packet-airopeek.c
上传用户:aseley
上传日期:2016-01-25
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文件大小:4k
- /* packet-airopeek.c
- *
- * Routines for the disassembly airopeek encapsulated wireless
- * traces (tested with frames captured from a Cisco WCS).
- *
- * $Id: packet-airopeek.c 24395 2008-02-19 22:08:11Z jmayer $
- *
- * Copyright 2007 Joerg Mayer (see AUTHORS file)
- *
- * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
- /*
- * TODO: Decode meta information.
- * Check on fillup bytes in capture (fcs sometimes wrong)
- * From:
- * http://www.cisco.com/univercd/cc/td/doc/product/wireless/pahcont/oweb.pdf
- * "It will include information on timestamp, signal strength, packet size
- * and so on"
- */
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <string.h>
- #include <glib.h>
- #include <epan/packet.h>
- static int proto_airopeek = -1;
- static gint hf_airopeek_unknown1 = -1;
- static gint hf_airopeek_unknown2 = -1;
- static gint hf_airopeek_unknown3 = -1;
- static gint hf_airopeek_unknown4 = -1;
- static gint ett_airopeek = -1;
- static dissector_handle_t ieee80211_handle;
- static void
- dissect_airopeek(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
- {
- tvbuff_t *next_tvb;
- proto_tree *airopeek_tree = NULL;
- proto_item *ti = NULL;
- int offset = 0;
- if (check_col(pinfo->cinfo, COL_PROTOCOL))
- col_set_str(pinfo->cinfo, COL_PROTOCOL, "AIROPEEK");
- if (check_col(pinfo->cinfo, COL_INFO))
- col_clear(pinfo->cinfo, COL_INFO);
- if (tree) {
- ti = proto_tree_add_item(tree, proto_airopeek, tvb, 0, -1, FALSE);
- airopeek_tree = proto_item_add_subtree(ti, ett_airopeek);
- }
- if (tree) {
- proto_tree_add_item(airopeek_tree, hf_airopeek_unknown1, tvb, offset, 2,
- FALSE);
- offset += 2;
- proto_tree_add_item(airopeek_tree, hf_airopeek_unknown2, tvb, offset, 2,
- FALSE);
- offset += 2;
- proto_tree_add_item(airopeek_tree, hf_airopeek_unknown3, tvb, offset, 2,
- FALSE);
- offset += 2;
- proto_tree_add_item(airopeek_tree, hf_airopeek_unknown4, tvb, offset, 14,
- FALSE);
- offset += 14;
- }
- next_tvb = tvb_new_subset(tvb, offset, -1, -1);
- call_dissector(ieee80211_handle, next_tvb, pinfo, tree);
- }
- void
- proto_register_airopeek(void)
- {
- static hf_register_info hf[] = {
- { &hf_airopeek_unknown1,
- { "Unknown1", "airopeek.unknown1", FT_BYTES, BASE_NONE, NULL,
- 0x0, "", HFILL }},
- { &hf_airopeek_unknown2,
- { "caplength1", "airopeek.unknown2", FT_UINT16, BASE_DEC, NULL,
- 0x0, "", HFILL }},
- { &hf_airopeek_unknown3,
- { "caplength2", "airopeek.unknown3", FT_UINT16, BASE_DEC, NULL,
- 0x0, "", HFILL }},
- { &hf_airopeek_unknown4,
- { "Unknown4", "airopeek.unknown4", FT_BYTES, BASE_NONE, NULL,
- 0x0, "", HFILL }},
- };
- static gint *ett[] = {
- &ett_airopeek,
- };
- proto_airopeek = proto_register_protocol(
- "Airopeek encapsulated IEEE 802.11", "AIROPEEK", "airopeek");
- proto_register_field_array(proto_airopeek, hf, array_length(hf));
- proto_register_subtree_array(ett, array_length(ett));
- }
- void
- proto_reg_handoff_airopeek(void)
- {
- dissector_handle_t airopeek_handle;
- ieee80211_handle = find_dissector("wlan_datapad");
- airopeek_handle = create_dissector_handle(dissect_airopeek, proto_airopeek);
- dissector_add("udp.port", 5000, airopeek_handle);
- }