openldap-technical

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9897 discussions

Developing client in c
by Michael Luich 11 Mar '09

11 Mar '09

Hello Everyone, I'm trying to develop my application in c. And since I've never done LDAP before I thought i'd do a test program to work out the how's of retrieving from an ldap directory. in this case I'm pulling a X509 certificate from the verisign directory. I successfully run the search and can retrieve the data, but the certificate;binary is incomplete. I've tried a number of different things but cannot seem to get the whole certificate. Below is the hard coded test program, and any help would be greatly appreciated! -- Michael Luich Stone's Rose mluich(a)stonesrose.com #include <stdio.h> #include "ldap.h" /* Specify the search criteria here. */ #define HOSTNAME "directory.verisign.com" #define PORTNUMBER 389 #define BASEDN "" #define SCOPE LDAP_SCOPE_SUBTREE #define FILTER "(mail=mluich(a)stonesrose.com)" char *encode_64 (char *message); int main (int argc, char **argv) { LDAP *ld; LDAPMessage *result, *e; char *dn, *cert; char **vals; int rc; LDAPMessage *res; char *a; int version, i; BerElement *ber; // /* Print out an informational message. */ // // printf ("Connecting to host %s at port %d...\n\n", HOSTNAME, PORTNUMBER); /* STEP 1: Get a handle to an LDAP connection and set any session preferences. */ if ((ld = ldap_init (HOSTNAME, PORTNUMBER)) == NULL) { perror ("ldap_init"); return (1); } /* Use the LDAP_OPT_PROTOCOL_VERSION session preference to specify that the client is an LDAPv3 client. */ version = LDAP_VERSION3; ldap_set_option (ld, LDAP_OPT_PROTOCOL_VERSION, &version); /* STEP 2: Bind to the server. In this example, the client binds anonymously to the server (no DN or credentials are specified). */ rc = ldap_simple_bind_s (ld, NULL, NULL); if (rc != LDAP_SUCCESS) { fprintf (stderr, "ldap_simple_bind_s: %s\n", ldap_err2string (rc)); return (1); } /* STEP 3: Perform the LDAP operations. In this example, a simple search operation is performed. The client iterates through each of the entries returned and prints out the DN of each entry. */ rc = ldap_search_ext_s (ld, BASEDN, SCOPE, FILTER, NULL, 0, NULL, NULL, NULL, 0, &result); if (rc != LDAP_SUCCESS) { fprintf (stderr, "ldap_search_ext_s: %s\n", ldap_err2string (rc)); return (1); } if ((vals = ldap_get_values_len (ld, result, "usercertificate;binary")) != NULL) { for (i = 0; vals[i] != NULL; i++) { printf ("%d - %s: %s\n", i, a, vals[i]); // if (!strcmp (a, "usercertificate;binary")) // { printf ("%s: %s\nlength: %d\n\n", a, vals[i], sizeof (vals[i])); encode_64 (vals[i]); // } } } else { fprintf (stderr, "ldap_get_values_len: %s\n", ldap_err2string (rc)); } ldap_value_free (vals); ldap_msgfree (result); /* STEP 4: Disconnect from the server. */ ldap_unbind (ld); return (0); } char * encode_64 (char *message) { #include <openssl/bio.h> #include <openssl/evp.h> BIO *bio, *b64; //char message[] = "Hello World \n"; b64 = BIO_new (BIO_f_base64 ()); bio = BIO_new_fp (stdout, BIO_NOCLOSE); bio = BIO_push (b64, bio); BIO_write (bio, message, strlen (message)); BIO_flush (bio); BIO_free_all (bio); }

