1/* 2 * Copyright (c) 2007 Kungliga Tekniska H��gskolan 3 * (Royal Institute of Technology, Stockholm, Sweden). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * 3. Neither the name of the Institute nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34/* $Id: gss_pseudo_random.c,v 1.1.1.1 2011/06/10 09:34:42 andrew Exp $ */ 35 36#include "mech_locl.h" 37RCSID("$Id: gss_pseudo_random.c,v 1.1.1.1 2011/06/10 09:34:42 andrew Exp $"); 38 39OM_uint32 GSSAPI_LIB_FUNCTION 40gss_pseudo_random(OM_uint32 *minor_status, 41 gss_ctx_id_t context, 42 int prf_key, 43 const gss_buffer_t prf_in, 44 ssize_t desired_output_len, 45 gss_buffer_t prf_out) 46{ 47 struct _gss_context *ctx = (struct _gss_context *) context; 48 gssapi_mech_interface m; 49 OM_uint32 major_status; 50 51 _mg_buffer_zero(prf_out); 52 *minor_status = 0; 53 54 if (ctx == NULL) { 55 *minor_status = 0; 56 return GSS_S_NO_CONTEXT; 57 } 58 59 m = ctx->gc_mech; 60 61 if (m->gm_pseudo_random == NULL) 62 return GSS_S_UNAVAILABLE; 63 64 major_status = (*m->gm_pseudo_random)(minor_status, ctx->gc_ctx, 65 prf_key, prf_in, desired_output_len, 66 prf_out); 67 if (major_status != GSS_S_COMPLETE) 68 _gss_mg_error(m, major_status, *minor_status); 69 70 return major_status; 71} 72