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 | /* Copyright 2007 VMware Inc.␊ |
48 | "Preboot" ramdisk support added by David Elliott␊ |
49 | GPT support added by David Elliott. Based on IOGUIDPartitionScheme.cpp.␊ |
50 | */␊ |
51 | ␊ |
52 | ␊ |
53 | ␊ |
54 | #include "libsaio.h"␊ |
55 | #include "boot.h"␊ |
56 | #include "bootstruct.h"␊ |
57 | #include "fdisk.h"␊ |
58 | #ifdef UFS_SUPPORT␊ |
59 | #include "ufs.h"␊ |
60 | #define UFS_FRONT_PORCH 0␊ |
61 | #endif␊ |
62 | #include "hfs.h"␊ |
63 | #ifndef NO_WIN_SUPPORT␊ |
64 | #include "ntfs.h"␊ |
65 | #include "msdos.h"␊ |
66 | #endif␊ |
67 | #ifndef NO_LINUX_SUPPORT␊ |
68 | #include "ext2fs.h"␊ |
69 | #endif␊ |
70 | #ifndef NO_OTHERS_BSD_SUPPORT␊ |
71 | #include "freebsd.h"␊ |
72 | #include "openbsd.h"␊ |
73 | #endif␊ |
74 | #ifndef NO_HAIKU_SUPPORT␊ |
75 | #include "befs.h"␊ |
76 | #endif␊ |
77 | ␊ |
78 | #include "xml.h"␊ |
79 | #include "disk.h"␊ |
80 | #include "modules.h"␊ |
81 | ␊ |
82 | #ifndef DEBUG_DISK␊ |
83 | #define DEBUG_DISK 0␊ |
84 | #endif␊ |
85 | ␊ |
86 | #if DEBUG_DISK==2␊ |
87 | #define DBG(x...) {printf(x); sleep(1);}␊ |
88 | #elif DEBUG_DISK==1␊ |
89 | #define DBG(x...) printf(x)␊ |
90 | #else␊ |
91 | #define DBG(x...)␊ |
92 | #endif␊ |
93 | ␊ |
94 | #ifdef APPLE_PARTITION_MAP_SUPPORT␊ |
95 | #define␉UINT_MAX␉0xffffffff␉/* max value for an unsigned int, defined in <limits.h>. */␊ |
96 | #include <IOKit/storage/IOApplePartitionScheme.h>␊ |
97 | #define kAPMSector 2 /* Sector number of Apple partition map */␊ |
98 | #define kAPMCDSector 8 /* Translated sector of Apple partition map on a CD */␊ |
99 | #else␊ |
100 | #define DPISTRLEN 32 // Defined in <IOApplePartitionScheme.h>.␊ |
101 | #endif␊ |
102 | ␊ |
103 | #include <IOKit/storage/IOGUIDPartitionScheme.h>␊ |
104 | typedef struct gpt_hdr gpt_hdr;␊ |
105 | typedef struct gpt_ent gpt_ent;␊ |
106 | ␊ |
107 | // For EFI_GUID␊ |
108 | #include "efi.h"␊ |
109 | #include "efi_tables.h"␊ |
110 | ␊ |
111 | #define PROBEFS_SIZE BPS * 4 /* buffer size for filesystem probe */␊ |
112 | #define N_CACHE_SECS (BIOS_LEN / BPS) /* Must be a multiple of 4 for CD-ROMs */␊ |
113 | ␊ |
114 | #if UNUSED␊ |
115 | #define CD_BPS 2048 /* CD-ROM block size */␊ |
116 | #endif␊ |
117 | ␊ |
118 | /*␊ |
119 | * IORound and IOTrunc convenience functions, in the spirit␊ |
120 | * of vm's round_page() and trunc_page().␊ |
121 | */␊ |
122 | #define IORound(value,multiple) \␊ |
123 | ((((value) + (multiple) - 1) / (multiple)) * (multiple))␊ |
124 | ␊ |
125 | /*␊ |
126 | #define IOTrunc(value,multiple) \␊ |
127 | (((value) / (multiple)) * (multiple));␊ |
128 | */␊ |
129 | ␊ |
130 | /*␊ |
131 | * trackbuf points to the start of the track cache. Biosread()␊ |
132 | * will store the sectors read from disk to this memory area.␊ |
133 | *␊ |
134 | * biosbuf points to a sector within the track cache, and is␊ |
135 | * updated by Biosread().␊ |
136 | */␊ |
137 | static char * const trackbuf = (char *) ptov(BIOS_ADDR);␊ |
138 | static char * biosbuf;␊ |
139 | ␊ |
140 | /*␊ |
141 | * Map a disk drive to bootable volumes contained within.␊ |
142 | */␊ |
143 | struct DiskBVMap {␊ |
144 | int biosdev; // BIOS device number (unique)␊ |
145 | BVRef bvr; // chain of boot volumes on the disk␊ |
146 | int bvrcnt; // number of boot volumes␊ |
147 | struct DiskBVMap * next; // linkage to next mapping␊ |
148 | };␊ |
149 | ␊ |
150 | static struct DiskBVMap * gDiskBVMap = NULL;␊ |
151 | static struct disk_blk0 * gBootSector = NULL;␊ |
152 | ␊ |
153 | ␊ |
154 | #if TEXT_SPINNER␊ |
155 | extern void spinActivityIndicator(int sectors);␊ |
156 | #endif␊ |
157 | ␊ |
158 | struct NamedValue {␊ |
159 | unsigned char value;␊ |
160 | const char * name;␊ |
161 | };␊ |
162 | ␊ |
163 | static int getDriveInfo( int biosdev, struct driveInfo *dip );␊ |
164 | static const char * getNameForValue( const struct NamedValue * nameTable,␊ |
165 | ␉␉␉␉␉␉␉␉␉unsigned char value );␊ |
166 | static int Biosread( int biosdev, unsigned long long secno );␊ |
167 | static int readBytes( int biosdev, unsigned long long blkno,␊ |
168 | ␉␉␉␉␉ unsigned int byteoff,␊ |
169 | ␉␉␉␉␉ unsigned int byteCount, void * buffer );␊ |
170 | static int isExtendedFDiskPartition( const struct fdisk_part * part );␊ |
171 | static int getNextFDiskPartition( int biosdev, int * partno,␊ |
172 | ␉␉␉␉␉␉␉␉ const struct fdisk_part ** outPart );␊ |
173 | static BVRef newFDiskBVRef( int biosdev, int partno, unsigned int blkoff,␊ |
174 | ␉␉␉␉␉␉ const struct fdisk_part * part,␊ |
175 | ␉␉␉␉␉␉ FSInit initFunc, FSLoadFile loadFunc,␊ |
176 | ␉␉␉␉␉␉ FSReadFile readFunc,␊ |
177 | ␉␉␉␉␉␉ FSGetDirEntry getdirFunc,␊ |
178 | ␉␉␉␉␉␉ FSGetFileBlock getBlockFunc,␊ |
179 | ␉␉␉␉␉␉ FSGetUUID getUUIDFunc,␊ |
180 | ␉␉␉␉␉␉ BVGetDescription getDescriptionFunc,␊ |
181 | ␉␉␉␉␉␉ BVFree bvFreeFunc,␊ |
182 | ␉␉␉␉␉␉ int probe, int type, unsigned int bvrFlags );␊ |
183 | static BVRef diskScanFDiskBootVolumes( int biosdev, int * countPtr );␊ |
184 | static int probeFileSystem(int biosdev, unsigned int blkoff);␊ |
185 | static bool isPartitionUsed(gpt_ent * partition);␊ |
186 | static BVRef diskScanGPTBootVolumes( int biosdev, int * countPtr );␊ |
187 | static void scanFSLevelBVRSettings(BVRef chain);␊ |
188 | #ifdef APPLE_PARTITION_MAP_SUPPORT␊ |
189 | static BVRef diskScanAPMBootVolumes( int biosdev, int * countPtr );␊ |
190 | #endif␊ |
191 | ␊ |
192 | //==========================================================================␊ |
193 | ␊ |
194 | static int getDriveInfo( int biosdev, struct driveInfo *dip )␊ |
195 | {␊ |
196 | static struct driveInfo cached_di;␊ |
197 | ␉int cc;␊ |
198 | #ifndef OPTION_ROM ␊ |
199 | // Real BIOS devices are 8-bit, so anything above that is for internal use.␊ |
200 | // Don't cache ramdisk drive info since it doesn't require several BIOS␊ |
201 | // calls and is thus not worth it.␊ |
202 | if(biosdev >= 0x100 && execute_hook("isRamDiskRegistred", NULL, NULL, NULL, NULL, NULL, NULL) == EFI_SUCCESS)␊ |
203 | {␊ |
204 | ␉␉int ret = 0;␊ |
205 | ␉␉execute_hook("p_get_ramdisk_info", &biosdev, (void *)dip, &ret, NULL, NULL, NULL);␊ |
206 | ␉␉return ret;␊ |
207 | ␉␉␊ |
208 | }␊ |
209 | #endif␊ |
210 | if ( !cached_di.valid || biosdev != cached_di.biosdev )␊ |
211 | {␊ |
212 | ␉␉cc = get_drive_info(biosdev, &cached_di);␊ |
213 | if (cc < 0) {␊ |
214 | ␉␉␉cached_di.valid = 0;␊ |
215 | DEBUG_DISK(("get_drive_info returned error\n"));␊ |
216 | ␉␉␉return (-1); // BIOS call error␊ |
217 | ␉␉}␊ |
218 | }␊ |
219 | ␉␊ |
220 | bcopy(&cached_di, dip, sizeof(cached_di));␊ |
221 | ␉␊ |
222 | return 0;␊ |
223 | }␊ |
224 | ␊ |
225 | //==========================================================================␊ |
226 | // Maps (E)BIOS return codes to message strings.␊ |
227 | ␊ |
228 | static const char * getNameForValue( const struct NamedValue * nameTable,␊ |
229 | ␉␉␉␉␉␉␉␉␉unsigned char value )␊ |
230 | {␊ |
231 | const struct NamedValue * np;␊ |
232 | ␉␊ |
233 | for ( np = nameTable; np->value; np++)␊ |
234 | if (np->value == value)␊ |
235 | return np->name;␊ |
236 | ␉␊ |
237 | return NULL;␊ |
238 | }␊ |
239 | ␊ |
240 | #define ECC_CORRECTED_ERR 0x11␊ |
241 | ␊ |
242 | static const struct NamedValue bios_errors[] = {␊ |
243 | { 0x10, "Media error" },␊ |
244 | { 0x11, "Corrected ECC error" },␊ |
245 | { 0x20, "Controller or device error" },␊ |
246 | { 0x40, "Seek failed" },␊ |
247 | { 0x80, "Device timeout" },␊ |
248 | { 0xAA, "Drive not ready" },␊ |
249 | { 0x00, 0 }␊ |
250 | };␊ |
251 | ␊ |
252 | static const char * bios_error(int errnum)␊ |
253 | {␊ |
254 | static char errorstr[] = "Error 0x00";␊ |
255 | const char * errname;␊ |
256 | ␉␊ |
257 | errname = getNameForValue( bios_errors, errnum );␊ |
258 | if ( errname ) return errname;␊ |
259 | ␉␊ |
260 | sprintf(errorstr, "Error 0x%02x", errnum);␊ |
261 | return errorstr; // No string, print error code only␊ |
262 | }␊ |
263 | ␊ |
264 | //==========================================================================␊ |
265 | // Use BIOS INT13 calls to read the sector specified. This function will␊ |
266 | // also perform read-ahead to cache a few subsequent sector to the sector␊ |
267 | // cache.␊ |
268 | // ␊ |
269 | // Return:␊ |
270 | // 0 on success, or an error code from INT13/F2 or INT13/F42 BIOS call.␊ |
271 | ␊ |
272 | static bool cache_valid = false;␊ |
273 | ␊ |
274 | static int Biosread( int biosdev, unsigned long long secno )␊ |
275 | {␊ |
276 | static int xbiosdev, xcyl, xhead;␊ |
277 | static unsigned int xsec, xnsecs;␊ |
278 | struct driveInfo di;␊ |
279 | ␉␊ |
280 | int rc = -1;␊ |
281 | int cyl, head, sec;␊ |
282 | int tries = 0;␊ |
283 | int bps, divisor;␊ |
284 | ␉␊ |
285 | if (getDriveInfo(biosdev, &di) < 0) {␊ |
286 | ␉␉return -1;␊ |
