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 "bootstruct.h"␊ |
37 | //#include "ramdisk.h"␊ |
38 | #include "boot.h"␊ |
39 | #include "sl.h"␊ |
40 | #include "xml.h"␊ |
41 | #include "modules.h"␊ |
42 | ␊ |
43 | struct Module { ␊ |
44 | struct Module *nextModule;␊ |
45 | long willLoad;␊ |
46 | TagPtr dict;␊ |
47 | char *plistAddr;␊ |
48 | long plistLength;␊ |
49 | char *executablePath;␊ |
50 | char *bundlePath;␊ |
51 | long bundlePathLength;␊ |
52 | };␊ |
53 | typedef struct Module Module, *ModulePtr;␊ |
54 | ␊ |
55 | struct DriverInfo {␊ |
56 | char *plistAddr;␊ |
57 | long plistLength;␊ |
58 | void *executableAddr;␊ |
59 | long executableLength;␊ |
60 | void *bundlePathAddr;␊ |
61 | long bundlePathLength;␊ |
62 | };␊ |
63 | typedef struct DriverInfo DriverInfo, *DriverInfoPtr;␊ |
64 | ␊ |
65 | #define kDriverPackageSignature1 'MKXT'␊ |
66 | #define kDriverPackageSignature2 'MOSX'␊ |
67 | ␊ |
68 | struct DriversPackage {␊ |
69 | unsigned long signature1;␊ |
70 | unsigned long signature2;␊ |
71 | unsigned long length;␊ |
72 | unsigned long alder32;␊ |
73 | unsigned long version;␊ |
74 | unsigned long numDrivers;␊ |
75 | unsigned long reserved1;␊ |
76 | unsigned long reserved2;␊ |
77 | };␊ |
78 | typedef struct DriversPackage DriversPackage;␊ |
79 | ␊ |
80 | enum {␊ |
81 | kCFBundleType2,␊ |
82 | kCFBundleType3␊ |
83 | };␊ |
84 | ␊ |
85 | long (*LoadExtraDrivers_p)(FileLoadDrivers_t FileLoadDrivers_p);␊ |
86 | ␊ |
87 | static unsigned long Alder32( unsigned char * buffer, long length );␊ |
88 | ␊ |
89 | static long FileLoadDrivers(char *dirSpec, long plugin);␊ |
90 | static long NetLoadDrivers(char *dirSpec);␊ |
91 | static long LoadDriverMKext(char *fileSpec);␊ |
92 | static long LoadDriverPList(char *dirSpec, char *name, long bundleType);␊ |
93 | static long LoadMatchedModules(void);␊ |
94 | static long MatchPersonalities(void);␊ |
95 | static long MatchLibraries(void);␊ |
96 | #ifdef NOTDEF␊ |
97 | static ModulePtr FindModule(char *name);␊ |
98 | static void ThinFatFile(void **loadAddrP, unsigned long *lengthP);␊ |
99 | #endif␊ |
100 | static long ParseXML(char *buffer, ModulePtr *module, TagPtr *personalities);␊ |
101 | static long InitDriverSupport(void);␊ |
102 | ␊ |
103 | static ModulePtr gModuleHead, gModuleTail;␊ |
104 | static TagPtr gPersonalityHead, gPersonalityTail;␊ |
105 | static char * gExtensionsSpec;␊ |
106 | static char * gDriverSpec;␊ |
107 | static char * gFileSpec;␊ |
108 | static char * gTempSpec;␊ |
109 | static char * gFileName;␊ |
110 | ␊ |
111 | static unsigned long␊ |
112 | Alder32( unsigned char * buffer, long length )␊ |
113 | {␊ |
114 | long cnt;␊ |
115 | unsigned long result, lowHalf, highHalf;␊ |
116 | ␊ |
117 | lowHalf = 1;␊ |
118 | highHalf = 0;␊ |
119 | ␊ |
120 | ␉for ( cnt = 0; cnt < length; cnt++ )␊ |
121 | {␊ |
122 | if ((cnt % 5000) == 0)␊ |
123 | {␊ |
124 | lowHalf %= 65521L;␊ |
125 | highHalf %= 65521L;␊ |
126 | }␊ |
127 | ␊ |
128 | lowHalf += buffer[cnt];␊ |
129 | highHalf += lowHalf;␊ |
130 | }␊ |
131 | ␊ |
132 | ␉lowHalf %= 65521L;␊ |
133 | ␉highHalf %= 65521L;␊ |
134 | ␊ |
135 | ␉result = (highHalf << 16) | lowHalf;␊ |
136 | ␊ |
137 | ␉return result;␊ |
138 | }␊ |
139 | ␊ |
140 | ␊ |
141 | //==========================================================================␊ |
142 | // InitDriverSupport␊ |
