Migrating OpenLDAP database with samba schema to slapd 2.4.x

According to https://help.ubuntu.com/8.10/serverguide/C/samba-ldap.html the configuration of OpenLDAP server has changed to a more flexible (and at first sight a bit obscure) directory based one. The guide is a bit long so i've decided to put my own findings here.

First, I've configured a new LDAP database. All I was missing was a samba schema definition. Unfortunately the old samba.schema file does not work anymore so I've created the following one according to the guide:

dn: cn=samba
objectClass: olcSchemaConfig
cn: samba
olcAttributeTypes: {0}( 1.3.6.1.4.1.7165.2.1.24 NAME 'sambaLMPassword' DESC 'LanManager Password' EQUALITY caseIgnoreIA5Match SYNTAX 1.3.6.1.4.1.1466.115.1 21.1.26{32} SINGLE-VALUE )
olcAttributeTypes: {1}( 1.3.6.1.4.1.7165.2.1.25 NAME 'sambaNTPassword' DESC 'MD4 hash of the unicode password' EQUALITY caseIgnoreIA5Match SYNTAX 1.3.6.1.4 .1.1466.115.121.1.26{32} SINGLE-VALUE )
olcAttributeTypes: {2}( 1.3.6.1.4.1.7165.2.1.26 NAME 'sambaAcctFlags' DESC 'Account Flags' EQUALITY caseIgnoreIA5Match SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 {16} SINGLE-VALUE )
olcAttributeTypes: {3}( 1.3.6.1.4.1.7165.2.1.27 NAME 'sambaPwdLastSet' DESC 'Timestamp of the last password update' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {4}( 1.3.6.1.4.1.7165.2.1.28 NAME 'sambaPwdCanChange' DESC 'Timestamp of when the user is allowed to update the password' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {5}( 1.3.6.1.4.1.7165.2.1.29 NAME 'sambaPwdMustChange' DESC 'Timestamp of when the password will expire' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {6}( 1.3.6.1.4.1.7165.2.1.30 NAME 'sambaLogonTime' DESC 'Timestamp of last logon' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {7}( 1.3.6.1.4.1.7165.2.1.31 NAME 'sambaLogoffTime' DESC 'Timestamp of last logoff' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {8}( 1.3.6.1.4.1.7165.2.1.32 NAME 'sambaKickoffTime' DESC ' Timestamp of when the user will be logged off automatically' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {9}( 1.3.6.1.4.1.7165.2.1.48 NAME 'sambaBadPasswordCount' DESC 'Bad password attempt count' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {10}( 1.3.6.1.4.1.7165.2.1.49 NAME 'sambaBadPasswordTime' DESC 'Time of the last bad password attempt' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {11}( 1.3.6.1.4.1.7165.2.1.55 NAME 'sambaLogonHours' DESC ' Logon Hours' EQUALITY caseIgnoreIA5Match SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 {42} SINGLE-VALUE )
olcAttributeTypes: {12}( 1.3.6.1.4.1.7165.2.1.33 NAME 'sambaHomeDrive' DESC 'Driver letter of home directory mapping' EQUALITY caseIgnoreIA5Match SYNTAX 1.3.6.1.4.1.1466.115.121.1.26{4} SINGLE-VALUE )
olcAttributeTypes: {13}( 1.3.6.1.4.1.7165.2.1.34 NAME 'sambaLogonScript' DESC 'Logon script path' EQUALITY caseIgnoreMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{255} SINGLE-VALUE )
olcAttributeTypes: {14}( 1.3.6.1.4.1.7165.2.1.35 NAME 'sambaProfilePath' DESC 'Roaming profile path' EQUALITY caseIgnoreMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{255} SINGLE-VALUE )
olcAttributeTypes: {15}( 1.3.6.1.4.1.7165.2.1.36 NAME 'sambaUserWorkstations' DESC 'List of user workstations the user is allowed to logon to' EQUALITY caseIgnoreMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{255} SINGLE-VALUE )
olcAttributeTypes: {16}( 1.3.6.1.4.1.7165.2.1.37 NAME 'sambaHomePath' DESC 'Home directory UNC path' EQUALITY caseIgnoreMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{128} )
