1 /* $NetBSD: wapbl.c,v 1.6 2022/07/25 05:15:08 dholland 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 #define WAPBL_INTERNAL 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: wapbl.c,v 1.6 2022/07/25 05:15:08 dholland Exp $"); 38 39 #include <sys/stat.h> 40 #include <sys/time.h> 41 #include <sys/uio.h> 42 43 #include <assert.h> 44 #include <errno.h> 45 #include <inttypes.h> 46 #include <stdio.h> 47 #include <stdbool.h> 48 #include <stdlib.h> 49 #include <string.h> 50 #include <unistd.h> 51 52 #include <ufs/ufs/dinode.h> 53 #include <ufs/ufs/dir.h> 54 #include <ufs/ufs/ufs_bswap.h> 55 #include <ufs/ufs/ufs_wapbl.h> 56 #include <ufs/ffs/fs.h> 57 #include <ufs/ffs/ffs_extern.h> 58 59 #include <sys/wapbl.h> 60 61 #include "fsck.h" 62 #include "fsutil.h" 63 #include "extern.h" 64 #include "exitvalues.h" 65 66 int 67 wapbl_write(void *data, size_t len, struct vnode *devvp, daddr_t pbn) 68 { 69 70 WAPBL_PRINTF(WAPBL_PRINT_IO, 71 ("wapbl_write: %zd bytes at block %"PRId64" on fd 0x%x\n", 72 len, pbn, fswritefd)); 73 bwrite(fswritefd, data, pbn, len); 74 return 0; 75 } 76 77 int 78 wapbl_read(void *data, size_t len, struct vnode *devvp, daddr_t pbn) 79 { 80 81 WAPBL_PRINTF(WAPBL_PRINT_IO, 82 ("wapbl_read: %zd bytes at block %"PRId64" on fd 0x%x\n", 83 len, pbn, fsreadfd)); 84 bread(fsreadfd, data, pbn, len); 85 return 0; 86 } 87 88 struct wapbl_replay *wapbl_replay; 89 90 void 91 replay_wapbl(void) 92 { 93 int error; 94 95 if (nflag) { 96 /* 97 * XXX: we ought to have a mode where we can replay 98 * the journal to memory, similar to what happens in 99 * the kernel with a readonly mount. For now though 100 * just print that we aren't doing it so as to avoid 101 * lying to the user. 102 */ 103 pwarn("CANNOT REPLAY JOURNAL IN -n MODE; continuing anyway\n"); 104 } else { 105 error = wapbl_replay_write(wapbl_replay, 0); 106 if (error) { 107 pfatal("UNABLE TO REPLAY JOURNAL BLOCKS"); 108 if (reply("CONTINUE") == 0) { 109 exit(FSCK_EXIT_CHECK_FAILED); 110 } 111 } else { 112 wapbl_replay_stop(wapbl_replay); 113 } 114 } 115 { 116 int i; 117 for (i = 0; i < wapbl_replay->wr_inodescnt; i++) { 118 WAPBL_PRINTF(WAPBL_PRINT_REPLAY,("wapbl_replay: " 119 "not cleaning inode %"PRIu32" mode %"PRIo32"\n", 120 wapbl_replay->wr_inodes[i].wr_inumber, 121 wapbl_replay->wr_inodes[i].wr_imode)); 122 } 123 } 124 } 125 126 void 127 cleanup_wapbl(void) 128 { 129 130 if (wapbl_replay) { 131 if (wapbl_replay_isopen(wapbl_replay)) 132 wapbl_replay_stop(wapbl_replay); 133 wapbl_replay_free(wapbl_replay); 134 wapbl_replay = 0; 135 } 136 } 137 138 int 139 read_wapbl(char *buf, long size, daddr_t blk) 140 { 141 142 if (!wapbl_replay || !wapbl_replay_isopen(wapbl_replay)) 143 return 0; 144 return wapbl_replay_read(wapbl_replay, buf, blk, size); 145 } 146 147 int 148 is_journal_inode(ino_t ino) 149 { 150 union dinode *dp; 151 152 dp = ginode(ino); 153 if ((iswap32(DIP(dp, flags)) & SF_LOG) != 0 && 154 sblock->fs_journal_version == UFS_WAPBL_VERSION && 155 sblock->fs_journal_location == UFS_WAPBL_JOURNALLOC_IN_FILESYSTEM && 156 sblock->fs_journallocs[UFS_WAPBL_INFS_INO] == ino) 157 return 1; 158 159 return 0; 160 } 161 162 int 163 check_wapbl(void) 164 { 165 uint64_t addr = 0, count = 0, blksize = 0; 166 int error; 167 int ret = 0; 168 if (debug) 169 wapbl_debug_print = WAPBL_PRINT_ERROR | WAPBL_PRINT_REPLAY; 170 