openldap-bugs July 2023

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[Issue 10023] New: Asynchronous connects are broken
by openldap-its＠openldap.org 10 Jul '23

10 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=10023 Issue ID: 10023 Summary: Asynchronous connects are broken Product: OpenLDAP Version: 2.5.14 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: ipuleston(a)sonicwall.com Target Milestone: --- We have a port of OpenLDAP client running in an embedded system, which is using asynchronous connects to the LDAP server. We have been using OpenLDAP 2.4.40 for a long time, and I just upgraded it to use 2.5.14 (as the current LTS release). After doing this, async connects to the LDAP server no longer work. You can see this in the following debug output: A successful async connect with 2.4.40: ldap_send_initial_request ldap_new_connection 1 1 0 ldap_int_open_connection ldap_connect_to_host: TCP Ian-DC1.sd80.com:389 ldap_pvt_gethostbyname_a: host=Ian-DC1.sd80.com, r=0 ldap_new_socket: 251 ldap_prepare_socket: 251 ldap_connect_to_host: Trying 192.168.168.3:389 ldap_pvt_connect: fd: 251 tm: 10 async: -1 ldap_ndelay_on: 251 attempting to connect: connect errno: 115 ldap_int_poll: fd: -1 tm: 0 A failed async connect with 2.5.14: ldap_send_initial_request ldap_new_connection 1 1 0 ldap_int_open_connection ldap_connect_to_host: TCP Ian-DC1.sd80.com:389 ldap_pvt_gethostbyname_a: host=Ian-DC1.sd80.com, r=0 ldap_new_socket: 247 ldap_prepare_socket: 247 ldap_connect_to_host: Trying 10.21.61.3:389 ldap_pvt_connect: fd: 247 tm: 10 async: -1 ldap_ndelay_on: 247 attempting to connect: connect errno: 115 ldap_open_defconn: successful ldap_send_server_request Sending Bind Request, len=0x6ca10c1f ldap_write: want=63 error=Resource temporarily unavailable Note that in both cases the connect attempt returns errno 115, EINPROGRESS, meaning that it has not completed. But after that: ● 2.4.40 calls ldap_int_poll (via ldap_send_initial_request -> ldap_int_check_async_open) to begin the wait for async completion. ● 2.5.14 instead reports a successful connect, and tries to send the bind which fails since thre socket is not yet connected. I tracked the problem down to a change made for ITS #8022 "an async connect may still succeed immediately" in this commit: https://git.openldap.org/openldap/openldap/-/commit/ae6347bac12bbf843678a83… That change in ldap_new_connection makes it set lconn_status for an async connect to LDAP_CONNST_CONNECTED rather than LDAP_CONNST_CONNECTING if ldap_int_open_connection returns 0. The problem is that ldap_int_open_connection returns 0 after getting the EINPROGRESS. ldap_connect_to_host returns -2 for the latter, but ldap_int_open_connection doesn't check for that, returning 0 for any return code other than -1. I think that the bug is actually in ldap_int_open_connection rather than in the above commit. It should probably return -2 when ldap_connect_to_host returns that. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10011] New: Incompatibilities with stricter C99 compilers
by openldap-its＠openldap.org 10 Jul '23

10 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=10011 Issue ID: 10011 Summary: Incompatibilities with stricter C99 compilers Product: OpenLDAP Version: 2.6.4 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: build Assignee: bugs(a)openldap.org Reporter: sam(a)gentoo.org Target Milestone: --- Newer C compilers (>= Clang 16 and likely >= GCC 14) reject some constructs removed in C99 like implicit function declarations and implicit ints. Some compilers are also starting to reject obsolete K&R prototypes which were removed in C23. I've filed an MR at https://git.openldap.org/openldap/openldap/-/merge_requests/605 to address the issues in configure as well as a small number of issues in the codebase itself. For more information, see LWN.net [0] or LLVM's Discourse [1], the Gentoo wiki [2], or the (new) c-std-porting mailing list [3]. [0] https://lwn.net/Articles/913505/ [1] https://discourse.llvm.org/t/configure-script-breakage-with-the-new-werror-… [2] https://wiki.gentoo.org/wiki/Modern_C_porting [3] hosted at lists.linux.dev. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10079] New: Facing syncrepl issue after selecting filter and attrs
by openldap-its＠openldap.org 05 Jul '23

05 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=10079 Issue ID: 10079 Summary: Facing syncrepl issue after selecting filter and attrs Product: OpenLDAP Version: 2.4.49 Hardware: x86_64 OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: ramprasad.sharma(a)orange.com Target Milestone: --- I'm facing an issue, when I'm using replication without filter and attrs, it works fine but when I try it with filter and attrs , I get nentries=0 and replication dont happen.. what could be the possible issue, I tried many thing.. syncrepl rid=<%= @%> provider=ldaps://master.<%= @%>h:636/ bindmethod=simple binddn="cn=replication,dc=di-diod,dc=tech" credentials=<%= @%> searchbase="ou=people,dc=di-diod,dc=tech" filter="(objectClass=posixAccount)" attrs="cn,uid,x1sshPubKey,x2sshPubKey,uidNumber,gidNumber,homeDirectory,gecos,loginShell,description,sshPublicKey" scope=sub schemachecking=on type=refreshOnly interval=00:00:00:01 retry="30 5 300 3" I can use any help on call also.. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10078] New: segfault error 4 in in dynlist-2.5.so.0.1.8
by openldap-its＠openldap.org 05 Jul '23

05 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=10078 Issue ID: 10078 Summary: segfault error 4 in in dynlist-2.5.so.0.1.8 Product: OpenLDAP Version: 2.5.13 Hardware: All OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: gustav(a)spllg.de Target Milestone: --- whenever i execute an ldapsearch, slapd crashes and i find the following lines in /var/log/syslog segfault at 0 ip 00007f876bece9c1 sp 00007f876a1fc0c0 error 4 in dynlist-2.5.so.0.1.8[7f876becb000+6000] likely on CPU 0 (core 0, socket 0) Code: 48 29 d0 48 89 d7 48 89 c1 31 c0 83 c1 6c c1 e9 03 f3 48 ab 48 8b 84 24 10 02 00 00 4c 89 ef c7 84 24 a0 00 00 00 03 00 00 00 <48> 8b 00 ff 50 78 44 39 73 64 74 09 45 84 e4 0f 85 22 03 00 00 48 Stopping OpenLDAP: slapd. slapd.service: Deactivated successfully. the database had been imported from ldap-2.4.57 where ldap runs fine. is there anything i can do to fix the problem? -- You are receiving this mail because: You are on the CC list for the issue.

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openldap-bugs July 2023