Re: (ITS#8047) TIMEOUT and NETWORK_TIMEOUT don't work properly with SSL

jsynacek@redhat.com wrote:

Full_Name: Jan Synacek Version: 2.4.40 OS: GNU/Linux URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (213.175.37.10)

TIMEOUT and NETWORK_TIMEOUT are not applied when trying to connect to a stalled server using SSL. The same scenario works when using an unencrypted connection.

This is a known issue - we don't have async connect/handshake APIs for these crypto libraries.

Reproducer:

1. set up a server for use with SSL (localhost connection is enough)
2. set NETWORK_TIMEOUT and TIMEOUT in ldap.conf
3. slapd -u ldap -g ldap -h "ldapi:/// ldaps://localhost" -d1
4. verify that connection works ldapsearch -x -H ldaps://localhost
5. kill -STOP <server pid>
6. ldapsearch -x -H ldaps://localhost At this point, the client hangs and doesn't properly time out.

For more information including a packet capture, see the original bug report: https://bugzilla.redhat.com/show_bug.cgi?id=1186562#c4

This bug doesn't seem to be crypto library specific. I reproduced it with both moznss and openssl.