| static long␊ |
| FileLoadMKext( const char * dirSpec, const char * extDirSpec )␊ |
| {␊ |
| long ret, flags, time, time2;␊ |
| char altDirSpec[512];␊ |
| ␉long␉ret, flags, time, time2;␊ |
| ␉char␉altDirSpec[512];␊ |
| ␉␊ |
| sprintf (altDirSpec, "%s%s", dirSpec, extDirSpec);␊ |
| ret = GetFileInfo(altDirSpec, "Extensions.mkext", &flags, &time);␊ |
| if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeFlat))␊ |
| {␊ |
| ret = GetFileInfo(dirSpec, "Extensions", &flags, &time2);␊ |
| if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeDirectory) ||␊ |
| (((gBootMode & kBootModeSafe) == 0) && (time == (time2 + 1))))␊ |
| {␊ |
| sprintf(gDriverSpec, "%sExtensions.mkext", altDirSpec);␊ |
| verbose("LoadDrivers: Loading from [%s]\n", gDriverSpec);␊ |
| if (LoadDriverMKext(gDriverSpec) == 0) return 0;␊ |
| }␊ |
| }␊ |
| return -1;␊ |
| ␉sprintf (altDirSpec, "%s%s", dirSpec, extDirSpec);␊ |
| ␉ret = GetFileInfo(altDirSpec, "Extensions.mkext", &flags, &time);␊ |
| ␉␊ |
| ␉if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeFlat))␊ |
| ␉{␊ |
| ␉␉ret = GetFileInfo(dirSpec, "Extensions", &flags, &time2);␊ |
| ␉␉␊ |
| ␉␉if ((ret != 0)␊ |
| ␉␉␉|| ((flags & kFileTypeMask) != kFileTypeDirectory)␊ |
| ␉␉␉|| (((gBootMode & kBootModeSafe) == 0) && (time == (time2 + 1))))␊ |
| ␉␉{␊ |
| ␉␉␉sprintf(gDriverSpec, "%sExtensions.mkext", altDirSpec);␊ |
| ␉␉␉␊ |
| ␉␉␉if (LoadDriverMKext(gDriverSpec) == 0)␊ |
| ␉␉␉␉return 0;␊ |
| ␉␉}␊ |
| ␉}␊ |
| ␉return -1;␊ |
| }␊ |
| ␊ |
| //==========================================================================␊ |
|
| {␊ |
| // First try 10.6's path for loading Extensions.mkext.␊ |
| if (FileLoadMKext(dirSpec, "Caches/com.apple.kext.caches/Startup/") == 0)␊ |
| return 0;␊ |
| return 0;␊ |
| ␊ |
| // Next try the legacy path.␊ |
| else if (FileLoadMKext(dirSpec, "") == 0)␊ |
|
| static long␊ |
| LoadMatchedModules( void )␊ |
| {␊ |
| TagPtr prop;␊ |
| ModulePtr module;␊ |
| char *fileName, segName[32];␊ |
| DriverInfoPtr driver;␊ |
| long length, driverAddr, driverLength;␊ |
| void *executableAddr = 0;␊ |
| ␉TagPtr␉␉ prop;␊ |
| ␉ModulePtr␉ module;␊ |
| ␉char␉␉ *fileName, segName[32];␊ |
| ␉DriverInfoPtr driver;␊ |
| ␉long␉␉ length, driverAddr, driverLength;␊ |
| ␉void␉␉ *executableAddr = 0;␊ |
| ␊ |
| ␊ |
| module = gModuleHead;␊ |
| ␉module = gModuleHead;␊ |
| ␊ |
| while (module != 0)␊ |
| {␊ |
| if (module->willLoad)␊ |
| {␊ |
| prop = XMLGetProperty(module->dict, kPropCFBundleExecutable);␊ |
| ␉while (module != 0)␊ |
| ␉{␊ |
| ␉␉if (module->willLoad)␊ |
| ␉␉{␊ |
| ␉␉␉prop = XMLGetProperty(module->dict, kPropCFBundleExecutable);␊ |
| ␊ |
| if (prop != 0)␊ |
| {␊ |
| fileName = prop->string;␊ |
| sprintf(gFileSpec, "%s%s", module->executablePath, fileName);␊ |
| length = LoadThinFatFile(gFileSpec, &executableAddr);␊ |
| ␉␉␉if (prop != 0)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉fileName = prop->string;␊ |
