wapbl.c revision 1.2.10.1
1 /* $NetBSD: wapbl.c,v 1.2.10.1 2010/04/21 05:26:34 matt Exp $ */ 2 3 /*- 4 * Copyright (c) 2005,2008 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Wasabi Systems, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* This file contains fsck support for wapbl 33 */ 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: wapbl.c,v 1.2.10.1 2010/04/21 05:26:34 matt Exp $"); 37 38 #include <sys/stat.h> 39 #include <sys/time.h> 40 #include <sys/uio.h> 41 42 #include <assert.h> 43 #include <errno.h> 44 #include <inttypes.h> 45 #include <stdio.h> 46 #include <stdbool.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <unistd.h> 50 51 #include <ufs/ufs/dinode.h> 52 #include <ufs/ufs/dir.h> 53 #include <ufs/ufs/ufs_bswap.h> 54 #include <ufs/ufs/ufs_wapbl.h> 55 #include <ufs/ffs/fs.h> 56 #include <ufs/ffs/ffs_extern.h> 57 58 #include <sys/wapbl.h> 59 60 #include "fsck.h" 61 #include "fsutil.h" 62 #include "extern.h" 63 #include "exitvalues.h" 64 65 int 66 wapbl_write(void *data, size_t len, struct vnode *devvp, daddr_t pbn) 67 { 68 69 WAPBL_PRINTF(WAPBL_PRINT_IO, 70 ("wapbl_write: %zd bytes at block %"PRId64" on fd 0x%x\n", 71 len, pbn, fswritefd)); 72 bwrite(fswritefd, data, pbn, len); 73 return 0; 74 } 75 76 int 77 wapbl_read(void *data, size_t len, struct vnode *devvp, daddr_t pbn) 78 { 79 80 WAPBL_PRINTF(WAPBL_PRINT_IO, 81 ("wapbl_read: %zd bytes at block %"PRId64" on fd 0x%x\n", 82 len, pbn, fsreadfd)); 83 bread(fsreadfd, data, pbn, len); 84 return 0; 85 } 86 87 struct wapbl_replay *wapbl_replay; 88 89 void 90 replay_wapbl(void) 91 { 92 int error; 93 94 if (!nflag) { 95 error = wapbl_replay_write(wapbl_replay, 0); 96 if (error) { 97 pfatal("UNABLE TO REPLAY JOURNAL BLOCKS"); 98 if (reply("CONTINUE") == 0) { 99 exit(FSCK_EXIT_CHECK_FAILED); 100 } 101 } else { 102 wapbl_replay_stop(wapbl_replay); 103 } 104 } 105 { 106 int i; 107 for (i = 0; i < wapbl_replay->wr_inodescnt; i++) { 108 WAPBL_PRINTF(WAPBL_PRINT_REPLAY,("wapbl_replay: " 109 "not cleaning inode %"PRIu32" mode %"PRIo32"\n", 110 wapbl_replay->wr_inodes[i].wr_inumber, 111 wapbl_replay->wr_inodes[i].wr_imode)); 112 } 113 } 114 } 115 116 void 117 cleanup_wapbl(void) 118 { 119 120 if (wapbl_replay) { 121 if (wapbl_replay_isopen(wapbl_replay)) 122 wapbl_replay_stop(wapbl_replay); 123 wapbl_replay_free(wapbl_replay); 124 wapbl_replay = 0; 125 } 126 } 127 128 int 129 read_wapbl(char *buf, long size, daddr_t blk) 130 { 131 132 if (!wapbl_replay || !wapbl_replay_isopen(wapbl_replay)) 133 return 0; 134 return wapbl_replay_read(wapbl_replay, buf, blk, size); 135 } 136 137 int 138 is_journal_inode(ino_t ino) 139 { 140 union dinode *dp; 141 142 dp = ginode(ino); 143 if ((iswap32(DIP(dp, flags)) & SF_LOG) != 0 && 144 sblock->fs_journal_version == UFS_WAPBL_VERSION && 145 sblock->fs_journal_location == UFS_WAPBL_JOURNALLOC_IN_FILESYSTEM && 146 sblock->fs_journallocs[UFS_WAPBL_INFS_INO] == ino) 147 return 1; 148 149 return 0; 150 } 151 152 int 153 check_wapbl(void) 154 { 155 uint64_t addr = 0, count = 0, blksize = 0; 156 int error; 157 int ret = 0; 158 if (debug) 159 wapbl_debug_print = WAPBL_PRINT_ERROR | WAPBL_PRINT_REPLAY; 160 if (debug > 1) 161 wapbl_debug_print |= WAPBL_PRINT_IO; 162 163 if (sblock->fs_flags & FS_DOWAPBL) { 164 if (sblock->fs_journal_version != UFS_WAPBL_VERSION) { 165 pfatal("INVALID JOURNAL VERSION %d", 166 sblock->fs_journal_version); 167 if (reply("CONTINUE") == 0) { 168 exit(FSCK_EXIT_CHECK_FAILED); 169 } 170 pwarn("CLEARING EXISTING JOURNAL\n"); 171 sblock->fs_flags &= ~FS_DOWAPBL; 172 sbdirty(); 173 ret = FSCK_EXIT_CHECK_FAILED; 174 } else { 175 switch(sblock->fs_journal_location) { 176 case UFS_WAPBL_JOURNALLOC_END_PARTITION: 177 addr = 178 sblock->fs_journallocs[UFS_WAPBL_EPART_ADDR]; 179 count = 180 sblock->fs_journallocs[UFS_WAPBL_EPART_COUNT]; 181 blksize = 182 sblock->fs_journallocs[UFS_WAPBL_EPART_BLKSZ]; 183 break; 184 case UFS_WAPBL_JOURNALLOC_IN_FILESYSTEM: 185 addr = 186 sblock->fs_journallocs[UFS_WAPBL_INFS_ADDR]; 187 count = 188 sblock->fs_journallocs[UFS_WAPBL_INFS_COUNT]; 189 blksize = 190 sblock->fs_journallocs[UFS_WAPBL_INFS_BLKSZ]; 191 break; 192 default: 193 pfatal("INVALID JOURNAL LOCATION %d", 194 sblock->fs_journal_location); 195 if (reply("CONTINUE") == 0) { 196 exit(FSCK_EXIT_CHECK_FAILED); 197 } 198 pwarn("CLEARING EXISTING JOURNAL\n"); 199 sblock->fs_flags &= ~FS_DOWAPBL; 200 sblock->fs_journal_location = 201 UFS_WAPBL_JOURNALLOC_NONE; 202 sbdirty(); 203 ret = FSCK_EXIT_CHECK_FAILED; 204 break; 205 } 206 if (sblock->fs_flags & FS_DOWAPBL) { 207 error = wapbl_replay_start( 208 &wapbl_replay, 0, addr, count, blksize); 209 if (error) { 210 pfatal( 211 "UNABLE TO READ JOURNAL FOR REPLAY"); 212 if (reply("CONTINUE") == 0) { 213 exit(FSCK_EXIT_CHECK_FAILED); 214 } 215 pwarn("CLEARING EXISTING JOURNAL\n"); 216 sblock->fs_flags &= ~FS_DOWAPBL; 217 sbdirty(); 218 ret = FSCK_EXIT_CHECK_FAILED; 219 } 220 } 221 } 222 } 223 /* 224 * at this time fs_journal_flags can only be 0, 225 * UFS_WAPBL_FLAGS_CREATE_LOG or UFS_WAPBL_FLAGS_CLEAR_LOG. 226 * We can't have both flags at the same time. 227 */ 228 switch (sblock->fs_journal_flags) { 229 case 0: 230 break; 231 case UFS_WAPBL_FLAGS_CREATE_LOG: 232 case UFS_WAPBL_FLAGS_CLEAR_LOG: 233 switch(sblock->fs_journal_location) { 234 case UFS_WAPBL_JOURNALLOC_END_PARTITION: 235 case UFS_WAPBL_JOURNALLOC_IN_FILESYSTEM: 236 break; 237 case UFS_WAPBL_JOURNALLOC_NONE: 238 if (sblock->fs_journal_flags == 239 UFS_WAPBL_FLAGS_CLEAR_LOG) 240 break; 241 /* FALLTHROUGH */ 242 default: 243 pfatal("INVALID JOURNAL LOCATION %d", 244 sblock->fs_journal_location); 245 if (reply("CONTINUE") == 0) { 246 exit(FSCK_EXIT_CHECK_FAILED); 247 } 248 pwarn("CLEARING JOURNAL FLAGS\n"); 249 sblock->fs_journal_flags = 0; 250 sblock->fs_journal_location = 251 UFS_WAPBL_JOURNALLOC_NONE; 252 sbdirty(); 253 ret = FSCK_EXIT_CHECK_FAILED; 254 break; 255 } 256 break; 257 default: 258 pfatal("INVALID JOURNAL FLAGS %d", 259 sblock->fs_journal_flags); 260 if (reply("CONTINUE") == 0) { 261 exit(FSCK_EXIT_CHECK_FAILED); 262 } 263 pwarn("CLEARING JOURNAL FLAGS\n"); 264 sblock->fs_journal_flags = 0; 265 sblock->fs_journal_location = 266 UFS_WAPBL_JOURNALLOC_NONE; 267 sbdirty(); 268 ret = FSCK_EXIT_CHECK_FAILED; 269 break; 270 } 271 return ret; 272 } 273
Indexes created Mon Oct 27 08:10:08 GMT 2025