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1/*␊
2 * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.␊
3 * ␊
4 * ␊
5 * This file contains Original Code and/or Modifications of Original Code␊
6 * as defined in and that are subject to the Apple Public Source License␊
7 * Version 2.0 (the 'License'). You may not use this file except in␊
8 * compliance with the License. Please obtain a copy of the License at␊
9 * http://www.opensource.apple.com/apsl/ and read it before using this␊
10 * file.␊
11 * ␊
12 * The Original Code and all software distributed under the License are␊
13 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊
14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊
15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊
16 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊
17 * Please see the License for the specific language governing rights and␊
18 * limitations under the License.␊
19 * ␊
20 *␊
21 *␊
22 * Auto partitioning code.␊
23 */␊
24␊
25#include <stdio.h>␊
26#include <ctype.h>␊
27#include <stdlib.h>␊
28#include <unistd.h>␊
29#include <string.h>␊
30#include <err.h>␊
31#include "disk.h"␊
32#include "mbr.h"␊
33#include "auto.h"␊
34␊
35int AUTO_boothfs __P((disk_t *, mbr_t *));␊
36int AUTO_bootufs __P((disk_t *, mbr_t *));␊
37int AUTO_hfs __P((disk_t *, mbr_t *));␊
38int AUTO_ufs __P((disk_t *, mbr_t *));␊
39int AUTO_dos __P((disk_t *, mbr_t *));␊
40int AUTO_raid __P((disk_t *, mbr_t *));␊
41␊
42/* The default style is the first one in the list */␊
43struct _auto_style {␊
44 char *style_name;␊
45 int (*style_fn)(disk_t *, mbr_t *);␊
46 char *description;␊
47} style_fns[] = {␊
48 {"boothfs", AUTO_boothfs, "8Mb boot plus HFS+ root partition"},␊
49 {"bootufs", AUTO_bootufs, "8Mb boot plus UFS root partition"},␊
50 {"hfs", AUTO_hfs, "Entire disk as one HFS+ partition"},␊
51 {"ufs", AUTO_ufs, "Entire disk as one UFS partition"},␊
52 {"dos", AUTO_dos, "Entire disk as one DOS partition"},␊
53 {"raid", AUTO_raid, "Entire disk as one 0xAC partition"},␊
54 {0,0}␊
55};␊
56␊
57void␊
58AUTO_print_styles(FILE *f)␊
59{␊
60 struct _auto_style *fp;␊
61 int i;␊
62␊
63 for (i=0, fp = &style_fns[0]; fp->style_name != NULL; i++, fp++) {␊
64 fprintf(f, " %-10s %s%s\n", fp->style_name, fp->description, (i==0) ? " (default)" : "");␊
65 }␊
66}␊
67␊
68␊
69int␊
70AUTO_init(disk_t *disk, char *style, mbr_t *mbr)␊
71{␊
72 struct _auto_style *fp;␊
73␊
74 for (fp = &style_fns[0]; fp->style_name != NULL; fp++) {␊
75 /* If style is NULL, use the first (default) style */␊
76 if (style == NULL || strcasecmp(style, fp->style_name) == 0) {␊
77 return (*fp->style_fn)(disk, mbr);␊
78 }␊
79 }␊
80 warnx("No such auto-partition style %s", style);␊
81 return AUTO_ERR;␊
82}␊
83␊
84␊
85static int␊
