1 | /*␊ |
2 | * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.␊ |
3 | *␊ |
4 | * @APPLE_LICENSE_HEADER_START@␊ |
5 | * ␊ |
6 | * Portions Copyright (c) 1999-2003 Apple Computer, Inc. All Rights␊ |
7 | * Reserved. This file contains Original Code and/or Modifications of␊ |
8 | * Original Code as defined in and that are subject to the Apple Public␊ |
9 | * Source License Version 2.0 (the "License"). You may not use this file␊ |
10 | * except in compliance with the License. Please obtain a copy of the␊ |
11 | * License at http://www.apple.com/publicsource and read it before using␊ |
12 | * this file.␊ |
13 | * ␊ |
14 | * The Original Code and all software distributed under the License are␊ |
15 | * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
16 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
17 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
18 | * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the␊ |
19 | * License for the specific language governing rights and limitations␊ |
20 | * under the License.␊ |
21 | * ␊ |
22 | * @APPLE_LICENSE_HEADER_END@␊ |
23 | */␊ |
24 | /* ␊ |
25 | * Mach Operating System␊ |
26 | * Copyright (c) 1990 Carnegie-Mellon University␊ |
27 | * Copyright (c) 1989 Carnegie-Mellon University␊ |
28 | * All rights reserved. The CMU software License Agreement specifies␊ |
29 | * the terms and conditions for use and redistribution.␊ |
30 | */␊ |
31 | ␊ |
32 | /*␊ |
33 | * INTEL CORPORATION PROPRIETARY INFORMATION␊ |
34 | *␊ |
35 | * This software is supplied under the terms of a license agreement or ␊ |
36 | * nondisclosure agreement with Intel Corporation and may not be copied ␊ |
37 | * nor disclosed except in accordance with the terms of that agreement.␊ |
38 | *␊ |
39 | * Copyright 1988, 1989 Intel Corporation␊ |
40 | */␊ |
41 | ␊ |
42 | /*␊ |
43 | * Copyright 1993 NeXT Computer, Inc.␊ |
44 | * All rights reserved.␊ |
45 | */␊ |
46 | ␊ |
47 | /*␊ |
48 | * Copyright 2007 VMware Inc.␊ |
49 | * "Preboot" ramdisk support added by David Elliott␊ |
50 | * GPT support added by David Elliott. Based on IOGUIDPartitionScheme.cpp.␊ |
51 | */␊ |
52 | ␊ |
53 | //Azi: style the rest later...␊ |
54 | ␊ |
55 | // Allow UFS_SUPPORT to be overridden with preprocessor option.␊ |
56 | #ifndef UFS_SUPPORT␊ |
57 | // zef: Disabled UFS support␊ |
58 | #define UFS_SUPPORT 0␊ |
59 | #endif␊ |
60 | ␊ |
61 | #if UFS_SUPPORT␊ |
62 | #include "ufs.h"␊ |
63 | #endif␊ |
64 | #include <limits.h>␊ |
65 | #include <IOKit/storage/IOApplePartitionScheme.h>␊ |
66 | #include <IOKit/storage/IOGUIDPartitionScheme.h>␊ |
67 | #include "libsaio.h"␊ |
68 | #include "boot.h"␊ |
69 | #include "bootstruct.h"␊ |
70 | #include "memory.h"␊ |
71 | #include "fdisk.h"␊ |
72 | #include "hfs.h"␊ |
73 | #include "ntfs.h"␊ |
74 | #include "msdos.h"␊ |
75 | #include "ext2fs.h"␊ |
76 | #include "befs.h"␊ |
77 | #include "freebsd.h"␊ |
78 | #include "openbsd.h"␊ |
79 | #include "xml.h"␊ |
80 | #include "disk.h"␊ |
81 | // For EFI_GUID␊ |
82 | #include "efi.h"␊ |
83 | #include "efi_tables.h"␊ |
84 | ␊ |
85 | typedef struct gpt_hdr gpt_hdr;␊ |
86 | typedef struct gpt_ent gpt_ent;␊ |
87 | ␊ |
88 | #define PROBEFS_SIZE BPS * 4 /* buffer size for filesystem probe */␊ |
89 | #define CD_BPS 2048 /* CD-ROM block size */␊ |
90 | #define N_CACHE_SECS (BIOS_LEN / BPS) /* Must be a multiple of 4 for CD-ROMs */␊ |
91 | #define UFS_FRONT_PORCH 0␊ |
92 | #define kAPMSector 2 /* Sector number of Apple partition map */␊ |
93 | #define kAPMCDSector 8 /* Translated sector of Apple partition map on a CD */␊ |
94 | ␊ |
95 | /*␊ |
96 | * IORound and IOTrunc convenience functions, in the spirit␊ |
97 | * of vm's round_page() and trunc_page().␊ |
98 | */␊ |
99 | #define IORound(value,multiple) \␊ |
100 | ((((value) + (multiple) - 1) / (multiple)) * (multiple))␊ |
101 | ␊ |
102 | #define IOTrunc(value,multiple) \␊ |
103 | (((value) / (multiple)) * (multiple));␊ |
104 | ␊ |
105 | /*␊ |
106 | * trackbuf points to the start of the track cache. Biosread()␊ |
107 | * will store the sectors read from disk to this memory area.␊ |
108 | *␊ |
109 | * biosbuf points to a sector within the track cache, and is␊ |
110 | * updated by Biosread().␊ |
111 | */␊ |
112 | static char * const trackbuf = (char *) ptov(BIOS_ADDR);␊ |
113 | static char * biosbuf;␊ |
114 | ␊ |
115 | /*␊ |
116 | * Map a disk drive to bootable volumes contained within.␊ |
117 | */␊ |
118 | struct DiskBVMap {␊ |
119 | int biosdev; // BIOS device number (unique)␊ |
120 | BVRef bvr; // chain of boot volumes on the disk␊ |
121 | int bvrcnt; // number of boot volumes␊ |
122 | struct DiskBVMap * next; // linkage to next mapping␊ |
123 | };␊ |
124 | ␊ |
125 | static struct DiskBVMap * gDiskBVMap = NULL;␊ |
126 | static struct disk_blk0 * gBootSector = NULL;␊ |
127 | ␊ |
128 | // Function pointers to be filled in if ramdisks are available:␊ |
129 | int (*p_ramdiskReadBytes)( int biosdev, unsigned int blkno,␊ |
130 | unsigned int byteoff,␊ |
131 | unsigned int byteCount, void * buffer ) = NULL;␊ |
132 | int (*p_get_ramdisk_info)(int biosdev, struct driveInfo *dip) = NULL;␊ |
133 | ␊ |
134 | static bool getOSVersion(BVRef bvr, char *str);␊ |
135 | ␊ |
136 | extern void spinActivityIndicator(int sectors);␊ |
137 | ␊ |
138 | //==========================================================================␊ |
139 | ␊ |
140 | static int getDriveInfo( int biosdev, struct driveInfo *dip )␊ |
141 | {␊ |
142 | static struct driveInfo cached_di;␊ |
143 | int cc;␊ |
144 | ␊ |
145 | // Real BIOS devices are 8-bit, so anything above that is for internal use.␊ |
146 | // Don't cache ramdisk drive info since it doesn't require several BIOS␊ |
147 | // calls and is thus not worth it.␊ |
148 | if(biosdev >= 0x100)␊ |
149 | {␊ |
150 | if(p_get_ramdisk_info != NULL)␊ |
151 | cc = (*p_get_ramdisk_info)(biosdev, dip);␊ |
152 | else␊ |
153 | cc = -1;␊ |
154 | if(cc < 0)␊ |
155 | {␊ |
156 | dip->valid = 0;␊ |
157 | return -1;␊ |
158 | }␊ |
159 | else␊ |
160 | return 0;␊ |
161 | }␊ |
162 | ␊ |
163 | if ( !cached_di.valid || biosdev != cached_di.biosdev )␊ |
164 | {␊ |
165 | ␉cc = get_drive_info(biosdev, &cached_di);␊ |
166 | if (cc < 0) {␊ |
167 | ␉ cached_di.valid = 0;␊ |
168 | DEBUG_DISK(("get_drive_info returned error\n"));␊ |
169 | ␉ return (-1); // BIOS call error␊ |
170 | ␉}␊ |
171 | }␊ |
172 | ␊ |
173 | bcopy(&cached_di, dip, sizeof(cached_di));␊ |
174 | ␊ |
175 | return 0;␊ |
176 | }␊ |
177 | ␊ |
178 | //==========================================================================␊ |
179 | // Maps (E)BIOS return codes to message strings.␊ |
180 | ␊ |
181 | struct NamedValue {␊ |
182 | unsigned char value;␊ |
183 | const char * name;␊ |
184 | };␊ |
185 | ␊ |
186 | static const char * getNameForValue( const struct NamedValue * nameTable,␊ |
187 | unsigned char value )␊ |
188 | {␊ |
189 | const struct NamedValue * np;␊ |
190 | ␊ |
191 | for ( np = nameTable; np->value; np++)␊ |
192 | if (np->value == value)␊ |
193 | return np->name;␊ |
194 | ␊ |
195 | return NULL;␊ |
196 | }␊ |
197 | ␊ |
198 | #define ECC_CORRECTED_ERR 0x11␊ |
199 | ␊ |
200 | static const struct NamedValue bios_errors[] = {␊ |
201 | { 0x10, "Media error" },␊ |
202 | { 0x11, "Corrected ECC error" },␊ |
203 | { 0x20, "Controller or device error" },␊ |
204 | { 0x40, "Seek failed" },␊ |
205 | { 0x80, "Device timeout" },␊ |
206 | { 0xAA, "Drive not ready" },␊ |
207 | { 0x00, 0 }␊ |
208 | };␊ |
209 | ␊ |
210 | static const char * bios_error(int errnum)␊ |
211 | {␊ |
212 | static char errorstr[] = "Error 0x00";␊ |
213 | const char * errname;␊ |
214 | ␊ |
215 | errname = getNameForValue( bios_errors, errnum );␊ |
216 | if ( errname ) return errname;␊ |
217 | ␊ |
218 | sprintf(errorstr, "Error 0x%02x", errnum);␊ |
219 | return errorstr; // No string, print error code only␊ |
220 | }␊ |
221 | ␊ |
222 | //==========================================================================␊ |
223 | // Use BIOS INT13 calls to read the sector specified. This function will␊ |
224 | // also perform read-ahead to cache a few subsequent sector to the sector␊ |
225 | // cache.␊ |
226 | // ␊ |
227 | // Return:␊ |
