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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 * Mach Operating System␊
26 * Copyright (c) 1990 Carnegie-Mellon University␊
27 * Copyright (c) 1989 Carnegie-Mellon University␊
28 * All rights reserved. The CMU software License Agreement specifies␊
29 * the terms and conditions for use and redistribution.␊
30 */␊
31␊
32/*␊
33 * INTEL CORPORATION PROPRIETARY INFORMATION␊
34 *␊
35 * This software is supplied under the terms of a license agreement or ␊
36 * nondisclosure agreement with Intel Corporation and may not be copied ␊
37 * nor disclosed except in accordance with the terms of that agreement.␊
38 *␊
39 * Copyright 1988, 1989 by Intel Corporation␊
40 */␊
41␊
42/*␊
43 * Copyright 1993 NeXT Computer, Inc.␊
44 * All rights reserved.␊
45 */␊
46␊
47/*␊
48 * Completely reworked by Sam Streeper (sam_s@NeXT.com)␊
49 * Reworked again by Curtis Galloway (galloway@NeXT.com)␊
50 */␊
51␊
52␊
53#include "boot.h"␊
54#include "bootstruct.h"␊
55#include "fake_efi.h"␊
56#include "sl.h"␊
57#include "libsa.h"␊
58#include "platform.h"␊
59#include "graphics.h"␊
60#ifndef OPTION_ROM␊
61#include "appleboot.h"␊
62#endif␊
63#include "modules.h"␊
64#include "xml.h"␊
65␊
66#ifndef DEBUG_BOOT␊
67#define DEBUG_BOOT 0␊
68#endif␊
69␊
70#if DEBUG_BOOT␊
71#define DBG(x...)␉␉printf(x)␊
72#else␊
73#define DBG(x...)␉␉␊
74#endif␊
75␊
76␊
77typedef struct platform_info {␊
78␉char platformName[PLATFORM_NAME_LEN];␊
79␉char rootPath[ROOT_PATH_LEN];␊
80} PlatformInfo;␊
81␊
82␊
83char *gboardproduct = NULL;␊
84char *gPlatformName = NULL;␊
85//char gRootPath[256];␊
86long gBootMode; /* defaults to 0 == kBootModeNormal */␊
87bool gOverrideKernel;␊
88char gBootKernelCacheFile[512];␊
89char gMKextName[512];␊
90char gMacOSVersion[8];␊
91char *gRootDevice = NULL;␊
92bool uuidSet = false;␊
93#ifndef OPTION_ROM␊
94bool gEnableCDROMRescan;␊
95bool gScanSingleDrive;␊
96#endif␊
97␊
98int bvCount = 0;␊
99//int␉menucount = 0;␊
100int gDeviceCount = 0; ␊
101␊
102BVRef bvr;␊
103BVRef menuBVR;␊
104BVRef bvChain;␊
105␊
106//static void selectBiosDevice(void);␊
107␊
108static bool getOSVersion(char *str);␊
109static void getRootDevice();␊
110␊
111#ifdef NBP_SUPPORT␊
112static bool gUnloadPXEOnExit = false;␊
113#endif␊
114␊
115/*␊
116 * How long to wait (in seconds) to load the␊
117 * kernel after displaying the "boot:" prompt.␊
118 */␊
119#define kBootErrorTimeout 5␊
120␊
121/*␊
122 * Default path to kernel cache file␊
123 */␊
124#define kDefaultCachePath "/System/Library/Caches/com.apple.kext.caches/Startup/kernelcache"␊
125␊
126//==========================================================================␊
127// Zero the BSS.␊
128␊
129static void zeroBSS(void)␊
130{␊
131␉extern char _DATA__bss__begin, _DATA__bss__end;␊
132␉extern char _DATA__common__begin, _DATA__common__end;␊
133␉␊
134␉bzero(&_DATA__bss__begin, (&_DATA__bss__end - &_DATA__bss__begin));␊
135␉bzero(&_DATA__common__begin, (&_DATA__common__end - &_DATA__common__begin));␊
136}␊
137␊
138//==========================================================================␊
139// Malloc error function␊
140␊
141#ifdef SAFE_MALLOC␊
142static inline void malloc_error(char *addr, size_t size, const char *file, int line)␊
143{␊
144 stop("\nMemory allocation error! Addr=0x%x, Size=0x%x, File=%s, Line=%d\n", (unsigned)addr, (unsigned)size, file, line);␊
