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gpstracker.h
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gpstracker.h
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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 __GPSTRACKER_H__
#define __GPSTRACKER_H__
#include "config.h"
#include <mutex>
#include "packetchain.h"
#include "globalregistry.h"
#include "kis_net_microhttpd.h"
#include "tracked_location.h"
class KisGpsBuilder;
typedef shared_ptr<KisGpsBuilder> SharedGpsBuilder;
class KisGps;
typedef shared_ptr<KisGps> SharedGps;
// Packet info attached to each packet, if there isn't already GPS info present
class kis_gps_packinfo : public packet_component {
public:
kis_gps_packinfo() {
self_destruct = 1;
lat = lon = alt = speed = heading = 0;
precision = 0;
fix = 0;
tv.tv_sec = 0;
tv.tv_usec = 0;
}
kis_gps_packinfo(kis_gps_packinfo *src) {
if (src != NULL) {
self_destruct = src->self_destruct;
lat = src->lat;
lon = src->lon;
alt = src->alt;
speed = src->speed;
heading = src->heading;
precision = src->precision;
fix = src->fix;
tv.tv_sec = src->tv.tv_sec;
tv.tv_usec = src->tv.tv_usec;
gpsuuid = src->gpsuuid;
gpsname = src->gpsname;
}
}
shared_ptr<kis_tracked_location_triplet> as_tracked_triplet(GlobalRegistry *globalreg) {
shared_ptr<kis_tracked_location_triplet>
r(new kis_tracked_location_triplet(globalreg, 0));
r->set_lat(lat);
r->set_lon(lon);
r->set_alt(alt);
r->set_speed(speed);
r->set_heading(heading);
r->set_fix(fix);
r->set_valid(fix >= 2);
r->set_time_sec(tv.tv_sec);
r->set_time_usec(tv.tv_usec);
return r;
}
double lat;
double lon;
double alt;
double speed;
double heading;
// If we know it, how accurate our location is, in meters
double precision;
// If we know it, 2d vs 3d fix
int fix;
struct timeval tv;
// GPS that created us
uuid gpsuuid;
// Name of GPS that created us
string gpsname;
};
/* GPS manager which handles configuring GPS sources and deciding which one
* is going to be used */
class GpsTracker : public Kis_Net_Httpd_CPPStream_Handler, public LifetimeGlobal {
public:
static shared_ptr<GpsTracker> create_gpsmanager(GlobalRegistry *in_globalreg) {
shared_ptr<GpsTracker> mon(new GpsTracker(in_globalreg));
in_globalreg->RegisterLifetimeGlobal(mon);
in_globalreg->InsertGlobal("GPSTRACKER", mon);
return mon;
}
private:
GpsTracker(GlobalRegistry *in_globalreg);
public:
virtual ~GpsTracker();
virtual bool Httpd_VerifyPath(const char *path, const char *method);
virtual void Httpd_CreateStreamResponse(Kis_Net_Httpd *httpd,
Kis_Net_Httpd_Connection *connection,
const char *url, const char *method, const char *upload_data,
size_t *upload_data_size, std::stringstream &stream);
// Register a gps builer prototype
void register_gps_builder(SharedGpsBuilder in_builder);
// Create a GPS from a definition string
shared_ptr<KisGps> create_gps(string in_definition);
// Remove a GPS by UUID
bool remove_gps(uuid in_uuid);
// Set a primary GPS
bool set_primary_gps(uuid in_uuid);
// Get the 'best' location - returns a NEW gpspackinfo which the caller is
// responsible for deleting.
kis_gps_packinfo *get_best_location();
// Populate packets that don't have a GPS location
static int kis_gpspack_hook(CHAINCALL_PARMS);
protected:
GlobalRegistry *globalreg;
std::recursive_timed_mutex gpsmanager_mutex;
SharedTrackerElement gps_prototypes;
TrackerElementVector gps_prototypes_vec;
// GPS instances, as a vector, sorted by priority; we don't mind doing a
// linear search because we'll typically have very few GPS devices
SharedTrackerElement gps_instances;
TrackerElementVector gps_instances_vec;
// Extra field we insert into a location triplet
int tracked_uuid_addition_id;
};
#endif