]> git.saurik.com Git - apple/xnu.git/blobdiff - iokit/Kernel/IOUserClient.cpp
xnu-3248.20.55.tar.gz
[apple/xnu.git] / iokit / Kernel / IOUserClient.cpp
index 084471c3c7ebd0d479e2dd2d4f24bf9e3e7b1cf6..8c628ddf1f83c7ee367a4c792fc1793ee69de629 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998-2008 Apple Inc. All rights reserved.
+ * Copyright (c) 1998-2014 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
 #include <IOKit/IOMemoryDescriptor.h>
 #include <IOKit/IOBufferMemoryDescriptor.h>
 #include <IOKit/IOLib.h>
+#include <IOKit/IOStatisticsPrivate.h>
+#include <IOKit/IOTimeStamp.h>
+#include <IOKit/system.h>
 #include <libkern/OSDebug.h>
 #include <sys/proc.h>
+#include <sys/kauth.h>
+#include <sys/codesign.h>
+
+#if CONFIG_MACF
+
+extern "C" {
+#include <security/mac_framework.h>
+};
+#include <sys/kauth.h>
+
+#define IOMACF_LOG 0
+
+#endif /* CONFIG_MACF */
 
 #include <IOKit/assert.h>
 
@@ -47,7 +63,7 @@
 
 #define SCALAR64(x) ((io_user_scalar_t)((unsigned int)x))
 #define SCALAR32(x) ((uint32_t )x)
-#define ARG32(x)    ((void *)SCALAR32(x))
+#define ARG32(x)    ((void *)(uintptr_t)SCALAR32(x))
 #define REF64(x)    ((io_user_reference_t)((UInt64)(x)))
 #define REF32(x)    ((int)(x))
 
@@ -57,6 +73,32 @@ enum
     kIOUCAsync64Flag = 1ULL
 };
 
+#if IOKITSTATS
+
+#define IOStatisticsRegisterCounter() \
+do { \
+       reserved->counter = IOStatistics::registerUserClient(this); \
+} while (0)
+
+#define IOStatisticsUnregisterCounter() \
+do { \
+       if (reserved) \
+               IOStatistics::unregisterUserClient(reserved->counter); \
+} while (0)
+
+#define IOStatisticsClientCall() \
+do { \
+       IOStatistics::countUserClientCall(client); \
+} while (0)
+
+#else
+
+#define IOStatisticsRegisterCounter()
+#define IOStatisticsUnregisterCounter()
+#define IOStatisticsClientCall()
+
+#endif /* IOKITSTATS */
+
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 // definitions we should get from osfmk
@@ -124,7 +166,7 @@ public:
     static mach_port_name_t makeSendRightForTask( task_t task,
                                io_object_t obj, ipc_kobject_type_t type );
 
-    virtual void free();
+    virtual void free() APPLE_KEXT_OVERRIDE;
 };
 
 #define super OSObject
@@ -312,26 +354,119 @@ void IOMachPort::free( void )
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
-class IOUserNotification : public OSIterator
+class IOUserIterator : public OSIterator
+{
+    OSDeclareDefaultStructors(IOUserIterator)
+public:
+    OSObject   *       userIteratorObject;
+    IOLock     *       lock;
+
+    static IOUserIterator * withIterator(OSIterator * iter);
+    virtual bool init( void ) APPLE_KEXT_OVERRIDE;
+    virtual void free() APPLE_KEXT_OVERRIDE;
+
+    virtual void reset() APPLE_KEXT_OVERRIDE;
+    virtual bool isValid() APPLE_KEXT_OVERRIDE;
+    virtual OSObject * getNextObject() APPLE_KEXT_OVERRIDE;
+};
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+class IOUserNotification : public IOUserIterator
 {
     OSDeclareDefaultStructors(IOUserNotification)
 
-    IONotifier         *       holdNotify;
-    IOLock     *       lock;
+#define holdNotify     userIteratorObject
 
 public:
 
-    virtual bool init( void );
-    virtual void free();
+    virtual void free() APPLE_KEXT_OVERRIDE;
 
     virtual void setNotification( IONotifier * obj );
 
-    virtual void reset();
-    virtual bool isValid();
+    virtual void reset() APPLE_KEXT_OVERRIDE;
+    virtual bool isValid() APPLE_KEXT_OVERRIDE;
 };
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
+OSDefineMetaClassAndStructors( IOUserIterator, OSIterator )
+
+IOUserIterator *
+IOUserIterator::withIterator(OSIterator * iter)
+{
+    IOUserIterator * me;
+
+    if (!iter) return (0);
+
+    me = new IOUserIterator;
+    if (me && !me->init())
+    {
+       me->release();
+       me = 0;
+    }
+    if (!me) return me;
+    me->userIteratorObject = iter;
+
+    return (me);
+}
+
+bool
+IOUserIterator::init( void )
+{
+    if (!OSObject::init()) return (false);
+
+    lock = IOLockAlloc();
+    if( !lock)
+        return( false );
+
+    return (true);
+}
+
+void
+IOUserIterator::free()
+{
+    if (userIteratorObject) userIteratorObject->release();
+    if (lock) IOLockFree(lock);
+    OSObject::free();
+}
+
+void
+IOUserIterator::reset()
+{
+    IOLockLock(lock);
+    assert(OSDynamicCast(OSIterator, userIteratorObject));
+    ((OSIterator *)userIteratorObject)->reset();
+    IOLockUnlock(lock);
+}
+
+bool
+IOUserIterator::isValid()
+{
+    bool ret;
+
+    IOLockLock(lock);
+    assert(OSDynamicCast(OSIterator, userIteratorObject));
+    ret = ((OSIterator *)userIteratorObject)->isValid();
+    IOLockUnlock(lock);
+
+    return (ret);
+}
+
+OSObject *
+IOUserIterator::getNextObject()
+{
+    OSObject * ret;
+
+    IOLockLock(lock);
+    assert(OSDynamicCast(OSIterator, userIteratorObject));
+    ret = ((OSIterator *)userIteratorObject)->getNextObject();
+    IOLockUnlock(lock);
+
+    return (ret);
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 extern "C" {
 
 // functions called from osfmk/device/iokit_rpc.c
@@ -383,9 +518,11 @@ iokit_client_died( io_object_t obj, ipc_port_t /* port */,
 
     if( IKOT_IOKIT_CONNECT == type)
     {
-       if( (client = OSDynamicCast( IOUserClient, obj )))
+       if( (client = OSDynamicCast( IOUserClient, obj ))) {
+               IOStatisticsClientCall();
            client->clientDied();
     }
+    }
     else if( IKOT_IOKIT_OBJECT == type)
     {
        if( (map = OSDynamicCast( IOMemoryMap, obj )))
@@ -423,13 +560,13 @@ public:
     virtual bool init( mach_port_t port, natural_t type,
                        void * reference, vm_size_t referenceSize,
                       bool clientIs64 );
-    virtual void free();
+    virtual void free() APPLE_KEXT_OVERRIDE;
 
     static bool _handler( void * target,
                           void * ref, IOService * newService, IONotifier * notifier );
     virtual bool handler( void * ref, IOService * newService );
 
-    virtual OSObject * getNextObject();
+    virtual OSObject * getNextObject() APPLE_KEXT_OVERRIDE;
 };
 
 class IOServiceMessageUserNotification : public IOUserNotification
@@ -455,7 +592,7 @@ public:
                       vm_size_t extraSize,
                       bool clientIs64 );
 
-    virtual void free();
+    virtual void free() APPLE_KEXT_OVERRIDE;
     
     static IOReturn _handler( void * target, void * ref,
                               UInt32 messageType, IOService * provider,
@@ -464,46 +601,35 @@ public:
                               UInt32 messageType, IOService * provider,
                               void * messageArgument, vm_size_t argSize );
 
-    virtual OSObject * getNextObject();
+    virtual OSObject * getNextObject() APPLE_KEXT_OVERRIDE;
 };
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
 #undef super
-#define super OSIterator
-OSDefineMetaClass( IOUserNotification, OSIterator )
-OSDefineAbstractStructors( IOUserNotification, OSIterator )
+#define super IOUserIterator
+OSDefineMetaClass( IOUserNotification, IOUserIterator )
+OSDefineAbstractStructors( IOUserNotification, IOUserIterator )
 
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
-bool IOUserNotification::init( void )
-{
-    if( !super::init())
-       return( false );
-
-    lock = IOLockAlloc();
-    if( !lock)
-        return( false );
-
-    return( true );
-}
-
 void IOUserNotification::free( void )
 {
-    if( holdNotify)
-       holdNotify->remove();
+    if (holdNotify)
+    {
+       assert(OSDynamicCast(IONotifier, holdNotify));
+       ((IONotifier *)holdNotify)->remove();
+       holdNotify = 0;
+    }
     // can't be in handler now
 
-    if( lock)
-       IOLockFree( lock );
-
     super::free();
 }
 
 
 void IOUserNotification::setNotification( IONotifier * notify )
 {
-    IONotifier * previousNotify;
+    OSObject * previousNotify;
 
     IOLockLock( gIOObjectPortLock);
 
@@ -513,7 +639,10 @@ void IOUserNotification::setNotification( IONotifier * notify )
     IOLockUnlock( gIOObjectPortLock);
 
     if( previousNotify)
-       previousNotify->remove();
+    {
+       assert(OSDynamicCast(IONotifier, previousNotify));
+       ((IONotifier *)previousNotify)->remove();
+    }
 }
 
 void IOUserNotification::reset()
@@ -538,6 +667,9 @@ bool IOServiceUserNotification::init( mach_port_t port, natural_t type,
                                       void * reference, vm_size_t referenceSize,
                                       bool clientIs64 )
 {
+    if( !super::init())
+        return( false );
+
     newSet = OSArray::withCapacity( 1 );
     if( !newSet)
         return( false );
@@ -563,7 +695,7 @@ bool IOServiceUserNotification::init( mach_port_t port, natural_t type,
     pingMsg->notifyHeader.type = type;
     bcopy( reference, pingMsg->notifyHeader.reference, referenceSize );
 
-    return( super::init() );
+    return( true );
 }
 
 void IOServiceUserNotification::free( void )
@@ -580,8 +712,12 @@ void IOServiceUserNotification::free( void )
 
     super::free();
 
-    if( _pingMsg && _msgSize)
-        IOFree( _pingMsg, _msgSize);
+    if( _pingMsg && _msgSize) {
+               if (_pingMsg->msgHdr.msgh_remote_port) {
+                       iokit_release_port_send(_pingMsg->msgHdr.msgh_remote_port);
+               }
+        IOFree(_pingMsg, _msgSize);
+       }
 
     if( _lastEntry)
         _lastEntry->release();
@@ -625,8 +761,10 @@ bool IOServiceUserNotification::handler( void * ref,
        else
             pingMsg->msgHdr.msgh_local_port = NULL;
 
-        kr = mach_msg_send_from_kernel_proper( &pingMsg->msgHdr,
-                                        pingMsg->msgHdr.msgh_size);
+        kr = mach_msg_send_from_kernel_with_options( &pingMsg->msgHdr,
+                                                    pingMsg->msgHdr.msgh_size,
+                                                    (MACH_SEND_MSG | MACH_SEND_ALWAYS | MACH_SEND_IMPORTANCE),
+                                                    0);
        if( port)
            iokit_release_port( port );
 
