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f4c89855 LB |
1 | /* |
2 | * Copyright 2015, LabN Consulting, L.L.C. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version 2 | |
7 | * of the License, or (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
896014f4 DL |
14 | * You should have received a copy of the GNU General Public License along |
15 | * with this program; see the file COPYING; if not, write to the Free Software | |
16 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
f4c89855 LB |
17 | */ |
18 | ||
19 | #include <zebra.h> | |
20 | ||
5bf15956 | 21 | #include "command.h" |
f4c89855 LB |
22 | #include "memory.h" |
23 | #include "prefix.h" | |
f4c89855 | 24 | #include "filter.h" |
937652c6 | 25 | #include "stream.h" |
f4c89855 LB |
26 | |
27 | #include "bgpd.h" | |
28 | #include "bgp_attr.h" | |
29 | ||
30 | #include "bgp_encap_types.h" | |
31 | #include "bgp_encap_tlv.h" | |
32 | ||
33 | /*********************************************************************** | |
34 | * SUBTLV ENCODE | |
35 | ***********************************************************************/ | |
36 | ||
37 | /* rfc5512 4.1 */ | |
d62a17ae | 38 | static struct bgp_attr_encap_subtlv *subtlv_encode_encap_l2tpv3_over_ip( |
39 | struct bgp_tea_subtlv_encap_l2tpv3_over_ip *st) | |
f4c89855 | 40 | { |
d62a17ae | 41 | struct bgp_attr_encap_subtlv *new; |
42 | uint8_t *p; | |
43 | int total = 4 + st->cookie_length; | |
f4c89855 | 44 | |
d62a17ae | 45 | /* sanity check */ |
46 | assert(st->cookie_length <= sizeof(st->cookie)); | |
47 | assert(total <= 0xff); | |
f4c89855 | 48 | |
d62a17ae | 49 | new = XCALLOC(MTYPE_ENCAP_TLV, |
12f70478 | 50 | sizeof(struct bgp_attr_encap_subtlv) + total); |
d62a17ae | 51 | assert(new); |
52 | new->type = BGP_ENCAP_SUBTLV_TYPE_ENCAPSULATION; | |
53 | new->length = total; | |
54 | p = new->value; | |
f4c89855 | 55 | |
d62a17ae | 56 | *p++ = (st->sessionid & 0xff000000) >> 24; |
57 | *p++ = (st->sessionid & 0xff0000) >> 16; | |
58 | *p++ = (st->sessionid & 0xff00) >> 8; | |
59 | *p++ = (st->sessionid & 0xff); | |
60 | memcpy(p, st->cookie, st->cookie_length); | |
61 | return new; | |
f4c89855 LB |
62 | } |
63 | ||
64 | /* rfc5512 4.1 */ | |
65 | static struct bgp_attr_encap_subtlv * | |
d62a17ae | 66 | subtlv_encode_encap_gre(struct bgp_tea_subtlv_encap_gre_key *st) |
f4c89855 | 67 | { |
d62a17ae | 68 | struct bgp_attr_encap_subtlv *new; |
69 | uint8_t *p; | |
70 | int total = 4; | |
f4c89855 | 71 | |
d62a17ae | 72 | assert(total <= 0xff); |
f4c89855 | 73 | |
d62a17ae | 74 | new = XCALLOC(MTYPE_ENCAP_TLV, |
12f70478 | 75 | sizeof(struct bgp_attr_encap_subtlv) + total); |
d62a17ae | 76 | assert(new); |
77 | new->type = BGP_ENCAP_SUBTLV_TYPE_ENCAPSULATION; | |
78 | new->length = total; | |
79 | p = new->value; | |
f4c89855 | 80 | |
d62a17ae | 81 | *p++ = (st->gre_key & 0xff000000) >> 24; |
82 | *p++ = (st->gre_key & 0xff0000) >> 16; | |
83 | *p++ = (st->gre_key & 0xff00) >> 8; | |
84 | *p++ = (st->gre_key & 0xff); | |
85 | return new; | |
f4c89855 LB |
86 | } |
87 | ||
88 | static struct bgp_attr_encap_subtlv * | |
d62a17ae | 89 | subtlv_encode_encap_pbb(struct bgp_tea_subtlv_encap_pbb *st) |
90 | { | |
91 | struct bgp_attr_encap_subtlv *new; | |
92 | uint8_t *p; | |
93 | int total = 1 + 3 + 6 + 2; /* flags + isid + madaddr + vid */ | |
94 | ||
95 | assert(total <= 0xff); | |
96 | ||
97 | new = XCALLOC(MTYPE_ENCAP_TLV, | |
12f70478 | 98 | sizeof(struct bgp_attr_encap_subtlv) + total); |
d62a17ae | 99 | assert(new); |
100 | new->type = BGP_ENCAP_SUBTLV_TYPE_ENCAPSULATION; | |
101 | new->length = total; | |
102 | p = new->value; | |
103 | ||
104 | *p++ = (st->flag_isid ? 0x80 : 0) | (st->flag_vid ? 0x40 : 0) | 0; | |
105 | if (st->flag_isid) { | |
106 | *p = (st->isid & 0xff0000) >> 16; | |
107 | *(p + 1) = (st->isid & 0xff00) >> 8; | |
108 | *(p + 2) = (st->isid & 0xff); | |
109 | } | |
110 | p += 3; | |
111 | memcpy(p, st->macaddr, 6); | |
112 | p += 6; | |
113 | if (st->flag_vid) { | |
114 | *p++ = (st->vid & 0xf00) >> 8; | |
115 | *p++ = st->vid & 0xff; | |
116 | } | |
117 | return new; | |
f4c89855 LB |
118 | } |
119 | ||
120 | /* rfc5512 4.2 */ | |
121 | static struct bgp_attr_encap_subtlv * | |
d62a17ae | 122 | subtlv_encode_proto_type(struct bgp_tea_subtlv_proto_type *st) |
f4c89855 | 123 | { |
d62a17ae | 124 | struct bgp_attr_encap_subtlv *new; |
125 | uint8_t *p; | |
126 | int total = 2; | |
f4c89855 | 127 | |
d62a17ae | 128 | assert(total <= 0xff); |
f4c89855 | 129 | |
d62a17ae | 130 | new = XCALLOC(MTYPE_ENCAP_TLV, |
12f70478 | 131 | sizeof(struct bgp_attr_encap_subtlv) + total); |
