--- /dev/null
+/*++\r
+\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
+http://opensource.org/licenses/bsd-license.php \r
+ \r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+\r
+Module Name:\r
+\r
+ UnixSimpleFileSystem.c\r
+\r
+Abstract:\r
+\r
+ Produce Simple File System abstractions for directories on your PC using Posix APIs.\r
+ The configuration of what devices to mount or emulate comes from UNIX \r
+ environment variables. The variables must be visible to the Microsoft* \r
+ Developer Studio for them to work.\r
+\r
+ * Other names and brands may be claimed as the property of others.\r
+\r
+--*/\r
+\r
+#include "UnixSimpleFileSystem.h"\r
+\r
+EFI_DRIVER_BINDING_PROTOCOL gUnixSimpleFileSystemDriverBinding = {\r
+ UnixSimpleFileSystemDriverBindingSupported,\r
+ UnixSimpleFileSystemDriverBindingStart,\r
+ UnixSimpleFileSystemDriverBindingStop,\r
+ 0xa,\r
+ NULL,\r
+ NULL\r
+};\r
+\r
+\r
+CHAR16 *\r
+EfiStrChr (\r
+ IN CHAR16 *Str,\r
+ IN CHAR16 Chr\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Locate the first occurance of a character in a string.\r
+\r
+Arguments:\r
+\r
+ Str - Pointer to NULL terminated unicode string.\r
+ Chr - Character to locate.\r
+\r
+Returns:\r
+\r
+ If Str is NULL, then NULL is returned.\r
+ If Chr is not contained in Str, then NULL is returned.\r
+ If Chr is contained in Str, then a pointer to the first occurance of Chr in Str is returned.\r
+\r
+--*/\r
+{\r
+ if (Str == NULL) {\r
+ return Str;\r
+ }\r
+\r
+ while (*Str != '\0' && *Str != Chr) {\r
+ ++Str;\r
+ }\r
+\r
+ return (*Str == Chr) ? Str : NULL;\r
+}\r
+\r
+BOOLEAN\r
+IsZero (\r
+ IN VOID *Buffer,\r
+ IN UINTN Length\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ Buffer - TODO: add argument description\r
+ Length - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+--*/\r
+{\r
+ if (Buffer == NULL || Length == 0) {\r
+ return FALSE;\r
+ }\r
+\r
+ if (*(UINT8 *) Buffer != 0) {\r
+ return FALSE;\r
+ }\r
+\r
+ if (Length > 1) {\r
+ if (!CompareMem (Buffer, (UINT8 *) Buffer + 1, Length - 1)) {\r
+ return FALSE;\r
+ }\r
+ }\r
+\r
+ return TRUE;\r
+}\r
+\r
+VOID\r
+CutPrefix (\r
+ IN CHAR8 *Str,\r
+ IN UINTN Count\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ Str - TODO: add argument description\r
+ Count - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+--*/\r
+{\r
+ CHAR8 *Pointer;\r
+\r
+ if (AsciiStrLen (Str) < Count) {\r
+ ASSERT (0);\r
+ }\r
+\r
+ for (Pointer = Str; *(Pointer + Count); Pointer++) {\r
+ *Pointer = *(Pointer + Count);\r
+ }\r
+\r
+ *Pointer = *(Pointer + Count);\r
+}\r
+\r
+\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemDriverBindingSupported (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Check to see if the driver supports a given controller.\r
+\r
+Arguments:\r
+\r
+ This - A pointer to an instance of the EFI_DRIVER_BINDING_PROTOCOL.\r
+\r
+ ControllerHandle - EFI handle of the controller to test.\r
+\r
+ RemainingDevicePath - Pointer to remaining portion of a device path.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The device specified by ControllerHandle and RemainingDevicePath is supported by the driver\r
+ specified by This.\r
+\r
+ EFI_ALREADY_STARTED - The device specified by ControllerHandle and RemainingDevicePath is already being managed by\r
+ the driver specified by This.\r
+\r
+ EFI_ACCESS_DENIED - The device specified by ControllerHandle and RemainingDevicePath is already being managed by\r
+ a different driver or an application that requires exclusive access.\r
+\r
+ EFI_UNSUPPORTED - The device specified by ControllerHandle and RemainingDevicePath is not supported by the\r
+ driver specified by This.\r
+\r
+--*/\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_UNIX_IO_PROTOCOL *UnixIo;\r
+\r
+ //\r
+ // Open the IO Abstraction(s) needed to perform the supported test\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ ControllerHandle,\r
+ &gEfiUnixIoProtocolGuid,\r
+ (VOID **)&UnixIo,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Make sure GUID is for a File System handle.\r
+ //\r
+ Status = EFI_UNSUPPORTED;\r
+ if (CompareGuid (UnixIo->TypeGuid, &gEfiUnixFileSystemGuid)) {\r
+ Status = EFI_SUCCESS;\r
+ }\r
+\r
+ //\r
+ // Close the I/O Abstraction(s) used to perform the supported test\r
+ //\r
+ gBS->CloseProtocol (\r
+ ControllerHandle,\r
+ &gEfiUnixIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle\r
+ );\r
+\r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemDriverBindingStart (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Starts a device controller or a bus controller.\r
+\r
+Arguments:\r
+\r
+ This - A pointer to an instance of the EFI_DRIVER_BINDING_PROTOCOL.\r
+\r
+ ControllerHandle - EFI handle of the controller to start.\r
+\r
+ RemainingDevicePath - Pointer to remaining portion of a device path.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The device or bus controller has been started.\r
+\r
+ EFI_DEVICE_ERROR - The device could not be started due to a device failure.\r
+\r
+ EFI_OUT_OF_RESOURCES - The request could not be completed due to lack of resources.\r
+\r
+--*/\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_UNIX_IO_PROTOCOL *UnixIo;\r
+ UNIX_SIMPLE_FILE_SYSTEM_PRIVATE *Private;\r
+ INTN i;\r
+\r
+ Private = NULL;\r
+\r
+ //\r
+ // Open the IO Abstraction(s) needed\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ ControllerHandle,\r
+ &gEfiUnixIoProtocolGuid,\r
+ (VOID **)&UnixIo,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_BY_DRIVER\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ //\r
+ // Validate GUID\r
+ //\r
+ if (!CompareGuid (UnixIo->TypeGuid, &gEfiUnixFileSystemGuid)) {\r
+ Status = EFI_UNSUPPORTED;\r
+ goto Done;\r
+ }\r
+\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ sizeof (UNIX_SIMPLE_FILE_SYSTEM_PRIVATE),\r
+ (VOID **)&Private\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ Private->Signature = UNIX_SIMPLE_FILE_SYSTEM_PRIVATE_SIGNATURE;\r
+ Private->UnixThunk = UnixIo->UnixThunk;\r
+ Private->FilePath = NULL;\r
+ Private->VolumeLabel = NULL;\r
+\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ StrLen (UnixIo->EnvString) + 1,\r
+ (VOID **)&Private->FilePath\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ for (i = 0; UnixIo->EnvString[i] != 0; i++)\r
+ Private->FilePath[i] = UnixIo->EnvString[i];\r
+ Private->FilePath[i] = 0;\r
+\r
+ Private->VolumeLabel = NULL;\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ StrSize (L"EFI_EMULATED"),\r
