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1 | /* | |
2 | * Zebra EVPN for VxLAN code | |
3 | * Copyright (C) 2016, 2017 Cumulus Networks, Inc. | |
4 | * | |
5 | * This file is part of FRR. | |
6 | * | |
7 | * FRR is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * FRR is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with FRR; see the file COPYING. If not, write to the Free | |
19 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | * 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "hash.h" | |
26 | #include "if.h" | |
27 | #include "jhash.h" | |
28 | #include "linklist.h" | |
29 | #include "log.h" | |
30 | #include "memory.h" | |
31 | #include "prefix.h" | |
32 | #include "stream.h" | |
33 | #include "table.h" | |
34 | #include "vlan.h" | |
35 | #include "vxlan.h" | |
36 | #ifdef GNU_LINUX | |
37 | #include <linux/neighbour.h> | |
38 | #endif | |
39 | ||
40 | #include "zebra/zebra_router.h" | |
41 | #include "zebra/debug.h" | |
42 | #include "zebra/interface.h" | |
43 | #include "zebra/rib.h" | |
44 | #include "zebra/rt.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/zserv.h" | |
54 | ||
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 | ||
62 | /* definitions */ | |
63 | ||
64 | /* static function declarations */ | |
65 | static int ip_prefix_send_to_client(vrf_id_t vrf_id, struct prefix *p, | |
66 | uint16_t cmd); | |
67 | static void zvni_print_neigh(zebra_neigh_t *n, void *ctxt, json_object *json); | |
68 | static void zvni_print_neigh_hash(struct hash_backet *backet, void *ctxt); | |
69 | static void zvni_print_dad_neigh_hash(struct hash_backet *backet, void *ctxt); | |
70 | static void zvni_print_neigh_hash_all_vni(struct hash_backet *backet, | |
71 | void **args); | |
72 | static void zl3vni_print_nh(zebra_neigh_t *n, struct vty *vty, | |
73 | json_object *json); | |
74 | static void zl3vni_print_rmac(zebra_mac_t *zrmac, struct vty *vty, | |
75 | json_object *json); | |
76 | static void zvni_print_mac(zebra_mac_t *mac, void *ctxt, json_object *json); | |
77 | static void zvni_print_mac_hash(struct hash_backet *backet, void *ctxt); | |
78 | static void zvni_print_mac_hash_all_vni(struct hash_backet *backet, void *ctxt); | |
79 | static void zvni_print(zebra_vni_t *zvni, void **ctxt); | |
80 | static void zvni_print_hash(struct hash_backet *backet, void *ctxt[]); | |
81 | ||
82 | static int zvni_macip_send_msg_to_client(vni_t vni, struct ethaddr *macaddr, | |
83 | struct ipaddr *ip, uint8_t flags, | |
84 | uint32_t seq, uint16_t cmd); | |
85 | static unsigned int neigh_hash_keymake(void *p); | |
86 | static void *zvni_neigh_alloc(void *p); | |
87 | static zebra_neigh_t *zvni_neigh_add(zebra_vni_t *zvni, struct ipaddr *ip, | |
88 | struct ethaddr *mac); | |
89 | static int zvni_neigh_del(zebra_vni_t *zvni, zebra_neigh_t *n); | |
90 | static void zvni_neigh_del_from_vtep(zebra_vni_t *zvni, int uninstall, | |
91 | struct in_addr *r_vtep_ip); | |
92 | static void zvni_neigh_del_all(zebra_vni_t *zvni, int uninstall, int upd_client, | |
93 | uint32_t flags); | |
94 | static zebra_neigh_t *zvni_neigh_lookup(zebra_vni_t *zvni, struct ipaddr *ip); | |
95 | static int zvni_neigh_send_add_to_client(vni_t vni, struct ipaddr *ip, | |
96 | struct ethaddr *macaddr, | |
97 | uint8_t flags, uint32_t seq); | |
98 | static int zvni_neigh_send_del_to_client(vni_t vni, struct ipaddr *ip, | |
99 | struct ethaddr *macaddr, | |
100 | uint8_t flags); | |
101 | static int zvni_neigh_install(zebra_vni_t *zvni, zebra_neigh_t *n); | |
102 | static int zvni_neigh_uninstall(zebra_vni_t *zvni, zebra_neigh_t *n); | |
103 | static zebra_vni_t *zvni_from_svi(struct interface *ifp, | |
104 | struct interface *br_if); | |
105 | static struct interface *zvni_map_to_svi(vlanid_t vid, struct interface *br_if); | |
106 | ||
107 | /* l3-vni next-hop neigh related APIs */ | |
108 | static zebra_neigh_t *zl3vni_nh_lookup(zebra_l3vni_t *zl3vni, | |
109 | struct ipaddr *ip); | |
110 | static void *zl3vni_nh_alloc(void *p); | |
111 | static zebra_neigh_t *zl3vni_nh_add(zebra_l3vni_t *zl3vni, | |
112 | struct ipaddr *vtep_ip, | |
113 | struct ethaddr *rmac); | |
114 | static int zl3vni_nh_del(zebra_l3vni_t *zl3vni, zebra_neigh_t *n); | |
115 | static int zl3vni_nh_install(zebra_l3vni_t *zl3vni, zebra_neigh_t *n); | |
116 | static int zl3vni_nh_uninstall(zebra_l3vni_t *zl3vni, zebra_neigh_t *n); | |
117 | ||
118 | /* l3-vni rmac related APIs */ | |
119 | static void zl3vni_print_rmac_hash(struct hash_backet *, void *); | |
120 | static zebra_mac_t *zl3vni_rmac_lookup(zebra_l3vni_t *zl3vni, | |
121 | struct ethaddr *rmac); | |
122 | static void *zl3vni_rmac_alloc(void *p); | |
123 | static zebra_mac_t *zl3vni_rmac_add(zebra_l3vni_t *zl3vni, | |
124 | struct ethaddr *rmac); | |
125 | static int zl3vni_rmac_del(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac); | |
126 | static int zl3vni_rmac_install(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac); | |
127 | static int zl3vni_rmac_uninstall(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac); | |
128 | ||
129 | /* l3-vni related APIs*/ | |
130 | static zebra_l3vni_t *zl3vni_lookup(vni_t vni); | |
131 | static void *zl3vni_alloc(void *p); | |
132 | static zebra_l3vni_t *zl3vni_add(vni_t vni, vrf_id_t vrf_id); | |
133 | static int zl3vni_del(zebra_l3vni_t *zl3vni); | |
134 | static zebra_l3vni_t *zl3vni_from_vrf(vrf_id_t); | |
135 | static struct interface *zl3vni_map_to_svi_if(zebra_l3vni_t *zl3vni); | |
136 | static struct interface *zl3vni_map_to_vxlan_if(zebra_l3vni_t *zl3vni); | |
137 | static void zebra_vxlan_process_l3vni_oper_up(zebra_l3vni_t *zl3vni); | |
138 | static void zebra_vxlan_process_l3vni_oper_down(zebra_l3vni_t *zl3vni); | |
139 | ||
140 | static unsigned int mac_hash_keymake(void *p); | |
141 | static bool mac_cmp(const void *p1, const void *p2); | |
142 | static void *zvni_mac_alloc(void *p); | |
143 | static zebra_mac_t *zvni_mac_add(zebra_vni_t *zvni, struct ethaddr *macaddr); | |
144 | static int zvni_mac_del(zebra_vni_t *zvni, zebra_mac_t *mac); | |
145 | static void zvni_mac_del_from_vtep(zebra_vni_t *zvni, int uninstall, | |
146 | struct in_addr *r_vtep_ip); | |
147 | static void zvni_mac_del_all(zebra_vni_t *zvni, int uninstall, int upd_client, | |
148 | uint32_t flags); | |
149 | static zebra_mac_t *zvni_mac_lookup(zebra_vni_t *zvni, struct ethaddr *macaddr); | |
150 | static int zvni_mac_send_add_to_client(vni_t vni, struct ethaddr *macaddr, | |
151 | uint8_t flags, uint32_t seq); | |
152 | static int zvni_mac_send_del_to_client(vni_t vni, struct ethaddr *macaddr); | |
153 | static zebra_vni_t *zvni_map_vlan(struct interface *ifp, | |
154 | struct interface *br_if, vlanid_t vid); | |
155 | static int zvni_mac_install(zebra_vni_t *zvni, zebra_mac_t *mac); | |
156 | static int zvni_mac_uninstall(zebra_vni_t *zvni, zebra_mac_t *mac); | |
157 | static void zvni_install_mac_hash(struct hash_backet *backet, void *ctxt); | |
158 | ||
159 | static unsigned int vni_hash_keymake(void *p); | |
160 | static void *zvni_alloc(void *p); | |
161 | static zebra_vni_t *zvni_lookup(vni_t vni); | |
162 | static zebra_vni_t *zvni_add(vni_t vni); | |
163 | static int zvni_del(zebra_vni_t *zvni); | |
164 | static int zvni_send_add_to_client(zebra_vni_t *zvni); | |
165 | static int zvni_send_del_to_client(vni_t vni); | |
166 | static void zvni_build_hash_table(); | |
167 | static int zvni_vtep_match(struct in_addr *vtep_ip, zebra_vtep_t *zvtep); | |
168 | static zebra_vtep_t *zvni_vtep_find(zebra_vni_t *zvni, struct in_addr *vtep_ip); | |
169 | static zebra_vtep_t *zvni_vtep_add(zebra_vni_t *zvni, struct in_addr *vtep_ip); | |
170 | static int zvni_vtep_del(zebra_vni_t *zvni, zebra_vtep_t *zvtep); | |
171 | static int zvni_vtep_del_all(zebra_vni_t *zvni, int uninstall); | |
172 | static int zvni_vtep_install(zebra_vni_t *zvni, struct in_addr *vtep_ip); | |
173 | static int zvni_vtep_uninstall(zebra_vni_t *zvni, struct in_addr *vtep_ip); | |
174 | static int zvni_del_macip_for_intf(struct interface *ifp, zebra_vni_t *zvni); | |
175 | static int zvni_add_macip_for_intf(struct interface *ifp, zebra_vni_t *zvni); | |
176 | static int zvni_gw_macip_add(struct interface *ifp, zebra_vni_t *zvni, | |
177 | struct ethaddr *macaddr, struct ipaddr *ip); | |
178 | static int zvni_gw_macip_del(struct interface *ifp, zebra_vni_t *zvni, | |
179 | struct ipaddr *ip); | |
180 | struct interface *zebra_get_vrr_intf_for_svi(struct interface *ifp); | |
181 | static int advertise_gw_macip_enabled(zebra_vni_t *zvni); | |
182 | static int zebra_vxlan_ip_inherit_dad_from_mac(struct zebra_vrf *zvrf, | |
183 | zebra_mac_t *old_zmac, | |
184 | zebra_mac_t *new_zmac, | |
185 | zebra_neigh_t *nbr); | |
186 | static int remote_neigh_count(zebra_mac_t *zmac); | |
187 | static void zvni_deref_ip2mac(zebra_vni_t *zvni, zebra_mac_t *mac); | |
188 | static int zebra_vxlan_dad_mac_auto_recovery_exp(struct thread *t); | |
189 | static int zebra_vxlan_dad_ip_auto_recovery_exp(struct thread *t); | |
190 | static void zebra_vxlan_dup_addr_detect_for_neigh(struct zebra_vrf *zvrf, | |
191 | zebra_neigh_t *nbr, | |
192 | struct in_addr vtep_ip, | |
193 | bool do_dad, | |
194 | bool *is_dup_detect, | |
195 | bool is_local); | |
196 | static void zebra_vxlan_dup_addr_detect_for_mac(struct zebra_vrf *zvrf, | |
197 | zebra_mac_t *mac, | |
198 | struct in_addr vtep_ip, | |
199 | bool do_dad, | |
200 | bool *is_dup_detect, | |
201 | bool is_local); | |
202 | ||
203 | /* Private functions */ | |
204 | static int host_rb_entry_compare(const struct host_rb_entry *hle1, | |
205 | const struct host_rb_entry *hle2) | |
206 | { | |
207 | if (hle1->p.family < hle2->p.family) | |
208 | return -1; | |
209 | ||
210 | if (hle1->p.family > hle2->p.family) | |
211 | return 1; | |
212 | ||
213 | if (hle1->p.prefixlen < hle2->p.prefixlen) | |
214 | return -1; | |
215 | ||
216 | if (hle1->p.prefixlen > hle2->p.prefixlen) | |
217 | return 1; | |
218 | ||
219 | if (hle1->p.family == AF_INET) { | |
220 | if (hle1->p.u.prefix4.s_addr < hle2->p.u.prefix4.s_addr) | |
221 | return -1; | |
222 | ||
223 | if (hle1->p.u.prefix4.s_addr > hle2->p.u.prefix4.s_addr) | |
224 | return 1; | |
225 | ||
226 | return 0; | |
227 | } else if (hle1->p.family == AF_INET6) { | |
228 | return memcmp(&hle1->p.u.prefix6, &hle2->p.u.prefix6, | |
229 | IPV6_MAX_BYTELEN); | |
230 | } else { | |
231 | zlog_debug("%s: Unexpected family type: %d", | |
232 | __PRETTY_FUNCTION__, hle1->p.family); | |
233 | return 0; | |
234 | } | |
235 | } | |
236 | RB_GENERATE(host_rb_tree_entry, host_rb_entry, hl_entry, host_rb_entry_compare); | |
237 | ||
238 | static uint32_t rb_host_count(struct host_rb_tree_entry *hrbe) | |
239 | { | |
240 | struct host_rb_entry *hle; | |
241 | uint32_t count = 0; | |
242 | ||
243 | RB_FOREACH (hle, host_rb_tree_entry, hrbe) | |
244 | count++; | |
245 | ||
246 | return count; | |
247 | } | |
248 | ||
249 | /* | |
250 | * Return number of valid MACs in a VNI's MAC hash table - all | |
251 | * remote MACs and non-internal (auto) local MACs count. | |
252 | */ | |
253 | static uint32_t num_valid_macs(zebra_vni_t *zvni) | |
254 | { | |
255 | unsigned int i; | |
256 | uint32_t num_macs = 0; | |
257 | struct hash *hash; | |
258 | struct hash_backet *hb; | |
259 | zebra_mac_t *mac; | |
260 | ||
261 | hash = zvni->mac_table; | |
262 | if (!hash) | |
263 | return num_macs; | |
264 | for (i = 0; i < hash->size; i++) { | |
265 | for (hb = hash->index[i]; hb; hb = hb->next) { | |
266 | mac = (zebra_mac_t *)hb->data; | |
267 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
268 | || CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) | |
269 | || !CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) | |
270 | num_macs++; | |
271 | } | |
272 | } | |
273 | ||
274 | return num_macs; | |
275 | } | |
276 | ||
277 | static uint32_t num_dup_detected_macs(zebra_vni_t *zvni) | |
278 | { | |
279 | unsigned int i; | |
280 | uint32_t num_macs = 0; | |
281 | struct hash *hash; | |
282 | struct hash_backet *hb; | |
283 | zebra_mac_t *mac; | |
284 | ||
285 | hash = zvni->mac_table; | |
286 | if (!hash) | |
287 | return num_macs; | |
288 | for (i = 0; i < hash->size; i++) { | |
289 | for (hb = hash->index[i]; hb; hb = hb->next) { | |
290 | mac = (zebra_mac_t *)hb->data; | |
291 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
292 | num_macs++; | |
293 | } | |
294 | } | |
295 | ||
296 | return num_macs; | |
297 | } | |
298 | ||
299 | static uint32_t num_dup_detected_neighs(zebra_vni_t *zvni) | |
300 | { | |
301 | unsigned int i; | |
302 | uint32_t num_neighs = 0; | |
303 | struct hash *hash; | |
304 | struct hash_backet *hb; | |
305 | zebra_neigh_t *nbr; | |
306 | ||
307 | hash = zvni->neigh_table; | |
308 | if (!hash) | |
309 | return num_neighs; | |
310 | for (i = 0; i < hash->size; i++) { | |
311 | for (hb = hash->index[i]; hb; hb = hb->next) { | |
312 | nbr = (zebra_neigh_t *)hb->data; | |
313 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) | |
314 | num_neighs++; | |
315 | } | |
316 | } | |
317 | ||
318 | return num_neighs; | |
319 | } | |
320 | ||
321 | static int advertise_gw_macip_enabled(zebra_vni_t *zvni) | |
322 | { | |
323 | struct zebra_vrf *zvrf; | |
324 | ||
325 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
326 | if (zvrf && zvrf->advertise_gw_macip) | |
327 | return 1; | |
328 | ||
329 | if (zvni && zvni->advertise_gw_macip) | |
330 | return 1; | |
331 | ||
332 | return 0; | |
333 | } | |
334 | ||
335 | /* As part Duplicate Address Detection (DAD) for IP mobility | |
336 | * MAC binding changes, ensure to inherit duplicate flag | |
337 | * from MAC. | |
338 | */ | |
339 | static int zebra_vxlan_ip_inherit_dad_from_mac(struct zebra_vrf *zvrf, | |
340 | zebra_mac_t *old_zmac, | |
341 | zebra_mac_t *new_zmac, | |
342 | zebra_neigh_t *nbr) | |
343 | { | |
344 | bool is_old_mac_dup = false; | |
345 | bool is_new_mac_dup = false; | |
346 | ||
347 | if (!zvrf->dup_addr_detect) | |
348 | return 0; | |
349 | /* Check old or new MAC is detected as duplicate | |
350 | * mark this neigh as duplicate | |
351 | */ | |
352 | if (old_zmac) | |
353 | is_old_mac_dup = CHECK_FLAG(old_zmac->flags, | |
354 | ZEBRA_MAC_DUPLICATE); | |
355 | if (new_zmac) | |
356 | is_new_mac_dup = CHECK_FLAG(new_zmac->flags, | |
357 | ZEBRA_MAC_DUPLICATE); | |
358 | /* Old and/or new MAC can be in duplicate state, | |
359 | * based on that IP/Neigh Inherits the flag. | |
360 | * If New MAC is marked duplicate, inherit to the IP. | |
361 | * If old MAC is duplicate but new MAC is not, clear | |
362 | * duplicate flag for IP and reset detection params | |
363 | * and let IP DAD retrigger. | |
364 | */ | |
365 | if (is_new_mac_dup && !CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) { | |
366 | SET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
367 | /* Capture Duplicate detection time */ | |
368 | nbr->dad_dup_detect_time = monotime(NULL); | |
369 | return 1; | |
370 | } else if (is_old_mac_dup && !is_new_mac_dup) { | |
371 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
372 | nbr->dad_count = 0; | |
373 | nbr->detect_start_time.tv_sec = 0; | |
374 | nbr->detect_start_time.tv_usec = 0; | |
375 | } | |
376 | return 0; | |
377 | } | |
378 | ||
379 | static void zebra_vxlan_dup_addr_detect_for_mac(struct zebra_vrf *zvrf, | |
380 | zebra_mac_t *mac, | |
381 | struct in_addr vtep_ip, | |
382 | bool do_dad, | |
383 | bool *is_dup_detect, | |
384 | bool is_local) | |
385 | { | |
386 | zebra_neigh_t *nbr; | |
387 | struct listnode *node = NULL; | |
388 | struct timeval elapsed = {0, 0}; | |
389 | char buf[ETHER_ADDR_STRLEN]; | |
390 | char buf1[INET6_ADDRSTRLEN]; | |
391 | bool reset_params = false; | |
392 | ||
393 | if (!(zvrf->dup_addr_detect && do_dad)) | |
394 | return; | |
395 | ||
396 | /* MAC is detected as duplicate, | |
397 | * Local MAC event -> hold on advertising to BGP. | |
398 | * Remote MAC event -> hold on installing it. | |
399 | */ | |
400 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { | |
401 | if (IS_ZEBRA_DEBUG_VXLAN) | |
402 | zlog_debug( | |
403 | "%s: duplicate addr MAC %s flags 0x%x skip update to client, learn count %u recover time %u", | |
404 | __PRETTY_FUNCTION__, | |
405 | prefix_mac2str(&mac->macaddr, buf, | |
406 | sizeof(buf)), | |
407 | mac->flags, mac->dad_count, | |
408 | zvrf->dad_freeze_time); | |
409 | ||
410 | /* For duplicate MAC do not update | |
411 | * client but update neigh due to | |
412 | * this MAC update. | |
413 | */ | |
414 | if (zvrf->dad_freeze) | |
415 | *is_dup_detect = false; | |
416 | ||
417 | return; | |
418 | } | |
419 | ||
420 | /* Check if detection time (M-secs) expired. | |
421 | * Reset learn count and detection start time. | |
422 | */ | |
423 | monotime_since(&mac->detect_start_time, &elapsed); | |
424 | reset_params = (elapsed.tv_sec > zvrf->dad_time); | |
425 | if (is_local && !reset_params) { | |
426 | /* RFC-7432: A PE/VTEP that detects a MAC mobility | |
427 | * event via LOCAL learning starts an M-second timer. | |
428 | * | |
429 | * NOTE: This is the START of the probe with count is | |
430 | * 0 during LOCAL learn event. | |
431 | * (mac->dad_count == 0 || elapsed.tv_sec >= zvrf->dad_time) | |
432 | */ | |
433 | reset_params = !mac->dad_count; | |
434 | } | |
435 | ||
436 | if (reset_params) { | |
437 | if (IS_ZEBRA_DEBUG_VXLAN) | |
438 | zlog_debug( | |
439 | "%s: duplicate addr MAC %s flags 0x%x detection time passed, reset learn count %u" | |
440 | , __PRETTY_FUNCTION__, | |
441 | prefix_mac2str(&mac->macaddr, buf, | |
442 | sizeof(buf)), | |
443 | mac->flags, mac->dad_count); | |
444 | ||
445 | mac->dad_count = 0; | |
446 | /* Start dup. addr detection (DAD) start time, | |
447 | * ONLY during LOCAL learn. | |
448 | */ | |
449 | if (is_local) | |
450 | monotime(&mac->detect_start_time); | |
451 | ||
452 | } else if (!is_local) { | |
453 | /* For REMOTE MAC, increment detection count | |
454 | * ONLY while in probe window, once window passed, | |
455 | * next local learn event should trigger DAD. | |
456 | */ | |
457 | mac->dad_count++; | |
458 | } | |
459 | ||
460 | /* For LOCAL MAC learn event, once count is reset above via either | |
461 | * initial/start detection time or passed the probe time, the count | |
462 | * needs to be incremented. | |
463 | */ | |
464 | if (is_local) | |
465 | mac->dad_count++; | |
466 | ||
467 | zlog_debug("%s: MAC DAD %s dad_count %u ", | |
468 | __PRETTY_FUNCTION__, | |
469 | prefix_mac2str(&mac->macaddr, buf, sizeof(buf)), | |
470 | mac->dad_count); | |
471 | ||
472 | if (mac->dad_count >= zvrf->dad_max_moves) { | |
473 | flog_warn(EC_ZEBRA_DUP_MAC_DETECTED, | |
474 | "VNI %u: MAC %s detected as duplicate during %s VTEP %s", | |
475 | mac->zvni->vni, | |
476 | prefix_mac2str(&mac->macaddr, buf, sizeof(buf)), | |
477 | is_local ? "local update, last" : | |
478 | "remote update, from", inet_ntoa(vtep_ip)); | |
479 | ||
480 | SET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
481 | ||
482 | /* Capture Duplicate detection time */ | |
483 | mac->dad_dup_detect_time = monotime(NULL); | |
484 | ||
485 | /* Mark all IPs/Neighs as duplicate | |
486 | * associcated with this MAC | |
487 | */ | |
488 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
489 | ||
490 | /* Ony Mark IPs which are Local */ | |
491 | if (!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
492 | continue; | |
493 | ||
494 | SET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
495 | ||
496 | nbr->dad_dup_detect_time = monotime(NULL); | |
497 | ||
498 | flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED, | |
499 | "VNI %u: MAC %s IP %s detected as duplicate during %s update, inherit duplicate from MAC", | |
500 | mac->zvni->vni, | |
501 | prefix_mac2str(&mac->macaddr, | |
502 | buf, sizeof(buf)), | |
503 | ipaddr2str(&nbr->ip, buf1, sizeof(buf1)), | |
504 | is_local ? "local" : "remote"); | |
505 | } | |
506 | ||
507 | /* Start auto recovery timer for this MAC */ | |
508 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
509 | if (zvrf->dad_freeze && zvrf->dad_freeze_time) { | |
510 | if (IS_ZEBRA_DEBUG_VXLAN) | |
511 | zlog_debug( | |
512 | "%s: duplicate addr MAC %s flags 0x%x auto recovery time %u start" | |
513 | , __PRETTY_FUNCTION__, | |
514 | prefix_mac2str(&mac->macaddr, buf, | |
515 | sizeof(buf)), | |
516 | mac->flags, zvrf->dad_freeze_time); | |
517 | ||
518 | thread_add_timer(zebrad.master, | |
519 | zebra_vxlan_dad_mac_auto_recovery_exp, | |
520 | mac, zvrf->dad_freeze_time, | |
521 | &mac->dad_mac_auto_recovery_timer); | |
522 | } | |
523 | ||
524 | /* Do not inform to client (BGPd), | |
525 | * upd_neigh for neigh sequence change. | |
526 | */ | |
527 | if (zvrf->dad_freeze) | |
528 | *is_dup_detect = false; | |
529 | } | |
530 | } | |
531 | ||
532 | static void zebra_vxlan_dup_addr_detect_for_neigh(struct zebra_vrf *zvrf, | |
533 | zebra_neigh_t *nbr, | |
534 | struct in_addr vtep_ip, | |
535 | bool do_dad, | |
536 | bool *is_dup_detect, | |
537 | bool is_local) | |
538 | { | |
539 | ||
540 | struct timeval elapsed = {0, 0}; | |
541 | char buf[ETHER_ADDR_STRLEN]; | |
542 | char buf1[INET6_ADDRSTRLEN]; | |
543 | bool reset_params = false; | |
544 | ||
545 | if (!zvrf->dup_addr_detect) | |
546 | return; | |
547 | ||
548 | /* IP is detected as duplicate or inherit dup | |
549 | * state, hold on to install as remote entry | |
550 | * only if freeze is enabled. | |
551 | */ | |
552 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) { | |
553 | if (IS_ZEBRA_DEBUG_VXLAN) | |
554 | zlog_debug( | |
555 | "%s: duplicate addr MAC %s IP %s flags 0x%x skip installing, learn count %u recover time %u", | |
556 | __PRETTY_FUNCTION__, | |
557 | prefix_mac2str(&nbr->emac, buf, sizeof(buf)), | |
558 | ipaddr2str(&nbr->ip, buf1, sizeof(buf1)), | |
559 | nbr->flags, nbr->dad_count, | |
560 | zvrf->dad_freeze_time); | |
561 | ||
562 | if (zvrf->dad_freeze) | |
563 | *is_dup_detect = true; | |
564 | /* warn-only action, neigh will be installed. | |
565 | * freeze action, it wil not be installed. | |
566 | */ | |
567 | return; | |
568 | } | |
569 | ||
570 | if (!do_dad) | |
571 | return; | |
572 | ||
573 | /* Check if detection time (M-secs) expired. | |
574 | * Reset learn count and detection start time. | |
575 | * During remote mac add, count should already be 1 | |
576 | * via local learning. | |
577 | */ | |
578 | monotime_since(&nbr->detect_start_time, &elapsed); | |
579 | reset_params = (elapsed.tv_sec > zvrf->dad_time); | |
580 | ||
581 | if (is_local && !reset_params) { | |
582 | /* RFC-7432: A PE/VTEP that detects a MAC mobility | |
583 | * event via LOCAL learning starts an M-second timer. | |
584 | * | |
585 | * NOTE: This is the START of the probe with count is | |
586 | * 0 during LOCAL learn event. | |
587 | */ | |
588 | reset_params = !nbr->dad_count; | |
589 | } | |
590 | ||
591 | if (reset_params) { | |
592 | if (IS_ZEBRA_DEBUG_VXLAN) | |
593 | zlog_debug( | |
594 | "%s: duplicate addr MAC %s IP %s flags 0x%x detection time passed, reset learn count %u", | |
595 | __PRETTY_FUNCTION__, | |
596 | prefix_mac2str(&nbr->emac, buf, sizeof(buf)), | |
597 | ipaddr2str(&nbr->ip, buf1, sizeof(buf1)), | |
598 | nbr->flags, nbr->dad_count); | |
599 | /* Reset learn count but do not start detection | |
600 | * during REMOTE learn event. | |
601 | */ | |
602 | nbr->dad_count = 0; | |
603 | /* Start dup. addr detection (DAD) start time, | |
604 | * ONLY during LOCAL learn. | |
605 | */ | |
606 | if (is_local) | |
607 | monotime(&nbr->detect_start_time); | |
608 | ||
609 | } else if (!is_local) { | |
610 | /* For REMOTE IP/Neigh, increment detection count | |
611 | * ONLY while in probe window, once window passed, | |
612 | * next local learn event should trigger DAD. | |
613 | */ | |
614 | nbr->dad_count++; | |
615 | } | |
616 | ||
617 | /* For LOCAL IP/Neigh learn event, once count is reset above via either | |
618 | * initial/start detection time or passed the probe time, the count | |
619 | * needs to be incremented. | |
620 | */ | |
621 | if (is_local) | |
622 | nbr->dad_count++; | |
623 | ||
624 | if (nbr->dad_count >= zvrf->dad_max_moves) { | |
625 | flog_warn(EC_ZEBRA_DUP_IP_DETECTED, | |
626 | "VNI %u: MAC %s IP %s detected as duplicate during %s VTEP %s", | |
627 | nbr->zvni->vni, | |
628 | prefix_mac2str(&nbr->emac, buf, sizeof(buf)), | |
629 | ipaddr2str(&nbr->ip, buf1, sizeof(buf1)), | |
630 | is_local ? "local update, last" : | |
631 | "remote update, from", | |
632 | inet_ntoa(vtep_ip)); | |
633 | ||
634 | SET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
635 | ||
636 | /* Capture Duplicate detection time */ | |
637 | nbr->dad_dup_detect_time = monotime(NULL); | |
638 | ||
639 | /* Start auto recovery timer for this IP */ | |
640 | THREAD_OFF(nbr->dad_ip_auto_recovery_timer); | |
641 | if (zvrf->dad_freeze && zvrf->dad_freeze_time) { | |
642 | if (IS_ZEBRA_DEBUG_VXLAN) | |
643 | zlog_debug( | |
644 | "%s: duplicate addr MAC %s IP %s flags 0x%x auto recovery time %u start", | |
645 | __PRETTY_FUNCTION__, | |
646 | prefix_mac2str(&nbr->emac, buf, sizeof(buf)), | |
647 | ipaddr2str(&nbr->ip, buf1, sizeof(buf1)), | |
648 | nbr->flags, zvrf->dad_freeze_time); | |
649 | ||
650 | thread_add_timer(zebrad.master, | |
651 | zebra_vxlan_dad_ip_auto_recovery_exp, | |
652 | nbr, zvrf->dad_freeze_time, | |
653 | &nbr->dad_ip_auto_recovery_timer); | |
654 | } | |
655 | if (zvrf->dad_freeze) | |
656 | *is_dup_detect = true; | |
657 | } | |
658 | } | |
659 | ||
660 | /* | |
661 | * Helper function to determine maximum width of neighbor IP address for | |
662 | * display - just because we're dealing with IPv6 addresses that can | |
663 | * widely vary. | |
664 | */ | |
665 | static void zvni_find_neigh_addr_width(struct hash_backet *backet, void *ctxt) | |
666 | { | |
667 | zebra_neigh_t *n; | |
668 | char buf[INET6_ADDRSTRLEN]; | |
669 | struct neigh_walk_ctx *wctx = ctxt; | |
670 | int width; | |
671 | ||
672 | n = (zebra_neigh_t *)backet->data; | |
673 | ||
674 | ipaddr2str(&n->ip, buf, sizeof(buf)); | |
675 | width = strlen(buf); | |
676 | if (width > wctx->addr_width) | |
677 | wctx->addr_width = width; | |
678 | ||
679 | } | |
680 | ||
681 | /* | |
682 | * Print a specific neighbor entry. | |
683 | */ | |
684 | static void zvni_print_neigh(zebra_neigh_t *n, void *ctxt, json_object *json) | |
685 | { | |
686 | struct vty *vty; | |
687 | char buf1[ETHER_ADDR_STRLEN]; | |
688 | char buf2[INET6_ADDRSTRLEN]; | |
689 | const char *type_str; | |
690 | const char *state_str; | |
691 | bool flags_present = false; | |
692 | struct zebra_vrf *zvrf = NULL; | |
693 | struct timeval detect_start_time = {0, 0}; | |
694 | ||
695 | zvrf = zebra_vrf_lookup_by_id(n->zvni->vrf_id); | |
696 | if (!zvrf) | |
697 | return; | |
698 | ||
699 | ipaddr2str(&n->ip, buf2, sizeof(buf2)); | |
700 | prefix_mac2str(&n->emac, buf1, sizeof(buf1)); | |
701 | type_str = CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL) ? | |
702 | "local" : "remote"; | |
703 | state_str = IS_ZEBRA_NEIGH_ACTIVE(n) ? "active" : "inactive"; | |
704 | vty = (struct vty *)ctxt; | |
705 | if (json == NULL) { | |
706 | vty_out(vty, "IP: %s\n", | |
707 | ipaddr2str(&n->ip, buf2, sizeof(buf2))); | |
708 | vty_out(vty, " Type: %s\n", type_str); | |
709 | vty_out(vty, " State: %s\n", state_str); | |
710 | vty_out(vty, " MAC: %s\n", | |
711 | prefix_mac2str(&n->emac, buf1, sizeof(buf1))); | |
712 | } else { | |
713 | json_object_string_add(json, "ip", buf2); | |
714 | json_object_string_add(json, "type", type_str); | |
715 | json_object_string_add(json, "state", state_str); | |
716 | json_object_string_add(json, "mac", buf1); | |
717 | } | |
718 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) { | |
719 | if (json == NULL) { | |
720 | vty_out(vty, " Remote VTEP: %s\n", | |
721 | inet_ntoa(n->r_vtep_ip)); | |
722 | } else | |
723 | json_object_string_add(json, "remoteVtep", | |
724 | inet_ntoa(n->r_vtep_ip)); | |
725 | } | |
726 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DEF_GW)) { | |
727 | if (!json) { | |
728 | vty_out(vty, " Flags: Default-gateway"); | |
729 | flags_present = true; | |
730 | } else | |
731 | json_object_boolean_true_add(json, "defaultGateway"); | |
732 | } | |
733 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG)) { | |
734 | if (!json) { | |
735 | vty_out(vty, | |
736 | flags_present ? " ,Router" : " Flags: Router"); | |
737 | flags_present = true; | |
738 | } | |
739 | } | |
740 | if (json == NULL) { | |
741 | if (flags_present) | |
742 | vty_out(vty, "\n"); | |
743 | vty_out(vty, " Local Seq: %u Remote Seq: %u\n", | |
744 | n->loc_seq, n->rem_seq); | |
745 | ||
746 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DUPLICATE)) { | |
747 | vty_out(vty, " Duplicate, detected at %s", | |
748 | time_to_string(n->dad_dup_detect_time)); | |
749 | } else if (n->dad_count) { | |
750 | monotime_since(&n->detect_start_time, | |
751 | &detect_start_time); | |
752 | if (detect_start_time.tv_sec <= zvrf->dad_time) { | |
753 | char *buf = time_to_string( | |
754 | n->detect_start_time.tv_sec); | |
755 | char tmp_buf[30]; | |
756 | ||
757 | memset(tmp_buf, 0, 30); | |
758 | strncpy(tmp_buf, buf, strlen(buf) - 1); | |
759 | vty_out(vty, | |
760 | " Duplicate detection started at %s, detection count %u\n", | |
761 | tmp_buf, n->dad_count); | |
762 | } | |
763 | } | |
764 | } else { | |
765 | json_object_int_add(json, "localSequence", n->loc_seq); | |
766 | json_object_int_add(json, "remoteSequence", n->rem_seq); | |
767 | json_object_int_add(json, "detectionCount", | |
768 | n->dad_count); | |
769 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DUPLICATE)) | |
770 | json_object_boolean_true_add(json, "isDuplicate"); | |
771 | else | |
772 | json_object_boolean_false_add(json, "isDuplicate"); | |
773 | ||
774 | ||
775 | } | |
776 | } | |
777 | ||
778 | /* | |
779 | * Print neighbor hash entry - called for display of all neighbors. | |
780 | */ | |
781 | static void zvni_print_neigh_hash(struct hash_backet *backet, void *ctxt) | |
782 | { | |
783 | struct vty *vty; | |
784 | json_object *json_vni = NULL, *json_row = NULL; | |
785 | zebra_neigh_t *n; | |
786 | char buf1[ETHER_ADDR_STRLEN]; | |
787 | char buf2[INET6_ADDRSTRLEN]; | |
788 | struct neigh_walk_ctx *wctx = ctxt; | |
789 | const char *state_str; | |
790 | ||
791 | vty = wctx->vty; | |
792 | json_vni = wctx->json; | |
793 | n = (zebra_neigh_t *)backet->data; | |
794 | ||
795 | if (json_vni) | |
796 | json_row = json_object_new_object(); | |
797 | ||
798 | prefix_mac2str(&n->emac, buf1, sizeof(buf1)); | |
799 | ipaddr2str(&n->ip, buf2, sizeof(buf2)); | |
800 | state_str = IS_ZEBRA_NEIGH_ACTIVE(n) ? "active" : "inactive"; | |
801 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) { | |
802 | if (wctx->flags & SHOW_REMOTE_NEIGH_FROM_VTEP) | |
803 | return; | |
804 | ||
805 | if (json_vni == NULL) { | |
806 | vty_out(vty, "%*s %-6s %-8s %-17s\n", | |
807 | -wctx->addr_width, buf2, "local", | |
808 | state_str, buf1); | |
809 | } else { | |
810 | json_object_string_add(json_row, "type", "local"); | |
811 | json_object_string_add(json_row, "state", state_str); | |
812 | json_object_string_add(json_row, "mac", buf1); | |
813 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DEF_GW)) | |
814 | json_object_boolean_true_add( | |
815 | json_row, "defaultGateway"); | |
816 | json_object_int_add(json_row, "localSequence", | |
817 | n->loc_seq); | |
818 | json_object_int_add(json_row, "remoteSequence", | |
819 | n->rem_seq); | |
820 | json_object_int_add(json_row, "detectionCount", | |
821 | n->dad_count); | |
822 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DUPLICATE)) | |
823 | json_object_boolean_true_add(json_row, | |
824 | "isDuplicate"); | |
825 | else | |
826 | json_object_boolean_false_add(json_row, | |
827 | "isDuplicate"); | |
828 | } | |
829 | wctx->count++; | |
830 | } else if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) { | |
831 | if ((wctx->flags & SHOW_REMOTE_NEIGH_FROM_VTEP) && | |
832 | !IPV4_ADDR_SAME(&n->r_vtep_ip, &wctx->r_vtep_ip)) | |
833 | return; | |
834 | ||
835 | if (json_vni == NULL) { | |
836 | if ((wctx->flags & SHOW_REMOTE_NEIGH_FROM_VTEP) && | |
837 | (wctx->count == 0)) | |
838 | vty_out(vty, | |
839 | "%*s %-6s %-8s %-17s %-21s\n", | |
840 | -wctx->addr_width, "Neighbor", "Type", | |
841 | "State", "MAC", "Remote VTEP"); | |
842 | vty_out(vty, "%*s %-6s %-8s %-17s %-21s\n", | |
843 | -wctx->addr_width, buf2, "remote", state_str, | |
844 | buf1, inet_ntoa(n->r_vtep_ip)); | |
845 | } else { | |
846 | json_object_string_add(json_row, "type", "remote"); | |
847 | json_object_string_add(json_row, "state", state_str); | |
848 | json_object_string_add(json_row, "mac", buf1); | |
849 | json_object_string_add(json_row, "remoteVtep", | |
850 | inet_ntoa(n->r_vtep_ip)); | |
851 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DEF_GW)) | |
852 | json_object_boolean_true_add(json_row, | |
853 | "defaultGateway"); | |
854 | json_object_int_add(json_row, "localSequence", | |
855 | n->loc_seq); | |
856 | json_object_int_add(json_row, "remoteSequence", | |
857 | n->rem_seq); | |
858 | json_object_int_add(json_row, "detectionCount", | |
859 | n->dad_count); | |
860 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_DUPLICATE)) | |
861 | json_object_boolean_true_add(json_row, | |
862 | "isDuplicate"); | |
863 | else | |
864 | json_object_boolean_false_add(json_row, | |
865 | "isDuplicate"); | |
866 | } | |
867 | wctx->count++; | |
868 | } | |
869 | ||
870 | if (json_vni) | |
871 | json_object_object_add(json_vni, buf2, json_row); | |
872 | } | |
873 | ||
874 | /* | |
875 | * Print neighbor hash entry in detail - called for display of all neighbors. | |
876 | */ | |
877 | static void zvni_print_neigh_hash_detail(struct hash_backet *backet, void *ctxt) | |
878 | { | |
879 | struct vty *vty; | |
880 | json_object *json_vni = NULL, *json_row = NULL; | |
881 | zebra_neigh_t *n; | |
882 | char buf[INET6_ADDRSTRLEN]; | |
883 | struct neigh_walk_ctx *wctx = ctxt; | |
884 | ||
885 | vty = wctx->vty; | |
886 | json_vni = wctx->json; | |
887 | n = (zebra_neigh_t *)backet->data; | |
888 | if (!n) | |
889 | return; | |
890 | ||
891 | ipaddr2str(&n->ip, buf, sizeof(buf)); | |
892 | if (json_vni) | |
893 | json_row = json_object_new_object(); | |
894 | ||
895 | zvni_print_neigh(n, vty, json_row); | |
896 | ||
897 | if (json_vni) | |
898 | json_object_object_add(json_vni, buf, json_row); | |
899 | } | |
900 | ||
901 | /* | |
902 | * Print neighbors for all VNI. | |
903 | */ | |
904 | static void zvni_print_neigh_hash_all_vni(struct hash_backet *backet, | |
905 | void **args) | |
906 | { | |
907 | struct vty *vty; | |
908 | json_object *json = NULL, *json_vni = NULL; | |
909 | zebra_vni_t *zvni; | |
910 | uint32_t num_neigh; | |
911 | struct neigh_walk_ctx wctx; | |
912 | char vni_str[VNI_STR_LEN]; | |
913 | uint32_t print_dup; | |
914 | ||
915 | vty = (struct vty *)args[0]; | |
916 | json = (json_object *)args[1]; | |
917 | print_dup = (uint32_t)(uintptr_t)args[2]; | |
918 | ||
919 | zvni = (zebra_vni_t *)backet->data; | |
920 | ||
921 | num_neigh = hashcount(zvni->neigh_table); | |
922 | ||
923 | if (print_dup) | |
924 | num_neigh = num_dup_detected_neighs(zvni); | |
925 | ||
926 | if (json == NULL) { | |
927 | vty_out(vty, | |
928 | "\nVNI %u #ARP (IPv4 and IPv6, local and remote) %u\n\n", | |
929 | zvni->vni, num_neigh); | |
930 | } else { | |
931 | json_vni = json_object_new_object(); | |
932 | json_object_int_add(json_vni, "numArpNd", num_neigh); | |
933 | snprintf(vni_str, VNI_STR_LEN, "%u", zvni->vni); | |
934 | } | |
935 | ||
936 | if (!num_neigh) { | |
937 | if (json) | |
938 | json_object_object_add(json, vni_str, json_vni); | |
939 | return; | |
940 | } | |
941 | ||
942 | /* Since we have IPv6 addresses to deal with which can vary widely in | |
943 | * size, we try to be a bit more elegant in display by first computing | |
944 | * the maximum width. | |
945 | */ | |
946 | memset(&wctx, 0, sizeof(struct neigh_walk_ctx)); | |
947 | wctx.zvni = zvni; | |
948 | wctx.vty = vty; | |
949 | wctx.addr_width = 15; | |
950 | wctx.json = json_vni; | |
951 | hash_iterate(zvni->neigh_table, zvni_find_neigh_addr_width, &wctx); | |
952 | ||
953 | if (json == NULL) { | |
954 | vty_out(vty, "%*s %-6s %-8s %-17s %-21s\n", | |
955 | -wctx.addr_width, "IP", "Type", | |
956 | "State", "MAC", "Remote VTEP"); | |
957 | } | |
958 | if (print_dup) | |
959 | hash_iterate(zvni->neigh_table, zvni_print_dad_neigh_hash, | |
960 | &wctx); | |
961 | else | |
962 | hash_iterate(zvni->neigh_table, zvni_print_neigh_hash, &wctx); | |
963 | ||
964 | if (json) | |
965 | json_object_object_add(json, vni_str, json_vni); | |
966 | } | |
967 | ||
968 | static void zvni_print_dad_neigh_hash(struct hash_backet *backet, void *ctxt) | |
969 | { | |
970 | zebra_neigh_t *nbr; | |
971 | ||
972 | nbr = (zebra_neigh_t *)backet->data; | |
973 | if (!nbr) | |
974 | return; | |
975 | ||
976 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) | |
977 | zvni_print_neigh_hash(backet, ctxt); | |
978 | } | |
979 | ||
980 | static void zvni_print_dad_neigh_hash_detail(struct hash_backet *backet, | |
981 | void *ctxt) | |
982 | { | |
983 | zebra_neigh_t *nbr; | |
984 | ||
985 | nbr = (zebra_neigh_t *)backet->data; | |
986 | if (!nbr) | |
987 | return; | |
988 | ||
989 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) | |
990 | zvni_print_neigh_hash_detail(backet, ctxt); | |
991 | } | |
992 | ||
993 | /* | |
994 | * Print neighbors for all VNIs in detail. | |
995 | */ | |
996 | static void zvni_print_neigh_hash_all_vni_detail(struct hash_backet *backet, | |
997 | void **args) | |
998 | { | |
999 | struct vty *vty; | |
1000 | json_object *json = NULL, *json_vni = NULL; | |
1001 | zebra_vni_t *zvni; | |
1002 | uint32_t num_neigh; | |
1003 | struct neigh_walk_ctx wctx; | |
1004 | char vni_str[VNI_STR_LEN]; | |
1005 | uint32_t print_dup; | |
1006 | ||
1007 | vty = (struct vty *)args[0]; | |
1008 | json = (json_object *)args[1]; | |
1009 | print_dup = (uint32_t)(uintptr_t)args[2]; | |
1010 | ||
1011 | zvni = (zebra_vni_t *)backet->data; | |
1012 | if (!zvni) { | |
1013 | if (json) | |
1014 | vty_out(vty, "{}\n"); | |
1015 | return; | |
1016 | } | |
1017 | num_neigh = hashcount(zvni->neigh_table); | |
1018 | ||
1019 | if (print_dup && num_dup_detected_neighs(zvni) == 0) | |
1020 | return; | |
1021 | ||
1022 | if (json == NULL) { | |
1023 | vty_out(vty, | |
1024 | "\nVNI %u #ARP (IPv4 and IPv6, local and remote) %u\n\n", | |
1025 | zvni->vni, num_neigh); | |
1026 | } else { | |
1027 | json_vni = json_object_new_object(); | |
1028 | json_object_int_add(json_vni, "numArpNd", num_neigh); | |
1029 | snprintf(vni_str, VNI_STR_LEN, "%u", zvni->vni); | |
1030 | } | |
1031 | if (!num_neigh) { | |
1032 | if (json) | |
1033 | json_object_object_add(json, vni_str, json_vni); | |
1034 | return; | |
1035 | } | |
1036 | ||