d62a17ae | 132 | assert(new); |
133 | new->type = BGP_ENCAP_SUBTLV_TYPE_PROTO_TYPE; | |
134 | new->length = total; | |
135 | p = new->value; | |
f4c89855 | 136 | |
d62a17ae | 137 | *p++ = (st->proto & 0xff00) >> 8; |
138 | *p++ = (st->proto & 0xff); | |
139 | return new; | |
f4c89855 LB |
140 | } |
141 | ||
142 | /* rfc5512 4.3 */ | |
143 | static struct bgp_attr_encap_subtlv * | |
d62a17ae | 144 | subtlv_encode_color(struct bgp_tea_subtlv_color *st) |
f4c89855 | 145 | { |
d62a17ae | 146 | struct bgp_attr_encap_subtlv *new; |
147 | uint8_t *p; | |
148 | int total = 8; | |
f4c89855 | 149 | |
d62a17ae | 150 | assert(total <= 0xff); |
f4c89855 | 151 | |
d62a17ae | 152 | new = XCALLOC(MTYPE_ENCAP_TLV, |
12f70478 | 153 | sizeof(struct bgp_attr_encap_subtlv) + total); |
d62a17ae | 154 | assert(new); |
155 | new->type = BGP_ENCAP_SUBTLV_TYPE_COLOR; | |
156 | new->length = total; | |
157 | p = new->value; | |
f4c89855 | 158 | |
d62a17ae | 159 | *p++ = 0x03; /* transitive*/ |
160 | *p++ = 0x0b; | |
161 | *p++ = 0; /* reserved */ | |
162 | *p++ = 0; /* reserved */ | |
f4c89855 | 163 | |
d62a17ae | 164 | *p++ = (st->color & 0xff000000) >> 24; |
165 | *p++ = (st->color & 0xff0000) >> 16; | |
166 | *p++ = (st->color & 0xff00) >> 8; | |
167 | *p++ = (st->color & 0xff); | |
f4c89855 | 168 | |
d62a17ae | 169 | return new; |
f4c89855 LB |
170 | } |
171 | ||
172 | /* rfc 5566 4. */ | |
173 | static struct bgp_attr_encap_subtlv * | |
d62a17ae | 174 | subtlv_encode_ipsec_ta(struct bgp_tea_subtlv_ipsec_ta *st) |
f4c89855 | 175 | { |
d62a17ae | 176 | struct bgp_attr_encap_subtlv *new; |
177 | uint8_t *p; | |
178 | int total = 2 + st->authenticator_length; | |
f4c89855 | 179 | |
d62a17ae | 180 | /* sanity check */ |
181 | assert(st->authenticator_length <= sizeof(st->value)); | |
182 | assert(total <= 0xff); | |
f4c89855 | 183 | |
d62a17ae | 184 | new = XCALLOC(MTYPE_ENCAP_TLV, |
12f70478 | 185 | sizeof(struct bgp_attr_encap_subtlv) + total); |
d62a17ae | 186 | assert(new); |
187 | new->type = BGP_ENCAP_SUBTLV_TYPE_IPSEC_TA; | |
188 | new->length = total; | |
189 | p = new->value; | |
f4c89855 | 190 | |
d62a17ae | 191 | *p++ = (st->authenticator_type & 0xff00) >> 8; |
192 | *p++ = st->authenticator_type & 0xff; | |
193 | memcpy(p, st->value, st->authenticator_length); | |
194 | return new; | |
f4c89855 LB |
195 | } |
196 | ||
587ff0fd LB |
197 | /* draft-rosen-idr-tunnel-encaps 2.1 */ |
198 | static struct bgp_attr_encap_subtlv * | |
d62a17ae | 199 | subtlv_encode_remote_endpoint(struct bgp_tea_subtlv_remote_endpoint *st) |
200 | { | |
201 | struct bgp_attr_encap_subtlv *new; | |
202 | uint8_t *p; | |
203 | ||
204 | int total = (st->family == AF_INET ? 8 : 20); | |
205 | ||
206 | assert(total <= 0xff); | |
207 | ||
208 | new = XCALLOC(MTYPE_ENCAP_TLV, | |
12f70478 | 209 | sizeof(struct bgp_attr_encap_subtlv) + total); |
d62a17ae | 210 | assert(new); |
211 | new->type = BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT; | |
212 | new->length = total; | |
213 | p = new->value; | |
214 | if (st->family == AF_INET) { | |
215 | memcpy(p, &(st->ip_address.v4.s_addr), 4); | |
216 | p += 4; | |
217 | } else { | |
218 | assert(st->family == AF_INET6); | |
219 | memcpy(p, &(st->ip_address.v6.s6_addr), 16); | |
220 | p += 16; | |
221 | } | |
222 | memcpy(p, &(st->as4), 4); | |
223 | return new; | |
587ff0fd | 224 | } |
f4c89855 LB |
225 | |
226 | /*********************************************************************** | |
227 | * TUNNEL TYPE-SPECIFIC TLV ENCODE | |
228 | ***********************************************************************/ | |
229 | ||
230 | /* | |
231 | * requires "extra" and "last" to be defined in caller | |
232 | */ | |
d62a17ae | 233 | #define ENC_SUBTLV(flag, function, field) \ |
234 | do { \ | |
235 | struct bgp_attr_encap_subtlv *new; \ | |
236 | if (CHECK_FLAG(bet->valid_subtlvs, (flag))) { \ | |
237 | new = function(&bet->field); \ | |
238 | if (last) { \ | |
239 | last->next = new; \ | |
240 | } else { \ | |
241 | attr->encap_subtlvs = new; \ | |
242 | } \ | |
243 | last = new; \ | |
244 | } \ | |
245 | } while (0) | |
f4c89855 | 246 | |
d62a17ae | 247 | void bgp_encap_type_l2tpv3overip_to_tlv( |
248 | struct bgp_encap_type_l2tpv3_over_ip *bet, /* input structure */ | |
249 | struct attr *attr) | |
f4c89855 | 250 | { |
d62a17ae | 251 | struct bgp_attr_encap_subtlv *last; |
f4c89855 | 252 | |
d62a17ae | 253 | /* advance to last subtlv */ |
254 | for (last = attr->encap_subtlvs; last && last->next; last = last->next) | |
255 | ; | |
f4c89855 | 256 | |
d62a17ae | 257 | attr->encap_tunneltype = BGP_ENCAP_TYPE_L2TPV3_OVER_IP; |
