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acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
b72ede27 FL |
2 | /* |
3 | * VRF functions. | |
4 | * Copyright (C) 2014 6WIND S.A. | |
b72ede27 FL |
5 | */ |
6 | ||
7 | #include <zebra.h> | |
8 | ||
6a69b354 | 9 | #include "if.h" |
b72ede27 | 10 | #include "vrf.h" |
7922fc65 | 11 | #include "vrf_int.h" |
b72ede27 FL |
12 | #include "prefix.h" |
13 | #include "table.h" | |
14 | #include "log.h" | |
15 | #include "memory.h" | |
19dc275e | 16 | #include "command.h" |
b95c1883 | 17 | #include "ns.h" |
3bc34908 | 18 | #include "privs.h" |
98cbbaea | 19 | #include "nexthop_group.h" |
b66d022e | 20 | #include "lib_errors.h" |
bc867a5d | 21 | #include "northbound.h" |
8b4cb7a6 | 22 | #include "northbound_cli.h" |
19dc275e | 23 | |
1eb92f06 | 24 | /* default VRF name value used when VRF backend is not NETNS */ |
dd114702 | 25 | #define VRF_DEFAULT_NAME_INTERNAL "default" |
ec31f30d | 26 | |
bf8d3d6a DL |
27 | DEFINE_MTYPE_STATIC(LIB, VRF, "VRF"); |
28 | DEFINE_MTYPE_STATIC(LIB, VRF_BITMAP, "VRF bit-map"); | |
4a1ab8e4 | 29 | |
96244aca | 30 | DEFINE_QOBJ_TYPE(vrf); |
e80e7cce | 31 | |
d62a17ae | 32 | static __inline int vrf_id_compare(const struct vrf *, const struct vrf *); |
33 | static __inline int vrf_name_compare(const struct vrf *, const struct vrf *); | |
1a1a7065 | 34 | |
d62a17ae | 35 | RB_GENERATE(vrf_id_head, vrf, id_entry, vrf_id_compare); |
36 | RB_GENERATE(vrf_name_head, vrf, name_entry, vrf_name_compare); | |
1a1a7065 | 37 | |
d62a17ae | 38 | struct vrf_id_head vrfs_by_id = RB_INITIALIZER(&vrfs_by_id); |
39 | struct vrf_name_head vrfs_by_name = RB_INITIALIZER(&vrfs_by_name); | |
1a1a7065 | 40 | |
78dd30b2 | 41 | static int vrf_backend; |
72261ecd | 42 | static int vrf_backend_configured; |
c200f5e1 | 43 | static char vrf_default_name[VRF_NAMSIZ] = VRF_DEFAULT_NAME_INTERNAL; |
78dd30b2 | 44 | |
19dc275e DS |
45 | /* |
46 | * Turn on/off debug code | |
47 | * for vrf. | |
48 | */ | |
c17faa4b | 49 | static int debug_vrf = 0; |
b72ede27 | 50 | |
b72ede27 | 51 | /* Holding VRF hooks */ |
1b3e9a21 | 52 | static struct vrf_master { |
d62a17ae | 53 | int (*vrf_new_hook)(struct vrf *); |
54 | int (*vrf_delete_hook)(struct vrf *); | |
55 | int (*vrf_enable_hook)(struct vrf *); | |
56 | int (*vrf_disable_hook)(struct vrf *); | |
57 | } vrf_master = { | |
58 | 0, | |
59 | }; | |
b72ede27 | 60 | |
d62a17ae | 61 | static int vrf_is_enabled(struct vrf *vrf); |
e5bf3e1e | 62 | |
216b18ef | 63 | /* VRF list existance check by name. */ |
d62a17ae | 64 | struct vrf *vrf_lookup_by_name(const char *name) |
216b18ef | 65 | { |
d62a17ae | 66 | struct vrf vrf; |
67 | strlcpy(vrf.name, name, sizeof(vrf.name)); | |
68 | return (RB_FIND(vrf_name_head, &vrfs_by_name, &vrf)); | |
216b18ef | 69 | } |
216b18ef | 70 | |
d62a17ae | 71 | static __inline int vrf_id_compare(const struct vrf *a, const struct vrf *b) |
b72ede27 | 72 | { |
d62a17ae | 73 | return (a->vrf_id - b->vrf_id); |
216b18ef DS |
74 | } |
75 | ||
d62a17ae | 76 | static int vrf_name_compare(const struct vrf *a, const struct vrf *b) |
b72ede27 | 77 | { |
d62a17ae | 78 | return strcmp(a->name, b->name); |
b72ede27 FL |
79 | } |
80 | ||
ce1be369 PG |
81 | int vrf_switch_to_netns(vrf_id_t vrf_id) |
82 | { | |
83 | char *name; | |
84 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); | |
85 | ||
ce1be369 | 86 | /* VRF is default VRF. silently ignore */ |
e26aedbe | 87 | if (!vrf || vrf->vrf_id == VRF_DEFAULT) |
9dff1132 | 88 | return 1; /* 1 = default */ |
e26aedbe PG |
89 | /* VRF has no NETNS backend. silently ignore */ |
90 | if (vrf->data.l.netns_name[0] == '\0') | |
9dff1132 | 91 | return 2; /* 2 = no netns */ |
ce1be369 PG |
92 | name = ns_netns_pathname(NULL, vrf->data.l.netns_name); |
93 | if (debug_vrf) | |
94 | zlog_debug("VRF_SWITCH: %s(%u)", name, vrf->vrf_id); | |
95 | return ns_switch_to_netns(name); | |
96 | } | |
97 | ||
98 | int vrf_switchback_to_initial(void) | |
99 | { | |
100 | int ret = ns_switchback_to_initial(); | |
101 | ||
102 | if (ret == 0 && debug_vrf) | |
103 | zlog_debug("VRF_SWITCHBACK"); | |
104 | return ret; | |
105 | } | |
106 | ||
216b18ef | 107 | /* Get a VRF. If not found, create one. |
34f8e6af DS |
108 | * Arg: |
109 | * name - The name of the vrf. May be NULL if unknown. | |
110 | * vrf_id - The vrf_id of the vrf. May be VRF_UNKNOWN if unknown | |
216b18ef | 111 | * Description: Please note that this routine can be called with just the name |
34f8e6af DS |
112 | * and 0 vrf-id |
113 | */ | |
d62a17ae | 114 | struct vrf *vrf_get(vrf_id_t vrf_id, const char *name) |
