1999-09-09 03:06:24 +08:00
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/* $OpenLDAP$ */
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1999-06-29 06:19:21 +08:00
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/*
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* Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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/*
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* BindRequest ::= SEQUENCE {
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* version INTEGER,
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* name DistinguishedName, -- who
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* authentication CHOICE {
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* simple [0] OCTET STRING -- passwd
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#ifdef HAVE_KERBEROS
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* krbv42ldap [1] OCTET STRING
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* krbv42dsa [2] OCTET STRING
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#endif
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* sasl [3] SaslCredentials -- LDAPv3
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* }
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* }
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*
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* BindResponse ::= SEQUENCE {
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* COMPONENTS OF LDAPResult,
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* serverSaslCreds OCTET STRING OPTIONAL -- LDAPv3
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* }
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*
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/socket.h>
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#include <ac/string.h>
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#include <ac/time.h>
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#include "ldap-int.h"
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/*
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* ldap_sasl_bind - bind to the ldap server (and X.500). The dn, mechanism, and
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* credentials of the entry to which to bind are supplied. The message id
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* of the request initiated is provided upon successful (LDAP_SUCCESS) return.
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*
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* Example:
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* ldap_sasl_bind( ld, "cn=manager, o=university of michigan, c=us",
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* "mechanism", "secret", NULL, NULL, &msgid )
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*/
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int
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ldap_sasl_bind(
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LDAP *ld,
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LDAP_CONST char *dn,
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LDAP_CONST char *mechanism,
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struct berval *cred,
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LDAPControl **sctrls,
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LDAPControl **cctrls,
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int *msgidp )
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{
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BerElement *ber;
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int rc;
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Debug( LDAP_DEBUG_TRACE, "ldap_sasl_bind\n", 0, 0, 0 );
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assert( ld != NULL );
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assert( LDAP_VALID( ld ) );
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assert( msgidp != NULL );
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if( msgidp == NULL ) {
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ld->ld_errno = LDAP_PARAM_ERROR;
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return ld->ld_errno;
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}
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1999-12-17 11:27:16 +08:00
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if( mechanism == LDAP_SASL_SIMPLE ) {
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if( dn == NULL && cred != NULL ) {
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/* use default binddn */
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dn = ld->ld_defbinddn;
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}
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} else if( ld->ld_version < LDAP_VERSION3 ) {
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1999-06-29 06:19:21 +08:00
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ld->ld_errno = LDAP_NOT_SUPPORTED;
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return ld->ld_errno;
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}
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1999-12-17 11:27:16 +08:00
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if ( dn == NULL ) {
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1999-06-29 06:19:21 +08:00
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dn = "";
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1999-12-17 11:27:16 +08:00
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}
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1999-06-29 06:19:21 +08:00
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/* create a message to send */
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if ( (ber = ldap_alloc_ber_with_options( ld )) == NULL ) {
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ld->ld_errno = LDAP_NO_MEMORY;
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return ld->ld_errno;
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}
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assert( BER_VALID( ber ) );
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if( mechanism == LDAP_SASL_SIMPLE ) {
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/* simple bind */
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rc = ber_printf( ber, "{it{istO}" /*}*/,
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++ld->ld_msgid, LDAP_REQ_BIND,
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ld->ld_version, dn, LDAP_AUTH_SIMPLE,
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cred );
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} else if ( cred == NULL ) {
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/* SASL bind w/o creditials */
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rc = ber_printf( ber, "{it{ist{s}}" /*}*/,
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++ld->ld_msgid, LDAP_REQ_BIND,
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ld->ld_version, dn, LDAP_AUTH_SASL,
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mechanism );
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} else {
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/* SASL bind w/ creditials */
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rc = ber_printf( ber, "{it{ist{sO}}" /*}*/,
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++ld->ld_msgid, LDAP_REQ_BIND,
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ld->ld_version, dn, LDAP_AUTH_SASL,
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mechanism, cred );
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}
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if( rc == -1 ) {
