//==========================================================================
// The 'main' function for the booter. Called by boot0 when booting
// from a block device, or by the network booter.
//
// arguments:
// biosdev - Value passed from boot1/NBP to specify the device
// that the booter was loaded from.
//
// If biosdev is kBIOSDevNetwork, then this function will return if
// booting was unsuccessful. This allows the PXE firmware to try the
// next boot device on its list.
void common_boot(int biosdev)
{
int status;
char *bootFile;
unsigned long adler32;
bool quiet;
bool firstRun = true;
bool instantMenu;
bool rescanPrompt;
unsigned int allowBVFlags = kBVFlagSystemVolume|kBVFlagForeignBoot;
unsigned int denyBVFlags = kBVFlagEFISystem;
// Set reminder to unload the PXE base code. Neglect to unload
// the base code will result in a hang or kernel panic.
gUnloadPXEOnExit = true;
// Record the device that the booter was loaded from.
gBIOSDev = biosdev & kBIOSDevMask;
// Initialize boot info structure.
initKernBootStruct();
// Setup VGA text mode.
// Not sure if it is safe to call setVideoMode() before the
// config table has been loaded. Call video_mode() instead.
#if DEBUG
printf("before video_mode\n");
#endif
video_mode( 2 ); // 80x25 mono text mode.
#if DEBUG
printf("after video_mode\n");
#endif
// Scan and record the system's hardware information.
scan_platform();
// First get info for boot volume.
scanBootVolumes(gBIOSDev, 0);
bvChain = getBVChainForBIOSDev(gBIOSDev);
setBootGlobals(bvChain);
// Load boot.plist config file
status = loadSystemConfig(&bootInfo->bootConfig);
if (getBoolForKey(kQuietBootKey, &quiet, &bootInfo->bootConfig) && quiet) {
gBootMode |= kBootModeQuiet;
}
// Override firstRun to get to the boot menu instantly by setting "Instant Menu"=y in system config
if (getBoolForKey(kInsantMenuKey, &instantMenu, &bootInfo->bootConfig) && instantMenu) {
firstRun = false;
}
// Loading preboot ramdisk if exists.
loadPrebootRAMDisk();
// Disable rescan option by default
gEnableCDROMRescan = false;
// Enable it with Rescan=y in system config
if (getBoolForKey(kRescanKey, &gEnableCDROMRescan, &bootInfo->bootConfig) && gEnableCDROMRescan) {
gEnableCDROMRescan = true;
}
// Ask the user for Rescan option by setting "Rescan Prompt"=y in system config.
rescanPrompt = false;
if (getBoolForKey(kRescanPromptKey, &rescanPrompt , &bootInfo->bootConfig) && rescanPrompt && biosDevIsCDROM(gBIOSDev)) {
gEnableCDROMRescan = promptForRescanOption();
}
// Enable touching a single BIOS device only if "Scan Single Drive"=y is set in system config.
if (getBoolForKey(kScanSingleDriveKey, &gScanSingleDrive, &bootInfo->bootConfig) && gScanSingleDrive) {
gScanSingleDrive = true;
}
// Create a list of partitions on device(s).
if (gScanSingleDrive) {
scanBootVolumes(gBIOSDev, &bvCount);
} else {
scanDisks(gBIOSDev, &bvCount);
}
// Create a separated bvr chain using the specified filters.
bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);
gBootVolume = selectBootVolume(bvChain);
#if DEBUG
printf(" Default: %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBootVolume, gBootVolume->biosdev, gBootVolume->part_no, gBootVolume->flags);
printf(" bt(0,0): %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBIOSBootVolume, gBIOSBootVolume->biosdev, gBIOSBootVolume->part_no, gBIOSBootVolume->flags);
getc();
#endif
useGUI = TRUE;
// Override useGUI default
getBoolForKey(kGUIKey, &useGUI, &bootInfo->bootConfig);
// Before initGui, patch the video bios with the correct resolution
UInt32 params[4];
int count;
params[3] = 0;
autoResolution = TRUE;
// Override AutoResolution default
getBoolForKey(kAutoResolutionKey, &autoResolution, &bootInfo->bootConfig);
vbios_map * map = open_vbios(CT_UNKWN);
//Saving the bios in case we have to unpatch it
save_vbios(map);
if (autoResolution == TRUE) {
//Get Resolution from Graphics Mode key
count = getNumberArrayFromProperty(kGraphicsModeKey, params, 4);
if ( count < 3 ){
//If no Graphics Mode key, get from EDID
getResolution(¶ms[0], ¶ms[1], ¶ms[2]);
verbose("EDID Resolution: %dx%d\n",params[0], params[1]);
}
} else {
if ( params[2] == 256 ) params[2] = 8;
if ( params[2] == 555 ) params[2] = 16;
if ( params[2] == 888 ) params[2] = 32;
}
if (params[0]!=0 && params[1]!=0) {
unlock_vbios(map);
patch_vbios(map, params[0], params[1], params[2], 0, 0);
relock_vbios(map);
#if AUTORES_DEBUG
printf("Press Any Key...\n");
getc();
#endif
}
if (useGUI) {
/* XXX AsereBLN handle error */
initGUI();
}
setBootGlobals(bvChain);
// Parse args, load and start kernel.
while (1) {
const char *val;
int len;
int trycache;
long flags, cachetime, kerneltime, exttime, sleeptime, time;
int ret = -1;
void *binary = (void *)kLoadAddr;
bool tryresume;
bool tryresumedefault;
bool forceresume;
config_file_t systemVersion; // system.plist of booting partition
// additional variable for testing alternate kernel image locations on boot helper partitions.
char bootFileSpec[512];
// Initialize globals.
sysConfigValid = false;
gErrors = false;
status = getBootOptions(firstRun);
firstRun = false;
if (status == -1) continue;
status = processBootOptions();
// Status==1 means to chainboot
if ( status == 1 ) break;
// Status==-1 means that the config file couldn't be loaded or that gBootVolume is NULL
if ( status == -1 )
{
// gBootVolume == NULL usually means the user hit escape.
if(gBootVolume == NULL)
{
freeFilteredBVChain(bvChain);
if (gEnableCDROMRescan)
rescanBIOSDevice(gBIOSDev);
bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);
setBootGlobals(bvChain);
}
continue;
}
// Other status (e.g. 0) means that we should proceed with boot.
if( bootArgs->Video.v_display == GRAPHICS_MODE )
drawBackground();
// Found and loaded a config file. Proceed with boot.
// Turn off any GUI elements
if( bootArgs->Video.v_display == GRAPHICS_MODE )
{
gui.devicelist.draw = false;
gui.bootprompt.draw = false;
gui.menu.draw = false;
gui.infobox.draw = false;
drawBackground();
updateVRAM();
}
/*
* AutoResolution - Reapply the patch or cancel if Graphics Mode was incorrect
* or EDID Info was insane
*/
getBoolForKey(kAutoResolutionKey, &autoResolution, &bootInfo->bootConfig);
//Restore the vbios for Cancelation
if ((autoResolution == FALSE) && map) {
unlock_vbios(map);
restore_vbios(map);
relock_vbios(map);
close_vbios(map);
}
if ((autoResolution == TRUE) && map) {
//Reapply patch in case resolution have changed
count = getNumberArrayFromProperty(kGraphicsModeKey, params, 4);
if ( count < 3 ) {
getResolution(¶ms[0], ¶ms[1], ¶ms[2]);
}
else
{
if ( params[2] == 256 ) params[2] = 8;
if ( params[2] == 555 ) params[2] = 16;
if ( params[2] == 888 ) params[2] = 32;
}
if (params[0]!=0 && params[1]!=0) {
unlock_vbios(map);
patch_vbios(map, params[0], params[1], params[2], 0, 0);
relock_vbios(map);
close_vbios(map);
}
}
// Find out which version mac os we're booting.
