ffs_bswap.c revision 1.1.2.2
1 1.1.2.2 cjep /* $NetBSD: ffs_bswap.c,v 1.1.2.2 2021/05/31 22:15:21 cjep Exp $ */ 2 1.1.2.2 cjep 3 1.1.2.2 cjep /* 4 1.1.2.2 cjep * Copyright (c) 1998 Manuel Bouyer. 5 1.1.2.2 cjep * 6 1.1.2.2 cjep * Redistribution and use in source and binary forms, with or without 7 1.1.2.2 cjep * modification, are permitted provided that the following conditions 8 1.1.2.2 cjep * are met: 9 1.1.2.2 cjep * 1. Redistributions of source code must retain the above copyright 10 1.1.2.2 cjep * notice, this list of conditions and the following disclaimer. 11 1.1.2.2 cjep * 2. Redistributions in binary form must reproduce the above copyright 12 1.1.2.2 cjep * notice, this list of conditions and the following disclaimer in the 13 1.1.2.2 cjep * documentation and/or other materials provided with the distribution. 14 1.1.2.2 cjep * 15 1.1.2.2 cjep * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 1.1.2.2 cjep * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 1.1.2.2 cjep * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 1.1.2.2 cjep * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 1.1.2.2 cjep * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 1.1.2.2 cjep * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 1.1.2.2 cjep * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 1.1.2.2 cjep * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 1.1.2.2 cjep * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 1.1.2.2 cjep * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 1.1.2.2 cjep * 26 1.1.2.2 cjep */ 27 1.1.2.2 cjep 28 1.1.2.2 cjep /* 29 1.1.2.2 cjep * This copy is a minimal version for libsa and it's ufs.c. The unused 30 1.1.2.2 cjep * functions are removed, and additional swapping is performed on the 31 1.1.2.2 cjep * di_extb, di_db, and di_ib arrays. 32 1.1.2.2 cjep */ 33 1.1.2.2 cjep 34 1.1.2.2 cjep #include <sys/cdefs.h> 35 1.1.2.2 cjep __KERNEL_RCSID(0, "$NetBSD: ffs_bswap.c,v 1.1.2.2 2021/05/31 22:15:21 cjep Exp $"); 36 1.1.2.2 cjep 37 1.1.2.2 cjep #include <sys/param.h> 38 1.1.2.2 cjep #include <lib/libkern/libkern.h> 39 1.1.2.2 cjep 40 1.1.2.2 cjep #include <ufs/ufs/dinode.h> 41 1.1.2.2 cjep #include <ufs/ufs/quota.h> 42 1.1.2.2 cjep #include <ufs/ufs/ufs_bswap.h> 43 1.1.2.2 cjep #include <ufs/ffs/fs.h> 44 1.1.2.2 cjep #include <ufs/ffs/ffs_extern.h> 45 1.1.2.2 cjep 46 1.1.2.2 cjep static void 47 1.1.2.2 cjep libsa_ffs_csumtotal_swap(const struct csum_total *o, struct csum_total *n) 48 1.1.2.2 cjep { 49 1.1.2.2 cjep n->cs_ndir = bswap64(o->cs_ndir); 50 1.1.2.2 cjep n->cs_nbfree = bswap64(o->cs_nbfree); 51 1.1.2.2 cjep n->cs_nifree = bswap64(o->cs_nifree); 52 1.1.2.2 cjep n->cs_nffree = bswap64(o->cs_nffree); 53 1.1.2.2 cjep } 54 1.1.2.2 cjep 55 1.1.2.2 cjep void 56 1.1.2.2 cjep ffs_sb_swap(const struct fs *o, struct fs *n) 57 1.1.2.2 cjep { 58 1.1.2.2 cjep size_t i; 59 1.1.2.2 cjep const u_int32_t *o32; 60 1.1.2.2 cjep u_int32_t *n32; 61 1.1.2.2 cjep 62 1.1.2.2 cjep /* 