ldp.h revision 1.42
1/* $OpenBSD: ldp.h,v 1.42 2017/03/04 00:21:48 renato Exp $ */ 2 3/* 4 * Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org> 5 * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org> 6 * Copyright (c) 2004, 2005, 2008 Esben Norby <norby@openbsd.org> 7 * 8 * Permission to use, copy, modify, and distribute this software for any 9 * purpose with or without fee is hereby granted, provided that the above 10 * copyright notice and this permission notice appear in all copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 19 */ 20 21/* LDP protocol definitions */ 22 23#ifndef _LDP_H_ 24#define _LDP_H_ 25 26#include <sys/types.h> 27 28/* misc */ 29#define LDP_VERSION 1 30#define LDP_PORT 646 31#define LDP_MAX_LEN 4096 32 33/* All Routers on this Subnet group multicast addresses */ 34#define AllRouters_v4 "224.0.0.2" 35#define AllRouters_v6 "ff02::2" 36 37#define LINK_DFLT_HOLDTIME 15 38#define TARGETED_DFLT_HOLDTIME 45 39#define MIN_HOLDTIME 3 40#define MAX_HOLDTIME 0xffff 41#define INFINITE_HOLDTIME 0xffff 42 43#define DEFAULT_KEEPALIVE 180 44#define MIN_KEEPALIVE 3 45#define MAX_KEEPALIVE 0xffff 46#define KEEPALIVE_PER_PERIOD 3 47#define INIT_FSM_TIMEOUT 15 48 49#define DEFAULT_HELLO_INTERVAL 5 50#define MIN_HELLO_INTERVAL 1 51#define MAX_HELLO_INTERVAL 0xffff 52 53#define INIT_DELAY_TMR 15 54#define MAX_DELAY_TMR 120 55 56#define MIN_PWID_ID 1 57#define MAX_PWID_ID 0xffffffff 58 59#define DEFAULT_L2VPN_MTU 1500 60#define MIN_L2VPN_MTU 512 61#define MAX_L2VPN_MTU 0xffff 62 63/* LDP message types */ 64#define MSG_TYPE_NOTIFICATION 0x0001 65#define MSG_TYPE_HELLO 0x0100 66#define MSG_TYPE_INIT 0x0200 67#define MSG_TYPE_KEEPALIVE 0x0201 68#define MSG_TYPE_CAPABILITY 0x0202 /* RFC 5561 */ 69#define MSG_TYPE_ADDR 0x0300 70#define MSG_TYPE_ADDRWITHDRAW 0x0301 71#define MSG_TYPE_LABELMAPPING 0x0400 72#define MSG_TYPE_LABELREQUEST 0x0401 73#define MSG_TYPE_LABELWITHDRAW 0x0402 74#define MSG_TYPE_LABELRELEASE 0x0403 75#define MSG_TYPE_LABELABORTREQ 0x0404 76 77/* LDP TLV types */ 78#define TLV_TYPE_FEC 0x0100 79#define TLV_TYPE_ADDRLIST 0x0101 80#define TLV_TYPE_HOPCOUNT 0x0103 81#define TLV_TYPE_PATHVECTOR 0x0104 82#define TLV_TYPE_GENERICLABEL 0x0200 83#define TLV_TYPE_ATMLABEL 0x0201 84#define TLV_TYPE_FRLABEL 0x0202 85#define TLV_TYPE_STATUS 0x0300 86#define TLV_TYPE_EXTSTATUS 0x0301 87#define TLV_TYPE_RETURNEDPDU 0x0302 88#define TLV_TYPE_RETURNEDMSG 0x0303 89#define TLV_TYPE_COMMONHELLO 0x0400 90#define TLV_TYPE_IPV4TRANSADDR 0x0401 91#define TLV_TYPE_CONFIG 0x0402 92#define TLV_TYPE_IPV6TRANSADDR 0x0403 93#define TLV_TYPE_COMMONSESSION 0x0500 94#define TLV_TYPE_ATMSESSIONPAR 0x0501 95#define TLV_TYPE_FRSESSION 0x0502 96#define TLV_TYPE_LABELREQUEST 0x0600 97/* RFC 4447 */ 98#define TLV_TYPE_MAC_LIST 0x8404 99#define TLV_TYPE_PW_STATUS 0x896A 100#define TLV_TYPE_PW_IF_PARAM 0x096B 101#define TLV_TYPE_PW_GROUP_ID 0x096C 102/* RFC 5561 */ 103#define TLV_TYPE_RETURNED_TLVS 