diff options
Diffstat (limited to 'MdeModulePkg/Core/Dxe/FwVol/FwVolRead.c')
| -rw-r--r-- | MdeModulePkg/Core/Dxe/FwVol/FwVolRead.c | 250 |
1 files changed, 128 insertions, 122 deletions
diff --git a/MdeModulePkg/Core/Dxe/FwVol/FwVolRead.c b/MdeModulePkg/Core/Dxe/FwVol/FwVolRead.c index 5b5b659..0eda2e5 100644 --- a/MdeModulePkg/Core/Dxe/FwVol/FwVolRead.c +++ b/MdeModulePkg/Core/Dxe/FwVol/FwVolRead.c @@ -36,23 +36,20 @@ Required Alignment Alignment Value in FFS Alignment Value in UINT8 mFvAttributes[] = {0, 4, 7, 9, 10, 12, 15, 16};
+
+/**
+ Convert the FFS File Attributes to FV File Attributes
+
+ @param FfsAttributes The attributes of UINT8 type.
+
+ @return The attributes of EFI_FV_FILE_ATTRIBUTES
+
+**/
STATIC
EFI_FV_FILE_ATTRIBUTES
FfsAttributes2FvFileAttributes (
IN EFI_FFS_FILE_ATTRIBUTES FfsAttributes
)
-/*++
-
- Routine Description:
- Convert the FFS File Attributes to FV File Attributes
-
- Arguments:
- FfsAttributes - The attributes of UINT8 type.
-
- Returns:
- The attributes of EFI_FV_FILE_ATTRIBUTES
-
---*/
{
FfsAttributes = (EFI_FFS_FILE_ATTRIBUTES)((FfsAttributes & FFS_ATTRIB_DATA_ALIGNMENT) >> 3);
ASSERT (FfsAttributes < 8);
@@ -61,6 +58,53 @@ FfsAttributes2FvFileAttributes ( }
+
+/**
+ Given the input key, search for the next matching file in the volume.
+
+ @param This Indicates the calling context.
+ @param Key Key is a pointer to a caller allocated
+ buffer that contains implementation specific
+ data that is used to track where to begin
+ the search for the next file. The size of
+ the buffer must be at least This->KeySize
+ bytes long. To reinitialize the search and
+ begin from the beginning of the firmware
+ volume, the entire buffer must be cleared to
+ zero. Other than clearing the buffer to
+ initiate a new search, the caller must not
+ modify the data in the buffer between calls
+ to GetNextFile().
+ @param FileType FileType is a pointer to a caller allocated
+ EFI_FV_FILETYPE. The GetNextFile() API can
+ filter it's search for files based on the
+ value of *FileType input. A *FileType input
+ of 0 causes GetNextFile() to search for
+ files of all types. If a file is found, the
+ file's type is returned in *FileType.
+ *FileType is not modified if no file is
+ found.
+ @param NameGuid NameGuid is a pointer to a caller allocated
+ EFI_GUID. If a file is found, the file's
+ name is returned in *NameGuid. *NameGuid is
+ not modified if no file is found.
+ @param Attributes Attributes is a pointer to a caller
+ allocated EFI_FV_FILE_ATTRIBUTES. If a file
+ is found, the file's attributes are returned
+ in *Attributes. *Attributes is not modified
+ if no file is found.
+ @param Size Size is a pointer to a caller allocated
+ UINTN. If a file is found, the file's size
+ is returned in *Size. *Size is not modified
+ if no file is found.
+
+ @retval EFI_SUCCESS Successfully find the file.
+ @retval EFI_DEVICE_ERROR Device error.
+ @retval EFI_ACCESS_DENIED Fv could not read.
+ @retval EFI_NOT_FOUND No matching file found.
+ @retval EFI_INVALID_PARAMETER Invalid parameter
+
+**/
EFI_STATUS
EFIAPI
FvGetNextFile (
@@ -69,51 +113,8 @@ FvGetNextFile ( IN OUT EFI_FV_FILETYPE *FileType,
OUT EFI_GUID *NameGuid,
OUT EFI_FV_FILE_ATTRIBUTES *Attributes,
- OUT UINTN *Size
+ OUT UINTN *Size
)
-/*++
-
-Routine Description:
- Given the input key, search for the next matching file in the volume.
