| 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 | /*␊ |
| 26 | * Mach Operating System␊ |
| 27 | * Copyright (c) 1990 Carnegie-Mellon University␊ |
| 28 | * Copyright (c) 1989 Carnegie-Mellon University␊ |
| 29 | * All rights reserved.␉ The CMU software License Agreement specifies␊ |
| 30 | * the terms and conditions for use and redistribution.␊ |
| 31 | *␊ |
| 32 | * INTEL CORPORATION PROPRIETARY INFORMATION␊ |
| 33 | *␊ |
| 34 | * This software is supplied under the terms of a license agreement or␊ |
| 35 | * nondisclosure agreement with Intel Corporation and may not be copied␊ |
| 36 | * nor disclosed except in accordance with the terms of that agreement.␊ |
| 37 | *␊ |
| 38 | *␉Copyright 1988, 1989 by Intel Corporation␊ |
| 39 | *␊ |
| 40 | *␊ |
| 41 | * Copyright 1993 NeXT Computer, Inc.␊ |
| 42 | * All rights reserved.␊ |
| 43 | *␊ |
| 44 | * Completely reworked by Sam Streeper (sam_s@NeXT.com)␊ |
| 45 | * Reworked again by Curtis Galloway (galloway@NeXT.com)␊ |
| 46 | */␊ |
| 47 | ␊ |
| 48 | #include "boot.h"␊ |
| 49 | #include "bootstruct.h"␊ |
| 50 | #include "fake_efi.h"␊ |
| 51 | #include "sl.h"␊ |
| 52 | #include "libsa.h"␊ |
| 53 | #include "ramdisk.h"␊ |
| 54 | #include "gui.h"␊ |
| 55 | #include "platform.h"␊ |
| 56 | #include "modules.h"␊ |
| 57 | #include "device_tree.h"␊ |
| 58 | ␊ |
| 59 | #ifndef DEBUG_BOOT2␊ |
| 60 | ␉#define DEBUG_BOOT2 0␊ |
| 61 | #endif␊ |
| 62 | ␊ |
| 63 | #ifndef DEBUG_INTERRUPTS␊ |
| 64 | ␉#define DEBUG_INTERRUPTS 0␊ |
| 65 | #endif␊ |
| 66 | ␊ |
| 67 | #if DEBUG_BOOT2␊ |
| 68 | ␉#define DBG(x...)␉printf(x)␊ |
| 69 | #else␊ |
| 70 | ␉#define DBG(x...)␉msglog(x)␊ |
| 71 | #endif␊ |
| 72 | ␊ |
| 73 | /*␊ |
| 74 | * How long to wait (in seconds) to load the␊ |
| 75 | * kernel after displaying the "boot:" prompt.␊ |
| 76 | */␊ |
| 77 | #define kBootErrorTimeout 5␊ |
| 78 | ␊ |
| 79 | bool␉␉gOverrideKernel;␊ |
| 80 | bool␉␉gEnableCDROMRescan;␊ |
| 81 | bool␉␉gScanSingleDrive;␊ |
| 82 | bool␉␉useGUI;␊ |
| 83 | ␊ |
| 84 | #if DEBUG_INTERRUPTS␊ |
| 85 | ␉static int␉interruptsAvailable = 0;␊ |
| 86 | #endif␊ |
| 87 | ␊ |
| 88 | static bool␉gUnloadPXEOnExit = false;␊ |
| 89 | ␊ |
| 90 | static char␉gCacheNameAdler[64 + 256];␊ |
| 91 | char␉␉*gPlatformName = gCacheNameAdler;␊ |
| 92 | ␊ |
| 93 | char␉␉gRootDevice[ROOT_DEVICE_SIZE];␊ |
| 94 | char␉␉gMKextName[512];␊ |
| 95 | int␉␉bvCount = 0;␊ |
| 96 | int␉␉gDeviceCount = 0;␊ |
| 97 | //int␉␉menucount = 0;␊ |
| 98 | long␉␉gBootMode; /* defaults to 0 == kBootModeNormal */␊ |
| 99 | ␊ |
| 100 | BVRef␉␉bvr;␊ |
| 101 | BVRef␉␉menuBVR;␊ |
| 102 | BVRef␉␉bvChain;␊ |
| 103 | ␊ |
| 104 | static unsigned long␉Adler32(unsigned char *buffer, long length);␊ |
| 105 | //static void␉␉␉selectBiosDevice(void);␊ |
| 106 | ␊ |
| 107 | /** options.c **/␊ |
| 108 | extern char *msgbuf;␊ |
| 109 | void showTextBuffer(char *buf, int size);␊ |
| 110 | ␊ |
| 111 | //==========================================================================␊ |
| 112 | // Zero the BSS.␊ |
| 113 | ␊ |
| 114 | static void zeroBSS(void)␊ |
| 115 | {␊ |
| 116 | ␉extern char bss_start __asm("section$start$__DATA$__bss");␊ |
| 117 | ␉extern char bss_end __asm("section$end$__DATA$__bss");␊ |
| 118 | ␉extern char common_start __asm("section$start$__DATA$__common");␊ |
| 119 | ␉extern char common_end __asm("section$end$__DATA$__common");␊ |
| 120 | ␊ |
| 121 | ␉bzero(&bss_start, (&bss_end - &bss_start));␊ |
| 122 | ␉bzero(&common_start, (&common_end - &common_start));␊ |
| 123 | }␊ |
| 124 | ␊ |
| 125 | //==========================================================================␊ |
| 126 | // Malloc error function␊ |
| 127 | ␊ |
| 128 | static void malloc_error(char *addr, size_t size, const char *file, int line)␊ |
| 129 | {␊ |
| 130 | ␉stop("\nMemory allocation error! Addr: 0x%x, Size: 0x%x, File: %s, Line: %d\n",␊ |
| 131 | ␉␉␉␉␉␉␉␉␉ (unsigned)addr, (unsigned)size, file, line);␊ |
| 132 | }␊ |
| 133 | ␊ |
| 134 | //==========================================================================␊ |
| 135 | //Initializes the runtime. Right now this means zeroing the BSS and initializing malloc.␊ |
| 136 | //␊ |
| 137 | void initialize_runtime(void)␊ |
| 138 | {␊ |
| 139 | ␉zeroBSS();␊ |
| 140 | ␉malloc_init(0, 0, 0, malloc_error);␊ |
| 141 | }␊ |
| 142 | ␊ |
| 143 | //==========================================================================␊ |
| 144 | // ExecKernel - Load the kernel image (mach-o) and jump to its entry point.␊ |
| 145 | ␊ |
| 146 | static int ExecKernel(void *binary)␊ |
| 147 | {␊ |
| 148 | ␉int␉␉␉ret;␊ |
| 149 | ␉entry_t␉␉kernelEntry;␊ |
| 150 | ␊ |
| 151 | ␉bootArgs->kaddr = bootArgs->ksize = 0;␊ |
| 152 | ␊ |
| 153 | // ===============================================================================␊ |
| 154 | ␊ |
| 155 | // OS X Mountain Lion 10.8␊ |
