michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /**
michael@0:  * Abstraction on top of the wifi support from libhardware_legacy that we
michael@0:  * use to talk to the wpa_supplicant.
michael@0:  */
michael@0: 
michael@0: #ifndef WifiUtils_h
michael@0: #define WifiUtils_h
michael@0: 
michael@0: #include "nsString.h"
michael@0: #include "nsAutoPtr.h"
michael@0: #include "mozilla/dom/WifiOptionsBinding.h"
michael@0: #include "mozilla/dom/network/NetUtils.h"
michael@0: #include "nsCxPusher.h"
michael@0: 
michael@0: // Needed to add a copy constructor to WifiCommandOptions.
michael@0: struct CommandOptions
michael@0: {
michael@0: public:
michael@0:   CommandOptions(const CommandOptions& aOther) {
michael@0:     mId = aOther.mId;
michael@0:     mCmd = aOther.mCmd;
michael@0:     mRequest = aOther.mRequest;
michael@0:     mIfname = aOther.mIfname;
michael@0:     mRoute = aOther.mRoute;
michael@0:     mIpaddr = aOther.mIpaddr;
michael@0:     mMask = aOther.mMask;
michael@0:     mGateway = aOther.mGateway;
michael@0:     mDns1 = aOther.mDns1;
michael@0:     mDns2 = aOther.mDns2;
michael@0:     mKey = aOther.mKey;
michael@0:     mValue = aOther.mValue;
michael@0:     mDefaultValue = aOther.mDefaultValue;
michael@0:   }
michael@0: 
michael@0:   CommandOptions(const mozilla::dom::WifiCommandOptions& aOther) {
michael@0: 
michael@0: #define COPY_OPT_FIELD(prop, defaultValue)            \
michael@0:     if (aOther.prop.WasPassed()) {                    \
michael@0:       prop = aOther.prop.Value();                     \
michael@0:     } else {                                          \
michael@0:       prop = defaultValue;                            \
michael@0:     }
michael@0: 
michael@0: #define COPY_FIELD(prop) prop = aOther.prop;
michael@0:     COPY_FIELD(mId)
michael@0:     COPY_FIELD(mCmd)
michael@0:     COPY_OPT_FIELD(mRequest, EmptyString())
michael@0:     COPY_OPT_FIELD(mIfname, EmptyString())
michael@0:     COPY_OPT_FIELD(mIpaddr, 0)
michael@0:     COPY_OPT_FIELD(mRoute, 0)
michael@0:     COPY_OPT_FIELD(mMask, 0)
michael@0:     COPY_OPT_FIELD(mGateway, 0)
michael@0:     COPY_OPT_FIELD(mDns1, 0)
michael@0:     COPY_OPT_FIELD(mDns2, 0)
michael@0:     COPY_OPT_FIELD(mKey, EmptyString())
michael@0:     COPY_OPT_FIELD(mValue, EmptyString())
michael@0:     COPY_OPT_FIELD(mDefaultValue, EmptyString())
michael@0: 
michael@0: #undef COPY_OPT_FIELD
michael@0: #undef COPY_FIELD
michael@0:   }
michael@0: 
michael@0:   // All the fields, not Optional<> anymore to get copy constructors.
michael@0:   nsString mCmd;
michael@0:   nsString mDefaultValue;
michael@0:   int32_t mDns1;
michael@0:   int32_t mDns2;
michael@0:   int32_t mGateway;
michael@0:   int32_t mId;
michael@0:   nsString mIfname;
michael@0:   int32_t mIpaddr;
michael@0:   nsString mKey;
michael@0:   int32_t mMask;
michael@0:   nsString mRequest;
michael@0:   int32_t mRoute;
michael@0:   nsString mValue;
michael@0: };
michael@0: 
michael@0: // Abstract class that exposes libhardware_legacy functions we need for
michael@0: // wifi management.
michael@0: // We use the ICS signatures here since they are likely more future-proof.
michael@0: class WpaSupplicantImpl
michael@0: {
michael@0: public:
michael@0:   // Suppress warning from nsAutoPtr
michael@0:   virtual ~WpaSupplicantImpl() {}
michael@0: 
michael@0:   virtual int32_t
michael@0:   do_wifi_wait_for_event(const char *iface, char *buf, size_t len) = 0; // KK == ICS != JB
michael@0: 
michael@0:   virtual int32_t
michael@0:   do_wifi_command(const char* iface, const char* cmd, char* buff, size_t* len) = 0; // KK == ICS != JB
michael@0: 
michael@0:   virtual int32_t
michael@0:   do_wifi_load_driver() = 0;
michael@0: 
michael@0:   virtual int32_t
michael@0:   do_wifi_unload_driver() = 0;
michael@0: 
michael@0:   virtual int32_t
michael@0:   do_wifi_start_supplicant(int32_t) = 0; // ICS != JB == KK
michael@0: 
michael@0:   virtual int32_t
michael@0:   do_wifi_stop_supplicant(int32_t) = 0; //ICS != JB == KK
michael@0: 
michael@0:   virtual int32_t
michael@0:   do_wifi_connect_to_supplicant(const char* iface) = 0; // KK == ICS != JB
michael@0: 
michael@0:   virtual void
michael@0:   do_wifi_close_supplicant_connection(const char* iface) = 0; // KK == ICS != JB
michael@0: };
michael@0: 
michael@0: // Concrete class to use to access the wpa supplicant.
michael@0: class WpaSupplicant MOZ_FINAL
michael@0: {
michael@0: public:
michael@0:   WpaSupplicant();
michael@0: 
michael@0:   // Use nsCString as the type of aInterface to guarantee it's
michael@0:   // null-terminated so that we can pass it to c API without
michael@0:   // conversion
michael@0:   void WaitForEvent(nsAString& aEvent, const nsCString& aInterface);
michael@0:   bool ExecuteCommand(CommandOptions aOptions,
michael@0:                       mozilla::dom::WifiResultOptions& result,
michael@0:                       const nsCString& aInterface);
michael@0: 
michael@0: private:
michael@0:   nsAutoPtr<WpaSupplicantImpl> mImpl;
michael@0:   nsAutoPtr<NetUtils> mNetUtils;
michael@0: 
michael@0: protected:
michael@0:   void CheckBuffer(char* buffer, int32_t length, nsAString& aEvent);
michael@0:   uint32_t MakeMask(uint32_t len);
michael@0: };
michael@0: 
michael@0: #endif // WifiUtils_h