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 "drivers.h"␊ |
41 | #include "modules.h"␊ |
42 | ␊ |
43 | extern char gMacOSVersion[];␊ |
44 | extern char gBootKernelCacheFile[];␊ |
45 | long FileLoadDrivers(char *dirSpec, long plugin);␊ |
46 | #ifdef NBP_SUPPORT␊ |
47 | long NetLoadDrivers(char *dirSpec);␊ |
48 | #endif␊ |
49 | long LoadDriverMKext(char *fileSpec);␊ |
50 | long LoadDriverPList(char *dirSpec, char *name, long bundleType);␊ |
51 | long LoadMatchedModules(void);␊ |
52 | #if UNUSED␊ |
53 | long MatchPersonalities(void);␊ |
54 | #endif␊ |
55 | long MatchLibraries(void);␊ |
56 | ␊ |
57 | static long ParseXML(char *buffer, ModulePtr *module, TagPtr *personalities);␊ |
58 | long InitDriverSupport(void);␊ |
59 | ␊ |
60 | static ModulePtr gModuleHead, gModuleTail;␊ |
61 | static TagPtr gPersonalityHead, gPersonalityTail;␊ |
62 | char * gExtensionsSpec;␊ |
63 | char * gDriverSpec;␊ |
64 | char * gFileSpec;␊ |
65 | char * gTempSpec;␊ |
66 | char * gFileName;␊ |
67 | ␊ |
68 | //==========================================================================␊ |
69 | // InitDriverSupport␊ |
70 | ␊ |
71 | long␊ |
72 | InitDriverSupport( void )␊ |
73 | {␊ |
74 | gExtensionsSpec = malloc( 4096 );␊ |
75 | gDriverSpec = malloc( 4096 );␊ |
76 | gFileSpec = malloc( 4096 );␊ |
77 | gTempSpec = malloc( 4096 );␊ |
78 | gFileName = malloc( 4096 );␊ |
79 | ␉␊ |
80 | if ( !gExtensionsSpec || !gDriverSpec || !gFileSpec || !gTempSpec || !gFileName )␊ |
81 | stop("InitDriverSupport error");␊ |
82 | ␉␊ |
83 | return 0;␊ |
84 | }␊ |
85 | ␊ |
86 | //==========================================================================␊ |
87 | // LoadDrivers␊ |
88 | ␊ |
89 | long LoadDrivers( char * dirSpec )␊ |
90 | {␉␊ |
91 | char dirSpecExtra[1024];␊ |
92 | ␉␊ |
93 | if ( InitDriverSupport() != 0 )␊ |
94 | return 0;␊ |
95 | ␉␊ |
96 | ␉␊ |
97 | ␊ |
98 | // Load extra drivers if a hook has been installed.␊ |
99 | ␊ |
100 | ␉int step = 0;␊ |
101 | ␉execute_hook("ramDiskLoadDrivers", &step, NULL, NULL, NULL, NULL, NULL);␊ |
102 | #ifdef NBP_SUPPORT␉␊ |
103 | if ( gBootFileType == kNetworkDeviceType )␊ |
104 | {␊ |
105 | if (NetLoadDrivers(dirSpec) != 0) {␊ |
106 | error("Could not load drivers from the network\n");␊ |
107 | return -1;␊ |
108 | }␊ |
109 | }␊ |
110 | else␊ |
111 | #endif␊ |
112 | ␉␉if ( gBootFileType == kBlockDeviceType )␊ |
113 | ␉␉{␊ |
114 | ␉␉␉// First try to load Extra extensions from the ramdisk if isn't aliased as bt(0,0).␊ |
115 | #ifndef OPTION_ROM␊ |
116 | ␉␉␉// First try a specfic OS version folder ie 10.5␊ |
117 | ␉␉␉␊ |
118 | ␉␉␉step = 1;␊ |
119 | ␉␉␉execute_hook("ramDiskLoadDrivers", &step, NULL, NULL, NULL, NULL, NULL);␊ |
120 | ␊ |
121 | #endif␊ |
122 | ␉␉␉␊ |
123 | ␉␉␉// First try a specfic OS version folder ie 10.5␊ |
124 | ␉␉␉sprintf(dirSpecExtra, "/Extra/%s/", &gMacOSVersion);␊ |
125 | ␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0)␊ |
126 | ␉␉␉{␉␊ |
127 | ␉␉␉␉// Next try to load Extra extensions from the selected root partition.␊ |
