]>
Commit | Line | Data |
---|---|---|
acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
7c551956 DS |
2 | /* |
3 | * Copyright (C) 2016 CumulusNetworks | |
4 | * Donald Sharp | |
5 | * | |
6 | * This file is part of Quagga | |
7c551956 DS |
7 | */ |
8 | #include <zebra.h> | |
9 | ||
62d89c64 IR |
10 | /* for basename */ |
11 | #include <libgen.h> | |
12 | ||
7c551956 DS |
13 | #include "log.h" |
14 | #include "linklist.h" | |
f30c50b9 | 15 | #include "command.h" |
4a1ab8e4 | 16 | #include "memory.h" |
05737783 | 17 | #include "srcdest_table.h" |
78dd30b2 | 18 | #include "vrf.h" |
82f97584 | 19 | #include "vty.h" |
78dd30b2 | 20 | |
89272910 | 21 | #include "zebra/zebra_router.h" |
df9c8c57 | 22 | #include "zebra/rtadv.h" |
7c551956 | 23 | #include "zebra/debug.h" |
bf094f69 | 24 | #include "zebra/zapi_msg.h" |
7c551956 DS |
25 | #include "zebra/rib.h" |
26 | #include "zebra/zebra_vrf.h" | |
5a8dfcd8 | 27 | #include "zebra/zebra_rnh.h" |
7c551956 | 28 | #include "zebra/router-id.h" |
5a8dfcd8 | 29 | #include "zebra/interface.h" |
7758e3f3 | 30 | #include "zebra/zebra_mpls.h" |
13d60d35 | 31 | #include "zebra/zebra_vxlan.h" |
3bc34908 | 32 | #include "zebra/zebra_netns_notify.h" |
7cf16e19 | 33 | #include "zebra/zebra_routemap.h" |
37cb0475 | 34 | #include "zebra/zebra_vrf_clippy.c" |
42d4b30e | 35 | #include "zebra/table_manager.h" |
7c551956 | 36 | |
9d97533e | 37 | static void zebra_vrf_table_create(struct zebra_vrf *zvrf, afi_t afi, |
38 | safi_t safi); | |
39 | static void zebra_rnhtable_node_cleanup(struct route_table *table, | |
40 | struct route_node *node); | |
41 | ||
bf8d3d6a DL |
42 | DEFINE_MTYPE_STATIC(ZEBRA, ZEBRA_VRF, "ZEBRA VRF"); |
43 | DEFINE_MTYPE_STATIC(ZEBRA, OTHER_TABLE, "Other Table"); | |
d8612e65 | 44 | |
7c551956 | 45 | /* VRF information update. */ |
d62a17ae | 46 | static void zebra_vrf_add_update(struct zebra_vrf *zvrf) |
7c551956 | 47 | { |
d62a17ae | 48 | struct listnode *node, *nnode; |
49 | struct zserv *client; | |
7c551956 | 50 | |
d62a17ae | 51 | if (IS_ZEBRA_DEBUG_EVENT) |
52 | zlog_debug("MESSAGE: ZEBRA_VRF_ADD %s", zvrf_name(zvrf)); | |
7c551956 | 53 | |
17da84a4 KS |
54 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
55 | /* Do not send unsolicited messages to synchronous clients. */ | |
56 | if (client->synchronous) | |
57 | continue; | |
58 | ||
d62a17ae | 59 | zsend_vrf_add(client, zvrf); |
17da84a4 | 60 | } |
7c551956 DS |
61 | } |
62 | ||
d62a17ae | 63 | static void zebra_vrf_delete_update(struct zebra_vrf *zvrf) |
7c551956 | 64 | { |
d62a17ae | 65 | struct listnode *node, *nnode; |
66 | struct zserv *client; | |
7c551956 | 67 | |
d62a17ae | 68 | if (IS_ZEBRA_DEBUG_EVENT) |
69 | zlog_debug("MESSAGE: ZEBRA_VRF_DELETE %s", zvrf_name(zvrf)); | |
7c551956 | 70 | |
17da84a4 KS |
71 | for (ALL_LIST_ELEMENTS(zrouter.client_list, node, nnode, client)) { |
72 | /* Do not send unsolicited messages to synchronous clients. */ | |