145}␊
146#else␊
147static inline void malloc_error(char *addr, size_t size)␊
148{␊
149 printf("\nMemory allocation error (0x%x, 0x%x)\n", (unsigned)addr, (unsigned)size);␊
150 asm volatile ("hlt");␊
151}␊
152#endif␊
153␊
154//==========================================================================␊
155//Initializes the runtime. Right now this means zeroing the BSS and initializing malloc.␊
156//␊
157void initialize_runtime(void)␊
158{␊
159␉zeroBSS();␊
160␉malloc_init(0, 0, 0, malloc_error);␊
161}␊
162␊
163//==========================================================================␊
164// execKernel - Load the kernel image (mach-o) and jump to its entry point.␊
165␊
166static int ExecKernel(void *binary)␊
167{␊
168 entry_t kernelEntry;␊
169 int ret;␊
170␉␊
171 bootArgs->kaddr = bootArgs->ksize = 0;␊
172␉␊
173␉if(gMacOSVersion[3] <= '6')␊
174␉{␊
175␉␉bootArgs->Version = kBootArgsVersion1;␉␉␊
176␉␉bootArgs->Revision = gMacOSVersion[3];␉␊
177␉}␊
178␉else ␊
179␉{␉␉␊
180#if kBootArgsVersion > 1␊
181␉␉␊
182␉␉bootArgs->Version = kBootArgsVersion;␉␉␊
183␉␉bootArgs->Revision = kBootArgsRevision;␊
184#else␊
185␉␉bootArgs->Version = 2;␊
186 bootArgs->Revision = 0;␊
187#endif␊
188␉}␊
189␉␊
190␉execute_hook("ExecKernel", (void*)binary, NULL, NULL, NULL, NULL, NULL);␊
191␊
192 ret = DecodeKernel(binary,␊
193 &kernelEntry,␊
194 (char **) &bootArgs->kaddr,␊
195 (int *)&bootArgs->ksize );␊
196␊
197 if ( ret != 0 )␊
198 return ret;␊
199␉␊
200 // Reserve space for boot args for 10.7 only (for 10.6 and earlier, we will convert (to legacy) the structure and reserve kernel memory for it later.)␊
201␉if(gMacOSVersion[3] == '7')␊
202 reserveKernBootStruct();␊
203␉␊
204 // Load boot drivers from the specifed root path.␊
205␉␊
206 if (!gHaveKernelCache) {␊
207␉␉LoadDrivers("/");␊
208 }␊
209␉␊
210#if TEXT_SPINNER␊
211␉clearActivityIndicator();␊
212#endif␊
213␉␊
214 if (gErrors) {␊
215 printf("Errors encountered while starting up the computer.\n");␊
216 printf("Pausing %d seconds...\n", kBootErrorTimeout);␊
217 sleep(kBootErrorTimeout);␊
218 }␊
219␉␊
220␉execute_hook("md0Ramdisk", NULL, NULL, NULL, NULL, NULL, NULL);␊
221␊
222 setupFakeEfi();␊
223␉␉␊
224 verbose("Starting Darwin %s\n",( archCpuType == CPU_TYPE_I386 ) ? "x86" : "x86_64");␊
225#ifdef NBP_SUPPORT␊
226 // Cleanup the PXE base code.␊
227␉␊
228 if ( (gBootFileType == kNetworkDeviceType) && gUnloadPXEOnExit ) {␊
229␉␉if ( (ret = nbpUnloadBaseCode()) != nbpStatusSuccess )␊
230 {␊
231 ␉printf("nbpUnloadBaseCode error %d\n", (int) ret);␊
232 sleep(2);␊
233 }␊
234 }␊
235#endif ␊
236 bool wait = false;␊
237␉const char *strval = 0;␊
238␉int dummysize /*= 0*/;␉␊
239␉␊
240␉getBoolForKey(kWaitForKeypressKey, &wait, &bootInfo->bootConfig);␊
241␉␊
242␉if (getValueForBootKey(bootArgs->CommandLine, "-wait", &strval, &dummysize))␊
243␉{␊
244␉␉wait = true;␊
245␉␉␊
246␉␉if (strval && ((strcmp(strval, "no") == 0) || (strcmp(strval, "No") == 0))) {␊
247␉␉␉wait = false;␊
248␉␉} ␉␉␊
249␉}␊
250␉␉␊
251␉if (wait == true) {␊
252␉␉pause();␊
253␉}␊
254␉␉␉␊
255␉if ((execute_hook("GUI_ExecKernel", NULL, NULL, NULL, NULL, NULL, NULL) != EFI_SUCCESS)) // (bootArgs->Video.v_display == VGA_TEXT_MODE)␉␊
256␉{␊
257#if UNUSED␊
258␉␉setVideoMode( GRAPHICS_MODE, 0 );␊
259#else␊
260␉␉setVideoMode( GRAPHICS_MODE );␊
261#endif␊
262␉␉␊
263#ifndef OPTION_ROM␊
264␉␉ ␊
265␉␉if(!gVerboseMode)␊
