| char␉␉gRootDevice[512];␊ |
| char␉␉gMKextName[512];␊ |
| char␉␉gMacOSVersion[8];␊ |
| static char␉gBootKernelCacheFile[512];␊ |
| int␉␉␉bvCount = 0, gDeviceCount = 0;␊ |
| //int␉␉menucount = 0;␊ |
| long␉␉gBootMode; /* defaults to 0 == kBootModeNormal */␊ |
|
| ␉return 0;␊ |
| }␊ |
| ␊ |
| ␊ |
| //==========================================================================␊ |
| // LoadKernelCache - Try to load Kernel Cache.␊ |
| // return the length of the loaded cache file or -1 on error␊ |
| long LoadKernelCache(void **binary) {␊ |
| ␉char␉␉kernelCacheFile[512];␊ |
| ␉char␉␉kernelCachePath[512];␊ |
| ␉const char␉*val;␊ |
| ␉int␉␉ len;␊ |
| ␉long␉␉flags, time, cachetime, kerneltime, exttime, ret=-1;␊ |
| unsigned long adler32;␊ |
| ␊ |
| ␉// Determine the name of the Kernel Cache␊ |
| ␉if (getValueForKey(kKernelCacheKey, &val, &len, &bootInfo->bootConfig)) {␊ |
| ␉␉if (val[0] == '\\')␊ |
| ␉␉{␊ |
| ␉␉␉len--;␊ |
| ␉␉␉val++;␊ |
| ␉␉}␊ |
| ␉␉strlcpy(kernelCacheFile, val, len + 1);␊ |
| ␉}␊ |
| ␉else {␊ |
| ␉␉// Lion prelink kernel cache file␊ |
| ␉␉if (checkOSVersion("10.7")) {␊ |
| ␉␉␉sprintf(kernelCacheFile, "%skernelcache", kDefaultCachePathSnow);␊ |
| ␉␉}␊ |
| ␉␉// Snow Leopard prelink kernel cache file␊ |
| ␉␉else if (checkOSVersion("10.6")) {␊ |
| ␉␉␉sprintf(kernelCacheFile, "kernelcache_%s", (archCpuType == CPU_TYPE_I386)␊ |
| ␉␉␉␉␉? "i386" : "x86_64");␊ |
| ␉␉␉int lnam = strlen(kernelCacheFile) + 9; //with adler32␊ |
| ␊ |
| ␉␉␉char* name;␊ |
| ␉␉␉long prev_time = 0;␊ |
| ␊ |
| ␉␉␉struct dirstuff* cacheDir = opendir(kDefaultCachePathSnow);␊ |
| ␊ |
| ␉␉␉while(readdir(cacheDir, (const char**)&name, &flags, &time) >= 0)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉if (((flags & kFileTypeMask) != kFileTypeDirectory) && time > prev_time␊ |
| ␉␉␉␉␉&& strstr(name, kernelCacheFile) && (name[lnam] != '.'))␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉sprintf(kernelCacheFile, "%s%s", kDefaultCachePathSnow, name);␊ |
| ␉␉␉␉␉prev_time = time;␊ |
| ␉␉␉␉}␊ |
| ␉␉␉}␊ |
| ␉␉}␊ |
| ␉␉else {␊ |
| ␉␉␉// Reset cache name.␊ |
| ␉␉␉bzero(gCacheNameAdler + 64, sizeof(gCacheNameAdler) - 64);␊ |
| ␉␉␉sprintf(gCacheNameAdler + 64, "%s,%s", gRootDevice, bootInfo->bootFile);␊ |
| ␉␉␉adler32 = Adler32((unsigned char *)gCacheNameAdler, sizeof(gCacheNameAdler));␊ |
| ␉␉␉sprintf(kernelCacheFile, "%s.%08lX", kDefaultCachePathLeo, adler32);␊ |
