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      1 /*
      2  * hidl interface for wpa_supplicant daemon
      3  * Copyright (c) 2004-2016, Jouni Malinen <j (at) w1.fi>
      4  * Copyright (c) 2004-2016, Roshan Pius <rpius (at) google.com>
      5  *
      6  * This software may be distributed under the terms of the BSD license.
      7  * See README for more details.
      8  */
      9 
     10 #ifndef WPA_SUPPLICANT_HIDL_STA_IFACE_H
     11 #define WPA_SUPPLICANT_HIDL_STA_IFACE_H
     12 
     13 #include <array>
     14 #include <vector>
     15 
     16 #include <android-base/macros.h>
     17 
     18 #include <android/hardware/wifi/supplicant/1.0/ISupplicantStaIface.h>
     19 #include <android/hardware/wifi/supplicant/1.0/ISupplicantStaIfaceCallback.h>
     20 #include <android/hardware/wifi/supplicant/1.0/ISupplicantStaNetwork.h>
     21 
     22 extern "C" {
     23 #include "utils/common.h"
     24 #include "utils/includes.h"
     25 #include "wpa_supplicant_i.h"
     26 #include "config.h"
     27 #include "driver_i.h"
     28 #include "wpa.h"
     29 }
     30 
     31 namespace android {
     32 namespace hardware {
     33 namespace wifi {
     34 namespace supplicant {
     35 namespace V1_0 {
     36 namespace implementation {
     37 
     38 /**
     39  * Implementation of StaIface hidl object. Each unique hidl
     40  * object is used for control operations on a specific interface
     41  * controlled by wpa_supplicant.
     42  */
     43 class StaIface
     44     : public android::hardware::wifi::supplicant::V1_0::ISupplicantStaIface
     45 {
     46 public:
     47 	StaIface(struct wpa_global* wpa_global, const char ifname[]);
     48 	~StaIface() override = default;
     49 	// HIDL does not provide a built-in mechanism to let the server
     50 	// invalidate a HIDL interface object after creation. If any client
     51 	// process holds onto a reference to the object in their context,
     52 	// any method calls on that reference will continue to be directed to
     53 	// the server.
     54 	// However Supplicant HAL needs to control the lifetime of these
     55 	// objects. So, add a public |invalidate| method to all |Iface| and
     56 	// |Network| objects.
     57 	// This will be used to mark an object invalid when the corresponding
     58 	// iface or network is removed.
     59 	// All HIDL method implementations should check if the object is still
     60 	// marked valid before processing them.
     61 	void invalidate();
     62 	bool isValid();
     63 
     64 	// Hidl methods exposed.
     65 	Return<void> getName(getName_cb _hidl_cb) override;
     66 	Return<void> getType(getType_cb _hidl_cb) override;
     67 	Return<void> addNetwork(addNetwork_cb _hidl_cb) override;
     68 	Return<void> removeNetwork(
     69 	    SupplicantNetworkId id, removeNetwork_cb _hidl_cb) override;
     70 	Return<void> getNetwork(
     71 	    SupplicantNetworkId id, getNetwork_cb _hidl_cb) override;
     72 	Return<void> listNetworks(listNetworks_cb _hidl_cb) override;
     73 	Return<void> registerCallback(
     74 	    const sp<ISupplicantStaIfaceCallback>& callback,
     75 	    registerCallback_cb _hidl_cb) override;
     76 	Return<void> reassociate(reassociate_cb _hidl_cb) override;
     77 	Return<void> reconnect(reconnect_cb _hidl_cb) override;
     78 	Return<void> disconnect(disconnect_cb _hidl_cb) override;
     79 	Return<void> setPowerSave(
     80 	    bool enable, setPowerSave_cb _hidl_cb) override;
     81 	Return<void> initiateTdlsDiscover(
     82 	    const hidl_array<uint8_t, 6>& mac_address,
     83 	    initiateTdlsDiscover_cb _hidl_cb) override;
     84 	Return<void> initiateTdlsSetup(
     85 	    const hidl_array<uint8_t, 6>& mac_address,
     86 	    initiateTdlsSetup_cb _hidl_cb) override;
     87 	Return<void> initiateTdlsTeardown(
