2 * Zebra EVPN for VxLAN code
3 * Copyright (C) 2016, 2017 Cumulus Networks, Inc.
5 * This file is part of FRR.
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
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.
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
37 #include <linux/neighbour.h>
40 #include "zebra/zebra_router.h"
41 #include "zebra/debug.h"
42 #include "zebra/interface.h"
43 #include "zebra/rib.h"
45 #include "zebra/rt_netlink.h"
46 #include "zebra/zebra_errors.h"
47 #include "zebra/zebra_l2.h"
48 #include "zebra/zebra_memory.h"
49 #include "zebra/zebra_ns.h"
50 #include "zebra/zebra_vrf.h"
51 #include "zebra/zebra_vxlan.h"
52 #include "zebra/zebra_vxlan_private.h"
53 #include "zebra/zebra_router.h"
55 DEFINE_MTYPE_STATIC(ZEBRA
, HOST_PREFIX
, "host prefix");
56 DEFINE_MTYPE_STATIC(ZEBRA
, ZVNI
, "VNI hash");
57 DEFINE_MTYPE_STATIC(ZEBRA
, ZL3VNI
, "L3 VNI hash");
58 DEFINE_MTYPE_STATIC(ZEBRA
, ZVNI_VTEP
, "VNI remote VTEP");
59 DEFINE_MTYPE_STATIC(ZEBRA
, MAC
, "VNI MAC");
60 DEFINE_MTYPE_STATIC(ZEBRA
, NEIGH
, "VNI Neighbor");
61 DEFINE_MTYPE_STATIC(ZEBRA
, ZVXLAN_SG
, "zebra VxLAN multicast group");
63 DEFINE_HOOK(zebra_rmac_update
, (zebra_mac_t
*rmac
, zebra_l3vni_t
*zl3vni
,
64 bool delete, const char *reason
), (rmac
, zl3vni
, delete, reason
))
68 #define VXLAN_FLOOD_STR_NO_INFO "-"
69 #define VXLAN_FLOOD_STR_DEFAULT VXLAN_FLOOD_STR_NO_INFO
70 static const struct message zvtep_flood_str
[] = {
71 {VXLAN_FLOOD_DISABLED
, VXLAN_FLOOD_STR_NO_INFO
},
72 {VXLAN_FLOOD_PIM_SM
, "PIM-SM"},
73 {VXLAN_FLOOD_HEAD_END_REPL
, "HER"},
78 /* static function declarations */
79 static int ip_prefix_send_to_client(vrf_id_t vrf_id
, struct prefix
*p
,
81 static void zvni_print_neigh(zebra_neigh_t
*n
, void *ctxt
, json_object
*json
);
82 static void zvni_print_neigh_hash(struct hash_bucket
*bucket
, void *ctxt
);
83 static void zvni_print_dad_neigh_hash(struct hash_bucket
*bucket
, void *ctxt
);
84 static void zvni_print_neigh_hash_all_vni(struct hash_bucket
*bucket
,
86 static void zl3vni_print_nh(zebra_neigh_t
*n
, struct vty
*vty
,
88 static void zl3vni_print_rmac(zebra_mac_t
*zrmac
, struct vty
*vty
,
90 static void zvni_print_mac(zebra_mac_t
*mac
, void *ctxt
, json_object
*json
);
91 static void zvni_print_mac_hash(struct hash_bucket
*bucket
, void *ctxt
);
92 static void zvni_print_mac_hash_all_vni(struct hash_bucket
*bucket
, void *ctxt
);
93 static void zvni_print(zebra_vni_t
*zvni
, void **ctxt
);
94 static void zvni_print_hash(struct hash_bucket
*bucket
, void *ctxt
[]);
96 static int zvni_macip_send_msg_to_client(vni_t vni
, struct ethaddr
*macaddr
,
97 struct ipaddr
*ip
, uint8_t flags
,
98 uint32_t seq
, int state
, uint16_t cmd
);
99 static unsigned int neigh_hash_keymake(const void *p
);
100 static void *zvni_neigh_alloc(void *p
);
101 static zebra_neigh_t
*zvni_neigh_add(zebra_vni_t
*zvni
, struct ipaddr
*ip
,
102 struct ethaddr
*mac
);
103 static int zvni_neigh_del(zebra_vni_t
*zvni
, zebra_neigh_t
*n
);
104 static void zvni_neigh_del_from_vtep(zebra_vni_t
*zvni
, int uninstall
,
105 struct in_addr
*r_vtep_ip
);
106 static void zvni_neigh_del_all(zebra_vni_t
*zvni
, int uninstall
, int upd_client
,
108 static zebra_neigh_t
*zvni_neigh_lookup(zebra_vni_t
*zvni
, struct ipaddr
*ip
);
109 static int zvni_neigh_send_add_to_client(vni_t vni
, struct ipaddr
*ip
,
110 struct ethaddr
*macaddr
,
111 uint8_t flags
, uint32_t seq
);
112 static int zvni_neigh_send_del_to_client(vni_t vni
, struct ipaddr
*ip
,
113 struct ethaddr
*macaddr
,
114 uint8_t flags
, int state
);
115 static int zvni_neigh_install(zebra_vni_t
*zvni
, zebra_neigh_t
*n
);
116 static int zvni_neigh_uninstall(zebra_vni_t
*zvni
, zebra_neigh_t
*n
);
117 static int zvni_neigh_probe(zebra_vni_t
*zvni
, zebra_neigh_t
*n
);
118 static zebra_vni_t
*zvni_from_svi(struct interface
*ifp
,
119 struct interface
*br_if
);
120 static struct interface
*zvni_map_to_svi(vlanid_t vid
, struct interface
*br_if
);
122 /* l3-vni next-hop neigh related APIs */
123 static zebra_neigh_t
*zl3vni_nh_lookup(zebra_l3vni_t
*zl3vni
,
125 static void *zl3vni_nh_alloc(void *p
);
126 static zebra_neigh_t
*zl3vni_nh_add(zebra_l3vni_t
*zl3vni
,
127 struct ipaddr
*vtep_ip
,
128 struct ethaddr
*rmac
);
129 static int zl3vni_nh_del(zebra_l3vni_t
*zl3vni
, zebra_neigh_t
*n
);
130 static int zl3vni_nh_install(zebra_l3vni_t
*zl3vni
, zebra_neigh_t
*n
);
131 static int zl3vni_nh_uninstall(zebra_l3vni_t
*zl3vni
, zebra_neigh_t
*n
);
133 /* l3-vni rmac related APIs */
134 static void zl3vni_print_rmac_hash(struct hash_bucket
*, void *);
135 static zebra_mac_t
*zl3vni_rmac_lookup(zebra_l3vni_t
*zl3vni
,
136 struct ethaddr
*rmac
);
137 static void *zl3vni_rmac_alloc(void *p
);
138 static zebra_mac_t
*zl3vni_rmac_add(zebra_l3vni_t
*zl3vni
,
139 struct ethaddr
*rmac
);
140 static int zl3vni_rmac_del(zebra_l3vni_t
*zl3vni
, zebra_mac_t
*zrmac
);
141 static int zl3vni_rmac_install(zebra_l3vni_t
*zl3vni
, zebra_mac_t
*zrmac
);
142 static int zl3vni_rmac_uninstall(zebra_l3vni_t
*zl3vni
, zebra_mac_t
*zrmac
);
144 /* l3-vni related APIs*/
145 static zebra_l3vni_t
*zl3vni_lookup(vni_t vni
);
146 static void *zl3vni_alloc(void *p
);
147 static zebra_l3vni_t
*zl3vni_add(vni_t vni
, vrf_id_t vrf_id
);
148 static int zl3vni_del(zebra_l3vni_t
*zl3vni
);
149 static void zebra_vxlan_process_l3vni_oper_up(zebra_l3vni_t
*zl3vni
);
150 static void zebra_vxlan_process_l3vni_oper_down(zebra_l3vni_t
*zl3vni
);
152 static unsigned int mac_hash_keymake(const void *p
);
153 static bool mac_cmp(const void *p1
, const void *p2
);
154 static void *zvni_mac_alloc(void *p
);
155 static zebra_mac_t
*zvni_mac_add(zebra_vni_t
*zvni
, struct ethaddr
*macaddr
);
156 static int zvni_mac_del(zebra_vni_t
*zvni
, zebra_mac_t
*mac
);
157 static void zvni_mac_del_from_vtep(zebra_vni_t
*zvni
, int uninstall
,
158 struct in_addr
*r_vtep_ip
);
159 static void zvni_mac_del_all(zebra_vni_t
*zvni
, int uninstall
, int upd_client
,
161 static zebra_mac_t
*zvni_mac_lookup(zebra_vni_t
*zvni
, struct ethaddr
*macaddr
);
162 static int zvni_mac_send_add_to_client(vni_t vni
, struct ethaddr
*macaddr
,
163 uint8_t flags
, uint32_t seq
);
164 static int zvni_mac_send_del_to_client(vni_t vni
, struct ethaddr
*macaddr
);
165 static zebra_vni_t
*zvni_map_vlan(struct interface
*ifp
,
166 struct interface
*br_if
, vlanid_t vid
);
167 static int zvni_mac_install(zebra_vni_t
*zvni
, zebra_mac_t
*mac
);
168 static int zvni_mac_uninstall(zebra_vni_t
*zvni
, zebra_mac_t
*mac
);
169 static void zvni_install_mac_hash(struct hash_bucket
*bucket
, void *ctxt
);
171 static unsigned int vni_hash_keymake(const void *p
);
172 static void *zvni_alloc(void *p
);
173 static zebra_vni_t
*zvni_lookup(vni_t vni
);
174 static zebra_vni_t
*zvni_add(vni_t vni
);
175 static int zvni_del(zebra_vni_t
*zvni
);
176 static int zvni_send_add_to_client(zebra_vni_t
*zvni
);
177 static int zvni_send_del_to_client(vni_t vni
);
178 static void zvni_build_hash_table(void);
179 static int zvni_vtep_match(struct in_addr
*vtep_ip
, zebra_vtep_t
*zvtep
);
180 static zebra_vtep_t
*zvni_vtep_find(zebra_vni_t
*zvni
, struct in_addr
*vtep_ip
);
181 static zebra_vtep_t
*zvni_vtep_add(zebra_vni_t
*zvni
, struct in_addr
*vtep_ip
,
183 static int zvni_vtep_del(zebra_vni_t
*zvni
, zebra_vtep_t
*zvtep
);
184 static int zvni_vtep_del_all(zebra_vni_t
*zvni
, int uninstall
);
185 static int zvni_vtep_install(zebra_vni_t
*zvni
, zebra_vtep_t
*zvtep
);
186 static int zvni_vtep_uninstall(zebra_vni_t
*zvni
, struct in_addr
*vtep_ip
);
187 static int zvni_del_macip_for_intf(struct interface
*ifp
, zebra_vni_t
*zvni
);
188 static int zvni_add_macip_for_intf(struct interface
*ifp
, zebra_vni_t
*zvni
);
189 static int zvni_gw_macip_add(struct interface
*ifp
, zebra_vni_t
*zvni
,
190 struct ethaddr
*macaddr
, struct ipaddr
*ip
);
191 static int zvni_gw_macip_del(struct interface
*ifp
, zebra_vni_t
*zvni
,
193 struct interface
*zebra_get_vrr_intf_for_svi(struct interface
*ifp
);
194 static int advertise_gw_macip_enabled(zebra_vni_t
*zvni
);
195 static int advertise_svi_macip_enabled(zebra_vni_t
*zvni
);
196 static int zebra_vxlan_ip_inherit_dad_from_mac(struct zebra_vrf
*zvrf
,
197 zebra_mac_t
*old_zmac
,
198 zebra_mac_t
*new_zmac
,
200 static int remote_neigh_count(zebra_mac_t
*zmac
);
201 static void zvni_deref_ip2mac(zebra_vni_t
*zvni
, zebra_mac_t
*mac
);
202 static int zebra_vxlan_dad_mac_auto_recovery_exp(struct thread
*t
);
203 static int zebra_vxlan_dad_ip_auto_recovery_exp(struct thread
*t
);
204 static void zebra_vxlan_dup_addr_detect_for_neigh(struct zebra_vrf
*zvrf
,
206 struct in_addr vtep_ip
,
210 static void zebra_vxlan_dup_addr_detect_for_mac(struct zebra_vrf
*zvrf
,
212 struct in_addr vtep_ip
,
216 static unsigned int zebra_vxlan_sg_hash_key_make(const void *p
);
217 static bool zebra_vxlan_sg_hash_eq(const void *p1
, const void *p2
);
218 static void zebra_vxlan_sg_do_deref(struct zebra_vrf
*zvrf
,
219 struct in_addr sip
, struct in_addr mcast_grp
);
220 static zebra_vxlan_sg_t
*zebra_vxlan_sg_do_ref(struct zebra_vrf
*vrf
,
221 struct in_addr sip
, struct in_addr mcast_grp
);
222 static void zebra_vxlan_sg_deref(struct in_addr local_vtep_ip
,
223 struct in_addr mcast_grp
);
224 static void zebra_vxlan_sg_ref(struct in_addr local_vtep_ip
,
225 struct in_addr mcast_grp
);
226 static void zebra_vxlan_sg_cleanup(struct hash_backet
*backet
, void *arg
);
228 static void zvni_send_mac_to_client(zebra_vni_t
*zvn
);
229 static void zvni_send_neigh_to_client(zebra_vni_t
*zvni
);
231 /* Private functions */
232 static int host_rb_entry_compare(const struct host_rb_entry
*hle1
,
233 const struct host_rb_entry
*hle2
)
235 if (hle1
->p
.family
< hle2
->p
.family
)
238 if (hle1
->p
.family
> hle2
->p
.family
)
241 if (hle1
->p
.prefixlen
< hle2
->p
.prefixlen
)
244 if (hle1
->p
.prefixlen
> hle2
->p
.prefixlen
)
247 if (hle1
->p
.family
== AF_INET
) {
248 if (hle1
->p
.u
.prefix4
.s_addr
< hle2
->p
.u
.prefix4
.s_addr
)
251 if (hle1
->p
.u
.prefix4
.s_addr
> hle2
->p
.u
.prefix4
.s_addr
)
255 } else if (hle1
->p
.family
== AF_INET6
) {
256 return memcmp(&hle1
->p
.u
.prefix6
, &hle2
->p
.u
.prefix6
,
259 zlog_debug("%s: Unexpected family type: %d",
260 __PRETTY_FUNCTION__
, hle1
->p
.family
);
264 RB_GENERATE(host_rb_tree_entry
, host_rb_entry
, hl_entry
, host_rb_entry_compare
);
266 static uint32_t rb_host_count(struct host_rb_tree_entry
*hrbe
)
268 struct host_rb_entry
*hle
;
271 RB_FOREACH (hle
, host_rb_tree_entry
, hrbe
)
278 * Return number of valid MACs in a VNI's MAC hash table - all
279 * remote MACs and non-internal (auto) local MACs count.
281 static uint32_t num_valid_macs(zebra_vni_t
*zvni
)
284 uint32_t num_macs
= 0;
286 struct hash_bucket
*hb
;
289 hash
= zvni
->mac_table
;
292 for (i
= 0; i
< hash
->size
; i
++) {
293 for (hb
= hash
->index
[i
]; hb
; hb
= hb
->next
) {
294 mac
= (zebra_mac_t
*)hb
->data
;
295 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
)
296 || CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
)
297 || !CHECK_FLAG(mac
->flags
, ZEBRA_MAC_AUTO
))
305 static uint32_t num_dup_detected_macs(zebra_vni_t
*zvni
)
308 uint32_t num_macs
= 0;
310 struct hash_bucket
*hb
;
313 hash
= zvni
->mac_table
;
316 for (i
= 0; i
< hash
->size
; i
++) {
317 for (hb
= hash
->index
[i
]; hb
; hb
= hb
->next
) {
318 mac
= (zebra_mac_t
*)hb
->data
;
319 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
))
327 static uint32_t num_dup_detected_neighs(zebra_vni_t
*zvni
)
330 uint32_t num_neighs
= 0;
332 struct hash_bucket
*hb
;
335 hash
= zvni
->neigh_table
;
338 for (i
= 0; i
< hash
->size
; i
++) {
339 for (hb
= hash
->index
[i
]; hb
; hb
= hb
->next
) {
340 nbr
= (zebra_neigh_t
*)hb
->data
;
341 if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
))
349 static int advertise_gw_macip_enabled(zebra_vni_t
*zvni
)
351 struct zebra_vrf
*zvrf
;
353 zvrf
= zebra_vrf_get_evpn();
354 if (zvrf
&& zvrf
->advertise_gw_macip
)
357 if (zvni
&& zvni
->advertise_gw_macip
)
363 static int advertise_svi_macip_enabled(zebra_vni_t
*zvni
)
365 struct zebra_vrf
*zvrf
;
367 zvrf
= zebra_vrf_get_evpn();
368 if (zvrf
&& zvrf
->advertise_svi_macip
)
371 if (zvni
&& zvni
->advertise_svi_macip
)
377 /* As part Duplicate Address Detection (DAD) for IP mobility
378 * MAC binding changes, ensure to inherit duplicate flag
381 static int zebra_vxlan_ip_inherit_dad_from_mac(struct zebra_vrf
*zvrf
,
382 zebra_mac_t
*old_zmac
,
383 zebra_mac_t
*new_zmac
,
386 bool is_old_mac_dup
= false;
387 bool is_new_mac_dup
= false;
389 if (!zvrf
->dup_addr_detect
)
391 /* Check old or new MAC is detected as duplicate
392 * mark this neigh as duplicate
395 is_old_mac_dup
= CHECK_FLAG(old_zmac
->flags
,
396 ZEBRA_MAC_DUPLICATE
);
398 is_new_mac_dup
= CHECK_FLAG(new_zmac
->flags
,
399 ZEBRA_MAC_DUPLICATE
);
400 /* Old and/or new MAC can be in duplicate state,
401 * based on that IP/Neigh Inherits the flag.
402 * If New MAC is marked duplicate, inherit to the IP.
403 * If old MAC is duplicate but new MAC is not, clear
404 * duplicate flag for IP and reset detection params
405 * and let IP DAD retrigger.
407 if (is_new_mac_dup
&& !CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
)) {
408 SET_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
);
409 /* Capture Duplicate detection time */
410 nbr
->dad_dup_detect_time
= monotime(NULL
);
411 /* Mark neigh inactive */
412 ZEBRA_NEIGH_SET_INACTIVE(nbr
);
415 } else if (is_old_mac_dup
&& !is_new_mac_dup
) {
416 UNSET_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
);
418 nbr
->detect_start_time
.tv_sec
= 0;
419 nbr
->detect_start_time
.tv_usec
= 0;
424 static void zebra_vxlan_dup_addr_detect_for_mac(struct zebra_vrf
*zvrf
,
426 struct in_addr vtep_ip
,
432 struct listnode
*node
= NULL
;
433 struct timeval elapsed
= {0, 0};
434 char buf
[ETHER_ADDR_STRLEN
];
435 char buf1
[INET6_ADDRSTRLEN
];
436 bool reset_params
= false;
438 if (!(zvrf
->dup_addr_detect
&& do_dad
))
441 /* MAC is detected as duplicate,
442 * Local MAC event -> hold on advertising to BGP.
443 * Remote MAC event -> hold on installing it.
445 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
)) {
446 if (IS_ZEBRA_DEBUG_VXLAN
)
448 "%s: duplicate addr MAC %s flags 0x%x skip update to client, learn count %u recover time %u",
450 prefix_mac2str(&mac
->macaddr
, buf
,
452 mac
->flags
, mac
->dad_count
,
453 zvrf
->dad_freeze_time
);
455 /* For duplicate MAC do not update
456 * client but update neigh due to
459 if (zvrf
->dad_freeze
)
460 *is_dup_detect
= true;
465 /* Check if detection time (M-secs) expired.
466 * Reset learn count and detection start time.
468 monotime_since(&mac
->detect_start_time
, &elapsed
);
469 reset_params
= (elapsed
.tv_sec
> zvrf
->dad_time
);
470 if (is_local
&& !reset_params
) {
471 /* RFC-7432: A PE/VTEP that detects a MAC mobility
472 * event via LOCAL learning starts an M-second timer.
474 * NOTE: This is the START of the probe with count is
475 * 0 during LOCAL learn event.
476 * (mac->dad_count == 0 || elapsed.tv_sec >= zvrf->dad_time)
478 reset_params
= !mac
->dad_count
;
482 if (IS_ZEBRA_DEBUG_VXLAN
)
484 "%s: duplicate addr MAC %s flags 0x%x detection time passed, reset learn count %u"
485 , __PRETTY_FUNCTION__
,
486 prefix_mac2str(&mac
->macaddr
, buf
,
488 mac
->flags
, mac
->dad_count
);
491 /* Start dup. addr detection (DAD) start time,
492 * ONLY during LOCAL learn.
495 monotime(&mac
->detect_start_time
);
497 } else if (!is_local
) {
498 /* For REMOTE MAC, increment detection count
499 * ONLY while in probe window, once window passed,
500 * next local learn event should trigger DAD.
505 /* For LOCAL MAC learn event, once count is reset above via either
506 * initial/start detection time or passed the probe time, the count
507 * needs to be incremented.
512 if (mac
->dad_count
>= zvrf
->dad_max_moves
) {
513 flog_warn(EC_ZEBRA_DUP_MAC_DETECTED
,
514 "VNI %u: MAC %s detected as duplicate during %s VTEP %s",
516 prefix_mac2str(&mac
->macaddr
, buf
, sizeof(buf
)),
517 is_local
? "local update, last" :
518 "remote update, from", inet_ntoa(vtep_ip
));
520 SET_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
);
522 /* Capture Duplicate detection time */
523 mac
->dad_dup_detect_time
= monotime(NULL
);
525 /* Mark all IPs/Neighs as duplicate
526 * associcated with this MAC
528 for (ALL_LIST_ELEMENTS_RO(mac
->neigh_list
, node
, nbr
)) {
530 /* Ony Mark IPs which are Local */
531 if (!CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_LOCAL
))
534 SET_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
);
536 nbr
->dad_dup_detect_time
= monotime(NULL
);
538 flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED
,
539 "VNI %u: MAC %s IP %s detected as duplicate during %s update, inherit duplicate from MAC",
541 prefix_mac2str(&mac
->macaddr
,
543 ipaddr2str(&nbr
->ip
, buf1
, sizeof(buf1
)),
544 is_local
? "local" : "remote");
547 /* Start auto recovery timer for this MAC */
548 THREAD_OFF(mac
->dad_mac_auto_recovery_timer
);
549 if (zvrf
->dad_freeze
&& zvrf
->dad_freeze_time
) {
550 if (IS_ZEBRA_DEBUG_VXLAN
)
552 "%s: duplicate addr MAC %s flags 0x%x auto recovery time %u start"
553 , __PRETTY_FUNCTION__
,
554 prefix_mac2str(&mac
->macaddr
, buf
,
556 mac
->flags
, zvrf
->dad_freeze_time
);
558 thread_add_timer(zrouter
.master
,
559 zebra_vxlan_dad_mac_auto_recovery_exp
,
560 mac
, zvrf
->dad_freeze_time
,
561 &mac
->dad_mac_auto_recovery_timer
);
564 /* In case of local update, do not inform to client (BGPd),
565 * upd_neigh for neigh sequence change.
567 if (zvrf
->dad_freeze
)
568 *is_dup_detect
= true;
572 static void zebra_vxlan_dup_addr_detect_for_neigh(struct zebra_vrf
*zvrf
,
574 struct in_addr vtep_ip
,
580 struct timeval elapsed
= {0, 0};
581 char buf
[ETHER_ADDR_STRLEN
];
582 char buf1
[INET6_ADDRSTRLEN
];
583 bool reset_params
= false;
585 if (!zvrf
->dup_addr_detect
)
588 /* IP is detected as duplicate or inherit dup
589 * state, hold on to install as remote entry
590 * only if freeze is enabled.
592 if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
)) {
593 if (IS_ZEBRA_DEBUG_VXLAN
)
595 "%s: duplicate addr MAC %s IP %s flags 0x%x skip installing, learn count %u recover time %u",
597 prefix_mac2str(&nbr
->emac
, buf
, sizeof(buf
)),
598 ipaddr2str(&nbr
->ip
, buf1
, sizeof(buf1
)),
599 nbr
->flags
, nbr
->dad_count
,
600 zvrf
->dad_freeze_time
);
602 if (zvrf
->dad_freeze
)
603 *is_dup_detect
= true;
605 /* warn-only action, neigh will be installed.
606 * freeze action, it wil not be installed.
614 /* Check if detection time (M-secs) expired.
615 * Reset learn count and detection start time.
616 * During remote mac add, count should already be 1
617 * via local learning.
619 monotime_since(&nbr
->detect_start_time
, &elapsed
);
620 reset_params
= (elapsed
.tv_sec
> zvrf
->dad_time
);
622 if (is_local
&& !reset_params
) {
623 /* RFC-7432: A PE/VTEP that detects a MAC mobility
624 * event via LOCAL learning starts an M-second timer.
626 * NOTE: This is the START of the probe with count is
627 * 0 during LOCAL learn event.
629 reset_params
= !nbr
->dad_count
;
633 if (IS_ZEBRA_DEBUG_VXLAN
)
635 "%s: duplicate addr MAC %s IP %s flags 0x%x detection time passed, reset learn count %u",
637 prefix_mac2str(&nbr
->emac
, buf
, sizeof(buf
)),
638 ipaddr2str(&nbr
->ip
, buf1
, sizeof(buf1
)),
639 nbr
->flags
, nbr
->dad_count
);
640 /* Reset learn count but do not start detection
641 * during REMOTE learn event.
644 /* Start dup. addr detection (DAD) start time,
645 * ONLY during LOCAL learn.
648 monotime(&nbr
->detect_start_time
);
650 } else if (!is_local
) {
651 /* For REMOTE IP/Neigh, increment detection count
652 * ONLY while in probe window, once window passed,
653 * next local learn event should trigger DAD.
658 /* For LOCAL IP/Neigh learn event, once count is reset above via either
659 * initial/start detection time or passed the probe time, the count
660 * needs to be incremented.
665 if (nbr
->dad_count
>= zvrf
->dad_max_moves
) {
666 flog_warn(EC_ZEBRA_DUP_IP_DETECTED
,
667 "VNI %u: MAC %s IP %s detected as duplicate during %s VTEP %s",
669 prefix_mac2str(&nbr
->emac
, buf
, sizeof(buf
)),
670 ipaddr2str(&nbr
->ip
, buf1
, sizeof(buf1
)),
671 is_local
? "local update, last" :
672 "remote update, from",
675 SET_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
);
677 /* Capture Duplicate detection time */
678 nbr
->dad_dup_detect_time
= monotime(NULL
);
680 /* Start auto recovery timer for this IP */
681 THREAD_OFF(nbr
->dad_ip_auto_recovery_timer
);
682 if (zvrf
->dad_freeze
&& zvrf
->dad_freeze_time
) {
683 if (IS_ZEBRA_DEBUG_VXLAN
)
685 "%s: duplicate addr MAC %s IP %s flags 0x%x auto recovery time %u start",
687 prefix_mac2str(&nbr
->emac
, buf
, sizeof(buf
)),
688 ipaddr2str(&nbr
->ip
, buf1
, sizeof(buf1
)),
689 nbr
->flags
, zvrf
->dad_freeze_time
);
691 thread_add_timer(zrouter
.master
,
692 zebra_vxlan_dad_ip_auto_recovery_exp
,
693 nbr
, zvrf
->dad_freeze_time
,
694 &nbr
->dad_ip_auto_recovery_timer
);
696 if (zvrf
->dad_freeze
)
697 *is_dup_detect
= true;
702 * Helper function to determine maximum width of neighbor IP address for
703 * display - just because we're dealing with IPv6 addresses that can
706 static void zvni_find_neigh_addr_width(struct hash_bucket
*bucket
, void *ctxt
)
709 char buf
[INET6_ADDRSTRLEN
];
710 struct neigh_walk_ctx
*wctx
= ctxt
;
713 n
= (zebra_neigh_t
*)bucket
->data
;
715 ipaddr2str(&n
->ip
, buf
, sizeof(buf
));
717 if (width
> wctx
->addr_width
)
718 wctx
->addr_width
= width
;
723 * Print a specific neighbor entry.
725 static void zvni_print_neigh(zebra_neigh_t
*n
, void *ctxt
, json_object
*json
)
728 char buf1
[ETHER_ADDR_STRLEN
];
729 char buf2
[INET6_ADDRSTRLEN
];
730 const char *type_str
;
731 const char *state_str
;
732 bool flags_present
= false;
733 struct zebra_vrf
*zvrf
= NULL
;
734 struct timeval detect_start_time
= {0, 0};
735 char timebuf
[MONOTIME_STRLEN
];
737 zvrf
= zebra_vrf_get_evpn();
741 ipaddr2str(&n
->ip
, buf2
, sizeof(buf2
));
742 prefix_mac2str(&n
->emac
, buf1
, sizeof(buf1
));
743 type_str
= CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
) ?
745 state_str
= IS_ZEBRA_NEIGH_ACTIVE(n
) ? "active" : "inactive";
746 vty
= (struct vty
*)ctxt
;
748 vty_out(vty
, "IP: %s\n",
749 ipaddr2str(&n
->ip
, buf2
, sizeof(buf2
)));
750 vty_out(vty
, " Type: %s\n", type_str
);
751 vty_out(vty
, " State: %s\n", state_str
);
752 vty_out(vty
, " MAC: %s\n",
753 prefix_mac2str(&n
->emac
, buf1
, sizeof(buf1
)));
755 json_object_string_add(json
, "ip", buf2
);
756 json_object_string_add(json
, "type", type_str
);
757 json_object_string_add(json
, "state", state_str
);
758 json_object_string_add(json
, "mac", buf1
);
760 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
)) {
762 vty_out(vty
, " Remote VTEP: %s\n",
763 inet_ntoa(n
->r_vtep_ip
));
765 json_object_string_add(json
, "remoteVtep",
766 inet_ntoa(n
->r_vtep_ip
));
768 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_DEF_GW
)) {
770 vty_out(vty
, " Flags: Default-gateway");
771 flags_present
= true;
773 json_object_boolean_true_add(json
, "defaultGateway");
775 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_ROUTER_FLAG
)) {
778 flags_present
? " ,Router" : " Flags: Router");
779 flags_present
= true;
785 vty_out(vty
, " Local Seq: %u Remote Seq: %u\n",
786 n
->loc_seq
, n
->rem_seq
);
788 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_DUPLICATE
)) {
789 vty_out(vty
, " Duplicate, detected at %s",
790 time_to_string(n
->dad_dup_detect_time
,
792 } else if (n
->dad_count
) {
793 monotime_since(&n
->detect_start_time
,
795 if (detect_start_time
.tv_sec
<= zvrf
->dad_time
) {
796 time_to_string(n
->detect_start_time
.tv_sec
,
799 " Duplicate detection started at %s, detection count %u\n",
800 timebuf
, n
->dad_count
);
804 json_object_int_add(json
, "localSequence", n
->loc_seq
);
805 json_object_int_add(json
, "remoteSequence", n
->rem_seq
);
806 json_object_int_add(json
, "detectionCount",
808 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_DUPLICATE
))
809 json_object_boolean_true_add(json
, "isDuplicate");
811 json_object_boolean_false_add(json
, "isDuplicate");
818 * Print neighbor hash entry - called for display of all neighbors.
820 static void zvni_print_neigh_hash(struct hash_bucket
*bucket
, void *ctxt
)
823 json_object
*json_vni
= NULL
, *json_row
= NULL
;
825 char buf1
[ETHER_ADDR_STRLEN
];
826 char buf2
[INET6_ADDRSTRLEN
];
827 struct neigh_walk_ctx
*wctx
= ctxt
;
828 const char *state_str
;
831 json_vni
= wctx
->json
;
832 n
= (zebra_neigh_t
*)bucket
->data
;
835 json_row
= json_object_new_object();
837 prefix_mac2str(&n
->emac
, buf1
, sizeof(buf1
));
838 ipaddr2str(&n
->ip
, buf2
, sizeof(buf2
));
839 state_str
= IS_ZEBRA_NEIGH_ACTIVE(n
) ? "active" : "inactive";
840 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
)) {
841 if (wctx
->flags
& SHOW_REMOTE_NEIGH_FROM_VTEP
)
844 if (json_vni
== NULL
) {
845 vty_out(vty
, "%*s %-6s %-8s %-17s %u/%u\n",
846 -wctx
->addr_width
, buf2
, "local",
847 state_str
, buf1
, n
->loc_seq
, n
->rem_seq
);
849 json_object_string_add(json_row
, "type", "local");
850 json_object_string_add(json_row
, "state", state_str
);
851 json_object_string_add(json_row
, "mac", buf1
);
852 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_DEF_GW
))
853 json_object_boolean_true_add(
854 json_row
, "defaultGateway");
855 json_object_int_add(json_row
, "localSequence",
857 json_object_int_add(json_row
, "remoteSequence",
859 json_object_int_add(json_row
, "detectionCount",
861 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_DUPLICATE
))
862 json_object_boolean_true_add(json_row
,
865 json_object_boolean_false_add(json_row
,
869 } else if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
)) {
870 if ((wctx
->flags
& SHOW_REMOTE_NEIGH_FROM_VTEP
) &&
871 !IPV4_ADDR_SAME(&n
->r_vtep_ip
, &wctx
->r_vtep_ip
))
874 if (json_vni
== NULL
) {
875 if ((wctx
->flags
& SHOW_REMOTE_NEIGH_FROM_VTEP
) &&
877 vty_out(vty
, "%*s %-6s %-8s %-17s %-21s %s\n",
878 -wctx
->addr_width
, "Neighbor", "Type",
879 "State", "MAC", "Remote VTEP",
881 vty_out(vty
, "%*s %-6s %-8s %-17s %-21s %u/%u\n",
882 -wctx
->addr_width
, buf2
, "remote", state_str
,
883 buf1
, inet_ntoa(n
->r_vtep_ip
), n
->loc_seq
, n
->rem_seq
);
885 json_object_string_add(json_row
, "type", "remote");
886 json_object_string_add(json_row
, "state", state_str
);
887 json_object_string_add(json_row
, "mac", buf1
);
888 json_object_string_add(json_row
, "remoteVtep",
889 inet_ntoa(n
->r_vtep_ip
));
890 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_DEF_GW
))
891 json_object_boolean_true_add(json_row
,
893 json_object_int_add(json_row
, "localSequence",
895 json_object_int_add(json_row
, "remoteSequence",
897 json_object_int_add(json_row
, "detectionCount",
899 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_DUPLICATE
))
900 json_object_boolean_true_add(json_row
,
903 json_object_boolean_false_add(json_row
,
910 json_object_object_add(json_vni
, buf2
, json_row
);
914 * Print neighbor hash entry in detail - called for display of all neighbors.
916 static void zvni_print_neigh_hash_detail(struct hash_bucket
*bucket
, void *ctxt
)
919 json_object
*json_vni
= NULL
, *json_row
= NULL
;
921 char buf
[INET6_ADDRSTRLEN
];
922 struct neigh_walk_ctx
*wctx
= ctxt
;
925 json_vni
= wctx
->json
;
926 n
= (zebra_neigh_t
*)bucket
->data
;
930 ipaddr2str(&n
->ip
, buf
, sizeof(buf
));
932 json_row
= json_object_new_object();
934 zvni_print_neigh(n
, vty
, json_row
);
937 json_object_object_add(json_vni
, buf
, json_row
);
941 * Print neighbors for all VNI.
943 static void zvni_print_neigh_hash_all_vni(struct hash_bucket
*bucket
,
947 json_object
*json
= NULL
, *json_vni
= NULL
;
950 struct neigh_walk_ctx wctx
;
951 char vni_str
[VNI_STR_LEN
];
954 vty
= (struct vty
*)args
[0];
955 json
= (json_object
*)args
[1];
956 print_dup
= (uint32_t)(uintptr_t)args
[2];
958 zvni
= (zebra_vni_t
*)bucket
->data
;
960 num_neigh
= hashcount(zvni
->neigh_table
);
963 num_neigh
= num_dup_detected_neighs(zvni
);
967 "\nVNI %u #ARP (IPv4 and IPv6, local and remote) %u\n\n",
968 zvni
->vni
, num_neigh
);
970 json_vni
= json_object_new_object();
971 json_object_int_add(json_vni
, "numArpNd", num_neigh
);
972 snprintf(vni_str
, VNI_STR_LEN
, "%u", zvni
->vni
);
977 json_object_object_add(json
, vni_str
, json_vni
);
981 /* Since we have IPv6 addresses to deal with which can vary widely in
982 * size, we try to be a bit more elegant in display by first computing
985 memset(&wctx
, 0, sizeof(struct neigh_walk_ctx
));
988 wctx
.addr_width
= 15;
989 wctx
.json
= json_vni
;
990 hash_iterate(zvni
->neigh_table
, zvni_find_neigh_addr_width
, &wctx
);
993 vty_out(vty
, "%*s %-6s %-8s %-17s %-21s %s\n",
994 -wctx
.addr_width
, "IP", "Type",
995 "State", "MAC", "Remote VTEP", "Seq #'s");
998 hash_iterate(zvni
->neigh_table
, zvni_print_dad_neigh_hash
,
1001 hash_iterate(zvni
->neigh_table
, zvni_print_neigh_hash
, &wctx
);
1004 json_object_object_add(json
, vni_str
, json_vni
);
1007 static void zvni_print_dad_neigh_hash(struct hash_bucket
*bucket
, void *ctxt
)
1011 nbr
= (zebra_neigh_t
*)bucket
->data
;
1015 if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
))
1016 zvni_print_neigh_hash(bucket
, ctxt
);
1019 static void zvni_print_dad_neigh_hash_detail(struct hash_bucket
*bucket
,
1024 nbr
= (zebra_neigh_t
*)bucket
->data
;
1028 if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
))
1029 zvni_print_neigh_hash_detail(bucket
, ctxt
);
1033 * Print neighbors for all VNIs in detail.
1035 static void zvni_print_neigh_hash_all_vni_detail(struct hash_bucket
*bucket
,
1039 json_object
*json
= NULL
, *json_vni
= NULL
;
1042 struct neigh_walk_ctx wctx
;
1043 char vni_str
[VNI_STR_LEN
];
1046 vty
= (struct vty
*)args
[0];
1047 json
= (json_object
*)args
[1];
1048 print_dup
= (uint32_t)(uintptr_t)args
[2];
1050 zvni
= (zebra_vni_t
*)bucket
->data
;
1053 vty_out(vty
, "{}\n");
1056 num_neigh
= hashcount(zvni
->neigh_table
);
1058 if (print_dup
&& num_dup_detected_neighs(zvni
) == 0)
1063 "\nVNI %u #ARP (IPv4 and IPv6, local and remote) %u\n\n",
1064 zvni
->vni
, num_neigh
);
1066 json_vni
= json_object_new_object();
1067 json_object_int_add(json_vni
, "numArpNd", num_neigh
);
1068 snprintf(vni_str
, VNI_STR_LEN
, "%u", zvni
->vni
);
1072 json_object_object_add(json
, vni_str
, json_vni
);
1076 memset(&wctx
, 0, sizeof(struct neigh_walk_ctx
));
1079 wctx
.addr_width
= 15;
1080 wctx
.json
= json_vni
;
1083 hash_iterate(zvni
->neigh_table
,
1084 zvni_print_dad_neigh_hash_detail
, &wctx
);
1086 hash_iterate(zvni
->neigh_table
, zvni_print_neigh_hash_detail
,
1090 json_object_object_add(json
, vni_str
, json_vni
);
1093 /* print a specific next hop for an l3vni */
1094 static void zl3vni_print_nh(zebra_neigh_t
*n
, struct vty
*vty
,
1097 char buf1
[ETHER_ADDR_STRLEN
];
1098 char buf2
[INET6_ADDRSTRLEN
];
1099 json_object
*json_hosts
= NULL
;
1100 struct host_rb_entry
*hle
;
1103 vty_out(vty
, "Ip: %s\n",
1104 ipaddr2str(&n
->ip
, buf2
, sizeof(buf2
)));
1105 vty_out(vty
, " RMAC: %s\n",
1106 prefix_mac2str(&n
->emac
, buf1
, sizeof(buf1
)));
1107 vty_out(vty
, " Refcount: %d\n",
1108 rb_host_count(&n
->host_rb
));
1109 vty_out(vty
, " Prefixes:\n");
1110 RB_FOREACH (hle
, host_rb_tree_entry
, &n
->host_rb
)
1111 vty_out(vty
, " %s\n",
1112 prefix2str(&hle
->p
, buf2
, sizeof(buf2
)));
1114 json_hosts
= json_object_new_array();
1115 json_object_string_add(
1116 json
, "ip", ipaddr2str(&(n
->ip
), buf2
, sizeof(buf2
)));
1117 json_object_string_add(
1119 prefix_mac2str(&n
->emac
, buf2
, sizeof(buf2
)));
1120 json_object_int_add(json
, "refCount",
1121 rb_host_count(&n
->host_rb
));
1122 RB_FOREACH (hle
, host_rb_tree_entry
, &n
->host_rb
)
1123 json_object_array_add(json_hosts
,
1124 json_object_new_string(prefix2str(
1125 &hle
->p
, buf2
, sizeof(buf2
))));
1126 json_object_object_add(json
, "prefixList", json_hosts
);
1130 /* Print a specific RMAC entry */
1131 static void zl3vni_print_rmac(zebra_mac_t
*zrmac
, struct vty
*vty
,
1134 char buf1
[ETHER_ADDR_STRLEN
];
1135 char buf2
[PREFIX_STRLEN
];
1136 json_object
*json_hosts
= NULL
;
1137 struct host_rb_entry
*hle
;
1140 vty_out(vty
, "MAC: %s\n",
1141 prefix_mac2str(&zrmac
->macaddr
, buf1
, sizeof(buf1
)));
1142 vty_out(vty
, " Remote VTEP: %s\n",
1143 inet_ntoa(zrmac
->fwd_info
.r_vtep_ip
));
1144 vty_out(vty
, " Refcount: %d\n", rb_host_count(&zrmac
->host_rb
));
1145 vty_out(vty
, " Prefixes:\n");
1146 RB_FOREACH (hle
, host_rb_tree_entry
, &zrmac
->host_rb
)
1147 vty_out(vty
, " %s\n",
1148 prefix2str(&hle
->p
, buf2
, sizeof(buf2
)));
1150 json_hosts
= json_object_new_array();
1151 json_object_string_add(
1153 prefix_mac2str(&zrmac
->macaddr
, buf1
, sizeof(buf1
)));
1154 json_object_string_add(json
, "vtepIp",
1155 inet_ntoa(zrmac
->fwd_info
.r_vtep_ip
));
1156 json_object_int_add(json
, "refCount",
1157 rb_host_count(&zrmac
->host_rb
));
1158 json_object_int_add(json
, "localSequence", zrmac
->loc_seq
);
1159 json_object_int_add(json
, "remoteSequence", zrmac
->rem_seq
);
1160 RB_FOREACH (hle
, host_rb_tree_entry
, &zrmac
->host_rb
)
1161 json_object_array_add(
1163 json_object_new_string(prefix2str(
1164 &hle
->p
, buf2
, sizeof(buf2
))));
1165 json_object_object_add(json
, "prefixList", json_hosts
);
1170 * Print a specific MAC entry.
