2014-02-05 08:23:39 +00:00
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/* packet-aruba-iap.c
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* Routines for Aruba IAP header disassembly
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* Copyright 2014, Alexis La Goutte <alexis.lagoutte at gmail dot 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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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/*
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* Aruba Instant AP broadcast on L2 Layer with ethertype 0x8ffd
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* All frame start with 0xbeef (Magic number ?)
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* The address IP(v4) of Aruba Instant AP is available start in offset 11
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* the 3 octet is may be a type field(found some frame with this octet is different and data is different)
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* Octet to 7 to 10 is may be uptime of AP (the value always increment )
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*/
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#include "config.h"
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/addr_resolv.h>
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#define ETHERTYPE_IAP 0x8ffd
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#define MAGIC_IAP 0xbeef
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void proto_register_aruba_iap(void);
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void proto_reg_handoff_aruba_iap(void);
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static int proto_aruba_iap = -1;
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static gint ett_aruba_iap = -1;
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static int hf_iap_magic = -1;
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static int hf_iap_type = -1;
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static int hf_iap_ip = -1;
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static int hf_iap_unknown_uint = -1;
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static int hf_iap_unknown_bytes = -1;
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static int
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dissect_aruba_iap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
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{
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proto_tree *ti = NULL;
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proto_tree *aruba_iap_tree = NULL;
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guint16 magic;
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int offset = 0;
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magic = tvb_get_ntohs(tvb, offset);
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if(magic != MAGIC_IAP)
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{
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return 0;
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}
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "IAP");
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2014-03-02 19:11:51 +00:00
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col_clear(pinfo->cinfo, COL_INFO);
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2014-02-05 08:23:39 +00:00
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if (tree) {
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ti = proto_tree_add_item(tree, proto_aruba_iap, tvb, 0, 0, ENC_NA);
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aruba_iap_tree = proto_item_add_subtree(ti, ett_aruba_iap);
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}
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proto_tree_add_item(aruba_iap_tree, hf_iap_magic, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(aruba_iap_tree, hf_iap_type, tvb, offset, 1, ENC_BIG_ENDIAN);
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2014-03-02 19:11:51 +00:00
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offset += 1;
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2014-02-05 08:23:39 +00:00
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proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_uint, tvb, offset, 4, ENC_BIG_ENDIAN);
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2014-03-02 19:11:51 +00:00
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offset += 4;
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2014-02-05 08:23:39 +00:00
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proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_uint, tvb, offset, 4, ENC_BIG_ENDIAN);
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2014-03-02 19:11:51 +00:00
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offset += 4;
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2014-02-05 08:23:39 +00:00
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proto_tree_add_item(aruba_iap_tree, hf_iap_ip, tvb, offset, 4, ENC_BIG_ENDIAN);
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col_add_fstr(pinfo->cinfo, COL_INFO, "Aruba Instant AP IP: %s", tvb_ip_to_str(tvb, offset));
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offset += 4;
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proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_uint, tvb, offset, 4, ENC_BIG_ENDIAN);
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2014-03-02 19:11:51 +00:00
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offset += 4;
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2014-02-05 08:23:39 +00:00
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proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_uint, tvb, offset, 4, ENC_BIG_ENDIAN);
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2014-03-02 19:11:51 +00:00
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offset += 4;
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2014-02-05 08:23:39 +00:00
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proto_tree_add_item(aruba_iap_tree, hf_iap_unknown_bytes, tvb, offset, -1, ENC_NA);
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offset += tvb_reported_length(tvb);
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return offset;
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}
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void
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proto_register_aruba_iap(void)
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{
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static hf_register_info hf[] = {
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{ &hf_iap_magic,
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{ "Magic", "aruba_iap.magic", FT_UINT16, BASE_HEX, NULL,0x0,
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"Magic Number of IAP trafic (Always 0x8ffd)", HFILL}},
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{ &hf_iap_type,
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{ "Type (?)", "aruba_iap.type", FT_UINT8, BASE_DEC_HEX, NULL, 0x0,
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"May type field...", HFILL}},
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{ &hf_iap_ip,
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{ "IP", "aruba_iap.ip", FT_IPv4, BASE_NONE, NULL, 0x0,
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"Address IP of IAP", HFILL}},
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{ &hf_iap_unknown_bytes,
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{ "Unknown", "aruba_iap.unknown.bytes", FT_BYTES, BASE_NONE, NULL, 0x0,
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"Unknown Data...", HFILL}},
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{ &hf_iap_unknown_uint,
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{ "Unknown", "aruba_iap.unknown.uint", FT_UINT32, BASE_DEC_HEX, NULL, 0x0,
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"Unknown (UINT) Data...", HFILL}},
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};
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static gint *ett[] = {
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&ett_aruba_iap,
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};
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proto_aruba_iap = proto_register_protocol("Aruba Instant AP Protocol",
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"aruba_iap", "aruba_iap");
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proto_register_field_array(proto_aruba_iap, 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_aruba_iap(void)
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{
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dissector_handle_t iap_handle;
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iap_handle = new_create_dissector_handle(dissect_aruba_iap, proto_aruba_iap);
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dissector_add_uint("ethertype", ETHERTYPE_IAP, iap_handle);
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}
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/*
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* Editor modelines - http://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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