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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 * drivers.c - Driver Loading Functions.␊
26 *␊
27 * Copyright (c) 2000 Apple Computer, Inc.␊
28 *␊
29 * DRI: Josh de Cesare␊
30 */␊
31␊
32#include <mach-o/fat.h>␊
33#include <libkern/OSByteOrder.h>␊
34#include <mach/machine.h>␊
35␊
36#include "sl.h"␊
37#include "boot.h"␊
38#include "bootstruct.h"␊
39#include "platform.h"␊
40#include "xml.h"␊
41#include "drivers.h"␊
42#include "modules.h"␊
43␊
44struct Module { ␊
45␉struct Module *nextModule;␊
46␉long willLoad;␊
47␉TagPtr dict;␊
48␉char *plistAddr;␊
49␉long plistLength;␊
50␉char *executablePath;␊
51␉char *bundlePath;␊
52␉long bundlePathLength;␊
53};␊
54typedef struct Module Module, *ModulePtr;␊
55␊
56struct DriverInfo {␊
57␉char *plistAddr;␊
58␉long plistLength;␊
59␉void *executableAddr;␊
60␉long executableLength;␊
61␉void *bundlePathAddr;␊
62␉long bundlePathLength;␊
63};␊
64typedef struct DriverInfo DriverInfo, *DriverInfoPtr;␊
65␊
66#define kDriverPackageSignature1 'MKXT'␊
67#define kDriverPackageSignature2 'MOSX'␊
68␊
69struct DriversPackage {␊
70␉unsigned long signature1;␊
71␉unsigned long signature2;␊
72␉unsigned long length;␊
73␉unsigned long alder32;␊
74␉unsigned long version;␊
75␉unsigned long numDrivers;␊
76␉unsigned long reserved1;␊
77␉unsigned long reserved2;␊
78};␊
79typedef struct DriversPackage DriversPackage;␊
80␊
81enum {␊
82␉kCFBundleType2,␊
83␉kCFBundleType3␊
84};␊
85␊
86static ModulePtr gModuleHead, gModuleTail;␊
87static TagPtr gPersonalityHead, gPersonalityTail;␊
88static char * gExtensionsSpec;␊
89static char * gDriverSpec;␊
90static char * gFileSpec;␊
91static char * gTempSpec;␊
92static char * gFileName;␊
93␊
94long InitDriverSupport(void);␊
95long FileLoadDrivers(char *dirSpec, long plugin);␊
96long LoadDriverMKext(char *fileSpec);␊
97long LoadDriverPList(char *dirSpec, char *name, long bundleType);␊
98long LoadMatchedModules(void);␊
99long MatchLibraries(void);␊
100#if UNUSED␊
101long MatchPersonalities(void);␊
102#endif␊
103#ifdef NBP_SUPPORT␊
104long NetLoadDrivers(char *dirSpec);␊
105#endif␊
106␊
107static long FileLoadMKext( const char * dirSpec, const char * extDirSpec );␊
108static long ParseXML(char *buffer, ModulePtr *module, TagPtr *personalities);␊
109#if UNUSED␊
110static ModulePtr FindModule( char * name );␊
111#endif␊
112␊
113//==========================================================================␊
114// InitDriverSupport␊
115␊
116long␊
117InitDriverSupport( void )␊
118{␊
119 static bool DriverSet = false;␊
120 ␊
121 if (DriverSet == true) return 0; ␊
122 ␊
123 gExtensionsSpec = malloc( 4096 );␊
124 gDriverSpec = malloc( 4096 );␊
125 gFileSpec = malloc( 4096 );␊
126 gTempSpec = malloc( 4096 );␊
127 gFileName = malloc( 4096 );␉␊
128 ␊
129 if ( !gExtensionsSpec || !gDriverSpec || !gFileSpec || !gTempSpec || !gFileName )␊
130 stop("InitDriverSupport error");␊
