1 /* $OpenBSD: v3_pci.c,v 1.12 2017/01/29 17:49:23 beck Exp $ */
2 /* Contributed to the OpenSSL Project 2004
3 * by Richard Levitte (richard@levitte.org)
5 /* Copyright (c) 2004 Kungliga Tekniska Högskolan
6 * (Royal Institute of Technology, Stockholm, Sweden).
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the Institute nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 #include <openssl/conf.h>
41 #include <openssl/err.h>
42 #include <openssl/x509v3.h>
44 static int i2r_pci(X509V3_EXT_METHOD
*method
, PROXY_CERT_INFO_EXTENSION
*ext
,
45 BIO
*out
, int indent
);
46 static PROXY_CERT_INFO_EXTENSION
*r2i_pci(X509V3_EXT_METHOD
*method
,
47 X509V3_CTX
*ctx
, char *str
);
49 const X509V3_EXT_METHOD v3_pci
= {
50 .ext_nid
= NID_proxyCertInfo
,
52 .it
= &PROXY_CERT_INFO_EXTENSION_it
,
61 .i2r
= (X509V3_EXT_I2R
)i2r_pci
,
62 .r2i
= (X509V3_EXT_R2I
)r2i_pci
,
67 i2r_pci(X509V3_EXT_METHOD
*method
, PROXY_CERT_INFO_EXTENSION
*pci
, BIO
*out
,
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
);
79 if (pci
->proxyPolicy
->policy
&& pci
->proxyPolicy
->policy
->data
)
80 BIO_printf(out
, "%*sPolicy Text: %s\n", indent
, "",
81 pci
->proxyPolicy
->policy
->data
);
86 process_pci_value(CONF_VALUE
*val
, ASN1_OBJECT
**language
,
87 ASN1_INTEGER
**pathlen
, ASN1_OCTET_STRING
**policy
)
91 if (strcmp(val
->name
, "language") == 0) {
93 X509V3error(X509V3_R_POLICY_LANGUAGE_ALREADY_DEFINED
);
97 if (!(*language
= OBJ_txt2obj(val
->value
, 0))) {
98 X509V3error(X509V3_R_INVALID_OBJECT_IDENTIFIER
);
103 else if (strcmp(val
->name
, "pathlen") == 0) {
105 X509V3error(X509V3_R_POLICY_PATH_LENGTH_ALREADY_DEFINED
);
106 X509V3_conf_err(val
);
109 if (!X509V3_get_value_int(val
, pathlen
)) {
110 X509V3error(X509V3_R_POLICY_PATH_LENGTH
);
111 X509V3_conf_err(val
);
115 else if (strcmp(val
->name
, "policy") == 0) {
116 unsigned char *tmp_data
= NULL
;
119 *policy
= ASN1_OCTET_STRING_new();
121 X509V3error(ERR_R_MALLOC_FAILURE
);
122 X509V3_conf_err(val
);
127 if (strncmp(val
->value
, "hex:", 4) == 0) {
128 unsigned char *tmp_data2
=
129 string_to_hex(val
->value
+ 4, &val_len
);
132 X509V3error(X509V3_R_ILLEGAL_HEX_DIGIT
);
133 X509V3_conf_err(val
);
137 tmp_data
= realloc((*policy
)->data
,
138 (*policy
)->length
+ val_len
+ 1);
140 (*policy
)->data
= tmp_data
;
141 memcpy(&(*policy
)->data
[(*policy
)->length
],
143 (*policy
)->length
+= val_len
;
144 (*policy
)->data
[(*policy
)->length
] = '\0';
147 free((*policy
)->data
);
148 (*policy
)->data
= NULL
;
149 (*policy
)->length
= 0;
150 X509V3error(ERR_R_MALLOC_FAILURE
);
151 X509V3_conf_err(val
);
156 else if (strncmp(val
->value
, "file:", 5) == 0) {
157 unsigned char buf
[2048];
159 BIO
*b
= BIO_new_file(val
->value
+ 5, "r");
161 X509V3error(ERR_R_BIO_LIB
);
162 X509V3_conf_err(val
);
165 while ((n
= BIO_read(b
, buf
, sizeof(buf
