diff options
Diffstat (limited to 'contrib/tcpdump/isakmp.h')
| -rw-r--r-- | contrib/tcpdump/isakmp.h | 483 |
1 files changed, 483 insertions, 0 deletions
diff --git a/contrib/tcpdump/isakmp.h b/contrib/tcpdump/isakmp.h new file mode 100644 index 0000000..85d383d --- /dev/null +++ b/contrib/tcpdump/isakmp.h @@ -0,0 +1,483 @@ +/* + * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. + * 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. Neither the name of the project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT OR CONTRIBUTORS 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. + */ +/* YIPS @(#)$Id: isakmp.h,v 1.11 2007-08-29 02:38:14 mcr Exp $ */ + +/* refer to RFC 2408 */ + +/* must include <netinet/in.h> */ + +#if !defined(_ISAKMP_H_) +#define _ISAKMP_H_ + +typedef u_char cookie_t[8]; +typedef u_char msgid_t[4]; + +typedef struct { /* i_cookie + r_cookie */ + cookie_t i_ck; + cookie_t r_ck; +} isakmp_index; + +#define INITIATOR 1 +#define RESPONDER 2 + +#define PORT_ISAKMP 500 + +#define GENERATE 1 +#define VALIDATE 0 + +/* Phase of oakley definition */ +/* + 0000 0000 0000 0000 + | |||| |||| + | |||| ++++--> negosiation number in phase + | ++++-------> phase number + +---------------> expire ? + */ +#define ISAKMP_PH1 0x0010 +#define ISAKMP_PH2 0x0020 +#define ISAKMP_EXPIRED 0x0100 + +#define ISAKMP_NGP_0 0x0000 +#define ISAKMP_NGP_1 0x0001 +#define ISAKMP_NGP_2 0x0002 +#define ISAKMP_NGP_3 0x0003 +#define ISAKMP_NGP_4 0x0004 + +#define ISAKMP_PH1_N (ISAKMP_PH1 | ISAKMP_NGP_0) /* i.e. spawn */ +#define ISAKMP_PH1_1 (ISAKMP_PH1 | ISAKMP_NGP_1) +#define ISAKMP_PH1_2 (ISAKMP_PH1 | ISAKMP_NGP_2) +#define ISAKMP_PH1_3 (ISAKMP_PH1 | ISAKMP_NGP_3) +#define ISAKMP_PH2_N (ISAKMP_PH2 | ISAKMP_NGP_0) +#define ISAKMP_PH2_1 (ISAKMP_PH2 | ISAKMP_NGP_1) +#define ISAKMP_PH2_2 (ISAKMP_PH2 | ISAKMP_NGP_2) +#define ISAKMP_PH2_3 (ISAKMP_PH2 | ISAKMP_NGP_3) + +#define ISAKMP_TIMER_DEFAULT 10 /* seconds */ +#define ISAKMP_TRY_DEFAULT 3 /* times */ + +/* 3.1 ISAKMP Header Format (IKEv1 and IKEv2) + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + ! Initiator ! + ! Cookie ! + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + ! Responder ! + ! Cookie ! + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + ! Next Payload ! MjVer ! MnVer ! Exchange Type ! Flags ! + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + ! Message ID ! + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + ! Length ! + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +*/ +struct isakmp { + cookie_t i_ck; /* Initiator Cookie */ + cookie_t r_ck; /* Responder Cookie */ + u_int8_t np; /* Next Payload Type */ + u_int8_t vers; +#define ISAKMP_VERS_MAJOR 0xf0 +#define ISAKMP_VERS_MAJOR_SHIFT 4 +#define ISAKMP_VERS_MINOR 0x0f +#define ISAKMP_VERS_MINOR_SHIFT 0 + u_int8_t etype; /* Exchange Type */ + u_int8_t flags; /* Flags */ + msgid_t msgid; + u_int32_t len; /* Length */ +}; + +/* Next Payload Type */ +#define ISAKMP_NPTYPE_NONE 0 /* NONE*/ +#define ISAKMP_NPTYPE_SA 1 /* Security Association */ +#define ISAKMP_NPTYPE_P 2 /* Proposal */ +#define ISAKMP_NPTYPE_T 3 /* Transform */ +#define ISAKMP_NPTYPE_KE 4 /* Key Exchange */ +#define ISAKMP_NPTYPE_ID 5 /* Identification */ +#define ISAKMP_NPTYPE_CERT 6 /* Certificate */ +#define ISAKMP_NPTYPE_CR 7 /* Certificate Request */ +#define ISAKMP_NPTYPE_HASH 8 /* Hash */ +#define ISAKMP_NPTYPE_SIG 9 /* Signature */ +#define