Line data Source code
1 : /* v3_prn.c */
2 : /*
3 : * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 : * 1999.
5 : */
6 : /* ====================================================================
7 : * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
8 : *
9 : * Redistribution and use in source and binary forms, with or without
10 : * modification, are permitted provided that the following conditions
11 : * are met:
12 : *
13 : * 1. Redistributions of source code must retain the above copyright
14 : * notice, this list of conditions and the following disclaimer.
15 : *
16 : * 2. Redistributions in binary form must reproduce the above copyright
17 : * notice, this list of conditions and the following disclaimer in
18 : * the documentation and/or other materials provided with the
19 : * distribution.
20 : *
21 : * 3. All advertising materials mentioning features or use of this
22 : * software must display the following acknowledgment:
23 : * "This product includes software developed by the OpenSSL Project
24 : * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 : *
26 : * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 : * endorse or promote products derived from this software without
28 : * prior written permission. For written permission, please contact
29 : * licensing@OpenSSL.org.
30 : *
31 : * 5. Products derived from this software may not be called "OpenSSL"
32 : * nor may "OpenSSL" appear in their names without prior written
33 : * permission of the OpenSSL Project.
34 : *
35 : * 6. Redistributions of any form whatsoever must retain the following
36 : * acknowledgment:
37 : * "This product includes software developed by the OpenSSL Project
38 : * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 : *
40 : * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 : * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 : * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 : * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 : * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 : * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 : * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 : * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 : * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 : * OF THE POSSIBILITY OF SUCH DAMAGE.
52 : * ====================================================================
53 : *
54 : * This product includes cryptographic software written by Eric Young
55 : * (eay@cryptsoft.com). This product includes software written by Tim
56 : * Hudson (tjh@cryptsoft.com).
57 : *
58 : */
59 : /* X509 v3 extension utilities */
60 :
61 : #include <stdio.h>
62 : #include "cryptlib.h"
63 : #include <openssl/conf.h>
64 : #include <openssl/x509v3.h>
65 :
66 : /* Extension printing routines */
67 :
68 : static int unknown_ext_print(BIO *out, X509_EXTENSION *ext,
69 : unsigned long flag, int indent, int supported);
70 :
71 : /* Print out a name+value stack */
72 :
73 0 : void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) *val, int indent,
74 : int ml)
75 : {
76 : int i;
77 : CONF_VALUE *nval;
78 0 : if (!val)
79 0 : return;
80 0 : if (!ml || !sk_CONF_VALUE_num(val)) {
81 0 : BIO_printf(out, "%*s", indent, "");
82 0 : if (!sk_CONF_VALUE_num(val))
83 0 : BIO_puts(out, "<EMPTY>\n");
84 : }
85 0 : for (i = 0; i < sk_CONF_VALUE_num(val); i++) {
86 0 : if (ml)
87 0 : BIO_printf(out, "%*s", indent, "");
88 0 : else if (i > 0)
89 0 : BIO_printf(out, ", ");
90 0 : nval = sk_CONF_VALUE_value(val, i);
91 0 : if (!nval->name)
92 0 : BIO_puts(out, nval->value);
93 0 : else if (!nval->value)
94 0 : BIO_puts(out, nval->name);
95 : #ifndef CHARSET_EBCDIC
96 : else
97 0 : BIO_printf(out, "%s:%s", nval->name, nval->value);
98 : #else
99 : else {
100 : int len;
101 : char *tmp;
102 : len = strlen(nval->value) + 1;
103 : tmp = OPENSSL_malloc(len);
104 : if (tmp) {
105 : ascii2ebcdic(tmp, nval->value, len);
106 : BIO_printf(out, "%s:%s", nval->name, tmp);
107 : OPENSSL_free(tmp);
108 : }
109 : }
110 : #endif
111 0 : if (ml)
112 0 : BIO_puts(out, "\n");
113 : }
114 : }
115 :
116 : /* Main routine: print out a general extension */
