]>
Commit | Line | Data |
---|---|---|
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 | |
50efe4be DL |
47 | DEFINE_MTYPE_STATIC(STATIC, STATIC_NHT_DATA, "Static Nexthop tracking data"); |
48 | PREDECL_HASH(static_nht_hash); | |
49 | ||
50 | struct static_nht_data { | |
51 | struct static_nht_hash_item itm; | |
52 | ||
e203efe8 | 53 | struct prefix nh; |
6bcc4665 | 54 | safi_t safi; |
50efe4be DL |
55 | |
56 | vrf_id_t nh_vrf_id; | |
57 | ||
58 | uint32_t refcount; | |
59 | uint8_t nh_num; | |
f75d3925 | 60 | bool registered; |
50efe4be DL |
61 | }; |
62 | ||
63 | static int static_nht_data_cmp(const struct static_nht_data *nhtd1, | |
64 | const struct static_nht_data *nhtd2) | |
65 | { | |
66 | if (nhtd1->nh_vrf_id != nhtd2->nh_vrf_id) | |
67 | return numcmp(nhtd1->nh_vrf_id, nhtd2->nh_vrf_id); | |
6bcc4665 DL |
68 | if (nhtd1->safi != nhtd2->safi) |
69 | return numcmp(nhtd1->safi, nhtd2->safi); | |
50efe4be | 70 | |
e203efe8 | 71 | return prefix_cmp(&nhtd1->nh, &nhtd2->nh); |
50efe4be DL |
72 | } |
73 | ||
74 | static unsigned int static_nht_data_hash(const struct static_nht_data *nhtd) | |
75 | { | |
76 | unsigned int key = 0; | |
77 | ||
e203efe8 | 78 | key = prefix_hash_key(&nhtd->nh); |
6bcc4665 | 79 | return jhash_2words(nhtd->nh_vrf_id, nhtd->safi, key); |
50efe4be DL |
80 | } |
81 | ||
82 | DECLARE_HASH(static_nht_hash, struct static_nht_data, itm, static_nht_data_cmp, | |
83 | static_nht_data_hash); | |
84 | ||
85 | static struct static_nht_hash_head static_nht_hash[1]; | |
86 | ||
7e24fdf3 DS |
87 | /* Zebra structure to hold current status. */ |
88 | struct zclient *zclient; | |
7c1e76aa | 89 | uint32_t zebra_ecmp_count = MULTIPATH_NUM; |
7e24fdf3 | 90 | |
61879cab | 91 | /* Interface addition message from zebra. */ |
ef7bd2a3 | 92 | static int static_ifp_create(struct interface *ifp) |
7e24fdf3 | 93 | { |
7e24fdf3 | 94 | static_ifindex_update(ifp, true); |
ef7bd2a3 | 95 | |
7e24fdf3 DS |
96 | return 0; |
97 | } | |
98 | ||
3c3c3252 | 99 | static int static_ifp_destroy(struct interface *ifp) |
7e24fdf3 | 100 | { |
7e24fdf3 DS |
101 | static_ifindex_update(ifp, false); |
102 | return 0; | |
103 | } | |
104 | ||
121f9dee | 105 | static int interface_address_add(ZAPI_CALLBACK_ARGS) |
7e24fdf3 | 106 | { |
121f9dee | 107 | zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
7e24fdf3 DS |
108 | |
109 | return 0; | |
110 | } | |
111 | ||
121f9dee | 112 | static int interface_address_delete(ZAPI_CALLBACK_ARGS) |
7e24fdf3 DS |
113 | { |
114 | struct connected *c; | |
115 | ||
121f9dee | 116 | c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
7e24fdf3 DS |
117 | |
118 | if (!c) | |
119 | return 0; | |
120 | ||
721c0857 | 121 | connected_free(&c); |
7e24fdf3 DS |
122 | return 0; |
123 | } | |
124 | ||
ddbf3e60 | 125 | static int static_ifp_up(struct interface *ifp) |
7e24fdf3 | 126 | { |
ddbf3e60 DS |
