| 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 "xml.h"␊ |
| 40 | #include "ramdisk.h"␊ |
| 41 | #include "modules.h"␊ |
| 42 | ␊ |
| 43 | //extern char gMacOSVersion[8];␊ |
| 44 | ␊ |
| 45 | struct Module { ␊ |
| 46 | ␉struct Module *nextModule;␊ |
| 47 | ␉long willLoad;␊ |
| 48 | ␉TagPtr dict;␊ |
| 49 | ␉char *plistAddr;␊ |
| 50 | ␉long plistLength;␊ |
| 51 | ␉char *executablePath;␊ |
| 52 | ␉char *bundlePath;␊ |
| 53 | ␉long bundlePathLength;␊ |
| 54 | };␊ |
| 55 | typedef struct Module Module, *ModulePtr;␊ |
| 56 | ␊ |
| 57 | struct DriverInfo {␊ |
| 58 | ␉char *plistAddr;␊ |
| 59 | ␉long plistLength;␊ |
| 60 | ␉void *executableAddr;␊ |
| 61 | ␉long executableLength;␊ |
| 62 | ␉void *bundlePathAddr;␊ |
| 63 | ␉long bundlePathLength;␊ |
| 64 | };␊ |
| 65 | typedef struct DriverInfo DriverInfo, *DriverInfoPtr;␊ |
| 66 | ␊ |
| 67 | #define kDriverPackageSignature1 'MKXT'␊ |
| 68 | #define kDriverPackageSignature2 'MOSX'␊ |
| 69 | ␊ |
| 70 | struct DriversPackage {␊ |
| 71 | unsigned long signature1;␊ |
| 72 | unsigned long signature2;␊ |
| 73 | unsigned long length;␊ |
| 74 | unsigned long adler32;␊ |
| 75 | unsigned long version;␊ |
| 76 | unsigned long numDrivers;␊ |
| 77 | unsigned long reserved1;␊ |
| 78 | unsigned long reserved2;␊ |
| 79 | };␊ |
| 80 | typedef struct DriversPackage DriversPackage;␊ |
| 81 | ␊ |
| 82 | enum {␊ |
| 83 | ␉kCFBundleType2,␊ |
| 84 | ␉kCFBundleType3␊ |
| 85 | };␊ |
| 86 | ␊ |
| 87 | long (*LoadExtraDrivers_p)(FileLoadDrivers_t FileLoadDrivers_p);␊ |
| 88 | ␊ |
| 89 | /*static*/ unsigned long Adler32( unsigned char * buffer, long length );␊ |
| 90 | ␊ |
| 91 | long FileLoadDrivers(char *dirSpec, long plugin);␊ |
| 92 | long NetLoadDrivers(char *dirSpec);␊ |
| 93 | long LoadDriverMKext(char *fileSpec);␊ |
| 94 | long LoadDriverPList(char *dirSpec, char *name, long bundleType);␊ |
| 95 | long LoadMatchedModules(void);␊ |
| 96 | ␊ |
| 97 | static long MatchPersonalities(void);␊ |
| 98 | static long MatchLibraries(void);␊ |
| 99 | #ifdef NOTDEF␊ |
| 100 | static ModulePtr FindModule(char *name);␊ |
| 101 | static void ThinFatFile(void **loadAddrP, unsigned long *lengthP);␊ |
| 102 | #endif␊ |
| 103 | static long ParseXML(char *buffer, ModulePtr *module, TagPtr *personalities);␊ |
| 104 | static long InitDriverSupport(void);␊ |
| 105 | ␊ |
| 106 | ModulePtr gModuleHead, gModuleTail;␊ |
| 107 | static TagPtr gPersonalityHead, gPersonalityTail;␊ |
| 108 | static char * gExtensionsSpec;␊ |
| 109 | static char * gDriverSpec;␊ |
| 110 | static char * gFileSpec;␊ |
| 111 | static char * gTempSpec;␊ |
| 112 | static char * gFileName;␊ |
| 113 | ␊ |
| 114 | /*static*/ unsigned long␊ |
| 115 | Adler32( unsigned char * buffer, long length )␊ |
| 116 | {␊ |
| 117 | ␉long cnt;␊ |
| 118 | ␉unsigned long result, lowHalf, highHalf;␊ |
| 119 | ␊ |
| 120 | ␉lowHalf = 1;␊ |
| 121 | ␉highHalf = 0;␊ |
| 122 | ␊ |
| 123 | ␉for (cnt = 0; cnt < length; cnt++)␊ |
| 124 | ␉{␊ |
| 125 | ␉␉if ((cnt % 5000) == 0)␊ |
| 126 | ␉␉{␊ |
| 127 | ␉␉␉lowHalf %= 65521L;␊ |
| 128 | ␉␉␉highHalf %= 65521L;␊ |
| 129 | ␉␉}␊ |
| 130 | ␊ |
| 131 | ␉␉lowHalf += buffer[cnt];␊ |
| 132 | ␉␉highHalf += lowHalf;␊ |
| 133 | ␉}␊ |
| 134 | ␊ |
| 135 | ␉lowHalf %= 65521L;␊ |
| 136 | ␉highHalf %= 65521L;␊ |
| 137 | ␊ |
| 138 | ␉result = (highHalf << 16) | lowHalf;␊ |
| 139 | ␊ |
| 140 | ␉return result;␊ |
| 141 | }␊ |
| 142 | ␊ |
| 143 | ␊ |
| 144 | //==========================================================================␊ |
| 145 | // InitDriverSupport␊ |
| 146 | ␊ |
| 147 | static long␊ |
| 148 | InitDriverSupport( void )␊ |
| 149 | {␊ |
| 150 | ␉gExtensionsSpec = malloc( 4096 );␊ |
| 151 | ␉gDriverSpec = malloc( 4096 );␊ |
| 152 | ␉gFileSpec = malloc( 4096 );␊ |
| 153 | ␉gTempSpec = malloc( 4096 );␊ |