+ (VOID **)&Private->VolumeLabel\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ StrCpy (Private->VolumeLabel, L"EFI_EMULATED");\r
+\r
+ Private->SimpleFileSystem.Revision = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION;\r
+ Private->SimpleFileSystem.OpenVolume = UnixSimpleFileSystemOpenVolume;\r
+\r
+ Private->ControllerNameTable = NULL;\r
+\r
+ AddUnicodeString (\r
+ "eng",\r
+ gUnixSimpleFileSystemComponentName.SupportedLanguages,\r
+ &Private->ControllerNameTable,\r
+ UnixIo->EnvString\r
+ );\r
+\r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
+ &ControllerHandle,\r
+ &gEfiSimpleFileSystemProtocolGuid,\r
+ &Private->SimpleFileSystem,\r
+ NULL\r
+ );\r
+\r
+Done:\r
+ if (EFI_ERROR (Status)) {\r
+\r
+ if (Private != NULL) {\r
+\r
+ if (Private->VolumeLabel != NULL)\r
+ gBS->FreePool (Private->VolumeLabel);\r
+ if (Private->FilePath != NULL)\r
+ gBS->FreePool (Private->FilePath);\r
+ FreeUnicodeStringTable (Private->ControllerNameTable);\r
+\r
+ gBS->FreePool (Private);\r
+ }\r
+\r
+ gBS->CloseProtocol (\r
+ ControllerHandle,\r
+ &gEfiUnixIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle\r
+ );\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemDriverBindingStop (\r
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN UINTN NumberOfChildren,\r
+ IN EFI_HANDLE *ChildHandleBuffer\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ This - A pointer to an instance of the EFI_DRIVER_BINDING_PROTOCOL.\r
+\r
+ ControllerHandle - A handle to the device to be stopped.\r
+\r
+ NumberOfChildren - The number of child device handles in ChildHandleBuffer.\r
+\r
+ ChildHandleBuffer - An array of child device handles to be freed.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The device has been stopped.\r
+\r
+ EFI_DEVICE_ERROR - The device could not be stopped due to a device failure.\r
+\r
+--*/\r
+// TODO: EFI_UNSUPPORTED - add return value to function comment\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *SimpleFileSystem;\r
+ UNIX_SIMPLE_FILE_SYSTEM_PRIVATE *Private;\r
+\r
+ //\r
+ // Get our context back\r
+ //\r
+ Status = gBS->OpenProtocol (\r
+ ControllerHandle,\r
+ &gEfiSimpleFileSystemProtocolGuid,\r
+ (VOID **)&SimpleFileSystem,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle,\r
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ Private = UNIX_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (SimpleFileSystem);\r
+\r
+ //\r
+ // Uninstall the Simple File System Protocol from ControllerHandle\r
+ //\r
+ Status = gBS->UninstallMultipleProtocolInterfaces (\r
+ ControllerHandle,\r
+ &gEfiSimpleFileSystemProtocolGuid,\r
+ &Private->SimpleFileSystem,\r
+ NULL\r
+ );\r
+ if (!EFI_ERROR (Status)) {\r
+ Status = gBS->CloseProtocol (\r
+ ControllerHandle,\r
+ &gEfiUnixIoProtocolGuid,\r
+ This->DriverBindingHandle,\r
+ ControllerHandle\r
+ );\r
+ }\r
+\r
+ if (!EFI_ERROR (Status)) {\r
+ //\r
+ // Free our instance data\r
+ //\r
+ FreeUnicodeStringTable (Private->ControllerNameTable);\r
+\r
+ gBS->FreePool (Private);\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemOpenVolume (\r
+ IN EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *This,\r
+ OUT EFI_FILE **Root\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Open the root directory on a volume.\r
+\r
+Arguments:\r
+\r
+ This - A pointer to the volume to open.\r
+\r
+ Root - A pointer to storage for the returned opened file handle of the root directory.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The volume was opened.\r
+\r
+ EFI_UNSUPPORTED - The volume does not support the requested file system type.\r
+\r
+ EFI_NO_MEDIA - The device has no media.\r
+\r
+ EFI_DEVICE_ERROR - The device reported an error.\r
+\r
+ EFI_VOLUME_CORRUPTED - The file system structures are corrupted.\r
+\r
+ EFI_ACCESS_DENIED - The service denied access to the file.\r
+\r
+ EFI_OUT_OF_RESOURCES - The file volume could not be opened due to lack of resources.\r
+\r
+ EFI_MEDIA_CHANGED - The device has new media or the media is no longer supported.\r
+\r
+--*/\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ EFI_STATUS Status;\r
+ UNIX_SIMPLE_FILE_SYSTEM_PRIVATE *Private;\r
+ UNIX_EFI_FILE_PRIVATE *PrivateFile;\r
+ EFI_TPL OldTpl;\r
+\r
+ if (This == NULL || Root == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
+\r
+ Private = UNIX_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (This);\r
+\r
+ PrivateFile = NULL;\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ sizeof (UNIX_EFI_FILE_PRIVATE),\r
+ (VOID **)&PrivateFile\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ PrivateFile->FileName = NULL;\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ AsciiStrSize (Private->FilePath),\r
+ (VOID **)&PrivateFile->FileName\r
+ );\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ AsciiStrCpy (PrivateFile->FileName, Private->FilePath);\r
+ PrivateFile->Signature = UNIX_EFI_FILE_PRIVATE_SIGNATURE;\r
+ PrivateFile->UnixThunk = Private->UnixThunk;\r
+ PrivateFile->SimpleFileSystem = This;\r
+ PrivateFile->IsRootDirectory = TRUE;\r
+ PrivateFile->IsDirectoryPath = TRUE;\r
+ PrivateFile->IsOpenedByRead = TRUE;\r
+ PrivateFile->EfiFile.Revision = EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION;\r
+ PrivateFile->EfiFile.Open = UnixSimpleFileSystemOpen;\r
+ PrivateFile->EfiFile.Close = UnixSimpleFileSystemClose;\r
+ PrivateFile->EfiFile.Delete = UnixSimpleFileSystemDelete;\r
+ PrivateFile->EfiFile.Read = UnixSimpleFileSystemRead;\r
+ PrivateFile->EfiFile.Write = UnixSimpleFileSystemWrite;\r
+ PrivateFile->EfiFile.GetPosition = UnixSimpleFileSystemGetPosition;\r
+ PrivateFile->EfiFile.SetPosition = UnixSimpleFileSystemSetPosition;\r
+ PrivateFile->EfiFile.GetInfo = UnixSimpleFileSystemGetInfo;\r
+ PrivateFile->EfiFile.SetInfo = UnixSimpleFileSystemSetInfo;\r
+ PrivateFile->EfiFile.Flush = UnixSimpleFileSystemFlush;\r
+ PrivateFile->fd = -1;\r
+ PrivateFile->Dir = NULL;\r
+ PrivateFile->Dirent = NULL;\r
+ \r
+ *Root = &PrivateFile->EfiFile;\r
+\r
+ PrivateFile->Dir = PrivateFile->UnixThunk->OpenDir(PrivateFile->FileName);\r
+\r
+ if (PrivateFile->Dir == NULL) {\r
+ Status = EFI_ACCESS_DENIED;\r
+ }\r
+ else {\r
+ Status = EFI_SUCCESS;\r
+ }\r
+\r
+Done:\r
+ if (EFI_ERROR (Status)) {\r
+ if (PrivateFile) {\r
+ if (PrivateFile->FileName) {\r
+ gBS->FreePool (PrivateFile->FileName);\r
+ }\r
+\r
+ gBS->FreePool (PrivateFile);\r
+ }\r
+ }\r
+\r
+ gBS->RestoreTPL (OldTpl);\r