127 | /* Install any static reliant on this interface coming up */ |
128 | static_install_intf_nh(ifp); | |
129 | static_ifindex_update(ifp, true); | |
130 | ||
7e24fdf3 DS |
131 | return 0; |
132 | } | |
133 | ||
b0b69e59 | 134 | static int static_ifp_down(struct interface *ifp) |
7e24fdf3 | 135 | { |
b0b69e59 | 136 | static_ifindex_update(ifp, false); |
7e24fdf3 DS |
137 | |
138 | return 0; | |
139 | } | |
140 | ||
121f9dee | 141 | static int route_notify_owner(ZAPI_CALLBACK_ARGS) |
7e24fdf3 DS |
142 | { |
143 | struct prefix p; | |
144 | enum zapi_route_notify_owner note; | |
145 | uint32_t table_id; | |
6bcc4665 | 146 | safi_t safi; |
7e24fdf3 | 147 | |
6bcc4665 DL |
148 | if (!zapi_route_notify_decode(zclient->ibuf, &p, &table_id, ¬e, NULL, |
149 | &safi)) | |
7e24fdf3 DS |
150 | return -1; |
151 | ||
152 | switch (note) { | |
153 | case ZAPI_ROUTE_FAIL_INSTALL: | |
6bcc4665 | 154 | static_nht_mark_state(&p, safi, vrf_id, STATIC_NOT_INSTALLED); |
2dbe669b DA |
155 | zlog_warn("%s: Route %pFX failed to install for table: %u", |
156 | __func__, &p, table_id); | |
7e24fdf3 DS |
157 | break; |
158 | case ZAPI_ROUTE_BETTER_ADMIN_WON: | |
6bcc4665 | 159 | static_nht_mark_state(&p, safi, vrf_id, STATIC_NOT_INSTALLED); |
15569c58 | 160 | zlog_warn( |
2dbe669b DA |
161 | "%s: Route %pFX over-ridden by better route for table: %u", |
162 | __func__, &p, table_id); | |
7e24fdf3 DS |
163 | break; |
164 | case ZAPI_ROUTE_INSTALLED: | |
6bcc4665 | 165 | static_nht_mark_state(&p, safi, vrf_id, STATIC_INSTALLED); |
7e24fdf3 DS |
166 | break; |
167 | case ZAPI_ROUTE_REMOVED: | |
6bcc4665 | 168 | static_nht_mark_state(&p, safi, vrf_id, STATIC_NOT_INSTALLED); |
7e24fdf3 DS |
169 | break; |
170 | case ZAPI_ROUTE_REMOVE_FAIL: | |
6bcc4665 | 171 | static_nht_mark_state(&p, safi, vrf_id, STATIC_INSTALLED); |
2dbe669b DA |
172 | zlog_warn("%s: Route %pFX failure to remove for table: %u", |
173 | __func__, &p, table_id); | |
7e24fdf3 DS |
174 | break; |
175 | } | |
176 | ||
177 | return 0; | |
178 | } | |
c006c875 | 179 | |
7e24fdf3 DS |
180 | static void zebra_connected(struct zclient *zclient) |
181 | { | |
182 | zclient_send_reg_requests(zclient, VRF_DEFAULT); | |
c006c875 DL |
183 | |
184 | static_fixup_vrf_ids(vrf_info_lookup(VRF_DEFAULT)); | |
7e24fdf3 DS |
185 | } |
186 | ||
b1ab2876 | 187 | /* API to check whether the configured nexthop address is |
188 | * one of its local connected address or not. | |
189 | */ | |
190 | static bool | |
191 | static_nexthop_is_local(vrf_id_t vrfid, struct prefix *addr, int family) | |
192 | { | |
193 | if (family == AF_INET) { | |
1e9044be | 194 | if (if_address_is_local(&addr->u.prefix4, AF_INET, vrfid)) |
b1ab2876 | 195 | return true; |
196 | } else if (family == AF_INET6) { | |
1e9044be | 197 | if (if_address_is_local(&addr->u.prefix6, AF_INET6, vrfid)) |
b1ab2876 | 198 | return true; |
199 | } | |
200 | return false; | |
201 | } | |
