[edk2] [PATCH 08/11] SecurityPkg/SecureBootConfigDxe: Use StrToGuid in BaseLib

Ruiyu Ni posted 11 patches 7 years, 8 months ago
There is a newer version of this series
[edk2] [PATCH 08/11] SecurityPkg/SecureBootConfigDxe: Use StrToGuid in BaseLib
Posted by Ruiyu Ni 7 years, 8 months ago
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
---
 .../SecureBootConfigDxe/SecureBootConfigImpl.c     |  11 +-
 .../SecureBootConfigDxe/SecureBootConfigImpl.h     |  22 +---
 .../SecureBootConfigDxe/SecureBootConfigMisc.c     | 141 +--------------------
 3 files changed, 6 insertions(+), 168 deletions(-)

diff --git a/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigImpl.c b/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigImpl.c
index 0d96185..9b7d0c1 100644
--- a/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigImpl.c
+++ b/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigImpl.c
@@ -1,7 +1,7 @@
 /** @file
   HII Config Access protocol implementation of SecureBoot configuration module.
 
-Copyright (c) 2011 - 2016, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2011 - 2017, 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
@@ -3636,12 +3636,9 @@ SecureBootCallback (
     case KEY_SECURE_BOOT_SIGNATURE_GUID_DBX:
     case KEY_SECURE_BOOT_SIGNATURE_GUID_DBT:
       ASSERT (Private->SignatureGUID != NULL);
-      Status = StringToGuid (
-                 IfrNvData->SignatureGuid,
-                 StrLen (IfrNvData->SignatureGuid),
-                 Private->SignatureGUID
-                 );
-      if (EFI_ERROR (Status)) {
+      if (RETURN_ERROR (StrToGuid (IfrNvData->SignatureGuid, Private->SignatureGUID)) ||
+          (IfrNvData->SignatureGuid[GUID_STRING_LENGTH] != L'\0')) {
+        Status = EFI_INVALID_PARAMETER;
         break;
       }
 
diff --git a/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigImpl.h b/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigImpl.h
index 5055a9e..aa58c44 100644
--- a/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigImpl.h
+++ b/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigImpl.h
@@ -2,7 +2,7 @@
   The header file of HII Config Access protocol implementation of SecureBoot
   configuration module.
 
-Copyright (c) 2011 - 2016, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2011 - 2017, 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
@@ -479,26 +479,6 @@ Int2OctStr (
   IN     UINTN             OSSizeInBytes
   );
 
-
-/**
-  Convert a String to Guid Value.
-
-  @param[in]   Str        Specifies the String to be converted.
-  @param[in]   StrLen     Number of Unicode Characters of String (exclusive \0)
-  @param[out]  Guid       Return the result Guid value.
-
-  @retval    EFI_SUCCESS           The operation is finished successfully.
-  @retval    EFI_NOT_FOUND         Invalid string.
-
-**/
-EFI_STATUS
-StringToGuid (
-  IN   CHAR16           *Str,
-  IN   UINTN            StrLen,
-  OUT  EFI_GUID         *Guid
-  );
-
-
 /**
   Worker function that prints an EFI_GUID into specified Buffer.
 
diff --git a/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigMisc.c b/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigMisc.c
index a83504e..038707c 100644
--- a/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigMisc.c
+++ b/SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigMisc.c
@@ -1,7 +1,7 @@
 /** @file
   Helper functions for SecureBoot configuration module.
 
-Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2015 - 2017, 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
@@ -152,145 +152,6 @@ Int2OctStr (
   return EFI_SUCCESS;
 }
 
