| 1 | //go:build linux && rootrunner |
| 2 | |
| 3 | package host |
| 4 | |
| 5 | import ( |
| 6 | "context" |
| 7 | "golang.org/x/sys/unix" |
| 8 | "os" |
| 9 | "os/exec" |
| 10 | "path/filepath" |
| 11 | "strconv" |
| 12 | "strings" |
| 13 | "testing" |
| 14 | "time" |
| 15 | ) |
| 16 | |
| 17 | func TestRootRebootFilesSeedTwoHostRenumberPhase1(t *testing.T) { |
| 18 | TestRootRebootFilesSeedTwoHostPhase1(t) |
| 19 | } |
| 20 | func TestRootRebootFilesSeedTwoHostRenumberPhase2(t *testing.T) { |
| 21 | TestRootRebootFilesSeedTwoHostPhase2(t) |
| 22 | } |
| 23 | |
| 24 | func seedRunnerRebootDisk(t *testing.T) { |
| 25 | t.Helper() |
| 26 | command := func(args ...string) string { |
| 27 | t.Helper() |
| 28 | out, err := exec.CommandContext(t.Context(), args[0], args[1:]...).CombinedOutput() |
| 29 | if err != nil { |
| 30 | t.Fatalf("renumber disk %q: %v %s", args, err, out) |
| 31 | } |
| 32 | return strings.TrimSpace(string(out)) |
| 33 | } |
| 34 | create := func(path string, size int64) { |
| 35 | t.Helper() |
| 36 | f, err := os.OpenFile(path, os.O_CREATE|os.O_EXCL|os.O_RDWR, 0600) |
| 37 | if err != nil { |
| 38 | t.Fatal(err) |
| 39 | } |
| 40 | err = f.Truncate(size) |
| 41 | closeErr := f.Close() |
| 42 | if err != nil || closeErr != nil { |
| 43 | t.Fatal(err, closeErr) |
| 44 | } |
| 45 | } |
| 46 | detach := func(device string) { |
| 47 | t.Cleanup(func() { |
| 48 | ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second) |
| 49 | defer cancel() |
| 50 | if out, err := exec.CommandContext(ctx, "losetup", "--detach", device).CombinedOutput(); err != nil { |
| 51 | t.Errorf("detach %s: %v %s", device, err, out) |
| 52 | } |
| 53 | }) |
| 54 | } |
| 55 | image := filepath.Join(seedRebootPath, "data.ext4") |
| 56 | deviceFile := filepath.Join(seedRebootPath, "data.device") |
| 57 | first := strings.HasSuffix(t.Name(), "Phase1") |
| 58 | renumber := strings.Contains(t.Name(), "Renumber") |
| 59 | device := "" |
| 60 | if first { |
| 61 | create(image, 2<<30) |
| 62 | command("mkfs.ext4", "-q", "-F", image) |
| 63 | } else { |
| 64 | old, err := os.ReadFile(deviceFile) |
| 65 | if err != nil { |
| 66 | t.Fatal(err) |
| 67 | } |
| 68 | suffix := strings.TrimPrefix(string(old), "/dev/loop") |
| 69 | if suffix == string(old) { |
| 70 | t.Fatal("invalid loop device") |
| 71 | } |
| 72 | if _, err := strconv.ParseUint(suffix, 10, 32); err != nil { |
| 73 | t.Fatal(err) |
| 74 | } |
| 75 | if renumber { |
| 76 | blocker := filepath.Join(seedRebootPath, "blocker") |
| 77 | create(blocker, 1<<20) |
| 78 | command("losetup", string(old), blocker) |
| 79 | detach(string(old)) |
| 80 | } else { |
| 81 | device = string(old) |
| 82 | command("losetup", device, image) |
| 83 | } |
| 84 | } |
| 85 | if device == "" { |
| 86 | device = command("losetup", "--find", "--show", image) |
| 87 | } |
| 88 | detach(device) |
| 89 | if first { |
| 90 | if err := os.WriteFile(deviceFile, []byte(device), 0600); err != nil { |
| 91 | t.Fatal(err) |
| 92 | } |
| 93 | } else { |
| 94 | old, err := os.ReadFile(deviceFile) |
| 95 | if err != nil || (string(old) != device) != renumber { |
| 96 | t.Fatal("unexpected reboot device number", err) |
| 97 | } |
| 98 | } |
| 99 | if err := unix.Mount(device, "/data", "ext4", unix.MS_NOSUID|unix.MS_NODEV, ""); err != nil { |
| 100 | t.Fatal(err) |
| 101 | } |
| 102 | t.Cleanup(func() { |
| 103 | if err := unix.Unmount("/data", 0); err != nil { |
| 104 | t.Error(err) |
| 105 | } |
| 106 | }) |
| 107 | t.Logf("two-host data filesystem attached at %s", device) |
| 108 | } |
| 109 | |
| 110 | func TestRootServingHandoverDirectoryProof(t *testing.T) { |
| 111 | servingRootRunner(t) |
| 112 | TestServingHandoverRebootDirectoryProof(t) |
| 113 | TestServingHandoverRebootEqualNumbers(t) |
| 114 | } |
| 115 | |
| 116 | func TestRootServingParkRetainedDoesNotBlockRetirement(t *testing.T) { |
| 117 | servingRootRunner(t) |
| 118 | TestServingParkRetainedDoesNotBlockRetirement(t) |
| 119 | TestServingParkRetainedReplacementWriteFailures(t) |
| 120 | TestServingParkQuarantineRetainedParkAllowsRetirement(t) |
| 121 | } |
| 122 | |
amadan