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--- xnu/xnu-6153.41.3/iokit/bsddev/IOKitBSDInit.cpp
+++ xnu/xnu-201.19/iokit/bsddev/IOKitBSDInit.cpp
@@ -1,1048 +1,531 @@
/*
- * Copyright (c) 1998-2011 Apple Inc. All rights reserved.
+ * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
- *
- * 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.
- *
- * 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
+ * @APPLE_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 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
*/
#include <IOKit/IOBSD.h>
#include <IOKit/IOLib.h>
#include <IOKit/IOService.h>
-#include <IOKit/IOCatalogue.h>
#include <IOKit/IODeviceTreeSupport.h>
#include <IOKit/IOKitKeys.h>
#include <IOKit/IOPlatformExpert.h>
-#include <IOKit/IOUserClient.h>
+
+#include <sys/disklabel.h>
extern "C" {
+
#include <pexpert/pexpert.h>
#include <kern/clock.h>
-#include <mach/machine.h>
-#include <uuid/uuid.h>
-#include <sys/vnode_internal.h>
-#include <sys/mount.h>
// how long to wait for matching root device, secs
-#if DEBUG
-#define ROOTDEVICETIMEOUT 120
-#else
-#define ROOTDEVICETIMEOUT 60
-#endif
-
-extern dev_t mdevadd(int devid, uint64_t base, unsigned int size, int phys);
-extern dev_t mdevlookup(int devid);
-extern void mdevremoveall(void);
-extern int mdevgetrange(int devid, uint64_t *base, uint64_t *size);
-extern void di_root_ramfile(IORegistryEntry * entry);
-
-#define ROUNDUP(a, b) (((a) + ((b) - 1)) & (~((b) - 1)))
-
-#define IOPOLLED_COREFILE (CONFIG_KDP_INTERACTIVE_DEBUGGING)
-
-#if defined(XNU_TARGET_OS_BRIDGE)
-#define kIOCoreDumpPath "/private/var/internal/kernelcore"
-#else
-#define kIOCoreDumpPath "/private/var/vm/kernelcore"
-#endif
-
-#if CONFIG_KDP_INTERACTIVE_DEBUGGING
-/*
- * Touched by IOFindBSDRoot() if a RAMDisk is used for the root device.
- */
-extern uint64_t kdp_core_ramdisk_addr;
-extern uint64_t kdp_core_ramdisk_size;
-#endif
-
-#if IOPOLLED_COREFILE
-static void IOOpenPolledCoreFile(thread_call_param_t __unused, thread_call_param_t corefilename);
-
-thread_call_t corefile_open_call = NULL;
-#endif
+#define ROOTDEVICETIMEOUT 60
+
kern_return_t
IOKitBSDInit( void )
{
- IOService::publishResource("IOBSD");
-
-#if IOPOLLED_COREFILE
- corefile_open_call = thread_call_allocate_with_options(IOOpenPolledCoreFile, NULL, THREAD_CALL_PRIORITY_KERNEL, THREAD_CALL_OPTIONS_ONCE);
-#endif
-
- return kIOReturnSuccess;
-}
-
-void
-IOServicePublishResource( const char * property, boolean_t value )
-{
- if (value) {
- IOService::publishResource( property, kOSBooleanTrue );
+ IOLog("IOKitBSDInit\n");
+
+ IOService::publishResource("IOBSD");
+
+ return( kIOReturnSuccess );
+}
+
+OSDictionary * IOBSDNameMatching( const char * name )
+{
+ OSDictionary * dict;
+ const OSSymbol * str = 0;
+
+ do {
+
+ dict = IOService::serviceMatching( gIOServiceKey );
+ if( !dict)
+ continue;
+ str = OSSymbol::withCString( name );
+ if( !str)
+ continue;
+ dict->setObject( kIOBSDNameKey, (OSObject *) str );
+ str->release();
+
+ return( dict );
+
+ } while( false );
+
+ if( dict)
+ dict->release();
+ if( str)
+ str->release();
+
+ return( 0 );
+}
+
+OSDictionary * IOCDMatching( const char * name )
+{
+ OSDictionary * dict;
+ const OSSymbol * str;
+
+ dict = IOService::serviceMatching( "IOMedia" );
+ if( dict == 0 ) {
+ IOLog("Unable to find IOMedia\n");
+ return 0;
+ }
+
+ str = OSSymbol::withCString( "CD_ROM_Mode_1" );
+ if( str == 0 ) {
+ dict->release();
+ return 0;
+ }
+
+ dict->setObject( "Content", (OSObject *)str );
+ str->release();
+ return( dict );
+}
+
+OSDictionary * IONetworkMatching( const char * path,
+ char * buf, int maxLen )
+{
+ OSDictionary * matching = 0;
+ OSDictionary * dict;
+ OSString * str;
+ char * comp;
+ const char * skip;
+ int len;
+
+ do {
+
+ len = strlen( kIODeviceTreePlane ":" );
+ maxLen -= len;
+ if( maxLen < 0)
+ continue;
+
+ strcpy( buf, kIODeviceTreePlane ":" );
+ comp = buf + len;
+
+ // remove parameters following ':' from the path
+ skip = strchr( path, ':');
+ if( !skip)
+ continue;
+
+ len = skip - path;
+ maxLen -= len;
+ if( maxLen < 0)
+ continue;
+ strncpy( comp, path, len );
+ comp[ len ] = 0;
+
+ matching = IOService::serviceMatching( "IONetworkInterface" );
+ if( !matching)
+ continue;
+ dict = IOService::addLocation( matching );
+ if( !dict)
+ continue;
+
+ str = OSString::withCString( buf );
+ if( !str)
+ continue;
+ dict->setObject( kIOPathMatchKey, str );
+ str->release();
+
+ return( matching );
+
+ } while( false );
+
+ if( matching)
+ matching->release();
+
+ return( 0 );
+}
+
+OSDictionary * IONetworkNamePrefixMatching( const char * prefix )
+{
+ OSDictionary * matching;
+ OSDictionary * propDict = 0;
+ const OSSymbol * str = 0;
+
+ do {
+ matching = IOService::serviceMatching( "IONetworkInterface" );
+ if ( matching == 0 )
+ continue;
+
+ propDict = OSDictionary::withCapacity(1);
+ if ( propDict == 0 )
+ continue;
+
+ str = OSSymbol::withCString( prefix );
+ if ( str == 0 )
+ continue;
+
+ propDict->setObject( "IOInterfaceNamePrefix", (OSObject *) str );
+ str->release();
+ str = 0;
+
+ if ( matching->setObject( gIOPropertyMatchKey,
+ (OSObject *) propDict ) != true )
+ continue;
+
+ propDict->release();
+ propDict = 0;
+
+ return( matching );
+
+ } while ( false );
+
+ if ( matching ) matching->release();
+ if ( propDict ) propDict->release();
+ if ( str ) str->release();
+
+ return( 0 );
+}
+
+static bool IORegisterNetworkInterface( IOService * netif )
+{
+ // A network interface is typically named and registered
+ // with BSD after receiving a request from a user space
+ // "namer". However, for cases when the system needs to
+ // root from the network, this registration task must be
+ // done inside the kernel and completed before the root
+ // device is handed to BSD.
