openldap-bugs March 2010

openldap-bugs@openldap.org

31 participants
72 discussions

Re: (ITS#6486) OpenLDAP Admin Guide Backends Documentation
by ghenry＠OpenLDAP.org 06 Mar '10

06 Mar '10

Thanks Ryan. I'll make sure this gets updated when I work through updating everything for cn=config syntax. Gavin. -- Kind Regards, Gavin Henry. OpenLDAP Engineering Team. E ghenry(a)OpenLDAP.org Community developed LDAP software. http://www.openldap.org/project/

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(ITS#6487) Nssov pam_authz authorizedUserService
by crispy＠cluenet.org 05 Mar '10

05 Mar '10

Full_Name: Chris Breneman Version: 2.4.21 OS: Debian Lenny URL: http://paste.cluenet.org/pastebin.php?dl=2648 Submission from: (NULL) (98.212.227.43) My organization needs the capability of per-user (instead of per-group) access control with nssov. Using the method of modifying slapd ACLs to grant or revoke compare privileges on the authorizedService attribute of the host object is not scalable with large numbers of users, each of which have individual access. This patch adds an attribute "authorizedUserService" for use in a host entry. The attribute is in the form of "UID:SERVICE". If an attribute value for the user and service exists, access is granted. Otherwise access is denied. Wildcards in the form of "UID:*", "*:UID", and "*:*" are also supported. This patch also fixes a minor bug in the pam_authz function. Currently, one of the values read from NSCLD is used as a string in a Debug statement without initializing a NULL terminator. The patch extends the lengths of each buffer by 1 and initializes them to 0 so each buffer is always null-terminated and can be used as a string. The patch applies to the latest CVS HEAD as of this report, since several changes have been made in that region of code since 2.4.21. The patch is at http://paste.cluenet.org/pastebin.php?dl=2648 or http://paste.cluenet.org/2648

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Re: (ITS#6485) nssov pam_authz fixes
by hyc＠symas.com 04 Mar '10

04 Mar '10

crispy(a)cluenet.org wrote: > Full_Name: Chris Breneman > Version: 2.4.21 > OS: Debian Lenny > URL: > Submission from: (NULL) (98.212.227.43) > > > In pam_authz(), in pam.c, in nssov, there are two problems: > > 1. Values in the service buffer are overwritten, and values in several other > buffers are never stored, preventing authorizedService checking from working. > 2. pam_authz() fails if nssov is not first used for authentication. Thanks for reporting these, fixes are in HEAD. -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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Re: (ITS#6433) patch for the sha2 module: hash methods for passwords generation
by hyc＠symas.com 04 Mar '10

04 Mar '10

cdelfosse(a)mandriva.com wrote: > Full_Name: Cédric Delfosse > Version: HEAD > OS: Mandriva Linux > URL: ftp://ftp.openldap.org/incoming/cedric-delfosse-091221.patch > Submission from: (NULL) (62.212.120.90) > > > Hello, > > this patch allows to use the {SHA256}, {SHA384} and {SHA512} password schemes > (provided by the sha2 module) with LDAP Password Modify Extended Operations. > This patch contains the required hash methods. > > This patch file is derived from OpenLDAP Software. All of the modifications to > OpenLDAP Software represented in the following patch(es) were developed by > Mandriva. Mandriva has not assigned rights and/or interest in this work to any > party. I, Cédric Delfosse am authorized by Mandriva, my employer, to release > this work under the following terms. > > Mandriva 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. > > Regards, > > Cédric > Thanks, nice work. Committed in HEAD. -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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(ITS#6486) OpenLDAP Admin Guide Backends Documentation
by ryans＠aweber.com 04 Mar '10

