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13d60d35 | 1 | /* |
2 | * Zebra EVPN for VxLAN code | |
3 | * Copyright (C) 2016, 2017 Cumulus Networks, Inc. | |
4 | * | |
5 | * This file is part of FRR. | |
6 | * | |
7 | * FRR is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * FRR is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with FRR; see the file COPYING. If not, write to the Free | |
19 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | * 02111-1307, USA. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "if.h" | |
26 | #include "prefix.h" | |
27 | #include "table.h" | |
28 | #include "memory.h" | |
29 | #include "log.h" | |
30 | #include "linklist.h" | |
31 | #include "stream.h" | |
32 | #include "hash.h" | |
33 | #include "jhash.h" | |
34 | #include "vlan.h" | |
35 | #include "vxlan.h" | |
36 | ||
37 | #include "zebra/rib.h" | |
38 | #include "zebra/rt.h" | |
39 | #include "zebra/zebra_ns.h" | |
40 | #include "zebra/zserv.h" | |
41 | #include "zebra/debug.h" | |
42 | #include "zebra/interface.h" | |
43 | #include "zebra/zebra_vrf.h" | |
44 | #include "zebra/rt_netlink.h" | |
45 | #include "zebra/zebra_vxlan_private.h" | |
46 | #include "zebra/zebra_vxlan.h" | |
47 | #include "zebra/zebra_memory.h" | |
48 | #include "zebra/zebra_l2.h" | |
cd233079 | 49 | #include "lib/json.h" |
13d60d35 | 50 | |
d62a17ae | 51 | DEFINE_MTYPE_STATIC(ZEBRA, ZVNI, "VNI hash"); |
13d60d35 | 52 | DEFINE_MTYPE_STATIC(ZEBRA, ZVNI_VTEP, "VNI remote VTEP"); |
d62a17ae | 53 | DEFINE_MTYPE_STATIC(ZEBRA, MAC, "VNI MAC"); |
54 | DEFINE_MTYPE_STATIC(ZEBRA, NEIGH, "VNI Neighbor"); | |
13d60d35 | 55 | |
56 | /* definitions */ | |
57 | ||
58 | ||
59 | /* static function declarations */ | |
cd233079 | 60 | static void zvni_print_neigh(zebra_neigh_t *n, void *ctxt, json_object *json); |
d62a17ae | 61 | static void zvni_print_neigh_hash(struct hash_backet *backet, void *ctxt); |
62 | static void zvni_print_neigh_hash_all_vni(struct hash_backet *backet, | |
cd233079 | 63 | void **args); |
d62a17ae | 64 | static void zvni_print_mac(zebra_mac_t *mac, void *ctxt); |
65 | static void zvni_print_mac_hash(struct hash_backet *backet, void *ctxt); | |
66 | static void zvni_print_mac_hash_all_vni(struct hash_backet *backet, void *ctxt); | |
cd233079 CS |
67 | static void zvni_print(zebra_vni_t *zvni, void **ctxt); |
68 | static void zvni_print_hash(struct hash_backet *backet, void *ctxt[]); | |
d62a17ae | 69 | |
70 | static int zvni_macip_send_msg_to_client(struct zebra_vrf *zvrf, vni_t vni, | |
71 | struct ethaddr *macaddr, | |
1a98c087 | 72 | struct ipaddr *ip, u_char flags, |
d62a17ae | 73 | u_int16_t cmd); |
74 | static unsigned int neigh_hash_keymake(void *p); | |
75 | static int neigh_cmp(const void *p1, const void *p2); | |
76 | static void *zvni_neigh_alloc(void *p); | |
b6938a74 MK |
77 | static zebra_neigh_t *zvni_neigh_add(zebra_vni_t *zvni, struct ipaddr *ip, |
78 | struct ethaddr *mac); | |
d62a17ae | 79 | static int zvni_neigh_del(zebra_vni_t *zvni, zebra_neigh_t *n); |
80 | static int zvni_neigh_del_hash_entry(struct hash_backet *backet, void *arg); | |
81 | static void zvni_neigh_del_from_vtep(zebra_vni_t *zvni, int uninstall, | |
82 | struct in_addr *r_vtep_ip); | |
83 | static void zvni_neigh_del_all(struct zebra_vrf *zvrf, zebra_vni_t *zvni, | |
84 | int uninstall, int upd_client, u_int32_t flags); | |
85 | static zebra_neigh_t *zvni_neigh_lookup(zebra_vni_t *zvni, struct ipaddr *ip); | |
86 | static int zvni_neigh_send_add_to_client(struct zebra_vrf *zvrf, vni_t vni, | |
87 | struct ipaddr *ip, | |
1a98c087 | 88 | struct ethaddr *macaddr, u_char flags); |
d62a17ae | 89 | static int zvni_neigh_send_del_to_client(struct zebra_vrf *zvrf, vni_t vni, |
90 | struct ipaddr *ip, | |
1a98c087 | 91 | struct ethaddr *macaddr, u_char flags); |
d62a17ae | 92 | static int zvni_neigh_install(zebra_vni_t *zvni, zebra_neigh_t *n); |
93 | static int zvni_neigh_uninstall(zebra_vni_t *zvni, zebra_neigh_t *n); | |
94 | static zebra_vni_t *zvni_map_svi(struct interface *ifp, | |
95 | struct interface *br_if); | |
96 | static struct interface *zvni_map_to_svi(struct zebra_vrf *zvrf, vlanid_t vid, | |
97 | struct interface *br_if); | |
98 | ||
99 | static unsigned int mac_hash_keymake(void *p); | |
100 | static int mac_cmp(const void *p1, const void *p2); | |
101 | static void *zvni_mac_alloc(void *p); | |
102 | static zebra_mac_t *zvni_mac_add(zebra_vni_t *zvni, struct ethaddr *macaddr); | |
103 | static int zvni_mac_del(zebra_vni_t *zvni, zebra_mac_t *mac); | |
104 | static int zvni_mac_del_hash_entry(struct hash_backet *backet, void *arg); | |
105 | static void zvni_mac_del_from_vtep(zebra_vni_t *zvni, int uninstall, | |
106 | struct in_addr *r_vtep_ip); | |
107 | static void zvni_mac_del_all(struct zebra_vrf *zvrf, zebra_vni_t *zvni, | |
108 | int uninstall, int upd_client, u_int32_t flags); | |
109 | static zebra_mac_t *zvni_mac_lookup(zebra_vni_t *zvni, struct ethaddr *macaddr); | |
110 | static int zvni_mac_send_add_to_client(struct zebra_vrf *zvrf, vni_t vni, | |
1a98c087 | 111 | struct ethaddr *macaddr, u_char flags); |
d62a17ae | 112 | static int zvni_mac_send_del_to_client(struct zebra_vrf *zvrf, vni_t vni, |
1a98c087 | 113 | struct ethaddr *macaddr, u_char flags); |
d62a17ae | 114 | static zebra_vni_t *zvni_map_vlan(struct interface *ifp, |
115 | struct interface *br_if, vlanid_t vid); | |
116 | static int zvni_mac_install(zebra_vni_t *zvni, zebra_mac_t *mac); | |
117 | static int zvni_mac_uninstall(zebra_vni_t *zvni, zebra_mac_t *mac, int local); | |
118 | static void zvni_install_mac_hash(struct hash_backet *backet, void *ctxt); | |
119 | ||
120 | static unsigned int vni_hash_keymake(void *p); | |
121 | static int vni_hash_cmp(const void *p1, const void *p2); | |
122 | static void *zvni_alloc(void *p); | |
123 | static zebra_vni_t *zvni_lookup(struct zebra_vrf *zvrf, vni_t vni); | |
124 | static zebra_vni_t *zvni_add(struct zebra_vrf *zvrf, vni_t vni); | |
125 | static int zvni_del(struct zebra_vrf *zvrf, zebra_vni_t *zvni); | |
126 | static int zvni_send_add_to_client(struct zebra_vrf *zvrf, zebra_vni_t *zvni); | |
127 | static int zvni_send_del_to_client(struct zebra_vrf *zvrf, vni_t vni); | |
128 | static void zvni_build_hash_table(struct zebra_vrf *zvrf); | |
129 | static int zvni_vtep_match(struct in_addr *vtep_ip, zebra_vtep_t *zvtep); | |
130 | static zebra_vtep_t *zvni_vtep_find(zebra_vni_t *zvni, struct in_addr *vtep_ip); | |
131 | static zebra_vtep_t *zvni_vtep_add(zebra_vni_t *zvni, struct in_addr *vtep_ip); | |
132 | static int zvni_vtep_del(zebra_vni_t *zvni, zebra_vtep_t *zvtep); | |
133 | static int zvni_vtep_del_all(zebra_vni_t *zvni, int uninstall); | |
134 | static int zvni_vtep_install(zebra_vni_t *zvni, struct in_addr *vtep_ip); | |
135 | static int zvni_vtep_uninstall(zebra_vni_t *zvni, struct in_addr *vtep_ip); | |
1a98c087 MK |
136 | static int zvni_del_macip_for_intf(struct interface *ifp, zebra_vni_t *zvni); |
137 | static int zvni_add_macip_for_intf(struct interface *ifp, zebra_vni_t *zvni); | |
138 | static int zvni_gw_macip_add(struct interface *ifp, zebra_vni_t *zvni, | |
139 | struct ethaddr *macaddr, struct ipaddr *ip); | |
140 | static int zvni_gw_macip_del(struct interface *ifp, zebra_vni_t *zvni, | |
141 | struct ipaddr *ip); | |
142 | struct interface *zebra_get_vrr_intf_for_svi(struct interface *ifp); | |
143 | static int advertise_gw_macip_enabled(struct zebra_vrf *zvrf, | |
144 | zebra_vni_t *zvni); | |
145 | static void zvni_deref_ip2mac(zebra_vni_t *zvni, zebra_mac_t *mac, | |
146 | int uninstall); | |
13d60d35 | 147 | |
148 | /* Private functions */ | |
149 | ||
1a98c087 MK |
150 | static int advertise_gw_macip_enabled(struct zebra_vrf *zvrf, zebra_vni_t *zvni) |
151 | { | |
152 | if (zvrf && zvrf->advertise_gw_macip) | |
153 | return 1; | |
154 | ||
155 | if (zvni && zvni->advertise_gw_macip) | |
156 | return 1; | |
157 | ||
158 | return 0; | |
159 | } | |
160 | ||
cec2e17d | 161 | /* |
162 | * Helper function to determine maximum width of neighbor IP address for | |
163 | * display - just because we're dealing with IPv6 addresses that can | |
164 | * widely vary. | |
165 | */ | |
d62a17ae | 166 | static void zvni_find_neigh_addr_width(struct hash_backet *backet, void *ctxt) |
cec2e17d | 167 | { |
d62a17ae | 168 | zebra_neigh_t *n; |
169 | char buf[INET6_ADDRSTRLEN]; | |
170 | struct neigh_walk_ctx *wctx = ctxt; | |
171 | int width; | |
cec2e17d | 172 | |
d62a17ae | 173 | n = (zebra_neigh_t *)backet->data; |
174 | if (!n) | |
175 | return; | |
cec2e17d | 176 | |
d62a17ae | 177 | ipaddr2str(&n->ip, buf, sizeof(buf)), width = strlen(buf); |
178 | if (width > wctx->addr_width) | |
179 | wctx->addr_width = width; | |
cec2e17d | 180 | } |
181 | ||
182 | /* | |
183 | * Print a specific neighbor entry. | |
184 | */ | |
cd233079 | 185 | static void zvni_print_neigh(zebra_neigh_t *n, void *ctxt, json_object *json) |
cec2e17d | 186 | { |
d62a17ae | 187 | struct vty *vty; |
188 | char buf1[ETHER_ADDR_STRLEN]; | |
189 | char buf2[INET6_ADDRSTRLEN]; | |
cec2e17d | 190 | |
cd233079 CS |
191 | ipaddr2str(&n->ip, buf2, sizeof(buf2)); |
192 | prefix_mac2str(&n->emac, buf1, sizeof(buf1)); | |
193 | vty = (struct vty *)ctxt; | |
194 | if (json == NULL) { | |
195 | vty_out(vty, "IP: %s\n", | |
196 | ipaddr2str(&n->ip, buf2, sizeof(buf2))); | |
197 | vty_out(vty, " MAC: %s", | |
198 | prefix_mac2str(&n->emac, buf1, sizeof(buf1))); | |
199 | } else { | |
200 | json_object_string_add(json, "ip", buf2); | |
201 | json_object_string_add(json, "mac", buf1); | |
202 | } | |
203 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) { | |
b6938a74 | 204 | if (json == NULL) { |
cd233079 CS |
205 | vty_out(vty, " Remote VTEP: %s", |
206 | inet_ntoa(n->r_vtep_ip)); | |
b6938a74 MK |
207 | vty_out(vty, " State: %s", IS_ZEBRA_NEIGH_ACTIVE(n) |
208 | ? "Active" | |
209 | : "Inactive"); | |
210 | } else | |
cd233079 CS |
211 | json_object_string_add(json, "remoteVtep", |
212 | inet_ntoa(n->r_vtep_ip)); | |
213 | } | |
214 | if (json == NULL) | |
215 | vty_out(vty, "\n"); | |
cec2e17d | 216 | } |
217 | ||
218 | /* | |
219 | * Print neighbor hash entry - called for display of all neighbors. | |
220 | */ | |
d62a17ae | 221 | static void zvni_print_neigh_hash(struct hash_backet *backet, void *ctxt) |
222 | { | |
223 | struct vty *vty; | |
cd233079 | 224 | json_object *json_vni = NULL, *json_row = NULL; |
d62a17ae | 225 | zebra_neigh_t *n; |
226 | char buf1[ETHER_ADDR_STRLEN]; | |
227 | char buf2[INET6_ADDRSTRLEN]; | |
228 | struct neigh_walk_ctx *wctx = ctxt; | |
229 | ||
230 | vty = wctx->vty; | |
cd233079 | 231 | json_vni = wctx->json; |
d62a17ae | 232 | n = (zebra_neigh_t *)backet->data; |
233 | if (!n) | |
234 | return; | |
235 | ||
cd233079 CS |
236 | if (json_vni) |
237 | json_row = json_object_new_object(); | |
238 | ||
d62a17ae | 239 | prefix_mac2str(&n->emac, buf1, sizeof(buf1)); |
240 | ipaddr2str(&n->ip, buf2, sizeof(buf2)); | |
241 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL) | |
242 | && !(wctx->flags & SHOW_REMOTE_NEIGH_FROM_VTEP)) { | |
cd233079 CS |
243 | if (json_vni == NULL) { |
244 | vty_out(vty, "%*s %-6s %-17s\n", -wctx->addr_width, | |
245 | buf2, "local", buf1); | |
246 | } else { | |
247 | json_object_string_add(json_row, "type", "local"); | |
248 | json_object_string_add(json_row, "mac", buf1); | |
249 | } | |
d62a17ae | 250 | wctx->count++; |
251 | } else { | |
252 | if (wctx->flags & SHOW_REMOTE_NEIGH_FROM_VTEP) { | |
253 | if (IPV4_ADDR_SAME(&n->r_vtep_ip, &wctx->r_vtep_ip)) { | |
cd233079 CS |
254 | if (json_vni == NULL) { |
255 | if (wctx->count == 0) | |
256 | vty_out(vty, | |
257 | "%*s %-6s %-17s %-21s\n", | |
258 | -wctx->addr_width, | |
259 | "Neighbor", "Type", | |
260 | "MAC", "Remote VTEP"); | |
d62a17ae | 261 | vty_out(vty, "%*s %-6s %-17s %-21s\n", |
cd233079 CS |
262 | -wctx->addr_width, buf2, |
263 | "remote", buf1, | |
264 | inet_ntoa(n->r_vtep_ip)); | |
265 | } else { | |
266 | json_object_string_add(json_row, "type", | |
267 | "remote"); | |
268 | json_object_string_add(json_row, "mac", | |
269 | buf1); | |
270 | json_object_string_add( | |
271 | json_row, "remoteVtep", | |
272 | inet_ntoa(n->r_vtep_ip)); | |
273 | } | |
274 | wctx->count++; | |
275 | } | |
276 | } else { | |
277 | if (json_vni == NULL) { | |
d62a17ae | 278 | vty_out(vty, "%*s %-6s %-17s %-21s\n", |
279 | -wctx->addr_width, buf2, "remote", buf1, | |
280 | inet_ntoa(n->r_vtep_ip)); | |
cd233079 CS |
281 | } else { |
282 | json_object_string_add(json_row, "type", | |
283 | "remote"); | |
284 | json_object_string_add(json_row, "mac", buf1); | |
285 | json_object_string_add(json_row, "remoteVtep", | |
286 | inet_ntoa(n->r_vtep_ip)); | |
d62a17ae | 287 | } |
d62a17ae | 288 | wctx->count++; |
289 | } | |
290 | } | |
cd233079 CS |
291 | |
292 | if (json_vni) | |
293 | json_object_object_add(json_vni, buf2, json_row); | |
cec2e17d | 294 | } |
295 | ||
296 | /* | |
297 | * Print neighbors for all VNI. | |
298 | */ | |
d62a17ae | 299 | static void zvni_print_neigh_hash_all_vni(struct hash_backet *backet, |
cd233079 | 300 | void **args) |
cec2e17d | 301 | { |
d62a17ae | 302 | struct vty *vty; |
cd233079 | 303 | json_object *json = NULL, *json_vni = NULL; |
d62a17ae | 304 | zebra_vni_t *zvni; |
305 | u_int32_t num_neigh; | |
306 | struct neigh_walk_ctx wctx; | |
cd233079 CS |
307 | char vni_str[VNI_STR_LEN]; |
308 | ||
309 | vty = (struct vty *)args[0]; | |
310 | json = (json_object *)args[1]; | |
cec2e17d | 311 | |
d62a17ae | 312 | zvni = (zebra_vni_t *)backet->data; |
cd233079 CS |
313 | if (!zvni) { |
314 | if (json) | |
315 | vty_out(vty, "{}\n"); | |
d62a17ae | 316 | return; |
cd233079 | 317 | } |
d62a17ae | 318 | num_neigh = hashcount(zvni->neigh_table); |
cd233079 CS |
319 | if (json == NULL) |
320 | vty_out(vty, | |
321 | "\nVNI %u #ARP (IPv4 and IPv6, local and remote) %u\n\n", | |
322 | zvni->vni, num_neigh); | |
323 | else { | |
324 | json_vni = json_object_new_object(); | |
325 | json_object_int_add(json_vni, "numArpNd", num_neigh); | |
326 | snprintf(vni_str, VNI_STR_LEN, "%u", zvni->vni); | |
327 | } | |
328 | if (!num_neigh) { | |
329 | if (json) | |
330 | json_object_object_add(json, vni_str, json_vni); | |
d62a17ae | 331 | return; |
cd233079 | 332 | } |
cec2e17d | 333 | |
d62a17ae | 334 | /* Since we have IPv6 addresses to deal with which can vary widely in |
335 | * size, we try to be a bit more elegant in display by first computing | |
336 | * the maximum width. | |
337 | */ | |
338 | memset(&wctx, 0, sizeof(struct neigh_walk_ctx)); | |
339 | wctx.zvni = zvni; | |
340 | wctx.vty = vty; | |
341 | wctx.addr_width = 15; | |
cd233079 | 342 | wctx.json = json_vni; |
d62a17ae | 343 | hash_iterate(zvni->neigh_table, zvni_find_neigh_addr_width, &wctx); |
cec2e17d | 344 | |
cd233079 CS |
345 | if (json == NULL) |
346 | vty_out(vty, "%*s %-6s %-17s %-21s\n", -wctx.addr_width, "IP", | |
347 | "Type", "MAC", "Remote VTEP"); | |
d62a17ae | 348 | hash_iterate(zvni->neigh_table, zvni_print_neigh_hash, &wctx); |
cd233079 CS |
349 | |
350 | if (json) | |
351 | json_object_object_add(json, vni_str, json_vni); | |
cec2e17d | 352 | } |
353 | ||
354 | /* | |
355 | * Print a specific MAC entry. | |
356 | */ | |
d62a17ae | 357 | static void zvni_print_mac(zebra_mac_t *mac, void *ctxt) |
358 | { | |
359 | struct vty *vty; | |
b6938a74 MK |
360 | zebra_neigh_t *n = NULL; |
361 | struct listnode *node = NULL; | |
d62a17ae | 362 | char buf1[20]; |
b6938a74 | 363 | char buf2[INET6_ADDRSTRLEN]; |
d62a17ae | 364 | |
365 | vty = (struct vty *)ctxt; | |
366 | vty_out(vty, "MAC: %s", | |
367 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1))); | |
368 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
369 | struct zebra_ns *zns; | |
370 | struct interface *ifp; | |
371 | ifindex_t ifindex; | |
372 | ||
373 | ifindex = mac->fwd_info.local.ifindex; | |
374 | zns = zebra_ns_lookup(NS_DEFAULT); | |
375 | ifp = if_lookup_by_index_per_ns(zns, ifindex); | |
376 | if (!ifp) // unexpected | |
377 | return; | |
378 | vty_out(vty, " Intf: %s(%u)", ifp->name, ifindex); | |
379 | if (mac->fwd_info.local.vid) | |
380 | vty_out(vty, " VLAN: %u", mac->fwd_info.local.vid); | |
b6938a74 | 381 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { |
d62a17ae | 382 | vty_out(vty, " Remote VTEP: %s", |
383 | inet_ntoa(mac->fwd_info.r_vtep_ip)); | |
b6938a74 MK |
384 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO)) { |
385 | vty_out(vty, " Auto Mac "); | |
386 | } | |
b6938a74 | 387 | |
0a97666d | 388 | vty_out(vty, "\n"); |
b6938a74 MK |
389 | /* print all the associated neigh */ |
390 | vty_out(vty, " Neighbors:\n"); | |
391 | if (!listcount(mac->neigh_list)) | |
392 | vty_out(vty, " No Neighbors\n"); | |
393 | else { | |
394 | for (ALL_LIST_ELEMENTS_RO(mac->neigh_list, node, n)) { | |
395 | vty_out(vty, " %s %s\n", | |
396 | ipaddr2str(&n->ip, buf2, sizeof(buf2)), | |
397 | CHECK_FLAG(n->flags, ZEBRA_MAC_LOCAL) | |
398 | ? (IS_ZEBRA_NEIGH_ACTIVE(n) | |
399 | ? "Active" | |
400 | : "Inactive") | |
401 | : ""); | |
402 | } | |
d62a17ae | 403 | } |
b6938a74 | 404 | |
d62a17ae | 405 | vty_out(vty, "\n"); |
cec2e17d | 406 | } |
407 | ||
408 | /* | |
409 | * Print MAC hash entry - called for display of all MACs. | |
410 | */ | |
d62a17ae | 411 | static void zvni_print_mac_hash(struct hash_backet *backet, void *ctxt) |
412 | { | |
413 | struct vty *vty; | |
cd233079 | 414 | json_object *json_mac_hdr = NULL, *json_mac = NULL; |
d62a17ae | 415 | zebra_mac_t *mac; |
416 | char buf1[20]; | |
417 | struct mac_walk_ctx *wctx = ctxt; | |
418 | ||
419 | vty = wctx->vty; | |
cd233079 | 420 | json_mac_hdr = wctx->json; |
d62a17ae | 421 | mac = (zebra_mac_t *)backet->data; |
422 | if (!mac) | |
423 | return; | |
424 | ||
425 | prefix_mac2str(&mac->macaddr, buf1, sizeof(buf1)); | |
cd233079 CS |
426 | |
427 | if (json_mac_hdr) | |
428 | json_mac = json_object_new_object(); | |
429 | ||
d62a17ae | 430 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL) |
431 | && !(wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP)) { | |
432 | struct zebra_ns *zns; | |
433 | ifindex_t ifindex; | |
434 | struct interface *ifp; | |
435 | vlanid_t vid; | |
436 | ||
437 | zns = zebra_ns_lookup(NS_DEFAULT); | |
438 | ifindex = mac->fwd_info.local.ifindex; | |
439 | ifp = if_lookup_by_index_per_ns(zns, ifindex); | |
440 | if (!ifp) // unexpected | |
441 | return; | |
442 | vid = mac->fwd_info.local.vid; | |
cd233079 CS |
443 | if (json_mac_hdr == NULL) |
444 | vty_out(vty, "%-17s %-6s %-21s", buf1, "local", | |
445 | ifp->name); | |
446 | else { | |
447 | json_object_string_add(json_mac, "type", "local"); | |
448 | json_object_string_add(json_mac, "intf", ifp->name); | |
449 | } | |
450 | if (vid) { | |
451 | if (json_mac_hdr == NULL) | |
452 | vty_out(vty, " %-5u", vid); | |
453 | else | |
454 | json_object_int_add(json_mac, "vlan", vid); | |
455 | } | |
456 | if (json_mac_hdr == NULL) | |
457 | vty_out(vty, "\n"); | |
458 | else | |
459 | json_object_object_add(json_mac_hdr, buf1, json_mac); | |
d62a17ae | 460 | wctx->count++; |
b6938a74 | 461 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { |
d62a17ae | 462 | if (wctx->flags & SHOW_REMOTE_MAC_FROM_VTEP) { |
463 | if (IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, | |
464 | &wctx->r_vtep_ip)) { | |
465 | if (wctx->count == 0) { | |
cd233079 CS |
466 | if (json_mac_hdr == NULL) { |
467 | vty_out(vty, "\nVNI %u\n\n", | |
468 | wctx->zvni->vni); | |
469 | vty_out(vty, | |
470 | "%-17s %-6s %-21s %-5s\n", | |
471 | "MAC", "Type", | |
472 | "Intf/Remote VTEP", | |
473 | "VLAN"); | |
474 | } | |
475 | } | |
476 | if (json_mac_hdr == NULL) | |
477 | vty_out(vty, "%-17s %-6s %-21s\n", buf1, | |
478 | "remote", | |
479 | inet_ntoa(mac->fwd_info | |
480 | .r_vtep_ip)); | |
481 | else { | |
482 | json_object_string_add(json_mac, "type", | |
483 | "remote"); | |
484 | json_object_string_add( | |
485 | json_mac, "remoteVtep", | |
486 | inet_ntoa(mac->fwd_info | |
487 | .r_vtep_ip)); | |
488 | json_object_object_add(json_mac_hdr, | |
489 | buf1, json_mac); | |
d62a17ae | 490 | } |
d62a17ae | 491 | wctx->count++; |
492 | } | |
493 | } else { | |
cd233079 CS |
494 | if (json_mac_hdr == NULL) |
495 | vty_out(vty, "%-17s %-6s %-21s\n", buf1, | |
496 | "remote", | |
497 | inet_ntoa(mac->fwd_info.r_vtep_ip)); | |
498 | else { | |
499 | json_object_string_add(json_mac, "type", | |
500 | "remote"); | |
501 | json_object_string_add( | |
502 | json_mac, "remoteVtep", | |
503 | inet_ntoa(mac->fwd_info.r_vtep_ip)); | |
504 | json_object_object_add(json_mac_hdr, buf1, | |
505 | json_mac); | |
