Add a lock to protect the critical region in Service APIs for gEfiBlockIoProtocolGuid...

[mirror_edk2.git] / EdkNt32Pkg / Dxe / WinNtThunk / Bus / SimpleFileSystem / WinNtSimpleFileSystem.c

diff --git a/EdkNt32Pkg/Dxe/WinNtThunk/Bus/SimpleFileSystem/WinNtSimpleFileSystem.c b/EdkNt32Pkg/Dxe/WinNtThunk/Bus/SimpleFileSystem/WinNtSimpleFileSystem.c
index 5552bc28be06f2b37a057ab84ec404e7fb3c09e7..525b45d78ec64feed1ea1c374da9f8939ef95b87 100644 (file)
--- a/EdkNt32Pkg/Dxe/WinNtThunk/Bus/SimpleFileSystem/WinNtSimpleFileSystem.c
+++ b/EdkNt32Pkg/Dxe/WinNtThunk/Bus/SimpleFileSystem/WinNtSimpleFileSystem.c
@@ -1,6 +1,6 @@
 /*++\r
 \r
-Copyright (c) 2006, Intel Corporation                                                         \r
+Copyright (c) 2006 - 2007, Intel Corporation                                                         \r
 All rights reserved. This program and the accompanying materials                          \r
 are licensed and made available under the terms and conditions of the BSD License         \r
 which accompanies this distribution.  The full text of the license may be found at        \r
@@ -30,7 +30,7 @@ EFI_DRIVER_BINDING_PROTOCOL gWinNtSimpleFileSystemDriverBinding = {
   WinNtSimpleFileSystemDriverBindingSupported,\r
   WinNtSimpleFileSystemDriverBindingStart,\r
   WinNtSimpleFileSystemDriverBindingStop,\r
-  0x10,\r
+  0xa,\r
   NULL,\r
   NULL\r
 };\r
@@ -478,11 +478,14 @@ Returns:
   EFI_STATUS                        Status;\r
   WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE *Private;\r
   WIN_NT_EFI_FILE_PRIVATE           *PrivateFile;\r
+  EFI_TPL                           OldTpl;\r
 \r
   if (This == NULL || Root == NULL) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);\r
+\r
   Private     = WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (This);\r
 \r
   PrivateFile = NULL;\r
@@ -557,6 +560,8 @@ Done:
     }\r
   }\r
 \r
+  gBS->RestoreTPL (OldTpl);\r
+\r
   return Status;\r
 }\r
 \r
@@ -662,9 +667,6 @@ Returns:
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
-  //\r
-  //\r
-  //\r
   PrivateFile     = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
   PrivateRoot     = WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem);\r
   NewPrivateFile  = NULL;\r
@@ -688,6 +690,32 @@ OpenRoot:
     FileName[StrLen (FileName) - 1]  = 0;\r
   }\r
 \r
+  //\r
+  // If file name does not equal to "." or "..", \r
+  // then we trim the leading/trailing blanks and trailing dots\r
+  //\r
+  if (StrCmp (FileName, L".") != 0 && StrCmp (FileName, L"..") != 0) {\r
+    //\r
+    // Trim leading blanks\r
+    //\r
+    Count = 0;\r
+    for (TempFileName = FileName;\r
+      *TempFileName != 0 && *TempFileName == L' ';\r
+      TempFileName++) {\r
+      Count++;\r
+    }\r
+    CutPrefix (FileName, Count);\r
+    //\r
+    // Trim trailing dots and blanks\r
+    //\r
+    for (TempFileName = FileName + StrLen (FileName) - 1; \r
+      TempFileName >= FileName && (*TempFileName == L' ' || *TempFileName == L'.');\r
+      TempFileName--) {\r
+      ;\r
+    }\r
+    *(TempFileName + 1) = 0;\r
+  }\r
+\r
   //\r
   // Attempt to open the file\r