-
-Arguments:
- This - Indicates the calling context.
- FileType - FileType is a pointer to a caller allocated
- EFI_FV_FILETYPE. The GetNextFile() API can filter it's
- search for files based on the value of *FileType input.
- A *FileType input of 0 causes GetNextFile() to search for
- files of all types. If a file is found, the file's type
- is returned in *FileType. *FileType is not modified if
- no file is found.
- Key - Key is a pointer to a caller allocated buffer that
- contains implementation specific data that is used to
- track where to begin the search for the next file.
- The size of the buffer must be at least This->KeySize
- bytes long. To reinitialize the search and begin from
- the beginning of the firmware volume, the entire buffer
- must be cleared to zero. Other than clearing the buffer
- to initiate a new search, the caller must not modify the
- data in the buffer between calls to GetNextFile().
- NameGuid - NameGuid is a pointer to a caller allocated EFI_GUID.
- If a file is found, the file's name is returned in
- *NameGuid. *NameGuid is not modified if no file is
- found.
- Attributes - Attributes is a pointer to a caller allocated
- EFI_FV_FILE_ATTRIBUTES. If a file is found, the file's
- attributes are returned in *Attributes. *Attributes is
- not modified if no file is found.
- Size - Size is a pointer to a caller allocated UINTN.
- If a file is found, the file's size is returned in *Size.
- *Size is not modified if no file is found.
-
-Returns:
- EFI_SUCCESS - Successfully find the file.
- EFI_DEVICE_ERROR - Device error.
- EFI_ACCESS_DENIED - Fv could not read.
- EFI_NOT_FOUND - No matching file found.
- EFI_INVALID_PARAMETER - Invalid parameter
-
---*/
{
EFI_STATUS Status;
FV_DEVICE *FvDevice;
@@ -218,6 +219,47 @@ Returns: }
+
+/**
+ Locates a file in the firmware volume and
+ copies it to the supplied buffer.
+
+ @param This Indicates the calling context.
+ @param NameGuid Pointer to an EFI_GUID, which is the
+ filename.
+ @param Buffer Buffer is a pointer to pointer to a buffer
+ in which the file or section contents or are
+ returned.
+ @param BufferSize BufferSize is a pointer to caller allocated
+ UINTN. On input *BufferSize indicates the
+ size in bytes of the memory region pointed
+ to by Buffer. On output, *BufferSize
+ contains the number of bytes required to
+ read the file.
+ @param FoundType FoundType is a pointer to a caller allocated
+ EFI_FV_FILETYPE that on successful return
+ from Read() contains the type of file read.
+ This output reflects the file type
+ irrespective of the value of the SectionType
+ input.
+ @param FileAttributes FileAttributes is a pointer to a caller
+ allocated EFI_FV_FILE_ATTRIBUTES. On
+ successful return from Read(),
+ *FileAttributes contains the attributes of
+ the file read.
+ @param AuthenticationStatus AuthenticationStatus is a pointer to a
+ caller allocated UINTN in which the
+ authentication status is returned.
+
+ @retval EFI_SUCCESS Successfully read to memory buffer.
+ @retval EFI_WARN_BUFFER_TOO_SMALL Buffer too small.
+ @retval EFI_NOT_FOUND Not found.
+ @retval EFI_DEVICE_ERROR Device error.
+ @retval EFI_ACCESS_DENIED Could not read.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+ @retval EFI_OUT_OF_RESOURCES Not enough buffer to be allocated.
+
+**/
EFI_STATUS
EFIAPI
FvReadFile (
@@ -229,44 +271,6 @@ FvReadFile ( OUT EFI_FV_FILE_ATTRIBUTES *FileAttributes,
OUT UINT32 *AuthenticationStatus
)
-/*++
-
-Routine Description:
- Locates a file in the firmware volume and
- copies it to the supplied buffer.
-
-Arguments:
- This - Indicates the calling context.
- NameGuid - Pointer to an EFI_GUID, which is the filename.