| ␉␉␉␉sprintf(gFileSpec, "%s%s", module->executablePath, fileName);␊ |
| ␉␉␉␉length = LoadThinFatFile(gFileSpec, &executableAddr);␊ |
| ␉␉␉␉if (length == 0)␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉length = LoadFile(gFileSpec);␊ |
| ␉␉␉␉␉executableAddr = (void *)kLoadAddr;␊ |
| ␉␉␉␉}␊ |
| //printf("%s length = %d addr = 0x%x\n", gFileSpec, length, driverModuleAddr); getc();␊ |
| }␊ |
| else␊ |
| length = 0;␊ |
| //␉␉␉␉printf("%s length = %d addr = 0x%x\n", gFileSpec, length, driverModuleAddr); getchar();␊ |
| ␉␉␉}␊ |
| ␉␉␉else␊ |
| ␉␉␉␉length = 0;␊ |
| ␊ |
| if (length != -1)␊ |
| {␊ |
| ␉␉//driverModuleAddr = (void *)kLoadAddr;␊ |
| //if (length != 0)␊ |
| //{␊ |
| ␉␉// ThinFatFile(&driverModuleAddr, &length);␊ |
| ␉␉//}␊ |
| ␉␉␉if (length != -1)␊ |
| ␉␉␉{␊ |
| //␉␉␉␉driverModuleAddr = (void *)kLoadAddr;␊ |
| //␉␉␉␉if (length != 0)␊ |
| //␉␉␉␉{␊ |
| //␉␉␉␉␉ThinFatFile(&driverModuleAddr, &length);␊ |
| //␉␉␉␉}␊ |
| ␊ |
| // Make make in the image area.␊ |
| driverLength = sizeof(DriverInfo) + module->plistLength + length + module->bundlePathLength;␊ |
| driverAddr = AllocateKernelMemory(driverLength);␊ |
| ␉␉␉␉// Make make in the image area.␊ |
| ␉␉␉␉driverLength = sizeof(DriverInfo) + module->plistLength + length + module->bundlePathLength;␊ |
| ␉␉␉␉driverAddr = AllocateKernelMemory(driverLength);␊ |
| ␊ |
| // Set up the DriverInfo.␊ |
| driver = (DriverInfoPtr)driverAddr;␊ |
| driver->plistAddr = (char *)(driverAddr + sizeof(DriverInfo));␊ |
| driver->plistLength = module->plistLength;␊ |
| if (length != 0)␊ |
| {␊ |
| driver->executableAddr = (void *)(driverAddr + sizeof(DriverInfo) +␊ |
| ␉␉␉␉␉ module->plistLength);␊ |
| driver->executableLength = length;␊ |
| }␊ |
| else␊ |
| {␊ |
| driver->executableAddr = 0;␊ |
| driver->executableLength = 0;␊ |
| }␊ |
| driver->bundlePathAddr = (void *)(driverAddr + sizeof(DriverInfo) +␊ |
| ␉␉␉␉ module->plistLength + driver->executableLength);␊ |
| driver->bundlePathLength = module->bundlePathLength;␊ |
| ␉␉␉␉// Set up the DriverInfo.␊ |
| ␉␉␉␉driver = (DriverInfoPtr)driverAddr;␊ |
| ␉␉␉␉driver->plistAddr = (char *)(driverAddr + sizeof(DriverInfo));␊ |
| ␉␉␉␉driver->plistLength = module->plistLength;␊ |
| ␉␉␉␉if (length != 0)␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉driver->executableAddr = (void *)(driverAddr + sizeof(DriverInfo) +␊ |
| ␉␉␉␉␉␉␉␉␉␉ module->plistLength);␊ |
| ␉␉␉␉␉driver->executableLength = length;␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉else␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉driver->executableAddr␉ = 0;␊ |
| ␉␉␉␉␉driver->executableLength = 0;␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉driver->bundlePathAddr = (void *)(driverAddr + sizeof(DriverInfo) +␊ |
| ␉␉␉␉␉␉␉␉␉ module->plistLength + driver->executableLength);␊ |
