bsd/netat/at_pat.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25
  26 /*
  27  *      Copyright (c) 1988, 1989 Apple Computer, Inc.
  28  */
  29
  30 #ifndef _NETAT_AT_PAT_H_
  31 #define _NETAT_AT_PAT_H_
  32 #include <sys/appleapiopts.h>
  33
  34 /* This is header for the PAT module. This contains a table of pointers that
  35  * should get initialized with the BNET stuff and the ethernet driver. The
  36  * number of interfaces supported should be communicated. Should include
  37  * mbuf.h, if.h, socket.h
  38  *
  39  * Author: R. C. Venkatraman
  40  * Date  : 2/29/88
  41  */
  42
  43 typedef struct {
  44         unsigned char dst[6];
  45         unsigned char src[6];
  46         unsigned short len;
  47 } enet_header_t;
  48
  49 typedef struct {
  50         unsigned char dst_sap;
  51         unsigned char src_sap;
  52         unsigned char control;
  53         unsigned char protocol[5];
  54 } llc_header_t;
  55
  56 #define ENET_LLC_SIZE (sizeof(enet_header_t)+sizeof(llc_header_t))
  57 #define SNAP_UI         0x03  /* bits 11000000 reversed!! */
  58 #define SNAP_AT_SAP     0xaa
  59 #define SNAP_PROTO_AT   {0x08, 0x00, 0x07, 0x80, 0x9B}
  60 #define SNAP_PROTO_AARP {0x00, 0x00, 0x00, 0x80, 0xF3}
  61 #define SNAP_HDR_AT     {SNAP_AT_SAP, SNAP_AT_SAP, SNAP_UI, SNAP_PROTO_AT}
  62 #define SNAP_HDR_AARP   {SNAP_AT_SAP, SNAP_AT_SAP, SNAP_UI, SNAP_PROTO_AARP}
  63
  64 #define LLC_PROTO_EQUAL(a1, a2)                                         \
  65         ((*((unsigned long *)(a1)) == *((unsigned long *)(a2))) &&      \
  66          (a1[4] == a2[4])                                               \
  67         )
  68 #endif /* _NETAT_AT_PAT_H_ */