if (!loadConfigFile("System/Library/CoreServices/SystemVersion.plist", &systemVersion)) {
if (getValueForKey(kProductVersion, &val, &len, &systemVersion)) {
// getValueForKey uses const char for val
// so copy it and trim
strncpy(gMacOSVersion, val, MIN(len, 4));
gMacOSVersion[MIN(len, 4)] = '\0';
}
}
if (platformCPUFeature(CPU_FEATURE_EM64T)) {
archCpuType = CPU_TYPE_X86_64;
} else {
archCpuType = CPU_TYPE_I386;
}
if (getValueForKey(karch, &val, &len, &bootInfo->bootConfig)) {
if (strncmp(val, "i386", 4) == 0) {
archCpuType = CPU_TYPE_I386;
}
}
if (getValueForKey(k32BitModeFlag, &val, &len, &bootInfo->bootConfig)) {
archCpuType = CPU_TYPE_I386;
}
if (!getBoolForKey (kWake, &tryresume, &bootInfo->bootConfig)) {
tryresume = true;
tryresumedefault = true;
} else {
tryresumedefault = false;
}
if (!getBoolForKey (kForceWake, &forceresume, &bootInfo->bootConfig)) {
forceresume = false;
}
if (forceresume) {
tryresume = true;
tryresumedefault = false;
}
while (tryresume) {
const char *tmp;
BVRef bvr;
if (!getValueForKey(kWakeImage, &val, &len, &bootInfo->bootConfig))
val="/private/var/vm/sleepimage";
// Do this first to be sure that root volume is mounted
ret = GetFileInfo(0, val, &flags, &sleeptime);
if ((bvr = getBootVolumeRef(val, &tmp)) == NULL)
break;
// Can't check if it was hibernation Wake=y is required
if (bvr->modTime == 0 && tryresumedefault)
break;
if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat))
break;
if (!forceresume && ((sleeptime+3)<bvr->modTime)) {
printf ("Hibernate image is too old by %d seconds. Use ForceWake=y to override\n",bvr->modTime-sleeptime);
break;
}
HibernateBoot((char *)val);
break;
}
// Reset cache name.
bzero(gCacheNameAdler + 64, sizeof(gCacheNameAdler) - 64);
sprintf(gCacheNameAdler + 64, "%s,%s", gRootDevice, bootInfo->bootFile);
adler32 = Adler32((unsigned char *)gCacheNameAdler, sizeof(gCacheNameAdler));
if (getValueForKey(kKernelCacheKey, &val, &len, &bootInfo->bootConfig)) {
strlcpy(gBootKernelCacheFile, val, len+1);
} else {
sprintf(gBootKernelCacheFile, "%s.%08lX", kDefaultCachePath, adler32);
}
// Check for cache file.
trycache = (((gBootMode & kBootModeSafe) == 0) &&
!gOverrideKernel &&
(gBootFileType == kBlockDeviceType) &&
(gMKextName[0] == '\0') &&
(gBootKernelCacheFile[0] != '\0'));
verbose("Loading Darwin %s\n", gMacOSVersion);
if (trycache) do {
// if we haven't found the kernel yet, don't use the cache
ret = GetFileInfo(NULL, bootInfo->bootFile, &flags, &kerneltime);
if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)) {
trycache = 0;
break;
}
ret = GetFileInfo(NULL, gBootKernelCacheFile, &flags, &cachetime);
if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)
|| (cachetime < kerneltime)) {
trycache = 0;
break;
}
ret = GetFileInfo("/System/Library/", "Extensions", &flags, &exttime);
if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeDirectory)
&& (cachetime < exttime)) {
trycache = 0;
break;
}
if (kerneltime > exttime) {
exttime = kerneltime;
}
if (cachetime != (exttime + 1)) {
trycache = 0;
break;
}
} while (0);
do {
if (trycache) {
bootFile = gBootKernelCacheFile;
verbose("Loading kernel cache %s\n", bootFile);
ret = LoadFile(bootFile);
binary = (void *)kLoadAddr;
if (ret >= 0) {
break;
}
}
bootFile = bootInfo->bootFile;
// Try to load kernel image from alternate locations on boot helper partitions.
sprintf(bootFileSpec, "com.apple.boot.P/%s", bootFile);
ret = GetFileInfo(NULL, bootFileSpec, &flags, &time);
if (ret == -1)
{
sprintf(bootFileSpec, "com.apple.boot.R/%s", bootFile);
ret = GetFileInfo(NULL, bootFileSpec, &flags, &time);
if (ret == -1)
{
sprintf(bootFileSpec, "com.apple.boot.S/%s", bootFile);
ret = GetFileInfo(NULL, bootFileSpec, &flags, &time);
if (ret == -1)
{
// Not found any alternate locations, using the original kernel image path.
strcpy(bootFileSpec, bootFile);
}
}
}
verbose("Loading kernel %s\n", bootFileSpec);
ret = LoadThinFatFile(bootFileSpec, &binary);
if (ret <= 0 && archCpuType == CPU_TYPE_X86_64)
{
archCpuType = CPU_TYPE_I386;
ret = LoadThinFatFile(bootFileSpec, &binary);
}
} while (0);
clearActivityIndicator();
#if DEBUG
printf("Pausing...");
sleep(8);
#endif
if (ret <= 0) {
printf("Can't find %s\n", bootFile);
if(gui.initialised) {
sleep(1);
drawBackground();
gui.devicelist.draw = true;
gui.redraw = true;
}
if (gBootFileType == kNetworkDeviceType) {
// Return control back to PXE. Don't unload PXE base code.
gUnloadPXEOnExit = false;
break;
}
} else {
/* Won't return if successful. */
ret = ExecKernel(binary);
}
}
// chainboot
if (status==1) {
if (getVideoMode() == GRAPHICS_MODE) { // if we are already in graphics-mode,
setVideoMode(VGA_TEXT_MODE, 0); // switch back to text mode
}
}
if ((gBootFileType == kNetworkDeviceType) && gUnloadPXEOnExit) {
nbpUnloadBaseCode();
}
}
void boot(int biosdev)
{
int status;
char *bootFile;
unsigned long adler32;
BOOL quiet;
BOOL firstRun = YES;
BVRef bvChain;
zeroBSS();
// Initialize malloc
malloc_init(0, 0, 0, malloc_error);
// Enable A20 gate before accessing memory above 1Mb.
enableA20();
// Set reminder to unload the PXE base code. Neglect to unload
// the base code will result in a hang or kernel panic.
gUnloadPXEOnExit = 1;
// Record the device that the booter was loaded from.
gBIOSDev = biosdev & kBIOSDevMask;
// Initialize boot info structure.
initKernBootStruct( gBIOSDev );
// Setup VGA text mode.
// Not sure if it is safe to call setVideoMode() before the
// config table has been loaded. Call video_mode() instead.
video_mode( 2 ); // 80x25 mono text mode.
// Scan hardware configuration.
scanHardware();
// First get info for boot volume.
bvChain = scanBootVolumes(gBIOSDev, 0);
// Record default boot device.
gBootVolume = selectBootVolume(bvChain);
bootArgs->kernDev = MAKEKERNDEV(gBIOSDev,
BIOS_DEV_UNIT(gBootVolume),
gBootVolume->part_no );
// Load default config file from boot device.
status = loadSystemConfig(0, 0);
if ( getBoolForKey( kQuietBootKey, &quiet ) && quiet ) {
gBootMode |= kBootModeQuiet;
}
// Parse args, load and start kernel.
while (1)
{
const char *val;
int len;
int trycache;
long flags, cachetime, kerneltime, exttime;
int ret = -1;
// Initialize globals.
sysConfigValid = 0;
gErrors = 0;
status = getBootOptions(firstRun);
firstRun = NO;
if (status == -1) continue;
status = processBootOptions();
if ( status == 1 ) break;
if ( status == -1 ) continue;
// Found and loaded a config file. Proceed with boot.
// Reset cache name.
bzero(gCacheNameAdler, sizeof(gCacheNameAdler));
if ( getValueForKey( kRootDeviceKey, &val, &len ) == YES ) {
if (*val == '*') {
val++;
len--;
}
strncpy( gCacheNameAdler + 64, val, len );
sprintf(gCacheNameAdler + 64 + len, ",%s", bootArgs->bootFile);
} else {
strcpy(gCacheNameAdler + 64, bootArgs->bootFile);
}
adler32 = Adler32(gCacheNameAdler, sizeof(gCacheNameAdler));
if (getValueForKey(kKernelCacheKey, &val, &len) == YES) {
strlcpy(gBootKernelCacheFile, val, len+1);
} else {
sprintf(gBootKernelCacheFile, "%s.%08lX", kDefaultCachePath, adler32);
}
// Check for cache file.