     88 	    const hidl_array<uint8_t, 6>& mac_address,
     89 	    initiateTdlsTeardown_cb _hidl_cb) override;
     90 	Return<void> initiateAnqpQuery(
     91 	    const hidl_array<uint8_t, 6>& mac_address,
     92 	    const hidl_vec<ISupplicantStaIface::AnqpInfoId>& info_elements,
     93 	    const hidl_vec<ISupplicantStaIface::Hs20AnqpSubtypes>& sub_types,
     94 	    initiateAnqpQuery_cb _hidl_cb) override;
     95 	Return<void> initiateHs20IconQuery(
     96 	    const hidl_array<uint8_t, 6>& mac_address,
     97 	    const hidl_string& file_name,
     98 	    initiateHs20IconQuery_cb _hidl_cb) override;
     99 	Return<void> getMacAddress(getMacAddress_cb _hidl_cb) override;
    100 	Return<void> startRxFilter(startRxFilter_cb _hidl_cb) override;
    101 	Return<void> stopRxFilter(stopRxFilter_cb _hidl_cb) override;
    102 	Return<void> addRxFilter(
    103 	    ISupplicantStaIface::RxFilterType type,
    104 	    addRxFilter_cb _hidl_cb) override;
    105 	Return<void> removeRxFilter(
    106 	    ISupplicantStaIface::RxFilterType type,
    107 	    removeRxFilter_cb _hidl_cb) override;
    108 	Return<void> setBtCoexistenceMode(
    109 	    ISupplicantStaIface::BtCoexistenceMode mode,
    110 	    setBtCoexistenceMode_cb _hidl_cb) override;
    111 	Return<void> setBtCoexistenceScanModeEnabled(
    112 	    bool enable, setBtCoexistenceScanModeEnabled_cb _hidl_cb) override;
    113 	Return<void> setSuspendModeEnabled(
    114 	    bool enable, setSuspendModeEnabled_cb _hidl_cb) override;
    115 	Return<void> setCountryCode(
    116 	    const hidl_array<int8_t, 2>& code,
    117 	    setCountryCode_cb _hidl_cb) override;
    118 	Return<void> startWpsRegistrar(
    119 	    const hidl_array<uint8_t, 6>& bssid, const hidl_string& pin,
    120 	    startWpsRegistrar_cb _hidl_cb) override;
    121 	Return<void> startWpsPbc(
    122 	    const hidl_array<uint8_t, 6>& bssid,
    123 	    startWpsPbc_cb _hidl_cb) override;
    124 	Return<void> startWpsPinKeypad(
    125 	    const hidl_string& pin, startWpsPinKeypad_cb _hidl_cb) override;
    126 	Return<void> startWpsPinDisplay(
    127 	    const hidl_array<uint8_t, 6>& bssid,
    128 	    startWpsPinDisplay_cb _hidl_cb) override;
    129 	Return<void> cancelWps(cancelWps_cb _hidl_cb) override;
    130 	Return<void> setWpsDeviceName(
    131 	    const hidl_string& name, setWpsDeviceName_cb _hidl_cb) override;
    132 	Return<void> setWpsDeviceType(
    133 	    const hidl_array<uint8_t, 8>& type,
    134 	    setWpsDeviceType_cb _hidl_cb) override;
    135 	Return<void> setWpsManufacturer(
    136 	    const hidl_string& manufacturer,
    137 	    setWpsManufacturer_cb _hidl_cb) override;
    138 	Return<void> setWpsModelName(
    139 	    const hidl_string& model_name,
    140 	    setWpsModelName_cb _hidl_cb) override;
    141 	Return<void> setWpsModelNumber(
    142 	    const hidl_string& model_number,
    143 	    setWpsModelNumber_cb _hidl_cb) override;
    144 	Return<void> setWpsSerialNumber(
    145 	    const hidl_string& serial_number,
    146 	    setWpsSerialNumber_cb _hidl_cb) override;
    147 	Return<void> setWpsConfigMethods(
    148 	    uint16_t config_methods, setWpsConfigMethods_cb _hidl_cb) override;
    149 	Return<void> setExternalSim(
    150 	    bool useExternalSim, setExternalSim_cb _hidl_cb) override;
    151 	Return<void> addExtRadioWork(
    152 	    const hidl_string& name, uint32_t freq_in_mhz,
    153 	    uint32_t timeout_in_sec, addExtRadioWork_cb _hidl_cb) override;
    154 	Return<void> removeExtRadioWork(
    155 	    uint32_t id, removeExtRadioWork_cb _hidl_cb) override;
    156 	Return<void> enableAutoReconnect(
    157 	    bool enable, enableAutoReconnect_cb _hidl_cb) override;
    158 
    159 private:
    160 	// Corresponding worker functions for the HIDL methods.
