2 * Copyright 2004-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 * This file is dual-licensed and is also available under the following
14 * Copyright (c) 2004 Kungliga Tekniska Högskolan
15 * (Royal Institute of Technology, Stockholm, Sweden).
16 * All rights reserved.
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
22 * 1. Redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer.
25 * 2. Redistributions in binary form must reproduce the above copyright
26 * notice, this list of conditions and the following disclaimer in the
27 * documentation and/or other materials provided with the distribution.
29 * 3. Neither the name of the Institute nor the names of its contributors
30 * may be used to endorse or promote products derived from this software
31 * without specific prior written permission.
33 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
34 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
35 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
36 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
37 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
38 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
39 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
41 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
42 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47 #include "internal/cryptlib.h"
48 #include <openssl/conf.h>
49 #include <openssl/x509v3.h>
52 static int i2r_pci(X509V3_EXT_METHOD
*method
, PROXY_CERT_INFO_EXTENSION
*ext
,
53 BIO
*out
, int indent
);
54 static PROXY_CERT_INFO_EXTENSION
*r2i_pci(X509V3_EXT_METHOD
*method
,
55 X509V3_CTX
*ctx
, char *str
);
57 const X509V3_EXT_METHOD v3_pci
=
58 { NID_proxyCertInfo
, 0, ASN1_ITEM_ref(PROXY_CERT_INFO_EXTENSION
),
62 (X509V3_EXT_I2R
)i2r_pci
,
63 (X509V3_EXT_R2I
)r2i_pci
,
67 static int i2r_pci(X509V3_EXT_METHOD
*method
, PROXY_CERT_INFO_EXTENSION
*pci
,
70 BIO_printf(out
, "%*sPath Length Constraint: ", indent
, "");
71 if (pci
->pcPathLengthConstraint
)
72 i2a_ASN1_INTEGER(out
, pci
->pcPathLengthConstraint
);
74 BIO_printf(out
, "infinite");
76 BIO_printf(out
, "%*sPolicy Language: ", indent
, "");
77 i2a_ASN1_OBJECT(out
, pci
->proxyPolicy
->policyLanguage
);
78 if (pci
->proxyPolicy
->policy
&& pci
->proxyPolicy
->policy
->data
)
79 BIO_printf(out
, "\n%*sPolicy Text: %s", indent
, "",
80 pci
->proxyPolicy
->policy
->data
);
84 static int process_pci_value(CONF_VALUE
*val
,
85 ASN1_OBJECT
**language
, ASN1_INTEGER
**pathlen
,
86 ASN1_OCTET_STRING
**policy
)
90 if (strcmp(val
->name
, "language") == 0) {
92 X509V3err(X509V3_F_PROCESS_PCI_VALUE
,
93 X509V3_R_POLICY_LANGUAGE_ALREADY_DEFINED
);
97 if ((*language
= OBJ_txt2obj(val
->value
, 0)) == NULL
) {
98 X509V3err(X509V3_F_PROCESS_PCI_VALUE
,
99 X509V3_R_INVALID_OBJECT_IDENTIFIER
);
100 X509V3_conf_err(val
);
103 } else if (strcmp(val
->name
, "pathlen") == 0) {
105 X509V3err(X509V3_F_PROCESS_PCI_VALUE
,
106 X509V3_R_POLICY_PATH_LENGTH_ALREADY_DEFINED
);
107 X509V3_conf_err(val
);
110 if (!X509V3_get_value_int(val
, pathlen
)) {
111 X509V3err(X509V3_F_PROCESS_PCI_VALUE
,
112 X509V3_R_POLICY_PATH_LENGTH
);
113 X509V3_conf_err(val
);
116 } else if (strcmp(val
->name
, "policy") == 0) {
117 unsigned char *tmp_data
= NULL
;
120 if (*policy
== NULL
) {
121 *policy
= ASN1_OCTET_STRING_new();
122 if (*policy
== NULL
) {
123 X509V3err(X509V3_F_PROCESS_PCI_VALUE
, ERR_R_MALLOC_FAILURE
);
124 X509V3_conf_err(val
);
129 if (strncmp(val
->value
, "hex:", 4) == 0) {
130 unsigned char *tmp_data2
=
131 OPENSSL_hexstr2buf(val
->value
+ 4, &val_len
);
134 X509V3_conf_err(val
);
138 tmp_data
= OPENSSL_realloc((*policy
)->data
,
139 (*policy
)->length
+ val_len
+ 1);
141 (*policy
)->data
= tmp_data
;
142 memcpy(&(*policy
)->data
[(*policy
)->length
],
144 (*policy
)->length
+= val_len
;
145 (*policy
)->data
[(*policy
)->length
] = '\0';
147 OPENSSL_free(tmp_data2
);