121f9dee | 202 | static int static_zebra_nexthop_update(ZAPI_CALLBACK_ARGS) |
7e24fdf3 | 203 | { |
74f0a94e | 204 | struct static_nht_data *nhtd, lookup; |
7e24fdf3 | 205 | struct zapi_route nhr; |
06e4e901 | 206 | struct prefix matched; |
7e24fdf3 DS |
207 | afi_t afi = AFI_IP; |
208 | ||
06e4e901 | 209 | if (!zapi_nexthop_update_decode(zclient->ibuf, &matched, &nhr)) { |
6c83dded | 210 | zlog_err("Failure to decode nexthop update message"); |
7e24fdf3 DS |
211 | return 1; |
212 | } | |
213 | ||
06e4e901 | 214 | if (matched.family == AF_INET6) |
7e24fdf3 DS |
215 | afi = AFI_IP6; |
216 | ||
b1ab2876 | 217 | if (nhr.type == ZEBRA_ROUTE_CONNECT) { |
06e4e901 DS |
218 | if (static_nexthop_is_local(vrf_id, &matched, |
219 | nhr.prefix.family)) | |
b1ab2876 | 220 | nhr.nexthop_num = 0; |
221 | } | |
222 | ||
74f0a94e | 223 | memset(&lookup, 0, sizeof(lookup)); |
e203efe8 | 224 | lookup.nh = matched; |
f591b309 | 225 | lookup.nh_vrf_id = vrf_id; |
6bcc4665 | 226 | lookup.safi = nhr.safi; |
74f0a94e | 227 | |
50efe4be | 228 | nhtd = static_nht_hash_find(static_nht_hash, &lookup); |
f591b309 DS |
229 | |
230 | if (nhtd) { | |
74f0a94e DS |
231 | nhtd->nh_num = nhr.nexthop_num; |
232 | ||
6bcc4665 DL |
233 | static_nht_reset_start(&matched, afi, nhr.safi, |
234 | nhtd->nh_vrf_id); | |
06e4e901 | 235 | static_nht_update(NULL, &matched, nhr.nexthop_num, afi, |
6bcc4665 | 236 | nhr.safi, nhtd->nh_vrf_id); |
f591b309 DS |
237 | } else |
238 | zlog_err("No nhtd?"); | |
74f0a94e | 239 | |
7e24fdf3 DS |
240 | return 1; |
241 | } | |
242 | ||
243 | static void static_zebra_capabilities(struct zclient_capabilities *cap) | |
244 | { | |
245 | mpls_enabled = cap->mpls_enabled; | |
abc246e1 | 246 | zebra_ecmp_count = cap->ecmp; |
7e24fdf3 DS |
247 | } |
248 | ||
50efe4be DL |
249 | static struct static_nht_data * |
250 | static_nht_hash_getref(const struct static_nht_data *ref) | |
74f0a94e | 251 | { |
50efe4be | 252 | struct static_nht_data *nhtd; |
74f0a94e | 253 | |
50efe4be DL |
254 | nhtd = static_nht_hash_find(static_nht_hash, ref); |
255 | if (!nhtd) { | |
256 | nhtd = XCALLOC(MTYPE_STATIC_NHT_DATA, sizeof(*nhtd)); | |
74f0a94e | 257 | |
e203efe8 | 258 | prefix_copy(&nhtd->nh, &ref->nh); |
50efe4be | 259 | nhtd->nh_vrf_id = ref->nh_vrf_id; |
6bcc4665 | 260 | nhtd->safi = ref->safi; |
74f0a94e | 261 | |
50efe4be DL |
262 | static_nht_hash_add(static_nht_hash, nhtd); |
263 | } | |
f591b309 | 264 | |
50efe4be DL |
265 | nhtd->refcount++; |
266 | return nhtd; | |
74f0a94e DS |
267 | } |
268 | ||
ecb49035 | 269 | static bool static_nht_hash_decref(struct static_nht_data **nhtd_p) |
74f0a94e | 270 | { |
ecb49035 DL |
271 | struct static_nht_data *nhtd = *nhtd_p; |
272 | ||
273 | *nhtd_p = NULL; | |
274 | ||
50efe4be DL |
275 | if (--nhtd->refcount > 0) |
276 | return true; | |
74f0a94e | 277 | |
50efe4be | 278 | static_nht_hash_del(static_nht_hash, nhtd); |
50efe4be DL |