| ␉␉}␊ |
| ␉}␊ |
| ␊ |
| ␉// kernelCacheFile must start with a /␊ |
| ␉if (kernelCacheFile[0] != '/') {␊ |
| ␉␉char *str = strdup(kernelCacheFile);␊ |
| ␉␉if (str == NULL)␊ |
| ␉␉␉return -1;␊ |
| ␉␉sprintf(kernelCacheFile, "/%s", str);␊ |
| ␉␉free(str);␊ |
| ␉}␊ |
| ␊ |
| ␉// Check if the kernel cache file exists␊ |
| ␉ret = -1;␊ |
| ␊ |
| ␉// If boot from a boot helper partition check the kernel cache file on it␊ |
| ␉if (gBootVolume->flags & kBVFlagBooter) {␊ |
| ␉␉sprintf(kernelCachePath, "com.apple.boot.P%s", kernelCacheFile);␊ |
| ␉␉ret = GetFileInfo(NULL, kernelCachePath, &flags, &cachetime);␊ |
| ␉␉if ((ret == -1) || ((flags & kFileTypeMask) != kFileTypeFlat))␊ |
| ␉␉{␊ |
| ␉␉␉sprintf(kernelCachePath, "com.apple.boot.R%s", kernelCacheFile);␊ |
| ␉␉␉ret = GetFileInfo(NULL, kernelCachePath, &flags, &cachetime);␊ |
| ␉␉␉if ((ret == -1) || ((flags & kFileTypeMask) != kFileTypeFlat))␊ |
| ␉␉␉{␊ |
| ␉␉␉␉sprintf(kernelCachePath, "com.apple.boot.S%s", kernelCacheFile);␊ |
| ␉␉␉␉ret = GetFileInfo(NULL, kernelCachePath, &flags, &cachetime);␊ |
| ␉␉␉␉if ((flags & kFileTypeMask) != kFileTypeFlat)␊ |
| ␉␉␉␉␉ret = -1;␊ |
| ␉␉␉}␊ |
| ␉␉}␊ |
| ␉}␊ |
| ␉// If not found, use the original kernel cache path.␊ |
| ␉if (ret == -1) {␊ |
| ␉␉strcpy(kernelCachePath, kernelCacheFile);␊ |
| ␉␉ret = GetFileInfo(NULL, kernelCachePath, &flags, &cachetime);␊ |
| ␉␉if ((flags & kFileTypeMask) != kFileTypeFlat)␊ |
| ␉␉␉ret = -1;␊ |
| ␉}␊ |
| ␊ |
| ␉// Exit if kernel cache file wasn't found␊ |
| ␉if (ret == -1) {␊ |
| ␉␉verbose("No Kernel Cache File '%s' found\n", kernelCacheFile);␊ |
| ␉␉return -1;␊ |
| ␉}␊ |
| ␊ |
| ␉// Check if the kernel cache file is more recent (mtime)␊ |
| ␉// than the kernel file or the S/L/E directory␊ |
| ␉ret = GetFileInfo(NULL, bootInfo->bootFile, &flags, &kerneltime);␊ |
| ␉// Check if the kernel file is more recent than the cache file␊ |
| ␉if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeFlat)␊ |
| ␉␉&& (kerneltime > cachetime))␊ |
| ␉␉return -1;␊ |
| ␊ |
| ␉ret = GetFileInfo("/System/Library/", "Extensions", &flags, &exttime);␊ |
| ␉// Check if the S/L/E directory time is more recent than the cache file␊ |
| ␉if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeDirectory)␊ |
| ␉␉&& (exttime > cachetime))␊ |
| ␉␉return -1;␊ |
| ␊ |
| ␉// Since the kernel cache file exists and is the most recent try to load it␊ |