228 | // 0 on success, or an error code from INT13/F2 or INT13/F42 BIOS call.␊ |
229 | ␊ |
230 | static bool cache_valid = false;␊ |
231 | ␊ |
232 | static int Biosread( int biosdev, unsigned long long secno )␊ |
233 | {␊ |
234 | static int xbiosdev, xcyl, xhead;␊ |
235 | static unsigned int xsec, xnsecs;␊ |
236 | struct driveInfo di;␊ |
237 | ␊ |
238 | int rc = -1;␊ |
239 | int cyl, head, sec;␊ |
240 | int tries = 0;␊ |
241 | int bps, divisor;␊ |
242 | ␊ |
243 | if (getDriveInfo(biosdev, &di) < 0) {␊ |
244 | ␉return -1;␊ |
245 | }␊ |
246 | if (di.no_emulation) {␊ |
247 | ␉/* Always assume 2k block size; BIOS may lie about geometry */␊ |
248 | ␉bps = 2048;␊ |
249 | } else {␊ |
250 | ␉bps = di.di.params.phys_nbps;␊ |
251 | if (bps == 0) {␊ |
252 | return -1;␊ |
253 | }␊ |
254 | }␊ |
255 | divisor = bps / BPS;␊ |
256 | ␊ |
257 | DEBUG_DISK(("Biosread dev %x sec %d bps %d\n", biosdev, secno, bps));␊ |
258 | ␊ |
259 | // To read the disk sectors, use EBIOS if we can. Otherwise,␊ |
260 | // revert to the standard BIOS calls.␊ |
261 | ␊ |
262 | if ((biosdev >= kBIOSDevTypeHardDrive) &&␊ |
263 | (di.uses_ebios & EBIOS_FIXED_DISK_ACCESS))␊ |
264 | {␊ |
265 | if (cache_valid &&␊ |
266 | (biosdev == xbiosdev) &&␊ |
267 | (secno >= xsec) &&␊ |
268 | ((unsigned int)secno < (xsec + xnsecs)))␊ |
269 | {␊ |
270 | biosbuf = trackbuf + (BPS * (secno - xsec));␊ |
271 | return 0;␊ |
272 | }␊ |
273 | ␊ |
274 | xnsecs = N_CACHE_SECS;␊ |
275 | xsec = (secno / divisor) * divisor;␊ |
276 | cache_valid = false;␊ |
277 | ␊ |
278 | while ((rc = ebiosread(biosdev, secno / divisor, xnsecs / divisor)) && (++tries < 5))␊ |
279 | {␊ |
280 | if (rc == ECC_CORRECTED_ERR) {␊ |
281 | /* Ignore corrected ECC errors */␊ |
282 | rc = 0;␊ |
283 | break;␊ |
284 | }␊ |
285 | error(" EBIOS read error: %s\n", bios_error(rc), rc);␊ |
286 | error(" Block 0x%x Sectors %d\n", secno, xnsecs);␊ |
287 | sleep(1);␊ |
288 | }␊ |
289 | }␊ |
290 | else␊ |
291 | {␊ |
292 | ␉/* spc = spt * heads */␊ |
293 | ␉int spc = (di.di.params.phys_spt * di.di.params.phys_heads);␊ |
294 | cyl = secno / spc;␊ |
295 | head = (secno % spc) / di.di.params.phys_spt;␊ |
296 | sec = secno % di.di.params.phys_spt;␊ |
297 | ␊ |
298 | if (cache_valid &&␊ |
299 | (biosdev == xbiosdev) &&␊ |
300 | (cyl == xcyl) &&␊ |
301 | (head == xhead) &&␊ |
302 | ((unsigned int)sec >= xsec) &&␊ |
303 | ((unsigned int)sec < (xsec + xnsecs)))␊ |
304 | {␊ |
305 | // this sector is in trackbuf cache␊ |
306 | biosbuf = trackbuf + (BPS * (sec - xsec));␊ |
307 | return 0;␊ |
308 | }␊ |
309 | ␊ |
310 | // Cache up to a track worth of sectors, but do not cross a␊ |
311 | // track boundary.␊ |
312 | ␊ |
313 | xcyl = cyl;␊ |
314 | xhead = head;␊ |
315 | xsec = sec;␊ |
316 | xnsecs = ((unsigned int)(sec + N_CACHE_SECS) > di.di.params.phys_spt) ? (di.di.params.phys_spt - sec) : N_CACHE_SECS;␊ |
317 | cache_valid = false;␊ |
318 | ␊ |
319 | while ((rc = biosread(biosdev, cyl, head, sec, xnsecs)) &&␊ |
320 | (++tries < 5))␊ |
321 | {␊ |
322 | if (rc == ECC_CORRECTED_ERR) {␊ |
323 | /* Ignore corrected ECC errors */␊ |
324 | rc = 0;␊ |
325 | break;␊ |
326 | }␊ |
327 | error(" BIOS read error: %s\n", bios_error(rc), rc);␊ |
328 | error(" Block %d, Cyl %d Head %d Sector %d\n",␊ |
329 | secno, cyl, head, sec);␊ |
330 | sleep(1);␊ |
331 | }␊ |
332 | }␊ |
333 | ␊ |
334 | // If the BIOS reported success, mark the sector cache as valid.␊ |
335 | ␊ |
336 | if (rc == 0) {␊ |
337 | cache_valid = true;␊ |
338 | }␊ |
339 | biosbuf = trackbuf + (secno % divisor) * BPS;␊ |
340 | xbiosdev = biosdev;␊ |
341 | ␊ |
342 | spinActivityIndicator(xnsecs);␊ |
343 | ␊ |
344 | return rc;␊ |
345 | }␊ |
346 | ␊ |
347 | //==========================================================================␊ |
348 | ␊ |
349 | int testBiosread( int biosdev, unsigned long long secno )␊ |
350 | {␊ |
351 | ␉return Biosread(biosdev, secno);␊ |
352 | }␊ |
353 | ␊ |
354 | //==========================================================================␊ |
355 | ␊ |
356 | static int readBytes( int biosdev, unsigned long long blkno,␊ |
357 | unsigned int byteoff,␊ |
358 | unsigned int byteCount, void * buffer )␊ |
359 | {␊ |
360 | // ramdisks require completely different code for reading.␊ |
361 | if(p_ramdiskReadBytes != NULL && biosdev >= 0x100)␊ |
362 | return (*p_ramdiskReadBytes)(biosdev, blkno, byteoff, byteCount, buffer);␊ |
363 | ␊ |
364 | char * cbuf = (char *) buffer;␊ |
365 | int error;␊ |
366 | int copy_len;␊ |
367 | ␊ |
368 | DEBUG_DISK(("%s: dev %x block %x [%d] -> 0x%x...", __FUNCTION__,␊ |
369 | biosdev, blkno, byteCount, (unsigned)cbuf));␊ |
370 | ␊ |
371 | for ( ; byteCount; cbuf += copy_len, blkno++ )␊ |
372 | {␊ |
373 | error = Biosread( biosdev, blkno );␊ |
374 | if ( error )␊ |
375 | {␊ |
376 | DEBUG_DISK(("error\n"));␊ |
377 | return (-1);␊ |
378 | }␊ |
379 | ␊ |
380 | copy_len = ((byteCount + byteoff) > BPS) ? (BPS - byteoff) : byteCount;␊ |
381 | bcopy( biosbuf + byteoff, cbuf, copy_len );␊ |
382 | byteCount -= copy_len;␊ |
383 | byteoff = 0;␊ |
384 | }␊ |
385 | ␊ |
386 | DEBUG_DISK(("done\n"));␊ |
387 | ␊ |
388 | return 0; ␊ |
389 | }␊ |
390 | ␊ |
391 | //==========================================================================␊ |
392 | ␊ |
393 | static int isExtendedFDiskPartition( const struct fdisk_part * part )␊ |
394 | {␊ |
395 | static unsigned char extParts[] =␊ |
396 | {␊ |
397 | 0x05, /* Extended */␊ |
398 | 0x0f, /* Win95 extended */␊ |
399 | 0x85, /* Linux extended */␊ |
400 | };␊ |
401 | ␊ |
402 | unsigned int i;␊ |
403 | ␊ |
404 | for (i = 0; i < sizeof(extParts)/sizeof(extParts[0]); i++)␊ |
405 | {␊ |
406 | if (extParts[i] == part->systid) return 1;␊ |
407 | }␊ |
408 | return 0;␊ |
409 | }␊ |
410 | ␊ |
411 | //==========================================================================␊ |
412 | ␊ |
413 | static int getNextFDiskPartition( int biosdev, int * partno,␊ |
414 | const struct fdisk_part ** outPart )␊ |
415 | {␊ |
416 | static int sBiosdev = -1;␊ |
417 | static int sNextPartNo;␊ |
418 | static unsigned int sFirstBase;␊ |
419 | static unsigned int sExtBase;␊ |
420 | static unsigned int sExtDepth;␊ |
421 | static struct fdisk_part * sExtPart;␊ |
422 | struct fdisk_part * part;␊ |
423 | ␊ |
424 | if ( sBiosdev != biosdev || *partno < 0 )␊ |
425 | {␊ |
426 | // Fetch MBR.␊ |
427 | if ( readBootSector( biosdev, DISK_BLK0, 0 ) ) return 0;␊ |
428 | ␊ |
429 | sBiosdev = biosdev;␊ |
430 | sNextPartNo = 0;␊ |
431 | sFirstBase = 0;␊ |
432 | sExtBase = 0;␊ |
433 | sExtDepth = 0;␊ |
434 | sExtPart = NULL;␊ |
435 | }␊ |
436 | ␊ |
437 | while (1)␊ |
438 | {␊ |
439 | part = NULL;␊ |
440 | ␊ |
441 | if ( sNextPartNo < FDISK_NPART )␊ |
442 | {␊ |
443 | part = (struct fdisk_part *) gBootSector->parts[sNextPartNo];␊ |
444 | }␊ |
445 | else if ( sExtPart )␊ |
446 | {␊ |
447 | unsigned int blkno = sExtPart->relsect + sFirstBase;␊ |
448 | ␊ |
449 | // Save the block offset of the first extended partition.␊ |
450 | ␊ |
451 | if (sExtDepth == 0) {␊ |
452 | sFirstBase = blkno;␊ |
453 | }␊ |
454 | sExtBase = blkno;␊ |
455 | ␊ |
456 | // Load extended partition table.␊ |
457 | ␊ |
458 | if ( readBootSector( biosdev, blkno, 0 ) == 0 )␊ |
459 | {␊ |
460 | sNextPartNo = 0;␊ |
461 | sExtDepth++;␊ |
462 | sExtPart = NULL;␊ |
463 | continue;␊ |
464 | }␊ |
465 | // Fall through to part == NULL␊ |
466 | }␊ |
467 | ␊ |
468 | if ( part == NULL ) break; // Reached end of partition chain.␊ |
469 | ␊ |
470 | // Advance to next partition number.␊ |
471 | ␊ |
472 | sNextPartNo++;␊ |
473 | ␊ |
474 | if ( isExtendedFDiskPartition(part) )␊ |
475 | {␊ |
476 | sExtPart = part;␊ |
477 | continue;␊ |
478 | }␊ |
479 | ␊ |
480 | // Skip empty slots.␊ |
481 | ␊ |
482 | if ( part->systid == 0x00 )␊ |
483 | {␊ |
484 | continue;␊ |
485 | }␊ |
486 | ␊ |
487 | // Change relative offset to an absolute offset.␊ |
488 | part->relsect += sExtBase;␊ |
489 | ␊ |
490 | *outPart = part;␊ |
491 | *partno = sExtDepth ? (int)(sExtDepth + FDISK_NPART) : sNextPartNo;␊ |
492 | ␊ |
493 | break;␊ |
494 | }␊ |
495 | ␊ |
496 | return (part != NULL);␊ |
497 | }␊ |
498 | ␊ |
499 | //==========================================================================␊ |
500 | ␊ |