| 156 | ␉if ( MacOSVerCurrent >= MacOSVer2Int("10.8") ) // Mountain Lion and Up!␊ |
| 157 | ␉{␊ |
| 158 | ␉␉// cparm␊ |
| 159 | ␉␉bool KPRebootOption␉= false;␊ |
| 160 | ␉␉bool HiDPIOption␉= false;␊ |
| 161 | ␉␉getBoolForKey(kRebootOnPanic, &KPRebootOption, &bootInfo->chameleonConfig);␊ |
| 162 | ␉␉if ( KPRebootOption )␊ |
| 163 | ␉␉{␊ |
| 164 | ␉␉␉bootArgs->flags |= kBootArgsFlagRebootOnPanic;␊ |
| 165 | ␉␉}␊ |
| 166 | ␊ |
| 167 | ␉␉// cparm␊ |
| 168 | ␉␉getBoolForKey(kEnableHiDPI, &HiDPIOption, &bootInfo->chameleonConfig);␊ |
| 169 | ␊ |
| 170 | ␉␉if ( HiDPIOption )␊ |
| 171 | ␉␉{␊ |
| 172 | ␉␉␉bootArgs->flags |= kBootArgsFlagHiDPI;␊ |
| 173 | ␉␉}␊ |
| 174 | ␉}␊ |
| 175 | ␊ |
| 176 | ␉// OS X Yosemite 10.10␊ |
| 177 | ␉if ( MacOSVerCurrent >= MacOSVer2Int("10.10") ) // Yosemite and Up!␊ |
| 178 | ␉{␊ |
| 179 | ␉␉// Pike R. Alpha␊ |
| 180 | ␉␉bool FlagBlackOption␉= false;␊ |
| 181 | ␉␉getBoolForKey(kBlackMode, &FlagBlackOption, &bootInfo->chameleonConfig);␊ |
| 182 | ␉␉if ( FlagBlackOption )␊ |
| 183 | ␉␉{␊ |
| 184 | ␉␉␉//bootArgs->flags |= kBootArgsFlagBlack;␊ |
| 185 | ␉␉␉bootArgs->flags |= kBootArgsFlagBlackBg; // Micky1979␊ |
| 186 | ␉␉}␊ |
| 187 | ␉}␊ |
| 188 | ␊ |
| 189 | ␉// OS X El Capitan 10.11␊ |
| 190 | ␉if ( MacOSVerCurrent >= MacOSVer2Int("10.11") ) // El Capitan and Up!␊ |
| 191 | ␉{␊ |
| 192 | ␉␉// ErmaC␊ |
| 193 | ␉␉int␉crsValue;␊ |
| 194 | ␊ |
| 195 | #if 0␊ |
| 196 | ␉␉/*␊ |
| 197 | ␉␉ * A special BootArgs flag "kBootArgsFlagCSRBoot"␊ |
| 198 | ␉␉ * is set in the Recovery or Installation environment.␊ |
| 199 | ␉␉ * This flag is kind of overkill by turning off all the protections␊ |
| 200 | ␉␉ */␊ |
| 201 | ␊ |
| 202 | ␉␉if (isRecoveryHD)␊ |
| 203 | ␉␉{␊ |
| 204 | ␉␉␉// SIP can be controlled with or without FileNVRAM.kext (Pike R. Alpha)␊ |
| 205 | ␉␉␉bootArgs->flags␉|=␉(kBootArgsFlagCSRActiveConfig + kBootArgsFlagCSRConfigMode + kBootArgsFlagCSRBoot);␊ |
| 206 | ␉␉}␊ |
| 207 | #endif␊ |
| 208 | ␊ |
| 209 | ␉␉bootArgs->flags␉␉|= kBootArgsFlagCSRActiveConfig;␊ |
| 210 | ␊ |
| 211 | ␉␉// Set limit to 7bit␊ |
| 212 | ␉␉if ( getIntForKey(kCsrActiveConfig, &crsValue, &bootInfo->chameleonConfig) && (crsValue >= 0 && crsValue <= 127) )␊ |
| 213 | ␉␉{␊ |
| 214 | ␉␉␉bootArgs->csrActiveConfig␉= crsValue;␊ |
| 215 | ␉␉}␊ |
| 216 | ␉␉else␊ |
| 217 | ␉␉{␊ |
| 218 | ␉␉␉// zenith432␊ |
| 219 | ␉␉␉bootArgs->csrActiveConfig␉= 0x67;␊ |
| 220 | ␉␉}␊ |
| 221 | ␉␉bootArgs->csrCapabilities␉= CSR_VALID_FLAGS;␊ |
| 222 | ␉␉bootArgs->boot_SMC_plimit␉= 0;␊ |
| 223 | }␊ |
| 224 | ␊ |
| 225 | // ===============================================================================␊ |
| 226 | ␊ |
| 227 | ␉execute_hook("ExecKernel", (void *)binary, NULL, NULL, NULL);␊ |
| 228 | ␊ |
| 229 | ␉ret = DecodeKernel(binary,␊ |
| 230 | ␉␉␉␉␉ &kernelEntry,␊ |
| 231 | ␉␉␉␉␉ (char **) &bootArgs->kaddr,␊ |
| 232 | ␉␉␉␉␉ (int *)&bootArgs->ksize);␊ |
| 233 | ␊ |
| 234 | ␉if ( ret != 0 )␊ |
| 235 | ␉{␊ |
| 236 | ␉␉printf("Decoding kernel failed.\n");␊ |
| 237 | ␉␉pause();␊ |
| 238 | ␉␉return ret;␊ |
| 239 | ␉}␊ |
| 240 | ␊ |
| 241 | ␉// Reserve space for boot args␊ |
| 242 | ␉reserveKernBootStruct();␊ |
| 243 | ␊ |
| 244 | ␉// Notify modules that the kernel has been decoded␊ |
| 245 | ␉execute_hook("DecodedKernel", (void *)binary, (void *)bootArgs->kaddr, (void *)bootArgs->ksize, NULL);␊ |
| 246 | ␊ |
| 247 | ␉setupFakeEfi();␊ |
| 248 | ␊ |
| 249 | ␉// Load boot drivers from the specifed root path.␊ |
| 250 | ␉//if (!gHaveKernelCache)␊ |
| 251 | ␉{␊ |
| 252 | ␉␉LoadDrivers("/");␊ |
| 253 | ␉}␊ |
| 254 | ␊ |
| 255 | ␉execute_hook("DriversLoaded", (void *)binary, NULL, NULL, NULL);␊ |
| 256 | ␊ |
| 257 | ␉clearActivityIndicator();␊ |
| 258 | ␊ |
| 259 | ␉if (gErrors)␊ |
| 260 | ␉{␊ |
| 261 | ␉␉printf("Errors encountered while starting up the computer.\n");␊ |
| 262 | ␉␉printf("Pausing %d seconds...\n", kBootErrorTimeout);␊ |
| 263 | ␉␉sleep(kBootErrorTimeout);␊ |
| 264 | ␉}␊ |
| 265 | ␊ |
| 266 | ␉md0Ramdisk();␊ |
| 267 | ␊ |
| 268 | ␉// Cleanup the PXE base code.␊ |
| 269 | ␊ |
| 270 | ␉if ( (gBootFileType == kNetworkDeviceType) && gUnloadPXEOnExit )␊ |
| 271 | ␉{␊ |
| 272 | ␉␉if ( (ret = nbpUnloadBaseCode()) != nbpStatusSuccess )␊ |
| 273 | ␉␉{␊ |
| 274 | ␉␉␉printf("nbpUnloadBaseCode error %d\n", (int)ret);␊ |
| 275 | ␉␉␉sleep(2);␊ |
| 276 | ␉␉}␊ |
| 277 | ␉}␊ |
| 278 | ␊ |
| 279 | ␉bool dummyVal;␊ |
| 280 | ␉if (getBoolForKey(kWaitForKeypressKey, &dummyVal, &bootInfo->chameleonConfig) && dummyVal)␊ |
| 281 | ␉{␊ |
| 282 | ␉␉showTextBuffer(msgbuf, strlen(msgbuf));␊ |
| 283 | ␉}␊ |
| 284 | ␊ |
| 285 | ␉usb_loop();␊ |
| 286 | ␊ |
| 287 | #if DEBUG␊ |
| 288 | ␉if (interruptsAvailable) ShowInterruptCounters();␊ |
| 289 | #endif␊ |
| 290 | ␊ |
| 291 | ␉// If we were in text mode, switch to graphics mode.␊ |
| 292 | ␉// This will draw the boot graphics unless we are in␊ |
