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/* packet-isis-clv.h
* Declares for common clv decoding functions.
*
* Stuart Stanley <stuarts@mxmail.net>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef _PACKET_ISIS_CLV_H
#define _PACKET_ISIS_CLV_H
/*
* A CLV is a tuple of a type, length and a value and is normally used for
* encoding information in all sorts of places.
* IS-IS uses a uniform CLV code space that is shared across
* all PDU Types.
*
* list taken from rfc3359 plus some memory from veterans ;-)
*
* http://www.iana.org/assignments/isis-tlv-codepoints/isis-tlv-codepoints.xhtml#tlv-codepoints
*/
#define ISIS_CLV_AREA_ADDRESS 1 /* iso10589 */
#define ISIS_CLV_IS_REACH 2 /* iso10589 */
#define ISIS_CLV_ES_NEIGHBORS 3 /* iso10589 */
#define ISIS_CLV_PARTITION_DIS 4 /* iso10589 */
#define ISIS_CLV_PREFIX_NEIGHBORS 5 /* iso10589 */
#define ISIS_CLV_IS_NEIGHBORS 6 /* iso10589 */
#define ISIS_CLV_INSTANCE_IDENTIFIER 7 /* rfc6822 */
#define ISIS_CLV_PADDING 8 /* iso10589 */
#define ISIS_CLV_LSP_ENTRIES 9 /* iso10589 */
#define ISIS_CLV_AUTHENTICATION 10 /* iso10589, rfc3567 */
#define ISIS_CLV_CHECKSUM 12 /* rfc3358 */
#define ISIS_CLV_PURGE_ORIG_ID 13 /* rfc6232 */
#define ISIS_CLV_LSP_BUFFERSIZE 14 /* iso10589 rev2 */
#define ISIS_CLV_REVERSE_METRIC 16 /* rfc8500 */
#define ISIS_CLV_EXTD_IS_REACH 22 /* draft-ietf-isis-traffic-05 */
#define ISIS_CLV_IS_ALIAS_ID 24 /* draft-ietf-isis-ext-lsp-frags-02 */
#define ISIS_CLV_SRV6_LOCATOR 27 /* rfc9352 */
#define ISIS_CLV_INT_IP_REACH 128 /* rfc1195, rfc2966 */
#define ISIS_CLV_PROTOCOLS_SUPPORTED 129 /* rfc1195 */
#define ISIS_CLV_EXT_IP_REACH 130 /* rfc1195, rfc2966 */
#define ISIS_CLV_IDRP_INFO 131 /* rfc1195 */
#define ISIS_CLV_IP_ADDR 132 /* rfc1195 */
#define ISIS_CLV_IP_AUTHENTICATION 133 /* rfc1195, deprecated in rfc3787 */
#define ISIS_CLV_TE_ROUTER_ID 134 /* draft-ietf-isis-traffic-05 */
#define ISIS_CLV_EXTD_IP_REACH 135 /* draft-ietf-isis-traffic-05 */
#define ISIS_CLV_HOSTNAME 137 /* rfc2763 */
#define ISIS_CLV_SHARED_RISK_GROUP 138 /* rfc5307 */
#define ISIS_CLV_IPV6_SRLG_TLV 139 /* rfc6119 */
#define ISIS_CLV_IPV6_TE_ROUTER_ID 140 /* rfc6119 */
#define ISIS_GRP_ADDR 142 /* rfc7176 */
#define ISIS_CLV_MT_PORT_CAP 143 /* rfc6165, rfc7176 */
#define ISIS_CLV_MT_CAP 144 /* rfc6329, rfc7176 */
#define ISIS_CLV_TRILL_NEIGHBOR 145 /* rfc7176 */
#define ISIS_CLV_MAC_RI 147 /* rfc6165: MAC Reachability */
#define ISIS_CLV_BFD_ENABLED 148 /* rfc6213 */
#define ISIS_CLV_SID_LABEL_BINDING 149 /* draft-previdi-isis-segment-routing-extensions-05 */
#define ISIS_CLV_AVAYA_IPVPN 184 /* Avaya/Extremenetworks proprietary: Reverse engineered */
#define ISIS_CLV_AVAYA_IPVPN_MC 185 /* Avaya/Extremenetworks proprietary: Reverse engineered */
#define ISIS_CLV_AVAYA_IP_GRT_MC 186 /* Avaya/Extremenetworks proprietary: Reverse engineered */
#define ISIS_CLV_RESTART 211 /* draft-ietf-isis-restart-01 */
#define ISIS_CLV_MT_IS_REACH 222 /* draft-ietf-isis-wg-multi-topology-05 */