| ␉verbose("Loading kernel cache %s\n", kernelCachePath);␊ |
| ␊ |
| ␉if (checkOSVersion("10.7")) {␊ |
| ␉␉ret = LoadThinFatFile(kernelCachePath, binary);␊ |
| ␉} else {␊ |
| ␉␉ret = LoadFile(kernelCachePath);␊ |
| ␉␉*binary = (void *)kLoadAddr;␊ |
| ␉}␊ |
| ␉return ret; // ret contain the length of the binary␊ |
| }␊ |
| ␊ |
| //==========================================================================␊ |
| // This is the entrypoint from real-mode which functions exactly as it did␊ |
| // before. Multiboot does its own runtime initialization, does some of its␊ |
| // own things, and then calls common_boot.␊ |
|
| ␉bool␉ ␉␉firstRun = true;␊ |
| ␉bool␉ ␉␉instantMenu;␊ |
| ␉bool␉ ␉␉rescanPrompt;␊ |
| ␉char␉ ␉␉*bootFile;␊ |
| ␉int␉␉␉␉status;␊ |
| ␉unsigned int␉allowBVFlags = kBVFlagSystemVolume | kBVFlagForeignBoot;␊ |
| ␉unsigned int␉denyBVFlags = kBVFlagEFISystem;␊ |
| ␉unsigned long␉adler32;␊ |
| ␉␊ |
| ␉// Set reminder to unload the PXE base code. Neglect to unload␊ |
| ␉// the base code will result in a hang or kernel panic.␊ |
|
| ␉␉bool␉␉tryresume, tryresumedefault, forceresume;␊ |
| ␉␉bool␉␉useKernelCache = false; // by default don't use prelink kernel cache␊ |
| ␉␉const char␉*val;␊ |
| ␉␉int␉␉␉len, trycache, ret = -1;␊ |
| ␉␉long␉␉flags, cachetime, kerneltime, exttime, sleeptime, time;␊ |
| ␉␉int␉␉␉len, ret = -1;␊ |
| ␉␉long␉␉flags, sleeptime, time;␊ |
| ␉␉void␉␉*binary = (void *)kLoadAddr;␊ |
| ␉␉␊ |
| ␉␉// additional variable for testing alternate kernel image locations on boot helper partitions.␊ |
| ␉␉char␉␉bootFileSpec[512];␊ |
| ␉␉char bootFile[512];␊ |
| ␉␉char␉␉bootFilePath[512];␊ |
| ␉␉␊ |
| ␉␉// Initialize globals.␊ |
| ␉␉sysConfigValid = false;␊ |
|
| ␉␉␉break;␊ |
| ␉␉}␊ |
| ␉␉␊ |
| ␉␉verbose("Loading Darwin %s\n", gMacOSVersion);␊ |
| ␊ |
| ␉␉// If boot from boot helper partitions and OS is Lion use prelink kernel.␊ |
| ␉␉// We need to find a solution to load extra mkext with a prelink kernel.␊ |
| ␉␉if (gBootVolume->flags & kBVFlagBooter && checkOSVersion("10.7")) {␊ |
| ␉␉␉verbose("Booting from Lion RAID volume so forcing to use KernelCache\n");␊ |
| ␉␉␉useKernelCache = true;␊ |
| ␉␉} else {␊ |
| ␉␉␉getBoolForKey(kUseKernelCache, &useKernelCache, &bootInfo->chameleonConfig);␊ |
| ␉␉␉bool useKernelCacheConfig = false; // by default don't use prelink kernel cache␊ |
| ␉␉␉getBoolForKey(kUseKernelCache, &useKernelCacheConfig, &bootInfo->chameleonConfig);␊ |
