Bug #72064 [Opn->Fbk]: ldap_connect sees correct args as *uninitialized*

Edit report at https://bugs.php.net/bug.php?id=72064&edit=1 ID: 72064 Updated by: bishop@php.net Reported by: hcoin at quietfountain dot com Summary: ldap_connect sees correct args as *uninitialized* -Status: Open +Status: Feedback Type: Bug Package: LDAP related Operating System: Ubuntu xenial PHP Version: 5.6.20 Block user comment: N Private report: N New Comment: Given the intermittent nature, I suspect the underlying system call is being interrupted. Can you try with LDAP_OPT_RESTART, as in: ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, 7); ldap_set_option(NULL, LDAP_OPT_RESTART, 1); $c=ldap_connect('ldaps://directory.foo.com'); // ... as before Previous Comments: ------------------------------------------------------------------------ [2016-04-20 13:48:48] hcoin at quietfountain dot com Description: ------------ Calls to ldap_connect with present and correct arguments randomly returns 'False'. Same code run again, even in the same debug session, succeeds. Single stepping with xdebug, examining the variables each step, shows no differences in any variable whether the bind call then fails or works. When it does fail, the debug log shows: 2016/04/20 07:36:49 [error] 4429#4429: *30 FastCGI sent in stderr: "PHP message: PHP Warning: ldap_bind(): Unable to bind to server: Can't contact LDAP server in /var/www/fusionpbx/foo.php on line 18 PHP message: PHP Stack trace: PHP message: PHP 1. {main}() /var/www/fusionpbx/foo.php:0 PHP message: PHP 2. ldap_bind(*uninitialized*, *uninitialized*, *uninitialized*) /var/www/fusionpbx/foo.php:18" while reading response header from upstream, client: 192.168.29.16, server: pbx, request: "GET /foo.php?XDEBUG_SESSION_START=netbeans-xdebug HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "pbx1.foo.com" Note: the 'ldaps'. This implementation requires the server to send the caller a valid certificate, but also requires the caller to send the server a valid certificate. dpkg -l | egrep 'ldap|php|ssl|tls' | grep -vi codec ii ldap-utils 2.4.42+dfsg-2ubuntu3 amd64 OpenLDAP utilities ii libcurl3-gnutls:amd64 7.47.0-1ubuntu2 amd64 easy-to-use client-side URL transfer library (GnuTLS flavour) ii libgnutls-deb0-28:amd64 3.3.20-1ubuntu1 amd64 GNU TLS library - main runtime library ii libgnutls-openssl27:amd64 3.4.10-4ubuntu1 amd64 GNU TLS library - OpenSSL wrapper ii libgnutls30:amd64 3.4.10-4ubuntu1 amd64 GNU TLS library - main runtime library ii libldap-2.4-2:amd64 2.4.42+dfsg-2ubuntu3 amd64 OpenLDAP libraries ii libssl1.0.0:amd64 1.0.2g-1ubuntu4 amd64 Secure Sockets Layer toolkit - shared libraries ii libssl1.0.2:amd64 1.0.2g-1+deb.sury.org~wily+1 amd64 Secure Sockets Layer toolkit - shared libraries ii openssl 1.0.2g-1+deb.sury.org~wily+1 amd64 Secure Sockets Layer toolkit - cryptographic utility ii php-cli 1:7.0+35ubuntu6 all command-line interpreter for the PHP scripting language (default) ii php-common 1:35ubuntu6 all Common files for PHP packages ii php-pear 1:1.10.1+submodules+notgz-6 all PEAR Base System ii php-xml 1:7.0+35ubuntu6 all DOM, SimpleXML, WDDX, XML, and XSL module for PHP [default] ii php5-cli 5.6.20+dfsg-1+deb.sury.org~wily+1 amd64 command-line interpreter for the php5 scripting language ii php5-common 5.6.20+dfsg-1+deb.sury.org~wily+1 amd64 Common files for packages built from the php5 source ii php5-curl 5.6.20+dfsg-1+deb.sury.org~wily+1 amd64 CURL module for php5 ii php5-fpm 5.6.20+dfsg-1+deb.sury.org~wily+1 amd64 server-side, HTML-embedded scripting language (FPM-CGI binary) ii php5-gd 5.6.20+dfsg-1+deb.sury.org~wily+1 amd64 GD module for php5 ii php5-imap 5.6.20+dfsg-1+deb.sury.org~wily+1 amd64 IMAP module for php5 ii php5-json 1.3.9-1+deb.sury.org~wily+4 amd64 JSON module for php5 ii php5-ldap 5.6.20+dfsg-1+deb.sury.org~wily+1 amd64 LDAP module for php5 ii php5-mcrypt 5.6.20+dfsg-1+deb.sury.org~wily+1 amd64 MCrypt module for php5 ii php5-memcache 3.0.8-5build1 amd64 memcache extension module for PHP5 ii php5-mysql 5.6.20+dfsg-1+deb.sury.org~wily+1 amd64 MySQL module for php5 ii php5-odbc 5.6.20+dfsg-1+deb.sury.org~wily+1 amd64 ODBC module for php5 ii php5-readline 5.6.20+dfsg-1+deb.sury.org~wily+1 amd64 Readline module for php5 ii php5-sqlite 5.6.20+dfsg-1+deb.sury.org~wily+1 amd64 SQLite module for php5 ii php5-xdebug 2.3.3-3+deb.sury.org~wily+1 amd64 Xdebug Module for PHP 5 rc php5.6-phpdbg 5.6.17+dfsg-5 amd64 server-side, HTML-embedded scripting language (PHPDBG binary) uname -a Linux pbx1.foo.com 4.4.0-18-generic #34-Ubuntu SMP Wed Apr 6 14:01:02 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux Test script: --------------- <?php $tls_cert="/etc/ldap/certs/pbx.client.rsa.midterm.pem"; $tls_key ="/etc/ldap/certs/pbx.client.rsa.midterm.key.pkcs8.pem"; #putenv("LDAPTLS_CACERT=$tls_cacert"); putenv("LDAPTLS_CERT=$tls_cert"); putenv("LDAPTLS_KEY=$tls_key"); $c=ldap_connect('ldaps://directory.foo.com'); var_dump($c); if (ldap_set_option($c, LDAP_OPT_PROTOCOL_VERSION, 3)) { echo "Using LDAPv3\n"; } else { echo "Failed to set protocol version to 3\n"; } ldap_set_option(NULL, LDAP_OPT_DEBUG_LEVEL, 7); $d=ldap_bind($c,'cn=Harry Coin,ou=people,dc=foo,dc=com','bar'); var_dump($d); exit; ?> ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=72064&edit=1