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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.
//
//
//
#ifndef __security_h__
#define __security_h__
#include "securitypolicy.h"
#include "securityattributes.h"
#include "securitydeclarativecache.h"
#include "securitydeclarative.h"
#include "securityimperative.h"
#include "securitytransparentassembly.h"
#ifdef FEATURE_APTCA
#include "aptca.h"
#endif
class IAssemblySecurityDescriptor;
class IApplicationSecurityDescriptor;
class IPEFileSecurityDescriptor;
enum SecurityStackWalkType
{
SSWT_DECLARATIVE_DEMAND = 1,
SSWT_IMPERATIVE_DEMAND = 2,
SSWT_DEMAND_FROM_NATIVE = 3,
SSWT_IMPERATIVE_ASSERT = 4,
SSWT_DENY_OR_PERMITONLY = 5,
SSWT_LATEBOUND_LINKDEMAND = 6,
SSWT_COUNT_OVERRIDES = 7,
SSWT_GET_ZONE_AND_URL = 8,
};
// AssemblyLoadSecurity is used to describe to the loader security information to apply to an assembly at
// load time. This includes information such as the assembly's evidence, as well as if we should resolve
// policy on the assembly or push a grant set to its security descriptor.
struct AssemblyLoadSecurity
{
OBJECTREF *m_pEvidence;
OBJECTREF *m_pAdditionalEvidence;
OBJECTREF *m_pGrantSet;
OBJECTREF *m_pRefusedSet;
DWORD m_dwSpecialFlags;
bool m_fCheckLoadFromRemoteSource;
bool m_fSuppressSecurityChecks;
bool m_fPropagatingAnonymouslyHostedDynamicMethodGrant;
inline AssemblyLoadSecurity();
// Should the assembly have policy resolved on it, or should it use a pre-determined grant set
inline bool ShouldResolvePolicy();
};
// Ultimately this will become the only interface through
// which the VM will access security code.
namespace Security
{
// ----------------------------------------
// SecurityPolicy
// ----------------------------------------
// Init
inline void Start();
inline void Stop();
inline void SaveCache();
// Policy
#ifdef FEATURE_CAS_POLICY
inline bool IsProcessWideLegacyCasPolicyEnabled();
inline bool CanLoadFromRemoteSources();
#endif // FEATURE_CAS_POLICY
BOOL BypassSecurityChecksForProfiler(MethodDesc *pMD);
inline BOOL CanCallUnmanagedCode(Module *pModule);
inline BOOL CanAssert(Module *pModule);
inline DECLSPEC_NORETURN void ThrowSecurityException(__in_z const char *szDemandClass, DWORD dwFlags);
#ifndef DACCESS_COMPILE
inline BOOL CanTailCall(MethodDesc* pMD);
inline BOOL CanHaveRVA(Assembly * pAssembly);
inline BOOL CanAccessNonVerifiableExplicitField(MethodDesc* pMD);
inline BOOL CanSkipVerification(MethodDesc * pMethod);
#endif
inline BOOL CanSkipVerification(DomainAssembly * pAssembly);
inline CorInfoCanSkipVerificationResult JITCanSkipVerification(DomainAssembly * pAssembly);
inline CorInfoCanSkipVerificationResult JITCanSkipVerification(MethodDesc * pMD);
// ----------------------------------------
// SecurityAttributes
// ----------------------------------------
inline OBJECTREF CreatePermissionSet(BOOL fTrusted);
inline void CopyByteArrayToEncoding(IN U1ARRAYREF* pArray, OUT PBYTE* pbData, OUT DWORD* cbData);
inline void CopyEncodingToByteArray(IN PBYTE pbData, IN DWORD cbData, IN OBJECTREF* pArray);
// ----------------------------------------
// SecurityDeclarative
// ----------------------------------------
inline HRESULT GetDeclarationFlags(IMDInternalImport *pInternalImport, mdToken token, DWORD* pdwFlags, DWORD* pdwNullFlags, BOOL* fHasSuppressUnmanagedCodeAccessAttr = NULL);
