[apple/xnu.git] / bsd / net / if_llc.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Copyright (c) 1988, 1993
 *	The 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	8.1 (Berkeley) 6/10/93
 */

#ifndef _NET_IF_LLC_H_
#define _NET_IF_LLC_H_

/*
 * 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 shortcomings 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;
		struct frmrinfo {
			u_char rej_pdu_0;
			u_char rej_pdu_1;
			u_char frmr_control;
			u_char frmr_control_ext;
			u_char frmr_cause;
		} frmrinfo;
	    } type_frmr;
	    struct {
		u_char control;
		u_char org_code[3];
		u_short ether_type;
	    } type_snap;
	    struct {
		u_char control;
		u_char control_ext;
	    } type_raw;
	} llc_un;
};
#define llc_control            llc_un.type_u.control
#define	llc_control_ext        llc_un.type_raw.control_ext
#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_frmrinfo           llc_un.type_frmr.frmrinfo
#define llc_frmr_pdu0          llc_un.type_frmr.frmrinfo.rej_pdu0
#define llc_frmr_pdu1          llc_un.type_frmr.frmrinfo.rej_pdu1
#define llc_frmr_control       llc_un.type_frmr.frmrinfo.frmr_control
#define llc_frmr_control_ext   llc_un.type_frmr.frmrinfo.frmr_control_ext
#define llc_frmr_cause         llc_un.type_frmr.frmrinfo.frmr_control_ext

/*
 * Don't use sizeof(struct llc_un) for LLC header sizes
 */
#define LLC_ISFRAMELEN 4
#define LLC_UFRAMELEN  3
#define LLC_FRMRLEN    7

/*
 * Unnumbered LLC format commands
 */
#define LLC_UI		0x3
#define LLC_UI_P	0x13
#define LLC_DISC	0x43
#define	LLC_DISC_P	0x53
#define LLC_UA		0x63
#define LLC_UA_P	0x73
#define LLC_TEST	0xe3
#define LLC_TEST_P	0xf3
#define LLC_FRMR	0x87
#define	LLC_FRMR_P	0x97
#define LLC_DM		0x0f
#define	LLC_DM_P	0x1f
#define LLC_XID		0xaf
#define LLC_XID_P	0xbf
#define LLC_SABME	0x6f
#define LLC_SABME_P	0x7f

/*
 * Supervisory LLC commands
 */
#define	LLC_RR		0x01
#define	LLC_RNR		0x05
#define	LLC_REJ		0x09

/*
 * Info format - dummy only
 */
#define	LLC_INFO	0x00

/*
 * ISO PDTR 10178 contains among others
 */
#define LLC_X25_LSAP	0x7e
#define LLC_SNAP_LSAP	0xaa
#define LLC_ISO_LSAP	0xfe

#endif
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* Copyright (c) 1988, 1993
	24	* The Regents of the University of California. All rights reserved.
	25	*
	26	* Redistribution and use in source and binary forms, with or without
	27	* modification, are permitted provided that the following conditions
	28	* are met:
	29	* 1. Redistributions of source code must retain the above copyright
	30	* notice, this list of conditions and the following disclaimer.
	31	* 2. Redistributions in binary form must reproduce the above copyright
	32	* notice, this list of conditions and the following disclaimer in the
	33	* documentation and/or other materials provided with the distribution.
	34	* 3. All advertising materials mentioning features or use of this software
	35	* must display the following acknowledgement:
	36	* This product includes software developed by the University of
	37	* California, Berkeley and its contributors.
	38	* 4. Neither the name of the University nor the names of its contributors
	39	* may be used to endorse or promote products derived from this software
	40	* without specific prior written permission.
	41	*
	42	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	43	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	44	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	45	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	46	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	47	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	48	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	49	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	50	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	51	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	52	* SUCH DAMAGE.
	53	*
	54	* @(#)if_llc.h 8.1 (Berkeley) 6/10/93
	55	*/
	56
	57	#ifndef _NET_IF_LLC_H_
	58	#define _NET_IF_LLC_H_
	59
	60	/*
	61	* IEEE 802.2 Link Level Control headers, for use in conjunction with
	62	* 802.{3,4,5} media access control methods.
	63	*
	64	* Headers here do not use bit fields due to shortcomings in many
65	* compilers.
66	*/
67
68	struct llc {
69	u_char llc_dsap;
70	u_char llc_ssap;
71	union {
72	struct {
73	u_char control;
74	u_char format_id;
75	u_char class;
76	u_char window_x2;
77	} type_u;
78	struct {
79	u_char num_snd_x2;
80	u_char num_rcv_x2;
81	} type_i;
82	struct {
83	u_char control;
84	u_char num_rcv_x2;
85	} type_s;
86	struct {
87	u_char control;
88	struct frmrinfo {
89	u_char rej_pdu_0;
90	u_char rej_pdu_1;
91	u_char frmr_control;
92	u_char frmr_control_ext;
93	u_char frmr_cause;
94	} frmrinfo;
95	} type_frmr;
96	struct {
97	u_char control;
98	u_char org_code[3];
99	u_short ether_type;
100	} type_snap;
101	struct {
102	u_char control;
103	u_char control_ext;
104	} type_raw;
105	} llc_un;
106	};
107	#define llc_control llc_un.type_u.control
108	#define llc_control_ext llc_un.type_raw.control_ext
109	#define llc_fid llc_un.type_u.format_id
110	#define llc_class llc_un.type_u.class
111	#define llc_window llc_un.type_u.window_x2
112	#define llc_frmrinfo llc_un.type_frmr.frmrinfo
113	#define llc_frmr_pdu0 llc_un.type_frmr.frmrinfo.rej_pdu0
114	#define llc_frmr_pdu1 llc_un.type_frmr.frmrinfo.rej_pdu1
115	#define llc_frmr_control llc_un.type_frmr.frmrinfo.frmr_control
116	#define llc_frmr_control_ext llc_un.type_frmr.frmrinfo.frmr_control_ext
117	#define llc_frmr_cause llc_un.type_frmr.frmrinfo.frmr_control_ext
118
119	/*
120	* Don't use sizeof(struct llc_un) for LLC header sizes
121	*/
122	#define LLC_ISFRAMELEN 4
123	#define LLC_UFRAMELEN 3
124	#define LLC_FRMRLEN 7
125
126	/*
127	* Unnumbered LLC format commands
128	*/
129	#define LLC_UI 0x3
130	#define LLC_UI_P 0x13
131	#define LLC_DISC 0x43
132	#define LLC_DISC_P 0x53
133	#define LLC_UA 0x63
134	#define LLC_UA_P 0x73
135	#define LLC_TEST 0xe3
136	#define LLC_TEST_P 0xf3
137	#define LLC_FRMR 0x87
138	#define LLC_FRMR_P 0x97
139	#define LLC_DM 0x0f
140	#define LLC_DM_P 0x1f
141	#define LLC_XID 0xaf
142	#define LLC_XID_P 0xbf
143	#define LLC_SABME 0x6f
144	#define LLC_SABME_P 0x7f
145
146	/*
147	* Supervisory LLC commands
148	*/
149	#define LLC_RR 0x01
150	#define LLC_RNR 0x05
151	#define LLC_REJ 0x09
152
153	/*
154	* Info format - dummy only
155	*/
156	#define LLC_INFO 0x00
157
158	/*
159	* ISO PDTR 10178 contains among others
160	*/
161	#define LLC_X25_LSAP 0x7e
162	#define LLC_SNAP_LSAP 0xaa
163	#define LLC_ISO_LSAP 0xfe
164
165	#endif