f4c89855 | 258 | |
d62a17ae | 259 | assert(CHECK_FLAG(bet->valid_subtlvs, BGP_TEA_SUBTLV_ENCAP)); |
f4c89855 | 260 | |
d62a17ae | 261 | ENC_SUBTLV(BGP_TEA_SUBTLV_ENCAP, subtlv_encode_encap_l2tpv3_over_ip, |
262 | st_encap); | |
263 | ENC_SUBTLV(BGP_TEA_SUBTLV_PROTO_TYPE, subtlv_encode_proto_type, | |
264 | st_proto); | |
265 | ENC_SUBTLV(BGP_TEA_SUBTLV_COLOR, subtlv_encode_color, st_color); | |
266 | ENC_SUBTLV(BGP_TEA_SUBTLV_REMOTE_ENDPOINT, | |
267 | subtlv_encode_remote_endpoint, st_endpoint); | |
f4c89855 LB |
268 | } |
269 | ||
d62a17ae | 270 | void bgp_encap_type_gre_to_tlv( |
271 | struct bgp_encap_type_gre *bet, /* input structure */ | |
272 | struct attr *attr) | |
f4c89855 | 273 | { |
d62a17ae | 274 | struct bgp_attr_encap_subtlv *last; |
f4c89855 | 275 | |
d62a17ae | 276 | /* advance to last subtlv */ |
277 | for (last = attr->encap_subtlvs; last && last->next; last = last->next) | |
278 | ; | |
f4c89855 | 279 | |
d62a17ae | 280 | attr->encap_tunneltype = BGP_ENCAP_TYPE_GRE; |
f4c89855 | 281 | |
d62a17ae | 282 | ENC_SUBTLV(BGP_TEA_SUBTLV_ENCAP, subtlv_encode_encap_gre, st_encap); |
283 | ENC_SUBTLV(BGP_TEA_SUBTLV_PROTO_TYPE, subtlv_encode_proto_type, | |
284 | st_proto); | |
285 | ENC_SUBTLV(BGP_TEA_SUBTLV_COLOR, subtlv_encode_color, st_color); | |
286 | ENC_SUBTLV(BGP_TEA_SUBTLV_REMOTE_ENDPOINT, | |
287 | subtlv_encode_remote_endpoint, st_endpoint); | |
f4c89855 LB |
288 | } |
289 | ||
d62a17ae | 290 | void bgp_encap_type_ip_in_ip_to_tlv( |
291 | struct bgp_encap_type_ip_in_ip *bet, /* input structure */ | |
292 | struct attr *attr) | |
f4c89855 | 293 | { |
d62a17ae | 294 | struct bgp_attr_encap_subtlv *last; |
f4c89855 | 295 | |
d62a17ae | 296 | /* advance to last subtlv */ |
297 | for (last = attr->encap_subtlvs; last && last->next; last = last->next) | |
298 | ; | |
f4c89855 | 299 | |
d62a17ae | 300 | attr->encap_tunneltype = BGP_ENCAP_TYPE_IP_IN_IP; |
f4c89855 | 301 | |
d62a17ae | 302 | ENC_SUBTLV(BGP_TEA_SUBTLV_PROTO_TYPE, subtlv_encode_proto_type, |
303 | st_proto); | |
304 | ENC_SUBTLV(BGP_TEA_SUBTLV_COLOR, subtlv_encode_color, st_color); | |
305 | ENC_SUBTLV(BGP_TEA_SUBTLV_REMOTE_ENDPOINT, | |
306 | subtlv_encode_remote_endpoint, st_endpoint); | |
f4c89855 LB |
307 | } |
308 | ||
d62a17ae | 309 | void bgp_encap_type_transmit_tunnel_endpoint( |
310 | struct bgp_encap_type_transmit_tunnel_endpoint | |
311 | *bet, /* input structure */ | |
312 | struct attr *attr) | |
f4c89855 | 313 | { |
d62a17ae | 314 | struct bgp_attr_encap_subtlv *last; |
f4c89855 | 315 | |
d62a17ae | 316 | /* advance to last subtlv */ |
317 | for (last = attr->encap_subtlvs; last && last->next; last = last->next) | |
318 | ; | |
f4c89855 | 319 | |
d62a17ae | 320 | attr->encap_tunneltype = BGP_ENCAP_TYPE_TRANSMIT_TUNNEL_ENDPOINT; |
f4c89855 | 321 | |
d62a17ae | 322 | /* no subtlvs for this type */ |
f4c89855 LB |
323 | } |
324 | ||
d62a17ae | 325 | void bgp_encap_type_ipsec_in_tunnel_mode_to_tlv( |
326 | struct bgp_encap_type_ipsec_in_tunnel_mode *bet, /* input structure */ | |
327 | struct attr *attr) | |
f4c89855 | 328 | { |
d62a17ae | 329 | struct bgp_attr_encap_subtlv *last; |
f4c89855 | 330 | |
d62a17ae | 331 | /* advance to last subtlv */ |
332 | for (last = attr->encap_subtlvs; last && last->next; last = last->next) | |
333 | ; | |
f4c89855 | 334 | |
d62a17ae | 335 | attr->encap_tunneltype = BGP_ENCAP_TYPE_IPSEC_IN_TUNNEL_MODE; |
f4c89855 | 336 | |
d62a17ae | 337 | ENC_SUBTLV(BGP_TEA_SUBTLV_IPSEC_TA, subtlv_encode_ipsec_ta, |
338 | st_ipsec_ta); | |
f4c89855 LB |
339 | } |
340 | ||
d62a17ae | 341 | void bgp_encap_type_ip_in_ip_tunnel_with_ipsec_transport_mode_to_tlv( |
342 | struct bgp_encap_type_ip_in_ip_tunnel_with_ipsec_transport_mode | |
343 | *bet, /* input structure */ | |
344 | struct attr *attr) | |
f4c89855 | 345 | { |
d62a17ae | 346 | struct bgp_attr_encap_subtlv *last; |
f4c89855 | 347 | |
d62a17ae | 348 | /* advance to last subtlv */ |
349 | for (last = attr->encap_subtlvs; last && last->next; last = last->next) | |
350 | ; | |
f4c89855 | 351 | |
d62a17ae | 352 | attr->encap_tunneltype = |
353 | BGP_ENCAP_TYPE_IP_IN_IP_TUNNEL_WITH_IPSEC_TRANSPORT_MODE; | |
f4c89855 | 354 | |
d62a17ae | 355 | ENC_SUBTLV(BGP_TEA_SUBTLV_IPSEC_TA, subtlv_encode_ipsec_ta, |
356 | st_ipsec_ta); | |
f4c89855 LB |
357 | } |
358 | ||
d62a17ae | 359 | void bgp_encap_type_mpls_in_ip_tunnel_with_ipsec_transport_mode_to_tlv( |
360 | struct bgp_encap_type_mpls_in_ip_tunnel_with_ipsec_transport_mode | |
361 | *bet, /* input structure */ | |
362 | struct attr *attr) | |
f4c89855 | 363 | { |
d62a17ae | 364 | struct bgp_attr_encap_subtlv *last; |
