sys/dev/pci/n8/common/api/n8_packet_IPSec.h

   1 /*-
   2  * Copyright (C) 2001-2003 by NBMK Encryption Technologies.
   3  * All rights reserved.
   4  *
   5  * NBMK Encryption Technologies provides no support of any kind for
   6  * this software.  Questions or concerns about it may be addressed to
   7  * the members of the relevant open-source community at
   8  * <tech-crypto@netbsd.org>.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions are
  12  * met:
  13  *
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  *
  17  * 2. Redistributions in binary form must reproduce the above
  18  *    copyright notice, this list of conditions and the following
  19  *    disclaimer in the documentation and/or other materials provided
  20  *    with the distribution.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  24  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  25  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  26  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  27  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  28  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  32  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 /*****************************************************************************
  36  * @(#) n8_packet_IPSec.h 1.14@(#)
  37  *****************************************************************************/
  38
  39 /*****************************************************************************/
  40 /** @file n8_packet_IPSec.h
  41  *  @brief Header for IPSec Packet functions.
  42  *
  43  *
  44  *****************************************************************************/
  45
  46 /*****************************************************************************
  47  * Revision history:
  48  * 06/06/03 brr   Move useful defines to public include.
  49  * 04/19/02 bac   Corrected IPSEC_DATA_LENGTH_MIN and
  50  *                IPSEC_DECRYPTED_DATA_LENGTH_MIN values.  Created a new define
  51  *                IPSEC_DATA_BLOCK_SIZE.  Fixes BUG #716.
  52  * 10/12/01 dkm   Moved public portion to n8_pub_packet.h.
  53  * 08/27/01 mel   Deleted IPSEC_SET.. definisions - they are not in use.
  54  * 06/25/01 bac   Added IPSEC_AUTHENTICATION_DATA_LENGTH
  55  * 05/23/01 bac   Original version.
  56  ****************************************************************************/
  57 #ifndef N8_PACKET_IPSEC_H
  58 #define N8_PACKET_IPSEC_H
  59
  60 #include "n8_packet.h"
  61 #include "n8_pub_packet.h"
  62 #include "n8_pub_errors.h"
  63
  64 #define     IPSEC_DATA_BLOCK_SIZE 8
  65 #define     IPSEC_DECRYPTED_DATA_LENGTH_MIN 36
  66 #define     IPSEC_AUTHENTICATION_DATA_LENGTH 12
  67
  68 #define IPSEC_SPI_OFFSET                0
  69 #define IPSEC_SEQUENCE_NIMBER_OFFSET    4
  70
  71 #define IPSEC_EXTRACT_SPI(PACKET_P)    ((uint32_t) BE_to_uint32(&PACKET_P[IPSEC_SPI_OFFSET]))
  72 #define IPSEC_EXTRACT_SEQUENCE_NIMBER(PACKET_P)  ((uint32_t) BE_to_uint32(&PACKET_P[IPSEC_SEQUENCE_NIMBER_OFFSET]))
  73
  74 #endif
  75