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