506 | } | |
d62a17ae | 507 | wctx->count++; |
508 | } | |
509 | } | |
cec2e17d | 510 | } |
511 | ||
512 | /* | |
513 | * Print MACs for all VNI. | |
514 | */ | |
d62a17ae | 515 | static void zvni_print_mac_hash_all_vni(struct hash_backet *backet, void *ctxt) |
cec2e17d | 516 | { |
d62a17ae | 517 | struct vty *vty; |
cd233079 CS |
518 | json_object *json = NULL, *json_vni = NULL; |
519 | json_object *json_mac = NULL; | |
d62a17ae | 520 | zebra_vni_t *zvni; |
521 | u_int32_t num_macs; | |
522 | struct mac_walk_ctx *wctx = ctxt; | |
cd233079 | 523 | char vni_str[VNI_STR_LEN]; |
cec2e17d | 524 | |
d62a17ae | 525 | vty = (struct vty *)wctx->vty; |
cd233079 | 526 | json = (struct json_object *)wctx->json; |
cec2e17d | 527 | |
d62a17ae | 528 | zvni = (zebra_vni_t *)backet->data; |
cd233079 CS |
529 | if (!zvni) { |
530 | if (json) | |
531 | vty_out(vty, "{}\n"); | |
d62a17ae | 532 | return; |
cd233079 | 533 | } |
d62a17ae | 534 | wctx->zvni = zvni; |
cec2e17d | 535 | |
d62a17ae | 536 | /*We are iterating over a new VNI, set the count to 0*/ |
537 | wctx->count = 0; | |
cec2e17d | 538 | |
d62a17ae | 539 | num_macs = hashcount(zvni->mac_table); |
540 | if (!num_macs) | |
541 | return; | |
cd233079 CS |
542 | |
543 | if (json) { | |
544 | json_vni = json_object_new_object(); | |
545 | json_mac = json_object_new_object(); | |
546 | snprintf(vni_str, VNI_STR_LEN, "%u", zvni->vni); | |
d62a17ae | 547 | } |
cec2e17d | 548 | |
cd233079 CS |
549 | if (!CHECK_FLAG(wctx->flags, SHOW_REMOTE_MAC_FROM_VTEP)) { |
550 | if (json == NULL) { | |
551 | vty_out(vty, "\nVNI %u #MACs (local and remote) %u\n\n", | |
552 | zvni->vni, num_macs); | |
553 | vty_out(vty, "%-17s %-6s %-21s %-5s\n", "MAC", "Type", | |
554 | "Intf/Remote VTEP", "VLAN"); | |
555 | } else | |
556 | json_object_int_add(json_vni, "numMacs", num_macs); | |
557 | } | |
558 | /* assign per-vni to wctx->json object to fill macs | |
559 | * under the vni. Re-assign primary json object to fill | |
560 | * next vni information. | |
561 | */ | |
562 | wctx->json = json_mac; | |
d62a17ae | 563 | hash_iterate(zvni->mac_table, zvni_print_mac_hash, wctx); |
cd233079 CS |
564 | wctx->json = json; |
565 | if (json) { | |
566 | if (wctx->count) | |
567 | json_object_object_add(json_vni, "macs", json_mac); | |
568 | json_object_object_add(json, vni_str, json_vni); | |
569 | } | |
cec2e17d | 570 | } |
571 | ||
572 | /* | |
573 | * Print a specific VNI entry. | |
574 | */ | |
cd233079 | 575 | static void zvni_print(zebra_vni_t *zvni, void **ctxt) |
d62a17ae | 576 | { |
577 | struct vty *vty; | |
578 | zebra_vtep_t *zvtep; | |
579 | u_int32_t num_macs; | |
580 | u_int32_t num_neigh; | |
cd233079 CS |
581 | json_object *json = NULL; |
582 | json_object *json_vtep_list = NULL; | |
583 | json_object *json_ip_str = NULL; | |
d62a17ae | 584 | |
cd233079 CS |
585 | vty = ctxt[0]; |
586 | json = ctxt[1]; | |
587 | ||
588 | if (json == NULL) | |
589 | vty_out(vty, "VNI: %u\n", zvni->vni); | |
590 | else | |
591 | json_object_int_add(json, "vni", zvni->vni); | |
d62a17ae | 592 | |
d62a17ae | 593 | if (!zvni->vxlan_if) { // unexpected |
cd233079 CS |
594 | if (json == NULL) |
595 | vty_out(vty, " VxLAN interface: unknown\n"); | |
d62a17ae | 596 | return; |
597 | } | |
cd233079 CS |
598 | num_macs = hashcount(zvni->mac_table); |
599 | num_neigh = hashcount(zvni->neigh_table); | |
600 | if (json == NULL) | |
601 | vty_out(vty, " VxLAN interface: %s ifIndex: %u VTEP IP: %s\n", | |
602 | zvni->vxlan_if->name, zvni->vxlan_if->ifindex, | |
603 | inet_ntoa(zvni->local_vtep_ip)); | |
604 | else { | |
605 | json_object_string_add(json, "vxlanInterface", | |
606 | zvni->vxlan_if->name); | |
607 | json_object_int_add(json, "ifindex", zvni->vxlan_if->ifindex); | |
608 | json_object_string_add(json, "vtepIp", | |
609 | inet_ntoa(zvni->local_vtep_ip)); | |
ddd16ed5 MK |
610 | json_object_string_add(json, "advertiseGatewayMacip", |
611 | zvni->advertise_gw_macip ? "Yes" : "No"); | |
cd233079 CS |
612 | json_object_int_add(json, "numMacs", num_macs); |
613 | json_object_int_add(json, "numArpNd", num_neigh); | |
614 | } | |
d62a17ae | 615 | if (!zvni->vteps) { |
cd233079 CS |
616 | if (json == NULL) |
617 | vty_out(vty, " No remote VTEPs known for this VNI\n"); | |
d62a17ae | 618 | } else { |
cd233079 CS |
619 | if (json == NULL) |
620 | vty_out(vty, " Remote VTEPs for this VNI:\n"); | |
621 | else | |
622 | json_vtep_list = json_object_new_array(); | |
623 | for (zvtep = zvni->vteps; zvtep; zvtep = zvtep->next) { | |
624 | if (json == NULL) | |
625 | vty_out(vty, " %s\n", | |
626 | inet_ntoa(zvtep->vtep_ip)); | |
627 | else { | |
628 | json_ip_str = json_object_new_string( | |
629 | inet_ntoa(zvtep->vtep_ip)); | |
630 | json_object_array_add(json_vtep_list, | |
631 | json_ip_str); | |
632 | } | |
633 | } | |
634 | if (json) | |
635 | json_object_object_add(json, "numRemoteVteps", | |
636 | json_vtep_list); | |
637 | } | |
638 | if (json == NULL) { | |
639 | vty_out(vty, | |
640 | " Number of MACs (local and remote) known for this VNI: %u\n", | |
641 | num_macs); | |
642 | vty_out(vty, | |
643 | " Number of ARPs (IPv4 and IPv6, local and remote) " | |
644 | "known for this VNI: %u\n", | |
645 | num_neigh); | |
ddd16ed5 MK |
646 | vty_out(vty, " Advertise-gw-macip: %s\n", |
647 | zvni->advertise_gw_macip ? "Yes" : "No"); | |
d62a17ae | 648 | } |
cec2e17d | 649 | } |
650 | ||
651 | /* | |
652 | * Print a VNI hash entry - called for display of all VNIs. | |
653 | */ | |
cd233079 | 654 | static void zvni_print_hash(struct hash_backet *backet, void *ctxt[]) |
cec2e17d | 655 | { |
d62a17ae | 656 | struct vty *vty; |
657 | zebra_vni_t *zvni; | |
658 | zebra_vtep_t *zvtep; | |
659 | u_int32_t num_vteps = 0; | |
660 | u_int32_t num_macs = 0; | |
661 | u_int32_t num_neigh = 0; | |
cd233079 CS |
662 | json_object *json = NULL; |
663 | json_object *json_vni = NULL; | |
664 | json_object *json_ip_str = NULL; | |
665 | json_object *json_vtep_list = NULL; | |
666 | ||
667 | vty = ctxt[0]; | |
668 | json = ctxt[1]; | |
cec2e17d | 669 | |
d62a17ae | 670 | zvni = (zebra_vni_t *)backet->data; |
671 | if (!zvni) | |
672 | return; | |
cec2e17d | 673 | |
d62a17ae | 674 | zvtep = zvni->vteps; |
675 | while (zvtep) { | |
676 | num_vteps++; | |
677 | zvtep = zvtep->next; | |
678 | } | |
cec2e17d | 679 | |
d62a17ae | 680 | num_macs = hashcount(zvni->mac_table); |
681 | num_neigh = hashcount(zvni->neigh_table); | |
cd233079 CS |
682 | if (json == NULL) |
683 | vty_out(vty, "%-10u %-21s %-15s %-8u %-8u %-15u\n", zvni->vni, | |
684 | zvni->vxlan_if ? zvni->vxlan_if->name : "unknown", | |
685 | inet_ntoa(zvni->local_vtep_ip), num_macs, num_neigh, | |
686 | num_vteps); | |
687 | else { | |
688 | char vni_str[VNI_STR_LEN]; | |
689 | snprintf(vni_str, VNI_STR_LEN, "%u", zvni->vni); | |
690 | json_vni = json_object_new_object(); | |
691 | json_object_string_add(json_vni, "vxlanIf", | |
692 | zvni->vxlan_if ? zvni->vxlan_if->name | |
693 | : "unknown"); | |
694 | json_object_string_add(json_vni, "vtepIp", | |
695 | inet_ntoa(zvni->local_vtep_ip)); | |
696 | json_object_int_add(json_vni, "numMacs", num_macs); | |
697 | json_object_int_add(json_vni, "numArpNd", num_neigh); | |
698 | json_object_int_add(json_vni, "numRemoteVteps", num_vteps); | |
699 | if (num_vteps) { | |
700 | json_vtep_list = json_object_new_array(); | |
701 | for (zvtep = zvni->vteps; zvtep; zvtep = zvtep->next) { | |
702 | json_ip_str = json_object_new_string( | |
703 | inet_ntoa(zvtep->vtep_ip)); | |
704 | json_object_array_add(json_vtep_list, | |
705 | json_ip_str); | |
706 | } | |
707 | json_object_object_add(json_vni, "remoteVteps", | |
708 | json_vtep_list); | |
709 | } | |
710 | json_object_object_add(json, vni_str, json_vni); | |
711 | } | |
cec2e17d | 712 | } |
713 | ||
13d60d35 | 714 | /* |
2232a77c | 715 | * Inform BGP about local MACIP. |
716 | */ | |
d62a17ae | 717 | static int zvni_macip_send_msg_to_client(struct zebra_vrf *zvrf, vni_t vni, |
718 | struct ethaddr *macaddr, | |
1a98c087 | 719 | struct ipaddr *ip, u_char flags, |
d62a17ae | 720 | u_int16_t cmd) |
721 | { | |
722 | struct zserv *client; | |
723 | struct stream *s; | |
724 | int ipa_len; | |
725 | char buf[ETHER_ADDR_STRLEN]; | |
726 | char buf2[INET6_ADDRSTRLEN]; | |
727 | ||
728 | client = zebra_find_client(ZEBRA_ROUTE_BGP); | |
729 | /* BGP may not be running. */ | |
730 | if (!client) | |
731 | return 0; | |
732 | ||
733 | s = client->obuf; | |
734 | stream_reset(s); | |
735 | ||
736 | zserv_create_header(s, cmd, zvrf_id(zvrf)); | |
737 | stream_putl(s, vni); | |
ff8b7eb8 | 738 | stream_put(s, macaddr->octet, ETH_ALEN); |
d62a17ae | 739 | if (ip) { |
740 | ipa_len = 0; | |
741 | if (IS_IPADDR_V4(ip)) | |
742 | ipa_len = IPV4_MAX_BYTELEN; | |
743 | else if (IS_IPADDR_V6(ip)) | |
744 | ipa_len = IPV6_MAX_BYTELEN; | |
745 | ||
746 | stream_putl(s, ipa_len); /* IP address length */ | |
747 | if (ipa_len) | |
748 | stream_put(s, &ip->ip.addr, ipa_len); /* IP address */ | |
749 | } else | |
750 | stream_putl(s, 0); /* Just MAC. */ | |
751 | ||
1a98c087 | 752 | stream_putc(s, flags); /* sticky mac/gateway mac */ |
d62a17ae | 753 | |
754 | /* Write packet size. */ | |
755 | stream_putw_at(s, 0, stream_get_endp(s)); | |
756 | ||
757 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1a98c087 MK |
758 | zlog_debug( |
759 | "%u:Send MACIP %s flags 0x%x MAC %s IP %s VNI %u to %s", | |
760 | zvrf_id(zvrf), (cmd == ZEBRA_MACIP_ADD) ? "Add" : "Del", | |
761 | flags, prefix_mac2str(macaddr, buf, sizeof(buf)), | |
762 | ipaddr2str(ip, buf2, sizeof(buf2)), vni, | |
763 | zebra_route_string(client->proto)); | |
d62a17ae | 764 | |
765 | if (cmd == ZEBRA_MACIP_ADD) | |
766 | client->macipadd_cnt++; | |
767 | else | |
768 | client->macipdel_cnt++; | |
769 | ||
770 | return zebra_server_send_message(client); | |
2232a77c | 771 | } |
772 | ||
773 | /* | |
774 | * Make hash key for neighbors. | |
13d60d35 | 775 | */ |
d62a17ae | 776 | static unsigned int neigh_hash_keymake(void *p) |
13d60d35 | 777 | { |
d62a17ae | 778 | zebra_neigh_t *n = p; |
779 | struct ipaddr *ip = &n->ip; | |
13d60d35 | 780 | |
d62a17ae | 781 | if (IS_IPADDR_V4(ip)) |
782 | return jhash_1word(ip->ipaddr_v4.s_addr, 0); | |
2232a77c | 783 | |
d62a17ae | 784 | return jhash2(ip->ipaddr_v6.s6_addr32, |
785 | ZEBRA_NUM_OF(ip->ipaddr_v6.s6_addr32), 0); | |
13d60d35 | 786 | } |
787 | ||
788 | /* | |
2232a77c | 789 | * Compare two neighbor hash structures. |
13d60d35 | 790 | */ |
d62a17ae | 791 | static int neigh_cmp(const void *p1, const void *p2) |
13d60d35 | 792 | { |
d62a17ae | 793 | const zebra_neigh_t *n1 = p1; |
794 | const zebra_neigh_t *n2 = p2; | |
13d60d35 | 795 | |
d62a17ae | 796 | if (n1 == NULL && n2 == NULL) |
797 | return 1; | |
2232a77c | 798 | |
d62a17ae | 799 | if (n1 == NULL || n2 == NULL) |
800 | return 0; | |
2232a77c | 801 | |
d62a17ae | 802 | return (memcmp(&n1->ip, &n2->ip, sizeof(struct ipaddr)) == 0); |
13d60d35 | 803 | } |
804 | ||
805 | /* | |
2232a77c | 806 | * Callback to allocate neighbor hash entry. |
13d60d35 | 807 | */ |
d62a17ae | 808 | static void *zvni_neigh_alloc(void *p) |
13d60d35 | 809 | { |
d62a17ae | 810 | const zebra_neigh_t *tmp_n = p; |
811 | zebra_neigh_t *n; | |
13d60d35 | 812 | |
d62a17ae | 813 | n = XCALLOC(MTYPE_NEIGH, sizeof(zebra_neigh_t)); |
814 | *n = *tmp_n; | |
2232a77c | 815 | |
d62a17ae | 816 | return ((void *)n); |
13d60d35 | 817 | } |
818 | ||
819 | /* | |
2232a77c | 820 | * Add neighbor entry. |
13d60d35 | 821 | */ |
b6938a74 MK |
822 | static zebra_neigh_t *zvni_neigh_add(zebra_vni_t *zvni, struct ipaddr *ip, |
823 | struct ethaddr *mac) | |
13d60d35 | 824 | { |
d62a17ae | 825 | zebra_neigh_t tmp_n; |
826 | zebra_neigh_t *n = NULL; | |
b6938a74 | 827 | zebra_mac_t *zmac = NULL; |
13d60d35 | 828 | |
d62a17ae | 829 | memset(&tmp_n, 0, sizeof(zebra_neigh_t)); |
830 | memcpy(&tmp_n.ip, ip, sizeof(struct ipaddr)); | |
831 | n = hash_get(zvni->neigh_table, &tmp_n, zvni_neigh_alloc); | |
832 | assert(n); | |
13d60d35 | 833 | |
b6938a74 MK |
834 | memcpy(&n->emac, mac, ETH_ALEN); |
835 | n->state = ZEBRA_NEIGH_INACTIVE; | |
836 | ||
837 | /* Associate the neigh to mac */ | |
838 | zmac = zvni_mac_lookup(zvni, mac); | |
839 | if (zmac) | |
840 | listnode_add_sort(zmac->neigh_list, n); | |
841 | ||
d62a17ae | 842 | return n; |
13d60d35 | 843 | } |
844 | ||
845 | /* | |
2232a77c | 846 | * Delete neighbor entry. |
13d60d35 | 847 | */ |
d62a17ae | 848 | static int zvni_neigh_del(zebra_vni_t *zvni, zebra_neigh_t *n) |
13d60d35 | 849 | { |
d62a17ae | 850 | zebra_neigh_t *tmp_n; |
b6938a74 MK |
851 | zebra_mac_t *zmac = NULL; |
852 | ||
853 | zmac = zvni_mac_lookup(zvni, &n->emac); | |
854 | if (zmac) | |
855 | listnode_delete(zmac->neigh_list, n); | |
13d60d35 | 856 | |
d62a17ae | 857 | /* Free the VNI hash entry and allocated memory. */ |
858 | tmp_n = hash_release(zvni->neigh_table, n); | |
859 | if (tmp_n) | |
860 | XFREE(MTYPE_NEIGH, tmp_n); | |
13d60d35 | 861 | |
d62a17ae | 862 | return 0; |
13d60d35 | 863 | } |
864 | ||
865 | /* | |
2232a77c | 866 | * Free neighbor hash entry (callback) |
13d60d35 | 867 | */ |
d62a17ae | 868 | static int zvni_neigh_del_hash_entry(struct hash_backet *backet, void *arg) |
13d60d35 | 869 | { |
d62a17ae | 870 | struct neigh_walk_ctx *wctx = arg; |
871 | zebra_neigh_t *n = backet->data; | |
2232a77c | 872 | |
d62a17ae | 873 | if (((wctx->flags & DEL_LOCAL_NEIGH) && (n->flags & ZEBRA_NEIGH_LOCAL)) |
874 | || ((wctx->flags & DEL_REMOTE_NEIGH) | |
875 | && (n->flags & ZEBRA_NEIGH_REMOTE)) | |
876 | || ((wctx->flags & DEL_REMOTE_NEIGH_FROM_VTEP) | |
877 | && (n->flags & ZEBRA_NEIGH_REMOTE) | |
878 | && IPV4_ADDR_SAME(&n->r_vtep_ip, &wctx->r_vtep_ip))) { | |
879 | if (wctx->upd_client && (n->flags & ZEBRA_NEIGH_LOCAL)) | |
1a98c087 MK |
880 | zvni_neigh_send_del_to_client(wctx->zvrf, |
881 | wctx->zvni->vni, &n->ip, | |
882 | &n->emac, 0); | |
13d60d35 | 883 | |
d62a17ae | 884 | if (wctx->uninstall) |
885 | zvni_neigh_uninstall(wctx->zvni, n); | |
13d60d35 | 886 | |
d62a17ae | 887 | return zvni_neigh_del(wctx->zvni, n); |
888 | } | |
13d60d35 | 889 | |
d62a17ae | 890 | return 0; |
13d60d35 | 891 | } |
892 | ||
893 | /* | |
2232a77c | 894 | * Delete all neighbor entries from specific VTEP for a particular VNI. |
13d60d35 | 895 | */ |
d62a17ae | 896 | static void zvni_neigh_del_from_vtep(zebra_vni_t *zvni, int uninstall, |
897 | struct in_addr *r_vtep_ip) | |
13d60d35 | 898 | { |
d62a17ae | 899 | struct neigh_walk_ctx wctx; |
13d60d35 | 900 | |
d62a17ae | 901 | if (!zvni->neigh_table) |
902 | return; | |
13d60d35 | 903 | |
d62a17ae | 904 | memset(&wctx, 0, sizeof(struct neigh_walk_ctx)); |
905 | wctx.zvni = zvni; | |
906 | wctx.uninstall = uninstall; | |
907 | wctx.flags = DEL_REMOTE_NEIGH_FROM_VTEP; | |
908 | wctx.r_vtep_ip = *r_vtep_ip; | |
13d60d35 | 909 | |
d62a17ae | 910 | hash_iterate(zvni->neigh_table, |
911 | (void (*)(struct hash_backet *, | |
912 | void *))zvni_neigh_del_hash_entry, | |
913 | &wctx); | |
2232a77c | 914 | } |
13d60d35 | 915 | |
2232a77c | 916 | /* |
917 | * Delete all neighbor entries for this VNI. | |
918 | */ | |
d62a17ae | 919 | static void zvni_neigh_del_all(struct zebra_vrf *zvrf, zebra_vni_t *zvni, |
920 | int uninstall, int upd_client, u_int32_t flags) | |
2232a77c | 921 | { |
d62a17ae | 922 | struct neigh_walk_ctx wctx; |
13d60d35 | 923 | |
d62a17ae | 924 | if (!zvni->neigh_table) |
925 | return; | |
13d60d35 | 926 | |
d62a17ae | 927 | memset(&wctx, 0, sizeof(struct neigh_walk_ctx)); |
928 | wctx.zvni = zvni; | |
929 | wctx.zvrf = zvrf; | |
930 | wctx.uninstall = uninstall; | |
931 | wctx.upd_client = upd_client; | |
932 | wctx.flags = flags; | |
2232a77c | 933 | |
d62a17ae | 934 | hash_iterate(zvni->neigh_table, |
935 | (void (*)(struct hash_backet *, | |
936 | void *))zvni_neigh_del_hash_entry, | |
937 | &wctx); | |
13d60d35 | 938 | } |
939 | ||
940 | /* | |
2232a77c | 941 | * Look up neighbor hash entry. |
942 | */ | |
d62a17ae | 943 | static zebra_neigh_t *zvni_neigh_lookup(zebra_vni_t *zvni, struct ipaddr *ip) |
2232a77c | 944 | { |
d62a17ae | 945 | zebra_neigh_t tmp; |
946 | zebra_neigh_t *n; | |
2232a77c | 947 | |
d62a17ae | 948 | memset(&tmp, 0, sizeof(tmp)); |
949 | memcpy(&tmp.ip, ip, sizeof(struct ipaddr)); | |
950 | n = hash_lookup(zvni->neigh_table, &tmp); | |
2232a77c | 951 | |
d62a17ae | 952 | return n; |
2232a77c | 953 | } |
954 | ||
b6938a74 MK |
955 | /* Process all neigh associated to a mac upon local mac add event */ |
956 | static void zvni_process_neigh_on_local_mac_add(struct zebra_vrf *zvrf, | |
957 | zebra_vni_t *zvni, | |
958 | zebra_mac_t *zmac) | |
959 | { | |
960 | zebra_neigh_t *n = NULL; | |
961 | struct listnode *node = NULL; | |
962 | char buf[ETHER_ADDR_STRLEN]; | |
963 | char buf2[INET6_ADDRSTRLEN]; | |
964 | ||
965 | for (ALL_LIST_ELEMENTS_RO(zmac->neigh_list, node, n)) { | |
966 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) { | |
967 | /* MAC is learnt locally, program all inactive neigh | |
968 | * pointing to this mac */ | |
969 | if (IS_ZEBRA_NEIGH_INACTIVE(n)) { | |
970 | if (IS_ZEBRA_DEBUG_VXLAN) | |
971 | zlog_debug( | |
972 | "%u: neigh %s (MAC %s) on VNI %u is now ACTIVE", | |
973 | zvrf_id(zvrf), | |
974 | ipaddr2str(&n->ip, buf2, | |
975 | sizeof(buf2)), | |
976 | prefix_mac2str(&n->emac, buf, | |
977 | sizeof(buf)), | |
978 | zvni->vni); | |
979 | ||
980 | ZEBRA_NEIGH_SET_ACTIVE(n); | |
981 | zvni_neigh_send_add_to_client( | |
982 | zvrf, zvni->vni, &n->ip, &n->emac, 0); | |
983 | } else { | |
984 | if (IS_ZEBRA_DEBUG_VXLAN) | |
985 | zlog_debug( | |
986 | "%u: neigh %s (MAC %s) on VNI %u should NOT be ACTIVE", | |
987 | zvrf_id(zvrf), | |
988 | ipaddr2str(&n->ip, buf2, | |
989 | sizeof(buf2)), | |
990 | prefix_mac2str(&n->emac, buf, | |
991 | sizeof(buf)), | |
992 | zvni->vni); | |
993 | } | |
994 | } else if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) { | |
995 | /* TODO: assume the neigh has moved too ?? */ | |
996 | } | |
997 | } | |
998 | } | |
999 | ||
1000 | /* Process all neigh associated to a mac upon local mac del event */ | |
1001 | static void zvni_process_neigh_on_local_mac_del(struct zebra_vrf *zvrf, | |
1002 | zebra_vni_t *zvni, | |
1003 | zebra_mac_t *zmac) | |
1004 | { | |
1005 | zebra_neigh_t *n = NULL; | |
1006 | struct listnode *node = NULL; | |
1007 | char buf[ETHER_ADDR_STRLEN]; | |
1008 | char buf2[INET6_ADDRSTRLEN]; | |
1009 | ||
1010 | for (ALL_LIST_ELEMENTS_RO(zmac->neigh_list, node, n)) { | |
1011 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) { | |
1012 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) { | |
1013 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1014 | zlog_debug( | |
1015 | "%u: neigh %s (MAC %s) on VNI %u is now INACTIVE", | |
1016 | zvrf_id(zvrf), | |
1017 | ipaddr2str(&n->ip, buf2, | |
1018 | sizeof(buf2)), | |
1019 | prefix_mac2str(&n->emac, buf, | |
1020 | sizeof(buf)), | |
1021 | zvni->vni); | |
1022 | ||
1023 | ZEBRA_NEIGH_SET_INACTIVE(n); | |
1024 | zvni_neigh_send_del_to_client( | |
1025 | zvrf, zvni->vni, &n->ip, &n->emac, 0); | |
1026 | } | |
1027 | } else if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) { | |
1028 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1029 | zlog_err( | |
1030 | "%u: local MAC %s getting deleted on VNI %u has remote neigh %s", | |
1031 | zvrf_id(zvrf), | |
1032 | prefix_mac2str(&n->emac, buf, | |
1033 | sizeof(buf)), | |
1034 | zvni->vni, | |
1035 | ipaddr2str(&n->ip, buf2, sizeof(buf2))); | |
1036 | } | |
1037 | } | |
1038 | } | |
1039 | ||
1040 | /* process all neigh associated to a mac entry upon remote mac add */ | |
1041 | static void zvni_process_neigh_on_remote_mac_add(struct zebra_vrf *zvrf, | |
1042 | zebra_vni_t *zvni, | |
1043 | zebra_mac_t *zmac) | |
1044 | { | |
1045 | zebra_neigh_t *n = NULL; | |
1046 | struct listnode *node = NULL; | |
1047 | char buf[ETHER_ADDR_STRLEN]; | |
1048 | char buf2[INET6_ADDRSTRLEN]; | |
1049 | ||
1050 | for (ALL_LIST_ELEMENTS_RO(zmac->neigh_list, node, n)) { | |
1051 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) { | |
1052 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) { | |
1053 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1054 | zlog_debug( | |
1055 | "%u: neigh %s (MAC %s) on VNI %u INACTIVE", | |
1056 | zvrf_id(zvrf), | |
1057 | ipaddr2str(&n->ip, buf2, | |
1058 | sizeof(buf2)), | |
1059 | prefix_mac2str(&n->emac, buf, | |
1060 | sizeof(buf)), | |
1061 | zvni->vni); | |
1062 | ||
1063 | ZEBRA_NEIGH_SET_INACTIVE(n); | |
1064 | zvni_neigh_send_del_to_client( | |
1065 | zvrf, zvni->vni, &n->ip, &n->emac, 0); | |
1066 | } | |
1067 | } | |
1068 | } | |
1069 | } | |
1070 | ||
