Add v2 network package

network/v2/sockopts.go

@@ -0,0 +1,27 @@
+package network
+
+import (
+	"fmt"
+	"net"
+)
+
+func setCommonSocketOptions(conn *net.TCPConn) error {
+	if err := conn.SetKeepAlivePeriod(DefaultTCPKeepAlivePeriod); err != nil {
+		return fmt.Errorf("cannot set time period of TCP keepalive probes: %w", err)
+	}
+
+	if err := conn.SetLinger(tcpLingerTimeout); err != nil {
+		return fmt.Errorf("cannot set TCP linger timeout: %w", err)
+	}
+
+	rawConn, err := conn.SyscallConn()
+	if err != nil {
+		return fmt.Errorf("cannot get underlying raw connection: %w", err)
+	}
+
+	if err := setSocketReuseAddrPort(rawConn); err != nil {
+		return fmt.Errorf("cannot setup SO_REUSEADDR/PORT: %w", err)
+	}
+
+	return nil
+}