smb_token_is_member
if (smb_token_is_member(token, smb_wka_get_sid("Administrators")))
if (smb_token_is_member(token, smb_wka_get_sid("Power Users")))
if (smb_token_is_member(token, smb_wka_get_sid("Backup Operators")))
static boolean_t smb_token_is_member(smb_token_t *, smb_sid_t *);