samba - Dec 2014 - Samba 4.2 : External authentification and rights access management ?

Hello everyone,

I am looking to replace a file sharing solution, based on webdav, by 
samba 4.2.

I?ve just read the technical notes on the wiki but couldyou tell me more 
about the technical feasibility of the following:

*1/* Can Samba 4.2 authenticate users through an already set external 
LDAP server rather than its own internal user/password database ?

*2/* Is it possible to customize the rights access management? Rather 
than using the Windows ACL, simply call an external program that will 
tell whether or not a user can access (or write) to files and directories.

I already developed this addon for Webdav and previously Jlan which are 
php and java programs.

In advance, thank you

Victor


?
________________
Ce message et les ?ventuels documents joints peuvent contenir des informations
confidentielles. Au cas o? il ne vous serait pas destin?, nous vous remercions
de bien vouloir le supprimer et en aviser imm?diatement l'exp?diteur. Toute
utilisation de ce message non conforme ? sa destination, toute diffusion ou
publication, totale ou partielle et quel qu'en soit le moyen est
formellement interdite. Les communications sur internet n'?tant pas
s?curis?es, l'int?grit? de ce message n'est pas assur?e et la soci?t?
?mettrice ne peut ?tre tenue pour responsable de son contenu.

On Thu, Dec 18, 2014 at 10:46:38AM +0100, Victor d'Agostino
wrote:
> Hello everyone,
> 
> I am looking to replace a file sharing solution, based on webdav, by
> samba 4.2.
> 
> I?ve just read the technical notes on the wiki but couldyou tell me
> more about the technical feasibility of the following:
> 
> *1/* Can Samba 4.2 authenticate users through an already set
> external LDAP server rather than its own internal user/password
> database ?
No.
> *2/* Is it possible to customize the rights access management?
> Rather than using the Windows ACL, simply call an external program
> that will tell whether or not a user can access (or write) to files
> and directories.
and No.
> I already developed this addon for Webdav and previously Jlan which
> are php and java programs.
Sorry :-(.