bsd/net/pfkeyv2.h

   1 /*
   2  * Copyright (c) 2000-2011 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*      $KAME: pfkeyv2.h,v 1.10 2000/03/22 07:04:20 sakane Exp $        */
  29
  30 /*
  31  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
  32  * All rights reserved.
  33  *
  34  * Redistribution and use in source and binary forms, with or without
  35  * modification, are permitted provided that the following conditions
  36  * are met:
  37  * 1. Redistributions of source code must retain the above copyright
  38  *    notice, this list of conditions and the following disclaimer.
  39  * 2. Redistributions in binary form must reproduce the above copyright
  40  *    notice, this list of conditions and the following disclaimer in the
  41  *    documentation and/or other materials provided with the distribution.
  42  * 3. Neither the name of the project nor the names of its contributors
  43  *    may be used to endorse or promote products derived from this software
  44  *    without specific prior written permission.
  45  *
  46  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
  47  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  49  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
  50  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  51  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  52  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  54  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  55  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  56  * SUCH DAMAGE.
  57  */
  58
  59 /*
  60  * This file has been derived rfc 2367,
  61  * And added some flags of SADB_KEY_FLAGS_ as SADB_X_EXT_.
  62  *      sakane@ydc.co.jp
  63  */
  64
  65 #ifndef _NET_PFKEYV2_H_
  66 #define _NET_PFKEYV2_H_
  67 #include <sys/appleapiopts.h>
  68 #include <net/if.h>
  69
  70 /*
  71 This file defines structures and symbols for the PF_KEY Version 2
  72 key management interface. It was written at the U.S. Naval Research
  73 Laboratory. This file is in the public domain. The authors ask that
  74 you leave this credit intact on any copies of this file.
  75 */
  76 #ifndef __PFKEY_V2_H
  77 #define __PFKEY_V2_H 1
  78
  79 #define PF_KEY_V2 2
  80 #define PFKEYV2_REVISION        199806L
  81
  82 #define SADB_RESERVED    0
  83 #define SADB_GETSPI      1
  84 #define SADB_UPDATE      2
  85 #define SADB_ADD         3
  86 #define SADB_DELETE      4
  87 #define SADB_GET         5
  88 #define SADB_ACQUIRE     6
  89 #define SADB_REGISTER    7
  90 #define SADB_EXPIRE      8
  91 #define SADB_FLUSH       9
  92 #define SADB_DUMP        10
  93 #define SADB_X_PROMISC   11
  94 #define SADB_X_PCHANGE   12
  95
  96 #define SADB_X_SPDUPDATE  13
  97 #define SADB_X_SPDADD     14
  98 #define SADB_X_SPDDELETE  15    /* by policy index */
  99 #define SADB_X_SPDGET     16
 100 #define SADB_X_SPDACQUIRE 17
 101 #define SADB_X_SPDDUMP    18
 102 #define SADB_X_SPDFLUSH   19
 103 #define SADB_X_SPDSETIDX  20
 104 #define SADB_X_SPDEXPIRE  21
 105 #define SADB_X_SPDDELETE2 22    /* by policy id */
 106 #define SADB_GETSASTAT    23