1172 static void zvni_print_mac(zebra_mac_t
*mac
, void *ctxt
, json_object
*json
)
1175 zebra_neigh_t
*n
= NULL
;
1176 struct listnode
*node
= NULL
;
1177 char buf1
[ETHER_ADDR_STRLEN
];
1178 char buf2
[INET6_ADDRSTRLEN
];
1179 struct zebra_vrf
*zvrf
;
1180 struct timeval detect_start_time
= {0, 0};
1181 char timebuf
[MONOTIME_STRLEN
];
1183 zvrf
= zebra_vrf_get_evpn();
1187 vty
= (struct vty
*)ctxt
;
1188 prefix_mac2str(&mac
->macaddr
, buf1
, sizeof(buf1
));
1191 json_object
*json_mac
= json_object_new_object();
1193 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
)) {
1194 struct zebra_ns
*zns
;
1195 struct interface
*ifp
;
1198 ifindex
= mac
->fwd_info
.local
.ifindex
;
1199 zns
= zebra_ns_lookup(NS_DEFAULT
);
1200 ifp
= if_lookup_by_index_per_ns(zns
, ifindex
);
1203 json_object_string_add(json_mac
, "type", "local");
1204 json_object_string_add(json_mac
, "intf", ifp
->name
);
1205 json_object_int_add(json_mac
, "ifindex", ifindex
);
1206 if (mac
->fwd_info
.local
.vid
)
1207 json_object_int_add(json_mac
, "vlan",
1208 mac
->fwd_info
.local
.vid
);
1209 } else if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
)) {
1210 json_object_string_add(json_mac
, "type", "remote");
1211 json_object_string_add(
1212 json_mac
, "remoteVtep",
1213 inet_ntoa(mac
->fwd_info
.r_vtep_ip
));
1214 } else if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_AUTO
))
1215 json_object_string_add(json_mac
, "type", "auto");
1217 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_STICKY
))
1218 json_object_boolean_true_add(json_mac
, "stickyMac");
1220 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DEF_GW
))
1221 json_object_boolean_true_add(json_mac
,
1224 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE_DEF_GW
))
1225 json_object_boolean_true_add(json_mac
,
1226 "remoteGatewayMac");
1228 json_object_int_add(json_mac
, "localSequence", mac
->loc_seq
);
1229 json_object_int_add(json_mac
, "remoteSequence", mac
->rem_seq
);
1231 json_object_int_add(json_mac
, "detectionCount", mac
->dad_count
);
1232 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
))
1233 json_object_boolean_true_add(json_mac
, "isDuplicate");
1235 json_object_boolean_false_add(json_mac
, "isDuplicate");
1237 /* print all the associated neigh */
1238 if (!listcount(mac
->neigh_list
))
1239 json_object_string_add(json_mac
, "neighbors", "none");
1241 json_object
*json_active_nbrs
= json_object_new_array();
1242 json_object
*json_inactive_nbrs
=
1243 json_object_new_array();
1244 json_object
*json_nbrs
= json_object_new_object();
1246 for (ALL_LIST_ELEMENTS_RO(mac
->neigh_list
, node
, n
)) {
1247 if (IS_ZEBRA_NEIGH_ACTIVE(n
))
1248 json_object_array_add(
1250 json_object_new_string(
1255 json_object_array_add(
1257 json_object_new_string(
1263 json_object_object_add(json_nbrs
, "active",
1265 json_object_object_add(json_nbrs
, "inactive",
1266 json_inactive_nbrs
);
1267 json_object_object_add(json_mac
, "neighbors",
1271 json_object_object_add(json
, buf1
, json_mac
);
1273 vty_out(vty
, "MAC: %s\n", buf1
);
1275 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
)) {
1276 struct zebra_ns
*zns
;
1277 struct interface
*ifp
;
1280 ifindex
= mac
->fwd_info
.local
.ifindex
;
1281 zns
= zebra_ns_lookup(NS_DEFAULT
);
1282 ifp
= if_lookup_by_index_per_ns(zns
, ifindex
);
1285 vty_out(vty
, " Intf: %s(%u)", ifp
->name
, ifindex
);
1286 if (mac
->fwd_info
.local
.vid
)
1287 vty_out(vty
, " VLAN: %u",
1288 mac
->fwd_info
.local
.vid
);
1289 } else if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
)) {
1290 vty_out(vty
, " Remote VTEP: %s",
1291 inet_ntoa(mac
->fwd_info
.r_vtep_ip
));
1292 } else if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_AUTO
)) {
1293 vty_out(vty
, " Auto Mac ");
1296 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_STICKY
))
1297 vty_out(vty
, " Sticky Mac ");
1299 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DEF_GW
))
1300 vty_out(vty
, " Default-gateway Mac ");
1302 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE_DEF_GW
))
1303 vty_out(vty
, " Remote-gateway Mac ");
1306 vty_out(vty
, " Local Seq: %u Remote Seq: %u", mac
->loc_seq
,
1310 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
)) {
1311 vty_out(vty
, " Duplicate, detected at %s",
1312 time_to_string(mac
->dad_dup_detect_time
,
1314 } else if (mac
->dad_count
) {
1315 monotime_since(&mac
->detect_start_time
,
1316 &detect_start_time
);
1317 if (detect_start_time
.tv_sec
<= zvrf
->dad_time
) {
1318 time_to_string(mac
->detect_start_time
.tv_sec
,
1321 " Duplicate detection started at %s, detection count %u\n",
1322 timebuf
, mac
->dad_count
);
1326 /* print all the associated neigh */
1327 vty_out(vty
, " Neighbors:\n");
1328 if (!listcount(mac
->neigh_list
))
1329 vty_out(vty
, " No Neighbors\n");
1331 for (ALL_LIST_ELEMENTS_RO(mac
->neigh_list
, node
, n
)) {
1332 vty_out(vty
, " %s %s\n",
1333 ipaddr2str(&n
->ip
, buf2
, sizeof(buf2
)),
1334 (IS_ZEBRA_NEIGH_ACTIVE(n
)
1345 * Print MAC hash entry - called for display of all MACs.
1347 static void zvni_print_mac_hash(struct hash_bucket
*bucket
, void *ctxt
)
1350 json_object
*json_mac_hdr
= NULL
, *json_mac
= NULL
;
1352 char buf1
[ETHER_ADDR_STRLEN
];
1353 struct mac_walk_ctx
*wctx
= ctxt
;
1356 json_mac_hdr
= wctx
->json
;
1357 mac
= (zebra_mac_t
*)bucket
->data
;
1359 prefix_mac2str(&mac
->macaddr
, buf1
, sizeof(buf1
));
1362 json_mac
= json_object_new_object();
1364 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
)) {
1365 struct zebra_ns
*zns
;
1367 struct interface
*ifp
;
1370 if (wctx
->flags
& SHOW_REMOTE_MAC_FROM_VTEP
)
1373 zns
= zebra_ns_lookup(NS_DEFAULT
);
1374 ifindex
= mac
->fwd_info
.local
.ifindex
;
1375 ifp
= if_lookup_by_index_per_ns(zns
, ifindex
);
1376 if (!ifp
) // unexpected
1378 vid
= mac
->fwd_info
.local
.vid
;
1379 if (json_mac_hdr
== NULL
)
1380 vty_out(vty
, "%-17s %-6s %-21s", buf1
, "local",
1383 json_object_string_add(json_mac
, "type", "local");
1384 json_object_string_add(json_mac
, "intf", ifp
->name
);
1387 if (json_mac_hdr
== NULL
)
1388 vty_out(vty
, " %-5u", vid
);
1390 json_object_int_add(json_mac
, "vlan", vid
);
1391 } else /* No vid? fill out the space */
1392 if (json_mac_hdr
== NULL
)
1393 vty_out(vty
, " %-5s", "");
1394 if (json_mac_hdr
== NULL
) {
1395 vty_out(vty
, " %u/%u", mac
->loc_seq
, mac
->rem_seq
);
1398 json_object_int_add(json_mac
, "localSequence",
1400 json_object_int_add(json_mac
, "remoteSequence",
1402 json_object_int_add(json_mac
, "detectionCount",
1404 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
))
1405 json_object_boolean_true_add(json_mac
,
1408 json_object_boolean_false_add(json_mac
,
1410 json_object_object_add(json_mac_hdr
, buf1
, json_mac
);
1415 } else if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
)) {
1417 if ((wctx
->flags
& SHOW_REMOTE_MAC_FROM_VTEP
) &&
1418 !IPV4_ADDR_SAME(&mac
->fwd_info
.r_vtep_ip
,
1422 if (json_mac_hdr
== NULL
) {
1423 if ((wctx
->flags
& SHOW_REMOTE_MAC_FROM_VTEP
) &&
1424 (wctx
->count
== 0)) {
1425 vty_out(vty
, "\nVNI %u\n\n", wctx
->zvni
->vni
);
1426 vty_out(vty
, "%-17s %-6s %-21s %-5s %s\n",
1427 "MAC", "Type", "Intf/Remote VTEP",
1430 vty_out(vty
, "%-17s %-6s %-21s %-5s %u/%u\n", buf1
,
1431 "remote", inet_ntoa(mac
->fwd_info
.r_vtep_ip
),
1432 "", mac
->loc_seq
, mac
->rem_seq
);
1434 json_object_string_add(json_mac
, "type", "remote");
1435 json_object_string_add(json_mac
, "remoteVtep",
1436 inet_ntoa(mac
->fwd_info
.r_vtep_ip
));
1437 json_object_object_add(json_mac_hdr
, buf1
, json_mac
);
1438 json_object_int_add(json_mac
, "localSequence",
1440 json_object_int_add(json_mac
, "remoteSequence",
1442 json_object_int_add(json_mac
, "detectionCount",
1444 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
))
1445 json_object_boolean_true_add(json_mac
,
1448 json_object_boolean_false_add(json_mac
,
1457 /* Print Duplicate MAC */
1458 static void zvni_print_dad_mac_hash(struct hash_bucket
*bucket
, void *ctxt
)
1462 mac
= (zebra_mac_t
*)bucket
->data
;
1466 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
))
1467 zvni_print_mac_hash(bucket
, ctxt
);
1471 * Print MAC hash entry in detail - called for display of all MACs.
1473 static void zvni_print_mac_hash_detail(struct hash_bucket
*bucket
, void *ctxt
)
1476 json_object
*json_mac_hdr
= NULL
;
1478 struct mac_walk_ctx
*wctx
= ctxt
;
1479 char buf1
[ETHER_ADDR_STRLEN
];
1482 json_mac_hdr
= wctx
->json
;
1483 mac
= (zebra_mac_t
*)bucket
->data
;
1488 prefix_mac2str(&mac
->macaddr
, buf1
, sizeof(buf1
));
1490 zvni_print_mac(mac
, vty
, json_mac_hdr
);
1493 /* Print Duplicate MAC in detail */
1494 static void zvni_print_dad_mac_hash_detail(struct hash_bucket
*bucket
,
1499 mac
= (zebra_mac_t
*)bucket
->data
;
1503 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
))
1504 zvni_print_mac_hash_detail(bucket
, ctxt
);
1508 * Print MACs for all VNI.
1510 static void zvni_print_mac_hash_all_vni(struct hash_bucket
*bucket
, void *ctxt
)
1513 json_object
*json
= NULL
, *json_vni
= NULL
;
1514 json_object
*json_mac
= NULL
;
1517 struct mac_walk_ctx
*wctx
= ctxt
;
1518 char vni_str
[VNI_STR_LEN
];
1520 vty
= (struct vty
*)wctx
->vty
;
1521 json
= (struct json_object
*)wctx
->json
;
1523 zvni
= (zebra_vni_t
*)bucket
->data
;
1526 /*We are iterating over a new VNI, set the count to 0*/
1529 num_macs
= num_valid_macs(zvni
);
1533 if (wctx
->print_dup
)
1534 num_macs
= num_dup_detected_macs(zvni
);
1537 json_vni
= json_object_new_object();
1538 json_mac
= json_object_new_object();
1539 snprintf(vni_str
, VNI_STR_LEN
, "%u", zvni
->vni
);
1542 if (!CHECK_FLAG(wctx
->flags
, SHOW_REMOTE_MAC_FROM_VTEP
)) {
1544 vty_out(vty
, "\nVNI %u #MACs (local and remote) %u\n\n",
1545 zvni
->vni
, num_macs
);
1546 vty_out(vty
, "%-17s %-6s %-21s %-5s %s\n", "MAC",
1547 "Type", "Intf/Remote VTEP", "VLAN", "Seq #'s");
1549 json_object_int_add(json_vni
, "numMacs", num_macs
);
1554 json_object_int_add(json_vni
, "numMacs", num_macs
);
1555 json_object_object_add(json
, vni_str
, json_vni
);
1560 /* assign per-vni to wctx->json object to fill macs
1561 * under the vni. Re-assign primary json object to fill
1562 * next vni information.
1564 wctx
->json
= json_mac
;
1565 if (wctx
->print_dup
)
1566 hash_iterate(zvni
->mac_table
, zvni_print_dad_mac_hash
, wctx
);
1568 hash_iterate(zvni
->mac_table
, zvni_print_mac_hash
, wctx
);
1572 json_object_object_add(json_vni
, "macs", json_mac
);
1573 json_object_object_add(json
, vni_str
, json_vni
);
1578 * Print MACs in detail for all VNI.
1580 static void zvni_print_mac_hash_all_vni_detail(struct hash_bucket
*bucket
,
1584 json_object
*json
= NULL
, *json_vni
= NULL
;
1585 json_object
*json_mac
= NULL
;
1588 struct mac_walk_ctx
*wctx
= ctxt
;
1589 char vni_str
[VNI_STR_LEN
];
1591 vty
= (struct vty
*)wctx
->vty
;
1592 json
= (struct json_object
*)wctx
->json
;
1594 zvni
= (zebra_vni_t
*)bucket
->data
;
1597 vty_out(vty
, "{}\n");
1602 /*We are iterating over a new VNI, set the count to 0*/
1605 num_macs
= num_valid_macs(zvni
);
1609 if (wctx
->print_dup
&& (num_dup_detected_macs(zvni
) == 0))
1613 json_vni
= json_object_new_object();
1614 json_mac
= json_object_new_object();
1615 snprintf(vni_str
, VNI_STR_LEN
, "%u", zvni
->vni
);
1618 if (!CHECK_FLAG(wctx
->flags
, SHOW_REMOTE_MAC_FROM_VTEP
)) {
1620 vty_out(vty
, "\nVNI %u #MACs (local and remote) %u\n\n",
1621 zvni
->vni
, num_macs
);
1623 json_object_int_add(json_vni
, "numMacs", num_macs
);
1625 /* assign per-vni to wctx->json object to fill macs
1626 * under the vni. Re-assign primary json object to fill
1627 * next vni information.
1629 wctx
->json
= json_mac
;
1630 if (wctx
->print_dup
)
1631 hash_iterate(zvni
->mac_table
, zvni_print_dad_mac_hash_detail
,
1634 hash_iterate(zvni
->mac_table
, zvni_print_mac_hash_detail
, wctx
);
1638 json_object_object_add(json_vni
, "macs", json_mac
);
1639 json_object_object_add(json
, vni_str
, json_vni
);
1643 static void zl3vni_print_nh_hash(struct hash_bucket
*bucket
, void *ctx
)
1645 struct nh_walk_ctx
*wctx
= NULL
;
1646 struct vty
*vty
= NULL
;
1647 struct json_object
*json_vni
= NULL
;
1648 struct json_object
*json_nh
= NULL
;
1649 zebra_neigh_t
*n
= NULL
;
1650 char buf1
[ETHER_ADDR_STRLEN
];
1651 char buf2
[INET6_ADDRSTRLEN
];
1653 wctx
= (struct nh_walk_ctx
*)ctx
;
1655 json_vni
= wctx
->json
;
1657 json_nh
= json_object_new_object();
1658 n
= (zebra_neigh_t
*)bucket
->data
;
1661 vty_out(vty
, "%-15s %-17s\n",
1662 ipaddr2str(&(n
->ip
), buf2
, sizeof(buf2
)),
1663 prefix_mac2str(&n
->emac
, buf1
, sizeof(buf1
)));
1665 json_object_string_add(json_nh
, "nexthopIp",
1666 ipaddr2str(&n
->ip
, buf2
, sizeof(buf2
)));
1667 json_object_string_add(
1668 json_nh
, "routerMac",
1669 prefix_mac2str(&n
->emac
, buf1
, sizeof(buf1
)));
1670 json_object_object_add(json_vni
,
1671 ipaddr2str(&(n
->ip
), buf2
, sizeof(buf2
)),
1676 static void zl3vni_print_nh_hash_all_vni(struct hash_bucket
*bucket
,
1679 struct vty
*vty
= NULL
;
1680 json_object
*json
= NULL
;
1681 json_object
*json_vni
= NULL
;
1682 zebra_l3vni_t
*zl3vni
= NULL
;
1683 uint32_t num_nh
= 0;
1684 struct nh_walk_ctx wctx
;
1685 char vni_str
[VNI_STR_LEN
];
1687 vty
= (struct vty
*)args
[0];
1688 json
= (struct json_object
*)args
[1];
1690 zl3vni
= (zebra_l3vni_t
*)bucket
->data
;
1692 num_nh
= hashcount(zl3vni
->nh_table
);
1697 json_vni
= json_object_new_object();
1698 snprintf(vni_str
, VNI_STR_LEN
, "%u", zl3vni
->vni
);
1702 vty_out(vty
, "\nVNI %u #Next-Hops %u\n\n", zl3vni
->vni
, num_nh
);
1703 vty_out(vty
, "%-15s %-17s\n", "IP", "RMAC");
1705 json_object_int_add(json_vni
, "numNextHops", num_nh
);
1707 memset(&wctx
, 0, sizeof(struct nh_walk_ctx
));
1709 wctx
.json
= json_vni
;
1710 hash_iterate(zl3vni
->nh_table
, zl3vni_print_nh_hash
, &wctx
);
1712 json_object_object_add(json
, vni_str
, json_vni
);
1715 static void zl3vni_print_rmac_hash_all_vni(struct hash_bucket
*bucket
,
1718 struct vty
*vty
= NULL
;
1719 json_object
*json
= NULL
;
1720 json_object
*json_vni
= NULL
;
1721 zebra_l3vni_t
*zl3vni
= NULL
;
1723 struct rmac_walk_ctx wctx
;
1724 char vni_str
[VNI_STR_LEN
];
1726 vty
= (struct vty
*)args
[0];
1727 json
= (struct json_object
*)args
[1];
1729 zl3vni
= (zebra_l3vni_t
*)bucket
->data
;
1731 num_rmacs
= hashcount(zl3vni
->rmac_table
);
1736 json_vni
= json_object_new_object();
1737 snprintf(vni_str
, VNI_STR_LEN
, "%u", zl3vni
->vni
);
1741 vty_out(vty
, "\nVNI %u #RMACs %u\n\n", zl3vni
->vni
, num_rmacs
);
1742 vty_out(vty
, "%-17s %-21s\n", "RMAC", "Remote VTEP");
1744 json_object_int_add(json_vni
, "numRmacs", num_rmacs
);
1746 /* assign per-vni to wctx->json object to fill macs
1747 * under the vni. Re-assign primary json object to fill
1748 * next vni information.
1750 memset(&wctx
, 0, sizeof(struct rmac_walk_ctx
));
1752 wctx
.json
= json_vni
;
1753 hash_iterate(zl3vni
->rmac_table
, zl3vni_print_rmac_hash
, &wctx
);
1755 json_object_object_add(json
, vni_str
, json_vni
);
1758 static void zl3vni_print_rmac_hash(struct hash_bucket
*bucket
, void *ctx
)
1760 zebra_mac_t
*zrmac
= NULL
;
1761 struct rmac_walk_ctx
*wctx
= NULL
;
1762 struct vty
*vty
= NULL
;
1763 struct json_object
*json
= NULL
;
1764 struct json_object
*json_rmac
= NULL
;
1765 char buf
[ETHER_ADDR_STRLEN
];
1767 wctx
= (struct rmac_walk_ctx
*)ctx
;
1771 json_rmac
= json_object_new_object();
1772 zrmac
= (zebra_mac_t
*)bucket
->data
;
1775 vty_out(vty
, "%-17s %-21s\n",
1776 prefix_mac2str(&zrmac
->macaddr
, buf
, sizeof(buf
)),
1777 inet_ntoa(zrmac
->fwd_info
.r_vtep_ip
));
1779 json_object_string_add(
1780 json_rmac
, "routerMac",
1781 prefix_mac2str(&zrmac
->macaddr
, buf
, sizeof(buf
)));
1782 json_object_string_add(json_rmac
, "vtepIp",
1783 inet_ntoa(zrmac
->fwd_info
.r_vtep_ip
));
1784 json_object_object_add(
1785 json
, prefix_mac2str(&zrmac
->macaddr
, buf
, sizeof(buf
)),
1790 /* print a specific L3 VNI entry */
1791 static void zl3vni_print(zebra_l3vni_t
*zl3vni
, void **ctx
)
1793 char buf
[ETHER_ADDR_STRLEN
];
1794 struct vty
*vty
= NULL
;
1795 json_object
*json
= NULL
;
1796 zebra_vni_t
*zvni
= NULL
;
1797 json_object
*json_vni_list
= NULL
;
1798 struct listnode
*node
= NULL
, *nnode
= NULL
;
1804 vty_out(vty
, "VNI: %u\n", zl3vni
->vni
);
1805 vty_out(vty
, " Type: %s\n", "L3");
1806 vty_out(vty
, " Tenant VRF: %s\n", zl3vni_vrf_name(zl3vni
));
1807 vty_out(vty
, " Local Vtep Ip: %s\n",
1808 inet_ntoa(zl3vni
->local_vtep_ip
));
1809 vty_out(vty
, " Vxlan-Intf: %s\n",
1810 zl3vni_vxlan_if_name(zl3vni
));
1811 vty_out(vty
, " SVI-If: %s\n", zl3vni_svi_if_name(zl3vni
));
1812 vty_out(vty
, " State: %s\n", zl3vni_state2str(zl3vni
));
1813 vty_out(vty
, " VNI Filter: %s\n",
1814 CHECK_FLAG(zl3vni
->filter
, PREFIX_ROUTES_ONLY
)
1815 ? "prefix-routes-only"
1817 vty_out(vty
, " Router MAC: %s\n",
1818 zl3vni_rmac2str(zl3vni
, buf
, sizeof(buf
)));
1819 vty_out(vty
, " L2 VNIs: ");
1820 for (ALL_LIST_ELEMENTS(zl3vni
->l2vnis
, node
, nnode
, zvni
))
1821 vty_out(vty
, "%u ", zvni
->vni
);
1824 json_vni_list
= json_object_new_array();
1825 json_object_int_add(json
, "vni", zl3vni
->vni
);
1826 json_object_string_add(json
, "type", "L3");
1827 json_object_string_add(json
, "localVtepIp",
1828 inet_ntoa(zl3vni
->local_vtep_ip
));
1829 json_object_string_add(json
, "vxlanIntf",
1830 zl3vni_vxlan_if_name(zl3vni
));
1831 json_object_string_add(json
, "sviIntf",
1832 zl3vni_svi_if_name(zl3vni
));
1833 json_object_string_add(json
, "state", zl3vni_state2str(zl3vni
));
1834 json_object_string_add(json
, "vrf", zl3vni_vrf_name(zl3vni
));
1835 json_object_string_add(
1837 zl3vni_rmac2str(zl3vni
, buf
, sizeof(buf
)));
1838 json_object_string_add(
1840 CHECK_FLAG(zl3vni
->filter
, PREFIX_ROUTES_ONLY
)
1841 ? "prefix-routes-only"
1843 for (ALL_LIST_ELEMENTS(zl3vni
->l2vnis
, node
, nnode
, zvni
)) {
1844 json_object_array_add(json_vni_list
,
1845 json_object_new_int(zvni
->vni
));
1847 json_object_object_add(json
, "l2Vnis", json_vni_list
);
1852 * Print a specific VNI entry.
1854 static void zvni_print(zebra_vni_t
*zvni
, void **ctxt
)
1857 zebra_vtep_t
*zvtep
;
1860 json_object
*json
= NULL
;
1861 json_object
*json_vtep_list
= NULL
;
1862 json_object
*json_ip_str
= NULL
;
1868 vty_out(vty
, "VNI: %u\n", zvni
->vni
);
1869 vty_out(vty
, " Type: %s\n", "L2");
1870 vty_out(vty
, " Tenant VRF: %s\n", vrf_id_to_name(zvni
->vrf_id
));
1872 json_object_int_add(json
, "vni", zvni
->vni
);
1873 json_object_string_add(json
, "type", "L2");
1874 json_object_string_add(json
, "vrf",
1875 vrf_id_to_name(zvni
->vrf_id
));
1878 if (!zvni
->vxlan_if
) { // unexpected
1880 vty_out(vty
, " VxLAN interface: unknown\n");
1883 num_macs
= num_valid_macs(zvni
);
1884 num_neigh
= hashcount(zvni
->neigh_table
);
1886 vty_out(vty
, " VxLAN interface: %s\n", zvni
->vxlan_if
->name
);
1887 vty_out(vty
, " VxLAN ifIndex: %u\n", zvni
->vxlan_if
->ifindex
);
1888 vty_out(vty
, " Local VTEP IP: %s\n",
1889 inet_ntoa(zvni
->local_vtep_ip
));
1890 vty_out(vty
, " Mcast group: %s\n",
1891 inet_ntoa(zvni
->mcast_grp
));
1893 json_object_string_add(json
, "vxlanInterface",
1894 zvni
->vxlan_if
->name
);
1895 json_object_int_add(json
, "ifindex", zvni
->vxlan_if
->ifindex
);
1896 json_object_string_add(json
, "vtepIp",
1897 inet_ntoa(zvni
->local_vtep_ip
));
1898 json_object_string_add(json
, "mcastGroup",
1899 inet_ntoa(zvni
->mcast_grp
));
1900 json_object_string_add(json
, "advertiseGatewayMacip",
1901 zvni
->advertise_gw_macip
? "Yes" : "No");
1902 json_object_int_add(json
, "numMacs", num_macs
);
1903 json_object_int_add(json
, "numArpNd", num_neigh
);
1907 vty_out(vty
, " No remote VTEPs known for this VNI\n");
1910 vty_out(vty
, " Remote VTEPs for this VNI:\n");
1912 json_vtep_list
= json_object_new_array();
1913 for (zvtep
= zvni
->vteps
; zvtep
; zvtep
= zvtep
->next
) {
1914 const char *flood_str
= lookup_msg(zvtep_flood_str
,
1915 zvtep
->flood_control
,
1916 VXLAN_FLOOD_STR_DEFAULT
);
1919 vty_out(vty
, " %s flood: %s\n",
1920 inet_ntoa(zvtep
->vtep_ip
),
1923 json_ip_str
= json_object_new_string(
1924 inet_ntoa(zvtep
->vtep_ip
));
1925 json_object_array_add(json_vtep_list
,
1930 json_object_object_add(json
, "numRemoteVteps",
1935 " Number of MACs (local and remote) known for this VNI: %u\n",
1938 " Number of ARPs (IPv4 and IPv6, local and remote) "
1939 "known for this VNI: %u\n",
1941 vty_out(vty
, " Advertise-gw-macip: %s\n",
1942 zvni
->advertise_gw_macip
? "Yes" : "No");
1946 /* print a L3 VNI hash entry */
1947 static void zl3vni_print_hash(struct hash_bucket
*bucket
, void *ctx
[])
1949 struct vty
*vty
= NULL
;
1950 json_object
*json
= NULL
;
1951 json_object
*json_vni
= NULL
;
1952 zebra_l3vni_t
*zl3vni
= NULL
;
1954 vty
= (struct vty
*)ctx
[0];
1955 json
= (json_object
*)ctx
[1];
1957 zl3vni
= (zebra_l3vni_t
*)bucket
->data
;
1960 vty_out(vty
, "%-10u %-4s %-21s %-8lu %-8lu %-15s %-37s\n",
1961 zl3vni
->vni
, "L3", zl3vni_vxlan_if_name(zl3vni
),
1962 hashcount(zl3vni
->rmac_table
),
1963 hashcount(zl3vni
->nh_table
), "n/a",
1964 zl3vni_vrf_name(zl3vni
));
1966 char vni_str
[VNI_STR_LEN
];
1968 snprintf(vni_str
, VNI_STR_LEN
, "%u", zl3vni
->vni
);
1969 json_vni
= json_object_new_object();
1970 json_object_int_add(json_vni
, "vni", zl3vni
->vni
);
1971 json_object_string_add(json_vni
, "vxlanIf",
1972 zl3vni_vxlan_if_name(zl3vni
));
1973 json_object_int_add(json_vni
, "numMacs",
1974 hashcount(zl3vni
->rmac_table
));
1975 json_object_int_add(json_vni
, "numArpNd",
1976 hashcount(zl3vni
->nh_table
));
1977 json_object_string_add(json_vni
, "numRemoteVteps", "n/a");
1978 json_object_string_add(json_vni
, "type", "L3");
1979 json_object_string_add(json_vni
, "tenantVrf",
1980 zl3vni_vrf_name(zl3vni
));
1981 json_object_object_add(json
, vni_str
, json_vni
);
1985 /* Private Structure to pass callback data for hash iterator */
1986 struct zvni_evpn_show
{
1989 struct zebra_vrf
*zvrf
;
1992 /* print a L3 VNI hash entry in detail*/
1993 static void zl3vni_print_hash_detail(struct hash_bucket
*bucket
, void *data
)
1995 struct vty
*vty
= NULL
;
1996 zebra_l3vni_t
*zl3vni
= NULL
;
1997 json_object
*json
= NULL
;
1998 bool use_json
= false;
1999 struct zvni_evpn_show
*zes
= data
;
2007 zl3vni
= (zebra_l3vni_t
*)bucket
->data
;
2009 zebra_vxlan_print_vni(vty
, zes
->zvrf
, zl3vni
->vni
, use_json
);
2015 * Print a VNI hash entry - called for display of all VNIs.
2017 static void zvni_print_hash(struct hash_bucket
*bucket
, void *ctxt
[])
2021 zebra_vtep_t
*zvtep
;
2022 uint32_t num_vteps
= 0;
2023 uint32_t num_macs
= 0;
2024 uint32_t num_neigh
= 0;
2025 json_object
*json
= NULL
;
2026 json_object
*json_vni
= NULL
;
2027 json_object
*json_ip_str
= NULL
;
2028 json_object
*json_vtep_list
= NULL
;
2033 zvni
= (zebra_vni_t
*)bucket
->data
;
2035 zvtep
= zvni
->vteps
;
2038 zvtep
= zvtep
->next
;
2041 num_macs
= num_valid_macs(zvni
);
2042 num_neigh
= hashcount(zvni
->neigh_table
);
2044 vty_out(vty
, "%-10u %-4s %-21s %-8u %-8u %-15u %-37s\n",
2046 zvni
->vxlan_if
? zvni
->vxlan_if
->name
: "unknown",
2047 num_macs
, num_neigh
, num_vteps
,
2048 vrf_id_to_name(zvni
->vrf_id
));
2050 char vni_str
[VNI_STR_LEN
];
2051 snprintf(vni_str
, VNI_STR_LEN
, "%u", zvni
->vni
);
2052 json_vni
= json_object_new_object();
2053 json_object_int_add(json_vni
, "vni", zvni
->vni
);
2054 json_object_string_add(json_vni
, "type", "L2");
2055 json_object_string_add(json_vni
, "vxlanIf",
2056 zvni
->vxlan_if
? zvni
->vxlan_if
->name
2058 json_object_int_add(json_vni
, "numMacs", num_macs
);
2059 json_object_int_add(json_vni
, "numArpNd", num_neigh
);
2060 json_object_int_add(json_vni
, "numRemoteVteps", num_vteps
);
2061 json_object_string_add(json_vni
, "tenantVrf",
2062 vrf_id_to_name(zvni
->vrf_id
));
2064 json_vtep_list
= json_object_new_array();
2065 for (zvtep
= zvni
->vteps
; zvtep
; zvtep
= zvtep
->next
) {
2066 json_ip_str
= json_object_new_string(
2067 inet_ntoa(zvtep
->vtep_ip
));
2068 json_object_array_add(json_vtep_list
,
2071 json_object_object_add(json_vni
, "remoteVteps",
2074 json_object_object_add(json
, vni_str
, json_vni
);
2079 * Print a VNI hash entry in detail - called for display of all VNIs.
2081 static void zvni_print_hash_detail(struct hash_bucket
*bucket
, void *data
)
2085 json_object
*json
= NULL
;
2086 bool use_json
= false;
2087 struct zvni_evpn_show
*zes
= data
;
2095 zvni
= (zebra_vni_t
*)bucket
->data
;
2097 zebra_vxlan_print_vni(vty
, zes
->zvrf
, zvni
->vni
, use_json
);
2102 * Inform BGP about local MACIP.
2104 static int zvni_macip_send_msg_to_client(vni_t vni
, struct ethaddr
*macaddr
,
2105 struct ipaddr
*ip
, uint8_t flags
,
2106 uint32_t seq
, int state
, uint16_t cmd
)
2108 char buf
[ETHER_ADDR_STRLEN
];
2109 char buf2
[INET6_ADDRSTRLEN
];
2111 struct zserv
*client
= NULL
;
2112 struct stream
*s
= NULL
;
2114 client
= zserv_find_client(ZEBRA_ROUTE_BGP
, 0);
2115 /* BGP may not be running. */
2119 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
2121 zclient_create_header(s
, cmd
, zebra_vrf_get_evpn_id());
2122 stream_putl(s
, vni
);
2123 stream_put(s
, macaddr
->octet
, ETH_ALEN
);
2126 if (IS_IPADDR_V4(ip
))
2127 ipa_len
= IPV4_MAX_BYTELEN
;
2128 else if (IS_IPADDR_V6(ip
))
2129 ipa_len
= IPV6_MAX_BYTELEN
;
2131 stream_putl(s
, ipa_len
); /* IP address length */
2133 stream_put(s
, &ip
->ip
.addr
, ipa_len
); /* IP address */
2135 stream_putl(s
, 0); /* Just MAC. */
2137 if (cmd
== ZEBRA_MACIP_ADD
) {
2138 stream_putc(s
, flags
); /* sticky mac/gateway mac */
2139 stream_putl(s
, seq
); /* sequence number */
2141 stream_putl(s
, state
); /* state - active/inactive */
2145 /* Write packet size. */
2146 stream_putw_at(s
, 0, stream_get_endp(s
));
2148 if (IS_ZEBRA_DEBUG_VXLAN
)
2150 "Send MACIP %s flags 0x%x MAC %s IP %s seq %u L2-VNI %u to %s",
2151 (cmd
== ZEBRA_MACIP_ADD
) ? "Add" : "Del", flags
,
2152 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
2153 ipaddr2str(ip
, buf2
, sizeof(buf2
)), seq
, vni
,
2154 zebra_route_string(client
->proto
));
2156 if (cmd
== ZEBRA_MACIP_ADD
)
2157 client
->macipadd_cnt
++;
2159 client
->macipdel_cnt
++;
2161 return zserv_send_message(client
, s
);
2165 * Make hash key for neighbors.
2167 static unsigned int neigh_hash_keymake(const void *p
)
2169 const zebra_neigh_t
*n
= p
;
2170 const struct ipaddr
*ip
= &n
->ip
;
2172 if (IS_IPADDR_V4(ip
))
2173 return jhash_1word(ip
->ipaddr_v4
.s_addr
, 0);
2175 return jhash2(ip
->ipaddr_v6
.s6_addr32
,
2176 array_size(ip
->ipaddr_v6
.s6_addr32
), 0);
2180 * Compare two neighbor hash structures.
2182 static bool neigh_cmp(const void *p1
, const void *p2
)
2184 const zebra_neigh_t
*n1
= p1
;
2185 const zebra_neigh_t
*n2
= p2
;
2187 if (n1
== NULL
&& n2
== NULL
)
2190 if (n1
== NULL
|| n2
== NULL
)
2193 return (memcmp(&n1
->ip
, &n2
->ip
, sizeof(struct ipaddr
)) == 0);
2196 static int neigh_list_cmp(void *p1
, void *p2
)
2198 const zebra_neigh_t
*n1
= p1
;
2199 const zebra_neigh_t
*n2
= p2
;
2201 return memcmp(&n1
->ip
, &n2
->ip
, sizeof(struct ipaddr
));
2205 * Callback to allocate neighbor hash entry.
2207 static void *zvni_neigh_alloc(void *p
)
2209 const zebra_neigh_t
*tmp_n
= p
;
2212 n
= XCALLOC(MTYPE_NEIGH
, sizeof(zebra_neigh_t
));
2219 * Add neighbor entry.
2221 static zebra_neigh_t
*zvni_neigh_add(zebra_vni_t
*zvni
, struct ipaddr
*ip
,
2222 struct ethaddr
*mac
)
2224 zebra_neigh_t tmp_n
;
2225 zebra_neigh_t
*n
= NULL
;
2226 zebra_mac_t
*zmac
= NULL
;
2228 memset(&tmp_n
, 0, sizeof(zebra_neigh_t
));
2229 memcpy(&tmp_n
.ip
, ip
, sizeof(struct ipaddr
));
2230 n
= hash_get(zvni
->neigh_table
, &tmp_n
, zvni_neigh_alloc
);
2233 memcpy(&n
->emac
, mac
, ETH_ALEN
);
2234 n
->state
= ZEBRA_NEIGH_INACTIVE
;
2236 n
->dad_ip_auto_recovery_timer
= NULL
;
2238 /* Associate the neigh to mac */
2239 zmac
= zvni_mac_lookup(zvni
, mac
);
2241 listnode_add_sort(zmac
->neigh_list
, n
);
2247 * Delete neighbor entry.