| ␉␉␉␉driver->bundlePathLength = module->bundlePathLength;␊ |
| ␊ |
| // Save the plist, module and bundle.␊ |
| strcpy(driver->plistAddr, module->plistAddr);␊ |
| if (length != 0)␊ |
| {␊ |
| memcpy(driver->executableAddr, executableAddr, length);␊ |
| }␊ |
| strcpy(driver->bundlePathAddr, module->bundlePath);␊ |
| ␉␉␉␉// Save the plist, module and bundle.␊ |
| ␉␉␉␉strcpy(driver->plistAddr, module->plistAddr);␊ |
| ␉␉␉␉if (length != 0)␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉memcpy(driver->executableAddr, executableAddr, length);␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉strcpy(driver->bundlePathAddr, module->bundlePath);␊ |
| ␊ |
| // Add an entry to the memory map.␊ |
| sprintf(segName, "Driver-%lx", (unsigned long)driver);␊ |
| AllocateMemoryRange(segName, driverAddr, driverLength,␊ |
| kBootDriverTypeKEXT);␊ |
| }␊ |
| }␊ |
| module = module->nextModule;␊ |
| }␊ |
| ␉␉␉␉// Add an entry to the memory map.␊ |
| ␉␉␉␉sprintf(segName, "Driver-%lx", (unsigned long)driver);␊ |
| ␉␉␉␉AllocateMemoryRange(segName, driverAddr, driverLength,␊ |
| ␉␉␉␉␉␉␉␉␉kBootDriverTypeKEXT);␊ |
| ␉␉␉}␊ |
| ␉␉}␊ |
| ␉␉module = module->nextModule;␊ |
| ␉}␊ |
| ␊ |
| return 0;␊ |
| ␉return 0;␊ |
| }␊ |
| ␊ |
| //==========================================================================␊ |
|
| long ␊ |
| DecodeKernel(void *binary, entry_t *rentry, char **raddr, int *rsize)␊ |
| {␊ |
| long ret;␊ |
| compressed_kernel_header * kernel_header = (compressed_kernel_header *) binary;␊ |
| u_int32_t uncompressed_size, size;␊ |
| void *buffer;␊ |
| ␉long ret;␊ |
| ␉compressed_kernel_header * kernel_header = (compressed_kernel_header *) binary;␊ |
| ␉u_int32_t uncompressed_size, size;␊ |
| ␉void *buffer;␊ |
| ␉unsigned long len;␊ |
| ␊ |
| ␉␊ |
| #if 0␊ |
| printf("kernel header:\n");␊ |
| printf("signature: 0x%x\n", kernel_header->signature);␊ |
| printf("compress_type: 0x%x\n", kernel_header->compress_type);␊ |
| printf("adler32: 0x%x\n", kernel_header->adler32);␊ |
| printf("uncompressed_size: 0x%x\n", kernel_header->uncompressed_size);␊ |
| printf("compressed_size: 0x%x\n", kernel_header->compressed_size);␊ |
| getc();␊ |
| ␉printf("kernel header:\n");␊ |
| ␉printf("signature: 0x%x\n", kernel_header->signature);␊ |
| ␉printf("compress_type: 0x%x\n", kernel_header->compress_type);␊ |
| ␉printf("adler32: 0x%x\n", kernel_header->adler32);␊ |
| ␉printf("uncompressed_size: 0x%x\n", kernel_header->uncompressed_size);␊ |
| ␉printf("compressed_size: 0x%x\n", kernel_header->compressed_size);␊ |
| ␉getchar();␊ |
| #endif␊ |
| ␊ |
| if (kernel_header->signature == OSSwapBigToHostConstInt32('comp')) {␊ |
| if (kernel_header->compress_type != OSSwapBigToHostConstInt32('lzss')) {␊ |
| error("kernel compression is bad\n");␊ |
| return -1;␊ |
| }␊ |
| ␉␊ |
| ␉if (kernel_header->signature == OSSwapBigToHostConstInt32('comp'))␊ |
| ␉{␊ |
