1 // 2 // Copyright (C) 2013 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 #ifndef SHILL_TETHERING_H_ 18 #define SHILL_TETHERING_H_ 19 20 #include <stdint.h> 21 22 #include <set> 23 #include <vector> 24 25 namespace shill { 26 27 class Tethering { 28 public: 29 // Modern Android phones in tethering mode provide DHCP option 43 even 30 // without a DHCP client requesting it. The constant below is the value 31 // that it provides for this propery. 32 static const char kAndroidVendorEncapsulatedOptions[]; 33 34 // This 802.11 BSS prefix is provided by many Android-based devices. 35 static const uint8_t kAndroidBSSIDPrefix[]; 36 37 // This OUI is provided in 802.11 vendor IEs by many IOS devices in 38 // tethering mode. 39 static const uint32_t kIosOui; 40 41 // This bit, if set in the first octet of a MAC address, indicates that 42 // this address is not assigned by the IEEE, but was generated locally. 43 static const uint8_t kLocallyAdministratedMACBit; 44 45 // Returns whether an 802.11 BSSID is likely to be owned by an Android device. 46 static bool IsAndroidBSSID(const std::vector<uint8_t>& bssid); 47 48 // Returns whether an 802.11 BSSID is a locally-administered address, as 49 // opposed to a unique IEEE-issued address. 50 static bool IsLocallyAdministeredBSSID(const std::vector<uint8_t>& bssid); 51 52 // Returns whether any of the organizationally unique identifiers in 53 // |oui_set| is commonly associated with IOS devices. 54 static bool HasIosOui(const std::set<uint32_t>& oui_set); 55 }; 56 57 } // namespace shill 58 59 #endif // SHILL_TETHERING_H_ 60