04 Mar '10

Full_Name: Ryan Steele Version: 2.4.18 OS: Ubuntu Server URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (207.106.239.81) The Admin Guide section on backends is inconsistent in terms of specifying the moduleload statement, and whether or not it is required for any arbitrary backend. For example, the documentation on back-ldif explicitly states that it is not needed: >You'll notice that when compared to examples below, there is no: > > moduleload back_ldif.la > >directive. This is because back_ldif is always built in by default as it is used by >slapd-config(5), which again is built in by default. This is in contrast to the monitor backend configuration section where it is noted as being required: >You can however set a rootdn and rootpw. The following is all that is needed to >instantiate a monitor backend: > > include ./schema/core.schema > > modulepath /usr/local/libexec/openldap > moduleload back_monitor.la > > database monitor > rootdn "cn=monitoring,cn=Monitor" > rootpw monitoring Or, in the back-ldap configuration section, where mention is omitted entirely: > database ldap > suffix "dc=suretecsystems,dc=com" > rootdn "cn=slapd-ldap" > uri ldap://localhost/ ldap://remotehost ldap://remotehost2 I should note that this ITS is not referring sections in which the configuration section for a backend is missing entirely (such as back-meta), because IMHO the lack of information there precludes it from being subject to the aforementioned ambiguity. I made sure to check with #openldap on Freenode (2010-03-03, 14:05 EST) before submitting this ITS, and have made sure to obtain Howard's blessing: <hyc> go ahead and submit an ITS. I don't think you need to attach a patch. <hyc> probably we'll just add a bluurb at the top "if your installation uses dynamic modules, you may need to add the relevant moduleload directives to the following examples" <hyc> and leave it at that.

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(ITS#6485) nssov pam_authz fixes
by crispy＠cluenet.org 03 Mar '10

03 Mar '10

Full_Name: Chris Breneman Version: 2.4.21 OS: Debian Lenny URL: Submission from: (NULL) (98.212.227.43) In pam_authz(), in pam.c, in nssov, there are two problems: 1. Values in the service buffer are overwritten, and values in several other buffers are never stored, preventing authorizedService checking from working. 2. pam_authz() fails if nssov is not first used for authentication.

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(ITS#6484) slapd 2.4.21 + pcache + rwm coredump
by mhardin＠symas.com 03 Mar '10

