feat: discovery

Reviewed-on: PeterCxy/OpenEUICC#166
Co-authored-by: septs <github@septs.pw>
Co-committed-by: septs <github@septs.pw>

app-common/src/main/java/im/angry/openeuicc/core/LocalProfileAssistantWrapper.kt

@@ -1,9 +1,11 @@
 package im.angry.openeuicc.core
 
+import net.typeblog.lpac_jni.EuiccConfiguredAddresses
 import net.typeblog.lpac_jni.EuiccInfo2
 import net.typeblog.lpac_jni.LocalProfileAssistant
 import net.typeblog.lpac_jni.LocalProfileInfo
 import net.typeblog.lpac_jni.LocalProfileNotification
+import net.typeblog.lpac_jni.ProfileDiscoveryCallback
 import net.typeblog.lpac_jni.ProfileDownloadCallback
 
 class LocalProfileAssistantWrapper(orig: LocalProfileAssistant) :
@@ -32,6 +34,9 @@ class LocalProfileAssistantWrapper(orig: LocalProfileAssistant) :
 
     override fun setEs10xMss(mss: Byte) = lpa.setEs10xMss(mss)
 
+    override fun getEuiccConfiguredAddresses(): EuiccConfiguredAddresses =
+        lpa.getEuiccConfiguredAddresses()
+
     override fun enableProfile(iccid: String, refresh: Boolean): Boolean =
         lpa.enableProfile(iccid, refresh)
 
@@ -48,6 +53,9 @@ class LocalProfileAssistantWrapper(orig: LocalProfileAssistant) :
         callback: ProfileDownloadCallback
     ) = lpa.downloadProfile(smdp, matchingId, imei, confirmationCode, callback)
 
+    override fun discoveryProfile(smds: String, imei: String?, callback: ProfileDiscoveryCallback) =
+        lpa.discoveryProfile(smds, imei, callback)
+
     override fun deleteNotification(seqNumber: Long): Boolean = lpa.deleteNotification(seqNumber)
 
     override fun handleNotification(seqNumber: Long): Boolean = lpa.handleNotification(seqNumber)

app-common/src/main/java/im/angry/openeuicc/ui/wizard/DownloadWizardActivity.kt

@@ -21,6 +21,7 @@ import im.angry.openeuicc.ui.BaseEuiccAccessActivity
 import im.angry.openeuicc.util.*
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import net.typeblog.lpac_jni.LocalProfileAssistant
 
 class DownloadWizardActivity: BaseEuiccAccessActivity() {
@@ -28,6 +29,7 @@ class DownloadWizardActivity: BaseEuiccAccessActivity() {
         var currentStepFragmentClassName: String?,
         var selectedLogicalSlot: Int,
         var smdp: String,
+        var smds: String?,
         var matchingId: String?,
         var confirmationCode: String?,
         var imei: String?,
@@ -67,6 +69,7 @@ class DownloadWizardActivity: BaseEuiccAccessActivity() {
             currentStepFragmentClassName = null,
             selectedLogicalSlot = intent.getIntExtra("selectedLogicalSlot", 0),
             smdp = "",
+            smds = null,
             matchingId = null,
             confirmationCode = null,
             imei = null,

app-common/src/main/java/im/angry/openeuicc/ui/wizard/DownloadWizardMethodSelectFragment.kt

@@ -2,8 +2,10 @@ package im.angry.openeuicc.ui.wizard
 
 import android.app.AlertDialog
 import android.content.ClipboardManager
+import android.graphics.Bitmap
 import android.graphics.BitmapFactory
 import android.os.Bundle
+import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -11,6 +13,8 @@ import android.widget.ImageView
 import android.widget.TextView
 import android.widget.Toast
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.annotation.DrawableRes
+import androidx.annotation.StringRes
 import androidx.lifecycle.lifecycleScope
 import androidx.recyclerview.widget.DividerItemDecoration
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -25,18 +29,15 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 
 class DownloadWizardMethodSelectFragment : DownloadWizardActivity.DownloadWizardStepFragment() {
-    data class DownloadMethod(
-        val iconRes: Int,
-        val titleRes: Int,
-        val onClick: () -> Unit
-    )
+    companion object {
+        const val TAG = "DownloadWizardMethodSelectFragment"
+    }
 
     // TODO: Maybe we should find a better barcode scanner (or an external one?)
-    private val barcodeScannerLauncher = registerForActivityResult(ScanContract()) { result ->
-        result.contents?.let { content ->
-            processLpaString(content)
+    private val barcodeScannerLauncher =
+        registerForActivityResult(ScanContract()) {
+            it.contents?.let(::processLPAString)
         }
-    }
 
     private val gallerySelectorLauncher =
         registerForActivityResult(ActivityResultContracts.GetContent()) { result ->
@@ -51,30 +52,36 @@ class DownloadWizardMethodSelectFragment : DownloadWizardActivity.DownloadWizard
                     }
                 }
 
-                decoded.getOrNull()?.let { processLpaString(it) }
+                decoded.getOrNull()?.let { processLPAString(it) }
             }
         }
 