    161 	std::pair<SupplicantStatus, std::string> getNameInternal();
    162 	std::pair<SupplicantStatus, IfaceType> getTypeInternal();
    163 	std::pair<SupplicantStatus, sp<ISupplicantNetwork>>
    164 	addNetworkInternal();
    165 	SupplicantStatus removeNetworkInternal(SupplicantNetworkId id);
    166 	std::pair<SupplicantStatus, sp<ISupplicantNetwork>> getNetworkInternal(
    167 	    SupplicantNetworkId id);
    168 	std::pair<SupplicantStatus, std::vector<SupplicantNetworkId>>
    169 	listNetworksInternal();
    170 	SupplicantStatus registerCallbackInternal(
    171 	    const sp<ISupplicantStaIfaceCallback>& callback);
    172 	SupplicantStatus reassociateInternal();
    173 	SupplicantStatus reconnectInternal();
    174 	SupplicantStatus disconnectInternal();
    175 	SupplicantStatus setPowerSaveInternal(bool enable);
    176 	SupplicantStatus initiateTdlsDiscoverInternal(
    177 	    const std::array<uint8_t, 6>& mac_address);
    178 	SupplicantStatus initiateTdlsSetupInternal(
    179 	    const std::array<uint8_t, 6>& mac_address);
    180 	SupplicantStatus initiateTdlsTeardownInternal(
    181 	    const std::array<uint8_t, 6>& mac_address);
    182 	SupplicantStatus initiateAnqpQueryInternal(
    183 	    const std::array<uint8_t, 6>& mac_address,
    184 	    const std::vector<ISupplicantStaIface::AnqpInfoId>& info_elements,
    185 	    const std::vector<ISupplicantStaIface::Hs20AnqpSubtypes>&
    186 		sub_types);
    187 	SupplicantStatus initiateHs20IconQueryInternal(
    188 	    const std::array<uint8_t, 6>& mac_address,
    189 	    const std::string& file_name);
    190 	std::pair<SupplicantStatus, std::array<uint8_t, 6>>
    191 	getMacAddressInternal();
    192 	SupplicantStatus startRxFilterInternal();
    193 	SupplicantStatus stopRxFilterInternal();
    194 	SupplicantStatus addRxFilterInternal(
    195 	    ISupplicantStaIface::RxFilterType type);
    196 	SupplicantStatus removeRxFilterInternal(
    197 	    ISupplicantStaIface::RxFilterType type);
    198 	SupplicantStatus setBtCoexistenceModeInternal(
    199 	    ISupplicantStaIface::BtCoexistenceMode mode);
    200 	SupplicantStatus setBtCoexistenceScanModeEnabledInternal(bool enable);
    201 	SupplicantStatus setSuspendModeEnabledInternal(bool enable);
    202 	SupplicantStatus setCountryCodeInternal(
    203 	    const std::array<int8_t, 2>& code);
    204 	SupplicantStatus startWpsRegistrarInternal(
    205 	    const std::array<uint8_t, 6>& bssid, const std::string& pin);
    206 	SupplicantStatus startWpsPbcInternal(
    207 	    const std::array<uint8_t, 6>& bssid);
    208 	SupplicantStatus startWpsPinKeypadInternal(const std::string& pin);
    209 	std::pair<SupplicantStatus, std::string> startWpsPinDisplayInternal(
    210 	    const std::array<uint8_t, 6>& bssid);
    211 	SupplicantStatus cancelWpsInternal();
    212 	SupplicantStatus setWpsDeviceNameInternal(const std::string& name);
    213 	SupplicantStatus setWpsDeviceTypeInternal(
    214 	    const std::array<uint8_t, 8>& type);
    215 	SupplicantStatus setWpsManufacturerInternal(
    216 	    const std::string& manufacturer);
    217 	SupplicantStatus setWpsModelNameInternal(const std::string& model_name);
    218 	SupplicantStatus setWpsModelNumberInternal(
    219 	    const std::string& model_number);
    220 	SupplicantStatus setWpsSerialNumberInternal(
    221 	    const std::string& serial_number);
    222 	SupplicantStatus setWpsConfigMethodsInternal(uint16_t config_methods);
    223 	SupplicantStatus setExternalSimInternal(bool useExternalSim);
    224 	std::pair<SupplicantStatus, uint32_t> addExtRadioWorkInternal(
    225 	    const std::string& name, uint32_t freq_in_mhz,
    226 	    uint32_t timeout_in_sec);
    227 	SupplicantStatus removeExtRadioWorkInternal(uint32_t id);
    228 	SupplicantStatus enableAutoReconnectInternal(bool enable);
    229 
    230 	struct wpa_supplicant* retrieveIfacePtr();
    231 
    232 	// Reference to the global wpa_struct. This is assumed to be valid for
    233 	// the lifetime of the process.
    234 	struct wpa_global* wpa_global_;
    235 	// Name of the iface this hidl object controls
    236 	const std::string ifname_;
    237 	bool is_valid_;
    238 
    239 	DISALLOW_COPY_AND_ASSIGN(StaIface);
    240 };
    241 
    242 }  // namespace implementation
    243 }  // namespace V1_0
    244 }  // namespace wifi
    245 }  // namespace supplicant
    246 }  // namespace hardware
    247 }  // namespace android
    248 
    249 #endif  // WPA_SUPPLICANT_HIDL_STA_IFACE_H
    250