/* $OpenBSD: ldp.h,v 1.42 2017/03/04 00:21:48 renato Exp $ */ /* * Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org> * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org> * Copyright (c) 2004, 2005, 2008 Esben Norby <norby@openbsd.org> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* LDP protocol definitions */ #ifndef _LDP_H_ #define _LDP_H_ #include <sys/types.h> /* misc */ #define LDP_VERSION 1 #define LDP_PORT 646 #define LDP_MAX_LEN 4096 /* All Routers on this Subnet group multicast addresses */ #define AllRouters_v4 "224.0.0.2" #define AllRouters_v6 "ff02::2" #define LINK_DFLT_HOLDTIME 15 #define TARGETED_DFLT_HOLDTIME 45 #define MIN_HOLDTIME 3 #define MAX_HOLDTIME 0xffff #define INFINITE_HOLDTIME 0xffff #define DEFAULT_KEEPALIVE 180 #define MIN_KEEPALIVE 3 #define MAX_KEEPALIVE 0xffff #define KEEPALIVE_PER_PERIOD 3 #define INIT_FSM_TIMEOUT 15 #define DEFAULT_HELLO_INTERVAL 5 #define MIN_HELLO_INTERVAL 1 #define MAX_HELLO_INTERVAL 0xffff #define INIT_DELAY_TMR 15 #define MAX_DELAY_TMR 120 #define MIN_PWID_ID 1 #define MAX_PWID_ID 0xffffffff #define DEFAULT_L2VPN_MTU 1500 #define MIN_L2VPN_MTU 512 #define MAX_L2VPN_MTU 0xffff /* LDP message types */ #define MSG_TYPE_NOTIFICATION 0x0001 #define MSG_TYPE_HELLO 0x0100 #define MSG_TYPE_INIT 0x0200 #define MSG_TYPE_KEEPALIVE 0x0201 #define MSG_TYPE_CAPABILITY 0x0202 /* RFC 5561 */ #define MSG_TYPE_ADDR 0x0300 #define MSG_TYPE_ADDRWITHDRAW 0x0301 #define MSG_TYPE_LABELMAPPING 0x0400 #define MSG_TYPE_LABELREQUEST 0x0401 #define MSG_TYPE_LABELWITHDRAW 0x0402 #define MSG_TYPE_LABELRELEASE 0x0403 #define MSG_TYPE_LABELABORTREQ 0x0404 /* LDP TLV types */ #define TLV_TYPE_FEC 0x0100 #define TLV_TYPE_ADDRLIST 0x0101 #define TLV_TYPE_HOPCOUNT 0x0103 #define TLV_TYPE_PATHVECTOR 0x0104 #define TLV_TYPE_GENERICLABEL 0x0200 #define TLV_TYPE_ATMLABEL 0x0201 #define TLV_TYPE_FRLABEL 0x0202 #define TLV_TYPE_STATUS 0x0300 #define TLV_TYPE_EXTSTATUS 0x0301 #define TLV_TYPE_RETURNEDPDU 0x0302 #define TLV_TYPE_RETURNEDMSG 0x0303 #define TLV_TYPE_COMMONHELLO 0x0400 #define TLV_TYPE_IPV4TRANSADDR 0x0401 #define TLV_TYPE_CONFIG 0x0402 #define TLV_TYPE_IPV6TRANSADDR 0x0403 #define TLV_TYPE_COMMONSESSION 0x0500 #define TLV_TYPE_ATMSESSIONPAR 0x0501 #define TLV_TYPE_FRSESSION 0x0502 #define TLV_TYPE_LABELREQUEST 0x0600 /* RFC 4447 */ #define TLV_TYPE_MAC_LIST 0x8404 #define TLV_TYPE_PW_STATUS 0x896A #define TLV_TYPE_PW_IF_PARAM 0x096B #define TLV_TYPE_PW_GROUP_ID 0x096C /* RFC 5561 */ #define TLV_TYPE_RETURNED_TLVS 0x8304 #define