X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/6601e61aa18bf4f09af135ff61fc7f4771d23b06..b0d623f7f2ae71ed96e60569f61f9a9a27016e80:/iokit/Kernel/IOPlatformExpert.cpp diff --git a/iokit/Kernel/IOPlatformExpert.cpp b/iokit/Kernel/IOPlatformExpert.cpp index 1fa9a6ec7..8109e190e 100644 --- a/iokit/Kernel/IOPlatformExpert.cpp +++ b/iokit/Kernel/IOPlatformExpert.cpp @@ -1,23 +1,29 @@ /* - * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 1998-2008 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * HISTORY @@ -35,18 +41,21 @@ #include #include #include +#include #include #include +#include extern "C" { #include #include +#include } void printDictionaryKeys (OSDictionary * inDictionary, char * inMsg); -static void getCStringForObject (OSObject * inObj, char * outStr); +static void getCStringForObject(OSObject *inObj, char *outStr, size_t outStrLen); /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ @@ -95,7 +104,7 @@ bool IOPlatformExpert::start( IOService * provider ) return false; // Override the mapper present flag is requested by boot arguments. - if (PE_parse_boot_arg("dart", &debugFlags) && (debugFlags == 0)) + if (PE_parse_boot_argn("dart", &debugFlags, sizeof (debugFlags)) && (debugFlags == 0)) removeProperty(kIOPlatformMapperPresentKey); // Register the presence or lack thereof a system @@ -240,19 +249,18 @@ int (*PE_halt_restart)(unsigned int type) = 0; int IOPlatformExpert::haltRestart(unsigned int type) { - IOPMrootDomain *rd = getPMRootDomain(); - OSBoolean *b = 0; - - if(rd) b = (OSBoolean *)OSDynamicCast(OSBoolean, rd->getProperty(OSString::withCString("StallSystemAtHalt"))); + if (type == kPEPanicSync) return 0; - if (type == kPEHangCPU) while (1); + if (type == kPEHangCPU) while (true) {} - if (kOSBooleanTrue == b) { - // Stall shutdown for 5 minutes, and if no outside force has removed our power, continue with - // a reboot. - IOSleep(1000*60*5); - type = kPERestartCPU; + if (type == kPEUPSDelayHaltCPU) { + // RestartOnPowerLoss feature was turned on, proceed with shutdown. + type = kPEHaltCPU; } + + // On ARM kPEPanicRestartCPU is supported in the drivers + if (type == kPEPanicRestartCPU) + type = kPERestartCPU; if (PE_halt_restart) return (*PE_halt_restart)(type); else return -1; @@ -368,13 +376,14 @@ PMLog(const char *who, unsigned long event, if (debugFlags & kIOLogPower) { - uint32_t nows, nowus; + clock_sec_t nows; + clock_usec_t nowus; clock_get_system_microtime(&nows, &nowus); nowus += (nows % 1000) * 1000000; - kprintf("pm%u %x %.30s %d %x %x\n", - nowus, (unsigned) current_thread(), who, // Identity - (int) event, param1, param2); // Args + kprintf("pm%u %p %.30s %d %lx %lx\n", + nowus, current_thread(), who, // Identity + (int) event, (long) param1, (long) param2); // Args if (debugFlags & kIOLogTracePower) { static const UInt32 sStartStopBitField[] = @@ -396,7 +405,7 @@ PMLog(const char *who, unsigned long event, } // Record the timestamp, wish I had a this pointer - IOTimeStampConstant(code, (UInt32) who, event, param1, param2); + IOTimeStampConstant(code, (uintptr_t) who, event, param1, param2); } } } @@ -417,7 +426,6 @@ void IOPlatformExpert::PMInstantiatePowerDomains ( void ) root->init(); root->attach(this); root->start(this); - root->youAreRoot(); } @@ -686,7 +694,8 @@ void printDictionaryKeys (OSDictionary * inDictionary, char * inMsg) if ( mkey->isEqualTo ("name") ) { char nameStr[64]; nameStr[0] = 0; - getCStringForObject (inDictionary->getObject ("name"), nameStr ); + getCStringForObject(inDictionary->getObject("name"), nameStr, + sizeof(nameStr)); if (strlen(nameStr) > 0) IOLog ("%s name is %s\n", inMsg, nameStr); } @@ -699,7 +708,8 @@ void