| 1 | package host |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "os" |
| 6 | "testing" |
| 7 | |
| 8 | "github.com/carlosframework/platform/internal/moves" |
| 9 | ) |
| 10 | |
| 11 | func TestPlan14RootFloorBootDecision(t *testing.T) { |
| 12 | for _, attack := range []string{"none", "current below", "prev below", "stale verdict", "missing floor", "corrupt floor", "old reader", "pending participation", "replaced binary"} { |
| 13 | t.Run(attack, func(t *testing.T) { |
| 14 | f := rootMovesFloors{private: &rollbackMemory{files: map[string][]byte{}}, public: &rollbackMemory{files: map[string][]byte{}}, identity: rootFloorIdentity{Deployment: "d", Box: "b", Enrollment: "e"}} |
| 15 | b := moves.Floor{Min: 1, MinRelease: "v2.0.0"} |
| 16 | if err := f.reconstruct(t.Context(), rootFloorReconstruction{Identity: f.identity, Floor: &b, Source: "history", Digest: floorTestDigest, Authorization: floorTestAuthorization(t, f)}); err != nil { |
| 17 | t.Fatal(err) |
| 18 | } |
| 19 | current := rootFloorBinary{Version: "v2.0.0", Protocol: 1, Digest: floorTestDigest} |
| 20 | prev := current |
| 21 | j := rootFloorJudge{floors: f, current: "current", prev: "prev", binary: func(path string) (rootFloorBinary, error) { |
| 22 | if path == "prev" { |
| 23 | return prev, nil |
| 24 | } |
| 25 | return current, nil |
| 26 | }, idle: func(context.Context) error { return nil }} |
| 27 | if err := j.judge(t.Context()); err != nil { |
| 28 | t.Fatal(err) |
| 29 | } |
| 30 | switch attack { |
| 31 | case "current below": |
| 32 | current.Version = "v1.0.0" |
| 33 | prev = current |
| 34 | case "prev below": |
| 35 | prev.Version = "v1.0.0" |
| 36 | case "stale verdict": |
| 37 | if err := f.refresh(t.Context(), &b, nil, nil); err != nil { |
| 38 | t.Fatal(err) |
| 39 | } |
| 40 | case "missing floor": |
| 41 | f.public.Remove(rootFloorSelector) |
| 42 | case "corrupt floor": |
| 43 | f.public.Write(rootFloorSelector, []byte("broken")) |
| 44 | case "replaced binary": |
| 45 | prev.Digest = "replacement" |
| 46 | } |
| 47 | calls := 0 |
| 48 | gate := func(context.Context, string) error { |
| 49 | calls++ |
| 50 | if attack == "old reader" { |
| 51 | return os.ErrPermission |
| 52 | } |
| 53 | return nil |
| 54 | } |
| 55 | idle := func(context.Context) error { |
| 56 | if attack == "pending participation" { |
| 57 | return os.ErrPermission |
| 58 | } |
| 59 | return nil |
| 60 | } |
| 61 | got, err := rootFloorBootCandidate(t.Context(), j, true, gate, idle) |
| 62 | |
| 63 | if err != nil { |
| 64 | t.Fatal(err) |
| 65 | } |
| 66 | want := "current" |
| 67 | if attack == "none" { |
| 68 | want = "prev" |
| 69 | } |
| 70 | if got != want { |
| 71 | t.Fatal(got, want) |
| 72 | } |
| 73 | if attack == "prev below" && calls != 0 { |
| 74 | t.Fatal("below-floor previous binary executed for gate") |
| 75 | } |
| 76 | }) |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | func TestPlan14PrevRebootSafeVerdict(t *testing.T) { |
| 81 | f := rootMovesFloors{private: &rollbackMemory{files: map[string][]byte{}}, public: &rollbackMemory{files: map[string][]byte{}}, identity: rootFloorIdentity{"d", "b", "e"}} |
| 82 | bound := moves.Floor{Min: 1, MinRelease: "v2.0.0"} |
| 83 | if err := f.reconstruct(t.Context(), rootFloorReconstruction{Identity: f.identity, Floor: &bound, Source: "accepted", Digest: floorTestDigest, Authorization: floorTestAuthorization(t, f)}); err != nil { |
| 84 | t.Fatal(err) |
| 85 | } |
| 86 | prev := rootFloorBinary{Version: "v2.0.0", Protocol: 1, Digest: floorTestDigest} |
| 87 | broken := false |
| 88 | j := rootFloorJudge{floors: f, current: "current", prev: "prev", binary: func(path string) (rootFloorBinary, error) { |
| 89 | if path == "current" && broken { |
| 90 | return rootFloorBinary{}, os.ErrPermission |
| 91 | } |
| 92 | return prev, nil |
| 93 | }, idle: func(context.Context) error { return nil }} |
| 94 | if err := j.judge(t.Context()); err != nil { |
| 95 | t.Fatal(err) |
| 96 | } |
| 97 | prev.File.Device++ |
| 98 | broken = true |
| 99 | got, err := rootFloorBootCandidate(t.Context(), j, true, func(context.Context, string) error { return nil }, func(context.Context) error { return nil }) |
| 100 | if err != nil || got != "prev" { |
| 101 | t.Fatal("interrupted update lost unchanged previous image after device renumber", got, err) |
| 102 | } |
| 103 | prev.Digest = "substituted" |
| 104 | if err := rootFloorPrevVerdict(j); err == nil { |
| 105 | t.Fatal("substituted bytes accepted") |
| 106 | } |
| 107 | } |
| 108 | |
amadan