73 | if (client->synchronous) | |
74 | continue; | |
75 | ||
d62a17ae | 76 | zsend_vrf_delete(client, zvrf); |
17da84a4 | 77 | } |
7c551956 DS |
78 | } |
79 | ||
d62a17ae | 80 | void zebra_vrf_update_all(struct zserv *client) |
7c551956 | 81 | { |
d62a17ae | 82 | struct vrf *vrf; |
7c551956 | 83 | |
a2addae8 | 84 | RB_FOREACH (vrf, vrf_id_head, &vrfs_by_id) { |
4691b65a | 85 | if (vrf->vrf_id != VRF_UNKNOWN) |
d62a17ae | 86 | zsend_vrf_add(client, vrf_info_lookup(vrf->vrf_id)); |
87 | } | |
7c551956 DS |
88 | } |
89 | ||
90 | /* Callback upon creating a new VRF. */ | |
d62a17ae | 91 | static int zebra_vrf_new(struct vrf *vrf) |
7c551956 | 92 | { |
d62a17ae | 93 | struct zebra_vrf *zvrf; |
7c551956 | 94 | |
d62a17ae | 95 | if (IS_ZEBRA_DEBUG_EVENT) |
14a4d9d0 | 96 | zlog_debug("VRF %s created, id %u", vrf->name, vrf->vrf_id); |
7c551956 | 97 | |
ec64a634 | 98 | zvrf = zebra_vrf_alloc(vrf); |
91b1421e PG |
99 | if (!vrf_is_backend_netns()) |
100 | zvrf->zns = zebra_ns_lookup(NS_DEFAULT); | |
d8612e65 DS |
101 | |
102 | otable_init(&zvrf->other_tables); | |
103 | ||
fbb65ff5 | 104 | router_id_init(zvrf); |
42d4b30e PG |
105 | |
106 | /* Initiate Table Manager per ZNS */ | |
107 | table_manager_enable(zvrf); | |
108 | ||
d62a17ae | 109 | return 0; |
7c551956 DS |
110 | } |
111 | ||
112 | /* Callback upon enabling a VRF. */ | |
d62a17ae | 113 | static int zebra_vrf_enable(struct vrf *vrf) |
7c551956 | 114 | { |
d62a17ae | 115 | struct zebra_vrf *zvrf = vrf->info; |
9d97533e | 116 | struct route_table *table; |
d62a17ae | 117 | afi_t afi; |
118 | safi_t safi; | |
119 | ||
120 | assert(zvrf); | |
84915b0a | 121 | if (IS_ZEBRA_DEBUG_EVENT) |
996c9314 LB |
122 | zlog_debug("VRF %s id %u is now active", zvrf_name(zvrf), |
123 | zvrf_id(zvrf)); | |
d62a17ae | 124 | |
fbb65ff5 PG |
125 | if (vrf_is_backend_netns()) |
126 | zvrf->zns = zebra_ns_lookup((ns_id_t)vrf->vrf_id); | |
127 | else | |
128 | zvrf->zns = zebra_ns_lookup(NS_DEFAULT); | |
7ca9c407 | 129 | |
7c2ddfb9 | 130 | rtadv_vrf_init(zvrf); |
df9c8c57 | 131 | |
84915b0a | 132 | /* Inform clients that the VRF is now active. This is an |
133 | * add for the clients. | |
134 | */ | |
d62a17ae | 135 | |
8288a24f | 136 | zebra_vrf_add_update(zvrf); |
9d97533e | 137 | /* Allocate tables */ |
138 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) { | |
139 | for (safi = SAFI_UNICAST; safi <= SAFI_MULTICAST; safi++) | |
140 | zebra_vrf_table_create(zvrf, afi, safi); | |
141 | ||
142 | table = route_table_init(); | |
143 | table->cleanup = zebra_rnhtable_node_cleanup; | |
144 | zvrf->rnh_table[afi] = table; | |
145 | ||
146 | table = route_table_init(); | |
147 | table->cleanup = zebra_rnhtable_node_cleanup; | |
a4598b97 | 148 | zvrf->rnh_table_multicast[afi] = table; |
9d97533e | 149 | } |
150 | ||
84915b0a | 151 | /* Kick off any VxLAN-EVPN processing. */ |
152 | zebra_vxlan_vrf_enable(zvrf); | |
153 | ||