olcAttributeTypes: {17}( 1.3.6.1.4.1.7165.2.1.38 NAME 'sambaDomainName' DESC ' Windows NT domain to which the user belongs' EQUALITY caseIgnoreMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{128} )
olcAttributeTypes: {18}( 1.3.6.1.4.1.7165.2.1.47 NAME 'sambaMungedDial' DESC ' ' EQUALITY caseExactMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{1050} )
olcAttributeTypes: {19}( 1.3.6.1.4.1.7165.2.1.54 NAME 'sambaPasswordHistory' DESC 'Concatenated MD4 hashes of the unicode passwords used on this account' EQUALITY caseIgnoreIA5Match SYNTAX 1.3.6.1.4.1.1466.115.121.1.26{32} )
olcAttributeTypes: {20}( 1.3.6.1.4.1.7165.2.1.20 NAME 'sambaSID' DESC 'Security ID' EQUALITY caseIgnoreIA5Match SYNTAX 1.3.6.1.4.1.1466.115.121.1.26{64} SINGLE-VALUE )
olcAttributeTypes: {21}( 1.3.6.1.4.1.7165.2.1.23 NAME 'sambaPrimaryGroupSID' DESC 'Primary Group Security ID' EQUALITY caseIgnoreIA5Match SYNTAX 1.3.6.1.4.1.1466.115.121.1.26{64} SINGLE-VALUE )
olcAttributeTypes: {22}( 1.3.6.1.4.1.7165.2.1.51 NAME 'sambaSIDList' DESC 'Security ID List' EQUALITY caseIgnoreIA5Match SYNTAX 1.3.6.1.4.1.1466.115.121.1.26{64} )
olcAttributeTypes: {23}( 1.3.6.1.4.1.7165.2.1.19 NAME 'sambaGroupType' DESC 'NT Group Type' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {24}( 1.3.6.1.4.1.7165.2.1.21 NAME 'sambaNextUserRid' DESC 'Next NT rid to give our for users' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {25}( 1.3.6.1.4.1.7165.2.1.22 NAME 'sambaNextGroupRid' DESC 'Next NT rid to give out for groups' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {26}( 1.3.6.1.4.1.7165.2.1.39 NAME 'sambaNextRid' DESC 'Next NT rid to give out for anything' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1 466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {27}( 1.3.6.1.4.1.7165.2.1.40 NAME 'sambaAlgorithmicRidBase' DESC 'Base at which the samba RID generation algorithm should operate' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {28}( 1.3.6.1.4.1.7165.2.1.41 NAME 'sambaShareName' DESC 'Share Name' EQUALITY caseIgnoreMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 SINGLE-VALUE )
olcAttributeTypes: {29}( 1.3.6.1.4.1.7165.2.1.42 NAME 'sambaOptionName' DESC 'Option Name' EQUALITY caseIgnoreMatch SUBSTR caseIgnoreSubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{256} )
olcAttributeTypes: {30}( 1.3.6.1.4.1.7165.2.1.43 NAME 'sambaBoolOption' DESC 'A boolean option' EQUALITY booleanMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 SINGLE-VALUE )
olcAttributeTypes: {31}( 1.3.6.1.4.1.7165.2.1.44 NAME 'sambaIntegerOption' DESC 'An integer option' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcAttributeTypes: {32}( 1.3.6.1.4.1.7165.2.1.45 NAME 'sambaStringOption' DESC 'A string option' EQUALITY caseExactIA5Match SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 SINGLE-VALUE )
olcAttributeTypes: {33}( 1.3.6.1.4.1.7165.2.1.46 NAME 'sambaStringListOption' DESC 'A string list option' EQUALITY caseIgnoreMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
olcAttributeTypes: {34}( 1.3.6.1.4.1.7165.2.1.53 NAME 'sambaTrustFlags' DESC 'Trust Password Flags' EQUALITY caseIgnoreIA5Match SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 )
olcAttributeTypes: {35}( 1.3.6.1.4.1.7165.2.1.56 NAME 'sambaAccountPolicyName' DESC 'Account Policy Name' EQUALITY caseIgnoreMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{255} SINGLE-VALUE )