128 | ␉␉␉␉strcpy(dirSpecExtra, "/Extra/");␊ |
129 | ␉␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0)␊ |
130 | ␉␉␉␉{␊ |
131 | ␉␉␉␉␉// If failed, then try to load Extra extensions from the boot partition␊ |
132 | ␉␉␉␉␉// in case we have a separate booter partition or a bt(0,0) aliased ramdisk.␊ |
133 | ␉␉␉␉␉if (!(gBIOSBootVolume->biosdev == gBootVolume->biosdev && gBIOSBootVolume->part_no == gBootVolume->part_no))␊ |
134 | ␉␉␉␉␉{␊ |
135 | ␉␉␉␉␉␉// First try a specfic OS version folder ie 10.5␊ |
136 | ␉␉␉␉␉␉sprintf(dirSpecExtra, "bt(0,0)/Extra/%s/", &gMacOSVersion);␊ |
137 | ␉␉␉␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0)␊ |
138 | ␉␉␉␉␉␉{␉␊ |
139 | ␉␉␉␉␉␉␉// Next we'll try the base␊ |
140 | ␉␉␉␉␉␉␉strcpy(dirSpecExtra, "bt(0,0)/Extra/");␊ |
141 | ␉␉␉␉␉␉␉FileLoadDrivers(dirSpecExtra, 0);␊ |
142 | ␉␉␉␉␉␉}␊ |
143 | ␉␉␉␉␉}␊ |
144 | #ifndef OPTION_ROM␊ |
145 | ␉␉␉␉␉step = 2;␊ |
146 | ␉␉␉␉␉execute_hook("ramDiskLoadDrivers", &step, NULL, NULL, NULL, NULL, NULL);␊ |
147 | #endif␊ |
148 | ␉␉␉␉}␊ |
149 | ␉␉␉␉␊ |
150 | ␉␉␉}␉␊ |
151 | #ifdef BOOT_HELPER_SUPPORT␊ |
152 | ␉␉␉// TODO: fix this, the order does matter, and it's not correct now.␊ |
153 | ␉␉␉// Also try to load Extensions from boot helper partitions.␊ |
154 | ␉␉␉if (gBootVolume->flags & kBVFlagBooter)␊ |
155 | ␉␉␉{␊ |
156 | ␉␉␉␉strcpy(dirSpecExtra, "/com.apple.boot.P/System/Library/");␊ |
157 | ␉␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0)␊ |
158 | ␉␉␉␉{␊ |
159 | ␉␉␉␉␉strcpy(dirSpecExtra, "/com.apple.boot.R/System/Library/");␊ |
160 | ␉␉␉␉␉if (FileLoadDrivers(dirSpecExtra, 0) != 0)␊ |
161 | ␉␉␉␉␉{␊ |
162 | ␉␉␉␉␉␉strcpy(dirSpecExtra, "/com.apple.boot.S/System/Library/");␊ |
163 | ␉␉␉␉␉␉FileLoadDrivers(dirSpecExtra, 0);␊ |
164 | ␉␉␉␉␉}␊ |
165 | ␉␉␉␉}␊ |
166 | ␉␉␉}␊ |
167 | #endif␊ |
168 | ␉␉␉␊ |
169 | ␉␉␉if (gMKextName[0] != '\0')␊ |
170 | ␉␉␉{␊ |
171 | ␉␉␉␉verbose("LoadDrivers: Loading from [%s]\n", gMKextName);␊ |
172 | ␉␉␉␉if ( LoadDriverMKext(gMKextName) != 0 )␊ |
173 | ␉␉␉␉{␊ |
174 | ␉␉␉␉␉error("Could not load %s\n", gMKextName);␊ |
175 | ␉␉␉␉␉return -1;␊ |
176 | ␉␉␉␉}␊ |
177 | ␉␉␉}␊ |
178 | ␉␉␉else␊ |
179 | ␉␉␉{␊ |
180 | ␉␉␉␉strcpy(gExtensionsSpec, dirSpec);␊ |
181 | ␉␉␉␉strcat(gExtensionsSpec, "System/Library/");␊ |
182 | ␉␉␉␉FileLoadDrivers(gExtensionsSpec, 0);␊ |
183 | ␉␉␉}␊ |
184 | ␉␉}␊ |
185 | ␉␉else␊ |
186 | ␉␉{␊ |
187 | ␉␉␉return 0;␊ |
188 | ␉␉}␊ |
189 | #if UNUSED␊ |
190 | MatchPersonalities();␊ |
191 | #endif␊ |
192 | ␉␊ |
193 | MatchLibraries();␊ |
194 | ␉␊ |
195 | LoadMatchedModules();␊ |
196 | ␉␊ |
197 | return 0;␊ |
198 | }␊ |
199 | ␊ |
200 | //==========================================================================␊ |
201 | // FileLoadMKext␊ |
202 | ␊ |
203 | static long␊ |
204 | FileLoadMKext( const char * dirSpec, const char * extDirSpec )␊ |
205 | {␊ |
206 | ␉long ret, flags, time, time2;␊ |
207 | ␉char altDirSpec[512];␊ |
208 | ␉␊ |
209 | ␉sprintf (altDirSpec, "%s%s", dirSpec, extDirSpec);␊ |
210 | ␉ret = GetFileInfo(altDirSpec, "Extensions.mkext", &flags, &time);␊ |
