| 1 | //go:build linux && rootrunner |
| 2 | |
| 3 | package host |
| 4 | |
| 5 | import ( |
| 6 | "errors" |
| 7 | "fmt" |
| 8 | "testing" |
| 9 | |
| 10 | "github.com/carlosframework/platform/internal/moves" |
| 11 | "github.com/carlosframework/platform/internal/rootstate" |
| 12 | ) |
| 13 | |
| 14 | func TestPlan14RootFloorSyscallCrashOrdering(t *testing.T) { |
| 15 | testRootProtocolFloorCrashes(t, rootFloorDir) |
| 16 | } |
| 17 | func TestPlan14RootSeedsFloorSyscallCrashOrdering(t *testing.T) { |
| 18 | testRootProtocolFloorCrashes(t, rootSeedsFloorDir) |
| 19 | } |
| 20 | func testRootProtocolFloorCrashes(t *testing.T, floorDir func(string) string) { |
| 21 | for _, stage := range []string{"write", "chmod", "file-sync", "close", "rename", "parent-sync"} { |
| 22 | for _, after := range []bool{false, true} { |
| 23 | for cut := 1; cut <= 5; cut++ { |
| 24 | t.Run(fmt.Sprintf("%s/after=%t/write=%d", stage, after, cut), func(t *testing.T) { |
| 25 | opt := generationRootRunnerDir(t) |
| 26 | id := rootFloorIdentity{Deployment: "deploy", Box: "box", Enrollment: "en"} |
| 27 | f, err := openRootProtocolFloors(floorDir(opt), id, true) |
| 28 | if err != nil { |
| 29 | t.Fatal(err) |
| 30 | } |
| 31 | a := moves.Floor{Min: 1, MinRelease: "v1.0.0"} |
| 32 | b := moves.Floor{Min: 2, MinRelease: "v2.0.0"} |
| 33 | if err := f.reconstruct(t.Context(), rootFloorReconstruction{Identity: id, Floor: &a, Source: "history", Digest: floorTestDigest, Authorization: floorTestAuthorization(t, f)}); err != nil { |
| 34 | t.Fatal(err) |
| 35 | } |
| 36 | n := 0 |
| 37 | injected := errors.New("interrupted syscall") |
| 38 | fault := func(_ string, point string, op func() error) error { |
| 39 | if point != stage { |
| 40 | return op() |
| 41 | } |
| 42 | n++ |
| 43 | if n != cut { |
| 44 | return op() |
| 45 | } |
| 46 | if after { |
| 47 | if err := op(); err != nil { |
| 48 | return err |
| 49 | } |
| 50 | } |
| 51 | return injected |
| 52 | } |
| 53 | broken := f |
| 54 | broken.private = rootstate.WithWriteFault(f.private, fault) |
| 55 | broken.public = rootstate.WithWriteFault(f.public, fault) |
| 56 | if err := broken.refresh(t.Context(), &b, nil, nil); !errors.Is(err, injected) { |
| 57 | t.Fatalf("cut not reached: %v", err) |
| 58 | } |
| 59 | f.close() |
| 60 | f, err = openRootProtocolFloors(floorDir(opt), id, false) |
| 61 | if err != nil { |
| 62 | t.Fatal(err) |
| 63 | } |
| 64 | defer f.close() |
| 65 | // Before the second write's rename B is not visible. Thereafter the |
| 66 | // selector itself retains B even before accepted.json is replaced. |
| 67 | bound, err := f.bound() |
| 68 | if err != nil { |
| 69 | t.Fatal(err) |
| 70 | } |
| 71 | bVisible := cut > 2 || cut == 2 && (stage == "parent-sync" || stage == "rename" && after) |
| 72 | if bVisible && (bound == nil || *bound != b) { |
| 73 | t.Fatalf("lost visible deny: %+v", bound) |
| 74 | } |
| 75 | if p, e := readRootProtocolProjection(floorDir(opt)); e == nil && p.Floor != nil && *p.Floor == b { |
| 76 | t.Fatal("failed syscall acknowledged B") |
| 77 | } |
| 78 | if err := f.refresh(t.Context(), &b, nil, nil); err != nil { |
| 79 | t.Fatal("retry", err) |
| 80 | } |
| 81 | p, err := readRootProtocolProjection(floorDir(opt)) |
| 82 | if err != nil || p.Floor == nil || *p.Floor != b { |
| 83 | t.Fatal("retry did not durably accept B", p, err) |
| 84 | } |
| 85 | if err := f.refresh(t.Context(), &a, nil, nil); err == nil { |
| 86 | t.Fatal("regressed after recovery") |
| 87 | } |
| 88 | bound, err = f.bound() |
| 89 | if err != nil || bound == nil || *bound != b { |
| 90 | t.Fatal("weakened deny", bound, err) |
| 91 | } |
| 92 | }) |
| 93 | } |
| 94 | } |
| 95 | } |
| 96 | } |
| 97 | |
amadan