trycache = (((gBootMode & kBootModeSafe) == 0) &&
(gOverrideKernel == NO) &&
(gBootFileType == kBlockDeviceType) &&
(gMKextName[0] == '\0') &&
(gBootKernelCacheFile[0] != '\0'));
printf("Loading Darwin/x86\n");
if (trycache) do {
// if we haven't found the kernel yet, don't use the cache
ret = GetFileInfo(NULL, bootArgs->bootFile, &flags, &kerneltime);
if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)) {
trycache = 0;
break;
}
ret = GetFileInfo(NULL, gBootKernelCacheFile, &flags, &cachetime);
if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)
|| (cachetime < kerneltime)) {
trycache = 0;
break;
}
ret = GetFileInfo("/System/Library/", "Extensions", &flags, &exttime);
if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeDirectory)
&& (cachetime < exttime)) {
trycache = 0;
break;
}
if (kerneltime > exttime) {
exttime = kerneltime;
}
if (cachetime != (exttime + 1)) {
trycache = 0;
break;
}
} while (0);
do {
if (trycache) {
bootFile = gBootKernelCacheFile;
verbose("Loading kernel cache %s\n", bootFile);
ret = LoadFile(bootFile);
if (ret >= 0) {
break;
}
}
bootFile = bootArgs->bootFile;
verbose("Loading kernel %s\n", bootFile);
ret = LoadFile(bootFile);
} while (0);
clearActivityIndicator();
#if DEBUG
printf("Pausing...");
sleep(8);
#endif
if (ret < 0) {
error("Can't find %s\n", bootFile);
if ( gBootFileType == kBIOSDevTypeFloppy )
{
// floppy in drive, but failed to load kernel.
gBIOSDev = kBIOSDevTypeHardDrive;
initKernBootStruct( gBIOSDev );
printf("Attempting to load from hard drive...");
}
else if ( gBootFileType == kNetworkDeviceType )
{
// Return control back to PXE. Don't unload PXE base code.
gUnloadPXEOnExit = 0;
break;
}
} else {
/* Won't return if successful. */
ret = ExecKernel((void *)kLoadAddr);
}
} /* while(1) */
if ((gBootFileType == kNetworkDeviceType) && gUnloadPXEOnExit) {
nbpUnloadBaseCode();
}
}
int
processBootOptions()
{
const char *cp = gBootArgs;
const char *val = 0;
const char *kernel;
int cnt;
int userCnt;
int cntRemaining;
char *argP;
char *configKernelFlags;
char *valueBuffer;
valueBuffer = malloc(VALUE_SIZE);
skipblanks( &cp );
// Update the unit and partition number.
if ( gBootVolume ) {
if (!( gBootVolume->flags & kBVFlagNativeBoot )) {
readBootSector( gBootVolume->biosdev, gBootVolume->part_boff, (void *) 0x7c00 );
//
// Setup edx, and signal intention to chain load the
// foreign booter.
//
chainbootdev = gBootVolume->biosdev;
chainbootflag = 1;
return 1;
}
setRootVolume(gBootVolume);
}
// If no boot volume fail immediately because we're just going to fail
// trying to load the config file anyway.
else {
return -1;
}
// Find out which version mac os we're booting.
strncpy(gMacOSVersion, gBootVolume->OSVersion, sizeof(gMacOSVersion));
// Load config table specified by the user, or use the default.
if (!getValueForBootKey(cp, "config", &val, &cnt)) {
val = 0;
cnt = 0;
}
// Load com.apple.Boot.plist from the selected volume
// and use its contents to override default bootConfig.
loadSystemConfig(&bootInfo->bootConfig);
loadChameleonConfig(&bootInfo->chameleonConfig, NULL);
// Use the kernel name specified by the user, or fetch the name
// in the config table, or use the default if not specified.
// Specifying a kernel name on the command line, or specifying
// a non-default kernel name in the config file counts as
// overriding the kernel, which causes the kernelcache not
// to be used.
gOverrideKernel = false;
if (( kernel = extractKernelName((char **)&cp) ))
{
strlcpy( bootInfo->bootFile, kernel, sizeof(bootInfo->bootFile) );
}
else
{
if ( getValueForKey( kKernelNameKey, &val, &cnt, &bootInfo->bootConfig ) )
{
strlcpy( bootInfo->bootFile, val, cnt+1 );
}
else
{
if( YOSEMITE ) // is 10.10
{
strlcpy( bootInfo->bootFile, kOSXKernel, sizeof(bootInfo->bootFile) );
//printf(HEADER "/System/Library/Kernels/%s\n", bootInfo->bootFile);
}
else
{ // OSX is not 10.10
strlcpy( bootInfo->bootFile, kDefaultKernel, sizeof(bootInfo->bootFile) );
//printf(HEADER "/%s\n", bootInfo->bootFile);
}
}
}
if (!YOSEMITE) // not 10.10 so 10.9 and previus
{
if (strcmp( bootInfo->bootFile, kDefaultKernel ) != 0)
{
//printf(HEADER "org.chameleon.Boot.plist found path for custom '%s' found!\n", bootInfo->bootFile);
gOverrideKernel = true;
}
}
else
{ // OSX is 10.10
if (strcmp( bootInfo->bootFile, kOSXKernel ) != 0)
{
//printf(HEADER "org.chameleon.Boot.plist found path for custom '%s' found!\n", bootInfo->bootFile);
gOverrideKernel = true;
}
}
// Ermac : Inject "kext-dev-mode=1" if OS X 10.10 is detected
if( YOSEMITE ) // is 10.10
{
addBootArg("kext-dev-mode=1");
}
cntRemaining = BOOT_STRING_LEN - 2; // save 1 for NULL, 1 for space
argP = bootArgs->CommandLine;
// Get config kernel flags, if not ignored.
if (getValueForBootKey(cp, kIgnoreBootFileFlag, &val, &cnt) ||
!getValueForKey( kKernelFlagsKey, &val, &cnt, &bootInfo->bootConfig ))
{
val = "";
cnt = 0;
}
configKernelFlags = malloc(cnt + 1);
strlcpy(configKernelFlags, val, cnt + 1);
// boot-uuid can be set either on the command-line or in the config file
if (!processBootArgument(kBootUUIDKey, cp, configKernelFlags, bootInfo->config,
&argP, &cntRemaining, gBootUUIDString, sizeof(gBootUUIDString)))
{
//
// Try an alternate method for getting the root UUID on boot helper partitions.
//
if (gBootVolume->flags & kBVFlagBooter)
{
// Load the configuration store in the boot helper partition
if (loadHelperConfig(&bootInfo->helperConfig) == 0)
{
val = getStringForKey(kHelperRootUUIDKey, &bootInfo->helperConfig);
if (val != NULL)
{
strlcpy(gBootUUIDString, val, sizeof(gBootUUIDString));
}
}
}
/*
// Try to get the volume uuid string
if (!strlen(gBootUUIDString) && gBootVolume->fs_getuuid)
{
gBootVolume->fs_getuuid(gBootVolume, gBootUUIDString);
}
*/
// If we have the volume uuid add it to the commandline arguments
if (strlen(gBootUUIDString))
{
copyArgument(kBootUUIDKey, gBootUUIDString, strlen(gBootUUIDString), &argP, &cntRemaining);
}
// Try to get the volume uuid string
if (!strlen(gBootUUIDString) && gBootVolume->fs_getuuid)
{
gBootVolume->fs_getuuid(gBootVolume, gBootUUIDString);
DBG("boot-uuid: %s\n", gBootUUIDString);
}
}
if (!processBootArgument(kRootDeviceKey, cp, configKernelFlags, bootInfo->config,
&argP, &cntRemaining, gRootDevice, ROOT_DEVICE_SIZE))
{
cnt = 0;
if ( getValueForKey( kBootDeviceKey, &val, &cnt, &bootInfo->chameleonConfig))
{
valueBuffer[0] = '*';
cnt++;
strlcpy(valueBuffer + 1, val, cnt);
val = valueBuffer;
}
else
{ /*
if (strlen(gBootUUIDString))
{
val = "*uuid";
cnt = 5;
}
else
{ */
// Don't set "rd=.." if there is no boot device key
// and no UUID.
val = "";
cnt = 0;
/* } */
}
if (cnt > 0)
{
copyArgument( kRootDeviceKey, val, cnt, &argP, &cntRemaining);
}
strlcpy( gRootDevice, val, (cnt + 1));
}
/*
* Removed. We don't need this anymore.
