1 /* PF_KEY user interface, this is defined by rfc2367 so 2 * do not make arbitrary modifications or else this header 3 * file will not be compliant. 4 */ 5 6 #ifndef _LINUX_PFKEY2_H 7 #define _LINUX_PFKEY2_H 8 9 #include <linux/types.h> 10 11 #define PF_KEY_V2 2 12 #define PFKEYV2_REVISION 199806L 13 14 struct sadb_msg { 15 uint8_t sadb_msg_version; 16 uint8_t sadb_msg_type; 17 uint8_t sadb_msg_errno; 18 uint8_t sadb_msg_satype; 19 uint16_t sadb_msg_len; 20 uint16_t sadb_msg_reserved; 21 uint32_t sadb_msg_seq; 22 uint32_t sadb_msg_pid; 23 } __attribute__((packed)); 24 /* sizeof(struct sadb_msg) == 16 */ 25 26 struct sadb_ext { 27 uint16_t sadb_ext_len; 28 uint16_t sadb_ext_type; 29 } __attribute__((packed)); 30 /* sizeof(struct sadb_ext) == 4 */ 31 32 struct sadb_sa { 33 uint16_t sadb_sa_len; 34 uint16_t sadb_sa_exttype; 35 uint32_t sadb_sa_spi; 36 uint8_t sadb_sa_replay; 37 uint8_t sadb_sa_state; 38 uint8_t sadb_sa_auth; 39 uint8_t sadb_sa_encrypt; 40 uint32_t sadb_sa_flags; 41 } __attribute__((packed)); 42 /* sizeof(struct sadb_sa) == 16 */ 43 44 struct sadb_lifetime { 45 uint16_t sadb_lifetime_len; 46 uint16_t sadb_lifetime_exttype; 47 uint32_t sadb_lifetime_allocations; 48 uint64_t sadb_lifetime_bytes; 49 uint64_t sadb_lifetime_addtime; 50 uint64_t sadb_lifetime_usetime; 51 } __attribute__((packed)); 52 /* sizeof(struct sadb_lifetime) == 32 */ 53 54 struct sadb_address { 55 uint16_t sadb_address_len; 56 uint16_t sadb_address_exttype; 57 uint8_t sadb_address_proto; 58 uint8_t sadb_address_prefixlen; 59 uint16_t sadb_address_reserved; 60 } __attribute__((packed)); 61 /* sizeof(struct sadb_address) == 8 */ 62 63 struct sadb_key { 64 uint16_t sadb_key_len; 65 uint16_t sadb_key_exttype; 66 uint16_t sadb_key_bits; 67 uint16_t sadb_key_reserved; 68 } __attribute__((packed)); 69 /* sizeof(struct sadb_key) == 8 */ 70 71 struct sadb_ident { 72 uint16_t sadb_ident_len; 73 uint16_t sadb_ident_exttype; 74 uint16_t sadb_ident_type; 75 uint16_t sadb_ident_reserved; 76 uint64_t sadb_ident_id; 77 } __attribute__((packed)); 78 /* sizeof(struct sadb_ident) == 16 */ 79 80 struct sadb_sens { 81 uint16_t sadb_sens_len; 82 uint16_t sadb_sens_exttype; 83 uint32_t sadb_sens_dpd; 84 uint8_t sadb_sens_sens_level; 85 uint8_t sadb_sens_sens_len; 86 uint8_t sadb_sens_integ_level; 87 uint8_t sadb_sens_integ_len; 88 uint32_t sadb_sens_reserved; 89 } __attribute__((packed)); 90 /* sizeof(struct sadb_sens) == 16 */ 91 92 /* followed by: 93 uint64_t sadb_sens_bitmap[sens_len]; 94 uint64_t sadb_integ_bitmap[integ_len]; */ 95 96 struct sadb_prop { 97 uint16_t sadb_prop_len; 98 uint16_t sadb_prop_exttype; 99 uint8_t sadb_prop_replay; 100 uint8_t sadb_prop_reserved[3]; 