1037 | memset(&wctx, 0, sizeof(struct neigh_walk_ctx)); | |
1038 | wctx.zvni = zvni; | |
1039 | wctx.vty = vty; | |
1040 | wctx.addr_width = 15; | |
1041 | wctx.json = json_vni; | |
1042 | ||
1043 | if (print_dup) | |
1044 | hash_iterate(zvni->neigh_table, | |
1045 | zvni_print_dad_neigh_hash_detail, &wctx); | |
1046 | else | |
1047 | hash_iterate(zvni->neigh_table, zvni_print_neigh_hash_detail, | |
1048 | &wctx); | |
1049 | ||
1050 | if (json) | |
1051 | json_object_object_add(json, vni_str, json_vni); | |
1052 | } | |
1053 | ||
1054 | /* print a specific next hop for an l3vni */ | |
1055 | static void zl3vni_print_nh(zebra_neigh_t *n, struct vty *vty, | |
1056 | json_object *json) | |
1057 | { | |
1058 | char buf1[ETHER_ADDR_STRLEN]; | |
1059 | char buf2[INET6_ADDRSTRLEN]; | |
1060 | json_object *json_hosts = NULL; | |
1061 | struct host_rb_entry *hle; | |
1062 | ||
1063 | if (!json) { | |
1064 | vty_out(vty, "Ip: %s\n", | |
1065 | ipaddr2str(&n->ip, buf2, sizeof(buf2))); | |
1066 | vty_out(vty, " RMAC: %s\n", | |
1067 | prefix_mac2str(&n->emac, buf1, sizeof(buf1))); | |
1068 | vty_out(vty, " Refcount: %d\n", | |
1069 | rb_host_count(&n->host_rb)); | |
1070 | vty_out(vty, " Prefixes:\n"); | |
1071 | RB_FOREACH (hle, host_rb_tree_entry, &n->host_rb) | |
1072 | vty_out(vty, " %s\n", | |
1073 | prefix2str(&hle->p, buf2, sizeof(buf2))); | |
1074 | } else { | |
1075 | json_hosts = json_object_new_array(); | |
1076 | json_object_string_add( | |
1077 | json, "ip", ipaddr2str(&(n->ip), buf2, sizeof(buf2))); | |
1078 | json_object_string_add( | |
1079 | json, "routerMac", | |
1080 | prefix_mac2str(&n->emac, buf2, sizeof(buf2))); | |
1081 | json_object_int_add(json, "refCount", | |
1082 | rb_host_count(&n->host_rb)); | |
1083 | RB_FOREACH (hle, host_rb_tree_entry, &n->host_rb) | |
1084 | json_object_array_add(json_hosts, | |
1085 | json_object_new_string(prefix2str( | |
1086 | &hle->p, buf2, sizeof(buf2)))); | |
1087 | json_object_object_add(json, "prefixList", json_hosts); | |
1088 | } | |
1089 | } | |
1090 | ||
1091 | /* Print a specific RMAC entry */ | |
1092 | static void zl3vni_print_rmac(zebra_mac_t *zrmac, struct vty *vty, | |
1093 | json_object *json) | |
1094 | { | |
1095 | char buf1[ETHER_ADDR_STRLEN]; | |
1096 | char buf2[PREFIX_STRLEN]; | |
1097 | json_object *json_hosts = NULL; | |
1098 | struct host_rb_entry *hle; | |
1099 | ||
1100 | if (!json) { | |
1101 | vty_out(vty, "MAC: %s\n", | |
1102 | prefix_mac2str(&zrmac->macaddr, buf1, sizeof(buf1))); | |
1103 | vty_out(vty, " Remote VTEP: %s\n", | |
1104 | inet_ntoa(zrmac->fwd_info.r_vtep_ip)); | |
1105 | vty_out(vty, " Refcount: %d\n", rb_host_count(&zrmac->host_rb)); | |
1106 | vty_out(vty, " Prefixes:\n"); | |
1107 | RB_FOREACH (hle, host_rb_tree_entry, &zrmac->host_rb) | |
1108 | vty_out(vty, " %s\n", | |
1109 | prefix2str(&hle->p, buf2, sizeof(buf2))); | |
1110 | } else { | |
1111 | json_hosts = json_object_new_array(); | |
1112 | json_object_string_add( | |
1113 | json, "routerMac", | |
1114 | prefix_mac2str(&zrmac->macaddr, buf1, sizeof(buf1))); | |
1115 | json_object_string_add(json, "vtepIp", | |
1116 | inet_ntoa(zrmac->fwd_info.r_vtep_ip)); | |
1117 | json_object_int_add(json, "refCount", | |
1118 | rb_host_count(&zrmac->host_rb)); | |
1119 | json_object_int_add(json, "localSequence", zrmac->loc_seq); | |
1120 | json_object_int_add(json, "remoteSequence", zrmac->rem_seq); | |
1121 | RB_FOREACH (hle, host_rb_tree_entry, &zrmac->host_rb) | |
1122 | json_object_array_add( | |
1123 | json_hosts, | |
1124 | json_object_new_string(prefix2str( | |
1125 | &hle->p, buf2, sizeof(buf2)))); | |
1126 | json_object_object_add(json, "prefixList", json_hosts); | |
1127 | } | |
1128 | } | |
1129 | ||
1130 | /* | |
1131 | * Print a specific MAC entry. | |
1132 | */ | |
1133 | static void zvni_print_mac(zebra_mac_t *mac, void *ctxt, json_object *json) | |
1134 | { | |
1135 | struct vty *vty; | |
1136 | zebra_neigh_t *n = NULL; | |
1137 | struct listnode *node = NULL; | |
1138 | char buf1[20]; | |
1139 | char buf2[INET6_ADDRSTRLEN]; | |
1140 | struct zebra_vrf *zvrf; | |
1141 | struct timeval detect_start_time = {0, 0}; | |
1142 | ||
1143 | zvrf = zebra_vrf_lookup_by_id(mac->zvni->vrf_id); | |
1144 | ||
1145 | vty = (struct vty *)ctxt; | |
1146 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
1147 | ||
1148 | if (json) { | |
1149 | json_object *json_mac = json_object_new_object(); | |
1150 | ||
1151 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
1152 | struct zebra_ns *zns; | |
1153 | struct interface *ifp; | |
1154 | ifindex_t ifindex; | |
1155 | ||
1156 | ifindex = mac->fwd_info.local.ifindex; | |
1157 | zns = zebra_ns_lookup(NS_DEFAULT); | |
1158 | ifp = if_lookup_by_index_per_ns(zns, ifindex); | |
1159 | if (!ifp) | |
1160 | return; | |
1161 | json_object_string_add(json_mac, "type", "local"); | |
1162 | json_object_string_add(json_mac, "intf", ifp->name); | |
1163 | json_object_int_add(json_mac, "ifindex", ifindex); | |
1164 | if (mac->fwd_info.local.vid) | |
1165 | json_object_int_add(json_mac, "vlan", | |
1166 | mac->fwd_info.local.vid); | |
1167 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
1168 | json_object_string_add(json_mac, "type", "remote"); | |
1169 | json_object_string_add( | |
1170 | json_mac, "remoteVtep", | |
1171 | inet_ntoa(mac->fwd_info.r_vtep_ip)); | |
1172 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) | |
1173 | json_object_string_add(json_mac, "type", "auto"); | |
1174 | ||
1175 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) | |
1176 | json_object_boolean_true_add(json_mac, "stickyMac"); | |
1177 | ||
1178 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) | |
1179 | json_object_boolean_true_add(json_mac, | |
1180 | "defaultGateway"); | |
1181 | ||
1182 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) | |
1183 | json_object_boolean_true_add(json_mac, | |
1184 | "remoteGatewayMac"); | |
1185 | ||
1186 | json_object_int_add(json_mac, "localSequence", mac->loc_seq); | |
1187 | json_object_int_add(json_mac, "remoteSequence", mac->rem_seq); | |
1188 | ||
1189 | json_object_int_add(json_mac, "detectionCount", mac->dad_count); | |
1190 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
1191 | json_object_boolean_true_add(json_mac, "isDuplicate"); | |
1192 | else | |
1193 | json_object_boolean_false_add(json_mac, "isDuplicate"); | |
1194 | ||
1195 | /* print all the associated neigh */ | |
1196 | if (!listcount(mac->neigh_list)) | |
1197 | json_object_string_add(json_mac, "neighbors", "none"); | |
1198 | else { | |
1199 | json_object *json_active_nbrs = json_object_new_array(); | |
1200 | json_object *json_inactive_nbrs = | |
1201 | json_object_new_array(); | |
1202 | json_object *json_nbrs = json_object_new_object(); | |
1203 | ||
1204 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { | |
1205 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) | |
1206 | json_object_array_add( | |
1207 | json_active_nbrs, | |
1208 | json_object_new_string( | |
1209 | ipaddr2str( | |
1210 | &n->ip, buf2, | |
1211 | sizeof(buf2)))); | |
1212 | else | |
1213 | json_object_array_add( | |
1214 | json_inactive_nbrs, | |
1215 | json_object_new_string( | |
1216 | ipaddr2str( | |
1217 | &n->ip, buf2, | |
1218 | sizeof(buf2)))); | |
1219 | } | |
1220 | ||
1221 | json_object_object_add(json_nbrs, "active", | |
1222 | json_active_nbrs); | |
1223 | json_object_object_add(json_nbrs, "inactive", | |
1224 | json_inactive_nbrs); | |
1225 | json_object_object_add(json_mac, "neighbors", | |
1226 | json_nbrs); | |
1227 | } | |
1228 | ||
1229 | json_object_object_add(json, buf1, json_mac); | |
1230 | } else { | |
1231 | vty_out(vty, "MAC: %s\n", buf1); | |
1232 | ||
1233 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
1234 | struct zebra_ns *zns; | |
1235 | struct interface *ifp; | |
1236 | ifindex_t ifindex; | |
1237 | ||
1238 | ifindex = mac->fwd_info.local.ifindex; | |
1239 | zns = zebra_ns_lookup(NS_DEFAULT); | |
1240 | ifp = if_lookup_by_index_per_ns(zns, ifindex); | |
1241 | if (!ifp) | |
1242 | return; | |
1243 | vty_out(vty, " Intf: %s(%u)", ifp->name, ifindex); | |
1244 | if (mac->fwd_info.local.vid) | |
1245 | vty_out(vty, " VLAN: %u", | |
1246 | mac->fwd_info.local.vid); | |
1247 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
1248 | vty_out(vty, " Remote VTEP: %s", | |
1249 | inet_ntoa(mac->fwd_info.r_vtep_ip)); | |
1250 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { | |
1251 | vty_out(vty, " Auto Mac "); | |
1252 | } | |
1253 | ||
1254 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) | |
1255 | vty_out(vty, " Sticky Mac "); | |
1256 | ||
1257 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) | |
1258 | vty_out(vty, " Default-gateway Mac "); | |
1259 | ||
1260 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW)) | |
1261 | vty_out(vty, " Remote-gateway Mac "); | |
1262 | ||
1263 | vty_out(vty, "\n"); | |
1264 | vty_out(vty, " Local Seq: %u Remote Seq: %u", mac->loc_seq, | |
1265 | mac->rem_seq); | |
1266 | vty_out(vty, "\n"); | |
1267 | ||
1268 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { | |
1269 | vty_out(vty, " Duplicate, detected at %s", | |
1270 | time_to_string(mac->dad_dup_detect_time)); | |
1271 | } else if (mac->dad_count) { | |
1272 | monotime_since(&mac->detect_start_time, | |
1273 | &detect_start_time); | |
1274 | if (detect_start_time.tv_sec <= zvrf->dad_time) { | |
1275 | char *buf = time_to_string( | |
1276 | mac->detect_start_time.tv_sec); | |
1277 | char tmp_buf[30]; | |
1278 | ||
1279 | memset(tmp_buf, 0, 30); | |
1280 | strncpy(tmp_buf, buf, strlen(buf) - 1); | |
1281 | vty_out(vty, | |
1282 | " Duplicate detection started at %s, detection count %u\n", | |
1283 | tmp_buf, mac->dad_count); | |
1284 | } | |
1285 | } | |
1286 | ||
1287 | /* print all the associated neigh */ | |
1288 | vty_out(vty, " Neighbors:\n"); | |
1289 | if (!listcount(mac->neigh_list)) | |
1290 | vty_out(vty, " No Neighbors\n"); | |
1291 | else { | |
1292 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { | |
1293 | vty_out(vty, " %s %s\n", | |
1294 | ipaddr2str(&n->ip, buf2, sizeof(buf2)), | |
1295 | (IS_ZEBRA_NEIGH_ACTIVE(n) | |
1296 | ? "Active" | |
1297 | : "Inactive")); | |
1298 | } | |
1299 | } | |
1300 | ||
1301 | vty_out(vty, "\n"); | |
1302 | } | |
1303 | } | |
1304 | ||
1305 | /* | |
1306 | * Print MAC hash entry - called for display of all MACs. | |
1307 | */ | |
1308 | static void zvni_print_mac_hash(struct hash_backet *backet, void *ctxt) | |
1309 | { | |
1310 | struct vty *vty; | |
1311 | json_object *json_mac_hdr = NULL, *json_mac = NULL; | |
1312 | zebra_mac_t *mac; | |
1313 | char buf1[20]; | |
1314 | struct mac_walk_ctx *wctx = ctxt; | |
1315 | ||
1316 | vty = wctx->vty; | |
1317 | json_mac_hdr = wctx->json; | |
1318 | mac = (zebra_mac_t *)backet->data; | |
1319 | ||
1320 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
1321 | ||
1322 | if (json_mac_hdr) | |
1323 | json_mac = json_object_new_object(); | |
1324 | ||
1325 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
1326 | struct zebra_ns *zns; | |
1327 | ifindex_t ifindex; | |
1328 | struct interface *ifp; | |
1329 | vlanid_t vid; | |
1330 | ||
1331 | if (wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) | |
1332 | return; | |
1333 | ||
1334 | zns = zebra_ns_lookup(NS_DEFAULT); | |
1335 | ifindex = mac->fwd_info.local.ifindex; | |
1336 | ifp = if_lookup_by_index_per_ns(zns, ifindex); | |
1337 | if (!ifp) // unexpected | |
1338 | return; | |
1339 | vid = mac->fwd_info.local.vid; | |
1340 | if (json_mac_hdr == NULL) | |
1341 | vty_out(vty, "%-17s %-6s %-21s", buf1, "local", | |
1342 | ifp->name); | |
1343 | else { | |
1344 | json_object_string_add(json_mac, "type", "local"); | |
1345 | json_object_string_add(json_mac, "intf", ifp->name); | |
1346 | } | |
1347 | if (vid) { | |
1348 | if (json_mac_hdr == NULL) | |
1349 | vty_out(vty, " %-5u", vid); | |
1350 | else | |
1351 | json_object_int_add(json_mac, "vlan", vid); | |
1352 | } | |
1353 | if (json_mac_hdr == NULL) { | |
1354 | vty_out(vty, "\n"); | |
1355 | } else { | |
1356 | json_object_int_add(json_mac, "localSequence", | |
1357 | mac->loc_seq); | |
1358 | json_object_int_add(json_mac, "remoteSequence", | |
1359 | mac->rem_seq); | |
1360 | json_object_int_add(json_mac, "detectionCount", | |
1361 | mac->dad_count); | |
1362 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
1363 | json_object_boolean_true_add(json_mac, | |
1364 | "isDuplicate"); | |
1365 | else | |
1366 | json_object_boolean_false_add(json_mac, | |
1367 | "isDuplicate"); | |
1368 | json_object_object_add(json_mac_hdr, buf1, json_mac); | |
1369 | } | |
1370 | ||
1371 | wctx->count++; | |
1372 | ||
1373 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
1374 | ||
1375 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) && | |
1376 | !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, | |
1377 | &wctx->r_vtep_ip)) | |
1378 | return; | |
1379 | ||
1380 | if (json_mac_hdr == NULL) { | |
1381 | if ((wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) && | |
1382 | (wctx->count == 0)) { | |
1383 | vty_out(vty, "\nVNI %u\n\n", wctx->zvni->vni); | |
1384 | vty_out(vty, "%-17s %-6s %-21s %-5s\n", "MAC", | |
1385 | "Type", "Intf/Remote VTEP", "VLAN"); | |
1386 | } | |
1387 | vty_out(vty, "%-17s %-6s %-21s\n", buf1, "remote", | |
1388 | inet_ntoa(mac->fwd_info.r_vtep_ip)); | |
1389 | } else { | |
1390 | json_object_string_add(json_mac, "type", "remote"); | |
1391 | json_object_string_add(json_mac, "remoteVtep", | |
1392 | inet_ntoa(mac->fwd_info.r_vtep_ip)); | |
1393 | json_object_object_add(json_mac_hdr, buf1, json_mac); | |
1394 | json_object_int_add(json_mac, "localSequence", | |
1395 | mac->loc_seq); | |
1396 | json_object_int_add(json_mac, "remoteSequence", | |
1397 | mac->rem_seq); | |
1398 | json_object_int_add(json_mac, "detectionCount", | |
1399 | mac->dad_count); | |
1400 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
1401 | json_object_boolean_true_add(json_mac, | |
1402 | "isDuplicate"); | |
1403 | else | |
1404 | json_object_boolean_false_add(json_mac, | |
1405 | "isDuplicate"); | |
1406 | ||
1407 | } | |
1408 | ||
1409 | wctx->count++; | |
1410 | } | |
1411 | } | |
1412 | ||
1413 | /* Print Duplicate MAC */ | |
1414 | static void zvni_print_dad_mac_hash(struct hash_backet *backet, void *ctxt) | |
1415 | { | |
1416 | zebra_mac_t *mac; | |
1417 | ||
1418 | mac = (zebra_mac_t *)backet->data; | |
1419 | if (!mac) | |
1420 | return; | |
1421 | ||
1422 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
1423 | zvni_print_mac_hash(backet, ctxt); | |
1424 | } | |
1425 | ||
1426 | /* | |
1427 | * Print MAC hash entry in detail - called for display of all MACs. | |
1428 | */ | |
1429 | static void zvni_print_mac_hash_detail(struct hash_backet *backet, void *ctxt) | |
1430 | { | |
1431 | struct vty *vty; | |
1432 | json_object *json_mac_hdr = NULL; | |
1433 | zebra_mac_t *mac; | |
1434 | struct mac_walk_ctx *wctx = ctxt; | |
1435 | char buf1[20]; | |
1436 | ||
1437 | vty = wctx->vty; | |
1438 | json_mac_hdr = wctx->json; | |
1439 | mac = (zebra_mac_t *)backet->data; | |
1440 | if (!mac) | |
1441 | return; | |
1442 | ||
1443 | wctx->count++; | |
1444 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
1445 | ||
1446 | zvni_print_mac(mac, vty, json_mac_hdr); | |
1447 | } | |
1448 | ||
1449 | /* Print Duplicate MAC in detail */ | |
1450 | static void zvni_print_dad_mac_hash_detail(struct hash_backet *backet, | |
1451 | void *ctxt) | |
1452 | { | |
1453 | zebra_mac_t *mac; | |
1454 | ||
1455 | mac = (zebra_mac_t *)backet->data; | |
1456 | if (!mac) | |
1457 | return; | |
1458 | ||
1459 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
1460 | zvni_print_mac_hash_detail(backet, ctxt); | |
1461 | } | |
1462 | ||
1463 | /* | |
1464 | * Print MACs for all VNI. | |
1465 | */ | |
1466 | static void zvni_print_mac_hash_all_vni(struct hash_backet *backet, void *ctxt) | |
1467 | { | |
1468 | struct vty *vty; | |
1469 | json_object *json = NULL, *json_vni = NULL; | |
1470 | json_object *json_mac = NULL; | |
1471 | zebra_vni_t *zvni; | |
1472 | uint32_t num_macs; | |
1473 | struct mac_walk_ctx *wctx = ctxt; | |
1474 | char vni_str[VNI_STR_LEN]; | |
1475 | ||
1476 | vty = (struct vty *)wctx->vty; | |
1477 | json = (struct json_object *)wctx->json; | |
1478 | ||
1479 | zvni = (zebra_vni_t *)backet->data; | |
1480 | wctx->zvni = zvni; | |
1481 | ||
1482 | /*We are iterating over a new VNI, set the count to 0*/ | |
1483 | wctx->count = 0; | |
1484 | ||
1485 | num_macs = num_valid_macs(zvni); | |
1486 | if (!num_macs) | |
1487 | return; | |
1488 | ||
1489 | if (wctx->print_dup) | |
1490 | num_macs = num_dup_detected_macs(zvni); | |
1491 | ||
1492 | if (json) { | |
1493 | json_vni = json_object_new_object(); | |
1494 | json_mac = json_object_new_object(); | |
1495 | snprintf(vni_str, VNI_STR_LEN, "%u", zvni->vni); | |
1496 | } | |
1497 | ||
1498 | if (!CHECK_FLAG(wctx->flags, SHOW_REMOTE_MAC_FROM_VTEP)) { | |
1499 | if (json == NULL) { | |
1500 | vty_out(vty, "\nVNI %u #MACs (local and remote) %u\n\n", | |
1501 | zvni->vni, num_macs); | |
1502 | vty_out(vty, "%-17s %-6s %-21s %-5s\n", "MAC", "Type", | |
1503 | "Intf/Remote VTEP", "VLAN"); | |
1504 | } else | |
1505 | json_object_int_add(json_vni, "numMacs", num_macs); | |
1506 | } | |
1507 | ||
1508 | if (!num_macs) { | |
1509 | if (json) { | |
1510 | json_object_int_add(json_vni, "numMacs", num_macs); | |
1511 | json_object_object_add(json, vni_str, json_vni); | |
1512 | } | |
1513 | return; | |
1514 | } | |
1515 | ||
1516 | /* assign per-vni to wctx->json object to fill macs | |
1517 | * under the vni. Re-assign primary json object to fill | |
1518 | * next vni information. | |
1519 | */ | |
1520 | wctx->json = json_mac; | |
1521 | if (wctx->print_dup) | |
1522 | hash_iterate(zvni->mac_table, zvni_print_dad_mac_hash, wctx); | |
1523 | else | |
1524 | hash_iterate(zvni->mac_table, zvni_print_mac_hash, wctx); | |
1525 | wctx->json = json; | |
1526 | if (json) { | |
1527 | if (wctx->count) | |
1528 | json_object_object_add(json_vni, "macs", json_mac); | |
1529 | json_object_object_add(json, vni_str, json_vni); | |
1530 | } | |
1531 | } | |
1532 | ||
1533 | /* | |
1534 | * Print MACs in detail for all VNI. | |
1535 | */ | |
1536 | static void zvni_print_mac_hash_all_vni_detail(struct hash_backet *backet, | |
1537 | void *ctxt) | |
1538 | { | |
1539 | struct vty *vty; | |
1540 | json_object *json = NULL, *json_vni = NULL; | |
1541 | json_object *json_mac = NULL; | |
1542 | zebra_vni_t *zvni; | |
1543 | uint32_t num_macs; | |
1544 | struct mac_walk_ctx *wctx = ctxt; | |
1545 | char vni_str[VNI_STR_LEN]; | |
1546 | ||
1547 | vty = (struct vty *)wctx->vty; | |
1548 | json = (struct json_object *)wctx->json; | |
1549 | ||
1550 | zvni = (zebra_vni_t *)backet->data; | |
1551 | if (!zvni) { | |
1552 | if (json) | |
1553 | vty_out(vty, "{}\n"); | |
1554 | return; | |
1555 | } | |
1556 | wctx->zvni = zvni; | |
1557 | ||
1558 | /*We are iterating over a new VNI, set the count to 0*/ | |
1559 | wctx->count = 0; | |
1560 | ||
1561 | num_macs = num_valid_macs(zvni); | |
1562 | if (!num_macs) | |
1563 | return; | |
1564 | ||
1565 | if (wctx->print_dup && (num_dup_detected_macs(zvni) == 0)) | |
1566 | return; | |
1567 | ||
1568 | if (json) { | |
1569 | json_vni = json_object_new_object(); | |
1570 | json_mac = json_object_new_object(); | |
1571 | snprintf(vni_str, VNI_STR_LEN, "%u", zvni->vni); | |
1572 | } | |
1573 | ||
1574 | if (!CHECK_FLAG(wctx->flags, SHOW_REMOTE_MAC_FROM_VTEP)) { | |
1575 | if (json == NULL) { | |
1576 | vty_out(vty, "\nVNI %u #MACs (local and remote) %u\n\n", | |
1577 | zvni->vni, num_macs); | |
1578 | } else | |
1579 | json_object_int_add(json_vni, "numMacs", num_macs); | |
1580 | } | |
1581 | /* assign per-vni to wctx->json object to fill macs | |
1582 | * under the vni. Re-assign primary json object to fill | |
1583 | * next vni information. | |
1584 | */ | |
1585 | wctx->json = json_mac; | |
1586 | if (wctx->print_dup) | |
1587 | hash_iterate(zvni->mac_table, zvni_print_dad_mac_hash_detail, | |
1588 | wctx); | |
1589 | else | |
1590 | hash_iterate(zvni->mac_table, zvni_print_mac_hash_detail, wctx); | |
1591 | wctx->json = json; | |
1592 | if (json) { | |
1593 | if (wctx->count) | |
1594 | json_object_object_add(json_vni, "macs", json_mac); | |
1595 | json_object_object_add(json, vni_str, json_vni); | |
1596 | } | |
1597 | } | |
1598 | ||
1599 | static void zl3vni_print_nh_hash(struct hash_backet *backet, void *ctx) | |
1600 | { | |
1601 | struct nh_walk_ctx *wctx = NULL; | |
1602 | struct vty *vty = NULL; | |
1603 | struct json_object *json_vni = NULL; | |
1604 | struct json_object *json_nh = NULL; | |
1605 | zebra_neigh_t *n = NULL; | |
1606 | char buf1[ETHER_ADDR_STRLEN]; | |
1607 | char buf2[INET6_ADDRSTRLEN]; | |
1608 | ||
1609 | wctx = (struct nh_walk_ctx *)ctx; | |
1610 | vty = wctx->vty; | |
1611 | json_vni = wctx->json; | |
1612 | if (json_vni) | |
1613 | json_nh = json_object_new_object(); | |
1614 | n = (zebra_neigh_t *)backet->data; | |
1615 | ||
1616 | if (!json_vni) { | |
1617 | vty_out(vty, "%-15s %-17s\n", | |
1618 | ipaddr2str(&(n->ip), buf2, sizeof(buf2)), | |
1619 | prefix_mac2str(&n->emac, buf1, sizeof(buf1))); | |
1620 | } else { | |
1621 | json_object_string_add(json_nh, "nexthopIp", | |
1622 | ipaddr2str(&n->ip, buf2, sizeof(buf2))); | |
1623 | json_object_string_add( | |
1624 | json_nh, "routerMac", | |
1625 | prefix_mac2str(&n->emac, buf1, sizeof(buf1))); | |
1626 | json_object_object_add(json_vni, | |
1627 | ipaddr2str(&(n->ip), buf2, sizeof(buf2)), | |
1628 | json_nh); | |
1629 | } | |
1630 | } | |
1631 | ||
1632 | static void zl3vni_print_nh_hash_all_vni(struct hash_backet *backet, | |
1633 | void **args) | |
1634 | { | |
1635 | struct vty *vty = NULL; | |
1636 | json_object *json = NULL; | |
1637 | json_object *json_vni = NULL; | |
1638 | zebra_l3vni_t *zl3vni = NULL; | |
1639 | uint32_t num_nh = 0; | |
1640 | struct nh_walk_ctx wctx; | |
1641 | char vni_str[VNI_STR_LEN]; | |
1642 | ||
1643 | vty = (struct vty *)args[0]; | |
1644 | json = (struct json_object *)args[1]; | |
1645 | ||
1646 | zl3vni = (zebra_l3vni_t *)backet->data; | |
1647 | ||
1648 | num_nh = hashcount(zl3vni->nh_table); | |
1649 | if (!num_nh) | |
1650 | return; | |
1651 | ||
1652 | if (json) { | |
1653 | json_vni = json_object_new_object(); | |
1654 | snprintf(vni_str, VNI_STR_LEN, "%u", zl3vni->vni); | |
1655 | } | |
1656 | ||
1657 | if (json == NULL) { | |
1658 | vty_out(vty, "\nVNI %u #Next-Hops %u\n\n", zl3vni->vni, num_nh); | |
1659 | vty_out(vty, "%-15s %-17s\n", "IP", "RMAC"); | |
1660 | } else | |
1661 | json_object_int_add(json_vni, "numNextHops", num_nh); | |
1662 | ||
1663 | memset(&wctx, 0, sizeof(struct nh_walk_ctx)); | |
1664 | wctx.vty = vty; | |
1665 | wctx.json = json_vni; | |
1666 | hash_iterate(zl3vni->nh_table, zl3vni_print_nh_hash, &wctx); | |
1667 | if (json) | |
1668 | json_object_object_add(json, vni_str, json_vni); | |
1669 | } | |
1670 | ||
1671 | static void zl3vni_print_rmac_hash_all_vni(struct hash_backet *backet, | |
1672 | void **args) | |
1673 | { | |
1674 | struct vty *vty = NULL; | |
1675 | json_object *json = NULL; | |
1676 | json_object *json_vni = NULL; | |
1677 | zebra_l3vni_t *zl3vni = NULL; | |
1678 | uint32_t num_rmacs; | |
1679 | struct rmac_walk_ctx wctx; | |
1680 | char vni_str[VNI_STR_LEN]; | |
1681 | ||
1682 | vty = (struct vty *)args[0]; | |
1683 | json = (struct json_object *)args[1]; | |
1684 | ||
1685 | zl3vni = (zebra_l3vni_t *)backet->data; | |
1686 | ||
1687 | num_rmacs = hashcount(zl3vni->rmac_table); | |
1688 | if (!num_rmacs) | |
1689 | return; | |
1690 | ||
1691 | if (json) { | |
1692 | json_vni = json_object_new_object(); | |
1693 | snprintf(vni_str, VNI_STR_LEN, "%u", zl3vni->vni); | |
1694 | } | |
1695 | ||
1696 | if (json == NULL) { | |
1697 | vty_out(vty, "\nVNI %u #RMACs %u\n\n", zl3vni->vni, num_rmacs); | |
1698 | vty_out(vty, "%-17s %-21s\n", "RMAC", "Remote VTEP"); | |
1699 | } else | |
1700 | json_object_int_add(json_vni, "numRmacs", num_rmacs); | |
1701 | ||
1702 | /* assign per-vni to wctx->json object to fill macs | |
1703 | * under the vni. Re-assign primary json object to fill | |
1704 | * next vni information. | |
1705 | */ | |
1706 | memset(&wctx, 0, sizeof(struct rmac_walk_ctx)); | |
1707 | wctx.vty = vty; | |
1708 | wctx.json = json_vni; | |
1709 | hash_iterate(zl3vni->rmac_table, zl3vni_print_rmac_hash, &wctx); | |
1710 | if (json) | |
1711 | json_object_object_add(json, vni_str, json_vni); | |
1712 | } | |
1713 | ||
1714 | static void zl3vni_print_rmac_hash(struct hash_backet *backet, void *ctx) | |
1715 | { | |
1716 | zebra_mac_t *zrmac = NULL; | |
1717 | struct rmac_walk_ctx *wctx = NULL; | |
1718 | struct vty *vty = NULL; | |
1719 | struct json_object *json = NULL; | |
1720 | struct json_object *json_rmac = NULL; | |
1721 | char buf[ETHER_ADDR_STRLEN]; | |
1722 | ||
1723 | wctx = (struct rmac_walk_ctx *)ctx; | |
1724 | vty = wctx->vty; | |
1725 | json = wctx->json; | |
1726 | if (json) | |
1727 | json_rmac = json_object_new_object(); | |
1728 | zrmac = (zebra_mac_t *)backet->data; | |
1729 | ||
1730 | if (!json) { | |
1731 | vty_out(vty, "%-17s %-21s\n", | |
1732 | prefix_mac2str(&zrmac->macaddr, buf, sizeof(buf)), | |
1733 | inet_ntoa(zrmac->fwd_info.r_vtep_ip)); | |
1734 | } else { | |
1735 | json_object_string_add( | |
1736 | json_rmac, "routerMac", | |
1737 | prefix_mac2str(&zrmac->macaddr, buf, sizeof(buf))); | |
1738 | json_object_string_add(json_rmac, "vtepIp", | |
1739 | inet_ntoa(zrmac->fwd_info.r_vtep_ip)); | |
1740 | json_object_object_add( | |
1741 | json, prefix_mac2str(&zrmac->macaddr, buf, sizeof(buf)), | |
1742 | json_rmac); | |
1743 | } | |
1744 | } | |
1745 | ||
1746 | /* print a specific L3 VNI entry */ | |
1747 | static void zl3vni_print(zebra_l3vni_t *zl3vni, void **ctx) | |
1748 | { | |
1749 | char buf[ETHER_ADDR_STRLEN]; | |
1750 | struct vty *vty = NULL; | |
1751 | json_object *json = NULL; | |
1752 | zebra_vni_t *zvni = NULL; | |
1753 | json_object *json_vni_list = NULL; | |
1754 | struct listnode *node = NULL, *nnode = NULL; | |
1755 | ||
1756 | vty = ctx[0]; | |
1757 | json = ctx[1]; | |
1758 | ||
1759 | if (!json) { | |
1760 | vty_out(vty, "VNI: %u\n", zl3vni->vni); | |
1761 | vty_out(vty, " Type: %s\n", "L3"); | |
1762 | vty_out(vty, " Tenant VRF: %s\n", zl3vni_vrf_name(zl3vni)); | |
1763 | vty_out(vty, " Local Vtep Ip: %s\n", | |
1764 | inet_ntoa(zl3vni->local_vtep_ip)); | |
1765 | vty_out(vty, " Vxlan-Intf: %s\n", | |
1766 | zl3vni_vxlan_if_name(zl3vni)); | |
1767 | vty_out(vty, " SVI-If: %s\n", zl3vni_svi_if_name(zl3vni)); | |
1768 | vty_out(vty, " State: %s\n", zl3vni_state2str(zl3vni)); | |
1769 | vty_out(vty, " VNI Filter: %s\n", | |
1770 | CHECK_FLAG(zl3vni->filter, PREFIX_ROUTES_ONLY) | |
1771 | ? "prefix-routes-only" | |
1772 | : "none"); | |
1773 | vty_out(vty, " Router MAC: %s\n", | |
1774 | zl3vni_rmac2str(zl3vni, buf, sizeof(buf))); | |
1775 | vty_out(vty, " L2 VNIs: "); | |
1776 | for (ALL_LIST_ELEMENTS(zl3vni->l2vnis, node, nnode, zvni)) | |
1777 | vty_out(vty, "%u ", zvni->vni); | |
1778 | vty_out(vty, "\n"); | |
1779 | } else { | |
1780 | json_vni_list = json_object_new_array(); | |
1781 | json_object_int_add(json, "vni", zl3vni->vni); | |
1782 | json_object_string_add(json, "type", "L3"); | |
1783 | json_object_string_add(json, "localVtepIp", | |
1784 | inet_ntoa(zl3vni->local_vtep_ip)); | |
1785 | json_object_string_add(json, "vxlanIntf", | |
1786 | zl3vni_vxlan_if_name(zl3vni)); | |
1787 | json_object_string_add(json, "sviIntf", | |
1788 | zl3vni_svi_if_name(zl3vni)); | |
1789 | json_object_string_add(json, "state", zl3vni_state2str(zl3vni)); | |
1790 | json_object_string_add(json, "vrf", zl3vni_vrf_name(zl3vni)); | |
1791 | json_object_string_add( | |
1792 | json, "routerMac", | |
1793 | zl3vni_rmac2str(zl3vni, buf, sizeof(buf))); | |
1794 | json_object_string_add( | |
1795 | json, "vniFilter", | |
1796 | CHECK_FLAG(zl3vni->filter, PREFIX_ROUTES_ONLY) | |
1797 | ? "prefix-routes-only" | |
1798 | : "none"); | |
1799 | for (ALL_LIST_ELEMENTS(zl3vni->l2vnis, node, nnode, zvni)) { | |
1800 | json_object_array_add(json_vni_list, | |
1801 | json_object_new_int(zvni->vni)); | |
1802 | } | |
1803 | json_object_object_add(json, "l2Vnis", json_vni_list); | |
1804 | } | |
1805 | } | |
1806 | ||
1807 | /* | |
1808 | * Print a specific VNI entry. | |
1809 | */ | |
1810 | static void zvni_print(zebra_vni_t *zvni, void **ctxt) | |
1811 | { | |
1812 | struct vty *vty; | |
1813 | zebra_vtep_t *zvtep; | |
1814 | uint32_t num_macs; | |
1815 | uint32_t num_neigh; | |
1816 | json_object *json = NULL; | |
1817 | json_object *json_vtep_list = NULL; | |
1818 | json_object *json_ip_str = NULL; | |
1819 | ||
1820 | vty = ctxt[0]; | |
1821 | json = ctxt[1]; | |
1822 | ||
1823 | if (json == NULL) { | |
1824 | vty_out(vty, "VNI: %u\n", zvni->vni); | |
1825 | vty_out(vty, " Type: %s\n", "L2"); | |
1826 | vty_out(vty, " Tenant VRF: %s\n", vrf_id_to_name(zvni->vrf_id)); | |
1827 | } else { | |
1828 | json_object_int_add(json, "vni", zvni->vni); | |
1829 | json_object_string_add(json, "type", "L2"); | |
1830 | json_object_string_add(json, "vrf", | |
1831 | vrf_id_to_name(zvni->vrf_id)); | |
1832 | } | |
1833 | ||
1834 | if (!zvni->vxlan_if) { // unexpected | |
1835 | if (json == NULL) | |
1836 | vty_out(vty, " VxLAN interface: unknown\n"); | |
1837 | return; | |
1838 | } | |
1839 | num_macs = num_valid_macs(zvni); | |
1840 | num_neigh = hashcount(zvni->neigh_table); | |
1841 | if (json == NULL) { | |
1842 | vty_out(vty, " VxLAN interface: %s\n", zvni->vxlan_if->name); | |
1843 | vty_out(vty, " VxLAN ifIndex: %u\n", zvni->vxlan_if->ifindex); | |
1844 | vty_out(vty, " Local VTEP IP: %s\n", | |
1845 | inet_ntoa(zvni->local_vtep_ip)); | |
1846 | } else { | |
1847 | json_object_string_add(json, "vxlanInterface", | |
1848 | zvni->vxlan_if->name); | |
1849 | json_object_int_add(json, "ifindex", zvni->vxlan_if->ifindex); | |
1850 | json_object_string_add(json, "vtepIp", | |
1851 | inet_ntoa(zvni->local_vtep_ip)); | |
1852 | json_object_string_add(json, "advertiseGatewayMacip", | |
1853 | zvni->advertise_gw_macip ? "Yes" : "No"); | |
1854 | json_object_int_add(json, "numMacs", num_macs); | |
1855 | json_object_int_add(json, "numArpNd", num_neigh); | |
1856 | } | |
1857 | if (!zvni->vteps) { | |
1858 | if (json == NULL) | |
1859 | vty_out(vty, " No remote VTEPs known for this VNI\n"); | |
1860 | } else { | |
1861 | if (json == NULL) | |
1862 | vty_out(vty, " Remote VTEPs for this VNI:\n"); | |
1863 | else | |
1864 | json_vtep_list = json_object_new_array(); | |
1865 | for (zvtep = zvni->vteps; zvtep; zvtep = zvtep->next) { | |
1866 | if (json == NULL) | |
1867 | vty_out(vty, " %s\n", | |
1868 | inet_ntoa(zvtep->vtep_ip)); | |
1869 | else { | |
1870 | json_ip_str = json_object_new_string( | |
1871 | inet_ntoa(zvtep->vtep_ip)); | |
1872 | json_object_array_add(json_vtep_list, | |
1873 | json_ip_str); | |
1874 | } | |
1875 | } | |
1876 | if (json) | |
1877 | json_object_object_add(json, "numRemoteVteps", | |
1878 | json_vtep_list); | |
1879 | } | |
1880 | if (json == NULL) { | |
1881 | vty_out(vty, | |
1882 | " Number of MACs (local and remote) known for this VNI: %u\n", | |
1883 | num_macs); | |
1884 | vty_out(vty, | |
1885 | " Number of ARPs (IPv4 and IPv6, local and remote) " | |
1886 | "known for this VNI: %u\n", | |
1887 | num_neigh); | |
1888 | vty_out(vty, " Advertise-gw-macip: %s\n", | |
1889 | zvni->advertise_gw_macip ? "Yes" : "No"); | |
1890 | } | |
1891 | } | |
1892 | ||
1893 | /* print a L3 VNI hash entry */ | |
1894 | static void zl3vni_print_hash(struct hash_backet *backet, void *ctx[]) | |
1895 | { | |
1896 | struct vty *vty = NULL; | |
1897 | json_object *json = NULL; | |
1898 | json_object *json_vni = NULL; | |
1899 | zebra_l3vni_t *zl3vni = NULL; | |
1900 | ||
1901 | vty = (struct vty *)ctx[0]; | |
1902 | json = (json_object *)ctx[1]; | |
1903 | ||
1904 | zl3vni = (zebra_l3vni_t *)backet->data; | |
1905 | ||
1906 | if (!json) { | |
1907 | vty_out(vty, "%-10u %-4s %-21s %-8lu %-8lu %-15s %-37s\n", | |
1908 | zl3vni->vni, "L3", zl3vni_vxlan_if_name(zl3vni), | |
1909 | hashcount(zl3vni->rmac_table), | |
1910 | hashcount(zl3vni->nh_table), "n/a", | |
1911 | zl3vni_vrf_name(zl3vni)); | |
1912 | } else { | |
1913 | char vni_str[VNI_STR_LEN]; | |
1914 | ||
1915 | snprintf(vni_str, VNI_STR_LEN, "%u", zl3vni->vni); | |
1916 | json_vni = json_object_new_object(); | |
1917 | json_object_int_add(json_vni, "vni", zl3vni->vni); | |
1918 | json_object_string_add(json_vni, "vxlanIf", | |
1919 | zl3vni_vxlan_if_name(zl3vni)); | |
1920 | json_object_int_add(json_vni, "numMacs", | |
1921 | hashcount(zl3vni->rmac_table)); | |
1922 | json_object_int_add(json_vni, "numArpNd", | |
1923 | hashcount(zl3vni->nh_table)); | |
1924 | json_object_string_add(json_vni, "numRemoteVteps", "n/a"); | |
1925 | json_object_string_add(json_vni, "type", "L3"); | |
1926 | json_object_string_add(json_vni, "tenantVrf", | |
1927 | zl3vni_vrf_name(zl3vni)); | |
1928 | json_object_object_add(json, vni_str, json_vni); | |
1929 | } | |
1930 | } | |
1931 | ||
1932 | /* Private Structure to pass callback data for hash iterator */ | |
1933 | struct zvni_evpn_show { | |
1934 | struct vty *vty; | |
1935 | json_object *json; | |
1936 | struct zebra_vrf *zvrf; | |
1937 | }; | |
1938 | ||
1939 | /* print a L3 VNI hash entry in detail*/ | |
1940 | static void zl3vni_print_hash_detail(struct hash_backet *backet, void *data) | |
1941 | { | |
1942 | struct vty *vty = NULL; | |
1943 | zebra_l3vni_t *zl3vni = NULL; | |
1944 | json_object *json = NULL; | |
1945 | bool use_json = false; | |
1946 | struct zvni_evpn_show *zes = data; | |
1947 | ||
1948 | vty = zes->vty; | |
1949 | json = zes->json; | |
1950 | ||
1951 | if (json) | |
1952 | use_json = true; | |
1953 | ||
1954 | zl3vni = (zebra_l3vni_t *)backet->data; | |
1955 | ||
1956 | zebra_vxlan_print_vni(vty, zes->zvrf, zl3vni->vni, use_json); | |
1957 | vty_out(vty, "\n"); | |
1958 | } | |
1959 | ||
1960 | ||
1961 | /* | |
1962 | * Print a VNI hash entry - called for display of all VNIs. | |
1963 | */ | |
1964 | static void zvni_print_hash(struct hash_backet *backet, void *ctxt[]) | |
1965 | { | |
1966 | struct vty *vty; | |
1967 | zebra_vni_t *zvni; | |
1968 | zebra_vtep_t *zvtep; | |
1969 | uint32_t num_vteps = 0; | |
1970 | uint32_t num_macs = 0; | |
1971 | uint32_t num_neigh = 0; | |
1972 | json_object *json = NULL; | |
1973 | json_object *json_vni = NULL; | |
1974 | json_object *json_ip_str = NULL; | |
1975 | json_object *json_vtep_list = NULL; | |
1976 | ||
1977 | vty = ctxt[0]; | |
1978 | json = ctxt[1]; | |
1979 | ||
1980 | zvni = (zebra_vni_t *)backet->data; | |
1981 | ||
1982 | zvtep = zvni->vteps; | |
1983 | while (zvtep) { | |
1984 | num_vteps++; | |
1985 | zvtep = zvtep->next; | |
1986 | } | |
1987 | ||
1988 | num_macs = num_valid_macs(zvni); | |
1989 | num_neigh = hashcount(zvni->neigh_table); | |
1990 | if (json == NULL) | |
1991 | vty_out(vty, "%-10u %-4s %-21s %-8u %-8u %-15u %-37s\n", | |
1992 | zvni->vni, "L2", | |
1993 | zvni->vxlan_if ? zvni->vxlan_if->name : "unknown", | |
1994 | num_macs, num_neigh, num_vteps, | |
1995 | vrf_id_to_name(zvni->vrf_id)); | |
1996 | else { | |
1997 | char vni_str[VNI_STR_LEN]; | |
1998 | snprintf(vni_str, VNI_STR_LEN, "%u", zvni->vni); | |
1999 | json_vni = json_object_new_object(); | |
2000 | json_object_int_add(json_vni, "vni", zvni->vni); | |
2001 | json_object_string_add(json_vni, "type", "L2"); | |
2002 | json_object_string_add(json_vni, "vxlanIf", | |
2003 | zvni->vxlan_if ? zvni->vxlan_if->name | |
2004 | : "unknown"); | |
2005 | json_object_int_add(json_vni, "numMacs", num_macs); | |
2006 | json_object_int_add(json_vni, "numArpNd", num_neigh); | |
2007 | json_object_int_add(json_vni, "numRemoteVteps", num_vteps); | |
2008 | json_object_string_add(json_vni, "tenantVrf", | |
2009 | vrf_id_to_name(zvni->vrf_id)); | |
2010 | if (num_vteps) { | |
2011 | json_vtep_list = json_object_new_array(); | |
2012 | for (zvtep = zvni->vteps; zvtep; zvtep = zvtep->next) { | |
2013 | json_ip_str = json_object_new_string( | |
2014 | inet_ntoa(zvtep->vtep_ip)); | |
2015 | json_object_array_add(json_vtep_list, | |
2016 | json_ip_str); | |
2017 | } | |
2018 | json_object_object_add(json_vni, "remoteVteps", | |
2019 | json_vtep_list); | |
2020 | } | |
2021 | json_object_object_add(json, vni_str, json_vni); | |
2022 | } | |
2023 | } | |
2024 | ||
2025 | /* | |
2026 | * Print a VNI hash entry in detail - called for display of all VNIs. | |
2027 | */ | |
2028 | static void zvni_print_hash_detail(struct hash_backet *backet, void *data) | |
2029 | { | |
2030 | struct vty *vty; | |
2031 | zebra_vni_t *zvni; | |
2032 | json_object *json = NULL; | |
2033 | bool use_json = false; | |
2034 | struct zvni_evpn_show *zes = data; | |
2035 | ||
2036 | vty = zes->vty; | |
2037 | json = zes->json; | |
2038 | ||
2039 | if (json) | |
2040 | use_json = true; | |
2041 | ||
2042 | zvni = (zebra_vni_t *)backet->data; | |
2043 | ||
2044 | zebra_vxlan_print_vni(vty, zes->zvrf, zvni->vni, use_json); | |
2045 | vty_out(vty, "\n"); | |
2046 | } | |
2047 | ||
2048 | /* | |
2049 | * Inform BGP about local MACIP. | |
2050 | */ | |
2051 | static int zvni_macip_send_msg_to_client(vni_t vni, struct ethaddr *macaddr, | |
2052 | struct ipaddr *ip, uint8_t flags, | |
2053 | uint32_t seq, uint16_t cmd) | |
2054 | { | |
2055 | char buf[ETHER_ADDR_STRLEN]; | |
2056 | char buf2[INET6_ADDRSTRLEN]; | |
2057 | int ipa_len; | |
2058 | struct zserv *client = NULL; | |
2059 | struct stream *s = NULL; | |
2060 | ||
2061 | client = zserv_find_client(ZEBRA_ROUTE_BGP, 0); | |
2062 | /* BGP may not be running. */ | |
2063 | if (!client) | |
2064 | return 0; | |
2065 | ||
2066 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
2067 | ||
2068 | zclient_create_header(s, cmd, VRF_DEFAULT); | |
2069 | stream_putl(s, vni); | |
2070 | stream_put(s, macaddr->octet, ETH_ALEN); | |
2071 | if (ip) { | |
2072 | ipa_len = 0; | |
2073 | if (IS_IPADDR_V4(ip)) | |
2074 | ipa_len = IPV4_MAX_BYTELEN; | |
2075 | else if (IS_IPADDR_V6(ip)) | |
2076 | ipa_len = IPV6_MAX_BYTELEN; | |
2077 | ||
2078 | stream_putl(s, ipa_len); /* IP address length */ | |
2079 | if (ipa_len) | |
2080 | stream_put(s, &ip->ip.addr, ipa_len); /* IP address */ | |
2081 | } else | |
2082 | stream_putl(s, 0); /* Just MAC. */ | |
2083 | ||
2084 | if (cmd == ZEBRA_MACIP_ADD) { | |
2085 | stream_putc(s, flags); /* sticky mac/gateway mac */ | |
2086 | stream_putl(s, seq); /* sequence number */ | |
2087 | } | |
2088 | ||
2089 | ||
2090 | /* Write packet size. */ | |
2091 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2092 | ||
2093 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2094 | zlog_debug( | |
2095 | "Send MACIP %s flags 0x%x MAC %s IP %s seq %u L2-VNI %u to %s", | |
2096 | (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", flags, | |
