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xlxd version 1.4.3

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Protection against sid=0
This commit is contained in:
LX3JL 2017-04-13 17:34:58 +02:00
parent 76dc7d1ecf
commit 55b75a7c6f
2 changed files with 44 additions and 35 deletions
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77
src/creflector.cpp
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@ -173,52 +173,61 @@ CPacketStream *CReflector::OpenStream(CDvHeaderPacket *DvHeader, CClient *client
// clients MUST have bee locked by the caller
// so we can freely access it within the fuction
// check if client is valid candidate
if ( m_Clients.IsClient(client) && !client->IsAMaster() )
// check if streamid is valid
if ( DvHeader->GetStreamId() != 0 )
{
// check if no stream with same streamid already open
// to prevent loops
if ( !IsStreamOpen(DvHeader) )
// check if client is valid candidate
if ( m_Clients.IsClient(client) && !client->IsAMaster() )
{
// get the module's queue
char module = DvHeader->GetRpt2Module();
CPacketStream *stream = GetStream(module);
if ( stream != NULL )
// check if no stream with same streamid already open
// to prevent loops
if ( !IsStreamOpen(DvHeader) )
{
// lock it
stream->Lock();
// is it available ?
if ( stream->Open(*DvHeader, client) )
// get the module's queue
char module = DvHeader->GetRpt2Module();
CPacketStream *stream = GetStream(module);
if ( stream != NULL )
{
// stream open, mark client as master
// so that it can't be deleted
client->SetMasterOfModule(module);
// lock it
stream->Lock();
// is it available ?
if ( stream->Open(*DvHeader, client) )
{
// stream open, mark client as master
// so that it can't be deleted
client->SetMasterOfModule(module);
// update last heard time
client->Heard();
retStream = stream;
// update last heard time
client->Heard();
retStream = stream;
// and push header packet
stream->Push(DvHeader);
// and push header packet
stream->Push(DvHeader);
// report
std::cout << "Opening stream on module " << module << " for client " << client->GetCallsign()
<< " with sid " << DvHeader->GetStreamId() << std::endl;
// report
std::cout << "Opening stream on module " << module << " for client " << client->GetCallsign()
<< " with sid " << DvHeader->GetStreamId() << std::endl;
// notify
g_Reflector.OnStreamOpen(stream->GetUserCallsign());
// notify
g_Reflector.OnStreamOpen(stream->GetUserCallsign());
}
// unlock now
stream->Unlock();
}
// unlock now
stream->Unlock();
}
else
{
// report
std::cout << "Detected stream loop on module " << DvHeader->GetRpt2Module() << " for client " << client->GetCallsign()
<< " with sid " << DvHeader->GetStreamId() << std::endl;
}
}
else
{
// report
std::cout << "Detected stream loop on module " << DvHeader->GetRpt2Module() << " for client " << client->GetCallsign()
<< " with sid " << DvHeader->GetStreamId() << std::endl;
}
}
else
{
// report
std::cout << "Detected null stream id for client " << client->GetCallsign() << std::endl;
}
// done

2
src/main.h
View File

@ -48,7 +48,7 @@
#define VERSION_MAJOR 1
#define VERSION_MINOR 4
#define VERSION_REVISION 2
#define VERSION_REVISION 3
// global ------------------------------------------------------