@@ -673,6 +811,8 @@ bool IOServiceMessageUserNotification::init( mach_port_t port, natural_t type,
                                void * reference, vm_size_t referenceSize, vm_size_t extraSize,
                                bool client64 )
 {
+    if( !super::init())
+        return( false );
 
     if (referenceSize > sizeof(OSAsyncReference64))
         return( false );
@@ -707,7 +847,7 @@ bool IOServiceMessageUserNotification::init( mach_port_t port, natural_t type,
     pingMsg->notifyHeader.type                 = type;
     bcopy( reference, pingMsg->notifyHeader.reference, referenceSize );
 
-    return( super::init() );
+    return( true );
 }
 
 void IOServiceMessageUserNotification::free( void )
@@ -720,8 +860,12 @@ void IOServiceMessageUserNotification::free( void )
 
     super::free();
 
-    if( _pingMsg && _msgSize)
+    if( _pingMsg && _msgSize) {
+               if (_pingMsg->msgHdr.msgh_remote_port) {
+                       iokit_release_port_send(_pingMsg->msgHdr.msgh_remote_port);
+               }
         IOFree( _pingMsg, _msgSize);
+       }
 }
 
 IOReturn IOServiceMessageUserNotification::_handler( void * target, void * ref,
@@ -744,8 +888,8 @@ IOReturn IOServiceMessageUserNotification::handler( void * ref,
 
     if (kIOMessageCopyClientID == messageType)
     {
-       *((void **) messageArgument) = IOCopyLogNameForPID(owningPID);
-       return (kIOReturnSuccess);
+        *((void **) messageArgument) = OSNumber::withNumber(owningPID, 32);
+        return (kIOReturnSuccess);
     }
 
     data->messageType = messageType;
@@ -767,6 +911,15 @@ IOReturn IOServiceMessageUserNotification::handler( void * ref,
             argSize = kIOUserNotifyMaxMessageSize;
         bcopy( messageArgument, data->messageArgument, argSize );
     }
+
+    // adjust message size for ipc restrictions
+    natural_t type;
+    type = pingMsg->notifyHeader.type;
+    type &= ~(kIOKitNoticationMsgSizeMask << kIOKitNoticationTypeSizeAdjShift);
+    type |= ((argSize & kIOKitNoticationMsgSizeMask) << kIOKitNoticationTypeSizeAdjShift);
+    pingMsg->notifyHeader.type = type;
+    argSize = (argSize + kIOKitNoticationMsgSizeMask) & ~kIOKitNoticationMsgSizeMask;
+
     pingMsg->msgHdr.msgh_size = msgSize - pingMsg->notifyHeader.size
         + sizeof( IOServiceInterestContent64 )
         - sizeof( data->messageArgument)
@@ -776,8 +929,10 @@ IOReturn IOServiceMessageUserNotification::handler( void * ref,
     pingMsg->ports[0].name = providerPort;
     thisPort = iokit_port_for_object( this, IKOT_IOKIT_OBJECT );
     pingMsg->msgHdr.msgh_local_port = thisPort;
-    kr = mach_msg_send_from_kernel_proper( &pingMsg->msgHdr,
-                                   pingMsg->msgHdr.msgh_size);
+    kr = mach_msg_send_from_kernel_with_options( &pingMsg->msgHdr,
+                                                pingMsg->msgHdr.msgh_size,
+                                                (MACH_SEND_MSG | MACH_SEND_ALWAYS | MACH_SEND_IMPORTANCE),
+                                                0);
     if( thisPort)
        iokit_release_port( thisPort );
     if( providerPort)
@@ -827,6 +982,16 @@ void IOUserClient::setAsyncReference64(OSAsyncReference64 asyncRef,
     asyncRef[kIOAsyncCalloutRefconIndex] = refcon;
 }
 
+void IOUserClient::setAsyncReference64(OSAsyncReference64 asyncRef,
+                                       mach_port_t wakePort,
+                                       mach_vm_address_t callback, io_user_reference_t refcon, task_t task)
+{
+    setAsyncReference64(asyncRef, wakePort, callback, refcon);
+    if (vm_map_is_64bit(get_task_map(task))) {
+            asyncRef[kIOAsyncReservedIndex] |= kIOUCAsync64Flag;
+    }
+}
+
 static OSDictionary * CopyConsoleUser(UInt32 uid)
 {
        OSArray * array;
@@ -851,21 +1016,50 @@ static OSDictionary * CopyConsoleUser(UInt32 uid)
     return user;
 }
 
-static bool IOUCIsBackgroundTask(task_t task, bool * isBg)
+static OSDictionary * CopyUserOnConsole(void)
 {
-    kern_return_t               kr;
-    task_category_policy_data_t info;
-    mach_msg_type_number_t      count = TASK_CATEGORY_POLICY_COUNT;
-    boolean_t                   get_default = false;
+    OSArray * array;
+    OSDictionary * user = 0; 
+    
+    if ((array = OSDynamicCast(OSArray,
+       IORegistryEntry::getRegistryRoot()->copyProperty(gIOConsoleUsersKey))))
+    {
+       for (unsigned int idx = 0;
+               (user = OSDynamicCast(OSDictionary, array->getObject(idx)));
+               idx++)
+       {
+           if (kOSBooleanTrue == user->getObject(gIOConsoleSessionOnConsoleKey))
+           {
+               user->retain();
+               break;
+           }
+       }
+       array->release();
+    }
+    return (user);
+}
 
-    kr = task_policy_get(current_task(),
-                         TASK_CATEGORY_POLICY,
-                         (task_policy_t) &info,
-                         &count,
-                         &get_default);
+IOReturn IOUserClient::clientHasAuthorization( task_t task,
+                                               IOService * service )
+{
+    proc_t p;
+    
+    p = (proc_t) get_bsdtask_info(task);
+    if (p)
+    {
+        uint64_t authorizationID;
 
-    *isBg = ((KERN_SUCCESS == kr) && (info.role == TASK_THROTTLE_APPLICATION));
-    return (kr);
+        authorizationID = proc_uniqueid(p);
+        if (authorizationID)
+        {
+            if (service->getAuthorizationID() == authorizationID)
+            {
+                return (kIOReturnSuccess);
+            }
+        }
+    }
+
+    return (kIOReturnNotPermitted);
 }
 
 IOReturn IOUserClient::clientHasPrivilege( void * securityToken,
@@ -882,12 +1076,40 @@ IOReturn IOUserClient::clientHasPrivilege( void * securityToken,
     if (!strncmp(privilegeName, kIOClientPrivilegeForeground, 
                 sizeof(kIOClientPrivilegeForeground)))
     {
-        bool isBg;
-        kern_return_t kr = IOUCIsBackgroundTask(current_task(), &isBg);
+       if (task_is_gpu_denied(current_task()))
+               return (kIOReturnNotPrivileged);
+       else
+               return (kIOReturnSuccess);
+    }
+
+    if (!strncmp(privilegeName, kIOClientPrivilegeConsoleSession,
+                                sizeof(kIOClientPrivilegeConsoleSession)))
+    {
+       kauth_cred_t cred;
+       proc_t       p;
 
-        if (KERN_SUCCESS != kr)
-            return (kr);
-        return (isBg ? kIOReturnNotPrivileged : kIOReturnSuccess);
+        task = (task_t) securityToken;
+       if (!task)
+           task = current_task();
+       p = (proc_t) get_bsdtask_info(task);
+       kr = kIOReturnNotPrivileged;
+
+       if (p && (cred = kauth_cred_proc_ref(p)))
+       {
+           user = CopyUserOnConsole();
+           if (user)
+           {
+               OSNumber * num;
+               if ((num = OSDynamicCast(OSNumber, user->getObject(gIOConsoleSessionAuditIDKey)))
+                 && (cred->cr_audit.as_aia_p->ai_asid == (au_asid_t) num->unsigned32BitValue()))
+               {
+                   kr = kIOReturnSuccess;
+               }
+               user->release();
+           }
+           kauth_cred_unref(&cred);
+       }
+       return (kr);
     }
 
     if ((secureConsole = !strncmp(privilegeName, kIOClientPrivilegeSecureConsoleProcess,
@@ -895,7 +1117,7 @@ IOReturn IOUserClient::clientHasPrivilege( void * securityToken,
         task = (task_t)((IOUCProcessToken *)securityToken)->token;
     else
         task = (task_t)securityToken;
-    
+
     count = TASK_SECURITY_TOKEN_COUNT;
     kr = task_info( task, TASK_SECURITY_TOKEN, (task_info_t) &token, &count );
 
@@ -933,30 +1155,106 @@ IOReturn IOUserClient::clientHasPrivilege( void * securityToken,
     return (kr);
 }
 
+OSObject * IOUserClient::copyClientEntitlement( task_t task,
+                                                const char * entitlement )
+{
+#define        MAX_ENTITLEMENTS_LEN    (128 * 1024)
+
+       proc_t p = NULL;
+       pid_t pid = 0;
+       char procname[MAXCOMLEN + 1] = "";
+       size_t len = 0;
+       void *entitlements_blob = NULL;
+       char *entitlements_data = NULL;
+       OSObject *entitlements_obj = NULL;
+       OSDictionary *entitlements = NULL;
+       OSString *errorString = NULL;
+       OSObject *value = NULL;
+
+       p = (proc_t)get_bsdtask_info(task);
+       if (p == NULL)
+               goto fail;
+       pid = proc_pid(p);
+       proc_name(pid, procname, (int)sizeof(procname));
+
+       if (cs_entitlements_blob_get(p, &entitlements_blob, &len) != 0)
+               goto fail;
+
+       if (len <= offsetof(CS_GenericBlob, data))
+               goto fail;
+
+       /*
+        * Per <rdar://problem/11593877>, enforce a limit on the amount of XML
+        * we'll try to parse in the kernel.
+        */
+       len -= offsetof(CS_GenericBlob, data);
+       if (len > MAX_ENTITLEMENTS_LEN) {
+               IOLog("failed to parse entitlements for %s[%u]: %lu bytes of entitlements exceeds maximum of %u\n", procname, pid, len, MAX_ENTITLEMENTS_LEN);
+               goto fail;
+       }
+
+       /*
+        * OSUnserializeXML() expects a nul-terminated string, but that isn't
+        * what is stored in the entitlements blob.  Copy the string and
+        * terminate it.
+        */
+       entitlements_data = (char *)IOMalloc(len + 1);
+       if (entitlements_data == NULL)
+               goto fail;
+       memcpy(entitlements_data, ((CS_GenericBlob *)entitlements_blob)->data, len);
+       entitlements_data[len] = '\0';
+
+       entitlements_obj = OSUnserializeXML(entitlements_data, len + 1, &errorString);
+       if (errorString != NULL) {
+               IOLog("failed to parse entitlements for %s[%u]: %s\n", procname, pid, errorString->getCStringNoCopy());
+               goto fail;
+       }
+       if (entitlements_obj == NULL)
+               goto fail;
+
+       entitlements = OSDynamicCast(OSDictionary, entitlements_obj);
+       if (entitlements == NULL)
+               goto fail;
+
+       /* Fetch the entitlement value from the dictionary. */
+       value = entitlements->getObject(entitlement);
+       if (value != NULL)
+               value->retain();
+
+fail:
+       if (entitlements_data != NULL)
+               IOFree(entitlements_data, len + 1);
+       if (entitlements_obj != NULL)
+               entitlements_obj->release();
+       if (errorString != NULL)
+               errorString->release();
+       return value;
+}
+
 bool IOUserClient::init()
 {
-    if( getPropertyTable())
-        return true;
-    else
-        return super::init();
+       if (getPropertyTable() || super::init())
+               return reserve();
+       
+       return false;
 }
 
 bool IOUserClient::init(OSDictionary * dictionary)
 {
-    if( getPropertyTable())
-        return true;
-    else
-        return super::init(dictionary);
+       if (getPropertyTable() || super::init(dictionary))
+               return reserve();
+       
+       return false;
 }
 
 bool IOUserClient::initWithTask(task_t owningTask,
                                 void * securityID,
                                 UInt32 type )
-{
-    if( getPropertyTable())
-        return true;
-    else
-        return super::init();
+{      
+       if (getPropertyTable() || super::init())
+               return reserve();
+       
+       return false;
 }
 
 bool IOUserClient::initWithTask(task_t owningTask,
@@ -972,11 +1270,30 @@ bool IOUserClient::initWithTask(task_t owningTask,
     return( ok );
 }
 