+\r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemOpen (\r
+ IN EFI_FILE *This,\r
+ OUT EFI_FILE **NewHandle,\r
+ IN CHAR16 *FileName,\r
+ IN UINT64 OpenMode,\r
+ IN UINT64 Attributes\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Open a file relative to the source file location.\r
+\r
+Arguments:\r
+\r
+ This - A pointer to the source file location.\r
+\r
+ NewHandle - Pointer to storage for the new file handle.\r
+\r
+ FileName - Pointer to the file name to be opened.\r
+\r
+ OpenMode - File open mode information.\r
+\r
+ Attributes - File creation attributes.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The file was opened.\r
+\r
+ EFI_NOT_FOUND - The file could not be found in the volume.\r
+\r
+ EFI_NO_MEDIA - The device has no media.\r
+\r
+ EFI_MEDIA_CHANGED - The device has new media or the media is no longer supported.\r
+\r
+ EFI_DEVICE_ERROR - The device reported an error.\r
+\r
+ EFI_VOLUME_CORRUPTED - The file system structures are corrupted.\r
+\r
+ EFI_WRITE_PROTECTED - The volume or file is write protected.\r
+\r
+ EFI_ACCESS_DENIED - The service denied access to the file.\r
+\r
+ EFI_OUT_OF_RESOURCES - Not enough resources were available to open the file.\r
+\r
+ EFI_VOLUME_FULL - There is not enough space left to create the new file.\r
+\r
+--*/\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ EFI_FILE *Root;\r
+ UNIX_EFI_FILE_PRIVATE *PrivateFile;\r
+ UNIX_EFI_FILE_PRIVATE *NewPrivateFile;\r
+ UNIX_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot;\r
+ EFI_STATUS Status;\r
+ CHAR16 *Src;\r
+ char *Dst;\r
+ CHAR8 *RealFileName;\r
+ char *ParseFileName;\r
+ char *GuardPointer;\r
+ CHAR8 TempChar;\r
+ UINTN Count;\r
+ BOOLEAN TrailingDash;\r
+ BOOLEAN LoopFinish;\r
+ UINTN InfoSize;\r
+ EFI_FILE_INFO *Info;\r
+\r
+ TrailingDash = FALSE;\r
+\r
+ //\r
+ // Check for obvious invalid parameters.\r
+ //\r
+ if (This == NULL || NewHandle == NULL || FileName == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ switch (OpenMode) {\r
+ case EFI_FILE_MODE_CREATE | EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE:\r
+ if (Attributes &~EFI_FILE_VALID_ATTR) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (Attributes & EFI_FILE_READ_ONLY) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ //\r
+ // fall through\r
+ //\r
+ case EFI_FILE_MODE_READ:\r
+ case EFI_FILE_MODE_READ | EFI_FILE_MODE_WRITE:\r
+ break;\r
+\r
+ default:\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+\r
+ PrivateFile = UNIX_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
+ PrivateRoot = UNIX_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem);\r
+ NewPrivateFile = NULL;\r
+\r
+ //\r
+ // BUGBUG: assume an open of root\r
+ // if current location, return current data\r
+ //\r
+ if (StrCmp (FileName, L"\\") == 0\r
+ || (StrCmp (FileName, L".") == 0 && PrivateFile->IsRootDirectory)) {\r
+ //\r
+ // BUGBUG: assume an open root\r
+ //\r
+OpenRoot:\r
+ Status = UnixSimpleFileSystemOpenVolume (PrivateFile->SimpleFileSystem, &Root);\r
+ NewPrivateFile = UNIX_EFI_FILE_PRIVATE_DATA_FROM_THIS (Root);\r
+ goto Done;\r
+ }\r
+\r
+ if (FileName[StrLen (FileName) - 1] == L'\\') {\r
+ TrailingDash = TRUE;\r
+ FileName[StrLen (FileName) - 1] = 0;\r
+ }\r
+\r
+ //\r
+ // Attempt to open the file\r
+ //\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ sizeof (UNIX_EFI_FILE_PRIVATE),\r
+ (VOID **)&NewPrivateFile\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ CopyMem (NewPrivateFile, PrivateFile, sizeof (UNIX_EFI_FILE_PRIVATE));\r
+\r
+ NewPrivateFile->FileName = NULL;\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ AsciiStrSize (PrivateFile->FileName) + 1 + StrLen (FileName) + 1,\r
+ (VOID **)&NewPrivateFile->FileName\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ if (*FileName == L'\\') {\r
+ AsciiStrCpy (NewPrivateFile->FileName, PrivateRoot->FilePath);\r
+ // Skip first '\'.\r
+ Src = FileName + 1;\r
+ } else {\r
+ AsciiStrCpy (NewPrivateFile->FileName, PrivateFile->FileName);\r
+ Src = FileName;\r
+ }\r
+ Dst = NewPrivateFile->FileName + AsciiStrLen(NewPrivateFile->FileName);\r
+ GuardPointer = NewPrivateFile->FileName + AsciiStrLen(PrivateRoot->FilePath);\r
+ *Dst++ = '/';\r
+ // Convert unicode to ascii and '\' to '/'\r
+ while (*Src) {\r
+ if (*Src == '\\')\r
+ *Dst++ = '/';\r
+ else\r
+ *Dst++ = *Src;\r
+ Src++;\r
+ }\r
+ *Dst = 0;\r
+ \r
+\r
+ //\r
+ // Get rid of . and .., except leading . or ..\r
+ //\r
+\r
+ //\r
+ // GuardPointer protect simplefilesystem root path not be destroyed\r
+ //\r
+\r
+ LoopFinish = FALSE;\r
+\r
+ while (!LoopFinish) {\r
+\r
+ LoopFinish = TRUE;\r
+\r
+ for (ParseFileName = GuardPointer; *ParseFileName; ParseFileName++) {\r
+ if (*ParseFileName == '.' &&\r
+ (*(ParseFileName + 1) == 0 || *(ParseFileName + 1) == '/') &&\r
+ *(ParseFileName - 1) == '/'\r
+ ) {\r
+\r
+ //\r
+ // cut /.\r
+ //\r
+ CutPrefix (ParseFileName - 1, 2);\r
+ LoopFinish = FALSE;\r
+ break;\r
+ }\r
+\r
+ if (*ParseFileName == '.' &&\r
+ *(ParseFileName + 1) == '.' &&\r
+ (*(ParseFileName + 2) == 0 || *(ParseFileName + 2) == '/') &&\r
+ *(ParseFileName - 1) == '/'\r
+ ) {\r
+\r
+ ParseFileName--;\r
+ Count = 3;\r
+\r
+ while (ParseFileName != GuardPointer) {\r
+ ParseFileName--;\r
+ Count++;\r
+ if (*ParseFileName == '/') {\r
+ break;\r
+ }\r
+ }\r
+\r
+ //\r
+ // cut /.. and its left directory\r
+ //\r
+ CutPrefix (ParseFileName, Count);\r
+ LoopFinish = FALSE;\r
+ break;\r
+ }\r
+ }\r
+ }\r
+\r
+ if (AsciiStrCmp (NewPrivateFile->FileName, PrivateRoot->FilePath) == 0) {\r
+ NewPrivateFile->IsRootDirectory = TRUE;\r
+ gBS->FreePool (NewPrivateFile->FileName);\r
+ gBS->FreePool (NewPrivateFile);\r
+ goto OpenRoot;\r
+ }\r
+\r
+ RealFileName = NewPrivateFile->FileName + AsciiStrLen(NewPrivateFile->FileName) - 1;\r
+ while (RealFileName > NewPrivateFile->FileName && *RealFileName != '/')\r
+ RealFileName--;\r
+\r
+ TempChar = *(RealFileName - 1);\r
+ *(RealFileName - 1) = 0;\r
+\r
+ *(RealFileName - 1) = TempChar;\r
+\r
+\r
+\r
+ //\r
+ // Test whether file or directory\r
+ //\r
+ NewPrivateFile->IsRootDirectory = FALSE;\r
+ NewPrivateFile->fd = -1;\r
+ NewPrivateFile->Dir = NULL;\r
+ if (OpenMode & EFI_FILE_MODE_CREATE) {\r
+ if (Attributes & EFI_FILE_DIRECTORY) {\r
+ NewPrivateFile->IsDirectoryPath = TRUE;\r
+ } else {\r
+ NewPrivateFile->IsDirectoryPath = FALSE;\r
+ }\r
+ } else {\r
+ struct stat finfo;\r
+ int res = NewPrivateFile->UnixThunk->Stat (NewPrivateFile->FileName, &finfo);\r