   //\r
@@ -738,8 +766,13 @@ OpenRoot:
     StrCat (NewPrivateFile->FileName, FileName + 1);\r
   } else {\r
     StrCpy (NewPrivateFile->FileName, NewPrivateFile->FilePath);\r
-    StrCat (NewPrivateFile->FileName, L"\\");\r
-    StrCat (NewPrivateFile->FileName, FileName);\r
+    if (StrCmp (FileName, L"") != 0) {\r
+      //\r
+      // In case the filename becomes empty, especially after trimming dots and blanks\r
+      //    \r
+      StrCat (NewPrivateFile->FileName, L"\\");\r
+      StrCat (NewPrivateFile->FileName, FileName);\r
+    }\r
   }\r
 \r
   //\r
@@ -1081,11 +1114,14 @@ Returns:
 // TODO:    EFI_INVALID_PARAMETER - add return value to function comment\r
 {\r
   WIN_NT_EFI_FILE_PRIVATE *PrivateFile;\r
+  EFI_TPL                 OldTpl;\r
 \r
   if (This == NULL) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);\r
+  \r
   PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
 \r
   if (PrivateFile->LHandle != INVALID_HANDLE_VALUE) {\r
@@ -1108,6 +1144,9 @@ Returns:
   }\r
 \r
   gBS->FreePool (PrivateFile);\r
+\r
+  gBS->RestoreTPL (OldTpl);\r
+  \r
   return EFI_SUCCESS;\r
 }\r
 \r
@@ -1137,11 +1176,14 @@ Returns:
 {\r
   EFI_STATUS              Status;\r
   WIN_NT_EFI_FILE_PRIVATE *PrivateFile;\r
+  EFI_TPL                 OldTpl;\r
 \r
   if (This == NULL) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);\r
+  \r
   PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
 \r
   Status      = EFI_WARN_DELETE_FAILURE;\r
@@ -1173,6 +1215,8 @@ Returns:
   gBS->FreePool (PrivateFile->FileName);\r
   gBS->FreePool (PrivateFile);\r
 \r
+  gBS->RestoreTPL (OldTpl);\r
+\r
   return Status;\r
 }\r
 \r
@@ -1266,21 +1310,26 @@ Returns:
   UINT64                  Pos;\r
   UINT64                  FileSize;\r
   UINTN                   FileInfoSize;\r
+  EFI_TPL                 OldTpl;\r
 \r
   if (This == NULL || BufferSize == NULL || Buffer == NULL) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);\r
+  \r
   PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
 \r
   if (PrivateFile->LHandle == INVALID_HANDLE_VALUE) {\r
-    return EFI_DEVICE_ERROR;\r
+    Status = EFI_DEVICE_ERROR;\r
+    goto Done;\r
   }\r
 \r
   if (!PrivateFile->IsDirectoryPath) {\r
 \r
     if (This->GetPosition (This, &Pos) != EFI_SUCCESS) {\r
-      return EFI_DEVICE_ERROR;\r
+      Status = EFI_DEVICE_ERROR;\r
+      goto Done;\r
     }\r
 \r
     FileInfoSize = SIZE_OF_EFI_FILE_SYSTEM_INFO;\r
@@ -1313,7 +1362,8 @@ Returns:
     }\r
 \r
     if (EFI_ERROR (Status)) {\r
-      return EFI_DEVICE_ERROR;\r
+      Status = EFI_DEVICE_ERROR;\r
+      goto Done;\r
     }\r
 \r
     FileSize = FileInfo->FileSize;\r
@@ -1323,19 +1373,22 @@ Returns:
     if (Pos >= FileSize) {\r
       *BufferSize = 0;\r
       if (Pos == FileSize) {\r
-        return EFI_SUCCESS;\r
+        Status = EFI_SUCCESS;\r
+        goto Done;\r
       } else {\r
-        return EFI_DEVICE_ERROR;\r
+        Status = EFI_DEVICE_ERROR;\r
+        goto Done;\r
       }\r
     }\r
 \r
-    return PrivateFile->WinNtThunk->ReadFile (\r
+    Status = PrivateFile->WinNtThunk->ReadFile (\r