279 | XFREE(MTYPE_STATIC_NHT_DATA, nhtd); |
280 | return false; | |
74f0a94e DS |
281 | } |
282 | ||
50efe4be | 283 | static void static_nht_hash_clear(void) |
74f0a94e | 284 | { |
50efe4be | 285 | struct static_nht_data *nhtd; |
74f0a94e | 286 | |
e203efe8 | 287 | while ((nhtd = static_nht_hash_pop(static_nht_hash))) |
50efe4be | 288 | XFREE(MTYPE_STATIC_NHT_DATA, nhtd); |
74f0a94e DS |
289 | } |
290 | ||
c68cd5af DL |
291 | static bool static_zebra_nht_get_prefix(const struct static_nexthop *nh, |
292 | struct prefix *p) | |
293 | { | |
294 | switch (nh->type) { | |
295 | case STATIC_IFNAME: | |
296 | case STATIC_BLACKHOLE: | |
297 | p->family = AF_UNSPEC; | |
298 | return false; | |
299 | ||
300 | case STATIC_IPV4_GATEWAY: | |
301 | case STATIC_IPV4_GATEWAY_IFNAME: | |
302 | p->family = AF_INET; | |
303 | p->prefixlen = IPV4_MAX_BITLEN; | |
304 | p->u.prefix4 = nh->addr.ipv4; | |
305 | return true; | |
306 | ||
307 | case STATIC_IPV6_GATEWAY: | |
308 | case STATIC_IPV6_GATEWAY_IFNAME: | |
309 | p->family = AF_INET6; | |
310 | p->prefixlen = IPV6_MAX_BITLEN; | |
311 | p->u.prefix6 = nh->addr.ipv6; | |
312 | return true; | |
313 | } | |
314 | ||
315 | assertf(0, "BUG: someone forgot to add nexthop type %u", nh->type); | |
16c150f2 | 316 | return false; |
c68cd5af DL |
317 | } |
318 | ||
4067e951 | 319 | void static_zebra_nht_register(struct static_nexthop *nh, bool reg) |
7e24fdf3 | 320 | { |
4067e951 IR |
321 | struct static_path *pn = nh->pn; |
322 | struct route_node *rn = pn->rn; | |
6bcc4665 | 323 | struct static_route_info *si = static_route_info_from_rnode(rn); |
f75d3925 | 324 | struct static_nht_data *nhtd, lookup = {}; |
7e24fdf3 | 325 | uint32_t cmd; |
7e24fdf3 | 326 | |
c68cd5af | 327 | if (!static_zebra_nht_get_prefix(nh, &lookup.nh)) |
7e24fdf3 | 328 | return; |
88fa5104 | 329 | lookup.nh_vrf_id = nh->nh_vrf_id; |
6bcc4665 | 330 | lookup.safi = si->safi; |
74f0a94e | 331 | |
f75d3925 DL |
332 | if (nh->nh_registered) { |
333 | /* nh->nh_registered means we own a reference on the nhtd */ | |
334 | nhtd = static_nht_hash_find(static_nht_hash, &lookup); | |
50efe4be | 335 | |
f75d3925 DL |
336 | assertf(nhtd, "BUG: NH %pFX registered but not in hashtable", |
337 | &lookup.nh); | |
338 | } else if (reg) { | |
50efe4be | 339 | nhtd = static_nht_hash_getref(&lookup); |
74f0a94e | 340 | |
f75d3925 | 341 | if (nhtd->refcount > 1) |
f1d6b7e3 | 342 | DEBUGD(&static_dbg_route, |
f75d3925 | 343 | "Reusing registered nexthop(%pFX) for %pRN %d", |
c68cd5af | 344 | &lookup.nh, rn, nhtd->nh_num); |
f75d3925 DL |
345 | } else { |
346 | /* !reg && !nh->nh_registered */ | |
347 | zlog_warn("trying to unregister nexthop %pFX twice", | |
348 | &lookup.nh); | |
349 | return; | |
350 | } | |
c68cd5af | 351 | |
f75d3925 | 352 | nh->nh_registered = reg; |
ecb49035 | 353 | |
f75d3925 DL |
354 | if (reg) { |
355 | if (nhtd->nh_num) { | |
356 | /* refresh with existing data */ | |
