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--- xnu/xnu-12377.101.15/iokit/bsddev/IOKitBSDInit.cpp
+++ xnu/xnu-517.12.7/iokit/bsddev/IOKitBSDInit.cpp
@@ -1,1882 +1,699 @@
/*
- * Copyright (c) 1998-2021 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/IONVRAM.h>
#include <IOKit/IOPlatformExpert.h>
-#include <IOKit/IOUserClient.h>
-#include <libkern/c++/OSAllocation.h>
+
+#include <sys/disklabel.h>
extern "C" {
-#include <libkern/amfi/amfi.h>
-#include <sys/codesign.h>
-#include <sys/code_signing.h>
-#include <vm/pmap.h>
-#include <vm/vm_map.h>
+
#include <pexpert/pexpert.h>
#include <kern/clock.h>
-#if CONFIG_KDP_INTERACTIVE_DEBUGGING
-#include <kern/debug.h>
-#endif
-#include <mach/machine.h>
-#include <uuid/uuid.h>
-#include <sys/vnode_internal.h>
-#include <sys/mount.h>
-#include <corecrypto/ccsha2.h>
-#include <kdp/sk_core.h>
-#include <pexpert/device_tree.h>
-#include <kern/startup.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);
+#define ROOTDEVICETIMEOUT 60
+
+extern dev_t mdevadd(int devid, ppnum_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);
-extern int IODTGetDefault(const char *key, void *infoAddr, unsigned int infoSize);
-extern boolean_t cpuid_vmm_present(void);
-
-#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"
-#elif defined(XNU_TARGET_OS_OSX)
-#define kIOCoreDumpPath "/System/Volumes/VM/kernelcore"
-#else
-#define kIOCoreDumpPath "/private/var/vm/kernelcore"
-#endif
-
-#define kIOCoreDumpPrebootPath "/private/preboot/kernelcore"
-
-#define SYSTEM_NVRAM_PREFIX "40A0DDD2-77F8-4392-B4A3-1E7304206516:"
-
-#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;
-
-/*
- * A callback to indicate that the polled-mode corefile is now available.
- */
-extern kern_return_t kdp_core_polled_io_polled_file_available(IOCoreFileAccessCallback access_data, void *access_context, void *recipient_context);
-
-/*
- * A callback to indicate that the polled-mode corefile is no longer available.
- */
-extern kern_return_t kdp_core_polled_io_polled_file_unavailable(void);
-#endif
-
-#if IOPOLLED_COREFILE
-static void IOOpenPolledCoreFile(thread_call_param_t __unused, thread_call_param_t corefilename);
-static void IOResolveCoreFilePath();
-
-thread_call_t corefile_open_call = NULL;
-SECURITY_READ_ONLY_LATE(const char*) kdp_corefile_path = kIOCoreDumpPath;
-#endif
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 );
- } else {
- IOService::getResourceService()->removeProperty( property );
- }
-}
-
-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;
+ 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( void )
+{
+ 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 Hint", (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;
+ long lun = -1;
+ char c;
+ const char * partitionSep = NULL;
+
+ // 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 );
+ partitionSep = look;
+ c = '@';
+ } else if( c == '@') {
+ int diff = -1;
+
+ unit = strtol( look + 1, 0, 16 );
+
+ diff = (int)partitionSep - (int)look;
+ if ( diff > 0 ) {
+
+ for ( ; diff > 0; diff-- )
+ {
+ if( look[diff] == ',' )
+ {
+ lun = strtol ( &look[diff + 1], 0, 16 );
+ break;
+ }
+ }
+ }
+
+ 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,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;
+ }
+
+ if ( lun != -1 )
+ {
+ sprintf ( comp, "/@%lx,%lx:%ld';}", unit, lun, partition );
+ }
+ else
+ {
+ 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 ));
+
+}
+
+IOService * IOFindMatchingChild( IOService * service )
+{
+ // find a matching child service
+ IOService * child = 0;
+ OSIterator * iter = service->getClientIterator();
+ if ( iter ) {
+ while( ( child = (IOService *) iter->getNextObject() ) ) {
+ OSDictionary * dict = OSDictionary::withCapacity( 1 );
+ if( dict == 0 ) {
+ iter->release();
+ return 0;
+ }
+ const OSSymbol * str = OSSymbol::withCString( "Apple_HFS" );
+ if( str == 0 ) {
+ dict->release();
+ iter->release();
+ return 0;
+ }
+ dict->setObject( "Content", (OSObject *)str );
+ str->release();
+ if ( child->compareProperty( dict, "Content" ) ) {
+ dict->release();
+ break;
+ }
+ dict->release();
+ IOService * subchild = IOFindMatchingChild( child );
+ if ( subchild ) {
+ child = subchild;
+ break;
+ }
+ }
+ iter->release();
+ }
+ return child;
+}
+
+static int didRam = 0;
+
+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 *ramdParms = 0;
+
+ UInt32 flags = 0;
+ int minor, major;
+ bool findHFSChild = false;
+ 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;
+
+ int xchar, dchar;
+
+
+ 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;
}
- match = IOService::waitForMatchingService( dict, timeout );
- if (match) {
- found = true;
+ if( (regEntry = IORegistryEntry::fromPath( "/options", gIODTPlane ))) {
+ data = (OSData *) regEntry->getProperty( "boot-file" );
+ regEntry->release();
+ if( data) continue;
}
- } while (false);
-
- if (dict) {
- dict->release();
- }
- 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;
+ } 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();
}
- 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 )
-{
- OSObject * obj;
- OSDictionary * result;
-
- obj = OSUnserialize(
- "{"
