bsd/netat/at_pat.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 /*
  24  *      Copyright (c) 1988, 1989 Apple Computer, Inc.
  25  */
  26
  27 #ifndef _NETAT_AT_PAT_H_
  28 #define _NETAT_AT_PAT_H_
  29 #include <sys/appleapiopts.h>
  30
  31 /* This is header for the PAT module. This contains a table of pointers that
  32  * should get initialized with the BNET stuff and the ethernet driver. The
  33  * number of interfaces supported should be communicated. Should include
  34  * mbuf.h, if.h, socket.h
  35  *
  36  * Author: R. C. Venkatraman
  37  * Date  : 2/29/88
  38  */
  39
  40 typedef struct {
  41         unsigned char dst[6];
  42         unsigned char src[6];
  43         unsigned short len;
  44 } enet_header_t;
  45
  46 typedef struct {
  47         unsigned char dst_sap;
  48         unsigned char src_sap;
  49         unsigned char control;
  50         unsigned char protocol[5];
  51 } llc_header_t;
  52
  53 #define ENET_LLC_SIZE (sizeof(enet_header_t)+sizeof(llc_header_t))
  54 #define SNAP_UI         0x03  /* bits 11000000 reversed!! */
  55 #define SNAP_AT_SAP     0xaa
  56 #define SNAP_PROTO_AT   {0x08, 0x00, 0x07, 0x80, 0x9B}
  57 #define SNAP_PROTO_AARP {0x00, 0x00, 0x00, 0x80, 0xF3}
  58 #define SNAP_HDR_AT     {SNAP_AT_SAP, SNAP_AT_SAP, SNAP_UI, SNAP_PROTO_AT}
  59 #define SNAP_HDR_AARP   {SNAP_AT_SAP, SNAP_AT_SAP, SNAP_UI, SNAP_PROTO_AARP}
  60
  61 #define LLC_PROTO_EQUAL(a1, a2)                                         \
  62         ((*((unsigned long *)(a1)) == *((unsigned long *)(a2))) &&      \
  63          (a1[4] == a2[4])                                               \
  64         )
  65 #endif /* _NETAT_AT_PAT_H_ */