1 /* apps/s_cb.c - callback functions used by s_client, s_server, and s_time */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
58 /* ====================================================================
59 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
119 #include <openssl/err.h>
120 #include <openssl/rand.h>
121 #include <openssl/x509.h>
122 #include <openssl/ssl.h>
125 #define COOKIE_SECRET_LENGTH 16
128 int verify_error=X509_V_OK;
129 unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
130 int cookie_initialized=0;
132 int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
138 err_cert=X509_STORE_CTX_get_current_cert(ctx);
139 err= X509_STORE_CTX_get_error(ctx);
140 depth= X509_STORE_CTX_get_error_depth(ctx);
142 X509_NAME_oneline(X509_get_subject_name(err_cert),buf,sizeof buf);
143 BIO_printf(bio_err,"depth=%d %s\n",depth,buf);
146 BIO_printf(bio_err,"verify error:num=%d:%s\n",err,
147 X509_verify_cert_error_string(err));
148 if (verify_depth >= depth)
151 verify_error=X509_V_OK;
156 verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG;
161 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
162 X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert),buf,sizeof buf);
163 BIO_printf(bio_err,"issuer= %s\n",buf);
165 case X509_V_ERR_CERT_NOT_YET_VALID:
166 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
167 BIO_printf(bio_err,"notBefore=");
168 ASN1_TIME_print(bio_err,X509_get_notBefore(ctx->current_cert));
169 BIO_printf(bio_err,"\n");
171 case X509_V_ERR_CERT_HAS_EXPIRED:
172 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
173 BIO_printf(bio_err,"notAfter=");
174 ASN1_TIME_print(bio_err,X509_get_notAfter(ctx->current_cert));
175 BIO_printf(bio_err,"\n");
178 BIO_printf(bio_err,"verify return:%d\n",ok);
182 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
184 if (cert_file != NULL)
191 if (SSL_CTX_use_certificate_file(ctx,cert_file,
192 SSL_FILETYPE_PEM) <= 0)
194 BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file);
195 ERR_print_errors(bio_err);
198 if (key_file == NULL) key_file=cert_file;
199 if (SSL_CTX_use_PrivateKey_file(ctx,key_file,
200 SSL_FILETYPE_PEM) <= 0)
202 BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file);
203 ERR_print_errors(bio_err);
208 In theory this is no longer needed
210 x509=SSL_get_certificate(ssl);
214 pktmp = X509_get_pubkey(x509);
215 EVP_PKEY_copy_parameters(pktmp,
216 SSL_get_privatekey(ssl));
217 EVP_PKEY_free(pktmp);
222 /* If we are using DSA, we can copy the parameters from
226 /* Now we know that a key and cert have been set against
228 if (!SSL_CTX_check_private_key(ctx))
230 BIO_printf(bio_err,"Private key does not match the certificate public key\n");
237 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key)
241 if (SSL_CTX_use_certificate(ctx,cert) <= 0)
243 BIO_printf(bio_err,"error setting certificate\n");
244 ERR_print_errors(bio_err);
247 if (SSL_CTX_use_PrivateKey(ctx,key) <= 0)
249 BIO_printf(bio_err,"error setting private key\n");
250 ERR_print_errors(bio_err);
255 /* Now we know that a key and cert have been set against
257 if (!SSL_CTX_check_private_key(ctx))
259 BIO_printf(bio_err,"Private key does not match the certificate public key\n");
265 long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
266 int argi, long argl, long ret)
270 out=(BIO *)BIO_get_callback_arg(bio);
271 if (out == NULL) return(ret);
273 if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
275 BIO_printf(out,"read from %p [%p] (%d bytes => %ld (0x%lX))\n",
276 (void *)bio,argp,argi,ret,ret);
277 BIO_dump(out,argp,(int)ret);
280 else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
282 BIO_printf(out,"write to %p [%p] (%d bytes => %ld (0x%lX))\n",
283 (void *)bio,argp,argi,ret,ret);
284 BIO_dump(out,argp,(int)ret);
289 void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
294 w=where& ~SSL_ST_MASK;
296 if (w & SSL_ST_CONNECT) str="SSL_connect";
297 else if (w & SSL_ST_ACCEPT) str="SSL_accept";
298 else str="undefined";
300 if (where & SSL_CB_LOOP)
302 BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
304 else if (where & SSL_CB_ALERT)
306 str=(where & SSL_CB_READ)?"read":"write";
307 BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
309 SSL_alert_type_string_long(ret),
310 SSL_alert_desc_string_long(ret));
312 else if (where & SSL_CB_EXIT)
315 BIO_printf(bio_err,"%s:failed in %s\n",
316 str,SSL_state_string_long(s));
319 BIO_printf(bio_err,"%s:error in %s\n",
320 str,SSL_state_string_long(s));
326 void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
329 const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
331 str_write_p = write_p ? ">>>" : "<<<";
336 str_version = "SSL 2.0";
339 str_version = "SSL 3.0 ";
342 str_version = "TLS 1.0 ";
347 str_version = "DTLS 1.0 ";
350 str_version = "DTLS 1.0 (bad) ";
354 if (version == SSL2_VERSION)
356 str_details1 = "???";
360 switch (((const unsigned char*)buf)[0])
363 str_details1 = ", ERROR:";
364 str_details2 = " ???";
367 unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2];
372 str_details2 = " NO-CIPHER-ERROR";
375 str_details2 = " NO-CERTIFICATE-ERROR";
378 str_details2 = " BAD-CERTIFICATE-ERROR";
381 str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
388 str_details1 = ", CLIENT-HELLO";
391 str_details1 = ", CLIENT-MASTER-KEY";
394 str_details1 = ", CLIENT-FINISHED";
397 str_details1 = ", SERVER-HELLO";
400 str_details1 = ", SERVER-VERIFY";
403 str_details1 = ", SERVER-FINISHED";
