racoon.tproj/ipsec_doi.h

   1 /*      $KAME: ipsec_doi.h,v 1.34 2001/08/16 06:20:35 itojun Exp $      */
   2
   3 /*
   4  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the project nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 /* refered to RFC2407 */
  33
  34 #define IPSEC_DOI 1
  35
  36 /* 4.2 IPSEC Situation Definition */
  37 #define IPSECDOI_SIT_IDENTITY_ONLY           0x00000001
  38 #define IPSECDOI_SIT_SECRECY                 0x00000002
  39 #define IPSECDOI_SIT_INTEGRITY               0x00000004
  40
  41 /* 4.4.1 IPSEC Security Protocol Identifiers */
  42   /* 4.4.2 IPSEC ISAKMP Transform Values */
  43 #define IPSECDOI_PROTO_ISAKMP                        1
  44 #define   IPSECDOI_KEY_IKE                             1
  45
  46 /* 4.4.1 IPSEC Security Protocol Identifiers */
  47 #define IPSECDOI_PROTO_IPSEC_AH                      2
  48   /* 4.4.3 IPSEC AH Transform Values */
  49 #define   IPSECDOI_AH_MD5                              2
  50 #define   IPSECDOI_AH_SHA                              3
  51 #define   IPSECDOI_AH_DES                              4
  52 #define   IPSECDOI_AH_SHA2_256                         5
  53 #define   IPSECDOI_AH_SHA2_384                         6
  54 #define   IPSECDOI_AH_SHA2_512                         7
  55
  56 /* 4.4.1 IPSEC Security Protocol Identifiers */
  57 #define IPSECDOI_PROTO_IPSEC_ESP                     3
  58   /* 4.4.4 IPSEC ESP Transform Identifiers */
  59 #define   IPSECDOI_ESP_DES_IV64                        1
  60 #define   IPSECDOI_ESP_DES                             2
  61 #define   IPSECDOI_ESP_3DES                            3
  62 #define   IPSECDOI_ESP_RC5                             4
  63 #define   IPSECDOI_ESP_IDEA                            5
  64 #define   IPSECDOI_ESP_CAST                            6
  65 #define   IPSECDOI_ESP_BLOWFISH                         7
  66 #define   IPSECDOI_ESP_3IDEA                           8
  67 #define   IPSECDOI_ESP_DES_IV32                        9
  68 #define   IPSECDOI_ESP_RC4                            10
  69 #define   IPSECDOI_ESP_NULL                           11
  70 #define   IPSECDOI_ESP_RIJNDAEL                         12
  71 #define   IPSECDOI_ESP_AES                              12
  72 #if 1
  73   /* draft-ietf-ipsec-ciph-aes-cbc-00.txt */
  74 #define   IPSECDOI_ESP_TWOFISH                          253
  75 #else
  76   /* SSH uses these value for now */
  77 #define   IPSECDOI_ESP_TWOFISH                          250
  78 #endif
  79
  80 /* 4.4.1 IPSEC Security Protocol Identifiers */
  81 #define IPSECDOI_PROTO_IPCOMP                        4
  82   /* 4.4.5 IPSEC IPCOMP Transform Identifiers */
  83 #define   IPSECDOI_IPCOMP_OUI                          1
  84 #define   IPSECDOI_IPCOMP_DEFLATE                      2
  85 #define   IPSECDOI_IPCOMP_LZS                          3
  86
  87 /* 4.5 IPSEC Security Association Attributes */
  88 /* NOTE: default value is not included in a packet. */
  89 #define IPSECDOI_ATTR_SA_LD_TYPE              1 /* B */
  90 #define   IPSECDOI_ATTR_SA_LD_TYPE_DEFAULT      1