*
if (!processBootArgument(kPlatformKey, cp, configKernelFlags, bootInfo->config,
&argP, &cntRemaining, gPlatformName, sizeof(gCacheNameAdler)))
{
getPlatformName(gPlatformName);
copyArgument(kPlatformKey, gPlatformName, strlen(gPlatformName), &argP, &cntRemaining);
}
*/
if (!getValueForBootKey(cp, kSafeModeFlag, &val, &cnt) &&
!getValueForBootKey(configKernelFlags, kSafeModeFlag, &val, &cnt))
{
if (gBootMode & kBootModeSafe)
{
copyArgument(0, kSafeModeFlag, strlen(kSafeModeFlag), &argP, &cntRemaining);
}
}
// Store the merged kernel flags and boot args.
cnt = strlen(configKernelFlags);
if (cnt)
{
if (cnt > cntRemaining)
{
error("Warning: boot arguments too long, truncating\n");
cnt = cntRemaining;
}
strncpy(argP, configKernelFlags, cnt);
argP[cnt++] = ' ';
cntRemaining -= cnt;
}
userCnt = strlen(cp);
if (userCnt > cntRemaining)
{
error("Warning: boot arguments too long, truncating\n");
userCnt = cntRemaining;
}
strncpy(&argP[cnt], cp, userCnt);
argP[cnt+userCnt] = '\0';
if(!shouldboot)
{
gVerboseMode = getValueForKey( kVerboseModeFlag, &val, &cnt, &bootInfo->chameleonConfig ) ||
getValueForKey( kSingleUserModeFlag, &val, &cnt, &bootInfo->chameleonConfig );
gBootMode = ( getValueForKey( kSafeModeFlag, &val, &cnt, &bootInfo->chameleonConfig ) ) ?
kBootModeSafe : kBootModeNormal;
if ( getValueForKey( kIgnoreCachesFlag, &val, &cnt, &bootInfo->chameleonConfig ) )
{
gBootMode = kBootModeSafe;
}
}
if ( getValueForKey( kMKextCacheKey, &val, &cnt, &bootInfo->bootConfig ) )
{
strlcpy(gMKextName, val, cnt + 1);
}
else
{
gMKextName[0]=0;
}
free(configKernelFlags);
free(valueBuffer);
return 0;
}
int
processBootOptions()
{
const char * cp = gBootArgs;
const char * val = 0;
const char * kernel;
int cnt;
int userCnt;
int cntRemaining;
char * argP;
char uuidStr[64];
bool uuidSet = false;
char * configKernelFlags;
char * valueBuffer;
valueBuffer = malloc(VALUE_SIZE);
skipblanks( &cp );
// Update the unit and partition number.
if ( gBootVolume )
{
if (!( gBootVolume->flags & kBVFlagNativeBoot ))
{
readBootSector( gBootVolume->biosdev, gBootVolume->part_boff,
(void *) 0x7c00 );
//
// Setup edx, and signal intention to chain load the
// foreign booter.
//
chainbootdev = gBootVolume->biosdev;
chainbootflag = 1;
return 1;
}
setRootVolume(gBootVolume);
}
// If no boot volume fail immediately because we're just going to fail
// trying to load the config file anyway.
else
return -1;
// Load config table specified by the user, or use the default.
if (!getValueForBootKey(cp, "config", &val, &cnt)) {
val = 0;
cnt = 0;
}
// reload the config, this time with the boot arg
loadSystemConfig(gBootArgs, &bootInfo->bootConfig, NULL, true);
// Use the kernel name specified by the user, or fetch the name
// in the config table, or use the default if not specified.
// Specifying a kernel name on the command line, or specifying
// a non-default kernel name in the config file counts as
// overriding the kernel, which causes the kernelcache not
// to be used.
gOverrideKernel = false;
if (( kernel = extractKernelName((char **)&cp) )) {
strcpy( bootInfo->bootFile, kernel );
gOverrideKernel = true;
} else {
if ( getValueForKey( kKernelNameKey, &val, &cnt, &bootInfo->bootConfig ) ) {
strlcpy( bootInfo->bootFile, val, cnt+1 );
if (strcmp( bootInfo->bootFile, kDefaultKernel ) != 0) {
gOverrideKernel = true;
}
} else {
strcpy( bootInfo->bootFile, kDefaultKernel );
}
}
cntRemaining = BOOT_STRING_LEN - 2; // save 1 for NULL, 1 for space
argP = bootArgs->CommandLine;
// Get config table kernel flags, if not ignored.
if (getValueForBootKey(cp, kIgnoreBootFileFlag, &val, &cnt) ||
!getValueForKey( kKernelFlagsKey, &val, &cnt, &bootInfo->bootConfig )) {
val = "";
cnt = 0;
}
configKernelFlags = malloc(cnt + 1);
strlcpy(configKernelFlags, val, cnt + 1);
if (processBootArgument(kBootUUIDKey, cp, configKernelFlags, bootInfo->config, &argP, &cntRemaining, 0)) {
// boot-uuid was set either on the command-line
// or in the config file.
uuidSet = true;
} else {
//
// Try an alternate method for getting the root UUID on boot helper partitions.
//
if (gBootVolume->flags & kBVFlagBooter)
{
if((loadHelperConfig(&bootInfo->helperConfig) == 0)
&& getValueForKey(kHelperRootUUIDKey, &val, &cnt, &bootInfo->helperConfig) )
{
getValueForKey(kHelperRootUUIDKey, &val, &cnt, &bootInfo->helperConfig);
copyArgument(kBootUUIDKey, val, cnt, &argP, &cntRemaining);
uuidSet = true;
}
}
if (!uuidSet && gBootVolume->fs_getuuid && gBootVolume->fs_getuuid (gBootVolume, uuidStr) == 0) {
verbose("Setting boot-uuid to: %s\n", uuidStr);
copyArgument(kBootUUIDKey, uuidStr, strlen(uuidStr), &argP, &cntRemaining);
uuidSet = true;
}
}
if (!processBootArgument(kRootDeviceKey, cp, configKernelFlags, bootInfo->config, &argP, &cntRemaining, gRootDevice)) {
cnt = 0;
if ( getValueForKey( kBootDeviceKey, &val, &cnt, &bootInfo->bootConfig)) {
valueBuffer[0] = '*';
cnt++;
strlcpy(valueBuffer + 1, val, cnt);
val = valueBuffer;
} else {
if (uuidSet) {
val = "*uuid";
cnt = 5;
} else {
// Don't set "rd=.." if there is no boot device key
// and no UUID.
val = "";
cnt = 0;
}
}
if (cnt > 0) {
copyArgument( kRootDeviceKey, val, cnt, &argP, &cntRemaining);
}
strlcpy( gRootDevice, val, (cnt + 1));
}
/*
* Removed. We don't need this anymore.
*
if (!processBootArgument(kPlatformKey, cp, configKernelFlags, bootInfo->config, &argP, &cntRemaining, gPlatformName)) {
getPlatformName(gPlatformName);
copyArgument(kPlatformKey, gPlatformName, strlen(gPlatformName), &argP, &cntRemaining);
}
*/
if (!getValueForBootKey(cp, kSafeModeFlag, &val, &cnt) &&
!getValueForBootKey(configKernelFlags, kSafeModeFlag, &val, &cnt)) {
if (gBootMode & kBootModeSafe) {
copyArgument(0, kSafeModeFlag, strlen(kSafeModeFlag), &argP, &cntRemaining);
}
}
// Store the merged kernel flags and boot args.
cnt = strlen(configKernelFlags);
if (cnt) {
if (cnt > cntRemaining) {
error("Warning: boot arguments too long, truncating\n");
cnt = cntRemaining;
}
strncpy(argP, configKernelFlags, cnt);
argP[cnt++] = ' ';
cntRemaining -= cnt;
}
userCnt = strlen(cp);
if (userCnt > cntRemaining) {
error("Warning: boot arguments too long, truncating\n");
userCnt = cntRemaining;
}
strncpy(&argP[cnt], cp, userCnt);
argP[cnt+userCnt] = '\0';
if(!shouldboot)
{
gVerboseMode = getValueForKey( kVerboseModeFlag, &val, &cnt, &bootInfo->bootConfig ) ||
getValueForKey( kSingleUserModeFlag, &val, &cnt, &bootInfo->bootConfig );
gBootMode = ( getValueForKey( kSafeModeFlag, &val, &cnt, &bootInfo->bootConfig ) ) ?
kBootModeSafe : kBootModeNormal;
if ( getValueForKey( kOldSafeModeFlag, &val, &cnt, &bootInfo->bootConfig ) ) {
gBootMode = kBootModeSafe;
}
if ( getValueForKey( kMKextCacheKey, &val, &cnt, &bootInfo->bootConfig ) ) {
strlcpy(gMKextName, val, cnt + 1);
}
}
free(configKernelFlags);
free(valueBuffer);
return 0;
}
int
processBootOptions(void)
{
char *cp_cache = (char*)(uint32_t)get_env(envgBootArgs);
if (cp_cache)
{
bzero(gBootArgs,sizeof(gBootArgs));
strlcpy(gBootArgs, cp_cache,sizeof(gBootArgs));
}
const char * cp = gBootArgs;
const char * val = 0;
const char * kernel;
int cnt;
int userCnt;
char * argP;
char * configKernelFlags;
int ArgCntRemaining;
skipblanks( &cp );
// Update the unit and partition number.
if ( ((BVRef)(uint32_t)get_env(envgBootVolume)) )
{
#ifndef NO_MULTIBOOT_SUPPORT
if (!( ((BVRef)(uint32_t)get_env(envgBootVolume))->flags & kBVFlagNativeBoot ))
{
readBootSector( ((BVRef)(uint32_t)get_env(envgBootVolume))->biosdev, ((BVRef)(uint32_t)get_env(envgBootVolume))->part_boff,
(void *) 0x7c00 );
//
// Setup edx, and signal intention to chain load the
// foreign booter.