| ␉␉␉useKernelCache = (useKernelCacheConfig &&␊ |
| ␉␉␉␉␉␉␉ ((gBootMode & kBootModeSafe) == 0) &&␊ |
| ␉␉␉␉␉␉␉ !gOverrideKernel &&␊ |
| ␉␉␉␉␉␉␉ (gMKextName[0] == 0) &&␊ |
| ␉␉␉␉␉␉␉ (gBootFileType == kBlockDeviceType));␊ |
| ␉␉}␊ |
| ␊ |
| ␉␉if (useKernelCache) {␊ |
| ␉␉␉if (getValueForKey(kKernelCacheKey, &val, &len, &bootInfo->bootConfig)) {␊ |
| ␉␉␉␉if (val[0] == '\\')␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉len--;␊ |
| ␉␉␉␉␉val++;␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉strlcpy(gBootKernelCacheFile, val, len + 1);␊ |
| ␉␉␉}␊ |
| ␉␉␉else {␊ |
| ␉␉␉␉// Lion prelink kernel cache file␊ |
| ␉␉␉␉if (checkOSVersion("10.7")) {␊ |
| ␉␉␉␉␉sprintf(gBootKernelCacheFile, "%skernelcache", kDefaultCachePathSnow);␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉// Snow Leopard prelink kernel cache file␊ |
| ␉␉␉␉else if (checkOSVersion("10.6")) {␊ |
| ␉␉␉␉␉sprintf(gBootKernelCacheFile, "kernelcache_%s", (archCpuType == CPU_TYPE_I386)␊ |
| ␉␉␉␉␉␉␉? "i386" : "x86_64");␊ |
| ␉␉␉␉␉int lnam = sizeof(gBootKernelCacheFile) + 9; //with adler32␊ |
| ␉␉␉␉␉␊ |
| ␉␉␉␉␉char* name;␊ |
| ␉␉␉␉␉long prev_time = 0;␊ |
| ␉␉␉␉␉␊ |
| ␉␉␉␉␉struct dirstuff* cacheDir = opendir(kDefaultCachePathSnow);␊ |
| ␉␉␉␉␉␊ |
| ␉␉␉␉␉while(readdir(cacheDir, (const char**)&name, &flags, &time) >= 0)␊ |
| ␉␉␉␉␉{␊ |
| ␉␉␉␉␉␉if (((flags & kFileTypeMask) != kFileTypeDirectory) && time > prev_time␊ |
| ␉␉␉␉␉␉␉&& strstr(name, gBootKernelCacheFile) && (name[lnam] != '.'))␊ |
| ␉␉␉␉␉␉{␊ |
| ␉␉␉␉␉␉␉sprintf(gBootKernelCacheFile, "%s%s", kDefaultCachePathSnow, name);␊ |
| ␉␉␉␉␉␉␉prev_time = time;␊ |
| ␉␉␉␉␉␉}␊ |
| ␉␉␉␉␉}␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉else {␊ |
| ␉␉␉␉␉// Reset cache name.␊ |
| ␉␉␉␉␉bzero(gCacheNameAdler + 64, sizeof(gCacheNameAdler) - 64);␊ |
| ␉␉␉␉␉␊ |
| ␉␉␉␉␉sprintf(gCacheNameAdler + 64, "%s,%s", gRootDevice, bootInfo->bootFile);␊ |
| ␉␉␉␉␉␊ |
| ␉␉␉␉␉adler32 = Adler32((unsigned char *)gCacheNameAdler, sizeof(gCacheNameAdler));␊ |
| ␉␉␉␉␉␊ |
| ␉␉␉␉␉sprintf(gBootKernelCacheFile, "%s.%08lX", kDefaultCachePathLeo, adler32);␊ |
| ␉␉␉␉}␊ |
| ␉␉␉}␊ |
| ␉␉}␊ |
| ␉␉␊ |
| ␉␉// Check for cache file.␊ |
| ␉␉trycache = (useKernelCache &&␊ |
| ␉␉␉␉␉((gBootMode & kBootModeSafe) == 0) &&␊ |
| ␉␉␉␉␉!gOverrideKernel &&␊ |
| ␉␉␉␉␉(gBootFileType == kBlockDeviceType) &&␊ |
| ␉␉␉␉␉(gMKextName[0] == '\0') &&␊ |