266␉␉{␉␉␉␊
267␉␉␉drawColorRectangle(0, 0, DEFAULT_SCREEN_WIDTH, DEFAULT_SCREEN_HEIGHT, 0x01); ␊
268␉␉␊
269␉␉␉uint8_t *appleBootPict; ␊
270␉␉␉uint16_t bootImageWidth = kAppleBootWidth; ␊
271␉␉␉uint16_t bootImageHeight = kAppleBootHeight; ␊
272␉␉␉uint8_t *bootImageData = NULL; ␉␉ ␊
273␉␉␉uint16_t x, y;␊
274␉␉␉␊
275␉␉␉unsigned long screen_params[4] = {DEFAULT_SCREEN_WIDTH, DEFAULT_SCREEN_HEIGHT, 32, 0};␉// here we store the used screen resolution␊
276␉␉␉// Prepare the data for the default Apple boot image. ␊
277␉␉␉appleBootPict = (uint8_t *) decodeRLE(gAppleBootPictRLE, kAppleBootRLEBlocks, bootImageWidth * bootImageHeight); ␊
278␉␉␉if (appleBootPict) { ␊
279␉␉␉␉convertImage(bootImageWidth, bootImageHeight, appleBootPict, &bootImageData); ␊
280␉␉␉␉if (bootImageData) {␉␊
281␉␉␉␉␉x = (screen_params[0] - MIN(kAppleBootWidth, screen_params[0])) / 2; ␊
282␉␉␉␉␉y = (screen_params[1] - MIN(kAppleBootHeight, screen_params[1])) / 2; ␊
283␉␉␉␉␉drawDataRectangle(x, y, kAppleBootWidth, kAppleBootHeight, bootImageData);␊
284␉␉␉␉␉free(bootImageData);␊
285␉␉␉␉}␊
286␉␉␉␉free(appleBootPict); ␊
287␉␉␉}␊
288␉␉␊
289␉␉}␊
290#endif␊
291␉}␊
292 ␊
293 finalizeEFIConfigTable();␊
294 ␊
295␉setupBooterLog();␊
296␉␊
297 finalizeBootStruct(); ␊
298 ␊
299␉␊
300␉if (gMacOSVersion[3] <= '6') ␊
301␉␉reserveKernLegacyBootStruct(); ␉␉␊
302␉␊
303␉␊
304␉//uint8_t Pic1,Pic2;␊
305␉␊
306␉//Pic1 = inb(0x21); /* Save all interrupts Pic1 */␊
307␉//Pic2 = inb(0xa1); /* Save all interrupts Pic2 */␊
308␉␊
309␉␊
310␉␊
311␉execute_hook("Kernel Start", (void*)kernelEntry, (void*)bootArgs, NULL, NULL, NULL, NULL);␉// Notify modules that the kernel is about to be started␊
312//#if UNUSED␊
313␉turnOffFloppy();␊
314//#endif␊
315//#if BETA␊
316#include "smp.h"␊
317#include "apic.h"␊
318␉IMPS_LAPIC_WRITE(LAPIC_LVT1, LAPIC_ICR_DM_NMI);␊
319//#endif␊
320␉␊
321␉if (gMacOSVersion[3] <= '6') {␊
322␉␉␊
323␉␉//outb(0x21, Pic1); /* Restore all interrupts Pic1 */␊
324␉␉//outb(0xa1, Pic2); /* Restore all interrupts Pic2 */␊
325␉␉␊
326␉␉// Jump to kernel's entry point. There's no going back now. XXX LEGACY OS XXX␊
327␉␉startprog( kernelEntry, bootArgsLegacy );␊
328␉}␉␊
329␉␉␉␊
330␉outb(0x21, 0xff); /* Maskout all interrupts Pic1 */␊
331␉outb(0xa1, 0xff); /* Maskout all interrupts Pic2 */␊
332␉␉␊
333␉// Jump to kernel's entry point. There's no going back now. XXX LION XXX␊
334 startprog( kernelEntry, bootArgs );␊
335␉␊
336 // Not reached␊
337␉␊
338 return 0;␊
339}␊
340␊
341//==========================================================================␊
342// This is the entrypoint from real-mode which functions exactly as it did␊
343// before. Multiboot does its own runtime initialization, does some of its␊
344// own things, and then calls common_boot.␊
345void boot(int biosdev)␊
346{␊
347␉initialize_runtime();␊
348␉// Enable A20 gate before accessing memory above 1Mb.␊
349␉enableA20();␊
350␉common_boot(biosdev);␊
351}␊
352␊
353//==========================================================================␊
354// The 'main' function for the booter. Called by boot0 when booting␊
355// from a block device, or by the network booter.␊
356//␊
357// arguments:␊
358// biosdev - Value passed from boot1/NBP to specify the device␊
359// that the booter was loaded from.␊
360//␊
361// If biosdev is kBIOSDevNetwork, then this function will return if␊