131 ␊
132 DriverSet = true;␊
133 set_env(envDriverExtSpec,(uint32_t)gExtensionsSpec);␊
134 set_env(envDriverSpec,(uint32_t)gDriverSpec);␊
135 set_env(envDriverFileSpec,(uint32_t)gFileSpec);␊
136 set_env(envDriverTempSpec,(uint32_t)gTempSpec);␊
137 set_env(envDriverFileName,(uint32_t)gFileName);␊
138 ␊
139 return 0;␊
140}␊
141␊
142//==========================================================================␊
143// LoadDrivers␊
144␊
145long LoadDrivers( char * dirSpec )␊
146{␉␊
147 char dirSpecExtra[1024];␊
148␉␊
149 if ( InitDriverSupport() != 0 )␊
150 return 0;␊
151␉␊
152␉␊
153␉␊
154 // Load extra drivers if a hook has been installed.␊
155 ␊
156␉int step = 0;␊
157␉execute_hook("ramDiskLoadDrivers", &step, NULL, NULL, NULL, NULL, NULL);␊
158#ifdef NBP_SUPPORT␉␊
159 if ( gBootFileType == kNetworkDeviceType )␊
160 {␊
161 if (NetLoadDrivers(dirSpec) != 0) {␊
162 error("Could not load drivers from the network\n");␊
163 return -1;␊
164 }␊
165 }␊
166 else␊
167#endif␊
168␉␉if ( gBootFileType == kBlockDeviceType )␊
169␉␉{␊
170␉␉␉// First try to load Extra extensions from the ramdisk if isn't aliased as bt(0,0).␊
171#ifndef OPTION_ROM␊
172␉␉␉// First try a specfic OS version folder ie 10.5␊
173␉␉␉␊
174␉␉␉step = 1;␊
175␉␉␉execute_hook("ramDiskLoadDrivers", &step, NULL, NULL, NULL, NULL, NULL);␊
176␉␉␉␊
177#endif␊
178␉␉␉␊
179␉␉␉// First try a specfic OS version folder ie 10.5␊
180␉␉␉sprintf(dirSpecExtra, "/Extra/%s/", (char*)gBootVolume->OSVersion);␊
181␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0)␊
182␉␉␉{␉␊
183␉␉␉␉// Next try to load Extra extensions from the selected root partition.␊
184␉␉␉␉strcpy(dirSpecExtra, "/Extra/");␊
185␉␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0)␊
186␉␉␉␉{␊
187␉␉␉␉␉// If failed, then try to load Extra extensions from the boot partition␊
188␉␉␉␉␉// in case we have a separate booter partition or a bt(0,0) aliased ramdisk.␊
189␉␉␉␉␉if (!(gBIOSBootVolume->biosdev == gBootVolume->biosdev && gBIOSBootVolume->part_no == gBootVolume->part_no))␊
190␉␉␉␉␉{␊
191␉␉␉␉␉␉// First try a specfic OS version folder ie 10.5␊
192␉␉␉␉␉␉sprintf(dirSpecExtra, "bt(0,0)/Extra/%s/", (char*)gBootVolume->OSVersion);␊
193␉␉␉␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0)␊
194␉␉␉␉␉␉{␉␊
195␉␉␉␉␉␉␉// Next we'll try the base␊
196␉␉␉␉␉␉␉strcpy(dirSpecExtra, "bt(0,0)/Extra/");␊
197␉␉␉␉␉␉␉FileLoadDrivers(dirSpecExtra, 0);␊
198␉␉␉␉␉␉}␊
199␉␉␉␉␉}␊
200#ifndef OPTION_ROM␊
201␉␉␉␉␉step = 2;␊
202␉␉␉␉␉execute_hook("ramDiskLoadDrivers", &step, NULL, NULL, NULL, NULL, NULL);␊
203#endif␊
204␉␉␉␉}␊
205␉␉␉␉␊
206␉␉␉}␉␊
207#ifdef BOOT_HELPER_SUPPORT␊
208␉␉␉// TODO: fix this, the order does matter, and it's not correct now.␊
209␉␉␉// Also try to load Extensions from boot helper partitions.␊
210␉␉␉if (gBootVolume->flags & kBVFlagBooter)␊
211␉␉␉{␊
212␉␉␉␉strcpy(dirSpecExtra, "/com.apple.boot.P/System/Library/");␊
213␉␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0)␊
