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Commit | Line | Data |
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7e24fdf3 DS |
1 | /* |
2 | * Zebra connect code. | |
3 | * Copyright (C) 2018 Cumulus Networks, Inc. | |
4 | * Donald Sharp | |
5 | * | |
8d5cbee9 DS |
6 | * This program is free software; you can redistribute it and/or modify it |
7 | * under the terms of the GNU General Public License as published by the Free | |
8 | * Software Foundation; either version 2 of the License, or (at your option) | |
9 | * any later version. | |
7e24fdf3 | 10 | * |
8d5cbee9 DS |
11 | * This program is distributed in the hope that it will be useful, but WITHOUT |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
7e24fdf3 DS |
15 | * |
16 | * You should have received a copy of the GNU General Public License along | |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | #include <zebra.h> | |
21 | ||
22 | #include "thread.h" | |
23 | #include "command.h" | |
24 | #include "network.h" | |
25 | #include "prefix.h" | |
26 | #include "routemap.h" | |
27 | #include "table.h" | |
28 | #include "srcdest_table.h" | |
29 | #include "stream.h" | |
30 | #include "memory.h" | |
31 | #include "zclient.h" | |
32 | #include "filter.h" | |
33 | #include "plist.h" | |
34 | #include "log.h" | |
35 | #include "nexthop.h" | |
36 | #include "nexthop_group.h" | |
74f0a94e | 37 | #include "hash.h" |
f591b309 | 38 | #include "jhash.h" |
7e24fdf3 DS |
39 | |
40 | #include "static_vrf.h" | |
41 | #include "static_routes.h" | |
42 | #include "static_zebra.h" | |
43 | #include "static_nht.h" | |
44 | #include "static_vty.h" | |
b2f6ab67 | 45 | #include "static_debug.h" |
6f5db0b1 | 46 | |
7e24fdf3 DS |
47 | /* Zebra structure to hold current status. */ |
48 | struct zclient *zclient; | |
74f0a94e | 49 | static struct hash *static_nht_hash; |
7e24fdf3 | 50 | |
7e24fdf3 | 51 | /* Inteface addition message from zebra. */ |
ef7bd2a3 | 52 | static int static_ifp_create(struct interface *ifp) |
7e24fdf3 | 53 | { |
7e24fdf3 | 54 | static_ifindex_update(ifp, true); |
ef7bd2a3 | 55 | |
7e24fdf3 DS |
56 | return 0; |
57 | } | |
58 | ||
3c3c3252 | 59 | static int static_ifp_destroy(struct interface *ifp) |
7e24fdf3 | 60 | { |
7e24fdf3 DS |
61 | static_ifindex_update(ifp, false); |
62 | return 0; | |
63 | } | |
64 | ||
121f9dee | 65 | static int interface_address_add(ZAPI_CALLBACK_ARGS) |
7e24fdf3 | 66 | { |
121f9dee | 67 | zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
7e24fdf3 DS |
68 | |
69 | return 0; | |
70 | } | |
71 | ||
121f9dee | 72 | static int interface_address_delete(ZAPI_CALLBACK_ARGS) |
7e24fdf3 DS |
73 | { |
74 | struct connected *c; | |
75 | ||
121f9dee | 76 | c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
7e24fdf3 DS |
77 | |
78 | if (!c) | |
79 | return 0; | |
80 | ||
721c0857 | 81 | connected_free(&c); |
7e24fdf3 DS |
