--- libraries/libldap/sasl.c 2000/03/14 01:59:53 1.12 +++ libraries/libldap/sasl.c 2006/01/03 22:12:09 1.63 @@ -1,7 +1,19 @@ -/* $OpenLDAP: pkg/ldap/libraries/libldap/sasl.c,v 1.11 2000/03/14 01:54:08 kurt Exp $ */ -/* - * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved. - * COPYING RESTRICTIONS APPLY, see COPYRIGHT file +/* $OpenLDAP: pkg/ldap/libraries/libldap/sasl.c,v 1.62 2005/12/13 19:11:26 ando Exp $ */ +/* This work is part of OpenLDAP Software . + * + * Copyright 1998-2006 The OpenLDAP Foundation. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted only as authorized by the OpenLDAP + * Public License. + * + * A copy of this license is available in the file LICENSE in the + * top-level directory of the distribution or, alternatively, at + * . + */ +/* Portions Copyright (C) The Internet Society (1997) + * ASN.1 fragments are from RFC 2251; see RFC for full legal notices. */ /* @@ -30,20 +42,22 @@ #include #include +#include #include #include +#include #include "ldap-int.h" - /* - * ldap_sasl_bind - bind to the ldap server (and X.500). The dn, mechanism, and - * credentials of the entry to which to bind are supplied. The message id - * of the request initiated is provided upon successful (LDAP_SUCCESS) return. + * ldap_sasl_bind - bind to the ldap server (and X.500). + * The dn (usually NULL), mechanism, and credentials are provided. + * The message id of the request initiated is provided upon successful + * (LDAP_SUCCESS) return. * * Example: - * ldap_sasl_bind( ld, "cn=manager, o=university of michigan, c=us", - * "mechanism", "secret", NULL, NULL, &msgid ) + * ldap_sasl_bind( ld, NULL, "mechanism", + * cred, NULL, NULL, &msgid ) */ int @@ -58,6 +72,7 @@ ldap_sasl_bind( { BerElement *ber; int rc; + ber_int_t id; Debug( LDAP_DEBUG_TRACE, "ldap_sasl_bind\n", 0, 0, 0 ); @@ -65,13 +80,12 @@ ldap_sasl_bind( assert( LDAP_VALID( ld ) ); assert( msgidp != NULL ); - if( msgidp == NULL ) { - ld->ld_errno = LDAP_PARAM_ERROR; - return ld->ld_errno; - } + /* check client controls */ + rc = ldap_int_client_controls( ld, cctrls ); + if( rc != LDAP_SUCCESS ) return rc; if( mechanism == LDAP_SASL_SIMPLE ) { - if( dn == NULL && cred != NULL ) { + if( dn == NULL && cred != NULL && cred->bv_len ) { /* use default binddn */ dn = ld->ld_defbinddn; } @@ -91,26 +105,27 @@ ldap_sasl_bind( return ld->ld_errno; } - assert( BER_VALID( ber ) ); + assert( LBER_VALID( ber ) ); + LDAP_NEXT_MSGID( ld, id ); if( mechanism == LDAP_SASL_SIMPLE ) { /* simple bind */ - rc = ber_printf( ber, "{it{istO}" /*}*/, - ++ld->ld_msgid, LDAP_REQ_BIND, + rc = ber_printf( ber, "{it{istON}" /*}*/, + id, LDAP_REQ_BIND, ld->ld_version, dn, LDAP_AUTH_SIMPLE, cred ); - } else if ( cred == NULL ) { - /* SASL bind w/o creditials */ - rc = ber_printf( ber, "{it{ist{s}}" /*}*/, - ++ld->ld_msgid, LDAP_REQ_BIND, + } else if ( cred == NULL || cred->bv_val == NULL ) { + /* SASL