357 | afi_t afi = prefix_afi(&lookup.nh); | |
358 | ||
359 | if (nh->state == STATIC_NOT_INSTALLED) | |
360 | nh->state = STATIC_START; | |
361 | static_nht_update(&rn->p, &nhtd->nh, nhtd->nh_num, afi, | |
362 | si->safi, nh->nh_vrf_id); | |
363 | return; | |
74f0a94e | 364 | } |
ecb49035 | 365 | |
f75d3925 DL |
366 | if (nhtd->registered) |
367 | /* have no data, but did send register */ | |
368 | return; | |
369 | ||
ecb49035 DL |
370 | cmd = ZEBRA_NEXTHOP_REGISTER; |
371 | DEBUGD(&static_dbg_route, "Registering nexthop(%pFX) for %pRN", | |
372 | &lookup.nh, rn); | |
74f0a94e | 373 | } else { |
f75d3925 | 374 | bool was_zebra_registered; |
50efe4be | 375 | |
f75d3925 | 376 | was_zebra_registered = nhtd->registered; |
ecb49035 DL |
377 | if (static_nht_hash_decref(&nhtd)) |
378 | /* still got references alive */ | |
74f0a94e | 379 | return; |
74f0a94e | 380 | |
f75d3925 DL |
381 | /* NB: nhtd is now NULL. */ |
382 | if (!was_zebra_registered) | |
ecb49035 DL |
383 | return; |
384 | ||
385 | cmd = ZEBRA_NEXTHOP_UNREGISTER; | |
386 | DEBUGD(&static_dbg_route, | |
387 | "Unregistering nexthop(%pFX) for %pRN", &lookup.nh, rn); | |
388 | } | |
f1d6b7e3 | 389 | |
c68cd5af | 390 | if (zclient_send_rnh(zclient, cmd, &lookup.nh, si->safi, false, false, |
eb3c9d97 | 391 | nh->nh_vrf_id) == ZCLIENT_SEND_FAILURE) |
ecb49035 DL |
392 | zlog_warn("%s: Failure to send nexthop %pFX for %pRN to zebra", |
393 | __func__, &lookup.nh, rn); | |
f75d3925 DL |
394 | else if (reg) |
395 | nhtd->registered = true; | |
88fa5104 | 396 | } |
7e24fdf3 | 397 | |
4067e951 | 398 | extern void static_zebra_route_add(struct static_path *pn, bool install) |
7e24fdf3 | 399 | { |
4067e951 IR |
400 | struct route_node *rn = pn->rn; |
401 | struct static_route_info *si = rn->info; | |
88fa5104 | 402 | struct static_nexthop *nh; |
7e24fdf3 DS |
403 | const struct prefix *p, *src_pp; |
404 | struct zapi_nexthop *api_nh; | |
405 | struct zapi_route api; | |
406 | uint32_t nh_num = 0; | |
407 | ||
408 | p = src_pp = NULL; | |
409 | srcdest_rnode_prefixes(rn, &p, &src_pp); | |
410 | ||
411 | memset(&api, 0, sizeof(api)); | |
4067e951 | 412 | api.vrf_id = si->svrf->vrf->vrf_id; |
7e24fdf3 | 413 | api.type = ZEBRA_ROUTE_STATIC; |
4067e951 | 414 | api.safi = si->safi; |
7e24fdf3 DS |
415 | memcpy(&api.prefix, p, sizeof(api.prefix)); |
416 | ||
417 | if (src_pp) { | |
418 | SET_FLAG(api.message, ZAPI_MESSAGE_SRCPFX); | |
419 | memcpy(&api.src_prefix, src_pp, sizeof(api.src_prefix)); | |
420 | } | |
8bc8de2c | 421 | SET_FLAG(api.flags, ZEBRA_FLAG_RR_USE_DISTANCE); |
6b193087 | 422 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
7e24fdf3 | 423 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); |
88fa5104 | 424 | if (pn->distance) { |
8bc8de2c | 425 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); |
88fa5104 | 426 | api.distance = pn->distance; |
8bc8de2c | 427 | } |
