+++ /dev/null
-#include <libkern/OSAtomic.h>
-#include <CoreFoundation/CoreFoundation.h>
-
-#include "CoreFoundationBasics.h"
-#include "Block.h"
-#include "TransformFactory.h"
-#include "Utilities.h"
-#include "syslog.h"
-#include "misc.h"
-
-using namespace std;
-
-
-const CFStringRef gInternalCFObjectName = CFSTR("SecTransform Internal Object");
-const CFStringRef gInternalProtectedCFObjectName = CFSTR("SecTransform Internal Object (protected)");
-
-struct RegisteredClassInfo
-{
- CFRuntimeClass mClass;
- CFTypeID mClassID;
- RegisteredClassInfo();
- void Register(CFStringRef name);
-
- static const RegisteredClassInfo *Find(CFStringRef name);
- static dispatch_queue_t readWriteLock;
- static dispatch_once_t initializationGuard;
- static CFMutableDictionaryRef registeredInfos;
-};
-
-dispatch_queue_t RegisteredClassInfo::readWriteLock;
-dispatch_once_t RegisteredClassInfo::initializationGuard;
-CFMutableDictionaryRef RegisteredClassInfo::registeredInfos;
-
-/*
- THE FOLLOWING FUNCTION REGISTERS YOUR CLASS. YOU MUST CALL YOUR CLASS INITIALIZER HERE!
-*/
-
-static CFErrorRef gNoMemory;
-
-CFErrorRef GetNoMemoryError()
-{
- return gNoMemory;
-}
-
-
-
-CFErrorRef GetNoMemoryErrorAndRetain()
-{
- return (CFErrorRef) CFRetain(gNoMemory);
-}
-
-
-
-static void CoreFoundationObjectRegister()
-{
- static dispatch_once_t gate = 0;
-
- dispatch_once(&gate,
- ^{
- // Init NoMemory here, so other places we can safely return it (otherwise we might
- // not have enough memory to allocate the CFError)
- gNoMemory = CreateGenericErrorRef(kCFErrorDomainPOSIX, ENOMEM, "Out of memory.");
-
- // only one registration for internal objects, cuts down on how many objects
- // we register in the CF type table
- CoreFoundationObject::RegisterObject(gInternalCFObjectName, false);
- CoreFoundationObject::RegisterObject(gInternalProtectedCFObjectName, true);
-
- // register any objects which may be exposed as API here
-
- // call for externalizable transforms.
- TransformFactory::Setup();
- });
-}
-
-
-
-RegisteredClassInfo::RegisteredClassInfo()
-{
- memset(&mClass, 0, sizeof(mClass));
- dispatch_once(&RegisteredClassInfo::initializationGuard, ^(void) {
- RegisteredClassInfo::readWriteLock = dispatch_queue_create("com.apple.security.transform.cfobject.RegisteredClassInfo", DISPATCH_QUEUE_CONCURRENT);
- RegisteredClassInfo::registeredInfos = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, NULL);
- });
-}
-
-
-
-CoreFoundationObject::CoreFoundationObject(CFStringRef name) : mHolder(NULL), mObjectType(name)
-{
-}
-
-
-
-CoreFoundationObject::~CoreFoundationObject()
-{
-}
-
-
-
-CFHashCode CoreFoundationObject::Hash()
-{
- // Valid for address equality only, overload for something else.
