ws2_32: Move the setsockopt(IP_DROP_SOURCE_MEMBERSHIP) implementation to ntdll.

dlls/ntdll/unix/socket.c

@@ -1739,6 +1739,9 @@ NTSTATUS sock_ioctl( HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc, void *apc
         case IOCTL_AFD_WINE_SET_IP_DROP_MEMBERSHIP:
             return do_setsockopt( handle, io, IPPROTO_IP, IP_DROP_MEMBERSHIP, in_buffer, in_size );
 
+        case IOCTL_AFD_WINE_SET_IP_DROP_SOURCE_MEMBERSHIP:
+            return do_setsockopt( handle, io, IPPROTO_IP, IP_DROP_SOURCE_MEMBERSHIP, in_buffer, in_size );
+
         default:
         {
             if ((code >> 16) == FILE_DEVICE_NETWORK)

dlls/ws2_32/socket.c

@@ -3641,6 +3641,8 @@ int WINAPI WS_setsockopt(SOCKET s, int level, int optname,
             return server_setsockopt( s, IOCTL_AFD_WINE_SET_IP_DROP_MEMBERSHIP, optval, optlen );
 
         case WS_IP_DROP_SOURCE_MEMBERSHIP:
+            return server_setsockopt( s, IOCTL_AFD_WINE_SET_IP_DROP_SOURCE_MEMBERSHIP, optval, optlen );
+
         case WS_IP_UNBLOCK_SOURCE:
         {
             WS_IP_MREQ_SOURCE* val = (void*)optval;

include/wine/afd.h

@@ -187,6 +187,7 @@ struct afd_get_events_params
 #define IOCTL_AFD_WINE_GET_IP_DONTFRAGMENT              WINE_AFD_IOC(242)
 #define IOCTL_AFD_WINE_SET_IP_DONTFRAGMENT              WINE_AFD_IOC(243)
 #define IOCTL_AFD_WINE_SET_IP_DROP_MEMBERSHIP           WINE_AFD_IOC(244)
+#define IOCTL_AFD_WINE_SET_IP_DROP_SOURCE_MEMBERSHIP    WINE_AFD_IOC(245)
 
 struct afd_create_params
 {