ISAKMP_NPTYPE_NONCE 10 /* Nonce */ +#define ISAKMP_NPTYPE_N 11 /* Notification */ +#define ISAKMP_NPTYPE_D 12 /* Delete */ +#define ISAKMP_NPTYPE_VID 13 /* Vendor ID */ + +#define IKEv1_MAJOR_VERSION 1 +#define IKEv1_MINOR_VERSION 0 + +#define IKEv2_MAJOR_VERSION 2 +#define IKEv2_MINOR_VERSION 0 + +/* Exchange Type */ +#define ISAKMP_ETYPE_NONE 0 /* NONE */ +#define ISAKMP_ETYPE_BASE 1 /* Base */ +#define ISAKMP_ETYPE_IDENT 2 /* Identity Proteciton */ +#define ISAKMP_ETYPE_AUTH 3 /* Authentication Only */ +#define ISAKMP_ETYPE_AGG 4 /* Aggressive */ +#define ISAKMP_ETYPE_INF 5 /* Informational */ + +/* Flags */ +#define ISAKMP_FLAG_E 0x01 /* Encryption Bit */ +#define ISAKMP_FLAG_C 0x02 /* Commit Bit */ +#define ISAKMP_FLAG_extra 0x04 + +/* IKEv2 */ +#define ISAKMP_FLAG_I (1 << 3) /* (I)nitiator */ +#define ISAKMP_FLAG_V (1 << 4) /* (V)ersion */ +#define ISAKMP_FLAG_R (1 << 5) /* (R)esponse */ + + +/* 3.2 Payload Generic Header + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + ! Next Payload ! RESERVED ! Payload Length ! + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +*/ +struct isakmp_gen { + u_int8_t np; /* Next Payload */ + u_int8_t critical; /* bit 7 - critical, rest is RESERVED */ + u_int16_t len; /* Payload Length */ +}; + +/* 3.3 Data Attributes + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + !A! Attribute Type ! AF=0 Attribute Length ! + !F! ! AF=1 Attribute Value ! + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + . AF=0 Attribute Value . + . AF=1 Not Transmitted . + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +*/ +struct isakmp_data { + u_int16_t type; /* defined by DOI-spec, and Attribute Format */ + u_int16_t lorv; /* if f equal 1, Attribute Length */ + /* if f equal 0, Attribute Value */ + /* if f equal 1, Attribute Value */ +}; +#define ISAKMP_GEN_TLV 0x0000 +#define ISAKMP_GEN_TV 0x8000 + /* mask for type of attribute format */ +#define ISAKMP_GEN_MASK 0x8000 + +/* 3.4 Security Association Payload */ + /* MAY NOT be used, because of being defined in ipsec-doi. */ + /* + If the current payload is the last in the message, + then the value of the next payload field will be 0. + This field MUST NOT contain the + values for the Proposal or Transform payloads as they are considered + part of the security association negotiation. For example, this + field would contain the value "10" (Nonce payload) in the first + message of a Base Exchange (see Section 4.4) and the value "0" in the + first message of an Identity Protect Exchange (see Section 4.5). + */ +struct ikev1_pl_sa { + struct isakmp_gen h; + u_int32_t doi; /* Domain of Interpretation */ + u_int32_t sit; /* Situation */ +}; + +/* 3.5 Proposal Payload */ + /* + The value of the next payload field MUST only contain the value "2" + or "0". If there are additional Proposal payloads in the message, + then this field will be 2. If the current Proposal payload is the + last within the security association proposal, then this field will + be 0. + */ +struct ikev1_pl_p { + struct isakmp_gen h; + u_int8_t p_no; /* Proposal # */ + u_int8_t prot_id; /* Protocol */ + u_int8_t spi_size; /* SPI Size */ + u_int8_t num_t; /* Number of Transforms */ + /* SPI */ +}; + +/* 3.6 Transform Payload */ + /* + The value of the next payload field MUST only contain the value "3" + or "0". If there are additional Transform payloads in the proposal, + then this field will be 