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

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Revision: 2006