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(ITS#8908) LMDB Documentation for MDB_XXX_MULTIPLE
by karl＠waclawek.net 26 Aug '18

26 Aug '18

Full_Name: Karl Waclawek Version: LMDB 0.9.22 OS: Windows 10 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (2607:fea8:7a80:814:3ca9:e8f6:801c:d6f8) The documentation in lmdb.h for MDB_GET_MULTIPLE, MDB_NEXT_MULTIPLE and MDB_PREV_MULTIPLE seems to have two issues: 1) The documentation indicates that both, the key and data, are returned, but in reality only the data is returned. 2) The documentation states that MDB_GET_MULTIPLE moves the cursor. This does not seem to be true.

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Re: (ITS#8650) EAGAIN from gnutls_handshake not respected
by ryan＠nardis.ca 26 Aug '18

26 Aug '18

Hi Karthik, Sorry about the lack of updates on this one. It looks clear that my patch for this ITS was wrong and needs to be reverted. Looking again at the original issue, after reverting the patch, I've found that the behaviour varies with GnuTLS version. I need to figure out why this is, which probably means spending some time bisecting GnuTLS changes. If I create a patch to log some additional debug info about the GnuTLS setup, would you be willing to run it in your environment? For example I'm curious whether EAGAIN is being returned from the read side or write side (guessing read, but would be nice to confirm). thanks Ryan

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(ITS#8907) Memory leak on mass adding users to ldap
by nowhereman＠nowhereman.ru 24 Aug '18

24 Aug '18

Full_Name: Alexey Karpov Version: 2.4.44 OS: RHEL 7.5 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (87.245.195.105) We have two OpenLDAP servers version 2.4.44, running on RHEL 7.5, replicated in mirror mode and working as active-standby. OpenLDAP works as userstore for WSO2 Identity Server. Servers configured with tls security and valid certificates. All requests come to first server (ldap1), second server (ldap2) working as reserve. When we start batch adding users (about 3-5 inserts per second, mixed with queries and changing values), we observe a memory leak on server ldap1, load-dependent, up to gigabyte per minute, and the lag in sync between servers. If we stop server ldap2, leaking stops and server ldap1 working properly. Memory is not freeing until server is restarted. Also we try this setup with version 2.4.44 on Centos 7 and custom builded version 2.4.46 on Centos 7. Results are the same - on batch adding users, server, receiving requests has memory leak and leaking stops when second server stopped.

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(ITS#8906) Fail to download package in yocto project
by zyong＠qti.qualcomm.com 24 Aug '18

24 Aug '18

Full_Name: Yong Zhang Version: 2.4.43 OS: linux URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (180.166.53.43) ftp://ftp.openldap.org/pub/OpenLDAP/openldap-release/${BP}.tgz is not available

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(ITS#8905) Client side debug log should include timestamps
by quanah＠openldap.org 21 Aug '18

21 Aug '18

Full_Name: Quanah Gibson-Mount Version: 2.4.46 OS: N/A URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (47.208.148.239) When specifying full debug on the client side (-d -1), there are no timestamps provided. This is problematic when trying to diagnose where the client side is having issues when connecting to the slapd server. I.e., an ldapwhoami command that takes 19 seconds to go from start to finish, while the slapd side shows everything taking 1 second or less.

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(ITS#8904) Cannot enable SSL3 when disabled by default in OpenSSL
by mhonek＠redhat.com 21 Aug '18

21 Aug '18

Full_Name: Matus Honek Version: 2.4.46 OS: Fedora 28 URL: ftp://ftp.openldap.org/incoming/Matus-Honek-180821.patch Submission from: (NULL) (213.175.37.10) When in OpenSSL one disables SSL3 by default (the SSL_OP_NO_SSLv3 is set by default, like in recent Fedora distributions) then with the current code in OpenLDAP it is not possible to have it re-enabled using TLS_PROTOCOL_MIN configuration option. The attached patch explicitly clears the SSL_OP_NO_SSLv3 option when TLS_PROTOCOL_MIN is set so that SSL3 should be enabled. Feel free to use it; I believe IPR should not be necessary for a one liner. However, in the future when more protocols will be disabled by default (possibly soon for TLS1.0 and TLS1.1), similar fixes will be needed for those as well. Or, it may be decided to not support the protocols that are disabled by default but in that case probably a log message should be issued once user tries to enable a by default disabled protocol.

