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|
/* $OpenBSD: ike.h,v 1.9 2004/07/29 10:29:44 ho Exp $ */
/*
* Copyright (c) 2001 Håkan Olsson. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define ISAKMP_DOI 0
#define IPSEC_DOI 1
#define PROTO_ISAKMP 1
#define PROTO_IPSEC_AH 2
#define PROTO_IPSEC_ESP 3
#define PROTO_IPCOMP 4
#define IKE_ATTR_ENCRYPTION_ALGORITHM 1
#define IKE_ATTR_HASH_ALGORITHM 2
#define IKE_ATTR_AUTHENTICATION_METHOD 3
#define IKE_ATTR_GROUP_DESC 4
#define IKE_ATTR_GROUP_TYPE 5
#define IKE_ATTR_LIFE_TYPE 11
#define IKE_PROTO_INITIALIZER \
{ "RESERVED", "ISAKMP", "IPSEC_AH", "IPSEC_ESP", "IPCOMP", \
}
#define IKE_ATTR_ENCRYPT_INITIALIZER \
{ "NONE", "DES_CBC", "IDEA_CBC", "BLOWFISH_CBC", \
"RC5_R16_B64_CBC", "3DES_CBC", "CAST_CBC", "AES_CBC", \
}
#define IKE_ATTR_HASH_INITIALIZER \
{ "NONE", "MD5", "SHA", "TIGER", \
"SHA2_256", "SHA2_384", "SHA2_512", \
}
#define IKE_ATTR_AUTH_INITIALIZER \
{ "NONE", "PRE_SHARED", "DSS", "RSA_SIG", \
"RSA_ENC", "RSA_ENC_REV", \
}
#define IKE_ATTR_GROUP_DESC_INITIALIZER \
{ "NONE", "MODP_768", "MODP_1024", \
"E2CN_155", "E2CN_185", "MODP_1536", \
}
#define IKE_ATTR_GROUP_INITIALIZER \
{ "NONE", "MODP", "ECP", "E2CN", \
}
#define IKE_ATTR_SA_DURATION_INITIALIZER \
{ "NONE", "SECONDS", "KILOBYTES", \
}
#define IKE_ATTR_INITIALIZER \
{ "NONE", /* 0 (not in RFC) */ \
"ENCRYPTION_ALGORITHM", /* 1 */ \
"HASH_ALGORITHM", /* 2 */ \
"AUTHENTICATION_METHOD", /* 3 */ \
"GROUP_DESCRIPTION", /* 4 */ \
"GROUP_TYPE", /* 5 */ \
"GROUP_PRIME", /* 6 */ \
"GROUP_GENERATOR_1", /* 7 */ \
"GROUP_GENERATOR_2", /* 8 */ \
"GROUP_CURVE_1", /* 9 */ \
"GROUP_CURVE_2", /* 10 */ \
"LIFE_TYPE", /* 11 */ \
"LIFE_DURATION", /* 12 */ \
"PRF", /* 13 */ \
"KEY_LENGTH", /* 14 */ \
"FIELD_SIZE", /* 15 */ \
"GROUP_ORDER", /* 16 */ \
}
#define IKE_SITUATION_IDENTITY_ONLY 1
#define IKE_SITUATION_SECRECY 2
#define IKE_SITUATION_INTEGRITY 4
/* Mask is all the above, i.e 1+2+4 = 7 */
#define IKE_SITUATION_MASK 7
#define PAYLOAD_NONE 0
#define PAYLOAD_SA 1
#define PAYLOAD_PROPOSAL 2
#define PAYLOAD_TRANSFORM 3
#define PAYLOAD_KE 4
#define PAYLOAD_ID 5
#define PAYLOAD_CERT 6
#define PAYLOAD_CERTREQUEST 7