82 | return 0; |
83 | } | |
84 | ||
ddbf3e60 | 85 | static int static_ifp_up(struct interface *ifp) |
7e24fdf3 | 86 | { |
ddbf3e60 DS |
87 | /* Install any static reliant on this interface coming up */ |
88 | static_install_intf_nh(ifp); | |
89 | static_ifindex_update(ifp, true); | |
90 | ||
7e24fdf3 DS |
91 | return 0; |
92 | } | |
93 | ||
b0b69e59 | 94 | static int static_ifp_down(struct interface *ifp) |
7e24fdf3 | 95 | { |
b0b69e59 | 96 | static_ifindex_update(ifp, false); |
7e24fdf3 DS |
97 | |
98 | return 0; | |
99 | } | |
100 | ||
121f9dee | 101 | static int route_notify_owner(ZAPI_CALLBACK_ARGS) |
7e24fdf3 DS |
102 | { |
103 | struct prefix p; | |
104 | enum zapi_route_notify_owner note; | |
105 | uint32_t table_id; | |
7e24fdf3 | 106 | |
77b38a4a S |
107 | if (!zapi_route_notify_decode(zclient->ibuf, &p, &table_id, ¬e, |
108 | NULL, NULL)) | |
7e24fdf3 DS |
109 | return -1; |
110 | ||
111 | switch (note) { | |
112 | case ZAPI_ROUTE_FAIL_INSTALL: | |
9fafbd15 | 113 | static_nht_mark_state(&p, vrf_id, STATIC_NOT_INSTALLED); |
2dbe669b DA |
114 | zlog_warn("%s: Route %pFX failed to install for table: %u", |
115 | __func__, &p, table_id); | |
7e24fdf3 DS |
116 | break; |
117 | case ZAPI_ROUTE_BETTER_ADMIN_WON: | |
9fafbd15 | 118 | static_nht_mark_state(&p, vrf_id, STATIC_NOT_INSTALLED); |
15569c58 | 119 | zlog_warn( |
2dbe669b DA |
120 | "%s: Route %pFX over-ridden by better route for table: %u", |
121 | __func__, &p, table_id); | |
7e24fdf3 DS |
122 | break; |
123 | case ZAPI_ROUTE_INSTALLED: | |
9fafbd15 | 124 | static_nht_mark_state(&p, vrf_id, STATIC_INSTALLED); |
7e24fdf3 DS |
125 | break; |
126 | case ZAPI_ROUTE_REMOVED: | |
9fafbd15 | 127 | static_nht_mark_state(&p, vrf_id, STATIC_NOT_INSTALLED); |
7e24fdf3 DS |
128 | break; |
129 | case ZAPI_ROUTE_REMOVE_FAIL: | |
9fafbd15 | 130 | static_nht_mark_state(&p, vrf_id, STATIC_INSTALLED); |
2dbe669b DA |
131 | zlog_warn("%s: Route %pFX failure to remove for table: %u", |
132 | __func__, &p, table_id); | |
7e24fdf3 DS |
133 | break; |
134 | } | |
135 | ||
136 | return 0; | |
137 | } | |
138 | static void zebra_connected(struct zclient *zclient) | |
139 | { | |
140 | zclient_send_reg_requests(zclient, VRF_DEFAULT); | |
141 | } | |
142 | ||
74f0a94e DS |
143 | struct static_nht_data { |
144 | struct prefix *nh; | |
f591b309 DS |
145 | |
146 | vrf_id_t nh_vrf_id; | |
147 | ||
74f0a94e DS |
148 | uint32_t refcount; |
149 | uint8_t nh_num; | |
150 | }; | |
7e24fdf3 | 151 | |
b1ab2876 | 152 | /* API to check whether the configured nexthop address is |
153 | * one of its local connected address or not. | |
154 | */ | |
155 | static bool | |
156 | static_nexthop_is_local(vrf_id_t vrfid, struct prefix *addr, int family) | |
157 | { | |
158 | if (family == AF_INET) { | |
1e9044be | 159 | if (if_address_is_local(&addr->u.prefix4, AF_INET, vrfid)) |
b1ab2876 | 160 | return true; |