+
+ IOService * stack;
+ OSNumber * zero = 0;
+ OSString * path = 0;
+ OSDictionary * dict = 0;
+ char * pathBuf = 0;
+ int len;
+ enum { kMaxPathLen = 512 };
+
+ do {
+ stack = IOService::waitForService(
+ IOService::serviceMatching("IONetworkStack") );
+ if ( stack == 0 ) break;
+
+ dict = OSDictionary::withCapacity(3);
+ if ( dict == 0 ) break;
+
+ zero = OSNumber::withNumber((UInt64) 0, 32);
+ if ( zero == 0 ) break;
+
+ pathBuf = (char *) IOMalloc( kMaxPathLen );
+ if ( pathBuf == 0 ) break;
+
+ len = kMaxPathLen;
+ if ( netif->getPath( pathBuf, &len, gIOServicePlane )
+ == false ) break;
+
+ path = OSString::withCStringNoCopy( pathBuf );
+ if ( path == 0 ) break;
+
+ dict->setObject( "IOInterfaceUnit", zero );
+ dict->setObject( kIOPathMatchKey, path );
+
+ stack->setProperties( dict );
+ }
+ while ( false );
+
+ if ( zero ) zero->release();
+ if ( path ) path->release();
+ if ( dict ) dict->release();
+ if ( pathBuf ) IOFree(pathBuf, kMaxPathLen);
+
+ return ( netif->getProperty( kIOBSDNameKey ) != 0 );
+}
+
+OSDictionary * IODiskMatching( const char * path, char * buf, int maxLen )
+{
+ const char * look;
+ const char * alias;
+ char * comp;
+ long unit = -1;
+ long partition = -1;
+ char c;
+
+ // scan the tail of the path for "@unit:partition"
+ do {
+ // Have to get the full path to the controller - an alias may
+ // tell us next to nothing, like "hd:8"
+ alias = IORegistryEntry::dealiasPath( &path, gIODTPlane );
+
+ look = path + strlen( path);
+ c = ':';
+ while( look != path) {
+ if( *(--look) == c) {
+ if( c == ':') {
+ partition = strtol( look + 1, 0, 0 );
+ c = '@';
+ } else if( c == '@') {
+ unit = strtol( look + 1, 0, 16 );
+ c = '/';
+ } else if( c == '/') {
+ c = 0;
+ break;
+ }
+ }
+
+ if( alias && (look == path)) {
+ path = alias;
+ look = path + strlen( path);
+ alias = 0;
+ }
+ }
+ if( c || unit == -1 || partition == -1)
+ continue;
+
+ maxLen -= strlen( "{" kIOPathMatchKey "='" kIODeviceTreePlane ":" );
+ maxLen -= ( alias ? strlen( alias ) : 0 ) + (look - path);
+ maxLen -= strlen( "/@hhhhhhhh:dddddddddd';}" );
+
+ if( maxLen > 0) {
+ sprintf( buf, "{" kIOPathMatchKey "='" kIODeviceTreePlane ":" );
+ comp = buf + strlen( buf );
+
+ if( alias) {
+ strcpy( comp, alias );
+ comp += strlen( alias );
+ }
+
+ if ( (look - path)) {
+ strncpy( comp, path, look - path);
+ comp += look - path;
+ }
+
+ sprintf( comp, "/@%lx:%ld';}", unit, partition );
+ } else
+ continue;
+
+ return( OSDynamicCast(OSDictionary, OSUnserialize( buf, 0 )) );
+
+ } while( false );
+
+ return( 0 );
+}
+
+OSDictionary * IOOFPathMatching( const char * path, char * buf, int maxLen )
+{
+ /* need to look up path, get device type,
+ call matching help based on device type */
+
+ return( IODiskMatching( path, buf, maxLen ));
+
+}
+
+kern_return_t IOFindBSDRoot( char * rootName,
+ dev_t * root, u_int32_t * oflags )
+{
+ mach_timespec_t t;
+ IOService * service;
+ IORegistryEntry * regEntry;
+ OSDictionary * matching = 0;
+ OSString * iostr;
+ OSNumber * off;
+ OSData * data = 0;
+
+ UInt32 flags = 0;
+ int minor, major;
+ char * rdBootVar;
+ enum { kMaxPathBuf = 512, kMaxBootVar = 128 };
+ char * str;
+ const char * look = 0;
+ int len;
+ bool forceNet = false;
+ bool debugInfoPrintedOnce = false;
+
+ static int mountAttempts = 0;
+
+ if( mountAttempts++)
+ IOSleep( 5 * 1000 );
+
+ str = (char *) IOMalloc( kMaxPathBuf + kMaxBootVar );
+ if( !str)
+ return( kIOReturnNoMemory );
+ rdBootVar = str + kMaxPathBuf;
+
+ if (!PE_parse_boot_arg("rd", rdBootVar )
+ && !PE_parse_boot_arg("rootdev", rdBootVar ))
+ rdBootVar[0] = 0;
+
+ do {
+ if( (regEntry = IORegistryEntry::fromPath( "/chosen", gIODTPlane ))) {
+ data = (OSData *) regEntry->getProperty( "rootpath" );
+ regEntry->release();
+ if( data)
+ continue;
+ }
+ if( (regEntry = IORegistryEntry::fromPath( "/options", gIODTPlane ))) {
+ data = (OSData *) regEntry->getProperty( "boot-file" );
+ regEntry->release();
+ if( data)
+ continue;
+ }
+ } while( false );
+
+ if( data)
+ look = (const char *) data->getBytesNoCopy();
+
+ if( rdBootVar[0] == '*') {
+ look = rdBootVar + 1;
+ forceNet = false;
+ } else {
+ if( (regEntry = IORegistryEntry::fromPath( "/", gIODTPlane ))) {
+ forceNet = (0 != regEntry->getProperty( "net-boot" ));
+ regEntry->release();
+ }
+ }
+
+ if( look) {
+ // from OpenFirmware path
+ IOLog("From path: \"%s\", ", look);
+
+ if( forceNet || (0 == strncmp( look, "enet", strlen( "enet" ))) ) {
+ matching = IONetworkMatching( look, str, kMaxPathBuf );
+ } else {
+ matching = IODiskMatching( look, str, kMaxPathBuf );
+ }
+ }
+
+ if( (!matching) && rdBootVar[0] ) {
+ // by BSD name