362// booting was unsuccessful. This allows the PXE firmware to try the␊
363// next boot device on its list.␊
364void common_boot(int biosdev)␊
365{␊
366 int status;␊
367 char *bootFile;␊
368 bool quiet;␊
369 bool firstRun = true;␊
370 bool instantMenu;␊
371#ifndef OPTION_ROM␊
372 bool rescanPrompt;␊
373#endif␊
374 unsigned int allowBVFlags = kBVFlagSystemVolume|kBVFlagForeignBoot;␊
375 unsigned int denyBVFlags = kBVFlagEFISystem;␊
376␉␊
377#ifdef NBP_SUPPORT␊
378 // Set reminder to unload the PXE base code. Neglect to unload␊
379 // the base code will result in a hang or kernel panic.␊
380 gUnloadPXEOnExit = true;␊
381#endif␊
382 // Record the device that the booter was loaded from.␊
383 gBIOSDev = biosdev & kBIOSDevMask;␊
384␉␊
385␉␊
386␉␊
387 // Setup VGA text mode.␊
388 // Not sure if it is safe to call setVideoMode() before the␊
389 // config table has been loaded. Call video_mode() instead.␊
390#if DEBUG␊
391 printf("before video_mode\n");␊
392#endif␊
393 video_mode( 2 ); // 80x25 mono text mode.␊
394#if DEBUG␊
395 printf("after video_mode\n");␊
396#endif␊
397#if !TEXT_SPINNER␊
398␉printf("Starting Chameleon ...\n");␊
399#endif␊
400␉␊
401␉initBooterLog();␊
402␉␊
403␉// Initialize boot info structure.␊
404 initKernBootStruct();␊
405␉␊
406␉␊
407 // Scan and record the system's hardware information.␊
408 scan_platform();␊
409␉␊
410 // First get info for boot volume.␊
411 scanBootVolumes(gBIOSDev, 0);␊
412 bvChain = getBVChainForBIOSDev(gBIOSDev);␊
413 setBootGlobals(bvChain);␊
414␉␊
415 // Load boot.plist config file␊
416 status = loadSystemConfig(&bootInfo->bootConfig);␊
417␉␊
418␉Platform->CPU.isServer = false; ␊
419 getBoolForKey(kIsServer, &Platform->CPU.isServer, &bootInfo->bootConfig); // set this as soon as possible␊
420␉␊
421 if (getBoolForKey(kQuietBootKey, &quiet, &bootInfo->bootConfig) && quiet) {␊
422 gBootMode |= kBootModeQuiet;␊
423 }␊
424␉␊
425 // Override firstRun to get to the boot menu instantly by setting "Instant Menu"=y in system config␊
426 if (getBoolForKey(kInsantMenuKey, &instantMenu, &bootInfo->bootConfig) && instantMenu) {␊
427 firstRun = false;␊
428 }␊
429␉␊
430#ifndef OPTION_ROM␊
431␉// Enable touching a single BIOS device only if "Scan Single Drive"=y is set in system config.␊
432 if (getBoolForKey(kScanSingleDriveKey, &gScanSingleDrive, &bootInfo->bootConfig) && gScanSingleDrive) {␊
433 gScanSingleDrive = true;␊
434 }␊
435␉␊
436␉// Create a list of partitions on device(s).␊
437 if (gScanSingleDrive)␊
438␉{␊
439␉␉scanBootVolumes(gBIOSDev, &bvCount);␊
440 } ␊
441␉else ␊
442#endif␊
443␉{␊
444#if UNUSED␊
445 scanDisks(gBIOSDev, &bvCount);␊
446#else␊
447 scanDisks();␊
448#endif␊
449 }␊
450␉␊
451␉// Create a separated bvr chain using the specified filters.␊
452 bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);␊
453␉gBootVolume = selectBootVolume(bvChain);␊
454␉␊
455␉// Intialize module system␊
456␉EFI_STATUS sysinit = init_module_system();␊
457␉if((sysinit == EFI_SUCCESS) || (sysinit == EFI_ALREADY_STARTED)/*should never happen*/ ) ␊
458␉{␊
459␉␉load_all_modules();␊
460␉}␊
461␉␉␉␊
462 // Loading preboot ramdisk if exists.␊
463␉execute_hook("loadPrebootRAMDisk", NULL, NULL, NULL, NULL, NULL, NULL);␉␉␊
464␊
465#ifndef OPTION_ROM␊
466␊
467 // Disable rescan option by default␊
468 gEnableCDROMRescan = false;␊
469␉␊
470 // Enable it with Rescan=y in system config␊
