1 /* $FreeBSD$ */ 2 /* $KAME: pfkeyv2.h,v 1.37 2003/09/06 05:15:43 itojun Exp $ */ 3 4 /*- 5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the project nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 /* 34 * This file has been derived rfc 2367, 35 * And added some flags of SADB_KEY_FLAGS_ as SADB_X_EXT_. 36 * sakane@ydc.co.jp 37 */ 38 39 #ifndef _NET_PFKEYV2_H_ 40 #define _NET_PFKEYV2_H_ 41 42 /* 43 This file defines structures and symbols for the PF_KEY Version 2 44 key management interface. It was written at the U.S. Naval Research 45 Laboratory. This file is in the public domain. The authors ask that 46 you leave this credit intact on any copies of this file. 47 */ 48 #ifndef __PFKEY_V2_H 49 #define __PFKEY_V2_H 1 50 51 #define PF_KEY_V2 2 52 #define PFKEYV2_REVISION 199806L 53 54 #define SADB_RESERVED 0 55 #define SADB_GETSPI 1 56 #define SADB_UPDATE 2 57 #define SADB_ADD 3 58 #define SADB_DELETE 4 59 #define SADB_GET 5 60 #define SADB_ACQUIRE 6 61 #define SADB_REGISTER 7 62 #define SADB_EXPIRE 8 63 #define SADB_FLUSH 9 64 #define SADB_DUMP 10 65 #define SADB_X_PROMISC 11 66 #define SADB_X_PCHANGE 12 67 68 #define SADB_X_SPDUPDATE 13 69 #define SADB_X_SPDADD 14 70 #define SADB_X_SPDDELETE 15 /* by policy index */ 71 #define SADB_X_SPDGET 16 72 #define SADB_X_SPDACQUIRE 17 73 #define SADB_X_SPDDUMP 18 74 #define SADB_X_SPDFLUSH 19 75 #define SADB_X_SPDSETIDX 20 76 #define SADB_X_SPDEXPIRE 21 77 #define SADB_X_SPDDELETE2 22 /* by policy id */ 78 #define SADB_MAX 22 79 80 struct sadb_msg { 81 u_int8_t sadb_msg_version; 82 u_int8_t sadb_msg_type; 83 u_int8_t sadb_msg_errno; 84 u_int8_t sadb_msg_satype; 85 u_int16_t sadb_msg_len; 86 u_int16_t sadb_msg_reserved; 87 u_int32_t sadb_msg_seq; 88 u_int32_t sadb_msg_pid; 89 }; 90 91 struct sadb_ext { 92 u_int16_t sadb_ext_len; 93 u_int16_t sadb_ext_type; 94 }; 95 96 struct sadb_sa { 97 u_int16_t sadb_sa_len; 98 u_int16_t sadb_sa_exttype; 99 u_int32_t sadb_sa_spi; 100 u_int8_t sadb_sa_replay; 101 u_int8_t sadb_sa_state; 102 u_int8_t sadb_sa_auth; 103 u_int8_t sadb_sa_encrypt; 104 u_int32_t sadb_sa_flags; 105 }; 106 107 struct sadb_lifetime { 108 u_int16_t sadb_lifetime_len; 109 u_int16_t sadb_lifetime_exttype; 110 u_int32_t sadb_lifetime_allocations; 111 u_int64_t sadb_lifetime_bytes; 112 u_int64_t sadb_lifetime_addtime; 113 u_int64_t sadb_lifetime_usetime; 114 }; 115 116 struct sadb_address { 117 u_int16_t sadb_address_len; 118 u_int16_t sadb_address_exttype; 119 u_int8_t sadb_address_proto; 120 u_int8_t sadb_address_prefixlen; 121 u_int16_t sadb_address_reserved; 122 }; 123 124 struct sadb_key { 125 u_int16_t