Exemple #1
0
EFI_STATUS readFile(
	IN EFI_FILE *dir,
	IN INT32 index,
	IN EFI_SYSTEM_TABLE *systab,
	IN VOID *buf
)
{
	EFI_STATUS status;
	EFI_FILE *file;
	CHAR16 filename[10]; // Allow up to 9999 stories (Probably going to have to increase buffer size when this engine gets super popular :)
	INT32 index
	tostring(index, filename);
	Status=dir->Open(dir, &file, filename, EFI_FILE_MODE_READ, EFI_FILE_READ_ONLY); // open the file

	EFI_FILE_INFO *fileinfo;
	UINTN infosize = SIZE_OF_EFI_FILE_INFO;
	EFI_GUID info_type = EFI_FILE_INFO_ID;
	status = file->GetInfo(file, &info_type, &infosize, NULL);  // get the info size of file

	systab->BootServices->AllocatePool(AllocateAnyPages, infosize, (VOID **)&fileinfo);
	status=file->GetInfo(file, &info_type, &infosize, fileinfo);  // get info of file

	UINTN filesize = fileinfo->FileSize; // get filesize from info

	systab->BootServices->AllocatePool(AllocateAnyPages, filesize, (VOID **)&buf); // Allocate some room

	status=file->Read(file, &filesize, buf);

	systab->BootServices->FreePool(buf);
	systab->BootServices->FreePool(fileinfo);

	return EFI_SUCCESS;
}
Exemple #2
0
static int
efifs_stat(struct open_file *f, struct stat *sb)
{
	EFI_FILE *file = f->f_fsdata;
	union fileinfo fi;
	EFI_STATUS status;
	UINTN sz;

	if (file == NULL)
		return (EBADF);

	bzero(sb, sizeof(*sb));

	sz = sizeof(fi);
	status = file->GetInfo(file, &fi_guid, &sz, &fi);
	if (EFI_ERROR(status))
		return (efi_status_to_errno(status));

	sb->st_mode = S_IRUSR | S_IRGRP | S_IROTH;
	if ((fi.info.Attribute & EFI_FILE_READ_ONLY) == 0)
		sb->st_mode |= S_IWUSR | S_IWGRP | S_IWOTH;
	if (fi.info.Attribute & EFI_FILE_DIRECTORY)
		sb->st_mode |= S_IFDIR;
	else
		sb->st_mode |= S_IFREG;
	sb->st_nlink = 1;
	sb->st_atime = efi_time(&fi.info.LastAccessTime);
	sb->st_mtime = efi_time(&fi.info.ModificationTime);
	sb->st_ctime = efi_time(&fi.info.CreateTime);
	sb->st_size = fi.info.FileSize;
	sb->st_blocks = fi.info.PhysicalSize / S_BLKSIZE;
	sb->st_blksize = S_BLKSIZE;
	sb->st_birthtime = sb->st_ctime;
	return (0);
}
Exemple #3
0
/*
 * Print information about disks
 */
static void
efifs_dev_print(int verbose)
{
	union {
		EFI_FILE_SYSTEM_INFO info;
		char buffer[1024];
	} fi;
	char line[80];
	EFI_FILE_IO_INTERFACE *fsif;
	EFI_FILE *volume;
	EFI_HANDLE h;
	EFI_STATUS status;
	UINTN sz;
	int i, unit;

	for (unit = 0, h = efi_find_handle(&efifs_dev, 0);
	    h != NULL; h = efi_find_handle(&efifs_dev, ++unit)) {
		sprintf(line, "    %s%d: ", efifs_dev.dv_name, unit);
		pager_output(line);

		status = BS->HandleProtocol(h, &sfs_guid, (VOID **)&fsif);
		if (EFI_ERROR(status))
			goto err;

		status = fsif->OpenVolume(fsif, &volume);
		if (EFI_ERROR(status))
			goto err;

		sz = sizeof(fi);
		status = volume->GetInfo(volume, &fs_guid, &sz, &fi);
		volume->Close(volume);
		if (EFI_ERROR(status))
			goto err;

		if (fi.info.ReadOnly)
			pager_output("[RO] ");
		else
			pager_output("     ");
		for (i = 0; fi.info.VolumeLabel[i] != 0; i++)
			fi.buffer[i] = fi.info.VolumeLabel[i];
		fi.buffer[i] = 0;
		if (fi.buffer[0] != 0)
			pager_output(fi.buffer);
		else
			pager_output("EFI filesystem");
		pager_output("\n");
		continue;

	err:
		sprintf(line, "[--] error %d: unable to obtain information\n",
		    efi_status_to_errno(status));
		pager_output(line);
	}
}