471 if (getBoolForKey(kRescanKey, &gEnableCDROMRescan, &bootInfo->bootConfig) && gEnableCDROMRescan) {␊
472 gEnableCDROMRescan = true;␊
473 }␊
474␉␊
475 // Ask the user for Rescan option by setting "Rescan Prompt"=y in system config.␊
476 rescanPrompt = false;␊
477 if (getBoolForKey(kRescanPromptKey, &rescanPrompt , &bootInfo->bootConfig) && rescanPrompt && biosDevIsCDROM(gBIOSDev)) {␊
478 gEnableCDROMRescan = promptForRescanOption();␊
479 }␊
480#endif␉␊
481␉␊
482#if DEBUG␊
483 printf(" Default: %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBootVolume, gBootVolume->biosdev, gBootVolume->part_no, gBootVolume->flags);␊
484 printf(" bt(0,0): %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBIOSBootVolume, gBIOSBootVolume->biosdev, gBIOSBootVolume->part_no, gBIOSBootVolume->flags);␊
485 getc();␊
486#endif␊
487␉␉␉␊
488 setBootGlobals(bvChain);␊
489␉␊
490␉// Display the GUI␊
491␉execute_hook("GUI_Display", NULL, NULL, NULL, NULL, NULL, NULL);␊
492␊
493 // Parse args, load and start kernel.␊
494 while (1) {␊
495 const char *val;␊
496 int len;␊
497 int trycache = 0;␊
498 long flags, cachetime, kerneltime, exttime;␊
499#ifdef BOOT_HELPER_SUPPORT␉␉␊
500␉␉long time;␊
501#endif␊
502 int ret = -1;␊
503 void *binary = (void *)kLoadAddr;␊
504 ␉␉␊
505 // additional variable for testing alternate kernel image locations on boot helper partitions.␊
506 char bootFileSpec[512];␊
507␉␉␊
508 // Initialize globals.␊
509␉␉␊
510 sysConfigValid = false;␊
511 gErrors = false;␊
512␉␉␊
513 status = getBootOptions(firstRun);␊
514 firstRun = false;␊
515 if (status == -1) continue;␊
516␉␉␊
517 status = processBootOptions();␊
518 // Status==1 means to chainboot␊
519 if ( status == 1 ) break;␊
520 // Status==-1 means that the config file couldn't be loaded or that gBootVolume is NULL␊
521 if ( status == -1 )␊
522 {␊
523␉␉␉// gBootVolume == NULL usually means the user hit escape.␊
524␉␉␉if(gBootVolume == NULL)␊
525␉␉␉{␊
526␉␉␉␉freeFilteredBVChain(bvChain);␊
527#ifndef OPTION_ROM␊
528␉␉␉␉if (gEnableCDROMRescan)␊
529␉␉␉␉␉rescanBIOSDevice(gBIOSDev);␊
530#endif␊
531␉␉␉␉␊
532␉␉␉␉bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);␊
533␉␉␉␉setBootGlobals(bvChain);␊
534␉␉␉}␊
535␉␉␉continue;␊
536 }␊
537␉␉␉␉␉␉␊
538 // Other status (e.g. 0) means that we should proceed with boot.␊
539␉␉execute_hook("GUI_PreBoot", NULL, NULL, NULL, NULL, NULL, NULL);␊
540␉␉␊
541␉␉// Find out which version mac os we're booting.␊
542␉␉getOSVersion(gMacOSVersion);␊
543␉␉␊
544␉␉//if (platformCPUFeature(CPU_FEATURE_EM64T)) { ␊
545 if (cpu_mode_is64bit()) {␊
546␉␉␉archCpuType = CPU_TYPE_X86_64;␊
547␉␉} else {␊
548␉␉␉archCpuType = CPU_TYPE_I386;␊
549␉␉}␊
550␉␉if (getValueForKey(karch, &val, &len, &bootInfo->bootConfig)) {␊
551␉␉␉if (strncmp(val, "i386", 4) == 0) {␊
552␉␉␉␉archCpuType = CPU_TYPE_I386;␊
553␉␉␉}␊
554␉␉}␊
555␉␉␊
556␉␉getRootDevice();␊
557␊
558␉␉// Notify to all modules that we are attempting to boot␊
559␉␉execute_hook("PreBoot", NULL, NULL, NULL, NULL, NULL, NULL); ␊
560␉␉␊
561␉␉if (execute_hook("getProductNamePatched", NULL, NULL, NULL, NULL, NULL, NULL) != EFI_SUCCESS)␉␉␉␉␉␊
562␉␉␉readSMBIOS(thePlatformName); // read smbios Platform Name␊
563␉␉␊
564␉␉␊
565␉␉if (!getValueForBootKey(bootArgs->CommandLine, kIgnorePrelinkKern, &val, &len)) {␉␉␊
566 ␉␉␊
567␉␉␉if(gMacOSVersion[3] == '7'){␉␉␉␉␉␊
568␉␉␉␉␉␉sprintf(gBootKernelCacheFile, "%s", kDefaultCachePath);␊