| ␉␉␉␉␉(gBootKernelCacheFile[0] != '\0'));␊ |
| ␉␉␊ |
| ␉␉verbose("Loading Darwin %s\n", gMacOSVersion);␊ |
| ␊ |
| ␉␉// Check if the kernel cache file exists and is more recent (mtime) than␊ |
| ␉␉// the kernel file or the S/L/E directory␊ |
| ␊ |
| ␉␉if (trycache) do {␊ |
| ␊ |
| ␉␉␉ret = GetFileInfo(NULL, gBootKernelCacheFile, &flags, &cachetime);␊ |
| ␉␉␉// Check if the kernel cache file exist␊ |
| ␉␉␉if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)) {␊ |
| ␉␉␉␉trycache = 0;␊ |
| ␉␉␉␉break;␊ |
| ␉␉␉}␊ |
| ␊ |
| ␉␉␉ret = GetFileInfo(NULL, bootInfo->bootFile, &flags, &kerneltime);␊ |
| ␉␉␉if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat))␊ |
| ␉␉␉␉kerneltime = -1;␊ |
| ␉␉␉// Check if the kernel file is more recent than the cache file␊ |
| ␉␉␉if (kerneltime > cachetime) {␊ |
| ␉␉␉␉trycache = 0;␊ |
| ␉␉␉␉break;␊ |
| ␉␉␉}␊ |
| ␊ |
| ␉␉␉ret = GetFileInfo("/System/Library/", "Extensions", &flags, &exttime);␊ |
| ␉␉␉if ((ret != 0) && ((flags & kFileTypeMask) != kFileTypeDirectory))␊ |
| ␉␉␉␉exttime = -1;␊ |
| ␉␉␉// Check if the S/L/E directory time is more recent than the cache file␊ |
| ␉␉␉if (exttime > cachetime) {␊ |
| ␉␉␉␉trycache = 0;␊ |
| ␉␉␉␉break;␊ |
| ␉␉␉}␊ |
| ␉␉} while (0);␊ |
| ␊ |
| ␉␉do {␊ |
| ␉␉␉if (trycache) {␊ |
| ␉␉␉␉bootFile = gBootKernelCacheFile;␊ |
| ␉␉␉␉␊ |
| ␉␉␉␉verbose("Loading kernel cache %s\n", bootFile);␊ |
| ␉␉␉␉␊ |
| ␉␉␉␉if (checkOSVersion("10.7")) {␊ |
| ␉␉␉␉␉ret = LoadThinFatFile(bootFile, &binary);␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉else {␊ |
| ␉␉␉␉␉ret = LoadFile(bootFile);␊ |
| ␉␉␉␉␉binary = (void *)kLoadAddr;␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉␊ |
| ␉␉␉if (useKernelCache) {␊ |
| ␉␉␉␉ret = LoadKernelCache(&binary);␊ |
| ␉␉␉␉if (ret >= 0)␊ |
| ␉␉␉␉␉break;␊ |
| ␉␉␉␉␊ |
| ␉␉␉␉verbose("Kernel cache did not load %s\n ", bootFile);␊ |
| ␉␉␉}␊ |
| ␉␉␉␊ |
| ␉␉␉if (checkOSVersion("10.7")) {␊ |
| ␉␉␉␉bootFile = gBootKernelCacheFile;␊ |
| ␉␉␉}␊ |
| ␉␉␉else {␊ |
| ␊ |
| ␉␉␉// bootFile must start with a /␊ |
| ␉␉␉if ((bootInfo->bootFile)[0] != '/')␊ |
| ␉␉␉␉sprintf(bootFile, "/%s", bootInfo->bootFile);␊ |
| ␉␉␉}␊ |
| ␉␉␉␊ |
| ␉␉␉else␊ |
| ␉␉␉␉strcpy(bootFile, bootInfo->bootFile);␊ |
| ␊ |
| ␉␉␉// Try to load kernel image from alternate locations on boot helper partitions.␊ |
| ␉␉␉sprintf(bootFileSpec, "com.apple.boot.P%s", bootFile);␊ |
| ␉␉␉ret = GetFileInfo(NULL, bootFileSpec, &flags, &time); ␊ |