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ld->ld_errno = LDAP_ENCODING_ERROR;
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ber_free( ber, 1 );
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return( -1 );
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}
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/* Put Server Controls */
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if( ldap_int_put_controls( ld, sctrls, ber ) != LDAP_SUCCESS ) {
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ber_free( ber, 1 );
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return ld->ld_errno;
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}
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if ( ber_printf( ber, /*{*/ "}" ) == -1 ) {
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ld->ld_errno = LDAP_ENCODING_ERROR;
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ber_free( ber, 1 );
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return ld->ld_errno;
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}
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#ifndef LDAP_NOCACHE
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if ( ld->ld_cache != NULL ) {
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ldap_flush_cache( ld );
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}
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#endif /* !LDAP_NOCACHE */
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/* send the message */
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*msgidp = ldap_send_initial_request( ld, LDAP_REQ_BIND, dn, ber );
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if(*msgidp < 0)
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return ld->ld_errno;
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return LDAP_SUCCESS;
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}
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int
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ldap_sasl_bind_s(
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LDAP *ld,
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LDAP_CONST char *dn,
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LDAP_CONST char *mechanism,
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struct berval *cred,
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LDAPControl **sctrls,
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LDAPControl **cctrls,
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struct berval **servercredp )
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{
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int rc, msgid;
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LDAPMessage *result;
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struct berval *scredp = NULL;
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Debug( LDAP_DEBUG_TRACE, "ldap_sasl_bind_s\n", 0, 0, 0 );
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/* do a quick !LDAPv3 check... ldap_sasl_bind will do the rest. */
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if( servercredp != NULL ) {
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if (ld->ld_version < LDAP_VERSION3) {
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ld->ld_errno = LDAP_NOT_SUPPORTED;
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return ld->ld_errno;
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}
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*servercredp = NULL;
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}
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rc = ldap_sasl_bind( ld, dn, mechanism, cred, sctrls, cctrls, &msgid );
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if ( rc != LDAP_SUCCESS ) {
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return( rc );
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}
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if ( ldap_result( ld, msgid, 1, NULL, &result ) == -1 ) {
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return( ld->ld_errno ); /* ldap_result sets ld_errno */
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}
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/* parse the results */
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scredp = NULL;
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if( servercredp != NULL ) {
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rc = ldap_parse_sasl_bind_result( ld, result, &scredp, 0 );
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}
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if( rc != LDAP_SUCCESS ) {
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ldap_msgfree( result );
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return( rc );
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}
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rc = ldap_result2error( ld, result, 1 );
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if( rc == LDAP_SUCCESS ) {
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if( servercredp != NULL ) {
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*servercredp = scredp;
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}
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} else if (scredp != NULL ) {
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ber_bvfree(scredp);
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}
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return rc;
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}
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/*
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2000-01-02 09:21:25 +08:00
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* Parse BindResponse:
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*
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* BindResponse ::= [APPLICATION 1] SEQUENCE {
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* COMPONENTS OF LDAPResult,
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* serverSaslCreds [7] OCTET STRING OPTIONAL }
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*
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* LDAPResult ::= SEQUENCE {
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* resultCode ENUMERATED,
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* matchedDN LDAPDN,
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* errorMessage LDAPString,
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* referral [3] Referral OPTIONAL }
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*/
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1999-06-29 06:19:21 +08:00
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int
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ldap_parse_sasl_bind_result(
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LDAP *ld,
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LDAPMessage *res,
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struct berval **servercredp,
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int freeit )
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{
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ber_int_t errcode;
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struct berval* scred;
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ber_tag_t tag;
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BerElement *ber;
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Debug( LDAP_DEBUG_TRACE, "ldap_parse_sasl_bind_result\n", 0, 0, 0 );
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assert( ld != NULL );
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assert( LDAP_VALID( ld ) );
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assert( res != NULL );