143 | ␊ |
144 | static long␊ |
145 | InitDriverSupport( void )␊ |
146 | {␊ |
147 | gExtensionsSpec = malloc( 4096 );␊ |
148 | gDriverSpec = malloc( 4096 );␊ |
149 | gFileSpec = malloc( 4096 );␊ |
150 | gTempSpec = malloc( 4096 );␊ |
151 | gFileName = malloc( 4096 );␊ |
152 | ␊ |
153 | if ( !gExtensionsSpec || !gDriverSpec || !gFileSpec || !gTempSpec || !gFileName )␊ |
154 | stop("InitDriverSupport error");␊ |
155 | ␊ |
156 | return 0;␊ |
157 | }␊ |
158 | ␊ |
159 | //==========================================================================␊ |
160 | // LoadDrivers␊ |
161 | ␊ |
162 | long LoadDrivers( char * dirSpec )␊ |
163 | {␊ |
164 | ␉char␉␉dirSpecExtra[128];␊ |
165 | ␉const char *override_pathfolder = NULL; // full path to a folder.␊ |
166 | ␉int␉␉␉fd = 0, len = 0;␊ |
167 | ␉␊ |
168 | ␉if ( InitDriverSupport() != 0 )␊ |
169 | ␉␉return 0;␊ |
170 | ␉␊ |
171 | ␉// Load extra drivers if a hook has been installed.␊ |
172 | ␉if (LoadExtraDrivers_p != NULL)␊ |
173 | ␉{␊ |
174 | ␉␉(*LoadExtraDrivers_p)(&FileLoadDrivers);␊ |
175 | ␉}␊ |
176 | ␉␊ |
177 | ␉if ( gBootFileType == kNetworkDeviceType )␊ |
178 | ␉{␊ |
179 | ␉␉if (NetLoadDrivers(dirSpec) != 0)␊ |
180 | ␉␉{␊ |
181 | ␉␉␉error("Could not load drivers from the network\n");␊ |
182 | ␉␉␉return -1;␊ |
183 | ␉␉}␊ |
184 | ␉}␊ |
185 | ␉else if ( gBootFileType == kBlockDeviceType )␊ |
186 | ␉{␊ |
187 | ␉␉// Take in account user overriding. - does this still work ???␊ |
188 | ␉␉if (getValueForKey(kAltExtensionsKey, &override_pathfolder, &len, &bootInfo->bootConfig))␊ |
189 | ␉␉{␊ |
190 | ␉␉␉// Specify a path to a folder, ending with / e.g. kext=/Extra/testkext/␊ |
191 | ␉␉␉strcpy(dirSpecExtra, override_pathfolder);␊ |
192 | ␉␉␉fd = FileLoadDrivers(dirSpecExtra, 0);␊ |
193 | ␉␉␉if (fd >= 0) goto success_fd;␊ |
194 | ␉␉}␊ |
195 | ␉␉␊ |
196 | ␉␉// No need to specify (gRAMDiskVolume && !gRAMDiskBTAliased).␊ |
197 | ␉␉// First try to load Extra extensions from a ramdisk if isn't aliased as bt(0,0).␊ |
198 | ␉␉strcpy(dirSpecExtra, "rd(0,0)/"); // check it's "root".␊ |
199 | ␉␉fd = FileLoadDrivers(dirSpecExtra, 0);␊ |
200 | ␉␉if (fd >= 0) goto success_fd;␊ |
201 | ␉␉␊ |
202 | ␉␉// Also no need to specify (gRAMDiskVolume && gRAMDiskBTAliased); checking paths on a␊ |
203 | ␉␉// ramdisk aliased as bt(0,0) (rdbt), is the same as checking paths on booter volume. ␊ |
204 | ␉␉// In this case the following two will point to the ramdisk.␊ |
205 | ␉␉␊ |
206 | ␉␉// Check booter volume/rdbt Extra for specific OS files, on specific OS folders.␊ |
207 | ␉␉sprintf(dirSpecExtra, "bt(0,0)/Extra/%s/", &gMacOSVersion);␊ |
208 | ␉␉fd = FileLoadDrivers(dirSpecExtra, 0);␊ |
209 | ␉␉if (fd >= 0) goto success_fd;␊ |
210 | ␉␉␊ |
211 | ␉␉// Removed /Extra path from search algo. If needed can be specified with override key!␊ |
212 | ␉␉␊ |
213 | ␉␉// Check booter volume/rdbt Extra in case we don't keep specific OS folders.␊ |
214 | ␉␉strcpy(dirSpecExtra, "bt(0,0)/Extra/");␊ |
215 | ␉␉fd = FileLoadDrivers(dirSpecExtra, 0);␊ |
216 | ␉␉if (fd >= 0) goto success_fd;␊ |
217 | ␉␉␊ |
218 | ␉␉// Also try to load Extensions from boot helper partitions.␊ |
219 | ␉␉if (gBootVolume->flags & kBVFlagBooter)␊ |
220 | ␉␉{␊ |
221 | ␉␉␉strcpy(dirSpecExtra, "/com.apple.boot.P/System/Library/");␊ |
222 | ␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0)␊ |