-    val downloadMethods = arrayOf(
-        DownloadMethod(R.drawable.ic_scan_black, R.string.download_wizard_method_qr_code) {
-            barcodeScannerLauncher.launch(ScanOptions().apply {
-                setDesiredBarcodeFormats(ScanOptions.QR_CODE)
-                setOrientationLocked(false)
-            })
-        },
-        DownloadMethod(R.drawable.ic_gallery_black, R.string.download_wizard_method_gallery) {
+    private fun getDownloadMethods() = buildList {
+        add(DownloadMethod(R.drawable.ic_scan_black, R.string.download_wizard_method_qr_code) {
+            val options = ScanOptions()
+                .setDesiredBarcodeFormats(ScanOptions.QR_CODE)
+                .setOrientationLocked(false)
+            barcodeScannerLauncher.launch(options)
+        })
+        add(DownloadMethod(R.drawable.ic_gallery_black, R.string.download_wizard_method_gallery) {
             gallerySelectorLauncher.launch("image/*")
-        },
-        DownloadMethod(R.drawable.ic_paste_go, R.string.download_wizard_method_clipboard) {
+        })
+        add(DownloadMethod(R.drawable.ic_paste_go, R.string.download_wizard_method_clipboard) {
             handleLoadFromClipboard()
-        },
-        DownloadMethod(R.drawable.ic_edit, R.string.download_wizard_method_manual) {
+        })
+        if (state.smds != null) add(
+            DownloadMethod(R.drawable.ic_search, R.string.download_wizard_method_discovery) {
+                gotoNextFragment(DownloadWizardDetailsFragment())
+            }
+        )
+        add(DownloadMethod(R.drawable.ic_edit, R.string.download_wizard_method_manual) {
             gotoNextFragment(DownloadWizardDetailsFragment())
-        }
-    )
+        })
+    }
 
     override val hasNext: Boolean
         get() = false
+
     override val hasPrev: Boolean
         get() = true
 
@@ -88,38 +95,29 @@ class DownloadWizardMethodSelectFragment : DownloadWizardActivity.DownloadWizard
         inflater: LayoutInflater,
         container: ViewGroup?,
         savedInstanceState: Bundle?
-    ): View? {
-        val view = inflater.inflate(R.layout.fragment_download_method_select, container, false)
-        val recyclerView = view.requireViewById<RecyclerView>(R.id.download_method_list)
-        recyclerView.adapter = DownloadMethodAdapter()
-        recyclerView.layoutManager =
-            LinearLayoutManager(view.context, LinearLayoutManager.VERTICAL, false)
-        recyclerView.addItemDecoration(
-            DividerItemDecoration(
-                requireContext(),
-                LinearLayoutManager.VERTICAL
-            )
-        )
-        return view
-    }
+    ): View =
+        inflater.inflate(R.layout.fragment_download_method_select, container, false).apply {
+            requireViewById<RecyclerView>(R.id.download_method_list).apply {
+                adapter = DownloadMethodAdapter(getDownloadMethods())
+                layoutManager = LinearLayoutManager(context, LinearLayoutManager.VERTICAL, false)
+                addItemDecoration(DividerItemDecoration(context, LinearLayoutManager.VERTICAL))
+            }
+        }
 
     private fun handleLoadFromClipboard() {
         val clipboard = requireContext().getSystemService(ClipboardManager::class.java)
         val text = clipboard.primaryClip?.getItemAt(0)?.text
 
         if (text == null) {
-            Toast.makeText(
-                requireContext(),
-                R.string.profile_download_no_lpa_string,
-                Toast.LENGTH_SHORT
-            ).show()
+            val resId = R.string.profile_download_no_lpa_string
+            Toast.makeText(requireContext(), resId, Toast.LENGTH_SHORT).show()
             return
         }
 
-        processLpaString(text.toString())
+        processLPAString(text.toString())
     }
 
-    private fun processLpaString(input: String) {
+    private fun processLPAString(input: String) {
         try {
             val parsed = LPAString.parse(input)
             state.smdp = parsed.address
@@ -136,38 +134,39 @@ class DownloadWizardMethodSelectFragment : DownloadWizardActivity.DownloadWizard
             }
         }
     }
+}
 
-    private inner class DownloadMethodViewHolder(private val root: View) : ViewHolder(root) {
-        private val icon = root.requireViewById<ImageView>(R.id.download_method_icon)
-        private val title = root.requireViewById<TextView>(R.id.download_method_title)
+private data class DownloadMethod(
+    @DrawableRes
+    val iconRes: Int,
+    @StringRes
+    val titleRes: Int,
+    val disabled: Boolean = false,
+    val onClick: () -> Unit
+)
 
-        fun bind(item: DownloadMethod) {
-            icon.setImageResource(item.iconRes)
-            title.setText(item.titleRes)
-            root.setOnClickListener {
-                // If the user elected to use another download method, reset the confirmation code flag
-                // too
-                state.confirmationCodeRequired = false
-                item.onClick()
-            }
-        }
+private class DownloadMethodViewHolder(private val root: View) : ViewHolder(root) {
+    private val icon: ImageView = root.requireViewById(R.id.download_method_icon)
+    private val title: TextView = root.requireViewById(R.id.download_method_title)
+
+    fun bind(item: DownloadMethod) {
+        icon.setImageResource(item.iconRes)
+        title.setText(item.titleRes)
+        root.setOnClickListener { item.onClick() }
     }
+}
 
-    private inner class DownloadMethodAdapter : RecyclerView.Adapter<DownloadMethodViewHolder>() {
-        override fun onCreateViewHolder(
-            parent: ViewGroup,
-            viewType: Int
-        ): DownloadMethodViewHolder {
-            val view = LayoutInflater.from(parent.context)
-                .inflate(R.layout.download_method_item, parent, false)
-            return DownloadMethodViewHolder(view)
-        }
+private class DownloadMethodAdapter(private val methods: List<DownloadMethod>) :
+    RecyclerView.Adapter<DownloadMethodViewHolder>() {
 