2 1

Nway multimaster sync having weird functionality
by Mathew Rowley 11 Mar '09

11 Mar '09

I am experiencing some really strange behavior with nway multimaster. Does anyone know why this would be happening? I have 2 boxes set up to sync, called rsa01, rsa02 If I create ou=groups,dc=comcast,dc=com¹ on rsa02, it will create it on rsa01 If I create cn=test,ou=groups,dc=comcast,dc=com¹ on rsa02 it will NOT create on rsa01 If I delete ou=groups,dc=comcast,dc=com¹ on rsa02, it will delete on rsa01 If I create anything on rsa01, it will NOT create on rsa02 I have the sync set up for searchBase¹ set to dc=comcast,dc=com. Here is the olcSyncrepl configuration (for both boxes): dn: olcDatabase={1}bdb,cn=config objectClass: olcDatabaseConfig objectClass: olcbdbConfig olcDatabase: {1}bdb olcSuffix: dc=comcast,dc=com olcDbDirectory: /usr/var/openldap-data/ olcRootDN: cn=Manager,dc=comcast,dc=com olcRootPW: {SSHA}kJTEcfOmPf7fKv71AtxDjlUZNPqN9pIT olcLimits: dn.exact="cn=Manager,dc=comcast,dc=com" time.soft=unlimited time.hard=unlimited size.soft=unlimited size.hard=unlimited olcSyncRepl: rid=004 provider=ldap://10.252.152.76 binddn="cn=Manager,dc=comcast,dc=com" bindmethod=simple credentials="test" searchbase="dc=comcast,dc=com" type=refreshOnly interval=00:00:00:10 retry="5 5 300 5" timeout=1 olcSyncRepl: rid=005 provider=ldap://10.252.152.77 binddn="cn=Manager,dc=comcast,dc=com" bindmethod=simple credentials="test" searchbase="dc=comcast,dc=com" type=refreshOnly interval=00:00:00:10 retry="5 5 300 5" timeout=1 olcMirrorMode: TRUE dn: olcOverlay=syncprov,olcDatabase={1}bdb,cn=config changetype: add objectClass: olcOverlayConfig objectClass: olcSyncProvConfig olcOverlay: syncprov -- MAT

2 4

ldap-client connection to AD - LdapErr: DSID-0C090627,
by Santosh Kumar 10 Mar '09

10 Mar '09

Trying to query Active Directory  via command line for searching all Please let me know what this error refers to./ldapsearch  -h 10.10.10.50 -b "ou=users,DC=SFBAY,DC=tech,DC=com"  -s sub "objectclass=*"# extended LDIF## LDAPv3# base <ou=users,DC=SFBAY,DC=keypairtech,DC=com> with scope subtree# filter: objectclass=*# requesting: ALL## search resultsearch: 2result: 1 Operations errortext: 00000000: LdapErr: DSID-0C090627, comment: In order to perform this ope ration a successful bind must be completed on the connection., data 0, vece# numResponses: 1 i'm  looking to extract -b option and -D from AD Please if anyone is aware let me know.ThanksSantosh

5 8

Mirrormode problem
by Sergio Cioban Filho 10 Mar '09

10 Mar '09

Hi all, I have configured two openldap servers with mirrormode, but no have sync at servers... Any idea about the problem? My configuration files: Server1: serverID 1 syncrepl rid=001 provider=ldap://192.168.170.36:389/ bindmethod=simple binddn="cn=user,dc=teste,dc=com,dc=br" credentials="xxxxx" searchbase="dc=teste,dc=com,dc=br" schemachecking=on type=refreshAndPersist interval=00:00:00:10 retry="5 5 300 5" timeout=1 mirrormode on mirrormode on overlay syncprov syncprov-checkpoint 100 10 syncprov-sessionlog 100 Server2: serverID 2 syncrepl rid=001 provider=ldap://192.168.170.25:389/ bindmethod=simple binddn="cn=user,dc=teste,dc=com,dc=br" credentials="xxxxx" searchbase="dc=teste,dc=com,dc=br" schemachecking=on type=refreshAndPersist interval=00:00:00:10 retry="5 5 300 5" timeout=1 mirrormode on mirrormode on overlay syncprov syncprov-checkpoint 100 10 syncprov-sessionlog 100 ** Sorry for my poor english. Thanks, Regards, --- Sérgio Cioban Filho | Tecnólogo em Gestão de TI | Linux Professional Institute Certified - Level 1 ------------------------------------------------------------ | Linux - Servidores - Firewall - VPN | Virtualização - VoIP - ShellScript - C - PHP | http://cioban.googlepages.com | +55 48 9989-8733 ------------------------------------------------------------ ..:: Seja livre, use LiNuX!! ::.. ------------------------------------------------------------ Vendo GOL G3 PLUS 1.0 8V 4P 2002 - Branco - COMPLETÍSSIMO - Só R$ 18.500,00 http://cioban.googlepages.com/vendogolg38v