- "'IOProviderClass' = 'IOResources';"
- "'IOResourceMatch' = ('IOBSD', 'boot-uuid-media');"
- "}",
- NULL);
- result = OSDynamicCast(OSDictionary, obj);
- assert(result);
-
- return result;
-}
-
-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;
- OSDataAllocation<char> pathBuf;
- 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 = OSDataAllocation<char>( kMaxPathLen, OSAllocateMemory );
- if (!pathBuf) {
- break;
- }
-
- len = kMaxPathLen;
- if (netif->getPath( pathBuf.data(), &len, gIOServicePlane )
- == false) {
- break;
- }
-
- path = OSString::withCStringNoCopy(pathBuf.data());
- 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();
- }
-
- 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 = ((int) strlen( kIODeviceTreePlane ":" ));
- maxLen -= len;
- if (maxLen <= 0) {
- continue;
- }
-
- strlcpy( buf, kIODeviceTreePlane ":", len + 1 );
- comp = buf + len;
-
- len = ((int) strnlen( path, INT_MAX ));
- 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 };
-
-bool
-IOGetBootUUID(char *uuid)
-{
- IORegistryEntry *entry;
- OSData *uuid_data = NULL;
- bool result = false;
-
- if ((entry = IORegistryEntry::fromPath("/chosen", gIODTPlane))) {
- uuid_data = (OSData *)entry->getProperty("boot-uuid");
- if (uuid_data) {
- unsigned int length = uuid_data->getLength();
- if (length <= sizeof(uuid_string_t)) {
- /* ensure caller's buffer is fully initialized: */
- bzero(uuid, sizeof(uuid_string_t));
- /* copy the content of uuid_data->getBytesNoCopy() into uuid */
- memcpy(uuid, uuid_data->getBytesNoCopy(), length);
- /* guarantee nul-termination: */
- uuid[sizeof(uuid_string_t) - 1] = '\0';
- result = true;
- } else {
- uuid = NULL;
- }
- }
- OSSafeReleaseNULL(entry);
- }
- return result;
-}
-
-bool
-IOGetApfsPrebootUUID(char *uuid)
-{
- IORegistryEntry *entry;
- OSData *uuid_data = NULL;
- bool result = false;
-
- if ((entry = IORegistryEntry::fromPath("/chosen", gIODTPlane))) {
- uuid_data = (OSData *)entry->getProperty("apfs-preboot-uuid");
-
- if (uuid_data) {
- unsigned int length = uuid_data->getLength();
- if (length <= sizeof(uuid_string_t)) {
- /* ensure caller's buffer is fully initialized: */
- bzero(uuid, sizeof(uuid_string_t));
- /* copy the content of uuid_data->getBytesNoCopy() into uuid */
- memcpy(uuid, uuid_data->getBytesNoCopy(), length);
- /* guarantee nul-termination: */
- uuid[sizeof(uuid_string_t) - 1] = '\0';
- result = true;
- } else {
- uuid = NULL;
- }
- }
- OSSafeReleaseNULL(entry);
- }
- return result;
-}
-
-bool
-IOGetAssociatedApfsVolgroupUUID(char *uuid)
-{
- IORegistryEntry *entry;
- OSData *uuid_data = NULL;
- bool result = false;
-
- if ((entry = IORegistryEntry::fromPath("/chosen", gIODTPlane))) {
- uuid_data = (OSData *)entry->getProperty("associated-volume-group");
-
- if (uuid_data) {
- unsigned int length = uuid_data->getLength();
-
- if (length <= sizeof(uuid_string_t)) {
- /* ensure caller's buffer is fully initialized: */
- bzero(uuid, sizeof(uuid_string_t));
- /* copy the content of uuid_data->getBytesNoCopy() into uuid */
- memcpy(uuid, uuid_data->getBytesNoCopy(), length);
- /* guarantee nul-termination: */
- uuid[sizeof(uuid_string_t) - 1] = '\0';
- result = true;
- } else {
- uuid = NULL;
- }
- }
- OSSafeReleaseNULL(entry);
- }
- return result;
-}
-
-bool
-IOGetBootObjectsPath(char *path_prefix)
-{
- IORegistryEntry *entry;
- OSData *path_prefix_data = NULL;
- bool result = false;
-
- if ((entry = IORegistryEntry::fromPath("/chosen", gIODTPlane))) {
- path_prefix_data = (OSData *)entry->getProperty("boot-objects-path");
-
- if (path_prefix_data) {
- unsigned int length = path_prefix_data->getLength();
-
- if (length <= MAXPATHLEN) {
- /* ensure caller's buffer is fully initialized: */
- bzero(path_prefix, MAXPATHLEN);
- /* copy the content of path_prefix_data->getBytesNoCopy() into path_prefix */
- memcpy(path_prefix, path_prefix_data->getBytesNoCopy(), length);
- /* guarantee nul-termination: */
- path_prefix[MAXPATHLEN - 1] = '\0';
- result = true;
- } else {
- path_prefix = NULL;
- }
- }
- OSSafeReleaseNULL(entry);
- }
- return result;
-}
-
-
-bool
-IOGetBootManifestHash(char *hash_data, size_t *hash_data_size)
-{
- IORegistryEntry *entry = NULL;
- OSData *manifest_hash_data = NULL;
- bool result = false;
-
- if ((entry = IORegistryEntry::fromPath("/chosen", gIODTPlane))) {
- manifest_hash_data = (OSData *)entry->getProperty("boot-manifest-hash");
- if (manifest_hash_data) {
- unsigned int length = manifest_hash_data->getLength();
- /* hashed with SHA2-384 or SHA1, the boot manifest hash should be 48 Bytes or less */
- if ((length <= CCSHA384_OUTPUT_SIZE) && (*hash_data_size >= CCSHA384_OUTPUT_SIZE)) {
- /* ensure caller's buffer is fully initialized: */
- bzero(hash_data, CCSHA384_OUTPUT_SIZE);
- /* copy the content of manifest_hash_data->getBytesNoCopy() into hash_data */
- memcpy(hash_data, manifest_hash_data->getBytesNoCopy(), length);
- *hash_data_size = length;
- result = true;
- } else {
- hash_data = NULL;
- *hash_data_size = 0;
- }
- }
- OSSafeReleaseNULL(entry);
- }
-
- return result;
-}
-
-/*
- * Set NVRAM to boot into the right flavor of Recovery,
- * optionally passing a UUID of a volume that failed to boot.
