1 /* 2 * Copyright (c) 1983, 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static const char copyright[] = 36 "@(#) Copyright (c) 1983, 1992, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)dumpfs.c 8.5 (Berkeley) 4/29/95"; 43 #endif 44 static const char rcsid[] = 45 "$Id$"; 46 #endif /* not lint */ 47 48 #include <sys/param.h> 49 #include <sys/time.h> 50 51 #include <ufs/ffs/fs.h> 52 53 #include <err.h> 54 #include <fcntl.h> 55 #include <fstab.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <unistd.h> 59 60 union { 61 struct fs fs; 62 char pad[MAXBSIZE]; 63 } fsun; 64 #define afs fsun.fs 65 66 union { 67 struct cg cg; 68 char pad[MAXBSIZE]; 69 } cgun; 70 #define acg cgun.cg 71 72 long dev_bsize = 1; 73 74 int dumpfs __P((char *)); 75 int dumpcg __P((char *, int, int)); 76 void pbits __P((void *, int)); 77 void usage __P((void)); 78 79 int 80 main(argc, argv) 81 int argc; 82 char *argv[]; 83 { 84 register struct fstab *fs; 85 int ch, eval; 86 87 while ((ch = getopt(argc, argv, "")) != -1) 88 switch(ch) { 89 case '?': 90 default: 91 usage(); 92 } 93 argc -= optind; 94 argv += optind; 95 96 if (argc < 1) 97 usage(); 98 99 for (eval = 0; *argv; ++argv) 100 if ((fs = getfsfile(*argv)) == NULL) 101 eval |= dumpfs(*argv); 102 else 103 eval |= dumpfs(fs->fs_spec); 104 exit(eval); 105 } 106 107 int 108 dumpfs(name) 109 char *name; 110 { 111 ssize_t n; 112 int fd, c, i, j, k, size; 113 114 if ((fd = open(name, O_RDONLY, 0)) < 0) 115 goto err; 116 if (lseek(fd, (off_t)SBOFF, SEEK_SET) == (off_t)-1) 117 goto err; 118 if ((n = read(fd, &afs, SBSIZE)) == -1) 119 goto err; 120 121 if (n != SBSIZE) { 122 warnx("%s: non-existent or truncated superblock, skipped", 123 name); 124 (void)close(fd); 125 return (1); 126 } 127 if (afs.fs_magic != FS_MAGIC) { 128 warnx("%s: superblock has bad magic number, skipped", name); 129 (void)close(fd); 130 return (1); 131 } 132 133 if (afs.fs_postblformat == FS_42POSTBLFMT) 134 afs.fs_nrpos = 8; 135 dev_bsize = afs.fs_fsize / fsbtodb(&afs, 1); 136 printf("magic\t%x\ttime\t%s", afs.fs_magic, 137 ctime(&afs.fs_time)); 138 printf("cylgrp\t%s\tinodes\t%s\n", 139 afs.fs_postblformat == FS_42POSTBLFMT ? "static" : "dynamic", 140 afs.fs_inodefmt < FS_44INODEFMT ? "4.2/4.3BSD" : "4.4BSD"); 141 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", 142 afs.fs_cstotal.cs_nbfree, afs.fs_cstotal.cs_ndir, 143 afs.fs_cstotal.cs_nifree, afs.fs_cstotal.cs_nffree); 144 printf("ncg\t%d\tncyl\t%d\tsize\t%d\tblocks\t%d\n", 145 afs.fs_ncg, afs.fs_ncyl, afs.fs_size, afs.fs_dsize); 146 printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n", 147 afs.fs_bsize, afs.fs_bshift, afs.fs_bmask); 148 printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n", 149 afs.fs_fsize, afs.fs_fshift, afs.fs_fmask); 150 printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n", 151 afs.fs_frag, afs.fs_fragshift, afs.fs_fsbtodb); 