2022-10-26 05:31:30 -06:00
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package integration
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import (
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"fmt"
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2022-11-21 05:56:18 -07:00
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"strings"
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2022-10-26 05:31:30 -06:00
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"testing"
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"time"
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2022-10-26 05:31:30 -06:00
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"github.com/juanfont/headscale"
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2022-11-11 05:20:12 -07:00
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"github.com/juanfont/headscale/integration/hsic"
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"github.com/juanfont/headscale/integration/tsic"
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"github.com/stretchr/testify/assert"
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)
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2022-11-19 04:41:12 -07:00
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var retry = func(times int, sleepInterval time.Duration,
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doWork func() (string, string, error),
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) (string, string, error) {
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var result string
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var stderr string
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var err error
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for attempts := 0; attempts < times; attempts++ {
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tempResult, tempStderr, err := doWork()
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result += tempResult
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stderr += tempStderr
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if err == nil {
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return result, stderr, nil
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}
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2022-11-21 06:08:24 -07:00
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// If we get a permission denied error, we can fail immediately
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// since that is something we wont recover from by retrying.
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if err != nil && strings.Contains(stderr, "Permission denied (tailscale)") {
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return result, stderr, err
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}
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time.Sleep(sleepInterval)
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}
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2022-11-19 04:41:12 -07:00
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return result, stderr, err
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}
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2023-01-17 09:43:44 -07:00
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func TestSSHOneUserAllToAll(t *testing.T) {
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IntegrationSkip(t)
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t.Parallel()
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2022-10-26 05:31:30 -06:00
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scenario, err := NewScenario()
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if err != nil {
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t.Errorf("failed to create scenario: %s", err)
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}
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spec := map[string]int{
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"user1": len(TailscaleVersions) - 5,
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}
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err = scenario.CreateHeadscaleEnv(spec,
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[]tsic.Option{tsic.WithSSH()},
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hsic.WithACLPolicy(
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&headscale.ACLPolicy{
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Groups: map[string][]string{
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"group:integration-test": {"user1"},
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},
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ACLs: []headscale.ACL{
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{
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Action: "accept",
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Sources: []string{"*"},
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Destinations: []string{"*:*"},
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},
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},
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SSHs: []headscale.SSH{
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{
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Action: "accept",
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Sources: []string{"group:integration-test"},
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Destinations: []string{"group:integration-test"},
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Users: []string{"ssh-it-user"},
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},
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},
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},
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),
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hsic.WithConfigEnv(map[string]string{
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"HEADSCALE_EXPERIMENTAL_FEATURE_SSH": "1",
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}),
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)
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if err != nil {
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t.Errorf("failed to create headscale environment: %s", err)
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}
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allClients, err := scenario.ListTailscaleClients()
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if err != nil {
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t.Errorf("failed to get clients: %s", err)
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}
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2022-10-26 05:31:30 -06:00
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err = scenario.WaitForTailscaleSync()
