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