| 154 | ␉gFileName = malloc( 4096 );␊ |
| 155 | ␊ |
| 156 | ␉if ( !gExtensionsSpec || !gDriverSpec || !gFileSpec || !gTempSpec || !gFileName ) {␊ |
| 157 | ␉␉stop("InitDriverSupport error");␊ |
| 158 | ␉}␊ |
| 159 | ␊ |
| 160 | ␉return 0;␊ |
| 161 | }␊ |
| 162 | ␊ |
| 163 | //==========================================================================␊ |
| 164 | // LoadDrivers␊ |
| 165 | ␊ |
| 166 | long LoadDrivers( char * dirSpec )␊ |
| 167 | {␊ |
| 168 | ␉char dirSpecExtra[1024];␊ |
| 169 | ␊ |
| 170 | ␉if ( InitDriverSupport() != 0 ) {␊ |
| 171 | ␉␉return 0;␊ |
| 172 | ␉}␊ |
| 173 | ␊ |
| 174 | ␉// Load extra drivers if a hook has been installed.␊ |
| 175 | ␉if (LoadExtraDrivers_p != NULL)␊ |
| 176 | ␉{␊ |
| 177 | ␉␉(*LoadExtraDrivers_p)(&FileLoadDrivers);␊ |
| 178 | ␉}␊ |
| 179 | ␊ |
| 180 | ␉if ( gBootFileType == kNetworkDeviceType )␊ |
| 181 | ␉{␊ |
| 182 | ␉␉if (NetLoadDrivers(dirSpec) != 0)␊ |
| 183 | ␉␉{␊ |
| 184 | ␉␉␉error("Could not load drivers from the network\n");␊ |
| 185 | ␉␉␉return -1;␊ |
| 186 | ␉␉}␊ |
| 187 | ␉}␊ |
| 188 | ␉else if ( gBootFileType == kBlockDeviceType )␊ |
| 189 | ␉{␊ |
| 190 | ␉␉// First try to load Extra extensions from the ramdisk if isn't aliased as bt(0,0).␊ |
| 191 | ␉␉if (gRAMDiskVolume && !gRAMDiskBTAliased)␊ |
| 192 | ␉␉{␊ |
| 193 | ␉␉␉strcpy(dirSpecExtra, "rd(0,0)/Extra/");␊ |
| 194 | ␉␉␉FileLoadDrivers(dirSpecExtra, 0);␊ |
| 195 | ␉␉}␊ |
| 196 | ␊ |
| 197 | ␉␉// Next try to load Extra extensions from the selected root partition.␊ |
| 198 | ␉␉strcpy(dirSpecExtra, "/Extra/");␊ |
| 199 | ␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0) {␊ |
| 200 | ␉␉␉// If failed, then try to load Extra extensions from the boot partition␊ |
| 201 | ␉␉␉// in case we have a separate booter partition or a bt(0,0) aliased ramdisk.␊ |
| 202 | ␉␉␉if ( !(gBIOSBootVolume->biosdev == gBootVolume->biosdev && gBIOSBootVolume->part_no == gBootVolume->part_no)␊ |
| 203 | ␉␉␉␉|| (gRAMDiskVolume && gRAMDiskBTAliased) ) {␊ |
| 204 | ␉␉␉␉// Next try a specfic OS version folder ie 10.5␊ |
| 205 | ␉␉␉␉sprintf(dirSpecExtra, "bt(0,0)/Extra/%s/", &gMacOSVersion);␊ |
| 206 | ␉␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0) {␊ |
| 207 | ␉␉␉␉␉// Next we'll try the base␊ |
| 208 | ␉␉␉␉␉strcpy(dirSpecExtra, "bt(0,0)/Extra/");␊ |
| 209 | ␉␉␉␉␉FileLoadDrivers(dirSpecExtra, 0);␊ |
| 210 | ␉␉␉␉}␊ |
| 211 | ␉␉␉}␊ |
| 212 | ␉␉}␊ |
| 213 | ␉␉if(!gHaveKernelCache) {␊ |
| 214 | ␉␉␉// Don't load main driver (from /System/Library/Extentions) if gHaveKernelCache is set.␊ |
| 215 | ␉␉␉// since these drivers will already be in the kernel cache.␊ |
| 216 | ␉␉␉// NOTE: when gHaveKernelCache, xnu cannot (by default) load *any* extra kexts from the bootloader.␊ |
| 217 | ␉␉␉// The /Extra code is not disabled in this case due to a kernel patch that allows for this to happen.␊ |
| 218 | ␊ |
| 219 | ␉␉␉// Also try to load Extensions from boot helper partitions.␊ |
| 220 | ␉␉␉if (gBootVolume->flags & kBVFlagBooter) {␊ |
| 221 | ␉␉␉␉strcpy(dirSpecExtra, "/com.apple.boot.P/System/Library/");␊ |
| 222 | ␉␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0) {␊ |
| 223 | ␉␉␉␉␉strcpy(dirSpecExtra, "/com.apple.boot.R/System/Library/");␊ |
| 224 | ␉␉␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0) {␊ |
| 225 | ␉␉␉␉␉␉strcpy(dirSpecExtra, "/com.apple.boot.S/System/Library/");␊ |
| 226 | ␉␉␉␉␉␉FileLoadDrivers(dirSpecExtra, 0);␊ |
| 227 | ␉␉␉␉␉}␊ |
| 228 | ␉␉␉␉}␊ |
| 229 | ␉␉␉}␊ |
| 230 | ␊ |
| 231 | ␉␉␉if (gMKextName[0] != '\0') {␊ |
| 232 | ␉␉␉␉verbose("LoadDrivers: Loading from [%s]\n", gMKextName);␊ |
| 233 | ␉␉␉␉if ( LoadDriverMKext(gMKextName) != 0 ) {␊ |
| 234 | ␉␉␉␉␉error("Could not load %s\n", gMKextName);␊ |
| 235 | ␉␉␉␉␉return -1;␊ |
| 236 | ␉␉␉␉}␊ |
| 237 | ␉␉␉} else {␊ |
| 238 | ␉␉␉␉if (gMacOSVersion[3] == '9') {␊ |