115 | { | |
116 | struct vrf *vrf = NULL; | |
117 | int new = 0; | |
118 | ||
d62a17ae | 119 | /* Nothing to see, move along here */ |
120 | if (!name && vrf_id == VRF_UNKNOWN) | |
121 | return NULL; | |
122 | ||
0c2bac38 PG |
123 | /* attempt to find already available VRF |
124 | */ | |
125 | if (name) | |
126 | vrf = vrf_lookup_by_name(name); | |
dd114702 PG |
127 | if (vrf && vrf_id != VRF_UNKNOWN |
128 | && vrf->vrf_id != VRF_UNKNOWN | |
129 | && vrf->vrf_id != vrf_id) { | |
130 | zlog_debug("VRF_GET: avoid %s creation(%u), same name exists (%u)", | |
131 | name, vrf_id, vrf->vrf_id); | |
132 | return NULL; | |
133 | } | |
d62a17ae | 134 | /* Try to find VRF both by ID and name */ |
0c2bac38 | 135 | if (!vrf && vrf_id != VRF_UNKNOWN) |
d62a17ae | 136 | vrf = vrf_lookup_by_id(vrf_id); |
d62a17ae | 137 | |
138 | if (vrf == NULL) { | |
139 | vrf = XCALLOC(MTYPE_VRF, sizeof(struct vrf)); | |
140 | vrf->vrf_id = VRF_UNKNOWN; | |
d62a17ae | 141 | QOBJ_REG(vrf, vrf); |
142 | new = 1; | |
143 | ||
144 | if (debug_vrf) | |
145 | zlog_debug("VRF(%u) %s is created.", vrf_id, | |
146 | (name) ? name : "(NULL)"); | |
147 | } | |
148 | ||
149 | /* Set identifier */ | |
150 | if (vrf_id != VRF_UNKNOWN && vrf->vrf_id == VRF_UNKNOWN) { | |
151 | vrf->vrf_id = vrf_id; | |
152 | RB_INSERT(vrf_id_head, &vrfs_by_id, vrf); | |
153 | } | |
154 | ||
155 | /* Set name */ | |
156 | if (name && vrf->name[0] != '\0' && strcmp(name, vrf->name)) { | |
87272aff | 157 | /* update the vrf name */ |
d62a17ae | 158 | RB_REMOVE(vrf_name_head, &vrfs_by_name, vrf); |
87272aff PG |
159 | strlcpy(vrf->data.l.netns_name, |
160 | name, NS_NAMSIZ); | |
d62a17ae | 161 | strlcpy(vrf->name, name, sizeof(vrf->name)); |
162 | RB_INSERT(vrf_name_head, &vrfs_by_name, vrf); | |
163 | } else if (name && vrf->name[0] == '\0') { | |
164 | strlcpy(vrf->name, name, sizeof(vrf->name)); | |
165 | RB_INSERT(vrf_name_head, &vrfs_by_name, vrf); | |
166 | } | |
d62a17ae | 167 | if (new &&vrf_master.vrf_new_hook) |
168 | (*vrf_master.vrf_new_hook)(vrf); | |
169 | ||
170 | return vrf; | |
b72ede27 FL |
171 | } |
172 | ||
75d26fb3 | 173 | /* Update a VRF. If not found, create one. |
174 | * Arg: | |
175 | * name - The name of the vrf. | |
176 | * vrf_id - The vrf_id of the vrf. | |
177 | * Description: This function first finds the vrf using its name. If the vrf is | |
178 | * found and the vrf-id of the existing vrf does not match the new vrf id, it | |
179 | * will disable the existing vrf and update it with new vrf-id. If the vrf is | |
180 | * not found, it will create the vrf with given name and the new vrf id. | |
181 | */ | |
182 | struct vrf *vrf_update(vrf_id_t new_vrf_id, const char *name) | |
183 | { | |
184 | struct vrf *vrf = NULL; | |
185 | ||
186 | /*Treat VRF add for existing vrf as update | |
187 | * Update VRF ID and also update in VRF ID table | |
188 | */ | |
189 | if (name) | |
190 | vrf = vrf_lookup_by_name(name); | |
191 | if (vrf && new_vrf_id != VRF_UNKNOWN && vrf->vrf_id != VRF_UNKNOWN | |
192 | && vrf->vrf_id != new_vrf_id) { | |
193 | if (debug_vrf) { | |
194 | zlog_debug( | |
195 | "Vrf Update event: %s old id: %u, new id: %u", | |
196 | name, vrf->vrf_id, new_vrf_id); | |
197 | } | |
198 | ||
199 | /*Disable the vrf to simulate implicit delete | |
200 | * so that all stale routes are deleted | |
201 | * This vrf will be enabled down the line | |
202 | */ | |
203 | vrf_disable(vrf); | |
204 | ||
205 | ||
206 | RB_REMOVE(vrf_id_head, &vrfs_by_id, vrf); | |
207 | vrf->vrf_id = new_vrf_id; | |
208 | RB_INSERT(vrf_id_head, &vrfs_by_id, vrf); | |
209 | ||
210 | } else { | |
211 | ||
212 | /* | |
213 | * vrf_get is implied creation if it does not exist | |
214 | */ | |
215 | vrf = vrf_get(new_vrf_id, name); | |
216 | } | |
217 | return vrf; | |
218 | } | |
219 | ||
84915b0a | 220 | /* Delete a VRF. This is called when the underlying VRF goes away, a |
221 | * pre-configured VRF is deleted or when shutting down (vrf_terminate()). | |
222 | */ | |
d62a17ae | 223 | void vrf_delete(struct vrf *vrf) |
b72ede27 | 224 | { |
d62a17ae | 225 | if (debug_vrf) |
c7384cf8 DS |
226 | zlog_debug("VRF %s(%u) is to be deleted.", vrf->name, |
227 | vrf->vrf_id); | |
b72ede27 | 228 | |
d62a17ae | 229 | if (vrf_is_enabled(vrf)) |
230 | vrf_disable(vrf); | |
e5bf3e1e | 231 | |
f60a1188 IR |
232 | if (vrf->vrf_id != VRF_UNKNOWN) { |
233 | RB_REMOVE(vrf_id_head, &vrfs_by_id, vrf); | |
234 | vrf->vrf_id = VRF_UNKNOWN; | |
235 | } | |
236 | ||
84915b0a | 237 | /* If the VRF is user configured, it'll stick around, just remove |