287 | }␊ |
288 | if (di.no_emulation) {␊ |
289 | ␉␉/* Always assume 2k block size; BIOS may lie about geometry */␊ |
290 | ␉␉bps = 2048;␊ |
291 | } else {␊ |
292 | ␉␉bps = di.di.params.phys_nbps;␊ |
293 | if (bps == 0) {␊ |
294 | return -1;␊ |
295 | }␊ |
296 | }␊ |
297 | divisor = bps / BPS;␊ |
298 | ␉␊ |
299 | DEBUG_DISK(("Biosread dev %x sec %d bps %d\n", biosdev, secno, bps));␊ |
300 | ␉␊ |
301 | // To read the disk sectors, use EBIOS if we can. Otherwise,␊ |
302 | // revert to the standard BIOS calls.␊ |
303 | ␉␊ |
304 | if ((biosdev >= kBIOSDevTypeHardDrive) &&␊ |
305 | (di.uses_ebios & EBIOS_FIXED_DISK_ACCESS))␊ |
306 | {␊ |
307 | if (cache_valid &&␊ |
308 | (biosdev == xbiosdev) &&␊ |
309 | (secno >= xsec) &&␊ |
310 | ((unsigned int)secno < (xsec + xnsecs)))␊ |
311 | {␊ |
312 | biosbuf = trackbuf + (BPS * (secno - xsec));␊ |
313 | return 0;␊ |
314 | }␊ |
315 | ␉␉␊ |
316 | xnsecs = N_CACHE_SECS;␊ |
317 | xsec = (secno / divisor) * divisor;␊ |
318 | cache_valid = false;␊ |
319 | ␉␉␊ |
320 | while ((rc = ebiosread(biosdev, secno / divisor, xnsecs / divisor)) && (++tries < 5))␊ |
321 | {␊ |
322 | if (rc == ECC_CORRECTED_ERR) {␊ |
323 | /* Ignore corrected ECC errors */␊ |
324 | rc = 0;␊ |
325 | break;␊ |
326 | }␊ |
327 | error(" EBIOS read error: %s\n", bios_error(rc), rc);␊ |
328 | error(" Block 0x%x Sectors %d\n", secno, xnsecs);␊ |
329 | sleep(1);␊ |
330 | }␊ |
331 | }␊ |
332 | else␊ |
333 | {␊ |
334 | ␉␉/* spc = spt * heads */␊ |
335 | ␉␉int spc = (di.di.params.phys_spt * di.di.params.phys_heads);␊ |
336 | cyl = secno / spc;␊ |
337 | head = (secno % spc) / di.di.params.phys_spt;␊ |
338 | sec = secno % di.di.params.phys_spt;␊ |
339 | ␉␉␊ |
340 | if (cache_valid &&␊ |
341 | (biosdev == xbiosdev) &&␊ |
342 | (cyl == xcyl) &&␊ |
343 | (head == xhead) &&␊ |
344 | ((unsigned int)sec >= xsec) &&␊ |
345 | ((unsigned int)sec < (xsec + xnsecs)))␊ |
346 | {␊ |
347 | // this sector is in trackbuf cache␊ |
348 | biosbuf = trackbuf + (BPS * (sec - xsec));␊ |
349 | return 0;␊ |
350 | }␊ |
351 | ␉␉␊ |
352 | // Cache up to a track worth of sectors, but do not cross a␊ |
353 | // track boundary.␊ |
354 | ␉␉␊ |
355 | xcyl = cyl;␊ |
356 | xhead = head;␊ |
357 | xsec = sec;␊ |
358 | xnsecs = ((unsigned int)(sec + N_CACHE_SECS) > di.di.params.phys_spt) ? (di.di.params.phys_spt - sec) : N_CACHE_SECS;␊ |
359 | cache_valid = false;␊ |
360 | ␉␉␊ |
361 | while ((rc = biosread(biosdev, cyl, head, sec, xnsecs)) &&␊ |
362 | (++tries < 5))␊ |
363 | {␊ |
364 | if (rc == ECC_CORRECTED_ERR) {␊ |
365 | /* Ignore corrected ECC errors */␊ |
366 | rc = 0;␊ |
367 | break;␊ |
368 | }␊ |
369 | error(" BIOS read error: %s\n", bios_error(rc), rc);␊ |
370 | error(" Block %d, Cyl %d Head %d Sector %d\n",␊ |
371 | secno, cyl, head, sec);␊ |
372 | sleep(1);␊ |
373 | }␊ |
374 | }␊ |
375 | ␉␊ |
376 | // If the BIOS reported success, mark the sector cache as valid.␊ |
377 | ␉␊ |
378 | if (rc == 0) {␊ |
379 | cache_valid = true;␊ |
380 | }␊ |
381 | biosbuf = trackbuf + (secno % divisor) * BPS;␊ |
382 | xbiosdev = biosdev;␊ |
383 | ␊ |
384 | #if TEXT_SPINNER␊ |
385 | ␉spinActivityIndicator(xnsecs);␊ |
386 | #endif␊ |
387 | ␉␊ |
388 | return rc;␊ |
389 | }␊ |
390 | ␊ |
391 | //==========================================================================␊ |
392 | ␊ |
393 | int testBiosread( int biosdev, unsigned long long secno )␊ |
394 | {␊ |
395 | ␉return Biosread(biosdev, secno);␊ |
396 | }␊ |
397 | ␊ |
398 | //==========================================================================␊ |
399 | ␊ |
400 | static int readBytes( int biosdev, unsigned long long blkno,␊ |
401 | ␉␉␉␉␉ unsigned int byteoff,␊ |
402 | ␉␉␉␉␉ unsigned int byteCount, void * buffer )␊ |
403 | {␊ |
404 | #ifndef OPTION_ROM ␊ |
405 | // ramdisks require completely different code for reading.␊ |
406 | ␊ |
407 | ␉␊ |
408 | ␉if(biosdev >= 0x100 && (execute_hook("isRamDiskRegistred", NULL, NULL, NULL, NULL, NULL, NULL) == EFI_SUCCESS)){␊ |
409 | ␉␊ |
410 | ␉␉int ret = -1;␊ |
411 | ␉␉execute_hook("p_ramdiskReadBytes", &biosdev, &blkno, &byteoff, &byteCount, buffer, &ret);␊ |
412 | ␉␉return ret;␊ |
413 | ␉}␊ |
414 | #endif␉␉␉␊ |
415 | ␉␊ |
416 | char * cbuf = (char *) buffer;␊ |
417 | int error;␊ |
418 | int copy_len;␊ |
419 | ␉␊ |
420 | DEBUG_DISK(("%s: dev %x block %x [%d] -> 0x%x...", __FUNCTION__,␊ |
421 | biosdev, blkno, byteCount, (unsigned)cbuf));␊ |
422 | ␉␊ |
423 | for ( ; byteCount; cbuf += copy_len, blkno++ )␊ |
424 | {␊ |
425 | error = Biosread( biosdev, blkno );␊ |
426 | if ( error )␊ |
427 | {␊ |
428 | DEBUG_DISK(("error\n"));␊ |
429 | return (-1);␊ |
430 | }␊ |
431 | ␉␉␊ |
432 | copy_len = ((byteCount + byteoff) > BPS) ? (BPS - byteoff) : byteCount;␊ |
433 | bcopy( biosbuf + byteoff, cbuf, copy_len );␊ |
434 | byteCount -= copy_len;␊ |
435 | byteoff = 0;␊ |
436 | }␊ |
437 | ␉␊ |
438 | DEBUG_DISK(("done\n"));␊ |
439 | ␉␊ |
440 | return 0; ␊ |
441 | }␊ |
442 | ␊ |
443 | //==========================================================================␊ |
444 | ␊ |
445 | static int isExtendedFDiskPartition( const struct fdisk_part * part )␊ |
446 | {␊ |
447 | static unsigned char extParts[] =␊ |
448 | {␊ |
449 | 0x05, /* Extended */␊ |
450 | 0x0f, /* Win95 extended */␊ |
451 | 0x85, /* Linux extended */␊ |
452 | };␊ |
453 | ␉␊ |
454 | unsigned int i;␊ |
455 | ␉␊ |
456 | for (i = 0; i < sizeof(extParts)/sizeof(extParts[0]); i++)␊ |
457 | {␊ |
458 | if (extParts[i] == part->systid) return 1;␊ |
459 | }␊ |
460 | return 0;␊ |
461 | }␊ |
462 | ␊ |
463 | //==========================================================================␊ |
464 | ␊ |
465 | static int getNextFDiskPartition( int biosdev, int * partno,␊ |
466 | ␉␉␉␉␉␉␉␉ const struct fdisk_part ** outPart )␊ |
467 | {␊ |
468 | static int sBiosdev = -1;␊ |
469 | static int sNextPartNo;␊ |
470 | static unsigned int sFirstBase;␊ |
471 | static unsigned int sExtBase;␊ |
472 | static unsigned int sExtDepth;␊ |
473 | static struct fdisk_part * sExtPart;␊ |
474 | struct fdisk_part * part;␊ |
475 | ␉␊ |
476 | if ( sBiosdev != biosdev || *partno < 0 )␊ |
477 | {␊ |
478 | // Fetch MBR.␊ |
479 | if ( readBootSector( biosdev, DISK_BLK0, 0 ) ) return 0;␊ |
480 | ␉␉␊ |
481 | sBiosdev = biosdev;␊ |
482 | sNextPartNo = 0;␊ |
483 | sFirstBase = 0;␊ |
484 | sExtBase = 0;␊ |
485 | sExtDepth = 0;␊ |
486 | sExtPart = NULL;␊ |
487 | }␊ |
488 | ␉␊ |
489 | while (1)␊ |
490 | {␊ |
491 | part = NULL;␊ |
492 | ␉␉␊ |
493 | if ( sNextPartNo < FDISK_NPART )␊ |
494 | {␊ |
495 | part = (struct fdisk_part *) gBootSector->parts[sNextPartNo];␊ |
496 | }␊ |
497 | else if ( sExtPart )␊ |
498 | {␊ |
499 | unsigned int blkno = sExtPart->relsect + sFirstBase;␊ |
500 | ␉␉␉␊ |
501 | // Save the block offset of the first extended partition.␊ |
502 | ␉␉␉␊ |
503 | if (sExtDepth == 0) {␊ |
504 | sFirstBase = blkno;␊ |
505 | }␊ |
506 | sExtBase = blkno;␊ |
507 | ␉␉␉␊ |
508 | // Load extended partition table.␊ |
509 | ␉␉␉␊ |
510 | if ( readBootSector( biosdev, blkno, 0 ) == 0 )␊ |
511 | {␊ |
512 | sNextPartNo = 0;␊ |
513 | sExtDepth++;␊ |
514 | sExtPart = NULL;␊ |
515 | continue;␊ |
516 | }␊ |
517 | // Fall through to part == NULL␊ |
518 | }␊ |
519 | ␉␉␊ |
520 | if ( part == NULL ) break; // Reached end of partition chain.␊ |
521 | ␉␉␊ |
522 | // Advance to next partition number.␊ |
523 | ␉␉␊ |
524 | sNextPartNo++;␊ |
525 | ␉␉␊ |
526 | if ( isExtendedFDiskPartition(part) )␊ |
527 | {␊ |
528 | sExtPart = part;␊ |
529 | continue;␊ |
530 | }␊ |
531 | ␉␉␊ |
532 | // Skip empty slots.␊ |
533 | ␉␉␊ |
534 | if ( part->systid == 0x00 )␊ |
535 | {␊ |
536 | continue;␊ |
537 | }␊ |
538 | ␉␉␊ |
539 | // Change relative offset to an absolute offset.␊ |
540 | part->relsect += sExtBase;␊ |
541 | ␉␉␊ |
542 | *outPart = part;␊ |
543 | *partno = sExtDepth ? (int)(sExtDepth + FDISK_NPART) : sNextPartNo;␊ |
544 | ␉␉␊ |
545 | break;␊ |
546 | }␊ |
547 | ␉␊ |
548 | return (part != NULL);␊ |
549 | }␊ |
550 | ␊ |
551 | //==========================================================================␊ |
552 | ␊ |
553 | static BVRef newFDiskBVRef( int biosdev, int partno, unsigned int blkoff,␊ |
554 | ␉␉␉␉␉␉ const struct fdisk_part * part,␊ |
555 | ␉␉␉␉␉␉ FSInit initFunc, FSLoadFile loadFunc,␊ |
556 | ␉␉␉␉␉␉ FSReadFile readFunc,␊ |
557 | ␉␉␉␉␉␉ FSGetDirEntry getdirFunc,␊ |
558 | ␉␉␉␉␉␉ FSGetFileBlock getBlockFunc,␊ |
559 | ␉␉␉␉␉␉ FSGetUUID getUUIDFunc,␊ |
560 | ␉␉␉␉␉␉ BVGetDescription getDescriptionFunc,␊ |
561 | ␉␉␉␉␉␉ BVFree bvFreeFunc,␊ |
562 | ␉␉␉␉␉␉ int probe, int type, unsigned int bvrFlags )␊ |
563 | {␊ |
564 | BVRef bvr = (BVRef) malloc( sizeof(*bvr) );␊ |
565 | if ( bvr )␊ |
566 | {␊ |
567 | bzero(bvr, sizeof(*bvr));␊ |
568 | ␉␉␊ |
569 | bvr->biosdev = biosdev;␊ |
570 | bvr->part_no = partno;␊ |
