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 /* X509 v3 extension utilities */
58
59 #include <stdio.h>
60
61 #include <openssl/bio.h>
62 #include <openssl/conf.h>
63 #include <openssl/mem.h>
64 #include <openssl/x509v3.h>
65
66
67 /* Extension printing routines */
68
69 static int unknown_ext_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent, int supported);
70
71 /* Print out a name+value stack */
72
X509V3_EXT_val_prn(BIO * out,STACK_OF (CONF_VALUE)* val,int indent,int ml)73 void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) *val, int indent, int ml)
74 {
75 size_t i;
76 CONF_VALUE *nval;
77 if(!val) return;
78 if(!ml || !sk_CONF_VALUE_num(val)) {
79 BIO_printf(out, "%*s", indent, "");
80 if(!sk_CONF_VALUE_num(val)) BIO_puts(out, "<EMPTY>\n");
81 }
82 for(i = 0; i < sk_CONF_VALUE_num(val); i++) {
83 if(ml) BIO_printf(out, "%*s", indent, "");
84 else if(i > 0) BIO_printf(out, ", ");
85 nval = sk_CONF_VALUE_value(val, i);
86 if(!nval->name) BIO_puts(out, nval->value);
87 else if(!nval->value) BIO_puts(out, nval->name);
88 else BIO_printf(out, "%s:%s", nval->name, nval->value);
89 if(ml) BIO_puts(out, "\n");
90 }
91 }
92
93 /* Main routine: print out a general extension */
94
X509V3_EXT_print(BIO * out,X509_EXTENSION * ext,unsigned long flag,int indent)95 int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent)
96 {
97 void *ext_str = NULL;
98 char *value = NULL;
99 const unsigned char *p;
100 const X509V3_EXT_METHOD *method;
101 STACK_OF(CONF_VALUE) *nval = NULL;
102 int ok = 1;
103
104 if(!(method = X509V3_EXT_get(ext)))
105 return unknown_ext_print(out, ext, flag, indent, 0);
106 p = ext->value->data;
107 if(method->it) ext_str = ASN1_item_d2i(NULL, &p, ext->value->length, ASN1_ITEM_ptr(method->it));
108 else ext_str = method->d2i(NULL, &p, ext->value->length);
109
110 if(!ext_str) return unknown_ext_print(out, ext, flag, indent, 1);
111
112 if(method->i2s) {
113 if(!(value = method->i2s(method, ext_str))) {
114 ok = 0;
115 goto err;
116 }
117 BIO_printf(out, "%*s%s", indent, "", value);
118 } else if(method->i2v) {
119 if(!(nval = method->i2v(method, ext_str, NULL))) {
120 ok = 0;
121 goto err;
122 }
123 X509V3_EXT_val_prn(out, nval, indent,
124 method->ext_flags & X509V3_EXT_MULTILINE);
125 } else if(method->i2r) {
126 if(!method->i2r(method, ext_str, out, indent)) ok = 0;
127 } else ok = 0;
128
129 err:
130 sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
131 if(value) OPENSSL_free(value);
132 if(method->it) ASN1_item_free(ext_str, ASN1_ITEM_ptr(method->it));
133 else method->ext_free(ext_str);
134 return ok;
135 }
136
X509V3_extensions_print(BIO * bp,const char * title,STACK_OF (X509_EXTENSION)* exts,unsigned long flag,int indent)137 int X509V3_extensions_print(BIO *bp, const char *title, STACK_OF(X509_EXTENSION) *exts, unsigned long flag, int indent)
138 {
139 size_t i;
140 int j;
141
142 if(sk_X509_EXTENSION_num(exts) <= 0) return 1;
143
144 if(title)
145 {
146 BIO_printf(bp,"%*s%s:\n",indent, "", title);
147 indent += 4;
148 }
149
150 for (i=0; i<sk_X509_EXTENSION_num(exts); i++)
151 {
152 ASN1_OBJECT *obj;
153 X509_EXTENSION *ex;
154 ex=sk_X509_EXTENSION_value(exts, i);
155 if (indent && BIO_printf(bp,"%*s",indent, "") <= 0) return 0;
156 obj=X509_EXTENSION_get_object(ex);
157 i2a_ASN1_OBJECT(bp,obj);
158 j=X509_EXTENSION_get_critical(ex);
159 if (BIO_printf(bp,": %s\n",j?"critical":"") <= 0)
160 return 0;
161 if(!X509V3_EXT_print(bp, ex, flag, indent + 4))
162 {
163 BIO_printf(bp, "%*s", indent + 4, "");
164 M_ASN1_OCTET_STRING_print(bp,ex->value);
165 }
166 if (BIO_write(bp,"\n",1) <= 0) return 0;
167 }
168 return 1;
169 }
170
unknown_ext_print(BIO * out,X509_EXTENSION * ext,unsigned long flag,int indent,int supported)171 static int unknown_ext_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent, int supported)
172 {
173 switch(flag & X509V3_EXT_UNKNOWN_MASK) {
174
175 case X509V3_EXT_DEFAULT:
176 return 0;
177
178 case X509V3_EXT_ERROR_UNKNOWN:
179 if(supported)
180 BIO_printf(out, "%*s<Parse Error>", indent, "");
181 else
182 BIO_printf(out, "%*s<Not Supported>", indent, "");
183 return 1;
184
185 case X509V3_EXT_PARSE_UNKNOWN:
186 return ASN1_parse_dump(out,
187 ext->value->data, ext->value->length, indent, -1);
188 case X509V3_EXT_DUMP_UNKNOWN:
189 return BIO_hexdump(out, ext->value->data, ext->value->length, indent);
190
191 default:
192 return 1;
193 }
194 }
195
196
197 #ifndef OPENSSL_NO_FP_API
X509V3_EXT_print_fp(FILE * fp,X509_EXTENSION * ext,int flag,int indent)198 int X509V3_EXT_print_fp(FILE *fp, X509_EXTENSION *ext, int flag, int indent)
199 {
200 BIO *bio_tmp;
201 int ret;
202 if(!(bio_tmp = BIO_new_fp(fp, BIO_NOCLOSE))) return 0;
203 ret = X509V3_EXT_print(bio_tmp, ext, flag, indent);
204 BIO_free(bio_tmp);
205 return ret;
206 }
207 #endif
208