238 | * the ID mapping. Interfaces assigned to this VRF should've been | |
239 | * removed already as part of the VRF going down. | |
240 | */ | |
9acc98c8 | 241 | if (vrf_is_user_cfged(vrf)) |
84915b0a | 242 | return; |
84915b0a | 243 | |
f60a1188 IR |
244 | /* Do not delete the VRF if it has interfaces configured in it. */ |
245 | if (!RB_EMPTY(if_name_head, &vrf->ifaces_by_name)) | |
246 | return; | |
247 | ||
d62a17ae | 248 | if (vrf_master.vrf_delete_hook) |
249 | (*vrf_master.vrf_delete_hook)(vrf); | |
216b18ef | 250 | |
d62a17ae | 251 | QOBJ_UNREG(vrf); |
b72ede27 | 252 | |
d62a17ae | 253 | if (vrf->name[0] != '\0') |
254 | RB_REMOVE(vrf_name_head, &vrfs_by_name, vrf); | |
b72ede27 | 255 | |
d62a17ae | 256 | XFREE(MTYPE_VRF, vrf); |
b72ede27 FL |
257 | } |
258 | ||
259 | /* Look up a VRF by identifier. */ | |
d62a17ae | 260 | struct vrf *vrf_lookup_by_id(vrf_id_t vrf_id) |
b72ede27 | 261 | { |
d62a17ae | 262 | struct vrf vrf; |
263 | vrf.vrf_id = vrf_id; | |
264 | return (RB_FIND(vrf_id_head, &vrfs_by_id, &vrf)); | |
b72ede27 FL |
265 | } |
266 | ||
e5bf3e1e FL |
267 | /* |
268 | * Enable a VRF - that is, let the VRF be ready to use. | |
269 | * The VRF_ENABLE_HOOK callback will be called to inform | |
270 | * that they can allocate resources in this VRF. | |
271 | * | |
272 | * RETURN: 1 - enabled successfully; otherwise, 0. | |
273 | */ | |
d62a17ae | 274 | int vrf_enable(struct vrf *vrf) |
e5bf3e1e | 275 | { |
d62a17ae | 276 | if (vrf_is_enabled(vrf)) |
277 | return 1; | |
05e8e11e | 278 | |
d62a17ae | 279 | if (debug_vrf) |
c7384cf8 | 280 | zlog_debug("VRF %s(%u) is enabled.", vrf->name, vrf->vrf_id); |
e5bf3e1e | 281 | |
d62a17ae | 282 | SET_FLAG(vrf->status, VRF_ACTIVE); |
e5bf3e1e | 283 | |
d62a17ae | 284 | if (vrf_master.vrf_enable_hook) |
285 | (*vrf_master.vrf_enable_hook)(vrf); | |
e5bf3e1e | 286 | |
98cbbaea DS |
287 | /* |
288 | * If we have any nexthop group entries that | |
289 | * are awaiting vrf initialization then | |
290 | * let's let people know about it | |
291 | */ | |
292 | nexthop_group_enable_vrf(vrf); | |
293 | ||
d62a17ae | 294 | return 1; |
e5bf3e1e FL |
295 | } |
296 | ||
297 | /* | |
298 | * Disable a VRF - that is, let the VRF be unusable. | |
299 | * The VRF_DELETE_HOOK callback will be called to inform | |
300 | * that they must release the resources in the VRF. | |
301 | */ | |
697d3ec7 | 302 | void vrf_disable(struct vrf *vrf) |
e5bf3e1e | 303 | { |
d62a17ae | 304 | if (!vrf_is_enabled(vrf)) |
305 | return; | |
a647bfa8 | 306 | |
d62a17ae | 307 | UNSET_FLAG(vrf->status, VRF_ACTIVE); |
e5bf3e1e | 308 | |
d62a17ae | 309 | if (debug_vrf) |
c7384cf8 DS |
310 | zlog_debug("VRF %s(%u) is to be disabled.", vrf->name, |
311 | vrf->vrf_id); | |
e5bf3e1e | 312 | |
d62a17ae | 313 | /* Till now, nothing to be done for the default VRF. */ |
314 | // Pending: see why this statement. | |
e74f14fc | 315 | |
0cbee799 DS |
316 | |
317 | /* | |
318 | * When the vrf is disabled let's | |
319 | * handle all nexthop-groups associated | |
320 | * with this vrf | |
321 | */ | |
322 | nexthop_group_disable_vrf(vrf); | |
323 | ||
d62a17ae | 324 | if (vrf_master.vrf_disable_hook) |
325 | (*vrf_master.vrf_disable_hook)(vrf); | |
e5bf3e1e FL |
326 | } |
327 | ||
b7cfce93 MK |
328 | const char *vrf_id_to_name(vrf_id_t vrf_id) |
329 | { | |
330 | struct vrf *vrf; | |
331 | ||
7c1119cb CG |
332 | if (vrf_id == VRF_DEFAULT) |
333 | return VRF_DEFAULT_NAME; | |
334 | ||
b7cfce93 | 335 | vrf = vrf_lookup_by_id(vrf_id); |
bd47f3a3 | 336 | return VRF_LOGNAME(vrf); |
b7cfce93 MK |
337 | } |
338 | ||
b72ede27 | 339 | /* Look up the data pointer of the specified VRF. */ |
d62a17ae | 340 | void *vrf_info_lookup(vrf_id_t vrf_id) |
b72ede27 | 341 | { |
d62a17ae | 342 | struct vrf *vrf = vrf_lookup_by_id(vrf_id); |
343 | return vrf ? vrf->info : NULL; | |
b72ede27 FL |
344 | } |
345 | ||
7076bb2f | 346 | /* |
4a8bf858 | 347 | * VRF hash for storing set or not. |
7076bb2f | 348 | */ |
4a8bf858 DS |
349 | struct vrf_bit_set { |
350 | vrf_id_t vrf_id; | |
351 | bool set; | |
352 | }; | |
7076bb2f | 353 | |
d8b87afe | 354 | static unsigned int vrf_hash_bitmap_key(const void *data) |
4a8bf858 | 355 | { |
d8b87afe | 356 | const struct vrf_bit_set *bit = data; |
d62a17ae | 357 | |
4a8bf858 DS |
358 | return bit->vrf_id; |
359 | } | |
d62a17ae | 360 | |
74df8d6d | 361 | static bool vrf_hash_bitmap_cmp(const void *a, const void *b) |
4a8bf858 DS |
362 | { |
363 | const struct vrf_bit_set *bit1 = a; | |
364 | const struct vrf_bit_set *bit2 = b; | |
d62a17ae | 365 | |
4a8bf858 DS |
366 | return bit1->vrf_id == bit2->vrf_id; |
