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//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//
/*============================================================
**
** Header: AssemblySpec.hpp
**
** Purpose: Implements classes used to bind to assemblies
**
**
**
===========================================================*/
#ifndef _ASSEMBLYSPEC_H
#define _ASSEMBLYSPEC_H
#include "hash.h"
#include "memorypool.h"
#ifdef FEATURE_FUSION
#include "fusionbind.h"
#endif
#include "assemblyspecbase.h"
#include "domainfile.h"
#include "genericstackprobe.h"
#include "holder.h"
class AppDomain;
class Assembly;
class DomainAssembly;
enum FileLoadLevel;
class AssemblySpec : public BaseAssemblySpec
{
private:
friend class AppDomain;
friend class AssemblyNameNative;
AppDomain *m_pAppDomain;
SBuffer m_HashForControl;
DWORD m_dwHashAlg;
DomainAssembly *m_pParentAssembly;
BOOL IsValidAssemblyName();
HRESULT InitializeSpecInternal(mdToken kAssemblyRefOrDef,
IMDInternalImport *pImport,
DomainAssembly *pStaticParent,
BOOL fIntrospectionOnly,
BOOL fAllowAllocation);
// InitializeSpecInternal should be used very carefully so it's made private.
// functions that take special care (and thus are allowed to use the function) are listed below
friend Assembly * Module::GetAssemblyIfLoaded(
mdAssemblyRef kAssemblyRef,
LPCSTR szWinRtNamespace,
LPCSTR szWinRtClassName,
IMDInternalImport * pMDImportOverride,
BOOL fDoNotUtilizeExtraChecks,
ICLRPrivBinder *pBindingContextForLoadedAssembly);
public:
#ifndef DACCESS_COMPILE
AssemblySpec() : m_pAppDomain(::GetAppDomain())
{
LIMITED_METHOD_CONTRACT;
m_pParentAssembly = NULL;
}
#endif //!DACCESS_COMPILE
AssemblySpec(AppDomain *pAppDomain) : m_pAppDomain(pAppDomain)
{
LIMITED_METHOD_CONTRACT
m_pParentAssembly = NULL;
}
#ifdef FEATURE_FUSION
virtual IAssembly* GetParentIAssembly();
virtual LPCVOID GetParentAssemblyPtr();
#endif
DomainAssembly* GetParentAssembly();
ICLRPrivBinder* GetBindingContextFromParentAssembly(AppDomain *pDomain);
bool HasParentAssembly()
{ WRAPPER_NO_CONTRACT; return GetParentAssembly() != NULL; }
void InitializeSpec(mdToken kAssemblyRefOrDef,
IMDInternalImport *pImport,
DomainAssembly *pStaticParent = NULL,
BOOL fIntrospectionOnly = FALSE)
{
CONTRACTL
{
INSTANCE_CHECK;
GC_TRIGGERS;
THROWS;
MODE_ANY;
}
CONTRACTL_END;
HRESULT hr=InitializeSpecInternal(kAssemblyRefOrDef, pImport,pStaticParent,fIntrospectionOnly,TRUE);
if(FAILED(hr))
EEFileLoadException::Throw(this,hr);
#ifndef FEATURE_CORECLR
CloneFields();
#endif
};
#ifdef FEATURE_FUSION
void InitializeSpec(IAssemblyName *pName,
DomainAssembly *pStaticParent = NULL,
BOOL fIntrospectionOnly = FALSE);
#endif // FEATURE_FUSION
void InitializeSpec(PEAssembly *pFile);
HRESULT InitializeSpec(StackingAllocator* alloc,
ASSEMBLYNAMEREF* pName,
BOOL fParse = TRUE,
BOOL fIntrospectionOnly = FALSE);
void AssemblyNameInit(ASSEMBLYNAMEREF* pName, PEImage* pImageInfo); //[in,out], [in]
#ifdef FEATURE_MIXEDMODE
void InitializeSpec(HINSTANCE hMod, BOOL fIntrospectionOnly = FALSE);
#endif // FEATURE_MIXEDMODE
void SetCodeBase(LPCWSTR szCodeBase)
{
WRAPPER_NO_CONTRACT;
BaseAssemblySpec::SetCodeBase(szCodeBase);
}
void SetCodeBase(StackingAllocator* alloc, STRINGREF *pCodeBase);
void SetParentAssembly(DomainAssembly *pAssembly)
{
CONTRACTL
{
INSTANCE_CHECK;
GC_NOTRIGGER;
NOTHROW;
MODE_ANY;
}
CONTRACTL_END;
m_pParentAssembly = pAssembly;
#ifdef FEATURE_FUSION
if (pAssembly)
{
#ifdef FEATURE_HOSTED_BINDER
_ASSERTE(GetHostBinder() == nullptr);
#endif // FEATURE_HOSTED_BINDER
m_fParentLoadContext=pAssembly->GetFile()->GetLoadContext();
}
else
m_fParentLoadContext = LOADCTX_TYPE_DEFAULT;
#endif
}
// Note that this method does not clone the fields!
