1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
|
/*
* <apple.c>
*
* Open Hack'Ware BIOS Apple partition type management
*
* Copyright (c) 2004-2005 Jocelyn Mayer
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License V2
* as published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdlib.h>
#include <stdio.h>
#include "bios.h"
#include "libpart.h"
/* Apple partitions handler */
#define HFS_BLOCSIZE (512)
typedef struct Mac_head_t Mac_head_t;
struct Mac_head_t {
/* 0x000 */
uint8_t signature[2];
uint16_t bloc_size;
uint32_t bloc_count;
/* 0x008 */
uint16_t dev_type;
uint16_t dev_ID;
uint32_t data;
/* 0x010 */
uint16_t driver_cnt;
uint8_t pad[428];
/* 0x01BE */
uint8_t part_table[0x40];
/* 0x1FE */
uint8_t magic[2];
/* 0x0200 */
} __attribute__ ((packed));
typedef struct Mac_driver_entry_t Mac_driver_entry_t;
struct Mac_driver_entry_t {
uint32_t start;
uint16_t size;
uint16_t type;
} __attribute__ ((packed));
typedef enum Mac_partflags_t Mac_partflags_t;
enum Mac_partflags_t {
MACPART_SPEC2 = 0x0100,
MACPART_SPEC1 = 0x0080,
MACPART_PIC = 0x0040,
MACPART_WRITABLE = 0x0020,
MACPART_READABLE = 0x0010,
MACPART_BOOTABLE = 0x0008,
MACPART_INUSE = 0x0004,
MACPART_ALLOCATED = 0x0002,
MACPART_VALID = 0x0001,
};
#define MAC_BOOTABLE_PART (MACPART_VALID | MACPART_INUSE | MACPART_BOOTABLE)
typedef struct Mac_partmap_t Mac_partmap_t;
struct Mac_partmap_t {
/* 0x000 */
uint8_t signature[2];
uint8_t res0[2];
uint32_t map_cnt;
/* 0x008 */
uint32_t start_bloc;
uint32_t bloc_cnt;
/* 0x010 */
uint8_t name[32];
/* 0x030 */
uint8_t type[32];
/* 0x050 */
uint32_t data_start;
uint32_t data_cnt;
/* 0x058 */
uint32_t flags;
uint32_t boot_start;
/* 0x060 */
uint32_t boot_size;
uint32_t boot_load;
/* 0x068 */
uint32_t boot_load2;
uint32_t boot_entry;
/* 0x070 */
uint32_t boot_entry2;
uint32_t boot_csum;
/* 0x078 */
uint8_t CPU[16];
/* 0x088 */
uint8_t boot_args[0x80];
/* 0x108 */
uint8_t pad0[0xC8];
/* 0x1D4 */
uint16_t ntype;
uint8_t ff[2];
/* 0x1D8 */
uint8_t pad1[0x24];
/* 0x1FC */
uint8_t mark[4];
/* 0x200 */
} __attribute__ ((packed));
int fs_raw_set_bootfile (part_t *part,
uint32_t start_bloc, uint32_t start_offset,
uint32_t size_bloc, uint32_t size_offset);
part_t *Apple_probe_partitions (bloc_device_t *bd)
{
unsigned char tmp[33], *name;
Mac_head_t *head;
Mac_partmap_t *partmap;
part_t *part, *boot_part;
unsigned char *type;
uint8_t *buffer;
uint32_t pos, bloc, start, count;
uint32_t bloc_size, flags;
int map_count, i, n, len;
part = NULL;
boot_part = NULL;
n = 1;
buffer = malloc(HFS_BLOCSIZE);
/* Read first sector */
