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/* packet-eero.c
* Routines for EERO packet disassembly
*
* By Charlie Lenahan <clenahan@sonicbison.com>
* Copyright 2019 Charlie Lenahan
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/capture_dissectors.h>
#include <epan/etypes.h>
void proto_register_eero(void);
void proto_reg_handoff_eero(void);
static int proto_eero = -1;
static int hf_eero_type = -1;
static int hf_eero_src_mac = -1;
static int hf_eero_data = -1;
static gint ett_eero = -1;
static dissector_handle_t eero_handle;
static capture_dissector_handle_t eero_cap_handle;
static gboolean
capture_eero(const guchar *pd _U_, int offset _U_, int len _U_, capture_packet_info_t *cpinfo, const union wtap_pseudo_header *pseudo_header _U_)
{
capture_dissector_increment_count(cpinfo, proto_eero);
return TRUE;
}
static int
dissect_eero(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
int tot_len;
proto_tree *eero_tree = NULL;
proto_item *ti;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "EERO");
col_clear(pinfo->cinfo, COL_INFO);
tot_len = tvb_reported_length_remaining(tvb,0);
if (tree)
{
int offset=0;
int type = tvb_get_guint8(tvb, 0);
ti = proto_tree_add_protocol_format(tree, proto_eero, tvb, offset, tot_len, "EERO, Type 0x%04x", type);
eero_tree = proto_item_add_subtree(ti, ett_eero);
proto_tree_add_uint(eero_tree, hf_eero_type, tvb, offset, 1, type);
offset+=1;
proto_tree_add_item(eero_tree, hf_eero_src_mac, tvb, offset, 6, ENC_NA);
offset += 6;
proto_tree_add_item(eero_tree,
hf_eero_data,
tvb, offset, tvb_reported_length_remaining(tvb,offset), ENC_NA);
}
return tvb_captured_length(tvb);
}
void
proto_register_eero(void)
{
static hf_register_info hf[] = {
{ &hf_eero_src_mac,
{ "Sender MAC address", "eero.hw_mac",
FT_ETHER, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_eero_type,
{ "Type", "eero.type",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_eero_data,
{ "Data", "eero.data",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
};
static gint *ett[] = {
&ett_eero
};
proto_eero = proto_register_protocol("EERO Protocol","EERO", "eero");
proto_register_field_array(proto_eero, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
eero_handle = register_dissector( "eero" , dissect_eero, proto_eero );
eero_cap_handle = register_capture_dissector("eero", capture_eero, proto_eero);
}
void
proto_reg_handoff_eero(void)
{
dissector_add_uint("ethertype", ETHERTYPE_EERO, eero_handle);
capture_dissector_add_uint("ethertype", ETHERTYPE_EERO, eero_cap_handle);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local Variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/
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