571 | bvr->part_boff = blkoff;␊ |
572 | bvr->part_type = part->systid;␊ |
573 | bvr->fs_loadfile = loadFunc;␊ |
574 | bvr->fs_readfile = readFunc;␊ |
575 | bvr->fs_getdirentry = getdirFunc;␊ |
576 | bvr->fs_getfileblock= getBlockFunc;␊ |
577 | bvr->fs_getuuid = getUUIDFunc;␊ |
578 | bvr->description = getDescriptionFunc;␊ |
579 | bvr->type = type;␊ |
580 | bvr->bv_free = bvFreeFunc;␊ |
581 | ␉␉␊ |
582 | if ((part->bootid & FDISK_ACTIVE) && (part->systid == FDISK_HFS))␊ |
583 | bvr->flags |= kBVFlagPrimary;␊ |
584 | ␉␉␊ |
585 | // Probe the filesystem.␊ |
586 | ␉␉␊ |
587 | if ( initFunc )␊ |
588 | {␊ |
589 | bvr->flags |= kBVFlagNativeBoot;␊ |
590 | ␉␉␉␊ |
591 | if ( probe && initFunc( bvr ) != 0 )␊ |
592 | {␊ |
593 | // filesystem probe failed.␊ |
594 | ␉␉␉␉␊ |
595 | DEBUG_DISK(("%s: failed probe on dev %x part %d\n",␊ |
596 | __FUNCTION__, biosdev, partno));␊ |
597 | ␉␉␉␉␊ |
598 | (*bvr->bv_free)(bvr);␊ |
599 | bvr = NULL;␊ |
600 | }␊ |
601 | if ( readBootSector( biosdev, blkoff, (void *)0x7e00 ) == 0 )␊ |
602 | {␊ |
603 | ␉bvr->flags |= kBVFlagBootable;␊ |
604 | }␊ |
605 | }␊ |
606 | else if ( readBootSector( biosdev, blkoff, (void *)0x7e00 ) == 0 )␊ |
607 | {␊ |
608 | bvr->flags |= kBVFlagForeignBoot;␊ |
609 | }␊ |
610 | else␊ |
611 | {␊ |
612 | (*bvr->bv_free)(bvr);␊ |
613 | bvr = NULL;␊ |
614 | }␊ |
615 | }␊ |
616 | if (bvr) bvr->flags |= bvrFlags;␊ |
617 | return bvr;␊ |
618 | }␊ |
619 | ␊ |
620 | #ifdef APPLE_PARTITION_MAP_SUPPORT␊ |
621 | //==========================================================================␊ |
622 | ␊ |
623 | BVRef newAPMBVRef( int biosdev, int partno, unsigned int blkoff,␊ |
624 | ␉␉␉␉ const DPME * part,␊ |
625 | ␉␉␉␉ FSInit initFunc, FSLoadFile loadFunc,␊ |
626 | ␉␉␉␉ FSReadFile readFunc,␊ |
627 | ␉␉␉␉ FSGetDirEntry getdirFunc,␊ |
628 | ␉␉␉␉ FSGetFileBlock getBlockFunc,␊ |
629 | ␉␉␉␉ FSGetUUID getUUIDFunc,␊ |
630 | ␉␉␉␉ BVGetDescription getDescriptionFunc,␊ |
631 | ␉␉␉␉ BVFree bvFreeFunc,␊ |
632 | ␉␉␉␉ int probe, int type, unsigned int bvrFlags )␊ |
633 | {␊ |
634 | BVRef bvr = (BVRef) malloc( sizeof(*bvr) );␊ |
635 | if ( bvr )␊ |
636 | {␊ |
637 | bzero(bvr, sizeof(*bvr));␊ |
638 | ␉␉␊ |
639 | bvr->biosdev = biosdev;␊ |
640 | bvr->part_no = partno;␊ |
641 | bvr->part_boff = blkoff;␊ |
642 | bvr->fs_loadfile = loadFunc;␊ |
643 | bvr->fs_readfile = readFunc;␊ |
644 | bvr->fs_getdirentry = getdirFunc;␊ |
645 | bvr->fs_getfileblock= getBlockFunc;␊ |
646 | bvr->fs_getuuid = getUUIDFunc;␊ |
647 | bvr->description = getDescriptionFunc;␊ |
648 | bvr->type = type;␊ |
649 | bvr->bv_free = bvFreeFunc;␊ |
650 | strlcpy(bvr->name, part->dpme_name, DPISTRLEN);␊ |
651 | strlcpy(bvr->type_name, part->dpme_type, DPISTRLEN);␊ |
652 | ␉␉␊ |
653 | /*␊ |
654 | ␉␉ if ( part->bootid & FDISK_ACTIVE )␊ |
655 | ␉␉ bvr->flags |= kBVFlagPrimary;␊ |
656 | ␉␉ */␊ |
657 | ␉␉␊ |
658 | // Probe the filesystem.␊ |
659 | ␉␉␊ |
660 | if ( initFunc )␊ |
661 | {␊ |
662 | bvr->flags |= kBVFlagNativeBoot | kBVFlagBootable | kBVFlagSystemVolume;␊ |
663 | ␉␉␉␊ |
664 | if ( probe && initFunc( bvr ) != 0 )␊ |
665 | {␊ |
666 | // filesystem probe failed.␊ |
667 | ␉␉␉␉␊ |
668 | DEBUG_DISK(("%s: failed probe on dev %x part %d\n",␊ |
669 | __FUNCTION__, biosdev, partno));␊ |
670 | ␉␉␉␉␊ |
671 | (*bvr->bv_free)(bvr);␊ |
672 | bvr = NULL;␊ |
673 | }␊ |
674 | }␊ |
675 | /*␊ |
676 | ␉␉ else if ( readBootSector( biosdev, blkoff, (void *)0x7e00 ) == 0 )␊ |
677 | ␉␉ {␊ |
678 | ␉␉ bvr->flags |= kBVFlagForeignBoot;␊ |
679 | ␉␉ }␊ |
680 | ␉␉ */␊ |
681 | else␊ |
682 | {␊ |
683 | (*bvr->bv_free)(bvr);␊ |
684 | bvr = NULL;␊ |
685 | }␊ |
686 | }␊ |
687 | if (bvr) bvr->flags |= bvrFlags;␊ |
688 | return bvr;␊ |
689 | }␊ |
690 | #endif␊ |
691 | //==========================================================================␊ |
692 | ␊ |
693 | // HFS+ GUID in LE form␊ |
694 | EFI_GUID const GPT_HFS_GUID␉= { 0x48465300, 0x0000, 0x11AA, { 0xAA, 0x11, 0x00, 0x30, 0x65, 0x43, 0xEC, 0xAC } };␊ |
695 | // turbo - also our booter partition␊ |
696 | EFI_GUID const GPT_BOOT_GUID␉= { 0x426F6F74, 0x0000, 0x11AA, { 0xAA, 0x11, 0x00, 0x30, 0x65, 0x43, 0xEC, 0xAC } };␊ |
697 | // turbo - or an efi system partition␊ |
698 | EFI_GUID const GPT_EFISYS_GUID␉= { 0xC12A7328, 0xF81F, 0x11D2, { 0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B } };␊ |
699 | // zef - basic data partition EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 for foreign OS support␊ |
700 | EFI_GUID const GPT_BASICDATA_GUID = { 0xEBD0A0A2, 0xB9E5, 0x4433, { 0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7 } };␊ |
701 | EFI_GUID const GPT_BASICDATA2_GUID = { 0xE3C9E316, 0x0B5C, 0x4DB8, { 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE } };␊ |
702 | ␊ |
703 | ␊ |
704 | BVRef newGPTBVRef( int biosdev, int partno, unsigned int blkoff,␊ |
705 | ␉␉␉␉ const gpt_ent * part,␊ |
706 | ␉␉␉␉ FSInit initFunc, FSLoadFile loadFunc,␊ |
707 | ␉␉␉␉ FSReadFile readFunc,␊ |
708 | ␉␉␉␉ FSGetDirEntry getdirFunc,␊ |
709 | ␉␉␉␉ FSGetFileBlock getBlockFunc,␊ |
710 | ␉␉␉␉ FSGetUUID getUUIDFunc,␊ |
711 | ␉␉␉␉ BVGetDescription getDescriptionFunc,␊ |
712 | ␉␉␉␉ BVFree bvFreeFunc,␊ |
713 | ␉␉␉␉ int probe, int type, unsigned int bvrFlags )␊ |
714 | {␊ |
715 | BVRef bvr = (BVRef) malloc( sizeof(*bvr) );␊ |
716 | if ( bvr )␊ |
717 | {␊ |
718 | bzero(bvr, sizeof(*bvr));␊ |
719 | ␉␉␊ |
720 | bvr->biosdev = biosdev;␊ |
721 | bvr->part_no = partno;␊ |
722 | bvr->part_boff = blkoff;␊ |
723 | bvr->fs_loadfile = loadFunc;␊ |
724 | bvr->fs_readfile = readFunc;␊ |
725 | bvr->fs_getdirentry = getdirFunc;␊ |
726 | bvr->fs_getfileblock= getBlockFunc;␊ |
727 | bvr->fs_getuuid = getUUIDFunc;␊ |
728 | bvr->description = getDescriptionFunc;␊ |
729 | ␉bvr->type = type;␊ |
730 | bvr->bv_free = bvFreeFunc;␊ |
731 | // FIXME: UCS-2 -> UTF-8 the name␊ |
732 | strlcpy(bvr->name, "----", DPISTRLEN);␊ |
733 | if ( (efi_guid_compare(&GPT_BOOT_GUID, (EFI_GUID const*)part->ent_type) == 0) ||␊ |
734 | ␉␉␉(efi_guid_compare(&GPT_HFS_GUID, (EFI_GUID const*)part->ent_type) == 0) )␊ |
735 | ␉␉␉strlcpy(bvr->type_name, "GPT HFS+", DPISTRLEN);␊ |
736 | else␊ |
737 | ␉␉␉strlcpy(bvr->type_name, "GPT Unknown", DPISTRLEN);␊ |
738 | ␉␉␊ |
739 | /*␊ |
740 | ␉␉ if ( part->bootid & FDISK_ACTIVE )␊ |
741 | ␉␉ bvr->flags |= kBVFlagPrimary;␊ |
742 | ␉␉ */␊ |
743 | ␉␉␊ |
744 | // Probe the filesystem.␊ |
745 | ␉␉␊ |
746 | if ( initFunc )␊ |
747 | {␊ |
748 | bvr->flags |= kBVFlagNativeBoot;␊ |
749 | ␉␉␉␊ |
750 | if ( probe && initFunc( bvr ) != 0 )␊ |
751 | {␊ |
752 | // filesystem probe failed.␊ |
753 | ␉␉␉␉␊ |
754 | DEBUG_DISK(("%s: failed probe on dev %x part %d\n",␊ |
755 | __FUNCTION__, biosdev, partno));␊ |
756 | ␉␉␉␉␊ |
757 | (*bvr->bv_free)(bvr);␊ |
758 | bvr = NULL;␊ |
759 | }␊ |
760 | if ( readBootSector( biosdev, blkoff, (void *)0x7e00 ) == 0 )␊ |
761 | {␊ |
762 | ␉bvr->flags |= kBVFlagBootable;␊ |
763 | }␊ |
764 | }␊ |
765 | else if ( readBootSector( biosdev, blkoff, (void *)0x7e00 ) == 0 )␊ |
766 | {␊ |
767 | bvr->flags |= kBVFlagForeignBoot;␊ |
768 | }␊ |
769 | else␊ |
770 | {␊ |
771 | (*bvr->bv_free)(bvr);␊ |
772 | bvr = NULL;␊ |
773 | }␊ |
774 | }␊ |
775 | if (bvr) bvr->flags |= bvrFlags;␊ |
776 | return bvr;␊ |
777 | }␊ |
778 | ␊ |
779 | //==========================================================================␊ |
780 | ␊ |
781 | /* A note on partition numbers:␊ |
782 | * IOKit makes the primary partitions numbers 1-4, and then␊ |
783 | * extended partitions are numbered consecutively 5 and up.␊ |
784 | * So, for example, if you have two primary partitions and␊ |
785 | * one extended partition they will be numbered 1, 2, 5.␊ |
786 | */␊ |
787 | ␊ |
788 | static BVRef diskScanFDiskBootVolumes( int biosdev, int * countPtr )␊ |
789 | {␊ |
790 | const struct fdisk_part * part;␊ |
791 | struct DiskBVMap * map;␊ |
792 | int partno = -1;␊ |
793 | BVRef bvr;␊ |
794 | #ifdef UFS_SUPPORT␊ |
795 | BVRef booterUFS = NULL;␊ |
796 | int spc;␊ |
797 | struct driveInfo di;␊ |
798 | boot_drive_info_t *dp;␊ |
799 | ␉␊ |
800 | /* Initialize disk info */␊ |
801 | if (getDriveInfo(biosdev, &di) != 0) {␊ |
802 | ␉␉return NULL;␊ |
803 | }␊ |
804 | dp = &di.di;␊ |
805 | spc = (dp->params.phys_spt * dp->params.phys_heads);␊ |
806 | if (spc == 0) {␊ |
807 | ␉␉/* This is probably a CD-ROM; punt on the geometry. */␊ |
808 | ␉␉spc = 1;␊ |
809 | }␊ |
810 | #endif␊ |
811 | ␉␊ |
812 | do {␊ |
813 | // Create a new mapping.␊ |
814 | ␉␉␊ |
815 | map = (struct DiskBVMap *) malloc( sizeof(*map) );␊ |
816 | if ( map )␊ |
817 | {␊ |
818 | map->biosdev = biosdev;␊ |
819 | map->bvr = NULL;␊ |
820 | map->bvrcnt = 0;␊ |
821 | map->next = gDiskBVMap;␊ |
822 | gDiskBVMap = map;␊ |
823 | ␉␉␉␊ |
824 | // Create a record for each partition found on the disk.␊ |