void CopyFrom(AssemblySpec* pSource)
{
CONTRACTL
{
INSTANCE_CHECK;
THROWS;
MODE_ANY;
}
CONTRACTL_END;
BaseAssemblySpec::CopyFrom(pSource);
SetIntrospectionOnly(pSource->IsIntrospectionOnly());
SetParentAssembly(pSource->GetParentAssembly());
m_HashForControl = pSource->m_HashForControl;
m_dwHashAlg = pSource->m_dwHashAlg;
}
#ifndef FEATURE_FUSION
HRESULT CheckFriendAssemblyName();
#endif // FEATURE_FUSION
HRESULT EmitToken(IMetaDataAssemblyEmit *pEmit,
mdAssemblyRef *pToken,
BOOL fUsePublicKeyToken = TRUE,
BOOL fMustBeBindable = FALSE /*(used only by FusionBind's implementation)*/);
// Make sure this matches in the managed Assembly.DemandPermission()
enum FilePermFlag {
FILE_PATHDISCOVERY = 0x0,
FILE_READ = 0x1,
FILE_READANDPATHDISC = 0x2,
FILE_WEBPERM = 0x3
};
#ifdef FEATURE_FUSION
static void DemandFileIOPermission(LPCWSTR wszCodeBase,
BOOL fHavePath,
DWORD dwDemandFlag);
void DemandFileIOPermission(PEAssembly *pFile);
#endif
#ifndef FEATURE_FUSION
VOID Bind(
AppDomain* pAppDomain,
BOOL fThrowOnFileNotFound,
CoreBindResult* pBindResult,
BOOL fNgenExplicitBind = FALSE,
BOOL fExplicitBindToNativeImage = FALSE,
StackCrawlMark *pCallerStackMark = NULL );
#ifndef FEATURE_CORECLR
static VOID BindToSystem(BINDER_SPACE::Assembly** ppAssembly);
#endif
#endif
Assembly *LoadAssembly(FileLoadLevel targetLevel,
AssemblyLoadSecurity *pLoadSecurity = NULL,
BOOL fThrowOnFileNotFound = TRUE,
BOOL fRaisePrebindEvents = TRUE,
StackCrawlMark *pCallerStackMark = NULL);
DomainAssembly *LoadDomainAssembly(FileLoadLevel targetLevel,
AssemblyLoadSecurity *pLoadSecurity = NULL,
BOOL fThrowOnFileNotFound = TRUE,
BOOL fRaisePrebindEvents = TRUE,
StackCrawlMark *pCallerStackMark = NULL);
//****************************************************************************************
//
// Creates and loads an assembly based on the name and context.