3. If the current Transform payload is the + last within the proposal, then this field will be 0. + */ +struct ikev1_pl_t { + struct isakmp_gen h; + u_int8_t t_no; /* Transform # */ + u_int8_t t_id; /* Transform-Id */ + u_int16_t reserved; /* RESERVED2 */ + /* SA Attributes */ +}; + +/* 3.7 Key Exchange Payload */ +struct ikev1_pl_ke { + struct isakmp_gen h; + /* Key Exchange Data */ +}; + +/* 3.8 Identification Payload */ + /* MUST NOT to be used, because of being defined in ipsec-doi. */ +struct ikev1_pl_id { + struct isakmp_gen h; + union { + u_int8_t id_type; /* ID Type */ + u_int32_t doi_data; /* DOI Specific ID Data */ + } d; + /* Identification Data */ +}; + +/* 3.9 Certificate Payload */ +struct ikev1_pl_cert { + struct isakmp_gen h; + u_int8_t encode; /* Cert Encoding */ + char cert; /* Certificate Data */ + /* + This field indicates the type of + certificate or certificate-related information contained in the + Certificate Data field. + */ +}; + +/* Certificate Type */ +#define ISAKMP_CERT_NONE 0 +#define ISAKMP_CERT_PKCS 1 +#define ISAKMP_CERT_PGP 2 +#define ISAKMP_CERT_DNS 3 +#define ISAKMP_CERT_SIGN 4 +#define ISAKMP_CERT_KE 5 +#define ISAKMP_CERT_KT 6 +#define ISAKMP_CERT_CRL 7 +#define ISAKMP_CERT_ARL 8 +#define ISAKMP_CERT_SPKI 9 + +/* 3.10 Certificate Request Payload */ +struct ikev1_pl_cr { + struct isakmp_gen h; + u_int8_t num_cert; /* # Cert. Types */ + /* + Certificate Types (variable length) + -- Contains a list of the types of certificates requested, + sorted in order of preference. Each individual certificate + type is 1 octet. This field is NOT requiredo + */ + /* # Certificate Authorities (1 octet) */ + /* Certificate Authorities (variable length) */ +}; + +/* 3.11 Hash Payload */ + /* may not be used, because of having only data. */ +struct ikev1_pl_hash { + struct isakmp_gen h; + /* Hash Data */ +}; + +/* 3.12 Signature Payload */ + /* may not be used, because of having only data. */ +struct ikev1_pl_sig { + struct isakmp_gen h; + /* Signature Data */ +}; + +/* 3.13 Nonce Payload */ + /* may not be used, because of having only data. */ +struct ikev1_pl_nonce { + struct isakmp_gen h; + /* Nonce Data */ +}; + +/* 3.14 Notification Payload */ +struct ikev1_pl_n { + struct isakmp_gen h; + u_int32_t doi; /* Domain of Interpretation */ + u_int8_t prot_id; /* Protocol-ID */ + u_int8_t spi_size; /* SPI Size */ + u_int16_t type; /* Notify Message Type */ + /* SPI */ + /* Notification Data */ +}; + +/* 3.14.1 Notify Message Types */ +/* NOTIFY MESSAGES - ERROR TYPES */ +#define ISAKMP_NTYPE_INVALID_PAYLOAD_TYPE 1 +#define ISAKMP_NTYPE_DOI_NOT_SUPPORTED 2 +#define ISAKMP_NTYPE_SITUATION_NOT_SUPPORTED 3 +#define ISAKMP_NTYPE_INVALID_COOKIE 4 +#define ISAKMP_NTYPE_INVALID_MAJOR_VERSION 5 +#define ISAKMP_NTYPE_INVALID_MINOR_VERSION 6 +#define ISAKMP_NTYPE_INVALID_EXCHANGE_TYPE 7 +#define ISAKMP_NTYPE_INVALID_FLAGS 8 +#define ISAKMP_NTYPE_INVALID_MESSAGE_ID 9 +#define ISAKMP_NTYPE_INVALID_PROTOCOL_ID 10 +#define ISAKMP_NTYPE_INVALID_SPI 11 +#define ISAKMP_NTYPE_INVALID_TRANSFORM_ID 12 +#define ISAKMP_NTYPE_ATTRIBUTES_NOT_SUPPORTED 13 +#define ISAKMP_NTYPE_NO_PROPOSAL_CHOSEN 14 +#define ISAKMP_NTYPE_BAD_PROPOSAL_SYNTAX 15 +#define ISAKMP_NTYPE_PAYLOAD_MALFORMED 16 +#define ISAKMP_NTYPE_INVALID_KEY_INFORMATION 17 +#define ISAKMP_NTYPE_INVALID_ID_INFORMATION 18 +#define ISAKMP_NTYPE_INVALID_CERT_ENCODING 19 +#define ISAKMP_NTYPE_INVALID_CERTIFICATE 