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//
// System.Security.AccessControl.DiscretionaryAcl implementation
//
// Authors:
// Dick Porter <dick@ximian.com>
// Atsushi Enomoto <atsushi@ximian.com>
// James Bellinger <jfb@zer7.com>
//
// Copyright (C) 2006-2007 Novell, Inc (http://www.novell.com)
// Copyright (C) 2012 James Bellinger
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Security.Principal;
namespace System.Security.AccessControl
{
public sealed class DiscretionaryAcl : CommonAcl
{
public DiscretionaryAcl (bool isContainer, bool isDS, int capacity)
: base (isContainer, isDS, capacity)
{
}
public DiscretionaryAcl (bool isContainer, bool isDS, RawAcl rawAcl)
: base (isContainer, isDS, rawAcl)
{
}
public DiscretionaryAcl (bool isContainer, bool isDS, byte revision, int capacity)
: base (isContainer, isDS, revision, capacity)
{
}
public void AddAccess (AccessControlType accessType,
SecurityIdentifier sid, int accessMask,
InheritanceFlags inheritanceFlags,
PropagationFlags propagationFlags)
{
AddAce (GetAceQualifier (accessType), sid, accessMask,
inheritanceFlags, propagationFlags, AuditFlags.None);
}
public void AddAccess (AccessControlType accessType,
SecurityIdentifier sid, int accessMask,
InheritanceFlags inheritanceFlags,
PropagationFlags propagationFlags,
ObjectAceFlags objectFlags,
Guid objectType,
Guid inheritedObjectType)
{
AddAce (GetAceQualifier (accessType), sid, accessMask,
inheritanceFlags, propagationFlags, AuditFlags.None,
objectFlags, objectType, inheritedObjectType);
}
public void AddAccess (AccessControlType accessType, SecurityIdentifier sid, ObjectAccessRule rule)
{
AddAccess (accessType, sid, rule.AccessMask, rule.InheritanceFlags, rule.PropagationFlags, rule.ObjectFlags, rule.ObjectType, rule.InheritedObjectType);
}
[MonoTODO]
public bool RemoveAccess (AccessControlType accessType,
SecurityIdentifier sid,
int accessMask,
InheritanceFlags inheritanceFlags,
PropagationFlags propagationFlags)
{
throw new NotImplementedException ();
}
[MonoTODO]
public bool RemoveAccess (AccessControlType accessType,
SecurityIdentifier sid,
int accessMask,
InheritanceFlags inheritanceFlags,
PropagationFlags propagationFlags,
ObjectAceFlags objectFlags,
Guid objectType,
Guid inheritedObjectType)
{
throw new NotImplementedException ();
}
public bool RemoveAccess (AccessControlType accessType, SecurityIdentifier sid, ObjectAccessRule rule)
{
return RemoveAccess (accessType, sid, rule.AccessMask, rule.InheritanceFlags, rule.PropagationFlags, rule.ObjectFlags, rule.ObjectType, rule.InheritedObjectType);
}
public void RemoveAccessSpecific (AccessControlType accessType,
SecurityIdentifier sid,
int accessMask,
InheritanceFlags inheritanceFlags,
PropagationFlags propagationFlags)
{
RemoveAceSpecific (GetAceQualifier (accessType), sid, accessMask,
inheritanceFlags, propagationFlags, AuditFlags.None);
}
public void RemoveAccessSpecific (AccessControlType accessType,
SecurityIdentifier sid,
int accessMask,
InheritanceFlags inheritanceFlags,
PropagationFlags propagationFlags,
ObjectAceFlags objectFlags,
Guid objectType,
Guid inheritedObjectType)
{
RemoveAceSpecific (GetAceQualifier (accessType), sid, accessMask,
inheritanceFlags, propagationFlags, AuditFlags.None,
objectFlags, objectType, inheritedObjectType);
}
public void RemoveAccessSpecific (AccessControlType accessType, SecurityIdentifier sid, ObjectAccessRule rule)
{
RemoveAccessSpecific (accessType, sid, rule.AccessMask, rule.InheritanceFlags, rule.PropagationFlags, rule.ObjectFlags, rule.ObjectType, rule.InheritedObjectType);
}
public void SetAccess (AccessControlType accessType,
SecurityIdentifier sid,
int accessMask,
InheritanceFlags inheritanceFlags,
PropagationFlags propagationFlags)
{
SetAce (GetAceQualifier (accessType), sid, accessMask,
inheritanceFlags, propagationFlags, AuditFlags.None);
}
public void SetAccess (AccessControlType accessType,
SecurityIdentifier sid,
int accessMask,
InheritanceFlags inheritanceFlags,
PropagationFlags propagationFlags,
ObjectAceFlags objectFlags,
Guid objectType,
Guid inheritedObjectType)
{
SetAce (GetAceQualifier (accessType), sid, accessMask,
inheritanceFlags, propagationFlags, AuditFlags.None,
objectFlags, objectType, inheritedObjectType);
}
public void SetAccess (AccessControlType accessType, SecurityIdentifier sid, ObjectAccessRule rule)
{
SetAccess (accessType, sid, rule.AccessMask, rule.InheritanceFlags, rule.PropagationFlags, rule.ObjectFlags, rule.ObjectType, rule.InheritedObjectType);
}
internal override void ApplyCanonicalSortToExplicitAces ()
{
int explicitCount = GetCanonicalExplicitAceCount ();
int explicitDenys = GetCanonicalExplicitDenyAceCount ();
ApplyCanonicalSortToExplicitAces (0, explicitDenys);
ApplyCanonicalSortToExplicitAces (explicitDenys, explicitCount - explicitDenys);
}
internal override int GetAceInsertPosition (AceQualifier aceQualifier)
{
// Canonical order for DACLs is explicit deny, explicit allow, inherited.
if (AceQualifier.AccessAllowed == aceQualifier)
return GetCanonicalExplicitDenyAceCount ();
else
return 0;
}
static AceQualifier GetAceQualifier (AccessControlType accessType)
{
if (AccessControlType.Allow == accessType)
return AceQualifier.AccessAllowed;
else if (AccessControlType.Deny == accessType)
return AceQualifier.AccessDenied;
else
throw new ArgumentOutOfRangeException ("accessType");
}
internal override bool IsAceMeaningless (GenericAce ace)
{
if (base.IsAceMeaningless (ace)) return true;
if (AuditFlags.None != ace.AuditFlags) return true;
QualifiedAce qace = ace as QualifiedAce;
if (null != qace) {
if (!(AceQualifier.AccessAllowed == qace.AceQualifier ||
AceQualifier.AccessDenied == qace.AceQualifier)) return true;
}
return false;
}
}
}
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