+ look = rdBootVar;
+ if( look[0] == '*')
+ look++;
+
+ if ( strncmp( look, "en", strlen( "en" )) == 0 ) {
+ matching = IONetworkNamePrefixMatching( "en" );
+ } else if ( strncmp( look, "cdrom", strlen( "cdrom" )) == 0 ) {
+ matching = IOCDMatching( look );
} else {
- IOService::getResourceService()->removeProperty( property );
+ matching = IOBSDNameMatching( look );
}
-}
-
-boolean_t
-IOServiceWaitForMatchingResource( const char * property, uint64_t timeout )
-{
- OSDictionary * dict = NULL;
- IOService * match = NULL;
- boolean_t found = false;
-
- do {
- dict = IOService::resourceMatching( property );
- if (!dict) {
- continue;
- }
- match = IOService::waitForMatchingService( dict, timeout );
- if (match) {
- found = true;
- }
- } while (false);
-
- if (dict) {
- dict->release();
+ }
+
+ if( !matching) {
+ OSString * astring;
+ // any UFS
+ matching = IOService::serviceMatching( "IOMedia" );
+ astring = OSString::withCStringNoCopy("Apple_UFS");
+ if ( astring ) {
+ matching->setObject("Content", astring);
+ astring->release();
+ }
+ }
+
+ if( true && matching) {
+ OSSerialize * s = OSSerialize::withCapacity( 5 );
+
+ if( matching->serialize( s )) {
+ IOLog( "Waiting on %s\n", s->text() );
+ s->release();
+ }
+ }
+
+ do {
+ t.tv_sec = ROOTDEVICETIMEOUT;
+ t.tv_nsec = 0;
+ matching->retain();
+ service = IOService::waitForService( matching, &t );
+ if( (!service) || (mountAttempts == 10)) {
+ PE_display_icon( 0, "noroot");
+ IOLog( "Still waiting for root device\n" );
+
+ if( !debugInfoPrintedOnce) {
+ debugInfoPrintedOnce = true;
+ if( gIOKitDebug & kIOLogDTree) {
+ IOLog("\nDT plane:\n");
+ IOPrintPlane( gIODTPlane );
+ }
+ if( gIOKitDebug & kIOLogServiceTree) {
+ IOLog("\nService plane:\n");
+ IOPrintPlane( gIOServicePlane );
+ }
+ if( gIOKitDebug & kIOLogMemory)
+ IOPrintMemory();
+ }
}
- if (match) {
- match->release();
- }
-
- return found;
-}
-
-boolean_t
-IOCatalogueMatchingDriversPresent( const char * property )
-{
- OSDictionary * dict = NULL;
- OSOrderedSet * set = NULL;
- SInt32 generationCount = 0;
- boolean_t found = false;
-
- do {
- dict = OSDictionary::withCapacity(1);
- if (!dict) {
- continue;
- }
- dict->setObject( property, kOSBooleanTrue );
- set = gIOCatalogue->findDrivers( dict, &generationCount );
- if (set && (set->getCount() > 0)) {
- found = true;
- }
- } while (false);
-
- if (dict) {
- dict->release();
- }
- if (set) {
- set->release();
- }
-
- return found;
-}
-
-OSDictionary *
-IOBSDNameMatching( const char * name )
-{
- OSDictionary * dict;
- const OSSymbol * str = NULL;
-
- do {
- dict = IOService::serviceMatching( gIOServiceKey );
- if (!dict) {
- continue;
- }
- str = OSSymbol::withCString( name );
- if (!str) {
- continue;
- }
- dict->setObject( kIOBSDNameKey, (OSObject *) str );
- str->release();
-
- return dict;
- } while (false);
-
- if (dict) {
- dict->release();
- }
- if (str) {
- str->release();
- }
-
- return NULL;
-}
-
-OSDictionary *
-IOUUIDMatching( void )
-{
- return IOService::resourceMatching( "boot-uuid-media" );
-}
-
-OSDictionary *
-IONetworkNamePrefixMatching( const char * prefix )
-{
- OSDictionary * matching;
- OSDictionary * propDict = NULL;
- const OSSymbol * str = NULL;
- char networkType[128];
-
- do {
- matching = IOService::serviceMatching( "IONetworkInterface" );
- if (matching == NULL) {
- continue;
- }
-
- propDict = OSDictionary::withCapacity(1);
- if (propDict == NULL) {
- continue;
- }
-
- str = OSSymbol::withCString( prefix );
- if (str == NULL) {
- continue;
- }
-
- propDict->setObject( "IOInterfaceNamePrefix", (OSObject *) str );
- str->release();
- str = NULL;
-
- // see if we're contrained to netroot off of specific network type
- if (PE_parse_boot_argn( "network-type", networkType, 128 )) {
- str = OSSymbol::withCString( networkType );
- if (str) {
- propDict->setObject( "IONetworkRootType", str);
- str->release();
- str = NULL;
- }
- }
-
- if (matching->setObject( gIOPropertyMatchKey,
- (OSObject *) propDict ) != true) {
- continue;
- }
-
- propDict->release();
- propDict = NULL;
-
- return matching;
- } while (false);
-
- if (matching) {
- matching->release();
- }
- if (propDict) {
- propDict->release();
- }
- if (str) {
- str->release();
- }
-
- return NULL;
-}
-
-static bool
-IORegisterNetworkInterface( IOService * netif )
-{
- // A network interface is typically named and registered
- // with BSD after receiving a request from a user space
- // "namer". However, for cases when the system needs to
- // root from the network, this registration task must be
- // done inside the kernel and completed before the root
- // device is handed to BSD.