- return (CFHashCode)mHolder;
-}
-
-void CoreFoundationObject::Finalize()
-{
- delete this;
-}
-
-
-std::string CoreFoundationObject::FormattingDescription(CFDictionaryRef options)
-{
- return "CoreFoundationObject";
-}
-
-
-
-std::string CoreFoundationObject::DebugDescription()
-{
- return "CoreFoundationObject";
-}
-
-
-
-Boolean CoreFoundationObject::Equal(const CoreFoundationObject* obj)
-{
- return mHolder == obj->mHolder;
-}
-
-
-
-static void FinalizeStub(CFTypeRef typeRef)
-{
- CoreFoundationHolder::ObjectFromCFType(typeRef)->Finalize();
-}
-
-
-
-static Boolean IsEqualTo(CFTypeRef ref1, CFTypeRef ref2)
-{
- if (CFGetTypeID(ref1) != CFGetTypeID(ref2)) {
- // If ref2 isn't a CoreFoundatonHolder treating
- // it like one is likely to crash. (One could
- // argue that we should check to see if ref2
- // is *any* CoreFoundationHolder registered
- // type)
- return false;
- }
-
- CoreFoundationHolder* tr1 = (CoreFoundationHolder*) ref1;
- CoreFoundationHolder* tr2 = (CoreFoundationHolder*) ref2;
- return tr1->mObject->Equal(tr2->mObject);
-}
-
-
-
-static CFHashCode MakeHash(CFTypeRef typeRef)
-{
- CoreFoundationHolder* tr = (CoreFoundationHolder*) typeRef;
- return tr->mObject->Hash();
-}
-
-
-
-static CFStringRef MakeFormattingDescription(CFTypeRef typeRef, CFDictionaryRef formatOptions)
-{
- // get the string
- CoreFoundationHolder* tr = (CoreFoundationHolder*) typeRef;
- string desc = tr->mObject->FormattingDescription(formatOptions);
-
- if (desc.length() == 0)
- {
- return NULL;
- }
-
- // convert it to a CFString
- return CFStringCreateWithCString(NULL, desc.c_str(), kCFStringEncodingMacRoman);
-}
-
-
-static CFStringRef MakeDebugDescription(CFTypeRef typeRef)
-{
- // get the string
- CoreFoundationHolder* tr = (CoreFoundationHolder*) typeRef;
- string desc = tr->mObject->DebugDescription();
-
- if (desc.length() == 0)
- {
- return NULL;
- }
-
- // convert it to a CFString
- return CFStringCreateWithCString(NULL, desc.c_str(), kCFStringEncodingMacRoman);
-}
-
-
-
-
-void CoreFoundationObject::RegisterObject(CFStringRef name, bool protectDelete)
-{
- RegisteredClassInfo *classRecord = new RegisteredClassInfo;
-
- classRecord->mClass.version = 0;
- // XXX: this is kind of lame, "name" is almost always a CFSTR, so it would
- // be best to use the CFStringGetPtr result AND hold a reference to the
- // name string, but fall back to utf8... (note there is no unRegisterObject)
- char *utf8_name = utf8(name);
- classRecord->mClass.className = strdup(utf8_name);
- free(utf8_name);
- classRecord->mClass.init = NULL;
- classRecord->mClass.copy = NULL;
- classRecord->mClass.finalize = protectDelete ? NULL : FinalizeStub;
- classRecord->mClass.equal = IsEqualTo;
- classRecord->mClass.hash = MakeHash;
- classRecord->mClass.copyFormattingDesc = MakeFormattingDescription;
- classRecord->mClass.copyDebugDesc = MakeDebugDescription;
- classRecord->mClassID = _CFRuntimeRegisterClass((const CFRuntimeClass * const)&classRecord->mClass);
- classRecord->Register(name);
-}
-
-
-
-CFTypeID CoreFoundationObject::FindObjectType(CFStringRef name)
-{
- const RegisteredClassInfo *classInfo = RegisteredClassInfo::Find(name);
- if (classInfo) {
- return classInfo->mClassID;
- } else {
- return _kCFRuntimeNotATypeID;
- }
-}
-
-const RegisteredClassInfo *RegisteredClassInfo::Find(CFStringRef name)
-{
- __block const RegisteredClassInfo *ret = NULL;
- dispatch_sync(RegisteredClassInfo::readWriteLock, ^(void) {
- ret = (const RegisteredClassInfo *)CFDictionaryGetValue(RegisteredClassInfo::registeredInfos, name);
- });
-
- return ret;
-}
-
-void RegisteredClassInfo::Register(CFStringRef name)
-{
- dispatch_barrier_sync(RegisteredClassInfo::readWriteLock, ^(void) {
- CFDictionarySetValue(RegisteredClassInfo::registeredInfos, name, this);
- });
-}
-
-CFStringRef CoreFoundationObject::GetTypeAsCFString()
-{
- return mObjectType;
-}
-
-
-
-CoreFoundationHolder* CoreFoundationHolder::MakeHolder(CFStringRef name, CoreFoundationObject* object)
-{
- // setup the CoreFoundation registry, just in case we need it.
-
- CoreFoundationObjectRegister();
-
- CoreFoundationHolder* data = (CoreFoundationHolder*) _CFRuntimeCreateInstance(kCFAllocatorDefault,
- CoreFoundationObject::FindObjectType(name),
- sizeof(CoreFoundationHolder) - sizeof(CFRuntimeBase),
- NULL);
- data->mObject = object;
- object->SetHolder(data);
-
- return data;
-}
-
-
-
-CoreFoundationObject* CoreFoundationHolder::ObjectFromCFType(CFTypeRef type)
-{
- return ((CoreFoundationHolder*) type)->mObject;
-}
-
-
-
projects / apple / security.git / blobdiff