实现基础的DDoS防护

internal/firewalls/nftables/set_test.go

@@ -0,0 +1,110 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package nftables_test
+
+import (
+	"errors"
+	"github.com/TeaOSLab/EdgeNode/internal/firewalls/nftables"
+	"github.com/iwind/TeaGo/types"
+	"github.com/mdlayher/netlink"
+	"net"
+	"testing"
+	"time"
+)
+
+func getIPv4Set(t *testing.T) *nftables.Set {
+	var table = getIPv4Table(t)
+	set, err := table.GetSet("test_ipv4_set")
+	if err != nil {
+		if err == nftables.ErrSetNotFound {
+			set, err = table.AddSet("test_ipv4_set", &nftables.SetOptions{
+				KeyType:    nftables.TypeIPAddr,
+				HasTimeout: true,
+			})
+			if err != nil {
+				t.Fatal(err)
+			}
+		} else {
+			t.Fatal(err)
+		}
+	}
+	return set
+}
+
+func TestSet_AddElement(t *testing.T) {
+	var set = getIPv4Set(t)
+	err := set.AddElement(net.ParseIP("192.168.2.31").To4(), &nftables.ElementOptions{Timeout: 86400 * time.Second})
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("ok")
+}
+
+func TestSet_DeleteElement(t *testing.T) {
+	var set = getIPv4Set(t)
+	err := set.DeleteElement(net.ParseIP("192.168.2.31").To4())
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("ok")
+}
+
+func TestSet_Batch(t *testing.T) {
+	var batch = getIPv4Set(t).Batch()
+
+	for _, ip := range []string{"192.168.2.30", "192.168.2.31", "192.168.2.32", "192.168.2.33", "192.168.2.34"} {
+		var ipData = net.ParseIP(ip).To4()
+		//err := batch.DeleteElement(ipData)
+		//if err != nil {
+		//	t.Fatal(err)
+		//}
+		err := batch.AddElement(ipData, &nftables.ElementOptions{Timeout: 10 * time.Second})
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	err := batch.Commit()
+	if err != nil {
+		t.Logf("%#v", errors.Unwrap(err).(*netlink.OpError))
+		t.Fatal(err)
+	}
+	t.Log("ok")
+}
+
+func TestSet_Add_Many(t *testing.T) {
+	var set = getIPv4Set(t)
+
+	for i := 0; i < 255; i++ {
+		t.Log(i)
+		for j := 0; j < 255; j++ {
+			var ip = "192.167." + types.String(i) + "." + types.String(j)
+			var ipData = net.ParseIP(ip).To4()
+			err := set.Batch().AddElement(ipData, &nftables.ElementOptions{Timeout: 3600 * time.Second})
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			if j%10 == 0 {
+				err = set.Batch().Commit()
+				if err != nil {
+					t.Fatal(err)
+				}
+			}
+		}
+		err := set.Batch().Commit()
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+	t.Log("ok")
+}
+
+/**func TestSet_Flush(t *testing.T) {
+	var set = getIPv4Set(t)
+	err := set.Flush()
+	if err != nil {
+		t.Fatal(err)
+	}
+	t.Log("ok")
+}**/