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 8.3 (Berkeley) 04/28/95"; 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_postblformat == FS_42POSTBLFMT) 94 afs.fs_nrpos = 8; 95 dev_bsize = afs.fs_fsize / fsbtodb(&afs, 1); 96 printf("magic\t%x\ttime\t%s", afs.fs_magic, 97 ctime(&afs.fs_time)); 98 printf("cylgrp\t%s\tinodes\t%s\n", 99 afs.fs_postblformat == FS_42POSTBLFMT ? "static" : "dynamic", 100 afs.fs_inodefmt < FS_44INODEFMT ? "4.2/4.3BSD" : "4.4BSD"); 101 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", 102 afs.fs_cstotal.cs_nbfree, afs.fs_cstotal.cs_ndir, 103 afs.fs_cstotal.cs_nifree, afs.fs_cstotal.cs_nffree); 104 printf("ncg\t%d\tncyl\t%d\tsize\t%d\tblocks\t%d\n", 105 afs.fs_ncg, afs.fs_ncyl, afs.fs_size, afs.fs_dsize); 106 printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n", 107 afs.fs_bsize, afs.fs_bshift, afs.fs_bmask); 108 printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n", 109 afs.fs_fsize, afs.fs_fshift, afs.fs_fmask); 110 printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n", 111 afs.fs_frag, afs.fs_fragshift, afs.fs_fsbtodb); 112 printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n", 113 afs.fs_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg); 114 printf("minfree\t%d%%\toptim\t%s\tmaxcontig %d\tmaxbpg\t%d\n", 115 afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time", 116 afs.fs_maxcontig, afs.fs_maxbpg); 117 printf("rotdelay %dms\theadswitch %dus\ttrackseek %dus\trps\t%d\n", 118 afs.fs_rotdelay, afs.fs_headswitch, afs.fs_trkseek, afs.fs_rps); 119 printf("ntrak\t%d\tnsect\t%d\tnpsect\t%d\tspc\t%d\n", 120 afs.fs_ntrak, afs.fs_nsect, afs.fs_npsect, afs.fs_spc); 121 printf("symlinklen %d\ttrackskew %d\tinterleave %d\tcontigsumsize %d\n", 122 afs.fs_maxsymlinklen, afs.fs_trackskew, afs.fs_interleave, 123 afs.fs_contigsumsize); 124 printf("nindir\t%d\tinopb\t%d\tnspf\t%d\n", 125 afs.fs_nindir, afs.fs_inopb, afs.fs_nspf); 126 printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n", 127 afs.fs_sblkno, afs.fs_cblkno, afs.fs_iblkno, afs.fs_dblkno); 128 printf("sbsize\t%d\tcgsize\t%d\tcgoffset %d\tcgmask\t0x%08x\n", 129 afs.fs_sbsize, afs.fs_cgsize, afs.fs_cgoffset, afs.fs_cgmask); 130 printf("csaddr\t%d\tcssize\t%d\tshift\t%d\tmask\t0x%08x\n", 131 afs.fs_csaddr, afs.fs_cssize, afs.fs_csshift, afs.fs_csmask); 132 printf("cgrotor\t%d\tfmod\t%d\tronly\t%d\n", 133 afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly); 134 if (afs.fs_cpc != 0) 135 printf("blocks available in each of %d rotational positions", 136 afs.fs_nrpos); 137 else 138 printf("insufficient space to maintain rotational tables\n"); 139 for (c = 0; c < afs.fs_cpc; c++) { 140 printf("\ncylinder number %d:", c); 141 for (i = 0; i < afs.fs_nrpos; i++) { 142 if (fs_postbl(&afs, c)[i] == -1) 143 continue; 144 printf("\n position %d:\t", i); 145 for (j = fs_postbl(&afs, c)[i], k = 1; ; 146 j += fs_rotbl(&afs)[j], k++) { 147 printf("%5d", j); 148 if (k % 12 == 0) 149 printf("\n\t\t"); 150 if (fs_rotbl(&afs)[j] == 0) 151 break; 152 } 153 } 154 } 155 printf("\ncs[].cs_(nbfree,ndir,nifree,nffree):\n\t"); 156 for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) { 157 size = afs.fs_cssize - i < afs.fs_bsize ? 