+ if (res == 0 && S_ISDIR(finfo.st_mode))\r
+ NewPrivateFile->IsDirectoryPath = TRUE;\r
+ else\r
+ NewPrivateFile->IsDirectoryPath = FALSE;\r
+ }\r
+\r
+ if (OpenMode & EFI_FILE_MODE_WRITE) {\r
+ NewPrivateFile->IsOpenedByRead = FALSE;\r
+ } else {\r
+ NewPrivateFile->IsOpenedByRead = TRUE;\r
+ }\r
+\r
+ Status = EFI_SUCCESS;\r
+\r
+ //\r
+ // deal with directory\r
+ //\r
+ if (NewPrivateFile->IsDirectoryPath) {\r
+\r
+ if ((OpenMode & EFI_FILE_MODE_CREATE)) {\r
+ //\r
+ // Create a directory\r
+ //\r
+ if (NewPrivateFile->UnixThunk->MkDir (NewPrivateFile->FileName, 0777) != 0) {\r
+ INTN LastError;\r
+\r
+ LastError = PrivateFile->UnixThunk->GetErrno ();\r
+ if (LastError != EEXIST) {\r
+ //gBS->FreePool (TempFileName);\r
+ Status = EFI_ACCESS_DENIED;\r
+ goto Done;\r
+ }\r
+ }\r
+ }\r
+\r
+ NewPrivateFile->Dir = NewPrivateFile->UnixThunk->OpenDir\r
+ (NewPrivateFile->FileName);\r
+\r
+ if (NewPrivateFile->Dir == NULL) {\r
+ if (PrivateFile->UnixThunk->GetErrno () == EACCES) {\r
+ Status = EFI_ACCESS_DENIED;\r
+ } else {\r
+ Status = EFI_NOT_FOUND;\r
+ }\r
+\r
+ goto Done;\r
+ }\r
+\r
+ } else {\r
+ //\r
+ // deal with file\r
+ //\r
+ NewPrivateFile->fd = NewPrivateFile->UnixThunk->Open\r
+ (NewPrivateFile->FileName,\r
+ ((OpenMode & EFI_FILE_MODE_CREATE) ? O_CREAT : 0)\r
+ | (NewPrivateFile->IsOpenedByRead ? O_RDONLY : O_RDWR),\r
+ 0666);\r
+ if (NewPrivateFile->fd < 0) {\r
+ if (PrivateFile->UnixThunk->GetErrno () == ENOENT) {\r
+ Status = EFI_NOT_FOUND;\r
+ } else {\r
+ Status = EFI_ACCESS_DENIED;\r
+ }\r
+ }\r
+ }\r
+\r
+ if ((OpenMode & EFI_FILE_MODE_CREATE) && Status == EFI_SUCCESS) {\r
+ //\r
+ // Set the attribute\r
+ //\r
+ InfoSize = 0;\r
+ Info = NULL;\r
+\r
+ Status = UnixSimpleFileSystemGetInfo (&NewPrivateFile->EfiFile, &gEfiFileInfoGuid, &InfoSize, Info);\r
+\r
+ if (Status != EFI_BUFFER_TOO_SMALL) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Done;\r
+ }\r
+\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ InfoSize,\r
+ (VOID **)&Info\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ Status = UnixSimpleFileSystemGetInfo (&NewPrivateFile->EfiFile, &gEfiFileInfoGuid, &InfoSize, Info);\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ Info->Attribute = Attributes;\r
+\r
+ UnixSimpleFileSystemSetInfo (&NewPrivateFile->EfiFile, &gEfiFileInfoGuid, InfoSize, Info);\r
+ }\r
+\r
+Done: ;\r
+ if (TrailingDash) {\r
+ FileName[StrLen (FileName) + 1] = 0;\r
+ FileName[StrLen (FileName)] = L'\\';\r
+ }\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ if (NewPrivateFile) {\r
+ if (NewPrivateFile->FileName) {\r
+ gBS->FreePool (NewPrivateFile->FileName);\r
+ }\r
+\r
+ gBS->FreePool (NewPrivateFile);\r
+ }\r
+ } else {\r
+ *NewHandle = &NewPrivateFile->EfiFile;\r
+ }\r
+\r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemClose (\r
+ IN EFI_FILE *This\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Close the specified file handle.\r
+\r
+Arguments:\r
+\r
+ This - Pointer to a returned opened file handle.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The file handle has been closed.\r
+\r
+--*/\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ UNIX_EFI_FILE_PRIVATE *PrivateFile;\r
+ EFI_TPL OldTpl;\r
+\r
+ if (This == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ PrivateFile = UNIX_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
+\r
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
+\r
+ if (PrivateFile->fd >= 0) {\r
+ PrivateFile->UnixThunk->Close (PrivateFile->fd);\r
+ }\r
+ if (PrivateFile->Dir != NULL) {\r
+ PrivateFile->UnixThunk->CloseDir (PrivateFile->Dir);\r
+ }\r
+\r
+ PrivateFile->fd = -1;\r
+ PrivateFile->Dir = NULL;\r
+\r
+ if (PrivateFile->FileName) {\r
+ gBS->FreePool (PrivateFile->FileName);\r
+ }\r
+\r
+ gBS->FreePool (PrivateFile);\r
+\r
+ gBS->RestoreTPL (OldTpl);\r
+ \r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemDelete (\r
+ IN EFI_FILE *This\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Close and delete a file.\r
+\r
+Arguments:\r
+\r
+ This - Pointer to a returned opened file handle.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The file handle was closed and deleted.\r
+\r
+ EFI_WARN_DELETE_FAILURE - The handle was closed but could not be deleted.\r
+\r
+--*/\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ EFI_STATUS Status;\r
+ UNIX_EFI_FILE_PRIVATE *PrivateFile;\r
+ EFI_TPL OldTpl;\r
+\r
+ if (This == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
+ \r
+ PrivateFile = UNIX_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
+\r
+ Status = EFI_WARN_DELETE_FAILURE;\r
+\r
+ if (PrivateFile->IsDirectoryPath) {\r
+ if (PrivateFile->Dir != NULL) {\r
+ PrivateFile->UnixThunk->CloseDir (PrivateFile->Dir);\r
+ PrivateFile->Dir = NULL;\r
+ }\r
+\r
+ if (PrivateFile->UnixThunk->RmDir (PrivateFile->FileName) == 0) {\r
+ Status = EFI_SUCCESS;\r
+ }\r
+ } else {\r
+ PrivateFile->UnixThunk->Close (PrivateFile->fd);\r
+ PrivateFile->fd = -1;\r
+\r
+ if (!PrivateFile->IsOpenedByRead) {\r
+ if (!PrivateFile->UnixThunk->UnLink (PrivateFile->FileName)) {\r
+ Status = EFI_SUCCESS;\r
+ }\r
+ }\r
+ }\r
+\r
+ gBS->FreePool (PrivateFile->FileName);\r
+ gBS->FreePool (PrivateFile);\r
+\r
+ gBS->RestoreTPL (OldTpl);\r
+\r
+ return Status;\r
+}\r
+\r
+STATIC\r
+VOID\r
+UnixSystemTimeToEfiTime (\r
+ EFI_UNIX_THUNK_PROTOCOL *UnixThunk,\r
+ IN time_t SystemTime,\r
+ OUT EFI_TIME *Time\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ SystemTime - TODO: add argument description\r
+ TimeZone - TODO: add argument description\r
+ Time - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+--*/\r
+{\r
+ struct tm *tm;\r
+ tm = UnixThunk->GmTime (&SystemTime);\r
+ Time->Year = tm->tm_year;\r
+ Time->Month = tm->tm_mon;\r
+ Time->Day = tm->tm_mday;\r
+ Time->Hour = tm->tm_hour;\r
+ Time->Minute = tm->tm_min;\r
+ Time->Second = tm->tm_sec;\r
+ Time->Nanosecond = 0;\r
+\r
+ Time->TimeZone = UnixThunk->GetTimeZone ();\r
+\r
+ if (UnixThunk->GetDayLight ()) {\r
+ Time->Daylight = EFI_TIME_ADJUST_DAYLIGHT;\r
+ }\r
+}\r
+\r
+STATIC\r
+EFI_STATUS\r
+UnixSimpleFileSystemFileInfo (\r
+ UNIX_EFI_FILE_PRIVATE *PrivateFile,\r
+ IN CHAR8 *FileName,\r
+ IN OUT UINTN *BufferSize,\r
+ OUT VOID *Buffer\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ PrivateFile - TODO: add argument description\r
+ BufferSize - TODO: add argument description\r
+ Buffer - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+--*/\r