214␉␉␉␉{␊
215␉␉␉␉␉strcpy(dirSpecExtra, "/com.apple.boot.R/System/Library/");␊
216␉␉␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0)␊
217␉␉␉␉␉{␊
218␉␉␉␉␉␉strcpy(dirSpecExtra, "/com.apple.boot.S/System/Library/");␊
219␉␉␉␉␉␉FileLoadDrivers(dirSpecExtra, 0);␊
220␉␉␉␉␉}␊
221␉␉␉␉}␊
222␉␉␉}␊
223#endif␊
224␉␉␉char * MKextName = (char*)(uint32_t)get_env(envMKextName);␊
225␉␉␉if (MKextName[0] != '\0')␊
226␉␉␉{␊
227␉␉␉␉verbose("LoadDrivers: Loading from [%s]\n", MKextName);␊
228␉␉␉␉if ( LoadDriverMKext(MKextName) != 0 )␊
229␉␉␉␉{␊
230␉␉␉␉␉error("Could not load %s\n", MKextName);␊
231␉␉␉␉␉return -1;␊
232␉␉␉␉}␊
233␉␉␉}␊
234␉␉␉else␊
235␉␉␉{␊
236␉␉␉␉strcpy(gExtensionsSpec, dirSpec);␊
237␉␉␉␉strcat(gExtensionsSpec, "System/Library/");␊
238␉␉␉␉FileLoadDrivers(gExtensionsSpec, 0);␊
239␉␉␉}␊
240␉␉}␊
241␉␉else␊
242␉␉{␊
243␉␉␉return 0;␊
244␉␉}␊
245#if UNUSED␊
246 MatchPersonalities();␊
247#endif␊
248␉␊
249 MatchLibraries();␊
250␉␊
251 LoadMatchedModules();␊
252␉␊
253 return 0;␊
254}␊
255␊
256//==========================================================================␊
257// FileLoadMKext␊
258␊
259static long␊
260FileLoadMKext( const char * dirSpec, const char * extDirSpec )␊
261{␊
262␉long ret, flags, time, time2;␊
263␉char altDirSpec[512];␊
264␉␊
265␉sprintf (altDirSpec, "%s%s", dirSpec, extDirSpec);␊
266␉ret = GetFileInfo(altDirSpec, "Extensions.mkext", &flags, &time);␊
267␉if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeFlat))␊
268␉{␊
269␉␉ret = GetFileInfo(dirSpec, "Extensions", &flags, &time2);␊
270␉␉if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeDirectory) ||␊
271␉␉␉(((get_env(envgBootMode) & kBootModeSafe) == 0) && (time == (time2 + 1))))␊
272␉␉{␊
273␉␉␉sprintf(gDriverSpec, "%sExtensions.mkext", altDirSpec);␊
274␉␉␉verbose("LoadDrivers: Loading from [%s]\n", gDriverSpec);␊
275␉␉␉if (LoadDriverMKext(gDriverSpec) == 0) return 0;␊
276␉␉}␊
277␉}␊
278␉return -1;␊
279}␊
280␊
281//==========================================================================␊
282// FileLoadDrivers␊
283␊
284long␊
285FileLoadDrivers( char * dirSpec, long plugin )␊
286{␊
287 long ret, length, flags, time, bundleType;␊
288 long long␉ index;␊
289 long result = -1;␊
290 const char * name;␊
291␉␊
292 if ( !plugin )␊
293 {␊
294 // First try 10.6's path for loading Extensions.mkext.␊
295 if (FileLoadMKext(dirSpec, "Caches/com.apple.kext.caches/Startup/") == 0)␊
296␉␉␉return 0;␊
297␉␉␊
298 // Next try the legacy path.␊
299 else if (FileLoadMKext(dirSpec, "") == 0)␊
300␉␉␉return 0;␊
301␉␉␊
302 strcat(dirSpec, "Extensions");␊
303 }␊
304␉␊
305 index = 0;␊
306 while (1) {␊
307 ret = GetDirEntry(dirSpec, &index, &name, &flags, &time);␊
308 if (ret == -1) break;␊
309␉␉␊
310 // Make sure this is a directory.␊
311 if ((flags & kFileTypeMask) != kFileTypeDirectory) continue;␊
312 ␊
313 // Make sure this is a kext.␊
314 length = strlen(name);␊
315 if (strcmp(name + length - 5, ".kext")) continue;␊