367 | } | |
368 | ||
369 | static void *vrf_hash_bitmap_alloc(void *data) | |
370 | { | |
371 | struct vrf_bit_set *copy = data; | |
372 | struct vrf_bit_set *bit; | |
373 | ||
374 | bit = XMALLOC(MTYPE_VRF_BITMAP, sizeof(*bit)); | |
375 | bit->vrf_id = copy->vrf_id; | |
376 | ||
377 | return bit; | |
378 | } | |
379 | ||
380 | static void vrf_hash_bitmap_free(void *data) | |
381 | { | |
382 | struct vrf_bit_set *bit = data; | |
383 | ||
384 | XFREE(MTYPE_VRF_BITMAP, bit); | |
385 | } | |
7076bb2f | 386 | |
d62a17ae | 387 | vrf_bitmap_t vrf_bitmap_init(void) |
7076bb2f | 388 | { |
4a8bf858 DS |
389 | return hash_create_size(32, vrf_hash_bitmap_key, vrf_hash_bitmap_cmp, |
390 | "VRF BIT HASH"); | |
7076bb2f FL |
391 | } |
392 | ||
d62a17ae | 393 | void vrf_bitmap_free(vrf_bitmap_t bmap) |
7076bb2f | 394 | { |
4a8bf858 | 395 | struct hash *vrf_hash = bmap; |
7076bb2f | 396 | |
d8bc11a5 | 397 | hash_clean_and_free(&vrf_hash, vrf_hash_bitmap_free); |
7076bb2f FL |
398 | } |
399 | ||
d62a17ae | 400 | void vrf_bitmap_set(vrf_bitmap_t bmap, vrf_id_t vrf_id) |
7076bb2f | 401 | { |
4a8bf858 DS |
402 | struct vrf_bit_set lookup = { .vrf_id = vrf_id }; |
403 | struct hash *vrf_hash = bmap; | |
404 | struct vrf_bit_set *bit; | |
7076bb2f | 405 | |
4a8bf858 | 406 | if (vrf_hash == NULL || vrf_id == VRF_UNKNOWN) |
d62a17ae | 407 | return; |
7076bb2f | 408 | |
4a8bf858 DS |
409 | bit = hash_get(vrf_hash, &lookup, vrf_hash_bitmap_alloc); |
410 | bit->set = true; | |
7076bb2f FL |
411 | } |
412 | ||
d62a17ae | 413 | void vrf_bitmap_unset(vrf_bitmap_t bmap, vrf_id_t vrf_id) |
7076bb2f | 414 | { |
4a8bf858 DS |
415 | struct vrf_bit_set lookup = { .vrf_id = vrf_id }; |
416 | struct hash *vrf_hash = bmap; | |
417 | struct vrf_bit_set *bit; | |
7076bb2f | 418 | |
4a8bf858 | 419 | if (vrf_hash == NULL || vrf_id == VRF_UNKNOWN) |
d62a17ae | 420 | return; |
7076bb2f | 421 | |
4a8bf858 DS |
422 | bit = hash_get(vrf_hash, &lookup, vrf_hash_bitmap_alloc); |
423 | bit->set = false; | |
7076bb2f FL |
424 | } |
425 | ||
d62a17ae | 426 | int vrf_bitmap_check(vrf_bitmap_t bmap, vrf_id_t vrf_id) |
7076bb2f | 427 | { |
4a8bf858 DS |
428 | struct vrf_bit_set lookup = { .vrf_id = vrf_id }; |
429 | struct hash *vrf_hash = bmap; | |
430 | struct vrf_bit_set *bit; | |
7076bb2f | 431 | |
4a8bf858 | 432 | if (vrf_hash == NULL || vrf_id == VRF_UNKNOWN) |
d62a17ae | 433 | return 0; |
7076bb2f | 434 | |
4a8bf858 DS |
435 | bit = hash_lookup(vrf_hash, &lookup); |
436 | if (bit) | |
437 | return bit->set; | |
438 | ||
439 | return 0; | |
7076bb2f FL |
440 | } |
441 | ||
d62a17ae | 442 | static void vrf_autocomplete(vector comps, struct cmd_token *token) |
d617d5fe | 443 | { |
d62a17ae | 444 | struct vrf *vrf = NULL; |
d617d5fe | 445 | |
723001fc PG |
446 | RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) |
447 | vector_set(comps, XSTRDUP(MTYPE_COMPLETION, vrf->name)); | |
d617d5fe DS |
448 | } |
449 | ||
450 | static const struct cmd_variable_handler vrf_var_handlers[] = { | |
d62a17ae | 451 | { |
452 | .varname = "vrf", | |
453 | .completions = vrf_autocomplete, | |
454 | }, | |
e429a2a0 IR |
455 | { |
456 | .varname = "vrf_name", | |
457 | .completions = vrf_autocomplete, | |
458 | }, | |
459 | { | |
460 | .varname = "nexthop_vrf", | |
461 | .completions = vrf_autocomplete, | |
462 | }, | |
d62a17ae | 463 | {.completions = NULL}, |
d617d5fe DS |
464 | }; |
465 | ||
b72ede27 | 466 | /* Initialize VRF module. */ |
d62a17ae | 467 | void vrf_init(int (*create)(struct vrf *), int (*enable)(struct vrf *), |
ac2cb9bf | 468 | int (*disable)(struct vrf *), int (*destroy)(struct vrf *)) |
d62a17ae | 469 | { |
470 | struct vrf *default_vrf; | |
471 | ||
e26aedbe PG |
472 | /* initialise NS, in case VRF backend if NETNS */ |
473 | ns_init(); | |
d62a17ae | 474 | if (debug_vrf) |
15569c58 | 475 | zlog_debug("%s: Initializing VRF subsystem", __func__); |
d62a17ae | 476 | |
477 | vrf_master.vrf_new_hook = create; | |
478 | vrf_master.vrf_enable_hook = enable; | |
479 | vrf_master.vrf_disable_hook = disable; | |
d01b92fd | 480 | vrf_master.vrf_delete_hook = destroy; |
d62a17ae | 481 | |
482 | /* The default VRF always exists. */ | |
eb6934d5 | 483 | default_vrf = vrf_get(VRF_DEFAULT, VRF_DEFAULT_NAME); |
d62a17ae | 484 | if (!default_vrf) { |
450971aa | 485 | flog_err(EC_LIB_VRF_START, |
1c50c1c0 | 486 | "vrf_init: failed to create the default VRF!"); |
d62a17ae | 487 | exit(1); |
488 | } | |
20c87e98 TC |
489 | if (vrf_is_backend_netns()) { |
490 | struct ns *ns; | |
491 | ||
fdafe17e | 492 | strlcpy(default_vrf->data.l.netns_name, |
