nick@eurobjects.com wrote:

Full_Name: Nikolaos Milas Version: 2.4.26 (LTB RPM) OS: CentOS 5.7 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (195.251.204.222)

We use the following schema (among others):

Thanks for the report, this is now fixed in git master.

DN: cn={5}postfix,cn=schema,cn=config objectClass: olcSchemaConfig cn: {5}postfix olcAttributeTypes: {0}( 1.3.6.1.4.1.25260.1.000 NAME 'mailacceptinggeneralid' DESC 'Defines an address that we accept mail for' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 ) olcAttributeTypes: {1}( 1.3.6.1.4.1.25260.1.001 NAME 'maildrop' DESC 'Defines the address mail goes to' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 ) olcAttributeTypes: {2}( 1.3.6.1.4.1.25260.1.002 NAME 'mailacceptinguser' DESC 'Defines if this user accepts mail' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 ) olcAttributeTypes: {3}( 1.3.6.1.4.1.25260.1.003 NAME 'aliasInactive' DESC 'A flag, for marking the alias as not in use' EQUALITY booleanMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 SINGLE-VALUE ) olcObjectClasses: {0}( 1.3.6.1.4.1.25260.1.1.100 NAME 'virtualaccount' DESC 'Holds mail info for a virtual account' STRUCTURAL MUST ( owner $ mailacceptinggeneralid $ maildrop $ cn ) MAY ( description $ aliasInactive ) ) olcObjectClasses: {1}( 1.3.6.1.4.1.25260.1.1.101 NAME 'maillist' DESC 'Virtual account for holding mailing list info' STRUCTURAL MUST ( mailacceptinggeneralid $ maildrop $ cn ) MAY ( owner $ description $ aliasInactive ) ) olcObjectClasses: {2}( 1.3.6.1.4.1.25260.1.1.102 NAME 'mailAccount' DESC 'Email account details' AUXILIARY MUST ( mailacceptinguser $ maildrop $ cn ) MAY ( mailacceptinggeneralid $ aliasInactive ) ) olcObjectClasses: {3}( 1.3.6.1.4.1.25260.1.1.105 NAME 'virtualbox' DESC 'Mailbox for system use' STRUCTURAL MUST ( owner $ mail $ uid $ cn ) MAY description )

We run: # /usr/local/openldap/bin/ldapmodify -h localhost -x -v -W -D "cn=admin,cn=config" -f /root/work/schemachange1

where /root/work/schemachange1: dn: cn={5}postfix,cn=schema,cn=config changetype: modify delete: olcAttributeTypes olcAttributeTypes: {0}( 1.3.6.1.4.1.25260.1.000 NAME 'mailacceptinggeneralid' DESC 'Defines an address that we accept mail for' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )

add: olcAttributeTypes olcAttributeTypes: {0}( 1.3.6.1.4.1.25260.1.0 NAME 'mailacceptinggeneralid' DESC 'Defines an address that we accept mail for' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )

This is successful: [root@ldap work]# /usr/local/openldap/bin/ldapmodify -h localhost -x -v -W -D "cn=admin,cn=config" -f /root/work/schemachange1 ldap_initialize( ldap://localhost ) Enter LDAP Password: delete olcAttributeTypes: {0}( 1.3.6.1.4.1.25260.1.000 NAME 'mailacceptinggeneralid' DESC 'Defines an address that we accept mail for' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 ) add olcAttributeTypes: {0}( 1.3.6.1.4.1.25260.1.0 NAME 'mailacceptinggeneralid' DESC 'Defines an address that we accept mail for' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 ) modifying entry "cn={5}postfix,cn=schema,cn=config" modify complete

However, then we try to run: # /usr/local/openldap/bin/ldapmodify -h localhost -x -v -W -D "cn=admin,cn=config" -f /root/work/schemachange2

where /root/work/schemachange2: dn: cn={5}postfix,cn=schema,cn=config changetype: modify delete: olcAttributeTypes olcAttributeTypes: {1}( 1.3.6.1.4.1.25260.1.001 NAME 'maildrop' DESC 'Defines the address mail goes to' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )

add: olcAttributeTypes olcAttributeTypes: {1}( 1.3.6.1.4.1.25260.1.1 NAME 'maildrop' DESC 'Defines the address mail goes to' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )

and this causes an OpenLDAP crash: [root@ldap work]# /usr/local/openldap/bin/ldapmodify -h localhost -x -v -W -D "cn=admin,cn=config" -f /root/work/schemachange2 ldap_initialize( ldap://localhost ) Enter LDAP Password: delete olcAttributeTypes: {1}( 1.3.6.1.4.1.25260.1.001 NAME 'maildrop' DESC 'Defines the address mail goes to' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 ) add olcAttributeTypes: {1}( 1.3.6.1.4.1.25260.1.1 NAME 'maildrop' DESC 'Defines the address mail goes to' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 ) modifying entry "cn={5}postfix,cn=schema,cn=config"

This hangs, and we interrupt with Ctrl-C.

gdb reports: