diff options
author | Michael Brown <mcb30@ipxe.org> | 2013-03-13 22:36:32 +0000 |
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committer | Michael Brown <mcb30@ipxe.org> | 2013-03-13 22:42:16 +0000 |
commit | fc87adb46c1395b09302085e9d15fcd8ab3c31fe (patch) | |
tree | 35043eb05fce1aca8e26bc72aecb666779c45d10 /src/include/ipxe/efi | |
parent | db014f3c23be19e11964d48f2bcb25b54a9bf722 (diff) | |
download | ipxe-fc87adb46c1395b09302085e9d15fcd8ab3c31fe.zip ipxe-fc87adb46c1395b09302085e9d15fcd8ab3c31fe.tar.gz ipxe-fc87adb46c1395b09302085e9d15fcd8ab3c31fe.tar.bz2 |
[efi] Expose downloaded images via EFI_SIMPLE_FILE_SYSTEM_PROTOCOL
Expose iPXE's images as a UEFI file system, allowing the booted image
to access all images downloaded by iPXE.
This functionality is complementary to the custom iPXE download
protocol. The iPXE download protocol allows a booted image to utilise
iPXE to download arbitrary URIs, but requires the booted image to
specifically support the custom iPXE download protocol. The new
functionality limits the booted image to accessing only files that
were already downloaded by iPXE (e.g. as part of a script), but can
work with any generic UEFI image (e.g. the UEFI shell). Both
protocols are provided simultaneously, and are attached to the SNP
device handle.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/include/ipxe/efi')
-rw-r--r-- | src/include/ipxe/efi/Guid/FileInfo.h | 73 | ||||
-rw-r--r-- | src/include/ipxe/efi/Guid/FileSystemInfo.h | 65 | ||||
-rw-r--r-- | src/include/ipxe/efi/Protocol/BlockIo.h | 243 | ||||
-rw-r--r-- | src/include/ipxe/efi/Protocol/SimpleFileSystem.h | 403 | ||||
-rw-r--r-- | src/include/ipxe/efi/efi.h | 2 | ||||
-rw-r--r-- | src/include/ipxe/efi/efi_download.h (renamed from src/include/ipxe/efi/ipxe_download.h) | 3 | ||||
-rw-r--r-- | src/include/ipxe/efi/efi_file.h | 13 |
7 files changed, 800 insertions, 2 deletions
diff --git a/src/include/ipxe/efi/Guid/FileInfo.h b/src/include/ipxe/efi/Guid/FileInfo.h new file mode 100644 index 0000000..21fd389 --- /dev/null +++ b/src/include/ipxe/efi/Guid/FileInfo.h @@ -0,0 +1,73 @@ +/** @file + Provides a GUID and a data structure that can be used with EFI_FILE_PROTOCOL.SetInfo() + and EFI_FILE_PROTOCOL.GetInfo() to set or get generic file information. + This GUID is defined in UEFI specification. + +Copyright (c) 2006 - 2010, 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 that accompanies this distribution. +The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php. + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#ifndef __FILE_INFO_H__ +#define __FILE_INFO_H__ + +FILE_LICENCE ( BSD3 ); + +#define EFI_FILE_INFO_ID \ + { \ + 0x9576e92, 0x6d3f, 0x11d2, {0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \ + } + +typedef struct { + /// + /// The size of the EFI_FILE_INFO structure, including the Null-terminated FileName string. + /// + UINT64 Size; + /// + /// The size of the file in bytes. + /// + UINT64 FileSize; + /// + /// PhysicalSize The amount of physical space the file consumes on the file system volume. + /// + UINT64 PhysicalSize; + /// + /// The time the file was created. + /// + EFI_TIME CreateTime; + /// + /// The time when the file was last accessed. + /// + EFI_TIME LastAccessTime; + /// + /// The time when the file's contents were last modified. + /// + EFI_TIME ModificationTime; + /// + /// The attribute bits for the file. + /// + UINT64 Attribute; + /// + /// The Null-terminated name of the file. + /// + CHAR16 FileName[1]; +} EFI_FILE_INFO; + +/// +/// The FileName field of the EFI_FILE_INFO data structure is variable length. +/// Whenever code needs to know the size of the EFI_FILE_INFO data structure, it needs to +/// be the size of the data structure without the FileName field. The following macro +/// computes this size correctly no matter how big the FileName array is declared. +/// This is required to make the EFI_FILE_INFO data structure ANSI compilant. +/// +#define SIZE_OF_EFI_FILE_INFO OFFSET_OF (EFI_FILE_INFO, FileName) + +extern EFI_GUID gEfiFileInfoGuid; + +#endif diff --git a/src/include/ipxe/efi/Guid/FileSystemInfo.h