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if ( ld == NULL || res == NULL ) {
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return LDAP_PARAM_ERROR;
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}
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1999-12-12 13:02:03 +08:00
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if( servercredp != NULL ) {
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1999-06-29 06:19:21 +08:00
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if( ld->ld_version < LDAP_VERSION2 ) {
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return LDAP_NOT_SUPPORTED;
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}
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*servercredp = NULL;
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}
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1999-12-12 13:02:03 +08:00
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if( res->lm_msgtype != LDAP_RES_BIND ) {
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1999-06-29 06:19:21 +08:00
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ld->ld_errno = LDAP_PARAM_ERROR;
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return ld->ld_errno;
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}
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scred = NULL;
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if ( ld->ld_error ) {
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LDAP_FREE( ld->ld_error );
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ld->ld_error = NULL;
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}
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if ( ld->ld_matched ) {
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LDAP_FREE( ld->ld_matched );
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ld->ld_matched = NULL;
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}
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/* parse results */
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ber = ber_dup( res->lm_ber );
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1999-12-12 11:16:46 +08:00
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if( ber == NULL ) {
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ld->ld_errno = LDAP_NO_MEMORY;
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return ld->ld_errno;
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}
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1999-06-29 06:19:21 +08:00
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if ( ld->ld_version < LDAP_VERSION2 ) {
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tag = ber_scanf( ber, "{ia}",
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&errcode, &ld->ld_error );
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1999-12-12 11:16:46 +08:00
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if( tag == LBER_ERROR ) {
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ber_free( ber, 0 );
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ld->ld_errno = LDAP_DECODING_ERROR;
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return ld->ld_errno;
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}
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1999-06-29 06:19:21 +08:00
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} else {
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ber_len_t len;
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tag = ber_scanf( ber, "{iaa" /*}*/,
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&errcode, &ld->ld_matched, &ld->ld_error );
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1999-12-12 11:16:46 +08:00
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if( tag == LBER_ERROR ) {
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ber_free( ber, 0 );
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ld->ld_errno = LDAP_DECODING_ERROR;
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return ld->ld_errno;
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1999-06-29 06:19:21 +08:00
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}
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1999-12-12 11:16:46 +08:00
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tag = ber_peek_tag(ber, &len);
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1999-06-29 06:19:21 +08:00
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if( tag == LDAP_TAG_REFERRAL ) {
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/* skip 'em */
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1999-12-12 11:16:46 +08:00
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if( ber_scanf( ber, "x" ) == LBER_ERROR ) {
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ber_free( ber, 0 );
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ld->ld_errno = LDAP_DECODING_ERROR;
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return ld->ld_errno;
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1999-06-29 06:19:21 +08:00
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}
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1999-12-12 11:16:46 +08:00
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tag = ber_peek_tag(ber, &len);
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1999-06-29 06:19:21 +08:00
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}
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if( tag == LDAP_TAG_SASL_RES_CREDS ) {
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1999-12-12 11:16:46 +08:00
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if( ber_scanf( ber, "O", &scred ) == LBER_ERROR ) {
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ber_free( ber, 0 );
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ld->ld_errno = LDAP_DECODING_ERROR;
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return ld->ld_errno;
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}
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1999-06-29 06:19:21 +08:00
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}
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}
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1999-12-12 11:16:46 +08:00
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ber_free( ber, 0 );
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1999-06-29 06:19:21 +08:00
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1999-12-12 11:16:46 +08:00
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if ( servercredp != NULL ) {
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1999-06-29 06:19:21 +08:00
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*servercredp = scred;
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} else if ( scred != NULL ) {
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ber_bvfree( scred );
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}
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1999-12-12 11:16:46 +08:00
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ld->ld_errno = errcode;
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1999-06-29 06:19:21 +08:00
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if ( freeit ) {
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ldap_msgfree( res );
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}
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return( ld->ld_errno );
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}
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2000-01-02 09:21:25 +08:00
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#ifdef HAVE_CYRUS_SASL
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/*
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* Various Cyrus SASL related stuff.