//
extern unsigned char chainbootdev;
extern unsigned char chainbootflag;
chainbootdev = ((BVRef)(uint32_t)get_env(envgBootVolume))->biosdev;
chainbootflag = 1;
return 1;
}
#endif
setRootVolume(((BVRef)(uint32_t)get_env(envgBootVolume)));
}
// If no boot volume fail immediately because we're just going to fail
// trying to load the config file anyway.
else
return -1;
// Load config table specified by the user, or use the default.
if (!getValueForBootKey(cp, "config", &val, &cnt)) {
val = 0;
cnt = 0;
}
// Load com.apple.Boot.plist from the selected volume
// and use its contents to override default bootConfig.
// This is not a mandatory opeartion anymore.
loadOverrideConfig();
// Load System com.apple.boot.plist config file
loadSystemConfig();
#if virtualM || PCI_FIX // we can simply make an option for this fix
addBootArg("npci=0x2000");
#endif
#if verbose
addBootArg("-v");
#endif
// Use the kernel name specified by the user, or fetch the name
// in the config table, or use the default if not specified.
// Specifying a kernel name on the command line, or specifying
// a non-default kernel name in the config file counts as
// overriding the kernel, which causes the kernelcache not
// to be used.
safe_set_env(envgOverrideKernel,false);
if (( kernel = extractKernelName((char **)&cp) )) {
strlcpy( bootInfo->bootFile, kernel, sizeof(bootInfo->bootFile) );
safe_set_env(envgOverrideKernel,true);
} else {
if ( getValueForKey( kKernelNameKey, &val, &cnt, DEFAULT_BOOT_CONFIG ) ) {
strlcpy( bootInfo->bootFile, val, sizeof(bootInfo->bootFile) );
if (strncmp( bootInfo->bootFile, kDefaultKernel, sizeof(kDefaultKernel) ) != 0) {
safe_set_env(envgOverrideKernel,true);
}
} else if (((BVRef)(uint32_t)get_env(envgBootVolume))->kernelfound == true) {
strlcpy( bootInfo->bootFile, kDefaultKernel, sizeof(bootInfo->bootFile) );
} else {
printf("No kernel found on this volume : hd(%d,%d)\n", BIOS_DEV_UNIT(((BVRef)(uint32_t)get_env(envgBootVolume))), ((BVRef)(uint32_t)get_env(envgBootVolume))->part_no);
sleep(1);
return -1;
}
}
ArgCntRemaining = BOOT_STRING_LEN - 2; // save 1 for NULL, 1 for space
argP = bootArgs->CommandLine;
// Get config table kernel flags, if not ignored.
if (getValueForBootKey(cp, kIgnoreBootFileFlag, &val, &cnt) ||
!getValueForKey( kKernelFlagsKey, &val, &cnt, DEFAULT_BOOT_CONFIG )) {
val = "";
cnt = 0;
}
configKernelFlags = newString(val);
{
bool isSafeMode = false;
if (configKernelFlags) {
isSafeMode = getValueForBootKey(configKernelFlags, kSafeModeFlag, &val, &cnt);
}
if (!getValueForBootKey(cp, kSafeModeFlag, &val, &cnt) &&
(isSafeMode == false)) {
if (get_env(envgBootMode) & kBootModeSafe) {
copyArgument(0, kSafeModeFlag, strlen(kSafeModeFlag), &argP, &ArgCntRemaining);
}
}
}
if (configKernelFlags) {
// Store the merged kernel flags and boot args.
cnt = strlen(configKernelFlags);
if (cnt) {
if (cnt > ArgCntRemaining) {
printf("Warning: boot arguments too long, truncating\n");
cnt = ArgCntRemaining;
}
strncpy(argP, configKernelFlags, cnt);
argP[cnt++] = ' ';
ArgCntRemaining -= cnt;
}
}
userCnt = strlen(cp);
if (userCnt > ArgCntRemaining) {
printf("Warning: boot arguments too long, truncating\n");
userCnt = ArgCntRemaining;
}
strncpy(&argP[cnt], cp, userCnt);
argP[cnt+userCnt] = '\0';
if(!get_env(envShouldboot))
{
bool gVerboseMode = getValueForKey( kVerboseModeFlag, &val, &cnt, DEFAULT_BOOT_CONFIG ) ||
getValueForKey( kSingleUserModeFlag, &val, &cnt, DEFAULT_BOOT_CONFIG );
safe_set_env(envgVerboseMode, gVerboseMode);
long gBootMode = ( getValueForKey( kSafeModeFlag, &val, &cnt, DEFAULT_BOOT_CONFIG ) ) ?
kBootModeSafe : kBootModeNormal;
safe_set_env(envgBootMode,gBootMode);
if ( getValueForKey( kIgnoreCachesFlag, &val, &cnt, DEFAULT_BOOT_CONFIG ) ) {
gBootMode = kBootModeSafe;
safe_set_env(envgBootMode,gBootMode);
}
}
if ( getValueForKey( kMKextCacheKey, &val, &cnt, DEFAULT_BOOT_CONFIG ) )
{
char * MKextName = (char*)(uint32_t)get_env(envMKextName);
strlcpy(MKextName,val,Cache_len_name);
}
if (configKernelFlags)
{
free(configKernelFlags);
}
safe_set_env(envArgCntRemaining,ArgCntRemaining);
return 0;
}
int
processBootOptions()
{
const char * cp = gBootArgs;
const char * val = 0;
const char * kernel;
int cnt;
int userCnt;
int cntRemaining;
char * argP;
char uuidStr[64];
BOOL uuidSet = NO;
char * configKernelFlags;
char * valueBuffer;
valueBuffer = (char *)malloc(VALUE_SIZE);
skipblanks( &cp );
// Update the unit and partition number.
if ( gBootVolume )
{
if ( gBootVolume->flags & kBVFlagForeignBoot )
{
readBootSector( gBootVolume->biosdev, gBootVolume->part_boff,
(void *) 0x7c00 );
//
// Setup edx, and signal intention to chain load the
// foreign booter.
//
chainbootdev = gBootVolume->biosdev;
chainbootflag = 1;
return 1;
}
bootInfo->kernDev &= ~((B_UNITMASK << B_UNITSHIFT ) |
(B_PARTITIONMASK << B_PARTITIONSHIFT));
bootInfo->kernDev |= MAKEKERNDEV( 0,
/* unit */ BIOS_DEV_UNIT(gBootVolume),
/* partition */ gBootVolume->part_no );
}
// Load config table specified by the user, or use the default.
if (getValueForBootKey( cp, "config", &val, &cnt ) == FALSE) {
val = 0;
cnt = 0;
}
loadSystemConfig(val, cnt);
if ( !sysConfigValid ) return -1;
// Use the kernel name specified by the user, or fetch the name
// in the config table, or use the default if not specified.
