1 /*
2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
3 */
4 /*
5 * lib/gssapi/krb5/export_name.c
6 *
7 * Copyright 1997 by the Massachusetts Institute of Technology.
8 * All Rights Reserved.
9 *
10 * Export of this software from the United States of America may
11 * require a specific license from the United States Government.
12 * It is the responsibility of any person or organization contemplating
13 * export to obtain such a license before exporting.
14 *
15 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
16 * distribute this software and its documentation for any purpose and
17 * without fee is hereby granted, provided that the above copyright
18 * notice appear in all copies and that both that copyright notice and
19 * this permission notice appear in supporting documentation, and that
20 * the name of M.I.T. not be used in advertising or publicity pertaining
21 * to distribution of the software without specific, written prior
22 * permission. Furthermore if you modify this software you must label
23 * your software as modified software and not distribute it in such a
24 * fashion that it might be confused with the original M.I.T. software.
25 * M.I.T. makes no representations about the suitability of
26 * this software for any purpose. It is provided "as is" without express
27 * or implied warranty.
28 *
29 */
30
31 #include "gssapiP_krb5.h"
32
krb5_gss_export_name(OM_uint32 * minor_status,const gss_name_t input_name,gss_buffer_t exported_name)33 OM_uint32 krb5_gss_export_name(OM_uint32 *minor_status,
34 const gss_name_t input_name,
35 gss_buffer_t exported_name)
36 {
37 krb5_context context;
38 krb5_error_code code;
39 size_t length;
40 char *str, *cp;
41
42 if (minor_status)
43 *minor_status = 0;
44
45 code = krb5_gss_init_context(&context);
46 if (code) {
47 if (minor_status)
48 *minor_status = code;
49 return GSS_S_FAILURE;
50 }
51
52 exported_name->length = 0;
53 exported_name->value = NULL;
54
55 if (! kg_validate_name(input_name)) {
56 /* Solaris Kerberos: spruce-up the err msg */
57 krb5_principal princ = (krb5_principal) input_name;
58 char *s_name = NULL;
59 int kret = krb5_unparse_name(context, princ, &s_name);
60 if (minor_status)
61 *minor_status = (OM_uint32) G_VALIDATE_FAILED;
62 if (minor_status && kret == 0) {
63 krb5_set_error_message(context, *minor_status,
64 "Input name principal '%s' is invalid (kg_validate_name()) for export_name",
65 s_name);
66 save_error_info(*minor_status, context);
67 krb5_free_unparsed_name(context, s_name);
68 }
69 krb5_free_context(context);
70 return(GSS_S_CALL_BAD_STRUCTURE|GSS_S_BAD_NAME);
71 }
72
73 if ((code = krb5_unparse_name(context, (krb5_principal) input_name,
74 &str))) {
75 if (minor_status)
76 *minor_status = code;
77 save_error_info((OM_uint32)code, context);
78 krb5_free_context(context);
79 return(GSS_S_FAILURE);
80 }
81
82 krb5_free_context(context);
83 length = strlen(str);
84 exported_name->length = 10 + length + gss_mech_krb5->length;
85 exported_name->value = malloc(exported_name->length);
86 if (!exported_name->value) {
87 free(str);
88 if (minor_status)
89 *minor_status = ENOMEM;
90 return(GSS_S_FAILURE);
91 }
92 cp = exported_name->value;
93
94 /* Note: we assume the OID will be less than 128 bytes... */
95 *cp++ = 0x04; *cp++ = 0x01;
96 *cp++ = (gss_mech_krb5->length+2) >> 8;
97 *cp++ = (gss_mech_krb5->length+2) & 0xFF;
98 *cp++ = 0x06;
99 *cp++ = (gss_mech_krb5->length) & 0xFF;
100 memcpy(cp, gss_mech_krb5->elements, gss_mech_krb5->length);
101 cp += gss_mech_krb5->length;
102 *cp++ = length >> 24;
103 *cp++ = length >> 16;
104 *cp++ = length >> 8;
105 *cp++ = length & 0xFF;
106 memcpy(cp, str, length);
107
108 free(str);
109
110 return(GSS_S_COMPLETE);
111 }
112