public static void GetObjectLookUpName(
IntPtr ptrSid,
out string Username,
out string Domain)
{
Username = string.Empty;
Domain = string.Empty;
try
{
int size = (int)SecurityDescriptorApi.GetLengthSid(ptrSid);
byte[] bSID = new byte[size];
Marshal.Copy(ptrSid, bSID, 0, size);
ApiLookupAccountSid(bSID, ref Username, ref Domain);
}
catch (Exception ex)
{
Logger.LogException("SecurityDescriptorWrapper.GetObjectLookUpName()", ex);
}
finally
{
//Freeying sid pointer
//if (ptrSid != IntPtr.Zero)
//SecurityDescriptorApi.FreeSid(ptrSid);
}
}
public static string GetObjectStringSid(IntPtr pByteSid)
{
string strSID = string.Empty;
try
{
IntPtr ptrSid = IntPtr.Zero;
int size = (int)SecurityDescriptorApi.GetLengthSid(pByteSid);
byte[] bSID = new byte[size];
Marshal.Copy(pByteSid, bSID, 0, size);
SecurityDescriptorApi.ConvertSidToStringSid(bSID, out ptrSid);
strSID = Marshal.PtrToStringAuto(ptrSid);
}
catch (Exception ex)
{
Logger.LogException("SecurityDescriptorWrapper.GetObjectStringSid()", ex);
}
return(strSID);
}
public static uint ApiSetSecurityDescriptorDacl(
object editedObjects,
object addedObjects,
object deletedObjects,
IntPtr pSecurityDesriptorIn,
out IntPtr pSecurityDescriptorOut)
{
uint errorReturn = 0;
Dictionary <string, object> editAces = editedObjects as Dictionary <string, object>;
Dictionary <string, object> newAces = addedObjects as Dictionary <string, object>;
Dictionary <string, object> deleteAces = deletedObjects as Dictionary <string, object>;
pSecurityDescriptorOut = IntPtr.Zero;
try
{
Logger.Log("SecurityDescriptorWrapper.ApiSetSecurityDescriptorDacl", Logger.SecurityDescriptorLogLevel);
IntPtr pNewSd; IntPtr pDaclOffset; IntPtr pNewDacl; IntPtr ptrSid;
bool lpbDaclPresent = false;
bool lpbDaclDefaulted = false;
SecurityDescriptorApi.LwACL acl = new SecurityDescriptorApi.LwACL();
pDaclOffset = Marshal.AllocHGlobal(Marshal.SizeOf(acl));
bool bRet = SecurityDescriptorApi.GetSecurityDescriptorDacl(pSecurityDesriptorIn, out lpbDaclPresent, out pDaclOffset, out lpbDaclDefaulted);
Logger.Log("SecurityDescriptorApi.ApiSetSecurityDescriptorDacl iRet value", Logger.SecurityDescriptorLogLevel);
if (pDaclOffset != IntPtr.Zero)
{
acl = (SecurityDescriptorApi.LwACL)Marshal.PtrToStructure(pDaclOffset, typeof(SecurityDescriptorApi.LwACL));
}
SecurityDescriptorApi.ACL_SIZE_INFORMATION AclSize = new SecurityDescriptorApi.ACL_SIZE_INFORMATION();
SecurityDescriptorApi.GetAclInformation(pDaclOffset, AclSize,
((uint)Marshal.SizeOf(typeof(SecurityDescriptorApi.ACL_SIZE_INFORMATION))),
SecurityDescriptorApi.ACL_INFORMATION_CLASS.AclSizeInformation);
SecurityDescriptorApi.SECURITY_DESCRIPTOR sSECURITY_DESCRIPTOR = new SecurityDescriptorApi.SECURITY_DESCRIPTOR();
sSECURITY_DESCRIPTOR = (SecurityDescriptorApi.SECURITY_DESCRIPTOR)Marshal.PtrToStructure(pSecurityDesriptorIn, typeof(SecurityDescriptorApi.SECURITY_DESCRIPTOR));
