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zebra: dup addr detect operation commands
[mirror_frr.git] / zebra / zebra_vxlan.c
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13d60d35 1/*
2 * Zebra EVPN for VxLAN code
3 * Copyright (C) 2016, 2017 Cumulus Networks, Inc.
4 *
5 * This file is part of FRR.
6 *
7 * FRR is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2, or (at your option) any
10 * later version.
11 *
12 * FRR is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with FRR; see the file COPYING. If not, write to the Free
19 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
20 * 02111-1307, USA.
21 */
22
23#include <zebra.h>
24
43e52561 25#include "hash.h"
13d60d35 26#include "if.h"
43e52561 27#include "jhash.h"
13d60d35 28#include "linklist.h"
43e52561
QY		 29#include "log.h"
30#include "memory.h"
31#include "prefix.h"
13d60d35 32#include "stream.h"
43e52561 33#include "table.h"
13d60d35 34#include "vlan.h"
35#include "vxlan.h"
68e33151
CS		 36#ifdef GNU_LINUX
37#include <linux/neighbour.h>
38#endif
13d60d35 39
89272910 40#include "zebra/zebra_router.h"
43e52561
QY		 41#include "zebra/debug.h"
42#include "zebra/interface.h"
13d60d35 43#include "zebra/rib.h"
44#include "zebra/rt.h"
43e52561
QY		 45#include "zebra/rt_netlink.h"
46#include "zebra/zebra_errors.h"
47#include "zebra/zebra_l2.h"
48#include "zebra/zebra_memory.h"
13d60d35 49#include "zebra/zebra_ns.h"
13d60d35 50#include "zebra/zebra_vrf.h"
13d60d35 51#include "zebra/zebra_vxlan.h"
43e52561
QY		 52#include "zebra/zebra_vxlan_private.h"
53#include "zebra/zserv.h"
13d60d35 54
6134fd82 55DEFINE_MTYPE_STATIC(ZEBRA, HOST_PREFIX, "host prefix");
d62a17ae 56DEFINE_MTYPE_STATIC(ZEBRA, ZVNI, "VNI hash");
b7cfce93 57DEFINE_MTYPE_STATIC(ZEBRA, ZL3VNI, "L3 VNI hash");
13d60d35 58DEFINE_MTYPE_STATIC(ZEBRA, ZVNI_VTEP, "VNI remote VTEP");
d62a17ae 59DEFINE_MTYPE_STATIC(ZEBRA, MAC, "VNI MAC");
60DEFINE_MTYPE_STATIC(ZEBRA, NEIGH, "VNI Neighbor");
13d60d35 61
62/* definitions */
63
13d60d35 64/* static function declarations */
996c9314
LB		 65static int ip_prefix_send_to_client(vrf_id_t vrf_id, struct prefix *p,
66 uint16_t cmd);
cd233079 67static void zvni_print_neigh(zebra_neigh_t *n, void *ctxt, json_object *json);
d62a17ae 68static void zvni_print_neigh_hash(struct hash_backet *backet, void *ctxt);
1374d4db 69static void zvni_print_dad_neigh_hash(struct hash_backet *backet, void *ctxt);
d62a17ae 70static void zvni_print_neigh_hash_all_vni(struct hash_backet *backet,
cd233079 71 void **args);
c0e519d3
MK		 72static void zl3vni_print_nh(zebra_neigh_t *n, struct vty *vty,
73 json_object *json);
316f4ca4
MK		 74static void zl3vni_print_rmac(zebra_mac_t *zrmac, struct vty *vty,
75 json_object *json);
24cdbd0d 76static void zvni_print_mac(zebra_mac_t *mac, void *ctxt, json_object *json);
d62a17ae 77static void zvni_print_mac_hash(struct hash_backet *backet, void *ctxt);
78static void zvni_print_mac_hash_all_vni(struct hash_backet *backet, void *ctxt);
cd233079
CS		 79static void zvni_print(zebra_vni_t *zvni, void **ctxt);
80static void zvni_print_hash(struct hash_backet *backet, void *ctxt[]);
d62a17ae 81
996c9314 82static int zvni_macip_send_msg_to_client(vni_t vni, struct ethaddr *macaddr,
d7c0a89a 83 struct ipaddr *ip, uint8_t flags,
f07e1c99 84 uint32_t seq, uint16_t cmd);
d62a17ae 85static unsigned int neigh_hash_keymake(void *p);
d62a17ae 86static void *zvni_neigh_alloc(void *p);
b6938a74
MK		 87static zebra_neigh_t *zvni_neigh_add(zebra_vni_t *zvni, struct ipaddr *ip,
88 struct ethaddr *mac);
d62a17ae 89static int zvni_neigh_del(zebra_vni_t *zvni, zebra_neigh_t *n);
d62a17ae 90static void zvni_neigh_del_from_vtep(zebra_vni_t *zvni, int uninstall,
91 struct in_addr *r_vtep_ip);
996c9314 92static void zvni_neigh_del_all(zebra_vni_t *zvni, int uninstall, int upd_client,
d7c0a89a 93 uint32_t flags);
d62a17ae 94static zebra_neigh_t *zvni_neigh_lookup(zebra_vni_t *zvni, struct ipaddr *ip);
996c9314 95static int zvni_neigh_send_add_to_client(vni_t vni, struct ipaddr *ip,
d7c0a89a 96 struct ethaddr *macaddr,
f07e1c99 97 uint8_t flags, uint32_t seq);
996c9314 98static int zvni_neigh_send_del_to_client(vni_t vni, struct ipaddr *ip,
d7c0a89a
QY		 99 struct ethaddr *macaddr,
100 uint8_t flags);
d62a17ae 101static int zvni_neigh_install(zebra_vni_t *zvni, zebra_neigh_t *n);
102static int zvni_neigh_uninstall(zebra_vni_t *zvni, zebra_neigh_t *n);
b7cfce93 103static zebra_vni_t *zvni_from_svi(struct interface *ifp,
996c9314
LB		 104 struct interface *br_if);
105static struct interface *zvni_map_to_svi(vlanid_t vid, struct interface *br_if);
d62a17ae 106
b7cfce93 107/* l3-vni next-hop neigh related APIs */
2dbad57f 108static zebra_neigh_t *zl3vni_nh_lookup(zebra_l3vni_t *zl3vni,
b7cfce93
MK		 109 struct ipaddr *ip);
110static void *zl3vni_nh_alloc(void *p);
111static zebra_neigh_t *zl3vni_nh_add(zebra_l3vni_t *zl3vni,
112 struct ipaddr *vtep_ip,
113 struct ethaddr *rmac);
114static int zl3vni_nh_del(zebra_l3vni_t *zl3vni, zebra_neigh_t *n);
115static int zl3vni_nh_install(zebra_l3vni_t *zl3vni, zebra_neigh_t *n);
2dbad57f 116static int zl3vni_nh_uninstall(zebra_l3vni_t *zl3vni, zebra_neigh_t *n);
b7cfce93
MK		 117
118/* l3-vni rmac related APIs */
119static void zl3vni_print_rmac_hash(struct hash_backet *, void *);
2dbad57f 120static zebra_mac_t *zl3vni_rmac_lookup(zebra_l3vni_t *zl3vni,
b7cfce93
MK		 121 struct ethaddr *rmac);
122static void *zl3vni_rmac_alloc(void *p);
123static zebra_mac_t *zl3vni_rmac_add(zebra_l3vni_t *zl3vni,
124 struct ethaddr *rmac);
125static int zl3vni_rmac_del(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac);
126static int zl3vni_rmac_install(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac);
996c9314 127static int zl3vni_rmac_uninstall(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac);
b7cfce93
MK		 128
129/* l3-vni related APIs*/
b7cfce93
MK		 130static zebra_l3vni_t *zl3vni_lookup(vni_t vni);
131static void *zl3vni_alloc(void *p);
132static zebra_l3vni_t *zl3vni_add(vni_t vni, vrf_id_t vrf_id);
133static int zl3vni_del(zebra_l3vni_t *zl3vni);
134static zebra_l3vni_t *zl3vni_from_vrf(vrf_id_t);
b7cfce93
MK		 135static struct interface *zl3vni_map_to_svi_if(zebra_l3vni_t *zl3vni);
136static struct interface *zl3vni_map_to_vxlan_if(zebra_l3vni_t *zl3vni);
b7cfce93
MK		 137static void zebra_vxlan_process_l3vni_oper_up(zebra_l3vni_t *zl3vni);
138static void zebra_vxlan_process_l3vni_oper_down(zebra_l3vni_t *zl3vni);
139
d62a17ae 140static unsigned int mac_hash_keymake(void *p);
74df8d6d 141static bool mac_cmp(const void *p1, const void *p2);
d62a17ae 142static void *zvni_mac_alloc(void *p);
143static zebra_mac_t *zvni_mac_add(zebra_vni_t *zvni, struct ethaddr *macaddr);
144static int zvni_mac_del(zebra_vni_t *zvni, zebra_mac_t *mac);
d62a17ae 145static void zvni_mac_del_from_vtep(zebra_vni_t *zvni, int uninstall,
146 struct in_addr *r_vtep_ip);
996c9314 147static void zvni_mac_del_all(zebra_vni_t *zvni, int uninstall, int upd_client,
d7c0a89a 148 uint32_t flags);
d62a17ae 149static zebra_mac_t *zvni_mac_lookup(zebra_vni_t *zvni, struct ethaddr *macaddr);
996c9314 150static int zvni_mac_send_add_to_client(vni_t vni, struct ethaddr *macaddr,
f07e1c99 151 uint8_t flags, uint32_t seq);
e98e4b88 152static int zvni_mac_send_del_to_client(vni_t vni, struct ethaddr *macaddr);
d62a17ae 153static zebra_vni_t *zvni_map_vlan(struct interface *ifp,
154 struct interface *br_if, vlanid_t vid);
155static int zvni_mac_install(zebra_vni_t *zvni, zebra_mac_t *mac);
d63c1b18 156static int zvni_mac_uninstall(zebra_vni_t *zvni, zebra_mac_t *mac);
d62a17ae 157static void zvni_install_mac_hash(struct hash_backet *backet, void *ctxt);
158
159static unsigned int vni_hash_keymake(void *p);
d62a17ae 160static void *zvni_alloc(void *p);
2853fed6 161static zebra_vni_t *zvni_lookup(vni_t vni);
162static zebra_vni_t *zvni_add(vni_t vni);
163static int zvni_del(zebra_vni_t *zvni);
164static int zvni_send_add_to_client(zebra_vni_t *zvni);
165static int zvni_send_del_to_client(vni_t vni);
166static void zvni_build_hash_table();
d62a17ae 167static int zvni_vtep_match(struct in_addr *vtep_ip, zebra_vtep_t *zvtep);
168static zebra_vtep_t *zvni_vtep_find(zebra_vni_t *zvni, struct in_addr *vtep_ip);
169static zebra_vtep_t *zvni_vtep_add(zebra_vni_t *zvni, struct in_addr *vtep_ip);
170static int zvni_vtep_del(zebra_vni_t *zvni, zebra_vtep_t *zvtep);
171static int zvni_vtep_del_all(zebra_vni_t *zvni, int uninstall);
172static int zvni_vtep_install(zebra_vni_t *zvni, struct in_addr *vtep_ip);
173static int zvni_vtep_uninstall(zebra_vni_t *zvni, struct in_addr *vtep_ip);
1a98c087
MK		 174static int zvni_del_macip_for_intf(struct interface *ifp, zebra_vni_t *zvni);
175static int zvni_add_macip_for_intf(struct interface *ifp, zebra_vni_t *zvni);
176static int zvni_gw_macip_add(struct interface *ifp, zebra_vni_t *zvni,
177 struct ethaddr *macaddr, struct ipaddr *ip);
178static int zvni_gw_macip_del(struct interface *ifp, zebra_vni_t *zvni,
179 struct ipaddr *ip);
180struct interface *zebra_get_vrr_intf_for_svi(struct interface *ifp);
2853fed6 181static int advertise_gw_macip_enabled(zebra_vni_t *zvni);
e22a946a
CS		 182static int zebra_vxlan_ip_inherit_dad_from_mac(struct zebra_vrf *zvrf,
183 zebra_mac_t *old_zmac,
184 zebra_mac_t *new_zmac,
185 zebra_neigh_t *nbr);
fe697c6b 186static int remote_neigh_count(zebra_mac_t *zmac);
187static void zvni_deref_ip2mac(zebra_vni_t *zvni, zebra_mac_t *mac);
c80a972c
CS		 188static int zebra_vxlan_dad_mac_auto_recovery_exp(struct thread *t);
189static int zebra_vxlan_dad_ip_auto_recovery_exp(struct thread *t);
13d60d35 190
191/* Private functions */
5e1b0650 192static int host_rb_entry_compare(const struct host_rb_entry *hle1,
85442b09 193 const struct host_rb_entry *hle2)
5e1b0650
DS		 194{
195 if (hle1->p.family < hle2->p.family)
196 return -1;
197
198 if (hle1->p.family > hle2->p.family)
199 return 1;
200
201 if (hle1->p.prefixlen < hle2->p.prefixlen)
202 return -1;
203
204 if (hle1->p.prefixlen > hle2->p.prefixlen)
205 return 1;
206
207 if (hle1->p.family == AF_INET) {
208 if (hle1->p.u.prefix4.s_addr < hle2->p.u.prefix4.s_addr)
209 return -1;
210
211 if (hle1->p.u.prefix4.s_addr > hle2->p.u.prefix4.s_addr)
212 return 1;
213
214 return 0;
2acc2310
DS		 215 } else if (hle1->p.family == AF_INET6) {
216 return memcmp(&hle1->p.u.prefix6, &hle2->p.u.prefix6,
217 IPV6_MAX_BYTELEN);
5e1b0650 218 } else {
9df414fe
QY		 219 zlog_debug("%s: Unexpected family type: %d",
220 __PRETTY_FUNCTION__, hle1->p.family);
5e1b0650
DS		 221 return 0;
222 }
223}
85442b09 224RB_GENERATE(host_rb_tree_entry, host_rb_entry, hl_entry, host_rb_entry_compare);
5e1b0650 225
85442b09 226static uint32_t rb_host_count(struct host_rb_tree_entry *hrbe)
5e1b0650
DS		 227{
228 struct host_rb_entry *hle;
229 uint32_t count = 0;
230
85442b09 231 RB_FOREACH (hle, host_rb_tree_entry, hrbe)
5e1b0650
DS		 232 count++;
233
234 return count;
235}
13d60d35 236
790f8dc5 237/*
238 * Return number of valid MACs in a VNI's MAC hash table - all
239 * remote MACs and non-internal (auto) local MACs count.
240 */
d7c0a89a 241static uint32_t num_valid_macs(zebra_vni_t *zvni)
790f8dc5 242{
243 unsigned int i;
d7c0a89a 244 uint32_t num_macs = 0;
790f8dc5 245 struct hash *hash;
246 struct hash_backet *hb;
247 zebra_mac_t *mac;
248
249 hash = zvni->mac_table;
250 if (!hash)
251 return num_macs;
252 for (i = 0; i < hash->size; i++) {
253 for (hb = hash->index[i]; hb; hb = hb->next) {
254 mac = (zebra_mac_t *)hb->data;
255 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)
63ce2ee7 256 || CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)
790f8dc5 257 || !CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO))
258 num_macs++;
259 }
260 }
261
262 return num_macs;
263}
264
1374d4db
CS		 265static uint32_t num_dup_detected_macs(zebra_vni_t *zvni)
266{
267 unsigned int i;
268 uint32_t num_macs = 0;
269 struct hash *hash;
270 struct hash_backet *hb;
271 zebra_mac_t *mac;
272
273 hash = zvni->mac_table;
274 if (!hash)
275 return num_macs;
276 for (i = 0; i < hash->size; i++) {
277 for (hb = hash->index[i]; hb; hb = hb->next) {
278 mac = (zebra_mac_t *)hb->data;
279 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE))
280 num_macs++;
281 }
282 }
283
284 return num_macs;
285}
286
287static uint32_t num_dup_detected_neighs(zebra_vni_t *zvni)
288{
289 unsigned int i;
290 uint32_t num_neighs = 0;
291 struct hash *hash;
292 struct hash_backet *hb;
293 zebra_neigh_t *nbr;
294
295 hash = zvni->neigh_table;
296 if (!hash)
297 return num_neighs;
298 for (i = 0; i < hash->size; i++) {
299 for (hb = hash->index[i]; hb; hb = hb->next) {
300 nbr = (zebra_neigh_t *)hb->data;
301 if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE))
302 num_neighs++;
303 }
304 }
305
306 return num_neighs;
307}
308
2853fed6 309static int advertise_gw_macip_enabled(zebra_vni_t *zvni)
1a98c087 310{
2853fed6 311 struct zebra_vrf *zvrf;
312
313 zvrf = vrf_info_lookup(VRF_DEFAULT);
1a98c087
MK		 314 if (zvrf && zvrf->advertise_gw_macip)
315 return 1;
316
317 if (zvni && zvni->advertise_gw_macip)
318 return 1;
319
320 return 0;
321}
322
e22a946a
CS		 323/* As part Duplicate Address Detection (DAD) for IP mobility
324 * MAC binding changes, ensure to inheirt duplicate flag
325 */
326static int zebra_vxlan_ip_inherit_dad_from_mac(struct zebra_vrf *zvrf,
327 zebra_mac_t *old_zmac,
328 zebra_mac_t *new_zmac,
329 zebra_neigh_t *nbr)
330{
331 bool is_old_mac_dup = false;
332 bool is_new_mac_dup = false;
333
334 if (!zvrf->dup_addr_detect)
335 return 0;
336 /* Check old or new MAC is detected as duplicate
337 * mark this neigh as duplicate
338 */
339 if (old_zmac)
340 is_old_mac_dup = CHECK_FLAG(old_zmac->flags,
341 ZEBRA_MAC_DUPLICATE);
342 if (new_zmac)
343 is_new_mac_dup = CHECK_FLAG(new_zmac->flags,
344 ZEBRA_MAC_DUPLICATE);
345 /* Old and/or new MAC can be in duplicate state,
346 * based on that IP/Neigh Inherits the flag.
347 * If New MAC is marked duplicate, inherit to the IP.
348 * If old MAC is duplicate but new MAC is not, clear
349 * duplicate flag for IP and reset detection params
350 * and let IP DAD retrigger.
351 */
352 if (is_new_mac_dup && !CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) {
353 SET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE);
354 /* Capture Duplicate detection time */
355 nbr->dad_dup_detect_time = monotime(NULL);
356 return 1;
357 } else if (is_old_mac_dup && !is_new_mac_dup) {
358 UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE);
359 nbr->dad_count = 0;
360 nbr->detect_start_time.tv_sec = 0;
361 nbr->detect_start_time.tv_usec = 0;
362 }
363 return 0;
364}
365
cec2e17d 366/*
367 * Helper function to determine maximum width of neighbor IP address for
368 * display - just because we're dealing with IPv6 addresses that can
369 * widely vary.
370 */
d62a17ae 371static void zvni_find_neigh_addr_width(struct hash_backet *backet, void *ctxt)
cec2e17d 372{
d62a17ae 373 zebra_neigh_t *n;
374 char buf[INET6_ADDRSTRLEN];
375 struct neigh_walk_ctx *wctx = ctxt;
376 int width;
cec2e17d 377
d62a17ae 378 n = (zebra_neigh_t *)backet->data;
cec2e17d 379
1445b43c
A		 380 ipaddr2str(&n->ip, buf, sizeof(buf));
381 width = strlen(buf);
d62a17ae 382 if (width > wctx->addr_width)
383 wctx->addr_width = width;
68e33151 384
cec2e17d 385}
386
387/*
388 * Print a specific neighbor entry.
389 */
cd233079 390static void zvni_print_neigh(zebra_neigh_t *n, void *ctxt, json_object *json)
cec2e17d 391{
d62a17ae 392 struct vty *vty;
393 char buf1[ETHER_ADDR_STRLEN];
394 char buf2[INET6_ADDRSTRLEN];
1a8c5c38 395 const char *type_str;
396 const char *state_str;
397 bool flags_present = false;
87454e6b
CS		 398 struct zebra_vrf *zvrf;
399 struct timeval detect_start_time = {0, 0};
cec2e17d 400
87454e6b 401 zvrf = zebra_vrf_lookup_by_id(n->zvni->vrf_id);
cd233079
CS		 402 ipaddr2str(&n->ip, buf2, sizeof(buf2));
403 prefix_mac2str(&n->emac, buf1, sizeof(buf1));
1a8c5c38 404 type_str = CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL) ?
405 "local" : "remote";
406 state_str = IS_ZEBRA_NEIGH_ACTIVE(n) ? "active" : "inactive";
cd233079
CS		 407 vty = (struct vty *)ctxt;
408 if (json == NULL) {
409 vty_out(vty, "IP: %s\n",
410 ipaddr2str(&n->ip, buf2, sizeof(buf2)));
1a8c5c38 411 vty_out(vty, " Type: %s\n", type_str);
412 vty_out(vty, " State: %s\n", state_str);
413 vty_out(vty, " MAC: %s\n",
cd233079
CS		 414 prefix_mac2str(&n->emac, buf1, sizeof(buf1)));
415 } else {
416 json_object_string_add(json, "ip", buf2);
1a8c5c38 417 json_object_string_add(json, "type", type_str);
418 json_object_string_add(json, "state", state_str);
cd233079
CS		 419 json_object_string_add(json, "mac", buf1);
420 }
421 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) {
b6938a74 422 if (json == NULL) {
1a8c5c38 423 vty_out(vty, " Remote VTEP: %s\n",
cd233079 424 inet_ntoa(n->r_vtep_ip));
b6938a74 425 } else
cd233079
CS		 426 json_object_string_add(json, "remoteVtep",
427 inet_ntoa(n->r_vtep_ip));
428 }
ead40654 429 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DEF_GW)) {
1a8c5c38 430 if (!json) {
431 vty_out(vty, " Flags: Default-gateway");
432 flags_present = true;
433 } else
ead40654
MK		 434 json_object_boolean_true_add(json, "defaultGateway");
435 }
68e33151 436 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG)) {
1a8c5c38 437 if (!json) {
438 vty_out(vty,
439 flags_present ? " ,Router" : " Flags: Router");
440 flags_present = true;
441 }
68e33151 442 }
f07e1c99 443 if (json == NULL) {
1a8c5c38 444 if (flags_present)
445 vty_out(vty, "\n");
446 vty_out(vty, " Local Seq: %u Remote Seq: %u\n",
f07e1c99 447 n->loc_seq, n->rem_seq);
87454e6b
CS		 448
449 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DUPLICATE)) {
450 vty_out(vty, " Duplicate, detected at %s",
451 time_to_string(n->dad_dup_detect_time));
452 } else if (n->dad_count) {
453 monotime_since(&n->detect_start_time,
454 &detect_start_time);
455 if (detect_start_time.tv_sec <= zvrf->dad_time) {
456 char *buf = time_to_string(n->
457 detect_start_time.tv_sec);
458 char tmp_buf[30];
459
460 memset(tmp_buf, 0, 30);
461 strncpy(tmp_buf, buf, strlen(buf) - 1);
462 vty_out(vty,
463 " Duplicate detection started at %s, detection count %u\n",
464 tmp_buf, n->dad_count);
465 }
466 }
1a8c5c38 467 } else {
468 json_object_int_add(json, "localSequence", n->loc_seq);
469 json_object_int_add(json, "remoteSequence", n->rem_seq);
87454e6b
CS		 470 json_object_int_add(json, "detectionCount",
471 n->dad_count);
472 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DUPLICATE))
473 json_object_boolean_true_add(json, "isDuplicate");
474 else
475 json_object_boolean_false_add(json, "isDuplicate");
476
477
68e33151 478 }
cec2e17d 479}
480
481/*
482 * Print neighbor hash entry - called for display of all neighbors.
483 */
d62a17ae 484static void zvni_print_neigh_hash(struct hash_backet *backet, void *ctxt)
485{
486 struct vty *vty;
cd233079 487 json_object *json_vni = NULL, *json_row = NULL;
d62a17ae 488 zebra_neigh_t *n;
489 char buf1[ETHER_ADDR_STRLEN];
490 char buf2[INET6_ADDRSTRLEN];
491 struct neigh_walk_ctx *wctx = ctxt;
1a8c5c38 492 const char *state_str;
d62a17ae 493
494 vty = wctx->vty;
cd233079 495 json_vni = wctx->json;
d62a17ae 496 n = (zebra_neigh_t *)backet->data;
d62a17ae 497
cd233079
CS		 498 if (json_vni)
499 json_row = json_object_new_object();
500
d62a17ae 501 prefix_mac2str(&n->emac, buf1, sizeof(buf1));
502 ipaddr2str(&n->ip, buf2, sizeof(buf2));
1a8c5c38 503 state_str = IS_ZEBRA_NEIGH_ACTIVE(n) ? "active" : "inactive";
504 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) {
505 if (wctx->flags & SHOW_REMOTE_NEIGH_FROM_VTEP)
506 return;
507
cd233079 508 if (json_vni == NULL) {
1a8c5c38 509 vty_out(vty, "%*s %-6s %-8s %-17s\n",
510 -wctx->addr_width, buf2, "local",
511 state_str, buf1);
cd233079
CS		 512 } else {
513 json_object_string_add(json_row, "type", "local");
1a8c5c38 514 json_object_string_add(json_row, "state", state_str);
cd233079 515 json_object_string_add(json_row, "mac", buf1);
1a8c5c38 516 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DEF_GW))
517 json_object_boolean_true_add(
518 json_row, "defaultGateway");
519 json_object_int_add(json_row, "localSequence",
520 n->loc_seq);
521 json_object_int_add(json_row, "remoteSequence",
522 n->rem_seq);
87454e6b
CS		 523 json_object_int_add(json_row, "detectionCount",
524 n->dad_count);
525 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DUPLICATE))
526 json_object_boolean_true_add(json_row,
527 "isDuplicate");
528 else
529 json_object_boolean_false_add(json_row,
530 "isDuplicate");
cd233079 531 }
d62a17ae 532 wctx->count++;
1a8c5c38 533 } else if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) {
534 if ((wctx->flags & SHOW_REMOTE_NEIGH_FROM_VTEP) &&
535 !IPV4_ADDR_SAME(&n->r_vtep_ip, &wctx->r_vtep_ip))
536 return;
537
538 if (json_vni == NULL) {
539 if ((wctx->flags & SHOW_REMOTE_NEIGH_FROM_VTEP) &&
540 (wctx->count == 0))
541 vty_out(vty,
542 "%*s %-6s %-8s %-17s %-21s\n",
543 -wctx->addr_width, "Neighbor", "Type",
544 "State", "MAC", "Remote VTEP");
545 vty_out(vty, "%*s %-6s %-8s %-17s %-21s\n",
546 -wctx->addr_width, buf2, "remote", state_str,
547 buf1, inet_ntoa(n->r_vtep_ip));
cd233079 548 } else {
1a8c5c38 549 json_object_string_add(json_row, "type", "remote");
550 json_object_string_add(json_row, "state", state_str);
551 json_object_string_add(json_row, "mac", buf1);
552 json_object_string_add(json_row, "remoteVtep",
553 inet_ntoa(n->r_vtep_ip));
554 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DEF_GW))
555 json_object_boolean_true_add(json_row,
556 "defaultGateway");
557 json_object_int_add(json_row, "localSequence",
558 n->loc_seq);
559 json_object_int_add(json_row, "remoteSequence",
560 n->rem_seq);
87454e6b
CS		 561 json_object_int_add(json_row, "detectionCount",
562 n->dad_count);
563 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DUPLICATE))
564 json_object_boolean_true_add(json_row,
565 "isDuplicate");
566 else
567 json_object_boolean_false_add(json_row,
568 "isDuplicate");
d62a17ae 569 }
1a8c5c38 570 wctx->count++;
d62a17ae 571 }
cd233079
CS		 572
573 if (json_vni)
574 json_object_object_add(json_vni, buf2, json_row);
cec2e17d 575}
576
577/*
578 * Print neighbors for all VNI.
579 */
d62a17ae 580static void zvni_print_neigh_hash_all_vni(struct hash_backet *backet,
cd233079 581 void **args)
cec2e17d 582{
d62a17ae 583 struct vty *vty;
cd233079 584 json_object *json = NULL, *json_vni = NULL;
d62a17ae 585 zebra_vni_t *zvni;
d7c0a89a 586 uint32_t num_neigh;
d62a17ae 587 struct neigh_walk_ctx wctx;
cd233079 588 char vni_str[VNI_STR_LEN];
1374d4db 589 uint32_t print_dup;
cd233079
CS		 590
591 vty = (struct vty *)args[0];
592 json = (json_object *)args[1];
1374d4db 593 print_dup = (uint32_t)(uintptr_t)args[2];
cec2e17d 594
d62a17ae 595 zvni = (zebra_vni_t *)backet->data;
9ea660be 596
d62a17ae 597 num_neigh = hashcount(zvni->neigh_table);
1374d4db
CS		 598
599 if (print_dup)
600 num_neigh = num_dup_detected_neighs(zvni);
601
68e33151 602 if (json == NULL) {
cd233079
CS		 603 vty_out(vty,
604 "\nVNI %u #ARP (IPv4 and IPv6, local and remote) %u\n\n",
605 zvni->vni, num_neigh);
68e33151 606 } else {
cd233079
CS		 607 json_vni = json_object_new_object();
608 json_object_int_add(json_vni, "numArpNd", num_neigh);
609 snprintf(vni_str, VNI_STR_LEN, "%u", zvni->vni);
610 }
1374d4db 611
cd233079
CS		 612 if (!num_neigh) {
613 if (json)
614 json_object_object_add(json, vni_str, json_vni);
d62a17ae 615 return;
cd233079 616 }
cec2e17d 617
d62a17ae 618 /* Since we have IPv6 addresses to deal with which can vary widely in
619 * size, we try to be a bit more elegant in display by first computing
620 * the maximum width.
621 */
622 memset(&wctx, 0, sizeof(struct neigh_walk_ctx));
623 wctx.zvni = zvni;
624 wctx.vty = vty;
625 wctx.addr_width = 15;
cd233079 626 wctx.json = json_vni;
d62a17ae 627 hash_iterate(zvni->neigh_table, zvni_find_neigh_addr_width, &wctx);
cec2e17d 628
68e33151 629 if (json == NULL) {
1a8c5c38 630 vty_out(vty, "%*s %-6s %-8s %-17s %-21s\n",
631 -wctx.addr_width, "IP", "Type",
632 "State", "MAC", "Remote VTEP");
68e33151 633 }
1374d4db
CS		 634 if (print_dup)
635 hash_iterate(zvni->neigh_table, zvni_print_dad_neigh_hash,
636 &wctx);
637 else
638 hash_iterate(zvni->neigh_table, zvni_print_neigh_hash, &wctx);
cd233079
CS		 639
640 if (json)
641 json_object_object_add(json, vni_str, json_vni);
cec2e17d 642}
643
1374d4db
CS		 644static void zvni_print_dad_neigh_hash(struct hash_backet *backet, void *ctxt)
645{
646 zebra_neigh_t *nbr;
647
648 nbr = (zebra_neigh_t *)backet->data;
649 if (!nbr)
650 return;
651
652 if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE))
653 zvni_print_neigh_hash(backet, ctxt);
654}
655
9aa741ea 656/* print a specific next hop for an l3vni */
996c9314 657static void zl3vni_print_nh(zebra_neigh_t *n, struct vty *vty,
c0e519d3 658 json_object *json)
9aa741ea
MK		 659{
660 char buf1[ETHER_ADDR_STRLEN];
661 char buf2[INET6_ADDRSTRLEN];
c0e519d3 662 json_object *json_hosts = NULL;
f2a503f0 663 struct host_rb_entry *hle;
9aa741ea 664
c0e519d3
MK		 665 if (!json) {
666 vty_out(vty, "Ip: %s\n",
667 ipaddr2str(&n->ip, buf2, sizeof(buf2)));
668 vty_out(vty, " RMAC: %s\n",
996c9314 669 prefix_mac2str(&n->emac, buf1, sizeof(buf1)));
f2a503f0
DS		 670 vty_out(vty, " Refcount: %d\n",
671 rb_host_count(&n->host_rb));
4cce389e 672 vty_out(vty, " Prefixes:\n");
85442b09 673 RB_FOREACH (hle, host_rb_tree_entry, &n->host_rb)
c0e519d3 674 vty_out(vty, " %s\n",
f2a503f0 675 prefix2str(&hle->p, buf2, sizeof(buf2)));
c0e519d3
MK		 676 } else {
677 json_hosts = json_object_new_array();
996c9314
LB		 678 json_object_string_add(
679 json, "ip", ipaddr2str(&(n->ip), buf2, sizeof(buf2)));
680 json_object_string_add(
681 json, "routerMac",
682 prefix_mac2str(&n->emac, buf2, sizeof(buf2)));
f2a503f0
DS		 683 json_object_int_add(json, "refCount",
684 rb_host_count(&n->host_rb));
85442b09 685 RB_FOREACH (hle, host_rb_tree_entry, &n->host_rb)
c0e519d3 686 json_object_array_add(json_hosts,
996c9314 687 json_object_new_string(prefix2str(
f2a503f0 688 &hle->p, buf2, sizeof(buf2))));
4cce389e 689 json_object_object_add(json, "prefixList", json_hosts);
c0e519d3 690 }
9aa741ea
MK		 691}
692
693/* Print a specific RMAC entry */
996c9314 694static void zl3vni_print_rmac(zebra_mac_t *zrmac, struct vty *vty,
316f4ca4 695 json_object *json)
9aa741ea
MK		 696{
697 char buf1[ETHER_ADDR_STRLEN];
698 char buf2[PREFIX_STRLEN];
316f4ca4 699 json_object *json_hosts = NULL;
5e1b0650 700 struct host_rb_entry *hle;
9aa741ea 701
316f4ca4
MK		 702 if (!json) {
703 vty_out(vty, "MAC: %s\n",
704 prefix_mac2str(&zrmac->macaddr, buf1, sizeof(buf1)));
705 vty_out(vty, " Remote VTEP: %s\n",
706 inet_ntoa(zrmac->fwd_info.r_vtep_ip));
41db76c2 707 vty_out(vty, " Refcount: %d\n", rb_host_count(&zrmac->host_rb));
4cce389e 708 vty_out(vty, " Prefixes:\n");
85442b09 709 RB_FOREACH (hle, host_rb_tree_entry, &zrmac->host_rb)
316f4ca4 710 vty_out(vty, " %s\n",
5e1b0650 711 prefix2str(&hle->p, buf2, sizeof(buf2)));
316f4ca4
MK		 712 } else {
713 json_hosts = json_object_new_array();
996c9314
LB		 714 json_object_string_add(
715 json, "routerMac",
716 prefix_mac2str(&zrmac->macaddr, buf1, sizeof(buf1)));
4cce389e 717 json_object_string_add(json, "vtepIp",
316f4ca4 718 inet_ntoa(zrmac->fwd_info.r_vtep_ip));
41db76c2
DS		 719 json_object_int_add(json, "refCount",
720 rb_host_count(&zrmac->host_rb));
1a8c5c38 721 json_object_int_add(json, "localSequence", zrmac->loc_seq);
722 json_object_int_add(json, "remoteSequence", zrmac->rem_seq);
85442b09 723 RB_FOREACH (hle, host_rb_tree_entry, &zrmac->host_rb)
5e1b0650
DS		 724 json_object_array_add(
725 json_hosts,
726 json_object_new_string(prefix2str(
727 &hle->p, buf2, sizeof(buf2))));
4cce389e 728 json_object_object_add(json, "prefixList", json_hosts);
316f4ca4 729 }
9aa741ea
MK		 730}
731
cec2e17d 732/*
733 * Print a specific MAC entry.
734 */
24cdbd0d 735static void zvni_print_mac(zebra_mac_t *mac, void *ctxt, json_object *json)
d62a17ae 736{
737 struct vty *vty;
b6938a74
MK		 738 zebra_neigh_t *n = NULL;
739 struct listnode *node = NULL;
d62a17ae 740 char buf1[20];
b6938a74 741 char buf2[INET6_ADDRSTRLEN];
87454e6b
CS		 742 struct zebra_vrf *zvrf;
743 struct timeval detect_start_time = {0, 0};
744
745 zvrf = zebra_vrf_lookup_by_id(mac->zvni->vrf_id);
d62a17ae 746
747 vty = (struct vty *)ctxt;
24cdbd0d 748 prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1));
d62a17ae 749
24cdbd0d
DS		 750 if (json) {
751 json_object *json_mac = json_object_new_object();
752
753 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) {
754 struct zebra_ns *zns;
755 struct interface *ifp;
756 ifindex_t ifindex;
757
758 ifindex = mac->fwd_info.local.ifindex;
759 zns = zebra_ns_lookup(NS_DEFAULT);
760 ifp = if_lookup_by_index_per_ns(zns, ifindex);
761 if (!ifp)
762 return;
763 json_object_string_add(json_mac, "type", "local");
764 json_object_string_add(json_mac, "intf", ifp->name);
765 json_object_int_add(json_mac, "ifindex", ifindex);
766 if (mac->fwd_info.local.vid)
767 json_object_int_add(json_mac, "vlan",
768 mac->fwd_info.local.vid);
769 } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) {
770 json_object_string_add(json_mac, "type", "remote");
771 json_object_string_add(
772 json_mac, "remoteVtep",
773 inet_ntoa(mac->fwd_info.r_vtep_ip));
774 } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO))
29611019 775 json_object_string_add(json_mac, "type", "auto");
b6938a74 776
24cdbd0d
DS		 777 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY))
778 json_object_boolean_true_add(json_mac, "stickyMac");
ead40654 779
24cdbd0d
DS		 780 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW))
781 json_object_boolean_true_add(json_mac,
782 "defaultGateway");
ead40654 783
24cdbd0d
DS		 784 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW))
785 json_object_boolean_true_add(json_mac,
786 "remoteGatewayMac");
51f4dab4 787
24cdbd0d
DS		 788 json_object_int_add(json_mac, "localSequence", mac->loc_seq);
789 json_object_int_add(json_mac, "remoteSequence", mac->rem_seq);
f07e1c99 790
87454e6b
CS		 791 json_object_int_add(json_mac, "detectionCount", mac->dad_count);
792 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE))
793 json_object_boolean_true_add(json_mac, "isDuplicate");
794 else
795 json_object_boolean_false_add(json_mac, "isDuplicate");
796
24cdbd0d
DS		 797 /* print all the associated neigh */
798 if (!listcount(mac->neigh_list))
799 json_object_string_add(json_mac, "neighbors", "none");
800 else {
801 json_object *json_active_nbrs = json_object_new_array();
802 json_object *json_inactive_nbrs =
803 json_object_new_array();
804 json_object *json_nbrs = json_object_new_object();
805
806 for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) {
807 if (IS_ZEBRA_NEIGH_ACTIVE(n))
808 json_object_array_add(
809 json_active_nbrs,
810 json_object_new_string(
811 ipaddr2str(
812 &n->ip, buf2,
813 sizeof(buf2))));
814 else
815 json_object_array_add(
816 json_inactive_nbrs,
817 json_object_new_string(
818 ipaddr2str(
819 &n->ip, buf2,
820 sizeof(buf2))));
821 }
822
823 json_object_object_add(json_nbrs, "active",
824 json_active_nbrs);
825 json_object_object_add(json_nbrs, "inactive",
826 json_inactive_nbrs);
827 json_object_object_add(json_mac, "neighbors",
828 json_nbrs);
b6938a74 829 }
b6938a74 830
24cdbd0d
DS		 831 json_object_object_add(json, buf1, json_mac);
832 vty_out(vty, "%s\n",
833 json_object_to_json_string_ext(
834 json, JSON_C_TO_STRING_PRETTY));
835 json_object_free(json);
836 } else {
837 vty_out(vty, "MAC: %s\n", buf1);
838
839 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) {
840 struct zebra_ns *zns;
841 struct interface *ifp;
842 ifindex_t ifindex;
843
844 ifindex = mac->fwd_info.local.ifindex;
845 zns = zebra_ns_lookup(NS_DEFAULT);
846 ifp = if_lookup_by_index_per_ns(zns, ifindex);
847 if (!ifp)
848 return;
849 vty_out(vty, " Intf: %s(%u)", ifp->name, ifindex);
850 if (mac->fwd_info.local.vid)
851 vty_out(vty, " VLAN: %u",
852 mac->fwd_info.local.vid);
853 } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) {
854 vty_out(vty, " Remote VTEP: %s",
855 inet_ntoa(mac->fwd_info.r_vtep_ip));
856 } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) {
857 vty_out(vty, " Auto Mac ");
858 }
859
860 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY))
861 vty_out(vty, " Sticky Mac ");
862
863 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW))
864 vty_out(vty, " Default-gateway Mac ");
865
866 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW))
867 vty_out(vty, " Remote-gateway Mac ");
868
869 vty_out(vty, "\n");
870 vty_out(vty, " Local Seq: %u Remote Seq: %u", mac->loc_seq,
871 mac->rem_seq);
872 vty_out(vty, "\n");
873
87454e6b
CS		 874 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) {
875 vty_out(vty, " Duplicate, detected at %s",
876 time_to_string(mac->dad_dup_detect_time));
877 } else if (mac->dad_count) {
878 monotime_since(&mac->detect_start_time,
879 &detect_start_time);
880 if (detect_start_time.tv_sec <= zvrf->dad_time) {
881 char *buf = time_to_string(mac->
882 detect_start_time.tv_sec);
883 char tmp_buf[30];
884
885 memset(tmp_buf, 0, 30);
886 strncpy(tmp_buf, buf, strlen(buf) - 1);
887 vty_out(vty,
888 " Duplicate detection started at %s, detection count %u\n",
889 tmp_buf, mac->dad_count);
890 }
891 }
892
24cdbd0d
DS		 893 /* print all the associated neigh */
894 vty_out(vty, " Neighbors:\n");
895 if (!listcount(mac->neigh_list))
896 vty_out(vty, " No Neighbors\n");
897 else {
898 for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) {
899 vty_out(vty, " %s %s\n",
900 ipaddr2str(&n->ip, buf2, sizeof(buf2)),
901 (IS_ZEBRA_NEIGH_ACTIVE(n)
902 ? "Active"
903 : "Inactive"));
904 }
905 }
906
907 vty_out(vty, "\n");
908 }
cec2e17d 909}
910
911/*
912 * Print MAC hash entry - called for display of all MACs.
913 */
d62a17ae 914static void zvni_print_mac_hash(struct hash_backet *backet, void *ctxt)
915{
916 struct vty *vty;
cd233079 917 json_object *json_mac_hdr = NULL, *json_mac = NULL;
d62a17ae 918 zebra_mac_t *mac;
919 char buf1[20];
920 struct mac_walk_ctx *wctx = ctxt;
921
922 vty = wctx->vty;
cd233079 923 json_mac_hdr = wctx->json;
d62a17ae 924 mac = (zebra_mac_t *)backet->data;
d62a17ae 925
926 prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1));
cd233079
CS		 927
928 if (json_mac_hdr)
929 json_mac = json_object_new_object();
930
1a8c5c38 931 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) {
d62a17ae 932 struct zebra_ns *zns;
933 ifindex_t ifindex;
934 struct interface *ifp;
935 vlanid_t vid;
936
1a8c5c38 937 if (wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP)
938 return;
939
d62a17ae 940 zns = zebra_ns_lookup(NS_DEFAULT);
941 ifindex = mac->fwd_info.local.ifindex;
942 ifp = if_lookup_by_index_per_ns(zns, ifindex);
943 if (!ifp) // unexpected
944 return;
945 vid = mac->fwd_info.local.vid;
cd233079
CS		 946 if (json_mac_hdr == NULL)
947 vty_out(vty, "%-17s %-6s %-21s", buf1, "local",
948 ifp->name);
949 else {
950 json_object_string_add(json_mac, "type", "local");
951 json_object_string_add(json_mac, "intf", ifp->name);
952 }
953 if (vid) {
954 if (json_mac_hdr == NULL)
955 vty_out(vty, " %-5u", vid);
956 else
957 json_object_int_add(json_mac, "vlan", vid);
958 }
1a8c5c38 959 if (json_mac_hdr == NULL) {
cd233079 960 vty_out(vty, "\n");
1a8c5c38 961 } else {
962 json_object_int_add(json_mac, "localSequence",
963 mac->loc_seq);
964 json_object_int_add(json_mac, "remoteSequence",
965 mac->rem_seq);
87454e6b
CS		 966 json_object_int_add(json_mac, "detectionCount",
967 mac->dad_count);
968 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE))
969 json_object_boolean_true_add(json_mac,
970 "isDuplicate");
971 else
972 json_object_boolean_false_add(json_mac,
973 "isDuplicate");
cd233079 974 json_object_object_add(json_mac_hdr, buf1, json_mac);
1a8c5c38 975 }
976
d62a17ae 977 wctx->count++;
1a8c5c38 978
b6938a74 979 } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) {
1a8c5c38 980
981 if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) &&
982 !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip,
983 &wctx->r_vtep_ip))
984 return;
985
986 if (json_mac_hdr == NULL) {
987 if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) &&
988 (wctx->count == 0)) {
989 vty_out(vty, "\nVNI %u\n\n", wctx->zvni->vni);
990 vty_out(vty, "%-17s %-6s %-21s %-5s\n", "MAC",
991 "Type", "Intf/Remote VTEP", "VLAN");
d62a17ae 992 }
1a8c5c38 993 vty_out(vty, "%-17s %-6s %-21s\n", buf1, "remote",
994 inet_ntoa(mac->fwd_info.r_vtep_ip));
d62a17ae 995 } else {
1a8c5c38 996 json_object_string_add(json_mac, "type", "remote");
997 json_object_string_add(json_mac, "remoteVtep",
cd233079 998 inet_ntoa(mac->fwd_info.r_vtep_ip));
1a8c5c38 999 json_object_object_add(json_mac_hdr, buf1, json_mac);
1000 json_object_int_add(json_mac, "localSequence",
1001 mac->loc_seq);
1002 json_object_int_add(json_mac, "remoteSequence",
1003 mac->rem_seq);
87454e6b
CS		 1004 json_object_int_add(json_mac, "detectionCount",
1005 mac->dad_count);
1006 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE))
1007 json_object_boolean_true_add(json_mac,
1008 "isDuplicate");
1009 else
1010 json_object_boolean_false_add(json_mac,
1011 "isDuplicate");
1012
d62a17ae 1013 }
1a8c5c38 1014
1015 wctx->count++;
d62a17ae 1016 }
cec2e17d 1017}
1018
1374d4db
CS		 1019/* Print Duplicate MAC */
1020static void zvni_print_dad_mac_hash(struct hash_backet *backet, void *ctxt)
1021{
1022 zebra_mac_t *mac;
1023
1024 mac = (zebra_mac_t *)backet->data;
1025 if (!mac)
1026 return;
1027
1028 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE))
1029 zvni_print_mac_hash(backet, ctxt);
1030}
1031
cec2e17d 1032/*
1033 * Print MACs for all VNI.
