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/*
* Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
/*
* Auto partitioning code.
*/
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <err.h>
#include "disk.h"
#include "mbr.h"
#include "auto.h"
int AUTO_boothfs __P((disk_t *, mbr_t *));
int AUTO_hfs __P((disk_t *, mbr_t *));
int AUTO_dos __P((disk_t *, mbr_t *));
int AUTO_raid __P((disk_t *, mbr_t *));
/* The default style is the first one in the list */
struct _auto_style {
char *style_name;
int (*style_fn)(disk_t *, mbr_t *);
char *description;
} style_fns[] = {
{"boothfs", AUTO_boothfs, "8Mb boot plus HFS+ root partition"},
{"hfs", AUTO_hfs, "Entire disk as one HFS+ partition"},
{"dos", AUTO_dos, "Entire disk as one DOS partition"},
{"raid", AUTO_raid, "Entire disk as one 0xAC partition"},
{0,0}
};
void
AUTO_print_styles(FILE *f)
{
struct _auto_style *fp;
int i;
for (i=0, fp = &style_fns[0]; fp->style_name != NULL; i++, fp++) {
fprintf(f, " %-10s %s%s\n", fp->style_name, fp->description, (i==0) ? " (default)" : "");
}
}
int
AUTO_init(disk_t *disk, char *style, mbr_t *mbr)
{
struct _auto_style *fp;
for (fp = &style_fns[0]; fp->style_name != NULL; fp++) {
/* If style is NULL, use the first (default) style */
if (style == NULL || strcasecmp(style, fp->style_name) == 0) {
return (*fp->style_fn)(disk, mbr);
}
}
warnx("No such auto-partition style %s", style);
return AUTO_ERR;
}
static int
use_whole_disk(disk_t *disk, unsigned char id, mbr_t *mbr)
{
MBR_clear(mbr);
mbr->part[0].id = id;
mbr->part[0].bs = 63;
mbr->part[0].ns = disk->real->size - 63;
PRT_fix_CHS(disk, &mbr->part[0], 0);
return AUTO_OK;
}
/* DOS style: one partition for the whole disk */
int
AUTO_dos(disk_t *disk, mbr_t *mbr)
{
int cc;
cc = use_whole_disk(disk, 0x0C, mbr);
if (cc == AUTO_OK) {
mbr->part[0].flag = DOSACTIVE;
}
return cc;
}
/* HFS style: one partition for the whole disk */
int
AUTO_hfs(disk_t *disk, mbr_t *mbr)
{
int cc;
cc = use_whole_disk(disk, 0xAF, mbr);
if (cc == AUTO_OK) {
mbr->part[0].flag = DOSACTIVE;
}
return cc;
}
/* One boot partition, one HFS+ root partition */
int
AUTO_boothfs (disk_t *disk, mbr_t *mbr)
{
/* Check disk size. */
if (disk->real->size < 16 * 2048) {
errx(1, "Disk size must be greater than 16Mb");
return AUTO_ERR;
}
MBR_clear(mbr);
/* 8MB boot partition */
mbr->part[0].id = 0xAB;
mbr->part[0].bs = 63;
mbr->part[0].ns = 8 * 1024 * 2;
mbr->part[0].flag = DOSACTIVE;
PRT_fix_CHS(disk, &mbr->part[0], 0);
/* Rest of the disk for rooting */
mbr->part[1].id = 0xAF;
mbr->part[1].bs = (mbr->part[0].bs + mbr->part[0].ns);
mbr->part[1].ns = disk->real->size - mbr->part[0].ns - 63;
PRT_fix_CHS(disk, &mbr->part[1], 1);
return AUTO_OK;
}
/* RAID style: one 0xAC partition for the whole disk */
int
AUTO_raid(disk_t *disk, mbr_t *mbr)
{
return use_whole_disk(disk, 0xAC, mbr);
}
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