Postgres Server installiert und über localhost erreichbar

Pakete: odbc-postgresql unixodbc slapd

Als Nutzer

apt-get source slapd

su - postgres
createuser -SDRP pgldap
createdb -E utf8 -O pgldap pgldap
exit

Als Nutzer

psql pgldap pgldap < ./openldap-2.4.23/servers/slapd/back-sql/rdbms_depend/pgsql/backsql_create.sql
psql pgldap pgldap < ./openldap-2.4.23/servers/slapd/back-sql/rdbms_depend/pgsql/testdb_create.sql
psql pgldap pgldap < ./openldap-2.4.23/servers/slapd/back-sql/rdbms_depend/pgsql/testdb_data.sql
psql pgldap pgldap < ./openldap-2.4.23/servers/slapd/back-sql/rdbms_depend/pgsql/testdb_metadata.sql

backsql_create.sql :

DROP TABLE ldap_oc_mappings;
DROP SEQUENCE ldap_oc_mappings_id_seq;
CREATE TABLE ldap_oc_mappings
 (
        id serial NOT NULL PRIMARY KEY,
        name VARCHAR(64) NOT NULL,
        keytbl VARCHAR(64) NOT NULL,
        keycol VARCHAR(64) NOT NULL,
        create_proc VARCHAR(255),
        delete_proc VARCHAR(255),
        expect_return INT NOT NULL
);
 
DROP TABLE ldap_attr_mappings;
DROP SEQUENCE ldap_attr_mappings_id_seq;
CREATE TABLE ldap_attr_mappings
 (
        id serial NOT NULL PRIMARY KEY,
        oc_map_id INTEGER NOT NULL REFERENCES ldap_oc_mappings(id),
        name VARCHAR(255) NOT NULL,
        sel_expr VARCHAR(255) NOT NULL,
        sel_expr_u VARCHAR(255),
        from_tbls VARCHAR(255) NOT NULL,
        join_where VARCHAR(255),
        add_proc VARCHAR(255),
        delete_proc VARCHAR(255),
        param_order INT NOT NULL,
        expect_return INT NOT NULL
);
 
DROP TABLE ldap_entries;
DROP SEQUENCE ldap_entries_id_seq;
CREATE TABLE ldap_entries
 (
        id serial NOT NULL PRIMARY KEY,
        dn VARCHAR(255) NOT NULL,
        oc_map_id INTEGER NOT NULL REFERENCES ldap_oc_mappings(id),
        parent INT NOT NULL,
        keyval INT NOT NULL,
        UNIQUE ( oc_map_id, keyval ),
        UNIQUE ( dn )
);
 
DROP TABLE ldap_entry_objclasses;
CREATE TABLE ldap_entry_objclasses
 (
        entry_id INTEGER NOT NULL REFERENCES ldap_entries(id),
        oc_name VARCHAR(64)
 );

testdb_create.sql :

DROP TABLE persons;
DROP SEQUENCE persons_id_seq;
CREATE TABLE persons (
        id serial NOT NULL PRIMARY KEY,
        name VARCHAR(255) NOT NULL,
        surname VARCHAR(255) NOT NULL,
        password VARCHAR(64)
);
 
DROP TABLE institutes;
DROP SEQUENCE institutes_id_seq;
CREATE TABLE institutes (
        id serial NOT NULL PRIMARY KEY,
        name VARCHAR(255)
);
 
DROP TABLE documents;
DROP SEQUENCE documents_id_seq;
CREATE TABLE documents (
        id serial NOT NULL PRIMARY KEY,
        title VARCHAR(255) NOT NULL,
        abstract VARCHAR(255)
);
 
DROP TABLE authors_docs;
CREATE TABLE authors_docs (
        pers_id INT NOT NULL,
        doc_id INT NOT NULL,
        PRIMARY KEY ( pers_id, doc_id )
);
 
DROP TABLE phones;
DROP SEQUENCE phones_id_seq;
CREATE TABLE phones (
        id serial NOT NULL PRIMARY KEY,
        phone VARCHAR(255) NOT NULL ,
        pers_id INT NOT NULL
);
 
DROP TABLE certs;
DROP SEQUENCE certs_id_seq;
CREATE TABLE certs (
        id INT NOT NULL PRIMARY KEY,
        cert bytea NOT NULL,
        pers_id INT NOT NULL 
);
 