316␉␉␊
317 // Save the file name.␊
318 strcpy(gFileName, name);␊
319␉␉␊
320 // Determine the bundle type.␊
321 sprintf(gTempSpec, "%s/%s", dirSpec, gFileName);␊
322 ret = GetFileInfo(gTempSpec, "Contents", &flags, &time);␊
323 if (ret == 0) bundleType = kCFBundleType2;␊
324 else bundleType = kCFBundleType3;␊
325␉␉␊
326 if (!plugin)␊
327 sprintf(gDriverSpec, "%s/%s/%sPlugIns", dirSpec, gFileName,␊
328 (bundleType == kCFBundleType2) ? "Contents/" : "");␊
329␉␉␊
330 ret = LoadDriverPList(dirSpec, gFileName, bundleType);␊
331␉␉␊
332 if (result != 0)␊
333␉␉␉result = ret;␊
334␉␉␊
335 if (!plugin) ␊
336␉␉␉FileLoadDrivers(gDriverSpec, 1);␊
337 }␊
338␉␊
339 return result;␊
340}␊
341␊
342//==========================================================================␊
343// ␊
344#ifdef NBP_SUPPORT␊
345long␊
346NetLoadDrivers( char * dirSpec )␊
347{␊
348 long tries;␊
349␉␊
350#if NODEF␊
351 long cnt;␊
352␉␊
353 // Get the name of the kernel␊
354 cnt = strlen(gBootFile);␊
355 while (cnt--) {␊
356 if ((gBootFile[cnt] == '\\') || (gBootFile[cnt] == ',')) {␊
357␉␉␉cnt++;␊
358␉␉␉break;␊
359 }␊
360 }␊
361#endif␊
362␉␊
363 // INTEL modification␊
364 sprintf(gDriverSpec, "%s%s.mkext", dirSpec, bootInfo->bootFile);␊
365 ␊
366 verbose("NetLoadDrivers: Loading from [%s]\n", gDriverSpec);␊
367 ␊
368 tries = 3;␊
369 while (tries--)␊
370 {␊
371 if (LoadDriverMKext(gDriverSpec) == 0) break;␊
372 }␊
373 if (tries == -1) return -1;␊
374␉␊
375 return 0;␊
376}␊
377#endif␊
378//==========================================================================␊
379// loadDriverMKext␊
380␊
381long␊
382LoadDriverMKext( char * fileSpec )␊
383{␊
384 unsigned long driversAddr, driversLength;␊
385 long length;␊
386 char segName[32];␊
387 DriversPackage * package;␊
388␉␊
389#define GetPackageElement(e) OSSwapBigToHostInt32(package->e)␊
390␉␊
391 // Load the MKext.␊
392 length = LoadThinFatFile(fileSpec, (void **)&package);␊
393 if (!length || (unsigned)length < sizeof (DriversPackage)) return -1;␊
394␉␊
395␉// call hook to notify modules that the mkext has been loaded␊
396␉execute_hook("LoadDriverMKext", (void*)fileSpec, (void*)package, &length, NULL, NULL, NULL);␊
397␉␊
398␉␊
399 // Verify the MKext.␊
400 if (( GetPackageElement(signature1) != kDriverPackageSignature1) ||␊
401 ( GetPackageElement(signature2) != kDriverPackageSignature2) ||␊
402 ( GetPackageElement(length) > kLoadSize ) ||␊
403 ( GetPackageElement(alder32) !=␊
404␉␉ adler32((unsigned char *)&package->version, GetPackageElement(length) - 0x10) ) )␊
405 {␊
406 return -1;␊
407 }␊
408␉␊
409␉␊
410 // Make space for the MKext.␊
411 driversLength = GetPackageElement(length);␊
412 driversAddr = AllocateKernelMemory(driversLength);␊
413␉␊
414 // Copy the MKext.␊
415 memcpy((void *)driversAddr, (void *)package, driversLength);␊
416␉␊
417 // Add the MKext to the memory map.␊
418 sprintf(segName, "DriversPackage-%lx", driversAddr); ␊