-        override fun getItemCount(): Int = downloadMethods.size
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) =
+        LayoutInflater.from(parent.context)
+            .inflate(R.layout.download_method_item, parent, false)
+            .let { DownloadMethodViewHolder(it) }
 
-        override fun onBindViewHolder(holder: DownloadMethodViewHolder, position: Int) {
-            holder.bind(downloadMethods[position])
-        }
+    override fun getItemCount(): Int = methods.size
 
+    override fun onBindViewHolder(holder: DownloadMethodViewHolder, position: Int) {
+        holder.bind(methods[position])
     }
 }

app-common/src/main/java/im/angry/openeuicc/ui/wizard/DownloadWizardSlotSelectFragment.kt

@@ -2,6 +2,7 @@ package im.angry.openeuicc.ui.wizard
 
 import android.annotation.SuppressLint
 import android.os.Bundle
+import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -19,7 +20,7 @@ import im.angry.openeuicc.util.*
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.toList
 import kotlinx.coroutines.launch
-import net.typeblog.lpac_jni.LocalProfileInfo
+import net.typeblog.lpac_jni.EuiccConfiguredAddresses
 
 class DownloadWizardSlotSelectFragment : DownloadWizardActivity.DownloadWizardStepFragment() {
     companion object {
@@ -37,6 +38,7 @@ class DownloadWizardSlotSelectFragment : DownloadWizardActivity.DownloadWizardSt
         val imei: String,
         val enabledProfileName: String?,
         val intrinsicChannelName: String?,
+        val euiccConfiguredAddresses: EuiccConfiguredAddresses
     )
 
     private var loaded = false
@@ -117,6 +119,7 @@ class DownloadWizardSlotSelectFragment : DownloadWizardActivity.DownloadWizardSt
                     },
                     channel.lpa.profiles.enabled?.displayName,
                     channel.intrinsicChannelName,
+                    channel.lpa.getEuiccConfiguredAddresses(),
                 )
             }
         }.toList().sortedBy { it.logicalSlotId }
@@ -129,6 +132,7 @@ class DownloadWizardSlotSelectFragment : DownloadWizardActivity.DownloadWizardSt
         } else {
             if (slots.isNotEmpty()) {
                 state.selectedLogicalSlot = slots[0].logicalSlotId
+                state.smds = slots[0].euiccConfiguredAddresses.rootDSAddress
             }
             0
         }
@@ -168,8 +172,11 @@ class DownloadWizardSlotSelectFragment : DownloadWizardActivity.DownloadWizardSt
             adapter.notifyItemChanged(lastIdx)
             adapter.notifyItemChanged(curIdx)
             // Selected index isn't logical slot ID directly, needs a conversion
-            state.selectedLogicalSlot = adapter.slots[adapter.currentSelectedIdx].logicalSlotId
-            state.imei = adapter.slots[adapter.currentSelectedIdx].imei
+            adapter.slots[adapter.currentSelectedIdx].let {
+                state.selectedLogicalSlot = it.logicalSlotId
+                state.smds = it.euiccConfiguredAddresses.rootDSAddress
+                state.imei = it.imei
+            }
         }
 
         fun bind(item: SlotInfo, idx: Int) {

app-common/src/main/java/im/angry/openeuicc/util/Utils.kt

@@ -93,13 +93,12 @@ inline fun <T> Bitmap.use(f: (Bitmap) -> T): T =
         recycle()
     }
 
-fun decodeQrFromBitmap(bmp: Bitmap): String? =
-     runCatching {
-        val pixels = IntArray(bmp.width * bmp.height)
-        bmp.getPixels(pixels, 0, bmp.width, 0, 0, bmp.width, bmp.height)
+fun decodeQrFromBitmap(bmp: Bitmap): String? {
+    val pixels = IntArray(bmp.width * bmp.height)
+    bmp.getPixels(pixels, 0, bmp.width, 0, 0, bmp.width, bmp.height)
 
-        val luminanceSource = RGBLuminanceSource(bmp.width, bmp.height, pixels)
-        val binaryBmp = BinaryBitmap(HybridBinarizer(luminanceSource))
+    val luminanceSource = RGBLuminanceSource(bmp.width, bmp.height, pixels)
+    val binaryBmp = BinaryBitmap(HybridBinarizer(luminanceSource))
 
-        QRCodeReader().decode(binaryBmp).text
-    }.getOrNull()
+    return QRCodeReader().decode(binaryBmp).text
+}

app-common/src/main/res/drawable/ic_edit.xml

@@ -1,5 +1,10 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
-      
-    <path android:fillColor="@android:color/white" android:pathData="M3,17.25V21h3.75L17.81,9.94l-3.75,-3.75L3,17.25zM20.71,7.04c0.39,-0.39 0.39,-1.02 0,-1.41l-2.34,-2.34c-0.39,-0.39 -1.02,-0.39 -1.41,0l-1.83,1.83 3.75,3.75 1.83,-1.83z"/>
-    
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="?attr/colorControlNormal"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M3,17.25V21h3.75L17.81,9.94l-3.75,-3.75L3,17.25zM20.71,7.04c0.39,-0.39 0.39,-1.02 0,-1.41l-2.34,-2.34c-0.39,-0.39 -1.02,-0.39 -1.41,0l-1.83,1.83 3.75,3.75 1.83,-1.83z" />
 </vector>