| ␉␉if (kernel_header->compress_type != OSSwapBigToHostConstInt32('lzss'))␊ |
| ␉␉{␊ |
| ␉␉␉error("kernel compression is bad\n");␊ |
| ␉␉␉return -1;␊ |
| ␉␉}␊ |
| #if NOTDEF␊ |
| if (kernel_header->platform_name[0] && strcmp(gPlatformName, kernel_header->platform_name))␊ |
| return -1;␊ |
| if (kernel_header->root_path[0] && strcmp(gBootFile, kernel_header->root_path))␊ |
| return -1;␊ |
| ␉␉if (kernel_header->platform_name[0] && strcmp(gPlatformName, kernel_header->platform_name))␊ |
| ␉␉␉return -1;␊ |
| ␉␉if (kernel_header->root_path[0] && strcmp(gBootFile, kernel_header->root_path))␊ |
| ␉␉␉return -1;␊ |
| #endif␊ |
| ␊ |
| uncompressed_size = OSSwapBigToHostInt32(kernel_header->uncompressed_size);␊ |
| binary = buffer = malloc(uncompressed_size);␊ |
| ␊ |
| size = decompress_lzss((u_int8_t *) binary, &kernel_header->data[0],␊ |
| OSSwapBigToHostInt32(kernel_header->compressed_size));␊ |
| if (uncompressed_size != size) {␊ |
| error("size mismatch from lzss: %x\n", size);␊ |
| return -1;␊ |
| }␊ |
| if (OSSwapBigToHostInt32(kernel_header->adler32) !=␊ |
| Adler32(binary, uncompressed_size)) {␊ |
| printf("adler mismatch\n");␊ |
| return -1;␊ |
| }␊ |
| }␊ |
| ␊ |
| // Notify modules that the kernel has been decompressed, is about to be decoded␊ |
| ␉␉uncompressed_size = OSSwapBigToHostInt32(kernel_header->uncompressed_size);␊ |
| ␉␉binary = buffer = malloc(uncompressed_size);␊ |
| ␉␉␊ |
| ␉␉size = decompress_lzss((u_int8_t *) binary, &kernel_header->data[0],␊ |
| ␉␉␉␉␉␉␉ OSSwapBigToHostInt32(kernel_header->compressed_size));␊ |
| ␉␉if (uncompressed_size != size) {␊ |
| ␉␉␉error("size mismatch from lzss: %x\n", size);␊ |
| ␉␉␉return -1;␊ |
| ␉␉}␊ |
| ␉␉␊ |
| ␉␉if (OSSwapBigToHostInt32(kernel_header->adler32) !=␊ |
| ␉␉␉Adler32(binary, uncompressed_size))␊ |
| ␉␉{␊ |
| ␉␉␉printf("adler mismatch\n");␊ |
| ␉␉␉return -1;␊ |
| ␉␉}␊ |
| ␉}␊ |
| ␉␊ |
| ␉// Notify modules that the kernel has been decompressed, is about to be decoded␊ |
| ␉execute_hook("DecodeKernel", (void*)binary, NULL, NULL, NULL);␊ |
| ␊ |
| ret = ThinFatFile(&binary, &len);␊ |
| if (ret == 0 && len == 0 && archCpuType==CPU_TYPE_X86_64)␊ |
| {␊ |
| ␉ archCpuType=CPU_TYPE_I386;␊ |
| ␉ ret = ThinFatFile(&binary, &len);␊ |
| }␊ |
| ␊ |
| ret = DecodeMachO(binary, rentry, raddr, rsize);␊ |
| ␉␊ |
| if (ret<0 && archCpuType==CPU_TYPE_X86_64)␊ |
| {␊ |
| ␉ archCpuType=CPU_TYPE_I386;␊ |
| ␉ret = ThinFatFile(&binary, &len);␊ |
| ␉ if (ret == 0 && len == 0 && archCpuType==CPU_TYPE_X86_64)␊ |
| ␉ {␊ |
| ␉␉ archCpuType=CPU_TYPE_I386;␊ |
| ␉␉ ret = ThinFatFile(&binary, &len);␊ |
| ␉ }␊ |
| ␊ |
| ␉ ret = DecodeMachO(binary, rentry, raddr, rsize);␊ |
| }␊ |
| ␊ |
| return ret;␊ |
| ␊ |
| ␉ if (ret<0 && archCpuType==CPU_TYPE_X86_64)␊ |
| ␉ {␊ |
| ␉␉ archCpuType=CPU_TYPE_I386;␊ |
| ␉␉ ret = DecodeMachO(binary, rentry, raddr, rsize);␊ |
| ␉ }␊ |
| ␊ |
| ␉ return ret;␊ |
| }␊ |
