2 * Copyright (c) 1995 The University of Utah and
3 * the Computer Systems Laboratory at the University of Utah (CSL).
6 * Permission to use, copy, modify and distribute this software is hereby
7 * granted provided that (1) source code retains these copyright, permission,
8 * and disclaimer notices, and (2) redistributions including binaries
9 * reproduce the notices in supporting documentation, and (3) all advertising
10 * materials mentioning features or use of this software display the following
11 * acknowledgement: ``This product includes software developed by the
12 * Computer Systems Laboratory at the University of Utah.''
14 * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
15 * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
16 * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 * CSL requests users of this software to return to csl-dist@cs.utah.edu any
19 * improvements that they make and grant CSL redistribution rights.
22 * $FreeBSD: src/sys/gnu/ext2fs/ext2_inode_cnv.c,v 1.11 2000/01/01 17:39:21 bde Exp $
26 * routines to convert on disk ext2 inodes in dinodes and back
28 #include <sys/param.h>
29 #include <sys/systm.h>
32 #include <sys/vnode.h>
34 #include <machine/inttypes.h>
41 #include "ext2_extern.h"
44 ext2_print_dinode(struct ext2_dinode *di)
47 kprintf( /* "Inode: %5d" */
48 " Type: %10s Mode: 0x%o Flags: 0x%x Version: %d\n",
49 "n/a", di->di_mode, di->di_flags, di->di_gen);
50 kprintf( "User: %5lu Group: %5lu Size: %lu\n",
51 (unsigned long)di->di_uid, (unsigned long)di->di_gid,
52 (unsigned long)di->di_size);
53 kprintf( "Links: %3d Blockcount: %d\n",
54 di->di_nlink, di->di_blocks);
55 kprintf( "ctime: 0x%x", di->di_ctime);
56 kprintf( "atime: 0x%x", di->di_atime);
57 kprintf( "mtime: 0x%x", di->di_mtime);
59 for(i=0; i < (di->di_blocks <= 24 ? ((di->di_blocks+1)/2): 12); i++)
60 kprintf("%d ", di->di_db[i]);
65 ext2_print_inode(struct inode *in)
67 kprintf( "Inode: %"PRId64, in->i_number);
68 ext2_print_dinode(&in->i_din);
72 * raw ext2 inode to dinode
75 ext2_ei2di(struct ext2_inode *ei, struct ext2_dinode *di)
79 di->di_nlink = ei->i_links_count;
80 /* Godmar thinks - if the link count is zero, then the inode is
81 unused - according to ext2 standards. Ufs marks this fact
82 by setting i_mode to zero - why ?
83 I can see that this might lead to problems in an undelete.
85 di->di_mode = ei->i_links_count ? ei->i_mode : 0;
86 di->di_size = ei->i_size;
87 di->di_atime = ei->i_atime;
88 di->di_mtime = ei->i_mtime;
89 di->di_ctime = ei->i_ctime;
91 di->di_flags |= (ei->i_flags & EXT2_APPEND_FL) ? APPEND : 0;
92 di->di_flags |= (ei->i_flags & EXT2_IMMUTABLE_FL) ? IMMUTABLE : 0;
93 di->di_blocks = ei->i_blocks;
94 di->di_gen = ei->i_generation;
95 di->di_uid = ei->i_uid;
96 di->di_gid = ei->i_gid;
98 for(i = 0; i < NDADDR; i++)
99 di->di_db[i] = ei->i_block[i];
100 for(i = 0; i < NIADDR; i++)
101 di->di_ib[i] = ei->i_block[EXT2_NDIR_BLOCKS + i];
105 * dinode to raw ext2 inode
108 ext2_di2ei(struct ext2_dinode *di, struct ext2_inode *ei)
112 ei->i_mode = di->di_mode;
113 ei->i_links_count = di->di_nlink;
115 Godmar thinks: if dtime is nonzero, ext2 says this inode
116 has been deleted, this would correspond to a zero link count
118 ei->i_dtime = ei->i_links_count ? 0 : di->di_mtime;
119 ei->i_size = di->di_size;
120 ei->i_atime = di->di_atime;
121 ei->i_mtime = di->di_mtime;
122 ei->i_ctime = di->di_ctime;
123 ei->i_flags = di->di_flags;
125 ei->i_flags |= (di->di_flags & APPEND) ? EXT2_APPEND_FL: 0;
126 ei->i_flags |= (di->di_flags & IMMUTABLE)
127 ? EXT2_IMMUTABLE_FL: 0;
128 ei->i_blocks = di->di_blocks;
129 ei->i_generation = di->di_gen;
130 ei->i_uid = di->di_uid;
131 ei->i_gid = di->di_gid;
133 for(i = 0; i < NDADDR; i++)
134 ei->i_block[i] = di->di_db[i];
135 for(i = 0; i < NIADDR; i++)
136 ei->i_block[EXT2_NDIR_BLOCKS + i] = di->di_ib[i];