- * If `reboot` is true, reboot immediately.
- *
- * Returns true if `mode` was understood, false otherwise.
- * (Does not return if `reboot` is true.)
- */
-boolean_t
-IOSetRecoveryBoot(bsd_bootfail_mode_t mode, uuid_t volume_uuid, boolean_t reboot)
-{
- IODTNVRAM *nvram = NULL;
- const OSSymbol *boot_command_sym = NULL;
- OSString *boot_command_recover = NULL;
-
- if (mode == BSD_BOOTFAIL_SEAL_BROKEN) {
- const char *boot_mode = "ssv-seal-broken";
- uuid_string_t volume_uuid_str;
-
- // Set `recovery-broken-seal-uuid = <volume_uuid>`.
- if (volume_uuid) {
- uuid_unparse_upper(volume_uuid, volume_uuid_str);
-
- if (!PEWriteNVRAMProperty(SYSTEM_NVRAM_PREFIX "recovery-broken-seal-uuid",
- volume_uuid_str, sizeof(uuid_string_t))) {
- IOLog("Failed to write recovery-broken-seal-uuid to NVRAM.\n");
- }
- }
-
- // Set `recovery-boot-mode = ssv-seal-broken`.
- if (!PEWriteNVRAMProperty(SYSTEM_NVRAM_PREFIX "recovery-boot-mode", boot_mode,
- (const unsigned int) strlen(boot_mode))) {
- IOLog("Failed to write recovery-boot-mode to NVRAM.\n");
- }
- } else if (mode == BSD_BOOTFAIL_MEDIA_MISSING) {
- const char *boot_picker_reason = "missing-boot-media";
-
- // Set `boot-picker-bringup-reason = missing-boot-media`.
- if (!PEWriteNVRAMProperty(SYSTEM_NVRAM_PREFIX "boot-picker-bringup-reason",
- boot_picker_reason, (const unsigned int) strlen(boot_picker_reason))) {
- IOLog("Failed to write boot-picker-bringup-reason to NVRAM.\n");
- }
-
- // Set `boot-command = recover-system`.
-
- // Construct an OSSymbol and an OSString to be the (key, value) pair
- // we write to NVRAM. Unfortunately, since our value must be an OSString
- // instead of an OSData, we cannot use PEWriteNVRAMProperty() here.
- boot_command_sym = OSSymbol::withCStringNoCopy(SYSTEM_NVRAM_PREFIX "boot-command");
- boot_command_recover = OSString::withCStringNoCopy("recover-system");
- if (boot_command_sym == NULL || boot_command_recover == NULL) {
- IOLog("Failed to create boot-command strings.\n");
- goto do_reboot;
- }
-
- // Wait for NVRAM to be readable...
- nvram = OSDynamicCast(IODTNVRAM, IOService::waitForService(
- IOService::serviceMatching("IODTNVRAM")));
- if (nvram == NULL) {
- IOLog("Failed to acquire IODTNVRAM object.\n");
- goto do_reboot;
- }
-
- // Wait for NVRAM to be writable...
- if (!IOServiceWaitForMatchingResource("IONVRAM", UINT64_MAX)) {
- IOLog("Failed to wait for IONVRAM service.\n");
- // attempt the work anyway...
- }
-
- // Write the new boot-command to NVRAM, and sync if successful.
- if (!nvram->setProperty(boot_command_sym, boot_command_recover)) {
- IOLog("Failed to save new boot-command to NVRAM.\n");
- } else {
- nvram->sync();
- }
- } else {
- IOLog("Unknown mode: %d\n", mode);
- return false;
- }
-
- // Clean up and reboot!
-do_reboot:
- if (boot_command_recover != NULL) {
- boot_command_recover->release();
- }
-
- if (boot_command_sym != NULL) {
- boot_command_sym->release();
- }
-
- if (reboot) {
- IOLog("\nAbout to reboot into Recovery!\n");
- // Mitigation for SEP hanging on kPERestartCPU (radar://164664790).
- // We panic and on the next boot we should land into recovery.
- // This should be reverted back to calling
- // PEHaltRestart(kPERestartCPU) in rdar://169561102.
- panic("Reboot into Recovery (this panic is expected)");
- // (void)PEHaltRestart(kPERestartCPU);
- }
-
- return true;
-}
-
-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;
- OSDataAllocation<char> str;
- const char * look = NULL;
- int len;
- int wdt = 0;
- 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))) {
- OSSafeReleaseNULL(service);
- } else {
- IOLog("!BSD\n");
- }
- matching->release();
- matching = NULL;
-
- if (mountAttempts++) {
- IOLog("mount(%d) failed\n", mountAttempts);
- IOSleep( 5 * 1000 );
- }
-
- str = OSDataAllocation<char>( kMaxPathBuf + kMaxBootVar, OSAllocateMemory );
- if (!str) {
- return kIOReturnNoMemory;
- }
- rdBootVar = str.data() + kMaxPathBuf;
-
- if (!PE_parse_boot_argn("rd", rdBootVar, kMaxBootVar )
- && !PE_parse_boot_argn("rootdev", rdBootVar, kMaxBootVar )) {
- rdBootVar[0] = 0;
- }
-
- if ((regEntry = IORegistryEntry::fromPath( "/chosen", gIODTPlane ))) {
- do {
- di_root_ramfile(regEntry);
- OSObject* unserializedContainer = NULL;
- data = OSDynamicCast(OSData, regEntry->getProperty( "root-matching" ));
- if (data) {
- unserializedContainer = OSUnserializeXML((char *)data->getBytesNoCopy());
- matching = OSDynamicCast(OSDictionary, unserializedContainer);
- if (matching) {
- continue;
- }
- }
- OSSafeReleaseNULL(unserializedContainer);
-
- 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";
- continue;
- } else {
- uuidStr = NULL;
- }
- }
- } while (false);
- OSSafeReleaseNULL(regEntry);
- }
+ }
+
+
//
// 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.
+// 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;
- /* BEGIN IGNORE CODESTYLE */
- __typed_allocators_ignore_push
- ramdParms = (uintptr_t *)data->getBytesNoCopy(); /* Point to the ram disk base and size */
- __typed_allocators_ignore_pop
- /* END IGNORE CODESTYLE */
-#if __LP64__
-#define MAX_PHYS_RAM (((uint64_t)UINT_MAX) << 12)
- if (ramdParms[1] > MAX_PHYS_RAM) {
- panic("ramdisk params");
- }
-#endif /* __LP64__ */
- (void)mdevadd(-1, ml_static_ptovirt(ramdParms[0]) >> 12, (unsigned int) (ramdParms[1] >> 12), 0); /* Initialize it and pass back the device number */
+ 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 */
+
+ ramdParms = (UInt32 *)data->getBytesNoCopy(); /* Point to the ram disk base and size */
+ (void)mdevadd(-1, ramdParms[0] >> 12, ramdParms[1] >> 12, 0); /* Initialize it and pass back the device number */
}
- regEntry->release(); /* Toss the entry */
+ 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((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? */
- OSSafeReleaseNULL(matching);
- *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] = (char) dchar; /* Build root name */
- rootName[3] = 0; /* Build root name */
+ 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... */
+ *oflags = 0; /* Show that this is not network */
+ goto iofrootx; /* Join common exit... */
}
- panic("IOFindBSDRoot: specified root memory device, %s, has not been configured", rdBootVar); /* Not there */
+ 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) {
- OSDataAllocation<char> uuid( kMaxBootVar, OSAllocateMemory );
-
- if (uuid) {
- OSString *uuidString;
-
- if (!PE_parse_boot_argn( "boot-uuid", uuid.data(), kMaxBootVar )) {
- panic( "rd=uuid but no boot-uuid=<value> specified" );
- }
- uuidString = OSString::withCString(uuid.data());
- if (uuidString) {
- IOService::publishResource( "boot-uuid", uuidString );
- uuidString->release();
- IOLog("\nWaiting for boot volume with UUID %s\n", uuid.data());
- matching = IOUUIDMatching();
- mediaProperty = "boot-uuid-media";
- }
- }
- } else {
- matching = IOBSDNameMatching( look );
- }
+ 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();
+ findHFSChild = true;
+ } else {
+ matching = IOBSDNameMatching( look );
}
-
- if (!matching) {
- OSString * astring;
- // Match any HFS media
-
- matching = IOService::serviceMatching( "IOMedia" );
- assert(matching);
- astring = OSString::withCStringNoCopy("Apple_HFS");
- if (astring) {
- matching->setObject("Content", astring);
- astring->release();
- }
+ }
+
+ if( !matching) {
+ OSString * astring;
+ // any HFS
+ matching = IOService::serviceMatching( "IOMedia" );
+ astring = OSString::withCStringNoCopy("Apple_HFS");
+ 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 (gIOKitDebug & kIOWaitQuietBeforeRoot) {
- IOLog( "Waiting for matching to complete\n" );
- IOService::getPlatform()->waitQuiet();
- }
-
- if (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();
- }
-
- PE_parse_boot_argn("wdt", &wdt, sizeof(wdt));
- do {
- t.tv_sec = ROOTDEVICETIMEOUT;
- t.tv_nsec = 0;
- matching->retain();
- service = IOService::waitForService( matching, &t );
- if ((-1 != wdt) && (!service || (mountAttempts == 10))) {
-#if !XNU_TARGET_OS_OSX || !defined(__arm64__)
- PE_display_icon( 0, "noroot");
- IOLog( "Still waiting for root device\n" );
-#endif
-
- 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 XNU_TARGET_OS_OSX && defined(__arm64__)
- // The disk isn't found - have the user pick from System Recovery.
