Exemplo n.º 1
0
func (app *App) OpenKV(tx *db.Tx, storage *db.VolumeStorage) (kv.KV, error) {
	var kvstores []kv.KV

	c := storage.Cursor()
	for item := c.First(); item != nil; item = c.Next() {
		backend, err := item.Backend()
		if err != nil {
			return nil, err
		}
		s, err := app.openStorage(backend)
		if err != nil {
			return nil, err
		}

		sharingKeyName, err := item.SharingKeyName()
		if err != nil {
			return nil, err
		}
		sharingKey, err := tx.SharingKeys().Get(sharingKeyName)
		if err != nil {
			return nil, fmt.Errorf("getting sharing key %q: %v", sharingKeyName, err)
		}
		var secret [32]byte
		sharingKey.Secret(&secret)
		s = untrusted.New(s, &secret)

		kvstores = append(kvstores, s)
	}

	return kvmulti.New(kvstores...), nil
}
Exemplo n.º 2
0
func (app *App) openKV(conf *wire.KV) (kv.KV, error) {
	var kvstores []kv.KV

	if conf.Local != nil {
		kvpath := filepath.Join(app.DataDir, "chunks")
		var s kv.KV
		var err error
		s, err = kvfiles.Open(kvpath)
		if err != nil {
			return nil, err
		}
		if conf.Local.Secret != nil {
			var secret [32]byte
			copy(secret[:], conf.Local.Secret)
			s = untrusted.New(s, &secret)
		}
		kvstores = append(kvstores, s)
	}

	for _, ext := range conf.External {
		var s kv.KV
		var err error
		s, err = kvfiles.Open(ext.Path)
		if err != nil {
			return nil, err
		}
		if ext.Secret != nil {
			var secret [32]byte
			copy(secret[:], ext.Secret)
			s = untrusted.New(s, &secret)
		}
		kvstores = append(kvstores, s)
	}

	if len(conf.XXX_unrecognized) > 0 {
		return nil, fmt.Errorf("unknown storage: %v", conf)
	}

	return kvmulti.New(kvstores...), nil
}
Exemplo n.º 3
0
func TestWrongType(t *testing.T) {
	remote := &kvmock.InMemory{}
	secret := &[32]byte{
		42, 42, 42, 42, 42, 42, 42, 42,
		42, 42, 42, 42, 42, 42, 42, 42,
		42, 42, 42, 42, 42, 42, 42, 42,
		42, 42, 42, 42, 42, 42, 42, 42,
	}
	converg := untrusted.New(remote, secret)
	store := kvchunks.New(converg)

	phony := &chunks.Chunk{
		Type:  "evilchunk",
		Level: 3,
		Buf:   []byte(GREETING),
	}
	_, err := store.Add(phony)
	if err != nil {
		t.Fatalf("store.Add failed: %v", err)
	}
	var phonyData string
	for k, v := range remote.Data {
		phonyData = v
		delete(remote.Data, k)
	}

	orig := &chunks.Chunk{
		Type:  "testchunk",
		Level: 3,
		Buf:   []byte(GREETING),
	}
	key, err := store.Add(orig)
	if err != nil {
		t.Fatalf("store.Add failed: %v", err)
	}
	// replace it with the phony, preserving key
	for k, _ := range remote.Data {
		remote.Data[k] = phonyData
	}

	_, err = store.Get(key, "testchunk", 3)
	if err == nil {
		t.Fatalf("expected an error")
	}
	switch e := err.(type) {
	case untrusted.CorruptError:
		break
	default:
		t.Errorf("error is wrong type %T: %#v", e, e)
	}
}
Exemplo n.º 4
0
func (c *casCommand) Setup() (ok bool) {
	path := filepath.Join(cli.Bazil.Config.DataDir.String(), c.Config.Path)
	var kvstore kv.KV
	var err error
	kvstore, err = kvfiles.Open(path)
	if err != nil {
		log.Printf("cannot open CAS: %v", err)
		return false
	}

	if c.Config.Sharing != "" {
		var secret [32]byte
		if err := c.getSharingKey(c.Config.Sharing, &secret); err != nil {
			log.Printf("cannot get sharing key: %q: %v", c.Config.Sharing, err)
			return false
		}
		kvstore = untrusted.New(kvstore, &secret)
	}

	c.State.Store = kvchunks.New(kvstore)
	return true
}
Exemplo n.º 5
0
func TestSimple(t *testing.T) {
	remote := &kvmock.InMemory{}
	secret := &[32]byte{
		42, 42, 42, 42, 42, 42, 42, 42,
		42, 42, 42, 42, 42, 42, 42, 42,
		42, 42, 42, 42, 42, 42, 42, 42,
		42, 42, 42, 42, 42, 42, 42, 42,
	}
	converg := untrusted.New(remote, secret)
	store := kvchunks.New(converg)

	orig := &chunks.Chunk{
		Type:  "testchunk",
		Level: 3,
		Buf:   []byte(GREETING),
	}
	key, err := store.Add(orig)
	if err != nil {
		t.Fatalf("store.Add failed: %v", err)
	}

	got, err := store.Get(key, "testchunk", 3)
	if err != nil {
		t.Fatalf("store.Get failed: %v", err)
	}
	if got == nil {
		t.Fatalf("store.Get gave nil chunk")
	}
	if g, e := got.Type, "testchunk"; g != e {
		t.Errorf("unexpected chunk data: %v != %v", g, e)
	}
	if g, e := got.Level, uint8(3); g != e {
		t.Errorf("unexpected chunk data: %v != %v", g, e)
	}
	if g, e := string(got.Buf), GREETING; g != e {
		t.Errorf("unexpected chunk data: %v != %v", g, e)
	}
}