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*/
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static int sasl_setup( Sockbuf *sb, void *arg );
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static int sasl_remove( Sockbuf *sb );
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static ber_slen_t sasl_read( Sockbuf *sb, void *buf, ber_len_t len );
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static ber_slen_t sasl_write( Sockbuf *sb, void *buf, ber_len_t len );
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static int sasl_close( Sockbuf *sb );
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static Sockbuf_IO sasl_io=
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{
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sasl_setup,
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sasl_remove,
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sasl_read,
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sasl_write,
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sasl_close
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};
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#define HAS_SASL( sb ) ((sb)->sb_io==&sasl_io)
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static char *
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array2str( char **a )
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{
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char *s, **v, *p;
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int len = 0;
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|
|
|
|
|
|
for ( v = a; *v != NULL; v++ ) {
|
|
|
|
len += strlen( *v ) + 1; /* for a space */
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( len == 0 ) {
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
s = LDAP_MALLOC ( len ); /* last space holds \0 */
|
|
|
|
|
|
|
|
if ( s == NULL ) {
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
p = s;
|
|
|
|
for ( v = a; *v != NULL; v++ ) {
|
|
|
|
int len;
|
|
|
|
|
|
|
|
if ( v != a ) {
|
|
|
|
strncpy( p, " ", 1 );
|
|
|
|
++p;
|
|
|
|
}
|
|
|
|
len = strlen( *v );
|
|
|
|
strncpy( p, *v, len );
|
|
|
|
p += len;
|
|
|
|
}
|
|
|
|
|
|
|
|
*p = '\0';
|
|
|
|
|
|
|
|
return s;
|
|
|
|
}
|
|
|
|
|
|
|
|
int ldap_pvt_sasl_init( void )
|
|
|
|
{
|
|
|
|
/* XXX not threadsafe */
|
|
|
|
static int sasl_initialized = 0;
|
|
|
|
|
|
|
|
if ( sasl_initialized ) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
#ifndef CSRIMALLOC
|
|
|
|
sasl_set_alloc( ber_memalloc, ber_memcalloc, ber_memrealloc, ber_memfree );
|
|
|
|
#endif /* CSRIMALLOC */
|
|
|
|
|
|
|
|
if ( sasl_client_init( NULL ) == SASL_OK ) {
|
|
|
|
sasl_initialized = 1;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
int ldap_pvt_sasl_install( Sockbuf *sb, void *ctx_arg )
|
|
|
|