223 | ␉␉␉{␊ |
224 | ␉␉␉␉strcpy(dirSpecExtra, "/com.apple.boot.R/System/Library/");␊ |
225 | ␉␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0)␊ |
226 | ␉␉␉␉{␊ |
227 | ␉␉␉␉␉strcpy(dirSpecExtra, "/com.apple.boot.S/System/Library/");␊ |
228 | ␉␉␉␉␉FileLoadDrivers(dirSpecExtra, 0);␊ |
229 | ␉␉␉␉}␊ |
230 | ␉␉␉}␊ |
231 | ␉␉}␊ |
232 | ␉␉␊ |
233 | success_fd:␊ |
234 | ␉␉// if user initialized gMKextName ("MKext Cache" flag)...␊ |
235 | ␉␉if (gMKextName[0] != '\0')␊ |
236 | ␉␉{␊ |
237 | ␉␉␉verbose("LoadDrivers: Loading from [%s]\n", gMKextName);␊ |
238 | ␉␉␉if ( LoadDriverMKext(gMKextName) != 0 )␊ |
239 | ␉␉␉{␊ |
240 | ␉␉␉␉error("Could not load %s\n", gMKextName);␊ |
241 | ␉␉␉␉return -1;␊ |
242 | ␉␉␉}␊ |
243 | ␉␉}␊ |
244 | ␉␉else // else load kext cache from default paths.␊ |
245 | ␉␉{␊ |
246 | ␉␉␉strcpy(gExtensionsSpec, dirSpec); // = "/"␊ |
247 | ␉␉␉strcat(gExtensionsSpec, "System/Library/"); // "/" + "System/Library/"␊ |
248 | ␉␉␉FileLoadDrivers(gExtensionsSpec, 0); // "/System/Library/" - legacy path␊ |
249 | ␉␉}␊ |
250 | ␉}␊ |
251 | ␉else␊ |
252 | ␉{␊ |
253 | ␉␉return 0;␊ |
254 | ␉}␊ |
255 | ␉␊ |
256 | ␉MatchPersonalities();␊ |
257 | ␉␊ |
258 | ␉MatchLibraries();␊ |
259 | ␉␊ |
260 | ␉LoadMatchedModules();␊ |
261 | ␉␊ |
262 | ␉return 0;␊ |
263 | }␊ |
264 | ␊ |
265 | //==========================================================================␊ |
266 | // FileLoadMKext␊ |
267 | ␊ |
268 | static long␊ |
269 | FileLoadMKext( const char * dirSpec, const char * extDirSpec )␊ |
270 | {␊ |
271 | ␉long␉ret, flags, time, time2;␊ |
272 | ␉char␉altDirSpec[512];␊ |
273 | ␉␊ |
274 | ␉sprintf (altDirSpec, "%s%s", dirSpec, extDirSpec);␊ |
275 | ␉ret = GetFileInfo(altDirSpec, "Extensions.mkext", &flags, &time);␊ |
276 | ␉msglog("(%s) Extensions.mkext time = %d\n", __FUNCTION__, time);␊ |
277 | ␉␊ |
278 | ␉if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeFlat))␊ |
279 | ␉{␊ |
280 | ␉␉ret = GetFileInfo(dirSpec, "Extensions", &flags, &time2);␊ |
281 | ␉␉//Azi: hum... finaly got it :P␊ |
282 | ␉␉verbose("(%s) Extensions time +1 = %d\n", __FUNCTION__, time2 + 1);␊ |
283 | ␉␉␊ |
284 | ␉␉if ((ret != 0)␊ |
285 | ␉␉␉|| ((flags & kFileTypeMask) != kFileTypeDirectory)␊ |
286 | ␉␉␉|| (((gBootMode & kBootModeSafe) == 0) && (time == (time2 + 1))))␊ |
287 | ␉␉{␊ |
288 | ␉␉␉sprintf(gDriverSpec, "%sExtensions.mkext", altDirSpec);␊ |
289 | ␉␉␉//Azi: hum... finaly got it :P␊ |
290 | ␉␉␉msglog("LoadDrivers: Loading from [%s]\n", gDriverSpec);␊ |
291 | ␉␉␉␊ |
292 | ␉␉␉if (LoadDriverMKext(gDriverSpec) == 0)␊ |
293 | ␉␉␉␉return 0;␊ |
294 | ␉␉}␊ |
295 | ␉}␊ |
296 | ␉return -1;␊ |
297 | }␊ |
298 | ␊ |
299 | //==========================================================================␊ |
300 | // FileLoadDrivers␊ |
301 | ␊ |
302 | static long␊ |
303 | FileLoadDrivers( char * dirSpec, long plugin )␊ |
304 | {␊ |
305 | long ret, length, flags, time, bundleType;␊ |
306 | long long␉ index;␊ |
307 | long result = -1;␊ |
308 | const char * name;␊ |
309 | ␊ |
310 | if ( !plugin )␊ |
311 | {␊ |
312 | // First try 10.6's path for loading Extensions.mkext.␊ |
313 | if (FileLoadMKext(dirSpec, "Caches/com.apple.kext.caches/Startup/") == 0)␊ |
314 | ␉␉␉return 0; // "bt(0,0)/Extra/10.6/"␊ |
315 | ␊ |
316 | // Next try the legacy path.␊ |
317 | else if (FileLoadMKext(dirSpec, "") == 0)␊ |