eb6934d5 | 493 | VRF_DEFAULT_NAME, NS_NAMSIZ); |
1eb92f06 | 494 | ns = ns_lookup(NS_DEFAULT); |
c3568c4d TC |
495 | ns->vrf_ctxt = default_vrf; |
496 | default_vrf->ns_ctxt = ns; | |
20c87e98 | 497 | } |
d62a17ae | 498 | |
499 | /* Enable the default VRF. */ | |
500 | if (!vrf_enable(default_vrf)) { | |
450971aa | 501 | flog_err(EC_LIB_VRF_START, |
1c50c1c0 | 502 | "vrf_init: failed to enable the default VRF!"); |
d62a17ae | 503 | exit(1); |
504 | } | |
505 | ||
506 | cmd_variable_handler_register(vrf_var_handlers); | |
b72ede27 FL |
507 | } |
508 | ||
ea0d70b1 SW |
509 | static void vrf_terminate_single(struct vrf *vrf) |
510 | { | |
511 | /* Clear configured flag and invoke delete. */ | |
b14fa9c4 | 512 | vrf_disable(vrf); |
ea0d70b1 | 513 | UNSET_FLAG(vrf->status, VRF_CONFIGURED); |
f60a1188 | 514 | if_terminate(vrf); |
ce27a13e | 515 | vrf_delete(vrf); |
ea0d70b1 SW |
516 | } |
517 | ||
b72ede27 | 518 | /* Terminate VRF module. */ |
d62a17ae | 519 | void vrf_terminate(void) |
b72ede27 | 520 | { |
ea0d70b1 | 521 | struct vrf *vrf, *tmp; |
b72ede27 | 522 | |
d62a17ae | 523 | if (debug_vrf) |
15569c58 | 524 | zlog_debug("%s: Shutting down vrf subsystem", __func__); |
19dc275e | 525 | |
ea0d70b1 SW |
526 | RB_FOREACH_SAFE (vrf, vrf_id_head, &vrfs_by_id, tmp) { |
527 | if (vrf->vrf_id == VRF_DEFAULT) | |
528 | continue; | |
55cd0f61 | 529 | |
ea0d70b1 | 530 | vrf_terminate_single(vrf); |
65c3a7c4 | 531 | } |
55cd0f61 | 532 | |
ea0d70b1 SW |
533 | RB_FOREACH_SAFE (vrf, vrf_name_head, &vrfs_by_name, tmp) { |
534 | if (vrf->vrf_id == VRF_DEFAULT) | |
535 | continue; | |
55cd0f61 | 536 | |
ea0d70b1 | 537 | vrf_terminate_single(vrf); |
65c3a7c4 | 538 | } |
ea0d70b1 SW |
539 | |
540 | /* Finally terminate default VRF */ | |
541 | vrf = vrf_lookup_by_id(VRF_DEFAULT); | |
b8984d4e DL |
542 | if (vrf) |
543 | vrf_terminate_single(vrf); | |
b72ede27 FL |
544 | } |
545 | ||
0f4977c6 | 546 | int vrf_socket(int domain, int type, int protocol, vrf_id_t vrf_id, |
02fe07c7 | 547 | const char *interfacename) |
e5bf3e1e | 548 | { |
2e0d2b3d | 549 | int ret, save_errno, ret2; |
e5bf3e1e | 550 | |
2e0d2b3d PG |
551 | ret = vrf_switch_to_netns(vrf_id); |
552 | if (ret < 0) | |
450971aa | 553 | flog_err_sys(EC_LIB_SOCKET, "%s: Can't switch to VRF %u (%s)", |
09c866e3 | 554 | __func__, vrf_id, safe_strerror(errno)); |
b66d022e | 555 | |
d62a17ae | 556 | ret = socket(domain, type, protocol); |
2e0d2b3d PG |
557 | save_errno = errno; |
558 | ret2 = vrf_switchback_to_initial(); | |
559 | if (ret2 < 0) | |
450971aa | 560 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
561 | "%s: Can't switchback from VRF %u (%s)", __func__, |
562 | vrf_id, safe_strerror(errno)); | |
2e0d2b3d | 563 | errno = save_errno; |
0f4977c6 PG |
564 | if (ret <= 0) |
565 | return ret; | |
566 | ret2 = vrf_bind(vrf_id, ret, interfacename); | |
567 | if (ret2 < 0) { | |
568 | close(ret); | |
569 | ret = ret2; | |
570 | } | |
d62a17ae | 571 | return ret; |
e5bf3e1e FL |
572 | } |
573 | ||
78dd30b2 PG |
574 | int vrf_is_backend_netns(void) |
575 | { | |
576 | return (vrf_backend == VRF_BACKEND_NETNS); | |
577 | } | |
578 | ||
579 | int vrf_get_backend(void) | |
580 | { | |
72261ecd PG |
581 | if (!vrf_backend_configured) |
582 | return VRF_BACKEND_UNKNOWN; | |
78dd30b2 PG |
583 | return vrf_backend; |
584 | } | |
585 | ||
7239d3d9 | 586 | int vrf_configure_backend(enum vrf_backend_type backend) |
78dd30b2 | 587 | { |
f7d45925 QY |
588 | /* Work around issue in old gcc */ |
589 | switch (backend) { | |
590 | case VRF_BACKEND_UNKNOWN: | |
591 | case VRF_BACKEND_NETNS: | |
592 | case VRF_BACKEND_VRF_LITE: | |
593 | break; | |
bde30e78 | 594 | case VRF_BACKEND_MAX: |
7239d3d9 | 595 | return -1; |
f7d45925 | 596 | } |
7239d3d9 QY |
597 | |
598 | vrf_backend = backend; | |
72261ecd | 599 | vrf_backend_configured = 1; |
7239d3d9 QY |
600 | |
601 | return 0; | |
78dd30b2 PG |
602 | } |
603 | ||
697d3ec7 | 604 | /* vrf CLI commands */ |
16d6ea59 QY |
605 | DEFUN_NOSH(vrf_exit, |
606 | vrf_exit_cmd, | |
607 | "exit-vrf", | |
608 | "Exit current mode and down to previous mode\n") | |
609 | { | |
799a81df | 610 | cmd_exit(vty); |
16d6ea59 QY |
611 | return CMD_SUCCESS; |
612 | } | |
613 | ||
ca77b518 | 614 | DEFUN_YANG_NOSH (vrf, |
697d3ec7 PG |
615 | vrf_cmd, |
616 | "vrf NAME", | |
617 | "Select a VRF to configure\n" | |
618 | "VRF's name\n") | |
619 | { | |
620 | int idx_name = 1; | |
621 | const char *vrfname = argv[idx_name]->arg; | |
62d89c64 IR |
622 | char xpath_list[XPATH_MAXLEN]; |
623 | struct vrf *vrf; | |
624 | int ret; | |
697d3ec7 | 625 | |