1 0

automatic versioning of objects?
by Karsten Kankowski 09 Mar '09

09 Mar '09

Hello dear wise guys :-) Is there any nice feature at Oo-LDAP implemented to get the information if an object is changed; something like a internal version number...??? We would like to use LDAP for storing complex configuration data which can have dependencies. For that a version number for all objects is necessary. Unfortunately these changes must be done also in a safe way which means that a version change must be done in a “atomic operation”. A internal incrementing by the LDAP server seemed to me a quite more simple solution than to try this to handle via the ( say here ~ 6000 concurrent ) clients. By the way: Do anyone implement something like a LDAP server based sequence number which can be queried??? Thanks a lot for your hints... and best regards Karsten (Sorry for the bad English ;-() The information in this e-mail is confidential. The contents may not be disclosed or used by anyone other then the addressee. Access to this e-mail by anyone else is unauthorised. If you are not the intended recipient, please notify Airbus immediately and delete this e-mail. Airbus cannot accept any responsibility for the accuracy or completeness of this e-mail as it has been sent over public networks. If you have any concerns over the content of this message or its Accuracy or Integrity, please contact Airbus immediately. All outgoing e-mails from Airbus are checked using regularly updated virus scanning software but you should take whatever measures you deem to be appropriate to ensure that this message and any attachments are virus free.

2 1

Issues when changing LDAP password
by Gustavo Mendes de Carvalho 09 Mar '09

09 Mar '09

Hi there, I'm running an LDAP server version 2.3.39 and I'm using ppolicy to force users in some specific things, but I'm having some issue when I try to change my user's password with passwd command. Here's the output screen [user1@cliserv ~]$ ssh ldapclisrv user1@ldapclisrv's password: Your LDAP password will expire in 10 days. Last login: Wed Mar 4 17:42:18 2009 from cliserv [user1@ldapclisrv ~]$ [user1@ldapclisrv ~]$ [user1@ldapclisrv ~]$ passwd Changing password for user user1. Enter login(LDAP) password: New UNIX password: Retype new UNIX password: LDAP password information update failed: Can't contact LDAP server Must supply old password to be changed as well as new one passwd: Permission denied [user1@ldapclisrv ~]$ As you can see, I can login using LDAP ID, and I can change user1 password if I use ldappasswd, entering all ldap information, but I would like to make it simpler. Does anybody has any idea ? -- Gustavo Mendes de Carvalho e-mail: gmcarvalho(a)gmail.com

2 1

Multi-master or MirrorMode
by Sergio Cioban Filho 09 Mar '09

09 Mar '09

Hello all, I've read about ldap replication and I changed my replication from slurp to syncrepl. I want configure an failover Ldap Server, but I've read that in the multi-master replication configuration, I'll have problems with data consistency, is is true? When I'll have data inconsistency? In MIrrorMode, can I have much of two servers? What is the limit number of servers (nodes)? What is the better configuration for failover (Without a hardware proxies/load-balancing or dedicated proxy software)? ** Sorry for my poor english... ;) Thanks Regards, --- Sérgio Cioban Filho | Tecnólogo em Gestão de TI | Linux Professional Institute Certified - Level 1 ------------------------------------------------------------ | Linux - Servidores - Firewall - VPN | Virtualização - VoIP - ShellScript - C - PHP | http://cioban.googlepages.com | +55 48 9989-8733 ------------------------------------------------------------ ..:: Seja livre, use LiNuX!! ::.. ------------------------------------------------------------

1 0

Multi-master or MirrorMode
by Sergio Cioban Filho 07 Mar '09

07 Mar '09

Hi all, I've read about ldap replication and I changed my replication from slurp to syncrepl. I want configure an failover Ldap Server, but I've read that in the multi-master replication configuration, I'll have problems with data consistency, is is true? When I'll have data inconsistency? In MIrrorMode, can I have much of two servers? What is the limit number of servers (nodes)? What is the better configuration for failover (Without a hardware proxies/load-balancing or dedicated proxy software)? ** Sorry for my poor english... ;) Thanks Regards, --- Sérgio Cioban Filho | Tecnólogo em Gestão de TI | Linux Professional Institute Certified - Level 1 ------------------------------------------------------------ | Linux - Servidores - Firewall - VPN | Virtualização - VoIP - ShellScript - C - PHP | http://cioban.googlepages.com | +55 48 9989-8733 ------------------------------------------------------------ ..:: Seja livre, use LiNuX!! ::.. ------------------------------------------------------------

