1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
5 * Authors: Doug Rabson <dfr@rabson.org>
6 * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
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 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD: releng/12.0/sys/kgssapi/gss_wrap.c 326279 2017-11-27 15:49:00Z pfg $");
32
33 #include <sys/param.h>
34 #include <sys/kernel.h>
35 #include <sys/kobj.h>
36 #include <sys/malloc.h>
37 #include <sys/mbuf.h>
38
39 #include <kgssapi/gssapi.h>
40 #include <kgssapi/gssapi_impl.h>
41
42 #include "kgss_if.h"
43
44 OM_uint32
45 gss_wrap(OM_uint32 *minor_status,
46 const gss_ctx_id_t ctx,
47 int conf_req_flag,
48 gss_qop_t qop_req,
49 const gss_buffer_t input_message_buffer,
50 int *conf_state,
51 gss_buffer_t output_message_buffer)
52 {
53 OM_uint32 maj_stat;
54 struct mbuf *m;
55
56 if (!ctx) {
57 *minor_status = 0;
58 return (GSS_S_NO_CONTEXT);
59 }
60
61 MGET(m, M_WAITOK, MT_DATA);
62 if (input_message_buffer->length > MLEN)
63 MCLGET(m, M_WAITOK);
64 m_append(m, input_message_buffer->length, input_message_buffer->value);
65
66 maj_stat = KGSS_WRAP(ctx, minor_status, conf_req_flag, qop_req,
67 &m, conf_state);
68
69 /*
70 * On success, m is the wrapped message, on failure, m is
71 * freed.
72 */
73 if (maj_stat == GSS_S_COMPLETE) {
74 output_message_buffer->length = m_length(m, NULL);
75 output_message_buffer->value =
76 malloc(output_message_buffer->length,
77 M_GSSAPI, M_WAITOK);
78 m_copydata(m, 0, output_message_buffer->length,
79 output_message_buffer->value);
80 m_freem(m);
81 }
82
83 return (maj_stat);
84 }
85
86 OM_uint32
87 gss_wrap_mbuf(OM_uint32 *minor_status, const gss_ctx_id_t ctx,
88 int conf_req_flag, gss_qop_t qop_req, struct mbuf **mp, int *conf_state)
89 {
90
91 if (!ctx) {
92 *minor_status = 0;
93 return (GSS_S_NO_CONTEXT);
94 }
95
96 return (KGSS_WRAP(ctx, minor_status, conf_req_flag, qop_req,
97 mp, conf_state));
98 }
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