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1/*␊
2 * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.␊
3 * ␊
4 * @APPLE_LICENSE_HEADER_START@␊
5 * ␊
6 * This file contains Original Code and/or Modifications of Original Code␊
7 * as defined in and that are subject to the Apple Public Source License␊
8 * Version 2.0 (the 'License'). You may not use this file except in␊
9 * compliance with the License. Please obtain a copy of the License at␊
10 * http://www.opensource.apple.com/apsl/ and read it before using this␊
11 * file.␊
12 * ␊
13 * The Original Code and all software distributed under the License are␊
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊
18 * Please see the License for the specific language governing rights and␊
19 * limitations under the License.␊
20 * ␊
21 * @APPLE_LICENSE_HEADER_END@␊
22 */␊
23␊
24/*␊
25 * Auto partitioning code.␊
26 */␊
27␊
28#include <stdio.h>␊
29#include <ctype.h>␊
30#include <stdlib.h>␊
31#include <unistd.h>␊
32#include <string.h>␊
33#include <err.h>␊
34#include "disk.h"␊
35#include "mbr.h"␊
36#include "auto.h"␊
37␊
38int AUTO_boothfs __P((disk_t *, mbr_t *));␊
39int AUTO_bootufs __P((disk_t *, mbr_t *));␊
40int AUTO_hfs __P((disk_t *, mbr_t *));␊
41int AUTO_ufs __P((disk_t *, mbr_t *));␊
42int AUTO_dos __P((disk_t *, mbr_t *));␊
43int AUTO_raid __P((disk_t *, mbr_t *));␊
44␊
45/* The default style is the first one in the list */␊
46struct _auto_style {␊
47␉char *style_name;␊
48␉int (*style_fn)(disk_t *, mbr_t *);␊
49␉char *description;␊
50} style_fns[] = {␊
51␉{"boothfs", AUTO_boothfs, "8Mb boot plus HFS+ root partition"},␊
52␉{"bootufs", AUTO_bootufs, "8Mb boot plus UFS root partition"},␊
53␉{"hfs", AUTO_hfs, "Entire disk as one HFS+ partition"},␊
54␉{"ufs", AUTO_ufs, "Entire disk as one UFS partition"},␊
55␉{"dos", AUTO_dos, "Entire disk as one DOS partition"},␊
56␉{"raid", AUTO_raid, "Entire disk as one 0xAC partition"},␊
57␉{0,0}␊
58};␊
59␊
60void␊
61AUTO_print_styles(FILE *f)␊
62{␊
63␉struct _auto_style *fp;␊
64␉int i;␊
65␉␊
66␉for (i=0, fp = &style_fns[0]; fp->style_name != NULL; i++, fp++) {␊
67␉␉fprintf(f, " %-10s %s%s\n", fp->style_name, fp->description, (i==0) ? " (default)" : "");␊
68␉}␊
69}␊
70␊
71␊
72int␊
73AUTO_init(disk_t *disk, char *style, mbr_t *mbr)␊
74{␊
75␉struct _auto_style *fp;␊
76␉␊
77␉for (fp = &style_fns[0]; fp->style_name != NULL; fp++) {␊
78␉␉/* If style is NULL, use the first (default) style */␊
79␉␉if (style == NULL || strcasecmp(style, fp->style_name) == 0) {␊
80␉␉␉return (*fp->style_fn)(disk, mbr);␊
81␉␉}␊
82␉}␊
83␉warnx("No such auto-partition style %s", style);␊
84␉return AUTO_ERR;␊
85}␊
86␊
87␊
88static int␊
89use_whole_disk(disk_t *disk, unsigned char id, mbr_t *mbr)␊
90{␊
91␉MBR_clear(mbr);␊