1071 | /* process all neigh associated to mac entry upon remote mac del */ | |
1072 | static void zvni_process_neigh_on_remote_mac_del(struct zebra_vrf *zvrf, | |
1073 | zebra_vni_t *zvni, | |
1074 | zebra_mac_t *zmac) | |
1075 | { | |
1076 | zebra_neigh_t *n = NULL; | |
1077 | struct listnode *node = NULL; | |
1078 | char buf[ETHER_ADDR_STRLEN]; | |
1079 | char buf2[INET6_ADDRSTRLEN]; | |
1080 | ||
1081 | for (ALL_LIST_ELEMENTS_RO(zmac->neigh_list, node, n)) { | |
1082 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) { | |
1083 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1084 | zlog_err( | |
1085 | "%u: remote MAC %s getting deleted on VNI %u has local neigh %s", | |
1086 | zvrf_id(zvrf), | |
1087 | prefix_mac2str(&n->emac, buf, | |
1088 | sizeof(buf)), | |
1089 | zvni->vni, | |
1090 | ipaddr2str(&n->ip, buf2, sizeof(buf2))); | |
1091 | } | |
1092 | } | |
1093 | } | |
1094 | ||
2232a77c | 1095 | /* |
1096 | * Inform BGP about local neighbor addition. | |
13d60d35 | 1097 | */ |
d62a17ae | 1098 | static int zvni_neigh_send_add_to_client(struct zebra_vrf *zvrf, vni_t vni, |
1099 | struct ipaddr *ip, | |
1a98c087 | 1100 | struct ethaddr *macaddr, u_char flags) |
13d60d35 | 1101 | { |
1a98c087 | 1102 | return zvni_macip_send_msg_to_client(zvrf, vni, macaddr, ip, flags, |
d62a17ae | 1103 | ZEBRA_MACIP_ADD); |
2232a77c | 1104 | } |
13d60d35 | 1105 | |
2232a77c | 1106 | /* |
1107 | * Inform BGP about local neighbor deletion. | |
1108 | */ | |
d62a17ae | 1109 | static int zvni_neigh_send_del_to_client(struct zebra_vrf *zvrf, vni_t vni, |
1110 | struct ipaddr *ip, | |
1a98c087 | 1111 | struct ethaddr *macaddr, u_char flags) |
2232a77c | 1112 | { |
1a98c087 | 1113 | return zvni_macip_send_msg_to_client(zvrf, vni, macaddr, ip, flags, |
d62a17ae | 1114 | ZEBRA_MACIP_DEL); |
2232a77c | 1115 | } |
1116 | ||
1117 | /* | |
1118 | * Install remote neighbor into the kernel. | |
1119 | */ | |
d62a17ae | 1120 | static int zvni_neigh_install(zebra_vni_t *zvni, zebra_neigh_t *n) |
2232a77c | 1121 | { |
d62a17ae | 1122 | struct zebra_vrf *zvrf; |
1123 | struct zebra_if *zif; | |
1124 | struct zebra_l2info_vxlan *vxl; | |
1125 | struct interface *vlan_if; | |
2232a77c | 1126 | |
d62a17ae | 1127 | if (!(n->flags & ZEBRA_NEIGH_REMOTE)) |
1128 | return 0; | |
13d60d35 | 1129 | |
d62a17ae | 1130 | zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id); |
1131 | assert(zvrf); | |
1132 | zif = zvni->vxlan_if->info; | |
1133 | if (!zif) | |
1134 | return -1; | |
1135 | vxl = &zif->l2info.vxl; | |
13d60d35 | 1136 | |
d62a17ae | 1137 | vlan_if = zvni_map_to_svi(zvrf, vxl->access_vlan, |
1138 | zif->brslave_info.br_if); | |
1139 | if (!vlan_if) | |
1140 | return -1; | |
13d60d35 | 1141 | |
d62a17ae | 1142 | return kernel_add_neigh(vlan_if, &n->ip, &n->emac); |
2232a77c | 1143 | } |
13d60d35 | 1144 | |
2232a77c | 1145 | /* |
1146 | * Uninstall remote neighbor from the kernel. | |
1147 | */ | |
d62a17ae | 1148 | static int zvni_neigh_uninstall(zebra_vni_t *zvni, zebra_neigh_t *n) |
2232a77c | 1149 | { |
d62a17ae | 1150 | struct zebra_vrf *zvrf; |
1151 | struct zebra_if *zif; | |
1152 | struct zebra_l2info_vxlan *vxl; | |
1153 | struct interface *vlan_if; | |
13d60d35 | 1154 | |
d62a17ae | 1155 | if (!(n->flags & ZEBRA_NEIGH_REMOTE)) |
1156 | return 0; | |
2232a77c | 1157 | |
d62a17ae | 1158 | zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id); |
1159 | assert(zvrf); | |
1160 | if (!zvni->vxlan_if) { | |
1161 | zlog_err("VNI %u hash %p couldn't be uninstalled - no intf", | |
1162 | zvni->vni, zvni); | |
1163 | return -1; | |
1164 | } | |
2232a77c | 1165 | |
d62a17ae | 1166 | zif = zvni->vxlan_if->info; |
1167 | if (!zif) | |
1168 | return -1; | |
1169 | vxl = &zif->l2info.vxl; | |
1170 | vlan_if = zvni_map_to_svi(zvrf, vxl->access_vlan, | |
1171 | zif->brslave_info.br_if); | |
1172 | if (!vlan_if) | |
1173 | return -1; | |
2232a77c | 1174 | |
d62a17ae | 1175 | return kernel_del_neigh(vlan_if, &n->ip); |
13d60d35 | 1176 | } |
1177 | ||
1178 | /* | |
2232a77c | 1179 | * Install neighbor hash entry - called upon access VLAN change. |
13d60d35 | 1180 | */ |
d62a17ae | 1181 | static void zvni_install_neigh_hash(struct hash_backet *backet, void *ctxt) |
13d60d35 | 1182 | { |
d62a17ae | 1183 | zebra_neigh_t *n; |
1184 | struct neigh_walk_ctx *wctx = ctxt; | |
13d60d35 | 1185 | |
d62a17ae | 1186 | n = (zebra_neigh_t *)backet->data; |
1187 | if (!n) | |
1188 | return; | |
13d60d35 | 1189 | |
d62a17ae | 1190 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) |
1191 | zvni_neigh_install(wctx->zvni, n); | |
2232a77c | 1192 | } |
13d60d35 | 1193 | |
1a98c087 MK |
1194 | /* Get the VRR interface for SVI if any */ |
1195 | struct interface *zebra_get_vrr_intf_for_svi(struct interface *ifp) | |
1196 | { | |
1197 | struct zebra_vrf *zvrf = NULL; | |
1198 | struct interface *tmp_if = NULL; | |
1199 | struct zebra_if *zif = NULL; | |
1200 | struct listnode *node; | |
1201 | ||
1202 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
1203 | assert(zvrf); | |
1204 | ||
1205 | for (ALL_LIST_ELEMENTS_RO(vrf_iflist(zvrf_id(zvrf)), node, tmp_if)) { | |
1206 | zif = tmp_if->info; | |
1207 | if (!zif) | |
1208 | continue; | |
1209 | ||
1210 | if (!IS_ZEBRA_IF_MACVLAN(tmp_if)) | |
1211 | continue; | |
1212 | ||
1213 | if (zif->link == ifp) | |
1214 | return tmp_if; | |
1215 | } | |
1216 | ||
1217 | return NULL; | |
1218 | } | |
1219 | ||
1220 | static int zvni_del_macip_for_intf(struct interface *ifp, zebra_vni_t *zvni) | |
1221 | { | |
1222 | struct zebra_vrf *zvrf = NULL; | |
1223 | struct listnode *cnode = NULL, *cnnode = NULL; | |
1224 | struct connected *c = NULL; | |
1225 | struct ethaddr macaddr; | |
1226 | ||
1227 | zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id); | |
1228 | if (!zvrf) | |
1229 | return -1; | |
1230 | ||
1231 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
1232 | ||
1233 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
1234 | struct ipaddr ip; | |
1235 | ||
1236 | memset(&ip, 0, sizeof(struct ipaddr)); | |
1237 | if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) | |
1238 | continue; | |
1239 | ||
1240 | if (c->address->family == AF_INET) { | |
1241 | ip.ipa_type = IPADDR_V4; | |
1242 | memcpy(&(ip.ipaddr_v4), &(c->address->u.prefix4), | |
1243 | sizeof(struct in_addr)); | |
1244 | } else if (c->address->family == AF_INET6) { | |
1245 | ip.ipa_type = IPADDR_V6; | |
1246 | memcpy(&(ip.ipaddr_v6), &(c->address->u.prefix6), | |
1247 | sizeof(struct in6_addr)); | |
1248 | } else { | |
1249 | continue; | |
1250 | } | |
1251 | ||
1252 | zvni_gw_macip_del(ifp, zvni, &ip); | |
1253 | } | |
1254 | ||
1255 | return 0; | |
1256 | } | |
1257 | ||
1258 | static int zvni_add_macip_for_intf(struct interface *ifp, zebra_vni_t *zvni) | |
1259 | { | |
1260 | struct zebra_vrf *zvrf = NULL; | |
1261 | struct listnode *cnode = NULL, *cnnode = NULL; | |
1262 | struct connected *c = NULL; | |
1263 | struct ethaddr macaddr; | |
1264 | ||
1265 | zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id); | |
1266 | if (!zvrf) | |
1267 | return -1; | |
1268 | ||
1269 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
1270 | ||
1271 | for (ALL_LIST_ELEMENTS(ifp->connected, cnode, cnnode, c)) { | |
1272 | struct ipaddr ip; | |
1273 | ||
1274 | memset(&ip, 0, sizeof(struct ipaddr)); | |
1275 | if (!CHECK_FLAG(c->conf, ZEBRA_IFC_REAL)) | |
1276 | continue; | |
1277 | ||
1278 | if (c->address->family == AF_INET) { | |
1279 | ip.ipa_type = IPADDR_V4; | |
1280 | memcpy(&(ip.ipaddr_v4), &(c->address->u.prefix4), | |
1281 | sizeof(struct in_addr)); | |
1282 | } else if (c->address->family == AF_INET6) { | |
1283 | ip.ipa_type = IPADDR_V6; | |
1284 | memcpy(&(ip.ipaddr_v6), &(c->address->u.prefix6), | |
1285 | sizeof(struct in6_addr)); | |
1286 | } else { | |
1287 | continue; | |
1288 | } | |
1289 | ||
1290 | zvni_gw_macip_add(ifp, zvni, &macaddr, &ip); | |
1291 | } | |
1292 | ||
1293 | return 0; | |
1294 | } | |
1295 | ||
1296 | /* | |
1297 | * zvni_gw_macip_add_to_client | |
1298 | */ | |
1299 | static int zvni_gw_macip_add(struct interface *ifp, zebra_vni_t *zvni, | |
1300 | struct ethaddr *macaddr, struct ipaddr *ip) | |
1301 | { | |
1302 | struct zebra_vrf *zvrf = NULL; | |
1303 | struct zebra_if *zif = NULL; | |
1304 | struct zebra_l2info_vxlan *vxl = NULL; | |
1305 | zebra_neigh_t *n = NULL; | |
1306 | zebra_mac_t *mac = NULL; | |
1307 | char buf[ETHER_ADDR_STRLEN]; | |
1308 | char buf2[INET6_ADDRSTRLEN]; | |
1309 | ||
1310 | zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id); | |
1311 | if (!zvrf) | |
1312 | return -1; | |
1313 | ||
1314 | zif = zvni->vxlan_if->info; | |
1315 | if (!zif) | |
1316 | return -1; | |
1317 | ||
1318 | vxl = &zif->l2info.vxl; | |
1319 | ||
1320 | mac = zvni_mac_lookup(zvni, macaddr); | |
1321 | if (!mac) { | |
1322 | mac = zvni_mac_add(zvni, macaddr); | |
1323 | if (!mac) { | |
1324 | zlog_err("%u:Failed to add MAC %s intf %s(%u) VID %u", | |
1325 | ifp->vrf_id, | |
1326 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
1327 | ifp->name, ifp->ifindex, vxl->access_vlan); | |
1328 | return -1; | |
1329 | } | |
1330 | } | |
1331 | ||
1332 | /* Set "local" forwarding info. */ | |
1333 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
1334 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
1335 | memset(&mac->fwd_info, 0, sizeof(mac->fwd_info)); | |
1336 | mac->fwd_info.local.ifindex = ifp->ifindex; | |
1337 | mac->fwd_info.local.vid = vxl->access_vlan; | |
1338 | ||
1339 | n = zvni_neigh_lookup(zvni, ip); | |
1340 | if (!n) { | |
b6938a74 | 1341 | n = zvni_neigh_add(zvni, ip, macaddr); |
1a98c087 MK |
1342 | if (!n) { |
1343 | zlog_err( | |
1344 | "%u:Failed to add neighbor %s MAC %s intf %s(%u) -> VNI %u", | |
1345 | ifp->vrf_id, ipaddr2str(ip, buf2, sizeof(buf2)), | |
1346 | prefix_mac2str(macaddr, NULL, | |
1347 | ETHER_ADDR_STRLEN), | |
1348 | ifp->name, ifp->ifindex, zvni->vni); | |
1349 | return -1; | |
1350 | } | |
1351 | } | |
1352 | ||
1353 | /* Set "local" forwarding info. */ | |
1354 | SET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL); | |
1355 | memcpy(&n->emac, macaddr, ETH_ALEN); | |
1356 | n->ifindex = ifp->ifindex; | |
1357 | ||
1a98c087 MK |
1358 | if (IS_ZEBRA_DEBUG_VXLAN) |
1359 | zlog_debug( | |
1360 | "%u:SVI %s(%u) VNI %u, sending GW MAC %s IP %s add to BGP", | |
1361 | ifp->vrf_id, ifp->name, ifp->ifindex, zvni->vni, | |
1362 | prefix_mac2str(macaddr, NULL, ETHER_ADDR_STRLEN), | |
1363 | ipaddr2str(ip, buf2, sizeof(buf2))); | |
1364 | ||
1365 | zvni_neigh_send_add_to_client(zvrf, zvni->vni, ip, macaddr, | |
1366 | ZEBRA_MAC_TYPE_GW); | |
1367 | ||
1368 | return 0; | |
1369 | } | |
1370 | ||
1371 | /* | |
1372 | * zvni_gw_macip_del_from_client | |
1373 | */ | |
1374 | static int zvni_gw_macip_del(struct interface *ifp, zebra_vni_t *zvni, | |
1375 | struct ipaddr *ip) | |
1376 | { | |
1377 | struct zebra_vrf *zvrf = NULL; | |
1378 | zebra_neigh_t *n = NULL; | |
1379 | zebra_mac_t *mac = NULL; | |
1380 | char buf2[INET6_ADDRSTRLEN]; | |
1381 | ||
1382 | zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id); | |
1383 | if (!zvrf) | |
1384 | return -1; | |
1385 | ||
1386 | /* If the neigh entry is not present nothing to do*/ | |
1387 | n = zvni_neigh_lookup(zvni, ip); | |
1388 | if (!n) | |
1389 | return 0; | |
1390 | ||
1391 | /* mac entry should be present */ | |
1392 | mac = zvni_mac_lookup(zvni, &n->emac); | |
1393 | if (!mac) | |
1394 | zlog_err("%u: MAC %s doesnt exsists for neigh %s on VNI %u", | |
1395 | ifp->vrf_id, | |
1396 | prefix_mac2str(&n->emac, NULL, ETHER_ADDR_STRLEN), | |
1397 | ipaddr2str(ip, buf2, sizeof(buf2)), zvni->vni); | |
1398 | ||
1399 | /* If the entry is not local nothing to do*/ | |
1400 | if (!CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) | |
1401 | return -1; | |
1402 | ||
1403 | if (IS_ZEBRA_DEBUG_VXLAN) | |
1404 | zlog_debug( | |
1405 | "%u:SVI %s(%u) VNI %u, sending GW MAC %s IP %s del to BGP", | |
1406 | ifp->vrf_id, ifp->name, ifp->ifindex, zvni->vni, | |
1407 | prefix_mac2str(&(n->emac), NULL, ETHER_ADDR_STRLEN), | |
1408 | ipaddr2str(ip, buf2, sizeof(buf2))); | |
1409 | ||
1410 | /* Remove neighbor from BGP. */ | |
1411 | zvni_neigh_send_del_to_client(zvrf, zvni->vni, &n->ip, &n->emac, | |
1412 | ZEBRA_MAC_TYPE_GW); | |
1413 | ||
1414 | /* Delete this neighbor entry. */ | |
1415 | zvni_neigh_del(zvni, n); | |
1416 | ||
1417 | /* see if the mac needs to be deleted as well*/ | |
1418 | zvni_deref_ip2mac(zvni, mac, 0); | |
1419 | ||
1420 | return 0; | |
1421 | } | |
1422 | ||
1423 | static void zvni_gw_macip_del_for_vni_hash(struct hash_backet *backet, | |
1424 | void *zvrf) | |
1425 | { | |
1426 | zebra_vni_t *zvni = NULL; | |
1427 | struct zebra_if *zif = NULL; | |
1428 | struct zebra_l2info_vxlan zl2_info; | |
1429 | struct interface *vlan_if = NULL; | |
1430 | struct interface *vrr_if = NULL; | |
b5ebdc9b | 1431 | struct interface *ifp; |
1a98c087 MK |
1432 | |
1433 | /* Add primary SVI MAC*/ | |
1434 | zvni = (zebra_vni_t *)backet->data; | |
1435 | if (!zvni) | |
1436 | return; | |
1437 | ||
b5ebdc9b | 1438 | ifp = zvni->vxlan_if; |
1439 | if (!ifp) | |
1440 | return; | |
1441 | zif = ifp->info; | |
1442 | ||
1443 | /* If down or not mapped to a bridge, we're done. */ | |
b682f6de | 1444 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) |
b5ebdc9b | 1445 | return; |
1446 | ||
1a98c087 MK |
1447 | zl2_info = zif->l2info.vxl; |
1448 | ||
1449 | vlan_if = zvni_map_to_svi(zvrf, zl2_info.access_vlan, | |
1450 | zif->brslave_info.br_if); | |
1451 | if (!vlan_if) | |
1452 | return; | |
1453 | ||
1454 | /* Del primary MAC-IP */ | |
1455 | zvni_del_macip_for_intf(vlan_if, zvni); | |
1456 | ||
1457 | /* Del VRR MAC-IP - if any*/ | |
1458 | vrr_if = zebra_get_vrr_intf_for_svi(vlan_if); | |
1459 | if (vrr_if) | |
1460 | zvni_del_macip_for_intf(vrr_if, zvni); | |
1461 | ||
1462 | return; | |
1463 | } | |
1464 | ||
1465 | static void zvni_gw_macip_add_for_vni_hash(struct hash_backet *backet, | |
1466 | void *zvrf) | |
1467 | { | |
1468 | zebra_vni_t *zvni = NULL; | |
1469 | struct zebra_if *zif = NULL; | |
1470 | struct zebra_l2info_vxlan zl2_info; | |
1471 | struct interface *vlan_if = NULL; | |
1472 | struct interface *vrr_if = NULL; | |
b5ebdc9b | 1473 | struct interface *ifp = NULL; |
1a98c087 MK |
1474 | |
1475 | zvni = (zebra_vni_t *)backet->data; | |
1476 | if (!zvni) | |
1477 | return; | |
1478 | ||
1479 | if (!advertise_gw_macip_enabled(zvrf, zvni)) | |
1480 | return; | |
1481 | ||
b5ebdc9b | 1482 | ifp = zvni->vxlan_if; |
1483 | if (!ifp) | |
1484 | return; | |
1485 | zif = ifp->info; | |
1486 | ||
1487 | /* If down or not mapped to a bridge, we're done. */ | |
b682f6de | 1488 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) |
b5ebdc9b | 1489 | return; |
1a98c087 MK |
1490 | zl2_info = zif->l2info.vxl; |
1491 | ||
1492 | vlan_if = zvni_map_to_svi(zvrf, zl2_info.access_vlan, | |
1493 | zif->brslave_info.br_if); | |
1494 | if (!vlan_if) | |
1495 | return; | |
1496 | ||
1497 | if (!advertise_gw_macip_enabled(zvrf, zvni)) | |
1498 | return; | |
1499 | ||
1500 | /* Add primary SVI MAC-IP */ | |
1501 | zvni_add_macip_for_intf(vlan_if, zvni); | |
1502 | ||
1503 | /* Add VRR MAC-IP - if any*/ | |
1504 | vrr_if = zebra_get_vrr_intf_for_svi(vlan_if); | |
1505 | if (vrr_if) | |
1506 | zvni_add_macip_for_intf(vrr_if, zvni); | |
1507 | ||
1508 | return; | |
1509 | } | |
1510 | ||
2232a77c | 1511 | /* |
1512 | * Make hash key for MAC. | |
1513 | */ | |
d62a17ae | 1514 | static unsigned int mac_hash_keymake(void *p) |
2232a77c | 1515 | { |
d62a17ae | 1516 | zebra_mac_t *pmac = p; |
25331def DS |
1517 | const void *pnt = (void *)pmac->macaddr.octet; |
1518 | ||
ff8b7eb8 | 1519 | return jhash(pnt, ETH_ALEN, 0xa5a5a55a); |
2232a77c | 1520 | } |
13d60d35 | 1521 | |
2232a77c | 1522 | /* |
1523 | * Compare two MAC addresses. | |
1524 | */ | |
d62a17ae | 1525 | static int mac_cmp(const void *p1, const void *p2) |
2232a77c | 1526 | { |
d62a17ae | 1527 | const zebra_mac_t *pmac1 = p1; |
1528 | const zebra_mac_t *pmac2 = p2; | |
2232a77c | 1529 | |
d62a17ae | 1530 | if (pmac1 == NULL && pmac2 == NULL) |
1531 | return 1; | |
2232a77c | 1532 | |
d62a17ae | 1533 | if (pmac1 == NULL || pmac2 == NULL) |
1534 | return 0; | |
2232a77c | 1535 | |
d62a17ae | 1536 | return (memcmp(pmac1->macaddr.octet, pmac2->macaddr.octet, |
ff8b7eb8 | 1537 | ETH_ALEN) |
d62a17ae | 1538 | == 0); |
2232a77c | 1539 | } |
1540 | ||
1541 | /* | |
1542 | * Callback to allocate MAC hash entry. | |
1543 | */ | |
d62a17ae | 1544 | static void *zvni_mac_alloc(void *p) |
2232a77c | 1545 | { |
d62a17ae | 1546 | const zebra_mac_t *tmp_mac = p; |
1547 | zebra_mac_t *mac; | |
2232a77c | 1548 | |
d62a17ae | 1549 | mac = XCALLOC(MTYPE_MAC, sizeof(zebra_mac_t)); |
1550 | *mac = *tmp_mac; | |
2232a77c | 1551 | |
d62a17ae | 1552 | return ((void *)mac); |
2232a77c | 1553 | } |
1554 | ||
1555 | /* | |
1556 | * Add MAC entry. | |
1557 | */ | |
d62a17ae | 1558 | static zebra_mac_t *zvni_mac_add(zebra_vni_t *zvni, struct ethaddr *macaddr) |
2232a77c | 1559 | { |
d62a17ae | 1560 | zebra_mac_t tmp_mac; |
1561 | zebra_mac_t *mac = NULL; | |
2232a77c | 1562 | |
d62a17ae | 1563 | memset(&tmp_mac, 0, sizeof(zebra_mac_t)); |
ff8b7eb8 | 1564 | memcpy(&tmp_mac.macaddr, macaddr, ETH_ALEN); |
d62a17ae | 1565 | mac = hash_get(zvni->mac_table, &tmp_mac, zvni_mac_alloc); |
1566 | assert(mac); | |
2232a77c | 1567 | |
b6938a74 MK |
1568 | mac->neigh_list = list_new(); |
1569 | mac->neigh_list->cmp = (int (*)(void *, void *))neigh_cmp; | |
1570 | ||
d62a17ae | 1571 | return mac; |
2232a77c | 1572 | } |
1573 | ||
1574 | /* | |
1575 | * Delete MAC entry. | |
1576 | */ | |
d62a17ae | 1577 | static int zvni_mac_del(zebra_vni_t *zvni, zebra_mac_t *mac) |
2232a77c | 1578 | { |
d62a17ae | 1579 | zebra_mac_t *tmp_mac; |
2232a77c | 1580 | |
b6938a74 MK |
1581 | list_delete(mac->neigh_list); |
1582 | ||
d62a17ae | 1583 | /* Free the VNI hash entry and allocated memory. */ |
1584 | tmp_mac = hash_release(zvni->mac_table, mac); | |
1585 | if (tmp_mac) | |
1586 | XFREE(MTYPE_MAC, tmp_mac); | |
2232a77c | 1587 | |
d62a17ae | 1588 | return 0; |
2232a77c | 1589 | } |
1590 | ||
1591 | /* | |
1592 | * Free MAC hash entry (callback) | |
1593 | */ | |
d62a17ae | 1594 | static int zvni_mac_del_hash_entry(struct hash_backet *backet, void *arg) |
2232a77c | 1595 | { |
d62a17ae | 1596 | struct mac_walk_ctx *wctx = arg; |
1597 | zebra_mac_t *mac = backet->data; | |
1598 | u_char sticky = 0; | |
2232a77c | 1599 | |
d62a17ae | 1600 | if (((wctx->flags & DEL_LOCAL_MAC) && (mac->flags & ZEBRA_MAC_LOCAL)) |
1601 | || ((wctx->flags & DEL_REMOTE_MAC) | |
1602 | && (mac->flags & ZEBRA_MAC_REMOTE)) | |
1603 | || ((wctx->flags & DEL_REMOTE_MAC_FROM_VTEP) | |
1604 | && (mac->flags & ZEBRA_MAC_REMOTE) | |
1605 | && IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, | |
1606 | &wctx->r_vtep_ip))) { | |
1607 | if (wctx->upd_client && (mac->flags & ZEBRA_MAC_LOCAL)) { | |
1608 | sticky = CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) ? 1 | |
1609 | : 0; | |
1a98c087 MK |
1610 | zvni_mac_send_del_to_client( |
1611 | wctx->zvrf, wctx->zvni->vni, &mac->macaddr, | |
1612 | (sticky ? ZEBRA_MAC_TYPE_STICKY : 0)); | |
d62a17ae | 1613 | } |
2232a77c | 1614 | |
d62a17ae | 1615 | if (wctx->uninstall) |
1616 | zvni_mac_uninstall(wctx->zvni, mac, 0); | |
2232a77c | 1617 | |
d62a17ae | 1618 | return zvni_mac_del(wctx->zvni, mac); |
1619 | } | |
2232a77c | 1620 | |
d62a17ae | 1621 | return 0; |
2232a77c | 1622 | } |
1623 | ||
1624 | /* | |
1625 | * Delete all MAC entries from specific VTEP for a particular VNI. | |
1626 | */ | |
d62a17ae | 1627 | static void zvni_mac_del_from_vtep(zebra_vni_t *zvni, int uninstall, |
1628 | struct in_addr *r_vtep_ip) | |
2232a77c | 1629 | { |
d62a17ae | 1630 | struct mac_walk_ctx wctx; |
2232a77c | 1631 | |
d62a17ae | 1632 | if (!zvni->mac_table) |
1633 | return; | |
2232a77c | 1634 | |
d62a17ae | 1635 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); |
1636 | wctx.zvni = zvni; | |
1637 | wctx.uninstall = uninstall; | |
1638 | wctx.flags = DEL_REMOTE_MAC_FROM_VTEP; | |
1639 | wctx.r_vtep_ip = *r_vtep_ip; | |
2232a77c | 1640 | |
9d303b37 DL |
1641 | hash_iterate(zvni->mac_table, (void (*)(struct hash_backet *, |
1642 | void *))zvni_mac_del_hash_entry, | |
1643 | &wctx); | |
2232a77c | 1644 | } |
1645 | ||
1646 | /* | |
1647 | * Delete all MAC entries for this VNI. | |
1648 | */ | |
d62a17ae | 1649 | static void zvni_mac_del_all(struct zebra_vrf *zvrf, zebra_vni_t *zvni, |
1650 | int uninstall, int upd_client, u_int32_t flags) | |
2232a77c | 1651 | { |