uint totalCount = (uint)(newAces.Count - deleteAces.Count);
int cbNewACL = (int)AclSize.AclBytesInUse + (int)((Marshal.SizeOf(typeof(SecurityDescriptorApi.ACCESS_ALLOWED_ACE)) - IntPtr.Size) * totalCount);
// Create new ACL
pNewDacl = Marshal.AllocHGlobal(cbNewACL);
bRet = SecurityDescriptorApi.InitializeAcl(pNewDacl, cbNewACL, acl.AclRevision);
Console.WriteLine(Marshal.GetLastWin32Error());
bRet = SecurityDescriptorApi.IsValidAcl(pNewDacl);
Console.WriteLine(Marshal.GetLastWin32Error());
SecurityDescriptorApi.ACL_REVISION_INFORMATION aclRevision = new SecurityDescriptorApi.ACL_REVISION_INFORMATION();
aclRevision.AclRevision = acl.AclRevision;
IntPtr pAclRevision = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(SecurityDescriptorApi.ACL_REVISION_INFORMATION)));
Marshal.StructureToPtr(aclRevision, pAclRevision, true);
bRet = SecurityDescriptorApi.SetAclInformation(
pNewDacl,
pAclRevision,
((uint)Marshal.SizeOf(typeof(SecurityDescriptorApi.ACL_REVISION_INFORMATION))),
SecurityDescriptorApi.ACL_INFORMATION_CLASS.AclRevisionInformation);
Console.WriteLine(Marshal.GetLastWin32Error());
//Delete/Editing the Ace entry from the ACl
for (int idx = 0; idx < AclSize.AceCount; idx++)
{
IntPtr pAce; ptrSid = IntPtr.Zero;
string sUsername, sDomain;
int err = SecurityDescriptorApi.GetAce(pDaclOffset, idx, out pAce);
SecurityDescriptorApi.ACCESS_ALLOWED_ACE ace = (SecurityDescriptorApi.ACCESS_ALLOWED_ACE)Marshal.PtrToStructure(pAce, typeof(SecurityDescriptorApi.ACCESS_ALLOWED_ACE));
IntPtr iter = (IntPtr)((int)pAce + (int)Marshal.OffsetOf(typeof(SecurityDescriptorApi.ACCESS_ALLOWED_ACE), "SidStart"));
int size = (int)SecurityDescriptorApi.GetLengthSid(iter);
byte[] bSID = new byte[size];
Marshal.Copy(iter, bSID, 0, size);
SecurityDescriptorApi.ConvertSidToStringSid(bSID, out ptrSid);
GetObjectLookUpName(iter, out sUsername, out sDomain);
if (deleteAces != null && deleteAces.Count != 0 && deleteAces.ContainsKey(sUsername))
{
continue;
}
if (editAces != null && editAces.Count != 0 && editAces.ContainsKey(sUsername))
{
List <LwAccessControlEntry> attributes = editAces[sUsername] as List <LwAccessControlEntry>;
if (attributes != null)
{
foreach (LwAccessControlEntry lwAce in attributes)
{
if ((int)ace.Header.AceType == lwAce.AceType)
{
SecurityDescriptorApi.ConvertStringSidToSid(lwAce.SID, out ptrSid);
bRet = SecurityDescriptorApi.AddAccessAllowedAceEx(
pNewDacl,
0,
Convert.ToByte(ace.Header.AceFlags),
Convert.ToInt32(lwAce.AccessMask),
ptrSid);
Console.WriteLine(Marshal.GetLastWin32Error());
Logger.Log("SecurityDescriptorWrapper.ApiSetSecurityDescriptorDacl() : SecurityDescriptorApi.AddAccessAllowedAceEx return code :" + Marshal.GetLastWin32Error());
}
}
}
}
else
{
Logger.Log("Adding new Ace from existing one: " + sUsername, Logger.SecurityDescriptorLogLevel);
