/* * Copyright (c) 1988 Regents of the University of California. * All rights reserved. * * Redistribution is only permitted until one year after the first shipment * of 4.4BSD by the Regents. Otherwise, redistribution and use in source and * binary forms are permitted provided that: (1) source distributions retain * this entire copyright notice and comment, and (2) distributions including * binaries display the following acknowledgement: This product includes * software developed by the University of California, Berkeley and its * contributors'' in the documentation or other materials provided with the * distribution and in all advertising materials mentioning features or use * of this software. Neither the name of the University nor the names of * its contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * @(#)if_llc.h 7.2 (Berkeley) 6/28/90 */ /* * IEEE 802.2 Link Level Control headers, for use in conjunction with * 802.{3,4,5} media access control methods. * * Headers here do not use bit fields due to shortcommings in many * compilers. */ struct llc { u_char llc_dsap; u_char llc_ssap; union { struct { u_char control; u_char format_id; u_char class; u_char window_x2; } type_u; struct { u_char num_snd_x2; u_char num_rcv_x2; } type_i; struct { u_char control; u_char num_rcv_x2; } type_s; struct { u_char control; u_char org_code[3]; u_short ether_type; } type_snap; } llc_un; }; #define llc_control llc_un.type_u.control #define llc_fid llc_un.type_u.format_id #define llc_class llc_un.type_u.class #define llc_window llc_un.type_u.window_x2 #define LLC_UI 0x3 #define LLC_UI_P 0x13 #define LLC_XID 0xaf #define LLC_XID_P 0xbf #define LLC_TEST 0xe3 #define LLC_TEST_P 0xf3 #define LLC_ISO_LSAP 0xfe #define LLC_SNAP_LSAP 0xaa