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if err != nil {
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t.Errorf("failed wait for tailscale clients to be in sync: %s", err)
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}
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2022-11-08 08:10:03 -07:00
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_, err = scenario.ListTailscaleClientsFQDNs()
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if err != nil {
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t.Errorf("failed to get FQDNs: %s", err)
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}
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for _, client := range allClients {
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for _, peer := range allClients {
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if client.Hostname() == peer.Hostname() {
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continue
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}
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assertSSHHostname(t, client, peer)
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}
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}
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err = scenario.Shutdown()
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if err != nil {
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t.Errorf("failed to tear down scenario: %s", err)
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}
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}
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2023-01-17 09:43:44 -07:00
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func TestSSHMultipleUsersAllToAll(t *testing.T) {
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IntegrationSkip(t)
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t.Parallel()
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scenario, err := NewScenario()
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if err != nil {
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t.Errorf("failed to create scenario: %s", err)
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}
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spec := map[string]int{
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"user1": len(TailscaleVersions) - 5,
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"user2": len(TailscaleVersions) - 5,
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}
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err = scenario.CreateHeadscaleEnv(spec,
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[]tsic.Option{tsic.WithSSH()},
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hsic.WithACLPolicy(
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&headscale.ACLPolicy{
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Groups: map[string][]string{
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"group:integration-test": {"user1", "user2"},
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},
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ACLs: []headscale.ACL{
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{
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Action: "accept",
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Sources: []string{"*"},
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Destinations: []string{"*:*"},
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},
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},
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SSHs: []headscale.SSH{
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{
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Action: "accept",
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Sources: []string{"group:integration-test"},
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Destinations: []string{"group:integration-test"},
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Users: []string{"ssh-it-user"},
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},
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},
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},
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),
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hsic.WithConfigEnv(map[string]string{
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"HEADSCALE_EXPERIMENTAL_FEATURE_SSH": "1",
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}),
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)
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if err != nil {
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t.Errorf("failed to create headscale environment: %s", err)
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}
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nsOneClients, err := scenario.ListTailscaleClients("user1")
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if err != nil {
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t.Errorf("failed to get clients: %s", err)
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}
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2023-01-17 09:43:44 -07:00
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nsTwoClients, err := scenario.ListTailscaleClients("user2")
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if err != nil {
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t.Errorf("failed to get clients: %s", err)
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}
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err = scenario.WaitForTailscaleSync()
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if err != nil {
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t.Errorf("failed wait for tailscale clients to be in sync: %s", err)
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}
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_, err = scenario.ListTailscaleClientsFQDNs()
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if err != nil {
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t.Errorf("failed to get FQDNs: %s", err)
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}
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testInterUserSSH := func(sourceClients []TailscaleClient, targetClients []TailscaleClient) {
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for _, client := range sourceClients {
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for _, peer := range targetClients {
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assertSSHHostname(t, client, peer)
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}
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}
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}
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2023-01-17 09:43:44 -07:00
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testInterUserSSH(nsOneClients, nsTwoClients)