318 | return 0;␊ |
319 | ␊ |
320 | strcat(dirSpec, "Extensions");␊ |
321 | }␊ |
322 | ␊ |
323 | index = 0;␊ |
324 | while (1) {␊ |
325 | ␉␉␊ |
326 | ret = GetDirEntry(dirSpec, &index, &name, &flags, &time);␊ |
327 | if (ret == -1) break;␊ |
328 | ␊ |
329 | // Make sure this is a directory.␊ |
330 | if ((flags & kFileTypeMask) != kFileTypeDirectory) continue;␊ |
331 | ␊ |
332 | // Make sure this is a kext.␊ |
333 | length = strlen(name);␊ |
334 | if (strcmp(name + length - 5, ".kext")) continue;␊ |
335 | ␊ |
336 | // Save the file name.␊ |
337 | strcpy(gFileName, name);␊ |
338 | ␊ |
339 | // Determine the bundle type.␊ |
340 | sprintf(gTempSpec, "%s/%s", dirSpec, gFileName);␊ |
341 | ret = GetFileInfo(gTempSpec, "Contents", &flags, &time);␊ |
342 | if (ret == 0) bundleType = kCFBundleType2;␊ |
343 | else bundleType = kCFBundleType3;␊ |
344 | ␊ |
345 | if (!plugin)␊ |
346 | sprintf(gDriverSpec, "%s/%s/%sPlugIns", dirSpec, gFileName,␊ |
347 | (bundleType == kCFBundleType2) ? "Contents/" : "");␊ |
348 | ␊ |
349 | ret = LoadDriverPList(dirSpec, gFileName, bundleType);␊ |
350 | ␊ |
351 | if (result != 0)␊ |
352 | result = ret;␊ |
353 | ␊ |
354 | if (!plugin) ␊ |
355 | FileLoadDrivers(gDriverSpec, 1);␊ |
356 | }␊ |
357 | ␊ |
358 | return result;␊ |
359 | }␊ |
360 | ␊ |
361 | //==========================================================================␊ |
362 | // ␊ |
363 | ␊ |
364 | static long␊ |
365 | NetLoadDrivers( char * dirSpec )␊ |
366 | {␊ |
367 | long tries;␊ |
368 | ␊ |
369 | #if NODEF␊ |
370 | long cnt;␊ |
371 | ␊ |
372 | // Get the name of the kernel␊ |
373 | cnt = strlen(gBootFile);␊ |
374 | while (cnt--) {␊ |
375 | if ((gBootFile[cnt] == '\\') || (gBootFile[cnt] == ',')) {␊ |
376 | cnt++;␊ |
377 | break;␊ |
378 | }␊ |
379 | }␊ |
380 | #endif␊ |
381 | ␊ |
382 | // INTEL modification␊ |
383 | sprintf(gDriverSpec, "%s%s.mkext", dirSpec, bootInfo->bootFile);␊ |
384 | ␊ |
385 | verbose("NetLoadDrivers: Loading from [%s]\n", gDriverSpec);␊ |
386 | ␊ |
387 | tries = 3;␊ |
388 | while (tries--)␊ |
389 | {␊ |
390 | if (LoadDriverMKext(gDriverSpec) == 0) break;␊ |
391 | }␊ |
392 | if (tries == -1) return -1;␊ |
393 | ␊ |
394 | return 0;␊ |
395 | }␊ |
396 | ␊ |
397 | //==========================================================================␊ |
398 | // loadDriverMKext␊ |
399 | ␊ |
400 | static long␊ |
401 | LoadDriverMKext( char * fileSpec )␊ |
402 | {␊ |
403 | unsigned long driversAddr, driversLength;␊ |
404 | long length;␊ |
405 | char segName[32];␊ |
406 | DriversPackage * package;␊ |
407 | ␊ |
408 | #define GetPackageElement(e) OSSwapBigToHostInt32(package->e)␊ |
409 | ␊ |
410 | // Load the MKext.␊ |
411 | length = LoadThinFatFile(fileSpec, (void **)&package);␊ |
412 | if (length < sizeof (DriversPackage)) return -1;␊ |
413 | ␊ |
414 | ␉// call hook to notify modules that the mkext has been loaded␊ |
415 | ␉execute_hook("LoadDriverMKext", (void*)fileSpec, (void*)package, (void*) &length, NULL);␊ |
416 | ␊ |
417 | ␉␊ |
418 | // Verify the MKext.␊ |
419 | if (( GetPackageElement(signature1) != kDriverPackageSignature1) ||␊ |
420 | ( GetPackageElement(signature2) != kDriverPackageSignature2) ||␊ |
421 | ( GetPackageElement(length) > kLoadSize ) ||␊ |
422 | ( GetPackageElement(alder32) !=␊ |