20 +#define ISAKMP_NTYPE_BAD_CERT_REQUEST_SYNTAX 21 +#define ISAKMP_NTYPE_INVALID_CERT_AUTHORITY 22 +#define ISAKMP_NTYPE_INVALID_HASH_INFORMATION 23 +#define ISAKMP_NTYPE_AUTHENTICATION_FAILED 24 +#define ISAKMP_NTYPE_INVALID_SIGNATURE 25 +#define ISAKMP_NTYPE_ADDRESS_NOTIFICATION 26 +/* NOTIFY MESSAGES - STATUS TYPES */ +#define ISAKMP_NTYPE_CONNECTED 16384 +/* using only to log */ +#define ISAKMP_LOG_RETRY_LIMIT_REACHED 65530 + +/* 3.15 Delete Payload */ +struct ikev1_pl_d { + struct isakmp_gen h; + u_int32_t doi; /* Domain of Interpretation */ + u_int8_t prot_id; /* Protocol-Id */ + u_int8_t spi_size; /* SPI Size */ + u_int16_t num_spi; /* # of SPIs */ + /* SPI(es) */ +}; + + +struct ikev1_ph1tab { + struct ikev1_ph1 *head; + struct ikev1_ph1 *tail; + int len; +}; + +struct isakmp_ph2tab { + struct ikev1_ph2 *head; + struct ikev1_ph2 *tail; + int len; +}; + +#define EXCHANGE_PROXY 1 +#define EXCHANGE_MYSELF 0 + +#define PFS_NEED 1 +#define PFS_NONEED 0 + +/* IKEv2 (RFC4306) */ + +/* 3.3 Security Association Payload -- generic header */ +/* 3.3.1. Proposal Substructure */ +struct ikev2_p { + struct isakmp_gen h; + u_int8_t p_no; /* Proposal # */ + u_int8_t prot_id; /* Protocol */ + u_int8_t spi_size; /* SPI Size */ + u_int8_t num_t; /* Number of Transforms */ +}; + +/* 3.3.2. Transform Substructure */ +struct ikev2_t { + struct isakmp_gen h; + u_int8_t t_type; /* Transform Type (ENCR,PRF,INTEG,etc.*/ + u_int8_t res2; /* reserved byte */ + u_int16_t t_id; /* Transform ID */ +}; + +enum ikev2_t_type { + IV2_T_ENCR = 1, + IV2_T_PRF = 2, + IV2_T_INTEG= 3, + IV2_T_DH = 4, + IV2_T_ESN = 5, +}; + +/* 3.4. Key Exchange Payload */ +struct ikev2_ke { + struct isakmp_gen h; + u_int16_t ke_group; + u_int16_t ke_res1; + /* KE data */ +}; + + +/* 3.10 Notification Payload */ +struct ikev2_n { + struct isakmp_gen h; + u_int8_t prot_id; /* Protocol-ID */ + u_int8_t spi_size; /* SPI Size */ + u_int16_t type; /* Notify Message Type */ + /* SPI */ + /* Notification Data */ +}; + +enum ikev2_n_type { + IV2_NOTIFY_UNSUPPORTED_CRITICAL_PAYLOAD = 1, + IV2_NOTIFY_INVALID_IKE_SPI = 4, + IV2_NOTIFY_INVALID_MAJOR_VERSION = 5, + IV2_NOTIFY_INVALID_SYNTAX = 7, + IV2_NOTIFY_INVALID_MESSAGE_ID = 9, + IV2_NOTIFY_INVALID_SPI =11, + IV2_NOTIFY_NO_PROPOSAL_CHOSEN =14, + IV2_NOTIFY_INVALID_KE_PAYLOAD =17, + IV2_NOTIFY_AUTHENTICATION_FAILED =24, + IV2_NOTIFY_SINGLE_PAIR_REQUIRED =34, + IV2_NOTIFY_NO_ADDITIONAL_SAS =35, + IV2_NOTIFY_INTERNAL_ADDRESS_FAILURE =36, + IV2_NOTIFY_FAILED_CP_REQUIRED =37, + IV2_NOTIFY_INVALID_SELECTORS =39, + IV2_NOTIFY_INITIAL_CONTACT =16384, + IV2_NOTIFY_SET_WINDOW_SIZE =16385, + IV2_NOTIFY_ADDITIONAL_TS_POSSIBLE =16386, + IV2_NOTIFY_IPCOMP_SUPPORTED =16387, + IV2_NOTIFY_NAT_DETECTION_SOURCE_IP =16388, + IV2_NOTIFY_NAT_DETECTION_DESTINATION_IP =16389, + IV2_NOTIFY_COOKIE =16390, + IV2_NOTIFY_USE_TRANSPORT_MODE =16391, + IV2_NOTIFY_HTTP_CERT_LOOKUP_SUPPORTED =16392, + IV2_NOTIFY_REKEY_SA =16393, + IV2_NOTIFY_ESP_TFC_PADDING_NOT_SUPPORTED =16394, + IV2_NOTIFY_NON_FIRST_FRAGMENTS_ALSO =16395 +}; + +struct notify_messages { + u_int16_t type; + char *msg; +}; + +/* 3.8 Notification Payload */ +struct ikev2_auth { + struct isakmp_gen h; + u_int8_t auth_method; /* Protocol-ID */ + u_int8_t reserved[3]; + /* authentication data */ +}; + +enum ikev2_auth_type { + IV2_RSA_SIG = 1, + IV2_SHARED = 2, + IV2_DSS_SIG = 3, +}; + +#endif /* !defined(_ISAKMP_H_) */ |