bRet = SecurityDescriptorApi.AddAccessAllowedAceEx(
pNewDacl,
0,
ace.Header.AceFlags,
ace.Mask,
iter);
Console.WriteLine(Marshal.GetLastWin32Error());
}
SecurityDescriptorApi.FreeSid(ptrSid);
}
//Adding new Aces to the Security Descriptor
foreach (string key in newAces.Keys)
{
List <LwAccessControlEntry> attributes = newAces[key] as List <LwAccessControlEntry>;
foreach (LwAccessControlEntry lwAce in attributes)
{
SecurityDescriptorApi.ConvertStringSidToSid(lwAce.SID, out ptrSid);
bRet = SecurityDescriptorApi.AddAccessAllowedAceEx(
pNewDacl,
0,
Convert.ToByte(lwAce.AceFlags),
Convert.ToInt32(lwAce.AccessMask),
ptrSid);
Console.WriteLine(Marshal.GetLastWin32Error());
Logger.Log("Adding new Ace : " + lwAce.Username, Logger.SecurityDescriptorLogLevel);
Logger.Log("SecurityDescriptorWrapper.ApiSetSecurityDescriptorDacl() : SecurityDescriptorApi.AddAccessAllowedAceEx return code :" + Marshal.GetLastWin32Error());
}
}
pNewSd = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(SecurityDescriptorApi.SECURITY_DESCRIPTOR)));
int iSdRevision = (int)SecurityDescriptorApi.SECURITY_DESCRIPTOR_REVISION;
bRet = SecurityDescriptorApi.InitializeSecurityDescriptor(pNewSd, (uint)iSdRevision);
Console.WriteLine(Marshal.GetLastWin32Error());
Logger.Log("SecurityDescriptorApi.InitializeSecurityDescriptor returns errorcode: " + errorReturn);
bRet = SecurityDescriptorApi.IsValidSecurityDescriptor(pNewSd);
Console.WriteLine(Marshal.GetLastWin32Error());
Logger.Log("SecurityDescriptorApi.IsValidSecurityDescriptor returns errorcode: " + Marshal.GetLastWin32Error());
bRet = SecurityDescriptorApi.SetSecurityDescriptorDacl(
pNewSd,
lpbDaclPresent,
pNewDacl,
lpbDaclDefaulted);
Console.WriteLine(Marshal.GetLastWin32Error());
Logger.Log("SecurityDescriptorApi.SetSecurityDescriptorDacl returns errorcode: " + Marshal.GetLastWin32Error());
bRet = SecurityDescriptorApi.IsValidSecurityDescriptor(pNewSd);
Console.WriteLine(Marshal.GetLastWin32Error());
Logger.Log("SecurityDescriptorApi.IsValidSecurityDescriptor returns errorcode: " + Marshal.GetLastWin32Error());
pSecurityDescriptorOut = IntPtr.Zero;
uint lpdwBufferLength = (uint)Marshal.SizeOf(typeof(SecurityDescriptorApi.SECURITY_DESCRIPTOR));
bRet = SecurityDescriptorApi.MakeSelfRelativeSD(pNewSd, out pSecurityDescriptorOut, ref lpdwBufferLength);
Console.WriteLine(Marshal.GetLastWin32Error());
bRet = SecurityDescriptorApi.MakeSelfRelativeSD(pNewSd, out pSecurityDescriptorOut, ref lpdwBufferLength);
Console.WriteLine(Marshal.GetLastWin32Error());
bRet = SecurityDescriptorApi.IsValidSecurityDescriptor(pNewSd);
Console.WriteLine(Marshal.GetLastWin32Error());
Logger.Log("SecurityDescriptorApi.IsValidSecurityDescriptor returns errorcode: " + Marshal.GetLastWin32Error());
/*bRet = SecurityDescriptorApi.SetSecurityDescriptorGroup(
