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617 lines
21 KiB
C
617 lines
21 KiB
C
/** @file
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The driver binding protocol for the WiFi Connection Manager.
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Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "WifiConnectionMgrDxe.h"
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///
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/// Driver Binding Protocol instance
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///
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EFI_DRIVER_BINDING_PROTOCOL gWifiMgrDxeDriverBinding = {
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WifiMgrDxeDriverBindingSupported,
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WifiMgrDxeDriverBindingStart,
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WifiMgrDxeDriverBindingStop,
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WIFI_MGR_DXE_VERSION,
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NULL,
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NULL
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};
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//
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//The private global data for WiFi Connection Manager
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//
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WIFI_MGR_PRIVATE_DATA *mPrivate = NULL;
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//
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//The private guid to identify WiFi Connection Manager
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//
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EFI_GUID mEfiWifiMgrPrivateGuid = EFI_WIFIMGR_PRIVATE_GUID;
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//
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//The Hii config guids
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//
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EFI_GUID gWifiConfigFormSetGuid = WIFI_CONNECTION_MANAGER_CONFIG_GUID;
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EFI_GUID mWifiConfigNetworkListRefreshGuid = WIFI_CONFIG_NETWORK_LIST_REFRESH_GUID;
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EFI_GUID mWifiConfigConnectFormRefreshGuid = WIFI_CONFIG_CONNECT_FORM_REFRESH_GUID;
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EFI_GUID mWifiConfigMainFormRefreshGuid = WIFI_CONFIG_MAIN_FORM_REFRESH_GUID;
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/**
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Tests to see if this driver supports a given controller. If a child device is provided,
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it further tests to see if this driver supports creating a handle for the specified child device.
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This function checks to see if the driver specified by This supports the device specified by
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ControllerHandle. Drivers will typically use the device path attached to
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ControllerHandle and/or the services from the bus I/O abstraction attached to
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ControllerHandle to determine if the driver supports ControllerHandle. This function
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may be called many times during platform initialization. In order to reduce boot times, the tests
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performed by this function must be very small, and take as little time as possible to execute. This
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function must not change the state of any hardware devices, and this function must be aware that the
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device specified by ControllerHandle may already be managed by the same driver or a
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different driver. This function must match its calls to AllocatePages() with FreePages(),
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AllocatePool() with FreePool(), and OpenProtocol() with CloseProtocol().
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Because ControllerHandle may have been previously started by the same driver, if a protocol is
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already in the opened state, then it must not be closed with CloseProtocol(). This is required
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to guarantee the state of ControllerHandle is not modified by this function.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle The handle of the controller to test. This handle
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must support a protocol interface that supplies
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an I/O abstraction to the driver.
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@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
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parameter is ignored by device drivers, and is optional for bus
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drivers. For bus drivers, if this parameter is not NULL, then
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the bus driver must determine if the bus controller specified
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by ControllerHandle and the child controller specified
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by RemainingDevicePath are both supported by this
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bus driver.
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@retval EFI_SUCCESS The device specified by ControllerHandle and
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RemainingDevicePath is supported by the driver specified by This.
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@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
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RemainingDevicePath is already being managed by the driver
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specified by This.
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@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
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RemainingDevicePath is already being managed by a different
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driver or an application that requires exclusive access.
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Currently not implemented.
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@retval EFI_UNSUPPORTED The device specified by ControllerHandle and
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RemainingDevicePath is not supported by the driver specified by This.
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**/
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EFI_STATUS
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EFIAPI
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WifiMgrDxeDriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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)
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{
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EFI_STATUS Status;
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Status = gBS->OpenProtocol (
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ControllerHandle,
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&mEfiWifiMgrPrivateGuid,
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NULL,
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This->DriverBindingHandle,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
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if (!EFI_ERROR (Status)) {
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return EFI_ALREADY_STARTED;
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}
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//
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// Test for the wireless MAC connection 2 protocol
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//
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return gBS->OpenProtocol (
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ControllerHandle,
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&gEfiWiFi2ProtocolGuid,
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NULL,
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This->DriverBindingHandle,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_TEST_PROTOCOL
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);
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}
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/**
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Starts a device controller or a bus controller.
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The Start() function is designed to be invoked from the EFI boot service ConnectController().
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As a result, much of the error checking on the parameters to Start() has been moved into this
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common boot service. It is legal to call Start() from other locations,
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but the following calling restrictions must be followed, or the system behavior will not be deterministic.
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1. ControllerHandle must be a valid EFI_HANDLE.
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2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
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EFI_DEVICE_PATH_PROTOCOL.
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3. Prior to calling Start(), the Supported() function for the driver specified by This must
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have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle The handle of the controller to start. This handle
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must support a protocol interface that supplies
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an I/O abstraction to the driver.
