permissionlesstech/bitchat-android
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Fix Android fragmentation for iOS/Rust compatibility

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- Changed MAX_FRAGMENT_SIZE from 500 to 150 bytes to match iOS/Rust
- Fixed fragment ID generation to use 8 random bytes instead of string
- Implemented automatic fragmentation in BluetoothConnectionManager
- Added 20ms delay between fragments to match iOS/Rust implementation
- Updated fragment calculation to account for full packet overhead (34 bytes)

This ensures Android-generated fragments fit within iOS's default 185-byte BLE MTU,
fixing issues with commands like ?ls -la and ?ifconfig failing on iOS devices.
This commit is contained in:
ShilohEye
2025-07-10 19:25:52 -04:00
parent c585b5c4ac
commit 33d273f268
3 changed files with 42 additions and 16 deletions
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app/src/main/java/com/bitchat/android/mesh/BluetoothMeshService.kt
+1 -1
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@@ -44,7 +44,7 @@ class BluetoothMeshService(private val context: Context) {
private val securityManager = SecurityManager(encryptionService, myPeerID)
private val storeForwardManager = StoreForwardManager()
private val messageHandler = MessageHandler(myPeerID)
internal val connectionManager = BluetoothConnectionManager(context, myPeerID) // Made internal for access
internal val connectionManager = BluetoothConnectionManager(context, myPeerID, fragmentManager) // Made internal for access
private val packetProcessor = PacketProcessor(myPeerID)
// Delegate for message callbacks (maintains same interface)