forked from cerc-io/plugeth
accounts/usbwallet: detect and report in Ledger is in browser mode
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26cd41f0c7
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c7022c1a0c
@ -74,6 +74,11 @@ const (
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ledgerP2ReturnAddressChainCode ledgerParam2 = 0x01 // Require a user confirmation before returning the address
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)
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// errReplyInvalidHeader is the error message returned by a Ledfer data exchange
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// if the device replies with a mismatching header. This usually means the device
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// is in browser mode.
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var errReplyInvalidHeader = errors.New("invalid reply header")
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// ledgerWallet represents a live USB Ledger hardware wallet.
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type ledgerWallet struct {
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context *usb.Context // USB context to interface libusb through
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@ -87,6 +92,7 @@ type ledgerWallet struct {
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failure error // Any failure that would make the device unusable
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version [3]byte // Current version of the Ledger Ethereum app (zero if app is offline)
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browser bool // Flag whether the Ledger is in browser mode (reply channel mismatch)
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accounts []accounts.Account // List of derive accounts pinned on the Ledger
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paths map[common.Address]accounts.DerivationPath // Known derivation paths for signing operations
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@ -138,6 +144,9 @@ func (w *ledgerWallet) Status() string {
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if w.device == nil {
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return "Closed"
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}
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if w.browser {
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return "Ethereum app in browser mode"
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}
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if w.offline() {
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return "Ethereum app offline"
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}
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@ -239,7 +248,10 @@ func (w *ledgerWallet) Open(passphrase string) error {
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}()
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if _, err = w.ledgerDerive(accounts.DefaultBaseDerivationPath); err != nil {
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// Ethereum app is not running, nothing more to do, return
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// Ethereum app is not running or in browser mode, nothing more to do, return
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if err == errReplyInvalidHeader {
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w.browser = true
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}
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return nil
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}
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// Try to resolve the Ethereum app's version, will fail prior to v1.0.2
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@ -351,7 +363,8 @@ func (w *ledgerWallet) close() error {
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err := w.device.Close()
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w.device, w.input, w.output = nil, nil, nil
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w.version, w.accounts, w.paths = [3]byte{}, nil, nil
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w.browser, w.version = false, [3]byte{}
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w.accounts, w.paths = nil, nil
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return err
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}
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@ -463,7 +476,7 @@ func (w *ledgerWallet) selfDerive() {
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// Display a log message to the user for new (or previously empty accounts)
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if _, known := w.paths[nextAddr]; !known || (!empty && nextAddr == w.deriveNextAddr) {
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glog.V(logger.Info).Infof("%s discovered %s (balance %d, nonce %d) at %s", w.url.String(), nextAddr.Hex(), balance, nonce, path)
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glog.V(logger.Info).Infof("%s discovered %s (balance %22v, nonce %4d) at %s", w.url.String(), nextAddr.Hex(), balance, nonce, path)
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}
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// Fetch the next potential account
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if !empty {
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@ -909,7 +922,7 @@ func (w *ledgerWallet) ledgerExchange(opcode ledgerOpcode, p1 ledgerParam1, p2 l
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}
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// Make sure the transport header matches
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if chunk[0] != 0x01 || chunk[1] != 0x01 || chunk[2] != 0x05 {
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return nil, fmt.Errorf("invalid reply header: %x", chunk[:3])
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return nil, errReplyInvalidHeader
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}
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// If it's the first chunk, retrieve the total message length
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if chunk[3] == 0x00 && chunk[4] == 0x00 {
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