gss_verify_mic.c revision 184588 
1257648Sian/*-
2257648Sian * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
3257648Sian * Authors: Doug Rabson <dfr@rabson.org>
4257648Sian * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
5257648Sian *
6257648Sian * Redistribution and use in source and binary forms, with or without
7257648Sian * modification, are permitted provided that the following conditions
8257648Sian * are met:
9257648Sian * 1. Redistributions of source code must retain the above copyright
10257648Sian *    notice, this list of conditions and the following disclaimer.
11257648Sian * 2. Redistributions in binary form must reproduce the above copyright
12257648Sian *    notice, this list of conditions and the following disclaimer in the
13257648Sian *    documentation and/or other materials provided with the distribution.
14257648Sian *
15257648Sian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16257648Sian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17257648Sian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18257648Sian * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19257648Sian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20257648Sian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21257648Sian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22257648Sian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23257648Sian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24257648Sian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25257648Sian * SUCH DAMAGE.
26257648Sian */
27257648Sian
28257648Sian#include <sys/cdefs.h>
29257648Sian__FBSDID("$FreeBSD: head/sys/kgssapi/gss_verify_mic.c 184588 2008-11-03 10:38:00Z dfr $");
30257648Sian
31257648Sian#include <sys/param.h>
32257648Sian#include <sys/kernel.h>
33257648Sian#include <sys/kobj.h>
34257648Sian#include <sys/malloc.h>
35257648Sian#include <sys/mbuf.h>
36257648Sian
37257648Sian#include <kgssapi/gssapi.h>
38257648Sian#include <kgssapi/gssapi_impl.h>
39257648Sian
40257648Sian#include "kgss_if.h"
41257648Sian
42257648SianOM_uint32
43257648Siangss_verify_mic(OM_uint32 *minor_status,
44257648Sian    const gss_ctx_id_t ctx,
45257648Sian    const gss_buffer_t message_buffer,
46257648Sian    const gss_buffer_t token_buffer,
47    gss_qop_t *qop_state)
48{
49	OM_uint32 maj_stat;
50	struct mbuf *m, *mic;
51
52	if (!ctx) {
53		*minor_status = 0;
54		return (GSS_S_NO_CONTEXT);
55	}
56
57	MGET(m, M_WAITOK, MT_DATA);
58	if (message_buffer->length > MLEN)
59		MCLGET(m, M_WAITOK);
60	m_append(m, message_buffer->length, message_buffer->value);
61
62	MGET(mic, M_WAITOK, MT_DATA);
63	if (token_buffer->length > MLEN)
64		MCLGET(mic, M_WAITOK);
65	m_append(mic, token_buffer->length, token_buffer->value);
66
67	maj_stat = KGSS_VERIFY_MIC(ctx, minor_status, m, mic, qop_state);
68
69	m_freem(m);
70	m_freem(mic);
71
72	return (maj_stat);
73}
74
75OM_uint32
76gss_verify_mic_mbuf(OM_uint32 *minor_status, const gss_ctx_id_t ctx,
77    struct mbuf *m, struct mbuf *mic, gss_qop_t *qop_state)
78{
79
80	if (!ctx) {
81		*minor_status = 0;
82		return (GSS_S_NO_CONTEXT);
83	}
84
85	return (KGSS_VERIFY_MIC(ctx, minor_status, m, mic, qop_state));
86}
87
88