d62a17ae | 1652 | struct mac_walk_ctx wctx; |
2232a77c | 1653 | |
d62a17ae | 1654 | if (!zvni->mac_table) |
1655 | return; | |
2232a77c | 1656 | |
d62a17ae | 1657 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); |
1658 | wctx.zvni = zvni; | |
1659 | wctx.zvrf = zvrf; | |
1660 | wctx.uninstall = uninstall; | |
1661 | wctx.upd_client = upd_client; | |
1662 | wctx.flags = flags; | |
2232a77c | 1663 | |
9d303b37 DL |
1664 | hash_iterate(zvni->mac_table, (void (*)(struct hash_backet *, |
1665 | void *))zvni_mac_del_hash_entry, | |
1666 | &wctx); | |
2232a77c | 1667 | } |
1668 | ||
1669 | /* | |
1670 | * Look up MAC hash entry. | |
1671 | */ | |
d62a17ae | 1672 | static zebra_mac_t *zvni_mac_lookup(zebra_vni_t *zvni, struct ethaddr *mac) |
2232a77c | 1673 | { |
d62a17ae | 1674 | zebra_mac_t tmp; |
1675 | zebra_mac_t *pmac; | |
2232a77c | 1676 | |
d62a17ae | 1677 | memset(&tmp, 0, sizeof(tmp)); |
ff8b7eb8 | 1678 | memcpy(&tmp.macaddr, mac, ETH_ALEN); |
d62a17ae | 1679 | pmac = hash_lookup(zvni->mac_table, &tmp); |
2232a77c | 1680 | |
d62a17ae | 1681 | return pmac; |
2232a77c | 1682 | } |
1683 | ||
1684 | /* | |
1685 | * Inform BGP about local MAC addition. | |
1686 | */ | |
d62a17ae | 1687 | static int zvni_mac_send_add_to_client(struct zebra_vrf *zvrf, vni_t vni, |
1a98c087 | 1688 | struct ethaddr *macaddr, u_char flags) |
2232a77c | 1689 | { |
1a98c087 | 1690 | return zvni_macip_send_msg_to_client(zvrf, vni, macaddr, NULL, flags, |
d62a17ae | 1691 | ZEBRA_MACIP_ADD); |
2232a77c | 1692 | } |
1693 | ||
1694 | /* | |
1695 | * Inform BGP about local MAC deletion. | |
1696 | */ | |
d62a17ae | 1697 | static int zvni_mac_send_del_to_client(struct zebra_vrf *zvrf, vni_t vni, |
1a98c087 | 1698 | struct ethaddr *macaddr, u_char flags) |
2232a77c | 1699 | { |
1a98c087 | 1700 | return zvni_macip_send_msg_to_client(zvrf, vni, macaddr, NULL, flags, |
d62a17ae | 1701 | ZEBRA_MACIP_DEL); |
2232a77c | 1702 | } |
1703 | ||
1704 | /* | |
1705 | * Map port or (port, VLAN) to a VNI. This is invoked upon getting MAC | |
1706 | * notifications, to see if there are of interest. | |
1707 | * TODO: Need to make this as a hash table. | |
1708 | */ | |
d62a17ae | 1709 | static zebra_vni_t *zvni_map_vlan(struct interface *ifp, |
1710 | struct interface *br_if, vlanid_t vid) | |
2232a77c | 1711 | { |
d62a17ae | 1712 | struct zebra_vrf *zvrf; |
1713 | struct listnode *node; | |
1714 | struct interface *tmp_if; | |
1715 | struct zebra_if *zif; | |
1716 | struct zebra_l2info_bridge *br; | |
1717 | struct zebra_l2info_vxlan *vxl; | |
1718 | u_char bridge_vlan_aware; | |
1719 | zebra_vni_t *zvni; | |
2232a77c | 1720 | |
d62a17ae | 1721 | /* Locate VRF corresponding to interface. */ |
1722 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
1723 | assert(zvrf); | |
2232a77c | 1724 | |
d62a17ae | 1725 | /* Determine if bridge is VLAN-aware or not */ |
1726 | zif = br_if->info; | |
1727 | assert(zif); | |
1728 | br = &zif->l2info.br; | |
1729 | bridge_vlan_aware = br->vlan_aware; | |
2232a77c | 1730 | |
d62a17ae | 1731 | /* See if this interface (or interface plus VLAN Id) maps to a VxLAN */ |
1732 | /* TODO: Optimize with a hash. */ | |
1733 | for (ALL_LIST_ELEMENTS_RO(vrf_iflist(zvrf_id(zvrf)), node, tmp_if)) { | |
1734 | zif = tmp_if->info; | |
1735 | if (!zif || zif->zif_type != ZEBRA_IF_VXLAN) | |
1736 | continue; | |
1737 | if (!if_is_operative(tmp_if)) | |
1738 | continue; | |
1739 | vxl = &zif->l2info.vxl; | |
2232a77c | 1740 | |
d62a17ae | 1741 | if (zif->brslave_info.br_if != br_if) |
1742 | continue; | |
2232a77c | 1743 | |
d62a17ae | 1744 | if (!bridge_vlan_aware) |
1745 | break; | |
2232a77c | 1746 | |
d62a17ae | 1747 | if (vxl->access_vlan == vid) |
1748 | break; | |
1749 | } | |
2232a77c | 1750 | |
d62a17ae | 1751 | if (!tmp_if) |
1752 | return NULL; | |
2232a77c | 1753 | |
d62a17ae | 1754 | zvni = zvni_lookup(zvrf, vxl->vni); |
1755 | return zvni; | |
2232a77c | 1756 | } |
1757 | ||
1758 | /* | |
1759 | * Map SVI and associated bridge to a VNI. This is invoked upon getting | |
1760 | * neighbor notifications, to see if they are of interest. | |
1761 | * TODO: Need to make this as a hash table. | |
1762 | */ | |
d62a17ae | 1763 | static zebra_vni_t *zvni_map_svi(struct interface *ifp, struct interface *br_if) |
1764 | { | |
1765 | struct zebra_vrf *zvrf; | |
1766 | struct listnode *node; | |
1767 | struct interface *tmp_if; | |
1768 | struct zebra_if *zif; | |
1769 | struct zebra_l2info_bridge *br; | |
1770 | struct zebra_l2info_vxlan *vxl; | |
1771 | u_char bridge_vlan_aware; | |
1772 | vlanid_t vid = 0; | |
1773 | zebra_vni_t *zvni; | |
1774 | ||
1775 | /* Make sure the linked interface is a bridge. */ | |
1776 | if (!IS_ZEBRA_IF_BRIDGE(br_if)) | |
1777 | return NULL; | |
1778 | ||
1779 | /* Locate VRF corresponding to interface. */ | |
1780 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
1781 | assert(zvrf); | |
1782 | ||
1783 | /* Determine if bridge is VLAN-aware or not */ | |
1784 | zif = br_if->info; | |
1785 | assert(zif); | |
1786 | br = &zif->l2info.br; | |
1787 | bridge_vlan_aware = br->vlan_aware; | |
1788 | if (bridge_vlan_aware) { | |
1789 | struct zebra_l2info_vlan *vl; | |
1790 | ||
1791 | if (!IS_ZEBRA_IF_VLAN(ifp)) | |
1792 | return NULL; | |
1793 | ||
1794 | zif = ifp->info; | |
1795 | assert(zif); | |
1796 | vl = &zif->l2info.vl; | |
1797 | vid = vl->vid; | |
1798 | } | |
1799 | ||
1800 | /* See if this interface (or interface plus VLAN Id) maps to a VxLAN */ | |
1801 | /* TODO: Optimize with a hash. */ | |
1802 | for (ALL_LIST_ELEMENTS_RO(vrf_iflist(zvrf_id(zvrf)), node, tmp_if)) { | |
1803 | zif = tmp_if->info; | |
1804 | if (!zif || zif->zif_type != ZEBRA_IF_VXLAN) | |
1805 | continue; | |
1806 | if (!if_is_operative(tmp_if)) | |
1807 | continue; | |
1808 | vxl = &zif->l2info.vxl; | |
1809 | ||
1810 | if (zif->brslave_info.br_if != br_if) | |
1811 | continue; | |
1812 | ||
1813 | if (!bridge_vlan_aware) | |
1814 | break; | |
1815 | ||
1816 | if (vxl->access_vlan == vid) | |
1817 | break; | |
1818 | } | |
1819 | ||
1820 | if (!tmp_if) | |
1821 | return NULL; | |
1822 | ||
1823 | zvni = zvni_lookup(zvrf, vxl->vni); | |
1824 | return zvni; | |
2232a77c | 1825 | } |
1826 | ||
1827 | /* Map to SVI on bridge corresponding to specified VLAN. This can be one | |
1828 | * of two cases: | |
1829 | * (a) In the case of a VLAN-aware bridge, the SVI is a L3 VLAN interface | |
1830 | * linked to the bridge | |
1831 | * (b) In the case of a VLAN-unaware bridge, the SVI is the bridge inteface | |
1832 | * itself | |
1833 | */ | |
d62a17ae | 1834 | static struct interface *zvni_map_to_svi(struct zebra_vrf *zvrf, vlanid_t vid, |
1835 | struct interface *br_if) | |
1836 | { | |
1837 | struct listnode *node; | |
1838 | struct interface *tmp_if; | |
1839 | struct zebra_if *zif; | |
1840 | struct zebra_l2info_bridge *br; | |
1841 | struct zebra_l2info_vlan *vl; | |
1842 | u_char bridge_vlan_aware; | |
1843 | ||
b5ebdc9b | 1844 | /* Defensive check, caller expected to invoke only with valid bridge. */ |
1845 | if (!br_if) | |
1846 | return NULL; | |
1847 | ||
d62a17ae | 1848 | /* Determine if bridge is VLAN-aware or not */ |
1849 | zif = br_if->info; | |
1850 | assert(zif); | |
1851 | br = &zif->l2info.br; | |
1852 | bridge_vlan_aware = br->vlan_aware; | |
1853 | ||
1854 | /* Check oper status of the SVI. */ | |
1855 | if (!bridge_vlan_aware) | |
1856 | return if_is_operative(br_if) ? br_if : NULL; | |
1857 | ||
1858 | /* Identify corresponding VLAN interface. */ | |
1859 | /* TODO: Optimize with a hash. */ | |
1860 | for (ALL_LIST_ELEMENTS_RO(vrf_iflist(zvrf_id(zvrf)), node, tmp_if)) { | |
1861 | /* Check oper status of the SVI. */ | |
1862 | if (!if_is_operative(tmp_if)) | |
1863 | continue; | |
1864 | zif = tmp_if->info; | |
1865 | if (!zif || zif->zif_type != ZEBRA_IF_VLAN | |
1866 | || zif->link != br_if) | |
1867 | continue; | |
1868 | vl = (struct zebra_l2info_vlan *)&zif->l2info.vl; | |
1869 | ||
1870 | if (vl->vid == vid) | |
1871 | break; | |
1872 | } | |
1873 | ||
1874 | return tmp_if; | |
2232a77c | 1875 | } |
1876 | ||
1877 | /* | |
1878 | * Install remote MAC into the kernel. | |
1879 | */ | |
d62a17ae | 1880 | static int zvni_mac_install(zebra_vni_t *zvni, zebra_mac_t *mac) |
2232a77c | 1881 | { |
d62a17ae | 1882 | struct zebra_if *zif; |
1883 | struct zebra_l2info_vxlan *vxl; | |
1884 | u_char sticky; | |
2232a77c | 1885 | |
d62a17ae | 1886 | if (!(mac->flags & ZEBRA_MAC_REMOTE)) |
1887 | return 0; | |
2232a77c | 1888 | |
d62a17ae | 1889 | zif = zvni->vxlan_if->info; |
1890 | if (!zif) | |
1891 | return -1; | |
1892 | vxl = &zif->l2info.vxl; | |
2232a77c | 1893 | |
d62a17ae | 1894 | sticky = CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) ? 1 : 0; |
c85c03c7 | 1895 | |
d62a17ae | 1896 | return kernel_add_mac(zvni->vxlan_if, vxl->access_vlan, &mac->macaddr, |
1897 | mac->fwd_info.r_vtep_ip, sticky); | |
2232a77c | 1898 | } |
1899 | ||
1900 | /* | |
1901 | * Uninstall remote MAC from the kernel. In the scenario where the MAC | |
1902 | * moves to remote, we have to uninstall any existing local entry first. | |
1903 | */ | |
d62a17ae | 1904 | static int zvni_mac_uninstall(zebra_vni_t *zvni, zebra_mac_t *mac, int local) |
2232a77c | 1905 | { |
d62a17ae | 1906 | struct zebra_if *zif; |
1907 | struct zebra_l2info_vxlan *vxl; | |
1908 | struct in_addr vtep_ip = {.s_addr = 0}; | |
1909 | struct zebra_ns *zns; | |
1910 | struct interface *ifp; | |
2232a77c | 1911 | |
d62a17ae | 1912 | if (!local && !(mac->flags & ZEBRA_MAC_REMOTE)) |
1913 | return 0; | |
2232a77c | 1914 | |
d62a17ae | 1915 | if (!zvni->vxlan_if) { |
1916 | zlog_err("VNI %u hash %p couldn't be uninstalled - no intf", | |
1917 | zvni->vni, zvni); | |
1918 | return -1; | |
1919 | } | |
2232a77c | 1920 | |
d62a17ae | 1921 | zif = zvni->vxlan_if->info; |
1922 | if (!zif) | |
1923 | return -1; | |
1924 | vxl = &zif->l2info.vxl; | |
2232a77c | 1925 | |
d62a17ae | 1926 | if (local) { |
1927 | zns = zebra_ns_lookup(NS_DEFAULT); | |
1928 | ifp = if_lookup_by_index_per_ns(zns, | |
1929 | mac->fwd_info.local.ifindex); | |
1930 | if (!ifp) // unexpected | |
1931 | return -1; | |
1932 | } else { | |
1933 | ifp = zvni->vxlan_if; | |
1934 | vtep_ip = mac->fwd_info.r_vtep_ip; | |
1935 | } | |
2232a77c | 1936 | |
d62a17ae | 1937 | return kernel_del_mac(ifp, vxl->access_vlan, &mac->macaddr, vtep_ip, |
1938 | local); | |
2232a77c | 1939 | } |
1940 | ||
1941 | /* | |
1942 | * Install MAC hash entry - called upon access VLAN change. | |
1943 | */ | |
d62a17ae | 1944 | static void zvni_install_mac_hash(struct hash_backet *backet, void *ctxt) |
2232a77c | 1945 | { |
d62a17ae | 1946 | zebra_mac_t *mac; |
1947 | struct mac_walk_ctx *wctx = ctxt; | |
2232a77c | 1948 | |
d62a17ae | 1949 | mac = (zebra_mac_t *)backet->data; |
1950 | if (!mac) | |
1951 | return; | |
2232a77c | 1952 | |
d62a17ae | 1953 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) |
1954 | zvni_mac_install(wctx->zvni, mac); | |
2232a77c | 1955 | } |
1956 | ||
1957 | /* | |
1958 | * Decrement neighbor refcount of MAC; uninstall and free it if | |
1959 | * appropriate. | |
1960 | */ | |
d62a17ae | 1961 | static void zvni_deref_ip2mac(zebra_vni_t *zvni, zebra_mac_t *mac, |
1962 | int uninstall) | |
2232a77c | 1963 | { |
0a97666d MK |
1964 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_AUTO) || |
1965 | !list_isempty(mac->neigh_list)) | |
d62a17ae | 1966 | return; |
2232a77c | 1967 | |
d62a17ae | 1968 | if (uninstall) |
1969 | zvni_mac_uninstall(zvni, mac, 0); | |
2232a77c | 1970 | |
d62a17ae | 1971 | zvni_mac_del(zvni, mac); |
2232a77c | 1972 | } |
1973 | ||
1974 | /* | |
1975 | * Read and populate local MACs and neighbors corresponding to this VNI. | |
1976 | */ | |
d62a17ae | 1977 | static void zvni_read_mac_neigh(struct zebra_vrf *zvrf, zebra_vni_t *zvni, |
1978 | struct interface *ifp) | |
2232a77c | 1979 | { |
d62a17ae | 1980 | struct zebra_if *zif; |
1981 | struct interface *vlan_if; | |
1982 | struct zebra_l2info_vxlan *vxl; | |
1a98c087 | 1983 | struct interface *vrr_if; |
2232a77c | 1984 | |
d62a17ae | 1985 | zif = ifp->info; |
1986 | vxl = &zif->l2info.vxl; | |
2232a77c | 1987 | |
d62a17ae | 1988 | if (IS_ZEBRA_DEBUG_VXLAN) |
1989 | zlog_debug( | |
1990 | "%u:Reading MAC FDB and Neighbors for intf %s(%u) VNI %u master %u", | |
1991 | ifp->vrf_id, ifp->name, ifp->ifindex, zvni->vni, | |
1992 | zif->brslave_info.bridge_ifindex); | |
2232a77c | 1993 | |
d62a17ae | 1994 | macfdb_read_for_bridge(zvrf->zns, ifp, zif->brslave_info.br_if); |
1995 | vlan_if = zvni_map_to_svi(zvrf, vxl->access_vlan, | |
1996 | zif->brslave_info.br_if); | |
1a98c087 MK |
1997 | if (vlan_if) { |
1998 | ||
1999 | if (advertise_gw_macip_enabled(zvrf, zvni)) { | |
2000 | /* Add SVI MAC-IP */ | |
2001 | zvni_add_macip_for_intf(vlan_if, zvni); | |
2002 | ||
2003 | /* Add VRR MAC-IP - if any*/ | |
2004 | vrr_if = zebra_get_vrr_intf_for_svi(vlan_if); | |
2005 | if (vrr_if) | |
2006 | zvni_add_macip_for_intf(vrr_if, zvni); | |
2007 | } | |
2008 | ||
d62a17ae | 2009 | neigh_read_for_vlan(zvrf->zns, vlan_if); |
1a98c087 | 2010 | } |
2232a77c | 2011 | } |
2012 | ||
2013 | /* | |
2014 | * Hash function for VNI. | |
2015 | */ | |
d62a17ae | 2016 | static unsigned int vni_hash_keymake(void *p) |
2232a77c | 2017 | { |
d62a17ae | 2018 | const zebra_vni_t *zvni = p; |
2232a77c | 2019 | |
d62a17ae | 2020 | return (jhash_1word(zvni->vni, 0)); |
2232a77c | 2021 | } |
2022 | ||
2023 | /* | |
2024 | * Compare 2 VNI hash entries. | |
2025 | */ | |
d62a17ae | 2026 | static int vni_hash_cmp(const void *p1, const void *p2) |
2232a77c | 2027 | { |
d62a17ae | 2028 | const zebra_vni_t *zvni1 = p1; |
2029 | const zebra_vni_t *zvni2 = p2; | |
2232a77c | 2030 | |
d62a17ae | 2031 | return (zvni1->vni == zvni2->vni); |
2232a77c | 2032 | } |
2033 | ||
2034 | /* | |
2035 | * Callback to allocate VNI hash entry. | |
2036 | */ | |
d62a17ae | 2037 | static void *zvni_alloc(void *p) |
2232a77c | 2038 | { |
d62a17ae | 2039 | const zebra_vni_t *tmp_vni = p; |
2040 | zebra_vni_t *zvni; | |
2232a77c | 2041 | |
d62a17ae | 2042 | zvni = XCALLOC(MTYPE_ZVNI, sizeof(zebra_vni_t)); |
2043 | zvni->vni = tmp_vni->vni; | |
2044 | return ((void *)zvni); | |
2232a77c | 2045 | } |
2046 | ||
2047 | /* | |
2048 | * Look up VNI hash entry. | |
2049 | */ | |
d62a17ae | 2050 | static zebra_vni_t *zvni_lookup(struct zebra_vrf *zvrf, vni_t vni) |
2232a77c | 2051 | { |
d62a17ae | 2052 | zebra_vni_t tmp_vni; |
2053 | zebra_vni_t *zvni = NULL; | |
2232a77c | 2054 | |
d62a17ae | 2055 | memset(&tmp_vni, 0, sizeof(zebra_vni_t)); |
2056 | tmp_vni.vni = vni; | |
2057 | zvni = hash_lookup(zvrf->vni_table, &tmp_vni); | |
2232a77c | 2058 | |
d62a17ae | 2059 | return zvni; |
2232a77c | 2060 | } |
2061 | ||
2062 | /* | |
2063 | * Add VNI hash entry. | |
2064 | */ | |
d62a17ae | 2065 | static zebra_vni_t *zvni_add(struct zebra_vrf *zvrf, vni_t vni) |
2232a77c | 2066 | { |
d62a17ae | 2067 | zebra_vni_t tmp_zvni; |
2068 | zebra_vni_t *zvni = NULL; | |
2232a77c | 2069 | |
d62a17ae | 2070 | memset(&tmp_zvni, 0, sizeof(zebra_vni_t)); |
2071 | tmp_zvni.vni = vni; | |
2072 | zvni = hash_get(zvrf->vni_table, &tmp_zvni, zvni_alloc); | |
2073 | assert(zvni); | |
2232a77c | 2074 | |
d62a17ae | 2075 | /* Create hash table for MAC */ |
2076 | zvni->mac_table = | |
2077 | hash_create(mac_hash_keymake, mac_cmp, "Zebra VNI MAC Table"); | |
2232a77c | 2078 | |
d62a17ae | 2079 | /* Create hash table for neighbors */ |
2080 | zvni->neigh_table = hash_create(neigh_hash_keymake, neigh_cmp, | |
2081 | "Zebra VNI Neighbor Table"); | |
2232a77c | 2082 | |
d62a17ae | 2083 | return zvni; |
2232a77c | 2084 | } |
2085 | ||
2086 | /* | |
2087 | * Delete VNI hash entry. | |
2088 | */ | |
d62a17ae | 2089 | static int zvni_del(struct zebra_vrf *zvrf, zebra_vni_t *zvni) |
2232a77c | 2090 | { |
d62a17ae | 2091 | zebra_vni_t *tmp_zvni; |
2232a77c | 2092 | |
d62a17ae | 2093 | zvni->vxlan_if = NULL; |
2232a77c | 2094 | |
d62a17ae | 2095 | /* Free the neighbor hash table. */ |
2096 | hash_free(zvni->neigh_table); | |
2097 | zvni->neigh_table = NULL; | |
2232a77c | 2098 | |
d62a17ae | 2099 | /* Free the MAC hash table. */ |
2100 | hash_free(zvni->mac_table); | |
2101 | zvni->mac_table = NULL; | |
2232a77c | 2102 | |
d62a17ae | 2103 | /* Free the VNI hash entry and allocated memory. */ |
2104 | tmp_zvni = hash_release(zvrf->vni_table, zvni); | |
2105 | if (tmp_zvni) | |
2106 | XFREE(MTYPE_ZVNI, tmp_zvni); | |
2232a77c | 2107 | |
d62a17ae | 2108 | return 0; |
2232a77c | 2109 | } |
2110 | ||
2111 | /* | |
2112 | * Inform BGP about local VNI addition. | |
2113 | */ | |
d62a17ae | 2114 | static int zvni_send_add_to_client(struct zebra_vrf *zvrf, zebra_vni_t *zvni) |
2232a77c | 2115 | { |
d62a17ae | 2116 | struct zserv *client; |
2117 | struct stream *s; | |
2232a77c | 2118 | |
d62a17ae | 2119 | client = zebra_find_client(ZEBRA_ROUTE_BGP); |
2120 | /* BGP may not be running. */ | |
2121 | if (!client) | |
2122 | return 0; | |
2232a77c | 2123 | |
d62a17ae | 2124 | s = client->obuf; |
2125 | stream_reset(s); | |
2232a77c | 2126 | |
d62a17ae | 2127 | zserv_create_header(s, ZEBRA_VNI_ADD, zvrf_id(zvrf)); |
2128 | stream_putl(s, zvni->vni); | |
2129 | stream_put_in_addr(s, &zvni->local_vtep_ip); | |
2232a77c | 2130 | |
d62a17ae | 2131 | /* Write packet size. */ |
2132 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2232a77c | 2133 | |
d62a17ae | 2134 | if (IS_ZEBRA_DEBUG_VXLAN) |
2135 | zlog_debug("%u:Send VNI_ADD %u %s to %s", zvrf_id(zvrf), | |
2136 | zvni->vni, inet_ntoa(zvni->local_vtep_ip), | |
2137 | zebra_route_string(client->proto)); | |
2232a77c | 2138 | |
d62a17ae | 2139 | client->vniadd_cnt++; |
2140 | return zebra_server_send_message(client); | |
2232a77c | 2141 | } |
2142 | ||
2143 | /* | |
2144 | * Inform BGP about local VNI deletion. | |
2145 | */ | |
d62a17ae | 2146 | static int zvni_send_del_to_client(struct zebra_vrf *zvrf, vni_t vni) |
2232a77c | 2147 | { |
d62a17ae | 2148 | struct zserv *client; |
2149 | struct stream *s; | |
2232a77c | 2150 | |
d62a17ae | 2151 | client = zebra_find_client(ZEBRA_ROUTE_BGP); |
2152 | /* BGP may not be running. */ | |
2153 | if (!client) | |
2154 | return 0; | |
2232a77c | 2155 | |
d62a17ae | 2156 | s = client->obuf; |
2157 | stream_reset(s); | |
2232a77c | 2158 | |
d62a17ae | 2159 | zserv_create_header(s, ZEBRA_VNI_DEL, zvrf_id(zvrf)); |
2160 | stream_putl(s, vni); | |
2232a77c | 2161 | |
d62a17ae | 2162 | /* Write packet size. */ |
2163 | stream_putw_at(s, 0, stream_get_endp(s)); | |
2232a77c | 2164 | |
d62a17ae | 2165 | if (IS_ZEBRA_DEBUG_VXLAN) |
2166 | zlog_debug("%u:Send VNI_DEL %u to %s", zvrf_id(zvrf), vni, | |
2167 | zebra_route_string(client->proto)); | |
2232a77c | 2168 | |
d62a17ae | 2169 | client->vnidel_cnt++; |
2170 | return zebra_server_send_message(client); | |
2232a77c | 2171 | } |
2172 | ||
2173 | /* | |
2174 | * Build the VNI hash table by going over the VxLAN interfaces. This | |
2175 | * is called when EVPN (advertise-all-vni) is enabled. | |
2176 | */ | |
d62a17ae | 2177 | static void zvni_build_hash_table(struct zebra_vrf *zvrf) |
2232a77c | 2178 | { |
d62a17ae | 2179 | struct listnode *node; |
2180 | struct interface *ifp; | |
2232a77c | 2181 | |
d62a17ae | 2182 | /* Walk VxLAN interfaces and create VNI hash. */ |
2183 | for (ALL_LIST_ELEMENTS_RO(vrf_iflist(zvrf_id(zvrf)), node, ifp)) { | |
2184 | struct zebra_if *zif; | |
2185 | struct zebra_l2info_vxlan *vxl; | |
2186 | zebra_vni_t *zvni; | |
2187 | vni_t vni; | |
2232a77c | 2188 | |
d62a17ae | 2189 | zif = ifp->info; |
2190 | if (!zif || zif->zif_type != ZEBRA_IF_VXLAN) | |
2191 | continue; | |
2192 | vxl = &zif->l2info.vxl; | |
2232a77c | 2193 | |
d62a17ae | 2194 | vni = vxl->vni; |
2232a77c | 2195 | |
d62a17ae | 2196 | if (IS_ZEBRA_DEBUG_VXLAN) |
2197 | zlog_debug( | |
2198 | "%u:Create VNI hash for intf %s(%u) VNI %u local IP %s", | |
2199 | zvrf_id(zvrf), ifp->name, ifp->ifindex, vni, | |
2200 | inet_ntoa(vxl->vtep_ip)); | |
2232a77c | 2201 | |
d62a17ae | 2202 | /* VNI hash entry is not expected to exist. */ |
2203 | zvni = zvni_lookup(zvrf, vni); | |
2204 | if (zvni) { | |
2205 | zlog_err( | |
2206 | "VNI hash already present for VRF %d IF %s(%u) VNI %u", | |
2207 | zvrf_id(zvrf), ifp->name, ifp->ifindex, vni); | |
2208 | continue; | |
2209 | } | |
2232a77c | 2210 | |
d62a17ae | 2211 | zvni = zvni_add(zvrf, vni); |
2212 | if (!zvni) { | |
2213 | zlog_err( | |
2214 | "Failed to add VNI hash, VRF %d IF %s(%u) VNI %u", | |
2215 | zvrf_id(zvrf), ifp->name, ifp->ifindex, vni); | |
2216 | return; | |
2217 | } | |
2232a77c | 2218 | |
d62a17ae | 2219 | zvni->local_vtep_ip = vxl->vtep_ip; |
2220 | zvni->vxlan_if = ifp; | |