+{\r
+ EFI_STATUS Status;\r
+ UINTN Size;\r
+ UINTN NameSize;\r
+ UINTN ResultSize;\r
+ EFI_FILE_INFO *Info;\r
+ CHAR8 *RealFileName;\r
+ CHAR8 *TempPointer;\r
+ CHAR16 *BufferFileName;\r
+ struct stat buf;\r
+\r
+ if (FileName != NULL) {\r
+ RealFileName = FileName;\r
+ }\r
+ else if (PrivateFile->IsRootDirectory) {\r
+ RealFileName = "";\r
+ } else {\r
+ RealFileName = PrivateFile->FileName;\r
+ }\r
+\r
+ TempPointer = RealFileName;\r
+ while (*TempPointer) {\r
+ if (*TempPointer == '/') {\r
+ RealFileName = TempPointer + 1;\r
+ }\r
+\r
+ TempPointer++;\r
+ }\r
+\r
+ Size = SIZE_OF_EFI_FILE_INFO;\r
+ NameSize = AsciiStrSize (RealFileName) * 2;\r
+ ResultSize = Size + NameSize;\r
+\r
+ if (*BufferSize < ResultSize) {\r
+ *BufferSize = ResultSize;\r
+ return EFI_BUFFER_TOO_SMALL;\r
+ }\r
+ if (PrivateFile->UnixThunk->Stat (\r
+ FileName == NULL ? PrivateFile->FileName : FileName,\r
+ &buf) < 0)\r
+ return EFI_DEVICE_ERROR;\r
+\r
+ Status = EFI_SUCCESS;\r
+\r
+ Info = Buffer;\r
+ ZeroMem (Info, ResultSize);\r
+\r
+ Info->Size = ResultSize;\r
+ Info->FileSize = buf.st_size;\r
+ Info->PhysicalSize = MultU64x32 (buf.st_blocks, buf.st_blksize);\r
+\r
+ UnixSystemTimeToEfiTime (PrivateFile->UnixThunk, buf.st_ctime, &Info->CreateTime);\r
+ UnixSystemTimeToEfiTime (PrivateFile->UnixThunk, buf.st_atime, &Info->LastAccessTime);\r
+ UnixSystemTimeToEfiTime (PrivateFile->UnixThunk, buf.st_mtime, &Info->ModificationTime);\r
+\r
+ if (!(buf.st_mode & S_IWUSR)) {\r
+ Info->Attribute |= EFI_FILE_READ_ONLY;\r
+ }\r
+\r
+ if (S_ISDIR(buf.st_mode)) {\r
+ Info->Attribute |= EFI_FILE_DIRECTORY;\r
+ }\r
+\r
+\r
+ BufferFileName = (CHAR16 *)((CHAR8 *) Buffer + Size);\r
+ while (*RealFileName)\r
+ *BufferFileName++ = *RealFileName++;\r
+ *BufferFileName = 0;\r
+\r
+ *BufferSize = ResultSize;\r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemRead (\r
+ IN EFI_FILE *This,\r
+ IN OUT UINTN *BufferSize,\r
+ OUT VOID *Buffer\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Read data from a file.\r
+\r
+Arguments:\r
+\r
+ This - Pointer to a returned open file handle.\r
+\r
+ BufferSize - On input, the size of the Buffer. On output, the number of bytes stored in the Buffer.\r
+\r
+ Buffer - Pointer to the first byte of the read Buffer.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The data was read.\r
+\r
+ EFI_NO_MEDIA - The device has no media.\r
+\r
+ EFI_DEVICE_ERROR - The device reported an error.\r
+\r
+ EFI_VOLUME_CORRUPTED - The file system structures are corrupted.\r
+\r
+ EFI_BUFFER_TOO_SMALL - The supplied buffer size was too small to store the current directory entry.\r
+ *BufferSize has been updated with the size needed to complete the request.\r
+\r
+--*/\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ UNIX_EFI_FILE_PRIVATE *PrivateFile;\r
+ EFI_STATUS Status;\r
+ INTN Res;\r
+ UINTN Size;\r
+ UINTN NameSize;\r
+ UINTN ResultSize;\r
+ CHAR8 *FullFileName;\r
+ EFI_TPL OldTpl;\r
+\r
+ if (This == NULL || BufferSize == NULL || Buffer == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
+ \r
+ PrivateFile = UNIX_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
+\r
+ if (!PrivateFile->IsDirectoryPath) {\r
+\r
+ if (PrivateFile->fd < 0) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Done;\r
+ }\r
+\r
+ Res = PrivateFile->UnixThunk->Read (\r
+ PrivateFile->fd,\r
+ Buffer,\r
+ *BufferSize);\r
+ if (Res < 0) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Done;\r
+ }\r
+ *BufferSize = Res;\r
+ Status = EFI_SUCCESS;\r
+ goto Done;\r
+ }\r
+\r
+ //\r
+ // Read on a directory.\r
+ //\r
+ if (PrivateFile->Dir == NULL) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Done;\r
+ }\r
+\r
+ if (PrivateFile->Dirent == NULL) {\r
+ PrivateFile->Dirent = PrivateFile->UnixThunk->ReadDir (PrivateFile->Dir);\r
+ if (PrivateFile->Dirent == NULL) {\r
+ *BufferSize = 0;\r
+ Status = EFI_SUCCESS;\r
+ goto Done;\r
+ }\r
+ }\r
+\r
+ Size = SIZE_OF_EFI_FILE_INFO;\r
+ NameSize = AsciiStrLen (PrivateFile->Dirent->d_name) + 1;\r
+ ResultSize = Size + 2 * NameSize;\r
+\r
+ if (*BufferSize < ResultSize) {\r
+ *BufferSize = ResultSize;\r
+ Status = EFI_BUFFER_TOO_SMALL;\r
+ goto Done;\r
+ }\r
+ Status = EFI_SUCCESS;\r
+\r
+ *BufferSize = ResultSize;\r
+\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ AsciiStrLen(PrivateFile->FileName) + 1 + NameSize,\r
+ (VOID **)&FullFileName\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+ \r
+ AsciiStrCpy(FullFileName, PrivateFile->FileName);\r
+ AsciiStrCat(FullFileName, "/");\r
+ AsciiStrCat(FullFileName, PrivateFile->Dirent->d_name);\r
+ Status = UnixSimpleFileSystemFileInfo (PrivateFile,\r
+ FullFileName,\r
+ BufferSize,\r
+ Buffer);\r
+ gBS->FreePool (FullFileName);\r
+\r
+ PrivateFile->Dirent = NULL;\r
+\r
+Done:\r
+ gBS->RestoreTPL (OldTpl);\r
+\r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemWrite (\r
+ IN EFI_FILE *This,\r
+ IN OUT UINTN *BufferSize,\r
+ IN VOID *Buffer\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Write data to a file.\r
+\r
+Arguments:\r
+\r
+ This - Pointer to an opened file handle.\r
+\r
+ BufferSize - On input, the number of bytes in the Buffer to write to the file. On output, the number of bytes\r
+ of data written to the file.\r
+\r
+ Buffer - Pointer to the first by of data in the buffer to write to the file.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The data was written to the file.\r
+\r
+ EFI_UNSUPPORTED - Writes to an open directory are not supported.\r
+\r
+ EFI_NO_MEDIA - The device has no media.\r
+\r
+ EFI_DEVICE_ERROR - The device reported an error.\r
+\r
+ EFI_VOLUME_CORRUPTED - The file system structures are corrupt.\r
+\r
+ EFI_WRITE_PROTECTED - The file, directory, volume, or device is write protected.\r
+\r
+ EFI_ACCESS_DENIED - The file was opened read-only.\r
+\r
+ EFI_VOLUME_FULL - The volume is full.\r
+\r
+--*/\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ UNIX_EFI_FILE_PRIVATE *PrivateFile;\r
+ UINTN Res;\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 (TPL_CALLBACK);\r
+\r
+ PrivateFile = UNIX_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
+\r
+ if (PrivateFile->fd < 0) {\r
+ return EFI_DEVICE_ERROR;\r
+ }\r
+\r
+ if (PrivateFile->IsDirectoryPath) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
+\r
+ if (PrivateFile->IsOpenedByRead) {\r
+ return EFI_ACCESS_DENIED;\r
+ }\r
+\r
+ Res = PrivateFile->UnixThunk->Write (\r
+ PrivateFile->fd,\r
+ Buffer,\r
+ *BufferSize);\r
