1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.wifi.aware; 18 19 import android.hardware.wifi.V1_0.NanCipherSuiteType; 20 import android.net.wifi.aware.Characteristics; 21 import android.os.Bundle; 22 23 /** 24 * A container class for Aware (vendor) implementation capabilities (or 25 * limitations). Filled-in by the firmware. 26 */ 27 public class Capabilities { 28 public int maxConcurrentAwareClusters; 29 public int maxPublishes; 30 public int maxSubscribes; 31 public int maxServiceNameLen; 32 public int maxMatchFilterLen; 33 public int maxTotalMatchFilterLen; 34 public int maxServiceSpecificInfoLen; 35 public int maxExtendedServiceSpecificInfoLen; 36 public int maxNdiInterfaces; 37 public int maxNdpSessions; 38 public int maxAppInfoLen; 39 public int maxQueuedTransmitMessages; 40 public int maxSubscribeInterfaceAddresses; 41 public int supportedCipherSuites; 42 public boolean isInstantCommunicationModeSupported; 43 44 /** 45 * Converts the internal capabilities to a parcelable & potentially app-facing 46 * characteristics bundle. Only some of the information is exposed. 47 */ toPublicCharacteristics()48 public Characteristics toPublicCharacteristics() { 49 Bundle bundle = new Bundle(); 50 bundle.putInt(Characteristics.KEY_MAX_SERVICE_NAME_LENGTH, maxServiceNameLen); 51 bundle.putInt(Characteristics.KEY_MAX_SERVICE_SPECIFIC_INFO_LENGTH, 52 maxServiceSpecificInfoLen); 53 bundle.putInt(Characteristics.KEY_MAX_MATCH_FILTER_LENGTH, maxMatchFilterLen); 54 bundle.putInt(Characteristics.KEY_SUPPORTED_CIPHER_SUITES, 55 toPublicCipherSuites(supportedCipherSuites)); 56 bundle.putBoolean(Characteristics.KEY_IS_INSTANT_COMMUNICATION_MODE_SUPPORTED, 57 isInstantCommunicationModeSupported); 58 return new Characteristics(bundle); 59 } 60 toPublicCipherSuites(int nativeCipherSuites)61 private int toPublicCipherSuites(int nativeCipherSuites) { 62 int publicCipherSuites = 0; 63 64 if ((nativeCipherSuites & NanCipherSuiteType.SHARED_KEY_128_MASK) != 0) { 65 publicCipherSuites |= Characteristics.WIFI_AWARE_CIPHER_SUITE_NCS_SK_128; 66 } 67 if ((nativeCipherSuites & NanCipherSuiteType.SHARED_KEY_256_MASK) != 0) { 68 publicCipherSuites |= Characteristics.WIFI_AWARE_CIPHER_SUITE_NCS_SK_256; 69 } 70 71 return publicCipherSuites; 72 } 73 74 @Override toString()75 public String toString() { 76 return "Capabilities [maxConcurrentAwareClusters=" + maxConcurrentAwareClusters 77 + ", maxPublishes=" + maxPublishes + ", maxSubscribes=" + maxSubscribes 78 + ", maxServiceNameLen=" + maxServiceNameLen + ", maxMatchFilterLen=" 79 + maxMatchFilterLen + ", maxTotalMatchFilterLen=" + maxTotalMatchFilterLen 80 + ", maxServiceSpecificInfoLen=" + maxServiceSpecificInfoLen 81 + ", maxExtendedServiceSpecificInfoLen=" + maxExtendedServiceSpecificInfoLen 82 + ", maxNdiInterfaces=" + maxNdiInterfaces + ", maxNdpSessions=" 83 + maxNdpSessions + ", maxAppInfoLen=" + maxAppInfoLen 84 + ", maxQueuedTransmitMessages=" + maxQueuedTransmitMessages 85 + ", maxSubscribeInterfaceAddresses=" + maxSubscribeInterfaceAddresses 86 + ", supportedCipherSuites=" + supportedCipherSuites 87 + ", isInstantCommunicationModeSupport=" + isInstantCommunicationModeSupported 88 + "]"; 89 } 90 } 91