static Assembly *LoadAssembly(LPCSTR pSimpleName,
AssemblyMetaDataInternal* pContext,
const BYTE * pbPublicKeyOrToken,
DWORD cbPublicKeyOrToken,
DWORD dwFlags);
#ifdef FEATURE_FUSION
//****************************************************************************************
//
HRESULT LoadAssembly(IApplicationContext *pFusionContext,
FusionSink *pSink,
IAssembly** ppIAssembly,
IHostAssembly** ppIHostAssembly,
IBindResult **ppNativeFusionAssembly,
BOOL fForIntrospectionOnly,
BOOL fSuppressSecurityChecks);
#endif
// Load an assembly based on an explicit path
static Assembly *LoadAssembly(LPCWSTR pFilePath);
#ifdef FEATURE_FUSION
BOOL FindAssemblyFile(AppDomain *pAppDomain, BOOL fThrowOnFileNotFound,
IAssembly** ppIAssembly, IHostAssembly **ppIHostAssembly, IBindResult** pNativeFusionAssembly,
IFusionBindLog **ppFusionLog, HRESULT *pHRBindResult, StackCrawlMark *pCallerStackMark = NULL,
AssemblyLoadSecurity *pLoadSecurity = NULL);
#endif // FEATURE_FUSION
private:
void MatchRetargetedPublicKeys(Assembly *pAssembly);
public:
void MatchPublicKeys(Assembly *pAssembly);
PEAssembly *ResolveAssemblyFile(AppDomain *pAppDomain, BOOL fPreBind);
AppDomain *GetAppDomain()
{
LIMITED_METHOD_CONTRACT;
return m_pAppDomain;
}
HRESULT SetHashForControl(PBYTE pHashForControl, DWORD dwHashForControl, DWORD dwHashAlg)
{
CONTRACTL
{
THROWS;
GC_NOTRIGGER;
PRECONDITION(CheckPointer(pHashForControl));
}
CONTRACTL_END;
m_HashForControl.Set(pHashForControl, dwHashForControl);
m_dwHashAlg=dwHashAlg;
return S_OK;
}
void ParseEncodedName();
void SetWindowsRuntimeType(LPCUTF8 szNamespace, LPCUTF8 szClassName);
void SetWindowsRuntimeType(SString const & _ssTypeName);
inline HRESULT SetContentType(AssemblyContentType type)
{
LIMITED_METHOD_CONTRACT;
if (type == AssemblyContentType_Default)
{
m_dwFlags = (m_dwFlags & ~afContentType_Mask) | afContentType_Default;
return S_OK;
}
else if (type == AssemblyContentType_WindowsRuntime)
{
m_dwFlags = (m_dwFlags & ~afContentType_Mask) | afContentType_WindowsRuntime;
return S_OK;
}
else
{
_ASSERTE(!"Unexpected content type.");
return E_UNEXPECTED;
}
}
// Returns true if the object can be used to bind to the target assembly.
// One case in which this is not true is when the content type is WinRT
// but no type name has been set.
inline bool HasBindableIdentity() const
{
STATIC_CONTRACT_LIMITED_METHOD;
#ifdef FEATURE_COMINTEROP
return (HasUniqueIdentity() ||
(IsContentType_WindowsRuntime() && (GetWinRtTypeClassName() != NULL)));
#else
return TRUE;
#endif
}
inline BOOL CanUseWithBindingCache() const
{
STATIC_CONTRACT_LIMITED_METHOD;
#if defined(FEATURE_HOSTED_BINDER) && defined(FEATURE_APPX_BINDER)
return (GetHostBinder() == nullptr) && HasUniqueIdentity();
#else
return HasUniqueIdentity();
#endif
}
#ifdef FEATURE_HOSTED_BINDER
inline ICLRPrivBinder *GetHostBinder() const
{
LIMITED_METHOD_CONTRACT;
return m_pHostBinder;
}
inline void SetHostBinder(ICLRPrivBinder *pHostBinder)
{
LIMITED_METHOD_CONTRACT;
m_pHostBinder = pHostBinder;
}
#endif
};
#define INITIAL_ASM_SPEC_HASH_SIZE 7