2232a77c | 2221 | |
d62a17ae | 2222 | /* Inform BGP if interface is up and mapped to bridge. */ |
2223 | if (if_is_operative(ifp) && zif->brslave_info.br_if) | |
2224 | zvni_send_add_to_client(zvrf, zvni); | |
2225 | } | |
2232a77c | 2226 | } |
2227 | ||
2228 | /* | |
2229 | * See if remote VTEP matches with prefix. | |
2230 | */ | |
d62a17ae | 2231 | static int zvni_vtep_match(struct in_addr *vtep_ip, zebra_vtep_t *zvtep) |
2232a77c | 2232 | { |
d62a17ae | 2233 | return (IPV4_ADDR_SAME(vtep_ip, &zvtep->vtep_ip)); |
2232a77c | 2234 | } |
2235 | ||
2236 | /* | |
2237 | * Locate remote VTEP in VNI hash table. | |
2238 | */ | |
d62a17ae | 2239 | static zebra_vtep_t *zvni_vtep_find(zebra_vni_t *zvni, struct in_addr *vtep_ip) |
2232a77c | 2240 | { |
d62a17ae | 2241 | zebra_vtep_t *zvtep; |
2232a77c | 2242 | |
d62a17ae | 2243 | if (!zvni) |
2244 | return NULL; | |
2232a77c | 2245 | |
d62a17ae | 2246 | for (zvtep = zvni->vteps; zvtep; zvtep = zvtep->next) { |
2247 | if (zvni_vtep_match(vtep_ip, zvtep)) | |
2248 | break; | |
2249 | } | |
2232a77c | 2250 | |
d62a17ae | 2251 | return zvtep; |
2232a77c | 2252 | } |
2253 | ||
2254 | /* | |
2255 | * Add remote VTEP to VNI hash table. | |
2256 | */ | |
d62a17ae | 2257 | static zebra_vtep_t *zvni_vtep_add(zebra_vni_t *zvni, struct in_addr *vtep_ip) |
2232a77c | 2258 | { |
d62a17ae | 2259 | zebra_vtep_t *zvtep; |
2232a77c | 2260 | |
d62a17ae | 2261 | zvtep = XCALLOC(MTYPE_ZVNI_VTEP, sizeof(zebra_vtep_t)); |
2262 | if (!zvtep) { | |
2263 | zlog_err("Failed to alloc VTEP entry, VNI %u", zvni->vni); | |
2264 | return NULL; | |
2265 | } | |
2232a77c | 2266 | |
d62a17ae | 2267 | zvtep->vtep_ip = *vtep_ip; |
2232a77c | 2268 | |
d62a17ae | 2269 | if (zvni->vteps) |
2270 | zvni->vteps->prev = zvtep; | |
2271 | zvtep->next = zvni->vteps; | |
2272 | zvni->vteps = zvtep; | |
2232a77c | 2273 | |
d62a17ae | 2274 | return zvtep; |
2232a77c | 2275 | } |
2276 | ||
2277 | /* | |
2278 | * Remove remote VTEP from VNI hash table. | |
2279 | */ | |
d62a17ae | 2280 | static int zvni_vtep_del(zebra_vni_t *zvni, zebra_vtep_t *zvtep) |
2232a77c | 2281 | { |
d62a17ae | 2282 | if (zvtep->next) |
2283 | zvtep->next->prev = zvtep->prev; | |
2284 | if (zvtep->prev) | |
2285 | zvtep->prev->next = zvtep->next; | |
2286 | else | |
2287 | zvni->vteps = zvtep->next; | |
2232a77c | 2288 | |
d62a17ae | 2289 | zvtep->prev = zvtep->next = NULL; |
2290 | XFREE(MTYPE_ZVNI_VTEP, zvtep); | |
2232a77c | 2291 | |
d62a17ae | 2292 | return 0; |
2232a77c | 2293 | } |
2294 | ||
2295 | /* | |
2296 | * Delete all remote VTEPs for this VNI (upon VNI delete). Also | |
2297 | * uninstall from kernel if asked to. | |
2298 | */ | |
d62a17ae | 2299 | static int zvni_vtep_del_all(zebra_vni_t *zvni, int uninstall) |
2232a77c | 2300 | { |
d62a17ae | 2301 | zebra_vtep_t *zvtep, *zvtep_next; |
2232a77c | 2302 | |
d62a17ae | 2303 | if (!zvni) |
2304 | return -1; | |
2232a77c | 2305 | |
d62a17ae | 2306 | for (zvtep = zvni->vteps; zvtep; zvtep = zvtep_next) { |
2307 | zvtep_next = zvtep->next; | |
2308 | if (uninstall) | |
2309 | zvni_vtep_uninstall(zvni, &zvtep->vtep_ip); | |
2310 | zvni_vtep_del(zvni, zvtep); | |
2311 | } | |
2232a77c | 2312 | |
d62a17ae | 2313 | return 0; |
2232a77c | 2314 | } |
2315 | ||
2316 | /* | |
2317 | * Install remote VTEP into the kernel. | |
2318 | */ | |
d62a17ae | 2319 | static int zvni_vtep_install(zebra_vni_t *zvni, struct in_addr *vtep_ip) |
2232a77c | 2320 | { |
d62a17ae | 2321 | return kernel_add_vtep(zvni->vni, zvni->vxlan_if, vtep_ip); |
2232a77c | 2322 | } |
2323 | ||
2324 | /* | |
2325 | * Uninstall remote VTEP from the kernel. | |
2326 | */ | |
d62a17ae | 2327 | static int zvni_vtep_uninstall(zebra_vni_t *zvni, struct in_addr *vtep_ip) |
2232a77c | 2328 | { |
d62a17ae | 2329 | if (!zvni->vxlan_if) { |
2330 | zlog_err("VNI %u hash %p couldn't be uninstalled - no intf", | |
2331 | zvni->vni, zvni); | |
2332 | return -1; | |
2333 | } | |
2232a77c | 2334 | |
d62a17ae | 2335 | return kernel_del_vtep(zvni->vni, zvni->vxlan_if, vtep_ip); |
2232a77c | 2336 | } |
2337 | ||
2338 | /* | |
2339 | * Cleanup VNI/VTEP and update kernel | |
2340 | */ | |
d62a17ae | 2341 | static void zvni_cleanup_all(struct hash_backet *backet, void *zvrf) |
2232a77c | 2342 | { |
d62a17ae | 2343 | zebra_vni_t *zvni; |
2232a77c | 2344 | |
d62a17ae | 2345 | zvni = (zebra_vni_t *)backet->data; |
2346 | if (!zvni) | |
2347 | return; | |
2232a77c | 2348 | |
d62a17ae | 2349 | /* Free up all neighbors and MACs, if any. */ |
2350 | zvni_neigh_del_all(zvrf, zvni, 1, 0, DEL_ALL_NEIGH); | |
2351 | zvni_mac_del_all(zvrf, zvni, 1, 0, DEL_ALL_MAC); | |
2232a77c | 2352 | |
d62a17ae | 2353 | /* Free up all remote VTEPs, if any. */ |
2354 | zvni_vtep_del_all(zvni, 1); | |
2232a77c | 2355 | |
d62a17ae | 2356 | /* Delete the hash entry. */ |
2357 | zvni_del(zvrf, zvni); | |
2232a77c | 2358 | } |
2359 | ||
2360 | ||
2361 | /* Public functions */ | |
2362 | ||
cec2e17d | 2363 | /* |
2364 | * Display Neighbors for a VNI (VTY command handler). | |
2365 | */ | |
d62a17ae | 2366 | void zebra_vxlan_print_neigh_vni(struct vty *vty, struct zebra_vrf *zvrf, |
cd233079 | 2367 | vni_t vni, u_char use_json) |
d62a17ae | 2368 | { |
2369 | zebra_vni_t *zvni; | |
2370 | u_int32_t num_neigh; | |
2371 | struct neigh_walk_ctx wctx; | |
cd233079 | 2372 | json_object *json = NULL; |
d62a17ae | 2373 | |
2374 | if (!EVPN_ENABLED(zvrf)) | |
2375 | return; | |
2376 | zvni = zvni_lookup(zvrf, vni); | |
2377 | if (!zvni) { | |
cd233079 CS |
2378 | if (use_json) |
2379 | vty_out(vty, "{}\n"); | |
2380 | else | |
2381 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
d62a17ae | 2382 | return; |
2383 | } | |
2384 | num_neigh = hashcount(zvni->neigh_table); | |
2385 | if (!num_neigh) | |
2386 | return; | |
2387 | ||
cd233079 CS |
2388 | if (use_json) |
2389 | json = json_object_new_object(); | |
2390 | ||
d62a17ae | 2391 | /* Since we have IPv6 addresses to deal with which can vary widely in |
2392 | * size, we try to be a bit more elegant in display by first computing | |
2393 | * the maximum width. | |
2394 | */ | |
2395 | memset(&wctx, 0, sizeof(struct neigh_walk_ctx)); | |
2396 | wctx.zvni = zvni; | |
2397 | wctx.vty = vty; | |
2398 | wctx.addr_width = 15; | |
cd233079 | 2399 | wctx.json = json; |
d62a17ae | 2400 | hash_iterate(zvni->neigh_table, zvni_find_neigh_addr_width, &wctx); |
2401 | ||
cd233079 CS |
2402 | if (!use_json) { |
2403 | vty_out(vty, | |
2404 | "Number of ARPs (local and remote) known for this VNI: %u\n", | |
2405 | num_neigh); | |
2406 | vty_out(vty, "%*s %-6s %-17s %-21s\n", -wctx.addr_width, "IP", | |
2407 | "Type", "MAC", "Remote VTEP"); | |
2408 | } else | |
2409 | json_object_int_add(json, "numArpNd", num_neigh); | |
d62a17ae | 2410 | |
2411 | hash_iterate(zvni->neigh_table, zvni_print_neigh_hash, &wctx); | |
cd233079 CS |
2412 | if (use_json) { |
2413 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
2414 | json, JSON_C_TO_STRING_PRETTY)); | |
2415 | json_object_free(json); | |
2416 | } | |
cec2e17d | 2417 | } |
2418 | ||
2419 | /* | |
2420 | * Display neighbors across all VNIs (VTY command handler). | |
2421 | */ | |
cd233079 CS |
2422 | void zebra_vxlan_print_neigh_all_vni(struct vty *vty, struct zebra_vrf *zvrf, |
2423 | u_char use_json) | |
cec2e17d | 2424 | { |
cd233079 CS |
2425 | json_object *json = NULL; |
2426 | void *args[2]; | |
2427 | ||
d62a17ae | 2428 | if (!EVPN_ENABLED(zvrf)) |
2429 | return; | |
cd233079 CS |
2430 | |
2431 | if (use_json) | |
2432 | json = json_object_new_object(); | |
2433 | ||
2434 | args[0] = vty; | |
2435 | args[1] = json; | |
2436 | hash_iterate(zvrf->vni_table, | |
2437 | (void (*)(struct hash_backet *, | |
2438 | void *))zvni_print_neigh_hash_all_vni, | |
2439 | args); | |
2440 | if (use_json) { | |
2441 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
2442 | json, JSON_C_TO_STRING_PRETTY)); | |
2443 | json_object_free(json); | |
2444 | } | |
cec2e17d | 2445 | } |
2446 | ||
2447 | /* | |
2448 | * Display specific neighbor for a VNI, if present (VTY command handler). | |
2449 | */ | |
d62a17ae | 2450 | void zebra_vxlan_print_specific_neigh_vni(struct vty *vty, |
2451 | struct zebra_vrf *zvrf, vni_t vni, | |
cd233079 | 2452 | struct ipaddr *ip, u_char use_json) |
cec2e17d | 2453 | { |
d62a17ae | 2454 | zebra_vni_t *zvni; |
2455 | zebra_neigh_t *n; | |
cd233079 | 2456 | json_object *json = NULL; |
cec2e17d | 2457 | |
d62a17ae | 2458 | if (!EVPN_ENABLED(zvrf)) |
2459 | return; | |
2460 | zvni = zvni_lookup(zvrf, vni); | |
2461 | if (!zvni) { | |
cd233079 CS |
2462 | if (use_json) |
2463 | vty_out(vty, "{}\n"); | |
2464 | else | |
2465 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
d62a17ae | 2466 | return; |
2467 | } | |
2468 | n = zvni_neigh_lookup(zvni, ip); | |
2469 | if (!n) { | |
cd233079 CS |
2470 | if (!use_json) |
2471 | vty_out(vty, | |
2472 | "%% Requested neighbor does not exist in VNI %u\n", | |
2473 | vni); | |
d62a17ae | 2474 | return; |
2475 | } | |
cd233079 CS |
2476 | if (use_json) |
2477 | json = json_object_new_object(); | |
2478 | ||
2479 | zvni_print_neigh(n, vty, json); | |
cec2e17d | 2480 | |
cd233079 CS |
2481 | if (use_json) { |
2482 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
2483 | json, JSON_C_TO_STRING_PRETTY)); | |
2484 | json_object_free(json); | |
2485 | } | |
cec2e17d | 2486 | } |
2487 | ||
2488 | /* | |
2489 | * Display neighbors for a VNI from specific VTEP (VTY command handler). | |
2490 | * By definition, these are remote neighbors. | |
2491 | */ | |
d62a17ae | 2492 | void zebra_vxlan_print_neigh_vni_vtep(struct vty *vty, struct zebra_vrf *zvrf, |
cd233079 CS |
2493 | vni_t vni, struct in_addr vtep_ip, |
2494 | u_char use_json) | |
cec2e17d | 2495 | { |
d62a17ae | 2496 | zebra_vni_t *zvni; |
2497 | u_int32_t num_neigh; | |
2498 | struct neigh_walk_ctx wctx; | |
cd233079 | 2499 | json_object *json = NULL; |
cec2e17d | 2500 | |
d62a17ae | 2501 | if (!EVPN_ENABLED(zvrf)) |
2502 | return; | |
2503 | zvni = zvni_lookup(zvrf, vni); | |
2504 | if (!zvni) { | |
cd233079 CS |
2505 | if (use_json) |
2506 | vty_out(vty, "{}\n"); | |
2507 | else | |
2508 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
d62a17ae | 2509 | return; |
2510 | } | |
2511 | num_neigh = hashcount(zvni->neigh_table); | |
2512 | if (!num_neigh) | |
2513 | return; | |
cec2e17d | 2514 | |
d62a17ae | 2515 | memset(&wctx, 0, sizeof(struct neigh_walk_ctx)); |
2516 | wctx.zvni = zvni; | |
2517 | wctx.vty = vty; | |
2518 | wctx.flags = SHOW_REMOTE_NEIGH_FROM_VTEP; | |
2519 | wctx.r_vtep_ip = vtep_ip; | |
cd233079 | 2520 | wctx.json = json; |
d62a17ae | 2521 | hash_iterate(zvni->neigh_table, zvni_print_neigh_hash, &wctx); |
cd233079 CS |
2522 | |
2523 | if (use_json) { | |
2524 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
2525 | json, JSON_C_TO_STRING_PRETTY)); | |
2526 | json_object_free(json); | |
2527 | } | |
cec2e17d | 2528 | } |
2529 | ||
2530 | /* | |
2531 | * Display MACs for a VNI (VTY command handler). | |
2532 | */ | |
d62a17ae | 2533 | void zebra_vxlan_print_macs_vni(struct vty *vty, struct zebra_vrf *zvrf, |
cd233079 | 2534 | vni_t vni, u_char use_json) |
cec2e17d | 2535 | { |
d62a17ae | 2536 | zebra_vni_t *zvni; |
2537 | u_int32_t num_macs; | |
2538 | struct mac_walk_ctx wctx; | |
cd233079 CS |
2539 | json_object *json = NULL; |
2540 | json_object *json_mac = NULL; | |
cec2e17d | 2541 | |
d62a17ae | 2542 | if (!EVPN_ENABLED(zvrf)) |
2543 | return; | |
2544 | zvni = zvni_lookup(zvrf, vni); | |
2545 | if (!zvni) { | |
cd233079 CS |
2546 | if (use_json) |
2547 | vty_out(vty, "{}\n"); | |
2548 | else | |
2549 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
d62a17ae | 2550 | return; |
2551 | } | |
2552 | num_macs = hashcount(zvni->mac_table); | |
2553 | if (!num_macs) | |
2554 | return; | |
cec2e17d | 2555 | |
cd233079 CS |
2556 | if (use_json) { |
2557 | json = json_object_new_object(); | |
2558 | json_mac = json_object_new_object(); | |
2559 | } | |
2560 | ||
d62a17ae | 2561 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); |
2562 | wctx.zvni = zvni; | |
2563 | wctx.vty = vty; | |
cd233079 | 2564 | wctx.json = json_mac; |
cec2e17d | 2565 | |
cd233079 CS |
2566 | if (!use_json) { |
2567 | vty_out(vty, | |
2568 | "Number of MACs (local and remote) known for this VNI: %u\n", | |
2569 | num_macs); | |
2570 | vty_out(vty, "%-17s %-6s %-21s %-5s\n", "MAC", "Type", | |
2571 | "Intf/Remote VTEP", "VLAN"); | |
2572 | } else | |
2573 | json_object_int_add(json, "numMacs", num_macs); | |
cec2e17d | 2574 | |
d62a17ae | 2575 | hash_iterate(zvni->mac_table, zvni_print_mac_hash, &wctx); |
cd233079 CS |
2576 | |
2577 | if (use_json) { | |
2578 | json_object_object_add(json, "macs", json_mac); | |
2579 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
2580 | json, JSON_C_TO_STRING_PRETTY)); | |
2581 | json_object_free(json); | |
2582 | } | |
cec2e17d | 2583 | } |
2584 | ||
2585 | /* | |
2586 | * Display MACs for all VNIs (VTY command handler). | |
2587 | */ | |
cd233079 CS |
2588 | void zebra_vxlan_print_macs_all_vni(struct vty *vty, struct zebra_vrf *zvrf, |
2589 | u_char use_json) | |
cec2e17d | 2590 | { |
d62a17ae | 2591 | struct mac_walk_ctx wctx; |
cd233079 | 2592 | json_object *json = NULL; |
cec2e17d | 2593 | |
cd233079 CS |
2594 | if (!EVPN_ENABLED(zvrf)) { |
2595 | if (use_json) | |
2596 | vty_out(vty, "{}\n"); | |
d62a17ae | 2597 | return; |
cd233079 CS |
2598 | } |
2599 | if (use_json) | |
2600 | json = json_object_new_object(); | |
2601 | ||
d62a17ae | 2602 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); |
2603 | wctx.vty = vty; | |
cd233079 | 2604 | wctx.json = json; |
d62a17ae | 2605 | hash_iterate(zvrf->vni_table, zvni_print_mac_hash_all_vni, &wctx); |
cd233079 CS |
2606 | |
2607 | if (use_json) { | |
2608 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
2609 | json, JSON_C_TO_STRING_PRETTY)); | |
2610 | json_object_free(json); | |
2611 | } | |
cec2e17d | 2612 | } |
2613 | ||
2614 | /* | |
2615 | * Display MACs for all VNIs (VTY command handler). | |
2616 | */ | |
d62a17ae | 2617 | void zebra_vxlan_print_macs_all_vni_vtep(struct vty *vty, |
2618 | struct zebra_vrf *zvrf, | |
cd233079 CS |
2619 | struct in_addr vtep_ip, |
2620 | u_char use_json) | |
cec2e17d | 2621 | { |
d62a17ae | 2622 | struct mac_walk_ctx wctx; |
cd233079 | 2623 | json_object *json = NULL; |
cec2e17d | 2624 | |
d62a17ae | 2625 | if (!EVPN_ENABLED(zvrf)) |
2626 | return; | |
cd233079 CS |
2627 | |
2628 | if (use_json) | |
2629 | json = json_object_new_object(); | |
2630 | ||
d62a17ae | 2631 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); |
2632 | wctx.vty = vty; | |
2633 | wctx.flags = SHOW_REMOTE_MAC_FROM_VTEP; | |
2634 | wctx.r_vtep_ip = vtep_ip; | |
cd233079 | 2635 | wctx.json = json; |
d62a17ae | 2636 | hash_iterate(zvrf->vni_table, zvni_print_mac_hash_all_vni, &wctx); |
cd233079 CS |
2637 | |
2638 | if (use_json) { | |
2639 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
2640 | json, JSON_C_TO_STRING_PRETTY)); | |
2641 | json_object_free(json); | |
2642 | } | |
cec2e17d | 2643 | } |
2644 | ||
2645 | /* | |
2646 | * Display specific MAC for a VNI, if present (VTY command handler). | |
2647 | */ | |
d62a17ae | 2648 | void zebra_vxlan_print_specific_mac_vni(struct vty *vty, struct zebra_vrf *zvrf, |
2649 | vni_t vni, struct ethaddr *macaddr) | |
cec2e17d | 2650 | { |
d62a17ae | 2651 | zebra_vni_t *zvni; |
2652 | zebra_mac_t *mac; | |
cec2e17d | 2653 | |
d62a17ae | 2654 | if (!EVPN_ENABLED(zvrf)) |
2655 | return; | |
2656 | zvni = zvni_lookup(zvrf, vni); | |
2657 | if (!zvni) { | |
2658 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
2659 | return; | |
2660 | } | |
2661 | mac = zvni_mac_lookup(zvni, macaddr); | |
2662 | if (!mac) { | |
2663 | vty_out(vty, "%% Requested MAC does not exist in VNI %u\n", | |
2664 | vni); | |
2665 | return; | |
2666 | } | |
cec2e17d | 2667 | |
d62a17ae | 2668 | zvni_print_mac(mac, vty); |
cec2e17d | 2669 | } |
2670 | ||
2671 | /* | |
2672 | * Display MACs for a VNI from specific VTEP (VTY command handler). | |
2673 | */ | |
d62a17ae | 2674 | void zebra_vxlan_print_macs_vni_vtep(struct vty *vty, struct zebra_vrf *zvrf, |
cd233079 CS |
2675 | vni_t vni, struct in_addr vtep_ip, |
2676 | u_char use_json) | |
cec2e17d | 2677 | { |
d62a17ae | 2678 | zebra_vni_t *zvni; |
2679 | u_int32_t num_macs; | |
2680 | struct mac_walk_ctx wctx; | |
cd233079 CS |
2681 | json_object *json = NULL; |
2682 | json_object *json_mac = NULL; | |
cec2e17d | 2683 | |
d62a17ae | 2684 | if (!EVPN_ENABLED(zvrf)) |
2685 | return; | |
2686 | zvni = zvni_lookup(zvrf, vni); | |
2687 | if (!zvni) { | |
cd233079 CS |
2688 | if (use_json) |
2689 | vty_out(vty, "{}\n"); | |
2690 | else | |
2691 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
d62a17ae | 2692 | return; |
2693 | } | |
2694 | num_macs = hashcount(zvni->mac_table); | |
2695 | if (!num_macs) | |
2696 | return; | |
cd233079 CS |
2697 | |
2698 | if (use_json) { | |
2699 | json = json_object_new_object(); | |
2700 | json_mac = json_object_new_object(); | |
2701 | } | |
2702 | ||
d62a17ae | 2703 | memset(&wctx, 0, sizeof(struct mac_walk_ctx)); |
2704 | wctx.zvni = zvni; | |
2705 | wctx.vty = vty; | |
2706 | wctx.flags = SHOW_REMOTE_MAC_FROM_VTEP; | |
2707 | wctx.r_vtep_ip = vtep_ip; | |
cd233079 | 2708 | wctx.json = json_mac; |
d62a17ae | 2709 | hash_iterate(zvni->mac_table, zvni_print_mac_hash, &wctx); |
cd233079 CS |
2710 | |
2711 | if (use_json) { | |
2712 | json_object_int_add(json, "numMacs", wctx.count); | |
2713 | if (wctx.count) | |
2714 | json_object_object_add(json, "macs", json_mac); | |
2715 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
2716 | json, JSON_C_TO_STRING_PRETTY)); | |
2717 | json_object_free(json); | |
2718 | } | |
cec2e17d | 2719 | } |
2720 | ||
2721 | ||
2722 | /* | |
2723 | * Display VNI information (VTY command handler). | |
2724 | */ | |
cd233079 CS |
2725 | void zebra_vxlan_print_vni(struct vty *vty, struct zebra_vrf *zvrf, vni_t vni, |
2726 | u_char use_json) | |
cec2e17d | 2727 | { |
d62a17ae | 2728 | zebra_vni_t *zvni; |
cd233079 CS |
2729 | json_object *json = NULL; |
2730 | void *args[2]; | |
cec2e17d | 2731 | |
d62a17ae | 2732 | if (!EVPN_ENABLED(zvrf)) |
2733 | return; | |
2734 | zvni = zvni_lookup(zvrf, vni); | |
2735 | if (!zvni) { | |
cd233079 CS |
2736 | if (use_json) |
2737 | vty_out(vty, "{}\n"); | |
2738 | else | |
2739 | vty_out(vty, "%% VNI %u does not exist\n", vni); | |
d62a17ae | 2740 | return; |
2741 | } | |
cd233079 CS |
2742 | if (use_json) |
2743 | json = json_object_new_object(); | |
2744 | args[0] = vty; | |
2745 | args[1] = json; | |
2746 | zvni_print(zvni, (void *)args); | |
2747 | if (use_json) { | |
2748 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
2749 | json, JSON_C_TO_STRING_PRETTY)); | |
2750 | json_object_free(json); | |
2751 | } | |
cec2e17d | 2752 | } |
2753 | ||
2754 | /* | |
2755 | * Display VNI hash table (VTY command handler). | |
2756 | */ | |
cd233079 CS |
2757 | void zebra_vxlan_print_vnis(struct vty *vty, struct zebra_vrf *zvrf, |
2758 | u_char use_json) | |
cec2e17d | 2759 | { |
d62a17ae | 2760 | u_int32_t num_vnis; |
cd233079 CS |
2761 | json_object *json = NULL; |
2762 | void *args[2]; | |
cec2e17d | 2763 | |
d62a17ae | 2764 | if (!EVPN_ENABLED(zvrf)) |
2765 | return; | |
2766 | num_vnis = hashcount(zvrf->vni_table); | |
cd233079 CS |
2767 | if (!num_vnis) { |
2768 | if (use_json) | |
2769 | vty_out(vty, "{}\n"); | |
d62a17ae | 2770 | return; |
cd233079 CS |
2771 | } |
2772 | if (use_json) { | |
2773 | json = json_object_new_object(); | |
ddd16ed5 MK |
2774 | json_object_string_add(json, "advertiseGatewayMacip", |
2775 | zvrf->advertise_gw_macip ? "Yes" : "No"); | |
cd233079 CS |
2776 | json_object_int_add(json, "numVnis", num_vnis); |
2777 | } else { | |
ddd16ed5 MK |
2778 | vty_out(vty, "Advertise gateway mac-ip: %s\n", |
2779 | zvrf->advertise_gw_macip ? "Yes" : "No"); | |
cd233079 CS |
2780 | vty_out(vty, "Number of VNIs: %u\n", num_vnis); |
2781 | vty_out(vty, "%-10s %-21s %-15s %-8s %-8s %-15s\n", "VNI", | |
2782 | "VxLAN IF", "VTEP IP", "# MACs", "# ARPs", | |
2783 | "# Remote VTEPs"); | |
2784 | } | |
2785 | args[0] = vty; | |
2786 | args[1] = json; | |
2787 | ||
2788 | hash_iterate(zvrf->vni_table, | |
2789 | (void (*)(struct hash_backet *, void *))zvni_print_hash, | |
2790 | args); | |
2791 | ||
2792 | if (use_json) { | |
2793 | vty_out(vty, "%s\n", json_object_to_json_string_ext( | |
2794 | json, JSON_C_TO_STRING_PRETTY)); | |
2795 | json_object_free(json); | |
2796 | } | |
cec2e17d | 2797 | } |
2798 | ||
2232a77c | 2799 | /* |
2800 | * Handle neighbor delete (on a VLAN device / L3 interface) from the | |