f4c89855 | 365 | |
d62a17ae | 366 | /* advance to last subtlv */ |
367 | for (last = attr->encap_subtlvs; last && last->next; last = last->next) | |
368 | ; | |
f4c89855 | 369 | |
d62a17ae | 370 | attr->encap_tunneltype = |
371 | BGP_ENCAP_TYPE_MPLS_IN_IP_TUNNEL_WITH_IPSEC_TRANSPORT_MODE; | |
f4c89855 | 372 | |
d62a17ae | 373 | ENC_SUBTLV(BGP_TEA_SUBTLV_IPSEC_TA, subtlv_encode_ipsec_ta, |
374 | st_ipsec_ta); | |
f4c89855 LB |
375 | } |
376 | ||
d62a17ae | 377 | void bgp_encap_type_pbb_to_tlv( |
378 | struct bgp_encap_type_pbb *bet, /* input structure */ | |
379 | struct attr *attr) | |
f4c89855 | 380 | { |
d62a17ae | 381 | struct bgp_attr_encap_subtlv *last; |
f4c89855 | 382 | |
d62a17ae | 383 | /* advance to last subtlv */ |
384 | for (last = attr->encap_subtlvs; last && last->next; last = last->next) | |
385 | ; | |
f4c89855 | 386 | |
d62a17ae | 387 | attr->encap_tunneltype = BGP_ENCAP_TYPE_PBB; |
f4c89855 | 388 | |
d62a17ae | 389 | assert(CHECK_FLAG(bet->valid_subtlvs, BGP_TEA_SUBTLV_ENCAP)); |
390 | ENC_SUBTLV(BGP_TEA_SUBTLV_ENCAP, subtlv_encode_encap_pbb, st_encap); | |
f4c89855 LB |
391 | } |
392 | ||
d62a17ae | 393 | void bgp_encap_type_vxlan_to_tlv( |
394 | struct bgp_encap_type_vxlan *bet, /* input structure */ | |
395 | struct attr *attr) | |
f4c89855 | 396 | { |
d62a17ae | 397 | struct bgp_attr_encap_subtlv *tlv; |
398 | uint32_t vnid; | |
f4c89855 | 399 | |
d62a17ae | 400 | attr->encap_tunneltype = BGP_ENCAP_TYPE_VXLAN; |
aee875b5 | 401 | |
d62a17ae | 402 | if (bet == NULL || !bet->vnid) |
403 | return; | |
404 | if (attr->encap_subtlvs) | |
405 | XFREE(MTYPE_ENCAP_TLV, attr->encap_subtlvs); | |
406 | tlv = XCALLOC(MTYPE_ENCAP_TLV, | |
12f70478 | 407 | sizeof(struct bgp_attr_encap_subtlv) + 12); |
d62a17ae | 408 | tlv->type = 1; /* encapsulation type */ |
409 | tlv->length = 12; | |
410 | if (bet->vnid) { | |
411 | vnid = htonl(bet->vnid | VXLAN_ENCAP_MASK_VNID_VALID); | |
412 | memcpy(&tlv->value, &vnid, 4); | |
413 | } | |
414 | if (bet->mac_address) { | |
415 | char *ptr = (char *)&tlv->value + 4; | |
416 | memcpy(ptr, bet->mac_address, 6); | |
417 | } | |
418 | attr->encap_subtlvs = tlv; | |
419 | return; | |
f4c89855 LB |
420 | } |
421 | ||
d62a17ae | 422 | void bgp_encap_type_nvgre_to_tlv( |
423 | struct bgp_encap_type_nvgre *bet, /* input structure */ | |
424 | struct attr *attr) | |
f4c89855 | 425 | { |
d62a17ae | 426 | attr->encap_tunneltype = BGP_ENCAP_TYPE_NVGRE; |
f4c89855 LB |
427 | } |
428 | ||
d62a17ae | 429 | void bgp_encap_type_mpls_to_tlv( |
430 | struct bgp_encap_type_mpls *bet, /* input structure */ | |
431 | struct attr *attr) | |
f4c89855 | 432 | { |
d62a17ae | 433 | return; /* no encap attribute for MPLS */ |
f4c89855 LB |
434 | } |
435 | ||
d62a17ae | 436 | void bgp_encap_type_mpls_in_gre_to_tlv( |
437 | struct bgp_encap_type_mpls_in_gre *bet, /* input structure */ | |
438 | struct attr *attr) | |
f4c89855 | 439 | { |
d62a17ae | 440 | attr->encap_tunneltype = BGP_ENCAP_TYPE_MPLS_IN_GRE; |
f4c89855 LB |
441 | } |
442 | ||
d62a17ae | 443 | void bgp_encap_type_vxlan_gpe_to_tlv( |
444 | struct bgp_encap_type_vxlan_gpe *bet, /* input structure */ | |
445 | struct attr *attr) | |
f4c89855 | 446 | { |
f4c89855 | 447 | |
d62a17ae | 448 | attr->encap_tunneltype = BGP_ENCAP_TYPE_VXLAN_GPE; |
f4c89855 LB |
449 | } |
450 | ||
d62a17ae | 451 | void bgp_encap_type_mpls_in_udp_to_tlv( |
452 | struct bgp_encap_type_mpls_in_udp *bet, /* input structure */ | |
453 | struct attr *attr) | |
f4c89855 | 454 | { |
f4c89855 | 455 | |
d62a17ae | 456 | attr->encap_tunneltype = BGP_ENCAP_TYPE_MPLS_IN_UDP; |
f4c89855 LB |
457 | } |
458 | ||
459 | ||
460 | /*********************************************************************** | |
461 | * SUBTLV DECODE | |
462 | ***********************************************************************/ | |
463 | /* rfc5512 4.1 */ | |
d62a17ae | 464 | static int subtlv_decode_encap_l2tpv3_over_ip( |
465 | struct bgp_attr_encap_subtlv *subtlv, | |
466 | struct bgp_tea_subtlv_encap_l2tpv3_over_ip *st) | |
467 | { | |
468 | if (subtlv->length < 4) { | |
469 | zlog_debug("%s, subtlv length %d is less than 4", __func__, | |
470 | subtlv->length); | |
471 | return -1; | |
472 | } | |
473 | ||
937652c6 | 474 | ptr_get_be32(subtlv->value, &st->sessionid); |
d62a17ae | 475 | st->cookie_length = subtlv->length - 4; |
476 | if (st->cookie_length > sizeof(st->cookie)) { | |
477 | zlog_debug("%s, subtlv length %d is greater than %d", __func__, | |
478 | st->cookie_length, (int)sizeof(st->cookie)); | |
479 | return -1; | |
480 | } | |
481 | memcpy(st->cookie, subtlv->value + 4, st->cookie_length); | |
