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.
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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);
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 *policy = ASN1_OCTET_STRING_new();
121 if (*policy == NULL) {
122 X509V3err(X509V3_F_PROCESS_PCI_VALUE, ERR_R_MALLOC_FAILURE);
123 X509V3_conf_err(val);
128 if (strncmp(val->value, "hex:", 4) == 0) {
129 unsigned char *tmp_data2 =
130 OPENSSL_hexstr2buf(val->value + 4, &val_len);
133 X509V3_conf_err(val);
137 tmp_data = OPENSSL_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';
146 OPENSSL_free(tmp_data2);
148 * realloc failure implies the original data space is b0rked
151 OPENSSL_free((*policy)->data);
152 (*policy)->data = NULL;
153 (*policy)->length = 0;
154 X509V3err(X509V3_F_PROCESS_PCI_VALUE, ERR_R_MALLOC_FAILURE);
155 X509V3_conf_err(val);
158 OPENSSL_free(tmp_data2);
159 } else if (strncmp(val->value, "file:", 5) == 0) {
160 unsigned char buf[2048];
162 BIO *b = BIO_new_file(val->value + 5, "r");
164 X509V3err(X509V3_F_PROCESS_PCI_VALUE, ERR_R_BIO_LIB);
165 X509V3_conf_err(val);
168 while ((n = BIO_read(b, buf, sizeof(buf))) > 0
169 || (n == 0 && BIO_should_retry(b))) {
173 tmp_data = OPENSSL_realloc((*policy)->data,
174 (*policy)->length + n + 1);
177 OPENSSL_free((*policy)->data);
178 (*policy)->data = NULL;
179 (*policy)->length = 0;
180 X509V3err(X509V3_F_PROCESS_PCI_VALUE,
181 ERR_R_MALLOC_FAILURE);
182 X509V3_conf_err(val);
187 (*policy)->data = tmp_data;
188 memcpy(&(*policy)->data[(*policy)->length], buf, n);
189 (*policy)->length += n;
190 (*policy)->data[(*policy)->length] = '\0';
195 X509V3err(X509V3_F_PROCESS_PCI_VALUE, ERR_R_BIO_LIB);
196 X509V3_conf_err(val);
199 } else if (strncmp(val->value, "text:", 5) == 0) {
200 val_len = strlen(val->value + 5);
201 tmp_data = OPENSSL_realloc((*policy)->data,
202 (*policy)->length + val_len + 1);
204 (*policy)->data = tmp_data;
205 memcpy(&(*policy)->data[(*policy)->length],
206 val->value + 5, val_len);
207 (*policy)->length += val_len;
208 (*policy)->data[(*policy)->length] = '\0';
211 * realloc failure implies the original data space is b0rked
214 OPENSSL_free((*policy)->data);
215 (*policy)->data = NULL;
216 (*policy)->length = 0;
217 X509V3err(X509V3_F_PROCESS_PCI_VALUE, ERR_R_MALLOC_FAILURE);
218 X509V3_conf_err(val);
222 X509V3err(X509V3_F_PROCESS_PCI_VALUE,
223 X509V3_R_INCORRECT_POLICY_SYNTAX_TAG);
224 X509V3_conf_err(val);
228 X509V3err(X509V3_F_PROCESS_PCI_VALUE, ERR_R_MALLOC_FAILURE);
229 X509V3_conf_err(val);
236 ASN1_OCTET_STRING_free(*policy);
242 static PROXY_CERT_INFO_EXTENSION *r2i_pci(X509V3_EXT_METHOD *method,
243 X509V3_CTX *ctx, char *value)
245 PROXY_CERT_INFO_EXTENSION *pci = NULL;
246 STACK_OF(CONF_VALUE) *vals;
247 ASN1_OBJECT *language = NULL;
248 ASN1_INTEGER *pathlen = NULL;
249 ASN1_OCTET_STRING *policy = NULL;
252 vals = X509V3_parse_list(value);
253 for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
254 CONF_VALUE *cnf = sk_CONF_VALUE_value(vals, i);
255 if (!cnf->name || (*cnf->name != '@' && !cnf->value)) {
256 X509V3err(X509V3_F_R2I_PCI,
257 X509V3_R_INVALID_PROXY_POLICY_SETTING);
258 X509V3_conf_err(cnf);
261 if (*cnf->name == '@') {
262 STACK_OF(CONF_VALUE) *sect;
265 sect = X509V3_get_section(ctx, cnf->name + 1);
267 X509V3err(X509V3_F_R2I_PCI, X509V3_R_INVALID_SECTION);
268 X509V3_conf_err(cnf);
271 for (j = 0; success_p && j < sk_CONF_VALUE_num(sect); j++) {
273 process_pci_value(sk_CONF_VALUE_value(sect, j),
274 &language, &pathlen, &policy);
276 X509V3_section_free(ctx, sect);
280 if (!process_pci_value(cnf, &language, &pathlen, &policy)) {
281 X509V3_conf_err(cnf);
287 /* Language is mandatory */
289 X509V3err(X509V3_F_R2I_PCI,
290 X509V3_R_NO_PROXY_CERT_POLICY_LANGUAGE_DEFINED);
293 i = OBJ_obj2nid(language);
294 if ((i == NID_Independent || i == NID_id_ppl_inheritAll) && policy) {
295 X509V3err(X509V3_F_R2I_PCI,
296 X509V3_R_POLICY_WHEN_PROXY_LANGUAGE_REQUIRES_NO_POLICY);
300 pci = PROXY_CERT_INFO_EXTENSION_new();
302 X509V3err(X509V3_F_R2I_PCI, ERR_R_MALLOC_FAILURE);
306 pci->proxyPolicy->policyLanguage = language;
308 pci->proxyPolicy->policy = policy;
310 pci->pcPathLengthConstraint = pathlen;
314 ASN1_OBJECT_free(language);
315 ASN1_INTEGER_free(pathlen);
317 ASN1_OCTET_STRING_free(policy);
319 PROXY_CERT_INFO_EXTENSION_free(pci);
322 sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);