#define PAYLOAD_HASH 8
#define PAYLOAD_SIG 9
#define PAYLOAD_NONCE 10
#define PAYLOAD_NOTIFICATION 11
#define PAYLOAD_DELETE 12
#define PAYLOAD_VENDOR 13
#define PAYLOAD_ATTRIBUTE 14
#define PAYLOAD_RESERVED_MIN 15
#define PAYLOAD_PRIVATE_MIN 128
#define PAYLOAD_NAT_D 130
#define PAYLOAD_NAT_OA 131
#define PAYLOAD_PRIVATE_MAX 132
#define IKE_PAYLOAD_TYPES_INITIALIZER \
{ "NONE", /* 0 */ \
"SA", /* 1 */ \
"PROPOSAL", /* 2 */ \
"TRANSFORM", /* 3 */ \
"KEY_EXCH", /* 4 */ \
"ID", /* 5 */ \
"CERT", /* 6 */ \
"CERTREQUEST", /* 7 */ \
"HASH", /* 8 */ \
"SIG", /* 9 */ \
"NONCE", /* 10 */ \
"NOTIFICATION", /* 11 */ \
"DELETE", /* 12 */ \
"VENDOR", /* 13 */ \
"ATTRIBUTE", /* 14 (ikecfg) */ \
}
#if 0
"SAK", /* 15 (RFC 3547) */ \
"SAT", /* 16 (RFC 3547) */ \
"KD", /* 17 (RFC 3547) */ \
"SEQ", /* 18 (RFC 3547) */ \
"POP", /* 19 (RFC 3547) */ \
"SAT", /* 16 (RFC 3547) */ \
#endif
#define IKE_PRIVATE_PAYLOAD_TYPES_INITIALIZER \
{ "NONE", /* 128 */ \
"<unknown 129>", /* 129 */ \
"NAT-D", /* 130 (draft-ietf-ipsec-nat-t-ike-03) */ \
"NAT-OA", /* 131 (draft-ietf-ipsec-nat-t-ike-03) */ \
}
/* Exchange types */
#define EXCHANGE_NONE 0
#define EXCHANGE_BASE 1
#define EXCHANGE_ID_PROT 2
#define EXCHANGE_AUTH_ONLY 3
#define EXCHANGE_AGGRESSIVE 4
#define EXCHANGE_INFO 5
#define EXCHANGE_TRANSACTION 6
#define EXCHANGE_QUICK_MODE 32
#define EXCHANGE_NEW_GROUP_MODE 33
/* Exchange types */
#define IKE_EXCHANGE_TYPES_INITIALIZER \
{ "NONE", /* 0 */ \
"BASE", /* 1 */ \
"ID_PROT", /* 2 */ \
"AUTH_ONLY", /* 3 */ \
"AGGRESSIVE", /* 4 */ \
"INFO", /* 5 */ \
"TRANSACTION", /* 6 (ikecfg) */ \
/* step up to type 32 with unknowns */ \
"unknown", "unknown", "unknown", "unknown", \
"unknown", "unknown", "unknown", "unknown", \
"unknown", "unknown", "unknown", "unknown", \
"unknown", "unknown", "unknown", "unknown", \
"unknown", "unknown", "unknown", "unknown", \
"unknown", "unknown", "unknown", "unknown", \
"unknown", \
"QUICK_MODE", /* 32 */ \
"NEW_GROUP_MODE", /* 33 */ \
}
#define FLAGS_ENCRYPTION 1
#define FLAGS_COMMIT 2
#define FLAGS_AUTH_ONLY 4
#define CERT_NONE 0
#define CERT_PKCS 1
#define CERT_PGP 2
#define CERT_DNS 3
#define CERT_X509_SIG 4
