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/*
This file is part of Kismet
Kismet 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.
Kismet 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 Kismet; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __PACKETSOURCE_H__
#define __PACKETSOURCE_H__
#include "config.h"
#include <string>
#include <errno.h>
#include "packet.h"
#include "timetracker.h"
#include "gpsd.h"
// All packetsources need to provide out-of-class functions for the
// packetsourcetracker class
//
// typedef KisPacketSource *(*packsource_registrant)(string, string);
// typedef int (*packsource_chcontrol)(char *, int, char *);
// typedef int (*packsource_monitor)(char *, int, char *);
// Packet capture source superclass
class KisPacketSource {
public:
KisPacketSource(string in_name, string in_dev) {
name = in_name;
interface = in_dev;
gpsd = NULL;
timetracker = NULL;
fcsbytes = 0;
parameters.fuzzy_crypt = 0;
parameters.fuzzy_decode = 0;
flag = 0;
}
virtual ~KisPacketSource() { };
// Open the packet source
virtual int OpenSource() = 0;
virtual int CloseSource() = 0;
// Get the channel
virtual int FetchChannel() {
return channel;
}
// Set the logical channel (ie, when chan control returns to us)
virtual void SetLocalChannel(int in_ch) {
channel = in_ch;
}
// Get the FD of our packet source
virtual int FetchDescriptor() = 0;
// Get a packet from the medium
virtual int FetchPacket(kis_packet *packet, uint8_t *data, uint8_t *moddata) = 0;
// Register a timer event handler for us to use
void AddTimetracker(Timetracker *in_tracker) { timetracker = in_tracker; }
// Register the GPS server for us to use
void AddGpstracker(GPSD *in_gpsd) { gpsd = in_gpsd; }
// Get the error
char *FetchError() { return(errstr); }
// Get the name
const char *FetchName() { return(name.c_str()); }
// Get the interface
const char *FetchInterface() { return(interface.c_str()); }
// Set the interface
void SetInterface(string in_if) { interface = in_if; }
// Fetch number of packets
int FetchNumPackets() { return num_packets; }
// Ignore incoming packets
void Pause() { paused = 1; };
// Stop ignoring incoming packets
void Resume() { paused = 0; };
// Misc flag
void SetFlag(int in_flag) { flag = in_flag; }
int FetchFlag() { return flag; }
// Set packet parameters
void SetPackparm(packet_parm in_parameters) {
if (in_parameters.fuzzy_crypt != -1)
parameters.fuzzy_crypt = in_parameters.fuzzy_crypt;
if (in_parameters.fuzzy_decode != -1)
parameters.fuzzy_decode = in_parameters.fuzzy_decode;
}
// Get packet parameters
packet_parm GetPackparm() {
return parameters;
}
// Bytes in the FCS - public so monitor can write it
int fcsbytes;
protected:
// Get the bytes in the fcs
virtual int FCSBytes() {
return fcsbytes;
}
// Global tracking pointers
Timetracker *timetracker;
GPSD *gpsd;
char errstr[1024];
int paused;
// Random flag to denote "something" (as defined by a subclass)
int flag;
// Name, interface
string name;
string interface;
// Various parameters we track
packet_parm parameters;
// Total packets
unsigned int num_packets;
// Current channel, if we don't fetch it live
int channel;
};
#endif
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