1/*
2 * Copyright (c) 2003 Kungliga Tekniska Högskolan
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#include "gsskrb5_locl.h"
35
36OM_uint32 GSSAPI_CALLCONV
37_gsskrb5_store_cred(OM_uint32         *minor_status,
38		    gss_cred_id_t     input_cred_handle,
39		    gss_cred_usage_t  cred_usage,
40		    const gss_OID     desired_mech,
41		    OM_uint32         overwrite_cred,
42		    OM_uint32         default_cred,
43		    gss_OID_set       *elements_stored,
44		    gss_cred_usage_t  *cred_usage_stored)
45{
46    krb5_context context;
47    krb5_error_code ret;
48    gsskrb5_cred cred;
49    krb5_ccache id;
50    int destroy = 0;
51
52    *minor_status = 0;
53
54    if (cred_usage != GSS_C_INITIATE) {
55	*minor_status = GSS_KRB5_S_G_BAD_USAGE;
56	return GSS_S_FAILURE;
57    }
58
59    if (gss_oid_equal(desired_mech, GSS_KRB5_MECHANISM) == 0)
60	return GSS_S_BAD_MECH;
61
62    cred = (gsskrb5_cred)input_cred_handle;
63    if (cred == NULL)
64	return GSS_S_NO_CRED;
65
66    GSSAPI_KRB5_INIT (&context);
67
68    HEIMDAL_MUTEX_lock(&cred->cred_id_mutex);
69    if (cred->usage != cred_usage && cred->usage != GSS_C_BOTH) {
70	HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
71	*minor_status = GSS_KRB5_S_G_BAD_USAGE;
72	return(GSS_S_FAILURE);
73    }
74
75    if (cred->principal == NULL) {
76	HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
77	*minor_status = GSS_KRB5_S_KG_TGT_MISSING;
78	return(GSS_S_FAILURE);
79    }
80
81    /* write out cred to credential cache */
82
83    ret = krb5_cc_cache_match(context, cred->principal, &id);
84    if (ret) {
85	ret = krb5_cc_new_unique(context, NULL, NULL, &id);
86	if (ret) {
87	    HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
88	    *minor_status = ret;
89	    return(GSS_S_FAILURE);
90	}
91	destroy = 1;
92    }
93
94    ret = krb5_cc_initialize(context, id, cred->principal);
95    if (ret == 0)
96	ret = krb5_cc_copy_match_f(context, cred->ccache, id, NULL, NULL, NULL);
97    if (ret) {
98	if (destroy)
99	    krb5_cc_destroy(context, id);
100	else
101	    krb5_cc_close(context, id);
102	HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
103	*minor_status = ret;
104	return(GSS_S_FAILURE);
105    }
106
107    if (default_cred)
108	krb5_cc_switch(context, id);
109
110    krb5_cc_close(context, id);
111
112    HEIMDAL_MUTEX_unlock(&cred->cred_id_mutex);
113
114    *minor_status = 0;
115    return GSS_S_COMPLETE;
116}
117