161 | } else if (family == AF_INET6) { | |
1e9044be | 162 | if (if_address_is_local(&addr->u.prefix6, AF_INET6, vrfid)) |
b1ab2876 | 163 | return true; |
164 | } | |
165 | return false; | |
166 | } | |
121f9dee | 167 | static int static_zebra_nexthop_update(ZAPI_CALLBACK_ARGS) |
7e24fdf3 | 168 | { |
74f0a94e | 169 | struct static_nht_data *nhtd, lookup; |
7e24fdf3 DS |
170 | struct zapi_route nhr; |
171 | afi_t afi = AFI_IP; | |
172 | ||
173 | if (!zapi_nexthop_update_decode(zclient->ibuf, &nhr)) { | |
6c83dded | 174 | zlog_err("Failure to decode nexthop update message"); |
7e24fdf3 DS |
175 | return 1; |
176 | } | |
177 | ||
178 | if (nhr.prefix.family == AF_INET6) | |
179 | afi = AFI_IP6; | |
180 | ||
b1ab2876 | 181 | if (nhr.type == ZEBRA_ROUTE_CONNECT) { |
182 | if (static_nexthop_is_local(vrf_id, &nhr.prefix, | |
183 | nhr.prefix.family)) | |
184 | nhr.nexthop_num = 0; | |
185 | } | |
186 | ||
74f0a94e DS |
187 | memset(&lookup, 0, sizeof(lookup)); |
188 | lookup.nh = &nhr.prefix; | |
f591b309 | 189 | lookup.nh_vrf_id = vrf_id; |
74f0a94e DS |
190 | |
191 | nhtd = hash_lookup(static_nht_hash, &lookup); | |
f591b309 DS |
192 | |
193 | if (nhtd) { | |
74f0a94e DS |
194 | nhtd->nh_num = nhr.nexthop_num; |
195 | ||
9fafbd15 | 196 | static_nht_reset_start(&nhr.prefix, afi, nhtd->nh_vrf_id); |
27da3044 | 197 | static_nht_update(NULL, &nhr.prefix, nhr.nexthop_num, afi, |
f591b309 DS |
198 | nhtd->nh_vrf_id); |
199 | } else | |
200 | zlog_err("No nhtd?"); | |
74f0a94e | 201 | |
7e24fdf3 DS |
202 | return 1; |
203 | } | |
204 | ||
205 | static void static_zebra_capabilities(struct zclient_capabilities *cap) | |
206 | { | |
207 | mpls_enabled = cap->mpls_enabled; | |
abc246e1 | 208 | zebra_ecmp_count = cap->ecmp; |
7e24fdf3 DS |
209 | } |
210 | ||
d8b87afe | 211 | static unsigned int static_nht_hash_key(const void *data) |
74f0a94e | 212 | { |
d8b87afe | 213 | const struct static_nht_data *nhtd = data; |
f591b309 | 214 | unsigned int key = 0; |
74f0a94e | 215 | |
f591b309 DS |
216 | key = prefix_hash_key(nhtd->nh); |
217 | return jhash_1word(nhtd->nh_vrf_id, key); | |
74f0a94e DS |
218 | } |
219 | ||
74df8d6d | 220 | static bool static_nht_hash_cmp(const void *d1, const void *d2) |
74f0a94e DS |
221 | { |
222 | const struct static_nht_data *nhtd1 = d1; | |
223 | const struct static_nht_data *nhtd2 = d2; | |
224 | ||
f591b309 | 225 | if (nhtd1->nh_vrf_id != nhtd2->nh_vrf_id) |
74df8d6d | 226 | return false; |
f591b309 | 227 | |
74f0a94e DS |
228 | return prefix_same(nhtd1->nh, nhtd2->nh); |
229 | } | |
230 | ||
231 | static void *static_nht_hash_alloc(void *data) | |
232 | { | |
233 | struct static_nht_data *copy = data; | |
234 | struct static_nht_data *new; | |
235 | ||
236 | new = XMALLOC(MTYPE_TMP, sizeof(*new)); | |
237 | ||
238 | new->nh = prefix_new(); | |
239 | prefix_copy(new->nh, copy->nh); | |
240 | new->refcount = 0; | |
