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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 | ||
53 | struct prefix *nh; | |
54 | ||
55 | vrf_id_t nh_vrf_id; | |
56 | ||
57 | uint32_t refcount; | |
58 | uint8_t nh_num; | |
59 | }; | |
60 | ||
61 | static int static_nht_data_cmp(const struct static_nht_data *nhtd1, | |
62 | const struct static_nht_data *nhtd2) | |
63 | { | |
64 | if (nhtd1->nh_vrf_id != nhtd2->nh_vrf_id) | |
65 | return numcmp(nhtd1->nh_vrf_id, nhtd2->nh_vrf_id); | |
66 | ||
67 | return prefix_cmp(nhtd1->nh, nhtd2->nh); | |
68 | } | |
69 | ||
70 | static unsigned int static_nht_data_hash(const struct static_nht_data *nhtd) | |
71 | { | |
72 | unsigned int key = 0; | |
73 | ||
74 | key = prefix_hash_key(nhtd->nh); | |
75 | return jhash_1word(nhtd->nh_vrf_id, key); | |
76 | } | |
77 | ||
78 | DECLARE_HASH(static_nht_hash, struct static_nht_data, itm, static_nht_data_cmp, | |
79 | static_nht_data_hash); | |
80 | ||
81 | static struct static_nht_hash_head static_nht_hash[1]; | |
82 | ||
7e24fdf3 DS |
83 | /* Zebra structure to hold current status. */ |
84 | struct zclient *zclient; | |
7c1e76aa | 85 | uint32_t zebra_ecmp_count = MULTIPATH_NUM; |
7e24fdf3 | 86 | |
7e24fdf3 | 87 | /* Inteface addition message from zebra. */ |
ef7bd2a3 | 88 | static int static_ifp_create(struct interface *ifp) |
7e24fdf3 | 89 | { |
7e24fdf3 | 90 | static_ifindex_update(ifp, true); |
ef7bd2a3 | 91 | |
7e24fdf3 DS |
92 | return 0; |
93 | } | |
94 | ||
3c3c3252 | 95 | static int static_ifp_destroy(struct interface *ifp) |
7e24fdf3 | 96 | { |
7e24fdf3 DS |
97 | static_ifindex_update(ifp, false); |
98 | return 0; | |
99 | } | |
100 | ||
121f9dee | 101 | static int interface_address_add(ZAPI_CALLBACK_ARGS) |
7e24fdf3 | 102 | { |
121f9dee | 103 | zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
7e24fdf3 DS |
104 | |
105 | return 0; | |
106 | } | |
107 | ||
121f9dee | 108 | static int interface_address_delete(ZAPI_CALLBACK_ARGS) |
7e24fdf3 DS |
109 | { |
110 | struct connected *c; | |
111 | ||
121f9dee | 112 | c = zebra_interface_address_read(cmd, zclient->ibuf, vrf_id); |
7e24fdf3 DS |
113 | |
114 | if (!c) | |
115 | return 0; | |
116 | ||
721c0857 | 117 | connected_free(&c); |
7e24fdf3 DS |
118 | return 0; |
119 | } | |
120 | ||
ddbf3e60 | 121 | static int static_ifp_up(struct interface *ifp) |
7e24fdf3 | 122 | { |
ddbf3e60 DS |
123 | /* Install any static reliant on this interface coming up */ |
124 | static_install_intf_nh(ifp); | |
125 | static_ifindex_update(ifp, true); | |
126 | ||
7e24fdf3 DS |
127 | return 0; |
128 | } | |
129 | ||
b0b69e59 | 130 | static int static_ifp_down(struct interface *ifp) |
7e24fdf3 | 131 | { |