// Specifying a kernel name on the command line, or specifying
// a non-default kernel name in the config file counts as
// overriding the kernel, which causes the kernelcache not
// to be used.
gOverrideKernel = NO;
if (( kernel = extractKernelName((char **)&cp) )) {
strcpy( bootInfo->bootFile, kernel );
gOverrideKernel = YES;
} else {
if ( getValueForKey( kKernelNameKey, &val, &cnt ) ) {
strlcpy( bootInfo->bootFile, val, cnt+1 );
if (strcmp( bootInfo->bootFile, kDefaultKernel ) != 0) {
gOverrideKernel = YES;
}
} else {
strcpy( bootInfo->bootFile, kDefaultKernel );
}
}
cntRemaining = BOOT_STRING_LEN - 2; // save 1 for NULL, 1 for space
argP = bootArgs->CommandLine;
// Get config table kernel flags, if not ignored.
if (getValueForBootKey(cp, kIgnoreBootFileFlag, &val, &cnt) == TRUE ||
getValueForKey( kKernelFlagsKey, &val, &cnt ) == FALSE) {
val = "";
cnt = 0;
}
configKernelFlags = (char *)malloc(cnt + 1);
strlcpy(configKernelFlags, val, cnt + 1);
if (processBootArgument(kBootUUIDKey, cp, configKernelFlags, bootInfo->config, &argP, &cntRemaining, 0)) {
// boot-uuid was set either on the command-line
// or in the config file.
uuidSet = YES;
} else {
if (GetFSUUID(bootInfo->bootFile, uuidStr) == 0) {
verbose("Setting boot-uuid to: %s\n", uuidStr);
copyArgument(kBootUUIDKey, uuidStr, strlen(uuidStr), &argP, &cntRemaining);
uuidSet = YES;
}
}
if (!processBootArgument(kRootDeviceKey, cp, configKernelFlags, bootInfo->config, &argP, &cntRemaining, gRootDevice)) {
cnt = 0;
if ( getValueForKey( kBootDeviceKey, &val, &cnt)) {
valueBuffer[0] = '*';
cnt++;
strlcpy(valueBuffer + 1, val, cnt);
val = valueBuffer;
} else {
if (uuidSet) {
val = "*uuid";
cnt = 5;
} else {
// Don't set "rd=.." if there is no boot device key
// and no UUID.
val = "";
cnt = 0;
}
}
if (cnt > 0) {
copyArgument( kRootDeviceKey, val, cnt, &argP, &cntRemaining);
}
strlcpy( gRootDevice, val, (cnt + 1));
}
if (!processBootArgument(kPlatformKey, cp, configKernelFlags, bootInfo->config, &argP, &cntRemaining, gPlatformName)) {
getPlatformName(gPlatformName);
copyArgument(kPlatformKey, gPlatformName, strlen(gPlatformName), &argP, &cntRemaining);
}
if (!getValueForBootKey(cp, kSafeModeFlag, &val, &cnt) &&
!getValueForBootKey(configKernelFlags, kSafeModeFlag, &val, &cnt)) {
if (gBootMode & kBootModeSafe) {
copyArgument(0, kSafeModeFlag, strlen(kSafeModeFlag), &argP, &cntRemaining);
}
}
// Store the merged kernel flags and boot args.
cnt = strlen(configKernelFlags);
if (cnt) {
if (cnt > cntRemaining) {
error("Warning: boot arguments too long, truncating\n");
cnt = cntRemaining;
}
strncpy(argP, configKernelFlags, cnt);
argP[cnt++] = ' ';
cntRemaining -= cnt;
}
userCnt = strlen(cp);
if (userCnt > cntRemaining) {
error("Warning: boot arguments too long, truncating\n");
userCnt = cntRemaining;
}
strncpy(&argP[cnt], cp, userCnt);
argP[cnt+userCnt] = '\0';
gVerboseMode = getValueForKey( kVerboseModeFlag, &val, &cnt ) ||
getValueForKey( kSingleUserModeFlag, &val, &cnt );
gBootMode = ( getValueForKey( kSafeModeFlag, &val, &cnt ) ) ?
kBootModeSafe : kBootModeNormal;
if ( getValueForKey( kOldSafeModeFlag, &val, &cnt ) ) {
gBootMode = kBootModeSafe;
}
if ( getValueForKey( kMKextCacheKey, &val, &cnt ) ) {
strlcpy(gMKextName, val, cnt + 1);
}
free(configKernelFlags);
free(valueBuffer);
return 0;
}
int processBootOptions()
{
const char * cp = gBootArgs;
const char * val = 0;
const char * kernel;
int cnt;
int userCnt;
int cntRemaining;
char * argP;
skipblanks( &cp );
// Update the unit and partition number.
if ( gBootVolume )
{
if ( gBootVolume->flags & kBVFlagForeignBoot )
{
readBootSector( gBootVolume->biosdev, gBootVolume->part_boff,
(void *) 0x7c00 );
//
// Setup edx, and signal intention to chain load the
// foreign booter.
//
chainbootdev = gBootVolume->biosdev;
chainbootflag = 1;
return 1;
}
bootArgs->kernDev &= ~((B_UNITMASK << B_UNITSHIFT ) |
(B_PARTITIONMASK << B_PARTITIONSHIFT));
bootArgs->kernDev |= MAKEKERNDEV( 0,
/* unit */ BIOS_DEV_UNIT(gBootVolume),
/* partition */ gBootVolume->part_no );
}
// Load config table specified by the user, or use the default.
if (getValueForBootKey( cp, "config", &val, &cnt ) == FALSE) {
val = 0;
cnt = 0;
}
loadSystemConfig(val, cnt);
if ( !sysConfigValid ) return -1;
// Use the kernel name specified by the user, or fetch the name
// in the config table, or use the default if not specified.
// Specifying a kernel name on the command line, or specifying
// a non-default kernel name in the config file counts as
// overriding the kernel, which causes the kernelcache not
// to be used.
gOverrideKernel = NO;
if (( kernel = extractKernelName((char **)&cp) )) {
strcpy( bootArgs->bootFile, kernel );
gOverrideKernel = YES;
} else {
if ( getValueForKey( kKernelNameKey, &val, &cnt ) ) {
strlcpy( bootArgs->bootFile, val, cnt+1 );
if (strcmp( bootArgs->bootFile, kDefaultKernel ) != 0) {
gOverrideKernel = YES;
}
} else {
strcpy( bootArgs->bootFile, kDefaultKernel );
}
}
cntRemaining = BOOT_STRING_LEN - 2; // save 1 for NULL, 1 for space
// Check to see if we need to specify root device.
// If user types "rd=.." on the boot line, it overrides
// the boot device key in the boot arguments file.
//
argP = bootArgs->bootString;
if ( getValueForBootKey( cp, kRootDeviceKey, &val, &cnt ) == FALSE &&
getValueForKey( kRootDeviceKey, &val, &cnt ) == FALSE ) {
if ( getValueForKey( kBootDeviceKey, &val, &cnt ) ) {
strcpy( argP, "rd=*" );
argP += 4;
strlcpy( argP, val, cnt+1);
cntRemaining -= cnt;
argP += cnt;
*argP++ = ' ';
}
}
// Check to see if we should ignore saved kernel flags.
if (getValueForBootKey(cp, kIgnoreBootFileFlag, &val, &cnt) == FALSE) {
if (getValueForKey( kKernelFlagsKey, &val, &cnt ) == FALSE) {
val = 0;
cnt = 0;
}
}
// Store the merged kernel flags and boot args.
if (cnt > cntRemaining) {
error("Warning: boot arguments too long, truncated\n");
cnt = cntRemaining;
}
if (cnt) {
strncpy(argP, val, cnt);
argP[cnt++] = ' ';
}
cntRemaining = cntRemaining - cnt;
userCnt = strlen(cp);
if (userCnt > cntRemaining) {
error("Warning: boot arguments too long, truncated\n");
userCnt = cntRemaining;
}
strncpy(&argP[cnt], cp, userCnt);
argP[cnt+userCnt] = '\0';
gVerboseMode = getValueForKey( kVerboseModeFlag, &val, &cnt ) ||
getValueForKey( kSingleUserModeFlag, &val, &cnt );
gBootMode = ( getValueForKey( kSafeModeFlag, &val, &cnt ) ) ?
kBootModeSafe : kBootModeNormal;
if ( getValueForKey( kPlatformKey, &val, &cnt ) ) {
strlcpy(gPlatformName, val, cnt + 1);
} else {
strcpy(gPlatformName, "ACPI");
}
if ( getValueForKey( kMKextCacheKey, &val, &cnt ) ) {
strlcpy(gMKextName, val, cnt + 1);
}
return 0;
}
//==========================================================================
// The 'main' function for the booter. Called by boot0 when booting
// from a block device, or by the network booter.
//
// arguments:
// biosdev - Value passed from boot1/NBP to specify the device
// that the booter was loaded from.
//
// If biosdev is kBIOSDevNetwork, then this function will return if
// booting was unsuccessful. This allows the PXE firmware to try the
// next boot device on its list.
void common_boot(int biosdev)
{
int status;
char *bootFile;
unsigned long adler32;
bool quiet;
bool firstRun = true;
bool instantMenu;
bool rescanPrompt = false;
unsigned int allowBVFlags = kBVFlagSystemVolume|kBVFlagForeignBoot;
unsigned int denyBVFlags = kBVFlagEFISystem;
// Set reminder to unload the PXE base code. Neglect to unload
// the base code will result in a hang or kernel panic.
gUnloadPXEOnExit = true;
// Record the device that the booter was loaded from.
gBIOSDev = biosdev & kBIOSDevMask;
// Initialize boot info structure.
initKernBootStruct();
initBooterLog();
// Setup VGA text mode.
