# rule: fix 32-bit platforms don't support adding rules with a mark value of 0x80000000/0xF0000000 ~ 0xF0000000/0xF0000000

The maximum value for an `int` type on a 32-bit platform is 0x7FFFFFFF. Since 0xF0000000 exceeds this limit, we need to use `uint` instead of `int` to handle these values.

route_linux.go

@@ -1521,7 +1521,7 @@ type RouteGetOptions struct {
 	VrfName  string
 	SrcAddr  net.IP
 	UID      *uint32
-	Mark     int
+	Mark     uint32
 	FIBMatch bool
 }
 
@@ -1630,7 +1630,7 @@ func (h *Handle) RouteGetWithOptions(destination net.IP, options *RouteGetOption
 
 		if options.Mark > 0 {
 			b := make([]byte, 4)
-			native.PutUint32(b, uint32(options.Mark))
+			native.PutUint32(b, options.Mark)
 
 			req.AddData(nl.NewRtAttr(unix.RTA_MARK, b))
 		}