| 293 | ␉// verbose mode.␊ |
| 294 | ␉if (gVerboseMode)␊ |
| 295 | ␉{␊ |
| 296 | ␉␉setVideoMode( GRAPHICS_MODE );␊ |
| 297 | ␉}␊ |
| 298 | ␉else␊ |
| 299 | ␉{␊ |
| 300 | ␉␉drawBootGraphics();␊ |
| 301 | ␉}␊ |
| 302 | ␊ |
| 303 | ␉DBG("Starting Darwin/%s [%s]\n",( archCpuType == CPU_TYPE_I386 ) ? "x86" : "x86_64", gDarwinBuildVerStr);␊ |
| 304 | ␉DBG("Boot Args: %s\n", bootArgs->CommandLine);␊ |
| 305 | ␊ |
| 306 | ␉setupBooterLog();␊ |
| 307 | ␊ |
| 308 | ␉finalizeBootStruct();␊ |
| 309 | ␊ |
| 310 | ␉// Jump to kernel's entry point. There's no going back now.␊ |
| 311 | ␉if ( MacOSVerCurrent < MacOSVer2Int("10.7") )␊ |
| 312 | ␉{␊ |
| 313 | ␉␉// Notify modules that the kernel is about to be started␊ |
| 314 | ␉␉execute_hook("Kernel Start", (void *)kernelEntry, (void *)bootArgsLegacy, NULL, NULL);␊ |
| 315 | ␊ |
| 316 | ␉␉startprog( kernelEntry, bootArgsLegacy );␊ |
| 317 | ␉}␊ |
| 318 | ␉else␊ |
| 319 | ␉{␊ |
| 320 | ␉␉// Notify modules that the kernel is about to be started␊ |
| 321 | ␉␉execute_hook("Kernel Start", (void *)kernelEntry, (void *)bootArgs, NULL, NULL);␊ |
| 322 | ␊ |
| 323 | ␉␉startprog( kernelEntry, bootArgs );␊ |
| 324 | ␉}␊ |
| 325 | ␊ |
| 326 | ␉// Not reached␊ |
| 327 | ␉__builtin_unreachable();␊ |
| 328 | }␊ |
| 329 | ␊ |
| 330 | //==========================================================================␊ |
| 331 | // LoadKernelCache - Try to load Kernel Cache.␊ |
| 332 | // return the length of the loaded cache file or -1 on error␊ |
| 333 | long LoadKernelCache(const char *cacheFile, void **binary)␊ |
| 334 | {␊ |
| 335 | ␉char␉␉kernelCacheFile[512];␊ |
| 336 | ␉char␉␉kernelCachePath[512];␊ |
| 337 | ␉long␉␉flags, ret=-1;␊ |
| 338 | ␉unsigned long␉adler32 = 0;␊ |
| 339 | ␉u_int32_t time, cachetime, kerneltime, exttime;␊ |
| 340 | ␊ |
| 341 | ␉if((gBootMode & kBootModeSafe) != 0)␊ |
| 342 | ␉{␊ |
| 343 | ␉␉DBG("Kernel Cache ignored.\n");␊ |
| 344 | ␉␉return -1;␊ |
| 345 | ␉}␊ |
| 346 | ␊ |
| 347 | ␉// Use specify kernel cache file if not empty␊ |
| 348 | ␉if (cacheFile[0] != 0)␊ |
| 349 | ␉{␊ |
| 350 | ␉␉strlcpy(kernelCacheFile, cacheFile, sizeof(kernelCacheFile));␊ |
| 351 | ␉␉verbose("Specified kernel cache file path: %s\n", cacheFile);␊ |
| 352 | ␉}␊ |
| 353 | ␉else␊ |
| 354 | ␉{␊ |
| 355 | ␉␉// Leopard prelink kernel cache file␊ |
| 356 | ␉␉if ( MacOSVerCurrent >= MacOSVer2Int("10.4") && MacOSVerCurrent <= MacOSVer2Int("10.5") ) // OSX is 10.4 or 10.5␊ |
| 357 | ␉␉{␊ |
| 358 | ␉␉␉// Reset cache name.␊ |
| 359 | ␉␉␉bzero(gCacheNameAdler + 64, sizeof(gCacheNameAdler) - 64);␊ |
| 360 | ␉␉␉snprintf(gCacheNameAdler + 64, sizeof(gCacheNameAdler) - 64, "%s,%s", gRootDevice, bootInfo->bootFile);␊ |
| 361 | ␉␉␉adler32 = Adler32((unsigned char *)gCacheNameAdler, sizeof(gCacheNameAdler));␊ |
| 362 | ␉␉␉snprintf(kernelCacheFile, sizeof(kernelCacheFile), "%s.%08lX", kDefaultCachePathLeo, adler32);␊ |
| 363 | ␉␉␉verbose("Reseted kernel cache file path: %s\n", kernelCacheFile);␊ |
| 364 | ␊ |
| 365 | ␉␉}␊ |
| 366 | ␉␉// Snow Leopard prelink kernel cache file␊ |
| 367 | ␉␉else if ( MacOSVerCurrent >= MacOSVer2Int("10.6") && MacOSVerCurrent < MacOSVer2Int("10.7") )␊ |
| 368 | ␉␉{␊ |
| 369 | ␉␉␉snprintf(kernelCacheFile, sizeof(kernelCacheFile), "kernelcache_%s",␊ |
| 370 | ␉␉␉␉(archCpuType == CPU_TYPE_I386) ? "i386" : "x86_64");␊ |
| 371 | ␊ |
| 372 | ␉␉␉int␉␉lnam = strlen(kernelCacheFile) + 9; //with adler32␊ |
| 373 | ␉␉␉char␉␉*name;␊ |
| 374 | ␉␉␉u_int32_t␉prev_time = 0;␊ |
| 375 | ␊ |
| 376 | ␉␉␉struct dirstuff *cacheDir = opendir(kDefaultCachePathSnow);␊ |
| 377 | ␊ |
| 378 | ␉␉␉/* TODO: handle error? */␊ |
| 379 | ␉␉␉if (cacheDir)␊ |
| 380 | ␉␉␉{␊ |
| 381 | ␉␉␉␉while(readdir(cacheDir, (const char**)&name, &flags, &time) >= 0)␊ |
| 382 | ␉␉␉␉{␊ |
| 383 | ␉␉␉␉␉if (((flags & kFileTypeMask) != kFileTypeDirectory) && time > prev_time␊ |
| 384 | ␉␉␉␉␉␉&& strstr(name, kernelCacheFile) && (name[lnam] != '.'))␊ |
| 385 | ␉␉␉␉␉{␊ |
| 386 | ␉␉␉␉␉␉snprintf(kernelCacheFile, sizeof(kernelCacheFile), "%s%s", kDefaultCachePathSnow, name);␊ |
| 387 | ␉␉␉␉␉␉prev_time = time;␊ |
| 388 | ␉␉␉␉␉}␊ |
| 389 | ␉␉␉␉}␊ |
| 390 | ␉␉␉␉verbose("Kernel Cache file path (Mac OS X 10.6): %s\n", kernelCacheFile);␊ |
| 391 | ␉␉␉}␊ |
| 392 | ␉␉␉closedir(cacheDir);␊ |
| 393 | ␉␉}␊ |
| 394 | ␉␉else if ( MacOSVerCurrent >= MacOSVer2Int("10.7") && MacOSVerCurrent < MacOSVer2Int("10.10") )␊ |
| 395 | ␉␉{␊ |
| 396 | ␉␉␉// Lion, Mountain Lion and Mavericks prelink kernel cache file␊ |
| 397 | ␉␉␉// for 10.7 10.8 10.9␊ |
| 398 | ␉␉␉snprintf(kernelCacheFile, sizeof(kernelCacheFile), "%skernelcache", kDefaultCachePathSnow);␊ |
| 399 | ␉␉␉verbose("Kernel Cache file path (Mac OS X 10.7 and newer): %s\n", kernelCacheFile);␊ |
| 400 | ␊ |
| 401 | ␉␉}␊ |
| 402 | ␉␉else␊ |
| 403 | ␉␉{␊ |