  91 #define   IPSECDOI_ATTR_SA_LD_TYPE_SEC          1
  92 #define   IPSECDOI_ATTR_SA_LD_TYPE_KB           2
  93 #define   IPSECDOI_ATTR_SA_LD_TYPE_MAX          3
  94 #define IPSECDOI_ATTR_SA_LD                   2 /* V */
  95 #define   IPSECDOI_ATTR_SA_LD_SEC_DEFAULT      28800 /* 8 hours */
  96 #define   IPSECDOI_ATTR_SA_LD_KB_MAX  (~(1 << ((sizeof(int) << 3) - 1)))
  97 #define IPSECDOI_ATTR_GRP_DESC                3 /* B */
  98 #define IPSECDOI_ATTR_ENC_MODE                4 /* B */
  99         /* default value: host dependent */
 100 #define   IPSECDOI_ATTR_ENC_MODE_ANY            0       /* NOTE:internal use */
 101 #define   IPSECDOI_ATTR_ENC_MODE_TUNNEL         1
 102 #define   IPSECDOI_ATTR_ENC_MODE_TRNS           2
 103 #define   IPSECDOI_ATTR_ENC_MODE_UDP_TUNNEL             3       /* UDP Encapsulated IPSec, NAT-T */
 104 #define   IPSECDOI_ATTR_ENC_MODE_UDP_TRNS               4       /* UDP Encapsulated IPSec, NAT-T */
 105 #define IPSECDOI_ATTR_AUTH                    5 /* B */
 106         /* 0 means not to use authentication. */
 107 #define   IPSECDOI_ATTR_AUTH_HMAC_MD5           1
 108 #define   IPSECDOI_ATTR_AUTH_HMAC_SHA1          2
 109 #define   IPSECDOI_ATTR_AUTH_DES_MAC            3
 110 #define   IPSECDOI_ATTR_AUTH_KPDK               4 /*RFC-1826(Key/Pad/Data/Key)*/
 111 #define   IPSECDOI_ATTR_SHA2_256                5
 112 #define   IPSECDOI_ATTR_SHA2_384                6
 113 #define   IPSECDOI_ATTR_SHA2_512                7
 114 #define   IPSECDOI_ATTR_AUTH_NONE               254     /* NOTE:internal use */
 115         /*
 116          * When negotiating ESP without authentication, the Auth
 117          * Algorithm attribute MUST NOT be included in the proposal.
 118          * When negotiating ESP without confidentiality, the Auth
 119          * Algorithm attribute MUST be included in the proposal and
 120          * the ESP transform ID must be ESP_NULL.
 121         */
 122 #define IPSECDOI_ATTR_KEY_LENGTH              6 /* B */
 123 #define IPSECDOI_ATTR_KEY_ROUNDS              7 /* B */
 124 #define IPSECDOI_ATTR_COMP_DICT_SIZE          8 /* B */
 125 #define IPSECDOI_ATTR_COMP_PRIVALG            9 /* V */
 126
 127 /* 4.6.1 Security Association Payload */
 128 struct ipsecdoi_pl_sa {
 129         struct isakmp_gen h;
 130         struct ipsecdoi_sa_b {
 131                 u_int32_t doi; /* Domain of Interpretation */
 132                 u_int32_t sit; /* Situation */
 133         } b;
 134         /* followed by Leveled Domain Identifier and so on. */
 135 } __attribute__((__packed__));
 136
 137 struct ipsecdoi_secrecy_h {
 138         u_int16_t len;
 139         u_int16_t reserved;
 140         /* followed by the value */
 141 } __attribute__((__packed__));
 142
 143 /* 4.6.2 Identification Payload Content */
 144 struct ipsecdoi_pl_id {
 145         struct isakmp_gen h;
 146         struct ipsecdoi_id_b {
 147                 u_int8_t type;          /* ID Type */
 148                 u_int8_t proto_id;      /* Protocol ID */
 149                 u_int16_t port;         /* Port */
 150         } b;
 151         /* followed by Identification Data */