-
- IOService * stack;
- OSNumber * zero = NULL;
- OSString * path = NULL;
- OSDictionary * dict = NULL;
- char * pathBuf = NULL;
- int len;
- enum { kMaxPathLen = 512 };
-
- do {
- stack = IOService::waitForService(
- IOService::serviceMatching("IONetworkStack"));
- if (stack == NULL) {
- break;
- }
-
- dict = OSDictionary::withCapacity(3);
- if (dict == NULL) {
- break;
- }
-
- zero = OSNumber::withNumber((UInt64) 0, 32);
- if (zero == NULL) {
- break;
- }
-
- pathBuf = (char *) IOMalloc( kMaxPathLen );
- if (pathBuf == NULL) {
- break;
- }
-
- len = kMaxPathLen;
- if (netif->getPath( pathBuf, &len, gIOServicePlane )
- == false) {
- break;
- }
-
- path = OSString::withCStringNoCopy( pathBuf );
- if (path == NULL) {
- break;
- }
-
- dict->setObject( "IOInterfaceUnit", zero );
- dict->setObject( kIOPathMatchKey, path );
-
- stack->setProperties( dict );
- }while (false);
-
- if (zero) {
- zero->release();
- }
- if (path) {
- path->release();
- }
- if (dict) {
- dict->release();
- }
- if (pathBuf) {
- IOFree(pathBuf, kMaxPathLen);
- }
-
- return netif->getProperty( kIOBSDNameKey ) != NULL;
-}
-
-OSDictionary *
-IOOFPathMatching( const char * path, char * buf, int maxLen )
-{
- OSDictionary * matching = NULL;
- OSString * str;
- char * comp;
- int len;
-
- do {
- len = strlen( kIODeviceTreePlane ":" );
- maxLen -= len;
- if (maxLen <= 0) {
- continue;
- }
-
- strlcpy( buf, kIODeviceTreePlane ":", len + 1 );
- comp = buf + len;
-
- len = strlen( path );
- maxLen -= len;
- if (maxLen <= 0) {
- continue;
- }
- strlcpy( comp, path, len + 1 );
-
- matching = OSDictionary::withCapacity( 1 );
- if (!matching) {
- continue;
- }
-
- str = OSString::withCString( buf );
- if (!str) {
- continue;
- }
- matching->setObject( kIOPathMatchKey, str );
- str->release();
-
- return matching;
- } while (false);
-
- if (matching) {
- matching->release();
- }
-
- return NULL;
-}
-
-static int didRam = 0;
-enum { kMaxPathBuf = 512, kMaxBootVar = 128 };
-
-kern_return_t
-IOFindBSDRoot( char * rootName, unsigned int rootNameSize,
- dev_t * root, u_int32_t * oflags )
-{
- mach_timespec_t t;
- IOService * service;
- IORegistryEntry * regEntry;
- OSDictionary * matching = NULL;
- OSString * iostr;
- OSNumber * off;
- OSData * data = NULL;
-
- UInt32 flags = 0;
- int mnr, mjr;
- const char * mediaProperty = NULL;
- char * rdBootVar;
- char * str;
- const char * look = NULL;
- int len;
- bool debugInfoPrintedOnce = false;
- bool needNetworkKexts = false;
- const char * uuidStr = NULL;
-
- static int mountAttempts = 0;
-
- int xchar, dchar;
-
- // stall here for anyone matching on the IOBSD resource to finish (filesystems)
- matching = IOService::serviceMatching(gIOResourcesKey);
- assert(matching);
- matching->setObject(gIOResourceMatchedKey, gIOBSDKey);
-
- if ((service = IOService::waitForMatchingService(matching, 30ULL * kSecondScale))) {
- service->release();
- } else {
- IOLog("!BSD\n");
- }
- matching->release();
- matching = NULL;
-
- if (mountAttempts++) {
- IOLog("mount(%d) failed\n", mountAttempts);
- IOSleep( 5 * 1000 );
- }
-
- str = (char *) IOMalloc( kMaxPathBuf + kMaxBootVar );
- if (!str) {
- return kIOReturnNoMemory;
- }
- rdBootVar = str + kMaxPathBuf;
-
- if (!PE_parse_boot_argn("rd", rdBootVar, kMaxBootVar )
- && !PE_parse_boot_argn("rootdev", rdBootVar, kMaxBootVar )) {
- rdBootVar[0] = 0;
- }
-
- do {
- if ((regEntry = IORegistryEntry::fromPath( "/chosen", gIODTPlane ))) {
- di_root_ramfile(regEntry);
- data = OSDynamicCast(OSData, regEntry->getProperty( "root-matching" ));
- if (data) {
- matching = OSDynamicCast(OSDictionary, OSUnserializeXML((char *)data->getBytesNoCopy()));
- if (matching) {
- continue;
- }
- }
-
- data = (OSData *) regEntry->getProperty( "boot-uuid" );
- if (data) {
- uuidStr = (const char*)data->getBytesNoCopy();
- OSString *uuidString = OSString::withCString( uuidStr );
-
- // match the boot-args boot-uuid processing below
- if (uuidString) {
- IOLog("rooting via boot-uuid from /chosen: %s\n", uuidStr);
- IOService::publishResource( "boot-uuid", uuidString );
- uuidString->release();
- matching = IOUUIDMatching();
- mediaProperty = "boot-uuid-media";
- regEntry->release();
- continue;
- } else {
- uuidStr = NULL;
- }
- }
- regEntry->release();
- }
- } while (false);
-
-//
-// See if we have a RAMDisk property in /chosen/memory-map. If so, make it into a device.
