xref: /titanic_41/usr/src/uts/common/gssapi/mechs/krb5/mech/val_cred.c (revision 6a634c9dca3093f3922e4b7ab826d7bdf17bf78e)
1 /*
2  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
3  */
4 /*
5  * Copyright 1997 by Massachusetts Institute of Technology
6  * All Rights Reserved.
7  *
8  * Export of this software from the United States of America may
9  *   require a specific license from the United States Government.
10  *   It is the responsibility of any person or organization contemplating
11  *   export to obtain such a license before exporting.
12  *
13  * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
14  * distribute this software and its documentation for any purpose and
15  * without fee is hereby granted, provided that the above copyright
16  * notice appear in all copies and that both that copyright notice and
17  * this permission notice appear in supporting documentation, and that
18  * the name of M.I.T. not be used in advertising or publicity pertaining
19  * to distribution of the software without specific, written prior
20  * permission.  Furthermore if you modify this software you must label
21  * your software as modified software and not distribute it in such a
22  * fashion that it might be confused with the original M.I.T. software.
23  * M.I.T. makes no representations about the suitability of
24  * this software for any purpose.  It is provided "as is" without express
25  * or implied warranty.
26  *
27  */
28 
29 #include "gssapiP_krb5.h"
30 
31 /*
32  * Check to see whether or not a GSSAPI krb5 credential is valid.  If
33  * it is not, return an error.
34  */
35 
36 OM_uint32
krb5_gss_validate_cred_1(OM_uint32 * minor_status,gss_cred_id_t cred_handle,krb5_context context)37 krb5_gss_validate_cred_1(OM_uint32 *minor_status, gss_cred_id_t cred_handle,
38 			 krb5_context context)
39 {
40     krb5_gss_cred_id_t cred;
41     krb5_error_code code;
42     krb5_principal princ;
43 
44     if (!kg_validate_cred_id(cred_handle)) {
45 	*minor_status = (OM_uint32) G_VALIDATE_FAILED;
46 	return(GSS_S_CALL_BAD_STRUCTURE|GSS_S_DEFECTIVE_CREDENTIAL);
47     }
48 
49     cred = (krb5_gss_cred_id_t) cred_handle;
50 
51     code = k5_mutex_lock(&cred->lock);
52     if (code) {
53 	*minor_status = code;
54 	return GSS_S_FAILURE;
55     }
56 
57     if (cred->ccache) {
58 	if ((code = krb5_cc_get_principal(context, cred->ccache, &princ))) {
59 	    k5_mutex_unlock(&cred->lock);
60 	    *minor_status = code;
61 	    return(GSS_S_DEFECTIVE_CREDENTIAL);
62 	}
63 	if (!krb5_principal_compare(context, princ, cred->princ)) {
64 	    k5_mutex_unlock(&cred->lock);
65 	    *minor_status = KG_CCACHE_NOMATCH;
66 	    return(GSS_S_DEFECTIVE_CREDENTIAL);
67 	}
68 	(void)krb5_free_principal(context, princ);
69     }
70     *minor_status = 0;
71     return GSS_S_COMPLETE;
72 }
73 
74 OM_uint32
krb5_gss_validate_cred(minor_status,cred_handle)75 krb5_gss_validate_cred(minor_status, cred_handle)
76      OM_uint32 *minor_status;
77      gss_cred_id_t cred_handle;
78 {
79     krb5_context context;
80     krb5_error_code code;
81     OM_uint32 maj;
82 
83     code = krb5_gss_init_context(&context);
84     if (code) {
85 	*minor_status = code;
86 	return GSS_S_FAILURE;
87     }
88 
89     maj = krb5_gss_validate_cred_1(minor_status, cred_handle, context);
90     if (maj == 0) {
91 	krb5_gss_cred_id_t cred = (krb5_gss_cred_id_t) cred_handle;
92 	k5_mutex_assert_locked(&cred->lock);
93 	k5_mutex_unlock(&cred->lock);
94     } else /* Solaris Kerberos - added this else */
95         save_error_info(*minor_status, context);
96     krb5_free_context(context);
97     return maj;
98 }
99 
100 
101 
102 
103