1/*
2 * Copyright (c) 2006 Kungliga Tekniska H�gskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Portions Copyright (c) 2009 Apple Inc. 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#include "gssdigest.h"
37#include <gssapi_spi.h>
38
39void
40_gss_scram_iter_creds_f(OM_uint32 flags,
41		       void *userctx ,
42		       void (*cred_iter)(void *, gss_OID, gss_cred_id_t))
43{
44    krb5_error_code ret;
45    krb5_context context = NULL;
46    krb5_storage *request, *response;
47    krb5_data response_data;
48
49    ret = krb5_init_context(&context);
50    if (ret)
51	goto done;
52
53    ret = krb5_kcm_storage_request(context, KCM_OP_GET_SCRAM_USER_LIST, &request);
54    if (ret)
55	goto done;
56
57    ret = krb5_kcm_call(context, request, &response, &response_data);
58    krb5_storage_free(request);
59    if (ret)
60	goto done;
61
62    while (1) {
63	uint32_t morep;
64	kcmuuid_t uuid;
65	char *user = NULL;
66	krb5_ssize_t sret;
67
68	ret = krb5_ret_uint32(response, &morep);
69	if (ret) goto out;
70
71	if (!morep) goto out;
72
73	ret = krb5_ret_stringz(response, &user);
74	if (ret) goto out;
75
76	sret = krb5_storage_read(response, uuid, sizeof(uuid));
77	if (sret != sizeof(uuid))
78	    goto out;
79
80	    cred_iter(userctx, GSS_SCRAM_MECHANISM, (gss_cred_id_t)user);
81    }
82 out:
83    krb5_storage_free(response);
84    krb5_data_free(&response_data);
85 done:
86    if (context)
87	krb5_free_context(context);
88    (*cred_iter)(userctx, NULL, NULL);
89}
90