b/src/include/ipxe/efi/Guid/FileSystemInfo.h new file mode 100644 index 0000000..504b793 --- /dev/null +++ b/src/include/ipxe/efi/Guid/FileSystemInfo.h @@ -0,0 +1,65 @@ +/** @file + Provides a GUID and a data structure that can be used with EFI_FILE_PROTOCOL.GetInfo() + or EFI_FILE_PROTOCOL.SetInfo() to get or set information about the system's volume. + This GUID is defined in UEFI specification. + +Copyright (c) 2006 - 2010, 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 that accompanies this distribution. +The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php. + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#ifndef __FILE_SYSTEM_INFO_H__ +#define __FILE_SYSTEM_INFO_H__ + +FILE_LICENCE ( BSD3 ); + +#define EFI_FILE_SYSTEM_INFO_ID \ + { \ + 0x9576e93, 0x6d3f, 0x11d2, {0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \ + } + +typedef struct { + /// + /// The size of the EFI_FILE_SYSTEM_INFO structure, including the Null-terminated VolumeLabel string. + /// + UINT64 Size; + /// + /// TRUE if the volume only supports read access. + /// + BOOLEAN ReadOnly; + /// + /// The number of bytes managed by the file system. + /// + UINT64 VolumeSize; + /// + /// The number of available bytes for use by the file system. + /// + UINT64 FreeSpace; + /// + /// The nominal block size by which files are typically grown. + /// + UINT32 BlockSize; + /// + /// The Null-terminated string that is the volume's label. + /// + CHAR16 VolumeLabel[1]; +} EFI_FILE_SYSTEM_INFO; + +/// +/// The VolumeLabel field of the EFI_FILE_SYSTEM_INFO data structure is variable length. +/// Whenever code needs to know the size of the EFI_FILE_SYSTEM_INFO data structure, it needs +/// to be the size of the data structure without the VolumeLable field. The following macro +/// computes this size correctly no matter how big the VolumeLable array is declared. +/// This is required to make the EFI_FILE_SYSTEM_INFO data structure ANSI compilant. +/// +#define SIZE_OF_EFI_FILE_SYSTEM_INFO OFFSET_OF (EFI_FILE_SYSTEM_INFO, VolumeLabel) + +extern EFI_GUID gEfiFileSystemInfoGuid; + +#endif diff --git a/src/include/ipxe/efi/Protocol/BlockIo.h b/src/include/ipxe/efi/Protocol/BlockIo.h new file mode 100644 index 0000000..f45154b --- /dev/null +++ b/src/include/ipxe/efi/Protocol/BlockIo.h @@ -0,0 +1,243 @@ +/** @file + Block IO protocol as defined in the UEFI 2.0 specification. + + The Block IO protocol is used to abstract block devices like hard drives, + DVD-ROMs and floppy drives. + + Copyright (c) 2006 - 2011, 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 + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#ifndef __BLOCK_IO_H__ +#define __BLOCK_IO_H__ + +FILE_LICENCE ( BSD3 ); + +#define EFI_BLOCK_IO_PROTOCOL_GUID \ + { \ + 0x964e5b21, 0x6459, 0x11d2, {0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \ + } + +typedef struct _EFI_BLOCK_IO_PROTOCOL EFI_BLOCK_IO_PROTOCOL; + +/// +/// Protocol GUID name defined in EFI1.1. +/// +#define BLOCK_IO_PROTOCOL EFI_BLOCK_IO_PROTOCOL_GUID + +/// +/// Protocol defined in EFI1.1. +/// +typedef EFI_BLOCK_IO_PROTOCOL EFI_BLOCK_IO; + +/** + Reset the Block Device. + + @param This Indicates a pointer to the calling context. + @param ExtendedVerification Driver may perform diagnostics on reset. + + @retval EFI_SUCCESS The device was reset. + @retval EFI_DEVICE_ERROR The device is not functioning properly and could + not be reset. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_BLOCK_RESET)( + IN EFI_BLOCK_IO_PROTOCOL *This, + IN BOOLEAN ExtendedVerification + ); + +/** + Read BufferSize bytes from Lba into Buffer. + + @param This Indicates a pointer to the calling context. + @param MediaId Id of the media, changes every time the media is replaced. + @param Lba The starting Logical Block Address to read from + @param BufferSize Size of Buffer, must be a multiple of device block size. + @param Buffer A pointer to the destination buffer for the data. The caller is + responsible for either having implicit or explicit ownership of the buffer. + + @retval EFI_SUCCESS The data was read correctly from the device. + @retval EFI_DEVICE_ERROR The device reported an error while performing the read. + @retval EFI_NO_MEDIA There is no media in the device. + @retval EFI_MEDIA_CHANGED The MediaId does not matched the current device. + @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device. + @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid, + or the buffer is not on proper alignment. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_BLOCK_READ)( + IN EFI_BLOCK_IO_PROTOCOL *This, + IN UINT32 MediaId, + IN EFI_LBA Lba, + IN UINTN BufferSize, + OUT VOID *Buffer + ); + +/** + Write BufferSize bytes from Lba into Buffer. + + @param This Indicates a pointer to the calling context. + @param MediaId The media ID that the write request is for. + @param Lba The starting logical block address to be written. The caller is + responsible for writing to only legitimate locations. + @param BufferSize Size of Buffer, must be a multiple of device block size. + @param Buffer A pointer to the source buffer for the data. + + @retval EFI_SUCCESS The data was written correctly to the device. + @retval EFI_WRITE_PROTECTED The device can not be written to. + @retval EFI_DEVICE_ERROR The device reported an error while performing the write. + @retval EFI_NO_MEDIA There is no media in the device. + @retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device. + @retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device. + @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid, + or the buffer is not on proper alignment. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_BLOCK_WRITE)( + IN EFI_BLOCK_IO_PROTOCOL *This, + IN UINT32 MediaId, + IN EFI_LBA Lba, + IN UINTN BufferSize, + IN VOID *Buffer + ); + +/** + Flush the Block Device. + + @param This Indicates a pointer to the calling context. + + @retval EFI_SUCCESS All outstanding data was written to the device + @retval EFI_DEVICE_ERROR The device reported an error while writting back the data + @retval EFI_NO_MEDIA There is no media in the device. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_BLOCK_FLUSH)( + IN EFI_BLOCK_IO_PROTOCOL *This + ); + +/** + Block IO read only mode data and updated only via members of BlockIO +**/ +typedef struct { + /// + /// The curent media Id. If the media changes, this value is changed. + /// + UINT32 MediaId; + + /// + /// TRUE if the media is removable; otherwise, FALSE. + /// + BOOLEAN RemovableMedia; + + /// + /// TRUE if there is a media currently present in the device; + /// othersise, FALSE. THis field shows the media present status + /// as of the most recent ReadBlocks() or WriteBlocks() call. + /// + BOOLEAN MediaPresent; + + /// + /// TRUE if LBA 0 is the first block of a partition; otherwise + /// FALSE. For media with only one partition this would be TRUE. + /// + BOOLEAN LogicalPartition; + + /// + /// TRUE if the media is marked read-only otherwise, FALSE. + /// This field shows the read-only status as of the most recent WriteBlocks () call. + /// + BOOLEAN ReadOnly; + + /// + /// TRUE if the WriteBlock () function caches write data. + /// + BOOLEAN WriteCaching; + + /// + /// The intrinsic block size of the device. If the media changes, then + /// this field is updated. + /// + UINT32 BlockSize; + + /// + /// Supplies the alignment requirement for any buffer to read or write block(s). + /// + UINT32 IoAlign; + + /// + /// The last logical block address on the device. + /// If the media changes, then this field is updated. + /// + EFI_LBA LastBlock; + + /// + /// Only present if EFI_BLOCK_IO_PROTOCOL.Revision is greater than or equal to + /// EFI_BLOCK_IO_PROTOCOL_REVISION2. Returns the first LBA is aligned to + /// a physical block boundary. + /// + EFI_LBA LowestAlignedLba; + + /// + /// Only present if EFI_BLOCK_IO_PROTOCOL.Revision is greater than or equal to + /// EFI_BLOCK_IO_PROTOCOL_REVISION2. Returns the number of logical blocks + /// per physical block. + /// + UINT32 LogicalBlocksPerPhysicalBlock; + + /// + /// Only present if EFI_BLOCK_IO_PROTOCOL.Revision is greater than or equal to + /// EFI_BLOCK_IO_PROTOCOL_REVISION3. Returns the optimal transfer length + /// granularity as a number of logical blocks. + /// + UINT32 OptimalTransferLengthGranularity; +} EFI_BLOCK_IO_MEDIA; + +#define EFI_BLOCK_IO_PROTOCOL_REVISION 0x00010000 +#define EFI_BLOCK_IO_PROTOCOL_REVISION2 0x00020001 +#define EFI_BLOCK_IO_PROTOCOL_REVISION3 0x00020031 + +/// +/// Revision defined in EFI1.1. +/// +#define EFI_BLOCK_IO_INTERFACE_REVISION EFI_BLOCK_IO_PROTOCOL_REVISION + +/// +/// This protocol provides control over block devices. +/// +struct _EFI_BLOCK_IO_PROTOCOL { + /// + /// The revision to which the block IO interface adheres. All future + /// revisions must be backwards compatible. If a future version is not + /// back wards compatible, it is not the same GUID. + /// + UINT64 Revision; + /// + /// Pointer to the EFI_BLOCK_IO_MEDIA data for this device. + /// + EFI_BLOCK_IO_MEDIA *Media; + + EFI_BLOCK_RESET Reset; + EFI_BLOCK_READ ReadBlocks; + EFI_BLOCK_WRITE WriteBlocks; + EFI_BLOCK_FLUSH FlushBlocks; + +}; + +extern EFI_GUID gEfiBlockIoProtocolGuid; + +#endif diff --git a/src/include/ipxe/efi/Protocol/SimpleFileSystem.h b/src/include/ipxe/efi/Protocol/SimpleFileSystem.h new file mode 100644 index 0000000..1981808 --- /dev/null +++ b/src/include/ipxe/efi/Protocol/SimpleFileSystem.h @@ -0,0 +1,403 @@ +/** @file + SimpleFileSystem protocol as defined in the UEFI 2.0 specification. + + The SimpleFileSystem protocol is the programmatic access to the FAT (12,16,32) + file system specified in UEFI 2.0. It can also be used to abstract a file + system other than FAT. + + UEFI 2.0 can boot from any valid EFI image contained in a SimpleFileSystem. + +Copyright (c) 2006 - 2011, 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 that accompanies this distribution. +The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php. + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#ifndef __SIMPLE_FILE_SYSTEM_H__ +#define __SIMPLE_FILE_SYSTEM_H__ + +FILE_LICENCE ( BSD3 ); + +#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \ + { \ + 0x964e5b22, 0x6459, 0x11d2, {0x8e, 0x39, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \ + } + +typedef struct _EFI_SIMPLE_FILE_SYSTEM_PROTOCOL EFI_SIMPLE_FILE_SYSTEM_PROTOCOL; + +typedef struct _EFI_FILE_PROTOCOL EFI_FILE_PROTOCOL; +typedef struct _EFI_FILE_PROTOCOL *EFI_FILE_HANDLE; + +/// +/// Protocol GUID name defined in EFI1.1. +/// +#define SIMPLE_FILE_SYSTEM_PROTOCOL EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID + +/// +/// Protocol name defined in EFI1.1. +/// +typedef EFI_SIMPLE_FILE_SYSTEM_PROTOCOL EFI_FILE_IO_INTERFACE; +typedef EFI_FILE_PROTOCOL EFI_FILE; + +/** + Open the root directory on a volume. + + @param This A pointer to the volume to open the root directory. + @param Root A pointer to the location to return the opened file handle for the + root directory. + + @retval EFI_SUCCESS The device was opened. + @retval EFI_UNSUPPORTED This volume does not support the requested file system type. + @retval EFI_NO_MEDIA The device has no medium. + @retval EFI_DEVICE_ERROR The device reported an error. + @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. + @retval EFI_ACCESS_DENIED The service denied access to the file. + @retval EFI_OUT_OF_RESOURCES The volume was not opened due to lack of resources. + @retval EFI_MEDIA_CHANGED The device has a different medium in it or the medium is no + longer supported. Any existing file handles for this volume are + no longer valid. To access the files on the new medium, the + volume must be reopened with OpenVolume(). + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_OPEN_VOLUME)( + IN EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *This, + OUT EFI_FILE_PROTOCOL **Root + ); + +#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION 0x00010000 + +/// +/// Revision defined in EFI1.1 +/// +#define EFI_FILE_IO_INTERFACE_REVISION EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_REVISION + +struct _EFI_SIMPLE_FILE_SYSTEM_PROTOCOL { + /// + /// The version of the EFI_SIMPLE_FILE_SYSTEM_PROTOCOL. The version + /// specified by this specification is 0x00010000. All future revisions + /// must be backwards