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packet-isis-clv.h
1 /* packet-isis-clv.h
2 * Declares for common clv decoding functions.
3 *
4 * Stuart Stanley <stuarts@mxmail.net>
5 *
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
9 *
10 * SPDX-License-Identifier: GPL-2.0-or-later
11 */
12
13 #ifndef _PACKET_ISIS_CLV_H
14 #define _PACKET_ISIS_CLV_H
15
16 /*
17 * A CLV is a tuple of a type, length and a value and is normally used for
18 * encoding information in all sorts of places.
19 * IS-IS uses a uniform CLV code space that is shared across
20 * all PDU Types.
21 *
22 * list taken from rfc3359 plus some memory from veterans ;-)
23 *
24 * http://www.iana.org/assignments/isis-tlv-codepoints/isis-tlv-codepoints.xhtml#tlv-codepoints
25 */
26
27 #define ISIS_CLV_AREA_ADDRESS 1 /* iso10589 */
28 #define ISIS_CLV_IS_REACH 2 /* iso10589 */
29 #define ISIS_CLV_ES_NEIGHBORS 3 /* iso10589 */
30 #define ISIS_CLV_PARTITION_DIS 4 /* iso10589 */
31 #define ISIS_CLV_PREFIX_NEIGHBORS 5 /* iso10589 */
32 #define ISIS_CLV_IS_NEIGHBORS 6 /* iso10589 */
33 #define ISIS_CLV_INSTANCE_IDENTIFIER 7 /* rfc6822 */
34 #define ISIS_CLV_PADDING 8 /* iso10589 */
35 #define ISIS_CLV_LSP_ENTRIES 9 /* iso10589 */
36 #define ISIS_CLV_AUTHENTICATION 10 /* iso10589, rfc3567 */
37 #define ISIS_CLV_CHECKSUM 12 /* rfc3358 */
38 #define ISIS_CLV_LSP_BUFFERSIZE 14 /* iso10589 rev2 */
39 #define ISIS_CLV_EXTD_IS_REACH 22 /* draft-ietf-isis-traffic-05 */
40 #define ISIS_CLV_IS_ALIAS_ID 24 /* draft-ietf-isis-ext-lsp-frags-02 */
41 #define ISIS_CLV_INT_IP_REACH 128 /* rfc1195, rfc2966 */
42 #define ISIS_CLV_PROTOCOLS_SUPPORTED 129 /* rfc1195 */
43 #define ISIS_CLV_EXT_IP_REACH 130 /* rfc1195, rfc2966 */
44 #define ISIS_CLV_IDRP_INFO 131 /* rfc1195 */
45 #define ISIS_CLV_IP_ADDR 132 /* rfc1195 */
46 #define ISIS_CLV_IP_AUTHENTICATION 133 /* rfc1195, depreciated */
47 #define ISIS_CLV_TE_ROUTER_ID 134 /* draft-ietf-isis-traffic-05 */
48 #define ISIS_CLV_EXTD_IP_REACH 135 /* draft-ietf-isis-traffic-05 */
49 #define ISIS_CLV_HOSTNAME 137 /* rfc2763 */
50 #define ISIS_CLV_SHARED_RISK_GROUP 138 /* rfc5307 */
51 #define ISIS_GRP_ADDR 142 /* rfc7176 */
52 #define ISIS_CLV_MT_PORT_CAP 143 /* rfc6165, rfc7176 */
53 #define ISIS_CLV_MT_CAP 144 /* rfc6329, rfc7176 */
54 #define ISIS_CLV_TRILL_NEIGHBOR 145 /* rfc7176 */
55 #define ISIS_CLV_SID_LABEL_BINDING 149 /* draft-previdi-isis-segment-routing-extensions-05 */
56 #define ISIS_CLV_RESTART 211 /* draft-ietf-isis-restart-01 */
57 #define ISIS_CLV_MT_IS_REACH 222 /* draft-ietf-isis-wg-multi-topology-05 */
58 #define ISIS_CLV_MT_SUPPORTED 229 /* draft-ietf-isis-wg-multi-topology-05 */
59 #define ISIS_CLV_IP6_ADDR 232 /* draft-ietf-isis-ipv6-02 */
60 #define ISIS_CLV_MT_IP_REACH 235 /* draft-ietf-isis-wg-multi-topology-05 */
61 #define ISIS_CLV_IP6_REACH 236 /* draft-ietf-isis-ipv6-02 */
62 #define ISIS_CLV_MT_IP6_REACH 237 /* draft-ietf-isis-wg-multi-topology-05 */
63 #define ISIS_CLV_PTP_ADJ_STATE 240 /* rfc3373 */