2801 | * kernel. This may result in either the neighbor getting deleted from | |
2802 | * our database or being re-added to the kernel (if it is a valid | |
2803 | * remote neighbor). | |
2804 | */ | |
d62a17ae | 2805 | int zebra_vxlan_local_neigh_del(struct interface *ifp, |
2806 | struct interface *link_if, struct ipaddr *ip) | |
2807 | { | |
2808 | zebra_vni_t *zvni; | |
2809 | zebra_neigh_t *n; | |
2810 | struct zebra_vrf *zvrf; | |
2811 | char buf[INET6_ADDRSTRLEN]; | |
b6938a74 MK |
2812 | char buf2[ETHER_ADDR_STRLEN]; |
2813 | zebra_mac_t *zmac; | |
d62a17ae | 2814 | |
2815 | /* We are only interested in neighbors on an SVI that resides on top | |
2816 | * of a VxLAN bridge. | |
2817 | */ | |
2818 | zvni = zvni_map_svi(ifp, link_if); | |
2819 | if (!zvni) | |
2820 | return 0; | |
2821 | if (!zvni->vxlan_if) { | |
2822 | zlog_err( | |
2823 | "VNI %u hash %p doesn't have intf upon local neighbor DEL", | |
2824 | zvni->vni, zvni); | |
2825 | return -1; | |
2826 | } | |
2827 | ||
2828 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2829 | zlog_debug("%u:Del neighbor %s intf %s(%u) -> VNI %u", | |
2830 | ifp->vrf_id, ipaddr2str(ip, buf, sizeof(buf)), | |
2831 | ifp->name, ifp->ifindex, zvni->vni); | |
2832 | ||
2833 | /* If entry doesn't exist, nothing to do. */ | |
2834 | n = zvni_neigh_lookup(zvni, ip); | |
2835 | if (!n) | |
2836 | return 0; | |
2837 | ||
b6938a74 MK |
2838 | zmac = zvni_mac_lookup(zvni, &n->emac); |
2839 | if (!zmac) { | |
2840 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2841 | zlog_err( | |
2842 | "%u: trying to del a neigh %s without a mac %s on VNI %u", | |
2843 | ifp->vrf_id, ipaddr2str(ip, buf, sizeof(buf)), | |
2844 | prefix_mac2str(&n->emac, buf2, sizeof(buf2)), | |
2845 | zvni->vni); | |
2846 | ||
2847 | return 0; | |
2848 | } | |
2849 | ||
d62a17ae | 2850 | /* If it is a remote entry, the kernel has aged this out or someone has |
2851 | * deleted it, it needs to be re-installed as Quagga is the owner. | |
2852 | */ | |
2853 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE)) { | |
2854 | zvni_neigh_install(zvni, n); | |
2855 | return 0; | |
2856 | } | |
2857 | ||
2858 | /* Locate VRF corresponding to interface. */ | |
2859 | zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id); | |
2860 | assert(zvrf); | |
2861 | ||
2862 | /* Remove neighbor from BGP. */ | |
b6938a74 MK |
2863 | if (IS_ZEBRA_NEIGH_ACTIVE(n)) |
2864 | zvni_neigh_send_del_to_client(zvrf, zvni->vni, &n->ip, &n->emac, | |
2865 | 0); | |
d62a17ae | 2866 | |
2867 | /* Delete this neighbor entry. */ | |
2868 | zvni_neigh_del(zvni, n); | |
2869 | ||
b6938a74 MK |
2870 | /* see if the AUTO mac needs to be deleted */ |
2871 | if (CHECK_FLAG(zmac->flags, ZEBRA_MAC_AUTO) | |
2872 | || !listcount(zmac->neigh_list)) | |
2873 | zvni_mac_del(zvni, zmac); | |
2874 | ||
d62a17ae | 2875 | return 0; |
2232a77c | 2876 | } |
2877 | ||
2878 | /* | |
859b32c0 MK |
2879 | * Handle neighbor add or update (on a VLAN device / L3 interface) |
2880 | * from the kernel. | |
2232a77c | 2881 | */ |
d62a17ae | 2882 | int zebra_vxlan_local_neigh_add_update(struct interface *ifp, |
2883 | struct interface *link_if, | |
2884 | struct ipaddr *ip, | |
2885 | struct ethaddr *macaddr, u_int16_t state, | |
2886 | u_char ext_learned) | |
2887 | { | |
2888 | zebra_vni_t *zvni; | |
2889 | zebra_neigh_t *n; | |
2890 | struct zebra_vrf *zvrf; | |
b682f6de | 2891 | zebra_mac_t *zmac, *old_zmac; |
d62a17ae | 2892 | char buf[ETHER_ADDR_STRLEN]; |
2893 | char buf2[INET6_ADDRSTRLEN]; | |
d62a17ae | 2894 | |
2895 | /* We are only interested in neighbors on an SVI that resides on top | |
2896 | * of a VxLAN bridge. | |
2897 | */ | |
2898 | zvni = zvni_map_svi(ifp, link_if); | |
2899 | if (!zvni) | |
2900 | return 0; | |
2901 | ||
2902 | /* Locate VRF corresponding to interface. */ | |
2903 | zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id); | |
2904 | assert(zvrf); | |
2905 | ||
2906 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2907 | zlog_debug( | |
2908 | "%u:Add/Update neighbor %s MAC %s intf %s(%u) state 0x%x " | |
2909 | "%s-> VNI %u", | |
2910 | ifp->vrf_id, ipaddr2str(ip, buf2, sizeof(buf2)), | |
2911 | prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name, | |
2912 | ifp->ifindex, state, ext_learned ? "ext-learned " : "", | |
2913 | zvni->vni); | |
2914 | ||
b6938a74 MK |
2915 | /* create a dummy MAC if the MAC is not already present */ |
2916 | zmac = zvni_mac_lookup(zvni, macaddr); | |
2917 | if (!zmac) { | |
2918 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2919 | zlog_debug( | |
2920 | "%u: AUTO MAC %s created for neigh %s on VNI %u", | |
2921 | ifp->vrf_id, | |
2922 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2923 | ipaddr2str(ip, buf2, sizeof(buf2)), zvni->vni); | |
2924 | ||
2925 | zmac = zvni_mac_add(zvni, macaddr); | |
2926 | if (!zmac) { | |
2927 | zlog_warn("%u:Failed to add MAC %s VNI %u", | |
2928 | zvrf_id(zvrf), | |
2929 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2930 | zvni->vni); | |
2931 | return -1; | |
2932 | } | |
2933 | ||
2934 | memset(&zmac->fwd_info, 0, sizeof(zmac->fwd_info)); | |
2935 | memset(&zmac->flags, 0, sizeof(u_int32_t)); | |
2936 | SET_FLAG(zmac->flags, ZEBRA_MAC_AUTO); | |
2937 | } | |
2938 | ||
d62a17ae | 2939 | /* If same entry already exists, it might be a change or it might be a |
2940 | * move from remote to local. | |
2941 | */ | |
2942 | n = zvni_neigh_lookup(zvni, ip); | |
2943 | if (n) { | |
2944 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_LOCAL)) { | |
2945 | if (memcmp(n->emac.octet, macaddr->octet, | |
ff8b7eb8 | 2946 | ETH_ALEN) |
d62a17ae | 2947 | == 0) { |
b682f6de | 2948 | /* Update any params and return - client doesn't |
2949 | * care about a purely local change. | |
2950 | */ | |
2951 | n->ifindex = ifp->ifindex; | |
2952 | return 0; | |
2953 | } else { | |
2954 | /* If the MAC has changed, | |
2955 | * need to issue a delete first | |
2956 | * as this means a different MACIP route. | |
2957 | * Also, need to do some unlinking/relinking. | |
d62a17ae | 2958 | */ |
b682f6de | 2959 | zvni_neigh_send_del_to_client(zvrf, zvni->vni, |
2960 | &n->ip, &n->emac, | |
2961 | 0); | |
2962 | old_zmac = zvni_mac_lookup(zvni, &n->emac); | |
2963 | if (old_zmac) { | |
2964 | listnode_delete(old_zmac->neigh_list, | |
2965 | n); | |
2966 | zvni_deref_ip2mac(zvni, old_zmac, 0); | |
2967 | } | |
2968 | ||
2969 | /* Set "local" forwarding info. */ | |
2970 | SET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL); | |
2971 | n->ifindex = ifp->ifindex; | |
2972 | memcpy(&n->emac, macaddr, ETH_ALEN); | |
2973 | ||
2974 | /* Link to new MAC */ | |
2975 | listnode_add_sort(zmac->neigh_list, n); | |
2976 | } | |
d62a17ae | 2977 | } else if (ext_learned) |
2978 | /* The neighbor is remote and that is the notification we got. | |
9d303b37 | 2979 | */ |
d62a17ae | 2980 | { |
859b32c0 | 2981 | /* TODO: Evaluate if we need to do anything here. */ |
d62a17ae | 2982 | return 0; |
2983 | } else | |
2984 | /* Neighbor has moved from remote to local. */ | |
2985 | { | |
2986 | UNSET_FLAG(n->flags, ZEBRA_NEIGH_REMOTE); | |
2987 | n->r_vtep_ip.s_addr = 0; | |
b682f6de | 2988 | SET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL); |
2989 | n->ifindex = ifp->ifindex; | |
d62a17ae | 2990 | } |
2991 | } else { | |
b6938a74 | 2992 | n = zvni_neigh_add(zvni, ip, macaddr); |
d62a17ae | 2993 | if (!n) { |
2994 | zlog_err( | |
2995 | "%u:Failed to add neighbor %s MAC %s intf %s(%u) -> VNI %u", | |
2996 | ifp->vrf_id, ipaddr2str(ip, buf2, sizeof(buf2)), | |
2997 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
2998 | ifp->name, ifp->ifindex, zvni->vni); | |
2999 | return -1; | |
3000 | } | |
b682f6de | 3001 | /* Set "local" forwarding info. */ |
3002 | SET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL); | |
3003 | n->ifindex = ifp->ifindex; | |
d62a17ae | 3004 | } |
3005 | ||
b6938a74 MK |
3006 | /* Before we program this in BGP, we need to check if MAC is locally |
3007 | * learnt as well */ | |
3008 | if (!CHECK_FLAG(zmac->flags, ZEBRA_MAC_LOCAL)) { | |
3009 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3010 | zlog_debug( | |
3011 | "%u: Skipping neigh %s add to client as MAC %s is not local on VNI %u", | |
3012 | ifp->vrf_id, ipaddr2str(ip, buf2, sizeof(buf2)), | |
3013 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
3014 | zvni->vni); | |
3015 | ||
3016 | return 0; | |
3017 | } | |
3018 | ||
b682f6de | 3019 | /* Inform BGP. */ |
3020 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3021 | zlog_debug( | |
3022 | "%u: neigh %s (MAC %s) is now ACTIVE on VNI %u", | |
3023 | ifp->vrf_id, ipaddr2str(ip, buf2, sizeof(buf2)), | |
3024 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
3025 | zvni->vni); | |
d62a17ae | 3026 | |
b682f6de | 3027 | ZEBRA_NEIGH_SET_ACTIVE(n); |
3028 | return zvni_neigh_send_add_to_client(zvrf, zvni->vni, ip, | |
3029 | macaddr, 0); | |
2232a77c | 3030 | } |
3031 | ||
b682f6de | 3032 | |
2232a77c | 3033 | /* |
3034 | * Handle message from client to delete a remote MACIP for a VNI. | |
3035 | */ | |
d62a17ae | 3036 | int zebra_vxlan_remote_macip_del(struct zserv *client, int sock, u_short length, |
3037 | struct zebra_vrf *zvrf) | |
3038 | { | |
3039 | struct stream *s; | |
3040 | vni_t vni; | |
3041 | struct ethaddr macaddr; | |
3042 | struct ipaddr ip; | |
3043 | struct in_addr vtep_ip; | |
3044 | zebra_vni_t *zvni; | |
3045 | zebra_mac_t *mac; | |
3046 | zebra_neigh_t *n; | |
3047 | u_short l = 0, ipa_len; | |
3048 | char buf[ETHER_ADDR_STRLEN]; | |
3049 | char buf1[INET6_ADDRSTRLEN]; | |
b5ebdc9b | 3050 | struct interface *ifp = NULL; |
3051 | struct zebra_if *zif = NULL; | |
d62a17ae | 3052 | |
3053 | s = client->ibuf; | |
3054 | ||
3055 | while (l < length) { | |
3056 | /* Obtain each remote MACIP and process. */ | |
3057 | /* Message contains VNI, followed by MAC followed by IP (if any) | |
3058 | * followed by remote VTEP IP. | |
3059 | */ | |
3060 | mac = NULL; | |
3061 | n = NULL; | |
3062 | memset(&ip, 0, sizeof(ip)); | |
3063 | vni = (vni_t)stream_getl(s); | |
ff8b7eb8 | 3064 | stream_get(&macaddr.octet, s, ETH_ALEN); |
d62a17ae | 3065 | ipa_len = stream_getl(s); |
3066 | if (ipa_len) { | |
3067 | ip.ipa_type = (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 | |
3068 | : IPADDR_V6; | |
3069 | stream_get(&ip.ip.addr, s, ipa_len); | |
3070 | } | |
ff8b7eb8 | 3071 | l += 4 + ETH_ALEN + 4 + ipa_len; |
d62a17ae | 3072 | vtep_ip.s_addr = stream_get_ipv4(s); |
3073 | l += IPV4_MAX_BYTELEN; | |
3074 | ||
3075 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3076 | zlog_debug( | |
3077 | "%u:Recv MACIP Del MAC %s IP %s VNI %u Remote VTEP %s from %s", | |
3078 | zvrf_id(zvrf), | |
3079 | prefix_mac2str(&macaddr, buf, sizeof(buf)), | |
3080 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni, | |
3081 | inet_ntoa(vtep_ip), | |
3082 | zebra_route_string(client->proto)); | |
3083 | ||
3084 | /* Locate VNI hash entry - expected to exist. */ | |
3085 | zvni = zvni_lookup(zvrf, vni); | |
3086 | if (!zvni) { | |
3087 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3088 | zlog_debug( | |
3089 | "Failed to locate VNI hash upon remote MACIP DEL, " | |
3090 | "VRF %d VNI %u", | |
3091 | zvrf_id(zvrf), vni); | |
3092 | continue; | |
3093 | } | |
b5ebdc9b | 3094 | ifp = zvni->vxlan_if; |
af026ae4 | 3095 | if (!ifp) { |
d62a17ae | 3096 | zlog_err( |
3097 | "VNI %u hash %p doesn't have intf upon remote MACIP DEL", | |
3098 | vni, zvni); | |
3099 | continue; | |
3100 | } | |
b5ebdc9b | 3101 | zif = ifp->info; |
3102 | ||
3103 | /* If down or not mapped to a bridge, we're done. */ | |
b682f6de | 3104 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) |
b5ebdc9b | 3105 | continue; |
d62a17ae | 3106 | |
3107 | /* The remote VTEP specified is normally expected to exist, but | |
3108 | * it is | |
3109 | * possible that the peer may delete the VTEP before deleting | |
3110 | * any MACs | |
3111 | * referring to the VTEP, in which case the handler (see | |
3112 | * remote_vtep_del) | |
3113 | * would have already deleted the MACs. | |
3114 | */ | |
3115 | if (!zvni_vtep_find(zvni, &vtep_ip)) | |
3116 | continue; | |
3117 | ||
d62a17ae | 3118 | mac = zvni_mac_lookup(zvni, &macaddr); |
3119 | if (ipa_len) | |
3120 | n = zvni_neigh_lookup(zvni, &ip); | |
3121 | ||
3122 | if (n && !mac) { | |
3123 | zlog_err( | |
3124 | "failed to locate MAC %s for neigh %s in VRF %u VNI %u", | |
3125 | prefix_mac2str(&macaddr, buf, sizeof(buf)), | |
3126 | ipaddr2str(&ip, buf1, sizeof(buf1)), | |
3127 | zvrf_id(zvrf), vni); | |
3128 | continue; | |
3129 | } | |
3130 | ||
3131 | /* If the remote mac or neighbor doesn't exist there is nothing | |
3132 | * more | |
3133 | * to do. Otherwise, uninstall the entry and then remove it. | |
3134 | */ | |
3135 | if (!mac && !n) | |
3136 | continue; | |
3137 | ||
3138 | /* Uninstall remote neighbor or MAC. */ | |
3139 | if (n) { | |
3140 | /* When the MAC changes for an IP, it is possible the | |
3141 | * client may | |
3142 | * update the new MAC before trying to delete the "old" | |
3143 | * neighbor | |
3144 | * (as these are two different MACIP routes). Do the | |
3145 | * delete only | |
3146 | * if the MAC matches. | |
3147 | */ | |
3148 | if (CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE) | |
3149 | && (memcmp(n->emac.octet, macaddr.octet, | |
ff8b7eb8 | 3150 | ETH_ALEN) |
d62a17ae | 3151 | == 0)) { |
3152 | zvni_neigh_uninstall(zvni, n); | |
3153 | zvni_neigh_del(zvni, n); | |
3154 | zvni_deref_ip2mac(zvni, mac, 1); | |
3155 | } | |
3156 | } else { | |
3157 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { | |
b6938a74 MK |
3158 | zvni_process_neigh_on_remote_mac_del(zvrf, zvni, |
3159 | mac); | |
3160 | ||
0a97666d | 3161 | if (list_isempty(mac->neigh_list)) { |
d62a17ae | 3162 | zvni_mac_uninstall(zvni, mac, 0); |
3163 | zvni_mac_del(zvni, mac); | |
3164 | } else | |
3165 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
3166 | } | |
3167 | } | |
3168 | } | |
3169 | ||
3170 | return 0; | |
2232a77c | 3171 | } |
3172 | ||
3173 | /* | |
3174 | * Handle message from client to add a remote MACIP for a VNI. This | |
3175 | * could be just the add of a MAC address or the add of a neighbor | |
3176 | * (IP+MAC). | |
3177 | */ | |
d62a17ae | 3178 | int zebra_vxlan_remote_macip_add(struct zserv *client, int sock, u_short length, |
3179 | struct zebra_vrf *zvrf) | |
3180 | { | |
3181 | struct stream *s; | |
3182 | vni_t vni; | |
3183 | struct ethaddr macaddr; | |
3184 | struct ipaddr ip; | |
3185 | struct in_addr vtep_ip; | |
3186 | zebra_vni_t *zvni; | |
3187 | zebra_vtep_t *zvtep; | |
3188 | zebra_mac_t *mac, *old_mac; | |
3189 | zebra_neigh_t *n; | |
3190 | u_short l = 0, ipa_len; | |
3191 | int update_mac = 0, update_neigh = 0; | |
3192 | char buf[ETHER_ADDR_STRLEN]; | |
3193 | char buf1[INET6_ADDRSTRLEN]; | |
3194 | u_char sticky; | |
b5ebdc9b | 3195 | struct interface *ifp = NULL; |
3196 | struct zebra_if *zif = NULL; | |
d62a17ae | 3197 | |
3198 | assert(EVPN_ENABLED(zvrf)); | |
3199 | ||
3200 | s = client->ibuf; | |
3201 | ||
3202 | while (l < length) { | |
3203 | /* Obtain each remote MACIP and process. */ | |
3204 | /* Message contains VNI, followed by MAC followed by IP (if any) | |
3205 | * followed by remote VTEP IP. | |
3206 | */ | |
3207 | update_mac = update_neigh = 0; | |
3208 | mac = NULL; | |
3209 | n = NULL; | |
3210 | memset(&ip, 0, sizeof(ip)); | |
3211 | vni = (vni_t)stream_getl(s); | |
ff8b7eb8 | 3212 | stream_get(&macaddr.octet, s, ETH_ALEN); |
d62a17ae | 3213 | ipa_len = stream_getl(s); |
3214 | if (ipa_len) { | |
3215 | ip.ipa_type = (ipa_len == IPV4_MAX_BYTELEN) ? IPADDR_V4 | |
3216 | : IPADDR_V6; | |
3217 | stream_get(&ip.ip.addr, s, ipa_len); | |
3218 | } | |
ff8b7eb8 | 3219 | l += 4 + ETH_ALEN + 4 + ipa_len; |
d62a17ae | 3220 | vtep_ip.s_addr = stream_get_ipv4(s); |
3221 | l += IPV4_MAX_BYTELEN; | |
3222 | ||
3223 | /* Get 'sticky' flag. */ | |
3224 | sticky = stream_getc(s); | |
3225 | l++; | |
3226 | ||
3227 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3228 | zlog_debug( | |
3229 | "%u:Recv MACIP Add %sMAC %s IP %s VNI %u Remote VTEP %s from %s", | |
3230 | zvrf_id(zvrf), sticky ? "sticky " : "", | |
3231 | prefix_mac2str(&macaddr, buf, sizeof(buf)), | |
3232 | ipaddr2str(&ip, buf1, sizeof(buf1)), vni, | |
3233 | inet_ntoa(vtep_ip), | |
3234 | zebra_route_string(client->proto)); | |
3235 | ||
3236 | /* Locate VNI hash entry - expected to exist. */ | |
3237 | zvni = zvni_lookup(zvrf, vni); | |
3238 | if (!zvni) { | |
3239 | zlog_err( | |
3240 | "Failed to locate VNI hash upon remote MACIP ADD, VRF %d VNI %u", | |
3241 | zvrf_id(zvrf), vni); | |
3242 | continue; | |
3243 | } | |
b5ebdc9b | 3244 | ifp = zvni->vxlan_if; |
3245 | if (!ifp) { | |
d62a17ae | 3246 | zlog_err( |
3247 | "VNI %u hash %p doesn't have intf upon remote MACIP add", | |
3248 | vni, zvni); | |
3249 | continue; | |
3250 | } | |
b5ebdc9b | 3251 | zif = ifp->info; |
3252 | ||
3253 | /* If down or not mapped to a bridge, we're done. */ | |
b682f6de | 3254 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) |
d62a17ae | 3255 | continue; |
3256 | ||
3257 | /* The remote VTEP specified should normally exist, but it is | |
3258 | * possible | |
3259 | * that when peering comes up, peer may advertise MACIP routes | |
3260 | * before | |
3261 | * advertising type-3 routes. | |
3262 | */ | |
3263 | zvtep = zvni_vtep_find(zvni, &vtep_ip); | |
3264 | if (!zvtep) { | |
3265 | if (zvni_vtep_add(zvni, &vtep_ip) == NULL) { | |
3266 | zlog_err( | |
3267 | "Failed to add remote VTEP, VRF %d VNI %u zvni %p", | |
3268 | zvrf_id(zvrf), vni, zvni); | |
3269 | continue; | |
3270 | } | |
3271 | ||
3272 | zvni_vtep_install(zvni, &vtep_ip); | |
3273 | } | |
3274 | ||
3275 | /* First, check if the remote MAC is unknown or has a change. If | |
3276 | * so, | |
3277 | * that needs to be updated first. Note that client could | |
3278 | * install | |
3279 | * MAC and MACIP separately or just install the latter. | |
3280 | */ | |
3281 | mac = zvni_mac_lookup(zvni, &macaddr); | |
3282 | if (!mac || !CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE) | |
3283 | || (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) ? 1 : 0) | |
3284 | != sticky | |
3285 | || !IPV4_ADDR_SAME(&mac->fwd_info.r_vtep_ip, &vtep_ip)) | |
3286 | update_mac = 1; | |
3287 | ||
3288 | if (update_mac) { | |
3289 | if (!mac) { | |
3290 | mac = zvni_mac_add(zvni, &macaddr); | |
3291 | if (!mac) { | |
3292 | zlog_warn( | |
3293 | "%u:Failed to add MAC %s VNI %u Remote VTEP %s", | |
3294 | zvrf_id(zvrf), | |
3295 | prefix_mac2str(&macaddr, buf, | |
3296 | sizeof(buf)), | |
3297 | vni, inet_ntoa(vtep_ip)); | |
3298 | return -1; | |
3299 | } | |
3300 | ||
3301 | /* Is this MAC created for a MACIP? */ | |
3302 | if (ipa_len) | |
3303 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
d62a17ae | 3304 | } |
3305 | ||
3306 | /* Set "auto" and "remote" forwarding info. */ | |
3307 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
3308 | memset(&mac->fwd_info, 0, sizeof(mac->fwd_info)); | |
3309 | SET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
3310 | mac->fwd_info.r_vtep_ip = vtep_ip; | |
3311 | ||
3312 | if (sticky) | |
3313 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
3314 | else | |
3315 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
3316 | ||
b6938a74 MK |
3317 | zvni_process_neigh_on_remote_mac_add(zvrf, zvni, mac); |
3318 | ||
d62a17ae | 3319 | /* Install the entry. */ |
3320 | zvni_mac_install(zvni, mac); | |
3321 | } | |
3322 | ||
3323 | /* If there is no IP, continue - after clearing AUTO flag of | |
3324 | * MAC. */ | |
3325 | if (!ipa_len) { | |
3326 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
3327 | continue; | |
3328 | } | |
3329 | ||
3330 | /* Check if the remote neighbor itself is unknown or has a | |
3331 | * change. | |
3332 | * If so, create or update and then install the entry. | |
3333 | */ | |
3334 | n = zvni_neigh_lookup(zvni, &ip); | |
3335 | if (!n || !CHECK_FLAG(n->flags, ZEBRA_NEIGH_REMOTE) | |
3336 | || (memcmp(&n->emac, &macaddr, sizeof(macaddr)) != 0) | |
3337 | || !IPV4_ADDR_SAME(&n->r_vtep_ip, &vtep_ip)) | |
3338 | update_neigh = 1; | |
3339 | ||
3340 | if (update_neigh) { | |
3341 | if (!n) { | |
b6938a74 | 3342 | n = zvni_neigh_add(zvni, &ip, &macaddr); |
d62a17ae | 3343 | if (!n) { |
3344 | zlog_warn( | |
3345 | "%u:Failed to add Neigh %s MAC %s VNI %u Remote VTEP %s", | |
3346 | zvrf_id(zvrf), | |
3347 | ipaddr2str(&ip, buf1, | |
3348 | sizeof(buf1)), | |
3349 | prefix_mac2str(&macaddr, buf, | |