 107 #define SADB_X_SPDENABLE  24    /* by policy id */
 108 #define SADB_X_SPDDISABLE 25    /* by policy id */
 109 #define SADB_MAX          25
 110
 111 struct sadb_msg {
 112   u_int8_t sadb_msg_version;
 113   u_int8_t sadb_msg_type;
 114   u_int8_t sadb_msg_errno;
 115   u_int8_t sadb_msg_satype;
 116   u_int16_t sadb_msg_len;
 117   u_int16_t sadb_msg_reserved;
 118   u_int32_t sadb_msg_seq;
 119   u_int32_t sadb_msg_pid;
 120 };
 121
 122 struct sadb_ext {
 123   u_int16_t sadb_ext_len;
 124   u_int16_t sadb_ext_type;
 125 };
 126
 127 struct sadb_sa {
 128   u_int16_t sadb_sa_len;
 129   u_int16_t sadb_sa_exttype;
 130   u_int32_t sadb_sa_spi;
 131   u_int8_t sadb_sa_replay;
 132   u_int8_t sadb_sa_state;
 133   u_int8_t sadb_sa_auth;
 134   u_int8_t sadb_sa_encrypt;
 135   u_int32_t sadb_sa_flags;
 136 };
 137
 138 #ifdef PRIVATE
 139 struct sadb_sa_2 {
 140         struct sadb_sa  sa;
 141         u_int16_t               sadb_sa_natt_port;
 142         union {
 143                 u_int16_t               sadb_reserved0;
 144                 u_int16_t               sadb_sa_natt_interval;
 145         };
 146         u_int32_t               sadb_reserved1;
 147 };
 148 #endif /* PRIVATE */
 149
 150 struct sadb_lifetime {
 151   u_int16_t sadb_lifetime_len;
 152   u_int16_t sadb_lifetime_exttype;
 153   u_int32_t sadb_lifetime_allocations;
 154   u_int64_t sadb_lifetime_bytes;
 155   u_int64_t sadb_lifetime_addtime;
 156   u_int64_t sadb_lifetime_usetime;
 157 };
 158
 159 struct sadb_address {
 160   u_int16_t sadb_address_len;
 161   u_int16_t sadb_address_exttype;
 162   u_int8_t sadb_address_proto;
 163   u_int8_t sadb_address_prefixlen;
 164   u_int16_t sadb_address_reserved;
 165 };
 166
 167 struct sadb_key {
 168   u_int16_t sadb_key_len;
 169   u_int16_t sadb_key_exttype;
 170   u_int16_t sadb_key_bits;
 171   u_int16_t sadb_key_reserved;
 172 };
 173
 174 struct sadb_ident {
 175   u_int16_t sadb_ident_len;
 176   u_int16_t sadb_ident_exttype;
 177   u_int16_t sadb_ident_type;
 178   u_int16_t sadb_ident_reserved;
 179   u_int64_t sadb_ident_id;
 180 };
 181
 182 struct sadb_sens {
 183   u_int16_t sadb_sens_len;
 184   u_int16_t sadb_sens_exttype;
 185   u_int32_t sadb_sens_dpd;
 186   u_int8_t sadb_sens_sens_level;
 187   u_int8_t sadb_sens_sens_len;
 188   u_int8_t sadb_sens_integ_level;
 189   u_int8_t sadb_sens_integ_len;
 190   u_int32_t sadb_sens_reserved;
 191 };
 192
 193 struct sadb_prop {
 194   u_int16_t sadb_prop_len;
 195   u_int16_t sadb_prop_exttype;
 196   u_int8_t sadb_prop_replay;
 197   u_int8_t sadb_prop_reserved[3];
 198 };
 199
 200 struct sadb_comb {
 201   u_int8_t sadb_comb_auth;
 202   u_int8_t sadb_comb_encrypt;
 203   u_int16_t sadb_comb_flags;
 204   u_int16_t sadb_comb_auth_minbits;
 205   u_int16_t sadb_comb_auth_maxbits;
 206   u_int16_t sadb_comb_encrypt_minbits;
 207   u_int16_t sadb_comb_encrypt_maxbits;
 208   u_int32_t sadb_comb_reserved;
 209   u_int32_t sadb_comb_soft_allocations;
 210   u_int32_t sadb_comb_hard_allocations;
 211   u_int64_t sadb_comb_soft_bytes;
 212   u_int64_t sadb_comb_hard_bytes;
 213   u_int64_t sadb_comb_soft_addtime;
