2 * Copyright 2004-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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.
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19 * modification, are permitted provided that the following conditions
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23 * notice, this list of conditions and the following disclaimer.
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30 * may be used to endorse or promote products derived from this software
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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);
79 if (pci->proxyPolicy->policy && pci->proxyPolicy->policy->data)
80 BIO_printf(out, "%*sPolicy Text: %s\n", indent, "",
81 pci->proxyPolicy->policy->data);
85 static int process_pci_value(CONF_VALUE *val,
86 ASN1_OBJECT **language, ASN1_INTEGER **pathlen,
87 ASN1_OCTET_STRING **policy)
91 if (strcmp(val->name, "language") == 0) {
93 X509V3err(X509V3_F_PROCESS_PCI_VALUE,
94 X509V3_R_POLICY_LANGUAGE_ALREADY_DEFINED);
98 if ((*language = OBJ_txt2obj(val->value, 0)) == NULL) {
99 X509V3err(X509V3_F_PROCESS_PCI_VALUE,
100 X509V3_R_INVALID_OBJECT_IDENTIFIER);
101 X509V3_conf_err(val);
104 } else if (strcmp(val->name, "pathlen") == 0) {
106 X509V3err(X509V3_F_PROCESS_PCI_VALUE,
107 X509V3_R_POLICY_PATH_LENGTH_ALREADY_DEFINED);
108 X509V3_conf_err(val);
111 if (!X509V3_get_value_int(val, pathlen)) {
112 X509V3err(X509V3_F_PROCESS_PCI_VALUE,
113 X509V3_R_POLICY_PATH_LENGTH);
114 X509V3_conf_err(val);
117 } else if (strcmp(val->name, "policy") == 0) {
118 unsigned char *tmp_data = 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);