| 239 | ␉␉␉␉␉strlcpy(gExtensionsSpec, dirSpec, 4087); /* 4096 - sizeof("Library/") */␊ |
| 240 | ␉␉␉␉␉strcat(gExtensionsSpec, "Library/");␊ |
| 241 | ␉␉␉␉␉FileLoadDrivers(gExtensionsSpec, 0);␊ |
| 242 | ␉␉␉␉}␊ |
| 243 | ␉␉␉␉strlcpy(gExtensionsSpec, dirSpec, 4080); /* 4096 - sizeof("System/Library/") */␊ |
| 244 | ␉␉␉␉strcat(gExtensionsSpec, "System/Library/");␊ |
| 245 | ␉␉␉␉FileLoadDrivers(gExtensionsSpec, 0);␊ |
| 246 | ␉␉␉}␊ |
| 247 | ␊ |
| 248 | ␉␉}␊ |
| 249 | ␉} else {␊ |
| 250 | ␉␉return 0;␊ |
| 251 | ␉}␊ |
| 252 | ␊ |
| 253 | ␉MatchPersonalities();␊ |
| 254 | ␊ |
| 255 | ␉MatchLibraries();␊ |
| 256 | ␊ |
| 257 | ␉LoadMatchedModules();␊ |
| 258 | ␊ |
| 259 | ␉return 0;␊ |
| 260 | }␊ |
| 261 | ␊ |
| 262 | //==========================================================================␊ |
| 263 | // FileLoadMKext␊ |
| 264 | ␊ |
| 265 | static long␊ |
| 266 | FileLoadMKext( const char * dirSpec, const char * extDirSpec )␊ |
| 267 | {␊ |
| 268 | ␉long␉ret, flags, time, time2;␊ |
| 269 | ␉char␉altDirSpec[512];␊ |
| 270 | ␉␊ |
| 271 | ␉snprintf(altDirSpec, sizeof(altDirSpec), "%s%s", dirSpec, extDirSpec);␊ |
| 272 | ␉ret = GetFileInfo(altDirSpec, "Extensions.mkext", &flags, &time);␊ |
| 273 | ␊ |
| 274 | ␉if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeFlat))␊ |
| 275 | ␉{␊ |
| 276 | ␉␉ret = GetFileInfo(dirSpec, "Extensions", &flags, &time2);␊ |
| 277 | ␊ |
| 278 | ␉␉if ((ret != 0)␊ |
| 279 | ␉␉␉|| ((flags & kFileTypeMask) != kFileTypeDirectory)␊ |
| 280 | ␉␉␉|| (((gBootMode & kBootModeSafe) == 0) && (time == (time2 + 1))))␊ |
| 281 | ␉␉{␊ |
| 282 | ␉␉␉snprintf(gDriverSpec, sizeof(altDirSpec) + 18, "%sExtensions.mkext", altDirSpec);␊ |
| 283 | ␉␉␉verbose("LoadDrivers: Loading from [%s]\n", gDriverSpec);␊ |
| 284 | ␊ |
| 285 | ␉␉␉if (LoadDriverMKext(gDriverSpec) == 0) {␊ |
| 286 | ␉␉␉␉return 0;␊ |
| 287 | ␉␉␉}␊ |
| 288 | ␉␉}␊ |
| 289 | ␉}␊ |
| 290 | ␉return -1;␊ |
| 291 | }␊ |
| 292 | ␊ |
| 293 | //==========================================================================␊ |
| 294 | // FileLoadDrivers␊ |
| 295 | ␊ |
| 296 | long␊ |
| 297 | FileLoadDrivers( char * dirSpec, long plugin )␊ |
| 298 | {␊ |
| 299 | ␉long ret, length, flags, time, bundleType;␊ |
| 300 | ␉long long␉ index;␊ |
| 301 | ␉long result = -1;␊ |
| 302 | ␉const char * name;␊ |
| 303 | ␊ |
| 304 | ␉if ( !plugin )␊ |
| 305 | ␉{␊ |
| 306 | ␉␉// First try 10.6's path for loading Extensions.mkext.␊ |
| 307 | ␉␉if (FileLoadMKext(dirSpec, "Caches/com.apple.kext.caches/Startup/") == 0) {␊ |
| 308 | ␉␉␉return 0;␊ |
| 309 | ␉␉}␊ |
| 310 | ␊ |
| 311 | ␉␉// Next try the legacy path.␊ |
| 312 | ␉␉else if (FileLoadMKext(dirSpec, "") == 0) {␊ |
| 313 | ␉␉␉return 0;␊ |
| 314 | ␉␉}␊ |
| 315 | ␊ |
| 316 | ␉␉strcat(dirSpec, "Extensions");␊ |
| 317 | ␉}␊ |
| 318 | ␊ |
| 319 | ␉index = 0;␊ |
| 320 | ␉while (1)␊ |
| 321 | ␉{␊ |
| 322 | ␉␉ret = GetDirEntry(dirSpec, &index, &name, &flags, &time);␊ |
| 323 | ␉␉if (ret == -1) {␊ |
| 324 | ␉␉␉break;␊ |
| 325 | ␉␉}␊ |
| 326 | ␊ |
| 327 | ␉␉// Make sure this is a directory.␊ |
| 328 | ␉␉if ((flags & kFileTypeMask) != kFileTypeDirectory) {␊ |
| 329 | ␉␉␉continue;␊ |
| 330 | ␉␉}␊ |
| 331 | ␊ |
| 332 | ␉␉// Make sure this is a kext.␊ |
| 333 | ␉␉length = strlen(name);␊ |
| 334 | ␉␉if (strcmp(name + length - 5, ".kext")) {␊ |
| 335 | ␉␉␉continue;␊ |
| 336 | ␉␉}␊ |
| 337 | ␊ |
| 338 | ␉␉// Save the file name.␊ |
| 339 | ␉␉strlcpy(gFileName, name, 4096);␊ |
| 340 | ␊ |
| 341 | ␉␉// Determine the bundle type.␊ |
| 342 | ␉␉snprintf(gTempSpec, 4096, "%s/%s", dirSpec, gFileName);␊ |
| 343 | ␉␉ret = GetFileInfo(gTempSpec, "Contents", &flags, &time);␊ |
| 344 | ␉␉if (ret == 0) {␊ |
| 345 | ␉␉␉bundleType = kCFBundleType2;␊ |
| 346 | ␉␉} else {␊ |
| 347 | ␉␉␉bundleType = kCFBundleType3;␊ |
| 348 | ␉␉}␊ |
| 349 | ␊ |