| 404 | ␉␉␉// Yosemite and El Capitan prelink kernel cache file␊ |
| 405 | ␉␉␉// for 10.10 10.11␊ |
| 406 | ␉␉␉snprintf(kernelCacheFile, sizeof(kernelCacheFile), "%sprelinkedkernel", kDefaultCachePathYosemite);␊ |
| 407 | ␉␉␉verbose("Kernel Cache file path (OS X 10.10 and newer): %s\n", kernelCacheFile);␊ |
| 408 | ␉␉}␊ |
| 409 | ␉}␊ |
| 410 | ␊ |
| 411 | ␉// Check if the kernel cache file exists␊ |
| 412 | ␉ret = -1;␊ |
| 413 | ␊ |
| 414 | ␉if (gBootVolume->flags & kBVFlagBooter)␊ |
| 415 | ␉{␊ |
| 416 | ␉␉snprintf(kernelCachePath, sizeof(kernelCachePath), "/com.apple.boot.P/%s", kernelCacheFile);␊ |
| 417 | ␉␉ret = GetFileInfo(NULL, kernelCachePath, &flags, &cachetime);␊ |
| 418 | ␊ |
| 419 | ␉␉if ((ret == -1) || ((flags & kFileTypeMask) != kFileTypeFlat))␊ |
| 420 | ␉␉{␊ |
| 421 | ␉␉␉snprintf(kernelCachePath, sizeof(kernelCachePath), "/com.apple.boot.R/%s", kernelCacheFile);␊ |
| 422 | ␉␉␉ret = GetFileInfo(NULL, kernelCachePath, &flags, &cachetime);␊ |
| 423 | ␊ |
| 424 | ␉␉␉if ((ret == -1) || ((flags & kFileTypeMask) != kFileTypeFlat))␊ |
| 425 | ␉␉␉{␊ |
| 426 | ␉␉␉␉snprintf(kernelCachePath, sizeof(kernelCachePath), "/com.apple.boot.S/%s", kernelCacheFile);␊ |
| 427 | ␉␉␉␉ret = GetFileInfo(NULL, kernelCachePath, &flags, &cachetime);␊ |
| 428 | ␊ |
| 429 | ␉␉␉␉if ((ret == -1) || ((flags & kFileTypeMask) != kFileTypeFlat))␊ |
| 430 | ␉␉␉␉{␊ |
| 431 | ␉␉␉␉␉strncpy(kernelCachePath, "/com.apple.recovery.boot/kernelcache", sizeof(kernelCachePath) );␊ |
| 432 | ␉␉␉␉␉ret = GetFileInfo(NULL, kernelCachePath, &flags, &cachetime);␊ |
| 433 | ␊ |
| 434 | ␉␉␉␉␉if ((flags & kFileTypeMask) != kFileTypeFlat)␊ |
| 435 | ␉␉␉␉␉{␊ |
| 436 | ␉␉␉␉␉␉ret = -1;␊ |
| 437 | ␉␉␉␉␉}␊ |
| 438 | ␉␉␉␉}␊ |
| 439 | ␉␉␉}␊ |
| 440 | ␉␉}␊ |
| 441 | ␉}␊ |
| 442 | ␊ |
| 443 | ␉// If not found, use the original kernel cache path.␊ |
| 444 | ␉if (ret == -1)␊ |
| 445 | ␉{␊ |
| 446 | ␉␉strlcpy(kernelCachePath, kernelCacheFile, sizeof(kernelCachePath));␊ |
| 447 | ␉␉ret = GetFileInfo(NULL, kernelCachePath, &flags, &cachetime);␊ |
| 448 | ␊ |
| 449 | ␉␉if ((flags & kFileTypeMask) != kFileTypeFlat)␊ |
| 450 | ␉␉{␊ |
| 451 | ␉␉␉ret = -1;␊ |
| 452 | ␉␉}␊ |
| 453 | ␉}␊ |
| 454 | ␊ |
| 455 | ␉// Exit if kernel cache file wasn't found␊ |
| 456 | ␉if (ret == -1)␊ |
| 457 | ␉{␊ |
| 458 | ␉␉DBG("No Kernel Cache File '%s' found\n", kernelCacheFile);␊ |
| 459 | ␉␉return -1;␊ |
| 460 | ␉}␊ |
| 461 | ␊ |
| 462 | ␉// Check if the kernel cache file is more recent (mtime)␊ |
| 463 | ␉// than the kernel file or the S/L/E directory␊ |
| 464 | ␉ret = GetFileInfo(NULL, bootInfo->bootFile, &flags, &kerneltime);␊ |
| 465 | ␊ |
| 466 | ␉// Check if the kernel file is more recent than the cache file␊ |
| 467 | ␉if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeFlat) && (kerneltime > cachetime))␊ |
| 468 | ␉{␊ |
| 469 | ␉␉DBG("Kernel file '%s' is more recent than Kernel Cache '%s'! Ignoring Kernel Cache.\n", bootInfo->bootFile, kernelCacheFile);␊ |
| 470 | ␉␉return -1;␊ |
| 471 | ␉}␊ |
| 472 | ␊ |
| 473 | ␉ret = GetFileInfo("/System/Library/", "Extensions", &flags, &exttime);␊ |
| 474 | ␊ |
| 475 | ␉// Check if the S/L/E directory time is more recent than the cache file␊ |
| 476 | ␉if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeDirectory) && (exttime > cachetime))␊ |
| 477 | ␉{␊ |
| 478 | ␉␉DBG("Folder '/System/Library/Extensions' is more recent than Kernel Cache file '%s'! Ignoring Kernel Cache.\n", kernelCacheFile);␊ |
| 479 | ␉␉return -1;␊ |
| 480 | ␉}␊ |
| 481 | ␊ |
| 482 | ␉// Since the kernel cache file exists and is the most recent try to load it␊ |
| 483 | ␉DBG("Loading Kernel Cache from: '%s%s' (%s)\n", gBootVolume->label, gBootVolume->altlabel, gBootVolume->type_name);␊ |
| 484 | ␊ |
| 485 | ␉ret = LoadThinFatFile(kernelCachePath, binary);␊ |
| 486 | ␉return ret; // ret contain the length of the binary␊ |
| 487 | }␊ |
| 488 | ␊ |
| 489 | //==========================================================================␊ |
| 490 | // This is the entrypoint from real-mode which functions exactly as it did␊ |
| 491 | // before. Multiboot does its own runtime initialization, does some of its␊ |
| 492 | // own things, and then calls common_boot.␊ |
| 493 | void boot(int biosdev)␊ |
| 494 | {␊ |
| 495 | ␉// Enable A20 gate before accessing memory above 1Mb.␊ |
| 496 | ␉// Note: malloc_init(), called via initialize_runtime() writes␊ |
| 497 | ␉// memory >= 1Mb, so A20 must be enabled before calling it. - zenith432␊ |
| 498 | ␉enableA20();␊ |
| 499 | ␉initialize_runtime();␊ |
| 500 | ␉common_boot(biosdev);␊ |
| 501 | }␊ |
| 502 | ␊ |
| 503 | //==========================================================================␊ |
| 504 | // The 'main' function for the booter. Called by boot0 when booting␊ |
| 505 | // from a block device, or by the network booter.␊ |
| 506 | //␊ |
