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1. CoreOpenImageFile(): FilePath should be IN OUT.

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2. Use offset address to build device path instead of absolute address.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4294 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
2007-11-09 07:26:24 +00:00
parent 189575e88b
commit cfe9de5244
4 changed files with 74 additions and 73 deletions
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102
MdeModulePkg/Core/Dxe/Image/ImageFile.c
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@ -1,22 +1,22 @@
/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. 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.
Copyright (c) 2006 - 2007, Intel Corporation
All rights reserved. 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.
Module Name:
ImageFile.c
Abstract:
Revision History
@ -30,7 +30,7 @@ CoreOpenImageFile (
IN BOOLEAN BootPolicy,
IN VOID *SourceBuffer OPTIONAL,
IN UINTN SourceSize,
IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
IN OUT EFI_DEVICE_PATH_PROTOCOL **FilePath,
OUT EFI_HANDLE *DeviceHandle,
IN IMAGE_FILE_HANDLE *ImageFileHandle,
OUT UINT32 *AuthenticationStatus
@ -52,16 +52,16 @@ Arguments:
FilePath - The specific file path from which the image is loaded
DeviceHandle - Pointer to the return device handle.
ImageFileHandle - Pointer to the image file handle.
AuthenticationStatus - Pointer to a caller-allocated UINT32 in which the authentication status is returned.
AuthenticationStatus - Pointer to a caller-allocated UINT32 in which the authentication status is returned.
Returns:
EFI_SUCCESS - Image file successfully opened.
EFI_LOAD_ERROR - If the caller passed a copy of the file, and SourceSize is 0.
EFI_INVALID_PARAMETER - File path is not valid.
EFI_NOT_FOUND - File not found.
--*/
@ -95,7 +95,7 @@ Returns:
ImageFileHandle->Source = SourceBuffer;
ImageFileHandle->SourceSize = SourceSize;
*DeviceHandle = NULL;
CoreLocateDevicePath (&gEfiDevicePathProtocolGuid, &FilePath, DeviceHandle);
CoreLocateDevicePath (&gEfiDevicePathProtocolGuid, FilePath, DeviceHandle);
if (SourceSize > 0) {
Status = EFI_SUCCESS;
} else {
@ -107,18 +107,18 @@ Returns:
//
// Make sure FilePath is valid
//
if (FilePath == NULL) {
if (*FilePath == NULL) {
return EFI_INVALID_PARAMETER;
}
//
// Check to see if it's in a Firmware Volume
//
FwVolFilePathNode = (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *)FilePath;
FwVolFilePathNode = (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *) *FilePath;
Status = CoreDevicePathToInterface (
&gEfiFirmwareVolume2ProtocolGuid,
(EFI_DEVICE_PATH_PROTOCOL **)&FwVolFilePathNode,
(VOID*)&FwVol,
&gEfiFirmwareVolume2ProtocolGuid,
(EFI_DEVICE_PATH_PROTOCOL **)&FwVolFilePathNode,
(VOID*)&FwVol,
DeviceHandle
);
if (!EFI_ERROR (Status)) {
@ -131,9 +131,9 @@ Returns:
SectionType = EFI_SECTION_PE32;
Pe32Buffer = NULL;
Status = FwVol->ReadSection (
FwVol,
NameGuid,
SectionType,
FwVol,
NameGuid,
SectionType,
0,
(VOID **)&Pe32Buffer,
&Pe32BufferSize,
@ -149,8 +149,8 @@ Returns:
}
Pe32Buffer = NULL;
Status = FwVol->ReadFile (
FwVol,
NameGuid,
FwVol,
NameGuid,
(VOID **)&Pe32Buffer,
&Pe32BufferSize,
&Type,
@ -158,7 +158,7 @@ Returns:
AuthenticationStatus
);
}
if (!EFI_ERROR (Status)) {
//
// One of the reads passed so we are done
@ -174,11 +174,11 @@ Returns:
//
// Attempt to access the file via a file system interface
//
FilePathNode = (FILEPATH_DEVICE_PATH *) FilePath;
FilePathNode = (FILEPATH_DEVICE_PATH *) *FilePath;
Status = CoreDevicePathToInterface (
&gEfiSimpleFileSystemProtocolGuid,
(EFI_DEVICE_PATH_PROTOCOL **)&FilePathNode,
(VOID*)&Volume,
&gEfiSimpleFileSystemProtocolGuid,
(EFI_DEVICE_PATH_PROTOCOL **)&FilePathNode,
(VOID*)&Volume,
DeviceHandle
);
if (!EFI_ERROR (Status)) {
@ -187,7 +187,7 @@ Returns:
//
Status = Volume->OpenVolume (Volume, &FileHandle);
if (!EFI_ERROR (Status)) {
//
// Parse each MEDIA_FILEPATH_DP node. There may be more than one, since the
// directory information and filename can be seperate. The goal is to inch
@ -239,7 +239,7 @@ Returns:
FileHandle,
&gEfiFileInfoGuid,
&FileInfoSize,
FileInfo
FileInfo
);
}
if (!EFI_ERROR (Status)) {
@ -267,14 +267,14 @@ Returns:
}
}
}
}
}
//
// Try LoadFile style
//
TempFilePath = FilePath;
TempFilePath = *FilePath;
Status = CoreDevicePathToInterface (
&gEfiLoadFileProtocolGuid,
&TempFilePath,
@ -350,12 +350,12 @@ Routine Description:
Arguments:
UserHandle - Image file handle
Offset - Offset to the source file
ReadSize - For input, pointer of size to read;
For output, pointer of size actually read.
Buffer - Buffer to write into
Returns:
@ -376,7 +376,7 @@ Returns:
EndPosition = Offset + *ReadSize;
if (EndPosition > FHand->SourceSize) {
*ReadSize = (UINT32)(FHand->SourceSize - Offset);
}
}
if (Offset >= FHand->SourceSize) {
*ReadSize = 0;
}
@ -402,13 +402,13 @@ Routine Description:
Arguments:
Protocol - The protocol to search for
FilePath - The specified device path
Interface - Interface of the protocol on the handle
Handle - The handle to the device on the specified device path that supports the protocol.
Returns:
Status code.
@ -435,7 +435,7 @@ CoreGrowBuffer (
Routine Description:
Helper function called as part of the code needed
to allocate the proper sized buffer for various
to allocate the proper sized buffer for various
EFI interfaces.
Arguments:
@ -445,10 +445,10 @@ Arguments:
Buffer - Current allocated buffer, or NULL
BufferSize - Current buffer size needed
Returns:
TRUE - if the buffer was reallocated and the caller
TRUE - if the buffer was reallocated and the caller
should try the API again.
FALSE - buffer could not be allocated and the caller
@ -473,7 +473,7 @@ Returns:
//
// If the status code is "buffer too small", resize the buffer
//
if (*Status == EFI_BUFFER_TOO_SMALL) {
if (*Buffer != NULL) {
CoreFreePool (*Buffer);
@ -482,9 +482,9 @@ Returns:
*Buffer = CoreAllocateBootServicesPool (BufferSize);
if (*Buffer != NULL) {
TryAgain = TRUE;
} else {
} else {
*Status = EFI_OUT_OF_RESOURCES;
}
}
}
//