openldap-bugs April 2023

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[Issue 9953] New: Push replication issue for the pwdHistory attribute
by openldap-its＠openldap.org 10 Jul '23

10 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=9953 Issue ID: 9953 Summary: Push replication issue for the pwdHistory attribute Product: OpenLDAP Version: 2.4.57 Hardware: x86_64 OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: dh(a)dotlan.net Target Milestone: --- Hello, I'm using a master ldap instance with a push replication instance to external slaves using the ldap backend on Debian 11 (2.4.57) and I came across some replication issues that forces me to drop the slave dbs and do a manually fullsync everything this error occurs. The problem =========== I know that replication and maintaining a password policy is a complicated task, especially since the ppolicy overlay must be loaded and active in every instance (master, push instance, slave). This problem leads to interesting challanges. First, I encountered a problem where pwdChangedTime would be duplicate because the ppolicy overlay of the push instance and the back_ldap/slave instance would like to set it (which leads to a duplicate attribute error). To fix problem I backported the patch [1] to my local version of the slapd packages. After this problem was fixed, I've encountered the next problematic attribute: "pwdHistory". I've play around with some syncrepl settings, but in the end, it seems to be a similar issue. It looks likes the pwdHistory attribute is not yet present on the slave and both instances (push and slave) try to add the pwdHistory Attributes which leads to a problem where both entries collied (pwdHistory: value #0 already exists). For whatever reason pwdHistory doesn't show up as modified field on the slave in the MOD request. But anyways. Something seems to be wrong, and it could a similar replication issue compared with pwdChangedTime I've lookup into the change history of the ppolicy.c file in the 2.5 and 2.6 branch but couldn't find a newer commit that would address this issue. Does anyone has encountered a similar issue? I've not played around with the 2.5 or 2.6 version, but looking at the code, I've either not seen a fix or the problem might still exist, hopefully I am wrong. Any suggestions? -- best regards Daniel Hoffend [1] https://github.com/openldap/openldap/commit/7a34f46d1cabe8e80937d5167b62152… Setup ===== Host Master - Debian 11 slapd 2.4.57+dfsg-3 - slapd master instance with cn=config - push replikation instance with simple config (syncrepl from localhost, write to backend ldap) Host Slave - Debian 11 slapd 2.4.57+dfsg-3 - Readonly slave On all 3 instances ppolicy is enabled otherwise the operational attributes would be not known/available and sync of locked accounts or per account selected password policy assignment wouldn't work. PUSH Replication Instance ========================= database ldap [...] overlay ppolicy ppolicy_default "cn=default,ou=policies,dc=example,dc=org" syncrepl rid=__RID__ provider=ldap://localhost:389/ binddn="cn=replication,ou=system,dc=example,dc=org" bindmethod=simple credentials="secret" searchbase="dc=example,dc=org" type=refreshAndPersist schemachecking=off retry="5 12 60 +" attrs="*,memberOf,pwdPolicySubentry,pwdChangedTime,pwdAccountLockedTime,pwdHistory,creatorsName,createTimestamp,modifiersName,modifyTimestamp" --- Nov 3 00:00:45 ldapmaster slapd[2308611]: syncrepl_message_to_entry: rid=016 DN: uid=user1,ou=accounts,dc=example,dc=org, UUID: db720f56-df0d-103c-8635-9543ccd6e97d Nov 3 00:00:45 ldapmaster slapd[2308611]: syncrepl_entry: rid=016 LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_ADD) csn=(none) tid a0a89700 Nov 3 00:00:45 ldapmaster slapd[2308611]: syncrepl_entry: rid=016 be_search (0) Nov 3 00:00:45 ldapmaster slapd[2308611]: syncrepl_entry: rid=016 uid=user1,ou=accounts,dc=example,dc=org Nov 3 00:00:45 ldapmaster slapd[2308611]: syncrepl_null_callback : error code 0x14 Nov 3 00:00:45 ldapmaster slapd[2308611]: syncrepl_entry: rid=016 be_modify uid=user1,ou=accounts,dc=example,dc=org (20) Nov 3 00:00:45 ldapmaster slapd[2308611]: syncrepl_entry: rid=016 be_modify failed (20) Nov 3 00:00:45 ldapmaster slapd[2308611]: do_syncrepl: rid=016 rc 20 retrying SLAVE LDAP Server ================= database mdb [...] overlay ppolicy ppolicy_default "cn=default,ou=policies,dc=example,dc=org" --- Nov 3 00:00:45 ldapslave slapd[2221506]: conn=176499 op=59513 SRCH base="uid=user1,ou=accounts,dc=example,dc=org" scope=0 deref=0 filter="(objectClass=*)" Nov 3 00:00:45 ldapslave slapd[2221506]: conn=176499 op=59513 SEARCH RESULT tag=101 err=0 nentries=1 text= Nov 3 00:00:45 ldapslave slapd[2221506]: conn=176500 op=59513 MOD dn="uid=user1,ou=accounts,dc=example,dc=org" Nov 3 00:00:45 ldapslave slapd[2221506]: conn=176500 op=59513 MOD attr=structuralObjectClass creatorsName createTimestamp userPassword pwdChangedTime memberOf entryCSN modifiersName modifyTimestamp Nov 3 00:00:45 ldapslave slapd[2221506]: conn=176500 op=59513 RESULT tag=103 err=20 text=modify/add: pwdHistory: value #0 already exists -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10004] New: Potential memory leak in libraries/librewrite/ldapmap.c
by openldap-its＠openldap.org 10 Jul '23

