| 1 | //go:build linux && rootrunner |
| 2 | |
| 3 | package host |
| 4 | |
| 5 | import ( |
| 6 | "bytes" |
| 7 | "context" |
| 8 | "crypto/sha256" |
| 9 | "database/sql" |
| 10 | "encoding/hex" |
| 11 | "flag" |
| 12 | "io" |
| 13 | "net" |
| 14 | "net/http" |
| 15 | "os" |
| 16 | "os/exec" |
| 17 | "path/filepath" |
| 18 | "strings" |
| 19 | "testing" |
| 20 | "time" |
| 21 | |
| 22 | "github.com/carlosframework/platform/internal/activator" |
| 23 | "github.com/carlosframework/platform/internal/cgroup" |
| 24 | "github.com/carlosframework/platform/internal/hostclaim" |
| 25 | "github.com/carlosframework/platform/internal/provision" |
| 26 | "github.com/carlosframework/platform/internal/registry" |
| 27 | ) |
| 28 | |
| 29 | var seedTenantSocket = flag.String("socket", "", "") |
| 30 | var seedTenantDB = flag.String("db", "", "") |
| 31 | |
| 32 | func init() { |
| 33 | if os.Getenv("FILES_SEED_TENANT") == "1" { |
| 34 | os.Args = append(os.Args, "-test.run=^TestRootFilesSeedTenantPayload$", "-test.timeout=30s") |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | // This process is launched from the ordinary selected Build closure after C8. |
| 39 | // The surrounding fixture still supplies role authority and stop evidence; |
| 40 | // this witness does not stand in for the installed isolated role-launch test. |
| 41 | func TestRootFilesSeedTenantPayload(t *testing.T) { |
| 42 | if os.Getenv("FILES_SEED_TENANT") != "1" { |
| 43 | t.Fatal("invoke through real-origin tenant witness") |
| 44 | } |
| 45 | for _, path := range strings.Split(os.Getenv("FILES_SEED_DENIED"), ":") { |
| 46 | if path != "" { |
| 47 | if body, err := os.ReadFile(path); err == nil { |
| 48 | _ = os.WriteFile(os.Getenv("FILES_SEED_PAYLOAD")+".isolation-violation", []byte(path), 0600) |
| 49 | t.Fatalf("tenant read foreign path %s: %q", path, body) |
| 50 | } |
| 51 | if f, err := os.OpenFile(path, os.O_WRONLY, 0); err == nil { |
| 52 | f.Close() |
| 53 | t.Fatalf("tenant opened foreign path for write: %s", path) |
| 54 | } |
| 55 | } |
| 56 | } |
| 57 | db, err := sql.Open("sqlite", *seedTenantDB) |
| 58 | if err != nil { |
| 59 | t.Fatal(err) |
| 60 | } |
| 61 | defer db.Close() |
| 62 | var integrity string |
| 63 | if err := db.QueryRow("PRAGMA integrity_check").Scan(&integrity); err != nil || integrity != "ok" { |
| 64 | t.Fatal(integrity, err) |
| 65 | } |
| 66 | body, err := os.ReadFile(os.Getenv("FILES_SEED_PAYLOAD")) |
| 67 | expected := os.Getenv("FILES_SEED_EXPECTED") |
| 68 | if expected == "" { |
| 69 | expected = "real seeded bytes" |
| 70 | } |
| 71 | if err != nil || string(body) != expected { |
| 72 | t.Fatal(string(body), err) |
| 73 | } |
| 74 | listener, err := net.Listen("unix", *seedTenantSocket) |
| 75 | if err != nil { |
| 76 | t.Fatal(err) |
| 77 | } |
| 78 | defer listener.Close() |
| 79 | server := &http.Server{Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.Write(body) })} |
| 80 | defer server.Close() |
| 81 | if err := server.Serve(listener); err != nil { |
| 82 | t.Fatal(err) |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | func rootFilesSeedLiveWitness(t *testing.T, binary string) filesSeedLiveWitness { |
| 87 | body, err := os.ReadFile(binary) |
| 88 | if err != nil { |
| 89 | t.Fatal(err) |
| 90 | } |
| 91 | digest := sha256.Sum256(body) |
| 92 | return filesSeedLiveWitness{configure: func(w *ClaimWakeAssembly) { |
| 93 | owners := w.Inputs.(*claimServingOwners) |
| 94 | selectLaunch := owners.Sources.Launch |
| 95 | owners.Sources.Launch = func(ctx context.Context, rt registry.Route) (ClaimServingLaunch, error) { |
| 96 | launch, err := selectLaunch(ctx, rt) |