0x8304 104#define TLV_TYPE_DYNAMIC_CAP 0x8506 105/* RFC 5918 */ 106#define TLV_TYPE_TWCARD_CAP 0x850B 107/* RFC 5919 */ 108#define TLV_TYPE_UNOTIF_CAP 0x8603 109/* RFC 7552 */ 110#define TLV_TYPE_DUALSTACK 0x8701 111 112/* LDP header */ 113struct ldp_hdr { 114 uint16_t version; 115 uint16_t length; 116 uint32_t lsr_id; 117 uint16_t lspace_id; 118} __packed; 119 120#define LDP_HDR_SIZE 10 /* actual size of the LDP header */ 121#define LDP_HDR_PDU_LEN 6 /* minimum "PDU Length" */ 122#define LDP_HDR_DEAD_LEN 4 123 124/* TLV record */ 125struct tlv { 126 uint16_t type; 127 uint16_t length; 128}; 129#define TLV_HDR_SIZE 4 130 131struct ldp_msg { 132 uint16_t type; 133 uint16_t length; 134 uint32_t id; 135 /* Mandatory Parameters */ 136 /* Optional Parameters */ 137} __packed; 138 139#define LDP_MSG_SIZE 8 /* minimum size of LDP message */ 140#define LDP_MSG_LEN 4 /* minimum "Message Length" */ 141#define LDP_MSG_DEAD_LEN 4 142 143#define UNKNOWN_FLAG 0x8000 144#define FORWARD_FLAG 0xc000 145 146struct hello_prms_tlv { 147 uint16_t type; 148 uint16_t length; 149 uint16_t holdtime; 150 uint16_t flags; 151}; 152#define F_HELLO_TARGETED 0x8000 153#define F_HELLO_REQ_TARG 0x4000 154#define F_HELLO_GTSM 0x2000 155 156struct hello_prms_opt4_tlv { 157 uint16_t type; 158 uint16_t length; 159 uint32_t value; 160}; 161 162struct hello_prms_opt16_tlv { 163 uint16_t type; 164 uint16_t length; 165 uint8_t value[16]; 166}; 167 168#define DUAL_STACK_LDPOV4 4 169#define DUAL_STACK_LDPOV6 6 170 171#define F_HELLO_TLV_RCVD_ADDR 0x01 172#define F_HELLO_TLV_RCVD_CONF 0x02 173#define F_HELLO_TLV_RCVD_DS 0x04 174 175#define S_SUCCESS 0x00000000 176#define S_BAD_LDP_ID 0x80000001 177#define S_BAD_PROTO_VER 0x80000002 178#define S_BAD_PDU_LEN 0x80000003 179#define S_UNKNOWN_MSG 0x00000004 180#define S_BAD_MSG_LEN 0x80000005 181#define S_UNKNOWN_TLV 0x00000006 182#define S_BAD_TLV_LEN 0x80000007 183#define S_BAD_TLV_VAL 0x80000008 184#define S_HOLDTIME_EXP 0x80000009 185#define S_SHUTDOWN 0x8000000A 186#define S_LOOP_DETECTED 0x0000000B 187#define S_UNKNOWN_FEC 0x0000000C 188#define S_NO_ROUTE 0x0000000D 189#define S_NO_LABEL_RES 0x0000000E 190#define S_AVAILABLE 0x0000000F 191#define S_NO_HELLO 0x80000010 192#define S_PARM_ADV_MODE 0x80000011 193#define S_MAX_PDU_LEN 0x80000012 194#define S_PARM_L_RANGE 0x80000013 195#define S_KEEPALIVE_TMR 0x80000014 196#define S_LAB_REQ_ABRT 0x00000015 197#define S_MISS_MSG 0x00000016 198#define S_UNSUP_ADDR 0x00000017 199#define S_KEEPALIVE_BAD 0x80000018 200#define S_INTERN_ERR 0x80000019 201/* RFC 4447 */ 202#define S_ILLEGAL_CBIT 0x00000024 203#define S_WRONG_CBIT 0x00000025 204#define S_INCPT_BITRATE 0x00000026 205#define S_CEP_MISCONF 0x00000027 206#define S_PW_STATUS 0x00000028 207#define S_UNASSIGN_TAI 0x00000029 208#define S_MISCONF_ERR 0x0000002A 209#define S_WITHDRAW_MTHD 0x0000002B 210/* RFC 5561 */ 211#define S_UNSSUPORTDCAP 0x0000002E 212/* RFC 5919 */ 