DROP TABLE referrals;
DROP SEQUENCE referrals_id_seq;
CREATE TABLE referrals (
        id serial NOT NULL PRIMARY KEY,
        name VARCHAR(255) NOT NULL,
        url VARCHAR(255) NOT NULL
);

testdb_data.sql :

INSERT INTO institutes (id,name) VALUES (1,'Example');
 
INSERT INTO persons (id,name,surname,password) VALUES (1,'Mitya','Kovalev','mit');
INSERT INTO persons (id,name,surname) VALUES (2,'Torvlobnor','Puzdoy');
INSERT INTO persons (id,name,surname) VALUES (3,'Akakiy','Zinberstein');
 
INSERT INTO phones (id,phone,pers_id) VALUES (1,'332-2334',1);
INSERT INTO phones (id,phone,pers_id) VALUES (2,'222-3234',1);
INSERT INTO phones (id,phone,pers_id) VALUES (3,'545-4563',2);
 
INSERT INTO documents (id,abstract,title) VALUES (1,'abstract1','book1');
INSERT INTO documents (id,abstract,title) VALUES (2,'abstract2','book2');
 
INSERT INTO authors_docs (pers_id,doc_id) VALUES (1,1);
INSERT INTO authors_docs (pers_id,doc_id) VALUES (1,2);
INSERT INTO authors_docs (pers_id,doc_id) VALUES (2,1);
 
INSERT INTO referrals (id,name,url) VALUES (1,'Referral','ldap://localhost:9012/');
 
INSERT INTO certs (id,cert,pers_id) VALUES (1,decode('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','base64'),3);

testdb_metadata.sql :

-- mappings 
 
-- objectClass mappings: these may be viewed as structuralObjectClass, the ones that are used to decide how to build an entry
--      id              a unique number identifying the objectClass
--      name            the name of the objectClass; it MUST match the name of an objectClass that is loaded in slapd's schema
--      keytbl          the name of the table that is referenced for the primary key of an entry
--      keycol          the name of the column in "keytbl" that contains the primary key of an entry; the pair "keytbl.keycol" uniquely identifies an entry of objectClass "id"
--      create_proc     a procedure to create the entry
--      delete_proc     a procedure to delete the entry; it takes "keytbl.keycol" of the row to be deleted
--      expect_return   a bitmap that marks whether create_proc (1) and delete_proc (2) return a value or not
INSERT INTO ldap_oc_mappings (id,name,keytbl,keycol,create_proc,delete_proc,expect_return) VALUES (1,'inetOrgPerson','persons','id','SELECT create_person()','DELETE FROM persons WHERE id=?',0);
 
INSERT INTO ldap_oc_mappings (id,name,keytbl,keycol,create_proc,delete_proc,expect_return) VALUES (2,'document','documents','id','SELECT create_doc()','DELETE FROM documents WHERE id=?',0);
 
INSERT INTO ldap_oc_mappings (id,name,keytbl,keycol,create_proc,delete_proc,expect_return) VALUES (3,'organization','institutes','id','SELECT create_o()','DELETE FROM institutes WHERE id=?',0);
 
INSERT INTO ldap_oc_mappings (id,name,keytbl,keycol,create_proc,delete_proc,expect_return) VALUES (4,'referral','referrals','id','SELECT create_referral()','DELETE FROM referrals WHERE id=?',0);
 