2249 static int zvni_neigh_del(zebra_vni_t
*zvni
, zebra_neigh_t
*n
)
2251 zebra_neigh_t
*tmp_n
;
2252 zebra_mac_t
*zmac
= NULL
;
2254 zmac
= zvni_mac_lookup(zvni
, &n
->emac
);
2256 listnode_delete(zmac
->neigh_list
, n
);
2258 /* Cancel auto recovery */
2259 THREAD_OFF(n
->dad_ip_auto_recovery_timer
);
2261 /* Free the VNI hash entry and allocated memory. */
2262 tmp_n
= hash_release(zvni
->neigh_table
, n
);
2263 XFREE(MTYPE_NEIGH
, tmp_n
);
2269 * Free neighbor hash entry (callback)
2271 static void zvni_neigh_del_hash_entry(struct hash_bucket
*bucket
, void *arg
)
2273 struct neigh_walk_ctx
*wctx
= arg
;
2274 zebra_neigh_t
*n
= bucket
->data
;
2276 if (((wctx
->flags
& DEL_LOCAL_NEIGH
) && (n
->flags
& ZEBRA_NEIGH_LOCAL
))
2277 || ((wctx
->flags
& DEL_REMOTE_NEIGH
)
2278 && (n
->flags
& ZEBRA_NEIGH_REMOTE
))
2279 || ((wctx
->flags
& DEL_REMOTE_NEIGH_FROM_VTEP
)
2280 && (n
->flags
& ZEBRA_NEIGH_REMOTE
)
2281 && IPV4_ADDR_SAME(&n
->r_vtep_ip
, &wctx
->r_vtep_ip
))) {
2282 if (wctx
->upd_client
&& (n
->flags
& ZEBRA_NEIGH_LOCAL
))
2283 zvni_neigh_send_del_to_client(wctx
->zvni
->vni
, &n
->ip
,
2284 &n
->emac
, 0, n
->state
);
2286 if (wctx
->uninstall
)
2287 zvni_neigh_uninstall(wctx
->zvni
, n
);
2289 zvni_neigh_del(wctx
->zvni
, n
);
2296 * Delete all neighbor entries from specific VTEP for a particular VNI.
2298 static void zvni_neigh_del_from_vtep(zebra_vni_t
*zvni
, int uninstall
,
2299 struct in_addr
*r_vtep_ip
)
2301 struct neigh_walk_ctx wctx
;
2303 if (!zvni
->neigh_table
)
2306 memset(&wctx
, 0, sizeof(struct neigh_walk_ctx
));
2308 wctx
.uninstall
= uninstall
;
2309 wctx
.flags
= DEL_REMOTE_NEIGH_FROM_VTEP
;
2310 wctx
.r_vtep_ip
= *r_vtep_ip
;
2312 hash_iterate(zvni
->neigh_table
, zvni_neigh_del_hash_entry
, &wctx
);
2316 * Delete all neighbor entries for this VNI.
2318 static void zvni_neigh_del_all(zebra_vni_t
*zvni
, int uninstall
, int upd_client
,
2321 struct neigh_walk_ctx wctx
;
2323 if (!zvni
->neigh_table
)
2326 memset(&wctx
, 0, sizeof(struct neigh_walk_ctx
));
2328 wctx
.uninstall
= uninstall
;
2329 wctx
.upd_client
= upd_client
;
2332 hash_iterate(zvni
->neigh_table
, zvni_neigh_del_hash_entry
, &wctx
);
2336 * Look up neighbor hash entry.
2338 static zebra_neigh_t
*zvni_neigh_lookup(zebra_vni_t
*zvni
, struct ipaddr
*ip
)
2343 memset(&tmp
, 0, sizeof(tmp
));
2344 memcpy(&tmp
.ip
, ip
, sizeof(struct ipaddr
));
2345 n
= hash_lookup(zvni
->neigh_table
, &tmp
);
2351 * Process all neighbors associated with a MAC upon the MAC being learnt
2352 * locally or undergoing any other change (such as sequence number).
2354 static void zvni_process_neigh_on_local_mac_change(zebra_vni_t
*zvni
,
2358 zebra_neigh_t
*n
= NULL
;
2359 struct listnode
*node
= NULL
;
2360 struct zebra_vrf
*zvrf
= NULL
;
2361 char buf
[ETHER_ADDR_STRLEN
];
2363 zvrf
= vrf_info_lookup(zvni
->vxlan_if
->vrf_id
);
2365 if (IS_ZEBRA_DEBUG_VXLAN
)
2366 zlog_debug("Processing neighbors on local MAC %s %s, VNI %u",
2367 prefix_mac2str(&zmac
->macaddr
, buf
, sizeof(buf
)),
2368 seq_change
? "CHANGE" : "ADD", zvni
->vni
);
2370 /* Walk all neighbors and mark any inactive local neighbors as
2371 * active and/or update sequence number upon a move, and inform BGP.
2372 * The action for remote neighbors is TBD.
2373 * NOTE: We can't simply uninstall remote neighbors as the kernel may
2374 * accidentally end up deleting a just-learnt local neighbor.
2376 for (ALL_LIST_ELEMENTS_RO(zmac
->neigh_list
, node
, n
)) {
2377 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
)) {
2378 if (IS_ZEBRA_NEIGH_INACTIVE(n
) || seq_change
) {
2379 ZEBRA_NEIGH_SET_ACTIVE(n
);
2380 n
->loc_seq
= zmac
->loc_seq
;
2381 if (!(zvrf
->dup_addr_detect
&&
2382 zvrf
->dad_freeze
&& !!CHECK_FLAG(n
->flags
,
2383 ZEBRA_NEIGH_DUPLICATE
)))
2384 zvni_neigh_send_add_to_client(
2385 zvni
->vni
, &n
->ip
, &n
->emac
,
2386 n
->flags
, n
->loc_seq
);
2393 * Process all neighbors associated with a local MAC upon the MAC being
2396 static void zvni_process_neigh_on_local_mac_del(zebra_vni_t
*zvni
,
2399 zebra_neigh_t
*n
= NULL
;
2400 struct listnode
*node
= NULL
;
2401 char buf
[ETHER_ADDR_STRLEN
];
2403 if (IS_ZEBRA_DEBUG_VXLAN
)
2404 zlog_debug("Processing neighbors on local MAC %s DEL, VNI %u",
2405 prefix_mac2str(&zmac
->macaddr
, buf
, sizeof(buf
)),
2408 /* Walk all local neighbors and mark as inactive and inform
2410 * TBD: There is currently no handling for remote neighbors. We
2411 * don't expect them to exist, if they do, do we install the MAC
2412 * as a remote MAC and the neighbor as remote?
2414 for (ALL_LIST_ELEMENTS_RO(zmac
->neigh_list
, node
, n
)) {
2415 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
)) {
2416 if (IS_ZEBRA_NEIGH_ACTIVE(n
)) {
2417 ZEBRA_NEIGH_SET_INACTIVE(n
);
2419 zvni_neigh_send_del_to_client(zvni
->vni
, &n
->ip
,
2420 &n
->emac
, 0, ZEBRA_NEIGH_ACTIVE
);
2427 * Process all neighbors associated with a MAC upon the MAC being remotely
2430 static void zvni_process_neigh_on_remote_mac_add(zebra_vni_t
*zvni
,
2433 zebra_neigh_t
*n
= NULL
;
2434 struct listnode
*node
= NULL
;
2435 char buf
[ETHER_ADDR_STRLEN
];
2437 if (IS_ZEBRA_DEBUG_VXLAN
)
2438 zlog_debug("Processing neighbors on remote MAC %s ADD, VNI %u",
2439 prefix_mac2str(&zmac
->macaddr
, buf
, sizeof(buf
)),
2442 /* Walk all local neighbors and mark as inactive and inform
2445 for (ALL_LIST_ELEMENTS_RO(zmac
->neigh_list
, node
, n
)) {
2446 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
)) {
2447 if (IS_ZEBRA_NEIGH_ACTIVE(n
)) {
2448 ZEBRA_NEIGH_SET_INACTIVE(n
);
2450 zvni_neigh_send_del_to_client(zvni
->vni
, &n
->ip
,
2451 &n
->emac
, 0, ZEBRA_NEIGH_ACTIVE
);
2458 * Process all neighbors associated with a remote MAC upon the MAC being
2461 static void zvni_process_neigh_on_remote_mac_del(zebra_vni_t
*zvni
,
2464 /* NOTE: Currently a NO-OP. */
2467 static void zvni_probe_neigh_on_mac_add(zebra_vni_t
*zvni
, zebra_mac_t
*zmac
)
2469 zebra_neigh_t
*nbr
= NULL
;
2470 struct listnode
*node
= NULL
;
2472 for (ALL_LIST_ELEMENTS_RO(zmac
->neigh_list
, node
, nbr
)) {
2473 if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_LOCAL
) &&
2474 IS_ZEBRA_NEIGH_INACTIVE(nbr
))
2475 zvni_neigh_probe(zvni
, nbr
);
2480 * Inform BGP about local neighbor addition.
2482 static int zvni_neigh_send_add_to_client(vni_t vni
, struct ipaddr
*ip
,
2483 struct ethaddr
*macaddr
,
2484 uint8_t neigh_flags
,
2489 if (CHECK_FLAG(neigh_flags
, ZEBRA_NEIGH_DEF_GW
))
2490 SET_FLAG(flags
, ZEBRA_MACIP_TYPE_GW
);
2491 /* Set router flag (R-bit) based on local neigh entry add */
2492 if (CHECK_FLAG(neigh_flags
, ZEBRA_NEIGH_ROUTER_FLAG
))
2493 SET_FLAG(flags
, ZEBRA_MACIP_TYPE_ROUTER_FLAG
);
2495 return zvni_macip_send_msg_to_client(vni
, macaddr
, ip
, flags
,
2496 seq
, ZEBRA_NEIGH_ACTIVE
, ZEBRA_MACIP_ADD
);
2500 * Inform BGP about local neighbor deletion.
2502 static int zvni_neigh_send_del_to_client(vni_t vni
, struct ipaddr
*ip
,
2503 struct ethaddr
*macaddr
, uint8_t flags
,
2506 return zvni_macip_send_msg_to_client(vni
, macaddr
, ip
, flags
,
2507 0, state
, ZEBRA_MACIP_DEL
);
2511 * Install remote neighbor into the kernel.
2513 static int zvni_neigh_install(zebra_vni_t
*zvni
, zebra_neigh_t
*n
)
2515 struct zebra_if
*zif
;
2516 struct zebra_l2info_vxlan
*vxl
;
2517 struct interface
*vlan_if
;
2523 if (!(n
->flags
& ZEBRA_NEIGH_REMOTE
))
2526 zif
= zvni
->vxlan_if
->info
;
2529 vxl
= &zif
->l2info
.vxl
;
2531 vlan_if
= zvni_map_to_svi(vxl
->access_vlan
, zif
->brslave_info
.br_if
);
2535 flags
= NTF_EXT_LEARNED
;
2536 if (n
->flags
& ZEBRA_NEIGH_ROUTER_FLAG
)
2537 flags
|= NTF_ROUTER
;
2538 ZEBRA_NEIGH_SET_ACTIVE(n
);
2539 ret
= kernel_add_neigh(vlan_if
, &n
->ip
, &n
->emac
, flags
);
2545 * Uninstall remote neighbor from the kernel.
2547 static int zvni_neigh_uninstall(zebra_vni_t
*zvni
, zebra_neigh_t
*n
)
2549 struct zebra_if
*zif
;
2550 struct zebra_l2info_vxlan
*vxl
;
2551 struct interface
*vlan_if
;
2553 if (!(n
->flags
& ZEBRA_NEIGH_REMOTE
))
2556 if (!zvni
->vxlan_if
) {
2557 zlog_debug("VNI %u hash %p couldn't be uninstalled - no intf",
2562 zif
= zvni
->vxlan_if
->info
;
2565 vxl
= &zif
->l2info
.vxl
;
2566 vlan_if
= zvni_map_to_svi(vxl
->access_vlan
, zif
->brslave_info
.br_if
);
2570 ZEBRA_NEIGH_SET_INACTIVE(n
);
2572 return kernel_del_neigh(vlan_if
, &n
->ip
);
2576 * Probe neighbor from the kernel.
2578 static int zvni_neigh_probe(zebra_vni_t
*zvni
, zebra_neigh_t
*n
)
2580 struct zebra_if
*zif
;
2581 struct zebra_l2info_vxlan
*vxl
;
2582 struct interface
*vlan_if
;
2584 zif
= zvni
->vxlan_if
->info
;
2587 vxl
= &zif
->l2info
.vxl
;
2589 vlan_if
= zvni_map_to_svi(vxl
->access_vlan
, zif
->brslave_info
.br_if
);
2594 return kernel_upd_neigh(vlan_if
, &n
->ip
, &n
->emac
,
2602 * Install neighbor hash entry - called upon access VLAN change.
2604 static void zvni_install_neigh_hash(struct hash_bucket
*bucket
, void *ctxt
)
2607 struct neigh_walk_ctx
*wctx
= ctxt
;
2609 n
= (zebra_neigh_t
*)bucket
->data
;
2611 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
))
2612 zvni_neigh_install(wctx
->zvni
, n
);
2615 /* Get the VRR interface for SVI if any */
2616 struct interface
*zebra_get_vrr_intf_for_svi(struct interface
*ifp
)
2618 struct zebra_vrf
*zvrf
= NULL
;
2619 struct interface
*tmp_if
= NULL
;
2620 struct zebra_if
*zif
= NULL
;
2622 zvrf
= vrf_info_lookup(ifp
->vrf_id
);
2625 FOR_ALL_INTERFACES (zvrf
->vrf
, tmp_if
) {
2630 if (!IS_ZEBRA_IF_MACVLAN(tmp_if
))
2633 if (zif
->link
== ifp
)
2640 static int zvni_del_macip_for_intf(struct interface
*ifp
, zebra_vni_t
*zvni
)
2642 struct listnode
*cnode
= NULL
, *cnnode
= NULL
;
2643 struct connected
*c
= NULL
;
2644 struct ethaddr macaddr
;
2646 memcpy(&macaddr
.octet
, ifp
->hw_addr
, ETH_ALEN
);
2648 for (ALL_LIST_ELEMENTS(ifp
->connected
, cnode
, cnnode
, c
)) {
2651 memset(&ip
, 0, sizeof(struct ipaddr
));
2652 if (!CHECK_FLAG(c
->conf
, ZEBRA_IFC_REAL
))
2655 if (c
->address
->family
== AF_INET
) {
2656 ip
.ipa_type
= IPADDR_V4
;
2657 memcpy(&(ip
.ipaddr_v4
), &(c
->address
->u
.prefix4
),
2658 sizeof(struct in_addr
));
2659 } else if (c
->address
->family
== AF_INET6
) {
2660 ip
.ipa_type
= IPADDR_V6
;
2661 memcpy(&(ip
.ipaddr_v6
), &(c
->address
->u
.prefix6
),
2662 sizeof(struct in6_addr
));
2667 zvni_gw_macip_del(ifp
, zvni
, &ip
);
2673 static int zvni_add_macip_for_intf(struct interface
*ifp
, zebra_vni_t
*zvni
)
2675 struct listnode
*cnode
= NULL
, *cnnode
= NULL
;
2676 struct connected
*c
= NULL
;
2677 struct ethaddr macaddr
;
2679 memcpy(&macaddr
.octet
, ifp
->hw_addr
, ETH_ALEN
);
2681 for (ALL_LIST_ELEMENTS(ifp
->connected
, cnode
, cnnode
, c
)) {
2684 memset(&ip
, 0, sizeof(struct ipaddr
));
2685 if (!CHECK_FLAG(c
->conf
, ZEBRA_IFC_REAL
))
2688 if (c
->address
->family
== AF_INET
) {
2689 ip
.ipa_type
= IPADDR_V4
;
2690 memcpy(&(ip
.ipaddr_v4
), &(c
->address
->u
.prefix4
),
2691 sizeof(struct in_addr
));
2692 } else if (c
->address
->family
== AF_INET6
) {
2693 ip
.ipa_type
= IPADDR_V6
;
2694 memcpy(&(ip
.ipaddr_v6
), &(c
->address
->u
.prefix6
),
2695 sizeof(struct in6_addr
));
2700 zvni_gw_macip_add(ifp
, zvni
, &macaddr
, &ip
);
2706 static int zvni_advertise_subnet(zebra_vni_t
*zvni
, struct interface
*ifp
,
2709 struct listnode
*cnode
= NULL
, *cnnode
= NULL
;
2710 struct connected
*c
= NULL
;
2711 struct ethaddr macaddr
;
2713 memcpy(&macaddr
.octet
, ifp
->hw_addr
, ETH_ALEN
);
2715 for (ALL_LIST_ELEMENTS(ifp
->connected
, cnode
, cnnode
, c
)) {
2718 memcpy(&p
, c
->address
, sizeof(struct prefix
));
2720 /* skip link local address */
2721 if (IN6_IS_ADDR_LINKLOCAL(&p
.u
.prefix6
))
2726 ip_prefix_send_to_client(ifp
->vrf_id
, &p
,
2727 ZEBRA_IP_PREFIX_ROUTE_ADD
);
2729 ip_prefix_send_to_client(ifp
->vrf_id
, &p
,
2730 ZEBRA_IP_PREFIX_ROUTE_DEL
);
2736 * zvni_gw_macip_add_to_client
2738 static int zvni_gw_macip_add(struct interface
*ifp
, zebra_vni_t
*zvni
,
2739 struct ethaddr
*macaddr
, struct ipaddr
*ip
)
2741 char buf
[ETHER_ADDR_STRLEN
];
2742 char buf2
[INET6_ADDRSTRLEN
];
2743 zebra_neigh_t
*n
= NULL
;
2744 zebra_mac_t
*mac
= NULL
;
2745 struct zebra_if
*zif
= NULL
;
2746 struct zebra_l2info_vxlan
*vxl
= NULL
;
2748 zif
= zvni
->vxlan_if
->info
;
2752 vxl
= &zif
->l2info
.vxl
;
2754 mac
= zvni_mac_lookup(zvni
, macaddr
);
2756 mac
= zvni_mac_add(zvni
, macaddr
);
2758 flog_err(EC_ZEBRA_MAC_ADD_FAILED
,
2759 "Failed to add MAC %s intf %s(%u) VID %u",
2760 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
2761 ifp
->name
, ifp
->ifindex
, vxl
->access_vlan
);
2766 /* Set "local" forwarding info. */
2767 SET_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
);
2768 SET_FLAG(mac
->flags
, ZEBRA_MAC_AUTO
);
2769 SET_FLAG(mac
->flags
, ZEBRA_MAC_DEF_GW
);
2770 memset(&mac
->fwd_info
, 0, sizeof(mac
->fwd_info
));
2771 mac
->fwd_info
.local
.ifindex
= ifp
->ifindex
;
2772 mac
->fwd_info
.local
.vid
= vxl
->access_vlan
;
2774 n
= zvni_neigh_lookup(zvni
, ip
);
2776 n
= zvni_neigh_add(zvni
, ip
, macaddr
);
2779 EC_ZEBRA_MAC_ADD_FAILED
,
2780 "Failed to add neighbor %s MAC %s intf %s(%u) -> VNI %u",
2781 ipaddr2str(ip
, buf2
, sizeof(buf2
)),
2782 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
2783 ifp
->name
, ifp
->ifindex
, zvni
->vni
);
2788 /* Set "local" forwarding info. */
2789 SET_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
);
2790 SET_FLAG(n
->flags
, ZEBRA_NEIGH_DEF_GW
);
2791 ZEBRA_NEIGH_SET_ACTIVE(n
);
2792 /* Set Router flag (R-bit) */
2793 if (ip
->ipa_type
== IPADDR_V6
)
2794 SET_FLAG(n
->flags
, ZEBRA_NEIGH_ROUTER_FLAG
);
2795 memcpy(&n
->emac
, macaddr
, ETH_ALEN
);
2796 n
->ifindex
= ifp
->ifindex
;
2798 /* Only advertise in BGP if the knob is enabled */
2799 if (!advertise_gw_macip_enabled(zvni
))
2802 if (IS_ZEBRA_DEBUG_VXLAN
)
2804 "SVI %s(%u) L2-VNI %u, sending GW MAC %s IP %s add to BGP with flags 0x%x",
2805 ifp
->name
, ifp
->ifindex
, zvni
->vni
,
2806 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
2807 ipaddr2str(ip
, buf2
, sizeof(buf2
)), n
->flags
);
2809 zvni_neigh_send_add_to_client(zvni
->vni
, ip
, macaddr
,
2810 n
->flags
, n
->loc_seq
);
2816 * zvni_gw_macip_del_from_client
2818 static int zvni_gw_macip_del(struct interface
*ifp
, zebra_vni_t
*zvni
,
2821 char buf1
[ETHER_ADDR_STRLEN
];
2822 char buf2
[INET6_ADDRSTRLEN
];
2823 zebra_neigh_t
*n
= NULL
;
2824 zebra_mac_t
*mac
= NULL
;
2826 /* If the neigh entry is not present nothing to do*/
2827 n
= zvni_neigh_lookup(zvni
, ip
);
2831 /* mac entry should be present */
2832 mac
= zvni_mac_lookup(zvni
, &n
->emac
);
2834 zlog_debug("MAC %s doesn't exist for neigh %s on VNI %u",
2835 prefix_mac2str(&n
->emac
, buf1
, sizeof(buf1
)),
2836 ipaddr2str(ip
, buf2
, sizeof(buf2
)), zvni
->vni
);
2840 /* If the entry is not local nothing to do*/
2841 if (!CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
))
2844 /* only need to delete the entry from bgp if we sent it before */
2845 if (IS_ZEBRA_DEBUG_VXLAN
)
2847 "%u:SVI %s(%u) VNI %u, sending GW MAC %s IP %s del to BGP",
2848 ifp
->vrf_id
, ifp
->name
, ifp
->ifindex
, zvni
->vni
,
2849 prefix_mac2str(&(n
->emac
), buf1
, sizeof(buf1
)),
2850 ipaddr2str(ip
, buf2
, sizeof(buf2
)));
2852 /* Remove neighbor from BGP. */
2853 zvni_neigh_send_del_to_client(zvni
->vni
, &n
->ip
, &n
->emac
,
2854 ZEBRA_MACIP_TYPE_GW
, ZEBRA_NEIGH_ACTIVE
);
2856 /* Delete this neighbor entry. */
2857 zvni_neigh_del(zvni
, n
);
2859 /* see if the mac needs to be deleted as well*/
2861 zvni_deref_ip2mac(zvni
, mac
);
2866 static void zvni_gw_macip_del_for_vni_hash(struct hash_bucket
*bucket
,
2869 zebra_vni_t
*zvni
= NULL
;
2870 struct zebra_if
*zif
= NULL
;
2871 struct zebra_l2info_vxlan zl2_info
;
2872 struct interface
*vlan_if
= NULL
;
2873 struct interface
*vrr_if
= NULL
;
2874 struct interface
*ifp
;
2876 /* Add primary SVI MAC*/
2877 zvni
= (zebra_vni_t
*)bucket
->data
;
2879 /* Global (Zvrf) advertise-default-gw is disabled,
2880 * but zvni advertise-default-gw is enabled
2882 if (zvni
->advertise_gw_macip
) {
2883 if (IS_ZEBRA_DEBUG_VXLAN
)
2884 zlog_debug("VNI: %u GW-MACIP enabled, retain gw-macip",
2889 ifp
= zvni
->vxlan_if
;
2894 /* If down or not mapped to a bridge, we're done. */
2895 if (!if_is_operative(ifp
) || !zif
->brslave_info
.br_if
)
2898 zl2_info
= zif
->l2info
.vxl
;
2901 zvni_map_to_svi(zl2_info
.access_vlan
, zif
->brslave_info
.br_if
);
2905 /* Del primary MAC-IP */
2906 zvni_del_macip_for_intf(vlan_if
, zvni
);
2908 /* Del VRR MAC-IP - if any*/
2909 vrr_if
= zebra_get_vrr_intf_for_svi(vlan_if
);
2911 zvni_del_macip_for_intf(vrr_if
, zvni
);
2916 static void zvni_gw_macip_add_for_vni_hash(struct hash_bucket
*bucket
,
2919 zebra_vni_t
*zvni
= NULL
;
2920 struct zebra_if
*zif
= NULL
;
2921 struct zebra_l2info_vxlan zl2_info
;
2922 struct interface
*vlan_if
= NULL
;
2923 struct interface
*vrr_if
= NULL
;
2924 struct interface
*ifp
= NULL
;
2926 zvni
= (zebra_vni_t
*)bucket
->data
;
2928 ifp
= zvni
->vxlan_if
;
2933 /* If down or not mapped to a bridge, we're done. */
2934 if (!if_is_operative(ifp
) || !zif
->brslave_info
.br_if
)
2936 zl2_info
= zif
->l2info
.vxl
;
2939 zvni_map_to_svi(zl2_info
.access_vlan
, zif
->brslave_info
.br_if
);
2943 /* Add primary SVI MAC-IP */
2944 zvni_add_macip_for_intf(vlan_if
, zvni
);
2946 if (advertise_gw_macip_enabled(zvni
)) {
2947 /* Add VRR MAC-IP - if any*/
2948 vrr_if
= zebra_get_vrr_intf_for_svi(vlan_if
);
2950 zvni_add_macip_for_intf(vrr_if
, zvni
);
2956 static void zvni_svi_macip_del_for_vni_hash(struct hash_bucket
*bucket
,
2959 zebra_vni_t
*zvni
= NULL
;
2960 struct zebra_if
*zif
= NULL
;
2961 struct zebra_l2info_vxlan zl2_info
;
2962 struct interface
*vlan_if
= NULL
;
2963 struct interface
*ifp
;
2965 /* Add primary SVI MAC*/
2966 zvni
= (zebra_vni_t
*)bucket
->data
;
2970 /* Global(vrf) advertise-svi-ip disabled, but zvni advertise-svi-ip
2973 if (zvni
->advertise_svi_macip
) {
2974 if (IS_ZEBRA_DEBUG_VXLAN
)
2975 zlog_debug("VNI: %u SVI-MACIP enabled, retain svi-macip",
2980 ifp
= zvni
->vxlan_if
;
2985 /* If down or not mapped to a bridge, we're done. */
2986 if (!if_is_operative(ifp
) || !zif
->brslave_info
.br_if
)
2989 zl2_info
= zif
->l2info
.vxl
;
2991 vlan_if
= zvni_map_to_svi(zl2_info
.access_vlan
,
2992 zif
->brslave_info
.br_if
);
2996 /* Del primary MAC-IP */
2997 zvni_del_macip_for_intf(vlan_if
, zvni
);
3002 static int zvni_local_neigh_update(zebra_vni_t
*zvni
,
3003 struct interface
*ifp
,
3005 struct ethaddr
*macaddr
,
3008 char buf
[ETHER_ADDR_STRLEN
];
3009 char buf2
[INET6_ADDRSTRLEN
];
3010 struct zebra_vrf
*zvrf
;
3011 zebra_neigh_t
*n
= NULL
;
3012 zebra_mac_t
*zmac
= NULL
, *old_zmac
= NULL
;
3013 uint32_t old_mac_seq
= 0, mac_new_seq
= 0;
3014 bool upd_mac_seq
= false;
3015 bool neigh_mac_change
= false;
3016 bool neigh_on_hold
= false;
3017 bool neigh_was_remote
= false;
3018 bool do_dad
= false;
3019 struct in_addr vtep_ip
= {.s_addr
= 0};
3021 /* Check if the MAC exists. */
3022 zmac
= zvni_mac_lookup(zvni
, macaddr
);
3024 /* create a dummy MAC if the MAC is not already present */
3025 if (IS_ZEBRA_DEBUG_VXLAN
)
3027 "AUTO MAC %s created for neigh %s on VNI %u",
3028 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
3029 ipaddr2str(ip
, buf2
, sizeof(buf2
)), zvni
->vni
);
3031 zmac
= zvni_mac_add(zvni
, macaddr
);
3033 zlog_debug("Failed to add MAC %s VNI %u",
3034 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
3039 memset(&zmac
->fwd_info
, 0, sizeof(zmac
->fwd_info
));
3040 memset(&zmac
->flags
, 0, sizeof(uint32_t));
3041 SET_FLAG(zmac
->flags
, ZEBRA_MAC_AUTO
);
3043 if (CHECK_FLAG(zmac
->flags
, ZEBRA_MAC_REMOTE
)) {
3045 * We don't change the MAC to local upon a neighbor
3046 * learn event, we wait for the explicit local MAC
3047 * learn. However, we have to compute its sequence
3048 * number in preparation for when it actually turns
3055 zvrf
= vrf_info_lookup(zvni
->vxlan_if
->vrf_id
);
3057 if (IS_ZEBRA_DEBUG_VXLAN
)
3058 zlog_debug("\tUnable to find vrf for: %d",
3059 zvni
->vxlan_if
->vrf_id
);
3063 /* Check if the neighbor exists. */
3064 n
= zvni_neigh_lookup(zvni
, ip
);
3066 /* New neighbor - create */
3067 n
= zvni_neigh_add(zvni
, ip
, macaddr
);
3070 EC_ZEBRA_MAC_ADD_FAILED
,
3071 "Failed to add neighbor %s MAC %s intf %s(%u) -> VNI %u",
3072 ipaddr2str(ip
, buf2
, sizeof(buf2
)),
3073 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
3074 ifp
->name
, ifp
->ifindex
, zvni
->vni
);
3077 /* Set "local" forwarding info. */
3078 SET_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
);
3079 n
->ifindex
= ifp
->ifindex
;
3081 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
)) {
3085 /* Note any changes and see if of interest to BGP. */
3086 mac_different
= (memcmp(n
->emac
.octet
,
3087 macaddr
->octet
, ETH_ALEN
) != 0) ? 1 : 0;
3088 cur_is_router
= !!CHECK_FLAG(n
->flags
,
3089 ZEBRA_NEIGH_ROUTER_FLAG
);
3090 if (!mac_different
&& is_router
== cur_is_router
) {
3091 if (IS_ZEBRA_DEBUG_VXLAN
)
3093 "\tIgnoring entry mac is the same and is_router == cur_is_router");
3094 n
->ifindex
= ifp
->ifindex
;
3098 if (!mac_different
) {
3099 bool is_neigh_freezed
= false;
3101 /* Only the router flag has changed. */
3104 ZEBRA_NEIGH_ROUTER_FLAG
);
3106 UNSET_FLAG(n
->flags
,
3107 ZEBRA_NEIGH_ROUTER_FLAG
);
3109 /* Neigh is in freeze state and freeze action
3110 * is enabled, do not send update to client.
3112 is_neigh_freezed
= (zvrf
->dup_addr_detect
&&
3114 CHECK_FLAG(n
->flags
,
3115 ZEBRA_NEIGH_DUPLICATE
));
3117 if (IS_ZEBRA_NEIGH_ACTIVE(n
) &&
3119 return zvni_neigh_send_add_to_client(
3120 zvni
->vni
, ip
, macaddr
,
3121 n
->flags
, n
->loc_seq
);
3123 if (IS_ZEBRA_DEBUG_VXLAN
)
3125 "\tNeighbor active and frozen");
3130 /* The MAC has changed, need to issue a delete
3131 * first as this means a different MACIP route.
3132 * Also, need to do some unlinking/relinking.
3133 * We also need to update the MAC's sequence number
3134 * in different situations.
3136 if (IS_ZEBRA_NEIGH_ACTIVE(n
))
3137 zvni_neigh_send_del_to_client(zvni
->vni
, &n
->ip
,
3138 &n
->emac
, 0, n
->state
);
3139 old_zmac
= zvni_mac_lookup(zvni
, &n
->emac
);
3141 old_mac_seq
= CHECK_FLAG(old_zmac
->flags
,
3143 old_zmac
->rem_seq
: old_zmac
->loc_seq
;
3144 neigh_mac_change
= upd_mac_seq
= true;
3145 listnode_delete(old_zmac
->neigh_list
, n
);
3146 zvni_deref_ip2mac(zvni
, old_zmac
);
3149 /* Update the forwarding info. */
3150 n
->ifindex
= ifp
->ifindex
;
3151 memcpy(&n
->emac
, macaddr
, ETH_ALEN
);
3153 /* Link to new MAC */
3154 listnode_add_sort(zmac
->neigh_list
, n
);
3155 } else if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
)) {
3157 * Neighbor has moved from remote to local. Its
3158 * MAC could have also changed as part of the move.
3160 if (memcmp(n
->emac
.octet
, macaddr
->octet
,
3162 old_zmac
= zvni_mac_lookup(zvni
, &n
->emac
);
3164 old_mac_seq
= CHECK_FLAG(
3169 neigh_mac_change
= upd_mac_seq
= true;
3170 listnode_delete(old_zmac
->neigh_list
,
3172 zvni_deref_ip2mac(zvni
, old_zmac
);
3175 /* Link to new MAC */
3176 memcpy(&n
->emac
, macaddr
, ETH_ALEN
);
3177 listnode_add_sort(zmac
->neigh_list
, n
);
3179 /* Based on Mobility event Scenario-B from the
3180 * draft, neigh's previous state was remote treat this
3183 neigh_was_remote
= true;
3184 vtep_ip
= n
->r_vtep_ip
;
3185 /* Mark appropriately */
3186 UNSET_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
);
3187 n
->r_vtep_ip
.s_addr
= 0;
3188 SET_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
);
3189 n
->ifindex
= ifp
->ifindex
;
3193 /* If MAC was previously remote, or the neighbor had a different
3194 * MAC earlier, recompute the sequence number.
3197 uint32_t seq1
, seq2
;
3199 seq1
= CHECK_FLAG(zmac
->flags
, ZEBRA_MAC_REMOTE
) ?
3200 zmac
->rem_seq
+ 1 : zmac
->loc_seq
;
3201 seq2
= neigh_mac_change
? old_mac_seq
+ 1 : 0;
3202 mac_new_seq
= zmac
->loc_seq
< MAX(seq1
, seq2
) ?
3203 MAX(seq1
, seq2
) : zmac
->loc_seq
;
3206 /* Mark Router flag (R-bit) */
3208 SET_FLAG(n
->flags
, ZEBRA_NEIGH_ROUTER_FLAG
);
3210 UNSET_FLAG(n
->flags
, ZEBRA_NEIGH_ROUTER_FLAG
);
3212 /* Check old and/or new MAC detected as duplicate mark
3213 * the neigh as duplicate
3215 if (zebra_vxlan_ip_inherit_dad_from_mac(zvrf
, old_zmac
, zmac
, n
)) {
3216 flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED
,
3217 "VNI %u: MAC %s IP %s detected as duplicate during local update, inherit duplicate from MAC",
3219 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
3220 ipaddr2str(&n
->ip
, buf2
, sizeof(buf2
)));
3223 /* For IP Duplicate Address Detection (DAD) is trigger,
3224 * when the event is extended mobility based on scenario-B
3225 * from the draft, IP/Neigh's MAC binding changed and
3226 * neigh's previous state was remote.
3228 if (neigh_mac_change
&& neigh_was_remote
)
3231 zebra_vxlan_dup_addr_detect_for_neigh(zvrf
, n
, vtep_ip
, do_dad
,
3232 &neigh_on_hold
, true);
3234 /* Before we program this in BGP, we need to check if MAC is locally
3235 * learnt. If not, force neighbor to be inactive and reset its seq.
3237 if (!CHECK_FLAG(zmac
->flags
, ZEBRA_MAC_LOCAL
)) {
3238 ZEBRA_NEIGH_SET_INACTIVE(n
);
3240 zmac
->loc_seq
= mac_new_seq
;
3244 /* If the MAC's sequence number has changed, inform the MAC and all
3245 * neighbors associated with the MAC to BGP, else just inform this
3248 if (upd_mac_seq
&& zmac
->loc_seq
!= mac_new_seq
) {
3249 if (IS_ZEBRA_DEBUG_VXLAN
)
3250 zlog_debug("Seq changed for MAC %s VNI %u - old %u new %u",
3251 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
3252 zvni
->vni
, zmac
->loc_seq
, mac_new_seq
);
3253 zmac
->loc_seq
= mac_new_seq
;
3254 if (zvni_mac_send_add_to_client(zvni
->vni
, macaddr
,
3255 zmac
->flags
, zmac
->loc_seq
))
3257 zvni_process_neigh_on_local_mac_change(zvni
, zmac
, 1);
3261 n
->loc_seq
= zmac
->loc_seq
;
3263 if (!neigh_on_hold
) {
3264 ZEBRA_NEIGH_SET_ACTIVE(n
);
3266 return zvni_neigh_send_add_to_client(zvni
->vni
, ip
, macaddr
,
3267 n
->flags
, n
->loc_seq
);
3269 if (IS_ZEBRA_DEBUG_VXLAN
)
3270 zlog_debug("\tNeighbor on hold not sending");
3275 static int zvni_remote_neigh_update(zebra_vni_t
*zvni
,
3276 struct interface
*ifp
,
3278 struct ethaddr
*macaddr
,
3281 char buf
[ETHER_ADDR_STRLEN
];
3282 char buf2
[INET6_ADDRSTRLEN
];
3283 zebra_neigh_t
*n
= NULL
;
3284 zebra_mac_t
*zmac
= NULL
;
3286 /* If the neighbor is unknown, there is no further action. */
3287 n
= zvni_neigh_lookup(zvni
, ip
);
3291 /* If a remote entry, see if it needs to be refreshed */
3292 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
)) {
3294 if (state
& NUD_STALE
)
3295 zvni_neigh_install(zvni
, n
);
3298 /* We got a "remote" neighbor notification for an entry
3299 * we think is local. This can happen in a multihoming
3300 * scenario - but only if the MAC is already "remote".
3301 * Just mark our entry as "remote".
3303 zmac
= zvni_mac_lookup(zvni
, macaddr
);
3304 if (!zmac
|| !CHECK_FLAG(zmac
->flags
, ZEBRA_MAC_REMOTE
)) {
3306 "Ignore remote neigh %s (MAC %s) on L2-VNI %u - MAC unknown or local",
3307 ipaddr2str(&n
->ip
, buf2
, sizeof(buf2
)),
3308 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
3313 UNSET_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
);
3314 SET_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
);
3315 ZEBRA_NEIGH_SET_ACTIVE(n
);
3316 n
->r_vtep_ip
= zmac
->fwd_info
.r_vtep_ip
;
3323 * Make hash key for MAC.
3325 static unsigned int mac_hash_keymake(const void *p
)
3327 const zebra_mac_t
*pmac
= p
;
3328 const void *pnt
= (void *)pmac
->macaddr
.octet
;
3330 return jhash(pnt
, ETH_ALEN
, 0xa5a5a55a);
3334 * Compare two MAC addresses.
3336 static bool mac_cmp(const void *p1
, const void *p2
)
3338 const zebra_mac_t
*pmac1
= p1
;
3339 const zebra_mac_t
*pmac2
= p2
;
3341 if (pmac1
== NULL
&& pmac2
== NULL
)
3344 if (pmac1
== NULL
|| pmac2
== NULL
)
3347 return (memcmp(pmac1
->macaddr
.octet
, pmac2
->macaddr
.octet
, ETH_ALEN
)
3352 * Callback to allocate MAC hash entry.
3354 static void *zvni_mac_alloc(void *p
)
3356 const zebra_mac_t
*tmp_mac
= p
;
3359 mac
= XCALLOC(MTYPE_MAC
, sizeof(zebra_mac_t
));
3362 return ((void *)mac
);
3368 static zebra_mac_t
*zvni_mac_add(zebra_vni_t
*zvni
, struct ethaddr
*macaddr
)
3370 zebra_mac_t tmp_mac
;
3371 zebra_mac_t
*mac
= NULL
;
3373 memset(&tmp_mac
, 0, sizeof(zebra_mac_t
));
3374 memcpy(&tmp_mac
.macaddr
, macaddr
, ETH_ALEN
);
3375 mac
= hash_get(zvni
->mac_table
, &tmp_mac
, zvni_mac_alloc
);
3379 mac
->dad_mac_auto_recovery_timer
= NULL
;
3381 mac
->neigh_list
= list_new();
3382 mac
->neigh_list
->cmp
= neigh_list_cmp
;
3390 static int zvni_mac_del(zebra_vni_t
*zvni
, zebra_mac_t
*mac
)
3392 zebra_mac_t
*tmp_mac
;
3394 /* Cancel auto recovery */
3395 THREAD_OFF(mac
->dad_mac_auto_recovery_timer
);
3397 list_delete(&mac
->neigh_list
);
3399 /* Free the VNI hash entry and allocated memory. */
3400 tmp_mac
= hash_release(zvni
->mac_table
, mac
);
3401 XFREE(MTYPE_MAC
, tmp_mac
);
3407 * Free MAC hash entry (callback)
3409 static void zvni_mac_del_hash_entry(struct hash_bucket
*bucket
, void *arg
)
3411 struct mac_walk_ctx
*wctx
= arg
;
3412 zebra_mac_t
*mac
= bucket
->data
;
3414 if (((wctx
->flags
& DEL_LOCAL_MAC
) && (mac
->flags
& ZEBRA_MAC_LOCAL
))
3415 || ((wctx
->flags
& DEL_REMOTE_MAC
)
3416 && (mac
->flags
& ZEBRA_MAC_REMOTE
))
3417 || ((wctx
->flags
& DEL_REMOTE_MAC_FROM_VTEP
)
3418 && (mac
->flags
& ZEBRA_MAC_REMOTE
)
3419 && IPV4_ADDR_SAME(&mac
->fwd_info
.r_vtep_ip
,
3420 &wctx
->r_vtep_ip
))) {
3421 if (wctx
->upd_client
&& (mac
->flags
& ZEBRA_MAC_LOCAL
)) {
3422 zvni_mac_send_del_to_client(wctx
->zvni
->vni
,
3426 if (wctx
->uninstall
)
3427 zvni_mac_uninstall(wctx
->zvni
, mac
);
3429 zvni_mac_del(wctx
->zvni
, mac
);
3436 * Delete all MAC entries from specific VTEP for a particular VNI.
