1 /* 2 * Copyright (c) 1983, 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char copyright[] = 10 "@(#) Copyright (c) 1983, 1992, 1993\n\ 11 The Regents of the University of California. All rights reserved.\n"; 12 #endif /* not lint */ 13 14 #ifndef lint 15 static char sccsid[] = "@(#)dumpfs.c 8.5 (Berkeley) 04/29/95"; 16 #endif /* not lint */ 17 18 #include <sys/param.h> 19 #include <sys/time.h> 20 21 #include <ufs/ufs/dinode.h> 22 #include <ufs/ffs/fs.h> 23 24 #include <err.h> 25 #include <errno.h> 26 #include <fcntl.h> 27 #include <fstab.h> 28 #include <stdio.h> 29 #include <stdlib.h> 30 #include <string.h> 31 #include <unistd.h> 32 33 union { 34 struct fs fs; 35 char pad[MAXBSIZE]; 36 } fsun; 37 #define afs fsun.fs 38 39 union { 40 struct cg cg; 41 char pad[MAXBSIZE]; 42 } cgun; 43 #define acg cgun.cg 44 45 long dev_bsize = 1; 46 47 int dumpfs __P((char *)); 48 int dumpcg __P((char *, int, int)); 49 void pbits __P((void *, int)); 50 void usage __P((void)); 51 52 int 53 main(argc, argv) 54 int argc; 55 char *argv[]; 56 { 57 register struct fstab *fs; 58 int ch, eval; 59 60 while ((ch = getopt(argc, argv, "")) != -1) 61 switch(ch) { 62 case '?': 63 default: 64 usage(); 65 } 66 argc -= optind; 67 argv += optind; 68 69 if (argc < 1) 70 usage(); 71 72 for (eval = 0; *argv; ++argv) 73 if ((fs = getfsfile(*argv)) == NULL) 74 eval |= dumpfs(*argv); 75 else 76 eval |= dumpfs(fs->fs_spec); 77 exit(eval); 78 } 79 80 int 81 dumpfs(name) 82 char *name; 83 { 84 int fd, c, i, j, k, size; 85 86 if ((fd = open(name, O_RDONLY, 0)) < 0) 87 goto err; 88 if (lseek(fd, (off_t)SBOFF, SEEK_SET) == (off_t)-1) 89 goto err; 90 if (read(fd, &afs, SBSIZE) != SBSIZE) 91 goto err; 92 93 if (afs.fs_magic != FS_MAGIC) { 94 warnx("%s: superblock has bad magic number, skipped", name); 95 (void)close(fd); 96 return (1); 97 } 98 99 if (afs.fs_postblformat == FS_42POSTBLFMT) 100 afs.fs_nrpos = 8; 101 dev_bsize = afs.fs_fsize / fsbtodb(&afs, 1); 102 printf("magic\t%x\ttime\t%s", afs.fs_magic, 103 ctime(&afs.fs_time)); 104 printf("cylgrp\t%s\tinodes\t%s\n", 105 afs.fs_postblformat == FS_42POSTBLFMT ? "static" : "dynamic", 106 afs.fs_inodefmt < FS_44INODEFMT ? "4.2/4.3BSD" : "4.4BSD"); 107 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", 108 afs.fs_cstotal.cs_nbfree, afs.fs_cstotal.cs_ndir, 109 afs.fs_cstotal.cs_nifree, afs.fs_cstotal.cs_nffree); 110 printf("ncg\t%d\tncyl\t%d\tsize\t%d\tblocks\t%d\n", 111 afs.fs_ncg, afs.fs_ncyl, afs.fs_size, afs.fs_dsize); 112 printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n", 113 afs.fs_bsize, afs.fs_bshift, afs.fs_bmask); 114 printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n", 115 afs.fs_fsize, afs.fs_fshift, afs.fs_fmask); 116 printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n", 117 afs.fs_frag, afs.fs_fragshift, afs.fs_fsbtodb); 118 printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n", 