[TCPIP]

DispTdiQueryIpHwAddress(): use the correct function to get the interface associated with an IP address.
Also, because local links aren't in the ARP table (obviously), handle them without the mechanism described previously

This fixes arpinging oneself.

svn path=/trunk/; revision=70277

diff --git a/reactos/drivers/network/tcpip/tcpip/dispatch.c b/reactos/drivers/network/tcpip/tcpip/dispatch.c
index b57fbfa..847b435 100644 (file)
--- a/reactos/drivers/network/tcpip/tcpip/dispatch.c
+++ b/reactos/drivers/network/tcpip/tcpip/dispatch.c
@@ -1681,6 +1681,27 @@ NTSTATUS DispTdiQueryIpHwAddress( PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STA
     AddrInitIPv4(&Remote, IPs[0]);
     AddrInitIPv4(&Local, IPs[1]);
 
+    if (AddrIsUnspecified(&Remote)) {
+        Status = STATUS_UNSUCCESSFUL;
+        goto Exit;
+    }
+
+    Interface = AddrLocateInterface(&Remote);
+    if (Interface) {
+        PVOID OutputBuffer;
+
+        if (Interface->AddressLength > IrpSp->Parameters.DeviceIoControl.OutputBufferLength) {
+            Status = STATUS_INVALID_BUFFER_SIZE;
+            goto Exit;
+        }
+
+        OutputBuffer = Irp->AssociatedIrp.SystemBuffer;
+        RtlCopyMemory(OutputBuffer, Interface->Address, Interface->AddressLength);
+        Irp->IoStatus.Information = Interface->AddressLength;
+        Status = STATUS_SUCCESS;
+        goto Exit;
+    }
+
     if (AddrIsUnspecified(&Local)) {
         NCE = RouteGetRouteToDestination(&Remote);
         if (NCE == NULL) {
@@ -1691,7 +1712,7 @@ NTSTATUS DispTdiQueryIpHwAddress( PDEVICE_OBJECT DeviceObject, PIRP Irp, PIO_STA
         Interface = NCE->Interface;
     }
     else {
-        Interface = FindOnLinkInterface(&Local);
+        Interface = AddrLocateInterface(&Local);
         if (Interface == NULL) {
             Status = STATUS_NETWORK_UNREACHABLE;
             goto Exit;