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   1 /*
   2  * Copyright (c) 1993, 1994, 1997
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that: (1) source code distributions
   7  * retain the above copyright notice and this paragraph in its entirety, (2)
   8  * distributions including binary code include the above copyright notice and
   9  * this paragraph in its entirety in the documentation or other materials
  10  * provided with the distribution, and (3) all advertising materials mentioning
  11  * features or use of this software display the following acknowledgement:
  12  * ``This product includes software developed by the University of California,
  13  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  14  * the University nor the names of its contributors may be used to endorse
  15  * or promote products derived from this software without specific prior
  16  * written permission.
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  20  */
  21
  22 /*
  23  * Definitions for information in the LLC header.
  24  */
  25
  26 #define LLC_U_FMT       3
  27 #define LLC_GSAP        1
  28 #define LLC_IG          1 /* Individual / Group */
  29 #define LLC_S_FMT       1
  30
  31 #define LLC_U_POLL      0x10
  32 #define LLC_IS_POLL     0x0100
  33 #define LLC_XID_FI      0x81
  34
  35 #define LLC_U_CMD_MASK  0xef
  36 #define LLC_UI          0x03
  37 #define LLC_UA          0x63
  38 #define LLC_DISC        0x43
  39 #define LLC_DM          0x0f
  40 #define LLC_SABME       0x6f
  41 #define LLC_TEST        0xe3
  42 #define LLC_XID         0xaf
  43 #define LLC_FRMR        0x87
  44
  45 #define LLC_S_CMD_MASK  0x0f
  46 #define LLC_RR          0x0001
  47 #define LLC_RNR         0x0005
  48 #define LLC_REJ         0x0009
  49
  50 #define LLC_IS_NR(is)   (((is) >> 9) & 0x7f)
  51 #define LLC_I_NS(is)    (((is) >> 1) & 0x7f)
  52
  53 /*
  54  * 802.2 LLC SAP values.
  55  */
  56
  57 #ifndef LLCSAP_NULL
  58 #define LLCSAP_NULL             0x00
  59 #endif
  60 #ifndef LLCSAP_GLOBAL
  61 #define LLCSAP_GLOBAL           0xff
  62 #endif
  63 #ifndef LLCSAP_8021B_I
  64 #define LLCSAP_8021B_I          0x02
  65 #endif
  66 #ifndef LLCSAP_8021B_G
  67 #define LLCSAP_8021B_G          0x03
  68 #endif
  69 #ifndef LLCSAP_IP
  70 #define LLCSAP_IP               0x06
  71 #endif
  72 #ifndef LLCSAP_PROWAYNM
  73 #define LLCSAP_PROWAYNM         0x0e
  74 #endif
  75 #ifndef LLCSAP_8021D
  76 #define LLCSAP_8021D            0x42
  77 #endif
  78 #ifndef LLCSAP_RS511
  79 #define LLCSAP_RS511            0x4e
  80 #endif
  81 #ifndef LLCSAP_ISO8208
  82 #define LLCSAP_ISO8208          0x7e
  83 #endif
  84 #ifndef LLCSAP_PROWAY
  85 #define LLCSAP_PROWAY           0x8e
  86 #endif
  87 #ifndef LLCSAP_SNAP
  88 #define LLCSAP_SNAP             0xaa
  89 #endif
  90 #ifndef LLCSAP_IPX
  91 #define LLCSAP_IPX              0xe0
  92 #endif
  93 #ifndef LLCSAP_NETBEUI
  94 #define LLCSAP_NETBEUI          0xf0
  95 #endif
  96 #ifndef LLCSAP_ISONS
  97 #define LLCSAP_ISONS            0xfe
  98 #endif