 214   u_int64_t sadb_comb_hard_addtime;
 215   u_int64_t sadb_comb_soft_usetime;
 216   u_int64_t sadb_comb_hard_usetime;
 217 };
 218
 219 struct sadb_supported {
 220   u_int16_t sadb_supported_len;
 221   u_int16_t sadb_supported_exttype;
 222   u_int32_t sadb_supported_reserved;
 223 };
 224
 225 struct sadb_alg {
 226   u_int8_t sadb_alg_id;
 227   u_int8_t sadb_alg_ivlen;
 228   u_int16_t sadb_alg_minbits;
 229   u_int16_t sadb_alg_maxbits;
 230   u_int16_t sadb_alg_reserved;
 231 };
 232
 233 struct sadb_spirange {
 234   u_int16_t sadb_spirange_len;
 235   u_int16_t sadb_spirange_exttype;
 236   u_int32_t sadb_spirange_min;
 237   u_int32_t sadb_spirange_max;
 238   u_int32_t sadb_spirange_reserved;
 239 };
 240
 241 struct sadb_x_kmprivate {
 242   u_int16_t sadb_x_kmprivate_len;
 243   u_int16_t sadb_x_kmprivate_exttype;
 244   u_int32_t sadb_x_kmprivate_reserved;
 245 };
 246
 247 /*
 248  * XXX Additional SA Extension.
 249  * mode: tunnel or transport
 250  * reqid: to make SA unique nevertheless the address pair of SA are same.
 251  *        Mainly it's for VPN.
 252  */
 253 struct sadb_x_sa2 {
 254   u_int16_t sadb_x_sa2_len;
 255   u_int16_t sadb_x_sa2_exttype;
 256   u_int8_t sadb_x_sa2_mode;
 257   union {
 258     u_int8_t sadb_x_sa2_reserved1;
 259 #ifdef PRIVATE
 260     u_int8_t sadb_x_sa2_alwaysexpire;
 261 #endif
 262   };
 263   union {
 264     u_int16_t sadb_x_sa2_reserved2;
 265 #ifdef PRIVATE
 266     u_int16_t sadb_x_sa2_flags;
 267 #endif
 268   };
 269   u_int32_t sadb_x_sa2_sequence;
 270   u_int32_t sadb_x_sa2_reqid;
 271 };
 272
 273 /* XXX Policy Extension */
 274 /* sizeof(struct sadb_x_policy) == 16 */
 275 struct sadb_x_policy {
 276   u_int16_t sadb_x_policy_len;
 277   u_int16_t sadb_x_policy_exttype;
 278   u_int16_t sadb_x_policy_type;         /* See policy type of ipsec.h */
 279   u_int8_t sadb_x_policy_dir;           /* direction, see ipsec.h */
 280   u_int8_t sadb_x_policy_reserved;
 281   u_int32_t sadb_x_policy_id;
 282   u_int32_t sadb_x_policy_reserved2;
 283 };
 284 /*
 285  * When policy_type == IPSEC, it is followed by some of
 286  * the ipsec policy request.
 287  * [total length of ipsec policy requests]
 288  *      = (sadb_x_policy_len * sizeof(uint64_t) - sizeof(struct sadb_x_policy))
 289  */
 290 #ifdef PRIVATE
 291 /* IPSec Interface Extension:
 292  * IPSec interface can be specified alone, or all three
 293  * of internal, outgoing, and IPSec interfaces must be
 294  * specified.
 295  */
 296 struct sadb_x_ipsecif {
 297         u_int16_t sadb_x_ipsecif_len;
 298         u_int16_t sadb_x_ipsecif_exttype;
 299         char sadb_x_ipsecif_internal_if[IFXNAMSIZ]; /* Steal packets from this interface */
 300         char sadb_x_ipsecif_outgoing_if[IFXNAMSIZ]; /* Send packets out on this interface */
 301         char sadb_x_ipsecif_ipsec_if[IFXNAMSIZ];  /* Direct packets through ipsec interface */
 302         u_int16_t sadb_x_ipsecif_init_disabled; /* 0 or 1, flag to ignore policy */
 303         u_int16_t reserved;
 304 };
 305 #endif
 306 /* XXX IPsec Policy Request Extension */
 307 /*
 308  * This structure is aligned 8 bytes.