sadb_key_len; 126 u_int16_t sadb_key_exttype; 127 u_int16_t sadb_key_bits; 128 u_int16_t sadb_key_reserved; 129 }; 130 131 struct sadb_ident { 132 u_int16_t sadb_ident_len; 133 u_int16_t sadb_ident_exttype; 134 u_int16_t sadb_ident_type; 135 u_int16_t sadb_ident_reserved; 136 u_int64_t sadb_ident_id; 137 }; 138 139 struct sadb_sens { 140 u_int16_t sadb_sens_len; 141 u_int16_t sadb_sens_exttype; 142 u_int32_t sadb_sens_dpd; 143 u_int8_t sadb_sens_sens_level; 144 u_int8_t sadb_sens_sens_len; 145 u_int8_t sadb_sens_integ_level; 146 u_int8_t sadb_sens_integ_len; 147 u_int32_t sadb_sens_reserved; 148 }; 149 150 struct sadb_prop { 151 u_int16_t sadb_prop_len; 152 u_int16_t sadb_prop_exttype; 153 u_int8_t sadb_prop_replay; 154 u_int8_t sadb_prop_reserved[3]; 155 }; 156 157 struct sadb_comb { 158 u_int8_t sadb_comb_auth; 159 u_int8_t sadb_comb_encrypt; 160 u_int16_t sadb_comb_flags; 161 u_int16_t sadb_comb_auth_minbits; 162 u_int16_t sadb_comb_auth_maxbits; 163 u_int16_t sadb_comb_encrypt_minbits; 164 u_int16_t sadb_comb_encrypt_maxbits; 165 u_int32_t sadb_comb_reserved; 166 u_int32_t sadb_comb_soft_allocations; 167 u_int32_t sadb_comb_hard_allocations; 168 u_int64_t sadb_comb_soft_bytes; 169 u_int64_t sadb_comb_hard_bytes; 170 u_int64_t sadb_comb_soft_addtime; 171 u_int64_t sadb_comb_hard_addtime; 172 u_int64_t sadb_comb_soft_usetime; 173 u_int64_t sadb_comb_hard_usetime; 174 }; 175 176 struct sadb_supported { 177 u_int16_t sadb_supported_len; 178 u_int16_t sadb_supported_exttype; 179 u_int32_t sadb_supported_reserved; 180 }; 181 182 struct sadb_alg { 183 u_int8_t sadb_alg_id; 184 u_int8_t sadb_alg_ivlen; 185 u_int16_t sadb_alg_minbits; 186 u_int16_t sadb_alg_maxbits; 187 u_int16_t sadb_alg_reserved; 188 }; 189 190 struct sadb_spirange { 191 u_int16_t sadb_spirange_len; 192 u_int16_t sadb_spirange_exttype; 193 u_int32_t sadb_spirange_min; 194 u_int32_t sadb_spirange_max; 195 u_int32_t sadb_spirange_reserved; 196 }; 197 198 struct sadb_x_kmprivate { 199 u_int16_t sadb_x_kmprivate_len; 200 u_int16_t sadb_x_kmprivate_exttype; 201 u_int32_t sadb_x_kmprivate_reserved; 202 }; 203 204 /* 205 * XXX Additional SA Extension. 206 * mode: tunnel or transport 207 * reqid: to make SA unique nevertheless the address pair of SA are same. 208 * Mainly it's for VPN. 209 */ 210 struct sadb_x_sa2 { 211 u_int16_t sadb_x_sa2_len; 212 u_int16_t sadb_x_sa2_exttype; 213 u_int8_t sadb_x_sa2_mode; 214 u_int8_t sadb_x_sa2_reserved1; 215 u_int16_t sadb_x_sa2_reserved2; 216 u_int32_t sadb_x_sa2_sequence; /* lowermost 32bit of sequence number */ 217 u_int32_t sadb_x_sa2_reqid; 218 }; 219 220 /* XXX Policy