{
|
|
|
|
/* don't install the stuff unless security has been negotiated */
|
|
|
|
|
|
|
|
if ( !HAS_SASL( sb ) ) {
|
|
|
|
ber_pvt_sb_clear_io( sb );
|
|
|
|
ber_pvt_sb_set_io( sb, &sasl_io, ctx_arg );
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int sasl_setup( Sockbuf *sb, void *arg )
|
|
|
|
{
|
|
|
|
sb->sb_iodata = arg;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int sasl_remove( Sockbuf *sb )
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static ber_slen_t sasl_read( Sockbuf *sb, void *buf, ber_len_t buflen )
|
|
|
|
{
|
|
|
|
char *recv_tok;
|
|
|
|
unsigned recv_tok_len;
|
|
|
|
sasl_conn_t *conn = (sasl_conn_t *)sb->sb_iodata;
|
|
|
|
|
|
|
|
if ((ber_pvt_sb_io_tcp.sbi_read)( sb, buf, buflen ) != buflen ) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( sasl_decode( conn, buf, buflen, &recv_tok, &recv_tok_len ) != SASL_OK ) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( recv_tok_len > buflen ) {
|
|
|
|
LDAP_FREE( recv_tok );
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
memcpy( buf, recv_tok, recv_tok_len );
|
|
|
|
|
|
|
|
LDAP_FREE( recv_tok );
|
|
|
|
|
|
|
|
return recv_tok_len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static ber_slen_t sasl_write( Sockbuf *sb, void *buf, ber_len_t len )
|
|
|
|
{
|
|
|
|
char *wrapped_tok;
|
|
|
|
unsigned wrapped_tok_len;
|
|
|
|
sasl_conn_t *conn = (sasl_conn_t *)sb->sb_iodata;
|
|
|
|
|
|
|
|
if ( sasl_encode( conn, (const char *)buf, len,
|
|
|
|
&wrapped_tok, &wrapped_tok_len ) != SASL_OK ) {
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((ber_pvt_sb_io_tcp.sbi_write)( sb, wrapped_tok, wrapped_tok_len ) != wrapped_tok_len ) {
|
|
|
|
LDAP_FREE( wrapped_tok );
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
LDAP_FREE( wrapped_tok );
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int sasl_close( Sockbuf *sb )
|
|
|
|
{
|
|
|
|
(ber_pvt_sb_io_tcp.sbi_close)( sb );
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
ldap_pvt_sasl_err2ldap( int saslerr )
|
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
switch (saslerr) {
|
|
|
|
case SASL_CONTINUE:
|
|
|
|
rc = LDAP_SASL_BIND_IN_PROGRESS;
|
|
|
|
break;
|
|
|
|
case SASL_OK:
|
|
|
|
rc = LDAP_SUCCESS;
|
|
|
|
break;
|
|
|
|
case SASL_FAIL:
|
|
|
|
rc = LDAP_OPERATIONS_ERROR;
|
|
|
|
break;
|
|
|
|
case SASL_NOMEM:
|
|
|
|
rc = LDAP_NO_MEMORY;
|
|
|
|
break;
|
|
|
|
case SASL_NOMECH:
|
|
|
|
rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
|
|
|
|
break;
|
|
|
|
case SASL_BADAUTH:
|
|
|
|
rc = LDAP_INVALID_CREDENTIALS;
|
|
|
|
break;
|
|
|
|
case SASL_NOAUTHZ:
|
|
|
|
rc = LDAP_INSUFFICIENT_ACCESS;
|
|
|
|
break;
|
|
|
|
case SASL_TOOWEAK:
|
|
|
|
case SASL_ENCRYPT:
|
|
|
|
rc = LDAP_INAPPROPRIATE_AUTH;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
