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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 | |
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 | ||
a77ea81e LS |
214 | if (zclient->bfd_integration) |
215 | bfd_nht_update(&matched, &nhr); | |
216 | ||
06e4e901 | 217 | if (matched.family == AF_INET6) |
7e24fdf3 DS |
218 | afi = AFI_IP6; |
219 | ||
b1ab2876 | 220 | if (nhr.type == ZEBRA_ROUTE_CONNECT) { |
06e4e901 DS |
221 | if (static_nexthop_is_local(vrf_id, &matched, |
222 | nhr.prefix.family)) | |
b1ab2876 | 223 | nhr.nexthop_num = 0; |
224 | } | |
225 | ||
74f0a94e | 226 | memset(&lookup, 0, sizeof(lookup)); |
e203efe8 | 227 | lookup.nh = matched; |
f591b309 | 228 | lookup.nh_vrf_id = vrf_id; |
6bcc4665 | 229 | lookup.safi = nhr.safi; |
74f0a94e | 230 | |
50efe4be | 231 | nhtd = static_nht_hash_find(static_nht_hash, &lookup); |
f591b309 DS |
232 | |
233 | if (nhtd) { | |
74f0a94e DS |
234 | nhtd->nh_num = nhr.nexthop_num; |
235 | ||
6bcc4665 DL |
236 | static_nht_reset_start(&matched, afi, nhr.safi, |
237 | nhtd->nh_vrf_id); | |
06e4e901 | 238 | static_nht_update(NULL, &matched, nhr.nexthop_num, afi, |
6bcc4665 | 239 | nhr.safi, nhtd->nh_vrf_id); |
f591b309 DS |
240 | } else |
241 | zlog_err("No nhtd?"); | |
74f0a94e | 242 | |
7e24fdf3 DS |
243 | return 1; |
244 | } | |
245 | ||
246 | static void static_zebra_capabilities(struct zclient_capabilities *cap) | |
247 | { | |
248 | mpls_enabled = cap->mpls_enabled; | |
abc246e1 | 249 | zebra_ecmp_count = cap->ecmp; |
7e24fdf3 DS |
250 | } |
251 | ||
50efe4be DL |
252 | static struct static_nht_data * |
253 | static_nht_hash_getref(const struct static_nht_data *ref) | |
74f0a94e | 254 | { |
50efe4be | 255 | struct static_nht_data *nhtd; |
74f0a94e | 256 | |
50efe4be DL |
257 | nhtd = static_nht_hash_find(static_nht_hash, ref); |
258 | if (!nhtd) { | |
259 | nhtd = XCALLOC(MTYPE_STATIC_NHT_DATA, sizeof(*nhtd)); | |
74f0a94e | 260 | |
e203efe8 | 261 | prefix_copy(&nhtd->nh, &ref->nh); |
50efe4be | 262 | nhtd->nh_vrf_id = ref->nh_vrf_id; |
6bcc4665 | 263 | nhtd->safi = ref->safi; |
74f0a94e | 264 | |
50efe4be DL |
265 | static_nht_hash_add(static_nht_hash, nhtd); |
266 | } | |
f591b309 | 267 | |
50efe4be DL |
268 | nhtd->refcount++; |
269 | return nhtd; | |
74f0a94e DS |
270 | } |
271 | ||
ecb49035 | 272 | static bool static_nht_hash_decref(struct static_nht_data **nhtd_p) |
74f0a94e | 273 | { |
ecb49035 DL |
274 | struct static_nht_data *nhtd = *nhtd_p; |
275 | ||
276 | *nhtd_p = NULL; | |
277 | ||
50efe4be DL |
278 | if (--nhtd->refcount > 0) |
279 | return true; | |
74f0a94e | 280 | |
50efe4be | 281 | static_nht_hash_del(static_nht_hash, nhtd); |
50efe4be DL |
282 | XFREE(MTYPE_STATIC_NHT_DATA, nhtd); |
283 | return false; | |
74f0a94e DS |
284 | } |
285 | ||
50efe4be | 286 | static void static_nht_hash_clear(void) |
74f0a94e | 287 | { |