app-common/src/main/res/drawable/ic_gallery_black.xml

@@ -1,5 +1,10 @@
-<vector android:height="24dp" android:tint="?attr/colorControlNormal"
-    android:viewportHeight="24" android:viewportWidth="24"
-    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
-    <path android:fillColor="@android:color/white" android:pathData="M22,16L22,4c0,-1.1 -0.9,-2 -2,-2L8,2c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2zM11,12l2.03,2.71L16,11l4,5L8,16l3,-4zM2,6v14c0,1.1 0.9,2 2,2h14v-2L4,20L4,6L2,6z"/>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="?attr/colorControlNormal"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M22,16L22,4c0,-1.1 -0.9,-2 -2,-2L8,2c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2zM11,12l2.03,2.71L16,11l4,5L8,16l3,-4zM2,6v14c0,1.1 0.9,2 2,2h14v-2L4,20L4,6L2,6z" />
 </vector>

app-common/src/main/res/drawable/ic_paste_go.xml

@@ -1,7 +1,13 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="?attr/colorControlNormal" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
-      
-    <path android:fillColor="@android:color/white" android:pathData="M5,5h2v3h10V5h2v6h2V5c0,-1.1 -0.9,-2 -2,-2h-4.18C14.4,1.84 13.3,1 12,1S9.6,1.84 9.18,3H5C3.9,3 3,3.9 3,5v14c0,1.1 0.9,2 2,2h5v-2H5V5zM12,3c0.55,0 1,0.45 1,1s-0.45,1 -1,1s-1,-0.45 -1,-1S11.45,3 12,3z"/>
-      
-    <path android:fillColor="@android:color/white" android:pathData="M18.01,13l-1.42,1.41l1.58,1.58l-6.17,0l0,2l6.17,0l-1.58,1.59l1.42,1.41l3.99,-4z"/>
-    
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="?attr/colorControlNormal"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M5,5h2v3h10V5h2v6h2V5c0,-1.1 -0.9,-2 -2,-2h-4.18C14.4,1.84 13.3,1 12,1S9.6,1.84 9.18,3H5C3.9,3 3,3.9 3,5v14c0,1.1 0.9,2 2,2h5v-2H5V5zM12,3c0.55,0 1,0.45 1,1s-0.45,1 -1,1s-1,-0.45 -1,-1S11.45,3 12,3z" />
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M18.01,13l-1.42,1.41l1.58,1.58l-6.17,0l0,2l6.17,0l-1.58,1.59l1.42,1.41l3.99,-4z" />
 </vector>

app-common/src/main/res/drawable/ic_scan_black.xml

@@ -1,10 +1,10 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
     android:width="24dp"
     android:height="24dp"
+    android:tint="?attr/colorControlNormal"
     android:viewportWidth="24"
-    android:viewportHeight="24"
-    android:tint="?attr/colorControlNormal">
-  <path
-      android:fillColor="@android:color/white"
-      android:pathData="M9.5,6.5v3h-3v-3H9.5M11,5H5v6h6V5L11,5zM9.5,14.5v3h-3v-3H9.5M11,13H5v6h6V13L11,13zM17.5,6.5v3h-3v-3H17.5M19,5h-6v6h6V5L19,5zM13,13h1.5v1.5H13V13zM14.5,14.5H16V16h-1.5V14.5zM16,13h1.5v1.5H16V13zM13,16h1.5v1.5H13V16zM14.5,17.5H16V19h-1.5V17.5zM16,16h1.5v1.5H16V16zM17.5,14.5H19V16h-1.5V14.5zM17.5,17.5H19V19h-1.5V17.5zM22,7h-2V4h-3V2h5V7zM22,22v-5h-2v3h-3v2H22zM2,22h5v-2H4v-3H2V22zM2,2v5h2V4h3V2H2z"/>
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M9.5,6.5v3h-3v-3H9.5M11,5H5v6h6V5L11,5zM9.5,14.5v3h-3v-3H9.5M11,13H5v6h6V13L11,13zM17.5,6.5v3h-3v-3H17.5M19,5h-6v6h6V5L19,5zM13,13h1.5v1.5H13V13zM14.5,14.5H16V16h-1.5V14.5zM16,13h1.5v1.5H16V13zM13,16h1.5v1.5H13V16zM14.5,17.5H16V19h-1.5V17.5zM16,16h1.5v1.5H16V16zM17.5,14.5H19V16h-1.5V14.5zM17.5,17.5H19V19h-1.5V17.5zM22,7h-2V4h-3V2h5V7zM22,22v-5h-2v3h-3v2H22zM2,22h5v-2H4v-3H2V22zM2,2v5h2V4h3V2H2z" />
 </vector>

app-common/src/main/res/drawable/ic_search.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:tint="?attr/colorControlNormal"
+    android:viewportWidth="50"
+    android:viewportHeight="50">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M21,3a17,17 0,1 0,10 31l13,13 3,-3 -13,-13c2,-3 4,-7 4,-11 0,-9 -8,-17 -17,-17ZM21,5a15,15 0,1 1,0 30,15 15,0 0,1 0,-30Z" />
+</vector>

app-common/src/main/res/values/strings.xml

@@ -83,6 +83,7 @@
     <string name="download_wizard_method_gallery">Load a QR code from gallery</string>
     <string name="download_wizard_method_clipboard">Load from Clipboard</string>
     <string name="download_wizard_method_manual">Enter manually</string>
+    <string name="download_wizard_method_discovery">Discovery</string>
     <string name="download_wizard_details">Input or confirm details for downloading your eSIM:</string>
     <string name="download_wizard_progress">Downloading your eSIM…</string>
     <string name="download_wizard_progress_step_preparing">Preparing</string>

app-common/src/main/res/xml/pref_settings.xml

@@ -71,7 +71,6 @@
 
         <CheckBoxPreference
             app:iconSpaceReserved="false"
-            app:isPreferenceVisible="false"
             app:key="pref_developer_euicc_memory_reset"
             app:summary="@string/pref_developer_euicc_memory_reset_desc"
             app:title="@string/pref_developer_euicc_memory_reset" />

libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/EuiccConfiguredAddresses.kt

