forked from osmocom/wireshark
![Michael Mann](/assets/img/avatar_default.png)
Ping-Bug: 12759 Change-Id: Ic4d47155168978541fb8c3670fcabaf3c35f8aad Reviewed-on: https://code.wireshark.org/review/19187 Petri-Dish: Michael Mann <mmann78@netscape.net> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Michael Mann <mmann78@netscape.net>
181 lines
5.6 KiB
C
181 lines
5.6 KiB
C
/* packet-homepna.c
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <epan/packet.h>
|
|
#include <epan/etypes.h>
|
|
|
|
void proto_register_homepna(void);
|
|
void proto_reg_handoff_homepna(void);
|
|
|
|
static int proto_homepna = -1;
|
|
|
|
static int hf_homepna_type = -1;
|
|
static int hf_homepna_length = -1;
|
|
static int hf_homepna_version = -1;
|
|
static int hf_homepna_data = -1;
|
|
static int hf_homepna_etype = -1;
|
|
static int hf_homepna_trailer = -1;
|
|
|
|
static gint ett_homepna = -1;
|
|
|
|
static dissector_handle_t ethertype_handle;
|
|
|
|
static const range_string homepna_type_rvals[] = {
|
|
{ 0, 0, "Non-standard" },
|
|
{ 1, 1, "Rate Request Control Frame" },
|
|
{ 2, 2, "Link Integrity Short Frame" },
|
|
{ 3, 3, "Capabilities Announcement" },
|
|
{ 4, 4, "LARQ" },
|
|
{ 5, 5, "Vendor-specific short format type" },
|
|
{ 6, 127, "Reserved for future use by the ITU-T" },
|
|
{ 128, 32767, "Reserved for future use by the ITU-T" },
|
|
{ 32768, 32768, "Reserved for future use by the ITU-T" },
|
|
{ 32769, 32769, "Vendor-specific long-format" },
|
|
{ 32770, 65535, "Reserved for future use by the ITU-T" },
|
|
{ 0, 0, NULL }
|
|
};
|
|
|
|
typedef enum
|
|
{
|
|
HOMEPNA_FORMAT_SHORT,
|
|
HOMEPNA_FORMAT_LONG
|
|
} homepna_format_e;
|
|
|
|
static int
|
|
dissect_homepna(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
|
|
{
|
|
proto_tree *ti;
|
|
proto_tree *homepna_tree;
|
|
int offset = 0;
|
|
guint32 control_length;
|
|
homepna_format_e homepna_format = HOMEPNA_FORMAT_SHORT;
|
|
guint16 protocol;
|
|
ethertype_data_t ethertype_data;
|
|
|
|
if (tvb_captured_length(tvb) < 4)
|
|
return 0;
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "HomePNA");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
ti = proto_tree_add_item(tree, proto_homepna, tvb, 0, -1, ENC_NA);
|
|
homepna_tree = proto_item_add_subtree(ti, ett_homepna);
|
|
|
|
if (tvb_get_guint8(tvb, offset) > 127)
|
|
homepna_format = HOMEPNA_FORMAT_LONG;
|
|
|
|
if (homepna_format == HOMEPNA_FORMAT_SHORT)
|
|
{
|
|
proto_tree_add_item(homepna_tree, hf_homepna_type, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset += 1;
|
|
proto_tree_add_item_ret_uint(homepna_tree, hf_homepna_length, tvb, offset, 1, ENC_BIG_ENDIAN, &control_length);
|
|
offset += 1;
|
|
}
|
|
else
|
|
{
|
|
proto_tree_add_item(homepna_tree, hf_homepna_type, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
proto_tree_add_item_ret_uint(homepna_tree, hf_homepna_length, tvb, offset, 2, ENC_BIG_ENDIAN, &control_length);
|
|
offset += 2;
|
|
}
|
|
|
|
proto_tree_add_item(homepna_tree, hf_homepna_version, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(homepna_tree, hf_homepna_data, tvb, offset, control_length-3, ENC_NA);
|
|
offset += (control_length-2);
|
|
|
|
protocol = tvb_get_ntohs(tvb, offset);
|
|
offset += 2;
|
|
|
|
ethertype_data.etype = protocol;
|
|
ethertype_data.offset_after_ethertype = offset;
|
|
ethertype_data.fh_tree = homepna_tree;
|
|
ethertype_data.etype_id = hf_homepna_etype;
|
|
ethertype_data.trailer_id = hf_homepna_trailer;
|
|
ethertype_data.fcs_len = 4;
|
|
|
|
call_dissector_with_data(ethertype_handle, tvb, pinfo, tree, ðertype_data);
|
|
|
|
return tvb_captured_length(tvb);
|
|
}
|
|
|
|
void
|
|
proto_register_homepna(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_homepna_type,
|
|
{ "Type", "hpna.type", FT_UINT16, BASE_DEC|BASE_RANGE_STRING, RVALS(homepna_type_rvals), 0x0,
|
|
NULL, HFILL}},
|
|
{ &hf_homepna_length,
|
|
{ "Length", "hpna.length", FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
{ &hf_homepna_version,
|
|
{ "Version", "hpna.version", FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
{ &hf_homepna_data,
|
|
{ "Data", "hpna.data", FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
{ &hf_homepna_etype,
|
|
{ "Ethertype", "hpna.etype", FT_UINT16, BASE_HEX, VALS(etype_vals), 0x0,
|
|
NULL, HFILL}},
|
|
{ &hf_homepna_trailer,
|
|
{ "Trailer", "hpna.trailer", FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_homepna,
|
|
};
|
|
|
|
proto_homepna = proto_register_protocol("HomePNA, wlan link local tunnel", "HomePNA", "hpna");
|
|
proto_register_field_array(proto_homepna, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
|
|
|
|
void
|
|
proto_reg_handoff_homepna(void)
|
|
{
|
|
dissector_handle_t homepna_handle;
|
|
|
|
homepna_handle = create_dissector_handle(dissect_homepna, proto_homepna);
|
|
dissector_add_uint("ethertype", ETHERTYPE_LINK_CTL, homepna_handle);
|
|
|
|
ethertype_handle = find_dissector_add_dependency("ethertype", proto_homepna);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|