| 507 | // arguments:␊ |
| 508 | //␉ biosdev - Value passed from boot1/NBP to specify the device␊ |
| 509 | //␉␉␉ that the booter was loaded from.␊ |
| 510 | //␊ |
| 511 | // If biosdev is kBIOSDevNetwork, then this function will return if␊ |
| 512 | // booting was unsuccessful. This allows the PXE firmware to try the␊ |
| 513 | // next boot device on its list.␊ |
| 514 | void common_boot(int biosdev)␊ |
| 515 | {␊ |
| 516 | ␉bool␉ ␉␉quiet;␊ |
| 517 | ␉bool␉ ␉␉firstRun = true;␊ |
| 518 | ␉bool␉ ␉␉instantMenu;␊ |
| 519 | ␉bool␉ ␉␉rescanPrompt;␊ |
| 520 | ␉int␉␉␉status;␊ |
| 521 | ␉unsigned int␉␉allowBVFlags = kBVFlagSystemVolume | kBVFlagForeignBoot;␊ |
| 522 | ␉unsigned int␉␉denyBVFlags = kBVFlagEFISystem;␊ |
| 523 | ␊ |
| 524 | ␉// Set reminder to unload the PXE base code. Neglect to unload␊ |
| 525 | ␉// the base code will result in a hang or kernel panic.␊ |
| 526 | ␉gUnloadPXEOnExit = true;␊ |
| 527 | ␊ |
| 528 | ␉// Record the device that the booter was loaded from.␊ |
| 529 | ␉gBIOSDev = biosdev & kBIOSDevMask;␊ |
| 530 | ␊ |
| 531 | ␉// Initialize boot-log␊ |
| 532 | ␉initBooterLog();␊ |
| 533 | ␊ |
| 534 | #if DEBUG_INTERRUPTS␊ |
| 535 | ␉// Enable interrupts␊ |
| 536 | ␉interruptsAvailable = SetupInterrupts();␊ |
| 537 | ␉if (interruptsAvailable)␊ |
| 538 | ␉{␊ |
| 539 | ␉␉EnableInterrupts();␊ |
| 540 | ␉}␊ |
| 541 | #endif␊ |
| 542 | ␊ |
| 543 | ␉// Initialize boot info structure.␊ |
| 544 | ␉initKernBootStruct();␊ |
| 545 | ␊ |
| 546 | ␉// Setup VGA text mode.␊ |
| 547 | ␉// Not sure if it is safe to call setVideoMode() before the␊ |
| 548 | ␉// config table has been loaded. Call video_mode() instead.␊ |
| 549 | #if DEBUG␊ |
| 550 | ␉printf("before video_mode\n");␊ |
| 551 | #endif␊ |
| 552 | ␉video_mode( 2 ); // 80x25 mono text mode.␊ |
| 553 | #if DEBUG␊ |
| 554 | ␉printf("after video_mode\n");␊ |
| 555 | #endif␊ |
| 556 | ␊ |
| 557 | ␉// Scan and record the system's hardware information.␊ |
| 558 | ␉scan_platform();␊ |
| 559 | ␊ |
| 560 | ␉// First get info for boot volume.␊ |
| 561 | ␉scanBootVolumes(gBIOSDev, 0);␊ |
| 562 | ␉bvChain = getBVChainForBIOSDev(gBIOSDev);␊ |
| 563 | ␉setBootGlobals(bvChain);␊ |
| 564 | ␊ |
| 565 | ␉// Load boot.plist config file␊ |
| 566 | ␉status = loadChameleonConfig(&bootInfo->chameleonConfig, bvChain);␊ |
| 567 | ␊ |
| 568 | ␉if (getBoolForKey(kQuietBootKey, &quiet, &bootInfo->chameleonConfig) && quiet)␊ |
| 569 | ␉{␊ |
| 570 | ␉␉gBootMode |= kBootModeQuiet;␊ |
| 571 | ␉}␊ |
| 572 | ␊ |
| 573 | ␉// Override firstRun to get to the boot menu instantly by setting "Instant Menu"=y in system config␊ |
| 574 | ␉if (getBoolForKey(kInstantMenuKey, &instantMenu, &bootInfo->chameleonConfig) && instantMenu)␊ |
| 575 | ␉{␊ |
| 576 | ␉␉firstRun = false;␊ |
| 577 | ␉}␊ |
| 578 | ␊ |
| 579 | ␉// Loading preboot ramdisk if exists.␊ |
| 580 | ␉loadPrebootRAMDisk();␊ |
| 581 | ␊ |
| 582 | ␉// Disable rescan option by default␊ |
| 583 | ␉gEnableCDROMRescan = false;␊ |
| 584 | ␊ |
| 585 | ␉// Enable it with Rescan=y in system config␊ |
| 586 | ␉if (getBoolForKey(kRescanKey, &gEnableCDROMRescan, &bootInfo->chameleonConfig)␉&& gEnableCDROMRescan)␊ |
| 587 | ␉{␊ |
| 588 | ␉␉gEnableCDROMRescan = true;␊ |
| 589 | ␉}␊ |
| 590 | ␊ |
| 591 | ␉// Disable rescanPrompt option by default␊ |
| 592 | ␉rescanPrompt = false;␊ |
| 593 | ␊ |
| 594 | ␉// Ask the user for Rescan option by setting "Rescan Prompt"=y in system config.␊ |
| 595 | ␉if (getBoolForKey(kRescanPromptKey, &rescanPrompt , &bootInfo->chameleonConfig) && rescanPrompt && biosDevIsCDROM(gBIOSDev))␊ |
| 596 | ␉{␊ |
| 597 | ␉␉gEnableCDROMRescan = promptForRescanOption();␊ |
| 598 | ␉}␊ |
| 599 | ␊ |
| 600 | ␉// Enable touching a single BIOS device only if "Scan Single Drive"=y is set in system config.␊ |
| 601 | ␉if (getBoolForKey(kScanSingleDriveKey, &gScanSingleDrive, &bootInfo->chameleonConfig) && gScanSingleDrive)␊ |
| 602 | ␉{␊ |
| 603 | ␉␉gScanSingleDrive = true;␊ |
| 604 | ␉}␊ |
| 605 | ␊ |
| 606 | ␉// Create a list of partitions on device(s).␊ |
| 607 | ␉if (gScanSingleDrive)␊ |
| 608 | ␉{␊ |
| 609 | ␉␉scanBootVolumes(gBIOSDev, &bvCount);␊ |
| 610 | ␉}␊ |
| 611 | ␉else␊ |
| 612 | ␉{␊ |
| 613 | ␉␉scanDisks(gBIOSDev, &bvCount);␊ |
| 614 | ␉}␊ |
| 615 | ␊ |
| 616 | ␉// Create a separated bvr chain using the specified filters.␊ |
| 617 | ␉bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);␊ |
| 618 | ␊ |
| 619 | ␉gBootVolume = selectBootVolume(bvChain);␊ |
| 620 | ␊ |
| 621 | ␉// Intialize module system␊ |
| 622 | ␉init_module_system();␊ |
| 623 | ␊ |
| 624 | #if DEBUG␊ |
| 625 | ␉printf("Default: %d, ->biosdev: %d, ->part_no: %d ->flags: 0x%08X\n",␊ |
| 626 | ␉␉gBootVolume, gBootVolume->biosdev, gBootVolume->part_no, gBootVolume->flags);␊ |
| 627 | ␉printf("bt(0,0): %d, ->biosdev: %d, ->part_no: %d ->flags: 0x%08X\n",␊ |