| ␉␉␉if (ret == -1)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉sprintf(bootFileSpec, "com.apple.boot.R%s", bootFile);␊ |
| ␉␉␉␉ret = GetFileInfo(NULL, bootFileSpec, &flags, &time); ␊ |
| ␉␉␉ret = -1;␊ |
| ␉␉␉if (gBootVolume->flags & kBVFlagBooter) {␊ |
| ␉␉␉␉sprintf(bootFilePath, "com.apple.boot.P%s", bootFile);␊ |
| ␉␉␉␉ret = GetFileInfo(NULL, bootFilePath, &flags, &time);␊ |
| ␉␉␉␉if (ret == -1)␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉sprintf(bootFileSpec, "com.apple.boot.S%s", bootFile);␊ |
| ␉␉␉␉␉ret = GetFileInfo(NULL, bootFileSpec, &flags, &time); ␊ |
| ␉␉␉␉␉sprintf(bootFilePath, "com.apple.boot.R%s", bootFile);␊ |
| ␉␉␉␉␉ret = GetFileInfo(NULL, bootFilePath, &flags, &time);␊ |
| ␉␉␉␉␉if (ret == -1)␊ |
| ␉␉␉␉␉{␊ |
| ␉␉␉␉␉␉// No alternate location found, using the original kernel image path.␊ |
| ␉␉␉␉␉␉strcpy(bootFileSpec, bootInfo->bootFile);␊ |
| ␉␉␉␉␉␉sprintf(bootFilePath, "com.apple.boot.S%s", bootFile);␊ |
| ␉␉␉␉␉␉ret = GetFileInfo(NULL, bootFilePath, &flags, &time);␊ |
| ␉␉␉␉␉}␊ |
| ␉␉␉␉}␊ |
| ␉␉␉}␊ |
| ␉␉␉if (ret == -1) {␊ |
| ␉␉␉␉// No alternate location found, using the original kernel image path.␊ |
| ␉␉␉␉strcpy(bootFilePath, bootFile);␊ |
| ␉␉␉}␊ |
| ␉␉␉␊ |
| ␉␉␉if (checkOSVersion("10.7"))␊ |
| ␉␉␉verbose("Loading kernel %s\n", bootFilePath);␊ |
| ␉␉␉ret = LoadThinFatFile(bootFilePath, &binary);␊ |
| ␉␉␉if (ret <= 0 && archCpuType == CPU_TYPE_X86_64)␊ |
| ␉␉␉{␊ |
| ␉␉␉␉//Lion, dont load kernel if haz cache␊ |
| ␉␉␉␉if (!trycache) ␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉verbose("Loading kernel %s\n", bootFileSpec);␊ |
| ␉␉␉␉␉ret = LoadThinFatFile(bootFileSpec, &binary);␊ |
| ␉␉␉␉␉if (ret <= 0 && archCpuType == CPU_TYPE_X86_64) ␊ |
| ␉␉␉␉␉{␊ |
| ␉␉␉␉␉␉archCpuType = CPU_TYPE_I386;␊ |
| ␉␉␉␉␉␉ret = LoadThinFatFile(bootFileSpec, &binary);␉␉␉␉␊ |
| ␉␉␉␉␉}␊ |
| ␉␉␉␉} ␊ |
| ␉␉␉␉else ret = 1;␊ |
| ␉␉␉} ␊ |
| ␉␉␉else ␊ |
| ␉␉␉{␊ |
| ␉␉␉␉//Snow Leopard or older␊ |
| ␉␉␉␉verbose("Loading kernel %s\n", bootFileSpec);␊ |
| ␉␉␉␉ret = LoadThinFatFile(bootFileSpec, &binary);␊ |
| ␉␉␉␉if (ret <= 0 && archCpuType == CPU_TYPE_X86_64) ␊ |
| ␉␉␉␉{␊ |
| ␉␉␉␉␉archCpuType = CPU_TYPE_I386;␊ |
| ␉␉␉␉␉ret = LoadThinFatFile(bootFileSpec, &binary);␉␉␉␉␊ |
| ␉␉␉␉}␊ |
| ␉␉␉␉archCpuType = CPU_TYPE_I386;␊ |
| ␉␉␉␉ret = LoadThinFatFile(bootFilePath, &binary);␊ |
| ␉␉␉}␊ |
| ␉␉} while (0);␊ |
| ␉␉␊ |
