include/trace-tools/wifi/frame/source_bssid_timestamp_id.hxx

00001 /*
00002  * trace-tools - A library and a set of tools to manipulate wireless traces.
00003  * Copyright (C) 2007  Universite Pierre et Marie Curie - Paris 6
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License as published by
00007  * the Free Software Foundation; either version 2 of the License, or
00008  * (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  * GNU General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU General Public License
00016  * along with this program; if not, write to the Free Software
00017  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
00018  * MA  02110-1301  USA
00019  *
00020  * Author: Thomas Claveirole <thomas.claveirole@lip6.fr>
00021  */
00022 #ifndef WIFI_FRAME_SOURCE_BSSID_TIMESTAMP_ID_HXX_
00023 # define WIFI_FRAME_SOURCE_BSSID_TIMESTAMP_ID_HXX_
00024 
00025 # include "source_bssid_timestamp_id.hh"
00026 
00027 # include <trace-tools/wifi/frame/id_helper_hooks.hh>
00028 # include <trace-tools/wifi/frame/dissector/dissector.hh>
00029 
00030 namespace wifi
00031 {
00032 
00033   namespace frame
00034   {
00035 
00036     template <>
00037     boost::optional<source_bssid_timestamp_id>
00038     make_unique_id<source_bssid_timestamp_id,
00039                    prism::header>(const pcapxx::frame_descriptor& desc,
00040                                   addr_mapping& mapping,
00041                                   bool          prism_noise_means_error)
00042     {
00043       typedef internals::id_helper_hooks        hooks;
00044 
00045       const void*       frame;
00046       size_t            caplen;
00047 
00048       if (not internals::make_unique_id_handle_prism(frame, caplen, desc,
00049                                                      prism_noise_means_error))
00050         return boost::none_t ();
00051 
00052       const dissector<hooks>    d (frame, caplen);
00053       const hooks&              h = d.hooks();
00054       const timestamp*          t = h.timestamp_ptr();
00055       const addr*               s = h.addr_ptr(mgt::header::sa);
00056       const addr*               b = h.addr_ptr(mgt::header::bssid);
00057 
00058       assert(not t or (s and b));
00059       if (t)
00060         return source_bssid_timestamp_id (desc.pcap_header()->id,
00061                                           mapping[*s], mapping[*b], *t);
00062       else
00063         return boost::none_t ();
00064     }
00065 
00066   } // End of namespace wifi::frame.
00067 
00068 } // End of namespace wifi.
00069 
00070 #endif // ! WIFI_FRAME_SOURCE_BSSID_TIMESTAMP_ID_HXX_
00071 

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