501 | static BVRef newFDiskBVRef( int biosdev, int partno, unsigned int blkoff,␊ |
502 | const struct fdisk_part * part,␊ |
503 | FSInit initFunc, FSLoadFile loadFunc,␊ |
504 | FSReadFile readFunc,␊ |
505 | FSGetDirEntry getdirFunc,␊ |
506 | FSGetFileBlock getBlockFunc,␊ |
507 | FSGetUUID getUUIDFunc,␊ |
508 | BVGetDescription getDescriptionFunc,␊ |
509 | BVFree bvFreeFunc,␊ |
510 | int probe, int type, unsigned int bvrFlags )␊ |
511 | {␊ |
512 | BVRef bvr = (BVRef) malloc( sizeof(*bvr) );␊ |
513 | if ( bvr )␊ |
514 | {␊ |
515 | bzero(bvr, sizeof(*bvr));␊ |
516 | ␊ |
517 | bvr->biosdev = biosdev;␊ |
518 | bvr->part_no = partno;␊ |
519 | bvr->part_boff = blkoff;␊ |
520 | bvr->part_type = part->systid;␊ |
521 | bvr->fs_loadfile = loadFunc;␊ |
522 | bvr->fs_readfile = readFunc;␊ |
523 | bvr->fs_getdirentry = getdirFunc;␊ |
524 | bvr->fs_getfileblock= getBlockFunc;␊ |
525 | bvr->fs_getuuid = getUUIDFunc;␊ |
526 | bvr->description = getDescriptionFunc;␊ |
527 | bvr->type = type;␊ |
528 | bvr->bv_free = bvFreeFunc;␊ |
529 | ␊ |
530 | if ((part->bootid & FDISK_ACTIVE) && (part->systid == FDISK_HFS))␊ |
531 | bvr->flags |= kBVFlagPrimary;␊ |
532 | ␊ |
533 | // Probe the filesystem.␊ |
534 | ␊ |
535 | if ( initFunc )␊ |
536 | {␊ |
537 | bvr->flags |= kBVFlagNativeBoot;␊ |
538 | ␊ |
539 | if ( probe && initFunc( bvr ) != 0 )␊ |
540 | {␊ |
541 | // filesystem probe failed.␊ |
542 | ␊ |
543 | DEBUG_DISK(("%s: failed probe on dev %x part %d\n",␊ |
544 | __FUNCTION__, biosdev, partno));␊ |
545 | ␊ |
546 | (*bvr->bv_free)(bvr);␊ |
547 | bvr = NULL;␊ |
548 | }␊ |
549 | if ( readBootSector( biosdev, blkoff, (void *)0x7e00 ) == 0 )␊ |
550 | {␊ |
551 | ␉bvr->flags |= kBVFlagBootable;␊ |
552 | }␊ |
553 | }␊ |
554 | else if ( readBootSector( biosdev, blkoff, (void *)0x7e00 ) == 0 )␊ |
555 | {␊ |
556 | bvr->flags |= kBVFlagForeignBoot;␊ |
557 | }␊ |
558 | else␊ |
559 | {␊ |
560 | (*bvr->bv_free)(bvr);␊ |
561 | bvr = NULL;␊ |
562 | }␊ |
563 | }␊ |
564 | if (bvr) bvr->flags |= bvrFlags;␊ |
565 | return bvr;␊ |
566 | }␊ |
567 | ␊ |
568 | //==========================================================================␊ |
569 | ␊ |
570 | BVRef newAPMBVRef( int biosdev, int partno, unsigned int blkoff,␊ |
571 | const DPME * part,␊ |
572 | FSInit initFunc, FSLoadFile loadFunc,␊ |
573 | FSReadFile readFunc,␊ |
574 | FSGetDirEntry getdirFunc,␊ |
575 | FSGetFileBlock getBlockFunc,␊ |
576 | FSGetUUID getUUIDFunc,␊ |
577 | BVGetDescription getDescriptionFunc,␊ |
578 | BVFree bvFreeFunc,␊ |
579 | int probe, int type, unsigned int bvrFlags )␊ |
580 | {␊ |
581 | BVRef bvr = (BVRef) malloc( sizeof(*bvr) );␊ |
582 | if ( bvr )␊ |
583 | {␊ |
584 | bzero(bvr, sizeof(*bvr));␊ |
585 | ␊ |
586 | bvr->biosdev = biosdev;␊ |
587 | bvr->part_no = partno;␊ |
588 | bvr->part_boff = blkoff;␊ |
589 | bvr->fs_loadfile = loadFunc;␊ |
590 | bvr->fs_readfile = readFunc;␊ |
591 | bvr->fs_getdirentry = getdirFunc;␊ |
592 | bvr->fs_getfileblock= getBlockFunc;␊ |
593 | bvr->fs_getuuid = getUUIDFunc;␊ |
594 | bvr->description = getDescriptionFunc;␊ |
595 | bvr->type = type;␊ |
596 | bvr->bv_free = bvFreeFunc;␊ |
597 | strlcpy(bvr->name, part->dpme_name, DPISTRLEN);␊ |
598 | strlcpy(bvr->type_name, part->dpme_type, DPISTRLEN);␊ |
599 | ␊ |
600 | /*␊ |
601 | if ( part->bootid & FDISK_ACTIVE )␊ |
602 | bvr->flags |= kBVFlagPrimary;␊ |
603 | */␊ |
604 | ␊ |
605 | // Probe the filesystem.␊ |
606 | ␊ |
607 | if ( initFunc )␊ |
608 | {␊ |
609 | bvr->flags |= kBVFlagNativeBoot | kBVFlagBootable | kBVFlagSystemVolume;␊ |
610 | ␊ |
611 | if ( probe && initFunc( bvr ) != 0 )␊ |
612 | {␊ |
613 | // filesystem probe failed.␊ |
614 | ␊ |
615 | DEBUG_DISK(("%s: failed probe on dev %x part %d\n",␊ |
616 | __FUNCTION__, biosdev, partno));␊ |
617 | ␊ |
618 | (*bvr->bv_free)(bvr);␊ |
619 | bvr = NULL;␊ |
620 | }␊ |
621 | }␊ |
622 | /*␊ |
623 | else if ( readBootSector( biosdev, blkoff, (void *)0x7e00 ) == 0 )␊ |
624 | {␊ |
625 | bvr->flags |= kBVFlagForeignBoot;␊ |
626 | }␊ |
627 | */␊ |
628 | else␊ |
629 | {␊ |
630 | (*bvr->bv_free)(bvr);␊ |
631 | bvr = NULL;␊ |
632 | }␊ |
633 | }␊ |
634 | if (bvr) bvr->flags |= bvrFlags;␊ |
635 | return bvr;␊ |
636 | }␊ |
637 | ␊ |
638 | //==========================================================================␊ |
639 | ␊ |
640 | // GUID's in LE form:␊ |
641 | // HFS+ partition - 48465300-0000-11AA-AA11-00306543ECAC␊ |
642 | EFI_GUID const GPT_HFS_GUID␉␉ = { 0x48465300, 0x0000, 0x11AA, { 0xAA, 0x11, 0x00, 0x30, 0x65, 0x43, 0xEC, 0xAC } };␊ |
643 | ␊ |
644 | // turbo - Apple Boot Partition - 426F6F74-0000-11AA-AA11-00306543ECAC␊ |
645 | EFI_GUID const GPT_BOOT_GUID␉ = { 0x426F6F74, 0x0000, 0x11AA, { 0xAA, 0x11, 0x00, 0x30, 0x65, 0x43, 0xEC, 0xAC } };␊ |
646 | ␊ |
647 | // turbo - or an EFI System Partition - C12A7328-F81F-11D2-BA4B-00A0C93EC93B␊ |
648 | EFI_GUID const GPT_EFISYS_GUID␉ = { 0xC12A7328, 0xF81F, 0x11D2, { 0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B } };␊ |
649 | ␊ |
650 | // zef - Basic Data Partition - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 for foreign OS support␊ |
651 | EFI_GUID const GPT_BASICDATA_GUID = { 0xEBD0A0A2, 0xB9E5, 0x4433, { 0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7 } };␊ |
652 | ␊ |
653 | // Microsoft Reserved Partition - E3C9E316-0B5C-4DB8-817DF92DF00215AE␊ |
654 | EFI_GUID const GPT_BASICDATA2_GUID = { 0xE3C9E316, 0x0B5C, 0x4DB8, { 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE } };␊ |
655 | ␊ |
656 | ␊ |
657 | BVRef newGPTBVRef( int biosdev, int partno, unsigned int blkoff,␊ |
658 | const gpt_ent * part,␊ |
659 | FSInit initFunc, FSLoadFile loadFunc,␊ |
660 | FSReadFile readFunc,␊ |
661 | FSGetDirEntry getdirFunc,␊ |
662 | FSGetFileBlock getBlockFunc,␊ |
663 | FSGetUUID getUUIDFunc,␊ |
664 | BVGetDescription getDescriptionFunc,␊ |
665 | BVFree bvFreeFunc,␊ |
666 | int probe, int type, unsigned int bvrFlags )␊ |
667 | {␊ |
668 | BVRef bvr = (BVRef) malloc( sizeof(*bvr) );␊ |
669 | if ( bvr )␊ |
670 | {␊ |
671 | bzero(bvr, sizeof(*bvr));␊ |
672 | ␊ |
673 | bvr->biosdev = biosdev;␊ |
674 | bvr->part_no = partno;␊ |
675 | bvr->part_boff = blkoff;␊ |
676 | bvr->fs_loadfile = loadFunc;␊ |
677 | bvr->fs_readfile = readFunc;␊ |
678 | bvr->fs_getdirentry = getdirFunc;␊ |
679 | bvr->fs_getfileblock= getBlockFunc;␊ |
680 | bvr->fs_getuuid = getUUIDFunc;␊ |
681 | bvr->description = getDescriptionFunc;␊ |
682 | ␉bvr->type = type;␊ |
683 | bvr->bv_free = bvFreeFunc;␊ |
684 | // FIXME: UCS-2 -> UTF-8 the name␊ |
685 | strlcpy(bvr->name, "----", DPISTRLEN);␊ |
686 | if ( (efi_guid_compare(&GPT_BOOT_GUID, (EFI_GUID const*)part->ent_type) == 0) ||␊ |
687 | (efi_guid_compare(&GPT_HFS_GUID, (EFI_GUID const*)part->ent_type) == 0) )␊ |
688 | strlcpy(bvr->type_name, "GPT HFS+", DPISTRLEN);␊ |
689 | else␊ |
690 | strlcpy(bvr->type_name, "GPT Unknown", DPISTRLEN);␊ |
691 | ␊ |
692 | /*␊ |
693 | if ( part->bootid & FDISK_ACTIVE )␊ |
694 | bvr->flags |= kBVFlagPrimary;␊ |
695 | */␊ |
696 | ␊ |
697 | // Probe the filesystem.␊ |
698 | ␊ |
699 | if ( initFunc )␊ |
700 | {␊ |
701 | bvr->flags |= kBVFlagNativeBoot;␊ |
702 | ␊ |
703 | if ( probe && initFunc( bvr ) != 0 )␊ |
704 | {␊ |
705 | // filesystem probe failed.␊ |
706 | ␊ |
707 | DEBUG_DISK(("%s: failed probe on dev %x part %d\n",␊ |
708 | __FUNCTION__, biosdev, partno));␊ |
709 | ␊ |
710 | (*bvr->bv_free)(bvr);␊ |
711 | bvr = NULL;␊ |
712 | }␊ |
713 | if ( readBootSector( biosdev, blkoff, (void *)0x7e00 ) == 0 )␊ |
714 | {␊ |
715 | ␉bvr->flags |= kBVFlagBootable;␊ |
716 | }␊ |
717 | }␊ |
718 | else if ( readBootSector( biosdev, blkoff, (void *)0x7e00 ) == 0 )␊ |
719 | {␊ |
720 | bvr->flags |= kBVFlagForeignBoot;␊ |
721 | }␊ |
722 | else␊ |
723 | {␊ |
724 | (*bvr->bv_free)(bvr);␊ |
725 | bvr = NULL;␊ |
726 | }␊ |
727 | }␊ |
728 | if (bvr) bvr->flags |= bvrFlags;␊ |
729 | return bvr;␊ |
730 | }␊ |
731 | ␊ |
732 | //==========================================================================␊ |
733 | ␊ |
734 | /* A note on partition numbers:␊ |
735 | * IOKit makes the primary partitions numbers 1-4, and then␊ |
736 | * extended partitions are numbered consecutively 5 and up.␊ |
737 | * So, for example, if you have two primary partitions and␊ |
