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UiApp code split from IntelFrameworkModulePkg/Universal/BdsDxe driver.

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This is the UI part of the old BdsDxe driver, also remove the legacy boot option related code.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18111 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Eric Dong
2015-07-30 03:41:35 +00:00
committed by ydong10
parent 6ed41dadaa
commit 143f0b1de8
37 changed files with 13897 additions and 0 deletions
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369
MdeModulePkg/Application/UiApp/BootMaint/BmLib.c Normal file
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/** @file
Utility routines used by boot maintenance modules.
Copyright (c) 2015, 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.
**/
#include "BootMaint.h"
/**
Find the first instance of this Protocol
in the system and return it's interface.
@param ProtocolGuid Provides the protocol to search for
@param Interface On return, a pointer to the first interface
that matches ProtocolGuid
@retval EFI_SUCCESS A protocol instance matching ProtocolGuid was found
@retval EFI_NOT_FOUND No protocol instances were found that match ProtocolGuid
**/
EFI_STATUS
EfiLibLocateProtocol (
IN EFI_GUID *ProtocolGuid,
OUT VOID **Interface
)
{
EFI_STATUS Status;
Status = gBS->LocateProtocol (
ProtocolGuid,
NULL,
(VOID **) Interface
);
return Status;
}
/**
Function opens and returns a file handle to the root directory of a volume.
@param DeviceHandle A handle for a device
@return A valid file handle or NULL is returned
**/
EFI_FILE_HANDLE
EfiLibOpenRoot (
IN EFI_HANDLE DeviceHandle
)
{
EFI_STATUS Status;
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *Volume;
EFI_FILE_HANDLE File;
File = NULL;
//
// File the file system interface to the device
//
Status = gBS->HandleProtocol (
DeviceHandle,
&gEfiSimpleFileSystemProtocolGuid,
(VOID *) &Volume
);
//
// Open the root directory of the volume
//
if (!EFI_ERROR (Status)) {
Status = Volume->OpenVolume (
Volume,
&File
);
}
//
// Done
//
return EFI_ERROR (Status) ? NULL : File;
}
/**
Helper function called as part of the code needed
to allocate the proper sized buffer for various
EFI interfaces.
@param Status Current status
@param Buffer Current allocated buffer, or NULL
@param BufferSize Current buffer size needed
@retval TRUE if the buffer was reallocated and the caller
should try the API again.
@retval FALSE The caller should not call this function again.
**/
BOOLEAN
EfiGrowBuffer (
IN OUT EFI_STATUS *Status,
IN OUT VOID **Buffer,
IN UINTN BufferSize
)
{
BOOLEAN TryAgain;
//
// If this is an initial request, buffer will be null with a new buffer size
//
if ((*Buffer == NULL) && (BufferSize != 0)) {
*Status = EFI_BUFFER_TOO_SMALL;
}
//
// If the status code is "buffer too small", resize the buffer
//
TryAgain = FALSE;
if (*Status == EFI_BUFFER_TOO_SMALL) {
if (*Buffer != NULL) {
FreePool (*Buffer);
}
*Buffer = AllocateZeroPool (BufferSize);
if (*Buffer != NULL) {
TryAgain = TRUE;
} else {
*Status = EFI_OUT_OF_RESOURCES;
}
}
//
// If there's an error, free the buffer
//
if (!TryAgain && EFI_ERROR (*Status) && (*Buffer != NULL)) {
FreePool (*Buffer);
*Buffer = NULL;
}
return TryAgain;
}
/**
Function deletes the variable specified by VarName and VarGuid.
@param VarName A Null-terminated Unicode string that is
the name of the vendor's variable.
@param VarGuid A unique identifier for the vendor.
@retval EFI_SUCCESS The variable was found and removed
@retval EFI_UNSUPPORTED The variable store was inaccessible
@retval EFI_NOT_FOUND The variable was not found
**/
EFI_STATUS
EfiLibDeleteVariable (
IN CHAR16 *VarName,
IN EFI_GUID *VarGuid
)
{
return gRT->SetVariable (
VarName,
VarGuid,
0,
0,
NULL
);
}
/**
Function gets the file system information from an open file descriptor,
and stores it in a buffer allocated from pool.
