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-rw-r--r--Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.c27
-rw-r--r--Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.h2
2 files changed, 17 insertions, 12 deletions
diff --git a/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.c b/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.c
index 674643381..c94495dc3 100644
--- a/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.c
+++ b/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.c
@@ -381,19 +381,24 @@ int16_t TCP_ProcessTCPPacket(void* IPHeaderInStart, void* TCPHeaderInStart, void
case TCP_Connection_Listen:
if (TCPHeaderIN->Flags == TCP_FLAG_SYN)
{
- /* SYN connection when closed starts a connection with a peer */
+ /* SYN connection starts a connection with a peer */
+ if (TCP_SetConnectionState(TCPHeaderIN->DestinationPort, IPHeaderIN->SourceAddress,
+ TCPHeaderIN->SourcePort, TCP_Connection_SYNReceived))
+ {
+ TCPHeaderOUT->Flags = (TCP_FLAG_SYN | TCP_FLAG_ACK);
- TCPHeaderOUT->Flags = (TCP_FLAG_SYN | TCP_FLAG_ACK);
- PacketResponse = true;
-
- TCP_SetConnectionState(TCPHeaderIN->DestinationPort, IPHeaderIN->SourceAddress, TCPHeaderIN->SourcePort,
- TCP_Connection_SYNReceived);
-
- ConnectionInfo = TCP_GetConnectionInfo(TCPHeaderIN->DestinationPort, IPHeaderIN->SourceAddress, TCPHeaderIN->SourcePort);
+ ConnectionInfo = TCP_GetConnectionInfo(TCPHeaderIN->DestinationPort, IPHeaderIN->SourceAddress, TCPHeaderIN->SourcePort);
- ConnectionInfo->SequenceNumberIn = (SwapEndian_32(TCPHeaderIN->SequenceNumber) + 1);
- ConnectionInfo->SequenceNumberOut = 0;
- ConnectionInfo->Buffer.InUse = false;
+ ConnectionInfo->SequenceNumberIn = (SwapEndian_32(TCPHeaderIN->SequenceNumber) + 1);
+ ConnectionInfo->SequenceNumberOut = 0;
+ ConnectionInfo->Buffer.InUse = false;
+ }
+ else
+ {
+ TCPHeaderOUT->Flags = TCP_FLAG_RST;
+ }
+
+ PacketResponse = true;
}
break;
diff --git a/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.h b/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.h
index b61de7e18..4e1e0d7a6 100644
--- a/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.h
+++ b/Demos/Device/ClassDriver/RNDISEthernet/Lib/TCP.h
@@ -49,7 +49,7 @@
#define MAX_OPEN_TCP_PORTS 1
/** Maximum number of TCP connections which can be sustained at the one time */
- #define MAX_TCP_CONNECTIONS 1
+ #define MAX_TCP_CONNECTIONS 3
/** TCP window size, giving the maximum number of bytes which can be buffered at the one time */
#define TCP_WINDOW_SIZE 512