projects / dragonfly.git / blame
| Commit | Line | Data |
|---|---|---|
| c8cf0f94 PA |
1 | /* @(#) $Header: /tcpdump/master/tcpdump/token.h,v 1.6 2002/12/11 07:14:12 guy Exp $ (LBL) */ |
| 2 | /* | |
| 3 | * Copyright (c) 1998, Larry Lile | |
| 4 | * All rights reserved. | |
| 5 | * | |
| 6 | * Redistribution and use in source and binary forms, with or without | |
| 7 | * modification, are permitted provided that the following conditions | |
| 8 | * are met: | |
| 9 | * 1. Redistributions of source code must retain the above copyright | |
| 10 | * notice unmodified, this list of conditions, and the following | |
| 11 | * disclaimer. | |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 | * notice, this list of conditions and the following disclaimer in the | |
| 14 | * documentation and/or other materials provided with the distribution. | |
| 15 | * | |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
| 17 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 22 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 23 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 24 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 25 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 26 | * SUCH DAMAGE. | |
| 27 | * | |
| 28 | */ | |
| 29 | ||
| 30 | #define TOKEN_HDRLEN 14 | |
| 31 | #define TOKEN_RING_MAC_LEN 6 | |
| 32 | #define ROUTING_SEGMENT_MAX 16 | |
| 33 | #define IS_SOURCE_ROUTED(trp) ((trp)->token_shost[0] & 0x80) | |
| 34 | #define FRAME_TYPE(trp) (((trp)->token_fc & 0xC0) >> 6) | |
| 35 | #define TOKEN_FC_LLC 1 | |
| 36 | ||
| 37 | #define BROADCAST(trp) ((ntohs((trp)->token_rcf) & 0xE000) >> 13) | |
| 38 | #define RIF_LENGTH(trp) ((ntohs((trp)->token_rcf) & 0x1f00) >> 8) | |
| 39 | #define DIRECTION(trp) ((ntohs((trp)->token_rcf) & 0x0080) >> 7) | |
| 40 | #define LARGEST_FRAME(trp) ((ntohs((trp)->token_rcf) & 0x0070) >> 4) | |
| 41 | #define RING_NUMBER(trp, x) ((ntohs((trp)->token_rseg[x]) & 0xfff0) >> 4) | |
| 42 | #define BRIDGE_NUMBER(trp, x) ((ntohs((trp)->token_rseg[x]) & 0x000f)) | |
| 43 | #define SEGMENT_COUNT(trp) ((int)((RIF_LENGTH(trp) - 2) / 2)) | |
| 44 | ||
| 45 | struct token_header { | |
| 46 | u_int8_t token_ac; | |
| 47 | u_int8_t token_fc; | |
| 48 | u_int8_t token_dhost[TOKEN_RING_MAC_LEN]; | |
| 49 | u_int8_t token_shost[TOKEN_RING_MAC_LEN]; | |
| 50 | u_int16_t token_rcf; | |
| 51 | u_int16_t token_rseg[ROUTING_SEGMENT_MAX]; | |
| 52 | }; |