+ if (Res == (UINTN)-1) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Done;\r
+ }\r
+ *BufferSize = Res;\r
+ Status = EFI_SUCCESS;\r
+\r
+Done:\r
+ gBS->RestoreTPL (OldTpl);\r
+ return Status;\r
+\r
+ //\r
+ // bugbug: need to access unix error reporting\r
+ //\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemSetPosition (\r
+ IN EFI_FILE *This,\r
+ IN UINT64 Position\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Set a file's current position.\r
+\r
+Arguments:\r
+\r
+ This - Pointer to an opened file handle.\r
+\r
+ Position - The byte position from the start of the file to set.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The file position has been changed.\r
+\r
+ EFI_UNSUPPORTED - The seek request for non-zero is not supported for directories.\r
+\r
+--*/\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ EFI_STATUS Status;\r
+ UNIX_EFI_FILE_PRIVATE *PrivateFile;\r
+ UINT64 Pos;\r
+ EFI_TPL OldTpl;\r
+\r
+ if (This == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
+ \r
+ PrivateFile = UNIX_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
+\r
+ if (PrivateFile->IsDirectoryPath) {\r
+ if (Position != 0) {\r
+ Status = EFI_UNSUPPORTED;\r
+ goto Done;\r
+ }\r
+\r
+ if (PrivateFile->Dir == NULL) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Done;\r
+ }\r
+ PrivateFile->UnixThunk->RewindDir (PrivateFile->Dir);\r
+ Status = EFI_SUCCESS;\r
+ goto Done;\r
+ } else {\r
+ if (Position == (UINT64) -1) {\r
+ Pos = PrivateFile->UnixThunk->Lseek (PrivateFile->fd, 0, SEEK_END);\r
+ } else {\r
+ Pos = PrivateFile->UnixThunk->Lseek (PrivateFile->fd, Position, SEEK_SET);\r
+ }\r
+ Status = (Pos == (UINT64) -1) ? EFI_DEVICE_ERROR : EFI_SUCCESS;\r
+ }\r
+\r
+Done:\r
+ gBS->RestoreTPL (OldTpl);\r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemGetPosition (\r
+ IN EFI_FILE *This,\r
+ OUT UINT64 *Position\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Get a file's current position.\r
+\r
+Arguments:\r
+\r
+ This - Pointer to an opened file handle.\r
+\r
+ Position - Pointer to storage for the current position.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The file position has been reported.\r
+\r
+ EFI_UNSUPPORTED - Not valid for directories.\r
+\r
+--*/\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ EFI_STATUS Status;\r
+ UNIX_EFI_FILE_PRIVATE *PrivateFile;\r
+ EFI_TPL OldTpl;\r
+\r
+ if (This == NULL || Position == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
+ \r
+ PrivateFile = UNIX_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
+\r
+ if (PrivateFile->IsDirectoryPath) {\r
+ Status = EFI_UNSUPPORTED;\r
+ } else {\r
+ *Position = PrivateFile->UnixThunk->Lseek (PrivateFile->fd, 0, SEEK_CUR);\r
+ Status = (*Position == (UINT64) -1) ? EFI_DEVICE_ERROR : EFI_SUCCESS;\r
+ }\r
+\r
+ gBS->RestoreTPL (OldTpl);\r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemGetInfo (\r
+ IN EFI_FILE *This,\r
+ IN EFI_GUID *InformationType,\r
+ IN OUT UINTN *BufferSize,\r
+ OUT VOID *Buffer\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Return information about a file or volume.\r
+\r
+Arguments:\r
+\r
+ This - Pointer to an opened file handle.\r
+\r
+ InformationType - GUID describing the type of information to be returned.\r
+\r
+ BufferSize - On input, the size of the information buffer. On output, the number of bytes written to the\r
+ information buffer.\r
+\r
+ Buffer - Pointer to the first byte of the information buffer.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The requested information has been written into the buffer.\r
+\r
+ EFI_UNSUPPORTED - The InformationType is not known.\r
+\r
+ EFI_NO_MEDIA - The device has no media.\r
+\r
+ EFI_DEVICE_ERROR - The device reported an error.\r
+\r
+ EFI_VOLUME_CORRUPTED - The file system structures are corrupt.\r
+\r
+ EFI_BUFFER_TOO_SMALL - The buffer size was too small to contain the requested information. The buffer size has\r
+ been updated with the size needed to complete the requested operation.\r
+\r
+--*/\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ EFI_STATUS Status;\r
+ UNIX_EFI_FILE_PRIVATE *PrivateFile;\r
+ EFI_FILE_SYSTEM_INFO *FileSystemInfoBuffer;\r
+ INTN UnixStatus;\r
+ UNIX_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot;\r
+ struct statfs buf;\r
+ EFI_TPL OldTpl;\r
+\r
+ if (This == NULL || InformationType == NULL || BufferSize == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
+ \r
+ PrivateFile = UNIX_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
+ PrivateRoot = UNIX_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem);\r
+\r
+ Status = EFI_UNSUPPORTED;\r
+\r
+ if (CompareGuid (InformationType, &gEfiFileInfoGuid)) {\r
+ Status = UnixSimpleFileSystemFileInfo (PrivateFile, NULL, BufferSize, Buffer);\r
+ } else 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
+ Status = EFI_BUFFER_TOO_SMALL;\r
+ goto Done;\r
+ }\r
+\r
+ UnixStatus = PrivateFile->UnixThunk->StatFs (PrivateFile->FileName, &buf);\r
+ if (UnixStatus < 0) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Done;\r
+ }\r
+\r
+ FileSystemInfoBuffer = (EFI_FILE_SYSTEM_INFO *) Buffer;\r
+ FileSystemInfoBuffer->Size = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel);\r
+ FileSystemInfoBuffer->ReadOnly = FALSE;\r
+\r
+ //\r
+ // Succeeded\r
+ //\r
+ FileSystemInfoBuffer->VolumeSize = MultU64x32 (buf.f_blocks, buf.f_bsize);\r
+ FileSystemInfoBuffer->FreeSpace = MultU64x32 (buf.f_bavail, buf.f_bsize);\r
+ FileSystemInfoBuffer->BlockSize = buf.f_bsize;\r
+\r
+\r
+ StrCpy ((CHAR16 *) FileSystemInfoBuffer->VolumeLabel, PrivateRoot->VolumeLabel);\r
+ *BufferSize = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel);\r
+ Status = EFI_SUCCESS;\r
+ } else if (CompareGuid (InformationType, &gEfiFileSystemVolumeLabelInfoIdGuid)) {\r
+ if (*BufferSize < StrSize (PrivateRoot->VolumeLabel)) {\r
+ *BufferSize = StrSize (PrivateRoot->VolumeLabel);\r
+ Status = EFI_BUFFER_TOO_SMALL;\r
+ goto Done;\r
+ }\r
+\r
+ StrCpy ((CHAR16 *) Buffer, PrivateRoot->VolumeLabel);\r
+ *BufferSize = StrSize (PrivateRoot->VolumeLabel);\r
+ Status = EFI_SUCCESS;\r
+ }\r
+\r
+Done:\r
+ gBS->RestoreTPL (OldTpl);\r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemSetInfo (\r
+ IN EFI_FILE *This,\r
+ IN EFI_GUID *InformationType,\r
+ IN UINTN BufferSize,\r
+ IN VOID *Buffer\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Set information about a file or volume.\r
+\r
+Arguments:\r
+\r
+ This - Pointer to an opened file handle.\r