419 ␊
420#if UNUSED␊
421 AllocateMemoryRange(segName, driversAddr, driversLength,␊
422 kBootDriverTypeMKEXT);␊
423#else␊
424 AllocateMemoryRange(segName, driversAddr, driversLength);␊
425#endif␊
426␉␊
427 return 0;␊
428}␊
429␊
430//==========================================================================␊
431// LoadDriverPList␊
432␊
433long␊
434LoadDriverPList( char * dirSpec, char * name, long bundleType )␊
435{␊
436 long length, executablePathLength, bundlePathLength;␊
437 ModulePtr module;␊
438 TagPtr personalities;␊
439 char * buffer = 0;␊
440 char * tmpExecutablePath = 0;␊
441 char * tmpBundlePath = 0;␊
442 long ret = -1;␊
443␉␊
444 do {␊
445 // Save the driver path.␊
446 ␊
447 sprintf(gFileSpec, "%s/%s/%s", dirSpec, name,␊
448 (bundleType == kCFBundleType2) ? "Contents/MacOS/" : "");␊
449 executablePathLength = strlen(gFileSpec) + 1;␊
450␉␉␊
451 tmpExecutablePath = malloc(executablePathLength);␊
452 if (tmpExecutablePath == 0) break;␊
453␉␉␊
454 strcpy(tmpExecutablePath, gFileSpec);␊
455␉␉␊
456 sprintf(gFileSpec, "%s/%s", dirSpec, name);␊
457 bundlePathLength = strlen(gFileSpec) + 1;␊
458␉␉␊
459 tmpBundlePath = malloc(bundlePathLength);␊
460 if (tmpBundlePath == 0) break;␊
461␉␉␊
462 strcpy(tmpBundlePath, gFileSpec);␊
463␉␉␊
464 // Construct the file spec to the plist, then load it.␊
465␉␉␊
466 sprintf(gFileSpec, "%s/%s/%sInfo.plist", dirSpec, name,␊
467 (bundleType == kCFBundleType2) ? "Contents/" : "");␊
468␉␉␊
469 length = LoadFile(gFileSpec);␊
470 if (length == -1) break;␊
471␉␉␊
472 length = length + 1;␊
473 buffer = malloc(length);␊
474 if (buffer == 0) break;␊
475␉␉␊
476 strlcpy(buffer, (char *)kLoadAddr, length);␊
477␉␉␊
478 // Parse the plist.␊
479␉␉␊
480 ret = ParseXML(buffer, &module, &personalities);␊
481 if (ret != 0) { break; }␊
482␉␉␊
483 // Allocate memory for the driver path and the plist.␊
484␉␉␊
485 module->executablePath = tmpExecutablePath;␊
486 module->bundlePath = tmpBundlePath;␊
487 module->bundlePathLength = bundlePathLength;␊
488 module->plistAddr = malloc(length);␊
489␉␉␊
490 if ((module->executablePath == 0) || (module->bundlePath == 0) || (module->plistAddr == 0))␊
491 {␊
492 if ( module->plistAddr ) free(module->plistAddr);␊
493 break;␊
494 }␊
495␉␉␊
496 // Save the driver path in the module.␊
497 //strcpy(module->driverPath, tmpDriverPath);␊
498 tmpExecutablePath = 0;␊
499 tmpBundlePath = 0;␊
500␉␉␊
501 // Add the plist to the module.␊
502␉␉␊
503 strlcpy(module->plistAddr, (char *)kLoadAddr, length);␊
504 module->plistLength = length;␊
505␉␉␊
506 // Add the module to the end of the module list.␊
507 ␊
508 if (gModuleHead == 0)␊
509 gModuleHead = module;␊
510 else␊
511 gModuleTail->nextModule = module;␊
512 gModuleTail = module;␊
513␉␉␊
514 // Add the persionalities to the personality list.␊
515␉␉␊
516 if (personalities) personalities = personalities->tag;␊
517 while (personalities != 0)␊
518 {␊
