void ConnectionDescriptor::_DispatchCiphertext()
{
assert (SslBox);
char BigBuf [2048];
bool did_work;
do {
did_work = false;
// try to drain ciphertext
while (SslBox->CanGetCiphertext()) {
int r = SslBox->GetCiphertext (BigBuf, sizeof(BigBuf));
assert (r > 0);
_SendRawOutboundData (BigBuf, r);
did_work = true;
}
// Pump the SslBox, in case it has queued outgoing plaintext
// This will return >0 if data was written,
// 0 if no data was written, and <0 if there was a fatal error.
bool pump;
do {
pump = false;
int w = SslBox->PutPlaintext (NULL, 0);
if (w > 0) {
did_work = true;
pump = true;
}
else if (w < 0)
ScheduleClose (false);
} while (pump);
// try to put plaintext. INCOMPLETE, doesn't belong here?
// In SendOutboundData, we're spooling plaintext directly
// into SslBox. That may be wrong, we may need to buffer it
// up here!
/*
const char *ptr;
int ptr_length;
while (OutboundPlaintext.GetPage (&ptr, &ptr_length)) {
assert (ptr && (ptr_length > 0));
int w = SslMachine.PutPlaintext (ptr, ptr_length);
if (w > 0) {
OutboundPlaintext.DiscardBytes (w);
did_work = true;
}
else
break;
}
*/
} while (did_work);
}
int ConnectionDescriptor::SendOutboundData (const char *data, int length)
{
#ifdef WITH_SSL
if (SslBox) {
if (length > 0) {
int w = SslBox->PutPlaintext (data, length);
if (w < 0)
ScheduleClose (false);
else
_DispatchCiphertext();
}
// TODO: What's the correct return value?
return 1; // That's a wild guess, almost certainly wrong.
}
else
#endif
return _SendRawOutboundData (data, length);
}
int ConnectionDescriptor::SendOutboundData (const char *data, int length)
{
if (bWatchOnly)
throw std::runtime_error ("cannot send data on a 'watch only' connection");
if (ProxiedFrom && MaxOutboundBufSize && (unsigned int)(GetOutboundDataSize() + length) > MaxOutboundBufSize)
ProxiedFrom->Pause();
#ifdef WITH_SSL
if (SslBox) {
if (length > 0) {
int w = SslBox->PutPlaintext (data, length);
if (w < 0)
ScheduleClose (false);
else
_DispatchCiphertext();
}
// TODO: What's the correct return value?
return 1; // That's a wild guess, almost certainly wrong.
}
else
#endif
return _SendRawOutboundData (data, length);
}