2097 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2098 | ipaddr2str(ip, buf2, sizeof(buf2)), seq, vni, | |
2099 | zebra_route_string(client->proto)); | |
2100 | ||
2101 | if (cmd == ZEBRA_MACIP_ADD) | |
2102 | client->macipadd_cnt++; | |
2103 | else | |
2104 | client->macipdel_cnt++; | |
2105 | ||
2106 | return zserv_send_message(client, s); | |
2107 | } | |
2108 | ||
2109 | /* | |
2110 | * Make hash key for neighbors. | |
2111 | */ | |
2112 | static unsigned int neigh_hash_keymake(void *p) | |
2113 | { | |
2114 | zebra_neigh_t *n = p; | |
2115 | struct ipaddr *ip = &n->ip; | |
2116 | ||
2117 | if (IS_IPADDR_V4(ip)) | |
2118 | return jhash_1word(ip->ipaddr_v4.s_addr, 0); | |
2119 | ||
2120 | return jhash2(ip->ipaddr_v6.s6_addr32, | |
2121 | ZEBRA_NUM_OF(ip->ipaddr_v6.s6_addr32), 0); | |
2122 | } | |
2123 | ||
2124 | /* | |
2125 | * Compare two neighbor hash structures. | |
2126 | */ | |
2127 | static bool neigh_cmp(const void *p1, const void *p2) | |
2128 | { | |
2129 | const zebra_neigh_t *n1 = p1; | |
2130 | const zebra_neigh_t *n2 = p2; | |
2131 | ||
2132 | if (n1 == NULL && n2 == NULL) | |
2133 | return true; | |
2134 | ||
2135 | if (n1 == NULL || n2 == NULL) | |
2136 | return false; | |
2137 | ||
2138 | return (memcmp(&n1->ip, &n2->ip, sizeof(struct ipaddr)) == 0); | |
2139 | } | |
2140 | ||
2141 | static int neigh_list_cmp(void *p1, void *p2) | |
2142 | { | |
2143 | const zebra_neigh_t *n1 = p1; | |
2144 | const zebra_neigh_t *n2 = p2; | |
2145 | ||
2146 | return memcmp(&n1->ip, &n2->ip, sizeof(struct ipaddr)); | |
2147 | } | |
2148 | ||
2149 | /* | |
2150 | * Callback to allocate neighbor hash entry. | |
2151 | */ | |
2152 | static void *zvni_neigh_alloc(void *p) | |
2153 | { | |
2154 | const zebra_neigh_t *tmp_n = p; | |
2155 | zebra_neigh_t *n; | |
2156 | ||
2157 | n = XCALLOC(MTYPE_NEIGH, sizeof(zebra_neigh_t)); | |
2158 | *n = *tmp_n; | |
2159 | ||
2160 | return ((void *)n); | |
2161 | } | |
2162 | ||
2163 | /* | |
2164 | * Add neighbor entry. | |
2165 | */ | |
2166 | static zebra_neigh_t *zvni_neigh_add(zebra_vni_t *zvni, struct ipaddr *ip, | |
2167 | struct ethaddr *mac) | |
2168 | { | |
2169 | zebra_neigh_t tmp_n; | |
2170 | zebra_neigh_t *n = NULL; | |
2171 | zebra_mac_t *zmac = NULL; | |
2172 | ||
2173 | memset(&tmp_n, 0, sizeof(zebra_neigh_t)); | |
2174 | memcpy(&tmp_n.ip, ip, sizeof(struct ipaddr)); | |
2175 | n = hash_get(zvni->neigh_table, &tmp_n, zvni_neigh_alloc); | |
2176 | assert(n); | |
2177 | ||
2178 | memcpy(&n->emac, mac, ETH_ALEN); | |
2179 | n->state = ZEBRA_NEIGH_INACTIVE; | |
2180 | ||
2181 | /* Associate the neigh to mac */ | |
2182 | zmac = zvni_mac_lookup(zvni, mac); | |
2183 | if (zmac) | |
2184 | listnode_add_sort(zmac->neigh_list, n); | |
2185 | ||
2186 | return n; | |
2187 | } | |
2188 | ||
2189 | /* | |
2190 | * Delete neighbor entry. | |
2191 | */ | |
2192 | static int zvni_neigh_del(zebra_vni_t *zvni, zebra_neigh_t *n) | |
2193 | { | |
2194 | zebra_neigh_t *tmp_n; | |
2195 | zebra_mac_t *zmac = NULL; | |
2196 | ||
2197 | zmac = zvni_mac_lookup(zvni, &n->emac); | |
2198 | if (zmac) | |
2199 | listnode_delete(zmac->neigh_list, n); | |
2200 | ||
2201 | /* Free the VNI hash entry and allocated memory. */ | |
2202 | tmp_n = hash_release(zvni->neigh_table, n); | |
2203 | if (tmp_n) | |
2204 | XFREE(MTYPE_NEIGH, tmp_n); | |
2205 | ||
2206 | return 0; | |
2207 | } | |
2208 | ||
2209 | /* | |
2210 | * Free neighbor hash entry (callback) | |
2211 | */ | |
2212 | static void zvni_neigh_del_hash_entry(struct hash_backet *backet, void *arg) | |
2213 | { | |
2214 | struct neigh_walk_ctx *wctx = arg; | |
2215 | zebra_neigh_t *n = backet->data; | |
2216 | ||
2217 | if (((wctx->flags & DEL_LOCAL_NEIGH) && (n->flags & ZEBRA_NEIGH_LOCAL)) | |
2218 | || ((wctx->flags & DEL_REMOTE_NEIGH) | |
2219 | && (n->flags & ZEBRA_NEIGH_REMOTE)) | |
2220 | || ((wctx->flags & DEL_REMOTE_NEIGH_FROM_VTEP) | |
2221 | && (n->flags & ZEBRA_NEIGH_REMOTE) | |
2222 | && IPV4_ADDR_SAME(&n->r_vtep_ip, &wctx->r_vtep_ip))) { | |
2223 | if (wctx->upd_client && (n->flags & ZEBRA_NEIGH_LOCAL)) | |
2224 | zvni_neigh_send_del_to_client(wctx->zvni->vni, &n->ip, | |
2225 | &n->emac, 0); | |
2226 | ||
2227 | if (wctx->uninstall) | |
2228 | zvni_neigh_uninstall(wctx->zvni, n); | |
2229 | ||
2230 | zvni_neigh_del(wctx->zvni, n); | |
2231 | } | |
2232 | ||
2233 | return; | |
2234 | } | |
2235 | ||
2236 | /* | |
2237 | * Delete all neighbor entries from specific VTEP for a particular VNI. | |
2238 | */ | |
2239 | static void zvni_neigh_del_from_vtep(zebra_vni_t *zvni, int uninstall, | |
2240 | struct in_addr *r_vtep_ip) | |
2241 | { | |
2242 | struct neigh_walk_ctx wctx; | |
2243 | ||
2244 | if (!zvni->neigh_table) | |
2245 | return; | |
2246 | ||
2247 | memset(&wctx, 0, sizeof(struct neigh_walk_ctx)); | |
2248 | wctx.zvni = zvni; | |
2249 | wctx.uninstall = uninstall; | |
2250 | wctx.flags = DEL_REMOTE_NEIGH_FROM_VTEP; | |
2251 | wctx.r_vtep_ip = *r_vtep_ip; | |
2252 | ||
2253 | hash_iterate(zvni->neigh_table, zvni_neigh_del_hash_entry, &wctx); | |
2254 | } | |
2255 | ||
2256 | /* | |
2257 | * Delete all neighbor entries for this VNI. | |
2258 | */ | |
2259 | static void zvni_neigh_del_all(zebra_vni_t *zvni, int uninstall, int upd_client, | |
2260 | uint32_t flags) | |
2261 | { | |
2262 | struct neigh_walk_ctx wctx; | |
2263 | ||
2264 | if (!zvni->neigh_table) | |
2265 | return; | |
2266 | ||
2267 | memset(&wctx, 0, sizeof(struct neigh_walk_ctx)); | |
2268 | wctx.zvni = zvni; | |
2269 | wctx.uninstall = uninstall; | |
2270 | wctx.upd_client = upd_client; | |
2271 | wctx.flags = flags; | |
2272 | ||
2273 | hash_iterate(zvni->neigh_table, zvni_neigh_del_hash_entry, &wctx); | |
2274 | } | |
2275 | ||
2276 | /* | |
2277 | * Look up neighbor hash entry. | |
2278 | */ | |
2279 | static zebra_neigh_t *zvni_neigh_lookup(zebra_vni_t *zvni, struct ipaddr *ip) | |
2280 | { | |
2281 | zebra_neigh_t tmp; | |
2282 | zebra_neigh_t *n; | |
2283 | ||
2284 | memset(&tmp, 0, sizeof(tmp)); | |
2285 | memcpy(&tmp.ip, ip, sizeof(struct ipaddr)); | |
2286 | n = hash_lookup(zvni->neigh_table, &tmp); | |
2287 | ||
2288 | return n; | |
2289 | } | |
2290 | ||
2291 | /* | |
2292 | * Process all neighbors associated with a MAC upon the MAC being learnt | |
2293 | * locally or undergoing any other change (such as sequence number). | |
2294 | */ | |
2295 | static void zvni_process_neigh_on_local_mac_change(zebra_vni_t *zvni, | |
2296 | zebra_mac_t *zmac, | |
2297 | bool seq_change) | |
2298 | { | |
2299 | zebra_neigh_t *n = NULL; | |
2300 | struct listnode *node = NULL; | |
2301 | struct zebra_vrf *zvrf = NULL; | |
2302 | char buf[ETHER_ADDR_STRLEN]; | |
2303 | ||
2304 | zvrf = vrf_info_lookup(zvni->vrf_id); | |
2305 | ||
2306 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2307 | zlog_debug("Processing neighbors on local MAC %s %s, VNI %u", | |
2308 | prefix_mac2str(&zmac->macaddr, buf, sizeof(buf)), | |
2309 | seq_change ? "CHANGE" : "ADD", zvni->vni); | |
2310 | ||
2311 | /* Walk all neighbors and mark any inactive local neighbors as | |
2312 | * active and/or update sequence number upon a move, and inform BGP. | |
2313 | * The action for remote neighbors is TBD. | |
2314 | * NOTE: We can't simply uninstall remote neighbors as the kernel may | |
2315 | * accidentally end up deleting a just-learnt local neighbor. | |
2316 | */ | |
2317 | for (ALL_LIST_ELEMENTS_RO(zmac->neigh_list, node, n)) { | |
2318 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) { | |
2319 | if (IS_ZEBRA_NEIGH_INACTIVE(n) || seq_change) { | |
2320 | ZEBRA_NEIGH_SET_ACTIVE(n); | |
2321 | n->loc_seq = zmac->loc_seq; | |
2322 | if (!(zvrf->dup_addr_detect && | |
2323 | zvrf->dad_freeze && !!CHECK_FLAG(n->flags, | |
2324 | ZEBRA_NEIGH_DUPLICATE))) | |
2325 | zvni_neigh_send_add_to_client( | |
2326 | zvni->vni, &n->ip, &n->emac, | |
2327 | n->flags, n->loc_seq); | |
2328 | } | |
2329 | } | |
2330 | } | |
2331 | } | |
2332 | ||
2333 | /* | |
2334 | * Process all neighbors associated with a local MAC upon the MAC being | |
2335 | * deleted. | |
2336 | */ | |
2337 | static void zvni_process_neigh_on_local_mac_del(zebra_vni_t *zvni, | |
2338 | zebra_mac_t *zmac) | |
2339 | { | |
2340 | zebra_neigh_t *n = NULL; | |
2341 | struct listnode *node = NULL; | |
2342 | char buf[ETHER_ADDR_STRLEN]; | |
2343 | ||
2344 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2345 | zlog_debug("Processing neighbors on local MAC %s DEL, VNI %u", | |
2346 | prefix_mac2str(&zmac->macaddr, buf, sizeof(buf)), | |
2347 | zvni->vni); | |
2348 | ||
2349 | /* Walk all local neighbors and mark as inactive and inform | |
2350 | * BGP, if needed. | |
2351 | * TBD: There is currently no handling for remote neighbors. We | |
2352 | * don't expect them to exist, if they do, do we install the MAC | |
2353 | * as a remote MAC and the neighbor as remote? | |
2354 | */ | |
2355 | for (ALL_LIST_ELEMENTS_RO(zmac->neigh_list, node, n)) { | |
2356 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) { | |
2357 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) { | |
2358 | ZEBRA_NEIGH_SET_INACTIVE(n); | |
2359 | n->loc_seq = 0; | |
2360 | zvni_neigh_send_del_to_client(zvni->vni, &n->ip, | |
2361 | &n->emac, 0); | |
2362 | } | |
2363 | } | |
2364 | } | |
2365 | } | |
2366 | ||
2367 | /* | |
2368 | * Process all neighbors associated with a MAC upon the MAC being remotely | |
2369 | * learnt. | |
2370 | */ | |
2371 | static void zvni_process_neigh_on_remote_mac_add(zebra_vni_t *zvni, | |
2372 | zebra_mac_t *zmac) | |
2373 | { | |
2374 | zebra_neigh_t *n = NULL; | |
2375 | struct listnode *node = NULL; | |
2376 | char buf[ETHER_ADDR_STRLEN]; | |
2377 | ||
2378 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2379 | zlog_debug("Processing neighbors on remote MAC %s ADD, VNI %u", | |
2380 | prefix_mac2str(&zmac->macaddr, buf, sizeof(buf)), | |
2381 | zvni->vni); | |
2382 | ||
2383 | /* Walk all local neighbors and mark as inactive and inform | |
2384 | * BGP, if needed. | |
2385 | */ | |
2386 | for (ALL_LIST_ELEMENTS_RO(zmac->neigh_list, node, n)) { | |
2387 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) { | |
2388 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) { | |
2389 | ZEBRA_NEIGH_SET_INACTIVE(n); | |
2390 | n->loc_seq = 0; | |
2391 | zvni_neigh_send_del_to_client(zvni->vni, &n->ip, | |
2392 | &n->emac, 0); | |
2393 | } | |
2394 | } | |
2395 | } | |
2396 | } | |
2397 | ||
2398 | /* | |
2399 | * Process all neighbors associated with a remote MAC upon the MAC being | |
2400 | * deleted. | |
2401 | */ | |
2402 | static void zvni_process_neigh_on_remote_mac_del(zebra_vni_t *zvni, | |
2403 | zebra_mac_t *zmac) | |
2404 | { | |
2405 | /* NOTE: Currently a NO-OP. */ | |
2406 | } | |
2407 | ||
2408 | /* | |
2409 | * Inform BGP about local neighbor addition. | |
2410 | */ | |
2411 | static int zvni_neigh_send_add_to_client(vni_t vni, struct ipaddr *ip, | |
2412 | struct ethaddr *macaddr, | |
2413 | uint8_t neigh_flags, | |
2414 | uint32_t seq) | |
2415 | { | |
2416 | uint8_t flags = 0; | |
2417 | ||
2418 | if (CHECK_FLAG(neigh_flags, ZEBRA_NEIGH_DEF_GW)) | |
2419 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
2420 | /* Set router flag (R-bit) based on local neigh entry add */ | |
2421 | if (CHECK_FLAG(neigh_flags, ZEBRA_NEIGH_ROUTER_FLAG)) | |
2422 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_ROUTER_FLAG); | |
2423 | ||
2424 | return zvni_macip_send_msg_to_client(vni, macaddr, ip, flags, | |
2425 | seq, ZEBRA_MACIP_ADD); | |
2426 | } | |
2427 | ||
2428 | /* | |
2429 | * Inform BGP about local neighbor deletion. | |
2430 | */ | |
2431 | static int zvni_neigh_send_del_to_client(vni_t vni, struct ipaddr *ip, | |
2432 | struct ethaddr *macaddr, uint8_t flags) | |
2433 | { | |
2434 | return zvni_macip_send_msg_to_client(vni, macaddr, ip, flags, | |
2435 | 0, ZEBRA_MACIP_DEL); | |
2436 | } | |
2437 | ||
2438 | /* | |
2439 | * Install remote neighbor into the kernel. | |
2440 | */ | |
2441 | static int zvni_neigh_install(zebra_vni_t *zvni, zebra_neigh_t *n) | |
2442 | { | |
2443 | struct zebra_if *zif; | |
2444 | struct zebra_l2info_vxlan *vxl; | |
2445 | struct interface *vlan_if; | |
2446 | #ifdef GNU_LINUX | |
2447 | uint8_t flags; | |
2448 | #endif | |
2449 | int ret = 0; | |
2450 | ||
2451 | if (!(n->flags & ZEBRA_NEIGH_REMOTE)) | |
2452 | return 0; | |
2453 | ||
2454 | zif = zvni->vxlan_if->info; | |
2455 | if (!zif) | |
2456 | return -1; | |
2457 | vxl = &zif->l2info.vxl; | |
2458 | ||
2459 | vlan_if = zvni_map_to_svi(vxl->access_vlan, zif->brslave_info.br_if); | |
2460 | if (!vlan_if) | |
2461 | return -1; | |
2462 | #ifdef GNU_LINUX | |
2463 | flags = NTF_EXT_LEARNED; | |
2464 | if (n->flags & ZEBRA_NEIGH_ROUTER_FLAG) | |
2465 | flags |= NTF_ROUTER; | |
2466 | ZEBRA_NEIGH_SET_ACTIVE(n); | |
2467 | ret = kernel_add_neigh(vlan_if, &n->ip, &n->emac, flags); | |
2468 | #endif | |
2469 | return ret; | |
2470 | } | |
2471 | ||
2472 | /* | |
2473 | * Uninstall remote neighbor from the kernel. | |
2474 | */ | |
2475 | static int zvni_neigh_uninstall(zebra_vni_t *zvni, zebra_neigh_t *n) | |
2476 | { | |
2477 | struct zebra_if *zif; | |
2478 | struct zebra_l2info_vxlan *vxl; | |
2479 | struct interface *vlan_if; | |
2480 | ||
2481 | if (!(n->flags & ZEBRA_NEIGH_REMOTE)) | |
2482 | return 0; | |
2483 | ||
2484 | if (!zvni->vxlan_if) { | |
2485 | zlog_debug("VNI %u hash %p couldn't be uninstalled - no intf", | |
2486 | zvni->vni, zvni); | |
2487 | return -1; | |
2488 | } | |
2489 | ||
2490 | zif = zvni->vxlan_if->info; | |
2491 | if (!zif) | |
2492 | return -1; | |
2493 | vxl = &zif->l2info.vxl; | |
2494 | vlan_if = zvni_map_to_svi(vxl->access_vlan, zif->brslave_info.br_if); | |
2495 | if (!vlan_if) | |
2496 | return -1; | |
2497 | ||
2498 | ZEBRA_NEIGH_SET_INACTIVE(n); | |
2499 | n->loc_seq = 0; | |
2500 | return kernel_del_neigh(vlan_if, &n->ip); | |
2501 | } | |
2502 | ||
2503 | /* | |
2504 | * Install neighbor hash entry - called upon access VLAN change. | |
2505 | */ | |
2506 | static void zvni_install_neigh_hash(struct hash_backet *backet, void *ctxt) | |
2507 | { | |
2508 | zebra_neigh_t *n; | |
2509 | struct neigh_walk_ctx *wctx = ctxt; | |
2510 | ||
2511 | n = (zebra_neigh_t *)backet->data; | |
2512 | ||
2513 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) | |
2514 | zvni_neigh_install(wctx->zvni, n); | |
2515 | } | |
2516 | ||
2517 | /* Get the VRR interface for SVI if any */ | |
2518 | struct interface *zebra_get_vrr_intf_for_svi(struct interface *ifp) | |
2519 | { | |
2520 | struct zebra_vrf *zvrf = NULL; | |
2521 | struct interface *tmp_if = NULL; | |
2522 | struct zebra_if *zif = NULL; | |
2523 | ||
2524 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
2525 | assert(zvrf); | |
2526 | ||
2527 | FOR_ALL_INTERFACES (zvrf->vrf, tmp_if) { | |
2528 | zif = tmp_if->info; | |
2529 | if (!zif) | |
2530 | continue; | |
2531 | ||
2532 | if (!IS_ZEBRA_IF_MACVLAN(tmp_if)) | |
2533 | continue; | |
2534 | ||
2535 | if (zif->link == ifp) | |
2536 | return tmp_if; | |
2537 | } | |
2538 | ||
2539 | return NULL; | |
2540 | } | |
2541 | ||
2542 | static int zvni_del_macip_for_intf(struct interface *ifp, zebra_vni_t *zvni) | |
2543 | { | |
2544 | struct listnode *cnode = NULL, *cnnode = NULL; | |
2545 | struct connected *c = NULL; | |
2546 | struct ethaddr macaddr; | |
2547 | ||
2548 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2549 | ||
2550 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
2551 | struct ipaddr ip; | |
2552 | ||
2553 | memset(&ip, 0, sizeof(struct ipaddr)); | |
2554 | if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) | |
2555 | continue; | |
2556 | ||
2557 | if (c->address->family == AF_INET) { | |
2558 | ip.ipa_type = IPADDR_V4; | |
2559 | memcpy(&(ip.ipaddr_v4), &(c->address->u.prefix4), | |
2560 | sizeof(struct in_addr)); | |
2561 | } else if (c->address->family == AF_INET6) { | |
2562 | ip.ipa_type = IPADDR_V6; | |
2563 | memcpy(&(ip.ipaddr_v6), &(c->address->u.prefix6), | |
2564 | sizeof(struct in6_addr)); | |
2565 | } else { | |
2566 | continue; | |
2567 | } | |
2568 | ||
2569 | zvni_gw_macip_del(ifp, zvni, &ip); | |
2570 | } | |
2571 | ||
2572 | return 0; | |
2573 | } | |
2574 | ||
2575 | static int zvni_add_macip_for_intf(struct interface *ifp, zebra_vni_t *zvni) | |
2576 | { | |
2577 | struct listnode *cnode = NULL, *cnnode = NULL; | |
2578 | struct connected *c = NULL; | |
2579 | struct ethaddr macaddr; | |
2580 | ||
2581 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2582 | ||
2583 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
2584 | struct ipaddr ip; | |
2585 | ||
2586 | memset(&ip, 0, sizeof(struct ipaddr)); | |
2587 | if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) | |
2588 | continue; | |
2589 | ||
2590 | if (c->address->family == AF_INET) { | |
2591 | ip.ipa_type = IPADDR_V4; | |
2592 | memcpy(&(ip.ipaddr_v4), &(c->address->u.prefix4), | |
2593 | sizeof(struct in_addr)); | |
2594 | } else if (c->address->family == AF_INET6) { | |
2595 | ip.ipa_type = IPADDR_V6; | |
2596 | memcpy(&(ip.ipaddr_v6), &(c->address->u.prefix6), | |
2597 | sizeof(struct in6_addr)); | |
2598 | } else { | |
2599 | continue; | |
2600 | } | |
2601 | ||
2602 | zvni_gw_macip_add(ifp, zvni, &macaddr, &ip); | |
2603 | } | |
2604 | return 0; | |
2605 | } | |
2606 | ||
2607 | ||
2608 | static int zvni_advertise_subnet(zebra_vni_t *zvni, struct interface *ifp, | |
2609 | int advertise) | |
2610 | { | |
2611 | struct listnode *cnode = NULL, *cnnode = NULL; | |
2612 | struct connected *c = NULL; | |
2613 | struct ethaddr macaddr; | |
2614 | ||
2615 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
2616 | ||
2617 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
2618 | struct prefix p; | |
2619 | ||
2620 | memcpy(&p, c->address, sizeof(struct prefix)); | |
2621 | ||
2622 | /* skip link local address */ | |
2623 | if (IN6_IS_ADDR_LINKLOCAL(&p.u.prefix6)) | |
2624 | continue; | |
2625 | ||
2626 | apply_mask(&p); | |
2627 | if (advertise) | |
2628 | ip_prefix_send_to_client(ifp->vrf_id, &p, | |
2629 | ZEBRA_IP_PREFIX_ROUTE_ADD); | |
2630 | else | |
2631 | ip_prefix_send_to_client(ifp->vrf_id, &p, | |
2632 | ZEBRA_IP_PREFIX_ROUTE_DEL); | |
2633 | } | |
2634 | return 0; | |
2635 | } | |
2636 | ||
2637 | /* | |
2638 | * zvni_gw_macip_add_to_client | |
2639 | */ | |
2640 | static int zvni_gw_macip_add(struct interface *ifp, zebra_vni_t *zvni, | |
2641 | struct ethaddr *macaddr, struct ipaddr *ip) | |
2642 | { | |
2643 | char buf[ETHER_ADDR_STRLEN]; | |
2644 | char buf2[INET6_ADDRSTRLEN]; | |
2645 | zebra_neigh_t *n = NULL; | |
2646 | zebra_mac_t *mac = NULL; | |
2647 | struct zebra_if *zif = NULL; | |
2648 | struct zebra_l2info_vxlan *vxl = NULL; | |
2649 | ||
2650 | zif = zvni->vxlan_if->info; | |
2651 | if (!zif) | |
2652 | return -1; | |
2653 | ||
2654 | vxl = &zif->l2info.vxl; | |
2655 | ||
2656 | mac = zvni_mac_lookup(zvni, macaddr); | |
2657 | if (!mac) { | |
2658 | mac = zvni_mac_add(zvni, macaddr); | |
2659 | if (!mac) { | |
2660 | flog_err(EC_ZEBRA_MAC_ADD_FAILED, | |
2661 | "Failed to add MAC %s intf %s(%u) VID %u", | |
2662 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2663 | ifp->name, ifp->ifindex, vxl->access_vlan); | |
2664 | return -1; | |
2665 | } | |
2666 | } | |
2667 | ||
2668 | /* Set "local" forwarding info. */ | |
2669 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
2670 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
2671 | SET_FLAG(mac->flags, ZEBRA_MAC_DEF_GW); | |
2672 | memset(&mac->fwd_info, 0, sizeof(mac->fwd_info)); | |
2673 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
2674 | mac->fwd_info.local.vid = vxl->access_vlan; | |
2675 | ||
2676 | n = zvni_neigh_lookup(zvni, ip); | |
2677 | if (!n) { | |
2678 | n = zvni_neigh_add(zvni, ip, macaddr); | |
2679 | if (!n) { | |
2680 | flog_err( | |
2681 | EC_ZEBRA_MAC_ADD_FAILED, | |
2682 | "Failed to add neighbor %s MAC %s intf %s(%u) -> VNI %u", | |
2683 | ipaddr2str(ip, buf2, sizeof(buf2)), | |
2684 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2685 | ifp->name, ifp->ifindex, zvni->vni); | |
2686 | return -1; | |
2687 | } | |
2688 | } | |
2689 | ||
2690 | /* Set "local" forwarding info. */ | |
2691 | SET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL); | |
2692 | SET_FLAG(n->flags, ZEBRA_NEIGH_DEF_GW); | |
2693 | ZEBRA_NEIGH_SET_ACTIVE(n); | |
2694 | /* Set Router flag (R-bit) */ | |
2695 | if (ip->ipa_type == IPADDR_V6) | |
2696 | SET_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG); | |
2697 | memcpy(&n->emac, macaddr, ETH_ALEN); | |
2698 | n->ifindex = ifp->ifindex; | |
2699 | ||
2700 | /* Only advertise in BGP if the knob is enabled */ | |
2701 | if (!advertise_gw_macip_enabled(zvni)) | |
2702 | return 0; | |
2703 | ||
2704 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2705 | zlog_debug( | |
2706 | "SVI %s(%u) L2-VNI %u, sending GW MAC %s IP %s add to BGP with flags 0x%x", | |
2707 | ifp->name, ifp->ifindex, zvni->vni, | |
2708 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2709 | ipaddr2str(ip, buf2, sizeof(buf2)), n->flags); | |
2710 | ||
2711 | zvni_neigh_send_add_to_client(zvni->vni, ip, macaddr, | |
2712 | n->flags, n->loc_seq); | |
2713 | ||
2714 | return 0; | |
2715 | } | |
2716 | ||
2717 | /* | |
2718 | * zvni_gw_macip_del_from_client | |
2719 | */ | |
2720 | static int zvni_gw_macip_del(struct interface *ifp, zebra_vni_t *zvni, | |
2721 | struct ipaddr *ip) | |
2722 | { | |
2723 | char buf1[ETHER_ADDR_STRLEN]; | |
2724 | char buf2[INET6_ADDRSTRLEN]; | |
2725 | zebra_neigh_t *n = NULL; | |
2726 | zebra_mac_t *mac = NULL; | |
2727 | ||
2728 | /* If the neigh entry is not present nothing to do*/ | |
2729 | n = zvni_neigh_lookup(zvni, ip); | |
2730 | if (!n) | |
2731 | return 0; | |
2732 | ||
2733 | /* mac entry should be present */ | |
2734 | mac = zvni_mac_lookup(zvni, &n->emac); | |
2735 | if (!mac) { | |
2736 | zlog_debug("MAC %s doesn't exist for neigh %s on VNI %u", | |
2737 | prefix_mac2str(&n->emac, buf1, sizeof(buf1)), | |
2738 | ipaddr2str(ip, buf2, sizeof(buf2)), zvni->vni); | |
2739 | return -1; | |
2740 | } | |
2741 | ||
2742 | /* If the entry is not local nothing to do*/ | |
2743 | if (!CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) | |
2744 | return -1; | |
2745 | ||
2746 | /* only need to delete the entry from bgp if we sent it before */ | |
2747 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2748 | zlog_debug( | |
2749 | "%u:SVI %s(%u) VNI %u, sending GW MAC %s IP %s del to BGP", | |
2750 | ifp->vrf_id, ifp->name, ifp->ifindex, zvni->vni, | |
2751 | prefix_mac2str(&(n->emac), buf1, sizeof(buf1)), | |
2752 | ipaddr2str(ip, buf2, sizeof(buf2))); | |
2753 | ||
2754 | /* Remove neighbor from BGP. */ | |
2755 | zvni_neigh_send_del_to_client(zvni->vni, &n->ip, &n->emac, | |
2756 | ZEBRA_MACIP_TYPE_GW); | |
2757 | ||
2758 | /* Delete this neighbor entry. */ | |
2759 | zvni_neigh_del(zvni, n); | |
2760 | ||
2761 | /* see if the mac needs to be deleted as well*/ | |
2762 | if (mac) | |
2763 | zvni_deref_ip2mac(zvni, mac); | |
2764 | ||
2765 | return 0; | |
2766 | } | |
2767 | ||
2768 | static void zvni_gw_macip_del_for_vni_hash(struct hash_backet *backet, | |
2769 | void *ctxt) | |
2770 | { | |
2771 | zebra_vni_t *zvni = NULL; | |
2772 | struct zebra_if *zif = NULL; | |
2773 | struct zebra_l2info_vxlan zl2_info; | |
2774 | struct interface *vlan_if = NULL; | |
2775 | struct interface *vrr_if = NULL; | |
2776 | struct interface *ifp; | |
2777 | ||
2778 | /* Add primary SVI MAC*/ | |
2779 | zvni = (zebra_vni_t *)backet->data; | |
2780 | ||
2781 | ifp = zvni->vxlan_if; | |
2782 | if (!ifp) | |
2783 | return; | |
2784 | zif = ifp->info; | |
2785 | ||
2786 | /* If down or not mapped to a bridge, we're done. */ | |
2787 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) | |
2788 | return; | |
2789 | ||
2790 | zl2_info = zif->l2info.vxl; | |
2791 | ||
2792 | vlan_if = | |
2793 | zvni_map_to_svi(zl2_info.access_vlan, zif->brslave_info.br_if); | |
2794 | if (!vlan_if) | |
2795 | return; | |
2796 | ||
2797 | /* Del primary MAC-IP */ | |
2798 | zvni_del_macip_for_intf(vlan_if, zvni); | |
2799 | ||
2800 | /* Del VRR MAC-IP - if any*/ | |
2801 | vrr_if = zebra_get_vrr_intf_for_svi(vlan_if); | |
2802 | if (vrr_if) | |
2803 | zvni_del_macip_for_intf(vrr_if, zvni); | |
2804 | ||
2805 | return; | |
2806 | } | |
2807 | ||
2808 | static void zvni_gw_macip_add_for_vni_hash(struct hash_backet *backet, | |
2809 | void *ctxt) | |
2810 | { | |
2811 | zebra_vni_t *zvni = NULL; | |
2812 | struct zebra_if *zif = NULL; | |
2813 | struct zebra_l2info_vxlan zl2_info; | |
2814 | struct interface *vlan_if = NULL; | |
2815 | struct interface *vrr_if = NULL; | |
2816 | struct interface *ifp = NULL; | |
2817 | ||
2818 | zvni = (zebra_vni_t *)backet->data; | |
2819 | ||
2820 | ifp = zvni->vxlan_if; | |
2821 | if (!ifp) | |
2822 | return; | |
2823 | zif = ifp->info; | |
2824 | ||
2825 | /* If down or not mapped to a bridge, we're done. */ | |
2826 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) | |
2827 | return; | |
2828 | zl2_info = zif->l2info.vxl; | |
2829 | ||
2830 | vlan_if = | |
2831 | zvni_map_to_svi(zl2_info.access_vlan, zif->brslave_info.br_if); | |
2832 | if (!vlan_if) | |
2833 | return; | |
2834 | ||
2835 | /* Add primary SVI MAC-IP */ | |
2836 | zvni_add_macip_for_intf(vlan_if, zvni); | |
2837 | ||
2838 | /* Add VRR MAC-IP - if any*/ | |
2839 | vrr_if = zebra_get_vrr_intf_for_svi(vlan_if); | |
2840 | if (vrr_if) | |
2841 | zvni_add_macip_for_intf(vrr_if, zvni); | |
2842 | ||
2843 | return; | |
2844 | } | |
2845 | ||
2846 | static int zvni_local_neigh_update(zebra_vni_t *zvni, | |
2847 | struct interface *ifp, | |
2848 | struct ipaddr *ip, | |
2849 | struct ethaddr *macaddr, | |
2850 | bool is_router) | |
2851 | { | |
2852 | char buf[ETHER_ADDR_STRLEN]; | |
2853 | char buf2[INET6_ADDRSTRLEN]; | |
2854 | struct zebra_vrf *zvrf; | |
2855 | zebra_neigh_t *n = NULL; | |
2856 | zebra_mac_t *zmac = NULL, *old_zmac = NULL; | |
2857 | uint32_t old_mac_seq = 0, mac_new_seq = 0; | |
2858 | bool upd_mac_seq = false; | |
2859 | bool neigh_mac_change = false; | |
2860 | bool neigh_on_hold = false; | |
2861 | bool neigh_was_remote = false; | |
2862 | bool do_dad = false; | |
2863 | struct in_addr vtep_ip = {.s_addr = 0}; | |
2864 | ||
2865 | /* Check if the MAC exists. */ | |
2866 | zmac = zvni_mac_lookup(zvni, macaddr); | |
2867 | if (!zmac) { | |
2868 | /* create a dummy MAC if the MAC is not already present */ | |
2869 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2870 | zlog_debug( | |
2871 | "AUTO MAC %s created for neigh %s on VNI %u", | |
2872 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2873 | ipaddr2str(ip, buf2, sizeof(buf2)), zvni->vni); | |
2874 | ||
2875 | zmac = zvni_mac_add(zvni, macaddr); | |
2876 | if (!zmac) { | |
2877 | zlog_debug("Failed to add MAC %s VNI %u", | |
2878 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2879 | zvni->vni); | |
2880 | return -1; | |
2881 | } | |
2882 | ||
2883 | memset(&zmac->fwd_info, 0, sizeof(zmac->fwd_info)); | |
2884 | memset(&zmac->flags, 0, sizeof(uint32_t)); | |
2885 | SET_FLAG(zmac->flags, ZEBRA_MAC_AUTO); | |
2886 | } else { | |
2887 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_REMOTE)) { | |
2888 | /* | |
2889 | * We don't change the MAC to local upon a neighbor | |
2890 | * learn event, we wait for the explicit local MAC | |
2891 | * learn. However, we have to compute its sequence | |
2892 | * number in preparation for when it actually turns | |
2893 | * local. | |
2894 | */ | |
2895 | upd_mac_seq = true; | |
2896 | } | |
2897 | } | |
2898 | ||
2899 | zvrf = vrf_info_lookup(zvni->vrf_id); | |
2900 | if (!zvrf) | |
2901 | return -1; | |
2902 | ||
2903 | /* Check if the neighbor exists. */ | |
2904 | n = zvni_neigh_lookup(zvni, ip); | |
2905 | if (!n) { | |
2906 | /* New neighbor - create */ | |
2907 | n = zvni_neigh_add(zvni, ip, macaddr); | |
2908 | if (!n) { | |
2909 | flog_err( | |
2910 | EC_ZEBRA_MAC_ADD_FAILED, | |
2911 | "Failed to add neighbor %s MAC %s intf %s(%u) -> VNI %u", | |
2912 | ipaddr2str(ip, buf2, sizeof(buf2)), | |
2913 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2914 | ifp->name, ifp->ifindex, zvni->vni); | |
2915 | return -1; | |
2916 | } | |
2917 | /* Set "local" forwarding info. */ | |
2918 | SET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL); | |
2919 | n->ifindex = ifp->ifindex; | |
2920 | } else { | |
2921 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) { | |
2922 | bool mac_different; | |
2923 | bool cur_is_router; | |
2924 | ||
2925 | /* Note any changes and see if of interest to BGP. */ | |
2926 | mac_different = (memcmp(n->emac.octet, | |
2927 | macaddr->octet, ETH_ALEN) != 0) ? 1 : 0; | |
2928 | cur_is_router = !!CHECK_FLAG(n->flags, | |
2929 | ZEBRA_NEIGH_ROUTER_FLAG); | |
2930 | if (!mac_different && is_router == cur_is_router) { | |
2931 | n->ifindex = ifp->ifindex; | |
2932 | return 0; | |
2933 | } | |
2934 | ||
2935 | if (!mac_different) { | |
2936 | bool is_neigh_freezed = false; | |
2937 | ||
2938 | /* Only the router flag has changed. */ | |
2939 | if (is_router) | |
2940 | SET_FLAG(n->flags, | |
2941 | ZEBRA_NEIGH_ROUTER_FLAG); | |
2942 | else | |
2943 | UNSET_FLAG(n->flags, | |
2944 | ZEBRA_NEIGH_ROUTER_FLAG); | |
2945 | ||
2946 | /* Neigh is in freeze state and freeze action | |
2947 | * is enabled, do not send update to client. | |
2948 | */ | |
2949 | is_neigh_freezed = (zvrf->dup_addr_detect && | |
2950 | zvrf->dad_freeze && | |
2951 | CHECK_FLAG(n->flags, | |
2952 | ZEBRA_NEIGH_DUPLICATE)); | |
2953 | ||
2954 | if (IS_ZEBRA_NEIGH_ACTIVE(n) && | |
2955 | !is_neigh_freezed) | |
2956 | return zvni_neigh_send_add_to_client( | |
2957 | zvni->vni, ip, macaddr, | |
2958 | n->flags, n->loc_seq); | |
2959 | return 0; | |
2960 | } | |
2961 | ||
2962 | /* The MAC has changed, need to issue a delete | |
2963 | * first as this means a different MACIP route. | |
2964 | * Also, need to do some unlinking/relinking. | |
2965 | * We also need to update the MAC's sequence number | |
2966 | * in different situations. | |
2967 | */ | |
2968 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) | |
2969 | zvni_neigh_send_del_to_client(zvni->vni, &n->ip, | |
2970 | &n->emac, 0); | |
2971 | old_zmac = zvni_mac_lookup(zvni, &n->emac); | |
2972 | if (old_zmac) { | |
2973 | old_mac_seq = CHECK_FLAG(old_zmac->flags, | |
2974 | ZEBRA_MAC_REMOTE) ? | |
2975 | old_zmac->rem_seq : old_zmac->loc_seq; | |
2976 | neigh_mac_change = upd_mac_seq = true; | |
2977 | listnode_delete(old_zmac->neigh_list, n); | |
2978 | zvni_deref_ip2mac(zvni, old_zmac); | |
2979 | } | |
2980 | ||
2981 | /* Update the forwarding info. */ | |
2982 | n->ifindex = ifp->ifindex; | |
2983 | memcpy(&n->emac, macaddr, ETH_ALEN); | |
2984 | ||
2985 | /* Link to new MAC */ | |
2986 | listnode_add_sort(zmac->neigh_list, n); | |
2987 | } else if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) { | |
2988 | /* | |
2989 | * Neighbor has moved from remote to local. Its | |
2990 | * MAC could have also changed as part of the move. | |
2991 | */ | |
2992 | if (memcmp(n->emac.octet, macaddr->octet, | |
2993 | ETH_ALEN) != 0) { | |
2994 | old_zmac = zvni_mac_lookup(zvni, &n->emac); | |
2995 | if (old_zmac) { | |
2996 | old_mac_seq = CHECK_FLAG( | |
2997 | old_zmac->flags, | |
2998 | ZEBRA_MAC_REMOTE) ? | |
2999 | old_zmac->rem_seq : | |
3000 | old_zmac->loc_seq; | |
3001 | neigh_mac_change = upd_mac_seq = true; | |
3002 | listnode_delete(old_zmac->neigh_list, | |
3003 | n); | |
3004 | zvni_deref_ip2mac(zvni, old_zmac); | |
3005 | } | |
3006 | ||
3007 | /* Link to new MAC */ | |
3008 | memcpy(&n->emac, macaddr, ETH_ALEN); | |
3009 | listnode_add_sort(zmac->neigh_list, n); | |
3010 | } | |
3011 | /* Based on Mobility event Scenario-B from the | |
3012 | * draft, neigh's previous state was remote treat this | |
3013 | * event for DAD. | |
3014 | */ | |
3015 | neigh_was_remote = true; | |
3016 | vtep_ip = n->r_vtep_ip; | |
3017 | /* Mark appropriately */ | |
3018 | UNSET_FLAG(n->flags, ZEBRA_NEIGH_REMOTE); | |
3019 | n->r_vtep_ip.s_addr = 0; | |
3020 | SET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL); | |
3021 | n->ifindex = ifp->ifindex; | |
3022 | } | |
3023 | } | |
3024 | ||
3025 | /* If MAC was previously remote, or the neighbor had a different | |
3026 | * MAC earlier, recompute the sequence number. | |
3027 | */ | |
3028 | if (upd_mac_seq) { | |
3029 | uint32_t seq1, seq2; | |
3030 | ||
3031 | seq1 = CHECK_FLAG(zmac->flags, ZEBRA_MAC_REMOTE) ? | |
3032 | zmac->rem_seq + 1 : zmac->loc_seq; | |
3033 | seq2 = neigh_mac_change ? old_mac_seq + 1 : 0; | |
3034 | mac_new_seq = zmac->loc_seq < MAX(seq1, seq2) ? | |
3035 | MAX(seq1, seq2) : zmac->loc_seq; | |
3036 | } | |
3037 | ||
3038 | /* Mark Router flag (R-bit) */ | |
3039 | if (is_router) | |
3040 | SET_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG); | |
3041 | else | |
3042 | UNSET_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG); | |
3043 | ||
3044 | /* Check old and/or new MAC detected as duplicate mark | |
3045 | * the neigh as duplicate | |
3046 | */ | |
3047 | if (zebra_vxlan_ip_inherit_dad_from_mac(zvrf, old_zmac, zmac, n)) { | |
3048 | flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED, | |
3049 | "VNI %u: MAC %s IP %s detected as duplicate during local update, inherit duplicate from MAC", | |
3050 | zvni->vni, | |
3051 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
3052 | ipaddr2str(&n->ip, buf2, sizeof(buf2))); | |
3053 | } | |
3054 | ||
3055 | /* For IP Duplicate Address Detection (DAD) is trigger, | |
3056 | * when the event is extended mobility based on scenario-B | |
3057 | * from the draft, IP/Neigh's MAC binding changed and | |
3058 | * neigh's previous state was remote. | |
3059 | */ | |
3060 | if (neigh_mac_change && neigh_was_remote) | |
3061 | do_dad = true; | |
3062 | ||
3063 | zebra_vxlan_dup_addr_detect_for_neigh(zvrf, n, vtep_ip, do_dad, | |
3064 | &neigh_on_hold, true); | |
3065 | ||
3066 | /* Before we program this in BGP, we need to check if MAC is locally | |
3067 | * learnt. If not, force neighbor to be inactive and reset its seq. | |
3068 | */ | |
3069 | if (!CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) { | |
3070 | ZEBRA_NEIGH_SET_INACTIVE(n); | |
3071 | n->loc_seq = 0; | |
3072 | zmac->loc_seq = mac_new_seq; | |
3073 | return 0; | |
3074 | } | |
3075 | ||
3076 | /* If the MAC's sequence number has changed, inform the MAC and all | |
3077 | * neighbors associated with the MAC to BGP, else just inform this | |
3078 | * neighbor. | |
3079 | */ | |
3080 | if (upd_mac_seq && zmac->loc_seq != mac_new_seq) { | |
3081 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3082 | zlog_debug("Seq changed for MAC %s VNI %u - old %u new %u", | |
3083 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
3084 | zvni->vni, zmac->loc_seq, mac_new_seq); | |
3085 | zmac->loc_seq = mac_new_seq; | |
3086 | if (zvni_mac_send_add_to_client(zvni->vni, macaddr, | |
3087 | zmac->flags, zmac->loc_seq)) | |
3088 | return -1; | |
3089 | zvni_process_neigh_on_local_mac_change(zvni, zmac, 1); | |
3090 | return 0; | |
3091 | } | |
3092 | ||
3093 | ZEBRA_NEIGH_SET_ACTIVE(n); | |
3094 | n->loc_seq = zmac->loc_seq; | |
3095 | ||
3096 | if (!neigh_on_hold) | |
3097 | return zvni_neigh_send_add_to_client(zvni->vni, ip, macaddr, | |
3098 | n->flags, n->loc_seq); | |
3099 | return 0; | |
3100 | } | |
3101 | ||
3102 | static int zvni_remote_neigh_update(zebra_vni_t *zvni, | |
3103 | struct interface *ifp, | |
3104 | struct ipaddr *ip, | |
3105 | struct ethaddr *macaddr, | |
3106 | uint16_t state) | |
3107 | { | |
3108 | char buf[ETHER_ADDR_STRLEN]; | |
3109 | char buf2[INET6_ADDRSTRLEN]; | |
3110 | zebra_neigh_t *n = NULL; | |
3111 | zebra_mac_t *zmac = NULL; | |
3112 | ||
3113 | /* If the neighbor is unknown, there is no further action. */ | |
3114 | n = zvni_neigh_lookup(zvni, ip); | |
3115 | if (!n) | |
3116 | return 0; | |
3117 | ||
3118 | /* If a remote entry, see if it needs to be refreshed */ | |
3119 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) { | |
3120 | #ifdef GNU_LINUX | |
3121 | if (state & NUD_STALE) | |
3122 | zvni_neigh_install(zvni, n); | |
3123 | #endif | |
3124 | } else { | |
3125 | /* We got a "remote" neighbor notification for an entry | |
3126 | * we think is local. This can happen in a multihoming | |
3127 | * scenario - but only if the MAC is already "remote". | |
3128 | * Just mark our entry as "remote". | |
3129 | */ | |
3130 | zmac = zvni_mac_lookup(zvni, macaddr); | |
3131 | if (!zmac || !CHECK_FLAG(zmac->flags, ZEBRA_MAC_REMOTE)) { | |
3132 | zlog_debug( | |
3133 | "Ignore remote neigh %s (MAC %s) on L2-VNI %u - MAC unknown or local", | |
3134 | ipaddr2str(&n->ip, buf2, sizeof(buf2)), | |
3135 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
3136 | zvni->vni); | |
3137 | return -1; | |
3138 | } | |
3139 | ||
3140 | UNSET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL); | |
3141 | SET_FLAG(n->flags, ZEBRA_NEIGH_REMOTE); | |
3142 | ZEBRA_NEIGH_SET_ACTIVE(n); | |
3143 | n->r_vtep_ip = zmac->fwd_info.r_vtep_ip; | |
3144 | } | |
3145 | ||
3146 | return 0; | |
3147 | } | |
3148 | ||
3149 | /* | |
3150 | * Make hash key for MAC. | |
3151 | */ | |
3152 | static unsigned int mac_hash_keymake(void *p) | |
3153 | { | |
3154 | zebra_mac_t *pmac = p; | |
3155 | const void *pnt = (void *)pmac->macaddr.octet; | |
3156 | ||
3157 | return jhash(pnt, ETH_ALEN, 0xa5a5a55a); | |
3158 | } | |
3159 | ||
3160 | /* | |
3161 | * Compare two MAC addresses. | |
3162 | */ | |
3163 | static bool mac_cmp(const void *p1, const void *p2) | |
3164 | { | |
3165 | const zebra_mac_t *pmac1 = p1; | |
3166 | const zebra_mac_t *pmac2 = p2; | |
3167 | ||
3168 | if (pmac1 == NULL && pmac2 == NULL) | |
3169 | return true; | |
3170 | ||
3171 | if (pmac1 == NULL || pmac2 == NULL) | |
3172 | return false; | |
3173 | ||
3174 | return (memcmp(pmac1->macaddr.octet, pmac2->macaddr.octet, ETH_ALEN) | |
3175 | == 0); | |
3176 | } | |
3177 | ||
3178 | /* | |
3179 | * Callback to allocate MAC hash entry. | |
3180 | */ | |
3181 | static void *zvni_mac_alloc(void *p) | |
3182 | { | |
3183 | const zebra_mac_t *tmp_mac = p; | |
3184 | zebra_mac_t *mac; | |
3185 | ||
3186 | mac = XCALLOC(MTYPE_MAC, sizeof(zebra_mac_t)); | |
3187 | *mac = *tmp_mac; | |
3188 | ||
3189 | return ((void *)mac); | |
3190 | } | |
3191 | ||
3192 | /* | |
3193 | * Add MAC entry. | |
3194 | */ | |
3195 | static zebra_mac_t *zvni_mac_add(zebra_vni_t *zvni, struct ethaddr *macaddr) | |
3196 | { | |
3197 | zebra_mac_t tmp_mac; | |
3198 | zebra_mac_t *mac = NULL; | |
3199 | ||
3200 | memset(&tmp_mac, 0, sizeof(zebra_mac_t)); | |
3201 | memcpy(&tmp_mac.macaddr, macaddr, ETH_ALEN); | |
3202 | mac = hash_get(zvni->mac_table, &tmp_mac, zvni_mac_alloc); | |
3203 | assert(mac); | |
3204 | ||
3205 | mac->neigh_list = list_new(); | |
