102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/* packet-openthread.c
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* Simple dissector for OpenThread loopback interface
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*
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* Robert Cragie <robert.cragie@arm.com>
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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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/* Forward declarations */
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void proto_register_openthread(void);
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void proto_reg_handoff_openthread(void);
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static int proto_openthread = -1;
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static dissector_handle_t openthread_handle;
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static dissector_handle_t wpan_handle;
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static int hf_openthread_channel = -1;
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/* static int hf_openthread_psdu = -1; */
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static gint ett_openthread = -1;
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static int
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dissect_openthread(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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proto_item *proto_root;
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proto_tree *openthread_tree;
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tvbuff_t *sub_tvb;
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/* Create the protocol tree. */
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proto_root = proto_tree_add_item(tree, proto_openthread, tvb, 0, -1, ENC_NA);
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openthread_tree = proto_item_add_subtree(proto_root, ett_openthread);
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proto_tree_add_item(openthread_tree, hf_openthread_channel, tvb, 0, 1, ENC_NA);
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sub_tvb = tvb_new_subset_length(tvb, 1, tvb_reported_length_remaining(tvb, 3)); /* Note - truncate the last two "phoney" CRC bytes */
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call_dissector(wpan_handle, sub_tvb, pinfo, tree);
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return tvb_captured_length(tvb);
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}
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void
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proto_register_openthread(void)
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{
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static hf_register_info hf[] = {
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/* Generic TLV */
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{ &hf_openthread_channel,
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{ "Channel",
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"openthread.channel",
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FT_UINT8, BASE_DEC, NULL, 0x0,
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NULL,
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HFILL }
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},
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#if 0
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{ &hf_openthread_psdu,
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{ "PSDU",
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"openthread.psdu",
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FT_NONE, BASE_NONE, NULL, 0x0,
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NULL,
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HFILL }
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}
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#endif
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};
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static gint *ett[] = {
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&ett_openthread
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};
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proto_openthread = proto_register_protocol("OpenThread", "OpenThread", "openthread");
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proto_register_field_array(proto_openthread, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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openthread_handle = register_dissector("openthread", dissect_openthread, proto_openthread);
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}
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void
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proto_reg_handoff_openthread(void)
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{
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wpan_handle = find_dissector_add_dependency("wpan_nofcs", proto_openthread);
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dissector_add_for_decode_as("udp.port", openthread_handle);
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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: 4
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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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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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