In short, I have EAP-TLS auth, and I need to check if there is an LDAP object that has value of `TLS-Client-Cert-Subject-Alt-Name-Upn` in `krbCanonicalName` attribute and it's `createTimestamp` is less or equal than `TLS-Client-Cert-Valid-Since` value. 1. I found that `TLS-Client-Cert-Subject-Alt-Name-Upn` attribute is created only inside `authenticate { Auth-Type eap { ... }}` section. Is it correct that I have no access to certificate properties inside `authorize` section? 2. Next, I found that according to [rlm_ldap guide from networkradius](https://www.networkradius.com/doc/current/raddb/mods-available/ldap.html), ldap module can `look for user` only inside `authorize` section, but not inside `authenticate`. Is it correct I can not make a check for existence of an object in LDAP from `authenticate` section using `rlm_ldap` module, and only xlat-ing can be used? 3. I found that there are some xlat functions exposed by `rlm_ldap` module, but they are only mentioned in my `mods-available/ldap`, and not documented in `3.2.x` branch on github. I vave FreeRADIUS version from debian-stable and it is `3.2.1`. Is raddb/mods-available/ldap from master branch is useful as documentation for 3.2.1 ldap?