| 1 | package host |
| 2 | |
| 3 | import ( |
| 4 | "os" |
| 5 | "path/filepath" |
| 6 | "testing" |
| 7 | |
| 8 | "github.com/carlosframework/platform/internal/hostclaim" |
| 9 | "github.com/carlosframework/platform/internal/hostguard" |
| 10 | ) |
| 11 | |
| 12 | func TestPlan14RootLaunchRefusesReplacedAgentFence(t *testing.T) { |
| 13 | for _, attack := range []string{"honest", "delete", "rename", "replace lock", "forge", "receipt replay"} { |
| 14 | t.Run(attack, func(t *testing.T) { |
| 15 | f := newLaunchFixture(t, servingOp()) |
| 16 | f.claims.set(func(c *hostclaim.Claim) { |
| 17 | c.Holder.Account = "bab" |
| 18 | c.Holder.App = "app" |
| 19 | c.Holder.Admissions = []hostclaim.AdmissionRecord{{Box: f.target.Box, Region: f.target.Region, Session: f.target.Session, Generation: c.Holder.Generation}} |
| 20 | }) |
| 21 | guard := f.root.Guard |
| 22 | guard.Root = hostguard.NewRootAuthority(&rollbackDisk{dir: t.TempDir()}) |
| 23 | in := hostguard.RootInstallation{Host: f.target.Host, Account: "bab", App: "app", Record: "record", Incarnation: f.target.Incarnation, Stamp: f.target.Stamp, Box: f.target.Box, Enrollment: f.target.Enrollment, Migration: 1} |
| 24 | if err := guard.EstablishRoot(t.Context(), in, func(*hostclaim.Claim) error { return nil }); err != nil { |
| 25 | t.Fatal(err) |
| 26 | } |
| 27 | f.root.Guard = guard |
| 28 | if attack == "honest" { |
| 29 | if _, err := f.root.Serve(t.Context(), f.peer, f.req); err != nil { |
| 30 | t.Fatal(err) |
| 31 | } |
| 32 | if n, _ := f.units.counts(); n != 1 { |
| 33 | t.Fatalf("honest launch count: %d", n) |
| 34 | } |
| 35 | return |
| 36 | } |
| 37 | if attack == "receipt replay" { |
| 38 | if _, err := f.root.Serve(t.Context(), f.peer, f.req); err != nil { |
| 39 | t.Fatal(err) |
| 40 | } |
| 41 | } |
| 42 | target := f.target |
| 43 | target.FenceID = "root-fence" |
| 44 | if _, err := guard.BeginFence(t.Context(), target); err != nil { |
| 45 | t.Fatal(err) |
| 46 | } |
| 47 | path := filepath.Join(guard.DataDir, "hostguard", target.Host+".json") |
| 48 | switch attack { |
| 49 | case "delete": |
| 50 | if err := os.Remove(path); err != nil { |
| 51 | t.Fatal(err) |
| 52 | } |
| 53 | case "rename": |
| 54 | if err := os.Rename(filepath.Dir(path), filepath.Dir(path)+".old"); err != nil { |
| 55 | t.Fatal(err) |
| 56 | } |
| 57 | case "replace lock": |
| 58 | if err := os.Rename(guard.LockDir, guard.LockDir+".old"); err != nil { |
| 59 | t.Fatal(err) |
| 60 | } |
| 61 | if err := os.Mkdir(guard.LockDir, 0700); err != nil { |
| 62 | t.Fatal(err) |
| 63 | } |
| 64 | case "forge": |
| 65 | if err := os.WriteFile(path, []byte(`{"v":1,"host":"shop.example","incarnation":"inc-1","active_stamp":11}`), 0600); err != nil { |
| 66 | t.Fatal(err) |
| 67 | } |
| 68 | } |
| 69 | before, _ := f.units.counts() |
| 70 | if _, err := f.root.Serve(t.Context(), f.peer, f.req); err == nil { |
| 71 | t.Fatal("root launch bypassed fence") |
| 72 | } |
| 73 | if n, _ := f.units.counts(); n != before { |
| 74 | t.Fatal("fenced launch started a unit") |
| 75 | } |
| 76 | pending, err := guard.PendingFences(t.Context()) |
| 77 | if err != nil || len(pending) != 1 || pending[0] != target { |
| 78 | t.Fatalf("lost root recovery target: %+v %v", pending, err) |
| 79 | } |
| 80 | }) |
| 81 | } |
| 82 | } |
| 83 | |
amadan