569␉␉␉␉}␊
570␉␉␉␉else if(gMacOSVersion[3] <= '6')␊
571␉␉␉␉{␉␉␉ ␊
572␊
573␉␉␉␉␉␉PlatformInfo *platformInfo = malloc(sizeof(PlatformInfo));␊
574␉␉␉␉␉␉if (platformInfo) {␊
575␉␉␉␉␉␉␉␊
576␉␉␉␉␉␉␉bzero(platformInfo, sizeof(PlatformInfo));␊
577␉␉␉␉␉␉␉␊
578␉␉␉␉␉␉␉if (gPlatformName)␊
579␉␉␉␉␉␉␉␉strlcpy(platformInfo->platformName,gPlatformName, sizeof(platformInfo->platformName)+1);␊
580␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉␊
581␉␉␉␉␉␉␉if (gRootDevice) {␊
582␉␉␉␉␉␉␉␉char *rootPath_p = platformInfo->rootPath;␊
583 int len = strlen(gRootDevice) + 1;␊
584 if ((unsigned)len > sizeof(platformInfo->rootPath)) {␊
585 len = sizeof(platformInfo->rootPath);␊
586 }␊
587␉␉␉␉␉␉␉␉memcpy(rootPath_p, gRootDevice,len);␊
588 ␊
589␉␉␉␉␉␉␉␉rootPath_p += len;␊
590 ␊
591 len = strlen(bootInfo->bootFile);␊
592 ␊
593 if ((unsigned)(rootPath_p - platformInfo->rootPath + len) >=␊
594 sizeof(platformInfo->rootPath)) {␊
595 ␊
596 len = sizeof(platformInfo->rootPath) -␊
597 (rootPath_p - platformInfo->rootPath);␊
598 } ␊
599␉␉␉␉␉␉␉␉memcpy(rootPath_p, bootInfo->bootFile, len);␉␉␉␉␉␉␉␊
600␉␉␉␉␉␉␉␉␊
601␉␉␉␉␉␉␉}␉␊
602␉␉␉␉␉␉␉␊
603␉␉␉␉␉␉␉if (!platformInfo->platformName[0] || !platformInfo->rootPath[0]) {␊
604␉␉␉␉␉␉␉␉platformInfo->platformName[0] = platformInfo->rootPath[0] = 0;␊
605␉␉␉␉␉␉␉}␊
606␉␉␉␉␉␉␉//memcpy(gRootPath,platformInfo->rootPath, sizeof(platformInfo->rootPath));␊
607␊
608␉␉␉␉␉␉␉␊
609␉␉␉␉␉␉␉bootInfo->adler32 = OSSwapHostToBigInt32(local_adler32((unsigned char *)platformInfo, sizeof(*platformInfo)));␊
610␉␉␉␉␉␉␉␊
611␉␉␉␉␉␉␉free(platformInfo);␉␊
612␉␉␉␉␉␉}␊
613␊
614␉␉␉␉␉DBG("Adler32: %08lX\n",bootInfo->adler32);␊
615␉␉␉␉␊
616␉␉␉␉␉if (gMacOSVersion[3] < '6') {␊
617␉␉␉␉␉␉sprintf(gBootKernelCacheFile, "%s.%08lX", "/System/Library/Caches/com.apple.kernelcaches/kernelcache",bootInfo->adler32);␊
618␉␉␉␉␉␉ret = GetFileInfo(NULL, gBootKernelCacheFile, &flags, &cachetime);␊
619␉␉␉␉␉␉if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)) {␊
620␉␉␉␉␉␉␉bootInfo->adler32 = 0;␊
621␉␉␉␉␉␉␉sprintf(gBootKernelCacheFile, "%s", "/System/Library/Caches/com.apple.kernelcaches/kernelcache"); ␊
622␉␉␉␉␉␉}␉␉␉␉␉␉␊
623␉␉␉␉␉} else␊
624␉␉␉␉␉␉sprintf(gBootKernelCacheFile, "%s_%s.%08lX", kDefaultCachePath, (archCpuType == CPU_TYPE_I386) ? "i386" : "x86_64", bootInfo->adler32); //Snow Leopard␊
625␉␉␉␉␉␉␉␉␊
626␉␉␉␉␉␉␉␉␊
627␉␉␉␉}␉␉␉␉␉␊
628 ␊
629␉␉}␊
630␉␉␊
631␉␉// Check for cache file.␊
632␉␉trycache = (((gBootMode & kBootModeSafe) == 0) &&␊
633␉␉␉␉␉!gOverrideKernel &&␊
634␉␉␉␉␉(gBootFileType == kBlockDeviceType) &&␊
635␉␉␉␉␉(gMKextName[0] == '\0') &&␊
636␉␉␉␉␉(gBootKernelCacheFile[0] != '\0'));␊
637␉␉␊
638␉␉verbose("Loading Darwin %s\n", gMacOSVersion);␊
639␉␉␊
640 if (trycache ) do {␊
641␉␉␉␊
642 // if we haven't found the kernel yet, don't use the cache␊
643 ret = GetFileInfo(NULL, bootInfo->bootFile, &flags, &kerneltime);␊
644 if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)) {␊
645 trycache = 0;␊
646␉␉␉␉bootInfo->adler32 = 0;␊
647 break;␊
648 }␊
649 ret = GetFileInfo(NULL, gBootKernelCacheFile, &flags, &cachetime);␊
650 if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)␊
651 || (cachetime < kerneltime)) {␊
652␉␉␉␉trycache = 0;␊
653␉␉␉␉bootInfo->adler32 = 0;␊
654␉␉␉␉break;␉␉␉␉ ␊
655 } ␊
656 ret = GetFileInfo("/System/Library/", "Extensions", &flags, &exttime);␊
657 if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeDirectory)␊
