On Tue, Apr 21, 2015 at 12:58 PM, Howard Chu <[email protected]> wrote: > > [email protected] wrote: >> >> Full_Name: Andy >> Version: 2.4.30 >> OS: Debian Linux (Jessie) >> URL: ftp://ftp.openldap.org/incoming/ >> Submission from: (NULL) (67.188.115.159) >> >> >> Hello, >> >> When connecting over TLS to an LDAP server with high packet loss, my calls to >> ldap_sasl_bind_s() block forever some of the time despite have set a 10s >> limit >> on all of LDAP_OPT_NETWORK_TIMEOUT, LDAP_OPT_TIMEOUT and LDAP_OPT_TIMELIMIT. >> >> I see the following stack trace on the deadlocked process. >> >> @ 0x7f2ff0c0f8d0 (unknown) >> @ 0x7f2ff0c0eac0 __libc_read >> @ 0x5cdc68 sb_debug_read >> @ 0x5c26f5 tlso_bio_read >> @ 0x451b64 BIO_read >> @ 0x49bf86 ssl3_read_n >> @ 0x49d52b ssl3_get_record >> @ 0x49caea ssl3_read_bytes >> @ 0x496f61 ssl3_get_message >> @ 0x496944 ssl3_get_finished >> @ 0x5e4aab ssl3_connect >> @ 0x5e164b ssl23_connect >> @ 0x5c1b3c tlso_session_connect >> @ 0x5b6773 ldap_int_tls_start >> @ 0x5b3a77 ldap_int_open_connection >> @ 0x5a730e ldap_new_connection >> @ 0x5b3365 ldap_open_defconn >> @ 0x5a68e3 ldap_send_initial_request >> @ 0x5a4c1e ldap_sasl_bind >> @ 0x5a4d99 ldap_sasl_bind_s >> >> Inspecting the source, I see that SSL_connect() is called from >> tlso_session_connect(). Does openldap attempt to pass timeout information to >> openssl? >> >> Sorry for the vague bug report. The issue is non-deterministic so it is hard >> to >> provide too much information. Please let me know what I can do to be more >> helpful. >> >> I was able to find an old posting (from 2006) reporting a similar issue. I'm >> uncertain if the root cause is the same or not though. >> >> http://www.openldap.org/lists/openldap-software/200601/msg00440.html > > > There is no API for setting a timeout in the TLS library. > > http://www.openldap.org/lists/openldap-software/200707/msg00346.html
Thanks for the pointer. Feel free to close this issue. -Andy
