1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 #include <sys/param.h> 32 #include <sys/kernel.h> 33 #include <sys/kobj.h> 34 #include <sys/malloc.h> 35 #include <sys/mbuf.h> 36 37 #include <kgssapi/gssapi.h> 38 #include <kgssapi/gssapi_impl.h> 39 40 #include "kgss_if.h" 41 42 OM_uint32 43 gss_unwrap(OM_uint32 *minor_status, 44 const gss_ctx_id_t ctx, 45 const gss_buffer_t input_message_buffer, 46 gss_buffer_t output_message_buffer, 47 int *conf_state, 48 gss_qop_t *qop_state) 49 { 50 OM_uint32 maj_stat; 51 struct mbuf *m; 52 53 if (!ctx) { 54 *minor_status = 0; 55 return (GSS_S_NO_CONTEXT); 56 } 57 58 MGET(m, M_WAITOK, MT_DATA); 59 if (input_message_buffer->length > MLEN) 60 MCLGET(m, M_WAITOK); 61 m_append(m, input_message_buffer->length, input_message_buffer->value); 62 63 maj_stat = KGSS_UNWRAP(ctx, minor_status, &m, conf_state, qop_state); 64 65 /* 66 * On success, m is the wrapped message, on failure, m is 67 * freed. 68 */ 69 if (maj_stat == GSS_S_COMPLETE) { 70 output_message_buffer->length = m_length(m, NULL); 71 output_message_buffer->value = 72 malloc(output_message_buffer->length, 73 M_GSSAPI, M_WAITOK); 74 m_copydata(m, 0, output_message_buffer->length, 75 output_message_buffer->value); 76 m_freem(m); 77 } 78 79 return (maj_stat); 80 } 81 82 OM_uint32 83 gss_unwrap_mbuf(OM_uint32 *minor_status, 84 const gss_ctx_id_t ctx, 85 struct mbuf **mp, 86 int *conf_state, 87 gss_qop_t *qop_state) 88 { 89 90 if (!ctx) { 91 *minor_status = 0; 92 return (GSS_S_NO_CONTEXT); 93 } 94 95 return (KGSS_UNWRAP(ctx, minor_status, mp, conf_state, qop_state)); 96 } 97