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Use IPV6_V6ONLY on IPv6 sockets if available. This way we only get IPv6
[openldap] / servers / slapd / sasl.c
index 807418a558051e362f763319a7a85e2db7b0bd45..13088088afe0de9f69dfad6fecea924867969f29 100644 (file)
 
 static sasl_security_properties_t sasl_secprops;
 
+int slap_sasl_config( int cargc, char **cargv, char *line,
+       const char *fname, int lineno )
+{
+               /* set SASL proxy authorization policy */
+               if ( strcasecmp( cargv[0], "sasl-authz-policy" ) == 0 ) {
+                       if ( cargc != 2 ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
+                                          "%s: line %d: missing policy in \"sasl-authz-policy <policy>\" line\n",
+                                          fname, lineno ));
+#else
+                               Debug( LDAP_DEBUG_ANY,
+           "%s: line %d: missing policy in \"sasl-authz-policy <policy>\" line\n",
+                                   fname, lineno, 0 );
+#endif
+
+                               return( 1 );
+                       }
+                       if ( slap_sasl_setpolicy( cargv[1] ) ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
+                                          "%s: line %d: unable "
+                                          "to parse value \"%s\" "
+                                          "in \"sasl-authz-policy "
+                                          "<policy>\" line.\n",
+                                          fname, lineno, cargv[1] ));
+#else
+                               Debug( LDAP_DEBUG_ANY,
+                                       "%s: line %d: unable "
+                                       "to parse value \"%s\" "
+                                       "in \"sasl-authz-policy "
+                                       "<policy>\" line\n",
+                                       fname, lineno, cargv[1] );
+#endif
+                               return( 1 );
+                       }
+                       
+
+               /* set SASL host */
+               } else if ( strcasecmp( cargv[0], "sasl-host" ) == 0 ) {
+                       if ( cargc < 2 ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
+                                          "%s: line %d: missing host in \"sasl-host <host>\" line\n",
+                                          fname, lineno ));
+#else
+                               Debug( LDAP_DEBUG_ANY,
+           "%s: line %d: missing host in \"sasl-host <host>\" line\n",
+                                   fname, lineno, 0 );
+#endif
+
+                               return( 1 );
+                       }
+
+                       if ( global_host != NULL ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
+                                          "%s: line %d: already set sasl-host!\n",
+                                          fname, lineno ));
+#else
+                               Debug( LDAP_DEBUG_ANY,
+                                       "%s: line %d: already set sasl-host!\n",
+                                       fname, lineno, 0 );
+#endif
+
+                               return 1;
+
+                       } else {
+                               global_host = ch_strdup( cargv[1] );
+                       }
+
+               /* set SASL realm */
+               } else if ( strcasecmp( cargv[0], "sasl-realm" ) == 0 ) {
+                       if ( cargc < 2 ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
+                                          "%s: line %d: missing realm in \"sasl-realm <realm>\" line.\n",
+                                          fname, lineno ));
+#else
+                               Debug( LDAP_DEBUG_ANY,
+           "%s: line %d: missing realm in \"sasl-realm <realm>\" line\n",
+                                   fname, lineno, 0 );
+#endif
+
+                               return( 1 );
+                       }
+
+                       if ( global_realm != NULL ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
+                                          "%s: line %d: already set sasl-realm!\n",
+                                          fname, lineno ));
+#else
+                               Debug( LDAP_DEBUG_ANY,
+                                       "%s: line %d: already set sasl-realm!\n",
+                                       fname, lineno, 0 );
+#endif
+
+                               return 1;
+
+                       } else {
+                               global_realm = ch_strdup( cargv[1] );
+                       }
+
+               } else if ( !strcasecmp( cargv[0], "sasl-regexp" ) 
+                       || !strcasecmp( cargv[0], "saslregexp" ) )
+               {
+                       int rc;
+                       if ( cargc != 3 ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
+                                          "%s: line %d: need 2 args in "
+                                          "\"saslregexp <match> <replace>\"\n",
+                                          fname, lineno ));
+#else
+                               Debug( LDAP_DEBUG_ANY, 
+                               "%s: line %d: need 2 args in \"saslregexp <match> <replace>\"\n",
+                                   fname, lineno, 0 );
+#endif
+
+                               return( 1 );
+                       }
+                       rc = slap_sasl_regexp_config( cargv[1], cargv[2] );
+                       if ( rc ) {
+                               return rc;
+                       }
+
+               /* SASL security properties */
+               } else if ( strcasecmp( cargv[0], "sasl-secprops" ) == 0 ) {
+                       char *txt;
+
+                       if ( cargc < 2 ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
+                                          "%s: line %d: missing flags in "
+                                          "\"sasl-secprops <properties>\" line\n",
+                                          fname, lineno ));
+#else
+                               Debug( LDAP_DEBUG_ANY,
+           "%s: line %d: missing flags in \"sasl-secprops <properties>\" line\n",
+                                   fname, lineno, 0 );
+#endif
+
+                               return 1;
+                       }
+
+                       txt = slap_sasl_secprops( cargv[1] );
+                       if ( txt != NULL ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "config", LDAP_LEVEL_CRIT,
+                                          "%s: line %d sasl-secprops: %s\n",
+                                          fname, lineno, txt ));
+#else
+                               Debug( LDAP_DEBUG_ANY,
+           "%s: line %d: sasl-secprops: %s\n",
+                                   fname, lineno, txt );
+#endif
+
+                               return 1;
+                       }
+           }
+
+           return LDAP_SUCCESS;
+}
+
 static int
 slap_sasl_log(
        void *context,
@@ -176,7 +341,11 @@ int slap_sasl_getdn( Connection *conn, char *id, int len,
 
