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126af9dffc
If the gateway address would be nil which is the case on macOS, we return the preferredSrc added tests for getExistingRIBRouteGateway function update log message
112 lines
3.5 KiB
Go
112 lines
3.5 KiB
Go
package routemanager
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import (
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"fmt"
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"github.com/netbirdio/netbird/iface"
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"github.com/stretchr/testify/require"
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"net"
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"net/netip"
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"testing"
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)
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func TestAddRemoveRoutes(t *testing.T) {
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testCases := []struct {
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name string
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prefix netip.Prefix
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shouldRouteToWireguard bool
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shouldBeRemoved bool
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}{
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{
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name: "Should Add And Remove Route",
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prefix: netip.MustParsePrefix("100.66.120.0/24"),
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shouldRouteToWireguard: true,
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shouldBeRemoved: true,
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},
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{
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name: "Should Not Add Or Remove Route",
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prefix: netip.MustParsePrefix("127.0.0.1/32"),
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shouldRouteToWireguard: false,
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shouldBeRemoved: false,
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},
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}
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for n, testCase := range testCases {
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t.Run(testCase.name, func(t *testing.T) {
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wgInterface, err := iface.NewWGIFace(fmt.Sprintf("utun53%d", n), "100.65.75.2/24", iface.DefaultMTU)
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require.NoError(t, err, "should create testing WGIface interface")
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defer wgInterface.Close()
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err = wgInterface.Create()
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require.NoError(t, err, "should create testing wireguard interface")
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err = addToRouteTableIfNoExists(testCase.prefix, wgInterface.GetAddress().IP.String())
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require.NoError(t, err, "should not return err")
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prefixGateway, err := getExistingRIBRouteGateway(testCase.prefix)
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require.NoError(t, err, "should not return err")
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if testCase.shouldRouteToWireguard {
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require.Equal(t, wgInterface.GetAddress().IP.String(), prefixGateway.String(), "route should point to wireguard interface IP")
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} else {
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require.NotEqual(t, wgInterface.GetAddress().IP.String(), prefixGateway.String(), "route should point to a different interface")
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}
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err = removeFromRouteTableIfNonSystem(testCase.prefix, wgInterface.GetAddress().IP.String())
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require.NoError(t, err, "should not return err")
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prefixGateway, err = getExistingRIBRouteGateway(testCase.prefix)
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require.NoError(t, err, "should not return err")
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internetGateway, err := getExistingRIBRouteGateway(netip.MustParsePrefix("0.0.0.0/0"))
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require.NoError(t, err)
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if testCase.shouldBeRemoved {
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require.Equal(t, internetGateway, prefixGateway, "route should be pointing to default internet gateway")
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} else {
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require.NotEqual(t, internetGateway, prefixGateway, "route should be pointing to a different gateway than the internet gateway")
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}
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})
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}
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}
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func TestGetExistingRIBRouteGateway(t *testing.T) {
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gateway, err := getExistingRIBRouteGateway(netip.MustParsePrefix("0.0.0.0/0"))
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if err != nil {
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t.Fatal("shouldn't return error when fetching the gateway: ", err)
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}
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if gateway == nil {
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t.Fatal("should return a gateway")
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}
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addresses, err := net.InterfaceAddrs()
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if err != nil {
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t.Fatal("shouldn't return error when fetching interface addresses: ", err)
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}
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var testingIP string
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var testingPrefix netip.Prefix
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for _, address := range addresses {
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if address.Network() != "ip+net" {
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continue
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}
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prefix := netip.MustParsePrefix(address.String())
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if !prefix.Addr().IsLoopback() && prefix.Addr().Is4() {
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testingIP = prefix.Addr().String()
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testingPrefix = prefix.Masked()
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break
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}
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}
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localIP, err := getExistingRIBRouteGateway(testingPrefix)
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if err != nil {
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t.Fatal("shouldn't return error: ", err)
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}
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if localIP == nil {
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t.Fatal("should return a gateway for local network")
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}
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if localIP.String() == gateway.String() {
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t.Fatal("local ip should not match with gateway IP")
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}
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if localIP.String() != testingIP {
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t.Fatalf("local ip should match with testing IP: want %s got %s", testingIP, localIP.String())
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}
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}
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