1 /*- 2 * Copyright (c) 2007 Kungliga Tekniska Högskolan 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 /* $FreeBSD$ */ 34 /* $Id: gss_pseudo_random.c 20053 2007-01-24 01:31:35Z lha $ */ 35 36 #include <gssapi/gssapi.h> 37 38 #include "mech_switch.h" 39 #include "context.h" 40 #include "utils.h" 41 42 OM_uint32 43 gss_pseudo_random(OM_uint32 *minor_status, 44 gss_ctx_id_t context, 45 int prf_key, 46 const gss_buffer_t prf_in, 47 ssize_t desired_output_len, 48 gss_buffer_t prf_out) 49 { 50 struct _gss_context *ctx = (struct _gss_context *) context; 51 struct _gss_mech_switch *m; 52 OM_uint32 major_status; 53 54 _gss_buffer_zero(prf_out); 55 *minor_status = 0; 56 57 if (ctx == NULL) { 58 *minor_status = 0; 59 return GSS_S_NO_CONTEXT; 60 } 61 m = ctx->gc_mech; 62 63 if (m->gm_pseudo_random == NULL) 64 return GSS_S_UNAVAILABLE; 65 66 major_status = (*m->gm_pseudo_random)(minor_status, ctx->gc_ctx, 67 prf_key, prf_in, desired_output_len, 68 prf_out); 69 if (major_status != GSS_S_COMPLETE) 70 _gss_mg_error(m, major_status, *minor_status); 71 72 return major_status; 73 } 74