        ctx = conn->c_sasl_context;
 
-       /* An authcID needs to be converted to authzID form */
+       /* An authcID needs to be converted to authzID form. Set the
+        * values directly into *dn; they will be normalized later. (and
+        * normalizing always makes a new copy.) An ID from a TLS certificate
+        * is already normalized, so copy it and skip normalization.
+        */
        if( flags & FLAG_GETDN_AUTHCID ) {
 #ifdef HAVE_TLS
                if( conn->c_is_tls && conn->c_sasl_bind_mech.bv_len == ext_bv.bv_len
@@ -184,28 +353,31 @@ int slap_sasl_getdn( Connection *conn, char *id, int len,
                        /* X.509 DN is already normalized */
                        do_norm = 0;
                        is_dn = SET_DN;
+                       ber_str2bv( id, len, 1, dn );
 
                } else
 #endif
                {
                        /* convert to u:<username> form */
                        is_dn = SET_U;
+                       dn->bv_val = id;
+                       dn->bv_len = len;
                }
-               ber_str2bv( id, len, 1, dn );
        }
        if( !is_dn ) {
                if( !strncasecmp( id, "u:", sizeof("u:")-1 )) {
                        is_dn = SET_U;
-                       ber_str2bv( id+2, len-2, 1, dn );
+                       dn->bv_val = id+2;
+                       dn->bv_len = len-2;
                } else if ( !strncasecmp( id, "dn:", sizeof("dn:")-1) ) {
                        is_dn = SET_DN;
-                       ber_str2bv( id+3, len-3, 1, dn );
+                       dn->bv_val = id+3;
+                       dn->bv_len = len-3;
                }
        }
 
-       /* An authzID must be properly prefixed */
-       if( (flags & FLAG_GETDN_AUTHZID) && !is_dn ) {
-               free( dn->bv_val );
+       /* No other possibilities from here */
+       if( !is_dn ) {
                dn->bv_val = NULL;
                dn->bv_len = 0;
                return( LDAP_INAPPROPRIATE_AUTH );
@@ -232,16 +404,17 @@ int slap_sasl_getdn( Connection *conn, char *id, int len,
                c1 = dn->bv_val;
                dn->bv_val = ch_malloc( len+1 );
                p = slap_strcopy( dn->bv_val, "uid=" );
-               p = slap_strcopy( p, c1 );
+               p = slap_strncopy( p, c1, dn->bv_len );
 
                if( realm ) {
+                       int rlen = dn->bv_len - ( realm - c1 );
                        p = slap_strcopy( p, ",cn=" );
-                       p = slap_strcopy( p, realm );
+                       p = slap_strncopy( p, realm, rlen );
+                       realm[-1] = '@';
                } else if( user_realm && *user_realm ) {
                        p = slap_strcopy( p, ",cn=" );
                        p = slap_strcopy( p, user_realm );
                }
-               ch_free( c1 );
 
                if( conn->c_sasl_bind_mech.bv_len ) {
                        p = slap_strcopy( p, ",cn=" );
@@ -249,7 +422,6 @@ int slap_sasl_getdn( Connection *conn, char *id, int len,
                }
                p = slap_strcopy( p, ",cn=auth" );
                dn->bv_len = p - dn->bv_val;
-               is_dn = SET_DN;
 