| 350 | ␉␉if (!plugin) {␊ |
| 351 | ␉␉␉snprintf(gDriverSpec, 4096, "%s/%s/%sPlugIns", dirSpec, gFileName, (bundleType == kCFBundleType2) ? "Contents/" : "");␊ |
| 352 | ␉␉}␊ |
| 353 | ␊ |
| 354 | ␉␉ret = LoadDriverPList(dirSpec, gFileName, bundleType);␊ |
| 355 | ␊ |
| 356 | ␉␉if (result != 0) {␊ |
| 357 | ␉␉␉result = ret;␊ |
| 358 | ␉␉}␊ |
| 359 | ␊ |
| 360 | ␉␉if (!plugin) {␊ |
| 361 | ␉␉␉FileLoadDrivers(gDriverSpec, 1);␊ |
| 362 | ␉␉}␊ |
| 363 | ␉}␊ |
| 364 | ␊ |
| 365 | ␉return result;␊ |
| 366 | }␊ |
| 367 | ␊ |
| 368 | ␊ |
| 369 | //==========================================================================␊ |
| 370 | // ␊ |
| 371 | ␊ |
| 372 | long␊ |
| 373 | NetLoadDrivers( char * dirSpec )␊ |
| 374 | {␊ |
| 375 | ␉long tries;␊ |
| 376 | ␊ |
| 377 | #if NODEF␊ |
| 378 | ␉long cnt;␊ |
| 379 | ␊ |
| 380 | ␉// Get the name of the kernel␊ |
| 381 | ␉cnt = strlen(gBootFile);␊ |
| 382 | ␉while (cnt--) {␊ |
| 383 | ␉␉if ((gBootFile[cnt] == '\\') || (gBootFile[cnt] == ',')) {␊ |
| 384 | ␉␉␉cnt++;␊ |
| 385 | ␉␉␉break;␊ |
| 386 | ␉␉}␊ |
| 387 | ␉}␊ |
| 388 | #endif␊ |
| 389 | ␊ |
| 390 | ␉// INTEL modification␊ |
| 391 | ␉snprintf(gDriverSpec, 4096, "%s%s.mkext", dirSpec, bootInfo->bootFile);␊ |
| 392 | ␊ |
| 393 | ␉verbose("NetLoadDrivers: Loading from [%s]\n", gDriverSpec);␊ |
| 394 | ␊ |
| 395 | ␉tries = 3;␊ |
| 396 | ␉while (tries--)␊ |
| 397 | ␉{␊ |
| 398 | ␉␉if (LoadDriverMKext(gDriverSpec) == 0) {␊ |
| 399 | ␉␉␉break;␊ |
| 400 | ␉␉}␊ |
| 401 | ␉}␊ |
| 402 | ␉if (tries == -1) {␊ |
| 403 | ␉␉return -1;␊ |
| 404 | ␉}␊ |
| 405 | ␊ |
| 406 | ␉return 0;␊ |
| 407 | }␊ |
| 408 | ␊ |
| 409 | //==========================================================================␊ |
| 410 | // loadDriverMKext␊ |
| 411 | ␊ |
| 412 | long␊ |
| 413 | LoadDriverMKext( char * fileSpec )␊ |
| 414 | {␊ |
| 415 | ␉unsigned long driversAddr, driversLength;␊ |
| 416 | ␉long length;␊ |
| 417 | ␉char segName[32];␊ |
| 418 | ␉DriversPackage * package;␊ |
| 419 | ␊ |
| 420 | #define GetPackageElement(e) OSSwapBigToHostInt32(package->e)␊ |
| 421 | ␊ |
| 422 | ␉// Load the MKext.␊ |
| 423 | ␉length = LoadThinFatFile(fileSpec, (void **)&package);␊ |
| 424 | ␉if (length < sizeof (DriversPackage)) {␊ |
| 425 | ␉␉return -1;␊ |
| 426 | ␉}␊ |
| 427 | ␊ |
| 428 | ␉// call hook to notify modules that the mkext has been loaded␊ |
| 429 | ␉execute_hook("LoadDriverMKext", (void*)fileSpec, (void*)package, (void*) &length, NULL);␊ |
| 430 | ␊ |
| 431 | ␉␊ |
| 432 | ␉// Verify the MKext.␊ |
| 433 | ␉if (( GetPackageElement(signature1) != kDriverPackageSignature1) ||␊ |
| 434 | ␉␉( GetPackageElement(signature2) != kDriverPackageSignature2) ||␊ |
| 435 | ␉␉( GetPackageElement(length) > kLoadSize ) ||␊ |
| 436 | ␉␉( GetPackageElement(adler32) !=␊ |
| 437 | ␉␉Adler32((unsigned char *)&package->version, GetPackageElement(length) - 0x10) ) )␊ |
| 438 | ␉{␊ |
| 439 | ␉␉return -1;␊ |
| 440 | ␉}␊ |
| 441 | ␊ |
| 442 | ␉// Make space for the MKext.␊ |
| 443 | ␉driversLength = GetPackageElement(length);␊ |
| 444 | ␉driversAddr = AllocateKernelMemory(driversLength);␊ |
| 445 | ␊ |
| 446 | ␉// Copy the MKext.␊ |
| 447 | ␉memcpy((void *)driversAddr, (void *)package, driversLength);␊ |
| 448 | ␊ |
| 449 | ␉// Add the MKext to the memory map.␊ |
| 450 | ␉snprintf(segName, sizeof(segName), "DriversPackage-%lx", driversAddr);␊ |
| 451 | ␉AllocateMemoryRange(segName, driversAddr, driversLength, kBootDriverTypeMKEXT);␊ |
| 452 | ␊ |
| 453 | ␉return 0;␊ |
| 454 | }␊ |
| 455 | ␊ |
| 456 | //==========================================================================␊ |
| 457 | // LoadDriverPList␊ |
| 458 | ␊ |
| 459 | long␊ |
| 460 | LoadDriverPList( char * dirSpec, char * name, long bundleType )␊ |
| 461 | {␊ |
| 462 | ␉long length, executablePathLength, bundlePathLength;␊ |
