1 /* 2 * Copyright (c) 1983 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 char copyright[] = 10 "@(#) Copyright (c) 1983 The Regents of the University of California.\n\ 11 All rights reserved.\n"; 12 #endif /* not lint */ 13 14 #ifndef lint 15 static char sccsid[] = "@(#)dumpfs.c 5.12 (Berkeley) 05/28/92"; 16 #endif /* not lint */ 17 18 #include <sys/param.h> 19 #include <sys/time.h> 20 #include <ufs/ufs/dinode.h> 21 #include <ufs/ffs/fs.h> 22 23 #include <stdio.h> 24 #include <fstab.h> 25 26 /* 27 * dumpfs 28 */ 29 30 union { 31 struct fs fs; 32 char pad[MAXBSIZE]; 33 } fsun; 34 #define afs fsun.fs 35 36 union { 37 struct cg cg; 38 char pad[MAXBSIZE]; 39 } cgun; 40 #define acg cgun.cg 41 42 long dev_bsize = 1; 43 44 main(argc, argv) 45 char **argv; 46 { 47 register struct fstab *fs; 48 49 argc--, argv++; 50 if (argc < 1) { 51 fprintf(stderr, "usage: dumpfs fs ...\n"); 52 exit(1); 53 } 54 for (; argc > 0; argv++, argc--) { 55 fs = getfsfile(*argv); 56 if (fs == 0) 57 dumpfs(*argv); 58 else 59 dumpfs(fs->fs_spec); 60 } 61 } 62 63 dumpfs(name) 64 char *name; 65 { 66 int c, i, j, k, size; 67 68 close(0); 69 if (open(name, 0) != 0) { 70 perror(name); 71 return; 72 } 73 lseek(0, SBOFF, 0); 74 if (read(0, &afs, SBSIZE) != SBSIZE) { 75 perror(name); 76 return; 77 } 78 if (afs.fs_postblformat == FS_42POSTBLFMT) 79 afs.fs_nrpos = 8; 80 dev_bsize = afs.fs_fsize / fsbtodb(&afs, 1); 81 printf("magic\t%x\tformat\t%s\ttime\t%s", afs.fs_magic, 82 afs.fs_postblformat == FS_42POSTBLFMT ? "static" : "dynamic", 83 ctime(&afs.fs_time)); 84 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", 85 afs.fs_cstotal.cs_nbfree, afs.fs_cstotal.cs_ndir, 86 afs.fs_cstotal.cs_nifree, afs.fs_cstotal.cs_nffree); 87 printf("ncg\t%d\tncyl\t%d\tsize\t%d\tblocks\t%d\n", 88 afs.fs_ncg, afs.fs_ncyl, afs.fs_size, afs.fs_dsize); 89 printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n", 90 afs.fs_bsize, afs.fs_bshift, afs.fs_bmask); 91 printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n", 92 afs.fs_fsize, afs.fs_fshift, afs.fs_fmask); 93 printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n", 94 afs.fs_frag, afs.fs_fragshift, afs.fs_fsbtodb); 95 printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n", 96 afs.fs_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg); 97 printf("minfree\t%d%%\toptim\t%s\tmaxcontig %d\tmaxbpg\t%d\n", 98 afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time", 99 afs.fs_maxcontig, afs.fs_maxbpg); 100 printf("rotdelay %dms\theadswitch %dus\ttrackseek %dus\trps\t%d\n", 101 afs.fs_rotdelay, afs.fs_headswitch, afs.fs_trkseek, afs.fs_rps); 102 printf("ntrak\t%d\tnsect\t%d\tnpsect\t%d\tspc\t%d\n", 103 afs.fs_ntrak, afs.fs_nsect, afs.fs_npsect, afs.fs_spc); 104 printf("trackskew %d\tinterleave %d\n", 105 afs.fs_trackskew, afs.fs_interleave); 106 printf("nindir\t%d\tinopb\t%d\tnspf\t%d\n", 107 afs.fs_nindir, afs.fs_inopb, afs.fs_nspf); 108 printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n", 109 afs.fs_sblkno, afs.fs_cblkno, afs.fs_iblkno, afs.fs_dblkno); 110 printf("sbsize\t%d\tcgsize\t%d\tcgoffset %d\tcgmask\t0x%08x\n", 111 afs.fs_sbsize, afs.fs_cgsize, afs.fs_cgoffset, afs.fs_cgmask); 112 printf("csaddr\t%d\tcssize\t%d\tshift\t%d\tmask\t0x%08x\n", 113 afs.fs_csaddr, afs.fs_cssize, afs.fs_csshift, afs.fs_csmask); 114 printf("cgrotor\t%d\tfmod\t%d\tronly\t%d\n", 115 afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly); 116 if (afs.fs_cpc != 0) 117 printf("blocks