658 && (cachetime < exttime)) {␊
659 trycache = 0;␊
660␉␉␉␉bootInfo->adler32 = 0;␊
661 break;␊
662 }␊
663 if (kerneltime > exttime) {␊
664 exttime = kerneltime;␊
665 }␊
666 if (cachetime != (exttime + 1)) {␊
667 trycache = 0;␊
668␉␉␉␉bootInfo->adler32 = 0;␊
669 break;␊
670 }␊
671 } while (0);␊
672␉␉␊
673 do {␊
674 if (trycache) {␊
675 bootFile = gBootKernelCacheFile;␊
676 verbose("Loading kernel cache %s\n", bootFile);␊
677␉␉␉␉if (gMacOSVersion[3] == '7') {␉␉␉␉␉␊
678␉␉␉␉␉ret = LoadThinFatFile(bootFile, &binary);␊
679␉␉␉␉␉if (ret <= 0 && archCpuType == CPU_TYPE_X86_64)␊
680␉␉␉␉␉{␊
681␉␉␉␉␉␉archCpuType = CPU_TYPE_I386;␊
682␉␉␉␉␉␉ret = LoadThinFatFile(bootFile, &binary);␉␉␉␉␊
683␉␉␉␉␉}␊
684␉␉␉␉} else {␊
685␉␉␉␉␉ret = LoadFile(bootFile);␊
686␉␉␉␉␉binary = (void *)kLoadAddr;␊
687␉␉␉␉}␊
688␉␉␉␉␊
689 if (ret >= 0) {␊
690 break;␊
691 }␊
692␉␉␉␉␊
693 }␊
694␉␉␉bootInfo->adler32 = 0;␊
695 bootFile = bootInfo->bootFile;␊
696#ifdef BOOT_HELPER_SUPPORT␊
697␉␉␉␊
698 // Try to load kernel image from alternate locations on boot helper partitions.␊
699 sprintf(bootFileSpec, "com.apple.boot.P/%s", bootFile);␊
700 ret = GetFileInfo(NULL, bootFileSpec, &flags, &time); ␊
701 ␉ ␉ if (ret == -1)␊
702 ␉ ␉ {␊
703␉␉␉␉sprintf(bootFileSpec, "com.apple.boot.R/%s", bootFile);␊
704␉␉␉␉ret = GetFileInfo(NULL, bootFileSpec, &flags, &time); ␊
705␉␉␉␉if (ret == -1)␊
706␉␉␉␉{␊
707␉␉␉␉␉sprintf(bootFileSpec, "com.apple.boot.S/%s", bootFile);␊
708␉␉␉␉␉ret = GetFileInfo(NULL, bootFileSpec, &flags, &time); ␊
709␉␉␉␉␉if (ret == -1)␊
710␉␉␉␉␉{␊
711␉␉␉␉␉␉// Not found any alternate locations, using the original kernel image path.␊
712␉␉␉␉␉␉strcpy(bootFileSpec, bootFile);␊
713␉␉␉␉␉}␊
714␉␉␉␉}␊
715 }␊
716#else␊
717␉␉␉strcpy(bootFileSpec, bootFile);␊
718#endif␊
719␉␉␉␊
720 verbose("Loading kernel %s\n", bootFileSpec);␊
721 ret = LoadThinFatFile(bootFileSpec, &binary);␊
722 if (ret <= 0 && archCpuType == CPU_TYPE_X86_64)␊
723 {␊
724␉␉␉␉archCpuType = CPU_TYPE_I386;␊
725␉␉␉␉ret = LoadThinFatFile(bootFileSpec, &binary);␉␉␉␉␊
726 }␊
727␉␉␉␊
728 } while (0);␊
729#if TEXT_SPINNER␊
730 clearActivityIndicator();␊
731#endif␊
732␉␉␊
733#if DEBUG␊
734 printf("Pausing...");␊
735 sleep(8);␊
736#endif␊
737␉␉␊
738 if (ret <= 0) {␊
739␉␉␉printf("Can't find %s\n", bootFile);␊
740␉␉␉␊
741␉␉␉sleep(1);␊
742#ifdef NBP_SUPPORT␊
743 if (gBootFileType == kNetworkDeviceType) {␊
744 // Return control back to PXE. Don't unload PXE base code.␊
745 gUnloadPXEOnExit = false;␊
746 break;␊
747 }␊
748#endif␊
749 } else {␊
750 /* Won't return if successful. */␊
751 ret = ExecKernel(binary);␊
752 }␊
753 }␊
754 ␊
755 // chainboot␊
756 if (status==1) {␊
757␉␉if (getVideoMode() == GRAPHICS_MODE) {␉// if we are already in graphics-mode,␊
758#if UNUSED␊
759␉␉␉setVideoMode(VGA_TEXT_MODE, 0);␉// switch back to text mode␊
760#else␊
761␉␉␉setVideoMode(VGA_TEXT_MODE);␉// switch back to text mode␊
762#endif␊
763␉␉}␊
764 }␊
765#ifdef NBP_SUPPORT␊
766 if ((gBootFileType == kNetworkDeviceType) && gUnloadPXEOnExit) {␊
767␉␉nbpUnloadBaseCode();␊
768 }␊
769#endif␊
770}␊
771␊
772// Maximum config table value size␊
773#define VALUE_SIZE 2048␊
774static void getRootDevice()␊
775{␊
776␉const char *val = 0;␊
777 int cnt = 0;␊
778␉␊
779␉if (getValueForKey(kBootUUIDKey, &val, &cnt, &bootInfo->bootConfig)){␊
780␉␉uuidSet = true;␉␉␊
781␉␉␊
782 } else {␊