                                       PrivateFile->LHandle,\r
                                       Buffer,\r
                                       *BufferSize,\r
                                       BufferSize,\r
                                       NULL\r
                                       ) ? EFI_SUCCESS : EFI_DEVICE_ERROR;\r
+    goto Done;\r
   }\r
 \r
   //\r
@@ -1343,7 +1396,8 @@ Returns:
   //\r
   if (!PrivateFile->IsValidFindBuf) {\r
     *BufferSize = 0;\r
-    return EFI_SUCCESS;\r
+    Status = EFI_SUCCESS;\r
+    goto Done;\r
   }\r
 \r
   Size        = SIZE_OF_EFI_FILE_INFO;\r
@@ -1423,6 +1477,8 @@ Returns:
 \r
   *BufferSize = ResultSize;\r
 \r
+Done:\r
+  gBS->RestoreTPL (OldTpl);\r
   return Status;\r
 }\r
 \r
@@ -1470,26 +1526,33 @@ Returns:
 // TODO:    EFI_INVALID_PARAMETER - add return value to function comment\r
 {\r
   WIN_NT_EFI_FILE_PRIVATE *PrivateFile;\r
+  EFI_STATUS              Status;\r
+  EFI_TPL                 OldTpl;\r
 \r
   if (This == NULL || BufferSize == NULL || Buffer == NULL) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);\r
+  \r
   PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
 \r
   if (PrivateFile->LHandle == INVALID_HANDLE_VALUE) {\r
-    return EFI_DEVICE_ERROR;\r
+    Status = EFI_DEVICE_ERROR;\r
+    goto Done;\r
   }\r
 \r
   if (PrivateFile->IsDirectoryPath) {\r
-    return EFI_UNSUPPORTED;\r
+    Status = EFI_UNSUPPORTED;\r
+    goto Done;\r
   }\r
 \r
   if (PrivateFile->IsOpenedByRead) {\r
-    return EFI_ACCESS_DENIED;\r
+    Status = EFI_ACCESS_DENIED;\r
+    goto Done;\r
   }\r
 \r
-  return PrivateFile->WinNtThunk->WriteFile (\r
+  Status = PrivateFile->WinNtThunk->WriteFile (\r
                                     PrivateFile->LHandle,\r
                                     Buffer,\r
                                     *BufferSize,\r
@@ -1497,6 +1560,10 @@ Returns:
                                     NULL\r
                                     ) ? EFI_SUCCESS : EFI_DEVICE_ERROR;\r
 \r
+Done:\r
+  gBS->RestoreTPL (OldTpl);\r
+  return Status;\r
+\r
   //\r
   // bugbug: need to access windows error reporting\r
   //\r
@@ -1534,16 +1601,20 @@ Returns:
   UINT32                  PosLow;\r
   UINT32                  PosHigh;\r
   CHAR16                  *FileName;\r
+  EFI_TPL                 OldTpl;\r
 \r
   if (This == NULL) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);\r
+  \r
   PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
 \r
   if (PrivateFile->IsDirectoryPath) {\r
     if (Position != 0) {\r
-      return EFI_UNSUPPORTED;\r
+      Status = EFI_UNSUPPORTED;\r
+      goto Done;\r
     }\r
 \r
     Status = gBS->AllocatePool (\r
@@ -1553,7 +1624,7 @@ Returns:
                     );\r
 \r
     if (EFI_ERROR (Status)) {\r
-      return Status;\r
+      goto Done;\r
     }\r
 \r
     StrCpy (FileName, PrivateFile->FileName);\r
@@ -1586,6 +1657,8 @@ Returns:
     Status = (PosLow == 0xFFFFFFFF) ? EFI_DEVICE_ERROR : EFI_SUCCESS;\r
   }\r
 \r
+Done:\r
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);\r
   return Status;\r
 }\r
 \r
@@ -1620,11 +1693,13 @@ Returns:
   WIN_NT_EFI_FILE_PRIVATE *PrivateFile;\r