b0b69e59 | 132 | static_ifindex_update(ifp, false); |
7e24fdf3 DS |
133 | |
134 | return 0; | |
135 | } | |
136 | ||
121f9dee | 137 | static int route_notify_owner(ZAPI_CALLBACK_ARGS) |
7e24fdf3 DS |
138 | { |
139 | struct prefix p; | |
140 | enum zapi_route_notify_owner note; | |
141 | uint32_t table_id; | |
7e24fdf3 | 142 | |
77b38a4a S |
143 | if (!zapi_route_notify_decode(zclient->ibuf, &p, &table_id, ¬e, |
144 | NULL, NULL)) | |
7e24fdf3 DS |
145 | return -1; |
146 | ||
147 | switch (note) { | |
148 | case ZAPI_ROUTE_FAIL_INSTALL: | |
9fafbd15 | 149 | static_nht_mark_state(&p, vrf_id, STATIC_NOT_INSTALLED); |
2dbe669b DA |
150 | zlog_warn("%s: Route %pFX failed to install for table: %u", |
151 | __func__, &p, table_id); | |
7e24fdf3 DS |
152 | break; |
153 | case ZAPI_ROUTE_BETTER_ADMIN_WON: | |
9fafbd15 | 154 | static_nht_mark_state(&p, vrf_id, STATIC_NOT_INSTALLED); |
15569c58 | 155 | zlog_warn( |
2dbe669b DA |
156 | "%s: Route %pFX over-ridden by better route for table: %u", |
157 | __func__, &p, table_id); | |
7e24fdf3 DS |
158 | break; |
159 | case ZAPI_ROUTE_INSTALLED: | |
9fafbd15 | 160 | static_nht_mark_state(&p, vrf_id, STATIC_INSTALLED); |
7e24fdf3 DS |
161 | break; |
162 | case ZAPI_ROUTE_REMOVED: | |
9fafbd15 | 163 | static_nht_mark_state(&p, vrf_id, STATIC_NOT_INSTALLED); |
7e24fdf3 DS |
164 | break; |
165 | case ZAPI_ROUTE_REMOVE_FAIL: | |
9fafbd15 | 166 | static_nht_mark_state(&p, vrf_id, STATIC_INSTALLED); |
2dbe669b DA |
167 | zlog_warn("%s: Route %pFX failure to remove for table: %u", |
168 | __func__, &p, table_id); | |
7e24fdf3 DS |
169 | break; |
170 | } | |
171 | ||
172 | return 0; | |
173 | } | |
174 | static void zebra_connected(struct zclient *zclient) | |
175 | { | |
176 | zclient_send_reg_requests(zclient, VRF_DEFAULT); | |
177 | } | |
178 | ||
b1ab2876 | 179 | /* API to check whether the configured nexthop address is |
180 | * one of its local connected address or not. | |
181 | */ | |
182 | static bool | |
183 | static_nexthop_is_local(vrf_id_t vrfid, struct prefix *addr, int family) | |
184 | { | |
185 | if (family == AF_INET) { | |
1e9044be | 186 | if (if_address_is_local(&addr->u.prefix4, AF_INET, vrfid)) |
b1ab2876 | 187 | return true; |
188 | } else if (family == AF_INET6) { | |
1e9044be | 189 | if (if_address_is_local(&addr->u.prefix6, AF_INET6, vrfid)) |
b1ab2876 | 190 | return true; |
191 | } | |
192 | return false; | |
193 | } | |
121f9dee | 194 | static int static_zebra_nexthop_update(ZAPI_CALLBACK_ARGS) |
7e24fdf3 | 195 | { |
74f0a94e | 196 | struct static_nht_data *nhtd, lookup; |
7e24fdf3 | 197 | struct zapi_route nhr; |
06e4e901 | 198 | struct prefix matched; |