241 | new->nh_num = 0; | |
f591b309 | 242 | new->nh_vrf_id = copy->nh_vrf_id; |
74f0a94e DS |
243 | |
244 | return new; | |
245 | } | |
246 | ||
247 | static void static_nht_hash_free(void *data) | |
248 | { | |
249 | struct static_nht_data *nhtd = data; | |
250 | ||
63265b5c | 251 | prefix_free(&nhtd->nh); |
74f0a94e DS |
252 | XFREE(MTYPE_TMP, nhtd); |
253 | } | |
254 | ||
4067e951 | 255 | void static_zebra_nht_register(struct static_nexthop *nh, bool reg) |
7e24fdf3 | 256 | { |
4067e951 IR |
257 | struct static_path *pn = nh->pn; |
258 | struct route_node *rn = pn->rn; | |
74f0a94e | 259 | struct static_nht_data *nhtd, lookup; |
7e24fdf3 DS |
260 | uint32_t cmd; |
261 | struct prefix p; | |
74f0a94e | 262 | afi_t afi = AFI_IP; |
7e24fdf3 DS |
263 | |
264 | cmd = (reg) ? | |
265 | ZEBRA_NEXTHOP_REGISTER : ZEBRA_NEXTHOP_UNREGISTER; | |
266 | ||
88fa5104 | 267 | if (nh->nh_registered && reg) |
7e24fdf3 DS |
268 | return; |
269 | ||
88fa5104 | 270 | if (!nh->nh_registered && !reg) |
7e24fdf3 DS |
271 | return; |
272 | ||
273 | memset(&p, 0, sizeof(p)); | |
88fa5104 | 274 | switch (nh->type) { |
7e24fdf3 DS |
275 | case STATIC_IFNAME: |
276 | case STATIC_BLACKHOLE: | |
7e24fdf3 DS |
277 | return; |
278 | case STATIC_IPV4_GATEWAY: | |
88a90016 | 279 | case STATIC_IPV4_GATEWAY_IFNAME: |
7e24fdf3 DS |
280 | p.family = AF_INET; |
281 | p.prefixlen = IPV4_MAX_BITLEN; | |
88fa5104 | 282 | p.u.prefix4 = nh->addr.ipv4; |
74f0a94e | 283 | afi = AFI_IP; |
7e24fdf3 DS |
284 | break; |
285 | case STATIC_IPV6_GATEWAY: | |
88a90016 | 286 | case STATIC_IPV6_GATEWAY_IFNAME: |
7e24fdf3 DS |
287 | p.family = AF_INET6; |
288 | p.prefixlen = IPV6_MAX_BITLEN; | |
88fa5104 | 289 | p.u.prefix6 = nh->addr.ipv6; |
74f0a94e | 290 | afi = AFI_IP6; |
7e24fdf3 DS |
291 | break; |
292 | } | |
293 | ||
74f0a94e DS |
294 | memset(&lookup, 0, sizeof(lookup)); |
295 | lookup.nh = &p; | |
88fa5104 | 296 | lookup.nh_vrf_id = nh->nh_vrf_id; |
74f0a94e | 297 | |
88fa5104 | 298 | nh->nh_registered = reg; |
74f0a94e DS |
299 | |
300 | if (reg) { | |
301 | nhtd = hash_get(static_nht_hash, &lookup, | |
302 | static_nht_hash_alloc); | |
303 | nhtd->refcount++; | |
304 | ||
b2f6ab67 | 305 | DEBUGD(&static_dbg_route, |
306 | "Registered nexthop(%pFX) for %pRN %d", &p, rn, | |
307 | nhtd->nh_num); | |
6f5db0b1 | 308 | if (nhtd->refcount > 1 && nhtd->nh_num) { |
88fa5104 | 309 | static_nht_update(&rn->p, nhtd->nh, nhtd->nh_num, afi, |
310 | nh->nh_vrf_id); | |
74f0a94e DS |
311 | return; |
312 | } | |
313 | } else { | |
314 | nhtd = hash_lookup(static_nht_hash, &lookup); | |
315 | if (!nhtd) | |
316 | return; | |
317 | ||
318 | nhtd->refcount--; | |
319 | if (nhtd->refcount >= 1) | |
320 | return; | |
321 | ||
322 | hash_release(static_nht_hash, nhtd); | |
323 | static_nht_hash_free(nhtd); | |
324 | } | |
325 | ||
ed6cec97 | 326 | if (zclient_send_rnh(zclient, cmd, &p, false, false, nh->nh_vrf_id) |