825 | ␉␉␉␊ |
826 | while ( getNextFDiskPartition( biosdev, &partno, &part ) )␊ |
827 | {␊ |
828 | DEBUG_DISK(("%s: part %d [%x]\n", __FUNCTION__,␊ |
829 | partno, part->systid));␊ |
830 | bvr = 0;␊ |
831 | ␉␉␉␉␊ |
832 | switch ( part->systid )␊ |
833 | {␊ |
834 | #ifdef UFS_SUPPORT␊ |
835 | case FDISK_UFS:␊ |
836 | ␉␉␉␉␉␉bvr = newFDiskBVRef(␊ |
837 | ␉␉␉␉␉␉␉␉␉␉␉biosdev, partno,␊ |
838 | ␉␉␉␉␉␉␉␉␉␉␉part->relsect + UFS_FRONT_PORCH/BPS,␊ |
839 | ␉␉␉␉␉␉␉␉␉␉␉part,␊ |
840 | ␉␉␉␉␉␉␉␉␉␉␉UFSInitPartition,␊ |
841 | ␉␉␉␉␉␉␉␉␉␉␉UFSLoadFile,␊ |
842 | ␉␉␉␉␉␉␉␉␉␉␉UFSReadFile,␊ |
843 | ␉␉␉␉␉␉␉␉␉␉␉UFSGetDirEntry,␊ |
844 | ␉␉␉␉␉␉␉␉␉␉␉UFSGetFileBlock,␊ |
845 | ␉␉␉␉␉␉␉␉␉␉␉UFSGetUUID,␊ |
846 | ␉␉␉␉␉␉␉␉␉␉␉UFSGetDescription,␊ |
847 | ␉␉␉␉␉␉␉␉␉␉␉UFSFree,␊ |
848 | ␉␉␉␉␉␉␉␉␉␉␉0,␊ |
849 | ␉␉␉␉␉␉␉␉␉␉␉kBIOSDevTypeHardDrive, 0);␊ |
850 | break;␊ |
851 | #endif␊ |
852 | ␉␉␉␉␉␉␊ |
853 | case FDISK_HFS:␊ |
854 | bvr = newFDiskBVRef(␊ |
855 | ␉␉␉␉␉␉␉␉␉␉␉biosdev, partno,␊ |
856 | ␉␉␉␉␉␉␉␉␉␉␉part->relsect,␊ |
857 | ␉␉␉␉␉␉␉␉␉␉␉part,␊ |
858 | ␉␉␉␉␉␉␉␉␉␉␉HFSInitPartition,␊ |
859 | ␉␉␉␉␉␉␉␉␉␉␉HFSLoadFile,␊ |
860 | ␉␉␉␉␉␉␉␉␉␉␉HFSReadFile,␊ |
861 | ␉␉␉␉␉␉␉␉␉␉␉HFSGetDirEntry,␊ |
862 | ␉␉␉␉␉␉␉␉␉␉␉HFSGetFileBlock,␊ |
863 | ␉␉␉␉␉␉␉␉␉␉␉HFSGetUUID,␊ |
864 | ␉␉␉␉␉␉␉␉␉␉␉HFSGetDescription,␊ |
865 | ␉␉␉␉␉␉␉␉␉␉␉HFSFree,␊ |
866 | ␉␉␉␉␉␉␉␉␉␉␉0,␊ |
867 | ␉␉␉␉␉␉␉␉␉␉␉kBIOSDevTypeHardDrive, 0);␊ |
868 | break;␊ |
869 | ␉␉␉␉␉␉␊ |
870 | ␉␉␉␉␉␉// turbo - we want the booter type scanned also␊ |
871 | case FDISK_BOOTER:␊ |
872 | if (part->bootid & FDISK_ACTIVE) {␊ |
873 | ␉␉␉␉␉␉␉gBIOSBootVolume = newFDiskBVRef(␊ |
874 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉biosdev, partno,␊ |
875 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉part->relsect,␊ |
876 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉part,␊ |
877 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉HFSInitPartition,␊ |
878 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉HFSLoadFile,␊ |
879 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉HFSReadFile,␊ |
880 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉HFSGetDirEntry,␊ |
881 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉HFSGetFileBlock,␊ |
882 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉HFSGetUUID,␊ |
883 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉HFSGetDescription,␊ |
884 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉HFSFree,␊ |
885 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉0,␊ |
886 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉kBIOSDevTypeHardDrive, 0);␊ |
887 | ␉␉␉␉␉␉␉break;␊ |
888 | ␉␉␉␉␉␉}␊ |
889 | #ifndef UFS_SUPPORT␉␉␉␉␉␉␊ |
890 | break;␊ |
891 | #else␉␉␉␉␉␉␊ |
892 | ␊ |
893 | //case FDISK_BOOTER:␊ |
894 | booterUFS = newFDiskBVRef(␊ |
895 | ␉␉␉␉␉␉␉␉␉␉␉␉ biosdev, partno,␊ |
896 | ␉␉␉␉␉␉␉␉␉␉␉␉ ((part->relsect + spc - 1) / spc) * spc,␊ |
897 | ␉␉␉␉␉␉␉␉␉␉␉␉ part,␊ |
898 | ␉␉␉␉␉␉␉␉␉␉␉␉ UFSInitPartition,␊ |
899 | ␉␉␉␉␉␉␉␉␉␉␉␉ UFSLoadFile,␊ |
900 | ␉␉␉␉␉␉␉␉␉␉␉␉ UFSReadFile,␊ |
901 | ␉␉␉␉␉␉␉␉␉␉␉␉ UFSGetDirEntry,␊ |
902 | ␉␉␉␉␉␉␉␉␉␉␉␉ UFSGetFileBlock,␊ |
903 | ␉␉␉␉␉␉␉␉␉␉␉␉ UFSGetUUID,␊ |
904 | ␉␉␉␉␉␉␉␉␉␉␉␉ UFSGetDescription,␊ |
905 | ␉␉␉␉␉␉␉␉␉␉␉␉ UFSFree,␊ |
906 | ␉␉␉␉␉␉␉␉␉␉␉␉ 0,␊ |
907 | ␉␉␉␉␉␉␉␉␉␉␉␉ kBIOSDevTypeHardDrive, 0);␊ |
908 | break;␊ |
909 | #endif␊ |
910 | #ifndef NO_WIN_SUPPORT␉␉␉␉␉␉␊ |
911 | case FDISK_FAT32:␊ |
912 | case FDISK_DOS12:␊ |
913 | case FDISK_DOS16S:␊ |
914 | case FDISK_DOS16B:␊ |
915 | case FDISK_SMALLFAT32:␊ |
916 | case FDISK_DOS16SLBA:␊ |
917 | ␉␉␉␉␉␉bvr = newFDiskBVRef(␊ |
918 | ␉␉␉␉␉␉␉␉␉␉␉biosdev, partno,␊ |
919 | ␉␉␉␉␉␉␉␉␉␉␉part->relsect,␊ |
920 | ␉␉␉␉␉␉␉␉␉␉␉part,␊ |
921 | ␉␉␉␉␉␉␉␉␉␉␉MSDOSInitPartition,␊ |
922 | ␉␉␉␉␉␉␉␉␉␉␉MSDOSLoadFile,␊ |
923 | ␉␉␉␉␉␉␉␉␉␉␉MSDOSReadFile,␊ |
924 | ␉␉␉␉␉␉␉␉␉␉␉MSDOSGetDirEntry,␊ |
925 | ␉␉␉␉␉␉␉␉␉␉␉MSDOSGetFileBlock,␊ |
926 | ␉␉␉␉␉␉␉␉␉␉␉MSDOSGetUUID,␊ |
927 | ␉␉␉␉␉␉␉␉␉␉␉MSDOSGetDescription,␊ |
928 | ␉␉␉␉␉␉␉␉␉␉␉MSDOSFree,␊ |
929 | ␉␉␉␉␉␉␉␉␉␉␉0,␊ |
930 | ␉␉␉␉␉␉␉␉␉␉␉kBIOSDevTypeHardDrive, 0);␊ |
931 | ␉␉␉␉␉␉break;␊ |
932 | case FDISK_NTFS:␊ |
933 | ␉␉␉␉␉␉bvr = newFDiskBVRef(␊ |
934 | ␉␉␉␉␉␉␉␉␉␉␉biosdev, partno,␊ |
935 | ␉␉␉␉␉␉␉␉␉␉␉part->relsect,␊ |
936 | ␉␉␉␉␉␉␉␉␉␉␉part,␊ |
937 | ␉␉␉␉␉␉␉␉␉␉␉0, 0, 0, 0, 0,␊ |
938 | ␉␉␉␉␉␉␉␉␉␉␉NTFSGetUUID,␊ |
939 | ␉␉␉␉␉␉␉␉␉␉␉NTFSGetDescription,␊ |
940 | ␉␉␉␉␉␉␉␉␉␉␉(BVFree)free,␊ |
941 | ␉␉␉␉␉␉␉␉␉␉␉0, kBIOSDevTypeHardDrive, 0);␊ |
942 | ␉␉␉␉␉␉break;␊ |
943 | #endif␊ |
944 | ␊ |
945 | #ifndef NO_LINUX_SUPPORT␊ |
946 | ␉␉␉␉␉␉␊ |
947 | case FDISK_LINUX:␊ |
948 | ␉␉␉␉␉␉bvr = newFDiskBVRef(␊ |
949 | ␉␉␉␉␉␉␉␉␉␉␉biosdev, partno,␊ |
950 | ␉␉␉␉␉␉␉␉␉␉␉part->relsect,␊ |
951 | ␉␉␉␉␉␉␉␉␉␉␉part,␊ |
952 | ␉␉␉␉␉␉␉␉␉␉␉0, 0, 0, 0, 0, 0,␊ |
953 | ␉␉␉␉␉␉␉␉␉␉␉EX2GetDescription,␊ |
954 | ␉␉␉␉␉␉␉␉␉␉␉(BVFree)free,␊ |
955 | ␉␉␉␉␉␉␉␉␉␉␉0, kBIOSDevTypeHardDrive, 0);␊ |
956 | ␉␉␉␉␉␉break;␊ |
957 | #endif␊ |
958 | #ifndef NO_HAIKU_SUPPORT␉␉␉␉␉␉␊ |
959 | ␉␉␉␉␉case FDISK_BEFS:␊ |
960 | ␉␉␉␉␉␉bvr = newFDiskBVRef(␊ |
961 | ␉␉␉␉␉␉␉␉␉␉␉biosdev, partno,␊ |
962 | ␉␉␉␉␉␉␉␉␉␉␉part->relsect,␊ |
963 | ␉␉␉␉␉␉␉␉␉␉␉part,␊ |
964 | ␉␉␉␉␉␉␉␉␉␉␉0, 0, 0, 0, 0, 0,␊ |
965 | ␉␉␉␉␉␉␉␉␉␉␉BeFSGetDescription,␊ |
966 | ␉␉␉␉␉␉␉␉␉␉␉(BVFree)free,␊ |
967 | ␉␉␉␉␉␉␉␉␉␉␉0, kBIOSDevTypeHardDrive, 0);␊ |
968 | ␉␉␉␉␉␉break;␊ |
969 | #endif␊ |
970 | #ifndef NO_OTHERS_BSD_SUPPORT␊ |
971 | ␉␉␉␉␉case FDISK_FREEBSD:␊ |
972 | ␉␉␉␉␉␉bvr = newFDiskBVRef(␊ |
973 | ␉␉␉␉␉␉␉␉␉␉␉biosdev, partno,␊ |
974 | ␉␉␉␉␉␉␉␉␉␉␉part->relsect,␊ |
975 | ␉␉␉␉␉␉␉␉␉␉␉part,␊ |
976 | ␉␉␉␉␉␉␉␉␉␉␉0, 0, 0, 0, 0, 0,␊ |
977 | ␉␉␉␉␉␉␉␉␉␉␉FreeBSDGetDescription,␊ |
978 | ␉␉␉␉␉␉␉␉␉␉␉(BVFree)free,␊ |
979 | ␉␉␉␉␉␉␉␉␉␉␉0, kBIOSDevTypeHardDrive, 0);␊ |
980 | ␉␉␉␉␉␉break;␊ |
981 | ␉␉␉␉␉␉␊ |
982 | case FDISK_OPENBSD:␊ |
983 | ␉␉␉␉␉␉bvr = newFDiskBVRef(␊ |
984 | ␉␉␉␉␉␉␉␉␉␉␉biosdev, partno,␊ |
985 | ␉␉␉␉␉␉␉␉␉␉␉part->relsect,␊ |
986 | ␉␉␉␉␉␉␉␉␉␉␉part,␊ |
987 | ␉␉␉␉␉␉␉␉␉␉␉0, 0, 0, 0, 0, 0,␊ |
988 | ␉␉␉␉␉␉␉␉␉␉␉OpenBSDGetDescription,␊ |
989 | ␉␉␉␉␉␉␉␉␉␉␉(BVFree)free,␊ |
990 | ␉␉␉␉␉␉␉␉␉␉␉0, kBIOSDevTypeHardDrive, 0);␊ |
991 | ␉␉␉␉␉␉break;␊ |
992 | #endif␊ |
993 | default:␊ |
994 | #if UNUSED␊ |
995 | ␉␉␉␉␉␉bvr = newFDiskBVRef(␊ |
996 | ␉␉␉␉␉␉␉␉␉␉␉biosdev, partno,␊ |
997 | ␉␉␉␉␉␉␉␉␉␉␉part->relsect,␊ |
998 | ␉␉␉␉␉␉␉␉␉␉␉part,␊ |
999 | ␉␉␉␉␉␉␉␉␉␉␉0, 0, 0, 0, 0, 0, 0,␊ |
1000 | ␉␉␉␉␉␉␉␉␉␉␉(BVFree)free,␊ |
1001 | ␉␉␉␉␉␉␉␉␉␉␉0,␊ |
1002 | ␉␉␉␉␉␉␉␉␉␉␉kBIOSDevTypeHardDrive, 0);␊ |
1003 | #endif␊ |
1004 | ␉␉␉␉␉␉break;␊ |
1005 | }␊ |
1006 | ␉␉␉␉␊ |
1007 | if ( bvr )␊ |
1008 | {␊ |
1009 | bvr->next = map->bvr;␊ |
1010 | map->bvr = bvr;␊ |
1011 | map->bvrcnt++;␊ |
1012 | }␊ |
1013 | }␊ |
1014 | ␉␉␉␊ |
1015 | #ifdef UFS_SUPPORT␊ |
1016 | // Booting from a CD with an UFS filesystem embedded␊ |
1017 | // in a booter partition.␊ |
1018 | ␉␉␉␊ |
1019 | if ( booterUFS )␊ |
1020 | {␊ |
1021 | if ( map->bvrcnt == 0 )␊ |
1022 | {␊ |
1023 | map->bvr = booterUFS;␊ |
1024 | map->bvrcnt++;␊ |
1025 | }␊ |
1026 | else free( booterUFS );␊ |
1027 | }␊ |
1028 | #endif␊ |
1029 | }␊ |
1030 | } while (0);␊ |
1031 | ␉␊ |
1032 | /*␊ |
1033 | * If no FDisk partition, then we will check for␊ |
1034 | * an Apple partition map elsewhere.␊ |
1035 | */␊ |
1036 | #if UNUSED␊ |
1037 | if (map->bvrcnt == 0) {␊ |
1038 | ␉␉static struct fdisk_part cdpart;␊ |
1039 | ␉␉cdpart.systid = 0xCD;␊ |
1040 | ␉␉␊ |
1041 | ␉␉/* Let's try assuming we are on a hybrid HFS/ISO9660 CD. */␊ |
1042 | ␉␉bvr = newFDiskBVRef(␊ |
1043 | ␉␉␉␉␉␉␉biosdev, 0,␊ |
1044 | ␉␉␉␉␉␉␉0,␊ |
1045 | ␉␉␉␉␉␉␉&cdpart,␊ |
1046 | ␉␉␉␉␉␉␉HFSInitPartition,␊ |
1047 | ␉␉␉␉␉␉␉HFSLoadFile,␊ |
1048 | HFSReadFile,␊ |
1049 | ␉␉␉␉␉␉␉HFSGetDirEntry,␊ |
1050 | HFSGetFileBlock,␊ |
1051 | HFSGetUUID,␊ |
1052 | ␉␉␉␉␉␉␉0,␊ |
1053 | ␉␉␉␉␉␉␉kBIOSDevTypeHardDrive);␊ |
1054 | ␉␉bvr->next = map->bvr;␊ |
1055 | ␉␉map->bvr = bvr;␊ |
1056 | ␉␉map->bvrcnt++;␊ |
1057 | }␊ |
1058 | #endif␊ |
1059 | // Actually this should always be true given the above code␊ |
1060 | if(map == gDiskBVMap)␊ |
1061 | {␊ |
1062 | // Don't leave a null map in the chain␊ |
1063 | if(map->bvrcnt == 0 && map->bvr == NULL)␊ |
1064 | {␊ |
1065 | gDiskBVMap = map->next;␊ |
1066 | free(map);␊ |
1067 | map = NULL;␊ |
1068 | }␊ |
1069 | }␊ |
1070 | ␉␊ |
1071 | if (countPtr) *countPtr = map ? map->bvrcnt : 0;␊ |
1072 | ␉␊ |
1073 | return map ? map->bvr : NULL;␊ |
1074 | }␊ |
1075 | #ifdef APPLE_PARTITION_MAP_SUPPORT␊ |
1076 | //==========================================================================␊ |
1077 | ␊ |
1078 | static BVRef diskScanAPMBootVolumes( int biosdev, int * countPtr )␊ |
1079 | {␊ |
1080 | struct DiskBVMap * map;␊ |
1081 | struct Block0 *block0_p;␊ |
1082 | unsigned int blksize;␊ |
1083 | unsigned int factor;␊ |
1084 | void *buffer = malloc(BPS);␊ |
1085 | ␉␊ |
1086 | /* Check for alternate block size */␊ |