| 463 | ␉ModulePtr module;␊ |
| 464 | ␉TagPtr personalities;␊ |
| 465 | ␉char * buffer = 0;␊ |
| 466 | ␉char * tmpExecutablePath = 0;␊ |
| 467 | ␉char * tmpBundlePath = 0;␊ |
| 468 | ␉long ret = -1;␊ |
| 469 | ␊ |
| 470 | ␉do{␊ |
| 471 | ␉// Save the driver path.␊ |
| 472 | ␊ |
| 473 | ␉if(name) {␊ |
| 474 | ␉␉snprintf(gFileSpec, 4096, "%s/%s/%s", dirSpec, name, (bundleType == kCFBundleType2) ? "Contents/MacOS/" : "");␊ |
| 475 | ␉} else {␊ |
| 476 | ␉␉snprintf(gFileSpec, 4096, "%s/%s", dirSpec, (bundleType == kCFBundleType2) ? "Contents/MacOS/" : "");␊ |
| 477 | ␉}␊ |
| 478 | ␉executablePathLength = strlen(gFileSpec) + 1;␊ |
| 479 | ␊ |
| 480 | ␉tmpExecutablePath = malloc(executablePathLength);␊ |
| 481 | ␉if (tmpExecutablePath == 0) {␊ |
| 482 | ␉␉break;␊ |
| 483 | ␉}␊ |
| 484 | ␉strcpy(tmpExecutablePath, gFileSpec);␊ |
| 485 | ␊ |
| 486 | ␉if(name) {␊ |
| 487 | ␉␉snprintf(gFileSpec, 4096, "%s/%s", dirSpec, name);␊ |
| 488 | ␉} else ␉{␊ |
| 489 | ␉␉snprintf(gFileSpec, 4096, "%s", dirSpec);␊ |
| 490 | ␉}␊ |
| 491 | ␉bundlePathLength = strlen(gFileSpec) + 1;␊ |
| 492 | ␊ |
| 493 | ␉tmpBundlePath = malloc(bundlePathLength);␊ |
| 494 | ␉if (tmpBundlePath == 0) {␊ |
| 495 | ␉␉break;␊ |
| 496 | ␉}␊ |
| 497 | ␊ |
| 498 | ␉strcpy(tmpBundlePath, gFileSpec);␊ |
| 499 | ␊ |
| 500 | ␉// Construct the file spec to the plist, then load it.␊ |
| 501 | ␊ |
| 502 | ␉if(name) {␊ |
| 503 | ␉␉snprintf(gFileSpec, 4096, "%s/%s/%sInfo.plist", dirSpec, name, (bundleType == kCFBundleType2) ? "Contents/" : "");␊ |
| 504 | ␉} else {␊ |
| 505 | ␉␉snprintf(gFileSpec, 4096, "%s/%sInfo.plist", dirSpec, (bundleType == kCFBundleType2) ? "Contents/" : "");␊ |
| 506 | ␉}␊ |
| 507 | ␊ |
| 508 | ␉length = LoadFile(gFileSpec);␊ |
| 509 | ␉if (length == -1) {␊ |
| 510 | ␉␉break;␊ |
| 511 | ␉}␊ |
| 512 | ␉length = length + 1;␊ |
| 513 | ␉buffer = malloc(length);␊ |
| 514 | ␉if (buffer == 0) {␊ |
| 515 | ␉␉break;␊ |
| 516 | ␉}␊ |
| 517 | ␉strlcpy(buffer, (char *)kLoadAddr, length);␊ |
| 518 | ␊ |
| 519 | ␉// Parse the plist.␊ |
| 520 | ␊ |
| 521 | ␉ret = ParseXML(buffer, &module, &personalities);␊ |
| 522 | ␊ |
| 523 | ␉if (ret != 0) {␊ |
| 524 | ␉␉break;␊ |
| 525 | ␉}␊ |
| 526 | ␉// Allocate memory for the driver path and the plist.␊ |
| 527 | ␊ |
| 528 | ␉module->executablePath = tmpExecutablePath;␊ |
| 529 | ␉module->bundlePath = tmpBundlePath;␊ |
| 530 | ␉module->bundlePathLength = bundlePathLength;␊ |
| 531 | ␉module->plistAddr = malloc(length);␊ |
| 532 | ␊ |
| 533 | ␉if ((module->executablePath == 0) || (module->bundlePath == 0) || (module->plistAddr == 0)) {␊ |
| 534 | ␉␉break;␊ |
| 535 | ␉}␊ |
| 536 | ␊ |
| 537 | ␉// Save the driver path in the module.␊ |
| 538 | ␉//strcpy(module->driverPath, tmpDriverPath);␊ |
| 539 | ␉tmpExecutablePath = 0;␊ |
| 540 | ␉tmpBundlePath = 0;␊ |
| 541 | ␊ |
| 542 | ␉// Add the plist to the module.␊ |
| 543 | ␊ |
| 544 | ␉strlcpy(module->plistAddr, (char *)kLoadAddr, length);␊ |
| 545 | ␉module->plistLength = length;␊ |
| 546 | ␊ |
| 547 | ␉// Add the module to the end of the module list.␊ |
| 548 | ␊ |
| 549 | ␉if (gModuleHead == 0) {␊ |
| 550 | ␉␉gModuleHead = module;␊ |
| 551 | ␉} else ␉{␊ |
| 552 | ␉␉gModuleTail->nextModule = module;␊ |
| 553 | ␉}␊ |
| 554 | ␉gModuleTail = module;␊ |
| 555 | ␊ |
| 556 | ␉// Add the persionalities to the personality list.␊ |
| 557 | ␊ |
| 558 | ␉if (personalities) {␊ |
| 559 | ␉␉personalities = personalities->tag;␊ |
| 560 | ␉}␊ |
| 561 | ␉while (personalities != 0)␊ |
| 562 | ␉{␊ |
| 563 | ␉␉if (gPersonalityHead == 0) {␊ |
| 564 | ␉␉␉gPersonalityHead = personalities->tag;␊ |
| 565 | ␉␉} else {␊ |
| 566 | ␉␉␉gPersonalityTail->tagNext = personalities->tag;␊ |
| 567 | ␉␉}␊ |
| 568 | ␊ |
| 569 | ␉␉gPersonalityTail = personalities->tag;␊ |