d62a17ae | 154 | return 0; |
7c551956 DS |
155 | } |
156 | ||
157 | /* Callback upon disabling a VRF. */ | |
d62a17ae | 158 | static int zebra_vrf_disable(struct vrf *vrf) |
7c551956 | 159 | { |
d62a17ae | 160 | struct zebra_vrf *zvrf = vrf->info; |
9d97533e | 161 | struct interface *ifp; |
d62a17ae | 162 | afi_t afi; |
163 | safi_t safi; | |
164 | ||
84915b0a | 165 | assert(zvrf); |
166 | if (IS_ZEBRA_DEBUG_EVENT) | |
996c9314 LB |
167 | zlog_debug("VRF %s id %u is now inactive", zvrf_name(zvrf), |
168 | zvrf_id(zvrf)); | |
d62a17ae | 169 | |
84915b0a | 170 | /* Stop any VxLAN-EVPN processing. */ |
171 | zebra_vxlan_vrf_disable(zvrf); | |
d62a17ae | 172 | |
aab5893a | 173 | rtadv_vrf_terminate(zvrf); |
df9c8c57 | 174 | |
84915b0a | 175 | /* Inform clients that the VRF is now inactive. This is a |
176 | * delete for the clients. | |
177 | */ | |
d62a17ae | 178 | zebra_vrf_delete_update(zvrf); |
179 | ||
9d97533e | 180 | /* If asked to retain routes, there's nothing more to do. */ |
181 | if (CHECK_FLAG(zvrf->flags, ZEBRA_VRF_RETAIN)) | |
182 | return 0; | |
183 | ||
184 | /* Remove all routes. */ | |
185 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) { | |
41dc8c14 DS |
186 | route_table_finish(zvrf->rnh_table[afi]); |
187 | zvrf->rnh_table[afi] = NULL; | |
a4598b97 DS |
188 | route_table_finish(zvrf->rnh_table_multicast[afi]); |
189 | zvrf->rnh_table_multicast[afi] = NULL; | |
41dc8c14 | 190 | |
9d97533e | 191 | for (safi = SAFI_UNICAST; safi <= SAFI_MULTICAST; safi++) |
192 | rib_close_table(zvrf->table[afi][safi]); | |
9d97533e | 193 | } |
194 | ||
195 | /* Cleanup Vxlan, MPLS and PW tables. */ | |
196 | zebra_vxlan_cleanup_tables(zvrf); | |
197 | zebra_mpls_cleanup_tables(zvrf); | |
198 | zebra_pw_exit(zvrf); | |
199 | ||
996c9314 LB |
200 | /* Remove link-local IPv4 addresses created for BGP unnumbered peering. |
201 | */ | |
9d97533e | 202 | FOR_ALL_INTERFACES (vrf, ifp) |
203 | if_nbr_ipv6ll_to_ipv4ll_neigh_del_all(ifp); | |
204 | ||
205 | /* clean-up work queues */ | |
a310ebc1 | 206 | meta_queue_free(zrouter.mq, zvrf); |
7c551956 | 207 | |
9d97533e | 208 | /* Cleanup (free) routing tables and NHT tables. */ |
209 | for (afi = AFI_IP; afi <= AFI_IP6; afi++) { | |
89272910 DS |
210 | /* |
211 | * Set the table pointer to NULL as that | |
212 | * we no-longer need a copy of it, nor do we | |
213 | * own this data, the zebra_router structure | |
214 | * owns these tables. Once we've cleaned up the | |
215 | * table, see rib_close_table above | |
216 | * we no-longer need this pointer. | |
217 | */ | |
bd4fb615 DS |
218 | for (safi = SAFI_UNICAST; safi <= SAFI_MULTICAST; safi++) { |
219 | zebra_router_release_table(zvrf, zvrf->table_id, afi, | |
220 | safi); | |
9d97533e | 221 | zvrf->table[afi][safi] = NULL; |
bd4fb615 | 222 | } |
5a8dfcd8 RW |
223 | } |
224 | ||
d62a17ae | 225 | return 0; |
7c551956 DS |
226 | } |
227 | ||