1087 | if (readBytes( biosdev, 0, 0, BPS, buffer ) != 0) {␊ |
1088 | return NULL;␊ |
1089 | }␊ |
1090 | block0_p = buffer;␊ |
1091 | if (OSSwapBigToHostInt16(block0_p->sbSig) == BLOCK0_SIGNATURE) {␊ |
1092 | blksize = OSSwapBigToHostInt16(block0_p->sbBlkSize);␊ |
1093 | if (blksize != BPS) {␊ |
1094 | free(buffer);␊ |
1095 | buffer = malloc(blksize);␊ |
1096 | }␊ |
1097 | factor = blksize / BPS;␊ |
1098 | } else {␊ |
1099 | blksize = BPS;␊ |
1100 | factor = 1;␊ |
1101 | }␊ |
1102 | ␊ |
1103 | do {␊ |
1104 | // Create a new mapping.␊ |
1105 | ␉␉␊ |
1106 | map = (struct DiskBVMap *) malloc( sizeof(*map) );␊ |
1107 | if ( map )␊ |
1108 | {␊ |
1109 | int error;␊ |
1110 | DPME *dpme_p = (DPME *)buffer;␊ |
1111 | UInt32 i, npart = UINT_MAX;␊ |
1112 | BVRef bvr;␊ |
1113 | ␉␉␉␊ |
1114 | map->biosdev = biosdev;␊ |
1115 | map->bvr = NULL;␊ |
1116 | map->bvrcnt = 0;␊ |
1117 | map->next = gDiskBVMap;␊ |
1118 | gDiskBVMap = map;␊ |
1119 | ␉␉␉␊ |
1120 | for (i=0; i<npart; i++) {␊ |
1121 | error = readBytes( biosdev, (kAPMSector + i) * factor, 0, blksize, buffer );␊ |
1122 | ␉␉␉␉␊ |
1123 | if (error || OSSwapBigToHostInt16(dpme_p->dpme_signature) != DPME_SIGNATURE) {␊ |
1124 | break;␊ |
1125 | }␊ |
1126 | ␉␉␉␉␊ |
1127 | if (i==0) {␊ |
1128 | npart = OSSwapBigToHostInt32(dpme_p->dpme_map_entries);␊ |
1129 | }␊ |
1130 | /*␊ |
1131 | ␉␉␉␉ printf("name = %s, %s%s %d -> %d [%d -> %d] {%d}\n",␊ |
1132 | ␉␉␉␉ dpme.dpme_name, dpme.dpme_type, (dpme.dpme_flags & DPME_FLAGS_BOOTABLE) ? "(bootable)" : "",␊ |
1133 | ␉␉␉␉ dpme.dpme_pblock_start, dpme.dpme_pblocks,␊ |
1134 | ␉␉␉␉ dpme.dpme_lblock_start, dpme.dpme_lblocks,␊ |
1135 | ␉␉␉␉ dpme.dpme_boot_block);␊ |
1136 | ␉␉␉␉ */␊ |
1137 | ␉␉␉␉␊ |
1138 | if (strcmp(dpme_p->dpme_type, "Apple_HFS") == 0) {␊ |
1139 | bvr = newAPMBVRef(biosdev,␊ |
1140 | i,␊ |
1141 | OSSwapBigToHostInt32(dpme_p->dpme_pblock_start) * factor,␊ |
1142 | dpme_p,␊ |
1143 | HFSInitPartition,␊ |
1144 | HFSLoadFile,␊ |
1145 | HFSReadFile,␊ |
1146 | HFSGetDirEntry,␊ |
1147 | HFSGetFileBlock,␊ |
1148 | HFSGetUUID,␊ |
1149 | HFSGetDescription,␊ |
1150 | HFSFree,␊ |
1151 | 0,␊ |
1152 | kBIOSDevTypeHardDrive, 0);␊ |
1153 | bvr->next = map->bvr;␊ |
1154 | map->bvr = bvr;␊ |
1155 | map->bvrcnt++;␊ |
1156 | }␊ |
1157 | }␊ |
1158 | }␊ |
1159 | } while (0);␊ |
1160 | ␉␊ |
1161 | free(buffer);␊ |
1162 | ␉␊ |
1163 | if (countPtr) *countPtr = map ? map->bvrcnt : 0;␊ |
1164 | ␉␊ |
1165 | return map ? map->bvr : NULL;␊ |
1166 | }␊ |
1167 | ␊ |
1168 | //==========================================================================␊ |
1169 | #endif ␊ |
1170 | // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -␊ |
1171 | ␊ |
1172 | /*␊ |
1173 | * Trying to figure out the filsystem type of a given partition.␊ |
1174 | */␊ |
1175 | static int probeFileSystem(int biosdev, unsigned int blkoff)␊ |
1176 | {␊ |
1177 | ␉// detected filesystem type;␊ |
1178 | ␉int result = -1;␊ |
1179 | #ifndef NO_WIN_SUPPORT␊ |
1180 | ␉int fatbits;␊ |
1181 | #endif␊ |
1182 | ␊ |
1183 | ␉// Allocating buffer for 4 sectors.␊ |
1184 | ␉const void * probeBuffer = malloc(PROBEFS_SIZE);␊ |
1185 | ␉if (probeBuffer == NULL)␊ |
1186 | ␉␉goto exit;␊ |
1187 | ␉␊ |
1188 | ␉// Reading first 4 sectors of current partition␊ |
1189 | ␉int error = readBytes(biosdev, blkoff, 0, PROBEFS_SIZE, (void *)probeBuffer);␊ |
1190 | ␉if (error)␊ |
1191 | ␉␉goto exit;␊ |
1192 | ␉␊ |
1193 | ␉if (HFSProbe(probeBuffer))␊ |
1194 | ␉␉result = FDISK_HFS;␊ |
1195 | #ifndef NO_LINUX_SUPPORT␊ |
1196 | ␉else if (EX2Probe(probeBuffer))␊ |
1197 | ␉␉result = FDISK_LINUX;␊ |
1198 | #endif␊ |
1199 | #ifndef NO_OTHERS_BSD_SUPPORT␊ |
1200 | ␉else if (FreeBSDProbe(probeBuffer))␊ |
1201 | ␉␉result = FDISK_FREEBSD;␊ |
1202 | ␉else if (OpenBSDProbe(probeBuffer))␊ |
1203 | ␉␉result = FDISK_OPENBSD;␊ |
1204 | #endif␊ |
1205 | #ifndef NO_HAIKU_SUPPORT␊ |
1206 | ␉else if (BeFSProbe(probeBuffer))␊ |
1207 | ␉␉result = FDISK_BEFS;␊ |
1208 | #endif␊ |
1209 | #ifndef NO_WIN_SUPPORT␊ |
1210 | ␉else if (NTFSProbe(probeBuffer))␊ |
1211 | ␉␉result = FDISK_NTFS;␊ |
1212 | ␉else if ((fatbits=MSDOSProbe(probeBuffer)))␊ |
1213 | ␉{␊ |
1214 | ␉␉switch (fatbits)␊ |
1215 | ␉␉{␊ |
1216 | ␉␉␉case 32:␊ |
1217 | ␉␉␉default:␊ |
1218 | ␉␉␉␉result = FDISK_FAT32;␊ |
1219 | ␉␉␉␉break;␊ |
1220 | ␉␉␉case 16:␊ |
1221 | ␉␉␉␉result = FDISK_DOS16B;␊ |
1222 | ␉␉␉␉break;␊ |
1223 | ␉␉␉case 12:␊ |
1224 | ␉␉␉␉result = FDISK_DOS12;␊ |
1225 | ␉␉␉␉break;␉␉␉ ␊ |
1226 | ␉␉}␊ |
1227 | ␉}␊ |
1228 | #endif␊ |
1229 | ␉else␊ |
1230 | ␉␉// Couldn't detect filesystem type␊ |
1231 | ␉␉result = 0;␊ |
1232 | ␉␊ |
1233 | exit:␊ |
1234 | ␉if (probeBuffer != NULL) free((void *)probeBuffer);␊ |
1235 | ␉return result;␊ |
1236 | }␊ |
1237 | ␊ |
1238 | static bool isPartitionUsed(gpt_ent * partition)␊ |
1239 | {␊ |
1240 | //␊ |
1241 | // Ask whether the given partition is used.␊ |
1242 | //␊ |
1243 | ␉␊ |
1244 | return efi_guid_is_null((EFI_GUID const*)partition->ent_type) ? false : true;␊ |
1245 | }␊ |
1246 | ␊ |
1247 | // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -␊ |
1248 | ␊ |
1249 | static BVRef diskScanGPTBootVolumes( int biosdev, int * countPtr )␊ |
1250 | {␊ |
1251 | ␉if (biosdev >= 0x100 && (execute_hook("isRamDiskRegistred", NULL, NULL, NULL, NULL, NULL, NULL) != EFI_SUCCESS)) ␊ |
1252 | ␉␉return NULL;␊ |
1253 | ␉␊ |
1254 | struct DiskBVMap * map = NULL;␊ |
1255 | void *buffer = malloc(BPS);␊ |
1256 | int error;␉␊ |
1257 | if ( (error = readBytes( biosdev, /*secno*/0, 0, BPS, buffer )) != 0) {␊ |
1258 | DBG("Failed to read boot sector from BIOS device %02xh. Error=%d\n", biosdev, error);␊ |
1259 | goto scanErr;␊ |
1260 | }␊ |
1261 | struct REAL_disk_blk0 *fdiskMap = buffer;␊ |
1262 | if ( OSSwapLittleToHostInt16(fdiskMap->signature) != DISK_SIGNATURE )␊ |
1263 | {␊ |
1264 | verbose("Failed to find boot signature on BIOS device %02xh\n", biosdev);␊ |
1265 | goto scanErr;␊ |
1266 | }␊ |
1267 | ␉␊ |
1268 | int fdiskID = 0;␊ |
1269 | unsigned index;␊ |
1270 | for ( index = 0; index < FDISK_NPART; index++ )␊ |
1271 | {␊ |
1272 | if ( fdiskMap->parts[index].systid )␊ |
1273 | {␊ |
1274 | if ( fdiskMap->parts[index].systid == 0xEE )␊ |
1275 | {␊ |
1276 | // Fail if two 0xEE partitions are present which␊ |
1277 | // means the FDISK code will wind up parsing it.␊ |
1278 | if ( fdiskID ) goto scanErr;␊ |
1279 | ␉␉␉␉␊ |
1280 | fdiskID = index + 1;␊ |
1281 | }␊ |
1282 | }␊ |
1283 | }␊ |
1284 | ␉␊ |
1285 | if ( fdiskID == 0 ) goto scanErr;␊ |
1286 | DBG("Attempting to read GPT\n");␊ |
1287 | ␉␊ |
1288 | if(readBytes(biosdev, 1, 0, BPS, buffer) != 0)␊ |
1289 | goto scanErr;␊ |
1290 | ␊ |
1291 | gpt_hdr *headerMap = buffer;␊ |
1292 | ␉␊ |
1293 | // Determine whether the partition header signature is present.␊ |
1294 | ␉␊ |
1295 | if ( memcmp(headerMap->hdr_sig, GPT_HDR_SIG, strlen(GPT_HDR_SIG)) )␊ |
1296 | {␊ |
1297 | goto scanErr;␊ |
1298 | }␊ |
1299 | ␉␊ |
1300 | // Determine whether the partition header size is valid.␊ |
1301 | ␉␊ |
1302 | UInt32 headerCheck = OSSwapLittleToHostInt32(headerMap->hdr_crc_self);␊ |
1303 | UInt32 headerSize = OSSwapLittleToHostInt32(headerMap->hdr_size);␊ |
1304 | ␉␊ |
1305 | if ( headerSize < offsetof(gpt_hdr, padding) )␊ |
1306 | {␊ |
1307 | goto scanErr;␊ |
1308 | }␊ |
1309 | ␉␊ |
1310 | if ( headerSize > BPS )␊ |
1311 | {␊ |
1312 | goto scanErr;␊ |
1313 | }␊ |
1314 | ␉␊ |
1315 | // Determine whether the partition header checksum is valid.␊ |
1316 | ␉␊ |
1317 | headerMap->hdr_crc_self = 0;␊ |
1318 | ␉␊ |
1319 | if ( crc32(0, headerMap, headerSize) != headerCheck )␊ |
1320 | {␊ |
1321 | goto scanErr;␊ |
1322 | }␊ |
1323 | ␉␊ |
1324 | // Determine whether the partition entry size is valid.␊ |
1325 | ␉␊ |
1326 | UInt64 gptBlock = 0;␊ |
1327 | UInt32 gptCheck = 0;␊ |
1328 | UInt32 gptCount = 0;␊ |
1329 | UInt32 gptID = 0;␊ |
1330 | gpt_ent * gptMap = 0;␊ |
1331 | UInt32 gptSize = 0;␊ |
1332 | ␉␊ |
1333 | gptBlock = OSSwapLittleToHostInt64(headerMap->hdr_lba_table);␊ |
1334 | gptCheck = OSSwapLittleToHostInt32(headerMap->hdr_crc_table);␊ |
1335 | gptCount = OSSwapLittleToHostInt32(headerMap->hdr_entries);␊ |
1336 | gptSize = OSSwapLittleToHostInt32(headerMap->hdr_entsz);␊ |
1337 | ␉␊ |
1338 | if ( gptSize < sizeof(gpt_ent) )␊ |
1339 | {␊ |
1340 | goto scanErr;␊ |
1341 | }␊ |
1342 | ␉␊ |
1343 | // Allocate a buffer large enough to hold one map, rounded to a media block.␊ |
1344 | free(buffer);␊ |
1345 | buffer = NULL;␊ |
1346 | ␉␊ |
1347 | UInt32 bufferSize = IORound(gptCount * gptSize, BPS);␊ |
1348 | if(bufferSize == 0)␊ |
1349 | goto scanErr;␊ |
1350 | buffer = malloc(bufferSize);␊ |
1351 | ␉␊ |
1352 | if(readBytes(biosdev, gptBlock, 0, bufferSize, buffer) != 0)␊ |
1353 | goto scanErr;␊ |
1354 | ␉␊ |
1355 | DBG("Read GPT\n");␊ |