152 printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n", 153 afs.fs_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg); 154 printf("minfree\t%d%%\toptim\t%s\tmaxcontig %d\tmaxbpg\t%d\n", 155 afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time", 156 afs.fs_maxcontig, afs.fs_maxbpg); 157 printf("rotdelay %dms\trps\t%d\n", 158 afs.fs_rotdelay, afs.fs_rps); 159 printf("ntrak\t%d\tnsect\t%d\tnpsect\t%d\tspc\t%d\n", 160 afs.fs_ntrak, afs.fs_nsect, afs.fs_npsect, afs.fs_spc); 161 printf("symlinklen %d\ttrackskew %d\tinterleave %d\tcontigsumsize %d\n", 162 afs.fs_maxsymlinklen, afs.fs_trackskew, afs.fs_interleave, 163 afs.fs_contigsumsize); 164 printf("nindir\t%d\tinopb\t%d\tnspf\t%d\tmaxfilesize\t%qu\n", 165 afs.fs_nindir, afs.fs_inopb, afs.fs_nspf, afs.fs_maxfilesize); 166 printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n", 167 afs.fs_sblkno, afs.fs_cblkno, afs.fs_iblkno, afs.fs_dblkno); 168 printf("sbsize\t%d\tcgsize\t%d\tcgoffset %d\tcgmask\t0x%08x\n", 169 afs.fs_sbsize, afs.fs_cgsize, afs.fs_cgoffset, afs.fs_cgmask); 170 printf("csaddr\t%d\tcssize\t%d\tshift\t%d\tmask\t0x%08x\n", 171 afs.fs_csaddr, afs.fs_cssize, afs.fs_csshift, afs.fs_csmask); 172 printf("cgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t%d\n", 173 afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly, afs.fs_clean); 174 if (afs.fs_cpc != 0) 175 printf("blocks available in each of %d rotational positions", 176 afs.fs_nrpos); 177 else 178 printf("(no rotational position table)\n"); 179 for (c = 0; c < afs.fs_cpc; c++) { 180 printf("\ncylinder number %d:", c); 181 for (i = 0; i < afs.fs_nrpos; i++) { 182 if (fs_postbl(&afs, c)[i] == -1) 183 continue; 184 printf("\n position %d:\t", i); 185 for (j = fs_postbl(&afs, c)[i], k = 1; ; 186 j += fs_rotbl(&afs)[j], k++) { 187 printf("%5d", j); 188 if (k % 12 == 0) 189 printf("\n\t\t"); 190 if (fs_rotbl(&afs)[j] == 0) 191 break; 192 } 193 } 194 } 195 printf("\ncs[].cs_(nbfree,ndir,nifree,nffree):\n\t"); 196 for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) { 197 size = afs.fs_cssize - i < afs.fs_bsize ? 198 afs.fs_cssize - i : afs.fs_bsize; 199 afs.fs_csp[j] = calloc(1, size); 200 if (lseek(fd, 201 (off_t)(fsbtodb(&afs, (afs.fs_csaddr + j * afs.fs_frag))) * 202 (off_t)dev_bsize, SEEK_SET) == (off_t)-1) 203 goto err; 204 if (read(fd, afs.fs_csp[j], size) != size) 205 goto err; 206 } 207 for (i = 0; i < afs.fs_ncg; i++) { 208 struct csum *cs = &afs.fs_cs(&afs, i); 209 if (i && i % 4 == 0) 210 printf("\n\t"); 211 printf("(%d,%d,%d,%d) ", 212 cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree); 213 } 214 printf("\n"); 215 if (afs.fs_ncyl % afs.fs_cpg) { 216 printf("cylinders in last group %d\n", 217 i = afs.fs_ncyl % afs.fs_cpg); 218 printf("blocks in last group %d\n", 219 i * afs.fs_spc / NSPB(&afs)); 220 } 221 printf("\n"); 222 for (i = 0; i < afs.fs_ncg; i++) 223 