-- attributeType mappings: describe how an attributeType for a certain objectClass maps to the SQL data.
--      id              a unique number identifying the attribute
--      oc_map_id       the value of "ldap_oc_mappings.id" that identifies the objectClass this attributeType is defined for
--      name            the name of the attributeType; it MUST match the name of an attributeType that is loaded in slapd's schema
--      sel_expr        the expression that is used to select this attribute (the "select <sel_expr> from ..." portion)
--      from_tbls       the expression that defines the table(s) this attribute is taken from (the "select ... from <from_tbls> where ..." portion)
--      join_where      the expression that defines the condition to select this attribute (the "select ... where <join_where> ..." portion)
--      add_proc        a procedure to insert the attribute; it takes the value of the attribute that is added, and the "keytbl.keycol" of the entry it is associated to
--      delete_proc     a procedure to delete the attribute; it takes the value of the attribute that is added, and the "keytbl.keycol" of the entry it is associated to
--      param_order     a mask that marks if the "keytbl.keycol" value comes before or after the value in add_proc (1) and delete_proc (2)
--      expect_return   a mask that marks whether add_proc (1) and delete_proc(2) are expected to return a value or not
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (1,1,'cn','text(persons.name||'' ''||persons.surname)','persons',NULL,'SELECT update_person_cn(?,?)','SELECT 1 FROM persons WHERE persons.name=? AND persons.id=? AND 1=0',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (2,1,'telephoneNumber','phones.phone','persons,phones','phones.pers_id=persons.id','SELECT add_phone(?,?)','DELETE FROM phones WHERE phone=? AND pers_id=?',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (3,1,'givenName','persons.name','persons',NULL,'UPDATE persons SET name=? WHERE id=?','UPDATE persons SET name='''' WHERE (name=? OR name='''') AND id=?',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (4,1,'sn','persons.surname','persons',NULL,'UPDATE persons SET surname=? WHERE id=?','UPDATE persons SET surname='''' WHERE (surname=? OR surname='''') AND id=?',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (5,1,'userPassword','persons.password','persons','persons.password IS NOT NULL','UPDATE persons SET password=? WHERE id=?','UPDATE persons SET password=NULL WHERE password=? AND id=?',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (6,1,'seeAlso','seeAlso.dn','ldap_entries AS seeAlso,documents,authors_docs,persons','seeAlso.keyval=documents.id AND seeAlso.oc_map_id=2 AND authors_docs.doc_id=documents.id AND authors_docs.pers_id=persons.id',NULL,'DELETE from authors_docs WHERE authors_docs.doc_id=(SELECT documents.id FROM documents,ldap_entries AS seeAlso WHERE seeAlso.keyval=documents.id AND seeAlso.oc_map_id=2 AND seeAlso.dn=?) AND authors_docs.pers_id=?',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (7,2,'description','documents.abstract','documents',NULL,'UPDATE documents SET abstract=? WHERE id=?','UPDATE documents SET abstract='''' WHERE abstract=? AND id=?',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (8,2,'documentTitle','documents.title','documents',NULL,'UPDATE documents SET title=? WHERE id=?','UPDATE documents SET title='''' WHERE title=? AND id=?',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (9,2,'documentAuthor','documentAuthor.dn','ldap_entries AS documentAuthor,documents,authors_docs,persons','documentAuthor.keyval=persons.id AND documentAuthor.oc_map_id=1 AND authors_docs.doc_id=documents.id AND authors_docs.pers_id=persons.id','INSERT INTO authors_docs (pers_id,doc_id) VALUES ((SELECT ldap_entries.keyval FROM ldap_entries WHERE upper(?)=upper(ldap_entries.dn)),?)','DELETE FROM authors_docs WHERE authors_docs.pers_id=(SELECT ldap_entries.keyval FROM ldap_entries WHERE upper(?)=upper(ldap_entries.dn)) AND authors_docs.doc_id=?',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (10,2,'documentIdentifier','''document ''||text(documents.id)','documents',NULL,NULL,'SELECT 1 FROM documents WHERE title=? AND id=? AND 1=0',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (11,3,'o','institutes.name','institutes',NULL,'UPDATE institutes SET name=? WHERE id=?','UPDATE institutes SET name='''' WHERE name=? AND id=?',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (12,3,'dc','lower(institutes.name)','institutes,ldap_entries AS dcObject,ldap_entry_objclasses AS auxObjectClass','institutes.id=dcObject.keyval AND dcObject.oc_map_id=3 AND dcObject.id=auxObjectClass.entry_id AND auxObjectClass.oc_name=''dcObject''',NULL,'SELECT 1 FROM institutes WHERE lower(name)=? AND id=? and 1=0',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (13,4,'ou','referrals.name','referrals',NULL,'UPDATE referrals SET name=? WHERE id=?','SELECT 1 FROM referrals WHERE name=? AND id=? and 1=0',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (14,4,'ref','referrals.url','referrals',NULL,'UPDATE referrals SET url=? WHERE id=?','SELECT 1 FROM referrals WHERE url=? and id=? and 1=0',3,0);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where,add_proc,delete_proc,param_order,expect_return) VALUES (15,1,'userCertificate','certs.cert','persons,certs','certs.pers_id=persons.id',NULL,NULL,3,0);
 
