138 lines
3.4 KiB
C
138 lines
3.4 KiB
C
/* packet-flexnet.c
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*
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* Routines for Amateur Packet Radio protocol dissection
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* Copyright 2005,2006,2007,2008,2009,2010,2012 R.W. Stearn <richard@rns-stearn.demon.co.uk>
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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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/*
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* Information on the protocol drawn from:
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*
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* Inspiration on how to build the dissector drawn from
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* packet-sdlc.c
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* packet-x25.c
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* packet-lapb.c
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* paket-gprs-llc.c
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* xdlc.c
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* with the base file built from README.developers.
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/ax25_pids.h>
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void proto_register_flexnet(void);
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void proto_reg_handoff_flexnet(void);
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#define FLEXNET_ADRLEN 15
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#define FLEXNET_CTLLEN 15
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#define FLEXNET_HDRLEN (FLEXNET_ADRLEN + FLEXNET_ADRLEN + FLEXNET_CTLLEN)
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static int proto_flexnet = -1;
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static int hf_flexnet_dst = -1;
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static int hf_flexnet_src = -1;
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static int hf_flexnet_ctl = -1;
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static gint ett_flexnet = -1;
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static gint ett_flexnet_ctl = -1;
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static int
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dissect_flexnet(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data _U_)
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{
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tvbuff_t *next_tvb;
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col_set_str( pinfo->cinfo, COL_PROTOCOL, "Flexnet");
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col_clear( pinfo->cinfo, COL_INFO );
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if ( parent_tree )
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{
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proto_item *ti;
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proto_tree *flexnet_tree;
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int offset;
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/* create display subtree for the protocol */
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ti = proto_tree_add_protocol_format( parent_tree, proto_flexnet, tvb, 0, FLEXNET_HDRLEN, "FLEXNET" );
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flexnet_tree = proto_item_add_subtree( ti, ett_flexnet );
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offset = 0;
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proto_tree_add_item( flexnet_tree, hf_flexnet_dst, tvb, offset, FLEXNET_ADRLEN, ENC_NA );
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offset +=FLEXNET_ADRLEN;
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proto_tree_add_item( flexnet_tree, hf_flexnet_src, tvb, offset, FLEXNET_ADRLEN, ENC_NA );
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offset +=FLEXNET_ADRLEN;
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proto_tree_add_item( flexnet_tree, hf_flexnet_ctl, tvb, offset, FLEXNET_CTLLEN, ENC_NA );
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/* offset +=FLEXNET_CTLLEN; */
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}
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/* Call sub-dissectors here */
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next_tvb = tvb_new_subset_remaining(tvb, FLEXNET_HDRLEN);
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call_data_dissector(next_tvb, pinfo, parent_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_flexnet(void)
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{
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/* Setup list of header fields */
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static hf_register_info hf[] = {
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{ &hf_flexnet_dst,
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{ "Destination", "flexnet.dst",
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FT_BYTES, BASE_NONE, NULL, 0x0,
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"Destination address", HFILL }
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},
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{ &hf_flexnet_src,
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{ "Source", "flexnet.src",
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FT_BYTES, BASE_NONE, NULL, 0x0,
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"Source address", HFILL }
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},
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{ &hf_flexnet_ctl,
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{ "Control", "flexnet.ctl",
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FT_BYTES, BASE_NONE, NULL, 0x0,
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NULL, HFILL }
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},
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};
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/* Setup protocol subtree array */
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static gint *ett[] = {
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&ett_flexnet,
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&ett_flexnet_ctl,
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};
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/* Register the protocol name and description */
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proto_flexnet = proto_register_protocol("FlexNet", "FLEXNET", "flexnet");
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/* Required function calls to register the header fields and subtrees used */
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proto_register_field_array( proto_flexnet, hf, array_length( hf ) );
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proto_register_subtree_array( ett, array_length( ett ) );
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}
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void
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proto_reg_handoff_flexnet(void)
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{
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dissector_add_uint( "ax25.pid", AX25_P_FLEXNET, create_dissector_handle( dissect_flexnet, proto_flexnet ) );
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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: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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