50efe4be | 288 | struct static_nht_data *nhtd; |
74f0a94e | 289 | |
e203efe8 | 290 | while ((nhtd = static_nht_hash_pop(static_nht_hash))) |
50efe4be | 291 | XFREE(MTYPE_STATIC_NHT_DATA, nhtd); |
74f0a94e DS |
292 | } |
293 | ||
c68cd5af DL |
294 | static bool static_zebra_nht_get_prefix(const struct static_nexthop *nh, |
295 | struct prefix *p) | |
296 | { | |
297 | switch (nh->type) { | |
298 | case STATIC_IFNAME: | |
299 | case STATIC_BLACKHOLE: | |
300 | p->family = AF_UNSPEC; | |
301 | return false; | |
302 | ||
303 | case STATIC_IPV4_GATEWAY: | |
304 | case STATIC_IPV4_GATEWAY_IFNAME: | |
305 | p->family = AF_INET; | |
306 | p->prefixlen = IPV4_MAX_BITLEN; | |
307 | p->u.prefix4 = nh->addr.ipv4; | |
308 | return true; | |
309 | ||
310 | case STATIC_IPV6_GATEWAY: | |
311 | case STATIC_IPV6_GATEWAY_IFNAME: | |
312 | p->family = AF_INET6; | |
313 | p->prefixlen = IPV6_MAX_BITLEN; | |
314 | p->u.prefix6 = nh->addr.ipv6; | |
315 | return true; | |
316 | } | |
317 | ||
318 | assertf(0, "BUG: someone forgot to add nexthop type %u", nh->type); | |
16c150f2 | 319 | return false; |
c68cd5af DL |
320 | } |
321 | ||
4067e951 | 322 | void static_zebra_nht_register(struct static_nexthop *nh, bool reg) |
7e24fdf3 | 323 | { |
4067e951 IR |
324 | struct static_path *pn = nh->pn; |
325 | struct route_node *rn = pn->rn; | |
6bcc4665 | 326 | struct static_route_info *si = static_route_info_from_rnode(rn); |
f75d3925 | 327 | struct static_nht_data *nhtd, lookup = {}; |
7e24fdf3 | 328 | uint32_t cmd; |
7e24fdf3 | 329 | |
c68cd5af | 330 | if (!static_zebra_nht_get_prefix(nh, &lookup.nh)) |
7e24fdf3 | 331 | return; |
88fa5104 | 332 | lookup.nh_vrf_id = nh->nh_vrf_id; |
6bcc4665 | 333 | lookup.safi = si->safi; |
74f0a94e | 334 | |
f75d3925 DL |
335 | if (nh->nh_registered) { |
336 | /* nh->nh_registered means we own a reference on the nhtd */ | |
337 | nhtd = static_nht_hash_find(static_nht_hash, &lookup); | |
50efe4be | 338 | |
f75d3925 DL |
339 | assertf(nhtd, "BUG: NH %pFX registered but not in hashtable", |
340 | &lookup.nh); | |
341 | } else if (reg) { | |
50efe4be | 342 | nhtd = static_nht_hash_getref(&lookup); |
74f0a94e | 343 | |
f75d3925 | 344 | if (nhtd->refcount > 1) |
f1d6b7e3 | 345 | DEBUGD(&static_dbg_route, |
f75d3925 | 346 | "Reusing registered nexthop(%pFX) for %pRN %d", |
c68cd5af | 347 | &lookup.nh, rn, nhtd->nh_num); |
f75d3925 DL |
348 | } else { |
349 | /* !reg && !nh->nh_registered */ | |
350 | zlog_warn("trying to unregister nexthop %pFX twice", | |
351 | &lookup.nh); | |
352 | return; | |
353 | } | |
c68cd5af | 354 | |
f75d3925 | 355 | nh->nh_registered = reg; |
ecb49035 | 356 | |
f75d3925 DL |
357 | if (reg) { |
358 | if (nhtd->nh_num) { | |
359 | /* refresh with existing data */ | |
360 | afi_t afi = prefix_afi(&lookup.nh); | |
361 | ||
362 | if (nh->state == STATIC_NOT_INSTALLED) | |