738 | * one extended partition they will be numbered 1, 2, 5.␊ |
739 | */␊ |
740 | ␊ |
741 | static BVRef diskScanFDiskBootVolumes( int biosdev, int * countPtr )␊ |
742 | {␊ |
743 | const struct fdisk_part * part;␊ |
744 | struct DiskBVMap * map;␊ |
745 | int partno = -1;␊ |
746 | BVRef bvr;␊ |
747 | #if UFS_SUPPORT␊ |
748 | BVRef booterUFS = NULL;␊ |
749 | #endif␊ |
750 | int spc;␊ |
751 | struct driveInfo di;␊ |
752 | boot_drive_info_t *dp;␊ |
753 | ␊ |
754 | /* Initialize disk info */␊ |
755 | if (getDriveInfo(biosdev, &di) != 0) {␊ |
756 | ␉return NULL;␊ |
757 | }␊ |
758 | dp = &di.di;␊ |
759 | spc = (dp->params.phys_spt * dp->params.phys_heads);␊ |
760 | if (spc == 0) {␊ |
761 | ␉/* This is probably a CD-ROM; punt on the geometry. */␊ |
762 | ␉spc = 1;␊ |
763 | }␊ |
764 | ␊ |
765 | do {␊ |
766 | // Create a new mapping.␊ |
767 | ␊ |
768 | map = (struct DiskBVMap *) malloc( sizeof(*map) );␊ |
769 | if ( map )␊ |
770 | {␊ |
771 | map->biosdev = biosdev;␊ |
772 | map->bvr = NULL;␊ |
773 | map->bvrcnt = 0;␊ |
774 | map->next = gDiskBVMap;␊ |
775 | gDiskBVMap = map;␊ |
776 | ␊ |
777 | // Create a record for each partition found on the disk.␊ |
778 | ␊ |
779 | while ( getNextFDiskPartition( biosdev, &partno, &part ) )␊ |
780 | {␊ |
781 | DEBUG_DISK(("%s: part %d [%x]\n", __FUNCTION__,␊ |
782 | partno, part->systid));␊ |
783 | bvr = 0;␊ |
784 | ␊ |
785 | switch ( part->systid )␊ |
786 | {␊ |
787 | #if UFS_SUPPORT␊ |
788 | case FDISK_UFS:␊ |
789 | bvr = newFDiskBVRef(␊ |
790 | biosdev, partno,␊ |
791 | part->relsect + UFS_FRONT_PORCH/BPS,␊ |
792 | part,␊ |
793 | UFSInitPartition,␊ |
794 | UFSLoadFile,␊ |
795 | UFSReadFile,␊ |
796 | UFSGetDirEntry,␊ |
797 | UFSGetFileBlock,␊ |
798 | UFSGetUUID,␊ |
799 | UFSGetDescription,␊ |
800 | UFSFree,␊ |
801 | 0,␊ |
802 | kBIOSDevTypeHardDrive, 0);␊ |
803 | break;␊ |
804 | #endif␊ |
805 | ␊ |
806 | case FDISK_HFS:␊ |
807 | bvr = newFDiskBVRef(␊ |
808 | biosdev, partno,␊ |
809 | part->relsect,␊ |
810 | part,␊ |
811 | HFSInitPartition,␊ |
812 | HFSLoadFile,␊ |
813 | HFSReadFile,␊ |
814 | HFSGetDirEntry,␊ |
815 | HFSGetFileBlock,␊ |
816 | HFSGetUUID,␊ |
817 | HFSGetDescription,␊ |
818 | HFSFree,␊ |
819 | 0,␊ |
820 | kBIOSDevTypeHardDrive, 0);␊ |
821 | break;␊ |
822 | ␊ |
823 | // turbo - we want the booter type scanned also␊ |
824 | case FDISK_BOOTER:␊ |
825 | if (part->bootid & FDISK_ACTIVE)␊ |
826 | gBIOSBootVolume = newFDiskBVRef(␊ |
827 | biosdev, partno,␊ |
828 | part->relsect,␊ |
829 | part,␊ |
830 | HFSInitPartition,␊ |
831 | HFSLoadFile,␊ |
832 | HFSReadFile,␊ |
833 | HFSGetDirEntry,␊ |
834 | HFSGetFileBlock,␊ |
835 | HFSGetUUID,␊ |
836 | HFSGetDescription,␊ |
837 | HFSFree,␊ |
838 | 0,␊ |
839 | kBIOSDevTypeHardDrive, 0);␊ |
840 | break;␊ |
841 | ␊ |
842 | #if UFS_SUPPORT␊ |
843 | case FDISK_BOOTER:␊ |
844 | booterUFS = newFDiskBVRef(␊ |
845 | biosdev, partno,␊ |
846 | ((part->relsect + spc - 1) / spc) * spc,␊ |
847 | part,␊ |
848 | UFSInitPartition,␊ |
849 | UFSLoadFile,␊ |
850 | UFSReadFile,␊ |
851 | UFSGetDirEntry,␊ |
852 | UFSGetFileBlock,␊ |
853 | UFSGetUUID,␊ |
854 | UFSGetDescription,␊ |
855 | UFSFree,␊ |
856 | 0,␊ |
857 | kBIOSDevTypeHardDrive, 0);␊ |
858 | break;␊ |
859 | #endif␊ |
860 | ␊ |
861 | case FDISK_FAT32:␊ |
862 | case FDISK_DOS12:␊ |
863 | case FDISK_DOS16S:␊ |
864 | case FDISK_DOS16B:␊ |
865 | case FDISK_SMALLFAT32:␊ |
866 | case FDISK_DOS16SLBA:␊ |
867 | bvr = newFDiskBVRef(␊ |
868 | biosdev, partno,␊ |
869 | part->relsect,␊ |
870 | part,␊ |
871 | MSDOSInitPartition,␊ |
872 | MSDOSLoadFile,␊ |
873 | MSDOSReadFile,␊ |
874 | MSDOSGetDirEntry,␊ |
875 | MSDOSGetFileBlock,␊ |
876 | MSDOSGetUUID,␊ |
877 | MSDOSGetDescription,␊ |
878 | MSDOSFree,␊ |
879 | 0,␊ |
880 | kBIOSDevTypeHardDrive, 0);␊ |
881 | break;␊ |
882 | ␉␉␉␉␉␉␊ |
883 | case FDISK_NTFS:␊ |
884 | bvr = newFDiskBVRef(␊ |
885 | biosdev, partno,␊ |
886 | part->relsect,␊ |
887 | part,␊ |
888 | 0, 0, 0, 0, 0,␊ |
889 | NTFSGetUUID,␊ |
890 | NTFSGetDescription,␊ |
891 | (BVFree)free,␊ |
892 | 0, kBIOSDevTypeHardDrive, 0);␊ |
893 | break;␊ |
894 | ␊ |
895 | case FDISK_LINUX:␊ |
896 | bvr = newFDiskBVRef(␊ |
897 | biosdev, partno,␊ |
898 | part->relsect,␊ |
899 | part,␊ |
900 | 0, 0, 0, 0, 0, 0,␊ |
901 | EX2GetDescription,␊ |
902 | (BVFree)free,␊ |
903 | 0, kBIOSDevTypeHardDrive, 0);␊ |
904 | break;␊ |
905 | ␉␉␉␉␊ |
906 | case FDISK_BEFS:␊ |
907 | bvr = newFDiskBVRef(␊ |
908 | biosdev, partno,␊ |
909 | part->relsect,␊ |
910 | part,␊ |
911 | 0, 0, 0, 0, 0, 0,␊ |
912 | BeFSGetDescription,␊ |
913 | (BVFree)free,␊ |
914 | 0, kBIOSDevTypeHardDrive, 0);␊ |
915 | break;␊ |
916 | ␊ |
917 | case FDISK_FREEBSD:␊ |
918 | bvr = newFDiskBVRef(␊ |
919 | biosdev, partno,␊ |
920 | part->relsect,␊ |
921 | part,␊ |
922 | 0, 0, 0, 0, 0, 0,␊ |
923 | FreeBSDGetDescription,␊ |
924 | (BVFree)free,␊ |
925 | 0, kBIOSDevTypeHardDrive, 0);␊ |
926 | break;␊ |
927 | ␊ |
928 | case FDISK_OPENBSD:␊ |
929 | bvr = newFDiskBVRef(␊ |
930 | biosdev, partno,␊ |
931 | part->relsect,␊ |
932 | part,␊ |
933 | 0, 0, 0, 0, 0, 0,␊ |
934 | OpenBSDGetDescription,␊ |
935 | (BVFree)free,␊ |
936 | 0, kBIOSDevTypeHardDrive, 0);␊ |
937 | break;␊ |
938 | ␉␉␉␉␊ |
939 | default:␊ |
940 | bvr = newFDiskBVRef(␊ |
941 | biosdev, partno,␊ |
942 | part->relsect,␊ |
943 | part,␊ |
944 | 0, 0, 0, 0, 0, 0, 0,␊ |
945 | (BVFree)free,␊ |
946 | 0,␊ |
947 | kBIOSDevTypeHardDrive, 0);␊ |
948 | break;␊ |
949 | }␊ |
950 | ␊ |
951 | if ( bvr )␊ |
952 | {␊ |
953 | bvr->next = map->bvr;␊ |
954 | map->bvr = bvr;␊ |
955 | map->bvrcnt++;␊ |
956 | }␊ |
957 | }␊ |
958 | ␊ |
959 | #if UFS_SUPPORT␊ |
960 | // Booting from a CD with an UFS filesystem embedded␊ |
961 | // in a booter partition.␊ |
962 | ␊ |
963 | if ( booterUFS )␊ |
964 | {␊ |
965 | if ( map->bvrcnt == 0 )␊ |
966 | {␊ |
967 | map->bvr = booterUFS;␊ |
968 | map->bvrcnt++;␊ |
969 | }␊ |
970 | else free( booterUFS );␊ |
971 | }␊ |
972 | #endif␊ |
973 | }␊ |
974 | } while (0);␊ |
975 | ␊ |
976 | /*␊ |
977 | * If no FDisk partition, then we will check for␊ |
978 | * an Apple partition map elsewhere.␊ |
979 | */␊ |
980 | #if UNUSED␊ |
981 | if (map->bvrcnt == 0) {␊ |
982 | ␉static struct fdisk_part cdpart;␊ |
983 | ␉cdpart.systid = 0xCD;␊ |
984 | ␊ |
985 | ␉/* Let's try assuming we are on a hybrid HFS/ISO9660 CD. */␊ |
986 | ␉bvr = newFDiskBVRef(␊ |
987 | ␉␉␉ biosdev, 0,␊ |
988 | ␉␉␉ 0,␊ |
989 | ␉␉␉ &cdpart,␊ |
990 | ␉␉␉ HFSInitPartition,␊ |
991 | ␉␉␉ HFSLoadFile,␊ |
992 | HFSReadFile,␊ |
993 | ␉␉␉ HFSGetDirEntry,␊ |
994 | HFSGetFileBlock,␊ |
995 | HFSGetUUID,␊ |
996 | ␉␉␉ 0,␊ |
997 | ␉␉␉ kBIOSDevTypeHardDrive);␊ |
998 | ␉bvr->next = map->bvr;␊ |
999 | ␉map->bvr = bvr;␊ |
1000 | ␉map->bvrcnt++;␊ |
1001 | }␊ |
1002 | #endif␊ |
1003 | // Actually this should always be true given the above code␊ |
1004 | if(map == gDiskBVMap)␊ |
1005 | {␊ |
1006 | // Don't leave a null map in the chain␊ |
1007 | if(map->bvrcnt == 0 && map->bvr == NULL)␊ |
1008 | {␊ |
1009 | gDiskBVMap = map->next;␊ |
1010 | free(map);␊ |
1011 | map = NULL;␊ |
1012 | }␊ |
1013 | }␊ |
1014 | ␊ |
1015 | if (countPtr) *countPtr = map ? map->bvrcnt : 0;␊ |
1016 | ␊ |
1017 | return map ? map->bvr : NULL;␊ |
1018 | }␊ |
1019 | ␊ |
1020 | //==========================================================================␊ |
1021 | ␊ |
1022 | static BVRef diskScanAPMBootVolumes( int biosdev, int * countPtr )␊ |
1023 | {␊ |
1024 | struct DiskBVMap * map;␊ |
1025 | struct Block0 *block0_p;␊ |
1026 | unsigned int blksize;␊ |
1027 | unsigned int factor;␊ |
1028 | void *buffer = malloc(BPS);␊ |
1029 | ␊ |
1030 | /* Check for alternate block size */␊ |
1031 | if (readBytes( biosdev, 0, 0, BPS, buffer ) != 0) {␊ |
1032 | return NULL;␊ |
1033 | }␊ |
1034 | block0_p = buffer;␊ |
1035 | if (OSSwapBigToHostInt16(block0_p->sbSig) == BLOCK0_SIGNATURE) {␊ |
1036 | blksize = OSSwapBigToHostInt16(block0_p->sbBlkSize);␊ |
1037 | if (blksize != BPS) {␊ |
1038 | free(buffer);␊ |
1039 | buffer = malloc(blksize);␊ |
1040 | }␊ |
1041 | factor = blksize / BPS;␊ |
1042 | } else {␊ |
1043 | blksize = BPS;␊ |
1044 | factor = 1;␊ |
1045 | }␊ |
1046 | ␊ |
1047 | do {␊ |
1048 | // Create a new mapping.␊ |
1049 | ␊ |
1050 | map = (struct DiskBVMap *) malloc( sizeof(*map) );␊ |