423 | Alder32((unsigned char *)&package->version, GetPackageElement(length) - 0x10) ) )␊ |
424 | {␊ |
425 | return -1;␊ |
426 | }␊ |
427 | ␊ |
428 | // Make space for the MKext.␊ |
429 | driversLength = GetPackageElement(length);␊ |
430 | driversAddr = AllocateKernelMemory(driversLength);␊ |
431 | ␊ |
432 | // Copy the MKext.␊ |
433 | memcpy((void *)driversAddr, (void *)package, driversLength);␊ |
434 | ␊ |
435 | // Add the MKext to the memory map.␊ |
436 | sprintf(segName, "DriversPackage-%lx", driversAddr);␊ |
437 | AllocateMemoryRange(segName, driversAddr, driversLength,␊ |
438 | kBootDriverTypeMKEXT);␊ |
439 | ␊ |
440 | return 0;␊ |
441 | }␊ |
442 | ␊ |
443 | //==========================================================================␊ |
444 | // LoadDriverPList␊ |
445 | ␊ |
446 | static long␊ |
447 | LoadDriverPList( char * dirSpec, char * name, long bundleType )␊ |
448 | {␊ |
449 | long length, executablePathLength, bundlePathLength;␊ |
450 | ModulePtr module;␊ |
451 | TagPtr personalities;␊ |
452 | char * buffer = 0;␊ |
453 | char * tmpExecutablePath = 0;␊ |
454 | char * tmpBundlePath = 0;␊ |
455 | long ret = -1;␊ |
456 | ␊ |
457 | do {␊ |
458 | // Save the driver path.␊ |
459 | ␊ |
460 | sprintf(gFileSpec, "%s/%s/%s", dirSpec, name,␊ |
461 | (bundleType == kCFBundleType2) ? "Contents/MacOS/" : "");␊ |
462 | executablePathLength = strlen(gFileSpec) + 1;␊ |
463 | ␊ |
464 | tmpExecutablePath = malloc(executablePathLength);␊ |
465 | if (tmpExecutablePath == 0) break;␊ |
466 | ␊ |
467 | strcpy(tmpExecutablePath, gFileSpec);␊ |
468 | ␊ |
469 | sprintf(gFileSpec, "%s/%s", dirSpec, name);␊ |
470 | bundlePathLength = strlen(gFileSpec) + 1;␊ |
471 | ␊ |
472 | tmpBundlePath = malloc(bundlePathLength);␊ |
473 | if (tmpBundlePath == 0) break;␊ |
474 | ␊ |
475 | strcpy(tmpBundlePath, gFileSpec);␊ |
476 | ␊ |
477 | // Construct the file spec to the plist, then load it.␊ |
478 | ␊ |
479 | sprintf(gFileSpec, "%s/%s/%sInfo.plist", dirSpec, name,␊ |
480 | (bundleType == kCFBundleType2) ? "Contents/" : "");␊ |
481 | ␊ |
482 | length = LoadFile(gFileSpec);␊ |
483 | if (length == -1) break;␊ |
484 | ␊ |
485 | length = length + 1;␊ |
486 | buffer = malloc(length);␊ |
487 | if (buffer == 0) break;␊ |
488 | ␊ |
489 | strlcpy(buffer, (char *)kLoadAddr, length);␊ |
490 | ␊ |
491 | // Parse the plist.␊ |
492 | ␊ |
493 | ret = ParseXML(buffer, &module, &personalities);␊ |
494 | if (ret != 0) { break; }␊ |
495 | ␊ |
496 | // Allocate memory for the driver path and the plist.␊ |
497 | ␊ |
498 | module->executablePath = tmpExecutablePath;␊ |
499 | module->bundlePath = tmpBundlePath;␊ |
500 | module->bundlePathLength = bundlePathLength;␊ |
501 | module->plistAddr = malloc(length);␊ |
502 | ␊ |
503 | if ((module->executablePath == 0) || (module->bundlePath == 0) || (module->plistAddr == 0))␊ |
504 | break;␊ |
505 | ␊ |
506 | // Save the driver path in the module.␊ |
507 | //strcpy(module->driverPath, tmpDriverPath);␊ |
508 | tmpExecutablePath = 0;␊ |
509 | tmpBundlePath = 0;␊ |
510 | ␊ |
511 | // Add the plist to the module.␊ |
512 | ␊ |
513 | strlcpy(module->plistAddr, (char *)kLoadAddr, length);␊ |
514 | module->plistLength = length;␊ |
515 | ␊ |
516 | // Add the module to the end of the module list.␊ |
517 | ␊ |
518 | if (gModuleHead == 0)␊ |
519 | gModuleHead = module;␊ |
520 | else␊ |