bd_seek(bd, 0, 0);
if (bd_read(bd, buffer, HFS_BLOCSIZE) < 0) {
ERROR("Unable to read boot sector from boot device. Aborting...\n");
goto error;
}
head = (Mac_head_t *)buffer;
if (head->signature[0] != 'E' || head->signature[1] != 'R') {
// MSG("\rNo Apple boot bloc signature...\n");
goto error;
}
MSG("\rFound Apple partition map...\n");
bloc = 0;
bloc_size = bd_seclen(bd);
map_count = 1;
#if 0
if (head->magic[0] == 0x55 && head->magic[1] == 0xAA) {
/* PREP boot image ! Must parse it as MS-DOS boot bloc */
ERROR("%s PREP head magic\n", __func__);
goto error;
}
#endif
/* Partition table starts in sector 1 */
for (i = 1; i < (map_count + 1); i++) {
bloc = (i * HFS_BLOCSIZE) / bloc_size;
pos = (i * HFS_BLOCSIZE) % bloc_size;
DPRINTF("Check part %d of %d (%d %d %d)\n",
i, map_count, bloc, pos, bloc_size);
bd_seek(bd, bloc, pos);
if (bd_read(bd, buffer, HFS_BLOCSIZE) < 0) {
ERROR("%s sector_read failed (%d)\n", __func__, i);
goto error;
}
partmap = (Mac_partmap_t *)buffer;
if (partmap->signature[0] != 'P' || partmap->signature[1] != 'M' ) {
ERROR("%s bad partition signature (%c %c)\n",
__func__, partmap->signature[0], partmap->signature[1]);
goto error;
}
/* We found at least one Apple partition map,
* so we won't have to try to parse with other partition mappings.
*/
for (type = partmap->type; (type - partmap->type) < 32; type++) {
if (*type != '\0')
break;
}
if (partmap->name[0] == '\0') {
sprintf(tmp, "part%d", i);
name = tmp;
} else {
name = partmap->name;
}
/* Regular Apple partition */
part = malloc(sizeof(part_t));
if (part == NULL) {
ERROR("%s: can't allocate partition\n", __func__);
return NULL;
}
memset(part, 0, sizeof(part_t));
part->start = partmap->start_bloc;
part->size = partmap->bloc_cnt;
part_set_blocsize(bd, part, HFS_BLOCSIZE);
len = 32 - (type - partmap->type);
if (len == 0) {
/* Place holder. Skip it */
DPRINTF("%s placeholder part\t%d\n", __func__, i);
part->flags = PART_TYPE_APPLE | PART_FLAG_DUMMY;
part_register(bd, part, name, i);
} else if (strncmp("Apple_Void", type, 32) == 0) {
/* Void partition. Skip it */
DPRINTF("%s Void part\t%d [%s]\n", __func__, i, type);
part->flags = PART_TYPE_APPLE | PART_FLAG_DUMMY;
part_register(bd, part, name, i);
} else if (strncmp("Apple_Free", type, 32) == 0) {
/* Free space. Skip it */
DPRINTF("%s Free part (%d)\n", __func__, i);
part->flags = PART_TYPE_APPLE | PART_FLAG_DUMMY;
part_register(bd, part, name, i);
} else if (strncmp("Apple_partition_map", type, 32) == 0 ||
strncmp("Apple_Partition_Map", type, 32) == 0
#if 0 // Is this really used or is it just a mistake ?