1034 */
d62a17ae 1035static void zvni_print_mac_hash_all_vni(struct hash_backet *backet, void *ctxt)
cec2e17d 1036{
d62a17ae 1037 struct vty *vty;
cd233079
CS		 1038 json_object *json = NULL, *json_vni = NULL;
1039 json_object *json_mac = NULL;
d62a17ae 1040 zebra_vni_t *zvni;
d7c0a89a 1041 uint32_t num_macs;
d62a17ae 1042 struct mac_walk_ctx *wctx = ctxt;
cd233079 1043 char vni_str[VNI_STR_LEN];
cec2e17d 1044
d62a17ae 1045 vty = (struct vty *)wctx->vty;
cd233079 1046 json = (struct json_object *)wctx->json;
cec2e17d 1047
d62a17ae 1048 zvni = (zebra_vni_t *)backet->data;
d62a17ae 1049 wctx->zvni = zvni;
cec2e17d 1050
d62a17ae 1051 /*We are iterating over a new VNI, set the count to 0*/
1052 wctx->count = 0;
cec2e17d 1053
790f8dc5 1054 num_macs = num_valid_macs(zvni);
d62a17ae 1055 if (!num_macs)
1056 return;
cd233079 1057
1374d4db
CS		 1058 if (wctx->print_dup)
1059 num_macs = num_dup_detected_macs(zvni);
1060
cd233079
CS		 1061 if (json) {
1062 json_vni = json_object_new_object();
1063 json_mac = json_object_new_object();
1064 snprintf(vni_str, VNI_STR_LEN, "%u", zvni->vni);
d62a17ae 1065 }
cec2e17d 1066
cd233079
CS		 1067 if (!CHECK_FLAG(wctx->flags, SHOW_REMOTE_MAC_FROM_VTEP)) {
1068 if (json == NULL) {
1069 vty_out(vty, "\nVNI %u #MACs (local and remote) %u\n\n",
1070 zvni->vni, num_macs);
1071 vty_out(vty, "%-17s %-6s %-21s %-5s\n", "MAC", "Type",
1072 "Intf/Remote VTEP", "VLAN");
1073 } else
1074 json_object_int_add(json_vni, "numMacs", num_macs);
1075 }
1374d4db
CS		 1076
1077 if (!num_macs) {
1078 if (json) {
1079 json_object_int_add(json_vni, "numMacs", num_macs);
1080 json_object_object_add(json, vni_str, json_vni);
1081 }
1082 return;
1083 }
1084
cd233079
CS		 1085 /* assign per-vni to wctx->json object to fill macs
1086 * under the vni. Re-assign primary json object to fill
1087 * next vni information.
1088 */
1089 wctx->json = json_mac;
1374d4db
CS		 1090 if (wctx->print_dup)
1091 hash_iterate(zvni->mac_table, zvni_print_dad_mac_hash, wctx);
1092 else
1093 hash_iterate(zvni->mac_table, zvni_print_mac_hash, wctx);
cd233079
CS		 1094 wctx->json = json;
1095 if (json) {
1096 if (wctx->count)
1097 json_object_object_add(json_vni, "macs", json_mac);
1098 json_object_object_add(json, vni_str, json_vni);
1099 }
cec2e17d 1100}
1101
996c9314 1102static void zl3vni_print_nh_hash(struct hash_backet *backet, void *ctx)
b7cfce93
MK		 1103{
1104 struct nh_walk_ctx *wctx = NULL;
1105 struct vty *vty = NULL;
32798965 1106 struct json_object *json_vni = NULL;
b7cfce93
MK		 1107 struct json_object *json_nh = NULL;
1108 zebra_neigh_t *n = NULL;
1109 char buf1[ETHER_ADDR_STRLEN];
2dbad57f 1110 char buf2[INET6_ADDRSTRLEN];
b7cfce93
MK		 1111
1112 wctx = (struct nh_walk_ctx *)ctx;
1113 vty = wctx->vty;
32798965
MK		 1114 json_vni = wctx->json;
1115 if (json_vni)
b7cfce93
MK		 1116 json_nh = json_object_new_object();
1117 n = (zebra_neigh_t *)backet->data;
b7cfce93 1118
32798965 1119 if (!json_vni) {
4cce389e 1120 vty_out(vty, "%-15s %-17s\n",
2dbad57f 1121 ipaddr2str(&(n->ip), buf2, sizeof(buf2)),
4cce389e 1122 prefix_mac2str(&n->emac, buf1, sizeof(buf1)));
b7cfce93 1123 } else {
4cce389e 1124 json_object_string_add(json_nh, "nexthopIp",
32798965 1125 ipaddr2str(&n->ip, buf2, sizeof(buf2)));
996c9314
LB		 1126 json_object_string_add(
1127 json_nh, "routerMac",
1128 prefix_mac2str(&n->emac, buf1, sizeof(buf1)));
32798965
MK		 1129 json_object_object_add(json_vni,
1130 ipaddr2str(&(n->ip), buf2, sizeof(buf2)),
1131 json_nh);
b7cfce93
MK		 1132 }
1133}
1134
2dbad57f 1135static void zl3vni_print_nh_hash_all_vni(struct hash_backet *backet,
32798965 1136 void **args)
2dbad57f 1137{
1138 struct vty *vty = NULL;
1139 json_object *json = NULL;
1140 json_object *json_vni = NULL;
2dbad57f 1141 zebra_l3vni_t *zl3vni = NULL;
1142 uint32_t num_nh = 0;
32798965 1143 struct nh_walk_ctx wctx;
2dbad57f 1144 char vni_str[VNI_STR_LEN];
1145
32798965
MK		 1146 vty = (struct vty *)args[0];
1147 json = (struct json_object *)args[1];
2dbad57f 1148
1149 zl3vni = (zebra_l3vni_t *)backet->data;
2dbad57f 1150
1151 num_nh = hashcount(zl3vni->nh_table);
1152 if (!num_nh)
1153 return;
1154
1155 if (json) {
1156 json_vni = json_object_new_object();
2dbad57f 1157 snprintf(vni_str, VNI_STR_LEN, "%u", zl3vni->vni);
1158 }
1159
1160 if (json == NULL) {
996c9314 1161 vty_out(vty, "\nVNI %u #Next-Hops %u\n\n", zl3vni->vni, num_nh);
4cce389e 1162 vty_out(vty, "%-15s %-17s\n", "IP", "RMAC");
2dbad57f 1163 } else
4cce389e 1164 json_object_int_add(json_vni, "numNextHops", num_nh);
2dbad57f 1165
32798965
MK		 1166 memset(&wctx, 0, sizeof(struct nh_walk_ctx));
1167 wctx.vty = vty;
1168 wctx.json = json_vni;
1169 hash_iterate(zl3vni->nh_table, zl3vni_print_nh_hash, &wctx);
1170 if (json)
2dbad57f 1171 json_object_object_add(json, vni_str, json_vni);
2dbad57f 1172}
1173
b7cfce93 1174static void zl3vni_print_rmac_hash_all_vni(struct hash_backet *backet,
c0b4eaa4 1175 void **args)
b7cfce93
MK		 1176{
1177 struct vty *vty = NULL;
1178 json_object *json = NULL;
1179 json_object *json_vni = NULL;
b7cfce93 1180 zebra_l3vni_t *zl3vni = NULL;
d7c0a89a 1181 uint32_t num_rmacs;
c0b4eaa4 1182 struct rmac_walk_ctx wctx;
b7cfce93
MK		 1183 char vni_str[VNI_STR_LEN];
1184
c0b4eaa4
MK		 1185 vty = (struct vty *)args[0];
1186 json = (struct json_object *)args[1];
b7cfce93
MK		 1187
1188 zl3vni = (zebra_l3vni_t *)backet->data;
b7cfce93
MK		 1189
1190 num_rmacs = hashcount(zl3vni->rmac_table);
1191 if (!num_rmacs)
1192 return;
1193
1194 if (json) {
1195 json_vni = json_object_new_object();
b7cfce93
MK		 1196 snprintf(vni_str, VNI_STR_LEN, "%u", zl3vni->vni);
1197 }
1198
1199 if (json == NULL) {
996c9314 1200 vty_out(vty, "\nVNI %u #RMACs %u\n\n", zl3vni->vni, num_rmacs);
4cce389e 1201 vty_out(vty, "%-17s %-21s\n", "RMAC", "Remote VTEP");
b7cfce93
MK		 1202 } else
1203 json_object_int_add(json_vni, "numRmacs", num_rmacs);
1204
1205 /* assign per-vni to wctx->json object to fill macs
1206 * under the vni. Re-assign primary json object to fill
1207 * next vni information.
1208 */
c0b4eaa4
MK		 1209 memset(&wctx, 0, sizeof(struct rmac_walk_ctx));
1210 wctx.vty = vty;
1211 wctx.json = json_vni;
1212 hash_iterate(zl3vni->rmac_table, zl3vni_print_rmac_hash, &wctx);
1213 if (json)
b7cfce93 1214 json_object_object_add(json, vni_str, json_vni);
b7cfce93
MK		 1215}
1216
996c9314 1217static void zl3vni_print_rmac_hash(struct hash_backet *backet, void *ctx)
b7cfce93
MK		 1218{
1219 zebra_mac_t *zrmac = NULL;
1220 struct rmac_walk_ctx *wctx = NULL;
1221 struct vty *vty = NULL;
1222 struct json_object *json = NULL;
1223 struct json_object *json_rmac = NULL;
1224 char buf[ETHER_ADDR_STRLEN];
1225
1226 wctx = (struct rmac_walk_ctx *)ctx;
1227 vty = wctx->vty;
1228 json = wctx->json;
1229 if (json)
1230 json_rmac = json_object_new_object();
1231 zrmac = (zebra_mac_t *)backet->data;
b7cfce93
MK		 1232
1233 if (!json) {
4cce389e 1234 vty_out(vty, "%-17s %-21s\n",
b7cfce93 1235 prefix_mac2str(&zrmac->macaddr, buf, sizeof(buf)),
996c9314 1236 inet_ntoa(zrmac->fwd_info.r_vtep_ip));
b7cfce93 1237 } else {
996c9314
LB		 1238 json_object_string_add(
1239 json_rmac, "routerMac",
1240 prefix_mac2str(&zrmac->macaddr, buf, sizeof(buf)));
4cce389e 1241 json_object_string_add(json_rmac, "vtepIp",
b7cfce93 1242 inet_ntoa(zrmac->fwd_info.r_vtep_ip));
996c9314
LB		 1243 json_object_object_add(
1244 json, prefix_mac2str(&zrmac->macaddr, buf, sizeof(buf)),
1245 json_rmac);
b7cfce93
MK		 1246 }
1247}
1248
1249/* print a specific L3 VNI entry */
1250static void zl3vni_print(zebra_l3vni_t *zl3vni, void **ctx)
1251{
1252 char buf[ETHER_ADDR_STRLEN];
1253 struct vty *vty = NULL;
1254 json_object *json = NULL;
1255 zebra_vni_t *zvni = NULL;
1256 json_object *json_vni_list = NULL;
1257 struct listnode *node = NULL, *nnode = NULL;
1258
1259 vty = ctx[0];
1260 json = ctx[1];
1261
1262 if (!json) {
1263 vty_out(vty, "VNI: %u\n", zl3vni->vni);
4cce389e 1264 vty_out(vty, " Type: %s\n", "L3");
996c9314 1265 vty_out(vty, " Tenant VRF: %s\n", zl3vni_vrf_name(zl3vni));
4cce389e 1266 vty_out(vty, " Local Vtep Ip: %s\n",
b67a60d2 1267 inet_ntoa(zl3vni->local_vtep_ip));
b7cfce93
MK		 1268 vty_out(vty, " Vxlan-Intf: %s\n",
1269 zl3vni_vxlan_if_name(zl3vni));
996c9314
LB		 1270 vty_out(vty, " SVI-If: %s\n", zl3vni_svi_if_name(zl3vni));
1271 vty_out(vty, " State: %s\n", zl3vni_state2str(zl3vni));
c48d9f5f 1272 vty_out(vty, " VNI Filter: %s\n",
996c9314
LB		 1273 CHECK_FLAG(zl3vni->filter, PREFIX_ROUTES_ONLY)
1274 ? "prefix-routes-only"
1275 : "none");
4cce389e 1276 vty_out(vty, " Router MAC: %s\n",
b7cfce93 1277 zl3vni_rmac2str(zl3vni, buf, sizeof(buf)));
4cce389e 1278 vty_out(vty, " L2 VNIs: ");
b7cfce93
MK		 1279 for (ALL_LIST_ELEMENTS(zl3vni->l2vnis, node, nnode, zvni))
1280 vty_out(vty, "%u ", zvni->vni);
1281 vty_out(vty, "\n");
1282 } else {
1283 json_vni_list = json_object_new_array();
1284 json_object_int_add(json, "vni", zl3vni->vni);
4cce389e
MK		 1285 json_object_string_add(json, "type", "L3");
1286 json_object_string_add(json, "localVtepIp",
b67a60d2 1287 inet_ntoa(zl3vni->local_vtep_ip));
4cce389e 1288 json_object_string_add(json, "vxlanIntf",
b7cfce93 1289 zl3vni_vxlan_if_name(zl3vni));
4cce389e 1290 json_object_string_add(json, "sviIntf",
b7cfce93 1291 zl3vni_svi_if_name(zl3vni));
996c9314
LB		 1292 json_object_string_add(json, "state", zl3vni_state2str(zl3vni));
1293 json_object_string_add(json, "vrf", zl3vni_vrf_name(zl3vni));
1294 json_object_string_add(
1295 json, "routerMac",
1296 zl3vni_rmac2str(zl3vni, buf, sizeof(buf)));
1297 json_object_string_add(
1298 json, "vniFilter",
1299 CHECK_FLAG(zl3vni->filter, PREFIX_ROUTES_ONLY)
1300 ? "prefix-routes-only"
1301 : "none");
b7cfce93
MK		 1302 for (ALL_LIST_ELEMENTS(zl3vni->l2vnis, node, nnode, zvni)) {
1303 json_object_array_add(json_vni_list,
1304 json_object_new_int(zvni->vni));
1305 }
4cce389e 1306 json_object_object_add(json, "l2Vnis", json_vni_list);
b7cfce93
MK		 1307 }
1308}
1309
cec2e17d 1310/*
1311 * Print a specific VNI entry.
1312 */
cd233079 1313static void zvni_print(zebra_vni_t *zvni, void **ctxt)
d62a17ae 1314{
1315 struct vty *vty;
1316 zebra_vtep_t *zvtep;
d7c0a89a
QY		 1317 uint32_t num_macs;
1318 uint32_t num_neigh;
cd233079
CS		 1319 json_object *json = NULL;
1320 json_object *json_vtep_list = NULL;
1321 json_object *json_ip_str = NULL;
d62a17ae 1322
cd233079
CS		 1323 vty = ctxt[0];
1324 json = ctxt[1];
1325
b7cfce93 1326 if (json == NULL) {
cd233079 1327 vty_out(vty, "VNI: %u\n", zvni->vni);
4cce389e
MK		 1328 vty_out(vty, " Type: %s\n", "L2");
1329 vty_out(vty, " Tenant VRF: %s\n", vrf_id_to_name(zvni->vrf_id));
b7cfce93 1330 } else {
cd233079 1331 json_object_int_add(json, "vni", zvni->vni);
4cce389e 1332 json_object_string_add(json, "type", "L2");
b7cfce93
MK		 1333 json_object_string_add(json, "vrf",
1334 vrf_id_to_name(zvni->vrf_id));
1335 }
d62a17ae 1336
d62a17ae 1337 if (!zvni->vxlan_if) { // unexpected
cd233079
CS		 1338 if (json == NULL)
1339 vty_out(vty, " VxLAN interface: unknown\n");
d62a17ae 1340 return;
1341 }
790f8dc5 1342 num_macs = num_valid_macs(zvni);
cd233079 1343 num_neigh = hashcount(zvni->neigh_table);
4cce389e 1344 if (json == NULL) {
996c9314 1345 vty_out(vty, " VxLAN interface: %s\n", zvni->vxlan_if->name);
4cce389e 1346 vty_out(vty, " VxLAN ifIndex: %u\n", zvni->vxlan_if->ifindex);
996c9314 1347 vty_out(vty, " Local VTEP IP: %s\n",
cd233079 1348 inet_ntoa(zvni->local_vtep_ip));
4cce389e 1349 } else {
cd233079
CS		 1350 json_object_string_add(json, "vxlanInterface",
1351 zvni->vxlan_if->name);
1352 json_object_int_add(json, "ifindex", zvni->vxlan_if->ifindex);
1353 json_object_string_add(json, "vtepIp",
1354 inet_ntoa(zvni->local_vtep_ip));
ddd16ed5
MK		 1355 json_object_string_add(json, "advertiseGatewayMacip",
1356 zvni->advertise_gw_macip ? "Yes" : "No");
cd233079
CS		 1357 json_object_int_add(json, "numMacs", num_macs);
1358 json_object_int_add(json, "numArpNd", num_neigh);
1359 }
d62a17ae 1360 if (!zvni->vteps) {
cd233079
CS		 1361 if (json == NULL)
1362 vty_out(vty, " No remote VTEPs known for this VNI\n");
d62a17ae 1363 } else {
cd233079
CS		 1364 if (json == NULL)
1365 vty_out(vty, " Remote VTEPs for this VNI:\n");
1366 else
1367 json_vtep_list = json_object_new_array();
1368 for (zvtep = zvni->vteps; zvtep; zvtep = zvtep->next) {
1369 if (json == NULL)
1370 vty_out(vty, " %s\n",
1371 inet_ntoa(zvtep->vtep_ip));
1372 else {
1373 json_ip_str = json_object_new_string(
1374 inet_ntoa(zvtep->vtep_ip));
1375 json_object_array_add(json_vtep_list,
1376 json_ip_str);
1377 }
1378 }
1379 if (json)
1380 json_object_object_add(json, "numRemoteVteps",
1381 json_vtep_list);
1382 }
1383 if (json == NULL) {
1384 vty_out(vty,
1385 " Number of MACs (local and remote) known for this VNI: %u\n",
1386 num_macs);
1387 vty_out(vty,
1388 " Number of ARPs (IPv4 and IPv6, local and remote) "
1389 "known for this VNI: %u\n",
1390 num_neigh);
ddd16ed5
MK		 1391 vty_out(vty, " Advertise-gw-macip: %s\n",
1392 zvni->advertise_gw_macip ? "Yes" : "No");
d62a17ae 1393 }
cec2e17d 1394}
1395
b7cfce93 1396/* print a L3 VNI hash entry */
996c9314 1397static void zl3vni_print_hash(struct hash_backet *backet, void *ctx[])
b7cfce93 1398{
b7cfce93
MK		 1399 struct vty *vty = NULL;
1400 json_object *json = NULL;
51d8de8f 1401 json_object *json_vni = NULL;
b7cfce93
MK		 1402 zebra_l3vni_t *zl3vni = NULL;
1403
51d8de8f
MK		 1404 vty = (struct vty *)ctx[0];
1405 json = (json_object *)ctx[1];
b7cfce93
MK		 1406
1407 zl3vni = (zebra_l3vni_t *)backet->data;
b7cfce93
MK		 1408
1409 if (!json) {
996c9314
LB		 1410 vty_out(vty, "%-10u %-4s %-21s %-8lu %-8lu %-15s %-37s\n",
1411 zl3vni->vni, "L3", zl3vni_vxlan_if_name(zl3vni),
4cce389e 1412 hashcount(zl3vni->rmac_table),
996c9314 1413 hashcount(zl3vni->nh_table), "n/a",
4cce389e 1414 zl3vni_vrf_name(zl3vni));
b7cfce93 1415 } else {
51d8de8f
MK		 1416 char vni_str[VNI_STR_LEN];
1417
1418 snprintf(vni_str, VNI_STR_LEN, "%u", zl3vni->vni);
1419 json_vni = json_object_new_object();
1420 json_object_int_add(json_vni, "vni", zl3vni->vni);
4cce389e 1421 json_object_string_add(json_vni, "vxlanIf",
b7cfce93 1422 zl3vni_vxlan_if_name(zl3vni));
4cce389e
MK		 1423 json_object_int_add(json_vni, "numMacs",
1424 hashcount(zl3vni->rmac_table));
1425 json_object_int_add(json_vni, "numArpNd",
1426 hashcount(zl3vni->nh_table));
1427 json_object_string_add(json_vni, "numRemoteVteps", "n/a");
1428 json_object_string_add(json_vni, "type", "L3");
1429 json_object_string_add(json_vni, "tenantVrf",
b7cfce93 1430 zl3vni_vrf_name(zl3vni));
51d8de8f 1431 json_object_object_add(json, vni_str, json_vni);
b7cfce93 1432 }
b7cfce93
MK		 1433}
1434
cec2e17d 1435/*
1436 * Print a VNI hash entry - called for display of all VNIs.
1437 */
cd233079 1438static void zvni_print_hash(struct hash_backet *backet, void *ctxt[])
cec2e17d 1439{
d62a17ae 1440 struct vty *vty;
1441 zebra_vni_t *zvni;
1442 zebra_vtep_t *zvtep;
d7c0a89a
QY		 1443 uint32_t num_vteps = 0;
1444 uint32_t num_macs = 0;
1445 uint32_t num_neigh = 0;
cd233079
CS		 1446 json_object *json = NULL;
1447 json_object *json_vni = NULL;
1448 json_object *json_ip_str = NULL;
1449 json_object *json_vtep_list = NULL;
1450
1451 vty = ctxt[0];
1452 json = ctxt[1];
cec2e17d 1453
d62a17ae 1454 zvni = (zebra_vni_t *)backet->data;
cec2e17d 1455
d62a17ae 1456 zvtep = zvni->vteps;
1457 while (zvtep) {
1458 num_vteps++;
1459 zvtep = zvtep->next;
1460 }
cec2e17d 1461
790f8dc5 1462 num_macs = num_valid_macs(zvni);
d62a17ae 1463 num_neigh = hashcount(zvni->neigh_table);
cd233079 1464 if (json == NULL)
996c9314 1465 vty_out(vty, "%-10u %-4s %-21s %-8u %-8u %-15u %-37s\n",
4cce389e 1466 zvni->vni, "L2",
cd233079 1467 zvni->vxlan_if ? zvni->vxlan_if->name : "unknown",
996c9314 1468 num_macs, num_neigh, num_vteps,
b7cfce93 1469 vrf_id_to_name(zvni->vrf_id));
cd233079
CS		 1470 else {
1471 char vni_str[VNI_STR_LEN];
1472 snprintf(vni_str, VNI_STR_LEN, "%u", zvni->vni);
1473 json_vni = json_object_new_object();
4cce389e
MK		 1474 json_object_int_add(json_vni, "vni", zvni->vni);
1475 json_object_string_add(json_vni, "type", "L2");
cd233079
CS		 1476 json_object_string_add(json_vni, "vxlanIf",
1477 zvni->vxlan_if ? zvni->vxlan_if->name
1478 : "unknown");
cd233079
CS		 1479 json_object_int_add(json_vni, "numMacs", num_macs);
1480 json_object_int_add(json_vni, "numArpNd", num_neigh);
1481 json_object_int_add(json_vni, "numRemoteVteps", num_vteps);
4cce389e
MK		 1482 json_object_string_add(json_vni, "tenantVrf",
1483 vrf_id_to_name(zvni->vrf_id));
cd233079
CS		 1484 if (num_vteps) {
1485 json_vtep_list = json_object_new_array();
1486 for (zvtep = zvni->vteps; zvtep; zvtep = zvtep->next) {
1487 json_ip_str = json_object_new_string(
1488 inet_ntoa(zvtep->vtep_ip));
1489 json_object_array_add(json_vtep_list,
1490 json_ip_str);
1491 }
1492 json_object_object_add(json_vni, "remoteVteps",
1493 json_vtep_list);
1494 }
1495 json_object_object_add(json, vni_str, json_vni);
1496 }
cec2e17d 1497}
1498
13d60d35 1499/*
2232a77c 1500 * Inform BGP about local MACIP.
1501 */
996c9314 1502static int zvni_macip_send_msg_to_client(vni_t vni, struct ethaddr *macaddr,
d7c0a89a 1503 struct ipaddr *ip, uint8_t flags,
f07e1c99 1504 uint32_t seq, uint16_t cmd)
d62a17ae 1505{
d62a17ae 1506 char buf[ETHER_ADDR_STRLEN];
1507 char buf2[INET6_ADDRSTRLEN];
b7cfce93
MK		 1508 int ipa_len;
1509 struct zserv *client = NULL;
1510 struct stream *s = NULL;
d62a17ae 1511
21ccc0cf 1512 client = zserv_find_client(ZEBRA_ROUTE_BGP, 0);
d62a17ae 1513 /* BGP may not be running. */
1514 if (!client)
1515 return 0;
1516
1002497a 1517 s = stream_new(ZEBRA_MAX_PACKET_SIZ);
d62a17ae 1518
7cf15b25 1519 zclient_create_header(s, cmd, VRF_DEFAULT);
d62a17ae 1520 stream_putl(s, vni);
ff8b7eb8 1521 stream_put(s, macaddr->octet, ETH_ALEN);
d62a17ae 1522 if (ip) {
1523 ipa_len = 0;
1524 if (IS_IPADDR_V4(ip))
1525 ipa_len = IPV4_MAX_BYTELEN;
1526 else if (IS_IPADDR_V6(ip))
1527 ipa_len = IPV6_MAX_BYTELEN;
1528
1529 stream_putl(s, ipa_len); /* IP address length */
1530 if (ipa_len)
1531 stream_put(s, &ip->ip.addr, ipa_len); /* IP address */
1532 } else
1533 stream_putl(s, 0); /* Just MAC. */
1534
f07e1c99 1535 if (cmd == ZEBRA_MACIP_ADD) {
1536 stream_putc(s, flags); /* sticky mac/gateway mac */
1537 stream_putl(s, seq); /* sequence number */
1538 }
d62a17ae 1539
b7cfce93 1540
d62a17ae 1541 /* Write packet size. */
1542 stream_putw_at(s, 0, stream_get_endp(s));
1543
1544 if (IS_ZEBRA_DEBUG_VXLAN)
1a98c087 1545 zlog_debug(
f07e1c99 1546 "Send MACIP %s flags 0x%x MAC %s IP %s seq %u L2-VNI %u to %s",
996c9314
LB		 1547 (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", flags,
1548 prefix_mac2str(macaddr, buf, sizeof(buf)),
f07e1c99 1549 ipaddr2str(ip, buf2, sizeof(buf2)), seq, vni,
1a98c087 1550 zebra_route_string(client->proto));
d62a17ae 1551
1552 if (cmd == ZEBRA_MACIP_ADD)
1553 client->macipadd_cnt++;
1554 else
1555 client->macipdel_cnt++;
1556
21ccc0cf 1557 return zserv_send_message(client, s);
2232a77c 1558}
1559
1560/*
1561 * Make hash key for neighbors.
13d60d35 1562 */
d62a17ae 1563static unsigned int neigh_hash_keymake(void *p)
13d60d35 1564{
d62a17ae 1565 zebra_neigh_t *n = p;
1566 struct ipaddr *ip = &n->ip;
13d60d35 1567
d62a17ae 1568 if (IS_IPADDR_V4(ip))
1569 return jhash_1word(ip->ipaddr_v4.s_addr, 0);
2232a77c 1570
d62a17ae 1571 return jhash2(ip->ipaddr_v6.s6_addr32,
1572 ZEBRA_NUM_OF(ip->ipaddr_v6.s6_addr32), 0);
13d60d35 1573}
1574
1575/*
2232a77c 1576 * Compare two neighbor hash structures.
13d60d35 1577 */
74df8d6d 1578static bool neigh_cmp(const void *p1, const void *p2)
13d60d35 1579{
d62a17ae 1580 const zebra_neigh_t *n1 = p1;
1581 const zebra_neigh_t *n2 = p2;
13d60d35 1582
d62a17ae 1583 if (n1 == NULL && n2 == NULL)
74df8d6d 1584 return true;
2232a77c 1585
d62a17ae 1586 if (n1 == NULL || n2 == NULL)
74df8d6d 1587 return false;
2232a77c 1588
d62a17ae 1589 return (memcmp(&n1->ip, &n2->ip, sizeof(struct ipaddr)) == 0);
13d60d35 1590}
1591
27fa3398
DS		 1592static int neigh_list_cmp(void *p1, void *p2)
1593{
1594 const zebra_neigh_t *n1 = p1;
1595 const zebra_neigh_t *n2 = p2;
1596
1597 return memcmp(&n1->ip, &n2->ip, sizeof(struct ipaddr));
1598}
1599
13d60d35 1600/*
2232a77c 1601 * Callback to allocate neighbor hash entry.
13d60d35 1602 */
d62a17ae 1603static void *zvni_neigh_alloc(void *p)
13d60d35 1604{
d62a17ae 1605 const zebra_neigh_t *tmp_n = p;
1606 zebra_neigh_t *n;
13d60d35 1607
d62a17ae 1608 n = XCALLOC(MTYPE_NEIGH, sizeof(zebra_neigh_t));
1609 *n = *tmp_n;
2232a77c 1610
d62a17ae 1611 return ((void *)n);
13d60d35 1612}
1613
1614/*
2232a77c 1615 * Add neighbor entry.
13d60d35 1616 */
b6938a74
MK		 1617static zebra_neigh_t *zvni_neigh_add(zebra_vni_t *zvni, struct ipaddr *ip,
1618 struct ethaddr *mac)
13d60d35 1619{
d62a17ae 1620 zebra_neigh_t tmp_n;
1621 zebra_neigh_t *n = NULL;
b6938a74 1622 zebra_mac_t *zmac = NULL;
13d60d35 1623
d62a17ae 1624 memset(&tmp_n, 0, sizeof(zebra_neigh_t));
1625 memcpy(&tmp_n.ip, ip, sizeof(struct ipaddr));
1626 n = hash_get(zvni->neigh_table, &tmp_n, zvni_neigh_alloc);
1627 assert(n);
13d60d35 1628
b6938a74
MK		 1629 memcpy(&n->emac, mac, ETH_ALEN);
1630 n->state = ZEBRA_NEIGH_INACTIVE;
1631
1632 /* Associate the neigh to mac */
1633 zmac = zvni_mac_lookup(zvni, mac);
1634 if (zmac)
1635 listnode_add_sort(zmac->neigh_list, n);
1636
d62a17ae 1637 return n;
13d60d35 1638}
1639
1640/*
2232a77c 1641 * Delete neighbor entry.
13d60d35 1642 */
d62a17ae 1643static int zvni_neigh_del(zebra_vni_t *zvni, zebra_neigh_t *n)
13d60d35 1644{
d62a17ae 1645 zebra_neigh_t *tmp_n;
b6938a74
MK		 1646 zebra_mac_t *zmac = NULL;
1647
1648 zmac = zvni_mac_lookup(zvni, &n->emac);
1649 if (zmac)
1650 listnode_delete(zmac->neigh_list, n);
13d60d35 1651
d62a17ae 1652 /* Free the VNI hash entry and allocated memory. */
1653 tmp_n = hash_release(zvni->neigh_table, n);
1654 if (tmp_n)
1655 XFREE(MTYPE_NEIGH, tmp_n);
13d60d35 1656
d62a17ae 1657 return 0;
13d60d35 1658}
1659
1660/*
2232a77c 1661 * Free neighbor hash entry (callback)
13d60d35 1662 */
b1599bb6 1663static void zvni_neigh_del_hash_entry(struct hash_backet *backet, void *arg)
13d60d35 1664{
d62a17ae 1665 struct neigh_walk_ctx *wctx = arg;
1666 zebra_neigh_t *n = backet->data;
2232a77c 1667
d62a17ae 1668 if (((wctx->flags & DEL_LOCAL_NEIGH) && (n->flags & ZEBRA_NEIGH_LOCAL))
1669 || ((wctx->flags & DEL_REMOTE_NEIGH)
1670 && (n->flags & ZEBRA_NEIGH_REMOTE))
1671 || ((wctx->flags & DEL_REMOTE_NEIGH_FROM_VTEP)
1672 && (n->flags & ZEBRA_NEIGH_REMOTE)
1673 && IPV4_ADDR_SAME(&n->r_vtep_ip, &wctx->r_vtep_ip))) {
1674 if (wctx->upd_client && (n->flags & ZEBRA_NEIGH_LOCAL))
2853fed6 1675 zvni_neigh_send_del_to_client(wctx->zvni->vni, &n->ip,
1a98c087 1676 &n->emac, 0);
13d60d35 1677
d62a17ae 1678 if (wctx->uninstall)
1679 zvni_neigh_uninstall(wctx->zvni, n);
13d60d35 1680
b1599bb6 1681 zvni_neigh_del(wctx->zvni, n);
d62a17ae 1682 }
13d60d35 1683
b1599bb6 1684 return;
13d60d35 1685}
1686
1687/*
2232a77c 1688 * Delete all neighbor entries from specific VTEP for a particular VNI.
13d60d35 1689 */
d62a17ae 1690static void zvni_neigh_del_from_vtep(zebra_vni_t *zvni, int uninstall,
1691 struct in_addr *r_vtep_ip)
13d60d35 1692{
d62a17ae 1693 struct neigh_walk_ctx wctx;
13d60d35 1694
d62a17ae 1695 if (!zvni->neigh_table)
1696 return;
13d60d35 1697
d62a17ae 1698 memset(&wctx, 0, sizeof(struct neigh_walk_ctx));
1699 wctx.zvni = zvni;
1700 wctx.uninstall = uninstall;
1701 wctx.flags = DEL_REMOTE_NEIGH_FROM_VTEP;
1702 wctx.r_vtep_ip = *r_vtep_ip;
13d60d35 1703
b1599bb6 1704 hash_iterate(zvni->neigh_table, zvni_neigh_del_hash_entry, &wctx);
2232a77c 1705}
13d60d35 1706
2232a77c 1707/*
1708 * Delete all neighbor entries for this VNI.
1709 */
996c9314 1710static void zvni_neigh_del_all(zebra_vni_t *zvni, int uninstall, int upd_client,
d7c0a89a 1711 uint32_t flags)
2232a77c 1712{
d62a17ae 1713 struct neigh_walk_ctx wctx;
13d60d35 1714
d62a17ae 1715 if (!zvni->neigh_table)
1716 return;
13d60d35 1717
d62a17ae 1718 memset(&wctx, 0, sizeof(struct neigh_walk_ctx));
1719 wctx.zvni = zvni;
d62a17ae 1720 wctx.uninstall = uninstall;
1721 wctx.upd_client = upd_client;
1722 wctx.flags = flags;
2232a77c 1723
b1599bb6 1724 hash_iterate(zvni->neigh_table, zvni_neigh_del_hash_entry, &wctx);
13d60d35 1725}
1726
1727/*
2232a77c 1728 * Look up neighbor hash entry.
1729 */
d62a17ae 1730static zebra_neigh_t *zvni_neigh_lookup(zebra_vni_t *zvni, struct ipaddr *ip)
2232a77c 1731{
d62a17ae 1732 zebra_neigh_t tmp;
1733 zebra_neigh_t *n;
2232a77c 1734
d62a17ae 1735 memset(&tmp, 0, sizeof(tmp));
1736 memcpy(&tmp.ip, ip, sizeof(struct ipaddr));
1737 n = hash_lookup(zvni->neigh_table, &tmp);
2232a77c 1738
d62a17ae 1739 return n;
2232a77c 1740}
1741
f07e1c99 1742/*
1743 * Process all neighbors associated with a MAC upon the MAC being learnt
1744 * locally or undergoing any other change (such as sequence number).
1745 */
1746static void zvni_process_neigh_on_local_mac_change(zebra_vni_t *zvni,
1747 zebra_mac_t *zmac,
1748 bool seq_change)
b6938a74
MK		 1749{
1750 zebra_neigh_t *n = NULL;
1751 struct listnode *node = NULL;
c80a972c 1752 struct zebra_vrf *zvrf = NULL;
b6938a74 1753 char buf[ETHER_ADDR_STRLEN];
b6938a74 1754
c80a972c
CS		 1755 zvrf = vrf_info_lookup(zvni->vrf_id);
1756
f07e1c99 1757 if (IS_ZEBRA_DEBUG_VXLAN)
1758 zlog_debug("Processing neighbors on local MAC %s %s, VNI %u",
1759 prefix_mac2str(&zmac->macaddr, buf, sizeof(buf)),
1760 seq_change ? "CHANGE" : "ADD", zvni->vni);
1761
1762 /* Walk all neighbors and mark any inactive local neighbors as
1763 * active and/or update sequence number upon a move, and inform BGP.
1764 * The action for remote neighbors is TBD.
1765 * NOTE: We can't simply uninstall remote neighbors as the kernel may
1766 * accidentally end up deleting a just-learnt local neighbor.
1767 */
b6938a74
MK		 1768 for (ALL_LIST_ELEMENTS_RO(zmac->neigh_list, node, n)) {
1769 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) {
f07e1c99 1770 if (IS_ZEBRA_NEIGH_INACTIVE(n) || seq_change) {
b6938a74 1771 ZEBRA_NEIGH_SET_ACTIVE(n);
f07e1c99 1772 n->loc_seq = zmac->loc_seq;
c80a972c
CS		 1773 if (!(zvrf->dup_addr_detect &&
1774 zvrf->dad_freeze && !!CHECK_FLAG(n->flags,
1775 ZEBRA_NEIGH_DUPLICATE)))
1776 zvni_neigh_send_add_to_client(
1777 zvni->vni, &n->ip, &n->emac,
1778 n->flags, n->loc_seq);
b6938a74 1779 }
b6938a74
MK		 1780 }
1781 }
1782}
1783
f07e1c99 1784/*
1785 * Process all neighbors associated with a local MAC upon the MAC being
1786 * deleted.
1787 */
2853fed6 1788static void zvni_process_neigh_on_local_mac_del(zebra_vni_t *zvni,
b6938a74
MK		 1789 zebra_mac_t *zmac)
1790{
1791 zebra_neigh_t *n = NULL;
1792 struct listnode *node = NULL;
1793 char buf[ETHER_ADDR_STRLEN];
b6938a74 1794
f07e1c99 1795 if (IS_ZEBRA_DEBUG_VXLAN)
1796 zlog_debug("Processing neighbors on local MAC %s DEL, VNI %u",
1797 prefix_mac2str(&zmac->macaddr, buf, sizeof(buf)),
1798 zvni->vni);
1799
1800 /* Walk all local neighbors and mark as inactive and inform
1801 * BGP, if needed.
1802 * TBD: There is currently no handling for remote neighbors. We
1803 * don't expect them to exist, if they do, do we install the MAC
1804 * as a remote MAC and the neighbor as remote?
1805 */
b6938a74
MK		 1806 for (ALL_LIST_ELEMENTS_RO(zmac->neigh_list, node, n)) {
1807 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) {
1808 if (IS_ZEBRA_NEIGH_ACTIVE(n)) {
b6938a74 1809 ZEBRA_NEIGH_SET_INACTIVE(n);
f07e1c99 1810 n->loc_seq = 0;
996c9314
LB		 1811 zvni_neigh_send_del_to_client(zvni->vni, &n->ip,
1812 &n->emac, 0);
b6938a74 1813 }
b6938a74
MK		 1814 }
1815 }
1816}
1817
f07e1c99 1818/*
1819 * Process all neighbors associated with a MAC upon the MAC being remotely
1820 * learnt.
1821 */
2853fed6 1822static void zvni_process_neigh_on_remote_mac_add(zebra_vni_t *zvni,
b6938a74
MK		 1823 zebra_mac_t *zmac)
1824{
1825 zebra_neigh_t *n = NULL;
1826 struct listnode *node = NULL;
1827 char buf[ETHER_ADDR_STRLEN];
b6938a74 1828
f07e1c99 1829 if (IS_ZEBRA_DEBUG_VXLAN)
1830 zlog_debug("Processing neighbors on remote MAC %s ADD, VNI %u",
1831 prefix_mac2str(&zmac->macaddr, buf, sizeof(buf)),
1832 zvni->vni);
1833
1834 /* Walk all local neighbors and mark as inactive and inform
1835 * BGP, if needed.
1836 */
b6938a74
MK		 1837 for (ALL_LIST_ELEMENTS_RO(zmac->neigh_list, node, n)) {
1838 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) {
1839 if (IS_ZEBRA_NEIGH_ACTIVE(n)) {
b6938a74 1840 ZEBRA_NEIGH_SET_INACTIVE(n);
f07e1c99 1841 n->loc_seq = 0;
996c9314
LB		 1842 zvni_neigh_send_del_to_client(zvni->vni, &n->ip,
1843 &n->emac, 0);
b6938a74
MK		 1844 }
1845 }
1846 }
1847}
1848
f07e1c99 1849/*
1850 * Process all neighbors associated with a remote MAC upon the MAC being
1851 * deleted.
1852 */
2853fed6 1853static void zvni_process_neigh_on_remote_mac_del(zebra_vni_t *zvni,
b6938a74
MK		 1854 zebra_mac_t *zmac)
1855{
f07e1c99 1856 /* NOTE: Currently a NO-OP. */
b6938a74
MK		 1857}
1858
2232a77c 1859/*
1860 * Inform BGP about local neighbor addition.
13d60d35 1861 */
996c9314 1862static int zvni_neigh_send_add_to_client(vni_t vni, struct ipaddr *ip,
ead40654 1863 struct ethaddr *macaddr,
f07e1c99 1864 uint8_t neigh_flags,
1865 uint32_t seq)
13d60d35 1866{
d7c0a89a 1867 uint8_t flags = 0;
ead40654
MK		 1868
1869 if (CHECK_FLAG(neigh_flags, ZEBRA_NEIGH_DEF_GW))
1870 SET_FLAG(flags, ZEBRA_MACIP_TYPE_GW);
68e33151
CS		 1871 /* Set router flag (R-bit) based on local neigh entry add */
1872 if (CHECK_FLAG(neigh_flags, ZEBRA_NEIGH_ROUTER_FLAG))
1873 SET_FLAG(flags, ZEBRA_MACIP_TYPE_ROUTER_FLAG);
ead40654 1874
2853fed6 1875 return zvni_macip_send_msg_to_client(vni, macaddr, ip, flags,
f07e1c99 1876 seq, ZEBRA_MACIP_ADD);
2232a77c 1877}
13d60d35 1878
2232a77c 1879/*
1880 * Inform BGP about local neighbor deletion.
1881 */
996c9314 1882static int zvni_neigh_send_del_to_client(vni_t vni, struct ipaddr *ip,
d7c0a89a 1883 struct ethaddr *macaddr, uint8_t flags)
2232a77c 1884{
2853fed6 1885 return zvni_macip_send_msg_to_client(vni, macaddr, ip, flags,
f07e1c99 1886 0, ZEBRA_MACIP_DEL);
2232a77c 1887}
1888
1889/*
1890 * Install remote neighbor into the kernel.
1891 */
d62a17ae 1892static int zvni_neigh_install(zebra_vni_t *zvni, zebra_neigh_t *n)
2232a77c 1893{
d62a17ae 1894 struct zebra_if *zif;
1895 struct zebra_l2info_vxlan *vxl;
1896 struct interface *vlan_if;
f7dae312 1897#ifdef GNU_LINUX
68e33151 1898 uint8_t flags;
f7dae312 1899#endif
68e33151 1900 int ret = 0;
2232a77c 1901
d62a17ae 1902 if (!(n->flags & ZEBRA_NEIGH_REMOTE))
1903 return 0;
13d60d35 1904
d62a17ae 1905 zif = zvni->vxlan_if->info;
1906 if (!zif)
1907 return -1;
1908 vxl = &zif->l2info.vxl;
13d60d35 1909
2853fed6 1910 vlan_if = zvni_map_to_svi(vxl->access_vlan, zif->brslave_info.br_if);
d62a17ae 1911 if (!vlan_if)
1912 return -1;
68e33151
CS		 1913#ifdef GNU_LINUX
1914 flags = NTF_EXT_LEARNED;
1915 if (n->flags & ZEBRA_NEIGH_ROUTER_FLAG)
1916 flags |= NTF_ROUTER;
f07e1c99 1917 ZEBRA_NEIGH_SET_ACTIVE(n);
68e33151
CS		 1918 ret = kernel_add_neigh(vlan_if, &n->ip, &n->emac, flags);
1919#endif
1920 return ret;
2232a77c 1921}
13d60d35 1922
2232a77c 1923/*
1924 * Uninstall remote neighbor from the kernel.
1925 */
d62a17ae 1926static int zvni_neigh_uninstall(zebra_vni_t *zvni, zebra_neigh_t *n)
2232a77c 1927{
d62a17ae 1928 struct zebra_if *zif;
1929 struct zebra_l2info_vxlan *vxl;
1930 struct interface *vlan_if;
13d60d35 1931
d62a17ae 1932 if (!(n->flags & ZEBRA_NEIGH_REMOTE))
1933 return 0;
2232a77c 1934
d62a17ae 1935 if (!zvni->vxlan_if) {
9df414fe
QY		 1936 zlog_debug("VNI %u hash %p couldn't be uninstalled - no intf",
1937 zvni->vni, zvni);
d62a17ae 1938 return -1;
1939 }
2232a77c 1940
d62a17ae 1941 zif = zvni->vxlan_if->info;
1942 if (!zif)
1943 return -1;
1944 vxl = &zif->l2info.vxl;
2853fed6 1945 vlan_if = zvni_map_to_svi(vxl->access_vlan, zif->brslave_info.br_if);
d62a17ae 1946 if (!vlan_if)
1947 return -1;
2232a77c 1948
f07e1c99 1949 ZEBRA_NEIGH_SET_INACTIVE(n);
1950 n->loc_seq = 0;
d62a17ae 1951 return kernel_del_neigh(vlan_if, &n->ip);
13d60d35 1952}
1953
1954/*
2232a77c 1955 * Install neighbor hash entry - called upon access VLAN change.