- (void)IOSetRecoveryBoot(BSD_BOOTFAIL_MEDIA_MISSING, NULL, true);
-#elif XNU_TARGET_OS_IOS || XNU_TARGET_OS_XR
- panic("Failed to mount root device");
-#endif
- }
- } while (!service);
-
- OSSafeReleaseNULL(matching);
-
- 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.data(), &len, gIOServicePlane );
- IOLog("Got boot device = %s\n", str.data());
-
- 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;
+ } while( !service);
+ matching->release();
+
+ if ( service && findHFSChild ) {
+ bool waiting = true;
+ // wait for children services to finish registering
+ while ( waiting ) {
+ t.tv_sec = ROOTDEVICETIMEOUT;
+ t.tv_nsec = 0;
+ if ( service->waitQuiet( &t ) == kIOReturnSuccess ) {
+ waiting = false;
+ } else {
+ IOLog( "Waiting for child registration\n" );
+ }
+ }
+ // look for a subservice with an Apple_HFS child
+ IOService * subservice = IOFindMatchingChild( service );
+ if ( subservice ) service = subservice;
+ }
+
+ 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 );
iofrootx:
-
- IOService::setRootMedia(service);
-
- 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;
-}
-
-void
-IOSetImageBoot(void)
-{
- // this will unhide all IOMedia, without waiting for kernelmanagement to start
- IOService::setRootMedia(NULL);
-}
-
-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_SECURE_BSD_ROOT
- 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_SECURE_BSD_ROOT
+ 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 );
}
void *
IOBSDRegistryEntryForDeviceTree(char * path)
{
- return IORegistryEntry::fromPath(path, gIODTPlane);
+ return (IORegistryEntry::fromPath(path, gIODTPlane));
}
void
IOBSDRegistryEntryRelease(void * entry)
{
- IORegistryEntry * regEntry = (IORegistryEntry *)entry;
-
- if (regEntry) {
- regEntry->release();
- }
- return;
+ 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;
-}
+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);
+}
+
} /* extern "C" */
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-#include <sys/conf.h>
-#include <sys/lock.h>
-#include <sys/vnode.h>
-#include <sys/vnode_if.h>
-#include <sys/vnode_internal.h>
-#include <sys/fcntl.h>
-#include <sys/fsctl.h>
-#include <sys/mount.h>
-#include <IOKit/IOPolledInterface.h>
-#include <IOKit/IOBufferMemoryDescriptor.h>
-
-// see HFSIOC_VOLUME_STATUS in APFS/HFS
-#define HFS_IOCTL_VOLUME_STATUS _IOR('h', 24, u_int32_t)
-
-LCK_GRP_DECLARE(gIOPolledCoreFileGrp, "polled_corefile");
-LCK_MTX_DECLARE(gIOPolledCoreFileMtx, &gIOPolledCoreFileGrp);
-
-IOPolledFileIOVars * gIOPolledCoreFileVars;
-kern_return_t gIOPolledCoreFileOpenRet = kIOReturnNotReady;
-IOPolledCoreFileMode_t gIOPolledCoreFileMode = kIOPolledCoreFileModeNotInitialized;
-
-#if IOPOLLED_COREFILE
-
-#define ONE_MB 1024ULL * 1024ULL
-
-#if defined(XNU_TARGET_OS_BRIDGE)
-// On bridgeOS allocate a 150MB corefile and leave 150MB free
-#define kIOCoreDumpSize 150ULL * ONE_MB
-#define kIOCoreDumpFreeSize 150ULL * ONE_MB
-
-#elif defined(XNU_TARGET_OS_OSX)
-
-// 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 * ONE_MB
-#define kIOCoreDumpIncrementalSize 1024ULL * ONE_MB
-
-#define kIOCoreDumpFreeSize 1024ULL * ONE_MB
-
-// on older macOS devices we allocate a 1MB file at boot
-// to store a panic time stackshot
-#define kIOStackshotFileSize ONE_MB
-
-#elif defined(XNU_TARGET_OS_XR)
-
-// XR OS requries larger corefile storage because XNU core can take
-// up to ~500MB.
-
-#define kIOCoreDumpMinSize 350ULL * ONE_MB
-#define kIOCoreDumpLargeSize 750ULL * ONE_MB
-
-#define kIOCoreDumpFreeSize 350ULL * ONE_MB
-
-#else /* 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 * ONE_MB
-#define kIOCoreDumpLargeSize 500ULL * ONE_MB
-
-#define kIOCoreDumpFreeSize 350ULL * ONE_MB
-
-#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
-IOResolveCoreFilePath()
-{
- DTEntry node;
- const char *value = NULL;
- unsigned int size = 0;
-
- if (kSuccess != SecureDTLookupEntry(NULL, "/product", &node)) {
- return;
- }
- if (kSuccess != SecureDTGetProperty(node, "kernel-core-dump-location", (void const **) &value, &size)) {
- return;
- }
- if (size == 0) {
- return;
- }
-
- // The kdp_corefile_path is allowed to be one of 2 options to working locations.
- // This value is set on EARLY_BOOT since we need to know it before any volumes are mounted. The mount
- // event triggers IOOpenPolledCoreFile() which opens the file. Once we commit to using the path from EDT
- // we can't back out since a different path may reside in a different volume.