))) > 0 ||
166 (n
== 0 && BIO_should_retry(b
))) {
170 tmp_data
= realloc((*policy
)->data
,
171 (*policy
)->length
+ n
+ 1);
176 (*policy
)->data
= tmp_data
;
177 memcpy(&(*policy
)->data
[(*policy
)->length
],
179 (*policy
)->length
+= n
;
180 (*policy
)->data
[(*policy
)->length
] = '\0';
185 X509V3error(ERR_R_BIO_LIB
);
186 X509V3_conf_err(val
);
190 else if (strncmp(val
->value
, "text:", 5) == 0) {
191 val_len
= strlen(val
->value
+ 5);
192 tmp_data
= realloc((*policy
)->data
,
193 (*policy
)->length
+ val_len
+ 1);
195 (*policy
)->data
= tmp_data
;
196 memcpy(&(*policy
)->data
[(*policy
)->length
],
197 val
->value
+ 5, val_len
);
198 (*policy
)->length
+= val_len
;
199 (*policy
)->data
[(*policy
)->length
] = '\0';
201 free((*policy
)->data
);
202 (*policy
)->data
= NULL
;
203 (*policy
)->length
= 0;
204 X509V3error(ERR_R_MALLOC_FAILURE
);
205 X509V3_conf_err(val
);
209 X509V3error(X509V3_R_INCORRECT_POLICY_SYNTAX_TAG
);
210 X509V3_conf_err(val
);
214 X509V3error(ERR_R_MALLOC_FAILURE
);
215 X509V3_conf_err(val
);
223 ASN1_OCTET_STRING_free(*policy
);
229 static PROXY_CERT_INFO_EXTENSION
*
230 r2i_pci(X509V3_EXT_METHOD
*method
, X509V3_CTX
*ctx
, char *value
)
232 PROXY_CERT_INFO_EXTENSION
*pci
= NULL
;
233 STACK_OF(CONF_VALUE
) *vals
;
234 ASN1_OBJECT
*language
= NULL
;
235 ASN1_INTEGER
*pathlen
= NULL
;
236 ASN1_OCTET_STRING
*policy
= NULL
;
239 vals
= X509V3_parse_list(value
);
240 for (i
= 0; i
< sk_CONF_VALUE_num(vals
); i
++) {
241 CONF_VALUE
*cnf
= sk_CONF_VALUE_value(vals
, i
);
242 if (!cnf
->name
|| (*cnf
->name
!= '@' && !cnf
->value
)) {
243 X509V3error(X509V3_R_INVALID_PROXY_POLICY_SETTING
);
244 X509V3_conf_err(cnf
);
247 if (*cnf
->name
== '@') {
248 STACK_OF(CONF_VALUE
) *sect
;
251 sect
= X509V3_get_section(ctx
, cnf
->name
+ 1);
253 X509V3error(X509V3_R_INVALID_SECTION
);
254 X509V3_conf_err(cnf
);
257 for (j
= 0; success_p
&&
258 j
< sk_CONF_VALUE_num(sect
); j
++) {
259 success_p
= process_pci_value(
260 sk_CONF_VALUE_value(sect
, j
),
261 &language
, &pathlen
, &policy
);
263 X509V3_section_free(ctx
, sect
);
267 if (!process_pci_value(cnf
,
268 &language
, &pathlen
, &policy
)) {
269 X509V3_conf_err(cnf
);
275 /* Language is mandatory */
277 X509V3error(X509V3_R_NO_PROXY_CERT_POLICY_LANGUAGE_DEFINED
);
280 i
= OBJ_obj2nid(language
);
281 if ((i
== NID_Independent
|| i
== NID_id_ppl_inheritAll
) && policy
) {
282 X509V3error(X509V3_R_POLICY_WHEN_PROXY_LANGUAGE_REQUIRES_NO_POLICY
);
286 pci
= PROXY_CERT_INFO_EXTENSION_new();
288 X509V3error(ERR_R_MALLOC_FAILURE
);
292 pci
->proxyPolicy
->policyLanguage
= language
;
294 pci
->proxyPolicy
->policy
= policy
;
296 pci
->pcPathLengthConstraint
= pathlen
;
302 ASN1_OBJECT_free(language
);
306 ASN1_INTEGER_free(pathlen
);
310 ASN1_OCTET_STRING_free(policy
);
314 sk_CONF_VALUE_pop_free(vals
, X509V3_conf_free
);