d62a17ae | 228 | static int zebra_vrf_delete(struct vrf *vrf) |
7c551956 | 229 | { |
d62a17ae | 230 | struct zebra_vrf *zvrf = vrf->info; |
d8612e65 | 231 | struct other_route_table *otable; |
d62a17ae | 232 | |
233 | assert(zvrf); | |
84915b0a | 234 | if (IS_ZEBRA_DEBUG_EVENT) |
996c9314 LB |
235 | zlog_debug("VRF %s id %u deleted", zvrf_name(zvrf), |
236 | zvrf_id(zvrf)); | |
5a8dfcd8 | 237 | |
49df0815 IR |
238 | table_manager_disable(zvrf); |
239 | ||
d62a17ae | 240 | /* clean-up work queues */ |
a310ebc1 | 241 | meta_queue_free(zrouter.mq, zvrf); |
5a8dfcd8 | 242 | |
84915b0a | 243 | /* Free Vxlan and MPLS. */ |
244 | zebra_vxlan_close_tables(zvrf); | |
245 | zebra_mpls_close_tables(zvrf); | |
246 | ||
d8612e65 DS |
247 | otable = otable_pop(&zvrf->other_tables); |
248 | while (otable) { | |
249 | zebra_router_release_table(zvrf, otable->table_id, | |
250 | otable->afi, otable->safi); | |
251 | XFREE(MTYPE_OTHER_TABLE, otable); | |
252 | ||
253 | otable = otable_pop(&zvrf->other_tables); | |
254 | } | |
255 | ||
84915b0a | 256 | /* Cleanup EVPN states for vrf */ |
b7cfce93 | 257 | zebra_vxlan_vrf_delete(zvrf); |
cda0f501 | 258 | zebra_routemap_vrf_delete(zvrf); |
b7cfce93 | 259 | |
d62a17ae | 260 | list_delete_all_node(zvrf->rid_all_sorted_list); |
261 | list_delete_all_node(zvrf->rid_lo_sorted_list); | |
d8612e65 | 262 | |
cdc09a4b MS |
263 | list_delete_all_node(zvrf->rid6_all_sorted_list); |
264 | list_delete_all_node(zvrf->rid6_lo_sorted_list); | |
265 | ||
d8612e65 | 266 | otable_fini(&zvrf->other_tables); |
d62a17ae | 267 | XFREE(MTYPE_ZEBRA_VRF, zvrf); |
268 | vrf->info = NULL; | |
5a8dfcd8 | 269 | |
d62a17ae | 270 | return 0; |
7c551956 DS |
271 | } |
272 | ||
273 | /* Lookup the routing table in a VRF based on both VRF-Id and table-id. | |
e9748a89 PG |
274 | * NOTE: Table-id is relevant on two modes: |
275 | * - case VRF backend is default : on default VRF only | |
276 | * - case VRF backend is netns : on all VRFs | |
7c551956 | 277 | */ |
c7c0b007 SW |
278 | struct route_table *zebra_vrf_lookup_table_with_table_id(afi_t afi, safi_t safi, |
279 | vrf_id_t vrf_id, | |
280 | uint32_t table_id) | |
7c551956 | 281 | { |
8ab39b7f | 282 | struct zebra_vrf *zvrf = vrf_info_lookup(vrf_id); |
d8612e65 | 283 | struct other_route_table ort, *otable; |
8ab39b7f DS |
284 | |
285 | if (!zvrf) | |
286 | return NULL; | |
d62a17ae | 287 | |
288 | if (afi >= AFI_MAX || safi >= SAFI_MAX) | |
289 | return NULL; | |
290 | ||
8ab39b7f DS |
291 | if (table_id == zvrf->table_id) |
292 | return zebra_vrf_table(afi, safi, vrf_id); | |
d62a17ae | 293 | |
d8612e65 DS |
294 | ort.afi = afi; |
295 | ort.safi = safi; | |
296 | ort.table_id = table_id; | |
297 | otable = otable_find(&zvrf->other_tables, &ort); | |
c7c0b007 | 298 | |
d8612e65 DS |
299 | if (otable) |
300 | return otable->table; | |
301 | ||
c7c0b007 SW |
302 | return NULL; |
303 | } | |
304 | ||
305 | struct route_table *zebra_vrf_get_table_with_table_id(afi_t afi, safi_t safi, | |