-- entries mapping: each entry must appear in this table, with a unique DN rooted at the database naming context
--      id              a unique number > 0 identifying the entry
--      dn              the DN of the entry, in "pretty" form
--      oc_map_id       the "ldap_oc_mappings.id" of the main objectClass of this entry (view it as the structuralObjectClass)
--      parent          the "ldap_entries.id" of the parent of this objectClass; 0 if it is the "suffix" of the database
--      keyval          the value of the "keytbl.keycol" defined for this objectClass
INSERT INTO ldap_entries (id,dn,oc_map_id,parent,keyval) VALUES (1,'dc=example,dc=com',3,0,1);
 
INSERT INTO ldap_entries (id,dn,oc_map_id,parent,keyval) VALUES (2,'cn=Mitya Kovalev,dc=example,dc=com',1,1,1);
 
INSERT INTO ldap_entries (id,dn,oc_map_id,parent,keyval) VALUES (3,'cn=Torvlobnor Puzdoy,dc=example,dc=com',1,1,2);
 
INSERT INTO ldap_entries (id,dn,oc_map_id,parent,keyval) VALUES (4,'cn=Akakiy Zinberstein,dc=example,dc=com',1,1,3);
 
INSERT INTO ldap_entries (id,dn,oc_map_id,parent,keyval) VALUES (5,'documentTitle=book1,dc=example,dc=com',2,1,1);
 
INSERT INTO ldap_entries (id,dn,oc_map_id,parent,keyval) VALUES (6,'documentTitle=book2,dc=example,dc=com',2,1,2);
 
INSERT INTO ldap_entries (id,dn,oc_map_id,parent,keyval) VALUES (7,'ou=Referral,dc=example,dc=com',4,1,1);
 
-- objectClass mapping: entries that have multiple objectClass instances are listed here with the objectClass name (view them as auxiliary objectClass)
--      entry_id        the "ldap_entries.id" of the entry this objectClass value must be added
--      oc_name         the name of the objectClass; it MUST match the name of an objectClass that is loaded in slapd's schema
INSERT INTO ldap_entry_objclasses (entry_id,oc_name) VALUES (1,'dcObject');
 
INSERT INTO ldap_entry_objclasses (entry_id,oc_name) VALUES (4,'pkiUser');
 
INSERT INTO ldap_entry_objclasses (entry_id,oc_name) VALUES (7,'extensibleObject');
 
-- procedures
-- these procedures are specific for this RDBMS and are used in mapping objectClass and attributeType creation/modify/deletion
CREATE FUNCTION create_person () RETURNS INT
AS '
        select setval (''persons_id_seq'', (select case when max(id) is null then 1 else max(id) end from persons));
        insert into persons (id,name,surname) 
                values ((select case when max(id) is null then 1 else nextval(''persons_id_seq'') end from persons),'''','''');
        select max(id) from persons
' LANGUAGE 'sql';
 
CREATE FUNCTION update_person_cn (VARCHAR, INT) RETURNS INT
AS '
        update persons set name = (
                select case 
                        when position('' '' in $1) = 0 then $1 
                        else substr($1, 1, position('' '' in $1) - 1)
                end
        ),surname = (
                select case 
                        when position('' '' in $1) = 0 then ''''
                        else substr($1, position('' '' in $1) + 1) 
                end
        ) where id = $2;
        select $2 as return
' LANGUAGE 'sql';
 
CREATE FUNCTION add_phone (VARCHAR, INT) RETURNS INT
AS '
        select setval (''phones_id_seq'', (select case when max(id) is null then 1 else max(id) end from phones));
        insert into phones (id,phone,pers_id)
                values (nextval(''phones_id_seq''),$1,$2);
        select max(id) from phones
' LANGUAGE 'sql';
 
CREATE FUNCTION create_doc () RETURNS INT
AS '
        select setval (''documents_id_seq'', (select case when max(id) is null then 1 else max(id) end from documents));
        insert into documents (id,title,abstract) 
                values ((select case when max(id) is null then 1 else nextval(''documents_id_seq'') end from documents),'''','''');
        select max(id) from documents
' LANGUAGE 'sql';
 
