Bug report: TLS SNI for LDAP userdb/passdb

[Tobias Wolter]

Cheers,

Dovecot 2.3.4.1 (Debian stable) here, and the changelog does not offer
any hope of salvation, so a bug report it is.

The LDAP connections for userdb/passdb do not support SNI via TLS.

Simple construct to reproduce this:

0.) Have a.pem with SAN `foo.example.com`, b.pem with `bar.example.com`
1.) Configure haproxy frontend with `bind *:636 ssl crt /foo/a.pem ssl 
    crt /foo/b.pem`
2.) Try to use ldaps://bar.example.com/ in passdb, receive
    "auth: Error: LDAP: Can't connect to server: ldaps://bar.example.com"

Expectation, of course, would be for this to work; most libraries
should support it, it's probably just a matter of convincing the
appropriate binding.

Kind regards,
-towo
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: This is a digitally signed message part
URL: <https://dovecot.org/pipermail/dovecot/attachments/20220914/a57c8d53/attachment.sig>