482 | return 0; | |
f4c89855 LB |
483 | } |
484 | ||
485 | /* rfc5512 4.1 */ | |
d62a17ae | 486 | static int subtlv_decode_encap_gre(struct bgp_attr_encap_subtlv *subtlv, |
487 | struct bgp_tea_subtlv_encap_gre_key *st) | |
488 | { | |
489 | if (subtlv->length != 4) { | |
490 | zlog_debug("%s, subtlv length %d does not equal 4", __func__, | |
491 | subtlv->length); | |
492 | return -1; | |
493 | } | |
937652c6 | 494 | ptr_get_be32(subtlv->value, &st->gre_key); |
d62a17ae | 495 | return 0; |
f4c89855 LB |
496 | } |
497 | ||
d62a17ae | 498 | static int subtlv_decode_encap_pbb(struct bgp_attr_encap_subtlv *subtlv, |
499 | struct bgp_tea_subtlv_encap_pbb *st) | |
500 | { | |
501 | if (subtlv->length != 1 + 3 + 6 + 2) { | |
502 | zlog_debug("%s, subtlv length %d does not equal %d", __func__, | |
503 | subtlv->length, 1 + 3 + 6 + 2); | |
504 | return -1; | |
505 | } | |
506 | if (subtlv->value[0] & 0x80) { | |
507 | st->flag_isid = 1; | |
508 | st->isid = (subtlv->value[1] << 16) | (subtlv->value[2] << 8) | |
509 | | subtlv->value[3]; | |
510 | } | |
511 | if (subtlv->value[0] & 0x40) { | |
512 | st->flag_vid = 1; | |
513 | st->vid = ((subtlv->value[10] & 0x0f) << 8) | subtlv->value[11]; | |
514 | } | |
515 | memcpy(st->macaddr, subtlv->value + 4, 6); | |
516 | return 0; | |
f4c89855 LB |
517 | } |
518 | ||
519 | /* rfc5512 4.2 */ | |
d62a17ae | 520 | static int subtlv_decode_proto_type(struct bgp_attr_encap_subtlv *subtlv, |
521 | struct bgp_tea_subtlv_proto_type *st) | |
f4c89855 | 522 | { |
d62a17ae | 523 | if (subtlv->length != 2) { |
524 | zlog_debug("%s, subtlv length %d does not equal 2", __func__, | |
525 | subtlv->length); | |
526 | return -1; | |
527 | } | |
528 | st->proto = (subtlv->value[0] << 8) | subtlv->value[1]; | |
529 | return 0; | |
f4c89855 LB |
530 | } |
531 | ||
532 | /* rfc5512 4.3 */ | |
d62a17ae | 533 | static int subtlv_decode_color(struct bgp_attr_encap_subtlv *subtlv, |
534 | struct bgp_tea_subtlv_color *st) | |
535 | { | |
536 | if (subtlv->length != 8) { | |
537 | zlog_debug("%s, subtlv length %d does not equal 8", __func__, | |
538 | subtlv->length); | |
539 | return -1; | |
540 | } | |
541 | if ((subtlv->value[0] != 0x03) || (subtlv->value[1] != 0x0b) | |
542 | || (subtlv->value[2] != 0) || (subtlv->value[3] != 0)) { | |
543 | zlog_debug("%s, subtlv value 1st 4 bytes are not 0x030b0000", | |
544 | __func__); | |
545 | return -1; | |
546 | } | |
937652c6 | 547 | ptr_get_be32(subtlv->value + 4, &st->color); |
d62a17ae | 548 | return 0; |
f4c89855 LB |
549 | } |
550 | ||
551 | /* rfc 5566 4. */ | |
d62a17ae | 552 | static int subtlv_decode_ipsec_ta(struct bgp_attr_encap_subtlv *subtlv, |
553 | struct bgp_tea_subtlv_ipsec_ta *st) | |
554 | { | |
555 | st->authenticator_length = subtlv->length - 2; | |
556 | if (st->authenticator_length > sizeof(st->value)) { | |
557 | zlog_debug( | |
558 | "%s, authenticator length %d exceeds storage maximum %d", | |
559 | __func__, st->authenticator_length, | |
560 | (int)sizeof(st->value)); | |
561 | return -1; | |
562 | } | |
563 | st->authenticator_type = (subtlv->value[0] << 8) | subtlv->value[1]; | |
564 | memcpy(st->value, subtlv->value + 2, st->authenticator_length); | |
565 | return 0; | |
f4c89855 LB |
566 | } |
567 | ||
587ff0fd LB |
568 | /* draft-rosen-idr-tunnel-encaps 2.1 */ |
569 | static int | |
d62a17ae | 570 | subtlv_decode_remote_endpoint(struct bgp_attr_encap_subtlv *subtlv, |
571 | struct bgp_tea_subtlv_remote_endpoint *st) | |
572 | { | |
573 | int i; | |
574 | if (subtlv->length != 8 && subtlv->length != 20) { | |
575 | zlog_debug("%s, subtlv length %d does not equal 8 or 20", | |
576 | __func__, subtlv->length); | |
577 | return -1; | |
578 | } | |
579 | if (subtlv->length == 8) { | |
580 | st->family = AF_INET; | |
937652c6 | 581 | memcpy(&st->ip_address.v4.s_addr, subtlv->value, 4); |
d62a17ae | 582 | } else { |
583 | st->family = AF_INET6; | |
584 | memcpy(&(st->ip_address.v6.s6_addr), subtlv->value, 16); | |
585 | } | |
586 | i = subtlv->length - 4; | |
937652c6 | 587 | ptr_get_be32(subtlv->value + i, &st->as4); |
d62a17ae | 588 | return 0; |
587ff0fd LB |
589 | } |
590 | ||
f4c89855 LB |
591 | /*********************************************************************** |
592 | * TUNNEL TYPE-SPECIFIC TLV DECODE | |
593 | ***********************************************************************/ | |
594 | ||
d62a17ae | 595 | int tlv_to_bgp_encap_type_l2tpv3overip( |
596 | struct bgp_attr_encap_subtlv *stlv, /* subtlv chain */ | |
597 | struct bgp_encap_type_l2tpv3_over_ip *bet) /* caller-allocated */ | |
598 | { | |
599 | struct bgp_attr_encap_subtlv *st; | |
