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 "ntlm.h"
37 
38 void GSSAPI_CALLCONV
39 _gss_ntlm_iter_creds_f(OM_uint32 flags,
40 		       void *userctx ,
41 		       void (*cred_iter)(void *, gss_OID, gss_cred_id_t))
42 {
43 #ifdef HAVE_KCM
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_NTLM_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 	char *user = NULL, *domain = NULL;
65 	ntlm_cred dn;
66 
67 	ret = krb5_ret_uint32(response, &morep);
68 	if (ret) goto out;
69 
70 	if (!morep) goto out;
71 
72 	ret = krb5_ret_stringz(response, &user);
73 	if (ret) goto out;
74 	ret = krb5_ret_stringz(response, &domain);
75 	if (ret) {
76 	    free(user);
77 	    goto out;
78 	}
79 
80 	dn = calloc(1, sizeof(*dn));
81 	if (dn == NULL) {
82 	    free(user);
83 	    free(domain);
84 	    goto out;
85 	}
86 	dn->username = user;
87 	dn->domain = domain;
88 
89 	cred_iter(userctx, GSS_NTLM_MECHANISM, (gss_cred_id_t)dn);
90     }
91  out:
92     krb5_storage_free(response);
93     krb5_data_free(&response_data);
94  done:
95     if (context)
96 	krb5_free_context(context);
97 #endif /* HAVE_KCM */
98     (*cred_iter)(userctx, NULL, NULL);
99 }
100