+bool IOUserClient::reserve()
+{              
+    if(!reserved) {
+       reserved = IONew(ExpansionData, 1);
+       if (!reserved) {
+           return false;
+       }
+    }
+    setTerminateDefer(NULL, true);
+    IOStatisticsRegisterCounter();
+    
+    return true;
+}
+
 void IOUserClient::free()
 {
     if( mappings)
         mappings->release();
+               
+    IOStatisticsUnregisterCounter();
 
+    if (reserved)
+        IODelete(reserved, ExpansionData, 1);
+               
     super::free();
 }
 
@@ -1070,7 +1387,6 @@ IOReturn IOUserClient::exportObjectToClient(task_t task,
     mach_port_name_t   name;
 
     name = IOMachPort::makeSendRightForTask( task, obj, IKOT_IOKIT_OBJECT );
-    assert( name );
 
     *(mach_port_name_t *)clientObj = name;
     return kIOReturnSuccess;
@@ -1164,8 +1480,20 @@ IOReturn IOUserClient::sendAsyncResult(OSAsyncReference reference,
     return (sendAsyncResult64(reference64, result, args64, numArgs));
 }
 
+IOReturn IOUserClient::sendAsyncResult64WithOptions(OSAsyncReference64 reference,
+                                        IOReturn result, io_user_reference_t args[], UInt32 numArgs, IOOptionBits options)
+{
+       return _sendAsyncResult64(reference, result, args, numArgs, options);
+}
+
 IOReturn IOUserClient::sendAsyncResult64(OSAsyncReference64 reference,
                                         IOReturn result, io_user_reference_t args[], UInt32 numArgs)
+{
+        return _sendAsyncResult64(reference, result, args, numArgs, 0);
+}
+
+IOReturn IOUserClient::_sendAsyncResult64(OSAsyncReference64 reference,
+                                        IOReturn result, io_user_reference_t args[], UInt32 numArgs, IOOptionBits options)
 {
     struct ReplyMsg
     {
@@ -1238,9 +1566,15 @@ IOReturn IOUserClient::sendAsyncResult64(OSAsyncReference64 reference,
            replyMsg.m.msg32.args[idx] = REF32(args[idx]);
     }
 
-     kr = mach_msg_send_from_kernel_proper( &replyMsg.msgHdr,
-            replyMsg.msgHdr.msgh_size);
-    if( KERN_SUCCESS != kr)
+       if ((options & kIOUserNotifyOptionCanDrop) != 0) { 
+               kr = mach_msg_send_from_kernel_with_options( &replyMsg.msgHdr,
+                                                                                replyMsg.msgHdr.msgh_size, MACH_SEND_TIMEOUT, MACH_MSG_TIMEOUT_NONE);
+       } else {
+               /* Fail on full queue. */
+               kr = mach_msg_send_from_kernel_proper( &replyMsg.msgHdr,
+                                                                                replyMsg.msgHdr.msgh_size);
+       }
+    if ((KERN_SUCCESS != kr) && (MACH_SEND_TIMED_OUT != kr))
         IOLog("%s: mach_msg_send_from_kernel_proper {%x}\n", __FILE__, kr );
     return kr;
 }
@@ -1255,22 +1589,68 @@ extern "C" {
        if( !(out = OSDynamicCast( cls, obj)))  \
            return( kIOReturnBadArgument )
 
+#define CHECKLOCKED(cls,obj,out)                                       \
+       IOUserIterator * oIter;                                         \
+       cls * out;                                                      \
+       if( !(oIter = OSDynamicCast(IOUserIterator, obj)))              \
+           return (kIOReturnBadArgument);                              \
+       if( !(out = OSDynamicCast(cls, oIter->userIteratorObject)))     \
+           return (kIOReturnBadArgument)
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+// Create a vm_map_copy_t or kalloc'ed data for memory
+// to be copied out. ipc will free after the copyout.
+
+static kern_return_t copyoutkdata( const void * data, vm_size_t len,
+                                    io_buf_ptr_t * buf )
+{
+    kern_return_t      err;
+    vm_map_copy_t      copy;
+
+    err = vm_map_copyin( kernel_map, CAST_USER_ADDR_T(data), len,
+                    false /* src_destroy */, &copy);
+
+    assert( err == KERN_SUCCESS );
+    if( err == KERN_SUCCESS )
+        *buf = (char *) copy;
+
+    return( err );
+}
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/* Routine io_server_version */
+kern_return_t is_io_server_version(
+       mach_port_t master_port,
+       uint64_t *version)
+{
+    *version = IOKIT_SERVER_VERSION;
+    return (kIOReturnSuccess);
+}
+
 /* Routine io_object_get_class */
 kern_return_t is_io_object_get_class(
-       io_object_t object,
-       io_name_t className )
+    io_object_t object,
+    io_name_t className )
 {
-       const OSMetaClass* my_obj = NULL;
+    const OSMetaClass* my_obj = NULL;
+    const char * my_class_name = NULL;
        
-       if( !object)
-               return( kIOReturnBadArgument );
+    if( !object)
+        return( kIOReturnBadArgument );
                
-       my_obj = object->getMetaClass();
-       if (!my_obj) {
-               return (kIOReturnNotFound);
-       }
+    if ( !my_class_name ) {
+        my_obj = object->getMetaClass();
+        if (!my_obj) {
+            return (kIOReturnNotFound);
+        }
+
+        my_class_name = my_obj->getClassName();
+    }
        
-    strlcpy( className, my_obj->getClassName(), sizeof(io_name_t));
+    strlcpy( className, my_class_name, sizeof(io_name_t));
+
     return( kIOReturnSuccess );
 }
 
@@ -1364,6 +1744,7 @@ kern_return_t is_io_object_conforms_to(
         return( kIOReturnBadArgument );
 
     *conforms = (0 != object->metaCast( className ));
+
     return( kIOReturnSuccess );
 }
 
@@ -1384,6 +1765,7 @@ kern_return_t is_io_iterator_next(
        io_object_t iterator,
        io_object_t *object )
 {
+    IOReturn    ret;
     OSObject * obj;
 
     CHECK( OSIterator, iterator, iter );
@@ -1392,9 +1774,11 @@ kern_return_t is_io_iterator_next(
     if( obj) {
        obj->retain();
        *object = obj;
-        return( kIOReturnSuccess );
+        ret = kIOReturnSuccess;
     } else
-        return( kIOReturnNoDevice );
+        ret = kIOReturnNoDevice;
+
+    return (ret);
 }
 
 /* Routine io_iterator_reset */
@@ -1420,11 +1804,12 @@ kern_return_t is_io_iterator_is_valid(
     return( kIOReturnSuccess );
 }
 
-/* Routine io_service_match_property_table */
-kern_return_t is_io_service_match_property_table(
+
+static kern_return_t internal_io_service_match_property_table(
        io_service_t _service,
-       io_string_t matching,
-       boolean_t *matches )
+       const char * matching,
+       mach_msg_type_number_t matching_size,
+       boolean_t *matches)
 {
     CHECK( IOService, _service, service );
 
@@ -1432,9 +1817,10 @@ kern_return_t is_io_service_match_property_table(
     OSObject *         obj;
     OSDictionary *     dict;
 
-    obj = OSUnserializeXML( matching );
-
+    obj = matching_size ? OSUnserializeXML(matching, matching_size)
+                       : OSUnserializeXML(matching);
     if( (dict = OSDynamicCast( OSDictionary, obj))) {
+
         *matches = service->passiveMatch( dict );
        kr = kIOReturnSuccess;
     } else
@@ -1446,6 +1832,16 @@ kern_return_t is_io_service_match_property_table(
     return( kr );
 }
 
+/* Routine io_service_match_property_table */
+kern_return_t is_io_service_match_property_table(
+       io_service_t service,
+       io_string_t matching,
+       boolean_t *matches )
+{
+    return (internal_io_service_match_property_table(service, matching, 0, matches));
+}
+
+
 /* Routine io_service_match_property_table_ool */
 kern_return_t is_io_service_match_property_table_ool(
        io_object_t service,
@@ -1463,18 +1859,28 @@ kern_return_t is_io_service_match_property_table_ool(
 
     if( KERN_SUCCESS == kr) {
         // must return success after vm_map_copyout() succeeds
-       *result = is_io_service_match_property_table( service,
-               (char *) data, matches );
+       *result = internal_io_service_match_property_table(service,
+               (const char *)data, matchingCnt, matches );
        vm_deallocate( kernel_map, data, matchingCnt );
     }
 
     return( kr );
 }
 
-/* Routine io_service_get_matching_services */
-kern_return_t is_io_service_get_matching_services(
+/* Routine io_service_match_property_table_bin */
+kern_return_t is_io_service_match_property_table_bin(
+       io_object_t service,
+       io_struct_inband_t matching,
+       mach_msg_type_number_t matchingCnt,
+       boolean_t *matches)
+{
+    return (internal_io_service_match_property_table(service, matching, matchingCnt, matches));
+}
+
+static kern_return_t internal_io_service_get_matching_services(
        mach_port_t master_port,
-       io_string_t matching,
+       const char * matching,
+       mach_msg_type_number_t matching_size,
        io_iterator_t *existing )
 {
     kern_return_t      kr;
@@ -1484,10 +1890,10 @@ kern_return_t is_io_service_get_matching_services(
     if( master_port != master_device_port)
         return( kIOReturnNotPrivileged);
 
-    obj = OSUnserializeXML( matching );
-
+    obj = matching_size ? OSUnserializeXML(matching, matching_size)
+                       : OSUnserializeXML(matching);
     if( (dict = OSDynamicCast( OSDictionary, obj))) {
-        *existing = IOService::getMatchingServices( dict );
+        *existing = IOUserIterator::withIterator(IOService::getMatchingServices( dict ));
        kr = kIOReturnSuccess;
     } else
        kr = kIOReturnBadArgument;
@@ -1498,6 +1904,15 @@ kern_return_t is_io_service_get_matching_services(
     return( kr );
 }
 
+/* Routine io_service_get_matching_services */
+kern_return_t is_io_service_get_matching_services(
+       mach_port_t master_port,
+       io_string_t matching,
+       io_iterator_t *existing )
+{
+    return (internal_io_service_get_matching_services(master_port, matching, 0, existing));
+}
+
 /* Routine io_service_get_matching_services_ool */
 kern_return_t is_io_service_get_matching_services_ool(
        mach_port_t master_port,
@@ -1515,43 +1930,133 @@ kern_return_t is_io_service_get_matching_services_ool(
 
     if( KERN_SUCCESS == kr) {
         // must return success after vm_map_copyout() succeeds
-       *result = is_io_service_get_matching_services( master_port,
-                       (char *) data, existing );
+       *result = internal_io_service_get_matching_services(master_port,
+                       (const char *) data, matchingCnt, existing);
        vm_deallocate( kernel_map, data, matchingCnt );
     }
 
     return( kr );
 }
 
-static kern_return_t internal_io_service_add_notification(
+/* Routine io_service_get_matching_services_bin */
+kern_return_t is_io_service_get_matching_services_bin(
        mach_port_t master_port,
-       io_name_t notification_type,
-       io_string_t matching,
-       mach_port_t port,
-       void * reference,
-       vm_size_t referenceSize,
-       bool client64,
-       io_object_t * notification )
+       io_struct_inband_t matching,
+       mach_msg_type_number_t matchingCnt,
+       io_object_t *existing)
 {
-    IOServiceUserNotification *        userNotify = 0;
-    IONotifier *               notify = 0;
-    const OSSymbol *           sym;
-    OSDictionary *             dict;
-    IOReturn                   err;
-    unsigned long int          userMsgType;
-
+    return (internal_io_service_get_matching_services(master_port, matching, matchingCnt, existing));
+}
 