available in each of %d rotational positions", 118 afs.fs_nrpos); 119 else 120 printf("insufficient space to maintain rotational tables\n"); 121 for (c = 0; c < afs.fs_cpc; c++) { 122 printf("\ncylinder number %d:", c); 123 for (i = 0; i < afs.fs_nrpos; i++) { 124 if (fs_postbl(&afs, c)[i] == -1) 125 continue; 126 printf("\n position %d:\t", i); 127 for (j = fs_postbl(&afs, c)[i], k = 1; ; 128 j += fs_rotbl(&afs)[j], k++) { 129 printf("%5d", j); 130 if (k % 12 == 0) 131 printf("\n\t\t"); 132 if (fs_rotbl(&afs)[j] == 0) 133 break; 134 } 135 } 136 } 137 printf("\ncs[].cs_(nbfree,ndir,nifree,nffree):\n\t"); 138 for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) { 139 size = afs.fs_cssize - i < afs.fs_bsize ? 140 afs.fs_cssize - i : afs.fs_bsize; 141 afs.fs_csp[j] = (struct csum *)calloc(1, size); 142 lseek(0, fsbtodb(&afs, (afs.fs_csaddr + j * afs.fs_frag)) * 143 dev_bsize, 0); 144 if (read(0, afs.fs_csp[j], size) != size) { 145 perror(name); 146 return; 147 } 148 } 149 for (i = 0; i < afs.fs_ncg; i++) { 150 struct csum *cs = &afs.fs_cs(&afs, i); 151 if (i && i % 4 == 0) 152 printf("\n\t"); 153 printf("(%d,%d,%d,%d) ", 154 cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree); 155 } 156 printf("\n"); 157 if (afs.fs_ncyl % afs.fs_cpg) { 158 printf("cylinders in last group %d\n", 159 i = afs.fs_ncyl % afs.fs_cpg); 160 printf("blocks in last group %d\n", 161 i * afs.fs_spc / NSPB(&afs)); 162 } 163 printf("\n"); 164 for (i = 0; i < afs.fs_ncg; i++) 165 dumpcg(name, i); 166 close(0); 167 }; 168 169 dumpcg(name, c) 170 char *name; 171 int c; 172 { 173 int i,j; 174 175 printf("\ncg %d:\n", c); 176 lseek(0, fsbtodb(&afs, cgtod(&afs, c)) * dev_bsize, 0); 177 i = lseek(0, 0, 1); 178 if (read(0, (char *)&acg, afs.fs_bsize) != afs.fs_bsize) { 179 printf("dumpfs: %s: error reading cg\n", name); 180 return; 181 } 182 printf("magic\t%x\ttell\t%x\ttime\t%s", 183 afs.fs_postblformat == FS_42POSTBLFMT ? 184 ((struct ocg *)&acg)->cg_magic : acg.cg_magic, 185 i, ctime(&acg.cg_time)); 186 printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n", 187 acg.cg_cgx, acg.cg_ncyl, acg.cg_niblk, acg.cg_ndblk); 188 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", 189 acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir, 190 acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree); 191 printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum", 192 acg.cg_rotor, acg.cg_irotor, acg.cg_frotor); 193 for (i = 1, j = 0; i < afs.fs_frag; i++) { 194 printf("\t%d", acg.cg_frsum[i]); 195 j += i * acg.cg_frsum[i]; 196 } 197 printf("\nsum of frsum: %d\niused:\t", j); 198 pbits(cg_inosused(&acg), afs.fs_ipg); 199 printf("free:\t"); 200 pbits(cg_blksfree(&acg), afs.fs_fpg); 201 printf("b:\n"); 202 for (i = 0; i < afs.fs_cpg; i++) { 203 if (cg_blktot(&acg)[i] == 0) 204 continue; 205 printf(" c%d:\t(%d)\t", i, cg_blktot(&acg)[i]); 206 for (j = 0; j < afs.fs_nrpos; j++) { 207 if (afs.fs_cpc > 0 && 208 fs_postbl(&afs, i % afs.fs_cpc)[j] == -1) 209 continue; 210 printf(" %d", cg_blks(&afs, &acg, i)[j]); 211 } 212 printf("\n"); 213 } 214 }; 215 216 pbits(cp, max) 217 register char *cp; 218 int max; 219 { 220 register int i; 221 int count = 0, j; 222 223 for (i = 0; i < max; i++) 224 if (isset(cp, i)) { 225 if (count) 226 printf(",%s", count % 6 ? " " : "\n\t"); 227 count++; 228 printf("%d", i); 229 j = i; 230 while ((i+1)<max && isset(cp, i+1)) 231 i++; 232 if (i != j) 233 printf("-%d", i); 234 } 235 printf("\n"); 236 } 237