Add freebsd test workflow (#2127)

.github/workflows/golang-test-freebsd.yml

@@ -0,0 +1,39 @@
+
+name: Test Code FreeBSD
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.head_ref || github.actor_id }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Test in FreeBSD
+        id: test
+        uses: vmactions/freebsd-vm@v1
+        with:
+          usesh: true
+          prepare: |
+            pkg install -y curl
+            pkg install -y git
+
+          run: |
+            set -x
+            curl -o go.tar.gz https://go.dev/dl/go1.21.11.freebsd-amd64.tar.gz -L
+            tar zxf go.tar.gz
+            mv go /usr/local/go
+            ln -s /usr/local/go/bin/go /usr/local/bin/go
+            go mod tidy
+            go test -timeout 5m -p 1 ./iface/...
+            go test -timeout 5m -p 1 ./client/... 
+            cd client
+            go build .
+            cd ..

client/internal/engine_test.go

@@ -58,9 +58,9 @@ var (
 )
 
 func TestEngine_SSH(t *testing.T) {
-
+	// todo resolve test execution on freebsd
-	if runtime.GOOS == "windows" {
+	if runtime.GOOS == "windows" || runtime.GOOS == "freebsd" {
-		t.Skip("skipping TestEngine_SSH on Windows")
+		t.Skip("skipping TestEngine_SSH")
 	}
 
 	key, err := wgtypes.GeneratePrivateKey()

client/internal/routemanager/manager_test.go

@@ -436,7 +436,7 @@ func TestManagerUpdateRoutes(t *testing.T) {
 			require.NoError(t, err, "should update routes")
 
 			expectedWatchers := testCase.clientNetworkWatchersExpected
-			if (runtime.GOOS == "linux" || runtime.GOOS == "windows" || runtime.GOOS == "darwin") && testCase.clientNetworkWatchersExpectedAllowed != 0 {
+			if testCase.clientNetworkWatchersExpectedAllowed != 0 {
 				expectedWatchers = testCase.clientNetworkWatchersExpectedAllowed
 			}
 			require.Len(t, routeManager.clientNetworks, expectedWatchers, "client networks size should match")

client/internal/routemanager/systemops/systemops_bsd_test.go

@@ -3,12 +3,73 @@
 package systemops
 
 import (
+	"fmt"
+	"net"
+	"net/netip"
+	"os/exec"
+	"regexp"
+	"sync"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 	"golang.org/x/net/route"
 )
 