211 | ␉if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeFlat))␊ |
212 | ␉{␊ |
213 | ␉␉ret = GetFileInfo(dirSpec, "Extensions", &flags, &time2);␊ |
214 | ␉␉if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeDirectory) ||␊ |
215 | ␉␉␉(((gBootMode & kBootModeSafe) == 0) && (time == (time2 + 1))))␊ |
216 | ␉␉{␊ |
217 | ␉␉␉sprintf(gDriverSpec, "%sExtensions.mkext", altDirSpec);␊ |
218 | ␉␉␉verbose("LoadDrivers: Loading from [%s]\n", gDriverSpec);␊ |
219 | ␉␉␉if (LoadDriverMKext(gDriverSpec) == 0) return 0;␊ |
220 | ␉␉}␊ |
221 | ␉}␊ |
222 | ␉return -1;␊ |
223 | }␊ |
224 | ␊ |
225 | //==========================================================================␊ |
226 | // FileLoadDrivers␊ |
227 | ␊ |
228 | long␊ |
229 | FileLoadDrivers( char * dirSpec, long plugin )␊ |
230 | {␊ |
231 | long ret, length, flags, time, bundleType;␊ |
232 | long long␉ index;␊ |
233 | long result = -1;␊ |
234 | const char * name;␊ |
235 | ␉␊ |
236 | if ( !plugin )␊ |
237 | {␊ |
238 | // First try 10.6's path for loading Extensions.mkext.␊ |
239 | if (FileLoadMKext(dirSpec, "Caches/com.apple.kext.caches/Startup/") == 0)␊ |
240 | ␉␉␉return 0;␊ |
241 | ␉␉␊ |
242 | // Next try the legacy path.␊ |
243 | else if (FileLoadMKext(dirSpec, "") == 0)␊ |
244 | ␉␉␉return 0;␊ |
245 | ␉␉␊ |
246 | strcat(dirSpec, "Extensions");␊ |
247 | }␊ |
248 | ␉␊ |
249 | index = 0;␊ |
250 | while (1) {␊ |
251 | ret = GetDirEntry(dirSpec, &index, &name, &flags, &time);␊ |
252 | if (ret == -1) break;␊ |
253 | ␉␉␊ |
254 | // Make sure this is a directory.␊ |
255 | if ((flags & kFileTypeMask) != kFileTypeDirectory) continue;␊ |
256 | ␊ |
257 | // Make sure this is a kext.␊ |
258 | length = strlen(name);␊ |
259 | if (strcmp(name + length - 5, ".kext")) continue;␊ |
260 | ␉␉␊ |
261 | // Save the file name.␊ |
262 | strcpy(gFileName, name);␊ |
263 | ␉␉␊ |
264 | // Determine the bundle type.␊ |
265 | sprintf(gTempSpec, "%s/%s", dirSpec, gFileName);␊ |
266 | ret = GetFileInfo(gTempSpec, "Contents", &flags, &time);␊ |
267 | if (ret == 0) bundleType = kCFBundleType2;␊ |
268 | else bundleType = kCFBundleType3;␊ |
269 | ␉␉␊ |
270 | if (!plugin)␊ |
271 | sprintf(gDriverSpec, "%s/%s/%sPlugIns", dirSpec, gFileName,␊ |
272 | (bundleType == kCFBundleType2) ? "Contents/" : "");␊ |
273 | ␉␉␊ |
274 | ret = LoadDriverPList(dirSpec, gFileName, bundleType);␊ |
275 | ␉␉␊ |
276 | if (result != 0)␊ |
277 | ␉␉␉result = ret;␊ |
278 | ␉␉␊ |
279 | if (!plugin) ␊ |
280 | ␉␉␉FileLoadDrivers(gDriverSpec, 1);␊ |
281 | }␊ |
282 | ␉␊ |
283 | return result;␊ |
284 | }␊ |
285 | ␊ |
286 | //==========================================================================␊ |
287 | // ␊ |
288 | #ifdef NBP_SUPPORT␊ |
289 | long␊ |
290 | NetLoadDrivers( char * dirSpec )␊ |
291 | {␊ |
292 | long tries;␊ |
293 | ␉␊ |
294 | #if NODEF␊ |
295 | long cnt;␊ |
296 | ␉␊ |
297 | // Get the name of the kernel␊ |
298 | cnt = strlen(gBootFile);␊ |
299 | while (cnt--) {␊ |
300 | if ((gBootFile[cnt] == '\\') || (gBootFile[cnt] == ',')) {␊ |
301 | ␉␉␉cnt++;␊ |
302 | ␉␉␉break;␊ |
303 | }␊ |
304 | }␊ |
