SecurityPkg: Apply uncrustify changes

[mirror_edk2.git] / SecurityPkg / VariableAuthenticated / SecureBootConfigDxe / SecureBootConfigMisc.c

/** @file\r
  Helper functions for SecureBoot configuration module.\r
\r
Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "SecureBootConfigImpl.h"\r
\r
/**\r
  Read file content into BufferPtr, the size of the allocate buffer\r
  is *FileSize plus AdditionAllocateSize.\r
\r
  @param[in]       FileHandle            The file to be read.\r
  @param[in, out]  BufferPtr             Pointers to the pointer of allocated buffer.\r
  @param[out]      FileSize              Size of input file\r
  @param[in]       AdditionAllocateSize   Addition size the buffer need to be allocated.\r
                                         In case the buffer need to contain others besides the file content.\r
\r
  @retval   EFI_SUCCESS                  The file was read into the buffer.\r
  @retval   EFI_INVALID_PARAMETER        A parameter was invalid.\r
  @retval   EFI_OUT_OF_RESOURCES         A memory allocation failed.\r
  @retval   others                       Unexpected error.\r
\r
**/\r
EFI_STATUS\r
ReadFileContent (\r
  IN      EFI_FILE_HANDLE  FileHandle,\r
  IN OUT  VOID             **BufferPtr,\r
  OUT  UINTN               *FileSize,\r
  IN      UINTN            AdditionAllocateSize\r
  )\r
\r
{\r
  UINTN       BufferSize;\r
  UINT64      SourceFileSize;\r
  VOID        *Buffer;\r
  EFI_STATUS  Status;\r
\r
  if ((FileHandle == NULL) || (FileSize == NULL)) {\r
    return EFI_INVALID_PARAMETER;\r
  }\r
\r
  Buffer = NULL;\r
\r
  //\r
  // Get the file size\r
  //\r
  Status = FileHandle->SetPosition (FileHandle, (UINT64)-1);\r
  if (EFI_ERROR (Status)) {\r
    goto ON_EXIT;\r
  }\r
\r
  Status = FileHandle->GetPosition (FileHandle, &SourceFileSize);\r
  if (EFI_ERROR (Status)) {\r
    goto ON_EXIT;\r
  }\r
\r
  Status = FileHandle->SetPosition (FileHandle, 0);\r
  if (EFI_ERROR (Status)) {\r
    goto ON_EXIT;\r
  }\r
\r
  BufferSize = (UINTN)SourceFileSize + AdditionAllocateSize;\r
  Buffer     =  AllocateZeroPool (BufferSize);\r
  if (Buffer == NULL) {\r
    return EFI_OUT_OF_RESOURCES;\r
  }\r
\r
  BufferSize = (UINTN)SourceFileSize;\r
  *FileSize  = BufferSize;\r
\r
  Status = FileHandle->Read (FileHandle, &BufferSize, Buffer);\r
  if (EFI_ERROR (Status) || (BufferSize != *FileSize)) {\r
    FreePool (Buffer);\r
    Buffer = NULL;\r
    Status = EFI_BAD_BUFFER_SIZE;\r
    goto ON_EXIT;\r
  }\r
\r
ON_EXIT:\r
\r
  *BufferPtr = Buffer;\r
  return Status;\r
}\r
\r
/**\r
  Close an open file handle.\r
\r
  @param[in] FileHandle           The file handle to close.\r
\r
**/\r
VOID\r
CloseFile (\r
  IN EFI_FILE_HANDLE  FileHandle\r
  )\r
{\r
  if (FileHandle != NULL) {\r
    FileHandle->Close (FileHandle);\r
  }\r
}\r
\r
/**\r
  Convert a nonnegative integer to an octet string of a specified length.\r
\r
  @param[in]   Integer          Pointer to the nonnegative integer to be converted\r
  @param[in]   IntSizeInWords   Length of integer buffer in words\r
  @param[out]  OctetString      Converted octet string of the specified length\r
  @param[in]   OSSizeInBytes    Intended length of resulting octet string in bytes\r
\r
Returns:\r
\r
  @retval   EFI_SUCCESS            Data conversion successfully\r
  @retval   EFI_BUFFER_TOOL_SMALL  Buffer is too small for output string\r
\r
**/\r
EFI_STATUS\r
EFIAPI\r
Int2OctStr (\r
  IN     CONST UINTN  *Integer,\r
  IN     UINTN        IntSizeInWords,\r
  OUT UINT8           *OctetString,\r
  IN     UINTN        OSSizeInBytes\r
  )\r
{\r
  CONST UINT8  *Ptr1;\r
  UINT8        *Ptr2;\r
\r
  for (Ptr1 = (CONST UINT8 *)Integer, Ptr2 = OctetString + OSSizeInBytes - 1;\r
       Ptr1 < (UINT8 *)(Integer + IntSizeInWords) && Ptr2 >= OctetString;\r
       Ptr1++, Ptr2--)\r
  {\r
    *Ptr2 = *Ptr1;\r
  }\r
\r
  for ( ; Ptr1 < (CONST UINT8 *)(Integer + IntSizeInWords) && *Ptr1 == 0; Ptr1++) {\r
  }\r
\r
  if (Ptr1 < (CONST UINT8 *)(Integer + IntSizeInWords)) {\r
    return EFI_BUFFER_TOO_SMALL;\r
  }\r
\r
  if (Ptr2 >= OctetString) {\r
    ZeroMem (OctetString, Ptr2 - OctetString + 1);\r
  }\r
\r
  return EFI_SUCCESS;\r
}\r
\r
/**\r
  Worker function that prints an EFI_GUID into specified Buffer.\r
\r
  @param[in]     Guid          Pointer to GUID to print.\r
  @param[in]     Buffer        Buffer to print Guid into.\r
  @param[in]     BufferSize    Size of Buffer.\r
\r
  @retval    Number of characters printed.\r
\r
**/\r
UINTN\r
GuidToString (\r
  IN  EFI_GUID  *Guid,\r
  IN  CHAR16    *Buffer,\r
  IN  UINTN     BufferSize\r
  )\r
{\r
  UINTN  Size;\r
\r
  Size = UnicodeSPrint (\r
           Buffer,\r
           BufferSize,\r
           L"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",\r
           (UINTN)Guid->Data1,\r
           (UINTN)Guid->Data2,\r
           (UINTN)Guid->Data3,\r
           (UINTN)Guid->Data4[0],\r
           (UINTN)Guid->Data4[1],\r
           (UINTN)Guid->Data4[2],\r
           (UINTN)Guid->Data4[3],\r
           (UINTN)Guid->Data4[4],\r
           (UINTN)Guid->Data4[5],\r
           (UINTN)Guid->Data4[6],\r
           (UINTN)Guid->Data4[7]\r
           );\r
\r
  //\r
  // SPrint will null terminate the string. The -1 skips the null\r
  //\r
  return Size - 1;\r
}\r