 309  */
 310 struct sadb_x_ipsecrequest {
 311   u_int16_t sadb_x_ipsecrequest_len;    /* structure length aligned to 8 bytes.
 312                                          * This value is true length of bytes.
 313                                          * Not in units of 64 bits. */
 314   u_int16_t sadb_x_ipsecrequest_proto;  /* See ipsec.h */
 315   u_int8_t sadb_x_ipsecrequest_mode;    /* See IPSEC_MODE_XX in ipsec.h. */
 316   u_int8_t sadb_x_ipsecrequest_level;   /* See IPSEC_LEVEL_XX in ipsec.h */
 317   u_int16_t sadb_x_ipsecrequest_reqid;  /* See ipsec.h */
 318
 319   /*
 320    * followed by source IP address of SA, and immediately followed by
 321    * destination IP address of SA.  These encoded into two of sockaddr
 322    * structure without any padding.  Must set each sa_len exactly.
 323    * Each of length of the sockaddr structure are not aligned to 64bits,
 324    * but sum of x_request and addresses is aligned to 64bits.
 325    */
 326 };
 327
 328 struct sadb_session_id {
 329         u_int16_t            sadb_session_id_len;
 330         u_int16_t            sadb_session_id_exttype;
 331        /* [0] is an arbitrary handle that means something only for requester
 332         * [1] is a global session id for lookups in the kernel and racoon.
 333         */
 334         u_int64_t            sadb_session_id_v[2];
 335 } __attribute__ ((aligned(8)));
 336
 337 struct sastat {
 338         u_int32_t            spi;               /* SPI Value, network byte order */
 339         u_int32_t            created;           /* for lifetime */
 340         struct sadb_lifetime lft_c;             /* CURRENT lifetime. */
 341 }; // no need to align
 342
 343 struct sadb_sastat {
 344         u_int16_t            sadb_sastat_len;
 345         u_int16_t            sadb_sastat_exttype;
 346         u_int32_t            sadb_sastat_dir;
 347         u_int32_t            sadb_sastat_reserved;
 348         u_int32_t            sadb_sastat_list_len;
 349         /* list of struct sastat comes after */
 350 } __attribute__ ((aligned(8)));
 351
 352 #define SADB_EXT_RESERVED             0
 353 #define SADB_EXT_SA                   1
 354 #define SADB_EXT_LIFETIME_CURRENT     2
 355 #define SADB_EXT_LIFETIME_HARD        3
 356 #define SADB_EXT_LIFETIME_SOFT        4
 357 #define SADB_EXT_ADDRESS_SRC          5
 358 #define SADB_EXT_ADDRESS_DST          6
 359 #define SADB_EXT_ADDRESS_PROXY        7
 360 #define SADB_EXT_KEY_AUTH             8
 361 #define SADB_EXT_KEY_ENCRYPT          9
 362 #define SADB_EXT_IDENTITY_SRC         10
 363 #define SADB_EXT_IDENTITY_DST         11
 364 #define SADB_EXT_SENSITIVITY          12
 365 #define SADB_EXT_PROPOSAL             13
 366 #define SADB_EXT_SUPPORTED_AUTH       14
 367 #define SADB_EXT_SUPPORTED_ENCRYPT    15
 368 #define SADB_EXT_SPIRANGE             16
 369 #define SADB_X_EXT_KMPRIVATE          17
 370 #define SADB_X_EXT_POLICY             18