10 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=10004 Issue ID: 10004 Summary: Potential memory leak in libraries/librewrite/ldapmap.c Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: 1061499390(a)qq.com Target Milestone: --- Version: Github:master Potential memory leak in ldapmap.c line 310, 321.Calling ldap_initialize() without calling ldap_unbind_ext() to free the memory will cause a memory leak. There is no ldap_unbind_ext before calling ldap_initialize in line 376, and the ld will be allocated again. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10037] New: Instructions for building argon2.so are inaccurate
by openldap-its＠openldap.org 10 Jul '23

10 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=10037 Issue ID: 10037 Summary: Instructions for building argon2.so are inaccurate Product: OpenLDAP Version: 2.6.4 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: documentation Assignee: bugs(a)openldap.org Reporter: sclassen(a)lbl.gov Target Milestone: --- The instructions for building the argon2.so shared library are inaccurate. According to: servers/slapd/pwmods/README.argon2 Building -------- 1) Customize the OPENLDAP variable in Makefile to point to the OpenLDAP source root. For initial testing you might also want to edit DEFS to define SLAPD_ARGON2_DEBUG, which enables logging to stderr (don't leave this on in production, as it prints passwords in cleartext). 2) Run 'make' to produce argon2.so 3) Copy argon2.so somewhere permanent. 4) Edit your slapd.conf (eg. /etc/ldap/slapd.conf), and add: moduleload ...path/to/argon2.so 5) Restart slapd. When I run make from within servers/slapd/pwmods/ I get the following error: [user@machine openldap-2.6.4]# cd servers/slapd/pwmods/ [user@machine pwmods]# make make: *** No rule to make target 'dummyvalue', needed by 'all-common'. Stop. I’m not sure what “dummyvalue” is supposed to be so I commented out line 288 in servers/slapd/pwmods/Makefile # LIBRARY = dummyvalue And get this error: [user@ machine pwmods]# make /bin/sh ../../../libtool --tag=disable-static --mode=compile cc -g -O2 -I../../../include -I../../../include -I.. -I./.. -DSLAPD_IMPORT -c version.c libtool: compile: cc -g -O2 -I../../../include -I../../../include -I.. -I./.. -DSLAPD_IMPORT -c version.c -fPIC -DPIC -o .libs/version.o version.c:1:6: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘:’ token usage: mkversion [-c] [-s] [-p package] [-v version] application ^ make: *** [Makefile:310: version.lo] Error 1 -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10033] New: olcDbCacheSize in mdb configuration example
by openldap-its＠openldap.org 10 Jul '23

10 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=10033 Issue ID: 10033 Summary: olcDbCacheSize in mdb configuration example Product: OpenLDAP Version: 2.6.0 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: documentation Assignee: bugs(a)openldap.org Reporter: stefan(a)kania-online.de Target Milestone: --- on Page: https://openldap.org/doc/admin26/overlays.html#The%20Proxy%20Cache%20Engine There is an example for pcache-db configuration for a mdb-database: ----------- dn: olcDatabase={0}mdb,olcOverlay={0}pcache,olcDatabase={2}ldap,cn=config objectClass: olcMdbConfig objectClass: olcPcacheDatabase olcDatabase: {0}mdb olcDbDirectory: ./testrun/db.2.a olcDbCacheSize: 20 olcDbIndex: objectClass eq olcDbIndex: cn,sn,uid,mail pres,eq,sub ----------- But olcDbCacheSize is an bdb/hdb attribute. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9999] New: Potential memory leak in tests/progs/slapd-search.c
by openldap-its＠openldap.org 10 Jul '23

