private static byte[] ParseSddlForm(string sddlForm)
{
string sid = sddlForm;
// If only 2 characters long, can't be a full SID string - so assume
// it's an attempted alias. Do that conversion first.
if (sddlForm.Length == 2)
{
WellKnownAccount acct = WellKnownAccount.LookupBySddlForm(sddlForm);
if (acct == null)
{
throw new ArgumentException(
"Invalid SDDL string - unrecognized account: " + sddlForm,
"sddlForm");
}
if (!acct.IsAbsolute)
{
throw new NotImplementedException(
"Mono unable to convert account to SID: "
+ (acct.Name != null ? acct.Name : sddlForm));
}
sid = acct.Sid;
}
string[] elements = sid.ToUpperInvariant().Split('-');
int numSubAuthorities = elements.Length - 3;
if (elements.Length < 3 || elements[0] != "S" || numSubAuthorities > 15)
{
throw new ArgumentException("Value was invalid.");
}
if (elements[1] != "1")
{
throw new ArgumentException("Only SIDs with revision 1 are supported");
}
byte[] buffer = new byte[8 + (numSubAuthorities * 4)];
buffer[0] = 1;
buffer[1] = (byte)numSubAuthorities;
ulong authority;
if (!TryParseAuthority(elements[2], out authority))
throw new ArgumentException("Value was invalid."); }
private static byte[] ParseSddlForm(string sddlForm)
{
string sid = sddlForm;
// If only 2 characters long, can't be a full SID string - so assume
// it's an attempted alias. Do that conversion first.
if (sddlForm.Length == 2)
{
WellKnownAccount acct = WellKnownAccount.LookupBySddlForm(sddlForm);
if (acct == null)
{
throw new ArgumentException(
"Invalid SDDL string - unrecognized account: " + sddlForm,
"sddlForm");
}
if (!acct.IsAbsolute)
{
throw new NotImplementedException(
"Mono unable to convert account to SID: "
+ (acct.Name != null ? acct.Name : sddlForm));
}
sid = acct.Sid;
}
string[] elements = sid.ToUpperInvariant().Split('-');
int numSubAuthorities = elements.Length - 3;
if (elements.Length < 3 || elements[0] != "S" || numSubAuthorities > 15)
{
throw new ArgumentException("Value was invalid.");
}
if (elements[1] != "1")
{
throw new ArgumentException("Only SIDs with revision 1 are supported");
}
byte[] buffer = new byte[8 + (numSubAuthorities * 4)];
buffer[0] = 1;
buffer[1] = (byte)numSubAuthorities;
ulong authority;
if (!TryParseAuthority(elements[2], out authority))
{
throw new ArgumentException("Value was invalid.");
}
buffer[2] = (byte)((authority >> 40) & 0xFF);
buffer[3] = (byte)((authority >> 32) & 0xFF);
buffer[4] = (byte)((authority >> 24) & 0xFF);
buffer[5] = (byte)((authority >> 16) & 0xFF);
buffer[6] = (byte)((authority >> 8) & 0xFF);
buffer[7] = (byte)((authority >> 0) & 0xFF);
for (int i = 0; i < numSubAuthorities; ++i)
{
uint subAuthority;
if (!TryParseSubAuthority(elements[i + 3],
out subAuthority))
{
throw new ArgumentException("Value was invalid.");
}
// Note sub authorities little-endian!
int offset = 8 + (i * 4);
buffer[offset + 0] = (byte)(subAuthority >> 0);
buffer[offset + 1] = (byte)(subAuthority >> 8);
buffer[offset + 2] = (byte)(subAuthority >> 16);
buffer[offset + 3] = (byte)(subAuthority >> 24);
}
return(buffer);
}