- // In case the path from EDT can't be opened, there will not be a kernel core-dump
- if (strlcmp(value, "preboot", size) == 0) {
- kdp_corefile_path = kIOCoreDumpPrebootPath;
- } else if (strlcmp(value, "default", size) != 0) {
- IOLog("corefile path selection in device-tree is not one of the allowed values: %s, Using default %s\n", value, kdp_corefile_path);
- return;
- }
-
- IOLog("corefile path selection in device-tree was set to: %s (value: %s)\n", kdp_corefile_path, value);
-}
-STARTUP(EARLY_BOOT, STARTUP_RANK_MIDDLE, IOResolveCoreFilePath);
-
-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 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 * ONE_MB);
- return;
- }
-
- unsigned int status_flags = 0;
- int error = VNOP_IOCTL(rootvnode, HFS_IOCTL_VOLUME_STATUS, (caddr_t)&status_flags, 0,
- vfs_context_kernel());
- if (!error) {
- if (status_flags & (VQ_VERYLOWDISK | VQ_LOWDISK | VQ_NEARLOWDISK)) {
- IOLog("Volume is low on space. Not allocating kernel corefile.\n");
- return;
- }
- } else {
- IOLog("Couldn't retrieve volume status. Error %d\n", error);
- }
-
-#if defined(XNU_TARGET_OS_BRIDGE)
-#pragma unused(mode)
- *ideal_size = *fallback_size = kIOCoreDumpSize;
- *free_space_to_leave = kIOCoreDumpFreeSize;
-#elif !defined(XNU_TARGET_OS_OSX) /* defined(XNU_TARGET_OS_BRIDGE) */
-#pragma unused(mode)
- *ideal_size = *fallback_size = kIOCoreDumpMinSize;
-
- if (max_mem > (3 * 1024ULL * ONE_MB)) {
- *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 * ONE_MB)) {
- *ideal_size = ((ROUNDUP(max_mem, (32 * 1024ULL * ONE_MB)) / (32 * 1024ULL * ONE_MB)) * 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 EXCLAVES_COREDUMP
- *ideal_size += sk_core_size();
-#endif /* EXCLAVES_COREDUMP */
-
- return;
-}
-
-static IOReturn
-IOAccessCoreFileData(void *context, boolean_t write, uint64_t offset, int length, void *buffer)
-{
- errno_t vnode_error = 0;
- vfs_context_t vfs_context;
- vnode_t vnode_ptr = (vnode_t) context;
-
- vfs_context = vfs_context_kernel();
- vnode_error = vn_rdwr(write ? UIO_WRITE : UIO_READ, vnode_ptr, (caddr_t)buffer, length, offset,
- UIO_SYSSPACE, IO_SWAP_DISPATCH | IO_SYNC | IO_NOCACHE | IO_UNIT, vfs_context_ucred(vfs_context), NULL, vfs_context_proc(vfs_context));
-
- if (vnode_error) {
- IOLog("Failed to %s the corefile. Error %d\n", write ? "write to" : "read from", vnode_error);
- return kIOReturnError;
- }
-
- return kIOReturnSuccess;
-}
-
-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 (gIOPolledCoreFileMode == kIOPolledCoreFileModeUnlinked) {
- 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);
-
- if (corefile_size_bytes == 0 && corefile_fallback_size_bytes == 0) {
- gIOPolledCoreFileMode = kIOPolledCoreFileModeUnlinked;
- return;
- }
-
- do {
- // This file reference remains open long-term in case we need to write a core-dump
- err = IOPolledFileOpen(filename, kIOPolledFileCreate, 0 /*setFileSizeMin*/, 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)\n",
- (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, 0 /*setFileSizeMin*/, 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, false);
- 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;
- }
-
- // Provide the "polled file available" callback with a temporary way to read from the file
- (void) IOProvideCoreFileAccess(kdp_core_polled_io_polled_file_available, NULL);
-
- return;
-}
-
-kern_return_t
-IOProvideCoreFileAccess(IOCoreFileAccessRecipient recipient, void *recipient_context)
-{
- kern_return_t error = kIOReturnSuccess;
- errno_t vnode_error = 0;
- vfs_context_t vfs_context;
- vnode_t vnode_ptr;
-
- if (!recipient) {
- return kIOReturnBadArgument;
- }
-
- if (kIOReturnSuccess != gIOPolledCoreFileOpenRet) {
- return kIOReturnNotReady;
- }
-
- // Open the kernel corefile
- vfs_context = vfs_context_kernel();
- vnode_error = vnode_open(kdp_corefile_path, (FREAD | FWRITE | O_NOFOLLOW), 0600, 0, &vnode_ptr, vfs_context);
- if (vnode_error) {
- IOLog("Failed to open the corefile. Error %d\n", vnode_error);
- return kIOReturnError;
- }
-
- // Call the recipient function
- error = recipient(IOAccessCoreFileData, (void *)vnode_ptr, recipient_context);
-
- // Close the kernel corefile
- vnode_close(vnode_ptr, FREAD | FWRITE, vfs_context);
-
- return error;
-}
-
-static void
-IOClosePolledCoreFile(void)
-{
- // Notify kdp core that the corefile is no longer available
- (void) kdp_core_polled_io_polled_file_unavailable();
-
- gIOPolledCoreFileOpenRet = kIOReturnNotOpen;
- gIOPolledCoreFileMode = kIOPolledCoreFileModeClosed;
- IOPolledFilePollersClose(gIOPolledCoreFileVars, kIOPolledPostflightCoreDumpState);
- IOPolledFileClose(&gIOPolledCoreFileVars, 0, NULL, 0, 0, 0, false);
-}
-
-static void
-IOUnlinkPolledCoreFile(void)
-{
- // Notify kdp core that the corefile is no longer available
- (void) kdp_core_polled_io_polled_file_unavailable();
-
- gIOPolledCoreFileOpenRet = kIOReturnNotOpen;
- gIOPolledCoreFileMode = kIOPolledCoreFileModeUnlinked;
- IOPolledFilePollersClose(gIOPolledCoreFileVars, kIOPolledPostflightCoreDumpState);
- IOPolledFileClose(&gIOPolledCoreFileVars, 0, NULL, 0, 0, 0, true);
-}
-
-#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;
-
- lck_mtx_lock(&gIOPolledCoreFileMtx);
-
- 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
- // Does this mount point include the kernel core-file?