compatible. + /// + UINT64 Revision; + EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_OPEN_VOLUME OpenVolume; +}; + +/** + Opens a new file relative to the source file's location. + + @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file + handle to the source location. This would typically be an open + handle to a directory. + @param NewHandle A pointer to the location to return the opened handle for the new + file. + @param FileName The Null-terminated string of the name of the file to be opened. + The file name may contain the following path modifiers: "\", ".", + and "..". + @param OpenMode The mode to open the file. The only valid combinations that the + file may be opened with are: Read, Read/Write, or Create/Read/Write. + @param Attributes Only valid for EFI_FILE_MODE_CREATE, in which case these are the + attribute bits for the newly created file. + + @retval EFI_SUCCESS The file was opened. + @retval EFI_NOT_FOUND The specified file could not be found on the device. + @retval EFI_NO_MEDIA The device has no medium. + @retval EFI_MEDIA_CHANGED The device has a different medium in it or the medium is no + longer supported. + @retval EFI_DEVICE_ERROR The device reported an error. + @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. + @retval EFI_WRITE_PROTECTED An attempt was made to create a file, or open a file for write + when the media is write-protected. + @retval EFI_ACCESS_DENIED The service denied access to the file. + @retval EFI_OUT_OF_RESOURCES Not enough resources were available to open the file. + @retval EFI_VOLUME_FULL The volume is full. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_FILE_OPEN)( + IN EFI_FILE_PROTOCOL *This, + OUT EFI_FILE_PROTOCOL **NewHandle, + IN CHAR16 *FileName, + IN UINT64 OpenMode, + IN UINT64 Attributes + ); + +// +// Open modes +// +#define EFI_FILE_MODE_READ 0x0000000000000001ULL +#define EFI_FILE_MODE_WRITE 0x0000000000000002ULL +#define EFI_FILE_MODE_CREATE 0x8000000000000000ULL + +// +// File attributes +// +#define EFI_FILE_READ_ONLY 0x0000000000000001ULL +#define EFI_FILE_HIDDEN 0x0000000000000002ULL +#define EFI_FILE_SYSTEM 0x0000000000000004ULL +#define EFI_FILE_RESERVED 0x0000000000000008ULL +#define EFI_FILE_DIRECTORY 0x0000000000000010ULL +#define EFI_FILE_ARCHIVE 0x0000000000000020ULL +#define EFI_FILE_VALID_ATTR 0x0000000000000037ULL + +/** + Closes a specified file handle. + + @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file + handle to close. + + @retval EFI_SUCCESS The file was closed. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_FILE_CLOSE)( + IN EFI_FILE_PROTOCOL *This + ); + +/** + Close and delete the file handle. + + @param This A pointer to the EFI_FILE_PROTOCOL instance that is the + handle to the file to delete. + + @retval EFI_SUCCESS The file was closed and deleted, and the handle was closed. + @retval EFI_WARN_DELETE_FAILURE The handle was closed, but the file was not deleted. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_FILE_DELETE)( + IN EFI_FILE_PROTOCOL *This + ); + +/** + Reads data from a file. + + @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file + handle to read data from. + @param BufferSize On input, the size of the Buffer. On output, the amount of data + returned in Buffer. In both cases, the size is measured in bytes. + @param Buffer The buffer into which the data is read. + + @retval EFI_SUCCESS Data was read. + @retval EFI_NO_MEDIA The device has no medium. + @retval EFI_DEVICE_ERROR The device reported an error. + @retval EFI_DEVICE_ERROR An attempt was made to read from a deleted file. + @retval EFI_DEVICE_ERROR On entry, the current file position is beyond the end of the file. + @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. + @retval EFI_BUFFER_TO_SMALL The BufferSize is too small to read the current directory + entry. BufferSize has been updated with the size + needed to complete the request. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_FILE_READ)( + IN EFI_FILE_PROTOCOL *This, + IN OUT UINTN *BufferSize, + OUT VOID *Buffer + ); + +/** + Writes data to a file. + + @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file + handle to write data to. + @param BufferSize On input, the size of the Buffer. On output, the amount of data + actually written. In both cases, the size is measured in bytes. + @param Buffer The buffer of data to write. + + @retval EFI_SUCCESS Data was written. + @retval EFI_UNSUPPORTED Writes to open directory files are not supported. + @retval EFI_NO_MEDIA The device has no medium. + @retval EFI_DEVICE_ERROR The device reported an error. + @retval EFI_DEVICE_ERROR An attempt was made to write to a deleted file. + @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. + @retval EFI_WRITE_PROTECTED The file or medium is write-protected. + @retval EFI_ACCESS_DENIED The file was opened read only. + @retval EFI_VOLUME_FULL The volume is full. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_FILE_WRITE)( + IN EFI_FILE_PROTOCOL *This, + IN OUT UINTN *BufferSize, + IN VOID *Buffer + ); + +/** + Sets a file's current position. + + @param This A pointer to the EFI_FILE_PROTOCOL instance that is the + file handle to set the requested position on. + @param Position The byte position from the start of the file to set. + + @retval EFI_SUCCESS The position was set. + @retval EFI_UNSUPPORTED The seek request for nonzero is not valid on open + directories. + @retval EFI_DEVICE_ERROR An attempt was made to set the position of a deleted file. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_FILE_SET_POSITION)( + IN EFI_FILE_PROTOCOL *This, + IN UINT64 Position + ); + +/** + Returns a file's current position. + + @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file + handle to get the current position on. + @param Position The address to return the file's current position value. + + @retval EFI_SUCCESS The position was returned. + @retval EFI_UNSUPPORTED The request is not valid on open directories. + @retval EFI_DEVICE_ERROR An attempt was made to get the position from a deleted file. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_FILE_GET_POSITION)( + IN EFI_FILE_PROTOCOL *This, + OUT UINT64 *Position + ); + +/** + Returns information about a file. + + @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file + handle the requested information is for. + @param InformationType The type identifier for the information being requested. + @param BufferSize On input, the size of Buffer. On output, the amount of data + returned in Buffer. In both cases, the size is measured in bytes. + @param Buffer A pointer to the data buffer to return. The buffer's type is + indicated by InformationType. + + @retval EFI_SUCCESS The information was returned. + @retval EFI_UNSUPPORTED The InformationType is not known. + @retval EFI_NO_MEDIA The device has no medium. + @retval EFI_DEVICE_ERROR The device reported an error. + @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. + @retval EFI_BUFFER_TOO_SMALL The BufferSize is too small to read the current directory entry. + BufferSize has been updated with the size needed to complete + the request. +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_FILE_GET_INFO)( + IN EFI_FILE_PROTOCOL *This, + IN EFI_GUID *InformationType, + IN OUT UINTN *BufferSize, + OUT VOID *Buffer + ); + +/** + Sets information about a file. + + @param File A pointer to the EFI_FILE_PROTOCOL instance that is the file + handle the information is for. + @param InformationType The type identifier for the information being set. + @param BufferSize The size, in bytes, of Buffer. + @param Buffer A pointer to the data buffer to write. The buffer's type is + indicated by InformationType. + + @retval EFI_SUCCESS The information was set. + @retval EFI_UNSUPPORTED The InformationType is not known. + @retval EFI_NO_MEDIA The device has no medium. + @retval EFI_DEVICE_ERROR The device reported an error. + @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. + @retval EFI_WRITE_PROTECTED InformationType is EFI_FILE_INFO_ID and the media is + read-only. + @retval EFI_WRITE_PROTECTED InformationType is EFI_FILE_PROTOCOL_SYSTEM_INFO_ID + and the media is read only. + @retval EFI_WRITE_PROTECTED InformationType