149 * realloc failure implies the original data space is b0rked
152 OPENSSL_free((*policy
)->data
);
153 (*policy
)->data
= NULL
;
154 (*policy
)->length
= 0;
155 X509V3err(X509V3_F_PROCESS_PCI_VALUE
, ERR_R_MALLOC_FAILURE
);
156 X509V3_conf_err(val
);
159 OPENSSL_free(tmp_data2
);
160 } else if (strncmp(val
->value
, "file:", 5) == 0) {
161 unsigned char buf
[2048];
163 BIO
*b
= BIO_new_file(val
->value
+ 5, "r");
165 X509V3err(X509V3_F_PROCESS_PCI_VALUE
, ERR_R_BIO_LIB
);
166 X509V3_conf_err(val
);
169 while ((n
= BIO_read(b
, buf
, sizeof(buf
))) > 0
170 || (n
== 0 && BIO_should_retry(b
))) {
174 tmp_data
= OPENSSL_realloc((*policy
)->data
,
175 (*policy
)->length
+ n
+ 1);
178 OPENSSL_free((*policy
)->data
);
179 (*policy
)->data
= NULL
;
180 (*policy
)->length
= 0;
181 X509V3err(X509V3_F_PROCESS_PCI_VALUE
,
182 ERR_R_MALLOC_FAILURE
);
183 X509V3_conf_err(val
);
188 (*policy
)->data
= tmp_data
;
189 memcpy(&(*policy
)->data
[(*policy
)->length
], buf
, n
);
190 (*policy
)->length
+= n
;
191 (*policy
)->data
[(*policy
)->length
] = '\0';
196 X509V3err(X509V3_F_PROCESS_PCI_VALUE
, ERR_R_BIO_LIB
);
197 X509V3_conf_err(val
);
200 } else if (strncmp(val
->value
, "text:", 5) == 0) {
201 val_len
= strlen(val
->value
+ 5);
202 tmp_data
= OPENSSL_realloc((*policy
)->data
,
203 (*policy
)->length
+ val_len
+ 1);
205 (*policy
)->data
= tmp_data
;
206 memcpy(&(*policy
)->data
[(*policy
)->length
],
207 val
->value
+ 5, val_len
);
208 (*policy
)->length
+= val_len
;
209 (*policy
)->data
[(*policy
)->length
] = '\0';
212 * realloc failure implies the original data space is b0rked
215 OPENSSL_free((*policy
)->data
);
216 (*policy
)->data
= NULL
;
217 (*policy
)->length
= 0;
218 X509V3err(X509V3_F_PROCESS_PCI_VALUE
, ERR_R_MALLOC_FAILURE
);
219 X509V3_conf_err(val
);
223 X509V3err(X509V3_F_PROCESS_PCI_VALUE
,
224 X509V3_R_INCORRECT_POLICY_SYNTAX_TAG
);
225 X509V3_conf_err(val
);
229 X509V3err(X509V3_F_PROCESS_PCI_VALUE
, ERR_R_MALLOC_FAILURE
);
230 X509V3_conf_err(val
);
237 ASN1_OCTET_STRING_free(*policy
);
243 static PROXY_CERT_INFO_EXTENSION
*r2i_pci(X509V3_EXT_METHOD
*method
,
244 X509V3_CTX
*ctx
, char *value
)
246 PROXY_CERT_INFO_EXTENSION
*pci
= NULL
;
247 STACK_OF(CONF_VALUE
) *vals
;
248 ASN1_OBJECT
*language
= NULL
;
249 ASN1_INTEGER
*pathlen
= NULL
;
250 ASN1_OCTET_STRING
*policy
= NULL
;
253 vals
= X509V3_parse_list(value
);
254 for (i
= 0; i
< sk_CONF_VALUE_num(vals
); i
++) {
255 CONF_VALUE
*cnf
= sk_CONF_VALUE_value(vals
, i
);
256 if (!cnf
->name
|| (*cnf
->name
!= '@' && !cnf
->value
)) {
257 X509V3err(X509V3_F_R2I_PCI
,
258 X509V3_R_INVALID_PROXY_POLICY_SETTING
);
259 X509V3_conf_err(cnf
);
262 if (*cnf
->name
== '@') {
263 STACK_OF(CONF_VALUE
) *sect
;
266 sect
= X509V3_get_section(ctx
, cnf
->name
+ 1);
268 X509V3err(X509V3_F_R2I_PCI
, X509V3_R_INVALID_SECTION
);
269 X509V3_conf_err(cnf
);
272 for (j
= 0; success_p
&& j
< sk_CONF_VALUE_num(sect
); j
++) {
274 process_pci_value(sk_CONF_VALUE_value(sect
, j
),
275 &language
, &pathlen
, &policy
);
277 X509V3_section_free(ctx
, sect
);
281 if (!process_pci_value(cnf
, &language
, &pathlen
, &policy
)) {
282 X509V3_conf_err(cnf
);
288 /* Language is mandatory */
290 X509V3err(X509V3_F_R2I_PCI
,
291 X509V3_R_NO_PROXY_CERT_POLICY_LANGUAGE_DEFINED
);
294 i
= OBJ_obj2nid(language
);
295 if ((i
== NID_Independent
|| i
== NID_id_ppl_inheritAll
) && policy
) {
296 X509V3err(X509V3_F_R2I_PCI
,
297 X509V3_R_POLICY_WHEN_PROXY_LANGUAGE_REQUIRES_NO_POLICY
);
301 pci
= PROXY_CERT_INFO_EXTENSION_new();
303 X509V3err(X509V3_F_R2I_PCI
, ERR_R_MALLOC_FAILURE
);
307 pci
->proxyPolicy
->policyLanguage
= language
;
309 pci
->proxyPolicy
->policy
= policy
;
311 pci
->pcPathLengthConstraint
= pathlen
;
315 ASN1_OBJECT_free(language
);
316 ASN1_INTEGER_free(pathlen
);
318 ASN1_OCTET_STRING_free(policy
);
320 PROXY_CERT_INFO_EXTENSION_free(pci
);
323 sk_CONF_VALUE_pop_free(vals
, X509V3_conf_free
);