101 } __attribute__((packed)); 102 /* sizeof(struct sadb_prop) == 8 */ 103 104 /* followed by: 105 struct sadb_comb sadb_combs[(sadb_prop_len + 106 sizeof(uint64_t) - sizeof(struct sadb_prop)) / 107 sizeof(struct sadb_comb)]; */ 108 109 struct sadb_comb { 110 uint8_t sadb_comb_auth; 111 uint8_t sadb_comb_encrypt; 112 uint16_t sadb_comb_flags; 113 uint16_t sadb_comb_auth_minbits; 114 uint16_t sadb_comb_auth_maxbits; 115 uint16_t sadb_comb_encrypt_minbits; 116 uint16_t sadb_comb_encrypt_maxbits; 117 uint32_t sadb_comb_reserved; 118 uint32_t sadb_comb_soft_allocations; 119 uint32_t sadb_comb_hard_allocations; 120 uint64_t sadb_comb_soft_bytes; 121 uint64_t sadb_comb_hard_bytes; 122 uint64_t sadb_comb_soft_addtime; 123 uint64_t sadb_comb_hard_addtime; 124 uint64_t sadb_comb_soft_usetime; 125 uint64_t sadb_comb_hard_usetime; 126 } __attribute__((packed)); 127 /* sizeof(struct sadb_comb) == 72 */ 128 129 struct sadb_supported { 130 uint16_t sadb_supported_len; 131 uint16_t sadb_supported_exttype; 132 uint32_t sadb_supported_reserved; 133 } __attribute__((packed)); 134 /* sizeof(struct sadb_supported) == 8 */ 135 136 /* followed by: 137 struct sadb_alg sadb_algs[(sadb_supported_len + 138 sizeof(uint64_t) - sizeof(struct sadb_supported)) / 139 sizeof(struct sadb_alg)]; */ 140 141 struct sadb_alg { 142 uint8_t sadb_alg_id; 143 uint8_t sadb_alg_ivlen; 144 uint16_t sadb_alg_minbits; 145 uint16_t sadb_alg_maxbits; 146 uint16_t sadb_alg_reserved; 147 } __attribute__((packed)); 148 /* sizeof(struct sadb_alg) == 8 */ 149 150 struct sadb_spirange { 151 uint16_t sadb_spirange_len; 152 uint16_t sadb_spirange_exttype; 153 uint32_t sadb_spirange_min; 154 uint32_t sadb_spirange_max; 155 uint32_t sadb_spirange_reserved; 156 } __attribute__((packed)); 157 /* sizeof(struct sadb_spirange) == 16 */ 158 159 struct sadb_x_kmprivate { 160 uint16_t sadb_x_kmprivate_len; 161 uint16_t sadb_x_kmprivate_exttype; 162 uint32_t sadb_x_kmprivate_reserved; 163 } __attribute__((packed)); 164 /* sizeof(struct sadb_x_kmprivate) == 8 */ 165 166 struct sadb_x_sa2 { 167 uint16_t sadb_x_sa2_len; 168 uint16_t sadb_x_sa2_exttype; 169 uint8_t sadb_x_sa2_mode; 170 uint8_t sadb_x_sa2_reserved1; 171 uint16_t sadb_x_sa2_reserved2; 172 uint32_t sadb_x_sa2_sequence; 173 uint32_t sadb_x_sa2_reqid; 174 } __attribute__((packed)); 175 /* sizeof(struct sadb_x_sa2) == 16 */ 176 177 struct sadb_x_policy { 178 uint16_t sadb_x_policy_len; 179 uint16_t sadb_x_policy_exttype; 180 uint16_t sadb_x_policy_type; 181 uint8_t sadb_x_policy_dir; 182 uint8_t sadb_x_policy_reserved; 183 uint32_t sadb_x_policy_id; 184 uint32_t sadb_x_policy_priority; 185 } __attribute__((packed)); 186 /* sizeof(struct