7cfdb485 | 327 | == ZCLIENT_SEND_FAILURE) |
15569c58 | 328 | zlog_warn("%s: Failure to send nexthop to zebra", __func__); |
7e24fdf3 | 329 | } |
88fa5104 | 330 | /* |
331 | * When nexthop gets updated via configuration then use the | |
332 | * already registered NH and resend the route to zebra | |
333 | */ | |
4067e951 | 334 | int static_zebra_nh_update(struct static_nexthop *nh) |
88fa5104 | 335 | { |
4067e951 IR |
336 | struct static_path *pn = nh->pn; |
337 | struct route_node *rn = pn->rn; | |
88fa5104 | 338 | struct static_nht_data *nhtd, lookup = {}; |
339 | struct prefix p = {}; | |
340 | afi_t afi = AFI_IP; | |
341 | ||
342 | if (!nh->nh_registered) | |
343 | return 0; | |
344 | ||
345 | switch (nh->type) { | |
346 | case STATIC_IFNAME: | |
347 | case STATIC_BLACKHOLE: | |
348 | return 0; | |
349 | case STATIC_IPV4_GATEWAY: | |
350 | case STATIC_IPV4_GATEWAY_IFNAME: | |
351 | p.family = AF_INET; | |
352 | p.prefixlen = IPV4_MAX_BITLEN; | |
353 | p.u.prefix4 = nh->addr.ipv4; | |
354 | afi = AFI_IP; | |
355 | break; | |
356 | case STATIC_IPV6_GATEWAY: | |
357 | case STATIC_IPV6_GATEWAY_IFNAME: | |
358 | p.family = AF_INET6; | |
359 | p.prefixlen = IPV6_MAX_BITLEN; | |
360 | p.u.prefix6 = nh->addr.ipv6; | |
361 | afi = AFI_IP6; | |
362 | break; | |
363 | } | |
364 | ||
365 | lookup.nh = &p; | |
366 | lookup.nh_vrf_id = nh->nh_vrf_id; | |
367 | ||
368 | nhtd = hash_lookup(static_nht_hash, &lookup); | |
369 | if (nhtd && nhtd->nh_num) { | |
370 | nh->state = STATIC_START; | |
371 | static_nht_update(&rn->p, nhtd->nh, nhtd->nh_num, afi, | |
372 | nh->nh_vrf_id); | |
373 | return 1; | |
374 | } | |
375 | return 0; | |
376 | } | |
7e24fdf3 | 377 | |
4067e951 | 378 | extern void static_zebra_route_add(struct static_path *pn, bool install) |
7e24fdf3 | 379 | { |
4067e951 IR |
380 | struct route_node *rn = pn->rn; |
381 | struct static_route_info *si = rn->info; | |
88fa5104 | 382 | struct static_nexthop *nh; |
7e24fdf3 DS |
383 | const struct prefix *p, *src_pp; |
384 | struct zapi_nexthop *api_nh; | |
385 | struct zapi_route api; | |
386 | uint32_t nh_num = 0; | |
387 | ||
388 | p = src_pp = NULL; | |
389 | srcdest_rnode_prefixes(rn, &p, &src_pp); | |
390 | ||
391 | memset(&api, 0, sizeof(api)); | |
4067e951 | 392 | api.vrf_id = si->svrf->vrf->vrf_id; |
7e24fdf3 | 393 | api.type = ZEBRA_ROUTE_STATIC; |
4067e951 | 394 | api.safi = si->safi; |
7e24fdf3 DS |
395 | memcpy(&api.prefix, p, sizeof(api.prefix)); |
396 | ||
397 | if (src_pp) { | |
398 | SET_FLAG(api.message, ZAPI_MESSAGE_SRCPFX); | |
399 | memcpy(&api.src_prefix, src_pp, sizeof(api.src_prefix)); | |
400 | } | |
8bc8de2c | 401 | SET_FLAG(api.flags, ZEBRA_FLAG_RR_USE_DISTANCE); |
6b193087 | 402 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
7e24fdf3 | 403 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); |