305 | #endif␊ |
306 | ␉␊ |
307 | // INTEL modification␊ |
308 | sprintf(gDriverSpec, "%s%s.mkext", dirSpec, bootInfo->bootFile);␊ |
309 | ␊ |
310 | verbose("NetLoadDrivers: Loading from [%s]\n", gDriverSpec);␊ |
311 | ␊ |
312 | tries = 3;␊ |
313 | while (tries--)␊ |
314 | {␊ |
315 | if (LoadDriverMKext(gDriverSpec) == 0) break;␊ |
316 | }␊ |
317 | if (tries == -1) return -1;␊ |
318 | ␉␊ |
319 | return 0;␊ |
320 | }␊ |
321 | #endif␊ |
322 | //==========================================================================␊ |
323 | // loadDriverMKext␊ |
324 | ␊ |
325 | long␊ |
326 | LoadDriverMKext( char * fileSpec )␊ |
327 | {␊ |
328 | unsigned long driversAddr, driversLength;␊ |
329 | long length;␊ |
330 | char segName[32];␊ |
331 | DriversPackage * package;␊ |
332 | ␉␊ |
333 | #define GetPackageElement(e) OSSwapBigToHostInt32(package->e)␊ |
334 | ␉␊ |
335 | // Load the MKext.␊ |
336 | length = LoadThinFatFile(fileSpec, (void **)&package);␊ |
337 | if (!length || (unsigned)length < sizeof (DriversPackage)) return -1;␊ |
338 | ␉␊ |
339 | ␉// call hook to notify modules that the mkext has been loaded␊ |
340 | ␉execute_hook("LoadDriverMKext", (void*)fileSpec, (void*)package, (void*) length, NULL, NULL, NULL);␊ |
341 | ␉␊ |
342 | ␉␊ |
343 | // Verify the MKext.␊ |
344 | if (( GetPackageElement(signature1) != kDriverPackageSignature1) ||␊ |
345 | ( GetPackageElement(signature2) != kDriverPackageSignature2) ||␊ |
346 | ( GetPackageElement(length) > kLoadSize ) ||␊ |
347 | ( GetPackageElement(alder32) !=␊ |
348 | ␉␉ local_adler32((unsigned char *)&package->version, GetPackageElement(length) - 0x10) ) )␊ |
349 | {␊ |
350 | return -1;␊ |
351 | }␊ |
352 | ␉␊ |
353 | ␉␊ |
354 | // Make space for the MKext.␊ |
355 | driversLength = GetPackageElement(length);␊ |
356 | driversAddr = AllocateKernelMemory(driversLength);␊ |
357 | ␉␊ |
358 | // Copy the MKext.␊ |
359 | memcpy((void *)driversAddr, (void *)package, driversLength);␊ |
360 | ␉␊ |
361 | // Add the MKext to the memory map.␊ |
362 | sprintf(segName, "DriversPackage-%lx", driversAddr); ␊ |
363 | ␊ |
364 | #if UNUSED␊ |
365 | AllocateMemoryRange(segName, driversAddr, driversLength,␊ |
366 | kBootDriverTypeMKEXT);␊ |
367 | #else␊ |
368 | AllocateMemoryRange(segName, driversAddr, driversLength);␊ |
369 | #endif␊ |
370 | ␉␊ |
371 | return 0;␊ |
372 | }␊ |
373 | ␊ |
374 | //==========================================================================␊ |
375 | // LoadDriverPList␊ |
376 | ␊ |
377 | long␊ |
378 | LoadDriverPList( char * dirSpec, char * name, long bundleType )␊ |
379 | {␊ |
380 | long length, executablePathLength, bundlePathLength;␊ |
381 | ModulePtr module;␊ |
382 | TagPtr personalities;␊ |
383 | char * buffer = 0;␊ |
384 | char * tmpExecutablePath = 0;␊ |
385 | char * tmpBundlePath = 0;␊ |
386 | long ret = -1;␊ |
387 | ␉␊ |
388 | do {␊ |
389 | // Save the driver path.␊ |
390 | ␊ |
391 | sprintf(gFileSpec, "%s/%s/%s", dirSpec, name,␊ |
392 | (bundleType == kCFBundleType2) ? "Contents/MacOS/" : "");␊ |
