1c72e7314SPoul-Henning Kamp /*- 2c72e7314SPoul-Henning Kamp * Copyright (c) 2002 Poul-Henning Kamp 3c72e7314SPoul-Henning Kamp * Copyright (c) 2002 Networks Associates Technology, Inc. 4c72e7314SPoul-Henning Kamp * All rights reserved. 5c72e7314SPoul-Henning Kamp * 6c72e7314SPoul-Henning Kamp * This software was developed for the FreeBSD Project by Poul-Henning Kamp 7c72e7314SPoul-Henning Kamp * and NAI Labs, the Security Research Division of Network Associates, Inc. 8c72e7314SPoul-Henning Kamp * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the 9c72e7314SPoul-Henning Kamp * DARPA CHATS research program. 10c72e7314SPoul-Henning Kamp * 11c72e7314SPoul-Henning Kamp * Redistribution and use in source and binary forms, with or without 12c72e7314SPoul-Henning Kamp * modification, are permitted provided that the following conditions 13c72e7314SPoul-Henning Kamp * are met: 14c72e7314SPoul-Henning Kamp * 1. Redistributions of source code must retain the above copyright 15c72e7314SPoul-Henning Kamp * notice, this list of conditions and the following disclaimer. 16c72e7314SPoul-Henning Kamp * 2. Redistributions in binary form must reproduce the above copyright 17c72e7314SPoul-Henning Kamp * notice, this list of conditions and the following disclaimer in the 18c72e7314SPoul-Henning Kamp * documentation and/or other materials provided with the distribution. 19c72e7314SPoul-Henning Kamp * 3. The names of the authors may not be used to endorse or promote 20c72e7314SPoul-Henning Kamp * products derived from this software without specific prior written 21c72e7314SPoul-Henning Kamp * permission. 22c72e7314SPoul-Henning Kamp * 23c72e7314SPoul-Henning Kamp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24c72e7314SPoul-Henning Kamp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25c72e7314SPoul-Henning Kamp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26c72e7314SPoul-Henning Kamp * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 27c72e7314SPoul-Henning Kamp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28c72e7314SPoul-Henning Kamp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29c72e7314SPoul-Henning Kamp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30c72e7314SPoul-Henning Kamp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31c72e7314SPoul-Henning Kamp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32c72e7314SPoul-Henning Kamp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33c72e7314SPoul-Henning Kamp * SUCH DAMAGE. 34c72e7314SPoul-Henning Kamp * 35c72e7314SPoul-Henning Kamp * $FreeBSD$ 36c72e7314SPoul-Henning Kamp * 37c72e7314SPoul-Henning Kamp * Functions to encode and decode struct disklabel and struct partition into 38c72e7314SPoul-Henning Kamp * a bytestream of little endianess and correct packing. 39c72e7314SPoul-Henning Kamp * 40c72e7314SPoul-Henning Kamp * NB! This file must be usable both in kernel and userland. 