xref: /illumos-gate/usr/src/uts/common/gssapi/gss_import_name.c (revision dd51520e127b452179a2ce4ea3bd8dee949f9afe)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*
30  *  glue routine gss_import_name
31  *
32  */
33 
34 #include "mechglueP.h"
35 #include <sys/errno.h>
36 OM_uint32
37 gss_import_name(
38 	OM_uint32 *minor_status,
39 	const gss_buffer_t input_name_buffer,
40 	const gss_OID input_name_type,
41 	gss_name_t *output_name)
42 
43 {
44 	gss_union_name_t	union_name;
45 	OM_uint32		major_status = GSS_S_FAILURE;
46 
47 	if (minor_status)
48 		*minor_status = 0;
49 
50 	/* if output_name is NULL, simply return */
51 
52 	if (output_name == NULL)
53 		return (GSS_S_COMPLETE);
54 
55 	*output_name = 0;
56 
57 	if (input_name_buffer == GSS_C_NO_BUFFER || input_name_type == NULL)
58 		return (GSS_S_BAD_NAME);
59 
60 	/*
61 	 * First create the union name struct that will hold the external
62 	 * name and the name type.
63 	 */
64 
65 	union_name = (gss_union_name_t) MALLOC(sizeof (gss_union_name_desc));
66 
67 	if (!union_name) {
68 		*minor_status = ENOMEM;
69 		goto allocation_failure;
70 	}
71 	union_name->mech_type = 0;
72 	union_name->mech_name = 0;
73 	union_name->name_type = 0;
74 	union_name->external_name = 0;
75 
76 	/*
77 	 * All we do here is record the external name and name_type.
78 	 * When the name is actually used, the underlying gss_import_name()
79 	 * is called for the appropriate mechanism.
80 	 * Since the name type may be a constant or comming from the
81 	 * rpc resoults, we must make a copy.
82 	 */
83 	union_name->external_name =
84 	(gss_buffer_t) MALLOC(sizeof (gss_buffer_desc));
85 
86 	if (!union_name->external_name) {
87 		*minor_status = ENOMEM;
88 		goto allocation_failure;
89 	}
90 
91 	union_name->external_name->length = input_name_buffer->length;
92 	union_name->external_name->value =
93 	(void *) MALLOC(input_name_buffer->length);
94 
95 	if (!union_name->external_name->value) {
96 		*minor_status = ENOMEM;
97 		goto allocation_failure;
98 	}
99 
100 	(void) memcpy(union_name->external_name->value,
101 	    input_name_buffer->value, input_name_buffer->length);
102 
103 	/*
104 	 * making a copy of the name_type structure and elements
105 	 * we now delete it when calling gss_release_name
106 	 */
107 	union_name->name_type = (gss_OID) MALLOC(sizeof (gss_OID_desc));
108 
109 	if (!union_name->name_type) {
110 		*minor_status = ENOMEM;
111 		goto allocation_failure;
112 	}
113 
114 	union_name->name_type->elements = (void *)
115 		MALLOC(input_name_type->length);
116 
117 	if (!union_name->name_type->elements) {
118 		*minor_status = ENOMEM;
119 		goto allocation_failure;
120 	}
121 
122 	(void) memcpy(union_name->name_type->elements,
123 		input_name_type->elements, input_name_type->length);
124 	union_name->name_type->length = input_name_type->length;
125 
126 	*output_name = (gss_name_t) union_name;
127 
128 	return (GSS_S_COMPLETE);
129 
130 allocation_failure:
131 	if (union_name) {
132 
133 		if (union_name->external_name) {
134 			if (union_name->external_name->value)
135 				FREE(union_name->external_name->value,
136 					union_name->external_name->length);
137 			FREE(union_name->external_name,
138 				sizeof (gss_buffer_desc));
139 		}
140 
141 		if (union_name->name_type) {
142 			FREE(union_name->name_type, sizeof (gss_OID_desc));
143 		}
144 		FREE(union_name, sizeof (gss_union_name_desc));
145 	}
146 	return (major_status);
147 }
148