3438 static void zvni_mac_del_from_vtep(zebra_vni_t
*zvni
, int uninstall
,
3439 struct in_addr
*r_vtep_ip
)
3441 struct mac_walk_ctx wctx
;
3443 if (!zvni
->mac_table
)
3446 memset(&wctx
, 0, sizeof(struct mac_walk_ctx
));
3448 wctx
.uninstall
= uninstall
;
3449 wctx
.flags
= DEL_REMOTE_MAC_FROM_VTEP
;
3450 wctx
.r_vtep_ip
= *r_vtep_ip
;
3452 hash_iterate(zvni
->mac_table
, zvni_mac_del_hash_entry
, &wctx
);
3456 * Delete all MAC entries for this VNI.
3458 static void zvni_mac_del_all(zebra_vni_t
*zvni
, int uninstall
, int upd_client
,
3461 struct mac_walk_ctx wctx
;
3463 if (!zvni
->mac_table
)
3466 memset(&wctx
, 0, sizeof(struct mac_walk_ctx
));
3468 wctx
.uninstall
= uninstall
;
3469 wctx
.upd_client
= upd_client
;
3472 hash_iterate(zvni
->mac_table
, zvni_mac_del_hash_entry
, &wctx
);
3476 * Look up MAC hash entry.
3478 static zebra_mac_t
*zvni_mac_lookup(zebra_vni_t
*zvni
, struct ethaddr
*mac
)
3483 memset(&tmp
, 0, sizeof(tmp
));
3484 memcpy(&tmp
.macaddr
, mac
, ETH_ALEN
);
3485 pmac
= hash_lookup(zvni
->mac_table
, &tmp
);
3491 * Inform BGP about local MAC addition.
3493 static int zvni_mac_send_add_to_client(vni_t vni
, struct ethaddr
*macaddr
,
3494 uint8_t mac_flags
, uint32_t seq
)
3498 if (CHECK_FLAG(mac_flags
, ZEBRA_MAC_STICKY
))
3499 SET_FLAG(flags
, ZEBRA_MACIP_TYPE_STICKY
);
3500 if (CHECK_FLAG(mac_flags
, ZEBRA_MAC_DEF_GW
))
3501 SET_FLAG(flags
, ZEBRA_MACIP_TYPE_GW
);
3503 return zvni_macip_send_msg_to_client(vni
, macaddr
, NULL
, flags
,
3504 seq
, ZEBRA_NEIGH_ACTIVE
, ZEBRA_MACIP_ADD
);
3508 * Inform BGP about local MAC deletion.
3510 static int zvni_mac_send_del_to_client(vni_t vni
, struct ethaddr
*macaddr
)
3512 return zvni_macip_send_msg_to_client(vni
, macaddr
, NULL
, 0 /* flags */,
3513 0 /* seq */, ZEBRA_NEIGH_ACTIVE
, ZEBRA_MACIP_DEL
);
3517 * Map port or (port, VLAN) to a VNI. This is invoked upon getting MAC
3518 * notifications, to see if they are of interest.
3520 static zebra_vni_t
*zvni_map_vlan(struct interface
*ifp
,
3521 struct interface
*br_if
, vlanid_t vid
)
3523 struct zebra_ns
*zns
;
3524 struct route_node
*rn
;
3525 struct interface
*tmp_if
= NULL
;
3526 struct zebra_if
*zif
;
3527 struct zebra_l2info_bridge
*br
;
3528 struct zebra_l2info_vxlan
*vxl
= NULL
;
3529 uint8_t bridge_vlan_aware
;
3533 /* Determine if bridge is VLAN-aware or not */
3536 br
= &zif
->l2info
.br
;
3537 bridge_vlan_aware
= br
->vlan_aware
;
3539 /* See if this interface (or interface plus VLAN Id) maps to a VxLAN */
3540 /* TODO: Optimize with a hash. */
3541 zns
= zebra_ns_lookup(NS_DEFAULT
);
3542 for (rn
= route_top(zns
->if_table
); rn
; rn
= route_next(rn
)) {
3543 tmp_if
= (struct interface
*)rn
->info
;
3547 if (!zif
|| zif
->zif_type
!= ZEBRA_IF_VXLAN
)
3549 if (!if_is_operative(tmp_if
))
3551 vxl
= &zif
->l2info
.vxl
;
3553 if (zif
->brslave_info
.br_if
!= br_if
)
3556 if (!bridge_vlan_aware
|| vxl
->access_vlan
== vid
) {
3565 zvni
= zvni_lookup(vxl
->vni
);
3570 * Map SVI and associated bridge to a VNI. This is invoked upon getting
3571 * neighbor notifications, to see if they are of interest.
3573 static zebra_vni_t
*zvni_from_svi(struct interface
*ifp
,
3574 struct interface
*br_if
)
3576 struct zebra_ns
*zns
;
3577 struct route_node
*rn
;
3578 struct interface
*tmp_if
= NULL
;
3579 struct zebra_if
*zif
;
3580 struct zebra_l2info_bridge
*br
;
3581 struct zebra_l2info_vxlan
*vxl
= NULL
;
3582 uint8_t bridge_vlan_aware
;
3590 /* Make sure the linked interface is a bridge. */
3591 if (!IS_ZEBRA_IF_BRIDGE(br_if
))
3594 /* Determine if bridge is VLAN-aware or not */
3597 br
= &zif
->l2info
.br
;
3598 bridge_vlan_aware
= br
->vlan_aware
;
3599 if (bridge_vlan_aware
) {
3600 struct zebra_l2info_vlan
*vl
;
3602 if (!IS_ZEBRA_IF_VLAN(ifp
))
3607 vl
= &zif
->l2info
.vl
;
3611 /* See if this interface (or interface plus VLAN Id) maps to a VxLAN */
3612 /* TODO: Optimize with a hash. */
3613 zns
= zebra_ns_lookup(NS_DEFAULT
);
3614 for (rn
= route_top(zns
->if_table
); rn
; rn
= route_next(rn
)) {
3615 tmp_if
= (struct interface
*)rn
->info
;
3619 if (!zif
|| zif
->zif_type
!= ZEBRA_IF_VXLAN
)
3621 if (!if_is_operative(tmp_if
))
3623 vxl
= &zif
->l2info
.vxl
;
3625 if (zif
->brslave_info
.br_if
!= br_if
)
3628 if (!bridge_vlan_aware
|| vxl
->access_vlan
== vid
) {
3637 zvni
= zvni_lookup(vxl
->vni
);
3641 /* Map to SVI on bridge corresponding to specified VLAN. This can be one
3643 * (a) In the case of a VLAN-aware bridge, the SVI is a L3 VLAN interface
3644 * linked to the bridge
3645 * (b) In the case of a VLAN-unaware bridge, the SVI is the bridge inteface
3648 static struct interface
*zvni_map_to_svi(vlanid_t vid
, struct interface
*br_if
)
3650 struct zebra_ns
*zns
;
3651 struct route_node
*rn
;
3652 struct interface
*tmp_if
= NULL
;
3653 struct zebra_if
*zif
;
3654 struct zebra_l2info_bridge
*br
;
3655 struct zebra_l2info_vlan
*vl
;
3656 uint8_t bridge_vlan_aware
;
3659 /* Defensive check, caller expected to invoke only with valid bridge. */
3663 /* Determine if bridge is VLAN-aware or not */
3666 br
= &zif
->l2info
.br
;
3667 bridge_vlan_aware
= br
->vlan_aware
;
3669 /* Check oper status of the SVI. */
3670 if (!bridge_vlan_aware
)
3671 return if_is_operative(br_if
) ? br_if
: NULL
;
3673 /* Identify corresponding VLAN interface. */
3674 /* TODO: Optimize with a hash. */
3675 zns
= zebra_ns_lookup(NS_DEFAULT
);
3676 for (rn
= route_top(zns
->if_table
); rn
; rn
= route_next(rn
)) {
3677 tmp_if
= (struct interface
*)rn
->info
;
3678 /* Check oper status of the SVI. */
3679 if (!tmp_if
|| !if_is_operative(tmp_if
))
3682 if (!zif
|| zif
->zif_type
!= ZEBRA_IF_VLAN
3683 || zif
->link
!= br_if
)
3685 vl
= (struct zebra_l2info_vlan
*)&zif
->l2info
.vl
;
3687 if (vl
->vid
== vid
) {
3693 return found
? tmp_if
: NULL
;
3697 * Install remote MAC into the kernel.
3699 static int zvni_mac_install(zebra_vni_t
*zvni
, zebra_mac_t
*mac
)
3701 struct zebra_if
*zif
;
3702 struct zebra_l2info_vxlan
*vxl
;
3705 if (!(mac
->flags
& ZEBRA_MAC_REMOTE
))
3708 zif
= zvni
->vxlan_if
->info
;
3711 vxl
= &zif
->l2info
.vxl
;
3713 sticky
= !!CHECK_FLAG(mac
->flags
,
3714 (ZEBRA_MAC_STICKY
| ZEBRA_MAC_REMOTE_DEF_GW
));
3716 return kernel_add_mac(zvni
->vxlan_if
, vxl
->access_vlan
, &mac
->macaddr
,
3717 mac
->fwd_info
.r_vtep_ip
, sticky
);
3721 * Uninstall remote MAC from the kernel.
3723 static int zvni_mac_uninstall(zebra_vni_t
*zvni
, zebra_mac_t
*mac
)
3725 struct zebra_if
*zif
;
3726 struct zebra_l2info_vxlan
*vxl
;
3727 struct in_addr vtep_ip
;
3728 struct interface
*ifp
;
3730 if (!(mac
->flags
& ZEBRA_MAC_REMOTE
))
3733 if (!zvni
->vxlan_if
) {
3734 zlog_debug("VNI %u hash %p couldn't be uninstalled - no intf",
3739 zif
= zvni
->vxlan_if
->info
;
3742 vxl
= &zif
->l2info
.vxl
;
3744 ifp
= zvni
->vxlan_if
;
3745 vtep_ip
= mac
->fwd_info
.r_vtep_ip
;
3747 return kernel_del_mac(ifp
, vxl
->access_vlan
, &mac
->macaddr
, vtep_ip
);
3751 * Install MAC hash entry - called upon access VLAN change.
3753 static void zvni_install_mac_hash(struct hash_bucket
*bucket
, void *ctxt
)
3756 struct mac_walk_ctx
*wctx
= ctxt
;
3758 mac
= (zebra_mac_t
*)bucket
->data
;
3760 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
))
3761 zvni_mac_install(wctx
->zvni
, mac
);
3765 * Count of remote neighbors referencing this MAC.
3767 static int remote_neigh_count(zebra_mac_t
*zmac
)
3769 zebra_neigh_t
*n
= NULL
;
3770 struct listnode
*node
= NULL
;
3773 for (ALL_LIST_ELEMENTS_RO(zmac
->neigh_list
, node
, n
)) {
3774 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
))
3782 * Decrement neighbor refcount of MAC; uninstall and free it if
3785 static void zvni_deref_ip2mac(zebra_vni_t
*zvni
, zebra_mac_t
*mac
)
3787 if (!CHECK_FLAG(mac
->flags
, ZEBRA_MAC_AUTO
))
3790 /* If all remote neighbors referencing a remote MAC go away,
3791 * we need to uninstall the MAC.
3793 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
) &&
3794 remote_neigh_count(mac
) == 0) {
3795 zvni_mac_uninstall(zvni
, mac
);
3796 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
);
3799 /* If no neighbors, delete the MAC. */
3800 if (list_isempty(mac
->neigh_list
))
3801 zvni_mac_del(zvni
, mac
);
3805 * Read and populate local MACs and neighbors corresponding to this VNI.
3807 static void zvni_read_mac_neigh(zebra_vni_t
*zvni
, struct interface
*ifp
)
3809 struct zebra_ns
*zns
;
3810 struct zebra_if
*zif
;
3811 struct interface
*vlan_if
;
3812 struct zebra_l2info_vxlan
*vxl
;
3813 struct interface
*vrr_if
;
3816 vxl
= &zif
->l2info
.vxl
;
3817 zns
= zebra_ns_lookup(NS_DEFAULT
);
3819 if (IS_ZEBRA_DEBUG_VXLAN
)
3821 "Reading MAC FDB and Neighbors for intf %s(%u) VNI %u master %u",
3822 ifp
->name
, ifp
->ifindex
, zvni
->vni
,
3823 zif
->brslave_info
.bridge_ifindex
);
3825 macfdb_read_for_bridge(zns
, ifp
, zif
->brslave_info
.br_if
);
3826 vlan_if
= zvni_map_to_svi(vxl
->access_vlan
, zif
->brslave_info
.br_if
);
3829 /* Add SVI MAC-IP */
3830 zvni_add_macip_for_intf(vlan_if
, zvni
);
3832 /* Add VRR MAC-IP - if any*/
3833 vrr_if
= zebra_get_vrr_intf_for_svi(vlan_if
);
3835 zvni_add_macip_for_intf(vrr_if
, zvni
);
3837 neigh_read_for_vlan(zns
, vlan_if
);
3842 * Hash function for VNI.
3844 static unsigned int vni_hash_keymake(const void *p
)
3846 const zebra_vni_t
*zvni
= p
;
3848 return (jhash_1word(zvni
->vni
, 0));
3852 * Compare 2 VNI hash entries.
3854 static bool vni_hash_cmp(const void *p1
, const void *p2
)
3856 const zebra_vni_t
*zvni1
= p1
;
3857 const zebra_vni_t
*zvni2
= p2
;
3859 return (zvni1
->vni
== zvni2
->vni
);
3862 static int vni_list_cmp(void *p1
, void *p2
)
3864 const zebra_vni_t
*zvni1
= p1
;
3865 const zebra_vni_t
*zvni2
= p2
;
3867 if (zvni1
->vni
== zvni2
->vni
)
3869 return (zvni1
->vni
< zvni2
->vni
) ? -1 : 1;
3873 * Callback to allocate VNI hash entry.
3875 static void *zvni_alloc(void *p
)
3877 const zebra_vni_t
*tmp_vni
= p
;
3880 zvni
= XCALLOC(MTYPE_ZVNI
, sizeof(zebra_vni_t
));
3881 zvni
->vni
= tmp_vni
->vni
;
3882 return ((void *)zvni
);
3886 * Look up VNI hash entry.
3888 static zebra_vni_t
*zvni_lookup(vni_t vni
)
3890 struct zebra_vrf
*zvrf
;
3891 zebra_vni_t tmp_vni
;
3892 zebra_vni_t
*zvni
= NULL
;
3894 zvrf
= zebra_vrf_get_evpn();
3896 memset(&tmp_vni
, 0, sizeof(zebra_vni_t
));
3898 zvni
= hash_lookup(zvrf
->vni_table
, &tmp_vni
);
3904 * Add VNI hash entry.
3906 static zebra_vni_t
*zvni_add(vni_t vni
)
3908 struct zebra_vrf
*zvrf
;
3909 zebra_vni_t tmp_zvni
;
3910 zebra_vni_t
*zvni
= NULL
;
3912 zvrf
= zebra_vrf_get_evpn();
3914 memset(&tmp_zvni
, 0, sizeof(zebra_vni_t
));
3916 zvni
= hash_get(zvrf
->vni_table
, &tmp_zvni
, zvni_alloc
);
3919 /* Create hash table for MAC */
3921 hash_create(mac_hash_keymake
, mac_cmp
, "Zebra VNI MAC Table");
3923 /* Create hash table for neighbors */
3924 zvni
->neigh_table
= hash_create(neigh_hash_keymake
, neigh_cmp
,
3925 "Zebra VNI Neighbor Table");
3931 * Delete VNI hash entry.
3933 static int zvni_del(zebra_vni_t
*zvni
)
3935 struct zebra_vrf
*zvrf
;
3936 zebra_vni_t
*tmp_zvni
;
3938 zvrf
= zebra_vrf_get_evpn();
3941 zvni
->vxlan_if
= NULL
;
3943 /* Remove references to the BUM mcast grp */
3944 zebra_vxlan_sg_deref(zvni
->local_vtep_ip
, zvni
->mcast_grp
);
3946 /* Free the neighbor hash table. */
3947 hash_free(zvni
->neigh_table
);
3948 zvni
->neigh_table
= NULL
;
3950 /* Free the MAC hash table. */
3951 hash_free(zvni
->mac_table
);
3952 zvni
->mac_table
= NULL
;
3954 /* Free the VNI hash entry and allocated memory. */
3955 tmp_zvni
= hash_release(zvrf
->vni_table
, zvni
);
3956 XFREE(MTYPE_ZVNI
, tmp_zvni
);
3962 * Inform BGP about local VNI addition.
3964 static int zvni_send_add_to_client(zebra_vni_t
*zvni
)
3966 struct zserv
*client
;
3969 client
= zserv_find_client(ZEBRA_ROUTE_BGP
, 0);
3970 /* BGP may not be running. */
3974 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
3976 zclient_create_header(s
, ZEBRA_VNI_ADD
, zebra_vrf_get_evpn_id());
3977 stream_putl(s
, zvni
->vni
);
3978 stream_put_in_addr(s
, &zvni
->local_vtep_ip
);
3979 stream_put(s
, &zvni
->vrf_id
, sizeof(vrf_id_t
)); /* tenant vrf */
3980 stream_put_in_addr(s
, &zvni
->mcast_grp
);
3982 /* Write packet size. */
3983 stream_putw_at(s
, 0, stream_get_endp(s
));
3985 if (IS_ZEBRA_DEBUG_VXLAN
)
3986 zlog_debug("Send VNI_ADD %u %s tenant vrf %s to %s", zvni
->vni
,
3987 inet_ntoa(zvni
->local_vtep_ip
),
3988 vrf_id_to_name(zvni
->vrf_id
),
3989 zebra_route_string(client
->proto
));
3991 client
->vniadd_cnt
++;
3992 return zserv_send_message(client
, s
);
3996 * Inform BGP about local VNI deletion.
3998 static int zvni_send_del_to_client(vni_t vni
)
4000 struct zserv
*client
;
4003 client
= zserv_find_client(ZEBRA_ROUTE_BGP
, 0);
4004 /* BGP may not be running. */
4008 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
4011 zclient_create_header(s
, ZEBRA_VNI_DEL
, zebra_vrf_get_evpn_id());
4012 stream_putl(s
, vni
);
4014 /* Write packet size. */
4015 stream_putw_at(s
, 0, stream_get_endp(s
));
4017 if (IS_ZEBRA_DEBUG_VXLAN
)
4018 zlog_debug("Send VNI_DEL %u to %s", vni
,
4019 zebra_route_string(client
->proto
));
4021 client
->vnidel_cnt
++;
4022 return zserv_send_message(client
, s
);
4026 * Build the VNI hash table by going over the VxLAN interfaces. This
4027 * is called when EVPN (advertise-all-vni) is enabled.
4029 static void zvni_build_hash_table(void)
4031 struct zebra_ns
*zns
;
4032 struct route_node
*rn
;
4033 struct interface
*ifp
;
4035 /* Walk VxLAN interfaces and create VNI hash. */
4036 zns
= zebra_ns_lookup(NS_DEFAULT
);
4037 for (rn
= route_top(zns
->if_table
); rn
; rn
= route_next(rn
)) {
4039 zebra_vni_t
*zvni
= NULL
;
4040 zebra_l3vni_t
*zl3vni
= NULL
;
4041 struct zebra_if
*zif
;
4042 struct zebra_l2info_vxlan
*vxl
;
4044 ifp
= (struct interface
*)rn
->info
;
4048 if (!zif
|| zif
->zif_type
!= ZEBRA_IF_VXLAN
)
4051 vxl
= &zif
->l2info
.vxl
;
4054 /* L3-VNI and L2-VNI are handled seperately */
4055 zl3vni
= zl3vni_lookup(vni
);
4058 if (IS_ZEBRA_DEBUG_VXLAN
)
4060 "create L3-VNI hash for Intf %s(%u) L3-VNI %u",
4061 ifp
->name
, ifp
->ifindex
, vni
);
4063 /* associate with vxlan_if */
4064 zl3vni
->local_vtep_ip
= vxl
->vtep_ip
;
4065 zl3vni
->vxlan_if
= ifp
;
4068 * we need to associate with SVI.
4069 * we can associate with svi-if only after association
4070 * with vxlan-intf is complete
4072 zl3vni
->svi_if
= zl3vni_map_to_svi_if(zl3vni
);
4074 if (is_l3vni_oper_up(zl3vni
))
4075 zebra_vxlan_process_l3vni_oper_up(zl3vni
);
4078 struct interface
*vlan_if
= NULL
;
4080 if (IS_ZEBRA_DEBUG_VXLAN
)
4082 "Create L2-VNI hash for intf %s(%u) L2-VNI %u local IP %s",
4083 ifp
->name
, ifp
->ifindex
, vni
,
4084 inet_ntoa(vxl
->vtep_ip
));
4086 /* VNI hash entry is expected to exist, if the BGP process is killed */
4087 zvni
= zvni_lookup(vni
);
4090 "VNI hash already present for IF %s(%u) L2-VNI %u",
4091 ifp
->name
, ifp
->ifindex
, vni
);
4094 * Inform BGP if intf is up and mapped to
4097 if (if_is_operative(ifp
) &&
4098 zif
->brslave_info
.br_if
)
4099 zvni_send_add_to_client(zvni
);
4101 /* Send Local MAC-entries to client */
4102 zvni_send_mac_to_client(zvni
);
4104 /* Send Loval Neighbor entries to client */
4105 zvni_send_neigh_to_client(zvni
);
4107 zvni
= zvni_add(vni
);
4110 "Failed to add VNI hash, IF %s(%u) L2-VNI %u",
4111 ifp
->name
, ifp
->ifindex
, vni
);
4115 if (zvni
->local_vtep_ip
.s_addr
!=
4116 vxl
->vtep_ip
.s_addr
||
4117 zvni
->mcast_grp
.s_addr
!=
4118 vxl
->mcast_grp
.s_addr
) {
4119 zebra_vxlan_sg_deref(
4120 zvni
->local_vtep_ip
,
4122 zebra_vxlan_sg_ref(vxl
->vtep_ip
,
4124 zvni
->local_vtep_ip
= vxl
->vtep_ip
;
4125 zvni
->mcast_grp
= vxl
->mcast_grp
;
4127 zvni
->vxlan_if
= ifp
;
4128 vlan_if
= zvni_map_to_svi(vxl
->access_vlan
,
4129 zif
->brslave_info
.br_if
);
4131 zvni
->vrf_id
= vlan_if
->vrf_id
;
4132 zl3vni
= zl3vni_from_vrf(
4136 zl3vni
->l2vnis
, zvni
);
4140 * Inform BGP if intf is up and mapped to
4143 if (if_is_operative(ifp
) &&
4144 zif
->brslave_info
.br_if
)
4145 zvni_send_add_to_client(zvni
);
4152 * See if remote VTEP matches with prefix.
4154 static int zvni_vtep_match(struct in_addr
*vtep_ip
, zebra_vtep_t
*zvtep
)
4156 return (IPV4_ADDR_SAME(vtep_ip
, &zvtep
->vtep_ip
));
4160 * Locate remote VTEP in VNI hash table.
4162 static zebra_vtep_t
*zvni_vtep_find(zebra_vni_t
*zvni
, struct in_addr
*vtep_ip
)
4164 zebra_vtep_t
*zvtep
;
4169 for (zvtep
= zvni
->vteps
; zvtep
; zvtep
= zvtep
->next
) {
4170 if (zvni_vtep_match(vtep_ip
, zvtep
))
4178 * Add remote VTEP to VNI hash table.
4180 static zebra_vtep_t
*zvni_vtep_add(zebra_vni_t
*zvni
, struct in_addr
*vtep_ip
,
4184 zebra_vtep_t
*zvtep
;
4186 zvtep
= XCALLOC(MTYPE_ZVNI_VTEP
, sizeof(zebra_vtep_t
));
4188 zvtep
->vtep_ip
= *vtep_ip
;
4189 zvtep
->flood_control
= flood_control
;
4192 zvni
->vteps
->prev
= zvtep
;
4193 zvtep
->next
= zvni
->vteps
;
4194 zvni
->vteps
= zvtep
;
4200 * Remove remote VTEP from VNI hash table.
4202 static int zvni_vtep_del(zebra_vni_t
*zvni
, zebra_vtep_t
*zvtep
)
4205 zvtep
->next
->prev
= zvtep
->prev
;
4207 zvtep
->prev
->next
= zvtep
->next
;
4209 zvni
->vteps
= zvtep
->next
;
4211 zvtep
->prev
= zvtep
->next
= NULL
;
4212 XFREE(MTYPE_ZVNI_VTEP
, zvtep
);
4218 * Delete all remote VTEPs for this VNI (upon VNI delete). Also
4219 * uninstall from kernel if asked to.
4221 static int zvni_vtep_del_all(zebra_vni_t
*zvni
, int uninstall
)
4223 zebra_vtep_t
*zvtep
, *zvtep_next
;
4228 for (zvtep
= zvni
->vteps
; zvtep
; zvtep
= zvtep_next
) {
4229 zvtep_next
= zvtep
->next
;
4231 zvni_vtep_uninstall(zvni
, &zvtep
->vtep_ip
);
4232 zvni_vtep_del(zvni
, zvtep
);
4239 * Install remote VTEP into the kernel if the remote VTEP has asked
4240 * for head-end-replication.
4242 static int zvni_vtep_install(zebra_vni_t
*zvni
, zebra_vtep_t
*zvtep
)
4244 if (is_vxlan_flooding_head_end() &&
4245 (zvtep
->flood_control
== VXLAN_FLOOD_HEAD_END_REPL
))
4246 return kernel_add_vtep(zvni
->vni
, zvni
->vxlan_if
,
4252 * Uninstall remote VTEP from the kernel.
4254 static int zvni_vtep_uninstall(zebra_vni_t
*zvni
, struct in_addr
*vtep_ip
)
4256 if (!zvni
->vxlan_if
) {
4257 zlog_debug("VNI %u hash %p couldn't be uninstalled - no intf",
4262 return kernel_del_vtep(zvni
->vni
, zvni
->vxlan_if
, vtep_ip
);
4266 * Install or uninstall flood entries in the kernel corresponding to
4267 * remote VTEPs. This is invoked upon change to BUM handling.
4269 static void zvni_handle_flooding_remote_vteps(struct hash_bucket
*bucket
,
4273 zebra_vtep_t
*zvtep
;
4275 zvni
= (zebra_vni_t
*)bucket
->data
;
4279 for (zvtep
= zvni
->vteps
; zvtep
; zvtep
= zvtep
->next
) {
4280 if (is_vxlan_flooding_head_end())
4281 zvni_vtep_install(zvni
, zvtep
);
4283 zvni_vtep_uninstall(zvni
, &zvtep
->vtep_ip
);
4288 * Cleanup VNI/VTEP and update kernel
4290 static void zvni_cleanup_all(struct hash_bucket
*bucket
, void *arg
)
4292 zebra_vni_t
*zvni
= NULL
;
4293 zebra_l3vni_t
*zl3vni
= NULL
;
4294 struct zebra_vrf
*zvrf
= (struct zebra_vrf
*)arg
;
4296 zvni
= (zebra_vni_t
*)bucket
->data
;
4298 /* remove from l3-vni list */
4300 zl3vni
= zl3vni_lookup(zvrf
->l3vni
);
4302 listnode_delete(zl3vni
->l2vnis
, zvni
);
4304 /* Free up all neighbors and MACs, if any. */
4305 zvni_neigh_del_all(zvni
, 1, 0, DEL_ALL_NEIGH
);
4306 zvni_mac_del_all(zvni
, 1, 0, DEL_ALL_MAC
);
4308 /* Free up all remote VTEPs, if any. */
4309 zvni_vtep_del_all(zvni
, 1);
4311 /* Delete the hash entry. */
4316 static void zl3vni_cleanup_all(struct hash_bucket
*bucket
, void *args
)
4318 zebra_l3vni_t
*zl3vni
= NULL
;
4320 zl3vni
= (zebra_l3vni_t
*)bucket
->data
;
4322 zebra_vxlan_process_l3vni_oper_down(zl3vni
);
4325 static void rb_find_or_add_host(struct host_rb_tree_entry
*hrbe
,
4326 struct prefix
*host
)
4328 struct host_rb_entry lookup
;
4329 struct host_rb_entry
*hle
;
4331 memset(&lookup
, 0, sizeof(lookup
));
4332 memcpy(&lookup
.p
, host
, sizeof(*host
));
4334 hle
= RB_FIND(host_rb_tree_entry
, hrbe
, &lookup
);
4338 hle
= XCALLOC(MTYPE_HOST_PREFIX
, sizeof(struct host_rb_entry
));
4339 memcpy(hle
, &lookup
, sizeof(lookup
));
4341 RB_INSERT(host_rb_tree_entry
, hrbe
, hle
);
4344 static void rb_delete_host(struct host_rb_tree_entry
*hrbe
, struct prefix
*host
)
4346 struct host_rb_entry lookup
;
4347 struct host_rb_entry
*hle
;
4349 memset(&lookup
, 0, sizeof(lookup
));
4350 memcpy(&lookup
.p
, host
, sizeof(*host
));
4352 hle
= RB_FIND(host_rb_tree_entry
, hrbe
, &lookup
);
4354 RB_REMOVE(host_rb_tree_entry
, hrbe
, hle
);
4355 XFREE(MTYPE_HOST_PREFIX
, hle
);
4362 * Look up MAC hash entry.
4364 static zebra_mac_t
*zl3vni_rmac_lookup(zebra_l3vni_t
*zl3vni
,
4365 struct ethaddr
*rmac
)
4370 memset(&tmp
, 0, sizeof(tmp
));
4371 memcpy(&tmp
.macaddr
, rmac
, ETH_ALEN
);
4372 pmac
= hash_lookup(zl3vni
->rmac_table
, &tmp
);
4378 * Callback to allocate RMAC hash entry.
4380 static void *zl3vni_rmac_alloc(void *p
)
4382 const zebra_mac_t
*tmp_rmac
= p
;
4385 zrmac
= XCALLOC(MTYPE_MAC
, sizeof(zebra_mac_t
));
4388 return ((void *)zrmac
);
4392 * Add RMAC entry to l3-vni
4394 static zebra_mac_t
*zl3vni_rmac_add(zebra_l3vni_t
*zl3vni
, struct ethaddr
*rmac
)
4396 zebra_mac_t tmp_rmac
;
4397 zebra_mac_t
*zrmac
= NULL
;
4399 memset(&tmp_rmac
, 0, sizeof(zebra_mac_t
));
4400 memcpy(&tmp_rmac
.macaddr
, rmac
, ETH_ALEN
);
4401 zrmac
= hash_get(zl3vni
->rmac_table
, &tmp_rmac
, zl3vni_rmac_alloc
);
4404 RB_INIT(host_rb_tree_entry
, &zrmac
->host_rb
);
4406 SET_FLAG(zrmac
->flags
, ZEBRA_MAC_REMOTE
);
4407 SET_FLAG(zrmac
->flags
, ZEBRA_MAC_REMOTE_RMAC
);
4415 static int zl3vni_rmac_del(zebra_l3vni_t
*zl3vni
, zebra_mac_t
*zrmac
)
4417 zebra_mac_t
*tmp_rmac
;
4418 struct host_rb_entry
*hle
;
4420 while (!RB_EMPTY(host_rb_tree_entry
, &zrmac
->host_rb
)) {
4421 hle
= RB_ROOT(host_rb_tree_entry
, &zrmac
->host_rb
);
4423 RB_REMOVE(host_rb_tree_entry
, &zrmac
->host_rb
, hle
);
4424 XFREE(MTYPE_HOST_PREFIX
, hle
);
4427 tmp_rmac
= hash_release(zl3vni
->rmac_table
, zrmac
);
4428 XFREE(MTYPE_MAC
, tmp_rmac
);
4434 * Install remote RMAC into the kernel.
4436 static int zl3vni_rmac_install(zebra_l3vni_t
*zl3vni
, zebra_mac_t
*zrmac
)
4438 struct zebra_if
*zif
= NULL
;
4439 struct zebra_l2info_vxlan
*vxl
= NULL
;
4441 if (!(CHECK_FLAG(zrmac
->flags
, ZEBRA_MAC_REMOTE
))
4442 || !(CHECK_FLAG(zrmac
->flags
, ZEBRA_MAC_REMOTE_RMAC
)))
4445 zif
= zl3vni
->vxlan_if
->info
;
4449 vxl
= &zif
->l2info
.vxl
;
4451 return kernel_add_mac(zl3vni
->vxlan_if
, vxl
->access_vlan
,
4452 &zrmac
->macaddr
, zrmac
->fwd_info
.r_vtep_ip
, 0);
4456 * Uninstall remote RMAC from the kernel.
4458 static int zl3vni_rmac_uninstall(zebra_l3vni_t
*zl3vni
, zebra_mac_t
*zrmac
)
4460 char buf
[ETHER_ADDR_STRLEN
];
4461 struct zebra_if
*zif
= NULL
;
4462 struct zebra_l2info_vxlan
*vxl
= NULL
;
4464 if (!(CHECK_FLAG(zrmac
->flags
, ZEBRA_MAC_REMOTE
))
4465 || !(CHECK_FLAG(zrmac
->flags
, ZEBRA_MAC_REMOTE_RMAC
)))
4468 if (!zl3vni
->vxlan_if
) {
4470 "RMAC %s on L3-VNI %u hash %p couldn't be uninstalled - no vxlan_if",
4471 prefix_mac2str(&zrmac
->macaddr
, buf
, sizeof(buf
)),
4472 zl3vni
->vni
, zl3vni
);
4476 zif
= zl3vni
->vxlan_if
->info
;
4480 vxl
= &zif
->l2info
.vxl
;
4482 return kernel_del_mac(zl3vni
->vxlan_if
, vxl
->access_vlan
,
4483 &zrmac
->macaddr
, zrmac
->fwd_info
.r_vtep_ip
);
4486 /* handle rmac add */
4487 static int zl3vni_remote_rmac_add(zebra_l3vni_t
*zl3vni
, struct ethaddr
*rmac
,
4488 struct ipaddr
*vtep_ip
,
4489 struct prefix
*host_prefix
)
4491 char buf
[ETHER_ADDR_STRLEN
];
4492 char buf1
[INET6_ADDRSTRLEN
];
4493 zebra_mac_t
*zrmac
= NULL
;
4495 zrmac
= zl3vni_rmac_lookup(zl3vni
, rmac
);
4498 zrmac
= zl3vni_rmac_add(zl3vni
, rmac
);
4501 "Failed to add RMAC %s L3VNI %u Remote VTEP %s",
4502 prefix_mac2str(rmac
, buf
, sizeof(buf
)),
4504 ipaddr2str(vtep_ip
, buf1
, sizeof(buf1
)));
4507 memset(&zrmac
->fwd_info
, 0, sizeof(zrmac
->fwd_info
));
4508 zrmac
->fwd_info
.r_vtep_ip
= vtep_ip
->ipaddr_v4
;
4510 /* Send RMAC for FPM processing */
4511 hook_call(zebra_rmac_update
, zrmac
, zl3vni
, false,
4514 /* install rmac in kernel */
4515 zl3vni_rmac_install(zl3vni
, zrmac
);
4518 rb_find_or_add_host(&zrmac
->host_rb
, host_prefix
);
4524 /* handle rmac delete */
4525 static void zl3vni_remote_rmac_del(zebra_l3vni_t
*zl3vni
, zebra_mac_t
*zrmac
,
4526 struct prefix
*host_prefix
)
4528 rb_delete_host(&zrmac
->host_rb
, host_prefix
);
4530 if (RB_EMPTY(host_rb_tree_entry
, &zrmac
->host_rb
)) {
4531 /* uninstall from kernel */
4532 zl3vni_rmac_uninstall(zl3vni
, zrmac
);
4534 /* Send RMAC for FPM processing */
4535 hook_call(zebra_rmac_update
, zrmac
, zl3vni
, true,
4538 /* del the rmac entry */
4539 zl3vni_rmac_del(zl3vni
, zrmac
);
4544 * Look up nh hash entry on a l3-vni.
4546 static zebra_neigh_t
*zl3vni_nh_lookup(zebra_l3vni_t
*zl3vni
, struct ipaddr
*ip
)
4551 memset(&tmp
, 0, sizeof(tmp
));
4552 memcpy(&tmp
.ip
, ip
, sizeof(struct ipaddr
));
4553 n
= hash_lookup(zl3vni
->nh_table
, &tmp
);
4560 * Callback to allocate NH hash entry on L3-VNI.
4562 static void *zl3vni_nh_alloc(void *p
)
4564 const zebra_neigh_t
*tmp_n
= p
;
4567 n
= XCALLOC(MTYPE_NEIGH
, sizeof(zebra_neigh_t
));
4574 * Add neighbor entry.
4576 static zebra_neigh_t
*zl3vni_nh_add(zebra_l3vni_t
*zl3vni
, struct ipaddr
*ip
,
4577 struct ethaddr
*mac
)
4579 zebra_neigh_t tmp_n
;
4580 zebra_neigh_t
*n
= NULL
;
4582 memset(&tmp_n
, 0, sizeof(zebra_neigh_t
));
4583 memcpy(&tmp_n
.ip
, ip
, sizeof(struct ipaddr
));
4584 n
= hash_get(zl3vni
->nh_table
, &tmp_n
, zl3vni_nh_alloc
);
4587 RB_INIT(host_rb_tree_entry
, &n
->host_rb
);
4589 memcpy(&n
->emac
, mac
, ETH_ALEN
);
4590 SET_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
);
4591 SET_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE_NH
);
4597 * Delete neighbor entry.
4599 static int zl3vni_nh_del(zebra_l3vni_t
*zl3vni
, zebra_neigh_t
*n
)
4601 zebra_neigh_t
*tmp_n
;
4602 struct host_rb_entry
*hle
;
4604 while (!RB_EMPTY(host_rb_tree_entry
, &n
->host_rb
)) {
4605 hle
= RB_ROOT(host_rb_tree_entry
, &n
->host_rb
);
4607 RB_REMOVE(host_rb_tree_entry
, &n
->host_rb
, hle
);
4608 XFREE(MTYPE_HOST_PREFIX
, hle
);
4611 tmp_n
= hash_release(zl3vni
->nh_table
, n
);
4612 XFREE(MTYPE_NEIGH
, tmp_n
);
4618 * Install remote nh as neigh into the kernel.
4620 static int zl3vni_nh_install(zebra_l3vni_t
*zl3vni
, zebra_neigh_t
*n
)
4627 if (!is_l3vni_oper_up(zl3vni
))
4630 if (!(n
->flags
& ZEBRA_NEIGH_REMOTE
)
4631 || !(n
->flags
& ZEBRA_NEIGH_REMOTE_NH
))
4634 flags
= NTF_EXT_LEARNED
;
4635 if (n
->flags
& ZEBRA_NEIGH_ROUTER_FLAG
)
4636 flags
|= NTF_ROUTER
;
4637 ret
= kernel_add_neigh(zl3vni
->svi_if
, &n
->ip
, &n
->emac
, flags
);
4643 * Uninstall remote nh from the kernel.