03 Mar '10

Full_Name: Matt Hardin Version: 2.4.21 OS: Linux URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (170.215.92.245) A naming context that uses back-ldap, slapo-rwm, and slapo-pcache dumps core when asked to perform an operation. Configuration snippets: database ldap suffix "dc=ad,dc=example,dc=com" subordinate rootdn "dc=ad,dc=example,dc=com" uri "ldaps://ldap01.example.com ldaps://ldap02.example.com" norefs yes chase-referrals no conn-ttl 300 network-timeout 10 use-temporary-conn yes # Identity assertion: connections authenticated as either of the two identities # below will connect to AD as the proxy user. Connections authenticated as # anything else (i.e., AD users) use those credentials for authentication. idassert-bind bindmethod=simple binddn="cn=cnsproxy,dc=example,dc=com" credentials=xxxxxx mode=legacy flags=override idassert-authzFrom "dn.regex:cn=proxy,dc=example,dc=com" # It is necessary to map a number of objectclass and attribute names to # various other names that are supported in RFC2307. We also take this # opportunity to 'lose' certain other attributes that have no place in # UNIX. overlay rwm rwm-normalize-mapped-attrs yes rwm-suffixmassage "dc=ad,dc=example,dc=com" "dc=example,dc=com" rwm-map objectClass posixAccount user rwm-map attribute uid samAccountName rwm-map attribute "" gecos [lots of rwm-map statements removed] # Caching setup overlay pcache proxycache hdb 100000 2 10000 50000 proxycachequeries 20000 proxyattrset 0 uid userPassword uidNumber gidNumber cn homeDirectory loginShell gecos description objectClass memberUid member proxyattrset 1 * # proxytemplate (&(objectClass=)(uid=)) 0 3600 300 proxytemplate (&(objectClass=)(uid=)) 1 3600 300 proxytemplate (&(objectClass=)(uidNumber=)) 0 3600 300 proxytemplate (&(objectClass=)(member=)) 0 3600 300 proxytemplate (&(objectClass=)(|(memberUid=)(member=))) 0 3600 300 proxytemplate (uid=) 0 3600 300 proxytemplate (&(objectClass=)(cn=)) 0 3600 300 proxytemplate (&(objectClass=)(gidNumber=)) 0 3600 300 proxytemplate (objectClass=*) 0 3600 300 # directory /var/symas/openldap-data/example-pcache cachesize 10000 idlcachesize 10000 checkpoint 512 600 sizelimit unlimited index objectClass eq index cn,sn,uid eq index uidNumber eq index gidNumber eq index memberUid eq index member eq index queryid eq dbconfig set_cachesize 0 536870912 0 dbconfig set_flags DB_LOG_AUTOREMOVE dbconfig set_lg_max 10485760 dbconfig set_lg_bsize 2097152 Backtrace is as follows: (gdb) thr apply all bt Thread 5 (process 19756): #0 0x0083d7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2 #1 0x00abc297 in pthread_join () from /lib/tls/libpthread.so.0 #2 0x00608524 in ldap_pvt_thread_join (thread=4294967292, thread_return=0xfffffffc) at /home/build/sol-2.4.21.0/sol24x/ldap24/libraries/libldap_r/thr_posix.c:197 #3 0x0806f48a in slapd_daemon () at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/daemon.c:2840 #4 0x0805896d in main (argc=7, argv=0xbfe4d694) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/main.c:961 Thread 4 (process 19757): #0 0x0083d7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2 #1 0x0070a1ce in epoll_wait () from /lib/tls/libc.so.6 #2 0x0806e505 in slapd_daemon_task (ptr=0x0) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/daemon.c:2465 #3 0x00abb3cc in start_thread () from /lib/tls/libpthread.so.0 #4 0x00709b4e in clone () from /lib/tls/libc.so.6 Thread 3 (process 19759): #0 0x0083d7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2 #1 0x00abdcf6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/libpthread.so.0 #2 0x00608664 in ldap_pvt_thread_cond_wait (cond=0xfffffffc, mutex=0xfffffffc) at /home/build/sol-2.4.21.0/sol24x/ldap24/libraries/libldap_r/thr_posix.c:277 #3 0x00607822 in ldap_int_thread_pool_wrapper (xpool=0x82c56f0) at /home/build/sol-2.4.21.0/sol24x/ldap24/libraries/libldap_r/tpool.c:672 #4 0x00abb3cc in start_thread () from /lib/tls/libpthread.so.0 ---Type <return> to continue, or q <return> to quit--- #5 0x00709b4e in clone () from /lib/tls/libc.so.6 Thread 2 (process 19760): #0 0x0083d7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2 #1 0x00abdcf6 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/libpthread.so.0 #2 0x00608664 in ldap_pvt_thread_cond_wait (cond=0xfffffffc, mutex=0xfffffffc) at /home/build/sol-2.4.21.0/sol24x/ldap24/libraries/libldap_r/thr_posix.c:277 #3 0x00607822 in ldap_int_thread_pool_wrapper (xpool=0x82c56f0) at /home/build/sol-2.4.21.0/sol24x/ldap24/libraries/libldap_r/tpool.c:672 #4 0x00abb3cc in start_thread () from /lib/tls/libpthread.so.0 #5 0x00709b4e in clone () from /lib/tls/libc.so.6 Thread 1 (process 19758): #0 0x0083d7a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2 #1 0x00665825 in raise () from /lib/tls/libc.so.6 #2 0x00667289 in abort () from /lib/tls/libc.so.6 #3 0x0065eda1 in __assert_fail () from /lib/tls/libc.so.6 #4 0x0807bc34 in entry_clean (e=0x835ccdc) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/entry.c:483 #5 0x0807bc52 in entry_free (e=0x835ccdc) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/entry.c:514 #6 0x080da90e in overlay_entry_release_ov (op=0x838b5a0, e=0x835ccdc, rw=0, on=0x82fcb50) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/backover.c:439 #7 0x0093aa55 in rwm_send_entry (op=0x838b5a0, rs=0x3a1a100) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/overlays/rwm.c:1508 #8 0x0093b129 in rwm_response (op=0x838b5a0, rs=0x6) ---Type <return> to continue, or q <return> to quit--- at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/overlays/rwm.c:1700 #9 0x080da44a in over_back_response (op=0x838b5a0, rs=0x3a1a100) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/backover.c:237 #10 0x08081be0 in slap_response_play (op=0x838b5a0, rs=0x3a1a100) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/result.c:358 #11 0x0808439b in slap_send_search_entry (op=0x838b5a0, rs=0x3a1a100) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/result.c:843 #12 0x00bd8005 in hdb_search (op=0x838b5a0, rs=0x3a1a100) at search.c:961 #13 0x00a7d495 in pcache_op_search (op=0x838b5a0, rs=0x3a1a100) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/overlays/pcache.c:3029 #14 0x080dad59 in overlay_op_walk (op=0x838b5a0, rs=0x3a1a100, which=op_search, oi=0x82fca50, on=0x8303408) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/backover.c:659 #15 0x080daebc in over_op_func (op=0x838b5a0, rs=0x3a1a100, which=op_search) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/backover.c:721 #16 0x080d8f18 in glue_op_search (op=0x838b5a0, rs=0x3a1a100) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/backglue.c:457 #17 0x080dad59 in overlay_op_walk (op=0x838b5a0, rs=0x3a1a100, which=op_search, oi=0x8302778, on=0x8302878) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/backover.c:659 #18 0x080daebc in over_op_func (op=0x838b5a0, rs=0x3a1a100, which=op_search) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/backover.c:721 #19 0x08074b36 in fe_op_search (op=0x838b5a0, rs=0x3a1a100) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/search.c:366 #20 0x08074041 in do_search (op=0x838b5a0, rs=0x3a1a100) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/search.c:217 #21 0x08072205 in connection_operation (ctx=0x3a1a210, arg_v=0x838b5a0) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/connection.c:1109 ---Type <return> to continue, or q <return> to quit--- #22 0x08072b54 in connection_read_thread (ctx=0x3a1a210, argv=0x18) at /home/build/sol-2.4.21.0/sol24x/ldap24/servers/slapd/connection.c:1245 #23 0x006077c6 in ldap_int_thread_pool_wrapper (xpool=0x82c56f0) at /home/build/sol-2.4.21.0/sol24x/ldap24/libraries/libldap_r/tpool.c:685 #24 0x00abb3cc in start_thread () from /lib/tls/libpthread.so.0 #25 0x00709b4e in clone () from /lib/tls/libc.so.6 (gdb) q Commentary from debugging session: the entry in question is owned by pcache's cache DB and the overlay_entry_release() function didn't fall into the right release hook because the pcache overlay didn't provide one so this has to be fixed by adding a release hook to pcache not a big deal. so the fault isn't in rwm this time, it's calling the right API