117 :
118 0 : int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, unsigned long flag,
119 : int indent)
120 : {
121 : void *ext_str = NULL;
122 : char *value = NULL;
123 : const unsigned char *p;
124 : const X509V3_EXT_METHOD *method;
125 : STACK_OF(CONF_VALUE) *nval = NULL;
126 : int ok = 1;
127 :
128 0 : if (!(method = X509V3_EXT_get(ext)))
129 0 : return unknown_ext_print(out, ext, flag, indent, 0);
130 0 : p = ext->value->data;
131 0 : if (method->it)
132 0 : ext_str =
133 0 : ASN1_item_d2i(NULL, &p, ext->value->length,
134 : ASN1_ITEM_ptr(method->it));
135 : else
136 0 : ext_str = method->d2i(NULL, &p, ext->value->length);
137 :
138 0 : if (!ext_str)
139 0 : return unknown_ext_print(out, ext, flag, indent, 1);
140 :
141 0 : if (method->i2s) {
142 0 : if (!(value = method->i2s(method, ext_str))) {
143 : ok = 0;
144 : goto err;
145 : }
146 : #ifndef CHARSET_EBCDIC
147 0 : BIO_printf(out, "%*s%s", indent, "", value);
148 : #else
149 : {
150 : int len;
151 : char *tmp;
152 : len = strlen(value) + 1;
153 : tmp = OPENSSL_malloc(len);
154 : if (tmp) {
155 : ascii2ebcdic(tmp, value, len);
156 : BIO_printf(out, "%*s%s", indent, "", tmp);
157 : OPENSSL_free(tmp);
158 : }
159 : }
160 : #endif
161 0 : } else if (method->i2v) {
162 0 : if (!(nval = method->i2v(method, ext_str, NULL))) {
163 : ok = 0;
164 : goto err;
165 : }
166 0 : X509V3_EXT_val_prn(out, nval, indent,
167 0 : method->ext_flags & X509V3_EXT_MULTILINE);
168 0 : } else if (method->i2r) {
169 0 : if (!method->i2r(method, ext_str, out, indent))
170 : ok = 0;
171 : } else
172 : ok = 0;
173 :
174 : err:
175 0 : sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
176 0 : if (value)
177 0 : OPENSSL_free(value);
178 0 : if (method->it)
179 0 : ASN1_item_free(ext_str, ASN1_ITEM_ptr(method->it));
180 : else
181 0 : method->ext_free(ext_str);
182 0 : return ok;
183 : }
184 :
185 0 : int X509V3_extensions_print(BIO *bp, char *title,
186 : STACK_OF(X509_EXTENSION) *exts,
187 : unsigned long flag, int indent)
188 : {
189 : int i, j;
190 :
191 0 : if (sk_X509_EXTENSION_num(exts) <= 0)
192 : return 1;
193 :
194 0 : if (title) {
195 0 : BIO_printf(bp, "%*s%s:\n", indent, "", title);
196 0 : indent += 4;
197 : }
198 :
199 0 : for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
200 : ASN1_OBJECT *obj;
201 : X509_EXTENSION *ex;
202 0 : ex = sk_X509_EXTENSION_value(exts, i);
203 0 : if (indent && BIO_printf(bp, "%*s", indent, "") <= 0)
204 : return 0;
205 0 : obj = X509_EXTENSION_get_object(ex);
206 0 : i2a_ASN1_OBJECT(bp, obj);
207 0 : j = X509_EXTENSION_get_critical(ex);
208 0 : if (BIO_printf(bp, ": %s\n", j ? "critical" : "") <= 0)
209 : return 0;
210 0 : if (!X509V3_EXT_print(bp, ex, flag, indent + 4)) {
211 0 : BIO_printf(bp, "%*s", indent + 4, "");
212 0 : M_ASN1_OCTET_STRING_print(bp, ex->value);
213 : }
214 0 : if (BIO_write(bp, "\n", 1) <= 0)
215 : return 0;
216 : }
217 : return 1;
218 : }
219 :
220 0 : static int unknown_ext_print(BIO *out, X509_EXTENSION *ext,
221 : unsigned long flag, int indent, int supported)
222 : {
223 0 : switch (flag & X509V3_EXT_UNKNOWN_MASK) {
224 :
225 : case X509V3_EXT_DEFAULT:
226 : return 0;
227 :
228 : case X509V3_EXT_ERROR_UNKNOWN:
229 0 : if (supported)
230 0 : BIO_printf(out, "%*s<Parse Error>", indent, "");
231 : else
232 0 : BIO_printf(out, "%*s<Not Supported>", indent, "");
233 : return 1;
234 :
235 : case X509V3_EXT_PARSE_UNKNOWN:
236 0 : return ASN1_parse_dump(out,
237 0 : ext->value->data, ext->value->length, indent,
238 : -1);
239 : case X509V3_EXT_DUMP_UNKNOWN:
240 0 : return BIO_dump_indent(out, (char *)ext->value->data,
241 0 : ext->value->length, indent);
242 :
243 : default:
244 : return 1;
245 : }
246 : }
247 :
248 : #ifndef OPENSSL_NO_FP_API
249 0 : int X509V3_EXT_print_fp(FILE *fp, X509_EXTENSION *ext, int flag, int indent)
250 : {
251 : BIO *bio_tmp;
252 : int ret;
253 0 : if (!(bio_tmp = BIO_new_fp(fp, BIO_NOCLOSE)))
254 : return 0;
255 0 : ret = X509V3_EXT_print(bio_tmp, ext, flag, indent);
256 0 : BIO_free(bio_tmp);
257 0 : return ret;
258 : }
259 : #endif
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