-// It will become /dev/mdx, where x is 0-f.
-//
-
- if (!didRam) { /* Have we already build this ram disk? */
- didRam = 1; /* Remember we did this */
- if ((regEntry = IORegistryEntry::fromPath( "/chosen/memory-map", gIODTPlane ))) { /* Find the map node */
- data = (OSData *)regEntry->getProperty("RAMDisk"); /* Find the ram disk, if there */
- if (data) { /* We found one */
- uintptr_t *ramdParms;
- ramdParms = (uintptr_t *)data->getBytesNoCopy(); /* Point to the ram disk base and size */
- (void)mdevadd(-1, ml_static_ptovirt(ramdParms[0]) >> 12, ramdParms[1] >> 12, 0); /* Initialize it and pass back the device number */
- }
- regEntry->release(); /* Toss the entry */
- }
- }
-
-//
-// Now check if we are trying to root on a memory device
-//
-
- if ((rdBootVar[0] == 'm') && (rdBootVar[1] == 'd') && (rdBootVar[3] == 0)) {
- dchar = xchar = rdBootVar[2]; /* Get the actual device */
- if ((xchar >= '0') && (xchar <= '9')) {
- xchar = xchar - '0'; /* If digit, convert */
- } else {
- xchar = xchar & ~' '; /* Fold to upper case */
- if ((xchar >= 'A') && (xchar <= 'F')) { /* Is this a valid digit? */
- xchar = (xchar & 0xF) + 9; /* Convert the hex digit */
- dchar = dchar | ' '; /* Fold to lower case */
- } else {
- xchar = -1; /* Show bogus */
- }
- }
- if (xchar >= 0) { /* Do we have a valid memory device name? */
- *root = mdevlookup(xchar); /* Find the device number */
- if (*root >= 0) { /* Did we find one? */
- rootName[0] = 'm'; /* Build root name */
- rootName[1] = 'd'; /* Build root name */
- rootName[2] = dchar; /* Build root name */
- rootName[3] = 0; /* Build root name */
- IOLog("BSD root: %s, major %d, minor %d\n", rootName, major(*root), minor(*root));
- *oflags = 0; /* Show that this is not network */
-
-#if CONFIG_KDP_INTERACTIVE_DEBUGGING
- /* retrieve final ramdisk range and initialize KDP variables */
- if (mdevgetrange(xchar, &kdp_core_ramdisk_addr, &kdp_core_ramdisk_size) != 0) {
- IOLog("Unable to retrieve range for root memory device %d\n", xchar);
- kdp_core_ramdisk_addr = 0;
- kdp_core_ramdisk_size = 0;
- }
-#endif
-
- goto iofrootx; /* Join common exit... */
- }
- panic("IOFindBSDRoot: specified root memory device, %s, has not been configured\n", rdBootVar); /* Not there */
- }
- }
-
- if ((!matching) && rdBootVar[0]) {
- // by BSD name
- look = rdBootVar;
- if (look[0] == '*') {
- look++;
- }
-
- if (strncmp( look, "en", strlen( "en" )) == 0) {
- matching = IONetworkNamePrefixMatching( "en" );
- needNetworkKexts = true;
- } else if (strncmp( look, "uuid", strlen( "uuid" )) == 0) {
- char *uuid;
- OSString *uuidString;
-
- uuid = (char *)IOMalloc( kMaxBootVar );
-
- if (uuid) {
- if (!PE_parse_boot_argn( "boot-uuid", uuid, kMaxBootVar )) {
- panic( "rd=uuid but no boot-uuid=<value> specified" );
- }
- uuidString = OSString::withCString( uuid );
- if (uuidString) {
- IOService::publishResource( "boot-uuid", uuidString );
- uuidString->release();
- IOLog( "\nWaiting for boot volume with UUID %s\n", uuid );
- matching = IOUUIDMatching();
- mediaProperty = "boot-uuid-media";
- }
- IOFree( uuid, kMaxBootVar );
- }
- } else {
- matching = IOBSDNameMatching( look );
- }
- }
-
- if (!matching) {
- OSString * astring;
- // Match any HFS media
-
- matching = IOService::serviceMatching( "IOMedia" );
- astring = OSString::withCStringNoCopy("Apple_HFS");
- if (astring) {
- matching->setObject("Content", astring);
- astring->release();
- }
- }
-
- if (gIOKitDebug & kIOWaitQuietBeforeRoot) {
- IOLog( "Waiting for matching to complete\n" );
- IOService::getPlatform()->waitQuiet();
- }
-
- if (true && matching) {
- OSSerialize * s = OSSerialize::withCapacity( 5 );
-
- if (matching->serialize( s )) {
- IOLog( "Waiting on %s\n", s->text());
- s->release();
- }
- }
-
- char namep[8];
- if (needNetworkKexts
- || PE_parse_boot_argn("-s", namep, sizeof(namep))) {
- IOService::startDeferredMatches();
- }
-
- do {
- t.tv_sec = ROOTDEVICETIMEOUT;
- t.tv_nsec = 0;
- matching->retain();
- service = IOService::waitForService( matching, &t );
- if ((!service) || (mountAttempts == 10)) {
- PE_display_icon( 0, "noroot");
- IOLog( "Still waiting for root device\n" );
-
- if (!debugInfoPrintedOnce) {
- debugInfoPrintedOnce = true;
- if (gIOKitDebug & kIOLogDTree) {
- IOLog("\nDT plane:\n");
- IOPrintPlane( gIODTPlane );
- }
- if (gIOKitDebug & kIOLogServiceTree) {
- IOLog("\nService plane:\n");
- IOPrintPlane( gIOServicePlane );
- }
- if (gIOKitDebug & kIOLogMemory) {
- IOPrintMemory();
- }
- }
- }
- } while (!service);
- matching->release();
-
- if (service && mediaProperty) {
- service = (IOService *)service->getProperty(mediaProperty);
- }
-
- mjr = 0;
- mnr = 0;
-
- // If the IOService we matched to is a subclass of IONetworkInterface,
- // then make sure it has been registered with BSD and has a BSD name
- // assigned.