600 | int rc = 0; | |
601 | ||
602 | for (st = stlv; st; st = st->next) { | |
603 | switch (st->type) { | |
604 | case BGP_ENCAP_SUBTLV_TYPE_ENCAPSULATION: | |
605 | rc |= subtlv_decode_encap_l2tpv3_over_ip( | |
606 | st, &bet->st_encap); | |
607 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_ENCAP); | |
608 | break; | |
609 | ||
610 | case BGP_ENCAP_SUBTLV_TYPE_PROTO_TYPE: | |
611 | rc |= subtlv_decode_proto_type(st, &bet->st_proto); | |
612 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_PROTO_TYPE); | |
613 | break; | |
614 | ||
615 | case BGP_ENCAP_SUBTLV_TYPE_COLOR: | |
616 | rc |= subtlv_decode_color(st, &bet->st_color); | |
617 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_COLOR); | |
618 | break; | |
619 | ||
620 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: | |
621 | rc |= subtlv_decode_remote_endpoint(st, | |
622 | &bet->st_endpoint); | |
623 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
624 | break; | |
625 | ||
626 | default: | |
627 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
628 | st->type); | |
629 | rc |= -1; | |
630 | break; | |
631 | } | |
f4c89855 | 632 | } |
d62a17ae | 633 | return rc; |
634 | } | |
635 | ||
636 | int tlv_to_bgp_encap_type_gre( | |
637 | struct bgp_attr_encap_subtlv *stlv, /* subtlv chain */ | |
638 | struct bgp_encap_type_gre *bet) /* caller-allocated */ | |
639 | { | |
640 | struct bgp_attr_encap_subtlv *st; | |
641 | int rc = 0; | |
642 | ||
643 | for (st = stlv; st; st = st->next) { | |
644 | switch (st->type) { | |
645 | case BGP_ENCAP_SUBTLV_TYPE_ENCAPSULATION: | |
646 | rc |= subtlv_decode_encap_gre(st, &bet->st_encap); | |
647 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_ENCAP); | |
648 | break; | |
649 | ||
650 | case BGP_ENCAP_SUBTLV_TYPE_PROTO_TYPE: | |
651 | rc |= subtlv_decode_proto_type(st, &bet->st_proto); | |
652 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_PROTO_TYPE); | |
653 | break; | |
654 | ||
655 | case BGP_ENCAP_SUBTLV_TYPE_COLOR: | |
656 | rc |= subtlv_decode_color(st, &bet->st_color); | |
657 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_COLOR); | |
658 | break; | |
659 | ||
660 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: | |
661 | rc |= subtlv_decode_remote_endpoint(st, | |
662 | &bet->st_endpoint); | |
663 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
664 | break; | |
665 | ||
666 | default: | |
667 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
668 | st->type); | |
669 | rc |= -1; | |
670 | break; | |
671 | } | |
f4c89855 | 672 | } |
d62a17ae | 673 | return rc; |
674 | } | |
675 | ||
676 | int tlv_to_bgp_encap_type_ip_in_ip( | |
677 | struct bgp_attr_encap_subtlv *stlv, /* subtlv chain */ | |
678 | struct bgp_encap_type_ip_in_ip *bet) /* caller-allocated */ | |
679 | { | |
680 | struct bgp_attr_encap_subtlv *st; | |
681 | int rc = 0; | |
682 | ||
683 | for (st = stlv; st; st = st->next) { | |
684 | switch (st->type) { | |
685 | case BGP_ENCAP_SUBTLV_TYPE_PROTO_TYPE: | |
686 | rc |= subtlv_decode_proto_type(st, &bet->st_proto); | |
687 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_PROTO_TYPE); | |
688 | break; | |
689 | ||
690 | case BGP_ENCAP_SUBTLV_TYPE_COLOR: | |
691 | rc |= subtlv_decode_color(st, &bet->st_color); | |
692 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_COLOR); | |
693 | break; | |
694 | ||
695 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: | |
696 | rc |= subtlv_decode_remote_endpoint(st, | |
697 | &bet->st_endpoint); | |
698 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
699 | break; | |
700 | ||
701 | default: | |
702 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
703 | st->type); | |
704 | rc |= -1; | |
705 | break; | |
706 | } | |
f4c89855 | 707 | } |
d62a17ae | 708 | return rc; |
f4c89855 LB |
709 | } |
710 | ||
d62a17ae | 711 | int tlv_to_bgp_encap_type_transmit_tunnel_endpoint( |
712 | struct bgp_attr_encap_subtlv *stlv, | |
713 | struct bgp_encap_type_transmit_tunnel_endpoint *bet) | |
f4c89855 | 714 | { |
d62a17ae | 715 | struct bgp_attr_encap_subtlv *st; |
716 | int rc = 0; | |
f4c89855 | 717 | |
d62a17ae | 718 | for (st = stlv; st; st = st->next) { |
719 | switch (st->type) { | |
587ff0fd | 720 | |
d62a17ae | 721 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: |
722 | rc |= subtlv_decode_remote_endpoint(st, | |
723 | &bet->st_endpoint); | |
724 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
725 | break; | |
587ff0fd | 726 | |
d62a17ae | 727 | default: |
728 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
729 | st->type); | |
730 | rc |= -1; | |
731 | break; | |