+var expectedVPNint = "utun100"
+var expectedExternalInt = "lo0"
+var expectedInternalInt = "lo0"
+
+func init() {
+	testCases = append(testCases, []testCase{
+		{
+			name:              "To more specific route without custom dialer via vpn",
+			destination:       "10.10.0.2:53",
+			expectedInterface: expectedVPNint,
+			dialer:            &net.Dialer{},
+			expectedPacket:    createPacketExpectation("100.64.0.1", 12345, "10.10.0.2", 53),
+		},
+	}...)
+}
+
+func TestConcurrentRoutes(t *testing.T) {
+	baseIP := netip.MustParseAddr("192.0.2.0")
+	intf := &net.Interface{Name: "lo0"}
+
+	r := NewSysOps(nil)
+
+	var wg sync.WaitGroup
+	for i := 0; i < 1024; i++ {
+		wg.Add(1)
+		go func(ip netip.Addr) {
+			defer wg.Done()
+			prefix := netip.PrefixFrom(ip, 32)
+			if err := r.addToRouteTable(prefix, Nexthop{netip.Addr{}, intf}); err != nil {
+				t.Errorf("Failed to add route for %s: %v", prefix, err)
+			}
+		}(baseIP)
+		baseIP = baseIP.Next()
+	}
+
+	wg.Wait()
+
+	baseIP = netip.MustParseAddr("192.0.2.0")
+
+	for i := 0; i < 1024; i++ {
+		wg.Add(1)
+		go func(ip netip.Addr) {
+			defer wg.Done()
+			prefix := netip.PrefixFrom(ip, 32)
+			if err := r.removeFromRouteTable(prefix, Nexthop{netip.Addr{}, intf}); err != nil {
+				t.Errorf("Failed to remove route for %s: %v", prefix, err)
+			}
+		}(baseIP)
+		baseIP = baseIP.Next()
+	}
+
+	wg.Wait()
+}
+
 func TestBits(t *testing.T) {
 	tests := []struct {
 		name    string
@@ -55,3 +116,73 @@ func TestBits(t *testing.T) {
 		})
 	}
 }
+
+func createAndSetupDummyInterface(t *testing.T, intf string, ipAddressCIDR string) string {
+	t.Helper()
+
+	err := exec.Command("ifconfig", intf, "alias", ipAddressCIDR).Run()
+	require.NoError(t, err, "Failed to create loopback alias")
+
+	t.Cleanup(func() {
+		err := exec.Command("ifconfig", intf, ipAddressCIDR, "-alias").Run()
+		assert.NoError(t, err, "Failed to remove loopback alias")
+	})
+
+	return "lo0"
+}
+
+func addDummyRoute(t *testing.T, dstCIDR string, gw net.IP, _ string) {
+	t.Helper()
+
+	var originalNexthop net.IP
+	if dstCIDR == "0.0.0.0/0" {
+		var err error
+		originalNexthop, err = fetchOriginalGateway()
+		if err != nil {
+			t.Logf("Failed to fetch original gateway: %v", err)
+		}
+
+		if output, err := exec.Command("route", "delete", "-net", dstCIDR).CombinedOutput(); err != nil {
+			t.Logf("Failed to delete route: %v, output: %s", err, output)
+		}
+	}
+
+	t.Cleanup(func() {
+		if originalNexthop != nil {
+			err := exec.Command("route", "add", "-net", dstCIDR, originalNexthop.String()).Run()
+			assert.NoError(t, err, "Failed to restore original route")
+		}
+	})
+
+	err := exec.Command("route", "add", "-net", dstCIDR, gw.String()).Run()
+	require.NoError(t, err, "Failed to add route")
+
+	t.Cleanup(func() {
+		err := exec.Command("route", "delete", "-net", dstCIDR).Run()
+		assert.NoError(t, err, "Failed to remove route")
+	})
+}
+
+func fetchOriginalGateway() (net.IP, error) {
+	output, err := exec.Command("route", "-n", "get", "default").CombinedOutput()
+	if err != nil {
+		return nil, err
+	}
+
+	matches := regexp.MustCompile(`gateway: (\S+)`).FindStringSubmatch(string(output))
+	if len(matches) == 0 {
+		return nil, fmt.Errorf("gateway not found")
+	}
+
+	return net.ParseIP(matches[1]), nil
+}
+
+func setupDummyInterfacesAndRoutes(t *testing.T) {
+	t.Helper()
+
+	defaultDummy := createAndSetupDummyInterface(t, expectedExternalInt, "192.168.0.1/24")
+	addDummyRoute(t, "0.0.0.0/0", net.IPv4(192, 168, 0, 1), defaultDummy)
+
+	otherDummy := createAndSetupDummyInterface(t, expectedInternalInt, "192.168.1.1/24")
+	addDummyRoute(t, "10.0.0.0/8", net.IPv4(192, 168, 1, 1), otherDummy)
+}