41c72e7314SPoul-Henning Kamp * 42c72e7314SPoul-Henning Kamp */ 43c72e7314SPoul-Henning Kamp 44c72e7314SPoul-Henning Kamp #include <sys/types.h> 45c72e7314SPoul-Henning Kamp #include <sys/endian.h> 46c72e7314SPoul-Henning Kamp #include <sys/disklabel.h> 47c72e7314SPoul-Henning Kamp #ifdef _KERNEL 48c72e7314SPoul-Henning Kamp #include <sys/systm.h> 4981377a3fSPoul-Henning Kamp #else 5081377a3fSPoul-Henning Kamp #include <string.h> 51c72e7314SPoul-Henning Kamp #endif 52c72e7314SPoul-Henning Kamp 53c72e7314SPoul-Henning Kamp void 54c72e7314SPoul-Henning Kamp bsd_partition_le_dec(u_char *ptr, struct partition *d) 55c72e7314SPoul-Henning Kamp { 56c72e7314SPoul-Henning Kamp d->p_size = le32dec(ptr + 0); 57c72e7314SPoul-Henning Kamp d->p_offset = le32dec(ptr + 4); 58c72e7314SPoul-Henning Kamp d->p_fsize = le32dec(ptr + 8); 59c72e7314SPoul-Henning Kamp d->p_fstype = ptr[12]; 60c72e7314SPoul-Henning Kamp d->p_frag = ptr[13]; 61c72e7314SPoul-Henning Kamp d->p_cpg = le16dec(ptr + 14); 62c72e7314SPoul-Henning Kamp } 63c72e7314SPoul-Henning Kamp 64c72e7314SPoul-Henning Kamp void 65c72e7314SPoul-Henning Kamp bsd_disklabel_le_dec(u_char *ptr, struct disklabel *d) 66c72e7314SPoul-Henning Kamp { 67c72e7314SPoul-Henning Kamp int i; 68c72e7314SPoul-Henning Kamp 69c72e7314SPoul-Henning Kamp d->d_magic = le32dec(ptr + 0); 70c72e7314SPoul-Henning Kamp d->d_type = le16dec(ptr + 4); 71c72e7314SPoul-Henning Kamp d->d_subtype = le16dec(ptr + 6); 72c72e7314SPoul-Henning Kamp bcopy(ptr + 8, d->d_typename, 16); 73c72e7314SPoul-Henning Kamp bcopy(ptr + 24, d->d_packname, 16); 74c72e7314SPoul-Henning Kamp d->d_secsize = le32dec(ptr + 40); 75c72e7314SPoul-Henning Kamp d->d_nsectors = le32dec(ptr + 44); 76c72e7314SPoul-Henning Kamp d->d_ntracks = le32dec(ptr + 48); 77c72e7314SPoul-Henning Kamp d->d_ncylinders = le32dec(ptr + 52); 78c72e7314SPoul-Henning Kamp d->d_secpercyl = le32dec(ptr + 56); 79c72e7314SPoul-Henning Kamp d->d_secperunit = le32dec(ptr + 60); 80c72e7314SPoul-Henning Kamp d->d_sparespertrack = le16dec(ptr + 64); 81c72e7314SPoul-Henning Kamp d->d_sparespercyl = le16dec(ptr + 66); 82c72e7314SPoul-Henning Kamp d->d_acylinders = le32dec(ptr + 68); 83c72e7314SPoul-Henning Kamp d->d_rpm = le16dec(ptr + 72); 84c72e7314SPoul-Henning Kamp d->d_interleave = le16dec(ptr + 74); 85c72e7314SPoul-Henning Kamp d->d_trackskew = le16dec(ptr + 76); 86c72e7314SPoul-Henning Kamp d->d_cylskew = le16dec(ptr + 78); 87c72e7314SPoul-Henning Kamp d->d_headswitch = le32dec(ptr + 80); 88c72e7314SPoul-Henning Kamp d->d_trkseek = le32dec(ptr + 84); 89c72e7314SPoul-Henning Kamp d->d_flags = le32dec(ptr + 88); 90c72e7314SPoul-Henning Kamp d->d_drivedata[0] = le32dec(ptr + 92); 91c72e7314SPoul-Henning Kamp d->d_drivedata[1] = le32dec(ptr + 96); 92c72e7314SPoul-Henning Kamp d->d_drivedata[2] = le32dec(ptr + 100); 93c72e7314SPoul-Henning Kamp d->d_drivedata[3] = le32dec(ptr + 104); 94c72e7314SPoul-Henning Kamp d->d_drivedata[4] = le32dec(ptr + 108); 95c72e7314SPoul-Henning Kamp d->d_spare[0] = le32dec(ptr + 112); 96c72e7314SPoul-Henning Kamp d->d_spare[1] = le32dec(ptr + 116); 97c72e7314SPoul-Henning Kamp d->d_spare[2] = le32dec(ptr + 120); 98c72e7314SPoul-Henning Kamp d->d_spare[3] = le32dec(ptr + 124); 99c72e7314SPoul-Henning Kamp d->d_spare[4] = le32dec(ptr + 128); 100c72e7314SPoul-Henning Kamp d->d_magic2 = le32dec(ptr + 132); 101c72e7314SPoul-Henning Kamp d->d_checksum = le16dec(ptr + 136); 102c72e7314SPoul-Henning Kamp d->d_npartitions = le16dec(ptr + 138); 103c72e7314SPoul-Henning Kamp d->d_bbsize = le32dec(ptr + 140); 104c72e7314SPoul-Henning Kamp d->d_sbsize = le32dec(ptr + 144); 105c72e7314SPoul-Henning Kamp for (i = 0; i < MAXPARTITIONS; i++) 106c72e7314SPoul-Henning Kamp bsd_partition_le_dec(ptr + 148 + 16 * i, &d->d_partitions[i]); 107c72e7314SPoul-Henning