[unix-history] / sys / net / if_llc.h

/*
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)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
Commit	Line	Data
15637ed4 RG	1	/*
	2	* Copyright (c) 1988 Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*
	33	* @(#)if_llc.h 7.2 (Berkeley) 6/28/90
	34	*/
	35
	36	/*
	37	* IEEE 802.2 Link Level Control headers, for use in conjunction with
	38	* 802.{3,4,5} media access control methods.
	39	*
	40	* Headers here do not use bit fields due to shortcommings in many
	41	* compilers.
	42	*/
	43
	44	struct llc {
	45	u_char llc_dsap;
	46	u_char llc_ssap;
	47	union {
	48	struct {
	49	u_char control;
	50	u_char format_id;
	51	u_char class;
	52	u_char window_x2;
	53	} type_u;
	54	struct {
	55	u_char num_snd_x2;
	56	u_char num_rcv_x2;
	57	} type_i;
	58	struct {
	59	u_char control;
	60	u_char num_rcv_x2;
	61	} type_s;
	62	struct {
	63	u_char control;
	64	u_char org_code[3];
65	u_short ether_type;
66	} type_snap;
67	} llc_un;
68	};
69	#define llc_control llc_un.type_u.control
70	#define llc_fid llc_un.type_u.format_id
71	#define llc_class llc_un.type_u.class
72	#define llc_window llc_un.type_u.window_x2
73
74	#define LLC_UI 0x3
75	#define LLC_UI_P 0x13
76	#define LLC_XID 0xaf
77	#define LLC_XID_P 0xbf
78	#define LLC_TEST 0xe3
79	#define LLC_TEST_P 0xf3
80
81	#define LLC_ISO_LSAP 0xfe
82	#define LLC_SNAP_LSAP 0xaa