1 0

TLSVerifyClient => no login possible
by Sebastian Reinhardt 06 Mar '09

06 Mar '09

Hello, I have configured an openSUSE 11.0 (x86_64) with openldap- server. Also the TLS is activated. All clients are set to "TLS_REQCERT demand" and is working. Then I created client certificates by using the servers Yast2 CA- management. I copied teh client certificates and also the servers "cacert" into the "/etc/openldap/" directory on client computer. With "TLSVerifyClient allow" clients can login, but if I activate the "TLSVerifyClient demand" option in servers slapd.conf no user can perform an login and it causes errors in /var/log/messages: ----------------/var/log/messages---------------- Feb 22 18:50:01 lmvserver slapd[7093]: slap_listener_activate(8): Feb 22 18:50:01 lmvserver slapd[7093]: >>> slap_listener(ldap://) Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14) Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14): got connid=107 Feb 22 18:50:01 lmvserver slapd[7093]: connection_read(14): checking for input on id=107 Feb 22 18:50:01 lmvserver slapd[7093]: conn=107 op=0 do_extended Feb 22 18:50:01 lmvserver slapd[7093]: do_extended: oid=1.3.6.1.4.1.1466.20037 Feb 22 18:50:01 lmvserver slapd[7093]: send_ldap_extended: err=0 oid= len=0 Feb 22 18:50:01 lmvserver slapd[7093]: send_ldap_response: msgid=1 tag=120 err=0 Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14) Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14): got connid=107 Feb 22 18:50:01 lmvserver slapd[7093]: connection_read(14): checking for input on id=107 Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14) Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14): got connid=107 Feb 22 18:50:01 lmvserver slapd[7093]: connection_read(14): checking for input on id=107 Feb 22 18:50:01 lmvserver slapd[7093]: connection_read(14): TLS accept failure error=-1 id=107, closing Feb 22 18:50:01 lmvserver slapd[7093]: connection_closing: readying conn=107 sd=14 for close Feb 22 18:50:01 lmvserver slapd[7093]: connection_close: conn=107 sd=14 Feb 22 18:50:01 lmvserver slapd[7093]: slap_listener_activate(8): Feb 22 18:50:01 lmvserver slapd[7093]: >>> slap_listener(ldap://) Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14) Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14): got connid=108 Feb 22 18:50:01 lmvserver slapd[7093]: connection_read(14): checking for input on id=108 Feb 22 18:50:01 lmvserver slapd[7093]: conn=108 op=0 do_extended Feb 22 18:50:01 lmvserver slapd[7093]: do_extended: oid=1.3.6.1.4.1.1466.20037 Feb 22 18:50:01 lmvserver slapd[7093]: send_ldap_extended: err=0 oid= len=0 Feb 22 18:50:01 lmvserver slapd[7093]: send_ldap_response: msgid=1 tag=120 err=0 Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14) Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14): got connid=108 Feb 22 18:50:01 lmvserver slapd[7093]: connection_read(14): checking for input on id=108 Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14) Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14): got connid=108 Feb 22 18:50:01 lmvserver slapd[7093]: connection_read(14): checking for input on id=108 Feb 22 18:50:01 lmvserver slapd[7093]: connection_read(14): TLS accept failure error=-1 id=108, closing Feb 22 18:50:01 lmvserver slapd[7093]: connection_closing: readying conn=108 sd=14 for close Feb 22 18:50:01 lmvserver slapd[7093]: connection_close: conn=108 sd=14 Feb 22 18:50:01 lmvserver slapd[7093]: slap_listener_activate(8): Feb 22 18:50:01 lmvserver slapd[7093]: >>> slap_listener(ldap://) Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14) Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14): got connid=109 Feb 22 18:50:01 lmvserver slapd[7093]: connection_read(14): checking for input on id=109 Feb 22 18:50:01 lmvserver slapd[7093]: conn=109 op=0 do_extended Feb 22 18:50:01 lmvserver slapd[7093]: do_extended: oid=1.3.6.1.4.1.1466.20037 Feb 22 18:50:01 lmvserver slapd[7093]: send_ldap_extended: err=0 oid= len=0 Feb 22 18:50:01 lmvserver slapd[7093]: send_ldap_response: msgid=1 tag=120 err=0 Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14) Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14): got connid=109 Feb 22 18:50:01 lmvserver slapd[7093]: connection_read(14): checking for input on id=109 Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14) Feb 22 18:50:01 lmvserver slapd[7093]: connection_get(14): got connid=109 Feb 22 18:50:01 lmvserver slapd[7093]: connection_read(14): checking for input on id=109 Feb 22 18:50:01 lmvserver slapd[7093]: connection_read(14): TLS accept failure error=-1 id=109, closing Feb 22 18:50:01 lmvserver slapd[7093]: connection_closing: readying conn=109 sd=14 for close Feb 22 18:50:01 lmvserver slapd[7093]: connection_close: conn=109 sd=14 ----------------/var/log/messages---------------- slapd.conf: ---------------/etc/openldap/slapd.conf-------- # # See slapd.conf(5) for details on configuration options. # This file should NOT be world readable. # include /etc/openldap/schema/core.schema include /etc/openldap/schema/cosine.schema include /etc/openldap/schema/inetorgperson.schema include /etc/openldap/schema/yast.schema include /etc/openldap/schema/misc.schema include /etc/openldap/schema/collective.schema include /etc/openldap/schema/dnszone.schema include /etc/openldap/schema/duaconf.schema include /etc/openldap/schema/dyngroup.schema include /etc/openldap/schema/samba3.schema include /etc/openldap/schema/openldap.schema include /etc/openldap/schema/nis.schema # Define global ACLs to disable default read access. pidfile /var/run/slapd/slapd.pid argsfile /var/run/slapd/slapd.args # Directives needed to implement policy: access to dn.base="" by * read access to dn.base="cn=Subschema" by * read access to attrs=userPassword,userPKCS12 by self write by * auth access to attrs=shadowLastChange by self write by * read access to * by * read ####################################################################### # BDB database definitions ####################################################################### loglevel 5 TLSCertificateFile /etc/openldap/servercert.pem TLSCACertificateFile /etc/openldap/cacert.pem TLSCertificateKeyFile /etc/openldap/serverkey.pem TLSVerifyClient demand database bdb suffix "dc=lmv,dc=lmv" rootdn "cn=ldaproot,dc=lmv,dc=lmv" rootpw "???????" directory /mnt/lvm/ldap/ checkpoint 1024 5 cachesize 10000 index objectClass,uidNumber,gidNumber eq index member,mail eq,pres index cn,displayname,uid,sn,givenname sub,eq,pres database monitor ---------------/etc/openldap/slapd.conf-------- ldap.conf (client): --------------/etc/openldap/slapd.conf--------- # # LDAP Defaults # #SIZELIMIT 12 #TIMELIMIT 15 #DEREF never TLS_CACERT /etc/openldap/cacert.pem TLS_CERT /etc/openldap/clientcert_205.pem TLS_KEY /etc/openldap/clientkey_205.pem TLS_REQCERT demand host 192.168.0.201 base dc=lmv,dc=lmv --------------/etc/openldap/slapd.conf--------- What is wrong? The clients certificate "common name" is set to the clients hostname. Is this ok? -- Mit freundlichen Grüßen Sebastian Reinhardt

3 17

openldap client configuration to connect to AD
by Santosh Kumar 06 Mar '09

06 Mar '09

Hi  Trying to configure ldap client connection for AD,  in the ldap.conf , what configuration needs to be carried, like is it required for PAM & NSS configuration .tried to test in ldap command as initial test, but getting the below error, ./ldapsearch -x -W -h 10.10.10.10 -b "CN=testuser,OU=Users,OU=KeyPairIN,OU=KeyPair,DC=keypair,DC=internal" -S subEnter LDAP Password:  ***   ldap_sasl_bind(SIMPLE): Can't contact LDAP server (-1)Please do know what needs to be included ThanksSantosh Sr Software developer

3 5

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