is EFI_FILE_SYSTEM_VOLUME_LABEL_ID + and the media is read-only. + @retval EFI_ACCESS_DENIED An attempt is made to change the name of a file to a + file that is already present. + @retval EFI_ACCESS_DENIED An attempt is being made to change the EFI_FILE_DIRECTORY + Attribute. + @retval EFI_ACCESS_DENIED An attempt is being made to change the size of a directory. + @retval EFI_ACCESS_DENIED InformationType is EFI_FILE_INFO_ID and the file was opened + read-only and an attempt is being made to modify a field + other than Attribute. + @retval EFI_VOLUME_FULL The volume is full. + @retval EFI_BAD_BUFFER_SIZE BufferSize is smaller than the size of the type indicated + by InformationType. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_FILE_SET_INFO)( + IN EFI_FILE_PROTOCOL *This, + IN EFI_GUID *InformationType, + IN UINTN BufferSize, + IN VOID *Buffer + ); + +/** + Flushes all modified data associated with a file to a device. + + @param This A pointer to the EFI_FILE_PROTOCOL instance that is the file + handle to flush. + + @retval EFI_SUCCESS The data was flushed. + @retval EFI_NO_MEDIA The device has no medium. + @retval EFI_DEVICE_ERROR The device reported an error. + @retval EFI_VOLUME_CORRUPTED The file system structures are corrupted. + @retval EFI_WRITE_PROTECTED The file or medium is write-protected. + @retval EFI_ACCESS_DENIED The file was opened read-only. + @retval EFI_VOLUME_FULL The volume is full. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_FILE_FLUSH)( + IN EFI_FILE_PROTOCOL *This + ); + +#define EFI_FILE_PROTOCOL_REVISION 0x00010000 +// +// Revision defined in EFI1.1. +// +#define EFI_FILE_REVISION EFI_FILE_PROTOCOL_REVISION + +/// +/// The EFI_FILE_PROTOCOL provides file IO access to supported file systems. +/// An EFI_FILE_PROTOCOL provides access to a file's or directory's contents, +/// and is also a reference to a location in the directory tree of the file system +/// in which the file resides. With any given file handle, other files may be opened +/// relative to this file's location, yielding new file handles. +/// +struct _EFI_FILE_PROTOCOL { + /// + /// The version of the EFI_FILE_PROTOCOL interface. The version specified + /// by this specification is 0x00010000. Future versions are required + /// to be backward compatible to version 1.0. + /// + UINT64 Revision; + EFI_FILE_OPEN Open; + EFI_FILE_CLOSE Close; + EFI_FILE_DELETE Delete; + EFI_FILE_READ Read; + EFI_FILE_WRITE Write; + EFI_FILE_GET_POSITION GetPosition; + EFI_FILE_SET_POSITION SetPosition; + EFI_FILE_GET_INFO GetInfo; + EFI_FILE_SET_INFO SetInfo; + EFI_FILE_FLUSH Flush; +}; + + +extern EFI_GUID gEfiSimpleFileSystemProtocolGuid; + +#endif diff --git a/src/include/ipxe/efi/efi.h b/src/include/ipxe/efi/efi.h index b5ce7df..8a216b5 100644 --- a/src/include/ipxe/efi/efi.h +++ b/src/include/ipxe/efi/efi.h @@ -142,7 +142,5 @@ extern EFI_SYSTEM_TABLE *efi_systab; extern const char * efi_strerror ( EFI_STATUS efirc ); extern EFI_STATUS efi_init ( EFI_HANDLE image_handle, EFI_SYSTEM_TABLE *systab ); -extern int efi_download_install ( EFI_HANDLE *device_handle ); -extern void efi_download_uninstall ( EFI_HANDLE device_handle ); #endif /* _IPXE_EFI_H */ diff --git a/src/include/ipxe/efi/ipxe_download.h b/src/include/ipxe/efi/efi_download.h index 22e3cef..3ce4972 100644 --- a/src/include/ipxe/efi/ipxe_download.h +++ b/src/include/ipxe/efi/efi_download.h @@ -151,4 +151,7 @@ struct _IPXE_DOWNLOAD_PROTOCOL { 0x3eaeaebd, 0xdecf, 0x493b, { 0x9b, 0xd1, 0xcd, 0xb2, 0xde, 0xca, 0xe7, 0x19 } \ } +extern int efi_download_install ( EFI_HANDLE *device ); +extern void efi_download_uninstall ( EFI_HANDLE device ); + #endif /* _IPXE_DOWNLOAD_H */ diff --git a/src/include/ipxe/efi/efi_file.h b/src/include/ipxe/efi/efi_file.h new file mode 100644 index 0000000..0d75cf5 --- /dev/null +++ b/src/include/ipxe/efi/efi_file.h @@ -0,0 +1,13 @@ +#ifndef _IPXE_EFI_FILE_H +#define _IPXE_EFI_FILE_H + +/** @file + * + * EFI file protocols + * + */ + +extern int efi_file_install ( EFI_HANDLE *handle ); +extern void efi_file_uninstall ( EFI_HANDLE handle ); + +#endif /* _IPXE_EFI_FILE_H */ |