.TH LDAP_BIND 3 "RELEASEDATE" "OpenLDAP LDVERSION"
.\" $OpenLDAP$
-.\" Copyright 1998-2005 The OpenLDAP Foundation All Rights Reserved.
+.\" Copyright 1998-2006 The OpenLDAP Foundation All Rights Reserved.
.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
.SH NAME
-ldap_bind, ldap_bind_s, ldap_simple_bind, ldap_simple_bind_s, ldap_kerberos_bind_s, ldap_kerberos_bind1, ldap_kerberos_bind1_s, ldap_kerberos_bind2, ldap_kerberos_bind2_s, ldap_sasl_bind, ldap_sasl_bind_s, ldap_sasl_interactive_bind_s, ldap_parse_sasl_bind_result, ldap_unbind, ldap_unbind_s \- LDAP bind routines
+ldap_bind, ldap_bind_s, ldap_simple_bind, ldap_simple_bind_s, ldap_sasl_bind, ldap_sasl_bind_s, ldap_sasl_interactive_bind_s, ldap_parse_sasl_bind_result, ldap_unbind, ldap_unbind_s, ldap_unbind_ext, ldap_unbind_ext_s, ldap_set_rebind_proc \- LDAP bind routines
.SH LIBRARY
OpenLDAP LDAP (libldap, -lldap)
.SH SYNOPSIS
.LP
.BI "int ldap_simple_bind_s(LDAP *" ld ", const char *" who ", const char *" passwd ");"
.LP
-.BI "int ldap_kerberos_bind_s(LDAP *" ld ", const char *" who ");"
-.LP
-.BI "int ldap_kerberos_bind1(LDAP *" ld ", const char *" who ");"
-.LP
-.BI "int ldap_kerberos_bind1_s(LDAP *" ld ", const char *" who ");"
-.LP
-.BI "int ldap_kerberos_bind2(LDAP *" ld ", const char *" who ");"
-.LP
-.BI "int ldap_kerberos_bind2_s(LDAP *" ld ", const char *" who ");"
-.LP
.BI "int ldap_sasl_bind(LDAP *" ld ", const char *" dn ", const char *" mechanism ","
.RS
.BI "struct berval *" cred ", LDAPControl *" sctrls "[],"
.\" .ft
.\" LDAP *ld;
.\" int (*rebindproc)();
+.LP
+.BI "int ldap_unbind_ext(LDAP *" ld ", LDAPControl *" sctrls "[],"
+.RS
+.BI LDAPControl *" cctrls "[]);"
+.RE
+.LP
+.BI "int ldap_unbind_ext_s(LDAP *" ld ", LDAPControl *" sctrls "[],"
+.RS
+.BI LDAPControl *" cctrls "[]);"
+.RE
+.LP
+.BI "int ldap_set_rebind_proc (LDAP *" ld ", LDAP_REBIND_PROC *" ldap_proc ", void *" params);"
.SH DESCRIPTION
.LP
These routines provide various interfaces to the LDAP bind operation.
Version 2 of the LDAP protocol; it is optional for Version 3 but is
usually needed due to security considerations.
.LP
-There are many types of bind calls, providing simple authentication, Kerberos
-version 4 authentication, and general routines to do either one, as
-well as calls using
+There are three types of bind calls, ones providing simple authentication,
+ones providing SASL authentication, and general routines capable of doing
+either simple or SASL authentication.
+.LP
.B SASL
(Simple Authentication and Security Layer)
that can negotiate one of many different kinds of authentication.
call are provided. All routines
take \fIld\fP as their first parameter, as returned from
.BR ldap_init (3).
-.LP
-Kerberos version 4 has been superseded by Kerberos version 5, and the
-Kerberos version 4 support is only provided for backward compatibility. The
-SASL interfaces should be used for new applications. SASL provides
-a general interface for using Kerberos versions 4 and 5 and many other
-security systems.
-.LP
.SH SIMPLE AUTHENTICATION
The simplest form of the bind call is
.BR ldap_simple_bind_s() .
returning the message id of the request it sent. The result of the
operation can be obtained by a subsequent call to
.BR ldap_result (3).
-.SH KERBEROS AUTHENTICATION
-If the LDAP library and LDAP server being contacted have been
-compiled with the KERBEROS option defined,
-Kerberos version 4 authentication can be performed. As mentioned above,
-these Kerberos routines are provided only for backward compatibility.