class AssemblySpecHash
{
LoaderHeap *m_pHeap;
PtrHashMap m_map;
public:
#ifndef DACCESS_COMPILE
AssemblySpecHash(LoaderHeap *pHeap = NULL)
: m_pHeap(pHeap)
{
CONTRACTL
{
CONSTRUCTOR_CHECK;
THROWS;
GC_NOTRIGGER;
MODE_ANY;
}
CONTRACTL_END;
m_map.Init(INITIAL_ASM_SPEC_HASH_SIZE, CompareSpecs, FALSE, NULL);
}
~AssemblySpecHash();
#endif
#ifndef DACCESS_COMPILE
//
// Returns TRUE if the spec was already in the table
//
BOOL Store(AssemblySpec *pSpec, AssemblySpec **ppStoredSpec = NULL)
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
MODE_ANY;
INJECT_FAULT(COMPlusThrowOM());
}
CONTRACTL_END
DWORD key = pSpec->Hash();
AssemblySpec *entry = (AssemblySpec *) m_map.LookupValue(key, pSpec);
if (entry == (AssemblySpec*) INVALIDENTRY)
{
if (m_pHeap != NULL)
entry = new (m_pHeap->AllocMem(S_SIZE_T(sizeof(AssemblySpec)))) AssemblySpec;
else
entry = new AssemblySpec;
GCX_PREEMP();
entry->CopyFrom(pSpec);
entry->CloneFields(AssemblySpec::ALL_OWNED);
m_map.InsertValue(key, entry);
if (ppStoredSpec != NULL)
*ppStoredSpec = entry;
return FALSE;
}
else
{
if (ppStoredSpec != NULL)
*ppStoredSpec = entry;
return TRUE;
}
}
#endif // DACCESS_COMPILE
DWORD Hash(AssemblySpec *pSpec)
{
WRAPPER_NO_CONTRACT;
return pSpec->Hash();
}
static BOOL CompareSpecs(UPTR u1, UPTR u2);
};
class AssemblySpecBindingCache
{
friend class AssemblyBindingHolder;
struct AssemblyBinding
{
public:
~AssemblyBinding()
{
WRAPPER_NO_CONTRACT;
if (m_pFile != NULL)
m_pFile->Release();
if (m_exceptionType==EXTYPE_EE)
delete m_pException;
};
void OnAppDomainUnload()
{
LIMITED_METHOD_CONTRACT;
if (m_exceptionType == EXTYPE_EE)
{
m_exceptionType = EXTYPE_NONE;
delete m_pException;
m_pException = NULL;
}
};
inline DomainAssembly* GetAssembly(){ LIMITED_METHOD_CONTRACT; return m_pAssembly;};
inline void SetAssembly(DomainAssembly* pAssembly){ LIMITED_METHOD_CONTRACT; m_pAssembly=pAssembly;};
inline PEAssembly* GetFile(){ LIMITED_METHOD_CONTRACT; return m_pFile;};
inline BOOL IsError(){ LIMITED_METHOD_CONTRACT; return (m_exceptionType!=EXTYPE_NONE);};
// bound to the file, but failed later
inline BOOL IsPostBindError(){ LIMITED_METHOD_CONTRACT; return IsError() && GetFile()!=NULL;};
inline void ThrowIfError()
{
CONTRACTL
{
THROWS;
GC_TRIGGERS;
MODE_ANY;
}
CONTRACTL_END;
switch(m_exceptionType)
{
case EXTYPE_NONE: return;
case EXTYPE_HR: ThrowHR(m_hr);
case EXTYPE_EE: PAL_CPP_THROW(Exception *, m_pException->DomainBoundClone());
default: _ASSERTE(!"Unexpected exception type");
}
};
inline void Init(AssemblySpec* pSpec, PEAssembly* pFile, DomainAssembly* pAssembly, Exception* pEx, LoaderHeap *pHeap, AllocMemTracker *pamTracker)
{
CONTRACTL
{
THROWS;
WRAPPER(GC_TRIGGERS);
MODE_ANY;
}
CONTRACTL_END;
InitInternal(pSpec,pFile,pAssembly);
if (pHeap != NULL)
{
m_spec.CloneFieldsToLoaderHeap(AssemblySpec::ALL_OWNED,pHeap, pamTracker);
}
else
{
m_spec.CloneFields(m_spec.ALL_OWNED);
}
InitException(pEx);
}
inline HRESULT GetHR()
{
LIMITED_METHOD_CONTRACT;
switch(m_exceptionType)
{
case EXTYPE_NONE: return S_OK;
case EXTYPE_HR: return m_hr;