3206 | mac->neigh_list->cmp = neigh_list_cmp; | |
3207 | ||
3208 | return mac; | |
3209 | } | |
3210 | ||
3211 | /* | |
3212 | * Delete MAC entry. | |
3213 | */ | |
3214 | static int zvni_mac_del(zebra_vni_t *zvni, zebra_mac_t *mac) | |
3215 | { | |
3216 | zebra_mac_t *tmp_mac; | |
3217 | ||
3218 | list_delete(&mac->neigh_list); | |
3219 | ||
3220 | /* Free the VNI hash entry and allocated memory. */ | |
3221 | tmp_mac = hash_release(zvni->mac_table, mac); | |
3222 | if (tmp_mac) | |
3223 | XFREE(MTYPE_MAC, tmp_mac); | |
3224 | ||
3225 | return 0; | |
3226 | } | |
3227 | ||
3228 | /* | |
3229 | * Free MAC hash entry (callback) | |
3230 | */ | |
3231 | static void zvni_mac_del_hash_entry(struct hash_backet *backet, void *arg) | |
3232 | { | |
3233 | struct mac_walk_ctx *wctx = arg; | |
3234 | zebra_mac_t *mac = backet->data; | |
3235 | ||
3236 | if (((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_LOCAL)) | |
3237 | || ((wctx->flags & DEL_REMOTE_MAC) | |
3238 | && (mac->flags & ZEBRA_MAC_REMOTE)) | |
3239 | || ((wctx->flags & DEL_REMOTE_MAC_FROM_VTEP) | |
3240 | && (mac->flags & ZEBRA_MAC_REMOTE) | |
3241 | && IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, | |
3242 | &wctx->r_vtep_ip))) { | |
3243 | if (wctx->upd_client && (mac->flags & ZEBRA_MAC_LOCAL)) { | |
3244 | zvni_mac_send_del_to_client(wctx->zvni->vni, | |
3245 | &mac->macaddr); | |
3246 | } | |
3247 | ||
3248 | if (wctx->uninstall) | |
3249 | zvni_mac_uninstall(wctx->zvni, mac); | |
3250 | ||
3251 | zvni_mac_del(wctx->zvni, mac); | |
3252 | } | |
3253 | ||
3254 | return; | |
3255 | } | |
3256 | ||
3257 | /* | |
3258 | * Delete all MAC entries from specific VTEP for a particular VNI. | |
3259 | */ | |
3260 | static void zvni_mac_del_from_vtep(zebra_vni_t *zvni, int uninstall, | |
3261 | struct in_addr *r_vtep_ip) | |
3262 | { | |
3263 | struct mac_walk_ctx wctx; | |
3264 | ||
3265 | if (!zvni->mac_table) | |
3266 | return; | |
3267 | ||
3268 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); | |
3269 | wctx.zvni = zvni; | |
3270 | wctx.uninstall = uninstall; | |
3271 | wctx.flags = DEL_REMOTE_MAC_FROM_VTEP; | |
3272 | wctx.r_vtep_ip = *r_vtep_ip; | |
3273 | ||
3274 | hash_iterate(zvni->mac_table, zvni_mac_del_hash_entry, &wctx); | |
3275 | } | |
3276 | ||
3277 | /* | |
3278 | * Delete all MAC entries for this VNI. | |
3279 | */ | |
3280 | static void zvni_mac_del_all(zebra_vni_t *zvni, int uninstall, int upd_client, | |
3281 | uint32_t flags) | |
3282 | { | |
3283 | struct mac_walk_ctx wctx; | |
3284 | ||
3285 | if (!zvni->mac_table) | |
3286 | return; | |
3287 | ||
3288 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); | |
3289 | wctx.zvni = zvni; | |
3290 | wctx.uninstall = uninstall; | |
3291 | wctx.upd_client = upd_client; | |
3292 | wctx.flags = flags; | |
3293 | ||
3294 | hash_iterate(zvni->mac_table, zvni_mac_del_hash_entry, &wctx); | |
3295 | } | |
3296 | ||
3297 | /* | |
3298 | * Look up MAC hash entry. | |
3299 | */ | |
3300 | static zebra_mac_t *zvni_mac_lookup(zebra_vni_t *zvni, struct ethaddr *mac) | |
3301 | { | |
3302 | zebra_mac_t tmp; | |
3303 | zebra_mac_t *pmac; | |
3304 | ||
3305 | memset(&tmp, 0, sizeof(tmp)); | |
3306 | memcpy(&tmp.macaddr, mac, ETH_ALEN); | |
3307 | pmac = hash_lookup(zvni->mac_table, &tmp); | |
3308 | ||
3309 | return pmac; | |
3310 | } | |
3311 | ||
3312 | /* | |
3313 | * Inform BGP about local MAC addition. | |
3314 | */ | |
3315 | static int zvni_mac_send_add_to_client(vni_t vni, struct ethaddr *macaddr, | |
3316 | uint8_t mac_flags, uint32_t seq) | |
3317 | { | |
3318 | uint8_t flags = 0; | |
3319 | ||
3320 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_STICKY)) | |
3321 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
3322 | if (CHECK_FLAG(mac_flags, ZEBRA_MAC_DEF_GW)) | |
3323 | SET_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
3324 | ||
3325 | return zvni_macip_send_msg_to_client(vni, macaddr, NULL, flags, | |
3326 | seq, ZEBRA_MACIP_ADD); | |
3327 | } | |
3328 | ||
3329 | /* | |
3330 | * Inform BGP about local MAC deletion. | |
3331 | */ | |
3332 | static int zvni_mac_send_del_to_client(vni_t vni, struct ethaddr *macaddr) | |
3333 | { | |
3334 | return zvni_macip_send_msg_to_client(vni, macaddr, NULL, 0 /* flags */, | |
3335 | 0 /* seq */, ZEBRA_MACIP_DEL); | |
3336 | } | |
3337 | ||
3338 | /* | |
3339 | * Map port or (port, VLAN) to a VNI. This is invoked upon getting MAC | |
3340 | * notifications, to see if they are of interest. | |
3341 | */ | |
3342 | static zebra_vni_t *zvni_map_vlan(struct interface *ifp, | |
3343 | struct interface *br_if, vlanid_t vid) | |
3344 | { | |
3345 | struct zebra_ns *zns; | |
3346 | struct route_node *rn; | |
3347 | struct interface *tmp_if = NULL; | |
3348 | struct zebra_if *zif; | |
3349 | struct zebra_l2info_bridge *br; | |
3350 | struct zebra_l2info_vxlan *vxl = NULL; | |
3351 | uint8_t bridge_vlan_aware; | |
3352 | zebra_vni_t *zvni; | |
3353 | int found = 0; | |
3354 | ||
3355 | /* Determine if bridge is VLAN-aware or not */ | |
3356 | zif = br_if->info; | |
3357 | assert(zif); | |
3358 | br = &zif->l2info.br; | |
3359 | bridge_vlan_aware = br->vlan_aware; | |
3360 | ||
3361 | /* See if this interface (or interface plus VLAN Id) maps to a VxLAN */ | |
3362 | /* TODO: Optimize with a hash. */ | |
3363 | zns = zebra_ns_lookup(NS_DEFAULT); | |
3364 | for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) { | |
3365 | tmp_if = (struct interface *)rn->info; | |
3366 | if (!tmp_if) | |
3367 | continue; | |
3368 | zif = tmp_if->info; | |
3369 | if (!zif || zif->zif_type != ZEBRA_IF_VXLAN) | |
3370 | continue; | |
3371 | if (!if_is_operative(tmp_if)) | |
3372 | continue; | |
3373 | vxl = &zif->l2info.vxl; | |
3374 | ||
3375 | if (zif->brslave_info.br_if != br_if) | |
3376 | continue; | |
3377 | ||
3378 | if (!bridge_vlan_aware || vxl->access_vlan == vid) { | |
3379 | found = 1; | |
3380 | break; | |
3381 | } | |
3382 | } | |
3383 | ||
3384 | if (!found) | |
3385 | return NULL; | |
3386 | ||
3387 | zvni = zvni_lookup(vxl->vni); | |
3388 | return zvni; | |
3389 | } | |
3390 | ||
3391 | /* | |
3392 | * Map SVI and associated bridge to a VNI. This is invoked upon getting | |
3393 | * neighbor notifications, to see if they are of interest. | |
3394 | */ | |
3395 | static zebra_vni_t *zvni_from_svi(struct interface *ifp, | |
3396 | struct interface *br_if) | |
3397 | { | |
3398 | struct zebra_ns *zns; | |
3399 | struct route_node *rn; | |
3400 | struct interface *tmp_if = NULL; | |
3401 | struct zebra_if *zif; | |
3402 | struct zebra_l2info_bridge *br; | |
3403 | struct zebra_l2info_vxlan *vxl = NULL; | |
3404 | uint8_t bridge_vlan_aware; | |
3405 | vlanid_t vid = 0; | |
3406 | zebra_vni_t *zvni; | |
3407 | int found = 0; | |
3408 | ||
3409 | if (!br_if) | |
3410 | return NULL; | |
3411 | ||
3412 | /* Make sure the linked interface is a bridge. */ | |
3413 | if (!IS_ZEBRA_IF_BRIDGE(br_if)) | |
3414 | return NULL; | |
3415 | ||
3416 | /* Determine if bridge is VLAN-aware or not */ | |
3417 | zif = br_if->info; | |
3418 | assert(zif); | |
3419 | br = &zif->l2info.br; | |
3420 | bridge_vlan_aware = br->vlan_aware; | |
3421 | if (bridge_vlan_aware) { | |
3422 | struct zebra_l2info_vlan *vl; | |
3423 | ||
3424 | if (!IS_ZEBRA_IF_VLAN(ifp)) | |
3425 | return NULL; | |
3426 | ||
3427 | zif = ifp->info; | |
3428 | assert(zif); | |
3429 | vl = &zif->l2info.vl; | |
3430 | vid = vl->vid; | |
3431 | } | |
3432 | ||
3433 | /* See if this interface (or interface plus VLAN Id) maps to a VxLAN */ | |
3434 | /* TODO: Optimize with a hash. */ | |
3435 | zns = zebra_ns_lookup(NS_DEFAULT); | |
3436 | for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) { | |
3437 | tmp_if = (struct interface *)rn->info; | |
3438 | if (!tmp_if) | |
3439 | continue; | |
3440 | zif = tmp_if->info; | |
3441 | if (!zif || zif->zif_type != ZEBRA_IF_VXLAN) | |
3442 | continue; | |
3443 | if (!if_is_operative(tmp_if)) | |
3444 | continue; | |
3445 | vxl = &zif->l2info.vxl; | |
3446 | ||
3447 | if (zif->brslave_info.br_if != br_if) | |
3448 | continue; | |
3449 | ||
3450 | if (!bridge_vlan_aware || vxl->access_vlan == vid) { | |
3451 | found = 1; | |
3452 | break; | |
3453 | } | |
3454 | } | |
3455 | ||
3456 | if (!found) | |
3457 | return NULL; | |
3458 | ||
3459 | zvni = zvni_lookup(vxl->vni); | |
3460 | return zvni; | |
3461 | } | |
3462 | ||
3463 | /* Map to SVI on bridge corresponding to specified VLAN. This can be one | |
3464 | * of two cases: | |
3465 | * (a) In the case of a VLAN-aware bridge, the SVI is a L3 VLAN interface | |
3466 | * linked to the bridge | |
3467 | * (b) In the case of a VLAN-unaware bridge, the SVI is the bridge inteface | |
3468 | * itself | |
3469 | */ | |
3470 | static struct interface *zvni_map_to_svi(vlanid_t vid, struct interface *br_if) | |
3471 | { | |
3472 | struct zebra_ns *zns; | |
3473 | struct route_node *rn; | |
3474 | struct interface *tmp_if = NULL; | |
3475 | struct zebra_if *zif; | |
3476 | struct zebra_l2info_bridge *br; | |
3477 | struct zebra_l2info_vlan *vl; | |
3478 | uint8_t bridge_vlan_aware; | |
3479 | int found = 0; | |
3480 | ||
3481 | /* Defensive check, caller expected to invoke only with valid bridge. */ | |
3482 | if (!br_if) | |
3483 | return NULL; | |
3484 | ||
3485 | /* Determine if bridge is VLAN-aware or not */ | |
3486 | zif = br_if->info; | |
3487 | assert(zif); | |
3488 | br = &zif->l2info.br; | |
3489 | bridge_vlan_aware = br->vlan_aware; | |
3490 | ||
3491 | /* Check oper status of the SVI. */ | |
3492 | if (!bridge_vlan_aware) | |
3493 | return if_is_operative(br_if) ? br_if : NULL; | |
3494 | ||
3495 | /* Identify corresponding VLAN interface. */ | |
3496 | /* TODO: Optimize with a hash. */ | |
3497 | zns = zebra_ns_lookup(NS_DEFAULT); | |
3498 | for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) { | |
3499 | tmp_if = (struct interface *)rn->info; | |
3500 | /* Check oper status of the SVI. */ | |
3501 | if (!tmp_if || !if_is_operative(tmp_if)) | |
3502 | continue; | |
3503 | zif = tmp_if->info; | |
3504 | if (!zif || zif->zif_type != ZEBRA_IF_VLAN | |
3505 | || zif->link != br_if) | |
3506 | continue; | |
3507 | vl = (struct zebra_l2info_vlan *)&zif->l2info.vl; | |
3508 | ||
3509 | if (vl->vid == vid) { | |
3510 | found = 1; | |
3511 | break; | |
3512 | } | |
3513 | } | |
3514 | ||
3515 | return found ? tmp_if : NULL; | |
3516 | } | |
3517 | ||
3518 | /* | |
3519 | * Install remote MAC into the kernel. | |
3520 | */ | |
3521 | static int zvni_mac_install(zebra_vni_t *zvni, zebra_mac_t *mac) | |
3522 | { | |
3523 | struct zebra_if *zif; | |
3524 | struct zebra_l2info_vxlan *vxl; | |
3525 | bool sticky; | |
3526 | ||
3527 | if (!(mac->flags & ZEBRA_MAC_REMOTE)) | |
3528 | return 0; | |
3529 | ||
3530 | zif = zvni->vxlan_if->info; | |
3531 | if (!zif) | |
3532 | return -1; | |
3533 | vxl = &zif->l2info.vxl; | |
3534 | ||
3535 | sticky = !!CHECK_FLAG(mac->flags, | |
3536 | (ZEBRA_MAC_STICKY | ZEBRA_MAC_REMOTE_DEF_GW)); | |
3537 | ||
3538 | return kernel_add_mac(zvni->vxlan_if, vxl->access_vlan, &mac->macaddr, | |
3539 | mac->fwd_info.r_vtep_ip, sticky); | |
3540 | } | |
3541 | ||
3542 | /* | |
3543 | * Uninstall remote MAC from the kernel. | |
3544 | */ | |
3545 | static int zvni_mac_uninstall(zebra_vni_t *zvni, zebra_mac_t *mac) | |
3546 | { | |
3547 | struct zebra_if *zif; | |
3548 | struct zebra_l2info_vxlan *vxl; | |
3549 | struct in_addr vtep_ip; | |
3550 | struct interface *ifp; | |
3551 | ||
3552 | if (!(mac->flags & ZEBRA_MAC_REMOTE)) | |
3553 | return 0; | |
3554 | ||
3555 | if (!zvni->vxlan_if) { | |
3556 | zlog_debug("VNI %u hash %p couldn't be uninstalled - no intf", | |
3557 | zvni->vni, zvni); | |
3558 | return -1; | |
3559 | } | |
3560 | ||
3561 | zif = zvni->vxlan_if->info; | |
3562 | if (!zif) | |
3563 | return -1; | |
3564 | vxl = &zif->l2info.vxl; | |
3565 | ||
3566 | ifp = zvni->vxlan_if; | |
3567 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
3568 | ||
3569 | return kernel_del_mac(ifp, vxl->access_vlan, &mac->macaddr, vtep_ip); | |
3570 | } | |
3571 | ||
3572 | /* | |
3573 | * Install MAC hash entry - called upon access VLAN change. | |
3574 | */ | |
3575 | static void zvni_install_mac_hash(struct hash_backet *backet, void *ctxt) | |
3576 | { | |
3577 | zebra_mac_t *mac; | |
3578 | struct mac_walk_ctx *wctx = ctxt; | |
3579 | ||
3580 | mac = (zebra_mac_t *)backet->data; | |
3581 | ||
3582 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) | |
3583 | zvni_mac_install(wctx->zvni, mac); | |
3584 | } | |
3585 | ||
3586 | /* | |
3587 | * Count of remote neighbors referencing this MAC. | |
3588 | */ | |
3589 | static int remote_neigh_count(zebra_mac_t *zmac) | |
3590 | { | |
3591 | zebra_neigh_t *n = NULL; | |
3592 | struct listnode *node = NULL; | |
3593 | int count = 0; | |
3594 | ||
3595 | for (ALL_LIST_ELEMENTS_RO(zmac->neigh_list, node, n)) { | |
3596 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) | |
3597 | count++; | |
3598 | } | |
3599 | ||
3600 | return count; | |
3601 | } | |
3602 | ||
3603 | /* | |
3604 | * Decrement neighbor refcount of MAC; uninstall and free it if | |
3605 | * appropriate. | |
3606 | */ | |
3607 | static void zvni_deref_ip2mac(zebra_vni_t *zvni, zebra_mac_t *mac) | |
3608 | { | |
3609 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) | |
3610 | return; | |
3611 | ||
3612 | /* If all remote neighbors referencing a remote MAC go away, | |
3613 | * we need to uninstall the MAC. | |
3614 | */ | |
3615 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) && | |
3616 | remote_neigh_count(mac) == 0) { | |
3617 | zvni_mac_uninstall(zvni, mac); | |
3618 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
3619 | } | |
3620 | ||
3621 | /* If no neighbors, delete the MAC. */ | |
3622 | if (list_isempty(mac->neigh_list)) | |
3623 | zvni_mac_del(zvni, mac); | |
3624 | } | |
3625 | ||
3626 | /* | |
3627 | * Read and populate local MACs and neighbors corresponding to this VNI. | |
3628 | */ | |
3629 | static void zvni_read_mac_neigh(zebra_vni_t *zvni, struct interface *ifp) | |
3630 | { | |
3631 | struct zebra_ns *zns; | |
3632 | struct zebra_if *zif; | |
3633 | struct interface *vlan_if; | |
3634 | struct zebra_l2info_vxlan *vxl; | |
3635 | struct interface *vrr_if; | |
3636 | ||
3637 | zif = ifp->info; | |
3638 | vxl = &zif->l2info.vxl; | |
3639 | zns = zebra_ns_lookup(NS_DEFAULT); | |
3640 | ||
3641 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3642 | zlog_debug( | |
3643 | "Reading MAC FDB and Neighbors for intf %s(%u) VNI %u master %u", | |
3644 | ifp->name, ifp->ifindex, zvni->vni, | |
3645 | zif->brslave_info.bridge_ifindex); | |
3646 | ||
3647 | macfdb_read_for_bridge(zns, ifp, zif->brslave_info.br_if); | |
3648 | vlan_if = zvni_map_to_svi(vxl->access_vlan, zif->brslave_info.br_if); | |
3649 | if (vlan_if) { | |
3650 | ||
3651 | /* Add SVI MAC-IP */ | |
3652 | zvni_add_macip_for_intf(vlan_if, zvni); | |
3653 | ||
3654 | /* Add VRR MAC-IP - if any*/ | |
3655 | vrr_if = zebra_get_vrr_intf_for_svi(vlan_if); | |
3656 | if (vrr_if) | |
3657 | zvni_add_macip_for_intf(vrr_if, zvni); | |
3658 | ||
3659 | neigh_read_for_vlan(zns, vlan_if); | |
3660 | } | |
3661 | } | |
3662 | ||
3663 | /* | |
3664 | * Hash function for VNI. | |
3665 | */ | |
3666 | static unsigned int vni_hash_keymake(void *p) | |
3667 | { | |
3668 | const zebra_vni_t *zvni = p; | |
3669 | ||
3670 | return (jhash_1word(zvni->vni, 0)); | |
3671 | } | |
3672 | ||
3673 | /* | |
3674 | * Compare 2 VNI hash entries. | |
3675 | */ | |
3676 | static bool vni_hash_cmp(const void *p1, const void *p2) | |
3677 | { | |
3678 | const zebra_vni_t *zvni1 = p1; | |
3679 | const zebra_vni_t *zvni2 = p2; | |
3680 | ||
3681 | return (zvni1->vni == zvni2->vni); | |
3682 | } | |
3683 | ||
3684 | static int vni_list_cmp(void *p1, void *p2) | |
3685 | { | |
3686 | const zebra_vni_t *zvni1 = p1; | |
3687 | const zebra_vni_t *zvni2 = p2; | |
3688 | ||
3689 | if (zvni1->vni == zvni2->vni) | |
3690 | return 0; | |
3691 | return (zvni1->vni < zvni2->vni) ? -1 : 1; | |
3692 | } | |
3693 | ||
3694 | /* | |
3695 | * Callback to allocate VNI hash entry. | |
3696 | */ | |
3697 | static void *zvni_alloc(void *p) | |
3698 | { | |
3699 | const zebra_vni_t *tmp_vni = p; | |
3700 | zebra_vni_t *zvni; | |
3701 | ||
3702 | zvni = XCALLOC(MTYPE_ZVNI, sizeof(zebra_vni_t)); | |
3703 | zvni->vni = tmp_vni->vni; | |
3704 | return ((void *)zvni); | |
3705 | } | |
3706 | ||
3707 | /* | |
3708 | * Look up VNI hash entry. | |
3709 | */ | |
3710 | static zebra_vni_t *zvni_lookup(vni_t vni) | |
3711 | { | |
3712 | struct zebra_vrf *zvrf; | |
3713 | zebra_vni_t tmp_vni; | |
3714 | zebra_vni_t *zvni = NULL; | |
3715 | ||
3716 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
3717 | assert(zvrf); | |
3718 | memset(&tmp_vni, 0, sizeof(zebra_vni_t)); | |
3719 | tmp_vni.vni = vni; | |
3720 | zvni = hash_lookup(zvrf->vni_table, &tmp_vni); | |
3721 | ||
3722 | return zvni; | |
3723 | } | |
3724 | ||
3725 | /* | |
3726 | * Add VNI hash entry. | |
3727 | */ | |
3728 | static zebra_vni_t *zvni_add(vni_t vni) | |
3729 | { | |
3730 | struct zebra_vrf *zvrf; | |
3731 | zebra_vni_t tmp_zvni; | |
3732 | zebra_vni_t *zvni = NULL; | |
3733 | ||
3734 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
3735 | assert(zvrf); | |
3736 | memset(&tmp_zvni, 0, sizeof(zebra_vni_t)); | |
3737 | tmp_zvni.vni = vni; | |
3738 | zvni = hash_get(zvrf->vni_table, &tmp_zvni, zvni_alloc); | |
3739 | assert(zvni); | |
3740 | ||
3741 | /* Create hash table for MAC */ | |
3742 | zvni->mac_table = | |
3743 | hash_create(mac_hash_keymake, mac_cmp, "Zebra VNI MAC Table"); | |
3744 | ||
3745 | /* Create hash table for neighbors */ | |
3746 | zvni->neigh_table = hash_create(neigh_hash_keymake, neigh_cmp, | |
3747 | "Zebra VNI Neighbor Table"); | |
3748 | ||
3749 | return zvni; | |
3750 | } | |
3751 | ||
3752 | /* | |
3753 | * Delete VNI hash entry. | |
3754 | */ | |
3755 | static int zvni_del(zebra_vni_t *zvni) | |
3756 | { | |
3757 | struct zebra_vrf *zvrf; | |
3758 | zebra_vni_t *tmp_zvni; | |
3759 | ||
3760 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
3761 | assert(zvrf); | |
3762 | ||
3763 | zvni->vxlan_if = NULL; | |
3764 | ||
3765 | /* Free the neighbor hash table. */ | |
3766 | hash_free(zvni->neigh_table); | |
3767 | zvni->neigh_table = NULL; | |
3768 | ||
3769 | /* Free the MAC hash table. */ | |
3770 | hash_free(zvni->mac_table); | |
3771 | zvni->mac_table = NULL; | |
3772 | ||
3773 | /* Free the VNI hash entry and allocated memory. */ | |
3774 | tmp_zvni = hash_release(zvrf->vni_table, zvni); | |
3775 | if (tmp_zvni) | |
3776 | XFREE(MTYPE_ZVNI, tmp_zvni); | |
3777 | ||
3778 | return 0; | |
3779 | } | |
3780 | ||
3781 | /* | |
3782 | * Inform BGP about local VNI addition. | |
3783 | */ | |
3784 | static int zvni_send_add_to_client(zebra_vni_t *zvni) | |
3785 | { | |
3786 | struct zserv *client; | |
3787 | struct stream *s; | |
3788 | ||
3789 | client = zserv_find_client(ZEBRA_ROUTE_BGP, 0); | |
3790 | /* BGP may not be running. */ | |
3791 | if (!client) | |
3792 | return 0; | |
3793 | ||
3794 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
3795 | ||
3796 | zclient_create_header(s, ZEBRA_VNI_ADD, VRF_DEFAULT); | |
3797 | stream_putl(s, zvni->vni); | |
3798 | stream_put_in_addr(s, &zvni->local_vtep_ip); | |
3799 | stream_put(s, &zvni->vrf_id, sizeof(vrf_id_t)); /* tenant vrf */ | |
3800 | ||
3801 | /* Write packet size. */ | |
3802 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3803 | ||
3804 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3805 | zlog_debug("Send VNI_ADD %u %s tenant vrf %s to %s", zvni->vni, | |
3806 | inet_ntoa(zvni->local_vtep_ip), | |
3807 | vrf_id_to_name(zvni->vrf_id), | |
3808 | zebra_route_string(client->proto)); | |
3809 | ||
3810 | client->vniadd_cnt++; | |
3811 | return zserv_send_message(client, s); | |
3812 | } | |
3813 | ||
3814 | /* | |
3815 | * Inform BGP about local VNI deletion. | |
3816 | */ | |
3817 | static int zvni_send_del_to_client(vni_t vni) | |
3818 | { | |
3819 | struct zserv *client; | |
3820 | struct stream *s; | |
3821 | ||
3822 | client = zserv_find_client(ZEBRA_ROUTE_BGP, 0); | |
3823 | /* BGP may not be running. */ | |
3824 | if (!client) | |
3825 | return 0; | |
3826 | ||
3827 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
3828 | stream_reset(s); | |
3829 | ||
3830 | zclient_create_header(s, ZEBRA_VNI_DEL, VRF_DEFAULT); | |
3831 | stream_putl(s, vni); | |
3832 | ||
3833 | /* Write packet size. */ | |
3834 | stream_putw_at(s, 0, stream_get_endp(s)); | |
3835 | ||
3836 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3837 | zlog_debug("Send VNI_DEL %u to %s", vni, | |
3838 | zebra_route_string(client->proto)); | |
3839 | ||
3840 | client->vnidel_cnt++; | |
3841 | return zserv_send_message(client, s); | |
3842 | } | |
3843 | ||
3844 | /* | |
3845 | * Build the VNI hash table by going over the VxLAN interfaces. This | |
3846 | * is called when EVPN (advertise-all-vni) is enabled. | |
3847 | */ | |
3848 | static void zvni_build_hash_table() | |
3849 | { | |
3850 | struct zebra_ns *zns; | |
3851 | struct route_node *rn; | |
3852 | struct interface *ifp; | |
3853 | ||
3854 | /* Walk VxLAN interfaces and create VNI hash. */ | |
3855 | zns = zebra_ns_lookup(NS_DEFAULT); | |
3856 | for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) { | |
3857 | vni_t vni; | |
3858 | zebra_vni_t *zvni = NULL; | |
3859 | zebra_l3vni_t *zl3vni = NULL; | |
3860 | struct zebra_if *zif; | |
3861 | struct zebra_l2info_vxlan *vxl; | |
3862 | ||
3863 | ifp = (struct interface *)rn->info; | |
3864 | if (!ifp) | |
3865 | continue; | |
3866 | zif = ifp->info; | |
3867 | if (!zif || zif->zif_type != ZEBRA_IF_VXLAN) | |
3868 | continue; | |
3869 | ||
3870 | vxl = &zif->l2info.vxl; | |
3871 | vni = vxl->vni; | |
3872 | ||
3873 | /* L3-VNI and L2-VNI are handled seperately */ | |
3874 | zl3vni = zl3vni_lookup(vni); | |
3875 | if (zl3vni) { | |
3876 | ||
3877 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3878 | zlog_debug( | |
3879 | "create L3-VNI hash for Intf %s(%u) L3-VNI %u", | |
3880 | ifp->name, ifp->ifindex, vni); | |
3881 | ||
3882 | /* associate with vxlan_if */ | |
3883 | zl3vni->local_vtep_ip = vxl->vtep_ip; | |
3884 | zl3vni->vxlan_if = ifp; | |
3885 | ||
3886 | /* | |
3887 | * we need to associate with SVI. | |
3888 | * we can associate with svi-if only after association | |
3889 | * with vxlan-intf is complete | |
3890 | */ | |
3891 | zl3vni->svi_if = zl3vni_map_to_svi_if(zl3vni); | |
3892 | ||
3893 | if (is_l3vni_oper_up(zl3vni)) | |
3894 | zebra_vxlan_process_l3vni_oper_up(zl3vni); | |
3895 | ||
3896 | } else { | |
3897 | struct interface *vlan_if = NULL; | |
3898 | ||
3899 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3900 | zlog_debug( | |
3901 | "Create L2-VNI hash for intf %s(%u) L2-VNI %u local IP %s", | |
3902 | ifp->name, ifp->ifindex, vni, | |
3903 | inet_ntoa(vxl->vtep_ip)); | |
3904 | ||
3905 | /* VNI hash entry is not expected to exist. */ | |
3906 | zvni = zvni_lookup(vni); | |
3907 | if (zvni) { | |
3908 | zlog_debug( | |
3909 | "VNI hash already present for IF %s(%u) L2-VNI %u", | |
3910 | ifp->name, ifp->ifindex, vni); | |
3911 | continue; | |
3912 | } | |
3913 | ||
3914 | zvni = zvni_add(vni); | |
3915 | if (!zvni) { | |
3916 | zlog_debug( | |
3917 | "Failed to add VNI hash, IF %s(%u) L2-VNI %u", | |
3918 | ifp->name, ifp->ifindex, vni); | |
3919 | return; | |
3920 | } | |
3921 | ||
3922 | zvni->local_vtep_ip = vxl->vtep_ip; | |
3923 | zvni->vxlan_if = ifp; | |
3924 | vlan_if = zvni_map_to_svi(vxl->access_vlan, | |
3925 | zif->brslave_info.br_if); | |
3926 | if (vlan_if) { | |
3927 | zvni->vrf_id = vlan_if->vrf_id; | |
3928 | zl3vni = zl3vni_from_vrf(vlan_if->vrf_id); | |
3929 | if (zl3vni) | |
3930 | listnode_add_sort(zl3vni->l2vnis, zvni); | |
3931 | } | |
3932 | ||
3933 | ||
3934 | /* Inform BGP if intf is up and mapped to bridge. */ | |
3935 | if (if_is_operative(ifp) && zif->brslave_info.br_if) | |
3936 | zvni_send_add_to_client(zvni); | |
3937 | } | |
3938 | } | |
3939 | } | |
3940 | ||
3941 | /* | |
3942 | * See if remote VTEP matches with prefix. | |
3943 | */ | |
3944 | static int zvni_vtep_match(struct in_addr *vtep_ip, zebra_vtep_t *zvtep) | |
3945 | { | |
3946 | return (IPV4_ADDR_SAME(vtep_ip, &zvtep->vtep_ip)); | |
3947 | } | |
3948 | ||
3949 | /* | |
3950 | * Locate remote VTEP in VNI hash table. | |
3951 | */ | |
3952 | static zebra_vtep_t *zvni_vtep_find(zebra_vni_t *zvni, struct in_addr *vtep_ip) | |
3953 | { | |
3954 | zebra_vtep_t *zvtep; | |
3955 | ||
3956 | if (!zvni) | |
3957 | return NULL; | |
3958 | ||
3959 | for (zvtep = zvni->vteps; zvtep; zvtep = zvtep->next) { | |
3960 | if (zvni_vtep_match(vtep_ip, zvtep)) | |
3961 | break; | |
3962 | } | |
3963 | ||
3964 | return zvtep; | |
3965 | } | |
3966 | ||
3967 | /* | |
3968 | * Add remote VTEP to VNI hash table. | |
3969 | */ | |
3970 | static zebra_vtep_t *zvni_vtep_add(zebra_vni_t *zvni, struct in_addr *vtep_ip) | |
3971 | { | |
3972 | zebra_vtep_t *zvtep; | |
3973 | ||
3974 | zvtep = XCALLOC(MTYPE_ZVNI_VTEP, sizeof(zebra_vtep_t)); | |
3975 | ||
3976 | zvtep->vtep_ip = *vtep_ip; | |
3977 | ||
3978 | if (zvni->vteps) | |
3979 | zvni->vteps->prev = zvtep; | |
3980 | zvtep->next = zvni->vteps; | |
3981 | zvni->vteps = zvtep; | |
3982 | ||
3983 | return zvtep; | |
3984 | } | |
3985 | ||
3986 | /* | |
3987 | * Remove remote VTEP from VNI hash table. | |
3988 | */ | |
3989 | static int zvni_vtep_del(zebra_vni_t *zvni, zebra_vtep_t *zvtep) | |
3990 | { | |
3991 | if (zvtep->next) | |
3992 | zvtep->next->prev = zvtep->prev; | |
3993 | if (zvtep->prev) | |
3994 | zvtep->prev->next = zvtep->next; | |
3995 | else | |
3996 | zvni->vteps = zvtep->next; | |
3997 | ||
3998 | zvtep->prev = zvtep->next = NULL; | |
3999 | XFREE(MTYPE_ZVNI_VTEP, zvtep); | |
4000 | ||
4001 | return 0; | |
4002 | } | |
4003 | ||
4004 | /* | |
4005 | * Delete all remote VTEPs for this VNI (upon VNI delete). Also | |
4006 | * uninstall from kernel if asked to. | |
4007 | */ | |
4008 | static int zvni_vtep_del_all(zebra_vni_t *zvni, int uninstall) | |
4009 | { | |
4010 | zebra_vtep_t *zvtep, *zvtep_next; | |
4011 | ||
4012 | if (!zvni) | |
4013 | return -1; | |
4014 | ||
4015 | for (zvtep = zvni->vteps; zvtep; zvtep = zvtep_next) { | |
4016 | zvtep_next = zvtep->next; | |
4017 | if (uninstall) | |
4018 | zvni_vtep_uninstall(zvni, &zvtep->vtep_ip); | |
4019 | zvni_vtep_del(zvni, zvtep); | |
4020 | } | |
4021 | ||
4022 | return 0; | |
4023 | } | |
4024 | ||
4025 | /* | |
4026 | * Install remote VTEP into the kernel. | |
4027 | */ | |
4028 | static int zvni_vtep_install(zebra_vni_t *zvni, struct in_addr *vtep_ip) | |
4029 | { | |
4030 | if (is_vxlan_flooding_head_end()) | |
4031 | return kernel_add_vtep(zvni->vni, zvni->vxlan_if, vtep_ip); | |
4032 | return 0; | |
4033 | } | |
4034 | ||
4035 | /* | |
4036 | * Uninstall remote VTEP from the kernel. | |
4037 | */ | |
4038 | static int zvni_vtep_uninstall(zebra_vni_t *zvni, struct in_addr *vtep_ip) | |
4039 | { | |
4040 | if (!zvni->vxlan_if) { | |
4041 | zlog_debug("VNI %u hash %p couldn't be uninstalled - no intf", | |
4042 | zvni->vni, zvni); | |
4043 | return -1; | |
4044 | } | |
4045 | ||
4046 | return kernel_del_vtep(zvni->vni, zvni->vxlan_if, vtep_ip); | |
4047 | } | |
4048 | ||
4049 | /* | |
4050 | * Install or uninstall flood entries in the kernel corresponding to | |
4051 | * remote VTEPs. This is invoked upon change to BUM handling. | |
4052 | */ | |
4053 | static void zvni_handle_flooding_remote_vteps(struct hash_backet *backet, | |
4054 | void *zvrf) | |
4055 | { | |
4056 | zebra_vni_t *zvni; | |
4057 | zebra_vtep_t *zvtep; | |
4058 | ||
4059 | zvni = (zebra_vni_t *)backet->data; | |
4060 | if (!zvni) | |
4061 | return; | |
4062 | ||
4063 | for (zvtep = zvni->vteps; zvtep; zvtep = zvtep->next) { | |
4064 | if (is_vxlan_flooding_head_end()) | |
4065 | zvni_vtep_install(zvni, &zvtep->vtep_ip); | |
4066 | else | |
4067 | zvni_vtep_uninstall(zvni, &zvtep->vtep_ip); | |
4068 | } | |
4069 | } | |
4070 | ||
4071 | /* | |
4072 | * Cleanup VNI/VTEP and update kernel | |
4073 | */ | |
4074 | static void zvni_cleanup_all(struct hash_backet *backet, void *arg) | |
4075 | { | |
4076 | zebra_vni_t *zvni = NULL; | |
4077 | zebra_l3vni_t *zl3vni = NULL; | |
4078 | struct zebra_vrf *zvrf = (struct zebra_vrf *)arg; | |
4079 | ||
4080 | zvni = (zebra_vni_t *)backet->data; | |
4081 | ||
4082 | /* remove from l3-vni list */ | |
4083 | if (zvrf->l3vni) | |
4084 | zl3vni = zl3vni_lookup(zvrf->l3vni); | |
4085 | if (zl3vni) | |
4086 | listnode_delete(zl3vni->l2vnis, zvni); | |
4087 | ||
4088 | /* Free up all neighbors and MACs, if any. */ | |
4089 | zvni_neigh_del_all(zvni, 1, 0, DEL_ALL_NEIGH); | |
4090 | zvni_mac_del_all(zvni, 1, 0, DEL_ALL_MAC); | |
4091 | ||
4092 | /* Free up all remote VTEPs, if any. */ | |
4093 | zvni_vtep_del_all(zvni, 1); | |
4094 | ||
4095 | /* Delete the hash entry. */ | |
4096 | zvni_del(zvni); | |
4097 | } | |
4098 | ||
4099 | /* cleanup L3VNI */ | |
4100 | static void zl3vni_cleanup_all(struct hash_backet *backet, void *args) | |
4101 | { | |
4102 | zebra_l3vni_t *zl3vni = NULL; | |
4103 | ||
4104 | zl3vni = (zebra_l3vni_t *)backet->data; | |
4105 | ||
4106 | zebra_vxlan_process_l3vni_oper_down(zl3vni); | |
4107 | } | |
4108 | ||
4109 | static void rb_find_or_add_host(struct host_rb_tree_entry *hrbe, | |
4110 | struct prefix *host) | |
4111 | { | |
4112 | struct host_rb_entry lookup; | |
4113 | struct host_rb_entry *hle; | |
4114 | ||
4115 | memset(&lookup, 0, sizeof(lookup)); | |
4116 | memcpy(&lookup.p, host, sizeof(*host)); | |
4117 | ||
4118 | hle = RB_FIND(host_rb_tree_entry, hrbe, &lookup); | |
4119 | if (hle) | |
4120 | return; | |
4121 | ||
4122 | hle = XCALLOC(MTYPE_HOST_PREFIX, sizeof(struct host_rb_entry)); | |
4123 | memcpy(hle, &lookup, sizeof(lookup)); | |
4124 | ||
4125 | RB_INSERT(host_rb_tree_entry, hrbe, hle); | |
4126 | } | |
4127 | ||
4128 | static void rb_delete_host(struct host_rb_tree_entry *hrbe, struct prefix *host) | |
4129 | { | |
4130 | struct host_rb_entry lookup; | |
4131 | struct host_rb_entry *hle; | |
4132 | ||
4133 | memset(&lookup, 0, sizeof(lookup)); | |
4134 | memcpy(&lookup.p, host, sizeof(*host)); | |
4135 | ||
4136 | hle = RB_FIND(host_rb_tree_entry, hrbe, &lookup); | |
4137 | if (hle) { | |
4138 | RB_REMOVE(host_rb_tree_entry, hrbe, hle); | |
4139 | XFREE(MTYPE_HOST_PREFIX, hle); | |
4140 | } | |
4141 | ||
4142 | return; | |
4143 | } | |
4144 | ||
4145 | /* | |
4146 | * Look up MAC hash entry. | |
4147 | */ | |
4148 | static zebra_mac_t *zl3vni_rmac_lookup(zebra_l3vni_t *zl3vni, | |
4149 | struct ethaddr *rmac) | |
4150 | { | |
4151 | zebra_mac_t tmp; | |
4152 | zebra_mac_t *pmac; | |
4153 | ||
4154 | memset(&tmp, 0, sizeof(tmp)); | |
4155 | memcpy(&tmp.macaddr, rmac, ETH_ALEN); | |
4156 | pmac = hash_lookup(zl3vni->rmac_table, &tmp); | |
4157 | ||
4158 | return pmac; | |
4159 | } | |
4160 | ||
4161 | /* | |
4162 | * Callback to allocate RMAC hash entry. | |
4163 | */ | |
4164 | static void *zl3vni_rmac_alloc(void *p) | |
4165 | { | |
4166 | const zebra_mac_t *tmp_rmac = p; | |
4167 | zebra_mac_t *zrmac; | |
4168 | ||
4169 | zrmac = XCALLOC(MTYPE_MAC, sizeof(zebra_mac_t)); | |
4170 | *zrmac = *tmp_rmac; | |
4171 | ||
4172 | return ((void *)zrmac); | |
4173 | } | |
4174 | ||
4175 | /* | |
4176 | * Add RMAC entry to l3-vni | |
4177 | */ | |
4178 | static zebra_mac_t *zl3vni_rmac_add(zebra_l3vni_t *zl3vni, struct ethaddr *rmac) | |
4179 | { | |
4180 | zebra_mac_t tmp_rmac; | |
4181 | zebra_mac_t *zrmac = NULL; | |
4182 | ||
4183 | memset(&tmp_rmac, 0, sizeof(zebra_mac_t)); | |
4184 | memcpy(&tmp_rmac.macaddr, rmac, ETH_ALEN); | |
4185 | zrmac = hash_get(zl3vni->rmac_table, &tmp_rmac, zl3vni_rmac_alloc); | |
4186 | assert(zrmac); | |
4187 | ||
4188 | RB_INIT(host_rb_tree_entry, &zrmac->host_rb); | |
4189 | ||
4190 | SET_FLAG(zrmac->flags, ZEBRA_MAC_REMOTE); | |
4191 | SET_FLAG(zrmac->flags, ZEBRA_MAC_REMOTE_RMAC); | |
4192 | ||
4193 | return zrmac; | |
4194 | } | |
4195 | ||
4196 | /* | |
4197 | * Delete MAC entry. | |
4198 | */ | |
4199 | static int zl3vni_rmac_del(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac) | |
4200 | { | |
4201 | zebra_mac_t *tmp_rmac; | |
4202 | struct host_rb_entry *hle; | |
4203 | ||
4204 | while (!RB_EMPTY(host_rb_tree_entry, &zrmac->host_rb)) { | |
4205 | hle = RB_ROOT(host_rb_tree_entry, &zrmac->host_rb); | |
4206 | ||
4207 | RB_REMOVE(host_rb_tree_entry, &zrmac->host_rb, hle); | |
4208 | XFREE(MTYPE_HOST_PREFIX, hle); | |
4209 | } | |
4210 | ||
4211 | tmp_rmac = hash_release(zl3vni->rmac_table, zrmac); | |
4212 | if (tmp_rmac) | |
4213 | XFREE(MTYPE_MAC, tmp_rmac); | |
4214 | ||
4215 | return 0; | |
4216 | } | |
4217 | ||
4218 | /* | |
4219 | * Install remote RMAC into the kernel. | |
4220 | */ | |
4221 | static int zl3vni_rmac_install(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac) | |
4222 | { | |
4223 | struct zebra_if *zif = NULL; | |
4224 | struct zebra_l2info_vxlan *vxl = NULL; | |
4225 | ||
4226 | if (!(CHECK_FLAG(zrmac->flags, ZEBRA_MAC_REMOTE)) | |
4227 | || !(CHECK_FLAG(zrmac->flags, ZEBRA_MAC_REMOTE_RMAC))) | |
4228 | return 0; | |
4229 | ||
4230 | zif = zl3vni->vxlan_if->info; | |
4231 | if (!zif) | |
4232 | return -1; | |
4233 | ||
4234 | vxl = &zif->l2info.vxl; | |
4235 | ||
4236 | return kernel_add_mac(zl3vni->vxlan_if, vxl->access_vlan, | |
4237 | &zrmac->macaddr, zrmac->fwd_info.r_vtep_ip, 0); | |
4238 | } | |
4239 | ||
4240 | /* | |
4241 | * Uninstall remote RMAC from the kernel. | |
4242 | */ | |
4243 | static int zl3vni_rmac_uninstall(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac) | |
4244 | { | |
4245 | char buf[ETHER_ADDR_STRLEN]; | |
4246 | struct zebra_if *zif = NULL; | |
4247 | struct zebra_l2info_vxlan *vxl = NULL; | |
4248 | ||
4249 | if (!(CHECK_FLAG(zrmac->flags, ZEBRA_MAC_REMOTE)) | |
4250 | || !(CHECK_FLAG(zrmac->flags, ZEBRA_MAC_REMOTE_RMAC))) | |
4251 | return 0; | |
4252 | ||
4253 | if (!zl3vni->vxlan_if) { | |
4254 | zlog_debug( | |
4255 | "RMAC %s on L3-VNI %u hash %p couldn't be uninstalled - no vxlan_if", | |
4256 | prefix_mac2str(&zrmac->macaddr, buf, sizeof(buf)), | |
4257 | zl3vni->vni, zl3vni); | |
4258 | return -1; | |
4259 | } | |
4260 | ||
4261 | zif = zl3vni->vxlan_if->info; | |
4262 | if (!zif) | |
4263 | return -1; | |
4264 | ||
4265 | vxl = &zif->l2info.vxl; | |
4266 | ||
4267 | return kernel_del_mac(zl3vni->vxlan_if, vxl->access_vlan, | |
4268 | &zrmac->macaddr, zrmac->fwd_info.r_vtep_ip); | |
4269 | } | |
4270 | ||
4271 | /* handle rmac add */ | |
4272 | static int zl3vni_remote_rmac_add(zebra_l3vni_t *zl3vni, struct ethaddr *rmac, | |
4273 | struct ipaddr *vtep_ip, | |
4274 | struct prefix *host_prefix) | |
4275 | { | |
4276 | char buf[ETHER_ADDR_STRLEN]; | |
4277 | char buf1[INET6_ADDRSTRLEN]; | |
4278 | zebra_mac_t *zrmac = NULL; | |
4279 | ||
4280 | zrmac = zl3vni_rmac_lookup(zl3vni, rmac); | |
4281 | if (!zrmac) { | |
4282 | ||
4283 | zrmac = zl3vni_rmac_add(zl3vni, rmac); | |
4284 | if (!zrmac) { | |
4285 | zlog_debug( | |
4286 | "Failed to add RMAC %s L3VNI %u Remote VTEP %s", | |
4287 | prefix_mac2str(rmac, buf, sizeof(buf)), | |
4288 | zl3vni->vni, | |
4289 | ipaddr2str(vtep_ip, buf1, sizeof(buf1))); | |
4290 | return -1; | |
4291 | } | |
4292 | memset(&zrmac->fwd_info, 0, sizeof(zrmac->fwd_info)); | |
4293 | zrmac->fwd_info.r_vtep_ip = vtep_ip->ipaddr_v4; | |
4294 | ||
4295 | /* install rmac in kernel */ | |
4296 | zl3vni_rmac_install(zl3vni, zrmac); | |
4297 | } | |
4298 | ||
4299 | rb_find_or_add_host(&zrmac->host_rb, host_prefix); | |
4300 | ||
4301 | return 0; | |
4302 | } | |
4303 | ||
4304 | ||
4305 | /* handle rmac delete */ | |
4306 | static void zl3vni_remote_rmac_del(zebra_l3vni_t *zl3vni, zebra_mac_t *zrmac, | |
4307 | struct prefix *host_prefix) | |
4308 | { | |
4309 | rb_delete_host(&zrmac->host_rb, host_prefix); | |
4310 | ||
4311 | if (RB_EMPTY(host_rb_tree_entry, &zrmac->host_rb)) { | |
4312 | /* uninstall from kernel */ | |
4313 | zl3vni_rmac_uninstall(zl3vni, zrmac); | |
4314 | ||
4315 | /* del the rmac entry */ | |
4316 | zl3vni_rmac_del(zl3vni, zrmac); | |
4317 | } | |
4318 | } | |
4319 | ||
4320 | /* | |
4321 | * Look up nh hash entry on a l3-vni. | |
4322 | */ | |
4323 | static zebra_neigh_t *zl3vni_nh_lookup(zebra_l3vni_t *zl3vni, struct ipaddr *ip) | |
4324 | { | |
4325 | zebra_neigh_t tmp; | |
4326 | zebra_neigh_t *n; | |
4327 | ||
4328 | memset(&tmp, 0, sizeof(tmp)); | |
4329 | memcpy(&tmp.ip, ip, sizeof(struct ipaddr)); | |
4330 | n = hash_lookup(zl3vni->nh_table, &tmp); | |
4331 | ||
4332 | return n; | |
4333 | } | |
4334 | ||
4335 | ||
4336 | /* | |
4337 | * Callback to allocate NH hash entry on L3-VNI. | |
4338 | */ | |
4339 | static void *zl3vni_nh_alloc(void *p) | |
4340 | { | |
4341 | const zebra_neigh_t *tmp_n = p; | |
4342 | zebra_neigh_t *n; | |
4343 | ||
4344 | n = XCALLOC(MTYPE_NEIGH, sizeof(zebra_neigh_t)); | |
4345 | *n = *tmp_n; | |
4346 | ||
4347 | return ((void *)n); | |
4348 | } | |
4349 | ||
4350 | /* | |
4351 | * Add neighbor entry. | |
4352 | */ | |
4353 | static zebra_neigh_t *zl3vni_nh_add(zebra_l3vni_t *zl3vni, struct ipaddr *ip, | |
4354 | struct ethaddr *mac) | |
4355 | { | |
4356 | zebra_neigh_t tmp_n; | |
4357 | zebra_neigh_t *n = NULL; | |
4358 | ||
4359 | memset(&tmp_n, 0, sizeof(zebra_neigh_t)); | |
4360 | memcpy(&tmp_n.ip, ip, sizeof(struct ipaddr)); | |
4361 | n = hash_get(zl3vni->nh_table, &tmp_n, zl3vni_nh_alloc); | |
4362 | assert(n); | |
4363 | ||
4364 | RB_INIT(host_rb_tree_entry, &n->host_rb); | |
4365 | ||
4366 | memcpy(&n->emac, mac, ETH_ALEN); | |
4367 | SET_FLAG(n->flags, ZEBRA_NEIGH_REMOTE); | |
4368 | SET_FLAG(n->flags, ZEBRA_NEIGH_REMOTE_NH); | |
4369 | ||
4370 | return n; | |
4371 | } | |
4372 | ||
4373 | /* | |
4374 | * Delete neighbor entry. | |
4375 | */ | |
4376 | static int zl3vni_nh_del(zebra_l3vni_t *zl3vni, zebra_neigh_t *n) | |
4377 | { | |
4378 | zebra_neigh_t *tmp_n; | |
4379 | struct host_rb_entry *hle; | |
4380 | ||
4381 | while (!RB_EMPTY(host_rb_tree_entry, &n->host_rb)) { | |
4382 | hle = RB_ROOT(host_rb_tree_entry, &n->host_rb); | |
4383 | ||
4384 | RB_REMOVE(host_rb_tree_entry, &n->host_rb, hle); | |
4385 | XFREE(MTYPE_HOST_PREFIX, hle); | |
4386 | } | |
4387 | ||
4388 | tmp_n = hash_release(zl3vni->nh_table, n); | |
4389 | if (tmp_n) | |
4390 | XFREE(MTYPE_NEIGH, tmp_n); | |
4391 | ||
4392 | return 0; | |
4393 | } | |
4394 | ||
4395 | /* | |
4396 | * Install remote nh as neigh into the kernel. | |
4397 | */ | |
4398 | static int zl3vni_nh_install(zebra_l3vni_t *zl3vni, zebra_neigh_t *n) | |
4399 | { | |
4400 | #ifdef GNU_LINUX | |
4401 | uint8_t flags; | |
4402 | #endif | |
4403 | int ret = 0; | |
4404 | ||
4405 | if (!is_l3vni_oper_up(zl3vni)) | |
4406 | return -1; | |
4407 | ||
4408 | if (!(n->flags & ZEBRA_NEIGH_REMOTE) | |
4409 | || !(n->flags & ZEBRA_NEIGH_REMOTE_NH)) | |
4410 | return 0; | |
4411 | #ifdef GNU_LINUX | |
