Add new TCPBufferSize parameter to network

network/load_balanced_socks5.go

@@ -9,13 +9,18 @@ import (
 )
 
 type loadBalancedSocks5Dialer struct {
-	dialers []Dialer
+	dialers    []Dialer
+	bufferSize int
 }
 
 func (l loadBalancedSocks5Dialer) Dial(network, address string) (net.Conn, error) {
 	return l.DialContext(context.Background(), network, address)
 }
 
+func (l loadBalancedSocks5Dialer) TCPBufferSize() int {
+	return l.bufferSize
+}
+
 func (l loadBalancedSocks5Dialer) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
 	length := len(l.dialers)
 	start := rand.Intn(length)
@@ -45,6 +50,7 @@ func NewLoadBalancedSocks5Dialer(baseDialer Dialer, proxyURLs []*url.URL) (Diale
 	}
 
 	return loadBalancedSocks5Dialer{
-		dialers: dialers,
+		dialers:    dialers,
+		bufferSize: baseDialer.TCPBufferSize(),
 	}, nil
 }