62d89c64 IR |
626 | if (strlen(vrfname) > VRF_NAMSIZ) { |
627 | vty_out(vty, | |
628 | "%% VRF name %s invalid: length exceeds %d bytes\n", | |
629 | vrfname, VRF_NAMSIZ); | |
630 | return CMD_WARNING_CONFIG_FAILED; | |
631 | } | |
632 | ||
633 | snprintf(xpath_list, sizeof(xpath_list), FRR_VRF_KEY_XPATH, vrfname); | |
634 | ||
635 | nb_cli_enqueue_change(vty, xpath_list, NB_OP_CREATE, NULL); | |
ae08de9f | 636 | ret = nb_cli_apply_changes_clear_pending(vty, "%s", xpath_list); |
62d89c64 IR |
637 | if (ret == CMD_SUCCESS) { |
638 | VTY_PUSH_XPATH(VRF_NODE, xpath_list); | |
639 | vrf = vrf_lookup_by_name(vrfname); | |
640 | if (vrf) | |
641 | VTY_PUSH_CONTEXT(VRF_NODE, vrf); | |
642 | } | |
643 | ||
644 | return ret; | |
697d3ec7 PG |
645 | } |
646 | ||
ca77b518 | 647 | DEFUN_YANG (no_vrf, |
34c46274 RW |
648 | no_vrf_cmd, |
649 | "no vrf NAME", | |
650 | NO_STR | |
651 | "Delete a pseudo VRF's configuration\n" | |
652 | "VRF's name\n") | |
f30c50b9 | 653 | { |
d62a17ae | 654 | const char *vrfname = argv[2]->arg; |
8b4cb7a6 | 655 | char xpath_list[XPATH_MAXLEN]; |
53dc2b05 | 656 | |
d62a17ae | 657 | struct vrf *vrfp; |
f30c50b9 | 658 | |
d62a17ae | 659 | vrfp = vrf_lookup_by_name(vrfname); |
f30c50b9 | 660 | |
cd980d03 IR |
661 | if (vrfp == NULL) |
662 | return CMD_SUCCESS; | |
f30c50b9 | 663 | |
d62a17ae | 664 | if (CHECK_FLAG(vrfp->status, VRF_ACTIVE)) { |
665 | vty_out(vty, "%% Only inactive VRFs can be deleted\n"); | |
666 | return CMD_WARNING_CONFIG_FAILED; | |
667 | } | |
f30c50b9 | 668 | |
f5eef2d5 IR |
669 | if (vrf_get_backend() == VRF_BACKEND_VRF_LITE) { |
670 | /* | |
574445ec | 671 | * Remove the VRF interface config when removing the VRF. |
f5eef2d5 IR |
672 | */ |
673 | snprintf(xpath_list, sizeof(xpath_list), | |
574445ec | 674 | "/frr-interface:lib/interface[name='%s']", vrfname); |
f5eef2d5 IR |
675 | nb_cli_enqueue_change(vty, xpath_list, NB_OP_DESTROY, NULL); |
676 | } | |
677 | ||
09b150ef | 678 | snprintf(xpath_list, sizeof(xpath_list), FRR_VRF_KEY_XPATH, vrfname); |
f30c50b9 | 679 | |
8b4cb7a6 | 680 | nb_cli_enqueue_change(vty, xpath_list, NB_OP_DESTROY, NULL); |
f5eef2d5 | 681 | return nb_cli_apply_changes(vty, NULL); |
f30c50b9 RW |
682 | } |
683 | ||
53dc2b05 | 684 | |
62b346ee | 685 | static struct cmd_node vrf_node = { |
f4b8291f | 686 | .name = "vrf", |
62b346ee | 687 | .node = VRF_NODE, |
24389580 | 688 | .parent_node = CONFIG_NODE, |
62b346ee | 689 | .prompt = "%s(config-vrf)# ", |
62b346ee | 690 | }; |
7ddcfca4 | 691 | |
19dc275e DS |
692 | /* |
693 | * Debug CLI for vrf's | |
694 | */ | |
695 | DEFUN (vrf_debug, | |
696 | vrf_debug_cmd, | |
697 | "debug vrf", | |
698 | DEBUG_STR | |
699 | "VRF Debugging\n") | |
700 | { | |
d62a17ae | 701 | debug_vrf = 1; |
19dc275e | 702 | |
d62a17ae | 703 | return CMD_SUCCESS; |
19dc275e DS |
704 | } |
705 | ||
706 | DEFUN (no_vrf_debug, | |
707 | no_vrf_debug_cmd, | |
708 | "no debug vrf", | |
709 | NO_STR | |
710 | DEBUG_STR | |
711 | "VRF Debugging\n") | |
712 | { | |
d62a17ae | 713 | debug_vrf = 0; |
19dc275e | 714 | |
d62a17ae | 715 | return CMD_SUCCESS; |
19dc275e DS |
716 | } |
717 | ||
d62a17ae | 718 | static int vrf_write_host(struct vty *vty) |
19dc275e | 719 | { |
d62a17ae | 720 | if (debug_vrf) |
721 | vty_out(vty, "debug vrf\n"); | |
19dc275e | 722 | |
d62a17ae | 723 | return 1; |
19dc275e DS |
724 | } |
725 | ||
612c2c15 | 726 | static int vrf_write_host(struct vty *vty); |
62b346ee | 727 | static struct cmd_node vrf_debug_node = { |
f4b8291f | 728 | .name = "vrf debug", |
62b346ee DL |
729 | .node = VRF_DEBUG_NODE, |
730 | .prompt = "", | |
612c2c15 | 731 | .config_write = vrf_write_host, |
62b346ee | 732 | }; |
19dc275e | 733 | |
d62a17ae | 734 | void vrf_install_commands(void) |
19dc275e | 735 | { |
612c2c15 | 736 | install_node(&vrf_debug_node); |
19dc275e | 737 | |
d62a17ae | 738 | install_element(CONFIG_NODE, &vrf_debug_cmd); |
739 | install_element(ENABLE_NODE, &vrf_debug_cmd); | |
740 | install_element(CONFIG_NODE, &no_vrf_debug_cmd); | |
741 | install_element(ENABLE_NODE, &no_vrf_debug_cmd); | |
19dc275e | 742 | } |
53dc2b05 | 743 | |
cfc369c4 | 744 | void vrf_cmd_init(int (*writefunc)(struct vty *vty)) |
7ddcfca4 | 745 | { |
d62a17ae | 746 | install_element(CONFIG_NODE, &vrf_cmd); |
747 | install_element(CONFIG_NODE, &no_vrf_cmd); | |
612c2c15 DL |
748 | vrf_node.config_write = writefunc; |
749 | install_node(&vrf_node); | |
d62a17ae | 750 | install_default(VRF_NODE); |
16d6ea59 | 751 | install_element(VRF_NODE, &vrf_exit_cmd); |
19dc275e | 752 | } |
ec31f30d | 753 | |
ac2cb9bf | 754 | void vrf_set_default_name(const char *default_name) |
