public static LSA_UNICODE_STRING InitLSAString(string val)
{
LSA_UNICODE_STRING lsastring = new LSA_UNICODE_STRING();
lsastring.Buffer = val;
lsastring.Length = (UInt16)(val.Length * sizeof(char));
lsastring.MaximumLength = (UInt16)(lsastring.Length + sizeof(char));
return(lsastring);
}
protected void LoadInternal(string target)
{
this.Messages = new List <string> {
};
this.Privileges = new List <PrivilegeAndPrincipals> {
};
this.IsDisposed = false;
this.Success = false;
this.PolicyHandle = IntPtr.Zero;
IntPtr temphandle = IntPtr.Zero;
LSA_OBJECT_ATTRIBUTES lsainfo = NativeHelper.InitLSAObjectAttributes();
LSA_UNICODE_STRING systemname = (target == null) ? default(LSA_UNICODE_STRING) : NativeHelper.InitLSAString(target);
uint rc = Advapi32.LsaOpenPolicy(systemname, ref lsainfo, LSA_POLICY_ACCESS.POLICY_ALL_ACCESS, out temphandle);
this.Success = (rc == 0);
if (this.Success)
{
this.PolicyHandle = temphandle;
List <string> privlist = NativeHelper.GetPrivilegeList();
foreach (string priv in privlist)
{
GetPrivilegeAndPrincipals(priv);
}
}
else
{
string errmsg = null;
if (NativeHelper.GetLastError(out errmsg) != 0)
{
Messages.Add("\tLsaOpenPolicy: " + errmsg);
}
}
}
protected void GetPrivilegeAndPrincipals(string privName)
{
IntPtr enumbuffer = IntPtr.Zero;
ulong cnt = 0;
LSA_UNICODE_STRING lsapriv = NativeHelper.InitLSAString(privName);
uint rc = Advapi32.LsaEnumerateAccountsWithUserRight(PolicyHandle, lsapriv, out enumbuffer, out cnt);
if (rc == 0)
{
PrivilegeAndPrincipals privinfo = new PrivilegeAndPrincipals(privName);
for (int step = 0; step < (int)cnt; step++)
{
LSA_ENUMERATION_INFORMATION lsaenum = (LSA_ENUMERATION_INFORMATION)Marshal.PtrToStructure(enumbuffer, typeof(LSA_ENUMERATION_INFORMATION));
SidInfo sinfo = new SidInfo(lsaenum.Sid);
privinfo.Principals.AddSafe(sinfo);
privinfo.SidPrincipals.AddSafe(sinfo.Sid);
try
{ enumbuffer = (IntPtr)((Int64)enumbuffer + Marshal.SizeOf(typeof(LSA_ENUMERATION_INFORMATION))); }
catch (Exception)
{ break; }
}
this.Privileges.AddSafe(privinfo);
}
else
{
string errmsg = null;
if (NativeHelper.GetLastError(out errmsg) != 0)
{
Messages.Add("\tLsaEnumerateAccountsWithUserRight: " + errmsg);
}
}
}
internal static extern uint LsaEnumerateAccountsWithUserRight(IntPtr PolicyHandle,
LSA_UNICODE_STRING UserRights,
out IntPtr EnumerationBuffer,
out ulong CountReturned);
internal static extern uint LsaOpenPolicy(LSA_UNICODE_STRING SystemName,
ref LSA_OBJECT_ATTRIBUTES ObjectAttributes,
LSA_POLICY_ACCESS AccessMask,
out IntPtr PolicyHandle);