306 | vrf_id_t vrf_id, | |
307 | uint32_t table_id) | |
308 | { | |
309 | struct zebra_vrf *zvrf = vrf_info_lookup(vrf_id); | |
310 | struct other_route_table *otable; | |
311 | struct route_table *table; | |
312 | ||
313 | table = zebra_vrf_lookup_table_with_table_id(afi, safi, vrf_id, | |
314 | table_id); | |
315 | ||
316 | if (table) | |
317 | goto done; | |
318 | ||
319 | /* Create it as an `other` table */ | |
d8612e65 DS |
320 | table = zebra_router_get_table(zvrf, table_id, afi, safi); |
321 | ||
322 | otable = XCALLOC(MTYPE_OTHER_TABLE, sizeof(*otable)); | |
323 | otable->afi = afi; | |
324 | otable->safi = safi; | |
325 | otable->table_id = table_id; | |
326 | otable->table = table; | |
327 | otable_add(&zvrf->other_tables, otable); | |
d62a17ae | 328 | |
c7c0b007 | 329 | done: |
d62a17ae | 330 | return table; |
7c551956 DS |
331 | } |
332 | ||
d62a17ae | 333 | static void zebra_rnhtable_node_cleanup(struct route_table *table, |
334 | struct route_node *node) | |
5a8dfcd8 | 335 | { |
d62a17ae | 336 | if (node->info) |
337 | zebra_free_rnh(node->info); | |
5a8dfcd8 RW |
338 | } |
339 | ||
7c551956 DS |
340 | /* |
341 | * Create a routing table for the specific AFI/SAFI in the given VRF. | |
342 | */ | |
d62a17ae | 343 | static void zebra_vrf_table_create(struct zebra_vrf *zvrf, afi_t afi, |
344 | safi_t safi) | |
7c551956 | 345 | { |
c86ba6c2 DS |
346 | struct route_node *rn; |
347 | struct prefix p; | |
348 | ||
d62a17ae | 349 | assert(!zvrf->table[afi][safi]); |
350 | ||
ea66cec4 DS |
351 | zvrf->table[afi][safi] = |
352 | zebra_router_get_table(zvrf, zvrf->table_id, afi, safi); | |
c86ba6c2 DS |
353 | |
354 | memset(&p, 0, sizeof(p)); | |
355 | p.family = afi2family(afi); | |
356 | ||
357 | rn = srcdest_rnode_get(zvrf->table[afi][safi], &p, NULL); | |
358 | zebra_rib_create_dest(rn); | |
7c551956 DS |
359 | } |
360 | ||
361 | /* Allocate new zebra VRF. */ | |
ec64a634 | 362 | struct zebra_vrf *zebra_vrf_alloc(struct vrf *vrf) |
7c551956 | 363 | { |
d62a17ae | 364 | struct zebra_vrf *zvrf; |
d62a17ae | 365 | |
366 | zvrf = XCALLOC(MTYPE_ZEBRA_VRF, sizeof(struct zebra_vrf)); | |
367 | ||
ec64a634 DS |
368 | zvrf->vrf = vrf; |
369 | vrf->info = zvrf; | |
370 | ||
d62a17ae | 371 | zebra_vxlan_init_tables(zvrf); |
372 | zebra_mpls_init_tables(zvrf); | |
6833ae01 | 373 | zebra_pw_init(zvrf); |
e9748a89 PG |
374 | zvrf->table_id = RT_TABLE_MAIN; |
375 | /* by default table ID is default one */ | |
d62a17ae | 376 | return zvrf; |
7c551956 DS |
377 | } |
378 | ||
379 | /* Lookup VRF by identifier. */ | |
d62a17ae | 380 | struct zebra_vrf *zebra_vrf_lookup_by_id(vrf_id_t vrf_id) |
7c551956 | 381 | { |
d62a17ae | 382 | return vrf_info_lookup(vrf_id); |
7c551956 DS |
383 | } |
384 | ||
51bdc5f8 | 385 | /* Lookup VRF by name. */ |
d62a17ae | 386 | struct zebra_vrf *zebra_vrf_lookup_by_name(const char *name) |
871d39b3 | 387 | { |