88fa5104 | 428 | if (pn->tag) { |
8bc8de2c | 429 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); |
88fa5104 | 430 | api.tag = pn->tag; |
8bc8de2c | 431 | } |
88fa5104 | 432 | if (pn->table_id != 0) { |
31d4a8e5 | 433 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); |
88fa5104 | 434 | api.tableid = pn->table_id; |
31d4a8e5 | 435 | } |
88fa5104 | 436 | frr_each(static_nexthop_list, &pn->nexthop_list, nh) { |
1f7ab1a2 MS |
437 | /* Don't overrun the nexthop array */ |
438 | if (nh_num == zebra_ecmp_count) | |
439 | break; | |
440 | ||
7e24fdf3 | 441 | api_nh = &api.nexthops[nh_num]; |
88fa5104 | 442 | if (nh->nh_vrf_id == VRF_UNKNOWN) |
95cdbe5d | 443 | continue; |
351ad684 RZ |
444 | /* Skip next hop which peer is down. */ |
445 | if (nh->path_down) | |
446 | continue; | |
95cdbe5d | 447 | |
88fa5104 | 448 | api_nh->vrf_id = nh->nh_vrf_id; |
449 | if (nh->onlink) | |
68a02e06 | 450 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
065276ae SM |
451 | if (nh->color != 0) { |
452 | SET_FLAG(api.message, ZAPI_MESSAGE_SRTE); | |
453 | api_nh->srte_color = nh->color; | |
454 | } | |
fe85601c | 455 | |
88fa5104 | 456 | nh->state = STATIC_SENT_TO_ZEBRA; |
9fafbd15 | 457 | |
88fa5104 | 458 | switch (nh->type) { |
7e24fdf3 | 459 | case STATIC_IFNAME: |
88fa5104 | 460 | if (nh->ifindex == IFINDEX_INTERNAL) |
7e24fdf3 | 461 | continue; |
88fa5104 | 462 | api_nh->ifindex = nh->ifindex; |
7e24fdf3 DS |
463 | api_nh->type = NEXTHOP_TYPE_IFINDEX; |
464 | break; | |
465 | case STATIC_IPV4_GATEWAY: | |
88fa5104 | 466 | if (!nh->nh_valid) |
7e24fdf3 DS |
467 | continue; |
468 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
88fa5104 | 469 | api_nh->gate = nh->addr; |
7e24fdf3 DS |
470 | break; |
471 | case STATIC_IPV4_GATEWAY_IFNAME: | |
88fa5104 | 472 | if (nh->ifindex == IFINDEX_INTERNAL) |
7e24fdf3 | 473 | continue; |
88fa5104 | 474 | api_nh->ifindex = nh->ifindex; |
7e24fdf3 | 475 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
88fa5104 | 476 | api_nh->gate = nh->addr; |
7e24fdf3 DS |
477 | break; |
478 | case STATIC_IPV6_GATEWAY: | |
88fa5104 | 479 | if (!nh->nh_valid) |
7e24fdf3 DS |
480 | continue; |
481 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
88fa5104 | 482 | api_nh->gate = nh->addr; |
7e24fdf3 DS |
483 | break; |
484 | case STATIC_IPV6_GATEWAY_IFNAME: | |
88fa5104 | 485 | if (nh->ifindex == IFINDEX_INTERNAL) |
7e24fdf3 DS |
486 | continue; |
487 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
88fa5104 | 488 | api_nh->ifindex = nh->ifindex; |
489 | api_nh->gate = nh->addr; | |
7e24fdf3 DS |
490 | break; |
491 | case STATIC_BLACKHOLE: | |
492 | api_nh->type = NEXTHOP_TYPE_BLACKHOLE; | |
88fa5104 | 493 | switch (nh->bh_type) { |
7e24fdf3 DS |
494 | case STATIC_BLACKHOLE_DROP: |
495 | case STATIC_BLACKHOLE_NULL: | |
496 | api_nh->bh_type = BLACKHOLE_NULL; | |
497 | break; | |
498 | case STATIC_BLACKHOLE_REJECT: | |