10 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=9999 Issue ID: 9999 Summary: Potential memory leak in tests/progs/slapd-search.c Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: test suite Assignee: bugs(a)openldap.org Reporter: 1061499390(a)qq.com Target Milestone: --- Version: Github:master Potential memory leak in slapd-search.c line 207.Calling ldap_search_ext_s() without calling ldap_msgfree() to free the memory will cause a memory leak. Doc says "Note that res parameter of ldap_search_ext_s() and ldap_search_s() should be freed with ldap_msgfree() regardless of return value of these functions." in https://www.openldap.org/software/man.cgi?query=ldap_search_ext_s&apropos=0… -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9996] New: Potential memory leak in libraries/librewrite/ldapmap.c
by openldap-its＠openldap.org 10 Jul '23

10 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=9996 Issue ID: 9996 Summary: Potential memory leak in libraries/librewrite/ldapmap.c Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: 1061499390(a)qq.com Target Milestone: --- Version: Github:master Potential memory leak in ldapmap.c line 359.Calling ldap_search_ext_s() without calling ldap_msgfree() to free the memory will cause a memory leak. Doc says "Note that res parameter of ldap_search_ext_s() and ldap_search_s() should be freed with ldap_msgfree() regardless of return value of these functions." in https://www.openldap.org/software/man.cgi?query=ldap_search_ext_s&apropos=0… -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10030] New: Add support for OpenSSL 3.0 to 2.5 stable release
by openldap-its＠openldap.org 10 Jul '23

10 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=10030 Issue ID: 10030 Summary: Add support for OpenSSL 3.0 to 2.5 stable release 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: quanah(a)openldap.org Target Milestone: --- As OpenSSL 1.1.1 is being sunset September 2023 we will need to add OpenSSL 3.0 support to the 2.5 series. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10041] New: unnecessary dynlist evaluation
by openldap-its＠openldap.org 10 Jul '23

10 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=10041 Issue ID: 10041 Summary: unnecessary dynlist evaluation Product: OpenLDAP Version: 2.5.14 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: david.coutadeur(a)gmail.com Target Milestone: --- Created attachment 963 --> https://bugs.openldap.org/attachment.cgi?id=963&action=edit openldap config + data for showing the dynlist usecase Evaluation of member of dynamic groups by dynlist can be slow. However, in some context, the evaluation is not necessary, especially when searching object that are not dynamic groups. You can find attached a configuration and data file showing the use case: - 10000 users - 100 static groups - 5000 dynamic groups, with a filter (&(uid=user*)(objectClass=person), grabbing all users Example of "normal" slow search ~ 115s: ldapsearch -x -H 'ldap://localhost:389/' -D 'uid=admin,ou=people,dc=my-organization,dc=com' -w 'secret' -b 'ou=groups,dc=my-organization,dc=com' '(member=uid=user1,ou=people,dc=my-organization,dc=com)' Example of abnormal slow search ~ 115s: ldapsearch -x -H 'ldap://localhost:389/' -D 'uid=admin,ou=people,dc=my-organization,dc=com' -w 'secret' -b 'ou=groups,dc=my-organization,dc=com' '(&(objectClass=groupOfNames)(member=uid=user1,ou=people,dc=my-organization,dc=com))' Here, the filter about the objectClass could be evaluated first to avoid unnecessary search in dynamic groups. Example of rapid search with DSA IT ~ 1ms: ldapsearch -x -H 'ldap://localhost:389/' -D 'uid=admin,ou=people,dc=my-organization,dc=com' -w 'secret' -b 'ou=groups,dc=my-organization,dc=com' '(&(objectClass=groupOfNames)(member=uid=user1,ou=people,dc=my-organization,dc=com))' -M -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10000] New: Potential memory leak in tests/progs/slapd-watcher.c
by openldap-its＠openldap.org 10 Jul '23

10 Jul '23

https://bugs.openldap.org/show_bug.cgi?id=10000 Issue ID: 10000 Summary: Potential memory leak in tests/progs/slapd-watcher.c Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: test suite Assignee: bugs(a)openldap.org Reporter: 1061499390(a)qq.com Target Milestone: --- Version: Github:master Potential memory leak in slapd-watcher.c line 517.Calling ldap_search_ext_s() without calling ldap_msgfree() to free the memory will cause a memory leak. Doc says "Note that res parameter of ldap_search_ext_s() and ldap_search_s() should be freed with ldap_msgfree() regardless of return value of these functions." in https://www.openldap.org/software/man.cgi?query=ldap_search_ext_s&apropos=0… -- You are receiving this mail because: You are on the CC list for the issue.

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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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openldap-bugs April 2023