 #ifdef NEW_LOGGING
                LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
@@ -259,27 +431,14 @@ int slap_sasl_getdn( Connection *conn, char *id, int len,
 #endif
        }
 
-       /* DN strings that are a cn=auth identity to run through regexp */
-       if( is_dn == SET_DN )
-       {
-               slap_sasl2dn( conn, dn, &dn2 );
-               if( dn2.bv_val ) {
-                       ch_free( dn->bv_val );
-                       *dn = dn2;
-                       do_norm = 0;    /* slap_sasl2dn normalizes */
-#ifdef NEW_LOGGING
-                       LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
-                               "slap_sasl_getdn: dn:id converted to %s.\n", dn->bv_val ));
-#else
-                       Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n",
-                               dn->bv_val, 0, 0 );
-#endif
-               }
-       }
-
+       /* All strings are in DN form now. Normalize if needed. */
        if ( do_norm ) {
                rc = dnNormalize2( NULL, dn, &dn2 );
-               free(dn->bv_val);
+
+               /* User DNs were constructed above and must be freed now */
+               if ( is_dn == SET_U )
+                       ch_free( dn->bv_val );
+
                if ( rc != LDAP_SUCCESS ) {
                        dn->bv_val = NULL;
                        dn->bv_len = 0;
@@ -288,6 +447,20 @@ int slap_sasl_getdn( Connection *conn, char *id, int len,
                *dn = dn2;
        }
 
+       /* Run thru regexp */
+       slap_sasl2dn( conn, dn, &dn2 );
+       if( dn2.bv_val ) {
+               ch_free( dn->bv_val );
+               *dn = dn2;
+#ifdef NEW_LOGGING
+               LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+                       "slap_sasl_getdn: dn:id converted to %s.\n", dn->bv_val ));
+#else
+               Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n",
+                       dn->bv_val, 0, 0 );
+#endif
+       }
+
        return( LDAP_SUCCESS );
 }
 
@@ -302,9 +475,9 @@ slap_auxprop_lookup(
        const char *user,
        unsigned ulen)
 {
-       int rc;
+       int rc, i, last;
        struct berval dn;
-       const struct propval *list, *cur;
+       const struct propval *list;
        BerVarray vals, bv;
        AttributeDescription *ad;
        const char *text;
@@ -312,25 +485,29 @@ slap_auxprop_lookup(
        list = sparams->utils->prop_get( sparams->propctx );
 
        /* Find our DN first */
-       for( cur = list; cur->name; cur++ ) {
-               if ( cur->name[0] == '*' ) {
+       for( i = 0, last = 0; list[i].name; i++ ) {
+               if ( list[i].name[0] == '*' ) {
                        if ( (flags & SASL_AUXPROP_AUTHZID) &&
-                               !strcmp( cur->name, slap_propnames[1] ) ) {
-                               if ( cur->values && cur->values[0] )
-                                       AC_MEMCPY( &dn, cur->values[0], sizeof( dn ) );
+                               !strcmp( list[i].name, slap_propnames[1] ) ) {
+                               if ( list[i].values && list[i].values[0] )
+                                       AC_MEMCPY( &dn, list[i].values[0], sizeof( dn ) );
+                               if ( !last ) last = i;
                                break;
                        }
-                       if ( !strcmp( cur->name, slap_propnames[0] ) ) {
-                               AC_MEMCPY( &dn, cur->values[0], sizeof( dn ) );
-                               if ( !(flags & SASL_AUXPROP_AUTHZID) )
-                                       break;
+                       if ( !strcmp( list[i].name, slap_propnames[0] ) ) {
+                               if ( !last ) last = i;
+                               if ( list[i].values && list[i].values[0] ) {
+                                       AC_MEMCPY( &dn, list[i].values[0], sizeof( dn ) );
+                                       if ( !(flags & SASL_AUXPROP_AUTHZID) )
+                                               break;
+                               }
                        }
                }
        }
 
        /* Now fetch the rest */
-       for( cur = list; cur->name; cur++ ) {
-               const char *name = cur->name;
+       for( i = 0; i < last; i++ ) {
+               const char *name = list[i].name;
 
                if ( name[0] == '*' ) {
                        if ( flags & SASL_AUXPROP_AUTHZID ) continue;
@@ -338,9 +515,9 @@ slap_auxprop_lookup(
                } else if ( !(flags & SASL_AUXPROP_AUTHZID ) )
                        continue;
 
