forked from osmocom/wireshark
104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/* packet-mesh-header.c
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* Routines for Mesh Header dissection
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* Javier Cardona <javier@cozybit.com>
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* Copyright 2007, Marvell Semiconductors Inc.
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <epan/packet.h>
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void proto_register_mesh(void);
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/* Initialize the protocol and registered fields */
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static int proto_mesh = -1;
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static int hf_mesh_ttl = -1;
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static int hf_mesh_e2eseq = -1;
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/* Initialize the subtree pointers */
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static gint ett_mesh = -1;
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/* Code to actually dissect the packets */
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static int
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dissect_mesh(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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/* Set up structures needed to add the protocol subtree and manage it */
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proto_item *ti;
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proto_tree *mesh_tree;
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guint8 mesh_ttl;
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guint16 mesh_e2eseq;
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/* Make entries in Protocol column and Info column on summary display */
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "Mesh");
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if (tree) {
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ti = proto_tree_add_item(tree, proto_mesh, tvb, 0, 5, ENC_NA);
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mesh_tree = proto_item_add_subtree(ti, ett_mesh);
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/* add an item to the subtree, see section 1.6 for more information */
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mesh_ttl = tvb_get_guint8(tvb, 2);
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proto_tree_add_uint(mesh_tree, hf_mesh_ttl, tvb, 2, 1, mesh_ttl);
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mesh_e2eseq = tvb_get_ntohs(tvb, 3);
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proto_tree_add_uint(mesh_tree, hf_mesh_e2eseq, tvb, 3, 2, mesh_e2eseq);
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}
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/* Return the amount of data this dissector was able to dissect */
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return 5;
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}
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/* Register the protocol with Wireshark */
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/* this format is require because a script is used to build the C function
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that calls all the protocol registration.
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*/
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void
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proto_register_mesh(void)
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{
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/* Setup list of header fields See Section 1.6.1 for details*/
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static hf_register_info hf[] = {
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{ &hf_mesh_ttl,
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{ "Mesh TTL", "mesh.ttl", FT_UINT8, BASE_DEC,
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NULL, 0x0, NULL, HFILL }},
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{ &hf_mesh_e2eseq,
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{ "Mesh End-to-end Seq", "mesh.e2eseq", FT_UINT16, BASE_HEX,
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NULL, 0x0, NULL, HFILL }},
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};
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/* Setup protocol subtree array */
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static gint *ett[] = {
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&ett_mesh
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};
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/* Register the protocol name and description */
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proto_mesh = proto_register_protocol("Mesh Header", "Mesh", "mesh");
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/* Required function calls to register the header fields and subtrees used */
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proto_register_field_array(proto_mesh, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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register_dissector("mesh", dissect_mesh, proto_mesh);
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}
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/*
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* Editor modelines - https://www.wireshark.org/tools/modelines.html
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*
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* Local Variables:
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* c-basic-offset: 2
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=2 tabstop=8 expandtab:
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* :indentSize=2:tabSize=8:noTabs=true:
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*/
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