2012-05-02 01:44:40 +00:00
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/* packet-peekremote.c
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*
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* Routines for the disassembly of packets sent from Cisco WLAN
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* Controllers, possibly other Cisco access points, and possibly
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* other devices such as Aruba access points. See
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*
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* http://www.wildpackets.com/elements/omnipeek/OmniPeek_UserGuide.pdf
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*
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* which speaks of Aruba access points supporting remote capture and
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* defaulting to port 5000 for this, and also speaks of Cisco access
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* points supporting remote capture without any reference to a port
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* number. The two types of remote capture are described separately;
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* there's no indication of whether they use the same protocol for
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* streaming packets but perhaps other protocols for, for example,
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* discovery and setup, or whether they use different protocols
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* for streaming packets.
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*
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* Tested with frames captured from a Cisco WCS.
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*
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* $Id$
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*
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* Copyright 2007 Joerg Mayer (see AUTHORS file)
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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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2012-06-28 22:56:06 +00:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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2012-05-02 01:44:40 +00:00
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*/
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/*
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* TODO: Decode meta information.
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* Check on fillup bytes in capture (fcs sometimes wrong)
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* From:
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* http://www.cisco.com/univercd/cc/td/doc/product/wireless/pahcont/oweb.pdf
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* "It will include information on timestamp, signal strength, packet size
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* and so on"
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*/
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2012-09-20 02:03:38 +00:00
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#include "config.h"
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2012-05-02 01:44:40 +00:00
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#include <glib.h>
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#include <epan/packet.h>
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static int proto_peekremote = -1;
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static gint hf_peekremote_unknown1 = -1;
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static gint hf_peekremote_unknown2 = -1;
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static gint hf_peekremote_unknown3 = -1;
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static gint hf_peekremote_unknown4 = -1;
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static gint hf_peekremote_unknown5 = -1;
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static gint hf_peekremote_unknown6 = -1;
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static gint hf_peekremote_channel = -1;
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static gint hf_peekremote_timestamp = -1;
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static gint ett_peekremote = -1;
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static dissector_handle_t ieee80211_handle;
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static void
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dissect_peekremote(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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tvbuff_t *next_tvb;
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proto_tree *peekremote_tree = NULL;
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proto_item *ti = NULL;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "AIROPEEK");
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col_clear(pinfo->cinfo, COL_INFO);
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if (tree) {
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ti = proto_tree_add_item(tree, proto_peekremote, tvb, 0, -1, ENC_NA);
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peekremote_tree = proto_item_add_subtree(ti, ett_peekremote);
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proto_tree_add_item(peekremote_tree, hf_peekremote_unknown1, tvb, 0, 2, ENC_NA);
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proto_tree_add_item(peekremote_tree, hf_peekremote_unknown2, tvb, 2, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(peekremote_tree, hf_peekremote_unknown3, tvb, 4, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(peekremote_tree, hf_peekremote_unknown4, tvb, 6, 5, ENC_NA);
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proto_tree_add_item(peekremote_tree, hf_peekremote_timestamp, tvb, 11, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(peekremote_tree, hf_peekremote_unknown5, tvb, 15, 2, ENC_NA);
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proto_tree_add_item(peekremote_tree, hf_peekremote_channel, tvb, 17, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(peekremote_tree, hf_peekremote_unknown6, tvb, 18, 2, ENC_NA);
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}
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next_tvb = tvb_new_subset_remaining(tvb, 20);
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pinfo->pseudo_header->ieee_802_11.fcs_len = 4;
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call_dissector(ieee80211_handle, next_tvb, pinfo, tree);
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}
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void
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proto_register_peekremote(void)
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{
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static hf_register_info hf[] = {
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{ &hf_peekremote_unknown1,
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{ "Unknown1", "peekremote.unknown1", FT_BYTES, BASE_NONE, NULL,
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0x0, NULL, HFILL }},
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{ &hf_peekremote_unknown2,
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{ "caplength1", "peekremote.unknown2", FT_UINT16, BASE_DEC, NULL,
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0x0, NULL, HFILL }},
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{ &hf_peekremote_unknown3,
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{ "caplength2", "peekremote.unknown3", FT_UINT16, BASE_DEC, NULL,
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0x0, NULL, HFILL }},
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{ &hf_peekremote_unknown4,
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{ "Unknown4", "peekremote.unknown4", FT_BYTES, BASE_NONE, NULL,
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0x0, NULL, HFILL }},
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{ &hf_peekremote_unknown5,
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{ "Unknown5", "peekremote.unknown5", FT_BYTES, BASE_NONE, NULL,
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0x0, NULL, HFILL }},
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{ &hf_peekremote_unknown6,
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{ "Unknown6", "peekremote.unknown6", FT_BYTES, BASE_NONE, NULL,
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0x0, NULL, HFILL }},
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{ &hf_peekremote_timestamp,
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{ "Timestamp?", "peekremote.timestamp", FT_UINT32, BASE_DEC, NULL,
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0x0, NULL, HFILL }},
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{ &hf_peekremote_channel,
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{ "Channel", "peekremote.channel", FT_UINT8, BASE_DEC, NULL,
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0x0, NULL, HFILL }},
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};
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static gint *ett[] = {
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&ett_peekremote,
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};
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proto_peekremote = proto_register_protocol(
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"AiroPeek/OmniPeek encapsulated IEEE 802.11", "PEEKREMOTE", "peekremote");
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proto_register_field_array(proto_peekremote, 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_peekremote(void)
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{
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dissector_handle_t peekremote_handle;
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ieee80211_handle = find_dissector("wlan_datapad");
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peekremote_handle = create_dissector_handle(dissect_peekremote, proto_peekremote);
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dissector_add_uint("udp.port", 5000, peekremote_handle);
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}
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