1 /* apps/s_cb.c */
2 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young (eay@cryptsoft.com).
7  * The implementation was written so as to conform with Netscapes SSL.
8  *
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to.  The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15  *
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  *
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  *    notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  *    notice, this list of conditions and the following disclaimer in the
30  *    documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  *    must display the following acknowledgement:
33  *    "This product includes cryptographic software written by
34  *     Eric Young (eay@cryptsoft.com)"
35  *    The word 'cryptographic' can be left out if the rouines from the library
36  *    being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from
38  *    the apps directory (application code) you must include an acknowledgement:
39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40  *
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  *
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 
59 #include <stdio.h>
60 #include <stdlib.h>
61 #define USE_SOCKETS
62 #define NON_MAIN
63 #include "apps.h"
64 #undef NON_MAIN
65 #undef USE_SOCKETS
66 #include "openssl/err.h"
67 #include "openssl/x509.h"
68 #include "openssl/ssl.h"
69 #include "s_apps.h"
70 
71 int verify_depth=0;
72 int verify_error=X509_V_OK;
73 
74 /* should be X509 * but we can just have them as char *. */
verify_callback(ok,ctx)75 int MS_CALLBACK verify_callback(ok, ctx)
76 int ok;
77 X509_STORE_CTX *ctx;
78 	{
79 	char buf[256];
80 	X509 *err_cert;
81 	int err,depth;
82 
83 	err_cert=X509_STORE_CTX_get_current_cert(ctx);
84 	err=	X509_STORE_CTX_get_error(ctx);
85 	depth=	X509_STORE_CTX_get_error_depth(ctx);
86 
87 	X509_NAME_oneline(X509_get_subject_name(err_cert),buf,256);
88 	BIO_printf(bio_err,"depth=%d %s\n",depth,buf);
89 	if (!ok)
90 		{
91 		BIO_printf(bio_err,"verify error:num=%d:%s\n",err,
92 			X509_verify_cert_error_string(err));
93 		if (verify_depth >= depth)
94 			{
95 			ok=1;
96 			verify_error=X509_V_OK;
97 			}
98 		else
99 			{
100 			ok=0;
101 			verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG;
102 			}
103 		}
104 	switch (ctx->error)
105 		{
106 	case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
107 		X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert),buf,256);
108 		BIO_printf(bio_err,"issuer= %s\n",buf);
109 		break;
110 	case X509_V_ERR_CERT_NOT_YET_VALID:
111 	case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
112 		BIO_printf(bio_err,"notBefore=");
113 		ASN1_UTCTIME_print(bio_err,X509_get_notBefore(ctx->current_cert));
114 		BIO_printf(bio_err,"\n");
115 		break;
116 	case X509_V_ERR_CERT_HAS_EXPIRED:
117 	case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
118 		BIO_printf(bio_err,"notAfter=");
119 		ASN1_UTCTIME_print(bio_err,X509_get_notAfter(ctx->current_cert));
120 		BIO_printf(bio_err,"\n");
121 		break;
122 		}
123 	BIO_printf(bio_err,"verify return:%d\n",ok);
124 	return(ok);
125 	}
126 
set_cert_stuff(ctx,cert_file,key_file)127 int set_cert_stuff(ctx, cert_file, key_file)
128 SSL_CTX *ctx;
129 char *cert_file;
130 char *key_file;
131 	{
132 	if (cert_file != NULL)
133 		{
134 		SSL *ssl;
135 		X509 *x509;
136 
137 		if (SSL_CTX_use_certificate_file(ctx,cert_file,
138 			SSL_FILETYPE_PEM) <= 0)
139 			{
140 			BIO_printf(bio_err,"unable to set certificate file\n");
141 			ERR_print_errors(bio_err);
142 			return(0);
143 			}
144 		if (key_file == NULL) key_file=cert_file;
145 		if (SSL_CTX_use_PrivateKey_file(ctx,key_file,
146 			SSL_FILETYPE_PEM) <= 0)
147 			{
148 			BIO_printf(bio_err,"unable to set public key file\n");
149 			ERR_print_errors(bio_err);
150 			return(0);
151 			}
152 
153 		ssl=SSL_new(ctx);
154 		x509=SSL_get_certificate(ssl);
155 
156 		if (x509 != NULL)
157 			EVP_PKEY_copy_parameters(X509_get_pubkey(x509),
158 				SSL_get_privatekey(ssl));
159 		SSL_free(ssl);
160 
161 		/* If we are using DSA, we can copy the parameters from
162 		 * the private key */
163 
164 
165 		/* Now we know that a key and cert have been set against
166 		 * the SSL context */
167 		if (!SSL_CTX_check_private_key(ctx))
168 			{
169 			BIO_printf(bio_err,"Private key does not match the certificate public key\n");
170 			return(0);
171 			}
172 		}
173 	return(1);
174 	}
175 
bio_dump_cb(bio,cmd,argp,argi,argl,ret)176 long MS_CALLBACK bio_dump_cb(bio,cmd,argp,argi,argl,ret)
177 BIO *bio;
178 int cmd;
179 char *argp;
180 int argi;
181 long argl;
182 long ret;
183 	{
184 	BIO *out;
185 
186 	out=(BIO *)BIO_get_callback_arg(bio);
187 	if (out == NULL) return(ret);
188 
189 	if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
190 		{
191 		BIO_printf(out,"read from %08X [%08lX] (%d bytes => %ld (0x%X))\n",
192 			bio,argp,argi,ret,ret);
193 		BIO_dump(out,argp,(int)ret);
194 		return(ret);
195 		}
196 	else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
197 		{
198 		BIO_printf(out,"write to %08X [%08lX] (%d bytes => %ld (0x%X))\n",
199 			bio,argp,argi,ret,ret);
200 		BIO_dump(out,argp,(int)ret);
201 		}
202 	return(ret);
203 	}
204 
apps_ssl_info_callback(s,where,ret)205 void MS_CALLBACK apps_ssl_info_callback(s,where,ret)
206 SSL *s;
207 int where;
208 int ret;
209 	{
210 	char *str;
211 	int w;
212 
213 	w=where& ~SSL_ST_MASK;
214 
215 	if (w & SSL_ST_CONNECT) str="SSL_connect";
216 	else if (w & SSL_ST_ACCEPT) str="SSL_accept";
217 	else str="undefined";
218 
219 	if (where & SSL_CB_LOOP)
220 		{
221 		BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
222 		}
223 	else if (where & SSL_CB_ALERT)
224 		{
225 		str=(where & SSL_CB_READ)?"read":"write";
226 		BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
227 			str,
228 			SSL_alert_type_string_long(ret),
229 			SSL_alert_desc_string_long(ret));
230 		}
231 	else if (where & SSL_CB_EXIT)
232 		{
233 		if (ret == 0)
234 			BIO_printf(bio_err,"%s:failed in %s\n",
235 				str,SSL_state_string_long(s));
236 		else if (ret < 0)
237 			{
238 			BIO_printf(bio_err,"%s:error in %s\n",
239 				str,SSL_state_string_long(s));
240 			}
241 		}
242 	}
243 
244