1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2007 Kungliga Tekniska Högskolan 5 * (Royal Institute of Technology, Stockholm, Sweden). 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * 3. Neither the name of the Institute nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 /* $FreeBSD$ */ 36 /* $Id: gss_pseudo_random.c 20053 2007-01-24 01:31:35Z lha $ */ 37 38 #include <gssapi/gssapi.h> 39 40 #include "mech_switch.h" 41 #include "context.h" 42 #include "utils.h" 43 44 OM_uint32 45 gss_pseudo_random(OM_uint32 *minor_status, 46 gss_ctx_id_t context, 47 int prf_key, 48 const gss_buffer_t prf_in, 49 ssize_t desired_output_len, 50 gss_buffer_t prf_out) 51 { 52 struct _gss_context *ctx = (struct _gss_context *) context; 53 struct _gss_mech_switch *m; 54 OM_uint32 major_status; 55 56 _gss_buffer_zero(prf_out); 57 *minor_status = 0; 58 59 if (ctx == NULL) { 60 *minor_status = 0; 61 return GSS_S_NO_CONTEXT; 62 } 63 m = ctx->gc_mech; 64 65 if (m->gm_pseudo_random == NULL) 66 return GSS_S_UNAVAILABLE; 67 68 major_status = (*m->gm_pseudo_random)(minor_status, ctx->gc_ctx, 69 prf_key, prf_in, desired_output_len, 70 prf_out); 71 if (major_status != GSS_S_COMPLETE) 72 _gss_mg_error(m, major_status, *minor_status); 73 74 return major_status; 75 } 76