inline void RetrieveLinktimeDemands(MethodDesc* pMD, OBJECTREF* pClassCas, OBJECTREF* pClassNonCas, OBJECTREF* pMethodCas, OBJECTREF* pMethodNonCas);
inline void CheckLinkDemandAgainstAppDomain(MethodDesc *pMD) ;
inline LinktimeCheckReason GetLinktimeCheckReason(MethodDesc *pMD,
OBJECTREF *pClassCasDemands,
OBJECTREF *pClassNonCasDemands,
OBJECTREF *pMethodCasDemands,
OBJECTREF *pMethodNonCasDemands);
inline void LinktimeCheckMethod(Assembly *pCaller, MethodDesc *pCallee);
inline void ClassInheritanceCheck(MethodTable *pClass, MethodTable *pParent);
inline void MethodInheritanceCheck(MethodDesc *pMethod, MethodDesc *pParent);
inline void GetPermissionInstance(OBJECTREF *perm, int index);
inline void DoDeclarativeActions(MethodDesc *pMD, DeclActionInfo *pActions, LPVOID pSecObj, MethodSecurityDescriptor *pMSD = NULL);
#ifndef DACCESS_COMPILE
inline void CheckNonCasDemand(OBJECTREF *prefDemand);
#endif // #ifndef DACCESS_COMPILE
inline BOOL MethodIsVisibleOutsideItsAssembly(MethodDesc * pMD);
inline BOOL MethodIsVisibleOutsideItsAssembly(DWORD dwMethodAttr, DWORD dwClassAttr, BOOL fIsGlobalClass);
inline void CheckBeforeAllocConsole(AppDomain* pDomain, Assembly* pAssembly);
// ----------------------------------------
// SecurityStackWalk
// ----------------------------------------
// other CAS Actions
inline void Demand(SecurityStackWalkType eType, OBJECTREF demand) ;
#ifdef FEATURE_CAS_POLICY
inline void DemandGrantSet(IAssemblySecurityDescriptor *psdAssembly);
#endif // FEATURE_CAS_POLICY
inline void DemandSet(SecurityStackWalkType eType, OBJECTREF demand) ;
inline void DemandSet(SecurityStackWalkType eType, PsetCacheEntry *pPCE, DWORD dwAction) ;
#ifdef FEATURE_CAS_POLICY
inline void ReflectionTargetDemand(DWORD dwPermission, IAssemblySecurityDescriptor *psdTarget);
inline void ReflectionTargetDemand(DWORD dwPermission,
IAssemblySecurityDescriptor *psdTarget,
DynamicResolver * pAccessContext);
#endif // FEATURE_CAS_POLICY
inline void SpecialDemand(SecurityStackWalkType eType, DWORD whatPermission) ;
inline void InheritanceLinkDemandCheck(Assembly *pTargetAssembly, MethodDesc * pMDLinkDemand);
inline void FullTrustInheritanceDemand(Assembly *pTargetAssembly);
inline void FullTrustLinkDemand(Assembly *pTargetAssembly);
// Compressed Stack
#ifdef FEATURE_COMPRESSEDSTACK
inline COMPRESSEDSTACKREF GetCSFromContextTransitionFrame(Frame *pFrame) ;
inline BOOL IsContextTransitionFrameWithCS(Frame *pFrame);
#endif // #ifdef FEATURE_COMPRESSEDSTACK
// Misc - todo: put these in better categories
inline BOOL AllDomainsOnStackFullyTrusted();
IApplicationSecurityDescriptor* CreateApplicationSecurityDescriptor(AppDomain * pDomain);
IAssemblySecurityDescriptor* CreateAssemblySecurityDescriptor(AppDomain *pDomain, DomainAssembly *pAssembly, LoaderAllocator *pLoaderAllocator);
ISharedSecurityDescriptor* CreateSharedSecurityDescriptor(Assembly* pAssembly);
#ifndef FEATURE_CORECLR
IPEFileSecurityDescriptor* CreatePEFileSecurityDescriptor(AppDomain* pDomain, PEFile *pPEFile);
#endif
inline void SetDefaultAppDomainProperty(IApplicationSecurityDescriptor* pASD);
inline void SetDefaultAppDomainEvidenceProperty(IApplicationSecurityDescriptor* pASD);
// Checks for one of the special domain wide flags
// such as if we are currently in a "fully trusted" environment
// or if unmanaged code access is allowed at this time
// Note: This is an inline method instead of a virtual method on IApplicationSecurityDescriptor
// for stackwalk perf.