521 | gModuleTail->nextModule = module;␊ |
522 | gModuleTail = module;␊ |
523 | ␊ |
524 | // Add the persionalities to the personality list.␊ |
525 | ␊ |
526 | if (personalities) personalities = personalities->tag;␊ |
527 | while (personalities != 0)␊ |
528 | {␊ |
529 | if (gPersonalityHead == 0)␊ |
530 | gPersonalityHead = personalities->tag;␊ |
531 | else␊ |
532 | gPersonalityTail->tagNext = personalities->tag;␊ |
533 | ␊ |
534 | gPersonalityTail = personalities->tag;␊ |
535 | personalities = personalities->tagNext;␊ |
536 | }␊ |
537 | ␊ |
538 | ret = 0;␊ |
539 | }␊ |
540 | while (0);␊ |
541 | ␊ |
542 | if ( buffer ) free( buffer );␊ |
543 | if ( tmpExecutablePath ) free( tmpExecutablePath );␊ |
544 | if ( tmpBundlePath ) free( tmpBundlePath );␊ |
545 | ␊ |
546 | return ret;␊ |
547 | }␊ |
548 | ␊ |
549 | ␊ |
550 | //==========================================================================␊ |
551 | // LoadMatchedModules␊ |
552 | ␊ |
553 | static long␊ |
554 | LoadMatchedModules( void )␊ |
555 | {␊ |
556 | TagPtr prop;␊ |
557 | ModulePtr module;␊ |
558 | char *fileName, segName[32];␊ |
559 | DriverInfoPtr driver;␊ |
560 | long length, driverAddr, driverLength;␊ |
561 | void *executableAddr = 0;␊ |
562 | ␊ |
563 | ␊ |
564 | module = gModuleHead;␊ |
565 | ␊ |
566 | while (module != 0)␊ |
567 | {␊ |
568 | if (module->willLoad)␊ |
569 | {␊ |
570 | prop = XMLGetProperty(module->dict, kPropCFBundleExecutable);␊ |
571 | ␊ |
572 | if (prop != 0)␊ |
573 | {␊ |
574 | fileName = prop->string;␊ |
575 | sprintf(gFileSpec, "%s%s", module->executablePath, fileName);␊ |
576 | length = LoadThinFatFile(gFileSpec, &executableAddr);␊ |
577 | ␉␉␉␉if (length == 0)␊ |
578 | ␉␉␉␉{␊ |
579 | ␉␉␉␉␉length = LoadFile(gFileSpec);␊ |
580 | ␉␉␉␉␉executableAddr = (void *)kLoadAddr;␊ |
581 | ␉␉␉␉}␊ |
582 | //printf("%s length = %d addr = 0x%x\n", gFileSpec, length, driverModuleAddr); getc();␊ |
583 | }␊ |
584 | else␊ |
585 | length = 0;␊ |
586 | ␊ |
587 | if (length != -1)␊ |
588 | {␊ |
589 | ␉␉//driverModuleAddr = (void *)kLoadAddr;␊ |
590 | //if (length != 0)␊ |
591 | //{␊ |
592 | ␉␉// ThinFatFile(&driverModuleAddr, &length);␊ |
593 | ␉␉//}␊ |
594 | ␊ |
595 | // Make make in the image area.␊ |
596 | driverLength = sizeof(DriverInfo) + module->plistLength + length + module->bundlePathLength;␊ |
597 | driverAddr = AllocateKernelMemory(driverLength);␊ |
598 | ␊ |
599 | // Set up the DriverInfo.␊ |
600 | driver = (DriverInfoPtr)driverAddr;␊ |
601 | driver->plistAddr = (char *)(driverAddr + sizeof(DriverInfo));␊ |
602 | driver->plistLength = module->plistLength;␊ |
603 | if (length != 0)␊ |
604 | {␊ |
605 | driver->executableAddr = (void *)(driverAddr + sizeof(DriverInfo) +␊ |
606 | ␉␉␉␉␉ module->plistLength);␊ |
607 | driver->executableLength = length;␊ |
608 | }␊ |
609 | else␊ |
610 | {␊ |
611 | driver->executableAddr = 0;␊ |
612 | driver->executableLength = 0;␊ |
613 | }␊ |
614 | driver->bundlePathAddr = (void *)(driverAddr + sizeof(DriverInfo) +␊ |
615 | ␉␉␉␉ module->plistLength + driver->executableLength);␊ |
616 | driver->bundlePathLength = module->bundlePathLength;␊ |
617 | ␊ |
618 | // Save the plist, module and bundle.␊ |
619 | strcpy(driver->plistAddr, module->plistAddr);␊ |
620 | if (length != 0)␊ |
621 | {␊ |
622 | memcpy(driver->executableAddr, executableAddr, length);␊ |
623 | }␊ |