13d60d35 1956 */
d62a17ae 1957static void zvni_install_neigh_hash(struct hash_backet *backet, void *ctxt)
13d60d35 1958{
d62a17ae 1959 zebra_neigh_t *n;
1960 struct neigh_walk_ctx *wctx = ctxt;
13d60d35 1961
d62a17ae 1962 n = (zebra_neigh_t *)backet->data;
13d60d35 1963
d62a17ae 1964 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE))
1965 zvni_neigh_install(wctx->zvni, n);
2232a77c 1966}
13d60d35 1967
1a98c087
MK		 1968/* Get the VRR interface for SVI if any */
1969struct interface *zebra_get_vrr_intf_for_svi(struct interface *ifp)
1970{
1971 struct zebra_vrf *zvrf = NULL;
1972 struct interface *tmp_if = NULL;
1973 struct zebra_if *zif = NULL;
1a98c087
MK		 1974
1975 zvrf = vrf_info_lookup(ifp->vrf_id);
1976 assert(zvrf);
1977
451fda4f 1978 FOR_ALL_INTERFACES (zvrf->vrf, tmp_if) {
1a98c087
MK		 1979 zif = tmp_if->info;
1980 if (!zif)
1981 continue;
1982
1983 if (!IS_ZEBRA_IF_MACVLAN(tmp_if))
1984 continue;
1985
1986 if (zif->link == ifp)
1987 return tmp_if;
1988 }
1989
1990 return NULL;
1991}
1992
1993static int zvni_del_macip_for_intf(struct interface *ifp, zebra_vni_t *zvni)
1994{
1a98c087
MK		 1995 struct listnode *cnode = NULL, *cnnode = NULL;
1996 struct connected *c = NULL;
1997 struct ethaddr macaddr;
1998
1a98c087
MK		 1999 memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN);
2000
2001 for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) {
2002 struct ipaddr ip;
2003
2004 memset(&ip, 0, sizeof(struct ipaddr));
2005 if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL))
2006 continue;
2007
2008 if (c->address->family == AF_INET) {
2009 ip.ipa_type = IPADDR_V4;
2010 memcpy(&(ip.ipaddr_v4), &(c->address->u.prefix4),
2011 sizeof(struct in_addr));
2012 } else if (c->address->family == AF_INET6) {
2013 ip.ipa_type = IPADDR_V6;
2014 memcpy(&(ip.ipaddr_v6), &(c->address->u.prefix6),
2015 sizeof(struct in6_addr));
2016 } else {
2017 continue;
2018 }
2019
2020 zvni_gw_macip_del(ifp, zvni, &ip);
2021 }
2022
2023 return 0;
2024}
2025
2026static int zvni_add_macip_for_intf(struct interface *ifp, zebra_vni_t *zvni)
2027{
1a98c087
MK		 2028 struct listnode *cnode = NULL, *cnnode = NULL;
2029 struct connected *c = NULL;
2030 struct ethaddr macaddr;
2031
1a98c087
MK		 2032 memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN);
2033
2034 for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) {
2035 struct ipaddr ip;
2036
2037 memset(&ip, 0, sizeof(struct ipaddr));
2038 if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL))
2039 continue;
2040
2041 if (c->address->family == AF_INET) {
2042 ip.ipa_type = IPADDR_V4;
2043 memcpy(&(ip.ipaddr_v4), &(c->address->u.prefix4),
2044 sizeof(struct in_addr));
2045 } else if (c->address->family == AF_INET6) {
2046 ip.ipa_type = IPADDR_V6;
2047 memcpy(&(ip.ipaddr_v6), &(c->address->u.prefix6),
2048 sizeof(struct in6_addr));
2049 } else {
2050 continue;
2051 }
2052
2053 zvni_gw_macip_add(ifp, zvni, &macaddr, &ip);
2054 }
31310b25
MK		 2055 return 0;
2056}
2057
2058
996c9314 2059static int zvni_advertise_subnet(zebra_vni_t *zvni, struct interface *ifp,
31310b25
MK		 2060 int advertise)
2061{
2062 struct listnode *cnode = NULL, *cnnode = NULL;
2063 struct connected *c = NULL;
2064 struct ethaddr macaddr;
2065
2066 memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN);
2067
2068 for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) {
2069 struct prefix p;
1a98c087 2070
31310b25
MK		 2071 memcpy(&p, c->address, sizeof(struct prefix));
2072
2073 /* skip link local address */
2074 if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6))
2075 continue;
2076
2077 apply_mask(&p);
2078 if (advertise)
2079 ip_prefix_send_to_client(ifp->vrf_id, &p,
996c9314 2080 ZEBRA_IP_PREFIX_ROUTE_ADD);
31310b25
MK		 2081 else
2082 ip_prefix_send_to_client(ifp->vrf_id, &p,
2083 ZEBRA_IP_PREFIX_ROUTE_DEL);
2084 }
1a98c087
MK		 2085 return 0;
2086}
2087
2088/*
2089 * zvni_gw_macip_add_to_client
2090 */
2091static int zvni_gw_macip_add(struct interface *ifp, zebra_vni_t *zvni,
2092 struct ethaddr *macaddr, struct ipaddr *ip)
2093{
1a98c087
MK		 2094 char buf[ETHER_ADDR_STRLEN];
2095 char buf2[INET6_ADDRSTRLEN];
b7cfce93
MK		 2096 zebra_neigh_t *n = NULL;
2097 zebra_mac_t *mac = NULL;
2098 struct zebra_if *zif = NULL;
2099 struct zebra_l2info_vxlan *vxl = NULL;
2100
1a98c087
MK		 2101 zif = zvni->vxlan_if->info;
2102 if (!zif)
2103 return -1;
2104
2105 vxl = &zif->l2info.vxl;
2106
2107 mac = zvni_mac_lookup(zvni, macaddr);
2108 if (!mac) {
2109 mac = zvni_mac_add(zvni, macaddr);
2110 if (!mac) {
e914ccbe 2111 flog_err(EC_ZEBRA_MAC_ADD_FAILED,
1c50c1c0
QY		 2112 "Failed to add MAC %s intf %s(%u) VID %u",
2113 prefix_mac2str(macaddr, buf, sizeof(buf)),
2114 ifp->name, ifp->ifindex, vxl->access_vlan);
1a98c087
MK		 2115 return -1;
2116 }
2117 }
2118
2119 /* Set "local" forwarding info. */
2120 SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL);
2121 SET_FLAG(mac->flags, ZEBRA_MAC_AUTO);
ead40654 2122 SET_FLAG(mac->flags, ZEBRA_MAC_DEF_GW);
1a98c087
MK		 2123 memset(&mac->fwd_info, 0, sizeof(mac->fwd_info));
2124 mac->fwd_info.local.ifindex = ifp->ifindex;
2125 mac->fwd_info.local.vid = vxl->access_vlan;
2126
2127 n = zvni_neigh_lookup(zvni, ip);
2128 if (!n) {
b6938a74 2129 n = zvni_neigh_add(zvni, ip, macaddr);
1a98c087 2130 if (!n) {
af4c2728 2131 flog_err(
e914ccbe 2132 EC_ZEBRA_MAC_ADD_FAILED,
2853fed6 2133 "Failed to add neighbor %s MAC %s intf %s(%u) -> VNI %u",
2134 ipaddr2str(ip, buf2, sizeof(buf2)),
0af35d90 2135 prefix_mac2str(macaddr, buf, sizeof(buf)),
1a98c087
MK		 2136 ifp->name, ifp->ifindex, zvni->vni);
2137 return -1;
2138 }
2139 }
2140
2141 /* Set "local" forwarding info. */
2142 SET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL);
ead40654 2143 SET_FLAG(n->flags, ZEBRA_NEIGH_DEF_GW);
1a8c5c38 2144 ZEBRA_NEIGH_SET_ACTIVE(n);
68e33151
CS		 2145 /* Set Router flag (R-bit) */
2146 if (ip->ipa_type == IPADDR_V6)
2147 SET_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG);
1a98c087
MK		 2148 memcpy(&n->emac, macaddr, ETH_ALEN);
2149 n->ifindex = ifp->ifindex;
2150
ead40654
MK		 2151 /* Only advertise in BGP if the knob is enabled */
2152 if (!advertise_gw_macip_enabled(zvni))
2153 return 0;
2154
1a98c087
MK		 2155 if (IS_ZEBRA_DEBUG_VXLAN)
2156 zlog_debug(
68e33151 2157 "SVI %s(%u) L2-VNI %u, sending GW MAC %s IP %s add to BGP with flags 0x%x",
2853fed6 2158 ifp->name, ifp->ifindex, zvni->vni,
1e9f448f 2159 prefix_mac2str(macaddr, buf, sizeof(buf)),
68e33151 2160 ipaddr2str(ip, buf2, sizeof(buf2)), n->flags);
1a98c087 2161
f07e1c99 2162 zvni_neigh_send_add_to_client(zvni->vni, ip, macaddr,
2163 n->flags, n->loc_seq);
1a98c087
MK		 2164
2165 return 0;
2166}
2167
2168/*
2169 * zvni_gw_macip_del_from_client
2170 */
2171static int zvni_gw_macip_del(struct interface *ifp, zebra_vni_t *zvni,
2172 struct ipaddr *ip)
2173{
0af35d90 2174 char buf1[ETHER_ADDR_STRLEN];
1a98c087 2175 char buf2[INET6_ADDRSTRLEN];
b7cfce93
MK		 2176 zebra_neigh_t *n = NULL;
2177 zebra_mac_t *mac = NULL;
2178
1a98c087
MK		 2179 /* If the neigh entry is not present nothing to do*/
2180 n = zvni_neigh_lookup(zvni, ip);
2181 if (!n)
2182 return 0;
2183
2184 /* mac entry should be present */
2185 mac = zvni_mac_lookup(zvni, &n->emac);
0af35d90 2186 if (!mac) {
0437e105 2187 zlog_debug("MAC %s doesn't exist for neigh %s on VNI %u",
9df414fe
QY		 2188 prefix_mac2str(&n->emac, buf1, sizeof(buf1)),
2189 ipaddr2str(ip, buf2, sizeof(buf2)), zvni->vni);
0af35d90
RW		 2190 return -1;
2191 }
1a98c087
MK		 2192
2193 /* If the entry is not local nothing to do*/
2194 if (!CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL))
2195 return -1;
2196
ead40654 2197 /* only need to delete the entry from bgp if we sent it before */
01a6143b 2198 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314
LB		 2199 zlog_debug(
2200 "%u:SVI %s(%u) VNI %u, sending GW MAC %s IP %s del to BGP",
2201 ifp->vrf_id, ifp->name, ifp->ifindex, zvni->vni,
ee496c3b 2202 prefix_mac2str(&(n->emac), buf1, sizeof(buf1)),
996c9314 2203 ipaddr2str(ip, buf2, sizeof(buf2)));
01a6143b
MK		 2204
2205 /* Remove neighbor from BGP. */
2206 zvni_neigh_send_del_to_client(zvni->vni, &n->ip, &n->emac,
2207 ZEBRA_MACIP_TYPE_GW);
1a98c087
MK		 2208
2209 /* Delete this neighbor entry. */
2210 zvni_neigh_del(zvni, n);
2211
2212 /* see if the mac needs to be deleted as well*/
1e9f448f 2213 if (mac)
fe697c6b 2214 zvni_deref_ip2mac(zvni, mac);
1a98c087
MK		 2215
2216 return 0;
2217}
2218
2219static void zvni_gw_macip_del_for_vni_hash(struct hash_backet *backet,
2853fed6 2220 void *ctxt)
1a98c087
MK		 2221{
2222 zebra_vni_t *zvni = NULL;
2223 struct zebra_if *zif = NULL;
2224 struct zebra_l2info_vxlan zl2_info;
2225 struct interface *vlan_if = NULL;
2226 struct interface *vrr_if = NULL;
b5ebdc9b 2227 struct interface *ifp;
1a98c087
MK		 2228
2229 /* Add primary SVI MAC*/
2230 zvni = (zebra_vni_t *)backet->data;
1a98c087 2231
b5ebdc9b 2232 ifp = zvni->vxlan_if;
2233 if (!ifp)
2234 return;
2235 zif = ifp->info;
2236
2237 /* If down or not mapped to a bridge, we're done. */
b682f6de 2238 if (!if_is_operative(ifp) || !zif->brslave_info.br_if)
b5ebdc9b 2239 return;
2240
1a98c087
MK		 2241 zl2_info = zif->l2info.vxl;
2242
996c9314
LB		 2243 vlan_if =
2244 zvni_map_to_svi(zl2_info.access_vlan, zif->brslave_info.br_if);
1a98c087
MK		 2245 if (!vlan_if)
2246 return;
2247
2248 /* Del primary MAC-IP */
2249 zvni_del_macip_for_intf(vlan_if, zvni);
2250
2251 /* Del VRR MAC-IP - if any*/
2252 vrr_if = zebra_get_vrr_intf_for_svi(vlan_if);
2253 if (vrr_if)
2254 zvni_del_macip_for_intf(vrr_if, zvni);
2255
2256 return;
2257}
2258
2259static void zvni_gw_macip_add_for_vni_hash(struct hash_backet *backet,
2853fed6 2260 void *ctxt)
1a98c087
MK		 2261{
2262 zebra_vni_t *zvni = NULL;
2263 struct zebra_if *zif = NULL;
2264 struct zebra_l2info_vxlan zl2_info;
2265 struct interface *vlan_if = NULL;
2266 struct interface *vrr_if = NULL;
b5ebdc9b 2267 struct interface *ifp = NULL;
1a98c087
MK		 2268
2269 zvni = (zebra_vni_t *)backet->data;
1a98c087 2270
b5ebdc9b 2271 ifp = zvni->vxlan_if;
2272 if (!ifp)
2273 return;
2274 zif = ifp->info;
2275
2276 /* If down or not mapped to a bridge, we're done. */
b682f6de 2277 if (!if_is_operative(ifp) || !zif->brslave_info.br_if)
b5ebdc9b 2278 return;
1a98c087
MK		 2279 zl2_info = zif->l2info.vxl;
2280
996c9314
LB		 2281 vlan_if =
2282 zvni_map_to_svi(zl2_info.access_vlan, zif->brslave_info.br_if);
1a98c087
MK		 2283 if (!vlan_if)
2284 return;
2285
1a98c087
MK		 2286 /* Add primary SVI MAC-IP */
2287 zvni_add_macip_for_intf(vlan_if, zvni);
2288
2289 /* Add VRR MAC-IP - if any*/
2290 vrr_if = zebra_get_vrr_intf_for_svi(vlan_if);
2291 if (vrr_if)
2292 zvni_add_macip_for_intf(vrr_if, zvni);
2293
2294 return;
2295}
2296
ee69da27
MK		 2297static int zvni_local_neigh_update(zebra_vni_t *zvni,
2298 struct interface *ifp,
2299 struct ipaddr *ip,
68e33151 2300 struct ethaddr *macaddr,
a37f4598 2301 bool is_router)
ee69da27
MK		 2302{
2303 char buf[ETHER_ADDR_STRLEN];
2304 char buf2[INET6_ADDRSTRLEN];
e22a946a 2305 struct zebra_vrf *zvrf;
ee69da27
MK		 2306 zebra_neigh_t *n = NULL;
2307 zebra_mac_t *zmac = NULL, *old_zmac = NULL;
f07e1c99 2308 uint32_t old_mac_seq = 0, mac_new_seq = 0;
2309 bool upd_mac_seq = false;
2310 bool neigh_mac_change = false;
e22a946a
CS		 2311 bool neigh_on_hold = false;
2312 bool neigh_was_remote = false;
2313 struct in_addr vtep_ip = {.s_addr = 0};
2314 struct timeval elapsed = {0, 0};
ee69da27 2315
f07e1c99 2316 /* Check if the MAC exists. */
ee69da27
MK		 2317 zmac = zvni_mac_lookup(zvni, macaddr);
2318 if (!zmac) {
f07e1c99 2319 /* create a dummy MAC if the MAC is not already present */
ee69da27
MK		 2320 if (IS_ZEBRA_DEBUG_VXLAN)
2321 zlog_debug(
2322 "AUTO MAC %s created for neigh %s on VNI %u",
2323 prefix_mac2str(macaddr, buf, sizeof(buf)),
2324 ipaddr2str(ip, buf2, sizeof(buf2)), zvni->vni);
2325
2326 zmac = zvni_mac_add(zvni, macaddr);
2327 if (!zmac) {
9df414fe
QY		 2328 zlog_debug("Failed to add MAC %s VNI %u",
2329 prefix_mac2str(macaddr, buf, sizeof(buf)),
2330 zvni->vni);
ee69da27
MK		 2331 return -1;
2332 }
2333
2334 memset(&zmac->fwd_info, 0, sizeof(zmac->fwd_info));
2335 memset(&zmac->flags, 0, sizeof(uint32_t));
2336 SET_FLAG(zmac->flags, ZEBRA_MAC_AUTO);
f07e1c99 2337 } else {
2338 if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_REMOTE)) {
2339 /*
2340 * We don't change the MAC to local upon a neighbor
2341 * learn event, we wait for the explicit local MAC
2342 * learn. However, we have to compute its sequence
2343 * number in preparation for when it actually turns
2344 * local.
2345 */
2346 upd_mac_seq = true;
2347 }
ee69da27
MK		 2348 }
2349
e22a946a
CS		 2350 zvrf = vrf_info_lookup(zvni->vrf_id);
2351 if (!zvrf)
2352 return -1;
2353
f07e1c99 2354 /* Check if the neighbor exists. */
ee69da27 2355 n = zvni_neigh_lookup(zvni, ip);
f07e1c99 2356 if (!n) {
2357 /* New neighbor - create */
2358 n = zvni_neigh_add(zvni, ip, macaddr);
2359 if (!n) {
2360 flog_err(
e914ccbe 2361 EC_ZEBRA_MAC_ADD_FAILED,
f07e1c99 2362 "Failed to add neighbor %s MAC %s intf %s(%u) -> VNI %u",
2363 ipaddr2str(ip, buf2, sizeof(buf2)),
2364 prefix_mac2str(macaddr, buf, sizeof(buf)),
2365 ifp->name, ifp->ifindex, zvni->vni);
2366 return -1;
2367 }
2368 /* Set "local" forwarding info. */
2369 SET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL);
2370 n->ifindex = ifp->ifindex;
2371 } else {
ee69da27 2372 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) {
66e37987 2373 bool mac_different;
2374 bool cur_is_router;
2375
2376 /* Note any changes and see if of interest to BGP. */
2377 mac_different = (memcmp(n->emac.octet,
2378 macaddr->octet, ETH_ALEN) != 0) ? 1 : 0;
2379 cur_is_router = !!CHECK_FLAG(n->flags,
2380 ZEBRA_NEIGH_ROUTER_FLAG);
2381 if (!mac_different && is_router == cur_is_router) {
ee69da27 2382 n->ifindex = ifp->ifindex;
66e37987 2383 return 0;
2384 }
ee69da27 2385
66e37987 2386 if (!mac_different) {
e22a946a
CS		 2387 bool is_neigh_freezed = false;
2388
66e37987 2389 /* Only the router flag has changed. */
2390 if (is_router)
2391 SET_FLAG(n->flags,
2392 ZEBRA_NEIGH_ROUTER_FLAG);
2393 else
2394 UNSET_FLAG(n->flags,
2395 ZEBRA_NEIGH_ROUTER_FLAG);
ee69da27 2396
e22a946a
CS		 2397 /* Neigh is in freeze state and freeze action
2398 * is enabled, do not send update to client.
2399 */
2400 is_neigh_freezed = (zvrf->dup_addr_detect &&
2401 zvrf->dad_freeze &&
2402 CHECK_FLAG(n->flags,
2403 ZEBRA_NEIGH_DUPLICATE));
2404
2405 if (IS_ZEBRA_NEIGH_ACTIVE(n) &&
2406 !is_neigh_freezed)
66e37987 2407 return zvni_neigh_send_add_to_client(
2408 zvni->vni, ip, macaddr,
2409 n->flags, n->loc_seq);
2410 return 0;
2411 }
2412
2413 /* The MAC has changed, need to issue a delete
2414 * first as this means a different MACIP route.
2415 * Also, need to do some unlinking/relinking.
2416 * We also need to update the MAC's sequence number
2417 * in different situations.
2418 */
2419 if (IS_ZEBRA_NEIGH_ACTIVE(n))
2420 zvni_neigh_send_del_to_client(zvni->vni, &n->ip,
2421 &n->emac, 0);
2422 old_zmac = zvni_mac_lookup(zvni, &n->emac);
2423 if (old_zmac) {
2424 old_mac_seq = CHECK_FLAG(old_zmac->flags,
2425 ZEBRA_MAC_REMOTE) ?
2426 old_zmac->rem_seq : old_zmac->loc_seq;
2427 neigh_mac_change = upd_mac_seq = true;
2428 listnode_delete(old_zmac->neigh_list, n);
2429 zvni_deref_ip2mac(zvni, old_zmac);
29c2ce7c 2430 }
ee69da27 2431
66e37987 2432 /* Update the forwarding info. */
2433 n->ifindex = ifp->ifindex;
2434 memcpy(&n->emac, macaddr, ETH_ALEN);
2435
2436 /* Link to new MAC */
2437 listnode_add_sort(zmac->neigh_list, n);
f07e1c99 2438 } else if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) {
2439 /*
2440 * Neighbor has moved from remote to local. Its
2441 * MAC could have also changed as part of the move.
2442 */
ee69da27
MK		 2443 if (memcmp(n->emac.octet, macaddr->octet,
2444 ETH_ALEN) != 0) {
2445 old_zmac = zvni_mac_lookup(zvni, &n->emac);
2446 if (old_zmac) {
9df2b997 2447 old_mac_seq = CHECK_FLAG(
2448 old_zmac->flags,
2449 ZEBRA_MAC_REMOTE) ?
f07e1c99 2450 old_zmac->rem_seq :
2451 old_zmac->loc_seq;
2452 neigh_mac_change = upd_mac_seq = true;
9fc1522c
DS		 2453 listnode_delete(old_zmac->neigh_list,
2454 n);
fe697c6b 2455 zvni_deref_ip2mac(zvni, old_zmac);
ee69da27
MK		 2456 }
2457
2458 /* Link to new MAC */
2459 memcpy(&n->emac, macaddr, ETH_ALEN);
2460 listnode_add_sort(zmac->neigh_list, n);
2461 }
e22a946a
CS		 2462 /* Based on Mobility event Scenario-B from the
2463 * draft, neigh's previous state was remote treat this
2464 * event for DAD.
2465 */
2466 neigh_was_remote = true;
2467 vtep_ip = n->r_vtep_ip;
ee69da27
MK		 2468 /* Mark appropriately */
2469 UNSET_FLAG(n->flags, ZEBRA_NEIGH_REMOTE);
2470 n->r_vtep_ip.s_addr = 0;
2471 SET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL);
2472 n->ifindex = ifp->ifindex;
2473 }
f07e1c99 2474 }
2475
2476 /* If MAC was previously remote, or the neighbor had a different
2477 * MAC earlier, recompute the sequence number.
2478 */
2479 if (upd_mac_seq) {
2480 uint32_t seq1, seq2;
2481
2482 seq1 = CHECK_FLAG(zmac->flags, ZEBRA_MAC_REMOTE) ?
2483 zmac->rem_seq + 1 : zmac->loc_seq;
2484 seq2 = neigh_mac_change ? old_mac_seq + 1 : 0;
2485 mac_new_seq = zmac->loc_seq < MAX(seq1, seq2) ?
2486 MAX(seq1, seq2) : zmac->loc_seq;
ee69da27
MK		 2487 }
2488
e22a946a 2489 /* Mark Router flag (R-bit) */
a37f4598 2490 if (is_router)
54c17425
CS		 2491 SET_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG);
2492 else
2493 UNSET_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG);
2494
e22a946a
CS		 2495 /* Check old and/or new MAC detected as duplicate mark
2496 * the neigh as duplicate
2497 */
2498 if (zebra_vxlan_ip_inherit_dad_from_mac(zvrf, old_zmac, zmac, n)) {
2499 flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED,
2500 "VNI %u: MAC %s IP %s detected as duplicate during local update, inherit duplicate from MAC",
2501 zvni->vni,
2502 prefix_mac2str(macaddr, buf, sizeof(buf)),
2503 ipaddr2str(&n->ip, buf2, sizeof(buf2)));
2504 }
2505
2506 /* Duplicate Address Detection (DAD) is enabled.
2507 * Based on Mobility event Scenario-B from the
2508 * draft, IP/Neigh's MAC binding changed and
2509 * neigh's previous state was remote, trigger DAD.
2510 */
2511 if (zvrf->dup_addr_detect) {
2512 /* Neigh could have inherit dup flag or IP DAD
2513 * detected earlier
2514 */
2515 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DUPLICATE)) {
2516 if (IS_ZEBRA_DEBUG_VXLAN)
2517 zlog_debug(
2518 "%s: duplicate addr MAC %s IP %s skip update to client, learn count %u recover time %u",
2519 __PRETTY_FUNCTION__,
2520 prefix_mac2str(macaddr,
2521 buf, sizeof(buf)),
2522 ipaddr2str(ip, buf2, sizeof(buf2)),
2523 n->dad_count,
2524 zvrf->dad_freeze_time);
2525
2526 /* In case of warn-only, inform client and update neigh
2527 */
2528 if (zvrf->dad_freeze)
2529 neigh_on_hold = true;
2530
2531 goto send_notif;
2532 }
c80a972c 2533
e22a946a
CS		 2534 /* MAC binding changed and previous state was remote */
2535 if (!(neigh_mac_change && neigh_was_remote))
2536 goto send_notif;
2537
2538 /* First check if neigh is already marked duplicate via
2539 * MAC dup detection, before firing M Seconds
2540 * duplicate detection.
2541 * RFC-7432: A PE/VTEP that detects a MAC mobility
2542 * event via local learning starts an M-second timer.
2543 *
2544 * Check if detection time (M-secs) expired.
2545 * Reset learn count and detection start time.
2546 */
2547 monotime_since(&n->detect_start_time, &elapsed);
2548 if (n->dad_count == 0 || elapsed.tv_sec > zvrf->dad_time) {
2549 if (IS_ZEBRA_DEBUG_VXLAN)
2550 zlog_debug("%s: duplicate addr MAC %s detection time passed, reset learn count %u",
2551 __PRETTY_FUNCTION__,
2552 prefix_mac2str(macaddr, buf,
2553 sizeof(buf)),
2554 n->dad_count);
2555 n->dad_count = 0;
2556 /* Start dup. detection time */
2557 monotime(&n->detect_start_time);
2558 }
2559
2560 n->dad_count++;
2561
2562 if (n->dad_count >= zvrf->dad_max_moves) {
2563 flog_warn(EC_ZEBRA_DUP_IP_DETECTED,
2564 "VNI %u: MAC %s IP %s detected as duplicate during local update, last VTEP %s",
2565 zvni->vni,
2566 prefix_mac2str(&n->emac, buf, sizeof(buf)),
2567 ipaddr2str(ip, buf2, sizeof(buf2)),
2568 inet_ntoa(vtep_ip));
2569
2570 /* Mark Duplicate */
2571 SET_FLAG(n->flags, ZEBRA_NEIGH_DUPLICATE);
2572
2573 /* Capture Duplicate detection time */
2574 n->dad_dup_detect_time = monotime(NULL);
2575
c80a972c
CS		 2576 /* Start auto recovery timer for this IP */
2577 THREAD_OFF(n->dad_ip_auto_recovery_timer);
2578 if (zvrf->dad_freeze && zvrf->dad_freeze_time) {
2579 if (IS_ZEBRA_DEBUG_VXLAN)
2580 zlog_debug(
2581 "%s: duplicate addr MAC %s IP %s flags 0x%x auto recovery time %u start",
2582 __PRETTY_FUNCTION__,
2583 prefix_mac2str(macaddr, buf,
2584 sizeof(buf)),
2585 ipaddr2str(ip, buf2, sizeof(buf2)),
2586 n->flags,
2587 zvrf->dad_freeze_time);
2588
2589 thread_add_timer(zebrad.master,
2590 zebra_vxlan_dad_ip_auto_recovery_exp,
2591 n,
2592 zvrf->dad_freeze_time,
2593 &n->dad_ip_auto_recovery_timer);
2594 }
2595
e22a946a
CS		 2596 if (zvrf->dad_freeze)
2597 neigh_on_hold = true;
2598 }
2599 }
2600
2601send_notif:
c80a972c 2602
ee69da27 2603 /* Before we program this in BGP, we need to check if MAC is locally
f07e1c99 2604 * learnt. If not, force neighbor to be inactive and reset its seq.
ee69da27
MK		 2605 */
2606 if (!CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) {
8b44d564 2607 ZEBRA_NEIGH_SET_INACTIVE(n);
f07e1c99 2608 n->loc_seq = 0;
2609 zmac->loc_seq = mac_new_seq;
ee69da27
MK		 2610 return 0;
2611 }
2612
f07e1c99 2613 /* If the MAC's sequence number has changed, inform the MAC and all
2614 * neighbors associated with the MAC to BGP, else just inform this
2615 * neighbor.
2616 */
2617 if (upd_mac_seq && zmac->loc_seq != mac_new_seq) {
29c2ce7c 2618 if (IS_ZEBRA_DEBUG_VXLAN)
f07e1c99 2619 zlog_debug("Seq changed for MAC %s VNI %u - old %u new %u",
2620 prefix_mac2str(macaddr, buf, sizeof(buf)),
2621 zvni->vni, zmac->loc_seq, mac_new_seq);
2622 zmac->loc_seq = mac_new_seq;
2623 if (zvni_mac_send_add_to_client(zvni->vni, macaddr,
2624 zmac->flags, zmac->loc_seq))
2625 return -1;
2626 zvni_process_neigh_on_local_mac_change(zvni, zmac, 1);
29c2ce7c
CS		 2627 return 0;
2628 }
2629
ee69da27 2630 ZEBRA_NEIGH_SET_ACTIVE(n);
f07e1c99 2631 n->loc_seq = zmac->loc_seq;
ee69da27 2632
e22a946a
CS		 2633 if (!neigh_on_hold)
2634 return zvni_neigh_send_add_to_client(zvni->vni, ip, macaddr,
f07e1c99 2635 n->flags, n->loc_seq);
e22a946a 2636 return 0;
ee69da27
MK		 2637}
2638
2639static int zvni_remote_neigh_update(zebra_vni_t *zvni,
2640 struct interface *ifp,
2641 struct ipaddr *ip,
2642 struct ethaddr *macaddr,
2643 uint16_t state)
2644{
2645 char buf[ETHER_ADDR_STRLEN];
2646 char buf2[INET6_ADDRSTRLEN];
2647 zebra_neigh_t *n = NULL;
2648 zebra_mac_t *zmac = NULL;
2649
2650 /* If the neighbor is unknown, there is no further action. */
2651 n = zvni_neigh_lookup(zvni, ip);
2652 if (!n)
2653 return 0;
2654
2655 /* If a remote entry, see if it needs to be refreshed */
2656 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) {
e9d2cbde 2657#ifdef GNU_LINUX
ee69da27
MK		 2658 if (state & NUD_STALE)
2659 zvni_neigh_install(zvni, n);
e9d2cbde 2660#endif
ee69da27
MK		 2661 } else {
2662 /* We got a "remote" neighbor notification for an entry
2663 * we think is local. This can happen in a multihoming
2664 * scenario - but only if the MAC is already "remote".
2665 * Just mark our entry as "remote".
2666 */
2667 zmac = zvni_mac_lookup(zvni, macaddr);
2668 if (!zmac || !CHECK_FLAG(zmac->flags, ZEBRA_MAC_REMOTE)) {
9df414fe 2669 zlog_debug(
43e52561
QY		 2670 "Ignore remote neigh %s (MAC %s) on L2-VNI %u - MAC unknown or local",
2671 ipaddr2str(&n->ip, buf2, sizeof(buf2)),
2672 prefix_mac2str(macaddr, buf, sizeof(buf)),
2673 zvni->vni);
ee69da27
MK		 2674 return -1;
2675 }
2676
2677 UNSET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL);
2678 SET_FLAG(n->flags, ZEBRA_NEIGH_REMOTE);
4fd5ea4b 2679 ZEBRA_NEIGH_SET_ACTIVE(n);
ee69da27
MK		 2680 n->r_vtep_ip = zmac->fwd_info.r_vtep_ip;
2681 }
2682
2683 return 0;
2684}
2685
2232a77c 2686/*
2687 * Make hash key for MAC.
2688 */
d62a17ae 2689static unsigned int mac_hash_keymake(void *p)
2232a77c 2690{
d62a17ae 2691 zebra_mac_t *pmac = p;
25331def
DS		 2692 const void *pnt = (void *)pmac->macaddr.octet;
2693
ff8b7eb8 2694 return jhash(pnt, ETH_ALEN, 0xa5a5a55a);
2232a77c 2695}
13d60d35 2696
2232a77c 2697/*
2698 * Compare two MAC addresses.
2699 */
74df8d6d 2700static bool mac_cmp(const void *p1, const void *p2)
2232a77c 2701{
d62a17ae 2702 const zebra_mac_t *pmac1 = p1;
2703 const zebra_mac_t *pmac2 = p2;
2232a77c 2704
d62a17ae 2705 if (pmac1 == NULL && pmac2 == NULL)
74df8d6d 2706 return true;
2232a77c 2707
d62a17ae 2708 if (pmac1 == NULL || pmac2 == NULL)
74df8d6d 2709 return false;
2232a77c 2710
996c9314 2711 return (memcmp(pmac1->macaddr.octet, pmac2->macaddr.octet, ETH_ALEN)
d62a17ae 2712 == 0);
2232a77c 2713}
2714
2715/*
2716 * Callback to allocate MAC hash entry.
2717 */
d62a17ae 2718static void *zvni_mac_alloc(void *p)
2232a77c 2719{
d62a17ae 2720 const zebra_mac_t *tmp_mac = p;
2721 zebra_mac_t *mac;
2232a77c 2722
d62a17ae 2723 mac = XCALLOC(MTYPE_MAC, sizeof(zebra_mac_t));
2724 *mac = *tmp_mac;
2232a77c 2725
d62a17ae 2726 return ((void *)mac);
2232a77c 2727}
2728
2729/*
2730 * Add MAC entry.
2731 */
d62a17ae 2732static zebra_mac_t *zvni_mac_add(zebra_vni_t *zvni, struct ethaddr *macaddr)
2232a77c 2733{
d62a17ae 2734 zebra_mac_t tmp_mac;
2735 zebra_mac_t *mac = NULL;
2232a77c 2736
d62a17ae 2737 memset(&tmp_mac, 0, sizeof(zebra_mac_t));
ff8b7eb8 2738 memcpy(&tmp_mac.macaddr, macaddr, ETH_ALEN);
d62a17ae 2739 mac = hash_get(zvni->mac_table, &tmp_mac, zvni_mac_alloc);
2740 assert(mac);
2232a77c 2741
b6938a74 2742 mac->neigh_list = list_new();
27fa3398 2743 mac->neigh_list->cmp = neigh_list_cmp;
b6938a74 2744
d62a17ae 2745 return mac;
2232a77c 2746}
2747
2748/*
2749 * Delete MAC entry.
2750 */
d62a17ae 2751static int zvni_mac_del(zebra_vni_t *zvni, zebra_mac_t *mac)
2232a77c 2752{
d62a17ae 2753 zebra_mac_t *tmp_mac;
2232a77c 2754
6a154c88 2755 list_delete(&mac->neigh_list);
b6938a74 2756
d62a17ae 2757 /* Free the VNI hash entry and allocated memory. */
2758 tmp_mac = hash_release(zvni->mac_table, mac);
2759 if (tmp_mac)
2760 XFREE(MTYPE_MAC, tmp_mac);
2232a77c 2761
d62a17ae 2762 return 0;
2232a77c 2763}
2764
2765/*
2766 * Free MAC hash entry (callback)
2767 */
b1599bb6 2768static void zvni_mac_del_hash_entry(struct hash_backet *backet, void *arg)
2232a77c 2769{
d62a17ae 2770 struct mac_walk_ctx *wctx = arg;
2771 zebra_mac_t *mac = backet->data;
2232a77c 2772
d62a17ae 2773 if (((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_LOCAL))
2774 || ((wctx->flags & DEL_REMOTE_MAC)
2775 && (mac->flags & ZEBRA_MAC_REMOTE))
2776 || ((wctx->flags & DEL_REMOTE_MAC_FROM_VTEP)
2777 && (mac->flags & ZEBRA_MAC_REMOTE)
2778 && IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip,
2779 &wctx->r_vtep_ip))) {
2780 if (wctx->upd_client && (mac->flags & ZEBRA_MAC_LOCAL)) {
996c9314 2781 zvni_mac_send_del_to_client(wctx->zvni->vni,
e98e4b88 2782 &mac->macaddr);
d62a17ae 2783 }
2232a77c 2784
d62a17ae 2785 if (wctx->uninstall)
d63c1b18 2786 zvni_mac_uninstall(wctx->zvni, mac);
2232a77c 2787
b1599bb6 2788 zvni_mac_del(wctx->zvni, mac);
d62a17ae 2789 }
2232a77c 2790
b1599bb6 2791 return;
2232a77c 2792}
2793
2794/*
2795 * Delete all MAC entries from specific VTEP for a particular VNI.
2796 */
d62a17ae 2797static void zvni_mac_del_from_vtep(zebra_vni_t *zvni, int uninstall,
2798 struct in_addr *r_vtep_ip)
2232a77c 2799{
d62a17ae 2800 struct mac_walk_ctx wctx;
2232a77c 2801
d62a17ae 2802 if (!zvni->mac_table)
2803 return;
2232a77c 2804
d62a17ae 2805 memset(&wctx, 0, sizeof(struct mac_walk_ctx));
2806 wctx.zvni = zvni;
2807 wctx.uninstall = uninstall;
2808 wctx.flags = DEL_REMOTE_MAC_FROM_VTEP;
2809 wctx.r_vtep_ip = *r_vtep_ip;
2232a77c 2810
b1599bb6 2811 hash_iterate(zvni->mac_table, zvni_mac_del_hash_entry, &wctx);
2232a77c 2812}
2813
2814/*
2815 * Delete all MAC entries for this VNI.
2816 */
996c9314 2817static void zvni_mac_del_all(zebra_vni_t *zvni, int uninstall, int upd_client,
d7c0a89a 2818 uint32_t flags)
2232a77c 2819{
d62a17ae 2820 struct mac_walk_ctx wctx;
2232a77c 2821
d62a17ae 2822 if (!zvni->mac_table)
2823 return;
2232a77c 2824
d62a17ae 2825 memset(&wctx, 0, sizeof(struct mac_walk_ctx));
2826 wctx.zvni = zvni;
d62a17ae 2827 wctx.uninstall = uninstall;
2828 wctx.upd_client = upd_client;
2829 wctx.flags = flags;
2232a77c 2830
b1599bb6 2831 hash_iterate(zvni->mac_table, zvni_mac_del_hash_entry, &wctx);
2232a77c 2832}
2833
2834/*
2835 * Look up MAC hash entry.
2836 */
d62a17ae 2837static zebra_mac_t *zvni_mac_lookup(zebra_vni_t *zvni, struct ethaddr *mac)
2232a77c 2838{
d62a17ae 2839 zebra_mac_t tmp;
2840 zebra_mac_t *pmac;
2232a77c 2841
d62a17ae 2842 memset(&tmp, 0, sizeof(tmp));
ff8b7eb8 2843 memcpy(&tmp.macaddr, mac, ETH_ALEN);
d62a17ae 2844 pmac = hash_lookup(zvni->mac_table, &tmp);
2232a77c 2845
d62a17ae 2846 return pmac;
2232a77c 2847}
2848
2849/*
2850 * Inform BGP about local MAC addition.
2851 */
996c9314 2852static int zvni_mac_send_add_to_client(vni_t vni, struct ethaddr *macaddr,
f07e1c99 2853 uint8_t mac_flags, uint32_t seq)
2232a77c 2854{
d7c0a89a 2855 uint8_t flags = 0;
ead40654
MK		 2856
2857 if (CHECK_FLAG(mac_flags, ZEBRA_MAC_STICKY))
2858 SET_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY);
2859 if (CHECK_FLAG(mac_flags, ZEBRA_MAC_DEF_GW))
2860 SET_FLAG(flags, ZEBRA_MACIP_TYPE_GW);
2861
2853fed6 2862 return zvni_macip_send_msg_to_client(vni, macaddr, NULL, flags,
f07e1c99 2863 seq, ZEBRA_MACIP_ADD);
2232a77c 2864}
2865
2866/*
2867 * Inform BGP about local MAC deletion.
2868 */
e98e4b88 2869static int zvni_mac_send_del_to_client(vni_t vni, struct ethaddr *macaddr)
2232a77c 2870{
e98e4b88
AK		 2871 return zvni_macip_send_msg_to_client(vni, macaddr, NULL, 0 /* flags */,
2872 0 /* seq */, ZEBRA_MACIP_DEL);
2232a77c 2873}
2874
2875/*
2876 * Map port or (port, VLAN) to a VNI. This is invoked upon getting MAC
2853fed6 2877 * notifications, to see if they are of interest.
2232a77c 2878 */
d62a17ae 2879static zebra_vni_t *zvni_map_vlan(struct interface *ifp,
2880 struct interface *br_if, vlanid_t vid)
2232a77c 2881{
2853fed6 2882 struct zebra_ns *zns;
2883 struct route_node *rn;
2884 struct interface *tmp_if = NULL;
d62a17ae 2885 struct zebra_if *zif;
2886 struct zebra_l2info_bridge *br;
2853fed6 2887 struct zebra_l2info_vxlan *vxl = NULL;
d7c0a89a 2888 uint8_t bridge_vlan_aware;
d62a17ae 2889 zebra_vni_t *zvni;
2853fed6 2890 int found = 0;
2232a77c 2891
d62a17ae 2892 /* Determine if bridge is VLAN-aware or not */
2893 zif = br_if->info;
2894 assert(zif);
2895 br = &zif->l2info.br;
2896 bridge_vlan_aware = br->vlan_aware;
2232a77c 2897
d62a17ae 2898 /* See if this interface (or interface plus VLAN Id) maps to a VxLAN */
2899 /* TODO: Optimize with a hash. */
2853fed6 2900 zns = zebra_ns_lookup(NS_DEFAULT);
2901 for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
2902 tmp_if = (struct interface *)rn->info;
2903 if (!tmp_if)
2904 continue;
d62a17ae 2905 zif = tmp_if->info;
2906 if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
2907 continue;
2908 if (!if_is_operative(tmp_if))
2909 continue;
2910 vxl = &zif->l2info.vxl;
2232a77c 2911
d62a17ae 2912 if (zif->brslave_info.br_if != br_if)
2913 continue;
2232a77c 2914
2853fed6 2915 if (!bridge_vlan_aware || vxl->access_vlan == vid) {
2916 found = 1;
d62a17ae 2917 break;
2853fed6 2918 }
d62a17ae 2919 }
2232a77c 2920
2853fed6 2921 if (!found)
d62a17ae 2922 return NULL;
2232a77c 2923
2853fed6 2924 zvni = zvni_lookup(vxl->vni);
d62a17ae 2925 return zvni;
2232a77c 2926}
2927
2928/*
2929 * Map SVI and associated bridge to a VNI. This is invoked upon getting
2930 * neighbor notifications, to see if they are of interest.
2232a77c 2931 */
b7cfce93
MK		 2932static zebra_vni_t *zvni_from_svi(struct interface *ifp,
2933 struct interface *br_if)
d62a17ae 2934{
2853fed6 2935 struct zebra_ns *zns;
2936 struct route_node *rn;
2937 struct interface *tmp_if = NULL;
d62a17ae 2938 struct zebra_if *zif;
2939 struct zebra_l2info_bridge *br;
2853fed6 2940 struct zebra_l2info_vxlan *vxl = NULL;
d7c0a89a 2941 uint8_t bridge_vlan_aware;
d62a17ae 2942 vlanid_t vid = 0;
2943 zebra_vni_t *zvni;
2853fed6 2944 int found = 0;
d62a17ae 2945
71349e03
MK		 2946 if (!br_if)
2947 return NULL;
2948
d62a17ae 2949 /* Make sure the linked interface is a bridge. */
2950 if (!IS_ZEBRA_IF_BRIDGE(br_if))
2951 return NULL;
2952
d62a17ae 2953 /* Determine if bridge is VLAN-aware or not */
2954 zif = br_if->info;
2955 assert(zif);
2956 br = &zif->l2info.br;
2957 bridge_vlan_aware = br->vlan_aware;
2958 if (bridge_vlan_aware) {
2959 struct zebra_l2info_vlan *vl;
2960
2961 if (!IS_ZEBRA_IF_VLAN(ifp))
2962 return NULL;
2963
2964 zif = ifp->info;
2965 assert(zif);
2966 vl = &zif->l2info.vl;
2967 vid = vl->vid;
2968 }
2969
2970 /* See if this interface (or interface plus VLAN Id) maps to a VxLAN */
2971 /* TODO: Optimize with a hash. */
2853fed6 2972 zns = zebra_ns_lookup(NS_DEFAULT);
2973 for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
2974 tmp_if = (struct interface *)rn->info;
2975 if (!tmp_if)
2976 continue;
d62a17ae 2977 zif = tmp_if->info;
2978 if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
2979 continue;
2980 if (!if_is_operative(tmp_if))
2981 continue;
2982 vxl = &zif->l2info.vxl;
2983
2984 if (zif->brslave_info.br_if != br_if)
2985 continue;
2986
2853fed6 2987 if (!bridge_vlan_aware || vxl->access_vlan == vid) {
2988 found = 1;
d62a17ae 2989 break;
2853fed6 2990 }
d62a17ae 2991 }
2992
2853fed6 2993 if (!found)
d62a17ae 2994 return NULL;
2995
2853fed6 2996 zvni = zvni_lookup(vxl->vni);
d62a17ae 2997 return zvni;
2232a77c 2998}
2999
3000/* Map to SVI on bridge corresponding to specified VLAN. This can be one
3001 * of two cases:
3002 * (a) In the case of a VLAN-aware bridge, the SVI is a L3 VLAN interface
3003 * linked to the bridge
3004 * (b) In the case of a VLAN-unaware bridge, the SVI is the bridge inteface
3005 * itself
3006 */
2853fed6 3007static struct interface *zvni_map_to_svi(vlanid_t vid, struct interface *br_if)
d62a17ae 3008{
2853fed6 3009 struct zebra_ns *zns;
3010 struct route_node *rn;
3011 struct interface *tmp_if = NULL;
d62a17ae 3012 struct zebra_if *zif;
3013 struct zebra_l2info_bridge *br;
3014 struct zebra_l2info_vlan *vl;
d7c0a89a 3015 uint8_t bridge_vlan_aware;
2853fed6 3016 int found = 0;
d62a17ae 3017
b5ebdc9b 3018 /* Defensive check, caller expected to invoke only with valid bridge. */
3019 if (!br_if)
3020 return NULL;
3021
d62a17ae 3022 /* Determine if bridge is VLAN-aware or not */
3023 zif = br_if->info;
3024 assert(zif);
3025 br = &zif->l2info.br;
3026 bridge_vlan_aware = br->vlan_aware;
3027
3028 /* Check oper status of the SVI. */
3029 if (!bridge_vlan_aware)
3030 return if_is_operative(br_if) ? br_if : NULL;
3031
3032 /* Identify corresponding VLAN interface. */
3033 /* TODO: Optimize with a hash. */
2853fed6 3034 zns = zebra_ns_lookup(NS_DEFAULT);
3035 for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
3036 tmp_if = (struct interface *)rn->info;
d62a17ae 3037 /* Check oper status of the SVI. */
2853fed6 3038 if (!tmp_if || !if_is_operative(tmp_if))
d62a17ae 3039 continue;
3040 zif = tmp_if->info;
3041 if (!zif || zif->zif_type != ZEBRA_IF_VLAN
3042 || zif->link != br_if)
3043 continue;
3044 vl = (struct zebra_l2info_vlan *)&zif->l2info.vl;
3045
2853fed6 3046 if (vl->vid == vid) {
3047 found = 1;
d62a17ae 3048 break;
2853fed6 3049 }
d62a17ae 3050 }
3051
2853fed6 3052 return found ? tmp_if : NULL;
2232a77c 3053}
3054
3055/*
3056 * Install remote MAC into the kernel.