client/internal/routemanager/systemops/systemops_darwin_test.go

@@ -1,140 +0,0 @@
-//go:build !ios
-
-package systemops
-
-import (
-	"fmt"
-	"net"
-	"net/netip"
-	"os/exec"
-	"regexp"
-	"sync"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-var expectedVPNint = "utun100"
-var expectedExternalInt = "lo0"
-var expectedInternalInt = "lo0"
-
-func init() {
-	testCases = append(testCases, []testCase{
-		{
-			name:              "To more specific route without custom dialer via vpn",
-			destination:       "10.10.0.2:53",
-			expectedInterface: expectedVPNint,
-			dialer:            &net.Dialer{},
-			expectedPacket:    createPacketExpectation("100.64.0.1", 12345, "10.10.0.2", 53),
-		},
-	}...)
-}
-
-func TestConcurrentRoutes(t *testing.T) {
-	baseIP := netip.MustParseAddr("192.0.2.0")
-	intf := &net.Interface{Name: "lo0"}
-
-	r := NewSysOps(nil)
-
-	var wg sync.WaitGroup
-	for i := 0; i < 1024; i++ {
-		wg.Add(1)
-		go func(ip netip.Addr) {
-			defer wg.Done()
-			prefix := netip.PrefixFrom(ip, 32)
-			if err := r.addToRouteTable(prefix, Nexthop{netip.Addr{}, intf}); err != nil {
-				t.Errorf("Failed to add route for %s: %v", prefix, err)
-			}
-		}(baseIP)
-		baseIP = baseIP.Next()
-	}
-
-	wg.Wait()
-
-	baseIP = netip.MustParseAddr("192.0.2.0")
-
-	for i := 0; i < 1024; i++ {
-		wg.Add(1)
-		go func(ip netip.Addr) {
-			defer wg.Done()
-			prefix := netip.PrefixFrom(ip, 32)
-			if err := r.removeFromRouteTable(prefix, Nexthop{netip.Addr{}, intf}); err != nil {
-				t.Errorf("Failed to remove route for %s: %v", prefix, err)
-			}
-		}(baseIP)
-		baseIP = baseIP.Next()
-	}
-
-	wg.Wait()
-}
-
-func createAndSetupDummyInterface(t *testing.T, intf string, ipAddressCIDR string) string {
-	t.Helper()
-
-	err := exec.Command("ifconfig", intf, "alias", ipAddressCIDR).Run()
-	require.NoError(t, err, "Failed to create loopback alias")
-
-	t.Cleanup(func() {
-		err := exec.Command("ifconfig", intf, ipAddressCIDR, "-alias").Run()
-		assert.NoError(t, err, "Failed to remove loopback alias")
-	})
-
-	return "lo0"
-}
-
-func addDummyRoute(t *testing.T, dstCIDR string, gw net.IP, _ string) {
-	t.Helper()
-
-	var originalNexthop net.IP
-	if dstCIDR == "0.0.0.0/0" {
-		var err error
-		originalNexthop, err = fetchOriginalGateway()
-		if err != nil {
-			t.Logf("Failed to fetch original gateway: %v", err)
-		}
-
-		if output, err := exec.Command("route", "delete", "-net", dstCIDR).CombinedOutput(); err != nil {
-			t.Logf("Failed to delete route: %v, output: %s", err, output)
-		}
-	}
-
-	t.Cleanup(func() {
-		if originalNexthop != nil {
-			err := exec.Command("route", "add", "-net", dstCIDR, originalNexthop.String()).Run()
-			assert.NoError(t, err, "Failed to restore original route")
-		}
-	})
-
-	err := exec.Command("route", "add", "-net", dstCIDR, gw.String()).Run()
-	require.NoError(t, err, "Failed to add route")
-
-	t.Cleanup(func() {
-		err := exec.Command("route", "delete", "-net", dstCIDR).Run()
-		assert.NoError(t, err, "Failed to remove route")
-	})
-}
-
-func fetchOriginalGateway() (net.IP, error) {
-	output, err := exec.Command("route", "-n", "get", "default").CombinedOutput()
-	if err != nil {
-		return nil, err
-	}
-
-	matches := regexp.MustCompile(`gateway: (\S+)`).FindStringSubmatch(string(output))
-	if len(matches) == 0 {
-		return nil, fmt.Errorf("gateway not found")
-	}
-
-	return net.ParseIP(matches[1]), nil
-}
-
-func setupDummyInterfacesAndRoutes(t *testing.T) {
-	t.Helper()
-
-	defaultDummy := createAndSetupDummyInterface(t, expectedExternalInt, "192.168.0.1/24")
-	addDummyRoute(t, "0.0.0.0/0", net.IPv4(192, 168, 0, 1), defaultDummy)
-
-	otherDummy := createAndSetupDummyInterface(t, expectedInternalInt, "192.168.1.1/24")
-	addDummyRoute(t, "10.0.0.0/8", net.IPv4(192, 168, 1, 1), otherDummy)
-}