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Re: (ITS#6055) Re: Samba4 need 'name' implementation like AD (RDN-Name)
by abartlet＠samba.org 02 Mar '10

02 Mar '10

--=-wu98lDL/cs9xvAtVkpXf Content-Type: multipart/mixed; boundary="=-bGZqaJas0lpiam3pf2jA" --=-bGZqaJas0lpiam3pf2jA Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, 2010-03-02 at 15:30 +1100, Andrew Bartlett wrote: > On Mon, 2009-08-03 at 20:44 +0200, masarati(a)aero.polimi.it wrote: > > [Resending because I forgot the ITS number in the subject] > >=20 > > I have a simple prototype that on add/modrdn populates/maintains an > > attribute (rdnValue) with the distinguished values of the naming > > attributes of the RDN. While doing this, it also checks for uniqueness= of > > the rdnValue value within siblings. > >=20 > > You can find it here > > <ftp://ftp.openldap.org/incoming/pierangelo-masarati-2009-08-03-rdnval.= 2.c> > >=20 > > Please test and comment. I hope it does what intended. >=20 > I'm starting to look at this now. I'm sorry so many months have past > since you posted it. I've now added it into Samba's provision, and using the diff I attach, against current 'master', I get the attached error. It seems to be unable to add the base DN. (The very first entry in the database). Andrew Bartlett --=20 Andrew Bartlett http://samba.org/~abartlet/ Authentication Developer, Samba Team http://samba.org Samba Developer, Cisco Inc. --=-bGZqaJas0lpiam3pf2jA Content-Disposition: attachment; filename="rdnval-use-in-samba.diff" Content-Transfer-Encoding: base64 Content-Type: text/x-patch; name="rdnval-use-in-samba.diff"; charset="UTF-8" ZGlmZiAtLWdpdCBhL3NvdXJjZTQvZHNkYi9zYW1kYi9sZGJfbW9kdWxlcy9zYW1iYV9kc2RiLmMg Yi9zb3VyY2U0L2RzZGIvc2FtZGIvbGRiX21vZHVsZXMvc2FtYmFfZHNkYi5jDQppbmRleCBjOTI5 ZDY1Li5jOGQ1YjkzIDEwMDY0NA0KLS0tIGEvc291cmNlNC9kc2RiL3NhbWRiL2xkYl9tb2R1bGVz L3NhbWJhX2RzZGIuYw0KKysrIGIvc291cmNlNC9kc2RiL3NhbWRiL2xkYl9tb2R1bGVzL3NhbWJh X2RzZGIuYw0KQEAgLTE3NSw3ICsxNzUsNiBAQCBzdGF0aWMgaW50IHNhbWJhX2RzZGJfaW5pdChz dHJ1Y3QgbGRiX21vZHVsZSAqbW9kdWxlKQ0KIAkJCQkJICAgICAiYXNxIiwNCiAJCQkJCSAgICAg ImV4dGVuZGVkX2RuX3N0b3JlIiwNCiAJCQkJCSAgICAgImV4dGVuZGVkX2RuX2luIiwNCi0JCQkJ CSAgICAgInJkbl9uYW1lIiwNCiAJCQkJCSAgICAgIm9iamVjdGNsYXNzIiwNCiAJCQkJCSAgICAg 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Re: (ITS#6055) Re: Samba4 need 'name' implementation like AD (RDN-Name)
by abartlet＠samba.org 02 Mar '10

