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OpenEUICC
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Implement TelephonyManagerApduChannel 

This does not work yet because only the LPA which implements
EuiccService can access the channel. Let's hope however everything we
did here *should* work.
This commit is contained in:
Peter Cai 2022-05-02 22:16:18 -04:00
parent e8eeb9e53d
commit 5894dc9a71
2 changed files with 118 additions and 4 deletions
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32
app/src/main/java/im/angry/openeuicc/core/EuiccChannelManager.kt
View File

@ -4,9 +4,11 @@ import android.content.Context
import android.os.Handler
import android.os.HandlerThread
import android.se.omapi.SEService
import android.telephony.TelephonyManager
import android.util.Log
import com.truphone.lpa.ApduChannel
import com.truphone.lpa.impl.LocalProfileAssistantImpl
import im.angry.openeuicc.OpenEuiccApplication
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.runBlocking
import kotlinx.coroutines.withContext
@ -23,6 +25,10 @@ class EuiccChannelManager(private val context: Context) {
private var seService: SEService? = null
private val tm by lazy {
(context.applicationContext as OpenEuiccApplication).telephonyManager
}
private val handler = Handler(HandlerThread("EuiccChannelManager").also { it.start() }.looper)
private suspend fun connectSEService(): SEService = suspendCoroutine { cont ->
@ -50,12 +56,30 @@ class EuiccChannelManager(private val context: Context) {
}
}
val shouldTryTelephonyManager =
tm.uiccCardsInfo.find { it.slotIndex == slotId }?.let {
it.isEuicc && !it.isRemovable
} ?: false
var apduChannel: ApduChannel? = null
var stateManager: EuiccChannelStateManager? = null
OmapiApduChannel.tryConnectUiccSlot(seService!!, slotId)?.let { (_apduChannel, _stateManager) ->
apduChannel = _apduChannel
stateManager = _stateManager
} ?: return null
if (shouldTryTelephonyManager) {
Log.d(TAG, "Using TelephonyManager for slot $slotId")
// TODO: On Tiramisu, we should also connect all available "ports" for MEP support
TelephonyManagerApduChannel.tryConnectUiccSlot(tm, slotId)?.let { (_apduChannel, _stateManager) ->
apduChannel = _apduChannel
stateManager = _stateManager
}
}
if (apduChannel == null || stateManager == null) {
OmapiApduChannel.tryConnectUiccSlot(seService!!, slotId)
?.let { (_apduChannel, _stateManager) ->
apduChannel = _apduChannel
stateManager = _stateManager
} ?: return null
}
val channel = EuiccChannel(slotId, "SIM $slotId", LocalProfileAssistantImpl(apduChannel), stateManager!!)
channels.add(channel)

90
app/src/main/java/im/angry/openeuicc/core/TelephonyManagerApduChannel.kt Normal file
View File

@ -0,0 +1,90 @@
package im.angry.openeuicc.core
import android.telephony.IccOpenLogicalChannelResponse
import android.telephony.IccOpenLogicalChannelResponse.INVALID_CHANNEL
import android.telephony.IccOpenLogicalChannelResponse.STATUS_NO_ERROR
import android.telephony.TelephonyManager
import android.util.Log
import com.truphone.lpa.ApduChannel
import com.truphone.lpa.ApduTransmittedListener
import java.lang.Exception
import java.lang.reflect.Method
class TelephonyManagerApduChannel(
private val tm: TelephonyManager,
private val slotId: Int,
private val channelId: Int) : ApduChannel {
companion object {
private const val TAG = "TelephonyManagerApduChannel"
private const val EUICC_APP_ID = "A0000005591010FFFFFFFF8900000100"
private val iccOpenLogicalChannelBySlot: Method =
TelephonyManager::class.java.getMethod("iccOpenLogicalChannelBySlot",
Int::class.java, String::class.java, Int::class.java)
private val iccCloseLogicalChannelBySlot: Method =
TelephonyManager::class.java.getMethod("iccCloseLogicalChannelBySlot",
Int::class.java, Int::class.java)
private val iccTransmitApduLogicalChannelBySlot: Method =
TelephonyManager::class.java.getMethod("iccTransmitApduLogicalChannelBySlot",
Int::class.java, Int::class.java, Int::class.java, Int::class.java,
Int::class.java, Int::class.java, Int::class.java, String::class.java)
// TODO: On Tiramisu, we need to specify the portId also if we want MEP support
fun tryConnectUiccSlot(tm: TelephonyManager, slotId: Int): Pair<ApduChannel, EuiccChannelStateManager>? {
try {
val channel = iccOpenLogicalChannelBySlot.invoke(tm, slotId, EUICC_APP_ID, 0) as IccOpenLogicalChannelResponse
if (channel.status != STATUS_NO_ERROR || channel.channel == INVALID_CHANNEL) {
Log.e(TAG, "Unable to open eUICC channel for slot ${slotId} via TelephonyManager")
return null
}
val stateManager = object : EuiccChannelStateManager {
override val valid: Boolean
get() = true // TODO: Fix this properly
override fun destroy() {
iccCloseLogicalChannelBySlot.invoke(tm, slotId, channel.channel)
}
}
return Pair(TelephonyManagerApduChannel(tm, slotId, channel.channel), stateManager)
} catch (e: Exception) {
Log.e(TAG, "Unable to open eUICC channel for slot ${slotId} via TelephonyManager")
Log.e(TAG, Log.getStackTraceString(e))
return null
}
}
}
override fun transmitAPDU(apdu: String): String {
val cla = Integer.parseInt(apdu.substring(0, 2), 16)
val instruction = Integer.parseInt(apdu.substring(2, 4), 16)
val p1 = Integer.parseInt(apdu.substring(4, 6), 16)
val p2 = Integer.parseInt(apdu.substring(6, 8), 16)
val p3 = Integer.parseInt(apdu.substring(8, 10), 16)
val p4 = apdu.substring(10)
return iccTransmitApduLogicalChannelBySlot.invoke(
tm, slotId, channelId,
cla, instruction, p1, p2, p3, p4) as String
}
override fun transmitAPDUS(apdus: MutableList<String>): String {
var res = ""
for (pdu in apdus) {
res = transmitAPDU(pdu)
}
return res
}
override fun sendStatus() {
}
override fun setApduTransmittedListener(apduTransmittedListener: ApduTransmittedListener?) {
}
override fun removeApduTransmittedListener(apduTransmittedListener: ApduTransmittedListener?) {
}
}