393 | executablePathLength = strlen(gFileSpec) + 1;␊ |
394 | ␉␉␊ |
395 | tmpExecutablePath = malloc(executablePathLength);␊ |
396 | if (tmpExecutablePath == 0) break;␊ |
397 | ␉␉␊ |
398 | strcpy(tmpExecutablePath, gFileSpec);␊ |
399 | ␉␉␊ |
400 | sprintf(gFileSpec, "%s/%s", dirSpec, name);␊ |
401 | bundlePathLength = strlen(gFileSpec) + 1;␊ |
402 | ␉␉␊ |
403 | tmpBundlePath = malloc(bundlePathLength);␊ |
404 | if (tmpBundlePath == 0) break;␊ |
405 | ␉␉␊ |
406 | strcpy(tmpBundlePath, gFileSpec);␊ |
407 | ␉␉␊ |
408 | // Construct the file spec to the plist, then load it.␊ |
409 | ␉␉␊ |
410 | sprintf(gFileSpec, "%s/%s/%sInfo.plist", dirSpec, name,␊ |
411 | (bundleType == kCFBundleType2) ? "Contents/" : "");␊ |
412 | ␉␉␊ |
413 | length = LoadFile(gFileSpec);␊ |
414 | if (length == -1) break;␊ |
415 | ␉␉␊ |
416 | length = length + 1;␊ |
417 | buffer = malloc(length);␊ |
418 | if (buffer == 0) break;␊ |
419 | ␉␉␊ |
420 | strlcpy(buffer, (char *)kLoadAddr, length);␊ |
421 | ␉␉␊ |
422 | // Parse the plist.␊ |
423 | ␉␉␊ |
424 | ret = ParseXML(buffer, &module, &personalities);␊ |
425 | if (ret != 0) { break; }␊ |
426 | ␉␉␊ |
427 | // Allocate memory for the driver path and the plist.␊ |
428 | ␉␉␊ |
429 | module->executablePath = tmpExecutablePath;␊ |
430 | module->bundlePath = tmpBundlePath;␊ |
431 | module->bundlePathLength = bundlePathLength;␊ |
432 | module->plistAddr = malloc(length);␊ |
433 | ␉␉␊ |
434 | if ((module->executablePath == 0) || (module->bundlePath == 0) || (module->plistAddr == 0))␊ |
435 | break;␊ |
436 | ␉␉␊ |
437 | // Save the driver path in the module.␊ |
438 | //strcpy(module->driverPath, tmpDriverPath);␊ |
439 | tmpExecutablePath = 0;␊ |
440 | tmpBundlePath = 0;␊ |
441 | ␉␉␊ |
442 | // Add the plist to the module.␊ |
443 | ␉␉␊ |
444 | strlcpy(module->plistAddr, (char *)kLoadAddr, length);␊ |
445 | module->plistLength = length;␊ |
446 | ␉␉␊ |
447 | // Add the module to the end of the module list.␊ |
448 | ␊ |
449 | if (gModuleHead == 0)␊ |
450 | gModuleHead = module;␊ |
451 | else␊ |
452 | gModuleTail->nextModule = module;␊ |
453 | gModuleTail = module;␊ |
454 | ␉␉␊ |
455 | // Add the persionalities to the personality list.␊ |
456 | ␉␉␊ |
457 | if (personalities) personalities = personalities->tag;␊ |
458 | while (personalities != 0)␊ |
459 | {␊ |
460 | if (gPersonalityHead == 0)␊ |
461 | gPersonalityHead = personalities->tag;␊ |
462 | else␊ |
463 | gPersonalityTail->tagNext = personalities->tag;␊ |
464 | ␊ |
465 | gPersonalityTail = personalities->tag;␊ |
466 | personalities = personalities->tagNext;␊ |
467 | }␊ |
468 | ␊ |
469 | ret = 0;␊ |
470 | }␊ |
471 | while (0);␊ |
472 | ␊ |
473 | if ( buffer ) free( buffer );␊ |
474 | if ( tmpExecutablePath ) free( tmpExecutablePath );␊ |
475 | if ( tmpBundlePath ) free( tmpBundlePath );␊ |
476 | ␉␊ |
477 | return ret;␊ |
478 | }␊ |
479 | ␊ |
480 | ␊ |
481 | //==========================================================================␊ |
482 | // LoadMatchedModules␊ |
483 | ␊ |
484 | long LoadMatchedModules( void )␊ |
485 | {␊ |
