1 /*- 2 * Copyright (c) 1995 The University of Utah and 3 * the Computer Systems Laboratory at the University of Utah (CSL). 4 * All rights reserved. 5 * 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.'' 13 * 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. 17 * 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. 20 * 21 * Utah $Hdr$ 22 * $FreeBSD$ 23 */ 24 25 /* 26 * routines to convert on disk ext2 inodes into inodes and back 27 */ 28 #include <sys/param.h> 29 #include <sys/systm.h> 30 #include <sys/lock.h> 31 #include <sys/stat.h> 32 #include <sys/vnode.h> 33 34 #include <fs/ext2fs/inode.h> 35 #include <fs/ext2fs/ext2fs.h> 36 #include <fs/ext2fs/ext2_extern.h> 37 #include <fs/ext2fs/ext2_dinode.h> 38 39 void 40 ext2_print_inode( in ) 41 struct inode *in; 42 { 43 int i; 44 45 printf( "Inode: %5d", in->i_number); 46 printf( /* "Inode: %5d" */ 47 " Type: %10s Mode: 0x%o Flags: 0x%x Version: %d\n", 48 "n/a", in->i_mode, in->i_flags, in->i_gen); 49 printf( "User: %5lu Group: %5lu Size: %lu\n", 50 (unsigned long)in->i_uid, (unsigned long)in->i_gid, 51 (unsigned long)in->i_size); 52 printf( "Links: %3d Blockcount: %d\n", 53 in->i_nlink, in->i_blocks); 54 printf( "ctime: 0x%x", in->i_ctime); 55 printf( "atime: 0x%x", in->i_atime); 56 printf( "mtime: 0x%x", in->i_mtime); 57 printf( "BLOCKS: "); 58 for(i=0; i < (in->i_blocks <= 24 ? ((in->i_blocks+1)/2): 12); i++) 59 printf("%d ", in->i_db[i]); 60 printf("\n"); 61 } 62 63 /* 64 * raw ext2 inode to inode 65 */ 66 void 67 ext2_ei2i(ei, ip) 68 struct ext2fs_dinode *ei; 69 struct inode *ip; 70 { 71 int i; 72 73 ip->i_nlink = ei->e2di_nlink; 74 /* Godmar thinks - if the link count is zero, then the inode is 75 unused - according to ext2 standards. Ufs marks this fact 76 by setting i_mode to zero - why ? 77 I can see that this might lead to problems in an undelete. 78 */ 79 ip->i_mode = ei->e2di_nlink ? ei->e2di_mode : 0; 80 ip->i_size = ei->e2di_size; 81 if (S_ISREG(ip->i_mode)) 82 ip->i_size |= ((u_int64_t)ei->e2di_size_high) << 32; 83 ip->i_atime = ei->e2di_atime; 84 ip->i_mtime = ei->e2di_mtime; 85 ip->i_ctime = ei->e2di_ctime; 86 ip->i_flags = 0; 87 ip->i_flags |= (ei->e2di_flags & EXT2_APPEND) ? SF_APPEND : 0; 88 ip->i_flags |= (ei->e2di_flags & EXT2_IMMUTABLE) ? SF_IMMUTABLE : 0; 89 ip->i_flags |= (ei->e2di_flags & EXT2_NODUMP) ? UF_NODUMP : 0; 90 ip->i_blocks = ei->e2di_nblock; 91 ip->i_gen = ei->e2di_gen; 92 ip->i_uid = ei->e2di_uid; 93 ip->i_gid = ei->e2di_gid; 94 /* XXX use memcpy */ 95 for(i = 0; i < NDADDR; i++) 96 ip->i_db[i] = ei->e2di_blocks[i]; 97 for(i = 0; i < NIADDR; i++) 98 ip->i_ib[i] = ei->e2di_blocks[EXT2_NDIR_BLOCKS + i]; 99 } 100 101 /* 102 * inode to raw ext2 inode 103 */ 104 void 105 ext2_i2ei(ip, ei) 106 struct inode *ip; 107 struct ext2fs_dinode *ei; 108 { 109 int i; 110 111 ei->e2di_mode = ip->i_mode; 112 ei->e2di_nlink = ip->i_nlink; 113 /* 114 Godmar thinks: if dtime is nonzero, ext2 says this inode 115 has been deleted, this would correspond to a zero link count 116 */ 117 ei->e2di_dtime = ei->e2di_nlink ? 0 : ip->i_mtime; 118 ei->e2di_size = ip->i_size; 119 if (S_ISREG(ip->i_mode)) 120 ei->e2di_size_high = ip->i_size >> 32; 121 ei->e2di_atime = ip->i_atime; 122 ei->e2di_mtime = ip->i_mtime; 123 ei->e2di_ctime = ip->i_ctime; 124 ei->e2di_flags = ip->i_flags; 125 ei->e2di_flags = 0; 126 ei->e2di_flags |= (ip->i_flags & SF_APPEND) ? EXT2_APPEND: 0; 127 ei->e2di_flags |= (ip->i_flags & SF_IMMUTABLE) ? EXT2_IMMUTABLE: 0; 128 ei->e2di_flags |= (ip->i_flags & UF_NODUMP) ? EXT2_NODUMP: 0; 129 ei->e2di_nblock = ip->i_blocks; 130 ei->e2di_gen = ip->i_gen; 131 ei->e2di_uid = ip->i_uid; 132 ei->e2di_gid = ip->i_gid; 133 /* XXX use memcpy */ 134 for(i = 0; i < NDADDR; i++) 135 ei->e2di_blocks[i] = ip->i_db[i]; 136 for(i = 0; i < NIADDR; i++) 137 ei->e2di_blocks[EXT2_NDIR_BLOCKS + i] = ip->i_ib[i]; 138 } 139