63 1.1.2.2 cjep * In order to avoid a lot of lines, as the first N fields (52) 64 1.1.2.2 cjep * of the superblock up to fs_fmod are u_int32_t, we just loop 65 1.1.2.2 cjep * here to convert them. 66 1.1.2.2 cjep */ 67 1.1.2.2 cjep o32 = (const u_int32_t *)o; 68 1.1.2.2 cjep n32 = (u_int32_t *)n; 69 1.1.2.2 cjep for (i = 0; i < offsetof(struct fs, fs_fmod) / sizeof(u_int32_t); i++) 70 1.1.2.2 cjep n32[i] = bswap32(o32[i]); 71 1.1.2.2 cjep 72 1.1.2.2 cjep n->fs_swuid = bswap64(o->fs_swuid); 73 1.1.2.2 cjep n->fs_cgrotor = bswap32(o->fs_cgrotor); /* Unused */ 74 1.1.2.2 cjep n->fs_old_cpc = bswap32(o->fs_old_cpc); 75 1.1.2.2 cjep 76 1.1.2.2 cjep /* These fields overlap with a possible location for the 77 1.1.2.2 cjep * historic FS_DYNAMICPOSTBLFMT postbl table, and with the 78 1.1.2.2 cjep * first half of the historic FS_42POSTBLFMT postbl table. 79 1.1.2.2 cjep */ 80 1.1.2.2 cjep n->fs_maxbsize = bswap32(o->fs_maxbsize); 81 1.1.2.2 cjep /* XXX journal */ 82 1.1.2.2 cjep n->fs_quota_magic = bswap32(o->fs_quota_magic); 83 1.1.2.2 cjep for (i = 0; i < MAXQUOTAS; i++) 84 1.1.2.2 cjep n->fs_quotafile[i] = bswap64(o->fs_quotafile[i]); 85 1.1.2.2 cjep n->fs_sblockloc = bswap64(o->fs_sblockloc); 86 1.1.2.2 cjep libsa_ffs_csumtotal_swap(&o->fs_cstotal, &n->fs_cstotal); 87 1.1.2.2 cjep n->fs_time = bswap64(o->fs_time); 88 1.1.2.2 cjep n->fs_size = bswap64(o->fs_size); 89 1.1.2.2 cjep n->fs_dsize = bswap64(o->fs_dsize); 90 1.1.2.2 cjep n->fs_csaddr = bswap64(o->fs_csaddr); 91 1.1.2.2 cjep n->fs_pendingblocks = bswap64(o->fs_pendingblocks); 92 1.1.2.2 cjep n->fs_pendinginodes = bswap32(o->fs_pendinginodes); 93 1.1.2.2 cjep 94 1.1.2.2 cjep /* These fields overlap with the second half of the 95 1.1.2.2 cjep * historic FS_42POSTBLFMT postbl table 96 1.1.2.2 cjep */ 97 1.1.2.2 cjep for (i = 0; i < FSMAXSNAP; i++) 98 1.1.2.2 cjep n->fs_snapinum[i] = bswap32(o->fs_snapinum[i]); 99 1.1.2.2 cjep n->fs_avgfilesize = bswap32(o->fs_avgfilesize); 100 1.1.2.2 cjep n->fs_avgfpdir = bswap32(o->fs_avgfpdir); 101 1.1.2.2 cjep /* fs_sparecon[28] - ignore for now */ 102 1.1.2.2 cjep n->fs_flags = bswap32(o->fs_flags); 103 1.1.2.2 cjep n->fs_contigsumsize = bswap32(o->fs_contigsumsize); 104 1.1.2.2 cjep n->fs_maxsymlinklen = bswap32(o->fs_maxsymlinklen); 105 1.1.2.2 cjep n->fs_old_inodefmt = bswap32(o->fs_old_inodefmt); 106 1.1.2.2 cjep n->fs_maxfilesize = bswap64(o->fs_maxfilesize); 107 1.1.2.2 cjep n->fs_qbmask = bswap64(o->fs_qbmask); 108 1.1.2.2 cjep n->fs_qfmask = bswap64(o->fs_qfmask); 109 1.1.2.2 cjep n->fs_state = bswap32(o->fs_state); 110 1.1.2.2 cjep n->fs_old_postblformat = bswap32(o->fs_old_postblformat); 111 1.1.2.2 cjep n->fs_old_nrpos = bswap32(o->fs_old_nrpos); 112 1.1.2.2 cjep n->fs_old_postbloff = bswap32(o->fs_old_postbloff); 113 1.1.2.2 cjep n->fs_old_rotbloff = bswap32(o->fs_old_rotbloff); 114 1.1.2.2 cjep 115 1.1.2.2 cjep n->fs_magic = bswap32(o->fs_magic); 116 1.1.2.2 cjep } 117 1.1.2.2 cjep 118 1.1.2.2 cjep void 119 1.1.2.2 