1051 | if ( map )␊ |
1052 | {␊ |
1053 | int error;␊ |
1054 | DPME *dpme_p = (DPME *)buffer;␊ |
1055 | UInt32 i, npart = UINT_MAX;␊ |
1056 | BVRef bvr;␊ |
1057 | ␊ |
1058 | map->biosdev = biosdev;␊ |
1059 | map->bvr = NULL;␊ |
1060 | map->bvrcnt = 0;␊ |
1061 | map->next = gDiskBVMap;␊ |
1062 | gDiskBVMap = map;␊ |
1063 | ␊ |
1064 | for (i=0; i<npart; i++) {␊ |
1065 | error = readBytes( biosdev, (kAPMSector + i) * factor, 0, blksize, buffer );␊ |
1066 | ␊ |
1067 | if (error || OSSwapBigToHostInt16(dpme_p->dpme_signature) != DPME_SIGNATURE) {␊ |
1068 | break;␊ |
1069 | }␊ |
1070 | ␊ |
1071 | if (i==0) {␊ |
1072 | npart = OSSwapBigToHostInt32(dpme_p->dpme_map_entries);␊ |
1073 | }␊ |
1074 | /*␊ |
1075 | printf("name = %s, %s%s %d -> %d [%d -> %d] {%d}\n",␊ |
1076 | dpme.dpme_name, dpme.dpme_type, (dpme.dpme_flags & DPME_FLAGS_BOOTABLE) ? "(bootable)" : "",␊ |
1077 | dpme.dpme_pblock_start, dpme.dpme_pblocks,␊ |
1078 | dpme.dpme_lblock_start, dpme.dpme_lblocks,␊ |
1079 | dpme.dpme_boot_block);␊ |
1080 | */␊ |
1081 | ␊ |
1082 | if (strcmp(dpme_p->dpme_type, "Apple_HFS") == 0) {␊ |
1083 | bvr = newAPMBVRef(biosdev,␊ |
1084 | i,␊ |
1085 | OSSwapBigToHostInt32(dpme_p->dpme_pblock_start) * factor,␊ |
1086 | dpme_p,␊ |
1087 | HFSInitPartition,␊ |
1088 | HFSLoadFile,␊ |
1089 | HFSReadFile,␊ |
1090 | HFSGetDirEntry,␊ |
1091 | HFSGetFileBlock,␊ |
1092 | HFSGetUUID,␊ |
1093 | HFSGetDescription,␊ |
1094 | HFSFree,␊ |
1095 | 0,␊ |
1096 | kBIOSDevTypeHardDrive, 0);␊ |
1097 | bvr->next = map->bvr;␊ |
1098 | map->bvr = bvr;␊ |
1099 | map->bvrcnt++;␊ |
1100 | }␊ |
1101 | }␊ |
1102 | }␊ |
1103 | } while (0);␊ |
1104 | ␊ |
1105 | free(buffer);␊ |
1106 | ␊ |
1107 | if (countPtr) *countPtr = map ? map->bvrcnt : 0;␊ |
1108 | ␊ |
1109 | return map ? map->bvr : NULL;␊ |
1110 | }␊ |
1111 | ␊ |
1112 | //==========================================================================␊ |
1113 | ␊ |
1114 | // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -␊ |
1115 | ␊ |
1116 | /*␊ |
1117 | * Trying to figure out the filsystem type of a given partition.␊ |
1118 | */␊ |
1119 | static int probeFileSystem(int biosdev, unsigned int blkoff)␊ |
1120 | {␊ |
1121 | // detected filesystem type;␊ |
1122 | int result = -1;␊ |
1123 | int fatbits;␊ |
1124 | ␊ |
1125 | // Allocating buffer for 4 sectors.␊ |
1126 | const void * probeBuffer = malloc(PROBEFS_SIZE);␊ |
1127 | if (probeBuffer == NULL)␊ |
1128 | goto exit;␊ |
1129 | ␊ |
1130 | // Reading first 4 sectors of current partition␊ |
1131 | int error = readBytes(biosdev, blkoff, 0, PROBEFS_SIZE, (void *)probeBuffer);␊ |
1132 | if (error)␊ |
1133 | goto exit;␊ |
1134 | ␊ |
1135 | if (HFSProbe(probeBuffer))␊ |
1136 | result = FDISK_HFS;␊ |
1137 | else if (EX2Probe(probeBuffer))␊ |
1138 | ␉ result = FDISK_LINUX;␊ |
1139 | else if (FreeBSDProbe(probeBuffer))␊ |
1140 | ␉ result = FDISK_FREEBSD;␊ |
1141 | else if (OpenBSDProbe(probeBuffer))␊ |
1142 | ␉ result = FDISK_OPENBSD;␊ |
1143 | else if (NTFSProbe(probeBuffer))␊ |
1144 | result = FDISK_NTFS;␊ |
1145 | else if (BeFSProbe(probeBuffer))␊ |
1146 | result = FDISK_BEFS;␊ |
1147 | else if ( (fatbits = MSDOSProbe(probeBuffer)) )␊ |
1148 | {␊ |
1149 | ␉ switch (fatbits)␊ |
1150 | ␉ {␊ |
1151 | ␉␉ case 32:␊ |
1152 | ␉␉ default:␊ |
1153 | ␉␉␉ result = FDISK_FAT32;␊ |
1154 | ␉␉␉ break;␊ |
1155 | ␉␉ case 16:␊ |
1156 | ␉␉␉ result = FDISK_DOS16B;␊ |
1157 | ␉␉␉ break;␊ |
1158 | ␉␉ case 12:␊ |
1159 | ␉␉␉ result = FDISK_DOS12;␊ |
1160 | ␉␉␉ break;␉␉␉ ␊ |
1161 | ␉ }␊ |
1162 | }␊ |
1163 | else␊ |
1164 | // Couldn't detect filesystem type␊ |
1165 | result = 0;␊ |
1166 | ␊ |
1167 | exit:␊ |
1168 | if (probeBuffer != NULL) free((void *)probeBuffer);␊ |
1169 | return result;␊ |
1170 | }␊ |
1171 | ␊ |
1172 | static bool isPartitionUsed(gpt_ent * partition)␊ |
1173 | {␊ |
1174 | //␊ |
1175 | // Ask whether the given partition is used.␊ |
1176 | //␊ |
1177 | ␊ |
1178 | return efi_guid_is_null((EFI_GUID const*)partition->ent_type) ? false : true;␊ |
1179 | }␊ |
1180 | ␊ |
1181 | // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -␊ |
1182 | ␊ |
1183 | static BVRef diskScanGPTBootVolumes( int biosdev, int * countPtr )␊ |
1184 | {␊ |
1185 | struct DiskBVMap * map = NULL;␊ |
1186 | void *buffer = malloc(BPS);␊ |
1187 | int error;␊ |
1188 | if ( (error = readBytes( biosdev, /*secno*/0, 0, BPS, buffer )) != 0) {␊ |
1189 | verbose("Failed to read boot sector from BIOS device %02xh. Error=%d\n", biosdev, error);␊ |
1190 | goto scanErr;␊ |
1191 | }␊ |
1192 | struct REAL_disk_blk0 *fdiskMap = buffer;␊ |
1193 | if ( OSSwapLittleToHostInt16(fdiskMap->signature) != DISK_SIGNATURE )␊ |
1194 | {␊ |
1195 | verbose("Failed to find boot signature on BIOS device %02xh\n", biosdev);␊ |
1196 | goto scanErr;␊ |
1197 | }␊ |
1198 | ␊ |
1199 | int fdiskID = 0;␊ |
1200 | unsigned index;␊ |
1201 | for ( index = 0; index < FDISK_NPART; index++ )␊ |
1202 | {␊ |
1203 | if ( fdiskMap->parts[index].systid )␊ |
1204 | {␊ |
1205 | if ( fdiskMap->parts[index].systid == 0xEE )␊ |
1206 | {␊ |
1207 | // Fail if two 0xEE partitions are present which␊ |
1208 | // means the FDISK code will wind up parsing it.␊ |
1209 | if ( fdiskID ) goto scanErr;␊ |
1210 | ␊ |
1211 | fdiskID = index + 1;␊ |
1212 | }␊ |
1213 | }␊ |
1214 | }␊ |
1215 | ␊ |
1216 | if ( fdiskID == 0 ) goto scanErr;␊ |
1217 | verbose("Attempting to read GPT\n");␊ |
1218 | ␊ |
1219 | if(readBytes(biosdev, 1, 0, BPS, buffer) != 0)␊ |
1220 | goto scanErr;␊ |
1221 | ␊ |
1222 | gpt_hdr *headerMap = buffer;␊ |
1223 | ␊ |
1224 | // Determine whether the partition header signature is present.␊ |
1225 | ␊ |
1226 | if ( memcmp(headerMap->hdr_sig, GPT_HDR_SIG, strlen(GPT_HDR_SIG)) )␊ |
1227 | {␊ |
1228 | goto scanErr;␊ |
1229 | }␊ |
1230 | ␊ |
1231 | // Determine whether the partition header size is valid.␊ |
1232 | ␊ |
1233 | UInt32 headerCheck = OSSwapLittleToHostInt32(headerMap->hdr_crc_self);␊ |
1234 | UInt32 headerSize = OSSwapLittleToHostInt32(headerMap->hdr_size);␊ |
1235 | ␊ |
1236 | if ( headerSize < offsetof(gpt_hdr, padding) )␊ |
1237 | {␊ |
1238 | goto scanErr;␊ |
1239 | }␊ |
1240 | ␊ |
1241 | if ( headerSize > BPS )␊ |
1242 | {␊ |
1243 | goto scanErr;␊ |
1244 | }␊ |
1245 | ␊ |
1246 | // Determine whether the partition header checksum is valid.␊ |
1247 | ␊ |
1248 | headerMap->hdr_crc_self = 0;␊ |
1249 | ␊ |
1250 | if ( crc32(0, headerMap, headerSize) != headerCheck )␊ |
1251 | {␊ |
1252 | goto scanErr;␊ |
1253 | }␊ |
1254 | ␊ |
1255 | // Determine whether the partition entry size is valid.␊ |
1256 | ␊ |
1257 | UInt64 gptBlock = 0;␊ |
1258 | UInt32 gptCheck = 0;␊ |
1259 | UInt32 gptCount = 0;␊ |
1260 | UInt32 gptID = 0;␊ |
1261 | gpt_ent * gptMap = 0;␊ |
1262 | UInt32 gptSize = 0;␊ |
1263 | ␊ |
1264 | gptBlock = OSSwapLittleToHostInt64(headerMap->hdr_lba_table);␊ |
1265 | gptCheck = OSSwapLittleToHostInt32(headerMap->hdr_crc_table);␊ |
1266 | gptCount = OSSwapLittleToHostInt32(headerMap->hdr_entries);␊ |
1267 | gptSize = OSSwapLittleToHostInt32(headerMap->hdr_entsz);␊ |
1268 | ␊ |
1269 | if ( gptSize < sizeof(gpt_ent) )␊ |
1270 | {␊ |
1271 | goto scanErr;␊ |
1272 | }␊ |
1273 | ␊ |
1274 | // Allocate a buffer large enough to hold one map, rounded to a media block.␊ |
1275 | free(buffer);␊ |
1276 | buffer = NULL;␊ |
1277 | ␊ |
1278 | UInt32 bufferSize = IORound(gptCount * gptSize, BPS);␊ |
1279 | if(bufferSize == 0)␊ |
1280 | goto scanErr;␊ |
1281 | buffer = malloc(bufferSize);␊ |
1282 | ␊ |
1283 | if(readBytes(biosdev, gptBlock, 0, bufferSize, buffer) != 0)␊ |
1284 | goto scanErr;␊ |
1285 | ␊ |
1286 | verbose("Read GPT\n");␊ |
1287 | ␊ |
1288 | // Allocate a new map for this BIOS device and insert it into the chain␊ |
1289 | map = malloc(sizeof(*map));␊ |
1290 | map->biosdev = biosdev;␊ |
1291 | map->bvr = NULL;␊ |
1292 | map->bvrcnt = 0;␊ |
1293 | map->next = gDiskBVMap;␊ |
1294 | gDiskBVMap = map;␊ |
1295 | ␊ |
1296 | // fdisk like partition type id.␊ |
1297 | int fsType = 0;␊ |
1298 | ␊ |
1299 | for(gptID = 1; gptID <= gptCount; ++gptID)␊ |
1300 | {␊ |
1301 | ␉␉␉␉BVRef bvr = NULL;␊ |
1302 | ␉␉␉␉unsigned int bvrFlags = 0;␊ |
1303 | ␊ |
1304 | // size on disk can be larger than sizeof(gpt_ent)␊ |