+\r
+ InformationType - GUID identifying the type of information to set.\r
+\r
+ BufferSize - Number of bytes of data in the information buffer.\r
+\r
+ Buffer - Pointer to the first byte of data in the information buffer.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The file or volume information has been updated.\r
+\r
+ EFI_UNSUPPORTED - The information identifier is not recognised.\r
+\r
+ EFI_NO_MEDIA - The device has no media.\r
+\r
+ EFI_DEVICE_ERROR - The device reported an error.\r
+\r
+ EFI_VOLUME_CORRUPTED - The file system structures are corrupt.\r
+\r
+ EFI_WRITE_PROTECTED - The file, directory, volume, or device is write protected.\r
+\r
+ EFI_ACCESS_DENIED - The file was opened read-only.\r
+\r
+ EFI_VOLUME_FULL - The volume is full.\r
+\r
+ EFI_BAD_BUFFER_SIZE - The buffer size is smaller than the type indicated by InformationType.\r
+\r
+--*/\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ UNIX_SIMPLE_FILE_SYSTEM_PRIVATE *PrivateRoot;\r
+ UNIX_EFI_FILE_PRIVATE *PrivateFile;\r
+ EFI_FILE_INFO *OldFileInfo;\r
+ EFI_FILE_INFO *NewFileInfo;\r
+ EFI_STATUS Status;\r
+ UINTN OldInfoSize;\r
+ EFI_TPL OldTpl;\r
+ mode_t NewAttr;\r
+ struct stat OldAttr;\r
+ CHAR8 *OldFileName;\r
+ CHAR8 *NewFileName;\r
+ CHAR8 *CharPointer;\r
+ BOOLEAN AttrChangeFlag;\r
+ BOOLEAN NameChangeFlag;\r
+ BOOLEAN SizeChangeFlag;\r
+ BOOLEAN TimeChangeFlag;\r
+ struct tm NewLastAccessSystemTime;\r
+ struct tm NewLastWriteSystemTime;\r
+ EFI_FILE_SYSTEM_INFO *NewFileSystemInfo;\r
+ CHAR8 *AsciiFilePtr;\r
+ CHAR16 *UnicodeFilePtr;\r
+ INTN UnixStatus;\r
+\r
+ //\r
+ // Check for invalid parameters.\r
+ //\r
+ if (This == NULL || InformationType == NULL || BufferSize == 0 || Buffer == NULL) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
+ \r
+ //\r
+ // Initialise locals.\r
+ //\r
+ PrivateFile = UNIX_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
+ PrivateRoot = UNIX_SIMPLE_FILE_SYSTEM_PRIVATE_DATA_FROM_THIS (PrivateFile->SimpleFileSystem);\r
+\r
+ Status = EFI_UNSUPPORTED;\r
+ OldFileInfo = NewFileInfo = NULL;\r
+ OldFileName = NewFileName = NULL;\r
+ AttrChangeFlag = NameChangeFlag = SizeChangeFlag = TimeChangeFlag = FALSE;\r
+\r
+ //\r
+ // Set file system information.\r
+ //\r
+ if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid)) {\r
+ if (BufferSize < SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (PrivateRoot->VolumeLabel)) {\r
+ Status = EFI_BAD_BUFFER_SIZE;\r
+ goto Done;\r
+ }\r
+\r
+ NewFileSystemInfo = (EFI_FILE_SYSTEM_INFO *) Buffer;\r
+\r
+ gBS->FreePool (PrivateRoot->VolumeLabel);\r
+\r
+ PrivateRoot->VolumeLabel = NULL;\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ StrSize (NewFileSystemInfo->VolumeLabel),\r
+ (VOID **)&PrivateRoot->VolumeLabel\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ StrCpy (PrivateRoot->VolumeLabel, NewFileSystemInfo->VolumeLabel);\r
+\r
+ Status = EFI_SUCCESS;\r
+ goto Done;\r
+ }\r
+\r
+ //\r
+ // Set volume label information.\r
+ //\r
+ if (CompareGuid (InformationType, &gEfiFileSystemVolumeLabelInfoIdGuid)) {\r
+ if (BufferSize < StrSize (PrivateRoot->VolumeLabel)) {\r
+ Status = EFI_BAD_BUFFER_SIZE;\r
+ goto Done;\r
+ }\r
+\r
+ StrCpy (PrivateRoot->VolumeLabel, (CHAR16 *) Buffer);\r
+\r
+ Status = EFI_SUCCESS;\r
+ goto Done;\r
+ }\r
+\r
+ if (!CompareGuid (InformationType, &gEfiFileInfoGuid)) {\r
+ Status = EFI_UNSUPPORTED;\r
+ goto Done;\r
+ }\r
+\r
+ if (BufferSize < SIZE_OF_EFI_FILE_INFO) {\r
+ Status = EFI_BAD_BUFFER_SIZE;\r
+ goto Done;\r
+ }\r
+\r
+ //\r
+ // Set file/directory information.\r
+ //\r
+\r
+ //\r
+ // Check for invalid set file information parameters.\r
+ //\r
+ NewFileInfo = (EFI_FILE_INFO *) Buffer;\r
+\r
+ if (NewFileInfo->Size <= sizeof (EFI_FILE_INFO) ||\r
+ (NewFileInfo->Attribute &~(EFI_FILE_VALID_ATTR)) ||\r
+ (sizeof (UINTN) == 4 && NewFileInfo->Size > 0xFFFFFFFF)\r
+ ) {\r
+ Status = EFI_INVALID_PARAMETER;\r
+ goto Done;\r
+ }\r
+\r
+ //\r
+ // bugbug: - This is not safe. We need something like EfiStrMaxSize()\r
+ // that would have an additional parameter that would be the size\r
+ // of the string array just in case there are no NULL characters in\r
+ // the string array.\r
+ //\r
+ //\r
+ // Get current file information so we can determine what kind\r
+ // of change request this is.\r
+ //\r
+ OldInfoSize = 0;\r
+ Status = UnixSimpleFileSystemFileInfo (PrivateFile, NULL, &OldInfoSize, NULL);\r
+\r
+ if (Status != EFI_BUFFER_TOO_SMALL) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Done;\r
+ }\r
+\r
+ Status = gBS->AllocatePool (EfiBootServicesData, OldInfoSize,\r
+ (VOID **)&OldFileInfo);\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ Status = UnixSimpleFileSystemFileInfo (PrivateFile, NULL, &OldInfoSize, OldFileInfo);\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ AsciiStrSize (PrivateFile->FileName),\r
+ (VOID **)&OldFileName\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ AsciiStrCpy (OldFileName, PrivateFile->FileName);\r
+\r
+ //\r
+ // Make full pathname from new filename and rootpath.\r
+ //\r
+ if (NewFileInfo->FileName[0] == '\\') {\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ AsciiStrLen (PrivateRoot->FilePath) + 1 + StrLen (NewFileInfo->FileName) + 1,\r
+ (VOID **)&NewFileName\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ AsciiStrCpy (NewFileName, PrivateRoot->FilePath);\r
+ AsciiFilePtr = NewFileName + AsciiStrLen(NewFileName);\r
+ UnicodeFilePtr = NewFileInfo->FileName + 1;\r
+ *AsciiFilePtr++ ='/';\r
+ } else {\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ AsciiStrLen (PrivateFile->FileName) + 1 + StrLen (NewFileInfo->FileName) + 1,\r
+ (VOID **)&NewFileName\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ AsciiStrCpy (NewFileName, PrivateRoot->FilePath);\r
+ AsciiFilePtr = NewFileName + AsciiStrLen(NewFileName);\r
+ while (AsciiFilePtr > NewFileName && AsciiFilePtr[-1] != '/') {\r
+ AsciiFilePtr--;\r
+ }\r
+ UnicodeFilePtr = NewFileInfo->FileName;\r
+ }\r
+ // Convert to ascii.\r
+ while (*UnicodeFilePtr) {\r
+ *AsciiFilePtr++ = *UnicodeFilePtr++;\r
+ }\r
+ *AsciiFilePtr = 0;\r
+\r
+\r
+ //\r
+ // Is there an attribute change request?\r
+ //\r
+ if (NewFileInfo->Attribute != OldFileInfo->Attribute) {\r
+ if ((NewFileInfo->Attribute & EFI_FILE_DIRECTORY) != (OldFileInfo->Attribute & EFI_FILE_DIRECTORY)) {\r
+ Status = EFI_INVALID_PARAMETER;\r
+ goto Done;\r
+ }\r
+\r
+ AttrChangeFlag = TRUE;\r
+ }\r
+\r
+ //\r