-
- if (service
- && service->metaCast( "IONetworkInterface" )
- && !IORegisterNetworkInterface( service )) {
- service = NULL;
- }
-
- if (service) {
- len = kMaxPathBuf;
- service->getPath( str, &len, gIOServicePlane );
- IOLog( "Got boot device = %s\n", str );
-
- iostr = (OSString *) service->getProperty( kIOBSDNameKey );
- if (iostr) {
- strlcpy( rootName, iostr->getCStringNoCopy(), rootNameSize );
- }
- off = (OSNumber *) service->getProperty( kIOBSDMajorKey );
- if (off) {
- mjr = off->unsigned32BitValue();
- }
- off = (OSNumber *) service->getProperty( kIOBSDMinorKey );
- if (off) {
- mnr = off->unsigned32BitValue();
- }
-
- if (service->metaCast( "IONetworkInterface" )) {
- flags |= 1;
- }
- } else {
- IOLog( "Wait for root failed\n" );
- strlcpy( rootName, "en0", rootNameSize );
- flags |= 1;
- }
-
- IOLog( "BSD root: %s", rootName );
- if (mjr) {
- IOLog(", major %d, minor %d\n", mjr, mnr );
- } else {
- IOLog("\n");
- }
-
- *root = makedev( mjr, mnr );
- *oflags = flags;
-
- IOFree( str, kMaxPathBuf + kMaxBootVar );
-
-iofrootx:
- if ((gIOKitDebug & (kIOLogDTree | kIOLogServiceTree | kIOLogMemory)) && !debugInfoPrintedOnce) {
- IOService::getPlatform()->waitQuiet();
- if (gIOKitDebug & kIOLogDTree) {
- IOLog("\nDT plane:\n");
- IOPrintPlane( gIODTPlane );
- }
- if (gIOKitDebug & kIOLogServiceTree) {
- IOLog("\nService plane:\n");
- IOPrintPlane( gIOServicePlane );
- }
- if (gIOKitDebug & kIOLogMemory) {
- IOPrintMemory();
- }
- }
-
- return kIOReturnSuccess;
-}
-
-bool
-IORamDiskBSDRoot(void)
-{
- char rdBootVar[kMaxBootVar];
- if (PE_parse_boot_argn("rd", rdBootVar, kMaxBootVar )
- || PE_parse_boot_argn("rootdev", rdBootVar, kMaxBootVar )) {
- if ((rdBootVar[0] == 'm') && (rdBootVar[1] == 'd') && (rdBootVar[3] == 0)) {
- return true;
- }
- }
- return false;
-}
-
-void
-IOSecureBSDRoot(const char * rootName)
-{
-#if CONFIG_EMBEDDED
- IOReturn result;
- IOPlatformExpert *pe;
- OSDictionary *matching;
- const OSSymbol *functionName = OSSymbol::withCStringNoCopy("SecureRootName");
-
- matching = IOService::serviceMatching("IOPlatformExpert");
- assert(matching);
- pe = (IOPlatformExpert *) IOService::waitForMatchingService(matching, 30ULL * kSecondScale);
- matching->release();
- assert(pe);
- // Returns kIOReturnNotPrivileged is the root device is not secure.
- // Returns kIOReturnUnsupported if "SecureRootName" is not implemented.
- result = pe->callPlatformFunction(functionName, false, (void *)rootName, (void *)NULL, (void *)NULL, (void *)NULL);
- functionName->release();
- OSSafeReleaseNULL(pe);
-
- if (result == kIOReturnNotPrivileged) {
- mdevremoveall();
- }
-
-#endif // CONFIG_EMBEDDED
-}
-
-void *
-IOBSDRegistryEntryForDeviceTree(char * path)
-{
- return IORegistryEntry::fromPath(path, gIODTPlane);
-}
-
-void
-IOBSDRegistryEntryRelease(void * entry)
-{
- IORegistryEntry * regEntry = (IORegistryEntry *)entry;
-
- if (regEntry) {
- regEntry->release();
- }
- return;
-}
-
-const void *
-IOBSDRegistryEntryGetData(void * entry, char * property_name,
- int * packet_length)
-{
- OSData * data;
- IORegistryEntry * regEntry = (IORegistryEntry *)entry;
-
- data = (OSData *) regEntry->getProperty(property_name);
- if (data) {
- *packet_length = data->getLength();
- return data->getBytesNoCopy();
- }
- return NULL;
-}
-
-kern_return_t
-IOBSDGetPlatformUUID( uuid_t uuid, mach_timespec_t timeout )
-{
- IOService * resources;
- OSString * string;
-
- resources = IOService::waitForService( IOService::resourceMatching( kIOPlatformUUIDKey ), (timeout.tv_sec || timeout.tv_nsec) ? &timeout : NULL );
- if (resources == NULL) {
- return KERN_OPERATION_TIMED_OUT;
- }
-
- string = (OSString *) IOService::getPlatform()->getProvider()->getProperty( kIOPlatformUUIDKey );
- if (string == NULL) {
- return KERN_NOT_SUPPORTED;
- }
-
- uuid_parse( string->getCStringNoCopy(), uuid );
-
- return KERN_SUCCESS;
-}
+ } while( !service);
+ matching->release();
+
+ major = 0;
+ minor = 0;
+
+ // If the IOService we matched to is a subclass of IONetworkInterface,
+ // then make sure it has been registered with BSD and has a BSD name
+ // assigned.