7e24fdf3 DS |
199 | afi_t afi = AFI_IP; |
200 | ||
06e4e901 | 201 | if (!zapi_nexthop_update_decode(zclient->ibuf, &matched, &nhr)) { |
6c83dded | 202 | zlog_err("Failure to decode nexthop update message"); |
7e24fdf3 DS |
203 | return 1; |
204 | } | |
205 | ||
06e4e901 | 206 | if (matched.family == AF_INET6) |
7e24fdf3 DS |
207 | afi = AFI_IP6; |
208 | ||
b1ab2876 | 209 | if (nhr.type == ZEBRA_ROUTE_CONNECT) { |
06e4e901 DS |
210 | if (static_nexthop_is_local(vrf_id, &matched, |
211 | nhr.prefix.family)) | |
b1ab2876 | 212 | nhr.nexthop_num = 0; |
213 | } | |
214 | ||
74f0a94e | 215 | memset(&lookup, 0, sizeof(lookup)); |
06e4e901 | 216 | lookup.nh = &matched; |
f591b309 | 217 | lookup.nh_vrf_id = vrf_id; |
74f0a94e | 218 | |
50efe4be | 219 | nhtd = static_nht_hash_find(static_nht_hash, &lookup); |
f591b309 DS |
220 | |
221 | if (nhtd) { | |
74f0a94e DS |
222 | nhtd->nh_num = nhr.nexthop_num; |
223 | ||
06e4e901 DS |
224 | static_nht_reset_start(&matched, afi, nhtd->nh_vrf_id); |
225 | static_nht_update(NULL, &matched, nhr.nexthop_num, afi, | |
f591b309 DS |
226 | nhtd->nh_vrf_id); |
227 | } else | |
228 | zlog_err("No nhtd?"); | |
74f0a94e | 229 | |
7e24fdf3 DS |
230 | return 1; |
231 | } | |
232 | ||
233 | static void static_zebra_capabilities(struct zclient_capabilities *cap) | |
234 | { | |
235 | mpls_enabled = cap->mpls_enabled; | |
abc246e1 | 236 | zebra_ecmp_count = cap->ecmp; |
7e24fdf3 DS |
237 | } |
238 | ||
50efe4be DL |
239 | static struct static_nht_data * |
240 | static_nht_hash_getref(const struct static_nht_data *ref) | |
74f0a94e | 241 | { |
50efe4be | 242 | struct static_nht_data *nhtd; |
74f0a94e | 243 | |
50efe4be DL |
244 | nhtd = static_nht_hash_find(static_nht_hash, ref); |
245 | if (!nhtd) { | |
246 | nhtd = XCALLOC(MTYPE_STATIC_NHT_DATA, sizeof(*nhtd)); | |
74f0a94e | 247 | |
50efe4be DL |
248 | nhtd->nh = prefix_new(); |
249 | prefix_copy(nhtd->nh, ref->nh); | |
250 | nhtd->nh_vrf_id = ref->nh_vrf_id; | |
74f0a94e | 251 | |
50efe4be DL |
252 | static_nht_hash_add(static_nht_hash, nhtd); |
253 | } | |
f591b309 | 254 | |
50efe4be DL |
255 | nhtd->refcount++; |
256 | return nhtd; | |
74f0a94e DS |
257 | } |
258 | ||
50efe4be | 259 | static bool static_nht_hash_decref(struct static_nht_data *nhtd) |
74f0a94e | 260 | { |
50efe4be DL |
261 | if (--nhtd->refcount > 0) |
262 | return true; | |
74f0a94e | 263 | |
50efe4be DL |
264 | static_nht_hash_del(static_nht_hash, nhtd); |
265 | prefix_free(&nhtd->nh); | |
266 | XFREE(MTYPE_STATIC_NHT_DATA, nhtd); | |
267 | return false; | |
74f0a94e DS |
268 | } |
269 | ||
50efe4be | 270 | static void static_nht_hash_clear(void) |
74f0a94e | 271 | { |