4412 | flags = NTF_EXT_LEARNED; | |
4413 | if (n->flags & ZEBRA_NEIGH_ROUTER_FLAG) | |
4414 | flags |= NTF_ROUTER; | |
4415 | ret = kernel_add_neigh(zl3vni->svi_if, &n->ip, &n->emac, flags); | |
4416 | #endif | |
4417 | return ret; | |
4418 | } | |
4419 | ||
4420 | /* | |
4421 | * Uninstall remote nh from the kernel. | |
4422 | */ | |
4423 | static int zl3vni_nh_uninstall(zebra_l3vni_t *zl3vni, zebra_neigh_t *n) | |
4424 | { | |
4425 | if (!(n->flags & ZEBRA_NEIGH_REMOTE) | |
4426 | || !(n->flags & ZEBRA_NEIGH_REMOTE_NH)) | |
4427 | return 0; | |
4428 | ||
4429 | if (!zl3vni->svi_if || !if_is_operative(zl3vni->svi_if)) | |
4430 | return 0; | |
4431 | ||
4432 | return kernel_del_neigh(zl3vni->svi_if, &n->ip); | |
4433 | } | |
4434 | ||
4435 | /* add remote vtep as a neigh entry */ | |
4436 | static int zl3vni_remote_nh_add(zebra_l3vni_t *zl3vni, struct ipaddr *vtep_ip, | |
4437 | struct ethaddr *rmac, | |
4438 | struct prefix *host_prefix) | |
4439 | { | |
4440 | char buf[ETHER_ADDR_STRLEN]; | |
4441 | char buf1[INET6_ADDRSTRLEN]; | |
4442 | zebra_neigh_t *nh = NULL; | |
4443 | ||
4444 | nh = zl3vni_nh_lookup(zl3vni, vtep_ip); | |
4445 | if (!nh) { | |
4446 | nh = zl3vni_nh_add(zl3vni, vtep_ip, rmac); | |
4447 | if (!nh) { | |
4448 | ||
4449 | zlog_debug( | |
4450 | "Failed to add NH as Neigh (IP %s MAC %s L3-VNI %u)", | |
4451 | ipaddr2str(vtep_ip, buf1, sizeof(buf1)), | |
4452 | prefix_mac2str(rmac, buf, sizeof(buf)), | |
4453 | zl3vni->vni); | |
4454 | return -1; | |
4455 | } | |
4456 | ||
4457 | /* install the nh neigh in kernel */ | |
4458 | zl3vni_nh_install(zl3vni, nh); | |
4459 | } | |
4460 | ||
4461 | rb_find_or_add_host(&nh->host_rb, host_prefix); | |
4462 | ||
4463 | return 0; | |
4464 | } | |
4465 | ||
4466 | /* handle nh neigh delete */ | |
4467 | static void zl3vni_remote_nh_del(zebra_l3vni_t *zl3vni, zebra_neigh_t *nh, | |
4468 | struct prefix *host_prefix) | |
4469 | { | |
4470 | rb_delete_host(&nh->host_rb, host_prefix); | |
4471 | ||
4472 | if (RB_EMPTY(host_rb_tree_entry, &nh->host_rb)) { | |
4473 | /* uninstall from kernel */ | |
4474 | zl3vni_nh_uninstall(zl3vni, nh); | |
4475 | ||
4476 | /* delete the nh entry */ | |
4477 | zl3vni_nh_del(zl3vni, nh); | |
4478 | } | |
4479 | } | |
4480 | ||
4481 | /* handle neigh update from kernel - the only thing of interest is to | |
4482 | * readd stale entries. | |
4483 | */ | |
4484 | static int zl3vni_local_nh_add_update(zebra_l3vni_t *zl3vni, struct ipaddr *ip, | |
4485 | uint16_t state) | |
4486 | { | |
4487 | #ifdef GNU_LINUX | |
4488 | zebra_neigh_t *n = NULL; | |
4489 | ||
4490 | n = zl3vni_nh_lookup(zl3vni, ip); | |
4491 | if (!n) | |
4492 | return 0; | |
4493 | ||
4494 | /* all next hop neigh are remote and installed by frr. | |
4495 | * If the kernel has aged this entry, re-install. | |
4496 | */ | |
4497 | if (state & NUD_STALE) | |
4498 | zl3vni_nh_install(zl3vni, n); | |
4499 | #endif | |
4500 | return 0; | |
4501 | } | |
4502 | ||
4503 | /* handle neigh delete from kernel */ | |
4504 | static int zl3vni_local_nh_del(zebra_l3vni_t *zl3vni, struct ipaddr *ip) | |
4505 | { | |
4506 | zebra_neigh_t *n = NULL; | |
4507 | ||
4508 | n = zl3vni_nh_lookup(zl3vni, ip); | |
4509 | if (!n) | |
4510 | return 0; | |
4511 | ||
4512 | /* all next hop neigh are remote and installed by frr. | |
4513 | * If we get an age out notification for these neigh entries, we have to | |
4514 | * install it back | |
4515 | */ | |
4516 | zl3vni_nh_install(zl3vni, n); | |
4517 | ||
4518 | return 0; | |
4519 | } | |
4520 | ||
4521 | /* | |
4522 | * Hash function for L3 VNI. | |
4523 | */ | |
4524 | static unsigned int l3vni_hash_keymake(void *p) | |
4525 | { | |
4526 | const zebra_l3vni_t *zl3vni = p; | |
4527 | ||
4528 | return jhash_1word(zl3vni->vni, 0); | |
4529 | } | |
4530 | ||
4531 | /* | |
4532 | * Compare 2 L3 VNI hash entries. | |
4533 | */ | |
4534 | static bool l3vni_hash_cmp(const void *p1, const void *p2) | |
4535 | { | |
4536 | const zebra_l3vni_t *zl3vni1 = p1; | |
4537 | const zebra_l3vni_t *zl3vni2 = p2; | |
4538 | ||
4539 | return (zl3vni1->vni == zl3vni2->vni); | |
4540 | } | |
4541 | ||
4542 | /* | |
4543 | * Callback to allocate L3 VNI hash entry. | |
4544 | */ | |
4545 | static void *zl3vni_alloc(void *p) | |
4546 | { | |
4547 | zebra_l3vni_t *zl3vni = NULL; | |
4548 | const zebra_l3vni_t *tmp_l3vni = p; | |
4549 | ||
4550 | zl3vni = XCALLOC(MTYPE_ZL3VNI, sizeof(zebra_l3vni_t)); | |
4551 | zl3vni->vni = tmp_l3vni->vni; | |
4552 | return ((void *)zl3vni); | |
4553 | } | |
4554 | ||
4555 | /* | |
4556 | * Look up L3 VNI hash entry. | |
4557 | */ | |
4558 | static zebra_l3vni_t *zl3vni_lookup(vni_t vni) | |
4559 | { | |
4560 | zebra_l3vni_t tmp_l3vni; | |
4561 | zebra_l3vni_t *zl3vni = NULL; | |
4562 | ||
4563 | memset(&tmp_l3vni, 0, sizeof(zebra_l3vni_t)); | |
4564 | tmp_l3vni.vni = vni; | |
4565 | zl3vni = hash_lookup(zrouter.l3vni_table, &tmp_l3vni); | |
4566 | ||
4567 | return zl3vni; | |
4568 | } | |
4569 | ||
4570 | /* | |
4571 | * Add L3 VNI hash entry. | |
4572 | */ | |
4573 | static zebra_l3vni_t *zl3vni_add(vni_t vni, vrf_id_t vrf_id) | |
4574 | { | |
4575 | zebra_l3vni_t tmp_zl3vni; | |
4576 | zebra_l3vni_t *zl3vni = NULL; | |
4577 | ||
4578 | memset(&tmp_zl3vni, 0, sizeof(zebra_l3vni_t)); | |
4579 | tmp_zl3vni.vni = vni; | |
4580 | ||
4581 | zl3vni = hash_get(zrouter.l3vni_table, &tmp_zl3vni, zl3vni_alloc); | |
4582 | assert(zl3vni); | |
4583 | ||
4584 | zl3vni->vrf_id = vrf_id; | |
4585 | zl3vni->svi_if = NULL; | |
4586 | zl3vni->vxlan_if = NULL; | |
4587 | zl3vni->l2vnis = list_new(); | |
4588 | zl3vni->l2vnis->cmp = vni_list_cmp; | |
4589 | ||
4590 | /* Create hash table for remote RMAC */ | |
4591 | zl3vni->rmac_table = hash_create(mac_hash_keymake, mac_cmp, | |
4592 | "Zebra L3-VNI RMAC-Table"); | |
4593 | ||
4594 | /* Create hash table for neighbors */ | |
4595 | zl3vni->nh_table = hash_create(neigh_hash_keymake, neigh_cmp, | |
4596 | "Zebra L3-VNI next-hop table"); | |
4597 | ||
4598 | return zl3vni; | |
4599 | } | |
4600 | ||
4601 | /* | |
4602 | * Delete L3 VNI hash entry. | |
4603 | */ | |
4604 | static int zl3vni_del(zebra_l3vni_t *zl3vni) | |
4605 | { | |
4606 | zebra_l3vni_t *tmp_zl3vni; | |
4607 | ||
4608 | /* free the list of l2vnis */ | |
4609 | list_delete(&zl3vni->l2vnis); | |
4610 | zl3vni->l2vnis = NULL; | |
4611 | ||
4612 | /* Free the rmac table */ | |
4613 | hash_free(zl3vni->rmac_table); | |
4614 | zl3vni->rmac_table = NULL; | |
4615 | ||
4616 | /* Free the nh table */ | |
4617 | hash_free(zl3vni->nh_table); | |
4618 | zl3vni->nh_table = NULL; | |
4619 | ||
4620 | /* Free the VNI hash entry and allocated memory. */ | |
4621 | tmp_zl3vni = hash_release(zrouter.l3vni_table, zl3vni); | |
4622 | if (tmp_zl3vni) | |
4623 | XFREE(MTYPE_ZL3VNI, tmp_zl3vni); | |
4624 | ||
4625 | return 0; | |
4626 | } | |
4627 | ||
4628 | static struct interface *zl3vni_map_to_vxlan_if(zebra_l3vni_t *zl3vni) | |
4629 | { | |
4630 | struct zebra_ns *zns = NULL; | |
4631 | struct route_node *rn = NULL; | |
4632 | struct interface *ifp = NULL; | |
4633 | ||
4634 | /* loop through all vxlan-interface */ | |
4635 | zns = zebra_ns_lookup(NS_DEFAULT); | |
4636 | for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) { | |
4637 | ||
4638 | struct zebra_if *zif = NULL; | |
4639 | struct zebra_l2info_vxlan *vxl = NULL; | |
4640 | ||
4641 | ifp = (struct interface *)rn->info; | |
4642 | if (!ifp) | |
4643 | continue; | |
4644 | ||
4645 | zif = ifp->info; | |
4646 | if (!zif || zif->zif_type != ZEBRA_IF_VXLAN) | |
4647 | continue; | |
4648 | ||
4649 | vxl = &zif->l2info.vxl; | |
4650 | if (vxl->vni == zl3vni->vni) { | |
4651 | zl3vni->local_vtep_ip = vxl->vtep_ip; | |
4652 | return ifp; | |
4653 | } | |
4654 | } | |
4655 | ||
4656 | return NULL; | |
4657 | } | |
4658 | ||
4659 | static struct interface *zl3vni_map_to_svi_if(zebra_l3vni_t *zl3vni) | |
4660 | { | |
4661 | struct zebra_if *zif = NULL; /* zebra_if for vxlan_if */ | |
4662 | struct zebra_l2info_vxlan *vxl = NULL; /* l2 info for vxlan_if */ | |
4663 | ||
4664 | if (!zl3vni) | |
4665 | return NULL; | |
4666 | ||
4667 | if (!zl3vni->vxlan_if) | |
4668 | return NULL; | |
4669 | ||
4670 | zif = zl3vni->vxlan_if->info; | |
4671 | if (!zif) | |
4672 | return NULL; | |
4673 | ||
4674 | vxl = &zif->l2info.vxl; | |
4675 | ||
4676 | return zvni_map_to_svi(vxl->access_vlan, zif->brslave_info.br_if); | |
4677 | } | |
4678 | ||
4679 | static zebra_l3vni_t *zl3vni_from_vrf(vrf_id_t vrf_id) | |
4680 | { | |
4681 | struct zebra_vrf *zvrf = NULL; | |
4682 | ||
4683 | zvrf = zebra_vrf_lookup_by_id(vrf_id); | |
4684 | if (!zvrf) | |
4685 | return NULL; | |
4686 | ||
4687 | return zl3vni_lookup(zvrf->l3vni); | |
4688 | } | |
4689 | ||
4690 | /* | |
4691 | * Map SVI and associated bridge to a VNI. This is invoked upon getting | |
4692 | * neighbor notifications, to see if they are of interest. | |
4693 | */ | |
4694 | static zebra_l3vni_t *zl3vni_from_svi(struct interface *ifp, | |
4695 | struct interface *br_if) | |
4696 | { | |
4697 | int found = 0; | |
4698 | vlanid_t vid = 0; | |
4699 | uint8_t bridge_vlan_aware = 0; | |
4700 | zebra_l3vni_t *zl3vni = NULL; | |
4701 | struct zebra_ns *zns = NULL; | |
4702 | struct route_node *rn = NULL; | |
4703 | struct zebra_if *zif = NULL; | |
4704 | struct interface *tmp_if = NULL; | |
4705 | struct zebra_l2info_bridge *br = NULL; | |
4706 | struct zebra_l2info_vxlan *vxl = NULL; | |
4707 | ||
4708 | if (!br_if) | |
4709 | return NULL; | |
4710 | ||
4711 | /* Make sure the linked interface is a bridge. */ | |
4712 | if (!IS_ZEBRA_IF_BRIDGE(br_if)) | |
4713 | return NULL; | |
4714 | ||
4715 | /* Determine if bridge is VLAN-aware or not */ | |
4716 | zif = br_if->info; | |
4717 | assert(zif); | |
4718 | br = &zif->l2info.br; | |
4719 | bridge_vlan_aware = br->vlan_aware; | |
4720 | if (bridge_vlan_aware) { | |
4721 | struct zebra_l2info_vlan *vl; | |
4722 | ||
4723 | if (!IS_ZEBRA_IF_VLAN(ifp)) | |
4724 | return NULL; | |
4725 | ||
4726 | zif = ifp->info; | |
4727 | assert(zif); | |
4728 | vl = &zif->l2info.vl; | |
4729 | vid = vl->vid; | |
4730 | } | |
4731 | ||
4732 | /* See if this interface (or interface plus VLAN Id) maps to a VxLAN */ | |
4733 | /* TODO: Optimize with a hash. */ | |
4734 | zns = zebra_ns_lookup(NS_DEFAULT); | |
4735 | for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) { | |
4736 | tmp_if = (struct interface *)rn->info; | |
4737 | if (!tmp_if) | |
4738 | continue; | |
4739 | zif = tmp_if->info; | |
4740 | if (!zif || zif->zif_type != ZEBRA_IF_VXLAN) | |
4741 | continue; | |
4742 | if (!if_is_operative(tmp_if)) | |
4743 | continue; | |
4744 | vxl = &zif->l2info.vxl; | |
4745 | ||
4746 | if (zif->brslave_info.br_if != br_if) | |
4747 | continue; | |
4748 | ||
4749 | if (!bridge_vlan_aware || vxl->access_vlan == vid) { | |
4750 | found = 1; | |
4751 | break; | |
4752 | } | |
4753 | } | |
4754 | ||
4755 | if (!found) | |
4756 | return NULL; | |
4757 | ||
4758 | zl3vni = zl3vni_lookup(vxl->vni); | |
4759 | return zl3vni; | |
4760 | } | |
4761 | ||
4762 | /* | |
4763 | * Inform BGP about l3-vni. | |
4764 | */ | |
4765 | static int zl3vni_send_add_to_client(zebra_l3vni_t *zl3vni) | |
4766 | { | |
4767 | struct stream *s = NULL; | |
4768 | struct zserv *client = NULL; | |
4769 | struct ethaddr rmac; | |
4770 | char buf[ETHER_ADDR_STRLEN]; | |
4771 | ||
4772 | client = zserv_find_client(ZEBRA_ROUTE_BGP, 0); | |
4773 | /* BGP may not be running. */ | |
4774 | if (!client) | |
4775 | return 0; | |
4776 | ||
4777 | /* get the rmac */ | |
4778 | memset(&rmac, 0, sizeof(struct ethaddr)); | |
4779 | zl3vni_get_rmac(zl3vni, &rmac); | |
4780 | ||
4781 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
4782 | ||
4783 | zclient_create_header(s, ZEBRA_L3VNI_ADD, zl3vni_vrf_id(zl3vni)); | |
4784 | stream_putl(s, zl3vni->vni); | |
4785 | stream_put(s, &rmac, sizeof(struct ethaddr)); | |
4786 | stream_put_in_addr(s, &zl3vni->local_vtep_ip); | |
4787 | stream_put(s, &zl3vni->filter, sizeof(int)); | |
4788 | ||
4789 | /* Write packet size. */ | |
4790 | stream_putw_at(s, 0, stream_get_endp(s)); | |
4791 | ||
4792 | if (IS_ZEBRA_DEBUG_VXLAN) | |
4793 | zlog_debug( | |
4794 | "Send L3_VNI_ADD %u VRF %s RMAC %s local-ip %s filter %s to %s", | |
4795 | zl3vni->vni, vrf_id_to_name(zl3vni_vrf_id(zl3vni)), | |
4796 | prefix_mac2str(&rmac, buf, sizeof(buf)), | |
4797 | inet_ntoa(zl3vni->local_vtep_ip), | |
4798 | CHECK_FLAG(zl3vni->filter, PREFIX_ROUTES_ONLY) | |
4799 | ? "prefix-routes-only" | |
4800 | : "none", | |
4801 | zebra_route_string(client->proto)); | |
4802 | ||
4803 | client->l3vniadd_cnt++; | |
4804 | return zserv_send_message(client, s); | |
4805 | } | |
4806 | ||
4807 | /* | |
4808 | * Inform BGP about local l3-VNI deletion. | |
4809 | */ | |
4810 | static int zl3vni_send_del_to_client(zebra_l3vni_t *zl3vni) | |
4811 | { | |
4812 | struct stream *s = NULL; | |
4813 | struct zserv *client = NULL; | |
4814 | ||
4815 | client = zserv_find_client(ZEBRA_ROUTE_BGP, 0); | |
4816 | /* BGP may not be running. */ | |
4817 | if (!client) | |
4818 | return 0; | |
4819 | ||
4820 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
4821 | ||
4822 | zclient_create_header(s, ZEBRA_L3VNI_DEL, zl3vni_vrf_id(zl3vni)); | |
4823 | stream_putl(s, zl3vni->vni); | |
4824 | ||
4825 | /* Write packet size. */ | |
4826 | stream_putw_at(s, 0, stream_get_endp(s)); | |
4827 | ||
4828 | if (IS_ZEBRA_DEBUG_VXLAN) | |
4829 | zlog_debug("Send L3_VNI_DEL %u VRF %s to %s", zl3vni->vni, | |
4830 | vrf_id_to_name(zl3vni_vrf_id(zl3vni)), | |
4831 | zebra_route_string(client->proto)); | |
4832 | ||
4833 | client->l3vnidel_cnt++; | |
4834 | return zserv_send_message(client, s); | |
4835 | } | |
4836 | ||
4837 | static void zebra_vxlan_process_l3vni_oper_up(zebra_l3vni_t *zl3vni) | |
4838 | { | |
4839 | if (!zl3vni) | |
4840 | return; | |
4841 | ||
4842 | /* send l3vni add to BGP */ | |
4843 | zl3vni_send_add_to_client(zl3vni); | |
4844 | } | |
4845 | ||
4846 | static void zebra_vxlan_process_l3vni_oper_down(zebra_l3vni_t *zl3vni) | |
4847 | { | |
4848 | if (!zl3vni) | |
4849 | return; | |
4850 | ||
4851 | /* send l3-vni del to BGP*/ | |
4852 | zl3vni_send_del_to_client(zl3vni); | |
4853 | } | |
4854 | ||
4855 | static void zvni_add_to_l3vni_list(struct hash_backet *backet, void *ctxt) | |
4856 | { | |
4857 | zebra_vni_t *zvni = (zebra_vni_t *)backet->data; | |
4858 | zebra_l3vni_t *zl3vni = (zebra_l3vni_t *)ctxt; | |
4859 | ||
4860 | if (zvni->vrf_id == zl3vni_vrf_id(zl3vni)) | |
4861 | listnode_add_sort(zl3vni->l2vnis, zvni); | |
4862 | } | |
4863 | ||
4864 | /* | |
4865 | * handle transition of vni from l2 to l3 and vice versa | |
4866 | */ | |
4867 | static int zebra_vxlan_handle_vni_transition(struct zebra_vrf *zvrf, vni_t vni, | |
4868 | int add) | |
4869 | { | |
4870 | zebra_vni_t *zvni = NULL; | |
4871 | ||
4872 | /* There is a possibility that VNI notification was already received | |
4873 | * from kernel and we programmed it as L2-VNI | |
4874 | * In such a case we need to delete this L2-VNI first, so | |
4875 | * that it can be reprogrammed as L3-VNI in the system. It is also | |
4876 | * possible that the vrf-vni mapping is removed from FRR while the vxlan | |
4877 | * interface is still present in kernel. In this case to keep it | |
4878 | * symmetric, we will delete the l3-vni and reprogram it as l2-vni | |
4879 | */ | |
4880 | if (add) { | |
4881 | /* Locate hash entry */ | |
4882 | zvni = zvni_lookup(vni); | |
4883 | if (!zvni) | |
4884 | return 0; | |
4885 | ||
4886 | if (IS_ZEBRA_DEBUG_VXLAN) | |
4887 | zlog_debug("Del L2-VNI %u - transition to L3-VNI", vni); | |
4888 | ||
4889 | /* Delete VNI from BGP. */ | |
4890 | zvni_send_del_to_client(zvni->vni); | |
4891 | ||
4892 | /* Free up all neighbors and MAC, if any. */ | |
4893 | zvni_neigh_del_all(zvni, 0, 0, DEL_ALL_NEIGH); | |
4894 | zvni_mac_del_all(zvni, 0, 0, DEL_ALL_MAC); | |
4895 | ||
4896 | /* Free up all remote VTEPs, if any. */ | |
4897 | zvni_vtep_del_all(zvni, 0); | |
4898 | ||
4899 | /* Delete the hash entry. */ | |
4900 | if (zvni_del(zvni)) { | |
4901 | flog_err(EC_ZEBRA_VNI_DEL_FAILED, | |
4902 | "Failed to del VNI hash %p, VNI %u", zvni, | |
4903 | zvni->vni); | |
4904 | return -1; | |
4905 | } | |
4906 | } else { | |
4907 | /* TODO_MITESH: This needs to be thought through. We don't have | |
4908 | * enough information at this point to reprogram the vni as | |
4909 | * l2-vni. One way is to store the required info in l3-vni and | |
4910 | * used it solely for this purpose | |
4911 | */ | |
4912 | } | |
4913 | ||
4914 | return 0; | |
4915 | } | |
4916 | ||
4917 | /* delete and uninstall rmac hash entry */ | |
4918 | static void zl3vni_del_rmac_hash_entry(struct hash_backet *backet, void *ctx) | |
4919 | { | |
4920 | zebra_mac_t *zrmac = NULL; | |
4921 | zebra_l3vni_t *zl3vni = NULL; | |
4922 | ||
4923 | zrmac = (zebra_mac_t *)backet->data; | |
4924 | zl3vni = (zebra_l3vni_t *)ctx; | |
4925 | zl3vni_rmac_uninstall(zl3vni, zrmac); | |
4926 | zl3vni_rmac_del(zl3vni, zrmac); | |
4927 | } | |
4928 | ||
4929 | /* delete and uninstall nh hash entry */ | |
4930 | static void zl3vni_del_nh_hash_entry(struct hash_backet *backet, void *ctx) | |
4931 | { | |
4932 | zebra_neigh_t *n = NULL; | |
4933 | zebra_l3vni_t *zl3vni = NULL; | |
4934 | ||
4935 | n = (zebra_neigh_t *)backet->data; | |
4936 | zl3vni = (zebra_l3vni_t *)ctx; | |
4937 | zl3vni_nh_uninstall(zl3vni, n); | |
4938 | zl3vni_nh_del(zl3vni, n); | |
4939 | } | |
4940 | ||
4941 | static int ip_prefix_send_to_client(vrf_id_t vrf_id, struct prefix *p, | |
4942 | uint16_t cmd) | |
4943 | { | |
4944 | struct zserv *client = NULL; | |
4945 | struct stream *s = NULL; | |
4946 | char buf[PREFIX_STRLEN]; | |
4947 | ||
4948 | client = zserv_find_client(ZEBRA_ROUTE_BGP, 0); | |
4949 | /* BGP may not be running. */ | |
4950 | if (!client) | |
4951 | return 0; | |
4952 | ||
4953 | s = stream_new(ZEBRA_MAX_PACKET_SIZ); | |
4954 | ||
4955 | zclient_create_header(s, cmd, vrf_id); | |
4956 | stream_put(s, p, sizeof(struct prefix)); | |
4957 | ||
4958 | /* Write packet size. */ | |
4959 | stream_putw_at(s, 0, stream_get_endp(s)); | |
4960 | ||
4961 | if (IS_ZEBRA_DEBUG_VXLAN) | |
4962 | zlog_debug("Send ip prefix %s %s on vrf %s", | |
4963 | prefix2str(p, buf, sizeof(buf)), | |
4964 | (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) ? "ADD" : "DEL", | |
4965 | vrf_id_to_name(vrf_id)); | |
4966 | ||
4967 | if (cmd == ZEBRA_IP_PREFIX_ROUTE_ADD) | |
4968 | client->prefixadd_cnt++; | |
4969 | else | |
4970 | client->prefixdel_cnt++; | |
4971 | ||
4972 | return zserv_send_message(client, s); | |
4973 | } | |
4974 | ||
4975 | /* re-add remote rmac if needed */ | |
4976 | static int zebra_vxlan_readd_remote_rmac(zebra_l3vni_t *zl3vni, | |
4977 | struct ethaddr *rmac) | |
4978 | { | |
4979 | char buf[ETHER_ADDR_STRLEN]; | |
4980 | zebra_mac_t *zrmac = NULL; | |
4981 | ||
4982 | zrmac = zl3vni_rmac_lookup(zl3vni, rmac); | |
4983 | if (!zrmac) | |
4984 | return 0; | |
4985 | ||
4986 | if (IS_ZEBRA_DEBUG_VXLAN) | |
4987 | zlog_debug("Del remote RMAC %s L3VNI %u - readd", | |
4988 | prefix_mac2str(rmac, buf, sizeof(buf)), zl3vni->vni); | |
4989 | ||
4990 | zl3vni_rmac_install(zl3vni, zrmac); | |
4991 | return 0; | |
4992 | } | |
4993 | ||
4994 | /* Process a remote MACIP add from BGP. */ | |
4995 | static void process_remote_macip_add(vni_t vni, | |
4996 | struct ethaddr *macaddr, | |
4997 | uint16_t ipa_len, | |
4998 | struct ipaddr *ipaddr, | |
4999 | uint8_t flags, | |
5000 | uint32_t seq, | |
5001 | struct in_addr vtep_ip) | |
5002 | { | |
5003 | zebra_vni_t *zvni; | |
5004 | zebra_vtep_t *zvtep; | |
5005 | zebra_mac_t *mac = NULL, *old_mac = NULL; | |
5006 | zebra_neigh_t *n = NULL; | |
5007 | int update_mac = 0, update_neigh = 0; | |
5008 | char buf[ETHER_ADDR_STRLEN]; | |
5009 | char buf1[INET6_ADDRSTRLEN]; | |
5010 | struct interface *ifp = NULL; | |
5011 | struct zebra_if *zif = NULL; | |
5012 | struct zebra_vrf *zvrf; | |
5013 | uint32_t tmp_seq; | |
5014 | bool sticky; | |
5015 | bool remote_gw; | |
5016 | bool is_router; | |
5017 | bool do_dad = false; | |
5018 | bool is_dup_detect = false; | |
5019 | ||
5020 | /* Locate VNI hash entry - expected to exist. */ | |
5021 | zvni = zvni_lookup(vni); | |
5022 | if (!zvni) { | |
5023 | zlog_warn("Unknown VNI %u upon remote MACIP ADD", vni); | |
5024 | return; | |
5025 | } | |
5026 | ||
5027 | ifp = zvni->vxlan_if; | |
5028 | if (ifp) | |
5029 | zif = ifp->info; | |
5030 | if (!ifp || | |
5031 | !if_is_operative(ifp) || | |
5032 | !zif || | |
5033 | !zif->brslave_info.br_if) { | |
5034 | zlog_warn("Ignoring remote MACIP ADD VNI %u, invalid interface state or info", | |
5035 | vni); | |
5036 | return; | |
5037 | } | |
5038 | ||
5039 | /* The remote VTEP specified should normally exist, but it is | |
5040 | * possible that when peering comes up, peer may advertise MACIP | |
5041 | * routes before advertising type-3 routes. | |
5042 | */ | |
5043 | zvtep = zvni_vtep_find(zvni, &vtep_ip); | |
5044 | if (!zvtep) { | |
5045 | if (zvni_vtep_add(zvni, &vtep_ip) == NULL) { | |
5046 | flog_err( | |
5047 | EC_ZEBRA_VTEP_ADD_FAILED, | |
5048 | "Failed to add remote VTEP, VNI %u zvni %p upon remote MACIP ADD", | |
5049 | vni, zvni); | |
5050 | return; | |
5051 | } | |
5052 | ||
5053 | zvni_vtep_install(zvni, &vtep_ip); | |
5054 | } | |
5055 | ||
5056 | sticky = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_STICKY); | |
5057 | remote_gw = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW); | |
5058 | is_router = !!CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_ROUTER_FLAG); | |
5059 | ||
5060 | mac = zvni_mac_lookup(zvni, macaddr); | |
5061 | ||
5062 | /* Ignore if the mac is already present as a gateway mac */ | |
5063 | if (mac && | |
5064 | CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW) && | |
5065 | CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_GW)) { | |
5066 | if (IS_ZEBRA_DEBUG_VXLAN) | |
5067 | zlog_debug("Ignore remote MACIP ADD VNI %u MAC %s%s%s as MAC is already configured as gateway MAC", | |
5068 | vni, | |
5069 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
5070 | ipa_len ? " IP " : "", | |
5071 | ipa_len ? | |
5072 | ipaddr2str(ipaddr, buf1, sizeof(buf1)) : ""); | |
5073 | return; | |
5074 | } | |
5075 | ||
5076 | zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id); | |
5077 | if (!zvrf) | |
5078 | return; | |
5079 | ||
5080 | /* check if the remote MAC is unknown or has a change. | |
5081 | * If so, that needs to be updated first. Note that client could | |
5082 | * install MAC and MACIP separately or just install the latter. | |
5083 | */ | |
5084 | if (!mac | |
5085 | || !CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
5086 | || sticky != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) | |
5087 | || remote_gw != !!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW) | |
5088 | || !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &vtep_ip) | |
5089 | || seq != mac->rem_seq) | |
5090 | update_mac = 1; | |
5091 | ||
5092 | if (update_mac) { | |
5093 | if (!mac) { | |
5094 | mac = zvni_mac_add(zvni, macaddr); | |
5095 | if (!mac) { | |
5096 | zlog_warn( | |
5097 | "Failed to add MAC %s VNI %u Remote VTEP %s", | |
5098 | prefix_mac2str(macaddr, buf, | |
5099 | sizeof(buf)), | |
5100 | vni, inet_ntoa(vtep_ip)); | |
5101 | return; | |
5102 | } | |
5103 | ||
5104 | /* Is this MAC created for a MACIP? */ | |
5105 | if (ipa_len) | |
5106 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
5107 | } else { | |
5108 | const char *mac_type; | |
5109 | ||
5110 | /* When host moves but changes its (MAC,IP) | |
5111 | * binding, BGP may install a MACIP entry that | |
5112 | * corresponds to "older" location of the host | |
5113 | * in transient situations (because {IP1,M1} | |
5114 | * is a different route from {IP1,M2}). Check | |
5115 | * the sequence number and ignore this update | |
5116 | * if appropriate. | |
5117 | */ | |
5118 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
5119 | tmp_seq = mac->loc_seq; | |
5120 | mac_type = "local"; | |
5121 | } else { | |
5122 | tmp_seq = mac->rem_seq; | |
5123 | mac_type = "remote"; | |
5124 | } | |
5125 | if (seq < tmp_seq) { | |
5126 | if (IS_ZEBRA_DEBUG_VXLAN) | |
5127 | zlog_debug("Ignore remote MACIP ADD VNI %u MAC %s%s%s as existing %s MAC has higher seq %u", | |
5128 | vni, | |
5129 | prefix_mac2str(macaddr, | |
5130 | buf, sizeof(buf)), | |
5131 | ipa_len ? " IP " : "", | |
5132 | ipa_len ? | |
5133 | ipaddr2str(ipaddr, | |
5134 | buf1, sizeof(buf1)) : "", | |
5135 | mac_type, | |
5136 | tmp_seq); | |
5137 | return; | |
5138 | } | |
5139 | } | |
5140 | ||
5141 | /* Check MAC's curent state is local (this is the case | |
5142 | * where MAC has moved from L->R) and check previous | |
5143 | * detection started via local learning. | |
5144 | * RFC-7432: A PE/VTEP that detects a MAC mobility | |
5145 | * event via local learning starts an M-second timer. | |
5146 | * | |
5147 | * VTEP-IP or seq. change along is not considered | |
5148 | * for dup. detection. | |
5149 | */ | |
5150 | if ((!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) && | |
5151 | mac->dad_count) | |
5152 | do_dad = true; | |
5153 | ||
5154 | /* Remove local MAC from BGP. */ | |
5155 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) | |
5156 | zvni_mac_send_del_to_client(zvni->vni, macaddr); | |
5157 | ||
5158 | /* Set "auto" and "remote" forwarding info. */ | |
5159 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
5160 | memset(&mac->fwd_info, 0, sizeof(mac->fwd_info)); | |
5161 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
5162 | mac->fwd_info.r_vtep_ip = vtep_ip; | |
5163 | ||
5164 | if (sticky) | |
5165 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
5166 | else | |
5167 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
5168 | ||
5169 | if (remote_gw) | |
5170 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
5171 | else | |
5172 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE_DEF_GW); | |
5173 | ||
5174 | zebra_vxlan_dup_addr_detect_for_mac(zvrf, mac, | |
5175 | mac->fwd_info.r_vtep_ip, | |
5176 | do_dad, &is_dup_detect, | |
5177 | false); | |
5178 | ||
5179 | zvni_process_neigh_on_remote_mac_add(zvni, mac); | |
5180 | ||
5181 | /* Install the entry. */ | |
5182 | if (!is_dup_detect) | |
5183 | zvni_mac_install(zvni, mac); | |
5184 | } | |
5185 | ||
5186 | /* Update seq number. */ | |
5187 | mac->rem_seq = seq; | |
5188 | ||
5189 | /* If there is no IP, return after clearing AUTO flag of MAC. */ | |
5190 | if (!ipa_len) { | |
5191 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
5192 | return; | |
5193 | } | |
5194 | ||
5195 | /* Reset flag */ | |
5196 | do_dad = false; | |
5197 | ||
5198 | /* Check if the remote neighbor itself is unknown or has a | |
5199 | * change. If so, create or update and then install the entry. | |
5200 | */ | |
5201 | n = zvni_neigh_lookup(zvni, ipaddr); | |
5202 | if (!n | |
5203 | || !CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE) | |
5204 | || is_router != !!CHECK_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG) | |
5205 | || (memcmp(&n->emac, macaddr, sizeof(*macaddr)) != 0) | |
5206 | || !IPV4_ADDR_SAME(&n->r_vtep_ip, &vtep_ip) | |
5207 | || seq != n->rem_seq) | |
5208 | update_neigh = 1; | |
5209 | ||
5210 | if (update_neigh) { | |
5211 | if (!n) { | |
5212 | n = zvni_neigh_add(zvni, ipaddr, macaddr); | |
5213 | if (!n) { | |
5214 | zlog_warn( | |
5215 | "Failed to add Neigh %s MAC %s VNI %u Remote VTEP %s", | |
5216 | ipaddr2str(ipaddr, buf1, | |
5217 | sizeof(buf1)), | |
5218 | prefix_mac2str(macaddr, buf, | |
5219 | sizeof(buf)), | |
5220 | vni, inet_ntoa(vtep_ip)); | |
5221 | return; | |
5222 | } | |
5223 | ||
5224 | } else { | |
5225 | const char *n_type; | |
5226 | ||
5227 | /* When host moves but changes its (MAC,IP) | |
5228 | * binding, BGP may install a MACIP entry that | |
5229 | * corresponds to "older" location of the host | |
5230 | * in transient situations (because {IP1,M1} | |
5231 | * is a different route from {IP1,M2}). Check | |
5232 | * the sequence number and ignore this update | |
5233 | * if appropriate. | |
5234 | */ | |
5235 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) { | |
5236 | tmp_seq = n->loc_seq; | |
5237 | n_type = "local"; | |
5238 | } else { | |
5239 | tmp_seq = n->rem_seq; | |
5240 | n_type = "remote"; | |
5241 | } | |
5242 | if (seq < tmp_seq) { | |
5243 | if (IS_ZEBRA_DEBUG_VXLAN) | |
5244 | zlog_debug("Ignore remote MACIP ADD VNI %u MAC %s%s%s as existing %s Neigh has higher seq %u", | |
5245 | vni, | |
5246 | prefix_mac2str(macaddr, | |
5247 | buf, sizeof(buf)), | |
5248 | " IP ", | |
5249 | ipaddr2str(ipaddr, buf1, sizeof(buf1)), | |
5250 | n_type, | |
5251 | tmp_seq); | |
5252 | return; | |
5253 | } | |
5254 | if (memcmp(&n->emac, macaddr, sizeof(*macaddr)) != 0) { | |
5255 | /* MAC change, send a delete for old | |
5256 | * neigh if learnt locally. | |
5257 | */ | |
5258 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL) && | |
5259 | IS_ZEBRA_NEIGH_ACTIVE(n)) | |
5260 | zvni_neigh_send_del_to_client( | |
5261 | zvni->vni, &n->ip, | |
5262 | &n->emac, 0); | |
5263 | ||
5264 | /* update neigh list for macs */ | |
5265 | old_mac = zvni_mac_lookup(zvni, &n->emac); | |
5266 | if (old_mac) { | |
5267 | listnode_delete(old_mac->neigh_list, n); | |
5268 | zvni_deref_ip2mac(zvni, old_mac); | |
5269 | } | |
5270 | listnode_add_sort(mac->neigh_list, n); | |
5271 | memcpy(&n->emac, macaddr, ETH_ALEN); | |
5272 | ||
5273 | /* Check Neigh's curent state is local | |
5274 | * (this is the case where neigh/host has moved | |
5275 | * from L->R) and check previous detction | |
5276 | * started via local learning. | |
5277 | * | |
5278 | * RFC-7432: A PE/VTEP that detects a MAC | |
5279 | * mobilit event via local learning starts | |
5280 | * an M-second timer. | |
5281 | * VTEP-IP or seq. change along is not | |
5282 | * considered for dup. detection. | |
5283 | * | |
5284 | * Mobilty event scenario-B IP-MAC binding | |
5285 | * changed. | |
5286 | */ | |
5287 | if ((!CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) | |
5288 | && n->dad_count) | |
5289 | do_dad = true; | |
5290 | ||
5291 | } | |
5292 | } | |
5293 | ||
5294 | /* Set "remote" forwarding info. */ | |
5295 | UNSET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL); | |
5296 | n->r_vtep_ip = vtep_ip; | |
5297 | SET_FLAG(n->flags, ZEBRA_NEIGH_REMOTE); | |
5298 | ||
5299 | /* Set router flag (R-bit) to this Neighbor entry */ | |
5300 | if (CHECK_FLAG(flags, ZEBRA_MACIP_TYPE_ROUTER_FLAG)) | |
5301 | SET_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG); | |
5302 | else | |
5303 | UNSET_FLAG(n->flags, ZEBRA_NEIGH_ROUTER_FLAG); | |
5304 | ||
5305 | /* Check old or new MAC detected as duplicate, | |
5306 | * inherit duplicate flag to this neigh. | |
5307 | */ | |
5308 | if (zebra_vxlan_ip_inherit_dad_from_mac(zvrf, old_mac, | |
5309 | mac, n)) { | |
5310 | flog_warn(EC_ZEBRA_DUP_IP_INHERIT_DETECTED, | |
5311 | "VNI %u: MAC %s IP %s detected as duplicate during remote update, inherit duplicate from MAC", | |
5312 | zvni->vni, | |
5313 | prefix_mac2str(&mac->macaddr, buf, sizeof(buf)), | |
5314 | ipaddr2str(&n->ip, buf1, sizeof(buf1))); | |
5315 | } | |
5316 | ||
5317 | /* Check duplicate address detection for IP */ | |
5318 | zebra_vxlan_dup_addr_detect_for_neigh(zvrf, n, | |
5319 | n->r_vtep_ip, | |
5320 | do_dad, | |
5321 | &is_dup_detect, | |
5322 | false); | |
5323 | /* Install the entry. */ | |
5324 | if (!is_dup_detect) | |
5325 | zvni_neigh_install(zvni, n); | |
5326 | } | |
5327 | ||
5328 | /* Update seq number. */ | |
5329 | n->rem_seq = seq; | |
5330 | } | |
5331 | ||
5332 | /* Process a remote MACIP delete from BGP. */ | |
5333 | static void process_remote_macip_del(vni_t vni, | |
5334 | struct ethaddr *macaddr, | |
5335 | uint16_t ipa_len, | |
5336 | struct ipaddr *ipaddr, | |
5337 | struct in_addr vtep_ip) | |
5338 | { | |
5339 | zebra_vni_t *zvni; | |
5340 | zebra_mac_t *mac = NULL; | |
5341 | zebra_neigh_t *n = NULL; | |
5342 | struct interface *ifp = NULL; | |
5343 | struct zebra_if *zif = NULL; | |
5344 | char buf[ETHER_ADDR_STRLEN]; | |
5345 | char buf1[INET6_ADDRSTRLEN]; | |
5346 | ||
5347 | /* Locate VNI hash entry - expected to exist. */ | |
5348 | zvni = zvni_lookup(vni); | |
5349 | if (!zvni) { | |
5350 | if (IS_ZEBRA_DEBUG_VXLAN) | |
5351 | zlog_debug("Unknown VNI %u upon remote MACIP DEL", vni); | |
5352 | return; | |
5353 | } | |
5354 | ||
5355 | ifp = zvni->vxlan_if; | |
5356 | if (ifp) | |
5357 | zif = ifp->info; | |
5358 | if (!ifp || | |
5359 | !if_is_operative(ifp) || | |
5360 | !zif || | |
5361 | !zif->brslave_info.br_if) { | |
5362 | if (IS_ZEBRA_DEBUG_VXLAN) | |
5363 | zlog_debug("Ignoring remote MACIP DEL VNI %u, invalid interface state or info", | |
5364 | vni); | |
5365 | return; | |
5366 | } | |
5367 | ||
5368 | /* The remote VTEP specified is normally expected to exist, but | |
5369 | * it is possible that the peer may delete the VTEP before deleting | |
5370 | * any MACs referring to the VTEP, in which case the handler (see | |
5371 | * remote_vtep_del) would have already deleted the MACs. | |
5372 | */ | |
5373 | if (!zvni_vtep_find(zvni, &vtep_ip)) | |
5374 | return; | |
5375 | ||
5376 | mac = zvni_mac_lookup(zvni, macaddr); | |
5377 | if (ipa_len) | |
5378 | n = zvni_neigh_lookup(zvni, ipaddr); | |
5379 | ||
5380 | if (n && !mac) { | |
5381 | zlog_warn("Failed to locate MAC %s for neigh %s VNI %u upon remote MACIP DEL", | |
5382 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
5383 | ipaddr2str(ipaddr, buf1, sizeof(buf1)), vni); | |
5384 | return; | |
5385 | } | |
5386 | ||
5387 | /* If the remote mac or neighbor doesn't exist there is nothing | |
5388 | * more to do. Otherwise, uninstall the entry and then remove it. | |
5389 | */ | |
5390 | if (!mac && !n) | |
5391 | return; | |
5392 | ||
5393 | /* Ignore the delete if this mac is a gateway mac-ip */ | |
5394 | if (mac | |
5395 | && CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) | |
5396 | && CHECK_FLAG(mac->flags, ZEBRA_MAC_DEF_GW)) { | |
5397 | zlog_warn( | |
5398 | "Ignore remote MACIP DEL VNI %u MAC %s%s%s as MAC is already configured as gateway MAC", | |
5399 | vni, | |
5400 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
5401 | ipa_len ? " IP " : "", | |
5402 | ipa_len ? | |
5403 | ipaddr2str(ipaddr, buf1, sizeof(buf1)) : ""); | |
5404 | return; | |
5405 | } | |
5406 | ||
5407 | /* Uninstall remote neighbor or MAC. */ | |
5408 | if (n) { | |
5409 | /* When the MAC changes for an IP, it is possible the | |
5410 | * client may update the new MAC before trying to delete the | |
5411 | * "old" neighbor (as these are two different MACIP routes). | |
5412 | * Do the delete only if the MAC matches. | |
5413 | */ | |
5414 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE) | |
5415 | && (memcmp(n->emac.octet, macaddr->octet, ETH_ALEN) == 0)) { | |
5416 | zvni_neigh_uninstall(zvni, n); | |
5417 | zvni_neigh_del(zvni, n); | |
5418 | zvni_deref_ip2mac(zvni, mac); | |
5419 | } | |
5420 | } else { | |
5421 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
5422 | zvni_process_neigh_on_remote_mac_del(zvni, mac); | |
5423 | /* | |
5424 | * the remote sequence number in the auto mac entry | |
5425 | * needs to be reset to 0 as the mac entry may have | |
5426 | * been removed on all VTEPs (including | |
5427 | * the originating one) | |
5428 | */ | |
5429 | mac->rem_seq = 0; | |
5430 | ||
5431 | /* If all remote neighbors referencing a remote MAC | |
5432 | * go away, we need to uninstall the MAC. | |
5433 | */ | |
5434 | if (remote_neigh_count(mac) == 0) { | |
5435 | zvni_mac_uninstall(zvni, mac); | |
5436 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
5437 | } | |
5438 | if (list_isempty(mac->neigh_list)) | |
5439 | zvni_mac_del(zvni, mac); | |
5440 | else | |
5441 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
5442 | } | |
5443 | } | |
5444 | } | |
5445 | ||
5446 | ||
5447 | /* Public functions */ | |
5448 | ||
5449 | int is_l3vni_for_prefix_routes_only(vni_t vni) | |
5450 | { | |
5451 | zebra_l3vni_t *zl3vni = NULL; | |
5452 | ||
5453 | zl3vni = zl3vni_lookup(vni); | |
5454 | if (!zl3vni) | |
5455 | return 0; | |
5456 | ||
5457 | return CHECK_FLAG(zl3vni->filter, PREFIX_ROUTES_ONLY) ? 1 : 0; | |
5458 | } | |
5459 | ||
5460 | /* handle evpn route in vrf table */ | |
5461 | void zebra_vxlan_evpn_vrf_route_add(vrf_id_t vrf_id, struct ethaddr *rmac, | |
5462 | struct ipaddr *vtep_ip, | |
5463 | struct prefix *host_prefix) | |
5464 | { | |
5465 | zebra_l3vni_t *zl3vni = NULL; | |
5466 | struct ipaddr ipv4_vtep; | |
5467 | ||
5468 | zl3vni = zl3vni_from_vrf(vrf_id); | |
5469 | if (!zl3vni || !is_l3vni_oper_up(zl3vni)) | |
5470 | return; | |
5471 | ||
5472 | /* | |
5473 | * add the next hop neighbor - | |
5474 | * neigh to be installed is the ipv6 nexthop neigh | |
5475 | */ | |
5476 | zl3vni_remote_nh_add(zl3vni, vtep_ip, rmac, host_prefix); | |
5477 | ||
5478 | /* | |
5479 | * if the remote vtep is a ipv4 mapped ipv6 address convert it to ipv4 | |
5480 | * address. Rmac is programmed against the ipv4 vtep because we only | |
5481 | * support ipv4 tunnels in the h/w right now | |
5482 | */ | |
5483 | memset(&ipv4_vtep, 0, sizeof(struct ipaddr)); | |
5484 | ipv4_vtep.ipa_type = IPADDR_V4; | |
5485 | if (vtep_ip->ipa_type == IPADDR_V6) | |
5486 | ipv4_mapped_ipv6_to_ipv4(&vtep_ip->ipaddr_v6, | |
5487 | &(ipv4_vtep.ipaddr_v4)); | |
5488 | else | |
5489 | memcpy(&(ipv4_vtep.ipaddr_v4), &vtep_ip->ipaddr_v4, | |
5490 | sizeof(struct in_addr)); | |
5491 | ||
5492 | /* | |
5493 | * add the rmac - remote rmac to be installed is against the ipv4 | |
5494 | * nexthop address | |
5495 | */ | |
5496 | zl3vni_remote_rmac_add(zl3vni, rmac, &ipv4_vtep, host_prefix); | |
5497 | } | |
5498 | ||
5499 | /* handle evpn vrf route delete */ | |
5500 | void zebra_vxlan_evpn_vrf_route_del(vrf_id_t vrf_id, | |
5501 | struct ipaddr *vtep_ip, | |
5502 | struct prefix *host_prefix) | |
5503 | { | |
5504 | zebra_l3vni_t *zl3vni = NULL; | |
5505 | zebra_neigh_t *nh = NULL; | |
5506 | zebra_mac_t *zrmac = NULL; | |
5507 | ||
5508 | zl3vni = zl3vni_from_vrf(vrf_id); | |
5509 | if (!zl3vni) | |
5510 | return; | |
5511 | ||
5512 | /* find the next hop entry and rmac entry */ | |
5513 | nh = zl3vni_nh_lookup(zl3vni, vtep_ip); | |
5514 | if (!nh) | |
5515 | return; | |
5516 | zrmac = zl3vni_rmac_lookup(zl3vni, &nh->emac); | |
5517 | ||
5518 | /* delete the next hop entry */ | |
5519 | zl3vni_remote_nh_del(zl3vni, nh, host_prefix); | |
5520 | ||
5521 | /* delete the rmac entry */ | |
5522 | if (zrmac) | |
5523 | zl3vni_remote_rmac_del(zl3vni, zrmac, host_prefix); | |
5524 | ||
5525 | } | |
5526 | ||
5527 | void zebra_vxlan_print_specific_rmac_l3vni(struct vty *vty, vni_t l3vni, | |
5528 | struct ethaddr *rmac, bool use_json) | |
5529 | { | |
5530 | zebra_l3vni_t *zl3vni = NULL; | |