-.LP
-These routines assume the user already
-has obtained a ticket granting ticket. The routines take \fIwho\fP, the DN
-of the entry to bind as. The
-.B ldap_kerberos_bind_s()
-routine does both steps of the Kerberos binding process synchronously. The
-.B ldap_kerberos_bind1_s()
-and
-.B ldap_kerberos_bind2_s()
-routines allow synchronous access to the
-individual steps, authenticating to the LDAP server and X.500 DSA, respectively.
-The
-.B ldap_kerberos_bind1()
-and
-.B ldap_kerberos_bind2()
-routines provide equivalent asynchronous access.
-.LP
-The
-.B ldap_kerberos_bind_s()
-routine is used to perform both authentication steps when contacting
-an LDAP server that is a gateway to an X.500 DSA. This kind of server
-configuration is only supported in the (very old) University of Michigan LDAP
-release. The OpenLDAP package no longer provides this gateway server.
-The standalone LDAP server provided in OpenLDAP may still be configured
-with Kerberos version 4 support, but it only requires one authentication
-step, and will return an error if the second step is attempted. Therefore,
-only the
-.B ldap_kerberos_bind1()
-routine or its synchronous equivalent may be used when contacting an
-OpenLDAP server.
.SH GENERAL AUTHENTICATION
The
.B ldap_bind()
routines can be used when the
authentication method to use needs to be selected at runtime. They
both take an extra \fImethod\fP parameter selecting the authentication
-method to use. It should be set to one of LDAP_AUTH_SIMPLE,
-LDAP_AUTH_KRBV41, or LDAP_AUTH_KRBV42, to select simple authentication,
-Kerberos authentication to the LDAP server, or Kerberos authentication
-to the X.500 DSA, respectively.
+method to use. It should be set to LDAP_AUTH_SIMPLE
+to select simple authentication.
.B ldap_bind()
returns the message id of the request it initiates.
.B ldap_bind_s()
returns an LDAP error indication.
.SH SASL AUTHENTICATION
Description still under construction...
+.SH REBINDING
+.LP
+The
+.B ldap_set_rebind_proc
+function() sets the process to use for binding when an operation returns a
+referral. This function is used when an application needs to bind to another server
+in order to follow a referral or search continuation reference.
+.LP
+The function takes \fIld\fP, the \fIrebind\fP function, and the \fIparams\fP,
+the arbitrary data like state information which the client might need to properly rebind.
+The LDAP_OPT_REFERRALS option in the \fIld\fP must be set to ON for the libraries
+to use the rebind function. Use the
+.BR ldap_set_option
+function to set the value.
+.LP
+The rebind function has the following syntax.
+.B int rebind_function (LDAP *ld, const char *url,int request,ber_int_t msgid);
+.LP
+The \fIld\fP parameter must be used by the application when binding to the
+referred server if the application wants the libraries to follow the referral.
+.LP
+The \fIurl\fP parameter points to the URL referral string received from the LDAP server.
+The LDAP application can use the
+.BR ldap_url_parse()
+.LP
+The \fIrequest\fP parameter specifies the request operation that generated the referral.
+function to parse the string into its components.
+.LP
+The \fImsgid\fP parameter specifies the message ID of the request generating the referral.
+.LP
+The LDAP libraries set all the parameters when they call the rebind function. The application
+should not attempt to free either the ld or the url structures in the rebind function.
+.LP
+The application must supply to the rebind function the required authentication information such as,
+user name, password, and certificates. The rebind function must use a synchronous bind method.
.SH UNBINDING
The
.B ldap_unbind()
.\" If anything but LDAP_SUCCESS is returned by the first call to
.\" the rebindproc, then referral processing is stopped and that error code
.\" is returned for the original LDAP operation.
+.LP
+The
+.B ldap_unbind_ext()
+and
+.B ldap_unbind_ext_s()
+allows the operations to sepicify controls.
.SH ERRORS
Asynchronous routines will return -1 in case of error, setting the
\fIld_errno\fP parameter of the \fIld\fP structure. Synchronous
routines return whatever \fIld_errno\fP is set to. See
.BR ldap_error (3)
for more information.
+.SH NOTES
+If an anonymous bind is sufficient for the application,the rebind process
+need not be provided. The LDAP libraries with the LDAP_OPT_REFERRALS option
+set to ON (default value) will automatically follow referrals using an anonymous bind.
+.LP
+If the application needs stronger authentication than an anonymous bind,
+you need to provide a rebind process for that authentication method.
+The bind method must be synchronous.
.SH SEE ALSO
.BR ldap (3),
.BR ldap_error (3),
.BR ldap_open (3),
+.BR ldap_set_option (3),
+.BR ldap_url_parse (3)
.B RFC 2222
(http://www.ietf.org),
.B Cyrus SASL
projects / openldap / blobdiff