1 /* v3_pci.c -*- mode:C; c-file-style: "eay" -*- */
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
39 #include <openssl/conf.h>
40 #include <openssl/x509v3.h>
42 static int i2r_pci(X509V3_EXT_METHOD *method, PROXY_CERT_INFO_EXTENSION *ext,
43 BIO *out, int indent);
44 static PROXY_CERT_INFO_EXTENSION *r2i_pci(X509V3_EXT_METHOD *method,
45 X509V3_CTX *ctx, char *str);
47 const X509V3_EXT_METHOD v3_pci =
48 { NID_proxyCertInfo, 0, ASN1_ITEM_ref(PROXY_CERT_INFO_EXTENSION),
52 (X509V3_EXT_I2R)i2r_pci,
53 (X509V3_EXT_R2I)r2i_pci,
57 static int i2r_pci(X509V3_EXT_METHOD *method, PROXY_CERT_INFO_EXTENSION *pci,
60 BIO_printf(out, "%*sPath Length Constraint: ", indent, "");
61 if (pci->pcPathLengthConstraint)
62 i2a_ASN1_INTEGER(out, pci->pcPathLengthConstraint);
64 BIO_printf(out, "infinite");
66 BIO_printf(out, "%*sPolicy Language: ", indent, "");
67 i2a_ASN1_OBJECT(out, pci->proxyPolicy->policyLanguage);
69 if (pci->proxyPolicy->policy && pci->proxyPolicy->policy->data)
70 BIO_printf(out, "%*sPolicy Text: %s\n", indent, "",
71 pci->proxyPolicy->policy->data);
75 static int process_pci_value(CONF_VALUE *val,
76 ASN1_OBJECT **language, ASN1_INTEGER **pathlen,
77 ASN1_OCTET_STRING **policy)
81 if (strcmp(val->name, "language") == 0)
85 X509V3err(X509V3_F_PROCESS_PCI_VALUE,X509V3_R_POLICY_LANGUAGE_ALREADY_DEFINED);
89 if (!(*language = OBJ_txt2obj(val->value, 0)))
91 X509V3err(X509V3_F_PROCESS_PCI_VALUE,X509V3_R_INVALID_OBJECT_IDENTIFIER);
96 else if (strcmp(val->name, "pathlen") == 0)
100 X509V3err(X509V3_F_PROCESS_PCI_VALUE,X509V3_R_POLICY_PATH_LENGTH_ALREADY_DEFINED);
101 X509V3_conf_err(val);
104 if (!X509V3_get_value_int(val, pathlen))
106 X509V3err(X509V3_F_PROCESS_PCI_VALUE,X509V3_R_POLICY_PATH_LENGTH);
107 X509V3_conf_err(val);
111 else if (strcmp(val->name, "policy") == 0)
113 unsigned char *tmp_data = NULL;
117 *policy = ASN1_OCTET_STRING_new();
120 X509V3err(X509V3_F_PROCESS_PCI_VALUE,ERR_R_MALLOC_FAILURE);
121 X509V3_conf_err(val);
126 if (strncmp(val->value, "hex:", 4) == 0)
128 unsigned char *tmp_data2 =
129 string_to_hex(val->value + 4, &val_len);
133 X509V3err(X509V3_F_PROCESS_PCI_VALUE,X509V3_R_ILLEGAL_HEX_DIGIT);
134 X509V3_conf_err(val);
138 tmp_data = OPENSSL_realloc((*policy)->data,
139 (*policy)->length + val_len + 1);
142 (*policy)->data = tmp_data;
143 memcpy(&(*policy)->data[(*policy)->length],
145 (*policy)->length += val_len;
146 (*policy)->data[(*policy)->length] = '\0';
150 OPENSSL_free(tmp_data2);
151 /* realloc failure implies the original data space is b0rked too! */
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);
160 else if (strncmp(val->value, "file:", 5) == 0)
162 unsigned char buf[2048];
164 BIO *b = BIO_new_file(val->value + 5, "r");