CREATE FUNCTION create_o () RETURNS INT
AS '
        select setval (''institutes_id_seq'', (select case when max(id) is null then 1 else max(id) end from institutes));
        insert into institutes (id,name) 
                values ((select case when max(id) is null then 1 else nextval(''institutes_id_seq'') end from institutes),'''');
        select max(id) from institutes
' LANGUAGE 'sql';
 
CREATE FUNCTION create_referral () RETURNS INT
AS '
        select setval (''referrals_id_seq'', (select case when max(id) is null then 1 else max(id) end from referrals));
        insert into referrals (id,name,url) 
                values ((select case when max(id) is null then 1 else nextval(''referrals_id_seq'') end from referrals),'''','''');
        select max(id) from referrals
' LANGUAGE 'sql';

odbcinst -i -d -f /usr/share/psqlodbc/odbcinst.ini.template

erzeugt /etc/odbcinst.ini

/etc/odbc.ini :

[pgldap]
Description         = Example for OpenLDAP's back-sql
Driver              = PostgreSQL Unicode
Trace               = No
Database            = pgldap
Servername          = localhost
UserName            = pgldap
Password            = villa
Port                = 5432
;Protocol            = 6.4
ReadOnly            = No
RowVersioning       = No
ShowSystemTables    = No
ShowOidColumn       = No
FakeOidIndex        = No
ConnSettings        =

ODBC:

isql pgldap pgldap
select * from persons;
quit

/etc/default/slapd :

SLAPD_CONF=/etc/ldap/slapd.conf

/etc/ldap/slapd.conf :

include         /etc/ldap/schema/core.schema
include         /etc/ldap/schema/cosine.schema
include         /etc/ldap/schema/nis.schema
include         /etc/ldap/schema/inetorgperson.schema
pidfile         /var/run/slapd/slapd.pid
argsfile        /var/run/slapd/slapd.args
loglevel        none
modulepath      /usr/lib/ldap
moduleload back_sql.la
moduleload back_monitor.la
sizelimit 500
tool-threads 1
access to attrs=userpassword
        by self =w
        by anonymous =x
access to *
        by * read
backend         sql
database        sql
suffix          "dc=example,dc=com"
rootdn          "cn=Manager,dc=example,dc=com"
rootpw          secret
dbname          pgldap
dbuser          pgldap
dbpasswd        villa
insentry_stmt           "insert into ldap_entries (id,dn,oc_map_id,parent,keyval) values ((select case when max(id) is null then 1 else max(id) + 1 end from ldap_entries),?,?,?,?)"
upper_func              "upper"
strcast_func            "text"
concat_pattern  "?||?"
has_ldapinfo_dn_ru      no
database monitor

ldapsearch -x -W -b dc=example,dc=com -H ldap://localhost -D cn=Manager,dc=example,dc=com

Postgres Server installiert und über localhost erreichbar

Pakete: odbc-postgresql unixodbc slapd

Als Nutzer

apt-get source slapd

su - postgres
createuser -SDRP pgldapro
createdb -E utf8 -O pgldapro pgldapro
exit

testdb_create.sql :

DROP TABLE persons;
DROP SEQUENCE persons_id_seq;
CREATE TABLE persons (
        id serial NOT NULL PRIMARY KEY,
        name VARCHAR(255) NOT NULL,
        surname VARCHAR(255) NOT NULL,
        password VARCHAR(64)
);
 
DROP TABLE institutes;
DROP SEQUENCE institutes_id_seq;
CREATE TABLE institutes (
        id serial NOT NULL PRIMARY KEY,
        name VARCHAR(255)
);
 
DROP TABLE documents;
DROP SEQUENCE documents_id_seq;
CREATE TABLE documents (
        id serial NOT NULL PRIMARY KEY,
        title VARCHAR(255) NOT NULL,
        abstract VARCHAR(255)
);
 
DROP TABLE authors_docs;
CREATE TABLE authors_docs (
        pers_id INT NOT NULL,
        doc_id INT NOT NULL,
        PRIMARY KEY ( pers_id, doc_id )
);
 
DROP TABLE phones;
DROP SEQUENCE phones_id_seq;
CREATE TABLE phones (
        id serial NOT NULL PRIMARY KEY,
        phone VARCHAR(255) NOT NULL ,
        pers_id INT NOT NULL
);
 