   INT32                   PositionHigh;\r
   UINT64                  PosHigh64;\r
+  EFI_TPL                 OldTpl;\r
 \r
   if (This == NULL || Position == NULL) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);\r
   PrivateFile   = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
 \r
   PositionHigh  = 0;\r
@@ -1632,7 +1707,8 @@ Returns:
 \r
   if (PrivateFile->IsDirectoryPath) {\r
 \r
-    return EFI_UNSUPPORTED;\r
+    Status = EFI_UNSUPPORTED;\r
+    goto Done;\r
 \r
   } else {\r
 \r
@@ -1654,6 +1730,7 @@ Returns:
   }\r
 \r
 Done:\r
+  gBS->RestoreTPL (OldTpl);\r
   return Status;\r
 }\r
 \r
@@ -1837,11 +1914,14 @@ Returns:
   BOOL                              NtStatus;\r
   UINTN                             Index;\r
   WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot;\r
+  EFI_TPL                           OldTpl;\r
 \r
   if (This == NULL || InformationType == NULL || BufferSize == NULL) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);\r
+\r
   PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
   PrivateRoot = WIN_NT_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem);\r
 \r
@@ -1854,7 +1934,8 @@ Returns:
   if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid)) {\r
     if (*BufferSize < SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel)) {\r
       *BufferSize = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel);\r
-      return EFI_BUFFER_TOO_SMALL;\r
+      Status = EFI_BUFFER_TOO_SMALL;\r
+      goto Done;\r
     }\r
 \r
     FileSystemInfoBuffer            = (EFI_FILE_SYSTEM_INFO *) Buffer;\r
@@ -1872,7 +1953,7 @@ Returns:
                     &DriveName\r
                     );\r
     if (EFI_ERROR (Status)) {\r
-      return Status;\r
+      goto Done;\r
     }\r
 \r
     StrCpy (DriveName, PrivateFile->FilePath);\r
@@ -1935,7 +2016,8 @@ Returns:
                                             NULL\r
                                             );\r
       if (!NtStatus) {\r
-        return EFI_DEVICE_ERROR;\r
+        Status = EFI_DEVICE_ERROR;\r
+        goto Done;\r
       }\r
     }\r
 \r
@@ -1947,7 +2029,8 @@ Returns:
   if (CompareGuid (InformationType, &gEfiFileSystemVolumeLabelInfoIdGuid)) {\r
     if (*BufferSize < StrSize (PrivateRoot->VolumeLabel)) {\r
       *BufferSize = StrSize (PrivateRoot->VolumeLabel);\r
-      return EFI_BUFFER_TOO_SMALL;\r
+      Status = EFI_BUFFER_TOO_SMALL;\r
+      goto Done;\r
     }\r
 \r
     StrCpy ((CHAR16 *) Buffer, PrivateRoot->VolumeLabel);\r
@@ -1955,6 +2038,8 @@ Returns:
     Status      = EFI_SUCCESS;\r
   }\r
 \r
+Done:\r
+  gBS->RestoreTPL (OldTpl);\r
   return Status;\r
 }\r
 \r
@@ -2032,6 +2117,7 @@ Returns:
   FILETIME                          NewLastWriteFileTime;\r
   WIN32_FIND_DATA                   FindBuf;\r
   EFI_FILE_SYSTEM_INFO              *NewFileSystemInfo;\r
+  EFI_TPL                           OldTpl;\r
 \r
   //\r
   // Check for invalid parameters.\r
@@ -2040,6 +2126,8 @@ Returns:
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);\r
+\r
   //\r
   // Initialise locals.\r
   //\r
@@ -2056,7 +2144,8 @@ Returns:
   //\r