bind w/o credentials */ + rc = ber_printf( ber, "{it{ist{sN}N}" /*}*/, + id, LDAP_REQ_BIND, ld->ld_version, dn, LDAP_AUTH_SASL, mechanism ); } else { - /* SASL bind w/ creditials */ - rc = ber_printf( ber, "{it{ist{sO}}" /*}*/, - ++ld->ld_msgid, LDAP_REQ_BIND, + /* SASL bind w/ credentials */ + rc = ber_printf( ber, "{it{ist{sON}N}" /*}*/, + id, LDAP_REQ_BIND, ld->ld_version, dn, LDAP_AUTH_SASL, mechanism, cred ); } @@ -127,20 +142,15 @@ ldap_sasl_bind( return ld->ld_errno; } - if ( ber_printf( ber, /*{*/ "}" ) == -1 ) { + if ( ber_printf( ber, /*{*/ "N}" ) == -1 ) { ld->ld_errno = LDAP_ENCODING_ERROR; ber_free( ber, 1 ); return ld->ld_errno; } -#ifndef LDAP_NOCACHE - if ( ld->ld_cache != NULL ) { - ldap_flush_cache( ld ); - } -#endif /* !LDAP_NOCACHE */ /* send the message */ - *msgidp = ldap_send_initial_request( ld, LDAP_REQ_BIND, dn, ber ); + *msgidp = ldap_send_initial_request( ld, LDAP_REQ_BIND, dn, ber, id ); if(*msgidp < 0) return ld->ld_errno; @@ -180,7 +190,13 @@ ldap_sasl_bind_s( return( rc ); } - if ( ldap_result( ld, msgid, 1, NULL, &result ) == -1 ) { +#ifdef LDAP_CONNECTIONLESS + if (LDAP_IS_UDP(ld)) { + return( rc ); + } +#endif + + if ( ldap_result( ld, msgid, LDAP_MSG_ALL, NULL, &result ) == -1 ) { return( ld->ld_errno ); /* ldap_result sets ld_errno */ } @@ -197,12 +213,14 @@ ldap_sasl_bind_s( rc = ldap_result2error( ld, result, 1 ); - if ( rc != LDAP_SUCCESS && rc != LDAP_SASL_BIND_IN_PROGRESS ) { + if ( rc == LDAP_SUCCESS || rc == LDAP_SASL_BIND_IN_PROGRESS ) { if( servercredp != NULL ) { *servercredp = scredp; + scredp = NULL; } + } - } else if (scredp != NULL ) { + if ( scredp != NULL ) { ber_bvfree(scredp); } @@ -243,10 +261,6 @@ ldap_parse_sasl_bind_result( assert( LDAP_VALID( ld ) ); assert( res != NULL ); - if ( ld == NULL || res == NULL ) { - return LDAP_PARAM_ERROR; - } - if( servercredp != NULL ) { if( ld->ld_version < LDAP_VERSION2 ) { return LDAP_NOT_SUPPORTED; @@ -280,8 +294,13 @@ ldap_parse_sasl_bind_result( } if ( ld->ld_version < LDAP_VERSION2 ) { +#ifdef LDAP_NULL_IS_NULL + tag = ber_scanf( ber, "{iA}", + &errcode, &ld->ld_error ); +#else /* ! LDAP_NULL_IS_NULL */ tag = ber_scanf( ber, "{ia}", &errcode, &ld->ld_error ); +#endif /* ! LDAP_NULL_IS_NULL */ if( tag == LBER_ERROR ) { ber_free( ber, 0 ); @@ -292,8 +311,13 @@ ldap_parse_sasl_bind_result( } else { ber_len_t len; - tag = ber_scanf( ber, "{iaa" /*}*/, +#ifdef LDAP_NULL_IS_NULL + tag = ber_scanf( ber, "{eAA" /*}*/, + &errcode, &ld->ld_matched, &ld->ld_error ); +#else /* ! LDAP_NULL_IS_NULL */ + tag = ber_scanf( ber, "{eaa" /*}*/, &errcode, &ld->ld_matched, &ld->ld_error ); +#endif /* ! LDAP_NULL_IS_NULL */ if( tag == LBER_ERROR ) { ber_free( ber, 0 ); @@ -341,211 +365,19 @@ ldap_parse_sasl_bind_result( return( ld->ld_errno ); } -#ifdef HAVE_CYRUS_SASL -/* -* Various Cyrus SASL related stuff. -*/ - -static int sasl_setup( Sockbuf *sb, void *arg ); -static int sasl_remove( Sockbuf *sb ); -static ber_slen_t sasl_read( Sockbuf *sb, void *buf, ber_len_t len ); -static ber_slen_t sasl_write( Sockbuf *sb, void *buf, ber_len_t len ); -static int sasl_close( Sockbuf *sb ); - -static Sockbuf_IO sasl_io= -{ -sasl_setup, -sasl_remove, -sasl_read, -sasl_write, -sasl_close -}; - -#define HAS_SASL( sb ) ((sb)->sb_io==&sasl_io) - -static char * -array2str( char **a ) -{ - char *s, **v, *p; - int len = 0; - - 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 0; - } -#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 ) +ldap_pvt_sasl_getmechs ( LDAP *ld, char **pmechlist ) { /* we need to query the server for supported mechs anyway */ LDAPMessage *res, *e; char *attrs[] = { "supportedSASLMechanisms", NULL }; - char **values, *mechlist, **p; + char **values, *mechlist; int rc; - rc = ldap_search_s( ld, NULL, LDAP_SCOPE_BASE, - "(objectclass=*)", attrs, 0, &res ); + Debug( LDAP_DEBUG_TRACE, "ldap_pvt_sasl_getmech\n", 0, 0, 0 ); + + rc = ldap_search_s( ld, "", LDAP_SCOPE_BASE, + NULL, attrs, 0, &res ); if ( rc != LDAP_SUCCESS ) { return ld->ld_errno; @@ -553,49 +385,29 @@ ldap_pvt_sasl_getmechs ( LDAP *ld, LDAP_ e = ldap_first_entry( ld, res ); if ( e == NULL ) { + ldap_msgfree( res ); if ( ld->ld_errno == LDAP_SUCCESS ) { - ld->ld_errno = LDAP_UNAVAILABLE; + ld->ld_errno = LDAP_NO_SUCH_OBJECT; } return ld->ld_errno; } values = ldap_get_values( ld, e, "supportedSASLMechanisms" ); if ( values == NULL ) { - ld->ld_errno = LDAP_NO_SUCH_ATTRIBUTE; ldap_msgfree( res ); + ld->ld_errno = LDAP_NO_SUCH_ATTRIBUTE; 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 ); + mechlist = ldap_charray2str( values, " " ); if ( mechlist == NULL ) { - ld->ld_errno = LDAP_NO_MEMORY; - ldap_value_free( values ); + LDAP_VFREE( values ); ldap_msgfree( res ); + ld->ld_errno = LDAP_NO_MEMORY; return ld->ld_errno; } - ldap_value_free( values ); + LDAP_VFREE( values ); ldap_msgfree( res ); *pmechlist = mechlist; @@ -603,253 +415,76 @@ ldap_pvt_sasl_getmechs ( LDAP *ld, LDAP_ return LDAP_SUCCESS; } -int -ldap_pvt_sasl_bind( - LDAP *ld, - LDAP_CONST char *dn, - LDAP_CONST char *mechanism, - LDAP_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. + * ldap_sasl_interactive_bind_s - interactive SASL authentication * - * This routine attempts to authenticate the user referred by the - * authentication id using the provided password. An optional - * authorization identity may be provided. An DN is generally not - * provided [see AuthMethod]. + * This routine uses interactive callbacks. * - * If the mechanism negotiated does not require a password, the - * passwd field is ignored. [A callback mechanism should really - * be used]. - * * LDAP_SUCCESS is returned upon success, the ldap error code * otherwise. - * - * Examples: - * ldap_negotiated_sasl_bind_s( ld, NULL, - * "user@OPENLDAP.ORG", NULL, NULL, - * "GSSAPI", NULL, NULL, NULL ); - * - * ldap_negotiated_sasl_bind_s( ld, NULL, - * "manager", "cn=user,dc=openldap,dc=org", NULL, - * "DIGEST-MD5", NULL, NULL, NULL ); - * - * ldap_negotiated_sasl_bind_s( ld, NULL, - * "root@OPENLDAP.ORG", "u:user@OPENLDAP.ORG", NULL, - * "GSSAPI", NULL, NULL, NULL ); - * - * ldap_negotiated_sasl_bind_s( ld, NULL, - * "manager", "dn:cn=user,dc=openldap,dc=org", NULL, - * "DIGEST-MD5", NULL, NULL, NULL ); */ int -ldap_negotiated_sasl_bind_s( +ldap_sasl_interactive_bind_s( LDAP *ld, LDAP_CONST char *dn, /* usually NULL */ - LDAP_CONST char *authenticationId, - LDAP_CONST char *authorizationId, /* commonly NULL */ - LDAP_CONST char *saslMechanism, - struct berval *passPhrase, + LDAP_CONST char *mechs, LDAPControl **serverControls, - LDAPControl **clientControls) + LDAPControl **clientControls, + unsigned flags, + LDAP_SASL_INTERACT_PROC *interact, + void *defaults ) { - int n; - sasl_callback_t callbacks[4]; int rc; + char *smechs = NULL; - callbacks[n=0].id = SASL_CB_USER; - callbacks[n].proc = ldap_pvt_sasl_getsimple; - callbacks[n].context = (void *)authenticationId; - - if( authorizationId != NULL ) { - callbacks[++n].id = SASL_CB_AUTHNAME; - callbacks[n].proc = ldap_pvt_sasl_getsimple; - callbacks[n].context = (void *)authorizationId; - } - - callbacks[++n].id = SASL_CB_PASS; - callbacks[n].proc = ldap_pvt_sasl_getsecret; - callbacks[n].context = (void *)passPhrase; - - callbacks[++n].id = SASL_CB_LIST_END; - callbacks[n].proc = NULL; - callbacks[n].context = NULL; +#if defined( LDAP_R_COMPILE ) && defined( HAVE_CYRUS_SASL ) + ldap_pvt_thread_mutex_lock( &ldap_int_sasl_mutex ); +#endif +#ifdef LDAP_CONNECTIONLESS + if( LDAP_IS_UDP(ld) ) { + /* Just force it to simple bind, silly to make the user + * ask all the time. No, we don't ever actually bind, but I'll + * let the final bind handler take care of saving the cdn. + */ + rc = ldap_simple_bind( ld, dn, NULL ); + rc = rc < 0 ? rc : 0; + goto done; + } else +#endif - rc = ldap_pvt_sasl_bind(ld, dn, saslMechanism, callbacks, - serverControls, clientControls); +#ifdef HAVE_CYRUS_SASL + if( mechs == NULL || *mechs == '\0' ) { + mechs = ld->ld_options.ldo_def_sasl_mech; + } +#endif + + if( mechs == NULL || *mechs == '\0' ) { + rc = ldap_pvt_sasl_getmechs( ld, &smechs ); + if( rc != LDAP_SUCCESS ) { + goto done; + } + + Debug( LDAP_DEBUG_TRACE, + "ldap_sasl_interactive_bind_s: server supports: %s\n", + smechs, 0, 0 ); + + mechs = smechs; + + } else { + Debug( LDAP_DEBUG_TRACE, + "ldap_sasl_interactive_bind_s: user selected: %s\n", + mechs, 0, 0 ); + } + + rc = ldap_int_sasl_bind( ld, dn, mechs, + serverControls, clientControls, + flags, interact, defaults ); + +done: +#if defined( LDAP_R_COMPILE ) && defined( HAVE_CYRUS_SASL ) + ldap_pvt_thread_mutex_unlock( &ldap_int_sasl_mutex ); +#endif + if ( smechs ) LDAP_FREE( smechs ); return rc; } -#endif /* HAVE_CYRUS_SASL */