CSacl Class

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The latest version of this topic can be found at CSacl Class.

This class is a wrapper for a SACL (system access-control list) structure.

Important

This class and its members cannot be used in applications that execute in the Windows Runtime.

Syntax

class CSacl : public CAcl

Members

Public Constructors

Name Description
CSacl::CSacl The constructor.
CSacl::~CSacl The destructor.

Public Methods

Name Description
CSacl::AddAuditAce Adds an audit access-control entry (ACE) to the CSacl object.
CSacl::GetAceCount Returns the number of access-control entries (ACEs) in the CSacl object.
CSacl::RemoveAce Removes a specific ACE (access-control entry) from the CSacl object.
CSacl::RemoveAllAces Removes all of the ACEs contained in the CSacl object.

Public Operators

Name Description
CSacl::operator = Assignment operator.

Remarks

A SACL contains access-control entries (ACEs) that specify the types of access attempts that generate audit records in the security event log of a domain controller. Note that a SACL generates log entries only on the domain controller where the access attempt occurred, not on every domain controller that contains a replica of the object.

To set or retrieve the SACL in an object's security descriptor, the SE_SECURITY_NAME privilege must be enabled in the access token of the requesting thread. The administrators group has this privilege granted by default, and it can be granted to other users or groups. Having the privilege granted is not all that is required: before the operation defined by the privilege can be performed, the privilege must be enabled in the security access token in order to take effect. The model allows privileges to be enabled only for specific system operations, and then disabled when they are no longer needed. See AtlGetSacl and AtlSetSacl for examples of enabling SE_SECURITY_NAME.

Use the class methods provided to add, remove, create, and delete ACEs from the SACL object. See also AtlGetSacl and AtlSetSacl.

For an introduction to the access control model in Windows, see Access Control in the Windows SDK.

Inheritance Hierarchy

CAcl

CSacl

Requirements

Header: atlsecurity.h

CSacl::AddAuditAce

Adds an audit access-control entry (ACE) to the CSacl object.

bool AddAuditAce(
    const CSid& rSid,
    ACCESS_MASK AccessMask,
    bool bSuccess,
    bool bFailure,
    BYTE AceFlags = 0) throw(...);

bool AddAuditAce(
    const CSid& rSid,
    ACCESS_MASK AccessMask,
    bool bSuccess,
    bool bFailure,
    BYTE AceFlags,
    const GUID* pObjectType,
    const GUID* pInheritedObjectType) throw(...);

Parameters

rSid
The CSid object.

AccessMask
Specifies the mask of access rights to be audited for the specified CSid object.

bSuccess
Specifies whether allowed access attempts are to be audited. Set this flag to true to enable auditing; otherwise, set it to false.

bFailure
Specifies whether denied access attempts are to be audited. Set this flag to true to enable auditing; otherwise, set it to false.

AceFlags
A set of bit flags that control ACE inheritance.

pObjectType
The object type.

pInheritedObjectType
The inherited object type.

Return Value

Returns true if the ACE is added to the CSacl object, false on failure.

Remarks

A CSacl object contains access-control entries (ACEs) that specify the types of access attempts that generate audit records in the security event log. This method adds such an ACE to the CSacl object. The second form of AddAuditAce is only available on Windows 2000 and later.

See ACE_HEADER for a description of the various flags which can be set in the AceFlags parameter.

CSacl::CSacl

The constructor.

CSacl() throw();
CSacl(const ACL& rhs) throw(...);

Parameters

rhs
An existing ACL (access-control list) structure.

Remarks

The CSacl object can be optionally created using an existing ACL structure. Ensure that this parameter is a system access-control list (SACL) and not a discretionary access-control list (DACL). In debug builds, if a DACL is supplied an assertion will occur. In release builds any entries from a DACL are ignored.

CSacl::~CSacl

The destructor.

~CSacl() throw();

Remarks

The destructor frees any resources acquired by the object, including all access-control entries (ACEs).

CSacl::GetAceCount

Returns the number of access-control entries (ACEs) in the CSacl object.

UINT GetAceCount() const throw();

Return Value

Returns the number of ACEs contained in the CSacl object.

CSacl::operator =

Assignment operator.

CSacl& operator=(const ACL& rhs) throw(...);

Parameters

rhs
The ACL (access-control list) to assign to the existing object.

Return Value

Returns a reference to the updated CSacl object. Ensure that the ACL parameter is actually a system access-control list (SACL) and not a discretionary access-control list (DACL). In debug builds an assertion will occur, and in release builds the ACL parameter will be ignored.

CSacl::RemoveAce

Removes a specific ACE (access-control entry) from the CSacl object.

void RemoveAce(UINT nIndex) throw();

Parameters

nIndex
Index to the ACE entry to remove.

Remarks

This method is derived from CAtlArray::RemoveAt.

CSacl::RemoveAllAces

Removes all of the access-control entries (ACEs) contained in the CSacl object.

void RemoveAllAces() throw();

Remarks

Removes every ACE structure (if any) in the CSacl object.

See Also

CAcl Class
ACLs
ACEs
Class Overview
Security Global Functions