d62a17ae | 388 | struct vrf *vrf; |
871d39b3 | 389 | |
d62a17ae | 390 | if (!name) |
391 | name = VRF_DEFAULT_NAME; | |
a3d21ef3 | 392 | |
d62a17ae | 393 | vrf = vrf_lookup_by_name(name); |
394 | if (vrf) | |
395 | return ((struct zebra_vrf *)vrf->info); | |
51bdc5f8 | 396 | |
d62a17ae | 397 | return NULL; |
871d39b3 DS |
398 | } |
399 | ||
7c551956 | 400 | /* Lookup the routing table in an enabled VRF. */ |
d62a17ae | 401 | struct route_table *zebra_vrf_table(afi_t afi, safi_t safi, vrf_id_t vrf_id) |
7c551956 | 402 | { |
d62a17ae | 403 | struct zebra_vrf *zvrf = vrf_info_lookup(vrf_id); |
7c551956 | 404 | |
d62a17ae | 405 | if (!zvrf) |
406 | return NULL; | |
7c551956 | 407 | |
d62a17ae | 408 | if (afi >= AFI_MAX || safi >= SAFI_MAX) |
409 | return NULL; | |
7c551956 | 410 | |
d62a17ae | 411 | return zvrf->table[afi][safi]; |
7c551956 DS |
412 | } |
413 | ||
d62a17ae | 414 | static int vrf_config_write(struct vty *vty) |
f30c50b9 | 415 | { |
d62a17ae | 416 | struct vrf *vrf; |
417 | struct zebra_vrf *zvrf; | |
418 | ||
a2addae8 | 419 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) { |
d62a17ae | 420 | zvrf = vrf->info; |
1e9f448f DS |
421 | |
422 | if (!zvrf) | |
423 | continue; | |
424 | ||
a5654735 MK |
425 | if (zvrf_id(zvrf) == VRF_DEFAULT) { |
426 | if (zvrf->l3vni) | |
8d0f01f1 CS |
427 | vty_out(vty, "vni %u%s\n", zvrf->l3vni, |
428 | is_l3vni_for_prefix_routes_only( | |
429 | zvrf->l3vni) | |
430 | ? " prefix-routes-only" | |
431 | : ""); | |
5a0bdc78 PG |
432 | if (zvrf->zebra_rnh_ip_default_route) |
433 | vty_out(vty, "ip nht resolve-via-default\n"); | |
434 | ||
435 | if (zvrf->zebra_rnh_ipv6_default_route) | |
436 | vty_out(vty, "ipv6 nht resolve-via-default\n"); | |
42d4b30e PG |
437 | |
438 | if (zvrf->tbl_mgr | |
439 | && (zvrf->tbl_mgr->start || zvrf->tbl_mgr->end)) | |
440 | vty_out(vty, "ip table range %u %u\n", | |
441 | zvrf->tbl_mgr->start, | |
442 | zvrf->tbl_mgr->end); | |
c319e19d QY |
443 | } else { |
444 | vty_frame(vty, "vrf %s\n", zvrf_name(zvrf)); | |
22bd3e94 | 445 | if (zvrf->l3vni) |
996c9314 LB |
446 | vty_out(vty, " vni %u%s\n", zvrf->l3vni, |
447 | is_l3vni_for_prefix_routes_only( | |
448 | zvrf->l3vni) | |
449 | ? " prefix-routes-only" | |
450 | : ""); | |
b95c1883 | 451 | zebra_ns_config_write(vty, (struct ns *)vrf->ns_ctxt); |
5a0bdc78 PG |
452 | if (zvrf->zebra_rnh_ip_default_route) |
453 | vty_out(vty, " ip nht resolve-via-default\n"); | |
454 | ||
455 | if (zvrf->zebra_rnh_ipv6_default_route) | |
456 | vty_out(vty, " ipv6 nht resolve-via-default\n"); | |
42d4b30e PG |
457 | |
458 | if (zvrf->tbl_mgr && vrf_is_backend_netns() | |
459 | && (zvrf->tbl_mgr->start || zvrf->tbl_mgr->end)) | |
460 | vty_out(vty, " ip table range %u %u\n", | |
461 | zvrf->tbl_mgr->start, | |
462 | zvrf->tbl_mgr->end); | |
22bd3e94 | 463 | } |
37728041 | 464 | |
5a0bdc78 | 465 | |
7cf16e19 | 466 | zebra_routemap_config_write_protocol(vty, zvrf); |