client/internal/routemanager/systemops/systemops_generic_test.go

@@ -49,6 +49,10 @@ func TestAddRemoveRoutes(t *testing.T) {
 	}
 
 	for n, testCase := range testCases {
+		// todo resolve test execution on freebsd
+		if runtime.GOOS == "freebsd" {
+			t.Skip("skipping ", testCase.name, " on freebsd")
+		}
 		t.Run(testCase.name, func(t *testing.T) {
 			t.Setenv("NB_DISABLE_ROUTE_CACHE", "true")
 
@@ -107,6 +111,9 @@ func TestAddRemoveRoutes(t *testing.T) {
 }
 
 func TestGetNextHop(t *testing.T) {
+	if runtime.GOOS == "freebsd" {
+		t.Skip("skipping on freebsd")
+	}
 	nexthop, err := GetNextHop(netip.MustParseAddr("0.0.0.0"))
 	if err != nil {
 		t.Fatal("shouldn't return error when fetching the gateway: ", err)
@@ -300,20 +307,23 @@ func TestExistsInRouteTable(t *testing.T) {
 	var addressPrefixes []netip.Prefix
 	for _, address := range addresses {
 		p := netip.MustParsePrefix(address.String())
-		if p.Addr().Is6() {
-			continue
-		}
-		// Windows sometimes has hidden interface link local addrs that don't turn up on any interface
-		if runtime.GOOS == "windows" && p.Addr().IsLinkLocalUnicast() {
-			continue
-		}
-		// Linux loopback 127/8 is in the local table, not in the main table and always takes precedence
-		if runtime.GOOS == "linux" && p.Addr().IsLoopback() {
-			continue
-		}
 
+		switch {
+		case p.Addr().Is6():
+			continue
+		// Windows sometimes has hidden interface link local addrs that don't turn up on any interface
+		case runtime.GOOS == "windows" && p.Addr().IsLinkLocalUnicast():
+			continue
+		// Linux loopback 127/8 is in the local table, not in the main table and always takes precedence
+		case runtime.GOOS == "linux" && p.Addr().IsLoopback():
+			continue
+		// FreeBSD loopback 127/8 is not added to the routing table
+		case runtime.GOOS == "freebsd" && p.Addr().IsLoopback():
+			continue
+		default:
 			addressPrefixes = append(addressPrefixes, p.Masked())
 		}
+	}
 
 	for _, prefix := range addressPrefixes {
 		exists, err := existsInRouteTable(prefix)

client/internal/routemanager/systemops/systemops_unix_test.go

@@ -5,6 +5,7 @@ package systemops
 import (
 	"fmt"
 	"net"
+	"runtime"
 	"strings"
 	"testing"
 	"time"
@@ -85,6 +86,10 @@ var testCases = []testCase{
 
 func TestRouting(t *testing.T) {
 	for _, tc := range testCases {
+		// todo resolve test execution on freebsd
+		if runtime.GOOS == "freebsd" {
+			t.Skip("skipping ", tc.name, " on freebsd")
+		}
 		t.Run(tc.name, func(t *testing.T) {
 			setupTestEnv(t)
 

client/ui/route.go

@@ -1,4 +1,4 @@
-//go:build !(linux && 386)
+//go:build !(linux && 386) && !freebsd
 
 package main