1 /* $NetBSD: ipsec_doi.h,v 1.9 2006/12/09 05:52:57 manu Exp $ */ 2 3 /* Id: ipsec_doi.h,v 1.15 2006/08/11 16:06:30 vanhu Exp */ 4 5 /* 6 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the project nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef _IPSEC_DOI_H 35 #define _IPSEC_DOI_H 36 37 /* refered to RFC2407 */ 38 39 #define IPSEC_DOI 1 40 41 /* 4.2 IPSEC Situation Definition */ 42 #define IPSECDOI_SIT_IDENTITY_ONLY 0x00000001 43 #define IPSECDOI_SIT_SECRECY 0x00000002 44 #define IPSECDOI_SIT_INTEGRITY 0x00000004 45 46 /* 4.4.1 IPSEC Security Protocol Identifiers */ 47 /* 4.4.2 IPSEC ISAKMP Transform Values */ 48 #define IPSECDOI_PROTO_ISAKMP 1 49 #define IPSECDOI_KEY_IKE 1 50 51 /* 4.4.1 IPSEC Security Protocol Identifiers */ 52 #define IPSECDOI_PROTO_IPSEC_AH 2 53 /* 4.4.3 IPSEC AH Transform Values */ 54 #define IPSECDOI_AH_MD5 2 55 #define IPSECDOI_AH_SHA 3 56 #define IPSECDOI_AH_DES 4 57 #define IPSECDOI_AH_SHA256 5 58 #define IPSECDOI_AH_SHA384 6 59 #define IPSECDOI_AH_SHA512 7 60 61 /* 4.4.1 IPSEC Security Protocol Identifiers */ 62 #define IPSECDOI_PROTO_IPSEC_ESP 3 63 /* 4.4.4 IPSEC ESP Transform Identifiers */ 64 #define IPSECDOI_ESP_DES_IV64 1 65 #define IPSECDOI_ESP_DES 2 66 #define IPSECDOI_ESP_3DES 3 67 #define IPSECDOI_ESP_RC5 4 68 #define IPSECDOI_ESP_IDEA 5 69 #define IPSECDOI_ESP_CAST 6 70 #define IPSECDOI_ESP_BLOWFISH 7 71 #define IPSECDOI_ESP_3IDEA 8 72 #define IPSECDOI_ESP_DES_IV32 9 73 #define IPSECDOI_ESP_RC4 10 74 #define IPSECDOI_ESP_NULL 11 75 #define IPSECDOI_ESP_AES 12 76 #define IPSECDOI_ESP_CAMELLIA 22 77 #if 1 78 /* draft-ietf-ipsec-ciph-aes-cbc-00.txt */ 79 #define IPSECDOI_ESP_TWOFISH 253 80 #else 81 /* SSH uses these value for now */ 82 #define IPSECDOI_ESP_TWOFISH 250 83 #endif 84 85 /* 4.4.1 IPSEC Security Protocol Identifiers */ 86 #define IPSECDOI_PROTO_IPCOMP 4 87 /* 4.4.5 IPSEC IPCOMP Transform Identifiers */ 88 #define IPSECDOI_IPCOMP_OUI 1 89 #define IPSECDOI_IPCOMP_DEFLATE 2 90 #define IPSECDOI_IPCOMP_LZS 3 91 92 /* 4.5 IPSEC Security Association Attributes */ 93 /* NOTE: default value is not included in a packet. */ 94 #define IPSECDOI_ATTR_SA_LD_TYPE 1 /* B */ 95 #define IPSECDOI_ATTR_SA_LD_TYPE_DEFAULT 1 96 #define IPSECDOI_ATTR_SA_LD_TYPE_SEC 1 97 #define IPSECDOI_ATTR_SA_LD_TYPE_KB 2 98 #define IPSECDOI_ATTR_SA_LD_TYPE_MAX 3 99 #define IPSECDOI_ATTR_SA_LD 2 /* V */ 100 #define IPSECDOI_ATTR_SA_LD_SEC_DEFAULT 28800 /* 8 hours */ 101 #define IPSECDOI_ATTR_SA_LD_KB_MAX (~(1 << ((sizeof(int) << 3) - 1))) 102 #define IPSECDOI_ATTR_GRP_DESC 3 /* B */ 103 #define IPSECDOI_ATTR_ENC_MODE 4 /* B */ 104 /* default value: host dependent */ 105 #define IPSECDOI_ATTR_ENC_MODE_ANY 