ad6ca5f4 PR |
2411 | false /* force_clear_static */, |
2412 | __func__); | |
2413 | ||
2414 | return 0; | |
2415 | } | |
2416 | ||
00a7710c AK |
2417 | /* flush the peer info */ |
2418 | zebra_evpn_mac_clear_sync_info(mac); | |
2419 | ||
ad6ca5f4 PR |
2420 | /* Update all the neigh entries associated with this mac */ |
2421 | zebra_evpn_process_neigh_on_local_mac_del(zevpn, mac); | |
2422 | ||
2423 | /* Remove MAC from BGP. */ | |
46d6f5a2 | 2424 | zebra_evpn_mac_send_del_to_client(zevpn->vni, &mac->macaddr, mac->flags, |
ad6ca5f4 PR |
2425 | false /* force */); |
2426 | ||
2427 | zebra_evpn_es_mac_deref_entry(mac); | |
2428 | ||
8b07f173 AK |
2429 | /* remove links to the destination access port */ |
2430 | zebra_evpn_mac_clear_fwd_info(mac); | |
2431 | ||
ad6ca5f4 PR |
2432 | /* |
2433 | * If there are no neigh associated with the mac delete the mac | |
2434 | * else mark it as AUTO for forward reference | |
2435 | */ | |
2436 | if (!listcount(mac->neigh_list)) { | |
2437 | zebra_evpn_mac_del(zevpn, mac); | |
2438 | } else { | |
2439 | UNSET_FLAG(mac->flags, ZEBRA_MAC_ALL_LOCAL_FLAGS); | |
2440 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
2441 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2442 | } | |
2443 | ||
2444 | return 0; | |
2445 | } | |
7bce3535 | 2446 | |
5ff58d0a | 2447 | void zebra_evpn_mac_gw_macip_add(struct interface *ifp, |
2448 | struct zebra_evpn *zevpn, | |
2449 | const struct ipaddr *ip, | |
2450 | struct zebra_mac **macp, | |
2451 | const struct ethaddr *macaddr, | |
2452 | vlanid_t vlan_id, bool def_gw) | |
7bce3535 | 2453 | { |
3198b2b3 | 2454 | struct zebra_mac *mac; |
47c58929 PG |
2455 | ns_id_t local_ns_id = NS_DEFAULT; |
2456 | struct zebra_vrf *zvrf; | |
2457 | ||
096f7609 | 2458 | zvrf = ifp->vrf->info; |
47c58929 PG |
2459 | if (zvrf && zvrf->zns) |
2460 | local_ns_id = zvrf->zns->ns_id; | |
7bce3535 | 2461 | |
b83d220a | 2462 | if (!*macp) { |
2463 | mac = zebra_evpn_mac_lookup(zevpn, macaddr); | |
2464 | if (!mac) | |
2465 | mac = zebra_evpn_mac_add(zevpn, macaddr); | |
2466 | *macp = mac; | |
2467 | } else | |
2468 | mac = *macp; | |
7bce3535 PR |
2469 | |
2470 | /* Set "local" forwarding info. */ | |
8b07f173 | 2471 | zebra_evpn_mac_clear_fwd_info(mac); |
7bce3535 PR |
2472 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); |
2473 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
e4c3ece6 AK |
2474 | if (def_gw) |
2475 | SET_FLAG(mac->flags, ZEBRA_MAC_DEF_GW); | |
5ff58d0a | 2476 | else |
2477 | SET_FLAG(mac->flags, ZEBRA_MAC_SVI); | |
7bce3535 | 2478 | mac->fwd_info.local.ifindex = ifp->ifindex; |
47c58929 | 2479 | mac->fwd_info.local.ns_id = local_ns_id; |
7bce3535 | 2480 | mac->fwd_info.local.vid = vlan_id; |
7bce3535 | 2481 | } |
243b74ed | 2482 | |
f6371c34 | 2483 | void zebra_evpn_mac_svi_del(struct interface *ifp, struct zebra_evpn *zevpn) |
243b74ed | 2484 | { |
3198b2b3 | 2485 | struct zebra_mac *mac; |
243b74ed | 2486 | struct ethaddr macaddr; |
e4c3ece6 | 2487 | bool old_bgp_ready; |
243b74ed AK |
2488 | |
2489 | if (!zebra_evpn_mh_do_adv_svi_mac()) | |
2490 | return; | |
2491 | ||
2492 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2493 | mac = zebra_evpn_mac_lookup(zevpn, &macaddr); | |
2494 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) { | |
2495 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES) | |
2496 | zlog_debug("SVI %s mac free", ifp->name); | |
2497 | ||
e4c3ece6 | 2498 | old_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); |
243b74ed | 2499 | UNSET_FLAG(mac->flags, ZEBRA_MAC_SVI); |
e4c3ece6 AK |
2500 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, |
2501 | false); | |
243b74ed AK |
2502 | zebra_evpn_deref_ip2mac(mac->zevpn, mac); |
2503 | } | |
2504 | } | |
2505 | ||
f6371c34 | 2506 | void zebra_evpn_mac_svi_add(struct interface *ifp, struct zebra_evpn *zevpn) |
243b74ed | 2507 | { |
3198b2b3 | 2508 | struct zebra_mac *mac = NULL; |
243b74ed AK |
2509 | struct ethaddr macaddr; |
2510 | struct zebra_if *zif = ifp->info; | |
e4c3ece6 AK |
2511 | bool old_bgp_ready; |
2512 | bool new_bgp_ready; | |
243b74ed | 2513 | |
e4c3ece6 AK |
2514 | if (!zebra_evpn_mh_do_adv_svi_mac() |
2515 | || !zebra_evpn_send_to_client_ok(zevpn)) | |
243b74ed AK |
2516 | return; |
2517 | ||
2518 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2519 | ||
2520 | /* dup check */ | |
2521 | mac = zebra_evpn_mac_lookup(zevpn, &macaddr); | |
2522 | if (mac && CHECK_FLAG(mac->flags, ZEBRA_MAC_SVI)) | |
2523 | return; | |
2524 | ||
2525 | /* add/update mac */ | |
2526 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES) | |
2527 | zlog_debug("SVI %s mac add", zif->ifp->name); | |
2528 | ||
e4c3ece6 AK |
2529 | old_bgp_ready = (mac && zebra_evpn_mac_is_ready_for_bgp(mac->flags)) |
2530 | ? true | |
2531 | : false; | |
2532 | ||
e4c3ece6 | 2533 | zebra_evpn_mac_gw_macip_add(ifp, zevpn, NULL, &mac, &macaddr, 0, false); |
e4c3ece6 AK |
2534 | |
2535 | new_bgp_ready = zebra_evpn_mac_is_ready_for_bgp(mac->flags); | |
2536 | zebra_evpn_mac_send_add_del_to_client(mac, old_bgp_ready, | |
2537 | new_bgp_ready); | |
243b74ed | 2538 | } |