-               if ( cur->values ) {
+               if ( list[i].values ) {
                        if ( !(flags & SASL_AUXPROP_OVERRIDE) ) continue;
-                       sparams->utils->prop_erase( sparams->propctx, cur->name );
+                       sparams->utils->prop_erase( sparams->propctx, list[i].name );
                }
                ad = NULL;
                rc = slap_str2ad( name, &ad, &text );
@@ -358,7 +535,7 @@ slap_auxprop_lookup(
                rc = backend_attribute( NULL,NULL,NULL,NULL, &dn, ad, &vals );
                if ( rc != LDAP_SUCCESS ) continue;
                for ( bv = vals; bv->bv_val; bv++ ) {
-                       sparams->utils->prop_set( sparams->propctx, cur->name,
+                       sparams->utils->prop_set( sparams->propctx, list[i].name,
                                bv->bv_val, bv->bv_len );
                }
                ber_bvarray_free( vals );
@@ -479,8 +656,9 @@ slap_sasl_canonicalize(
 {
        Connection *conn = (Connection *)context;
        struct propctx *props = sasl_auxprop_getctx( sconn );
+       struct propval auxvals[3];
        struct berval dn;
-       int rc;
+       int rc, which;
        const char *names[2];
 
        *out_len = 0;
@@ -499,20 +677,37 @@ slap_sasl_canonicalize(
                        in ? in : "<empty>" );
 #endif
 
+       /* If name is too big, just truncate. We don't care, we're
+        * using DNs, not the usernames.
+        */
        if ( inlen > out_max )
-               return SASL_BUFOVER;
+               inlen = out_max-1;
+
+       /* See if we need to add request, can only do it once */
+       prop_getnames( props, slap_propnames, auxvals );
+       if ( !auxvals[0].name )
+               prop_request( props, slap_propnames );
+
+       if ( flags & SASL_CU_AUTHID )
+               which = 0;
+       else
+               which = 1;
+
+       /* Already been here? */
+       if ( auxvals[which].values )
+               goto done;
 
        if ( flags == SASL_CU_AUTHZID ) {
        /* If we got unqualified authzid's, they probably came from SASL
-        * itself just passing the authcid to us. Ignore it.
+        * itself just passing the authcid to us. Look inside the oparams
+        * structure to see if that's true. (HACK: the out_len pointer is
+        * the address of a member of a sasl_out_params_t structure...)
         */
-               if (strncasecmp(in, "u:", 2) && strncasecmp(in, "dn:", 3)) {
-                       AC_MEMCPY( out, in, inlen );
-                       out[inlen] = '\0';
-                       *out_len = inlen;
-
-                       return SASL_OK;
-               }
+               sasl_out_params_t dummy;
+               int offset = (void *)&dummy.ulen - (void *)&dummy.authid;
+               char **authid = (void *)out_len - offset;
+               if ( *authid && !strcmp( in, *authid ) )
+                       goto done;
        }
 
        rc = slap_sasl_getdn( conn, (char *)in, inlen, (char *)user_realm, &dn,
@@ -522,33 +717,26 @@ slap_sasl_canonicalize(
                return SASL_NOAUTHZ;
        }               
 
-       AC_MEMCPY( out, in, inlen );
-       out[inlen] = '\0';
-
-       *out_len = inlen;
-
-       if ( flags & SASL_CU_AUTHID )
-               names[0] = slap_propnames[0];
-       else
-               names[0] = slap_propnames[1];
+       names[0] = slap_propnames[which];
        names[1] = NULL;
 
-       sasl_auxprop_request( sconn, names );
        prop_set( props, names[0], (char *)&dn, sizeof( dn ) );
                
 #ifdef NEW_LOGGING
        LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
                "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
                        conn ? conn->c_connid : -1,
-                       (flags & SASL_CU_AUTHID) ? "authcDN" : "authzDN",
-                       dn.bv_val ));
+                       names[0]+1, dn.bv_val ));
 #else
        Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: "
                "%s=\"%s\"\n",
                        conn ? conn->c_connid : -1,
-                       (flags & SASL_CU_AUTHID) ? "authcDN" : "authzDN",
-                       dn.bv_val );
+                       names[0]+1, dn.bv_val );
 #endif
+done:  AC_MEMCPY( out, in, inlen );
+       out[inlen] = '\0';
+
+       *out_len = inlen;
 
        return SASL_OK;
 }
@@ -579,17 +767,26 @@ slap_sasl_authorize(
                "authcid=\"%s\" authzid=\"%s\"\n",
                conn ? conn->c_connid : -1, auth_identity, requested_user );
 #endif
+       if ( conn->c_sasl_dn.bv_val ) {
+               ch_free( conn->c_sasl_dn.bv_val );
+               conn->c_sasl_dn.bv_val = NULL;
+               conn->c_sasl_dn.bv_len = 0;
+       }
 
        prop_getnames( props, slap_propnames, auxvals );
        
