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

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