rc = LDAP_OPERATIONS_ERROR;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
ldap_pvt_sasl_getmechs ( LDAP *ld, LDAP_CONST char *desired, char **pmechlist )
|
|
|
|
{
|
|
|
|
/* we need to query the server for supported mechs anyway */
|
|
|
|
LDAPMessage *res, *e;
|
|
|
|
char *attrs[] = { "supportedSASLMechanisms", NULL };
|
|
|
|
char **values, *mechlist, **p;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = ldap_search_s( ld, NULL, LDAP_SCOPE_BASE,
|
|
|
|
"(objectclass=*)", attrs, 0, &res );
|
|
|
|
|
|
|
|
if ( rc != LDAP_SUCCESS ) {
|
|
|
|
return ld->ld_errno;
|
|
|
|
}
|
|
|
|
|
|
|
|
e = ldap_first_entry( ld, res );
|
|
|
|
if ( e == NULL ) {
|
|
|
|
if ( ld->ld_errno == LDAP_SUCCESS ) {
|
|
|
|
ld->ld_errno = LDAP_UNAVAILABLE;
|
|
|
|
}
|
|
|
|
return ld->ld_errno;
|
|
|
|
}
|
|
|
|
|
|
|
|
values = ldap_get_values( ld, e, "supportedSASLMechanisms" );
|
|
|
|
if ( values == NULL ) {
|
|
|
|
ld->ld_errno = LDAP_NO_SUCH_ATTRIBUTE;
|
|
|
|
ldap_msgfree( res );
|
|
|
|
return ld->ld_errno;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( desired != NULL ) {
|
|
|
|
rc = LDAP_INAPPROPRIATE_AUTH;
|
|
|
|
|
|
|
|
for ( p = values; *p != NULL; p++ ) {
|
|
|
|
if ( !strcmp( *p, desired ) == 0 ) {
|
|
|
|
rc = LDAP_SUCCESS;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( rc == LDAP_SUCCESS ) {
|
|
|
|
/* just return this */
|
|
|
|
*pmechlist = LDAP_STRDUP( desired );
|
|
|
|
return LDAP_SUCCESS;
|
|
|
|
} else {
|
|
|
|
/* couldn't find it */
|
|
|
|
ld->ld_errno = LDAP_INAPPROPRIATE_AUTH;
|
|
|
|
return ld->ld_errno;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
mechlist = array2str( values );
|
|
|
|
if ( mechlist == NULL ) {
|
|
|
|
ld->ld_errno = LDAP_NO_MEMORY;
|
|
|
|
ldap_value_free( values );
|
|
|
|
ldap_msgfree( res );
|
|
|
|
return ld->ld_errno;
|
|
|
|
}
|
|
|
|
|
|
|
|
ldap_value_free( values );
|
|
|
|
ldap_msgfree( res );
|
|
|
|
|
|
|
|
*pmechlist = mechlist;
|
|
|
|
|
|
|
|
return LDAP_SUCCESS;
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
ldap_pvt_sasl_bind(
|
|
|
|
LDAP *ld,
|
|
|
|
LDAP_CONST char *dn,
|
|
|
|
LDAP_CONST char *mechanism,
|
|
|
|
const sasl_callback_t *callbacks,
|
|
|
|
LDAPControl **sctrls,
|
|
|
|
LDAPControl **cctrls )
|
|
|
|
{
|
|
|
|
int saslrc, rc, msgid, ssf = 0;
|
|
|
|
struct berval ccred, *scred;
|
|
|
|
char *mechlist = NULL;
|
|
|
|
char *host;
|
|
|
|
sasl_interact_t *client_interact = NULL;
|
|
|
|
|
|
|
|
Debug( LDAP_DEBUG_TRACE, "ldap_pvt_sasl_bind\n", 0, 0, 0 );
|
|
|
|
|
|
|
|
/* do a quick !LDAPv3 check... ldap_sasl_bind will do the rest. */
|
|
|
|
if (ld->ld_version < LDAP_VERSION3) {
|
|
|
|
ld->ld_errno = LDAP_NOT_SUPPORTED;
|
|
|
|
return ld->ld_errno;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This connects to the host, side effect being that
|
|
|
|
* ldap_host_connected_to() works.
|
|
|
|
*/
|
|
|
|
rc = ldap_pvt_sasl_getmechs( ld, mechanism, &mechlist );
|
|
|
|
if ( rc != LDAP_SUCCESS ) {
|
|
|
|
return ld->ld_errno;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* XXX this doesn't work with PF_LOCAL hosts */
|
|
|
|
host = ldap_host_connected_to( &ld->ld_sb );
|
|
|
|
|
|
|
|
if ( host == NULL ) {
|
|
|
|
LDAP_FREE( mechlist );
|
|
|
|
ld->ld_errno = LDAP_UNAVAILABLE;
|
|
|
|
return ld->ld_errno;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( ld->ld_sasl_context != NULL ) {
|
|
|
|
LDAP_FREE( mechlist );
|
|
|
|
sasl_dispose( &ld->ld_sasl_context );
|
|
|
|
}
|
|
|
|
|
|
|
|
saslrc = sasl_client_new( "ldap", host, callbacks, 0, &ld->ld_sasl_context );
|
|
|
|
|
|
|
|
LDAP_FREE( host );
|
|
|
|
|
|
|
|
if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) {
|
|
|
|
LDAP_FREE( mechlist );
|
|
|
|
ld->ld_errno = ldap_pvt_sasl_err2ldap( rc );
|
|
|
|
sasl_dispose( &ld->ld_sasl_context );
|
|
|
|
return ld->ld_errno;
|
|
|
|
}
|
|
|
|
|
|
|
|
ccred.bv_val = NULL;
|
|
|
|
ccred.bv_len = 0;
|
|
|
|
|
|
|
|
saslrc = sasl_client_start( ld->ld_sasl_context,
|
|
|
|
mechlist,
|
|
|
|
NULL,
|
|
|
|
&client_interact,
|
|
|
|
&ccred.bv_val,
|
|
|
|
(unsigned int *)&ccred.bv_len,
|
|
|
|
&mechanism );
|
|
|
|
|
|
|
|
LDAP_FREE( mechlist );
|
|
|
|
|
|
|
|
if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) {
|
|
|
|
ld->ld_errno = ldap_pvt_sasl_err2ldap( saslrc );
|
|
|
|
sasl_dispose( &ld->ld_sasl_context );
|
|
|
|
return ld->ld_errno;
|
|
|
|
}
|
|
|
|
|
|
|
|
scred = NULL;
|
|
|
|
|
|
|
|
do {
|
|
|
|
sasl_interact_t *client_interact = NULL;
|
|
|
|
|
|
|
|
rc = ldap_sasl_bind_s( ld, dn, mechanism, &ccred, sctrls, cctrls, &scred );
|
|
|
|
if ( rc == LDAP_SUCCESS ) {
|
|
|
|
break;
|
|
|
|
} else if ( rc != LDAP_SASL_BIND_IN_PROGRESS ) {
|
|
|
|
if ( ccred.bv_val != NULL ) {
|
|
|
|
LDAP_FREE( ccred.bv_val );
|
|
|
|
}
|
|
|
|
sasl_dispose( &ld->ld_sasl_context );
|
|
|
|
return ld->ld_errno;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ( ccred.bv_val != NULL ) {
|
|
|
|
LDAP_FREE( ccred.bv_val );
|
|
|
|
ccred.bv_val = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
saslrc = sasl_client_step( ld->ld_sasl_context,
|
|
|
|
(scred == NULL) ? NULL : scred->bv_val,
|
|
|
|
(scred == NULL) ? 0 : scred->bv_len,
|
|
|
|
&client_interact,
|
|
|
|
&ccred.bv_val,
|
|
|
|
(unsigned int *)&ccred.bv_len );
|
|
|
|
|
|
|
|
ber_bvfree( scred );
|
|
|
|
|
|
|
|
if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) {
|
|
|
|
ld->ld_errno = ldap_pvt_sasl_err2ldap( saslrc );
|
|
|
|
sasl_dispose( &ld->ld_sasl_context );
|
|
|
|
return ld->ld_errno;
|
|
|
|
}
|
|
|
|
} while ( rc == LDAP_SASL_BIND_IN_PROGRESS );
|
|
|
|
|
|
|
|
assert ( rc == LDAP_SUCCESS );
|
|
|
|
|
|
|
|
if ( sasl_getprop( ld->ld_sasl_context, SASL_SSF, (void **)&ssf )
|
|
|
|
== SASL_OK && ssf ) {
|
|
|
|
ldap_pvt_sasl_install( &ld->ld_sb, ld->ld_sasl_context );
|
|
|
|
}
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* based on sample/sample-client.c */
|
|
|
|
static int
|
|
|
|
ldap_pvt_sasl_getsecret(sasl_conn_t *conn, void *context, int id, sasl_secret_t **psecret)