-    if( master_port != master_device_port)
-        return( kIOReturnNotPrivileged);
 
-    do {
-        err = kIOReturnNoResources;
+static kern_return_t internal_io_service_get_matching_service(
+       mach_port_t master_port,
+       const char * matching,
+       mach_msg_type_number_t matching_size,
+       io_service_t *service )
+{
+    kern_return_t      kr;
+    OSObject *         obj;
+    OSDictionary *     dict;
+
+    if( master_port != master_device_port)
+        return( kIOReturnNotPrivileged);
+
+    obj = matching_size ? OSUnserializeXML(matching, matching_size)
+                       : OSUnserializeXML(matching);
+    if( (dict = OSDynamicCast( OSDictionary, obj))) {
+        *service = IOService::copyMatchingService( dict );
+       kr = *service ? kIOReturnSuccess : kIOReturnNotFound;
+    } else
+       kr = kIOReturnBadArgument;
+
+    if( obj)
+        obj->release();
+
+    return( kr );
+}
+
+/* Routine io_service_get_matching_service */
+kern_return_t is_io_service_get_matching_service(
+       mach_port_t master_port,
+       io_string_t matching,
+       io_service_t *service )
+{
+    return (internal_io_service_get_matching_service(master_port, matching, 0, service));
+}
+
+/* Routine io_service_get_matching_services_ool */
+kern_return_t is_io_service_get_matching_service_ool(
+       mach_port_t master_port,
+       io_buf_ptr_t matching,
+       mach_msg_type_number_t matchingCnt,
+       kern_return_t *result,
+       io_object_t *service )
+{
+    kern_return_t      kr;
+    vm_offset_t        data;
+    vm_map_offset_t    map_data;
+
+    kr = vm_map_copyout( kernel_map, &map_data, (vm_map_copy_t) matching );
+    data = CAST_DOWN(vm_offset_t, map_data);
+
+    if( KERN_SUCCESS == kr) {
+        // must return success after vm_map_copyout() succeeds
+       *result = internal_io_service_get_matching_service(master_port,
+                       (const char *) data, matchingCnt, service );
+       vm_deallocate( kernel_map, data, matchingCnt );
+    }
+
+    return( kr );
+}
+
+/* Routine io_service_get_matching_service_bin */
+kern_return_t is_io_service_get_matching_service_bin(
+       mach_port_t master_port,
+       io_struct_inband_t matching,
+       mach_msg_type_number_t matchingCnt,
+       io_object_t *service)
+{
+    return (internal_io_service_get_matching_service(master_port, matching, matchingCnt, service));
+}
+
+static kern_return_t internal_io_service_add_notification(
+       mach_port_t master_port,
+       io_name_t notification_type,
+       const char * matching,
+       size_t matching_size,
+       mach_port_t port,
+       void * reference,
+       vm_size_t referenceSize,
+       bool client64,
+       io_object_t * notification )
+{
+    IOServiceUserNotification *        userNotify = 0;
+    IONotifier *               notify = 0;
+    const OSSymbol *           sym;
+    OSDictionary *             dict;
+    IOReturn                   err;
+    unsigned long int          userMsgType;
+
+    if( master_port != master_device_port)
+        return( kIOReturnNotPrivileged);
+
+    do {
+        err = kIOReturnNoResources;
 
         if( !(sym = OSSymbol::withCString( notification_type )))
            err = kIOReturnNoResources;
 
-        if( !(dict = OSDynamicCast( OSDictionary,
-                    OSUnserializeXML( matching )))) {
+       if (matching_size)
+       {
+            dict = OSDynamicCast(OSDictionary, OSUnserializeXML(matching, matching_size));
+       }
+       else
+       {
+           dict = OSDynamicCast(OSDictionary, OSUnserializeXML(matching));
+       }
+
+        if (!dict) {
             err = kIOReturnBadArgument;
            continue;
        }
@@ -1571,6 +2076,7 @@ static kern_return_t internal_io_service_add_notification(
 
         if( userNotify && !userNotify->init( port, userMsgType,
                                              reference, referenceSize, client64)) {
+                       iokit_release_port_send(port);
             userNotify->release();
             userNotify = 0;
         }
@@ -1608,7 +2114,7 @@ kern_return_t is_io_service_add_notification(
        io_object_t * notification )
 {
     return (internal_io_service_add_notification(master_port, notification_type, 
-               matching, port, &reference[0], sizeof(io_async_ref_t),
+               matching, 0, port, &reference[0], sizeof(io_async_ref_t),
                false, notification));
 }
 
@@ -1623,10 +2129,43 @@ kern_return_t is_io_service_add_notification_64(
        io_object_t *notification )
 {
     return (internal_io_service_add_notification(master_port, notification_type, 
-               matching, wake_port, &reference[0], sizeof(io_async_ref64_t),
+               matching, 0, wake_port, &reference[0], sizeof(io_async_ref64_t),
                true, notification));
 }
 
+/* Routine io_service_add_notification_bin */
+kern_return_t is_io_service_add_notification_bin
+(
+       mach_port_t master_port,
+       io_name_t notification_type,
+       io_struct_inband_t matching,
+       mach_msg_type_number_t matchingCnt,
+       mach_port_t wake_port,
+       io_async_ref_t reference,
+       mach_msg_type_number_t referenceCnt,
+       io_object_t *notification)
+{
+    return (internal_io_service_add_notification(master_port, notification_type, 
+               matching, matchingCnt, wake_port, &reference[0], sizeof(io_async_ref_t),
+               false, notification));
+}
+
+/* Routine io_service_add_notification_bin_64 */
+kern_return_t is_io_service_add_notification_bin_64
+(
+       mach_port_t master_port,
+       io_name_t notification_type,
+       io_struct_inband_t matching,
+       mach_msg_type_number_t matchingCnt,
+       mach_port_t wake_port,
+       io_async_ref64_t reference,
+       mach_msg_type_number_t referenceCnt,
+       io_object_t *notification)
+{
+    return (internal_io_service_add_notification(master_port, notification_type, 
+               matching, matchingCnt, wake_port, &reference[0], sizeof(io_async_ref64_t),
+               true, notification));
+}
 
 static kern_return_t internal_io_service_add_notification_ool(
        mach_port_t master_port,
@@ -1650,7 +2189,7 @@ static kern_return_t internal_io_service_add_notification_ool(
     if( KERN_SUCCESS == kr) {
         // must return success after vm_map_copyout() succeeds
        *result = internal_io_service_add_notification( master_port, notification_type,
-                       (char *) data, wake_port, reference, referenceSize, client64, notification );
+                       (char *) data, matchingCnt, wake_port, reference, referenceSize, client64, notification );
        vm_deallocate( kernel_map, data, matchingCnt );
     }
 
@@ -1732,6 +2271,7 @@ static kern_return_t internal_io_service_add_interest_notification(
                                              reference, referenceSize,
                                             kIOUserNotifyMaxMessageSize,
                                             client64 )) {
+                       iokit_release_port_send(port);
             userNotify->release();
             userNotify = 0;
         }
@@ -1789,7 +2329,7 @@ kern_return_t is_io_service_acknowledge_notification(
 {
     CHECK( IOService, _service, service );
 
-    return( service->acknowledgeNotification( (IONotificationRef) notify_ref,
+    return( service->acknowledgeNotification( (IONotificationRef)(uintptr_t) notify_ref,
                                               (IOOptionBits) response ));
     
 }
@@ -1802,6 +2342,7 @@ kern_return_t is_io_connect_get_notification_semaphore(
 {
     CHECK( IOUserClient, connection, client );
 
+    IOStatisticsClientCall();
     return( client->getNotificationSemaphore( (UInt32) notification_type,
                                               semaphore ));
 }
@@ -1834,8 +2375,9 @@ kern_return_t is_io_registry_create_iterator(
     if( master_port != master_device_port)
         return( kIOReturnNotPrivileged);
 
-    *iterator = IORegistryIterator::iterateOver(
-       IORegistryEntry::getPlane( plane ), options );
+    *iterator = IOUserIterator::withIterator(
+       IORegistryIterator::iterateOver(
+               IORegistryEntry::getPlane( plane ), options ));
 
     return( *iterator ? kIOReturnSuccess : kIOReturnBadArgument );
 }
@@ -1849,8 +2391,9 @@ kern_return_t is_io_registry_entry_create_iterator(
 {
     CHECK( IORegistryEntry, registry_entry, entry );
 
-    *iterator = IORegistryIterator::iterateOver( entry,
-       IORegistryEntry::getPlane( plane ), options );
+    *iterator = IOUserIterator::withIterator(
+       IORegistryIterator::iterateOver( entry,
+               IORegistryEntry::getPlane( plane ), options ));
 
     return( *iterator ? kIOReturnSuccess : kIOReturnBadArgument );
 }
@@ -1859,9 +2402,11 @@ kern_return_t is_io_registry_entry_create_iterator(
 kern_return_t is_io_registry_iterator_enter_entry(
        io_object_t iterator )
 {
-    CHECK( IORegistryIterator, iterator, iter );
+    CHECKLOCKED( IORegistryIterator, iterator, iter );
 
+    IOLockLock(oIter->lock);
     iter->enterEntry();
+    IOLockUnlock(oIter->lock);
 
     return( kIOReturnSuccess );
 }
@@ -1872,9 +2417,11 @@ kern_return_t is_io_registry_iterator_exit_entry(
 {
     bool       didIt;
 
-    CHECK( IORegistryIterator, iterator, iter );
+    CHECKLOCKED( IORegistryIterator, iterator, iter );
 
+    IOLockLock(oIter->lock);
     didIt = iter->exitEntry();
+    IOLockUnlock(oIter->lock);
 
     return( didIt ? kIOReturnSuccess : kIOReturnNoDevice );
 }
@@ -1897,6 +2444,58 @@ kern_return_t is_io_registry_entry_from_path(
     return( kIOReturnSuccess );
 }
 