86use_whole_disk(disk_t *disk, unsigned char id, mbr_t *mbr)␊
87{␊
88 MBR_clear(mbr);␊
89 mbr->part[0].id = id;␊
90 mbr->part[0].bs = 63;␊
91 mbr->part[0].ns = disk->real->size - 63;␊
92 PRT_fix_CHS(disk, &mbr->part[0], 0);␊
93 return AUTO_OK;␊
94}␊
95␊
96/* DOS style: one partition for the whole disk */␊
97int␊
98AUTO_dos(disk_t *disk, mbr_t *mbr)␊
99{␊
100 int cc;␊
101 cc = use_whole_disk(disk, 0x0C, mbr);␊
102 if (cc == AUTO_OK) {␊
103 mbr->part[0].flag = DOSACTIVE;␊
104 }␊
105 return cc;␊
106}␊
107␊
108/* HFS style: one partition for the whole disk */␊
109int␊
110AUTO_hfs(disk_t *disk, mbr_t *mbr)␊
111{␊
112 int cc;␊
113 cc = use_whole_disk(disk, 0xAF, mbr);␊
114 if (cc == AUTO_OK) {␊
115 mbr->part[0].flag = DOSACTIVE;␊
116 }␊
117 return cc;␊
118}␊
119␊
120/* UFS style: one partition for the whole disk */␊
121int␊
122AUTO_ufs(disk_t *disk, mbr_t *mbr)␊
123{␊
124 int cc;␊
125 cc = use_whole_disk(disk, 0xA8, mbr);␊
126 if (cc == AUTO_OK) {␊
127 mbr->part[0].flag = DOSACTIVE;␊
128 }␊
129 return cc;␊
130}␊
131␊
132/* One boot partition, one HFS+ root partition */␊
133int␊
134AUTO_boothfs (disk_t *disk, mbr_t *mbr)␊
135{␊
136 /* Check disk size. */␊
137 if (disk->real->size < 16 * 2048) {␊
138 errx(1, "Disk size must be greater than 16Mb");␊
139 return AUTO_ERR;␊
140 }␊
141␊
142 MBR_clear(mbr);␊
143␊
144 /* 8MB boot partition */␊
145 mbr->part[0].id = 0xAB;␊
146 mbr->part[0].bs = 63;␊
147 mbr->part[0].ns = 8 * 1024 * 2;␊
148 mbr->part[0].flag = DOSACTIVE;␊
149 PRT_fix_CHS(disk, &mbr->part[0], 0);␊
150␊
151 /* Rest of the disk for rooting */␊
152 mbr->part[1].id = 0xAF;␊
153 mbr->part[1].bs = (mbr->part[0].bs + mbr->part[0].ns);␊
154 mbr->part[1].ns = disk->real->size - mbr->part[0].ns - 63;␊
155 PRT_fix_CHS(disk, &mbr->part[1], 1);␊
156␊
157 return AUTO_OK;␊
158}␊
159␊
160/* One boot partition, one UFS root partition */␊
161int␊
162AUTO_bootufs(disk_t *disk, mbr_t *mbr)␊
163{␊
164 /* Check disk size. */␊
165 if (disk->real->size < 16 * 2048) {␊
166 errx(1, "Disk size must be greater than 16Mb");␊
167 return AUTO_ERR;␊
168 }␊
169␊
170 MBR_clear(mbr);␊
171␊
172 /* 8MB boot partition */␊
173 mbr->part[0].id = 0xAB;␊
174 mbr->part[0].bs = 63;␊
175 mbr->part[0].ns = 8 * 1024 * 2;␊
176 mbr->part[0].flag = DOSACTIVE;␊
177 PRT_fix_CHS(disk, &mbr->part[0], 0);␊
178␊
179 /* Rest of the disk for rooting */␊
180 mbr->part[1].id = 0xA8;␊
181 mbr->part[1].bs = (mbr->part[0].bs + mbr->part[0].ns);␊
182 mbr->part[1].ns = disk->real->size - mbr->part[0].ns - 63;␊
183 PRT_fix_CHS(disk, &mbr->part[1], 1);␊
184␊
185 return AUTO_OK;␊
186}␊
187␊
188/* RAID style: one 0xAC partition for the whole disk */␊
189int␊
190AUTO_raid(disk_t *disk, mbr_t *mbr)␊
191{␊
192 return use_whole_disk(disk, 0xAC, mbr);␊
193}␊
194␊
195

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