88fa5104 | 404 | if (pn->distance) { |
8bc8de2c | 405 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); |
88fa5104 | 406 | api.distance = pn->distance; |
8bc8de2c | 407 | } |
88fa5104 | 408 | if (pn->tag) { |
8bc8de2c | 409 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); |
88fa5104 | 410 | api.tag = pn->tag; |
8bc8de2c | 411 | } |
88fa5104 | 412 | if (pn->table_id != 0) { |
31d4a8e5 | 413 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); |
88fa5104 | 414 | api.tableid = pn->table_id; |
31d4a8e5 | 415 | } |
88fa5104 | 416 | frr_each(static_nexthop_list, &pn->nexthop_list, nh) { |
1f7ab1a2 MS |
417 | /* Don't overrun the nexthop array */ |
418 | if (nh_num == zebra_ecmp_count) | |
419 | break; | |
420 | ||
7e24fdf3 | 421 | api_nh = &api.nexthops[nh_num]; |
88fa5104 | 422 | if (nh->nh_vrf_id == VRF_UNKNOWN) |
95cdbe5d DS |
423 | continue; |
424 | ||
88fa5104 | 425 | api_nh->vrf_id = nh->nh_vrf_id; |
426 | if (nh->onlink) | |
68a02e06 | 427 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
065276ae SM |
428 | if (nh->color != 0) { |
429 | SET_FLAG(api.message, ZAPI_MESSAGE_SRTE); | |
430 | api_nh->srte_color = nh->color; | |
431 | } | |
fe85601c | 432 | |
88fa5104 | 433 | nh->state = STATIC_SENT_TO_ZEBRA; |
9fafbd15 | 434 | |
88fa5104 | 435 | switch (nh->type) { |
7e24fdf3 | 436 | case STATIC_IFNAME: |
88fa5104 | 437 | if (nh->ifindex == IFINDEX_INTERNAL) |
7e24fdf3 | 438 | continue; |
88fa5104 | 439 | api_nh->ifindex = nh->ifindex; |
7e24fdf3 DS |
440 | api_nh->type = NEXTHOP_TYPE_IFINDEX; |
441 | break; | |
442 | case STATIC_IPV4_GATEWAY: | |
88fa5104 | 443 | if (!nh->nh_valid) |
7e24fdf3 DS |
444 | continue; |
445 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
88fa5104 | 446 | api_nh->gate = nh->addr; |
7e24fdf3 DS |
447 | break; |
448 | case STATIC_IPV4_GATEWAY_IFNAME: | |
88fa5104 | 449 | if (nh->ifindex == IFINDEX_INTERNAL) |
7e24fdf3 | 450 | continue; |
88fa5104 | 451 | api_nh->ifindex = nh->ifindex; |
7e24fdf3 | 452 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
88fa5104 | 453 | api_nh->gate = nh->addr; |
7e24fdf3 DS |
454 | break; |
455 | case STATIC_IPV6_GATEWAY: | |
88fa5104 | 456 | if (!nh->nh_valid) |
7e24fdf3 DS |
457 | continue; |
458 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
88fa5104 | 459 | api_nh->gate = nh->addr; |
7e24fdf3 DS |
460 | break; |
461 | case STATIC_IPV6_GATEWAY_IFNAME: | |
88fa5104 | 462 | if (nh->ifindex == IFINDEX_INTERNAL) |
7e24fdf3 DS |
463 | continue; |
464 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
88fa5104 | 465 | api_nh->ifindex = nh->ifindex; |
466 | api_nh->gate = nh->addr; | |
7e24fdf3 DS |
467 | break; |
468 | case STATIC_BLACKHOLE: | |
469 | api_nh->type = NEXTHOP_TYPE_BLACKHOLE; | |
88fa5104 | 470 | switch (nh->bh_type) { |
7e24fdf3 DS |
471 | case STATIC_BLACKHOLE_DROP: |
472 | case STATIC_BLACKHOLE_NULL: | |
473 | api_nh->bh_type = BLACKHOLE_NULL; | |