3350 | sizeof(buf)), | |
3351 | vni, inet_ntoa(vtep_ip)); | |
3352 | return -1; | |
3353 | } | |
3354 | ||
d62a17ae | 3355 | } else if (memcmp(&n->emac, &macaddr, sizeof(macaddr)) |
3356 | != 0) { | |
0a97666d MK |
3357 | /* MAC change, update neigh list for old and new |
3358 | * mac */ | |
d62a17ae | 3359 | old_mac = zvni_mac_lookup(zvni, &n->emac); |
0a97666d MK |
3360 | if (old_mac) { |
3361 | listnode_delete(old_mac->neigh_list, n); | |
d62a17ae | 3362 | zvni_deref_ip2mac(zvni, old_mac, 1); |
0a97666d MK |
3363 | } |
3364 | listnode_add_sort(mac->neigh_list, n); | |
b6938a74 | 3365 | memcpy(&n->emac, &macaddr, ETH_ALEN); |
d62a17ae | 3366 | } |
3367 | ||
3368 | /* Set "remote" forwarding info. */ | |
3369 | UNSET_FLAG(n->flags, ZEBRA_NEIGH_LOCAL); | |
3370 | /* TODO: Handle MAC change. */ | |
d62a17ae | 3371 | n->r_vtep_ip = vtep_ip; |
3372 | SET_FLAG(n->flags, ZEBRA_NEIGH_REMOTE); | |
3373 | ||
3374 | /* Install the entry. */ | |
3375 | zvni_neigh_install(zvni, n); | |
3376 | } | |
3377 | } | |
3378 | ||
3379 | return 0; | |
13d60d35 | 3380 | } |
3381 | ||
3382 | /* | |
2232a77c | 3383 | * Handle notification of MAC add/update over VxLAN. If the kernel is notifying |
3384 | * us, this must involve a multihoming scenario. Treat this as implicit delete | |
3385 | * of any prior local MAC. | |
13d60d35 | 3386 | */ |
d62a17ae | 3387 | int zebra_vxlan_check_del_local_mac(struct interface *ifp, |
3388 | struct interface *br_if, | |
3389 | struct ethaddr *macaddr, vlanid_t vid) | |
13d60d35 | 3390 | { |
d62a17ae | 3391 | struct zebra_if *zif; |
3392 | struct zebra_vrf *zvrf; | |
3393 | struct zebra_l2info_vxlan *vxl; | |
3394 | vni_t vni; | |
3395 | zebra_vni_t *zvni; | |
3396 | zebra_mac_t *mac; | |
3397 | char buf[ETHER_ADDR_STRLEN]; | |
3398 | u_char sticky; | |
13d60d35 | 3399 | |
d62a17ae | 3400 | zif = ifp->info; |
3401 | assert(zif); | |
3402 | vxl = &zif->l2info.vxl; | |
3403 | vni = vxl->vni; | |
13d60d35 | 3404 | |
d62a17ae | 3405 | /* Locate VRF corresponding to interface. */ |
3406 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
3407 | assert(zvrf); | |
13d60d35 | 3408 | |
d62a17ae | 3409 | /* If EVPN is not enabled, nothing to do. */ |
3410 | if (!EVPN_ENABLED(zvrf)) | |
3411 | return 0; | |
13d60d35 | 3412 | |
d62a17ae | 3413 | /* Locate hash entry; it is expected to exist. */ |
3414 | zvni = zvni_lookup(zvrf, vni); | |
3415 | if (!zvni) | |
3416 | return 0; | |
13d60d35 | 3417 | |
d62a17ae | 3418 | /* If entry doesn't exist, nothing to do. */ |
3419 | mac = zvni_mac_lookup(zvni, macaddr); | |
3420 | if (!mac) | |
3421 | return 0; | |
13d60d35 | 3422 | |
d62a17ae | 3423 | /* Is it a local entry? */ |
3424 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) | |
3425 | return 0; | |
13d60d35 | 3426 | |
d62a17ae | 3427 | if (IS_ZEBRA_DEBUG_VXLAN) |
3428 | zlog_debug( | |
3429 | "%u:Add/update remote MAC %s intf %s(%u) VNI %u - del local", | |
3430 | ifp->vrf_id, prefix_mac2str(macaddr, buf, sizeof(buf)), | |
3431 | ifp->name, ifp->ifindex, vni); | |
13d60d35 | 3432 | |
d62a17ae | 3433 | /* Remove MAC from BGP. */ |
3434 | sticky = CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) ? 1 : 0; | |
1a98c087 MK |
3435 | zvni_mac_send_del_to_client(zvrf, zvni->vni, macaddr, |
3436 | (sticky ? ZEBRA_MAC_TYPE_STICKY : 0)); | |
13d60d35 | 3437 | |
b6938a74 MK |
3438 | /* |
3439 | * If there are no neigh associated with the mac delete the mac | |
3440 | * else mark it as AUTO for forward reference | |
3441 | */ | |
3442 | if (!listcount(mac->neigh_list)) { | |
3443 | zvni_mac_del(zvni, mac); | |
3444 | } else { | |
3445 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
3446 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
3447 | } | |
13d60d35 | 3448 | |
d62a17ae | 3449 | return 0; |
13d60d35 | 3450 | } |
3451 | ||
3452 | /* | |
2232a77c | 3453 | * Handle remote MAC delete by kernel; readd the remote MAC if we have it. |
3454 | * This can happen because the remote MAC entries are also added as "dynamic", | |
3455 | * so the kernel can ageout the entry. | |
13d60d35 | 3456 | */ |
d62a17ae | 3457 | int zebra_vxlan_check_readd_remote_mac(struct interface *ifp, |
3458 | struct interface *br_if, | |
3459 | struct ethaddr *macaddr, vlanid_t vid) | |
13d60d35 | 3460 | { |
d62a17ae | 3461 | struct zebra_if *zif; |
3462 | struct zebra_vrf *zvrf; | |
3463 | struct zebra_l2info_vxlan *vxl; | |
3464 | vni_t vni; | |
3465 | zebra_vni_t *zvni; | |
3466 | zebra_mac_t *mac; | |
3467 | char buf[ETHER_ADDR_STRLEN]; | |
2232a77c | 3468 | |
d62a17ae | 3469 | zif = ifp->info; |
3470 | assert(zif); | |
3471 | vxl = &zif->l2info.vxl; | |
3472 | vni = vxl->vni; | |
2232a77c | 3473 | |
d62a17ae | 3474 | /* Locate VRF corresponding to interface. */ |
3475 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
3476 | assert(zvrf); | |
13d60d35 | 3477 | |
d62a17ae | 3478 | /* If EVPN is not enabled, nothing to do. */ |
3479 | if (!EVPN_ENABLED(zvrf)) | |
3480 | return 0; | |
2232a77c | 3481 | |
d62a17ae | 3482 | /* Locate hash entry; it is expected to exist. */ |
3483 | zvni = zvni_lookup(zvrf, vni); | |
3484 | if (!zvni) | |
3485 | return 0; | |
13d60d35 | 3486 | |
d62a17ae | 3487 | /* If entry doesn't exist, nothing to do. */ |
3488 | mac = zvni_mac_lookup(zvni, macaddr); | |
3489 | if (!mac) | |
3490 | return 0; | |
2232a77c | 3491 | |
d62a17ae | 3492 | /* Is it a remote entry? */ |
3493 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) | |
3494 | return 0; | |
2232a77c | 3495 | |
d62a17ae | 3496 | if (IS_ZEBRA_DEBUG_VXLAN) |
3497 | zlog_debug("%u:Del remote MAC %s intf %s(%u) VNI %u - readd", | |
3498 | ifp->vrf_id, | |
3499 | prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name, | |
3500 | ifp->ifindex, vni); | |
13d60d35 | 3501 | |
d62a17ae | 3502 | zvni_mac_install(zvni, mac); |
3503 | return 0; | |
13d60d35 | 3504 | } |
3505 | ||
3506 | /* | |
2232a77c | 3507 | * Handle local MAC delete (on a port or VLAN corresponding to this VNI). |
13d60d35 | 3508 | */ |
d62a17ae | 3509 | int zebra_vxlan_local_mac_del(struct interface *ifp, struct interface *br_if, |
3510 | struct ethaddr *macaddr, vlanid_t vid) | |
13d60d35 | 3511 | { |
d62a17ae | 3512 | zebra_vni_t *zvni; |
3513 | zebra_mac_t *mac; | |
3514 | struct zebra_vrf *zvrf; | |
3515 | char buf[ETHER_ADDR_STRLEN]; | |
3516 | u_char sticky; | |
13d60d35 | 3517 | |
d62a17ae | 3518 | /* We are interested in MACs only on ports or (port, VLAN) that |
3519 | * map to a VNI. | |
3520 | */ | |
3521 | zvni = zvni_map_vlan(ifp, br_if, vid); | |
3522 | if (!zvni) | |
3523 | return 0; | |
3524 | if (!zvni->vxlan_if) { | |
3525 | zlog_err("VNI %u hash %p doesn't have intf upon local MAC DEL", | |
3526 | zvni->vni, zvni); | |
3527 | return -1; | |
3528 | } | |
13d60d35 | 3529 | |
d62a17ae | 3530 | if (IS_ZEBRA_DEBUG_VXLAN) |
3531 | zlog_debug("%u:Del MAC %s intf %s(%u) VID %u -> VNI %u", | |
3532 | ifp->vrf_id, | |
3533 | prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name, | |
3534 | ifp->ifindex, vid, zvni->vni); | |
2232a77c | 3535 | |
d62a17ae | 3536 | /* If entry doesn't exist, nothing to do. */ |
3537 | mac = zvni_mac_lookup(zvni, macaddr); | |
3538 | if (!mac) | |
3539 | return 0; | |
2232a77c | 3540 | |
d62a17ae | 3541 | /* Is it a local entry? */ |
3542 | if (!CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) | |
3543 | return 0; | |
2232a77c | 3544 | |
d62a17ae | 3545 | /* Locate VRF corresponding to interface. */ |
3546 | zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id); | |
3547 | assert(zvrf); | |
2232a77c | 3548 | |
d62a17ae | 3549 | /* Remove MAC from BGP. */ |
3550 | sticky = CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) ? 1 : 0; | |
1a98c087 MK |
3551 | zvni_mac_send_del_to_client(zvrf, zvni->vni, macaddr, |
3552 | (sticky ? ZEBRA_MAC_TYPE_STICKY : 0)); | |
2232a77c | 3553 | |
b6938a74 MK |
3554 | /* Update all the neigh entries associated with this mac */ |
3555 | zvni_process_neigh_on_local_mac_del(zvrf, zvni, mac); | |
3556 | ||
3557 | /* | |
3558 | * If there are no neigh associated with the mac delete the mac | |
3559 | * else mark it as AUTO for forward reference | |
3560 | */ | |
3561 | if (!listcount(mac->neigh_list)) { | |
3562 | zvni_mac_del(zvni, mac); | |
3563 | } else { | |
3564 | UNSET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); | |
3565 | SET_FLAG(mac->flags, ZEBRA_MAC_AUTO); | |
3566 | } | |
2232a77c | 3567 | |
d62a17ae | 3568 | return 0; |
13d60d35 | 3569 | } |
3570 | ||
3571 | /* | |
2232a77c | 3572 | * Handle local MAC add (on a port or VLAN corresponding to this VNI). |
13d60d35 | 3573 | */ |
d62a17ae | 3574 | int zebra_vxlan_local_mac_add_update(struct interface *ifp, |
3575 | struct interface *br_if, | |
3576 | struct ethaddr *macaddr, vlanid_t vid, | |
3577 | u_char sticky) | |
3578 | { | |
3579 | zebra_vni_t *zvni; | |
3580 | zebra_mac_t *mac; | |
3581 | struct zebra_vrf *zvrf; | |
3582 | char buf[ETHER_ADDR_STRLEN]; | |
3583 | int add = 1; | |
3584 | u_char mac_sticky; | |
3585 | ||
3586 | /* We are interested in MACs only on ports or (port, VLAN) that | |
3587 | * map to a VNI. | |
3588 | */ | |
3589 | zvni = zvni_map_vlan(ifp, br_if, vid); | |
3590 | if (!zvni) { | |
3591 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3592 | zlog_debug( | |
3593 | "%u:Add/Update %sMAC %s intf %s(%u) VID %u, could not find VNI", | |
3594 | ifp->vrf_id, sticky ? "sticky " : "", | |
3595 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
3596 | ifp->name, ifp->ifindex, vid); | |
3597 | return 0; | |
3598 | } | |
3599 | ||
3600 | if (!zvni->vxlan_if) { | |
3601 | zlog_err("VNI %u hash %p doesn't have intf upon local MAC ADD", | |
3602 | zvni->vni, zvni); | |
3603 | return -1; | |
3604 | } | |
3605 | ||
3606 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3607 | zlog_debug( | |
3608 | "%u:Add/Update %sMAC %s intf %s(%u) VID %u -> VNI %u", | |
3609 | ifp->vrf_id, sticky ? "sticky " : "", | |
3610 | prefix_mac2str(macaddr, buf, sizeof(buf)), ifp->name, | |
3611 | ifp->ifindex, vid, zvni->vni); | |
3612 | ||
3613 | /* If same entry already exists, nothing to do. */ | |
3614 | mac = zvni_mac_lookup(zvni, macaddr); | |
3615 | if (mac) { | |
3616 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_LOCAL)) { | |
3617 | mac_sticky = CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY) | |
3618 | ? 1 | |
3619 | : 0; | |
3620 | ||
b6938a74 | 3621 | |
b8ce75a5 MK |
3622 | /* |
3623 | * return if nothing has changed. | |
3624 | * inform bgp if sticky flag has changed | |
3625 | * update locally and do not inform bgp if local | |
3626 | * parameters like interface has changed | |
3627 | */ | |
d62a17ae | 3628 | if (mac_sticky == sticky |
3629 | && mac->fwd_info.local.ifindex == ifp->ifindex | |
3630 | && mac->fwd_info.local.vid == vid) { | |
3631 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3632 | zlog_debug( | |
3633 | "%u:Add/Update %sMAC %s intf %s(%u) VID %u -> VNI %u, " | |
3634 | "entry exists and has not changed ", | |
3635 | ifp->vrf_id, | |
3636 | sticky ? "sticky " : "", | |
3637 | prefix_mac2str(macaddr, buf, | |
3638 | sizeof(buf)), | |
3639 | ifp->name, ifp->ifindex, vid, | |
3640 | zvni->vni); | |
3641 | return 0; | |
b6938a74 | 3642 | } else if (mac_sticky != sticky) { |
b8ce75a5 | 3643 | add = 1; |
b6938a74 | 3644 | } else { |
b8ce75a5 MK |
3645 | add = 0; /* This is an update of local |
3646 | interface. */ | |
b6938a74 | 3647 | } |
421bb26a MK |
3648 | } else if (CHECK_FLAG(mac->flags, ZEBRA_MAC_REMOTE)) { |
3649 | /* | |
3650 | * If we have already learned the MAC as a remote sticky | |
3651 | * MAC, | |
3652 | * this is a operator error and we must log a warning | |
3653 | */ | |
8f4b98ee | 3654 | if (CHECK_FLAG(mac->flags, ZEBRA_MAC_STICKY)) { |
421bb26a MK |
3655 | zlog_warn( |
3656 | "MAC %s is already learnt as a remote sticky mac behind VTEP %s VNI %d", | |
3657 | prefix_mac2str(macaddr, buf, | |
3658 | sizeof(buf)), | |
3659 | inet_ntoa(mac->fwd_info.r_vtep_ip), | |
3660 | zvni->vni); | |
8f4b98ee MK |
3661 | return 0; |
3662 | } | |
d62a17ae | 3663 | } |
3664 | } | |
3665 | ||
3666 | /* Locate VRF corresponding to interface. */ | |
3667 | zvrf = vrf_info_lookup(zvni->vxlan_if->vrf_id); | |
3668 | assert(zvrf); | |
3669 | ||
3670 | if (!mac) { | |
3671 | mac = zvni_mac_add(zvni, macaddr); | |
3672 | if (!mac) { | |
3673 | zlog_err("%u:Failed to add MAC %s intf %s(%u) VID %u", | |
3674 | ifp->vrf_id, | |
3675 | prefix_mac2str(macaddr, buf, sizeof(buf)), | |
3676 | ifp->name, ifp->ifindex, vid); | |
3677 | return -1; | |
3678 | } | |
3679 | } | |
3680 | ||
3681 | /* Set "local" forwarding info. */ | |
3682 | UNSET_FLAG(mac->flags, ZEBRA_MAC_REMOTE); | |
b6938a74 | 3683 | UNSET_FLAG(mac->flags, ZEBRA_MAC_AUTO); |
d62a17ae | 3684 | SET_FLAG(mac->flags, ZEBRA_MAC_LOCAL); |
b6938a74 | 3685 | memset(&mac->fwd_info, 0, sizeof(mac->fwd_info)); |
d62a17ae | 3686 | mac->fwd_info.local.ifindex = ifp->ifindex; |
3687 | mac->fwd_info.local.vid = vid; | |
3688 | ||
3689 | if (sticky) | |
3690 | SET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
3691 | else | |
3692 | UNSET_FLAG(mac->flags, ZEBRA_MAC_STICKY); | |
3693 | ||
3694 | /* Inform BGP if required. */ | |
b6938a74 MK |
3695 | if (add) { |
3696 | zvni_process_neigh_on_local_mac_add(zvrf, zvni, mac); | |
3697 | return zvni_mac_send_add_to_client(zvrf, zvni->vni, macaddr, | |
3698 | sticky); | |
3699 | } | |
d62a17ae | 3700 | |
3701 | return 0; | |
2232a77c | 3702 | } |
13d60d35 | 3703 | |
3704 | /* | |
3705 | * Handle message from client to delete a remote VTEP for a VNI. | |
3706 | */ | |
d62a17ae | 3707 | int zebra_vxlan_remote_vtep_del(struct zserv *client, int sock, u_short length, |
3708 | struct zebra_vrf *zvrf) | |
3709 | { | |
3710 | struct stream *s; | |
3711 | u_short l = 0; | |
3712 | vni_t vni; | |
3713 | struct in_addr vtep_ip; | |
3714 | zebra_vni_t *zvni; | |
3715 | zebra_vtep_t *zvtep; | |
b5ebdc9b | 3716 | struct interface *ifp; |
3717 | struct zebra_if *zif; | |
d62a17ae | 3718 | |
3719 | s = client->ibuf; | |
3720 | ||
3721 | while (l < length) { | |
3722 | /* Obtain each remote VTEP and process. */ | |
3723 | vni = (vni_t)stream_getl(s); | |
3724 | l += 4; | |
3725 | vtep_ip.s_addr = stream_get_ipv4(s); | |
3726 | l += IPV4_MAX_BYTELEN; | |
3727 | ||
3728 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3729 | zlog_debug("%u:Recv VTEP_DEL %s VNI %u from %s", | |
3730 | zvrf_id(zvrf), inet_ntoa(vtep_ip), vni, | |
3731 | zebra_route_string(client->proto)); | |
3732 | ||
3733 | /* Locate VNI hash entry - expected to exist. */ | |
3734 | zvni = zvni_lookup(zvrf, vni); | |
3735 | if (!zvni) { | |
3736 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3737 | zlog_debug( | |
3738 | "Failed to locate VNI hash upon remote VTEP DEL, " | |
3739 | "VRF %d VNI %u", | |
3740 | zvrf_id(zvrf), vni); | |
3741 | continue; | |
3742 | } | |
3743 | ||
b5ebdc9b | 3744 | ifp = zvni->vxlan_if; |
3745 | if (!ifp) { | |
b682f6de | 3746 | zlog_err("VNI %u hash %p doesn't have intf upon remote VTEP DEL", |
3747 | zvni->vni, zvni); | |
3748 | continue; | |
b5ebdc9b | 3749 | } |
3750 | zif = ifp->info; | |
3751 | ||
3752 | /* If down or not mapped to a bridge, we're done. */ | |
b682f6de | 3753 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) |
b5ebdc9b | 3754 | continue; |
3755 | ||
d62a17ae | 3756 | /* If the remote VTEP does not exist, there's nothing more to |
3757 | * do. | |
3758 | * Otherwise, uninstall any remote MACs pointing to this VTEP | |
3759 | * and | |
3760 | * then, the VTEP entry itself and remove it. | |
3761 | */ | |
3762 | zvtep = zvni_vtep_find(zvni, &vtep_ip); | |
3763 | if (!zvtep) | |
3764 | continue; | |
3765 | ||
3766 | zvni_neigh_del_from_vtep(zvni, 1, &vtep_ip); | |
3767 | zvni_mac_del_from_vtep(zvni, 1, &vtep_ip); | |
3768 | zvni_vtep_uninstall(zvni, &vtep_ip); | |
3769 | zvni_vtep_del(zvni, zvtep); | |
3770 | } | |
3771 | ||
3772 | return 0; | |
13d60d35 | 3773 | } |
3774 | ||
3775 | /* | |
3776 | * Handle message from client to add a remote VTEP for a VNI. | |
3777 | */ | |
d62a17ae | 3778 | int zebra_vxlan_remote_vtep_add(struct zserv *client, int sock, u_short length, |
3779 | struct zebra_vrf *zvrf) | |
3780 | { | |
3781 | struct stream *s; | |
3782 | u_short l = 0; | |
3783 | vni_t vni; | |
3784 | struct in_addr vtep_ip; | |
3785 | zebra_vni_t *zvni; | |
b5ebdc9b | 3786 | struct interface *ifp; |
3787 | struct zebra_if *zif; | |
d62a17ae | 3788 | |
3789 | assert(EVPN_ENABLED(zvrf)); | |
3790 | ||
3791 | s = client->ibuf; | |
3792 | ||
3793 | while (l < length) { | |
3794 | /* Obtain each remote VTEP and process. */ | |
3795 | vni = (vni_t)stream_getl(s); | |
3796 | l += 4; | |
3797 | vtep_ip.s_addr = stream_get_ipv4(s); | |
3798 | l += IPV4_MAX_BYTELEN; | |
3799 | ||
3800 | if (IS_ZEBRA_DEBUG_VXLAN) | |
3801 | zlog_debug("%u:Recv VTEP_ADD %s VNI %u from %s", | |
3802 | zvrf_id(zvrf), inet_ntoa(vtep_ip), vni, | |
3803 | zebra_route_string(client->proto)); | |
3804 | ||
3805 | /* Locate VNI hash entry - expected to exist. */ | |
3806 | zvni = zvni_lookup(zvrf, vni); | |
3807 | if (!zvni) { | |
3808 | zlog_err( | |
3809 | "Failed to locate VNI hash upon remote VTEP ADD, VRF %d VNI %u", | |
3810 | zvrf_id(zvrf), vni); | |
3811 | continue; | |
3812 | } | |
b5ebdc9b | 3813 | |
3814 | ifp = zvni->vxlan_if; | |
3815 | if (!ifp) { | |
d62a17ae | 3816 | zlog_err( |
3817 | "VNI %u hash %p doesn't have intf upon remote VTEP ADD", | |
3818 | zvni->vni, zvni); | |
3819 | continue; | |
3820 | } | |
3821 | ||
b5ebdc9b | 3822 | zif = ifp->info; |
d62a17ae | 3823 | |
b5ebdc9b | 3824 | /* If down or not mapped to a bridge, we're done. */ |
b682f6de | 3825 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) |
d62a17ae | 3826 | continue; |
3827 | ||
b682f6de | 3828 | /* If the remote VTEP already exists, |
3829 | there's nothing more to do. */ | |
b5ebdc9b | 3830 | if (zvni_vtep_find(zvni, &vtep_ip)) |
d62a17ae | 3831 | continue; |
3832 | ||
3833 | if (zvni_vtep_add(zvni, &vtep_ip) == NULL) { | |
3834 | zlog_err( | |
3835 | "Failed to add remote VTEP, VRF %d VNI %u zvni %p", | |
3836 | zvrf_id(zvrf), vni, zvni); | |
3837 | continue; | |
3838 | } | |
3839 | ||
3840 | zvni_vtep_install(zvni, &vtep_ip); | |
3841 | } | |
3842 | ||
3843 | return 0; | |
13d60d35 | 3844 | } |
3845 | ||
1a98c087 MK |
3846 | /* |
3847 | * Add/Del gateway macip to evpn | |
3848 | * g/w can be: | |
3849 | * 1. SVI interface on a vlan aware bridge | |
3850 | * 2. SVI interface on a vlan unaware bridge | |
3851 | * 3. vrr interface (MACVLAN) associated to a SVI | |
3852 | * We advertise macip routes for an interface if it is associated to VxLan vlan | |
3853 | */ | |
3854 | int zebra_vxlan_add_del_gw_macip(struct interface *ifp, struct prefix *p, | |
3855 | int add) | |
3856 | { | |
3857 | struct ipaddr ip; | |
3858 | struct ethaddr macaddr; | |
3859 | zebra_vni_t *zvni = NULL; | |
3860 | struct zebra_vrf *zvrf = NULL; | |
3861 | ||
3862 | memset(&ip, 0, sizeof(struct ipaddr)); | |
3863 | memset(&macaddr, 0, sizeof(struct ethaddr)); | |
3864 | ||
297a21b6 MK |
3865 | zvrf = vrf_info_lookup(ifp->vrf_id); |
3866 | if (!zvrf) | |
3867 | return -1; | |
3868 | ||
3869 | if (!EVPN_ENABLED(zvrf)) | |
3870 | return 0; | |
3871 | ||
1a98c087 MK |
3872 | if (IS_ZEBRA_IF_MACVLAN(ifp)) { |
3873 | struct interface *svi_if = | |
3874 | NULL; /* SVI corresponding to the MACVLAN */ | |
3875 | struct zebra_if *ifp_zif = | |
3876 | NULL; /* Zebra daemon specific info for MACVLAN */ | |
3877 | struct zebra_if *svi_if_zif = | |
3878 | NULL; /* Zebra daemon specific info for SVI*/ | |
3879 | ||
3880 | ifp_zif = ifp->info; | |
3881 | if (!ifp_zif) | |
3882 | return -1; | |
3883 | ||
3884 | svi_if = ifp_zif->link; | |
3885 | if (!svi_if) { | |
3886 | zlog_err("%u:MACVLAN %s(%u) without link information", | |
3887 | ifp->vrf_id, ifp->name, ifp->ifindex); | |
3888 | return -1; | |
3889 | } | |
3890 | ||
3891 | if (IS_ZEBRA_IF_VLAN(svi_if)) { | |
3892 | svi_if_zif = svi_if->info; | |
3893 | if (svi_if_zif) | |
3894 | zvni = zvni_map_svi(svi_if, svi_if_zif->link); | |
3895 | } else if (IS_ZEBRA_IF_BRIDGE(svi_if)) { | |
3896 | zvni = zvni_map_svi(svi_if, svi_if); | |
3897 | } | |
3898 | } else if (IS_ZEBRA_IF_VLAN(ifp)) { | |
3899 | struct zebra_if *svi_if_zif = | |
3900 | NULL; /* Zebra daemon specific info for SVI*/ | |
3901 | ||
3902 | svi_if_zif = ifp->info; | |
3903 | if (svi_if_zif) | |
3904 | zvni = zvni_map_svi(ifp, svi_if_zif->link); | |
3905 | } else if (IS_ZEBRA_IF_BRIDGE(ifp)) { | |
3906 | zvni = zvni_map_svi(ifp, ifp); | |
3907 | } | |
3908 | ||
3909 | if (!zvni) | |
3910 | return 0; | |
3911 | ||