- Buffer - Buffer is a pointer to pointer to a buffer in
- which the file or section contents or are returned.
- BufferSize - BufferSize is a pointer to caller allocated
- UINTN. On input *BufferSize indicates the size
- in bytes of the memory region pointed to by
- Buffer. On output, *BufferSize contains the number
- of bytes required to read the file.
- FoundType - FoundType is a pointer to a caller allocated
- EFI_FV_FILETYPE that on successful return from Read()
- contains the type of file read. This output reflects
- the file type irrespective of the value of the
- SectionType input.
- FileAttributes - FileAttributes is a pointer to a caller allocated
- EFI_FV_FILE_ATTRIBUTES. On successful return from
- Read(), *FileAttributes contains the attributes of
- the file read.
- AuthenticationStatus - AuthenticationStatus is a pointer to a caller
- allocated UINTN in which the authentication status
- is returned.
-Returns:
- EFI_SUCCESS - Successfully read to memory buffer.
- EFI_WARN_BUFFER_TOO_SMALL - Buffer too small.
- EFI_NOT_FOUND - Not found.
- EFI_DEVICE_ERROR - Device error.
- EFI_ACCESS_DENIED - Could not read.
- EFI_INVALID_PARAMETER - Invalid parameter.
- EFI_OUT_OF_RESOURCES - Not enough buffer to be allocated.
-
---*/
{
EFI_STATUS Status;
FV_DEVICE *FvDevice;
@@ -361,6 +365,35 @@ Returns: }
+
+/**
+ Locates a section in a given FFS File and
+ copies it to the supplied buffer (not including section header).
+
+ @param This Indicates the calling context.
+ @param NameGuid Pointer to an EFI_GUID, which is the
+ filename.
+ @param SectionType Indicates the section type to return.
+ @param SectionInstance Indicates which instance of sections with a
+ type of SectionType to return.
+ @param Buffer Buffer is a pointer to pointer to a buffer
+ in which the file or section contents or are
+ returned.
+ @param BufferSize BufferSize is a pointer to caller allocated
+ UINTN.
+ @param AuthenticationStatus AuthenticationStatus is a pointer to a
+ caller allocated UINT32 in which the
+ authentication status is returned.
+
+ @retval EFI_SUCCESS Successfully read the file section into
+ buffer.
+ @retval EFI_WARN_BUFFER_TOO_SMALL Buffer too small.
+ @retval EFI_NOT_FOUND Section not found.
+ @retval EFI_DEVICE_ERROR Device error.
+ @retval EFI_ACCESS_DENIED Could not read.
+ @retval EFI_INVALID_PARAMETER Invalid parameter.
+
+**/
EFI_STATUS
EFIAPI
FvReadFileSection (
@@ -372,34 +405,6 @@ FvReadFileSection ( IN OUT UINTN *BufferSize,
OUT UINT32 *AuthenticationStatus
)
-/*++
-
- Routine Description:
- Locates a section in a given FFS File and
- copies it to the supplied buffer (not including section header).
-
- Arguments:
- This - Indicates the calling context.
- NameGuid - Pointer to an EFI_GUID, which is the filename.
- SectionType - Indicates the section type to return.
- SectionInstance - Indicates which instance of sections with a type of
- SectionType to return.
- Buffer - Buffer is a pointer to pointer to a buffer in which
- the file or section contents or are returned.
- BufferSize - BufferSize is a pointer to caller allocated UINTN.
- AuthenticationStatus -AuthenticationStatus is a pointer to a caller
- allocated UINT32 in which the authentication status
- is returned.
-
- Returns:
- EFI_SUCCESS - Successfully read the file section into buffer.
- EFI_WARN_BUFFER_TOO_SMALL - Buffer too small.
- EFI_NOT_FOUND - Section not found.
- EFI_DEVICE_ERROR - Device error.
- EFI_ACCESS_DENIED - Could not read.
- EFI_INVALID_PARAMETER - Invalid parameter.
-
---*/
{
EFI_STATUS Status;
FV_DEVICE *FvDevice;
@@ -482,3 +487,4 @@ Done: return Status;
}
+
|