X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/21362eb3e66fd2c787aee132bce100a44d71a99c..0c530ab8987f0ae6a1a3d9284f40182b88852816:/iokit/Kernel/IOUserClient.cpp diff --git a/iokit/Kernel/IOUserClient.cpp b/iokit/Kernel/IOUserClient.cpp index 7506a0cc4..d68a73632 100644 --- a/iokit/Kernel/IOUserClient.cpp +++ b/iokit/Kernel/IOUserClient.cpp @@ -1,29 +1,23 @@ /* * Copyright (c) 1998-2004 Apple Computer, Inc. All rights reserved. * - * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ + * @APPLE_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. + * 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. * - * 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 + * 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. + * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the + * License for the specific language governing rights and limitations + * under the License. * - * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ + * @APPLE_LICENSE_HEADER_END@ */ @@ -31,7 +25,6 @@ #include #include #include -#include #include #include #include @@ -837,6 +830,22 @@ IOReturn IOUserClient::clientHasPrivilege( void * securityToken, return (kr); } +bool IOUserClient::init() +{ + if( getPropertyTable()) + return true; + else + return super::init(); +} + +bool IOUserClient::init(OSDictionary * dictionary) +{ + if( getPropertyTable()) + return true; + else + return super::init(dictionary); +} + bool IOUserClient::initWithTask(task_t owningTask, void * securityID, UInt32 type ) @@ -1760,6 +1769,7 @@ kern_return_t is_io_registry_entry_get_property_bytes( return( ret ); } + /* Routine io_registry_entry_get_property */ kern_return_t is_io_registry_entry_get_property( io_object_t registry_entry, @@ -1993,7 +2003,7 @@ kern_return_t is_io_service_open( CHECK( IOService, _service, service ); err = service->newUserClient( owningTask, (void *) owningTask, - connect_type, &client ); + connect_type, 0, &client ); if( err == kIOReturnSuccess) { assert( OSDynamicCast(IOUserClient, client) ); @@ -2003,6 +2013,101 @@ kern_return_t is_io_service_open( return( err); } +/* Routine io_service_open_ndr */ +kern_return_t is_io_service_open_extended( + io_object_t _service, + task_t owningTask, + int connect_type, + NDR_record_t ndr, + io_buf_ptr_t properties, + mach_msg_type_number_t propertiesCnt, + natural_t * result, + io_object_t *connection ) +{ + IOUserClient * client = 0; + kern_return_t err = KERN_SUCCESS; + IOReturn res = kIOReturnSuccess; + OSDictionary * propertiesDict = 0; + bool crossEndian; + bool disallowAccess; + + CHECK( IOService, _service, service ); + + do + { + if (properties) + { + OSObject * obj; + vm_offset_t data; + vm_map_offset_t map_data; + + err = vm_map_copyout( kernel_map, &map_data, (vm_map_copy_t) properties ); + res = err; + data = CAST_DOWN(vm_offset_t, map_data); + if (KERN_SUCCESS == err) + { + // must return success after vm_map_copyout() succeeds + obj = OSUnserializeXML( (const char *) data ); + vm_deallocate( kernel_map, data, propertiesCnt ); + propertiesDict = OSDynamicCast(OSDictionary, obj); + if (!propertiesDict) + { + res = kIOReturnBadArgument; + if (obj) + obj->release(); + } + } + if (kIOReturnSuccess != res) + break; + } + + crossEndian = (ndr.int_rep != NDR_record.int_rep); + if (crossEndian) + { + if (!propertiesDict) + propertiesDict = OSDictionary::withCapacity(4); + OSData * data = OSData::withBytes(&ndr, sizeof(ndr)); + if (data) + { + if (propertiesDict) + propertiesDict->setObject(kIOUserClientCrossEndianKey, data); + data->release(); + } + } + + res = service->newUserClient( owningTask, (void *) owningTask, + connect_type, propertiesDict, &client ); + + if (propertiesDict) + propertiesDict->release(); + + if (res == kIOReturnSuccess) + { + assert( OSDynamicCast(IOUserClient, client) ); + + disallowAccess = (crossEndian + && (kOSBooleanTrue != service->getProperty(kIOUserClientCrossEndianCompatibleKey)) + && (kOSBooleanTrue != client->getProperty(kIOUserClientCrossEndianCompatibleKey))); + + if (disallowAccess) + { + client->clientClose(); + client->release(); + client = 0; + res = kIOReturnUnsupported; + break; + } + client->sharedInstance = (0 != client->getProperty(kIOUserClientSharedInstanceKey)); + } + } + while (false); + + *connection = client; + *result = res; + + return (err); +} + /* Routine io_service_close */ kern_return_t is_io_service_close( io_object_t connection ) @@ -2069,7 +2174,8 @@ kern_return_t is_io_connect_map_memory( if( mapSize) *mapSize = map->getLength(); - if( task != current_task()) { + if( client->sharedInstance + || (task != current_task())) { // push a name out to the task owning the map, // so we can clean up maps #if IOASSERT