ec31f30d | 755 | { |
c200f5e1 | 756 | snprintf(vrf_default_name, VRF_NAMSIZ, "%s", default_name); |
c200f5e1 PG |
757 | } |
758 | ||
759 | const char *vrf_get_default_name(void) | |
760 | { | |
761 | return vrf_default_name; | |
762 | } | |
763 | ||
36eef858 | 764 | int vrf_bind(vrf_id_t vrf_id, int fd, const char *ifname) |
0f4977c6 PG |
765 | { |
766 | int ret = 0; | |
91f854f6 | 767 | struct interface *ifp; |
36eef858 IR |
768 | struct vrf *vrf; |
769 | ||
770 | if (fd < 0) | |
771 | return -1; | |
772 | ||
773 | if (vrf_id == VRF_UNKNOWN) | |
774 | return -1; | |
775 | ||
776 | /* can't bind to a VRF that doesn't exist */ | |
777 | vrf = vrf_lookup_by_id(vrf_id); | |
778 | if (!vrf_is_enabled(vrf)) | |
779 | return -1; | |
780 | ||
781 | if (ifname && strcmp(ifname, vrf->name)) { | |
782 | /* binding to a regular interface */ | |
783 | ||
784 | /* can't bind to an interface that doesn't exist */ | |
785 | ifp = if_lookup_by_name(ifname, vrf_id); | |
786 | if (!ifp) | |
787 | return -1; | |
788 | } else { | |
789 | /* binding to a VRF device */ | |
790 | ||
791 | /* nothing to do for netns */ | |
792 | if (vrf_is_backend_netns()) | |
793 | return 0; | |
794 | ||
795 | /* nothing to do for default vrf */ | |
796 | if (vrf_id == VRF_DEFAULT) | |
797 | return 0; | |
798 | ||
799 | ifname = vrf->name; | |
800 | } | |
0f4977c6 | 801 | |
0f4977c6 | 802 | #ifdef SO_BINDTODEVICE |
36eef858 IR |
803 | ret = setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, ifname, |
804 | strlen(ifname) + 1); | |
0f4977c6 | 805 | if (ret < 0) |
36eef858 IR |
806 | zlog_err("bind to interface %s failed, errno=%d", ifname, |
807 | errno); | |
0f4977c6 PG |
808 | #endif /* SO_BINDTODEVICE */ |
809 | return ret; | |
810 | } | |
2e0d2b3d | 811 | int vrf_getaddrinfo(const char *node, const char *service, |
996c9314 LB |
812 | const struct addrinfo *hints, struct addrinfo **res, |
813 | vrf_id_t vrf_id) | |
2e0d2b3d PG |
814 | { |
815 | int ret, ret2, save_errno; | |
816 | ||
817 | ret = vrf_switch_to_netns(vrf_id); | |
818 | if (ret < 0) | |
450971aa | 819 | flog_err_sys(EC_LIB_SOCKET, "%s: Can't switch to VRF %u (%s)", |
09c866e3 | 820 | __func__, vrf_id, safe_strerror(errno)); |
2e0d2b3d PG |
821 | ret = getaddrinfo(node, service, hints, res); |
822 | save_errno = errno; | |
823 | ret2 = vrf_switchback_to_initial(); | |
824 | if (ret2 < 0) | |
450971aa | 825 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
826 | "%s: Can't switchback from VRF %u (%s)", __func__, |
827 | vrf_id, safe_strerror(errno)); | |
2e0d2b3d PG |
828 | errno = save_errno; |
829 | return ret; | |
830 | } | |
831 | ||
516d7591 PG |
832 | int vrf_ioctl(vrf_id_t vrf_id, int d, unsigned long request, char *params) |
833 | { | |
834 | int ret, saved_errno, rc; | |
835 | ||
836 | ret = vrf_switch_to_netns(vrf_id); | |
837 | if (ret < 0) { | |
450971aa | 838 | flog_err_sys(EC_LIB_SOCKET, "%s: Can't switch to VRF %u (%s)", |
09c866e3 | 839 | __func__, vrf_id, safe_strerror(errno)); |
516d7591 PG |
840 | return 0; |
841 | } | |
842 | rc = ioctl(d, request, params); | |
843 | saved_errno = errno; | |
844 | ret = vrf_switchback_to_initial(); | |
845 | if (ret < 0) | |
450971aa | 846 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
847 | "%s: Can't switchback from VRF %u (%s)", __func__, |
848 | vrf_id, safe_strerror(errno)); | |
516d7591 PG |
849 | errno = saved_errno; |
850 | return rc; | |
851 | } | |
852 | ||
0f4977c6 | 853 | int vrf_sockunion_socket(const union sockunion *su, vrf_id_t vrf_id, |
02fe07c7 | 854 | const char *interfacename) |
2e0d2b3d PG |
855 | { |
856 | int ret, save_errno, ret2; | |
857 | ||
858 | ret = vrf_switch_to_netns(vrf_id); | |
859 | if (ret < 0) | |
450971aa | 860 | flog_err_sys(EC_LIB_SOCKET, "%s: Can't switch to VRF %u (%s)", |
09c866e3 | 861 | __func__, vrf_id, safe_strerror(errno)); |
2e0d2b3d PG |
862 | ret = sockunion_socket(su); |
863 | save_errno = errno; | |
864 | ret2 = vrf_switchback_to_initial(); | |
865 | if (ret2 < 0) | |
450971aa | 866 | flog_err_sys(EC_LIB_SOCKET, |
09c866e3 QY |
867 | "%s: Can't switchback from VRF %u (%s)", __func__, |
868 | vrf_id, safe_strerror(errno)); | |
2e0d2b3d | 869 | errno = save_errno; |
0f4977c6 PG |
870 | |
871 | if (ret <= 0) | |
872 | return ret; | |
873 | ret2 = vrf_bind(vrf_id, ret, interfacename); | |
874 | if (ret2 < 0) { | |
875 | close(ret); | |
876 | ret = ret2; | |
877 | } | |
2e0d2b3d PG |
878 | return ret; |
879 | } | |
0b014ea6 | 880 | |
bc867a5d CS |
881 | /* ------- Northbound callbacks ------- */ |
882 | ||
883 | /* | |