@@ -0,0 +1,15 @@
+package net.typeblog.lpac_jni
+
+class EuiccConfiguredAddresses(defaultDPAddress: String?, rootDSAddress: String?) {
+    val defaultDPAddress: String? = defaultDPAddress
+        .takeUnless { it.isNullOrBlank() }
+    val rootDSAddress = rootDSAddress
+        .takeIf(::isValidDPAddress)
+}
+
+private fun isValidDPAddress(address: String?): Boolean {
+    if (address.isNullOrBlank()) return false
+    if (address.endsWith("gsma.com")) return false
+    if (address.endsWith("example.com")) return false
+    return true
+}

libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/LocalProfileAssistant.kt

@@ -12,6 +12,15 @@ interface LocalProfileAssistant {
         val lastApduException: Exception?,
     ) : Exception("Failed to download profile")
 
+    @Suppress("ArrayInDataClass")
+    data class ProfileDiscoveryException(
+        val lpaErrorReason: String,
+        val lastHttpResponse: HttpResponse?,
+        val lastHttpException: Exception?,
+        val lastApduResponse: ByteArray?,
+        val lastApduException: Exception?,
+    ) : Exception("Failed to discovery profile")
+
     class ProfileRenameException() : Exception("Failed to rename profile")
     class ProfileNameTooLongException() : Exception("Profile name too long")
     class ProfileNameIsInvalidUTF8Exception() : Exception("Profile name is invalid UTF-8")
@@ -30,6 +39,9 @@ interface LocalProfileAssistant {
      */
     fun setEs10xMss(mss: Byte)
 
+    // es10a
+    fun getEuiccConfiguredAddresses(): EuiccConfiguredAddresses
+
     // All blocking functions in this class assume that they are executed on non-Main threads
     // The IO context in Kotlin's coroutine library is recommended.
     fun enableProfile(iccid: String, refresh: Boolean = true): Boolean
@@ -38,6 +50,7 @@ interface LocalProfileAssistant {
 
     fun downloadProfile(smdp: String, matchingId: String?, imei: String?,
                         confirmationCode: String?, callback: ProfileDownloadCallback)
+    fun discoveryProfile(smds: String, imei: String?, callback: ProfileDiscoveryCallback)
 
     fun deleteNotification(seqNumber: Long): Boolean
     fun handleNotification(seqNumber: Long): Boolean

libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/LpacJni.kt

@@ -29,6 +29,12 @@ internal object LpacJni {
     external fun es10bListNotification(handle: Long): Long // A native pointer to a linked list. Handle with linked list-related methods below. May be 0 (null)
     external fun es10bDeleteNotification(handle: Long, seqNumber: Long): Int
 
+    // es10a
+    external fun es10aGetEuiccConfiguredAddresses(handle: Long): EuiccConfiguredAddresses
+
+    // es9p + es11
+    external fun discoveryProfile(handle: Long, address: String, imei: String?, callback: ProfileDiscoveryCallback): Int
+
     // es9p + es10b
     // We do not expose all of the functions because of tediousness :)
     external fun downloadProfile(handle: Long, smdp: String, matchingId: String?, imei: String?,

libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/ProfileDiscoveryCallback.kt

@@ -0,0 +1,5 @@
+package net.typeblog.lpac_jni
+
+interface ProfileDiscoveryCallback {
+    fun onDiscovered(hosts: Array<String>)
+}

libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/ProfileDownloadCallback.kt

@@ -2,15 +2,14 @@ package net.typeblog.lpac_jni
 
 interface ProfileDownloadCallback {
     companion object {
-        fun lookupStateFromProgress(progress: Int): DownloadState =
-            when (progress) {
-                0 -> DownloadState.Preparing
-                20 -> DownloadState.Connecting
-                40 -> DownloadState.Authenticating
-                60 -> DownloadState.Downloading
-                80 -> DownloadState.Finalizing
-                else -> throw IllegalArgumentException("Unknown state")
-            }
+        fun lookupStateFromProgress(progress: Int): DownloadState = when (progress) {
+            0 -> DownloadState.Preparing
+            20 -> DownloadState.Connecting
+            40 -> DownloadState.Authenticating
+            60 -> DownloadState.Downloading
+            80 -> DownloadState.Finalizing
+            else -> throw IllegalArgumentException("Unknown state")
+        }
     }
 
     enum class DownloadState(val progress: Int) {

libs/lpac-jni/src/main/java/net/typeblog/lpac_jni/impl/LocalProfileAssistantImpl.kt

@@ -9,6 +9,7 @@ import net.typeblog.lpac_jni.HttpInterface.HttpResponse
 import net.typeblog.lpac_jni.LocalProfileAssistant
 import net.typeblog.lpac_jni.LocalProfileInfo
 import net.typeblog.lpac_jni.LocalProfileNotification
+import net.typeblog.lpac_jni.ProfileDiscoveryCallback
 import net.typeblog.lpac_jni.ProfileDownloadCallback
 import net.typeblog.lpac_jni.Version
 
@@ -93,6 +94,9 @@ class LocalProfileAssistantImpl(
         LpacJni.euiccSetMss(contextHandle, mss)
     }
 