inline BOOL CheckDomainWideSpecialFlag(IApplicationSecurityDescriptor *pASD, DWORD flags);
inline BOOL IsResolved(Assembly *pAssembly);
FORCEINLINE VOID IncrementSecurityPerfCounter() ;
inline BOOL IsSpecialRunFrame(MethodDesc *pMeth) ;
inline BOOL SkipAndFindFunctionInfo(INT32 i, MethodDesc** ppMD, OBJECTREF** ppOR, AppDomain **ppAppDomain = NULL);
inline BOOL SkipAndFindFunctionInfo(StackCrawlMark* pSCM, MethodDesc** ppMD, OBJECTREF** ppOR, AppDomain **ppAppDomain = NULL);
// Transparency checks
inline BOOL IsMethodTransparent(MethodDesc * pMD);
inline BOOL IsMethodCritical(MethodDesc * pMD);
inline BOOL IsMethodSafeCritical(MethodDesc * pMD);
inline BOOL IsTypeCritical(MethodTable *pMT);
inline BOOL IsTypeSafeCritical(MethodTable *pMT);
inline BOOL IsTypeTransparent(MethodTable * pMT);
inline BOOL IsTypeAllTransparent(MethodTable * pMT);
inline BOOL IsFieldTransparent(FieldDesc * pFD);
inline BOOL IsFieldCritical(FieldDesc * pFD);
inline BOOL IsFieldSafeCritical(FieldDesc * pFD);
inline BOOL IsTokenTransparent(Module* pModule, mdToken token);
inline void DoSecurityClassAccessChecks(MethodDesc *pCallerMD,
const TypeHandle &calleeTH,
CorInfoSecurityRuntimeChecks check);
inline CorInfoIsAccessAllowedResult RequiresTransparentAssemblyChecks(MethodDesc* pCaller,
MethodDesc* pCallee,
SecurityTransparencyError *pError);
inline VOID EnforceTransparentAssemblyChecks(MethodDesc* pCallee, MethodDesc* pCaller);
inline VOID EnforceTransparentDelegateChecks(MethodTable* pDelegateMT, MethodDesc* pCaller);
inline VOID PerformTransparencyChecksForLoadByteArray(MethodDesc* pCallersMD, IAssemblySecurityDescriptor* pLoadedSecDesc);
inline bool TypeRequiresTransparencyCheck(TypeHandle type, bool checkForLinkDemands = false);
inline BOOL CheckCriticalAccess(AccessCheckContext* pContext,
MethodDesc* pOptionalTargetMethod = NULL,
FieldDesc* pOptionalTargetField = NULL,
MethodTable * pOptionalTargetType = NULL);
// declarative security
inline HRESULT GetDeclaredPermissions(IN IMDInternalImport *pInternalImport, IN mdToken token, IN CorDeclSecurity action, OUT OBJECTREF *pDeclaredPermissions, OUT PsetCacheEntry **pPSCacheEntry = NULL) ;
// security enforcement
inline BOOL ContainsBuiltinCASPermsOnly(CORSEC_ATTRSET* pAttrSet);
#ifdef FEATURE_APTCA
inline BOOL IsUntrustedCallerCheckNeeded(MethodDesc *pCalleeMD, Assembly *pCallerAssem = NULL) ;
inline void DoUntrustedCallerChecks(Assembly *pCaller, MethodDesc *pCalee, BOOL fFullStackWalk) ;
inline bool NativeImageHasValidAptcaDependencies(PEImage *pNativeImage, DomainAssembly *pDomainAssembly);
inline SString GetAptcaKillBitAccessExceptionContext(Assembly *pTargetAssembly);
inline SString GetConditionalAptcaAccessExceptionContext(Assembly *pTargetAssembly);
#endif // FEATURE_APTCA
#ifdef FEATURE_CORECLR
inline BOOL IsMicrosoftPlatform(IAssemblySecurityDescriptor *pSecDesc);
#endif // FEATURE_CORECLR
inline bool SecurityCalloutQuickCheck(MethodDesc *pCallerMD);
inline bool CanShareAssembly(DomainAssembly *pAssembly);
};
class ISecurityDescriptor
{
public:
#ifndef FEATURE_PAL
VPTR_BASE_VTABLE_CLASS(ISecurityDescriptor)
#endif
virtual ~ISecurityDescriptor() { LIMITED_METHOD_CONTRACT; }
virtual BOOL IsFullyTrusted() = 0;
virtual BOOL CanCallUnmanagedCode() const = 0;
#ifndef DACCESS_COMPILE
virtual DWORD GetSpecialFlags() const = 0;
virtual AppDomain* GetDomain() const = 0;
virtual void Resolve() = 0;
virtual BOOL IsResolved() const = 0;
#ifdef FEATURE_CAS_POLICY
virtual OBJECTREF GetEvidence() = 0;
virtual BOOL IsEvidenceComputed() const = 0;
virtual void SetEvidence(OBJECTREF evidence) = 0;
#endif // FEATURE_CAS_POLICY
virtual OBJECTREF GetGrantedPermissionSet(OBJECTREF* RefusedPermissions = NULL) = 0;
#endif // !DACCESS_COMPILE
};
class IApplicationSecurityDescriptor : public ISecurityDescriptor