884 | * XPath: /frr-vrf:lib/vrf | |
885 | */ | |
60ee8be1 | 886 | static int lib_vrf_create(struct nb_cb_create_args *args) |
bc867a5d CS |
887 | { |
888 | const char *vrfname; | |
889 | struct vrf *vrfp; | |
890 | ||
60ee8be1 | 891 | vrfname = yang_dnode_get_string(args->dnode, "./name"); |
bc867a5d | 892 | |
60ee8be1 | 893 | if (args->event != NB_EV_APPLY) |
bc867a5d CS |
894 | return NB_OK; |
895 | ||
896 | vrfp = vrf_get(VRF_UNKNOWN, vrfname); | |
897 | ||
b9b794db | 898 | SET_FLAG(vrfp->status, VRF_CONFIGURED); |
60ee8be1 | 899 | nb_running_set_entry(args->dnode, vrfp); |
bc867a5d CS |
900 | |
901 | return NB_OK; | |
902 | } | |
903 | ||
60ee8be1 | 904 | static int lib_vrf_destroy(struct nb_cb_destroy_args *args) |
bc867a5d CS |
905 | { |
906 | struct vrf *vrfp; | |
907 | ||
60ee8be1 | 908 | switch (args->event) { |
bc867a5d | 909 | case NB_EV_VALIDATE: |
60ee8be1 | 910 | vrfp = nb_running_get_entry(args->dnode, NULL, true); |
bc867a5d | 911 | if (CHECK_FLAG(vrfp->status, VRF_ACTIVE)) { |
10bdc68f RW |
912 | snprintf(args->errmsg, args->errmsg_len, |
913 | "Only inactive VRFs can be deleted"); | |
bc867a5d CS |
914 | return NB_ERR_VALIDATION; |
915 | } | |
916 | break; | |
917 | case NB_EV_PREPARE: | |
918 | case NB_EV_ABORT: | |
919 | break; | |
920 | case NB_EV_APPLY: | |
60ee8be1 | 921 | vrfp = nb_running_unset_entry(args->dnode); |
8b4cb7a6 | 922 | |
bc867a5d | 923 | /* Clear configured flag and invoke delete. */ |
b9b794db | 924 | UNSET_FLAG(vrfp->status, VRF_CONFIGURED); |
bc867a5d CS |
925 | vrf_delete(vrfp); |
926 | break; | |
927 | } | |
928 | ||
929 | return NB_OK; | |
930 | } | |
931 | ||
60ee8be1 | 932 | static const void *lib_vrf_get_next(struct nb_cb_get_next_args *args) |
bc867a5d | 933 | { |
60ee8be1 | 934 | struct vrf *vrfp = (struct vrf *)args->list_entry; |
bc867a5d | 935 | |
60ee8be1 | 936 | if (args->list_entry == NULL) { |
bc867a5d CS |
937 | vrfp = RB_MIN(vrf_name_head, &vrfs_by_name); |
938 | } else { | |
939 | vrfp = RB_NEXT(vrf_name_head, vrfp); | |
940 | } | |
941 | ||
942 | return vrfp; | |
943 | } | |
944 | ||
60ee8be1 | 945 | static int lib_vrf_get_keys(struct nb_cb_get_keys_args *args) |
bc867a5d | 946 | { |
60ee8be1 | 947 | struct vrf *vrfp = (struct vrf *)args->list_entry; |
bc867a5d | 948 | |
60ee8be1 RW |
949 | args->keys->num = 1; |
950 | strlcpy(args->keys->key[0], vrfp->name, sizeof(args->keys->key[0])); | |
bc867a5d CS |
951 | |
952 | return NB_OK; | |
953 | } | |
954 | ||
60ee8be1 | 955 | static const void *lib_vrf_lookup_entry(struct nb_cb_lookup_entry_args *args) |
bc867a5d | 956 | { |
60ee8be1 | 957 | const char *vrfname = args->keys->key[0]; |
bc867a5d CS |
958 | |
959 | struct vrf *vrf = vrf_lookup_by_name(vrfname); | |
960 | ||
961 | return vrf; | |
962 | } | |
963 | ||
964 | /* | |
965 | * XPath: /frr-vrf:lib/vrf/id | |
966 | */ | |
60ee8be1 RW |
967 | static struct yang_data * |
968 | lib_vrf_state_id_get_elem(struct nb_cb_get_elem_args *args) | |
bc867a5d | 969 | { |
60ee8be1 | 970 | struct vrf *vrfp = (struct vrf *)args->list_entry; |
bc867a5d | 971 | |
60ee8be1 | 972 | return yang_data_new_uint32(args->xpath, vrfp->vrf_id); |
bc867a5d CS |
973 | } |
974 | ||
975 | /* | |
976 | * XPath: /frr-vrf:lib/vrf/active | |
977 | */ | |
60ee8be1 RW |
978 | static struct yang_data * |
979 | lib_vrf_state_active_get_elem(struct nb_cb_get_elem_args *args) | |
bc867a5d | 980 | { |
60ee8be1 | 981 | struct vrf *vrfp = (struct vrf *)args->list_entry; |
bc867a5d CS |
982 | |
983 | if (vrfp->status == VRF_ACTIVE) | |
ff9232c8 | 984 | return yang_data_new_bool(args->xpath, true); |
bc867a5d CS |
985 | |
986 | return NULL; | |
987 | } | |
988 | ||
989 | /* clang-format off */ | |
990 | const struct frr_yang_module_info frr_vrf_info = { | |
991 | .name = "frr-vrf", | |
992 | .nodes = { | |
993 | { | |
994 | .xpath = "/frr-vrf:lib/vrf", | |
995 | .cbs = { | |
996 | .create = lib_vrf_create, | |
997 | .destroy = lib_vrf_destroy, | |
998 | .get_next = lib_vrf_get_next, | |
999 | .get_keys = lib_vrf_get_keys, | |
1000 | .lookup_entry = lib_vrf_lookup_entry, | |
3bb513c3 CH |
1001 | }, |
1002 | .priority = NB_DFLT_PRIORITY - 2, | |
bc867a5d CS |
1003 | }, |
1004 | { | |
1005 | .xpath = "/frr-vrf:lib/vrf/state/id", | |
1006 | .cbs = { | |
1007 | .get_elem = lib_vrf_state_id_get_elem, | |
1008 | } | |
1009 | }, | |
1010 | { | |
1011 | .xpath = "/frr-vrf:lib/vrf/state/active", | |
1012 | .cbs = { | |
1013 | .get_elem = lib_vrf_state_active_get_elem, | |
1014 | } | |
1015 | }, | |
1016 | { | |
1017 | .xpath = NULL, | |
1018 | }, | |
1019 | } | |
1020 | }; | |
1021 |