+
+/* Routine io_registry_entry_from_path */
+kern_return_t is_io_registry_entry_from_path_ool(
+       mach_port_t master_port,
+       io_string_inband_t path,
+       io_buf_ptr_t path_ool,
+       mach_msg_type_number_t path_oolCnt,
+       kern_return_t *result,
+       io_object_t *registry_entry)
+{
+    IORegistryEntry *  entry;
+    vm_map_offset_t    map_data;
+    const char *       cpath;
+    IOReturn            res;
+    kern_return_t       err;
+
+    if (master_port != master_device_port) return(kIOReturnNotPrivileged);
+
+    map_data = 0;
+    entry    = 0;
+    res = err = KERN_SUCCESS;
+    if (path[0]) cpath = path;
+    else
+    {
+       if (!path_oolCnt)                                      return(kIOReturnBadArgument);
+       if (path_oolCnt > (sizeof(io_struct_inband_t) * 1024)) return(kIOReturnMessageTooLarge);
+
+       err = vm_map_copyout(kernel_map, &map_data, (vm_map_copy_t) path_ool);
+       if (KERN_SUCCESS == err)
+       {
+           // must return success to mig after vm_map_copyout() succeeds, so result is actual
+           cpath = CAST_DOWN(const char *, map_data);
+           if (cpath[path_oolCnt - 1]) res = kIOReturnBadArgument;
+       }
+    }
+
+    if ((KERN_SUCCESS == err) && (KERN_SUCCESS == res))
+    {
+       entry = IORegistryEntry::fromPath(cpath);
+       res = entry ? kIOReturnSuccess : kIOReturnNotFound;
+    }
+
+    if (map_data) vm_deallocate(kernel_map, map_data, path_oolCnt);
+
+    if (KERN_SUCCESS != err) res = err;
+    *registry_entry = entry;
+    *result = res;
+
+    return (err);
+}
+
+
 /* Routine io_registry_entry_in_plane */
 kern_return_t is_io_registry_entry_in_plane(
        io_object_t registry_entry,
@@ -1927,6 +2526,42 @@ kern_return_t is_io_registry_entry_get_path(
        return( kIOReturnBadArgument );
 }
 
+/* Routine io_registry_entry_get_path */
+kern_return_t is_io_registry_entry_get_path_ool(
+       io_object_t registry_entry,
+       io_name_t plane,
+       io_string_inband_t path,
+       io_buf_ptr_t *path_ool,
+       mach_msg_type_number_t *path_oolCnt)
+{
+    enum   { kMaxPath = 16384 };
+    IOReturn err;
+    int      length;
+    char   * buf;
+
+    CHECK( IORegistryEntry, registry_entry, entry );
+
+    *path_ool    = NULL;
+    *path_oolCnt = 0;
+    length = sizeof(io_string_inband_t);
+    if (entry->getPath(path, &length, IORegistryEntry::getPlane(plane))) err = kIOReturnSuccess;
+    else
+    {
+       length = kMaxPath;
+       buf = IONew(char, length);
+       if (!buf) err = kIOReturnNoMemory;
+       else if (!entry->getPath(buf, &length, IORegistryEntry::getPlane(plane))) err = kIOReturnError;
+       else
+       {
+           *path_oolCnt = length;
+           err = copyoutkdata(buf, length, path_ool);
+       }
+       if (buf) IODelete(buf, char, kMaxPath);
+    }
+
+    return (err);
+}
+
 
 /* Routine io_registry_entry_get_name */
 kern_return_t is_io_registry_entry_get_name(
@@ -1994,25 +2629,6 @@ kern_return_t is_io_registry_entry_get_registry_entry_id(
     return (kIOReturnSuccess);
 }
 
-// Create a vm_map_copy_t or kalloc'ed data for memory
-// to be copied out. ipc will free after the copyout.
-
-static kern_return_t copyoutkdata( void * data, vm_size_t len,
-                                    io_buf_ptr_t * buf )
-{
-    kern_return_t      err;
-    vm_map_copy_t      copy;
-
-    err = vm_map_copyin( kernel_map, CAST_USER_ADDR_T(data), len,
-                    false /* src_destroy */, &copy);
-
-    assert( err == KERN_SUCCESS );
-    if( err == KERN_SUCCESS )
-        *buf = (char *) copy;
-
-    return( err );
-}
-
 /* Routine io_registry_entry_get_property */
 kern_return_t is_io_registry_entry_get_property_bytes(
        io_object_t registry_entry,
@@ -2032,6 +2648,11 @@ kern_return_t is_io_registry_entry_get_property_bytes(
 
     CHECK( IORegistryEntry, registry_entry, entry );
 
+#if CONFIG_MACF
+    if (0 != mac_iokit_check_get_property(kauth_cred_get(), entry, property_name))
+        return kIOReturnNotPermitted;
+#endif
+
     obj = entry->copyProperty(property_name);
     if( !obj)
         return( kIOReturnNoResources );
@@ -2089,66 +2710,289 @@ kern_return_t is_io_registry_entry_get_property(
 
     CHECK( IORegistryEntry, registry_entry, entry );
 
-    obj = entry->copyProperty(property_name);
-    if( !obj)
-        return( kIOReturnNotFound );
+#if CONFIG_MACF
+    if (0 != mac_iokit_check_get_property(kauth_cred_get(), entry, property_name))
+        return kIOReturnNotPermitted;
+#endif
+
+    obj = entry->copyProperty(property_name);
+    if( !obj)
+        return( kIOReturnNotFound );
+
+    OSSerialize * s = OSSerialize::withCapacity(4096);
+    if( !s) {
+        obj->release();
+       return( kIOReturnNoMemory );
+    }
+
+    if( obj->serialize( s )) {
+        len = s->getLength();
+        *propertiesCnt = len;
+        err = copyoutkdata( s->text(), len, properties );
+
+    } else
+        err = kIOReturnUnsupported;
+
+    s->release();
+    obj->release();
+
+    return( err );
+}
+
+/* Routine io_registry_entry_get_property_recursively */
+kern_return_t is_io_registry_entry_get_property_recursively(
+       io_object_t registry_entry,
+       io_name_t plane,
+       io_name_t property_name,
+        uint32_t options,
+       io_buf_ptr_t *properties,
+       mach_msg_type_number_t *propertiesCnt )
+{
+    kern_return_t      err;
+    vm_size_t          len;
+    OSObject *         obj;
+
+    CHECK( IORegistryEntry, registry_entry, entry );
+
+#if CONFIG_MACF
+    if (0 != mac_iokit_check_get_property(kauth_cred_get(), entry, property_name))
+        return kIOReturnNotPermitted;
+#endif
+
+    obj = entry->copyProperty( property_name,
+                               IORegistryEntry::getPlane( plane ), options);
+    if( !obj)
+        return( kIOReturnNotFound );
+
+    OSSerialize * s = OSSerialize::withCapacity(4096);
+    if( !s) {
+        obj->release();
+       return( kIOReturnNoMemory );
+    }
+
+    if( obj->serialize( s )) {
+        len = s->getLength();
+        *propertiesCnt = len;
+        err = copyoutkdata( s->text(), len, properties );
+
+    } else
+        err = kIOReturnUnsupported;
+
+    s->release();
+    obj->release();
+
+    return( err );
+}
+
+#if CONFIG_MACF
+
+static kern_return_t
+filteredProperties(IORegistryEntry *entry, OSDictionary *properties, OSDictionary **filteredp)
+{
+    kern_return_t      err = 0;
+    OSDictionary       *filtered = NULL;
+    OSCollectionIterator *iter = NULL;
+    OSSymbol           *key;
+    OSObject           *p;
+    kauth_cred_t       cred = kauth_cred_get();
+
+    if (properties == NULL)
+       return kIOReturnUnsupported;
+
+    if ((iter = OSCollectionIterator::withCollection(properties)) == NULL ||
+        (filtered = OSDictionary::withCapacity(properties->getCapacity())) == NULL) {
+       err = kIOReturnNoMemory;
+       goto out;
+    }
+
+    while ((p = iter->getNextObject()) != NULL) {
+       if ((key = OSDynamicCast(OSSymbol, p)) == NULL ||
+           mac_iokit_check_get_property(cred, entry, key->getCStringNoCopy()) != 0)
+           continue;
+       filtered->setObject(key, properties->getObject(key));
+    }
+
+out:
+    if (iter != NULL)
+       iter->release();
+    *filteredp = filtered;
+    return err;
+}
+
+#endif
+
+/* Routine io_registry_entry_get_properties */
+kern_return_t is_io_registry_entry_get_properties(
+       io_object_t registry_entry,
+       io_buf_ptr_t *properties,
+       mach_msg_type_number_t *propertiesCnt )
+{
+    kern_return_t      err = 0;
+    vm_size_t          len;
+
+    CHECK( IORegistryEntry, registry_entry, entry );
+
+    OSSerialize * s = OSSerialize::withCapacity(4096);
+    if( !s)
+       return( kIOReturnNoMemory );
+
+    if (!entry->serializeProperties(s))
+       err = kIOReturnUnsupported;
+
+#if CONFIG_MACF
+    if (!err && mac_iokit_check_filter_properties(kauth_cred_get(), entry)) {
+       OSObject *propobj = OSUnserializeXML(s->text(), s->getLength());
+       OSDictionary *filteredprops = NULL;
+       err = filteredProperties(entry, OSDynamicCast(OSDictionary, propobj), &filteredprops);
+       if (propobj) propobj->release();
+
+       if (!err) {
+           s->clearText();
+           if (!filteredprops->serialize(s))
+               err = kIOReturnUnsupported;
+       }
+       if (filteredprops != NULL)
+           filteredprops->release();
+    }
+#endif /* CONFIG_MACF */
+
+    if (!err) {
+       len = s->getLength();
+       *propertiesCnt = len;
+       err = copyoutkdata( s->text(), len, properties );
+    }
+
+    s->release();
+    return( err );
+}
+
+#if CONFIG_MACF
+
+struct GetPropertiesEditorRef
+{
+    kauth_cred_t      cred;
+    IORegistryEntry * entry;
+    OSCollection    * root;
+};
+
+static const OSMetaClassBase *
+GetPropertiesEditor(void                  * reference,
+                                       OSSerialize           * s, 
+                                       OSCollection          * container, 
+                                       const OSSymbol        * name,
+                                       const OSMetaClassBase * value)
+{
+    GetPropertiesEditorRef * ref = (typeof(ref)) reference;
+
+    if (!ref->root) ref->root = container;
+    if (ref->root == container)
+       {
+               if (0 != mac_iokit_check_get_property(ref->cred, ref->entry, name->getCStringNoCopy())) 
+               {
+                       value = 0;
+               }
+       }
+       if (value) value->retain();
+    return (value);
+}
+
+#endif /* CONFIG_MACF */
+
+/* Routine io_registry_entry_get_properties */
+kern_return_t is_io_registry_entry_get_properties_bin(
+       io_object_t registry_entry,
+       io_buf_ptr_t *properties,
+       mach_msg_type_number_t *propertiesCnt)
+{
+    kern_return_t             err = kIOReturnSuccess;
+    vm_size_t                 len;
+    OSSerialize          * s;
+    OSSerialize::Editor    editor = 0;
+    void                 * editRef = 0;
+
+    CHECK(IORegistryEntry, registry_entry, entry);
 
-    OSSerialize * s = OSSerialize::withCapacity(4096);
-    if( !s) {
-        obj->release();
-       return( kIOReturnNoMemory );
+#if CONFIG_MACF
+    GetPropertiesEditorRef ref;
+    if (mac_iokit_check_filter_properties(kauth_cred_get(), entry))
+    {
+       editor    = &GetPropertiesEditor;
+       editRef   = &ref;
+       ref.cred  = kauth_cred_get();
+       ref.entry = entry;
+       ref.root  = 0;
     }
-    s->clearText();
+#endif
 
-    if( obj->serialize( s )) {
-        len = s->getLength();
-        *propertiesCnt = len;
-        err = copyoutkdata( s->text(), len, properties );
+    s = OSSerialize::binaryWithCapacity(4096, editor, editRef);
+    if (!s) return (kIOReturnNoMemory);
 
-    } else
-        err = kIOReturnUnsupported;
+    if (!entry->serializeProperties(s)) err = kIOReturnUnsupported;
 
+    if (kIOReturnSuccess == err)
+    {
+               len = s->getLength();
+               *propertiesCnt = len;
+               err = copyoutkdata(s->text(), len, properties);
+    }
     s->release();
-    obj->release();
 