3057 */
d62a17ae 3058static int zvni_mac_install(zebra_vni_t *zvni, zebra_mac_t *mac)
2232a77c 3059{
d62a17ae 3060 struct zebra_if *zif;
3061 struct zebra_l2info_vxlan *vxl;
a37f4598 3062 bool sticky;
2232a77c 3063
d62a17ae 3064 if (!(mac->flags & ZEBRA_MAC_REMOTE))
3065 return 0;
2232a77c 3066
d62a17ae 3067 zif = zvni->vxlan_if->info;
3068 if (!zif)
3069 return -1;
3070 vxl = &zif->l2info.vxl;
2232a77c 3071
a37f4598 3072 sticky = !!CHECK_FLAG(mac->flags,
3073 (ZEBRA_MAC_STICKY | ZEBRA_MAC_REMOTE_DEF_GW));
c85c03c7 3074
d62a17ae 3075 return kernel_add_mac(zvni->vxlan_if, vxl->access_vlan, &mac->macaddr,
3076 mac->fwd_info.r_vtep_ip, sticky);
2232a77c 3077}
3078
3079/*
d63c1b18 3080 * Uninstall remote MAC from the kernel.
2232a77c 3081 */
d63c1b18 3082static int zvni_mac_uninstall(zebra_vni_t *zvni, zebra_mac_t *mac)
2232a77c 3083{
d62a17ae 3084 struct zebra_if *zif;
3085 struct zebra_l2info_vxlan *vxl;
98efddf1 3086 struct in_addr vtep_ip;
d62a17ae 3087 struct interface *ifp;
2232a77c 3088
d63c1b18 3089 if (!(mac->flags & ZEBRA_MAC_REMOTE))
d62a17ae 3090 return 0;
2232a77c 3091
d62a17ae 3092 if (!zvni->vxlan_if) {
9df414fe
QY		 3093 zlog_debug("VNI %u hash %p couldn't be uninstalled - no intf",
3094 zvni->vni, zvni);
d62a17ae 3095 return -1;
3096 }
2232a77c 3097
d62a17ae 3098 zif = zvni->vxlan_if->info;
3099 if (!zif)
3100 return -1;
3101 vxl = &zif->l2info.vxl;
2232a77c 3102
d63c1b18 3103 ifp = zvni->vxlan_if;
3104 vtep_ip = mac->fwd_info.r_vtep_ip;
2232a77c 3105
d63c1b18 3106 return kernel_del_mac(ifp, vxl->access_vlan, &mac->macaddr, vtep_ip);
2232a77c 3107}
3108
3109/*
3110 * Install MAC hash entry - called upon access VLAN change.
3111 */
d62a17ae 3112static void zvni_install_mac_hash(struct hash_backet *backet, void *ctxt)
2232a77c 3113{
d62a17ae 3114 zebra_mac_t *mac;
3115 struct mac_walk_ctx *wctx = ctxt;
2232a77c 3116
d62a17ae 3117 mac = (zebra_mac_t *)backet->data;
2232a77c 3118
d62a17ae 3119 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE))
3120 zvni_mac_install(wctx->zvni, mac);
2232a77c 3121}
3122
fe697c6b 3123/*
3124 * Count of remote neighbors referencing this MAC.
3125 */
3126static int remote_neigh_count(zebra_mac_t *zmac)
3127{
3128 zebra_neigh_t *n = NULL;
3129 struct listnode *node = NULL;
3130 int count = 0;
3131
3132 for (ALL_LIST_ELEMENTS_RO(zmac->neigh_list, node, n)) {
3133 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE))
3134 count++;
3135 }
3136
3137 return count;
3138}
3139
2232a77c 3140/*
3141 * Decrement neighbor refcount of MAC; uninstall and free it if
3142 * appropriate.
3143 */
fe697c6b 3144static void zvni_deref_ip2mac(zebra_vni_t *zvni, zebra_mac_t *mac)
2232a77c 3145{
fe697c6b 3146 if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO))
d62a17ae 3147 return;
2232a77c 3148
fe697c6b 3149 /* If all remote neighbors referencing a remote MAC go away,
3150 * we need to uninstall the MAC.
3151 */
3152 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) &&
3153 remote_neigh_count(mac) == 0) {
d63c1b18 3154 zvni_mac_uninstall(zvni, mac);
fe697c6b 3155 UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE);
3156 }
2232a77c 3157
fe697c6b 3158 /* If no neighbors, delete the MAC. */
3159 if (list_isempty(mac->neigh_list))
3160 zvni_mac_del(zvni, mac);
2232a77c 3161}
3162
3163/*
3164 * Read and populate local MACs and neighbors corresponding to this VNI.
3165 */
996c9314 3166static void zvni_read_mac_neigh(zebra_vni_t *zvni, struct interface *ifp)
2232a77c 3167{
2853fed6 3168 struct zebra_ns *zns;
d62a17ae 3169 struct zebra_if *zif;
3170 struct interface *vlan_if;
3171 struct zebra_l2info_vxlan *vxl;
1a98c087 3172 struct interface *vrr_if;
2232a77c 3173
d62a17ae 3174 zif = ifp->info;
3175 vxl = &zif->l2info.vxl;
2853fed6 3176 zns = zebra_ns_lookup(NS_DEFAULT);
2232a77c 3177
d62a17ae 3178 if (IS_ZEBRA_DEBUG_VXLAN)
3179 zlog_debug(
2853fed6 3180 "Reading MAC FDB and Neighbors for intf %s(%u) VNI %u master %u",
3181 ifp->name, ifp->ifindex, zvni->vni,
d62a17ae 3182 zif->brslave_info.bridge_ifindex);
2232a77c 3183
2853fed6 3184 macfdb_read_for_bridge(zns, ifp, zif->brslave_info.br_if);
3185 vlan_if = zvni_map_to_svi(vxl->access_vlan, zif->brslave_info.br_if);
1a98c087
MK		 3186 if (vlan_if) {
3187
ead40654
MK		 3188 /* Add SVI MAC-IP */
3189 zvni_add_macip_for_intf(vlan_if, zvni);
1a98c087 3190
ead40654
MK		 3191 /* Add VRR MAC-IP - if any*/
3192 vrr_if = zebra_get_vrr_intf_for_svi(vlan_if);
3193 if (vrr_if)
3194 zvni_add_macip_for_intf(vrr_if, zvni);
1a98c087 3195
2853fed6 3196 neigh_read_for_vlan(zns, vlan_if);
1a98c087 3197 }
2232a77c 3198}
3199
3200/*
3201 * Hash function for VNI.
3202 */
d62a17ae 3203static unsigned int vni_hash_keymake(void *p)
2232a77c 3204{
d62a17ae 3205 const zebra_vni_t *zvni = p;
2232a77c 3206
d62a17ae 3207 return (jhash_1word(zvni->vni, 0));
2232a77c 3208}
3209
3210/*
3211 * Compare 2 VNI hash entries.
3212 */
74df8d6d 3213static bool vni_hash_cmp(const void *p1, const void *p2)
2232a77c 3214{
d62a17ae 3215 const zebra_vni_t *zvni1 = p1;
3216 const zebra_vni_t *zvni2 = p2;
2232a77c 3217
d62a17ae 3218 return (zvni1->vni == zvni2->vni);
2232a77c 3219}
3220
27fa3398
DS		 3221static int vni_list_cmp(void *p1, void *p2)
3222{
3223 const zebra_vni_t *zvni1 = p1;
3224 const zebra_vni_t *zvni2 = p2;
3225
3226 if (zvni1->vni == zvni2->vni)
3227 return 0;
3228 return (zvni1->vni < zvni2->vni) ? -1 : 1;
3229}
3230
2232a77c 3231/*
3232 * Callback to allocate VNI hash entry.
3233 */
d62a17ae 3234static void *zvni_alloc(void *p)
2232a77c 3235{
d62a17ae 3236 const zebra_vni_t *tmp_vni = p;
3237 zebra_vni_t *zvni;
2232a77c 3238
d62a17ae 3239 zvni = XCALLOC(MTYPE_ZVNI, sizeof(zebra_vni_t));
3240 zvni->vni = tmp_vni->vni;
3241 return ((void *)zvni);
2232a77c 3242}
3243
3244/*
3245 * Look up VNI hash entry.
3246 */
2853fed6 3247static zebra_vni_t *zvni_lookup(vni_t vni)
2232a77c 3248{
2853fed6 3249 struct zebra_vrf *zvrf;
d62a17ae 3250 zebra_vni_t tmp_vni;
3251 zebra_vni_t *zvni = NULL;
2232a77c 3252
2853fed6 3253 zvrf = vrf_info_lookup(VRF_DEFAULT);
3254 assert(zvrf);
d62a17ae 3255 memset(&tmp_vni, 0, sizeof(zebra_vni_t));
3256 tmp_vni.vni = vni;
3257 zvni = hash_lookup(zvrf->vni_table, &tmp_vni);
2232a77c 3258
d62a17ae 3259 return zvni;
2232a77c 3260}
3261
3262/*
3263 * Add VNI hash entry.
3264 */
2853fed6 3265static zebra_vni_t *zvni_add(vni_t vni)
2232a77c 3266{
2853fed6 3267 struct zebra_vrf *zvrf;
d62a17ae 3268 zebra_vni_t tmp_zvni;
3269 zebra_vni_t *zvni = NULL;
2232a77c 3270
2853fed6 3271 zvrf = vrf_info_lookup(VRF_DEFAULT);
3272 assert(zvrf);
d62a17ae 3273 memset(&tmp_zvni, 0, sizeof(zebra_vni_t));
3274 tmp_zvni.vni = vni;
3275 zvni = hash_get(zvrf->vni_table, &tmp_zvni, zvni_alloc);
3276 assert(zvni);
2232a77c 3277
d62a17ae 3278 /* Create hash table for MAC */
3279 zvni->mac_table =
3280 hash_create(mac_hash_keymake, mac_cmp, "Zebra VNI MAC Table");
2232a77c 3281
d62a17ae 3282 /* Create hash table for neighbors */
3283 zvni->neigh_table = hash_create(neigh_hash_keymake, neigh_cmp,
3284 "Zebra VNI Neighbor Table");
2232a77c 3285
d62a17ae 3286 return zvni;
2232a77c 3287}
3288
3289/*
3290 * Delete VNI hash entry.
3291 */
2853fed6 3292static int zvni_del(zebra_vni_t *zvni)
2232a77c 3293{
2853fed6 3294 struct zebra_vrf *zvrf;
d62a17ae 3295 zebra_vni_t *tmp_zvni;
2232a77c 3296
2853fed6 3297 zvrf = vrf_info_lookup(VRF_DEFAULT);
3298 assert(zvrf);
3299
d62a17ae 3300 zvni->vxlan_if = NULL;
2232a77c 3301
d62a17ae 3302 /* Free the neighbor hash table. */
3303 hash_free(zvni->neigh_table);
3304 zvni->neigh_table = NULL;
2232a77c 3305
d62a17ae 3306 /* Free the MAC hash table. */
3307 hash_free(zvni->mac_table);
3308 zvni->mac_table = NULL;
2232a77c 3309
d62a17ae 3310 /* Free the VNI hash entry and allocated memory. */
3311 tmp_zvni = hash_release(zvrf->vni_table, zvni);
3312 if (tmp_zvni)
3313 XFREE(MTYPE_ZVNI, tmp_zvni);
2232a77c 3314
d62a17ae 3315 return 0;
2232a77c 3316}
3317
3318/*
3319 * Inform BGP about local VNI addition.
3320 */
2853fed6 3321static int zvni_send_add_to_client(zebra_vni_t *zvni)
2232a77c 3322{
d62a17ae 3323 struct zserv *client;
3324 struct stream *s;
2232a77c 3325
21ccc0cf 3326 client = zserv_find_client(ZEBRA_ROUTE_BGP, 0);
d62a17ae 3327 /* BGP may not be running. */
3328 if (!client)
3329 return 0;
2232a77c 3330
1002497a 3331 s = stream_new(ZEBRA_MAX_PACKET_SIZ);
2232a77c 3332
7cf15b25 3333 zclient_create_header(s, ZEBRA_VNI_ADD, VRF_DEFAULT);
d62a17ae 3334 stream_putl(s, zvni->vni);
3335 stream_put_in_addr(s, &zvni->local_vtep_ip);
b7cfce93 3336 stream_put(s, &zvni->vrf_id, sizeof(vrf_id_t)); /* tenant vrf */
2232a77c 3337
d62a17ae 3338 /* Write packet size. */
3339 stream_putw_at(s, 0, stream_get_endp(s));
2232a77c 3340
d62a17ae 3341 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314
LB		 3342 zlog_debug("Send VNI_ADD %u %s tenant vrf %s to %s", zvni->vni,
3343 inet_ntoa(zvni->local_vtep_ip),
b7cfce93 3344 vrf_id_to_name(zvni->vrf_id),
d62a17ae 3345 zebra_route_string(client->proto));
2232a77c 3346
d62a17ae 3347 client->vniadd_cnt++;
21ccc0cf 3348 return zserv_send_message(client, s);
2232a77c 3349}
3350
3351/*
3352 * Inform BGP about local VNI deletion.
3353 */
2853fed6 3354static int zvni_send_del_to_client(vni_t vni)
2232a77c 3355{
d62a17ae 3356 struct zserv *client;
3357 struct stream *s;
2232a77c 3358
21ccc0cf 3359 client = zserv_find_client(ZEBRA_ROUTE_BGP, 0);
d62a17ae 3360 /* BGP may not be running. */
3361 if (!client)
3362 return 0;
2232a77c 3363
1002497a 3364 s = stream_new(ZEBRA_MAX_PACKET_SIZ);
d62a17ae 3365 stream_reset(s);
2232a77c 3366
7cf15b25 3367 zclient_create_header(s, ZEBRA_VNI_DEL, VRF_DEFAULT);
d62a17ae 3368 stream_putl(s, vni);
2232a77c 3369
d62a17ae 3370 /* Write packet size. */
3371 stream_putw_at(s, 0, stream_get_endp(s));
2232a77c 3372
d62a17ae 3373 if (IS_ZEBRA_DEBUG_VXLAN)
2853fed6 3374 zlog_debug("Send VNI_DEL %u to %s", vni,
d62a17ae 3375 zebra_route_string(client->proto));
2232a77c 3376
d62a17ae 3377 client->vnidel_cnt++;
21ccc0cf 3378 return zserv_send_message(client, s);
2232a77c 3379}
3380
3381/*
3382 * Build the VNI hash table by going over the VxLAN interfaces. This
3383 * is called when EVPN (advertise-all-vni) is enabled.
3384 */
2853fed6 3385static void zvni_build_hash_table()
2232a77c 3386{
2853fed6 3387 struct zebra_ns *zns;
3388 struct route_node *rn;
d62a17ae 3389 struct interface *ifp;
2232a77c 3390
d62a17ae 3391 /* Walk VxLAN interfaces and create VNI hash. */
2853fed6 3392 zns = zebra_ns_lookup(NS_DEFAULT);
3393 for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
b7cfce93 3394 vni_t vni;
643215ce 3395 zebra_vni_t *zvni = NULL;
3396 zebra_l3vni_t *zl3vni = NULL;
d62a17ae 3397 struct zebra_if *zif;
3398 struct zebra_l2info_vxlan *vxl;
2232a77c 3399
2853fed6 3400 ifp = (struct interface *)rn->info;
3401 if (!ifp)
3402 continue;
d62a17ae 3403 zif = ifp->info;
3404 if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
3405 continue;
2232a77c 3406
b7cfce93 3407 vxl = &zif->l2info.vxl;
d62a17ae 3408 vni = vxl->vni;
2232a77c 3409
643215ce 3410 /* L3-VNI and L2-VNI are handled seperately */
3411 zl3vni = zl3vni_lookup(vni);
3412 if (zl3vni) {
2232a77c 3413
b7cfce93 3414 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314
LB		 3415 zlog_debug(
3416 "create L3-VNI hash for Intf %s(%u) L3-VNI %u",
3417 ifp->name, ifp->ifindex, vni);
2232a77c 3418
b7cfce93 3419 /* associate with vxlan_if */
b67a60d2 3420 zl3vni->local_vtep_ip = vxl->vtep_ip;
b7cfce93 3421 zl3vni->vxlan_if = ifp;
2232a77c 3422
523cafc4 3423 /*
3424 * we need to associate with SVI.
b7cfce93 3425 * we can associate with svi-if only after association
523cafc4 3426 * with vxlan-intf is complete
3427 */
b7cfce93
MK		 3428 zl3vni->svi_if = zl3vni_map_to_svi_if(zl3vni);
3429
3430 if (is_l3vni_oper_up(zl3vni))
3431 zebra_vxlan_process_l3vni_oper_up(zl3vni);
3432
3433 } else {
b7cfce93
MK		 3434 struct interface *vlan_if = NULL;
3435
3436 if (IS_ZEBRA_DEBUG_VXLAN)
3437 zlog_debug(
3438 "Create L2-VNI hash for intf %s(%u) L2-VNI %u local IP %s",
3439 ifp->name, ifp->ifindex, vni,
3440 inet_ntoa(vxl->vtep_ip));
3441
3442 /* VNI hash entry is not expected to exist. */
3443 zvni = zvni_lookup(vni);
3444 if (zvni) {
9df414fe 3445 zlog_debug(
b7cfce93
MK		 3446 "VNI hash already present for IF %s(%u) L2-VNI %u",
3447 ifp->name, ifp->ifindex, vni);
3448 continue;
3449 }
3450
3451 zvni = zvni_add(vni);
3452 if (!zvni) {
9df414fe 3453 zlog_debug(
b7cfce93
MK		 3454 "Failed to add VNI hash, IF %s(%u) L2-VNI %u",
3455 ifp->name, ifp->ifindex, vni);
3456 return;
3457 }
3458
3459 zvni->local_vtep_ip = vxl->vtep_ip;
3460 zvni->vxlan_if = ifp;
3461 vlan_if = zvni_map_to_svi(vxl->access_vlan,
3462 zif->brslave_info.br_if);
3463 if (vlan_if) {
3464 zvni->vrf_id = vlan_if->vrf_id;
3465 zl3vni = zl3vni_from_vrf(vlan_if->vrf_id);
3466 if (zl3vni)
3467 listnode_add_sort(zl3vni->l2vnis, zvni);
3468 }
3469
3470
3471 /* Inform BGP if intf is up and mapped to bridge. */
3472 if (if_is_operative(ifp) && zif->brslave_info.br_if)
3473 zvni_send_add_to_client(zvni);
3474 }
d62a17ae 3475 }
2232a77c 3476}
3477
3478/*
3479 * See if remote VTEP matches with prefix.
3480 */
d62a17ae 3481static int zvni_vtep_match(struct in_addr *vtep_ip, zebra_vtep_t *zvtep)
2232a77c 3482{
d62a17ae 3483 return (IPV4_ADDR_SAME(vtep_ip, &zvtep->vtep_ip));
2232a77c 3484}
3485
3486/*
3487 * Locate remote VTEP in VNI hash table.
3488 */
d62a17ae 3489static zebra_vtep_t *zvni_vtep_find(zebra_vni_t *zvni, struct in_addr *vtep_ip)
2232a77c 3490{
d62a17ae 3491 zebra_vtep_t *zvtep;
2232a77c 3492
d62a17ae 3493 if (!zvni)
3494 return NULL;
2232a77c 3495
d62a17ae 3496 for (zvtep = zvni->vteps; zvtep; zvtep = zvtep->next) {
3497 if (zvni_vtep_match(vtep_ip, zvtep))
3498 break;
3499 }
2232a77c 3500
d62a17ae 3501 return zvtep;
2232a77c 3502}
3503
3504/*
3505 * Add remote VTEP to VNI hash table.
3506 */
d62a17ae 3507static zebra_vtep_t *zvni_vtep_add(zebra_vni_t *zvni, struct in_addr *vtep_ip)
2232a77c 3508{
d62a17ae 3509 zebra_vtep_t *zvtep;
2232a77c 3510
d62a17ae 3511 zvtep = XCALLOC(MTYPE_ZVNI_VTEP, sizeof(zebra_vtep_t));
2232a77c 3512
d62a17ae 3513 zvtep->vtep_ip = *vtep_ip;
2232a77c 3514
d62a17ae 3515 if (zvni->vteps)
3516 zvni->vteps->prev = zvtep;
3517 zvtep->next = zvni->vteps;
3518 zvni->vteps = zvtep;
2232a77c 3519
d62a17ae 3520 return zvtep;
2232a77c 3521}
3522
3523/*
3524 * Remove remote VTEP from VNI hash table.
3525 */
d62a17ae 3526static int zvni_vtep_del(zebra_vni_t *zvni, zebra_vtep_t *zvtep)
2232a77c 3527{
d62a17ae 3528 if (zvtep->next)
3529 zvtep->next->prev = zvtep->prev;
3530 if (zvtep->prev)
3531 zvtep->prev->next = zvtep->next;
3532 else
3533 zvni->vteps = zvtep->next;
2232a77c 3534
d62a17ae 3535 zvtep->prev = zvtep->next = NULL;
3536 XFREE(MTYPE_ZVNI_VTEP, zvtep);
2232a77c 3537
d62a17ae 3538 return 0;
2232a77c 3539}
3540
3541/*
3542 * Delete all remote VTEPs for this VNI (upon VNI delete). Also
3543 * uninstall from kernel if asked to.
3544 */
d62a17ae 3545static int zvni_vtep_del_all(zebra_vni_t *zvni, int uninstall)
2232a77c 3546{
d62a17ae 3547 zebra_vtep_t *zvtep, *zvtep_next;
2232a77c 3548
d62a17ae 3549 if (!zvni)
3550 return -1;
2232a77c 3551
d62a17ae 3552 for (zvtep = zvni->vteps; zvtep; zvtep = zvtep_next) {
3553 zvtep_next = zvtep->next;
3554 if (uninstall)
3555 zvni_vtep_uninstall(zvni, &zvtep->vtep_ip);
3556 zvni_vtep_del(zvni, zvtep);
3557 }
2232a77c 3558
d62a17ae 3559 return 0;
2232a77c 3560}
3561
3562/*
3563 * Install remote VTEP into the kernel.
3564 */
d62a17ae 3565static int zvni_vtep_install(zebra_vni_t *zvni, struct in_addr *vtep_ip)
2232a77c 3566{
fbac9605
DS		 3567 if (is_vxlan_flooding_head_end())
3568 return kernel_add_vtep(zvni->vni, zvni->vxlan_if, vtep_ip);
3569 return 0;
2232a77c 3570}
3571
3572/*
3573 * Uninstall remote VTEP from the kernel.
3574 */
d62a17ae 3575static int zvni_vtep_uninstall(zebra_vni_t *zvni, struct in_addr *vtep_ip)
2232a77c 3576{
d62a17ae 3577 if (!zvni->vxlan_if) {
9df414fe
QY		 3578 zlog_debug("VNI %u hash %p couldn't be uninstalled - no intf",
3579 zvni->vni, zvni);
d62a17ae 3580 return -1;
3581 }
2232a77c 3582
d62a17ae 3583 return kernel_del_vtep(zvni->vni, zvni->vxlan_if, vtep_ip);
2232a77c 3584}
3585
fbac9605
DS		 3586/*
3587 * Install or uninstall flood entries in the kernel corresponding to
3588 * remote VTEPs. This is invoked upon change to BUM handling.
3589 */
3590static void zvni_handle_flooding_remote_vteps(struct hash_backet *backet,
3591 void *zvrf)
3592{
3593 zebra_vni_t *zvni;
3594 zebra_vtep_t *zvtep;
3595
3596 zvni = (zebra_vni_t *)backet->data;
3597 if (!zvni)
3598 return;
3599
3600 for (zvtep = zvni->vteps; zvtep; zvtep = zvtep->next) {
3601 if (is_vxlan_flooding_head_end())
3602 zvni_vtep_install(zvni, &zvtep->vtep_ip);
3603 else
3604 zvni_vtep_uninstall(zvni, &zvtep->vtep_ip);
3605 }
3606}
3607
2232a77c 3608/*
3609 * Cleanup VNI/VTEP and update kernel
3610 */
84915b0a 3611static void zvni_cleanup_all(struct hash_backet *backet, void *arg)
2232a77c 3612{
b7cfce93
MK		 3613 zebra_vni_t *zvni = NULL;
3614 zebra_l3vni_t *zl3vni = NULL;
84915b0a 3615 struct zebra_vrf *zvrf = (struct zebra_vrf *)arg;
2232a77c 3616
d62a17ae 3617 zvni = (zebra_vni_t *)backet->data;
2232a77c 3618
b7cfce93 3619 /* remove from l3-vni list */
84915b0a 3620 if (zvrf->l3vni)
3621 zl3vni = zl3vni_lookup(zvrf->l3vni);
b7cfce93
MK		 3622 if (zl3vni)
3623 listnode_delete(zl3vni->l2vnis, zvni);
3624
d62a17ae 3625 /* Free up all neighbors and MACs, if any. */
2853fed6 3626 zvni_neigh_del_all(zvni, 1, 0, DEL_ALL_NEIGH);
3627 zvni_mac_del_all(zvni, 1, 0, DEL_ALL_MAC);
2232a77c 3628
d62a17ae 3629 /* Free up all remote VTEPs, if any. */
3630 zvni_vtep_del_all(zvni, 1);
2232a77c 3631
d62a17ae 3632 /* Delete the hash entry. */
2853fed6 3633 zvni_del(zvni);
2232a77c 3634}
3635
655b04d1 3636/* cleanup L3VNI */
996c9314 3637static void zl3vni_cleanup_all(struct hash_backet *backet, void *args)
655b04d1
MK		 3638{
3639 zebra_l3vni_t *zl3vni = NULL;
3640
3641 zl3vni = (zebra_l3vni_t *)backet->data;
655b04d1
MK		 3642
3643 zebra_vxlan_process_l3vni_oper_down(zl3vni);
3644}
3645
85442b09 3646static void rb_find_or_add_host(struct host_rb_tree_entry *hrbe,
41db76c2 3647 struct prefix *host)
5e1b0650
DS		 3648{
3649 struct host_rb_entry lookup;
3650 struct host_rb_entry *hle;
3651
3652 memset(&lookup, 0, sizeof(lookup));
3653 memcpy(&lookup.p, host, sizeof(*host));
3654
85442b09 3655 hle = RB_FIND(host_rb_tree_entry, hrbe, &lookup);
5e1b0650
DS		 3656 if (hle)
3657 return;
3658
3659 hle = XCALLOC(MTYPE_HOST_PREFIX, sizeof(struct host_rb_entry));
3660 memcpy(hle, &lookup, sizeof(lookup));
3661
85442b09 3662 RB_INSERT(host_rb_tree_entry, hrbe, hle);
5e1b0650
DS		 3663}
3664
85442b09 3665static void rb_delete_host(struct host_rb_tree_entry *hrbe, struct prefix *host)
5e1b0650
DS		 3666{
3667 struct host_rb_entry lookup;
3668 struct host_rb_entry *hle;
3669
3670 memset(&lookup, 0, sizeof(lookup));
3671 memcpy(&lookup.p, host, sizeof(*host));
3672
85442b09 3673 hle = RB_FIND(host_rb_tree_entry, hrbe, &lookup);
10ac2516 3674 if (hle) {
85442b09 3675 RB_REMOVE(host_rb_tree_entry, hrbe, hle);
10ac2516
DS		 3676 XFREE(MTYPE_HOST_PREFIX, hle);
3677 }
5e1b0650
DS		 3678
3679 return;
3680}
3681
b7cfce93
MK		 3682/*
3683 * Look up MAC hash entry.
3684 */
2dbad57f 3685static zebra_mac_t *zl3vni_rmac_lookup(zebra_l3vni_t *zl3vni,
b7cfce93
MK		 3686 struct ethaddr *rmac)
3687{
3688 zebra_mac_t tmp;
3689 zebra_mac_t *pmac;
3690
3691 memset(&tmp, 0, sizeof(tmp));
3692 memcpy(&tmp.macaddr, rmac, ETH_ALEN);
3693 pmac = hash_lookup(zl3vni->rmac_table, &tmp);
2232a77c 3694
b7cfce93 3695 return pmac;
2dbad57f 3696}
2232a77c 3697
cec2e17d 3698/*
b7cfce93 3699 * Callback to allocate RMAC hash entry.
cec2e17d 3700 */
2dbad57f 3701static void *zl3vni_rmac_alloc(void *p)
d62a17ae 3702{
b7cfce93
MK		 3703 const zebra_mac_t *tmp_rmac = p;
3704 zebra_mac_t *zrmac;
d62a17ae 3705
b7cfce93
MK		 3706 zrmac = XCALLOC(MTYPE_MAC, sizeof(zebra_mac_t));
3707 *zrmac = *tmp_rmac;
d62a17ae 3708
b7cfce93 3709 return ((void *)zrmac);
2dbad57f 3710}
cd233079 3711
b7cfce93
MK		 3712/*
3713 * Add RMAC entry to l3-vni
3714 */
996c9314 3715static zebra_mac_t *zl3vni_rmac_add(zebra_l3vni_t *zl3vni, struct ethaddr *rmac)
b7cfce93
MK		 3716{
3717 zebra_mac_t tmp_rmac;
3718 zebra_mac_t *zrmac = NULL;
d62a17ae 3719
b7cfce93
MK		 3720 memset(&tmp_rmac, 0, sizeof(zebra_mac_t));
3721 memcpy(&tmp_rmac.macaddr, rmac, ETH_ALEN);
3722 zrmac = hash_get(zl3vni->rmac_table, &tmp_rmac, zl3vni_rmac_alloc);
3723 assert(zrmac);
d62a17ae 3724
85442b09 3725 RB_INIT(host_rb_tree_entry, &zrmac->host_rb);
b7cfce93 3726
2dbad57f 3727 SET_FLAG(zrmac->flags, ZEBRA_MAC_REMOTE);
3728 SET_FLAG(zrmac->flags, ZEBRA_MAC_REMOTE_RMAC);
3729
b7cfce93 3730 return zrmac;
2dbad57f 3731}
cec2e17d 3732
3733/*
b7cfce93 3734 * Delete MAC entry.
cec2e17d 3735 */
996c9314 3736static int zl3vni_rmac_del(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac)
cec2e17d 3737{
b7cfce93 3738 zebra_mac_t *tmp_rmac;
5e1b0650 3739 struct host_rb_entry *hle;
cd233079 3740
85442b09
DS		 3741 while (!RB_EMPTY(host_rb_tree_entry, &zrmac->host_rb)) {
3742 hle = RB_ROOT(host_rb_tree_entry, &zrmac->host_rb);
5e1b0650 3743
85442b09 3744 RB_REMOVE(host_rb_tree_entry, &zrmac->host_rb, hle);
5e1b0650
DS		 3745 XFREE(MTYPE_HOST_PREFIX, hle);
3746 }
cd233079 3747
b7cfce93
MK		 3748 tmp_rmac = hash_release(zl3vni->rmac_table, zrmac);
3749 if (tmp_rmac)
3750 XFREE(MTYPE_MAC, tmp_rmac);
cd233079 3751
b7cfce93 3752 return 0;
2dbad57f 3753}
cec2e17d 3754
3755/*
b7cfce93 3756 * Install remote RMAC into the kernel.
cec2e17d 3757 */
996c9314 3758static int zl3vni_rmac_install(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac)
cec2e17d 3759{
b7cfce93
MK		 3760 struct zebra_if *zif = NULL;
3761 struct zebra_l2info_vxlan *vxl = NULL;
cec2e17d 3762
996c9314
LB		 3763 if (!(CHECK_FLAG(zrmac->flags, ZEBRA_MAC_REMOTE))
3764 || !(CHECK_FLAG(zrmac->flags, ZEBRA_MAC_REMOTE_RMAC)))
b7cfce93
MK		 3765 return 0;
3766
3767 zif = zl3vni->vxlan_if->info;
3768 if (!zif)
3769 return -1;
3770
3771 vxl = &zif->l2info.vxl;
3772
3773 return kernel_add_mac(zl3vni->vxlan_if, vxl->access_vlan,
996c9314 3774 &zrmac->macaddr, zrmac->fwd_info.r_vtep_ip, 0);
2dbad57f 3775}
b7cfce93
MK		 3776
3777/*
3778 * Uninstall remote RMAC from the kernel.
3779 */
996c9314 3780static int zl3vni_rmac_uninstall(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac)
b7cfce93
MK		 3781{
3782 char buf[ETHER_ADDR_STRLEN];
3783 struct zebra_if *zif = NULL;
3784 struct zebra_l2info_vxlan *vxl = NULL;
3785
996c9314
LB		 3786 if (!(CHECK_FLAG(zrmac->flags, ZEBRA_MAC_REMOTE))
3787 || !(CHECK_FLAG(zrmac->flags, ZEBRA_MAC_REMOTE_RMAC)))
b7cfce93
MK		 3788 return 0;
3789
3790 if (!zl3vni->vxlan_if) {
9df414fe 3791 zlog_debug(
996c9314
LB		 3792 "RMAC %s on L3-VNI %u hash %p couldn't be uninstalled - no vxlan_if",
3793 prefix_mac2str(&zrmac->macaddr, buf, sizeof(buf)),
3794 zl3vni->vni, zl3vni);
b7cfce93
MK		 3795 return -1;
3796 }
3797
3798 zif = zl3vni->vxlan_if->info;
3799 if (!zif)
3800 return -1;
3801
3802 vxl = &zif->l2info.vxl;
3803
3804 return kernel_del_mac(zl3vni->vxlan_if, vxl->access_vlan,
d63c1b18 3805 &zrmac->macaddr, zrmac->fwd_info.r_vtep_ip);
2dbad57f 3806}
3807
3808/* handle rmac add */
996c9314 3809static int zl3vni_remote_rmac_add(zebra_l3vni_t *zl3vni, struct ethaddr *rmac,
6134fd82 3810 struct ipaddr *vtep_ip,
3811 struct prefix *host_prefix)
2dbad57f 3812{
3813 char buf[ETHER_ADDR_STRLEN];
3814 char buf1[INET6_ADDRSTRLEN];
3815 zebra_mac_t *zrmac = NULL;
3816
3817 zrmac = zl3vni_rmac_lookup(zl3vni, rmac);
3818 if (!zrmac) {
3819
3820 zrmac = zl3vni_rmac_add(zl3vni, rmac);
3821 if (!zrmac) {
9df414fe 3822 zlog_debug(
2dbad57f 3823 "Failed to add RMAC %s L3VNI %u Remote VTEP %s",
996c9314
LB		 3824 prefix_mac2str(rmac, buf, sizeof(buf)),
3825 zl3vni->vni,
3826 ipaddr2str(vtep_ip, buf1, sizeof(buf1)));
2dbad57f 3827 return -1;
3828 }
3829 memset(&zrmac->fwd_info, 0, sizeof(zrmac->fwd_info));
3830 zrmac->fwd_info.r_vtep_ip = vtep_ip->ipaddr_v4;
3831
3832 /* install rmac in kernel */
3833 zl3vni_rmac_install(zl3vni, zrmac);
3834 }
6134fd82 3835
41db76c2 3836 rb_find_or_add_host(&zrmac->host_rb, host_prefix);
5e1b0650 3837
2dbad57f 3838 return 0;
3839}
3840
3841
3842/* handle rmac delete */
22e63104 3843static void zl3vni_remote_rmac_del(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac,
6134fd82 3844 struct prefix *host_prefix)
2dbad57f 3845{
41db76c2 3846 rb_delete_host(&zrmac->host_rb, host_prefix);
2dbad57f 3847
85442b09 3848 if (RB_EMPTY(host_rb_tree_entry, &zrmac->host_rb)) {
2dbad57f 3849 /* uninstall from kernel */
3850 zl3vni_rmac_uninstall(zl3vni, zrmac);
3851
3852 /* del the rmac entry */
3853 zl3vni_rmac_del(zl3vni, zrmac);
3854 }
2dbad57f 3855}
b7cfce93
MK		 3856
3857/*
3858 * Look up nh hash entry on a l3-vni.
3859 */
996c9314 3860static zebra_neigh_t *zl3vni_nh_lookup(zebra_l3vni_t *zl3vni, struct ipaddr *ip)
b7cfce93
MK		 3861{
3862 zebra_neigh_t tmp;
3863 zebra_neigh_t *n;
3864
3865 memset(&tmp, 0, sizeof(tmp));
3866 memcpy(&tmp.ip, ip, sizeof(struct ipaddr));
3867 n = hash_lookup(zl3vni->nh_table, &tmp);
3868
3869 return n;
2dbad57f 3870}
b7cfce93
MK		 3871
3872
3873/*
3874 * Callback to allocate NH hash entry on L3-VNI.
3875 */
2dbad57f 3876static void *zl3vni_nh_alloc(void *p)
b7cfce93
MK		 3877{
3878 const zebra_neigh_t *tmp_n = p;
3879 zebra_neigh_t *n;
3880
3881 n = XCALLOC(MTYPE_NEIGH, sizeof(zebra_neigh_t));
3882 *n = *tmp_n;
3883
3884 return ((void *)n);
2dbad57f 3885}
b7cfce93
MK		 3886
3887/*
3888 * Add neighbor entry.
3889 */
996c9314 3890static zebra_neigh_t *zl3vni_nh_add(zebra_l3vni_t *zl3vni, struct ipaddr *ip,
b7cfce93
MK		 3891 struct ethaddr *mac)
3892{
3893 zebra_neigh_t tmp_n;
3894 zebra_neigh_t *n = NULL;
3895
3896 memset(&tmp_n, 0, sizeof(zebra_neigh_t));
3897 memcpy(&tmp_n.ip, ip, sizeof(struct ipaddr));
3898 n = hash_get(zl3vni->nh_table, &tmp_n, zl3vni_nh_alloc);
3899 assert(n);
3900
85442b09 3901 RB_INIT(host_rb_tree_entry, &n->host_rb);
6134fd82 3902
b7cfce93 3903 memcpy(&n->emac, mac, ETH_ALEN);
2dbad57f 3904 SET_FLAG(n->flags, ZEBRA_NEIGH_REMOTE);
3905 SET_FLAG(n->flags, ZEBRA_NEIGH_REMOTE_NH);
b7cfce93
MK		 3906
3907 return n;
2dbad57f 3908}
b7cfce93
MK		 3909
3910/*
3911 * Delete neighbor entry.
3912 */
996c9314 3913static int zl3vni_nh_del(zebra_l3vni_t *zl3vni, zebra_neigh_t *n)
b7cfce93
MK		 3914{
3915 zebra_neigh_t *tmp_n;
f2a503f0 3916 struct host_rb_entry *hle;
b7cfce93 3917
85442b09
DS		 3918 while (!RB_EMPTY(host_rb_tree_entry, &n->host_rb)) {
3919 hle = RB_ROOT(host_rb_tree_entry, &n->host_rb);
f2a503f0 3920
85442b09 3921 RB_REMOVE(host_rb_tree_entry, &n->host_rb, hle);
f2a503f0
DS		 3922 XFREE(MTYPE_HOST_PREFIX, hle);
3923 }
55aabf6f 3924
b7cfce93
MK		 3925 tmp_n = hash_release(zl3vni->nh_table, n);
3926 if (tmp_n)
3927 XFREE(MTYPE_NEIGH, tmp_n);
3928
3929 return 0;
2dbad57f 3930}
b7cfce93
MK		 3931
3932/*
3933 * Install remote nh as neigh into the kernel.
3934 */
996c9314 3935static int zl3vni_nh_install(zebra_l3vni_t *zl3vni, zebra_neigh_t *n)
b7cfce93 3936{
f7dae312 3937#ifdef GNU_LINUX
68e33151 3938 uint8_t flags;
f7dae312 3939#endif
68e33151
CS		 3940 int ret = 0;
3941
b7cfce93
MK		 3942 if (!is_l3vni_oper_up(zl3vni))
3943 return -1;
3944
996c9314
LB		 3945 if (!(n->flags & ZEBRA_NEIGH_REMOTE)
3946 || !(n->flags & ZEBRA_NEIGH_REMOTE_NH))
b7cfce93 3947 return 0;
68e33151
CS		 3948#ifdef GNU_LINUX
3949 flags = NTF_EXT_LEARNED;
3950 if (n->flags & ZEBRA_NEIGH_ROUTER_FLAG)
3951 flags |= NTF_ROUTER;
3952 ret = kernel_add_neigh(zl3vni->svi_if, &n->ip, &n->emac, flags);
3953#endif
3954 return ret;
2dbad57f 3955}
b7cfce93
MK		 3956
3957/*
3958 * Uninstall remote nh from the kernel.
3959 */
996c9314 3960static int zl3vni_nh_uninstall(zebra_l3vni_t *zl3vni, zebra_neigh_t *n)
b7cfce93 3961{
996c9314
LB		 3962 if (!(n->flags & ZEBRA_NEIGH_REMOTE)
3963 || !(n->flags & ZEBRA_NEIGH_REMOTE_NH))
b7cfce93
MK		 3964 return 0;
3965
fa409e1e 3966 if (!zl3vni->svi_if || !if_is_operative(zl3vni->svi_if))
3967 return 0;
3968
b7cfce93 3969 return kernel_del_neigh(zl3vni->svi_if, &n->ip);
2dbad57f 3970}
3971
3972/* add remote vtep as a neigh entry */
996c9314 3973static int zl3vni_remote_nh_add(zebra_l3vni_t *zl3vni, struct ipaddr *vtep_ip,
6134fd82 3974 struct ethaddr *rmac,
3975 struct prefix *host_prefix)
2dbad57f 3976{
3977 char buf[ETHER_ADDR_STRLEN];
3978 char buf1[INET6_ADDRSTRLEN];
3979 zebra_neigh_t *nh = NULL;
3980
3981 nh = zl3vni_nh_lookup(zl3vni, vtep_ip);
3982 if (!nh) {
3983 nh = zl3vni_nh_add(zl3vni, vtep_ip, rmac);
3984 if (!nh) {
3985
9df414fe 3986 zlog_debug(
2dbad57f 3987 "Failed to add NH as Neigh (IP %s MAC %s L3-VNI %u)",
996c9314
LB		 3988 ipaddr2str(vtep_ip, buf1, sizeof(buf1)),
3989 prefix_mac2str(rmac, buf, sizeof(buf)),
2dbad57f 3990 zl3vni->vni);
3991 return -1;
3992 }
3993
3994 /* install the nh neigh in kernel */
3995 zl3vni_nh_install(zl3vni, nh);
3996 }
6134fd82 3997
f2a503f0 3998 rb_find_or_add_host(&nh->host_rb, host_prefix);
6134fd82 3999
2dbad57f 4000 return 0;
4001}
4002
4003/* handle nh neigh delete */
22e63104 4004static void zl3vni_remote_nh_del(zebra_l3vni_t *zl3vni, zebra_neigh_t *nh,
4005 struct prefix *host_prefix)
2dbad57f 4006{
f2a503f0 4007 rb_delete_host(&nh->host_rb, host_prefix);
2dbad57f 4008
85442b09 4009 if (RB_EMPTY(host_rb_tree_entry, &nh->host_rb)) {
2dbad57f 4010 /* uninstall from kernel */
4011 zl3vni_nh_uninstall(zl3vni, nh);
4012
4013 /* delete the nh entry */
4014 zl3vni_nh_del(zl3vni, nh);
4015 }
2dbad57f 4016}
b7cfce93 4017
3bcbba10 4018/* handle neigh update from kernel - the only thing of interest is to
4019 * readd stale entries.
4020 */
996c9314 4021static int zl3vni_local_nh_add_update(zebra_l3vni_t *zl3vni, struct ipaddr *ip,
d7c0a89a 4022 uint16_t state)
3bcbba10 4023{
c05a738b 4024#ifdef GNU_LINUX
3bcbba10 4025 zebra_neigh_t *n = NULL;
4026
4027 n = zl3vni_nh_lookup(zl3vni, ip);
4028 if (!n)
4029 return 0;
4030
4031 /* all next hop neigh are remote and installed by frr.
4032 * If the kernel has aged this entry, re-install.