158 afs.fs_cssize - i : afs.fs_bsize; 159 afs.fs_csp[j] = calloc(1, size); 160 if (lseek(fd, 161 (off_t)(fsbtodb(&afs, (afs.fs_csaddr + j * afs.fs_frag)) * 162 dev_bsize), SEEK_SET) == (off_t)-1) 163 goto err; 164 if (read(fd, afs.fs_csp[j], size) != size) 165 goto err; 166 } 167 for (i = 0; i < afs.fs_ncg; i++) { 168 struct csum *cs = &afs.fs_cs(&afs, i); 169 if (i && i % 4 == 0) 170 printf("\n\t"); 171 printf("(%d,%d,%d,%d) ", 172 cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree); 173 } 174 printf("\n"); 175 if (afs.fs_ncyl % afs.fs_cpg) { 176 printf("cylinders in last group %d\n", 177 i = afs.fs_ncyl % afs.fs_cpg); 178 printf("blocks in last group %d\n", 179 i * afs.fs_spc / NSPB(&afs)); 180 } 181 printf("\n"); 182 for (i = 0; i < afs.fs_ncg; i++) 183 if (dumpcg(name, fd, i)) 184 goto err; 185 (void)close(fd); 186 return (0); 187 188 err: if (fd != -1) 189 (void)close(fd); 190 warn("%s", name); 191 return (1); 192 }; 193 194 int 195 dumpcg(name, fd, c) 196 char *name; 197 int fd, c; 198 { 199 off_t cur; 200 int i, j; 201 202 printf("\ncg %d:\n", c); 203 if ((cur = lseek(fd, (off_t)(fsbtodb(&afs, cgtod(&afs, c)) * dev_bsize), 204 SEEK_SET)) == (off_t)-1) 205 return (1); 206 if (read(fd, &acg, afs.fs_bsize) != afs.fs_bsize) { 207 warnx("%s: error reading cg", name); 208 return (1); 209 } 210 printf("magic\t%x\ttell\t%qx\ttime\t%s", 211 afs.fs_postblformat == FS_42POSTBLFMT ? 212 ((struct ocg *)&acg)->cg_magic : acg.cg_magic, 213 cur, ctime(&acg.cg_time)); 214 printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n", 215 acg.cg_cgx, acg.cg_ncyl, acg.cg_niblk, acg.cg_ndblk); 216 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", 217 acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir, 218 acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree); 219 printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum", 220 acg.cg_rotor, acg.cg_irotor, acg.cg_frotor); 221 for (i = 1, j = 0; i < afs.fs_frag; i++) { 222 printf("\t%d", acg.cg_frsum[i]); 223 j += i * acg.cg_frsum[i]; 224 } 225 printf("\nsum of frsum: %d", j); 226 if (afs.fs_contigsumsize > 0) { 227 for (i = 1; i < afs.fs_contigsumsize; i++) { 228 if ((i - 1) % 8 == 0) 229 printf("\nclusters %d-%d:", i, 230 afs.fs_contigsumsize - 1 < i + 7 ? 231 afs.fs_contigsumsize - 1 : i + 7); 232 printf("\t%d", cg_clustersum(&acg)[i]); 233 } 234 printf("\nclusters size %d and over: %d\n", 235 afs.fs_contigsumsize, 236 cg_clustersum(&acg)[afs.fs_contigsumsize]); 237 printf("clusters free:\t"); 238 pbits(cg_clustersfree(&acg), acg.cg_nclusterblks); 239 } else 240 printf("\n"); 241 printf("iused:\t"); 242 pbits(cg_inosused(&acg), afs.fs_ipg); 243 printf("free:\t"); 244 pbits(cg_blksfree(&acg), afs.fs_fpg); 245 printf("b:\n"); 246 for (i = 0; i < afs.fs_cpg; i++) { 247 if (cg_blktot(&acg)[i] == 0) 248 continue; 249 printf(" c%d:\t(%d)\t", i, cg_blktot(&acg)[i]); 250 for (j = 0; j < afs.fs_nrpos; j++) { 251 if (afs.fs_cpc > 0 && 252 fs_postbl(&afs, i % afs.fs_cpc)[j] == -1) 253 continue; 254 printf(" %d", cg_blks(&afs, &acg, i)[j]); 255 } 256 printf("\n"); 257 } 258 return (0); 259 }; 260 261 void 262 pbits(vp, max) 263 register void *vp; 264 int max; 265 { 266 register int i; 267 register char *p; 268 int count, j; 269 270 for (count = i = 0, p = vp; i < max; i++) 271 if (isset(p, i)) { 272 if (count) 273 printf(",%s", count % 6 ? " " : "\n\t"); 274 count++; 275 printf("%d", i); 276 j = i; 277 while ((i+1)<max && isset(p, i+1)) 278 i++; 279 if (i != j) 280 printf("-%d", i); 281 } 282 printf("\n"); 283 } 284 285 void 286 usage() 287 { 288 (void)fprintf(stderr, "usage: dumpfs filesys | device\n"); 289 exit(1); 290 } 291