+    override fun getEuiccConfiguredAddresses() =
+        LpacJni.es10aGetEuiccConfiguredAddresses(contextHandle)
+
     override val valid: Boolean
         get() = !finalized && apduInterface.valid && try {
             // If we can read both eID and euiccInfo2 properly, we are likely looking at
@@ -212,21 +216,32 @@ class LocalProfileAssistantImpl(
             callback
         )
 
-        if (res != 0) {
-            // Construct the error now to store any error information we _can_ access
-            val err = LocalProfileAssistant.ProfileDownloadException(
-                lpaErrorReason = LpacJni.downloadErrCodeToString(-res),
-                httpInterface.lastHttpResponse,
-                httpInterface.lastHttpException,
-                apduInterface.lastApduResponse,
-                apduInterface.lastApduException,
-            )
+        if (res == 0) return
+        // Construct the error now to store any error information we _can_ access
+        val err = LocalProfileAssistant.ProfileDownloadException(
+            lpaErrorReason = LpacJni.downloadErrCodeToString(-res),
+            httpInterface.lastHttpResponse,
+            httpInterface.lastHttpException,
+            apduInterface.lastApduResponse,
+            apduInterface.lastApduException,
+        )
 
-            // Cancel sessions if possible. This will overwrite recorded errors from HTTP and APDU interfaces.
-            LpacJni.cancelSessions(contextHandle)
+        // Cancel sessions if possible. This will overwrite recorded errors from HTTP and APDU interfaces.
+        LpacJni.cancelSessions(contextHandle)
 
-            throw err
-        }
+        throw err
+    }
+
+    override fun discoveryProfile(smds: String, imei: String?, callback: ProfileDiscoveryCallback) {
+        val res = LpacJni.discoveryProfile(contextHandle, smds, imei, callback)
+        if (res == 0) return
+        throw LocalProfileAssistant.ProfileDiscoveryException(
+            lpaErrorReason = LpacJni.downloadErrCodeToString(-res),
+            httpInterface.lastHttpResponse,
+            httpInterface.lastHttpException,
+            apduInterface.lastApduResponse,
+            apduInterface.lastApduException,
+        )
     }
 
     @Synchronized

libs/lpac-jni/src/main/jni/lpac-jni/lpac-discovery.c

@@ -0,0 +1,127 @@
+#include "lpac-notifications.h"
+#include <euicc/es10a.h>
+#include <euicc/es10b.h>
+#include <euicc/es9p.h>
+#include <string.h>
+#include <malloc.h>
+#include <syslog.h>
+
+#define EUICC_CONFIGURED_ADDRESSES_CLASS "net/typeblog/lpac_jni/EuiccConfiguredAddresses"
+
+jclass euicc_configured_addresses_class;
+jmethodID euicc_configured_addresses_constructor;
+
+jmethodID on_discovered;
+
+#define DISCOVERY_CALLBACK_CLASS "net/typeblog/lpac_jni/ProfileDiscoveryCallback"
+#define STRING_CLASS "java/lang/String"
+
+static jobject bind_static_field(JNIEnv *env, jclass clazz, const char *name, const char *sig) {
+    jfieldID field = (*env)->GetStaticFieldID(env, clazz, name, sig);
+    jobject bound = (*env)->GetStaticObjectField(env, clazz, field);
+    return (*env)->NewGlobalRef(env, bound);
+}
+
+void lpac_discovery_init() {
+    LPAC_JNI_SETUP_ENV;
+
+    jclass download_callback_class = (*env)->FindClass(env, DISCOVERY_CALLBACK_CLASS);
+    on_discovered = (*env)->GetMethodID(env, download_callback_class, "onDiscovered",
+                                        "([L" STRING_CLASS ";)V");
+
+    euicc_configured_addresses_class = (*env)->FindClass(env, EUICC_CONFIGURED_ADDRESSES_CLASS);
+    euicc_configured_addresses_class = (*env)->NewGlobalRef(env, euicc_configured_addresses_class);
+    euicc_configured_addresses_constructor = (*env)->GetMethodID(
+            env, euicc_configured_addresses_class, "<init>",
+            "(L" STRING_CLASS ";L" STRING_CLASS ";)V");
+}
+
+JNIEXPORT jobject JNICALL
+Java_net_typeblog_lpac_1jni_LpacJni_es10aGetEuiccConfiguredAddresses(
+        JNIEnv *env,
+        __attribute__((unused)) jobject thiz,
+        jlong handle
+) {
+    struct euicc_ctx *ctx = (struct euicc_ctx *) handle;
+    struct es10a_euicc_configured_addresses addresses;
+    jobject ret = NULL;
+    if (es10a_get_euicc_configured_addresses(ctx, &addresses) == 0) {
+        jstring default_dp_address = toJString(env, addresses.defaultDpAddress);
+        jstring root_ds_address = toJString(env, addresses.rootDsAddress);
+        ret = (*env)->NewObject(env, euicc_configured_addresses_class,
+                                euicc_configured_addresses_constructor,
+                                default_dp_address, root_ds_address);
+    }
+    es10a_euicc_configured_addresses_free(&addresses);
+    return ret;
+}
+
+JNIEXPORT jint JNICALL
+Java_net_typeblog_lpac_1jni_LpacJni_discoveryProfile(
+        JNIEnv *env,
+        __attribute__((unused)) jobject thiz,
+        jlong handle,
+        jstring address,
+        jstring imei,
+        jobject callback,
+) {
+    struct euicc_ctx *ctx = (struct euicc_ctx *) handle;
+
+    const char *_address = (*env)->GetStringUTFChars(env, address, NULL);
+    const char *_imei = NULL;
+
+    if (imei != NULL) {
+        _imei = (*env)->GetStringUTFChars(env, address, NULL);
+    }
+
+    ctx->http.server_address = _address;
+
+    char **smdp_list = NULL;
+    jobjectArray addresses = NULL;
+    int ret = -1;
+
+    ret = es10b_get_euicc_challenge_and_info(ctx);
+    syslog(LOG_INFO, "es10b_get_euicc_challenge_and_info %d", ret);
+    if (ret < 0) {
+        ret = -ES10B_ERROR_REASON_UNDEFINED;
+        goto out;
+    }
+
+    ret = es9p_initiate_authentication(ctx);
+    syslog(LOG_INFO, "es9p_initiate_authentication %d", ret);
+    if (ret < 0) {
+        ret = -ES10B_ERROR_REASON_UNDEFINED;
+        goto out;
+    }
+
+    ret = es10b_authenticate_server(ctx, NULL, _imei);
+    syslog(LOG_INFO, "es10b_authenticate_server %d", ret);
+    if (ret < 0) {
+        ret = -ES10B_ERROR_REASON_UNDEFINED;
+        goto out;
+    }
+
+    ret = es11_authenticate_client(ctx, &smdp_list);
+    if (ret < 0) {
+        ret = -ES10B_ERROR_REASON_UNDEFINED;
+        goto out;
+    }
+
+    jsize n = 0;
+    for (n = 0; smdp_list[n] != NULL; n++) continue;
+
+    addresses = (*env)->NewObjectArray(env, n, string_class, NULL);
+
+    for (jsize index = 0; index < n; index++) {
+        jstring element = toJString(env, smdp_list[index]);
+        (*env)->SetObjectArrayElement(env, addresses, index, element);
+    }
+
+    (*env)->CallVoidMethod(env, callback, on_discovered, addresses);
+
+    out:
+    if (_imei != NULL) (*env)->ReleaseStringUTFChars(env, imei, _imei);
+    (*env)->ReleaseStringUTFChars(env, address, _address);
+    es11_smdp_list_free_all(smdp_list);
+    return ret;
+}

