- upgrade dep etherconn to 0.4.0

- fix a issue that shouldn't use etherconn.WithDefaultReceival(true)
- fix a few lint issues

dhcplt.go

@@ -1174,7 +1174,7 @@ func createPktRelay(setup *testSetup) (etherconn.PacketRelay, error) {
 		relay, err := etherconn.NewRawSocketRelay(context.Background(),
 			setup.Ifname, etherconn.WithBPFFilter(bpfFilter),
 			etherconn.WithDebug(setup.Debug),
-			etherconn.WithDefaultReceival(true),
+			etherconn.WithDefaultReceival(false),
 			etherconn.WithSendChanDepth(10240),
 		)
 		if err != nil {

dhcplt_test.go

@@ -259,7 +259,7 @@ func TestDHCPv6(t *testing.T) {
 	// }
 	// DORAv6(setup, ccfgs)
 	testList := []testCase{
-		testCase{
+		{
 			desc: "single vlan, both PD and NA",
 			setup: &testSetup{
 				EnableV4:     false,
@@ -339,7 +339,7 @@ func TestDHCPv6(t *testing.T) {
 			},
 		},
 		///////////////////
-		testCase{
+		{
 			desc: "double vlan, both PD and NA",
 			setup: &testSetup{
 				EnableV4:     false,
@@ -427,7 +427,7 @@ func TestDHCPv6(t *testing.T) {
 			},
 		},
 		////////////////////
-		testCase{
+		{
 			desc: "single vlan, PD only",
 			setup: &testSetup{
 				EnableV4:     false,
@@ -507,7 +507,7 @@ func TestDHCPv6(t *testing.T) {
 			},
 		},
 		////////////////////////
-		testCase{
+		{
 			desc: "double vlan, NA only",
 			setup: &testSetup{
 				EnableV4:     false,
@@ -595,7 +595,7 @@ func TestDHCPv6(t *testing.T) {
 			},
 		},
 		////////////////////
-		testCase{
+		{
 			desc: "double vlan, both PD and NA, relayed",
 			setup: &testSetup{
 				EnableV4:     false,
@@ -707,7 +707,7 @@ func TestDHCPv6(t *testing.T) {
 
 func TestDHCPLT(t *testing.T) {
 	testList := []testCase{
-		testCase{
+		{
 			setup: &testSetup{
 				Debug:        true,
 				Ifname:       "C",
@@ -774,7 +774,7 @@ func TestDHCPLT(t *testing.T) {
 		},
 
 		//two vlans
-		testCase{
+		{
 			setup: &testSetup{
 				Ifname:       "C",
 				Debug:        true,
@@ -848,7 +848,7 @@ func TestDHCPLT(t *testing.T) {
 		},
 
 		//negative case, wrong vlans
-		testCase{
+		{
 			setup: &testSetup{
 				Ifname:       "C",
 				NumOfClients: 10,

go.mod

@@ -0,0 +1,17 @@
+module github.com/hujun-open/dhcplt
+
+go 1.16
+
+require (
+	github.com/cilium/ebpf v0.8.1 // indirect
+	github.com/google/gopacket v1.1.19
+	github.com/hujun-open/cmprule v0.3.0
+	github.com/hujun-open/etherconn v0.4.0
+	github.com/hujun-open/myaddr v0.1.1
+	github.com/insomniacslk/dhcp v0.0.0-20210428091707-95b2ff6905c9
+	github.com/safchain/ethtool v0.1.0 // indirect
+	github.com/vishvananda/netlink v1.1.0
+	github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 // indirect
+	golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd // indirect
+	golang.org/x/sys v0.0.0-20220224120231-95c6836cb0e7 // indirect
+)

ndproxy.go

@@ -43,7 +43,7 @@ func (proxy *NDPProxy) processReq(pbuf []byte, peermac net.HardwareAddr) {
 				TargetAddress: req.TargetAddress,
 				Flags:         0b01000000,
 				Options: []layers.ICMPv6Option{
-					layers.ICMPv6Option{
+					{
 						Type: layers.ICMPv6OptTargetAddress,
 						Data: []byte(l2ep.HwAddr),
 					},