4033 */
4034 if (state & NUD_STALE)
4035 zl3vni_nh_install(zl3vni, n);
c05a738b 4036#endif
3bcbba10 4037 return 0;
4038}
4039
8c9b80b9 4040/* handle neigh delete from kernel */
996c9314 4041static int zl3vni_local_nh_del(zebra_l3vni_t *zl3vni, struct ipaddr *ip)
8c9b80b9
MK		 4042{
4043 zebra_neigh_t *n = NULL;
4044
4045 n = zl3vni_nh_lookup(zl3vni, ip);
4046 if (!n)
4047 return 0;
4048
4049 /* all next hop neigh are remote and installed by frr.
4050 * If we get an age out notification for these neigh entries, we have to
523cafc4 4051 * install it back
4052 */
8c9b80b9
MK		 4053 zl3vni_nh_install(zl3vni, n);
4054
4055 return 0;
4056}
4057
b7cfce93
MK		 4058/*
4059 * Hash function for L3 VNI.
4060 */
4061static unsigned int l3vni_hash_keymake(void *p)
4062{
4063 const zebra_l3vni_t *zl3vni = p;
4064
4065 return jhash_1word(zl3vni->vni, 0);
4066}
4067
4068/*
4069 * Compare 2 L3 VNI hash entries.
4070 */
74df8d6d 4071static bool l3vni_hash_cmp(const void *p1, const void *p2)
b7cfce93
MK		 4072{
4073 const zebra_l3vni_t *zl3vni1 = p1;
4074 const zebra_l3vni_t *zl3vni2 = p2;
4075
4076 return (zl3vni1->vni == zl3vni2->vni);
4077}
4078
4079/*
4080 * Callback to allocate L3 VNI hash entry.
4081 */
4082static void *zl3vni_alloc(void *p)
4083{
4084 zebra_l3vni_t *zl3vni = NULL;
4085 const zebra_l3vni_t *tmp_l3vni = p;
4086
4087 zl3vni = XCALLOC(MTYPE_ZL3VNI, sizeof(zebra_l3vni_t));
4088 zl3vni->vni = tmp_l3vni->vni;
4089 return ((void *)zl3vni);
4090}
4091
4092/*
4093 * Look up L3 VNI hash entry.
4094 */
4095static zebra_l3vni_t *zl3vni_lookup(vni_t vni)
4096{
b7cfce93
MK		 4097 zebra_l3vni_t tmp_l3vni;
4098 zebra_l3vni_t *zl3vni = NULL;
4099
b7cfce93
MK		 4100 memset(&tmp_l3vni, 0, sizeof(zebra_l3vni_t));
4101 tmp_l3vni.vni = vni;
89272910 4102 zl3vni = hash_lookup(zrouter.l3vni_table, &tmp_l3vni);
b7cfce93
MK		 4103
4104 return zl3vni;
4105}
4106
4107/*
4108 * Add L3 VNI hash entry.
4109 */
4110static zebra_l3vni_t *zl3vni_add(vni_t vni, vrf_id_t vrf_id)
4111{
4112 zebra_l3vni_t tmp_zl3vni;
b7cfce93
MK		 4113 zebra_l3vni_t *zl3vni = NULL;
4114
b7cfce93
MK		 4115 memset(&tmp_zl3vni, 0, sizeof(zebra_l3vni_t));
4116 tmp_zl3vni.vni = vni;
4117
89272910 4118 zl3vni = hash_get(zrouter.l3vni_table, &tmp_zl3vni, zl3vni_alloc);
b7cfce93
MK		 4119 assert(zl3vni);
4120
4121 zl3vni->vrf_id = vrf_id;
4122 zl3vni->svi_if = NULL;
4123 zl3vni->vxlan_if = NULL;
4124 zl3vni->l2vnis = list_new();
27fa3398 4125 zl3vni->l2vnis->cmp = vni_list_cmp;
b7cfce93
MK		 4126
4127 /* Create hash table for remote RMAC */
996c9314
LB		 4128 zl3vni->rmac_table = hash_create(mac_hash_keymake, mac_cmp,
4129 "Zebra L3-VNI RMAC-Table");
b7cfce93
MK		 4130
4131 /* Create hash table for neighbors */
4132 zl3vni->nh_table = hash_create(neigh_hash_keymake, neigh_cmp,
996c9314 4133 "Zebra L3-VNI next-hop table");
b7cfce93
MK		 4134
4135 return zl3vni;
4136}
4137
4138/*
4139 * Delete L3 VNI hash entry.
4140 */
4141static int zl3vni_del(zebra_l3vni_t *zl3vni)
4142{
b7cfce93
MK		 4143 zebra_l3vni_t *tmp_zl3vni;
4144
b7cfce93 4145 /* free the list of l2vnis */
6a154c88 4146 list_delete(&zl3vni->l2vnis);
b7cfce93
MK		 4147 zl3vni->l2vnis = NULL;
4148
4149 /* Free the rmac table */
4150 hash_free(zl3vni->rmac_table);
4151 zl3vni->rmac_table = NULL;
4152
4153 /* Free the nh table */
4154 hash_free(zl3vni->nh_table);
4155 zl3vni->nh_table = NULL;
4156
4157 /* Free the VNI hash entry and allocated memory. */
89272910 4158 tmp_zl3vni = hash_release(zrouter.l3vni_table, zl3vni);
b7cfce93
MK		 4159 if (tmp_zl3vni)
4160 XFREE(MTYPE_ZL3VNI, tmp_zl3vni);
4161
4162 return 0;
4163}
4164
b7cfce93
MK		 4165static struct interface *zl3vni_map_to_vxlan_if(zebra_l3vni_t *zl3vni)
4166{
4167 struct zebra_ns *zns = NULL;
4168 struct route_node *rn = NULL;
4169 struct interface *ifp = NULL;
4170
4171 /* loop through all vxlan-interface */
4172 zns = zebra_ns_lookup(NS_DEFAULT);
4173 for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
4174
4175 struct zebra_if *zif = NULL;
4176 struct zebra_l2info_vxlan *vxl = NULL;
4177
4178 ifp = (struct interface *)rn->info;
4179 if (!ifp)
4180 continue;
4181
4182 zif = ifp->info;
4183 if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
4184 continue;
4185
4186 vxl = &zif->l2info.vxl;
b67a60d2 4187 if (vxl->vni == zl3vni->vni) {
4188 zl3vni->local_vtep_ip = vxl->vtep_ip;
b7cfce93 4189 return ifp;
b67a60d2 4190 }
b7cfce93
MK		 4191 }
4192
4193 return NULL;
4194}
4195
4196static struct interface *zl3vni_map_to_svi_if(zebra_l3vni_t *zl3vni)
4197{
996c9314 4198 struct zebra_if *zif = NULL; /* zebra_if for vxlan_if */
b7cfce93
MK		 4199 struct zebra_l2info_vxlan *vxl = NULL; /* l2 info for vxlan_if */
4200
2aeb403d 4201 if (!zl3vni)
4202 return NULL;
4203
b7cfce93
MK		 4204 if (!zl3vni->vxlan_if)
4205 return NULL;
4206
4207 zif = zl3vni->vxlan_if->info;
4208 if (!zif)
4209 return NULL;
4210
4211 vxl = &zif->l2info.vxl;
4212
4213 return zvni_map_to_svi(vxl->access_vlan, zif->brslave_info.br_if);
4214}
4215
4216static zebra_l3vni_t *zl3vni_from_vrf(vrf_id_t vrf_id)
4217{
4218 struct zebra_vrf *zvrf = NULL;
4219
4220 zvrf = zebra_vrf_lookup_by_id(vrf_id);
4221 if (!zvrf)
4222 return NULL;
4223
4224 return zl3vni_lookup(zvrf->l3vni);
4225}
4226
4227/*
4228 * Map SVI and associated bridge to a VNI. This is invoked upon getting
4229 * neighbor notifications, to see if they are of interest.
4230 */
4231static zebra_l3vni_t *zl3vni_from_svi(struct interface *ifp,
4232 struct interface *br_if)
4233{
4234 int found = 0;
4235 vlanid_t vid = 0;
d7c0a89a 4236 uint8_t bridge_vlan_aware = 0;
b7cfce93
MK		 4237 zebra_l3vni_t *zl3vni = NULL;
4238 struct zebra_ns *zns = NULL;
4239 struct route_node *rn = NULL;
4240 struct zebra_if *zif = NULL;
4241 struct interface *tmp_if = NULL;
4242 struct zebra_l2info_bridge *br = NULL;
4243 struct zebra_l2info_vxlan *vxl = NULL;
4244
4245 if (!br_if)
4246 return NULL;
4247
4248 /* Make sure the linked interface is a bridge. */
4249 if (!IS_ZEBRA_IF_BRIDGE(br_if))
4250 return NULL;
4251
4252 /* Determine if bridge is VLAN-aware or not */
4253 zif = br_if->info;
4254 assert(zif);
4255 br = &zif->l2info.br;
4256 bridge_vlan_aware = br->vlan_aware;
4257 if (bridge_vlan_aware) {
4258 struct zebra_l2info_vlan *vl;
4259
4260 if (!IS_ZEBRA_IF_VLAN(ifp))
4261 return NULL;
4262
4263 zif = ifp->info;
4264 assert(zif);
4265 vl = &zif->l2info.vl;
4266 vid = vl->vid;
4267 }
4268
4269 /* See if this interface (or interface plus VLAN Id) maps to a VxLAN */
4270 /* TODO: Optimize with a hash. */
4271 zns = zebra_ns_lookup(NS_DEFAULT);
4272 for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) {
4273 tmp_if = (struct interface *)rn->info;
4274 if (!tmp_if)
4275 continue;
4276 zif = tmp_if->info;
4277 if (!zif || zif->zif_type != ZEBRA_IF_VXLAN)
4278 continue;
4279 if (!if_is_operative(tmp_if))
4280 continue;
4281 vxl = &zif->l2info.vxl;
4282
4283 if (zif->brslave_info.br_if != br_if)
4284 continue;
4285
4286 if (!bridge_vlan_aware || vxl->access_vlan == vid) {
4287 found = 1;
4288 break;
4289 }
4290 }
4291
4292 if (!found)
4293 return NULL;
4294
4295 zl3vni = zl3vni_lookup(vxl->vni);
4296 return zl3vni;
4297}
4298
4299/*
4300 * Inform BGP about l3-vni.
4301 */
4302static int zl3vni_send_add_to_client(zebra_l3vni_t *zl3vni)
4303{
4304 struct stream *s = NULL;
4305 struct zserv *client = NULL;
4306 struct ethaddr rmac;
4307 char buf[ETHER_ADDR_STRLEN];
4308
21ccc0cf 4309 client = zserv_find_client(ZEBRA_ROUTE_BGP, 0);
b7cfce93
MK		 4310 /* BGP may not be running. */
4311 if (!client)
4312 return 0;
4313
4314 /* get the rmac */
4315 memset(&rmac, 0, sizeof(struct ethaddr));
4316 zl3vni_get_rmac(zl3vni, &rmac);
4317
1002497a 4318 s = stream_new(ZEBRA_MAX_PACKET_SIZ);
b7cfce93 4319
996c9314 4320 zclient_create_header(s, ZEBRA_L3VNI_ADD, zl3vni_vrf_id(zl3vni));
b7cfce93
MK		 4321 stream_putl(s, zl3vni->vni);
4322 stream_put(s, &rmac, sizeof(struct ethaddr));
b67a60d2 4323 stream_put_in_addr(s, &zl3vni->local_vtep_ip);
c48d9f5f 4324 stream_put(s, &zl3vni->filter, sizeof(int));
b7cfce93
MK		 4325
4326 /* Write packet size. */
4327 stream_putw_at(s, 0, stream_get_endp(s));
4328
4329 if (IS_ZEBRA_DEBUG_VXLAN)
c48d9f5f 4330 zlog_debug(
996c9314
LB		 4331 "Send L3_VNI_ADD %u VRF %s RMAC %s local-ip %s filter %s to %s",
4332 zl3vni->vni, vrf_id_to_name(zl3vni_vrf_id(zl3vni)),
4333 prefix_mac2str(&rmac, buf, sizeof(buf)),
4334 inet_ntoa(zl3vni->local_vtep_ip),
4335 CHECK_FLAG(zl3vni->filter, PREFIX_ROUTES_ONLY)
4336 ? "prefix-routes-only"
4337 : "none",
4338 zebra_route_string(client->proto));
b7cfce93
MK		 4339
4340 client->l3vniadd_cnt++;
21ccc0cf 4341 return zserv_send_message(client, s);
b7cfce93
MK		 4342}
4343
4344/*
4345 * Inform BGP about local l3-VNI deletion.
4346 */
4347static int zl3vni_send_del_to_client(zebra_l3vni_t *zl3vni)
4348{
4349 struct stream *s = NULL;
4350 struct zserv *client = NULL;
4351
21ccc0cf 4352 client = zserv_find_client(ZEBRA_ROUTE_BGP, 0);
b7cfce93
MK		 4353 /* BGP may not be running. */
4354 if (!client)
4355 return 0;
4356
1002497a 4357 s = stream_new(ZEBRA_MAX_PACKET_SIZ);
b7cfce93 4358
996c9314 4359 zclient_create_header(s, ZEBRA_L3VNI_DEL, zl3vni_vrf_id(zl3vni));
b7cfce93
MK		 4360 stream_putl(s, zl3vni->vni);
4361
4362 /* Write packet size. */
4363 stream_putw_at(s, 0, stream_get_endp(s));
4364
4365 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314 4366 zlog_debug("Send L3_VNI_DEL %u VRF %s to %s", zl3vni->vni,
b7cfce93
MK		 4367 vrf_id_to_name(zl3vni_vrf_id(zl3vni)),
4368 zebra_route_string(client->proto));
4369
4370 client->l3vnidel_cnt++;
21ccc0cf 4371 return zserv_send_message(client, s);
b7cfce93
MK		 4372}
4373
4374static void zebra_vxlan_process_l3vni_oper_up(zebra_l3vni_t *zl3vni)
4375{
2aeb403d 4376 if (!zl3vni)
4377 return;
4378
b7cfce93
MK		 4379 /* send l3vni add to BGP */
4380 zl3vni_send_add_to_client(zl3vni);
4381}
4382
4383static void zebra_vxlan_process_l3vni_oper_down(zebra_l3vni_t *zl3vni)
4384{
2aeb403d 4385 if (!zl3vni)
4386 return;
4387
b7cfce93
MK		 4388 /* send l3-vni del to BGP*/
4389 zl3vni_send_del_to_client(zl3vni);
4390}
4391
996c9314 4392static void zvni_add_to_l3vni_list(struct hash_backet *backet, void *ctxt)
b7cfce93 4393{
996c9314
LB		 4394 zebra_vni_t *zvni = (zebra_vni_t *)backet->data;
4395 zebra_l3vni_t *zl3vni = (zebra_l3vni_t *)ctxt;
b7cfce93
MK		 4396
4397 if (zvni->vrf_id == zl3vni_vrf_id(zl3vni))
4398 listnode_add_sort(zl3vni->l2vnis, zvni);
4399}
4400
b7cfce93
MK		 4401/*
4402 * handle transition of vni from l2 to l3 and vice versa
4403 */
996c9314
LB		 4404static int zebra_vxlan_handle_vni_transition(struct zebra_vrf *zvrf, vni_t vni,
4405 int add)
b7cfce93
MK		 4406{
4407 zebra_vni_t *zvni = NULL;
4408
4409 /* There is a possibility that VNI notification was already received
4410 * from kernel and we programmed it as L2-VNI
4411 * In such a case we need to delete this L2-VNI first, so
4412 * that it can be reprogrammed as L3-VNI in the system. It is also
4413 * possible that the vrf-vni mapping is removed from FRR while the vxlan
4414 * interface is still present in kernel. In this case to keep it
523cafc4 4415 * symmetric, we will delete the l3-vni and reprogram it as l2-vni
4416 */
b7cfce93
MK		 4417 if (add) {
4418 /* Locate hash entry */
4419 zvni = zvni_lookup(vni);
4420 if (!zvni)
4421 return 0;
4422
4423 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314 4424 zlog_debug("Del L2-VNI %u - transition to L3-VNI", vni);
b7cfce93
MK		 4425
4426 /* Delete VNI from BGP. */
4427 zvni_send_del_to_client(zvni->vni);
4428
4429 /* Free up all neighbors and MAC, if any. */
4430 zvni_neigh_del_all(zvni, 0, 0, DEL_ALL_NEIGH);
4431 zvni_mac_del_all(zvni, 0, 0, DEL_ALL_MAC);
4432
4433 /* Free up all remote VTEPs, if any. */
4434 zvni_vtep_del_all(zvni, 0);
4435
4436 /* Delete the hash entry. */
4437 if (zvni_del(zvni)) {
e914ccbe 4438 flog_err(EC_ZEBRA_VNI_DEL_FAILED,
1c50c1c0
QY		 4439 "Failed to del VNI hash %p, VNI %u", zvni,
4440 zvni->vni);
b7cfce93
MK		 4441 return -1;
4442 }
4443 } else {
4444 /* TODO_MITESH: This needs to be thought through. We don't have
4445 * enough information at this point to reprogram the vni as
4446 * l2-vni. One way is to store the required info in l3-vni and
523cafc4 4447 * used it solely for this purpose
4448 */
b7cfce93
MK		 4449 }
4450
4451 return 0;
4452}
4453
5e06422c 4454/* delete and uninstall rmac hash entry */
996c9314 4455static void zl3vni_del_rmac_hash_entry(struct hash_backet *backet, void *ctx)
5e06422c
MK		 4456{
4457 zebra_mac_t *zrmac = NULL;
4458 zebra_l3vni_t *zl3vni = NULL;
4459
4460 zrmac = (zebra_mac_t *)backet->data;
4461 zl3vni = (zebra_l3vni_t *)ctx;
4462 zl3vni_rmac_uninstall(zl3vni, zrmac);
4463 zl3vni_rmac_del(zl3vni, zrmac);
4464}
4465
4466/* delete and uninstall nh hash entry */
996c9314 4467static void zl3vni_del_nh_hash_entry(struct hash_backet *backet, void *ctx)
5e06422c
MK		 4468{
4469 zebra_neigh_t *n = NULL;
4470 zebra_l3vni_t *zl3vni = NULL;
4471
4472 n = (zebra_neigh_t *)backet->data;
4473 zl3vni = (zebra_l3vni_t *)ctx;
4474 zl3vni_nh_uninstall(zl3vni, n);
4475 zl3vni_nh_del(zl3vni, n);
4476}
4477
996c9314
LB		 4478static int ip_prefix_send_to_client(vrf_id_t vrf_id, struct prefix *p,
4479 uint16_t cmd)
31310b25
MK		 4480{
4481 struct zserv *client = NULL;
4482 struct stream *s = NULL;
4483 char buf[PREFIX_STRLEN];
4484
21ccc0cf 4485 client = zserv_find_client(ZEBRA_ROUTE_BGP, 0);
31310b25
MK		 4486 /* BGP may not be running. */
4487 if (!client)
4488 return 0;
4489
1002497a 4490 s = stream_new(ZEBRA_MAX_PACKET_SIZ);
31310b25 4491
22bd3e94 4492 zclient_create_header(s, cmd, vrf_id);
31310b25
MK		 4493 stream_put(s, p, sizeof(struct prefix));
4494
4495 /* Write packet size. */
4496 stream_putw_at(s, 0, stream_get_endp(s));
4497
4498 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314 4499 zlog_debug("Send ip prefix %s %s on vrf %s",
31310b25
MK		 4500 prefix2str(p, buf, sizeof(buf)),
4501 (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL",
4502 vrf_id_to_name(vrf_id));
4503
4504 if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD)
4505 client->prefixadd_cnt++;
4506 else
4507 client->prefixdel_cnt++;
4508
21ccc0cf 4509 return zserv_send_message(client, s);
31310b25
MK		 4510}
4511
a9a76262
MK		 4512/* re-add remote rmac if needed */
4513static int zebra_vxlan_readd_remote_rmac(zebra_l3vni_t *zl3vni,
996c9314 4514 struct ethaddr *rmac)
a9a76262
MK		 4515{
4516 char buf[ETHER_ADDR_STRLEN];
4517 zebra_mac_t *zrmac = NULL;
4518
4519 zrmac = zl3vni_rmac_lookup(zl3vni, rmac);
4520 if (!zrmac)
4521 return 0;
4522
4523 if (IS_ZEBRA_DEBUG_VXLAN)
4524 zlog_debug("Del remote RMAC %s L3VNI %u - readd",
996c9314 4525 prefix_mac2str(rmac, buf, sizeof(buf)), zl3vni->vni);
a9a76262
MK		 4526
4527 zl3vni_rmac_install(zl3vni, zrmac);
4528 return 0;
4529}
4530
f07e1c99 4531/* Process a remote MACIP add from BGP. */
4532static void process_remote_macip_add(vni_t vni,
4533 struct ethaddr *macaddr,
9df2b997 4534 uint16_t ipa_len,
f07e1c99 4535 struct ipaddr *ipaddr,
9df2b997 4536 uint8_t flags,
f07e1c99 4537 uint32_t seq,
4538 struct in_addr vtep_ip)
c48d9f5f 4539{
f07e1c99 4540 zebra_vni_t *zvni;
4541 zebra_vtep_t *zvtep;
e22a946a 4542 zebra_mac_t *mac = NULL, *old_mac = NULL;
f07e1c99 4543 zebra_neigh_t *n = NULL;
4544 int update_mac = 0, update_neigh = 0;
4545 char buf[ETHER_ADDR_STRLEN];
4546 char buf1[INET6_ADDRSTRLEN];
4547 struct interface *ifp = NULL;
4548 struct zebra_if *zif = NULL;
e22a946a 4549 struct zebra_vrf *zvrf;
f07e1c99 4550 uint32_t tmp_seq;
a37f4598 4551 bool sticky;
4552 bool remote_gw;
4553 bool is_router;
e22a946a
CS		 4554 bool do_dad = false;
4555 bool is_dup_detect = false;
4556 struct listnode *node = NULL;
4557 struct timeval elapsed = {0, 0};
c48d9f5f 4558
f07e1c99 4559 /* Locate VNI hash entry - expected to exist. */
4560 zvni = zvni_lookup(vni);
4561 if (!zvni) {
4562 zlog_warn("Unknown VNI %u upon remote MACIP ADD", vni);
4563 return;
4564 }
2dbad57f 4565
f07e1c99 4566 ifp = zvni->vxlan_if;
4567 if (ifp)
4568 zif = ifp->info;
4569 if (!ifp ||
4570 !if_is_operative(ifp) ||
4571 !zif ||
4572 !zif->brslave_info.br_if) {
4573 zlog_warn("Ignoring remote MACIP ADD VNI %u, invalid interface state or info",
4574 vni);
2dbad57f 4575 return;
f07e1c99 4576 }
2dbad57f 4577
f07e1c99 4578 /* The remote VTEP specified should normally exist, but it is
4579 * possible that when peering comes up, peer may advertise MACIP
4580 * routes before advertising type-3 routes.
f50dc5e6 4581 */
f07e1c99 4582 zvtep = zvni_vtep_find(zvni, &vtep_ip);
4583 if (!zvtep) {
4584 if (zvni_vtep_add(zvni, &vtep_ip) == NULL) {
4585 flog_err(
e914ccbe 4586 EC_ZEBRA_VTEP_ADD_FAILED,
f07e1c99 4587 "Failed to add remote VTEP, VNI %u zvni %p upon remote MACIP ADD",
4588 vni, zvni);
4589 return;
4590 }
2dbad57f 4591
f07e1c99 4592 zvni_vtep_install(zvni, &vtep_ip);
4593 }
f50dc5e6 4594
a37f4598 4595 sticky = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY);
4596 remote_gw = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW);
4597 is_router = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_ROUTER_FLAG);
2dbad57f 4598
f07e1c99 4599 mac = zvni_mac_lookup(zvni, macaddr);
2dbad57f 4600
f07e1c99 4601 /* Ignore if the mac is already present as a gateway mac */
4602 if (mac &&
4603 CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) &&
4604 CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW)) {
4605 if (IS_ZEBRA_DEBUG_VXLAN)
4606 zlog_debug("Ignore remote MACIP ADD VNI %u MAC %s%s%s as MAC is already configured as gateway MAC",
4607 vni,
4608 prefix_mac2str(macaddr, buf, sizeof(buf)),
4609 ipa_len ? " IP " : "",
4610 ipa_len ?
4611 ipaddr2str(ipaddr, buf1, sizeof(buf1)) : "");
2dbad57f 4612 return;
f07e1c99 4613 }
2dbad57f 4614
e22a946a
CS		 4615 zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id);
4616 if (!zvrf)
4617 return;
4618
f07e1c99 4619 /* check if the remote MAC is unknown or has a change.
4620 * If so, that needs to be updated first. Note that client could
4621 * install MAC and MACIP separately or just install the latter.
4622 */
4623 if (!mac
4624 || !CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)
a37f4598 4625 || sticky != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)
4626 || remote_gw != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)
f07e1c99 4627 || !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &vtep_ip)
4628 || seq != mac->rem_seq)
4629 update_mac = 1;
4630
4631 if (update_mac) {
4632 if (!mac) {
4633 mac = zvni_mac_add(zvni, macaddr);
4634 if (!mac) {
4635 zlog_warn(
4636 "Failed to add MAC %s VNI %u Remote VTEP %s",
4637 prefix_mac2str(macaddr, buf,
4638 sizeof(buf)),
4639 vni, inet_ntoa(vtep_ip));
4640 return;
4641 }
4642
4643 /* Is this MAC created for a MACIP? */
4644 if (ipa_len)
4645 SET_FLAG(mac->flags, ZEBRA_MAC_AUTO);
4646 } else {
4647 const char *mac_type;
4648
4649 /* When host moves but changes its (MAC,IP)
4650 * binding, BGP may install a MACIP entry that
4651 * corresponds to "older" location of the host
4652 * in transient situations (because {IP1,M1}
4653 * is a different route from {IP1,M2}). Check
4654 * the sequence number and ignore this update
4655 * if appropriate.
4656 */
4657 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) {
4658 tmp_seq = mac->loc_seq;
4659 mac_type = "local";
4660 } else {
4661 tmp_seq = mac->rem_seq;
4662 mac_type = "remote";
4663 }
4664 if (seq < tmp_seq) {
4665 if (IS_ZEBRA_DEBUG_VXLAN)
4666 zlog_debug("Ignore remote MACIP ADD VNI %u MAC %s%s%s as existing %s MAC has higher seq %u",
4667 vni,
4668 prefix_mac2str(macaddr,
4669 buf, sizeof(buf)),
4670 ipa_len ? " IP " : "",
4671 ipa_len ?
4672 ipaddr2str(ipaddr,
4673 buf1, sizeof(buf1)) : "",
4674 mac_type,
4675 tmp_seq);
4676 return;
4677 }
4678 }
4679
e22a946a
CS		 4680 /* Check MAC's curent state is local (this is the case
4681 * where MAC has moved from L->R) and check previous
4682 * detection started via local learning.
4683 * RFC-7432: A PE/VTEP that detects a MAC mobility
4684 * event via local learning starts an M-second timer.
4685 *
4686 * VTEP-IP or seq. change along is not considered
4687 * for dup. detection.
4688 */
4689 if ((!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) &&
4690 mac->dad_count)
4691 do_dad = true;
4692
e98e4b88
AK		 4693 /* Remove local MAC from BGP. */
4694 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL))
4695 zvni_mac_send_del_to_client(zvni->vni, macaddr);
4696
f07e1c99 4697 /* Set "auto" and "remote" forwarding info. */
4698 UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL);
4699 memset(&mac->fwd_info, 0, sizeof(mac->fwd_info));
4700 SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE);
4701 mac->fwd_info.r_vtep_ip = vtep_ip;
4702
4703 if (sticky)
4704 SET_FLAG(mac->flags, ZEBRA_MAC_STICKY);
4705 else
4706 UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY);
4707
4708 if (remote_gw)
4709 SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW);
4710 else
4711 UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW);
4712
e22a946a
CS		 4713 if (zvrf->dup_addr_detect && do_dad) {
4714 /* MAC is detected as duplicate, hold on to
4715 * install as remote entry.
4716 */
4717 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) {
4718 if (IS_ZEBRA_DEBUG_VXLAN)
4719 zlog_debug(
4720 "%s: duplicate addr MAC %s skip installing, learn count %u recover time %u",
4721 __PRETTY_FUNCTION__,
4722 prefix_mac2str(macaddr,
4723 buf, sizeof(buf)),
4724 mac->dad_count,
4725 zvrf->dad_freeze_time);
4726 /* Do not install MAC but process neigh
4727 * due to the remote MAC add.
4728 */
4729 goto process_neigh;
4730 }
4731
4732 /* Check if detection time (M-secs) expired.
4733 * Reset learn count and detection start time.
4734 */
4735 monotime_since(&mac->detect_start_time, &elapsed);
4736 if (elapsed.tv_sec > zvrf->dad_time) {
4737 if (IS_ZEBRA_DEBUG_VXLAN)
4738 zlog_debug("%s: duplicate addr MAC %s flags 0%x detection time passed, reset learn count %u",
4739 __PRETTY_FUNCTION__,
4740 prefix_mac2str(macaddr, buf,
4741 sizeof(buf)),
4742 mac->flags, mac->dad_count);
4743 /* Reset learn count but do not start detection
4744 * during remote learn.
4745 * Next local learn event start time wil be
4746 * resetted.
4747 */
4748 mac->dad_count = 0;
4749 } else {
4750 /* Increment detection count while in probe
4751 * window
4752 */
4753 mac->dad_count++;
4754 }
4755
4756 if (mac->dad_count >= zvrf->dad_max_moves) {
4757 flog_warn(EC_ZEBRA_DUP_MAC_DETECTED,
4758 "VNI %u: MAC %s detected as duplicate during remote update, from VTEP %s",
4759 zvni->vni,
4760 prefix_mac2str(&mac->macaddr,
4761 buf, sizeof(buf)),
4762 inet_ntoa(mac->fwd_info.r_vtep_ip));
4763
4764 SET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE);
4765
4766 /* Capture Duplicate detection time */
4767 mac->dad_dup_detect_time = monotime(NULL);
4768
4769 /* Mark all IPs/Neighs as duplicate associcated
4770 * with this MAC
4771 */
4772 for (ALL_LIST_ELEMENTS_RO(mac->neigh_list,
4773 node, n)) {
4774 /* Ony Mark IPs which are Remote */
4775 if (!CHECK_FLAG(n->flags,
4776 ZEBRA_NEIGH_REMOTE))
4777 continue;
4778
4779 SET_FLAG(n->flags,
4780 ZEBRA_NEIGH_DUPLICATE);
4781
4782 /* Capture Duplicate detection time */
4783 n->dad_dup_detect_time = monotime(NULL);
4784
4785 flog_warn(
4786 EC_ZEBRA_DUP_IP_INHERIT_DETECTED,
4787 "VNI %u: MAC %s IP %s detected as duplicate during remote update, inherit duplicate from MAC",
4788 zvni->vni,
4789 prefix_mac2str(&mac->macaddr,
4790 buf, sizeof(buf)),
4791 ipaddr2str(&n->ip, buf1,
4792 sizeof(buf1)));
4793 }
4794
c80a972c
CS		 4795 /* Start auto recovery timer for this
4796 * MAC
4797 */
4798 THREAD_OFF(mac->dad_mac_auto_recovery_timer);
4799 if (zvrf->dad_freeze && zvrf->dad_freeze_time) {
4800 if (IS_ZEBRA_DEBUG_VXLAN)
4801 zlog_debug("%s: duplicate addr MAC %s flags 0%x auto recovery time %u start",
4802 __PRETTY_FUNCTION__,
4803 prefix_mac2str(&mac->macaddr,
4804 buf, sizeof(buf)),
4805 mac->flags,
4806 zvrf->dad_freeze_time);
4807
4808 thread_add_timer(zebrad.master,
4809 zebra_vxlan_dad_mac_auto_recovery_exp,
4810 mac,
4811 zvrf->dad_freeze_time,
4812 &mac->dad_mac_auto_recovery_timer);
4813 }
4814
e22a946a
CS		 4815 if (zvrf->dad_freeze)
4816 is_dup_detect = true;
4817 }
4818
4819 }
4820process_neigh:
f07e1c99 4821 zvni_process_neigh_on_remote_mac_add(zvni, mac);
4822
4823 /* Install the entry. */
e22a946a
CS		 4824 if (!is_dup_detect)
4825 zvni_mac_install(zvni, mac);
f07e1c99 4826 }
4827
4828 /* Update seq number. */
4829 mac->rem_seq = seq;
4830
4831 /* If there is no IP, return after clearing AUTO flag of MAC. */
4832 if (!ipa_len) {
4833 UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO);
4834 return;
4835 }
4836
e22a946a
CS		 4837 /* Reset flag */
4838 do_dad = false;
4839
f07e1c99 4840 /* Check if the remote neighbor itself is unknown or has a
4841 * change. If so, create or update and then install the entry.
4842 */
4843 n = zvni_neigh_lookup(zvni, ipaddr);
4844 if (!n
4845 || !CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)
a37f4598 4846 || is_router != !!CHECK_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG)
f07e1c99 4847 || (memcmp(&n->emac, macaddr, sizeof(*macaddr)) != 0)
4848 || !IPV4_ADDR_SAME(&n->r_vtep_ip, &vtep_ip)
4849 || seq != n->rem_seq)
4850 update_neigh = 1;
4851
4852 if (update_neigh) {
4853 if (!n) {
4854 n = zvni_neigh_add(zvni, ipaddr, macaddr);
4855 if (!n) {
4856 zlog_warn(
4857 "Failed to add Neigh %s MAC %s VNI %u Remote VTEP %s",
4858 ipaddr2str(ipaddr, buf1,
4859 sizeof(buf1)),
4860 prefix_mac2str(macaddr, buf,
4861 sizeof(buf)),
4862 vni, inet_ntoa(vtep_ip));
4863 return;
4864 }
4865
4866 } else {
4867 const char *n_type;
4868
4869 /* When host moves but changes its (MAC,IP)
4870 * binding, BGP may install a MACIP entry that
4871 * corresponds to "older" location of the host
4872 * in transient situations (because {IP1,M1}
4873 * is a different route from {IP1,M2}). Check
4874 * the sequence number and ignore this update
4875 * if appropriate.
4876 */
4877 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) {
4878 tmp_seq = n->loc_seq;
4879 n_type = "local";
4880 } else {
4881 tmp_seq = n->rem_seq;
4882 n_type = "remote";
4883 }
4884 if (seq < tmp_seq) {
4885 if (IS_ZEBRA_DEBUG_VXLAN)
4886 zlog_debug("Ignore remote MACIP ADD VNI %u MAC %s%s%s as existing %s Neigh has higher seq %u",
4887 vni,
4888 prefix_mac2str(macaddr,
4889 buf, sizeof(buf)),
4848ef74
A		 4890 " IP ",
4891 ipaddr2str(ipaddr, buf1, sizeof(buf1)),
f07e1c99 4892 n_type,
4893 tmp_seq);
4894 return;
4895 }
4896 if (memcmp(&n->emac, macaddr, sizeof(*macaddr)) != 0) {
4897 /* MAC change, send a delete for old
4898 * neigh if learnt locally.
4899 */
4900 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL) &&
4901 IS_ZEBRA_NEIGH_ACTIVE(n))
4902 zvni_neigh_send_del_to_client(
4903 zvni->vni, &n->ip,
4904 &n->emac, 0);
4905
4906 /* update neigh list for macs */
4907 old_mac = zvni_mac_lookup(zvni, &n->emac);
4908 if (old_mac) {
4909 listnode_delete(old_mac->neigh_list, n);
fe697c6b 4910 zvni_deref_ip2mac(zvni, old_mac);
f07e1c99 4911 }
4912 listnode_add_sort(mac->neigh_list, n);
4913 memcpy(&n->emac, macaddr, ETH_ALEN);
e22a946a
CS		 4914
4915 /* Check Neigh's curent state is local
4916 * (this is the case where neigh/host has moved
4917 * from L->R) and check previous detction
4918 * started via local learning.
4919 *
4920 * RFC-7432: A PE/VTEP that detects a MAC
4921 * mobilit event via local learning starts
4922 * an M-second timer.
4923 * VTEP-IP or seq. change along is not
4924 * considered for dup. detection.
4925 *
4926 * Mobilty event scenario-B IP-MAC binding
4927 * changed.
4928 */
4929 if ((!CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE))
4930 && n->dad_count)
4931 do_dad = true;
4932
f07e1c99 4933 }
4934 }
4935
4936 /* Set "remote" forwarding info. */
4937 UNSET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL);
4938 n->r_vtep_ip = vtep_ip;
4939 SET_FLAG(n->flags, ZEBRA_NEIGH_REMOTE);
4940
4941 /* Set router flag (R-bit) to this Neighbor entry */
4942 if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_ROUTER_FLAG))
4943 SET_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG);
f190902f 4944 else
4945 UNSET_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG);
f07e1c99 4946
e22a946a
CS		 4947 /* Check old or new MAC detected as duplicate,
4948 * inherit duplicate flag to this neigh.
4949 */
4950 if (zebra_vxlan_ip_inherit_dad_from_mac(zvrf, old_mac,
4951 mac, n)) {
4952 flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED,
4953 "VNI %u: MAC %s IP %s detected as duplicate during remote update, inherit duplicate from MAC",
4954 zvni->vni,
4955 prefix_mac2str(&mac->macaddr, buf, sizeof(buf)),
4956 ipaddr2str(&n->ip, buf1, sizeof(buf1)));
4957 }
4958
4959 if (zvrf->dup_addr_detect) {
4960 /* IP is detected as duplicate or inherit dup
4961 * state, hold on to install as remote entry
4962 * only if freeze is enabled.
4963 */
4964 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DUPLICATE)) {
4965 if (IS_ZEBRA_DEBUG_VXLAN)
4966 zlog_debug(
4967 "%s: duplicate addr MAC %s IP %s skip installing, learn count %u recover time %u",
4968 __PRETTY_FUNCTION__,
4969 prefix_mac2str(macaddr,
4970 buf, sizeof(buf)),
4971 ipaddr2str(ipaddr, buf1,
4972 sizeof(buf1)),
4973 n->dad_count,
4974 zvrf->dad_freeze_time);
4975
4976 if (zvrf->dad_freeze)
4977 is_dup_detect = true;
4978 /* warn-only action, neigh will be installed.
4979 * freeze action, it wil not be installed.
4980 */
4981 goto install_neigh;
4982 }
4983
4984 if (!do_dad)
4985 goto install_neigh;
4986
4987 /* Check if detection time (M-secs) expired.
4988 * Reset learn count and detection start time.
4989 * During remote mac add, count should already be 1
4990 * via local learning.
4991 */
4992 monotime_since(&n->detect_start_time, &elapsed);
4993 if (elapsed.tv_sec > zvrf->dad_time) {
4994 if (IS_ZEBRA_DEBUG_VXLAN)
4995 zlog_debug("%s: duplicate addr MAC %s IP %s flags 0x%x detection time passed, reset learn count %u",
4996 __PRETTY_FUNCTION__,
4997 prefix_mac2str(macaddr, buf,
4998 sizeof(buf)),
4999 ipaddr2str(ipaddr, buf1,
5000 sizeof(buf1)),
5001 n->flags,
5002 n->dad_count);
5003 /* Reset learn count but do not start detection
5004 * during remote learn event.
5005 */
5006 n->dad_count = 0;
5007 } else {
5008 /* Increment detection count while in probe
5009 * window
5010 */
5011 n->dad_count++;
5012 }
5013
5014 if (n->dad_count >= zvrf->dad_max_moves) {
5015 flog_warn(EC_ZEBRA_DUP_IP_DETECTED,
5016 "VNI %u: MAC %s IP %s detected as duplicate during remote update, from VTEP %s",
5017 zvni->vni,
5018 prefix_mac2str(&mac->macaddr,
5019 buf, sizeof(buf)),
5020 ipaddr2str(ipaddr, buf1,
5021 sizeof(buf1)),
5022 inet_ntoa(n->r_vtep_ip));
5023
5024 SET_FLAG(n->flags, ZEBRA_NEIGH_DUPLICATE);
5025
5026 /* Capture Duplicate detection time */
5027 n->dad_dup_detect_time = monotime(NULL);
5028
c80a972c
CS		 5029 /* Start auto recovery timer for this IP */
5030 THREAD_OFF(n->dad_ip_auto_recovery_timer);
5031 if (zvrf->dad_freeze && zvrf->dad_freeze_time) {
5032 if (IS_ZEBRA_DEBUG_VXLAN)
5033 zlog_debug(
5034 "%s: duplicate addr MAC %s IP %s flags 0x%x auto recovery time %u start",
5035 __PRETTY_FUNCTION__,
5036 prefix_mac2str(&mac->macaddr,
5037 buf,
5038 sizeof(buf)),
5039 ipaddr2str(ipaddr, buf1,
5040 sizeof(buf1)),
5041 mac->flags,
5042 zvrf->dad_freeze_time);
5043
5044 thread_add_timer(zebrad.master,
5045 zebra_vxlan_dad_ip_auto_recovery_exp,
5046 n,
5047 zvrf->dad_freeze_time,
5048 &n->dad_ip_auto_recovery_timer);
5049 }
e22a946a
CS		 5050 if (zvrf->dad_freeze)
5051 is_dup_detect = true;
5052 }
5053 }
5054install_neigh:
f07e1c99 5055 /* Install the entry. */
e22a946a
CS		 5056 if (!is_dup_detect)
5057 zvni_neigh_install(zvni, n);
f07e1c99 5058 }
5059
5060 /* Update seq number. */
5061 n->rem_seq = seq;
5062}
5063
5064/* Process a remote MACIP delete from BGP. */
5065static void process_remote_macip_del(vni_t vni,
5066 struct ethaddr *macaddr,
9df2b997 5067 uint16_t ipa_len,
f07e1c99 5068 struct ipaddr *ipaddr,
5069 struct in_addr vtep_ip)
5070{
5071 zebra_vni_t *zvni;
5072 zebra_mac_t *mac = NULL;
5073 zebra_neigh_t *n = NULL;
5074 struct interface *ifp = NULL;
5075 struct zebra_if *zif = NULL;
5076 char buf[ETHER_ADDR_STRLEN];
5077 char buf1[INET6_ADDRSTRLEN];
5078
5079 /* Locate VNI hash entry - expected to exist. */
5080 zvni = zvni_lookup(vni);
5081 if (!zvni) {
5082 if (IS_ZEBRA_DEBUG_VXLAN)
5083 zlog_debug("Unknown VNI %u upon remote MACIP DEL", vni);
5084 return;
5085 }
5086
5087 ifp = zvni->vxlan_if;
5088 if (ifp)
5089 zif = ifp->info;
5090 if (!ifp ||
5091 !if_is_operative(ifp) ||
5092 !zif ||
5093 !zif->brslave_info.br_if) {
5094 if (IS_ZEBRA_DEBUG_VXLAN)
5095 zlog_debug("Ignoring remote MACIP DEL VNI %u, invalid interface state or info",
5096 vni);
5097 return;
5098 }
5099
5100 /* The remote VTEP specified is normally expected to exist, but
5101 * it is possible that the peer may delete the VTEP before deleting
5102 * any MACs referring to the VTEP, in which case the handler (see
5103 * remote_vtep_del) would have already deleted the MACs.
5104 */
5105 if (!zvni_vtep_find(zvni, &vtep_ip))
5106 return;
5107
5108 mac = zvni_mac_lookup(zvni, macaddr);
5109 if (ipa_len)
5110 n = zvni_neigh_lookup(zvni, ipaddr);
5111
5112 if (n && !mac) {
5113 zlog_warn("Failed to locate MAC %s for neigh %s VNI %u upon remote MACIP DEL",
5114 prefix_mac2str(macaddr, buf, sizeof(buf)),
5115 ipaddr2str(ipaddr, buf1, sizeof(buf1)), vni);
5116 return;
5117 }
5118
5119 /* If the remote mac or neighbor doesn't exist there is nothing
5120 * more to do. Otherwise, uninstall the entry and then remove it.
5121 */
5122 if (!mac && !n)
5123 return;
5124
5125 /* Ignore the delete if this mac is a gateway mac-ip */
5126 if (mac
5127 && CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)
5128 && CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) {
5129 zlog_warn(
5130 "Ignore remote MACIP DEL VNI %u MAC %s%s%s as MAC is already configured as gateway MAC",
5131 vni,
5132 prefix_mac2str(macaddr, buf, sizeof(buf)),
5133 ipa_len ? " IP " : "",
5134 ipa_len ?
5135 ipaddr2str(ipaddr, buf1, sizeof(buf1)) : "");
5136 return;
5137 }
5138
5139 /* Uninstall remote neighbor or MAC. */
5140 if (n) {
5141 /* When the MAC changes for an IP, it is possible the
5142 * client may update the new MAC before trying to delete the
5143 * "old" neighbor (as these are two different MACIP routes).
5144 * Do the delete only if the MAC matches.
5145 */
5146 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)
5147 && (memcmp(n->emac.octet, macaddr->octet, ETH_ALEN) == 0)) {
5148 zvni_neigh_uninstall(zvni, n);
5149 zvni_neigh_del(zvni, n);
fe697c6b 5150 zvni_deref_ip2mac(zvni, mac);
f07e1c99 5151 }
5152 } else {
5153 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) {
5154 zvni_process_neigh_on_remote_mac_del(zvni, mac);
f3a930da
AK		 5155 /*
5156 * the remote sequence number in the auto mac entry
5157 * needs to be reset to 0 as the mac entry may have
5158 * been removed on all VTEPs (including
5159 * the originating one)
5160 */
5161 mac->rem_seq = 0;
f07e1c99 5162
fe697c6b 5163 /* If all remote neighbors referencing a remote MAC
5164 * go away, we need to uninstall the MAC.