1305 | gptMap = (gpt_ent *) ( buffer + ( (gptID - 1) * gptSize) );␊ |
1306 | ␊ |
1307 | // NOTE: EFI_GUID's are in LE and we know we're on an x86.␊ |
1308 | // The IOGUIDPartitionScheme.cpp code uses byte-based UUIDs, we don't.␊ |
1309 | ␊ |
1310 | if (isPartitionUsed(gptMap))␊ |
1311 | {␊ |
1312 | char stringuuid[100];␊ |
1313 | efi_guid_unparse_upper((EFI_GUID*)gptMap->ent_type, stringuuid);␊ |
1314 | verbose("Reading GPT partition %d, type %s\n", gptID, stringuuid);␊ |
1315 | ␊ |
1316 | // Getting fdisk like partition type.␊ |
1317 | fsType = probeFileSystem(biosdev, gptMap->ent_lba_start);␊ |
1318 | ␊ |
1319 | if ( (efi_guid_compare(&GPT_BOOT_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) ||␊ |
1320 | (efi_guid_compare(&GPT_HFS_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) )␊ |
1321 | {␊ |
1322 | bvrFlags = (efi_guid_compare(&GPT_BOOT_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) ? kBVFlagBooter : 0;␊ |
1323 | bvr = newGPTBVRef(biosdev,␊ |
1324 | gptID,␊ |
1325 | gptMap->ent_lba_start,␊ |
1326 | gptMap,␊ |
1327 | HFSInitPartition,␊ |
1328 | HFSLoadFile,␊ |
1329 | HFSReadFile,␊ |
1330 | HFSGetDirEntry,␊ |
1331 | HFSGetFileBlock,␊ |
1332 | HFSGetUUID,␊ |
1333 | HFSGetDescription,␊ |
1334 | HFSFree,␊ |
1335 | 0,␊ |
1336 | kBIOSDevTypeHardDrive, bvrFlags);␊ |
1337 | }␊ |
1338 | ␊ |
1339 | ␉␉␉// zef - foreign OS support␊ |
1340 | if ( (efi_guid_compare(&GPT_BASICDATA_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) ||␊ |
1341 | (efi_guid_compare(&GPT_BASICDATA2_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) )␊ |
1342 | {␊ |
1343 | ␉␉␉␉␉␉␉switch (fsType)␊ |
1344 | {␊ |
1345 | ␉␉␉␉␉␉␉ case FDISK_NTFS:␊ |
1346 | ␉␉␉␉␉␉␉ bvr = newGPTBVRef(biosdev, gptID, gptMap->ent_lba_start, gptMap,␊ |
1347 | ␉ ␉␉␉␉␉␉␉␉0, 0, 0, 0, 0, 0, NTFSGetDescription,␊ |
1348 | ␉␉ ␉␉␉␉␉␉␉(BVFree)free, 0, kBIOSDevTypeHardDrive, 0);␊ |
1349 | ␉␉␉␉␉␉␉␉break;␊ |
1350 | ␊ |
1351 | default:␊ |
1352 | bvr = newGPTBVRef(biosdev, gptID, gptMap->ent_lba_start, gptMap,␊ |
1353 | 0, 0, 0, 0, 0, 0, 0,␊ |
1354 | (BVFree)free, 0, kBIOSDevTypeHardDrive, 0);␊ |
1355 | break;␊ |
1356 | }␊ |
1357 | ␉␉␉␉␉␉␉ ␊ |
1358 | }␊ |
1359 | ␊ |
1360 | // turbo - save our booter partition␊ |
1361 | // zef - only on original boot device␊ |
1362 | if ( (efi_guid_compare(&GPT_EFISYS_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) )␊ |
1363 | {␊ |
1364 | ␉␉␉␉␉␉␉switch (fsType)␊ |
1365 | {␊ |
1366 | case FDISK_HFS:␊ |
1367 | if (readBootSector( biosdev, gptMap->ent_lba_start, (void *)0x7e00 ) == 0)␊ |
1368 | {␊ |
1369 | bvr = newGPTBVRef(biosdev, gptID, gptMap->ent_lba_start, gptMap,␊ |
1370 | HFSInitPartition,␊ |
1371 | HFSLoadFile,␊ |
1372 | HFSReadFile,␊ |
1373 | HFSGetDirEntry,␊ |
1374 | HFSGetFileBlock,␊ |
1375 | HFSGetUUID,␊ |
1376 | HFSGetDescription,␊ |
1377 | HFSFree,␊ |
1378 | 0, kBIOSDevTypeHardDrive, kBVFlagEFISystem);␊ |
1379 | }␊ |
1380 | break;␊ |
1381 | ␊ |
1382 | case FDISK_FAT32:␊ |
1383 | if (testFAT32EFIBootSector( biosdev, gptMap->ent_lba_start, (void *)0x7e00 ) == 0)␊ |
1384 | {␊ |
1385 | bvr = newGPTBVRef(biosdev, gptID, gptMap->ent_lba_start, gptMap,␊ |
1386 | MSDOSInitPartition,␊ |
1387 | MSDOSLoadFile,␊ |
1388 | MSDOSReadFile,␊ |
1389 | MSDOSGetDirEntry,␊ |
1390 | MSDOSGetFileBlock,␊ |
1391 | MSDOSGetUUID,␊ |
1392 | MSDOSGetDescription,␊ |
1393 | MSDOSFree,␊ |
1394 | 0, kBIOSDevTypeHardDrive, kBVFlagEFISystem);␊ |
1395 | }␊ |
1396 | break;␊ |
1397 | ␊ |
1398 | if (biosdev == gBIOSDev)␊ |
1399 | gBIOSBootVolume = bvr;␊ |
1400 | }␊ |
1401 | } ␊ |
1402 | ␊ |
1403 | ␉␉␉␉␉␉if (bvr)␊ |
1404 | ␉␉␉␉␉␉{␊ |
1405 | // Fixup bvr with the fake fdisk partition type.␊ |
1406 | if (fsType > 0) bvr->part_type = fsType;␊ |
1407 | ␊ |
1408 | ␉␉␉␉␉␉␉bvr->next = map->bvr;␊ |
1409 | ␉␉␉␉␉␉␉map->bvr = bvr;␊ |
1410 | ␉␉␉␉␉␉␉++map->bvrcnt;␊ |
1411 | ␉␉␉␉␉␉}␊ |
1412 | ␊ |
1413 | }␊ |
1414 | }␊ |
1415 | ␊ |
1416 | scanErr:␊ |
1417 | free(buffer);␊ |
1418 | ␊ |
1419 | if(map)␊ |
1420 | {␊ |
1421 | if(countPtr) *countPtr = map->bvrcnt;␊ |
1422 | return map->bvr;␊ |
1423 | }␊ |
1424 | else␊ |
1425 | {␊ |
1426 | if(countPtr) *countPtr = 0;␊ |
1427 | return NULL;␊ |
1428 | }␊ |
1429 | }␊ |
1430 | ␊ |
1431 | static bool getOSVersion(BVRef bvr, char *str)␊ |
1432 | {␊ |
1433 | ␉bool valid = false;␉␊ |
1434 | ␉config_file_t systemVersion;␊ |
1435 | ␉char dirSpec[512];␉␊ |
1436 | ␉␊ |
1437 | ␉sprintf(dirSpec, "hd(%d,%d)/System/Library/CoreServices/SystemVersion.plist", BIOS_DEV_UNIT(bvr), bvr->part_no);␊ |
1438 | ␉␊ |
1439 | ␉if (!loadConfigFile(dirSpec, &systemVersion))␊ |
1440 | ␉{␊ |
1441 | ␉␉valid = true;␊ |
1442 | ␉}␊ |
1443 | ␉else ␊ |
1444 | ␉{␊ |
1445 | ␉␉sprintf(dirSpec, "hd(%d,%d)/System/Library/CoreServices/ServerVersion.plist", BIOS_DEV_UNIT(bvr), bvr->part_no);␊ |
1446 | ␉␉␊ |
1447 | ␉␉if (!loadConfigFile(dirSpec, &systemVersion))␊ |
1448 | ␉␉{␉␊ |
1449 | bvr->OSisServer = true;␊ |
1450 | ␉␉␉valid = true;␊ |
1451 | ␉␉}␉␉␊ |
1452 | ␉}␊ |
1453 | ␉␊ |
1454 | ␉if (valid)␊ |
1455 | ␉{␉␉␊ |
1456 | ␉␉const char *val;␊ |
1457 | ␉␉int len;␊ |
1458 | ␉␉␊ |
1459 | ␉␉if (getValueForKey(kProductVersion, &val, &len, &systemVersion))␊ |
1460 | ␉␉{␊ |
1461 | ␉␉␉// getValueForKey uses const char for val␊ |
1462 | ␉␉␉// so copy it and trim␊ |
1463 | ␉␉␉*str = '\0';␊ |
1464 | ␉␉␉strncat(str, val, MIN(len, 4));␊ |
1465 | ␉␉}␊ |
1466 | ␉␉else␊ |
1467 | ␉␉␉valid = false;␊ |
1468 | ␉}␊ |
1469 | ␉␊ |
1470 | ␉return valid;␊ |
1471 | }␊ |
1472 | ␊ |
1473 | //==========================================================================␊ |
1474 | ␊ |
1475 | static void scanFSLevelBVRSettings(BVRef chain)␊ |
1476 | {␊ |
1477 | BVRef bvr;␊ |
1478 | char dirSpec[512], fileSpec[512];␊ |
1479 | char label[BVSTRLEN];␊ |
1480 | int ret;␊ |
1481 | long flags, time;␊ |
1482 | int fh, fileSize, error;␊ |
1483 | ␊ |
1484 | for (bvr = chain; bvr; bvr = bvr->next)␊ |
1485 | {␊ |
1486 | ret = -1;␊ |
1487 | error = 0;␊ |
1488 | ␊ |
1489 | //␊ |
1490 | // Check for alternate volume label on boot helper partitions.␊ |
1491 | //␊ |
1492 | if (bvr->flags & kBVFlagBooter)␊ |
1493 | {␊ |
1494 | sprintf(dirSpec, "hd(%d,%d)/System/Library/CoreServices/", BIOS_DEV_UNIT(bvr), bvr->part_no);␊ |
1495 | strcpy(fileSpec, ".disk_label.contentDetails");␊ |
1496 | ret = GetFileInfo(dirSpec, fileSpec, &flags, &time);␊ |
1497 | if (!ret)␊ |
1498 | {␊ |
1499 | fh = open(strcat(dirSpec, fileSpec), 0);␊ |
1500 | fileSize = file_size(fh);␊ |
1501 | if (fileSize > 0 && fileSize < BVSTRLEN)␊ |
1502 | {␊ |
1503 | if (read(fh, label, fileSize) != fileSize)␊ |
1504 | error = -1;␊ |
1505 | }␊ |
1506 | else␊ |
1507 | error = -1;␊ |
1508 | ␊ |
1509 | close(fh);␊ |
1510 | ␊ |
1511 | if (!error)␊ |
1512 | {␊ |
1513 | label[fileSize] = '\0';␊ |
1514 | strcpy(bvr->altlabel, label);␊ |
1515 | }␊ |
1516 | }␊ |
1517 | }␊ |
1518 | ␊ |
1519 | //␊ |
1520 | // Check for SystemVersion.plist or ServerVersion.plist␊ |
1521 | // to determine if a volume hosts an installed system.␊ |
1522 | //␊ |
1523 | if (bvr->flags & kBVFlagNativeBoot)␊ |
1524 | {␊ |
1525 | if (getOSVersion(bvr,bvr->OSVersion) == true)␊ |
1526 | {␊ |
1527 | bvr->flags |= kBVFlagSystemVolume;␊ |
1528 | }␊ |
1529 | }␊ |
1530 | ␊ |
1531 | }␊ |
1532 | }␊ |
1533 | ␊ |
1534 | void rescanBIOSDevice(int biosdev)␊ |
1535 | {␊ |
1536 | ␉struct DiskBVMap *oldMap = diskResetBootVolumes(biosdev);␊ |
1537 | ␉CacheReset();␊ |
1538 | ␉diskFreeMap(oldMap);␊ |
1539 | ␉oldMap = NULL;␊ |
1540 | ␉scanBootVolumes(biosdev, 0);␊ |
1541 | }␊ |
1542 | ␊ |
1543 | struct DiskBVMap* diskResetBootVolumes(int biosdev)␊ |
1544 | {␊ |
1545 | struct DiskBVMap * map;␊ |
1546 | struct DiskBVMap *prevMap = NULL;␊ |
1547 | for ( map = gDiskBVMap; map; prevMap = map, map = map->next ) {␊ |
1548 | if ( biosdev == map->biosdev ) {␊ |
1549 | break;␊ |
1550 | }␊ |
1551 | }␊ |
1552 | if(map != NULL)␊ |
1553 | {␊ |
1554 | verbose("Resetting BIOS device %xh\n", biosdev);␊ |
1555 | // Reset the biosbuf cache␊ |
1556 | cache_valid = false;␊ |
1557 | if(map == gDiskBVMap)␊ |
1558 | gDiskBVMap = map->next;␊ |
1559 | else if(prevMap != NULL)␊ |
1560 | prevMap->next = map->next;␊ |
1561 | else␊ |
1562 | stop("");␊ |
1563 | }␊ |
1564 | // Return the old map, either to be freed, or reinserted later␊ |