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@param[in] RemainingDevicePath A pointer to the remaining portion of a device path. This
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parameter is ignored by device drivers, and is optional for bus
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drivers. For a bus driver, if this parameter is NULL, then handles
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for all the children of Controller are created by this driver.
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If this parameter is not NULL and the first Device Path Node is
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not the End of Device Path Node, then only the handle for the
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child device specified by the first Device Path Node of
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RemainingDevicePath is created by this driver.
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If the first Device Path Node of RemainingDevicePath is
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the End of Device Path Node, no child handle is created by this
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driver.
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@retval EFI_SUCCESS The device was started.
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@retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.
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@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
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@retval Others The driver failded to start the device.
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**/
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EFI_STATUS
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EFIAPI
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WifiMgrDxeDriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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)
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{
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EFI_STATUS Status;
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EFI_TPL OldTpl;
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UINTN AddressSize;
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WIFI_MGR_DEVICE_DATA *Nic;
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EFI_WIRELESS_MAC_CONNECTION_II_PROTOCOL *Wmp;
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EFI_SUPPLICANT_PROTOCOL *Supplicant;
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EFI_EAP_CONFIGURATION_PROTOCOL *EapConfig;
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Nic = NULL;
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//
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//Open Protocols
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//
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Status = gBS->OpenProtocol (
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ControllerHandle,
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&gEfiWiFi2ProtocolGuid,
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(VOID**) &Wmp,
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This->DriverBindingHandle,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_BY_DRIVER
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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Status = gBS->OpenProtocol (
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ControllerHandle,
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&gEfiSupplicantProtocolGuid,
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(VOID**) &Supplicant,
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This->DriverBindingHandle,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_BY_DRIVER
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);
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if (EFI_ERROR (Status)) {
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Supplicant = NULL;
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}
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Status = gBS->OpenProtocol (
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ControllerHandle,
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&gEfiEapConfigurationProtocolGuid,
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(VOID**) &EapConfig,
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This->DriverBindingHandle,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_BY_DRIVER
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);
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if (EFI_ERROR (Status)) {
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EapConfig = NULL;
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}
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//
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//Initialize Nic device data
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//
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Nic = AllocateZeroPool (sizeof (WIFI_MGR_DEVICE_DATA));
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if (Nic == NULL) {
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Status = EFI_OUT_OF_RESOURCES;
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goto ERROR1;
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}
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Nic->Signature = WIFI_MGR_DEVICE_DATA_SIGNATURE;
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Nic->DriverHandle = This->DriverBindingHandle;
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Nic->ControllerHandle = ControllerHandle;
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Nic->Private = mPrivate;
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Nic->Wmp = Wmp;
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Nic->Supplicant = Supplicant;
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Nic->EapConfig = EapConfig;
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Nic->UserSelectedProfile = NULL;
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Nic->OneTimeScanRequest = FALSE;
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Nic->ScanTickTime = WIFI_SCAN_FREQUENCY; //Initialize the first scan
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if (Nic->Supplicant != NULL) {
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WifiMgrGetSupportedSuites(Nic);
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}
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InitializeListHead (&Nic->ProfileList);
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//
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// Record the MAC address of the incoming NIC.
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//
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Status = NetLibGetMacAddress (
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ControllerHandle,
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(EFI_MAC_ADDRESS*) &Nic->MacAddress,
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&AddressSize
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);
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if (EFI_ERROR (Status)) {
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goto ERROR2;
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}
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//
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// Create and start the timer for the status check
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//
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Status = gBS->CreateEvent (
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EVT_NOTIFY_SIGNAL | EVT_TIMER,
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TPL_CALLBACK,
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WifiMgrOnTimerTick,
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Nic,
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&Nic->TickTimer
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);
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if (EFI_ERROR (Status)) {
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goto ERROR2;
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}
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Status = gBS->SetTimer (Nic->TickTimer, TimerPeriodic, EFI_TIMER_PERIOD_MILLISECONDS(500));
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if (EFI_ERROR (Status)) {
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goto ERROR3;
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}
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Nic->ConnectState = WifiMgrDisconnected;
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Nic->ScanState = WifiMgrScanFinished;
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OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
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InsertTailList (&mPrivate->NicList, &Nic->Link);
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Nic->NicIndex = mPrivate->NicCount ++;
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if (mPrivate->CurrentNic == NULL) {
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mPrivate->CurrentNic = Nic;
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}
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gBS->RestoreTPL (OldTpl);
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Status = gBS->InstallProtocolInterface (
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&ControllerHandle,
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&mEfiWifiMgrPrivateGuid,
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EFI_NATIVE_INTERFACE,
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&Nic->WifiMgrIdentifier
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);
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if (EFI_ERROR (Status)) {
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goto ERROR4;
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}
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return EFI_SUCCESS;
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ERROR4:
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gBS->SetTimer (Nic->TickTimer, TimerCancel, 0);
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OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
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RemoveEntryList (&Nic->Link);
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mPrivate->NicCount--;
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gBS->RestoreTPL (OldTpl);
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ERROR3:
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gBS->CloseEvent (Nic->TickTimer);
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ERROR2:
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if (Nic->Supplicant != NULL) {
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if (Nic->SupportedSuites.SupportedAKMSuites != NULL) {
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FreePool (Nic->SupportedSuites.SupportedAKMSuites);
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}
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if (Nic->SupportedSuites.SupportedSwCipherSuites != NULL) {
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FreePool (Nic->SupportedSuites.SupportedSwCipherSuites);
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}