+       AC_MEMCPY( &authcDN, auxvals[0].values[0], sizeof(authcDN) );
+
        /* Nothing to do if no authzID was given */
-       if ( !auxvals[1].name )
+       if ( !auxvals[1].name || !auxvals[1].values ) {
+               conn->c_sasl_dn = authcDN;
                return SASL_OK;
+       }
        
-       AC_MEMCPY( &authcDN, auxvals[0].values[0], sizeof(authcDN) );
        AC_MEMCPY( &authzDN, auxvals[1].values[0], sizeof(authzDN) );
 
        rc = slap_sasl_authorized( &authcDN, &authzDN );
+       ch_free( authcDN.bv_val );
        if ( rc != LDAP_SUCCESS ) {
 #ifdef NEW_LOGGING
                LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
@@ -602,9 +799,12 @@ slap_sasl_authorize(
 #endif
 
                sasl_seterror( sconn, 0, "not authorized" );
+               ch_free( authzDN.bv_val );
                return SASL_NOAUTHZ;
        }
 
+       conn->c_sasl_dn = authzDN;
+
 #ifdef NEW_LOGGING
        LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
                   "slap_sasl_authorize: conn %d authorization allowed\n",
@@ -626,11 +826,16 @@ slap_sasl_authorize(
        const char **errstr)
 {
        struct berval authcDN, authzDN;
-       int rc:
+       int rc;
        Connection *conn = context;
        char *realm;
 
        *user = NULL;
+       if ( conn->c_sasl_dn.bv_val ) {
+               ch_free( conn->c_sasl_dn.bv_val );
+               conn->c_sasl_dn.bv_val = NULL;
+               conn->c_sasl_dn.bv_len = 0;
+       }
 
 #ifdef NEW_LOGGING
        LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
@@ -677,7 +882,7 @@ slap_sasl_authorize(
                 "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN.bv_val,0 );
 #endif
 
-               *user = authcDN.bv_val;
+               conn->c_sasl_dn = authcDN;
                *errstr = NULL;
                return SASL_OK;
        }
@@ -689,6 +894,7 @@ slap_sasl_authorize(
        }
 
        rc = slap_sasl_authorized( &authcDN, &authzDN );
+       ch_free( authcDN.bv_val );
        if( rc ) {
 #ifdef NEW_LOGGING
                LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
@@ -701,7 +907,6 @@ slap_sasl_authorize(
 #endif
 
                *errstr = "not authorized";
-               ch_free( authcDN.bv_val );
                ch_free( authzDN.bv_val );
                return SASL_NOAUTHZ;
        }
@@ -716,9 +921,7 @@ slap_sasl_authorize(
                (long) (conn ? conn->c_connid : -1), 0, 0 );
 #endif
 
-
-       ch_free( authcDN.bv_val );
-       *user = authzDN.bv_val;
+       conn->c_sasl_dn = authzDN;
        *errstr = NULL;
        return SASL_OK;
 }
@@ -1146,18 +1349,11 @@ int slap_sasl_bind(
        response.bv_len = reslen;
 
        if ( sc == SASL_OK ) {
-#if SASL_VERSION_MAJOR >= 2
-               struct propctx *props = sasl_auxprop_getctx( ctx );
-               struct propval vals[3];
                sasl_ssf_t *ssf = NULL;
 
-               prop_getnames( props, slap_propnames, vals );
-
-               AC_MEMCPY( edn, vals[0].values[0], sizeof(*edn) );
-               if ( vals[1].name ) {
-                       ch_free( edn->bv_val );
-                       AC_MEMCPY( edn, vals[1].values[0], sizeof(*edn) );
-               }
+               *edn = conn->c_sasl_dn;
+               conn->c_sasl_dn.bv_val = NULL;
+               conn->c_sasl_dn.bv_len = 0;
 
                rc = LDAP_SUCCESS;
 