213#define S_ENDOFLIB 0x0000002F 214/* RFC 7552 */ 215#define S_TRANS_MISMTCH 0x80000032 216#define S_DS_NONCMPLNCE 0x80000033 217 218struct sess_prms_tlv { 219 uint16_t type; 220 uint16_t length; 221 uint16_t proto_version; 222 uint16_t keepalive_time; 223 uint8_t reserved; 224 uint8_t pvlim; 225 uint16_t max_pdu_len; 226 uint32_t lsr_id; 227 uint16_t lspace_id; 228} __packed; 229 230#define SESS_PRMS_SIZE 18 231#define SESS_PRMS_LEN 14 232 233struct status_tlv { 234 uint16_t type; 235 uint16_t length; 236 uint32_t status_code; 237 uint32_t msg_id; 238 uint16_t msg_type; 239} __packed; 240 241#define STATUS_SIZE 14 242#define STATUS_TLV_LEN 10 243#define STATUS_FATAL 0x80000000 244 245struct capability_tlv { 246 uint16_t type; 247 uint16_t length; 248 uint8_t reserved; 249}; 250#define STATE_BIT 0x80 251 252#define F_CAP_TLV_RCVD_DYNAMIC 0x01 253#define F_CAP_TLV_RCVD_TWCARD 0x02 254#define F_CAP_TLV_RCVD_UNOTIF 0x04 255 256#define CAP_TLV_DYNAMIC_SIZE 5 257#define CAP_TLV_DYNAMIC_LEN 1 258 259#define CAP_TLV_TWCARD_SIZE 5 260#define CAP_TLV_TWCARD_LEN 1 261 262#define CAP_TLV_UNOTIF_SIZE 5 263#define CAP_TLV_UNOTIF_LEN 1 264 265#define AF_IPV4 0x1 266#define AF_IPV6 0x2 267 268struct address_list_tlv { 269 uint16_t type; 270 uint16_t length; 271 uint16_t family; 272 /* address entries */ 273} __packed; 274 275#define ADDR_LIST_SIZE 6 276 277#define FEC_ELM_WCARD_LEN 1 278#define FEC_ELM_PREFIX_MIN_LEN 4 279#define FEC_PWID_ELM_MIN_LEN 8 280#define FEC_PWID_SIZE 4 281#define FEC_ELM_TWCARD_MIN_LEN 3 282 283#define MAP_TYPE_WILDCARD 0x01 284#define MAP_TYPE_PREFIX 0x02 285#define MAP_TYPE_TYPED_WCARD 0x05 286#define MAP_TYPE_PWID 0x80 287#define MAP_TYPE_GENPWID 0x81 288 289#define CONTROL_WORD_FLAG 0x8000 290#define PW_TYPE_ETHERNET_TAGGED 0x0004 291#define PW_TYPE_ETHERNET 0x0005 292#define PW_TYPE_WILDCARD 0x7FFF 293#define DEFAULT_PW_TYPE PW_TYPE_ETHERNET 294 295#define PW_TWCARD_RESERVED_BIT 0x8000 296 297/* RFC 4447 Sub-TLV record */ 298struct subtlv { 299 uint8_t type; 300 uint8_t length; 301}; 302#define SUBTLV_HDR_SIZE 2 303 304#define SUBTLV_IFMTU 0x01 305#define SUBTLV_VLANID 0x06 306 307#define FEC_SUBTLV_IFMTU_SIZE 4 308#define FEC_SUBTLV_VLANID_SIZE 4 309 310struct label_tlv { 311 uint16_t type; 312 uint16_t length; 313 uint32_t label; 314}; 315#define LABEL_TLV_SIZE 8 316#define LABEL_TLV_LEN 4 317 318struct reqid_tlv { 319 uint16_t type; 320 uint16_t length; 321 uint32_t reqid; 322}; 323#define REQID_TLV_SIZE 8 324#define REQID_TLV_LEN 4 325 326struct pw_status_tlv { 327 uint16_t type; 328 uint16_t length; 329 uint32_t value; 330}; 331#define PW_STATUS_TLV_SIZE 8 332#define PW_STATUS_TLV_LEN 4 333 334#define PW_FORWARDING 0 335#define PW_NOT_FORWARDING (1 << 0) 336#define PW_LOCAL_RX_FAULT (1 << 1) 337#define PW_LOCAL_TX_FAULT (1 << 2) 338#define PW_PSN_RX_FAULT (1 << 3) 339#define PW_PSN_TX_FAULT (1 << 4) 340 341#define NO_LABEL UINT32_MAX 342 343#endif /* !_LDP_H_ */ 344