1356 | ␉␊ |
1357 | // Allocate a new map for this BIOS device and insert it into the chain␊ |
1358 | map = malloc(sizeof(*map));␊ |
1359 | map->biosdev = biosdev;␊ |
1360 | map->bvr = NULL;␊ |
1361 | map->bvrcnt = 0;␊ |
1362 | map->next = gDiskBVMap;␊ |
1363 | gDiskBVMap = map;␊ |
1364 | ␉␊ |
1365 | // fdisk like partition type id.␊ |
1366 | int fsType = 0;␊ |
1367 | ␊ |
1368 | for(gptID = 1; gptID <= gptCount; ++gptID)␊ |
1369 | {␊ |
1370 | ␉␉BVRef bvr = NULL;␊ |
1371 | ␉␉unsigned int bvrFlags = 0;␊ |
1372 | ␉␉␊ |
1373 | // size on disk can be larger than sizeof(gpt_ent)␊ |
1374 | gptMap = (gpt_ent *) ( buffer + ( (gptID - 1) * gptSize) );␊ |
1375 | ␉␉␊ |
1376 | // NOTE: EFI_GUID's are in LE and we know we're on an x86.␊ |
1377 | // The IOGUIDPartitionScheme.cpp code uses byte-based UUIDs, we don't.␊ |
1378 | ␉␉␊ |
1379 | if(isPartitionUsed(gptMap))␊ |
1380 | {␊ |
1381 | char stringuuid[100];␊ |
1382 | efi_guid_unparse_upper((EFI_GUID*)gptMap->ent_type, stringuuid);␊ |
1383 | verbose("Reading GPT partition %d, type %s\n", gptID, stringuuid);␊ |
1384 | ␉␉␉␊ |
1385 | // Getting fdisk like partition type.␊ |
1386 | fsType = probeFileSystem(biosdev, gptMap->ent_lba_start);␊ |
1387 | ␉␉␉␊ |
1388 | if ( (efi_guid_compare(&GPT_BOOT_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) ||␊ |
1389 | ␉␉␉␉(efi_guid_compare(&GPT_HFS_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) )␊ |
1390 | {␊ |
1391 | #ifdef BOOT_HELPER_SUPPORT␊ |
1392 | bvrFlags = (efi_guid_compare(&GPT_BOOT_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) ? kBVFlagBooter : 0;␊ |
1393 | #else␊ |
1394 | ␉␉␉␉if (efi_guid_compare(&GPT_BOOT_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) ␊ |
1395 | ␉␉␉␉␉continue;␊ |
1396 | ␉␉␉␉else ␊ |
1397 | ␉␉␉␉␉bvrFlags = 0;␊ |
1398 | ␊ |
1399 | #endif␊ |
1400 | bvr = newGPTBVRef(biosdev,␊ |
1401 | ␉␉␉␉␉␉␉␉ gptID,␊ |
1402 | ␉␉␉␉␉␉␉␉ gptMap->ent_lba_start,␊ |
1403 | ␉␉␉␉␉␉␉␉ gptMap,␊ |
1404 | ␉␉␉␉␉␉␉␉ HFSInitPartition,␊ |
1405 | ␉␉␉␉␉␉␉␉ HFSLoadFile,␊ |
1406 | ␉␉␉␉␉␉␉␉ HFSReadFile,␊ |
1407 | ␉␉␉␉␉␉␉␉ HFSGetDirEntry,␊ |
1408 | ␉␉␉␉␉␉␉␉ HFSGetFileBlock,␊ |
1409 | ␉␉␉␉␉␉␉␉ HFSGetUUID,␊ |
1410 | ␉␉␉␉␉␉␉␉ HFSGetDescription,␊ |
1411 | ␉␉␉␉␉␉␉␉ HFSFree,␊ |
1412 | ␉␉␉␉␉␉␉␉ 0,␊ |
1413 | ␉␉␉␉␉␉␉␉ kBIOSDevTypeHardDrive, bvrFlags);␊ |
1414 | }␊ |
1415 | ␉␉␉␊ |
1416 | ␉␉␉// zef - foreign OS support␊ |
1417 | if ( (efi_guid_compare(&GPT_BASICDATA_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) ||␊ |
1418 | ␉␉␉␉(efi_guid_compare(&GPT_BASICDATA2_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) )␊ |
1419 | {␊ |
1420 | ␉␉␉␉␊ |
1421 | ␉␉␉␉switch (fsType)␊ |
1422 | ␉␉␉␉{␊ |
1423 | #ifndef NO_WIN_SUPPORT␊ |
1424 | ␊ |
1425 | ␉␉␉␉␉case FDISK_NTFS:␊ |
1426 | ␉␉␉␉␉␉bvr = newGPTBVRef(biosdev, gptID, gptMap->ent_lba_start, gptMap,␊ |
1427 | ␉␉␉␉␉␉␉␉␉␉ 0, 0, 0, 0, 0, 0, NTFSGetDescription,␊ |
1428 | ␉␉␉␉␉␉␉␉␉␉ (BVFree)free, 0, kBIOSDevTypeHardDrive, 0);␊ |
1429 | ␉␉␉␉␉␉break;␊ |
1430 | #endif␊ |
1431 | ␉␉␉␉␉default:␊ |
1432 | ␉␉␉␉␉␉bvr = newGPTBVRef(biosdev, gptID, gptMap->ent_lba_start, gptMap,␊ |
1433 | ␉␉␉␉␉␉␉␉␉␉ 0, 0, 0, 0, 0, 0, 0,␊ |
1434 | ␉␉␉␉␉␉␉␉␉␉ (BVFree)free, 0, kBIOSDevTypeHardDrive, 0);␊ |
1435 | ␉␉␉␉␉␉break;␊ |
1436 | ␉␉␉␉}␊ |
1437 | ␉␉␉␉␊ |
1438 | }␊ |
1439 | ␉␉␉␊ |
1440 | // turbo - save our booter partition␊ |
1441 | // zef - only on original boot device␊ |
1442 | if ( (efi_guid_compare(&GPT_EFISYS_GUID, (EFI_GUID const*)gptMap->ent_type) == 0) )␊ |
1443 | {␊ |
1444 | ␉␉␉␉switch (fsType)␊ |
1445 | ␉␉␉␉{␊ |
1446 | ␉␉␉␉␉case FDISK_HFS:␊ |
1447 | ␉␉␉␉␉␉if (readBootSector( biosdev, gptMap->ent_lba_start, (void *)0x7e00 ) == 0)␊ |
1448 | ␉␉␉␉␉␉{␊ |
1449 | ␉␉␉␉␉␉␉bvr = newGPTBVRef(biosdev, gptID, gptMap->ent_lba_start, gptMap,␊ |
1450 | ␉␉␉␉␉␉␉␉␉␉␉ HFSInitPartition,␊ |
1451 | ␉␉␉␉␉␉␉␉␉␉␉ HFSLoadFile,␊ |
1452 | ␉␉␉␉␉␉␉␉␉␉␉ HFSReadFile,␊ |
1453 | ␉␉␉␉␉␉␉␉␉␉␉ HFSGetDirEntry,␊ |
1454 | ␉␉␉␉␉␉␉␉␉␉␉ HFSGetFileBlock,␊ |
1455 | ␉␉␉␉␉␉␉␉␉␉␉ HFSGetUUID,␊ |
1456 | ␉␉␉␉␉␉␉␉␉␉␉ HFSGetDescription,␊ |
1457 | ␉␉␉␉␉␉␉␉␉␉␉ HFSFree,␊ |
1458 | ␉␉␉␉␉␉␉␉␉␉␉ 0, kBIOSDevTypeHardDrive, kBVFlagEFISystem);␊ |
1459 | ␉␉␉␉␉␉}␊ |
1460 | ␉␉␉␉␉␉break;␊ |
1461 | #ifndef NO_WIN_SUPPORT␉␉␉␉␉␉␊ |
1462 | ␉␉␉␉␉case FDISK_FAT32:␊ |
1463 | ␉␉␉␉␉␉if (testFAT32EFIBootSector( biosdev, gptMap->ent_lba_start, (void *)0x7e00 ) == 0)␊ |
1464 | ␉␉␉␉␉␉{␊ |
1465 | ␉␉␉␉␉␉␉bvr = newGPTBVRef(biosdev, gptID, gptMap->ent_lba_start, gptMap,␊ |
1466 | ␉␉␉␉␉␉␉␉␉␉␉ MSDOSInitPartition,␊ |
1467 | ␉␉␉␉␉␉␉␉␉␉␉ MSDOSLoadFile,␊ |
1468 | ␉␉␉␉␉␉␉␉␉␉␉ MSDOSReadFile,␊ |
1469 | ␉␉␉␉␉␉␉␉␉␉␉ MSDOSGetDirEntry,␊ |
1470 | ␉␉␉␉␉␉␉␉␉␉␉ MSDOSGetFileBlock,␊ |
1471 | ␉␉␉␉␉␉␉␉␉␉␉ MSDOSGetUUID,␊ |
1472 | ␉␉␉␉␉␉␉␉␉␉␉ MSDOSGetDescription,␊ |
1473 | ␉␉␉␉␉␉␉␉␉␉␉ MSDOSFree,␊ |
1474 | ␉␉␉␉␉␉␉␉␉␉␉ 0, kBIOSDevTypeHardDrive, kBVFlagEFISystem);␊ |
1475 | ␉␉␉␉␉␉}␊ |
1476 | ␉␉␉␉␉␉break;␊ |
1477 | #endif␊ |
1478 | ␉␉␉␉␉default:␉␉␉␉␉␉␊ |
1479 | ␉␉␉␉␉␉if (biosdev == gBIOSDev)␊ |
1480 | ␉␉␉␉␉␉␉gBIOSBootVolume = bvr;␊ |
1481 | ␉␉␉␉␉␉break;␊ |
1482 | ␉␉␉␉}␊ |
1483 | } ␊ |
1484 | ␉␉␉␊ |
1485 | ␉␉␉if (bvr)␊ |
1486 | ␉␉␉{␊ |
1487 | ␉␉␉␉// Fixup bvr with the fake fdisk partition type.␊ |
1488 | ␉␉␉␉if (fsType > 0) bvr->part_type = fsType;␊ |
1489 | ␉␉␉␉␊ |
1490 | ␉␉␉␉bvr->next = map->bvr;␊ |
1491 | ␉␉␉␉map->bvr = bvr;␊ |
1492 | ␉␉␉␉++map->bvrcnt;␊ |
1493 | ␉␉␉}␊ |
1494 | ␉␉␉␊ |
1495 | }␊ |
1496 | }␊ |
1497 | ␉␊ |
1498 | scanErr:␊ |
1499 | free(buffer);␊ |
1500 | ␉␊ |
1501 | if(map)␊ |
1502 | {␊ |
1503 | if(countPtr) *countPtr = map->bvrcnt;␊ |
1504 | return map->bvr;␊ |
1505 | }␊ |
1506 | else␊ |
1507 | {␊ |
1508 | if(countPtr) *countPtr = 0;␊ |
1509 | return NULL;␊ |
1510 | }␊ |
1511 | }␊ |
1512 | ␊ |
1513 | //==========================================================================␊ |
1514 | ␊ |
1515 | static void scanFSLevelBVRSettings(BVRef chain)␊ |
1516 | {␊ |
1517 | ␉BVRef bvr;␊ |
1518 | ␉char dirSpec[512], fileSpec[512];␉␊ |
1519 | ␉int ret;␊ |
1520 | ␉long flags, time;␊ |
1521 | #ifdef BOOT_HELPER_SUPPORT␊ |
1522 | ␉char label[BVSTRLEN];␊ |
1523 | ␉int fh, fileSize, error;␊ |
1524 | #endif␊ |
1525 | ␉for (bvr = chain; bvr; bvr = bvr->next)␊ |
1526 | ␉{␊ |
1527 | ␉␉ret = -1;␊ |
1528 | #ifdef BOOT_HELPER_SUPPORT␊ |
1529 | ␉␉error = 0;␊ |
1530 | ␊ |
1531 | ␉␉//␊ |
1532 | ␉␉// Check for alternate volume label on boot helper partitions.␊ |
1533 | ␉␉//␊ |
1534 | ␉␉if (bvr->flags & kBVFlagBooter)␊ |
1535 | ␉␉{␊ |
1536 | ␉␉␉sprintf(dirSpec, "hd(%d,%d)/System/Library/CoreServices/", BIOS_DEV_UNIT(bvr), bvr->part_no);␊ |
1537 | ␉␉␉strcpy(fileSpec, ".disk_label.contentDetails");␊ |
1538 | ␉␉␉ret = GetFileInfo(dirSpec, fileSpec, &flags, &time);␊ |
1539 | ␉␉␉if (!ret)␊ |
1540 | ␉␉␉{␊ |
1541 | ␉␉␉␉fh = open(strcat(dirSpec, fileSpec));␊ |
1542 | ␉␉␉␉fileSize = file_size(fh);␊ |
1543 | ␉␉␉␉if (fileSize > 0 && fileSize < BVSTRLEN)␊ |
1544 | ␉␉␉␉{␊ |
1545 | ␉␉␉␉␉if (read(fh, label, fileSize) != fileSize)␊ |
1546 | ␉␉␉␉␉␉error = -1;␊ |
1547 | ␉␉␉␉}␊ |
1548 | ␉␉␉␉else␊ |
1549 | ␉␉␉␉␉error = -1;␊ |
1550 | ␉␉␉␉␊ |
1551 | ␉␉␉␉close(fh);␊ |
1552 | ␉␉␉␉␊ |
1553 | ␉␉␉␉if (!error)␊ |
1554 | ␉␉␉␉{␊ |
1555 | ␉␉␉␉␉label[fileSize] = '\0';␊ |
1556 | ␉␉␉␉␉strcpy(bvr->altlabel, label);␊ |
1557 | ␉␉␉␉}␊ |
1558 | ␉␉␉}␊ |
1559 | ␉␉}␊ |
1560 | #endif␊ |
1561 | ␉␉//␊ |
1562 | ␉␉// Check for SystemVersion.plist or ServerVersion.plist␊ |
1563 | ␉␉// to determine if a volume hosts an installed system.␊ |
1564 | ␉␉//␊ |
1565 | ␉␉if (bvr->flags & kBVFlagNativeBoot)␊ |
1566 | ␉␉{␊ |
1567 | ␉␉␉sprintf(dirSpec, "hd(%d,%d)/System/Library/CoreServices/", BIOS_DEV_UNIT(bvr), bvr->part_no);␊ |
1568 | ␉␉␉strcpy(fileSpec, "SystemVersion.plist");␊ |
1569 | ␉␉␉ret = GetFileInfo(dirSpec, fileSpec, &flags, &time);␊ |
1570 | ␉␉␉␊ |
1571 | ␉␉␉if (ret == -1)␊ |
1572 | ␉␉␉{␊ |
1573 | ␉␉␉␉strcpy(fileSpec, "ServerVersion.plist");␊ |
1574 | ␉␉␉␉ret = GetFileInfo(dirSpec, fileSpec, &flags, &time);␊ |
1575 | ␉␉␉}␊ |
1576 | ␉␉␉␊ |
1577 | ␉␉␉if (!ret)␊ |
1578 | ␉␉␉␉bvr->flags |= kBVFlagSystemVolume;␊ |
1579 | ␉␉}␊ |
1580 | ␉␉␊ |
1581 | ␉}␊ |
1582 | }␊ |
1583 | #ifndef OPTION_ROM␊ |
1584 | void rescanBIOSDevice(int biosdev)␊ |
1585 | {␊ |
1586 | ␉struct DiskBVMap *oldMap = diskResetBootVolumes(biosdev);␊ |
1587 | ␉CacheReset();␊ |
1588 | ␉diskFreeMap(oldMap);␊ |
1589 | ␉oldMap = NULL;␊ |
1590 | ␉scanBootVolumes(biosdev, 0);␊ |
1591 | }␊ |
1592 | #endif␊ |
1593 | ␊ |
1594 | struct DiskBVMap* diskResetBootVolumes(int biosdev)␊ |
1595 | {␊ |
1596 | struct DiskBVMap * map;␊ |
1597 | struct DiskBVMap *prevMap = NULL;␊ |
1598 | for ( map = gDiskBVMap; map; prevMap = map, map = map->next ) {␊ |
1599 | if ( biosdev == map->biosdev ) {␊ |
1600 | break;␊ |
1601 | }␊ |
1602 | }␊ |
1603 | if(map != NULL)␊ |
1604 | {␊ |
1605 | verbose("Resetting BIOS device %xh\n", biosdev);␊ |