| 570 | ␉␉personalities = personalities->tagNext;␊ |
| 571 | ␉}␊ |
| 572 | ␊ |
| 573 | ␉ret = 0;␊ |
| 574 | ␉}␊ |
| 575 | ␉while (0);␊ |
| 576 | ␊ |
| 577 | ␉if ( buffer ) {␊ |
| 578 | ␉␉free( buffer );␊ |
| 579 | ␉}␊ |
| 580 | ␉if ( tmpExecutablePath ) {␊ |
| 581 | ␉␉free( tmpExecutablePath );␊ |
| 582 | ␉}␊ |
| 583 | ␉if ( tmpBundlePath ) {␊ |
| 584 | ␉␉free( tmpBundlePath );␊ |
| 585 | ␉}␊ |
| 586 | ␉return ret;␊ |
| 587 | }␊ |
| 588 | ␊ |
| 589 | ␊ |
| 590 | //==========================================================================␊ |
| 591 | // LoadMatchedModules␊ |
| 592 | ␊ |
| 593 | long␊ |
| 594 | LoadMatchedModules( void )␊ |
| 595 | {␊ |
| 596 | ␉TagPtr␉␉ prop;␊ |
| 597 | ␉ModulePtr␉ module;␊ |
| 598 | ␉char␉␉ *fileName, segName[32];␊ |
| 599 | ␉DriverInfoPtr driver;␊ |
| 600 | ␉long␉␉ length, driverAddr, driverLength;␊ |
| 601 | ␉void␉␉ *executableAddr = 0;␊ |
| 602 | ␊ |
| 603 | ␉module = gModuleHead;␊ |
| 604 | ␊ |
| 605 | ␉while (module != 0)␊ |
| 606 | ␉{␊ |
| 607 | ␉␉if (module->willLoad)␊ |
| 608 | ␉␉{␊ |
| 609 | ␉␉␉prop = XMLGetProperty(module->dict, kPropCFBundleExecutable);␊ |
| 610 | ␊ |
| 611 | ␉␉␉if (prop != 0)␊ |
| 612 | ␉␉␉{␊ |
| 613 | ␉␉␉␉fileName = prop->string;␊ |
| 614 | ␉␉␉␉snprintf(gFileSpec, 4096, "%s%s", module->executablePath, fileName);␊ |
| 615 | ␉␉␉␉length = LoadThinFatFile(gFileSpec, &executableAddr);␊ |
| 616 | ␉␉␉␉if (length == 0)␊ |
| 617 | ␉␉␉␉{␊ |
| 618 | ␉␉␉␉␉length = LoadFile(gFileSpec);␊ |
| 619 | ␉␉␉␉␉executableAddr = (void *)kLoadAddr;␊ |
| 620 | ␉␉␉␉}␊ |
| 621 | //␉␉␉␉printf("%s length = %d addr = 0x%x\n", gFileSpec, length, driverModuleAddr); getchar();␊ |
| 622 | ␉␉␉}␊ |
| 623 | ␉␉␉else␊ |
| 624 | ␉␉␉␉length = 0;␊ |
| 625 | ␊ |
| 626 | ␉␉␉if (length != -1)␊ |
| 627 | ␉␉␉{␊ |
| 628 | //␉␉␉␉driverModuleAddr = (void *)kLoadAddr;␊ |
| 629 | //␉␉␉␉if (length != 0)␊ |
| 630 | //␉␉␉␉{␊ |
| 631 | //␉␉␉␉␉ThinFatFile(&driverModuleAddr, &length);␊ |
| 632 | //␉␉␉␉}␊ |
| 633 | ␊ |
| 634 | ␉␉␉␉// Make make in the image area.␊ |
| 635 | ␊ |
| 636 | ␉␉␉␉execute_hook("LoadMatchedModules", module, &length, executableAddr, NULL);␊ |
| 637 | ␊ |
| 638 | ␉␉␉␉driverLength = sizeof(DriverInfo) + module->plistLength + length + module->bundlePathLength;␊ |
| 639 | ␉␉␉␉driverAddr = AllocateKernelMemory(driverLength);␊ |
| 640 | ␊ |
| 641 | ␉␉␉␉// Set up the DriverInfo.␊ |
| 642 | ␉␉␉␉driver = (DriverInfoPtr)driverAddr;␊ |
| 643 | ␉␉␉␉driver->plistAddr = (char *)(driverAddr + sizeof(DriverInfo));␊ |
| 644 | ␉␉␉␉driver->plistLength = module->plistLength;␊ |
| 645 | ␉␉␉␉if (length != 0)␊ |
| 646 | ␉␉␉␉{␊ |
| 647 | ␉␉␉␉␉driver->executableAddr = (void *)(driverAddr + sizeof(DriverInfo) +␊ |
| 648 | ␉␉␉␉␉␉␉␉␉␉ module->plistLength);␊ |
| 649 | ␉␉␉␉␉driver->executableLength = length;␊ |
| 650 | ␉␉␉␉}␊ |
| 651 | ␉␉␉␉else␊ |
| 652 | ␉␉␉␉{␊ |
| 653 | ␉␉␉␉␉driver->executableAddr␉ = 0;␊ |
| 654 | ␉␉␉␉␉driver->executableLength = 0;␊ |
| 655 | ␉␉␉␉}␊ |
| 656 | ␉␉␉␉driver->bundlePathAddr = (void *)(driverAddr + sizeof(DriverInfo) +␊ |
| 657 | ␉␉␉␉␉␉␉␉␉ module->plistLength + driver->executableLength);␊ |
| 658 | ␉␉␉␉driver->bundlePathLength = module->bundlePathLength;␊ |
| 659 | ␊ |
| 660 | ␉␉␉␉// Save the plist, module and bundle.␊ |
| 661 | ␉␉␉␉strcpy(driver->plistAddr, module->plistAddr);␊ |
| 662 | ␉␉␉␉if (length != 0)␊ |
| 663 | ␉␉␉␉{␊ |
| 664 | ␉␉␉␉␉memcpy(driver->executableAddr, executableAddr, length);␊ |
| 665 | ␉␉␉␉}␊ |
| 666 | ␉␉␉␉strcpy(driver->bundlePathAddr, module->bundlePath);␊ |
| 667 | ␊ |
| 668 | ␉␉␉␉// Add an entry to the memory map.␊ |
| 669 | ␉␉␉␉snprintf(segName, sizeof(segName), "Driver-%lx", (unsigned long)driver);␊ |
| 670 | ␉␉␉␉AllocateMemoryRange(segName, driverAddr, driverLength,␊ |
| 671 | ␉␉␉␉␉␉␉␉␉kBootDriverTypeKEXT);␊ |
| 672 | ␉␉␉}␊ |
| 673 | ␉␉}␊ |
| 674 | ␉␉module = module->nextModule;␊ |
