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      1  1.3  thorpej /*	$NetBSD: ieee8023_tlv.h,v 1.3 2007/02/21 23:00:06 thorpej Exp $	*/
      2  1.1     yamt 
      3  1.1     yamt /*-
      4  1.1     yamt  * Copyright (c)2005 YAMAMOTO Takashi,
      5  1.1     yamt  * All rights reserved.
      6  1.1     yamt  *
      7  1.1     yamt  * Redistribution and use in source and binary forms, with or without
      8  1.1     yamt  * modification, are permitted provided that the following conditions
      9  1.1     yamt  * are met:
     10  1.1     yamt  * 1. Redistributions of source code must retain the above copyright
     11  1.1     yamt  *    notice, this list of conditions and the following disclaimer.
     12  1.1     yamt  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1     yamt  *    notice, this list of conditions and the following disclaimer in the
     14  1.1     yamt  *    documentation and/or other materials provided with the distribution.
     15  1.1     yamt  *
     16  1.1     yamt  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  1.1     yamt  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  1.1     yamt  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  1.1     yamt  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  1.1     yamt  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  1.1     yamt  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  1.1     yamt  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  1.1     yamt  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  1.1     yamt  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  1.1     yamt  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  1.1     yamt  * SUCH DAMAGE.
     27  1.1     yamt  */
     28  1.1     yamt 
     29  1.2     elad #ifndef _NET_AGR_IEEE8023_TLV_H_
     30  1.1     yamt #define	_NET_AGR_IEEE8023_TLV_H_
     31  1.1     yamt 
     32  1.1     yamt /*
     33  1.1     yamt  * TLV on-wire structure.
     34  1.1     yamt  */
     35  1.1     yamt 
     36  1.1     yamt struct tlvhdr {
     37  1.1     yamt 	uint8_t tlv_type;
     38  1.1     yamt 	uint8_t tlv_length;
     39  1.1     yamt 	/* uint8_t tlv_value[]; */
     40  1.1     yamt } __packed;
     41  1.1     yamt 
     42  1.1     yamt /*
     43  1.1     yamt  * ... and our implementation.
     44  1.1     yamt  */
     45  1.1     yamt 
     46  1.1     yamt #define	TLV_SET(tlv, type, length) \
     47  1.1     yamt 	do { \
     48  1.1     yamt 		(tlv)->tlv_type = (type); \
     49  1.1     yamt 		(tlv)->tlv_length = sizeof(*tlv) + (length); \
     50  1.1     yamt 	} while (/*CONSTCOND*/0)
     51  1.1     yamt 
     52  1.1     yamt struct tlv_template {
     53  1.1     yamt 	uint8_t tmpl_type;
     54  1.1     yamt 	uint8_t tmpl_length;
     55  1.1     yamt };
     56  1.1     yamt 
     57  1.1     yamt int tlv_check(const void *, size_t, const struct tlvhdr *,
     58  1.3  thorpej     const struct tlv_template *, bool);
     59  1.1     yamt 
     60  1.2     elad #endif /* !_NET_AGR_IEEE8023_TLV_H_ */
     61