#define ISIS_CLV_MT_SUPPORTED 229 /* draft-ietf-isis-wg-multi-topology-05 */
#define ISIS_CLV_IP6_ADDR 232 /* draft-ietf-isis-ipv6-02 */
#define ISIS_CLV_IPV6_GBL_INT_ADDR 233 /* rfc6119 */
#define ISIS_CLV_MT_IP_REACH 235 /* draft-ietf-isis-wg-multi-topology-05 */
#define ISIS_CLV_IP6_REACH 236 /* draft-ietf-isis-ipv6-02 */
#define ISIS_CLV_MT_IP6_REACH 237 /* draft-ietf-isis-wg-multi-topology-05 */
#define ISIS_CLV_PTP_ADJ_STATE 240 /* rfc3373 */
#define ISIS_CLV_IIH_SEQNR 241 /* draft-shen-isis-iih-sequence-00 */
#define ISIS_CLV_RT_CAPABLE 242 /* rfc4971, rfc7176 */
#define ISIS_CLV_VENDOR_PRIVATE 250 /* draft-ietf-isis-proprietary-tlv-00 */
/*
* Our sub-packet dismantle structure for CLV's
*/
typedef struct {
int optcode; /* code for option */
const char *tree_text; /* text for fold out */
gint *tree_id; /* id for add_item */
void (*dissect)(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree,
int offset, isis_data_t *isis, int length);
} isis_clv_handle_t;
/*
* Published API functions. NOTE, this are "local" API functions and
* are only valid from with isis decodes.
*/
extern void isis_dissect_clvs(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset,
const isis_clv_handle_t *opts, expert_field *expert_short_len, isis_data_t *isis,
int unknown_tree_id, int tree_type, int tree_length, expert_field *ei_unknown);
extern void isis_dissect_nlpid_clv(tvbuff_t *tvb, proto_tree *tree, gint ett_nlpid,
int hf_nlpid, int offset, int length);
extern void isis_dissect_te_router_id_clv(proto_tree *tree, packet_info* pinfo, tvbuff_t *tvb, expert_field* expert,
int offset, int length, int tree_id);
extern void isis_dissect_ipv6_int_clv(proto_tree *tree, packet_info* pinfo, tvbuff_t *tvb, expert_field* expert,
int offset, int length, int tree_id);
extern void isis_dissect_ip_int_clv(proto_tree *tree, packet_info* pinfo, tvbuff_t *tvb, expert_field* expert,
int offset, int length, int tree_id);
extern void isis_dissect_mt_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree,
int offset, int length, int tree_id, expert_field* mtid_expert);
extern void isis_dissect_hostname_clv(tvbuff_t *tvb, proto_tree *tree,
int offset, int length, int tree_id);
extern void isis_dissect_authentication_clv(proto_tree *tree, packet_info* pinfo, tvbuff_t *tvb,
int hf_auth_bytes, int hf_key_id, expert_field* auth_expert, int offset, int length);
extern void isis_dissect_area_address_clv(proto_tree *tree, packet_info* pinfo, tvbuff_t *tvb,
expert_field* expert, int hf_area, int offset, int length);
extern void isis_dissect_instance_identifier_clv(proto_tree *tree, packet_info* pinfo, tvbuff_t *tvb,
expert_field* expert, int hf_iid, int hf_supported_itid, int offset, int length);
extern void isis_dissect_metric(tvbuff_t *tvb, proto_tree *tree, int offset,
guint8 value, char *pstr, int force_supported);
#endif /* _PACKET_ISIS_CLV_H */
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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