+ // Is there a name change request?\r
+ // bugbug: - Need EfiStrCaseCmp()\r
+ //\r
+ if (StrCmp (NewFileInfo->FileName, OldFileInfo->FileName)) {\r
+ NameChangeFlag = TRUE;\r
+ }\r
+\r
+ //\r
+ // Is there a size change request?\r
+ //\r
+ if (NewFileInfo->FileSize != OldFileInfo->FileSize) {\r
+ SizeChangeFlag = TRUE;\r
+ }\r
+\r
+ //\r
+ // Is there a time stamp change request?\r
+ //\r
+ if (!IsZero (&NewFileInfo->CreateTime, sizeof (EFI_TIME)) &&\r
+ CompareMem (&NewFileInfo->CreateTime, &OldFileInfo->CreateTime, sizeof (EFI_TIME))\r
+ ) {\r
+ TimeChangeFlag = TRUE;\r
+ } else if (!IsZero (&NewFileInfo->LastAccessTime, sizeof (EFI_TIME)) &&\r
+ CompareMem (&NewFileInfo->LastAccessTime, &OldFileInfo->LastAccessTime, sizeof (EFI_TIME))\r
+ ) {\r
+ TimeChangeFlag = TRUE;\r
+ } else if (!IsZero (&NewFileInfo->ModificationTime, sizeof (EFI_TIME)) &&\r
+ CompareMem (&NewFileInfo->ModificationTime, &OldFileInfo->ModificationTime, sizeof (EFI_TIME))\r
+ ) {\r
+ TimeChangeFlag = TRUE;\r
+ }\r
+\r
+ //\r
+ // All done if there are no change requests being made.\r
+ //\r
+ if (!(AttrChangeFlag || NameChangeFlag || SizeChangeFlag || TimeChangeFlag)) {\r
+ Status = EFI_SUCCESS;\r
+ goto Done;\r
+ }\r
+\r
+ //\r
+ // Set file or directory information.\r
+ //\r
+ if (PrivateFile->UnixThunk->Stat (OldFileName, &OldAttr) != 0) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Done;\r
+ }\r
+\r
+ //\r
+ // Name change.\r
+ //\r
+ if (NameChangeFlag) {\r
+ //\r
+ // Close the handles first\r
+ //\r
+ if (PrivateFile->IsOpenedByRead) {\r
+ Status = EFI_ACCESS_DENIED;\r
+ goto Done;\r
+ }\r
+\r
+ for (CharPointer = NewFileName; *CharPointer != 0 && *CharPointer != L'/'; CharPointer++) {\r
+ }\r
+\r
+ if (*CharPointer != 0) {\r
+ Status = EFI_ACCESS_DENIED;\r
+ goto Done;\r
+ }\r
+\r
+ UnixStatus = PrivateFile->UnixThunk->Rename (OldFileName, NewFileName);\r
+\r
+ if (UnixStatus == 0) {\r
+ //\r
+ // modify file name\r
+ //\r
+ gBS->FreePool (PrivateFile->FileName);\r
+\r
+ Status = gBS->AllocatePool (\r
+ EfiBootServicesData,\r
+ AsciiStrSize (NewFileName),\r
+ (VOID **)&PrivateFile->FileName\r
+ );\r
+\r
+ if (EFI_ERROR (Status)) {\r
+ goto Done;\r
+ }\r
+\r
+ AsciiStrCpy (PrivateFile->FileName, NewFileName);\r
+ } else {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Done;\r
+ }\r
+ }\r
+\r
+ //\r
+ // Size change\r
+ //\r
+ if (SizeChangeFlag) {\r
+ if (PrivateFile->IsDirectoryPath) {\r
+ Status = EFI_UNSUPPORTED;\r
+ goto Done;\r
+ }\r
+\r
+ if (PrivateFile->IsOpenedByRead || OldFileInfo->Attribute & EFI_FILE_READ_ONLY) {\r
+ Status = EFI_ACCESS_DENIED;\r
+ goto Done;\r
+ }\r
+\r
+ if (PrivateFile->UnixThunk->FTruncate (PrivateFile->fd, NewFileInfo->FileSize) != 0) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Done;\r
+ }\r
+\r
+ }\r
+\r
+ //\r
+ // Time change\r
+ //\r
+ if (TimeChangeFlag) {\r
+ struct utimbuf utime;\r
+\r
+ NewLastAccessSystemTime.tm_year = NewFileInfo->LastAccessTime.Year;\r
+ NewLastAccessSystemTime.tm_mon = NewFileInfo->LastAccessTime.Month;\r
+ NewLastAccessSystemTime.tm_mday = NewFileInfo->LastAccessTime.Day;\r
+ NewLastAccessSystemTime.tm_hour = NewFileInfo->LastAccessTime.Hour;\r
+ NewLastAccessSystemTime.tm_min = NewFileInfo->LastAccessTime.Minute;\r
+ NewLastAccessSystemTime.tm_sec = NewFileInfo->LastAccessTime.Second;\r
+ NewLastAccessSystemTime.tm_isdst = 0;\r
+\r
+ utime.actime = PrivateFile->UnixThunk->MkTime (&NewLastAccessSystemTime);\r
+\r
+ NewLastWriteSystemTime.tm_year = NewFileInfo->ModificationTime.Year;\r
+ NewLastWriteSystemTime.tm_mon = NewFileInfo->ModificationTime.Month;\r
+ NewLastWriteSystemTime.tm_mday = NewFileInfo->ModificationTime.Day;\r
+ NewLastWriteSystemTime.tm_hour = NewFileInfo->ModificationTime.Hour;\r
+ NewLastWriteSystemTime.tm_min = NewFileInfo->ModificationTime.Minute;\r
+ NewLastWriteSystemTime.tm_sec = NewFileInfo->ModificationTime.Second;\r
+ NewLastWriteSystemTime.tm_isdst = 0;\r
+\r
+ utime.modtime = PrivateFile->UnixThunk->MkTime (&NewLastWriteSystemTime);\r
+\r
+ if (utime.actime == (time_t)-1 || utime.modtime == (time_t)-1) {\r
+ goto Done;\r
+ }\r
+\r
+ if (PrivateFile->UnixThunk->UTime (PrivateFile->FileName, &utime) == -1) {\r
+ goto Done;\r
+ }\r
+ }\r
+\r
+ //\r
+ // No matter about AttrChangeFlag, Attribute must be set.\r
+ // Because operation before may cause attribute change.\r
+ //\r
+ NewAttr = OldAttr.st_mode;\r
+\r
+ if (NewFileInfo->Attribute & EFI_FILE_READ_ONLY) {\r
+ NewAttr &= ~(S_IRUSR | S_IRGRP | S_IROTH);\r
+ } else {\r
+ NewAttr |= S_IRUSR;\r
+ }\r
+\r
+ UnixStatus = PrivateFile->UnixThunk->Chmod (NewFileName, NewAttr);\r
+\r
+ if (UnixStatus != 0) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ }\r
+\r
+Done:\r
+ if (OldFileInfo != NULL) {\r
+ gBS->FreePool (OldFileInfo);\r
+ }\r
+\r
+ if (OldFileName != NULL) {\r
+ gBS->FreePool (OldFileName);\r
+ }\r
+\r
+ if (NewFileName != NULL) {\r
+ gBS->FreePool (NewFileName);\r
+ }\r
+\r
+ gBS->RestoreTPL (OldTpl);\r
+ \r
+ return Status;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+UnixSimpleFileSystemFlush (\r
+ IN EFI_FILE *This\r
+ )\r
+/*++\r
+\r
+Routine Description:\r
+\r
+ Flush all modified data to the media.\r
+\r
+Arguments:\r
+\r
+ This - Pointer to an opened file handle.\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - The data has been flushed.\r
+\r
+ EFI_NO_MEDIA - The device has no media.\r
+\r
+ EFI_DEVICE_ERROR - The device reported an error.\r
+\r
+ EFI_VOLUME_CORRUPTED - The file system structures have been corrupted.\r
+\r
+ EFI_WRITE_PROTECTED - The file, directory, volume, or device is write protected.\r
+\r
+ EFI_ACCESS_DENIED - The file was opened read-only.\r
+\r
+ EFI_VOLUME_FULL - The volume is full.\r
+\r
+--*/\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ UNIX_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
+ Status = EFI_SUCCESS;\r
+ OldTpl = gBS->RaiseTPL (TPL_CALLBACK);\r
+ \r
+ PrivateFile = UNIX_EFI_FILE_PRIVATE_DATA_FROM_THIS (This);\r
+\r
+\r
+ if (PrivateFile->IsDirectoryPath) {\r
+ goto Done;\r
+ }\r
+\r
+ if (PrivateFile->IsOpenedByRead) {\r
+ Status = EFI_ACCESS_DENIED;\r
+ goto Done;\r
+ }\r
+\r
+ if (PrivateFile->fd < 0) {\r
+ Status = EFI_DEVICE_ERROR;\r
+ goto Done;\r
+ }\r
+\r
+ PrivateFile->UnixThunk->FSync (PrivateFile->fd) == 0 ? EFI_SUCCESS : EFI_DEVICE_ERROR;\r
+\r
+Done:\r
+ gBS->RestoreTPL (OldTpl);\r
+\r
+ return Status;\r
+\r
+ //\r
+ // bugbug: - Use Unix error reporting.\r
+ //\r
+}\r
+\r
+\r