50efe4be | 272 | struct static_nht_data *nhtd; |
74f0a94e | 273 | |
50efe4be DL |
274 | while ((nhtd = static_nht_hash_pop(static_nht_hash))) { |
275 | prefix_free(&nhtd->nh); | |
276 | XFREE(MTYPE_STATIC_NHT_DATA, nhtd); | |
277 | } | |
74f0a94e DS |
278 | } |
279 | ||
4067e951 | 280 | void static_zebra_nht_register(struct static_nexthop *nh, bool reg) |
7e24fdf3 | 281 | { |
4067e951 IR |
282 | struct static_path *pn = nh->pn; |
283 | struct route_node *rn = pn->rn; | |
50efe4be | 284 | struct static_nht_data lookup; |
7e24fdf3 DS |
285 | uint32_t cmd; |
286 | struct prefix p; | |
74f0a94e | 287 | afi_t afi = AFI_IP; |
7e24fdf3 DS |
288 | |
289 | cmd = (reg) ? | |
290 | ZEBRA_NEXTHOP_REGISTER : ZEBRA_NEXTHOP_UNREGISTER; | |
291 | ||
88fa5104 | 292 | if (nh->nh_registered && reg) |
7e24fdf3 DS |
293 | return; |
294 | ||
88fa5104 | 295 | if (!nh->nh_registered && !reg) |
7e24fdf3 DS |
296 | return; |
297 | ||
298 | memset(&p, 0, sizeof(p)); | |
88fa5104 | 299 | switch (nh->type) { |
7e24fdf3 DS |
300 | case STATIC_IFNAME: |
301 | case STATIC_BLACKHOLE: | |
7e24fdf3 DS |
302 | return; |
303 | case STATIC_IPV4_GATEWAY: | |
88a90016 | 304 | case STATIC_IPV4_GATEWAY_IFNAME: |
7e24fdf3 DS |
305 | p.family = AF_INET; |
306 | p.prefixlen = IPV4_MAX_BITLEN; | |
88fa5104 | 307 | p.u.prefix4 = nh->addr.ipv4; |
74f0a94e | 308 | afi = AFI_IP; |
7e24fdf3 DS |
309 | break; |
310 | case STATIC_IPV6_GATEWAY: | |
88a90016 | 311 | case STATIC_IPV6_GATEWAY_IFNAME: |
7e24fdf3 DS |
312 | p.family = AF_INET6; |
313 | p.prefixlen = IPV6_MAX_BITLEN; | |
88fa5104 | 314 | p.u.prefix6 = nh->addr.ipv6; |
74f0a94e | 315 | afi = AFI_IP6; |
7e24fdf3 DS |
316 | break; |
317 | } | |
318 | ||
74f0a94e DS |
319 | memset(&lookup, 0, sizeof(lookup)); |
320 | lookup.nh = &p; | |
88fa5104 | 321 | lookup.nh_vrf_id = nh->nh_vrf_id; |
74f0a94e | 322 | |
88fa5104 | 323 | nh->nh_registered = reg; |
74f0a94e DS |
324 | |
325 | if (reg) { | |
50efe4be DL |
326 | struct static_nht_data *nhtd; |
327 | ||
328 | nhtd = static_nht_hash_getref(&lookup); | |
74f0a94e | 329 | |
f1d6b7e3 XL |
330 | if (nhtd->refcount > 1) { |
331 | DEBUGD(&static_dbg_route, | |
332 | "Already registered nexthop(%pFX) for %pRN %d", | |
333 | &p, rn, nhtd->nh_num); | |
334 | if (nhtd->nh_num) | |
335 | static_nht_update(&rn->p, nhtd->nh, | |
336 | nhtd->nh_num, afi, | |
337 | nh->nh_vrf_id); | |
74f0a94e DS |
338 | return; |
339 | } | |
340 | } else { | |
50efe4be DL |
341 | struct static_nht_data *nhtd; |
342 | ||
343 | nhtd = static_nht_hash_find(static_nht_hash, &lookup); | |
74f0a94e DS |
344 | if (!nhtd) |
345 | return; | |
50efe4be | 346 | if (static_nht_hash_decref(nhtd)) |
74f0a94e | 347 | return; |
74f0a94e DS |
