| 1 | package release |
| 2 | |
| 3 | import ( |
| 4 | "crypto/ed25519" |
| 5 | "crypto/rand" |
| 6 | "errors" |
| 7 | "reflect" |
| 8 | "testing" |
| 9 | "time" |
| 10 | ) |
| 11 | |
| 12 | func identityRelease(tag, router, console string) SystemRelease { |
| 13 | return SystemRelease{Version: tag, Source: "release:" + tag, ReleaseTag: tag, MovesProtocol: 1, |
| 14 | Artifacts: map[string]SystemArtifact{"linux-arm64": {Key: SystemArtifactKey(tag, "linux-arm64"), SHA256: router}}, |
| 15 | ConsoleArtifacts: map[string]SystemArtifact{"linux-arm64": {Key: "bootstrap/console/" + tag + "/carlos-linux-arm64", SHA256: console}}} |
| 16 | } |
| 17 | |
| 18 | // SignSystemIdentity is the trusted host's signer for a release identity. |
| 19 | // Two signatures of one release are different bytes (promoted_at moves) but |
| 20 | // the same Current, so PublishSystemIdentity takes the second as a no-op and |
| 21 | // refuses a different release under the same tag. |
| 22 | func TestSignSystemIdentityPublishesCreateOnly(t *testing.T) { |
| 23 | pub, key, _ := ed25519.GenerateKey(rand.Reader) |
| 24 | sg := RootSigner(key) |
| 25 | rel := identityRelease("v0.28.2", hexOf('a'), hexOf('b')) |
| 26 | first, err := SignSystemIdentity(sg, rel) |
| 27 | if err != nil { |
| 28 | t.Fatal(err) |
| 29 | } |
| 30 | p, err := VerifySystemIdentity(pub, first) |
| 31 | if err != nil { |
| 32 | t.Fatal(err) |
| 33 | } |
| 34 | if p.Component != SystemComponentRouter || p.Channel != "stable" || p.Spread != "0s" || len(p.History) != 0 || len(p.Audit) != 0 || !reflect.DeepEqual(p.Current, rel) { |
| 35 | t.Fatalf("identity %+v", p) |
| 36 | } |
| 37 | s := NewDirStore(t.TempDir()) |
| 38 | ctx := t.Context() |
| 39 | if err = PublishSystemIdentity(ctx, s, pub, first); err != nil { |
| 40 | t.Fatal(err) |
| 41 | } |
| 42 | time.Sleep(1100 * time.Millisecond) // promoted_at has one-second resolution |
| 43 | second, err := SignSystemIdentity(sg, rel) |
| 44 | if err != nil { |
| 45 | t.Fatal(err) |
| 46 | } |
| 47 | if string(second) == string(first) { |
| 48 | t.Fatal("expected a fresh signature") |
| 49 | } |
| 50 | if err = PublishSystemIdentity(ctx, s, pub, second); err != nil { |
| 51 | t.Fatal("same release refused", err) |
| 52 | } |
| 53 | stored, _, err := s.Get(ctx, "control/system/router/releases/v0.28.2.json") |
| 54 | if err != nil || string(stored) != string(first) { |
| 55 | t.Fatal("create-only identity was replaced", err) |
| 56 | } |
| 57 | other, err := SignSystemIdentity(sg, identityRelease("v0.28.2", hexOf('a'), hexOf('c'))) |
| 58 | if err != nil { |
| 59 | t.Fatal(err) |
| 60 | } |
| 61 | if err = PublishSystemIdentity(ctx, s, pub, other); !errors.Is(err, ErrCASConflict) { |
| 62 | t.Fatal("different release under the same tag accepted", err) |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | func TestSignSystemIdentityRefusesWhatGuardArmCannotUse(t *testing.T) { |
| 67 | _, key, _ := ed25519.GenerateKey(rand.Reader) |
| 68 | sg := RootSigner(key) |
| 69 | for name, mutate := range map[string]func(*SystemRelease){ |
| 70 | "no tag": func(r *SystemRelease) { r.ReleaseTag = "" }, |
| 71 | "build as tag": func(r *SystemRelease) { r.ReleaseTag = "26065378" }, |
| 72 | "no protocol": func(r *SystemRelease) { r.MovesProtocol = 0 }, |
| 73 | "bad router sha": func(r *SystemRelease) { |
| 74 | r.Artifacts["linux-arm64"] = SystemArtifact{Key: SystemArtifactKey(r.Version, "linux-arm64"), SHA256: "abc"} |
| 75 | }, |
| 76 | "bad console key": func(r *SystemRelease) { |
| 77 | r.ConsoleArtifacts["linux-arm64"] = SystemArtifact{Key: "elsewhere", SHA256: hexOf('b')} |
| 78 | }, |
| 79 | "no artifacts": func(r *SystemRelease) { r.Artifacts = nil }, |
| 80 | } { |
| 81 | t.Run(name, func(t *testing.T) { |
| 82 | rel := identityRelease("v0.28.2", hexOf('a'), hexOf('b')) |
| 83 | mutate(&rel) |
| 84 | if _, err := SignSystemIdentity(sg, rel); err == nil { |
| 85 | t.Fatal("signed an identity guard-arm cannot use") |
| 86 | } |
| 87 | }) |
| 88 | } |
| 89 | scoped := sg |
| 90 | scoped.scope = &Grant{} |
| 91 | if _, err := SignSystemIdentity(scoped, identityRelease("v0.28.2", hexOf('a'), hexOf('b'))); err == nil { |
| 92 | t.Fatal("scoped key signed an identity") |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | func hexOf(c byte) string { |
| 97 | b := make([]byte, 64) |
| 98 | for i := range b { |
| 99 | b[i] = c |
| 100 | } |
| 101 | return string(b) |
| 102 | } |
| 103 | |
amadan