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http://issues.apache.org/bugzilla/show_bug.cgi?id=36563 Summary: mod_ldap caching breaks when value is NULL Product: Apache httpd-2.0 Version: 2.0.53 Platform: Other OS/Version: other Status: NEW Severity: normal Priority: P2 Component: mod_ldap AssignedTo: [email protected] ReportedBy: [EMAIL PROTECTED] I am author of mod_vhost_ldap (second module based on mod_ldap :-) and I found some rather nasty bug in mod_ldap caching. There is error in caching, when any attribute returned from LDAP is null, then mod_ldap caches only attributes fetched before this null attribute. Example from logs: (first run) [Thu Sep 08 21:30:13 2005] [debug] mod_vhost_ldap.c(383): [client 172.16.21.2] [mod_vhost_ldap.c]: dn: apacheServerName=000001.tld,ou=VHosts,ou=web,dc=active24,dc=com [Thu Sep 08 21:30:13 2005] [debug] mod_vhost_ldap.c(395): [client 172.16.21.2] [mod_vhost_ldap.c]: processing apacheServerName: 000001.tld [Thu Sep 08 21:30:13 2005] [debug] mod_vhost_ldap.c(395): [client 172.16.21.2] [mod_vhost_ldap.c]: processing apacheServerAdmin: (null) [Thu Sep 08 21:30:13 2005] [debug] mod_vhost_ldap.c(395): [client 172.16.21.2] [mod_vhost_ldap.c]: processing apacheDocumentRoot: /var/www/00/10/04/000001.tld/www/ [Thu Sep 08 21:30:13 2005] [debug] mod_vhost_ldap.c(395): [client 172.16.21.2] [mod_vhost_ldap.c]: processing apacheScriptAlias: /var/www/00/10/04/000001.tld/cgi-bin [Thu Sep 08 21:30:13 2005] [debug] mod_vhost_ldap.c(395): [client 172.16.21.2] [mod_vhost_ldap.c]: processing apacheSuexecUid: 1004 [Thu Sep 08 21:30:13 2005] [debug] mod_vhost_ldap.c(395): [client 172.16.21.2] [mod_vhost_ldap.c]: processing apacheSuexecGid: 1004 (second run -> results from cache) [Thu Sep 08 21:30:18 2005] [debug] mod_vhost_ldap.c(383): [client 172.16.21.2] [mod_vhost_ldap.c]: dn: apacheServerName=000001.tld,ou=VHosts,ou=web,dc=active24,dc=com [Thu Sep 08 21:30:18 2005] [debug] mod_vhost_ldap.c(395): [client 172.16.21.2] [mod_vhost_ldap.c]: processing apacheServerName: 000001.tld [Thu Sep 08 21:30:18 2005] [debug] mod_vhost_ldap.c(395): [client 172.16.21.2] [mod_vhost_ldap.c]: processing apacheServerAdmin: (null) [Thu Sep 08 21:30:18 2005] [debug] mod_vhost_ldap.c(395): [client 172.16.21.2] [mod_vhost_ldap.c]: processing apacheDocumentRoot: (null) [Thu Sep 08 21:30:18 2005] [debug] mod_vhost_ldap.c(395): [client 172.16.21.2] [mod_vhost_ldap.c]: processing apacheScriptAlias: (null) [Thu Sep 08 21:30:19 2005] [notice] child pid 3379 exit signal Segmentation fault (11) Quick workaround is to move attributes which can be NULL to end or to define _all_ attributes in LDAP. Corect way is to fix this bug in mod_ldap. Since structure is returned ok on first run I think that there is a way how to fix it. I will look on this when I have some time. Ondrej. P.S.: Tested on 2.0.53, but I have checked 2.0.54 ChangeLog and diffs and it includes only addition of LDAPConnectionTimeout. -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