| 628 | ␉␉gBIOSBootVolume, gBIOSBootVolume->biosdev, gBIOSBootVolume->part_no, gBIOSBootVolume->flags);␊ |
| 629 | ␉getchar();␊ |
| 630 | #endif␊ |
| 631 | ␊ |
| 632 | ␉useGUI = true;␊ |
| 633 | ␉// Override useGUI default␊ |
| 634 | ␉getBoolForKey(kGUIKey, &useGUI, &bootInfo->chameleonConfig);␊ |
| 635 | ␉if (useGUI && initGUI())␊ |
| 636 | ␉{␊ |
| 637 | ␉␉// initGUI() returned with an error, disabling GUI.␊ |
| 638 | ␉␉useGUI = false;␊ |
| 639 | ␉}␊ |
| 640 | ␊ |
| 641 | ␉setBootGlobals(bvChain);␊ |
| 642 | ␊ |
| 643 | ␉// Parse args, load and start kernel.␊ |
| 644 | ␉while (1)␊ |
| 645 | ␉{␊ |
| 646 | ␉␉bool␉␉tryresume, tryresumedefault, forceresume;␊ |
| 647 | ␉␉bool␉␉useKernelCache = true; // by default try to use the prelinked kernel␊ |
| 648 | ␉␉const char␉*val;␊ |
| 649 | ␉␉int␉␉␉len, ret = -1;␊ |
| 650 | ␉␉long␉␉flags;␊ |
| 651 | ␉␉u_int32_t␉sleeptime, time;␊ |
| 652 | ␉␉void␉␉*binary = (void *)kLoadAddr;␊ |
| 653 | ␊ |
| 654 | ␉␉char␉␉bootFile[sizeof(bootInfo->bootFile)];␊ |
| 655 | ␉␉char␉␉bootFilePath[512];␊ |
| 656 | ␉␉char␉␉kernelCacheFile[512];␊ |
| 657 | ␊ |
| 658 | ␉␉// Initialize globals.␊ |
| 659 | ␉␉sysConfigValid = false;␊ |
| 660 | ␉␉gErrors␉␉ = false;␊ |
| 661 | ␊ |
| 662 | ␉␉status = getBootOptions(firstRun);␊ |
| 663 | ␉␉firstRun = false;␊ |
| 664 | ␉␉if (status == -1) continue;␊ |
| 665 | ␊ |
| 666 | ␉␉status = processBootOptions();␊ |
| 667 | ␉␉// Status == 1 means to chainboot␊ |
| 668 | ␉␉if ( status ==␉1 ) break;␊ |
| 669 | ␉␉// Status == -1 means that the config file couldn't be loaded or that gBootVolume is NULL␊ |
| 670 | ␉␉if ( status == -1 )␊ |
| 671 | ␉␉{␊ |
| 672 | ␉␉␉// gBootVolume == NULL usually means the user hit escape.␊ |
| 673 | ␉␉␉if (gBootVolume == NULL)␊ |
| 674 | ␉␉␉{␊ |
| 675 | ␉␉␉␉freeFilteredBVChain(bvChain);␊ |
| 676 | ␊ |
| 677 | ␉␉␉␉if (gEnableCDROMRescan)␊ |
| 678 | ␉␉␉␉␉rescanBIOSDevice(gBIOSDev);␊ |
| 679 | ␊ |
| 680 | ␉␉␉␉bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);␊ |
| 681 | ␉␉␉␉setBootGlobals(bvChain);␊ |
| 682 | ␉␉␉␉setupDeviceList(&bootInfo->themeConfig);␊ |
| 683 | ␉␉␉}␊ |
| 684 | ␉␉␉continue;␊ |
| 685 | ␉␉}␊ |
| 686 | ␊ |
| 687 | ␉␉// Other status (e.g. 0) means that we should proceed with boot.␊ |
| 688 | ␊ |
| 689 | ␉␉// Turn off any GUI elements␊ |
| 690 | ␉␉if ( bootArgs->Video.v_display == GRAPHICS_MODE )␊ |
| 691 | ␉␉{␊ |
| 692 | ␉␉␉gui.devicelist.draw = false;␊ |
| 693 | ␉␉␉gui.bootprompt.draw = false;␊ |
| 694 | ␉␉␉gui.menu.draw = false;␊ |
| 695 | ␉␉␉gui.infobox.draw = false;␊ |
| 696 | ␉␉␉gui.logo.draw = false;␊ |
| 697 | ␉␉␉drawBackground();␊ |
| 698 | ␉␉␉updateVRAM();␊ |
| 699 | ␉␉}␊ |
| 700 | ␊ |
| 701 | ␉␉if (platformCPUFeature(CPU_FEATURE_EM64T))␊ |
| 702 | ␉␉{␊ |
| 703 | ␉␉␉archCpuType = CPU_TYPE_X86_64;␊ |
| 704 | ␉␉}␊ |
| 705 | ␉␉else␊ |
| 706 | ␉␉{␊ |
| 707 | ␉␉␉archCpuType = CPU_TYPE_I386;␊ |
| 708 | ␉␉}␊ |
| 709 | ␊ |
| 710 | ␉␉if (getValueForKey(karch, &val, &len, &bootInfo->chameleonConfig))␊ |
| 711 | ␉␉{␊ |
| 712 | ␉␉␉if (strncmp(val, "x86_64", sizeof("x86_64") ) == 0)␊ |
| 713 | ␉␉␉{␊ |
| 714 | ␉␉␉␉archCpuType = CPU_TYPE_X86_64;␊ |
| 715 | ␉␉␉}␊ |
| 716 | ␉␉␉else if (strncmp(val, "i386", sizeof("i386") ) == 0)␊ |
| 717 | ␉␉␉{␊ |
| 718 | ␉␉␉␉archCpuType = CPU_TYPE_I386;␊ |
| 719 | ␉␉␉}␊ |
| 720 | ␉␉␉else␊ |
| 721 | ␉␉␉{␊ |
| 722 | ␉␉␉␉DBG("Incorrect parameter for option 'arch =' , please use x86_64 or i386\n");␊ |
| 723 | ␉␉␉}␊ |
| 724 | ␉␉}␊ |
| 725 | ␊ |
| 726 | ␉␉if (getValueForKey(kKernelArchKey, &val, &len, &bootInfo->chameleonConfig))␊ |
| 727 | ␉␉{␊ |
| 728 | ␉␉␉if (strncmp(val, "i386", sizeof("i386") ) == 0)␊ |
| 729 | ␉␉␉{␊ |
| 730 | ␉␉␉␉archCpuType = CPU_TYPE_I386;␊ |
| 731 | ␉␉␉}␊ |
| 732 | ␉␉}␊ |
| 733 | ␊ |
| 734 | ␉␉// Notify modules that we are attempting to boot␊ |
| 735 | ␉␉execute_hook("PreBoot", NULL, NULL, NULL, NULL);␊ |
| 736 | ␊ |
| 737 | ␉␉if (!getBoolForKey (kWake, &tryresume, &bootInfo->chameleonConfig))␊ |
| 738 | ␉␉{␊ |
| 739 | ␉␉␉tryresume = true;␊ |
| 740 | ␉␉␉tryresumedefault = true;␊ |
| 741 | ␉␉}␊ |
| 742 | ␉␉else␊ |
| 743 | ␉␉{␊ |
| 744 | ␉␉␉tryresumedefault = false;␊ |
| 745 | ␉␉}␊ |
| 746 | ␊ |
| 747 | ␉␉if (!getBoolForKey (kForceWake, &forceresume, &bootInfo->chameleonConfig))␊ |
| 748 | ␉␉{␊ |
| 749 | ␉␉␉forceresume = false;␊ |
| 750 | ␉␉}␊ |
| 751 | ␊ |
| 752 | ␉␉if (forceresume)␊ |
| 753 | ␉␉{␊ |
| 754 | ␉␉␉tryresume = true;␊ |
| 755 | ␉␉␉tryresumedefault = false;␊ |
| 756 | ␉␉}␊ |
| 757 | ␊ |
| 758 | ␉␉while (tryresume)␊ |
| 759 | ␉␉{␊ |
| 760 | ␉␉␉const char *tmp;␊ |
| 761 | ␉␉␉BVRef bvr;␊ |
| 762 | ␉␉␉if (!getValueForKey(kWakeImage, &val, &len, &bootInfo->chameleonConfig))␊ |
| 763 | ␉␉␉␉val = "/private/var/vm/sleepimage";␊ |
| 764 | ␊ |
| 765 | ␉␉␉// Do this first to be sure that root volume is mounted␊ |
| 766 | ␉␉␉ret = GetFileInfo(0, val, &flags, &sleeptime);␊ |