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RE: (ITS#8848) New LDAP URL syntax to support binding to specific IP address at client side
by sudhir.singam＠nokia.com 21 Aug '18

21 Aug '18

Hi, Any comments ?? Regards, Sudhir Singam DELIVERING BEST-IN-CLASS PLATFORM is our vision -----Original Message----- From: openldap-its(a)OpenLDAP.org <openldap-its(a)OpenLDAP.org>=20 Sent: Monday, May 07, 2018 12:02 PM To: Singam, Sudhir (Nokia - IN/Bangalore) <sudhir.singam(a)nokia.com> Subject: Re: (ITS#8848) New LDAP URL syntax to support binding to specific = IP address at client side *** THIS IS AN AUTOMATICALLY GENERATED REPLY *** Thanks for your report to the OpenLDAP Issue Tracking System. Your report has been assigned the tracking number ITS#8848. One of our support engineers will look at your report in due course. Note that this may take some time because our support engineers are volunteers. They only work on OpenLDAP when they have spare time. If you need to provide additional information in regards to your issue report, you may do so by replying to this message. Note that any mail sent to openldap-its(a)openldap.org with (ITS#8848) in the subject will automatically be attached to the issue report. mailto:openldap-its@openldap.org?subject=3D(ITS#8848) You may follow the progress of this report by loading the following URL in a web browser: http://www.OpenLDAP.org/its/index.cgi?findid=3D8848 Please remember to retain your issue tracking number (ITS#8848) on any further messages you send to us regarding this report. If you don't then you'll just waste our time and yours because we won't be able to properly track the report. Please note that the Issue Tracking System is not intended to be used to seek help in the proper use of OpenLDAP Software. Such requests will be closed. OpenLDAP Software is user supported. http://www.OpenLDAP.org/support/ -------------- Copyright 1998-2007 The OpenLDAP Foundation, All Rights Reserved.

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(ITS#8903) Add Bind Early Option to ldappasswd
by randall＠mason.ch 20 Aug '18

20 Aug '18

Full_Name: Randall Mason Version: HEAD OS: Debian Linux URL: https://gist.githubusercontent.com/ClashTheBunny/a9d2b8d0119964a0eb8a5e2ed7… Submission from: (NULL) (67.165.132.233) ldappasswd is slightly different from a standard passwd workflow in that it requests an old password, then a new password, then the old password again. This confuses people who are used to the unix passwd tool as well as people who use password manager. I've seen quite a few people who have generated a new password, overwriting the old one, and then need a password reset because they still need to bind to modify their password. This patch adds an option to bind at the beginning of the process so that you can pass '-E' to ldappasswd and it will bind early in the process so that the process is the same as the standard passwd. All it does is run the bind towards the beginning of the process instead of the end. The attached patch file is derived from OpenLDAP Software. All of the modifications to OpenLDAP Software represented in the following patch(es) were developed by Randall Mason randall(a)mason.ch. I have not assigned rights and/or interest in this work to any party. I, Randall Mason, hereby place the following modifications to OpenLDAP Software (and only these modifications) into the public domain. Hence, these modifications may be freely used and/or redistributed for any purpose with or without attribution and/or other notice.

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(ITS#8902) man page update for slapadd(5)
by quanah＠openldap.org 20 Aug '18

20 Aug '18

Full_Name: Quanah Gibson-Mount Version: 2.4.46 OS: N/A URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (47.208.148.239) The man page for slapadd's -w option needs to be updated to note that it's generally only safe to use with a cold slapcat.

