1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2002 Juli Mallett. All rights reserved. 5 * 6 * This software was written by Juli Mallett <jmallett@FreeBSD.org> for the 7 * FreeBSD project. Redistribution and use in source and binary forms, with 8 * or without modification, are permitted provided that the following 9 * conditions are met: 10 * 11 * 1. Redistribution of source code must retain the above copyright notice, 12 * this list of conditions and the following disclaimer. 13 * 2. Redistribution in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 21 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 23 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 25 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 26 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/mount.h> 35 #include <sys/disklabel.h> 36 #include <sys/stat.h> 37 38 #include <ufs/ufs/ufsmount.h> 39 #include <ufs/ufs/dinode.h> 40 #include <ufs/ffs/fs.h> 41 42 #include <errno.h> 43 #include <fcntl.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <unistd.h> 48 49 #include <libufs.h> 50 51 int 52 getino(struct uufsd *disk, void **dino, ino_t inode, int *mode) 53 { 54 ino_t min, max; 55 caddr_t inoblock; 56 struct ufs1_dinode *dp1; 57 struct ufs2_dinode *dp2; 58 struct fs *fs; 59 60 ERROR(disk, NULL); 61 62 fs = &disk->d_fs; 63 if (inode >= (ino_t)fs->fs_ipg * fs->fs_ncg) { 64 ERROR(disk, "inode number out of range"); 65 return (-1); 66 } 67 inoblock = disk->d_inoblock; 68 min = disk->d_inomin; 69 max = disk->d_inomax; 70 71 if (inoblock == NULL) { 72 inoblock = malloc(fs->fs_bsize); 73 if (inoblock == NULL) { 74 ERROR(disk, "unable to allocate inode block"); 75 return (-1); 76 } 77 disk->d_inoblock = inoblock; 78 } 79 if (inode >= min && inode < max) 80 goto gotit; 81 bread(disk, fsbtodb(fs, ino_to_fsba(fs, inode)), inoblock, 82 fs->fs_bsize); 83 disk->d_inomin = min = inode - (inode % INOPB(fs)); 84 disk->d_inomax = max = min + INOPB(fs); 85 gotit: switch (disk->d_ufs) { 86 case 1: 87 dp1 = &((struct ufs1_dinode *)inoblock)[inode - min]; 88 if (mode != NULL) 89 *mode = dp1->di_mode & IFMT; 90 if (dino != NULL) 91 *dino = dp1; 92 return (0); 93 case 2: 94 dp2 = &((struct ufs2_dinode *)inoblock)[inode - min]; 95 if (mode != NULL) 96 *mode = dp2->di_mode & IFMT; 97 if (dino != NULL) 98 *dino = dp2; 99 return (0); 100 default: 101 break; 102 } 103 ERROR(disk, "unknown UFS filesystem type"); 104 return (-1); 105 } 106 107 int 108 putino(struct uufsd *disk) 109 { 110 struct fs *fs; 111 112 fs = &disk->d_fs; 113 if (disk->d_inoblock == NULL) { 114 ERROR(disk, "No inode block allocated"); 115 return (-1); 116 } 117 if (bwrite(disk, fsbtodb(fs, ino_to_fsba(&disk->d_fs, disk->d_inomin)), 118 disk->d_inoblock, disk->d_fs.fs_bsize) <= 0) 119 return (-1); 120 return (0); 121 } 122