| 1,4 → 1,9 |
|---|
| /*- |
| * Copyright 2005, Anatoli Klassen <anatoli@aksoft.net> |
| * All rights reserved. |
| * |
| * The code is based on code of geom_bsd module by Poul-Henning Kamp. |
| * |
| * Copyright (c) 2002 Poul-Henning Kamp |
| * Copyright (c) 2002 Networks Associates Technology, Inc. |
| * All rights reserved. |
| 34,23 → 39,16 |
|---|
| */ |
| |
| /* |
| * Functions to encode and decode struct disklabel and struct partition into |
| * Functions to decode struct disklabel and struct partition into |
| * a bytestream of little endianess and correct packing. |
| * |
| * NB! This file must be usable both in kernel and userland. |
| */ |
| |
| #include <sys/cdefs.h> |
| __FBSDID("$FreeBSD: src/sys/geom/geom_bsd_enc.c,v 1.6 2005/01/06 18:27:29 imp Exp $"); |
| |
| #include <sys/types.h> |
| #include <sys/endian.h> |
| #include <sys/errno.h> |
| #ifdef _KERNEL |
| #include <sys/systm.h> |
| #else |
| #include <string.h> |
| #endif |
| |
| #include "disklabel.h" |
| |
| 82,6 → 80,9 |
|---|
| } |
| |
| d->d_npartitions = le16dec(ptr + 138); |
| if (maxpart > NBSD_MAXPARTITIONS) { |
| return(EINVAL); |
| } |
| if (d->d_npartitions > maxpart) { |
| return(EINVAL); |
| } |
| 128,70 → 129,8 |
|---|
| d->d_npartitions = le16dec(ptr + 138); |
| d->d_bbsize = le32dec(ptr + 140); |
| d->d_sbsize = le32dec(ptr + 144); |
| for (i = 0; i < NBSD_MAXPARTITIONS; i++) |
| for (i = 0; i < d->d_npartitions; i++) |
| nbsd_partition_le_dec(ptr + 148 + 16 * i, &d->d_partitions[i]); |
| return(0); |
| } |
| |
| void |
| nbsd_partition_le_enc(u_char *ptr, struct partition *d) |
| { |
| le32enc(ptr + 0, d->p_size); |
| le32enc(ptr + 4, d->p_offset); |
| le32enc(ptr + 8, d->p_fsize); |
| ptr[12] = d->p_fstype; |
| ptr[13] = d->p_frag; |
| le16enc(ptr + 14, d->p_cpg); |
| } |
| |
| void |
| nbsd_disklabel_le_enc(u_char *ptr, struct disklabel *d) |
| { |
| int i; |
| u_char *p, *pe; |
| uint16_t sum; |
| |
| le32enc(ptr + 0, d->d_magic); |
| le16enc(ptr + 4, d->d_type); |
| le16enc(ptr + 6, d->d_subtype); |
| bcopy(d->d_typename, ptr + 8, 16); |
| bcopy(d->d_packname, ptr + 24, 16); |
| le32enc(ptr + 40, d->d_secsize); |
| le32enc(ptr + 44, d->d_nsectors); |
| le32enc(ptr + 48, d->d_ntracks); |
| le32enc(ptr + 52, d->d_ncylinders); |
| le32enc(ptr + 56, d->d_secpercyl); |
| le32enc(ptr + 60, d->d_secperunit); |
| le16enc(ptr + 64, d->d_sparespertrack); |
| le16enc(ptr + 66, d->d_sparespercyl); |
| le32enc(ptr + 68, d->d_acylinders); |
| le16enc(ptr + 72, d->d_rpm); |
| le16enc(ptr + 74, d->d_interleave); |
| le16enc(ptr + 76, d->d_trackskew); |
| le16enc(ptr + 78, d->d_cylskew); |
| le32enc(ptr + 80, d->d_headswitch); |
| le32enc(ptr + 84, d->d_trkseek); |
| le32enc(ptr + 88, d->d_flags); |
| le32enc(ptr + 92, d->d_drivedata[0]); |
| le32enc(ptr + 96, d->d_drivedata[1]); |
| le32enc(ptr + 100, d->d_drivedata[2]); |
| le32enc(ptr + 104, d->d_drivedata[3]); |
| le32enc(ptr + 108, d->d_drivedata[4]); |
| le32enc(ptr + 112, d->d_spare[0]); |
| le32enc(ptr + 116, d->d_spare[1]); |
| le32enc(ptr + 120, d->d_spare[2]); |
| le32enc(ptr + 124, d->d_spare[3]); |
| le32enc(ptr + 128, d->d_spare[4]); |
| le32enc(ptr + 132, d->d_magic2); |
| le16enc(ptr + 136, 0); |
| le16enc(ptr + 138, d->d_npartitions); |
| le32enc(ptr + 140, d->d_bbsize); |
| le32enc(ptr + 144, d->d_sbsize); |
| for (i = 0; i < d->d_npartitions; i++) |
| nbsd_partition_le_enc(ptr + 148 + 16 * i, &d->d_partitions[i]); |
| pe = ptr + 148 + 16 * d->d_npartitions; |
| sum = 0; |
| for (p = ptr; p < pe; p += 2) |
| sum ^= le16dec(p); |
| le16enc(ptr + 136, sum); |
| } |