1565 | return map;␊ |
1566 | }␊ |
1567 | ␊ |
1568 | // Frees a DiskBVMap and all of its BootVolume's␊ |
1569 | void diskFreeMap(struct DiskBVMap *map)␊ |
1570 | {␊ |
1571 | if(map != NULL)␊ |
1572 | {␊ |
1573 | while(map->bvr != NULL)␊ |
1574 | {␊ |
1575 | BVRef bvr = map->bvr;␊ |
1576 | map->bvr = bvr->next;␊ |
1577 | (*bvr->bv_free)(bvr);␊ |
1578 | }␊ |
1579 | free(map);␊ |
1580 | }␊ |
1581 | }␊ |
1582 | ␊ |
1583 | BVRef diskScanBootVolumes( int biosdev, int * countPtr )␊ |
1584 | {␊ |
1585 | struct DiskBVMap * map;␊ |
1586 | BVRef bvr;␊ |
1587 | int count = 0;␊ |
1588 | ␊ |
1589 | // Find an existing mapping for this device.␊ |
1590 | ␊ |
1591 | for ( map = gDiskBVMap; map; map = map->next ) {␊ |
1592 | if ( biosdev == map->biosdev ) {␊ |
1593 | count = map->bvrcnt;␊ |
1594 | break;␊ |
1595 | }␊ |
1596 | }␊ |
1597 | ␊ |
1598 | if (map == NULL) {␊ |
1599 | bvr = diskScanGPTBootVolumes(biosdev, &count);␊ |
1600 | if (bvr == NULL) {␊ |
1601 | bvr = diskScanFDiskBootVolumes(biosdev, &count);␊ |
1602 | }␊ |
1603 | if (bvr == NULL) {␊ |
1604 | bvr = diskScanAPMBootVolumes(biosdev, &count);␊ |
1605 | }␊ |
1606 | if (bvr)␊ |
1607 | {␊ |
1608 | scanFSLevelBVRSettings(bvr);␊ |
1609 | }␊ |
1610 | } else {␊ |
1611 | bvr = map->bvr;␊ |
1612 | }␊ |
1613 | if (countPtr) *countPtr += count;␊ |
1614 | return bvr;␊ |
1615 | }␊ |
1616 | ␊ |
1617 | BVRef getBVChainForBIOSDev(int biosdev)␊ |
1618 | {␊ |
1619 | BVRef chain = NULL;␊ |
1620 | struct DiskBVMap * map = NULL;␊ |
1621 | ␊ |
1622 | for (map = gDiskBVMap; map; map = map->next)␊ |
1623 | {␊ |
1624 | if (map->biosdev == biosdev)␊ |
1625 | {␊ |
1626 | chain = map->bvr;␊ |
1627 | break;␊ |
1628 | }␊ |
1629 | }␊ |
1630 | ␊ |
1631 | return chain;␊ |
1632 | }␊ |
1633 | ␊ |
1634 | BVRef newFilteredBVChain(int minBIOSDev, int maxBIOSDev, unsigned int allowFlags, unsigned int denyFlags, int *count)␊ |
1635 | {␊ |
1636 | BVRef chain = NULL;␊ |
1637 | BVRef bvr = NULL;␊ |
1638 | BVRef newBVR = NULL;␊ |
1639 | BVRef prevBVR = NULL;␊ |
1640 | ␊ |
1641 | struct DiskBVMap * map = NULL;␊ |
1642 | int bvCount = 0;␊ |
1643 | ␊ |
1644 | const char *raw = 0;␊ |
1645 | char* val = 0;␊ |
1646 | int len;␊ |
1647 | ␊ |
1648 | getValueForKey(kHidePartition, &raw, &len, &bootInfo->chameleonConfig);␊ |
1649 | if(raw)␊ |
1650 | {␊ |
1651 | val = XMLDecode(raw); ␊ |
1652 | }␊ |
1653 | ␊ |
1654 | /*␊ |
1655 | * Traverse gDISKBVmap to get references for␊ |
1656 | * individual bvr chains of each drive.␊ |
1657 | */␊ |
1658 | for (map = gDiskBVMap; map; map = map->next)␊ |
1659 | {␊ |
1660 | for (bvr = map->bvr; bvr; bvr = bvr->next)␊ |
1661 | {␊ |
1662 | /*␊ |
1663 | * Save the last bvr.␊ |
1664 | */␊ |
1665 | if (newBVR) prevBVR = newBVR;␊ |
1666 | ␊ |
1667 | /*␊ |
1668 | * Allocate and copy the matched bvr entry into a new one.␊ |
1669 | */␊ |
1670 | newBVR = (BVRef) malloc(sizeof(*newBVR));␊ |
1671 | bcopy(bvr, newBVR, sizeof(*newBVR));␊ |
1672 | ␊ |
1673 | /*␊ |
1674 | * Adjust the new bvr's fields.␊ |
1675 | */␊ |
1676 | newBVR->next = NULL;␊ |
1677 | newBVR->filtered = true;␊ |
1678 | ␊ |
1679 | if ( (!allowFlags || newBVR->flags & allowFlags)␊ |
1680 | && (!denyFlags || !(newBVR->flags & denyFlags) )␊ |
1681 | && (newBVR->biosdev >= minBIOSDev && newBVR->biosdev <= maxBIOSDev)␊ |
1682 | )␊ |
1683 | newBVR->visible = true;␊ |
1684 | ␊ |
1685 | /*␊ |
1686 | * Looking for "Hide Partition" entries in 'hd(x,y)|uuid|"label" hd(m,n)|uuid|"label"' format,␊ |
1687 | * to be able to hide foreign partitions from the boot menu.␊ |
1688 | *␊ |
1689 | */␊ |
1690 | if ( (newBVR->flags & kBVFlagForeignBoot) )␊ |
1691 | {␊ |
1692 | char *start, *next = val;␊ |
1693 | long len = 0; ␊ |
1694 | do␊ |
1695 | {␊ |
1696 | start = strbreak(next, &next, &len);␊ |
1697 | if(len && matchVolumeToString(newBVR, start, len) )␊ |
1698 | ␉ newBVR->visible = false;␊ |
1699 | }␊ |
1700 | while ( next && *next );␊ |
1701 | }␊ |
1702 | ␊ |
1703 | /*␊ |
1704 | * Use the first bvr entry as the starting chain pointer.␊ |
1705 | */␊ |
1706 | if (!chain)␊ |
1707 | chain = newBVR;␊ |
1708 | ␊ |
1709 | /*␊ |
1710 | * Update the previous bvr's link pointer to use the new memory area.␊ |
1711 | */␊ |
1712 | if (prevBVR)␊ |
1713 | prevBVR->next = newBVR;␊ |
1714 | ␊ |
1715 | if (newBVR->visible)␊ |
1716 | bvCount++;␊ |
1717 | }␊ |
1718 | }␊ |
1719 | ␊ |
1720 | #if DEBUG //Azi: warning - too big for boot-log.. far too big.. i mean HUGE!! :P␊ |
1721 | for (bvr = chain; bvr; bvr = bvr->next)␊ |
1722 | {␊ |
1723 | printf(" bvr: %d, dev: %d, part: %d, flags: %d, vis: %d\n", bvr, bvr->biosdev, bvr->part_no, bvr->flags, bvr->visible);␊ |
1724 | }␊ |
1725 | printf("count: %d\n", bvCount);␊ |
1726 | getchar();␊ |
1727 | #endif␊ |
1728 | ␊ |
1729 | *count = bvCount;␊ |
1730 | ␊ |
1731 | free(val); ␊ |
1732 | return chain;␊ |
1733 | }␊ |
1734 | ␊ |
1735 | int freeFilteredBVChain(const BVRef chain)␊ |
1736 | {␊ |
1737 | int ret = 1;␊ |
1738 | BVRef bvr = chain;␊ |
1739 | BVRef nextBVR = NULL;␊ |
1740 | ␊ |
1741 | while (bvr)␊ |
1742 | {␊ |
1743 | nextBVR = bvr->next;␊ |
1744 | ␊ |
1745 | if (bvr->filtered)␊ |
1746 | {␊ |
1747 | free(bvr);␊ |
1748 | }␊ |
1749 | else␊ |
1750 | {␊ |
1751 | ret = 0;␊ |
1752 | break;␊ |
1753 | }␊ |
1754 | ␊ |
1755 | bvr = nextBVR;␊ |
1756 | }␊ |
1757 | ␊ |
1758 | return ret;␊ |
1759 | }␊ |
1760 | ␊ |
1761 | //==========================================================================␊ |
1762 | ␊ |
1763 | static const struct NamedValue fdiskTypes[] =␊ |
1764 | {␊ |
1765 | ␉{ FDISK_NTFS,␉␉"Windows NTFS" },␊ |
1766 | ␉{ FDISK_DOS12,␉␉"Windows FAT12" },␊ |
1767 | ␉{ FDISK_DOS16B,␉␉"Windows FAT16" },␊ |
1768 | ␉{ FDISK_DOS16S,␉␉"Windows FAT16" },␊ |
1769 | ␉{ FDISK_DOS16SLBA,␉"Windows FAT16" },␊ |
1770 | ␉{ FDISK_SMALLFAT32,␉"Windows FAT32" },␊ |
1771 | ␉{ FDISK_FAT32,␉␉"Windows FAT32" },␊ |
1772 | ␉{ FDISK_FREEBSD,␉"FreeBSD" },␊ |
1773 | ␉{ FDISK_OPENBSD,␉"OpenBSD" },␊ |
1774 | ␉{ FDISK_LINUX,␉␉"Linux" },␊ |
1775 | ␉{ FDISK_UFS,␉␉"Apple UFS" },␊ |
1776 | ␉{ FDISK_HFS,␉␉"Apple HFS" },␊ |
1777 | ␉{ FDISK_BOOTER,␉␉"Apple Boot/UFS" },␊ |
1778 | ␉{ FDISK_BEFS,␉␉"Haiku" },␊ |
1779 | ␉{ 0xCD,␉␉␉"CD-ROM" },␊ |
1780 | ␉{ 0x00,␉␉␉0 } /* must be last */␊ |
1781 | };␊ |
1782 | ␊ |
1783 | //==========================================================================␊ |
1784 | ␊ |
1785 | bool matchVolumeToString( BVRef bvr, const char* match, long matchLen)␊ |
1786 | {␊ |
1787 | ␉char testStr[128];␊ |
1788 | ␊ |
1789 | ␉if ( !bvr || !match || !*match)␊ |
1790 | ␉␉return 0;␊ |
1791 | ␉␊ |
1792 | ␉if ( bvr->biosdev < 0x80 || bvr->biosdev >= 0x100 )␊ |
1793 | return 0;␊ |
1794 | ␊ |
1795 | // Try to match hd(x,y) first.␊ |
1796 | sprintf(testStr, "hd(%d,%d)", BIOS_DEV_UNIT(bvr), bvr->part_no);␊ |
1797 | if ( matchLen ? !strncmp(match, testStr, matchLen) : !strcmp(match, testStr) )␊ |
1798 | return true;␊ |
1799 | ␊ |
1800 | // Try to match volume UUID.␊ |
1801 | if ( bvr->fs_getuuid && bvr->fs_getuuid(bvr, testStr) == 0)␊ |
1802 | {␊ |
1803 | if( matchLen ? !strncmp(match, testStr, matchLen) : !strcmp(match, testStr) )␊ |
1804 | return true;␊ |
1805 | }␊ |
1806 | ␊ |
1807 | // Try to match volume label (always quoted).␊ |
1808 | if ( bvr->description )␊ |
1809 | {␊ |
1810 | bvr->description(bvr, testStr, sizeof(testStr)-1);␊ |
1811 | if( matchLen ? !strncmp(match, testStr, matchLen) : !strcmp(match, testStr) )␊ |
1812 | return true;␊ |
1813 | }␊ |
1814 | ␊ |
1815 | return false;␊ |
1816 | }␊ |
1817 | ␊ |
1818 | /* If Rename Partition has defined an alias, then extract it for description purpose.␊ |
1819 | * The format for the rename string is the following:␊ |
1820 | * hd(x,y)|uuid|"label" "alias";hd(m,n)|uuid|"label" "alias"; etc...␊ |
1821 | */␊ |
1822 | ␊ |
1823 | bool getVolumeLabelAlias(BVRef bvr, char* str, long strMaxLen)␊ |
1824 | {␊ |
1825 | char *aliasList, *entryStart, *entryNext;␊ |
1826 | ␊ |
1827 | if ( !str || strMaxLen <= 0)␊ |
1828 | return false;␊ |
1829 | ␊ |
1830 | aliasList = XMLDecode(getStringForKey(kRenamePartition, &bootInfo->chameleonConfig));␊ |
1831 | if ( !aliasList )␊ |
1832 | return false;␊ |
1833 | ␊ |
1834 | for ( entryStart = entryNext = aliasList;␊ |
1835 | entryNext && *entryNext;␊ |
