1 /* $NetBSD: gss_pseudo_random.c,v 1.2 2017/01/28 21:31:46 christos Exp $ */
2
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
36 /* Id */
37
38 #include "mech_locl.h"
39
40 GSSAPI_LIB_FUNCTION OM_uint32 GSSAPI_LIB_CALL
gss_pseudo_random(OM_uint32 * minor_status,gss_ctx_id_t context,int prf_key,const gss_buffer_t prf_in,ssize_t desired_output_len,gss_buffer_t prf_out)41 gss_pseudo_random(OM_uint32 *minor_status,
42 gss_ctx_id_t context,
43 int prf_key,
44 const gss_buffer_t prf_in,
45 ssize_t desired_output_len,
46 gss_buffer_t prf_out)
47 {
48 struct _gss_context *ctx = (struct _gss_context *) context;
49 gssapi_mech_interface m;
50 OM_uint32 major_status;
51
52 _mg_buffer_zero(prf_out);
53 *minor_status = 0;
54
55 if (ctx == NULL) {
56 *minor_status = 0;
57 return GSS_S_NO_CONTEXT;
58 }
59
60 m = ctx->gc_mech;
61
62 if (m->gm_pseudo_random == NULL)
63 return GSS_S_UNAVAILABLE;
64
65 major_status = (*m->gm_pseudo_random)(minor_status, ctx->gc_ctx,
66 prf_key, prf_in, desired_output_len,
67 prf_out);
68 if (major_status != GSS_S_COMPLETE)
69 _gss_mg_error(m, major_status, *minor_status);
70
71 return major_status;
72 }
73