openldap-bugs September 2021

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[Issue 9650] New: lloadd segfault on startup on systems using musl
by openldap-its＠openldap.org 25 Oct '21

25 Oct '21

https://bugs.openldap.org/show_bug.cgi?id=9650 Issue ID: 9650 Summary: lloadd segfault on startup on systems using musl Product: OpenLDAP Version: unspecified Hardware: All OS: Linux Status: UNCONFIRMED Severity: normal Priority: --- Component: lloadd Assignee: bugs(a)openldap.org Reporter: git(a)freundtech.com Target Milestone: --- I came across this problem while testing a fix for #9648. It seems to be unrelated, so I'm creating a separate issue. After compiling OpenLDAP 2.5.7 with the fix from #9648 and ----enable-balancer=yes on an Alpine Linux system lloadd segfaults on startup. The backtrace from a debug build is #0 0x00007ffff7fba852 in tss_get () from /lib/ld-musl-x86_64.so.1 #1 0x00005555555a844d in ldap_pvt_thread_key_getdata (key=0, data=0x7fffffffe820) at thr_posix.c:360 #2 0x00005555555a7f9f in ldap_pvt_thread_pool_context () at tpool.c:1442 #3 0x0000555555583122 in slap_sl_context (ptr=0x7ffff7f606e0) at sl_malloc.c:673 #4 0x0000555555580709 in ch_realloc (block=0x7ffff7f606e0, size=24) at ch_malloc.c:81 #5 0x0000555555572303 in lload_open_listener (url=0x7ffff7c43c30 "ldap:///", lud=0x7ffff7f60550, listeners=0x7fffffffeb1c, cur=0x7fffffffeb20) at daemon.c:465 #6 0x00005555555733bf in lloadd_listeners_init (urls=0x5555555d1958 "ldap:///") at daemon.c:749 #7 0x000055555557f7a9 in main (argc=1, argv=0x7fffffffed08) at main.c:632 The problem seems to be that ldap_pvt_thread_pool_context in tpool.c is called before ldap_int_thread_pool_startup in tpool.c is called. ldap_int_thread_pool_startup calls ldap_pvt_thread_key_create, which on posix calls pthread_key_create. ldap_pvt_thread_pool_context calls ldap_pvt_thread_key_getdata, which on posix calls pthread_getspecific. If ldap_int_thread_pool_startup wasn't called pthread_getspecific gets passed an uninitialized key, which is always 0 (because the variable is static). According to man 3 pthread_getspecific "The effect of calling pthread_getspecific() or pthread_setspecific() with a key value not obtained from pthread_key_create() or after key has been deleted with pthread_key_delete() is undefined." This seems to work fine on glibc, but crash on musl. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9599] New: Additional balancing strategies for lloadd
by openldap-its＠openldap.org 25 Oct '21

25 Oct '21

https://bugs.openldap.org/show_bug.cgi?id=9599 Issue ID: 9599 Summary: Additional balancing strategies for lloadd Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: lloadd Assignee: bugs(a)openldap.org Reporter: ondra(a)mistotebe.net Target Milestone: --- At the moment, lloadd picks a backend on a round-robin basis, taking the first one that can deal with the request. This has several disadvantages: - there is no way to implement a failover set up where certain (e.g. local) servers should be contacted as a priority - all balancing is implicit on the limits imposed on servers - a connection/server is a candidate until we've reached those limits Allowing a priority and/or a different strategy to be set should address these. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9598] New: Restricted operation routing in lloadd
by openldap-its＠openldap.org 25 Oct '21

25 Oct '21

https://bugs.openldap.org/show_bug.cgi?id=9598 Issue ID: 9598 Summary: Restricted operation routing in lloadd Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: lloadd Assignee: bugs(a)openldap.org Reporter: ondra(a)mistotebe.net Target Milestone: --- Lloadd is not supposed to understand the LDAP protocol and is happy to route operations to whichever connection is available, but this can backfire in certain ways: - there are controls and extended operations that establish an shared context on the connection (paged results, TXN, ...) - it might take a measurable amount of time before a write operation is propagated to other servers There should be a way to force some of these to a chosen backend/upstream connection temporarily or even permanently based on the OID of the extop/control in question. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9597] New: Send a Notice of Disconnection to clients
by openldap-its＠openldap.org 25 Oct '21