olcAttributeTypes: {36}( 1.3.6.1.4.1.7165.2.1.57 NAME 'sambaAccountPolicyValue' DESC 'Account Policy Value' EQUALITY integerMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 SINGLE-VALUE )
olcObjectClasses: {0}( 1.3.6.1.4.1.7165.2.2.6 NAME 'sambaSamAccount' DESC 'Samba 3.0 Auxilary SAM Account' SUP top AUXILIARY MUST ( uid $ sambaSID ) MAY (cn $ sambaLMPassword $ sambaNTPassword $ sambaPwdLastSet $ sambaLogonTime $ sambaLogoffTime $ sambaKickoffTime $ sambaPwdCanChange $ sambaPwdMustChange $sambaAcctFlags $ displayName $ sambaHomePath $ sambaHomeDrive $ sambaLogonScript $ sambaProfilePath $ description $ sambaUserWorkstations $ sambaPrimaryGroupSID $ sambaDomainName $ sambaMungedDial $ sambaBadPasswordCount $ sambaBadPasswordTime $ sambaPasswordHistory $ sambaLogonHours ) )
olcObjectClasses: {1}( 1.3.6.1.4.1.7165.2.2.4 NAME 'sambaGroupMapping' DESC 'Samba Group Mapping' SUP top AUXILIARY MUST ( gidNumber $ sambaSID $ sambaGroupType ) MAY ( displayName $ description $ sambaSIDList ) )
olcObjectClasses: {2}( 1.3.6.1.4.1.7165.2.2.14 NAME 'sambaTrustPassword' DESC 'Samba Trust Password' SUP top STRUCTURAL MUST ( sambaDomainName $ sambaNTPassword $ sambaTrustFlags ) MAY ( sambaSID $ sambaPwdLastSet ) )
olcObjectClasses: {3}( 1.3.6.1.4.1.7165.2.2.5 NAME 'sambaDomain' DESC 'Samba Domain Information' SUP top STRUCTURAL MUST ( sambaDomainName $ sambaSID ) MAY  ( sambaNextRid $ sambaNextGroupRid $ sambaNextUserRid $ sambaAlgorithmicRidBase ) )
olcObjectClasses: {4}( 1.3.6.1.4.1.7165.2.2.7 NAME 'sambaUnixIdPool' DESC 'Pool for allocating UNIX uids/gids' SUP top AUXILIARY MUST ( uidNumber $ gidNumber ) )
olcObjectClasses: {5}( 1.3.6.1.4.1.7165.2.2.8 NAME 'sambaIdmapEntry' DESC 'Mapping from a SID to an ID' SUP top AUXILIARY MUST sambaSID MAY ( uidNumber $ gidNumber ) )
olcObjectClasses: {6}( 1.3.6.1.4.1.7165.2.2.9 NAME 'sambaSidEntry' DESC 'Structural Class for a SID' SUP top STRUCTURAL MUST sambaSID )
olcObjectClasses: {7}( 1.3.6.1.4.1.7165.2.2.10 NAME 'sambaConfig' DESC 'Samba Configuration Section' SUP top AUXILIARY MAY description )
olcObjectClasses: {8}( 1.3.6.1.4.1.7165.2.2.11 NAME 'sambaShare' DESC 'Samba Share Section' SUP top STRUCTURAL MUST sambaShareName MAY description )
olcObjectClasses: {9}( 1.3.6.1.4.1.7165.2.2.12 NAME 'sambaConfigOption' DESC 'Samba Configuration Option' SUP top STRUCTURAL MUST sambaOptionName MAY ( sambaBoolOption $ sambaIntegerOption $ sambaStringOption $ sambaStringListoption $ description ) )
olcObjectClasses: {10}( 1.3.6.1.4.1.7165.2.2.15 NAME 'sambaAccountPolicy' DESC 'Samba Account Policy' SUP top STRUCTURAL MUST ( sambaAccountPolicyName $ sambaAccountPolicyValue ) MAY description )

Then I've placed this file in /etc/ldap/slapd.d/cn=config/cn=schema/ called cn={4}samba.ldif where {4} was the next free identifier (of course changing the permissions of the file to belong to openldap:openldap).

The next thing I've done was to create the indexes based on the guide. I've reated a file called samba_indexes.ldif:

dn: olcDatabase={1}hdb,cn=config
changetype: modify
add: olcDbIndex
olcDbIndex: uidNumber eq
olcDbIndex: gidNumber eq
olcDbIndex: loginShell eq
olcDbIndex: uid eq,pres,sub
olcDbIndex: memberUid eq,pres,sub
olcDbIndex: uniqueMember eq,pres
olcDbIndex: sambaSID eq
olcDbIndex: sambaPrimaryGroupSID eq
olcDbIndex: sambaGroupType eq
olcDbIndex: sambaSIDList eq
olcDbIndex: sambaDomainName eq
olcDbIndex: default sub

Then I've run ldapmodify -x -D cn=admin,cn=config -W -f samba_indexes.ldif and voila: the old database could be loaded from an ldif file with ldapadd.