DROP TABLE certs;
DROP SEQUENCE certs_id_seq;
CREATE TABLE certs (
        id INT NOT NULL PRIMARY KEY,
        cert bytea NOT NULL,
        pers_id INT NOT NULL 
);
 
DROP TABLE referrals;
DROP SEQUENCE referrals_id_seq;
CREATE TABLE referrals (
        id serial NOT NULL PRIMARY KEY,
        name VARCHAR(255) NOT NULL,
        url VARCHAR(255) NOT NULL
);

testdb_data.sql :

INSERT INTO institutes (id,name) VALUES (1,'Example');
 
INSERT INTO persons (id,name,surname,password) VALUES (1,'Mitya','Kovalev','mit');
INSERT INTO persons (id,name,surname) VALUES (2,'Torvlobnor','Puzdoy');
INSERT INTO persons (id,name,surname) VALUES (3,'Akakiy','Zinberstein');
 
INSERT INTO phones (id,phone,pers_id) VALUES (1,'332-2334',1);
INSERT INTO phones (id,phone,pers_id) VALUES (2,'222-3234',1);
INSERT INTO phones (id,phone,pers_id) VALUES (3,'545-4563',2);
 
INSERT INTO documents (id,abstract,title) VALUES (1,'abstract1','book1');
INSERT INTO documents (id,abstract,title) VALUES (2,'abstract2','book2');
 
INSERT INTO authors_docs (pers_id,doc_id) VALUES (1,1);
INSERT INTO authors_docs (pers_id,doc_id) VALUES (1,2);
INSERT INTO authors_docs (pers_id,doc_id) VALUES (2,1);
 
INSERT INTO referrals (id,name,url) VALUES (1,'Referral','ldap://localhost:9012/');
 
INSERT INTO certs (id,cert,pers_id) VALUES (1,decode('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','base64'),3);

backsql_create.sql :

DROP TABLE ldap_oc_mappings;
DROP SEQUENCE ldap_oc_mappings_id_seq;
CREATE TABLE ldap_oc_mappings
 (
        id serial NOT NULL PRIMARY KEY,
        name VARCHAR(64) NOT NULL,
        keytbl VARCHAR(64) NOT NULL,
        keycol VARCHAR(64) NOT NULL,
        create_proc VARCHAR(255),
        delete_proc VARCHAR(255),
        expect_return INT NOT NULL DEFAULT 0
);
 
DROP TABLE ldap_attr_mappings;
DROP SEQUENCE ldap_attr_mappings_id_seq;
CREATE TABLE ldap_attr_mappings
 (
        id serial NOT NULL PRIMARY KEY,
        oc_map_id INTEGER NOT NULL REFERENCES ldap_oc_mappings(id),
        name VARCHAR(255) NOT NULL,
        sel_expr VARCHAR(255) NOT NULL,
        sel_expr_u VARCHAR(255),
        from_tbls VARCHAR(255) NOT NULL,
        join_where VARCHAR(255),
        add_proc VARCHAR(255),
        delete_proc VARCHAR(255),
        param_order INT NOT NULL DEFAULT 0,
        expect_return INT NOT NULL DEFAULT 0
);
 
-- entries mapping: each entry must appear in this view, with a unique DN rooted at the database naming context
--      id              a unique number > 0 identifying the entry, this hack only works with max 9 tables/objectClasses
--      dn              the DN of the entry, in "pretty" form
--      oc_map_id       the "ldap_oc_mappings.id" of the main objectClass of this entry (view it as the structuralObjectClass)
--      parent          the "ldap_entries.id" of the parent of this objectClass; 0 if it is the "suffix" of the database
--      keyval          the value of the "keytbl.keycol" defined for this objectClass
 
-- the algorithm that generates the ids only allows 9 tables ... room for improvement
 