25 Oct '21

https://bugs.openldap.org/show_bug.cgi?id=9597 Issue ID: 9597 Summary: Send a Notice of Disconnection to clients Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: lloadd Assignee: bugs(a)openldap.org Reporter: ondra(a)mistotebe.net Target Milestone: --- When closing client connections, lloadd should try and send a NoD response first. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9633] New: Intermittent test030 failure caused by referral chasing
by openldap-its＠openldap.org 25 Oct '21

25 Oct '21

https://bugs.openldap.org/show_bug.cgi?id=9633 Issue ID: 9633 Summary: Intermittent test030 failure caused by referral chasing Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: hyc(a)openldap.org Target Milestone: --- Not 100% reproducible but occurs frequently using ldif or wt backends. The test hits an assert failure in libldap. >>>>> Starting test030-relay for wt... running defines.sh Testing virtual naming context mapping with relay ldap meta backend(s)... Using relay backend... Starting slapd on TCP/IP port 9051... Using ldapsearch to check that slapd is running... Using ldapadd to populate the database... Searching base="dc=example,dc=com"... Searching base="o=Example,c=US"... Searching base="o=Esempio,c=IT"... Searching base="o=Beispiel,c=DE"... Modifying database "o=Beispiel,c=DE"... Modifying database "o=Example,c=US"... Searching base="o=Example,c=US"... Searching base="o=Esempio,c=IT"... Searching filter="(objectClass=referral)" attrs="'*' ref" base="dc=example,dc=com"... base="o=Example,c=US"... base="o=Esempio,c=IT"... Searching filter="(seeAlso=cn=all staff,ou=Groups,o=Example,c=US)" attrs="seeAlso" base="o=Example,c=US"... Searching filter="(uid=example)" attrs="uid" base="o=Example,c=US"... Searching filter="(member=cn=Another Added Group,ou=Groups,o=Example,c=US)" attrs="member" base="o=Example,c=US"... Filtering ldapsearch results... Filtering original ldif used to create database... Comparing filter output... Changing password to database "o=Example,c=US"... Binding with newly changed password to database "o=Beispiel,c=DE"... Comparing to database "o=Esempio,c=IT"... >>>>> waiting for things to exit Using ldap backend... Starting slapd on TCP/IP port 9051... Using ldapsearch to check that slapd is running... Using ldapadd to populate the database... Searching base="dc=example,dc=com"... Searching base="o=Example,c=US"... Searching base="o=Esempio,c=IT"... Searching base="o=Beispiel,c=DE"... Modifying database "o=Beispiel,c=DE"... Modifying database "o=Example,c=US"... Searching base="o=Example,c=US"... Search failed (255)! ../../head/tests/scripts/test030-relay: 240: kill: No such process >>>>> Failed test030-relay for wt after 3 seconds (exit 255) make[1]: Leaving directory '/home/hyc/OD/hobj/tests' backtrace: gdb) bt #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:49 #1 0x00007fb9119bd864 in __GI_abort () at abort.c:79 #2 0x00007fb9119bd749 in __assert_fail_base ( fmt=0x7fb911b46f78 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x7fb9123efc93 "lr->lr_refcnt == 0", file=0x7fb9123ef5c0 "../../../head/libraries/libldap/request.c", line=1671, function=<optimized out>) at assert.c:92 #3 0x00007fb9119cf3d6 in __GI___assert_fail ( assertion=0x7fb9123efc93 "lr->lr_refcnt == 0", file=0x7fb9123ef5c0 "../../../head/libraries/libldap/request.c", line=1671, function=0x7fb9123efe70 <__PRETTY_FUNCTION__.1> "ldap_find_request_by_msgid") at assert.c:101 #4 0x00007fb9121d671c in ldap_find_request_by_msgid (ld=0x7fb8fc124d70, msgid=3) at ../../../head/libraries/libldap/request.c:1671 #5 0x00007fb9121b882d in try_read1msg (ld=0x7fb8fc124d70, msgid=5, all=1, lc=0x7fb8fc128180, result=0x7fb90511bf48) at ../../../head/libraries/libldap/result.c:575 #6 0x00007fb9121b8135 in wait4msg (ld=0x7fb8fc124d70, msgid=5, all=1, timeout=0x7fb90511bf90, result=0x7fb90511bf48) at ../../../head/libraries/libldap/result.c:369 #7 0x00007fb9121b77cb in ldap_result (ld=0x7fb8fc124d70, msgid=5, all=1, timeout=0x7fb90511bf90, result=0x7fb90511bf48) --Type <RET> for more, q to quit, c to continue without paging-- at ../../../head/libraries/libldap/result.c:120 #8 0x00007fb9121d3b8c in ldap_new_connection (ld=0x7fb8fc124d70, srvlist=0x7fb90511c160, use_ldsb=0, connect=1, bind=0x7fb90511c1a0, m_req=1, m_res=1) at ../../../head/libraries/libldap/request.c:627 #9 0x00007fb9121d2ba0 in ldap_send_server_request (ld=0x7fb8fc124d70, ber=0x7fb8f0137ea0, msgid=4, parentreq=0x7fb8f0000fd0, srvlist=0x7fb90511c160, lc=0x0, bind=0x7fb90511c1a0, m_noconn=0, m_res=1) at ../../../head/libraries/libldap/request.c:253 #10 0x00007fb9121d56e5 in ldap_chase_v3referrals (ld=0x7fb8fc124d70, lr=0x7fb8f0000fd0, refs=0x0, sref=1, errstrp=0x7fb8f0001000, hadrefp=0x7fb90511c208) at ../../../head/libraries/libldap/request.c:1283 #11 0x00007fb9121b8b40 in try_read1msg (ld=0x7fb8fc124d70, msgid=3, all=0, lc=0x7fb8fc128180, result=0x7fb90511c4e8) at ../../../head/libraries/libldap/result.c:680 #12 0x00007fb9121b8135 in wait4msg (ld=0x7fb8fc124d70, msgid=3, all=0, timeout=0x7fb90511c520, result=0x7fb90511c4e8) at ../../../head/libraries/libldap/result.c:369 #13 0x00007fb9121b77cb in ldap_result (ld=0x7fb8fc124d70, msgid=3, all=0, timeout=0x7fb90511c520, result=0x7fb90511c4e8) at ../../../head/libraries/libldap/result.c:120 #14 0x000055a093724e35 in ldap_back_search (op=0x7fb8f0000be0, rs=0x7fb90511d990) at ../../../../head/servers/slapd/back-ldap/search.c:317 #15 0x000055a0936ff157 in overlay_op_walk (op=0x7fb8f0000be0, --Type <RET> for more, q to quit, c to continue without paging-- rs=0x7fb90511d990, which=op_search, oi=0x55a0943711d0, on=0x0) at ../../../head/servers/slapd/backover.c:706 #16 0x000055a0936ff417 in over_op_func (op=0x7fb8f0000be0, rs=0x7fb90511d990, which=op_search) at ../../../head/servers/slapd/backover.c:766 #17 0x000055a0936ff59b in over_op_search (op=0x7fb8f0000be0, rs=0x7fb90511d990) at ../../../head/servers/slapd/backover.c:796 #18 0x000055a09365d201 in fe_op_search (op=0x7fb8f0000be0, rs=0x7fb90511d990) at ../../../head/servers/slapd/search.c:426 #19 0x000055a09365c9fa in do_search (op=0x7fb8f0000be0, rs=0x7fb90511d990) at ../../../head/servers/slapd/search.c:267 #20 0x000055a093658e0c in connection_operation (ctx=0x7fb90511daf0, arg_v=0x7fb8f0000be0) at ../../../head/servers/slapd/connection.c:1113 #21 0x000055a09365956b in connection_read_thread (ctx=0x7fb90511daf0, argv=0x10) at ../../../head/servers/slapd/connection.c:1265 #22 0x00007fb9121feea3 in ldap_int_thread_pool_wrapper (xpool=0x55a094357ac0) at ../../../head/libraries/libldap/tpool.c:1053 #23 0x00007fb911b8c450 in start_thread (arg=0x7fb90511e640) at pthread_create.c:481 #24 0x00007fb911aaed53 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 (gdb) frame 11 #11 0x00007fb9121b8b40 in try_read1msg (ld=0x7fb8fc124d70, msgid=3, all=0, lc=0x7fb8fc128180, result=0x7fb90511c4e8) at ../../../head/libraries/libldap/result.c:680 680 refer_cnt = ldap_chase_v3referrals( ld, lr, refs, (gdb) l 675 if ( ber_scanf( &tmpber, "{v}", &refs ) == LBER_ERROR ) { 676 rc = LDAP_DECODING_ERROR; 677 678 } else { 679 /* Note: refs array is freed by ldap_chase_v3referrals */ 680 refer_cnt = ldap_chase_v3referrals( ld, lr, refs, 681 1, &lr->lr_res_error, &hadref ); 682 if ( refer_cnt > 0 ) { 683 /* successfully chased reference */ 684 /* If haven't got end search, set chasing referrals */ (gdb) p *lr $7 = {lr_msgid = 3, lr_status = 1, lr_refcnt = 1, lr_outrefcnt = 1, lr_abandoned = 0, lr_origid = 3, lr_parentcnt = 0, lr_res_msgtype = 115, lr_res_errno = 0, lr_res_error = 0x0, lr_res_matched = 0x0, lr_ber = 0x7fb8f0139eb0, lr_conn = 0x7fb8fc128180, lr_dn = {bv_len = 17, bv_val = 0x7fb8f0128b79 "dc=example,dc=com\n\001\002\n\001"}, lr_parent = 0x0, lr_child = 0x0, lr_refnext = 0x0, lr_prev = 0x0, lr_next = 0x0} (gdb) The problem appears to be due to recursion in try_read1msg() when chasing a referral. In this case it's processing msgid 3 and then while looking for response to msgid 5 it sees another response to msgid 3. It looks up the corresponding request and sees it already has a non-zero lr_refcnt and assert fails there. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9653] New: typo in access-control.sdf
by openldap-its＠openldap.org 25 Oct '21