case EXTYPE_EE: return m_pException->GetHR();
default: _ASSERTE(!"Unexpected exception type");
}
return E_UNEXPECTED;
};
inline void InitException(Exception* pEx)
{
CONTRACTL
{
THROWS;
WRAPPER(GC_TRIGGERS);
MODE_ANY;
}
CONTRACTL_END;
_ASSERTE(m_exceptionType==EXTYPE_NONE);
if (pEx==NULL)
return;
_ASSERTE(!pEx->IsTransient());
EX_TRY
{
m_pException = pEx->DomainBoundClone();
_ASSERTE(m_pException);
m_exceptionType=EXTYPE_EE;
}
EX_CATCH
{
InitException(pEx->GetHR());
}
EX_END_CATCH(RethrowTransientExceptions);
};
inline void InitException(HRESULT hr)
{
LIMITED_METHOD_CONTRACT;
_ASSERTE(m_exceptionType==EXTYPE_NONE);
if (FAILED(hr))
{
m_exceptionType=EXTYPE_HR;
m_hr=hr;
}
};
protected:
inline void InitInternal(AssemblySpec* pSpec, PEAssembly* pFile, DomainAssembly* pAssembly )
{
WRAPPER_NO_CONTRACT;
m_spec.CopyFrom(pSpec);
m_pFile = pFile;
if (m_pFile)
m_pFile->AddRef();
m_pAssembly = pAssembly;
m_exceptionType=EXTYPE_NONE;
}
AssemblySpec m_spec;
PEAssembly *m_pFile;
DomainAssembly *m_pAssembly;
enum{
EXTYPE_NONE = 0x00000000,
EXTYPE_HR = 0x00000001,
EXTYPE_EE = 0x00000002,
};
INT m_exceptionType;
union
{
HRESULT m_hr;
Exception* m_pException;
};
};
PtrHashMap m_map;
LoaderHeap *m_pHeap;
#if defined(FEATURE_CORECLR)
AssemblySpecBindingCache::AssemblyBinding* GetAssemblyBindingEntryForAssemblySpec(AssemblySpec* pSpec, BOOL fThrow);
#endif // defined(FEATURE_CORECLR)
public:
AssemblySpecBindingCache() DAC_EMPTY();
~AssemblySpecBindingCache() DAC_EMPTY();
void Init(CrstBase *pCrst, LoaderHeap *pHeap = NULL);
void Clear();
void OnAppDomainUnload();
BOOL Contains(AssemblySpec *pSpec);
DomainAssembly *LookupAssembly(AssemblySpec *pSpec, BOOL fThrow=TRUE);
PEAssembly *LookupFile(AssemblySpec *pSpec, BOOL fThrow = TRUE);
BOOL StoreAssembly(AssemblySpec *pSpec, DomainAssembly *pAssembly);
BOOL StoreFile(AssemblySpec *pSpec, PEAssembly *pFile);
BOOL StoreException(AssemblySpec *pSpec, Exception* pEx);
DWORD Hash(AssemblySpec *pSpec)
{
WRAPPER_NO_CONTRACT;
return pSpec->Hash();
}
static BOOL CompareSpecs(UPTR u1, UPTR u2);
};
#define INITIAL_DOMAIN_ASSEMBLY_CACHE_SIZE 17
class DomainAssemblyCache
{
struct AssemblyEntry {
AssemblySpec spec;
LPVOID pData[2]; // Can be an Assembly, PEAssembly, or an Unmanaged DLL
DWORD Hash()
{
WRAPPER_NO_CONTRACT;
return spec.Hash();
}
};
PtrHashMap m_Table;
AppDomain* m_pDomain;
public:
static BOOL CompareBindingSpec(UPTR spec1, UPTR spec2);
void InitializeTable(AppDomain* pDomain, CrstBase *pCrst)
{
WRAPPER_NO_CONTRACT;
_ASSERTE(pDomain);
m_pDomain = pDomain;
LockOwner lock = {pCrst, IsOwnerOfCrst};
m_Table.Init(INITIAL_DOMAIN_ASSEMBLY_CACHE_SIZE, &CompareBindingSpec, true, &lock);
}
AssemblyEntry* LookupEntry(AssemblySpec* pSpec);
LPVOID LookupEntry(AssemblySpec* pSpec, UINT index)
{
WRAPPER_NO_CONTRACT;
_ASSERTE(index < 2);
AssemblyEntry* ptr = LookupEntry(pSpec);
if(ptr == NULL)
return NULL;
else
return ptr->pData[index];
}
VOID InsertEntry(AssemblySpec* pSpec, LPVOID pData1, LPVOID pData2 = NULL);
private:
};
#endif
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