if (dumpcg(name, fd, i)) 224 goto err; 225 (void)close(fd); 226 return (0); 227 228 err: if (fd != -1) 229 (void)close(fd); 230 warn("%s", name); 231 return (1); 232 }; 233 234 int 235 dumpcg(name, fd, c) 236 char *name; 237 int fd, c; 238 { 239 off_t cur; 240 int i, j; 241 242 printf("\ncg %d:\n", c); 243 if ((cur = lseek(fd, (off_t)(fsbtodb(&afs, cgtod(&afs, c))) * 244 (off_t)dev_bsize, SEEK_SET)) == (off_t)-1) 245 return (1); 246 if (read(fd, &acg, afs.fs_bsize) != afs.fs_bsize) { 247 warnx("%s: error reading cg", name); 248 return (1); 249 } 250 printf("magic\t%x\ttell\t%qx\ttime\t%s", 251 afs.fs_postblformat == FS_42POSTBLFMT ? 252 ((struct ocg *)&acg)->cg_magic : acg.cg_magic, 253 cur, ctime(&acg.cg_time)); 254 printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n", 255 acg.cg_cgx, acg.cg_ncyl, acg.cg_niblk, acg.cg_ndblk); 256 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", 257 acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir, 258 acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree); 259 printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum", 260 acg.cg_rotor, acg.cg_irotor, acg.cg_frotor); 261 for (i = 1, j = 0; i < afs.fs_frag; i++) { 262 printf("\t%d", acg.cg_frsum[i]); 263 j += i * acg.cg_frsum[i]; 264 } 265 printf("\nsum of frsum: %d", j); 266 if (afs.fs_contigsumsize > 0) { 267 for (i = 1; i < afs.fs_contigsumsize; i++) { 268 if ((i - 1) % 8 == 0) 269 printf("\nclusters %d-%d:", i, 270 afs.fs_contigsumsize - 1 < i + 7 ? 271 afs.fs_contigsumsize - 1 : i + 7); 272 printf("\t%d", cg_clustersum(&acg)[i]); 273 } 274 printf("\nclusters size %d and over: %d\n", 275 afs.fs_contigsumsize, 276 cg_clustersum(&acg)[afs.fs_contigsumsize]); 277 printf("clusters free:\t"); 278 pbits(cg_clustersfree(&acg), acg.cg_nclusterblks); 279 } else 280 printf("\n"); 281 printf("iused:\t"); 282 pbits(cg_inosused(&acg), afs.fs_ipg); 283 printf("free:\t"); 284 pbits(cg_blksfree(&acg), afs.fs_fpg); 285 printf("b:\n"); 286 for (i = 0; i < afs.fs_cpg; i++) { 287 if (cg_blktot(&acg)[i] == 0) 288 continue; 289 printf(" c%d:\t(%d)\t", i, cg_blktot(&acg)[i]); 290 for (j = 0; j < afs.fs_nrpos; j++) { 291 if (afs.fs_cpc > 0 && 292 fs_postbl(&afs, i % afs.fs_cpc)[j] == -1) 293 continue; 294 printf(" %d", cg_blks(&afs, &acg, i)[j]); 295 } 296 printf("\n"); 297 } 298 return (0); 299 }; 300 301 void 302 pbits(vp, max) 303 register void *vp; 304 int max; 305 { 306 register int i; 307 register char *p; 308 int count, j; 309 310 for (count = i = 0, p = vp; i < max; i++) 311 if (isset(p, i)) { 312 if (count) 313 printf(",%s", count % 6 ? " " : "\n\t"); 314 count++; 315 printf("%d", i); 316 j = i; 317 while ((i+1)<max && isset(p, i+1)) 318 i++; 319 if (i != j) 320 printf("-%d", i); 321 } 322 printf("\n"); 323 } 324 325 void 326 usage() 327 { 328 (void)fprintf(stderr, "usage: dumpfs filesys | device\n"); 329 exit(1); 330 } 331