1 /* $NetBSD: pdu.h,v 1.3 2013/07/11 05:45:23 kefren Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Mihai Chelaru <kefren@NetBSD.org> 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _PDU_H_ 33 #define _PDU_H_ 34 35 #include <sys/types.h> 36 #include <netinet/in.h> 37 38 #include "ldp_peer.h" 39 40 #define MIN_PDU_SIZE 10 41 #define MAX_PDU_SIZE 1300 42 43 #define PDU_VER_LENGTH (sizeof(uint16_t) + sizeof(uint16_t)) 44 #define PDU_PAYLOAD_LENGTH (sizeof(struct in_addr) + sizeof(uint16_t)) 45 46 struct ldp_pdu { 47 uint16_t version; 48 uint16_t length; 49 /* draft-ietf-mpls-ldp-ipv6-07 keeps this IPv4 only for now */ 50 struct in_addr ldp_id; 51 uint16_t label_space; 52 } __packed; 53 54 55 uint get_pdu(const unsigned char *, struct ldp_pdu *); 56 int check_recv_pdu(const struct ldp_peer *, const struct ldp_pdu *, int); 57 58 59 #endif /* !_PDU_H_ */ 60