printDictionaryKeys (OSDictionary * inDictionary, char * inMsg) mcoll->release (); } -static void getCStringForObject (OSObject * inObj, char * outStr) +static void +getCStringForObject(OSObject *inObj, char *outStr, size_t outStrLen) { char * buffer; unsigned int len, i; @@ -709,10 +719,11 @@ static void getCStringForObject (OSObject * inObj, char * outStr) char * objString = (char *) (inObj->getMetaClass())->getClassName(); - if ((0 == strcmp(objString,"OSString")) || (0 == strcmp (objString, "OSSymbol"))) - strcpy (outStr, ((OSString *)inObj)->getCStringNoCopy()); + if ((0 == strncmp(objString, "OSString", sizeof("OSString"))) || + (0 == strncmp(objString, "OSSymbol", sizeof("OSSymbol")))) + strlcpy(outStr, ((OSString *)inObj)->getCStringNoCopy(), outStrLen); - else if (0 == strcmp(objString,"OSData")) { + else if (0 == strncmp(objString, "OSData", sizeof("OSData"))) { len = ((OSData *)inObj)->getLength(); buffer = (char *)((OSData *)inObj)->getBytesNoCopy(); if (buffer && (len > 0)) { @@ -724,15 +735,17 @@ static void getCStringForObject (OSObject * inObj, char * outStr) } } -/* IOPMPanicOnShutdownHang +/* IOShutdownNotificationsTimedOut * - Called from a timer installed by PEHaltRestart */ -static void IOPMPanicOnShutdownHang(thread_call_param_t p0, thread_call_param_t p1) +static void IOShutdownNotificationsTimedOut( + thread_call_param_t p0, + thread_call_param_t p1) { - int type = (int)p0; + int type = (int)(long)p0; /* 30 seconds has elapsed - resume shutdown */ - gIOPlatform->haltRestart(type); + if(gIOPlatform) gIOPlatform->haltRestart(type); } @@ -769,11 +782,10 @@ int PEGetPlatformEpoch(void) int PEHaltRestart(unsigned int type) { IOPMrootDomain *pmRootDomain = IOService::getPMRootDomain(); - bool noWaitForResponses; AbsoluteTime deadline; thread_call_t shutdown_hang; - if(type == kPEHaltCPU || type == kPERestartCPU) + if(type == kPEHaltCPU || type == kPERestartCPU || type == kPEUPSDelayHaltCPU) { /* Notify IOKit PM clients of shutdown/restart Clients subscribe to this message with a call to @@ -784,19 +796,19 @@ int PEHaltRestart(unsigned int type) If all goes well the machine will be off by the time the timer expires. */ - shutdown_hang = thread_call_allocate( &IOPMPanicOnShutdownHang, (thread_call_param_t) type); + shutdown_hang = thread_call_allocate( &IOShutdownNotificationsTimedOut, + (thread_call_param_t) type); clock_interval_to_deadline( 30, kSecondScale, &deadline ); thread_call_enter1_delayed( shutdown_hang, 0, deadline ); - - noWaitForResponses = pmRootDomain->tellChangeDown2(type); + + pmRootDomain->handlePlatformHaltRestart(type); /* This notification should have few clients who all do their work synchronously. In this "shutdown notification" context we don't give drivers the option of working asynchronously and responding later. PM internals make it very hard to wait for asynchronous - replies. In fact, it's a bad idea to even be calling - tellChangeDown2 from here at all. + replies. */ } @@ -812,22 +824,76 @@ UInt32 PESavePanicInfo(UInt8 *buffer, UInt32 length) long PEGetGMTTimeOfDay(void) { - if( gIOPlatform) - return( gIOPlatform->getGMTTimeOfDay()); - else - return( 0 ); + long result = 0; + + if( gIOPlatform) result = gIOPlatform->getGMTTimeOfDay(); + + return (result); } void PESetGMTTimeOfDay(long secs) { - if( gIOPlatform) - gIOPlatform->setGMTTimeOfDay(secs); + if( gIOPlatform) gIOPlatform->setGMTTimeOfDay(secs); } } /* extern "C" */ void IOPlatformExpert::registerNVRAMController(IONVRAMController * caller) { + OSData * data; + IORegistryEntry * entry; + OSString * string = 0; + uuid_string_t uuid; + + entry = IORegistryEntry::fromPath( "/efi/platform", gIODTPlane ); + if ( entry ) + { + data = OSDynamicCast( OSData, entry->getProperty( "system-id" ) ); + if ( data && data->getLength( ) == 16 ) + { + SHA1_CTX context; + uint8_t digest[ SHA_DIGEST_LENGTH ]; + const uuid_t space = { 0x2A, 0x06, 0x19, 0x90, 0xD3, 0x8D, 0x44, 0x40, 0xA1, 0x39, 0xC4, 0x97, 0x70, 0x37, 0x65, 0xAC }; + + SHA1Init( &context ); + SHA1Update( &context, space, sizeof( space ) ); + SHA1Update( &context, data->getBytesNoCopy( ), data->getLength( ) ); + SHA1Final( digest, &context ); + + digest[ 6 ] = ( digest[ 6 ] & 0x0F ) | 0x50; + digest[ 8 ] = ( digest[ 8 ] & 0x3F ) | 0x80; + + uuid_unparse( digest, uuid ); + string = OSString::withCString( uuid ); + } + + entry->release( ); + } + + if ( string == 0 ) + { + entry = IORegistryEntry::fromPath( "/options", gIODTPlane ); + if ( entry ) + { + data = OSDynamicCast( OSData, entry->getProperty( "platform-uuid" ) ); + if ( data && data->getLength( ) == sizeof( uuid_t ) ) + { + uuid_unparse( ( uint8_t * ) data->getBytesNoCopy( ), uuid ); + string = OSString::withCString( uuid ); + } + + entry->release( ); + } + } + + if ( string ) + { + getProvider( )->setProperty( kIOPlatformUUIDKey, string ); + publishResource( kIOPlatformUUIDKey, string ); + + string->release( ); + } + publishResource("IONVRAM"); } @@ -841,7 +907,7 @@ IOReturn IOPlatformExpert::callPlatformFunction(const OSSymbol *functionName, if (waitForFunction) { _resources = waitForService(resourceMatching(functionName)); } else { - _resources = resources(); + _resources = getResourceService(); } if (_resources == 0) return kIOReturnUnsupported; @@ -1033,7 +1099,7 @@ bool IODTPlatformExpert::getMachineName( char * name, int maxLength ) ok = (0 != prop); if( ok ) - strncpy( name, (const char *) prop->getBytesNoCopy(), maxLength ); + strlcpy( name, (const char *) prop->getBytesNoCopy(), maxLength ); return( ok ); } @@ -1198,7 +1264,7 @@ IOPlatformExpertDevice::initWithArgs( argsData[ 2 ] = p3; argsData[ 3 ] = p4; - setProperty("IOPlatformArgs", (void *)argsData, sizeof( argsData)); + setProperty("IOPlatformArgs", (void *)argsData, sizeof(argsData)); return( true); } @@ -1208,6 +1274,53 @@ IOWorkLoop *IOPlatformExpertDevice::getWorkLoop() const return workLoop; } +IOReturn IOPlatformExpertDevice::setProperties( OSObject * properties ) +{ + OSDictionary * dictionary; + OSObject * object; + IOReturn status; + + status = super::setProperties( properties ); + if ( status != kIOReturnUnsupported ) return status; + + status = IOUserClient::clientHasPrivilege( current_task( ), kIOClientPrivilegeAdministrator ); + if ( status != kIOReturnSuccess ) return status; + + dictionary = OSDynamicCast( OSDictionary, properties ); + if ( dictionary == 0 ) return kIOReturnBadArgument; + + object = dictionary->getObject( kIOPlatformUUIDKey ); + if ( object ) + { + IORegistryEntry * entry; + OSString * string; + uuid_t uuid; + + string = ( OSString * ) getProperty( kIOPlatformUUIDKey ); + if ( string ) return kIOReturnNotPermitted; + + string = OSDynamicCast( OSString, object ); + if ( string == 0 ) return kIOReturnBadArgument; + + status = uuid_parse( string->getCStringNoCopy( ), uuid ); + if ( status != 0 ) return kIOReturnBadArgument; + + entry = IORegistryEntry::fromPath( "/options", gIODTPlane ); + if ( entry ) + { + entry->setProperty( "platform-uuid", uuid, sizeof( uuid_t ) ); + entry->release( ); + } + + setProperty( kIOPlatformUUIDKey, string ); + publishResource( kIOPlatformUUIDKey, string ); + + return kIOReturnSuccess; + } + + return kIOReturnUnsupported; +} + void IOPlatformExpertDevice::free() { if (workLoop) @@ -1275,3 +1388,4 @@ bool IOPanicPlatform::start(IOService * provider) { return false; } +