[Dovecot] Adding support for a new storage format - plugin?

Hi,

I've spent a little bit of time looking at the dovecot source (from the unstable 2.0 development tree), and I think I'm starting to get it together...

Background: I'm interested in dovecot to provide IMAP access to an existing database backed server store (http://www.openchange.org for more details). The goal is to provide parallel access using either IMAP or the exchange RPC protocol.

If I understand this stuff: the virtual mailbox plugin is a potential example here.

• I can potentially provide access to the store using a plugin. It looks like

• I may need to also provide an authentication plugin (not sure whether I can just re-use the existing ldap backend - quite possibly a useful option in my scenario)
• I probably can't use the existing SQL code, since it uses its own schema.
• I may need to provide some locking to ensure things are always in a consistent state for both IMAP and exchange RPC.

Comments? Suggestions?

Brad