//sys	getSidSubAuthorityCount(sid *SID) (count *uint8) = advapi32.GetSidSubAuthorityCount
//sys	getSidSubAuthority(sid *SID, index uint32) (subAuthority *uint32) = advapi32.GetSidSubAuthority
//sys	isValidSid(sid *SID) (isValid bool) = advapi32.IsValidSid

// The security identifier (SID) structure is a variable-length
// structure used to uniquely identify users or groups.
type SID struct{}

	procIsValidSecurityDescriptor                            = modadvapi32.NewProc("IsValidSecurityDescriptor")
	procIsValidSid                                           = modadvapi32.NewProc("IsValidSid")
	procIsWellKnownSid                                       = modadvapi32.NewProc("IsWellKnownSid")
	procLookupAccountNameW                                   = modadvapi32.NewProc("LookupAccountNameW")

			length++
		}
	}

	for i := length - 1; i >= 0; i-- {
		o := byte(n >> uint(i*7))
		o &= 0x7f
		if i != 0 {
			o |= 0x80
		}

		b.add(o)
	}
}

func isValidOID(oid encoding_asn1.ObjectIdentifier) bool {
	if len(oid) < 2 {
		return false
	}

	if oid[0] > 2 || (oid[0] <= 1 && oid[1] >= 40) {
		return false
	}

	for _, v := range oid {
		if v < 0 {

     * @param response
     * @throws IOException
     */
    private void treeConnected ( SmbTransportImpl transport, SmbSessionImpl sess, TreeConnectResponse response ) throws CIFSException {
        if ( !response.isValidTid() ) {
            throw new SmbException("TreeID is invalid");
        }
        this.tid = response.getTid();
        String rsvc = response.getService();
        if ( rsvc == null && !transport.isSMB2() ) {