probe hw key applications if getDeviceInfo fails

android/app/src/main/kotlin/com/yubico/authenticator/MainActivity.kt

@@ -40,7 +40,6 @@ import androidx.core.view.WindowCompat
 import androidx.lifecycle.lifecycleScope
 import com.google.android.material.color.DynamicColors
 import com.yubico.authenticator.device.DeviceManager
-import com.yubico.authenticator.device.UnknownDevice
 import com.yubico.authenticator.fido.FidoManager
 import com.yubico.authenticator.fido.FidoViewModel
 import com.yubico.authenticator.logging.FlutterLog
@@ -54,7 +53,6 @@ import com.yubico.yubikit.android.transport.nfc.NfcConfiguration
 import com.yubico.yubikit.android.transport.nfc.NfcNotAvailable
 import com.yubico.yubikit.android.transport.nfc.NfcYubiKeyDevice
 import com.yubico.yubikit.android.transport.usb.UsbConfiguration
-import com.yubico.yubikit.core.Transport
 import com.yubico.yubikit.core.YubiKeyDevice
 import io.flutter.embedding.android.FlutterFragmentActivity
 import io.flutter.embedding.engine.FlutterEngine
@@ -273,17 +271,7 @@ class MainActivity : FlutterFragmentActivity() {
 
     private fun processYubiKey(device: YubiKeyDevice) {
         lifecycleScope.launch {
-
-            val deviceInfo = try {
-                getDeviceInfo(device)
-            } catch (e: IllegalArgumentException) {
-                logger.debug("Device was not recognized")
-                UnknownDevice.copy(isNfc = device.transport == Transport.NFC)
-            } catch (e: Exception) {
-                logger.error("Failure getting device info", e)
-                null
-            }
-
+            val deviceInfo = getDeviceInfo(device)
             deviceManager.setDeviceInfo(deviceInfo)
 
             if (deviceInfo == null) {

android/app/src/main/kotlin/com/yubico/authenticator/device/UnknownDevice.kt

@@ -1,5 +1,7 @@
 package com.yubico.authenticator.device
 
+import com.yubico.yubikit.core.Transport
+import com.yubico.yubikit.management.Capability
 import com.yubico.yubikit.management.FormFactor
 
 val UnknownDevice = Info(
@@ -20,4 +22,29 @@ val UnknownDevice = Info(
     usbPid = null,
     pinComplexity = false,
     supportedCapabilities = Capabilities()
-)
+)
+
+fun unknownDeviceWithCapability(transport: Transport, bit: Int = 0) : Info {
+    val isNfc = transport == Transport.NFC
+    val capabilities = Capabilities(
+        nfc = if (isNfc)  bit else null,
+        usb = if (!isNfc) bit else null
+    )
+    return UnknownDevice.copy(
+        isNfc = isNfc,
+        config = UnknownDevice.config.copy(enabledCapabilities = capabilities),
+        supportedCapabilities = capabilities
+    )
+}
+
+fun unknownOathDeviceInfo(transport: Transport) : Info {
+    return unknownDeviceWithCapability(transport, Capability.OATH.bit).copy(
+        name = "OATH device"
+    )
+}
+
+fun unknownFido2DeviceInfo(transport: Transport) : Info {
+    return unknownDeviceWithCapability(transport, Capability.FIDO2.bit).copy(
+        name = "FIDO2 device"
+    )
+}

android/app/src/main/kotlin/com/yubico/authenticator/yubikit/DeviceInfoHelper.kt

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2022-2023 Yubico.
+ * Copyright (C) 2022-2024 Yubico.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,18 +18,24 @@ package com.yubico.authenticator.yubikit
 
 import com.yubico.authenticator.device.Info
 import com.yubico.authenticator.compatUtil
+import com.yubico.authenticator.device.unknownDeviceWithCapability
+import com.yubico.authenticator.device.unknownFido2DeviceInfo
+import com.yubico.authenticator.device.unknownOathDeviceInfo
 import com.yubico.yubikit.android.transport.nfc.NfcYubiKeyDevice
 import com.yubico.yubikit.android.transport.usb.UsbYubiKeyDevice
 import com.yubico.yubikit.core.YubiKeyDevice
+import com.yubico.yubikit.core.application.ApplicationNotAvailableException
 import com.yubico.yubikit.core.fido.FidoConnection
 import com.yubico.yubikit.core.otp.OtpConnection
 import com.yubico.yubikit.core.smartcard.SmartCardConnection
+import com.yubico.yubikit.fido.ctap.Ctap2Session
 import com.yubico.yubikit.management.DeviceInfo
+import com.yubico.yubikit.oath.OathSession
 import com.yubico.yubikit.support.DeviceUtil
 
 import org.slf4j.LoggerFactory
 
-suspend fun getDeviceInfo(device: YubiKeyDevice): Info {
+suspend fun getDeviceInfo(device: YubiKeyDevice): Info? {
     val pid = (device as? UsbYubiKeyDevice)?.pid
     val logger = LoggerFactory.getLogger("getDeviceInfo")
 
@@ -45,8 +51,31 @@ suspend fun getDeviceInfo(device: YubiKeyDevice): Info {
         logger.debug("FIDO connection not available: {}", t.message)
         return SkyHelper(compatUtil).getDeviceInfo(device)
     }.getOrElse {
-        logger.debug("Failed to recognize device: {}", it.message)
-        throw it
+        // this is not a YubiKey
+        logger.debug("Probing unknown device")
+        try {
+            device.openConnection(SmartCardConnection::class.java).use { smartCardConnection ->
+                try {
+                    // if OATH session is available use it
+                    OathSession(smartCardConnection)
+                    logger.debug("Device supports OATH")
+                    return unknownOathDeviceInfo(device.transport)
+                } catch (applicationNotAvailable: ApplicationNotAvailableException) {
+                    try {
+                        // probe for CTAP2 availability
+                        Ctap2Session(smartCardConnection)
+                        logger.debug("Device supports FIDO2")
+                        return unknownFido2DeviceInfo(device.transport)
+                    } catch (applicationNotAvailable: ApplicationNotAvailableException) {
+                        logger.debug("Device not recognized")
+                        return unknownDeviceWithCapability(device.transport)
+                    }
+                }
+            }
+        } catch (e: Exception) {
+            // no smart card connectivity
+            return null
+        }
     }
 
     val name = DeviceUtil.getName(deviceInfo, pid?.type)

lib/home/views/home_screen.dart

@@ -141,7 +141,9 @@ class _DeviceContent extends ConsumerWidget {
 
     final name = deviceData.name;
     final serial = deviceData.info.serial;
-    final version = deviceData.info.version;
+    final version = deviceData.info.version == const Version(0, 0, 0)
+        ? 'unknown'
+        : deviceData.info.version;
 
     final label = initialCustomization?.name;
     String displayName = label != null ? '$label ($name)' : name;