#define CERT_X509_KE 5
#define CERT_KERBEROS 6
#define CERT_CRL 7
#define CERT_ARL 8
#define CERT_SPKI 9
#define CERT_X509_ATTR 10
#define NOTIFY_INVALID_PAYLOAD_TYPE 1
#define NOTIFY_DOI_NOT_SUPPORTED 2
#define NOTIFY_SITUATION_NOT_SUPPORTED 3
#define NOTIFY_INVALID_COOKIE 4
#define NOTIFY_INVALID_MAJOR_VERSION 5
#define NOTIFY_INVALID_MINOR_VERSION 6
#define NOTIFY_INVALID_EXCHANGE_TYPE 7
#define NOTIFY_INVALID_FLAGS 8
#define NOTIFY_INVALID_MESSAGE_ID 9
#define NOTIFY_INVALID_PROTOCOL_ID 10
#define NOTIFY_INVALID_SPI 11
#define NOTIFY_INVALID_TRANSFORM_ID 12
#define NOTIFY_ATTRIBUTES_NOT_SUPPORTED 13
#define NOTIFY_NO_PROPOSAL_CHOSEN 14
#define NOTIFY_BAD_PROPOSAL_SYNTAX 15
#define NOTIFY_PAYLOAD_MALFORMED 16
#define NOTIFY_INVALID_KEY_INFORMATION 17
#define NOTIFY_INVALID_ID_INFORMATION 18
#define NOTIFY_INVALID_CERT_ENCODING 19
#define NOTIFY_INVALID_CERTIFICATE 20
#define NOTIFY_CERT_TYPE_UNSUPPORTED 21
#define NOTIFY_INVALID_CERT_AUTHORITY 22
#define NOTIFY_INVALID_HASH_INFORMATION 23
#define NOTIFY_AUTHENTICATION_FAILED 24
#define NOTIFY_INVALID_SIGNATURE 25
#define NOTIFY_ADDRESS_NOTIFICATION 26
#define NOTIFY_NOTIFY_SA_LIFETIME 27
#define NOTIFY_CERTIFICATE_UNAVAILABLE 28
#define NOTIFY_UNSUPPORTED_EXCHANGE_TYPE 29
#define NOTIFY_UNEQUAL_PAYLOAD_LENGTHS 30
#define IKE_NOTIFY_TYPES_INITIALIZER \
{ "", \
"INVALID PAYLOAD TYPE", \
"DOI NOT SUPPORTED", \
"SITUATION NOT SUPPORTED", \
"INVALID COOKIE", \
"INVALID MAJOR VERSION", \
"INVALID MINOR VERSION", \
"INVALID EXCHANGE TYPE", \
"INVALID FLAGS", \
"INVALID MESSAGE ID", \
"INVALID PROTOCOL ID", \
"INVALID SPI", \
"INVALID TRANSFORM ID", \
"ATTRIBUTES NOT SUPPORTED", \
"NO PROPOSAL CHOSEN", \
"BAD PROPOSAL SYNTAX", \
"PAYLOAD MALFORMED", \
"INVALID KEY INFORMATION", \
"INVALID ID INFORMATION", \
"INVALID CERT ENCODING", \
"INVALID CERTIFICATE", \
"CERT TYPE UNSUPPORTED", \
"INVALID CERT AUTHORITY", \
"INVALID HASH INFORMATION", \
"AUTHENTICATION FAILED", \
"INVALID SIGNATURE", \
"ADDRESS NOTIFICATION", \
"NOTIFY SA LIFETIME", \
"CERTIFICATE UNAVAILABLE", \
"UNSUPPORTED EXCHANGE TYPE", \
"UNEQUAL PAYLOAD LENGTHS", \
}
/* RFC 2407, 4.6.3 */