|| strncmp("Apple_patition_map", type, 32) == 0
#endif
) {
DPRINTF("%s Partition map\t%d [%s]\n", __func__, i, type);
/* We are in the partition map descriptor */
if (i == 1) {
/* Get the real map blocs count */
map_count = partmap->map_cnt;
DPRINTF("%s: map_count: %d\n", __func__, map_count);
} else {
/* Don't about about secondary partition map
* Seems to be used, at least on CDROMs, to describe
* the same partition map with bloc_size = 2048
*/
}
part->flags = PART_TYPE_APPLE | PART_FLAG_DUMMY;
part_register(bd, part, name, i);
} else if (strncmp("Apple_Driver", type, 32) == 0 ||
strncmp("Apple_Driver43", type, 32) == 0 ||
strncmp("Apple_Driver43_CD", type, 32) == 0 ||
strncmp("Apple_Driver_ATA", type, 32) == 0 ||
strncmp("Apple_Driver_ATAPI", type, 32) == 0 ||
strncmp("Apple_FWDriver", type, 32) == 0 ||
strncmp("Apple_Driver_IOKit", type, 32) == 0) {
/* Drivers. don't care for now */
DPRINTF("%s Drivers part\t%d [%s]\n", __func__, i, type);
part->flags = PART_TYPE_APPLE | PART_FLAG_DRIVER;
part_register(bd, part, name, i);
} else if (strncmp("Apple_Patches", type, 32) == 0) {
/* Patches: don't care for now */
part->flags = PART_TYPE_APPLE | PART_FLAG_PATCH;
part_register(bd, part, name, i);
DPRINTF("%s Patches part\t%d [%s]\n", __func__, i, type);
} else if (strncmp("Apple_HFS", type, 32) == 0 ||
strncmp("Apple_MFS", type, 32) == 0 ||
strncmp("Apple_UFS", type, 32) == 0 ||
strncmp("Apple_PRODOS", type, 32) == 0 ||
strncmp("Apple_UNIX_SVR2", type, 32) == 0 ||
strncmp("Linux", type, 32) == 0 ||
strncmp("NetBSD/macppc", type, 32) == 0 ||
strncmp("Apple_boot", type, 32) == 0 ||
strncmp("Apple_bootstrap", type, 32) == 0 ||
strncmp("Apple_Bootstrap", type, 32) == 0) {
DPRINTF("%s Fs part\t%d [%s]\n", __func__, i, type);
/* Filesystems / boot partitions */
flags = partmap->flags;
start = partmap->start_bloc * HFS_BLOCSIZE;
count = partmap->bloc_cnt * HFS_BLOCSIZE;
if (partmap->boot_size == 0 || partmap->boot_load == 0) {
printf("Not a bootable partition %d %d (%p %p)\n",
partmap->boot_size, partmap->boot_load,
boot_part, part);
part->flags = PART_TYPE_APPLE | PART_FLAG_FS;
} else {
part->boot_start.bloc = partmap->boot_start;
part->boot_start.offset = 0;
part->boot_size.bloc = partmap->boot_size / HFS_BLOCSIZE;
#if 0
printf("%0x %0x %0x\n", partmap->boot_size, HFS_BLOCSIZE,
part->boot_size.bloc);
#endif
part->boot_size.offset = (partmap->boot_size) % HFS_BLOCSIZE;
part->boot_load = partmap->boot_load;
part->boot_entry = partmap->boot_entry;
fs_raw_set_bootfile(part, part->boot_start.bloc,
part->boot_start.offset,
part->boot_size.bloc,
part->boot_size.offset);
boot_part = part;
part->flags = PART_TYPE_APPLE | PART_FLAG_FS | PART_FLAG_BOOT;
}
printf("Partition: %d '%s' '%s' st %0x size %0x",
i, name, type, partmap->start_bloc, partmap->bloc_cnt);
#ifndef DEBUG
printf("\n");
#endif
DPRINTF(" - %0x %0x %p %p\n",
partmap->boot_start, partmap->boot_size, part, part->fs);
DPRINTF(" boot %0x %0x load %0x entry %0x\n",
part->boot_start.bloc, part->boot_size.bloc,
part->boot_load, part->boot_entry);
DPRINTF(" load %0x entry %0x %0x\n",
partmap->boot_load2, partmap->boot_entry2, HFS_BLOCSIZE);
part_register(bd, part, name, i);
} else {
memcpy(tmp, type, 32);
tmp[32] = '\0';
ERROR("Unknown partition type [%s]\n", tmp);
part->flags = PART_TYPE_APPLE | PART_FLAG_DUMMY;
part_register(bd, part, name, i);
}
}
error:
free(buffer);
return boot_part;
}
|