// Not sure if it is safe to call setVideoMode() before the
// config table has been loaded. Call video_mode() instead.
#if DEBUG
printf("before video_mode\n"); //Azi: this one is not printing... i remember it did.. check trunk.
#endif
video_mode( 2 ); // 80x25 mono text mode.
#if DEBUG
printf("after video_mode\n");
#endif
// Scan and record the system's hardware information.
scan_platform();
// First get info for boot volume.
scanBootVolumes(gBIOSDev, 0);
bvChain = getBVChainForBIOSDev(gBIOSDev);
//Azi: initialising gBIOSBootVolume & gBootVolume (Startup volume) for the first time.. i think!?
// also, kDefaultPartitionKey is checked here, on selectBootVolume.
setBootGlobals(bvChain);
msglog("setBootGlobals:\n Default: %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBootVolume, gBootVolume->biosdev, gBootVolume->part_no, gBootVolume->flags);
msglog(" bt(0,0): %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBIOSBootVolume, gBIOSBootVolume->biosdev, gBIOSBootVolume->part_no, gBIOSBootVolume->flags);
// Boot Volume is set as Root at this point so, pointing to Extra, /Extra or bt(0,0)/Extra
// is exactly the same. Review bt(0,0)/bla bla paths...... (Reviewing...)
//Azi: works as expected but... trying this because Kernel=mach_kernel doesn't work on a
// override Boot.plist; this makes it impossible to override e.g. Kernel=bt(0,0)mach_kernel
// on the main Boot.plist, when loading kernel from ramdisk btAliased.
loadPrebootRAMDisk();
// Load boot.plist config file
//Azi: on this first check, boot.plist acts as both "booter config file"
// and bootargs/options "carrier".*****
status = loadSystemConfig(&bootInfo->bootConfig);
if (getBoolForKey(kQuietBootKey, &quiet, &bootInfo->bootConfig) && quiet) {
gBootMode |= kBootModeQuiet;
}
// Override firstRun to get to the boot menu instantly by setting "Instant Menu"=y in system config
if (getBoolForKey(kInstantMenuKey, &instantMenu, &bootInfo->bootConfig) && instantMenu) {
firstRun = false;
}
// Loading preboot ramdisk if exists.
// loadPrebootRAMDisk(); //Azi: this needs to be done before load_all_modules()
// because of btAlias... (Reviewing...)
// Intialize module system
if (init_module_system())
{
load_all_modules();
}
// Disable rescan option by default
gEnableCDROMRescan = false;
// If we're loading the booter from optical media... (Reviewing...)
if (biosDevIsCDROM(gBIOSDev))
{
// ... ask the user for Rescan option by setting "Rescan Prompt"=y in system config...
if (getBoolForKey(kRescanPromptKey, &rescanPrompt, &bootInfo->bootConfig) && rescanPrompt)
{
gEnableCDROMRescan = promptForRescanOption();
}
else // ... or enable it with Rescan=y in system config.
if (getBoolForKey(kRescanKey, &gEnableCDROMRescan, &bootInfo->bootConfig) && gEnableCDROMRescan)
{
gEnableCDROMRescan = true;
}
}
//Azi: Is this a cdrom only thing? (Reviewing...)
// Enable touching a single BIOS device only if "Scan Single Drive"=y is set in system config.
if (getBoolForKey(kScanSingleDriveKey, &gScanSingleDrive, &bootInfo->bootConfig) && gScanSingleDrive)
{
scanBootVolumes(gBIOSDev, &bvCount);
}
else
{
//Azi: scanDisks uses scanBootVolumes.
scanDisks(gBIOSDev, &bvCount);
}
// Create a separated bvr chain using the specified filters.
bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);
gBootVolume = selectBootVolume(bvChain);
//#if DEBUG
//printf
msglog(":something...???\n Default: %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBootVolume, gBootVolume->biosdev, gBootVolume->part_no, gBootVolume->flags);
msglog(" bt(0,0): %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBIOSBootVolume, gBIOSBootVolume->biosdev, gBIOSBootVolume->part_no, gBIOSBootVolume->flags);
// getchar();
//#endif
useGUI = true;
// Override useGUI default
getBoolForKey(kGUIKey, &useGUI, &bootInfo->bootConfig);
// AutoResolution - Azi: default to false
// http://forum.voodooprojects.org/index.php/topic,1227.0.html
gAutoResolution = false;
// Check if user enabled AutoResolution on Boot.plist...
getBoolForKey(kAutoResolutionKey, &gAutoResolution, &bootInfo->bootConfig);
// Patch the Video Bios with the extracted resolution, before initGui.
if (gAutoResolution == true)
{
initAutoRes();
}
if (useGUI && initGUI())
{
// initGUI() returned with an error, disabling GUI.
useGUI = false;
}
setBootGlobals(bvChain);
msglog("setBootGlobals:\n Default: %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBootVolume, gBootVolume->biosdev, gBootVolume->part_no, gBootVolume->flags);
msglog(" bt(0,0): %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBIOSBootVolume, gBIOSBootVolume->biosdev, gBIOSBootVolume->part_no, gBIOSBootVolume->flags);
// Parse args, load and start kernel.
while (1) {
const char *val;
int len;
int trycache;
long flags, cachetime, kerneltime, exttime, sleeptime, time;
int ret = -1;
void *binary = (void *)kLoadAddr;
bool tryresume;
bool tryresumedefault;
bool forceresume;
bool ignoreKC = false;
// additional variable for testing alternate kernel image locations on boot helper partitions.
char bootFileSpec[512];
// Initialize globals.
sysConfigValid = false;
gErrors = false;
status = getBootOptions(firstRun);
firstRun = false;
if (status == -1) continue;
//Azi: test (gBootVolume == NULL) - so far Ok!
// test with optical media again...?
// Turn off any GUI elements, draw background and update VRAM.
if ( bootArgs->Video.v_display == GRAPHICS_MODE )
{
gui.devicelist.draw = false;
gui.bootprompt.draw = false;
gui.menu.draw = false;
gui.infobox.draw = false;
gui.logo.draw = false;
drawBackground();
updateVRAM();
}
status = processBootOptions();
//Azi: AutoResolution - closing Vbios here without restoring, causes an allocation error,
// if the user tries to boot, after a e.g."Can't find bla_kernel" msg.
// Doing it on execKernel() instead.
// Status == 1 means to chainboot
if ( status == 1 ) break;
// Status == -1 means that gBootVolume is NULL. Config file is not mandatory anymore!
if ( status == -1 )
{
// gBootVolume == NULL usually means the user hit escape. (Reviewing...)
if (gBootVolume == NULL)
{
freeFilteredBVChain(bvChain);
if (gEnableCDROMRescan)
rescanBIOSDevice(gBIOSDev);
bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);
setBootGlobals(bvChain);
setupDeviceList(&bootInfo->themeConfig);
}
continue;
}
// Other status (e.g. 0) means that we should proceed with boot.
// If cpu handles 64 bit instructions...
if (platformCPUFeature(CPU_FEATURE_EM64T))
{
// use x86_64 kernel arch,...
archCpuType = CPU_TYPE_X86_64;
}
else
{
// else use i386 kernel arch.
archCpuType = CPU_TYPE_I386;
}
// If user override...
if (getValueForKey(kArchKey, &val, &len, &bootInfo->bootConfig))
{
// matches i386...
if (strncmp(val, "i386", 4) == 0)
{
// use i386 kernel arch.
archCpuType = CPU_TYPE_I386;
}
}
if (!getBoolForKey (kWakeKey, &tryresume, &bootInfo->bootConfig)) {
tryresume = true;
tryresumedefault = true;
} else {
tryresumedefault = false;
}
if (!getBoolForKey (kForceWakeKey, &forceresume, &bootInfo->bootConfig)) {
forceresume = false;
}
if (forceresume) {
tryresume = true;
tryresumedefault = false;
}
while (tryresume) {
const char *tmp;
BVRef bvr;
if (!getValueForKey(kWakeKeyImageKey, &val, &len, &bootInfo->bootConfig))
val="/private/var/vm/sleepimage";
// Do this first to be sure that root volume is mounted
ret = GetFileInfo(0, val, &flags, &sleeptime);
if ((bvr = getBootVolumeRef(val, &tmp)) == NULL)
break;
// Can't check if it was hibernation Wake=y is required
if (bvr->modTime == 0 && tryresumedefault)
break;
if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat))
break;
if (!forceresume && ((sleeptime+3)<bvr->modTime)) {
//Azi: no need for printf at this point - reminder
printf ("Hibernate image is too old by %d seconds. Use ForceWake=y to override.\n",bvr->modTime-sleeptime);
break;
}
HibernateBoot((char *)val);
break;
}
//Azi:kernelcache stuff
bool patchKernel = false;
getBoolForKey(kKPatcherKey, &patchKernel, &bootInfo->bootConfig);
//Azi: avoiding having to use -f to ignore kernel cache
//Azi: ignore kernel cache but still use kext cache (E/E.mkext & S/L/E.mkext). - explain...
getBoolForKey(kUseKCKey, &ignoreKC, &bootInfo->bootConfig); // equivalent to UseKernelCache
if (ignoreKC)
{
verbose("KC: cache ignored by user.\n");
// make sure the damn thing get's zeroed, just in case... :)*
bzero(gBootKernelCacheFile, sizeof(gBootKernelCacheFile));
}
else if (patchKernel) // to be moved..?