92␉mbr->part[0].id = id;␊
93␉mbr->part[0].bs = 63;␊
94␉mbr->part[0].ns = disk->real->size - 63;␊
95␉PRT_fix_CHS(disk, &mbr->part[0], 0);␊
96␉return AUTO_OK;␊
97}␊
98␊
99/* DOS style: one partition for the whole disk */␊
100int␊
101AUTO_dos(disk_t *disk, mbr_t *mbr)␊
102{␊
103␉int cc;␊
104␉cc = use_whole_disk(disk, 0x0C, mbr);␊
105␉if (cc == AUTO_OK) {␊
106␉␉mbr->part[0].flag = DOSACTIVE;␊
107␉}␊
108␉return cc;␊
109}␊
110␊
111/* HFS style: one partition for the whole disk */␊
112int␊
113AUTO_hfs(disk_t *disk, mbr_t *mbr)␊
114{␊
115␉int cc;␊
116␉cc = use_whole_disk(disk, 0xAF, mbr);␊
117␉if (cc == AUTO_OK) {␊
118␉␉mbr->part[0].flag = DOSACTIVE;␊
119␉}␊
120␉return cc;␊
121}␊
122␊
123/* UFS style: one partition for the whole disk */␊
124int␊
125AUTO_ufs(disk_t *disk, mbr_t *mbr)␊
126{␊
127␉int cc;␊
128␉cc = use_whole_disk(disk, 0xA8, mbr);␊
129␉if (cc == AUTO_OK) {␊
130␉␉mbr->part[0].flag = DOSACTIVE;␊
131␉}␊
132␉return cc;␊
133}␊
134␊
135/* One boot partition, one HFS+ root partition */␊
136int␊
137AUTO_boothfs (disk_t *disk, mbr_t *mbr)␊
138{␊
139␉/* Check disk size. */␊
140␉if (disk->real->size < 16 * 2048) {␊
141␉␉errx(1, "Disk size must be greater than 16Mb");␊
142␉␉return AUTO_ERR;␊
143␉}␊
144␉␊
145␉MBR_clear(mbr);␊
146␉␊
147␉/* 8MB boot partition */␊
148␉mbr->part[0].id = 0xAB;␊
149␉mbr->part[0].bs = 63;␊
150␉mbr->part[0].ns = 8 * 1024 * 2;␊
151␉mbr->part[0].flag = DOSACTIVE;␊
152␉PRT_fix_CHS(disk, &mbr->part[0], 0);␊
153␉␊
154␉/* Rest of the disk for rooting */␊
155␉mbr->part[1].id = 0xAF;␊
156␉mbr->part[1].bs = (mbr->part[0].bs + mbr->part[0].ns);␊
157␉mbr->part[1].ns = disk->real->size - mbr->part[0].ns - 63;␊
158␉PRT_fix_CHS(disk, &mbr->part[1], 1);␊
159␉␊
160␉return AUTO_OK;␊
161}␊
162␊
163/* One boot partition, one UFS root partition */␊
164int␊
165AUTO_bootufs(disk_t *disk, mbr_t *mbr)␊
166{␊
167␉/* Check disk size. */␊
168␉if (disk->real->size < 16 * 2048) {␊
169␉␉errx(1, "Disk size must be greater than 16Mb");␊
170␉␉return AUTO_ERR;␊
171␉}␊
172␉␊
173␉MBR_clear(mbr);␊
174␉␊
175␉/* 8MB boot partition */␊
176␉mbr->part[0].id = 0xAB;␊
177␉mbr->part[0].bs = 63;␊
178␉mbr->part[0].ns = 8 * 1024 * 2;␊
179␉mbr->part[0].flag = DOSACTIVE;␊
180␉PRT_fix_CHS(disk, &mbr->part[0], 0);␊
181␉␊
182␉/* Rest of the disk for rooting */␊
183␉mbr->part[1].id = 0xA8;␊
184␉mbr->part[1].bs = (mbr->part[0].bs + mbr->part[0].ns);␊
185␉mbr->part[1].ns = disk->real->size - mbr->part[0].ns - 63;␊
186␉PRT_fix_CHS(disk, &mbr->part[1], 1);␊
187␉␊
188␉return AUTO_OK;␊
189}␊
190␊
191/* RAID style: one 0xAC partition for the whole disk */␊
192int␊
193AUTO_raid(disk_t *disk, mbr_t *mbr)␊
194{␊
195␉return use_whole_disk(disk, 0xAC, mbr);␊
196}␊
197␊
198

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