499 | api_nh->bh_type = BLACKHOLE_REJECT; | |
500 | } | |
501 | break; | |
502 | } | |
503 | ||
88fa5104 | 504 | if (nh->snh_label.num_labels) { |
7e24fdf3 DS |
505 | int i; |
506 | ||
68a02e06 | 507 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL); |
88fa5104 | 508 | api_nh->label_num = nh->snh_label.num_labels; |
7e24fdf3 | 509 | for (i = 0; i < api_nh->label_num; i++) |
88fa5104 | 510 | api_nh->labels[i] = nh->snh_label.label[i]; |
7e24fdf3 DS |
511 | } |
512 | nh_num++; | |
513 | } | |
514 | ||
515 | api.nexthop_num = nh_num; | |
516 | ||
517 | /* | |
518 | * If we have been given an install but nothing is valid | |
519 | * go ahead and delete the route for double plus fun | |
520 | */ | |
521 | if (!nh_num && install) | |
522 | install = false; | |
523 | ||
524 | zclient_route_send(install ? | |
525 | ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE, | |
526 | zclient, &api); | |
527 | } | |
138c5a74 | 528 | |
a243d1db DL |
529 | static zclient_handler *const static_handlers[] = { |
530 | [ZEBRA_INTERFACE_ADDRESS_ADD] = interface_address_add, | |
531 | [ZEBRA_INTERFACE_ADDRESS_DELETE] = interface_address_delete, | |
532 | [ZEBRA_ROUTE_NOTIFY_OWNER] = route_notify_owner, | |
533 | [ZEBRA_NEXTHOP_UPDATE] = static_zebra_nexthop_update, | |
534 | }; | |
535 | ||
7e24fdf3 DS |
536 | void static_zebra_init(void) |
537 | { | |
538 | struct zclient_options opt = { .receive_notify = true }; | |
539 | ||
138c5a74 DS |
540 | if_zapi_callbacks(static_ifp_create, static_ifp_up, |
541 | static_ifp_down, static_ifp_destroy); | |
542 | ||
a243d1db DL |
543 | zclient = zclient_new(master, &opt, static_handlers, |
544 | array_size(static_handlers)); | |
7e24fdf3 DS |
545 | |
546 | zclient_init(zclient, ZEBRA_ROUTE_STATIC, 0, &static_privs); | |
547 | zclient->zebra_capabilities = static_zebra_capabilities; | |
548 | zclient->zebra_connected = zebra_connected; | |
74f0a94e | 549 | |
50efe4be | 550 | static_nht_hash_init(static_nht_hash); |
351ad684 | 551 | static_bfd_initialize(zclient, master); |
7e24fdf3 | 552 | } |
fceb6174 | 553 | |
deca28a3 CH |
554 | /* static_zebra_stop used by tests/lib/test_grpc.cpp */ |
555 | void static_zebra_stop(void) | |
556 | { | |
50efe4be DL |
557 | static_nht_hash_clear(); |
558 | static_nht_hash_fini(static_nht_hash); | |
559 | ||
deca28a3 CH |
560 | if (!zclient) |
561 | return; | |
562 | zclient_stop(zclient); | |
563 | zclient_free(zclient); | |
564 | zclient = NULL; | |
565 | } | |
566 | ||
fceb6174 PG |
567 | void static_zebra_vrf_register(struct vrf *vrf) |
568 | { | |
569 | if (vrf->vrf_id == VRF_DEFAULT) | |
570 | return; | |
571 | zclient_send_reg_requests(zclient, vrf->vrf_id); | |
572 | } | |
573 | ||
574 | void static_zebra_vrf_unregister(struct vrf *vrf) | |
575 | { | |
576 | if (vrf->vrf_id == VRF_DEFAULT) | |
577 | return; | |
578 | zclient_send_dereg_requests(zclient, vrf->vrf_id); | |
579 | } |