-
-
-/**
-  Convert a String to Guid Value.
-
-  @param[in]   Str        Specifies the String to be converted.
-  @param[in]   StrLen     Number of Unicode Characters of String (exclusive \0)
-  @param[out]  Guid       Return the result Guid value.
-
-  @retval    EFI_SUCCESS           The operation is finished successfully.
-  @retval    EFI_NOT_FOUND         Invalid string.
-
-**/
-EFI_STATUS
-StringToGuid (
-  IN   CHAR16           *Str, 
-  IN   UINTN            StrLen, 
-  OUT  EFI_GUID         *Guid
-  )
-{
-  CHAR16             *PtrBuffer;
-  CHAR16             *PtrPosition;
-  UINT16             *Buffer;
-  UINTN              Data;
-  UINTN              Index;
-  UINT16             Digits[3];
-
-  Buffer = (CHAR16 *) AllocateZeroPool (sizeof (CHAR16) * (StrLen + 1));
-  if (Buffer == NULL) {
-    return EFI_OUT_OF_RESOURCES;
-  }
-
-  StrCpyS (Buffer, (StrLen + 1), Str);
-
-  //
-  // Data1
-  //
-  PtrBuffer       = Buffer;
-  PtrPosition     = PtrBuffer; 
-  while (*PtrBuffer != L'\0') {
-    if (*PtrBuffer == L'-') {
-      break;
-    }
-    PtrBuffer++;
-  }
-  if (*PtrBuffer == L'\0') {
-    FreePool (Buffer);
-    return EFI_NOT_FOUND;
-  }
-
-  *PtrBuffer      = L'\0';
-  Data            = StrHexToUintn (PtrPosition);
-  Guid->Data1     = (UINT32)Data;
-
-  //
-  // Data2
-  //
-  PtrBuffer++;
-  PtrPosition     = PtrBuffer;
-  while (*PtrBuffer != L'\0') {
-    if (*PtrBuffer == L'-') {
-      break;
-    }
-    PtrBuffer++;
-  }
-  if (*PtrBuffer == L'\0') {
-    FreePool (Buffer);
-    return EFI_NOT_FOUND;
-  }
-  *PtrBuffer      = L'\0';
-  Data            = StrHexToUintn (PtrPosition);
-  Guid->Data2     = (UINT16)Data;
-
-  //
-  // Data3
-  //
-  PtrBuffer++;
-  PtrPosition     = PtrBuffer;
-  while (*PtrBuffer != L'\0') {
-    if (*PtrBuffer == L'-') {
-      break;
-    }
-    PtrBuffer++;
-  }
-  if (*PtrBuffer == L'\0') {
-    FreePool (Buffer);
-    return EFI_NOT_FOUND;
-  }
-  *PtrBuffer      = L'\0';
-  Data            = StrHexToUintn (PtrPosition);
-  Guid->Data3     = (UINT16)Data;
-
-  //
-  // Data4[0..1]
-  //
-  for ( Index = 0 ; Index < 2 ; Index++) {
-    PtrBuffer++;
-    if ((*PtrBuffer == L'\0') || ( *(PtrBuffer + 1) == L'\0')) {
-      FreePool (Buffer);
-      return EFI_NOT_FOUND;
-    }
-    Digits[0]     = *PtrBuffer;
-    PtrBuffer++;
-    Digits[1]     = *PtrBuffer;
-    Digits[2]     = L'\0';
-    Data          = StrHexToUintn (Digits);
-    Guid->Data4[Index] = (UINT8)Data;
-  }
-
-  //
-  // skip the '-'
-  //
-  PtrBuffer++;
-  if ((*PtrBuffer != L'-' ) || ( *PtrBuffer == L'\0')) {
-    return EFI_NOT_FOUND;
-  }
-
-  //
-  // Data4[2..7]
-  //
-  for ( ; Index < 8; Index++) {
-    PtrBuffer++;
-    if ((*PtrBuffer == L'\0') || ( *(PtrBuffer + 1) == L'\0')) {
-      FreePool (Buffer);
-      return EFI_NOT_FOUND;
-    }
-    Digits[0]     = *PtrBuffer;
-    PtrBuffer++;
-    Digits[1]     = *PtrBuffer;
-    Digits[2]     = L'\0';
-    Data          = StrHexToUintn (Digits);
-    Guid->Data4[Index] = (UINT8)Data;
-  }
-
-  FreePool (Buffer);
-  
-  return EFI_SUCCESS;
-}
-
 /**
   Worker function that prints an EFI_GUID into specified Buffer.
 
-- 
2.9.0.windows.1

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