 371 #define SADB_X_EXT_SA2                19
 372 #define SADB_EXT_SESSION_ID           20
 373 #define SADB_EXT_SASTAT               21
 374 #define SADB_X_EXT_IPSECIF            22
 375 #define SADB_X_EXT_ADDR_RANGE_SRC_START 23
 376 #define SADB_X_EXT_ADDR_RANGE_SRC_END   24
 377 #define SADB_X_EXT_ADDR_RANGE_DST_START 25
 378 #define SADB_X_EXT_ADDR_RANGE_DST_END   26
 379 #define SADB_EXT_MAX                  26
 380
 381 #define SADB_SATYPE_UNSPEC      0
 382 #define SADB_SATYPE_AH          2
 383 #define SADB_SATYPE_ESP         3
 384 #define SADB_SATYPE_RSVP        5
 385 #define SADB_SATYPE_OSPFV2      6
 386 #define SADB_SATYPE_RIPV2       7
 387 #define SADB_SATYPE_MIP         8
 388 #define SADB_X_SATYPE_IPCOMP    9
 389 #define SADB_X_SATYPE_POLICY    10
 390 #define SADB_SATYPE_MAX         11
 391
 392 #define SADB_SASTATE_LARVAL   0
 393 #define SADB_SASTATE_MATURE   1
 394 #define SADB_SASTATE_DYING    2
 395 #define SADB_SASTATE_DEAD     3
 396 #define SADB_SASTATE_MAX      3
 397
 398 #define SADB_SAFLAGS_PFS      1
 399
 400 /* RFC2367 numbers - meets RFC2407 */
 401 #define SADB_AALG_NONE          0
 402 #define SADB_AALG_MD5HMAC       1       /*2*/
 403 #define SADB_AALG_SHA1HMAC      2       /*3*/
 404 #define SADB_AALG_MAX           8
 405 /* private allocations - based on RFC2407/IANA assignment */
 406 #define SADB_X_AALG_SHA2_256    6       /*5*/
 407 #define SADB_X_AALG_SHA2_384    7       /*6*/
 408 #define SADB_X_AALG_SHA2_512    8       /*7*/
 409 /* private allocations should use 249-255 (RFC2407) */
 410 #define SADB_X_AALG_MD5         3       /*249*/ /* Keyed MD5 */
 411 #define SADB_X_AALG_SHA         4       /*250*/ /* Keyed SHA */
 412 #define SADB_X_AALG_NULL        5       /*251*/ /* null authentication */
 413
 414 /* RFC2367 numbers - meets RFC2407 */
 415 #define SADB_EALG_NONE          0
 416 #define SADB_EALG_DESCBC        1       /*2*/
 417 #define SADB_EALG_3DESCBC       2       /*3*/
 418 #define SADB_EALG_NULL          3       /*11*/
 419 #define SADB_EALG_MAX           12
 420 /* private allocations - based on RFC2407/IANA assignment */
 421 #define SADB_X_EALG_CAST128CBC  5       /*6*/
 422 #define SADB_X_EALG_BLOWFISHCBC 4       /*7*/
 423 #define SADB_X_EALG_RIJNDAELCBC 12
 424 #define SADB_X_EALG_AESCBC      12
 425 #define SADB_X_EALG_AES         12
 426 /* private allocations should use 249-255 (RFC2407) */
 427
 428 #if 1   /*nonstandard */
 429 #define SADB_X_CALG_NONE        0
 430 #define SADB_X_CALG_OUI         1
 431 #define SADB_X_CALG_DEFLATE     2
 432 #define SADB_X_CALG_LZS         3
 433 #define SADB_X_CALG_MAX         4
 434 #endif
 435
 436 #define SADB_IDENTTYPE_RESERVED   0
 437 #define SADB_IDENTTYPE_PREFIX     1
 438 #define SADB_IDENTTYPE_FQDN       2
 439 #define SADB_IDENTTYPE_USERFQDN   3
 440 #define SADB_X_IDENTTYPE_ADDR     4
 441 #define SADB_IDENTTYPE_MAX        4
 442