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testInterUserSSH(nsTwoClients, nsOneClients)
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2022-11-19 04:41:12 -07:00
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err = scenario.Shutdown()
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if err != nil {
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t.Errorf("failed to tear down scenario: %s", err)
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}
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}
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func TestSSHNoSSHConfigured(t *testing.T) {
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IntegrationSkip(t)
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t.Parallel()
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2022-11-19 04:41:12 -07:00
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scenario, err := NewScenario()
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if err != nil {
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t.Errorf("failed to create scenario: %s", err)
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}
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spec := map[string]int{
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"user1": len(TailscaleVersions) - 5,
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2022-11-19 04:41:12 -07:00
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}
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err = scenario.CreateHeadscaleEnv(spec,
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[]tsic.Option{tsic.WithSSH()},
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hsic.WithACLPolicy(
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&headscale.ACLPolicy{
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Groups: map[string][]string{
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"group:integration-test": {"user1"},
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},
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ACLs: []headscale.ACL{
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{
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Action: "accept",
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Sources: []string{"*"},
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Destinations: []string{"*:*"},
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},
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},
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SSHs: []headscale.SSH{},
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},
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),
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hsic.WithTestName("sshnoneconfigured"),
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hsic.WithConfigEnv(map[string]string{
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"HEADSCALE_EXPERIMENTAL_FEATURE_SSH": "1",
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2022-11-24 08:41:33 -07:00
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}),
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)
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2022-11-19 04:41:12 -07:00
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if err != nil {
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t.Errorf("failed to create headscale environment: %s", err)
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}
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allClients, err := scenario.ListTailscaleClients()
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if err != nil {
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t.Errorf("failed to get clients: %s", err)
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}
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err = scenario.WaitForTailscaleSync()
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if err != nil {
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t.Errorf("failed wait for tailscale clients to be in sync: %s", err)
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}
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_, err = scenario.ListTailscaleClientsFQDNs()
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if err != nil {
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t.Errorf("failed to get FQDNs: %s", err)
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}
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for _, client := range allClients {
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for _, peer := range allClients {
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if client.Hostname() == peer.Hostname() {
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continue
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}
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assertSSHPermissionDenied(t, client, peer)
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}
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}
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2022-11-11 05:20:12 -07:00
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err = scenario.Shutdown()
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if err != nil {
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t.Errorf("failed to tear down scenario: %s", err)
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}
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}
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2022-11-19 04:41:12 -07:00
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func TestSSHIsBlockedInACL(t *testing.T) {
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IntegrationSkip(t)
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2022-11-24 08:17:24 -07:00
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t.Parallel()
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2022-11-11 05:20:12 -07:00
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2022-11-19 04:41:12 -07:00
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scenario, err := NewScenario()
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if err != nil {
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t.Errorf("failed to create scenario: %s", err)
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}
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spec := map[string]int{
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2023-01-17 09:43:44 -07:00
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"user1": len(TailscaleVersions) - 5,
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2022-11-19 04:41:12 -07:00
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}
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err = scenario.CreateHeadscaleEnv(spec,
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[]tsic.Option{tsic.WithSSH()},