486 | TagPtr prop;␊ |
487 | ModulePtr module;␊ |
488 | char *fileName, segName[32];␊ |
489 | DriverInfoPtr driver;␊ |
490 | long length, driverAddr, driverLength;␊ |
491 | void *executableAddr = 0;␊ |
492 | ␉␊ |
493 | ␉␊ |
494 | module = gModuleHead;␊ |
495 | ␉␊ |
496 | while (module != 0)␊ |
497 | {␊ |
498 | if (module->willLoad)␊ |
499 | {␊ |
500 | prop = XMLGetProperty(module->dict, kPropCFBundleExecutable);␊ |
501 | ␉␉␉␊ |
502 | if (prop != 0)␊ |
503 | {␊ |
504 | fileName = prop->string;␊ |
505 | sprintf(gFileSpec, "%s%s", module->executablePath, fileName);␊ |
506 | length = LoadThinFatFile(gFileSpec, &executableAddr);␊ |
507 | ␉␉␉␉if (length == 0)␊ |
508 | ␉␉␉␉{␊ |
509 | ␉␉␉␉␉length = LoadFile(gFileSpec);␊ |
510 | ␉␉␉␉␉executableAddr = (void *)kLoadAddr;␊ |
511 | ␉␉␉␉}␊ |
512 | //printf("%s length = %d addr = 0x%x\n", gFileSpec, length, driverModuleAddr); getc();␊ |
513 | }␊ |
514 | else␊ |
515 | length = 0;␊ |
516 | ␉␉␉␊ |
517 | if (length != -1)␊ |
518 | {␊ |
519 | ␉␉␉␉//driverModuleAddr = (void *)kLoadAddr;␊ |
520 | //if (length != 0)␊ |
521 | //{␊ |
522 | ␉␉␉␉// ThinFatFile(&driverModuleAddr, &length);␊ |
523 | ␉␉␉␉//}␊ |
524 | ␉␉␉␉␊ |
525 | // Make make in the image area.␊ |
526 | ␉␉␉␉␊ |
527 | ␉␉␉␉execute_hook("LoadMatchedModules", module, &length, executableAddr, NULL, NULL, NULL);␊ |
528 | ␉␉␉␉␊ |
529 | driverLength = sizeof(DriverInfo) + module->plistLength + length + module->bundlePathLength;␊ |
530 | driverAddr = AllocateKernelMemory(driverLength);␊ |
531 | ␉␉␉␉␊ |
532 | // Set up the DriverInfo.␊ |
533 | driver = (DriverInfoPtr)driverAddr;␊ |
534 | driver->plistAddr = (char *)(driverAddr + sizeof(DriverInfo));␊ |
535 | driver->plistLength = module->plistLength;␊ |
536 | if (length != 0)␊ |
537 | {␊ |
538 | driver->executableAddr = (void *)(driverAddr + sizeof(DriverInfo) +␊ |
539 | ␉␉␉␉␉␉␉␉␉␉␉␉␉ module->plistLength);␊ |
540 | driver->executableLength = length;␊ |
541 | }␊ |
542 | else␊ |
543 | {␊ |
544 | driver->executableAddr = 0;␊ |
545 | driver->executableLength = 0;␊ |
546 | }␊ |
547 | driver->bundlePathAddr = (void *)(driverAddr + sizeof(DriverInfo) +␊ |
548 | ␉␉␉␉␉␉␉␉␉␉␉␉ module->plistLength + driver->executableLength);␊ |
549 | driver->bundlePathLength = module->bundlePathLength;␊ |
550 | ␉␉␉␉␊ |
551 | // Save the plist, module and bundle.␊ |
552 | strcpy(driver->plistAddr, module->plistAddr);␊ |
553 | if (length != 0)␊ |
554 | {␊ |
555 | memcpy(driver->executableAddr, executableAddr, length);␊ |
556 | }␊ |
557 | strcpy(driver->bundlePathAddr, module->bundlePath);␊ |
558 | ␉␉␉␉␊ |
559 | // Add an entry to the memory map.␊ |
560 | sprintf(segName, "Driver-%lx", (unsigned long)driver); ␊ |
561 | #if UNUSED␊ |
562 | AllocateMemoryRange(segName, driverAddr, driverLength,␊ |
563 | kBootDriverTypeKEXT);␊ |
564 | #else␊ |
565 | AllocateMemoryRange(segName, driverAddr, driverLength);␊ |
566 | #endif␊ |
567 | ␊ |
568 | }␊ |
569 | }␊ |
570 | module = module->nextModule;␊ |
571 | }␊ |
572 | ␉␊ |
573 | return 0;␊ |
574 | }␊ |
575 | ␊ |
576 | #if UNUSED␊ |