348 | } |
349 | ||
f1d6b7e3 XL |
350 | DEBUGD(&static_dbg_route, "%s nexthop(%pFX) for %pRN", |
351 | reg ? "Registering" : "Unregistering", &p, rn); | |
352 | ||
eb3c9d97 DL |
353 | if (zclient_send_rnh(zclient, cmd, &p, SAFI_UNICAST, false, false, |
354 | nh->nh_vrf_id) == ZCLIENT_SEND_FAILURE) | |
15569c58 | 355 | zlog_warn("%s: Failure to send nexthop to zebra", __func__); |
7e24fdf3 | 356 | } |
88fa5104 | 357 | /* |
358 | * When nexthop gets updated via configuration then use the | |
359 | * already registered NH and resend the route to zebra | |
360 | */ | |
4067e951 | 361 | int static_zebra_nh_update(struct static_nexthop *nh) |
88fa5104 | 362 | { |
4067e951 IR |
363 | struct static_path *pn = nh->pn; |
364 | struct route_node *rn = pn->rn; | |
88fa5104 | 365 | struct static_nht_data *nhtd, lookup = {}; |
366 | struct prefix p = {}; | |
367 | afi_t afi = AFI_IP; | |
368 | ||
369 | if (!nh->nh_registered) | |
370 | return 0; | |
371 | ||
372 | switch (nh->type) { | |
373 | case STATIC_IFNAME: | |
374 | case STATIC_BLACKHOLE: | |
375 | return 0; | |
376 | case STATIC_IPV4_GATEWAY: | |
377 | case STATIC_IPV4_GATEWAY_IFNAME: | |
378 | p.family = AF_INET; | |
379 | p.prefixlen = IPV4_MAX_BITLEN; | |
380 | p.u.prefix4 = nh->addr.ipv4; | |
381 | afi = AFI_IP; | |
382 | break; | |
383 | case STATIC_IPV6_GATEWAY: | |
384 | case STATIC_IPV6_GATEWAY_IFNAME: | |
385 | p.family = AF_INET6; | |
386 | p.prefixlen = IPV6_MAX_BITLEN; | |
387 | p.u.prefix6 = nh->addr.ipv6; | |
388 | afi = AFI_IP6; | |
389 | break; | |
390 | } | |
391 | ||
392 | lookup.nh = &p; | |
393 | lookup.nh_vrf_id = nh->nh_vrf_id; | |
394 | ||
50efe4be | 395 | nhtd = static_nht_hash_find(static_nht_hash, &lookup); |
88fa5104 | 396 | if (nhtd && nhtd->nh_num) { |
397 | nh->state = STATIC_START; | |
398 | static_nht_update(&rn->p, nhtd->nh, nhtd->nh_num, afi, | |
399 | nh->nh_vrf_id); | |
400 | return 1; | |
401 | } | |
402 | return 0; | |
403 | } | |
7e24fdf3 | 404 | |
4067e951 | 405 | extern void static_zebra_route_add(struct static_path *pn, bool install) |
7e24fdf3 | 406 | { |
4067e951 IR |
407 | struct route_node *rn = pn->rn; |
408 | struct static_route_info *si = rn->info; | |
88fa5104 | 409 | struct static_nexthop *nh; |
7e24fdf3 DS |
410 | const struct prefix *p, *src_pp; |
411 | struct zapi_nexthop *api_nh; | |
412 | struct zapi_route api; | |
413 | uint32_t nh_num = 0; | |
414 | ||
415 | p = src_pp = NULL; | |
416 | srcdest_rnode_prefixes(rn, &p, &src_pp); | |
417 | ||
418 | memset(&api, 0, sizeof(api)); | |
4067e951 | 419 | api.vrf_id = si->svrf->vrf->vrf_id; |
7e24fdf3 | 420 | api.type = ZEBRA_ROUTE_STATIC; |
4067e951 | 421 | api.safi = si->safi; |
