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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
23 */
24
25 /*
26 * glue routine for gss_export_sec_context
27 */
28 #ifndef LEAN_CLIENT
29
30 #include <mechglueP.h>
31 #include "gssapiP_generic.h"
32 #include <stdio.h>
33 #include <errno.h>
34 #ifdef HAVE_STDLIB_H
35 #include <stdlib.h>
36 #endif
37 #include <string.h>
38
val_exp_sec_ctx_args(OM_uint32 * minor_status,gss_ctx_id_t * context_handle,gss_buffer_t interprocess_token)39 static OM_uint32 val_exp_sec_ctx_args(
40 OM_uint32 *minor_status,
41 gss_ctx_id_t *context_handle,
42 gss_buffer_t interprocess_token)
43 {
44
45 /* Initialize outputs. */
46
47 if (minor_status != NULL)
48 *minor_status = 0;
49
50 if (interprocess_token != GSS_C_NO_BUFFER) {
51 interprocess_token->length = 0;
52 interprocess_token->value = NULL;
53 }
54
55 /* Validate arguments. */
56
57 if (minor_status == NULL)
58 return (GSS_S_CALL_INACCESSIBLE_WRITE);
59
60 if (context_handle == NULL || *context_handle == GSS_C_NO_CONTEXT)
61 return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);
62
63 if (interprocess_token == GSS_C_NO_BUFFER)
64 return (GSS_S_CALL_INACCESSIBLE_WRITE);
65
66 return (GSS_S_COMPLETE);
67 }
68
69 OM_uint32
gss_export_sec_context(minor_status,context_handle,interprocess_token)70 gss_export_sec_context(minor_status,
71 context_handle,
72 interprocess_token)
73
74 OM_uint32 *minor_status;
75 gss_ctx_id_t *context_handle;
76 gss_buffer_t interprocess_token;
77
78 {
79 OM_uint32 status;
80 OM_uint32 length;
81 gss_union_ctx_id_t ctx;
82 gss_mechanism mech;
83 gss_buffer_desc token;
84 char *buf;
85
86 status = val_exp_sec_ctx_args(minor_status,
87 context_handle, interprocess_token);
88 if (status != GSS_S_COMPLETE)
89 return (status);
90
91 /*
92 * select the approprate underlying mechanism routine and
93 * call it.
94 */
95
96 ctx = (gss_union_ctx_id_t)*context_handle;
97 mech = __gss_get_mechanism(ctx->mech_type);
98 if (!mech)
99 return (GSS_S_BAD_MECH);
100 if (!mech->gss_export_sec_context)
101 return (GSS_S_UNAVAILABLE);
102
103 status = mech->gss_export_sec_context(mech->context, minor_status,
104 &ctx->internal_ctx_id, &token);
105 if (status != GSS_S_COMPLETE) {
106 map_error(minor_status, mech);
107 return (status);
108 }
109
110 length = token.length + 4 + ctx->mech_type->length;
111 interprocess_token->length = length;
112 interprocess_token->value = malloc(length);
113 if (interprocess_token->value == 0) {
114 (void) gss_release_buffer(minor_status, &token);
115 return (GSS_S_FAILURE);
116 }
117 buf = interprocess_token->value;
118 length = ctx->mech_type->length;
119 buf[3] = (unsigned char) (length & 0xFF);
120 length >>= 8;
121 buf[2] = (unsigned char) (length & 0xFF);
122 length >>= 8;
123 buf[1] = (unsigned char) (length & 0xFF);
124 length >>= 8;
125 buf[0] = (unsigned char) (length & 0xFF);
126 (void) memcpy(buf+4, ctx->mech_type->elements,
127 (size_t)ctx->mech_type->length);
128 (void) memcpy(buf+4+ctx->mech_type->length, token.value, token.length);
129
130 (void) gss_release_buffer(minor_status, &token);
131
132 free(ctx->mech_type->elements);
133 free(ctx->mech_type);
134 free(ctx);
135 *context_handle = 0;
136
137 return (GSS_S_COMPLETE);
138 }
139 #endif /*LEAN_CLIENT */
140