| 767 | ␊ |
| 768 | ␉␉␉if ((bvr = getBootVolumeRef(val, &tmp)) == NULL)␊ |
| 769 | ␉␉␉␉break;␊ |
| 770 | ␊ |
| 771 | ␉␉␉// Can't check if it was hibernation Wake=y is required␊ |
| 772 | ␉␉␉if (bvr->modTime == 0 && tryresumedefault)␊ |
| 773 | ␉␉␉␉break;␊ |
| 774 | ␊ |
| 775 | ␉␉␉if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat))␊ |
| 776 | ␉␉␉␉break;␊ |
| 777 | ␊ |
| 778 | ␉␉␉if (!forceresume && ((sleeptime+3)<bvr->modTime))␊ |
| 779 | ␉␉␉{␊ |
| 780 | #if DEBUG␊ |
| 781 | ␉␉␉␉printf ("Hibernate image is too old by %d seconds. Use ForceWake=y to override\n",␊ |
| 782 | ␉␉␉␉␉␉bvr->modTime-sleeptime);␊ |
| 783 | #endif␊ |
| 784 | ␉␉␉␉break;␊ |
| 785 | ␉␉␉}␊ |
| 786 | ␊ |
| 787 | ␉␉␉HibernateBoot((char *)val);␊ |
| 788 | ␉␉␉break;␊ |
| 789 | ␉␉}␊ |
| 790 | ␊ |
| 791 | ␉␉getBoolForKey(kUseKernelCache, &useKernelCache, &bootInfo->chameleonConfig);␊ |
| 792 | ␉␉if (useKernelCache)␊ |
| 793 | ␉␉{␊ |
| 794 | ␉␉␉do␊ |
| 795 | ␉␉␉{␊ |
| 796 | ␉␉␉␉// Determine the name of the Kernel Cache␊ |
| 797 | ␉␉␉␉if (getValueForKey(kKernelCacheKey, &val, &len, &bootInfo->bootConfig))␊ |
| 798 | ␉␉␉␉{␊ |
| 799 | ␉␉␉␉␉if (val[0] == '\\')␊ |
| 800 | ␉␉␉␉␉{␊ |
| 801 | ␉␉␉␉␉␉len--;␊ |
| 802 | ␉␉␉␉␉␉val++;␊ |
| 803 | ␉␉␉␉␉}␊ |
| 804 | ␉␉␉␉␉/* FIXME: check len vs sizeof(kernelCacheFile) */␊ |
| 805 | ␉␉␉␉␉strlcpy(kernelCacheFile, val, len + 1);␊ |
| 806 | ␉␉␉␉}␊ |
| 807 | ␉␉␉␉else␊ |
| 808 | ␉␉␉␉{␊ |
| 809 | ␉␉␉␉␉kernelCacheFile[0] = 0; // Use default kernel cache file␊ |
| 810 | ␉␉␉␉}␊ |
| 811 | ␊ |
| 812 | ␉␉␉␉if (gOverrideKernel && kernelCacheFile[0] == 0)␊ |
| 813 | ␉␉␉␉{␊ |
| 814 | ␉␉␉␉␉DBG("Using a non default kernel (%s) without specifying 'Kernel Cache' path, KernelCache will not be used\n", bootInfo->bootFile);␊ |
| 815 | ␉␉␉␉␉useKernelCache = false;␊ |
| 816 | ␉␉␉␉␉break;␊ |
| 817 | ␉␉␉␉}␊ |
| 818 | ␊ |
| 819 | ␉␉␉␉if (gMKextName[0] != 0)␊ |
| 820 | ␉␉␉␉{␊ |
| 821 | ␉␉␉␉␉DBG("Using a specific MKext Cache (%s), KernelCache will not be used\n", gMKextName);␊ |
| 822 | ␉␉␉␉␉useKernelCache = false;␊ |
| 823 | ␉␉␉␉␉break;␊ |
| 824 | ␉␉␉␉}␊ |
| 825 | ␊ |
| 826 | ␉␉␉␉if (gBootFileType != kBlockDeviceType)␊ |
| 827 | ␉␉␉␉{␊ |
| 828 | ␉␉␉␉␉useKernelCache = false;␊ |
| 829 | ␉␉␉␉}␊ |
| 830 | ␊ |
| 831 | ␉␉␉} while(0);␊ |
| 832 | ␉␉}␊ |
| 833 | ␉␉else␊ |
| 834 | ␉␉{␊ |
| 835 | ␉␉␉DBG("Kernel Cache using disabled by user.\n");␊ |
| 836 | ␉␉}␊ |
| 837 | ␊ |
| 838 | ␉␉do␊ |
| 839 | ␉␉{␊ |
| 840 | ␉␉␉if (useKernelCache)␊ |
| 841 | ␉␉␉{␊ |
| 842 | ␉␉␉␉ret = LoadKernelCache(kernelCacheFile, &binary);␊ |
| 843 | ␉␉␉␉if (ret >= 0)␊ |
| 844 | ␉␉␉␉{␊ |
| 845 | ␉␉␉␉␉break;␊ |
| 846 | ␉␉␉␉}␊ |
| 847 | ␉␉␉}␊ |
| 848 | ␊ |
| 849 | ␉␉␉bool bootFileWithDevice = false;␊ |
| 850 | ␉␉␉// Check if bootFile start with a device ex: bt(0,0)/Extra/mach_kernel␊ |
| 851 | ␉␉␉if (strncmp(bootInfo->bootFile, "bt(", sizeof("bt(") ) == 0 ||␊ |
| 852 | ␉␉␉␉strncmp(bootInfo->bootFile, "hd(", sizeof("hd(") ) == 0 ||␊ |
| 853 | ␉␉␉␉strncmp(bootInfo->bootFile, "rd(", sizeof("rd(") ) == 0)␊ |
| 854 | ␉␉␉{␊ |
| 855 | ␉␉␉␉bootFileWithDevice = true;␊ |
| 856 | ␉␉␉}␊ |
| 857 | ␊ |
| 858 | ␉␉␉// bootFile must start with a / if it not start with a device name␊ |
| 859 | ␉␉␉if (!bootFileWithDevice && (bootInfo->bootFile)[0] != '/')␊ |
| 860 | ␉␉␉{␊ |
| 861 | ␉␉␉␉if ( !YOSEMITE || !ELCAPITAN ) //Is not Yosemite 10.10 or El Capitan 10.11␊ |
| 862 | ␉␉␉␉{␊ |
| 863 | ␉␉␉␉␉snprintf(bootFile, sizeof(bootFile), "/%s", bootInfo->bootFile); // append a leading /␊ |
| 864 | ␉␉␉␉}␊ |
| 865 | ␉␉␉␉else␊ |
| 866 | ␉␉␉␉{␊ |
| 867 | ␉␉␉␉␉snprintf(bootFile, sizeof(bootFile), kDefaultKernelPathForYos"%s", bootInfo->bootFile); // Yosemite or El Capitan␊ |
| 868 | ␉␉␉␉}␊ |
| 869 | ␉␉␉}␊ |
| 870 | ␉␉␉else␊ |
| 871 | ␉␉␉{␊ |
| 872 | ␉␉␉␉strlcpy(bootFile, bootInfo->bootFile, sizeof(bootFile));␊ |
| 873 | ␉␉␉}␊ |
| 874 | ␊ |
| 875 | ␉␉␉// Try to load kernel image from alternate locations on boot helper partitions.␊ |
| 876 | ␉␉␉ret = -1;␊ |
| 877 | ␉␉␉if ((gBootVolume->flags & kBVFlagBooter) && !bootFileWithDevice)␊ |
| 878 | ␉␉␉{␊ |
| 879 | ␉␉␉␉snprintf(bootFilePath, sizeof(bootFilePath), "com.apple.boot.P%s", bootFile);␊ |
| 880 | ␉␉␉␉ret = GetFileInfo(NULL, bootFilePath, &flags, &time);␊ |
| 881 | ␉␉␉␉if (ret == -1)␊ |
| 882 | ␉␉␉␉{␊ |
| 883 | ␉␉␉␉␉snprintf(bootFilePath, sizeof(bootFilePath), "com.apple.boot.R%s", bootFile);␊ |
| 884 | ␉␉␉␉␉ret = GetFileInfo(NULL, bootFilePath, &flags, &time);␊ |
| 885 | ␉␉␉␉␉if (ret == -1)␊ |
| 886 | ␉␉␉␉␉{␊ |
| 887 | ␉␉␉␉␉␉snprintf(bootFilePath, sizeof(bootFilePath), "com.apple.boot.S%s", bootFile);␊ |
| 888 | ␉␉␉␉␉␉ret = GetFileInfo(NULL, bootFilePath, &flags, &time);␊ |
| 889 | ␉␉␉␉␉}␊ |
| 890 | ␉␉␉␉}␊ |
| 891 | ␉␉␉}␊ |
| 892 | ␉␉␉if (ret == -1)␊ |
| 893 | ␉␉␉{␊ |
| 894 | ␉␉␉␉// No alternate location found, using the original kernel image path.␊ |