5165 */
5166 if (remote_neigh_count(mac) == 0) {
d63c1b18 5167 zvni_mac_uninstall(zvni, mac);
fe697c6b 5168 UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE);
5169 }
5170 if (list_isempty(mac->neigh_list))
f07e1c99 5171 zvni_mac_del(zvni, mac);
fe697c6b 5172 else
f07e1c99 5173 SET_FLAG(mac->flags, ZEBRA_MAC_AUTO);
5174 }
5175 }
5176}
5177
5178
b7cfce93
MK		 5179/* Public functions */
5180
c48d9f5f
MK		 5181int is_l3vni_for_prefix_routes_only(vni_t vni)
5182{
5183 zebra_l3vni_t *zl3vni = NULL;
5184
5185 zl3vni = zl3vni_lookup(vni);
5186 if (!zl3vni)
5187 return 0;
5188
5189 return CHECK_FLAG(zl3vni->filter, PREFIX_ROUTES_ONLY) ? 1 : 0;
5190}
5191
2dbad57f 5192/* handle evpn route in vrf table */
996c9314
LB		 5193void zebra_vxlan_evpn_vrf_route_add(vrf_id_t vrf_id, struct ethaddr *rmac,
5194 struct ipaddr *vtep_ip,
5195 struct prefix *host_prefix)
2dbad57f 5196{
5197 zebra_l3vni_t *zl3vni = NULL;
f50dc5e6 5198 struct ipaddr ipv4_vtep;
2dbad57f 5199
5200 zl3vni = zl3vni_from_vrf(vrf_id);
5201 if (!zl3vni || !is_l3vni_oper_up(zl3vni))
5202 return;
5203
3518f352 5204 /*
f50dc5e6
MK		 5205 * add the next hop neighbor -
5206 * neigh to be installed is the ipv6 nexthop neigh
5207 */
3518f352 5208 zl3vni_remote_nh_add(zl3vni, vtep_ip, rmac, host_prefix);
2dbad57f 5209
f50dc5e6
MK		 5210 /*
5211 * if the remote vtep is a ipv4 mapped ipv6 address convert it to ipv4
5212 * address. Rmac is programmed against the ipv4 vtep because we only
5213 * support ipv4 tunnels in the h/w right now
5214 */
5215 memset(&ipv4_vtep, 0, sizeof(struct ipaddr));
5216 ipv4_vtep.ipa_type = IPADDR_V4;
5217 if (vtep_ip->ipa_type == IPADDR_V6)
5218 ipv4_mapped_ipv6_to_ipv4(&vtep_ip->ipaddr_v6,
5219 &(ipv4_vtep.ipaddr_v4));
5220 else
5221 memcpy(&(ipv4_vtep.ipaddr_v4), &vtep_ip->ipaddr_v4,
5222 sizeof(struct in_addr));
5223
3518f352
DS		 5224 /*
5225 * add the rmac - remote rmac to be installed is against the ipv4
f50dc5e6
MK		 5226 * nexthop address
5227 */
3518f352 5228 zl3vni_remote_rmac_add(zl3vni, rmac, &ipv4_vtep, host_prefix);
2dbad57f 5229}
5230
5231/* handle evpn vrf route delete */
22e63104 5232void zebra_vxlan_evpn_vrf_route_del(vrf_id_t vrf_id,
996c9314
LB		 5233 struct ipaddr *vtep_ip,
5234 struct prefix *host_prefix)
2dbad57f 5235{
5236 zebra_l3vni_t *zl3vni = NULL;
22e63104 5237 zebra_neigh_t *nh = NULL;
5238 zebra_mac_t *zrmac = NULL;
2dbad57f 5239
5240 zl3vni = zl3vni_from_vrf(vrf_id);
5e06422c 5241 if (!zl3vni)
2dbad57f 5242 return;
5243
22e63104 5244 /* find the next hop entry and rmac entry */
5245 nh = zl3vni_nh_lookup(zl3vni, vtep_ip);
5246 if (!nh)
5247 return;
5248 zrmac = zl3vni_rmac_lookup(zl3vni, &nh->emac);
5249
2dbad57f 5250 /* delete the next hop entry */
22e63104 5251 zl3vni_remote_nh_del(zl3vni, nh, host_prefix);
2dbad57f 5252
5253 /* delete the rmac entry */
22e63104 5254 if (zrmac)
5255 zl3vni_remote_rmac_del(zl3vni, zrmac, host_prefix);
5256
2dbad57f 5257}
5258
996c9314 5259void zebra_vxlan_print_specific_rmac_l3vni(struct vty *vty, vni_t l3vni,
9f049418 5260 struct ethaddr *rmac, bool use_json)
9aa741ea
MK		 5261{
5262 zebra_l3vni_t *zl3vni = NULL;
5263 zebra_mac_t *zrmac = NULL;
316f4ca4 5264 json_object *json = NULL;
9aa741ea 5265
316f4ca4
MK		 5266 if (!is_evpn_enabled()) {
5267 if (use_json)
5268 vty_out(vty, "{}\n");
9aa741ea 5269 return;
316f4ca4
MK		 5270 }
5271
5272 if (use_json)
5273 json = json_object_new_object();
9aa741ea
MK		 5274
5275 zl3vni = zl3vni_lookup(l3vni);
5276 if (!zl3vni) {
316f4ca4
MK		 5277 if (use_json)
5278 vty_out(vty, "{}\n");
5279 else
0437e105 5280 vty_out(vty, "%% L3-VNI %u doesn't exist\n", l3vni);
9aa741ea
MK		 5281 return;
5282 }
5283
5284 zrmac = zl3vni_rmac_lookup(zl3vni, rmac);
5285 if (!zrmac) {
316f4ca4
MK		 5286 if (use_json)
5287 vty_out(vty, "{}\n");
5288 else
5289 vty_out(vty,
0437e105 5290 "%% Requested RMAC doesn't exist in L3-VNI %u",
316f4ca4 5291 l3vni);
9aa741ea
MK		 5292 return;
5293 }
5294
316f4ca4
MK		 5295 zl3vni_print_rmac(zrmac, vty, json);
5296
5297 if (use_json) {
5298 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5299 json, JSON_C_TO_STRING_PRETTY));
5300 json_object_free(json);
5301 }
9aa741ea 5302}
2dbad57f 5303
9f049418 5304void zebra_vxlan_print_rmacs_l3vni(struct vty *vty, vni_t l3vni, bool use_json)
b7cfce93
MK		 5305{
5306 zebra_l3vni_t *zl3vni;
d7c0a89a 5307 uint32_t num_rmacs;
b7cfce93
MK		 5308 struct rmac_walk_ctx wctx;
5309 json_object *json = NULL;
b7cfce93
MK		 5310
5311 if (!is_evpn_enabled())
5312 return;
5313
5314 zl3vni = zl3vni_lookup(l3vni);
5315 if (!zl3vni) {
5316 if (use_json)
5317 vty_out(vty, "{}\n");
5318 else
5319 vty_out(vty, "%% L3-VNI %u does not exist\n", l3vni);
5320 return;
5321 }
5322 num_rmacs = hashcount(zl3vni->rmac_table);
5323 if (!num_rmacs)
5324 return;
5325
75223c9e 5326 if (use_json)
b7cfce93 5327 json = json_object_new_object();
b7cfce93
MK		 5328
5329 memset(&wctx, 0, sizeof(struct rmac_walk_ctx));
5330 wctx.vty = vty;
75223c9e 5331 wctx.json = json;
b7cfce93 5332 if (!use_json) {
996c9314 5333 vty_out(vty, "Number of Remote RMACs known for this VNI: %u\n",
b7cfce93 5334 num_rmacs);
4cce389e 5335 vty_out(vty, "%-17s %-21s\n", "MAC", "Remote VTEP");
b7cfce93
MK		 5336 } else
5337 json_object_int_add(json, "numRmacs", num_rmacs);
5338
5339 hash_iterate(zl3vni->rmac_table, zl3vni_print_rmac_hash, &wctx);
5340
5341 if (use_json) {
b7cfce93
MK		 5342 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5343 json, JSON_C_TO_STRING_PRETTY));
5344 json_object_free(json);
5345 }
5346}
5347
9f049418 5348void zebra_vxlan_print_rmacs_all_l3vni(struct vty *vty, bool use_json)
b7cfce93 5349{
b7cfce93 5350 json_object *json = NULL;
c0b4eaa4 5351 void *args[2];
b7cfce93
MK		 5352
5353 if (!is_evpn_enabled()) {
5354 if (use_json)
5355 vty_out(vty, "{}\n");
5356 return;
5357 }
5358
b7cfce93
MK		 5359 if (use_json)
5360 json = json_object_new_object();
5361
c0b4eaa4
MK		 5362 args[0] = vty;
5363 args[1] = json;
89272910 5364 hash_iterate(zrouter.l3vni_table,
c0b4eaa4
MK		 5365 (void (*)(struct hash_backet *,
5366 void *))zl3vni_print_rmac_hash_all_vni,
5367 args);
b7cfce93
MK		 5368
5369 if (use_json) {
5370 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5371 json, JSON_C_TO_STRING_PRETTY));
5372 json_object_free(json);
5373 }
5374}
5375
996c9314 5376void zebra_vxlan_print_specific_nh_l3vni(struct vty *vty, vni_t l3vni,
9f049418 5377 struct ipaddr *ip, bool use_json)
9aa741ea
MK		 5378{
5379 zebra_l3vni_t *zl3vni = NULL;
5380 zebra_neigh_t *n = NULL;
c0e519d3 5381 json_object *json = NULL;
9aa741ea 5382
c0e519d3
MK		 5383 if (!is_evpn_enabled()) {
5384 if (use_json)
5385 vty_out(vty, "{}\n");
9aa741ea 5386 return;
c0e519d3
MK		 5387 }
5388
5389 if (use_json)
5390 json = json_object_new_object();
9aa741ea
MK		 5391
5392 zl3vni = zl3vni_lookup(l3vni);
5393 if (!zl3vni) {
c0e519d3
MK		 5394 if (use_json)
5395 vty_out(vty, "{}\n");
5396 else
5397 vty_out(vty, "%% L3-VNI %u does not exist\n", l3vni);
9aa741ea
MK		 5398 return;
5399 }
5400
5401 n = zl3vni_nh_lookup(zl3vni, ip);
5402 if (!n) {
c0e519d3
MK		 5403 if (use_json)
5404 vty_out(vty, "{}\n");
5405 else
5406 vty_out(vty,
5407 "%% Requested next-hop not present for L3-VNI %u",
5408 l3vni);
9aa741ea
MK		 5409 return;
5410 }
5411
c0e519d3
MK		 5412 zl3vni_print_nh(n, vty, json);
5413
5414 if (use_json) {
5415 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5416 json, JSON_C_TO_STRING_PRETTY));
5417 json_object_free(json);
5418 }
9aa741ea
MK		 5419}
5420
9f049418 5421void zebra_vxlan_print_nh_l3vni(struct vty *vty, vni_t l3vni, bool use_json)
b7cfce93 5422{
d7c0a89a 5423 uint32_t num_nh;
2dbad57f 5424 struct nh_walk_ctx wctx;
b7cfce93 5425 json_object *json = NULL;
b7cfce93
MK		 5426 zebra_l3vni_t *zl3vni = NULL;
5427
5428 if (!is_evpn_enabled())
5429 return;
5430
5431 zl3vni = zl3vni_lookup(l3vni);
5432 if (!zl3vni) {
5433 if (use_json)
5434 vty_out(vty, "{}\n");
5435 else
5436 vty_out(vty, "%% L3-VNI %u does not exist\n", l3vni);
5437 return;
5438 }
5439
5440 num_nh = hashcount(zl3vni->nh_table);
5441 if (!num_nh)
5442 return;
5443
9187f600 5444 if (use_json)
b7cfce93 5445 json = json_object_new_object();
b7cfce93 5446
2dbad57f 5447 wctx.vty = vty;
9187f600 5448 wctx.json = json;
b7cfce93 5449 if (!use_json) {
996c9314 5450 vty_out(vty, "Number of NH Neighbors known for this VNI: %u\n",
b7cfce93 5451 num_nh);
4cce389e 5452 vty_out(vty, "%-15s %-17s\n", "IP", "RMAC");
b7cfce93 5453 } else
4cce389e 5454 json_object_int_add(json, "numNextHops", num_nh);
b7cfce93
MK		 5455
5456 hash_iterate(zl3vni->nh_table, zl3vni_print_nh_hash, &wctx);
5457
5458 if (use_json) {
b7cfce93
MK		 5459 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5460 json, JSON_C_TO_STRING_PRETTY));
5461 json_object_free(json);
5462 }
5463}
5464
9f049418 5465void zebra_vxlan_print_nh_all_l3vni(struct vty *vty, bool use_json)
b7cfce93 5466{
2dbad57f 5467 json_object *json = NULL;
32798965 5468 void *args[2];
2dbad57f 5469
5470 if (!is_evpn_enabled()) {
5471 if (use_json)
5472 vty_out(vty, "{}\n");
5473 return;
5474 }
5475
2dbad57f 5476 if (use_json)
5477 json = json_object_new_object();
5478
32798965
MK		 5479 args[0] = vty;
5480 args[1] = json;
89272910 5481 hash_iterate(zrouter.l3vni_table,
32798965
MK		 5482 (void (*)(struct hash_backet *,
5483 void *))zl3vni_print_nh_hash_all_vni,
5484 args);
2dbad57f 5485
5486 if (use_json) {
5487 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5488 json, JSON_C_TO_STRING_PRETTY));
5489 json_object_free(json);
5490 }
b7cfce93
MK		 5491}
5492
5493/*
5494 * Display L3 VNI information (VTY command handler).
5495 */
9f049418 5496void zebra_vxlan_print_l3vni(struct vty *vty, vni_t vni, bool use_json)
b7cfce93
MK		 5497{
5498 void *args[2];
5499 json_object *json = NULL;
5500 zebra_l3vni_t *zl3vni = NULL;
5501
b2ee5a13
MK		 5502 if (!is_evpn_enabled()) {
5503 if (use_json)
5504 vty_out(vty, "{}\n");
b7cfce93 5505 return;
b2ee5a13 5506 }
b7cfce93
MK		 5507
5508 zl3vni = zl3vni_lookup(vni);
5509 if (!zl3vni) {
5510 if (use_json)
5511 vty_out(vty, "{}\n");
5512 else
5513 vty_out(vty, "%% VNI %u does not exist\n", vni);
5514 return;
5515 }
5516
5517 if (use_json)
5518 json = json_object_new_object();
5519
b2ee5a13
MK		 5520 args[0] = vty;
5521 args[1] = json;
b7cfce93
MK		 5522 zl3vni_print(zl3vni, (void *)args);
5523
5524 if (use_json) {
5525 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5526 json, JSON_C_TO_STRING_PRETTY));
5527 json_object_free(json);
5528 }
5529}
5530
4cce389e
MK		 5531void zebra_vxlan_print_vrf_vni(struct vty *vty, struct zebra_vrf *zvrf,
5532 json_object *json_vrfs)
b7cfce93 5533{
4cce389e
MK		 5534 char buf[ETHER_ADDR_STRLEN];
5535 zebra_l3vni_t *zl3vni = NULL;
b7cfce93 5536
4cce389e
MK		 5537 zl3vni = zl3vni_lookup(zvrf->l3vni);
5538 if (!zl3vni)
b7cfce93 5539 return;
b7cfce93 5540
4cce389e
MK		 5541 if (!json_vrfs) {
5542 vty_out(vty, "%-37s %-10u %-20s %-20s %-5s %-18s\n",
996c9314 5543 zvrf_name(zvrf), zl3vni->vni,
4cce389e 5544 zl3vni_vxlan_if_name(zl3vni),
996c9314 5545 zl3vni_svi_if_name(zl3vni), zl3vni_state2str(zl3vni),
4cce389e 5546 zl3vni_rmac2str(zl3vni, buf, sizeof(buf)));
b7cfce93 5547 } else {
4cce389e 5548 json_object *json_vrf = NULL;
9df2b997 5549
4cce389e 5550 json_vrf = json_object_new_object();
996c9314 5551 json_object_string_add(json_vrf, "vrf", zvrf_name(zvrf));
4cce389e
MK		 5552 json_object_int_add(json_vrf, "vni", zl3vni->vni);
5553 json_object_string_add(json_vrf, "vxlanIntf",
5554 zl3vni_vxlan_if_name(zl3vni));
5555 json_object_string_add(json_vrf, "sviIntf",
5556 zl3vni_svi_if_name(zl3vni));
5557 json_object_string_add(json_vrf, "state",
5558 zl3vni_state2str(zl3vni));
996c9314
LB		 5559 json_object_string_add(
5560 json_vrf, "routerMac",
5561 zl3vni_rmac2str(zl3vni, buf, sizeof(buf)));
4cce389e 5562 json_object_array_add(json_vrfs, json_vrf);
b7cfce93
MK		 5563 }
5564}
5565
5566/*
5567 * Display Neighbors for a VNI (VTY command handler).
5568 */
5569void zebra_vxlan_print_neigh_vni(struct vty *vty, struct zebra_vrf *zvrf,
9f049418 5570 vni_t vni, bool use_json)
b7cfce93
MK		 5571{
5572 zebra_vni_t *zvni;
d7c0a89a 5573 uint32_t num_neigh;
b7cfce93
MK		 5574 struct neigh_walk_ctx wctx;
5575 json_object *json = NULL;
5576
5577 if (!is_evpn_enabled())
5578 return;
5579 zvni = zvni_lookup(vni);
5580 if (!zvni) {
5581 if (use_json)
5582 vty_out(vty, "{}\n");
5583 else
5584 vty_out(vty, "%% VNI %u does not exist\n", vni);
5585 return;
5586 }
5587 num_neigh = hashcount(zvni->neigh_table);
5588 if (!num_neigh)
5589 return;
5590
5591 if (use_json)
5592 json = json_object_new_object();
5593
5594 /* Since we have IPv6 addresses to deal with which can vary widely in
5595 * size, we try to be a bit more elegant in display by first computing
5596 * the maximum width.
5597 */
5598 memset(&wctx, 0, sizeof(struct neigh_walk_ctx));
5599 wctx.zvni = zvni;
5600 wctx.vty = vty;
5601 wctx.addr_width = 15;
5602 wctx.json = json;
5603 hash_iterate(zvni->neigh_table, zvni_find_neigh_addr_width, &wctx);
5604
5605 if (!use_json) {
5606 vty_out(vty,
5607 "Number of ARPs (local and remote) known for this VNI: %u\n",
5608 num_neigh);
1a8c5c38 5609 vty_out(vty, "%*s %-6s %-8s %-17s %-21s\n",
5610 -wctx.addr_width, "IP", "Type",
5611 "State", "MAC", "Remote VTEP");
b7cfce93
MK		 5612 } else
5613 json_object_int_add(json, "numArpNd", num_neigh);
5614
5615 hash_iterate(zvni->neigh_table, zvni_print_neigh_hash, &wctx);
5616 if (use_json) {
5617 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5618 json, JSON_C_TO_STRING_PRETTY));
5619 json_object_free(json);
5620 }
5621}
5622
5623/*
5624 * Display neighbors across all VNIs (VTY command handler).
5625 */
5626void zebra_vxlan_print_neigh_all_vni(struct vty *vty, struct zebra_vrf *zvrf,
1374d4db 5627 bool print_dup, bool use_json)
b7cfce93
MK		 5628{
5629 json_object *json = NULL;
1374d4db 5630 void *args[3];
b7cfce93
MK		 5631
5632 if (!is_evpn_enabled())
5633 return;
5634
5635 if (use_json)
5636 json = json_object_new_object();
5637
5638 args[0] = vty;
5639 args[1] = json;
1374d4db
CS		 5640 args[2] = (void *)(ptrdiff_t)print_dup;
5641
b7cfce93
MK		 5642 hash_iterate(zvrf->vni_table,
5643 (void (*)(struct hash_backet *,
5644 void *))zvni_print_neigh_hash_all_vni,
5645 args);
5646 if (use_json) {
5647 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5648 json, JSON_C_TO_STRING_PRETTY));
5649 json_object_free(json);
5650 }
5651}
5652
5653/*
5654 * Display specific neighbor for a VNI, if present (VTY command handler).
5655 */
5656void zebra_vxlan_print_specific_neigh_vni(struct vty *vty,
5657 struct zebra_vrf *zvrf, vni_t vni,
9f049418 5658 struct ipaddr *ip, bool use_json)
b7cfce93
MK		 5659{
5660 zebra_vni_t *zvni;
5661 zebra_neigh_t *n;
5662 json_object *json = NULL;
5663
5664 if (!is_evpn_enabled())
5665 return;
5666 zvni = zvni_lookup(vni);
5667 if (!zvni) {
5668 if (use_json)
cd233079
CS		 5669 vty_out(vty, "{}\n");
5670 else
5671 vty_out(vty, "%% VNI %u does not exist\n", vni);
d62a17ae 5672 return;
5673 }
5674 n = zvni_neigh_lookup(zvni, ip);
5675 if (!n) {
cd233079
CS		 5676 if (!use_json)
5677 vty_out(vty,
5678 "%% Requested neighbor does not exist in VNI %u\n",
5679 vni);
d62a17ae 5680 return;
5681 }
cd233079
CS		 5682 if (use_json)
5683 json = json_object_new_object();
5684
5685 zvni_print_neigh(n, vty, json);
cec2e17d 5686
cd233079
CS		 5687 if (use_json) {
5688 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5689 json, JSON_C_TO_STRING_PRETTY));
5690 json_object_free(json);
5691 }
cec2e17d 5692}
5693
5694/*
5695 * Display neighbors for a VNI from specific VTEP (VTY command handler).
5696 * By definition, these are remote neighbors.
5697 */
d62a17ae 5698void zebra_vxlan_print_neigh_vni_vtep(struct vty *vty, struct zebra_vrf *zvrf,
cd233079 5699 vni_t vni, struct in_addr vtep_ip,
9f049418 5700 bool use_json)
cec2e17d 5701{
d62a17ae 5702 zebra_vni_t *zvni;
d7c0a89a 5703 uint32_t num_neigh;
d62a17ae 5704 struct neigh_walk_ctx wctx;
cd233079 5705 json_object *json = NULL;
cec2e17d 5706
2853fed6 5707 if (!is_evpn_enabled())
d62a17ae 5708 return;
2853fed6 5709 zvni = zvni_lookup(vni);
d62a17ae 5710 if (!zvni) {
cd233079
CS		 5711 if (use_json)
5712 vty_out(vty, "{}\n");
5713 else
5714 vty_out(vty, "%% VNI %u does not exist\n", vni);
d62a17ae 5715 return;
5716 }
5717 num_neigh = hashcount(zvni->neigh_table);
5718 if (!num_neigh)
5719 return;
cec2e17d 5720
d62a17ae 5721 memset(&wctx, 0, sizeof(struct neigh_walk_ctx));
5722 wctx.zvni = zvni;
5723 wctx.vty = vty;
68e33151 5724 wctx.addr_width = 15;
d62a17ae 5725 wctx.flags = SHOW_REMOTE_NEIGH_FROM_VTEP;
5726 wctx.r_vtep_ip = vtep_ip;
cd233079 5727 wctx.json = json;
68e33151 5728 hash_iterate(zvni->neigh_table, zvni_find_neigh_addr_width, &wctx);
d62a17ae 5729 hash_iterate(zvni->neigh_table, zvni_print_neigh_hash, &wctx);
cd233079
CS		 5730
5731 if (use_json) {
5732 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5733 json, JSON_C_TO_STRING_PRETTY));
5734 json_object_free(json);
5735 }
cec2e17d 5736}
5737
1374d4db
CS		 5738/*
5739 * Display Duplicate detected Neighbors for a VNI
5740 * (VTY command handler).
5741 */
5742void zebra_vxlan_print_neigh_vni_dad(struct vty *vty,
5743 struct zebra_vrf *zvrf,
5744 vni_t vni,
5745 bool use_json)
5746{
5747 zebra_vni_t *zvni;
5748 uint32_t num_neigh;
5749 struct neigh_walk_ctx wctx;
5750 json_object *json = NULL;
5751
5752 if (!is_evpn_enabled())
5753 return;
5754
5755 zvni = zvni_lookup(vni);
5756 if (!zvni) {
5757 vty_out(vty, "%% VNI %u does not exist\n", vni);
5758 return;
5759 }
5760
5761 num_neigh = hashcount(zvni->neigh_table);
5762 if (!num_neigh)
5763 return;
5764
5765 num_neigh = num_dup_detected_neighs(zvni);
5766 if (!num_neigh)
5767 return;
5768
5769 if (use_json)
5770 json = json_object_new_object();
5771
5772 /* Since we have IPv6 addresses to deal with which can vary widely in
5773 * size, we try to be a bit more elegant in display by first computing
5774 * the maximum width.
5775 */
5776 memset(&wctx, 0, sizeof(struct neigh_walk_ctx));
5777 wctx.zvni = zvni;
5778 wctx.vty = vty;
5779 wctx.addr_width = 15;
5780 wctx.json = json;
5781 hash_iterate(zvni->neigh_table, zvni_find_neigh_addr_width, &wctx);
5782
5783 if (!use_json) {
5784 vty_out(vty,
5785 "Number of ARPs (local and remote) known for this VNI: %u\n",
5786 num_neigh);
5787 vty_out(vty, "%*s %-6s %-8s %-17s %-21s\n",
5788 -wctx.addr_width, "IP", "Type",
5789 "State", "MAC", "Remote VTEP");
5790 } else
5791 json_object_int_add(json, "numArpNd", num_neigh);
5792
5793 hash_iterate(zvni->neigh_table, zvni_print_dad_neigh_hash, &wctx);
5794
5795 if (use_json) {
5796 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5797 json, JSON_C_TO_STRING_PRETTY));
5798 json_object_free(json);
5799 }
5800}
5801
cec2e17d 5802/*
5803 * Display MACs for a VNI (VTY command handler).
5804 */
d62a17ae 5805void zebra_vxlan_print_macs_vni(struct vty *vty, struct zebra_vrf *zvrf,
9f049418 5806 vni_t vni, bool use_json)
cec2e17d 5807{
d62a17ae 5808 zebra_vni_t *zvni;
d7c0a89a 5809 uint32_t num_macs;
d62a17ae 5810 struct mac_walk_ctx wctx;
cd233079
CS		 5811 json_object *json = NULL;
5812 json_object *json_mac = NULL;
cec2e17d 5813
2853fed6 5814 if (!is_evpn_enabled())
d62a17ae 5815 return;
2853fed6 5816 zvni = zvni_lookup(vni);
d62a17ae 5817 if (!zvni) {
cd233079
CS		 5818 if (use_json)
5819 vty_out(vty, "{}\n");
5820 else
5821 vty_out(vty, "%% VNI %u does not exist\n", vni);
d62a17ae 5822 return;
5823 }
790f8dc5 5824 num_macs = num_valid_macs(zvni);
d62a17ae 5825 if (!num_macs)
5826 return;
cec2e17d 5827
cd233079
CS		 5828 if (use_json) {
5829 json = json_object_new_object();
5830 json_mac = json_object_new_object();
5831 }
5832
d62a17ae 5833 memset(&wctx, 0, sizeof(struct mac_walk_ctx));
5834 wctx.zvni = zvni;
5835 wctx.vty = vty;
cd233079 5836 wctx.json = json_mac;
cec2e17d 5837
cd233079
CS		 5838 if (!use_json) {
5839 vty_out(vty,
5840 "Number of MACs (local and remote) known for this VNI: %u\n",
5841 num_macs);
5842 vty_out(vty, "%-17s %-6s %-21s %-5s\n", "MAC", "Type",
5843 "Intf/Remote VTEP", "VLAN");
5844 } else
5845 json_object_int_add(json, "numMacs", num_macs);
cec2e17d 5846
d62a17ae 5847 hash_iterate(zvni->mac_table, zvni_print_mac_hash, &wctx);
cd233079
CS		 5848
5849 if (use_json) {
5850 json_object_object_add(json, "macs", json_mac);
5851 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5852 json, JSON_C_TO_STRING_PRETTY));
5853 json_object_free(json);
5854 }
cec2e17d 5855}
5856
5857/*
5858 * Display MACs for all VNIs (VTY command handler).
5859 */
cd233079 5860void zebra_vxlan_print_macs_all_vni(struct vty *vty, struct zebra_vrf *zvrf,
1374d4db 5861 bool print_dup, bool use_json)
cec2e17d 5862{
d62a17ae 5863 struct mac_walk_ctx wctx;
cd233079 5864 json_object *json = NULL;
cec2e17d 5865
2853fed6 5866 if (!is_evpn_enabled()) {
cd233079
CS		 5867 if (use_json)
5868 vty_out(vty, "{}\n");
d62a17ae 5869 return;
cd233079
CS		 5870 }
5871 if (use_json)
5872 json = json_object_new_object();
5873
d62a17ae 5874 memset(&wctx, 0, sizeof(struct mac_walk_ctx));
5875 wctx.vty = vty;
cd233079 5876 wctx.json = json;
1374d4db 5877 wctx.print_dup = print_dup;
d62a17ae 5878 hash_iterate(zvrf->vni_table, zvni_print_mac_hash_all_vni, &wctx);
cd233079
CS		 5879
5880 if (use_json) {
5881 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5882 json, JSON_C_TO_STRING_PRETTY));
5883 json_object_free(json);
5884 }
cec2e17d 5885}
5886
5887/*
5888 * Display MACs for all VNIs (VTY command handler).
5889 */
d62a17ae 5890void zebra_vxlan_print_macs_all_vni_vtep(struct vty *vty,
5891 struct zebra_vrf *zvrf,
9f049418 5892 struct in_addr vtep_ip, bool use_json)
cec2e17d 5893{
d62a17ae 5894 struct mac_walk_ctx wctx;
cd233079 5895 json_object *json = NULL;
cec2e17d 5896
2853fed6 5897 if (!is_evpn_enabled())
d62a17ae 5898 return;
cd233079
CS		 5899
5900 if (use_json)
5901 json = json_object_new_object();
5902
d62a17ae 5903 memset(&wctx, 0, sizeof(struct mac_walk_ctx));
5904 wctx.vty = vty;
5905 wctx.flags = SHOW_REMOTE_MAC_FROM_VTEP;
5906 wctx.r_vtep_ip = vtep_ip;
cd233079 5907 wctx.json = json;
d62a17ae 5908 hash_iterate(zvrf->vni_table, zvni_print_mac_hash_all_vni, &wctx);
cd233079
CS		 5909
5910 if (use_json) {
5911 vty_out(vty, "%s\n", json_object_to_json_string_ext(
5912 json, JSON_C_TO_STRING_PRETTY));
5913 json_object_free(json);
5914 }
cec2e17d 5915}
5916
5917/*
5918 * Display specific MAC for a VNI, if present (VTY command handler).
5919 */
d62a17ae 5920void zebra_vxlan_print_specific_mac_vni(struct vty *vty, struct zebra_vrf *zvrf,
24cdbd0d
DS		 5921 vni_t vni, struct ethaddr *macaddr,
5922 bool use_json)
cec2e17d 5923{
d62a17ae 5924 zebra_vni_t *zvni;
5925 zebra_mac_t *mac;
24cdbd0d 5926 json_object *json = NULL;
cec2e17d 5927
2853fed6 5928 if (!is_evpn_enabled())
d62a17ae 5929 return;
24cdbd0d 5930
2853fed6 5931 zvni = zvni_lookup(vni);
d62a17ae 5932 if (!zvni) {
24cdbd0d
DS		 5933 if (use_json)
5934 vty_out(vty, "{}\n");
5935 else
5936 vty_out(vty, "%% VNI %u does not exist\n", vni);
d62a17ae 5937 return;
5938 }
5939 mac = zvni_mac_lookup(zvni, macaddr);
5940 if (!mac) {
24cdbd0d
DS		 5941 if (use_json)
5942 vty_out(vty, "{}\n");
5943 else
5944 vty_out(vty,
5945 "%% Requested MAC does not exist in VNI %u\n",
5946 vni);
d62a17ae 5947 return;
5948 }
cec2e17d 5949
24cdbd0d
DS		 5950 if (use_json)
5951 json = json_object_new_object();
5952
5953 zvni_print_mac(mac, vty, json);
cec2e17d 5954}
5955
1374d4db
CS		 5956/* Print Duplicate MACs per VNI */
5957void zebra_vxlan_print_macs_vni_dad(struct vty *vty,
5958 struct zebra_vrf *zvrf,
5959 vni_t vni, bool use_json)
5960{
5961 zebra_vni_t *zvni;
5962 struct mac_walk_ctx wctx;
5963 uint32_t num_macs;
5964 json_object *json = NULL;
5965 json_object *json_mac = NULL;
5966
5967 if (!is_evpn_enabled())
5968 return;
5969
5970 zvni = zvni_lookup(vni);
5971 if (!zvni) {
5972 vty_out(vty, "%% VNI %u does not exist\n", vni);
5973 return;
5974 }
5975
5976 num_macs = num_valid_macs(zvni);
5977 if (!num_macs)
5978 return;
5979
5980 num_macs = num_dup_detected_macs(zvni);
5981 if (!num_macs)
5982 return;
5983
5984 if (use_json) {
5985 json = json_object_new_object();
5986 json_mac = json_object_new_object();
5987 }
5988
5989 memset(&wctx, 0, sizeof(struct mac_walk_ctx));
5990 wctx.zvni = zvni;
5991 wctx.vty = vty;
5992 wctx.json = json_mac;
5993
5994 if (!use_json) {
5995 vty_out(vty,
5996 "Number of MACs (local and remote) known for this VNI: %u\n",
5997 num_macs);
5998 vty_out(vty, "%-17s %-6s %-21s %-5s\n", "MAC", "Type",
5999 "Intf/Remote VTEP", "VLAN");
6000 } else
6001 json_object_int_add(json, "numMacs", num_macs);
6002
6003 hash_iterate(zvni->mac_table, zvni_print_dad_mac_hash, &wctx);
6004
6005 if (use_json) {
6006 json_object_object_add(json, "macs", json_mac);
6007 vty_out(vty, "%s\n", json_object_to_json_string_ext(
6008 json, JSON_C_TO_STRING_PRETTY));
6009 json_object_free(json);
6010 }
6011
6012}
6013
cec2e17d 6014/*
6015 * Display MACs for a VNI from specific VTEP (VTY command handler).
6016 */
d62a17ae 6017void zebra_vxlan_print_macs_vni_vtep(struct vty *vty, struct zebra_vrf *zvrf,
cd233079 6018 vni_t vni, struct in_addr vtep_ip,
9f049418 6019 bool use_json)
cec2e17d 6020{
d62a17ae 6021 zebra_vni_t *zvni;
d7c0a89a 6022 uint32_t num_macs;
d62a17ae 6023 struct mac_walk_ctx wctx;
cd233079
CS		 6024 json_object *json = NULL;
6025 json_object *json_mac = NULL;
cec2e17d 6026
2853fed6 6027 if (!is_evpn_enabled())
d62a17ae 6028 return;
2853fed6 6029 zvni = zvni_lookup(vni);
d62a17ae 6030 if (!zvni) {
cd233079
CS		 6031 if (use_json)
6032 vty_out(vty, "{}\n");
6033 else
6034 vty_out(vty, "%% VNI %u does not exist\n", vni);
d62a17ae 6035 return;
6036 }
790f8dc5 6037 num_macs = num_valid_macs(zvni);
d62a17ae 6038 if (!num_macs)
6039 return;
cd233079
CS		 6040
6041 if (use_json) {
6042 json = json_object_new_object();
6043 json_mac = json_object_new_object();
6044 }
6045
d62a17ae 6046 memset(&wctx, 0, sizeof(struct mac_walk_ctx));
6047 wctx.zvni = zvni;
6048 wctx.vty = vty;
6049 wctx.flags = SHOW_REMOTE_MAC_FROM_VTEP;
6050 wctx.r_vtep_ip = vtep_ip;
cd233079 6051 wctx.json = json_mac;
d62a17ae 6052 hash_iterate(zvni->mac_table, zvni_print_mac_hash, &wctx);
cd233079
CS		 6053
6054 if (use_json) {
6055 json_object_int_add(json, "numMacs", wctx.count);
6056 if (wctx.count)
6057 json_object_object_add(json, "macs", json_mac);
6058 vty_out(vty, "%s\n", json_object_to_json_string_ext(
6059 json, JSON_C_TO_STRING_PRETTY));
6060 json_object_free(json);
6061 }
cec2e17d 6062}
6063
6064
6065/*
6066 * Display VNI information (VTY command handler).
6067 */
cd233079 6068void zebra_vxlan_print_vni(struct vty *vty, struct zebra_vrf *zvrf, vni_t vni,
9f049418 6069 bool use_json)
cec2e17d 6070{
cd233079
CS		 6071 json_object *json = NULL;
6072 void *args[2];
1f2129ec 6073 zebra_l3vni_t *zl3vni = NULL;
6074 zebra_vni_t *zvni = NULL;
cec2e17d 6075
2853fed6 6076 if (!is_evpn_enabled())
d62a17ae 6077 return;
4cce389e 6078
cd233079
CS		 6079 if (use_json)
6080 json = json_object_new_object();
6081 args[0] = vty;
6082 args[1] = json;
4cce389e 6083
1f2129ec 6084 zl3vni = zl3vni_lookup(vni);
6085 if (zl3vni) {
4cce389e
MK		 6086 zl3vni_print(zl3vni, (void *)args);
6087 } else {
4cce389e
MK		 6088 zvni = zvni_lookup(vni);
6089 if (!zvni) {
6090 if (use_json)
6091 vty_out(vty, "{}\n");
6092 else
6093 vty_out(vty, "%% VNI %u does not exist\n", vni);
6094 return;
6095 }
6096
6097 zvni_print(zvni, (void *)args);
6098 }
6099
cd233079
CS		 6100 if (use_json) {
6101 vty_out(vty, "%s\n", json_object_to_json_string_ext(
6102 json, JSON_C_TO_STRING_PRETTY));
6103 json_object_free(json);
6104 }
cec2e17d 6105}
6106
4cce389e 6107/* Display all global details for EVPN */
088f1098 6108void zebra_vxlan_print_evpn(struct vty *vty, bool uj)
cec2e17d 6109{
4cce389e
MK		 6110 int num_l2vnis = 0;
6111 int num_l3vnis = 0;
d4454626 6112 int num_vnis = 0;
cd233079 6113 json_object *json = NULL;
4cce389e 6114 struct zebra_vrf *zvrf = NULL;
cec2e17d 6115
2853fed6 6116 if (!is_evpn_enabled())
d62a17ae 6117 return;
4cce389e 6118
4cce389e
MK		 6119 zvrf = vrf_info_lookup(VRF_DEFAULT);
6120 if (!zvrf)
6121 return;
6122
89272910 6123 num_l3vnis = hashcount(zrouter.l3vni_table);
4cce389e 6124 num_l2vnis = hashcount(zvrf->vni_table);
d4454626 6125 num_vnis = num_l2vnis + num_l3vnis;
4cce389e
MK		 6126
6127 if (uj) {
cd233079 6128 json = json_object_new_object();
ddd16ed5
MK		 6129 json_object_string_add(json, "advertiseGatewayMacip",
6130 zvrf->advertise_gw_macip ? "Yes" : "No");
d4454626 6131 json_object_int_add(json, "numVnis", num_vnis);
4cce389e
MK		 6132 json_object_int_add(json, "numL2Vnis", num_l2vnis);
6133 json_object_int_add(json, "numL3Vnis", num_l3vnis);
cd233079 6134 } else {
4cce389e
MK		 6135 vty_out(vty, "L2 VNIs: %u\n", num_l2vnis);
6136 vty_out(vty, "L3 VNIs: %u\n", num_l3vnis);
ddd16ed5
MK		 6137 vty_out(vty, "Advertise gateway mac-ip: %s\n",
6138 zvrf->advertise_gw_macip ? "Yes" : "No");
cd233079 6139 }
4cce389e
MK		 6140
6141 if (uj) {
6142 vty_out(vty, "%s\n", json_object_to_json_string_ext(
6143 json, JSON_C_TO_STRING_PRETTY));
6144 json_object_free(json);
6145 }
6146}
6147
6148/*
6149 * Display VNI hash table (VTY command handler).
6150 */
6151void zebra_vxlan_print_vnis(struct vty *vty, struct zebra_vrf *zvrf,
9f049418 6152 bool use_json)
4cce389e
MK		 6153{
6154 json_object *json = NULL;
4cce389e
MK		 6155 void *args[2];
6156
6157 if (!is_evpn_enabled())
6158 return;
6159
4cce389e
MK		 6160 if (use_json)
6161 json = json_object_new_object();
6162 else
996c9314
LB		 6163 vty_out(vty, "%-10s %-4s %-21s %-8s %-8s %-15s %-37s\n", "VNI",
6164 "Type", "VxLAN IF", "# MACs", "# ARPs",
6165 "# Remote VTEPs", "Tenant VRF");
4cce389e 6166
cd233079
CS		 6167 args[0] = vty;
6168 args[1] = json;
6169
4cce389e 6170 /* Display all L2-VNIs */
cd233079
CS		 6171 hash_iterate(zvrf->vni_table,
6172 (void (*)(struct hash_backet *, void *))zvni_print_hash,
6173 args);
6174
4cce389e 6175 /* Display all L3-VNIs */
89272910 6176 hash_iterate(zrouter.l3vni_table,
4cce389e
MK		 6177 (void (*)(struct hash_backet *, void *))zl3vni_print_hash,
6178 args);
6179
cd233079
CS		 6180 if (use_json) {
6181 vty_out(vty, "%s\n", json_object_to_json_string_ext(
6182 json, JSON_C_TO_STRING_PRETTY));
6183 json_object_free(json);
6184 }
cec2e17d 6185}
6186
3950b52c
CS		 6187void zebra_vxlan_dup_addr_detection(ZAPI_HANDLER_ARGS)
6188{
6189 struct stream *s;
6190 int time = 0;
6191 uint32_t max_moves = 0;
6192 uint32_t freeze_time = 0;
6193 bool dup_addr_detect = false;
6194 bool freeze = false;
6195
6196 s = msg;
6197 STREAM_GETL(s, dup_addr_detect);
6198 STREAM_GETL(s, time);
6199 STREAM_GETL(s, max_moves);
6200 STREAM_GETL(s, freeze);
6201 STREAM_GETL(s, freeze_time);
6202
6203 zvrf->dup_addr_detect = dup_addr_detect;
6204 zvrf->dad_time = time;
6205 zvrf->dad_max_moves = max_moves;
6206 zvrf->dad_freeze = freeze;
6207 zvrf->dad_freeze_time = freeze_time;
6208
6209 if (IS_ZEBRA_DEBUG_VXLAN)
6210 zlog_debug(
6211 "%s: duplicate detect %s max_moves %u timeout %u freeze %s freeze_time %u",
6212 __PRETTY_FUNCTION__,
6213 zvrf->dup_addr_detect ? "enable" : "disable",
6214 zvrf->dad_max_moves,
6215 zvrf->dad_time,
6216 zvrf->dad_freeze ? "enable" : "disable",
6217 zvrf->dad_freeze_time);
6218
6219stream_failure:
6220 return;
6221}
6222
2232a77c 6223/*
ee69da27
MK		 6224 * Handle neighbor delete notification from the kernel (on a VLAN device
6225 * / L3 interface). This may result in either the neighbor getting deleted
6226 * from our database or being re-added to the kernel (if it is a valid
2232a77c 6227 * remote neighbor).
6228 */
ee69da27
MK		 6229int zebra_vxlan_handle_kernel_neigh_del(struct interface *ifp,
6230 struct interface *link_if,
6231 struct ipaddr *ip)
d62a17ae 6232{
d62a17ae 6233 char buf[INET6_ADDRSTRLEN];
b6938a74 6234 char buf2[ETHER_ADDR_STRLEN];
b7cfce93
MK		 6235 zebra_neigh_t *n = NULL;
6236 zebra_vni_t *zvni = NULL;
6237 zebra_mac_t *zmac = NULL;
8c9b80b9 6238 zebra_l3vni_t *zl3vni = NULL;
b7cfce93 6239
8c9b80b9 6240 /* check if this is a remote neigh entry corresponding to remote
523cafc4 6241 * next-hop
6242 */
8c9b80b9
MK		 6243 zl3vni = zl3vni_from_svi(ifp, link_if);
6244 if (zl3vni)
6245 return zl3vni_local_nh_del(zl3vni, ip);
d62a17ae 6246
6247 /* We are only interested in neighbors on an SVI that resides on top
6248 * of a VxLAN bridge.
6249 */
b7cfce93 6250 zvni = zvni_from_svi(ifp, link_if);
d62a17ae 6251 if (!zvni)
6252 return 0;
8c9b80b9 6253
d62a17ae 6254 if (!zvni->vxlan_if) {
9df414fe 6255 zlog_debug(
d62a17ae 6256 "VNI %u hash %p doesn't have intf upon local neighbor DEL",
6257 zvni->vni, zvni);
6258 return -1;
6259 }
6260
6261 if (IS_ZEBRA_DEBUG_VXLAN)
8c9b80b9 6262 zlog_debug("Del neighbor %s intf %s(%u) -> L2-VNI %u",
996c9314
LB		 6263 ipaddr2str(ip, buf, sizeof(buf)), ifp->name,
6264 ifp->ifindex, zvni->vni);
d62a17ae 6265
6266 /* If entry doesn't exist, nothing to do. */
6267 n = zvni_neigh_lookup(zvni, ip);
6268 if (!n)
6269 return 0;
6270
b6938a74
MK		 6271 zmac = zvni_mac_lookup(zvni, &n->emac);
6272 if (!zmac) {
6273 if (IS_ZEBRA_DEBUG_VXLAN)
9df414fe 6274 zlog_debug(
2853fed6 6275 "Trying to del a neigh %s without a mac %s on VNI %u",
6276 ipaddr2str(ip, buf, sizeof(buf)),
b6938a74
MK		 6277 prefix_mac2str(&n->emac, buf2, sizeof(buf2)),
6278 zvni->vni);
6279
6280 return 0;
6281 }
6282
d62a17ae 6283 /* If it is a remote entry, the kernel has aged this out or someone has
6284 * deleted it, it needs to be re-installed as Quagga is the owner.
6285 */
6286 if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) {
6287 zvni_neigh_install(zvni, n);
6288 return 0;
6289 }
6290
d62a17ae 6291 /* Remove neighbor from BGP. */
b6938a74 6292 if (IS_ZEBRA_NEIGH_ACTIVE(n))
996c9314 6293 zvni_neigh_send_del_to_client(zvni->vni, &n->ip, &n->emac, 0);
d62a17ae 6294
6295 /* Delete this neighbor entry. */
6296 zvni_neigh_del(zvni, n);
6297
b6938a74
MK		 6298 /* see if the AUTO mac needs to be deleted */
6299 if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_AUTO)
f51d8a27 6300 && !listcount(zmac->neigh_list))
b6938a74
MK		 6301 zvni_mac_del(zvni, zmac);
6302
d62a17ae 6303 return 0;
2232a77c 6304}
6305
6306/*
ee69da27
MK		 6307 * Handle neighbor add or update notification from the kernel (on a VLAN
6308 * device / L3 interface). This is typically for a local neighbor but can
6309 * also be for a remote neighbor (e.g., ageout notification). It could
6310 * also be a "move" scenario.