+
+ if ( service
+ && service->metaCast( "IONetworkInterface" )
+ && !IORegisterNetworkInterface( service ) )
+ {
+ service = 0;
+ }
+
+ if( service) {
+
+ len = kMaxPathBuf;
+ service->getPath( str, &len, gIOServicePlane );
+ IOLog( "Got boot device = %s\n", str );
+
+ iostr = (OSString *) service->getProperty( kIOBSDNameKey );
+ if( iostr)
+ strcpy( rootName, iostr->getCStringNoCopy() );
+ off = (OSNumber *) service->getProperty( kIOBSDMajorKey );
+ if( off)
+ major = off->unsigned32BitValue();
+ off = (OSNumber *) service->getProperty( kIOBSDMinorKey );
+ if( off)
+ minor = off->unsigned32BitValue();
+
+ if( service->metaCast( "IONetworkInterface" ))
+ flags |= 1;
+
+ } else {
+
+ IOLog( "Wait for root failed\n" );
+ strcpy( rootName, "en0");
+ flags |= 1;
+ }
+
+ IOLog( "BSD root: %s", rootName );
+ if( major)
+ IOLog(", major %d, minor %d\n", major, minor );
+ else
+ IOLog("\n");
+
+ *root = makedev( major, minor );
+ *oflags = flags;
+
+ IOFree( str, kMaxPathBuf + kMaxBootVar );
+
+ if( (gIOKitDebug & (kIOLogDTree | kIOLogServiceTree | kIOLogMemory)) && !debugInfoPrintedOnce) {
+
+ IOService::getPlatform()->waitQuiet();
+ if( gIOKitDebug & kIOLogDTree) {
+ IOLog("\nDT plane:\n");
+ IOPrintPlane( gIODTPlane );
+ }
+ if( gIOKitDebug & kIOLogServiceTree) {
+ IOLog("\nService plane:\n");
+ IOPrintPlane( gIOServicePlane );
+ }
+ if( gIOKitDebug & kIOLogMemory)
+ IOPrintMemory();
+ }
+
+ return( kIOReturnSuccess );
+}
+
} /* extern "C" */
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <sys/conf.h>
-#include <sys/vnode.h>
-#include <sys/vnode_internal.h>
-#include <sys/fcntl.h>
-#include <IOKit/IOPolledInterface.h>
-#include <IOKit/IOBufferMemoryDescriptor.h>
-
-IOPolledFileIOVars * gIOPolledCoreFileVars;
-kern_return_t gIOPolledCoreFileOpenRet = kIOReturnNotReady;
-IOPolledCoreFileMode_t gIOPolledCoreFileMode = kIOPolledCoreFileModeNotInitialized;
-
-#if IOPOLLED_COREFILE
-
-#if defined(XNU_TARGET_OS_BRIDGE)
-// On bridgeOS allocate a 150MB corefile and leave 150MB free
-#define kIOCoreDumpSize 150ULL*1024ULL*1024ULL
-#define kIOCoreDumpFreeSize 150ULL*1024ULL*1024ULL
-
-#elif CONFIG_EMBEDDED /* defined(XNU_TARGET_OS_BRIDGE) */
-// On embedded devices with >3GB DRAM we allocate a 500MB corefile
-// otherwise allocate a 350MB corefile. Leave 350 MB free
-
-#define kIOCoreDumpMinSize 350ULL*1024ULL*1024ULL
-#define kIOCoreDumpLargeSize 500ULL*1024ULL*1024ULL
-
-#define kIOCoreDumpFreeSize 350ULL*1024ULL*1024ULL
-
-#else /* defined(XNU_TARGET_OS_BRIDGE) */
-// on macOS devices allocate a corefile sized at 1GB / 32GB of DRAM,
-// fallback to a 1GB corefile and leave at least 1GB free
-#define kIOCoreDumpMinSize 1024ULL*1024ULL*1024ULL
-#define kIOCoreDumpIncrementalSize 1024ULL*1024ULL*1024ULL
-
-#define kIOCoreDumpFreeSize 1024ULL*1024ULL*1024ULL
-
-// on older macOS devices we allocate a 1MB file at boot
-// to store a panic time stackshot
-#define kIOStackshotFileSize 1024ULL*1024ULL
-
-#endif /* defined(XNU_TARGET_OS_BRIDGE) */
-
-static IOPolledCoreFileMode_t
-GetCoreFileMode()
-{
- if (on_device_corefile_enabled()) {
- return kIOPolledCoreFileModeCoredump;
- } else if (panic_stackshot_to_disk_enabled()) {
- return kIOPolledCoreFileModeStackshot;
- } else {
- return kIOPolledCoreFileModeDisabled;
- }
-}
-
-static void
-IOCoreFileGetSize(uint64_t *ideal_size, uint64_t *fallback_size, uint64_t *free_space_to_leave, IOPolledCoreFileMode_t mode)
-{
- unsigned int requested_corefile_size = 0;
-
- *ideal_size = *fallback_size = *free_space_to_leave = 0;
-
-#if defined(XNU_TARGET_OS_BRIDGE)
-#pragma unused(mode)
- *ideal_size = *fallback_size = kIOCoreDumpSize;
- *free_space_to_leave = kIOCoreDumpFreeSize;
-#elif CONFIG_EMBEDDED /* defined(XNU_TARGET_OS_BRIDGE) */
-#pragma unused(mode)
- *ideal_size = *fallback_size = kIOCoreDumpMinSize;
-
- if (max_mem > (3 * 1024ULL * 1024ULL * 1024ULL)) {
- *ideal_size = kIOCoreDumpLargeSize;
- }
-
- *free_space_to_leave = kIOCoreDumpFreeSize;
-#else /* defined(XNU_TARGET_OS_BRIDGE) */
- if (mode == kIOPolledCoreFileModeCoredump) {
- *ideal_size = *fallback_size = kIOCoreDumpMinSize;
- if (kIOCoreDumpIncrementalSize != 0 && max_mem > (32 * 1024ULL * 1024ULL * 1024ULL)) {
- *ideal_size = ((ROUNDUP(max_mem, (32 * 1024ULL * 1024ULL * 1024ULL)) / (32 * 1024ULL * 1024ULL * 1024ULL)) * kIOCoreDumpIncrementalSize);
- }
- *free_space_to_leave = kIOCoreDumpFreeSize;
- } else if (mode == kIOPolledCoreFileModeStackshot) {
- *ideal_size = *fallback_size = *free_space_to_leave = kIOStackshotFileSize;
- }
-#endif /* defined(XNU_TARGET_OS_BRIDGE) */
- // If a custom size was requested, override the ideal and requested sizes