119 afs.fs_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg); 120 printf("minfree\t%d%%\toptim\t%s\tmaxcontig %d\tmaxbpg\t%d\n", 121 afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time", 122 afs.fs_maxcontig, afs.fs_maxbpg); 123 printf("rotdelay %dms\theadswitch %dus\ttrackseek %dus\trps\t%d\n", 124 afs.fs_rotdelay, afs.fs_headswitch, afs.fs_trkseek, afs.fs_rps); 125 printf("ntrak\t%d\tnsect\t%d\tnpsect\t%d\tspc\t%d\n", 126 afs.fs_ntrak, afs.fs_nsect, afs.fs_npsect, afs.fs_spc); 127 printf("symlinklen %d\ttrackskew %d\tinterleave %d\tcontigsumsize %d\n", 128 afs.fs_maxsymlinklen, afs.fs_trackskew, afs.fs_interleave, 129 afs.fs_contigsumsize); 130 printf("nindir\t%d\tinopb\t%d\tnspf\t%d\n", 131 afs.fs_nindir, afs.fs_inopb, afs.fs_nspf); 132 printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n", 133 afs.fs_sblkno, afs.fs_cblkno, afs.fs_iblkno, afs.fs_dblkno); 134 printf("sbsize\t%d\tcgsize\t%d\tcgoffset %d\tcgmask\t0x%08x\n", 135 afs.fs_sbsize, afs.fs_cgsize, afs.fs_cgoffset, afs.fs_cgmask); 136 printf("csaddr\t%d\tcssize\t%d\tshift\t%d\tmask\t0x%08x\n", 137 afs.fs_csaddr, afs.fs_cssize, afs.fs_csshift, afs.fs_csmask); 138 printf("cgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t%d\n", 139 afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly, afs.fs_clean); 140 if (afs.fs_cpc != 0) 141 printf("blocks available in each of %d rotational positions", 142 afs.fs_nrpos); 143 else 144 printf("(no rotational position table)\n"); 145 for (c = 0; c < afs.fs_cpc; c++) { 146 printf("\ncylinder number %d:", c); 147 for (i = 0; i < afs.fs_nrpos; i++) { 148 if (fs_postbl(&afs, c)[i] == -1) 149 continue; 150 printf("\n position %d:\t", i); 151 for (j = fs_postbl(&afs, c)[i], k = 1; ; 152 j += fs_rotbl(&afs)[j], k++) { 153 printf("%5d", j); 154 if (k % 12 == 0) 155 printf("\n\t\t"); 156 if (fs_rotbl(&afs)[j] == 0) 157 break; 158 } 159 } 160 } 161 printf("\ncs[].cs_(nbfree,ndir,nifree,nffree):\n\t"); 162 for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) { 163 size = afs.fs_cssize - i < afs.fs_bsize ? 164 afs.fs_cssize - i : afs.fs_bsize; 165 afs.fs_csp[j] = calloc(1, size); 166 if (lseek(fd, 167 (off_t)(fsbtodb(&afs, (afs.fs_csaddr + j * afs.fs_frag)) * 168 dev_bsize), SEEK_SET) == (off_t)-1) 169 goto err; 170 if (read(fd, afs.fs_csp[j], size) != size) 171 goto err; 172 } 173 for (i = 0; i < afs.fs_ncg; i++) { 174 struct csum *cs = &afs.fs_cs(&afs, i); 175 if (i && i % 4 == 0) 176 printf("\n\t"); 177 printf("(%d,%d,%d,%d) ", 178 cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree); 179 } 180 printf("\n"); 181 if (afs.fs_ncyl % afs.fs_cpg) { 182 printf("cylinders in last group %d\n", 183 i = afs.fs_ncyl % afs.fs_cpg); 184 printf("blocks in last group %d\n", 185 i * afs.fs_spc / NSPB(&afs)); 186 } 187 printf("\n"); 188 for (i = 0; i < afs.fs_ncg; i++) 189 if (dumpcg(name, fd, i)) 190 goto err; 191 (void)close(fd); 192 return (0); 193 194 err: if (fd != -1) 195 (void)close(fd); 196 warn("%s", name); 197 return (1); 198 }; 199 200 int 201 dumpcg(name, fd, c) 202 char *name; 203 int fd, c; 204 { 205 off_t cur; 206 int i, j; 207 208 printf("\ncg %d:\n", c); 209 if ((cur = lseek(fd, (off_t)(fsbtodb(&afs, cgtod(&afs, c)) * dev_bsize), 210 SEEK_SET)) == (off_t)-1) 211 return (1); 212 if (read(fd, &acg, afs.fs_bsize) != afs.fs_bsize) { 213 warnx("%s: error reading cg", name); 214 return (1); 215 } 216 printf("magic\t%x\ttell\t%qx\ttime\t%s", 217 afs.fs_postblformat == FS_42POSTBLFMT ? 218 ((struct ocg *)&acg)->cg_magic : acg.cg_magic, 219 cur, ctime(&acg.cg_time)); 220 printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n", 221 acg.cg_cgx, acg.cg_ncyl, acg.cg_niblk, acg.cg_ndblk); 222 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", 223 acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir, 224 acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree); 225 printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum", 226 acg.cg_rotor, acg.cg_irotor, acg.cg_frotor); 227 for (i = 1, j = 0; i < afs.fs_frag; i++) { 228 printf("\t%d", acg.cg_frsum[i]); 229 j += i * acg.cg_frsum[i]; 230 } 231 printf("\nsum of frsum: %d", j); 232 if (afs.fs_contigsumsize > 0) { 233 for (i = 1; i < afs.fs_contigsumsize; i++) { 234 if ((i - 1) % 8 == 0) 235 printf("\nclusters %d-%d:", i, 236 afs.fs_contigsumsize - 1 < i + 7 ? 237 afs.fs_contigsumsize - 1 : i + 7); 238 printf("\t%d", cg_clustersum(&acg)[i]); 239 } 240 printf("\nclusters size %d and over: %d\n", 241 afs.fs_contigsumsize, 242 cg_clustersum(&acg)[afs.fs_contigsumsize]); 243 printf("clusters free:\t"); 244 pbits(cg_clustersfree(&acg), acg.cg_nclusterblks); 245 } else 246 printf("\n"); 247 printf("iused:\t"); 248 pbits(cg_inosused(&acg), afs.fs_ipg); 249 printf("free:\t"); 250 pbits(cg_blksfree(&acg), afs.fs_fpg); 251 printf("b:\n"); 252 for (i = 0; i < afs.fs_cpg; i++) { 253 if (cg_blktot(&acg)[i] == 0) 254 continue; 255 printf(" c%d:\t(%d)\t", i, cg_blktot(&acg)[i]); 256 for (j = 0; j < afs.fs_nrpos; j++) { 257 if (afs.fs_cpc > 0 && 258 fs_postbl(&afs, i % afs.fs_cpc)[j] == -1) 259 continue; 260 printf(" %d", cg_blks(&afs, &acg, i)[j]); 261 } 262 printf("\n"); 263 } 264 return (0); 265 }; 266 267 void 268 pbits(vp, max) 269 register void *vp; 270 int max; 271 { 272 register int i; 273 register char *p; 274 int count, j; 275 276 for (count = i = 0, p = vp; i < max; i++) 277 if (isset(p, i)) { 278 if (count) 279 printf(",%s", count % 6 ? " " : "\n\t"); 280 count++; 281 printf("%d", i); 282 j = i; 283 while ((i+1)<max && isset(p, i+1)) 284 i++; 285 if (i != j) 286 printf("-%d", i); 287 } 288 printf("\n"); 289 } 290 291 void 292 usage() 293 { 294 (void)fprintf(stderr, "usage: dumpfs filesys | device\n"); 295 exit(1); 296 } 297