519 if (gPersonalityHead == 0)␊
520 gPersonalityHead = personalities->tag;␊
521 else␊
522 gPersonalityTail->tagNext = personalities->tag;␊
523 ␊
524 gPersonalityTail = personalities->tag;␊
525 personalities = personalities->tagNext;␊
526 }␊
527 ␊
528 ret = 0;␊
529 }␊
530 while (0);␊
531 ␊
532 if ( buffer ) free( buffer );␊
533 if ( tmpExecutablePath ) free( tmpExecutablePath );␊
534 if ( tmpBundlePath ) free( tmpBundlePath );␊
535␉␊
536 return ret;␊
537}␊
538␊
539␊
540//==========================================================================␊
541// LoadMatchedModules␊
542␊
543long LoadMatchedModules( void )␊
544{␊
545 TagPtr prop;␊
546 ModulePtr module;␊
547 char *fileName, segName[32];␊
548 DriverInfoPtr driver;␊
549 long length, driverAddr, driverLength;␊
550 void *executableAddr = 0;␊
551␉␊
552␉␊
553 module = gModuleHead;␊
554␉␊
555 while (module != 0)␊
556 {␊
557 if (module->willLoad)␊
558 {␊
559 prop = XMLGetProperty(module->dict, kPropCFBundleExecutable);␊
560␉␉␉␊
561 if (prop != 0)␊
562 {␊
563 fileName = prop->string;␊
564 sprintf(gFileSpec, "%s%s", module->executablePath, fileName);␊
565 length = LoadThinFatFile(gFileSpec, &executableAddr);␊
566␉␉␉␉if (length == 0)␊
567␉␉␉␉{␊
568␉␉␉␉␉length = LoadFile(gFileSpec);␊
569␉␉␉␉␉executableAddr = (void *)kLoadAddr;␊
570␉␉␉␉}␊
571 //printf("%s length = %d addr = 0x%x\n", gFileSpec, length, driverModuleAddr); getc();␊
572 ␊
573 }␊
574 else␊
575 length = 0;␊
576␉␉␉␊
577 if ((length != -1) && executableAddr)␊
578 {␊
579␉␉␉␉//driverModuleAddr = (void *)kLoadAddr;␊
580 //if (length != 0)␊
581 //{␊
582␉␉␉␉// ThinFatFile(&driverModuleAddr, &length);␊
583␉␉␉␉//}␊
584␉␉␉␉␊
585 // Make make in the image area.␊
586␉␉␉␉␊
587␉␉␉␉execute_hook("LoadMatchedModules", module, &length, executableAddr, NULL, NULL, NULL);␊
588␉␉␉␉␊
589 driverLength = sizeof(DriverInfo) + module->plistLength + length + module->bundlePathLength;␊
590 driverAddr = AllocateKernelMemory(driverLength);␊
591␉␉␉␉␊
592 // Set up the DriverInfo.␊
593 driver = (DriverInfoPtr)driverAddr;␊
594 driver->plistAddr = (char *)(driverAddr + sizeof(DriverInfo));␊
595 driver->plistLength = module->plistLength;␊
596 if (length != 0)␊
597 {␊
598 driver->executableAddr = (void *)(driverAddr + sizeof(DriverInfo) +␊
599␉␉␉␉␉␉␉␉␉␉␉␉␉ module->plistLength);␊
600 driver->executableLength = length;␊
601 }␊
602 else␊
603 {␊
604 driver->executableAddr = 0;␊
605 driver->executableLength = 0;␊
606 }␊
607 driver->bundlePathAddr = (void *)(driverAddr + sizeof(DriverInfo) +␊
608␉␉␉␉␉␉␉␉␉␉␉␉ module->plistLength + driver->executableLength);␊
609 driver->bundlePathLength = module->bundlePathLength;␊
610␉␉␉␉␊
611 // Save the plist, module and bundle.␊
612 strcpy(driver->plistAddr, module->plistAddr);␊
613 if (length != 0)␊
614 {␊
615 memcpy(driver->executableAddr, executableAddr, length);␊
616 }␊
617 strcpy(driver->bundlePathAddr, module->bundlePath);␊
618␉␉␉␉␊
619 // Add an entry to the memory map.␊