* pNewSd,
* sSECURITY_DESCRIPTOR.group,
* false);
* Console.WriteLine(Marshal.GetLastWin32Error());
* Logger.Log("SecurityDescriptorApi.SetSecurityDescriptorGroup returns errorcode: " + Marshal.GetLastWin32Error());
*
* bRet = SecurityDescriptorApi.IsValidSecurityDescriptor(pNewSd);
* Console.WriteLine(Marshal.GetLastWin32Error());
* Logger.Log("SecurityDescriptorApi.IsValidSecurityDescriptor returns errorcode: " + Marshal.GetLastWin32Error());
*
* bRet = SecurityDescriptorApi.SetSecurityDescriptorOwner(
* pNewSd,
* sSECURITY_DESCRIPTOR.owner,
* false);
* Console.WriteLine(Marshal.GetLastWin32Error());
* Logger.Log("SecurityDescriptorApi.SetSecurityDescriptorOwner returns errorcode: " + Marshal.GetLastWin32Error());
*
* bRet = SecurityDescriptorApi.IsValidSecurityDescriptor(pNewSd);
* Console.WriteLine(Marshal.GetLastWin32Error());
* Logger.Log("SecurityDescriptorApi.IsValidSecurityDescriptor returns errorcode: " + Marshal.GetLastWin32Error());
*
* uint pControl; uint lpdwRevision;
* bRet = SecurityDescriptorApi.GetSecurityDescriptorControl(
* pSecurityDesriptorIn,
* out pControl,
* out lpdwRevision);
* Console.WriteLine(Marshal.GetLastWin32Error());
* Logger.Log("SecurityDescriptorApi.SetSecurityDescriptorControl returns errorcode: " + Marshal.GetLastWin32Error());
*
* bRet = SecurityDescriptorApi.SetSecurityDescriptorControl(
* pNewSd,
* pControl,
* pControl);
* Console.WriteLine(Marshal.GetLastWin32Error());
* Logger.Log("SecurityDescriptorApi.SetSecurityDescriptorControl returns errorcode: " + Marshal.GetLastWin32Error());
*
* bRet = SecurityDescriptorApi.IsValidSecurityDescriptor(pNewSd);
* Console.WriteLine(Marshal.GetLastWin32Error());
* Logger.Log("SecurityDescriptorApi.IsValidSecurityDescriptor returns errorcode: " + Marshal.GetLastWin32Error());
*
* if (pNewDacl != IntPtr.Zero)
* {
* SecurityDescriptorApi.LocalFree(pNewDacl);
* }
*
* uint lpdwAbsoluteSDSize = 0, lpdwDaclSize = 0, lpdwSaclSize = 0, lpdwOwnerSize = 0, lpdwPrimaryGroupSize = 0;
* IntPtr pAbsoluteSD, pDacl, pSacl, pOwner, pPrimaryGroup;
* lpdwAbsoluteSDSize = (uint)Marshal.SizeOf(typeof(SecurityDescriptorApi.SECURITY_DESCRIPTOR));
* bRet = SecurityDescriptorApi.MakeAbsoluteSD(pNewSd, out pAbsoluteSD,
* ref lpdwAbsoluteSDSize, out pDacl, ref lpdwDaclSize,
* out pSacl, ref lpdwSaclSize,
* out pOwner, ref lpdwOwnerSize,
* out pPrimaryGroup, ref lpdwPrimaryGroupSize);
* Console.WriteLine(Marshal.GetLastWin32Error());
* Logger.Log("SecurityDescriptorApi.MakeAbsoluteSD returns errorcode: " + Marshal.GetLastWin32Error()); */
if (!bRet)
{
pSecurityDescriptorOut = IntPtr.Zero;
}
}
catch (Exception ex)
{
pSecurityDescriptorOut = IntPtr.Zero;
errorReturn = (uint)Marshal.GetLastWin32Error();
Logger.LogException("SecurityDescriptorWrapper.ApiGetLogOnUserHandle()", ex);
}
return(errorReturn);
}