libs/lpac-jni/src/main/jni/lpac-jni/lpac-discovery.h

@@ -0,0 +1,6 @@
+#pragma once
+
+#include <jni.h>
+#include "lpac-jni.h"
+
+void lpac_discovery_init();

libs/lpac-jni/src/main/jni/lpac-jni/lpac-download.c

@@ -11,51 +11,38 @@ jobject download_state_authenticating;
 jobject download_state_downloading;
 jobject download_state_finalizing;
 
-jmethodID on_state_update;
+jmethodID on_discovered;
+
+#define DOWNLOAD_CALLBACK_CLASS "net/typeblog/lpac_jni/ProfileDownloadCallback"
+#define DOWNLOAD_STATE_CLASS DOWNLOAD_CALLBACK_CLASS "$DownloadState"
+
+static jobject bind_static_field(JNIEnv *env, jclass clazz, const char *name, const char *sig) {
+    jfieldID field = (*env)->GetStaticFieldID(env, clazz, name, sig);
+    jobject bound = (*env)->GetStaticObjectField(env, clazz, field);
+    return (*env)->NewGlobalRef(env, bound);
+}
+
+#define BIND_DOWNLOAD_STATE_STATIC_FIELD(NAME, FIELD) \
+    NAME = bind_static_field(env, download_state_class, FIELD, "L" DOWNLOAD_STATE_CLASS ";")
 
 void lpac_download_init() {
     LPAC_JNI_SETUP_ENV;
 
-    jclass download_state_class = (*env)->FindClass(env,
-                                                    "net/typeblog/lpac_jni/ProfileDownloadCallback$DownloadState");
-    jfieldID download_state_preparing_field = (*env)->GetStaticFieldID(env, download_state_class,
-                                                                       "Preparing",
-                                                                       "Lnet/typeblog/lpac_jni/ProfileDownloadCallback$DownloadState;");
-    download_state_preparing = (*env)->GetStaticObjectField(env, download_state_class,
-                                                            download_state_preparing_field);
-    download_state_preparing = (*env)->NewGlobalRef(env, download_state_preparing);
-    jfieldID download_state_connecting_field = (*env)->GetStaticFieldID(env, download_state_class,
-                                                                        "Connecting",
-                                                                        "Lnet/typeblog/lpac_jni/ProfileDownloadCallback$DownloadState;");
-    download_state_connecting = (*env)->GetStaticObjectField(env, download_state_class,
-                                                             download_state_connecting_field);
-    download_state_connecting = (*env)->NewGlobalRef(env, download_state_connecting);
-    jfieldID download_state_authenticating_field = (*env)->GetStaticFieldID(env,
-                                                                            download_state_class,
-                                                                            "Authenticating",
-                                                                            "Lnet/typeblog/lpac_jni/ProfileDownloadCallback$DownloadState;");
-    download_state_authenticating = (*env)->GetStaticObjectField(env, download_state_class,
-                                                                 download_state_authenticating_field);
-    download_state_authenticating = (*env)->NewGlobalRef(env, download_state_authenticating);
-    jfieldID download_state_downloading_field = (*env)->GetStaticFieldID(env, download_state_class,
-                                                                         "Downloading",
-                                                                         "Lnet/typeblog/lpac_jni/ProfileDownloadCallback$DownloadState;");
-    download_state_downloading = (*env)->GetStaticObjectField(env, download_state_class,
-                                                              download_state_downloading_field);
-    download_state_downloading = (*env)->NewGlobalRef(env, download_state_downloading);
-    jfieldID download_state_finalizng_field = (*env)->GetStaticFieldID(env, download_state_class,
-                                                                       "Finalizing",
-                                                                       "Lnet/typeblog/lpac_jni/ProfileDownloadCallback$DownloadState;");
-    download_state_finalizing = (*env)->GetStaticObjectField(env, download_state_class,
-                                                             download_state_finalizng_field);
-    download_state_finalizing = (*env)->NewGlobalRef(env, download_state_finalizing);
+    jclass download_state_class = (*env)->FindClass(env, DOWNLOAD_STATE_CLASS);
 