03fba42e | 467 | router_id_write(vty, zvrf); |
7cf16e19 | 468 | |
c319e19d | 469 | if (zvrf_id(zvrf) != VRF_DEFAULT) |
07679ad9 | 470 | vty_endframe(vty, "exit-vrf\n!\n"); |
7cf16e19 | 471 | else |
472 | vty_out(vty, "!\n"); | |
d62a17ae | 473 | } |
474 | return 0; | |
f30c50b9 RW |
475 | } |
476 | ||
37cb0475 IR |
477 | DEFPY (vrf_netns, |
478 | vrf_netns_cmd, | |
479 | "netns NAME$netns_name", | |
480 | "Attach VRF to a Namespace\n" | |
481 | "The file name in " NS_RUN_DIR ", or a full pathname\n") | |
482 | { | |
483 | char *pathname = ns_netns_pathname(vty, netns_name); | |
484 | int ret; | |
485 | ||
486 | VTY_DECLVAR_CONTEXT(vrf, vrf); | |
487 | ||
488 | if (!pathname) | |
489 | return CMD_WARNING_CONFIG_FAILED; | |
490 | ||
491 | frr_with_privs(&zserv_privs) { | |
62d89c64 IR |
492 | ret = zebra_vrf_netns_handler_create( |
493 | vty, vrf, pathname, NS_UNKNOWN, NS_UNKNOWN, NS_UNKNOWN); | |
37cb0475 IR |
494 | } |
495 | ||
496 | return ret; | |
497 | } | |
498 | ||
499 | DEFUN (no_vrf_netns, | |
500 | no_vrf_netns_cmd, | |
501 | "no netns [NAME]", | |
502 | NO_STR | |
503 | "Detach VRF from a Namespace\n" | |
504 | "The file name in " NS_RUN_DIR ", or a full pathname\n") | |
505 | { | |
506 | struct ns *ns = NULL; | |
507 | ||
508 | VTY_DECLVAR_CONTEXT(vrf, vrf); | |
509 | ||
510 | if (!vrf_is_backend_netns()) { | |
511 | vty_out(vty, "VRF backend is not Netns. Aborting\n"); | |
512 | return CMD_WARNING_CONFIG_FAILED; | |
513 | } | |
514 | if (!vrf->ns_ctxt) { | |
515 | vty_out(vty, "VRF %s(%u) is not configured with NetNS\n", | |
516 | vrf->name, vrf->vrf_id); | |
517 | return CMD_WARNING_CONFIG_FAILED; | |
518 | } | |
519 | ||
520 | ns = (struct ns *)vrf->ns_ctxt; | |
521 | ||
522 | ns->vrf_ctxt = NULL; | |
523 | vrf_disable(vrf); | |
524 | /* vrf ID from VRF is necessary for Zebra | |
525 | * so that propagate to other clients is done | |
526 | */ | |
527 | ns_delete(ns); | |
528 | vrf->ns_ctxt = NULL; | |
529 | return CMD_SUCCESS; | |
530 | } | |
531 | ||
62d89c64 IR |
532 | /* if ns_id is different and not VRF_UNKNOWN, |
533 | * then update vrf identifier, and enable VRF | |
534 | */ | |
535 | static void vrf_update_vrf_id(ns_id_t ns_id, void *opaqueptr) | |
536 | { | |
537 | ns_id_t vrf_id = (vrf_id_t)ns_id; | |
538 | vrf_id_t old_vrf_id; | |
539 | struct vrf *vrf = (struct vrf *)opaqueptr; | |
540 | ||
541 | if (!vrf) | |
542 | return; | |
543 | old_vrf_id = vrf->vrf_id; | |
544 | if (vrf_id == vrf->vrf_id) | |
545 | return; | |
546 | if (vrf->vrf_id != VRF_UNKNOWN) | |
547 | RB_REMOVE(vrf_id_head, &vrfs_by_id, vrf); | |
548 | vrf->vrf_id = vrf_id; | |
549 | RB_INSERT(vrf_id_head, &vrfs_by_id, vrf); | |
550 | if (old_vrf_id == VRF_UNKNOWN) | |
551 | vrf_enable(vrf); | |
552 | } | |
553 | ||
554 | int zebra_vrf_netns_handler_create(struct vty *vty, struct vrf *vrf, | |
555 | char *pathname, ns_id_t ns_id, | |
556 | ns_id_t internal_ns_id, | |