{
verbose("KC: kernel patcher enabled, ignore cache.\n");
bzero(gBootKernelCacheFile, sizeof(gBootKernelCacheFile));
}
else if (getValueForKey(kKernelCacheKey, &val, &len, &bootInfo->bootConfig))
{
strlcpy(gBootKernelCacheFile, val, len + 1);
verbose("KC: path set by user = %s\n", gBootKernelCacheFile);
//Azi: bypass time check when user sets path ???
// cache is still ignored if time doesn't match... (e.g. booter on usb stick)
}
else
{
// Reset cache name.
bzero(gCacheNameAdler + 64, sizeof(gCacheNameAdler) - 64);
// kextcache_main.c: Construct entry from UUID of boot volume...(reminder)
// assemble ?string? to generate adler from...
// sprintf(gCacheNameAdler + 64, "%s,%s", gRootDevice, bootInfo->bootFile); - OLD
const char *ProductName = getStringForKey("SMproductname", &bootInfo->smbiosConfig);
sprintf(gCacheNameAdler, ProductName); // well, at least the smbios.plist can be loaded this early...
// to set/get "ProductName" this early, booter needs complete rewrite!!
// see DHP's Revolution booter rework example!
// verbose("KC: gCacheNameAdler 1 = %s\n", gCacheNameAdler);
//Azi: check the validity of this, e.g. on Helper Partitions
sprintf(gCacheNameAdler + 64, "%s", "\\System\\Library\\CoreServices\\boot.efi");
// verbose("KC: gCacheNameAdler 2 = %s\n", gCacheNameAdler + 64);
sprintf(gCacheNameAdler + (64 + 38), "%s", bootInfo->bootFile);
// verbose("KC: gCacheNameAdler 3 = %s\n", gCacheNameAdler + (64 + 38));
// generate adler
adler32 = Adler32((unsigned char *)gCacheNameAdler, sizeof(gCacheNameAdler));
// verbose("KC: Adler32 = %08X\n", adler32);
//Azi: no check for OS version here ?? - yes there is :)
// append arch and/or adler (checksum) to kc path...
if (gMacOSVersion[3] <= '5')
{
sprintf(gBootKernelCacheFile, "%s.%08lX", kCachePathTigerLeopard, adler32);
// verbose("KC: adler added to path = %s\n", gBootKernelCacheFile);
}
else
{
sprintf(gBootKernelCacheFile, "%s_%s.%08X", kCachePathSnowLion,
(archCpuType == CPU_TYPE_I386) ? "i386" : "x86_64", adler32);
// verbose("KC: arch & adler added to path = %s\n", gBootKernelCacheFile);
}
}
// Check for cache file.
//Azi: trycache is done if...
trycache = ( ( (gBootMode & kBootModeSafe) == 0) //... we're not booting in safe mode (-x arg),
&& !gOverrideKernel // we're not overriding default kernel "name",
&& (gBootFileType == kBlockDeviceType) // we're booting from local storage device,
&& (gMKextName[0] == '\0') // "MKext Cache" key IS NOT in use, and
&& (gBootKernelCacheFile[0] != '\0') ); // gBootKernelCacheFile is populated.
// we could add the use of "kernelpatcher" to this bunch..??
// verbose("Loading Darwin %s\n", gMacOSVersion); //Azi: move?? to getOSVersion? :)
if (trycache) do
{
verbose("KC: checking kernel cache (system prelinked kernel)...\n");
// if we haven't found the kernel yet, don't use the cache
ret = GetFileInfo(NULL, bootInfo->bootFile, &flags, &kerneltime);
if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat))
{
verbose("KC: no kernel found (shouldn't happen?!?)\n");
trycache = 0; // ignore kernel cache...
break;
}
verbose("KC: kerneltime = %d\n", kerneltime);
ret = GetFileInfo(NULL, gBootKernelCacheFile, &flags, &cachetime);
if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)
|| (cachetime < kerneltime))
{
if (cachetime <= 100) // confirm: 100 = inexistent path, -xxxxxxxxx = wrong name
// not confirming... i also get -xxxxxxxxx with inexisting prelinked kernel
verbose("KC: cachetime = %d, kernel cache path/adler is incorrect, ignoring it. ??? \n",
cachetime);
else
verbose("KC: cachetime = %d, kernel cache is older than the kernel, ignoring it.\n",
cachetime);
trycache = 0;
break;
}
verbose("KC: cachetime = %d\n", cachetime);
ret = GetFileInfo("/System/Library/", "Extensions", &flags, &exttime);
if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeDirectory)
&& (cachetime < exttime))
{
verbose("KC: exttime = %d, kernel cache is older than S/L/E, ignoring it.\n", exttime);
trycache = 0;
break;
}
verbose("KC: exttime = %d\n", exttime);
if (kerneltime > exttime) // if S/L/E is older than the kernel...
{
verbose("KC: S/L/E is older than the kernel, matching exttime with kerneltime...\n");
exttime = kerneltime;
}
verbose("KC: exttime +1 = %d\n", exttime + 1);
if (cachetime != (exttime + 1))
{
verbose("KC: kernel cache time is diff from S/L/E time, ignoring it.\n");
trycache = 0;
break;
}
verbose("KC: kernel cache found and up to date, will be used.\n");
} while (0);
do
{
// Load kernel cache if not ignored.
if (trycache)
{
bootFile = gBootKernelCacheFile;
verbose("Loading kernel cache %s\n", bootFile);
ret = LoadFile(bootFile);
binary = (void *)kLoadAddr;
if (ret >= 0)
{
break;
}
}
bootFile = bootInfo->bootFile;
// Try to load kernel image from alternate locations on boot helper partitions.
sprintf(bootFileSpec, "com.apple.boot.P/%s", bootFile);
ret = GetFileInfo(NULL, bootFileSpec, &flags, &time);
if (ret == -1)
{
sprintf(bootFileSpec, "com.apple.boot.R/%s", bootFile);
ret = GetFileInfo(NULL, bootFileSpec, &flags, &time);
if (ret == -1)
{
sprintf(bootFileSpec, "com.apple.boot.S/%s", bootFile);
ret = GetFileInfo(NULL, bootFileSpec, &flags, &time);
if (ret == -1)
{
// No alternate location found, using the original kernel image path.
strcpy(bootFileSpec, bootFile);
}
}
}
verbose("Loading kernel %s\n", bootFileSpec);
ret = LoadThinFatFile(bootFileSpec, &binary);
if (ret <= 0 && archCpuType == CPU_TYPE_X86_64)
{
archCpuType = CPU_TYPE_I386;
ret = LoadThinFatFile(bootFileSpec, &binary);
}
} while (0);
clearActivityIndicator();
/*#if DEBUG
printf("Pausing...");
sleep(8);
#endif
Azi: annoying stuff :P */
if (ret <= 0)
{
printf("Can't find %s\n", bootFile);
sleep(1);
if (gBootFileType == kNetworkDeviceType) {
// Return control back to PXE. Don't unload PXE base code.
gUnloadPXEOnExit = false;
break;
}
}
else
{
// Won't return if successful.
ret = ExecKernel(binary);
}
} // while (1)
// chainboot
if (status==1) {
if (getVideoMode() == GRAPHICS_MODE) { // if we are already in graphics-mode,
setVideoMode(VGA_TEXT_MODE, 0); // switch back to text mode
}
}
if ((gBootFileType == kNetworkDeviceType) && gUnloadPXEOnExit)
{
nbpUnloadBaseCode();
}
}
