| 1 | //go:build linux |
| 2 | |
| 3 | package host |
| 4 | |
| 5 | import ( |
| 6 | "os" |
| 7 | "path/filepath" |
| 8 | "testing" |
| 9 | |
| 10 | "github.com/carlosframework/platform/internal/instancectl" |
| 11 | "golang.org/x/sys/unix" |
| 12 | ) |
| 13 | |
| 14 | func TestServingParkRebootVolumeIdentity(t *testing.T) { |
| 15 | for _, serial := range []string{"vol0123456789abcdef0", "vol11111111111111111", ""} { |
| 16 | t.Run("serial-"+serial, func(t *testing.T) { |
| 17 | f, r := servingRebootRecordFixture(t, "complete") |
| 18 | servingRenumberHistory(t, f, &r) |
| 19 | f.fs.volume = func(uint64) string { return serial } |
| 20 | root := &servingParkRoot{ledger: f.ledger} |
| 21 | if err := root.commitServingReboot(t.Context(), r.Authorization.ID); err != nil { |
| 22 | t.Fatal("retention recovery", err) |
| 23 | } |
| 24 | current, err := f.ledger.read(r.Authorization.ID) |
| 25 | if err != nil { |
| 26 | t.Fatal(err) |
| 27 | } |
| 28 | if current.Source.BootID != servingOtherBoot { |
| 29 | t.Fatal("serving authority not rebound") |
| 30 | } |
| 31 | b, err := servingParkReadBinding(f.disk, "retirement-"+r.Authorization.ID) |
| 32 | if err != nil || b == nil { |
| 33 | t.Fatal(err) |
| 34 | } |
| 35 | if (b.Volume != "") != (serial == "vol0123456789abcdef0") { |
| 36 | t.Fatal("wrong destructive binding", b) |
| 37 | } |
| 38 | if serial != "vol0123456789abcdef0" { |
| 39 | if err := f.ledger.maintainParks(t.Context(), func() error { return instancectl.ErrDiskFull }); err == nil { |
| 40 | t.Fatal("pressure deleted retained volume") |
| 41 | } |
| 42 | f.retained(r.Authorization, "last database", r.ReapAfter) |
| 43 | } |
| 44 | f.now = r.ReapAfter |
| 45 | err = f.ledger.reapLocked(t.Context(), r.Authorization.ID) |
| 46 | if serial == "vol0123456789abcdef0" { |
| 47 | if err != nil { |
| 48 | t.Fatal("same volume reap", err) |
| 49 | } |
| 50 | if _, err := os.Stat(f.path(r.Authorization, "")); !os.IsNotExist(err) { |
| 51 | t.Fatal("park survived", err) |
| 52 | } |
| 53 | } else { |
| 54 | if err == nil { |
| 55 | t.Fatal("destructive clone/unreadable rebind") |
| 56 | } |
| 57 | f.retained(r.Authorization, "last database", r.ReapAfter) |
| 58 | // A later readable serial does not silently re-enroll a retained park. |
| 59 | f.fs.volume = func(uint64) string { return "vol0123456789abcdef0" } |
| 60 | f.fs.boot = func() (string, error) { return "33333333-3333-4333-8333-333333333333", nil } |
| 61 | if err := root.commitServingReboot(t.Context(), r.Authorization.ID); err != nil { |
| 62 | t.Fatal(err) |
| 63 | } |
| 64 | b, err := servingParkReadBinding(f.disk, "retirement-"+r.Authorization.ID) |
| 65 | if err != nil || b == nil || b.Volume != "" { |
| 66 | t.Fatal("automatic re-enrollment", b, err) |
| 67 | } |
| 68 | if err := f.ledger.reapLocked(t.Context(), r.Authorization.ID); err == nil { |
| 69 | t.Fatal("retained park gained deletion authority") |
| 70 | } |
| 71 | } |
| 72 | }) |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | func TestServingParkKernelVolumeResolution(t *testing.T) { |
| 77 | sys := t.TempDir() |
| 78 | disk := filepath.Join(sys, "devices", "nvme0n1") |
| 79 | part := filepath.Join(disk, "nvme0n1p1") |
| 80 | if err := os.MkdirAll(filepath.Join(disk, "device"), 0700); err != nil { |
| 81 | t.Fatal(err) |
| 82 | } |
| 83 | if err := os.Mkdir(part, 0700); err != nil { |
| 84 | t.Fatal(err) |
| 85 | } |
| 86 | if err := os.WriteFile(filepath.Join(part, "partition"), []byte("1\n"), 0600); err != nil { |
| 87 | t.Fatal(err) |
| 88 | } |
| 89 | links := filepath.Join(sys, "dev", "block") |
| 90 | if err := os.MkdirAll(links, 0700); err != nil { |
| 91 | t.Fatal(err) |
| 92 | } |
| 93 | for name, target := range map[string]string{"259:0": disk, "259:1": part} { |
| 94 | if err := os.Symlink(target, filepath.Join(links, name)); err != nil { |
| 95 | t.Fatal(err) |
| 96 | } |
| 97 | } |
| 98 | serial := filepath.Join(disk, "device", "serial") |
| 99 | for _, raw := range []string{"vol-0123456789abcdef0\n", " vol0123456789abcdef0 ", "bad", "vol../escape", "vol", "vol0123456789abcdefg"} { |
| 100 | if err := os.WriteFile(serial, []byte(raw), 0600); err != nil { |
| 101 | t.Fatal(err) |
| 102 | } |
| 103 | for _, minor := range []uint32{0, 1} { |
| 104 | got := servingParkVolumeAt(sys, unix.Mkdev(259, minor)) |
| 105 | want := "" |
| 106 | if raw == "vol-0123456789abcdef0\n" || raw == " vol0123456789abcdef0 " { |
| 107 | want = "vol0123456789abcdef0" |
| 108 | } |
| 109 | if got != want { |
| 110 | t.Fatal(raw, minor, got, want) |
| 111 | } |
| 112 | } |
| 113 | } |
| 114 | if err := os.Remove(serial); err != nil { |
| 115 | t.Fatal(err) |
| 116 | } |
| 117 | if servingParkVolumeAt(sys, unix.Mkdev(259, 1)) != "" || servingParkVolumeAt(sys, unix.Mkdev(7, 0)) != "" { |
| 118 | t.Fatal("unreadable disk/loop supplied identity") |
| 119 | } |
| 120 | } |
| 121 | |
amadan