Re: How to distinguish LDAP requests?

[Pierangelo Masarati <ando@sys-net.it>]

Mimmo Di Ianni wrote:

> I must implement a daemon which intercepts ldap requests and forwards 
> them to an effective LDAP Server (in the case of a read operation) or 
> to other backend (in the case of a write operation). Once the daemon 
> accepts a socket connection how can I distinguish what type of 
> operation my client requests? Is it possible without interact with 
> server LDAP?
> Every answer will be a lot appreciate!


A clean way to do that is to use OpenLDAP's slapd with a back-null 
database and write an overlay that wraps an instance of back-ldap and 
redirects the requests to two different URIs based on the type of the 
operation, which is stored in the op_tag field of the Operation 
structure.  Basically like what the "chain" overlay does (see 
back-ldap/chain.c) when extracting the URI from a referral, but much 
simpler.

p.


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