{
public:
#ifndef FEATURE_PAL
VPTR_ABSTRACT_VTABLE_CLASS(IApplicationSecurityDescriptor, ISecurityDescriptor)
#endif
#ifndef DACCESS_COMPILE
public:
virtual BOOL IsHomogeneous() const = 0;
virtual void SetHomogeneousFlag(BOOL fRuntimeSuppliedHomogenousGrantSet) = 0;
virtual BOOL ContainsAnyRefusedPermissions() = 0;
virtual BOOL IsDefaultAppDomain() const = 0;
virtual BOOL IsDefaultAppDomainEvidence() = 0;
virtual BOOL DomainMayContainPartialTrustCode() = 0;
virtual BOOL CallHostSecurityManager() = 0;
virtual void SetHostSecurityManagerFlags(DWORD dwFlags) = 0;
virtual void SetPolicyLevelFlag() = 0;
virtual void FinishInitialization() = 0;
virtual BOOL IsInitializationInProgress() = 0;
// Determine the security state that an AppDomain will arrive in if nothing changes during domain
// initialization. (ie, get the input security state of the domain)
virtual void PreResolve(BOOL *pfIsFullyTrusted, BOOL *pfIsHomogeneous) = 0;
// Gets special domain wide flags that specify things
// such as whether we are currently in a "fully trusted" environment
// or if unmanaged code access is allowed at this time
virtual DWORD GetDomainWideSpecialFlag() const = 0;
#ifdef FEATURE_CAS_POLICY
virtual void SetLegacyCasPolicyEnabled() = 0;
virtual BOOL IsLegacyCasPolicyEnabled() = 0;
virtual BOOL AllowsLoadsFromRemoteSources() = 0;
#endif // FEATURE_CAS_POLICY
#ifdef FEATURE_APTCA
virtual ConditionalAptcaCache *GetConditionalAptcaCache() = 0;
virtual void SetCanonicalConditionalAptcaList(LPCWSTR wszCanonicalConditionalAptcaList) = 0;
#endif // FEATURE_APTCA
#endif // !DACCESS_COMPILE
};
class IAssemblySecurityDescriptor : public ISecurityDescriptor
{
public:
#ifndef FEATURE_PAL
VPTR_ABSTRACT_VTABLE_CLASS(IAssemblySecurityDescriptor, ISecurityDescriptor)
#endif
#ifndef DACCESS_COMPILE
virtual SharedSecurityDescriptor *GetSharedSecDesc() = 0;
virtual BOOL CanAssert() = 0;
virtual BOOL HasUnrestrictedUIPermission() = 0;
virtual BOOL IsAllCritical() = 0;
virtual BOOL IsAllSafeCritical() = 0;
virtual BOOL IsAllPublicAreaSafeCritical() = 0;
virtual BOOL IsAllTransparent() = 0;
virtual BOOL IsSystem() = 0;
virtual BOOL AllowSkipVerificationInFullTrust() = 0;
virtual void ResolvePolicy(ISharedSecurityDescriptor *pSharedDesc, BOOL fShouldSkipPolicyResolution) = 0;
#ifdef FEATURE_CAS_POLICY
virtual HRESULT LoadSignature( COR_TRUST **ppSignature = NULL) = 0;
virtual void SetRequestedPermissionSet(OBJECTREF RequiredPermissionSet, OBJECTREF OptionalPermissionSet, OBJECTREF DeniedPermissionSet) = 0;
virtual void SetAdditionalEvidence(OBJECTREF evidence) = 0;
virtual BOOL HasAdditionalEvidence() = 0;
virtual OBJECTREF GetAdditionalEvidence() = 0;
virtual void SetEvidenceFromPEFile(IPEFileSecurityDescriptor *pPEFileSecDesc) = 0;
#endif // FEATURE_CAS_POLICY
virtual void PropagatePermissionSet(OBJECTREF GrantedPermissionSet, OBJECTREF DeniedPermissionSet, DWORD dwSpecialFlags) = 0;
#ifndef FEATURE_CORECLR
virtual BOOL AllowApplicationSpecifiedAppDomainManager() = 0;
#endif
// Check to make sure that security will allow this assembly to load. Throw an exception if the
// assembly should be forbidden from loading for security related purposes
virtual void CheckAllowAssemblyLoad() = 0;
#endif // #ifndef DACCESS_COMPILE
};
class ISharedSecurityDescriptor
{
public:
virtual void Resolve(IAssemblySecurityDescriptor *pSecDesc = NULL) = 0;
virtual BOOL IsResolved() const = 0;
virtual BOOL IsSystem() = 0;
virtual Assembly* GetAssembly() = 0;
};
#ifndef FEATURE_CORECLR
class IPEFileSecurityDescriptor : public ISecurityDescriptor
{
public:
virtual BOOL AllowBindingRedirects() = 0;
};
#endif
#include "security.inl"
#include "securitydeclarative.inl"
#include "securityattributes.inl"
#endif
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