test case for socket opt

transport/internet/udp/hub_linux_test.go

@@ -0,0 +1,41 @@
+// +build linux
+
+package udp_test
+
+import (
+	"runtime"
+	"syscall"
+	"testing"
+
+	"github.com/v2ray/v2ray-core/common/alloc"
+	v2net "github.com/v2ray/v2ray-core/common/net"
+	"github.com/v2ray/v2ray-core/proxy"
+	"github.com/v2ray/v2ray-core/testing/assert"
+	"github.com/v2ray/v2ray-core/transport/internet"
+	. "github.com/v2ray/v2ray-core/transport/internet/udp"
+)
+
+func TestHubSocksOption(t *testing.T) {
+	assert := assert.On(t)
+
+	hub, err := ListenUDP(v2net.LocalHostIP, v2net.Port(0), ListenOption{
+		Callback:            func(*alloc.Buffer, *proxy.SessionInfo) {},
+		ReceiveOriginalDest: true,
+	})
+	assert.Error(err).IsNil()
+	conn := hub.Connection()
+
+	sysfd, ok := conn.(internet.SysFd)
+	assert.Bool(ok).IsTrue()
+
+	fd, err := sysfd.SysFd()
+	assert.Error(err).IsNil()
+
+	v, err := syscall.GetsockoptInt(fd, syscall.SOL_IP, syscall.IP_TRANSPARENT)
+	assert.Error(err).IsNil()
+	assert.Int(v).Equals(1)
+
+	v, err = syscall.GetsockoptInt(fd, syscall.SOL_IP, syscall.IP_RECVORIGDSTADDR)
+	assert.Error(err).IsNil()
+	assert.Int(v).Equals(1)
+}