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(ITS#8901) slapd segfaults in mdb_env_reader_dest
by ckowalczyk＠suse.com 20 Aug '18

20 Aug '18

Full_Name: Chris Kowalczyk Version: 2.4.41 OS: SLE12 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (2620:113:80c0:5::2222) Hello, I have been experiencing segfaults in mdb_env_reader_dest happening randomly, only from time to time, during shutting off openldap. After some investigation I narrowed the problem down to mdb_env_reader_dest destructor function being called after its object had been deleted while powering off the application. mdb_env_reader_dest was called automatically, because it was agginned to the object in pthread_key_create call: https://github.com/openldap/openldap/blob/master/libraries/liblmdb/mdb.c#L4… The problem was not happening often, and always during powering off, so no data was lost etc. However, due to its annoyance, I prepared a simple patch, which prevents mdb_env_reader_dest function being called if the object was already deleted. The patch works fine, I haven't seen the problem since it was introduced. I am using OpenLDAP 2.4.41, but the code seems to be the same in other versions as well. Would you like me to create a pull request for it? ========================== === The backtrace: ========================== Program terminated with signal 11, Segmentation fault. #0 mdb_env_reader_dest (ptr=0x7f4a9c71c080) at ../../../libraries/liblmdb/mdb.c:4050 4050 reader->mr_pid = 0; #thread apply all bt Thread 2 (LWP 20920): #0 0x00007f4a9ac31d9d in close () at ../sysdeps/unix/syscall-template.S:84 #1 0x000055902eaeae8c in mdb_env_close1 (env=env@entry=0x55902fce50e0) at ../../../libraries/liblmdb/mdb.c:4756 #2 0x000055902eaeb578 in mdb_env_close1 (env=0x55902fce50e0) at ../../../libraries/liblmdb/mdb.c:4779 #3 mdb_env_close (env=0x55902fce50e0) at ../../../libraries/liblmdb/mdb.c:4778 #4 0x000055902ea69114 in mdb_db_close (be=0x55902faeb300, cr=<optimized out>) at init.c:340 #5 0x000055902ea3815b in over_db_close (be=0x55902faeb300, cr=0x0) at backover.c:182 #6 0x000055902e9d8c0b in backend_shutdown (be=0x55902faeb300, be@entry=0x0) at backend.c:376 #7 0x000055902e9fa258 in slap_shutdown (be=be@entry=0x0) at init.c:232 #8 0x000055902e9af12f in main (argc=<optimized out>, argv=<optimized out>) at main.c:1027 Thread 1 (LWP 20928): #0 mdb_env_reader_dest (ptr=0x7f4a9c71c080) at ../../../libraries/liblmdb/mdb.c:4050 #1 0x00007f4a9ac2a512 in __nptl_deallocate_tsd () at pthread_create.c:176 #2 0x00007f4a9ac2a767 in start_thread (arg=0x7f4a97acc700) at pthread_create.c:347 #3 0x00007f4a9a968aad in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 # frame 0 #0 mdb_env_reader_dest (ptr=0x7f4a9c71c080) at ../../../libraries/liblmdb/mdb.c:4050 4050 reader->mr_pid = 0; #p reader $1 = (MDB_reader *) 0x7f4a9c71c080 #p *reader Cannot access memory at address 0x7f4a9c71c080 ========================== === The proposed patch: ========================== diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c index 6bdf3151d..56212151b 100644 --- a/libraries/liblmdb/mdb.c +++ b/libraries/liblmdb/mdb.c @@ -4692,6 +4692,11 @@ mdb_env_close0(MDB_env *env, int excl) if (env->me_flags & MDB_ENV_TXKEY) { pthread_key_delete(env->me_txkey); + + // No need to call desctructor anymore, as all pid + // values are cleared below. + env->me_txkey = NULL; + #ifdef _WIN32 /* Delete our key from the global list */ for (i=0; i<mdb_tls_nkeys; i++)

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