| 895 | ␉␉␉␉strlcpy(bootFilePath, bootFile, sizeof(bootFilePath));␊ |
| 896 | ␉␉␉}␊ |
| 897 | ␊ |
| 898 | ␉␉␉DBG("Loading kernel from: '%s' (%s)\n", gBootVolume->label, gBootVolume->type_name);␊ |
| 899 | ␉␉␉ret = LoadThinFatFile(bootFilePath, &binary);␊ |
| 900 | ␉␉␉if (ret <= 0 && archCpuType == CPU_TYPE_X86_64)␊ |
| 901 | ␉␉␉{␊ |
| 902 | ␉␉␉␉archCpuType = CPU_TYPE_I386;␊ |
| 903 | ␉␉␉␉ret = LoadThinFatFile(bootFilePath, &binary);␊ |
| 904 | ␉␉␉}␊ |
| 905 | ␉␉} while (0);␊ |
| 906 | ␊ |
| 907 | ␉␉clearActivityIndicator();␊ |
| 908 | ␊ |
| 909 | #if DEBUG␊ |
| 910 | ␉␉printf("Pausing...");␊ |
| 911 | ␉␉sleep(8);␊ |
| 912 | #endif␊ |
| 913 | ␊ |
| 914 | ␉␉if (ret <= 0)␊ |
| 915 | ␉␉{␊ |
| 916 | ␉␉␉printf("Can't find boot file: '%s'\n", bootFile);␊ |
| 917 | ␉␉␉sleep(1);␊ |
| 918 | ␊ |
| 919 | ␉␉␉if (gBootFileType == kNetworkDeviceType)␊ |
| 920 | ␉␉␉{␊ |
| 921 | ␉␉␉␉// Return control back to PXE. Don't unload PXE base code.␊ |
| 922 | ␉␉␉␉gUnloadPXEOnExit = false;␊ |
| 923 | ␉␉␉␉break;␊ |
| 924 | ␉␉␉}␊ |
| 925 | ␉␉␉pause();␊ |
| 926 | ␊ |
| 927 | ␉␉}␊ |
| 928 | ␉␉else␊ |
| 929 | ␉␉{␊ |
| 930 | ␉␉␉/* Won't return if successful. */␊ |
| 931 | ␉␉␉ret = ExecKernel(binary);␊ |
| 932 | ␉␉}␊ |
| 933 | ␉}␊ |
| 934 | ␊ |
| 935 | ␉// chainboot␊ |
| 936 | ␉if (status == 1)␊ |
| 937 | ␉{␊ |
| 938 | ␉␉// if we are already in graphics-mode,␊ |
| 939 | ␉␉if (getVideoMode() == GRAPHICS_MODE)␊ |
| 940 | ␉␉{␊ |
| 941 | ␉␉␉setVideoMode( VGA_TEXT_MODE ); // switch back to text mode.␊ |
| 942 | ␉␉}␊ |
| 943 | ␉}␊ |
| 944 | ␊ |
| 945 | ␉if ((gBootFileType == kNetworkDeviceType) && gUnloadPXEOnExit)␊ |
| 946 | ␉{␊ |
| 947 | ␉␉nbpUnloadBaseCode();␊ |
| 948 | ␉}␊ |
| 949 | ␊ |
| 950 | #if DEBUG_INTERRUPTS␊ |
| 951 | ␉if (interruptsAvailable)␊ |
| 952 | ␉{␊ |
| 953 | ␉␉DisableInterrupts();␊ |
| 954 | ␉}␊ |
| 955 | #endif␊ |
| 956 | ␊ |
| 957 | }␊ |
| 958 | ␊ |
| 959 | ␊ |
| 960 | // =========================================================================␊ |
| 961 | ␊ |
| 962 | /*!␊ |
| 963 | ␉Selects a new BIOS device, taking care to update the global state appropriately.␊ |
| 964 | */␊ |
| 965 | /*␊ |
| 966 | static void selectBiosDevice(void)␊ |
| 967 | {␊ |
| 968 | ␉struct DiskBVMap *oldMap = diskResetBootVolumes(gBIOSDev);␊ |
| 969 | ␉CacheReset();␊ |
| 970 | ␉diskFreeMap(oldMap);␊ |
| 971 | ␉oldMap = NULL;␊ |
| 972 | ␊ |
| 973 | ␉int dev = selectAlternateBootDevice(gBIOSDev);␊ |
| 974 | ␊ |
| 975 | ␉BVRef bvchain = scanBootVolumes(dev, 0);␊ |
| 976 | ␉BVRef bootVol = selectBootVolume(bvchain);␊ |
| 977 | ␉gBootVolume = bootVol;␊ |
| 978 | ␉setRootVolume(bootVol);␊ |
| 979 | ␉gBIOSDev = dev;␊ |
| 980 | }␊ |
| 981 | */␊ |
| 982 | ␊ |
| 983 | // =========================================================================␊ |
| 984 | bool checkOSVersion(const char *version)␊ |
| 985 | {␊ |
| 986 | ␉if ( '\0' != version[4] )␊ |
| 987 | ␉{␊ |
| 988 | ␉␉return !memcmp(&gMacOSVersion[0], &version[0], 5);␊ |
| 989 | ␉}␊ |
| 990 | ␉else␊ |
| 991 | ␉{␊ |
| 992 | ␉␉return !memcmp(&gMacOSVersion[0], &version[0], 4);␊ |
| 993 | ␉}␊ |
| 994 | }␊ |
| 995 | ␊ |
| 996 | uint32_t getMacOSVerCurrent()␊ |
| 997 | {␊ |
| 998 | ␉MacOSVerCurrent = MacOSVer2Int(gBootVolume->OSVersion);␊ |
| 999 | ␉return MacOSVerCurrent;␊ |
| 1000 | }␊ |
| 1001 | ␊ |
| 1002 | // =========================================================================␊ |
| 1003 | unsigned long Adler32(unsigned char *buf, long len)␊ |
| 1004 | {␊ |
| 1005 | #define BASE 65521L /* largest prime smaller than 65536 */␊ |
| 1006 | #define NMAX 5000␊ |
| 1007 | // NMAX (was 5521) the largest n such that 255n(n+1)/2 + (n+1)(BASE-1) <= 2^32-1␊ |
| 1008 | ␊ |
| 1009 | #define DO1(buf, i)␉{s1 += buf[i]; s2 += s1;}␊ |
| 1010 | #define DO2(buf, i)␉DO1(buf, i); DO1(buf, i + 1);␊ |
| 1011 | #define DO4(buf, i)␉DO2(buf, i); DO2(buf, i + 2);␊ |
| 1012 | #define DO8(buf, i)␉DO4(buf, i); DO4(buf, i + 4);␊ |
| 1013 | #define DO16(buf)␉DO8(buf, 0); DO8(buf, 8);␊ |
| 1014 | ␊ |
| 1015 | ␉int k;␊ |
| 1016 | ␊ |
| 1017 | ␉unsigned long s1 = 1; // adler & 0xffff;␊ |
| 1018 | ␉unsigned long s2 = 0; // (adler >> 16) & 0xffff;␊ |
| 1019 | ␉unsigned long result;␊ |
| 1020 | ␊ |
| 1021 | ␉while (len > 0) {␊ |
| 1022 | ␉␉k = len < NMAX ? len : NMAX;␊ |
| 1023 | ␉␉len -= k;␊ |
| 1024 | ␉␉while (k >= 16)␊ |
| 1025 | ␉␉{␊ |
| 1026 | ␉␉␉DO16(buf);␊ |
| 1027 | ␉␉␉buf += 16;␊ |
| 1028 | ␉␉␉k -= 16;␊ |
| 1029 | ␉␉}␊ |
| 1030 | ␊ |
| 1031 | ␉␉if (k != 0)␊ |
| 1032 | ␉␉{␊ |
| 1033 | ␉␉␉do␊ |
| 1034 | ␉␉␉{␊ |
| 1035 | ␉␉␉␉s1 += *buf++;␊ |
| 1036 | ␉␉␉␉s2 += s1;␊ |
| 1037 | ␉␉␉} while (--k);␊ |
| 1038 | ␉␉}␊ |
| 1039 | ␊ |
| 1040 | ␉␉s1 %= BASE;␊ |
| 1041 | ␉␉s2 %= BASE;␊ |
| 1042 | ␉}␊ |
| 1043 | ␊ |
| 1044 | ␉result = (s2 << 16) | s1;␊ |
| 1045 | ␊ |
| 1046 | ␉return OSSwapHostToBigInt32(result);␊ |
| 1047 | }␊ |
| 1048 | |