4645 static int zl3vni_nh_uninstall(zebra_l3vni_t
*zl3vni
, zebra_neigh_t
*n
)
4647 if (!(n
->flags
& ZEBRA_NEIGH_REMOTE
)
4648 || !(n
->flags
& ZEBRA_NEIGH_REMOTE_NH
))
4651 if (!zl3vni
->svi_if
|| !if_is_operative(zl3vni
->svi_if
))
4654 return kernel_del_neigh(zl3vni
->svi_if
, &n
->ip
);
4657 /* add remote vtep as a neigh entry */
4658 static int zl3vni_remote_nh_add(zebra_l3vni_t
*zl3vni
, struct ipaddr
*vtep_ip
,
4659 struct ethaddr
*rmac
,
4660 struct prefix
*host_prefix
)
4662 char buf
[ETHER_ADDR_STRLEN
];
4663 char buf1
[INET6_ADDRSTRLEN
];
4664 zebra_neigh_t
*nh
= NULL
;
4666 nh
= zl3vni_nh_lookup(zl3vni
, vtep_ip
);
4668 nh
= zl3vni_nh_add(zl3vni
, vtep_ip
, rmac
);
4672 "Failed to add NH as Neigh (IP %s MAC %s L3-VNI %u)",
4673 ipaddr2str(vtep_ip
, buf1
, sizeof(buf1
)),
4674 prefix_mac2str(rmac
, buf
, sizeof(buf
)),
4679 /* install the nh neigh in kernel */
4680 zl3vni_nh_install(zl3vni
, nh
);
4683 rb_find_or_add_host(&nh
->host_rb
, host_prefix
);
4688 /* handle nh neigh delete */
4689 static void zl3vni_remote_nh_del(zebra_l3vni_t
*zl3vni
, zebra_neigh_t
*nh
,
4690 struct prefix
*host_prefix
)
4692 rb_delete_host(&nh
->host_rb
, host_prefix
);
4694 if (RB_EMPTY(host_rb_tree_entry
, &nh
->host_rb
)) {
4695 /* uninstall from kernel */
4696 zl3vni_nh_uninstall(zl3vni
, nh
);
4698 /* delete the nh entry */
4699 zl3vni_nh_del(zl3vni
, nh
);
4703 /* handle neigh update from kernel - the only thing of interest is to
4704 * readd stale entries.
4706 static int zl3vni_local_nh_add_update(zebra_l3vni_t
*zl3vni
, struct ipaddr
*ip
,
4710 zebra_neigh_t
*n
= NULL
;
4712 n
= zl3vni_nh_lookup(zl3vni
, ip
);
4716 /* all next hop neigh are remote and installed by frr.
4717 * If the kernel has aged this entry, re-install.
4719 if (state
& NUD_STALE
)
4720 zl3vni_nh_install(zl3vni
, n
);
4725 /* handle neigh delete from kernel */
4726 static int zl3vni_local_nh_del(zebra_l3vni_t
*zl3vni
, struct ipaddr
*ip
)
4728 zebra_neigh_t
*n
= NULL
;
4730 n
= zl3vni_nh_lookup(zl3vni
, ip
);
4734 /* all next hop neigh are remote and installed by frr.
4735 * If we get an age out notification for these neigh entries, we have to
4738 zl3vni_nh_install(zl3vni
, n
);
4744 * Hash function for L3 VNI.
4746 static unsigned int l3vni_hash_keymake(const void *p
)
4748 const zebra_l3vni_t
*zl3vni
= p
;
4750 return jhash_1word(zl3vni
->vni
, 0);
4754 * Compare 2 L3 VNI hash entries.
4756 static bool l3vni_hash_cmp(const void *p1
, const void *p2
)
4758 const zebra_l3vni_t
*zl3vni1
= p1
;
4759 const zebra_l3vni_t
*zl3vni2
= p2
;
4761 return (zl3vni1
->vni
== zl3vni2
->vni
);
4765 * Callback to allocate L3 VNI hash entry.
4767 static void *zl3vni_alloc(void *p
)
4769 zebra_l3vni_t
*zl3vni
= NULL
;
4770 const zebra_l3vni_t
*tmp_l3vni
= p
;
4772 zl3vni
= XCALLOC(MTYPE_ZL3VNI
, sizeof(zebra_l3vni_t
));
4773 zl3vni
->vni
= tmp_l3vni
->vni
;
4774 return ((void *)zl3vni
);
4778 * Look up L3 VNI hash entry.
4780 static zebra_l3vni_t
*zl3vni_lookup(vni_t vni
)
4782 zebra_l3vni_t tmp_l3vni
;
4783 zebra_l3vni_t
*zl3vni
= NULL
;
4785 memset(&tmp_l3vni
, 0, sizeof(zebra_l3vni_t
));
4786 tmp_l3vni
.vni
= vni
;
4787 zl3vni
= hash_lookup(zrouter
.l3vni_table
, &tmp_l3vni
);
4793 * Add L3 VNI hash entry.
4795 static zebra_l3vni_t
*zl3vni_add(vni_t vni
, vrf_id_t vrf_id
)
4797 zebra_l3vni_t tmp_zl3vni
;
4798 zebra_l3vni_t
*zl3vni
= NULL
;
4800 memset(&tmp_zl3vni
, 0, sizeof(zebra_l3vni_t
));
4801 tmp_zl3vni
.vni
= vni
;
4803 zl3vni
= hash_get(zrouter
.l3vni_table
, &tmp_zl3vni
, zl3vni_alloc
);
4806 zl3vni
->vrf_id
= vrf_id
;
4807 zl3vni
->svi_if
= NULL
;
4808 zl3vni
->vxlan_if
= NULL
;
4809 zl3vni
->l2vnis
= list_new();
4810 zl3vni
->l2vnis
->cmp
= vni_list_cmp
;
4812 /* Create hash table for remote RMAC */
4813 zl3vni
->rmac_table
= hash_create(mac_hash_keymake
, mac_cmp
,
4814 "Zebra L3-VNI RMAC-Table");
4816 /* Create hash table for neighbors */
4817 zl3vni
->nh_table
= hash_create(neigh_hash_keymake
, neigh_cmp
,
4818 "Zebra L3-VNI next-hop table");
4824 * Delete L3 VNI hash entry.
4826 static int zl3vni_del(zebra_l3vni_t
*zl3vni
)
4828 zebra_l3vni_t
*tmp_zl3vni
;
4830 /* free the list of l2vnis */
4831 list_delete(&zl3vni
->l2vnis
);
4832 zl3vni
->l2vnis
= NULL
;
4834 /* Free the rmac table */
4835 hash_free(zl3vni
->rmac_table
);
4836 zl3vni
->rmac_table
= NULL
;
4838 /* Free the nh table */
4839 hash_free(zl3vni
->nh_table
);
4840 zl3vni
->nh_table
= NULL
;
4842 /* Free the VNI hash entry and allocated memory. */
4843 tmp_zl3vni
= hash_release(zrouter
.l3vni_table
, zl3vni
);
4844 XFREE(MTYPE_ZL3VNI
, tmp_zl3vni
);
4849 struct interface
*zl3vni_map_to_vxlan_if(zebra_l3vni_t
*zl3vni
)
4851 struct zebra_ns
*zns
= NULL
;
4852 struct route_node
*rn
= NULL
;
4853 struct interface
*ifp
= NULL
;
4855 /* loop through all vxlan-interface */
4856 zns
= zebra_ns_lookup(NS_DEFAULT
);
4857 for (rn
= route_top(zns
->if_table
); rn
; rn
= route_next(rn
)) {
4859 struct zebra_if
*zif
= NULL
;
4860 struct zebra_l2info_vxlan
*vxl
= NULL
;
4862 ifp
= (struct interface
*)rn
->info
;
4867 if (!zif
|| zif
->zif_type
!= ZEBRA_IF_VXLAN
)
4870 vxl
= &zif
->l2info
.vxl
;
4871 if (vxl
->vni
== zl3vni
->vni
) {
4872 zl3vni
->local_vtep_ip
= vxl
->vtep_ip
;
4880 struct interface
*zl3vni_map_to_svi_if(zebra_l3vni_t
*zl3vni
)
4882 struct zebra_if
*zif
= NULL
; /* zebra_if for vxlan_if */
4883 struct zebra_l2info_vxlan
*vxl
= NULL
; /* l2 info for vxlan_if */
4888 if (!zl3vni
->vxlan_if
)
4891 zif
= zl3vni
->vxlan_if
->info
;
4895 vxl
= &zif
->l2info
.vxl
;
4897 return zvni_map_to_svi(vxl
->access_vlan
, zif
->brslave_info
.br_if
);
4900 zebra_l3vni_t
*zl3vni_from_vrf(vrf_id_t vrf_id
)
4902 struct zebra_vrf
*zvrf
= NULL
;
4904 zvrf
= zebra_vrf_lookup_by_id(vrf_id
);
4908 return zl3vni_lookup(zvrf
->l3vni
);
4912 * Map SVI and associated bridge to a VNI. This is invoked upon getting
4913 * neighbor notifications, to see if they are of interest.
4915 static zebra_l3vni_t
*zl3vni_from_svi(struct interface
*ifp
,
4916 struct interface
*br_if
)
4920 uint8_t bridge_vlan_aware
= 0;
4921 zebra_l3vni_t
*zl3vni
= NULL
;
4922 struct zebra_ns
*zns
= NULL
;
4923 struct route_node
*rn
= NULL
;
4924 struct zebra_if
*zif
= NULL
;
4925 struct interface
*tmp_if
= NULL
;
4926 struct zebra_l2info_bridge
*br
= NULL
;
4927 struct zebra_l2info_vxlan
*vxl
= NULL
;
4932 /* Make sure the linked interface is a bridge. */
4933 if (!IS_ZEBRA_IF_BRIDGE(br_if
))
4936 /* Determine if bridge is VLAN-aware or not */
4939 br
= &zif
->l2info
.br
;
4940 bridge_vlan_aware
= br
->vlan_aware
;
4941 if (bridge_vlan_aware
) {
4942 struct zebra_l2info_vlan
*vl
;
4944 if (!IS_ZEBRA_IF_VLAN(ifp
))
4949 vl
= &zif
->l2info
.vl
;
4953 /* See if this interface (or interface plus VLAN Id) maps to a VxLAN */
4954 /* TODO: Optimize with a hash. */
4955 zns
= zebra_ns_lookup(NS_DEFAULT
);
4956 for (rn
= route_top(zns
->if_table
); rn
; rn
= route_next(rn
)) {
4957 tmp_if
= (struct interface
*)rn
->info
;
4961 if (!zif
|| zif
->zif_type
!= ZEBRA_IF_VXLAN
)
4963 if (!if_is_operative(tmp_if
))
4965 vxl
= &zif
->l2info
.vxl
;
4967 if (zif
->brslave_info
.br_if
!= br_if
)
4970 if (!bridge_vlan_aware
|| vxl
->access_vlan
== vid
) {
4979 zl3vni
= zl3vni_lookup(vxl
->vni
);
4984 * Inform BGP about l3-vni.
4986 static int zl3vni_send_add_to_client(zebra_l3vni_t
*zl3vni
)
4988 struct stream
*s
= NULL
;
4989 struct zserv
*client
= NULL
;
4990 struct ethaddr rmac
;
4991 char buf
[ETHER_ADDR_STRLEN
];
4993 client
= zserv_find_client(ZEBRA_ROUTE_BGP
, 0);
4994 /* BGP may not be running. */
4999 memset(&rmac
, 0, sizeof(struct ethaddr
));
5000 zl3vni_get_rmac(zl3vni
, &rmac
);
5002 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
5004 zclient_create_header(s
, ZEBRA_L3VNI_ADD
, zl3vni_vrf_id(zl3vni
));
5005 stream_putl(s
, zl3vni
->vni
);
5006 stream_put(s
, &rmac
, sizeof(struct ethaddr
));
5007 stream_put_in_addr(s
, &zl3vni
->local_vtep_ip
);
5008 stream_put(s
, &zl3vni
->filter
, sizeof(int));
5009 stream_putl(s
, zl3vni
->svi_if
->ifindex
);
5011 /* Write packet size. */
5012 stream_putw_at(s
, 0, stream_get_endp(s
));
5014 if (IS_ZEBRA_DEBUG_VXLAN
)
5016 "Send L3_VNI_ADD %u VRF %s RMAC %s local-ip %s filter %s to %s",
5017 zl3vni
->vni
, vrf_id_to_name(zl3vni_vrf_id(zl3vni
)),
5018 prefix_mac2str(&rmac
, buf
, sizeof(buf
)),
5019 inet_ntoa(zl3vni
->local_vtep_ip
),
5020 CHECK_FLAG(zl3vni
->filter
, PREFIX_ROUTES_ONLY
)
5021 ? "prefix-routes-only"
5023 zebra_route_string(client
->proto
));
5025 client
->l3vniadd_cnt
++;
5026 return zserv_send_message(client
, s
);
5030 * Inform BGP about local l3-VNI deletion.
5032 static int zl3vni_send_del_to_client(zebra_l3vni_t
*zl3vni
)
5034 struct stream
*s
= NULL
;
5035 struct zserv
*client
= NULL
;
5037 client
= zserv_find_client(ZEBRA_ROUTE_BGP
, 0);
5038 /* BGP may not be running. */
5042 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
5044 zclient_create_header(s
, ZEBRA_L3VNI_DEL
, zl3vni_vrf_id(zl3vni
));
5045 stream_putl(s
, zl3vni
->vni
);
5047 /* Write packet size. */
5048 stream_putw_at(s
, 0, stream_get_endp(s
));
5050 if (IS_ZEBRA_DEBUG_VXLAN
)
5051 zlog_debug("Send L3_VNI_DEL %u VRF %s to %s", zl3vni
->vni
,
5052 vrf_id_to_name(zl3vni_vrf_id(zl3vni
)),
5053 zebra_route_string(client
->proto
));
5055 client
->l3vnidel_cnt
++;
5056 return zserv_send_message(client
, s
);
5059 static void zebra_vxlan_process_l3vni_oper_up(zebra_l3vni_t
*zl3vni
)
5064 /* send l3vni add to BGP */
5065 zl3vni_send_add_to_client(zl3vni
);
5068 static void zebra_vxlan_process_l3vni_oper_down(zebra_l3vni_t
*zl3vni
)
5073 /* send l3-vni del to BGP*/
5074 zl3vni_send_del_to_client(zl3vni
);
5077 static void zvni_add_to_l3vni_list(struct hash_bucket
*bucket
, void *ctxt
)
5079 zebra_vni_t
*zvni
= (zebra_vni_t
*)bucket
->data
;
5080 zebra_l3vni_t
*zl3vni
= (zebra_l3vni_t
*)ctxt
;
5082 if (zvni
->vrf_id
== zl3vni_vrf_id(zl3vni
))
5083 listnode_add_sort(zl3vni
->l2vnis
, zvni
);
5087 * handle transition of vni from l2 to l3 and vice versa
5089 static int zebra_vxlan_handle_vni_transition(struct zebra_vrf
*zvrf
, vni_t vni
,
5092 zebra_vni_t
*zvni
= NULL
;
5094 /* There is a possibility that VNI notification was already received
5095 * from kernel and we programmed it as L2-VNI
5096 * In such a case we need to delete this L2-VNI first, so
5097 * that it can be reprogrammed as L3-VNI in the system. It is also
5098 * possible that the vrf-vni mapping is removed from FRR while the vxlan
5099 * interface is still present in kernel. In this case to keep it
5100 * symmetric, we will delete the l3-vni and reprogram it as l2-vni
5103 /* Locate hash entry */
5104 zvni
= zvni_lookup(vni
);
5108 if (IS_ZEBRA_DEBUG_VXLAN
)
5109 zlog_debug("Del L2-VNI %u - transition to L3-VNI", vni
);
5111 /* Delete VNI from BGP. */
5112 zvni_send_del_to_client(zvni
->vni
);
5114 /* Free up all neighbors and MAC, if any. */
5115 zvni_neigh_del_all(zvni
, 0, 0, DEL_ALL_NEIGH
);
5116 zvni_mac_del_all(zvni
, 0, 0, DEL_ALL_MAC
);
5118 /* Free up all remote VTEPs, if any. */
5119 zvni_vtep_del_all(zvni
, 0);
5121 /* Delete the hash entry. */
5122 if (zvni_del(zvni
)) {
5123 flog_err(EC_ZEBRA_VNI_DEL_FAILED
,
5124 "Failed to del VNI hash %p, VNI %u", zvni
,
5129 /* TODO_MITESH: This needs to be thought through. We don't have
5130 * enough information at this point to reprogram the vni as
5131 * l2-vni. One way is to store the required info in l3-vni and
5132 * used it solely for this purpose
5139 /* delete and uninstall rmac hash entry */
5140 static void zl3vni_del_rmac_hash_entry(struct hash_bucket
*bucket
, void *ctx
)
5142 zebra_mac_t
*zrmac
= NULL
;
5143 zebra_l3vni_t
*zl3vni
= NULL
;
5145 zrmac
= (zebra_mac_t
*)bucket
->data
;
5146 zl3vni
= (zebra_l3vni_t
*)ctx
;
5147 zl3vni_rmac_uninstall(zl3vni
, zrmac
);
5149 /* Send RMAC for FPM processing */
5150 hook_call(zebra_rmac_update
, zrmac
, zl3vni
, true, "RMAC deleted");
5152 zl3vni_rmac_del(zl3vni
, zrmac
);
5155 /* delete and uninstall nh hash entry */
5156 static void zl3vni_del_nh_hash_entry(struct hash_bucket
*bucket
, void *ctx
)
5158 zebra_neigh_t
*n
= NULL
;
5159 zebra_l3vni_t
*zl3vni
= NULL
;
5161 n
= (zebra_neigh_t
*)bucket
->data
;
5162 zl3vni
= (zebra_l3vni_t
*)ctx
;
5163 zl3vni_nh_uninstall(zl3vni
, n
);
5164 zl3vni_nh_del(zl3vni
, n
);
5167 static int ip_prefix_send_to_client(vrf_id_t vrf_id
, struct prefix
*p
,
5170 struct zserv
*client
= NULL
;
5171 struct stream
*s
= NULL
;
5172 char buf
[PREFIX_STRLEN
];
5174 client
= zserv_find_client(ZEBRA_ROUTE_BGP
, 0);
5175 /* BGP may not be running. */
5179 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
5181 zclient_create_header(s
, cmd
, vrf_id
);
5182 stream_put(s
, p
, sizeof(struct prefix
));
5184 /* Write packet size. */
5185 stream_putw_at(s
, 0, stream_get_endp(s
));
5187 if (IS_ZEBRA_DEBUG_VXLAN
)
5188 zlog_debug("Send ip prefix %s %s on vrf %s",
5189 prefix2str(p
, buf
, sizeof(buf
)),
5190 (cmd
== ZEBRA_IP_PREFIX_ROUTE_ADD
) ? "ADD" : "DEL",
5191 vrf_id_to_name(vrf_id
));
5193 if (cmd
== ZEBRA_IP_PREFIX_ROUTE_ADD
)
5194 client
->prefixadd_cnt
++;
5196 client
->prefixdel_cnt
++;
5198 return zserv_send_message(client
, s
);
5201 /* re-add remote rmac if needed */
5202 static int zebra_vxlan_readd_remote_rmac(zebra_l3vni_t
*zl3vni
,
5203 struct ethaddr
*rmac
)
5205 char buf
[ETHER_ADDR_STRLEN
];
5206 zebra_mac_t
*zrmac
= NULL
;
5208 zrmac
= zl3vni_rmac_lookup(zl3vni
, rmac
);
5212 if (IS_ZEBRA_DEBUG_VXLAN
)
5213 zlog_debug("Del remote RMAC %s L3VNI %u - readd",
5214 prefix_mac2str(rmac
, buf
, sizeof(buf
)), zl3vni
->vni
);
5216 zl3vni_rmac_install(zl3vni
, zrmac
);
5220 /* Process a remote MACIP add from BGP. */
5221 static void process_remote_macip_add(vni_t vni
,
5222 struct ethaddr
*macaddr
,
5224 struct ipaddr
*ipaddr
,
5227 struct in_addr vtep_ip
)
5230 zebra_vtep_t
*zvtep
;
5231 zebra_mac_t
*mac
= NULL
, *old_mac
= NULL
;
5232 zebra_neigh_t
*n
= NULL
;
5233 int update_mac
= 0, update_neigh
= 0;
5234 char buf
[ETHER_ADDR_STRLEN
];
5235 char buf1
[INET6_ADDRSTRLEN
];
5236 struct interface
*ifp
= NULL
;
5237 struct zebra_if
*zif
= NULL
;
5238 struct zebra_vrf
*zvrf
;
5243 bool do_dad
= false;
5244 bool is_dup_detect
= false;
5246 /* Locate VNI hash entry - expected to exist. */
5247 zvni
= zvni_lookup(vni
);
5249 zlog_warn("Unknown VNI %u upon remote MACIP ADD", vni
);
5253 ifp
= zvni
->vxlan_if
;
5257 !if_is_operative(ifp
) ||
5259 !zif
->brslave_info
.br_if
) {
5260 zlog_warn("Ignoring remote MACIP ADD VNI %u, invalid interface state or info",
5265 /* The remote VTEP specified should normally exist, but it is
5266 * possible that when peering comes up, peer may advertise MACIP
5267 * routes before advertising type-3 routes.
5269 zvtep
= zvni_vtep_find(zvni
, &vtep_ip
);
5271 zvtep
= zvni_vtep_add(zvni
, &vtep_ip
, VXLAN_FLOOD_DISABLED
);
5274 EC_ZEBRA_VTEP_ADD_FAILED
,
5275 "Failed to add remote VTEP, VNI %u zvni %p upon remote MACIP ADD",
5280 zvni_vtep_install(zvni
, zvtep
);
5283 sticky
= !!CHECK_FLAG(flags
, ZEBRA_MACIP_TYPE_STICKY
);
5284 remote_gw
= !!CHECK_FLAG(flags
, ZEBRA_MACIP_TYPE_GW
);
5285 is_router
= !!CHECK_FLAG(flags
, ZEBRA_MACIP_TYPE_ROUTER_FLAG
);
5287 mac
= zvni_mac_lookup(zvni
, macaddr
);
5289 /* Ignore if the mac is already present as a gateway mac */
5291 CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DEF_GW
) &&
5292 CHECK_FLAG(flags
, ZEBRA_MACIP_TYPE_GW
)) {
5293 if (IS_ZEBRA_DEBUG_VXLAN
)
5294 zlog_debug("Ignore remote MACIP ADD VNI %u MAC %s%s%s as MAC is already configured as gateway MAC",
5296 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
5297 ipa_len
? " IP " : "",
5299 ipaddr2str(ipaddr
, buf1
, sizeof(buf1
)) : "");
5303 zvrf
= vrf_info_lookup(zvni
->vxlan_if
->vrf_id
);
5307 /* check if the remote MAC is unknown or has a change.
5308 * If so, that needs to be updated first. Note that client could
5309 * install MAC and MACIP separately or just install the latter.
5312 || !CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
)
5313 || sticky
!= !!CHECK_FLAG(mac
->flags
, ZEBRA_MAC_STICKY
)
5314 || remote_gw
!= !!CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE_DEF_GW
)
5315 || !IPV4_ADDR_SAME(&mac
->fwd_info
.r_vtep_ip
, &vtep_ip
)
5316 || seq
!= mac
->rem_seq
)
5321 mac
= zvni_mac_add(zvni
, macaddr
);
5324 "Failed to add MAC %s VNI %u Remote VTEP %s",
5325 prefix_mac2str(macaddr
, buf
,
5327 vni
, inet_ntoa(vtep_ip
));
5331 /* Is this MAC created for a MACIP? */
5333 SET_FLAG(mac
->flags
, ZEBRA_MAC_AUTO
);
5335 const char *mac_type
;
5337 /* When host moves but changes its (MAC,IP)
5338 * binding, BGP may install a MACIP entry that
5339 * corresponds to "older" location of the host
5340 * in transient situations (because {IP1,M1}
5341 * is a different route from {IP1,M2}). Check
5342 * the sequence number and ignore this update
5345 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
)) {
5346 tmp_seq
= mac
->loc_seq
;
5349 tmp_seq
= mac
->rem_seq
;
5350 mac_type
= "remote";
5352 if (seq
< tmp_seq
) {
5353 if (IS_ZEBRA_DEBUG_VXLAN
)
5354 zlog_debug("Ignore remote MACIP ADD VNI %u MAC %s%s%s as existing %s MAC has higher seq %u",
5356 prefix_mac2str(macaddr
,
5358 ipa_len
? " IP " : "",
5361 buf1
, sizeof(buf1
)) : "",
5368 /* Check MAC's curent state is local (this is the case
5369 * where MAC has moved from L->R) and check previous
5370 * detection started via local learning.
5371 * RFC-7432: A PE/VTEP that detects a MAC mobility
5372 * event via local learning starts an M-second timer.
5374 * VTEP-IP or seq. change alone is not considered
5375 * for dup. detection.
5377 * MAC is already marked duplicate set dad, then
5378 * is_dup_detect will be set to not install the entry.
5380 if ((!CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
) &&
5382 CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
))
5385 /* Remove local MAC from BGP. */
5386 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
))
5387 zvni_mac_send_del_to_client(zvni
->vni
, macaddr
);
5389 /* Set "auto" and "remote" forwarding info. */
5390 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
);
5391 memset(&mac
->fwd_info
, 0, sizeof(mac
->fwd_info
));
5392 SET_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
);
5393 mac
->fwd_info
.r_vtep_ip
= vtep_ip
;
5396 SET_FLAG(mac
->flags
, ZEBRA_MAC_STICKY
);
5398 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_STICKY
);
5401 SET_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE_DEF_GW
);
5403 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE_DEF_GW
);
5405 zebra_vxlan_dup_addr_detect_for_mac(zvrf
, mac
,
5406 mac
->fwd_info
.r_vtep_ip
,
5407 do_dad
, &is_dup_detect
,
5410 if (!is_dup_detect
) {
5411 zvni_process_neigh_on_remote_mac_add(zvni
, mac
);
5412 /* Install the entry. */
5413 zvni_mac_install(zvni
, mac
);
5417 /* Update seq number. */
5420 /* If there is no IP, return after clearing AUTO flag of MAC. */
5422 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_AUTO
);
5429 /* Check if the remote neighbor itself is unknown or has a
5430 * change. If so, create or update and then install the entry.
5432 n
= zvni_neigh_lookup(zvni
, ipaddr
);
5434 || !CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
)
5435 || is_router
!= !!CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_ROUTER_FLAG
)
5436 || (memcmp(&n
->emac
, macaddr
, sizeof(*macaddr
)) != 0)
5437 || !IPV4_ADDR_SAME(&n
->r_vtep_ip
, &vtep_ip
)
5438 || seq
!= n
->rem_seq
)
5443 n
= zvni_neigh_add(zvni
, ipaddr
, macaddr
);
5446 "Failed to add Neigh %s MAC %s VNI %u Remote VTEP %s",
5447 ipaddr2str(ipaddr
, buf1
,
5449 prefix_mac2str(macaddr
, buf
,
5451 vni
, inet_ntoa(vtep_ip
));
5458 /* When host moves but changes its (MAC,IP)
5459 * binding, BGP may install a MACIP entry that
5460 * corresponds to "older" location of the host
5461 * in transient situations (because {IP1,M1}
5462 * is a different route from {IP1,M2}). Check
5463 * the sequence number and ignore this update
5466 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
)) {
5467 tmp_seq
= n
->loc_seq
;
5470 tmp_seq
= n
->rem_seq
;
5473 if (seq
< tmp_seq
) {
5474 if (IS_ZEBRA_DEBUG_VXLAN
)
5475 zlog_debug("Ignore remote MACIP ADD VNI %u MAC %s%s%s as existing %s Neigh has higher seq %u",
5477 prefix_mac2str(macaddr
,
5480 ipaddr2str(ipaddr
, buf1
, sizeof(buf1
)),
5485 if (memcmp(&n
->emac
, macaddr
, sizeof(*macaddr
)) != 0) {
5486 /* MAC change, send a delete for old
5487 * neigh if learnt locally.
5489 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
) &&
5490 IS_ZEBRA_NEIGH_ACTIVE(n
))
5491 zvni_neigh_send_del_to_client(
5493 &n
->emac
, 0, n
->state
);
5495 /* update neigh list for macs */
5496 old_mac
= zvni_mac_lookup(zvni
, &n
->emac
);
5498 listnode_delete(old_mac
->neigh_list
, n
);
5499 zvni_deref_ip2mac(zvni
, old_mac
);
5501 listnode_add_sort(mac
->neigh_list
, n
);
5502 memcpy(&n
->emac
, macaddr
, ETH_ALEN
);
5504 /* Check Neigh's curent state is local
5505 * (this is the case where neigh/host has moved
5506 * from L->R) and check previous detction
5507 * started via local learning.
5509 * RFC-7432: A PE/VTEP that detects a MAC
5510 * mobilit event via local learning starts
5511 * an M-second timer.
5512 * VTEP-IP or seq. change along is not
5513 * considered for dup. detection.
5515 * Mobilty event scenario-B IP-MAC binding
5518 if ((!CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
))
5525 /* Set "remote" forwarding info. */
5526 UNSET_FLAG(n
->flags
, ZEBRA_NEIGH_LOCAL
);
5527 n
->r_vtep_ip
= vtep_ip
;
5528 SET_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
);
5530 /* Set router flag (R-bit) to this Neighbor entry */
5531 if (CHECK_FLAG(flags
, ZEBRA_MACIP_TYPE_ROUTER_FLAG
))
5532 SET_FLAG(n
->flags
, ZEBRA_NEIGH_ROUTER_FLAG
);
5534 UNSET_FLAG(n
->flags
, ZEBRA_NEIGH_ROUTER_FLAG
);
5536 /* Check old or new MAC detected as duplicate,
5537 * inherit duplicate flag to this neigh.
5539 if (zebra_vxlan_ip_inherit_dad_from_mac(zvrf
, old_mac
,
5541 flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED
,
5542 "VNI %u: MAC %s IP %s detected as duplicate during remote update, inherit duplicate from MAC",
5544 prefix_mac2str(&mac
->macaddr
, buf
, sizeof(buf
)),
5545 ipaddr2str(&n
->ip
, buf1
, sizeof(buf1
)));
5548 /* Check duplicate address detection for IP */
5549 zebra_vxlan_dup_addr_detect_for_neigh(zvrf
, n
,
5554 /* Install the entry. */
5556 zvni_neigh_install(zvni
, n
);
5559 zvni_probe_neigh_on_mac_add(zvni
, mac
);
5561 /* Update seq number. */
5565 /* Process a remote MACIP delete from BGP. */
5566 static void process_remote_macip_del(vni_t vni
,
5567 struct ethaddr
*macaddr
,
5569 struct ipaddr
*ipaddr
,
5570 struct in_addr vtep_ip
)
5573 zebra_mac_t
*mac
= NULL
;
5574 zebra_neigh_t
*n
= NULL
;
5575 struct interface
*ifp
= NULL
;
5576 struct zebra_if
*zif
= NULL
;
5577 struct zebra_ns
*zns
;
5578 struct zebra_l2info_vxlan
*vxl
;
5579 struct zebra_vrf
*zvrf
;
5580 char buf
[ETHER_ADDR_STRLEN
];
5581 char buf1
[INET6_ADDRSTRLEN
];
5583 /* Locate VNI hash entry - expected to exist. */
5584 zvni
= zvni_lookup(vni
);
5586 if (IS_ZEBRA_DEBUG_VXLAN
)
5587 zlog_debug("Unknown VNI %u upon remote MACIP DEL", vni
);
5591 ifp
= zvni
->vxlan_if
;
5595 !if_is_operative(ifp
) ||
5597 !zif
->brslave_info
.br_if
) {
5598 if (IS_ZEBRA_DEBUG_VXLAN
)
5599 zlog_debug("Ignoring remote MACIP DEL VNI %u, invalid interface state or info",
5603 zns
= zebra_ns_lookup(NS_DEFAULT
);
5604 vxl
= &zif
->l2info
.vxl
;
5606 /* The remote VTEP specified is normally expected to exist, but
5607 * it is possible that the peer may delete the VTEP before deleting
5608 * any MACs referring to the VTEP, in which case the handler (see
5609 * remote_vtep_del) would have already deleted the MACs.
5611 if (!zvni_vtep_find(zvni
, &vtep_ip
))
5614 mac
= zvni_mac_lookup(zvni
, macaddr
);
5616 n
= zvni_neigh_lookup(zvni
, ipaddr
);
5619 zlog_warn("Failed to locate MAC %s for neigh %s VNI %u upon remote MACIP DEL",
5620 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
5621 ipaddr2str(ipaddr
, buf1
, sizeof(buf1
)), vni
);
5625 /* If the remote mac or neighbor doesn't exist there is nothing
5626 * more to do. Otherwise, uninstall the entry and then remove it.
5631 zvrf
= vrf_info_lookup(zvni
->vxlan_if
->vrf_id
);
5633 /* Ignore the delete if this mac is a gateway mac-ip */
5634 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
)
5635 && CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DEF_GW
)) {
5637 "Ignore remote MACIP DEL VNI %u MAC %s%s%s as MAC is already configured as gateway MAC",
5639 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
5640 ipa_len
? " IP " : "",
5642 ipaddr2str(ipaddr
, buf1
, sizeof(buf1
)) : "");
5646 /* Uninstall remote neighbor or MAC. */
5648 if (zvrf
->dad_freeze
&&
5649 CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_DUPLICATE
) &&
5650 CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
) &&
5651 (memcmp(n
->emac
.octet
, macaddr
->octet
, ETH_ALEN
) == 0)) {
5652 struct interface
*vlan_if
;
5654 vlan_if
= zvni_map_to_svi(vxl
->access_vlan
,
5655 zif
->brslave_info
.br_if
);
5656 if (IS_ZEBRA_DEBUG_VXLAN
)
5657 zlog_debug("%s: IP %s (flags 0x%x intf %s) is remote and duplicate, read kernel for local entry",
5658 __PRETTY_FUNCTION__
,
5659 ipaddr2str(ipaddr
, buf1
,
5660 sizeof(buf1
)), n
->flags
,
5662 neigh_read_specific_ip(ipaddr
, vlan_if
);
5665 /* When the MAC changes for an IP, it is possible the
5666 * client may update the new MAC before trying to delete the
5667 * "old" neighbor (as these are two different MACIP routes).
5668 * Do the delete only if the MAC matches.
5670 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
)
5671 && (memcmp(n
->emac
.octet
, macaddr
->octet
, ETH_ALEN
) == 0)) {
5672 zvni_neigh_uninstall(zvni
, n
);
5673 zvni_neigh_del(zvni
, n
);
5674 zvni_deref_ip2mac(zvni
, mac
);
5677 /* DAD: when MAC is freeze state as remote learn event,
5678 * remote mac-ip delete event is received will result in freeze
5679 * entry removal, first fetch kernel for the same entry present
5680 * as LOCAL and reachable, avoid deleting this entry instead
5681 * use kerenel local entry to update during unfreeze time.
5683 if (zvrf
->dad_freeze
&&
5684 CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
) &&
5685 CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
)) {
5686 if (IS_ZEBRA_DEBUG_VXLAN
)
5687 zlog_debug("%s: MAC %s (flags 0x%x) is remote and duplicate, read kernel for local entry",
5688 __PRETTY_FUNCTION__
,
5689 prefix_mac2str(macaddr
, buf
,
5692 macfdb_read_specific_mac(zns
, zif
->brslave_info
.br_if
,
5693 macaddr
, vxl
->access_vlan
);
5696 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
)) {
5697 zvni_process_neigh_on_remote_mac_del(zvni
, mac
);
5699 * the remote sequence number in the auto mac entry
5700 * needs to be reset to 0 as the mac entry may have
5701 * been removed on all VTEPs (including
5702 * the originating one)
5706 /* If all remote neighbors referencing a remote MAC
5707 * go away, we need to uninstall the MAC.
5709 if (remote_neigh_count(mac
) == 0) {
5710 zvni_mac_uninstall(zvni
, mac
);
5711 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
);
5713 if (list_isempty(mac
->neigh_list
))
5714 zvni_mac_del(zvni
, mac
);
5716 SET_FLAG(mac
->flags
, ZEBRA_MAC_AUTO
);
5722 /* Public functions */
5724 int is_l3vni_for_prefix_routes_only(vni_t vni
)
5726 zebra_l3vni_t
*zl3vni
= NULL
;
5728 zl3vni
= zl3vni_lookup(vni
);
5732 return CHECK_FLAG(zl3vni
->filter
, PREFIX_ROUTES_ONLY
) ? 1 : 0;
5735 /* handle evpn route in vrf table */
5736 void zebra_vxlan_evpn_vrf_route_add(vrf_id_t vrf_id
, struct ethaddr
*rmac
,
5737 struct ipaddr
*vtep_ip
,
5738 struct prefix
*host_prefix
)
5740 zebra_l3vni_t
*zl3vni
= NULL
;
5741 struct ipaddr ipv4_vtep
;
5743 zl3vni
= zl3vni_from_vrf(vrf_id
);
5744 if (!zl3vni
|| !is_l3vni_oper_up(zl3vni
))
5748 * add the next hop neighbor -
5749 * neigh to be installed is the ipv6 nexthop neigh
5751 zl3vni_remote_nh_add(zl3vni
, vtep_ip
, rmac
, host_prefix
);
5754 * if the remote vtep is a ipv4 mapped ipv6 address convert it to ipv4
5755 * address. Rmac is programmed against the ipv4 vtep because we only
5756 * support ipv4 tunnels in the h/w right now
5758 memset(&ipv4_vtep
, 0, sizeof(struct ipaddr
));
5759 ipv4_vtep
.ipa_type
= IPADDR_V4
;
5760 if (vtep_ip
->ipa_type
== IPADDR_V6
)
5761 ipv4_mapped_ipv6_to_ipv4(&vtep_ip
->ipaddr_v6
,
5762 &(ipv4_vtep
.ipaddr_v4
));
5764 memcpy(&(ipv4_vtep
.ipaddr_v4
), &vtep_ip
->ipaddr_v4
,
5765 sizeof(struct in_addr
));
5768 * add the rmac - remote rmac to be installed is against the ipv4
5771 zl3vni_remote_rmac_add(zl3vni
, rmac
, &ipv4_vtep
, host_prefix
);
5774 /* handle evpn vrf route delete */
5775 void zebra_vxlan_evpn_vrf_route_del(vrf_id_t vrf_id
,
5776 struct ipaddr
*vtep_ip
,
5777 struct prefix
*host_prefix
)
5779 zebra_l3vni_t
*zl3vni
= NULL
;
5780 zebra_neigh_t
*nh
= NULL
;
5781 zebra_mac_t
*zrmac
= NULL
;
5783 zl3vni
= zl3vni_from_vrf(vrf_id
);
5787 /* find the next hop entry and rmac entry */
5788 nh
= zl3vni_nh_lookup(zl3vni
, vtep_ip
);
5791 zrmac
= zl3vni_rmac_lookup(zl3vni
, &nh
->emac
);
5793 /* delete the next hop entry */
5794 zl3vni_remote_nh_del(zl3vni
, nh
, host_prefix
);
5796 /* delete the rmac entry */
5798 zl3vni_remote_rmac_del(zl3vni
, zrmac
, host_prefix
);
5802 void zebra_vxlan_print_specific_rmac_l3vni(struct vty
*vty
, vni_t l3vni
,
5803 struct ethaddr
*rmac
, bool use_json
)
5805 zebra_l3vni_t
*zl3vni
= NULL
;
5806 zebra_mac_t
*zrmac
= NULL
;
5807 json_object
*json
= NULL
;
5809 if (!is_evpn_enabled()) {
5811 vty_out(vty
, "{}\n");
5816 json
= json_object_new_object();
5818 zl3vni
= zl3vni_lookup(l3vni
);
5821 vty_out(vty
, "{}\n");
5823 vty_out(vty
, "%% L3-VNI %u doesn't exist\n", l3vni
);
5827 zrmac
= zl3vni_rmac_lookup(zl3vni
, rmac
);
5830 vty_out(vty
, "{}\n");
5833 "%% Requested RMAC doesn't exist in L3-VNI %u",
5838 zl3vni_print_rmac(zrmac
, vty
, json
);
5841 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
5842 json
, JSON_C_TO_STRING_PRETTY
));
5843 json_object_free(json
);
5847 void zebra_vxlan_print_rmacs_l3vni(struct vty
*vty
, vni_t l3vni
, bool use_json
)
5849 zebra_l3vni_t
*zl3vni
;
5851 struct rmac_walk_ctx wctx
;
5852 json_object
*json
= NULL
;
5854 if (!is_evpn_enabled())
5857 zl3vni
= zl3vni_lookup(l3vni
);
5860 vty_out(vty
, "{}\n");
5862 vty_out(vty
, "%% L3-VNI %u does not exist\n", l3vni
);
5865 num_rmacs
= hashcount(zl3vni
->rmac_table
);
5870 json
= json_object_new_object();
5872 memset(&wctx
, 0, sizeof(struct rmac_walk_ctx
));
5876 vty_out(vty
, "Number of Remote RMACs known for this VNI: %u\n",
5878 vty_out(vty
, "%-17s %-21s\n", "MAC", "Remote VTEP");
5880 json_object_int_add(json
, "numRmacs", num_rmacs
);
5882 hash_iterate(zl3vni
->rmac_table
, zl3vni_print_rmac_hash
, &wctx
);
5885 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
5886 json
, JSON_C_TO_STRING_PRETTY
));
5887 json_object_free(json
);
5891 void zebra_vxlan_print_rmacs_all_l3vni(struct vty
*vty
, bool use_json
)
5893 json_object
*json
= NULL
;
5896 if (!is_evpn_enabled()) {
5898 vty_out(vty
, "{}\n");
5903 json
= json_object_new_object();
5907 hash_iterate(zrouter
.l3vni_table
,
5908 (void (*)(struct hash_bucket
*,
5909 void *))zl3vni_print_rmac_hash_all_vni
,
5913 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
5914 json
, JSON_C_TO_STRING_PRETTY
));
5915 json_object_free(json
);
5919 void zebra_vxlan_print_specific_nh_l3vni(struct vty
*vty
, vni_t l3vni
,
5920 struct ipaddr
*ip
, bool use_json
)
5922 zebra_l3vni_t
*zl3vni
= NULL
;
5923 zebra_neigh_t
*n
= NULL
;
5924 json_object
*json
= NULL
;
5926 if (!is_evpn_enabled()) {
5928 vty_out(vty
, "{}\n");
5933 json
= json_object_new_object();
5935 zl3vni
= zl3vni_lookup(l3vni
);
5938 vty_out(vty
, "{}\n");
5940 vty_out(vty
, "%% L3-VNI %u does not exist\n", l3vni
);
5944 n
= zl3vni_nh_lookup(zl3vni
, ip
);
5947 vty_out(vty
, "{}\n");
5950 "%% Requested next-hop not present for L3-VNI %u",
5955 zl3vni_print_nh(n
, vty
, json
);
5958 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
5959 json
, JSON_C_TO_STRING_PRETTY
));
5960 json_object_free(json
);
5964 void zebra_vxlan_print_nh_l3vni(struct vty
*vty
, vni_t l3vni
, bool use_json
)
5967 struct nh_walk_ctx wctx
;
5968 json_object
*json
= NULL
;
5969 zebra_l3vni_t
*zl3vni
= NULL
;
5971 if (!is_evpn_enabled())
5974 zl3vni
= zl3vni_lookup(l3vni
);
5977 vty_out(vty
, "{}\n");
5979 vty_out(vty
, "%% L3-VNI %u does not exist\n", l3vni
);
5983 num_nh
= hashcount(zl3vni
->nh_table
);
5988 json
= json_object_new_object();
5993 vty_out(vty
, "Number of NH Neighbors known for this VNI: %u\n",
5995 vty_out(vty
, "%-15s %-17s\n", "IP", "RMAC");
5997 json_object_int_add(json
, "numNextHops", num_nh
);
5999 hash_iterate(zl3vni
->nh_table
, zl3vni_print_nh_hash
, &wctx
);
6002 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6003 json
, JSON_C_TO_STRING_PRETTY
));
6004 json_object_free(json
);
6008 void zebra_vxlan_print_nh_all_l3vni(struct vty
*vty
, bool use_json
)
6010 json_object
*json
= NULL
;
6013 if (!is_evpn_enabled()) {
6015 vty_out(vty
, "{}\n");
6020 json
= json_object_new_object();
6024 hash_iterate(zrouter
.l3vni_table
,
6025 (void (*)(struct hash_bucket
*,
6026 void *))zl3vni_print_nh_hash_all_vni
,
6030 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6031 json
, JSON_C_TO_STRING_PRETTY
));
6032 json_object_free(json
);
6037 * Display L3 VNI information (VTY command handler).