2232a77c 6311 */
ee69da27
MK		 6312int zebra_vxlan_handle_kernel_neigh_update(struct interface *ifp,
6313 struct interface *link_if,
6314 struct ipaddr *ip,
6315 struct ethaddr *macaddr,
6316 uint16_t state,
a37f4598 6317 bool is_ext,
6318 bool is_router)
d62a17ae 6319{
d62a17ae 6320 char buf[ETHER_ADDR_STRLEN];
6321 char buf2[INET6_ADDRSTRLEN];
b7cfce93 6322 zebra_vni_t *zvni = NULL;
3bcbba10 6323 zebra_l3vni_t *zl3vni = NULL;
6324
6325 /* check if this is a remote neigh entry corresponding to remote
6326 * next-hop
6327 */
6328 zl3vni = zl3vni_from_svi(ifp, link_if);
6329 if (zl3vni)
6330 return zl3vni_local_nh_add_update(zl3vni, ip, state);
b7cfce93 6331
d62a17ae 6332 /* We are only interested in neighbors on an SVI that resides on top
6333 * of a VxLAN bridge.
6334 */
b7cfce93 6335 zvni = zvni_from_svi(ifp, link_if);
d62a17ae 6336 if (!zvni)
6337 return 0;
6338
d62a17ae 6339 if (IS_ZEBRA_DEBUG_VXLAN)
6340 zlog_debug(
54c17425 6341 "Add/Update neighbor %s MAC %s intf %s(%u) state 0x%x %s %s-> L2-VNI %u",
2853fed6 6342 ipaddr2str(ip, buf2, sizeof(buf2)),
d62a17ae 6343 prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name,
a37f4598 6344 ifp->ifindex, state, is_ext ? "ext-learned " : "",
6345 is_router ? "router " : "",
8c9b80b9 6346 zvni->vni);
d62a17ae 6347
ee69da27 6348 /* Is this about a local neighbor or a remote one? */
a37f4598 6349 if (!is_ext)
68e33151 6350 return zvni_local_neigh_update(zvni, ifp, ip, macaddr,
a37f4598 6351 is_router);
b7cfce93 6352
ee69da27 6353 return zvni_remote_neigh_update(zvni, ifp, ip, macaddr, state);
2232a77c 6354}
6355
b682f6de 6356
2232a77c 6357/*
6358 * Handle message from client to delete a remote MACIP for a VNI.
6359 */
89f4e507 6360void zebra_vxlan_remote_macip_del(ZAPI_HANDLER_ARGS)
d62a17ae 6361{
6362 struct stream *s;
6363 vni_t vni;
6364 struct ethaddr macaddr;
6365 struct ipaddr ip;
6366 struct in_addr vtep_ip;
9df2b997 6367 uint16_t l = 0, ipa_len;
d62a17ae 6368 char buf[ETHER_ADDR_STRLEN];
6369 char buf1[INET6_ADDRSTRLEN];
6370
b7cfce93 6371 memset(&macaddr, 0, sizeof(struct ethaddr));
b7cfce93
MK		 6372 memset(&ip, 0, sizeof(struct ipaddr));
6373 memset(&vtep_ip, 0, sizeof(struct in_addr));
6374
1002497a 6375 s = msg;
d62a17ae 6376
89f4e507 6377 while (l < hdr->length) {
d62a17ae 6378 /* Obtain each remote MACIP and process. */
6379 /* Message contains VNI, followed by MAC followed by IP (if any)
6380 * followed by remote VTEP IP.
6381 */
d62a17ae 6382 memset(&ip, 0, sizeof(ip));
ec93aa12
DS		 6383 STREAM_GETL(s, vni);
6384 STREAM_GET(&macaddr.octet, s, ETH_ALEN);
6385 STREAM_GETL(s, ipa_len);
d62a17ae 6386 if (ipa_len) {
6387 ip.ipa_type = (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4
6388 : IPADDR_V6;
ec93aa12 6389 STREAM_GET(&ip.ip.addr, s, ipa_len);
d62a17ae 6390 }
ff8b7eb8 6391 l += 4 + ETH_ALEN + 4 + ipa_len;
ec93aa12 6392 STREAM_GET(&vtep_ip.s_addr, s, IPV4_MAX_BYTELEN);
d62a17ae 6393 l += IPV4_MAX_BYTELEN;
6394
6395 if (IS_ZEBRA_DEBUG_VXLAN)
6396 zlog_debug(
f07e1c99 6397 "Recv MACIP DEL VNI %u MAC %s%s%s Remote VTEP %s from %s",
6398 vni,
d62a17ae 6399 prefix_mac2str(&macaddr, buf, sizeof(buf)),
f07e1c99 6400 ipa_len ? " IP " : "",
6401 ipa_len ?
6402 ipaddr2str(&ip, buf1, sizeof(buf1)) : "",
d62a17ae 6403 inet_ntoa(vtep_ip),
6404 zebra_route_string(client->proto));
6405
f07e1c99 6406 process_remote_macip_del(vni, &macaddr, ipa_len, &ip, vtep_ip);
d62a17ae 6407 }
6408
ec93aa12 6409stream_failure:
8068a649 6410 return;
2232a77c 6411}
6412
6413/*
6414 * Handle message from client to add a remote MACIP for a VNI. This
6415 * could be just the add of a MAC address or the add of a neighbor
6416 * (IP+MAC).
6417 */
89f4e507 6418void zebra_vxlan_remote_macip_add(ZAPI_HANDLER_ARGS)
d62a17ae 6419{
6420 struct stream *s;
6421 vni_t vni;
6422 struct ethaddr macaddr;
6423 struct ipaddr ip;
6424 struct in_addr vtep_ip;
9df2b997 6425 uint16_t l = 0, ipa_len;
f07e1c99 6426 uint8_t flags = 0;
6427 uint32_t seq;
d62a17ae 6428 char buf[ETHER_ADDR_STRLEN];
6429 char buf1[INET6_ADDRSTRLEN];
d62a17ae 6430
b7cfce93 6431 memset(&macaddr, 0, sizeof(struct ethaddr));
b7cfce93
MK		 6432 memset(&ip, 0, sizeof(struct ipaddr));
6433 memset(&vtep_ip, 0, sizeof(struct in_addr));
6434
ec93aa12 6435 if (!EVPN_ENABLED(zvrf)) {
9df414fe 6436 zlog_debug("EVPN not enabled, ignoring remote MACIP ADD");
8068a649 6437 return;
ec93aa12 6438 }
d62a17ae 6439
1002497a 6440 s = msg;
d62a17ae 6441
89f4e507 6442 while (l < hdr->length) {
d62a17ae 6443 /* Obtain each remote MACIP and process. */
6444 /* Message contains VNI, followed by MAC followed by IP (if any)
6445 * followed by remote VTEP IP.
6446 */
d62a17ae 6447 memset(&ip, 0, sizeof(ip));
ec93aa12
DS		 6448 STREAM_GETL(s, vni);
6449 STREAM_GET(&macaddr.octet, s, ETH_ALEN);
6450 STREAM_GETL(s, ipa_len);
d62a17ae 6451 if (ipa_len) {
6452 ip.ipa_type = (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4
6453 : IPADDR_V6;
ec93aa12 6454 STREAM_GET(&ip.ip.addr, s, ipa_len);
d62a17ae 6455 }
ff8b7eb8 6456 l += 4 + ETH_ALEN + 4 + ipa_len;
ec93aa12 6457 STREAM_GET(&vtep_ip.s_addr, s, IPV4_MAX_BYTELEN);
d62a17ae 6458 l += IPV4_MAX_BYTELEN;
6459
ead40654 6460 /* Get flags - sticky mac and/or gateway mac */
2017b3ea 6461 STREAM_GETC(s, flags);
d62a17ae 6462 l++;
f07e1c99 6463 STREAM_GETL(s, seq);
6464 l += 4;
d62a17ae 6465
6466 if (IS_ZEBRA_DEBUG_VXLAN)
6467 zlog_debug(
f07e1c99 6468 "Recv MACIP ADD VNI %u MAC %s%s%s flags 0x%x seq %u VTEP %s from %s",
6469 vni,
d62a17ae 6470 prefix_mac2str(&macaddr, buf, sizeof(buf)),
f07e1c99 6471 ipa_len ? " IP " : "",
6472 ipa_len ?
6473 ipaddr2str(&ip, buf1, sizeof(buf1)) : "",
6474 flags, seq, inet_ntoa(vtep_ip),
d62a17ae 6475 zebra_route_string(client->proto));
6476
f07e1c99 6477 process_remote_macip_add(vni, &macaddr, ipa_len, &ip,
6478 flags, seq, vtep_ip);
d62a17ae 6479 }
6480
ec93aa12 6481stream_failure:
8068a649 6482 return;
13d60d35 6483}
6484
6485/*
2232a77c 6486 * Handle notification of MAC add/update over VxLAN. If the kernel is notifying
6487 * us, this must involve a multihoming scenario. Treat this as implicit delete
6488 * of any prior local MAC.
13d60d35 6489 */
d62a17ae 6490int zebra_vxlan_check_del_local_mac(struct interface *ifp,
6491 struct interface *br_if,
6492 struct ethaddr *macaddr, vlanid_t vid)
13d60d35 6493{
d62a17ae 6494 struct zebra_if *zif;
d62a17ae 6495 struct zebra_l2info_vxlan *vxl;
6496 vni_t vni;
6497 zebra_vni_t *zvni;
6498 zebra_mac_t *mac;
6499 char buf[ETHER_ADDR_STRLEN];
13d60d35 6500
d62a17ae 6501 zif = ifp->info;
6502 assert(zif);
6503 vxl = &zif->l2info.vxl;
6504 vni = vxl->vni;
13d60d35 6505
2853fed6 6506 /* Check if EVPN is enabled. */
6507 if (!is_evpn_enabled())
d62a17ae 6508 return 0;
13d60d35 6509
d62a17ae 6510 /* Locate hash entry; it is expected to exist. */
2853fed6 6511 zvni = zvni_lookup(vni);
d62a17ae 6512 if (!zvni)
6513 return 0;
13d60d35 6514
d62a17ae 6515 /* If entry doesn't exist, nothing to do. */
6516 mac = zvni_mac_lookup(zvni, macaddr);
6517 if (!mac)
6518 return 0;
13d60d35 6519
d62a17ae 6520 /* Is it a local entry? */
6521 if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL))
6522 return 0;
13d60d35 6523
d62a17ae 6524 if (IS_ZEBRA_DEBUG_VXLAN)
6525 zlog_debug(
2853fed6 6526 "Add/update remote MAC %s intf %s(%u) VNI %u - del local",
996c9314
LB		 6527 prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name,
6528 ifp->ifindex, vni);
13d60d35 6529
d62a17ae 6530 /* Remove MAC from BGP. */
e98e4b88 6531 zvni_mac_send_del_to_client(zvni->vni, macaddr);
13d60d35 6532
b6938a74
MK		 6533 /*
6534 * If there are no neigh associated with the mac delete the mac
6535 * else mark it as AUTO for forward reference
6536 */
6537 if (!listcount(mac->neigh_list)) {
6538 zvni_mac_del(zvni, mac);
6539 } else {
6540 UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL);
6541 SET_FLAG(mac->flags, ZEBRA_MAC_AUTO);
6542 }
13d60d35 6543
d62a17ae 6544 return 0;
13d60d35 6545}
6546
6547/*
2232a77c 6548 * Handle remote MAC delete by kernel; readd the remote MAC if we have it.
6549 * This can happen because the remote MAC entries are also added as "dynamic",
6550 * so the kernel can ageout the entry.
13d60d35 6551 */
d62a17ae 6552int zebra_vxlan_check_readd_remote_mac(struct interface *ifp,
6553 struct interface *br_if,
6554 struct ethaddr *macaddr, vlanid_t vid)
13d60d35 6555{
a9a76262
MK		 6556 struct zebra_if *zif = NULL;
6557 struct zebra_l2info_vxlan *vxl = NULL;
d62a17ae 6558 vni_t vni;
a9a76262
MK		 6559 zebra_vni_t *zvni = NULL;
6560 zebra_l3vni_t *zl3vni = NULL;
6561 zebra_mac_t *mac = NULL;
d62a17ae 6562 char buf[ETHER_ADDR_STRLEN];
2232a77c 6563
d62a17ae 6564 zif = ifp->info;
6565 assert(zif);
6566 vxl = &zif->l2info.vxl;
6567 vni = vxl->vni;
2232a77c 6568
2853fed6 6569 /* Check if EVPN is enabled. */
6570 if (!is_evpn_enabled())
d62a17ae 6571 return 0;
2232a77c 6572
a9a76262
MK		 6573 /* check if this is a remote RMAC and readd simillar to remote macs */
6574 zl3vni = zl3vni_lookup(vni);
6575 if (zl3vni)
6576 return zebra_vxlan_readd_remote_rmac(zl3vni, macaddr);
6577
d62a17ae 6578 /* Locate hash entry; it is expected to exist. */
2853fed6 6579 zvni = zvni_lookup(vni);
d62a17ae 6580 if (!zvni)
6581 return 0;
13d60d35 6582
d62a17ae 6583 /* If entry doesn't exist, nothing to do. */
6584 mac = zvni_mac_lookup(zvni, macaddr);
6585 if (!mac)
6586 return 0;
2232a77c 6587
d62a17ae 6588 /* Is it a remote entry? */
6589 if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE))
6590 return 0;
2232a77c 6591
d62a17ae 6592 if (IS_ZEBRA_DEBUG_VXLAN)
2853fed6 6593 zlog_debug("Del remote MAC %s intf %s(%u) VNI %u - readd",
d62a17ae 6594 prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name,
6595 ifp->ifindex, vni);
13d60d35 6596
d62a17ae 6597 zvni_mac_install(zvni, mac);
6598 return 0;
13d60d35 6599}
6600
6601/*
2232a77c 6602 * Handle local MAC delete (on a port or VLAN corresponding to this VNI).
13d60d35 6603 */
d62a17ae 6604int zebra_vxlan_local_mac_del(struct interface *ifp, struct interface *br_if,
6605 struct ethaddr *macaddr, vlanid_t vid)
13d60d35 6606{
d62a17ae 6607 zebra_vni_t *zvni;
6608 zebra_mac_t *mac;
d62a17ae 6609 char buf[ETHER_ADDR_STRLEN];
13d60d35 6610
d62a17ae 6611 /* We are interested in MACs only on ports or (port, VLAN) that
6612 * map to a VNI.
6613 */
6614 zvni = zvni_map_vlan(ifp, br_if, vid);
6615 if (!zvni)
6616 return 0;
6617 if (!zvni->vxlan_if) {
9df414fe
QY		 6618 zlog_debug(
6619 "VNI %u hash %p doesn't have intf upon local MAC DEL",
6620 zvni->vni, zvni);
d62a17ae 6621 return -1;
6622 }
13d60d35 6623
d62a17ae 6624 if (IS_ZEBRA_DEBUG_VXLAN)
f07e1c99 6625 zlog_debug("DEL MAC %s intf %s(%u) VID %u -> VNI %u",
d62a17ae 6626 prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name,
6627 ifp->ifindex, vid, zvni->vni);
2232a77c 6628
d62a17ae 6629 /* If entry doesn't exist, nothing to do. */
6630 mac = zvni_mac_lookup(zvni, macaddr);
6631 if (!mac)
6632 return 0;
2232a77c 6633
d62a17ae 6634 /* Is it a local entry? */
6635 if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL))
6636 return 0;
2232a77c 6637
b6938a74 6638 /* Update all the neigh entries associated with this mac */
2853fed6 6639 zvni_process_neigh_on_local_mac_del(zvni, mac);
b6938a74 6640
f07e1c99 6641 /* Remove MAC from BGP. */
e98e4b88 6642 zvni_mac_send_del_to_client(zvni->vni, macaddr);
f07e1c99 6643
b6938a74
MK		 6644 /*
6645 * If there are no neigh associated with the mac delete the mac
6646 * else mark it as AUTO for forward reference
6647 */
6648 if (!listcount(mac->neigh_list)) {
6649 zvni_mac_del(zvni, mac);
6650 } else {
6651 UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL);
6652 SET_FLAG(mac->flags, ZEBRA_MAC_AUTO);
6653 }
2232a77c 6654
d62a17ae 6655 return 0;
13d60d35 6656}
6657
6658/*
2232a77c 6659 * Handle local MAC add (on a port or VLAN corresponding to this VNI).
13d60d35 6660 */
d62a17ae 6661int zebra_vxlan_local_mac_add_update(struct interface *ifp,
6662 struct interface *br_if,
6663 struct ethaddr *macaddr, vlanid_t vid,
a37f4598 6664 bool sticky)
d62a17ae 6665{
6666 zebra_vni_t *zvni;
6667 zebra_mac_t *mac;
e22a946a 6668 struct zebra_vrf *zvrf;
d62a17ae 6669 char buf[ETHER_ADDR_STRLEN];
f07e1c99 6670 bool mac_sticky = false;
6671 bool inform_client = false;
6672 bool upd_neigh = false;
e22a946a
CS		 6673 zebra_neigh_t *n = NULL;
6674 struct listnode *node = NULL;
6675 struct in_addr vtep_ip = {.s_addr = 0};
6676 struct timeval elapsed = {0, 0};
6677 char buf2[INET6_ADDRSTRLEN];
d62a17ae 6678
6679 /* We are interested in MACs only on ports or (port, VLAN) that
6680 * map to a VNI.
6681 */
6682 zvni = zvni_map_vlan(ifp, br_if, vid);
6683 if (!zvni) {
6684 if (IS_ZEBRA_DEBUG_VXLAN)
6685 zlog_debug(
2853fed6 6686 "Add/Update %sMAC %s intf %s(%u) VID %u, could not find VNI",
6687 sticky ? "sticky " : "",
d62a17ae 6688 prefix_mac2str(macaddr, buf, sizeof(buf)),
6689 ifp->name, ifp->ifindex, vid);
6690 return 0;
6691 }
6692
6693 if (!zvni->vxlan_if) {
9df414fe
QY		 6694 zlog_debug(
6695 "VNI %u hash %p doesn't have intf upon local MAC ADD",
6696 zvni->vni, zvni);
d62a17ae 6697 return -1;
6698 }
6699
e22a946a
CS		 6700 zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id);
6701 if (!zvrf)
6702 return -1;
6703
f07e1c99 6704 /* Check if we need to create or update or it is a NO-OP. */
d62a17ae 6705 mac = zvni_mac_lookup(zvni, macaddr);
f07e1c99 6706 if (!mac) {
6707 if (IS_ZEBRA_DEBUG_VXLAN)
6708 zlog_debug(
6709 "ADD %sMAC %s intf %s(%u) VID %u -> VNI %u",
6710 sticky ? "sticky " : "",
6711 prefix_mac2str(macaddr, buf, sizeof(buf)),
6712 ifp->name, ifp->ifindex, vid, zvni->vni);
d62a17ae 6713
f07e1c99 6714 mac = zvni_mac_add(zvni, macaddr);
6715 if (!mac) {
6716 flog_err(
e914ccbe 6717 EC_ZEBRA_MAC_ADD_FAILED,
f07e1c99 6718 "Failed to add MAC %s intf %s(%u) VID %u VNI %u",
6719 prefix_mac2str(macaddr, buf, sizeof(buf)),
6720 ifp->name, ifp->ifindex, vid, zvni->vni);
6721 return -1;
6722 }
6723 SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL);
6724 mac->fwd_info.local.ifindex = ifp->ifindex;
6725 mac->fwd_info.local.vid = vid;
6726 if (sticky)
6727 SET_FLAG(mac->flags, ZEBRA_MAC_STICKY);
6728 inform_client = true;
6729
6730 } else {
6731 if (IS_ZEBRA_DEBUG_VXLAN)
6732 zlog_debug(
6733 "UPD %sMAC %s intf %s(%u) VID %u -> VNI %u curFlags 0x%x",
6734 sticky ? "sticky " : "",
6735 prefix_mac2str(macaddr, buf, sizeof(buf)),
6736 ifp->name, ifp->ifindex, vid, zvni->vni,
6737 mac->flags);
6738
6739 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) {
6740 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY))
6741 mac_sticky = true;
b6938a74 6742
b8ce75a5 6743 /*
f07e1c99 6744 * Update any changes and if changes are relevant to
6745 * BGP, note it.
b8ce75a5 6746 */
d62a17ae 6747 if (mac_sticky == sticky
6748 && mac->fwd_info.local.ifindex == ifp->ifindex
6749 && mac->fwd_info.local.vid == vid) {
6750 if (IS_ZEBRA_DEBUG_VXLAN)
6751 zlog_debug(
2853fed6 6752 "Add/Update %sMAC %s intf %s(%u) VID %u -> VNI %u, "
d62a17ae 6753 "entry exists and has not changed ",
d62a17ae 6754 sticky ? "sticky " : "",
6755 prefix_mac2str(macaddr, buf,
6756 sizeof(buf)),
6757 ifp->name, ifp->ifindex, vid,
6758 zvni->vni);
6759 return 0;
b6938a74 6760 }
f07e1c99 6761 if (mac_sticky != sticky) {
6762 if (sticky)
6763 SET_FLAG(mac->flags,
6764 ZEBRA_MAC_STICKY);
6765 else
6766 UNSET_FLAG(mac->flags,
6767 ZEBRA_MAC_STICKY);
6768 inform_client = true;
6769 }
6770
6771 memset(&mac->fwd_info, 0, sizeof(mac->fwd_info));
6772 mac->fwd_info.local.ifindex = ifp->ifindex;
6773 mac->fwd_info.local.vid = vid;
6774
6775 } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) ||
6776 CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) {
e22a946a 6777 bool do_dad = false;
f07e1c99 6778
421bb26a 6779 /*
f07e1c99 6780 * MAC has either moved or was "internally" created due
6781 * to a neighbor learn and is now actually learnt. If
6782 * it was learnt as a remote sticky MAC, this is an
6783 * operator error.
421bb26a 6784 */
8f4b98ee 6785 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) {
9df414fe 6786 flog_warn(
e914ccbe 6787 EC_ZEBRA_STICKY_MAC_ALREADY_LEARNT,
9df414fe 6788 "MAC %s already learnt as remote sticky MAC behind VTEP %s VNI %u",
421bb26a
MK		 6789 prefix_mac2str(macaddr, buf,
6790 sizeof(buf)),
6791 inet_ntoa(mac->fwd_info.r_vtep_ip),
6792 zvni->vni);
8f4b98ee
MK		 6793 return 0;
6794 }
d62a17ae 6795
f07e1c99 6796 /* If an actual move, compute MAC's seq number */
e22a946a 6797 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) {
f07e1c99 6798 mac->loc_seq = MAX(mac->rem_seq + 1,
6799 mac->loc_seq);
e22a946a
CS		 6800 vtep_ip = mac->fwd_info.r_vtep_ip;
6801 /* Trigger DAD for remote MAC */
6802 do_dad = true;
6803 }
6804
f07e1c99 6805 UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE);
6806 UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO);
6807 SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL);
6808 memset(&mac->fwd_info, 0, sizeof(mac->fwd_info));
6809 mac->fwd_info.local.ifindex = ifp->ifindex;
6810 mac->fwd_info.local.vid = vid;
6811 if (sticky)
6812 SET_FLAG(mac->flags, ZEBRA_MAC_STICKY);
6813 else
6814 UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY);
6815 /*
6816 * We have to inform BGP of this MAC as well as process
6817 * all neighbors.
6818 */
6819 inform_client = true;
6820 upd_neigh = true;
e22a946a
CS		 6821
6822 if (zvrf->dup_addr_detect && do_dad) {
6823 /* MAC is detected as duplicate, hold on
6824 * advertising to BGP.
6825 */
6826 if (CHECK_FLAG(mac->flags,
6827 ZEBRA_MAC_DUPLICATE)) {
6828 if (IS_ZEBRA_DEBUG_VXLAN)
6829 zlog_debug(
6830 "%s: duplicate addr MAC %s skip update to client, learn count %u recover time %u",
6831 __PRETTY_FUNCTION__,
6832 prefix_mac2str(macaddr,
6833 buf, sizeof(buf)),
6834 mac->dad_count,
6835 zvrf->dad_freeze_time);
6836 /* For duplicate MAC do not update
6837 * client but update neigh due to
6838 * this MAC update.
6839 */
6840 if (zvrf->dad_freeze)
6841 inform_client = false;
6842
6843 goto send_notif;
6844 }
6845
6846 /* Check if detection time (M-secs) expired.
6847 * Reset learn count and detection start time.
6848 */
6849 monotime_since(&mac->detect_start_time,
6850 &elapsed);
6851 if (mac->dad_count == 0 ||
6852 elapsed.tv_sec >= zvrf->dad_time) {
6853
6854 if (IS_ZEBRA_DEBUG_VXLAN)
6855 zlog_debug("%s: duplicate addr MAC %s flags 0x%x detection time passed, reset learn count %u",
6856 __PRETTY_FUNCTION__,
6857 prefix_mac2str(
6858 macaddr, buf,
6859 sizeof(buf)),
6860 mac->flags,
6861 mac->dad_count);
6862
6863 mac->dad_count = 0;
6864 /* Capture start dup. detection time */
6865 monotime(&mac->detect_start_time);
6866 }
6867
6868 /* Increment move count */
6869 mac->dad_count++;
6870
6871 if (mac->dad_count >= zvrf->dad_max_moves) {
6872 flog_warn(EC_ZEBRA_DUP_MAC_DETECTED,
6873 "VNI %u: MAC %s detected as duplicate during local update, last VTEP %s",
6874 zvni->vni,
6875 prefix_mac2str(&mac->macaddr,
6876 buf, sizeof(buf)),
6877 inet_ntoa(vtep_ip));
6878
6879 SET_FLAG(mac->flags,
6880 ZEBRA_MAC_DUPLICATE);
6881
6882 /* Capture Duplicate detection time */
6883 mac->dad_dup_detect_time =
6884 monotime(NULL);
6885
6886 /* Mark all IPs/Neighs as duplicate
6887 * associcated with this MAC
6888 */
6889 for (ALL_LIST_ELEMENTS_RO(
6890 mac->neigh_list,
6891 node, n)) {
6892
6893 /* Ony Mark IPs which are Local
6894 */
6895 if (!CHECK_FLAG(n->flags,
6896 ZEBRA_NEIGH_LOCAL))
6897 continue;
6898
6899 SET_FLAG(n->flags,
6900 ZEBRA_NEIGH_DUPLICATE);
6901
6902 n->dad_dup_detect_time =
6903 monotime(NULL);
6904
6905 flog_warn(
6906 EC_ZEBRA_DUP_IP_INHERIT_DETECTED
6907 ,
6908 "VNI %u: MAC %s IP %s detected as duplicate during local update, inherit duplicate from MAC",
6909 zvni->vni,
6910 prefix_mac2str(&mac->macaddr,
6911 buf, sizeof(buf)),
6912 ipaddr2str(&n->ip, buf2,
6913 sizeof(buf2)));
6914 }
6915
c80a972c
CS		 6916 /* Start auto recovery timer for this
6917 * MAC
6918 */
6919 THREAD_OFF(
6920 mac->dad_mac_auto_recovery_timer);
6921 if (zvrf->dad_freeze &&
6922 zvrf->dad_freeze_time) {
6923 if (IS_ZEBRA_DEBUG_VXLAN)
6924 zlog_debug("%s: duplicate addr MAC %s flags 0x%x auto recovery time %u start",
6925 __PRETTY_FUNCTION__,
6926 prefix_mac2str(
6927 &mac->macaddr,
6928 buf,
6929 sizeof(buf)),
6930 mac->flags,
6931 zvrf->dad_freeze_time);
6932
6933 thread_add_timer(zebrad.master,
6934 zebra_vxlan_dad_mac_auto_recovery_exp,
6935 mac,
6936 zvrf->dad_freeze_time,
6937 &mac->
6938 dad_mac_auto_recovery_timer);
6939 }
6940
e22a946a
CS		 6941 /* Do not inform to client (BGPd),
6942 * upd_neigh for neigh sequence change.
6943 */
6944 if (zvrf->dad_freeze)
6945 inform_client = false;
6946 }
6947 }
d62a17ae 6948 }
6949 }
6950
e22a946a
CS		 6951send_notif:
6952
d62a17ae 6953 /* Inform BGP if required. */
f07e1c99 6954 if (inform_client) {
6955 if (zvni_mac_send_add_to_client(zvni->vni, macaddr,
6956 mac->flags, mac->loc_seq))
6957 return -1;
b6938a74 6958 }
d62a17ae 6959
f07e1c99 6960 /* Process all neighbors associated with this MAC, if required. */
6961 if (upd_neigh)
6962 zvni_process_neigh_on_local_mac_change(zvni, mac, 0);
6963
d62a17ae 6964 return 0;
2232a77c 6965}
13d60d35 6966
6967/*
6968 * Handle message from client to delete a remote VTEP for a VNI.
6969 */
89f4e507 6970void zebra_vxlan_remote_vtep_del(ZAPI_HANDLER_ARGS)
d62a17ae 6971{
6972 struct stream *s;
d7c0a89a 6973 unsigned short l = 0;
d62a17ae 6974 vni_t vni;
6975 struct in_addr vtep_ip;
6976 zebra_vni_t *zvni;
6977 zebra_vtep_t *zvtep;
b5ebdc9b 6978 struct interface *ifp;
6979 struct zebra_if *zif;
d62a17ae 6980
ec93aa12 6981 if (!is_evpn_enabled()) {
9df414fe 6982 zlog_debug(
996c9314
LB		 6983 "%s: EVPN is not enabled yet we have received a vtep del command",
6984 __PRETTY_FUNCTION__);
8068a649 6985 return;
ec93aa12
DS		 6986 }
6987
2853fed6 6988 if (zvrf_id(zvrf) != VRF_DEFAULT) {
9df414fe
QY		 6989 zlog_debug("Recv MACIP DEL for non-default VRF %u",
6990 zvrf_id(zvrf));
8068a649 6991 return;
2853fed6 6992 }
6993
1002497a 6994 s = msg;
d62a17ae 6995
89f4e507 6996 while (l < hdr->length) {
d62a17ae 6997 /* Obtain each remote VTEP and process. */
ec93aa12 6998 STREAM_GETL(s, vni);
d62a17ae 6999 l += 4;
ec93aa12 7000 STREAM_GET(&vtep_ip.s_addr, s, IPV4_MAX_BYTELEN);
d62a17ae 7001 l += IPV4_MAX_BYTELEN;
7002
7003 if (IS_ZEBRA_DEBUG_VXLAN)
2853fed6 7004 zlog_debug("Recv VTEP_DEL %s VNI %u from %s",
7005 inet_ntoa(vtep_ip), vni,
d62a17ae 7006 zebra_route_string(client->proto));
7007
7008 /* Locate VNI hash entry - expected to exist. */
2853fed6 7009 zvni = zvni_lookup(vni);
d62a17ae 7010 if (!zvni) {
7011 if (IS_ZEBRA_DEBUG_VXLAN)
7012 zlog_debug(
7013 "Failed to locate VNI hash upon remote VTEP DEL, "
2853fed6 7014 "VNI %u",
7015 vni);
d62a17ae 7016 continue;
7017 }
7018
b5ebdc9b 7019 ifp = zvni->vxlan_if;
7020 if (!ifp) {
9df414fe 7021 zlog_debug(
60466a63
QY		 7022 "VNI %u hash %p doesn't have intf upon remote VTEP DEL",
7023 zvni->vni, zvni);
b682f6de 7024 continue;
b5ebdc9b 7025 }
7026 zif = ifp->info;
7027
7028 /* If down or not mapped to a bridge, we're done. */
b682f6de 7029 if (!if_is_operative(ifp) || !zif->brslave_info.br_if)
b5ebdc9b 7030 continue;
7031
d62a17ae 7032 /* If the remote VTEP does not exist, there's nothing more to
7033 * do.
7034 * Otherwise, uninstall any remote MACs pointing to this VTEP
7035 * and
7036 * then, the VTEP entry itself and remove it.
7037 */
7038 zvtep = zvni_vtep_find(zvni, &vtep_ip);
7039 if (!zvtep)
7040 continue;
7041
7042 zvni_neigh_del_from_vtep(zvni, 1, &vtep_ip);
7043 zvni_mac_del_from_vtep(zvni, 1, &vtep_ip);
7044 zvni_vtep_uninstall(zvni, &vtep_ip);
7045 zvni_vtep_del(zvni, zvtep);
7046 }
7047
ec93aa12 7048stream_failure:
8068a649 7049 return;
13d60d35 7050}
7051
7052/*
7053 * Handle message from client to add a remote VTEP for a VNI.
7054 */
89f4e507 7055void zebra_vxlan_remote_vtep_add(ZAPI_HANDLER_ARGS)
d62a17ae 7056{
7057 struct stream *s;
d7c0a89a 7058 unsigned short l = 0;
d62a17ae 7059 vni_t vni;
7060 struct in_addr vtep_ip;
7061 zebra_vni_t *zvni;
b5ebdc9b 7062 struct interface *ifp;
7063 struct zebra_if *zif;
d62a17ae 7064
ec93aa12 7065 if (!is_evpn_enabled()) {
9df414fe 7066 zlog_debug(
996c9314
LB		 7067 "%s: EVPN not enabled yet we received a vtep_add zapi call",
7068 __PRETTY_FUNCTION__);
8068a649 7069 return;
ec93aa12
DS		 7070 }
7071
2853fed6 7072 if (zvrf_id(zvrf) != VRF_DEFAULT) {
9df414fe
QY		 7073 zlog_debug("Recv MACIP ADD for non-default VRF %u",
7074 zvrf_id(zvrf));
8068a649 7075 return;
2853fed6 7076 }
d62a17ae 7077
1002497a 7078 s = msg;
d62a17ae 7079
89f4e507 7080 while (l < hdr->length) {
d62a17ae 7081 /* Obtain each remote VTEP and process. */
ec93aa12 7082 STREAM_GETL(s, vni);
d62a17ae 7083 l += 4;
ec93aa12 7084 STREAM_GET(&vtep_ip.s_addr, s, IPV4_MAX_BYTELEN);
d62a17ae 7085 l += IPV4_MAX_BYTELEN;
7086
7087 if (IS_ZEBRA_DEBUG_VXLAN)
2853fed6 7088 zlog_debug("Recv VTEP_ADD %s VNI %u from %s",
7089 inet_ntoa(vtep_ip), vni,
d62a17ae 7090 zebra_route_string(client->proto));
7091
7092 /* Locate VNI hash entry - expected to exist. */
2853fed6 7093 zvni = zvni_lookup(vni);
d62a17ae 7094 if (!zvni) {
af4c2728 7095 flog_err(
e914ccbe 7096 EC_ZEBRA_VTEP_ADD_FAILED,
2853fed6 7097 "Failed to locate VNI hash upon remote VTEP ADD, VNI %u",
7098 vni);
d62a17ae 7099 continue;
7100 }
b5ebdc9b 7101
7102 ifp = zvni->vxlan_if;
7103 if (!ifp) {
af4c2728 7104 flog_err(
e914ccbe 7105 EC_ZEBRA_VTEP_ADD_FAILED,
d62a17ae 7106 "VNI %u hash %p doesn't have intf upon remote VTEP ADD",
7107 zvni->vni, zvni);
7108 continue;
7109 }
7110
b5ebdc9b 7111 zif = ifp->info;
d62a17ae 7112
b5ebdc9b 7113 /* If down or not mapped to a bridge, we're done. */
b682f6de 7114 if (!if_is_operative(ifp) || !zif->brslave_info.br_if)
d62a17ae 7115 continue;
7116
b682f6de 7117 /* If the remote VTEP already exists,
7118 there's nothing more to do. */
b5ebdc9b 7119 if (zvni_vtep_find(zvni, &vtep_ip))
d62a17ae 7120 continue;
7121
7122 if (zvni_vtep_add(zvni, &vtep_ip) == NULL) {
e914ccbe 7123 flog_err(EC_ZEBRA_VTEP_ADD_FAILED,
1c50c1c0
QY		 7124 "Failed to add remote VTEP, VNI %u zvni %p",
7125 vni, zvni);
d62a17ae 7126 continue;
7127 }
7128
7129 zvni_vtep_install(zvni, &vtep_ip);
7130 }
7131
ec93aa12 7132stream_failure:
8068a649 7133 return;
13d60d35 7134}
7135
1a98c087
MK		 7136/*
7137 * Add/Del gateway macip to evpn
7138 * g/w can be:
7139 * 1. SVI interface on a vlan aware bridge
7140 * 2. SVI interface on a vlan unaware bridge
7141 * 3. vrr interface (MACVLAN) associated to a SVI
7142 * We advertise macip routes for an interface if it is associated to VxLan vlan
7143 */
7144int zebra_vxlan_add_del_gw_macip(struct interface *ifp, struct prefix *p,
7145 int add)
7146{
7147 struct ipaddr ip;
7148 struct ethaddr macaddr;
7149 zebra_vni_t *zvni = NULL;
1a98c087
MK		 7150
7151 memset(&ip, 0, sizeof(struct ipaddr));
7152 memset(&macaddr, 0, sizeof(struct ethaddr));
7153
2853fed6 7154 /* Check if EVPN is enabled. */
7155 if (!is_evpn_enabled())
297a21b6
MK		 7156 return 0;
7157
1a98c087
MK		 7158 if (IS_ZEBRA_IF_MACVLAN(ifp)) {
7159 struct interface *svi_if =
7160 NULL; /* SVI corresponding to the MACVLAN */
7161 struct zebra_if *ifp_zif =
7162 NULL; /* Zebra daemon specific info for MACVLAN */
7163 struct zebra_if *svi_if_zif =
7164 NULL; /* Zebra daemon specific info for SVI*/
7165
7166 ifp_zif = ifp->info;
7167 if (!ifp_zif)
7168 return -1;
7169
71349e03
MK		 7170 /*
7171 * for a MACVLAN interface the link represents the svi_if
7172 */
7173 svi_if = if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT),
7174 ifp_zif->link_ifindex);
1a98c087 7175 if (!svi_if) {
9df414fe
QY		 7176 zlog_debug("MACVLAN %s(%u) without link information",
7177 ifp->name, ifp->ifindex);
1a98c087
MK		 7178 return -1;
7179 }
7180
7181 if (IS_ZEBRA_IF_VLAN(svi_if)) {
71349e03
MK		 7182 /*
7183 * If it is a vlan aware bridge then the link gives the
7184 * bridge information
7185 */
7186 struct interface *svi_if_link = NULL;
7187
1a98c087 7188 svi_if_zif = svi_if->info;
71349e03
MK		 7189 if (svi_if_zif) {
7190 svi_if_link = if_lookup_by_index_per_ns(
60466a63
QY		 7191 zebra_ns_lookup(NS_DEFAULT),
7192 svi_if_zif->link_ifindex);
b7cfce93 7193 zvni = zvni_from_svi(svi_if, svi_if_link);
71349e03 7194 }
1a98c087 7195 } else if (IS_ZEBRA_IF_BRIDGE(svi_if)) {
71349e03
MK		 7196 /*
7197 * If it is a vlan unaware bridge then svi is the bridge
7198 * itself
7199 */
b7cfce93 7200 zvni = zvni_from_svi(svi_if, svi_if);
1a98c087
MK		 7201 }
7202 } else if (IS_ZEBRA_IF_VLAN(ifp)) {
7203 struct zebra_if *svi_if_zif =
71349e03
MK		 7204 NULL; /* Zebra daemon specific info for SVI */
7205 struct interface *svi_if_link =
7206 NULL; /* link info for the SVI = bridge info */
1a98c087
MK		 7207
7208 svi_if_zif = ifp->info;
e3bb770c
IS		 7209 if (svi_if_zif) {
7210 svi_if_link = if_lookup_by_index_per_ns(
cef91a18
QY		 7211 zebra_ns_lookup(NS_DEFAULT),
7212 svi_if_zif->link_ifindex);
e3bb770c
IS		 7213 if (svi_if_link)
7214 zvni = zvni_from_svi(ifp, svi_if_link);
7215 }
1a98c087 7216 } else if (IS_ZEBRA_IF_BRIDGE(ifp)) {
b7cfce93 7217 zvni = zvni_from_svi(ifp, ifp);
1a98c087
MK		 7218 }
7219
7220 if (!zvni)
7221 return 0;
7222
7223 if (!zvni->vxlan_if) {
9df414fe
QY		 7224 zlog_debug("VNI %u hash %p doesn't have intf upon MACVLAN up",
7225 zvni->vni, zvni);
1a98c087
MK		 7226 return -1;
7227 }
7228
1a98c087 7229
1a98c087
MK		 7230 memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN);
7231
7232 if (p->family == AF_INET) {
7233 ip.ipa_type = IPADDR_V4;
7234 memcpy(&(ip.ipaddr_v4), &(p->u.prefix4),
7235 sizeof(struct in_addr));
7236 } else if (p->family == AF_INET6) {
7237 ip.ipa_type = IPADDR_V6;
7238 memcpy(&(ip.ipaddr_v6), &(p->u.prefix6),
7239 sizeof(struct in6_addr));
7240 }
7241
7242
7243 if (add)
7244 zvni_gw_macip_add(ifp, zvni, &macaddr, &ip);
7245 else
7246 zvni_gw_macip_del(ifp, zvni, &ip);
7247
7248 return 0;
7249}
7250
2232a77c 7251/*
b7cfce93
MK		 7252 * Handle SVI interface going down.
7253 * SVI can be associated to either L3-VNI or L2-VNI.
7254 * For L2-VNI: At this point, this is a NOP since
7255 * the kernel deletes the neighbor entries on this SVI (if any).
7256 * We only need to update the vrf corresponding to zvni.
7257 * For L3-VNI: L3-VNI is operationally down, update mac-ip routes and delete
7258 * from bgp
2232a77c 7259 */
d62a17ae 7260int zebra_vxlan_svi_down(struct interface *ifp, struct interface *link_if)
2232a77c 7261{
b7cfce93
MK		 7262 zebra_l3vni_t *zl3vni = NULL;
7263
7264 zl3vni = zl3vni_from_svi(ifp, link_if);
7265 if (zl3vni) {
7266
7267 /* process l3-vni down */
7268 zebra_vxlan_process_l3vni_oper_down(zl3vni);
7269
7270 /* remove association with svi-if */
7271 zl3vni->svi_if = NULL;
7272 } else {
7273 zebra_vni_t *zvni = NULL;
7274
7275 /* since we dont have svi corresponding to zvni, we associate it
7276 * to default vrf. Note: the corresponding neigh entries on the
7277 * SVI would have already been deleted */
7278 zvni = zvni_from_svi(ifp, link_if);
7279 if (zvni) {
7280 zvni->vrf_id = VRF_DEFAULT;
7281
7282 /* update the tenant vrf in BGP */
7283 zvni_send_add_to_client(zvni);
7284 }
7285 }
d62a17ae 7286 return 0;
2232a77c 7287}
7288
7289/*
b7cfce93
MK		 7290 * Handle SVI interface coming up.
7291 * SVI can be associated to L3-VNI (l3vni vxlan interface) or L2-VNI (l2-vni
7292 * vxlan intf).
7293 * For L2-VNI: we need to install any remote neighbors entried (used for
7294 * apr-suppression)
7295 * For L3-VNI: SVI will be used to get the rmac to be used with L3-VNI
2232a77c 7296 */
d62a17ae 7297int zebra_vxlan_svi_up(struct interface *ifp, struct interface *link_if)
2232a77c 7298{
b7cfce93
MK		 7299 zebra_vni_t *zvni = NULL;
7300 zebra_l3vni_t *zl3vni = NULL;
2232a77c 7301
b7cfce93
MK		 7302 zl3vni = zl3vni_from_svi(ifp, link_if);
7303 if (zl3vni) {
2232a77c 7304
b7cfce93
MK		 7305 /* associate with svi */
7306 zl3vni->svi_if = ifp;
2232a77c 7307
b7cfce93
MK		 7308 /* process oper-up */
7309 if (is_l3vni_oper_up(zl3vni))
7310 zebra_vxlan_process_l3vni_oper_up(zl3vni);
7311 } else {
7312
7313 /* process SVI up for l2-vni */
7314 struct neigh_walk_ctx n_wctx;
7315
7316 zvni = zvni_from_svi(ifp, link_if);
7317 if (!zvni)
7318 return 0;
7319
7320 if (!zvni->vxlan_if) {
9df414fe 7321 zlog_debug(
43e52561
QY		 7322 "VNI %u hash %p doesn't have intf upon SVI up",
7323 zvni->vni, zvni);
b7cfce93
MK		 7324 return -1;
7325 }
7326
7327 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314
LB		 7328 zlog_debug(
7329 "SVI %s(%u) VNI %u VRF %s is UP, installing neighbors",
7330 ifp->name, ifp->ifindex, zvni->vni,
7331 vrf_id_to_name(ifp->vrf_id));
2232a77c 7332
b7cfce93
MK		 7333 /* update the vrf information for l2-vni and inform bgp */
7334 zvni->vrf_id = ifp->vrf_id;
7335 zvni_send_add_to_client(zvni);
7336
7337 /* Install any remote neighbors for this VNI. */
7338 memset(&n_wctx, 0, sizeof(struct neigh_walk_ctx));
7339 n_wctx.zvni = zvni;
996c9314 7340 hash_iterate(zvni->neigh_table, zvni_install_neigh_hash,
b7cfce93
MK		 7341 &n_wctx);
7342 }
2232a77c 7343
d62a17ae 7344 return 0;
2232a77c 7345}
7346
13d60d35 7347/*
b7cfce93 7348 * Handle VxLAN interface down
13d60d35 7349 */
d62a17ae 7350int zebra_vxlan_if_down(struct interface *ifp)
13d60d35 7351{
d62a17ae 7352 vni_t vni;
b7cfce93
MK		 7353 struct zebra_if *zif = NULL;
7354 struct zebra_l2info_vxlan *vxl = NULL;
643215ce 7355 zebra_l3vni_t *zl3vni = NULL;
7356 zebra_vni_t *zvni;
13d60d35 7357
2853fed6 7358 /* Check if EVPN is enabled. */
7359 if (!is_evpn_enabled())
d62a17ae 7360 return 0;
13d60d35 7361
d62a17ae 7362 zif = ifp->info;
7363 assert(zif);
7364 vxl = &zif->l2info.vxl;
7365 vni = vxl->vni;
13d60d35 7366
643215ce 7367 zl3vni = zl3vni_lookup(vni);
7368 if (zl3vni) {
b7cfce93 7369 /* process-if-down for l3-vni */
b7cfce93 7370 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314
LB		 7371 zlog_debug("Intf %s(%u) L3-VNI %u is DOWN", ifp->name,
7372 ifp->ifindex, vni);
b7cfce93 7373
b7cfce93 7374 zebra_vxlan_process_l3vni_oper_down(zl3vni);
b7cfce93
MK		 7375 } else {
7376 /* process if-down for l2-vni */
b7cfce93 7377 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314
LB		 7378 zlog_debug("Intf %s(%u) L2-VNI %u is DOWN", ifp->name,
7379 ifp->ifindex, vni);
13d60d35 7380
b7cfce93
MK		 7381 /* Locate hash entry; it is expected to exist. */
7382 zvni = zvni_lookup(vni);
7383 if (!zvni) {
9df414fe 7384 zlog_debug(
b7cfce93
MK		 7385 "Failed to locate VNI hash at DOWN, IF %s(%u) VNI %u",
7386 ifp->name, ifp->ifindex, vni);
7387 return -1;
7388 }
13d60d35 7389
b7cfce93 7390 assert(zvni->vxlan_if == ifp);
13d60d35 7391
b7cfce93
MK		 7392 /* Delete this VNI from BGP. */
7393 zvni_send_del_to_client(zvni->vni);
2232a77c 7394
b7cfce93
MK		 7395 /* Free up all neighbors and MACs, if any. */
7396 zvni_neigh_del_all(zvni, 1, 0, DEL_ALL_NEIGH);
7397 zvni_mac_del_all(zvni, 1, 0, DEL_ALL_MAC);
13d60d35 7398
b7cfce93
MK		 7399 /* Free up all remote VTEPs, if any. */
7400 zvni_vtep_del_all(zvni, 1);
7401 }
d62a17ae 7402 return 0;
13d60d35 7403}
7404
7405/*
7406 * Handle VxLAN interface up - update BGP if required.
