ffs.c revision 186334
1185222Ssam/* $NetBSD: ffs.c,v 1.30 2004/06/24 22:30:13 lukem Exp $ */ 2185222Ssam 3185222Ssam/* 4185222Ssam * Copyright (c) 2001 Wasabi Systems, Inc. 5185222Ssam * All rights reserved. 6185222Ssam * 7185222Ssam * Written by Luke Mewburn for Wasabi Systems, Inc. 8185222Ssam * 9185222Ssam * Redistribution and use in source and binary forms, with or without 10185222Ssam * modification, are permitted provided that the following conditions 11185222Ssam * are met: 12185222Ssam * 1. Redistributions of source code must retain the above copyright 13185222Ssam * notice, this list of conditions and the following disclaimer. 14185222Ssam * 2. Redistributions in binary form must reproduce the above copyright 15185222Ssam * notice, this list of conditions and the following disclaimer in the 16185222Ssam * documentation and/or other materials provided with the distribution. 17185222Ssam * 3. All advertising materials mentioning features or use of this software 18185222Ssam * must display the following acknowledgement: 19185222Ssam * This product includes software developed for the NetBSD Project by 20185222Ssam * Wasabi Systems, Inc. 21185222Ssam * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22185222Ssam * or promote products derived from this software without specific prior 23185222Ssam * written permission. 24185222Ssam * 25185222Ssam * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26185222Ssam * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27185222Ssam * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28185222Ssam * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29185222Ssam * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30185222Ssam * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31185222Ssam * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32185222Ssam * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33185222Ssam * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34185222Ssam * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35185222Ssam * POSSIBILITY OF SUCH DAMAGE. 36185222Ssam */ 37185222Ssam/* 38185222Ssam * Copyright (c) 1982, 1986, 1989, 1993 39185222Ssam * The Regents of the University of California. All rights reserved. 40185222Ssam * 41185222Ssam * Redistribution and use in source and binary forms, with or without 42185222Ssam * modification, are permitted provided that the following conditions 43185222Ssam * are met: 44185222Ssam * 1. Redistributions of source code must retain the above copyright 45185222Ssam * notice, this list of conditions and the following disclaimer. 46185222Ssam * 2. Redistributions in binary form must reproduce the above copyright 47185222Ssam * notice, this list of conditions and the following disclaimer in the 48185222Ssam * documentation and/or other materials provided with the distribution. 49185222Ssam * 3. Neither the name of the University nor the names of its contributors 50185222Ssam * may be used to endorse or promote products derived from this software 51185222Ssam * without specific prior written permission. 52185222Ssam * 53185222Ssam * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54185222Ssam * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55185222Ssam * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56185222Ssam * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57185222Ssam * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58185222Ssam * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59185222Ssam * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60185222Ssam * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61185222Ssam * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62185222Ssam * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63185222Ssam * SUCH DAMAGE. 64185222Ssam * 65185222Ssam * @(#)ffs_alloc.c 8.19 (Berkeley) 7/13/95 66185222Ssam */ 67185222Ssam 68185222Ssam#include <sys/cdefs.h> 69186334Ssam__FBSDID("$FreeBSD: projects/makefs/ffs.c 186334 2008-12-19 18:45:43Z sam $"); 70185222Ssam 71185222Ssam#include <sys/param.h> 72185222Ssam 73185222Ssam#include <sys/mount.h> 74185222Ssam 75185222Ssam#include <assert.h> 76185222Ssam#include <errno.h> 77185222Ssam#include <fcntl.h> 78185222Ssam#include <stdarg.h> 79185222Ssam#include <stdio.h> 80185222Ssam#include <stdlib.h> 81185222Ssam#include <string.h> 82185222Ssam#include <unistd.h> 83185222Ssam 84185222Ssam#include "makefs.h" 85185222Ssam 86185222Ssam#include <ufs/ufs/dinode.h> 87185222Ssam#include <ufs/ufs/dir.h> 88185222Ssam#include <ufs/ffs/fs.h> 89185222Ssam 90186261Ssam#include "ffs/ufs_bswap.h" 91185222Ssam#include "ffs/ufs_inode.h" 92185222Ssam#include "ffs/newfs_extern.h" 93185222Ssam#include "ffs/ffs_extern.h" 94185222Ssam 95185222Ssam#undef DIP 96185222Ssam#define DIP(dp, field) \ 97185222Ssam ((fsopts->version == 1) ? \ 98185222Ssam (dp)->ffs1_din.di_##field : (dp)->ffs2_din.di_##field) 99185222Ssam 100185222Ssam/* 101185222Ssam * Various file system defaults (cribbed from newfs(8)). 