EFIAPI
EFI_STATUS
BootMonFsGetInfo (
IN EFI_FILE_PROTOCOL *This,
IN EFI_GUID *InformationType,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer
)
{
EFI_STATUS Status;
BOOTMON_FS_FILE *File;
BOOTMON_FS_INSTANCE *Instance;
if ((This == NULL) ||
(InformationType == NULL) ||
(BufferSize == NULL) ||
((Buffer == NULL) && (*BufferSize > 0)) ) {
return EFI_INVALID_PARAMETER;
}
File = BOOTMON_FS_FILE_FROM_FILE_THIS (This);
if (File->Info == NULL) {
return EFI_INVALID_PARAMETER;
}
Instance = File->Instance;
// If the instance has not been initialized yet then do it ...
if (!Instance->Initialized) {
Status = BootMonFsInitialize (Instance);
} else {
Status = EFI_SUCCESS;
}
if (!EFI_ERROR (Status)) {
if (CompareGuid (InformationType, &gEfiFileSystemVolumeLabelInfoIdGuid)
!= 0) {
Status = GetFileSystemVolumeLabelInfo (Instance, BufferSize, Buffer);
} else if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid) != 0) {
Status = GetFilesystemInfo (Instance, BufferSize, Buffer);
} else if (CompareGuid (InformationType, &gEfiFileInfoGuid) != 0) {
Status = GetFileInfo (Instance, File, BufferSize, Buffer);
} else if (CompareGuid (InformationType, &gArmBootMonFsFileInfoGuid) != 0) {
Status = GetBootMonFsFileInfo (Instance, File, BufferSize, Buffer);
} else {
Status = EFI_UNSUPPORTED;
}
}
return Status;
}
/**
Return information about a file or a file system.
@param[in] This A pointer to the EFI_FILE_PROTOCOL instance that
is the file handle the requested information is for.
@param[in] InformationType The type identifier for the information being requested :
EFI_FILE_INFO_ID or EFI_FILE_SYSTEM_INFO_ID or
EFI_FILE_SYSTEM_VOLUME_LABEL_ID
@param[in out] BufferSize The size, in bytes, of Buffer.
@param[out] Buffer A pointer to the data buffer to return. The type of the
data inside the buffer is indicated by InformationType.
@retval EFI_SUCCESS The information was returned.
@retval EFI_UNSUPPORTED The InformationType is not known.
@retval EFI_BUFFER_TOO_SMALL The BufferSize is too small to return the information.
BufferSize has been updated with the size needed to
complete the request.
@retval EFI_INVALID_PARAMETER The parameter "This" or "InformationType" or "BufferSize"
is NULL or "Buffer" is NULL and "*Buffersize" is greater
than 0.
**/
EFI_STATUS
FileGetInfo (
IN EFI_FILE *This,
IN EFI_GUID *InformationType,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer
)
{
SEMIHOST_FCB *Fcb;
EFI_STATUS Status;
UINTN ResultSize;
if ((This == NULL) ||
(InformationType == NULL) ||
(BufferSize == NULL) ||
((Buffer == NULL) && (*BufferSize > 0)) ) {
return EFI_INVALID_PARAMETER;
}
Fcb = SEMIHOST_FCB_FROM_THIS(This);
if (CompareGuid (InformationType, &gEfiFileSystemInfoGuid)) {
Status = GetFilesystemInfo (Fcb, BufferSize, Buffer);
} else if (CompareGuid (InformationType, &gEfiFileInfoGuid)) {
Status = GetFileInfo (Fcb, BufferSize, Buffer);
} else if (CompareGuid (InformationType, &gEfiFileSystemVolumeLabelInfoIdGuid)) {
ResultSize = StrSize (mSemihostFsLabel);
if (*BufferSize >= ResultSize) {
StrCpy (Buffer, mSemihostFsLabel);
Status = EFI_SUCCESS;
} else {
Status = EFI_BUFFER_TOO_SMALL;
}
*BufferSize = ResultSize;
} else {
Status = EFI_UNSUPPORTED;
}
return Status;
}
EFI_STATUS
FileGetInfo (
IN EFI_FILE *File,
IN EFI_GUID *InformationType,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer
)
{
SEMIHOST_FCB *Fcb = NULL;
EFI_STATUS Status = EFI_UNSUPPORTED;
Fcb = SEMIHOST_FCB_FROM_THIS(File);
if (CompareGuid(InformationType, &gEfiFileSystemInfoGuid) != 0) {
Status = GetFilesystemInfo(Fcb, BufferSize, Buffer);
} else if (CompareGuid(InformationType, &gEfiFileInfoGuid) != 0) {
Status = GetFileInfo(Fcb, BufferSize, Buffer);
}
return Status;
}