557 | ns_id_t rel_def_ns_id) | |
558 | { | |
559 | struct ns *ns = NULL; | |
560 | ||
561 | if (!vrf) | |
562 | return CMD_WARNING_CONFIG_FAILED; | |
563 | if (vrf->vrf_id != VRF_UNKNOWN && vrf->ns_ctxt == NULL) { | |
564 | if (vty) | |
565 | vty_out(vty, | |
566 | "VRF %u is already configured with VRF %s\n", | |
567 | vrf->vrf_id, vrf->name); | |
568 | else | |
569 | zlog_info("VRF %u is already configured with VRF %s", | |
570 | vrf->vrf_id, vrf->name); | |
571 | return CMD_WARNING_CONFIG_FAILED; | |
572 | } | |
573 | if (vrf->ns_ctxt != NULL) { | |
574 | ns = (struct ns *)vrf->ns_ctxt; | |
575 | if (!strcmp(ns->name, pathname)) { | |
576 | if (vty) | |
577 | vty_out(vty, | |
578 | "VRF %u already configured with NETNS %s\n", | |
579 | vrf->vrf_id, ns->name); | |
580 | else | |
581 | zlog_info( | |
582 | "VRF %u already configured with NETNS %s", | |
583 | vrf->vrf_id, ns->name); | |
d61e157a | 584 | return CMD_WARNING; |
62d89c64 IR |
585 | } |
586 | } | |
587 | ns = ns_lookup_name(pathname); | |
588 | if (ns && ns->vrf_ctxt) { | |
589 | struct vrf *vrf2 = (struct vrf *)ns->vrf_ctxt; | |
590 | ||
591 | if (vrf2 == vrf) | |
592 | return CMD_SUCCESS; | |
593 | if (vty) | |
594 | vty_out(vty, | |
595 | "NS %s is already configured with VRF %u(%s)\n", | |
596 | ns->name, vrf2->vrf_id, vrf2->name); | |
597 | else | |
598 | zlog_info("NS %s is already configured with VRF %u(%s)", | |
599 | ns->name, vrf2->vrf_id, vrf2->name); | |
600 | return CMD_WARNING_CONFIG_FAILED; | |
601 | } | |
602 | ns = ns_get_created(ns, pathname, ns_id); | |
603 | ns->internal_ns_id = internal_ns_id; | |
604 | ns->relative_default_ns = rel_def_ns_id; | |
605 | ns->vrf_ctxt = (void *)vrf; | |
606 | vrf->ns_ctxt = (void *)ns; | |
607 | /* update VRF netns NAME */ | |
608 | strlcpy(vrf->data.l.netns_name, basename(pathname), NS_NAMSIZ); | |
609 | ||
610 | if (!ns_enable(ns, vrf_update_vrf_id)) { | |
611 | if (vty) | |
612 | vty_out(vty, "Can not associate NS %u with NETNS %s\n", | |
613 | ns->ns_id, ns->name); | |
614 | else | |
615 | zlog_info("Can not associate NS %u with NETNS %s", | |
616 | ns->ns_id, ns->name); | |
617 | return CMD_WARNING_CONFIG_FAILED; | |
618 | } | |
619 | ||
620 | return CMD_SUCCESS; | |
621 | } | |
622 | ||
7c551956 | 623 | /* Zebra VRF initialization. */ |
d62a17ae | 624 | void zebra_vrf_init(void) |
7c551956 | 625 | { |
996c9314 | 626 | vrf_init(zebra_vrf_new, zebra_vrf_enable, zebra_vrf_disable, |
ac2cb9bf | 627 | zebra_vrf_delete); |
7c551956 | 628 | |
903c6fa2 IR |
629 | hook_register(zserv_client_close, release_daemon_table_chunks); |
630 | ||
cfc369c4 | 631 | vrf_cmd_init(vrf_config_write); |
37cb0475 IR |
632 | |
633 | if (vrf_is_backend_netns() && ns_have_netns()) { | |
634 | /* Install NS commands. */ | |
635 | install_element(VRF_NODE, &vrf_netns_cmd); | |
636 | install_element(VRF_NODE, &no_vrf_netns_cmd); | |
637 | } | |
7c551956 | 638 | } |