 443 /* `flags' in sadb_sa structure holds followings */
 444 #define SADB_X_EXT_NONE         0x0000  /* i.e. new format. */
 445 #define SADB_X_EXT_OLD          0x0001  /* old format. */
 446 #ifdef PRIVATE
 447 #define SADB_X_EXT_NATT                         0x0002  /* Use UDP encapsulation to traverse NAT */
 448 #define SADB_X_EXT_NATT_KEEPALIVE       0x0004  /* Local node is behind NAT, send keepalives */
 449                                                                                         /* Should only be set for outbound SAs */
 450 #define SADB_X_EXT_NATT_MULTIPLEUSERS 0x0008    /* For use on VPN server - support multiple users       */
 451
 452 #endif /* PRIVATE */
 453
 454 #define SADB_X_EXT_IV4B         0x0010  /* IV length of 4 bytes in use */
 455 #define SADB_X_EXT_DERIV        0x0020  /* DES derived */
 456 #define SADB_X_EXT_CYCSEQ       0x0040  /* allowing to cyclic sequence. */
 457
 458         /* three of followings are exclusive flags each them */
 459 #define SADB_X_EXT_PSEQ         0x0000  /* sequencial padding for ESP */
 460 #define SADB_X_EXT_PRAND        0x0100  /* random padding for ESP */
 461 #define SADB_X_EXT_PZERO        0x0200  /* zero padding for ESP */
 462 #define SADB_X_EXT_PMASK        0x0300  /* mask for padding flag */
 463
 464 #ifdef PRIVATE
 465 #define SADB_X_EXT_NATT_DETECTED_PEER 0x1000
 466 #define SADB_X_EXT_ESP_KEEPALIVE      0x2000
 467 #define SADB_X_EXT_PUNT_RX_KEEPALIVE  0x4000
 468 #define SADB_X_EXT_NATT_KEEPALIVE_OFFLOAD  0x8000
 469 #endif /* PRIVATE */
 470
 471 #if 1
 472 #define SADB_X_EXT_RAWCPI       0x0080  /* use well known CPI (IPComp) */
 473 #endif
 474
 475 #define SADB_KEY_FLAGS_MAX      0x7fff
 476
 477 #ifdef PRIVATE
 478 #define SADB_X_EXT_SA2_DELETE_ON_DETACH   0x0001
 479 #endif
 480
 481 /* SPI size for PF_KEYv2 */
 482 #define PFKEY_SPI_SIZE  sizeof(u_int32_t)
 483
 484 /* Identifier for menber of lifetime structure */
 485 #define SADB_X_LIFETIME_ALLOCATIONS     0
 486 #define SADB_X_LIFETIME_BYTES           1
 487 #define SADB_X_LIFETIME_ADDTIME         2
 488 #define SADB_X_LIFETIME_USETIME         3
 489
 490 /* The rate for SOFT lifetime against HARD one. */
 491 #define PFKEY_SOFT_LIFETIME_RATE        80
 492
 493 /* Utilities */
 494 #define PFKEY_ALIGN8(a) (1 + (((a) - 1) | (8 - 1)))
 495 #define PFKEY_EXTLEN(msg) \
 496         PFKEY_UNUNIT64(((struct sadb_ext *)(msg))->sadb_ext_len)
 497 #define PFKEY_ADDR_PREFIX(ext) \
 498         (((struct sadb_address *)(ext))->sadb_address_prefixlen)
 499 #define PFKEY_ADDR_PROTO(ext) \
 500         (((struct sadb_address *)(ext))->sadb_address_proto)
 501 #define PFKEY_ADDR_SADDR(ext) \
 502         ((struct sockaddr *)((caddr_t)(ext) + sizeof(struct sadb_address)))
 503
 504 /* in 64bits */
 505 #define PFKEY_UNUNIT64(a)       ((a) << 3)
 506 #define PFKEY_UNIT64(a)         ((a) >> 3)
 507
 508 #endif /* __PFKEY_V2_H */
 509
 510 #endif /* _NET_PFKEYV2_H_ */