TLV_TYPE_DYNAMIC_CAP 0x8506 /* RFC 5918 */ #define TLV_TYPE_TWCARD_CAP 0x850B /* RFC 5919 */ #define TLV_TYPE_UNOTIF_CAP 0x8603 /* RFC 7552 */ #define TLV_TYPE_DUALSTACK 0x8701 /* LDP header */ struct ldp_hdr { uint16_t version; uint16_t length; uint32_t lsr_id; uint16_t lspace_id; } __packed; #define LDP_HDR_SIZE 10 /* actual size of the LDP header */ #define LDP_HDR_PDU_LEN 6 /* minimum "PDU Length" */ #define LDP_HDR_DEAD_LEN 4 /* TLV record */ struct tlv { uint16_t type; uint16_t length; }; #define TLV_HDR_SIZE 4 struct ldp_msg { uint16_t type; uint16_t length; uint32_t id; /* Mandatory Parameters */ /* Optional Parameters */ } __packed; #define LDP_MSG_SIZE 8 /* minimum size of LDP message */ #define LDP_MSG_LEN 4 /* minimum "Message Length" */ #define LDP_MSG_DEAD_LEN 4 #define UNKNOWN_FLAG 0x8000 #define FORWARD_FLAG 0xc000 struct hello_prms_tlv { uint16_t type; uint16_t length; uint16_t holdtime; uint16_t flags; }; #define F_HELLO_TARGETED 0x8000 #define F_HELLO_REQ_TARG 0x4000 #define F_HELLO_GTSM 0x2000 struct hello_prms_opt4_tlv { uint16_t type; uint16_t length; uint32_t value; }; struct hello_prms_opt16_tlv { uint16_t type; uint16_t length; uint8_t value[16]; }; #define DUAL_STACK_LDPOV4 4 #define DUAL_STACK_LDPOV6 6 #define F_HELLO_TLV_RCVD_ADDR 0x01 #define F_HELLO_TLV_RCVD_CONF 0x02 #define F_HELLO_TLV_RCVD_DS 0x04 #define S_SUCCESS 0x00000000 #define S_BAD_LDP_ID 0x80000001 #define S_BAD_PROTO_VER 0x80000002 #define S_BAD_PDU_LEN 0x80000003 #define S_UNKNOWN_MSG 0x00000004 #define S_BAD_MSG_LEN 0x80000005 #define S_UNKNOWN_TLV 0x00000006 #define S_BAD_TLV_LEN 0x80000007 #define S_BAD_TLV_VAL 0x80000008 #define S_HOLDTIME_EXP 0x80000009 #define S_SHUTDOWN 0x8000000A #define S_LOOP_DETECTED 0x0000000B #define S_UNKNOWN_FEC 0x0000000C #define S_NO_ROUTE 0x0000000D #define S_NO_LABEL_RES 0x0000000E #define S_AVAILABLE 0x0000000F #define S_NO_HELLO 0x80000010 #define S_PARM_ADV_MODE 0x80000011 #define S_MAX_PDU_LEN 0x80000012 #define S_PARM_L_RANGE 0x80000013 #define S_KEEPALIVE_TMR 0x80000014 #define S_LAB_REQ_ABRT 0x00000015 #define S_MISS_MSG 0x00000016 #define S_UNSUP_ADDR 0x00000017 #define S_KEEPALIVE_BAD 0x80000018 #define S_INTERN_ERR 0x80000019 /* RFC 4447 */ #define S_ILLEGAL_CBIT 0x00000024 #define S_WRONG_CBIT 0x00000025 #define S_INCPT_BITRATE 0x00000026 #define S_CEP_MISCONF 0x00000027 #define S_PW_STATUS 0x00000028 #define S_UNASSIGN_TAI 0x00000029 #define S_MISCONF_ERR 0x0000002A #define S_WITHDRAW_MTHD 0x0000002B /* RFC 5561 */ #define S_UNSSUPORTDCAP 