Kamp } 108c72e7314SPoul-Henning Kamp 109c72e7314SPoul-Henning Kamp void 110c72e7314SPoul-Henning Kamp bsd_partition_le_enc(u_char *ptr, struct partition *d) 111c72e7314SPoul-Henning Kamp { 112c72e7314SPoul-Henning Kamp le32enc(ptr + 0, d->p_size); 113c72e7314SPoul-Henning Kamp le32enc(ptr + 4, d->p_offset); 114c72e7314SPoul-Henning Kamp le32enc(ptr + 8, d->p_fsize); 115c72e7314SPoul-Henning Kamp ptr[12] = d->p_fstype; 116c72e7314SPoul-Henning Kamp ptr[13] = d->p_frag; 117c72e7314SPoul-Henning Kamp le16enc(ptr + 14, d->p_cpg); 118c72e7314SPoul-Henning Kamp } 119c72e7314SPoul-Henning Kamp 120c72e7314SPoul-Henning Kamp void 121c72e7314SPoul-Henning Kamp bsd_disklabel_le_enc(u_char *ptr, struct disklabel *d) 122c72e7314SPoul-Henning Kamp { 123c72e7314SPoul-Henning Kamp int i; 124c72e7314SPoul-Henning Kamp 125c72e7314SPoul-Henning Kamp le32enc(ptr + 0, d->d_magic); 126c72e7314SPoul-Henning Kamp le16enc(ptr + 4, d->d_type); 127c72e7314SPoul-Henning Kamp le16enc(ptr + 6, d->d_subtype); 128c72e7314SPoul-Henning Kamp bcopy(d->d_typename, ptr + 8, 16); 129c72e7314SPoul-Henning Kamp bcopy(d->d_packname, ptr + 24, 16); 130c72e7314SPoul-Henning Kamp le32enc(ptr + 40, d->d_secsize); 131c72e7314SPoul-Henning Kamp le32enc(ptr + 44, d->d_nsectors); 132c72e7314SPoul-Henning Kamp le32enc(ptr + 48, d->d_ntracks); 133c72e7314SPoul-Henning Kamp le32enc(ptr + 52, d->d_ncylinders); 134c72e7314SPoul-Henning Kamp le32enc(ptr + 56, d->d_secpercyl); 135c72e7314SPoul-Henning Kamp le32enc(ptr + 60, d->d_secperunit); 136c72e7314SPoul-Henning Kamp le16enc(ptr + 64, d->d_sparespertrack); 137c72e7314SPoul-Henning Kamp le16enc(ptr + 66, d->d_sparespercyl); 138c72e7314SPoul-Henning Kamp le32enc(ptr + 68, d->d_acylinders); 139c72e7314SPoul-Henning Kamp le16enc(ptr + 72, d->d_rpm); 140c72e7314SPoul-Henning Kamp le16enc(ptr + 74, d->d_interleave); 141c72e7314SPoul-Henning Kamp le16enc(ptr + 76, d->d_trackskew); 142c72e7314SPoul-Henning Kamp le16enc(ptr + 78, d->d_cylskew); 143c72e7314SPoul-Henning Kamp le32enc(ptr + 80, d->d_headswitch); 144c72e7314SPoul-Henning Kamp le32enc(ptr + 84, d->d_trkseek); 145c72e7314SPoul-Henning Kamp le32enc(ptr + 88, d->d_flags); 146c72e7314SPoul-Henning Kamp le32enc(ptr + 92, d->d_drivedata[0]); 147c72e7314SPoul-Henning Kamp le32enc(ptr + 96, d->d_drivedata[1]); 148c72e7314SPoul-Henning Kamp le32enc(ptr + 100, d->d_drivedata[2]); 149c72e7314SPoul-Henning Kamp le32enc(ptr + 104, d->d_drivedata[3]); 150c72e7314SPoul-Henning Kamp le32enc(ptr + 108, d->d_drivedata[4]); 151c72e7314SPoul-Henning Kamp le32enc(ptr + 112, d->d_spare[0]); 152c72e7314SPoul-Henning Kamp le32enc(ptr + 116, d->d_spare[1]); 153c72e7314SPoul-Henning Kamp le32enc(ptr + 120, d->d_spare[2]); 154c72e7314SPoul-Henning Kamp le32enc(ptr + 124, d->d_spare[3]); 155c72e7314SPoul-Henning Kamp le32enc(ptr + 128, d->d_spare[4]); 156c72e7314SPoul-Henning Kamp le32enc(ptr + 132, d->d_magic2); 157c72e7314SPoul-Henning Kamp le16enc(ptr + 136, d->d_checksum); 158c72e7314SPoul-Henning Kamp le16enc(ptr + 138, d->d_npartitions); 159c72e7314SPoul-Henning Kamp le32enc(ptr + 140, d->d_bbsize); 160c72e7314SPoul-Henning Kamp le32enc(ptr + 144, d->d_sbsize); 161c72e7314SPoul-Henning Kamp for (i = 0; i < MAXPARTITIONS; i++) 162c72e7314SPoul-Henning Kamp bsd_partition_le_enc(ptr + 148 + 16 * i, &d->d_partitions[i]); 163c72e7314SPoul-Henning Kamp } 164