620 sprintf(segName, "Driver-%lx", (unsigned long)driver); ␊
621#if UNUSED␊
622 AllocateMemoryRange(segName, driverAddr, driverLength,␊
623 kBootDriverTypeKEXT);␊
624#else␊
625 AllocateMemoryRange(segName, driverAddr, driverLength);␊
626#endif␊
627 ␊
628 }␊
629 }␊
630 module = module->nextModule;␊
631 }␊
632␉␊
633 return 0;␊
634}␊
635␊
636#if UNUSED␊
637//==========================================================================␊
638// MatchPersonalities␊
639␊
640long MatchPersonalities( void )␊
641{␊
642 /* IONameMatch support not implemented */␊
643 return 0;␊
644}␊
645#endif␊
646␊
647//==========================================================================␊
648// MatchLibraries␊
649␊
650long MatchLibraries( void )␊
651{␊
652 TagPtr prop, prop2;␊
653 ModulePtr module, module2;␊
654 long done;␊
655␉␊
656 do {␊
657 done = 1;␊
658 module = gModuleHead;␊
659 ␊
660 while (module != 0)␊
661 {␊
662 if (module->willLoad == 1)␊
663 {␊
664 prop = XMLGetProperty(module->dict, kPropOSBundleLibraries);␊
665 if (prop != 0)␊
666 {␊
667 prop = prop->tag;␊
668 while (prop != 0)␊
669 {␊
670 module2 = gModuleHead;␊
671 while (module2 != 0)␊
672 {␊
673 prop2 = XMLGetProperty(module2->dict, kPropCFBundleIdentifier);␊
674 if ((prop2 != 0) && (!strcmp(prop->string, prop2->string)))␊
675 {␊
676 if (module2->willLoad == 0) module2->willLoad = 1;␊
677 break;␊
678 }␊
679 module2 = module2->nextModule;␊
680 }␊
681 prop = prop->tagNext;␊
682 }␊
683 }␊
684 module->willLoad = 2;␊
685 done = 0;␊
686 }␊
687 module = module->nextModule;␊
688 }␊
689 }␊
690 while (!done);␊
691␉␊
692 return 0;␊
693}␊
694␊
695␊
696//==========================================================================␊
697// FindModule␊
698␊
699#if UNUSED␊
700static ModulePtr␊
701FindModule( char * name )␊
702{␊
703 ModulePtr module;␊
704 TagPtr prop;␊
705 ␊
706 module = gModuleHead;␊
707 ␊
708 while (module != 0)␊
709 {␊
710 prop = GetProperty(module->dict, kPropCFBundleIdentifier);␊
711 if ((prop != 0) && !strcmp(name, prop->string)) break;␊
712 module = module->nextModule;␊
713 }␊
714 ␊
715 return module;␊
716}␊
717#endif␊
718␊
719//==========================================================================␊
720// ParseXML␊
721␊
722static long␊
723ParseXML( char * buffer, ModulePtr * module, TagPtr * personalities )␊
724{␊
725␉long length, pos;␊
726␉TagPtr moduleDict, required;␊
727␉ModulePtr tmpModule;␊
728␉␊
729 pos = 0;␊
730␉␊
731 while (1)␊
732 {␊
733 length = XMLParseNextTag(buffer + pos, &moduleDict);␊
734 if (length == -1) break;␊
735␉␉␊
736 pos += length;␊
737␉␉␊
738 if (moduleDict == 0) continue;␊
739 if (moduleDict->type == kTagTypeDict) break;␊
740␉␉␊
741 XMLFreeTag(moduleDict);␊
742 }␊
743␉␊
744 if (length == -1) return -1;␊
745␉␊
746 required = XMLGetProperty(moduleDict, kPropOSBundleRequired);␊
747 if ( (required == 0) ||␊
748␉␉(required->type != kTagTypeString) ||␊
749␉␉!strcmp(required->string, "Safe Boot"))␊