732 | } | |
f4c89855 | 733 | } |
d62a17ae | 734 | return rc; |
735 | } | |
736 | ||
737 | int tlv_to_bgp_encap_type_ipsec_in_tunnel_mode( | |
738 | struct bgp_attr_encap_subtlv *stlv, /* subtlv chain */ | |
739 | struct bgp_encap_type_ipsec_in_tunnel_mode *bet) /* caller-allocated */ | |
740 | { | |
741 | struct bgp_attr_encap_subtlv *st; | |
742 | int rc = 0; | |
743 | ||
744 | for (st = stlv; st; st = st->next) { | |
745 | switch (st->type) { | |
746 | case BGP_ENCAP_SUBTLV_TYPE_IPSEC_TA: | |
747 | rc |= subtlv_decode_ipsec_ta(st, &bet->st_ipsec_ta); | |
748 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_IPSEC_TA); | |
749 | break; | |
750 | ||
751 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: | |
752 | rc |= subtlv_decode_remote_endpoint(st, | |
753 | &bet->st_endpoint); | |
754 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
755 | break; | |
756 | ||
757 | default: | |
758 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
759 | st->type); | |
760 | rc |= -1; | |
761 | break; | |
762 | } | |
f4c89855 | 763 | } |
d62a17ae | 764 | return rc; |
765 | } | |
766 | ||
767 | int tlv_to_bgp_encap_type_ip_in_ip_tunnel_with_ipsec_transport_mode( | |
768 | struct bgp_attr_encap_subtlv *stlv, | |
769 | struct bgp_encap_type_ip_in_ip_tunnel_with_ipsec_transport_mode *bet) | |
770 | { | |
771 | struct bgp_attr_encap_subtlv *st; | |
772 | int rc = 0; | |
773 | ||
774 | for (st = stlv; st; st = st->next) { | |
775 | switch (st->type) { | |
776 | case BGP_ENCAP_SUBTLV_TYPE_IPSEC_TA: | |
777 | rc |= subtlv_decode_ipsec_ta(st, &bet->st_ipsec_ta); | |
778 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_IPSEC_TA); | |
779 | break; | |
780 | ||
781 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: | |
782 | rc |= subtlv_decode_remote_endpoint(st, | |
783 | &bet->st_endpoint); | |
784 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
785 | break; | |
786 | ||
787 | default: | |
788 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
789 | st->type); | |
790 | rc |= -1; | |
791 | break; | |
792 | } | |
f4c89855 | 793 | } |
d62a17ae | 794 | return rc; |
795 | } | |
796 | ||
797 | int tlv_to_bgp_encap_type_mpls_in_ip_tunnel_with_ipsec_transport_mode( | |
798 | struct bgp_attr_encap_subtlv *stlv, | |
799 | struct bgp_encap_type_mpls_in_ip_tunnel_with_ipsec_transport_mode *bet) | |
800 | { | |
801 | struct bgp_attr_encap_subtlv *st; | |
802 | int rc = 0; | |
803 | ||
804 | for (st = stlv; st; st = st->next) { | |
805 | switch (st->type) { | |
806 | case BGP_ENCAP_SUBTLV_TYPE_IPSEC_TA: | |
807 | rc |= subtlv_decode_ipsec_ta(st, &bet->st_ipsec_ta); | |
808 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_IPSEC_TA); | |
809 | break; | |
810 | ||
811 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: | |
812 | rc |= subtlv_decode_remote_endpoint(st, | |
813 | &bet->st_endpoint); | |
814 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
815 | break; | |
816 | ||
817 | default: | |
818 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
819 | st->type); | |
820 | rc |= -1; | |
821 | break; | |
822 | } | |
f4c89855 | 823 | } |
d62a17ae | 824 | return rc; |
f4c89855 LB |
825 | } |
826 | ||
d62a17ae | 827 | int tlv_to_bgp_encap_type_vxlan(struct bgp_attr_encap_subtlv *stlv, |
828 | struct bgp_encap_type_vxlan *bet) | |
f4c89855 | 829 | { |
d62a17ae | 830 | struct bgp_attr_encap_subtlv *st; |
831 | int rc = 0; | |
f4c89855 | 832 | |
d62a17ae | 833 | for (st = stlv; st; st = st->next) { |
834 | switch (st->type) { | |
587ff0fd | 835 | |
d62a17ae | 836 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: |
837 | rc |= subtlv_decode_remote_endpoint(st, | |
838 | &bet->st_endpoint); | |
839 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
840 | break; | |
587ff0fd | 841 | |
d62a17ae | 842 | default: |
843 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
844 | st->type); | |
845 | rc |= -1; | |
846 | break; | |
847 | } | |
f4c89855 | 848 | } |
d62a17ae | 849 | return rc; |
f4c89855 LB |
850 | } |
851 | ||
d62a17ae | 852 | int tlv_to_bgp_encap_type_nvgre(struct bgp_attr_encap_subtlv *stlv, |
853 | struct bgp_encap_type_nvgre *bet) | |
f4c89855 | 854 | { |
d62a17ae | 855 | struct bgp_attr_encap_subtlv *st; |
856 | int rc = 0; | |
f4c89855 | 857 | |
d62a17ae | 858 | for (st = stlv; st; st = st->next) { |
859 | switch (st->type) { | |
587ff0fd | 860 | |
d62a17ae | 861 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: |
862 | rc |= subtlv_decode_remote_endpoint(st, | |
863 | &bet->st_endpoint); | |
864 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
865 | break; | |
587ff0fd | 866 | |