#define NOTIFY_IPSEC_RESPONDER_LIFETIME 24576
#define NOTIFY_IPSEC_REPLAY_STATUS 24577
#define NOTIFY_IPSEC_INITIAL_CONTACT 24578
/* RFC 3706, Dead Peer Detection */
#define NOTIFY_STATUS_DPD_R_U_THERE 36136
#define NOTIFY_STATUS_DPD_R_U_THERE_ACK 36137
#define IPSEC_ID_RESERVED 0
#define IPSEC_ID_IPV4_ADDR 1
#define IPSEC_ID_FQDN 2
#define IPSEC_ID_USER_FQDN 3
#define IPSEC_ID_IPV4_ADDR_SUBNET 4
#define IPSEC_ID_IPV6_ADDR 5
#define IPSEC_ID_IPV6_ADDR_SUBNET 6
#define IPSEC_ID_IPV4_ADDR_RANGE 7
#define IPSEC_ID_IPV6_ADDR_RANGE 8
#define IPSEC_ID_DER_ASN1_DN 9
#define IPSEC_ID_DER_ASN1_GN 10
#define IPSEC_ID_KEY_ID 11
#define IPSEC_ID_TYPE_INITIALIZER \
{ "RESERVED", \
"IPV4_ADDR", \
"FQDN", \
"USER_FQDN", \
"IPV4_ADDR_SUBNET", \
"IPV6_ADDR", \
"IPV6_ADDR_SUBNET", \
"IPV4_ADDR_RANGE", \
"IPV6_ADDR_RANGE", \
"DER_ASN1_DN", \
"DER_ASN1_GN", \
"KEY_ID", \
}
#define IPSEC_ATTR_SA_LIFE_TYPE 1
#define IPSEC_ATTR_SA_LIFE_DURATION 2
#define IPSEC_ATTR_GROUP_DESCRIPTION 3
#define IPSEC_ATTR_ENCAPSULATION_MODE 4
#define IPSEC_ATTR_AUTHENTICATION_ALGORITHM 5
#define IPSEC_ATTR_KEY_LENGTH 6
#define IPSEC_ATTR_KEY_ROUNDS 7
#define IPSEC_ATTR_COMPRESS_DICTIONARY_SIZE 8
#define IPSEC_ATTR_COMPRESS_PRIVATE_ALGORITHM 9
#define IPSEC_ATTR_INITIALIZER \
{ "NONE", "LIFE_TYPE", "LIFE_DURATION", \
"GROUP_DESCRIPTION", "ENCAPSULATION_MODE", \
"AUTHENTICATION_ALGORITHM", "KEY_LENGTH", \
"KEY_ROUNDS", "COMPRESS_DICTIONARY_SIZE", \
"COMPRESS_PRIVATE_ALGORITHM", \
}
#define IPSEC_ATTR_DURATION_INITIALIZER \
{ "NONE", "SECONDS", "KILOBYTES", \
}
#define IPSEC_ATTR_ENCAP_INITIALIZER \
{ "NONE", "TUNNEL", "TRANSPORT", \
}
#define IPSEC_ATTR_AUTH_INITIALIZER \
{ "NONE", "HMAC_MD5", "HMAC_SHA", "DES_MAC", "KPDK", \
"HMAC_SHA2_256", "HMAC_SHA2_384", "HMAC_SHA2_512", \
"HMAC_RIPEMD", \
}
#define IPSEC_AH_INITIALIZER \
{ "NONE", "MD5", "SHA", "DES", "SHA2_256", "SHA2_384", \
"SHA2_512", "RIPEMD", \
}
#define IPSEC_ESP_INITIALIZER \
{ "NONE", "DEV_IV64", "DES", "3DES", "RC5", "IDEA", \
"CAST", "BLOWFISH", "3IDEA", "DES_IV32", "RC4", \
"NULL", "AES", \
}
#define IPCOMP_INITIALIZER \
{ "NONE", "OUI", "DEFLATE", "LZS", "V42BIS", \
}
/*
* IKE mode config.
