projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 394326e6 MK |
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 are permitted | |
| 6 | * provided that the above copyright notice and this paragraph are | |
| 7 | * duplicated in all such forms and that any documentation, | |
| 8 | * advertising materials, and other materials related to such | |
| 9 | * distribution and use acknowledge that the software was developed | |
| 10 | * by the University of California, Berkeley. The name of the | |
| 11 | * University may not be used to endorse or promote products derived | |
| 12 | * from this software without specific prior written permission. | |
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 16 | * | |
| 17 | * @(#)if_llc.h 7.1 (Berkeley) %G% | |
| 18 | */ | |
| 19 | ||
| 20 | /* | |
| 21 | * IEEE 802.2 Link Level Control headers, for use in conjunction with | |
| 22 | * 802.{3,4,5} media access control methods. | |
| 23 | * | |
| 24 | * Headers here do not use bit fields due to shortcommings in many | |
| 25 | * compilers. | |
| 26 | */ | |
| 27 | ||
| 28 | struct llc { | |
| 29 | u_char llc_dsap; | |
| 30 | u_char llc_ssap; | |
| 31 | union { | |
| 32 | struct { | |
| 33 | u_char control; | |
| 34 | u_char format_id; | |
| 35 | u_char class; | |
| 36 | u_char window_x2; | |
| 37 | } type_u; | |
| 38 | struct { | |
| 39 | u_char num_snd_x2; | |
| 40 | u_char num_rcv_x2; | |
| 41 | } type_i; | |
| 42 | struct { | |
| 43 | u_char control; | |
| 44 | u_char num_rcv_x2; | |
| 45 | } type_s; | |
| 46 | struct { | |
| 47 | u_char control; | |
| 48 | u_char org_code[3]; | |
| 49 | u_short ether_type; | |
| 50 | } type_snap; | |
| 51 | } llc_un; | |
| 52 | }; | |
| 53 | #define llc_control llc_un.type_u.control | |
| 54 | #define llc_fid llc_un.type_u.format_id | |
| 55 | #define llc_class llc_un.type_u.class | |
| 56 | #define llc_window llc_un.type_u.window_x2 | |
| 57 | ||
| 58 | #define LLC_UI 0x3 | |
| 59 | #define LLC_UI_P 0x13 | |
| 60 | #define LLC_XID 0xaf | |
| 61 | #define LLC_XID_P 0xbf | |
| 62 | #define LLC_TEST 0xe3 | |
| 63 | #define LLC_TEST_P 0xf3 | |
| 64 | ||
| 65 | #define LLC_ISO_LSAP 0xfe | |
| 66 | #define LLC_SNAP_LSAP 0xaa |