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[/] [eco32/] [tags/] [eco32-0.24/] [disk/] [tools/] [fs-NetBSD/] [makefs/] [ffs_bswap.c] - Rev 17
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/* $NetBSD: ffs_bswap.c,v 1.35 2011/03/06 17:08:38 bouyer Exp $ */ /* * Copyright (c) 1998 Manuel Bouyer. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #if HAVE_NBTOOL_CONFIG_H #include "nbtool_config.h" #endif #include <sys/cdefs.h> #if defined(__KERNEL_RCSID) && !defined(__lint) __KERNEL_RCSID(0, "$NetBSD: ffs_bswap.c,v 1.35 2011/03/06 17:08:38 bouyer Exp $"); #endif #include <sys/param.h> #if defined(_KERNEL) #include <sys/systm.h> #endif #include "common.h" #include "dinode.h" #include "ufs_inode.h" //#include <ufs/ufs/quota.h> #include "ufs_bswap.h" #include "fs.h" #include "ffs_extern.h" #if !defined(_KERNEL) #include <stddef.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #define panic(x) printf("%s\n", (x)), abort() #endif void ffs_csumtotal_swap(struct csum_total *o, struct csum_total *n); void ffs_sb_swap(struct fs *o, struct fs *n) { size_t i; u_int32_t *o32, *n32; /* * In order to avoid a lot of lines, as the first N fields (52) * of the superblock up to fs_fmod are u_int32_t, we just loop * here to convert them. */ o32 = (u_int32_t *)o; n32 = (u_int32_t *)n; for (i = 0; i < offsetof(struct fs, fs_fmod) / sizeof(u_int32_t); i++) n32[i] = bswap32(o32[i]); n->fs_swuid = bswap64(o->fs_swuid); n->fs_cgrotor = bswap32(o->fs_cgrotor); /* Unused */ n->fs_old_cpc = bswap32(o->fs_old_cpc); /* These fields overlap with a possible location for the * historic FS_DYNAMICPOSTBLFMT postbl table, and with the * first half of the historic FS_42POSTBLFMT postbl table. */ n->fs_maxbsize = bswap32(o->fs_maxbsize); /* XXX journal */ n->fs_quota_magic = bswap32(o->fs_quota_magic); for (i = 0; i < MAXQUOTAS; i++) n->fs_quotafile[i] = bswap64(o->fs_quotafile[i]); n->fs_sblockloc = bswap64(o->fs_sblockloc); ffs_csumtotal_swap(&o->fs_cstotal, &n->fs_cstotal); n->fs_time = bswap64(o->fs_time); n->fs_size = bswap64(o->fs_size); n->fs_dsize = bswap64(o->fs_dsize); n->fs_csaddr = bswap64(o->fs_csaddr); n->fs_pendingblocks = bswap64(o->fs_pendingblocks); n->fs_pendinginodes = bswap32(o->fs_pendinginodes); /* These fields overlap with the second half of the * historic FS_42POSTBLFMT postbl table */ for (i = 0; i < FSMAXSNAP; i++) n->fs_snapinum[i] = bswap32(o->fs_snapinum[i]); n->fs_avgfilesize = bswap32(o->fs_avgfilesize); n->fs_avgfpdir = bswap32(o->fs_avgfpdir); /* fs_sparecon[28] - ignore for now */ n->fs_flags = bswap32(o->fs_flags); n->fs_contigsumsize = bswap32(o->fs_contigsumsize); n->fs_maxsymlinklen = bswap32(o->fs_maxsymlinklen); n->fs_old_inodefmt = bswap32(o->fs_old_inodefmt); n->fs_maxfilesize = bswap64(o->fs_maxfilesize); n->fs_qbmask = bswap64(o->fs_qbmask); n->fs_qfmask = bswap64(o->fs_qfmask); n->fs_state = bswap32(o->fs_state); n->fs_old_postblformat = bswap32(o->fs_old_postblformat); n->fs_old_nrpos = bswap32(o->fs_old_nrpos); n->fs_old_postbloff = bswap32(o->fs_old_postbloff); n->fs_old_rotbloff = bswap32(o->fs_old_rotbloff); n->fs_magic = bswap32(o->fs_magic); } void ffs_dinode1_swap(struct ufs1_dinode *o, struct ufs1_dinode *n) { n->di_mode = bswap16(o->di_mode); n->di_nlink = bswap16(o->di_nlink); n->di_u.oldids[0] = bswap16(o->di_u.oldids[0]); n->di_u.oldids[1] = bswap16(o->di_u.oldids[1]); n->di_size = bswap64(o->di_size); n->di_atime = bswap32(o->di_atime); n->di_atimensec = bswap32(o->di_atimensec); n->di_mtime = bswap32(o->di_mtime); n->di_mtimensec = bswap32(o->di_mtimensec); n->di_ctime = bswap32(o->di_ctime); n->di_ctimensec = bswap32(o->di_ctimensec); memcpy(n->di_db, o->di_db, (NDADDR + NIADDR) * sizeof(u_int32_t)); n->di_flags = bswap32(o->di_flags); n->di_blocks = bswap32(o->di_blocks); n->di_gen = bswap32(o->di_gen); n->di_uid = bswap32(o->di_uid); n->di_gid = bswap32(o->di_gid); } void