406 str_details1 = ", REQUEST-CERTIFICATE";
409 str_details1 = ", CLIENT-CERTIFICATE";
415 if (version == SSL3_VERSION ||
416 version == TLS1_VERSION ||
417 version == DTLS1_VERSION ||
418 version == DTLS1_BAD_VER)
420 switch (content_type)
423 str_content_type = "ChangeCipherSpec";
426 str_content_type = "Alert";
429 str_content_type = "Handshake";
433 if (content_type == 21) /* Alert */
435 str_details1 = ", ???";
439 switch (((const unsigned char*)buf)[0])
442 str_details1 = ", warning";
445 str_details1 = ", fatal";
449 str_details2 = " ???";
450 switch (((const unsigned char*)buf)[1])
453 str_details2 = " close_notify";
456 str_details2 = " unexpected_message";
459 str_details2 = " bad_record_mac";
462 str_details2 = " decryption_failed";
465 str_details2 = " record_overflow";
468 str_details2 = " decompression_failure";
471 str_details2 = " handshake_failure";
474 str_details2 = " bad_certificate";
477 str_details2 = " unsupported_certificate";
480 str_details2 = " certificate_revoked";
483 str_details2 = " certificate_expired";
486 str_details2 = " certificate_unknown";
489 str_details2 = " illegal_parameter";
492 str_details2 = " unknown_ca";
495 str_details2 = " access_denied";
498 str_details2 = " decode_error";
501 str_details2 = " decrypt_error";
504 str_details2 = " export_restriction";
507 str_details2 = " protocol_version";
510 str_details2 = " insufficient_security";
513 str_details2 = " internal_error";
516 str_details2 = " user_canceled";
519 str_details2 = " no_renegotiation";
525 if (content_type == 22) /* Handshake */
527 str_details1 = "???";
531 switch (((const unsigned char*)buf)[0])
534 str_details1 = ", HelloRequest";
537 str_details1 = ", ClientHello";
540 str_details1 = ", ServerHello";
543 str_details1 = ", Certificate";
546 str_details1 = ", ServerKeyExchange";
549 str_details1 = ", CertificateRequest";
552 str_details1 = ", ServerHelloDone";
555 str_details1 = ", CertificateVerify";
558 str_details1 = ", HelloVerifyRequest";
561 str_details1 = ", ClientKeyExchange";
564 str_details1 = ", Finished";
571 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version, str_content_type, (unsigned long)len, str_details1, str_details2);
577 BIO_printf(bio, " ");
583 for (i = 0; i < num; i++)
585 if (i % 16 == 0 && i > 0)
586 BIO_printf(bio, "\n ");
587 BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
590 BIO_printf(bio, " ...");
591 BIO_printf(bio, "\n");
593 (void)BIO_flush(bio);
596 void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
597 unsigned char *data, int len,
605 case TLSEXT_TYPE_server_name:
606 extname = "server name";
609 case TLSEXT_TYPE_max_fragment_length:
610 extname = "max fragment length";
613 case TLSEXT_TYPE_client_certificate_url:
614 extname = "client certificate URL";
617 case TLSEXT_TYPE_trusted_ca_keys:
618 extname = "trusted CA keys";
621 case TLSEXT_TYPE_truncated_hmac:
622 extname = "truncated HMAC";
625 case TLSEXT_TYPE_status_request:
626 extname = "status request";
629 case TLSEXT_TYPE_elliptic_curves:
630 extname = "elliptic curves";
633 case TLSEXT_TYPE_ec_point_formats:
634 extname = "EC point formats";
637 case TLSEXT_TYPE_session_ticket:
638 extname = "server ticket";
648 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
649 client_server ? "server": "client",
651 BIO_dump(bio, (char *)data, len);
652 (void)BIO_flush(bio);
655 int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
657 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
658 unsigned int length, resultlength;
659 struct sockaddr_in peer;
661 /* Initialize a random secret */
662 if (!cookie_initialized)
664 if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
666 BIO_printf(bio_err,"error setting random cookie secret\n");
669 cookie_initialized = 1;
672 /* Read peer information */
673 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
675 /* Create buffer with peer's address and port */
676 length = sizeof(peer.sin_addr);
677 length += sizeof(peer.sin_port);
678 buffer = OPENSSL_malloc(length);
682 BIO_printf(bio_err,"out of memory\n");
686 memcpy(buffer, &peer.sin_addr, sizeof(peer.sin_addr));
687 memcpy(buffer + sizeof(peer.sin_addr), &peer.sin_port, sizeof(peer.sin_port));
689 /* Calculate HMAC of buffer using the secret */
690 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
691 buffer, length, result, &resultlength);
692 OPENSSL_free(buffer);
694 memcpy(cookie, result, resultlength);
695 *cookie_len = resultlength;
700 int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
702 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
703 unsigned int length, resultlength;
704 struct sockaddr_in peer;
706 /* If secret isn't initialized yet, the cookie can't be valid */
707 if (!cookie_initialized)
710 /* Read peer information */
711 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
713 /* Create buffer with peer's address and port */
714 length = sizeof(peer.sin_addr);
715 length += sizeof(peer.sin_port);
716 buffer = (unsigned char*) OPENSSL_malloc(length);
720 BIO_printf(bio_err,"out of memory\n");
724 memcpy(buffer, &peer.sin_addr, sizeof(peer.sin_addr));
725 memcpy(buffer + sizeof(peer.sin_addr), &peer.sin_port, sizeof(peer.sin_port));
727 /* Calculate HMAC of buffer using the secret */
728 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
729 buffer, length, result, &resultlength);
730 OPENSSL_free(buffer);
732 if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)