sadb_x_policy) == 16 */ 187 188 struct sadb_x_ipsecrequest { 189 uint16_t sadb_x_ipsecrequest_len; 190 uint16_t sadb_x_ipsecrequest_proto; 191 uint8_t sadb_x_ipsecrequest_mode; 192 uint8_t sadb_x_ipsecrequest_level; 193 uint16_t sadb_x_ipsecrequest_reserved1; 194 uint32_t sadb_x_ipsecrequest_reqid; 195 uint32_t sadb_x_ipsecrequest_reserved2; 196 } __attribute__((packed)); 197 /* sizeof(struct sadb_x_ipsecrequest) == 16 */ 198 199 /* This defines the TYPE of Nat Traversal in use. Currently only one 200 * type of NAT-T is supported, draft-ietf-ipsec-udp-encaps-06 201 */ 202 struct sadb_x_nat_t_type { 203 uint16_t sadb_x_nat_t_type_len; 204 uint16_t sadb_x_nat_t_type_exttype; 205 uint8_t sadb_x_nat_t_type_type; 206 uint8_t sadb_x_nat_t_type_reserved[3]; 207 } __attribute__((packed)); 208 /* sizeof(struct sadb_x_nat_t_type) == 8 */ 209 210 /* Pass a NAT Traversal port (Source or Dest port) */ 211 struct sadb_x_nat_t_port { 212 uint16_t sadb_x_nat_t_port_len; 213 uint16_t sadb_x_nat_t_port_exttype; 214 uint16_t sadb_x_nat_t_port_port; 215 uint16_t sadb_x_nat_t_port_reserved; 216 } __attribute__((packed)); 217 /* sizeof(struct sadb_x_nat_t_port) == 8 */ 218 219 /* Generic LSM security context */ 220 struct sadb_x_sec_ctx { 221 uint16_t sadb_x_sec_len; 222 uint16_t sadb_x_sec_exttype; 223 uint8_t sadb_x_ctx_alg; /* LSMs: e.g., selinux == 1 */ 224 uint8_t sadb_x_ctx_doi; 225 uint16_t sadb_x_ctx_len; 226 } __attribute__((packed)); 227 /* sizeof(struct sadb_sec_ctx) = 8 */ 228 229 /* Message types */ 230 #define SADB_RESERVED 0 231 #define SADB_GETSPI 1 232 #define SADB_UPDATE 2 233 #define SADB_ADD 3 234 #define SADB_DELETE 4 235 #define SADB_GET 5 236 #define SADB_ACQUIRE 6 237 #define SADB_REGISTER 7 238 #define SADB_EXPIRE 8 239 #define SADB_FLUSH 9 240 #define SADB_DUMP 10 241 #define SADB_X_PROMISC 11 242 #define SADB_X_PCHANGE 12 243 #define SADB_X_SPDUPDATE 13 244 #define SADB_X_SPDADD 14 245 #define SADB_X_SPDDELETE 15 246 #define SADB_X_SPDGET 16 247 #define SADB_X_SPDACQUIRE 17 248 #define SADB_X_SPDDUMP 18 249 #define SADB_X_SPDFLUSH 19 250 #define SADB_X_SPDSETIDX 20 251 #define SADB_X_SPDEXPIRE 21 252 #define SADB_X_SPDDELETE2 22 253 #define SADB_X_NAT_T_NEW_MAPPING 23 254 #define SADB_MAX 23 255 256 /* Security Association flags */ 257 #define SADB_SAFLAGS_PFS 1 258 #define SADB_SAFLAGS_NOPMTUDISC 0x20000000 259 #define SADB_SAFLAGS_DECAP_DSCP 0x40000000 260 #define SADB_SAFLAGS_NOECN 0x80000000 261 262 /* Security Association states */ 263 #define SADB_SASTATE_LARVAL 0 264 #define SADB_SASTATE_MATURE 1 265 #define SADB_SASTATE_DYING 2 266 #define SADB_SASTATE_DEAD 3 267 #define SADB_SASTATE_MAX 3 268 269 /* Security Association