167 X509V3err(X509V3_F_PROCESS_PCI_VALUE,ERR_R_BIO_LIB);
168 X509V3_conf_err(val);
171 while((n = BIO_read(b, buf, sizeof(buf))) > 0
172 || (n == 0 && BIO_should_retry(b)))
176 tmp_data = OPENSSL_realloc((*policy)->data,
177 (*policy)->length + n + 1);
182 (*policy)->data = tmp_data;
183 memcpy(&(*policy)->data[(*policy)->length],
185 (*policy)->length += n;
186 (*policy)->data[(*policy)->length] = '\0';
192 X509V3err(X509V3_F_PROCESS_PCI_VALUE,ERR_R_BIO_LIB);
193 X509V3_conf_err(val);
197 else if (strncmp(val->value, "text:", 5) == 0)
199 val_len = strlen(val->value + 5);
200 tmp_data = OPENSSL_realloc((*policy)->data,
201 (*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';
212 /* realloc failure implies the original data space is b0rked too! */
213 (*policy)->data = NULL;
214 (*policy)->length = 0;
215 X509V3err(X509V3_F_PROCESS_PCI_VALUE,ERR_R_MALLOC_FAILURE);
216 X509V3_conf_err(val);
222 X509V3err(X509V3_F_PROCESS_PCI_VALUE,X509V3_R_INCORRECT_POLICY_SYNTAX_TAG);
223 X509V3_conf_err(val);
228 X509V3err(X509V3_F_PROCESS_PCI_VALUE,ERR_R_MALLOC_FAILURE);
229 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++)
256 CONF_VALUE *cnf = sk_CONF_VALUE_value(vals, i);
257 if (!cnf->name || (*cnf->name != '@' && !cnf->value))
259 X509V3err(X509V3_F_R2I_PCI,X509V3_R_INVALID_PROXY_POLICY_SETTING);
260 X509V3_conf_err(cnf);
263 if (*cnf->name == '@')
265 STACK_OF(CONF_VALUE) *sect;
268 sect = X509V3_get_section(ctx, cnf->name + 1);
271 X509V3err(X509V3_F_R2I_PCI,X509V3_R_INVALID_SECTION);
272 X509V3_conf_err(cnf);
275 for (j = 0; success_p && j < sk_CONF_VALUE_num(sect); j++)
278 process_pci_value(sk_CONF_VALUE_value(sect, j),
279 &language, &pathlen, &policy);
281 X509V3_section_free(ctx, sect);
287 if (!process_pci_value(cnf,
288 &language, &pathlen, &policy))
290 X509V3_conf_err(cnf);
296 /* Language is mandatory */
299 X509V3err(X509V3_F_R2I_PCI,X509V3_R_NO_PROXY_CERT_POLICY_LANGUAGE_DEFINED);
302 i = OBJ_obj2nid(language);
303 if ((i == NID_Independent || i == NID_id_ppl_inheritAll) && policy)
305 X509V3err(X509V3_F_R2I_PCI,X509V3_R_POLICY_WHEN_PROXY_LANGUAGE_REQUIRES_NO_POLICY);
309 pci = PROXY_CERT_INFO_EXTENSION_new();
312 X509V3err(X509V3_F_R2I_PCI,ERR_R_MALLOC_FAILURE);
316 pci->proxyPolicy->policyLanguage = language; language = NULL;
317 pci->proxyPolicy->policy = policy; policy = NULL;
318 pci->pcPathLengthConstraint = pathlen; pathlen = NULL;
321 if (language) { ASN1_OBJECT_free(language); language = NULL; }
322 if (pathlen) { ASN1_INTEGER_free(pathlen); pathlen = NULL; }
323 if (policy) { ASN1_OCTET_STRING_free(policy); policy = NULL; }
324 if (pci) { PROXY_CERT_INFO_EXTENSION_free(pci); pci = NULL; }
326 sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);