5531 | zebra_mac_t *zrmac = NULL; | |
5532 | json_object *json = NULL; | |
5533 | ||
5534 | if (!is_evpn_enabled()) { | |
5535 | if (use_json) | |
5536 | vty_out(vty, "{}\n"); | |
5537 | return; | |
5538 | } | |
5539 | ||
5540 | if (use_json) | |
5541 | json = json_object_new_object(); | |
5542 | ||
5543 | zl3vni = zl3vni_lookup(l3vni); | |
5544 | if (!zl3vni) { | |
5545 | if (use_json) | |
5546 | vty_out(vty, "{}\n"); | |
5547 | else | |
5548 | vty_out(vty, "%% L3-VNI %u doesn't exist\n", l3vni); | |
5549 | return; | |
5550 | } | |
5551 | ||
5552 | zrmac = zl3vni_rmac_lookup(zl3vni, rmac); | |
5553 | if (!zrmac) { | |
5554 | if (use_json) | |
5555 | vty_out(vty, "{}\n"); | |
5556 | else | |
5557 | vty_out(vty, | |
5558 | "%% Requested RMAC doesn't exist in L3-VNI %u", | |
5559 | l3vni); | |
5560 | return; | |
5561 | } | |
5562 | ||
5563 | zl3vni_print_rmac(zrmac, vty, json); | |
5564 | ||
5565 | if (use_json) { | |
5566 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
5567 | json, JSON_C_TO_STRING_PRETTY)); | |
5568 | json_object_free(json); | |
5569 | } | |
5570 | } | |
5571 | ||
5572 | void zebra_vxlan_print_rmacs_l3vni(struct vty *vty, vni_t l3vni, bool use_json) | |
5573 | { | |
5574 | zebra_l3vni_t *zl3vni; | |
5575 | uint32_t num_rmacs; | |
5576 | struct rmac_walk_ctx wctx; | |
5577 | json_object *json = NULL; | |
5578 | ||
5579 | if (!is_evpn_enabled()) | |
5580 | return; | |
5581 | ||
5582 | zl3vni = zl3vni_lookup(l3vni); | |
5583 | if (!zl3vni) { | |
5584 | if (use_json) | |
5585 | vty_out(vty, "{}\n"); | |
5586 | else | |
5587 | vty_out(vty, "%% L3-VNI %u does not exist\n", l3vni); | |
5588 | return; | |
5589 | } | |
5590 | num_rmacs = hashcount(zl3vni->rmac_table); | |
5591 | if (!num_rmacs) | |
5592 | return; | |
5593 | ||
5594 | if (use_json) | |
5595 | json = json_object_new_object(); | |
5596 | ||
5597 | memset(&wctx, 0, sizeof(struct rmac_walk_ctx)); | |
5598 | wctx.vty = vty; | |
5599 | wctx.json = json; | |
5600 | if (!use_json) { | |
5601 | vty_out(vty, "Number of Remote RMACs known for this VNI: %u\n", | |
5602 | num_rmacs); | |
5603 | vty_out(vty, "%-17s %-21s\n", "MAC", "Remote VTEP"); | |
5604 | } else | |
5605 | json_object_int_add(json, "numRmacs", num_rmacs); | |
5606 | ||
5607 | hash_iterate(zl3vni->rmac_table, zl3vni_print_rmac_hash, &wctx); | |
5608 | ||
5609 | if (use_json) { | |
5610 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
5611 | json, JSON_C_TO_STRING_PRETTY)); | |
5612 | json_object_free(json); | |
5613 | } | |
5614 | } | |
5615 | ||
5616 | void zebra_vxlan_print_rmacs_all_l3vni(struct vty *vty, bool use_json) | |
5617 | { | |
5618 | json_object *json = NULL; | |
5619 | void *args[2]; | |
5620 | ||
5621 | if (!is_evpn_enabled()) { | |
5622 | if (use_json) | |
5623 | vty_out(vty, "{}\n"); | |
5624 | return; | |
5625 | } | |
5626 | ||
5627 | if (use_json) | |
5628 | json = json_object_new_object(); | |
5629 | ||
5630 | args[0] = vty; | |
5631 | args[1] = json; | |
5632 | hash_iterate(zrouter.l3vni_table, | |
5633 | (void (*)(struct hash_backet *, | |
5634 | void *))zl3vni_print_rmac_hash_all_vni, | |
5635 | args); | |
5636 | ||
5637 | if (use_json) { | |
5638 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
5639 | json, JSON_C_TO_STRING_PRETTY)); | |
5640 | json_object_free(json); | |
5641 | } | |
5642 | } | |
5643 | ||
5644 | void zebra_vxlan_print_specific_nh_l3vni(struct vty *vty, vni_t l3vni, | |
5645 | struct ipaddr *ip, bool use_json) | |
5646 | { | |
5647 | zebra_l3vni_t *zl3vni = NULL; | |
5648 | zebra_neigh_t *n = NULL; | |
5649 | json_object *json = NULL; | |
5650 | ||
5651 | if (!is_evpn_enabled()) { | |
5652 | if (use_json) | |
5653 | vty_out(vty, "{}\n"); | |
5654 | return; | |
5655 | } | |
5656 | ||
5657 | if (use_json) | |
5658 | json = json_object_new_object(); | |
5659 | ||
5660 | zl3vni = zl3vni_lookup(l3vni); | |
5661 | if (!zl3vni) { | |
5662 | if (use_json) | |
5663 | vty_out(vty, "{}\n"); | |
5664 | else | |
5665 | vty_out(vty, "%% L3-VNI %u does not exist\n", l3vni); | |
5666 | return; | |
5667 | } | |
5668 | ||
5669 | n = zl3vni_nh_lookup(zl3vni, ip); | |
5670 | if (!n) { | |
5671 | if (use_json) | |
5672 | vty_out(vty, "{}\n"); | |
5673 | else | |
5674 | vty_out(vty, | |
5675 | "%% Requested next-hop not present for L3-VNI %u", | |
5676 | l3vni); | |
5677 | return; | |
5678 | } | |
5679 | ||
5680 | zl3vni_print_nh(n, vty, json); | |
5681 | ||
5682 | if (use_json) { | |
5683 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
5684 | json, JSON_C_TO_STRING_PRETTY)); | |
5685 | json_object_free(json); | |
5686 | } | |
5687 | } | |
5688 | ||
5689 | void zebra_vxlan_print_nh_l3vni(struct vty *vty, vni_t l3vni, bool use_json) | |
5690 | { | |
5691 | uint32_t num_nh; | |
5692 | struct nh_walk_ctx wctx; | |
5693 | json_object *json = NULL; | |
5694 | zebra_l3vni_t *zl3vni = NULL; | |
5695 | ||
5696 | if (!is_evpn_enabled()) | |
5697 | return; | |
5698 | ||
5699 | zl3vni = zl3vni_lookup(l3vni); | |
5700 | if (!zl3vni) { | |
5701 | if (use_json) | |
5702 | vty_out(vty, "{}\n"); | |
5703 | else | |
5704 | vty_out(vty, "%% L3-VNI %u does not exist\n", l3vni); | |
5705 | return; | |
5706 | } | |
5707 | ||
5708 | num_nh = hashcount(zl3vni->nh_table); | |
5709 | if (!num_nh) | |
5710 | return; | |
5711 | ||
5712 | if (use_json) | |
5713 | json = json_object_new_object(); | |
5714 | ||
5715 | wctx.vty = vty; | |
5716 | wctx.json = json; | |
5717 | if (!use_json) { | |
5718 | vty_out(vty, "Number of NH Neighbors known for this VNI: %u\n", | |
5719 | num_nh); | |
5720 | vty_out(vty, "%-15s %-17s\n", "IP", "RMAC"); | |
5721 | } else | |
5722 | json_object_int_add(json, "numNextHops", num_nh); | |
5723 | ||
5724 | hash_iterate(zl3vni->nh_table, zl3vni_print_nh_hash, &wctx); | |
5725 | ||
5726 | if (use_json) { | |
5727 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
5728 | json, JSON_C_TO_STRING_PRETTY)); | |
5729 | json_object_free(json); | |
5730 | } | |
5731 | } | |
5732 | ||
5733 | void zebra_vxlan_print_nh_all_l3vni(struct vty *vty, bool use_json) | |
5734 | { | |
5735 | json_object *json = NULL; | |
5736 | void *args[2]; | |
5737 | ||
5738 | if (!is_evpn_enabled()) { | |
5739 | if (use_json) | |
5740 | vty_out(vty, "{}\n"); | |
5741 | return; | |
5742 | } | |
5743 | ||
5744 | if (use_json) | |
5745 | json = json_object_new_object(); | |
5746 | ||
5747 | args[0] = vty; | |
5748 | args[1] = json; | |
5749 | hash_iterate(zrouter.l3vni_table, | |
5750 | (void (*)(struct hash_backet *, | |
5751 | void *))zl3vni_print_nh_hash_all_vni, | |
5752 | args); | |
5753 | ||
5754 | if (use_json) { | |
5755 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
5756 | json, JSON_C_TO_STRING_PRETTY)); | |
5757 | json_object_free(json); | |
5758 | } | |
5759 | } | |
5760 | ||
5761 | /* | |
5762 | * Display L3 VNI information (VTY command handler). | |
5763 | */ | |
5764 | void zebra_vxlan_print_l3vni(struct vty *vty, vni_t vni, bool use_json) | |
5765 | { | |
5766 | void *args[2]; | |
5767 | json_object *json = NULL; | |
5768 | zebra_l3vni_t *zl3vni = NULL; | |
5769 | ||
5770 | if (!is_evpn_enabled()) { | |
5771 | if (use_json) | |
5772 | vty_out(vty, "{}\n"); | |
5773 | return; | |
5774 | } | |
5775 | ||
5776 | zl3vni = zl3vni_lookup(vni); | |
5777 | if (!zl3vni) { | |
5778 | if (use_json) | |
5779 | vty_out(vty, "{}\n"); | |
5780 | else | |
5781 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
5782 | return; | |
5783 | } | |
5784 | ||
5785 | if (use_json) | |
5786 | json = json_object_new_object(); | |
5787 | ||
5788 | args[0] = vty; | |
5789 | args[1] = json; | |
5790 | zl3vni_print(zl3vni, (void *)args); | |
5791 | ||
5792 | if (use_json) { | |
5793 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
5794 | json, JSON_C_TO_STRING_PRETTY)); | |
5795 | json_object_free(json); | |
5796 | } | |
5797 | } | |
5798 | ||
5799 | void zebra_vxlan_print_vrf_vni(struct vty *vty, struct zebra_vrf *zvrf, | |
5800 | json_object *json_vrfs) | |
5801 | { | |
5802 | char buf[ETHER_ADDR_STRLEN]; | |
5803 | zebra_l3vni_t *zl3vni = NULL; | |
5804 | ||
5805 | zl3vni = zl3vni_lookup(zvrf->l3vni); | |
5806 | if (!zl3vni) | |
5807 | return; | |
5808 | ||
5809 | if (!json_vrfs) { | |
5810 | vty_out(vty, "%-37s %-10u %-20s %-20s %-5s %-18s\n", | |
5811 | zvrf_name(zvrf), zl3vni->vni, | |
5812 | zl3vni_vxlan_if_name(zl3vni), | |
5813 | zl3vni_svi_if_name(zl3vni), zl3vni_state2str(zl3vni), | |
5814 | zl3vni_rmac2str(zl3vni, buf, sizeof(buf))); | |
5815 | } else { | |
5816 | json_object *json_vrf = NULL; | |
5817 | ||
5818 | json_vrf = json_object_new_object(); | |
5819 | json_object_string_add(json_vrf, "vrf", zvrf_name(zvrf)); | |
5820 | json_object_int_add(json_vrf, "vni", zl3vni->vni); | |
5821 | json_object_string_add(json_vrf, "vxlanIntf", | |
5822 | zl3vni_vxlan_if_name(zl3vni)); | |
5823 | json_object_string_add(json_vrf, "sviIntf", | |
5824 | zl3vni_svi_if_name(zl3vni)); | |
5825 | json_object_string_add(json_vrf, "state", | |
5826 | zl3vni_state2str(zl3vni)); | |
5827 | json_object_string_add( | |
5828 | json_vrf, "routerMac", | |
5829 | zl3vni_rmac2str(zl3vni, buf, sizeof(buf))); | |
5830 | json_object_array_add(json_vrfs, json_vrf); | |
5831 | } | |
5832 | } | |
5833 | ||
5834 | /* | |
5835 | * Display Neighbors for a VNI (VTY command handler). | |
5836 | */ | |
5837 | void zebra_vxlan_print_neigh_vni(struct vty *vty, struct zebra_vrf *zvrf, | |
5838 | vni_t vni, bool use_json) | |
5839 | { | |
5840 | zebra_vni_t *zvni; | |
5841 | uint32_t num_neigh; | |
5842 | struct neigh_walk_ctx wctx; | |
5843 | json_object *json = NULL; | |
5844 | ||
5845 | if (!is_evpn_enabled()) | |
5846 | return; | |
5847 | zvni = zvni_lookup(vni); | |
5848 | if (!zvni) { | |
5849 | if (use_json) | |
5850 | vty_out(vty, "{}\n"); | |
5851 | else | |
5852 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
5853 | return; | |
5854 | } | |
5855 | num_neigh = hashcount(zvni->neigh_table); | |
5856 | if (!num_neigh) | |
5857 | return; | |
5858 | ||
5859 | if (use_json) | |
5860 | json = json_object_new_object(); | |
5861 | ||
5862 | /* Since we have IPv6 addresses to deal with which can vary widely in | |
5863 | * size, we try to be a bit more elegant in display by first computing | |
5864 | * the maximum width. | |
5865 | */ | |
5866 | memset(&wctx, 0, sizeof(struct neigh_walk_ctx)); | |
5867 | wctx.zvni = zvni; | |
5868 | wctx.vty = vty; | |
5869 | wctx.addr_width = 15; | |
5870 | wctx.json = json; | |
5871 | hash_iterate(zvni->neigh_table, zvni_find_neigh_addr_width, &wctx); | |
5872 | ||
5873 | if (!use_json) { | |
5874 | vty_out(vty, | |
5875 | "Number of ARPs (local and remote) known for this VNI: %u\n", | |
5876 | num_neigh); | |
5877 | vty_out(vty, "%*s %-6s %-8s %-17s %-21s\n", | |
5878 | -wctx.addr_width, "IP", "Type", | |
5879 | "State", "MAC", "Remote VTEP"); | |
5880 | } else | |
5881 | json_object_int_add(json, "numArpNd", num_neigh); | |
5882 | ||
5883 | hash_iterate(zvni->neigh_table, zvni_print_neigh_hash, &wctx); | |
5884 | if (use_json) { | |
5885 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
5886 | json, JSON_C_TO_STRING_PRETTY)); | |
5887 | json_object_free(json); | |
5888 | } | |
5889 | } | |
5890 | ||
5891 | /* | |
5892 | * Display neighbors across all VNIs (VTY command handler). | |
5893 | */ | |
5894 | void zebra_vxlan_print_neigh_all_vni(struct vty *vty, struct zebra_vrf *zvrf, | |
5895 | bool print_dup, bool use_json) | |
5896 | { | |
5897 | json_object *json = NULL; | |
5898 | void *args[3]; | |
5899 | ||
5900 | if (!is_evpn_enabled()) | |
5901 | return; | |
5902 | ||
5903 | if (use_json) | |
5904 | json = json_object_new_object(); | |
5905 | ||
5906 | args[0] = vty; | |
5907 | args[1] = json; | |
5908 | args[2] = (void *)(ptrdiff_t)print_dup; | |
5909 | ||
5910 | hash_iterate(zvrf->vni_table, | |
5911 | (void (*)(struct hash_backet *, | |
5912 | void *))zvni_print_neigh_hash_all_vni, | |
5913 | args); | |
5914 | if (use_json) { | |
5915 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
5916 | json, JSON_C_TO_STRING_PRETTY)); | |
5917 | json_object_free(json); | |
5918 | } | |
5919 | } | |
5920 | ||
5921 | /* | |
5922 | * Display neighbors across all VNIs in detail(VTY command handler). | |
5923 | */ | |
5924 | void zebra_vxlan_print_neigh_all_vni_detail(struct vty *vty, | |
5925 | struct zebra_vrf *zvrf, | |
5926 | bool print_dup, bool use_json) | |
5927 | { | |
5928 | json_object *json = NULL; | |
5929 | void *args[3]; | |
5930 | ||
5931 | if (!is_evpn_enabled()) | |
5932 | return; | |
5933 | ||
5934 | if (use_json) | |
5935 | json = json_object_new_object(); | |
5936 | ||
5937 | args[0] = vty; | |
5938 | args[1] = json; | |
5939 | args[2] = (void *)(ptrdiff_t)print_dup; | |
5940 | ||
5941 | hash_iterate(zvrf->vni_table, | |
5942 | (void (*)(struct hash_backet *, | |
5943 | void *))zvni_print_neigh_hash_all_vni_detail, | |
5944 | args); | |
5945 | if (use_json) { | |
5946 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
5947 | json, JSON_C_TO_STRING_PRETTY)); | |
5948 | json_object_free(json); | |
5949 | } | |
5950 | } | |
5951 | ||
5952 | /* | |
5953 | * Display specific neighbor for a VNI, if present (VTY command handler). | |
5954 | */ | |
5955 | void zebra_vxlan_print_specific_neigh_vni(struct vty *vty, | |
5956 | struct zebra_vrf *zvrf, vni_t vni, | |
5957 | struct ipaddr *ip, bool use_json) | |
5958 | { | |
5959 | zebra_vni_t *zvni; | |
5960 | zebra_neigh_t *n; | |
5961 | json_object *json = NULL; | |
5962 | ||
5963 | if (!is_evpn_enabled()) | |
5964 | return; | |
5965 | zvni = zvni_lookup(vni); | |
5966 | if (!zvni) { | |
5967 | if (use_json) | |
5968 | vty_out(vty, "{}\n"); | |
5969 | else | |
5970 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
5971 | return; | |
5972 | } | |
5973 | n = zvni_neigh_lookup(zvni, ip); | |
5974 | if (!n) { | |
5975 | if (!use_json) | |
5976 | vty_out(vty, | |
5977 | "%% Requested neighbor does not exist in VNI %u\n", | |
5978 | vni); | |
5979 | return; | |
5980 | } | |
5981 | if (use_json) | |
5982 | json = json_object_new_object(); | |
5983 | ||
5984 | zvni_print_neigh(n, vty, json); | |
5985 | ||
5986 | if (use_json) { | |
5987 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
5988 | json, JSON_C_TO_STRING_PRETTY)); | |
5989 | json_object_free(json); | |
5990 | } | |
5991 | } | |
5992 | ||
5993 | /* | |
5994 | * Display neighbors for a VNI from specific VTEP (VTY command handler). | |
5995 | * By definition, these are remote neighbors. | |
5996 | */ | |
5997 | void zebra_vxlan_print_neigh_vni_vtep(struct vty *vty, struct zebra_vrf *zvrf, | |
5998 | vni_t vni, struct in_addr vtep_ip, | |
5999 | bool use_json) | |
6000 | { | |
6001 | zebra_vni_t *zvni; | |
6002 | uint32_t num_neigh; | |
6003 | struct neigh_walk_ctx wctx; | |
6004 | json_object *json = NULL; | |
6005 | ||
6006 | if (!is_evpn_enabled()) | |
6007 | return; | |
6008 | zvni = zvni_lookup(vni); | |
6009 | if (!zvni) { | |
6010 | if (use_json) | |
6011 | vty_out(vty, "{}\n"); | |
6012 | else | |
6013 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
6014 | return; | |
6015 | } | |
6016 | num_neigh = hashcount(zvni->neigh_table); | |
6017 | if (!num_neigh) | |
6018 | return; | |
6019 | ||
6020 | memset(&wctx, 0, sizeof(struct neigh_walk_ctx)); | |
6021 | wctx.zvni = zvni; | |
6022 | wctx.vty = vty; | |
6023 | wctx.addr_width = 15; | |
6024 | wctx.flags = SHOW_REMOTE_NEIGH_FROM_VTEP; | |
6025 | wctx.r_vtep_ip = vtep_ip; | |
6026 | wctx.json = json; | |
6027 | hash_iterate(zvni->neigh_table, zvni_find_neigh_addr_width, &wctx); | |
6028 | hash_iterate(zvni->neigh_table, zvni_print_neigh_hash, &wctx); | |
6029 | ||
6030 | if (use_json) { | |
6031 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6032 | json, JSON_C_TO_STRING_PRETTY)); | |
6033 | json_object_free(json); | |
6034 | } | |
6035 | } | |
6036 | ||
6037 | /* | |
6038 | * Display Duplicate detected Neighbors for a VNI | |
6039 | * (VTY command handler). | |
6040 | */ | |
6041 | void zebra_vxlan_print_neigh_vni_dad(struct vty *vty, | |
6042 | struct zebra_vrf *zvrf, | |
6043 | vni_t vni, | |
6044 | bool use_json) | |
6045 | { | |
6046 | zebra_vni_t *zvni; | |
6047 | uint32_t num_neigh; | |
6048 | struct neigh_walk_ctx wctx; | |
6049 | json_object *json = NULL; | |
6050 | ||
6051 | if (!is_evpn_enabled()) | |
6052 | return; | |
6053 | ||
6054 | zvni = zvni_lookup(vni); | |
6055 | if (!zvni) { | |
6056 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
6057 | return; | |
6058 | } | |
6059 | ||
6060 | num_neigh = hashcount(zvni->neigh_table); | |
6061 | if (!num_neigh) | |
6062 | return; | |
6063 | ||
6064 | num_neigh = num_dup_detected_neighs(zvni); | |
6065 | if (!num_neigh) | |
6066 | return; | |
6067 | ||
6068 | if (use_json) | |
6069 | json = json_object_new_object(); | |
6070 | ||
6071 | /* Since we have IPv6 addresses to deal with which can vary widely in | |
6072 | * size, we try to be a bit more elegant in display by first computing | |
6073 | * the maximum width. | |
6074 | */ | |
6075 | memset(&wctx, 0, sizeof(struct neigh_walk_ctx)); | |
6076 | wctx.zvni = zvni; | |
6077 | wctx.vty = vty; | |
6078 | wctx.addr_width = 15; | |
6079 | wctx.json = json; | |
6080 | hash_iterate(zvni->neigh_table, zvni_find_neigh_addr_width, &wctx); | |
6081 | ||
6082 | if (!use_json) { | |
6083 | vty_out(vty, | |
6084 | "Number of ARPs (local and remote) known for this VNI: %u\n", | |
6085 | num_neigh); | |
6086 | vty_out(vty, "%*s %-6s %-8s %-17s %-21s\n", | |
6087 | -wctx.addr_width, "IP", "Type", | |
6088 | "State", "MAC", "Remote VTEP"); | |
6089 | } else | |
6090 | json_object_int_add(json, "numArpNd", num_neigh); | |
6091 | ||
6092 | hash_iterate(zvni->neigh_table, zvni_print_dad_neigh_hash, &wctx); | |
6093 | ||
6094 | if (use_json) { | |
6095 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6096 | json, JSON_C_TO_STRING_PRETTY)); | |
6097 | json_object_free(json); | |
6098 | } | |
6099 | } | |
6100 | ||
6101 | /* | |
6102 | * Display MACs for a VNI (VTY command handler). | |
6103 | */ | |
6104 | void zebra_vxlan_print_macs_vni(struct vty *vty, struct zebra_vrf *zvrf, | |
6105 | vni_t vni, bool use_json) | |
6106 | { | |
6107 | zebra_vni_t *zvni; | |
6108 | uint32_t num_macs; | |
6109 | struct mac_walk_ctx wctx; | |
6110 | json_object *json = NULL; | |
6111 | json_object *json_mac = NULL; | |
6112 | ||
6113 | if (!is_evpn_enabled()) | |
6114 | return; | |
6115 | zvni = zvni_lookup(vni); | |
6116 | if (!zvni) { | |
6117 | if (use_json) | |
6118 | vty_out(vty, "{}\n"); | |
6119 | else | |
6120 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
6121 | return; | |
6122 | } | |
6123 | num_macs = num_valid_macs(zvni); | |
6124 | if (!num_macs) | |
6125 | return; | |
6126 | ||
6127 | if (use_json) { | |
6128 | json = json_object_new_object(); | |
6129 | json_mac = json_object_new_object(); | |
6130 | } | |
6131 | ||
6132 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); | |
6133 | wctx.zvni = zvni; | |
6134 | wctx.vty = vty; | |
6135 | wctx.json = json_mac; | |
6136 | ||
6137 | if (!use_json) { | |
6138 | vty_out(vty, | |
6139 | "Number of MACs (local and remote) known for this VNI: %u\n", | |
6140 | num_macs); | |
6141 | vty_out(vty, "%-17s %-6s %-21s %-5s\n", "MAC", "Type", | |
6142 | "Intf/Remote VTEP", "VLAN"); | |
6143 | } else | |
6144 | json_object_int_add(json, "numMacs", num_macs); | |
6145 | ||
6146 | hash_iterate(zvni->mac_table, zvni_print_mac_hash, &wctx); | |
6147 | ||
6148 | if (use_json) { | |
6149 | json_object_object_add(json, "macs", json_mac); | |
6150 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6151 | json, JSON_C_TO_STRING_PRETTY)); | |
6152 | json_object_free(json); | |
6153 | } | |
6154 | } | |
6155 | ||
6156 | /* | |
6157 | * Display MACs for all VNIs (VTY command handler). | |
6158 | */ | |
6159 | void zebra_vxlan_print_macs_all_vni(struct vty *vty, struct zebra_vrf *zvrf, | |
6160 | bool print_dup, bool use_json) | |
6161 | { | |
6162 | struct mac_walk_ctx wctx; | |
6163 | json_object *json = NULL; | |
6164 | ||
6165 | if (!is_evpn_enabled()) { | |
6166 | if (use_json) | |
6167 | vty_out(vty, "{}\n"); | |
6168 | return; | |
6169 | } | |
6170 | if (use_json) | |
6171 | json = json_object_new_object(); | |
6172 | ||
6173 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); | |
6174 | wctx.vty = vty; | |
6175 | wctx.json = json; | |
6176 | wctx.print_dup = print_dup; | |
6177 | hash_iterate(zvrf->vni_table, zvni_print_mac_hash_all_vni, &wctx); | |
6178 | ||
6179 | if (use_json) { | |
6180 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6181 | json, JSON_C_TO_STRING_PRETTY)); | |
6182 | json_object_free(json); | |
6183 | } | |
6184 | } | |
6185 | ||
6186 | /* | |
6187 | * Display MACs in detail for all VNIs (VTY command handler). | |
6188 | */ | |
6189 | void zebra_vxlan_print_macs_all_vni_detail(struct vty *vty, | |
6190 | struct zebra_vrf *zvrf, | |
6191 | bool print_dup, bool use_json) | |
6192 | { | |
6193 | struct mac_walk_ctx wctx; | |
6194 | json_object *json = NULL; | |
6195 | ||
6196 | if (!is_evpn_enabled()) { | |
6197 | if (use_json) | |
6198 | vty_out(vty, "{}\n"); | |
6199 | return; | |
6200 | } | |
6201 | if (use_json) | |
6202 | json = json_object_new_object(); | |
6203 | ||
6204 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); | |
6205 | wctx.vty = vty; | |
6206 | wctx.json = json; | |
6207 | wctx.print_dup = print_dup; | |
6208 | hash_iterate(zvrf->vni_table, zvni_print_mac_hash_all_vni_detail, | |
6209 | &wctx); | |
6210 | ||
6211 | if (use_json) { | |
6212 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6213 | json, JSON_C_TO_STRING_PRETTY)); | |
6214 | json_object_free(json); | |
6215 | } | |
6216 | } | |
6217 | ||
6218 | /* | |
6219 | * Display MACs for all VNIs (VTY command handler). | |
6220 | */ | |
6221 | void zebra_vxlan_print_macs_all_vni_vtep(struct vty *vty, | |
6222 | struct zebra_vrf *zvrf, | |
6223 | struct in_addr vtep_ip, bool use_json) | |
6224 | { | |
6225 | struct mac_walk_ctx wctx; | |
6226 | json_object *json = NULL; | |
6227 | ||
6228 | if (!is_evpn_enabled()) | |
6229 | return; | |
6230 | ||
6231 | if (use_json) | |
6232 | json = json_object_new_object(); | |
6233 | ||
6234 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); | |
6235 | wctx.vty = vty; | |
6236 | wctx.flags = SHOW_REMOTE_MAC_FROM_VTEP; | |
6237 | wctx.r_vtep_ip = vtep_ip; | |
6238 | wctx.json = json; | |
6239 | hash_iterate(zvrf->vni_table, zvni_print_mac_hash_all_vni, &wctx); | |
6240 | ||
6241 | if (use_json) { | |
6242 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6243 | json, JSON_C_TO_STRING_PRETTY)); | |
6244 | json_object_free(json); | |
6245 | } | |
6246 | } | |
6247 | ||
6248 | /* | |
6249 | * Display specific MAC for a VNI, if present (VTY command handler). | |
6250 | */ | |
6251 | void zebra_vxlan_print_specific_mac_vni(struct vty *vty, struct zebra_vrf *zvrf, | |
6252 | vni_t vni, struct ethaddr *macaddr, | |
6253 | bool use_json) | |
6254 | { | |
6255 | zebra_vni_t *zvni; | |
6256 | zebra_mac_t *mac; | |
6257 | json_object *json = NULL; | |
6258 | ||
6259 | if (!is_evpn_enabled()) | |
6260 | return; | |
6261 | ||
6262 | zvni = zvni_lookup(vni); | |
6263 | if (!zvni) { | |
6264 | if (use_json) | |
6265 | vty_out(vty, "{}\n"); | |
6266 | else | |
6267 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
6268 | return; | |
6269 | } | |
6270 | mac = zvni_mac_lookup(zvni, macaddr); | |
6271 | if (!mac) { | |
6272 | if (use_json) | |
6273 | vty_out(vty, "{}\n"); | |
6274 | else | |
6275 | vty_out(vty, | |
6276 | "%% Requested MAC does not exist in VNI %u\n", | |
6277 | vni); | |
6278 | return; | |
6279 | } | |
6280 | ||
6281 | if (use_json) | |
6282 | json = json_object_new_object(); | |
6283 | ||
6284 | zvni_print_mac(mac, vty, json); | |
6285 | if (use_json) { | |
6286 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6287 | json, JSON_C_TO_STRING_PRETTY)); | |
6288 | json_object_free(json); | |
6289 | } | |
6290 | } | |
6291 | ||
6292 | /* Print Duplicate MACs per VNI */ | |
6293 | void zebra_vxlan_print_macs_vni_dad(struct vty *vty, | |
6294 | struct zebra_vrf *zvrf, | |
6295 | vni_t vni, bool use_json) | |
6296 | { | |
6297 | zebra_vni_t *zvni; | |
6298 | struct mac_walk_ctx wctx; | |
6299 | uint32_t num_macs; | |
6300 | json_object *json = NULL; | |
6301 | json_object *json_mac = NULL; | |
6302 | ||
6303 | if (!is_evpn_enabled()) | |
6304 | return; | |
6305 | ||
6306 | zvni = zvni_lookup(vni); | |
6307 | if (!zvni) { | |
6308 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
6309 | return; | |
6310 | } | |
6311 | ||
6312 | num_macs = num_valid_macs(zvni); | |
6313 | if (!num_macs) | |
6314 | return; | |
6315 | ||
6316 | num_macs = num_dup_detected_macs(zvni); | |
6317 | if (!num_macs) | |
6318 | return; | |
6319 | ||
6320 | if (use_json) { | |
6321 | json = json_object_new_object(); | |
6322 | json_mac = json_object_new_object(); | |
6323 | } | |
6324 | ||
6325 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); | |
6326 | wctx.zvni = zvni; | |
6327 | wctx.vty = vty; | |
6328 | wctx.json = json_mac; | |
6329 | ||
6330 | if (!use_json) { | |
6331 | vty_out(vty, | |
6332 | "Number of MACs (local and remote) known for this VNI: %u\n", | |
6333 | num_macs); | |
6334 | vty_out(vty, "%-17s %-6s %-21s %-5s\n", "MAC", "Type", | |
6335 | "Intf/Remote VTEP", "VLAN"); | |
6336 | } else | |
6337 | json_object_int_add(json, "numMacs", num_macs); | |
6338 | ||
6339 | hash_iterate(zvni->mac_table, zvni_print_dad_mac_hash, &wctx); | |
6340 | ||
6341 | if (use_json) { | |
6342 | json_object_object_add(json, "macs", json_mac); | |
6343 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6344 | json, JSON_C_TO_STRING_PRETTY)); | |
6345 | json_object_free(json); | |
6346 | } | |
6347 | ||
6348 | } | |
6349 | ||
6350 | int zebra_vxlan_clear_dup_detect_vni_mac(struct vty *vty, | |
6351 | struct zebra_vrf *zvrf, | |
6352 | vni_t vni, struct ethaddr *macaddr) | |
6353 | { | |
6354 | zebra_vni_t *zvni; | |
6355 | zebra_mac_t *mac; | |
6356 | struct listnode *node = NULL; | |
6357 | zebra_neigh_t *nbr = NULL; | |
6358 | ||
6359 | if (!is_evpn_enabled()) | |
6360 | return CMD_SUCCESS; | |
6361 | ||
6362 | zvni = zvni_lookup(vni); | |
6363 | if (!zvni) { | |
6364 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
6365 | return CMD_WARNING; | |
6366 | } | |
6367 | ||
6368 | mac = zvni_mac_lookup(zvni, macaddr); | |
6369 | if (!mac) { | |
6370 | vty_out(vty, "%% Requested MAC does not exist in VNI %u\n", | |
6371 | vni); | |
6372 | return CMD_WARNING; | |
6373 | } | |
6374 | ||
6375 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { | |
6376 | vty_out(vty, "%% Requested MAC is not duplicate detected\n"); | |
6377 | return CMD_WARNING; | |
6378 | } | |
6379 | ||
6380 | /* Remove all IPs as duplicate associcated with this MAC */ | |
6381 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
6382 | /* For local neigh mark inactive so MACIP update is generated | |
6383 | * to BGP. This is a scenario where MAC update received | |
6384 | * and detected as duplicate which marked neigh as duplicate. | |
6385 | * Later local neigh update did not get a chance to relay | |
6386 | * to BGP. Similarly remote macip update, neigh needs to be | |
6387 | * installed locally. | |
6388 | */ | |
6389 | if (nbr->dad_count) { | |
6390 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
6391 | ZEBRA_NEIGH_SET_INACTIVE(nbr); | |
6392 | else if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE)) | |
6393 | zvni_neigh_install(zvni, nbr); | |
6394 | } | |
6395 | ||
6396 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
6397 | nbr->dad_count = 0; | |
6398 | nbr->detect_start_time.tv_sec = 0; | |
6399 | nbr->dad_dup_detect_time = 0; | |
6400 | } | |
6401 | ||
6402 | UNSET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
6403 | mac->dad_count = 0; | |
6404 | mac->detect_start_time.tv_sec = 0; | |
6405 | mac->detect_start_time.tv_usec = 0; | |
6406 | mac->dad_dup_detect_time = 0; | |
6407 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
6408 | ||
6409 | /* Local: Notify Peer VTEPs, Remote: Install the entry */ | |
6410 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
6411 | /* Inform to BGP */ | |
6412 | if (zvni_mac_send_add_to_client(zvni->vni, | |
6413 | &mac->macaddr, | |
6414 | mac->flags, | |
6415 | mac->loc_seq)) | |
6416 | return CMD_SUCCESS; | |
6417 | ||
6418 | /* Process all neighbors associated with this MAC. */ | |
6419 | zvni_process_neigh_on_local_mac_change(zvni, mac, 0); | |
6420 | ||
6421 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
6422 | zvni_process_neigh_on_remote_mac_add(zvni, mac); | |
6423 | ||
6424 | /* Install the entry. */ | |
6425 | zvni_mac_install(zvni, mac); | |
6426 | } | |
6427 | ||
6428 | return CMD_SUCCESS; | |
6429 | } | |
6430 | ||
6431 | int zebra_vxlan_clear_dup_detect_vni_ip(struct vty *vty, | |
6432 | struct zebra_vrf *zvrf, | |
6433 | vni_t vni, struct ipaddr *ip) | |
6434 | { | |
6435 | zebra_vni_t *zvni; | |
6436 | zebra_neigh_t *nbr; | |
6437 | zebra_mac_t *mac; | |
6438 | char buf[INET6_ADDRSTRLEN]; | |
6439 | char buf2[ETHER_ADDR_STRLEN]; | |
6440 | ||
6441 | if (!is_evpn_enabled()) | |
6442 | return CMD_SUCCESS; | |
6443 | ||
6444 | zvni = zvni_lookup(vni); | |
6445 | if (!zvni) { | |
6446 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
6447 | return CMD_WARNING; | |
6448 | } | |
6449 | ||
6450 | nbr = zvni_neigh_lookup(zvni, ip); | |
6451 | if (!nbr) { | |
6452 | vty_out(vty, | |
6453 | "%% Requested host IP does not exist in VNI %u\n", | |
6454 | vni); | |
6455 | return CMD_WARNING; | |
6456 | } | |
6457 | ||
6458 | ipaddr2str(&nbr->ip, buf, sizeof(buf)); | |
6459 | ||
6460 | if (!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) { | |
6461 | vty_out(vty, | |
6462 | "%% Requsted host IP %s is not duplicate detected\n", | |
6463 | buf); | |
6464 | return CMD_WARNING; | |
6465 | } | |
6466 | ||
6467 | mac = zvni_mac_lookup(zvni, &nbr->emac); | |
6468 | ||
6469 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) { | |
6470 | vty_out(vty, | |
6471 | "%% Requested IP's associated MAC %s is still in duplicate state\n", | |
6472 | prefix_mac2str(&nbr->emac, buf2, sizeof(buf2))); | |
6473 | return CMD_WARNING_CONFIG_FAILED; | |
6474 | } | |
6475 | ||
6476 | if (IS_ZEBRA_DEBUG_VXLAN) | |
6477 | zlog_debug("%s: clear neigh %s in dup state, flags 0x%x seq %u", | |
6478 | __PRETTY_FUNCTION__, buf, nbr->flags, | |
6479 | nbr->loc_seq); | |
6480 | ||
6481 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
6482 | nbr->dad_count = 0; | |
6483 | nbr->detect_start_time.tv_sec = 0; | |
6484 | nbr->detect_start_time.tv_usec = 0; | |
6485 | nbr->dad_dup_detect_time = 0; | |
6486 | THREAD_OFF(nbr->dad_ip_auto_recovery_timer); | |
6487 | ||
6488 | if (!!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) { | |
6489 | zvni_neigh_send_add_to_client(zvni->vni, ip, | |
6490 | &nbr->emac, | |
6491 | nbr->flags, nbr->loc_seq); | |
6492 | } else if (!!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE)) { | |
6493 | zvni_neigh_install(zvni, nbr); | |
6494 | } | |
6495 | ||
6496 | return CMD_SUCCESS; | |
6497 | } | |
6498 | ||
6499 | static void zvni_clear_dup_mac_hash(struct hash_backet *backet, void *ctxt) | |
6500 | { | |
6501 | struct mac_walk_ctx *wctx = ctxt; | |
6502 | zebra_mac_t *mac; | |
6503 | zebra_vni_t *zvni; | |
6504 | struct listnode *node = NULL; | |
6505 | zebra_neigh_t *nbr = NULL; | |
6506 | ||
6507 | mac = (zebra_mac_t *)backet->data; | |
6508 | if (!mac) | |
6509 | return; | |
6510 | ||
6511 | zvni = wctx->zvni; | |
6512 | ||
6513 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE)) | |
6514 | return; | |
6515 | ||
6516 | UNSET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
6517 | mac->dad_count = 0; | |
6518 | mac->detect_start_time.tv_sec = 0; | |
6519 | mac->detect_start_time.tv_usec = 0; | |
6520 | mac->dad_dup_detect_time = 0; | |
6521 | THREAD_OFF(mac->dad_mac_auto_recovery_timer); | |
6522 | ||
6523 | /* Remove all IPs as duplicate associcated with this MAC */ | |
6524 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
6525 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL) | |
6526 | && nbr->dad_count) | |
6527 | ZEBRA_NEIGH_SET_INACTIVE(nbr); | |
6528 | ||
6529 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
6530 | nbr->dad_count = 0; | |
6531 | nbr->detect_start_time.tv_sec = 0; | |
6532 | nbr->dad_dup_detect_time = 0; | |
6533 | } | |
6534 | ||
6535 | /* Local: Notify Peer VTEPs, Remote: Install the entry */ | |
6536 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
6537 | /* Inform to BGP */ | |
6538 | if (zvni_mac_send_add_to_client(zvni->vni, | |
6539 | &mac->macaddr, | |
6540 | mac->flags, mac->loc_seq)) | |
6541 | return; | |
6542 | ||
6543 | /* Process all neighbors associated with this MAC. */ | |
6544 | zvni_process_neigh_on_local_mac_change(zvni, mac, 0); | |
6545 | ||
6546 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
6547 | zvni_process_neigh_on_remote_mac_add(zvni, mac); | |
6548 | ||
6549 | /* Install the entry. */ | |
6550 | zvni_mac_install(zvni, mac); | |
6551 | } | |
6552 | } | |
6553 | ||
6554 | static void zvni_clear_dup_neigh_hash(struct hash_backet *backet, void *ctxt) | |
6555 | { | |
6556 | struct neigh_walk_ctx *wctx = ctxt; | |
6557 | zebra_neigh_t *nbr; | |
6558 | zebra_vni_t *zvni; | |
6559 | char buf[INET6_ADDRSTRLEN]; | |
6560 | ||
6561 | nbr = (zebra_neigh_t *)backet->data; | |
6562 | if (!nbr) | |
6563 | return; | |
6564 | ||
6565 | zvni = wctx->zvni; | |
6566 | ||
6567 | if (!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE)) | |
6568 | return; | |
6569 | ||
6570 | if (IS_ZEBRA_DEBUG_VXLAN) { | |
6571 | ipaddr2str(&nbr->ip, buf, sizeof(buf)); | |
6572 | zlog_debug( | |
6573 | "%s: clear neigh %s dup state, flags 0x%x seq %u", | |
6574 | __PRETTY_FUNCTION__, buf, | |
6575 | nbr->flags, nbr->loc_seq); | |
6576 | } | |
6577 | ||
6578 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
6579 | nbr->dad_count = 0; | |
6580 | nbr->detect_start_time.tv_sec = 0; | |
6581 | nbr->detect_start_time.tv_usec = 0; | |
6582 | nbr->dad_dup_detect_time = 0; | |
6583 | THREAD_OFF(nbr->dad_ip_auto_recovery_timer); | |
6584 | ||
6585 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) { | |
6586 | zvni_neigh_send_add_to_client(zvni->vni, &nbr->ip, | |
6587 | &nbr->emac, | |
6588 | nbr->flags, nbr->loc_seq); | |
6589 | } else if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE)) { | |
6590 | zvni_neigh_install(zvni, nbr); | |
6591 | } | |
6592 | } | |
6593 | ||
6594 | static void zvni_clear_dup_detect_hash_vni_all(struct hash_backet *backet, | |
6595 | void **args) | |
6596 | { | |
6597 | struct vty *vty; | |
6598 | zebra_vni_t *zvni; | |
6599 | struct zebra_vrf *zvrf; | |
6600 | struct mac_walk_ctx m_wctx; | |
6601 | struct neigh_walk_ctx n_wctx; | |
6602 | ||
6603 | zvni = (zebra_vni_t *)backet->data; | |
6604 | if (!zvni) | |
6605 | return; | |
6606 | ||
6607 | vty = (struct vty *)args[0]; | |
6608 | zvrf = (struct zebra_vrf *)args[1]; | |
6609 | ||
6610 | if (hashcount(zvni->neigh_table)) { | |
6611 | memset(&n_wctx, 0, sizeof(struct neigh_walk_ctx)); | |
6612 | n_wctx.vty = vty; | |
6613 | n_wctx.zvni = zvni; | |
6614 | n_wctx.zvrf = zvrf; | |
6615 | hash_iterate(zvni->neigh_table, zvni_clear_dup_neigh_hash, | |
6616 | &n_wctx); | |
6617 | } | |
6618 | ||
6619 | if (num_valid_macs(zvni)) { | |
6620 | memset(&m_wctx, 0, sizeof(struct mac_walk_ctx)); | |
6621 | m_wctx.zvni = zvni; | |
6622 | m_wctx.vty = vty; | |
6623 | m_wctx.zvrf = zvrf; | |
6624 | hash_iterate(zvni->mac_table, zvni_clear_dup_mac_hash, &m_wctx); | |
6625 | } | |
6626 | ||
6627 | } | |
6628 | ||
6629 | int zebra_vxlan_clear_dup_detect_vni_all(struct vty *vty, | |
6630 | struct zebra_vrf *zvrf) | |
6631 | { | |
6632 | void *args[2]; | |
6633 | ||
6634 | if (!is_evpn_enabled()) | |
6635 | return CMD_SUCCESS; | |
6636 | ||
6637 | args[0] = vty; | |
6638 | args[1] = zvrf; | |
6639 | ||
6640 | hash_iterate(zvrf->vni_table, | |
6641 | (void (*)(struct hash_backet *, void *)) | |
6642 | zvni_clear_dup_detect_hash_vni_all, args); | |
6643 | ||
6644 | return CMD_SUCCESS; | |
6645 | } | |
6646 | ||
6647 | int zebra_vxlan_clear_dup_detect_vni(struct vty *vty, | |
6648 | struct zebra_vrf *zvrf, | |
6649 | vni_t vni) | |
6650 | { | |
6651 | zebra_vni_t *zvni; | |
6652 | struct mac_walk_ctx m_wctx; | |
6653 | struct neigh_walk_ctx n_wctx; | |
6654 | ||
6655 | if (!is_evpn_enabled()) | |
6656 | return CMD_SUCCESS; | |
6657 | ||
6658 | zvni = zvni_lookup(vni); | |
6659 | if (!zvni) { | |
6660 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
6661 | return CMD_WARNING; | |
6662 | } | |
6663 | ||
6664 | if (hashcount(zvni->neigh_table)) { | |
6665 | memset(&n_wctx, 0, sizeof(struct neigh_walk_ctx)); | |
6666 | n_wctx.vty = vty; | |
6667 | n_wctx.zvni = zvni; | |
6668 | n_wctx.zvrf = zvrf; | |
6669 | hash_iterate(zvni->neigh_table, zvni_clear_dup_neigh_hash, | |
6670 | &n_wctx); | |
6671 | } | |
6672 | ||
6673 | if (num_valid_macs(zvni)) { | |
6674 | memset(&m_wctx, 0, sizeof(struct mac_walk_ctx)); | |
6675 | m_wctx.zvni = zvni; | |
6676 | m_wctx.vty = vty; | |
6677 | m_wctx.zvrf = zvrf; | |
6678 | hash_iterate(zvni->mac_table, zvni_clear_dup_mac_hash, &m_wctx); | |
6679 | } | |
6680 | ||
6681 | return CMD_SUCCESS; | |
6682 | } | |
6683 | ||
6684 | /* | |
6685 | * Display MACs for a VNI from specific VTEP (VTY command handler). | |
6686 | */ | |
6687 | void zebra_vxlan_print_macs_vni_vtep(struct vty *vty, struct zebra_vrf *zvrf, | |
6688 | vni_t vni, struct in_addr vtep_ip, | |
6689 | bool use_json) | |
6690 | { | |
6691 | zebra_vni_t *zvni; | |
6692 | uint32_t num_macs; | |
6693 | struct mac_walk_ctx wctx; | |
6694 | json_object *json = NULL; | |
6695 | json_object *json_mac = NULL; | |
6696 | ||
6697 | if (!is_evpn_enabled()) | |
6698 | return; | |
6699 | zvni = zvni_lookup(vni); | |
6700 | if (!zvni) { | |
6701 | if (use_json) | |
6702 | vty_out(vty, "{}\n"); | |
6703 | else | |
6704 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
6705 | return; | |
6706 | } | |
6707 | num_macs = num_valid_macs(zvni); | |
6708 | if (!num_macs) | |
6709 | return; | |
6710 | ||
6711 | if (use_json) { | |
6712 | json = json_object_new_object(); | |
6713 | json_mac = json_object_new_object(); | |
6714 | } | |
6715 | ||
6716 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); | |
6717 | wctx.zvni = zvni; | |
6718 | wctx.vty = vty; | |
6719 | wctx.flags = SHOW_REMOTE_MAC_FROM_VTEP; | |
6720 | wctx.r_vtep_ip = vtep_ip; | |
6721 | wctx.json = json_mac; | |
6722 | hash_iterate(zvni->mac_table, zvni_print_mac_hash, &wctx); | |
6723 | ||
6724 | if (use_json) { | |
6725 | json_object_int_add(json, "numMacs", wctx.count); | |
6726 | if (wctx.count) | |
6727 | json_object_object_add(json, "macs", json_mac); | |
6728 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6729 | json, JSON_C_TO_STRING_PRETTY)); | |
6730 | json_object_free(json); | |