if (debug > 1) 171 wapbl_debug_print |= WAPBL_PRINT_IO; 172 173 if (sblock->fs_flags & FS_DOWAPBL) { 174 if (sblock->fs_journal_version != UFS_WAPBL_VERSION) { 175 pfatal("INVALID JOURNAL VERSION %d", 176 sblock->fs_journal_version); 177 if (reply("CONTINUE") == 0) { 178 exit(FSCK_EXIT_CHECK_FAILED); 179 } 180 pwarn("CLEARING EXISTING JOURNAL\n"); 181 sblock->fs_flags &= ~FS_DOWAPBL; 182 sblock->fs_journal_flags = UFS_WAPBL_FLAGS_CLEAR_LOG; 183 sbdirty(); 184 ret = FSCK_EXIT_CHECK_FAILED; 185 } else { 186 switch(sblock->fs_journal_location) { 187 case UFS_WAPBL_JOURNALLOC_END_PARTITION: 188 addr = 189 sblock->fs_journallocs[UFS_WAPBL_EPART_ADDR]; 190 count = 191 sblock->fs_journallocs[UFS_WAPBL_EPART_COUNT]; 192 blksize = 193 sblock->fs_journallocs[UFS_WAPBL_EPART_BLKSZ]; 194 break; 195 case UFS_WAPBL_JOURNALLOC_IN_FILESYSTEM: 196 addr = 197 sblock->fs_journallocs[UFS_WAPBL_INFS_ADDR]; 198 count = 199 sblock->fs_journallocs[UFS_WAPBL_INFS_COUNT]; 200 blksize = 201 sblock->fs_journallocs[UFS_WAPBL_INFS_BLKSZ]; 202 break; 203 default: 204 pfatal("INVALID JOURNAL LOCATION %d", 205 sblock->fs_journal_location); 206 if (reply("CONTINUE") == 0) { 207 exit(FSCK_EXIT_CHECK_FAILED); 208 } 209 pwarn("CLEARING EXISTING JOURNAL\n"); 210 sblock->fs_flags &= ~FS_DOWAPBL; 211 sblock->fs_journal_flags = UFS_WAPBL_FLAGS_CLEAR_LOG; 212 sblock->fs_journal_location = 213 UFS_WAPBL_JOURNALLOC_NONE; 214 sbdirty(); 215 ret = FSCK_EXIT_CHECK_FAILED; 216 break; 217 } 218 if (sblock->fs_flags & FS_DOWAPBL) { 219 error = wapbl_replay_start( 220 &wapbl_replay, 0, addr, count, blksize); 221 if (error) { 222 pfatal( 223 "UNABLE TO READ JOURNAL FOR REPLAY"); 224 if (reply("CONTINUE") == 0) { 225 exit(FSCK_EXIT_CHECK_FAILED); 226 } 227 pwarn("CLEARING EXISTING JOURNAL\n"); 228 sblock->fs_flags &= ~FS_DOWAPBL; 229 sblock->fs_journal_flags = UFS_WAPBL_FLAGS_CLEAR_LOG; 230 sbdirty(); 231 ret = FSCK_EXIT_CHECK_FAILED; 232 } 233 } 234 } 235 } 236 /* 237 * at this time fs_journal_flags can only be 0, 238 * UFS_WAPBL_FLAGS_CREATE_LOG or UFS_WAPBL_FLAGS_CLEAR_LOG. 239 * We can't have both flags at the same time. 240 */ 241 switch (sblock->fs_journal_flags) { 242 case 0: 243 break; 244 case UFS_WAPBL_FLAGS_CREATE_LOG: 245 case UFS_WAPBL_FLAGS_CLEAR_LOG: 246 switch(sblock->fs_journal_location) { 247 case UFS_WAPBL_JOURNALLOC_END_PARTITION: 248 case UFS_WAPBL_JOURNALLOC_IN_FILESYSTEM: 249 break; 250 case UFS_WAPBL_JOURNALLOC_NONE: 251 if (sblock->fs_journal_flags == 252 UFS_WAPBL_FLAGS_CLEAR_LOG) 253 break; 254 /* FALLTHROUGH */ 255 default: 256 pfatal("INVALID JOURNAL LOCATION %d", 257 sblock->fs_journal_location); 258 if (reply("CONTINUE") == 0) { 259 exit(FSCK_EXIT_CHECK_FAILED); 260 } 261 pwarn("CLEARING JOURNAL FLAGS\n"); 262 sblock->fs_journal_flags = 0; 263 sblock->fs_journal_location = 264 UFS_WAPBL_JOURNALLOC_NONE; 265 sbdirty(); 266 ret = FSCK_EXIT_CHECK_FAILED; 267 break; 268 } 269 break; 270 default: 271 pfatal("INVALID JOURNAL FLAGS %d", 272 sblock->fs_journal_flags); 273 if (reply("CONTINUE") == 0) { 274 exit(FSCK_EXIT_CHECK_FAILED); 275 } 276 pwarn("CLEARING JOURNAL FLAGS\n"); 277 sblock->fs_journal_flags = 0; 278 sblock->fs_journal_location = 279 UFS_WAPBL_JOURNALLOC_NONE; 280 sbdirty(); 281 ret = FSCK_EXIT_CHECK_FAILED; 282 break; 283 } 284 return ret; 285 } 286
Indexes created Sat Sep 20 22:09:52 GMT 2025