1/*
 2 * inode.c
 3 * 
 4 * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com>
 5 */
 6
 7#include <linux/fs.h>
 8
 9#include "befs.h"
10#include "inode.h"
11
12/*
13	Validates the correctness of the befs inode
14	Returns BEFS_OK if the inode should be used, otherwise
15	returns BEFS_BAD_INODE
16*/
17int
18befs_check_inode(struct super_block *sb, befs_inode * raw_inode,
19		 befs_blocknr_t inode)
20{
21	u32 magic1 = fs32_to_cpu(sb, raw_inode->magic1);
22	befs_inode_addr ino_num = fsrun_to_cpu(sb, raw_inode->inode_num);
23	u32 flags = fs32_to_cpu(sb, raw_inode->flags);
24
25	/* check magic header. */
26	if (magic1 != BEFS_INODE_MAGIC1) {
27		befs_error(sb,
28			   "Inode has a bad magic header - inode = %lu", inode);
29		return BEFS_BAD_INODE;
30	}
31
32	/*
33	 * Sanity check2: inodes store their own block address. Check it.
34	 */
35	if (inode != iaddr2blockno(sb, &ino_num)) {
36		befs_error(sb, "inode blocknr field disagrees with vfs "
37			   "VFS: %lu, Inode %lu",
38			   inode, iaddr2blockno(sb, &ino_num));
39		return BEFS_BAD_INODE;
40	}
41
42	/*
43	 * check flag
44	 */
45
46	if (!(flags & BEFS_INODE_IN_USE)) {
47		befs_error(sb, "inode is not used - inode = %lu", inode);
48		return BEFS_BAD_INODE;
49	}
50
51	return BEFS_OK;
52}

 1/*
 2 * inode.c
 3 * 
 4 * Copyright (C) 2001 Will Dyson <will_dyson@pobox.com>
 5 */
 6
 7#include <linux/fs.h>
 8
 9#include "befs.h"
10#include "inode.h"
11
12/*
13	Validates the correctness of the befs inode
14	Returns BEFS_OK if the inode should be used, otherwise
15	returns BEFS_BAD_INODE
16*/
17int
18befs_check_inode(struct super_block *sb, befs_inode * raw_inode,
19		 befs_blocknr_t inode)
20{
21	u32 magic1 = fs32_to_cpu(sb, raw_inode->magic1);
22	befs_inode_addr ino_num = fsrun_to_cpu(sb, raw_inode->inode_num);
23	u32 flags = fs32_to_cpu(sb, raw_inode->flags);
24
25	/* check magic header. */
26	if (magic1 != BEFS_INODE_MAGIC1) {
27		befs_error(sb,
28			   "Inode has a bad magic header - inode = %lu", inode);
29		return BEFS_BAD_INODE;
30	}
31
32	/*
33	 * Sanity check2: inodes store their own block address. Check it.
34	 */
35	if (inode != iaddr2blockno(sb, &ino_num)) {
36		befs_error(sb, "inode blocknr field disagrees with vfs "
37			   "VFS: %lu, Inode %lu",
38			   inode, iaddr2blockno(sb, &ino_num));
39		return BEFS_BAD_INODE;
40	}
41
42	/*
43	 * check flag
44	 */
45
46	if (!(flags & BEFS_INODE_IN_USE)) {
47		befs_error(sb, "inode is not used - inode = %lu", inode);
48		return BEFS_BAD_INODE;
49	}
50
51	return BEFS_OK;
52}