7e24fdf3 DS |
422 | memcpy(&api.prefix, p, sizeof(api.prefix)); |
423 | ||
424 | if (src_pp) { | |
425 | SET_FLAG(api.message, ZAPI_MESSAGE_SRCPFX); | |
426 | memcpy(&api.src_prefix, src_pp, sizeof(api.src_prefix)); | |
427 | } | |
8bc8de2c | 428 | SET_FLAG(api.flags, ZEBRA_FLAG_RR_USE_DISTANCE); |
6b193087 | 429 | SET_FLAG(api.flags, ZEBRA_FLAG_ALLOW_RECURSION); |
7e24fdf3 | 430 | SET_FLAG(api.message, ZAPI_MESSAGE_NEXTHOP); |
88fa5104 | 431 | if (pn->distance) { |
8bc8de2c | 432 | SET_FLAG(api.message, ZAPI_MESSAGE_DISTANCE); |
88fa5104 | 433 | api.distance = pn->distance; |
8bc8de2c | 434 | } |
88fa5104 | 435 | if (pn->tag) { |
8bc8de2c | 436 | SET_FLAG(api.message, ZAPI_MESSAGE_TAG); |
88fa5104 | 437 | api.tag = pn->tag; |
8bc8de2c | 438 | } |
88fa5104 | 439 | if (pn->table_id != 0) { |
31d4a8e5 | 440 | SET_FLAG(api.message, ZAPI_MESSAGE_TABLEID); |
88fa5104 | 441 | api.tableid = pn->table_id; |
31d4a8e5 | 442 | } |
88fa5104 | 443 | frr_each(static_nexthop_list, &pn->nexthop_list, nh) { |
1f7ab1a2 MS |
444 | /* Don't overrun the nexthop array */ |
445 | if (nh_num == zebra_ecmp_count) | |
446 | break; | |
447 | ||
7e24fdf3 | 448 | api_nh = &api.nexthops[nh_num]; |
88fa5104 | 449 | if (nh->nh_vrf_id == VRF_UNKNOWN) |
95cdbe5d DS |
450 | continue; |
451 | ||
88fa5104 | 452 | api_nh->vrf_id = nh->nh_vrf_id; |
453 | if (nh->onlink) | |
68a02e06 | 454 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_ONLINK); |
065276ae SM |
455 | if (nh->color != 0) { |
456 | SET_FLAG(api.message, ZAPI_MESSAGE_SRTE); | |
457 | api_nh->srte_color = nh->color; | |
458 | } | |
fe85601c | 459 | |
88fa5104 | 460 | nh->state = STATIC_SENT_TO_ZEBRA; |
9fafbd15 | 461 | |
88fa5104 | 462 | switch (nh->type) { |
7e24fdf3 | 463 | case STATIC_IFNAME: |
88fa5104 | 464 | if (nh->ifindex == IFINDEX_INTERNAL) |
7e24fdf3 | 465 | continue; |
88fa5104 | 466 | api_nh->ifindex = nh->ifindex; |
7e24fdf3 DS |
467 | api_nh->type = NEXTHOP_TYPE_IFINDEX; |
468 | break; | |
469 | case STATIC_IPV4_GATEWAY: | |
88fa5104 | 470 | if (!nh->nh_valid) |
7e24fdf3 DS |
471 | continue; |
472 | api_nh->type = NEXTHOP_TYPE_IPV4; | |
88fa5104 | 473 | api_nh->gate = nh->addr; |
7e24fdf3 DS |
474 | break; |
475 | case STATIC_IPV4_GATEWAY_IFNAME: | |
88fa5104 | 476 | if (nh->ifindex == IFINDEX_INTERNAL) |
7e24fdf3 | 477 | continue; |
88fa5104 | 478 | api_nh->ifindex = nh->ifindex; |
7e24fdf3 | 479 | api_nh->type = NEXTHOP_TYPE_IPV4_IFINDEX; |
88fa5104 | 480 | api_nh->gate = nh->addr; |
7e24fdf3 DS |
481 | break; |
482 | case STATIC_IPV6_GATEWAY: | |
88fa5104 | 483 | if (!nh->nh_valid) |
7e24fdf3 DS |
484 | continue; |
485 | api_nh->type = NEXTHOP_TYPE_IPV6; | |