-    return( err );
+    return (err);
 }
 
-/* Routine io_registry_entry_get_property_recursively */
-kern_return_t is_io_registry_entry_get_property_recursively(
+/* Routine io_registry_entry_get_property_bin */
+kern_return_t is_io_registry_entry_get_property_bin(
        io_object_t registry_entry,
        io_name_t plane,
        io_name_t property_name,
-        uint32_t options,
+       uint32_t options,
        io_buf_ptr_t *properties,
        mach_msg_type_number_t *propertiesCnt )
 {
     kern_return_t      err;
     vm_size_t          len;
     OSObject *         obj;
+    const OSSymbol *    sym;
 
     CHECK( IORegistryEntry, registry_entry, entry );
 
-    obj = entry->copyProperty( property_name,
-                               IORegistryEntry::getPlane( plane ), options);
+#if CONFIG_MACF
+    if (0 != mac_iokit_check_get_property(kauth_cred_get(), entry, property_name))
+        return kIOReturnNotPermitted;
+#endif
+
+    if ((kIORegistryIterateRecursively & options) && plane[0])
+    {
+       obj = entry->copyProperty(property_name,
+                                 IORegistryEntry::getPlane(plane), options);
+    }
+    else
+    {
+       obj = entry->copyProperty(property_name);
+    }
+
     if( !obj)
         return( kIOReturnNotFound );
 
-    OSSerialize * s = OSSerialize::withCapacity(4096);
+    sym = OSSymbol::withCString(property_name);
+    if (sym)
+    {
+        if (gIORemoveOnReadProperties->containsObject(sym)) entry->removeProperty(sym);
+        sym->release();
+    }
+
+    OSSerialize * s = OSSerialize::binaryWithCapacity(4096);
     if( !s) {
         obj->release();
        return( kIOReturnNoMemory );
     }
 
-    s->clearText();
-
     if( obj->serialize( s )) {
         len = s->getLength();
         *propertiesCnt = len;
         err = copyoutkdata( s->text(), len, properties );
 
-    } else
-        err = kIOReturnUnsupported;
+    } else err = kIOReturnUnsupported; 
 
     s->release();
     obj->release();
@@ -2156,35 +3000,6 @@ kern_return_t is_io_registry_entry_get_property_recursively(
     return( err );
 }
 
-/* Routine io_registry_entry_get_properties */
-kern_return_t is_io_registry_entry_get_properties(
-       io_object_t registry_entry,
-       io_buf_ptr_t *properties,
-       mach_msg_type_number_t *propertiesCnt )
-{
-    kern_return_t      err;
-    vm_size_t          len;
-
-    CHECK( IORegistryEntry, registry_entry, entry );
-
-    OSSerialize * s = OSSerialize::withCapacity(4096);
-    if( !s)
-       return( kIOReturnNoMemory );
-
-    s->clearText();
-
-    if( entry->serializeProperties( s )) {
-        len = s->getLength();
-        *propertiesCnt = len;
-        err = copyoutkdata( s->text(), len, properties );
-
-    } else
-        err = kIOReturnUnsupported;
-
-    s->release();
-
-    return( err );
-}
 
 /* Routine io_registry_entry_set_properties */
 kern_return_t is_io_registry_entry_set_properties
@@ -2202,20 +3017,34 @@ kern_return_t is_io_registry_entry_set_properties
 
     CHECK( IORegistryEntry, registry_entry, entry );
 
+    if( propertiesCnt > sizeof(io_struct_inband_t) * 1024)
+        return( kIOReturnMessageTooLarge);
+
     err = vm_map_copyout( kernel_map, &map_data, (vm_map_copy_t) properties );
     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 );
+        obj = OSUnserializeXML( (const char *) data, propertiesCnt );
        vm_deallocate( kernel_map, data, propertiesCnt );
 
-        if( obj) {
-            res = entry->setProperties( obj );
-            obj->release();
-        } else
-            res = kIOReturnBadArgument;
+       if (!obj)
+           res = kIOReturnBadArgument;
+#if CONFIG_MACF
+       else if (0 != mac_iokit_check_set_properties(kauth_cred_get(),
+           registry_entry, obj))
+       {
+           res = kIOReturnNotPermitted;
+       }
+#endif
+       else
+       {
+           res = entry->setProperties( obj );
+       }
+
+       if (obj)
+           obj->release();
     } else
         res = err;
 
@@ -2305,28 +3134,33 @@ kern_return_t is_io_service_request_probe(
     return( service->requestProbe( options ));
 }
 
-
-/* Routine io_service_open */
-kern_return_t is_io_service_open(
+/* Routine io_service_get_authorization_id */
+kern_return_t is_io_service_get_authorization_id(
        io_object_t _service,
-       task_t owningTask,
-       uint32_t connect_type,
-       io_object_t *connection )
+       uint64_t *authorization_id )
 {
-    IOUserClient       *       client;
-    IOReturn                   err;
+    kern_return_t         kr;
 
     CHECK( IOService, _service, service );
 
-    err = service->newUserClient( owningTask, (void *) owningTask,
-               connect_type, 0, &client );
+    kr = IOUserClient::clientHasPrivilege( (void *) current_task(),
+                                            kIOClientPrivilegeAdministrator );
+    if( kIOReturnSuccess != kr)
+        return( kr );
 
-    if( err == kIOReturnSuccess) {
-       assert( OSDynamicCast(IOUserClient, client) );
-       *connection = client;
-    }
+    *authorization_id = service->getAuthorizationID();
 
-    return( err);
+    return( kr );
+}
+
+/* Routine io_service_set_authorization_id */
+kern_return_t is_io_service_set_authorization_id(
+       io_object_t _service,
+       uint64_t authorization_id )
+{
+    CHECK( IOService, _service, service );
+
+    return( service->setAuthorizationID( authorization_id ) );
 }
 
 /* Routine io_service_open_ndr */
@@ -2349,6 +3183,8 @@ kern_return_t is_io_service_open_extended(
 
     CHECK( IOService, _service, service );
 
+    if (!owningTask) return (kIOReturnBadArgument);
+
     do
     {
        if (properties)
@@ -2357,13 +3193,16 @@ kern_return_t is_io_service_open_extended(
            vm_offset_t     data;
            vm_map_offset_t map_data;
 
+           if( propertiesCnt > sizeof(io_struct_inband_t))
+               return( kIOReturnMessageTooLarge);
+
            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 );
+               obj = OSUnserializeXML( (const char *) data, propertiesCnt );
                vm_deallocate( kernel_map, data, propertiesCnt );
                propertiesDict = OSDynamicCast(OSDictionary, obj);
                if (!propertiesDict)
@@ -2404,13 +3243,17 @@ kern_return_t is_io_service_open_extended(
            disallowAccess = (crossEndian
                && (kOSBooleanTrue != service->getProperty(kIOUserClientCrossEndianCompatibleKey))
                && (kOSBooleanTrue != client->getProperty(kIOUserClientCrossEndianCompatibleKey)));
-
-           if (disallowAccess)
+            if (disallowAccess) res = kIOReturnUnsupported;
+#if CONFIG_MACF
+           else if (0 != mac_iokit_check_open(kauth_cred_get(), client, connect_type))
+               res = kIOReturnNotPermitted;
+#endif
+           if (kIOReturnSuccess != res)
            {
+               IOStatisticsClientCall();
                client->clientClose();
                client->release();
                client = 0;
-               res = kIOReturnUnsupported;
                break;
            }
            client->sharedInstance = (0 != client->getProperty(kIOUserClientSharedInstanceKey));
@@ -2420,6 +3263,7 @@ kern_return_t is_io_service_open_extended(
                client->setProperty(kIOUserClientCreatorKey, creatorName);
                creatorName->release();
            }
+           client->setTerminateDefer(service, false);
        }
     }
     while (false);
@@ -2440,6 +3284,7 @@ kern_return_t is_io_service_close(
 
     CHECK( IOUserClient, connection, client );
 
+    IOStatisticsClientCall();
     client->clientClose();
 
     return( kIOReturnSuccess );
@@ -2472,6 +3317,7 @@ kern_return_t is_io_connect_set_notification_port(
 {
     CHECK( IOUserClient, connection, client );
 
+    IOStatisticsClientCall();
     return( client->registerNotificationPort( port, notification_type,
                                                (io_user_reference_t) reference ));
 }
@@ -2485,6 +3331,7 @@ kern_return_t is_io_connect_set_notification_port_64(
 {
     CHECK( IOUserClient, connection, client );
 
+    IOStatisticsClientCall();
     return( client->registerNotificationPort( port, notification_type,
                                                reference ));
 }
@@ -2505,6 +3352,9 @@ kern_return_t is_io_connect_map_memory_into_task
 
     CHECK( IOUserClient, connection, client );
 
+    if (!into_task) return (kIOReturnBadArgument);
+
+    IOStatisticsClientCall();
     map = client->mapClientMemory64( memory_type, into_task, flags, *address );
 
     if( map) {
@@ -2519,7 +3369,6 @@ kern_return_t is_io_connect_map_memory_into_task
            mach_port_name_t name __unused =
                IOMachPort::makeSendRightForTask(
                                     into_task, map, IKOT_IOKIT_OBJECT );
-            assert( name );
 
         } else {
             // keep it with the user client
@@ -2544,8 +3393,8 @@ kern_return_t is_io_connect_map_memory(
        io_object_t     connect,
        uint32_t        type,
        task_t          task,
-       vm_address_t *  mapAddr,
-       vm_size_t    *  mapSize,
+       uint32_t  *     mapAddr,
+       uint32_t  *     mapSize,
        uint32_t        flags )
 {
     IOReturn         err;
@@ -2563,6 +3412,8 @@ kern_return_t is_io_connect_map_memory(
     return (err);
 }
 
+} /* extern "C" */
+
 IOMemoryMap * IOUserClient::removeMappingForDescriptor(IOMemoryDescriptor * mem)
 {
     OSIterator *  iter;
@@ -2590,6 +3441,8 @@ IOMemoryMap * IOUserClient::removeMappingForDescriptor(IOMemoryDescriptor * mem)
     return (map);
 }
 
+extern "C" {
+
 /* Routine io_connect_unmap_memory_from_task */
 kern_return_t is_io_connect_unmap_memory_from_task
 (
@@ -2605,6 +3458,9 @@ kern_return_t is_io_connect_unmap_memory_from_task
 
     CHECK( IOUserClient, connection, client );
 
+    if (!from_task) return (kIOReturnBadArgument);
+
+    IOStatisticsClientCall();
     err = client->clientMemoryForType( (UInt32) memory_type, &options, &memory );
 
     if( memory && (kIOReturnSuccess == err)) {
@@ -2646,7 +3502,7 @@ kern_return_t is_io_connect_unmap_memory(
        io_object_t     connect,
        uint32_t        type,
        task_t          task,
-       vm_address_t    mapAddr )
+       uint32_t        mapAddr )
 {
     IOReturn           err;
     mach_vm_address_t   address;
@@ -2667,6 +3523,7 @@ kern_return_t is_io_connect_add_client(
     CHECK( IOUserClient, connection, client );
     CHECK( IOUserClient, connect_to, to );
 
+    IOStatisticsClientCall();
     return( client->connectClient( to ) );
 }
 
@@ -2681,9 +3538,8 @@ kern_return_t is_io_connect_set_properties(
     return( is_io_registry_entry_set_properties( connection, properties, propertiesCnt, result ));
 }
 