*/
#define IKE_CFG_ATTRIBUTE_TYPE_INITIALIZER \
{ "RESERVED", "CFG_REQUEST", "CFG_REPLY", \
"CFG_SET", "CFG_ACK", \
}
#define IKE_CFG_ATTR_INTERNAL_IP4_ADDRESS 1
#define IKE_CFG_ATTR_INTERNAL_IP4_NETMASK 2
#define IKE_CFG_ATTR_INTERNAL_IP4_DNS 3
#define IKE_CFG_ATTR_INTERNAL_IP4_NBNS 4
#define IKE_CFG_ATTR_INTERNAL_ADDRESS_EXPIRY 5
#define IKE_CFG_ATTR_INTERNAL_IP4_DHCP 6
#define IKE_CFG_ATTR_APPLICATION_VERSION 7
#define IKE_CFG_ATTR_INTERNAL_IP6_ADDRESS 8
#define IKE_CFG_ATTR_INTERNAL_IP6_NETMASK 9
#define IKE_CFG_ATTR_INTERNAL_IP6_DNS 10
#define IKE_CFG_ATTR_INTERNAL_IP6_NBNS 11
#define IKE_CFG_ATTR_INTERNAL_IP6_DHCP 12
#define IKE_CFG_ATTR_INTERNAL_IP4_SUBNET 13
#define IKE_CFG_ATTR_SUPPORTED_ATTRIBUTES 14
#define IKE_CFG_ATTR_INTERNAL_IP6_SUBNET 15
#define IKE_CFG_ATTRIBUTE_INITIALIZER \
{ "RESERVED", "INTERNAL_IP4_ADDRESS", \
"INTERNAL_IP4_NETMASK", "INTERNAL_IP4_DNS", \
"INTERNAL_IP4_NBNS", "INTERNAL_ADDRESS_EXPIRY", \
"INTERNAL_IP4_DHCP", "APPLICATION_VERSION", \
"INTERNAL_IP6_ADDRESS", "INTERNAL_IP6_NETMASK", \
"INTERNAL_IP6_DNS", "INTERNAL_IP6_NBNS", \
"INTERNAL_IP6_DHCP", "INTERNAL_IP4_SUBNET", \
"SUPPORTED_ATTRIBUTES", "INTERNAL_IP6_SUBNET", \
}
#define ISAKMP_SA_SZ 8
#define ISAKMP_PROP_SZ 8
#define ISAKMP_TRANSFORM_SZ 8
#define ISAKMP_KE_SZ 4
#define ISAKMP_ID_SZ 8
#define ISAKMP_CERT_SZ 5
#define ISAKMP_CERTREQ_SZ 5
#define ISAKMP_HASH_SZ 4
#define ISAKMP_SIG_SZ 4
#define ISAKMP_NONCE_SZ 4
#define ISAKMP_NOTIFY_SZ 12
#define ISAKMP_DELETE_SZ 12
#define ISAKMP_VENDOR_SZ 4
#define ISAKMP_ATTRIBUTE_SZ 8
#define ISAKMP_NAT_D_SZ 4
#define ISAKMP_NAT_OA_SZ 8
static u_int16_t min_payload_lengths[] = {
0, ISAKMP_SA_SZ, ISAKMP_PROP_SZ, ISAKMP_TRANSFORM_SZ, ISAKMP_KE_SZ,
ISAKMP_ID_SZ, ISAKMP_CERT_SZ, ISAKMP_CERTREQ_SZ, ISAKMP_HASH_SZ,
ISAKMP_SIG_SZ, ISAKMP_NONCE_SZ, ISAKMP_NOTIFY_SZ, ISAKMP_DELETE_SZ,
ISAKMP_VENDOR_SZ, ISAKMP_ATTRIBUTE_SZ
};
static u_int16_t min_priv_payload_lengths[] = {
0, 0, ISAKMP_NAT_D_SZ, ISAKMP_NAT_OA_SZ
};
static const struct vendor_id
{
char vid[16];
char *name;
} vendor_ids[] = {
{
{
0x44, 0x85, 0x15, 0x2d, 0x18, 0xb6, 0xbb, 0xcd,
0x0b, 0xe8, 0xa8, 0x46, 0x95, 0x79, 0xdd, 0xcc,
},
"v1 NAT-T, draft-ietf-ipsec-nat-t-ike-00",
},
{
{
0x90, 0xcb, 0x80, 0x91, 0x3e, 0xbb, 0x69, 0x6e,
0x08, 0x63, 0x81, 0xb5, 0xec, 0x42, 0x7b, 0x1f,
},
"v2 NAT-T, draft-ietf-ipsec-nat-t-ike-02",
},
{
{
0x7d, 0x94, 0x19, 0xa6, 0x53, 0x10, 0xca, 0x6f,
0x2c, 0x17, 0x9d, 0x92, 0x15, 0x52, 0x9d, 0x56,
},
"v3 NAT-T, draft-ietf-ipsec-nat-t-ike-03",
},
{
{
0xaf, 0xca, 0xd7, 0x13, 0x68, 0xa1, 0xf1, 0xc9,
0x6b, 0x86, 0x96, 0xfc, 0x77, 0x57, 0x01, 0x00,
/* Last "0x01, 0x00" means major v1, minor v0 */
},
"DPD v1.0"
}
};
|