624 | strcpy(driver->bundlePathAddr, module->bundlePath);␊ |
625 | ␊ |
626 | // Add an entry to the memory map.␊ |
627 | sprintf(segName, "Driver-%lx", (unsigned long)driver);␊ |
628 | AllocateMemoryRange(segName, driverAddr, driverLength,␊ |
629 | kBootDriverTypeKEXT);␊ |
630 | }␊ |
631 | }␊ |
632 | module = module->nextModule;␊ |
633 | }␊ |
634 | ␊ |
635 | return 0;␊ |
636 | }␊ |
637 | ␊ |
638 | //==========================================================================␊ |
639 | // MatchPersonalities␊ |
640 | ␊ |
641 | static long␊ |
642 | MatchPersonalities( void )␊ |
643 | {␊ |
644 | /* IONameMatch support not implemented */␊ |
645 | return 0;␊ |
646 | }␊ |
647 | ␊ |
648 | //==========================================================================␊ |
649 | // MatchLibraries␊ |
650 | ␊ |
651 | static long␊ |
652 | MatchLibraries( void )␊ |
653 | {␊ |
654 | TagPtr prop, prop2;␊ |
655 | ModulePtr module, module2;␊ |
656 | long done;␊ |
657 | ␊ |
658 | do {␊ |
659 | done = 1;␊ |
660 | module = gModuleHead;␊ |
661 | ␊ |
662 | while (module != 0)␊ |
663 | {␊ |
664 | if (module->willLoad == 1)␊ |
665 | {␊ |
666 | prop = XMLGetProperty(module->dict, kPropOSBundleLibraries);␊ |
667 | if (prop != 0)␊ |
668 | {␊ |
669 | prop = prop->tag;␊ |
670 | while (prop != 0)␊ |
671 | {␊ |
672 | module2 = gModuleHead;␊ |
673 | while (module2 != 0)␊ |
674 | {␊ |
675 | prop2 = XMLGetProperty(module2->dict, kPropCFBundleIdentifier);␊ |
676 | if ((prop2 != 0) && (!strcmp(prop->string, prop2->string)))␊ |
677 | {␊ |
678 | if (module2->willLoad == 0) module2->willLoad = 1;␊ |
679 | break;␊ |
680 | }␊ |
681 | module2 = module2->nextModule;␊ |
682 | }␊ |
683 | prop = prop->tagNext;␊ |
684 | }␊ |
685 | }␊ |
686 | module->willLoad = 2;␊ |
687 | done = 0;␊ |
688 | }␊ |
689 | module = module->nextModule;␊ |
690 | }␊ |
691 | }␊ |
692 | while (!done);␊ |
693 | ␊ |
694 | return 0;␊ |
695 | }␊ |
696 | ␊ |
697 | ␊ |
698 | //==========================================================================␊ |
699 | // FindModule␊ |
700 | ␊ |
701 | #if NOTDEF␊ |
702 | static ModulePtr␊ |
703 | FindModule( char * name )␊ |
704 | {␊ |
705 | ModulePtr module;␊ |
706 | TagPtr prop;␊ |
707 | ␊ |
708 | module = gModuleHead;␊ |
709 | ␊ |
710 | while (module != 0)␊ |
711 | {␊ |
712 | prop = GetProperty(module->dict, kPropCFBundleIdentifier);␊ |
713 | if ((prop != 0) && !strcmp(name, prop->string)) break;␊ |
714 | module = module->nextModule;␊ |
715 | }␊ |
716 | ␊ |
717 | return module;␊ |
718 | }␊ |
719 | #endif /* NOTDEF */␊ |
720 | ␊ |
721 | //==========================================================================␊ |
722 | // ParseXML␊ |
723 | ␊ |
724 | static long␊ |
725 | ParseXML( char * buffer, ModulePtr * module, TagPtr * personalities )␊ |
726 | {␊ |
727 | ␉long length, pos;␊ |
728 | ␉TagPtr moduleDict, required;␊ |
729 | ␉ModulePtr tmpModule;␊ |
730 | ␊ |
731 | pos = 0;␊ |
732 | ␊ |
733 | while (1)␊ |
734 | {␊ |
735 | length = XMLParseNextTag(buffer + pos, &moduleDict);␊ |
736 | if (length == -1) break;␊ |
737 | ␊ |
738 | pos += length;␊ |
739 | ␊ |
740 | if (moduleDict == 0) continue;␊ |
741 | if (moduleDict->type == kTagTypeDict) break;␊ |
742 | ␊ |
743 | XMLFreeTag(moduleDict);␊ |
744 | }␊ |
745 | ␊ |
746 | if (length == -1) return -1;␊ |
747 | ␊ |