-
 /* Routine io_user_client_method */
-kern_return_t is_io_connect_method
+kern_return_t is_io_connect_method_var_output
 (
        io_connect_t connection,
        uint32_t selector,
@@ -2693,12 +3549,105 @@ kern_return_t is_io_connect_method
        mach_msg_type_number_t inband_inputCnt,
        mach_vm_address_t ool_input,
        mach_vm_size_t ool_input_size,
+       io_struct_inband_t inband_output,
+       mach_msg_type_number_t *inband_outputCnt,
        io_scalar_inband64_t scalar_output,
        mach_msg_type_number_t *scalar_outputCnt,
+       io_buf_ptr_t *var_output,
+       mach_msg_type_number_t *var_outputCnt
+)
+{
+    CHECK( IOUserClient, connection, client );
+
+    IOExternalMethodArguments args;
+    IOReturn ret;
+    IOMemoryDescriptor * inputMD  = 0;
+    OSObject *           structureVariableOutputData = 0;
+
+    bzero(&args.__reserved[0], sizeof(args.__reserved));
+    args.version = kIOExternalMethodArgumentsCurrentVersion;
+
+    args.selector = selector;
+
+    args.asyncWakePort               = MACH_PORT_NULL;
+    args.asyncReference              = 0;
+    args.asyncReferenceCount         = 0;
+    args.structureVariableOutputData = &structureVariableOutputData;
+
+    args.scalarInput = scalar_input;
+    args.scalarInputCount = scalar_inputCnt;
+    args.structureInput = inband_input;
+    args.structureInputSize = inband_inputCnt;
+
+    if (ool_input)
+       inputMD = IOMemoryDescriptor::withAddressRange(ool_input, ool_input_size, 
+                                                   kIODirectionOut, current_task());
+
+    args.structureInputDescriptor = inputMD;
+
+    args.scalarOutput = scalar_output;
+    args.scalarOutputCount = *scalar_outputCnt;
+    bzero(&scalar_output[0], *scalar_outputCnt * sizeof(scalar_output[0]));
+    args.structureOutput = inband_output;
+    args.structureOutputSize = *inband_outputCnt;
+    args.structureOutputDescriptor = NULL;
+    args.structureOutputDescriptorSize = 0;
+
+    IOStatisticsClientCall();
+    ret = client->externalMethod( selector, &args );
+
+    *scalar_outputCnt = args.scalarOutputCount;
+    *inband_outputCnt = args.structureOutputSize;
+
+    if (var_outputCnt && var_output && (kIOReturnSuccess == ret))
+    {
+       OSSerialize * serialize;
+       OSData      * data;
+       vm_size_t     len;
+
+       if ((serialize = OSDynamicCast(OSSerialize, structureVariableOutputData)))
+       {
+           len = serialize->getLength();
+           *var_outputCnt = len;
+           ret = copyoutkdata(serialize->text(), len, var_output);
+       }
+       else if ((data = OSDynamicCast(OSData, structureVariableOutputData)))
+       {
+           len = data->getLength();
+           *var_outputCnt = len;
+           ret = copyoutkdata(data->getBytesNoCopy(), len, var_output);
+       }
+       else
+       {
+           ret = kIOReturnUnderrun;
+       }
+    }
+
+    if (inputMD)
+       inputMD->release();
+    if (structureVariableOutputData)
+       structureVariableOutputData->release();
+
+    return (ret);
+}
+
+/* Routine io_user_client_method */
+kern_return_t is_io_connect_method
+(
+       io_connect_t connection,
+       uint32_t selector,
+       io_scalar_inband64_t scalar_input,
+       mach_msg_type_number_t scalar_inputCnt,
+       io_struct_inband_t inband_input,
+       mach_msg_type_number_t inband_inputCnt,
+       mach_vm_address_t ool_input,
+       mach_vm_size_t ool_input_size,
        io_struct_inband_t inband_output,
        mach_msg_type_number_t *inband_outputCnt,
+       io_scalar_inband64_t scalar_output,
+       mach_msg_type_number_t *scalar_outputCnt,
        mach_vm_address_t ool_output,
-       mach_vm_size_t * ool_output_size
+       mach_vm_size_t *ool_output_size
 )
 {
     CHECK( IOUserClient, connection, client );
@@ -2713,9 +3662,10 @@ kern_return_t is_io_connect_method
 
     args.selector = selector;
 
-    args.asyncWakePort       = MACH_PORT_NULL;
-    args.asyncReference      = 0;
-    args.asyncReferenceCount = 0;
+    args.asyncWakePort               = MACH_PORT_NULL;
+    args.asyncReference              = 0;
+    args.asyncReferenceCount         = 0;
+    args.structureVariableOutputData = 0;
 
     args.scalarInput = scalar_input;
     args.scalarInputCount = scalar_inputCnt;
@@ -2730,18 +3680,20 @@ kern_return_t is_io_connect_method
 
     args.scalarOutput = scalar_output;
     args.scalarOutputCount = *scalar_outputCnt;
+    bzero(&scalar_output[0], *scalar_outputCnt * sizeof(scalar_output[0]));
     args.structureOutput = inband_output;
     args.structureOutputSize = *inband_outputCnt;
 
-    if (ool_output)
+    if (ool_output && ool_output_size)
     {
        outputMD = IOMemoryDescriptor::withAddressRange(ool_output, *ool_output_size, 
                                                    kIODirectionIn, current_task());
     }
 
     args.structureOutputDescriptor = outputMD;
-    args.structureOutputDescriptorSize = *ool_output_size;
+    args.structureOutputDescriptorSize = ool_output_size ? *ool_output_size : 0;
 
+    IOStatisticsClientCall();
     ret = client->externalMethod( selector, &args );
 
     *scalar_outputCnt = args.scalarOutputCount;
@@ -2770,10 +3722,10 @@ kern_return_t is_io_connect_async_method
        mach_msg_type_number_t inband_inputCnt,
        mach_vm_address_t ool_input,
        mach_vm_size_t ool_input_size,
-       io_scalar_inband64_t scalar_output,
-       mach_msg_type_number_t *scalar_outputCnt,
        io_struct_inband_t inband_output,
        mach_msg_type_number_t *inband_outputCnt,
+       io_scalar_inband64_t scalar_output,
+       mach_msg_type_number_t *scalar_outputCnt,
        mach_vm_address_t ool_output,
        mach_vm_size_t * ool_output_size
 )
@@ -2811,6 +3763,7 @@ kern_return_t is_io_connect_async_method
 
     args.scalarOutput = scalar_output;
     args.scalarOutputCount = *scalar_outputCnt;
+    bzero(&scalar_output[0], *scalar_outputCnt * sizeof(scalar_output[0]));
     args.structureOutput = inband_output;
     args.structureOutputSize = *inband_outputCnt;
 
@@ -2823,6 +3776,7 @@ kern_return_t is_io_connect_async_method
     args.structureOutputDescriptor = outputMD;
     args.structureOutputDescriptorSize = *ool_output_size;
 
+    IOStatisticsClientCall();
     ret = client->externalMethod( selector, &args );
 
     *inband_outputCnt = args.structureOutputSize;
@@ -2853,6 +3807,7 @@ kern_return_t is_io_connect_method_scalarI_scalarO(
     mach_msg_type_number_t struct_outputCnt = 0;
     mach_vm_size_t ool_output_size = 0;
 
+    bzero(&_output[0], sizeof(_output));
     for (i = 0; i < inputCount; i++)
        _input[i] = SCALAR64(input[i]);
        
@@ -2860,8 +3815,8 @@ kern_return_t is_io_connect_method_scalarI_scalarO(
                    _input, inputCount, 
                    NULL, 0,
                    0, 0,
-                   _output, outputCount,
                    NULL, &struct_outputCnt,
+                   _output, outputCount,
                    0, &ool_output_size);
 
     for (i = 0; i < *outputCount; i++)
@@ -2883,6 +3838,7 @@ kern_return_t shim_io_connect_method_scalarI_scalarO(
     IOReturn           err;
     err = kIOReturnBadArgument;
 
+    bzero(&_output[0], sizeof(_output));
     do {
 
        if( inputCount != method->count0)
@@ -2964,6 +3920,7 @@ kern_return_t is_io_async_method_scalarI_scalarO(
     io_scalar_inband64_t _output;
     io_async_ref64_t _reference;
 
+    bzero(&_output[0], sizeof(_output));
     for (i = 0; i < referenceCnt; i++)
        _reference[i] = REF64(reference[i]);
 
@@ -2979,8 +3936,8 @@ kern_return_t is_io_async_method_scalarI_scalarO(
                    _input, inputCount, 
                    NULL, 0,
                    0, 0,
-                   _output, outputCount,
                    NULL, &struct_outputCnt,
+                   _output, outputCount,
                    0, &ool_output_size);
 
     for (i = 0; i < *outputCount; i++)
@@ -3019,8 +3976,8 @@ kern_return_t is_io_async_method_scalarI_structureO(
                    _input, inputCount, 
                    NULL, 0,
                    0, 0,
-                   NULL, &scalar_outputCnt,
                    output, outputCount,
+                   NULL, &scalar_outputCnt,
                    0, &ool_output_size));
 }
 
@@ -3056,8 +4013,8 @@ kern_return_t is_io_async_method_scalarI_structureI(
                    _input, inputCount, 
                    inputStruct, inputStructCount,
                    0, 0,
-                   NULL, &scalar_outputCnt,
                    NULL, &inband_outputCnt,
+                   NULL, &scalar_outputCnt,
                    0, &ool_output_size));
 }
 
@@ -3087,8 +4044,8 @@ kern_return_t is_io_async_method_structureI_structureO(
                    NULL, 0, 
                    input, inputCount,
                    0, 0,
-                   NULL, &scalar_outputCnt,
                    output, outputCount,
+                   NULL, &scalar_outputCnt,
                    0, &ool_output_size));
 }
 
@@ -3110,6 +4067,7 @@ kern_return_t shim_io_async_method_scalarI_scalarO(
     IOReturn           err;
     io_async_ref_t     reference;
 
+    bzero(&_output[0], sizeof(_output));
     for (i = 0; i < asyncReferenceCount; i++)
        reference[i] = REF32(asyncReference[i]);
 
@@ -3207,8 +4165,8 @@ kern_return_t is_io_connect_method_scalarI_structureO(
                    _input, inputCount, 
                    NULL, 0,
                    0, 0,
-                   NULL, &scalar_outputCnt,
                    output, outputCount,
+                   NULL, &scalar_outputCnt,
                    0, &ool_output_size));
 }
 
@@ -3380,8 +4338,8 @@ kern_return_t is_io_connect_method_scalarI_structureI(
                    _input, inputCount, 
                    inputStruct, inputStructCount,
                    0, 0,
-                   NULL, &scalar_outputCnt,
                    NULL, &inband_outputCnt,
+                   NULL, &scalar_outputCnt,
                    0, &ool_output_size));
 }
 
@@ -3398,8 +4356,7 @@ kern_return_t shim_io_connect_method_scalarI_structureI(
 
     do
     {
-       if( (kIOUCVariableStructureSize != method->count0)
-               && (inputCount != method->count0))
+       if (inputCount != method->count0)
        {
            IOLog("%s: IOUserClient inputCount count mismatch\n", object->getName());
            continue;
@@ -3423,25 +4380,25 @@ kern_return_t shim_io_connect_method_scalarI_structureI(
            case 4:
                err = (object->*func)( ARG32(input[0]), ARG32(input[1]), (void *)  input[2],
                                        ARG32(input[3]),
-                                       inputStruct, (void *)inputStructCount );
+                                       inputStruct, (void *)(uintptr_t)inputStructCount );
                break;
            case 3:
                err = (object->*func)( ARG32(input[0]), ARG32(input[1]), ARG32(input[2]),
-                                       inputStruct, (void *)inputStructCount,
+                                       inputStruct, (void *)(uintptr_t)inputStructCount,
                                        0 );
                break;
            case 2:
                err = (object->*func)( ARG32(input[0]), ARG32(input[1]),
-                                       inputStruct, (void *)inputStructCount,
+                                       inputStruct, (void *)(uintptr_t)inputStructCount,
                                        0, 0 );
                break;
            case 1:
                err = (object->*func)( ARG32(input[0]),
-                                       inputStruct, (void *)inputStructCount,
+                                       inputStruct, (void *)(uintptr_t)inputStructCount,
                                        0, 0, 0 );
                break;
            case 0:
-               err = (object->*func)( inputStruct, (void *)inputStructCount,
+               err = (object->*func)( inputStruct, (void *)(uintptr_t)inputStructCount,
                                        0, 0, 0, 0 );
                break;
 
