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iftop

    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:  * @(#) $Header: /usr/local/www/users/anoncvs/cvs/embedaddon/iftop/llc.h,v 1.1.1.1 2012/02/21 16:57:34 misho Exp $ (LBL)
   22:  */
   23: 
   24: /*
   25:  * This stuff should come from a system header file, but there's no
   26:  * obviously portable way to do that and it's not really going
   27:  * to change from system to system.
   28:  */
   29: 
   30: /*
   31:  * A somewhat abstracted view of the LLC header
   32:  */
   33: 
   34: struct llc {
   35: 	u_int8_t dsap;
   36: 	u_int8_t ssap;
   37: 	union {
   38: 		u_int8_t u_ctl;
   39: 		u_int16_t is_ctl;
   40: 		struct {
   41: 			u_int8_t snap_ui;
   42: 			u_int8_t snap_pi[5];
   43: 		} snap;
   44: 		struct {
   45: 			u_int8_t snap_ui;
   46: 			u_int8_t snap_orgcode[3];
   47: 			u_int8_t snap_ethertype[2];
   48: 		} snap_ether;
   49: 	} ctl;
   50: };
   51: 
   52: #define	llcui		ctl.snap.snap_ui
   53: #define	llcpi		ctl.snap.snap_pi
   54: #define	llc_orgcode	ctl.snap_ether.snap_orgcode
   55: #define	llc_ethertype	ctl.snap_ether.snap_ethertype
   56: #define	llcis		ctl.is_ctl
   57: #define	llcu		ctl.u_ctl
   58: 
   59: #define	LLC_U_FMT	3
   60: #define	LLC_GSAP	1
   61: #define LLC_S_FMT	1
   62: 
   63: #define	LLC_U_POLL	0x10
   64: #define	LLC_IS_POLL	0x0100
   65: #define	LLC_XID_FI	0x81
   66: 
   67: #define	LLC_U_CMD(u)	((u) & 0xef)
   68: #define	LLC_UI		0x03
   69: #define	LLC_UA		0x63
   70: #define	LLC_DISC	0x43
   71: #define	LLC_DM		0x0f
   72: #define	LLC_SABME	0x6f
   73: #define	LLC_TEST	0xe3
   74: #define	LLC_XID		0xaf
   75: #define	LLC_FRMR	0x87
   76: 
   77: #define	LLC_S_CMD(is)	(((is) >> 1) & 0x03)
   78: #define	LLC_RR		0x0001
   79: #define	LLC_RNR		0x0005
   80: #define	LLC_REJ		0x0009
   81: 
   82: #define LLC_IS_NR(is)	(((is) >> 9) & 0x7f)
   83: #define LLC_I_NS(is)	(((is) >> 1) & 0x7f)
   84: 
   85: #ifndef LLCSAP_NULL
   86: #define	LLCSAP_NULL		0x00
   87: #endif
   88: #ifndef LLCSAP_GLOBAL
   89: #define	LLCSAP_GLOBAL		0xff
   90: #endif
   91: #ifndef LLCSAP_8021B_I
   92: #define	LLCSAP_8021B_I		0x02
   93: #endif
   94: #ifndef LLCSAP_8021B_G
   95: #define	LLCSAP_8021B_G		0x03
   96: #endif
   97: #ifndef LLCSAP_IP
   98: #define	LLCSAP_IP		0x06
   99: #endif
  100: #ifndef LLCSAP_PROWAYNM
  101: #define	LLCSAP_PROWAYNM		0x0e
  102: #endif
  103: #ifndef LLCSAP_8021D
  104: #define	LLCSAP_8021D		0x42
  105: #endif
  106: #ifndef LLCSAP_RS511
  107: #define	LLCSAP_RS511		0x4e
  108: #endif
  109: #ifndef LLCSAP_ISO8208
  110: #define	LLCSAP_ISO8208		0x7e
  111: #endif
  112: #ifndef LLCSAP_PROWAY
  113: #define	LLCSAP_PROWAY		0x8e
  114: #endif
  115: #ifndef LLCSAP_SNAP
  116: #define	LLCSAP_SNAP		0xaa
  117: #endif
  118: #ifndef LLCSAP_IPX
  119: #define LLCSAP_IPX		0xe0
  120: #endif
  121: #ifndef LLCSAP_NETBEUI
  122: #define LLCSAP_NETBEUI		0xf0
  123: #endif
  124: #ifndef LLCSAP_ISONS
  125: #define	LLCSAP_ISONS		0xfe
  126: #endif
  127: 
  128: #define	OUI_ENCAP_ETHER	0x000000	/* encapsulated Ethernet */
  129: #define	OUI_CISCO	0x00000c	/* Cisco protocols */
  130: #define	ETHERTYPE_CISCO_CDP	0x2000	/* Cisco Discovery Protocol */
  131: #define	OUI_CISCO_90	0x0000f8	/* Cisco bridging */
  132: #define	OUI_APPLETALK	0x080007	/* Appletalk */