6039 void zebra_vxlan_print_l3vni(struct vty
*vty
, vni_t vni
, bool use_json
)
6042 json_object
*json
= NULL
;
6043 zebra_l3vni_t
*zl3vni
= NULL
;
6045 if (!is_evpn_enabled()) {
6047 vty_out(vty
, "{}\n");
6051 zl3vni
= zl3vni_lookup(vni
);
6054 vty_out(vty
, "{}\n");
6056 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
6061 json
= json_object_new_object();
6065 zl3vni_print(zl3vni
, (void *)args
);
6068 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6069 json
, JSON_C_TO_STRING_PRETTY
));
6070 json_object_free(json
);
6074 void zebra_vxlan_print_vrf_vni(struct vty
*vty
, struct zebra_vrf
*zvrf
,
6075 json_object
*json_vrfs
)
6077 char buf
[ETHER_ADDR_STRLEN
];
6078 zebra_l3vni_t
*zl3vni
= NULL
;
6080 zl3vni
= zl3vni_lookup(zvrf
->l3vni
);
6085 vty_out(vty
, "%-37s %-10u %-20s %-20s %-5s %-18s\n",
6086 zvrf_name(zvrf
), zl3vni
->vni
,
6087 zl3vni_vxlan_if_name(zl3vni
),
6088 zl3vni_svi_if_name(zl3vni
), zl3vni_state2str(zl3vni
),
6089 zl3vni_rmac2str(zl3vni
, buf
, sizeof(buf
)));
6091 json_object
*json_vrf
= NULL
;
6093 json_vrf
= json_object_new_object();
6094 json_object_string_add(json_vrf
, "vrf", zvrf_name(zvrf
));
6095 json_object_int_add(json_vrf
, "vni", zl3vni
->vni
);
6096 json_object_string_add(json_vrf
, "vxlanIntf",
6097 zl3vni_vxlan_if_name(zl3vni
));
6098 json_object_string_add(json_vrf
, "sviIntf",
6099 zl3vni_svi_if_name(zl3vni
));
6100 json_object_string_add(json_vrf
, "state",
6101 zl3vni_state2str(zl3vni
));
6102 json_object_string_add(
6103 json_vrf
, "routerMac",
6104 zl3vni_rmac2str(zl3vni
, buf
, sizeof(buf
)));
6105 json_object_array_add(json_vrfs
, json_vrf
);
6110 * Display Neighbors for a VNI (VTY command handler).
6112 void zebra_vxlan_print_neigh_vni(struct vty
*vty
, struct zebra_vrf
*zvrf
,
6113 vni_t vni
, bool use_json
)
6117 struct neigh_walk_ctx wctx
;
6118 json_object
*json
= NULL
;
6120 if (!is_evpn_enabled())
6122 zvni
= zvni_lookup(vni
);
6125 vty_out(vty
, "{}\n");
6127 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
6130 num_neigh
= hashcount(zvni
->neigh_table
);
6135 json
= json_object_new_object();
6137 /* Since we have IPv6 addresses to deal with which can vary widely in
6138 * size, we try to be a bit more elegant in display by first computing
6139 * the maximum width.
6141 memset(&wctx
, 0, sizeof(struct neigh_walk_ctx
));
6144 wctx
.addr_width
= 15;
6146 hash_iterate(zvni
->neigh_table
, zvni_find_neigh_addr_width
, &wctx
);
6150 "Number of ARPs (local and remote) known for this VNI: %u\n",
6152 vty_out(vty
, "%*s %-6s %-8s %-17s %-21s %s\n", -wctx
.addr_width
,
6153 "IP", "Type", "State", "MAC", "Remote VTEP", "Seq #'s");
6155 json_object_int_add(json
, "numArpNd", num_neigh
);
6157 hash_iterate(zvni
->neigh_table
, zvni_print_neigh_hash
, &wctx
);
6159 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6160 json
, JSON_C_TO_STRING_PRETTY
));
6161 json_object_free(json
);
6166 * Display neighbors across all VNIs (VTY command handler).
6168 void zebra_vxlan_print_neigh_all_vni(struct vty
*vty
, struct zebra_vrf
*zvrf
,
6169 bool print_dup
, bool use_json
)
6171 json_object
*json
= NULL
;
6174 if (!is_evpn_enabled())
6178 json
= json_object_new_object();
6182 args
[2] = (void *)(ptrdiff_t)print_dup
;
6184 hash_iterate(zvrf
->vni_table
,
6185 (void (*)(struct hash_bucket
*,
6186 void *))zvni_print_neigh_hash_all_vni
,
6189 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6190 json
, JSON_C_TO_STRING_PRETTY
));
6191 json_object_free(json
);
6196 * Display neighbors across all VNIs in detail(VTY command handler).
6198 void zebra_vxlan_print_neigh_all_vni_detail(struct vty
*vty
,
6199 struct zebra_vrf
*zvrf
,
6200 bool print_dup
, bool use_json
)
6202 json_object
*json
= NULL
;
6205 if (!is_evpn_enabled())
6209 json
= json_object_new_object();
6213 args
[2] = (void *)(ptrdiff_t)print_dup
;
6215 hash_iterate(zvrf
->vni_table
,
6216 (void (*)(struct hash_bucket
*,
6217 void *))zvni_print_neigh_hash_all_vni_detail
,
6220 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6221 json
, JSON_C_TO_STRING_PRETTY
));
6222 json_object_free(json
);
6227 * Display specific neighbor for a VNI, if present (VTY command handler).
6229 void zebra_vxlan_print_specific_neigh_vni(struct vty
*vty
,
6230 struct zebra_vrf
*zvrf
, vni_t vni
,
6231 struct ipaddr
*ip
, bool use_json
)
6235 json_object
*json
= NULL
;
6237 if (!is_evpn_enabled())
6239 zvni
= zvni_lookup(vni
);
6242 vty_out(vty
, "{}\n");
6244 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
6247 n
= zvni_neigh_lookup(zvni
, ip
);
6251 "%% Requested neighbor does not exist in VNI %u\n",
6256 json
= json_object_new_object();
6258 zvni_print_neigh(n
, vty
, json
);
6261 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6262 json
, JSON_C_TO_STRING_PRETTY
));
6263 json_object_free(json
);
6268 * Display neighbors for a VNI from specific VTEP (VTY command handler).
6269 * By definition, these are remote neighbors.
6271 void zebra_vxlan_print_neigh_vni_vtep(struct vty
*vty
, struct zebra_vrf
*zvrf
,
6272 vni_t vni
, struct in_addr vtep_ip
,
6277 struct neigh_walk_ctx wctx
;
6278 json_object
*json
= NULL
;
6280 if (!is_evpn_enabled())
6282 zvni
= zvni_lookup(vni
);
6285 vty_out(vty
, "{}\n");
6287 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
6290 num_neigh
= hashcount(zvni
->neigh_table
);
6294 memset(&wctx
, 0, sizeof(struct neigh_walk_ctx
));
6297 wctx
.addr_width
= 15;
6298 wctx
.flags
= SHOW_REMOTE_NEIGH_FROM_VTEP
;
6299 wctx
.r_vtep_ip
= vtep_ip
;
6301 hash_iterate(zvni
->neigh_table
, zvni_find_neigh_addr_width
, &wctx
);
6302 hash_iterate(zvni
->neigh_table
, zvni_print_neigh_hash
, &wctx
);
6305 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6306 json
, JSON_C_TO_STRING_PRETTY
));
6307 json_object_free(json
);
6312 * Display Duplicate detected Neighbors for a VNI
6313 * (VTY command handler).
6315 void zebra_vxlan_print_neigh_vni_dad(struct vty
*vty
,
6316 struct zebra_vrf
*zvrf
,
6322 struct neigh_walk_ctx wctx
;
6323 json_object
*json
= NULL
;
6325 if (!is_evpn_enabled())
6328 zvni
= zvni_lookup(vni
);
6330 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
6334 num_neigh
= hashcount(zvni
->neigh_table
);
6338 num_neigh
= num_dup_detected_neighs(zvni
);
6343 json
= json_object_new_object();
6345 /* Since we have IPv6 addresses to deal with which can vary widely in
6346 * size, we try to be a bit more elegant in display by first computing
6347 * the maximum width.
6349 memset(&wctx
, 0, sizeof(struct neigh_walk_ctx
));
6352 wctx
.addr_width
= 15;
6354 hash_iterate(zvni
->neigh_table
, zvni_find_neigh_addr_width
, &wctx
);
6358 "Number of ARPs (local and remote) known for this VNI: %u\n",
6360 vty_out(vty
, "%*s %-6s %-8s %-17s %-21s\n",
6361 -wctx
.addr_width
, "IP", "Type",
6362 "State", "MAC", "Remote VTEP");
6364 json_object_int_add(json
, "numArpNd", num_neigh
);
6366 hash_iterate(zvni
->neigh_table
, zvni_print_dad_neigh_hash
, &wctx
);
6369 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6370 json
, JSON_C_TO_STRING_PRETTY
));
6371 json_object_free(json
);
6376 * Display MACs for a VNI (VTY command handler).
6378 void zebra_vxlan_print_macs_vni(struct vty
*vty
, struct zebra_vrf
*zvrf
,
6379 vni_t vni
, bool use_json
)
6383 struct mac_walk_ctx wctx
;
6384 json_object
*json
= NULL
;
6385 json_object
*json_mac
= NULL
;
6387 if (!is_evpn_enabled())
6389 zvni
= zvni_lookup(vni
);
6392 vty_out(vty
, "{}\n");
6394 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
6397 num_macs
= num_valid_macs(zvni
);
6402 json
= json_object_new_object();
6403 json_mac
= json_object_new_object();
6406 memset(&wctx
, 0, sizeof(struct mac_walk_ctx
));
6409 wctx
.json
= json_mac
;
6413 "Number of MACs (local and remote) known for this VNI: %u\n",
6415 vty_out(vty
, "%-17s %-6s %-21s %-5s %s\n", "MAC", "Type",
6416 "Intf/Remote VTEP", "VLAN", "Seq #'s");
6418 json_object_int_add(json
, "numMacs", num_macs
);
6420 hash_iterate(zvni
->mac_table
, zvni_print_mac_hash
, &wctx
);
6423 json_object_object_add(json
, "macs", json_mac
);
6424 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6425 json
, JSON_C_TO_STRING_PRETTY
));
6426 json_object_free(json
);
6431 * Display MACs for all VNIs (VTY command handler).
6433 void zebra_vxlan_print_macs_all_vni(struct vty
*vty
, struct zebra_vrf
*zvrf
,
6434 bool print_dup
, bool use_json
)
6436 struct mac_walk_ctx wctx
;
6437 json_object
*json
= NULL
;
6439 if (!is_evpn_enabled()) {
6441 vty_out(vty
, "{}\n");
6445 json
= json_object_new_object();
6447 memset(&wctx
, 0, sizeof(struct mac_walk_ctx
));
6450 wctx
.print_dup
= print_dup
;
6451 hash_iterate(zvrf
->vni_table
, zvni_print_mac_hash_all_vni
, &wctx
);
6454 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6455 json
, JSON_C_TO_STRING_PRETTY
));
6456 json_object_free(json
);
6461 * Display MACs in detail for all VNIs (VTY command handler).
6463 void zebra_vxlan_print_macs_all_vni_detail(struct vty
*vty
,
6464 struct zebra_vrf
*zvrf
,
6465 bool print_dup
, bool use_json
)
6467 struct mac_walk_ctx wctx
;
6468 json_object
*json
= NULL
;
6470 if (!is_evpn_enabled()) {
6472 vty_out(vty
, "{}\n");
6476 json
= json_object_new_object();
6478 memset(&wctx
, 0, sizeof(struct mac_walk_ctx
));
6481 wctx
.print_dup
= print_dup
;
6482 hash_iterate(zvrf
->vni_table
, zvni_print_mac_hash_all_vni_detail
,
6486 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6487 json
, JSON_C_TO_STRING_PRETTY
));
6488 json_object_free(json
);
6493 * Display MACs for all VNIs (VTY command handler).
6495 void zebra_vxlan_print_macs_all_vni_vtep(struct vty
*vty
,
6496 struct zebra_vrf
*zvrf
,
6497 struct in_addr vtep_ip
, bool use_json
)
6499 struct mac_walk_ctx wctx
;
6500 json_object
*json
= NULL
;
6502 if (!is_evpn_enabled())
6506 json
= json_object_new_object();
6508 memset(&wctx
, 0, sizeof(struct mac_walk_ctx
));
6510 wctx
.flags
= SHOW_REMOTE_MAC_FROM_VTEP
;
6511 wctx
.r_vtep_ip
= vtep_ip
;
6513 hash_iterate(zvrf
->vni_table
, zvni_print_mac_hash_all_vni
, &wctx
);
6516 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6517 json
, JSON_C_TO_STRING_PRETTY
));
6518 json_object_free(json
);
6523 * Display specific MAC for a VNI, if present (VTY command handler).
6525 void zebra_vxlan_print_specific_mac_vni(struct vty
*vty
, struct zebra_vrf
*zvrf
,
6526 vni_t vni
, struct ethaddr
*macaddr
,
6531 json_object
*json
= NULL
;
6533 if (!is_evpn_enabled())
6536 zvni
= zvni_lookup(vni
);
6539 vty_out(vty
, "{}\n");
6541 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
6544 mac
= zvni_mac_lookup(zvni
, macaddr
);
6547 vty_out(vty
, "{}\n");
6550 "%% Requested MAC does not exist in VNI %u\n",
6556 json
= json_object_new_object();
6558 zvni_print_mac(mac
, vty
, json
);
6560 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6561 json
, JSON_C_TO_STRING_PRETTY
));
6562 json_object_free(json
);
6566 /* Print Duplicate MACs per VNI */
6567 void zebra_vxlan_print_macs_vni_dad(struct vty
*vty
,
6568 struct zebra_vrf
*zvrf
,
6569 vni_t vni
, bool use_json
)
6572 struct mac_walk_ctx wctx
;
6574 json_object
*json
= NULL
;
6575 json_object
*json_mac
= NULL
;
6577 if (!is_evpn_enabled())
6580 zvni
= zvni_lookup(vni
);
6582 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
6586 num_macs
= num_valid_macs(zvni
);
6590 num_macs
= num_dup_detected_macs(zvni
);
6595 json
= json_object_new_object();
6596 json_mac
= json_object_new_object();
6599 memset(&wctx
, 0, sizeof(struct mac_walk_ctx
));
6602 wctx
.json
= json_mac
;
6606 "Number of MACs (local and remote) known for this VNI: %u\n",
6608 vty_out(vty
, "%-17s %-6s %-21s %-5s\n", "MAC", "Type",
6609 "Intf/Remote VTEP", "VLAN");
6611 json_object_int_add(json
, "numMacs", num_macs
);
6613 hash_iterate(zvni
->mac_table
, zvni_print_dad_mac_hash
, &wctx
);
6616 json_object_object_add(json
, "macs", json_mac
);
6617 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
6618 json
, JSON_C_TO_STRING_PRETTY
));
6619 json_object_free(json
);
6624 int zebra_vxlan_clear_dup_detect_vni_mac(struct vty
*vty
,
6625 struct zebra_vrf
*zvrf
,
6626 vni_t vni
, struct ethaddr
*macaddr
)
6630 struct listnode
*node
= NULL
;
6631 zebra_neigh_t
*nbr
= NULL
;
6633 if (!is_evpn_enabled())
6636 zvni
= zvni_lookup(vni
);
6638 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
6642 mac
= zvni_mac_lookup(zvni
, macaddr
);
6644 vty_out(vty
, "%% Requested MAC does not exist in VNI %u\n",
6649 if (!CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
)) {
6650 vty_out(vty
, "%% Requested MAC is not duplicate detected\n");
6654 /* Remove all IPs as duplicate associcated with this MAC */
6655 for (ALL_LIST_ELEMENTS_RO(mac
->neigh_list
, node
, nbr
)) {
6656 /* For local neigh mark inactive so MACIP update is generated
6657 * to BGP. This is a scenario where MAC update received
6658 * and detected as duplicate which marked neigh as duplicate.
6659 * Later local neigh update did not get a chance to relay
6660 * to BGP. Similarly remote macip update, neigh needs to be
6661 * installed locally.
6663 if (zvrf
->dad_freeze
&&
6664 CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
)) {
6665 if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_LOCAL
))
6666 ZEBRA_NEIGH_SET_INACTIVE(nbr
);
6667 else if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_REMOTE
))
6668 zvni_neigh_install(zvni
, nbr
);
6671 UNSET_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
);
6673 nbr
->detect_start_time
.tv_sec
= 0;
6674 nbr
->dad_dup_detect_time
= 0;
6677 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
);
6679 mac
->detect_start_time
.tv_sec
= 0;
6680 mac
->detect_start_time
.tv_usec
= 0;
6681 mac
->dad_dup_detect_time
= 0;
6682 THREAD_OFF(mac
->dad_mac_auto_recovery_timer
);
6684 /* warn-only action return */
6685 if (!zvrf
->dad_freeze
)
6688 /* Local: Notify Peer VTEPs, Remote: Install the entry */
6689 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
)) {
6691 if (zvni_mac_send_add_to_client(zvni
->vni
,
6697 /* Process all neighbors associated with this MAC. */
6698 zvni_process_neigh_on_local_mac_change(zvni
, mac
, 0);
6700 } else if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
)) {
6701 zvni_process_neigh_on_remote_mac_add(zvni
, mac
);
6703 /* Install the entry. */
6704 zvni_mac_install(zvni
, mac
);
6710 int zebra_vxlan_clear_dup_detect_vni_ip(struct vty
*vty
,
6711 struct zebra_vrf
*zvrf
,
6712 vni_t vni
, struct ipaddr
*ip
)
6717 char buf
[INET6_ADDRSTRLEN
];
6718 char buf2
[ETHER_ADDR_STRLEN
];
6720 if (!is_evpn_enabled())
6723 zvni
= zvni_lookup(vni
);
6725 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
6729 nbr
= zvni_neigh_lookup(zvni
, ip
);
6732 "%% Requested host IP does not exist in VNI %u\n",
6737 ipaddr2str(&nbr
->ip
, buf
, sizeof(buf
));
6739 if (!CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
)) {
6741 "%% Requsted host IP %s is not duplicate detected\n",
6746 mac
= zvni_mac_lookup(zvni
, &nbr
->emac
);
6748 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
)) {
6750 "%% Requested IP's associated MAC %s is still in duplicate state\n",
6751 prefix_mac2str(&nbr
->emac
, buf2
, sizeof(buf2
)));
6752 return CMD_WARNING_CONFIG_FAILED
;
6755 if (IS_ZEBRA_DEBUG_VXLAN
)
6756 zlog_debug("%s: clear neigh %s in dup state, flags 0x%x seq %u",
6757 __PRETTY_FUNCTION__
, buf
, nbr
->flags
,
6760 UNSET_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
);
6762 nbr
->detect_start_time
.tv_sec
= 0;
6763 nbr
->detect_start_time
.tv_usec
= 0;
6764 nbr
->dad_dup_detect_time
= 0;
6765 THREAD_OFF(nbr
->dad_ip_auto_recovery_timer
);
6767 if (!!CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_LOCAL
)) {
6768 zvni_neigh_send_add_to_client(zvni
->vni
, ip
,
6770 nbr
->flags
, nbr
->loc_seq
);
6771 } else if (!!CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_REMOTE
)) {
6772 zvni_neigh_install(zvni
, nbr
);
6778 static void zvni_clear_dup_mac_hash(struct hash_bucket
*bucket
, void *ctxt
)
6780 struct mac_walk_ctx
*wctx
= ctxt
;
6783 struct listnode
*node
= NULL
;
6784 zebra_neigh_t
*nbr
= NULL
;
6786 mac
= (zebra_mac_t
*)bucket
->data
;
6792 if (!CHECK_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
))
6795 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
);
6797 mac
->detect_start_time
.tv_sec
= 0;
6798 mac
->detect_start_time
.tv_usec
= 0;
6799 mac
->dad_dup_detect_time
= 0;
6800 THREAD_OFF(mac
->dad_mac_auto_recovery_timer
);
6802 /* Remove all IPs as duplicate associcated with this MAC */
6803 for (ALL_LIST_ELEMENTS_RO(mac
->neigh_list
, node
, nbr
)) {
6804 if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_LOCAL
)
6806 ZEBRA_NEIGH_SET_INACTIVE(nbr
);
6808 UNSET_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
);
6810 nbr
->detect_start_time
.tv_sec
= 0;
6811 nbr
->dad_dup_detect_time
= 0;
6814 /* Local: Notify Peer VTEPs, Remote: Install the entry */
6815 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
)) {
6817 if (zvni_mac_send_add_to_client(zvni
->vni
,
6819 mac
->flags
, mac
->loc_seq
))
6822 /* Process all neighbors associated with this MAC. */
6823 zvni_process_neigh_on_local_mac_change(zvni
, mac
, 0);
6825 } else if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
)) {
6826 zvni_process_neigh_on_remote_mac_add(zvni
, mac
);
6828 /* Install the entry. */
6829 zvni_mac_install(zvni
, mac
);
6833 static void zvni_clear_dup_neigh_hash(struct hash_bucket
*bucket
, void *ctxt
)
6835 struct neigh_walk_ctx
*wctx
= ctxt
;
6838 char buf
[INET6_ADDRSTRLEN
];
6840 nbr
= (zebra_neigh_t
*)bucket
->data
;
6846 if (!CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
))
6849 if (IS_ZEBRA_DEBUG_VXLAN
) {
6850 ipaddr2str(&nbr
->ip
, buf
, sizeof(buf
));
6852 "%s: clear neigh %s dup state, flags 0x%x seq %u",
6853 __PRETTY_FUNCTION__
, buf
,
6854 nbr
->flags
, nbr
->loc_seq
);
6857 UNSET_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
);
6859 nbr
->detect_start_time
.tv_sec
= 0;
6860 nbr
->detect_start_time
.tv_usec
= 0;
6861 nbr
->dad_dup_detect_time
= 0;
6862 THREAD_OFF(nbr
->dad_ip_auto_recovery_timer
);
6864 if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_LOCAL
)) {
6865 zvni_neigh_send_add_to_client(zvni
->vni
, &nbr
->ip
,
6867 nbr
->flags
, nbr
->loc_seq
);
6868 } else if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_REMOTE
)) {
6869 zvni_neigh_install(zvni
, nbr
);
6873 static void zvni_clear_dup_detect_hash_vni_all(struct hash_bucket
*bucket
,
6878 struct zebra_vrf
*zvrf
;
6879 struct mac_walk_ctx m_wctx
;
6880 struct neigh_walk_ctx n_wctx
;
6882 zvni
= (zebra_vni_t
*)bucket
->data
;
6886 vty
= (struct vty
*)args
[0];
6887 zvrf
= (struct zebra_vrf
*)args
[1];
6889 if (hashcount(zvni
->neigh_table
)) {
6890 memset(&n_wctx
, 0, sizeof(struct neigh_walk_ctx
));
6894 hash_iterate(zvni
->neigh_table
, zvni_clear_dup_neigh_hash
,
6898 if (num_valid_macs(zvni
)) {
6899 memset(&m_wctx
, 0, sizeof(struct mac_walk_ctx
));
6903 hash_iterate(zvni
->mac_table
, zvni_clear_dup_mac_hash
, &m_wctx
);
6908 int zebra_vxlan_clear_dup_detect_vni_all(struct vty
*vty
,
6909 struct zebra_vrf
*zvrf
)
6913 if (!is_evpn_enabled())
6919 hash_iterate(zvrf
->vni_table
,
6920 (void (*)(struct hash_bucket
*, void *))
6921 zvni_clear_dup_detect_hash_vni_all
, args
);
6926 int zebra_vxlan_clear_dup_detect_vni(struct vty
*vty
,
6927 struct zebra_vrf
*zvrf
,
6931 struct mac_walk_ctx m_wctx
;
6932 struct neigh_walk_ctx n_wctx
;
6934 if (!is_evpn_enabled())
6937 zvni
= zvni_lookup(vni
);
6939 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
6943 if (hashcount(zvni
->neigh_table
)) {
6944 memset(&n_wctx
, 0, sizeof(struct neigh_walk_ctx
));
6948 hash_iterate(zvni
->neigh_table
, zvni_clear_dup_neigh_hash
,
6952 if (num_valid_macs(zvni
)) {
6953 memset(&m_wctx
, 0, sizeof(struct mac_walk_ctx
));
6957 hash_iterate(zvni
->mac_table
, zvni_clear_dup_mac_hash
, &m_wctx
);
6964 * Display MACs for a VNI from specific VTEP (VTY command handler).
6966 void zebra_vxlan_print_macs_vni_vtep(struct vty
*vty
, struct zebra_vrf
*zvrf
,
6967 vni_t vni
, struct in_addr vtep_ip
,
6972 struct mac_walk_ctx wctx
;
6973 json_object
*json
= NULL
;
6974 json_object
*json_mac
= NULL
;
6976 if (!is_evpn_enabled())
6978 zvni
= zvni_lookup(vni
);
6981 vty_out(vty
, "{}\n");
6983 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
6986 num_macs
= num_valid_macs(zvni
);
6991 json
= json_object_new_object();
6992 json_mac
= json_object_new_object();
6995 memset(&wctx
, 0, sizeof(struct mac_walk_ctx
));
6998 wctx
.flags
= SHOW_REMOTE_MAC_FROM_VTEP
;
6999 wctx
.r_vtep_ip
= vtep_ip
;
7000 wctx
.json
= json_mac
;
7001 hash_iterate(zvni
->mac_table
, zvni_print_mac_hash
, &wctx
);
7004 json_object_int_add(json
, "numMacs", wctx
.count
);
7006 json_object_object_add(json
, "macs", json_mac
);
7007 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
7008 json
, JSON_C_TO_STRING_PRETTY
));
7009 json_object_free(json
);
7015 * Display VNI information (VTY command handler).
7017 void zebra_vxlan_print_vni(struct vty
*vty
, struct zebra_vrf
*zvrf
, vni_t vni
,
7020 json_object
*json
= NULL
;
7022 zebra_l3vni_t
*zl3vni
= NULL
;
7023 zebra_vni_t
*zvni
= NULL
;
7025 if (!is_evpn_enabled())
7029 json
= json_object_new_object();
7033 zl3vni
= zl3vni_lookup(vni
);
7035 zl3vni_print(zl3vni
, (void *)args
);
7037 zvni
= zvni_lookup(vni
);
7040 vty_out(vty
, "{}\n");
7042 vty_out(vty
, "%% VNI %u does not exist\n", vni
);
7046 zvni_print(zvni
, (void *)args
);
7050 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
7051 json
, JSON_C_TO_STRING_PRETTY
));
7052 json_object_free(json
);
7056 /* Display all global details for EVPN */
7057 void zebra_vxlan_print_evpn(struct vty
*vty
, bool uj
)
7062 json_object
*json
= NULL
;
7063 struct zebra_vrf
*zvrf
= NULL
;
7065 if (!is_evpn_enabled())
7068 zvrf
= zebra_vrf_get_evpn();
7072 num_l3vnis
= hashcount(zrouter
.l3vni_table
);
7073 num_l2vnis
= hashcount(zvrf
->vni_table
);
7074 num_vnis
= num_l2vnis
+ num_l3vnis
;
7077 json
= json_object_new_object();
7078 json_object_string_add(json
, "advertiseGatewayMacip",
7079 zvrf
->advertise_gw_macip
? "Yes" : "No");
7080 json_object_int_add(json
, "numVnis", num_vnis
);
7081 json_object_int_add(json
, "numL2Vnis", num_l2vnis
);
7082 json_object_int_add(json
, "numL3Vnis", num_l3vnis
);
7083 if (zvrf
->dup_addr_detect
)
7084 json_object_boolean_true_add(json
,
7085 "isDuplicateAddrDetection");
7087 json_object_boolean_false_add(json
,
7088 "isDuplicateAddrDetection");
7089 json_object_int_add(json
, "maxMoves", zvrf
->dad_max_moves
);
7090 json_object_int_add(json
, "detectionTime", zvrf
->dad_time
);
7091 json_object_int_add(json
, "detectionFreezeTime",
7092 zvrf
->dad_freeze_time
);
7095 vty_out(vty
, "L2 VNIs: %u\n", num_l2vnis
);
7096 vty_out(vty
, "L3 VNIs: %u\n", num_l3vnis
);
7097 vty_out(vty
, "Advertise gateway mac-ip: %s\n",
7098 zvrf
->advertise_gw_macip
? "Yes" : "No");
7099 vty_out(vty
, "Advertise svi mac-ip: %s\n",
7100 zvrf
->advertise_svi_macip
? "Yes" : "No");
7101 vty_out(vty
, "Duplicate address detection: %s\n",
7102 zvrf
->dup_addr_detect
? "Enable" : "Disable");
7103 vty_out(vty
, " Detection max-moves %u, time %d\n",
7104 zvrf
->dad_max_moves
, zvrf
->dad_time
);
7105 if (zvrf
->dad_freeze
) {
7106 if (zvrf
->dad_freeze_time
)
7107 vty_out(vty
, " Detection freeze %u\n",
7108 zvrf
->dad_freeze_time
);
7110 vty_out(vty
, " Detection freeze %s\n",
7116 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
7117 json
, JSON_C_TO_STRING_PRETTY
));
7118 json_object_free(json
);
7123 * Display VNI hash table (VTY command handler).
7125 void zebra_vxlan_print_vnis(struct vty
*vty
, struct zebra_vrf
*zvrf
,
7128 json_object
*json
= NULL
;
7131 if (!is_evpn_enabled())
7135 json
= json_object_new_object();
7137 vty_out(vty
, "%-10s %-4s %-21s %-8s %-8s %-15s %-37s\n", "VNI",
7138 "Type", "VxLAN IF", "# MACs", "# ARPs",
7139 "# Remote VTEPs", "Tenant VRF");
7144 /* Display all L2-VNIs */
7145 hash_iterate(zvrf
->vni_table
,
7146 (void (*)(struct hash_bucket
*, void *))zvni_print_hash
,
7149 /* Display all L3-VNIs */
7150 hash_iterate(zrouter
.l3vni_table
,
7151 (void (*)(struct hash_bucket
*, void *))zl3vni_print_hash
,
7155 vty_out(vty
, "%s\n", json_object_to_json_string_ext(
7156 json
, JSON_C_TO_STRING_PRETTY
));
7157 json_object_free(json
);
7161 void zebra_vxlan_dup_addr_detection(ZAPI_HANDLER_ARGS
)
7165 uint32_t max_moves
= 0;
7166 uint32_t freeze_time
= 0;
7167 bool dup_addr_detect
= false;
7168 bool freeze
= false;
7171 STREAM_GETL(s
, dup_addr_detect
);
7172 STREAM_GETL(s
, time
);
7173 STREAM_GETL(s
, max_moves
);
7174 STREAM_GETL(s
, freeze
);
7175 STREAM_GETL(s
, freeze_time
);
7177 /* DAD previous state was enabled, and new state is disable,
7178 * clear all duplicate detected addresses.
7180 if (zvrf
->dup_addr_detect
&& !dup_addr_detect
)
7181 zebra_vxlan_clear_dup_detect_vni_all(NULL
, zvrf
);
7183 zvrf
->dup_addr_detect
= dup_addr_detect
;
7184 zvrf
->dad_time
= time
;
7185 zvrf
->dad_max_moves
= max_moves
;
7186 zvrf
->dad_freeze
= freeze
;
7187 zvrf
->dad_freeze_time
= freeze_time
;
7189 if (IS_ZEBRA_DEBUG_VXLAN
)
7191 "VRF %s duplicate detect %s max_moves %u timeout %u freeze %s freeze_time %u",
7192 vrf_id_to_name(zvrf
->vrf
->vrf_id
),
7193 zvrf
->dup_addr_detect
? "enable" : "disable",
7194 zvrf
->dad_max_moves
,
7196 zvrf
->dad_freeze
? "enable" : "disable",
7197 zvrf
->dad_freeze_time
);
7204 * Display VNI hash table in detail(VTY command handler).
7206 void zebra_vxlan_print_vnis_detail(struct vty
*vty
, struct zebra_vrf
*zvrf
,
7209 json_object
*json
= NULL
;
7210 struct zebra_ns
*zns
= NULL
;
7211 struct zvni_evpn_show zes
;
7213 if (!is_evpn_enabled())
7216 zns
= zebra_ns_lookup(NS_DEFAULT
);
7222 json
= json_object_new_object();
7228 /* Display all L2-VNIs */
7231 (void (*)(struct hash_bucket
*, void *))zvni_print_hash_detail
,
7234 /* Display all L3-VNIs */
7235 hash_iterate(zrouter
.l3vni_table
,
7236 (void (*)(struct hash_bucket
*,
7237 void *))zl3vni_print_hash_detail
,
7241 vty_out(vty
, "%s\n",
7242 json_object_to_json_string_ext(
7243 json
, JSON_C_TO_STRING_PRETTY
));
7244 json_object_free(json
);
7249 * Handle neighbor delete notification from the kernel (on a VLAN device
7250 * / L3 interface). This may result in either the neighbor getting deleted
7251 * from our database or being re-added to the kernel (if it is a valid
7254 int zebra_vxlan_handle_kernel_neigh_del(struct interface
*ifp
,
7255 struct interface
*link_if
,
7258 char buf
[INET6_ADDRSTRLEN
];
7259 char buf2
[ETHER_ADDR_STRLEN
];
7260 zebra_neigh_t
*n
= NULL
;
7261 zebra_vni_t
*zvni
= NULL
;
7262 zebra_mac_t
*zmac
= NULL
;
7263 zebra_l3vni_t
*zl3vni
= NULL
;
7264 struct zebra_vrf
*zvrf
;
7266 /* check if this is a remote neigh entry corresponding to remote
7269 zl3vni
= zl3vni_from_svi(ifp
, link_if
);
7271 return zl3vni_local_nh_del(zl3vni
, ip
);
7273 /* We are only interested in neighbors on an SVI that resides on top
7274 * of a VxLAN bridge.
7276 zvni
= zvni_from_svi(ifp
, link_if
);
7280 if (!zvni
->vxlan_if
) {
7282 "VNI %u hash %p doesn't have intf upon local neighbor DEL",
7287 if (IS_ZEBRA_DEBUG_VXLAN
)
7288 zlog_debug("Del neighbor %s intf %s(%u) -> L2-VNI %u",
7289 ipaddr2str(ip
, buf
, sizeof(buf
)), ifp
->name
,
7290 ifp
->ifindex
, zvni
->vni
);
7292 /* If entry doesn't exist, nothing to do. */
7293 n
= zvni_neigh_lookup(zvni
, ip
);
7297 zmac
= zvni_mac_lookup(zvni
, &n
->emac
);
7299 if (IS_ZEBRA_DEBUG_VXLAN
)
7301 "Trying to del a neigh %s without a mac %s on VNI %u",
7302 ipaddr2str(ip
, buf
, sizeof(buf
)),
7303 prefix_mac2str(&n
->emac
, buf2
, sizeof(buf2
)),
7309 /* If it is a remote entry, the kernel has aged this out or someone has
7310 * deleted it, it needs to be re-installed as Quagga is the owner.
7312 if (CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_REMOTE
)) {
7313 zvni_neigh_install(zvni
, n
);
7317 zvrf
= vrf_info_lookup(zvni
->vxlan_if
->vrf_id
);
7319 zlog_debug("%s: VNI %u vrf lookup failed.",
7320 __PRETTY_FUNCTION__
, zvni
->vni
);
7324 /* In case of feeze action, if local neigh is in duplicate state,
7325 * Mark the Neigh as inactive before sending delete request to BGPd,
7326 * If BGPd has remote entry, it will re-install
7328 if (zvrf
->dad_freeze
&&
7329 CHECK_FLAG(n
->flags
, ZEBRA_NEIGH_DUPLICATE
))
7330 ZEBRA_NEIGH_SET_INACTIVE(n
);
7332 /* Remove neighbor from BGP. */
7333 zvni_neigh_send_del_to_client(zvni
->vni
, &n
->ip
, &n
->emac
, 0, n
->state
);
7335 /* Delete this neighbor entry. */
7336 zvni_neigh_del(zvni
, n
);
7338 /* see if the AUTO mac needs to be deleted */
7339 if (CHECK_FLAG(zmac
->flags
, ZEBRA_MAC_AUTO
)
7340 && !listcount(zmac
->neigh_list
))
7341 zvni_mac_del(zvni
, zmac
);
7347 * Handle neighbor add or update notification from the kernel (on a VLAN
7348 * device / L3 interface). This is typically for a local neighbor but can
7349 * also be for a remote neighbor (e.g., ageout notification). It could
7350 * also be a "move" scenario.
7352 int zebra_vxlan_handle_kernel_neigh_update(struct interface
*ifp
,
7353 struct interface
*link_if
,
7355 struct ethaddr
*macaddr
,
7360 char buf
[ETHER_ADDR_STRLEN
];
7361 char buf2
[INET6_ADDRSTRLEN
];
7362 zebra_vni_t
*zvni
= NULL
;
7363 zebra_l3vni_t
*zl3vni
= NULL
;
7365 /* check if this is a remote neigh entry corresponding to remote
7368 zl3vni
= zl3vni_from_svi(ifp
, link_if
);
7370 return zl3vni_local_nh_add_update(zl3vni
, ip
, state
);
7372 /* We are only interested in neighbors on an SVI that resides on top
7373 * of a VxLAN bridge.