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if (Nic->SupportedSuites.SupportedHwCipherSuites != NULL) {
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FreePool (Nic->SupportedSuites.SupportedHwCipherSuites);
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}
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}
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FreePool (Nic);
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ERROR1:
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if (Supplicant != NULL) {
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gBS->CloseProtocol (
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ControllerHandle,
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&gEfiSupplicantProtocolGuid,
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This->DriverBindingHandle,
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ControllerHandle
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);
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}
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if (EapConfig != NULL) {
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gBS->CloseProtocol (
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ControllerHandle,
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&gEfiEapConfigurationProtocolGuid,
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This->DriverBindingHandle,
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ControllerHandle
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);
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}
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gBS->CloseProtocol (
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ControllerHandle,
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&gEfiWiFi2ProtocolGuid,
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This->DriverBindingHandle,
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ControllerHandle
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);
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return Status;
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}
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/**
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Stops a device controller or a bus controller.
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The Stop() function is designed to be invoked from the EFI boot service DisconnectController().
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As a result, much of the error checking on the parameters to Stop() has been moved
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into this common boot service. It is legal to call Stop() from other locations,
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but the following calling restrictions must be followed, or the system behavior will not be deterministic.
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1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
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same driver's Start() function.
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2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
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EFI_HANDLE. In addition, all of these handles must have been created in this driver's
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Start() function, and the Start() function must have called OpenProtocol() on
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ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle A handle to the device being stopped. The handle must
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support a bus specific I/O protocol for the driver
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to use to stop the device.
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@param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
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@param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
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if NumberOfChildren is 0.
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@retval EFI_SUCCESS The device was stopped.
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@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
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**/
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EFI_STATUS
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EFIAPI
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WifiMgrDxeDriverBindingStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer OPTIONAL
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)
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{
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EFI_STATUS Status;
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EFI_TPL OldTpl;
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WIFI_MGR_PRIVATE_PROTOCOL *WifiMgrIdentifier;
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WIFI_MGR_DEVICE_DATA *Nic;
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Status = gBS->OpenProtocol (
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ControllerHandle,
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&mEfiWifiMgrPrivateGuid,
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(VOID **) &WifiMgrIdentifier,
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This->DriverBindingHandle,
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ControllerHandle,
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EFI_OPEN_PROTOCOL_GET_PROTOCOL
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);
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if (EFI_ERROR (Status)) {
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return EFI_DEVICE_ERROR;
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}
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Nic = WIFI_MGR_DEVICE_DATA_FROM_IDENTIFIER (WifiMgrIdentifier);
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if (Nic == NULL) {
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return EFI_DEVICE_ERROR;
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}
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//
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// Close Event
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//
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gBS->SetTimer (Nic->TickTimer, TimerCancel, 0);
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gBS->CloseEvent (Nic->TickTimer);
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//
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// Clean Supported Suites
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//
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if (Nic->Supplicant != NULL) {
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if (Nic->SupportedSuites.SupportedAKMSuites != NULL) {
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FreePool (Nic->SupportedSuites.SupportedAKMSuites);
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}
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if (Nic->SupportedSuites.SupportedSwCipherSuites != NULL) {
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FreePool (Nic->SupportedSuites.SupportedSwCipherSuites);
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}
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if (Nic->SupportedSuites.SupportedHwCipherSuites != NULL) {
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FreePool (Nic->SupportedSuites.SupportedHwCipherSuites);
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}
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}
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//
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// Close Protocols
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//
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Status = gBS->UninstallProtocolInterface (
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ControllerHandle,
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&mEfiWifiMgrPrivateGuid,
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&Nic->WifiMgrIdentifier
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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Status = gBS->CloseProtocol (
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ControllerHandle,
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&gEfiWiFi2ProtocolGuid,
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Nic->DriverHandle,
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Nic->ControllerHandle
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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if (Nic->Supplicant != NULL) {
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Status = gBS->CloseProtocol (
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ControllerHandle,
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&gEfiSupplicantProtocolGuid,
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Nic->DriverHandle,
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Nic->ControllerHandle
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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}
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if (Nic->EapConfig != NULL) {
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Status = gBS->CloseProtocol (
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ControllerHandle,
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&gEfiEapConfigurationProtocolGuid,
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Nic->DriverHandle,
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Nic->ControllerHandle
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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}
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//
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// Remove this Nic from Nic list
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//
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OldTpl = gBS->RaiseTPL (TPL_CALLBACK);
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RemoveEntryList (&Nic->Link);
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mPrivate->NicCount--;
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if (mPrivate->CurrentNic == Nic) {
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mPrivate->CurrentNic = NULL;
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}
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gBS->RestoreTPL (OldTpl);
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WifiMgrFreeProfileList (&Nic->ProfileList);
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FreePool (Nic);
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DEBUG ((DEBUG_INFO, "[WiFi Connection Manager] Device Controller has been Disconnected!\n"));
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return EFI_SUCCESS;
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}
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/**
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This is the declaration of an EFI image entry point. This entry point is
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the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including
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both device drivers and bus drivers.