1836 | entryStart = entryNext )␊ |
1837 | {␊ |
1838 | char *volStart, *volEnd, *aliasStart;␊ |
1839 | long volLen, aliasLen;␊ |
1840 | ␊ |
1841 | // Delimit current entry␊ |
1842 | entryNext = strchr(entryStart, ';');␊ |
1843 | if ( entryNext )␊ |
1844 | {␊ |
1845 | *entryNext = '\0';␊ |
1846 | entryNext++;␊ |
1847 | }␊ |
1848 | ␊ |
1849 | volStart = strbreak(entryStart, &volEnd, &volLen);␊ |
1850 | if(!volLen)␊ |
1851 | continue;␊ |
1852 | ␊ |
1853 | aliasStart = strbreak(volEnd, 0, &aliasLen);␊ |
1854 | if(!aliasLen)␊ |
1855 | continue;␊ |
1856 | ␊ |
1857 | if ( matchVolumeToString(bvr, volStart, volLen) )␊ |
1858 | { ␊ |
1859 | strncat(str, aliasStart, MIN(strMaxLen, aliasLen));␊ |
1860 | free(aliasList);␊ |
1861 | ␊ |
1862 | return true;␊ |
1863 | }␊ |
1864 | }␊ |
1865 | ␊ |
1866 | free(aliasList);␊ |
1867 | return false;␊ |
1868 | }␊ |
1869 | ␊ |
1870 | void getBootVolumeDescription( BVRef bvr, char * str, long strMaxLen, bool useDeviceDescription )␊ |
1871 | {␊ |
1872 | unsigned char type;␊ |
1873 | char *p = str;␊ |
1874 | ␊ |
1875 | if(!bvr || !p || strMaxLen <= 0)␊ |
1876 | return;␊ |
1877 | ␊ |
1878 | type = (unsigned char) bvr->part_type;␊ |
1879 | ␉␊ |
1880 | if (useDeviceDescription)␊ |
1881 | {␊ |
1882 | int len = getDeviceDescription(bvr, str);␊ |
1883 | if(len >= strMaxLen)␊ |
1884 | return;␊ |
1885 | ␊ |
1886 | strcpy(str + len, " ");␊ |
1887 | len++;␊ |
1888 | strMaxLen -= len;␊ |
1889 | p += len;␊ |
1890 | }␊ |
1891 | ␉␊ |
1892 | /* See if a partition rename is preferred */␊ |
1893 | if(getVolumeLabelAlias(bvr, p, strMaxLen)) {␊ |
1894 | strncpy(bvr->label, p, strMaxLen); ␊ |
1895 | return; // we're done here no need to seek for real name␊ |
1896 | }␊ |
1897 | ␊ |
1898 | //␊ |
1899 | // Get the volume label using filesystem specific functions␊ |
1900 | // or use the alternate volume label if available.␊ |
1901 | //␊ |
1902 | ␉if (*bvr->altlabel != '\0')␊ |
1903 | strncpy(p, bvr->altlabel, strMaxLen);␊ |
1904 | ␉else if (bvr->description)␊ |
1905 | bvr->description(bvr, p, strMaxLen);␊ |
1906 | ␊ |
1907 | if (*p == '\0') {␊ |
1908 | const char * name = getNameForValue( fdiskTypes, type );␊ |
1909 | if (name == NULL) {␊ |
1910 | name = bvr->type_name;␊ |
1911 | }␊ |
1912 | if (name == NULL) {␊ |
1913 | sprintf(p, "TYPE %02x", type);␊ |
1914 | } else {␊ |
1915 | strncpy(p, name, strMaxLen);␊ |
1916 | }␊ |
1917 | }␊ |
1918 | ␊ |
1919 | // Set the devices label␊ |
1920 | sprintf(bvr->label, p);␊ |
1921 | }␊ |
1922 | ␊ |
1923 | //==========================================================================␊ |
1924 | int readBootSector( int biosdev, unsigned int secno, void * buffer )␊ |
1925 | {␊ |
1926 | struct disk_blk0 * bootSector = (struct disk_blk0 *) buffer;␊ |
1927 | int error;␊ |
1928 | ␊ |
1929 | if ( bootSector == NULL )␊ |
1930 | {␊ |
1931 | if ( gBootSector == NULL )␊ |
1932 | {␊ |
1933 | gBootSector = (struct disk_blk0 *) malloc(sizeof(*gBootSector));␊ |
1934 | if ( gBootSector == NULL ) return -1;␊ |
1935 | }␊ |
1936 | bootSector = gBootSector;␊ |
1937 | }␊ |
1938 | ␊ |
1939 | error = readBytes( biosdev, secno, 0, BPS, bootSector );␊ |
1940 | if ( error || bootSector->signature != DISK_SIGNATURE )␊ |
1941 | return -1;␊ |
1942 | ␊ |
1943 | return 0;␊ |
1944 | }␊ |
1945 | ␊ |
1946 | /*␊ |
1947 | * Format of boot1f32 block.␊ |
1948 | */␊ |
1949 | ␊ |
1950 | #define BOOT1F32_MAGIC "BOOT "␊ |
1951 | #define BOOT1F32_MAGICLEN 11␊ |
1952 | ␊ |
1953 | struct disk_boot1f32_blk {␊ |
1954 | unsigned char init[3];␊ |
1955 | unsigned char fsheader[87];␊ |
1956 | unsigned char magic[BOOT1F32_MAGICLEN];␊ |
1957 | unsigned char bootcode[409];␊ |
1958 | unsigned short signature;␊ |
1959 | };␊ |
1960 | ␊ |
1961 | int testFAT32EFIBootSector( int biosdev, unsigned int secno, void * buffer )␊ |
1962 | {␊ |
1963 | struct disk_boot1f32_blk * bootSector = (struct disk_boot1f32_blk *) buffer;␊ |
1964 | int error;␊ |
1965 | ␊ |
1966 | if ( bootSector == NULL )␊ |
1967 | {␊ |
1968 | if ( gBootSector == NULL )␊ |
1969 | {␊ |
1970 | gBootSector = (struct disk_blk0 *) malloc(sizeof(*gBootSector));␊ |
1971 | if ( gBootSector == NULL ) return -1;␊ |
1972 | }␊ |
1973 | bootSector = (struct disk_boot1f32_blk *) gBootSector;␊ |
1974 | }␊ |
1975 | ␊ |
1976 | error = readBytes( biosdev, secno, 0, BPS, bootSector );␊ |
1977 | if ( error || bootSector->signature != DISK_SIGNATURE␊ |
1978 | || strncmp((const char *)bootSector->magic, BOOT1F32_MAGIC, BOOT1F32_MAGICLEN) )␊ |
1979 | return -1;␊ |
1980 | ␊ |
1981 | return 0;␊ |
1982 | }␊ |
1983 | ␊ |
1984 | //==========================================================================␊ |
1985 | // Handle seek request from filesystem modules.␊ |
1986 | ␊ |
1987 | void diskSeek( BVRef bvr, long long position )␊ |
1988 | {␊ |
1989 | bvr->fs_boff = position / BPS;␊ |
1990 | bvr->fs_byteoff = position % BPS;␊ |
1991 | }␊ |
1992 | ␊ |
1993 | //==========================================================================␊ |
1994 | // Handle read request from filesystem modules.␊ |
1995 | ␊ |
1996 | int diskRead( BVRef bvr, long addr, long length )␊ |
1997 | {␊ |
1998 | return readBytes( bvr->biosdev,␊ |
1999 | bvr->fs_boff + bvr->part_boff,␊ |
2000 | bvr->fs_byteoff,␊ |
2001 | length,␊ |
2002 | (void *) addr );␊ |
2003 | }␊ |
2004 | ␊ |
2005 | int rawDiskRead( BVRef bvr, unsigned int secno, void *buffer, unsigned int len )␊ |
2006 | {␊ |
2007 | int secs;␊ |
2008 | unsigned char *cbuf = (unsigned char *)buffer;␊ |
2009 | unsigned int copy_len;␊ |
2010 | int rc;␊ |
2011 | ␊ |
2012 | if ((len & (BPS-1)) != 0) {␊ |
2013 | error("raw disk read not sector aligned");␊ |
2014 | return -1;␊ |
2015 | }␊ |
2016 | secno += bvr->part_boff;␊ |
2017 | ␊ |
2018 | cache_valid = false;␊ |
2019 | ␊ |
2020 | while (len > 0) {␊ |
2021 | secs = len / BPS;␊ |
2022 | if (secs > N_CACHE_SECS) secs = N_CACHE_SECS;␊ |
2023 | copy_len = secs * BPS;␊ |
2024 | ␊ |
2025 | //printf("rdr: ebiosread(%d, %d, %d)\n", bvr->biosdev, secno, secs);␊ |
2026 | if ((rc = ebiosread(bvr->biosdev, secno, secs)) != 0) {␊ |
2027 | /* Ignore corrected ECC errors */␊ |
2028 | if (rc != ECC_CORRECTED_ERR) {␊ |
2029 | error(" EBIOS read error: %s\n", bios_error(rc), rc);␊ |
2030 | error(" Block %d Sectors %d\n", secno, secs);␊ |
2031 | return rc;␊ |
2032 | }␊ |
2033 | }␊ |
2034 | bcopy( trackbuf, cbuf, copy_len );␊ |
2035 | len -= copy_len;␊ |
2036 | cbuf += copy_len;␊ |
2037 | secno += secs;␊ |
2038 | spinActivityIndicator(secs);␊ |
2039 | }␊ |
2040 | ␊ |
2041 | return 0;␊ |
2042 | }␊ |
2043 | ␊ |
2044 | int rawDiskWrite( BVRef bvr, unsigned int secno, void *buffer, unsigned int len )␊ |
2045 | {␊ |
2046 | int secs;␊ |
2047 | unsigned char *cbuf = (unsigned char *)buffer;␊ |
2048 | unsigned int copy_len;␊ |
2049 | int rc;␊ |
2050 | ␊ |
2051 | if ((len & (BPS-1)) != 0) {␊ |
2052 | error("raw disk write not sector aligned");␊ |
2053 | return -1;␊ |
2054 | }␊ |
2055 | secno += bvr->part_boff;␊ |
2056 | ␊ |
2057 | cache_valid = false;␊ |
2058 | ␊ |
2059 | while (len > 0) {␊ |
2060 | secs = len / BPS;␊ |
2061 | if (secs > N_CACHE_SECS) secs = N_CACHE_SECS;␊ |
2062 | copy_len = secs * BPS;␊ |
2063 | ␊ |
2064 | bcopy( cbuf, trackbuf, copy_len );␊ |
2065 | //printf("rdr: ebioswrite(%d, %d, %d)\n", bvr->biosdev, secno, secs);␊ |
2066 | if ((rc = ebioswrite(bvr->biosdev, secno, secs)) != 0) {␊ |
2067 | error(" EBIOS write error: %s\n", bios_error(rc), rc);␊ |
2068 | error(" Block %d Sectors %d\n", secno, secs);␊ |
2069 | return rc;␊ |
2070 | }␊ |
2071 | len -= copy_len;␊ |
2072 | cbuf += copy_len;␊ |
2073 | secno += secs;␊ |
2074 | spinActivityIndicator(secs);␊ |
2075 | }␊ |
2076 | ␊ |
2077 | return 0;␊ |
2078 | }␊ |
2079 | ␊ |
2080 | int diskIsCDROM(BVRef bvr)␊ |
2081 | {␊ |
2082 | struct driveInfo di;␊ |
2083 | ␊ |
2084 | if (getDriveInfo(bvr->biosdev, &di) == 0 && di.no_emulation) {␊ |
2085 | ␉return 1;␊ |
2086 | }␊ |
2087 | return 0;␊ |
2088 | }␊ |
2089 | ␊ |
2090 | int biosDevIsCDROM(int biosdev)␊ |
2091 | {␊ |
2092 | struct driveInfo di;␊ |
2093 | ␊ |
2094 | if (getDriveInfo(biosdev, &di) == 0 && di.no_emulation)␊ |
2095 | {␊ |
2096 | ␉return 1;␊ |
2097 | }␊ |
2098 | return 0;␊ |
2099 | }␊ |
2100 | |