6731 | } | |
6732 | } | |
6733 | ||
6734 | ||
6735 | /* | |
6736 | * Display VNI information (VTY command handler). | |
6737 | */ | |
6738 | void zebra_vxlan_print_vni(struct vty *vty, struct zebra_vrf *zvrf, vni_t vni, | |
6739 | bool use_json) | |
6740 | { | |
6741 | json_object *json = NULL; | |
6742 | void *args[2]; | |
6743 | zebra_l3vni_t *zl3vni = NULL; | |
6744 | zebra_vni_t *zvni = NULL; | |
6745 | ||
6746 | if (!is_evpn_enabled()) | |
6747 | return; | |
6748 | ||
6749 | if (use_json) | |
6750 | json = json_object_new_object(); | |
6751 | args[0] = vty; | |
6752 | args[1] = json; | |
6753 | ||
6754 | zl3vni = zl3vni_lookup(vni); | |
6755 | if (zl3vni) { | |
6756 | zl3vni_print(zl3vni, (void *)args); | |
6757 | } else { | |
6758 | zvni = zvni_lookup(vni); | |
6759 | if (!zvni) { | |
6760 | if (use_json) | |
6761 | vty_out(vty, "{}\n"); | |
6762 | else | |
6763 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
6764 | return; | |
6765 | } | |
6766 | ||
6767 | zvni_print(zvni, (void *)args); | |
6768 | } | |
6769 | ||
6770 | if (use_json) { | |
6771 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6772 | json, JSON_C_TO_STRING_PRETTY)); | |
6773 | json_object_free(json); | |
6774 | } | |
6775 | } | |
6776 | ||
6777 | /* Display all global details for EVPN */ | |
6778 | void zebra_vxlan_print_evpn(struct vty *vty, bool uj) | |
6779 | { | |
6780 | int num_l2vnis = 0; | |
6781 | int num_l3vnis = 0; | |
6782 | int num_vnis = 0; | |
6783 | json_object *json = NULL; | |
6784 | struct zebra_vrf *zvrf = NULL; | |
6785 | ||
6786 | if (!is_evpn_enabled()) | |
6787 | return; | |
6788 | ||
6789 | zvrf = vrf_info_lookup(VRF_DEFAULT); | |
6790 | if (!zvrf) | |
6791 | return; | |
6792 | ||
6793 | num_l3vnis = hashcount(zrouter.l3vni_table); | |
6794 | num_l2vnis = hashcount(zvrf->vni_table); | |
6795 | num_vnis = num_l2vnis + num_l3vnis; | |
6796 | ||
6797 | if (uj) { | |
6798 | json = json_object_new_object(); | |
6799 | json_object_string_add(json, "advertiseGatewayMacip", | |
6800 | zvrf->advertise_gw_macip ? "Yes" : "No"); | |
6801 | json_object_int_add(json, "numVnis", num_vnis); | |
6802 | json_object_int_add(json, "numL2Vnis", num_l2vnis); | |
6803 | json_object_int_add(json, "numL3Vnis", num_l3vnis); | |
6804 | if (zvrf->dup_addr_detect) | |
6805 | json_object_boolean_true_add(json, | |
6806 | "isDuplicateAddrDetection"); | |
6807 | else | |
6808 | json_object_boolean_false_add(json, | |
6809 | "isDuplicateAddrDetection"); | |
6810 | json_object_int_add(json, "maxMoves", zvrf->dad_max_moves); | |
6811 | json_object_int_add(json, "detectionTime", zvrf->dad_time); | |
6812 | json_object_int_add(json, "detectionFreezeTime", | |
6813 | zvrf->dad_freeze_time); | |
6814 | ||
6815 | } else { | |
6816 | vty_out(vty, "L2 VNIs: %u\n", num_l2vnis); | |
6817 | vty_out(vty, "L3 VNIs: %u\n", num_l3vnis); | |
6818 | vty_out(vty, "Advertise gateway mac-ip: %s\n", | |
6819 | zvrf->advertise_gw_macip ? "Yes" : "No"); | |
6820 | vty_out(vty, "Duplicate address detection: %s\n", | |
6821 | zvrf->dup_addr_detect ? "Enable" : "Disable"); | |
6822 | vty_out(vty, " Detection max-moves %u, time %d\n", | |
6823 | zvrf->dad_max_moves, zvrf->dad_time); | |
6824 | if (zvrf->dad_freeze) { | |
6825 | if (zvrf->dad_freeze_time) | |
6826 | vty_out(vty, " Detection freeze %u\n", | |
6827 | zvrf->dad_freeze_time); | |
6828 | else | |
6829 | vty_out(vty, " Detection freeze %s\n", | |
6830 | "permanent"); | |
6831 | } | |
6832 | } | |
6833 | ||
6834 | if (uj) { | |
6835 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6836 | json, JSON_C_TO_STRING_PRETTY)); | |
6837 | json_object_free(json); | |
6838 | } | |
6839 | } | |
6840 | ||
6841 | /* | |
6842 | * Display VNI hash table (VTY command handler). | |
6843 | */ | |
6844 | void zebra_vxlan_print_vnis(struct vty *vty, struct zebra_vrf *zvrf, | |
6845 | bool use_json) | |
6846 | { | |
6847 | json_object *json = NULL; | |
6848 | void *args[2]; | |
6849 | ||
6850 | if (!is_evpn_enabled()) | |
6851 | return; | |
6852 | ||
6853 | if (use_json) | |
6854 | json = json_object_new_object(); | |
6855 | else | |
6856 | vty_out(vty, "%-10s %-4s %-21s %-8s %-8s %-15s %-37s\n", "VNI", | |
6857 | "Type", "VxLAN IF", "# MACs", "# ARPs", | |
6858 | "# Remote VTEPs", "Tenant VRF"); | |
6859 | ||
6860 | args[0] = vty; | |
6861 | args[1] = json; | |
6862 | ||
6863 | /* Display all L2-VNIs */ | |
6864 | hash_iterate(zvrf->vni_table, | |
6865 | (void (*)(struct hash_backet *, void *))zvni_print_hash, | |
6866 | args); | |
6867 | ||
6868 | /* Display all L3-VNIs */ | |
6869 | hash_iterate(zrouter.l3vni_table, | |
6870 | (void (*)(struct hash_backet *, void *))zl3vni_print_hash, | |
6871 | args); | |
6872 | ||
6873 | if (use_json) { | |
6874 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6875 | json, JSON_C_TO_STRING_PRETTY)); | |
6876 | json_object_free(json); | |
6877 | } | |
6878 | } | |
6879 | ||
6880 | void zebra_vxlan_dup_addr_detection(ZAPI_HANDLER_ARGS) | |
6881 | { | |
6882 | struct stream *s; | |
6883 | int time = 0; | |
6884 | uint32_t max_moves = 0; | |
6885 | uint32_t freeze_time = 0; | |
6886 | bool dup_addr_detect = false; | |
6887 | bool freeze = false; | |
6888 | ||
6889 | s = msg; | |
6890 | STREAM_GETL(s, dup_addr_detect); | |
6891 | STREAM_GETL(s, time); | |
6892 | STREAM_GETL(s, max_moves); | |
6893 | STREAM_GETL(s, freeze); | |
6894 | STREAM_GETL(s, freeze_time); | |
6895 | ||
6896 | /* DAD previous state was enabled, and new state is disable, | |
6897 | * clear all duplicate detected addresses. | |
6898 | */ | |
6899 | if (zvrf->dup_addr_detect && !dup_addr_detect) | |
6900 | zebra_vxlan_clear_dup_detect_vni_all(NULL, zvrf); | |
6901 | ||
6902 | zvrf->dup_addr_detect = dup_addr_detect; | |
6903 | zvrf->dad_time = time; | |
6904 | zvrf->dad_max_moves = max_moves; | |
6905 | zvrf->dad_freeze = freeze; | |
6906 | zvrf->dad_freeze_time = freeze_time; | |
6907 | ||
6908 | if (IS_ZEBRA_DEBUG_VXLAN) | |
6909 | zlog_debug( | |
6910 | "%s: duplicate detect %s max_moves %u timeout %u freeze %s freeze_time %u", | |
6911 | __PRETTY_FUNCTION__, | |
6912 | zvrf->dup_addr_detect ? "enable" : "disable", | |
6913 | zvrf->dad_max_moves, | |
6914 | zvrf->dad_time, | |
6915 | zvrf->dad_freeze ? "enable" : "disable", | |
6916 | zvrf->dad_freeze_time); | |
6917 | ||
6918 | stream_failure: | |
6919 | return; | |
6920 | } | |
6921 | ||
6922 | /* | |
6923 | * Display VNI hash table in detail(VTY command handler). | |
6924 | */ | |
6925 | void zebra_vxlan_print_vnis_detail(struct vty *vty, struct zebra_vrf *zvrf, | |
6926 | bool use_json) | |
6927 | { | |
6928 | json_object *json = NULL; | |
6929 | struct zebra_ns *zns = NULL; | |
6930 | struct zvni_evpn_show zes; | |
6931 | ||
6932 | if (!is_evpn_enabled()) | |
6933 | return; | |
6934 | ||
6935 | zns = zebra_ns_lookup(NS_DEFAULT); | |
6936 | if (!zns) | |
6937 | return; | |
6938 | ||
6939 | ||
6940 | if (use_json) | |
6941 | json = json_object_new_object(); | |
6942 | ||
6943 | zes.vty = vty; | |
6944 | zes.json = json; | |
6945 | zes.zvrf = zvrf; | |
6946 | ||
6947 | /* Display all L2-VNIs */ | |
6948 | hash_iterate(zvrf->vni_table, (void (*)(struct hash_backet *, | |
6949 | void *))zvni_print_hash_detail, | |
6950 | &zes); | |
6951 | ||
6952 | /* Display all L3-VNIs */ | |
6953 | hash_iterate(zrouter.l3vni_table, | |
6954 | (void (*)(struct hash_backet *, | |
6955 | void *))zl3vni_print_hash_detail, | |
6956 | &zes); | |
6957 | ||
6958 | if (use_json) { | |
6959 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
6960 | json, JSON_C_TO_STRING_PRETTY)); | |
6961 | json_object_free(json); | |
6962 | } | |
6963 | } | |
6964 | ||
6965 | /* | |
6966 | * Handle neighbor delete notification from the kernel (on a VLAN device | |
6967 | * / L3 interface). This may result in either the neighbor getting deleted | |
6968 | * from our database or being re-added to the kernel (if it is a valid | |
6969 | * remote neighbor). | |
6970 | */ | |
6971 | int zebra_vxlan_handle_kernel_neigh_del(struct interface *ifp, | |
6972 | struct interface *link_if, | |
6973 | struct ipaddr *ip) | |
6974 | { | |
6975 | char buf[INET6_ADDRSTRLEN]; | |
6976 | char buf2[ETHER_ADDR_STRLEN]; | |
6977 | zebra_neigh_t *n = NULL; | |
6978 | zebra_vni_t *zvni = NULL; | |
6979 | zebra_mac_t *zmac = NULL; | |
6980 | zebra_l3vni_t *zl3vni = NULL; | |
6981 | ||
6982 | /* check if this is a remote neigh entry corresponding to remote | |
6983 | * next-hop | |
6984 | */ | |
6985 | zl3vni = zl3vni_from_svi(ifp, link_if); | |
6986 | if (zl3vni) | |
6987 | return zl3vni_local_nh_del(zl3vni, ip); | |
6988 | ||
6989 | /* We are only interested in neighbors on an SVI that resides on top | |
6990 | * of a VxLAN bridge. | |
6991 | */ | |
6992 | zvni = zvni_from_svi(ifp, link_if); | |
6993 | if (!zvni) | |
6994 | return 0; | |
6995 | ||
6996 | if (!zvni->vxlan_if) { | |
6997 | zlog_debug( | |
6998 | "VNI %u hash %p doesn't have intf upon local neighbor DEL", | |
6999 | zvni->vni, zvni); | |
7000 | return -1; | |
7001 | } | |
7002 | ||
7003 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7004 | zlog_debug("Del neighbor %s intf %s(%u) -> L2-VNI %u", | |
7005 | ipaddr2str(ip, buf, sizeof(buf)), ifp->name, | |
7006 | ifp->ifindex, zvni->vni); | |
7007 | ||
7008 | /* If entry doesn't exist, nothing to do. */ | |
7009 | n = zvni_neigh_lookup(zvni, ip); | |
7010 | if (!n) | |
7011 | return 0; | |
7012 | ||
7013 | zmac = zvni_mac_lookup(zvni, &n->emac); | |
7014 | if (!zmac) { | |
7015 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7016 | zlog_debug( | |
7017 | "Trying to del a neigh %s without a mac %s on VNI %u", | |
7018 | ipaddr2str(ip, buf, sizeof(buf)), | |
7019 | prefix_mac2str(&n->emac, buf2, sizeof(buf2)), | |
7020 | zvni->vni); | |
7021 | ||
7022 | return 0; | |
7023 | } | |
7024 | ||
7025 | /* If it is a remote entry, the kernel has aged this out or someone has | |
7026 | * deleted it, it needs to be re-installed as Quagga is the owner. | |
7027 | */ | |
7028 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) { | |
7029 | zvni_neigh_install(zvni, n); | |
7030 | return 0; | |
7031 | } | |
7032 | ||
7033 | /* Remove neighbor from BGP. */ | |
7034 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) | |
7035 | zvni_neigh_send_del_to_client(zvni->vni, &n->ip, &n->emac, 0); | |
7036 | ||
7037 | /* Delete this neighbor entry. */ | |
7038 | zvni_neigh_del(zvni, n); | |
7039 | ||
7040 | /* see if the AUTO mac needs to be deleted */ | |
7041 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_AUTO) | |
7042 | && !listcount(zmac->neigh_list)) | |
7043 | zvni_mac_del(zvni, zmac); | |
7044 | ||
7045 | return 0; | |
7046 | } | |
7047 | ||
7048 | /* | |
7049 | * Handle neighbor add or update notification from the kernel (on a VLAN | |
7050 | * device / L3 interface). This is typically for a local neighbor but can | |
7051 | * also be for a remote neighbor (e.g., ageout notification). It could | |
7052 | * also be a "move" scenario. | |
7053 | */ | |
7054 | int zebra_vxlan_handle_kernel_neigh_update(struct interface *ifp, | |
7055 | struct interface *link_if, | |
7056 | struct ipaddr *ip, | |
7057 | struct ethaddr *macaddr, | |
7058 | uint16_t state, | |
7059 | bool is_ext, | |
7060 | bool is_router) | |
7061 | { | |
7062 | char buf[ETHER_ADDR_STRLEN]; | |
7063 | char buf2[INET6_ADDRSTRLEN]; | |
7064 | zebra_vni_t *zvni = NULL; | |
7065 | zebra_l3vni_t *zl3vni = NULL; | |
7066 | ||
7067 | /* check if this is a remote neigh entry corresponding to remote | |
7068 | * next-hop | |
7069 | */ | |
7070 | zl3vni = zl3vni_from_svi(ifp, link_if); | |
7071 | if (zl3vni) | |
7072 | return zl3vni_local_nh_add_update(zl3vni, ip, state); | |
7073 | ||
7074 | /* We are only interested in neighbors on an SVI that resides on top | |
7075 | * of a VxLAN bridge. | |
7076 | */ | |
7077 | zvni = zvni_from_svi(ifp, link_if); | |
7078 | if (!zvni) | |
7079 | return 0; | |
7080 | ||
7081 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7082 | zlog_debug( | |
7083 | "Add/Update neighbor %s MAC %s intf %s(%u) state 0x%x %s %s-> L2-VNI %u", | |
7084 | ipaddr2str(ip, buf2, sizeof(buf2)), | |
7085 | prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name, | |
7086 | ifp->ifindex, state, is_ext ? "ext-learned " : "", | |
7087 | is_router ? "router " : "", | |
7088 | zvni->vni); | |
7089 | ||
7090 | /* Is this about a local neighbor or a remote one? */ | |
7091 | if (!is_ext) | |
7092 | return zvni_local_neigh_update(zvni, ifp, ip, macaddr, | |
7093 | is_router); | |
7094 | ||
7095 | return zvni_remote_neigh_update(zvni, ifp, ip, macaddr, state); | |
7096 | } | |
7097 | ||
7098 | ||
7099 | /* | |
7100 | * Handle message from client to delete a remote MACIP for a VNI. | |
7101 | */ | |
7102 | void zebra_vxlan_remote_macip_del(ZAPI_HANDLER_ARGS) | |
7103 | { | |
7104 | struct stream *s; | |
7105 | vni_t vni; | |
7106 | struct ethaddr macaddr; | |
7107 | struct ipaddr ip; | |
7108 | struct in_addr vtep_ip; | |
7109 | uint16_t l = 0, ipa_len; | |
7110 | char buf[ETHER_ADDR_STRLEN]; | |
7111 | char buf1[INET6_ADDRSTRLEN]; | |
7112 | ||
7113 | memset(&macaddr, 0, sizeof(struct ethaddr)); | |
7114 | memset(&ip, 0, sizeof(struct ipaddr)); | |
7115 | memset(&vtep_ip, 0, sizeof(struct in_addr)); | |
7116 | ||
7117 | s = msg; | |
7118 | ||
7119 | while (l < hdr->length) { | |
7120 | /* Obtain each remote MACIP and process. */ | |
7121 | /* Message contains VNI, followed by MAC followed by IP (if any) | |
7122 | * followed by remote VTEP IP. | |
7123 | */ | |
7124 | memset(&ip, 0, sizeof(ip)); | |
7125 | STREAM_GETL(s, vni); | |
7126 | STREAM_GET(&macaddr.octet, s, ETH_ALEN); | |
7127 | STREAM_GETL(s, ipa_len); | |
7128 | if (ipa_len) { | |
7129 | ip.ipa_type = (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 | |
7130 | : IPADDR_V6; | |
7131 | STREAM_GET(&ip.ip.addr, s, ipa_len); | |
7132 | } | |
7133 | l += 4 + ETH_ALEN + 4 + ipa_len; | |
7134 | STREAM_GET(&vtep_ip.s_addr, s, IPV4_MAX_BYTELEN); | |
7135 | l += IPV4_MAX_BYTELEN; | |
7136 | ||
7137 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7138 | zlog_debug( | |
7139 | "Recv MACIP DEL VNI %u MAC %s%s%s Remote VTEP %s from %s", | |
7140 | vni, | |
7141 | prefix_mac2str(&macaddr, buf, sizeof(buf)), | |
7142 | ipa_len ? " IP " : "", | |
7143 | ipa_len ? | |
7144 | ipaddr2str(&ip, buf1, sizeof(buf1)) : "", | |
7145 | inet_ntoa(vtep_ip), | |
7146 | zebra_route_string(client->proto)); | |
7147 | ||
7148 | process_remote_macip_del(vni, &macaddr, ipa_len, &ip, vtep_ip); | |
7149 | } | |
7150 | ||
7151 | stream_failure: | |
7152 | return; | |
7153 | } | |
7154 | ||
7155 | /* | |
7156 | * Handle message from client to add a remote MACIP for a VNI. This | |
7157 | * could be just the add of a MAC address or the add of a neighbor | |
7158 | * (IP+MAC). | |
7159 | */ | |
7160 | void zebra_vxlan_remote_macip_add(ZAPI_HANDLER_ARGS) | |
7161 | { | |
7162 | struct stream *s; | |
7163 | vni_t vni; | |
7164 | struct ethaddr macaddr; | |
7165 | struct ipaddr ip; | |
7166 | struct in_addr vtep_ip; | |
7167 | uint16_t l = 0, ipa_len; | |
7168 | uint8_t flags = 0; | |
7169 | uint32_t seq; | |
7170 | char buf[ETHER_ADDR_STRLEN]; | |
7171 | char buf1[INET6_ADDRSTRLEN]; | |
7172 | ||
7173 | memset(&macaddr, 0, sizeof(struct ethaddr)); | |
7174 | memset(&ip, 0, sizeof(struct ipaddr)); | |
7175 | memset(&vtep_ip, 0, sizeof(struct in_addr)); | |
7176 | ||
7177 | if (!EVPN_ENABLED(zvrf)) { | |
7178 | zlog_debug("EVPN not enabled, ignoring remote MACIP ADD"); | |
7179 | return; | |
7180 | } | |
7181 | ||
7182 | s = msg; | |
7183 | ||
7184 | while (l < hdr->length) { | |
7185 | /* Obtain each remote MACIP and process. */ | |
7186 | /* Message contains VNI, followed by MAC followed by IP (if any) | |
7187 | * followed by remote VTEP IP. | |
7188 | */ | |
7189 | memset(&ip, 0, sizeof(ip)); | |
7190 | STREAM_GETL(s, vni); | |
7191 | STREAM_GET(&macaddr.octet, s, ETH_ALEN); | |
7192 | STREAM_GETL(s, ipa_len); | |
7193 | if (ipa_len) { | |
7194 | ip.ipa_type = (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 | |
7195 | : IPADDR_V6; | |
7196 | STREAM_GET(&ip.ip.addr, s, ipa_len); | |
7197 | } | |
7198 | l += 4 + ETH_ALEN + 4 + ipa_len; | |
7199 | STREAM_GET(&vtep_ip.s_addr, s, IPV4_MAX_BYTELEN); | |
7200 | l += IPV4_MAX_BYTELEN; | |
7201 | ||
7202 | /* Get flags - sticky mac and/or gateway mac */ | |
7203 | STREAM_GETC(s, flags); | |
7204 | l++; | |
7205 | STREAM_GETL(s, seq); | |
7206 | l += 4; | |
7207 | ||
7208 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7209 | zlog_debug( | |
7210 | "Recv MACIP ADD VNI %u MAC %s%s%s flags 0x%x seq %u VTEP %s from %s", | |
7211 | vni, | |
7212 | prefix_mac2str(&macaddr, buf, sizeof(buf)), | |
7213 | ipa_len ? " IP " : "", | |
7214 | ipa_len ? | |
7215 | ipaddr2str(&ip, buf1, sizeof(buf1)) : "", | |
7216 | flags, seq, inet_ntoa(vtep_ip), | |
7217 | zebra_route_string(client->proto)); | |
7218 | ||
7219 | process_remote_macip_add(vni, &macaddr, ipa_len, &ip, | |
7220 | flags, seq, vtep_ip); | |
7221 | } | |
7222 | ||
7223 | stream_failure: | |
7224 | return; | |
7225 | } | |
7226 | ||
7227 | /* | |
7228 | * Handle notification of MAC add/update over VxLAN. If the kernel is notifying | |
7229 | * us, this must involve a multihoming scenario. Treat this as implicit delete | |
7230 | * of any prior local MAC. | |
7231 | */ | |
7232 | int zebra_vxlan_check_del_local_mac(struct interface *ifp, | |
7233 | struct interface *br_if, | |
7234 | struct ethaddr *macaddr, vlanid_t vid) | |
7235 | { | |
7236 | struct zebra_if *zif; | |
7237 | struct zebra_l2info_vxlan *vxl; | |
7238 | vni_t vni; | |
7239 | zebra_vni_t *zvni; | |
7240 | zebra_mac_t *mac; | |
7241 | char buf[ETHER_ADDR_STRLEN]; | |
7242 | ||
7243 | zif = ifp->info; | |
7244 | assert(zif); | |
7245 | vxl = &zif->l2info.vxl; | |
7246 | vni = vxl->vni; | |
7247 | ||
7248 | /* Check if EVPN is enabled. */ | |
7249 | if (!is_evpn_enabled()) | |
7250 | return 0; | |
7251 | ||
7252 | /* Locate hash entry; it is expected to exist. */ | |
7253 | zvni = zvni_lookup(vni); | |
7254 | if (!zvni) | |
7255 | return 0; | |
7256 | ||
7257 | /* If entry doesn't exist, nothing to do. */ | |
7258 | mac = zvni_mac_lookup(zvni, macaddr); | |
7259 | if (!mac) | |
7260 | return 0; | |
7261 | ||
7262 | /* Is it a local entry? */ | |
7263 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) | |
7264 | return 0; | |
7265 | ||
7266 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7267 | zlog_debug( | |
7268 | "Add/update remote MAC %s intf %s(%u) VNI %u - del local", | |
7269 | prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name, | |
7270 | ifp->ifindex, vni); | |
7271 | ||
7272 | /* Remove MAC from BGP. */ | |
7273 | zvni_mac_send_del_to_client(zvni->vni, macaddr); | |
7274 | ||
7275 | /* | |
7276 | * If there are no neigh associated with the mac delete the mac | |
7277 | * else mark it as AUTO for forward reference | |
7278 | */ | |
7279 | if (!listcount(mac->neigh_list)) { | |
7280 | zvni_mac_del(zvni, mac); | |
7281 | } else { | |
7282 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
7283 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
7284 | } | |
7285 | ||
7286 | return 0; | |
7287 | } | |
7288 | ||
7289 | /* | |
7290 | * Handle remote MAC delete by kernel; readd the remote MAC if we have it. | |
7291 | * This can happen because the remote MAC entries are also added as "dynamic", | |
7292 | * so the kernel can ageout the entry. | |
7293 | */ | |
7294 | int zebra_vxlan_check_readd_remote_mac(struct interface *ifp, | |
7295 | struct interface *br_if, | |
7296 | struct ethaddr *macaddr, vlanid_t vid) | |
7297 | { | |
7298 | struct zebra_if *zif = NULL; | |
7299 | struct zebra_l2info_vxlan *vxl = NULL; | |
7300 | vni_t vni; | |
7301 | zebra_vni_t *zvni = NULL; | |
7302 | zebra_l3vni_t *zl3vni = NULL; | |
7303 | zebra_mac_t *mac = NULL; | |
7304 | char buf[ETHER_ADDR_STRLEN]; | |
7305 | ||
7306 | zif = ifp->info; | |
7307 | assert(zif); | |
7308 | vxl = &zif->l2info.vxl; | |
7309 | vni = vxl->vni; | |
7310 | ||
7311 | /* Check if EVPN is enabled. */ | |
7312 | if (!is_evpn_enabled()) | |
7313 | return 0; | |
7314 | ||
7315 | /* check if this is a remote RMAC and readd simillar to remote macs */ | |
7316 | zl3vni = zl3vni_lookup(vni); | |
7317 | if (zl3vni) | |
7318 | return zebra_vxlan_readd_remote_rmac(zl3vni, macaddr); | |
7319 | ||
7320 | /* Locate hash entry; it is expected to exist. */ | |
7321 | zvni = zvni_lookup(vni); | |
7322 | if (!zvni) | |
7323 | return 0; | |
7324 | ||
7325 | /* If entry doesn't exist, nothing to do. */ | |
7326 | mac = zvni_mac_lookup(zvni, macaddr); | |
7327 | if (!mac) | |
7328 | return 0; | |
7329 | ||
7330 | /* Is it a remote entry? */ | |
7331 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) | |
7332 | return 0; | |
7333 | ||
7334 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7335 | zlog_debug("Del remote MAC %s intf %s(%u) VNI %u - readd", | |
7336 | prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name, | |
7337 | ifp->ifindex, vni); | |
7338 | ||
7339 | zvni_mac_install(zvni, mac); | |
7340 | return 0; | |
7341 | } | |
7342 | ||
7343 | /* | |
7344 | * Handle local MAC delete (on a port or VLAN corresponding to this VNI). | |
7345 | */ | |
7346 | int zebra_vxlan_local_mac_del(struct interface *ifp, struct interface *br_if, | |
7347 | struct ethaddr *macaddr, vlanid_t vid) | |
7348 | { | |
7349 | zebra_vni_t *zvni; | |
7350 | zebra_mac_t *mac; | |
7351 | char buf[ETHER_ADDR_STRLEN]; | |
7352 | ||
7353 | /* We are interested in MACs only on ports or (port, VLAN) that | |
7354 | * map to a VNI. | |
7355 | */ | |
7356 | zvni = zvni_map_vlan(ifp, br_if, vid); | |
7357 | if (!zvni) | |
7358 | return 0; | |
7359 | if (!zvni->vxlan_if) { | |
7360 | zlog_debug( | |
7361 | "VNI %u hash %p doesn't have intf upon local MAC DEL", | |
7362 | zvni->vni, zvni); | |
7363 | return -1; | |
7364 | } | |
7365 | ||
7366 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7367 | zlog_debug("DEL MAC %s intf %s(%u) VID %u -> VNI %u", | |
7368 | prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name, | |
7369 | ifp->ifindex, vid, zvni->vni); | |
7370 | ||
7371 | /* If entry doesn't exist, nothing to do. */ | |
7372 | mac = zvni_mac_lookup(zvni, macaddr); | |
7373 | if (!mac) | |
7374 | return 0; | |
7375 | ||
7376 | /* Is it a local entry? */ | |
7377 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) | |
7378 | return 0; | |
7379 | ||
7380 | /* Update all the neigh entries associated with this mac */ | |
7381 | zvni_process_neigh_on_local_mac_del(zvni, mac); | |
7382 | ||
7383 | /* Remove MAC from BGP. */ | |
7384 | zvni_mac_send_del_to_client(zvni->vni, macaddr); | |
7385 | ||
7386 | /* | |
7387 | * If there are no neigh associated with the mac delete the mac | |
7388 | * else mark it as AUTO for forward reference | |
7389 | */ | |
7390 | if (!listcount(mac->neigh_list)) { | |
7391 | zvni_mac_del(zvni, mac); | |
7392 | } else { | |
7393 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
7394 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
7395 | } | |
7396 | ||
7397 | return 0; | |
7398 | } | |
7399 | ||
7400 | /* | |
7401 | * Handle local MAC add (on a port or VLAN corresponding to this VNI). | |
7402 | */ | |
7403 | int zebra_vxlan_local_mac_add_update(struct interface *ifp, | |
7404 | struct interface *br_if, | |
7405 | struct ethaddr *macaddr, vlanid_t vid, | |
7406 | bool sticky) | |
7407 | { | |
7408 | zebra_vni_t *zvni; | |
7409 | zebra_mac_t *mac; | |
7410 | struct zebra_vrf *zvrf; | |
7411 | char buf[ETHER_ADDR_STRLEN]; | |
7412 | bool mac_sticky = false; | |
7413 | bool inform_client = false; | |
7414 | bool upd_neigh = false; | |
7415 | struct in_addr vtep_ip = {.s_addr = 0}; | |
7416 | ||
7417 | /* We are interested in MACs only on ports or (port, VLAN) that | |
7418 | * map to a VNI. | |
7419 | */ | |
7420 | zvni = zvni_map_vlan(ifp, br_if, vid); | |
7421 | if (!zvni) { | |
7422 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7423 | zlog_debug( | |
7424 | "Add/Update %sMAC %s intf %s(%u) VID %u, could not find VNI", | |
7425 | sticky ? "sticky " : "", | |
7426 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
7427 | ifp->name, ifp->ifindex, vid); | |
7428 | return 0; | |
7429 | } | |
7430 | ||
7431 | if (!zvni->vxlan_if) { | |
7432 | zlog_debug( | |
7433 | "VNI %u hash %p doesn't have intf upon local MAC ADD", | |
7434 | zvni->vni, zvni); | |
7435 | return -1; | |
7436 | } | |
7437 | ||
7438 | zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id); | |
7439 | if (!zvrf) | |
7440 | return -1; | |
7441 | ||
7442 | /* Check if we need to create or update or it is a NO-OP. */ | |
7443 | mac = zvni_mac_lookup(zvni, macaddr); | |
7444 | if (!mac) { | |
7445 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7446 | zlog_debug( | |
7447 | "ADD %sMAC %s intf %s(%u) VID %u -> VNI %u", | |
7448 | sticky ? "sticky " : "", | |
7449 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
7450 | ifp->name, ifp->ifindex, vid, zvni->vni); | |
7451 | ||
7452 | mac = zvni_mac_add(zvni, macaddr); | |
7453 | if (!mac) { | |
7454 | flog_err( | |
7455 | EC_ZEBRA_MAC_ADD_FAILED, | |
7456 | "Failed to add MAC %s intf %s(%u) VID %u VNI %u", | |
7457 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
7458 | ifp->name, ifp->ifindex, vid, zvni->vni); | |
7459 | return -1; | |
7460 | } | |
7461 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
7462 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
7463 | mac->fwd_info.local.vid = vid; | |
7464 | if (sticky) | |
7465 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
7466 | inform_client = true; | |
7467 | ||
7468 | } else { | |
7469 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7470 | zlog_debug( | |
7471 | "UPD %sMAC %s intf %s(%u) VID %u -> VNI %u curFlags 0x%x", | |
7472 | sticky ? "sticky " : "", | |
7473 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
7474 | ifp->name, ifp->ifindex, vid, zvni->vni, | |
7475 | mac->flags); | |
7476 | ||
7477 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
7478 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) | |
7479 | mac_sticky = true; | |
7480 | ||
7481 | /* | |
7482 | * Update any changes and if changes are relevant to | |
7483 | * BGP, note it. | |
7484 | */ | |
7485 | if (mac_sticky == sticky | |
7486 | && mac->fwd_info.local.ifindex == ifp->ifindex | |
7487 | && mac->fwd_info.local.vid == vid) { | |
7488 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7489 | zlog_debug( | |
7490 | "Add/Update %sMAC %s intf %s(%u) VID %u -> VNI %u, " | |
7491 | "entry exists and has not changed ", | |
7492 | sticky ? "sticky " : "", | |
7493 | prefix_mac2str(macaddr, buf, | |
7494 | sizeof(buf)), | |
7495 | ifp->name, ifp->ifindex, vid, | |
7496 | zvni->vni); | |
7497 | return 0; | |
7498 | } | |
7499 | if (mac_sticky != sticky) { | |
7500 | if (sticky) | |
7501 | SET_FLAG(mac->flags, | |
7502 | ZEBRA_MAC_STICKY); | |
7503 | else | |
7504 | UNSET_FLAG(mac->flags, | |
7505 | ZEBRA_MAC_STICKY); | |
7506 | inform_client = true; | |
7507 | } | |
7508 | ||
7509 | memset(&mac->fwd_info, 0, sizeof(mac->fwd_info)); | |
7510 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
7511 | mac->fwd_info.local.vid = vid; | |
7512 | ||
7513 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) || | |
7514 | CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { | |
7515 | bool do_dad = false; | |
7516 | ||
7517 | /* | |
7518 | * MAC has either moved or was "internally" created due | |
7519 | * to a neighbor learn and is now actually learnt. If | |
7520 | * it was learnt as a remote sticky MAC, this is an | |
7521 | * operator error. | |
7522 | */ | |
7523 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) { | |
7524 | flog_warn( | |
7525 | EC_ZEBRA_STICKY_MAC_ALREADY_LEARNT, | |
7526 | "MAC %s already learnt as remote sticky MAC behind VTEP %s VNI %u", | |
7527 | prefix_mac2str(macaddr, buf, | |
7528 | sizeof(buf)), | |
7529 | inet_ntoa(mac->fwd_info.r_vtep_ip), | |
7530 | zvni->vni); | |
7531 | return 0; | |
7532 | } | |
7533 | ||
7534 | /* If an actual move, compute MAC's seq number */ | |
7535 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
7536 | mac->loc_seq = MAX(mac->rem_seq + 1, | |
7537 | mac->loc_seq); | |
7538 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
7539 | /* Trigger DAD for remote MAC */ | |
7540 | do_dad = true; | |
7541 | } | |
7542 | ||
7543 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
7544 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
7545 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
7546 | memset(&mac->fwd_info, 0, sizeof(mac->fwd_info)); | |
7547 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
7548 | mac->fwd_info.local.vid = vid; | |
7549 | if (sticky) | |
7550 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
7551 | else | |
7552 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
7553 | /* | |
7554 | * We have to inform BGP of this MAC as well as process | |
7555 | * all neighbors. | |
7556 | */ | |
7557 | inform_client = true; | |
7558 | upd_neigh = true; | |
7559 | ||
7560 | zebra_vxlan_dup_addr_detect_for_mac(zvrf, mac, vtep_ip, | |
7561 | do_dad, | |
7562 | &inform_client, | |
7563 | true); | |
7564 | } | |
7565 | } | |
7566 | ||
7567 | /* Inform BGP if required. */ | |
7568 | if (inform_client) { | |
7569 | if (zvni_mac_send_add_to_client(zvni->vni, macaddr, | |
7570 | mac->flags, mac->loc_seq)) | |
7571 | return -1; | |
7572 | } | |
7573 | ||
7574 | /* Process all neighbors associated with this MAC, if required. */ | |
7575 | if (upd_neigh) | |
7576 | zvni_process_neigh_on_local_mac_change(zvni, mac, 0); | |
7577 | ||
7578 | return 0; | |
7579 | } | |
7580 | ||
7581 | /* | |
7582 | * Handle message from client to delete a remote VTEP for a VNI. | |
7583 | */ | |
7584 | void zebra_vxlan_remote_vtep_del(ZAPI_HANDLER_ARGS) | |
7585 | { | |
7586 | struct stream *s; | |
7587 | unsigned short l = 0; | |
7588 | vni_t vni; | |
7589 | struct in_addr vtep_ip; | |
7590 | zebra_vni_t *zvni; | |
7591 | zebra_vtep_t *zvtep; | |
7592 | struct interface *ifp; | |
7593 | struct zebra_if *zif; | |
7594 | ||
7595 | if (!is_evpn_enabled()) { | |
7596 | zlog_debug( | |
7597 | "%s: EVPN is not enabled yet we have received a vtep del command", | |
7598 | __PRETTY_FUNCTION__); | |
7599 | return; | |
7600 | } | |
7601 | ||
7602 | if (zvrf_id(zvrf) != VRF_DEFAULT) { | |
7603 | zlog_debug("Recv MACIP DEL for non-default VRF %u", | |
7604 | zvrf_id(zvrf)); | |
7605 | return; | |
7606 | } | |
7607 | ||
7608 | s = msg; | |
7609 | ||
7610 | while (l < hdr->length) { | |
7611 | /* Obtain each remote VTEP and process. */ | |
7612 | STREAM_GETL(s, vni); | |
7613 | l += 4; | |
7614 | STREAM_GET(&vtep_ip.s_addr, s, IPV4_MAX_BYTELEN); | |
7615 | l += IPV4_MAX_BYTELEN; | |
7616 | ||
7617 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7618 | zlog_debug("Recv VTEP_DEL %s VNI %u from %s", | |
7619 | inet_ntoa(vtep_ip), vni, | |
7620 | zebra_route_string(client->proto)); | |
7621 | ||
7622 | /* Locate VNI hash entry - expected to exist. */ | |
7623 | zvni = zvni_lookup(vni); | |
7624 | if (!zvni) { | |
7625 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7626 | zlog_debug( | |
7627 | "Failed to locate VNI hash upon remote VTEP DEL, " | |
7628 | "VNI %u", | |
7629 | vni); | |
7630 | continue; | |
7631 | } | |
7632 | ||
7633 | ifp = zvni->vxlan_if; | |
7634 | if (!ifp) { | |
7635 | zlog_debug( | |
7636 | "VNI %u hash %p doesn't have intf upon remote VTEP DEL", | |
7637 | zvni->vni, zvni); | |
7638 | continue; | |
7639 | } | |
7640 | zif = ifp->info; | |
7641 | ||
7642 | /* If down or not mapped to a bridge, we're done. */ | |
7643 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) | |
7644 | continue; | |
7645 | ||
7646 | /* If the remote VTEP does not exist, there's nothing more to | |
7647 | * do. | |
7648 | * Otherwise, uninstall any remote MACs pointing to this VTEP | |
7649 | * and | |
7650 | * then, the VTEP entry itself and remove it. | |
7651 | */ | |
7652 | zvtep = zvni_vtep_find(zvni, &vtep_ip); | |
7653 | if (!zvtep) | |
7654 | continue; | |
7655 | ||
7656 | zvni_neigh_del_from_vtep(zvni, 1, &vtep_ip); | |
7657 | zvni_mac_del_from_vtep(zvni, 1, &vtep_ip); | |
7658 | zvni_vtep_uninstall(zvni, &vtep_ip); | |
7659 | zvni_vtep_del(zvni, zvtep); | |
7660 | } | |
7661 | ||
7662 | stream_failure: | |
7663 | return; | |
7664 | } | |
7665 | ||
7666 | /* | |
7667 | * Handle message from client to add a remote VTEP for a VNI. | |
7668 | */ | |
7669 | void zebra_vxlan_remote_vtep_add(ZAPI_HANDLER_ARGS) | |
7670 | { | |
7671 | struct stream *s; | |
7672 | unsigned short l = 0; | |
7673 | vni_t vni; | |
7674 | struct in_addr vtep_ip; | |
7675 | zebra_vni_t *zvni; | |
7676 | struct interface *ifp; | |
7677 | struct zebra_if *zif; | |
7678 | ||
7679 | if (!is_evpn_enabled()) { | |
7680 | zlog_debug( | |
7681 | "%s: EVPN not enabled yet we received a vtep_add zapi call", | |
7682 | __PRETTY_FUNCTION__); | |
7683 | return; | |
7684 | } | |
7685 | ||
7686 | if (zvrf_id(zvrf) != VRF_DEFAULT) { | |
7687 | zlog_debug("Recv MACIP ADD for non-default VRF %u", | |
7688 | zvrf_id(zvrf)); | |
7689 | return; | |
7690 | } | |
7691 | ||
7692 | s = msg; | |
7693 | ||
7694 | while (l < hdr->length) { | |
7695 | /* Obtain each remote VTEP and process. */ | |
7696 | STREAM_GETL(s, vni); | |
7697 | l += 4; | |
7698 | STREAM_GET(&vtep_ip.s_addr, s, IPV4_MAX_BYTELEN); | |
7699 | l += IPV4_MAX_BYTELEN; | |
7700 | ||
7701 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7702 | zlog_debug("Recv VTEP_ADD %s VNI %u from %s", | |
7703 | inet_ntoa(vtep_ip), vni, | |
7704 | zebra_route_string(client->proto)); | |
7705 | ||
7706 | /* Locate VNI hash entry - expected to exist. */ | |
7707 | zvni = zvni_lookup(vni); | |
7708 | if (!zvni) { | |
7709 | flog_err( | |
7710 | EC_ZEBRA_VTEP_ADD_FAILED, | |
7711 | "Failed to locate VNI hash upon remote VTEP ADD, VNI %u", | |
7712 | vni); | |
7713 | continue; | |
7714 | } | |
7715 | ||
7716 | ifp = zvni->vxlan_if; | |
7717 | if (!ifp) { | |
7718 | flog_err( | |
7719 | EC_ZEBRA_VTEP_ADD_FAILED, | |
7720 | "VNI %u hash %p doesn't have intf upon remote VTEP ADD", | |
7721 | zvni->vni, zvni); | |
7722 | continue; | |
7723 | } | |
7724 | ||
7725 | zif = ifp->info; | |
7726 | ||
7727 | /* If down or not mapped to a bridge, we're done. */ | |
7728 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) | |
7729 | continue; | |
7730 | ||
7731 | /* If the remote VTEP already exists, | |
7732 | there's nothing more to do. */ | |
7733 | if (zvni_vtep_find(zvni, &vtep_ip)) | |
7734 | continue; | |
7735 | ||
7736 | if (zvni_vtep_add(zvni, &vtep_ip) == NULL) { | |
7737 | flog_err(EC_ZEBRA_VTEP_ADD_FAILED, | |
7738 | "Failed to add remote VTEP, VNI %u zvni %p", | |
7739 | vni, zvni); | |
7740 | continue; | |
7741 | } | |
7742 | ||
7743 | zvni_vtep_install(zvni, &vtep_ip); | |
7744 | } | |
7745 | ||
7746 | stream_failure: | |
7747 | return; | |
7748 | } | |
7749 | ||
7750 | /* | |
7751 | * Add/Del gateway macip to evpn | |
7752 | * g/w can be: | |
7753 | * 1. SVI interface on a vlan aware bridge | |
7754 | * 2. SVI interface on a vlan unaware bridge | |
7755 | * 3. vrr interface (MACVLAN) associated to a SVI | |
7756 | * We advertise macip routes for an interface if it is associated to VxLan vlan | |
7757 | */ | |
7758 | int zebra_vxlan_add_del_gw_macip(struct interface *ifp, struct prefix *p, | |
7759 | int add) | |
7760 | { | |
7761 | struct ipaddr ip; | |
7762 | struct ethaddr macaddr; | |
7763 | zebra_vni_t *zvni = NULL; | |
7764 | ||
7765 | memset(&ip, 0, sizeof(struct ipaddr)); | |
7766 | memset(&macaddr, 0, sizeof(struct ethaddr)); | |
7767 | ||
7768 | /* Check if EVPN is enabled. */ | |
7769 | if (!is_evpn_enabled()) | |
7770 | return 0; | |
7771 | ||
7772 | if (IS_ZEBRA_IF_MACVLAN(ifp)) { | |
7773 | struct interface *svi_if = | |
7774 | NULL; /* SVI corresponding to the MACVLAN */ | |
7775 | struct zebra_if *ifp_zif = | |
7776 | NULL; /* Zebra daemon specific info for MACVLAN */ | |
7777 | struct zebra_if *svi_if_zif = | |
7778 | NULL; /* Zebra daemon specific info for SVI*/ | |
7779 | ||
7780 | ifp_zif = ifp->info; | |
7781 | if (!ifp_zif) | |
7782 | return -1; | |
7783 | ||
7784 | /* | |
7785 | * for a MACVLAN interface the link represents the svi_if | |
7786 | */ | |
7787 | svi_if = if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT), | |
7788 | ifp_zif->link_ifindex); | |
7789 | if (!svi_if) { | |
7790 | zlog_debug("MACVLAN %s(%u) without link information", | |
7791 | ifp->name, ifp->ifindex); | |
7792 | return -1; | |
7793 | } | |
7794 | ||
7795 | if (IS_ZEBRA_IF_VLAN(svi_if)) { | |
7796 | /* | |
7797 | * If it is a vlan aware bridge then the link gives the | |
7798 | * bridge information | |
7799 | */ | |
7800 | struct interface *svi_if_link = NULL; | |
7801 | ||
7802 | svi_if_zif = svi_if->info; | |
7803 | if (svi_if_zif) { | |
7804 | svi_if_link = if_lookup_by_index_per_ns( | |
7805 | zebra_ns_lookup(NS_DEFAULT), | |
7806 | svi_if_zif->link_ifindex); | |
7807 | zvni = zvni_from_svi(svi_if, svi_if_link); | |
7808 | } | |
7809 | } else if (IS_ZEBRA_IF_BRIDGE(svi_if)) { | |
7810 | /* | |
7811 | * If it is a vlan unaware bridge then svi is the bridge | |
7812 | * itself | |
7813 | */ | |
7814 | zvni = zvni_from_svi(svi_if, svi_if); | |
7815 | } | |
7816 | } else if (IS_ZEBRA_IF_VLAN(ifp)) { | |
7817 | struct zebra_if *svi_if_zif = | |
7818 | NULL; /* Zebra daemon specific info for SVI */ | |
7819 | struct interface *svi_if_link = | |
7820 | NULL; /* link info for the SVI = bridge info */ | |
7821 | ||
7822 | svi_if_zif = ifp->info; | |
7823 | if (svi_if_zif) { | |
7824 | svi_if_link = if_lookup_by_index_per_ns( | |
7825 | zebra_ns_lookup(NS_DEFAULT), | |
7826 | svi_if_zif->link_ifindex); | |
7827 | if (svi_if_link) | |
7828 | zvni = zvni_from_svi(ifp, svi_if_link); | |
7829 | } | |
7830 | } else if (IS_ZEBRA_IF_BRIDGE(ifp)) { | |
7831 | zvni = zvni_from_svi(ifp, ifp); | |
7832 | } | |
7833 | ||
7834 | if (!zvni) | |
7835 | return 0; | |
7836 | ||
7837 | if (!zvni->vxlan_if) { | |
7838 | zlog_debug("VNI %u hash %p doesn't have intf upon MACVLAN up", | |
7839 | zvni->vni, zvni); | |
7840 | return -1; | |
7841 | } | |
7842 | ||
7843 | ||
7844 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
7845 | ||
7846 | if (p->family == AF_INET) { | |
7847 | ip.ipa_type = IPADDR_V4; | |
7848 | memcpy(&(ip.ipaddr_v4), &(p->u.prefix4), | |
7849 | sizeof(struct in_addr)); | |
7850 | } else if (p->family == AF_INET6) { | |
7851 | ip.ipa_type = IPADDR_V6; | |
7852 | memcpy(&(ip.ipaddr_v6), &(p->u.prefix6), | |
7853 | sizeof(struct in6_addr)); | |
7854 | } | |
7855 | ||
7856 | ||
7857 | if (add) | |
7858 | zvni_gw_macip_add(ifp, zvni, &macaddr, &ip); | |
7859 | else | |
7860 | zvni_gw_macip_del(ifp, zvni, &ip); | |
7861 | ||
7862 | return 0; | |
7863 | } | |
7864 | ||
7865 | /* | |
7866 | * Handle SVI interface going down. | |