02 Mar '10

--=-3cgveKzr2Byp6ib+VYg9 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, 2009-08-03 at 20:44 +0200, masarati(a)aero.polimi.it wrote: > [Resending because I forgot the ITS number in the subject] >=20 > I have a simple prototype that on add/modrdn populates/maintains an > attribute (rdnValue) with the distinguished values of the naming > attributes of the RDN. While doing this, it also checks for uniqueness o= f > the rdnValue value within siblings. >=20 > You can find it here > <ftp://ftp.openldap.org/incoming/pierangelo-masarati-2009-08-03-rdnval.2.= c> >=20 > Please test and comment. I hope it does what intended. I'm starting to look at this now. I'm sorry so many months have past since you posted it. Andrew Bartlett --=20 Andrew Bartlett http://samba.org/~abartlet/ Authentication Developer, Samba Team http://samba.org Samba Developer, Cisco Inc. --=-3cgveKzr2Byp6ib+VYg9 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iD8DBQBLjJRvz4A8Wyi0NrsRAqh2AJ4uvpxIGj0PTacpWVLVO18BRrWqaQCeOqhh VdZtFVltm6uv6qY3Lw7ULpk= =zoZi -----END PGP SIGNATURE----- --=-3cgveKzr2Byp6ib+VYg9--

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Status of ITS 5941?
by Lars Kellogg-Stedman 02 Mar '10

02 Mar '10

Hello all, I think I've just run into ITS 5941 (http://www.openldap.org/its/index.cgi/Software%20Bugs?id=5941). I'm trying to set up a proxy using the "translucent" overlay in front of an Active Directory server; I'd like to rewrite some attributes (e.g., sAMAccountName -> uid) as part of this process. The config looks like this: moduleload translucent moduleload rwm database ldif suffix "dc=dept,dc=example,dc=com" directory "/var/lib/ldap/ad-proxy" rootdn "cn=admin,dc=dept,dc=example,dc=com" rootpw "password" overlay translucent uri ldap://127.0.0.1/ acl-bind bindmethod=simple binddn=cn=binduser,ou=people,cn=admin,dc=dept,dc=example,dc=com credentials=password overlay rwm rwm-map attribute uid sAMAccountName With this configuration in place, I can complete one search, after which slapd dies with: Segmentation fault If I explicitly request the rewritten attribute: $ ldapsearch ... cn=lars uid Slapd dies with a backtrace: *** glibc detected *** slapd: double free or corruption (!prev): 0xb6602320 *** ======= Backtrace: ========= /lib/libc.so.6(+0x1b7751)[0x858751] slapd(ber_memfree_x+0x50)[0x610c40] slapd(slap_sl_free+0x70)[0x527240] slapd(do_search+0x17f)[0x4c819f] slapd(+0x3c15e)[0x4c515e] slapd(+0x15921c)[0x5e221c] /lib/libpthread.so.0(+0x2f8ab5)[0x334ab5] /lib/libc.so.6(clone+0x5e)[0x8c4dce] Does this look like the same problem? Is there a fix available? If not, is there a workaround that doesn't involve running a second instance of slapd as a rewriting proxy?

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openldap-bugs March 2010