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reduce fragment size

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Dario 2025-07-21 13:00:56 +02:00
parent 079f36664c
commit e2f6e4a298
1 changed files with 1 additions and 1 deletions
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bitchat/Services/BluetoothMeshService.swift
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@ -171,7 +171,7 @@ class BluetoothMeshService: NSObject {
// Fragment handling with security limits
private var incomingFragments: [String: [Int: Data]] = [:] // fragmentID -> [index: data]
private var fragmentMetadata: [String: (originalType: UInt8, totalFragments: Int, timestamp: Date)] = [:]
private let maxFragmentSize = 500 // Optimized for BLE 5.0 extended data length
private let maxFragmentSize = 469 // 512 bytes max MTU - 43 bytes for headers and metadata
private let maxConcurrentFragmentSessions = 20 // Limit concurrent fragment sessions to prevent DoS
private let fragmentTimeout: TimeInterval = 30 // 30 seconds timeout for incomplete fragments