 152 } __attribute__((__packed__));
 153
 154 #define IPSECDOI_ID_IPV4_ADDR                        1
 155 #define IPSECDOI_ID_FQDN                             2
 156 #define IPSECDOI_ID_USER_FQDN                        3
 157 #define IPSECDOI_ID_IPV4_ADDR_SUBNET                 4
 158 #define IPSECDOI_ID_IPV6_ADDR                        5
 159 #define IPSECDOI_ID_IPV6_ADDR_SUBNET                 6
 160 #define IPSECDOI_ID_IPV4_ADDR_RANGE                  7
 161 #define IPSECDOI_ID_IPV6_ADDR_RANGE                  8
 162 #define IPSECDOI_ID_DER_ASN1_DN                      9
 163 #define IPSECDOI_ID_DER_ASN1_GN                      10
 164 #define IPSECDOI_ID_KEY_ID                           11
 165
 166 /* compressing doi type, it's internal use. */
 167 #define IDTYPE_FQDN             0
 168 #define IDTYPE_USERFQDN         1
 169 #define IDTYPE_KEYID            2
 170 #define IDTYPE_ADDRESS          3
 171 #define IDTYPE_ASN1DN           4
 172
 173 /* shared secret type, it's internal use. */
 174 #define SECRETTYPE_USE          0
 175 #define SECRETTYPE_KEY          1
 176 #define SECRETTYPE_KEYCHAIN     2
 177
 178 /* The use for checking proposal payload. This is not exchange type. */
 179 #define IPSECDOI_TYPE_PH1       0
 180 #define IPSECDOI_TYPE_PH2       1
 181
 182 struct isakmpsa;
 183 struct ipsecdoi_pl_sa;
 184 struct saprop;
 185 struct saproto;
 186 struct satrns;
 187 struct prop_pair;
 188
 189 extern int ipsecdoi_checkph1proposal __P((vchar_t *, struct ph1handle *));
 190 extern int ipsecdoi_selectph2proposal __P((struct ph2handle *));
 191 extern int ipsecdoi_checkph2proposal __P((struct ph2handle *));
 192
 193 extern struct prop_pair **get_proppair __P((vchar_t *, int));
 194 extern vchar_t *get_sabyproppair __P((struct prop_pair *, struct ph1handle *));
 195 extern int ipsecdoi_updatespi __P((struct ph2handle *iph2));
 196 extern vchar_t *get_sabysaprop __P((struct saprop *, vchar_t *));
 197 extern int ipsecdoi_checkid1 __P((struct ph1handle *));
 198 extern int ipsecdoi_setid1 __P((struct ph1handle *));
 199 extern int set_identifier __P((vchar_t **, int, vchar_t *));
 200 extern int ipsecdoi_setid2 __P((struct ph2handle *));
 201 extern vchar_t *ipsecdoi_sockaddr2id __P((struct sockaddr *, u_int, u_int));
 202 extern int ipsecdoi_id2sockaddr __P((vchar_t *, struct sockaddr *,
 203         u_int8_t *, u_int16_t *));
 204 extern const char *ipsecdoi_id2str __P((const vchar_t *));
 205
 206 extern vchar_t *ipsecdoi_setph1proposal __P((struct isakmpsa *));
 207 extern int ipsecdoi_setph2proposal __P((struct ph2handle *));
 208 extern int ipsecdoi_transportmode __P((struct ph2handle *));
 209 extern int ipsecdoi_get_defaultlifetime __P((void));
 210 extern int ipsecdoi_checkalgtypes __P((int, int, int, int));
 211 extern int ipproto2doi __P((int));
 212 extern int doi2ipproto __P((int));
 213
 214 extern int ipsecdoi_t2satrns __P((struct isakmp_pl_t *,
 215         struct saprop *, struct saproto *, struct satrns *));
 216 extern int ipsecdoi_authalg2trnsid __P((int));
 217 extern int idtype2doi __P((int));
 218 extern int doi2idtype __P((int));
 219