[Dovecot] rc12 dovecot-auth core dump with ldap
Chris Wakelin
c.d.wakelin at reading.ac.uk
Tue Nov 7 12:38:00 UTC 2006
Hi,
I've got a core dump during initialisation when I use 1.0.rc12 and LDAP
with authenticated binds in Solaris. It worked OK in 1.0.rc10. Here's
the non-commented entries in dovecot-ldap.conf - some of which are
probably redundant :) :-
hosts = xxx.yyy.rdg.ac.uk
auth_bind = yes
auth_bind_userdn = "cn=%n,cn=users,dc=xxx,dc=yyy,dc=rdg,dc=ac,dc=uk"
ldap_version = 3
base = "dc=xxx,dc=yyy,dc=rdg,dc=ac,dc=uk"
deref = never
scope = subtree
user_filter = (&(objectClass=User)(sAMAccountName=%n))
pass_filter = (&(objectClass=User)(sAMAccountName=%n))
Strangely, it crashes in a different place when I don't define the
scope, so I'm guessing it's something to do with reading parameters.
backtrace with "scope = subtree" :
#0 0x1ec94 in db_ldap_init (
config_path=0x5bc08 "/opt/RDGdovect/etc/dovecot-ldap.conf")
at db-ldap.c:661
661 if (*conn->set.user_global_gid == '\0')
(gdb) bt
#0 0x1ec94 in db_ldap_init (
config_path=0x5bc08 "/opt/RDGdovect/etc/dovecot-ldap.conf")
at db-ldap.c:661
#1 0x246e8 in passdb_ldap_preinit (auth_passdb=0x5bbe8,
args=0x5bc08 "/opt/RDGdovect/etc/dovecot-ldap.conf") at
passdb-ldap.c:486
#2 0x2328c in passdb_preinit (auth=0x5b838, driver=0xffbefec0 "ldap",
args=0x0, id=332176) at passdb.c:169
#3 0x17648 in auth_preinit () at auth.c:45
#4 0x1ff0c in drop_privileges () at main.c:195
#5 0x2024c in main (argc=0, argv=0xffbefb54) at main.c:319
and with scope left commented out:
#0 0xff0cf600 in strcasecmp () from /usr/lib/libc.so.1
(gdb) bt
#0 0xff0cf600 in strcasecmp () from /usr/lib/libc.so.1
#1 0x1df58 in scope2str (str=0x0) at db-ldap.c:116
#2 0x1ec4c in db_ldap_init (
config_path=0x5bc08 "/opt/RDGdovect/etc/dovecot-ldap.conf")
at db-ldap.c:648
#3 0x246e8 in passdb_ldap_preinit (auth_passdb=0x5bbe8,
args=0x5bc08 "/opt/RDGdovect/etc/dovecot-ldap.conf") at
passdb-ldap.c:486
#4 0x2328c in passdb_preinit (auth=0x5b838, driver=0xffbefec0 "ldap",
args=0x0, id=332176) at passdb.c:169
#5 0x17648 in auth_preinit () at auth.c:45
#6 0x1ff0c in drop_privileges () at main.c:195
#7 0x2024c in main (argc=0, argv=0xffbefb54) at main.c:319
If I don't define "deref" then I get an error in the dovecot log (but no
crash) :-
dovecot: Nov 07 12:36:45 Error: auth(default): LDAP: Unknown deref
option 'subtree'
I'll keep digging and see if I can find the cause, but has anybody else
seen this?
Chris
--
--+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+-
Christopher Wakelin, c.d.wakelin at reading.ac.uk
IT Services Centre, The University of Reading, Tel: +44 (0)118 378 8439
Whiteknights, Reading, RG6 2AF, UK Fax: +44 (0)118 975 3094
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