system76-edk2/NetworkPkg/TlsDxe/TlsConfigProtocol.c

/** @file
  Implementation of EFI TLS Configuration Protocol Interfaces.

  Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>

  This program and the accompanying materials
  are licensed and made available under the terms and conditions of the BSD License
  which accompanies this distribution.  The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php.

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#include "TlsImpl.h"

EFI_TLS_CONFIGURATION_PROTOCOL  mTlsConfigurationProtocol = {
  TlsConfigurationSetData,
  TlsConfigurationGetData
};

/**
  Set TLS configuration data.

  The SetData() function sets TLS configuration to non-volatile storage or volatile
  storage.

  @param[in]  This                Pointer to the EFI_TLS_CONFIGURATION_PROTOCOL instance.
  @param[in]  DataType            Configuration data type.
  @param[in]  Data                Pointer to configuration data.
  @param[in]  DataSize            Total size of configuration data.

  @retval EFI_SUCCESS             The TLS configuration data is set successfully.
  @retval EFI_INVALID_PARAMETER   One or more of the following conditions is TRUE:
                                  This is NULL.
                                  Data is NULL.
                                  DataSize is 0.
  @retval EFI_UNSUPPORTED         The DataType is unsupported.
  @retval EFI_OUT_OF_RESOURCES    Required system resources could not be allocated.

**/
EFI_STATUS
EFIAPI
TlsConfigurationSetData (
  IN     EFI_TLS_CONFIGURATION_PROTOCOL  *This,
  IN     EFI_TLS_CONFIG_DATA_TYPE        DataType,
  IN     VOID                            *Data,
  IN     UINTN                           DataSize
  )
{
  EFI_STATUS                Status;
  TLS_INSTANCE              *Instance;
  EFI_TPL                   OldTpl;

  Status = EFI_SUCCESS;

  if (This == NULL ||  Data == NULL || DataSize == 0) {
    return EFI_INVALID_PARAMETER;
  }

  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);

  Instance = TLS_INSTANCE_FROM_CONFIGURATION (This);

  switch (DataType) {
  case EfiTlsConfigDataTypeCACertificate:
    Status = TlsSetCaCertificate (Instance->TlsConn, Data, DataSize);
    break;
  case EfiTlsConfigDataTypeHostPublicCert:
    Status = TlsSetHostPublicCert (Instance->TlsConn, Data, DataSize);
    break;
  case EfiTlsConfigDataTypeHostPrivateKey:
    Status = TlsSetHostPrivateKey (Instance->TlsConn, Data, DataSize);
    break;
  case EfiTlsConfigDataTypeCertRevocationList:
    Status = TlsSetCertRevocationList (Data, DataSize);
    break;
  default:
     Status = EFI_UNSUPPORTED;
  }

  gBS->RestoreTPL (OldTpl);
  return Status;
}

/**
  Get TLS configuration data.

  The GetData() function gets TLS configuration.

  @param[in]       This           Pointer to the EFI_TLS_CONFIGURATION_PROTOCOL instance.
  @param[in]       DataType       Configuration data type.
  @param[in, out]  Data           Pointer to configuration data.
  @param[in, out]  DataSize       Total size of configuration data. On input, it means
                                  the size of Data buffer. On output, it means the size
                                  of copied Data buffer if EFI_SUCCESS, and means the
                                  size of desired Data buffer if EFI_BUFFER_TOO_SMALL.

  @retval EFI_SUCCESS             The TLS configuration data is got successfully.
  @retval EFI_INVALID_PARAMETER   One or more of the following conditions is TRUE:
                                  This is NULL.
                                  DataSize is NULL.
                                  Data is NULL if *DataSize is not zero.
  @retval EFI_UNSUPPORTED         The DataType is unsupported.
  @retval EFI_NOT_FOUND           The TLS configuration data is not found.
  @retval EFI_BUFFER_TOO_SMALL    The buffer is too small to hold the data.
**/
EFI_STATUS
EFIAPI
TlsConfigurationGetData (
  IN     EFI_TLS_CONFIGURATION_PROTOCOL  *This,
  IN     EFI_TLS_CONFIG_DATA_TYPE        DataType,
  IN OUT VOID                            *Data, OPTIONAL
  IN OUT UINTN                           *DataSize
  )
{
  EFI_STATUS                Status;
  TLS_INSTANCE              *Instance;

  EFI_TPL                   OldTpl;

  Status = EFI_SUCCESS;

  if (This == NULL || DataSize == NULL || (Data == NULL && *DataSize != 0)) {
    return EFI_INVALID_PARAMETER;
  }

  OldTpl = gBS->RaiseTPL (TPL_CALLBACK);

  Instance = TLS_INSTANCE_FROM_CONFIGURATION (This);

  switch (DataType) {
  case EfiTlsConfigDataTypeCACertificate:
    Status = TlsGetCaCertificate (Instance->TlsConn, Data, DataSize);
    break;
  case EfiTlsConfigDataTypeHostPublicCert:
    Status = TlsGetHostPublicCert (Instance->TlsConn, Data, DataSize);
    break;
  case EfiTlsConfigDataTypeHostPrivateKey:
    Status = TlsGetHostPrivateKey (Instance->TlsConn, Data, DataSize);
    break;
  case EfiTlsConfigDataTypeCertRevocationList:
    Status = TlsGetCertRevocationList (Data, DataSize);
    break;
  default:
    Status = EFI_UNSUPPORTED;
  }

  gBS->RestoreTPL (OldTpl);
  return Status;
}