750 {␊
751 XMLFreeTag(moduleDict);␊
752 return -2;␊
753 }␊
754␉␊
755 tmpModule = malloc(sizeof(Module));␊
756 if (tmpModule == 0)␊
757 {␊
758 XMLFreeTag(moduleDict);␊
759 return -1;␊
760 }␊
761 tmpModule->dict = moduleDict;␊
762␉␊
763 // For now, load any module that has OSBundleRequired != "Safe Boot".␊
764␉␊
765 tmpModule->willLoad = 1;␊
766␉␊
767 *module = tmpModule;␊
768␉␊
769 // Get the personalities.␊
770␉␊
771 *personalities = XMLGetProperty(moduleDict, kPropIOKitPersonalities);␊
772␉␊
773 return 0;␊
774}␊
775␊
776␊
777long ␊
778DecodeKernel(void *binary, entry_t *rentry, char **raddr, int *rsize)␊
779{␊
780 long ret;␊
781 compressed_kernel_header * kernel_header = (compressed_kernel_header *) binary;␊
782␉␊
783#if 0␊
784 printf("kernel header:\n");␊
785 printf("signature: 0x%x\n", kernel_header->signature);␊
786 printf("compress_type: 0x%x\n", kernel_header->compress_type);␊
787 printf("adler32: 0x%x\n", kernel_header->adler32);␊
788 printf("uncompressed_size: 0x%x\n", kernel_header->uncompressed_size);␊
789 printf("compressed_size: 0x%x\n", kernel_header->compressed_size);␊
790 getc();␊
791#endif␊
792␉␊
793 if (kernel_header->signature == OSSwapBigToHostConstInt32('comp'))␊
794␉{␊
795 if (kernel_header->compress_type != OSSwapBigToHostConstInt32('lzss'))␊
796␉␉{␊
797 error("kernel compression is bad\n");␊
798 return -1;␊
799 }␊
800␉␉␊
801␉␉u_int32_t uncompressed_size, size;␊
802␉␉␊
803 uncompressed_size = OSSwapBigToHostInt32(kernel_header->uncompressed_size);␊
804 binary = malloc(uncompressed_size);␊
805␉␉if (!binary) {␊
806␉␉␉printf("Unable to allocate memory for uncompressed kernel\n");␊
807 return -1;␊
808␉␉}␊
809␉␉␊
810 size = decompress_lzss((u_int8_t *) binary, &kernel_header->data[0],␊
811 OSSwapBigToHostInt32(kernel_header->compressed_size));␊
812 if (uncompressed_size != size)␊
813␉␉{␊
814 error("size mismatch from lzss: %x\n", size);␊
815 return -1;␊
816 }␊
817 if (OSSwapBigToHostInt32(kernel_header->adler32) !=␊
818 adler32(binary, uncompressed_size))␊
819␉␉{␊
820 printf("adler mismatch\n");␊
821 return -1;␊
822 }␊
823 char* BootKernelCacheFile = (char*)(uint32_t)get_env(envkCache);␊
824␉␉if (((get_env(envgBootMode) & kBootModeSafe) == 0) && (BootKernelCacheFile[0] != '\0') && gBootVolume->OSVersion[3] > '6') ␊
825␉␉␉safe_set_env(envAdler32, kernel_header->adler32);␊
826 }␊
827␉␊
828␉{␊
829␉␉unsigned long len;␊
830␉␉ret = ThinFatFile(&binary, &len);␊
831␉␉if (ret == 0 && len == 0 && archCpuType==CPU_TYPE_X86_64)␊
832␉␉{␊
833␉␉␉archCpuType=CPU_TYPE_I386;␊
834␉␉␉/*ret =*/ ThinFatFile(&binary, &len);␊
835␉␉}␊
836␉␉␊
837␉␉ret = DecodeMachO(binary, rentry, raddr, rsize);␊
838␉␉␊
839␉␉if (ret<0 && archCpuType==CPU_TYPE_X86_64)␊
840␉␉{␊
841␉␉␉archCpuType=CPU_TYPE_I386;␊
842␉␉␉ret = DecodeMachO(binary, rentry, raddr, rsize);␊
843␉␉}␊
844␉}␊
845␉␊
846␉return ret;␊
847}

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