1606 | // Reset the biosbuf cache␊ |
1607 | cache_valid = false;␊ |
1608 | if(map == gDiskBVMap)␊ |
1609 | gDiskBVMap = map->next;␊ |
1610 | else if(prevMap != NULL)␊ |
1611 | prevMap->next = map->next;␊ |
1612 | else␊ |
1613 | stop("");␊ |
1614 | }␊ |
1615 | // Return the old map, either to be freed, or reinserted later␊ |
1616 | return map;␊ |
1617 | }␊ |
1618 | ␊ |
1619 | // Frees a DiskBVMap and all of its BootVolume's␊ |
1620 | void diskFreeMap(struct DiskBVMap *map)␊ |
1621 | {␊ |
1622 | if(map != NULL)␊ |
1623 | {␊ |
1624 | while(map->bvr != NULL)␊ |
1625 | {␊ |
1626 | BVRef bvr = map->bvr;␊ |
1627 | map->bvr = bvr->next;␊ |
1628 | (*bvr->bv_free)(bvr);␊ |
1629 | }␊ |
1630 | free(map);␊ |
1631 | }␊ |
1632 | }␊ |
1633 | ␊ |
1634 | BVRef diskScanBootVolumes( int biosdev, int * countPtr )␊ |
1635 | {␊ |
1636 | struct DiskBVMap * map;␊ |
1637 | BVRef bvr;␊ |
1638 | int count = 0;␊ |
1639 | ␉␊ |
1640 | // Find an existing mapping for this device.␊ |
1641 | ␉␊ |
1642 | for ( map = gDiskBVMap; map; map = map->next ) {␊ |
1643 | if ( biosdev == map->biosdev ) {␊ |
1644 | count = map->bvrcnt;␊ |
1645 | break;␊ |
1646 | }␊ |
1647 | }␊ |
1648 | ␉␊ |
1649 | if (map == NULL) {␊ |
1650 | bvr = diskScanGPTBootVolumes(biosdev, &count);␊ |
1651 | if (bvr == NULL) {␊ |
1652 | ␉␉␉bvr = diskScanFDiskBootVolumes(biosdev, &count);␊ |
1653 | }␊ |
1654 | #ifdef APPLE_PARTITION_MAP_SUPPORT␊ |
1655 | if (bvr == NULL) {␊ |
1656 | ␉␉␉bvr = diskScanAPMBootVolumes(biosdev, &count);␊ |
1657 | }␊ |
1658 | #endif␊ |
1659 | if (bvr)␊ |
1660 | {␊ |
1661 | ␉␉␉scanFSLevelBVRSettings(bvr);␊ |
1662 | }␊ |
1663 | } else {␊ |
1664 | bvr = map->bvr;␊ |
1665 | }␊ |
1666 | if (countPtr) *countPtr += count;␊ |
1667 | return bvr;␊ |
1668 | }␊ |
1669 | ␊ |
1670 | BVRef getBVChainForBIOSDev(int biosdev)␊ |
1671 | {␊ |
1672 | ␉BVRef chain = NULL;␊ |
1673 | ␉struct DiskBVMap * map = NULL;␊ |
1674 | ␉␊ |
1675 | ␉for (map = gDiskBVMap; map; map = map->next)␊ |
1676 | ␉{␊ |
1677 | ␉␉if (map->biosdev == biosdev)␊ |
1678 | ␉␉{␊ |
1679 | ␉␉␉chain = map->bvr;␊ |
1680 | ␉␉␉break;␊ |
1681 | ␉␉}␊ |
1682 | ␉}␊ |
1683 | ␉␊ |
1684 | ␉return chain;␊ |
1685 | }␊ |
1686 | ␊ |
1687 | BVRef newFilteredBVChain(int minBIOSDev, int maxBIOSDev, unsigned int allowFlags, unsigned int denyFlags, int *count)␊ |
1688 | {␊ |
1689 | ␉BVRef chain = NULL;␊ |
1690 | ␉BVRef bvr = NULL;␊ |
1691 | ␉BVRef newBVR = NULL;␊ |
1692 | ␉BVRef prevBVR = NULL;␊ |
1693 | ␉␊ |
1694 | ␉struct DiskBVMap * map = NULL;␊ |
1695 | ␉int bvCount = 0;␊ |
1696 | ␉␊ |
1697 | ␉const char *raw = 0;␊ |
1698 | ␉char* val = 0;␊ |
1699 | ␉int len;␊ |
1700 | ␊ |
1701 | ␉getValueForKey(kHidePartition, &raw, &len, &bootInfo->bootConfig);␊ |
1702 | ␉if(raw)␊ |
1703 | ␉{␊ |
1704 | ␉␉val = XMLDecode(raw); ␊ |
1705 | ␉}␊ |
1706 | ␉␊ |
1707 | ␉/*␊ |
1708 | ␉ * Traverse gDISKBVmap to get references for␊ |
1709 | ␉ * individual bvr chains of each drive.␊ |
1710 | ␉ */␊ |
1711 | ␉for (map = gDiskBVMap; map; map = map->next)␊ |
1712 | ␉{␊ |
1713 | ␉␉for (bvr = map->bvr; bvr; bvr = bvr->next)␊ |
1714 | ␉␉{␊ |
1715 | ␉␉␉/*␊ |
1716 | ␉␉␉ * Save the last bvr.␊ |
1717 | ␉␉␉ */␊ |
1718 | ␉␉␉if (newBVR) prevBVR = newBVR;␊ |
1719 | ␉␉␉␊ |
1720 | ␉␉␉/*␊ |
1721 | ␉␉␉ * Allocate and copy the matched bvr entry into a new one.␊ |
1722 | ␉␉␉ */␊ |
1723 | ␉␉␉newBVR = (BVRef) malloc(sizeof(*newBVR));␊ |
1724 | ␉␉␉bcopy(bvr, newBVR, sizeof(*newBVR));␊ |
1725 | ␉␉␉␊ |
1726 | ␉␉␉/*␊ |
1727 | ␉␉␉ * Adjust the new bvr's fields.␊ |
1728 | ␉␉␉ */␊ |
1729 | ␉␉␉newBVR->next = NULL;␊ |
1730 | ␉␉␉newBVR->filtered = true;␊ |
1731 | ␉␉␉␊ |
1732 | ␉␉␉if ( (!allowFlags || newBVR->flags & allowFlags)␊ |
1733 | ␉␉␉␉&& (!denyFlags || !(newBVR->flags & denyFlags) )␊ |
1734 | ␉␉␉␉&& (newBVR->biosdev >= minBIOSDev && newBVR->biosdev <= maxBIOSDev)␊ |
1735 | ␉␉␉␉)␊ |
1736 | ␉␉␉␉newBVR->visible = true;␊ |
1737 | ␉␉␉␊ |
1738 | ␉␉␉/* Looking for "Hide Partition" entries in 'hd(x,y)|uuid|"label" hd(m,n)|uuid|"label"' format␊ |
1739 | ␉␉␉ * to be able to hide foreign partitions from the boot menu.␊ |
1740 | ␉␉␉ */␊ |
1741 | ␉␉␉if ( (newBVR->flags & kBVFlagForeignBoot) )␊ |
1742 | ␉␉␉{␊ |
1743 | ␉␉␉␉char *start, *next = val;␊ |
1744 | ␉␉␉␉long len = 0; ␊ |
1745 | ␉␉␉␉do␊ |
1746 | ␉␉␉␉{␊ |
1747 | ␉␉␉␉␉start = strbreak(next, &next, &len);␊ |
1748 | ␉␉␉␉␉if(len && matchVolumeToString(newBVR, start, len) )␊ |
1749 | ␉␉␉␉␉␉newBVR->visible = false;␊ |
1750 | ␉␉␉␉}␊ |
1751 | ␉␉␉␉while ( next && *next );␊ |
1752 | ␉␉␉}␊ |
1753 | ␉␉␉␊ |
1754 | ␉␉␉/*␊ |
1755 | ␉␉␉ * Use the first bvr entry as the starting chain pointer.␊ |
1756 | ␉␉␉ */␊ |
1757 | ␉␉␉if (!chain)␊ |
1758 | ␉␉␉␉chain = newBVR;␊ |
1759 | ␉␉␉␊ |
1760 | ␉␉␉/*␊ |
1761 | ␉␉␉ * Update the previous bvr's link pointer to use the new memory area.␊ |
1762 | ␉␉␉ */␊ |
1763 | ␉␉␉if (prevBVR)␊ |
1764 | ␉␉␉␉prevBVR->next = newBVR;␊ |
1765 | ␉␉␉␊ |
1766 | ␉␉␉if (newBVR->visible)␊ |
1767 | ␉␉␉␉bvCount++;␊ |
1768 | ␉␉}␊ |
1769 | ␉}␊ |
1770 | ␉␊ |
1771 | #if DEBUG␊ |
1772 | ␉for (bvr = chain; bvr; bvr = bvr->next)␊ |
1773 | ␉{␊ |
1774 | ␉␉printf(" bvr: %d, dev: %d, part: %d, flags: %d, vis: %d\n", bvr, bvr->biosdev, bvr->part_no, bvr->flags, bvr->visible);␊ |
1775 | ␉}␊ |
1776 | ␉printf("count: %d\n", bvCount);␊ |
1777 | ␉getc();␊ |
1778 | #endif␊ |
1779 | ␉␊ |
1780 | ␉*count = bvCount;␊ |
1781 | ␉␊ |
1782 | ␉free(val); ␊ |
1783 | ␉return chain;␊ |
1784 | }␊ |
1785 | ␊ |
1786 | int freeFilteredBVChain(const BVRef chain)␊ |
1787 | {␊ |
1788 | ␉int ret = 1;␊ |
1789 | ␉BVRef bvr = chain;␊ |
1790 | ␉BVRef nextBVR = NULL;␊ |
1791 | ␉␊ |
1792 | ␉while (bvr)␊ |
1793 | ␉{␊ |
1794 | ␉␉nextBVR = bvr->next;␊ |
1795 | ␉␉␊ |
1796 | ␉␉if (bvr->filtered)␊ |
1797 | ␉␉{␊ |
1798 | ␉␉␉free(bvr);␊ |
1799 | ␉␉}␊ |
1800 | ␉␉else␊ |
1801 | ␉␉{␊ |
1802 | ␉␉␉ret = 0;␊ |
1803 | ␉␉␉break;␊ |
1804 | ␉␉}␊ |
1805 | ␉␉␊ |
1806 | ␉␉bvr = nextBVR;␊ |
1807 | ␉}␊ |
1808 | ␉␊ |
1809 | ␉return ret;␊ |
1810 | }␊ |
1811 | ␊ |
1812 | //==========================================================================␊ |
1813 | ␊ |
1814 | static const struct NamedValue fdiskTypes[] =␊ |
1815 | {␊ |
1816 | #ifndef NO_WIN_SUPPORT␊ |
1817 | { FDISK_NTFS, "Windows NTFS" },␊ |
1818 | ␉{ FDISK_DOS12, "Windows FAT12" },␊ |
1819 | ␉{ FDISK_DOS16B, "Windows FAT16" },␊ |
1820 | ␉{ FDISK_DOS16S, "Windows FAT16" },␊ |
1821 | ␉{ FDISK_DOS16SLBA, "Windows FAT16" },␊ |
1822 | ␉{ FDISK_SMALLFAT32, "Windows FAT32" },␊ |
1823 | ␉{ FDISK_FAT32, "Windows FAT32" },␊ |
1824 | #endif␊ |
1825 | #ifndef NO_OTHERS_BSD_SUPPORT␊ |
1826 | ␉{ FDISK_FREEBSD, "FreeBSD" },␊ |
1827 | { FDISK_OPENBSD, "OpenBSD" },␊ |
1828 | #endif␊ |
1829 | #ifndef NO_LINUX_SUPPORT␊ |
1830 | { FDISK_LINUX, "Linux" },␊ |
1831 | #endif␊ |
1832 | #ifdef UFS_SUPPORT␊ |
1833 | { FDISK_UFS, "Apple UFS" },␊ |
1834 | #endif␊ |
1835 | { FDISK_HFS, "Apple HFS" },␊ |
1836 | { FDISK_BOOTER, "Apple Boot/UFS" },␊ |
1837 | #ifndef NO_HAIKU_SUPPORT␊ |
1838 | ␉{ FDISK_BEFS, "Haiku" },␊ |
1839 | #endif␊ |
1840 | { 0xCD, "CD-ROM" },␊ |
1841 | { 0x00, 0 } /* must be last */␊ |
1842 | };␊ |
1843 | ␊ |
1844 | //==========================================================================␊ |
1845 | ␊ |
1846 | bool matchVolumeToString( BVRef bvr, const char* match, long matchLen)␊ |
1847 | {␊ |
1848 | ␉char testStr[128];␊ |
1849 | ␉␊ |
1850 | ␉if ( !bvr || !match || !*match)␊ |
1851 | ␉␉return 0;␊ |
1852 | ␉␊ |
1853 | ␉if ( bvr->biosdev < 0x80 || bvr->biosdev >= 0x100 )␊ |
1854 | return 0;␊ |
1855 | ␊ |
1856 | // Try to match hd(x,y) first.␊ |
1857 | sprintf(testStr, "hd(%d,%d)", BIOS_DEV_UNIT(bvr), bvr->part_no);␊ |
1858 | if ( matchLen ? !strncmp(match, testStr, matchLen) : !strcmp(match, testStr) )␊ |
1859 | return true;␊ |
1860 | ␊ |
1861 | // Try to match volume UUID.␊ |
1862 | if ( bvr->fs_getuuid && bvr->fs_getuuid(bvr, testStr) == 0)␊ |
1863 | {␊ |
1864 | if( matchLen ? !strncmp(match, testStr, matchLen) : !strcmp(match, testStr) )␊ |
1865 | return true;␊ |
1866 | }␊ |
1867 | ␊ |
1868 | // Try to match volume label (always quoted).␊ |
1869 | if ( bvr->description )␊ |
1870 | {␊ |
1871 | bvr->description(bvr, testStr, sizeof(testStr)-1);␊ |
1872 | if( matchLen ? !strncmp(match, testStr, matchLen) : !strcmp(match, testStr) )␊ |
1873 | return true;␊ |
1874 | }␊ |
1875 | ␊ |
1876 | return false;␊ |
1877 | }␊ |
1878 | ␊ |
1879 | /* If Rename Partition has defined an alias, then extract it for description purpose␊ |
1880 | * The format for the rename string is the following:␊ |
1881 | * hd(x,y)|uuid|"label" "alias";hd(m,n)|uuid|"label" etc; ...␊ |
1882 | */␊ |
1883 | ␊ |
1884 | bool getVolumeLabelAlias(BVRef bvr, char* str, long strMaxLen)␊ |
1885 | {␊ |
1886 | char *aliasList, *entryStart, *entryNext;␊ |
1887 | ␊ |