@param FHand The file handle.
@return A pointer to a buffer with file information.
@retval NULL is returned if failed to get Vaolume Label Info.
**/
EFI_FILE_SYSTEM_VOLUME_LABEL *
EfiLibFileSystemVolumeLabelInfo (
IN EFI_FILE_HANDLE FHand
)
{
EFI_STATUS Status;
EFI_FILE_SYSTEM_VOLUME_LABEL *Buffer;
UINTN BufferSize;
//
// Initialize for GrowBuffer loop
//
Buffer = NULL;
BufferSize = SIZE_OF_EFI_FILE_SYSTEM_VOLUME_LABEL + 200;
//
// Call the real function
//
while (EfiGrowBuffer (&Status, (VOID **) &Buffer, BufferSize)) {
Status = FHand->GetInfo (
FHand,
&gEfiFileSystemVolumeLabelInfoIdGuid,
&BufferSize,
Buffer
);
}
return Buffer;
}
/**
Duplicate a string.
@param Src The source.
@return A new string which is duplicated copy of the source.
@retval NULL If there is not enough memory.
**/
CHAR16 *
EfiStrDuplicate (
IN CHAR16 *Src
)
{
CHAR16 *Dest;
UINTN Size;
Size = StrSize (Src);
Dest = AllocateZeroPool (Size);
ASSERT (Dest != NULL);
if (Dest != NULL) {
CopyMem (Dest, Src, Size);
}
return Dest;
}
/**
Function gets the file information from an open file descriptor, and stores it
in a buffer allocated from pool.
@param FHand File Handle.
@return A pointer to a buffer with file information or NULL is returned
**/
EFI_FILE_INFO *
EfiLibFileInfo (
IN EFI_FILE_HANDLE FHand
)
{
EFI_STATUS Status;
EFI_FILE_INFO *Buffer;
UINTN BufferSize;
//
// Initialize for GrowBuffer loop
//
Buffer = NULL;
BufferSize = SIZE_OF_EFI_FILE_INFO + 200;
//
// Call the real function
//
while (EfiGrowBuffer (&Status, (VOID **) &Buffer, BufferSize)) {
Status = FHand->GetInfo (
FHand,
&gEfiFileInfoGuid,
&BufferSize,
Buffer
);
}
return Buffer;
}
/**
Function is used to determine the number of device path instances
that exist in a device path.
@param DevicePath A pointer to a device path data structure.
@return This function counts and returns the number of device path instances
in DevicePath.
**/
UINTN
EfiDevicePathInstanceCount (
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath
)
{
UINTN Count;
UINTN Size;
Count = 0;
while (GetNextDevicePathInstance (&DevicePath, &Size) != NULL) {
Count += 1;
}
return Count;
}
/**
Adjusts the size of a previously allocated buffer.
@param OldPool - A pointer to the buffer whose size is being adjusted.
@param OldSize - The size of the current buffer.
@param NewSize - The size of the new buffer.
@return The newly allocated buffer.
@retval NULL Allocation failed.
**/
VOID *
EfiReallocatePool (
IN VOID *OldPool,
IN UINTN OldSize,
IN UINTN NewSize
)
{
VOID *NewPool;
NewPool = NULL;
if (NewSize != 0) {
NewPool = AllocateZeroPool (NewSize);
}
if (OldPool != NULL) {
if (NewPool != NULL) {
CopyMem (NewPool, OldPool, OldSize < NewSize ? OldSize : NewSize);
}
FreePool (OldPool);
}
return NewPool;
}
/**
Get a string from the Data Hub record based on
a device path.
@param DevPath The device Path.
@return A string located from the Data Hub records based on
the device path.
@retval NULL If failed to get the String from Data Hub.
**/
UINT16 *
EfiLibStrFromDatahub (
IN EFI_DEVICE_PATH_PROTOCOL *DevPath
)
{
return NULL;
}