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/*
This class maps the ZRTP C++ callback methods to C callback methods.
Copyright (C) 2010 Werner Dittmann
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <libzrtpcpp/ZrtpCallbackWrapper.h>
ZrtpCallbackWrapper::ZrtpCallbackWrapper(zrtp_Callbacks* cb, ZrtpContext* ctx) :
c_callbacks(cb), zrtpCtx(ctx)
{
init();
}
void ZrtpCallbackWrapper::init()
{
}
/*
* The following methods implement the GNU ZRTP callback interface.
* For detailed documentation refer to file ZrtpCallback.h
*/
int32_t ZrtpCallbackWrapper::sendDataZRTP(const unsigned char* data, int32_t length)
{
return c_callbacks->zrtp_sendDataZRTP(zrtpCtx, data, length);
}
int32_t ZrtpCallbackWrapper::activateTimer (int32_t time)
{
c_callbacks->zrtp_activateTimer(zrtpCtx, time);
return 1;
}
int32_t ZrtpCallbackWrapper::cancelTimer()
{
c_callbacks->zrtp_cancelTimer(zrtpCtx);
return 0;
}
void ZrtpCallbackWrapper::sendInfo (GnuZrtpCodes::MessageSeverity severity, int32_t subCode)
{
c_callbacks->zrtp_sendInfo(zrtpCtx, (int32_t)severity, subCode);
}
bool ZrtpCallbackWrapper::srtpSecretsReady(SrtpSecret_t* secrets, EnableSecurity part)
{
C_SrtpSecret_t* cs = new C_SrtpSecret_t;
cs->symEncAlgorithm = (zrtp_SrtpAlgorithms)secrets->symEncAlgorithm;
cs->initKeyLen = secrets->initKeyLen;
cs->initSaltLen = secrets->initSaltLen;
cs->keyInitiator = secrets->keyInitiator;
cs->keyResponder = secrets->keyResponder;
cs->respKeyLen = secrets->respKeyLen;
cs->respSaltLen = secrets->respSaltLen;
cs->role = (int32_t)secrets->role;
cs->saltInitiator = secrets->saltInitiator;
cs->saltResponder = secrets->saltResponder;
cs->sas = new char [secrets->sas.size()+1];
strcpy(cs->sas, secrets->sas.c_str());
cs->authAlgorithm = (zrtp_SrtpAlgorithms)secrets->authAlgorithm;
cs->srtpAuthTagLen = secrets->srtpAuthTagLen;
bool retval = (c_callbacks->zrtp_srtpSecretsReady(zrtpCtx, cs, (int32_t)part) == 0) ? false : true ;
delete[] cs->sas;
delete cs;
return retval;
}
void ZrtpCallbackWrapper::srtpSecretsOff (EnableSecurity part )
{
c_callbacks->zrtp_srtpSecretsOff(zrtpCtx, (int32_t)part);
}
void ZrtpCallbackWrapper::srtpSecretsOn ( std::string c, std::string s, bool verified )
{
char* cc = new char [c.size()+1];
char* cs = new char [s.size()+1];
strcpy(cc, c.c_str());
if(!s.empty())
strcpy(cs, s.c_str());
else
*cs = '\0';
c_callbacks->zrtp_rtpSecretsOn(zrtpCtx, cc, cs, verified?1:0);
delete[] cc;
delete[] cs;
}
void ZrtpCallbackWrapper::handleGoClear()
{
}
void ZrtpCallbackWrapper::zrtpNegotiationFailed(GnuZrtpCodes::MessageSeverity severity, int32_t subCode)
{
c_callbacks->zrtp_zrtpNegotiationFailed(zrtpCtx, (int32_t)severity, subCode);
}
void ZrtpCallbackWrapper::zrtpNotSuppOther()
{
c_callbacks->zrtp_zrtpNotSuppOther(zrtpCtx);
}
void ZrtpCallbackWrapper::synchEnter()
{
c_callbacks->zrtp_synchEnter(zrtpCtx);
}
void ZrtpCallbackWrapper::synchLeave()
{
c_callbacks->zrtp_synchLeave(zrtpCtx);
}
void ZrtpCallbackWrapper::zrtpAskEnrollment(GnuZrtpCodes::InfoEnrollment info)
{
c_callbacks->zrtp_zrtpAskEnrollment(zrtpCtx, (zrtp_InfoEnrollment)info);
}
void ZrtpCallbackWrapper::zrtpInformEnrollment(GnuZrtpCodes::InfoEnrollment info)
{
c_callbacks->zrtp_zrtpInformEnrollment(zrtpCtx, (zrtp_InfoEnrollment)info);
}
void ZrtpCallbackWrapper::signSAS(uint8_t* sasHash)
{
c_callbacks->zrtp_signSAS(zrtpCtx, sasHash);
}
bool ZrtpCallbackWrapper::checkSASSignature(uint8_t* sasHash)
{
bool retval = (c_callbacks->zrtp_checkSASSignature(zrtpCtx, sasHash) == 0) ? false : true;
return retval;
}
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