0x0000002E /* RFC 5919 */ #define S_ENDOFLIB 0x0000002F /* RFC 7552 */ #define S_TRANS_MISMTCH 0x80000032 #define S_DS_NONCMPLNCE 0x80000033 struct sess_prms_tlv { uint16_t type; uint16_t length; uint16_t proto_version; uint16_t keepalive_time; uint8_t reserved; uint8_t pvlim; uint16_t max_pdu_len; uint32_t lsr_id; uint16_t lspace_id; } __packed; #define SESS_PRMS_SIZE 18 #define SESS_PRMS_LEN 14 struct status_tlv { uint16_t type; uint16_t length; uint32_t status_code; uint32_t msg_id; uint16_t msg_type; } __packed; #define STATUS_SIZE 14 #define STATUS_TLV_LEN 10 #define STATUS_FATAL 0x80000000 struct capability_tlv { uint16_t type; uint16_t length; uint8_t reserved; }; #define STATE_BIT 0x80 #define F_CAP_TLV_RCVD_DYNAMIC 0x01 #define F_CAP_TLV_RCVD_TWCARD 0x02 #define F_CAP_TLV_RCVD_UNOTIF 0x04 #define CAP_TLV_DYNAMIC_SIZE 5 #define CAP_TLV_DYNAMIC_LEN 1 #define CAP_TLV_TWCARD_SIZE 5 #define CAP_TLV_TWCARD_LEN 1 #define CAP_TLV_UNOTIF_SIZE 5 #define CAP_TLV_UNOTIF_LEN 1 #define AF_IPV4 0x1 #define AF_IPV6 0x2 struct address_list_tlv { uint16_t type; uint16_t length; uint16_t family; /* address entries */ } __packed; #define ADDR_LIST_SIZE 6 #define FEC_ELM_WCARD_LEN 1 #define FEC_ELM_PREFIX_MIN_LEN 4 #define FEC_PWID_ELM_MIN_LEN 8 #define FEC_PWID_SIZE 4 #define FEC_ELM_TWCARD_MIN_LEN 3 #define MAP_TYPE_WILDCARD 0x01 #define MAP_TYPE_PREFIX 0x02 #define MAP_TYPE_TYPED_WCARD 0x05 #define MAP_TYPE_PWID 0x80 #define MAP_TYPE_GENPWID 0x81 #define CONTROL_WORD_FLAG 0x8000 #define PW_TYPE_ETHERNET_TAGGED 0x0004 #define PW_TYPE_ETHERNET 0x0005 #define PW_TYPE_WILDCARD 0x7FFF #define DEFAULT_PW_TYPE PW_TYPE_ETHERNET #define PW_TWCARD_RESERVED_BIT 0x8000 /* RFC 4447 Sub-TLV record */ struct subtlv { uint8_t type; uint8_t length; }; #define SUBTLV_HDR_SIZE 2 #define SUBTLV_IFMTU 0x01 #define SUBTLV_VLANID 0x06 #define FEC_SUBTLV_IFMTU_SIZE 4 #define FEC_SUBTLV_VLANID_SIZE 4 struct label_tlv { uint16_t type; uint16_t length; uint32_t label; }; #define LABEL_TLV_SIZE 8 #define LABEL_TLV_LEN 4 struct reqid_tlv { uint16_t type; uint16_t length; uint32_t reqid; }; #define REQID_TLV_SIZE 8 #define REQID_TLV_LEN 4 struct pw_status_tlv { uint16_t type; uint16_t length; uint32_t value; }; #define PW_STATUS_TLV_SIZE 8 #define PW_STATUS_TLV_LEN 4 #define PW_FORWARDING 0 #define PW_NOT_FORWARDING (1 << 0) #define PW_LOCAL_RX_FAULT (1 << 1) #define PW_LOCAL_TX_FAULT (1 << 2) #define PW_PSN_RX_FAULT (1 << 3) #define PW_PSN_TX_FAULT (1 << 4) #define NO_LABEL UINT32_MAX #endif /* !_LDP_H_ */