1888 | if ( !str || strMaxLen <= 0)␊ |
1889 | return false;␊ |
1890 | ␊ |
1891 | aliasList = XMLDecode(getStringForKey(kRenamePartition, &bootInfo->bootConfig));␊ |
1892 | if ( !aliasList )␊ |
1893 | return false;␊ |
1894 | ␊ |
1895 | for ( entryStart = entryNext = aliasList;␊ |
1896 | ␉␉ entryNext && *entryNext;␊ |
1897 | ␉␉ entryStart = entryNext )␊ |
1898 | {␊ |
1899 | char *volStart, *volEnd, *aliasStart;␊ |
1900 | long volLen, aliasLen;␊ |
1901 | ␊ |
1902 | // Delimit current entry␊ |
1903 | entryNext = strchr(entryStart, ';');␊ |
1904 | if ( entryNext )␊ |
1905 | {␊ |
1906 | *entryNext = '\0';␊ |
1907 | entryNext++;␊ |
1908 | }␊ |
1909 | ␊ |
1910 | volStart = strbreak(entryStart, &volEnd, &volLen);␊ |
1911 | if(!volLen)␊ |
1912 | continue;␊ |
1913 | ␊ |
1914 | aliasStart = strbreak(volEnd, 0, &aliasLen);␊ |
1915 | if(!aliasLen)␊ |
1916 | continue;␊ |
1917 | ␊ |
1918 | if ( matchVolumeToString(bvr, volStart, volLen) )␊ |
1919 | { ␊ |
1920 | strncat(str, aliasStart, min(strMaxLen, aliasLen));␊ |
1921 | free(aliasList);␊ |
1922 | ␉␉␉␊ |
1923 | return true;␊ |
1924 | }␊ |
1925 | }␊ |
1926 | ␊ |
1927 | free(aliasList);␊ |
1928 | return false;␊ |
1929 | }␊ |
1930 | ␊ |
1931 | void getBootVolumeDescription( BVRef bvr, char * str, long strMaxLen, bool useDeviceDescription )␊ |
1932 | {␊ |
1933 | unsigned char type;␊ |
1934 | char *p = str;␊ |
1935 | ␊ |
1936 | if(!bvr || !p || strMaxLen <= 0)␊ |
1937 | return;␊ |
1938 | ␊ |
1939 | type = (unsigned char) bvr->part_type;␊ |
1940 | ␉␊ |
1941 | if (useDeviceDescription)␊ |
1942 | {␊ |
1943 | int len = getDeviceDescription(bvr, str);␊ |
1944 | if(len >= strMaxLen)␊ |
1945 | return;␊ |
1946 | ␊ |
1947 | strcpy(str + len, " ");␊ |
1948 | len++;␊ |
1949 | strMaxLen -= len;␊ |
1950 | p += len;␊ |
1951 | }␊ |
1952 | ␉␊ |
1953 | /* See if a partition rename is preferred */␊ |
1954 | if(getVolumeLabelAlias(bvr, p, strMaxLen)) {␊ |
1955 | strncpy(bvr->label, p, strMaxLen); ␊ |
1956 | return; // we're done here no need to seek for real name␊ |
1957 | }␊ |
1958 | ␉␊ |
1959 | //␊ |
1960 | // Get the volume label using filesystem specific functions␊ |
1961 | // or use the alternate volume label if available.␊ |
1962 | //␊ |
1963 | ␉if (*bvr->altlabel != '\0')␊ |
1964 | strncpy(p, bvr->altlabel, strMaxLen);␊ |
1965 | ␉else if (bvr->description)␊ |
1966 | bvr->description(bvr, p, strMaxLen);␊ |
1967 | ␉␊ |
1968 | if (*p == '\0') {␊ |
1969 | const char * name = getNameForValue( fdiskTypes, type );␊ |
1970 | if (name == NULL) {␊ |
1971 | name = bvr->type_name;␊ |
1972 | }␊ |
1973 | if (name == NULL) {␊ |
1974 | sprintf(p, "TYPE %02x", type);␊ |
1975 | } else {␊ |
1976 | strncpy(p, name, strMaxLen);␊ |
1977 | }␊ |
1978 | }␊ |
1979 | ␊ |
1980 | // Set the devices label␊ |
1981 | sprintf(bvr->label, p);␊ |
1982 | }␊ |
1983 | ␊ |
1984 | //==========================================================================␊ |
1985 | int readBootSector( int biosdev, unsigned int secno, void * buffer )␊ |
1986 | {␊ |
1987 | struct disk_blk0 * bootSector = (struct disk_blk0 *) buffer;␊ |
1988 | int error;␊ |
1989 | ␉␊ |
1990 | if ( bootSector == NULL )␊ |
1991 | {␊ |
1992 | if ( gBootSector == NULL )␊ |
1993 | {␊ |
1994 | gBootSector = (struct disk_blk0 *) malloc(sizeof(*gBootSector));␊ |
1995 | if ( gBootSector == NULL ) return -1;␊ |
1996 | }␊ |
1997 | bootSector = gBootSector;␊ |
1998 | }␊ |
1999 | ␉␊ |
2000 | error = readBytes( biosdev, secno, 0, BPS, bootSector );␊ |
2001 | if ( error || bootSector->signature != DISK_SIGNATURE )␊ |
2002 | return -1;␊ |
2003 | ␉␊ |
2004 | return 0;␊ |
2005 | }␊ |
2006 | ␊ |
2007 | #ifndef NO_WIN_SUPPORT␊ |
2008 | /*␊ |
2009 | * Format of boot1f32 block.␊ |
2010 | */␊ |
2011 | ␊ |
2012 | #define BOOT1F32_MAGIC "BOOT "␊ |
2013 | #define BOOT1F32_MAGICLEN 11␊ |
2014 | ␊ |
2015 | struct disk_boot1f32_blk {␊ |
2016 | unsigned char init[3];␊ |
2017 | unsigned char fsheader[87];␊ |
2018 | unsigned char magic[BOOT1F32_MAGICLEN];␊ |
2019 | unsigned char bootcode[409];␊ |
2020 | unsigned short signature;␊ |
2021 | };␊ |
2022 | ␊ |
2023 | int testFAT32EFIBootSector( int biosdev, unsigned int secno, void * buffer )␊ |
2024 | {␊ |
2025 | struct disk_boot1f32_blk * bootSector = (struct disk_boot1f32_blk *) buffer;␊ |
2026 | int error;␊ |
2027 | ␉␊ |
2028 | if ( bootSector == NULL )␊ |
2029 | {␊ |
2030 | if ( gBootSector == NULL )␊ |
2031 | {␊ |
2032 | gBootSector = (struct disk_blk0 *) malloc(sizeof(*gBootSector));␊ |
2033 | if ( gBootSector == NULL ) return -1;␊ |
2034 | }␊ |
2035 | bootSector = (struct disk_boot1f32_blk *) gBootSector;␊ |
2036 | }␊ |
2037 | ␉␊ |
2038 | error = readBytes( biosdev, secno, 0, BPS, bootSector );␊ |
2039 | if ( error || bootSector->signature != DISK_SIGNATURE␊ |
2040 | ␉␉|| strncmp((const char *)bootSector->magic, BOOT1F32_MAGIC, BOOT1F32_MAGICLEN) )␊ |
2041 | ␉␉return -1;␊ |
2042 | ␉␊ |
2043 | return 0;␊ |
2044 | }␊ |
2045 | #endif␊ |
2046 | //==========================================================================␊ |
2047 | // Handle seek request from filesystem modules.␊ |
2048 | ␊ |
2049 | void diskSeek( BVRef bvr, long long position )␊ |
2050 | {␊ |
2051 | bvr->fs_boff = position / BPS;␊ |
2052 | bvr->fs_byteoff = position % BPS;␊ |
2053 | }␊ |
2054 | ␊ |
2055 | //==========================================================================␊ |
2056 | // Handle read request from filesystem modules.␊ |
2057 | ␊ |
2058 | int diskRead( BVRef bvr, long addr, long length )␊ |
2059 | {␊ |
2060 | return readBytes( bvr->biosdev,␊ |
2061 | ␉␉␉␉␉ bvr->fs_boff + bvr->part_boff,␊ |
2062 | ␉␉␉␉␉ bvr->fs_byteoff,␊ |
2063 | ␉␉␉␉␉ length,␊ |
2064 | ␉␉␉␉␉ (void *) addr );␊ |
2065 | }␊ |
2066 | ␊ |
2067 | #if UNUSED␊ |
2068 | int rawDiskRead( BVRef bvr, unsigned int secno, void *buffer, unsigned int len )␊ |
2069 | {␊ |
2070 | int secs;␊ |
2071 | unsigned char *cbuf = (unsigned char *)buffer;␊ |
2072 | unsigned int copy_len;␊ |
2073 | int rc;␊ |
2074 | ␉␊ |
2075 | if ((len & (BPS-1)) != 0) {␊ |
2076 | error("raw disk read not sector aligned");␊ |
2077 | return -1;␊ |
2078 | }␊ |
2079 | secno += bvr->part_boff;␊ |
2080 | ␉␊ |
2081 | cache_valid = false;␊ |
2082 | ␉␊ |
2083 | while (len > 0) {␊ |
2084 | secs = len / BPS;␊ |
2085 | if (secs > N_CACHE_SECS) secs = N_CACHE_SECS;␊ |
2086 | copy_len = secs * BPS;␊ |
2087 | ␉␉␊ |
2088 | //printf("rdr: ebiosread(%d, %d, %d)\n", bvr->biosdev, secno, secs);␊ |
2089 | if ((rc = ebiosread(bvr->biosdev, secno, secs)) != 0) {␊ |
2090 | /* Ignore corrected ECC errors */␊ |
2091 | if (rc != ECC_CORRECTED_ERR) {␊ |
2092 | error(" EBIOS read error: %s\n", bios_error(rc), rc);␊ |
2093 | error(" Block %d Sectors %d\n", secno, secs);␊ |
2094 | return rc;␊ |
2095 | }␊ |
2096 | }␊ |
2097 | bcopy( trackbuf, cbuf, copy_len );␊ |
2098 | len -= copy_len;␊ |
2099 | cbuf += copy_len;␊ |
2100 | secno += secs;␊ |
2101 | #if TEXT_SPINNER␊ |
2102 | ␉␉spinActivityIndicator(secs);␊ |
2103 | #endif␊ |
2104 | }␊ |
2105 | ␉␊ |
2106 | return 0;␊ |
2107 | }␊ |
2108 | ␊ |
2109 | int rawDiskWrite( BVRef bvr, unsigned int secno, void *buffer, unsigned int len )␊ |
2110 | {␊ |
2111 | int secs;␊ |
2112 | unsigned char *cbuf = (unsigned char *)buffer;␊ |
2113 | unsigned int copy_len;␊ |
2114 | int rc;␊ |
2115 | ␉␊ |
2116 | if ((len & (BPS-1)) != 0) {␊ |
2117 | error("raw disk write not sector aligned");␊ |
2118 | return -1;␊ |
2119 | }␊ |
2120 | secno += bvr->part_boff;␊ |
2121 | ␉␊ |
2122 | cache_valid = false;␊ |
2123 | ␉␊ |
2124 | while (len > 0) {␊ |
2125 | secs = len / BPS;␊ |
2126 | if (secs > N_CACHE_SECS) secs = N_CACHE_SECS;␊ |
2127 | copy_len = secs * BPS;␊ |
2128 | ␉␉␊ |
2129 | bcopy( cbuf, trackbuf, copy_len );␊ |
2130 | //printf("rdr: ebioswrite(%d, %d, %d)\n", bvr->biosdev, secno, secs);␊ |
2131 | if ((rc = ebioswrite(bvr->biosdev, secno, secs)) != 0) {␊ |
2132 | error(" EBIOS write error: %s\n", bios_error(rc), rc);␊ |
2133 | error(" Block %d Sectors %d\n", secno, secs);␊ |
2134 | return rc;␊ |
2135 | }␊ |
2136 | len -= copy_len;␊ |
2137 | cbuf += copy_len;␊ |
2138 | secno += secs;␊ |
2139 | #if TEXT_SPINNER␊ |
2140 | ␉␉spinActivityIndicator(secs);␊ |
2141 | #endif␊ |
2142 | }␊ |
2143 | ␉␊ |
2144 | return 0;␊ |
2145 | }␊ |
2146 | #endif␊ |
2147 | ␊ |
2148 | int diskIsCDROM(BVRef bvr)␊ |
2149 | {␊ |
2150 | struct driveInfo di;␊ |
2151 | ␉␊ |
2152 | if (getDriveInfo(bvr->biosdev, &di) == 0 && di.no_emulation) {␊ |
2153 | ␉␉return 1;␊ |
2154 | }␊ |
2155 | return 0;␊ |
2156 | }␊ |
2157 | ␊ |
2158 | int biosDevIsCDROM(int biosdev)␊ |
2159 | {␊ |
2160 | struct driveInfo di;␊ |
2161 | ␉␊ |
2162 | if (getDriveInfo(biosdev, &di) == 0 && di.no_emulation)␊ |
2163 | {␊ |
2164 | ␉return 1;␊ |
2165 | }␊ |
2166 | return 0;␊ |
2167 | }␊ |
2168 | |