NetworkPkg/TlsAuthConfigDxe/TlsAuthConfigDxe.c

   1 /** @file
   2   The DriverEntryPoint for TlsAuthConfigDxe driver.
   3
   4   Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>
   5
   6   SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #include "TlsAuthConfigImpl.h"
  11
  12 /**
  13   Unloads an image.
  14
  15   @param  ImageHandle           Handle that identifies the image to be unloaded.
  16
  17   @retval EFI_SUCCESS           The image has been unloaded.
  18   @retval EFI_INVALID_PARAMETER ImageHandle is not a valid image handle.
  19
  20 **/
  21 EFI_STATUS
  22 EFIAPI
  23 TlsAuthConfigDxeUnload (
  24   IN EFI_HANDLE  ImageHandle
  25   )
  26 {
  27   EFI_STATUS                     Status;
  28   TLS_AUTH_CONFIG_PRIVATE_DATA   *PrivateData;
  29
  30   Status = gBS->HandleProtocol (
  31                   ImageHandle,
  32                   &gEfiCallerIdGuid,
  33                   (VOID **) &PrivateData
  34                   );
  35   if (EFI_ERROR (Status)) {
  36     return Status;
  37   }
  38
  39   ASSERT (PrivateData->Signature == TLS_AUTH_CONFIG_PRIVATE_DATA_SIGNATURE);
  40
  41   gBS->UninstallMultipleProtocolInterfaces (
  42          &ImageHandle,
  43          &gEfiCallerIdGuid,
  44          PrivateData,
  45          NULL
  46          );
  47
  48   TlsAuthConfigFormUnload (PrivateData);
  49
  50   return EFI_SUCCESS;
  51 }
  52
  53 /**
  54   This is the declaration of an EFI image entry point. This entry point is
  55   the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including
  56   both device drivers and bus drivers.
  57
  58   @param  ImageHandle           The firmware allocated handle for the UEFI image.
  59   @param  SystemTable           A pointer to the EFI System Table.
  60
  61   @retval EFI_SUCCESS           The operation completed successfully.
  62   @retval Others                An unexpected error occurred.
  63 **/
  64 EFI_STATUS
  65 EFIAPI
  66 TlsAuthConfigDxeDriverEntryPoint (
  67   IN EFI_HANDLE        ImageHandle,
  68   IN EFI_SYSTEM_TABLE  *SystemTable
  69   )
  70 {
  71   EFI_STATUS  Status;
  72
  73   TLS_AUTH_CONFIG_PRIVATE_DATA   *PrivateData;
  74
  75   PrivateData = NULL;
  76
  77   //
  78   // If already started, return.
  79   //
  80   Status = gBS->OpenProtocol (
  81                   ImageHandle,
  82                   &gEfiCallerIdGuid,
  83                   NULL,
  84                   ImageHandle,
  85                   ImageHandle,
  86                   EFI_OPEN_PROTOCOL_TEST_PROTOCOL
  87                   );
  88   if (!EFI_ERROR (Status)) {
  89     return EFI_ALREADY_STARTED;
  90   }
  91
  92   //
  93   // Initialize the private data structure.
  94   //
  95   PrivateData = AllocateZeroPool (sizeof (TLS_AUTH_CONFIG_PRIVATE_DATA));
  96   if (PrivateData == NULL) {
  97     return EFI_OUT_OF_RESOURCES;
  98   }
  99
 100   //
 101   // Initialize the HII configuration form.
 102   //
 103   Status = TlsAuthConfigFormInit (PrivateData);
 104   if (EFI_ERROR (Status)) {
 105     goto ON_ERROR;
 106   }
 107
 108   //
 109   // Install private GUID.
 110   //
 111   Status = gBS->InstallMultipleProtocolInterfaces (
 112                   &ImageHandle,
 113                   &gEfiCallerIdGuid,
 114                   PrivateData,
 115                   NULL
 116                   );
 117   if (EFI_ERROR (Status)) {
 118     goto ON_ERROR;
 119   }
 120
 121   return EFI_SUCCESS;
 122
 123 ON_ERROR:
 124   TlsAuthConfigFormUnload (PrivateData);
 125
 126   return Status;
 127 }
 128