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Added AccessControlHelper.GetAces to enumerate aces on an acl. Added 'this' qualifier to turn methods into extension methods in AccessControlHelper.

pull/60/head
David Hall 2019-04-08 11:39:23 -06:00
parent a1837a70f5
commit 7bdc81796e
1 changed files with 9 additions and 8 deletions
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17
Security/AccessControl/AccCtrlHelper.cs
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@ -57,23 +57,24 @@ namespace Vanara.Security.AccessControl
/// <summary>Helper methods for working with Access Control structures.</summary>
public static class AccessControlHelper
{
public static ACCESS_ALLOWED_ACE GetAce(PACL pAcl, int aceIndex)
public static ACCESS_ALLOWED_ACE GetAce(this PACL pAcl, int aceIndex)
{
if (AdvApi32.GetAce(pAcl, aceIndex, out var acePtr))
return (ACCESS_ALLOWED_ACE)Marshal.PtrToStructure((IntPtr)acePtr, typeof(ACCESS_ALLOWED_ACE));
throw new System.ComponentModel.Win32Exception();
}
public static uint GetAceCount(PACL pAcl) => GetAclInfo(pAcl).AceCount;
public static ACL_SIZE_INFORMATION GetAclInfo(PACL pAcl)
public static IEnumerable<ACCESS_ALLOWED_ACE> GetAces(this PACL pAcl)
{
var si = new ACL_SIZE_INFORMATION();
if (!GetAclInformation(pAcl, ref si, (uint)Marshal.SizeOf(si), ACL_INFORMATION_CLASS.AclSizeInformation))
throw new System.ComponentModel.Win32Exception();
return si;
var cnt = GetAceCount(pAcl);
for (var i = 0; i < cnt; i++)
yield return GetAce(pAcl, i);
}
public static uint GetAceCount(this PACL pAcl) => GetAclInfo(pAcl).AceCount;
public static ACL_SIZE_INFORMATION GetAclInfo(PACL pAcl) => pAcl.GetAclInformation<ACL_SIZE_INFORMATION>();
public static uint GetAclSize(PACL pAcl) => GetAclInfo(pAcl).AclBytesInUse;
public static uint GetEffectiveRights(this PSID pSid, PSECURITY_DESCRIPTOR pSD)