207 lines
5.5 KiB
C
207 lines
5.5 KiB
C
/* $NetBSD: tlv.h,v 1.1 2010/12/08 07:20:15 kefren Exp $ */
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/*-
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* Copyright (c) 2010 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Mihai Chelaru <kefren@NetBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _TLV_H_
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#define _TLV_H_
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/* TLV messages */
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#define TLV_FEC 0x0100
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#define TLV_ADDRESS_LIST 0x0101
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#define TLV_HOP_COUNT 0x0103
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#define TLV_PATH_VECTOR 0x0104
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#define TLV_GENERIC_LABEL 0x0200
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#define TLV_ATM_LABEL 0x0201
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#define TLV_FR_LABEL 0x0202
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#define TLV_STATUS 0x0300
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#define TLV_EXTENDED_STATUS 0x0301
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#define TLV_RETURNED_PDU 0x0302
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#define TLV_RETURNED_MESSAGE 0x0303
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#define TLV_COMMON_HELLO 0x0400
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#define TLV_IPV4_TRANSPORT 0x0401
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#define TLV_CONFIGURATION_SEQ 0x0402
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#define TLV_IPV6_TRANSPORT 0x0403
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#define TLV_COMMON_SESSION 0x0500
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#define TLV_ATM_SESSION 0x0501
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#define TLV_FR_SESSION 0x0502
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#define TLV_LABEL_REQUEST 0x0600
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/* Some common lengths in order to avoid writing them every time */
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#define TLV_TYPE_LENGTH (sizeof(uint16_t) + sizeof(uint16_t))
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#define MSGID_SIZE (sizeof(uint32_t))
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/* General TLV structure */
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struct tlv {
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uint16_t type;
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uint16_t length;
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uint32_t messageid;
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void *value;
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struct ldp_pdu *pdu;
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} __packed;
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/* Common Hello TLV structure */
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struct common_hello_tlv {
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uint16_t type;
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uint16_t length;
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uint16_t holdtime;
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union {
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/* XXX: Endianness ?! */
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uint8_t tr:2;
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uint16_t res;
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};
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} __packed;
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/* Hello TLV structure */
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struct hello_tlv {
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uint16_t type;
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uint16_t length;
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uint32_t messageid;
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struct common_hello_tlv ch;
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/* XXX: optional parameters */
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} __packed;
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/* IPv4 Transport address TLV */
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struct transport_address_tlv {
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uint16_t type;
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uint16_t length;
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struct in_addr address;
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} __packed;
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#define CS_LEN (sizeof(struct init_tlv) - TLV_TYPE_LENGTH - MSGID_SIZE - \
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sizeof(uint32_t))
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/* Initialization TLV structure */
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struct init_tlv {
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uint16_t type;
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uint16_t length;
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uint32_t messageid;
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/*
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* Common Session Parameters
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*/
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uint16_t cs_type;
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uint16_t cs_len;
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uint16_t cs_version;
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uint16_t cs_keepalive;
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uint16_t cs_adpvlim; /* XXX */
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uint16_t cs_maxpdulen;
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struct in_addr cs_peeraddress;
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uint16_t cs_peeraddrspace;
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} __packed;
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/* Keepalive TLV */
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struct ka_tlv { /* Keepalive message */
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uint16_t type;
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uint16_t length;
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uint32_t messageid;
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} __packed;
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/* Notification TLV */
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struct notification_tlv {
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uint16_t type;
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uint16_t length;
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uint32_t messageid;
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uint16_t status;
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uint16_t st_len;
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uint32_t st_code;
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uint32_t msg_id;
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uint32_t msg_type;
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} __packed;
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/* Address LIST TLV for SEND */
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struct address_list_tlv {
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uint16_t type;
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uint16_t length;
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uint32_t messageid;
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uint16_t a_type;
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uint16_t a_length;
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uint16_t a_af;
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struct in_addr a_address;
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} __packed;
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/* Real AL TLV used for RCV for now */
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struct al_tlv {
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uint16_t type;
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uint16_t length;
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uint16_t af;
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struct in_addr address;
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} __packed;
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struct address_tlv {
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uint16_t type;
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uint16_t length;
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uint32_t messageid;
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} __packed;
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/* Label map TLV */
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struct label_map_tlv {
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uint16_t type;
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uint16_t length;
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uint32_t messageid;
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} __packed;
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/* FEC TLV */
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struct fec_tlv {
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uint16_t type;
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uint16_t length;
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} __packed;
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struct prefix_tlv {
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uint8_t type;
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uint16_t af;
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uint8_t prelen;
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struct in_addr prefix;
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} __packed;
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struct host_tlv {
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uint8_t type;
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uint16_t af;
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uint8_t length;
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struct in_addr address;
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} __packed;
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struct label_tlv {
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uint16_t type;
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uint16_t length;
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uint32_t label;
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} __packed;
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/* Label Request Message ID TLV */
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struct label_request_tlv {
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uint16_t type;
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uint16_t length; /* 4 */
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uint32_t messageid;
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} __packed;
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struct hello_tlv * get_hello_tlv(unsigned char *, uint);
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void debug_tlv(struct tlv *);
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#endif /* !_TLV_H_ */
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