0 /* NOTE:internal use */ 106 #define IPSECDOI_ATTR_ENC_MODE_TUNNEL 1 107 #define IPSECDOI_ATTR_ENC_MODE_TRNS 2 108 109 /* NAT-T draft-ietf-ipsec-nat-t-ike-05 and later */ 110 #define IPSECDOI_ATTR_ENC_MODE_UDPTUNNEL_RFC 3 111 #define IPSECDOI_ATTR_ENC_MODE_UDPTRNS_RFC 4 112 113 /* NAT-T up to draft-ietf-ipsec-nat-t-ike-04 */ 114 #define IPSECDOI_ATTR_ENC_MODE_UDPTUNNEL_DRAFT 61443 115 #define IPSECDOI_ATTR_ENC_MODE_UDPTRNS_DRAFT 61444 116 117 #define IPSECDOI_ATTR_AUTH 5 /* B */ 118 /* 0 means not to use authentication. */ 119 #define IPSECDOI_ATTR_AUTH_HMAC_MD5 1 120 #define IPSECDOI_ATTR_AUTH_HMAC_SHA1 2 121 #define IPSECDOI_ATTR_AUTH_DES_MAC 3 122 #define IPSECDOI_ATTR_AUTH_KPDK 4 /*RFC-1826(Key/Pad/Data/Key)*/ 123 #define IPSECDOI_ATTR_AUTH_HMAC_SHA2_256 5 124 #define IPSECDOI_ATTR_AUTH_HMAC_SHA2_384 6 125 #define IPSECDOI_ATTR_AUTH_HMAC_SHA2_512 7 126 #define IPSECDOI_ATTR_AUTH_NONE 254 /* NOTE:internal use */ 127 /* 128 * When negotiating ESP without authentication, the Auth 129 * Algorithm attribute MUST NOT be included in the proposal. 130 * When negotiating ESP without confidentiality, the Auth 131 * Algorithm attribute MUST be included in the proposal and 132 * the ESP transform ID must be ESP_NULL. 133 */ 134 #define IPSECDOI_ATTR_KEY_LENGTH 6 /* B */ 135 #define IPSECDOI_ATTR_KEY_ROUNDS 7 /* B */ 136 #define IPSECDOI_ATTR_COMP_DICT_SIZE 8 /* B */ 137 #define IPSECDOI_ATTR_COMP_PRIVALG 9 /* V */ 138 139 #ifdef HAVE_SECCTX 140 #define IPSECDOI_ATTR_SECCTX 10 /* V */ 141 #endif 142 143 /* 4.6.1 Security Association Payload */ 144 struct ipsecdoi_pl_sa { 145 struct isakmp_gen h; 146 struct ipsecdoi_sa_b { 147 u_int32_t doi; /* Domain of Interpretation */ 148 u_int32_t sit; /* Situation */ 149 } b; 150 /* followed by Leveled Domain Identifier and so on. */ 151 } __attribute__((__packed__)); 152 153 struct ipsecdoi_secrecy_h { 154 u_int16_t len; 155 u_int16_t reserved; 156 /* followed by the value */ 157 } __attribute__((__packed__)); 158 159 /* 4.6.2 Identification Payload Content */ 160 struct ipsecdoi_pl_id { 161 struct isakmp_gen h; 162 struct ipsecdoi_id_b { 163 u_int8_t type; /* ID Type */ 164 u_int8_t proto_id; /* Protocol ID */ 165 u_int16_t port; /* Port */ 166 } b; 167 /* followed by Identification Data */ 168 } __attribute__((__packed__)); 169 170 #define IPSECDOI_ID_IPV4_ADDR 1 171 #define IPSECDOI_ID_FQDN 2 172 #define IPSECDOI_ID_USER_FQDN 3 173 #define IPSECDOI_ID_IPV4_ADDR_SUBNET 4 174 #define IPSECDOI_ID_IPV6_ADDR 5 175 #define IPSECDOI_ID_IPV6_ADDR_SUBNET 6 176 #define IPSECDOI_ID_IPV4_ADDR_RANGE 7 177 #define IPSECDOI_ID_IPV6_ADDR_RANGE 8 178 #define IPSECDOI_ID_DER_ASN1_DN 9 179 #define IPSECDOI_ID_DER_ASN1_GN 10 180 #define IPSECDOI_ID_KEY_ID 11 181 182 /* compressing doi type, it's internal use. */ 183 #define IDTYPE_UNDEFINED 0 184 #define IDTYPE_FQDN 1 185 #define IDTYPE_USERFQDN 2 186 #define IDTYPE_KEYID 3 187 #define IDTYPE_ADDRESS 4 188 #define IDTYPE_ASN1DN 5 189 #define IDTYPE_SUBNET 6 190 191 /* qualifiers for KEYID (and maybe others) */ 192 #define IDQUAL_UNSPEC 0 193 #define IDQUAL_FILE 1 194 #define IDQUAL_TAG 2 195 196 /* The use for checking proposal payload. This is not exchange type. */ 197 #define IPSECDOI_TYPE_PH1 0 198 #define IPSECDOI_TYPE_PH2 1 199 200 struct isakmpsa; 201 struct ipsecdoi_pl_sa; 202 struct saprop; 203 struct saproto; 204 struct satrns; 205 struct prop_pair; 206 207 extern int ipsecdoi_checkph1proposal __P((vchar_t *, struct ph1handle *)); 208 extern int ipsecdoi_selectph2proposal __P((struct ph2handle *)); 209 extern int ipsecdoi_checkph2proposal __P((struct ph2handle *)); 210 211 extern struct prop_pair **get_proppair __P((vchar_t *, int)); 212 extern vchar_t *get_sabyproppair __P((struct prop_pair *, struct ph1handle *)); 213 extern int ipsecdoi_updatespi __P((struct ph2handle *iph2)); 214 extern vchar_t *get_sabysaprop __P((struct saprop *, vchar_t *)); 215 extern int ipsecdoi_chkcmpids( const vchar_t *, const vchar_t *, int ); 216 extern int ipsecdoi_checkid1 __P((struct ph1handle *)); 217 extern int ipsecdoi_setid1 __P((struct ph1handle *)); 218 extern int set_identifier __P((vchar_t **, int, vchar_t *)); 219 extern int set_identifier_qual __P((vchar_t **, int, vchar_t *, int)); 220 extern int ipsecdoi_setid2 __P((struct ph2handle *)); 221 extern vchar_t *ipsecdoi_sockaddr2id __P((struct sockaddr *, u_int, u_int)); 222 extern int ipsecdoi_id2sockaddr __P((vchar_t *, struct sockaddr *, 223 u_int8_t *, u_int16_t *)); 224 extern char *ipsecdoi_id2str __P((const vchar_t *)); 225 extern vchar_t *ipsecdoi_sockrange2id __P(( struct sockaddr *, 226 struct sockaddr *, u_int)); 227 228 extern vchar_t *ipsecdoi_setph1proposal __P((struct isakmpsa *)); 229 extern int ipsecdoi_setph2proposal __P((struct ph2handle *)); 230 extern int ipsecdoi_transportmode __P((struct saprop *)); 231 extern int ipsecdoi_get_defaultlifetime __P((void)); 232 extern int ipsecdoi_checkalgtypes __P((int, int, int, int)); 233 extern int ipproto2doi __P((int)); 234 extern int doi2ipproto __P((int)); 235 236 extern int ipsecdoi_t2satrns __P((struct isakmp_pl_t *, 237 struct saprop *, struct saproto *, struct satrns *)); 238 extern int ipsecdoi_authalg2trnsid __P((int)); 239 extern int idtype2doi __P((int)); 240 extern int doi2idtype __P((int)); 241 242 243 #endif /* _IPSEC_DOI_H */ 244