@@ -3475,8 +4432,7 @@ kern_return_t shim_io_async_method_scalarI_structureI(
 
     do
     {
-       if( (kIOUCVariableStructureSize != method->count0)
-               && (inputCount != method->count0))
+       if (inputCount != method->count0)
        {
            IOLog("%s: IOUserClient inputCount count mismatch\n", object->getName());
            continue;
@@ -3502,29 +4458,29 @@ kern_return_t shim_io_async_method_scalarI_structureI(
                 err = (object->*func)( reference,
                                         ARG32(input[0]), ARG32(input[1]), ARG32(input[2]),
                                         ARG32(input[3]),
-                                        inputStruct, (void *)inputStructCount );
+                                        inputStruct, (void *)(uintptr_t)inputStructCount );
                 break;
             case 3:
                 err = (object->*func)( reference,
                                         ARG32(input[0]), ARG32(input[1]), ARG32(input[2]),
-                                        inputStruct, (void *)inputStructCount,
+                                        inputStruct, (void *)(uintptr_t)inputStructCount,
                                         0 );
                 break;
             case 2:
                 err = (object->*func)( reference,
                                         ARG32(input[0]), ARG32(input[1]),
-                                        inputStruct, (void *)inputStructCount,
+                                        inputStruct, (void *)(uintptr_t)inputStructCount,
                                         0, 0 );
                 break;
             case 1:
                 err = (object->*func)( reference,
                                         ARG32(input[0]),
-                                        inputStruct, (void *)inputStructCount,
+                                        inputStruct, (void *)(uintptr_t)inputStructCount,
                                         0, 0, 0 );
                 break;
             case 0:
                 err = (object->*func)( reference,
-                                        inputStruct, (void *)inputStructCount,
+                                        inputStruct, (void *)(uintptr_t)inputStructCount,
                                         0, 0, 0, 0 );
                 break;
 
@@ -3553,8 +4509,8 @@ kern_return_t is_io_connect_method_structureI_structureO(
                    NULL, 0, 
                    input, inputCount,
                    0, 0,
-                   NULL, &scalar_outputCnt,
                    output, outputCount,
+                   NULL, &scalar_outputCnt,
                    0, &ool_output_size));
 }
 
@@ -3589,12 +4545,12 @@ kern_return_t shim_io_connect_method_structureI_structureO(
        if( method->count1) {
            if( method->count0) {
                err = (object->*func)( input, output,
-                                       (void *)inputCount, outputCount, 0, 0 );
+                                       (void *)(uintptr_t)inputCount, outputCount, 0, 0 );
            } else {
                err = (object->*func)( output, outputCount, 0, 0, 0, 0 );
            }
        } else {
-               err = (object->*func)( input, (void *)inputCount, 0, 0, 0, 0 );
+               err = (object->*func)( input, (void *)(uintptr_t)inputCount, 0, 0, 0, 0 );
        }
     }
     while( false);
@@ -3644,84 +4600,18 @@ kern_return_t shim_io_async_method_structureI_structureO(
             if( method->count0) {
                 err = (object->*func)( reference,
                                        input, output,
-                                        (void *)inputCount, outputCount, 0, 0 );
+                                        (void *)(uintptr_t)inputCount, outputCount, 0, 0 );
             } else {
                 err = (object->*func)( reference,
                                        output, outputCount, 0, 0, 0, 0 );
             }
         } else {
                 err = (object->*func)( reference,
-                                       input, (void *)inputCount, 0, 0, 0, 0 );
-        }
-    }
-    while( false);
-
-    return( err);
-}
-
-/* Routine io_make_matching */
-kern_return_t is_io_make_matching(
-       mach_port_t         master_port,
-       uint32_t            type,
-       uint32_t                options,
-        io_struct_inband_t     input,
-        mach_msg_type_number_t inputCount,
-       io_string_t     matching )
-{
-    OSSerialize *      s;
-    IOReturn           err = kIOReturnSuccess;
-    OSDictionary *     dict;
-
-    if( master_port != master_device_port)
-        return( kIOReturnNotPrivileged);
-
-    switch( type) {
-
-       case kIOServiceMatching:
-            dict = IOService::serviceMatching( gIOServiceKey );
-           break;
-
-       case kIOBSDNameMatching:
-           dict = IOBSDNameMatching( (const char *) input );
-           break;
-
-       case kIOOFPathMatching:
-           dict = IOOFPathMatching( (const char *) input,
-                                    matching, sizeof( io_string_t));
-           break;
-
-       default:
-           dict = 0;
-    }
-
-    if( !dict)
-       return( kIOReturnUnsupported);
-
-    do {
-        s = OSSerialize::withCapacity(4096);
-        if( !s) {
-            err = kIOReturnNoMemory;
-           continue;
-       }
-        s->clearText();
-        if( !dict->serialize( s )) {
-            err = kIOReturnUnsupported;
-           continue;
+                                       input, (void *)(uintptr_t)inputCount, 0, 0, 0, 0 );
         }
-
-        if( s->getLength() > sizeof( io_string_t)) {
-            err = kIOReturnNoMemory;
-           continue;
-        } else
-            strlcpy(matching, s->text(), sizeof(io_string_t));
     }
     while( false);
 
-    if( s)
-       s->release();
-    if( dict)
-       dict->release();
-
     return( err);
 }
 
@@ -3753,6 +4643,9 @@ kern_return_t is_io_catalog_send_data(
     if (inData) {
         vm_map_offset_t map_data;
 
+        if( inDataCount > sizeof(io_struct_inband_t) * 1024)
+            return( kIOReturnMessageTooLarge);
+
         kr = vm_map_copyout( kernel_map, &map_data, (vm_map_copy_t)inData);
                data = CAST_DOWN(vm_offset_t, map_data);
 
@@ -3762,7 +4655,7 @@ kern_return_t is_io_catalog_send_data(
         // must return success after vm_map_copyout() succeeds
 
         if( inDataCount ) {
-            obj = (OSObject *)OSUnserializeXML((const char *)data);
+            obj = (OSObject *)OSUnserializeXML((const char *)data, inDataCount);
             vm_deallocate( kernel_map, data, inDataCount );
             if( !obj) {
                 *result = kIOReturnNoMemory;
@@ -3772,6 +4665,23 @@ kern_return_t is_io_catalog_send_data(
     }
 
     switch ( flag ) {
+        case kIOCatalogResetDrivers:
+        case kIOCatalogResetDriversNoMatch: {
+                OSArray * array;
+
+                array = OSDynamicCast(OSArray, obj);
+                if (array) {
+                   if ( !gIOCatalogue->resetAndAddDrivers(array,
+                        flag == kIOCatalogResetDrivers) ) {
+
+                        kr = kIOReturnError;
+                    }
+                } else {
+                    kr = kIOReturnBadArgument;
+                }
+            }
+            break;
+
         case kIOCatalogAddDrivers: 
         case kIOCatalogAddDriversNoMatch: {
                 OSArray * array;
@@ -3827,6 +4737,7 @@ kern_return_t is_io_catalog_send_data(
 
         case kIOCatalogKextdActive:
 #if !NO_KEXTD
+            IOServiceTrace(IOSERVICE_KEXTD_ALIVE, 0, 0, 0, 0);
             OSKext::setKextdActive();
 
            /* Dump all nonloaded startup extensions; kextd will now send them
@@ -3844,6 +4755,7 @@ kern_return_t is_io_catalog_send_data(
                 if (!clearedBusy) {
                     IOService * serviceRoot = IOService::getServiceRoot();
                     if (serviceRoot) {
+                        IOServiceTrace(IOSERVICE_KEXTD_READY, 0, 0, 0, 0);
                         serviceRoot->adjustBusy(-1);
                         clearedBusy = true;
                     }
@@ -3881,6 +4793,7 @@ kern_return_t is_io_catalog_terminate(
         return( kr );
 
     switch ( flag ) {
+#if !defined(SECURE_KERNEL)
         case kIOCatalogServiceTerminate:
             OSIterator *       iter;
             IOService *                service;
@@ -3910,6 +4823,7 @@ kern_return_t is_io_catalog_terminate(
             kr = gIOCatalogue->terminateDriversForModule(name,
                                         flag == kIOCatalogModuleUnload);
             break;
+#endif
 
         default:
             kr = kIOReturnBadArgument;
@@ -3938,8 +4852,6 @@ kern_return_t is_io_catalog_get_data(
     if ( !s )
         return kIOReturnNoMemory;
 
-    s->clearText();
-
     kr = gIOCatalogue->serializeData(flag, s);
 
     if ( kr == kIOReturnSuccess ) {
@@ -4048,6 +4960,8 @@ kern_return_t iokit_user_client_trap(struct iokit_user_client_trap_args *args)
     return result;
 }
 
+} /* extern "C" */
+
 IOReturn IOUserClient::externalMethod( uint32_t selector, IOExternalMethodArguments * args,
                                        IOExternalMethodDispatch * dispatch, OSObject * target, void * reference )
 {
@@ -4107,16 +5021,13 @@ IOReturn IOUserClient::externalMethod( uint32_t selector, IOExternalMethodArgume
     if (args->asyncWakePort)
     {
        IOExternalAsyncMethod * method;
-
-       if( !(method = getAsyncTargetAndMethodForIndex(&object, selector)) )
+       object = 0;
+       if( !(method = getAsyncTargetAndMethodForIndex(&object, selector)) || !object )
            return (kIOReturnUnsupported);
 
     if (kIOUCForegroundOnly & method->flags)
     {
-        bool isBg;
-        kern_return_t kr = IOUCIsBackgroundTask(current_task(), &isBg);
-    
-        if ((KERN_SUCCESS == kr) && isBg)
+       if (task_is_gpu_denied(current_task()))
             return (kIOReturnNotPermitted);
     }
 
@@ -4159,16 +5070,13 @@ IOReturn IOUserClient::externalMethod( uint32_t selector, IOExternalMethodArgume
     else
     {
        IOExternalMethod *      method;
-
-       if( !(method = getTargetAndMethodForIndex(&object, selector)) )
+       object = 0;
+       if( !(method = getTargetAndMethodForIndex(&object, selector)) || !object )
            return (kIOReturnUnsupported);
 
     if (kIOUCForegroundOnly & method->flags)
     {
-        bool isBg;
-        kern_return_t kr = IOUCIsBackgroundTask(current_task(), &isBg);
-    
-        if ((KERN_SUCCESS == kr) && isBg)
+       if (task_is_gpu_denied(current_task()))
             return (kIOReturnNotPermitted);
     }
 
@@ -4211,8 +5119,6 @@ IOReturn IOUserClient::externalMethod( uint32_t selector, IOExternalMethodArgume
 }
 
 
-};     /* extern "C" */
-
 #if __LP64__
 OSMetaClassDefineReservedUnused(IOUserClient, 0);
 OSMetaClassDefineReservedUnused(IOUserClient, 1);