102185222Ssam */ 103185222Ssam#define DFL_FRAGSIZE 1024 /* fragment size */ 104185222Ssam#define DFL_BLKSIZE 8192 /* block size */ 105185222Ssam#define DFL_SECSIZE 512 /* sector size */ 106185222Ssam#define DFL_CYLSPERGROUP 65536 /* cylinders per group */ 107185222Ssam#define DFL_FRAGSPERINODE 4 /* fragments per inode */ 108185222Ssam#define DFL_ROTDELAY 0 /* rotational delay */ 109185222Ssam#define DFL_NRPOS 1 /* rotational positions */ 110185222Ssam#define DFL_RPM 3600 /* rpm of disk */ 111185222Ssam#define DFL_NSECTORS 64 /* # of sectors */ 112185222Ssam#define DFL_NTRACKS 16 /* # of tracks */ 113185222Ssam 114185222Ssam 115185222Ssamtypedef struct { 116185222Ssam u_char *buf; /* buf for directory */ 117185222Ssam doff_t size; /* full size of buf */ 118185222Ssam doff_t cur; /* offset of current entry */ 119185222Ssam} dirbuf_t; 120185222Ssam 121185222Ssam 122185222Ssamstatic int ffs_create_image(const char *, fsinfo_t *); 123185222Ssamstatic void ffs_dump_fsinfo(fsinfo_t *); 124185222Ssamstatic void ffs_dump_dirbuf(dirbuf_t *, const char *, int); 125185222Ssamstatic void ffs_make_dirbuf(dirbuf_t *, const char *, fsnode *, int); 126185222Ssamstatic int ffs_populate_dir(const char *, fsnode *, fsinfo_t *); 127185222Ssamstatic void ffs_size_dir(fsnode *, fsinfo_t *); 128185222Ssamstatic void ffs_validate(const char *, fsnode *, fsinfo_t *); 129185222Ssamstatic void ffs_write_file(union dinode *, uint32_t, void *, fsinfo_t *); 130185222Ssamstatic void ffs_write_inode(union dinode *, uint32_t, const fsinfo_t *); 131185222Ssamstatic void *ffs_build_dinode1(struct ufs1_dinode *, dirbuf_t *, fsnode *, 132185222Ssam fsnode *, fsinfo_t *); 133185222Ssamstatic void *ffs_build_dinode2(struct ufs2_dinode *, dirbuf_t *, fsnode *, 134185222Ssam fsnode *, fsinfo_t *); 135185222Ssam 136185222Ssam 137185222Ssam 138185222Ssamint sectorsize; /* XXX: for buf.c::getblk() */ 139185222Ssam 140185222Ssam /* publically visible functions */ 141185222Ssam 142185222Ssamint 143185222Ssamffs_parse_opts(const char *option, fsinfo_t *fsopts) 144185222Ssam{ 145185222Ssam option_t ffs_options[] = { 146185222Ssam { "bsize", &fsopts->bsize, 1, INT_MAX, 147185222Ssam "block size" }, 148185222Ssam { "fsize", &fsopts->fsize, 1, INT_MAX, 149185222Ssam "fragment size" }, 150185222Ssam { "density", &fsopts->density, 1, INT_MAX, 151185222Ssam "bytes per inode" }, 152185222Ssam { "minfree", &fsopts->minfree, 0, 99, 153185222Ssam "minfree" }, 154185222Ssam { "maxbpf", &fsopts->maxbpg, 1, INT_MAX, 155185222Ssam "max blocks per file in a cg" }, 156185222Ssam { "avgfilesize", &fsopts->avgfilesize, 1, INT_MAX, 157185222Ssam "expected average file size" }, 158185222Ssam { "avgfpdir", &fsopts->avgfpdir, 1, INT_MAX, 159185222Ssam "expected # of files per directory" }, 160185222Ssam { "extent", &fsopts->maxbsize, 1, INT_MAX, 161185222Ssam "maximum # extent size" }, 162185222Ssam { "maxbpcg", &fsopts->maxblkspercg, 1, INT_MAX, 163185222Ssam "max # of blocks per group" }, 164185222Ssam { "version", &fsopts->version, 1, 2, 165185222Ssam "UFS version" }, 166185222Ssam { NULL } 167185222Ssam }; 168185222Ssam 169185222Ssam char *var, *val; 170185222Ssam int rv; 171185222Ssam 172185222Ssam (void)&ffs_options; 173185222Ssam assert(option != NULL); 174185222Ssam assert(fsopts != NULL); 175185222Ssam 176185222Ssam if (debug & DEBUG_FS_PARSE_OPTS) 177185222Ssam printf("ffs_parse_opts: got `%s'\n", option); 178185222Ssam 179185222Ssam if ((var = strdup(option)) == NULL) 180185222Ssam err(1, "Allocating memory for copy of option string"); 181185222Ssam rv = 0; 182185222Ssam 183185222Ssam if ((val = strchr(var, '=')) == NULL) { 184185222Ssam warnx("Option `%s' doesn't contain a value", var); 185185222Ssam goto leave_ffs_parse_opts; 186185222Ssam } 187185222Ssam *val++ = '\0'; 188185222Ssam 189185222Ssam if (strcmp(var, "optimization") == 0) { 190185222Ssam if (strcmp(val, "time") == 0) { 191185222Ssam fsopts->optimization = FS_OPTTIME; 192185222Ssam } else if (strcmp(val, "space") == 0) { 193185222Ssam fsopts->optimization = FS_OPTSPACE; 194185222Ssam } else { 195185222Ssam warnx("Invalid optimization `%s'", val); 196185222Ssam goto leave_ffs_parse_opts; 197185222Ssam } 198185222Ssam rv = 1; 199185222Ssam } else 200185222Ssam rv = set_option(ffs_options, var, val); 201185222Ssam 202185222Ssam leave_ffs_parse_opts: 203185222Ssam if (var) 204185222Ssam free(var); 205185222Ssam return (rv); 206185222Ssam} 207185222Ssam 208185222Ssam 209185222Ssamvoid 210185222Ssamffs_makefs(const char *image, const char *dir, fsnode *root, fsinfo_t *fsopts) 211185222Ssam{ 212185222Ssam struct fs *superblock; 213185222Ssam struct timeval start; 214185222Ssam 215185222Ssam assert(image != NULL); 216185222Ssam assert(dir != NULL); 217185222Ssam assert(root != NULL); 218185222Ssam assert(fsopts != NULL); 219185222Ssam 220185222Ssam if (debug & DEBUG_FS_MAKEFS) 221185222Ssam printf("ffs_makefs: image %s directory %s root %p\n", 222185222Ssam image, dir, root); 223185222Ssam 224185222Ssam /* validate tree and options */ 225185222Ssam TIMER_START(start); 226185222Ssam ffs_validate(dir, root, fsopts); 227185222Ssam TIMER_RESULTS(start, "ffs_validate"); 228185222Ssam 229185222Ssam printf("Calculated size of `%s': %lld bytes, %lld inodes\n", 230185222Ssam image, (long long)fsopts->size, (long long)fsopts->inodes); 231185222Ssam 232185222Ssam /* create image */ 233185222Ssam TIMER_START(start); 234185222Ssam if (ffs_create_image(image, fsopts) == -1) 235185222Ssam errx(1, "Image file `%s' not created.", image); 236185222Ssam TIMER_RESULTS(start, "ffs_create_image"); 237185222Ssam 238185222Ssam fsopts->curinode = ROOTINO; 239185222Ssam 240185222Ssam if (debug & DEBUG_FS_MAKEFS) 241185222Ssam putchar('\n'); 242185222Ssam 243185222Ssam /* populate image */ 244185222Ssam printf("Populating `%s'\n", image); 245185222Ssam TIMER_START(start); 246185222Ssam if (! ffs_populate_dir(dir, root, fsopts)) 247185222Ssam errx(1, "Image file `%s' not populated.", image); 248185222Ssam TIMER_RESULTS(start, "ffs_populate_dir"); 249185222Ssam 250185222Ssam /* ensure no outstanding buffers remain */ 251185222Ssam if (debug & DEBUG_FS_MAKEFS) 252185222Ssam bcleanup(); 253185222Ssam 254185222Ssam /* update various superblock parameters */ 255185222Ssam superblock = fsopts->superblock; 256185222Ssam superblock->fs_fmod = 0; 257185222Ssam superblock->fs_old_cstotal.cs_ndir = superblock->fs_cstotal.cs_ndir; 258185222Ssam superblock->fs_old_cstotal.cs_nbfree = superblock->fs_cstotal.cs_nbfree; 259185222Ssam superblock->fs_old_cstotal.cs_nifree = superblock->fs_cstotal.cs_nifree; 260185222Ssam superblock->fs_old_cstotal.cs_nffree = superblock->fs_cstotal.cs_nffree; 261185222Ssam 262185222Ssam /* write out superblock; image is now complete */ 263185222Ssam ffs_write_superblock(fsopts->superblock, fsopts); 264185222Ssam if (close(fsopts->fd) == -1) 265185222Ssam err(1, "Closing `%s'", image); 266185222Ssam fsopts->fd = -1; 267185222Ssam printf("Image `%s' complete\n", image); 268185222Ssam} 269185222Ssam 270185222Ssam /* end of public functions */ 271185222Ssam 272185222Ssam 273185222Ssamstatic void 274185222Ssamffs_validate(const char *dir, fsnode *root, fsinfo_t *fsopts) 275185222Ssam{ 276185222Ssam int32_t ncg = 1; 277185222Ssam#if notyet 278185222Ssam int32_t spc, nspf, ncyl, fssize; 279185222Ssam#endif 280186265Ssam off_t size; 281185222Ssam 282185222Ssam assert(dir != NULL); 283185222Ssam assert(root != NULL); 284185222Ssam assert(fsopts != NULL); 285185222Ssam 286185222Ssam if (debug & DEBUG_FS_VALIDATE) { 287185222Ssam printf("ffs_validate: before defaults set:\n"); 288185222Ssam ffs_dump_fsinfo(fsopts); 289185222Ssam } 290185222Ssam 291185222Ssam /* set FFS defaults */ 292185222Ssam if (fsopts->sectorsize == -1) 293185222Ssam fsopts->sectorsize = DFL_SECSIZE; 294185222Ssam if (fsopts->fsize == -1) 295185222Ssam fsopts->fsize = MAX(DFL_FRAGSIZE, fsopts->sectorsize); 296185222Ssam if (fsopts->bsize == -1) 297185222Ssam fsopts->bsize = MIN(DFL_BLKSIZE, 8 * fsopts->fsize); 298185222Ssam if (fsopts->cpg == -1) 299185222Ssam fsopts->cpg = DFL_CYLSPERGROUP; 300185222Ssam else 301185222Ssam fsopts->cpgflg = 1; 302185222Ssam /* fsopts->density is set below */ 303185222Ssam if (fsopts->nsectors == -1) 304185222Ssam fsopts->nsectors = DFL_NSECTORS; 305185222Ssam if (fsopts->minfree == -1) 306185222Ssam fsopts->minfree = MINFREE; 307185222Ssam if (fsopts->optimization == -1) 308185222Ssam fsopts->optimization = DEFAULTOPT; 309185222Ssam if (fsopts->maxcontig == -1) 310185222Ssam fsopts->maxcontig = 311185222Ssam MAX(1, MIN(MAXPHYS, FFS_MAXBSIZE) / fsopts->bsize); 312185222Ssam /* XXX ondisk32 */ 313185222Ssam if (fsopts->maxbpg == -1) 314185222Ssam fsopts->maxbpg = fsopts->bsize / sizeof(int32_t); 315185222Ssam if (fsopts->avgfilesize == -1) 316185222Ssam fsopts->avgfilesize = AVFILESIZ; 317185222Ssam if (fsopts->avgfpdir == -1) 318185222Ssam fsopts->avgfpdir = AFPDIR; 319185222Ssam 320185222Ssam /* calculate size of tree */ 321185222Ssam ffs_size_dir(root, fsopts); 322185222Ssam fsopts->inodes += ROOTINO; /* include first two inodes */ 323185222Ssam 324185222Ssam if (debug & DEBUG_FS_VALIDATE) 325185222Ssam printf("ffs_validate: size of tree: %lld bytes, %lld inodes\n", 326185222Ssam (long long)fsopts->size, (long long)fsopts->inodes); 327185222Ssam 328185222Ssam /* add requested slop */ 329185222Ssam fsopts->size += fsopts->freeblocks; 330185222Ssam fsopts->inodes += fsopts->freefiles; 331185222Ssam if (fsopts->freefilepc > 0) 332185222Ssam fsopts->inodes = 333185222Ssam fsopts->inodes * (100 + fsopts->freefilepc) / 100; 334185222Ssam if (fsopts->freeblockpc > 0) 335185222Ssam fsopts->size = 336185222Ssam fsopts->size * (100 + fsopts->freeblockpc) / 100; 337185222Ssam 338185222Ssam /* add space needed for superblocks */ 339185222Ssam /* 340185222Ssam * The old SBOFF (SBLOCK_UFS1) is used here because makefs is 341185222Ssam * typically used for small filesystems where space matters. 342185222Ssam * XXX make this an option. 343185222Ssam */ 344185222Ssam fsopts->size += (SBLOCK_UFS1 + SBLOCKSIZE) * ncg; 345185222Ssam /* add space needed to store inodes, x3 for blockmaps, etc */ 346185222Ssam if (fsopts->version == 1) 347185222Ssam fsopts->size += ncg * DINODE1_SIZE * 348185222Ssam roundup(fsopts->inodes / ncg, fsopts->bsize / DINODE1_SIZE); 349185222Ssam else 350185222Ssam fsopts->size += ncg * DINODE2_SIZE * 351185222Ssam roundup(fsopts->inodes / ncg, fsopts->bsize / DINODE2_SIZE); 352185222Ssam 353185222Ssam /* add minfree */ 354185222Ssam if (fsopts->minfree > 0) 355185222Ssam fsopts->size = 356185222Ssam fsopts->size * (100 + fsopts->minfree) / 100; 357185222Ssam /* 358185222Ssam * XXX any other fs slop to add, such as csum's, bitmaps, etc ?? 359185222Ssam */ 360185222Ssam 361185222Ssam if (fsopts->size < fsopts->minsize) /* ensure meets minimum size */ 362185222Ssam fsopts->size = fsopts->minsize; 363185222Ssam 364185222Ssam /* round up to the next block */ 365186265Ssam size = roundup(fsopts->size, fsopts->bsize); 366185222Ssam 367186265Ssam /* now check calculated sizes vs requested sizes */ 368186265Ssam if (fsopts->maxsize > 0 && size > fsopts->maxsize) { 369186272Ssam if (debug & DEBUG_FS_VALIDATE) { 370186272Ssam printf("%s: `%s' size of %lld is larger than the " 371186272Ssam "maxsize of %lld; rounding down to %lld.", 372186272Ssam __func__, dir, (long long)size, 373186272Ssam (long long)fsopts->maxsize, 374186272Ssam rounddown(fsopts->size, fsopts->bsize)); 375186272Ssam } 376186265Ssam size = rounddown(fsopts->size, fsopts->bsize); 377186265Ssam } 378186265Ssam fsopts->size = size; 379186265Ssam 380185222Ssam /* calculate density if necessary */ 381185222Ssam if (fsopts->density == -1) 382185222Ssam fsopts->density = fsopts->size / fsopts->inodes + 1; 383185222Ssam 384185222Ssam if (debug & DEBUG_FS_VALIDATE) { 385185222Ssam printf("ffs_validate: after defaults set:\n"); 386185222Ssam ffs_dump_fsinfo(fsopts); 387185222Ssam printf("ffs_validate: dir %s; %lld bytes, %lld inodes\n", 388185222Ssam dir, (long long)fsopts->size, (long long)fsopts->inodes); 389185222Ssam } 390185222Ssam sectorsize = fsopts->sectorsize; /* XXX - see earlier */ 391185222Ssam} 392185222Ssam 393185222Ssam 394185222Ssamstatic void 395185222Ssamffs_dump_fsinfo(fsinfo_t *f) 396185222Ssam{ 397185222Ssam 398185222Ssam printf("fsopts at %p\n", f); 399185222Ssam 400185222Ssam printf("\tsize %lld, inodes %lld, curinode %u\n", 401185222Ssam (long long)f->size, (long long)f->inodes, f->curinode); 402185222Ssam 403185222Ssam printf("\tminsize %lld, maxsize %lld\n", 404185222Ssam (long long)f->minsize, (long long)f->maxsize); 405185222Ssam printf("\tfree files %lld, freefile %% %d\n", 406185222Ssam (long long)f->freefiles, f->freefilepc); 407185222Ssam printf("\tfree blocks %lld, freeblock %% %d\n", 408185222Ssam (long long)f->freeblocks, f->freeblockpc); 409185222Ssam printf("\tneedswap %d, sectorsize %d\n", f->needswap, f->sectorsize); 410185222Ssam 411185222Ssam printf("\tbsize %d, fsize %d, cpg %d, density %d\n", 412185222Ssam f->bsize, f->fsize, f->cpg, f->density); 413185222Ssam printf("\tnsectors %d, rpm %d, minfree %d\n", 414185222Ssam f->nsectors, f->rpm, f->minfree); 415185222Ssam printf("\tmaxcontig %d, maxbpg %d\n", 416185222Ssam f->maxcontig, f->maxbpg); 417185222Ssam printf("\toptimization %s\n", 418185222Ssam f->optimization == FS_OPTSPACE ? "space" : "time"); 419185222Ssam} 420185222Ssam 421185222Ssam 422185222Ssamstatic int 423185222Ssamffs_create_image(const char *image, fsinfo_t *fsopts) 424185222Ssam{ 425185222Ssam#if HAVE_STRUCT_STATVFS_F_IOSIZE 426185222Ssam struct statvfs sfs; 427185222Ssam#endif 428185222Ssam struct fs *fs; 429185222Ssam char *buf; 430185222Ssam int i, bufsize; 431185222Ssam off_t bufrem; 432185222Ssam 433185222Ssam assert (image != NULL); 434185222Ssam assert (fsopts != NULL); 435185222Ssam 436185222Ssam /* create image */ 437185222Ssam if ((fsopts->fd = open(image, O_RDWR | O_CREAT | O_TRUNC, 0777)) 438185222Ssam == -1) { 439185222Ssam warn("Can't open `%s' for writing", image); 440185222Ssam return (-1); 441185222Ssam } 442185222Ssam 443185222Ssam /* zero image */ 444185222Ssam#if HAVE_STRUCT_STATVFS_F_IOSIZE 445185222Ssam if (fstatvfs(fsopts->fd, &sfs) == -1) { 446185222Ssam#endif 447185222Ssam bufsize = 8192; 448185222Ssam#if HAVE_STRUCT_STATVFS_F_IOSIZE 449185222Ssam warn("can't fstatvfs `%s', using default %d byte chunk", 450185222Ssam image, bufsize); 451185222Ssam } else 452185222Ssam bufsize = sfs.f_iosize; 453185222Ssam#endif 454185222Ssam bufrem = fsopts->size; 455185222Ssam if (debug & DEBUG_FS_CREATE_IMAGE) 456185222Ssam printf( 457185222Ssam "zero-ing image `%s', %lld sectors, using %d byte chunks\n", 458185222Ssam image, (long long)bufrem, bufsize); 459185222Ssam if ((buf = calloc(1, bufsize)) == NULL) { 460185222Ssam warn("Can't create buffer for sector"); 461185222Ssam return (-1); 462185222Ssam } 463185222Ssam while (bufrem > 0) { 464185222Ssam i = write(fsopts->fd, buf, MIN(bufsize, bufrem)); 465185222Ssam if (i == -1) { 466185222Ssam warn("zeroing image, %lld bytes to go", 467185222Ssam (long long)bufrem); 468185222Ssam return (-1); 469185222Ssam } 470185222Ssam bufrem -= i; 471185222Ssam } 472185222Ssam 473185222Ssam /* make the file system */ 474185222Ssam if (debug & DEBUG_FS_CREATE_IMAGE) 475185222Ssam printf("calling mkfs(\"%s\", ...)\n", image); 476185222Ssam fs = ffs_mkfs(image, fsopts); 477185222Ssam fsopts->superblock = (void *)fs; 478185222Ssam if (debug & DEBUG_FS_CREATE_IMAGE) { 479185222Ssam time_t t; 480185222Ssam 481185222Ssam t = (time_t)((struct fs *)fsopts->superblock)->fs_time; 482185222Ssam printf("mkfs returned %p; fs_time %s", 483185222Ssam fsopts->superblock, ctime(&t)); 484185222Ssam printf("fs totals: nbfree %lld, nffree %lld, nifree %lld, ndir %lld\n", 485185222Ssam (long long)fs->fs_cstotal.cs_nbfree, 486185222Ssam (long long)fs->fs_cstotal.cs_nffree, 487185222Ssam (long long)fs->fs_cstotal.cs_nifree, 488185222Ssam (long long)fs->fs_cstotal.cs_ndir); 489185222Ssam } 490185222Ssam 491185222Ssam if (fs->fs_cstotal.cs_nifree + ROOTINO < fsopts->inodes) { 492185222Ssam warnx( 493185222Ssam "Image file `%s' has %lld free inodes; %lld are required.", 494185222Ssam image, 495185222Ssam (long long)fs->fs_cstotal.cs_nifree + ROOTINO, 496185222Ssam (long long)fsopts->inodes); 497185222Ssam return (-1); 498185222Ssam } 499185222Ssam return (fsopts->fd); 500185222Ssam} 501185222Ssam 502185222Ssam 503185222Ssamstatic void 504185222Ssamffs_size_dir(fsnode *root, fsinfo_t *fsopts) 505185222Ssam{ 506185222Ssam struct direct tmpdir; 507185222Ssam fsnode * node; 508185222Ssam int curdirsize, this; 509185222Ssam 510185222Ssam /* node may be NULL (empty directory) */ 511185222Ssam assert(fsopts != NULL); 512185222Ssam 513185222Ssam if (debug & DEBUG_FS_SIZE_DIR) 514185222Ssam printf("ffs_size_dir: entry: bytes %lld inodes %lld\n", 515185222Ssam (long long)fsopts->size, (long long)fsopts->inodes); 516185222Ssam 517185222Ssam#define ADDDIRENT(e) do { \ 518185222Ssam tmpdir.d_namlen = strlen((e)); \ 519186261Ssam this = DIRSIZ_SWAP(0, &tmpdir, 0); \ 520185222Ssam if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 521185222Ssam printf("ADDDIRENT: was: %s (%d) this %d cur %d\n", \ 522185222Ssam e, tmpdir.d_namlen, this, curdirsize); \ 523185222Ssam if (this + curdirsize > roundup(curdirsize, DIRBLKSIZ)) \ 524185222Ssam curdirsize = roundup(curdirsize, DIRBLKSIZ); \ 525185222Ssam curdirsize += this; \ 526185222Ssam if (debug & DEBUG_FS_SIZE_DIR_ADD_DIRENT) \ 527185222Ssam printf("ADDDIRENT: now: %s (%d) this %d cur %d\n", \ 528185222Ssam e, tmpdir.d_namlen, this, curdirsize); \ 529185222Ssam} while (0); 530185222Ssam 531185222Ssam /* 532185222Ssam * XXX this needs to take into account extra space consumed 533185222Ssam * by indirect blocks, etc. 534185222Ssam */ 535185222Ssam#define ADDSIZE(x) do { \ 536185222Ssam fsopts->size += roundup((x), fsopts->fsize); \ 537185222Ssam} while (0); 538185222Ssam 539185222Ssam curdirsize = 0; 540185222Ssam for (node = root; node != NULL; node = node->next) { 541185222Ssam ADDDIRENT(node->name); 542185222Ssam if (FSNODE_EXCLUDE_P(fsopts, node)) 543185222Ssam continue; 544185222Ssam if (node == root) { /* we're at "." */ 545185222Ssam assert(strcmp(node->name, ".") == 0); 546185222Ssam ADDDIRENT(".."); 547185222Ssam } else if ((node->inode->flags & FI_SIZED) == 0) { 548185222Ssam /* don't count duplicate names */ 549185222Ssam node->inode->flags |= FI_SIZED; 550185222Ssam if (debug & DEBUG_FS_SIZE_DIR_NODE) 551185222Ssam printf("ffs_size_dir: `%s' size %lld\n", 552185222Ssam node->name, 553185222Ssam (long long)node->inode->st.st_size); 554185222Ssam fsopts->inodes++; 555185222Ssam if (node->type == S_IFREG) 556185222Ssam ADDSIZE(node->inode->st.st_size); 557185222Ssam if (node->type == S_IFLNK) { 558185222Ssam int slen; 559185222Ssam 560185222Ssam slen = strlen(node->symlink) + 1; 561185222Ssam if (slen >= (fsopts->version == 1 ? 562185222Ssam MAXSYMLINKLEN_UFS1 : 563185222Ssam MAXSYMLINKLEN_UFS2)) 564185222Ssam ADDSIZE(slen); 565185222Ssam } 566185222Ssam } 567185222Ssam if (node->type == S_IFDIR) 568185222Ssam ffs_size_dir(node->child, fsopts); 569185222Ssam } 570185222Ssam ADDSIZE(curdirsize); 571185222Ssam 572185222Ssam if (debug & DEBUG_FS_SIZE_DIR) 573185222Ssam printf("ffs_size_dir: exit: size %lld inodes %lld\n", 574185222Ssam (long long)fsopts->size, (long long)fsopts->inodes); 575185222Ssam} 576185222Ssam 577185222Ssamstatic void * 578185222Ssamffs_build_dinode1(struct ufs1_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 579185222Ssam fsnode *root, fsinfo_t *fsopts) 580185222Ssam{ 581185222Ssam int slen; 582185222Ssam void *membuf; 583185222Ssam 584185222Ssam memset(dinp, 0, sizeof(*dinp)); 585185222Ssam dinp->di_mode = cur->inode->st.st_mode; 586185222Ssam dinp->di_nlink = cur->inode->nlink; 587185222Ssam dinp->di_size = cur->inode->st.st_size; 588185222Ssam dinp->di_atime = cur->inode->st.st_atime; 589185222Ssam dinp->di_mtime = cur->inode->st.st_mtime; 590185222Ssam dinp->di_ctime = cur->inode->st.st_ctime; 591185222Ssam#if HAVE_STRUCT_STAT_ST_MTIMENSEC 592185222Ssam dinp->di_atimensec = cur->inode->st.st_atimensec; 593185222Ssam dinp->di_mtimensec = cur->inode->st.st_mtimensec; 594185222Ssam dinp->di_ctimensec = cur->inode->st.st_ctimensec; 595185222Ssam#endif 596185222Ssam#if HAVE_STRUCT_STAT_ST_FLAGS 597185222Ssam dinp->di_flags = cur->inode->st.st_flags; 598185222Ssam#endif 599185222Ssam#if HAVE_STRUCT_STAT_ST_GEN 600185222Ssam dinp->di_gen = cur->inode->st.st_gen; 601185222Ssam#endif 602185222Ssam dinp->di_uid = cur->inode->st.st_uid; 603185222Ssam dinp->di_gid = cur->inode->st.st_gid; 604185222Ssam /* not set: di_db, di_ib, di_blocks, di_spare */ 605185222Ssam 606185222Ssam membuf = NULL; 607185222Ssam if (cur == root) { /* "."; write dirbuf */ 608185222Ssam membuf = dbufp->buf; 609185222Ssam dinp->di_size = dbufp->size; 610185222Ssam } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 611185222Ssam dinp->di_size = 0; /* a device */ 612185222Ssam dinp->di_rdev = 613185222Ssam ufs_rw32(cur->inode->st.st_rdev, fsopts->needswap); 614185222Ssam } else if (S_ISLNK(cur->type)) { /* symlink */ 615185222Ssam slen = strlen(cur->symlink); 616185222Ssam if (slen < MAXSYMLINKLEN_UFS1) { /* short link */ 617185222Ssam memcpy(dinp->di_db, cur->symlink, slen); 618185222Ssam } else 619185222Ssam membuf = cur->symlink; 620185222Ssam dinp->di_size = slen; 621185222Ssam } 622185222Ssam return membuf; 623185222Ssam} 624185222Ssam 625185222Ssamstatic void * 626185222Ssamffs_build_dinode2(struct ufs2_dinode *dinp, dirbuf_t *dbufp, fsnode *cur, 627185222Ssam fsnode *root, fsinfo_t *fsopts) 628185222Ssam{ 629185222Ssam int slen; 630185222Ssam void *membuf; 631185222Ssam 632185222Ssam memset(dinp, 0, sizeof(*dinp)); 633185222Ssam dinp->di_mode = cur->inode->st.st_mode; 634185222Ssam dinp->di_nlink = cur->inode->nlink; 635185222Ssam dinp->di_size = cur->inode->st.st_size; 636185222Ssam dinp->di_atime = cur->inode->st.st_atime; 637185222Ssam dinp->di_mtime = cur->inode->st.st_mtime; 638185222Ssam dinp->di_ctime = cur->inode->st.st_ctime; 639185222Ssam#if HAVE_STRUCT_STAT_ST_MTIMENSEC 640185222Ssam dinp->di_atimensec = cur->inode->st.st_atimensec; 641185222Ssam dinp->di_mtimensec = cur->inode->st.st_mtimensec; 642185222Ssam dinp->di_ctimensec = cur->inode->st.st_ctimensec; 643185222Ssam#endif 644185222Ssam#if HAVE_STRUCT_STAT_ST_FLAGS 645185222Ssam dinp->di_flags = cur->inode->st.st_flags; 646185222Ssam#endif 647185222Ssam#if HAVE_STRUCT_STAT_ST_GEN 648185222Ssam dinp->di_gen = cur->inode->st.st_gen; 649185222Ssam#endif 650185222Ssam#if HAVE_STRUCT_STAT_BIRTHTIME 651185222Ssam dinp->di_birthtime = cur->inode->st.st_birthtime; 652185222Ssam dinp->di_birthnsec = cur->inode->st.st_birthtimensec; 653185222Ssam#endif 654185222Ssam dinp->di_uid = cur->inode->st.st_uid; 655185222Ssam dinp->di_gid = cur->inode->st.st_gid; 656185222Ssam /* not set: di_db, di_ib, di_blocks, di_spare */ 657185222Ssam 658185222Ssam membuf = NULL; 659185222Ssam if (cur == root) { /* "."; write dirbuf */ 660185222Ssam membuf = dbufp->buf; 661185222Ssam dinp->di_size = dbufp->size; 662185222Ssam } else if (S_ISBLK(cur->type) || S_ISCHR(cur->type)) { 663185222Ssam dinp->di_size = 0; /* a device */ 664185222Ssam dinp->di_rdev = 665185222Ssam ufs_rw64(cur->inode->st.st_rdev, fsopts->needswap); 666185222Ssam } else if (S_ISLNK(cur->type)) { /* symlink */ 667185222Ssam slen = strlen(cur->symlink); 668185222Ssam if (slen < MAXSYMLINKLEN_UFS2) { /* short link */ 669185222Ssam memcpy(dinp->di_db, cur->symlink, slen); 670185222Ssam } else 671185222Ssam membuf = cur->symlink; 672185222Ssam dinp->di_size = slen; 673185222Ssam } 674185222Ssam return membuf; 675185222Ssam} 676185222Ssam 677185222Ssamstatic int 678185222Ssamffs_populate_dir(const char *dir, fsnode *root, fsinfo_t *fsopts) 679185222Ssam{ 680185222Ssam fsnode *cur; 681185222Ssam dirbuf_t dirbuf; 682185222Ssam union dinode din; 683185222Ssam void *membuf; 684185222Ssam char path[MAXPATHLEN + 1]; 685185222Ssam 686185222Ssam assert(dir != NULL); 687185222Ssam assert(root != NULL); 688185222Ssam assert(fsopts != NULL); 689185222Ssam 690185222Ssam (void)memset(&dirbuf, 0, sizeof(dirbuf)); 691185222Ssam 692185222Ssam if (debug & DEBUG_FS_POPULATE) 693185222Ssam printf("ffs_populate_dir: PASS 1 dir %s node %p\n", dir, root); 694185222Ssam 695185222Ssam /* 696185222Ssam * pass 1: allocate inode numbers, build directory `file' 697185222Ssam */ 698185222Ssam for (cur = root; cur != NULL; cur = cur->next) { 699185222Ssam if (FSNODE_EXCLUDE_P(fsopts, cur)) 700185222Ssam continue; 701185222Ssam if ((cur->inode->flags & FI_ALLOCATED) == 0) { 702185222Ssam cur->inode->flags |= FI_ALLOCATED; 703185222Ssam if (cur == root && cur->parent != NULL) 704185222Ssam cur->inode->ino = cur->parent->inode->ino; 705185222Ssam else { 706185222Ssam cur->inode->ino = fsopts->curinode; 707185222Ssam fsopts->curinode++; 708185222Ssam } 709185222Ssam } 710185222Ssam ffs_make_dirbuf(&dirbuf, cur->name, cur, fsopts->needswap); 711185222Ssam if (cur == root) { /* we're at "."; add ".." */ 712185222Ssam ffs_make_dirbuf(&dirbuf, "..", 713185222Ssam cur->parent == NULL ? cur : cur->parent->first, 714185222Ssam fsopts->needswap); 715185222Ssam root->inode->nlink++; /* count my parent's link */ 716185222Ssam } else if (cur->child != NULL) 717185222Ssam root->inode->nlink++; /* count my child's link */ 718185222Ssam 719185222Ssam /* 720185222Ssam * XXX possibly write file and long symlinks here, 721185222Ssam * ensuring that blocks get written before inodes? 722185222Ssam * otoh, this isn't a real filesystem, so who 723185222Ssam * cares about ordering? :-) 724185222Ssam */ 725185222Ssam } 726185222Ssam if (debug & DEBUG_FS_POPULATE_DIRBUF) 727185222Ssam ffs_dump_dirbuf(&dirbuf, dir, fsopts->needswap); 728185222Ssam 729185222Ssam /* 730185222Ssam * pass 2: write out dirbuf, then non-directories at this level 731185222Ssam */ 732185222Ssam if (debug & DEBUG_FS_POPULATE) 733185222Ssam printf("ffs_populate_dir: PASS 2 dir %s\n", dir); 734185222Ssam for (cur = root; cur != NULL; cur = cur->next) { 735185222Ssam if (FSNODE_EXCLUDE_P(fsopts, cur)) 736185222Ssam continue; 737185222Ssam if (cur->inode->flags & FI_WRITTEN) 738185222Ssam continue; /* skip hard-linked entries */ 739185222Ssam cur->inode->flags |= FI_WRITTEN; 740185222Ssam 741185222Ssam if (snprintf(path, sizeof(path), "%s/%s", dir, cur->name) 742185222Ssam >= sizeof(path)) 743185222Ssam errx(1, "Pathname too long."); 744185222Ssam 745185222Ssam if (cur->child != NULL) 746185222Ssam continue; /* child creates own inode */ 747185222Ssam 748185222Ssam /* build on-disk inode */ 749185222Ssam if (fsopts->version == 1) 750185222Ssam membuf = ffs_build_dinode1(&din.ffs1_din, &dirbuf, cur, 751185222Ssam root, fsopts); 752185222Ssam else 753185222Ssam membuf = ffs_build_dinode2(&din.ffs2_din, &dirbuf, cur, 754185222Ssam root, fsopts); 755185222Ssam 756185222Ssam if (debug & DEBUG_FS_POPULATE_NODE) { 757185222Ssam printf("ffs_populate_dir: writing ino %d, %s", 758185222Ssam cur->inode->ino, inode_type(cur->type)); 759185222Ssam if (cur->inode->nlink > 1) 760185222Ssam printf(", nlink %d", cur->inode->nlink); 761185222Ssam putchar('\n'); 762185222Ssam } 763185222Ssam 764185222Ssam if (membuf != NULL) { 765185222Ssam ffs_write_file(&din, cur->inode->ino, membuf, fsopts); 766185222Ssam } else if (S_ISREG(cur->type)) { 767185222Ssam ffs_write_file(&din, cur->inode->ino, path, fsopts); 768185222Ssam } else { 769185222Ssam assert (! S_ISDIR(cur->type)); 770185222Ssam ffs_write_inode(&din, cur->inode->ino, fsopts); 771185222Ssam } 772185222Ssam } 773185222Ssam 774185222Ssam /* 775185222Ssam * pass 3: write out sub-directories 776185222Ssam */ 777185222Ssam if (debug & DEBUG_FS_POPULATE) 778185222Ssam printf("ffs_populate_dir: PASS 3 dir %s\n", dir); 779185222Ssam for (cur = root; cur != NULL; cur = cur->next) { 780185222Ssam if (FSNODE_EXCLUDE_P(fsopts, cur)) 781185222Ssam continue; 782185222Ssam if (cur->child == NULL) 783185222Ssam continue; 784185222Ssam if (snprintf(path, sizeof(path), "%s/%s", dir, cur->name) 785185222Ssam >= sizeof(path)) 786185222Ssam errx(1, "Pathname too long."); 787185222Ssam if (! ffs_populate_dir(path, cur->child, fsopts)) 788185222Ssam return (0); 789185222Ssam } 790185222Ssam 791185222Ssam if (debug & DEBUG_FS_POPULATE) 792185222Ssam printf("ffs_populate_dir: DONE dir %s\n", dir); 793185222Ssam 794185222Ssam /* cleanup */ 795185222Ssam if (dirbuf.buf != NULL) 796185222Ssam free(dirbuf.buf); 797185222Ssam return (1); 798185222Ssam} 799185222Ssam 800185222Ssam 801185222Ssamstatic void 802185222Ssamffs_write_file(union dinode *din, uint32_t ino, void *buf, fsinfo_t *fsopts) 803185222Ssam{ 804185222Ssam int isfile, ffd; 805185222Ssam char *fbuf, *p; 806185222Ssam off_t bufleft, chunk, offset; 807185222Ssam struct inode in; 808185222Ssam struct buf * bp; 809185222Ssam 810185222Ssam assert (din != NULL); 811185222Ssam assert (buf != NULL); 812185222Ssam assert (fsopts != NULL); 813185222Ssam 814185222Ssam isfile = S_ISREG(DIP(din, mode)); 815185222Ssam fbuf = NULL; 816185222Ssam ffd = -1; 817185222Ssam 818185222Ssam in.i_fs = (struct fs *)fsopts->superblock; 819185222Ssam 820185222Ssam if (debug & DEBUG_FS_WRITE_FILE) { 821185222Ssam printf( 822185222Ssam "ffs_write_file: ino %u, din %p, isfile %d, %s, size %lld", 823185222Ssam ino, din, isfile, inode_type(DIP(din, mode) & S_IFMT), 824185222Ssam (long long)DIP(din, size)); 825185222Ssam if (isfile) 826185222Ssam printf(", file '%s'\n", (char *)buf); 827185222Ssam else 828185222Ssam printf(", buffer %p\n", buf); 829185222Ssam } 830185222Ssam 831185222Ssam in.i_number = ino; 832185222Ssam in.i_size = DIP(din, size); 833185222Ssam if (fsopts->version == 1) 834185222Ssam memcpy(&in.i_din.ffs1_din, &din->ffs1_din, 835185222Ssam sizeof(in.i_din.ffs1_din)); 836185222Ssam else 837185222Ssam memcpy(&in.i_din.ffs2_din, &din->ffs2_din, 838185222Ssam sizeof(in.i_din.ffs2_din)); 839185222Ssam in.i_fd = fsopts->fd; 840185222Ssam 841185222Ssam if (DIP(din, size) == 0) 842185222Ssam goto write_inode_and_leave; /* mmm, cheating */ 843185222Ssam 844185222Ssam if (isfile) { 845185222Ssam if ((fbuf = malloc(fsopts->bsize)) == NULL) 846185222Ssam err(1, "Allocating memory for write buffer"); 847185222Ssam if ((ffd = open((char *)buf, O_RDONLY, 0444)) == -1) { 848185222Ssam warn("Can't open `%s' for reading", (char *)buf); 849185222Ssam goto leave_ffs_write_file; 850185222Ssam } 851185222Ssam } else { 852185222Ssam p = buf; 853185222Ssam } 854185222Ssam 855185222Ssam chunk = 0; 856185222Ssam for (bufleft = DIP(din, size); bufleft > 0; bufleft -= chunk) { 857185222Ssam chunk = MIN(bufleft, fsopts->bsize); 858185222Ssam if (isfile) { 859185222Ssam if (read(ffd, fbuf, chunk) != chunk) 860185222Ssam err(1, "Reading `%s', %lld bytes to go", 861185222Ssam (char *)buf, (long long)bufleft); 862185222Ssam p = fbuf; 863185222Ssam } 864185222Ssam offset = DIP(din, size) - bufleft; 865185222Ssam if (debug & DEBUG_FS_WRITE_FILE_BLOCK) 866185222Ssam printf( 867185222Ssam "ffs_write_file: write %p offset %lld size %lld left %lld\n", 868185222Ssam p, (long long)offset, 869185222Ssam (long long)chunk, (long long)bufleft); 870185222Ssam /* 871185222Ssam * XXX if holey support is desired, do the check here 872185222Ssam * 873185222Ssam * XXX might need to write out last bit in fragroundup 874185222Ssam * sized chunk. however, ffs_balloc() handles this for us 875185222Ssam */ 876185222Ssam errno = ffs_balloc(&in, offset, chunk, &bp); 877185222Ssam bad_ffs_write_file: 878185222Ssam if (errno != 0) 879185222Ssam err(1, 880185222Ssam "Writing inode %d (%s), bytes %lld + %lld", 881185222Ssam ino, 882185222Ssam isfile ? (char *)buf : 883185222Ssam inode_type(DIP(din, mode) & S_IFMT), 884185222Ssam (long long)offset, (long long)chunk); 885185222Ssam memcpy(bp->b_data, p, chunk); 886185222Ssam errno = bwrite(bp); 887185222Ssam if (errno != 0) 888185222Ssam goto bad_ffs_write_file; 889185222Ssam brelse(bp); 890185222Ssam if (!isfile) 891185222Ssam p += chunk; 892185222Ssam } 893185222Ssam 894185222Ssam write_inode_and_leave: 895185222Ssam ffs_write_inode(&in.i_din, in.i_number, fsopts); 896185222Ssam 897185222Ssam leave_ffs_write_file: 898185222Ssam if (fbuf) 899185222Ssam free(fbuf); 900185222Ssam if (ffd != -1) 901185222Ssam close(ffd); 902185222Ssam} 903185222Ssam 904185222Ssam 905185222Ssamstatic void 906185222Ssamffs_dump_dirbuf(dirbuf_t *dbuf, const char *dir, int needswap) 907185222Ssam{ 908185222Ssam doff_t i; 909185222Ssam struct direct *de; 910185222Ssam uint16_t reclen; 911185222Ssam 912185222Ssam assert (dbuf != NULL); 913185222Ssam assert (dir != NULL); 914185222Ssam printf("ffs_dump_dirbuf: dir %s size %d cur %d\n", 915185222Ssam dir, dbuf->size, dbuf->cur); 916185222Ssam 917185222Ssam for (i = 0; i < dbuf->size; ) { 918185222Ssam de = (struct direct *)(dbuf->buf + i); 919185222Ssam reclen = ufs_rw16(de->d_reclen, needswap); 920185222Ssam printf( 921185222Ssam " inode %4d %7s offset %4d reclen %3d namlen %3d name %s\n", 922185222Ssam ufs_rw32(de->d_ino, needswap), 923185222Ssam inode_type(DTTOIF(de->d_type)), i, reclen, 924185222Ssam de->d_namlen, de->d_name); 925185222Ssam i += reclen; 926185222Ssam assert(reclen > 0); 927185222Ssam } 928185222Ssam} 929185222Ssam 930185222Ssamstatic void 931185222Ssamffs_make_dirbuf(dirbuf_t *dbuf, const char *name, fsnode *node, int needswap) 932185222Ssam{ 933185222Ssam struct direct de, *dp; 934185222Ssam uint16_t llen, reclen; 935185222Ssam char *newbuf; 936185222Ssam 937185222Ssam assert (dbuf != NULL); 938185222Ssam assert (name != NULL); 939185222Ssam assert (node != NULL); 940185222Ssam /* create direct entry */ 941185222Ssam (void)memset(&de, 0, sizeof(de)); 942185222Ssam de.d_ino = ufs_rw32(node->inode->ino, needswap); 943185222Ssam de.d_type = IFTODT(node->type); 944185222Ssam de.d_namlen = (uint8_t)strlen(name); 945185222Ssam strcpy(de.d_name, name); 946186261Ssam reclen = DIRSIZ_SWAP(0, &de, needswap); 947185222Ssam de.d_reclen = ufs_rw16(reclen, needswap); 948185222Ssam 949185222Ssam dp = (struct direct *)(dbuf->buf + dbuf->cur); 950185222Ssam llen = 0; 951185222Ssam if (dp != NULL) 952186261Ssam llen = DIRSIZ_SWAP(0, dp, needswap); 953185222Ssam 954185222Ssam if (debug & DEBUG_FS_MAKE_DIRBUF) 955185222Ssam printf( 