elilo/glue_ext2fs.c

74 lines
2.1 KiB
C
Raw Permalink Normal View History

/*
* Copyright (C) 2001-2003 Hewlett-Packard Co.
* Contributed by Stephane Eranian <eranian@hpl.hp.com>
*
* This file is part of the ELILO, the EFI Linux boot loader.
*
* ELILO is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* ELILO is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with ELILO; see the file COPYING. If not, write to the Free
* Software Foundation, 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Please check out the elilo.txt for complete documentation on how
* to use this program.
*/
#include <efi.h>
#include <efilib.h>
#include "glue_ext2fs.h"
#include "fs/ext2fs.h"
#include "strops.h"
static INTN glue(fileops_t *this, VOID *intf);
/* object exported to fileops */
fileops_fs_t ext2fs_glue = { EXT2FS_PROTOCOL , glue, ext2fs_install, ext2fs_uninstall};
static EFI_STATUS
ext2fs_infosize(ext2fs_interface_t *this, fops_fd_t fd, UINT64 *sz)
{
ext2fs_stat_t st;
EFI_STATUS status;
if (this == NULL || sz == NULL) return EFI_INVALID_PARAMETER;
status = this->ext2fs_fstat(this, fd, &st);
if (status != EFI_SUCCESS) return status;
*sz = (UINT64)st.st_size;
return EFI_SUCCESS;
}
static INTN
glue(fileops_t *fp, VOID *intf)
{
ext2fs_interface_t *ext2fs = (ext2fs_interface_t *)intf;
/* record underlying interface */
fp->intf = intf;
fp->open = (fops_open_t)ext2fs->ext2fs_open;
fp->read = (fops_read_t)ext2fs->ext2fs_read;
fp->close = (fops_close_t)ext2fs->ext2fs_close;
fp->infosize = (fops_infosize_t)ext2fs_infosize; /* local override */
fp->seek = (fops_seek_t)ext2fs->ext2fs_seek;
/* fill out the name of the underlying file system */
ext2fs->ext2fs_name(ext2fs, fp->name, FILEOPS_NAME_MAXLEN);
return 0;
}