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  • only in /asuswrt-rt-n18u-9.0.0.4.380.2695/release/src/router/samba-3.5.8/source4/auth/kerberos/
1/*
2 * Copyright (c) 1997 - 2006 Kungliga Tekniska H�gskolan
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
34/* This file for code taken from the Heimdal code, to preserve licence */
35/* Modified by Andrew Bartlett <abartlet@samba.org> */
36
37#include "includes.h"
38#include "system/kerberos.h"
39#include "auth/kerberos/kerberos.h"
40
41/* Taken from  accept_sec_context.c,v 1.65 */
42krb5_error_code smb_rd_req_return_stuff(krb5_context context,
43					krb5_auth_context *auth_context,
44					const krb5_data *inbuf,
45					krb5_keytab keytab,
46					krb5_principal acceptor_principal,
47					krb5_data *outbuf,
48					krb5_ticket **ticket,
49					krb5_keyblock **keyblock)
50{
51	krb5_rd_req_in_ctx in = NULL;
52	krb5_rd_req_out_ctx out = NULL;
53	krb5_error_code kret;
54
55	*keyblock = NULL;
56	*ticket = NULL;
57	outbuf->length = 0;
58	outbuf->data = NULL;
59
60	kret = krb5_rd_req_in_ctx_alloc(context, &in);
61	if (kret == 0)
62	    kret = krb5_rd_req_in_set_keytab(context, in, keytab);
63	if (kret) {
64	    if (in)
65		krb5_rd_req_in_ctx_free(context, in);
66	    return kret;
67	}
68
69	kret = krb5_rd_req_ctx(context,
70			       auth_context,
71			       inbuf,
72			       acceptor_principal,
73			       in, &out);
74	krb5_rd_req_in_ctx_free(context, in);
75	if (kret) {
76	    return kret;
77	}
78
79	/*
80	 * We need to remember some data on the context_handle.
81	 */
82	kret = krb5_rd_req_out_get_ticket(context, out,
83					  ticket);
84	if (kret == 0) {
85	    kret = krb5_rd_req_out_get_keyblock(context, out,
86						keyblock);
87	}
88	krb5_rd_req_out_ctx_free(context, out);
89
90	if (kret == 0) {
91		kret = krb5_mk_rep(context, *auth_context, outbuf);
92	}
93
94	if (kret) {
95		krb5_free_ticket(context, *ticket);
96		krb5_free_keyblock(context, *keyblock);
97		krb5_data_free(outbuf);
98	}
99
100	return kret;
101}
102
103