956185222Ssam "ffs_make_dirbuf: dbuf siz %d cur %d lastlen %d\n" 957185222Ssam " ino %d type %d reclen %d namlen %d name %.30s\n", 958185222Ssam dbuf->size, dbuf->cur, llen, 959185222Ssam ufs_rw32(de.d_ino, needswap), de.d_type, reclen, 960185222Ssam de.d_namlen, de.d_name); 961185222Ssam 962185222Ssam if (reclen + dbuf->cur + llen > roundup(dbuf->size, DIRBLKSIZ)) { 963185222Ssam if (debug & DEBUG_FS_MAKE_DIRBUF) 964185222Ssam printf("ffs_make_dirbuf: growing buf to %d\n", 965185222Ssam dbuf->size + DIRBLKSIZ); 966185222Ssam if ((newbuf = realloc(dbuf->buf, dbuf->size + DIRBLKSIZ)) == NULL) 967185222Ssam err(1, "Allocating memory for directory buffer"); 968185222Ssam dbuf->buf = newbuf; 969185222Ssam dbuf->size += DIRBLKSIZ; 970185222Ssam memset(dbuf->buf + dbuf->size - DIRBLKSIZ, 0, DIRBLKSIZ); 971185222Ssam dbuf->cur = dbuf->size - DIRBLKSIZ; 972185222Ssam } else { /* shrink end of previous */ 973185222Ssam dp->d_reclen = ufs_rw16(llen,needswap); 974185222Ssam dbuf->cur += llen; 975185222Ssam } 976185222Ssam dp = (struct direct *)(dbuf->buf + dbuf->cur); 977185222Ssam memcpy(dp, &de, reclen); 978185222Ssam dp->d_reclen = ufs_rw16(dbuf->size - dbuf->cur, needswap); 979185222Ssam} 980185222Ssam 981185222Ssam/* 982185222Ssam * cribbed from sys/ufs/ffs/ffs_alloc.c 983185222Ssam */ 984185222Ssamstatic void 985185222Ssamffs_write_inode(union dinode *dp, uint32_t ino, const fsinfo_t *fsopts) 986185222Ssam{ 987185222Ssam char *buf; 988185222Ssam struct ufs1_dinode *dp1; 989185222Ssam struct ufs2_dinode *dp2, *dip; 990185222Ssam struct cg *cgp; 991185222Ssam struct fs *fs; 992185222Ssam int cg, cgino, i; 993185222Ssam daddr_t d; 994185222Ssam char sbbuf[FFS_MAXBSIZE]; 995185222Ssam int32_t initediblk; 996185222Ssam 997185222Ssam assert (dp != NULL); 998185222Ssam assert (ino > 0); 999185222Ssam assert (fsopts != NULL); 1000185222Ssam 1001185222Ssam fs = (struct fs *)fsopts->superblock; 1002185222Ssam cg = ino_to_cg(fs, ino); 1003185222Ssam cgino = ino % fs->fs_ipg; 1004185222Ssam if (debug & DEBUG_FS_WRITE_INODE) 1005185222Ssam printf("ffs_write_inode: din %p ino %u cg %d cgino %d\n", 1006185222Ssam dp, ino, cg, cgino); 1007185222Ssam 1008185222Ssam ffs_rdfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1009185222Ssam fsopts); 1010185222Ssam cgp = (struct cg *)sbbuf; 1011186261Ssam if (!cg_chkmagic_swap(cgp, fsopts->needswap)) 1012185222Ssam errx(1, "ffs_write_inode: cg %d: bad magic number", cg); 1013185222Ssam 1014186261Ssam assert (isclr(cg_inosused_swap(cgp, fsopts->needswap), cgino)); 1015185222Ssam 1016185222Ssam buf = malloc(fs->fs_bsize); 1017185222Ssam if (buf == NULL) 1018185222Ssam errx(1, "ffs_write_inode: cg %d: can't alloc inode block", cg); 1019185222Ssam 1020185222Ssam dp1 = (struct ufs1_dinode *)buf; 1021185222Ssam dp2 = (struct ufs2_dinode *)buf; 1022185222Ssam 1023185222Ssam if (fs->fs_cstotal.cs_nifree == 0) 1024185222Ssam errx(1, "ffs_write_inode: fs out of inodes for ino %u", 1025185222Ssam ino); 1026185222Ssam if (fs->fs_cs(fs, cg).cs_nifree == 0) 1027185222Ssam errx(1, 1028185222Ssam "ffs_write_inode: cg %d out of inodes for ino %u", 1029185222Ssam cg, ino); 1030186261Ssam setbit(cg_inosused_swap(cgp, fsopts->needswap), cgino); 1031185222Ssam ufs_add32(cgp->cg_cs.cs_nifree, -1, fsopts->needswap); 1032185222Ssam fs->fs_cstotal.cs_nifree--; 1033185222Ssam fs->fs_cs(fs, cg).cs_nifree--; 1034185222Ssam if (S_ISDIR(DIP(dp, mode))) { 1035185222Ssam ufs_add32(cgp->cg_cs.cs_ndir, 1, fsopts->needswap); 1036185222Ssam fs->fs_cstotal.cs_ndir++; 1037185222Ssam fs->fs_cs(fs, cg).cs_ndir++; 1038185222Ssam } 1039185222Ssam 1040185222Ssam /* 1041185222Ssam * Initialize inode blocks on the fly for UFS2. 1042185222Ssam */ 1043185222Ssam initediblk = ufs_rw32(cgp->cg_initediblk, fsopts->needswap); 1044185222Ssam if (fsopts->version == 2 && cgino + INOPB(fs) > initediblk && 1045185222Ssam initediblk < ufs_rw32(cgp->cg_niblk, fsopts->needswap)) { 1046185222Ssam memset(buf, 0, fs->fs_bsize); 1047185222Ssam dip = (struct ufs2_dinode *)buf; 1048185222Ssam srandom(time(NULL)); 1049185222Ssam for (i = 0; i < INOPB(fs); i++) { 1050185222Ssam dip->di_gen = random() / 2 + 1; 1051185222Ssam dip++; 1052185222Ssam } 1053185222Ssam ffs_wtfs(fsbtodb(fs, ino_to_fsba(fs, 1054185222Ssam cg * fs->fs_ipg + initediblk)), 1055185222Ssam fs->fs_bsize, buf, fsopts); 1056185222Ssam initediblk += INOPB(fs); 1057185222Ssam cgp->cg_initediblk = ufs_rw32(initediblk, fsopts->needswap); 1058185222Ssam } 1059185222Ssam 1060185222Ssam 1061185222Ssam ffs_wtfs(fsbtodb(fs, cgtod(fs, cg)), (int)fs->fs_cgsize, &sbbuf, 1062185222Ssam fsopts); 1063185222Ssam 1064185222Ssam /* now write inode */ 1065185222Ssam d = fsbtodb(fs, ino_to_fsba(fs, ino)); 1066185222Ssam ffs_rdfs(d, fs->fs_bsize, buf, fsopts); 1067185222Ssam if (fsopts->needswap) { 1068185222Ssam if (fsopts->version == 1) 1069185222Ssam ffs_dinode1_swap(&dp->ffs1_din, 1070185222Ssam &dp1[ino_to_fsbo(fs, ino)]); 1071185222Ssam else 1072185222Ssam ffs_dinode2_swap(&dp->ffs2_din, 1073185222Ssam &dp2[ino_to_fsbo(fs, ino)]); 1074185222Ssam } else { 1075185222Ssam if (fsopts->version == 1) 1076185222Ssam dp1[ino_to_fsbo(fs, ino)] = dp->ffs1_din; 1077185222Ssam else 1078185222Ssam dp2[ino_to_fsbo(fs, ino)] = dp->ffs2_din; 1079185222Ssam } 1080185222Ssam ffs_wtfs(d, fs->fs_bsize, buf, fsopts); 1081185222Ssam free(buf); 1082185222Ssam} 1083185222Ssam 1084185222Ssamvoid 1085185222Ssampanic(const char *fmt, ...) 1086185222Ssam{ 1087185222Ssam va_list ap; 1088185222Ssam 1089185222Ssam va_start(ap, fmt); 1090185222Ssam vwarnx(fmt, ap); 1091185222Ssam va_end(ap); 1092185222Ssam exit(1); 1093185222Ssam} 1094