7375 zvni
= zvni_from_svi(ifp
, link_if
);
7379 if (IS_ZEBRA_DEBUG_VXLAN
)
7381 "Add/Update neighbor %s MAC %s intf %s(%u) state 0x%x %s %s-> L2-VNI %u",
7382 ipaddr2str(ip
, buf2
, sizeof(buf2
)),
7383 prefix_mac2str(macaddr
, buf
, sizeof(buf
)), ifp
->name
,
7384 ifp
->ifindex
, state
, is_ext
? "ext-learned " : "",
7385 is_router
? "router " : "",
7388 /* Is this about a local neighbor or a remote one? */
7390 return zvni_local_neigh_update(zvni
, ifp
, ip
, macaddr
,
7393 return zvni_remote_neigh_update(zvni
, ifp
, ip
, macaddr
, state
);
7398 * Handle message from client to delete a remote MACIP for a VNI.
7400 void zebra_vxlan_remote_macip_del(ZAPI_HANDLER_ARGS
)
7404 struct ethaddr macaddr
;
7406 struct in_addr vtep_ip
;
7407 uint16_t l
= 0, ipa_len
;
7408 char buf
[ETHER_ADDR_STRLEN
];
7409 char buf1
[INET6_ADDRSTRLEN
];
7411 memset(&macaddr
, 0, sizeof(struct ethaddr
));
7412 memset(&ip
, 0, sizeof(struct ipaddr
));
7413 memset(&vtep_ip
, 0, sizeof(struct in_addr
));
7417 while (l
< hdr
->length
) {
7418 /* Obtain each remote MACIP and process. */
7419 /* Message contains VNI, followed by MAC followed by IP (if any)
7420 * followed by remote VTEP IP.
7422 memset(&ip
, 0, sizeof(ip
));
7423 STREAM_GETL(s
, vni
);
7424 STREAM_GET(&macaddr
.octet
, s
, ETH_ALEN
);
7425 STREAM_GETL(s
, ipa_len
);
7427 ip
.ipa_type
= (ipa_len
== IPV4_MAX_BYTELEN
) ? IPADDR_V4
7429 STREAM_GET(&ip
.ip
.addr
, s
, ipa_len
);
7431 l
+= 4 + ETH_ALEN
+ 4 + ipa_len
;
7432 STREAM_GET(&vtep_ip
.s_addr
, s
, IPV4_MAX_BYTELEN
);
7433 l
+= IPV4_MAX_BYTELEN
;
7435 if (IS_ZEBRA_DEBUG_VXLAN
)
7437 "Recv MACIP DEL VNI %u MAC %s%s%s Remote VTEP %s from %s",
7439 prefix_mac2str(&macaddr
, buf
, sizeof(buf
)),
7440 ipa_len
? " IP " : "",
7442 ipaddr2str(&ip
, buf1
, sizeof(buf1
)) : "",
7444 zebra_route_string(client
->proto
));
7446 process_remote_macip_del(vni
, &macaddr
, ipa_len
, &ip
, vtep_ip
);
7454 * Handle message from client to add a remote MACIP for a VNI. This
7455 * could be just the add of a MAC address or the add of a neighbor
7458 void zebra_vxlan_remote_macip_add(ZAPI_HANDLER_ARGS
)
7462 struct ethaddr macaddr
;
7464 struct in_addr vtep_ip
;
7465 uint16_t l
= 0, ipa_len
;
7468 char buf
[ETHER_ADDR_STRLEN
];
7469 char buf1
[INET6_ADDRSTRLEN
];
7471 memset(&macaddr
, 0, sizeof(struct ethaddr
));
7472 memset(&ip
, 0, sizeof(struct ipaddr
));
7473 memset(&vtep_ip
, 0, sizeof(struct in_addr
));
7475 if (!EVPN_ENABLED(zvrf
)) {
7476 zlog_debug("EVPN not enabled, ignoring remote MACIP ADD");
7482 while (l
< hdr
->length
) {
7483 /* Obtain each remote MACIP and process. */
7484 /* Message contains VNI, followed by MAC followed by IP (if any)
7485 * followed by remote VTEP IP.
7487 memset(&ip
, 0, sizeof(ip
));
7488 STREAM_GETL(s
, vni
);
7489 STREAM_GET(&macaddr
.octet
, s
, ETH_ALEN
);
7490 STREAM_GETL(s
, ipa_len
);
7492 ip
.ipa_type
= (ipa_len
== IPV4_MAX_BYTELEN
) ? IPADDR_V4
7494 STREAM_GET(&ip
.ip
.addr
, s
, ipa_len
);
7496 l
+= 4 + ETH_ALEN
+ 4 + ipa_len
;
7497 STREAM_GET(&vtep_ip
.s_addr
, s
, IPV4_MAX_BYTELEN
);
7498 l
+= IPV4_MAX_BYTELEN
;
7500 /* Get flags - sticky mac and/or gateway mac */
7501 STREAM_GETC(s
, flags
);
7503 STREAM_GETL(s
, seq
);
7506 if (IS_ZEBRA_DEBUG_VXLAN
)
7508 "Recv MACIP ADD VNI %u MAC %s%s%s flags 0x%x seq %u VTEP %s from %s",
7510 prefix_mac2str(&macaddr
, buf
, sizeof(buf
)),
7511 ipa_len
? " IP " : "",
7513 ipaddr2str(&ip
, buf1
, sizeof(buf1
)) : "",
7514 flags
, seq
, inet_ntoa(vtep_ip
),
7515 zebra_route_string(client
->proto
));
7517 process_remote_macip_add(vni
, &macaddr
, ipa_len
, &ip
,
7518 flags
, seq
, vtep_ip
);
7526 * Handle notification of MAC add/update over VxLAN. If the kernel is notifying
7527 * us, this must involve a multihoming scenario. Treat this as implicit delete
7528 * of any prior local MAC.
7530 int zebra_vxlan_check_del_local_mac(struct interface
*ifp
,
7531 struct interface
*br_if
,
7532 struct ethaddr
*macaddr
, vlanid_t vid
)
7534 struct zebra_if
*zif
;
7535 struct zebra_l2info_vxlan
*vxl
;
7539 char buf
[ETHER_ADDR_STRLEN
];
7543 vxl
= &zif
->l2info
.vxl
;
7546 /* Check if EVPN is enabled. */
7547 if (!is_evpn_enabled())
7550 /* Locate hash entry; it is expected to exist. */
7551 zvni
= zvni_lookup(vni
);
7555 /* If entry doesn't exist, nothing to do. */
7556 mac
= zvni_mac_lookup(zvni
, macaddr
);
7560 /* Is it a local entry? */
7561 if (!CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
))
7564 if (IS_ZEBRA_DEBUG_VXLAN
)
7566 "Add/update remote MAC %s intf %s(%u) VNI %u flags 0x%x - del local",
7567 prefix_mac2str(macaddr
, buf
, sizeof(buf
)), ifp
->name
,
7568 ifp
->ifindex
, vni
, mac
->flags
);
7570 /* Remove MAC from BGP. */
7571 zvni_mac_send_del_to_client(zvni
->vni
, macaddr
);
7574 * If there are no neigh associated with the mac delete the mac
7575 * else mark it as AUTO for forward reference
7577 if (!listcount(mac
->neigh_list
)) {
7578 zvni_mac_del(zvni
, mac
);
7580 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
);
7581 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_STICKY
);
7582 SET_FLAG(mac
->flags
, ZEBRA_MAC_AUTO
);
7589 * Handle remote MAC delete by kernel; readd the remote MAC if we have it.
7590 * This can happen because the remote MAC entries are also added as "dynamic",
7591 * so the kernel can ageout the entry.
7593 int zebra_vxlan_check_readd_remote_mac(struct interface
*ifp
,
7594 struct interface
*br_if
,
7595 struct ethaddr
*macaddr
, vlanid_t vid
)
7597 struct zebra_if
*zif
= NULL
;
7598 struct zebra_l2info_vxlan
*vxl
= NULL
;
7600 zebra_vni_t
*zvni
= NULL
;
7601 zebra_l3vni_t
*zl3vni
= NULL
;
7602 zebra_mac_t
*mac
= NULL
;
7603 char buf
[ETHER_ADDR_STRLEN
];
7607 vxl
= &zif
->l2info
.vxl
;
7610 /* Check if EVPN is enabled. */
7611 if (!is_evpn_enabled())
7614 /* check if this is a remote RMAC and readd simillar to remote macs */
7615 zl3vni
= zl3vni_lookup(vni
);
7617 return zebra_vxlan_readd_remote_rmac(zl3vni
, macaddr
);
7619 /* Locate hash entry; it is expected to exist. */
7620 zvni
= zvni_lookup(vni
);
7624 /* If entry doesn't exist, nothing to do. */
7625 mac
= zvni_mac_lookup(zvni
, macaddr
);
7629 /* Is it a remote entry? */
7630 if (!CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
))
7633 if (IS_ZEBRA_DEBUG_VXLAN
)
7634 zlog_debug("Del remote MAC %s intf %s(%u) VNI %u - readd",
7635 prefix_mac2str(macaddr
, buf
, sizeof(buf
)), ifp
->name
,
7638 zvni_mac_install(zvni
, mac
);
7643 * Handle local MAC delete (on a port or VLAN corresponding to this VNI).
7645 int zebra_vxlan_local_mac_del(struct interface
*ifp
, struct interface
*br_if
,
7646 struct ethaddr
*macaddr
, vlanid_t vid
)
7650 char buf
[ETHER_ADDR_STRLEN
];
7652 /* We are interested in MACs only on ports or (port, VLAN) that
7655 zvni
= zvni_map_vlan(ifp
, br_if
, vid
);
7658 if (!zvni
->vxlan_if
) {
7660 "VNI %u hash %p doesn't have intf upon local MAC DEL",
7665 /* If entry doesn't exist, nothing to do. */
7666 mac
= zvni_mac_lookup(zvni
, macaddr
);
7670 /* Is it a local entry? */
7671 if (!CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
))
7674 if (IS_ZEBRA_DEBUG_VXLAN
)
7675 zlog_debug("DEL MAC %s intf %s(%u) VID %u -> VNI %u flags 0x%x",
7676 prefix_mac2str(macaddr
, buf
, sizeof(buf
)), ifp
->name
,
7677 ifp
->ifindex
, vid
, zvni
->vni
, mac
->flags
);
7679 /* Update all the neigh entries associated with this mac */
7680 zvni_process_neigh_on_local_mac_del(zvni
, mac
);
7682 /* Remove MAC from BGP. */
7683 zvni_mac_send_del_to_client(zvni
->vni
, macaddr
);
7686 * If there are no neigh associated with the mac delete the mac
7687 * else mark it as AUTO for forward reference
7689 if (!listcount(mac
->neigh_list
)) {
7690 zvni_mac_del(zvni
, mac
);
7692 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
);
7693 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_STICKY
);
7694 SET_FLAG(mac
->flags
, ZEBRA_MAC_AUTO
);
7701 * Handle local MAC add (on a port or VLAN corresponding to this VNI).
7703 int zebra_vxlan_local_mac_add_update(struct interface
*ifp
,
7704 struct interface
*br_if
,
7705 struct ethaddr
*macaddr
, vlanid_t vid
,
7710 struct zebra_vrf
*zvrf
;
7711 char buf
[ETHER_ADDR_STRLEN
];
7712 bool mac_sticky
= false;
7713 bool inform_client
= false;
7714 bool upd_neigh
= false;
7715 bool is_dup_detect
= false;
7716 struct in_addr vtep_ip
= {.s_addr
= 0};
7718 /* We are interested in MACs only on ports or (port, VLAN) that
7721 zvni
= zvni_map_vlan(ifp
, br_if
, vid
);
7723 if (IS_ZEBRA_DEBUG_VXLAN
)
7725 "\tAdd/Update %sMAC %s intf %s(%u) VID %u, could not find VNI",
7726 sticky
? "sticky " : "",
7727 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
7728 ifp
->name
, ifp
->ifindex
, vid
);
7732 if (!zvni
->vxlan_if
) {
7733 if (IS_ZEBRA_DEBUG_VXLAN
)
7735 "\tVNI %u hash %p doesn't have intf upon local MAC ADD",
7740 zvrf
= vrf_info_lookup(zvni
->vxlan_if
->vrf_id
);
7742 if (IS_ZEBRA_DEBUG_VXLAN
)
7743 zlog_debug("\tNo Vrf found for vrf_id: %d",
7744 zvni
->vxlan_if
->vrf_id
);
7748 /* Check if we need to create or update or it is a NO-OP. */
7749 mac
= zvni_mac_lookup(zvni
, macaddr
);
7751 if (IS_ZEBRA_DEBUG_VXLAN
)
7753 "ADD %sMAC %s intf %s(%u) VID %u -> VNI %u",
7754 sticky
? "sticky " : "",
7755 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
7756 ifp
->name
, ifp
->ifindex
, vid
, zvni
->vni
);
7758 mac
= zvni_mac_add(zvni
, macaddr
);
7761 EC_ZEBRA_MAC_ADD_FAILED
,
7762 "Failed to add MAC %s intf %s(%u) VID %u VNI %u",
7763 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
7764 ifp
->name
, ifp
->ifindex
, vid
, zvni
->vni
);
7767 SET_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
);
7768 mac
->fwd_info
.local
.ifindex
= ifp
->ifindex
;
7769 mac
->fwd_info
.local
.vid
= vid
;
7771 SET_FLAG(mac
->flags
, ZEBRA_MAC_STICKY
);
7772 inform_client
= true;
7775 if (IS_ZEBRA_DEBUG_VXLAN
)
7777 "UPD %sMAC %s intf %s(%u) VID %u -> VNI %u curFlags 0x%x",
7778 sticky
? "sticky " : "",
7779 prefix_mac2str(macaddr
, buf
, sizeof(buf
)),
7780 ifp
->name
, ifp
->ifindex
, vid
, zvni
->vni
,
7783 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
)) {
7784 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_STICKY
))
7788 * Update any changes and if changes are relevant to
7791 if (mac_sticky
== sticky
7792 && mac
->fwd_info
.local
.ifindex
== ifp
->ifindex
7793 && mac
->fwd_info
.local
.vid
== vid
) {
7794 if (IS_ZEBRA_DEBUG_VXLAN
)
7796 "\tAdd/Update %sMAC %s intf %s(%u) VID %u -> VNI %u, "
7797 "entry exists and has not changed ",
7798 sticky
? "sticky " : "",
7799 prefix_mac2str(macaddr
, buf
,
7801 ifp
->name
, ifp
->ifindex
, vid
,
7805 if (mac_sticky
!= sticky
) {
7807 SET_FLAG(mac
->flags
,
7810 UNSET_FLAG(mac
->flags
,
7812 inform_client
= true;
7815 memset(&mac
->fwd_info
, 0, sizeof(mac
->fwd_info
));
7816 mac
->fwd_info
.local
.ifindex
= ifp
->ifindex
;
7817 mac
->fwd_info
.local
.vid
= vid
;
7819 } else if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
) ||
7820 CHECK_FLAG(mac
->flags
, ZEBRA_MAC_AUTO
)) {
7821 bool do_dad
= false;
7824 * MAC has either moved or was "internally" created due
7825 * to a neighbor learn and is now actually learnt. If
7826 * it was learnt as a remote sticky MAC, this is an
7829 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_STICKY
)) {
7831 EC_ZEBRA_STICKY_MAC_ALREADY_LEARNT
,
7832 "MAC %s already learnt as remote sticky MAC behind VTEP %s VNI %u",
7833 prefix_mac2str(macaddr
, buf
,
7835 inet_ntoa(mac
->fwd_info
.r_vtep_ip
),
7840 /* If an actual move, compute MAC's seq number */
7841 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
)) {
7842 mac
->loc_seq
= MAX(mac
->rem_seq
+ 1,
7844 vtep_ip
= mac
->fwd_info
.r_vtep_ip
;
7845 /* Trigger DAD for remote MAC */
7849 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
);
7850 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_AUTO
);
7851 SET_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
);
7852 memset(&mac
->fwd_info
, 0, sizeof(mac
->fwd_info
));
7853 mac
->fwd_info
.local
.ifindex
= ifp
->ifindex
;
7854 mac
->fwd_info
.local
.vid
= vid
;
7856 SET_FLAG(mac
->flags
, ZEBRA_MAC_STICKY
);
7858 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_STICKY
);
7860 * We have to inform BGP of this MAC as well as process
7863 inform_client
= true;
7866 zebra_vxlan_dup_addr_detect_for_mac(zvrf
, mac
, vtep_ip
,
7870 if (is_dup_detect
) {
7871 inform_client
= false;
7877 /* Inform BGP if required. */
7878 if (inform_client
) {
7879 if (zvni_mac_send_add_to_client(zvni
->vni
, macaddr
,
7880 mac
->flags
, mac
->loc_seq
))
7884 /* Process all neighbors associated with this MAC, if required. */
7886 zvni_process_neigh_on_local_mac_change(zvni
, mac
, 0);
7892 * Handle message from client to delete a remote VTEP for a VNI.
7894 void zebra_vxlan_remote_vtep_del(ZAPI_HANDLER_ARGS
)
7897 unsigned short l
= 0;
7899 struct in_addr vtep_ip
;
7901 zebra_vtep_t
*zvtep
;
7902 struct interface
*ifp
;
7903 struct zebra_if
*zif
;
7905 if (!is_evpn_enabled()) {
7907 "%s: EVPN is not enabled yet we have received a vtep del command",
7908 __PRETTY_FUNCTION__
);
7912 if (!EVPN_ENABLED(zvrf
)) {
7913 zlog_debug("Recv MACIP DEL for non-EVPN VRF %u",
7920 while (l
< hdr
->length
) {
7921 int flood_control
__attribute__((unused
));
7923 /* Obtain each remote VTEP and process. */
7924 STREAM_GETL(s
, vni
);
7926 STREAM_GET(&vtep_ip
.s_addr
, s
, IPV4_MAX_BYTELEN
);
7927 l
+= IPV4_MAX_BYTELEN
;
7929 /* Flood control is intentionally ignored right now */
7930 STREAM_GETL(s
, flood_control
);
7933 if (IS_ZEBRA_DEBUG_VXLAN
)
7934 zlog_debug("Recv VTEP_DEL %s VNI %u from %s",
7935 inet_ntoa(vtep_ip
), vni
,
7936 zebra_route_string(client
->proto
));
7938 /* Locate VNI hash entry - expected to exist. */
7939 zvni
= zvni_lookup(vni
);
7941 if (IS_ZEBRA_DEBUG_VXLAN
)
7943 "Failed to locate VNI hash upon remote VTEP DEL, "
7949 ifp
= zvni
->vxlan_if
;
7952 "VNI %u hash %p doesn't have intf upon remote VTEP DEL",
7958 /* If down or not mapped to a bridge, we're done. */
7959 if (!if_is_operative(ifp
) || !zif
->brslave_info
.br_if
)
7962 /* If the remote VTEP does not exist, there's nothing more to
7964 * Otherwise, uninstall any remote MACs pointing to this VTEP
7966 * then, the VTEP entry itself and remove it.
7968 zvtep
= zvni_vtep_find(zvni
, &vtep_ip
);
7972 zvni_neigh_del_from_vtep(zvni
, 1, &vtep_ip
);
7973 zvni_mac_del_from_vtep(zvni
, 1, &vtep_ip
);
7974 zvni_vtep_uninstall(zvni
, &vtep_ip
);
7975 zvni_vtep_del(zvni
, zvtep
);
7983 * Handle message from client to add a remote VTEP for a VNI.
7985 void zebra_vxlan_remote_vtep_add(ZAPI_HANDLER_ARGS
)
7988 unsigned short l
= 0;
7990 struct in_addr vtep_ip
;
7992 struct interface
*ifp
;
7993 struct zebra_if
*zif
;
7995 zebra_vtep_t
*zvtep
;
7997 if (!is_evpn_enabled()) {
7999 "%s: EVPN not enabled yet we received a vtep_add zapi call",
8000 __PRETTY_FUNCTION__
);
8004 if (!EVPN_ENABLED(zvrf
)) {
8005 zlog_debug("Recv MACIP ADD for non-EVPN VRF %u",
8012 while (l
< hdr
->length
) {
8013 /* Obtain each remote VTEP and process. */
8014 STREAM_GETL(s
, vni
);
8016 STREAM_GET(&vtep_ip
.s_addr
, s
, IPV4_MAX_BYTELEN
);
8017 STREAM_GETL(s
, flood_control
);
8018 l
+= IPV4_MAX_BYTELEN
+ 4;
8020 if (IS_ZEBRA_DEBUG_VXLAN
)
8021 zlog_debug("Recv VTEP_ADD %s VNI %u flood %d from %s",
8022 inet_ntoa(vtep_ip
), vni
, flood_control
,
8023 zebra_route_string(client
->proto
));
8025 /* Locate VNI hash entry - expected to exist. */
8026 zvni
= zvni_lookup(vni
);
8029 EC_ZEBRA_VTEP_ADD_FAILED
,
8030 "Failed to locate VNI hash upon remote VTEP ADD, VNI %u",
8035 ifp
= zvni
->vxlan_if
;
8038 EC_ZEBRA_VTEP_ADD_FAILED
,
8039 "VNI %u hash %p doesn't have intf upon remote VTEP ADD",
8046 /* If down or not mapped to a bridge, we're done. */
8047 if (!if_is_operative(ifp
) || !zif
->brslave_info
.br_if
)
8050 zvtep
= zvni_vtep_find(zvni
, &vtep_ip
);
8052 /* If the remote VTEP already exists check if
8053 * the flood mode has changed
8055 if (zvtep
->flood_control
!= flood_control
) {
8056 if (zvtep
->flood_control
8057 == VXLAN_FLOOD_DISABLED
)
8058 /* old mode was head-end-replication but
8059 * is no longer; get rid of the HER fdb
8060 * entry installed before
8062 zvni_vtep_uninstall(zvni
, &vtep_ip
);
8063 zvtep
->flood_control
= flood_control
;
8064 zvni_vtep_install(zvni
, zvtep
);
8067 zvtep
= zvni_vtep_add(zvni
, &vtep_ip
, flood_control
);
8069 zvni_vtep_install(zvni
, zvtep
);
8071 flog_err(EC_ZEBRA_VTEP_ADD_FAILED
,
8072 "Failed to add remote VTEP, VNI %u zvni %p",
8082 * Add/Del gateway macip to evpn
8084 * 1. SVI interface on a vlan aware bridge
8085 * 2. SVI interface on a vlan unaware bridge
8086 * 3. vrr interface (MACVLAN) associated to a SVI
8087 * We advertise macip routes for an interface if it is associated to VxLan vlan
8089 int zebra_vxlan_add_del_gw_macip(struct interface
*ifp
, struct prefix
*p
,
8093 struct ethaddr macaddr
;
8094 zebra_vni_t
*zvni
= NULL
;
8096 memset(&ip
, 0, sizeof(struct ipaddr
));
8097 memset(&macaddr
, 0, sizeof(struct ethaddr
));
8099 /* Check if EVPN is enabled. */
8100 if (!is_evpn_enabled())
8103 if (IS_ZEBRA_IF_MACVLAN(ifp
)) {
8104 struct interface
*svi_if
=
8105 NULL
; /* SVI corresponding to the MACVLAN */
8106 struct zebra_if
*ifp_zif
=
8107 NULL
; /* Zebra daemon specific info for MACVLAN */
8108 struct zebra_if
*svi_if_zif
=
8109 NULL
; /* Zebra daemon specific info for SVI*/
8111 ifp_zif
= ifp
->info
;
8116 * for a MACVLAN interface the link represents the svi_if
8118 svi_if
= if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT
),
8119 ifp_zif
->link_ifindex
);
8121 zlog_debug("MACVLAN %s(%u) without link information",
8122 ifp
->name
, ifp
->ifindex
);
8126 if (IS_ZEBRA_IF_VLAN(svi_if
)) {
8128 * If it is a vlan aware bridge then the link gives the
8129 * bridge information
8131 struct interface
*svi_if_link
= NULL
;
8133 svi_if_zif
= svi_if
->info
;
8135 svi_if_link
= if_lookup_by_index_per_ns(
8136 zebra_ns_lookup(NS_DEFAULT
),
8137 svi_if_zif
->link_ifindex
);
8138 zvni
= zvni_from_svi(svi_if
, svi_if_link
);
8140 } else if (IS_ZEBRA_IF_BRIDGE(svi_if
)) {
8142 * If it is a vlan unaware bridge then svi is the bridge
8145 zvni
= zvni_from_svi(svi_if
, svi_if
);
8147 } else if (IS_ZEBRA_IF_VLAN(ifp
)) {
8148 struct zebra_if
*svi_if_zif
=
8149 NULL
; /* Zebra daemon specific info for SVI */
8150 struct interface
*svi_if_link
=
8151 NULL
; /* link info for the SVI = bridge info */
8153 svi_if_zif
= ifp
->info
;
8155 svi_if_link
= if_lookup_by_index_per_ns(
8156 zebra_ns_lookup(NS_DEFAULT
),
8157 svi_if_zif
->link_ifindex
);
8159 zvni
= zvni_from_svi(ifp
, svi_if_link
);
8161 } else if (IS_ZEBRA_IF_BRIDGE(ifp
)) {
8162 zvni
= zvni_from_svi(ifp
, ifp
);
8168 if (!zvni
->vxlan_if
) {
8169 zlog_debug("VNI %u hash %p doesn't have intf upon MACVLAN up",
8175 memcpy(&macaddr
.octet
, ifp
->hw_addr
, ETH_ALEN
);
8177 if (p
->family
== AF_INET
) {
8178 ip
.ipa_type
= IPADDR_V4
;
8179 memcpy(&(ip
.ipaddr_v4
), &(p
->u
.prefix4
),
8180 sizeof(struct in_addr
));
8181 } else if (p
->family
== AF_INET6
) {
8182 ip
.ipa_type
= IPADDR_V6
;
8183 memcpy(&(ip
.ipaddr_v6
), &(p
->u
.prefix6
),
8184 sizeof(struct in6_addr
));
8189 zvni_gw_macip_add(ifp
, zvni
, &macaddr
, &ip
);
8191 zvni_gw_macip_del(ifp
, zvni
, &ip
);
8197 * Handle SVI interface going down.
8198 * SVI can be associated to either L3-VNI or L2-VNI.
8199 * For L2-VNI: At this point, this is a NOP since
8200 * the kernel deletes the neighbor entries on this SVI (if any).
8201 * We only need to update the vrf corresponding to zvni.
8202 * For L3-VNI: L3-VNI is operationally down, update mac-ip routes and delete
8205 int zebra_vxlan_svi_down(struct interface
*ifp
, struct interface
*link_if
)
8207 zebra_l3vni_t
*zl3vni
= NULL
;
8209 zl3vni
= zl3vni_from_svi(ifp
, link_if
);
8212 /* process l3-vni down */
8213 zebra_vxlan_process_l3vni_oper_down(zl3vni
);
8215 /* remove association with svi-if */
8216 zl3vni
->svi_if
= NULL
;
8218 zebra_vni_t
*zvni
= NULL
;
8220 /* since we dont have svi corresponding to zvni, we associate it
8221 * to default vrf. Note: the corresponding neigh entries on the
8222 * SVI would have already been deleted */
8223 zvni
= zvni_from_svi(ifp
, link_if
);
8225 zvni
->vrf_id
= VRF_DEFAULT
;
8227 /* update the tenant vrf in BGP */
8228 zvni_send_add_to_client(zvni
);
8235 * Handle SVI interface coming up.
8236 * SVI can be associated to L3-VNI (l3vni vxlan interface) or L2-VNI (l2-vni
8238 * For L2-VNI: we need to install any remote neighbors entried (used for
8240 * For L3-VNI: SVI will be used to get the rmac to be used with L3-VNI
8242 int zebra_vxlan_svi_up(struct interface
*ifp
, struct interface
*link_if
)
8244 zebra_vni_t
*zvni
= NULL
;
8245 zebra_l3vni_t
*zl3vni
= NULL
;
8247 zl3vni
= zl3vni_from_svi(ifp
, link_if
);
8250 /* associate with svi */
8251 zl3vni
->svi_if
= ifp
;
8253 /* process oper-up */
8254 if (is_l3vni_oper_up(zl3vni
))
8255 zebra_vxlan_process_l3vni_oper_up(zl3vni
);
8258 /* process SVI up for l2-vni */
8259 struct neigh_walk_ctx n_wctx
;
8261 zvni
= zvni_from_svi(ifp
, link_if
);
8265 if (!zvni
->vxlan_if
) {
8267 "VNI %u hash %p doesn't have intf upon SVI up",
8272 if (IS_ZEBRA_DEBUG_VXLAN
)
8274 "SVI %s(%u) VNI %u VRF %s is UP, installing neighbors",
8275 ifp
->name
, ifp
->ifindex
, zvni
->vni
,
8276 vrf_id_to_name(ifp
->vrf_id
));
8278 /* update the vrf information for l2-vni and inform bgp */
8279 zvni
->vrf_id
= ifp
->vrf_id
;
8280 zvni_send_add_to_client(zvni
);
8282 /* Install any remote neighbors for this VNI. */
8283 memset(&n_wctx
, 0, sizeof(struct neigh_walk_ctx
));
8285 hash_iterate(zvni
->neigh_table
, zvni_install_neigh_hash
,
8293 * Handle VxLAN interface down
8295 int zebra_vxlan_if_down(struct interface
*ifp
)
8298 struct zebra_if
*zif
= NULL
;
8299 struct zebra_l2info_vxlan
*vxl
= NULL
;
8300 zebra_l3vni_t
*zl3vni
= NULL
;
8303 /* Check if EVPN is enabled. */
8304 if (!is_evpn_enabled())
8309 vxl
= &zif
->l2info
.vxl
;
8312 zl3vni
= zl3vni_lookup(vni
);
8314 /* process-if-down for l3-vni */
8315 if (IS_ZEBRA_DEBUG_VXLAN
)
8316 zlog_debug("Intf %s(%u) L3-VNI %u is DOWN", ifp
->name
,
8319 zebra_vxlan_process_l3vni_oper_down(zl3vni
);
8321 /* process if-down for l2-vni */
8322 if (IS_ZEBRA_DEBUG_VXLAN
)
8323 zlog_debug("Intf %s(%u) L2-VNI %u is DOWN", ifp
->name
,
8326 /* Locate hash entry; it is expected to exist. */
8327 zvni
= zvni_lookup(vni
);
8330 "Failed to locate VNI hash at DOWN, IF %s(%u) VNI %u",
8331 ifp
->name
, ifp
->ifindex
, vni
);
8335 assert(zvni
->vxlan_if
== ifp
);
8337 /* Delete this VNI from BGP. */
8338 zvni_send_del_to_client(zvni
->vni
);
8340 /* Free up all neighbors and MACs, if any. */
8341 zvni_neigh_del_all(zvni
, 1, 0, DEL_ALL_NEIGH
);
8342 zvni_mac_del_all(zvni
, 1, 0, DEL_ALL_MAC
);
8344 /* Free up all remote VTEPs, if any. */
8345 zvni_vtep_del_all(zvni
, 1);
8351 * Handle VxLAN interface up - update BGP if required.
8353 int zebra_vxlan_if_up(struct interface
*ifp
)
8356 struct zebra_if
*zif
= NULL
;
8357 struct zebra_l2info_vxlan
*vxl
= NULL
;
8358 zebra_vni_t
*zvni
= NULL
;
8359 zebra_l3vni_t
*zl3vni
= NULL
;
8361 /* Check if EVPN is enabled. */
8362 if (!is_evpn_enabled())
8367 vxl
= &zif
->l2info
.vxl
;
8370 zl3vni
= zl3vni_lookup(vni
);
8373 if (IS_ZEBRA_DEBUG_VXLAN
)
8374 zlog_debug("Intf %s(%u) L3-VNI %u is UP", ifp
->name
,
8377 /* we need to associate with SVI, if any, we can associate with
8378 * svi-if only after association with vxlan-intf is complete
8380 zl3vni
->svi_if
= zl3vni_map_to_svi_if(zl3vni
);
8382 if (is_l3vni_oper_up(zl3vni
))
8383 zebra_vxlan_process_l3vni_oper_up(zl3vni
);
8385 /* Handle L2-VNI add */
8386 struct interface
*vlan_if
= NULL
;
8388 if (IS_ZEBRA_DEBUG_VXLAN
)
8389 zlog_debug("Intf %s(%u) L2-VNI %u is UP", ifp
->name
,
8392 /* Locate hash entry; it is expected to exist. */
8393 zvni
= zvni_lookup(vni
);
8396 "Failed to locate VNI hash at UP, IF %s(%u) VNI %u",
8397 ifp
->name
, ifp
->ifindex
, vni
);
8401 assert(zvni
->vxlan_if
== ifp
);
8402 vlan_if
= zvni_map_to_svi(vxl
->access_vlan
,
8403 zif
->brslave_info
.br_if
);
8405 zvni
->vrf_id
= vlan_if
->vrf_id
;
8406 zl3vni
= zl3vni_from_vrf(vlan_if
->vrf_id
);
8408 listnode_add_sort(zl3vni
->l2vnis
, zvni
);
8411 /* If part of a bridge, inform BGP about this VNI. */
8412 /* Also, read and populate local MACs and neighbors. */
8413 if (zif
->brslave_info
.br_if
) {
8414 zvni_send_add_to_client(zvni
);
8415 zvni_read_mac_neigh(zvni
, ifp
);
8423 * Handle VxLAN interface delete. Locate and remove entry in hash table
8424 * and update BGP, if required.
8426 int zebra_vxlan_if_del(struct interface
*ifp
)
8429 struct zebra_if
*zif
= NULL
;
8430 struct zebra_l2info_vxlan
*vxl
= NULL
;
8431 zebra_vni_t
*zvni
= NULL
;
8432 zebra_l3vni_t
*zl3vni
= NULL
;
8434 /* Check if EVPN is enabled. */
8435 if (!is_evpn_enabled())
8440 vxl
= &zif
->l2info
.vxl
;
8443 zl3vni
= zl3vni_lookup(vni
);
8446 if (IS_ZEBRA_DEBUG_VXLAN
)
8447 zlog_debug("Del L3-VNI %u intf %s(%u)", vni
, ifp
->name
,
8450 /* process oper-down for l3-vni */
8451 zebra_vxlan_process_l3vni_oper_down(zl3vni
);
8453 /* remove the association with vxlan_if */
8454 memset(&zl3vni
->local_vtep_ip
, 0, sizeof(struct in_addr
));
8455 zl3vni
->vxlan_if
= NULL
;
8458 /* process if-del for l2-vni*/
8459 if (IS_ZEBRA_DEBUG_VXLAN
)
8460 zlog_debug("Del L2-VNI %u intf %s(%u)", vni
, ifp
->name
,
8463 /* Locate hash entry; it is expected to exist. */
8464 zvni
= zvni_lookup(vni
);
8467 "Failed to locate VNI hash at del, IF %s(%u) VNI %u",
8468 ifp
->name
, ifp
->ifindex
, vni
);
8472 /* remove from l3-vni list */
8473 zl3vni
= zl3vni_from_vrf(zvni
->vrf_id
);
8475 listnode_delete(zl3vni
->l2vnis
, zvni
);
8477 /* Delete VNI from BGP. */
8478 zvni_send_del_to_client(zvni
->vni
);
8480 /* Free up all neighbors and MAC, if any. */
8481 zvni_neigh_del_all(zvni
, 0, 0, DEL_ALL_NEIGH
);
8482 zvni_mac_del_all(zvni
, 0, 0, DEL_ALL_MAC
);
8484 /* Free up all remote VTEPs, if any. */
8485 zvni_vtep_del_all(zvni
, 0);
8487 /* Delete the hash entry. */
8488 if (zvni_del(zvni
)) {
8489 flog_err(EC_ZEBRA_VNI_DEL_FAILED
,
8490 "Failed to del VNI hash %p, IF %s(%u) VNI %u",
8491 zvni
, ifp
->name
, ifp
->ifindex
, zvni
->vni
);
8499 * Handle VxLAN interface update - change to tunnel IP, master or VLAN.
8501 int zebra_vxlan_if_update(struct interface
*ifp
, uint16_t chgflags
)
8504 struct zebra_if
*zif
= NULL
;
8505 struct zebra_l2info_vxlan
*vxl
= NULL
;
8506 zebra_vni_t
*zvni
= NULL
;
8507 zebra_l3vni_t
*zl3vni
= NULL
;
8509 /* Check if EVPN is enabled. */
8510 if (!is_evpn_enabled())
8515 vxl
= &zif
->l2info
.vxl
;
8518 zl3vni
= zl3vni_lookup(vni
);
8521 if (IS_ZEBRA_DEBUG_VXLAN
)
8523 "Update L3-VNI %u intf %s(%u) VLAN %u local IP %s master %u chg 0x%x",
8524 vni
, ifp
->name
, ifp
->ifindex
, vxl
->access_vlan
,
8525 inet_ntoa(vxl
->vtep_ip
),
8526 zif
->brslave_info
.bridge_ifindex
, chgflags
);
8528 /* Removed from bridge? Cleanup and return */
8529 if ((chgflags
& ZEBRA_VXLIF_MASTER_CHANGE
)
8530 && (zif
->brslave_info
.bridge_ifindex
== IFINDEX_INTERNAL
)) {
8531 zebra_vxlan_process_l3vni_oper_down(zl3vni
);
8535 /* access-vlan change - process oper down, associate with new
8536 * svi_if and then process oper up again
8538 if (chgflags
& ZEBRA_VXLIF_VLAN_CHANGE
) {
8539 if (if_is_operative(ifp
)) {
8540 zebra_vxlan_process_l3vni_oper_down(zl3vni
);
8541 zl3vni
->svi_if
= NULL
;
8542 zl3vni
->svi_if
= zl3vni_map_to_svi_if(zl3vni
);
8543 zl3vni
->local_vtep_ip
= vxl
->vtep_ip
;
8544 if (is_l3vni_oper_up(zl3vni
))
8545 zebra_vxlan_process_l3vni_oper_up(
8551 * local-ip change - process oper down, associate with new
8552 * local-ip and then process oper up again
8554 if (chgflags
& ZEBRA_VXLIF_LOCAL_IP_CHANGE
) {
8555 if (if_is_operative(ifp
)) {
8556 zebra_vxlan_process_l3vni_oper_down(zl3vni
);
8557 zl3vni
->local_vtep_ip
= vxl
->vtep_ip
;
8558 if (is_l3vni_oper_up(zl3vni
))
8559 zebra_vxlan_process_l3vni_oper_up(
8564 /* Update local tunnel IP. */
8565 zl3vni
->local_vtep_ip
= vxl
->vtep_ip
;
8567 /* if we have a valid new master, process l3-vni oper up */
8568 if (chgflags
& ZEBRA_VXLIF_MASTER_CHANGE
) {
8569 if (if_is_operative(ifp
) && is_l3vni_oper_up(zl3vni
))
8570 zebra_vxlan_process_l3vni_oper_up(zl3vni
);
8574 /* Update VNI hash. */
8575 zvni
= zvni_lookup(vni
);
8578 "Failed to find L2-VNI hash on update, IF %s(%u) VNI %u",
8579 ifp
->name
, ifp
->ifindex
, vni
);
8583 if (IS_ZEBRA_DEBUG_VXLAN
)
8585 "Update L2-VNI %u intf %s(%u) VLAN %u local IP %s master %u chg 0x%x",
8586 vni
, ifp
->name
, ifp
->ifindex
, vxl
->access_vlan
,
8587 inet_ntoa(vxl
->vtep_ip
),
8588 zif
->brslave_info
.bridge_ifindex
, chgflags
);
8590 /* Removed from bridge? Cleanup and return */
8591 if ((chgflags
& ZEBRA_VXLIF_MASTER_CHANGE
)
8592 && (zif
->brslave_info
.bridge_ifindex
== IFINDEX_INTERNAL
)) {
8593 /* Delete from client, remove all remote VTEPs */
8594 /* Also, free up all MACs and neighbors. */
8595 zvni_send_del_to_client(zvni
->vni
);
8596 zvni_neigh_del_all(zvni
, 1, 0, DEL_ALL_NEIGH
);
8597 zvni_mac_del_all(zvni
, 1, 0, DEL_ALL_MAC
);
8598 zvni_vtep_del_all(zvni
, 1);
8602 /* Handle other changes. */
8603 if (chgflags
& ZEBRA_VXLIF_VLAN_CHANGE
) {
8604 /* Remove all existing local neigh and MACs for this VNI
8605 * (including from BGP)
8607 zvni_neigh_del_all(zvni
, 0, 1, DEL_LOCAL_MAC
);
8608 zvni_mac_del_all(zvni
, 0, 1, DEL_LOCAL_MAC
);
8611 if (zvni
->local_vtep_ip
.s_addr
!= vxl
->vtep_ip
.s_addr
||
8612 zvni
->mcast_grp
.s_addr
!= vxl
->mcast_grp
.s_addr
) {
8613 zebra_vxlan_sg_deref(zvni
->local_vtep_ip
,
8615 zebra_vxlan_sg_ref(vxl
->vtep_ip
, vxl
->mcast_grp
);
8616 zvni
->local_vtep_ip
= vxl
->vtep_ip
;
8617 zvni
->mcast_grp
= vxl
->mcast_grp
;
8619 zvni
->vxlan_if
= ifp
;
8621 /* Take further actions needed.