3912 | if (!zvni->vxlan_if) { | |
3913 | zlog_err("VNI %u hash %p doesn't have intf upon MACVLAN up", | |
3914 | zvni->vni, zvni); | |
3915 | return -1; | |
3916 | } | |
3917 | ||
1a98c087 MK |
3918 | |
3919 | /* check if we are advertising gw macip routes */ | |
3920 | if (!advertise_gw_macip_enabled(zvrf, zvni)) | |
3921 | return 0; | |
3922 | ||
3923 | memcpy(&macaddr.octet, ifp->hw_addr, ETH_ALEN); | |
3924 | ||
3925 | if (p->family == AF_INET) { | |
3926 | ip.ipa_type = IPADDR_V4; | |
3927 | memcpy(&(ip.ipaddr_v4), &(p->u.prefix4), | |
3928 | sizeof(struct in_addr)); | |
3929 | } else if (p->family == AF_INET6) { | |
3930 | ip.ipa_type = IPADDR_V6; | |
3931 | memcpy(&(ip.ipaddr_v6), &(p->u.prefix6), | |
3932 | sizeof(struct in6_addr)); | |
3933 | } | |
3934 | ||
3935 | ||
3936 | if (add) | |
3937 | zvni_gw_macip_add(ifp, zvni, &macaddr, &ip); | |
3938 | else | |
3939 | zvni_gw_macip_del(ifp, zvni, &ip); | |
3940 | ||
3941 | return 0; | |
3942 | } | |
3943 | ||
2232a77c | 3944 | /* |
3945 | * Handle SVI interface going down. At this point, this is a NOP since | |
3946 | * the kernel deletes the neighbor entries on this SVI (if any). | |
3947 | */ | |
d62a17ae | 3948 | int zebra_vxlan_svi_down(struct interface *ifp, struct interface *link_if) |
2232a77c | 3949 | { |
d62a17ae | 3950 | return 0; |
2232a77c | 3951 | } |
3952 | ||
3953 | /* | |
3954 | * Handle SVI interface coming up. This may or may not be of interest, | |
3955 | * but if this is a SVI on a VxLAN bridge, we need to install any remote | |
3956 | * neighbor entries (which will be used for EVPN ARP suppression). | |
3957 | */ | |
d62a17ae | 3958 | int zebra_vxlan_svi_up(struct interface *ifp, struct interface *link_if) |
2232a77c | 3959 | { |
d62a17ae | 3960 | zebra_vni_t *zvni; |
3961 | struct neigh_walk_ctx n_wctx; | |
2232a77c | 3962 | |
d62a17ae | 3963 | zvni = zvni_map_svi(ifp, link_if); |
3964 | if (!zvni) | |
3965 | return 0; | |
2232a77c | 3966 | |
d62a17ae | 3967 | if (!zvni->vxlan_if) { |
3968 | zlog_err("VNI %u hash %p doesn't have intf upon SVI up", | |
3969 | zvni->vni, zvni); | |
3970 | return -1; | |
3971 | } | |
2232a77c | 3972 | |
d62a17ae | 3973 | if (IS_ZEBRA_DEBUG_VXLAN) |
3974 | zlog_debug("%u:SVI %s(%u) VNI %u is UP, installing neighbors", | |
3975 | ifp->vrf_id, ifp->name, ifp->ifindex, zvni->vni); | |
2232a77c | 3976 | |
d62a17ae | 3977 | /* Install any remote neighbors for this VNI. */ |
3978 | memset(&n_wctx, 0, sizeof(struct neigh_walk_ctx)); | |
3979 | n_wctx.zvni = zvni; | |
3980 | hash_iterate(zvni->neigh_table, zvni_install_neigh_hash, &n_wctx); | |
2232a77c | 3981 | |
d62a17ae | 3982 | return 0; |
2232a77c | 3983 | } |
3984 | ||
13d60d35 | 3985 | /* |
3986 | * Handle VxLAN interface down - update BGP if required, and do | |
3987 | * internal cleanup. | |
3988 | */ | |
d62a17ae | 3989 | int zebra_vxlan_if_down(struct interface *ifp) |
13d60d35 | 3990 | { |
d62a17ae | 3991 | struct zebra_if *zif; |
3992 | struct zebra_vrf *zvrf; | |
3993 | zebra_vni_t *zvni; | |
3994 | struct zebra_l2info_vxlan *vxl; | |
3995 | vni_t vni; | |
13d60d35 | 3996 | |
d62a17ae | 3997 | /* Locate VRF corresponding to interface. */ |
3998 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
3999 | assert(zvrf); | |
13d60d35 | 4000 | |
d62a17ae | 4001 | /* If EVPN is not enabled, nothing further to be done. */ |
4002 | if (!EVPN_ENABLED(zvrf)) | |
4003 | return 0; | |
13d60d35 | 4004 | |
d62a17ae | 4005 | zif = ifp->info; |
4006 | assert(zif); | |
4007 | vxl = &zif->l2info.vxl; | |
4008 | vni = vxl->vni; | |
13d60d35 | 4009 | |
d62a17ae | 4010 | if (IS_ZEBRA_DEBUG_VXLAN) |
4011 | zlog_debug("%u:Intf %s(%u) VNI %u is DOWN", ifp->vrf_id, | |
4012 | ifp->name, ifp->ifindex, vni); | |
13d60d35 | 4013 | |
d62a17ae | 4014 | /* Locate hash entry; it is expected to exist. */ |
4015 | zvni = zvni_lookup(zvrf, vni); | |
4016 | if (!zvni) { | |
4017 | zlog_err( | |
4018 | "Failed to locate VNI hash at DOWN, VRF %d IF %s(%u) VNI %u", | |
4019 | ifp->vrf_id, ifp->name, ifp->ifindex, vni); | |
4020 | return -1; | |
4021 | } | |
13d60d35 | 4022 | |
d62a17ae | 4023 | assert(zvni->vxlan_if == ifp); |
13d60d35 | 4024 | |
d62a17ae | 4025 | /* Delete this VNI from BGP. */ |
4026 | zvni_send_del_to_client(zvrf, zvni->vni); | |
13d60d35 | 4027 | |
d62a17ae | 4028 | /* Free up all neighbors and MACs, if any. */ |
4029 | zvni_neigh_del_all(zvrf, zvni, 1, 0, DEL_ALL_NEIGH); | |
4030 | zvni_mac_del_all(zvrf, zvni, 1, 0, DEL_ALL_MAC); | |
2232a77c | 4031 | |
d62a17ae | 4032 | /* Free up all remote VTEPs, if any. */ |
4033 | zvni_vtep_del_all(zvni, 1); | |
13d60d35 | 4034 | |
d62a17ae | 4035 | return 0; |
13d60d35 | 4036 | } |
4037 | ||
4038 | /* | |
4039 | * Handle VxLAN interface up - update BGP if required. | |
4040 | */ | |
d62a17ae | 4041 | int zebra_vxlan_if_up(struct interface *ifp) |
13d60d35 | 4042 | { |
d62a17ae | 4043 | struct zebra_if *zif; |
4044 | struct zebra_vrf *zvrf; | |
4045 | zebra_vni_t *zvni; | |
4046 | struct zebra_l2info_vxlan *vxl; | |
4047 | vni_t vni; | |
13d60d35 | 4048 | |
d62a17ae | 4049 | /* Locate VRF corresponding to interface. */ |
4050 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
4051 | assert(zvrf); | |
13d60d35 | 4052 | |
d62a17ae | 4053 | /* If EVPN is not enabled, nothing further to be done. */ |
4054 | if (!EVPN_ENABLED(zvrf)) | |
4055 | return 0; | |
13d60d35 | 4056 | |
d62a17ae | 4057 | zif = ifp->info; |
4058 | assert(zif); | |
4059 | vxl = &zif->l2info.vxl; | |
4060 | vni = vxl->vni; | |
13d60d35 | 4061 | |
d62a17ae | 4062 | if (IS_ZEBRA_DEBUG_VXLAN) |
4063 | zlog_debug("%u:Intf %s(%u) VNI %u is UP", ifp->vrf_id, | |
4064 | ifp->name, ifp->ifindex, vni); | |
13d60d35 | 4065 | |
d62a17ae | 4066 | /* Locate hash entry; it is expected to exist. */ |
4067 | zvni = zvni_lookup(zvrf, vni); | |
4068 | if (!zvni) { | |
4069 | zlog_err( | |
4070 | "Failed to locate VNI hash at UP, VRF %d IF %s(%u) VNI %u", | |
4071 | ifp->vrf_id, ifp->name, ifp->ifindex, vni); | |
4072 | return -1; | |
4073 | } | |
13d60d35 | 4074 | |
d62a17ae | 4075 | assert(zvni->vxlan_if == ifp); |
13d60d35 | 4076 | |
d62a17ae | 4077 | /* If part of a bridge, inform BGP about this VNI. */ |
4078 | /* Also, read and populate local MACs and neighbors. */ | |
4079 | if (zif->brslave_info.br_if) { | |
4080 | zvni_send_add_to_client(zvrf, zvni); | |
4081 | zvni_read_mac_neigh(zvrf, zvni, ifp); | |
4082 | } | |
13d60d35 | 4083 | |
d62a17ae | 4084 | return 0; |
13d60d35 | 4085 | } |
4086 | ||
4087 | /* | |
4088 | * Handle VxLAN interface delete. Locate and remove entry in hash table | |
4089 | * and update BGP, if required. | |
4090 | */ | |
d62a17ae | 4091 | int zebra_vxlan_if_del(struct interface *ifp) |
13d60d35 | 4092 | { |
d62a17ae | 4093 | struct zebra_if *zif; |
4094 | struct zebra_vrf *zvrf; | |
4095 | zebra_vni_t *zvni; | |
4096 | struct zebra_l2info_vxlan *vxl; | |
4097 | vni_t vni; | |
13d60d35 | 4098 | |
d62a17ae | 4099 | /* Locate VRF corresponding to interface. */ |
4100 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
4101 | assert(zvrf); | |
13d60d35 | 4102 | |
d62a17ae | 4103 | /* If EVPN is not enabled, nothing further to be done. */ |
4104 | if (!EVPN_ENABLED(zvrf)) | |
4105 | return 0; | |
13d60d35 | 4106 | |
d62a17ae | 4107 | zif = ifp->info; |
4108 | assert(zif); | |
4109 | vxl = &zif->l2info.vxl; | |
4110 | vni = vxl->vni; | |
13d60d35 | 4111 | |
d62a17ae | 4112 | if (IS_ZEBRA_DEBUG_VXLAN) |
4113 | zlog_debug("%u:Del VNI %u intf %s(%u)", ifp->vrf_id, vni, | |
4114 | ifp->name, ifp->ifindex); | |
13d60d35 | 4115 | |
d62a17ae | 4116 | /* Locate hash entry; it is expected to exist. */ |
4117 | zvni = zvni_lookup(zvrf, vni); | |
4118 | if (!zvni) { | |
4119 | zlog_err( | |
4120 | "Failed to locate VNI hash at del, VRF %d IF %s(%u) VNI %u", | |
4121 | ifp->vrf_id, ifp->name, ifp->ifindex, vni); | |
4122 | return 0; | |
4123 | } | |
13d60d35 | 4124 | |
d62a17ae | 4125 | /* Delete VNI from BGP. */ |
4126 | zvni_send_del_to_client(zvrf, zvni->vni); | |
13d60d35 | 4127 | |
d62a17ae | 4128 | /* Free up all neighbors and MAC, if any. */ |
4129 | zvni_neigh_del_all(zvrf, zvni, 0, 0, DEL_ALL_NEIGH); | |
4130 | zvni_mac_del_all(zvrf, zvni, 0, 0, DEL_ALL_MAC); | |
2232a77c | 4131 | |
d62a17ae | 4132 | /* Free up all remote VTEPs, if any. */ |
4133 | zvni_vtep_del_all(zvni, 0); | |
13d60d35 | 4134 | |
d62a17ae | 4135 | /* Delete the hash entry. */ |
4136 | if (zvni_del(zvrf, zvni)) { | |
4137 | zlog_err("Failed to del VNI hash %p, VRF %d IF %s(%u) VNI %u", | |
4138 | zvni, ifp->vrf_id, ifp->name, ifp->ifindex, zvni->vni); | |
4139 | return -1; | |
4140 | } | |
13d60d35 | 4141 | |
d62a17ae | 4142 | return 0; |
13d60d35 | 4143 | } |
4144 | ||
4145 | /* | |
4146 | * Handle VxLAN interface update - change to tunnel IP, master or VLAN. | |
4147 | */ | |
d62a17ae | 4148 | int zebra_vxlan_if_update(struct interface *ifp, u_int16_t chgflags) |
4149 | { | |
4150 | struct zebra_if *zif; | |
4151 | struct zebra_vrf *zvrf; | |
4152 | zebra_vni_t *zvni; | |
4153 | struct zebra_l2info_vxlan *vxl; | |
4154 | vni_t vni; | |
4155 | ||
4156 | /* Locate VRF corresponding to interface. */ | |
4157 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
4158 | assert(zvrf); | |
4159 | ||
4160 | /* If EVPN is not enabled, nothing further to be done. */ | |
4161 | if (!EVPN_ENABLED(zvrf)) | |
4162 | return 0; | |
4163 | ||
4164 | zif = ifp->info; | |
4165 | assert(zif); | |
4166 | vxl = &zif->l2info.vxl; | |
4167 | vni = vxl->vni; | |
4168 | ||
4169 | /* Update VNI hash. */ | |
4170 | zvni = zvni_lookup(zvrf, vni); | |
4171 | if (!zvni) { | |
4172 | zlog_err( | |
4173 | "Failed to find VNI hash on update, VRF %d IF %s(%u) VNI %u", | |
4174 | ifp->vrf_id, ifp->name, ifp->ifindex, vni); | |
4175 | return -1; | |
4176 | } | |
4177 | ||
4178 | if (IS_ZEBRA_DEBUG_VXLAN) | |
4179 | zlog_debug( | |
4180 | "%u:Update VNI %u intf %s(%u) VLAN %u local IP %s " | |
4181 | "master %u chg 0x%x", | |
4182 | ifp->vrf_id, vni, ifp->name, ifp->ifindex, | |
4183 | vxl->access_vlan, inet_ntoa(vxl->vtep_ip), | |
4184 | zif->brslave_info.bridge_ifindex, chgflags); | |
4185 | ||
af026ae4 | 4186 | /* Removed from bridge? Cleanup and return */ |
d62a17ae | 4187 | if ((chgflags & ZEBRA_VXLIF_MASTER_CHANGE) |
4188 | && (zif->brslave_info.bridge_ifindex == IFINDEX_INTERNAL)) { | |
4189 | /* Delete from client, remove all remote VTEPs */ | |
4190 | /* Also, free up all MACs and neighbors. */ | |
4191 | zvni_send_del_to_client(zvrf, zvni->vni); | |
4192 | zvni_neigh_del_all(zvrf, zvni, 1, 0, DEL_ALL_NEIGH); | |
4193 | zvni_mac_del_all(zvrf, zvni, 1, 0, DEL_ALL_MAC); | |
4194 | zvni_vtep_del_all(zvni, 1); | |
af026ae4 | 4195 | return 0; |
4196 | } | |
4197 | ||
4198 | /* Handle other changes. */ | |
4199 | if (chgflags & ZEBRA_VXLIF_VLAN_CHANGE) { | |
d62a17ae | 4200 | /* Remove all existing local neighbors and MACs for this VNI |
4201 | * (including from BGP) | |
4202 | */ | |
4203 | zvni_neigh_del_all(zvrf, zvni, 0, 1, DEL_LOCAL_MAC); | |
4204 | zvni_mac_del_all(zvrf, zvni, 0, 1, DEL_LOCAL_MAC); | |
4205 | } | |
4206 | ||
4207 | zvni->local_vtep_ip = vxl->vtep_ip; | |
4208 | zvni->vxlan_if = ifp; | |
4209 | ||
4210 | /* Take further actions needed. Note that if we are here, there is a | |
4211 | * change of interest. | |
4212 | */ | |
4213 | /* If down or not mapped to a bridge, we're done. */ | |
4214 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) | |
4215 | return 0; | |
4216 | ||
4217 | /* Inform BGP, if there is a change of interest. */ | |
4218 | if (chgflags | |
4219 | & (ZEBRA_VXLIF_MASTER_CHANGE | ZEBRA_VXLIF_LOCAL_IP_CHANGE)) | |
4220 | zvni_send_add_to_client(zvrf, zvni); | |
4221 | ||
4222 | /* If there is a valid new master or a VLAN mapping change, read and | |
4223 | * populate local MACs and neighbors. Also, reinstall any remote MACs | |
4224 | * and neighbors for this VNI (based on new VLAN). | |
4225 | */ | |
4226 | if (chgflags & ZEBRA_VXLIF_MASTER_CHANGE) | |
4227 | zvni_read_mac_neigh(zvrf, zvni, ifp); | |
4228 | else if (chgflags & ZEBRA_VXLIF_VLAN_CHANGE) { | |
4229 | struct mac_walk_ctx m_wctx; | |
4230 | struct neigh_walk_ctx n_wctx; | |
4231 | ||
4232 | zvni_read_mac_neigh(zvrf, zvni, ifp); | |
4233 | ||
4234 | memset(&m_wctx, 0, sizeof(struct mac_walk_ctx)); | |
4235 | m_wctx.zvni = zvni; | |
4236 | hash_iterate(zvni->mac_table, zvni_install_mac_hash, &m_wctx); | |
4237 | ||
4238 | memset(&n_wctx, 0, sizeof(struct neigh_walk_ctx)); | |
4239 | n_wctx.zvni = zvni; | |
4240 | hash_iterate(zvni->neigh_table, zvni_install_neigh_hash, | |
4241 | &n_wctx); | |
4242 | } | |
4243 | ||
4244 | return 0; | |
13d60d35 | 4245 | } |
4246 | ||
4247 | /* | |
4248 | * Handle VxLAN interface add. | |
4249 | */ | |
d62a17ae | 4250 | int zebra_vxlan_if_add(struct interface *ifp) |
13d60d35 | 4251 | { |
d62a17ae | 4252 | struct zebra_if *zif; |
4253 | struct zebra_vrf *zvrf; | |
4254 | zebra_vni_t *zvni; | |
4255 | struct zebra_l2info_vxlan *vxl; | |
4256 | vni_t vni; | |
13d60d35 | 4257 | |
d62a17ae | 4258 | /* Locate VRF corresponding to interface. */ |
4259 | zvrf = vrf_info_lookup(ifp->vrf_id); | |
4260 | assert(zvrf); | |
13d60d35 | 4261 | |
d62a17ae | 4262 | /* If EVPN is not enabled, nothing further to be done. */ |
4263 | if (!EVPN_ENABLED(zvrf)) | |
4264 | return 0; | |
13d60d35 | 4265 | |
d62a17ae | 4266 | zif = ifp->info; |
4267 | assert(zif); | |
4268 | vxl = &zif->l2info.vxl; | |
4269 | vni = vxl->vni; | |
13d60d35 | 4270 | |
d62a17ae | 4271 | if (IS_ZEBRA_DEBUG_VXLAN) |
4272 | zlog_debug( | |
4273 | "%u:Add VNI %u intf %s(%u) VLAN %u local IP %s master %u", | |
4274 | ifp->vrf_id, vni, ifp->name, ifp->ifindex, | |
4275 | vxl->access_vlan, inet_ntoa(vxl->vtep_ip), | |
4276 | zif->brslave_info.bridge_ifindex); | |
13d60d35 | 4277 | |
d62a17ae | 4278 | /* Create or update VNI hash. */ |
4279 | zvni = zvni_lookup(zvrf, vni); | |
4280 | if (!zvni) { | |
4281 | zvni = zvni_add(zvrf, vni); | |
4282 | if (!zvni) { | |
4283 | zlog_err( | |
4284 | "Failed to add VNI hash, VRF %d IF %s(%u) VNI %u", | |
4285 | ifp->vrf_id, ifp->name, ifp->ifindex, vni); | |
4286 | return -1; | |
4287 | } | |
4288 | } | |
13d60d35 | 4289 | |
d62a17ae | 4290 | zvni->local_vtep_ip = vxl->vtep_ip; |
4291 | zvni->vxlan_if = ifp; | |
13d60d35 | 4292 | |
d62a17ae | 4293 | /* If down or not mapped to a bridge, we're done. */ |
4294 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) | |
4295 | return 0; | |
13d60d35 | 4296 | |
d62a17ae | 4297 | /* Inform BGP */ |
4298 | zvni_send_add_to_client(zvrf, zvni); | |
13d60d35 | 4299 | |
d62a17ae | 4300 | /* Read and populate local MACs and neighbors */ |
4301 | zvni_read_mac_neigh(zvrf, zvni, ifp); | |
2232a77c | 4302 | |
d62a17ae | 4303 | return 0; |
13d60d35 | 4304 | } |
4305 | ||
1a98c087 MK |
4306 | /* |
4307 | * Handle message from client to enable/disable advertisement of g/w macip | |
4308 | * routes | |
4309 | */ | |
4310 | int zebra_vxlan_advertise_gw_macip(struct zserv *client, int sock, | |
4311 | u_short length, struct zebra_vrf *zvrf) | |
4312 | { | |
4313 | struct stream *s; | |
4314 | int advertise; | |
4315 | vni_t vni = 0; | |
4316 | zebra_vni_t *zvni = NULL; | |
b5ebdc9b | 4317 | struct interface *ifp = NULL; |
1a98c087 MK |
4318 | |
4319 | s = client->ibuf; | |
4320 | advertise = stream_getc(s); | |
4321 | vni = stream_get3(s); | |
4322 | ||
4323 | if (!vni) { | |
4324 | if (IS_ZEBRA_DEBUG_VXLAN) | |
4325 | zlog_debug("%u:EVPN gateway macip Adv %s, currently %s", | |
4326 | zvrf_id(zvrf), | |
4327 | advertise ? "enabled" : "disabled", | |
4328 | advertise_gw_macip_enabled(zvrf, NULL) | |
4329 | ? "enabled" | |
4330 | : "disabled"); | |
4331 | ||
4332 | if (zvrf->advertise_gw_macip == advertise) | |
4333 | return 0; | |
4334 | ||
4335 | zvrf->advertise_gw_macip = advertise; | |
4336 | ||
4337 | if (advertise_gw_macip_enabled(zvrf, zvni)) | |
4338 | hash_iterate(zvrf->vni_table, | |
4339 | zvni_gw_macip_add_for_vni_hash, zvrf); | |
4340 | else | |
4341 | hash_iterate(zvrf->vni_table, | |
4342 | zvni_gw_macip_del_for_vni_hash, zvrf); | |
4343 | ||
4344 | } else { | |
4345 | struct zebra_if *zif = NULL; | |
4346 | struct zebra_l2info_vxlan zl2_info; | |
4347 | struct interface *vlan_if = NULL; | |
4348 | struct interface *vrr_if = NULL; | |
4349 | ||
4350 | if (IS_ZEBRA_DEBUG_VXLAN) | |
4351 | zlog_debug( | |
4352 | "%u:EVPN gateway macip Adv %s on VNI %d , currently %s", | |
4353 | zvrf_id(zvrf), | |
4354 | advertise ? "enabled" : "disabled", vni, | |
4355 | advertise_gw_macip_enabled(zvrf, zvni) | |
4356 | ? "enabled" | |
4357 | : "disabled"); | |
4358 | ||
4359 | zvni = zvni_lookup(zvrf, vni); | |
4360 | if (!zvni) | |
4361 | return 0; | |
4362 | ||
4363 | if (zvni->advertise_gw_macip == advertise) | |
4364 | return 0; | |
4365 | ||
4366 | zvni->advertise_gw_macip = advertise; | |
4367 | ||
b5ebdc9b | 4368 | ifp = zvni->vxlan_if; |
4369 | if (!ifp) | |
4370 | return 0; | |
4371 | ||
4372 | zif = ifp->info; | |
4373 | ||
4374 | /* If down or not mapped to a bridge, we're done. */ | |
b682f6de | 4375 | if (!if_is_operative(ifp) || !zif->brslave_info.br_if) |
b5ebdc9b | 4376 | return 0; |
4377 | ||
1a98c087 MK |
4378 | zl2_info = zif->l2info.vxl; |
4379 | ||
4380 | vlan_if = zvni_map_to_svi(zvrf, zl2_info.access_vlan, | |
4381 | zif->brslave_info.br_if); | |
4382 | if (!vlan_if) | |
4383 | return 0; | |
4384 | ||
4385 | if (advertise_gw_macip_enabled(zvrf, zvni)) { | |
4386 | /* Add primary SVI MAC-IP */ | |
4387 | zvni_add_macip_for_intf(vlan_if, zvni); | |
4388 | ||
4389 | /* Add VRR MAC-IP - if any*/ | |
4390 | vrr_if = zebra_get_vrr_intf_for_svi(vlan_if); | |
4391 | if (vrr_if) | |
4392 | zvni_add_macip_for_intf(vrr_if, zvni); | |
4393 | } else { | |
4394 | /* Del primary MAC-IP */ | |
4395 | zvni_del_macip_for_intf(vlan_if, zvni); | |
4396 | ||
4397 | /* Del VRR MAC-IP - if any*/ | |
4398 | vrr_if = zebra_get_vrr_intf_for_svi(vlan_if); | |
4399 | if (vrr_if) | |
4400 | zvni_del_macip_for_intf(vrr_if, zvni); | |
4401 | } | |
4402 | } | |
4403 | ||
4404 | return 0; | |
4405 | } | |
4406 | ||
4407 | ||
13d60d35 | 4408 | /* |
4409 | * Handle message from client to learn (or stop learning) about VNIs and MACs. | |
4410 | * When enabled, the VNI hash table will be built and MAC FDB table read; | |
4411 | * when disabled, the entries should be deleted and remote VTEPs and MACs | |
4412 | * uninstalled from the kernel. | |
4413 | */ | |
d62a17ae | 4414 | int zebra_vxlan_advertise_all_vni(struct zserv *client, int sock, |
4415 | u_short length, struct zebra_vrf *zvrf) | |
13d60d35 | 4416 | { |
d62a17ae | 4417 | struct stream *s; |
4418 | int advertise; | |
13d60d35 | 4419 | |
d62a17ae | 4420 | s = client->ibuf; |
4421 | advertise = stream_getc(s); | |
13d60d35 | 4422 | |
d62a17ae | 4423 | if (IS_ZEBRA_DEBUG_VXLAN) |
4424 | zlog_debug("%u:EVPN VNI Adv %s, currently %s", zvrf_id(zvrf), | |
4425 | advertise ? "enabled" : "disabled", | |
4426 | EVPN_ENABLED(zvrf) ? "enabled" : "disabled"); | |
13d60d35 | 4427 | |
d62a17ae | 4428 | if (zvrf->advertise_all_vni == advertise) |
4429 | return 0; | |
13d60d35 | 4430 | |
d62a17ae | 4431 | zvrf->advertise_all_vni = advertise; |
4432 | if (EVPN_ENABLED(zvrf)) { | |
4433 | /* Build VNI hash table and inform BGP. */ | |
4434 | zvni_build_hash_table(zvrf); | |
2232a77c | 4435 | |
1a98c087 MK |
4436 | /* Add all SVI (L3 GW) MACs to BGP*/ |
4437 | hash_iterate(zvrf->vni_table, zvni_gw_macip_add_for_vni_hash, | |
4438 | zvrf); | |
4439 | ||
d62a17ae | 4440 | /* Read the MAC FDB */ |
4441 | macfdb_read(zvrf->zns); | |
2232a77c | 4442 | |
d62a17ae | 4443 | /* Read neighbors */ |
4444 | neigh_read(zvrf->zns); | |
4445 | } else { | |
4446 | /* Cleanup VTEPs for all VNIs - uninstall from | |
4447 | * kernel and free entries. | |
4448 | */ | |
4449 | hash_iterate(zvrf->vni_table, zvni_cleanup_all, zvrf); | |
4450 | } | |
13d60d35 | 4451 | |
d62a17ae | 4452 | return 0; |
13d60d35 | 4453 | } |
4454 | ||
4455 | /* | |
4456 | * Allocate VNI hash table for this VRF and do other initialization. | |
4457 | * NOTE: Currently supported only for default VRF. | |
4458 | */ | |
d62a17ae | 4459 | void zebra_vxlan_init_tables(struct zebra_vrf *zvrf) |
13d60d35 | 4460 | { |
d62a17ae | 4461 | if (!zvrf) |
4462 | return; | |
4463 | zvrf->vni_table = hash_create(vni_hash_keymake, vni_hash_cmp, | |
4464 | "Zebra VRF VNI Table"); | |
13d60d35 | 4465 | } |
4466 | ||
4467 | /* Close all VNI handling */ | |
d62a17ae | 4468 | void zebra_vxlan_close_tables(struct zebra_vrf *zvrf) |
13d60d35 | 4469 | { |
d62a17ae | 4470 | hash_iterate(zvrf->vni_table, zvni_cleanup_all, zvrf); |
9b67b514 | 4471 | hash_free(zvrf->vni_table); |
13d60d35 | 4472 | } |