DROP VIEW ldap_entries;
CREATE VIEW ldap_entries AS 
  SELECT
    1 AS id,
    LOWER('dc=example,dc=com') AS dn,
    3 AS oc_map_id,
    0 AS parent,
    1 AS keyval
  UNION SELECT
    CAST(text(ldap_oc_mappings.id)||text(persons.id) AS INTEGER) AS id,
    text('cn='||persons.name||' '||persons.surname||',dc=example,dc=com') AS dn,
    ldap_oc_mappings.id AS oc_map_id,
    1 AS parent,
    persons.id AS keyval
    FROM persons JOIN ldap_oc_mappings ON ldap_oc_mappings.keytbl = 'persons'
  UNION SELECT
    CAST(text(ldap_oc_mappings.id)||text(documents.id) AS INTEGER) AS id,
    text('documentTitle='||documents.title||',dc=example,dc=com') AS dn,
    ldap_oc_mappings.id AS oc_map_id,
    1 AS parent,
    documents.id AS keyval
    FROM documents JOIN ldap_oc_mappings ON ldap_oc_mappings.keytbl = 'documents'
  ORDER BY id
;
 
-- Todo: turn this into a view
DROP TABLE ldap_entry_objclasses;
CREATE TABLE ldap_entry_objclasses
 (
        entry_id INTEGER NOT NULL,
        oc_name VARCHAR(64)
 );

testdb_metadata.sql :

-- mappings 
 
-- objectClass mappings: these may be viewed as structuralObjectClass, the ones that are used to decide how to build an entry
--      id              a unique number identifying the objectClass
--      name            the name of the objectClass; it MUST match the name of an objectClass that is loaded in slapd's schema
--      keytbl          the name of the table that is referenced for the primary key of an entry
--      keycol          the name of the column in "keytbl" that contains the primary key of an entry; the pair "keytbl.keycol" uniquely identifies an entry of objectClass "id"
--      create_proc     a procedure to create the entry
--      delete_proc     a procedure to delete the entry; it takes "keytbl.keycol" of the row to be deleted
--      expect_return   a bitmap that marks whether create_proc (1) and delete_proc (2) return a value or not
INSERT INTO ldap_oc_mappings (id,name,keytbl,keycol) VALUES (1,'inetOrgPerson','persons','id');
 
INSERT INTO ldap_oc_mappings (id,name,keytbl,keycol) VALUES (2,'document','documents','id');
 
INSERT INTO ldap_oc_mappings (id,name,keytbl,keycol) VALUES (3,'organization','institutes','id');
 
-- INSERT INTO ldap_oc_mappings (id,name,keytbl,keycol) VALUES (4,'referral','referrals','id');
 
-- attributeType mappings: describe how an attributeType for a certain objectClass maps to the SQL data.
--      id              a unique number identifying the attribute
--      oc_map_id       the value of "ldap_oc_mappings.id" that identifies the objectClass this attributeType is defined for
--      name            the name of the attributeType; it MUST match the name of an attributeType that is loaded in slapd's schema
--      sel_expr        the expression that is used to select this attribute (the "select <sel_expr> from ..." portion)
--      from_tbls       the expression that defines the table(s) this attribute is taken from (the "select ... from <from_tbls> where ..." portion)
--      join_where      the expression that defines the condition to select this attribute (the "select ... where <join_where> ..." portion)
--      add_proc        a procedure to insert the attribute; it takes the value of the attribute that is added, and the "keytbl.keycol" of the entry it is associated to
--      delete_proc     a procedure to delete the attribute; it takes the value of the attribute that is added, and the "keytbl.keycol" of the entry it is associated to
--      param_order     a mask that marks if the "keytbl.keycol" value comes before or after the value in add_proc (1) and delete_proc (2)
--      expect_return   a mask that marks whether add_proc (1) and delete_proc(2) are expected to return a value or not
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (1,1,'cn','text(persons.name||'' ''||persons.surname)','persons',NULL);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (2,1,'telephoneNumber','phones.phone','persons,phones','phones.pers_id=persons.id');
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (3,1,'givenName','persons.name','persons',NULL);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (4,1,'sn','persons.surname','persons',NULL);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (5,1,'userPassword','persons.password','persons','persons.password IS NOT NULL');
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (6,1,'seeAlso','seeAlso.dn','ldap_entries AS seeAlso,documents,authors_docs,persons','seeAlso.keyval=documents.id AND seeAlso.oc_map_id=2 AND authors_docs.doc_id=documents.id AND authors_docs.pers_id=persons.id');
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (7,2,'description','documents.abstract','documents',NULL);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (8,2,'documentTitle','documents.title','documents',NULL);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (9,2,'documentAuthor','documentAuthor.dn','ldap_entries AS documentAuthor,documents,authors_docs,persons','documentAuthor.keyval=persons.id AND documentAuthor.oc_map_id=1 AND authors_docs.doc_id=documents.id AND authors_docs.pers_id=persons.id');
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (10,2,'documentIdentifier','''document ''||text(documents.id)','documents',NULL);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (11,3,'o','institutes.name','institutes',NULL);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (12,3,'dc','lower(institutes.name)','institutes,ldap_entries AS dcObject,ldap_entry_objclasses AS auxObjectClass','institutes.id=dcObject.keyval AND dcObject.oc_map_id=3 AND dcObject.id=auxObjectClass.entry_id AND auxObjectClass.oc_name=''dcObject''');
 
-- INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (13,4,'ou','referrals.name','referrals',NULL);
 
-- INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (14,4,'ref','referrals.url','referrals',NULL);
 
INSERT INTO ldap_attr_mappings (id,oc_map_id,name,sel_expr,from_tbls,join_where) VALUES (15,1,'userCertificate','certs.cert','persons,certs','certs.pers_id=persons.id');
 
-- objectClass mapping: entries that have multiple objectClass instances are listed here with the objectClass name (view them as auxiliary objectClass)
--      entry_id        the "ldap_entries.id" of the entry this objectClass value must be added
--      oc_name         the name of the objectClass; it MUST match the name of an objectClass that is loaded in slapd's schema
INSERT INTO ldap_entry_objclasses (entry_id,oc_name) VALUES (11, 'dcObject');
INSERT INTO ldap_entry_objclasses (entry_id,oc_name) VALUES (13, 'pkiUser');
 
--INSERT INTO ldap_entry_objclasses (entry_id,oc_name) VALUES (7,'extensibleObject');

Als Nutzer

psql pgldapro pgldapro < testdb_create.sql
psql pgldapro pgldapro < testdb_data.sql
psql pgldapro pgldapro < backsql_create.sql
psql pgldapro pgldapro < testdb_metadata.sql

odbcinst -i -d -f /usr/share/psqlodbc/odbcinst.ini.template

erzeugt /etc/odbcinst.ini

/etc/odbc.ini :

[pgldapro]
Description         = Example for OpenLDAP's back-sql
Driver              = PostgreSQL Unicode
Trace               = No
Database            = pgldapro
Servername          = localhost
UserName            = pgldapro
Password            = villa
Port                = 5432
;Protocol            = 6.4
ReadOnly            = No
RowVersioning       = No
ShowSystemTables    = No
ShowOidColumn       = No
FakeOidIndex        = No
ConnSettings        =

ODBC:

isql pgldapro pgldapro
select * from persons;
quit

/etc/default/slapd :

SLAPD_CONF=/etc/ldap/slapd.conf

/etc/ldap/slapd.conf :

include         /etc/ldap/schema/core.schema
include         /etc/ldap/schema/cosine.schema
include         /etc/ldap/schema/nis.schema
include         /etc/ldap/schema/inetorgperson.schema
pidfile         /var/run/slapd/slapd.pid
argsfile        /var/run/slapd/slapd.args
loglevel        none
modulepath      /usr/lib/ldap
moduleload back_sql.la
moduleload back_monitor.la
sizelimit 500
tool-threads 1
access to attrs=userpassword
        by anonymous =x
access to *
        by * read
backend         sql
database        sql
readonly        on
suffix          "dc=example,dc=com"
rootdn          "cn=Manager,dc=example,dc=com"
rootpw          secret
dbname          pgldapro
dbuser          pgldapro
dbpasswd        test
upper_func              "upper"
strcast_func            "text"
concat_pattern  "?||?"
has_ldapinfo_dn_ru      no
database monitor

ldapsearch -x -W -b dc=example,dc=com -H ldap://localhost -D cn=Manager,dc=example,dc=com

slapd -d -1 -f /etc/ldap/slapd.conf

/etc/postgresql/*/*/postgresql.conf :

log_statement = 'all'
log_min_error_statement = error

Man scheint 2 x database sql nicht nutzen zu können. slapd startet, und der erste Zugriff funktioniert auch. Aber Zugriffe auf das jeweils andere suffix nicht.

• ~/openldap-2.4.23/servers/slapd/back-sql/rdbms_depend/README
• http://www.openldap.org/faq/data/cache/978.html