- if (0 != strncmp(path, kdp_corefile_path, pathLen - 1)) {
- break;
- }
-
- thread_call_enter1(corefile_open_call, (void *) kdp_corefile_path);
- break;
-
- case kIOMountChangeUnmount:
- case kIOMountChangeWillResize:
- if (gIOPolledCoreFileVars && (mp == kern_file_mount(gIOPolledCoreFileVars->fileRef))) {
- thread_call_cancel_wait(corefile_open_call);
- IOClosePolledCoreFile();
- }
- break;
- }
-
- lck_mtx_unlock(&gIOPolledCoreFileMtx);
-#endif /* IOPOLLED_COREFILE */
-}
-
-extern "C" void
-IOBSDLowSpaceUnlinkKernelCore(void)
-{
-#if IOPOLLED_COREFILE
- lck_mtx_lock(&gIOPolledCoreFileMtx);
- if (gIOPolledCoreFileVars) {
- thread_call_cancel_wait(corefile_open_call);
- IOUnlinkPolledCoreFile();
- }
- lck_mtx_unlock(&gIOPolledCoreFileMtx);
-#endif
-}
-
-/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
-
-static char*
-copyOSStringAsCString(OSString *string)
-{
- size_t string_length = 0;
- char *c_string = NULL;
-
- if (string == NULL) {
- return NULL;
- }
- string_length = string->getLength() + 1;
-
- /* Allocate kernel data memory for the string */
- c_string = (char*)kalloc_data(string_length, (zalloc_flags_t)(Z_ZERO | Z_WAITOK | Z_NOFAIL));
- assert(c_string != NULL);
-
- /* Copy in the string */
- strlcpy(c_string, string->getCStringNoCopy(), string_length);
-
- return c_string;
-}
-
-extern "C" OS_ALWAYS_INLINE boolean_t
-IOCurrentTaskHasStringEntitlement(const char *entitlement, const char *value)
-{
- return IOTaskHasStringEntitlement(NULL, entitlement, value);
-}
-
-extern "C" boolean_t
-IOTaskHasStringEntitlement(task_t task, const char *entitlement, const char *value)
-{
- if (task == NULL) {
- task = current_task();
- }
-
- /* Validate input arguments */
- if (task == kernel_task || entitlement == NULL || value == NULL) {
- return false;
- }
- proc_t proc = (proc_t)get_bsdtask_info(task);
-
- if (proc == NULL) {
- return false;
- }
-
- kern_return_t ret = amfi->OSEntitlements.queryEntitlementStringWithProc(
- proc,
- entitlement,
- value);
-
- if (ret == KERN_SUCCESS) {
- return true;
- }
-
- return false;
-}
-
-extern "C" OS_ALWAYS_INLINE boolean_t
-IOCurrentTaskHasEntitlement(const char *entitlement)
-{
- return IOTaskHasEntitlement(NULL, entitlement);
-}
-
-/*
- * Reminder to reader: This only returns `true` if:
- * - The entitlement is boolean-valued
- * - The value is `true`
- * If you are looking to check whether an entitlement is present,
- * you likely want `IOVnodeIsEntitlementPresentWithAnyValue`
- * or `IOTaskHasEntitlementAsBooleanOrObject` (caveat emptor).
- */
-extern "C" boolean_t
-IOTaskHasEntitlement(task_t task, const char *entitlement)
-{
- if (task == NULL) {
- task = current_task();
- }
-
- /* Validate input arguments */
- if (task == kernel_task || entitlement == NULL) {
- return false;
- }
- proc_t proc = (proc_t)get_bsdtask_info(task);
-
- if (proc == NULL) {
- return false;
- }
-
- kern_return_t ret = amfi->OSEntitlements.queryEntitlementBooleanWithProc(
- proc,
- entitlement);
-
- if (ret == KERN_SUCCESS) {
- return true;
- }
-
- return false;
-}
-
-extern "C" boolean_t
-IOTaskGetIntegerEntitlement(task_t task, const char *entitlement, uint64_t *value)
-{
- void *entitlement_object = NULL;
-
- if (task == NULL) {
- task = current_task();
- }
-
- /* Validate input arguments */
- if (task == kernel_task || entitlement == NULL || value == NULL) {
- return false;
- }
- proc_t proc = (proc_t)get_bsdtask_info(task);
-
- if (proc == NULL) {
- return false;
- }
-
- kern_return_t ret = amfi->OSEntitlements.copyEntitlementAsOSObjectWithProc(
- proc,
- entitlement,
- &entitlement_object);
-
- if (ret != KERN_SUCCESS) {
- return false;
- }
- assert(entitlement_object != NULL);
-
- OSObject *os_object = (OSObject*)entitlement_object;
- OSNumber *os_number = OSDynamicCast(OSNumber, os_object);
-
- boolean_t has_entitlement = os_number != NULL;
- if (has_entitlement) {
- *value = os_number->unsigned64BitValue();
- }
-
- /* Free the OSObject which was given to us */
- OSSafeReleaseNULL(os_object);
-
- return has_entitlement;
-}
-
-extern "C" OS_ALWAYS_INLINE char*
-IOCurrentTaskGetEntitlement(const char *entitlement)
-{
- return IOTaskGetEntitlement(NULL, entitlement);
-}
-
-extern "C" char*
-IOTaskGetEntitlement(task_t task, const char *entitlement)
-{
- void *entitlement_object = NULL;
- char *return_value = NULL;
-
- if (task == NULL) {
- task = current_task();
- }
-