Extension */ 221 /* sizeof(struct sadb_x_policy) == 16 */ 222 struct sadb_x_policy { 223 u_int16_t sadb_x_policy_len; 224 u_int16_t sadb_x_policy_exttype; 225 u_int16_t sadb_x_policy_type; /* See policy type of ipsec.h */ 226 u_int8_t sadb_x_policy_dir; /* direction, see ipsec.h */ 227 u_int8_t sadb_x_policy_reserved; 228 u_int32_t sadb_x_policy_id; 229 u_int32_t sadb_x_policy_reserved2; 230 }; 231 /* 232 * When policy_type == IPSEC, it is followed by some of 233 * the ipsec policy request. 234 * [total length of ipsec policy requests] 235 * = (sadb_x_policy_len * sizeof(uint64_t) - sizeof(struct sadb_x_policy)) 236 */ 237 238 /* XXX IPsec Policy Request Extension */ 239 /* 240 * This structure is aligned 8 bytes. 241 */ 242 struct sadb_x_ipsecrequest { 243 u_int16_t sadb_x_ipsecrequest_len; /* structure length in 64 bits. */ 244 u_int16_t sadb_x_ipsecrequest_proto; /* See ipsec.h */ 245 u_int8_t sadb_x_ipsecrequest_mode; /* See IPSEC_MODE_XX in ipsec.h. */ 246 u_int8_t sadb_x_ipsecrequest_level; /* See IPSEC_LEVEL_XX in ipsec.h */ 247 u_int16_t sadb_x_ipsecrequest_reqid; /* See ipsec.h */ 248 249 /* 250 * followed by source IP address of SA, and immediately followed by 251 * destination IP address of SA. These encoded into two of sockaddr 252 * structure without any padding. Must set each sa_len exactly. 253 * Each of length of the sockaddr structure are not aligned to 64bits, 254 * but sum of x_request and addresses is aligned to 64bits. 255 */ 256 }; 257 258 /* NAT-Traversal type, see RFC 3948 (and drafts). */ 259 /* sizeof(struct sadb_x_nat_t_type) == 8 */ 260 struct sadb_x_nat_t_type { 261 u_int16_t sadb_x_nat_t_type_len; 262 u_int16_t sadb_x_nat_t_type_exttype; 263 u_int8_t sadb_x_nat_t_type_type; 264 u_int8_t sadb_x_nat_t_type_reserved[3]; 265 }; 266 267 /* NAT-Traversal source or destination port. */ 268 /* sizeof(struct sadb_x_nat_t_port) == 8 */ 269 struct sadb_x_nat_t_port { 270 u_int16_t sadb_x_nat_t_port_len; 271 u_int16_t sadb_x_nat_t_port_exttype; 272 u_int16_t sadb_x_nat_t_port_port; 273 u_int16_t sadb_x_nat_t_port_reserved; 274 }; 275 276 /* ESP fragmentation size. */ 277 /* sizeof(struct sadb_x_nat_t_frag) == 8 */ 278 struct sadb_x_nat_t_frag { 279 u_int16_t sadb_x_nat_t_frag_len; 280 u_int16_t sadb_x_nat_t_frag_exttype; 281 u_int16_t sadb_x_nat_t_frag_fraglen; 282 u_int16_t sadb_x_nat_t_frag_reserved; 283 }; 284 285 286 #define SADB_EXT_RESERVED 0 287 #define SADB_EXT_SA 1 288 #define SADB_EXT_LIFETIME_CURRENT 2 289 #define SADB_EXT_LIFETIME_HARD 3 290 #define SADB_EXT_LIFETIME_SOFT 4 291 #define SADB_EXT_ADDRESS_SRC 5 292 #define SADB_EXT_ADDRESS_DST 6 