NetTest - Compiles, doesn't yet do much

[tpg/acess2.git] / Tools / NetTest / nic.c

diff --git a/Tools/NetTest/nic.c b/Tools/NetTest/nic.c
index e69de29..1e736c2 100644 (file)
--- a/Tools/NetTest/nic.c
+++ b/Tools/NetTest/nic.c
@@ -0,0 +1,78 @@
+/*
+ * Acess2 Networking Test Suite (NetTest)
+ * - By John Hodge (thePowersGang)
+ *
+ * nic.c
+ * - Acess -> TAP Wrapper
+ */
+#include <acess.h>
+#include <IPStack/include/adapters_api.h>
+#include <nettest.h>
+
+// === CONSTANTS ===
+static const int MTU = 1520;
+
+// === PROTOTYPES ===
+void   NativeNic_int_FreePacket(void *Ptr, size_t pkt_length, size_t Unused, const void *DataPtr);
+tIPStackBuffer *NativeNic_WaitForPacket(void *Ptr);
+ int   NativeNic_SendPacket(void *Ptr, tIPStackBuffer *Buffer);
+
+// === GLOBALS ===
+tIPStack_AdapterType   gNativeNIC_AdapterType = {
+       .Name = "NativeNIC",
+       .Type = 0,      // TODO: Differentiate differnet wire protos and speeds
+       .Flags = 0,     // TODO: IP checksum offloading, MAC checksum offloading etc
+       .SendPacket = NativeNic_SendPacket,
+       .WaitForPacket = NativeNic_WaitForPacket
+       };
+
+// === CODE ===
+int NativeNic_AddDev(char *DevDesc)
+{
+       Uint8   macaddr[6];
+       char *colonpos = strchr(DevDesc, ':');
+       if( !colonpos )
+               return -1;
+       *colonpos = 0;
+       if( UnHex(macaddr, 6, DevDesc) != 6 )
+               return -1;
+       void *ptr = NetTest_OpenTap(colonpos+1);
+       if( !ptr )
+               return 1;
+       IPStack_Adapter_Add(&gNativeNIC_AdapterType, ptr, macaddr);
+       
+       return 0;
+}
+
+void NativeNic_int_FreePacket(void *Ptr, size_t pkt_length, size_t Unused, const void *DataPtr)
+{
+       free( (void*)DataPtr );
+}
+
+tIPStackBuffer *NativeNic_WaitForPacket(void *Ptr)
+{
+       char    *buf = malloc( MTU );
+       size_t  len;
+
+       len = NetTest_ReadPacket(Ptr, MTU, buf);
+
+       tIPStackBuffer  *ret = IPStack_Buffer_CreateBuffer(1);
+       IPStack_Buffer_AppendSubBuffer(ret, len, 0, buf, NativeNic_int_FreePacket, Ptr);
+       return ret;
+}
+
+int NativeNic_SendPacket(void *Ptr, tIPStackBuffer *Buffer)
+{
+       size_t  len = IPStack_Buffer_GetLength(Buffer);
+       
+       // Check against MTU
+       if( len > MTU )
+               return -1;
+       
+       // Serialise into stack
+       char    buf[len];
+       IPStack_Buffer_GetData(Buffer, buf, len);
+       
+       NetTest_WritePacket(Ptr, len, buf);
+       return 0;
+}