|
|
|
|
{
|
|
|
|
struct berval *passphrase = (struct berval *)context;
|
|
|
|
size_t len;
|
|
|
|
|
|
|
|
if ( conn == NULL || psecret == NULL || id != SASL_CB_PASS ) {
|
|
|
|
return SASL_BADPARAM;
|
|
|
|
}
|
|
|
|
|
|
|
|
len = (passphrase != NULL) ? (size_t)passphrase->bv_len: 0;
|
|
|
|
|
|
|
|
*psecret = (sasl_secret_t *) LDAP_MALLOC( sizeof( sasl_secret_t ) + len );
|
|
|
|
if ( *psecret == NULL ) {
|
|
|
|
return SASL_NOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
(*psecret)->len = passphrase->bv_len;
|
|
|
|
|
|
|
|
if ( passphrase != NULL ) {
|
|
|
|
memcpy((*psecret)->data, passphrase->bv_val, len);
|
|
|
|
}
|
|
|
|
|
|
|
|
return SASL_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
ldap_pvt_sasl_getsimple(void *context, int id, const char **result, int *len)
|
|
|
|
{
|
|
|
|
const char *value = (const char *)context;
|
|
|
|
|
|
|
|
if ( result == NULL ) {
|
|
|
|
return SASL_BADPARAM;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch ( id ) {
|
|
|
|
case SASL_CB_USER:
|
|
|
|
case SASL_CB_AUTHNAME:
|
|
|
|
*result = value;
|
|
|
|
if ( len )
|
|
|
|
*len = value ? strlen( value ) : 0;
|
|
|
|
break;
|
|
|
|
case SASL_CB_LANGUAGE:
|
|
|
|
*result = NULL;
|
|
|
|
if ( len )
|
|
|
|
*len = 0;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return SASL_BADPARAM;
|
|
|
|
}
|
|
|
|
|
|
|
|
return SASL_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* ldap_negotiated_sasl_bind_s - bind to the ldap server (and X.500) using SASL
|
|
|
|
* authentication. The dn and password of the entry to which to bind are
|
|
|
|
* supplied. LDAP_SUCCESS is returned upon success, the ldap error code
|
|
|
|
* otherwise.
|
|
|
|
*
|
|
|
|
* Example:
|
|
|
|
* ldap_negotiated_sasl_bind_s( ld, NULL,
|
|
|
|
* "dn:cn=manager", NULL, "GSSAPI", NULL, NULL, NULL );
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
ldap_negotiated_sasl_bind_s(
|
|
|
|
LDAP *ld,
|
|
|
|
LDAP_CONST char *dn, /* usually NULL */
|
|
|
|
LDAP_CONST char *authorizationId,
|
|
|
|
LDAP_CONST char *authenticationId,
|
|
|
|
LDAP_CONST char *saslMechanism,
|
|
|
|
struct berval *passPhrase,
|
|
|
|
LDAPControl **serverControls,
|
|
|
|
LDAPControl **clientControls)
|
|
|
|
{
|
|
|
|
sasl_callback_t callbacks[4];
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
callbacks[0].id = SASL_CB_USER;
|
|
|
|
callbacks[0].proc = ldap_pvt_sasl_getsimple;
|
|
|
|
callbacks[0].context = (void *)authorizationId;
|
|
|
|
callbacks[1].id = SASL_CB_AUTHNAME;
|
|
|
|
callbacks[1].proc = ldap_pvt_sasl_getsimple;
|
|
|
|
callbacks[1].context = (void *)authenticationId;
|
|
|
|
callbacks[2].id = SASL_CB_PASS;
|
|
|
|
callbacks[2].proc = ldap_pvt_sasl_getsecret;
|
|
|
|
callbacks[2].context = (void *)passPhrase;
|
|
|
|
callbacks[3].id = SASL_CB_LIST_END;
|
|
|
|
callbacks[3].proc = NULL;
|
|
|
|
callbacks[3].context = NULL;
|
|
|
|
|
|
|
|
rc = ldap_pvt_sasl_bind(ld, dn, saslMechanism, callbacks, serverControls, clientControls);
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
#endif /* HAVE_CYRUS_SASL */
|