577 | //==========================================================================␊ |
578 | // MatchPersonalities␊ |
579 | ␊ |
580 | long MatchPersonalities( void )␊ |
581 | {␊ |
582 | /* IONameMatch support not implemented */␊ |
583 | return 0;␊ |
584 | }␊ |
585 | #endif␊ |
586 | ␊ |
587 | //==========================================================================␊ |
588 | // MatchLibraries␊ |
589 | ␊ |
590 | long MatchLibraries( void )␊ |
591 | {␊ |
592 | TagPtr prop, prop2;␊ |
593 | ModulePtr module, module2;␊ |
594 | long done;␊ |
595 | ␉␊ |
596 | do {␊ |
597 | done = 1;␊ |
598 | module = gModuleHead;␊ |
599 | ␊ |
600 | while (module != 0)␊ |
601 | {␊ |
602 | if (module->willLoad == 1)␊ |
603 | {␊ |
604 | prop = XMLGetProperty(module->dict, kPropOSBundleLibraries);␊ |
605 | if (prop != 0)␊ |
606 | {␊ |
607 | prop = prop->tag;␊ |
608 | while (prop != 0)␊ |
609 | {␊ |
610 | module2 = gModuleHead;␊ |
611 | while (module2 != 0)␊ |
612 | {␊ |
613 | prop2 = XMLGetProperty(module2->dict, kPropCFBundleIdentifier);␊ |
614 | if ((prop2 != 0) && (!strcmp(prop->string, prop2->string)))␊ |
615 | {␊ |
616 | if (module2->willLoad == 0) module2->willLoad = 1;␊ |
617 | break;␊ |
618 | }␊ |
619 | module2 = module2->nextModule;␊ |
620 | }␊ |
621 | prop = prop->tagNext;␊ |
622 | }␊ |
623 | }␊ |
624 | module->willLoad = 2;␊ |
625 | done = 0;␊ |
626 | }␊ |
627 | module = module->nextModule;␊ |
628 | }␊ |
629 | }␊ |
630 | while (!done);␊ |
631 | ␉␊ |
632 | return 0;␊ |
633 | }␊ |
634 | ␊ |
635 | ␊ |
636 | //==========================================================================␊ |
637 | // FindModule␊ |
638 | ␊ |
639 | #if UNUSED␊ |
640 | static ModulePtr␊ |
641 | FindModule( char * name )␊ |
642 | {␊ |
643 | ModulePtr module;␊ |
644 | TagPtr prop;␊ |
645 | ␊ |
646 | module = gModuleHead;␊ |
647 | ␊ |
648 | while (module != 0)␊ |
649 | {␊ |
650 | prop = GetProperty(module->dict, kPropCFBundleIdentifier);␊ |
651 | if ((prop != 0) && !strcmp(name, prop->string)) break;␊ |
652 | module = module->nextModule;␊ |
653 | }␊ |
654 | ␊ |
655 | return module;␊ |
656 | }␊ |
657 | #endif␊ |
658 | ␊ |
659 | //==========================================================================␊ |
660 | // ParseXML␊ |
661 | ␊ |
662 | static long␊ |
663 | ParseXML( char * buffer, ModulePtr * module, TagPtr * personalities )␊ |
664 | {␊ |
665 | ␉long length, pos;␊ |
666 | ␉TagPtr moduleDict, required;␊ |
667 | ␉ModulePtr tmpModule;␊ |
668 | ␉␊ |
669 | pos = 0;␊ |
670 | ␉␊ |
671 | while (1)␊ |
672 | {␊ |
673 | length = XMLParseNextTag(buffer + pos, &moduleDict);␊ |
674 | if (length == -1) break;␊ |
675 | ␉␉␊ |
676 | pos += length;␊ |
677 | ␉␉␊ |
678 | if (moduleDict == 0) continue;␊ |
679 | if (moduleDict->type == kTagTypeDict) break;␊ |
680 | ␉␉␊ |
681 | XMLFreeTag(moduleDict);␊ |
682 | }␊ |
683 | ␉␊ |
684 | if (length == -1) return -1;␊ |
685 | ␉␊ |
686 | required = XMLGetProperty(moduleDict, kPropOSBundleRequired);␊ |
687 | if ( (required == 0) ||␊ |
688 | ␉␉(required->type != kTagTypeString) ||␊ |