| 97 | if err != nil { |
| 98 | return launch, err |
| 99 | } |
| 100 | launch.Executable = binary |
| 101 | launch.ExecutableSHA256 = hex.EncodeToString(digest[:]) |
| 102 | launch.Env = append(launch.Env, "FILES_SEED_TENANT=1", "FILES_SEED_PAYLOAD="+filepath.Join(filepath.Dir(rt.DBPath), rt.Host, "payload")) |
| 103 | return launch, nil |
| 104 | } |
| 105 | }, serve: func(t *testing.T, p *servingPreparation, o hostclaim.Observed, start activator.ClaimStart) { |
| 106 | socket := provision.NestedSocket(o.Host) |
| 107 | if err := os.MkdirAll(filepath.Dir(socket), 0700); err != nil { |
| 108 | t.Fatal(err) |
| 109 | } |
| 110 | cmd := start.Build() |
| 111 | cmd.Stdin = os.Stdin |
| 112 | var output bytes.Buffer |
| 113 | cmd.Stdout = &output |
| 114 | cmd.Stderr = &output |
| 115 | if err := cmd.Start(); err != nil { |
| 116 | t.Fatal(err) |
| 117 | } |
| 118 | // No readiness or success is fabricated: the selected process owns the socket. |
| 119 | defer func() { cmd.Process.Kill(); cmd.Wait(); os.Remove(socket) }() |
| 120 | ctx, cancel := context.WithTimeout(t.Context(), 3*time.Second) |
| 121 | defer cancel() |
| 122 | if err := start.Ready(ctx, cmd); err != nil { |
| 123 | cmd.Process.Kill() |
| 124 | cmd.Wait() |
| 125 | t.Fatalf("tenant readiness: %v %s", err, output.String()) |
| 126 | } |
| 127 | transport := &http.Transport{DialContext: func(ctx context.Context, _, _ string) (net.Conn, error) { |
| 128 | return (&net.Dialer{}).DialContext(ctx, "unix", socket) |
| 129 | }} |
| 130 | defer transport.CloseIdleConnections() |
| 131 | response, err := (&http.Client{Transport: transport, Timeout: time.Second}).Get("http://tenant/") |
| 132 | if err != nil { |
| 133 | t.Fatal(err) |
| 134 | } |
| 135 | payload, err := io.ReadAll(response.Body) |
| 136 | response.Body.Close() |
| 137 | if err != nil || response.StatusCode != 200 || string(payload) != "real seeded bytes" { |
| 138 | t.Fatal("tenant served wrong restored payload", err, string(payload)) |
| 139 | } |
| 140 | wrong, _ := os.FindProcess(os.Getpid()) |
| 141 | refuse, stop := context.WithTimeout(t.Context(), 40*time.Millisecond) |
| 142 | defer stop() |
| 143 | if err := start.Ready(refuse, &exec.Cmd{Process: wrong}); err == nil { |
| 144 | t.Fatal("readiness accepted controller instead of tenant") |
| 145 | } |
| 146 | }} |
| 147 | } |
| 148 | |
| 149 | func TestFilesSeedLiveFixtureShape(t *testing.T) { |
| 150 | binary, err := os.Executable() |
| 151 | if err != nil { |
| 152 | t.Fatal(err) |
| 153 | } |
| 154 | witness := rootFilesSeedLiveWitness(t, binary) |
| 155 | f := plan9D5Fixture(t) |
| 156 | rt := registry.Route{Host: recoveryHost, DBPath: provision.NestedDBPath("/data", recoveryHost), Socket: provision.NestedSocket(recoveryHost)} |
| 157 | f.launch.Args = []string{"--socket", rt.Socket, "--db", rt.DBPath} |
| 158 | f.launch.Env = []string{"CARLOS_ADMIN_TOKEN=test"} |
| 159 | w := &ClaimWakeAssembly{Inputs: f.owners} |
| 160 | witness.configure(w) |
| 161 | launch, err := f.owners.Sources.Launch(t.Context(), rt) |
| 162 | if err != nil { |
| 163 | t.Fatal(err) |
| 164 | } |
| 165 | role := &ClaimRoleAssembly{Root: fakeLaunchRoot{}, ManagedRoots: map[string]string{"data": "/data"}} |
| 166 | in := ClaimLaunchInputs{Limit: cgroup.TierDefault, Roles: []string{"main"}, Identity: launch.Identity, Executable: launch.Executable, ExecutableSHA256: launch.ExecutableSHA256, Args: launch.Args, Env: launch.Env, DBPath: rt.DBPath} |
| 167 | if err := role.PreflightLaunch(rt.Host, in); err != nil { |
| 168 | t.Fatal(err, launch.Args, launch.Env) |
| 169 | } |
| 170 | } |
| 171 | |
amadan