d62a17ae | 867 | default: |
868 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
869 | st->type); | |
870 | rc |= -1; | |
871 | break; | |
872 | } | |
f4c89855 | 873 | } |
d62a17ae | 874 | return rc; |
f4c89855 LB |
875 | } |
876 | ||
d62a17ae | 877 | int tlv_to_bgp_encap_type_mpls(struct bgp_attr_encap_subtlv *stlv, |
878 | struct bgp_encap_type_mpls *bet) | |
f4c89855 | 879 | { |
d62a17ae | 880 | struct bgp_attr_encap_subtlv *st; |
881 | int rc = 0; | |
f4c89855 | 882 | |
d62a17ae | 883 | for (st = stlv; st; st = st->next) { |
884 | switch (st->type) { | |
587ff0fd | 885 | |
d62a17ae | 886 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: |
887 | rc |= subtlv_decode_remote_endpoint(st, | |
888 | &bet->st_endpoint); | |
889 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
890 | break; | |
587ff0fd | 891 | |
d62a17ae | 892 | default: |
893 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
894 | st->type); | |
895 | rc |= -1; | |
896 | break; | |
897 | } | |
f4c89855 | 898 | } |
d62a17ae | 899 | return rc; |
f4c89855 LB |
900 | } |
901 | ||
d62a17ae | 902 | int tlv_to_bgp_encap_type_mpls_in_gre(struct bgp_attr_encap_subtlv *stlv, |
903 | struct bgp_encap_type_mpls_in_gre *bet) | |
f4c89855 | 904 | { |
d62a17ae | 905 | struct bgp_attr_encap_subtlv *st; |
906 | int rc = 0; | |
f4c89855 | 907 | |
d62a17ae | 908 | for (st = stlv; st; st = st->next) { |
909 | switch (st->type) { | |
587ff0fd | 910 | |
d62a17ae | 911 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: |
912 | rc |= subtlv_decode_remote_endpoint(st, | |
913 | &bet->st_endpoint); | |
914 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
915 | break; | |
587ff0fd | 916 | |
d62a17ae | 917 | default: |
918 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
919 | st->type); | |
920 | rc |= -1; | |
921 | break; | |
922 | } | |
f4c89855 | 923 | } |
d62a17ae | 924 | return rc; |
f4c89855 LB |
925 | } |
926 | ||
d62a17ae | 927 | int tlv_to_bgp_encap_type_vxlan_gpe(struct bgp_attr_encap_subtlv *stlv, |
928 | struct bgp_encap_type_vxlan_gpe *bet) | |
f4c89855 | 929 | { |
d62a17ae | 930 | struct bgp_attr_encap_subtlv *st; |
931 | int rc = 0; | |
f4c89855 | 932 | |
d62a17ae | 933 | for (st = stlv; st; st = st->next) { |
934 | switch (st->type) { | |
587ff0fd | 935 | |
d62a17ae | 936 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: |
937 | rc |= subtlv_decode_remote_endpoint(st, | |
938 | &bet->st_endpoint); | |
939 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
940 | break; | |
587ff0fd | 941 | |
d62a17ae | 942 | default: |
943 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
944 | st->type); | |
945 | rc |= -1; | |
946 | break; | |
947 | } | |
f4c89855 | 948 | } |
d62a17ae | 949 | return rc; |
f4c89855 LB |
950 | } |
951 | ||
d62a17ae | 952 | int tlv_to_bgp_encap_type_mpls_in_udp(struct bgp_attr_encap_subtlv *stlv, |
953 | struct bgp_encap_type_mpls_in_udp *bet) | |
f4c89855 | 954 | { |
d62a17ae | 955 | struct bgp_attr_encap_subtlv *st; |
956 | int rc = 0; | |
f4c89855 | 957 | |
d62a17ae | 958 | for (st = stlv; st; st = st->next) { |
959 | switch (st->type) { | |
587ff0fd | 960 | |
d62a17ae | 961 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: |
962 | rc |= subtlv_decode_remote_endpoint(st, | |
963 | &bet->st_endpoint); | |
964 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
965 | break; | |
587ff0fd | 966 | |
d62a17ae | 967 | default: |
968 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
969 | st->type); | |
970 | rc |= -1; | |
971 | break; | |
972 | } | |
f4c89855 | 973 | } |
d62a17ae | 974 | return rc; |
975 | } | |
976 | ||
977 | int tlv_to_bgp_encap_type_pbb( | |
978 | struct bgp_attr_encap_subtlv *stlv, /* subtlv chain */ | |
979 | struct bgp_encap_type_pbb *bet) /* caller-allocated */ | |
980 | { | |
981 | struct bgp_attr_encap_subtlv *st; | |
982 | int rc = 0; | |
983 | ||
984 | for (st = stlv; st; st = st->next) { | |
985 | switch (st->type) { | |
986 | case BGP_ENCAP_SUBTLV_TYPE_ENCAPSULATION: | |
987 | rc |= subtlv_decode_encap_pbb(st, &bet->st_encap); | |
988 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_ENCAP); | |
989 | break; | |
990 | ||
991 | case BGP_ENCAP_SUBTLV_TYPE_REMOTE_ENDPOINT: | |
992 | rc |= subtlv_decode_remote_endpoint(st, | |
993 | &bet->st_endpoint); | |
994 | SET_SUBTLV_FLAG(bet, BGP_TEA_SUBTLV_REMOTE_ENDPOINT); | |
995 | break; | |
996 | ||
997 | default: | |
998 | zlog_debug("%s: unexpected subtlv type %d", __func__, | |
999 | st->type); | |
1000 | rc |= -1; | |
1001 | break; | |
1002 | } | |
f4c89855 | 1003 | } |
d62a17ae | 1004 | return rc; |
f4c89855 | 1005 | } |