363 | nh->state = STATIC_START; | |
364 | static_nht_update(&rn->p, &nhtd->nh, nhtd->nh_num, afi, | |
365 | si->safi, nh->nh_vrf_id); | |
366 | return; | |
74f0a94e | 367 | } |
ecb49035 | 368 | |
f75d3925 DL |
369 | if (nhtd->registered) |
370 | /* have no data, but did send register */ | |
371 | return; | |
372 | ||
ecb49035 DL |
373 | cmd = ZEBRA_NEXTHOP_REGISTER; |
374 | DEBUGD(&static_dbg_route, "Registering nexthop(%pFX) for %pRN", | |
375 | &lookup.nh, rn); | |
74f0a94e | 376 | } else { |
f75d3925 | 377 | bool was_zebra_registered; |
50efe4be | 378 | |
f75d3925 | 379 | was_zebra_registered = nhtd->registered; |
ecb49035 DL |
380 | if (static_nht_hash_decref(&nhtd)) |
381 | /* still got references alive */ | |
74f0a94e | 382 | return; |
74f0a94e | 383 | |
f75d3925 DL |
384 | /* NB: nhtd is now NULL. */ |
385 | if (!was_zebra_registered) | |
ecb49035 DL |
386 | return; |
387 | ||
388 | cmd = ZEBRA_NEXTHOP_UNREGISTER; | |
389 | DEBUGD(&static_dbg_route, | |
390 | "Unregistering nexthop(%pFX) for %pRN", &lookup.nh, rn); | |
391 | } | |
f1d6b7e3 | 392 | |
c68cd5af | 393 | if (zclient_send_rnh(zclient, cmd, &lookup.nh, si->safi, false, false, |
eb3c9d97 | 394 | nh->nh_vrf_id) == ZCLIENT_SEND_FAILURE) |
ecb49035 DL |
395 | zlog_warn("%s: Failure to send nexthop %pFX for %pRN to zebra", |
396 | __func__, &lookup.nh, rn); | |
f75d3925 DL |
397 | else if (reg) |
398 | nhtd->registered = true; | |
88fa5104 | 399 | } |
7e24fdf3 | 400 | |
4067e951 | 401 | extern void static_zebra_route_add(struct static_path *pn, bool install) |
7e24fdf3 | 402 | { |
4067e951 IR |
403 | struct route_node *rn = pn->rn; |
404 | struct static_route_info *si = rn->info; | |
88fa5104 | 405 | struct static_nexthop *nh; |
7e24fdf3 DS |
406 | const struct prefix *p, *src_pp; |
407 | struct zapi_nexthop *api_nh; | |
408 | struct zapi_route api; | |
409 | uint32_t nh_num = 0; | |
410 | ||
411 | p = src_pp = NULL; | |
412 | srcdest_rnode_prefixes(rn, &p, &src_pp); | |
413 | ||
414 | memset(&api, 0, sizeof(api)); | |
4067e951 | 415 | api.vrf_id = si->svrf->vrf->vrf_id; |
7e24fdf3 | 416 | api.type = ZEBRA_ROUTE_STATIC; |
4067e951 | 417 | api.safi = si->safi; |
7e24fdf3 DS |
418 | memcpy(&api.prefix, p, sizeof(api.prefix)); |
419 | ||
420 | if (src_pp) { | |
421 | SET_FLAG(api.message, ZAPI_MESSAGE_SRCPFX); | |
422 | memcpy(&api.src_prefix, src_pp, sizeof(api.src_prefix)); | |
423 | } | |
8bc8de2c | 424 | SET_FLAG(api.flags, ZEBRA_FLAG_RR_USE_DISTANCE); |
6b193087 | 425 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
7e24fdf3 | 426 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); |
88fa5104 | 427 | if (pn->distance) { |
8bc8de2c | 428 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); |
88fa5104 | 429 | api.distance = pn->distance; |
8bc8de2c | 430 | } |
88fa5104 | 431 | if (pn->tag) { |
8bc8de2c | 432 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); |