ffs_dinode2_swap(struct ufs2_dinode *o, struct ufs2_dinode *n) { n->di_mode = bswap16(o->di_mode); n->di_nlink = bswap16(o->di_nlink); n->di_uid = bswap32(o->di_uid); n->di_gid = bswap32(o->di_gid); n->di_blksize = bswap32(o->di_blksize); n->di_size = bswap64(o->di_size); n->di_blocks = bswap64(o->di_blocks); n->di_atime = bswap64(o->di_atime); n->di_atimensec = bswap32(o->di_atimensec); n->di_mtime = bswap64(o->di_mtime); n->di_mtimensec = bswap32(o->di_mtimensec); n->di_ctime = bswap64(o->di_ctime); n->di_ctimensec = bswap32(o->di_ctimensec); n->di_birthtime = bswap64(o->di_birthtime); n->di_birthnsec = bswap32(o->di_birthnsec); n->di_gen = bswap32(o->di_gen); n->di_kernflags = bswap32(o->di_kernflags); n->di_flags = bswap32(o->di_flags); n->di_extsize = bswap32(o->di_extsize); memcpy(n->di_extb, o->di_extb, (NXADDR + NDADDR + NIADDR) * 8); } void ffs_csum_swap(struct csum *o, struct csum *n, int size) { size_t i; u_int32_t *oint, *nint; oint = (u_int32_t*)o; nint = (u_int32_t*)n; for (i = 0; i < size / sizeof(u_int32_t); i++) nint[i] = bswap32(oint[i]); } void ffs_csumtotal_swap(struct csum_total *o, struct csum_total *n) { n->cs_ndir = bswap64(o->cs_ndir); n->cs_nbfree = bswap64(o->cs_nbfree); n->cs_nifree = bswap64(o->cs_nifree); n->cs_nffree = bswap64(o->cs_nffree); } /* * Note that ffs_cg_swap may be called with o == n. */ void ffs_cg_swap(struct cg *o, struct cg *n, struct fs *fs) { int i; u_int32_t *n32, *o32; u_int16_t *n16, *o16; int32_t btotoff, boff, clustersumoff; n->cg_firstfield = bswap32(o->cg_firstfield); n->cg_magic = bswap32(o->cg_magic); n->cg_old_time = bswap32(o->cg_old_time); n->cg_cgx = bswap32(o->cg_cgx); n->cg_old_ncyl = bswap16(o->cg_old_ncyl); n->cg_old_niblk = bswap16(o->cg_old_niblk); n->cg_ndblk = bswap32(o->cg_ndblk); n->cg_cs.cs_ndir = bswap32(o->cg_cs.cs_ndir); n->cg_cs.cs_nbfree = bswap32(o->cg_cs.cs_nbfree); n->cg_cs.cs_nifree = bswap32(o->cg_cs.cs_nifree); n->cg_cs.cs_nffree = bswap32(o->cg_cs.cs_nffree); n->cg_rotor = bswap32(o->cg_rotor); n->cg_frotor = bswap32(o->cg_frotor); n->cg_irotor = bswap32(o->cg_irotor); for (i = 0; i < MAXFRAG; i++) n->cg_frsum[i] = bswap32(o->cg_frsum[i]); if ((fs->fs_magic != FS_UFS2_MAGIC) && (fs->fs_old_postblformat == FS_42POSTBLFMT)) { /* old format */ struct ocg *on, *oo; int j; on = (struct ocg *)n; oo = (struct ocg *)o; for (i = 0; i < 32; i++) { on->cg_btot[i] = bswap32(oo->cg_btot[i]); for (j = 0; j < 8; j++) on->cg_b[i][j] = bswap16(oo->cg_b[i][j]); } memmove(on->cg_iused, oo->cg_iused, 256); on->cg_magic = bswap32(oo->cg_magic); } else { /* new format */ n->cg_old_btotoff = bswap32(o->cg_old_btotoff); n->cg_old_boff = bswap32(o->cg_old_boff); n->cg_iusedoff = bswap32(o->cg_iusedoff); n->cg_freeoff = bswap32(o->cg_freeoff); n->cg_nextfreeoff = bswap32(o->cg_nextfreeoff); n->cg_clustersumoff = bswap32(o->cg_clustersumoff); n->cg_clusteroff = bswap32(o->cg_clusteroff); n->cg_nclusterblks = bswap32(o->cg_nclusterblks); n->cg_niblk = bswap32(o->cg_niblk); n->cg_initediblk = bswap32(o->cg_initediblk); n->cg_time = bswap64(o->cg_time); if (n->cg_magic == CG_MAGIC) { btotoff = n->cg_old_btotoff; boff = n->cg_old_boff; clustersumoff = n->cg_clustersumoff; } else { btotoff = bswap32(n->cg_old_btotoff); boff = bswap32(n->cg_old_boff); clustersumoff = bswap32(n->cg_clustersumoff); } n32 = (u_int32_t *)((u_int8_t *)n + clustersumoff); o32 = (u_int32_t *)((u_int8_t *)o + clustersumoff); for (i = 1; i < fs->fs_contigsumsize + 1; i++) n32[i] = bswap32(o32[i]); if (fs->fs_magic == FS_UFS2_MAGIC) return; n32 = (u_int32_t *)((u_int8_t *)n + btotoff); o32 = (u_int32_t *)((u_int8_t *)o + btotoff); n16 = (u_int16_t *)((u_int8_t *)n + boff); o16 = (u_int16_t *)((u_int8_t *)o + boff); for (i = 0; i < fs->fs_old_cpg; i++) n32[i] = bswap32(o32[i]); for (i = 0; i < fs->fs_old_cpg * fs->fs_old_nrpos; i++) n16[i] = bswap16(o16[i]); } }
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