474 | break; | |
475 | case STATIC_BLACKHOLE_REJECT: | |
476 | api_nh->bh_type = BLACKHOLE_REJECT; | |
477 | } | |
478 | break; | |
479 | } | |
480 | ||
88fa5104 | 481 | if (nh->snh_label.num_labels) { |
7e24fdf3 DS |
482 | int i; |
483 | ||
68a02e06 | 484 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL); |
88fa5104 | 485 | api_nh->label_num = nh->snh_label.num_labels; |
7e24fdf3 | 486 | for (i = 0; i < api_nh->label_num; i++) |
88fa5104 | 487 | api_nh->labels[i] = nh->snh_label.label[i]; |
7e24fdf3 DS |
488 | } |
489 | nh_num++; | |
490 | } | |
491 | ||
492 | api.nexthop_num = nh_num; | |
493 | ||
494 | /* | |
495 | * If we have been given an install but nothing is valid | |
496 | * go ahead and delete the route for double plus fun | |
497 | */ | |
498 | if (!nh_num && install) | |
499 | install = false; | |
500 | ||
501 | zclient_route_send(install ? | |
502 | ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE, | |
503 | zclient, &api); | |
504 | } | |
138c5a74 | 505 | |
a243d1db DL |
506 | static zclient_handler *const static_handlers[] = { |
507 | [ZEBRA_INTERFACE_ADDRESS_ADD] = interface_address_add, | |
508 | [ZEBRA_INTERFACE_ADDRESS_DELETE] = interface_address_delete, | |
509 | [ZEBRA_ROUTE_NOTIFY_OWNER] = route_notify_owner, | |
510 | [ZEBRA_NEXTHOP_UPDATE] = static_zebra_nexthop_update, | |
511 | }; | |
512 | ||
7e24fdf3 DS |
513 | void static_zebra_init(void) |
514 | { | |
515 | struct zclient_options opt = { .receive_notify = true }; | |
516 | ||
138c5a74 DS |
517 | if_zapi_callbacks(static_ifp_create, static_ifp_up, |
518 | static_ifp_down, static_ifp_destroy); | |
519 | ||
a243d1db DL |
520 | zclient = zclient_new(master, &opt, static_handlers, |
521 | array_size(static_handlers)); | |
7e24fdf3 DS |
522 | |
523 | zclient_init(zclient, ZEBRA_ROUTE_STATIC, 0, &static_privs); | |
524 | zclient->zebra_capabilities = static_zebra_capabilities; | |
525 | zclient->zebra_connected = zebra_connected; | |
74f0a94e DS |
526 | |
527 | static_nht_hash = hash_create(static_nht_hash_key, | |
528 | static_nht_hash_cmp, | |
529 | "Static Nexthop Tracking hash"); | |
7e24fdf3 | 530 | } |
fceb6174 | 531 | |
deca28a3 CH |
532 | /* static_zebra_stop used by tests/lib/test_grpc.cpp */ |
533 | void static_zebra_stop(void) | |
534 | { | |
535 | if (!zclient) | |
536 | return; | |
537 | zclient_stop(zclient); | |
538 | zclient_free(zclient); | |
539 | zclient = NULL; | |
540 | } | |
541 | ||
fceb6174 PG |
542 | void static_zebra_vrf_register(struct vrf *vrf) |
543 | { | |
544 | if (vrf->vrf_id == VRF_DEFAULT) | |
545 | return; | |
546 | zclient_send_reg_requests(zclient, vrf->vrf_id); | |
547 | } | |
548 | ||
549 | void static_zebra_vrf_unregister(struct vrf *vrf) | |
550 | { | |
551 | if (vrf->vrf_id == VRF_DEFAULT) | |
552 | return; | |
553 | zclient_send_dereg_requests(zclient, vrf->vrf_id); | |
554 | } |