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hsic.WithACLPolicy(
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&headscale.ACLPolicy{
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Groups: map[string][]string{
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2023-01-17 09:43:44 -07:00
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"group:integration-test": {"user1"},
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2022-11-19 04:41:12 -07:00
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},
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ACLs: []headscale.ACL{
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{
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Action: "accept",
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Sources: []string{"*"},
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Destinations: []string{"*:80"},
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},
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},
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SSHs: []headscale.SSH{
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{
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Action: "accept",
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Sources: []string{"group:integration-test"},
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Destinations: []string{"group:integration-test"},
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Users: []string{"ssh-it-user"},
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},
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},
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},
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),
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hsic.WithTestName("sshisblockedinacl"),
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hsic.WithConfigEnv(map[string]string{
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2022-11-24 09:26:52 -07:00
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"HEADSCALE_EXPERIMENTAL_FEATURE_SSH": "1",
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2022-11-24 08:41:33 -07:00
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}),
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2022-11-19 04:41:12 -07:00
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)
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if err != nil {
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t.Errorf("failed to create headscale environment: %s", err)
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}
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allClients, err := scenario.ListTailscaleClients()
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if err != nil {
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t.Errorf("failed to get clients: %s", err)
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}
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2022-11-11 05:20:12 -07:00
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2022-11-19 04:41:12 -07:00
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err = scenario.WaitForTailscaleSync()
|
|
|
|
if err != nil {
|
|
|
|
t.Errorf("failed wait for tailscale clients to be in sync: %s", err)
|
|
|
|
}
|
2022-11-11 05:20:12 -07:00
|
|
|
|
2022-11-19 04:41:12 -07:00
|
|
|
_, err = scenario.ListTailscaleClientsFQDNs()
|
|
|
|
if err != nil {
|
|
|
|
t.Errorf("failed to get FQDNs: %s", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
for _, client := range allClients {
|
|
|
|
for _, peer := range allClients {
|
|
|
|
if client.Hostname() == peer.Hostname() {
|
|
|
|
continue
|
2022-11-11 05:20:12 -07:00
|
|
|
}
|
|
|
|
|
2022-11-19 04:41:12 -07:00
|
|
|
assertSSHTimeout(t, client, peer)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
err = scenario.Shutdown()
|
|
|
|
if err != nil {
|
|
|
|
t.Errorf("failed to tear down scenario: %s", err)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2023-01-17 09:43:44 -07:00
|
|
|
func TestSSUserOnlyIsolation(t *testing.T) {
|
2022-11-19 04:41:12 -07:00
|
|
|
IntegrationSkip(t)
|
2022-11-24 08:17:24 -07:00
|
|
|
t.Parallel()
|
2022-11-19 04:41:12 -07:00
|
|
|
|
|
|
|
scenario, err := NewScenario()
|
|
|
|
if err != nil {
|
|
|
|
t.Errorf("failed to create scenario: %s", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
spec := map[string]int{
|
2023-01-17 09:43:44 -07:00
|
|
|
"useracl1": len(TailscaleVersions) - 5,
|
|
|
|
"useracl2": len(TailscaleVersions) - 5,
|
2022-11-19 04:41:12 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
err = scenario.CreateHeadscaleEnv(spec,
|
|
|
|
[]tsic.Option{tsic.WithSSH()},
|
|
|
|
hsic.WithACLPolicy(
|
|
|
|
&headscale.ACLPolicy{
|
|
|
|
Groups: map[string][]string{
|
2023-01-17 09:43:44 -07:00
|
|
|
"group:ssh1": {"useracl1"},
|
|
|
|
"group:ssh2": {"useracl2"},
|
2022-11-19 04:41:12 -07:00
|
|
|
},
|
|
|
|
ACLs: []headscale.ACL{
|
|
|
|
{
|
|
|
|
Action: "accept",
|
|
|
|
Sources: []string{"*"},
|
|
|
|
Destinations: []string{"*:*"},
|
|
|
|
},
|
|
|
|
},
|
|
|
|
SSHs: []headscale.SSH{
|
|
|
|
{
|
|
|
|
Action: "accept",
|
|
|
|
Sources: []string{"group:ssh1"},
|
|
|
|
Destinations: []string{"group:ssh1"},
|
|
|
|
Users: []string{"ssh-it-user"},
|
|
|
|
},
|
|
|
|
{
|
|
|
|
Action: "accept",
|
|
|
|
Sources: []string{"group:ssh2"},
|
|
|
|
Destinations: []string{"group:ssh2"},
|
|
|
|
Users: []string{"ssh-it-user"},
|
|
|
|
},
|
|
|
|
},
|
|
|
|
},
|
|
|
|
),
|
2023-01-17 09:43:44 -07:00
|
|
|
hsic.WithTestName("sshtwouseraclblock"),
|
2022-11-24 08:41:33 -07:00
|
|
|
hsic.WithConfigEnv(map[string]string{
|
2022-11-24 09:26:52 -07:00
|
|
|
"HEADSCALE_EXPERIMENTAL_FEATURE_SSH": "1",
|
2022-11-24 08:41:33 -07:00
|
|
|
}),
|
2022-11-19 04:41:12 -07:00
|
|
|
)
|
|
|
|
if err != nil {
|
|
|
|
t.Errorf("failed to create headscale environment: %s", err)
|
|
|
|
}
|
2022-11-11 05:20:12 -07:00
|
|
|
|
2023-01-17 09:43:44 -07:00
|
|
|
ssh1Clients, err := scenario.ListTailscaleClients("useracl1")
|
2022-11-19 04:41:12 -07:00
|
|
|
if err != nil {
|
|
|
|
t.Errorf("failed to get clients: %s", err)
|
|
|
|
}
|
|
|
|
|
2023-01-17 09:43:44 -07:00
|
|
|
ssh2Clients, err := scenario.ListTailscaleClients("useracl2")
|
2022-11-19 04:41:12 -07:00
|
|
|
if err != nil {
|
|
|
|
t.Errorf("failed to get clients: %s", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
err = scenario.WaitForTailscaleSync()
|
|
|
|
if err != nil {
|
|
|
|
t.Errorf("failed wait for tailscale clients to be in sync: %s", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
_, err = scenario.ListTailscaleClientsFQDNs()
|
|
|
|
if err != nil {
|
|
|
|
t.Errorf("failed to get FQDNs: %s", err)
|
|
|
|
}
|
|
|
|
|
|
|
|
// TODO(kradalby,evenh): ACLs do currently not cover reject
|
|
|
|
// cases properly, and currently will accept all incomming connections
|
|
|
|
// as long as a rule is present.