| 675 | ␉}␊ |
| 676 | ␊ |
| 677 | ␉return 0;␊ |
| 678 | }␊ |
| 679 | ␊ |
| 680 | //==========================================================================␊ |
| 681 | // MatchPersonalities␊ |
| 682 | ␊ |
| 683 | static long␊ |
| 684 | MatchPersonalities( void )␊ |
| 685 | {␊ |
| 686 | ␉/* IONameMatch support not implemented */␊ |
| 687 | ␉return 0;␊ |
| 688 | }␊ |
| 689 | ␊ |
| 690 | //==========================================================================␊ |
| 691 | // MatchLibraries␊ |
| 692 | ␊ |
| 693 | static long␊ |
| 694 | MatchLibraries( void )␊ |
| 695 | {␊ |
| 696 | ␉TagPtr prop, prop2;␊ |
| 697 | ␉ModulePtr module, module2;␊ |
| 698 | ␉long done;␊ |
| 699 | ␊ |
| 700 | ␉do {␊ |
| 701 | ␉␉done = 1;␊ |
| 702 | ␉␉module = gModuleHead;␊ |
| 703 | ␊ |
| 704 | ␉␉while (module != 0)␊ |
| 705 | ␉␉{␊ |
| 706 | ␉␉␉if (module->willLoad == 1)␊ |
| 707 | ␉␉␉{␊ |
| 708 | ␉␉␉␉prop = XMLGetProperty(module->dict, kPropOSBundleLibraries);␊ |
| 709 | ␊ |
| 710 | ␉␉␉␉if (prop != 0)␊ |
| 711 | ␉␉␉␉{␊ |
| 712 | ␉␉␉␉␉prop = prop->tag;␊ |
| 713 | ␊ |
| 714 | ␉␉␉␉␉while (prop != 0)␊ |
| 715 | ␉␉␉␉␉{␊ |
| 716 | ␉␉␉␉␉␉module2 = gModuleHead;␊ |
| 717 | ␊ |
| 718 | ␉␉␉␉␉␉while (module2 != 0)␊ |
| 719 | ␉␉␉␉␉␉{␊ |
| 720 | ␉␉␉␉␉␉␉prop2 = XMLGetProperty(module2->dict, kPropCFBundleIdentifier);␊ |
| 721 | ␊ |
| 722 | ␉␉␉␉␉␉␉if ((prop2 != 0) && (!strcmp(prop->string, prop2->string)))␊ |
| 723 | ␉␉␉␉␉␉␉{␊ |
| 724 | ␉␉␉␉␉␉␉␉if (module2->willLoad == 0)␊ |
| 725 | ␉␉␉␉␉␉␉␉{␊ |
| 726 | ␉␉␉␉␉␉␉␉␉module2->willLoad = 1;␊ |
| 727 | ␉␉␉␉␉␉␉␉}␊ |
| 728 | ␉␉␉␉␉␉␉␉break;␊ |
| 729 | ␉␉␉␉␉␉␉}␊ |
| 730 | ␉␉␉␉␉␉␉module2 = module2->nextModule;␊ |
| 731 | ␉␉␉␉␉␉}␊ |
| 732 | ␉␉␉␉␉␉prop = prop->tagNext;␊ |
| 733 | ␉␉␉␉␉}␊ |
| 734 | ␉␉␉␉}␊ |
| 735 | ␉␉␉␉module->willLoad = 2;␊ |
| 736 | ␉␉␉␉done = 0;␊ |
| 737 | ␉␉␉}␊ |
| 738 | ␉␉␉module = module->nextModule;␊ |
| 739 | ␉␉}␊ |
| 740 | ␉}␊ |
| 741 | ␉while (!done);␊ |
| 742 | ␊ |
| 743 | ␉return 0;␊ |
| 744 | }␊ |
| 745 | ␊ |
| 746 | ␊ |
| 747 | //==========================================================================␊ |
| 748 | // FindModule␊ |
| 749 | ␊ |
| 750 | #if NOTDEF␊ |
| 751 | static ModulePtr␊ |
| 752 | FindModule( char * name )␊ |
| 753 | {␊ |
| 754 | ␉ModulePtr module;␊ |
| 755 | ␉TagPtr prop;␊ |
| 756 | ␊ |
| 757 | ␉module = gModuleHead;␊ |
| 758 | ␊ |
| 759 | ␉while (module != 0)␊ |
| 760 | ␉{␊ |
| 761 | ␉␉prop = GetProperty(module->dict, kPropCFBundleIdentifier);␊ |
| 762 | ␊ |
| 763 | ␉␉if ((prop != 0) && !strcmp(name, prop->string)) {␊ |
| 764 | ␉␉␉break;␊ |
| 765 | ␉␉}␊ |
| 766 | ␊ |
| 767 | ␉␉module = module->nextModule;␊ |
| 768 | ␉}␊ |
| 769 | ␊ |
| 770 | ␉return module;␊ |
| 771 | }␊ |
| 772 | #endif /* NOTDEF */␊ |
| 773 | ␊ |
| 774 | //==========================================================================␊ |
| 775 | // ParseXML␊ |
| 776 | ␊ |
| 777 | static long␊ |
| 778 | ParseXML( char * buffer, ModulePtr * module, TagPtr * personalities )␊ |
| 779 | {␊ |
| 780 | ␉long length, pos;␊ |
| 781 | ␉TagPtr moduleDict, required;␊ |
| 782 | ␉ModulePtr tmpModule;␊ |
| 783 | ␊ |
| 784 | ␉pos = 0;␊ |
| 785 | ␊ |
| 786 | ␉while (1)␊ |
| 787 | ␉{␊ |
| 788 | ␉␉length = XMLParseNextTag(buffer + pos, &moduleDict);␊ |
| 789 | ␉␉if (length == -1) {␊ |
| 790 | ␉␉␉break;␊ |
| 791 | ␉␉}␊ |
| 792 | ␊ |
| 793 | ␉␉pos += length;␊ |
| 794 | ␊ |
| 795 | ␉␉if (moduleDict == 0) {␊ |
| 796 | ␉␉␉continue;␊ |
| 797 | ␉␉}␊ |
| 798 | ␉␉if (moduleDict->type == kTagTypeDict) {␊ |
| 799 | ␉␉␉break;␊ |
| 800 | ␉␉}␊ |
| 801 | ␉␉XMLFreeTag(moduleDict);␊ |
| 802 | ␉}␊ |
| 803 | ␊ |
| 804 | ␉if (length == -1) {␊ |
| 805 | ␉␉return -1;␊ |
| 806 | ␉}␊ |
| 807 | ␊ |
| 808 | ␉required = XMLGetProperty(moduleDict, kPropOSBundleRequired);␊ |
| 809 | ␊ |
