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 /* $Id: gss_pseudo_random.c 20053 2007-01-24 01:31:35Z lha $ */ 36 37 #include <gssapi/gssapi.h> 38 39 #include "mech_switch.h" 40 #include "context.h" 41 #include "utils.h" 42 43 OM_uint32 44 gss_pseudo_random(OM_uint32 *minor_status, 45 gss_ctx_id_t context, 46 int prf_key, 47 const gss_buffer_t prf_in, 48 ssize_t desired_output_len, 49 gss_buffer_t prf_out) 50 { 51 struct _gss_context *ctx = (struct _gss_context *) context; 52 struct _gss_mech_switch *m; 53 OM_uint32 major_status; 54 55 _gss_buffer_zero(prf_out); 56 *minor_status = 0; 57 58 if (ctx == NULL) { 59 *minor_status = 0; 60 return GSS_S_NO_CONTEXT; 61 } 62 m = ctx->gc_mech; 63 64 if (m->gm_pseudo_random == NULL) 65 return GSS_S_UNAVAILABLE; 66 67 major_status = (*m->gm_pseudo_random)(minor_status, ctx->gc_ctx, 68 prf_key, prf_in, desired_output_len, 69 prf_out); 70 if (major_status != GSS_S_COMPLETE) 71 _gss_mg_error(m, major_status, *minor_status); 72 73 return major_status; 74 } 75