|
2023-04-28 08:11:02 -06:00
|
|
|
|
2022-11-19 04:41:12 -07:00
|
|
|
// for _, client := range ssh1Clients {
|
|
|
|
// for _, peer := range ssh2Clients {
|
|
|
|
// if client.Hostname() == peer.Hostname() {
|
|
|
|
// continue
|
|
|
|
// }
|
|
|
|
//
|
|
|
|
// assertSSHPermissionDenied(t, client, peer)
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
//
|
|
|
|
// for _, client := range ssh2Clients {
|
|
|
|
// for _, peer := range ssh1Clients {
|
|
|
|
// if client.Hostname() == peer.Hostname() {
|
|
|
|
// continue
|
|
|
|
// }
|
|
|
|
//
|
|
|
|
// assertSSHPermissionDenied(t, client, peer)
|
|
|
|
// }
|
|
|
|
// }
|
|
|
|
|
|
|
|
for _, client := range ssh1Clients {
|
|
|
|
for _, peer := range ssh1Clients {
|
|
|
|
if client.Hostname() == peer.Hostname() {
|
|
|
|
continue
|
2022-11-11 05:20:12 -07:00
|
|
|
}
|
|
|
|
|
2022-11-19 04:41:12 -07:00
|
|
|
assertSSHHostname(t, client, peer)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
for _, client := range ssh2Clients {
|
|
|
|
for _, peer := range ssh2Clients {
|
|
|
|
if client.Hostname() == peer.Hostname() {
|
|
|
|
continue
|
2022-11-11 05:20:12 -07:00
|
|
|
}
|
|
|
|
|
2022-11-19 04:41:12 -07:00
|
|
|
assertSSHHostname(t, client, peer)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
err = scenario.Shutdown()
|
|
|
|
if err != nil {
|
|
|
|
t.Errorf("failed to tear down scenario: %s", err)
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func doSSH(t *testing.T, client TailscaleClient, peer TailscaleClient) (string, string, error) {
|
|
|
|
t.Helper()
|
|
|
|
|
|
|
|
peerFQDN, _ := peer.FQDN()
|
|
|
|
|
|
|
|
command := []string{
|
|
|
|
"ssh", "-o StrictHostKeyChecking=no", "-o ConnectTimeout=1",
|
|
|
|
fmt.Sprintf("%s@%s", "ssh-it-user", peerFQDN),
|
|
|
|
"'hostname'",
|
|
|
|
}
|
|
|
|
|
|
|
|
return retry(10, 1*time.Second, func() (string, string, error) {
|
|
|
|
return client.Execute(command)
|
|
|
|
})
|
|
|
|
}
|
|
|
|
|
|
|
|
func assertSSHHostname(t *testing.T, client TailscaleClient, peer TailscaleClient) {
|
|
|
|
t.Helper()
|
|
|
|
|
|
|
|
result, _, err := doSSH(t, client, peer)
|
|
|
|
assert.NoError(t, err)
|
|
|
|
|
2022-11-21 05:56:18 -07:00
|
|
|
assert.Contains(t, peer.ID(), strings.ReplaceAll(result, "\n", ""))
|
2022-11-19 04:41:12 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
func assertSSHPermissionDenied(t *testing.T, client TailscaleClient, peer TailscaleClient) {
|
|
|
|
t.Helper()
|
|
|
|
|
|
|
|
result, stderr, err := doSSH(t, client, peer)
|
|
|
|
assert.Error(t, err)
|
|
|
|
|
|
|
|
assert.Empty(t, result)
|
|
|
|
|
|
|
|
assert.Contains(t, stderr, "Permission denied (tailscale)")
|
|
|
|
}
|
|
|
|
|
|
|
|
func assertSSHTimeout(t *testing.T, client TailscaleClient, peer TailscaleClient) {
|
|
|
|
t.Helper()
|
|
|
|
|
|
|
|
result, stderr, err := doSSH(t, client, peer)
|
|
|
|
assert.NoError(t, err)
|
|
|
|
|
|
|
|
assert.Empty(t, result)
|
|
|
|
|
|
|
|
assert.Contains(t, stderr, "Connection timed out")
|
2022-11-11 05:20:12 -07:00
|
|
|
}
|