| 810 | ␉if ( (required == 0) || (required->type != kTagTypeString) || !strcmp(required->string, "Safe Boot"))␊ |
| 811 | ␉{␊ |
| 812 | ␉␉XMLFreeTag(moduleDict);␊ |
| 813 | ␉␉return -2;␊ |
| 814 | ␉}␊ |
| 815 | ␊ |
| 816 | ␉tmpModule = malloc(sizeof(Module));␊ |
| 817 | ␉if (tmpModule == 0) {␊ |
| 818 | ␉␉XMLFreeTag(moduleDict);␊ |
| 819 | ␉␉return -1;␊ |
| 820 | ␉}␊ |
| 821 | ␉tmpModule->dict = moduleDict;␊ |
| 822 | ␊ |
| 823 | ␉// For now, load any module that has OSBundleRequired != "Safe Boot".␊ |
| 824 | ␊ |
| 825 | ␉tmpModule->willLoad = 1;␊ |
| 826 | ␊ |
| 827 | ␉*module = tmpModule;␊ |
| 828 | ␊ |
| 829 | ␉// Get the personalities.␊ |
| 830 | ␊ |
| 831 | ␉*personalities = XMLGetProperty(moduleDict, kPropIOKitPersonalities);␊ |
| 832 | ␊ |
| 833 | ␉return 0;␊ |
| 834 | }␊ |
| 835 | ␊ |
| 836 | #if NOTDEF␊ |
| 837 | static char gPlatformName[64];␊ |
| 838 | #endif␊ |
| 839 | ␊ |
| 840 | long␊ |
| 841 | DecodeKernel(void *binary, entry_t *rentry, char **raddr, int *rsize)␊ |
| 842 | {␊ |
| 843 | ␉long ret;␊ |
| 844 | ␉compressed_kernel_header * kernel_header = (compressed_kernel_header *) binary;␊ |
| 845 | ␉u_int32_t uncompressed_size, size;␊ |
| 846 | ␉void *buffer;␊ |
| 847 | ␉unsigned long len;␊ |
| 848 | ␉␊ |
| 849 | #if 0␊ |
| 850 | ␉printf("kernel header:\n");␊ |
| 851 | ␉printf("signature: 0x%x\n", kernel_header->signature);␊ |
| 852 | ␉printf("compress_type: 0x%x\n", kernel_header->compress_type);␊ |
| 853 | ␉printf("adler32: 0x%x\n", kernel_header->adler32);␊ |
| 854 | ␉printf("uncompressed_size: 0x%x\n", kernel_header->uncompressed_size);␊ |
| 855 | ␉printf("compressed_size: 0x%x\n", kernel_header->compressed_size);␊ |
| 856 | ␉getchar();␊ |
| 857 | #endif␊ |
| 858 | ␊ |
| 859 | ␉if (kernel_header->signature == OSSwapBigToHostConstInt32('comp'))␊ |
| 860 | ␉{␊ |
| 861 | ␉␉if (kernel_header->compress_type != OSSwapBigToHostConstInt32('lzss'))␊ |
| 862 | ␉␉{␊ |
| 863 | ␉␉␉error("kernel compression is bad\n");␊ |
| 864 | ␉␉␉return -1;␊ |
| 865 | ␉␉}␊ |
| 866 | #if NOTDEF␊ |
| 867 | ␉␉if (kernel_header->platform_name[0] && strcmp(gPlatformName, kernel_header->platform_name))␊ |
| 868 | ␉␉{␊ |
| 869 | ␉␉␉return -1;␊ |
| 870 | ␉␉}␊ |
| 871 | ␉␉if (kernel_header->root_path[0] && strcmp(gBootFile, kernel_header->root_path))␊ |
| 872 | ␉␉{␊ |
| 873 | ␉␉␉return -1;␊ |
| 874 | ␉␉}␊ |
| 875 | #endif␊ |
| 876 | ␊ |
| 877 | ␉␉uncompressed_size = OSSwapBigToHostInt32(kernel_header->uncompressed_size);␊ |
| 878 | ␉␉binary = buffer = malloc(uncompressed_size);␊ |
| 879 | ␉␉␊ |
| 880 | ␉␉size = decompress_lzss((u_int8_t *) binary, &kernel_header->data[0],␊ |
| 881 | ␉␉␉␉␉␉␉ OSSwapBigToHostInt32(kernel_header->compressed_size));␊ |
| 882 | ␉␉if (uncompressed_size != size) {␊ |
| 883 | ␉␉␉error("size mismatch from lzss: %x\n", size);␊ |
| 884 | ␉␉␉return -1;␊ |
| 885 | ␉␉}␊ |
| 886 | ␉␉␊ |
| 887 | ␉␉if (OSSwapBigToHostInt32(kernel_header->adler32) !=␊ |
| 888 | ␉␉␉Adler32(binary, uncompressed_size))␊ |
| 889 | ␉␉{␊ |
| 890 | ␉␉␉printf("adler mismatch\n");␊ |
| 891 | ␉␉␉return -1;␊ |
| 892 | ␉␉}␊ |
| 893 | ␉}␊ |
| 894 | ␉␊ |
| 895 | ␉ret = ThinFatFile(&binary, &len);␊ |
| 896 | ␉if (ret == 0 && len == 0 && archCpuType==CPU_TYPE_X86_64)␊ |
| 897 | ␉{␊ |
| 898 | ␉␉archCpuType=CPU_TYPE_I386;␊ |
| 899 | ␉␉ret = ThinFatFile(&binary, &len);␊ |
| 900 | ␉}␊ |
| 901 | ␊ |
| 902 | ␉// Notify modules that the kernel has been decompressed, thinned and is about to be decoded␊ |
| 903 | ␉execute_hook("DecodeKernel", (void*)binary, NULL, NULL, NULL);␊ |
| 904 | ␊ |
| 905 | ␉ret = DecodeMachO(binary, rentry, raddr, rsize);␊ |
| 906 | ␉if (ret<0 && archCpuType==CPU_TYPE_X86_64)␊ |
| 907 | ␉{␊ |
| 908 | ␉␉archCpuType=CPU_TYPE_I386;␊ |
| 909 | ␉␉ret = DecodeMachO(binary, rentry, raddr, rsize);␊ |
| 910 | ␉}␊ |
| 911 | ␊ |
| 912 | ␉return ret;␊ |
| 913 | }␊ |
| 914 | |