8622 * Note that if we are here, there is a change of interest.
8624 /* If down or not mapped to a bridge, we're done. */
8625 if (!if_is_operative(ifp
) || !zif
->brslave_info
.br_if
)
8628 /* Inform BGP, if there is a change of interest. */
8630 & (ZEBRA_VXLIF_MASTER_CHANGE
|
8631 ZEBRA_VXLIF_LOCAL_IP_CHANGE
|
8632 ZEBRA_VXLIF_MCAST_GRP_CHANGE
))
8633 zvni_send_add_to_client(zvni
);
8635 /* If there is a valid new master or a VLAN mapping change,
8636 * read and populate local MACs and neighbors.
8637 * Also, reinstall any remote MACs and neighbors
8638 * for this VNI (based on new VLAN).
8640 if (chgflags
& ZEBRA_VXLIF_MASTER_CHANGE
)
8641 zvni_read_mac_neigh(zvni
, ifp
);
8642 else if (chgflags
& ZEBRA_VXLIF_VLAN_CHANGE
) {
8643 struct mac_walk_ctx m_wctx
;
8644 struct neigh_walk_ctx n_wctx
;
8646 zvni_read_mac_neigh(zvni
, ifp
);
8648 memset(&m_wctx
, 0, sizeof(struct mac_walk_ctx
));
8650 hash_iterate(zvni
->mac_table
, zvni_install_mac_hash
,
8653 memset(&n_wctx
, 0, sizeof(struct neigh_walk_ctx
));
8655 hash_iterate(zvni
->neigh_table
, zvni_install_neigh_hash
,
8664 * Handle VxLAN interface add.
8666 int zebra_vxlan_if_add(struct interface
*ifp
)
8669 struct zebra_if
*zif
= NULL
;
8670 struct zebra_l2info_vxlan
*vxl
= NULL
;
8671 zebra_vni_t
*zvni
= NULL
;
8672 zebra_l3vni_t
*zl3vni
= NULL
;
8674 /* Check if EVPN is enabled. */
8675 if (!is_evpn_enabled())
8680 vxl
= &zif
->l2info
.vxl
;
8683 zl3vni
= zl3vni_lookup(vni
);
8686 /* process if-add for l3-vni*/
8687 if (IS_ZEBRA_DEBUG_VXLAN
)
8689 "Add L3-VNI %u intf %s(%u) VLAN %u local IP %s master %u",
8690 vni
, ifp
->name
, ifp
->ifindex
, vxl
->access_vlan
,
8691 inet_ntoa(vxl
->vtep_ip
),
8692 zif
->brslave_info
.bridge_ifindex
);
8694 /* associate with vxlan_if */
8695 zl3vni
->local_vtep_ip
= vxl
->vtep_ip
;
8696 zl3vni
->vxlan_if
= ifp
;
8698 /* Associate with SVI, if any. We can associate with svi-if only
8699 * after association with vxlan_if is complete */
8700 zl3vni
->svi_if
= zl3vni_map_to_svi_if(zl3vni
);
8702 if (is_l3vni_oper_up(zl3vni
))
8703 zebra_vxlan_process_l3vni_oper_up(zl3vni
);
8706 /* process if-add for l2-vni */
8707 struct interface
*vlan_if
= NULL
;
8709 /* Create or update VNI hash. */
8710 zvni
= zvni_lookup(vni
);
8712 zvni
= zvni_add(vni
);
8715 EC_ZEBRA_VNI_ADD_FAILED
,
8716 "Failed to add VNI hash, IF %s(%u) VNI %u",
8717 ifp
->name
, ifp
->ifindex
, vni
);
8722 if (zvni
->local_vtep_ip
.s_addr
!= vxl
->vtep_ip
.s_addr
||
8723 zvni
->mcast_grp
.s_addr
!= vxl
->mcast_grp
.s_addr
) {
8724 zebra_vxlan_sg_deref(zvni
->local_vtep_ip
,
8726 zebra_vxlan_sg_ref(vxl
->vtep_ip
, vxl
->mcast_grp
);
8727 zvni
->local_vtep_ip
= vxl
->vtep_ip
;
8728 zvni
->mcast_grp
= vxl
->mcast_grp
;
8730 zvni
->vxlan_if
= ifp
;
8731 vlan_if
= zvni_map_to_svi(vxl
->access_vlan
,
8732 zif
->brslave_info
.br_if
);
8734 zvni
->vrf_id
= vlan_if
->vrf_id
;
8735 zl3vni
= zl3vni_from_vrf(vlan_if
->vrf_id
);
8737 listnode_add_sort(zl3vni
->l2vnis
, zvni
);
8740 if (IS_ZEBRA_DEBUG_VXLAN
) {
8741 char addr_buf1
[INET_ADDRSTRLEN
];
8742 char addr_buf2
[INET_ADDRSTRLEN
];
8744 inet_ntop(AF_INET
, &vxl
->vtep_ip
,
8745 addr_buf1
, INET_ADDRSTRLEN
);
8746 inet_ntop(AF_INET
, &vxl
->mcast_grp
,
8747 addr_buf2
, INET_ADDRSTRLEN
);
8750 "Add L2-VNI %u VRF %s intf %s(%u) VLAN %u local IP %s mcast_grp %s master %u",
8752 vlan_if
? vrf_id_to_name(vlan_if
->vrf_id
)
8754 ifp
->name
, ifp
->ifindex
, vxl
->access_vlan
,
8755 addr_buf1
, addr_buf2
,
8756 zif
->brslave_info
.bridge_ifindex
);
8759 /* If down or not mapped to a bridge, we're done. */
8760 if (!if_is_operative(ifp
) || !zif
->brslave_info
.br_if
)
8764 zvni_send_add_to_client(zvni
);
8766 /* Read and populate local MACs and neighbors */
8767 zvni_read_mac_neigh(zvni
, ifp
);
8773 int zebra_vxlan_process_vrf_vni_cmd(struct zebra_vrf
*zvrf
, vni_t vni
,
8774 char *err
, int err_str_sz
, int filter
,
8777 zebra_l3vni_t
*zl3vni
= NULL
;
8778 struct zebra_vrf
*zvrf_evpn
= NULL
;
8780 zvrf_evpn
= zebra_vrf_get_evpn();
8784 if (IS_ZEBRA_DEBUG_VXLAN
)
8785 zlog_debug("vrf %s vni %u %s", zvrf_name(zvrf
), vni
,
8786 add
? "ADD" : "DEL");
8790 zebra_vxlan_handle_vni_transition(zvrf
, vni
, add
);
8792 /* check if the vni is already present under zvrf */
8794 snprintf(err
, err_str_sz
,
8795 "VNI is already configured under the vrf");
8799 /* check if this VNI is already present in the system */
8800 zl3vni
= zl3vni_lookup(vni
);
8802 snprintf(err
, err_str_sz
,
8803 "VNI is already configured as L3-VNI");
8807 /* add the L3-VNI to the global table */
8808 zl3vni
= zl3vni_add(vni
, zvrf_id(zvrf
));
8810 snprintf(err
, err_str_sz
, "Could not add L3-VNI");
8814 /* associate the vrf with vni */
8817 /* set the filter in l3vni to denote if we are using l3vni only
8821 SET_FLAG(zl3vni
->filter
, PREFIX_ROUTES_ONLY
);
8823 /* associate with vxlan-intf;
8824 * we need to associate with the vxlan-intf first
8826 zl3vni
->vxlan_if
= zl3vni_map_to_vxlan_if(zl3vni
);
8828 /* associate with corresponding SVI interface, we can associate
8829 * with svi-if only after vxlan interface association is
8832 zl3vni
->svi_if
= zl3vni_map_to_svi_if(zl3vni
);
8834 /* formulate l2vni list */
8835 hash_iterate(zvrf_evpn
->vni_table
, zvni_add_to_l3vni_list
,
8838 if (is_l3vni_oper_up(zl3vni
))
8839 zebra_vxlan_process_l3vni_oper_up(zl3vni
);
8842 zl3vni
= zl3vni_lookup(vni
);
8844 snprintf(err
, err_str_sz
, "VNI doesn't exist");
8848 if (zvrf
->l3vni
!= vni
) {
8849 snprintf(err
, err_str_sz
,
8850 "VNI %d doesn't exist in VRF: %s",
8851 vni
, zvrf
->vrf
->name
);
8855 if (filter
&& !CHECK_FLAG(zl3vni
->filter
, PREFIX_ROUTES_ONLY
)) {
8856 snprintf(err
, ERR_STR_SZ
,
8857 "prefix-routes-only is not set for the vni");
8861 zebra_vxlan_process_l3vni_oper_down(zl3vni
);
8863 /* delete and uninstall all rmacs */
8864 hash_iterate(zl3vni
->rmac_table
, zl3vni_del_rmac_hash_entry
,
8867 /* delete and uninstall all next-hops */
8868 hash_iterate(zl3vni
->nh_table
, zl3vni_del_nh_hash_entry
,
8874 zebra_vxlan_handle_vni_transition(zvrf
, vni
, add
);
8879 int zebra_vxlan_vrf_enable(struct zebra_vrf
*zvrf
)
8881 zebra_l3vni_t
*zl3vni
= NULL
;
8884 zl3vni
= zl3vni_lookup(zvrf
->l3vni
);
8888 zl3vni
->vrf_id
= zvrf_id(zvrf
);
8889 if (is_l3vni_oper_up(zl3vni
))
8890 zebra_vxlan_process_l3vni_oper_up(zl3vni
);
8894 int zebra_vxlan_vrf_disable(struct zebra_vrf
*zvrf
)
8896 zebra_l3vni_t
*zl3vni
= NULL
;
8899 zl3vni
= zl3vni_lookup(zvrf
->l3vni
);
8903 zl3vni
->vrf_id
= VRF_UNKNOWN
;
8904 zebra_vxlan_process_l3vni_oper_down(zl3vni
);
8908 int zebra_vxlan_vrf_delete(struct zebra_vrf
*zvrf
)
8910 zebra_l3vni_t
*zl3vni
= NULL
;
8914 zl3vni
= zl3vni_lookup(zvrf
->l3vni
);
8920 zebra_vxlan_handle_vni_transition(zvrf
, vni
, 0);
8926 * Handle message from client to specify the flooding mechanism for
8927 * BUM packets. The default is to do head-end (ingress) replication
8928 * and the other supported option is to disable it. This applies to
8929 * all BUM traffic and disabling it applies to both the transmit and
8930 * receive direction.
8932 void zebra_vxlan_flood_control(ZAPI_HANDLER_ARGS
)
8935 enum vxlan_flood_control flood_ctrl
;
8937 if (!EVPN_ENABLED(zvrf
)) {
8938 zlog_err("EVPN flood control for non-EVPN VRF %u",
8944 STREAM_GETC(s
, flood_ctrl
);
8946 if (IS_ZEBRA_DEBUG_VXLAN
)
8947 zlog_debug("EVPN flood control %u, currently %u",
8948 flood_ctrl
, zvrf
->vxlan_flood_ctrl
);
8950 if (zvrf
->vxlan_flood_ctrl
== flood_ctrl
)
8953 zvrf
->vxlan_flood_ctrl
= flood_ctrl
;
8955 /* Install or uninstall flood entries corresponding to
8958 hash_iterate(zvrf
->vni_table
, zvni_handle_flooding_remote_vteps
,
8966 * Handle message from client to enable/disable advertisement of svi macip
8969 void zebra_vxlan_advertise_svi_macip(ZAPI_HANDLER_ARGS
)
8974 zebra_vni_t
*zvni
= NULL
;
8975 struct interface
*ifp
= NULL
;
8977 if (!EVPN_ENABLED(zvrf
)) {
8978 zlog_debug("EVPN SVI-MACIP Adv for non-EVPN VRF %u",
8984 STREAM_GETC(s
, advertise
);
8985 STREAM_GETL(s
, vni
);
8988 if (IS_ZEBRA_DEBUG_VXLAN
)
8989 zlog_debug("EVPN SVI-MACIP Adv %s, currently %s",
8990 advertise
? "enabled" : "disabled",
8991 advertise_gw_macip_enabled(NULL
)
8995 if (zvrf
->advertise_svi_macip
== advertise
)
9000 zvrf
->advertise_svi_macip
= advertise
;
9001 hash_iterate(zvrf
->vni_table
,
9002 zvni_gw_macip_add_for_vni_hash
, NULL
);
9004 hash_iterate(zvrf
->vni_table
,
9005 zvni_svi_macip_del_for_vni_hash
, NULL
);
9006 zvrf
->advertise_svi_macip
= advertise
;
9010 struct zebra_if
*zif
= NULL
;
9011 struct zebra_l2info_vxlan zl2_info
;
9012 struct interface
*vlan_if
= NULL
;
9014 zvni
= zvni_lookup(vni
);
9018 if (IS_ZEBRA_DEBUG_VXLAN
)
9020 "EVPN SVI macip Adv %s on VNI %d , currently %s",
9021 advertise
? "enabled" : "disabled", vni
,
9022 advertise_svi_macip_enabled(zvni
)
9026 if (zvni
->advertise_svi_macip
== advertise
)
9029 ifp
= zvni
->vxlan_if
;
9035 /* If down or not mapped to a bridge, we're done. */
9036 if (!if_is_operative(ifp
) || !zif
->brslave_info
.br_if
)
9039 zl2_info
= zif
->l2info
.vxl
;
9041 vlan_if
= zvni_map_to_svi(zl2_info
.access_vlan
,
9042 zif
->brslave_info
.br_if
);
9047 zvni
->advertise_svi_macip
= advertise
;
9048 /* Add primary SVI MAC-IP */
9049 zvni_add_macip_for_intf(vlan_if
, zvni
);
9051 /* Del primary MAC-IP */
9052 zvni_del_macip_for_intf(vlan_if
, zvni
);
9053 zvni
->advertise_svi_macip
= advertise
;
9062 * Handle message from client to enable/disable advertisement of g/w macip
9065 void zebra_vxlan_advertise_subnet(ZAPI_HANDLER_ARGS
)
9070 zebra_vni_t
*zvni
= NULL
;
9071 struct interface
*ifp
= NULL
;
9072 struct zebra_if
*zif
= NULL
;
9073 struct zebra_l2info_vxlan zl2_info
;
9074 struct interface
*vlan_if
= NULL
;
9076 if (!EVPN_ENABLED(zvrf
)) {
9077 zlog_debug("EVPN GW-MACIP Adv for non-EVPN VRF %u",
9083 STREAM_GETC(s
, advertise
);
9084 vni
= stream_get3(s
);
9086 zvni
= zvni_lookup(vni
);
9090 if (zvni
->advertise_subnet
== advertise
)
9093 if (IS_ZEBRA_DEBUG_VXLAN
)
9094 zlog_debug("EVPN subnet Adv %s on VNI %d , currently %s",
9095 advertise
? "enabled" : "disabled", vni
,
9096 zvni
->advertise_subnet
? "enabled" : "disabled");
9099 zvni
->advertise_subnet
= advertise
;
9101 ifp
= zvni
->vxlan_if
;
9107 /* If down or not mapped to a bridge, we're done. */
9108 if (!if_is_operative(ifp
) || !zif
->brslave_info
.br_if
)
9111 zl2_info
= zif
->l2info
.vxl
;
9114 zvni_map_to_svi(zl2_info
.access_vlan
, zif
->brslave_info
.br_if
);
9118 if (zvni
->advertise_subnet
)
9119 zvni_advertise_subnet(zvni
, vlan_if
, 1);
9121 zvni_advertise_subnet(zvni
, vlan_if
, 0);
9128 * Handle message from client to enable/disable advertisement of g/w macip
9131 void zebra_vxlan_advertise_gw_macip(ZAPI_HANDLER_ARGS
)
9136 zebra_vni_t
*zvni
= NULL
;
9137 struct interface
*ifp
= NULL
;
9139 if (!EVPN_ENABLED(zvrf
)) {
9140 zlog_debug("EVPN GW-MACIP Adv for non-EVPN VRF %u",
9146 STREAM_GETC(s
, advertise
);
9147 STREAM_GETL(s
, vni
);
9150 if (IS_ZEBRA_DEBUG_VXLAN
)
9151 zlog_debug("EVPN gateway macip Adv %s, currently %s",
9152 advertise
? "enabled" : "disabled",
9153 advertise_gw_macip_enabled(NULL
)
9157 if (zvrf
->advertise_gw_macip
== advertise
)
9160 zvrf
->advertise_gw_macip
= advertise
;
9162 if (advertise_gw_macip_enabled(zvni
))
9163 hash_iterate(zvrf
->vni_table
,
9164 zvni_gw_macip_add_for_vni_hash
, NULL
);
9166 hash_iterate(zvrf
->vni_table
,
9167 zvni_gw_macip_del_for_vni_hash
, NULL
);
9170 struct zebra_if
*zif
= NULL
;
9171 struct zebra_l2info_vxlan zl2_info
;
9172 struct interface
*vlan_if
= NULL
;
9173 struct interface
*vrr_if
= NULL
;
9175 zvni
= zvni_lookup(vni
);
9179 if (IS_ZEBRA_DEBUG_VXLAN
)
9181 "EVPN gateway macip Adv %s on VNI %d , currently %s",
9182 advertise
? "enabled" : "disabled", vni
,
9183 advertise_gw_macip_enabled(zvni
) ? "enabled"
9186 if (zvni
->advertise_gw_macip
== advertise
)
9189 zvni
->advertise_gw_macip
= advertise
;
9191 ifp
= zvni
->vxlan_if
;
9197 /* If down or not mapped to a bridge, we're done. */
9198 if (!if_is_operative(ifp
) || !zif
->brslave_info
.br_if
)
9201 zl2_info
= zif
->l2info
.vxl
;
9203 vlan_if
= zvni_map_to_svi(zl2_info
.access_vlan
,
9204 zif
->brslave_info
.br_if
);
9208 if (advertise_gw_macip_enabled(zvni
)) {
9209 /* Add primary SVI MAC-IP */
9210 zvni_add_macip_for_intf(vlan_if
, zvni
);
9212 /* Add VRR MAC-IP - if any*/
9213 vrr_if
= zebra_get_vrr_intf_for_svi(vlan_if
);
9215 zvni_add_macip_for_intf(vrr_if
, zvni
);
9217 /* Del primary MAC-IP */
9218 zvni_del_macip_for_intf(vlan_if
, zvni
);
9220 /* Del VRR MAC-IP - if any*/
9221 vrr_if
= zebra_get_vrr_intf_for_svi(vlan_if
);
9223 zvni_del_macip_for_intf(vrr_if
, zvni
);
9233 * Handle message from client to learn (or stop learning) about VNIs and MACs.
9234 * When enabled, the VNI hash table will be built and MAC FDB table read;
9235 * when disabled, the entries should be deleted and remote VTEPs and MACs
9236 * uninstalled from the kernel.
9237 * This also informs the setting for BUM handling at the time this change
9238 * occurs; it is relevant only when specifying "learn".
9240 void zebra_vxlan_advertise_all_vni(ZAPI_HANDLER_ARGS
)
9242 struct stream
*s
= NULL
;
9244 enum vxlan_flood_control flood_ctrl
;
9246 /* Mismatch between EVPN VRF and current VRF (should be prevented by
9248 if (is_evpn_enabled() && !EVPN_ENABLED(zvrf
))
9252 STREAM_GETC(s
, advertise
);
9253 STREAM_GETC(s
, flood_ctrl
);
9255 if (IS_ZEBRA_DEBUG_VXLAN
)
9256 zlog_debug("EVPN VRF %s(%u) VNI Adv %s, currently %s, flood control %u",
9257 zvrf_name(zvrf
), zvrf_id(zvrf
),
9258 advertise
? "enabled" : "disabled",
9259 is_evpn_enabled() ? "enabled" : "disabled",
9262 if (zvrf
->advertise_all_vni
== advertise
)
9265 zvrf
->advertise_all_vni
= advertise
;
9266 if (EVPN_ENABLED(zvrf
)) {
9267 zrouter
.evpn_vrf
= zvrf
;
9269 /* Note BUM handling */
9270 zvrf
->vxlan_flood_ctrl
= flood_ctrl
;
9272 /* Build VNI hash table and inform BGP. */
9273 zvni_build_hash_table();
9275 /* Add all SVI (L3 GW) MACs to BGP*/
9276 hash_iterate(zvrf
->vni_table
, zvni_gw_macip_add_for_vni_hash
,
9279 /* Read the MAC FDB */
9280 macfdb_read(zvrf
->zns
);
9282 /* Read neighbors */
9283 neigh_read(zvrf
->zns
);
9285 /* Cleanup VTEPs for all VNIs - uninstall from
9286 * kernel and free entries.
9288 hash_iterate(zvrf
->vni_table
, zvni_cleanup_all
, zvrf
);
9290 /* cleanup all l3vnis */
9291 hash_iterate(zrouter
.l3vni_table
, zl3vni_cleanup_all
, NULL
);
9293 /* Mark as "no EVPN VRF" */
9294 zrouter
.evpn_vrf
= NULL
;
9302 * Allocate VNI hash table for this VRF and do other initialization.
9303 * NOTE: Currently supported only for default VRF.
9305 void zebra_vxlan_init_tables(struct zebra_vrf
*zvrf
)
9309 zvrf
->vni_table
= hash_create(vni_hash_keymake
, vni_hash_cmp
,
9310 "Zebra VRF VNI Table");
9311 zvrf
->vxlan_sg_table
= hash_create(zebra_vxlan_sg_hash_key_make
,
9312 zebra_vxlan_sg_hash_eq
, "Zebra VxLAN SG Table");
9315 /* Cleanup VNI info, but don't free the table. */
9316 void zebra_vxlan_cleanup_tables(struct zebra_vrf
*zvrf
)
9320 hash_iterate(zvrf
->vni_table
, zvni_cleanup_all
, zvrf
);
9321 hash_iterate(zvrf
->vxlan_sg_table
, zebra_vxlan_sg_cleanup
, NULL
);
9324 /* Close all VNI handling */
9325 void zebra_vxlan_close_tables(struct zebra_vrf
*zvrf
)
9329 hash_iterate(zvrf
->vni_table
, zvni_cleanup_all
, zvrf
);
9330 hash_free(zvrf
->vni_table
);
9333 /* init the l3vni table */
9334 void zebra_vxlan_init(void)
9336 zrouter
.l3vni_table
= hash_create(l3vni_hash_keymake
, l3vni_hash_cmp
,
9337 "Zebra VRF L3 VNI table");
9338 zrouter
.evpn_vrf
= NULL
;
9341 /* free l3vni table */
9342 void zebra_vxlan_disable(void)
9344 hash_free(zrouter
.l3vni_table
);
9347 /* get the l3vni svi ifindex */
9348 ifindex_t
get_l3vni_svi_ifindex(vrf_id_t vrf_id
)
9350 zebra_l3vni_t
*zl3vni
= NULL
;
9352 zl3vni
= zl3vni_from_vrf(vrf_id
);
9353 if (!zl3vni
|| !is_l3vni_oper_up(zl3vni
))
9356 return zl3vni
->svi_if
->ifindex
;
9359 static int zebra_vxlan_dad_ip_auto_recovery_exp(struct thread
*t
)
9361 struct zebra_vrf
*zvrf
= NULL
;
9362 zebra_neigh_t
*nbr
= NULL
;
9363 zebra_vni_t
*zvni
= NULL
;
9364 char buf1
[INET6_ADDRSTRLEN
];
9365 char buf2
[ETHER_ADDR_STRLEN
];
9367 nbr
= THREAD_ARG(t
);
9369 /* since this is asynchronous we need sanity checks*/
9370 zvrf
= vrf_info_lookup(nbr
->zvni
->vrf_id
);
9374 zvni
= zvni_lookup(nbr
->zvni
->vni
);
9378 nbr
= zvni_neigh_lookup(zvni
, &nbr
->ip
);
9382 if (IS_ZEBRA_DEBUG_VXLAN
)
9383 zlog_debug("%s: duplicate addr MAC %s IP %s flags 0x%x learn count %u vni %u auto recovery expired",
9384 __PRETTY_FUNCTION__
,
9385 prefix_mac2str(&nbr
->emac
, buf2
, sizeof(buf2
)),
9386 ipaddr2str(&nbr
->ip
, buf1
, sizeof(buf1
)),
9388 nbr
->dad_count
, zvni
->vni
);
9390 UNSET_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
);
9392 nbr
->detect_start_time
.tv_sec
= 0;
9393 nbr
->detect_start_time
.tv_usec
= 0;
9394 nbr
->dad_dup_detect_time
= 0;
9395 nbr
->dad_ip_auto_recovery_timer
= NULL
;
9396 ZEBRA_NEIGH_SET_ACTIVE(nbr
);
9399 if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_LOCAL
)) {
9400 zvni_neigh_send_add_to_client(zvni
->vni
, &nbr
->ip
, &nbr
->emac
,
9401 nbr
->flags
, nbr
->loc_seq
);
9402 } else if (!!CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_REMOTE
)) {
9403 zvni_neigh_install(zvni
, nbr
);
9409 static int zebra_vxlan_dad_mac_auto_recovery_exp(struct thread
*t
)
9411 struct zebra_vrf
*zvrf
= NULL
;
9412 zebra_mac_t
*mac
= NULL
;
9413 zebra_vni_t
*zvni
= NULL
;
9414 struct listnode
*node
= NULL
;
9415 zebra_neigh_t
*nbr
= NULL
;
9416 char buf
[ETHER_ADDR_STRLEN
];
9418 mac
= THREAD_ARG(t
);
9420 /* since this is asynchronous we need sanity checks*/
9421 zvrf
= vrf_info_lookup(mac
->zvni
->vrf_id
);
9425 zvni
= zvni_lookup(mac
->zvni
->vni
);
9429 mac
= zvni_mac_lookup(zvni
, &mac
->macaddr
);
9433 if (IS_ZEBRA_DEBUG_VXLAN
)
9434 zlog_debug("%s: duplicate addr mac %s flags 0x%x learn count %u host count %u auto recovery expired",
9435 __PRETTY_FUNCTION__
,
9436 prefix_mac2str(&mac
->macaddr
, buf
, sizeof(buf
)),
9439 listcount(mac
->neigh_list
));
9441 /* Remove all IPs as duplicate associcated with this MAC */
9442 for (ALL_LIST_ELEMENTS_RO(mac
->neigh_list
, node
, nbr
)) {
9443 if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
)) {
9444 if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_LOCAL
))
9445 ZEBRA_NEIGH_SET_INACTIVE(nbr
);
9446 else if (CHECK_FLAG(nbr
->flags
, ZEBRA_NEIGH_REMOTE
))
9447 zvni_neigh_install(zvni
, nbr
);
9450 UNSET_FLAG(nbr
->flags
, ZEBRA_NEIGH_DUPLICATE
);
9452 nbr
->detect_start_time
.tv_sec
= 0;
9453 nbr
->dad_dup_detect_time
= 0;
9456 UNSET_FLAG(mac
->flags
, ZEBRA_MAC_DUPLICATE
);
9458 mac
->detect_start_time
.tv_sec
= 0;
9459 mac
->detect_start_time
.tv_usec
= 0;
9460 mac
->dad_dup_detect_time
= 0;
9461 mac
->dad_mac_auto_recovery_timer
= NULL
;
9463 if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_LOCAL
)) {
9465 if (zvni_mac_send_add_to_client(zvni
->vni
, &mac
->macaddr
,
9466 mac
->flags
, mac
->loc_seq
))
9469 /* Process all neighbors associated with this MAC. */
9470 zvni_process_neigh_on_local_mac_change(zvni
, mac
, 0);
9472 } else if (CHECK_FLAG(mac
->flags
, ZEBRA_MAC_REMOTE
)) {
9473 zvni_process_neigh_on_remote_mac_add(zvni
, mac
);
9475 /* Install the entry. */
9476 zvni_mac_install(zvni
, mac
);
9482 /************************** vxlan SG cache management ************************/
9483 /* Inform PIM about the mcast group */
9484 static int zebra_vxlan_sg_send(struct prefix_sg
*sg
,
9485 char *sg_str
, uint16_t cmd
)
9487 struct zserv
*client
= NULL
;
9488 struct stream
*s
= NULL
;
9490 client
= zserv_find_client(ZEBRA_ROUTE_PIM
, 0);
9494 s
= stream_new(ZEBRA_MAX_PACKET_SIZ
);
9496 zclient_create_header(s
, cmd
, VRF_DEFAULT
);
9497 stream_putl(s
, IPV4_MAX_BYTELEN
);
9498 stream_put(s
, &sg
->src
.s_addr
, IPV4_MAX_BYTELEN
);
9499 stream_put(s
, &sg
->grp
.s_addr
, IPV4_MAX_BYTELEN
);
9501 /* Write packet size. */
9502 stream_putw_at(s
, 0, stream_get_endp(s
));
9504 if (IS_ZEBRA_DEBUG_VXLAN
)
9507 (cmd
== ZEBRA_VXLAN_SG_ADD
) ? "add" : "del", sg_str
,
9508 zebra_route_string(client
->proto
));
9510 if (cmd
== ZEBRA_VXLAN_SG_ADD
)
9511 client
->vxlan_sg_add_cnt
++;
9513 client
->vxlan_sg_del_cnt
++;
9515 return zserv_send_message(client
, s
);
9518 static unsigned int zebra_vxlan_sg_hash_key_make(const void *p
)
9520 const zebra_vxlan_sg_t
*vxlan_sg
= p
;
9522 return (jhash_2words(vxlan_sg
->sg
.src
.s_addr
,
9523 vxlan_sg
->sg
.grp
.s_addr
, 0));
9526 static bool zebra_vxlan_sg_hash_eq(const void *p1
, const void *p2
)
9528 const zebra_vxlan_sg_t
*sg1
= p1
;
9529 const zebra_vxlan_sg_t
*sg2
= p2
;
9531 return ((sg1
->sg
.src
.s_addr
== sg2
->sg
.src
.s_addr
)
9532 && (sg1
->sg
.grp
.s_addr
== sg2
->sg
.grp
.s_addr
));
9535 static zebra_vxlan_sg_t
*zebra_vxlan_sg_new(struct zebra_vrf
*zvrf
,
9536 struct prefix_sg
*sg
)
9538 zebra_vxlan_sg_t
*vxlan_sg
;
9540 vxlan_sg
= XCALLOC(MTYPE_ZVXLAN_SG
, sizeof(*vxlan_sg
));
9542 vxlan_sg
->zvrf
= zvrf
;
9544 prefix_sg2str(sg
, vxlan_sg
->sg_str
);
9546 vxlan_sg
= hash_get(zvrf
->vxlan_sg_table
, vxlan_sg
, hash_alloc_intern
);
9548 if (IS_ZEBRA_DEBUG_VXLAN
)
9549 zlog_debug("vxlan SG %s created", vxlan_sg
->sg_str
);
9554 static zebra_vxlan_sg_t
*zebra_vxlan_sg_find(struct zebra_vrf
*zvrf
,
9555 struct prefix_sg
*sg
)
9557 zebra_vxlan_sg_t lookup
;
9560 return hash_lookup(zvrf
->vxlan_sg_table
, &lookup
);
9563 static zebra_vxlan_sg_t
*zebra_vxlan_sg_add(struct zebra_vrf
*zvrf
,
9564 struct prefix_sg
*sg
)
9566 zebra_vxlan_sg_t
*vxlan_sg
;
9567 zebra_vxlan_sg_t
*parent
= NULL
;
9570 vxlan_sg
= zebra_vxlan_sg_find(zvrf
, sg
);
9574 /* create a *G entry for every BUM group implicitly -
9575 * 1. The SG entry is used by pimd to setup the vxlan-origination-mroute
9576 * 2. the XG entry is used by pimd to setup the
9577 * vxlan-termination-mroute
9579 if (sg
->src
.s_addr
) {
9580 memset(&sip
, 0, sizeof(sip
));
9581 parent
= zebra_vxlan_sg_do_ref(zvrf
, sip
, sg
->grp
);
9586 vxlan_sg
= zebra_vxlan_sg_new(zvrf
, sg
);
9589 zebra_vxlan_sg_do_deref(zvrf
, sip
, sg
->grp
);
9593 zebra_vxlan_sg_send(sg
, vxlan_sg
->sg_str
, ZEBRA_VXLAN_SG_ADD
);
9598 static void zebra_vxlan_sg_del(zebra_vxlan_sg_t
*vxlan_sg
)
9601 struct zebra_vrf
*zvrf
;
9603 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
9607 /* On SG entry deletion remove the reference to its parent XG
9610 if (vxlan_sg
->sg
.src
.s_addr
) {
9611 memset(&sip
, 0, sizeof(sip
));
9612 zebra_vxlan_sg_do_deref(zvrf
, sip
, vxlan_sg
->sg
.grp
);
9615 zebra_vxlan_sg_send(&vxlan_sg
->sg
, vxlan_sg
->sg_str
,
9616 ZEBRA_VXLAN_SG_DEL
);
9618 hash_release(vxlan_sg
->zvrf
->vxlan_sg_table
, vxlan_sg
);
9620 if (IS_ZEBRA_DEBUG_VXLAN
)
9621 zlog_debug("VXLAN SG %s deleted", vxlan_sg
->sg_str
);
9623 XFREE(MTYPE_ZVXLAN_SG
, vxlan_sg
);
9626 static void zebra_vxlan_sg_do_deref(struct zebra_vrf
*zvrf
,
9627 struct in_addr sip
, struct in_addr mcast_grp
)
9629 zebra_vxlan_sg_t
*vxlan_sg
;
9630 struct prefix_sg sg
;
9632 sg
.family
= AF_INET
;
9633 sg
.prefixlen
= IPV4_MAX_BYTELEN
;
9636 vxlan_sg
= zebra_vxlan_sg_find(zvrf
, &sg
);
9640 if (vxlan_sg
->ref_cnt
)
9641 --vxlan_sg
->ref_cnt
;
9643 if (!vxlan_sg
->ref_cnt
)
9644 zebra_vxlan_sg_del(vxlan_sg
);
9647 static zebra_vxlan_sg_t
*zebra_vxlan_sg_do_ref(struct zebra_vrf
*zvrf
,
9648 struct in_addr sip
, struct in_addr mcast_grp
)
9650 zebra_vxlan_sg_t
*vxlan_sg
;
9651 struct prefix_sg sg
;
9653 sg
.family
= AF_INET
;
9654 sg
.prefixlen
= IPV4_MAX_BYTELEN
;
9657 vxlan_sg
= zebra_vxlan_sg_add(zvrf
, &sg
);
9659 ++vxlan_sg
->ref_cnt
;
9664 static void zebra_vxlan_sg_deref(struct in_addr local_vtep_ip
,
9665 struct in_addr mcast_grp
)
9667 struct zebra_vrf
*zvrf
;
9669 if (!local_vtep_ip
.s_addr
|| !mcast_grp
.s_addr
)
9672 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
9676 zebra_vxlan_sg_do_deref(zvrf
, local_vtep_ip
, mcast_grp
);
9679 static void zebra_vxlan_sg_ref(struct in_addr local_vtep_ip
,
9680 struct in_addr mcast_grp
)
9682 struct zebra_vrf
*zvrf
;
9684 if (!local_vtep_ip
.s_addr
|| !mcast_grp
.s_addr
)
9687 zvrf
= vrf_info_lookup(VRF_DEFAULT
);
9690 zebra_vxlan_sg_do_ref(zvrf
, local_vtep_ip
, mcast_grp
);
9693 static void zebra_vxlan_sg_cleanup(struct hash_backet
*backet
, void *arg
)
9695 zebra_vxlan_sg_t
*vxlan_sg
= (zebra_vxlan_sg_t
*)backet
->data
;
9697 zebra_vxlan_sg_del(vxlan_sg
);
9700 /************************** EVPN BGP config management ************************/
9701 /* Notify Local MACs to the clienti, skips GW MAC */
9702 static void zvni_send_mac_hash_entry_to_client(struct hash_bucket
*bucket
,
9705 struct mac_walk_ctx
*wctx
= arg
;
9706 zebra_mac_t
*zmac
= bucket
->data
;
9708 if (CHECK_FLAG(zmac
->flags
, ZEBRA_MAC_DEF_GW
))
9711 if (CHECK_FLAG(zmac
->flags
, ZEBRA_MAC_LOCAL
))
9712 zvni_mac_send_add_to_client(wctx
->zvni
->vni
, &zmac
->macaddr
,
9713 zmac
->flags
, zmac
->loc_seq
);
9716 /* Iterator to Notify Local MACs of a L2VNI */
9717 static void zvni_send_mac_to_client(zebra_vni_t
*zvni
)
9719 struct mac_walk_ctx wctx
;
9721 if (!zvni
->mac_table
)
9724 memset(&wctx
, 0, sizeof(struct mac_walk_ctx
));
9727 hash_iterate(zvni
->mac_table
, zvni_send_mac_hash_entry_to_client
,
9731 /* Notify Neighbor entries to the Client, skips the GW entry */
9732 static void zvni_send_neigh_hash_entry_to_client(struct hash_bucket
*bucket
,
9735 struct mac_walk_ctx
*wctx
= arg
;
9736 zebra_neigh_t
*zn
= bucket
->data
;
9737 zebra_mac_t
*zmac
= NULL
;
9739 if (CHECK_FLAG(zn
->flags
, ZEBRA_NEIGH_DEF_GW
))
9742 if (CHECK_FLAG(zn
->flags
, ZEBRA_NEIGH_LOCAL
) &&
9743 IS_ZEBRA_NEIGH_ACTIVE(zn
)) {
9744 zmac
= zvni_mac_lookup(wctx
->zvni
, &zn
->emac
);
9748 zvni_neigh_send_add_to_client(wctx
->zvni
->vni
, &zn
->ip
,
9749 &zn
->emac
, zn
->flags
,
9754 /* Iterator of a specific L2VNI */
9755 static void zvni_send_neigh_to_client(zebra_vni_t
*zvni
)
9757 struct neigh_walk_ctx wctx
;
9759 memset(&wctx
, 0, sizeof(struct neigh_walk_ctx
));
9762 hash_iterate(zvni
->neigh_table
, zvni_send_neigh_hash_entry_to_client
,
9766 static void zvni_evpn_cfg_cleanup(struct hash_bucket
*bucket
, void *ctxt
)
9768 zebra_vni_t
*zvni
= NULL
;
9770 zvni
= (zebra_vni_t
*)bucket
->data
;
9771 zvni
->advertise_gw_macip
= 0;
9772 zvni
->advertise_svi_macip
= 0;
9773 zvni
->advertise_subnet
= 0;
9775 zvni_neigh_del_all(zvni
, 1, 0,
9776 DEL_REMOTE_NEIGH
| DEL_REMOTE_NEIGH_FROM_VTEP
);
9777 zvni_mac_del_all(zvni
, 1, 0,
9778 DEL_REMOTE_MAC
| DEL_REMOTE_MAC_FROM_VTEP
);
9779 zvni_vtep_del_all(zvni
, 1);
9782 /* Cleanup EVPN configuration of a specific VRF */
9783 static void zebra_evpn_vrf_cfg_cleanup(struct zebra_vrf
*zvrf
)
9785 zebra_l3vni_t
*zl3vni
= NULL
;
9787 zvrf
->advertise_all_vni
= 0;
9788 zvrf
->advertise_gw_macip
= 0;
9789 zvrf
->advertise_svi_macip
= 0;
9790 zvrf
->vxlan_flood_ctrl
= VXLAN_FLOOD_HEAD_END_REPL
;
9792 hash_iterate(zvrf
->vni_table
, zvni_evpn_cfg_cleanup
, NULL
);
9795 zl3vni
= zl3vni_lookup(zvrf
->l3vni
);
9797 /* delete and uninstall all rmacs */
9798 hash_iterate(zl3vni
->rmac_table
, zl3vni_del_rmac_hash_entry
,
9800 /* delete and uninstall all next-hops */
9801 hash_iterate(zl3vni
->nh_table
, zl3vni_del_nh_hash_entry
,
9806 /* Cleanup BGP EVPN configuration upon client disconnect */
9807 static int zebra_evpn_cfg_clean_up(struct zserv
*client
)
9810 struct zebra_vrf
*zvrf
;
9812 if (client
->proto
!= ZEBRA_ROUTE_BGP
)
9815 RB_FOREACH (vrf
, vrf_id_head
, &vrfs_by_id
) {
9818 zebra_evpn_vrf_cfg_cleanup(zvrf
);
9824 /* Cleanup BGP EVPN configuration upon client disconnect */
9825 extern void zebra_evpn_init(void)
9827 hook_register(zserv_client_close
, zebra_evpn_cfg_clean_up
);