| 1 | /* $NetBSD: ieee8023_tlv.h,v 1.3 2007/02/21 23:00:06 thorpej Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c)2005 YAMAMOTO Takashi, |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following 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 | #ifndef _NET_AGR_IEEE8023_TLV_H_ |
| 30 | #define _NET_AGR_IEEE8023_TLV_H_ |
| 31 | |
| 32 | /* |
| 33 | * TLV on-wire structure. |
| 34 | */ |
| 35 | |
| 36 | struct tlvhdr { |
| 37 | uint8_t tlv_type; |
| 38 | uint8_t tlv_length; |
| 39 | /* uint8_t tlv_value[]; */ |
| 40 | } __packed; |
| 41 | |
| 42 | /* |
| 43 | * ... and our implementation. |
| 44 | */ |
| 45 | |
| 46 | #define TLV_SET(tlv, type, length) \ |
| 47 | do { \ |
| 48 | (tlv)->tlv_type = (type); \ |
| 49 | (tlv)->tlv_length = sizeof(*tlv) + (length); \ |
| 50 | } while (/*CONSTCOND*/0) |
| 51 | |
| 52 | struct tlv_template { |
| 53 | uint8_t tmpl_type; |
| 54 | uint8_t tmpl_length; |
| 55 | }; |
| 56 | |
| 57 | int tlv_check(const void *, size_t, const struct tlvhdr *, |
| 58 | const struct tlv_template *, bool); |
| 59 | |
| 60 | #endif /* !_NET_AGR_IEEE8023_TLV_H_ */ |
| 61 | |