748 | required = XMLGetProperty(moduleDict, kPropOSBundleRequired);␊ |
749 | if ( (required == 0) ||␊ |
750 | (required->type != kTagTypeString) ||␊ |
751 | !strcmp(required->string, "Safe Boot"))␊ |
752 | {␊ |
753 | XMLFreeTag(moduleDict);␊ |
754 | return -2;␊ |
755 | }␊ |
756 | ␊ |
757 | tmpModule = malloc(sizeof(Module));␊ |
758 | if (tmpModule == 0)␊ |
759 | {␊ |
760 | XMLFreeTag(moduleDict);␊ |
761 | return -1;␊ |
762 | }␊ |
763 | tmpModule->dict = moduleDict;␊ |
764 | ␊ |
765 | // For now, load any module that has OSBundleRequired != "Safe Boot".␊ |
766 | ␊ |
767 | tmpModule->willLoad = 1;␊ |
768 | ␊ |
769 | *module = tmpModule;␊ |
770 | ␊ |
771 | // Get the personalities.␊ |
772 | ␊ |
773 | *personalities = XMLGetProperty(moduleDict, kPropIOKitPersonalities);␊ |
774 | ␊ |
775 | return 0;␊ |
776 | }␊ |
777 | ␊ |
778 | #if NOTDEF␊ |
779 | static char gPlatformName[64];␊ |
780 | #endif␊ |
781 | ␊ |
782 | long ␊ |
783 | DecodeKernel(void *binary, entry_t *rentry, char **raddr, int *rsize)␊ |
784 | {␊ |
785 | long ret;␊ |
786 | compressed_kernel_header * kernel_header = (compressed_kernel_header *) binary;␊ |
787 | u_int32_t uncompressed_size, size;␊ |
788 | void *buffer;␊ |
789 | ␉unsigned long len;␊ |
790 | ␊ |
791 | #if 0␊ |
792 | printf("kernel header:\n");␊ |
793 | printf("signature: 0x%x\n", kernel_header->signature);␊ |
794 | printf("compress_type: 0x%x\n", kernel_header->compress_type);␊ |
795 | printf("adler32: 0x%x\n", kernel_header->adler32);␊ |
796 | printf("uncompressed_size: 0x%x\n", kernel_header->uncompressed_size);␊ |
797 | printf("compressed_size: 0x%x\n", kernel_header->compressed_size);␊ |
798 | getc();␊ |
799 | #endif␊ |
800 | ␊ |
801 | if (kernel_header->signature == OSSwapBigToHostConstInt32('comp')) {␊ |
802 | if (kernel_header->compress_type != OSSwapBigToHostConstInt32('lzss')) {␊ |
803 | error("kernel compression is bad\n");␊ |
804 | return -1;␊ |
805 | }␊ |
806 | #if NOTDEF␊ |
807 | if (kernel_header->platform_name[0] && strcmp(gPlatformName, kernel_header->platform_name))␊ |
808 | return -1;␊ |
809 | if (kernel_header->root_path[0] && strcmp(gBootFile, kernel_header->root_path))␊ |
810 | return -1;␊ |
811 | #endif␊ |
812 | ␊ |
813 | uncompressed_size = OSSwapBigToHostInt32(kernel_header->uncompressed_size);␊ |
814 | binary = buffer = malloc(uncompressed_size);␊ |
815 | ␊ |
816 | size = decompress_lzss((u_int8_t *) binary, &kernel_header->data[0],␊ |
817 | OSSwapBigToHostInt32(kernel_header->compressed_size));␊ |
818 | if (uncompressed_size != size) {␊ |
819 | error("size mismatch from lzss: %x\n", size);␊ |
820 | return -1;␊ |
821 | }␊ |
822 | if (OSSwapBigToHostInt32(kernel_header->adler32) !=␊ |
823 | Alder32(binary, uncompressed_size)) {␊ |
824 | printf("adler mismatch\n");␊ |
825 | return -1;␊ |
826 | }␊ |
827 | }␊ |
828 | ␊ |
829 | ret = ThinFatFile(&binary, &len);␊ |
830 | if (ret == 0 && len == 0 && archCpuType==CPU_TYPE_X86_64)␊ |
831 | {␊ |
832 | ␉ archCpuType=CPU_TYPE_I386;␊ |
833 | ␉ ret = ThinFatFile(&binary, &len);␊ |
834 | }␊ |
835 | ␊ |
836 | ret = DecodeMachO(binary, rentry, raddr, rsize);␊ |
837 | ␉␊ |
838 | if (ret<0 && archCpuType==CPU_TYPE_X86_64)␊ |
839 | {␊ |
840 | ␉ archCpuType=CPU_TYPE_I386;␊ |
841 | ␉ ret = DecodeMachO(binary, rentry, raddr, rsize);␊ |
842 | }␊ |
843 | ␊ |
844 | return ret;␊ |
845 | }␊ |
846 | |