- if (PE_parse_boot_argn("corefile_size_mb", &requested_corefile_size, sizeof(requested_corefile_size))) {
- IOLog("Boot-args specify %d MB kernel corefile\n", requested_corefile_size);
-
- *ideal_size = *fallback_size = (requested_corefile_size * 1024ULL * 1024ULL);
- }
-
- return;
-}
-
-static void
-IOOpenPolledCoreFile(thread_call_param_t __unused, thread_call_param_t corefilename)
-{
- assert(corefilename != NULL);
-
- IOReturn err;
- char *filename = (char *) corefilename;
- uint64_t corefile_size_bytes = 0, corefile_fallback_size_bytes = 0, free_space_to_leave_bytes = 0;
- IOPolledCoreFileMode_t mode_to_init = GetCoreFileMode();
-
- if (gIOPolledCoreFileVars) {
- return;
- }
- if (!IOPolledInterface::gMetaClass.getInstanceCount()) {
- return;
- }
-
- if (mode_to_init == kIOPolledCoreFileModeDisabled) {
- gIOPolledCoreFileMode = kIOPolledCoreFileModeDisabled;
- return;
- }
-
- // We'll overwrite this once we open the file, we update this to mark that we have made
- // it past initialization
- gIOPolledCoreFileMode = kIOPolledCoreFileModeClosed;
-
- IOCoreFileGetSize(&corefile_size_bytes, &corefile_fallback_size_bytes, &free_space_to_leave_bytes, mode_to_init);
-
- do {
- err = IOPolledFileOpen(filename, kIOPolledFileCreate, corefile_size_bytes, free_space_to_leave_bytes,
- NULL, 0, &gIOPolledCoreFileVars, NULL, NULL, NULL);
- if (kIOReturnSuccess == err) {
- break;
- } else if (kIOReturnNoSpace == err) {
- IOLog("Failed to open corefile of size %llu MB (low disk space)",
- (corefile_size_bytes / (1024ULL * 1024ULL)));
- if (corefile_size_bytes == corefile_fallback_size_bytes) {
- gIOPolledCoreFileOpenRet = err;
- return;
- }
- } else {
- IOLog("Failed to open corefile of size %llu MB (returned error 0x%x)\n",
- (corefile_size_bytes / (1024ULL * 1024ULL)), err);
- gIOPolledCoreFileOpenRet = err;
- return;
- }
-
- err = IOPolledFileOpen(filename, kIOPolledFileCreate, corefile_fallback_size_bytes, free_space_to_leave_bytes,
- NULL, 0, &gIOPolledCoreFileVars, NULL, NULL, NULL);
- if (kIOReturnSuccess != err) {
- IOLog("Failed to open corefile of size %llu MB (returned error 0x%x)\n",
- (corefile_fallback_size_bytes / (1024ULL * 1024ULL)), err);
- gIOPolledCoreFileOpenRet = err;
- return;
- }
- } while (false);
-
- gIOPolledCoreFileOpenRet = IOPolledFilePollersSetup(gIOPolledCoreFileVars, kIOPolledPreflightCoreDumpState);
- if (kIOReturnSuccess != gIOPolledCoreFileOpenRet) {
- IOPolledFileClose(&gIOPolledCoreFileVars, 0, NULL, 0, 0, 0);
- IOLog("IOPolledFilePollersSetup for corefile failed with error: 0x%x\n", err);
- } else {
- IOLog("Opened corefile of size %llu MB\n", (corefile_size_bytes / (1024ULL * 1024ULL)));
- gIOPolledCoreFileMode = mode_to_init;
- }
-
- return;
-}
-
-static void
-IOClosePolledCoreFile(void)
-{
- gIOPolledCoreFileOpenRet = kIOReturnNotOpen;
- gIOPolledCoreFileMode = kIOPolledCoreFileModeClosed;
- IOPolledFilePollersClose(gIOPolledCoreFileVars, kIOPolledPostflightCoreDumpState);
- IOPolledFileClose(&gIOPolledCoreFileVars, 0, NULL, 0, 0, 0);
-}
-
-#endif /* IOPOLLED_COREFILE */
-
-extern "C" void
-IOBSDMountChange(struct mount * mp, uint32_t op)
-{
-#if IOPOLLED_COREFILE
- uint64_t flags;
- char path[128];
- int pathLen;
- vnode_t vn;
- int result;
-
- switch (op) {
- case kIOMountChangeMount:
- case kIOMountChangeDidResize:
-
- if (gIOPolledCoreFileVars) {
- break;
- }
- flags = vfs_flags(mp);
- if (MNT_RDONLY & flags) {
- break;
- }
- if (!(MNT_LOCAL & flags)) {
- break;
- }
-
- vn = vfs_vnodecovered(mp);
- if (!vn) {
- break;
- }
- pathLen = sizeof(path);
- result = vn_getpath(vn, &path[0], &pathLen);
- vnode_put(vn);
- if (0 != result) {
- break;
- }
- if (!pathLen) {
- break;
- }
-#if defined(XNU_TARGET_OS_BRIDGE)
- // on bridgeOS systems we put the core in /private/var/internal. We don't
- // want to match with /private/var because /private/var/internal is often mounted
- // over /private/var
- if ((pathLen - 1) < (int) strlen("/private/var/internal")) {
- break;
- }
-#endif
- if (0 != strncmp(path, kIOCoreDumpPath, pathLen - 1)) {
- break;
- }
-
- thread_call_enter1(corefile_open_call, (void *) kIOCoreDumpPath);
- break;
-
- case kIOMountChangeUnmount:
- case kIOMountChangeWillResize:
- if (gIOPolledCoreFileVars && (mp == kern_file_mount(gIOPolledCoreFileVars->fileRef))) {
- thread_call_cancel_wait(corefile_open_call);
- IOClosePolledCoreFile();
- }
- break;
- }
-#endif /* IOPOLLED_COREFILE */
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-extern "C" boolean_t
-IOTaskHasEntitlement(task_t task, const char * entitlement)
-{
- OSObject * obj;
- obj = IOUserClient::copyClientEntitlement(task, entitlement);
- if (!obj) {
- return false;
- }
- obj->release();
- return obj != kOSBooleanFalse;
-}