88fa5104 | 433 | api.tag = pn->tag; |
8bc8de2c | 434 | } |
88fa5104 | 435 | if (pn->table_id != 0) { |
31d4a8e5 | 436 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); |
88fa5104 | 437 | api.tableid = pn->table_id; |
31d4a8e5 | 438 | } |
88fa5104 | 439 | frr_each(static_nexthop_list, &pn->nexthop_list, nh) { |
1f7ab1a2 MS |
440 | /* Don't overrun the nexthop array */ |
441 | if (nh_num == zebra_ecmp_count) | |
442 | break; | |
443 | ||
7e24fdf3 | 444 | api_nh = &api.nexthops[nh_num]; |
88fa5104 | 445 | if (nh->nh_vrf_id == VRF_UNKNOWN) |
95cdbe5d | 446 | continue; |
351ad684 RZ |
447 | /* Skip next hop which peer is down. */ |
448 | if (nh->path_down) | |
449 | continue; | |
95cdbe5d | 450 | |
88fa5104 | 451 | api_nh->vrf_id = nh->nh_vrf_id; |
452 | if (nh->onlink) | |
68a02e06 | 453 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
065276ae SM |
454 | if (nh->color != 0) { |
455 | SET_FLAG(api.message, ZAPI_MESSAGE_SRTE); | |
456 | api_nh->srte_color = nh->color; | |
457 | } | |
fe85601c | 458 | |
88fa5104 | 459 | nh->state = STATIC_SENT_TO_ZEBRA; |
9fafbd15 | 460 | |
88fa5104 | 461 | switch (nh->type) { |
7e24fdf3 | 462 | case STATIC_IFNAME: |
88fa5104 | 463 | if (nh->ifindex == IFINDEX_INTERNAL) |
7e24fdf3 | 464 | continue; |
88fa5104 | 465 | api_nh->ifindex = nh->ifindex; |
7e24fdf3 DS |
466 | api_nh->type = NEXTHOP_TYPE_IFINDEX; |
467 | break; | |
468 | case STATIC_IPV4_GATEWAY: | |
88fa5104 | 469 | if (!nh->nh_valid) |
7e24fdf3 DS |
470 | continue; |
471 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
88fa5104 | 472 | api_nh->gate = nh->addr; |
7e24fdf3 DS |
473 | break; |
474 | case STATIC_IPV4_GATEWAY_IFNAME: | |
88fa5104 | 475 | if (nh->ifindex == IFINDEX_INTERNAL) |
7e24fdf3 | 476 | continue; |
88fa5104 | 477 | api_nh->ifindex = nh->ifindex; |
7e24fdf3 | 478 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
88fa5104 | 479 | api_nh->gate = nh->addr; |
7e24fdf3 DS |
480 | break; |
481 | case STATIC_IPV6_GATEWAY: | |
88fa5104 | 482 | if (!nh->nh_valid) |
7e24fdf3 DS |
483 | continue; |
484 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
88fa5104 | 485 | api_nh->gate = nh->addr; |
7e24fdf3 DS |
486 | break; |
487 | case STATIC_IPV6_GATEWAY_IFNAME: | |
88fa5104 | 488 | if (nh->ifindex == IFINDEX_INTERNAL) |
7e24fdf3 DS |
489 | continue; |
490 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
88fa5104 | 491 | api_nh->ifindex = nh->ifindex; |
492 | api_nh->gate = nh->addr; | |
7e24fdf3 DS |
493 | break; |
494 | case STATIC_BLACKHOLE: | |
495 | api_nh->type = NEXTHOP_TYPE_BLACKHOLE; | |
88fa5104 | 496 | switch (nh->bh_type) { |
7e24fdf3 DS |
497 | case STATIC_BLACKHOLE_DROP: |
498 | case STATIC_BLACKHOLE_NULL: | |
499 | api_nh->bh_type = BLACKHOLE_NULL; | |
500 | break; | |
501 | case STATIC_BLACKHOLE_REJECT: | |
502 | api_nh->bh_type = BLACKHOLE_REJECT; | |
