1 /* $NetBSD: mech_external.c,v 1.3 2011/02/11 23:44:43 christos Exp $ */ 2 3 /* Copyright (c) 2010 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Mateusz Kocielski. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the NetBSD 20 * Foundation, Inc. and its contributors. 21 * 4. Neither the name of The NetBSD Foundation nor the names of its 22 * contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 #include <sys/cdefs.h> 38 __RCSID("$NetBSD: mech_external.c,v 1.3 2011/02/11 23:44:43 christos Exp $"); 39 40 #include <saslc.h> 41 #include <string.h> 42 43 #include "mech.h" 44 #include "saslc_private.h" 45 46 /* See RFC 2222 section 7.4. */ 47 48 /* properties */ 49 #define SASLC_EXTERNAL_AUTHZID SASLC_PROP_AUTHZID 50 51 /** 52 * @brief doing one step of the sasl authentication 53 * @param sess sasl session 54 * @param in input data 55 * @param inlen input data length 56 * @param out place to store output data 57 * @param outlen output data length 58 * @return MECH_OK - success, 59 * MECH_STEP - more steps are needed, 60 * MECH_ERROR - error 61 */ 62 /*ARGSUSED*/ 63 static int 64 saslc__mech_external_cont(saslc_sess_t *sess, const void *in, size_t inlen, 65 void **out, size_t *outlen) 66 { 67 68 return saslc__mech_strdup(sess, (char **)out, outlen, 69 SASLC_EXTERNAL_AUTHZID, 70 "authzid is required for an authentication"); 71 } 72 73 /* mechanism definition */ 74 const saslc__mech_t saslc__mech_external = { 75 .name = "EXTERNAL", 76 .flags = FLAG_NONE, 77 .create = saslc__mech_generic_create, 78 .cont = saslc__mech_external_cont, 79 .encode = NULL, 80 .decode = NULL, 81 .destroy = saslc__mech_generic_destroy 82 }; 83