689 | ␉␉!strcmp(required->string, "Safe Boot"))␊ |
690 | {␊ |
691 | XMLFreeTag(moduleDict);␊ |
692 | return -2;␊ |
693 | }␊ |
694 | ␉␊ |
695 | tmpModule = malloc(sizeof(Module));␊ |
696 | if (tmpModule == 0)␊ |
697 | {␊ |
698 | XMLFreeTag(moduleDict);␊ |
699 | return -1;␊ |
700 | }␊ |
701 | tmpModule->dict = moduleDict;␊ |
702 | ␉␊ |
703 | // For now, load any module that has OSBundleRequired != "Safe Boot".␊ |
704 | ␉␊ |
705 | tmpModule->willLoad = 1;␊ |
706 | ␉␊ |
707 | *module = tmpModule;␊ |
708 | ␉␊ |
709 | // Get the personalities.␊ |
710 | ␉␊ |
711 | *personalities = XMLGetProperty(moduleDict, kPropIOKitPersonalities);␊ |
712 | ␉␊ |
713 | return 0;␊ |
714 | }␊ |
715 | ␊ |
716 | ␊ |
717 | long ␊ |
718 | DecodeKernel(void *binary, entry_t *rentry, char **raddr, int *rsize)␊ |
719 | {␊ |
720 | long ret;␊ |
721 | compressed_kernel_header * kernel_header = (compressed_kernel_header *) binary;␊ |
722 | u_int32_t uncompressed_size, size;␊ |
723 | void *buffer;␊ |
724 | ␉unsigned long len;␊ |
725 | ␉␊ |
726 | #if 0␊ |
727 | printf("kernel header:\n");␊ |
728 | printf("signature: 0x%x\n", kernel_header->signature);␊ |
729 | printf("compress_type: 0x%x\n", kernel_header->compress_type);␊ |
730 | printf("adler32: 0x%x\n", kernel_header->adler32);␊ |
731 | printf("uncompressed_size: 0x%x\n", kernel_header->uncompressed_size);␊ |
732 | printf("compressed_size: 0x%x\n", kernel_header->compressed_size);␊ |
733 | getc();␊ |
734 | #endif␊ |
735 | ␉␊ |
736 | ␉␊ |
737 | if (kernel_header->signature == OSSwapBigToHostConstInt32('comp')) {␊ |
738 | if (kernel_header->compress_type != OSSwapBigToHostConstInt32('lzss')) {␊ |
739 | error("kernel compression is bad\n");␊ |
740 | return -1;␊ |
741 | }␊ |
742 | ␉␉␊ |
743 | uncompressed_size = OSSwapBigToHostInt32(kernel_header->uncompressed_size);␊ |
744 | binary = buffer = malloc(uncompressed_size);␊ |
745 | ␉␉␊ |
746 | size = decompress_lzss((u_int8_t *) binary, &kernel_header->data[0],␊ |
747 | OSSwapBigToHostInt32(kernel_header->compressed_size));␊ |
748 | if (uncompressed_size != size) {␊ |
749 | error("size mismatch from lzss: %x\n", size);␊ |
750 | return -1;␊ |
751 | }␊ |
752 | if (OSSwapBigToHostInt32(kernel_header->adler32) !=␊ |
753 | local_adler32(binary, uncompressed_size)) {␊ |
754 | printf("adler mismatch\n");␊ |
755 | return -1;␊ |
756 | }␊ |
757 | ␉␉if (((gBootMode & kBootModeSafe) == 0) && (gBootKernelCacheFile[0] != '\0') && gMacOSVersion[3] == '7') ␊ |
758 | ␉␉␉bootInfo->adler32 = kernel_header->adler32;␊ |
759 | }␊ |
760 | ␊ |
761 | ␉ret = ThinFatFile(&binary, &len);␊ |
762 | ␉if (ret == 0 && len == 0 && archCpuType==CPU_TYPE_X86_64)␊ |
763 | ␉{␊ |
764 | ␉␉archCpuType=CPU_TYPE_I386;␊ |
765 | ␉␉ret = ThinFatFile(&binary, &len);␊ |
766 | ␉}␊ |
767 | ␉␊ |
768 | ␉ret = DecodeMachO(binary, rentry, raddr, rsize);␊ |
769 | ␉␊ |
770 | ␉if (ret<0 && archCpuType==CPU_TYPE_X86_64)␊ |
771 | ␉{␊ |
772 | ␉␉archCpuType=CPU_TYPE_I386;␊ |
773 | ␉␉ret = DecodeMachO(binary, rentry, raddr, rsize);␊ |
774 | ␉}␊ |
775 | ␉␊ |
776 | ␉return ret;␊ |
777 | } |