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@param ImageHandle The firmware allocated handle for the UEFI image.
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@param SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The operation completed successfully.
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@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
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@retval Others An unexpected error occurred.
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**/
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EFI_STATUS
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EFIAPI
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WifiMgrDxeDriverEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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Status = EfiLibInstallDriverBindingComponentName2 (
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ImageHandle,
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SystemTable,
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&gWifiMgrDxeDriverBinding,
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ImageHandle,
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&gWifiMgrDxeComponentName,
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&gWifiMgrDxeComponentName2
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
|
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|
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//
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|
// Initialize the global private data structure.
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//
|
|
mPrivate = AllocateZeroPool (sizeof (WIFI_MGR_PRIVATE_DATA));
|
|
if (mPrivate == NULL) {
|
|
Status = EFI_OUT_OF_RESOURCES;
|
|
goto ERROR1;
|
|
}
|
|
mPrivate->Signature = WIFI_MGR_PRIVATE_DATA_SIGNATURE;
|
|
mPrivate->DriverHandle = ImageHandle;
|
|
InitializeListHead (&mPrivate->NicList);
|
|
mPrivate->NicCount = 0;
|
|
mPrivate->CurrentNic = NULL;
|
|
InitializeListHead (&mPrivate->HiddenNetworkList);
|
|
mPrivate->HiddenNetworkCount = 0;
|
|
|
|
//
|
|
//Create events for page refresh
|
|
//
|
|
Status = gBS->CreateEventEx (
|
|
EVT_NOTIFY_SIGNAL,
|
|
TPL_CALLBACK,
|
|
WifiMgrInternalEmptyFunction,
|
|
NULL,
|
|
&mWifiConfigNetworkListRefreshGuid,
|
|
&mPrivate->NetworkListRefreshEvent
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ERROR2;
|
|
}
|
|
|
|
Status = gBS->CreateEventEx (
|
|
EVT_NOTIFY_SIGNAL,
|
|
TPL_CALLBACK,
|
|
WifiMgrInternalEmptyFunction,
|
|
NULL,
|
|
&mWifiConfigConnectFormRefreshGuid,
|
|
&mPrivate->ConnectFormRefreshEvent
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ERROR3;
|
|
}
|
|
|
|
Status = gBS->CreateEventEx (
|
|
EVT_NOTIFY_SIGNAL,
|
|
TPL_CALLBACK,
|
|
WifiMgrInternalEmptyFunction,
|
|
NULL,
|
|
&mWifiConfigMainFormRefreshGuid,
|
|
&mPrivate->MainPageRefreshEvent
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ERROR4;
|
|
}
|
|
|
|
Status = WifiMgrDxeConfigFormInit (mPrivate);
|
|
if (EFI_ERROR (Status)) {
|
|
goto ERROR5;
|
|
}
|
|
|
|
return Status;
|
|
|
|
ERROR5:
|
|
gBS->CloseEvent (mPrivate->MainPageRefreshEvent);
|
|
|
|
ERROR4:
|
|
gBS->CloseEvent (mPrivate->ConnectFormRefreshEvent);
|
|
|
|
ERROR3:
|
|
gBS->CloseEvent (mPrivate->NetworkListRefreshEvent);
|
|
|
|
ERROR2:
|
|
if (mPrivate != NULL) {
|
|
FreePool (mPrivate);
|
|
mPrivate = NULL;
|
|
}
|
|
|
|
ERROR1:
|
|
gBS->UninstallMultipleProtocolInterfaces (
|
|
ImageHandle,
|
|
&gEfiDriverBindingProtocolGuid,
|
|
&gWifiMgrDxeDriverBinding,
|
|
&gEfiComponentNameProtocolGuid,
|
|
&gWifiMgrDxeComponentName,
|
|
&gEfiComponentName2ProtocolGuid,
|
|
&gWifiMgrDxeComponentName2,
|
|
NULL
|
|
);
|
|
|
|
return Status;
|
|
}
|