503 | } | |
504 | break; | |
505 | } | |
506 | ||
88fa5104 | 507 | if (nh->snh_label.num_labels) { |
7e24fdf3 DS |
508 | int i; |
509 | ||
68a02e06 | 510 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL); |
88fa5104 | 511 | api_nh->label_num = nh->snh_label.num_labels; |
7e24fdf3 | 512 | for (i = 0; i < api_nh->label_num; i++) |
88fa5104 | 513 | api_nh->labels[i] = nh->snh_label.label[i]; |
7e24fdf3 DS |
514 | } |
515 | nh_num++; | |
516 | } | |
517 | ||
518 | api.nexthop_num = nh_num; | |
519 | ||
520 | /* | |
521 | * If we have been given an install but nothing is valid | |
522 | * go ahead and delete the route for double plus fun | |
523 | */ | |
524 | if (!nh_num && install) | |
525 | install = false; | |
526 | ||
527 | zclient_route_send(install ? | |
528 | ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE, | |
529 | zclient, &api); | |
530 | } | |
138c5a74 | 531 | |
a243d1db DL |
532 | static zclient_handler *const static_handlers[] = { |
533 | [ZEBRA_INTERFACE_ADDRESS_ADD] = interface_address_add, | |
534 | [ZEBRA_INTERFACE_ADDRESS_DELETE] = interface_address_delete, | |
535 | [ZEBRA_ROUTE_NOTIFY_OWNER] = route_notify_owner, | |
536 | [ZEBRA_NEXTHOP_UPDATE] = static_zebra_nexthop_update, | |
537 | }; | |
538 | ||
7e24fdf3 DS |
539 | void static_zebra_init(void) |
540 | { | |
541 | struct zclient_options opt = { .receive_notify = true }; | |
542 | ||
138c5a74 DS |
543 | if_zapi_callbacks(static_ifp_create, static_ifp_up, |
544 | static_ifp_down, static_ifp_destroy); | |
545 | ||
a243d1db DL |
546 | zclient = zclient_new(master, &opt, static_handlers, |
547 | array_size(static_handlers)); | |
7e24fdf3 DS |
548 | |
549 | zclient_init(zclient, ZEBRA_ROUTE_STATIC, 0, &static_privs); | |
550 | zclient->zebra_capabilities = static_zebra_capabilities; | |
551 | zclient->zebra_connected = zebra_connected; | |
74f0a94e | 552 | |
50efe4be | 553 | static_nht_hash_init(static_nht_hash); |
351ad684 | 554 | static_bfd_initialize(zclient, master); |
7e24fdf3 | 555 | } |
fceb6174 | 556 | |
deca28a3 CH |
557 | /* static_zebra_stop used by tests/lib/test_grpc.cpp */ |
558 | void static_zebra_stop(void) | |
559 | { | |
50efe4be DL |
560 | static_nht_hash_clear(); |
561 | static_nht_hash_fini(static_nht_hash); | |
562 | ||
deca28a3 CH |
563 | if (!zclient) |
564 | return; | |
565 | zclient_stop(zclient); | |
566 | zclient_free(zclient); | |
567 | zclient = NULL; | |
568 | } | |
569 | ||
fceb6174 PG |
570 | void static_zebra_vrf_register(struct vrf *vrf) |
571 | { | |
572 | if (vrf->vrf_id == VRF_DEFAULT) | |
573 | return; | |
574 | zclient_send_reg_requests(zclient, vrf->vrf_id); | |
575 | } | |
576 | ||
577 | void static_zebra_vrf_unregister(struct vrf *vrf) | |
578 | { | |
579 | if (vrf->vrf_id == VRF_DEFAULT) | |
580 | return; | |
581 | zclient_send_dereg_requests(zclient, vrf->vrf_id); | |
582 | } |