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

dlls/ntdll/unix/socket.c

@@ -1736,6 +1736,9 @@ NTSTATUS sock_ioctl( HANDLE handle, HANDLE event, PIO_APC_ROUTINE apc, void *apc
         }
 #endif
 
+        case IOCTL_AFD_WINE_SET_IP_DROP_MEMBERSHIP:
+            return do_setsockopt( handle, io, IPPROTO_IP, IP_DROP_MEMBERSHIP, in_buffer, in_size );
+
         default:
         {
             if ((code >> 16) == FILE_DEVICE_NETWORK)

dlls/ws2_32/socket.c

@@ -3637,6 +3637,9 @@ int WINAPI WS_setsockopt(SOCKET s, int level, int optname,
         case WS_IP_DONTFRAGMENT:
             return server_setsockopt( s, IOCTL_AFD_WINE_SET_IP_DONTFRAGMENT, optval, optlen );
 
+        case WS_IP_DROP_MEMBERSHIP:
+            return server_setsockopt( s, IOCTL_AFD_WINE_SET_IP_DROP_MEMBERSHIP, optval, optlen );
+
         case WS_IP_DROP_SOURCE_MEMBERSHIP:
         case WS_IP_UNBLOCK_SOURCE:
         {
@@ -3651,7 +3654,6 @@ int WINAPI WS_setsockopt(SOCKET s, int level, int optname,
             convert_sockopt(&level, &optname);
             break;
         }
-        case WS_IP_DROP_MEMBERSHIP:
 #ifdef IP_HDRINCL
         case WS_IP_HDRINCL:
 #endif

include/wine/afd.h

@@ -186,6 +186,7 @@ struct afd_get_events_params
 #define IOCTL_AFD_WINE_SET_IP_BLOCK_SOURCE              WINE_AFD_IOC(241)
 #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)
 
 struct afd_create_params
 {