64 #define ISIS_CLV_IIH_SEQNR 241 /* draft-shen-isis-iih-sequence-00 */
65 #define ISIS_CLV_RT_CAPABLE 242 /* rfc4971, rfc7176 */
66 #define ISIS_CLV_VENDOR_PRIVATE 250 /* draft-ietf-isis-proprietary-tlv-00 */
67
68 /*
69 * Our sub-packet dismantle structure for CLV's
70 */
71 typedef struct {
72 int optcode; /* code for option */
73 const char *tree_text; /* text for fold out */
74 gint *tree_id; /* id for add_item */
75 void (*dissect)(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree,
76 int offset, int id_length, int length);
77 } isis_clv_handle_t;
78
79 /*
80 * Published API functions. NOTE, this are "local" API functions and
81 * are only valid from with isis decodes.
82 */
83 extern void isis_dissect_clvs(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset,
84 const isis_clv_handle_t *opts, expert_field* expert_short_len, int len, int id_length,
85 int unknown_tree_id, int tree_type, int tree_length, expert_field ei_unknown);
86
87 extern void isis_dissect_nlpid_clv(tvbuff_t *tvb, proto_tree *tree,
88 int hf_nlpid, int offset, int length);
89 extern void isis_dissect_te_router_id_clv(proto_tree *tree, packet_info* pinfo, tvbuff_t *tvb, expert_field* expert,
90 int offset, int length, int tree_id);
91 extern void isis_dissect_ipv6_int_clv(proto_tree *tree, packet_info* pinfo, tvbuff_t *tvb, expert_field* expert,
92 int offset, int length, int tree_id);
93 extern void isis_dissect_ip_int_clv(proto_tree *tree, packet_info* pinfo, tvbuff_t *tvb, expert_field* expert,
94 int offset, int length, int tree_id);
95 extern void isis_dissect_mt_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree,
96 int offset, int length, int tree_id, expert_field* mtid_expert);
97 extern void isis_dissect_hostname_clv(tvbuff_t *tvb, proto_tree *tree,
98 int offset, int length, int tree_id);
99 extern void isis_dissect_authentication_clv(proto_tree *tree, packet_info* pinfo, tvbuff_t *tvb,
100 int hf_auth_bytes, int hf_key_id, expert_field* auth_expert, int offset, int length);
101 extern void isis_dissect_area_address_clv(proto_tree *tree, packet_info* pinfo, tvbuff_t *tvb,
102 expert_field* expert, int hf_area, int offset, int length);
103 extern void isis_dissect_instance_identifier_clv(proto_tree *tree, packet_info* pinfo, tvbuff_t *tvb,
104 expert_field* expert, int hf_iid, int hf_supported_itid, int offset, int length);
105
106 extern void isis_dissect_metric(tvbuff_t *tvb, proto_tree *tree, int offset,
107 guint8 value, char *pstr, int force_supported);
108
109 #endif /* _PACKET_ISIS_CLV_H */
110
111 /*
112 * Editor modelines - http://www.wireshark.org/tools/modelines.html
113 *
114 * Local variables:
115 * c-basic-offset: 4
116 * tab-width: 8
117 * indent-tabs-mode: nil
118 * End:
119 *
120 * vi: set shiftwidth=4 tabstop=8 expandtab:
121 * :indentSize=4:tabSize=8:noTabs=true:
122 */
_packet_info
Definition: packet_info.h:44
tvbuff
Definition: tvbuff-int.h:35
isis_clv_handle_t
Definition: packet-isis-clv.h:71
expert_field
Definition: expert.h:37
_proto_node
Definition: proto.h:759