25 Oct '21

https://bugs.openldap.org/show_bug.cgi?id=9653 Issue ID: 9653 Summary: typo in access-control.sdf Product: OpenLDAP Version: 2.5.4 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: documentation Assignee: bugs(a)openldap.org Reporter: dpa-openldap(a)aegee.org Target Milestone: --- https://git.openldap.org/openldap/openldap/-/blob/master/doc/guide/admin/ac… says: “““ This directive allows users to modify their own entries if security protections have of strength 128 or better have been established, allows authentication access to anonymous users, and read access when 64 or better security protections have been established. ””” The first “have” must be deleted. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9649] New: servers/slapd/schema/README missing schema
by openldap-its＠openldap.org 25 Oct '21

25 Oct '21

https://bugs.openldap.org/show_bug.cgi?id=9649 Issue ID: 9649 Summary: servers/slapd/schema/README missing schema Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: documentation Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- The servers/slapd/schema/README file is supposed to contain information about the schema files found in this directory. However it is missing any entry for: dsee.schema msuser.schema namedobject.schema pmi.schema -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9638] New: ldapsearch.1 documents default value of -T inaccurately
by openldap-its＠openldap.org 25 Oct '21

25 Oct '21

https://bugs.openldap.org/show_bug.cgi?id=9638 Issue ID: 9638 Summary: ldapsearch.1 documents default value of -T inaccurately Product: OpenLDAP Version: 2.5.6 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: documentation Assignee: bugs(a)openldap.org Reporter: ryan(a)openldap.org Target Milestone: --- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=992130 The ldapsearch.1 man page says the default value for tmpdir (-T) is /var/tmp. The actual default value can come from a number of sources: environment variables (TMPDIR, TMP, TEMP), preprocessor macros (_P_tmpdir, P_tmpdir, _PATH_TMPDIR), or a hard-coded fallback (/tmp). The ldapsearch --help output correctly reflects the default value. It would be nice if the ldapsearch man page would reflect the actual compile-time default (LDAP_TMPDIR) and mention that it consults some environment variables. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9589] New: slapd.access.5 incorrect man page references
by openldap-its＠openldap.org 25 Oct '21

25 Oct '21

https://bugs.openldap.org/show_bug.cgi?id=9589 Issue ID: 9589 Summary: slapd.access.5 incorrect man page references Product: OpenLDAP Version: 2.5.5 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: documentation Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- The slapd.access(5) man page references: .BR back\-mdb (5). .BR back\-sql (5), Neither of these are valid man pages, as they are slapd-mdb(5) and slapd-sql(5). However, we reference back-<backend> throughout our documentation. Should we perhaps create links for the backend manpages so they can be found either way? I.e.: slapd-mdb.5.links -> back-mdb.5 -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9586] New: Admin guide: Need example fractional replication configuration
by openldap-its＠openldap.org 25 Oct '21

25 Oct '21

https://bugs.openldap.org/show_bug.cgi?id=9586 Issue ID: 9586 Summary: Admin guide: Need example fractional replication configuration Product: OpenLDAP Version: 2.5.5 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: documentation Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- The admin guide states: Syncrepl supports partial, sparse, and fractional replications but there are no example configurations for partial replication to draw from. This needs to be added to the guide. -- You are receiving this mail because: You are on the CC list for the issue.

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openldap-bugs September 2021