88fa5104 | 486 | api_nh->gate = nh->addr; |
7e24fdf3 DS |
487 | break; |
488 | case STATIC_IPV6_GATEWAY_IFNAME: | |
88fa5104 | 489 | if (nh->ifindex == IFINDEX_INTERNAL) |
7e24fdf3 DS |
490 | continue; |
491 | api_nh->type = NEXTHOP_TYPE_IPV6_IFINDEX; | |
88fa5104 | 492 | api_nh->ifindex = nh->ifindex; |
493 | api_nh->gate = nh->addr; | |
7e24fdf3 DS |
494 | break; |
495 | case STATIC_BLACKHOLE: | |
496 | api_nh->type = NEXTHOP_TYPE_BLACKHOLE; | |
88fa5104 | 497 | switch (nh->bh_type) { |
7e24fdf3 DS |
498 | case STATIC_BLACKHOLE_DROP: |
499 | case STATIC_BLACKHOLE_NULL: | |
500 | api_nh->bh_type = BLACKHOLE_NULL; | |
501 | break; | |
502 | case STATIC_BLACKHOLE_REJECT: | |
503 | api_nh->bh_type = BLACKHOLE_REJECT; | |
504 | } | |
505 | break; | |
506 | } | |
507 | ||
88fa5104 | 508 | if (nh->snh_label.num_labels) { |
7e24fdf3 DS |
509 | int i; |
510 | ||
68a02e06 | 511 | SET_FLAG(api_nh->flags, ZAPI_NEXTHOP_FLAG_LABEL); |
88fa5104 | 512 | api_nh->label_num = nh->snh_label.num_labels; |
7e24fdf3 | 513 | for (i = 0; i < api_nh->label_num; i++) |
88fa5104 | 514 | api_nh->labels[i] = nh->snh_label.label[i]; |
7e24fdf3 DS |
515 | } |
516 | nh_num++; | |
517 | } | |
518 | ||
519 | api.nexthop_num = nh_num; | |
520 | ||
521 | /* | |
522 | * If we have been given an install but nothing is valid | |
523 | * go ahead and delete the route for double plus fun | |
524 | */ | |
525 | if (!nh_num && install) | |
526 | install = false; | |
527 | ||
528 | zclient_route_send(install ? | |
529 | ZEBRA_ROUTE_ADD : ZEBRA_ROUTE_DELETE, | |
530 | zclient, &api); | |
531 | } | |
138c5a74 | 532 | |
a243d1db DL |
533 | static zclient_handler *const static_handlers[] = { |
534 | [ZEBRA_INTERFACE_ADDRESS_ADD] = interface_address_add, | |
535 | [ZEBRA_INTERFACE_ADDRESS_DELETE] = interface_address_delete, | |
536 | [ZEBRA_ROUTE_NOTIFY_OWNER] = route_notify_owner, | |
537 | [ZEBRA_NEXTHOP_UPDATE] = static_zebra_nexthop_update, | |
538 | }; | |
539 | ||
7e24fdf3 DS |
540 | void static_zebra_init(void) |
541 | { | |
542 | struct zclient_options opt = { .receive_notify = true }; | |
543 | ||
138c5a74 DS |
544 | if_zapi_callbacks(static_ifp_create, static_ifp_up, |
545 | static_ifp_down, static_ifp_destroy); | |
546 | ||
a243d1db DL |
547 | zclient = zclient_new(master, &opt, static_handlers, |
548 | array_size(static_handlers)); | |
7e24fdf3 DS |
549 | |
550 | zclient_init(zclient, ZEBRA_ROUTE_STATIC, 0, &static_privs); | |
551 | zclient->zebra_capabilities = static_zebra_capabilities; | |
552 | zclient->zebra_connected = zebra_connected; | |
74f0a94e | 553 | |
50efe4be | 554 | static_nht_hash_init(static_nht_hash); |
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 | } |