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