mDNSlocal void DNSSECProbeCallback(mDNS *const m, DNSQuestion *question, const ResourceRecord *const answer, QC_result AddRecord)
{
if (!AddRecord)
return;
mDNS_Lock(m);
if ((m->timenow - question->StopTime) >= 0)
{
mDNS_Unlock(m);
LogDNSSEC("DNSSECProbeCallback: Question %##s (%s) timed out", question->qname.c, DNSTypeName(question->qtype));
mDNS_StopQuery(m, question);
return;
}
mDNS_Unlock(m);
// Wait till we get the DNSSEC results. If we get a negative response e.g., no DNS servers, the
// question will be restarted by the core and we should have the DNSSEC results eventually.
if (AddRecord != QC_dnssec)
{
LogDNSSEC("DNSSECProbeCallback: Question %##s (%s)", question->qname.c, DNSTypeName(question->qtype), RRDisplayString(m, answer));
return;
}
LogDNSSEC("DNSSECProbeCallback: Question %##s (%s), DNSSEC status %s", question->qname.c, DNSTypeName(question->qtype),
DNSSECStatusName(question->ValidationStatus));
mDNS_StopQuery(m, question);
}
mDNSlocal void tcpConnectionCallback(TCPSocket *sock, void *context, mDNSBool ConnectionEstablished, mStatus err)
{
mStatus status = mStatus_NoError;
tcpLNTInfo *tcpInfo = (tcpLNTInfo *)context;
mDNSBool closed = mDNSfalse;
long n = 0;
long nsent = 0;
if (tcpInfo == mDNSNULL) { LogInfo("tcpConnectionCallback: no tcpInfo context"); status = mStatus_Invalid; goto exit; }
// The handlers below expect to be called with the lock held
mDNS_Lock(tcpInfo->m);
if (err) { LogInfo("tcpConnectionCallback: received error"); goto exit; }
if (ConnectionEstablished) // connection is established - send the message
{
LogInfo("tcpConnectionCallback: connection established, sending message");
nsent = mDNSPlatformWriteTCP(sock, (char *)tcpInfo->Request, tcpInfo->requestLen);
if (nsent != (long)tcpInfo->requestLen) { LogMsg("tcpConnectionCallback: error writing"); status = mStatus_UnknownErr; goto exit; }
}
else
{
n = mDNSPlatformReadTCP(sock, (char *)tcpInfo->Reply + tcpInfo->nread, tcpInfo->replyLen - tcpInfo->nread, &closed);
LogInfo("tcpConnectionCallback: mDNSPlatformReadTCP read %d bytes", n);
if (n < 0) { LogInfo("tcpConnectionCallback - read returned %d", n); status = mStatus_ConnFailed; goto exit; }
else if (closed) { LogInfo("tcpConnectionCallback: socket closed by remote end %d", tcpInfo->nread); status = mStatus_ConnFailed; goto exit; }
tcpInfo->nread += n;
LogInfo("tcpConnectionCallback tcpInfo->nread %d", tcpInfo->nread);
if (tcpInfo->nread > LNT_MAXBUFSIZE)
{
LogInfo("result truncated...");
tcpInfo->nread = LNT_MAXBUFSIZE;
}
switch (tcpInfo->op)
{
case LNTDiscoveryOp: handleLNTDeviceDescriptionResponse (tcpInfo); break;
case LNTExternalAddrOp: handleLNTGetExternalAddressResponse(tcpInfo); break;
case LNTPortMapOp: handleLNTPortMappingResponse (tcpInfo); break;
case LNTPortMapDeleteOp: status = mStatus_ConfigChanged; break;
default: LogMsg("tcpConnectionCallback: bad tcp operation! %d", tcpInfo->op); status = mStatus_Invalid; break;
}
}
exit:
if (err || status)
{
mDNS *m = tcpInfo->m;
switch (tcpInfo->op)
{
case LNTDiscoveryOp: if (m->UPnPSOAPAddressString == mDNSNULL)
mDNSASLLog((uuid_t *)&m->asl_uuid, "natt.legacy.DeviceDescription", "failure", "SOAP Address", "");
if (m->UPnPSOAPURL == mDNSNULL)
mDNSASLLog((uuid_t *)&m->asl_uuid, "natt.legacy.DeviceDescription", "failure", "SOAP path", "");
if (m->UPnPSOAPAddressString && m->UPnPSOAPURL)
mDNSASLLog((uuid_t *)&m->asl_uuid, "natt.legacy.DeviceDescription", "success", "success", "");
break;
case LNTExternalAddrOp: mDNSASLLog((uuid_t *)&m->asl_uuid, "natt.legacy.AddressRequest", mDNSIPv4AddressIsZero(m->ExternalAddress) ? "failure" : "success", mDNSIPv4AddressIsZero(m->ExternalAddress) ? "failure" : "success", "");
break;
case LNTPortMapOp: if (tcpInfo->parentNATInfo)
mDNSASLLog((uuid_t *)&m->asl_uuid, "natt.legacy.PortMapRequest", (tcpInfo->parentNATInfo->Result) ? "failure" : "success",
(tcpInfo->parentNATInfo->Result) ? "failure" : "success", "Result: %d", tcpInfo->parentNATInfo->Result);
break;
case LNTPortMapDeleteOp: break;
default: break;
}
mDNSPlatformTCPCloseConnection(tcpInfo->sock);
tcpInfo->sock = mDNSNULL;
if (tcpInfo->Request) { mDNSPlatformMemFree(tcpInfo->Request); tcpInfo->Request = mDNSNULL; }
if (tcpInfo->Reply ) { mDNSPlatformMemFree(tcpInfo->Reply); tcpInfo->Reply = mDNSNULL; }
}
if (tcpInfo) mDNS_Unlock(tcpInfo->m);
if (status == mStatus_ConfigChanged) DisposeInfoFromUnmapList(tcpInfo->m, tcpInfo);
}
