system76-edk2/NetworkPkg/TlsDxe/TlsConfigProtocol.c

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

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

  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#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;
}