293 #define SADB_EXT_ADDRESS_PROXY 7 294 #define SADB_EXT_KEY_AUTH 8 295 #define SADB_EXT_KEY_ENCRYPT 9 296 #define SADB_EXT_IDENTITY_SRC 10 297 #define SADB_EXT_IDENTITY_DST 11 298 #define SADB_EXT_SENSITIVITY 12 299 #define SADB_EXT_PROPOSAL 13 300 #define SADB_EXT_SUPPORTED_AUTH 14 301 #define SADB_EXT_SUPPORTED_ENCRYPT 15 302 #define SADB_EXT_SPIRANGE 16 303 #define SADB_X_EXT_KMPRIVATE 17 304 #define SADB_X_EXT_POLICY 18 305 #define SADB_X_EXT_SA2 19 306 #define SADB_X_EXT_NAT_T_TYPE 20 307 #define SADB_X_EXT_NAT_T_SPORT 21 308 #define SADB_X_EXT_NAT_T_DPORT 22 309 #define SADB_X_EXT_NAT_T_OA 23 /* Deprecated. */ 310 #define SADB_X_EXT_NAT_T_OAI 23 /* Peer's NAT_OA for src of SA. */ 311 #define SADB_X_EXT_NAT_T_OAR 24 /* Peer's NAT_OA for dst of SA. */ 312 #define SADB_X_EXT_NAT_T_FRAG 25 /* Manual MTU override. */ 313 #define SADB_EXT_MAX 25 314 315 #define SADB_SATYPE_UNSPEC 0 316 #define SADB_SATYPE_AH 2 317 #define SADB_SATYPE_ESP 3 318 #define SADB_SATYPE_RSVP 5 319 #define SADB_SATYPE_OSPFV2 6 320 #define SADB_SATYPE_RIPV2 7 321 #define SADB_SATYPE_MIP 8 322 #define SADB_X_SATYPE_IPCOMP 9 323 /*#define SADB_X_SATYPE_POLICY 10 obsolete, do not reuse */ 324 #define SADB_X_SATYPE_TCPSIGNATURE 11 325 #define SADB_SATYPE_MAX 12 326 327 #define SADB_SASTATE_LARVAL 0 328 #define SADB_SASTATE_MATURE 1 329 #define SADB_SASTATE_DYING 2 330 #define SADB_SASTATE_DEAD 3 331 #define SADB_SASTATE_MAX 3 332 333 #define SADB_SAFLAGS_PFS 1 334 335 /* RFC2367 numbers - meets RFC2407 */ 336 #define SADB_AALG_NONE 0 337 #define SADB_AALG_MD5HMAC 2 338 #define SADB_AALG_SHA1HMAC 3 339 #define SADB_AALG_MAX 252 340 /* private allocations - based on RFC2407/IANA assignment */ 341 #define SADB_X_AALG_SHA2_256 5 342 #define SADB_X_AALG_SHA2_384 6 343 #define SADB_X_AALG_SHA2_512 7 344 #define SADB_X_AALG_RIPEMD160HMAC 8 345 #define SADB_X_AALG_AES_XCBC_MAC 9 /* draft-ietf-ipsec-ciph-aes-xcbc-mac-04 */ 346 /* private allocations should use 249-255 (RFC2407) */ 347 #define SADB_X_AALG_MD5 249 /* Keyed MD5 */ 348 #define SADB_X_AALG_SHA 250 /* Keyed SHA */ 349 #define SADB_X_AALG_NULL 251 /* null authentication */ 350 #define SADB_X_AALG_TCP_MD5 252 /* Keyed TCP-MD5 (RFC2385) */ 351 352 /* RFC2367 numbers - meets RFC2407 */ 353 #define SADB_EALG_NONE 0 354 #define SADB_EALG_DESCBC 2 355 #define SADB_EALG_3DESCBC 3 356 #define SADB_EALG_NULL 11 357 #define SADB_EALG_MAX 250 358 /* private allocations - based on RFC2407/IANA assignment */ 359 #define SADB_X_EALG_CAST128CBC 6 360 #define SADB_X_EALG_BLOWFISHCBC 7 361 #define SADB_X_EALG_RIJNDAELCBC 12 362 #define SADB_X_EALG_AES 12 363 /* private allocations - based on RFC4312/IANA assignment */ 364 #define SADB_X_EALG_CAMELLIACBC 22 365 /* private allocations should use 249-255 (RFC2407) */ 366 #define SADB_X_EALG_SKIPJACK 249 /*250*/ /* for IPSEC */ 367 #define SADB_X_EALG_AESCTR 250 /*249*/ /* draft-ietf-ipsec-ciph-aes-ctr-03 */ 368 369 /* private allocations - based on RFC2407/IANA assignment */ 370 #define SADB_X_CALG_NONE 0 371 #define SADB_X_CALG_OUI 1 372 #define SADB_X_CALG_DEFLATE 2 373 #define SADB_X_CALG_LZS 3 374 #define SADB_X_CALG_MAX 4 375 376 #define SADB_IDENTTYPE_RESERVED 0 377 #define SADB_IDENTTYPE_PREFIX 1 378 #define SADB_IDENTTYPE_FQDN 2 379 #define SADB_IDENTTYPE_USERFQDN 3 380 #define SADB_X_IDENTTYPE_ADDR 4 381 #define SADB_IDENTTYPE_MAX 4 382 383 /* `flags' in sadb_sa structure holds followings */ 384 #define SADB_X_EXT_NONE 0x0000 /* i.e. new format. */ 385 #define SADB_X_EXT_OLD 0x0001 /* old format. */ 386 387 #define SADB_X_EXT_IV4B 0x0010 /* IV length of 4 bytes in use */ 388 #define SADB_X_EXT_DERIV 0x0020 /* DES derived */ 389 #define SADB_X_EXT_CYCSEQ 0x0040 /* allowing to cyclic sequence. */ 390 391 /* three of followings are exclusive flags each them */ 392 #define SADB_X_EXT_PSEQ 0x0000 /* sequencial padding for ESP */ 393 #define SADB_X_EXT_PRAND 0x0100 /* random padding for ESP */ 394 #define SADB_X_EXT_PZERO 0x0200 /* zero padding for ESP */ 395 #define SADB_X_EXT_PMASK 0x0300 /* mask for padding flag */ 396 397 #if 1 398 #define SADB_X_EXT_RAWCPI 0x0080 /* use well known CPI (IPComp) */ 399 #endif 400 401 #define SADB_KEY_FLAGS_MAX 0x0fff 402 403 /* SPI size for PF_KEYv2 */ 404 #define PFKEY_SPI_SIZE sizeof(u_int32_t) 405 406 /* Identifier for menber of lifetime structure */ 407 #define SADB_X_LIFETIME_ALLOCATIONS 0 408 #define SADB_X_LIFETIME_BYTES 1 409 #define SADB_X_LIFETIME_ADDTIME 2 410 #define SADB_X_LIFETIME_USETIME 3 411 412 /* The rate for SOFT lifetime against HARD one. */ 413 #define PFKEY_SOFT_LIFETIME_RATE 80 414 415 /* Utilities */ 416 #define PFKEY_ALIGN8(a) (1 + (((a) - 1) | (8 - 1))) 417 #define PFKEY_EXTLEN(msg) \ 418 PFKEY_UNUNIT64(((struct sadb_ext *)(msg))->sadb_ext_len) 419 #define PFKEY_ADDR_PREFIX(ext) \ 420 (((struct sadb_address *)(ext))->sadb_address_prefixlen) 421 #define PFKEY_ADDR_PROTO(ext) \ 422 (((struct sadb_address *)(ext))->sadb_address_proto) 423 #define PFKEY_ADDR_SADDR(ext) \ 424 ((struct sockaddr *)((caddr_t)(ext) + sizeof(struct sadb_address))) 425 426 /* in 64bits */ 427 #define PFKEY_UNUNIT64(a) ((a) << 3) 428 #define PFKEY_UNIT64(a) ((a) >> 3) 429 430 #endif /* __PFKEY_V2_H */ 431 432 #endif /* _NET_PFKEYV2_H_ */ 433