   if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid)) {\r
     if (BufferSize < SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel)) {\r
-      return EFI_BAD_BUFFER_SIZE;\r
+      Status = EFI_BAD_BUFFER_SIZE;\r
+      goto Done;\r
     }\r
 \r
     NewFileSystemInfo = (EFI_FILE_SYSTEM_INFO *) Buffer;\r
@@ -2076,7 +2165,8 @@ Returns:
 \r
     StrCpy (PrivateRoot->VolumeLabel, NewFileSystemInfo->VolumeLabel);\r
 \r
-    return EFI_SUCCESS;\r
+    Status = EFI_SUCCESS;\r
+    goto Done;\r
   }\r
 \r
   //\r
@@ -2084,20 +2174,24 @@ Returns:
   //\r
   if (CompareGuid (InformationType, &gEfiFileSystemVolumeLabelInfoIdGuid)) {\r
     if (BufferSize < StrSize (PrivateRoot->VolumeLabel)) {\r
-      return EFI_BAD_BUFFER_SIZE;\r
+      Status = EFI_BAD_BUFFER_SIZE;\r
+      goto Done;\r
     }\r
 \r
     StrCpy (PrivateRoot->VolumeLabel, (CHAR16 *) Buffer);\r
 \r
-    return EFI_SUCCESS;\r
+    Status = EFI_SUCCESS;\r
+    goto Done;\r
   }\r
 \r
   if (!CompareGuid (InformationType, &gEfiFileInfoGuid)) {\r
-    return EFI_UNSUPPORTED;\r
+    Status = EFI_UNSUPPORTED;\r
+    goto Done;\r
   }\r
 \r
   if (BufferSize < SIZE_OF_EFI_FILE_INFO) {\r
-    return EFI_BAD_BUFFER_SIZE;\r
+    Status = EFI_BAD_BUFFER_SIZE;\r
+    goto Done;\r
   }\r
 \r
   //\r
@@ -2113,7 +2207,8 @@ Returns:
       (NewFileInfo->Attribute &~(EFI_FILE_VALID_ATTR)) ||\r
       (sizeof (UINTN) == 4 && NewFileInfo->Size > 0xFFFFFFFF)\r
       ) {\r
-    return EFI_INVALID_PARAMETER;\r
+    Status = EFI_INVALID_PARAMETER;\r
+    goto Done;\r
   }\r
 \r
   //\r
@@ -2542,6 +2637,7 @@ Done:
     gBS->FreePool (NewFileName);\r
   }\r
 \r
+  gBS->RestoreTPL (OldTpl);\r
   return Status;\r
 }\r
 \r
@@ -2581,35 +2677,47 @@ Returns:
 {\r
   BY_HANDLE_FILE_INFORMATION  FileInfo;\r
   WIN_NT_EFI_FILE_PRIVATE     *PrivateFile;\r
+  EFI_STATUS                  Status;\r
+  EFI_TPL                     OldTpl;\r
 \r
   if (This == NULL) {\r
     return EFI_INVALID_PARAMETER;\r
   }\r
 \r
+  OldTpl = gBS->RaiseTPL (EFI_TPL_CALLBACK);\r
+  \r
   PrivateFile = WIN_NT_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
 \r
   if (PrivateFile->LHandle == INVALID_HANDLE_VALUE) {\r
-    return EFI_DEVICE_ERROR;\r
+    Status = EFI_DEVICE_ERROR;\r
+    goto Done;\r
   }\r
 \r
   if (PrivateFile->IsDirectoryPath) {\r
-    return EFI_SUCCESS;\r
+    Status = EFI_SUCCESS;\r
+    goto Done;\r
   }\r
 \r
   if (PrivateFile->IsOpenedByRead) {\r
-    return EFI_ACCESS_DENIED;\r
+    Status = EFI_ACCESS_DENIED;\r
+    goto Done;\r
   }\r
 \r
   PrivateFile->WinNtThunk->GetFileInformationByHandle (PrivateFile->LHandle, &FileInfo);\r
 \r
   if (FileInfo.dwFileAttributes & FILE_ATTRIBUTE_READONLY) {\r
-    return EFI_ACCESS_DENIED;\r
+    Status = EFI_ACCESS_DENIED;\r
+    goto Done;\r
   }\r
 \r
-  return PrivateFile->WinNtThunk->FlushFileBuffers (PrivateFile->LHandle) ? EFI_SUCCESS : EFI_DEVICE_ERROR;\r
+  Status = PrivateFile->WinNtThunk->FlushFileBuffers (PrivateFile->LHandle) ? EFI_SUCCESS : EFI_DEVICE_ERROR;\r
 \r
+Done:\r
+  gBS->RestoreTPL (OldTpl);\r
+  return Status;\r
   //\r
   // bugbug: - Use Windows error reporting.\r
   //\r
 }\r
 \r
+\r