types */ 270 #define SADB_SATYPE_UNSPEC 0 271 #define SADB_SATYPE_AH 2 272 #define SADB_SATYPE_ESP 3 273 #define SADB_SATYPE_RSVP 5 274 #define SADB_SATYPE_OSPFV2 6 275 #define SADB_SATYPE_RIPV2 7 276 #define SADB_SATYPE_MIP 8 277 #define SADB_X_SATYPE_IPCOMP 9 278 #define SADB_SATYPE_MAX 9 279 280 /* Authentication algorithms */ 281 #define SADB_AALG_NONE 0 282 #define SADB_AALG_MD5HMAC 2 283 #define SADB_AALG_SHA1HMAC 3 284 #define SADB_X_AALG_SHA2_256HMAC 5 285 #define SADB_X_AALG_SHA2_384HMAC 6 286 #define SADB_X_AALG_SHA2_512HMAC 7 287 #define SADB_X_AALG_RIPEMD160HMAC 8 288 #define SADB_X_AALG_NULL 251 /* kame */ 289 #define SADB_AALG_MAX 251 290 291 /* Encryption algorithms */ 292 #define SADB_EALG_NONE 0 293 #define SADB_EALG_DESCBC 2 294 #define SADB_EALG_3DESCBC 3 295 #define SADB_X_EALG_CASTCBC 6 296 #define SADB_X_EALG_BLOWFISHCBC 7 297 #define SADB_EALG_NULL 11 298 #define SADB_X_EALG_AESCBC 12 299 #define SADB_EALG_MAX 253 /* last EALG */ 300 /* private allocations should use 249-255 (RFC2407) */ 301 #define SADB_X_EALG_SERPENTCBC 252 /* draft-ietf-ipsec-ciph-aes-cbc-00 */ 302 #define SADB_X_EALG_TWOFISHCBC 253 /* draft-ietf-ipsec-ciph-aes-cbc-00 */ 303 304 /* Compression algorithms */ 305 #define SADB_X_CALG_NONE 0 306 #define SADB_X_CALG_OUI 1 307 #define SADB_X_CALG_DEFLATE 2 308 #define SADB_X_CALG_LZS 3 309 #define SADB_X_CALG_LZJH 4 310 #define SADB_X_CALG_MAX 4 311 312 /* Extension Header values */ 313 #define SADB_EXT_RESERVED 0 314 #define SADB_EXT_SA 1 315 #define SADB_EXT_LIFETIME_CURRENT 2 316 #define SADB_EXT_LIFETIME_HARD 3 317 #define SADB_EXT_LIFETIME_SOFT 4 318 #define SADB_EXT_ADDRESS_SRC 5 319 #define SADB_EXT_ADDRESS_DST 6 320 #define SADB_EXT_ADDRESS_PROXY 7 321 #define SADB_EXT_KEY_AUTH 8 322 #define SADB_EXT_KEY_ENCRYPT 9 323 #define SADB_EXT_IDENTITY_SRC 10 324 #define SADB_EXT_IDENTITY_DST 11 325 #define SADB_EXT_SENSITIVITY 12 326 #define SADB_EXT_PROPOSAL 13 327 #define SADB_EXT_SUPPORTED_AUTH 14 328 #define SADB_EXT_SUPPORTED_ENCRYPT 15 329 #define SADB_EXT_SPIRANGE 16 330 #define SADB_X_EXT_KMPRIVATE 17 331 #define SADB_X_EXT_POLICY 18 332 #define SADB_X_EXT_SA2 19 333 /* The next four entries are for setting up NAT Traversal */ 334 #define SADB_X_EXT_NAT_T_TYPE 20 335 #define SADB_X_EXT_NAT_T_SPORT 21 336 #define SADB_X_EXT_NAT_T_DPORT 22 337 #define SADB_X_EXT_NAT_T_OA 23 338 #define SADB_X_EXT_SEC_CTX 24 339 #define SADB_EXT_MAX 24 340 341 /* Identity Extension values */ 342 #define SADB_IDENTTYPE_RESERVED 0 343 #define SADB_IDENTTYPE_PREFIX 1 344 #define SADB_IDENTTYPE_FQDN 2 345 #define SADB_IDENTTYPE_USERFQDN 3 346 #define SADB_IDENTTYPE_MAX 3 347 348 #endif /* !(_LINUX_PFKEY2_H) */ 349