7867 | * SVI can be associated to either L3-VNI or L2-VNI. | |
7868 | * For L2-VNI: At this point, this is a NOP since | |
7869 | * the kernel deletes the neighbor entries on this SVI (if any). | |
7870 | * We only need to update the vrf corresponding to zvni. | |
7871 | * For L3-VNI: L3-VNI is operationally down, update mac-ip routes and delete | |
7872 | * from bgp | |
7873 | */ | |
7874 | int zebra_vxlan_svi_down(struct interface *ifp, struct interface *link_if) | |
7875 | { | |
7876 | zebra_l3vni_t *zl3vni = NULL; | |
7877 | ||
7878 | zl3vni = zl3vni_from_svi(ifp, link_if); | |
7879 | if (zl3vni) { | |
7880 | ||
7881 | /* process l3-vni down */ | |
7882 | zebra_vxlan_process_l3vni_oper_down(zl3vni); | |
7883 | ||
7884 | /* remove association with svi-if */ | |
7885 | zl3vni->svi_if = NULL; | |
7886 | } else { | |
7887 | zebra_vni_t *zvni = NULL; | |
7888 | ||
7889 | /* since we dont have svi corresponding to zvni, we associate it | |
7890 | * to default vrf. Note: the corresponding neigh entries on the | |
7891 | * SVI would have already been deleted */ | |
7892 | zvni = zvni_from_svi(ifp, link_if); | |
7893 | if (zvni) { | |
7894 | zvni->vrf_id = VRF_DEFAULT; | |
7895 | ||
7896 | /* update the tenant vrf in BGP */ | |
7897 | zvni_send_add_to_client(zvni); | |
7898 | } | |
7899 | } | |
7900 | return 0; | |
7901 | } | |
7902 | ||
7903 | /* | |
7904 | * Handle SVI interface coming up. | |
7905 | * SVI can be associated to L3-VNI (l3vni vxlan interface) or L2-VNI (l2-vni | |
7906 | * vxlan intf). | |
7907 | * For L2-VNI: we need to install any remote neighbors entried (used for | |
7908 | * apr-suppression) | |
7909 | * For L3-VNI: SVI will be used to get the rmac to be used with L3-VNI | |
7910 | */ | |
7911 | int zebra_vxlan_svi_up(struct interface *ifp, struct interface *link_if) | |
7912 | { | |
7913 | zebra_vni_t *zvni = NULL; | |
7914 | zebra_l3vni_t *zl3vni = NULL; | |
7915 | ||
7916 | zl3vni = zl3vni_from_svi(ifp, link_if); | |
7917 | if (zl3vni) { | |
7918 | ||
7919 | /* associate with svi */ | |
7920 | zl3vni->svi_if = ifp; | |
7921 | ||
7922 | /* process oper-up */ | |
7923 | if (is_l3vni_oper_up(zl3vni)) | |
7924 | zebra_vxlan_process_l3vni_oper_up(zl3vni); | |
7925 | } else { | |
7926 | ||
7927 | /* process SVI up for l2-vni */ | |
7928 | struct neigh_walk_ctx n_wctx; | |
7929 | ||
7930 | zvni = zvni_from_svi(ifp, link_if); | |
7931 | if (!zvni) | |
7932 | return 0; | |
7933 | ||
7934 | if (!zvni->vxlan_if) { | |
7935 | zlog_debug( | |
7936 | "VNI %u hash %p doesn't have intf upon SVI up", | |
7937 | zvni->vni, zvni); | |
7938 | return -1; | |
7939 | } | |
7940 | ||
7941 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7942 | zlog_debug( | |
7943 | "SVI %s(%u) VNI %u VRF %s is UP, installing neighbors", | |
7944 | ifp->name, ifp->ifindex, zvni->vni, | |
7945 | vrf_id_to_name(ifp->vrf_id)); | |
7946 | ||
7947 | /* update the vrf information for l2-vni and inform bgp */ | |
7948 | zvni->vrf_id = ifp->vrf_id; | |
7949 | zvni_send_add_to_client(zvni); | |
7950 | ||
7951 | /* Install any remote neighbors for this VNI. */ | |
7952 | memset(&n_wctx, 0, sizeof(struct neigh_walk_ctx)); | |
7953 | n_wctx.zvni = zvni; | |
7954 | hash_iterate(zvni->neigh_table, zvni_install_neigh_hash, | |
7955 | &n_wctx); | |
7956 | } | |
7957 | ||
7958 | return 0; | |
7959 | } | |
7960 | ||
7961 | /* | |
7962 | * Handle VxLAN interface down | |
7963 | */ | |
7964 | int zebra_vxlan_if_down(struct interface *ifp) | |
7965 | { | |
7966 | vni_t vni; | |
7967 | struct zebra_if *zif = NULL; | |
7968 | struct zebra_l2info_vxlan *vxl = NULL; | |
7969 | zebra_l3vni_t *zl3vni = NULL; | |
7970 | zebra_vni_t *zvni; | |
7971 | ||
7972 | /* Check if EVPN is enabled. */ | |
7973 | if (!is_evpn_enabled()) | |
7974 | return 0; | |
7975 | ||
7976 | zif = ifp->info; | |
7977 | assert(zif); | |
7978 | vxl = &zif->l2info.vxl; | |
7979 | vni = vxl->vni; | |
7980 | ||
7981 | zl3vni = zl3vni_lookup(vni); | |
7982 | if (zl3vni) { | |
7983 | /* process-if-down for l3-vni */ | |
7984 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7985 | zlog_debug("Intf %s(%u) L3-VNI %u is DOWN", ifp->name, | |
7986 | ifp->ifindex, vni); | |
7987 | ||
7988 | zebra_vxlan_process_l3vni_oper_down(zl3vni); | |
7989 | } else { | |
7990 | /* process if-down for l2-vni */ | |
7991 | if (IS_ZEBRA_DEBUG_VXLAN) | |
7992 | zlog_debug("Intf %s(%u) L2-VNI %u is DOWN", ifp->name, | |
7993 | ifp->ifindex, vni); | |
7994 | ||
7995 | /* Locate hash entry; it is expected to exist. */ | |
7996 | zvni = zvni_lookup(vni); | |
7997 | if (!zvni) { | |
7998 | zlog_debug( | |
7999 | "Failed to locate VNI hash at DOWN, IF %s(%u) VNI %u", | |
8000 | ifp->name, ifp->ifindex, vni); | |
8001 | return -1; | |
8002 | } | |
8003 | ||
8004 | assert(zvni->vxlan_if == ifp); | |
8005 | ||
8006 | /* Delete this VNI from BGP. */ | |
8007 | zvni_send_del_to_client(zvni->vni); | |
8008 | ||
8009 | /* Free up all neighbors and MACs, if any. */ | |
8010 | zvni_neigh_del_all(zvni, 1, 0, DEL_ALL_NEIGH); | |
8011 | zvni_mac_del_all(zvni, 1, 0, DEL_ALL_MAC); | |
8012 | ||
8013 | /* Free up all remote VTEPs, if any. */ | |
8014 | zvni_vtep_del_all(zvni, 1); | |
8015 | } | |
8016 | return 0; | |
8017 | } | |
8018 | ||
8019 | /* | |
8020 | * Handle VxLAN interface up - update BGP if required. | |
8021 | */ | |
8022 | int zebra_vxlan_if_up(struct interface *ifp) | |
8023 | { | |
8024 | vni_t vni; | |
8025 | struct zebra_if *zif = NULL; | |
8026 | struct zebra_l2info_vxlan *vxl = NULL; | |
8027 | zebra_vni_t *zvni = NULL; | |
8028 | zebra_l3vni_t *zl3vni = NULL; | |
8029 | ||
8030 | /* Check if EVPN is enabled. */ | |
8031 | if (!is_evpn_enabled()) | |
8032 | return 0; | |
8033 | ||
8034 | zif = ifp->info; | |
8035 | assert(zif); | |
8036 | vxl = &zif->l2info.vxl; | |
8037 | vni = vxl->vni; | |
8038 | ||
8039 | zl3vni = zl3vni_lookup(vni); | |
8040 | if (zl3vni) { | |
8041 | ||
8042 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8043 | zlog_debug("Intf %s(%u) L3-VNI %u is UP", ifp->name, | |
8044 | ifp->ifindex, vni); | |
8045 | ||
8046 | /* we need to associate with SVI, if any, we can associate with | |
8047 | * svi-if only after association with vxlan-intf is complete | |
8048 | */ | |
8049 | zl3vni->svi_if = zl3vni_map_to_svi_if(zl3vni); | |
8050 | ||
8051 | if (is_l3vni_oper_up(zl3vni)) | |
8052 | zebra_vxlan_process_l3vni_oper_up(zl3vni); | |
8053 | } else { | |
8054 | /* Handle L2-VNI add */ | |
8055 | struct interface *vlan_if = NULL; | |
8056 | ||
8057 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8058 | zlog_debug("Intf %s(%u) L2-VNI %u is UP", ifp->name, | |
8059 | ifp->ifindex, vni); | |
8060 | ||
8061 | /* Locate hash entry; it is expected to exist. */ | |
8062 | zvni = zvni_lookup(vni); | |
8063 | if (!zvni) { | |
8064 | zlog_debug( | |
8065 | "Failed to locate VNI hash at UP, IF %s(%u) VNI %u", | |
8066 | ifp->name, ifp->ifindex, vni); | |
8067 | return -1; | |
8068 | } | |
8069 | ||
8070 | assert(zvni->vxlan_if == ifp); | |
8071 | vlan_if = zvni_map_to_svi(vxl->access_vlan, | |
8072 | zif->brslave_info.br_if); | |
8073 | if (vlan_if) { | |
8074 | zvni->vrf_id = vlan_if->vrf_id; | |
8075 | zl3vni = zl3vni_from_vrf(vlan_if->vrf_id); | |
8076 | if (zl3vni) | |
8077 | listnode_add_sort(zl3vni->l2vnis, zvni); | |
8078 | } | |
8079 | ||
8080 | /* If part of a bridge, inform BGP about this VNI. */ | |
8081 | /* Also, read and populate local MACs and neighbors. */ | |
8082 | if (zif->brslave_info.br_if) { | |
8083 | zvni_send_add_to_client(zvni); | |
8084 | zvni_read_mac_neigh(zvni, ifp); | |
8085 | } | |
8086 | } | |
8087 | ||
8088 | return 0; | |
8089 | } | |
8090 | ||
8091 | /* | |
8092 | * Handle VxLAN interface delete. Locate and remove entry in hash table | |
8093 | * and update BGP, if required. | |
8094 | */ | |
8095 | int zebra_vxlan_if_del(struct interface *ifp) | |
8096 | { | |
8097 | vni_t vni; | |
8098 | struct zebra_if *zif = NULL; | |
8099 | struct zebra_l2info_vxlan *vxl = NULL; | |
8100 | zebra_vni_t *zvni = NULL; | |
8101 | zebra_l3vni_t *zl3vni = NULL; | |
8102 | ||
8103 | /* Check if EVPN is enabled. */ | |
8104 | if (!is_evpn_enabled()) | |
8105 | return 0; | |
8106 | ||
8107 | zif = ifp->info; | |
8108 | assert(zif); | |
8109 | vxl = &zif->l2info.vxl; | |
8110 | vni = vxl->vni; | |
8111 | ||
8112 | zl3vni = zl3vni_lookup(vni); | |
8113 | if (zl3vni) { | |
8114 | ||
8115 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8116 | zlog_debug("Del L3-VNI %u intf %s(%u)", vni, ifp->name, | |
8117 | ifp->ifindex); | |
8118 | ||
8119 | /* process oper-down for l3-vni */ | |
8120 | zebra_vxlan_process_l3vni_oper_down(zl3vni); | |
8121 | ||
8122 | /* remove the association with vxlan_if */ | |
8123 | memset(&zl3vni->local_vtep_ip, 0, sizeof(struct in_addr)); | |
8124 | zl3vni->vxlan_if = NULL; | |
8125 | } else { | |
8126 | ||
8127 | /* process if-del for l2-vni*/ | |
8128 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8129 | zlog_debug("Del L2-VNI %u intf %s(%u)", vni, ifp->name, | |
8130 | ifp->ifindex); | |
8131 | ||
8132 | /* Locate hash entry; it is expected to exist. */ | |
8133 | zvni = zvni_lookup(vni); | |
8134 | if (!zvni) { | |
8135 | zlog_debug( | |
8136 | "Failed to locate VNI hash at del, IF %s(%u) VNI %u", | |
8137 | ifp->name, ifp->ifindex, vni); | |
8138 | return 0; | |
8139 | } | |
8140 | ||
8141 | /* remove from l3-vni list */ | |
8142 | zl3vni = zl3vni_from_vrf(zvni->vrf_id); | |
8143 | if (zl3vni) | |
8144 | listnode_delete(zl3vni->l2vnis, zvni); | |
8145 | ||
8146 | /* Delete VNI from BGP. */ | |
8147 | zvni_send_del_to_client(zvni->vni); | |
8148 | ||
8149 | /* Free up all neighbors and MAC, if any. */ | |
8150 | zvni_neigh_del_all(zvni, 0, 0, DEL_ALL_NEIGH); | |
8151 | zvni_mac_del_all(zvni, 0, 0, DEL_ALL_MAC); | |
8152 | ||
8153 | /* Free up all remote VTEPs, if any. */ | |
8154 | zvni_vtep_del_all(zvni, 0); | |
8155 | ||
8156 | /* Delete the hash entry. */ | |
8157 | if (zvni_del(zvni)) { | |
8158 | flog_err(EC_ZEBRA_VNI_DEL_FAILED, | |
8159 | "Failed to del VNI hash %p, IF %s(%u) VNI %u", | |
8160 | zvni, ifp->name, ifp->ifindex, zvni->vni); | |
8161 | return -1; | |
8162 | } | |
8163 | } | |
8164 | return 0; | |
8165 | } | |
8166 | ||
8167 | /* | |
8168 | * Handle VxLAN interface update - change to tunnel IP, master or VLAN. | |
8169 | */ | |
8170 | int zebra_vxlan_if_update(struct interface *ifp, uint16_t chgflags) | |
8171 | { | |
8172 | vni_t vni; | |
8173 | struct zebra_if *zif = NULL; | |
8174 | struct zebra_l2info_vxlan *vxl = NULL; | |
8175 | zebra_vni_t *zvni = NULL; | |
8176 | zebra_l3vni_t *zl3vni = NULL; | |
8177 | ||
8178 | /* Check if EVPN is enabled. */ | |
8179 | if (!is_evpn_enabled()) | |
8180 | return 0; | |
8181 | ||
8182 | zif = ifp->info; | |
8183 | assert(zif); | |
8184 | vxl = &zif->l2info.vxl; | |
8185 | vni = vxl->vni; | |
8186 | ||
8187 | zl3vni = zl3vni_lookup(vni); | |
8188 | if (zl3vni) { | |
8189 | ||
8190 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8191 | zlog_debug( | |
8192 | "Update L3-VNI %u intf %s(%u) VLAN %u local IP %s master %u chg 0x%x", | |
8193 | vni, ifp->name, ifp->ifindex, vxl->access_vlan, | |
8194 | inet_ntoa(vxl->vtep_ip), | |
8195 | zif->brslave_info.bridge_ifindex, chgflags); | |
8196 | ||
8197 | /* Removed from bridge? Cleanup and return */ | |
8198 | if ((chgflags & ZEBRA_VXLIF_MASTER_CHANGE) | |
8199 | && (zif->brslave_info.bridge_ifindex == IFINDEX_INTERNAL)) { | |
8200 | zebra_vxlan_process_l3vni_oper_down(zl3vni); | |
8201 | return 0; | |
8202 | } | |
8203 | ||
8204 | /* access-vlan change - process oper down, associate with new | |
8205 | * svi_if and then process oper up again | |
8206 | */ | |
8207 | if (chgflags & ZEBRA_VXLIF_VLAN_CHANGE) { | |
8208 | if (if_is_operative(ifp)) { | |
8209 | zebra_vxlan_process_l3vni_oper_down(zl3vni); | |
8210 | zl3vni->svi_if = NULL; | |
8211 | zl3vni->svi_if = zl3vni_map_to_svi_if(zl3vni); | |
8212 | zl3vni->local_vtep_ip = vxl->vtep_ip; | |
8213 | if (is_l3vni_oper_up(zl3vni)) | |
8214 | zebra_vxlan_process_l3vni_oper_up( | |
8215 | zl3vni); | |
8216 | } | |
8217 | } | |
8218 | ||
8219 | /* | |
8220 | * local-ip change - process oper down, associate with new | |
8221 | * local-ip and then process oper up again | |
8222 | */ | |
8223 | if (chgflags & ZEBRA_VXLIF_LOCAL_IP_CHANGE) { | |
8224 | if (if_is_operative(ifp)) { | |
8225 | zebra_vxlan_process_l3vni_oper_down(zl3vni); | |
8226 | zl3vni->local_vtep_ip = vxl->vtep_ip; | |
8227 | if (is_l3vni_oper_up(zl3vni)) | |
8228 | zebra_vxlan_process_l3vni_oper_up( | |
8229 | zl3vni); | |
8230 | } | |
8231 | } | |
8232 | ||
8233 | /* Update local tunnel IP. */ | |
8234 | zl3vni->local_vtep_ip = vxl->vtep_ip; | |
8235 | ||
8236 | /* if we have a valid new master, process l3-vni oper up */ | |
8237 | if (chgflags & ZEBRA_VXLIF_MASTER_CHANGE) { | |
8238 | if (if_is_operative(ifp) && is_l3vni_oper_up(zl3vni)) | |
8239 | zebra_vxlan_process_l3vni_oper_up(zl3vni); | |
8240 | } | |
8241 | } else { | |
8242 | ||
8243 | /* Update VNI hash. */ | |
8244 | zvni = zvni_lookup(vni); | |
8245 | if (!zvni) { | |
8246 | zlog_debug( | |
8247 | "Failed to find L2-VNI hash on update, IF %s(%u) VNI %u", | |
8248 | ifp->name, ifp->ifindex, vni); | |
8249 | return -1; | |
8250 | } | |
8251 | ||
8252 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8253 | zlog_debug( | |
8254 | "Update L2-VNI %u intf %s(%u) VLAN %u local IP %s master %u chg 0x%x", | |
8255 | vni, ifp->name, ifp->ifindex, vxl->access_vlan, | |
8256 | inet_ntoa(vxl->vtep_ip), | |
8257 | zif->brslave_info.bridge_ifindex, chgflags); | |
8258 | ||
8259 | /* Removed from bridge? Cleanup and return */ | |
8260 | if ((chgflags & ZEBRA_VXLIF_MASTER_CHANGE) | |
8261 | && (zif->brslave_info.bridge_ifindex == IFINDEX_INTERNAL)) { | |
8262 | /* Delete from client, remove all remote VTEPs */ | |
8263 | /* Also, free up all MACs and neighbors. */ | |
8264 | zvni_send_del_to_client(zvni->vni); | |
8265 | zvni_neigh_del_all(zvni, 1, 0, DEL_ALL_NEIGH); | |
8266 | zvni_mac_del_all(zvni, 1, 0, DEL_ALL_MAC); | |
8267 | zvni_vtep_del_all(zvni, 1); | |
8268 | return 0; | |
8269 | } | |
8270 | ||
8271 | /* Handle other changes. */ | |
8272 | if (chgflags & ZEBRA_VXLIF_VLAN_CHANGE) { | |
8273 | /* Remove all existing local neigh and MACs for this VNI | |
8274 | * (including from BGP) | |
8275 | */ | |
8276 | zvni_neigh_del_all(zvni, 0, 1, DEL_LOCAL_MAC); | |
8277 | zvni_mac_del_all(zvni, 0, 1, DEL_LOCAL_MAC); | |
8278 | } | |
8279 | ||
8280 | zvni->local_vtep_ip = vxl->vtep_ip; | |
8281 | zvni->vxlan_if = ifp; | |
8282 | ||
8283 | /* Take further actions needed. | |
8284 | * Note that if we are here, there is a change of interest. | |
8285 | */ | |
8286 | /* If down or not mapped to a bridge, we're done. */ | |
8287 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) | |
8288 | return 0; | |
8289 | ||
8290 | /* Inform BGP, if there is a change of interest. */ | |
8291 | if (chgflags | |
8292 | & (ZEBRA_VXLIF_MASTER_CHANGE | ZEBRA_VXLIF_LOCAL_IP_CHANGE)) | |
8293 | zvni_send_add_to_client(zvni); | |
8294 | ||
8295 | /* If there is a valid new master or a VLAN mapping change, | |
8296 | * read and populate local MACs and neighbors. | |
8297 | * Also, reinstall any remote MACs and neighbors | |
8298 | * for this VNI (based on new VLAN). | |
8299 | */ | |
8300 | if (chgflags & ZEBRA_VXLIF_MASTER_CHANGE) | |
8301 | zvni_read_mac_neigh(zvni, ifp); | |
8302 | else if (chgflags & ZEBRA_VXLIF_VLAN_CHANGE) { | |
8303 | struct mac_walk_ctx m_wctx; | |
8304 | struct neigh_walk_ctx n_wctx; | |
8305 | ||
8306 | zvni_read_mac_neigh(zvni, ifp); | |
8307 | ||
8308 | memset(&m_wctx, 0, sizeof(struct mac_walk_ctx)); | |
8309 | m_wctx.zvni = zvni; | |
8310 | hash_iterate(zvni->mac_table, zvni_install_mac_hash, | |
8311 | &m_wctx); | |
8312 | ||
8313 | memset(&n_wctx, 0, sizeof(struct neigh_walk_ctx)); | |
8314 | n_wctx.zvni = zvni; | |
8315 | hash_iterate(zvni->neigh_table, zvni_install_neigh_hash, | |
8316 | &n_wctx); | |
8317 | } | |
8318 | } | |
8319 | ||
8320 | return 0; | |
8321 | } | |
8322 | ||
8323 | /* | |
8324 | * Handle VxLAN interface add. | |
8325 | */ | |
8326 | int zebra_vxlan_if_add(struct interface *ifp) | |
8327 | { | |
8328 | vni_t vni; | |
8329 | struct zebra_if *zif = NULL; | |
8330 | struct zebra_l2info_vxlan *vxl = NULL; | |
8331 | zebra_vni_t *zvni = NULL; | |
8332 | zebra_l3vni_t *zl3vni = NULL; | |
8333 | ||
8334 | /* Check if EVPN is enabled. */ | |
8335 | if (!is_evpn_enabled()) | |
8336 | return 0; | |
8337 | ||
8338 | zif = ifp->info; | |
8339 | assert(zif); | |
8340 | vxl = &zif->l2info.vxl; | |
8341 | vni = vxl->vni; | |
8342 | ||
8343 | zl3vni = zl3vni_lookup(vni); | |
8344 | if (zl3vni) { | |
8345 | ||
8346 | /* process if-add for l3-vni*/ | |
8347 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8348 | zlog_debug( | |
8349 | "Add L3-VNI %u intf %s(%u) VLAN %u local IP %s master %u", | |
8350 | vni, ifp->name, ifp->ifindex, vxl->access_vlan, | |
8351 | inet_ntoa(vxl->vtep_ip), | |
8352 | zif->brslave_info.bridge_ifindex); | |
8353 | ||
8354 | /* associate with vxlan_if */ | |
8355 | zl3vni->local_vtep_ip = vxl->vtep_ip; | |
8356 | zl3vni->vxlan_if = ifp; | |
8357 | ||
8358 | /* Associate with SVI, if any. We can associate with svi-if only | |
8359 | * after association with vxlan_if is complete */ | |
8360 | zl3vni->svi_if = zl3vni_map_to_svi_if(zl3vni); | |
8361 | ||
8362 | if (is_l3vni_oper_up(zl3vni)) | |
8363 | zebra_vxlan_process_l3vni_oper_up(zl3vni); | |
8364 | } else { | |
8365 | ||
8366 | /* process if-add for l2-vni */ | |
8367 | struct interface *vlan_if = NULL; | |
8368 | ||
8369 | /* Create or update VNI hash. */ | |
8370 | zvni = zvni_lookup(vni); | |
8371 | if (!zvni) { | |
8372 | zvni = zvni_add(vni); | |
8373 | if (!zvni) { | |
8374 | flog_err( | |
8375 | EC_ZEBRA_VNI_ADD_FAILED, | |
8376 | "Failed to add VNI hash, IF %s(%u) VNI %u", | |
8377 | ifp->name, ifp->ifindex, vni); | |
8378 | return -1; | |
8379 | } | |
8380 | } | |
8381 | ||
8382 | zvni->local_vtep_ip = vxl->vtep_ip; | |
8383 | zvni->vxlan_if = ifp; | |
8384 | vlan_if = zvni_map_to_svi(vxl->access_vlan, | |
8385 | zif->brslave_info.br_if); | |
8386 | if (vlan_if) { | |
8387 | zvni->vrf_id = vlan_if->vrf_id; | |
8388 | zl3vni = zl3vni_from_vrf(vlan_if->vrf_id); | |
8389 | if (zl3vni) | |
8390 | listnode_add_sort(zl3vni->l2vnis, zvni); | |
8391 | } | |
8392 | ||
8393 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8394 | zlog_debug( | |
8395 | "Add L2-VNI %u VRF %s intf %s(%u) VLAN %u local IP %s master %u", | |
8396 | vni, | |
8397 | vlan_if ? vrf_id_to_name(vlan_if->vrf_id) | |
8398 | : "Default", | |
8399 | ifp->name, ifp->ifindex, vxl->access_vlan, | |
8400 | inet_ntoa(vxl->vtep_ip), | |
8401 | zif->brslave_info.bridge_ifindex); | |
8402 | ||
8403 | /* If down or not mapped to a bridge, we're done. */ | |
8404 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) | |
8405 | return 0; | |
8406 | ||
8407 | /* Inform BGP */ | |
8408 | zvni_send_add_to_client(zvni); | |
8409 | ||
8410 | /* Read and populate local MACs and neighbors */ | |
8411 | zvni_read_mac_neigh(zvni, ifp); | |
8412 | } | |
8413 | ||
8414 | return 0; | |
8415 | } | |
8416 | ||
8417 | int zebra_vxlan_process_vrf_vni_cmd(struct zebra_vrf *zvrf, vni_t vni, | |
8418 | char *err, int err_str_sz, int filter, | |
8419 | int add) | |
8420 | { | |
8421 | zebra_l3vni_t *zl3vni = NULL; | |
8422 | struct zebra_vrf *zvrf_default = NULL; | |
8423 | ||
8424 | zvrf_default = zebra_vrf_lookup_by_id(VRF_DEFAULT); | |
8425 | if (!zvrf_default) | |
8426 | return -1; | |
8427 | ||
8428 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8429 | zlog_debug("vrf %s vni %u %s", zvrf_name(zvrf), vni, | |
8430 | add ? "ADD" : "DEL"); | |
8431 | ||
8432 | if (add) { | |
8433 | ||
8434 | zebra_vxlan_handle_vni_transition(zvrf, vni, add); | |
8435 | ||
8436 | /* check if the vni is already present under zvrf */ | |
8437 | if (zvrf->l3vni) { | |
8438 | snprintf(err, err_str_sz, | |
8439 | "VNI is already configured under the vrf"); | |
8440 | return -1; | |
8441 | } | |
8442 | ||
8443 | /* check if this VNI is already present in the system */ | |
8444 | zl3vni = zl3vni_lookup(vni); | |
8445 | if (zl3vni) { | |
8446 | snprintf(err, err_str_sz, | |
8447 | "VNI is already configured as L3-VNI"); | |
8448 | return -1; | |
8449 | } | |
8450 | ||
8451 | /* add the L3-VNI to the global table */ | |
8452 | zl3vni = zl3vni_add(vni, zvrf_id(zvrf)); | |
8453 | if (!zl3vni) { | |
8454 | snprintf(err, err_str_sz, "Could not add L3-VNI"); | |
8455 | return -1; | |
8456 | } | |
8457 | ||
8458 | /* associate the vrf with vni */ | |
8459 | zvrf->l3vni = vni; | |
8460 | ||
8461 | /* set the filter in l3vni to denote if we are using l3vni only | |
8462 | * for prefix routes | |
8463 | */ | |
8464 | if (filter) | |
8465 | SET_FLAG(zl3vni->filter, PREFIX_ROUTES_ONLY); | |
8466 | ||
8467 | /* associate with vxlan-intf; | |
8468 | * we need to associate with the vxlan-intf first | |
8469 | */ | |
8470 | zl3vni->vxlan_if = zl3vni_map_to_vxlan_if(zl3vni); | |
8471 | ||
8472 | /* associate with corresponding SVI interface, we can associate | |
8473 | * with svi-if only after vxlan interface association is | |
8474 | * complete | |
8475 | */ | |
8476 | zl3vni->svi_if = zl3vni_map_to_svi_if(zl3vni); | |
8477 | ||
8478 | /* formulate l2vni list */ | |
8479 | hash_iterate(zvrf_default->vni_table, zvni_add_to_l3vni_list, | |
8480 | zl3vni); | |
8481 | ||
8482 | if (is_l3vni_oper_up(zl3vni)) | |
8483 | zebra_vxlan_process_l3vni_oper_up(zl3vni); | |
8484 | ||
8485 | } else { | |
8486 | zl3vni = zl3vni_lookup(vni); | |
8487 | if (!zl3vni) { | |
8488 | snprintf(err, err_str_sz, "VNI doesn't exist"); | |
8489 | return -1; | |
8490 | } | |
8491 | ||
8492 | if (filter && !CHECK_FLAG(zl3vni->filter, PREFIX_ROUTES_ONLY)) { | |
8493 | snprintf(err, ERR_STR_SZ, | |
8494 | "prefix-routes-only is not set for the vni"); | |
8495 | return -1; | |
8496 | } | |
8497 | ||
8498 | zebra_vxlan_process_l3vni_oper_down(zl3vni); | |
8499 | ||
8500 | /* delete and uninstall all rmacs */ | |
8501 | hash_iterate(zl3vni->rmac_table, zl3vni_del_rmac_hash_entry, | |
8502 | zl3vni); | |
8503 | ||
8504 | /* delete and uninstall all next-hops */ | |
8505 | hash_iterate(zl3vni->nh_table, zl3vni_del_nh_hash_entry, | |
8506 | zl3vni); | |
8507 | ||
8508 | zvrf->l3vni = 0; | |
8509 | zl3vni_del(zl3vni); | |
8510 | ||
8511 | zebra_vxlan_handle_vni_transition(zvrf, vni, add); | |
8512 | } | |
8513 | return 0; | |
8514 | } | |
8515 | ||
8516 | int zebra_vxlan_vrf_enable(struct zebra_vrf *zvrf) | |
8517 | { | |
8518 | zebra_l3vni_t *zl3vni = NULL; | |
8519 | ||
8520 | if (zvrf->l3vni) | |
8521 | zl3vni = zl3vni_lookup(zvrf->l3vni); | |
8522 | if (!zl3vni) | |
8523 | return 0; | |
8524 | ||
8525 | zl3vni->vrf_id = zvrf_id(zvrf); | |
8526 | if (is_l3vni_oper_up(zl3vni)) | |
8527 | zebra_vxlan_process_l3vni_oper_up(zl3vni); | |
8528 | return 0; | |
8529 | } | |
8530 | ||
8531 | int zebra_vxlan_vrf_disable(struct zebra_vrf *zvrf) | |
8532 | { | |
8533 | zebra_l3vni_t *zl3vni = NULL; | |
8534 | ||
8535 | if (zvrf->l3vni) | |
8536 | zl3vni = zl3vni_lookup(zvrf->l3vni); | |
8537 | if (!zl3vni) | |
8538 | return 0; | |
8539 | ||
8540 | zl3vni->vrf_id = VRF_UNKNOWN; | |
8541 | zebra_vxlan_process_l3vni_oper_down(zl3vni); | |
8542 | return 0; | |
8543 | } | |
8544 | ||
8545 | int zebra_vxlan_vrf_delete(struct zebra_vrf *zvrf) | |
8546 | { | |
8547 | zebra_l3vni_t *zl3vni = NULL; | |
8548 | vni_t vni; | |
8549 | ||
8550 | if (zvrf->l3vni) | |
8551 | zl3vni = zl3vni_lookup(zvrf->l3vni); | |
8552 | if (!zl3vni) | |
8553 | return 0; | |
8554 | ||
8555 | vni = zl3vni->vni; | |
8556 | zl3vni_del(zl3vni); | |
8557 | zebra_vxlan_handle_vni_transition(zvrf, vni, 0); | |
8558 | ||
8559 | return 0; | |
8560 | } | |
8561 | ||
8562 | /* | |
8563 | * Handle message from client to specify the flooding mechanism for | |
8564 | * BUM packets. The default is to do head-end (ingress) replication | |
8565 | * and the other supported option is to disable it. This applies to | |
8566 | * all BUM traffic and disabling it applies to both the transmit and | |
8567 | * receive direction. | |
8568 | */ | |
8569 | void zebra_vxlan_flood_control(ZAPI_HANDLER_ARGS) | |
8570 | { | |
8571 | struct stream *s; | |
8572 | enum vxlan_flood_control flood_ctrl; | |
8573 | ||
8574 | if (zvrf_id(zvrf) != VRF_DEFAULT) { | |
8575 | zlog_err("EVPN flood control for non-default VRF %u", | |
8576 | zvrf_id(zvrf)); | |
8577 | return; | |
8578 | } | |
8579 | ||
8580 | s = msg; | |
8581 | STREAM_GETC(s, flood_ctrl); | |
8582 | ||
8583 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8584 | zlog_debug("EVPN flood control %u, currently %u", | |
8585 | flood_ctrl, zvrf->vxlan_flood_ctrl); | |
8586 | ||
8587 | if (zvrf->vxlan_flood_ctrl == flood_ctrl) | |
8588 | return; | |
8589 | ||
8590 | zvrf->vxlan_flood_ctrl = flood_ctrl; | |
8591 | ||
8592 | /* Install or uninstall flood entries corresponding to | |
8593 | * remote VTEPs. | |
8594 | */ | |
8595 | hash_iterate(zvrf->vni_table, zvni_handle_flooding_remote_vteps, | |
8596 | zvrf); | |
8597 | ||
8598 | stream_failure: | |
8599 | return; | |
8600 | } | |
8601 | ||
8602 | /* | |
8603 | * Handle message from client to enable/disable advertisement of g/w macip | |
8604 | * routes | |
8605 | */ | |
8606 | void zebra_vxlan_advertise_subnet(ZAPI_HANDLER_ARGS) | |
8607 | { | |
8608 | struct stream *s; | |
8609 | int advertise; | |
8610 | vni_t vni = 0; | |
8611 | zebra_vni_t *zvni = NULL; | |
8612 | struct interface *ifp = NULL; | |
8613 | struct zebra_if *zif = NULL; | |
8614 | struct zebra_l2info_vxlan zl2_info; | |
8615 | struct interface *vlan_if = NULL; | |
8616 | ||
8617 | if (zvrf_id(zvrf) != VRF_DEFAULT) { | |
8618 | zlog_debug("EVPN GW-MACIP Adv for non-default VRF %u", | |
8619 | zvrf_id(zvrf)); | |
8620 | return; | |
8621 | } | |
8622 | ||
8623 | s = msg; | |
8624 | STREAM_GETC(s, advertise); | |
8625 | vni = stream_get3(s); | |
8626 | ||
8627 | zvni = zvni_lookup(vni); | |
8628 | if (!zvni) | |
8629 | return; | |
8630 | ||
8631 | if (zvni->advertise_subnet == advertise) | |
8632 | return; | |
8633 | ||
8634 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8635 | zlog_debug("EVPN subnet Adv %s on VNI %d , currently %s", | |
8636 | advertise ? "enabled" : "disabled", vni, | |
8637 | zvni->advertise_subnet ? "enabled" : "disabled"); | |
8638 | ||
8639 | ||
8640 | zvni->advertise_subnet = advertise; | |
8641 | ||
8642 | ifp = zvni->vxlan_if; | |
8643 | if (!ifp) | |
8644 | return; | |
8645 | ||
8646 | zif = ifp->info; | |
8647 | ||
8648 | /* If down or not mapped to a bridge, we're done. */ | |
8649 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) | |
8650 | return; | |
8651 | ||
8652 | zl2_info = zif->l2info.vxl; | |
8653 | ||
8654 | vlan_if = | |
8655 | zvni_map_to_svi(zl2_info.access_vlan, zif->brslave_info.br_if); | |
8656 | if (!vlan_if) | |
8657 | return; | |
8658 | ||
8659 | if (zvni->advertise_subnet) | |
8660 | zvni_advertise_subnet(zvni, vlan_if, 1); | |
8661 | else | |
8662 | zvni_advertise_subnet(zvni, vlan_if, 0); | |
8663 | ||
8664 | stream_failure: | |
8665 | return; | |
8666 | } | |
8667 | ||
8668 | /* | |
8669 | * Handle message from client to enable/disable advertisement of g/w macip | |
8670 | * routes | |
8671 | */ | |
8672 | void zebra_vxlan_advertise_gw_macip(ZAPI_HANDLER_ARGS) | |
8673 | { | |
8674 | struct stream *s; | |
8675 | int advertise; | |
8676 | vni_t vni = 0; | |
8677 | zebra_vni_t *zvni = NULL; | |
8678 | struct interface *ifp = NULL; | |
8679 | ||
8680 | if (zvrf_id(zvrf) != VRF_DEFAULT) { | |
8681 | zlog_debug("EVPN GW-MACIP Adv for non-default VRF %u", | |
8682 | zvrf_id(zvrf)); | |
8683 | return; | |
8684 | } | |
8685 | ||
8686 | s = msg; | |
8687 | STREAM_GETC(s, advertise); | |
8688 | STREAM_GETL(s, vni); | |
8689 | ||
8690 | if (!vni) { | |
8691 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8692 | zlog_debug("EVPN gateway macip Adv %s, currently %s", | |
8693 | advertise ? "enabled" : "disabled", | |
8694 | advertise_gw_macip_enabled(NULL) | |
8695 | ? "enabled" | |
8696 | : "disabled"); | |
8697 | ||
8698 | if (zvrf->advertise_gw_macip == advertise) | |
8699 | return; | |
8700 | ||
8701 | zvrf->advertise_gw_macip = advertise; | |
8702 | ||
8703 | if (advertise_gw_macip_enabled(zvni)) | |
8704 | hash_iterate(zvrf->vni_table, | |
8705 | zvni_gw_macip_add_for_vni_hash, NULL); | |
8706 | else | |
8707 | hash_iterate(zvrf->vni_table, | |
8708 | zvni_gw_macip_del_for_vni_hash, NULL); | |
8709 | ||
8710 | } else { | |
8711 | struct zebra_if *zif = NULL; | |
8712 | struct zebra_l2info_vxlan zl2_info; | |
8713 | struct interface *vlan_if = NULL; | |
8714 | struct interface *vrr_if = NULL; | |
8715 | ||
8716 | zvni = zvni_lookup(vni); | |
8717 | if (!zvni) | |
8718 | return; | |
8719 | ||
8720 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8721 | zlog_debug( | |
8722 | "EVPN gateway macip Adv %s on VNI %d , currently %s", | |
8723 | advertise ? "enabled" : "disabled", vni, | |
8724 | advertise_gw_macip_enabled(zvni) ? "enabled" | |
8725 | : "disabled"); | |
8726 | ||
8727 | if (zvni->advertise_gw_macip == advertise) | |
8728 | return; | |
8729 | ||
8730 | zvni->advertise_gw_macip = advertise; | |
8731 | ||
8732 | ifp = zvni->vxlan_if; | |
8733 | if (!ifp) | |
8734 | return; | |
8735 | ||
8736 | zif = ifp->info; | |
8737 | ||
8738 | /* If down or not mapped to a bridge, we're done. */ | |
8739 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) | |
8740 | return; | |
8741 | ||
8742 | zl2_info = zif->l2info.vxl; | |
8743 | ||
8744 | vlan_if = zvni_map_to_svi(zl2_info.access_vlan, | |
8745 | zif->brslave_info.br_if); | |
8746 | if (!vlan_if) | |
8747 | return; | |
8748 | ||
8749 | if (advertise_gw_macip_enabled(zvni)) { | |
8750 | /* Add primary SVI MAC-IP */ | |
8751 | zvni_add_macip_for_intf(vlan_if, zvni); | |
8752 | ||
8753 | /* Add VRR MAC-IP - if any*/ | |
8754 | vrr_if = zebra_get_vrr_intf_for_svi(vlan_if); | |
8755 | if (vrr_if) | |
8756 | zvni_add_macip_for_intf(vrr_if, zvni); | |
8757 | } else { | |
8758 | /* Del primary MAC-IP */ | |
8759 | zvni_del_macip_for_intf(vlan_if, zvni); | |
8760 | ||
8761 | /* Del VRR MAC-IP - if any*/ | |
8762 | vrr_if = zebra_get_vrr_intf_for_svi(vlan_if); | |
8763 | if (vrr_if) | |
8764 | zvni_del_macip_for_intf(vrr_if, zvni); | |
8765 | } | |
8766 | } | |
8767 | ||
8768 | stream_failure: | |
8769 | return; | |
8770 | } | |
8771 | ||
8772 | ||
8773 | /* | |
8774 | * Handle message from client to learn (or stop learning) about VNIs and MACs. | |
8775 | * When enabled, the VNI hash table will be built and MAC FDB table read; | |
8776 | * when disabled, the entries should be deleted and remote VTEPs and MACs | |
8777 | * uninstalled from the kernel. | |
8778 | * This also informs the setting for BUM handling at the time this change | |
8779 | * occurs; it is relevant only when specifying "learn". | |
8780 | */ | |
8781 | void zebra_vxlan_advertise_all_vni(ZAPI_HANDLER_ARGS) | |
8782 | { | |
8783 | struct stream *s = NULL; | |
8784 | int advertise = 0; | |
8785 | enum vxlan_flood_control flood_ctrl; | |
8786 | ||
8787 | if (zvrf_id(zvrf) != VRF_DEFAULT) { | |
8788 | zlog_debug("EVPN VNI Adv for non-default VRF %u", | |
8789 | zvrf_id(zvrf)); | |
8790 | return; | |
8791 | } | |
8792 | ||
8793 | s = msg; | |
8794 | STREAM_GETC(s, advertise); | |
8795 | STREAM_GETC(s, flood_ctrl); | |
8796 | ||
8797 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8798 | zlog_debug("EVPN VNI Adv %s, currently %s, flood control %u", | |
8799 | advertise ? "enabled" : "disabled", | |
8800 | is_evpn_enabled() ? "enabled" : "disabled", | |
8801 | flood_ctrl); | |
8802 | ||
8803 | if (zvrf->advertise_all_vni == advertise) | |
8804 | return; | |
8805 | ||
8806 | zvrf->advertise_all_vni = advertise; | |
8807 | if (is_evpn_enabled()) { | |
8808 | /* Note BUM handling */ | |
8809 | zvrf->vxlan_flood_ctrl = flood_ctrl; | |
8810 | ||
8811 | /* Build VNI hash table and inform BGP. */ | |
8812 | zvni_build_hash_table(); | |
8813 | ||
8814 | /* Add all SVI (L3 GW) MACs to BGP*/ | |
8815 | hash_iterate(zvrf->vni_table, zvni_gw_macip_add_for_vni_hash, | |
8816 | NULL); | |
8817 | ||
8818 | /* Read the MAC FDB */ | |
8819 | macfdb_read(zvrf->zns); | |
8820 | ||
8821 | /* Read neighbors */ | |
8822 | neigh_read(zvrf->zns); | |
8823 | } else { | |
8824 | /* Cleanup VTEPs for all VNIs - uninstall from | |
8825 | * kernel and free entries. | |
8826 | */ | |
8827 | hash_iterate(zvrf->vni_table, zvni_cleanup_all, zvrf); | |
8828 | ||
8829 | /* cleanup all l3vnis */ | |
8830 | hash_iterate(zrouter.l3vni_table, zl3vni_cleanup_all, NULL); | |
8831 | } | |
8832 | ||
8833 | stream_failure: | |
8834 | return; | |
8835 | } | |
8836 | ||
8837 | /* | |
8838 | * Allocate VNI hash table for this VRF and do other initialization. | |
8839 | * NOTE: Currently supported only for default VRF. | |
8840 | */ | |
8841 | void zebra_vxlan_init_tables(struct zebra_vrf *zvrf) | |
8842 | { | |
8843 | if (!zvrf) | |
8844 | return; | |
8845 | zvrf->vni_table = hash_create(vni_hash_keymake, vni_hash_cmp, | |
8846 | "Zebra VRF VNI Table"); | |
8847 | } | |
8848 | ||
8849 | /* Cleanup VNI info, but don't free the table. */ | |
8850 | void zebra_vxlan_cleanup_tables(struct zebra_vrf *zvrf) | |
8851 | { | |
8852 | if (!zvrf) | |
8853 | return; | |
8854 | hash_iterate(zvrf->vni_table, zvni_cleanup_all, zvrf); | |
8855 | } | |
8856 | ||
8857 | /* Close all VNI handling */ | |
8858 | void zebra_vxlan_close_tables(struct zebra_vrf *zvrf) | |
8859 | { | |
8860 | if (!zvrf) | |
8861 | return; | |
8862 | hash_iterate(zvrf->vni_table, zvni_cleanup_all, zvrf); | |
8863 | hash_free(zvrf->vni_table); | |
8864 | } | |
8865 | ||
8866 | /* init the l3vni table */ | |
8867 | void zebra_vxlan_init(void) | |
8868 | { | |
8869 | zrouter.l3vni_table = hash_create(l3vni_hash_keymake, l3vni_hash_cmp, | |
8870 | "Zebra VRF L3 VNI table"); | |
8871 | } | |
8872 | ||
8873 | /* free l3vni table */ | |
8874 | void zebra_vxlan_disable(void) | |
8875 | { | |
8876 | hash_free(zrouter.l3vni_table); | |
8877 | } | |
8878 | ||
8879 | /* get the l3vni svi ifindex */ | |
8880 | ifindex_t get_l3vni_svi_ifindex(vrf_id_t vrf_id) | |
8881 | { | |
8882 | zebra_l3vni_t *zl3vni = NULL; | |
8883 | ||
8884 | zl3vni = zl3vni_from_vrf(vrf_id); | |
8885 | if (!zl3vni || !is_l3vni_oper_up(zl3vni)) | |
8886 | return 0; | |
8887 | ||
8888 | return zl3vni->svi_if->ifindex; | |
8889 | } | |
8890 | ||
8891 | static int zebra_vxlan_dad_ip_auto_recovery_exp(struct thread *t) | |
8892 | { | |
8893 | struct zebra_vrf *zvrf = NULL; | |
8894 | zebra_neigh_t *nbr = NULL; | |
8895 | zebra_vni_t *zvni = NULL; | |
8896 | char buf1[INET6_ADDRSTRLEN]; | |
8897 | char buf2[ETHER_ADDR_STRLEN]; | |
8898 | ||
8899 | nbr = THREAD_ARG(t); | |
8900 | ||
8901 | /* since this is asynchronous we need sanity checks*/ | |
8902 | zvrf = vrf_info_lookup(nbr->zvni->vrf_id); | |
8903 | if (!zvrf) | |
8904 | return 0; | |
8905 | ||
8906 | zvni = zvni_lookup(nbr->zvni->vni); | |
8907 | if (!zvni) | |
8908 | return 0; | |
8909 | ||
8910 | nbr = zvni_neigh_lookup(zvni, &nbr->ip); | |
8911 | if (!nbr) | |
8912 | return 0; | |
8913 | ||
8914 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8915 | zlog_debug("%s: duplicate addr MAC %s IP %s flags 0x%x learn count %u vni %u auto recovery expired", | |
8916 | __PRETTY_FUNCTION__, | |
8917 | prefix_mac2str(&nbr->emac, buf1, sizeof(buf1)), | |
8918 | ipaddr2str(&nbr->ip, buf2, sizeof(buf2)), | |
8919 | nbr->flags, | |
8920 | nbr->dad_count, zvni->vni); | |
8921 | ||
8922 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
8923 | nbr->dad_count = 0; | |
8924 | nbr->detect_start_time.tv_sec = 0; | |
8925 | nbr->detect_start_time.tv_usec = 0; | |
8926 | nbr->dad_dup_detect_time = 0; | |
8927 | nbr->dad_ip_auto_recovery_timer = NULL; | |
8928 | ||
8929 | /* Send to BGP */ | |
8930 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) { | |
8931 | zvni_neigh_send_add_to_client(zvni->vni, &nbr->ip, &nbr->emac, | |
8932 | nbr->flags, nbr->loc_seq); | |
8933 | } else if (!!CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE)) { | |
8934 | zvni_neigh_install(zvni, nbr); | |
8935 | } | |
8936 | ||
8937 | return 0; | |
8938 | } | |
8939 | ||
8940 | static int zebra_vxlan_dad_mac_auto_recovery_exp(struct thread *t) | |
8941 | { | |
8942 | struct zebra_vrf *zvrf = NULL; | |
8943 | zebra_mac_t *mac = NULL; | |
8944 | zebra_vni_t *zvni = NULL; | |
8945 | struct listnode *node = NULL; | |
8946 | zebra_neigh_t *nbr = NULL; | |
8947 | char buf[ETHER_ADDR_STRLEN]; | |
8948 | ||
8949 | mac = THREAD_ARG(t); | |
8950 | ||
8951 | /* since this is asynchronous we need sanity checks*/ | |
8952 | zvrf = vrf_info_lookup(mac->zvni->vrf_id); | |
8953 | if (!zvrf) | |
8954 | return 0; | |
8955 | ||
8956 | zvni = zvni_lookup(mac->zvni->vni); | |
8957 | if (!zvni) | |
8958 | return 0; | |
8959 | ||
8960 | mac = zvni_mac_lookup(zvni, &mac->macaddr); | |
8961 | if (!mac) | |
8962 | return 0; | |
8963 | ||
8964 | if (IS_ZEBRA_DEBUG_VXLAN) | |
8965 | zlog_debug("%s: duplicate addr mac %s flags 0x%x learn count %u host count %u auto recovery expired", | |
8966 | __PRETTY_FUNCTION__, | |
8967 | prefix_mac2str(&mac->macaddr, buf, sizeof(buf)), | |
8968 | mac->flags, | |
8969 | mac->dad_count, | |
8970 | listcount(mac->neigh_list)); | |
8971 | ||
8972 | /* Remove all IPs as duplicate associcated with this MAC */ | |
8973 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, nbr)) { | |
8974 | if (nbr->dad_count) { | |
8975 | if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_LOCAL)) | |
8976 | ZEBRA_NEIGH_SET_INACTIVE(nbr); | |
8977 | else if (CHECK_FLAG(nbr->flags, ZEBRA_NEIGH_REMOTE)) | |
8978 | zvni_neigh_install(zvni, nbr); | |
8979 | } | |
8980 | ||
8981 | UNSET_FLAG(nbr->flags, ZEBRA_NEIGH_DUPLICATE); | |
8982 | nbr->dad_count = 0; | |
8983 | nbr->detect_start_time.tv_sec = 0; | |
8984 | nbr->dad_dup_detect_time = 0; | |
8985 | } | |
8986 | ||
8987 | UNSET_FLAG(mac->flags, ZEBRA_MAC_DUPLICATE); | |
8988 | mac->dad_count = 0; | |
8989 | mac->detect_start_time.tv_sec = 0; | |
8990 | mac->detect_start_time.tv_usec = 0; | |
8991 | mac->dad_dup_detect_time = 0; | |
8992 | mac->dad_mac_auto_recovery_timer = NULL; | |
8993 | ||
8994 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
8995 | /* Inform to BGP */ | |
8996 | if (zvni_mac_send_add_to_client(zvni->vni, &mac->macaddr, | |
8997 | mac->flags, mac->loc_seq)) | |
8998 | return -1; | |
8999 | ||
9000 | /* Process all neighbors associated with this MAC. */ | |
9001 | zvni_process_neigh_on_local_mac_change(zvni, mac, 0); | |
9002 | ||
9003 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
9004 | zvni_process_neigh_on_remote_mac_add(zvni, mac); | |
9005 | ||
9006 | /* Install the entry. */ | |
9007 | zvni_mac_install(zvni, mac); | |
9008 | } | |
9009 | ||
9010 | return 0; | |
9011 | } |