-    jclass download_callback_class = (*env)->FindClass(env,
-                                                       "net/typeblog/lpac_jni/ProfileDownloadCallback");
-    on_state_update = (*env)->GetMethodID(env, download_callback_class, "onStateUpdate",
-                                          "(Lnet/typeblog/lpac_jni/ProfileDownloadCallback$DownloadState;)V");
+    BIND_DOWNLOAD_STATE_STATIC_FIELD(download_state_preparing, "Preparing");
+    BIND_DOWNLOAD_STATE_STATIC_FIELD(download_state_connecting, "Connecting");
+    BIND_DOWNLOAD_STATE_STATIC_FIELD(download_state_authenticating, "Authenticating");
+    BIND_DOWNLOAD_STATE_STATIC_FIELD(download_state_downloading, "Downloading");
+    BIND_DOWNLOAD_STATE_STATIC_FIELD(download_state_finalizing, "Finalizing");
+
+    jclass download_callback_class = (*env)->FindClass(env, DOWNLOAD_CALLBACK_CLASS);
+    on_discovered = (*env)->GetMethodID(
+            env, download_callback_class, "onStateUpdate", "(L" DOWNLOAD_STATE_CLASS ";)V");
 }
 
+#undef BIND_DOWNLOAD_STATE_STATIC_FIELD
+
 JNIEXPORT jint JNICALL
 Java_net_typeblog_lpac_1jni_LpacJni_downloadProfile(JNIEnv *env, jobject thiz, jlong handle,
                                                     jstring smdp, jstring matching_id,
@@ -79,7 +66,7 @@ Java_net_typeblog_lpac_1jni_LpacJni_downloadProfile(JNIEnv *env, jobject thiz, j
 
     ctx->http.server_address = _smdp;
 
-    (*env)->CallVoidMethod(env, callback, on_state_update, download_state_preparing);
+    (*env)->CallVoidMethod(env, callback, on_discovered, download_state_preparing);
     ret = es10b_get_euicc_challenge_and_info(ctx);
     syslog(LOG_INFO, "es10b_get_euicc_challenge_and_info %d", ret);
     if (ret < 0) {
@@ -87,7 +74,7 @@ Java_net_typeblog_lpac_1jni_LpacJni_downloadProfile(JNIEnv *env, jobject thiz, j
         goto out;
     }
 
-    (*env)->CallVoidMethod(env, callback, on_state_update, download_state_connecting);
+    (*env)->CallVoidMethod(env, callback, on_discovered, download_state_connecting);
     ret = es9p_initiate_authentication(ctx);
     syslog(LOG_INFO, "es9p_initiate_authentication %d", ret);
     if (ret < 0) {
@@ -95,7 +82,7 @@ Java_net_typeblog_lpac_1jni_LpacJni_downloadProfile(JNIEnv *env, jobject thiz, j
         goto out;
     }
 
-    (*env)->CallVoidMethod(env, callback, on_state_update, download_state_authenticating);
+    (*env)->CallVoidMethod(env, callback, on_discovered, download_state_authenticating);
     ret = es10b_authenticate_server(ctx, _matching_id, _imei);
     syslog(LOG_INFO, "es10b_authenticate_server %d", ret);
     if (ret < 0) {
@@ -109,7 +96,7 @@ Java_net_typeblog_lpac_1jni_LpacJni_downloadProfile(JNIEnv *env, jobject thiz, j
         goto out;
     }
 
-    (*env)->CallVoidMethod(env, callback, on_state_update, download_state_downloading);
+    (*env)->CallVoidMethod(env, callback, on_discovered, download_state_downloading);
     ret = es10b_prepare_download(ctx, _confirmation_code);
     syslog(LOG_INFO, "es10b_prepare_download %d", ret);
     if (ret < 0) {
@@ -121,7 +108,7 @@ Java_net_typeblog_lpac_1jni_LpacJni_downloadProfile(JNIEnv *env, jobject thiz, j
     if (ret < 0)
         goto out;
 
-    (*env)->CallVoidMethod(env, callback, on_state_update, download_state_finalizing);
+    (*env)->CallVoidMethod(env, callback, on_discovered, download_state_finalizing);
     ret = es10b_load_bound_profile_package(ctx, &es10b_load_bound_profile_package_result);
     syslog(LOG_INFO, "es10b_load_bound_profile_package %d, reason %d", ret, es10b_load_bound_profile_package_result.errorReason);
     if (ret < 0) {

libs/lpac-jni/src/main/jni/lpac-jni/lpac-jni.c

@@ -8,6 +8,7 @@
 #include "lpac-jni.h"
 #include "lpac-download.h"
 #include "lpac-notifications.h"
+#include "lpac-discovery.h"
 #include "interface-wrapper.h"
 
 JavaVM *jvm = NULL;
@@ -21,6 +22,7 @@ jint JNI_OnLoad(JavaVM *vm, void *reserved) {
     jvm = vm;
     interface_wrapper_init();
     lpac_download_init();
+    lpac_discovery_init();
 
     LPAC_JNI_SETUP_ENV;
     string_class = (*env)->FindClass(env, "java/lang/String");