/*
* Copyright (c) 1995 The University of Utah and
* the Computer Systems Laboratory at the University of Utah (CSL).
* All rights reserved.
*
* Permission to use, copy, modify and distribute this software is hereby
* granted provided that (1) source code retains these copyright, permission,
* and disclaimer notices, and (2) redistributions including binaries
* reproduce the notices in supporting documentation, and (3) all advertising
* materials mentioning features or use of this software display the following
* acknowledgement: ``This product includes software developed by the
* Computer Systems Laboratory at the University of Utah.''
*
* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* CSL requests users of this software to return to csl-dist@cs.utah.edu any
* improvements that they make and grant CSL redistribution rights.
*
* Utah $Hdr$
* $FreeBSD$
*/
/*
* routines to convert on disk ext2 inodes into inodes and back
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/lock.h>
#include <sys/stat.h>
#include <sys/vnode.h>
#include <gnu/ext2fs/inode.h>
#include <gnu/ext2fs/ext2_fs.h>
#include <gnu/ext2fs/ext2_extern.h>
void
ext2_print_inode( in )
struct inode *in;
{
int i;
printf( "Inode: %5d", in->i_number);
printf( /* "Inode: %5d" */
" Type: %10s Mode: 0x%o Flags: 0x%x Version: %d\n",
"n/a", in->i_mode, in->i_flags, in->i_gen);
printf( "User: %5lu Group: %5lu Size: %lu\n",
(unsigned long)in->i_uid, (unsigned long)in->i_gid,
(unsigned long)in->i_size);
printf( "Links: %3d Blockcount: %d\n",
in->i_nlink, in->i_blocks);
printf( "ctime: 0x%x", in->i_ctime);
printf( "atime: 0x%x", in->i_atime);
printf( "mtime: 0x%x", in->i_mtime);
printf( "BLOCKS: ");
for(i=0; i < (in->i_blocks <= 24 ? ((in->i_blocks+1)/2): 12); i++)
printf("%d ", in->i_db[i]);
printf("\n");
}
/*
* raw ext2 inode to inode
*/
void
ext2_ei2i(ei, ip)
struct ext2_inode *ei;
struct inode *ip;
{
int i;
ip->i_nlink = ei->i_links_count;
/* Godmar thinks - if the link count is zero, then the inode is
unused - according to ext2 standards. Ufs marks this fact
by setting i_mode to zero - why ?
I can see that this might lead to problems in an undelete.
*/
ip->i_mode = ei->i_links_count ? ei->i_mode : 0;
ip->i_size = ei->i_size;
ip->i_atime = ei->i_atime;
ip->i_mtime = ei->i_mtime;
ip->i_ctime = ei->i_ctime;
ip->i_flags = 0;
ip->i_flags |= (ei->i_flags & EXT2_APPEND_FL) ? APPEND : 0;
ip->i_flags |= (ei->i_flags & EXT2_IMMUTABLE_FL) ? IMMUTABLE : 0;
ip->i_blocks = ei->i_blocks;
ip->i_gen = ei->i_generation;
ip->i_uid = ei->i_uid;
ip->i_gid = ei->i_gid;
/* XXX use memcpy */
for(i = 0; i < NDADDR; i++)
ip->i_db[i] = ei->i_block[i];
for(i = 0; i < NIADDR; i++)
ip->i_ib[i] = ei->i_block[EXT2_NDIR_BLOCKS + i];
}
/*
* inode to raw ext2 inode
*/
void
ext2_i2ei(ip, ei)
struct inode *ip;
struct ext2_inode *ei;
{
int i;
ei->i_mode = ip->i_mode;
ei->i_links_count = ip->i_nlink;
/*
Godmar thinks: if dtime is nonzero, ext2 says this inode
has been deleted, this would correspond to a zero link count
*/
ei->i_dtime = ei->i_links_count ? 0 : ip->i_mtime;
ei->i_size = ip->i_size;
ei->i_atime = ip->i_atime;
ei->i_mtime = ip->i_mtime;
ei->i_ctime = ip->i_ctime;
ei->i_flags = ip->i_flags;
ei->i_flags = 0;
ei->i_flags |= (ip->i_flags & APPEND) ? EXT2_APPEND_FL: 0;
ei->i_flags |= (ip->i_flags & IMMUTABLE) ? EXT2_IMMUTABLE_FL: 0;
ei->i_blocks = ip->i_blocks;
ei->i_generation = ip->i_gen;
ei->i_uid = ip->i_uid;
ei->i_gid = ip->i_gid;
/* XXX use memcpy */
for(i = 0; i < NDADDR; i++)
ei->i_block[i] = ip->i_db[i];
for(i = 0; i < NIADDR; i++)
ei->i_block[EXT2_NDIR_BLOCKS + i] = ip->i_ib[i];
}
