tlv.h revision 1.3
1 /* $NetBSD: tlv.h,v 1.3 2013/01/26 17:29:55 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 (at) 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 _TLV_H_ 33 #define _TLV_H_ 34 35 /* TLV messages */ 36 #define TLV_FEC 0x0100 37 #define TLV_ADDRESS_LIST 0x0101 38 #define TLV_HOP_COUNT 0x0103 39 #define TLV_PATH_VECTOR 0x0104 40 #define TLV_GENERIC_LABEL 0x0200 41 #define TLV_ATM_LABEL 0x0201 42 #define TLV_FR_LABEL 0x0202 43 #define TLV_STATUS 0x0300 44 #define TLV_EXTENDED_STATUS 0x0301 45 #define TLV_RETURNED_PDU 0x0302 46 #define TLV_RETURNED_MESSAGE 0x0303 47 #define TLV_COMMON_HELLO 0x0400 48 #define TLV_IPV4_TRANSPORT 0x0401 49 #define TLV_CONFIGURATION_SEQ 0x0402 50 #define TLV_IPV6_TRANSPORT 0x0403 51 #define TLV_COMMON_SESSION 0x0500 52 #define TLV_ATM_SESSION 0x0501 53 #define TLV_FR_SESSION 0x0502 54 #define TLV_LABEL_REQUEST 0x0600 55 56 /* Some common lengths in order to avoid writing them every time */ 57 #define TLV_TYPE_LENGTH (sizeof(uint16_t) + sizeof(uint16_t)) 58 #define MSGID_SIZE (sizeof(uint32_t)) 59 60 /* General TLV structure */ 61 struct tlv { 62 uint16_t type; 63 uint16_t length; 64 uint32_t messageid; 65 void *value; 66 struct ldp_pdu *pdu; 67 } __packed; 68 69 /* Common Hello TLV structure */ 70 struct common_hello_tlv { 71 uint16_t type; 72 uint16_t length; 73 uint16_t holdtime; 74 union { 75 /* XXX: Endianness ?! */ 76 uint8_t tr:2; 77 uint16_t res; 78 }; 79 } __packed; 80 81 /* Hello TLV structure */ 82 struct hello_tlv { 83 uint16_t type; 84 uint16_t length; 85 uint32_t messageid; 86 struct common_hello_tlv ch; 87 /* XXX: optional parameters */ 88 } __packed; 89 90 /* Transport address TLV */ 91 struct transport_address_tlv { 92 uint16_t type; 93 uint16_t length; 94 union { 95 struct in_addr ip4addr; 96 struct in6_addr ip6addr; 97 } address; 98 } __packed; 99 100 101 #define CS_LEN (sizeof(struct init_tlv) - TLV_TYPE_LENGTH - MSGID_SIZE - \ 102 sizeof(uint32_t)) 103 104 /* Initialization TLV structure */ 105 struct init_tlv { 106 uint16_t type; 107 uint16_t length; 108 uint32_t messageid; 109 /* 110 * Common Session Parameters 111 */ 112 uint16_t cs_type; 113 uint16_t cs_len; 114 uint16_t cs_version; 115 uint16_t cs_keepalive; 116 uint16_t cs_adpvlim; /* XXX */ 117 uint16_t cs_maxpdulen; 118 struct in_addr cs_peeraddress; 119 uint16_t cs_peeraddrspace; 120 } __packed; 121 122 /* Keepalive TLV */ 123 struct ka_tlv { /* Keepalive message */ 124 uint16_t type; 125 uint16_t length; 126 uint32_t messageid; 127 } __packed; 128 129 /* Notification TLV */ 130 struct notification_tlv { 131 uint16_t type; 132 uint16_t length; 133 uint32_t messageid; 134 uint16_t status; 135 uint16_t st_len; 136 uint32_t st_code; 137 uint32_t msg_id; 138 uint32_t msg_type; 139 } __packed; 140 141 /* Address LIST TLV for SEND */ 142 struct address_list_tlv { 143 uint16_t type; 144 uint16_t length; 145 uint32_t messageid; 146 uint16_t a_type; 147 uint16_t a_length; 148 uint16_t a_af; 149 struct in_addr a_address; 150 } __packed; 151 152 /* Real AL TLV used for RCV for now */ 153 struct al_tlv { 154 uint16_t type; 155 uint16_t length; 156 uint16_t af; 157 struct in_addr address; 158 } __packed; 159 160 struct address_tlv { 161 uint16_t type; 162 uint16_t length; 163 uint32_t messageid; 164 } __packed; 165 166 /* Label map TLV */ 167 struct label_map_tlv { 168 uint16_t type; 169 uint16_t length; 170 uint32_t messageid; 171 } __packed; 172 173 /* FEC TLV */ 174 struct fec_tlv { 175 uint16_t type; 176 uint16_t length; 177 } __packed; 178 179 struct prefix_tlv { 180 uint8_t type; 181 uint16_t af; 182 uint8_t prelen; 183 struct in_addr prefix; 184 } __packed; 185 186 struct host_tlv { 187 uint8_t type; 188 uint16_t af; 189 uint8_t length; 190 struct in_addr address; 191 } __packed; 192 193 struct label_tlv { 194 uint16_t type; 195 uint16_t length; 196 uint32_t label; 197 } __packed; 198 199 /* Label Request Message ID TLV */ 200 struct label_request_tlv { 201 uint16_t type; 202 uint16_t length; /* 4 */ 203 uint32_t messageid; 204 } __packed; 205 206 struct hello_tlv * get_hello_tlv(unsigned char *, uint); 207 void debug_tlv(struct tlv *); 208 209 #endif /* !_TLV_H_ */ 210
Indexes created Fri Sep 26 20:09:58 GMT 2025