cjep ffs_dinode1_swap(struct ufs1_dinode *o, struct ufs1_dinode *n) 120 1.1.2.2 cjep { 121 1.1.2.2 cjep size_t i; 122 1.1.2.2 cjep 123 1.1.2.2 cjep n->di_mode = bswap16(o->di_mode); 124 1.1.2.2 cjep n->di_nlink = bswap16(o->di_nlink); 125 1.1.2.2 cjep n->di_oldids[0] = bswap16(o->di_oldids[0]); 126 1.1.2.2 cjep n->di_oldids[1] = bswap16(o->di_oldids[1]); 127 1.1.2.2 cjep n->di_size = bswap64(o->di_size); 128 1.1.2.2 cjep n->di_atime = bswap32(o->di_atime); 129 1.1.2.2 cjep n->di_atimensec = bswap32(o->di_atimensec); 130 1.1.2.2 cjep n->di_mtime = bswap32(o->di_mtime); 131 1.1.2.2 cjep n->di_mtimensec = bswap32(o->di_mtimensec); 132 1.1.2.2 cjep n->di_ctime = bswap32(o->di_ctime); 133 1.1.2.2 cjep n->di_ctimensec = bswap32(o->di_ctimensec); 134 1.1.2.2 cjep /* Swap these here, unlike kernel version .*/ 135 1.1.2.2 cjep for (i = 0; i < UFS_NDADDR; i++) 136 1.1.2.2 cjep n->di_db[i] = bswap32(o->di_db[i]); 137 1.1.2.2 cjep for (i = 0; i < UFS_NIADDR; i++) 138 1.1.2.2 cjep n->di_ib[i] = bswap32(o->di_ib[i]); 139 1.1.2.2 cjep n->di_flags = bswap32(o->di_flags); 140 1.1.2.2 cjep n->di_blocks = bswap32(o->di_blocks); 141 1.1.2.2 cjep n->di_gen = bswap32(o->di_gen); 142 1.1.2.2 cjep n->di_uid = bswap32(o->di_uid); 143 1.1.2.2 cjep n->di_gid = bswap32(o->di_gid); 144 1.1.2.2 cjep } 145 1.1.2.2 cjep 146 1.1.2.2 cjep void 147 1.1.2.2 cjep ffs_dinode2_swap(struct ufs2_dinode *o, struct ufs2_dinode *n) 148 1.1.2.2 cjep { 149 1.1.2.2 cjep size_t i; 150 1.1.2.2 cjep 151 1.1.2.2 cjep n->di_mode = bswap16(o->di_mode); 152 1.1.2.2 cjep n->di_nlink = bswap16(o->di_nlink); 153 1.1.2.2 cjep n->di_uid = bswap32(o->di_uid); 154 1.1.2.2 cjep n->di_gid = bswap32(o->di_gid); 155 1.1.2.2 cjep n->di_blksize = bswap32(o->di_blksize); 156 1.1.2.2 cjep n->di_size = bswap64(o->di_size); 157 1.1.2.2 cjep n->di_blocks = bswap64(o->di_blocks); 158 1.1.2.2 cjep n->di_atime = bswap64(o->di_atime); 159 1.1.2.2 cjep n->di_atimensec = bswap32(o->di_atimensec); 160 1.1.2.2 cjep n->di_mtime = bswap64(o->di_mtime); 161 1.1.2.2 cjep n->di_mtimensec = bswap32(o->di_mtimensec); 162 1.1.2.2 cjep n->di_ctime = bswap64(o->di_ctime); 163 1.1.2.2 cjep n->di_ctimensec = bswap32(o->di_ctimensec); 164 1.1.2.2 cjep n->di_birthtime = bswap64(o->di_birthtime); 165 1.1.2.2 cjep n->di_birthnsec = bswap32(o->di_birthnsec); 166 1.1.2.2 cjep n->di_gen = bswap32(o->di_gen); 167 1.1.2.2 cjep n->di_kernflags = bswap32(o->di_kernflags); 168 1.1.2.2 cjep n->di_flags = bswap32(o->di_flags); 169 1.1.2.2 cjep n->di_extsize = bswap32(o->di_extsize); 170 1.1.2.2 cjep /* Swap these here, unlike kernel version .*/ 171 1.1.2.2 cjep for (i = 0; i < UFS_NXADDR; i++) 172 1.1.2.2 cjep n->di_extb[i] = bswap64(o->di_extb[i]); 173 1.1.2.2 cjep for (i = 0; i < UFS_NDADDR; i++) 174 1.1.2.2 cjep n->di_db[i] = bswap64(o->di_db[i]); 175 1.1.2.2 cjep for (i = 0; i < UFS_NIADDR; i++) 176 1.1.2.2 cjep n->di_ib[i] = bswap64(o->di_ib[i]); 177 1.1.2.2 cjep } 178
Indexes created Mon Oct 27 02:09:54 GMT 2025