7407 */
d62a17ae 7408int zebra_vxlan_if_up(struct interface *ifp)
13d60d35 7409{
d62a17ae 7410 vni_t vni;
b7cfce93
MK		 7411 struct zebra_if *zif = NULL;
7412 struct zebra_l2info_vxlan *vxl = NULL;
643215ce 7413 zebra_vni_t *zvni = NULL;
7414 zebra_l3vni_t *zl3vni = NULL;
13d60d35 7415
2853fed6 7416 /* Check if EVPN is enabled. */
7417 if (!is_evpn_enabled())
d62a17ae 7418 return 0;
13d60d35 7419
d62a17ae 7420 zif = ifp->info;
7421 assert(zif);
7422 vxl = &zif->l2info.vxl;
7423 vni = vxl->vni;
13d60d35 7424
643215ce 7425 zl3vni = zl3vni_lookup(vni);
7426 if (zl3vni) {
13d60d35 7427
b7cfce93 7428 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314
LB		 7429 zlog_debug("Intf %s(%u) L3-VNI %u is UP", ifp->name,
7430 ifp->ifindex, vni);
13d60d35 7431
b7cfce93 7432 /* we need to associate with SVI, if any, we can associate with
523cafc4 7433 * svi-if only after association with vxlan-intf is complete
7434 */
b7cfce93
MK		 7435 zl3vni->svi_if = zl3vni_map_to_svi_if(zl3vni);
7436
7437 if (is_l3vni_oper_up(zl3vni))
7438 zebra_vxlan_process_l3vni_oper_up(zl3vni);
7439 } else {
7440 /* Handle L2-VNI add */
b7cfce93
MK		 7441 struct interface *vlan_if = NULL;
7442
7443 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314
LB		 7444 zlog_debug("Intf %s(%u) L2-VNI %u is UP", ifp->name,
7445 ifp->ifindex, vni);
b7cfce93
MK		 7446
7447 /* Locate hash entry; it is expected to exist. */
7448 zvni = zvni_lookup(vni);
7449 if (!zvni) {
9df414fe 7450 zlog_debug(
b7cfce93
MK		 7451 "Failed to locate VNI hash at UP, IF %s(%u) VNI %u",
7452 ifp->name, ifp->ifindex, vni);
7453 return -1;
7454 }
7455
7456 assert(zvni->vxlan_if == ifp);
7457 vlan_if = zvni_map_to_svi(vxl->access_vlan,
7458 zif->brslave_info.br_if);
7459 if (vlan_if) {
7460 zvni->vrf_id = vlan_if->vrf_id;
7461 zl3vni = zl3vni_from_vrf(vlan_if->vrf_id);
7462 if (zl3vni)
7463 listnode_add_sort(zl3vni->l2vnis, zvni);
7464 }
7465
7466 /* If part of a bridge, inform BGP about this VNI. */
7467 /* Also, read and populate local MACs and neighbors. */
7468 if (zif->brslave_info.br_if) {
7469 zvni_send_add_to_client(zvni);
7470 zvni_read_mac_neigh(zvni, ifp);
7471 }
d62a17ae 7472 }
13d60d35 7473
d62a17ae 7474 return 0;
13d60d35 7475}
7476
7477/*
7478 * Handle VxLAN interface delete. Locate and remove entry in hash table
7479 * and update BGP, if required.
7480 */
d62a17ae 7481int zebra_vxlan_if_del(struct interface *ifp)
13d60d35 7482{
d62a17ae 7483 vni_t vni;
b7cfce93
MK		 7484 struct zebra_if *zif = NULL;
7485 struct zebra_l2info_vxlan *vxl = NULL;
643215ce 7486 zebra_vni_t *zvni = NULL;
7487 zebra_l3vni_t *zl3vni = NULL;
13d60d35 7488
2853fed6 7489 /* Check if EVPN is enabled. */
7490 if (!is_evpn_enabled())
d62a17ae 7491 return 0;
13d60d35 7492
d62a17ae 7493 zif = ifp->info;
7494 assert(zif);
7495 vxl = &zif->l2info.vxl;
7496 vni = vxl->vni;
13d60d35 7497
643215ce 7498 zl3vni = zl3vni_lookup(vni);
7499 if (zl3vni) {
b7cfce93
MK		 7500
7501 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314
LB		 7502 zlog_debug("Del L3-VNI %u intf %s(%u)", vni, ifp->name,
7503 ifp->ifindex);
13d60d35 7504
b7cfce93
MK		 7505 /* process oper-down for l3-vni */
7506 zebra_vxlan_process_l3vni_oper_down(zl3vni);
2232a77c 7507
b7cfce93 7508 /* remove the association with vxlan_if */
b67a60d2 7509 memset(&zl3vni->local_vtep_ip, 0, sizeof(struct in_addr));
b7cfce93
MK		 7510 zl3vni->vxlan_if = NULL;
7511 } else {
13d60d35 7512
b7cfce93 7513 /* process if-del for l2-vni*/
b7cfce93 7514 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314
LB		 7515 zlog_debug("Del L2-VNI %u intf %s(%u)", vni, ifp->name,
7516 ifp->ifindex);
b7cfce93
MK		 7517
7518 /* Locate hash entry; it is expected to exist. */
7519 zvni = zvni_lookup(vni);
7520 if (!zvni) {
9df414fe 7521 zlog_debug(
b7cfce93
MK		 7522 "Failed to locate VNI hash at del, IF %s(%u) VNI %u",
7523 ifp->name, ifp->ifindex, vni);
7524 return 0;
7525 }
7526
7527 /* remove from l3-vni list */
7528 zl3vni = zl3vni_from_vrf(zvni->vrf_id);
7529 if (zl3vni)
7530 listnode_delete(zl3vni->l2vnis, zvni);
7531
7532 /* Delete VNI from BGP. */
7533 zvni_send_del_to_client(zvni->vni);
7534
7535 /* Free up all neighbors and MAC, if any. */
7536 zvni_neigh_del_all(zvni, 0, 0, DEL_ALL_NEIGH);
7537 zvni_mac_del_all(zvni, 0, 0, DEL_ALL_MAC);
7538
7539 /* Free up all remote VTEPs, if any. */
7540 zvni_vtep_del_all(zvni, 0);
7541
7542 /* Delete the hash entry. */
7543 if (zvni_del(zvni)) {
e914ccbe 7544 flog_err(EC_ZEBRA_VNI_DEL_FAILED,
1c50c1c0
QY		 7545 "Failed to del VNI hash %p, IF %s(%u) VNI %u",
7546 zvni, ifp->name, ifp->ifindex, zvni->vni);
b7cfce93
MK		 7547 return -1;
7548 }
d62a17ae 7549 }
d62a17ae 7550 return 0;
13d60d35 7551}
7552
7553/*
7554 * Handle VxLAN interface update - change to tunnel IP, master or VLAN.
7555 */
d7c0a89a 7556int zebra_vxlan_if_update(struct interface *ifp, uint16_t chgflags)
d62a17ae 7557{
d62a17ae 7558 vni_t vni;
b7cfce93
MK		 7559 struct zebra_if *zif = NULL;
7560 struct zebra_l2info_vxlan *vxl = NULL;
643215ce 7561 zebra_vni_t *zvni = NULL;
7562 zebra_l3vni_t *zl3vni = NULL;
d62a17ae 7563
2853fed6 7564 /* Check if EVPN is enabled. */
7565 if (!is_evpn_enabled())
d62a17ae 7566 return 0;
7567
7568 zif = ifp->info;
7569 assert(zif);
7570 vxl = &zif->l2info.vxl;
7571 vni = vxl->vni;
7572
643215ce 7573 zl3vni = zl3vni_lookup(vni);
7574 if (zl3vni) {
af026ae4 7575
b7cfce93
MK		 7576 if (IS_ZEBRA_DEBUG_VXLAN)
7577 zlog_debug(
7578 "Update L3-VNI %u intf %s(%u) VLAN %u local IP %s master %u chg 0x%x",
996c9314
LB		 7579 vni, ifp->name, ifp->ifindex, vxl->access_vlan,
7580 inet_ntoa(vxl->vtep_ip),
b7cfce93
MK		 7581 zif->brslave_info.bridge_ifindex, chgflags);
7582
7583 /* Removed from bridge? Cleanup and return */
7584 if ((chgflags & ZEBRA_VXLIF_MASTER_CHANGE)
7585 && (zif->brslave_info.bridge_ifindex == IFINDEX_INTERNAL)) {
7586 zebra_vxlan_process_l3vni_oper_down(zl3vni);
7587 return 0;
7588 }
7589
7590 /* access-vlan change - process oper down, associate with new
523cafc4 7591 * svi_if and then process oper up again
7592 */
b7cfce93
MK		 7593 if (chgflags & ZEBRA_VXLIF_VLAN_CHANGE) {
7594 if (if_is_operative(ifp)) {
7595 zebra_vxlan_process_l3vni_oper_down(zl3vni);
7596 zl3vni->svi_if = NULL;
7597 zl3vni->svi_if = zl3vni_map_to_svi_if(zl3vni);
bca63dc8 7598 zl3vni->local_vtep_ip = vxl->vtep_ip;
b7cfce93
MK		 7599 if (is_l3vni_oper_up(zl3vni))
7600 zebra_vxlan_process_l3vni_oper_up(
996c9314 7601 zl3vni);
b7cfce93
MK		 7602 }
7603 }
d62a17ae 7604
12eeac84
MK		 7605 /*
7606 * local-ip change - process oper down, associate with new
7607 * local-ip and then process oper up again
7608 */
7609 if (chgflags & ZEBRA_VXLIF_LOCAL_IP_CHANGE) {
7610 if (if_is_operative(ifp)) {
7611 zebra_vxlan_process_l3vni_oper_down(zl3vni);
7612 zl3vni->local_vtep_ip = vxl->vtep_ip;
7613 if (is_l3vni_oper_up(zl3vni))
7614 zebra_vxlan_process_l3vni_oper_up(
996c9314 7615 zl3vni);
12eeac84
MK		 7616 }
7617 }
7618
bca63dc8
MK		 7619 /* Update local tunnel IP. */
7620 zl3vni->local_vtep_ip = vxl->vtep_ip;
7621
12eeac84
MK		 7622 /* if we have a valid new master, process l3-vni oper up */
7623 if (chgflags & ZEBRA_VXLIF_MASTER_CHANGE) {
7624 if (if_is_operative(ifp) && is_l3vni_oper_up(zl3vni))
b7cfce93
MK		 7625 zebra_vxlan_process_l3vni_oper_up(zl3vni);
7626 }
7627 } else {
d62a17ae 7628
b7cfce93
MK		 7629 /* Update VNI hash. */
7630 zvni = zvni_lookup(vni);
7631 if (!zvni) {
9df414fe 7632 zlog_debug(
b7cfce93
MK		 7633 "Failed to find L2-VNI hash on update, IF %s(%u) VNI %u",
7634 ifp->name, ifp->ifindex, vni);
7635 return -1;
7636 }
d62a17ae 7637
b7cfce93
MK		 7638 if (IS_ZEBRA_DEBUG_VXLAN)
7639 zlog_debug(
7640 "Update L2-VNI %u intf %s(%u) VLAN %u local IP %s master %u chg 0x%x",
996c9314
LB		 7641 vni, ifp->name, ifp->ifindex, vxl->access_vlan,
7642 inet_ntoa(vxl->vtep_ip),
b7cfce93
MK		 7643 zif->brslave_info.bridge_ifindex, chgflags);
7644
7645 /* Removed from bridge? Cleanup and return */
7646 if ((chgflags & ZEBRA_VXLIF_MASTER_CHANGE)
7647 && (zif->brslave_info.bridge_ifindex == IFINDEX_INTERNAL)) {
7648 /* Delete from client, remove all remote VTEPs */
7649 /* Also, free up all MACs and neighbors. */
7650 zvni_send_del_to_client(zvni->vni);
7651 zvni_neigh_del_all(zvni, 1, 0, DEL_ALL_NEIGH);
7652 zvni_mac_del_all(zvni, 1, 0, DEL_ALL_MAC);
7653 zvni_vtep_del_all(zvni, 1);
7654 return 0;
7655 }
d62a17ae 7656
b7cfce93
MK		 7657 /* Handle other changes. */
7658 if (chgflags & ZEBRA_VXLIF_VLAN_CHANGE) {
7659 /* Remove all existing local neigh and MACs for this VNI
7660 * (including from BGP)
7661 */
7662 zvni_neigh_del_all(zvni, 0, 1, DEL_LOCAL_MAC);
7663 zvni_mac_del_all(zvni, 0, 1, DEL_LOCAL_MAC);
7664 }
d62a17ae 7665
b7cfce93
MK		 7666 zvni->local_vtep_ip = vxl->vtep_ip;
7667 zvni->vxlan_if = ifp;
d62a17ae 7668
b7cfce93
MK		 7669 /* Take further actions needed.
7670 * Note that if we are here, there is a change of interest.
7671 */
7672 /* If down or not mapped to a bridge, we're done. */
7673 if (!if_is_operative(ifp) || !zif->brslave_info.br_if)
7674 return 0;
d62a17ae 7675
b7cfce93
MK		 7676 /* Inform BGP, if there is a change of interest. */
7677 if (chgflags
7678 & (ZEBRA_VXLIF_MASTER_CHANGE | ZEBRA_VXLIF_LOCAL_IP_CHANGE))
7679 zvni_send_add_to_client(zvni);
7680
7681 /* If there is a valid new master or a VLAN mapping change,
7682 * read and populate local MACs and neighbors.
7683 * Also, reinstall any remote MACs and neighbors
7684 * for this VNI (based on new VLAN).
7685 */
7686 if (chgflags & ZEBRA_VXLIF_MASTER_CHANGE)
7687 zvni_read_mac_neigh(zvni, ifp);
7688 else if (chgflags & ZEBRA_VXLIF_VLAN_CHANGE) {
7689 struct mac_walk_ctx m_wctx;
7690 struct neigh_walk_ctx n_wctx;
7691
7692 zvni_read_mac_neigh(zvni, ifp);
7693
7694 memset(&m_wctx, 0, sizeof(struct mac_walk_ctx));
7695 m_wctx.zvni = zvni;
996c9314 7696 hash_iterate(zvni->mac_table, zvni_install_mac_hash,
b7cfce93
MK		 7697 &m_wctx);
7698
7699 memset(&n_wctx, 0, sizeof(struct neigh_walk_ctx));
7700 n_wctx.zvni = zvni;
7701 hash_iterate(zvni->neigh_table, zvni_install_neigh_hash,
7702 &n_wctx);
7703 }
d62a17ae 7704 }
7705
7706 return 0;
13d60d35 7707}
7708
7709/*
7710 * Handle VxLAN interface add.
7711 */
d62a17ae 7712int zebra_vxlan_if_add(struct interface *ifp)
13d60d35 7713{
d62a17ae 7714 vni_t vni;
b7cfce93
MK		 7715 struct zebra_if *zif = NULL;
7716 struct zebra_l2info_vxlan *vxl = NULL;
643215ce 7717 zebra_vni_t *zvni = NULL;
7718 zebra_l3vni_t *zl3vni = NULL;
13d60d35 7719
2853fed6 7720 /* Check if EVPN is enabled. */
7721 if (!is_evpn_enabled())
d62a17ae 7722 return 0;
13d60d35 7723
d62a17ae 7724 zif = ifp->info;
7725 assert(zif);
7726 vxl = &zif->l2info.vxl;
7727 vni = vxl->vni;
13d60d35 7728
643215ce 7729 zl3vni = zl3vni_lookup(vni);
7730 if (zl3vni) {
13d60d35 7731
b7cfce93 7732 /* process if-add for l3-vni*/
b7cfce93
MK		 7733 if (IS_ZEBRA_DEBUG_VXLAN)
7734 zlog_debug(
7735 "Add L3-VNI %u intf %s(%u) VLAN %u local IP %s master %u",
996c9314
LB		 7736 vni, ifp->name, ifp->ifindex, vxl->access_vlan,
7737 inet_ntoa(vxl->vtep_ip),
b7cfce93
MK		 7738 zif->brslave_info.bridge_ifindex);
7739
b7cfce93 7740 /* associate with vxlan_if */
b67a60d2 7741 zl3vni->local_vtep_ip = vxl->vtep_ip;
b7cfce93
MK		 7742 zl3vni->vxlan_if = ifp;
7743
7744 /* Associate with SVI, if any. We can associate with svi-if only
7745 * after association with vxlan_if is complete */
7746 zl3vni->svi_if = zl3vni_map_to_svi_if(zl3vni);
7747
7748 if (is_l3vni_oper_up(zl3vni))
7749 zebra_vxlan_process_l3vni_oper_up(zl3vni);
7750 } else {
7751
7752 /* process if-add for l2-vni */
b7cfce93
MK		 7753 struct interface *vlan_if = NULL;
7754
7755 /* Create or update VNI hash. */
7756 zvni = zvni_lookup(vni);
7757 if (!zvni) {
7758 zvni = zvni_add(vni);
7759 if (!zvni) {
af4c2728 7760 flog_err(
e914ccbe 7761 EC_ZEBRA_VNI_ADD_FAILED,
b7cfce93
MK		 7762 "Failed to add VNI hash, IF %s(%u) VNI %u",
7763 ifp->name, ifp->ifindex, vni);
7764 return -1;
7765 }
7766 }
7767
7768 zvni->local_vtep_ip = vxl->vtep_ip;
7769 zvni->vxlan_if = ifp;
7770 vlan_if = zvni_map_to_svi(vxl->access_vlan,
7771 zif->brslave_info.br_if);
7772 if (vlan_if) {
7773 zvni->vrf_id = vlan_if->vrf_id;
7774 zl3vni = zl3vni_from_vrf(vlan_if->vrf_id);
7775 if (zl3vni)
7776 listnode_add_sort(zl3vni->l2vnis, zvni);
7777 }
7778
7779 if (IS_ZEBRA_DEBUG_VXLAN)
7780 zlog_debug(
7781 "Add L2-VNI %u VRF %s intf %s(%u) VLAN %u local IP %s master %u",
7782 vni,
996c9314
LB		 7783 vlan_if ? vrf_id_to_name(vlan_if->vrf_id)
7784 : "Default",
7785 ifp->name, ifp->ifindex, vxl->access_vlan,
7786 inet_ntoa(vxl->vtep_ip),
b7cfce93
MK		 7787 zif->brslave_info.bridge_ifindex);
7788
7789 /* If down or not mapped to a bridge, we're done. */
7790 if (!if_is_operative(ifp) || !zif->brslave_info.br_if)
7791 return 0;
7792
7793 /* Inform BGP */
7794 zvni_send_add_to_client(zvni);
7795
7796 /* Read and populate local MACs and neighbors */
7797 zvni_read_mac_neigh(zvni, ifp);
7798 }
7799
7800 return 0;
7801}
7802
996c9314
LB		 7803int zebra_vxlan_process_vrf_vni_cmd(struct zebra_vrf *zvrf, vni_t vni,
7804 char *err, int err_str_sz, int filter,
7805 int add)
b7cfce93
MK		 7806{
7807 zebra_l3vni_t *zl3vni = NULL;
7808 struct zebra_vrf *zvrf_default = NULL;
7809
7810 zvrf_default = zebra_vrf_lookup_by_id(VRF_DEFAULT);
7811 if (!zvrf_default)
7812 return -1;
7813
7814 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314 7815 zlog_debug("vrf %s vni %u %s", zvrf_name(zvrf), vni,
b7cfce93
MK		 7816 add ? "ADD" : "DEL");
7817
7818 if (add) {
7819
7820 zebra_vxlan_handle_vni_transition(zvrf, vni, add);
7821
7822 /* check if the vni is already present under zvrf */
7823 if (zvrf->l3vni) {
3f02fbab 7824 snprintf(err, err_str_sz,
b7cfce93
MK		 7825 "VNI is already configured under the vrf");
7826 return -1;
7827 }
7828
7829 /* check if this VNI is already present in the system */
7830 zl3vni = zl3vni_lookup(vni);
7831 if (zl3vni) {
3f02fbab 7832 snprintf(err, err_str_sz,
b7cfce93
MK		 7833 "VNI is already configured as L3-VNI");
7834 return -1;
7835 }
7836
7837 /* add the L3-VNI to the global table */
7838 zl3vni = zl3vni_add(vni, zvrf_id(zvrf));
7839 if (!zl3vni) {
996c9314 7840 snprintf(err, err_str_sz, "Could not add L3-VNI");
b7cfce93
MK		 7841 return -1;
7842 }
7843
7844 /* associate the vrf with vni */
7845 zvrf->l3vni = vni;
7846
c48d9f5f
MK		 7847 /* set the filter in l3vni to denote if we are using l3vni only
7848 * for prefix routes
7849 */
7850 if (filter)
7851 SET_FLAG(zl3vni->filter, PREFIX_ROUTES_ONLY);
7852
b7cfce93 7853 /* associate with vxlan-intf;
523cafc4 7854 * we need to associate with the vxlan-intf first
7855 */
b7cfce93
MK		 7856 zl3vni->vxlan_if = zl3vni_map_to_vxlan_if(zl3vni);
7857
7858 /* associate with corresponding SVI interface, we can associate
7859 * with svi-if only after vxlan interface association is
523cafc4 7860 * complete
7861 */
b7cfce93
MK		 7862 zl3vni->svi_if = zl3vni_map_to_svi_if(zl3vni);
7863
7864 /* formulate l2vni list */
996c9314
LB		 7865 hash_iterate(zvrf_default->vni_table, zvni_add_to_l3vni_list,
7866 zl3vni);
b7cfce93
MK		 7867
7868 if (is_l3vni_oper_up(zl3vni))
7869 zebra_vxlan_process_l3vni_oper_up(zl3vni);
7870
7871 } else {
7872 zl3vni = zl3vni_lookup(vni);
7873 if (!zl3vni) {
3f02fbab 7874 snprintf(err, err_str_sz, "VNI doesn't exist");
d62a17ae 7875 return -1;
7876 }
b7cfce93 7877
cf299714
MK		 7878 if (filter && !CHECK_FLAG(zl3vni->filter, PREFIX_ROUTES_ONLY)) {
7879 snprintf(err, ERR_STR_SZ,
7880 "prefix-routes-only is not set for the vni");
7881 return -1;
7882 }
7883
b7cfce93
MK		 7884 zebra_vxlan_process_l3vni_oper_down(zl3vni);
7885
5e06422c 7886 /* delete and uninstall all rmacs */
996c9314 7887 hash_iterate(zl3vni->rmac_table, zl3vni_del_rmac_hash_entry,
5e06422c
MK		 7888 zl3vni);
7889
7890 /* delete and uninstall all next-hops */
996c9314 7891 hash_iterate(zl3vni->nh_table, zl3vni_del_nh_hash_entry,
5e06422c
MK		 7892 zl3vni);
7893
b7cfce93
MK		 7894 zvrf->l3vni = 0;
7895 zl3vni_del(zl3vni);
7896
7897 zebra_vxlan_handle_vni_transition(zvrf, vni, add);
d62a17ae 7898 }
b7cfce93
MK		 7899 return 0;
7900}
13d60d35 7901
84915b0a 7902int zebra_vxlan_vrf_enable(struct zebra_vrf *zvrf)
7903{
7904 zebra_l3vni_t *zl3vni = NULL;
7905
7906 if (zvrf->l3vni)
7907 zl3vni = zl3vni_lookup(zvrf->l3vni);
7908 if (!zl3vni)
7909 return 0;
7910
7911 zl3vni->vrf_id = zvrf_id(zvrf);
7912 if (is_l3vni_oper_up(zl3vni))
7913 zebra_vxlan_process_l3vni_oper_up(zl3vni);
7914 return 0;
7915}
7916
7917int zebra_vxlan_vrf_disable(struct zebra_vrf *zvrf)
b7cfce93
MK		 7918{
7919 zebra_l3vni_t *zl3vni = NULL;
13d60d35 7920
84915b0a 7921 if (zvrf->l3vni)
7922 zl3vni = zl3vni_lookup(zvrf->l3vni);
b7cfce93 7923 if (!zl3vni)
d62a17ae 7924 return 0;
13d60d35 7925
84915b0a 7926 zl3vni->vrf_id = VRF_UNKNOWN;
b7cfce93 7927 zebra_vxlan_process_l3vni_oper_down(zl3vni);
84915b0a 7928 return 0;
7929}
7930
7931int zebra_vxlan_vrf_delete(struct zebra_vrf *zvrf)
7932{
7933 zebra_l3vni_t *zl3vni = NULL;
7934 vni_t vni;
7935
7936 if (zvrf->l3vni)
7937 zl3vni = zl3vni_lookup(zvrf->l3vni);
7938 if (!zl3vni)
7939 return 0;
7940
7941 vni = zl3vni->vni;
b7cfce93 7942 zl3vni_del(zl3vni);
84915b0a 7943 zebra_vxlan_handle_vni_transition(zvrf, vni, 0);
2232a77c 7944
d62a17ae 7945 return 0;
13d60d35 7946}
7947
fbac9605
DS		 7948/*
7949 * Handle message from client to specify the flooding mechanism for
7950 * BUM packets. The default is to do head-end (ingress) replication
7951 * and the other supported option is to disable it. This applies to
7952 * all BUM traffic and disabling it applies to both the transmit and
7953 * receive direction.
7954 */
7955void zebra_vxlan_flood_control(ZAPI_HANDLER_ARGS)
7956{
7957 struct stream *s;
7958 enum vxlan_flood_control flood_ctrl;
7959
7960 if (zvrf_id(zvrf) != VRF_DEFAULT) {
7961 zlog_err("EVPN flood control for non-default VRF %u",
7962 zvrf_id(zvrf));
7963 return;
7964 }
7965
7966 s = msg;
7967 STREAM_GETC(s, flood_ctrl);
7968
7969 if (IS_ZEBRA_DEBUG_VXLAN)
7970 zlog_debug("EVPN flood control %u, currently %u",
7971 flood_ctrl, zvrf->vxlan_flood_ctrl);
7972
7973 if (zvrf->vxlan_flood_ctrl == flood_ctrl)
7974 return;
7975
7976 zvrf->vxlan_flood_ctrl = flood_ctrl;
7977
7978 /* Install or uninstall flood entries corresponding to
7979 * remote VTEPs.
7980 */
7981 hash_iterate(zvrf->vni_table, zvni_handle_flooding_remote_vteps,
7982 zvrf);
7983
7984stream_failure:
7985 return;
7986}
7987
31310b25
MK		 7988/*
7989 * Handle message from client to enable/disable advertisement of g/w macip
7990 * routes
7991 */
89f4e507 7992void zebra_vxlan_advertise_subnet(ZAPI_HANDLER_ARGS)
31310b25
MK		 7993{
7994 struct stream *s;
7995 int advertise;
7996 vni_t vni = 0;
7997 zebra_vni_t *zvni = NULL;
7998 struct interface *ifp = NULL;
7999 struct zebra_if *zif = NULL;
8000 struct zebra_l2info_vxlan zl2_info;
8001 struct interface *vlan_if = NULL;
8002
8003 if (zvrf_id(zvrf) != VRF_DEFAULT) {
9df414fe
QY		 8004 zlog_debug("EVPN GW-MACIP Adv for non-default VRF %u",
8005 zvrf_id(zvrf));
8068a649 8006 return;
31310b25
MK		 8007 }
8008
1002497a 8009 s = msg;
2017b3ea 8010 STREAM_GETC(s, advertise);
31310b25
MK		 8011 vni = stream_get3(s);
8012
8013 zvni = zvni_lookup(vni);
8014 if (!zvni)
8068a649 8015 return;
31310b25
MK		 8016
8017 if (zvni->advertise_subnet == advertise)
8068a649 8018 return;
31310b25
MK		 8019
8020 if (IS_ZEBRA_DEBUG_VXLAN)
996c9314
LB		 8021 zlog_debug("EVPN subnet Adv %s on VNI %d , currently %s",
8022 advertise ? "enabled" : "disabled", vni,
8023 zvni->advertise_subnet ? "enabled" : "disabled");
31310b25
MK		 8024
8025
8026 zvni->advertise_subnet = advertise;
8027
8028 ifp = zvni->vxlan_if;
8029 if (!ifp)
8068a649 8030 return;
31310b25
MK		 8031
8032 zif = ifp->info;
8033
8034 /* If down or not mapped to a bridge, we're done. */
8035 if (!if_is_operative(ifp) || !zif->brslave_info.br_if)
8068a649 8036 return;
31310b25
MK		 8037
8038 zl2_info = zif->l2info.vxl;
8039
996c9314
LB		 8040 vlan_if =
8041 zvni_map_to_svi(zl2_info.access_vlan, zif->brslave_info.br_if);
31310b25 8042 if (!vlan_if)
8068a649 8043 return;
31310b25
MK		 8044
8045 if (zvni->advertise_subnet)
8046 zvni_advertise_subnet(zvni, vlan_if, 1);
8047 else
8048 zvni_advertise_subnet(zvni, vlan_if, 0);
2017b3ea
DS		 8049
8050stream_failure:
8051 return;
31310b25
MK		 8052}
8053
1a98c087
MK		 8054/*
8055 * Handle message from client to enable/disable advertisement of g/w macip
8056 * routes
8057 */
89f4e507 8058void zebra_vxlan_advertise_gw_macip(ZAPI_HANDLER_ARGS)
1a98c087
MK		 8059{
8060 struct stream *s;
8061 int advertise;
8062 vni_t vni = 0;
8063 zebra_vni_t *zvni = NULL;
b5ebdc9b 8064 struct interface *ifp = NULL;
1a98c087 8065
2853fed6 8066 if (zvrf_id(zvrf) != VRF_DEFAULT) {
9df414fe
QY		 8067 zlog_debug("EVPN GW-MACIP Adv for non-default VRF %u",
8068 zvrf_id(zvrf));
8068a649 8069 return;
2853fed6 8070 }
8071
1002497a 8072 s = msg;
ec93aa12 8073 STREAM_GETC(s, advertise);
cc6d5476 8074 STREAM_GETL(s, vni);
1a98c087
MK		 8075
8076 if (!vni) {
8077 if (IS_ZEBRA_DEBUG_VXLAN)
2853fed6 8078 zlog_debug("EVPN gateway macip Adv %s, currently %s",
1a98c087 8079 advertise ? "enabled" : "disabled",
2853fed6 8080 advertise_gw_macip_enabled(NULL)
1a98c087
MK		 8081 ? "enabled"
8082 : "disabled");
8083
8084 if (zvrf->advertise_gw_macip == advertise)
8068a649 8085 return;
1a98c087
MK		 8086
8087 zvrf->advertise_gw_macip = advertise;
8088
2853fed6 8089 if (advertise_gw_macip_enabled(zvni))
1a98c087 8090 hash_iterate(zvrf->vni_table,
2853fed6 8091 zvni_gw_macip_add_for_vni_hash, NULL);
1a98c087
MK		 8092 else
8093 hash_iterate(zvrf->vni_table,
2853fed6 8094 zvni_gw_macip_del_for_vni_hash, NULL);
1a98c087
MK		 8095
8096 } else {
8097 struct zebra_if *zif = NULL;
8098 struct zebra_l2info_vxlan zl2_info;
8099 struct interface *vlan_if = NULL;
8100 struct interface *vrr_if = NULL;
8101
01a6143b
MK		 8102 zvni = zvni_lookup(vni);
8103 if (!zvni)
124ead27 8104 return;
01a6143b 8105
1a98c087
MK		 8106 if (IS_ZEBRA_DEBUG_VXLAN)
8107 zlog_debug(
2853fed6 8108 "EVPN gateway macip Adv %s on VNI %d , currently %s",
1a98c087 8109 advertise ? "enabled" : "disabled", vni,
996c9314
LB		 8110 advertise_gw_macip_enabled(zvni) ? "enabled"
8111 : "disabled");
1a98c087 8112
1a98c087 8113 if (zvni->advertise_gw_macip == advertise)
8068a649 8114 return;
1a98c087
MK		 8115
8116 zvni->advertise_gw_macip = advertise;
8117
b5ebdc9b 8118 ifp = zvni->vxlan_if;
8119 if (!ifp)
8068a649 8120 return;
b5ebdc9b 8121
8122 zif = ifp->info;
8123
8124 /* If down or not mapped to a bridge, we're done. */
b682f6de 8125 if (!if_is_operative(ifp) || !zif->brslave_info.br_if)
8068a649 8126 return;
b5ebdc9b 8127
1a98c087
MK		 8128 zl2_info = zif->l2info.vxl;
8129
2853fed6 8130 vlan_if = zvni_map_to_svi(zl2_info.access_vlan,
1a98c087
MK		 8131 zif->brslave_info.br_if);
8132 if (!vlan_if)
8068a649 8133 return;
1a98c087 8134
2853fed6 8135 if (advertise_gw_macip_enabled(zvni)) {
1a98c087
MK		 8136 /* Add primary SVI MAC-IP */
8137 zvni_add_macip_for_intf(vlan_if, zvni);
8138
8139 /* Add VRR MAC-IP - if any*/
8140 vrr_if = zebra_get_vrr_intf_for_svi(vlan_if);
8141 if (vrr_if)
8142 zvni_add_macip_for_intf(vrr_if, zvni);
8143 } else {
8144 /* Del primary MAC-IP */
8145 zvni_del_macip_for_intf(vlan_if, zvni);
8146
8147 /* Del VRR MAC-IP - if any*/
8148 vrr_if = zebra_get_vrr_intf_for_svi(vlan_if);
8149 if (vrr_if)
8150 zvni_del_macip_for_intf(vrr_if, zvni);
8151 }
8152 }
8153
ec93aa12 8154stream_failure:
8068a649 8155 return;
1a98c087
MK		 8156}
8157
8158
13d60d35 8159/*
8160 * Handle message from client to learn (or stop learning) about VNIs and MACs.
8161 * When enabled, the VNI hash table will be built and MAC FDB table read;
8162 * when disabled, the entries should be deleted and remote VTEPs and MACs
8163 * uninstalled from the kernel.
fbac9605
DS		 8164 * This also informs the setting for BUM handling at the time this change
8165 * occurs; it is relevant only when specifying "learn".
13d60d35 8166 */
89f4e507 8167void zebra_vxlan_advertise_all_vni(ZAPI_HANDLER_ARGS)
13d60d35 8168{
655b04d1
MK		 8169 struct stream *s = NULL;
8170 int advertise = 0;
fbac9605 8171 enum vxlan_flood_control flood_ctrl;
13d60d35 8172
2853fed6 8173 if (zvrf_id(zvrf) != VRF_DEFAULT) {
9df414fe
QY		 8174 zlog_debug("EVPN VNI Adv for non-default VRF %u",
8175 zvrf_id(zvrf));
8068a649 8176 return;
2853fed6 8177 }
8178
1002497a 8179 s = msg;
ec93aa12 8180 STREAM_GETC(s, advertise);
fbac9605 8181 STREAM_GETC(s, flood_ctrl);
13d60d35 8182
d62a17ae 8183 if (IS_ZEBRA_DEBUG_VXLAN)
fbac9605 8184 zlog_debug("EVPN VNI Adv %s, currently %s, flood control %u",
d62a17ae 8185 advertise ? "enabled" : "disabled",
fbac9605
DS		 8186 is_evpn_enabled() ? "enabled" : "disabled",
8187 flood_ctrl);
13d60d35 8188
d62a17ae 8189 if (zvrf->advertise_all_vni == advertise)
8068a649 8190 return;
13d60d35 8191
d62a17ae 8192 zvrf->advertise_all_vni = advertise;
2853fed6 8193 if (is_evpn_enabled()) {
fbac9605
DS		 8194 /* Note BUM handling */
8195 zvrf->vxlan_flood_ctrl = flood_ctrl;
8196
d62a17ae 8197 /* Build VNI hash table and inform BGP. */
2853fed6 8198 zvni_build_hash_table();
2232a77c 8199
1a98c087
MK		 8200 /* Add all SVI (L3 GW) MACs to BGP*/
8201 hash_iterate(zvrf->vni_table, zvni_gw_macip_add_for_vni_hash,
2853fed6 8202 NULL);
1a98c087 8203
d62a17ae 8204 /* Read the MAC FDB */
8205 macfdb_read(zvrf->zns);
2232a77c 8206
d62a17ae 8207 /* Read neighbors */
8208 neigh_read(zvrf->zns);
8209 } else {
8210 /* Cleanup VTEPs for all VNIs - uninstall from
8211 * kernel and free entries.
8212 */
8213 hash_iterate(zvrf->vni_table, zvni_cleanup_all, zvrf);
655b04d1
MK		 8214
8215 /* cleanup all l3vnis */
89272910 8216 hash_iterate(zrouter.l3vni_table, zl3vni_cleanup_all, NULL);
d62a17ae 8217 }
13d60d35 8218
ec93aa12 8219stream_failure:
8068a649 8220 return;
13d60d35 8221}
8222
8223/*
8224 * Allocate VNI hash table for this VRF and do other initialization.
8225 * NOTE: Currently supported only for default VRF.
8226 */
d62a17ae 8227void zebra_vxlan_init_tables(struct zebra_vrf *zvrf)
13d60d35 8228{
d62a17ae 8229 if (!zvrf)
8230 return;
8231 zvrf->vni_table = hash_create(vni_hash_keymake, vni_hash_cmp,
8232 "Zebra VRF VNI Table");
13d60d35 8233}
8234
84915b0a 8235/* Cleanup VNI info, but don't free the table. */
8236void zebra_vxlan_cleanup_tables(struct zebra_vrf *zvrf)
8237{
8238 if (!zvrf)
8239 return;
8240 hash_iterate(zvrf->vni_table, zvni_cleanup_all, zvrf);
8241}
8242
13d60d35 8243/* Close all VNI handling */
d62a17ae 8244void zebra_vxlan_close_tables(struct zebra_vrf *zvrf)
13d60d35 8245{
2853fed6 8246 if (!zvrf)
8247 return;
d62a17ae 8248 hash_iterate(zvrf->vni_table, zvni_cleanup_all, zvrf);
9b67b514 8249 hash_free(zvrf->vni_table);
13d60d35 8250}
b7cfce93
MK		 8251
8252/* init the l3vni table */
8253void zebra_vxlan_ns_init(struct zebra_ns *zns)
8254{
89272910
DS		 8255 zrouter.l3vni_table = hash_create(l3vni_hash_keymake, l3vni_hash_cmp,
8256 "Zebra VRF L3 VNI table");
b7cfce93
MK		 8257}
8258
8259/* free l3vni table */
8260void zebra_vxlan_ns_disable(struct zebra_ns *zns)
8261{
89272910 8262 hash_free(zrouter.l3vni_table);
b7cfce93 8263}
d3135ba3 8264
8265/* get the l3vni svi ifindex */
8266ifindex_t get_l3vni_svi_ifindex(vrf_id_t vrf_id)
8267{
8268 zebra_l3vni_t *zl3vni = NULL;
8269
8270 zl3vni = zl3vni_from_vrf(vrf_id);
8271 if (!zl3vni || !is_l3vni_oper_up(zl3vni))
8272 return 0;
8273
8274 return zl3vni->svi_if->ifindex;
8275}
c80a972c
CS		 8276
8277static int zebra_vxlan_dad_ip_auto_recovery_exp(struct thread *t)
8278{
8279 struct zebra_vrf *zvrf = NULL;
8280 zebra_neigh_t *nbr = NULL;
8281 zebra_vni_t *zvni = NULL;
8282 char buf1[INET6_ADDRSTRLEN];
8283 char buf2[ETHER_ADDR_STRLEN];
8284
8285 nbr = THREAD_ARG(t);
8286
8287 /* since this is asynchronous we need sanity checks*/
8288 zvrf = vrf_info_lookup(nbr->zvni->vrf_id);
8289 if (!zvrf)
8290 goto exit;
8291
8292 zvni = zvni_lookup(nbr->zvni->vni);
8293 if (!zvni)
8294 goto exit;
8295
8296 nbr = zvni_neigh_lookup(zvni, &nbr->ip);
8297 if (!nbr)
8298 goto exit;
8299
8300 if (IS_ZEBRA_DEBUG_VXLAN)
8301 zlog_debug("%s: duplicate addr MAC %s IP %s flags 0x%x learn count %u vni %u auto recovery expired",
8302 __PRETTY_FUNCTION__,
8303 prefix_mac2str(&nbr->emac, buf1, sizeof(buf1)),
8304 ipaddr2str(&nbr->ip, buf2, sizeof(buf2)),
8305 nbr->flags,
8306 nbr->dad_count, zvni->vni);
8307
8308 UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE);
8309 nbr->dad_count = 0;
8310 nbr->detect_start_time.tv_sec = 0;
8311 nbr->detect_start_time.tv_usec = 0;
8312 nbr->dad_dup_detect_time = 0;
8313 nbr->dad_ip_auto_recovery_timer = NULL;
8314
8315 /* Send to BGP */
8316 if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) {
8317 zvni_neigh_send_add_to_client(zvni->vni, &nbr->ip, &nbr->emac,
8318 nbr->flags, nbr->loc_seq);
8319 } else if (!!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE)) {
8320 zvni_neigh_install(zvni, nbr);
8321 }
8322
8323exit:
8324 return 0;
8325}
8326
8327static int zebra_vxlan_dad_mac_auto_recovery_exp(struct thread *t)
8328{
8329 struct zebra_vrf *zvrf = NULL;
8330 zebra_mac_t *mac = NULL;
8331 zebra_vni_t *zvni = NULL;
8332 struct listnode *node = NULL;
8333 zebra_neigh_t *nbr = NULL;
8334 char buf[ETHER_ADDR_STRLEN];
8335
8336 mac = THREAD_ARG(t);
8337
8338 /* since this is asynchronous we need sanity checks*/
8339 zvrf = vrf_info_lookup(mac->zvni->vrf_id);
8340 if (!zvrf)
8341 goto exit;
8342
8343 zvni = zvni_lookup(mac->zvni->vni);
8344 if (!zvni)
8345 goto exit;
8346
8347 mac = zvni_mac_lookup(zvni, &mac->macaddr);
8348 if (!mac)
8349 goto exit;
8350
8351 if (IS_ZEBRA_DEBUG_VXLAN)
8352 zlog_debug("%s: duplicate addr mac %s flags 0x%x learn count %u host count %u auto recovery expired",
8353 __PRETTY_FUNCTION__,
8354 prefix_mac2str(&mac->macaddr, buf, sizeof(buf)),
8355 mac->flags,
8356 mac->dad_count,
8357 listcount(mac->neigh_list));
8358
8359 /* Remove all IPs as duplicate associcated with this MAC */
8360 for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) {
8361 if (nbr->dad_count) {
8362 if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL))
8363 ZEBRA_NEIGH_SET_INACTIVE(nbr);
8364 else if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE))
8365 zvni_neigh_install(zvni, nbr);
8366 }
8367
8368 UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE);
8369 nbr->dad_count = 0;
8370 nbr->detect_start_time.tv_sec = 0;
8371 nbr->dad_dup_detect_time = 0;
8372 }
8373
8374 UNSET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE);
8375 mac->dad_count = 0;
8376 mac->detect_start_time.tv_sec = 0;
8377 mac->detect_start_time.tv_usec = 0;
8378 mac->dad_dup_detect_time = 0;
8379 mac->dad_mac_auto_recovery_timer = NULL;
8380
8381 if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) {
8382 /* Inform to BGP */
8383 if (zvni_mac_send_add_to_client(zvni->vni, &mac->macaddr,
8384 mac->flags, mac->loc_seq))
8385 return -1;
8386
8387 /* Process all neighbors associated with this MAC. */
8388 zvni_process_neigh_on_local_mac_change(zvni, mac, 0);
8389
8390 } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) {
8391 zvni_process_neigh_on_remote_mac_add(zvni, mac);
8392
8393 /* Install the entry. */
8394 zvni_mac_install(zvni, mac);
8395 }
8396
8397exit:
8398 return 0;
8399}
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