- /* Validate input arguments */
- if (task == kernel_task || entitlement == NULL) {
- return NULL;
- }
- proc_t proc = (proc_t)get_bsdtask_info(task);
-
- if (proc == NULL) {
- return NULL;
- }
-
- kern_return_t ret = amfi->OSEntitlements.copyEntitlementAsOSObjectWithProc(
- proc,
- entitlement,
- &entitlement_object);
-
- if (ret != KERN_SUCCESS) {
- return NULL;
- }
- assert(entitlement_object != NULL);
-
- OSObject *os_object = (OSObject*)entitlement_object;
- OSString *os_string = OSDynamicCast(OSString, os_object);
-
- /* Get a C string version of the OSString */
- return_value = copyOSStringAsCString(os_string);
-
- /* Free the OSObject which was given to us */
- OSSafeReleaseNULL(os_object);
-
- return return_value;
-}
-
-extern "C" boolean_t
-IOTaskHasEntitlementAsBooleanOrObject(task_t task, const char *entitlement)
-{
- if (task == NULL) {
- task = current_task();
- }
-
- /* Validate input arguments */
- if (task == kernel_task || entitlement == NULL) {
- return false;
- }
- proc_t proc = (proc_t)get_bsdtask_info(task);
-
- if (proc == NULL) {
- return false;
- }
-
- kern_return_t ret = amfi->OSEntitlements.queryEntitlementBooleanWithProc(
- proc,
- entitlement);
- if (ret == KERN_SUCCESS) {
- return true;
- }
-
- /* Check for the presence of an object */
- void *entitlement_object = NULL;
- ret = amfi->OSEntitlements.copyEntitlementAsOSObjectWithProc(
- proc,
- entitlement,
- &entitlement_object);
- if (ret != KERN_SUCCESS) {
- return false;
- }
- assert(entitlement_object != NULL);
-
- OSObject *os_object = (OSObject*)entitlement_object;
-
- bool not_false_entitlement = (os_object != kOSBooleanFalse);
-
- /* Free the OSObject which was given to us */
- OSSafeReleaseNULL(os_object);
-
- return not_false_entitlement;
-}
-
-extern "C" boolean_t
-IOVnodeHasEntitlement(vnode_t vnode, int64_t off, const char *entitlement)
-{
- OSObject * obj;
- off_t offset = (off_t)off;
-
- obj = IOUserClient::copyClientEntitlementVnode(vnode, offset, entitlement);
- if (!obj) {
- return false;
- }
- obj->release();
- return obj != kOSBooleanFalse;
-}
-
-extern "C" boolean_t
-IOVnodeIsEntitlementPresentWithAnyValue(vnode_t vnode, int64_t off, const char *entitlement)
-{
- OSObject * obj;
- off_t offset = (off_t)off;
-
- obj = IOUserClient::copyClientEntitlementVnode(vnode, offset, entitlement);
- if (!obj) {
- return false;
- }
- obj->release();
- return true;
-}
-
-/*
- * Support querying an OSBoolean entitlement value,
- * while distinguishing between the following cases:
- * - the entitlement does not exist.
- * - the entitlement exists with a value of false.
- * - the entitlement exists with a value of true.
- *
- * Return value:
- * - false if the entitlement does not exist.
- * - true if the entitlement exists.
- *
- * If the return value is true, the `value` argument will
- * hold the entitlement value, which has to be Boolean.
- */
-extern "C" boolean_t
-IOVnodeGetBooleanEntitlement(
- vnode_t vnode,
- int64_t off,
- const char *entitlement,
- bool *value)
-{
- OSObject * obj;
- off_t offset = (off_t)off;
-
- obj = IOUserClient::copyClientEntitlementVnode(vnode, offset, entitlement);
- if (!obj) {
- return false;
- }
-
- if (obj == kOSBooleanTrue) {
- *value = true;
- } else if (obj == kOSBooleanFalse) {
- *value = false;
- } else {
- panic("%s: entitlement is not OSBoolean", __func__);
- }
-
- obj->release();
- return true;
-}
-
-extern boolean_t
-IOVnodeGetIntegerEntitlement(struct vnode *vnode, int64_t off, const char *entitlement, uint64_t *value)
-{
- OSObject *obj;
- boolean_t ret = false;
- off_t offset = (off_t)off;
-
- obj = IOUserClient::copyClientEntitlementVnode(vnode, offset, entitlement);
- if (!obj) {
- return ret;
- }
-
- OSNumber *num = OSDynamicCast(OSNumber, obj);
- if (num) {
- *value = num->unsigned64BitValue();
- ret = true;
- }
-
- obj->release();
- return ret;
-}
-
-extern "C" char *
-IOVnodeGetEntitlement(vnode_t vnode, int64_t off, const char *entitlement)
-{
- OSObject *obj = NULL;
- OSString *str = NULL;
- size_t len;
- char *value = NULL;
- off_t offset = (off_t)off;
-
- obj = IOUserClient::copyClientEntitlementVnode(vnode, offset, entitlement);
- if (obj != NULL) {
- str = OSDynamicCast(OSString, obj);
- if (str != NULL) {
- len = str->getLength() + 1;
- value = (char *)kalloc_data(len, Z_WAITOK);
- strlcpy(value, str->getCStringNoCopy(), len);
- }
- obj->release();
- }
- return value;
-}