@@ -1173,46 +1369,6 @@ int slap_sasl_bind(
                send_ldap_sasl( conn, op, rc,
                        NULL, NULL, NULL, NULL,
                        response.bv_len ? &response : NULL );
-#else
-               char *username = NULL;
-
-               sc = sasl_getprop( ctx,
-                       SASL_USERNAME, (SASL_CONST void **)&username );
-
-               if ( sc != SASL_OK ) {
-#ifdef NEW_LOGGING
-                       LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
-                               "slap_sasl_bind: getprop(USERNAME) failed: %d\n", sc ));
-#else
-                       Debug(LDAP_DEBUG_TRACE,
-                               "slap_sasl_bind: getprop(USERNAME) failed!\n",
-                               0, 0, 0);
-#endif
-
-
-                       send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
-                               NULL, "no SASL username", NULL, NULL );
-
-               } else {
-                       sasl_ssf_t *ssf = NULL;
-
-                       rc = LDAP_SUCCESS;
-                       ber_str2bv( username, 0, 1, edn );
-
-                       (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
-                       *ssfp = ssf ? *ssf : 0;
-
-                       if( *ssfp ) {
-                               ldap_pvt_thread_mutex_lock( &conn->c_mutex );
-                               conn->c_sasl_layers++;
-                               ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
-                       }
-
-                       send_ldap_sasl( conn, op, rc,
-                               NULL, NULL, NULL, NULL,
-                               response.bv_len ? &response : NULL );
-               }
-#endif
 
        } else if ( sc == SASL_CONTINUE ) {
                send_ldap_sasl( conn, op, rc = LDAP_SASL_BIND_IN_PROGRESS,
@@ -1258,3 +1414,90 @@ char* slap_sasl_secprops( const char *in )
        return "SASL not supported";
 #endif
 }
+
+#ifdef HAVE_CYRUS_SASL
+int
+slap_sasl_setpass(
+       Connection      *conn,
+       Operation       *op,
+       const char      *reqoid,
+       struct berval   *reqdata,
+       char            **rspoid,
+       struct berval   **rspdata,
+       LDAPControl     *** rspctrls,
+       const char      **text )
+{
+       int rc;
+       struct berval id = { 0, NULL }; /* needs to come from connection */
+       struct berval new = { 0, NULL };
+       struct berval old = { 0, NULL };
+
+       assert( reqoid != NULL );
+       assert( strcmp( LDAP_EXOP_MODIFY_PASSWD, reqoid ) == 0 );
+
+       rc = sasl_getprop( conn->c_sasl_context, SASL_USERNAME,
+               (SASL_CONST void **)&id.bv_val );
+
+       if( rc != SASL_OK ) {
+               *text = "unable to retrieve SASL username";
+               rc = LDAP_OTHER;
+               goto done;
+       }
+
+#ifdef NEW_LOGGING
+       LDAP_LOG(( "backend", LDAP_LEVEL_ENTRY,
+               "slap_sasl_setpass: \"%s\"\n",
+               id.bv_val ? id.bv_val : "" ));
+#else
+       Debug( LDAP_DEBUG_ARGS, "==> ldbm_back_exop_passwd: \"%s\"\n",
+               id.bv_val ? id.bv_val : "", 0, 0 );
+#endif
+
+       rc = slap_passwd_parse( reqdata,
+               NULL, &old, &new, text );
+
+       if( rc != LDAP_SUCCESS ) {
+               goto done;
+       }
+
+       if( new.bv_len == 0 ) {
+               slap_passwd_generate(&new);
+
+               if( new.bv_len == 0 ) {
+                       *text = "password generation failed.";
+                       rc = LDAP_OTHER;
+                       goto done;
+               }
+               
+               *rspdata = slap_passwd_return( &new );
+       }
+
+#if SASL_VERSION_MAJOR < 2
+       rc = sasl_setpass( conn->c_sasl_context,
+               id.bv_val, new.bv_val, new.bv_len, 0, text );
+#else
+       rc = sasl_setpass( conn->c_sasl_context, id.bv_val,
+               old.bv_val, old.bv_len, new.bv_val, new.bv_len, 0 );
+       if( rc != SASL_OK ) {
+               *text = sasl_errdetail( conn->c_sasl_context );
+       }
+#endif
+       switch(rc) {
+               case SASL_OK:
+                       rc = LDAP_SUCCESS;
+                       break;
+
+               case SASL_NOCHANGE:
+               case SASL_NOMECH:
+               case SASL_DISABLED:
+               case SASL_PWLOCK:
+               case SASL_FAIL:
+               case SASL_BADPARAM:
+               default:
+                       rc = LDAP_OTHER;
+       }
+
+done:
+       return rc;
+}
+#endif