783␉␉if (getValueForBootKey(bootArgs->CommandLine, kRootDeviceKey, &val, &cnt)) {␊
784␉␉␉if (*val == '*' && *(val + 1) != '/' && *(val + 1) != 'u') { ␊
785␉␉␉␉val += 1; //skip the *␊
786␉␉␉␉uuidSet = true;␉␉␉␉␊
787␉␉␉␉␊
788␉␉␉} else if (*val == '*' && *(val + 1) == 'u') {␊
789␉␉␉␉␊
790␉␉␉␉if ( getValueForKey( kBootDeviceKey, &val, &cnt, &bootInfo->bootConfig)) ␊
791␉␉␉␉␉uuidSet = true;␉␉␉␉␊
792␉␉␉␉␊
793␉␉␉} ␉␉␉␊
794␉␉} else {␊
795#ifdef BOOT_HELPER_SUPPORT␊
796␉␉␉//␊
797␉␉␉// Try an alternate method for getting the root UUID on boot helper partitions.␊
798␉␉␉//␊
799␉␉␉if (gBootVolume->flags & kBVFlagBooter)␊
800␉␉␉{␊
801␉␉␉␉if((loadHelperConfig(&bootInfo->helperConfig) == 0)␊
802␉␉␉␉ && getValueForKey(kHelperRootUUIDKey, &val, &cnt, &bootInfo->helperConfig) )␊
803␉␉␉␉{␊
804␉␉␉␉␉getValueForKey(kHelperRootUUIDKey, &val, &cnt, &bootInfo->helperConfig);␊
805␉␉␉␉␉uuidSet = true;␊
806␉␉␉␉␉goto out;␊
807␉␉␉␉}␊
808␉␉␉}␊
809#endif␊
810␉␉␉␊
811␉␉␉if ( getValueForKey( kBootDeviceKey, &val, &cnt, &bootInfo->bootConfig)) {␊
812␉␉␉␉extern int ArgCntRemaining;␊
813␉␉␉␉uuidSet = false;␊
814␉␉␉␉char * valueBuffer;␊
815␉␉␉␉valueBuffer = malloc(VALUE_SIZE);␊
816␉␉␉␉char * argP = bootArgs->CommandLine;␊
817␉␉␉␉valueBuffer[0] = '*';␊
818␉␉␉␉cnt++;␊
819␉␉␉␉strlcpy(valueBuffer + 1, val, cnt);␉␉␉␉␊
820␉␉␉␉if (!copyArgument( kRootDeviceKey, valueBuffer, cnt, &argP, &ArgCntRemaining))␊
821␉␉␉␉{␊
822␉␉␉␉␉free(valueBuffer);␊
823␉␉␉␉␉printf("Error: boot arguments too long, unable to set root device !!");␊
824␉␉␉␉␉getc();␊
825␉␉␉␉␉return;␊
826␉␉␉␉}␊
827␉␉␉␉free(valueBuffer);␊
828␉␉␉␉goto out;␊
829␉␉␉}␊
830␉␉␉␊
831␉␉␉if (gBootVolume->fs_getuuid && gBootVolume->fs_getuuid (gBootVolume, bootInfo->uuidStr) == 0) {␊
832␉␉␉␉verbose("Setting boot-uuid to: %s\n", bootInfo->uuidStr);␊
833␉␉␉␉uuidSet = true;␊
834␉␉␉␉gRootDevice = bootInfo->uuidStr;␊
835␉␉␉␉return;␊
836␉␉␉}␊
837␉␉␊
838␉␉}␉␊
839␉}␊
840␉␉␊
841out:␉␊
842␉verbose("Setting %s to: %s\n", uuidSet ? kBootUUIDKey : "root device", (char* )val); ␊
843␉gRootDevice = (char* )val;␊
844}␊
845␊
846static bool getOSVersion(char *str)␊
847{␊
848␉bool valid = false;␊
849␉config_file_t systemVersion;␊
850␉const char *val;␊
851␉int len;␊
852␉␊
853␉if (!loadConfigFile("System/Library/CoreServices/SystemVersion.plist", &systemVersion))␊
854␉{␊
855␉␉valid = true;␊
856␉}␊
857␉else if (!loadConfigFile("System/Library/CoreServices/ServerVersion.plist", &systemVersion))␊
858␉{␊
859␉␉valid = true;␊
860␉}␊
861␉␊
862␉if (valid)␊
863␉{␊
864␉␉if (getValueForKey(kProductVersion, &val, &len, &systemVersion))␊
865␉␉{␊
866␉␉␉// getValueForKey uses const char for val␊
867␉␉␉// so copy it and trim␊
868␉␉␉*str = '\0';␊
869␉␉␉strncat(str, val, MIN(len, 4));␊
870␉␉}␊
871␉␉else␊
872␉␉␉valid = false;␊
873␉}␊
874␉␊
875␉return valid;␊
876}␊
877␊
878unsigned long␊
879local_adler32( unsigned char * buffer, long length )␊
880{␊
881 long cnt;␊
882 unsigned long result, lowHalf, highHalf;␊
883 ␊
884 lowHalf = 1;␊
885 highHalf = 0;␊
886␉␊
887␉for ( cnt = 0; cnt < length; cnt++ )␊
888 {␊
889 if ((cnt % 5000) == 0)␊
890 {␊
891 lowHalf %= 65521L;␊
892 highHalf %= 65521L;␊
893 }␊
894␉␉␊
895 lowHalf += buffer[cnt];␊
896 highHalf += lowHalf;␊
897 }␊
898␉␊
899␉lowHalf %= 65521L;␊
900␉highHalf %= 65521L;␊
901␉␊
902␉result = (highHalf << 16) | lowHalf;␊
903␉␊
904␉return result;␊
905}␊
906

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