1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
57 /* ====================================================================
58 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
60 * Redistribution and use in source and binary forms, with or without
61 * modification, are permitted provided that the following conditions
64 * 1. Redistributions of source code must retain the above copyright
65 * notice, this list of conditions and the following disclaimer.
67 * 2. Redistributions in binary form must reproduce the above copyright
68 * notice, this list of conditions and the following disclaimer in
69 * the documentation and/or other materials provided with the
72 * 3. All advertising materials mentioning features or use of this
73 * software must display the following acknowledgment:
74 * "This product includes software developed by the OpenSSL Project
75 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
78 * endorse or promote products derived from this software without
79 * prior written permission. For written permission, please contact
80 * openssl-core@openssl.org.
82 * 5. Products derived from this software may not be called "OpenSSL"
83 * nor may "OpenSSL" appear in their names without prior written
84 * permission of the OpenSSL Project.
86 * 6. Redistributions of any form whatsoever must retain the following
88 * "This product includes software developed by the OpenSSL Project
89 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
92 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
93 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
94 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
95 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
96 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
97 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
98 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
99 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
100 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
101 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
102 * OF THE POSSIBILITY OF SUCH DAMAGE.
103 * ====================================================================
105 * This product includes cryptographic software written by Eric Young
106 * (eay@cryptsoft.com). This product includes software written by Tim
107 * Hudson (tjh@cryptsoft.com).
111 /* callback functions used by s_client, s_server, and s_time */
114 #include <string.h> /* for memcpy() and strcmp() */
118 #include <openssl/err.h>
119 #include <openssl/rand.h>
120 #include <openssl/x509.h>
121 #include <openssl/ssl.h>
122 #include <openssl/bn.h>
123 #ifndef OPENSSL_NO_DH
124 # include <openssl/dh.h>
128 #define COOKIE_SECRET_LENGTH 16
130 int verify_depth = 0;
131 int verify_quiet = 0;
132 int verify_error = X509_V_OK;
133 int verify_return_error = 0;
134 unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
135 int cookie_initialized = 0;
137 static const char *lookup(int val, const STRINT_PAIR* list, const char* def)
139 for ( ; list->name; ++list)
140 if (list->retval == val)
145 int verify_callback(int ok, X509_STORE_CTX *ctx)
150 err_cert = X509_STORE_CTX_get_current_cert(ctx);
151 err = X509_STORE_CTX_get_error(ctx);
152 depth = X509_STORE_CTX_get_error_depth(ctx);
154 if (!verify_quiet || !ok) {
155 BIO_printf(bio_err, "depth=%d ", depth);
157 X509_NAME_print_ex(bio_err,
158 X509_get_subject_name(err_cert),
160 BIO_puts(bio_err, "\n");
162 BIO_puts(bio_err, "<no cert>\n");
165 BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
166 X509_verify_cert_error_string(err));
167 if (verify_depth >= depth) {
168 if (!verify_return_error)
170 verify_error = X509_V_OK;
173 verify_error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
177 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
178 BIO_puts(bio_err, "issuer= ");
179 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
181 BIO_puts(bio_err, "\n");
183 case X509_V_ERR_CERT_NOT_YET_VALID:
184 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
185 BIO_printf(bio_err, "notBefore=");
186 ASN1_TIME_print(bio_err, X509_get_notBefore(err_cert));
187 BIO_printf(bio_err, "\n");
189 case X509_V_ERR_CERT_HAS_EXPIRED:
190 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
191 BIO_printf(bio_err, "notAfter=");
192 ASN1_TIME_print(bio_err, X509_get_notAfter(err_cert));
193 BIO_printf(bio_err, "\n");
195 case X509_V_ERR_NO_EXPLICIT_POLICY:
200 if (err == X509_V_OK && ok == 2 && !verify_quiet)
202 if (ok && !verify_quiet)
203 BIO_printf(bio_err, "verify return:%d\n", ok);
207 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
209 if (cert_file != NULL) {
210 if (SSL_CTX_use_certificate_file(ctx, cert_file,
211 SSL_FILETYPE_PEM) <= 0) {
212 BIO_printf(bio_err, "unable to get certificate from '%s'\n",
214 ERR_print_errors(bio_err);
217 if (key_file == NULL)
218 key_file = cert_file;
219 if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
220 BIO_printf(bio_err, "unable to get private key from '%s'\n",
222 ERR_print_errors(bio_err);
227 * If we are using DSA, we can copy the parameters from the private
232 * Now we know that a key and cert have been set against the SSL
235 if (!SSL_CTX_check_private_key(ctx)) {
237 "Private key does not match the certificate public key\n");
244 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
245 STACK_OF(X509) *chain, int build_chain)
247 int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
250 if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
251 BIO_printf(bio_err, "error setting certificate\n");
252 ERR_print_errors(bio_err);
256 if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
257 BIO_printf(bio_err, "error setting private key\n");
258 ERR_print_errors(bio_err);
263 * Now we know that a key and cert have been set against the SSL context
265 if (!SSL_CTX_check_private_key(ctx)) {
267 "Private key does not match the certificate public key\n");
270 if (chain && !SSL_CTX_set1_chain(ctx, chain)) {
271 BIO_printf(bio_err, "error setting certificate chain\n");
272 ERR_print_errors(bio_err);
275 if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) {
276 BIO_printf(bio_err, "error building certificate chain\n");
277 ERR_print_errors(bio_err);
283 static STRINT_PAIR cert_type_list[] = {
284 {"RSA sign", TLS_CT_RSA_SIGN},
285 {"DSA sign", TLS_CT_DSS_SIGN},
286 {"RSA fixed DH", TLS_CT_RSA_FIXED_DH},
287 {"DSS fixed DH", TLS_CT_DSS_FIXED_DH},
288 {"ECDSA sign", TLS_CT_ECDSA_SIGN},
289 {"RSA fixed ECDH", TLS_CT_RSA_FIXED_ECDH},
290 {"ECDSA fixed ECDH", TLS_CT_ECDSA_FIXED_ECDH},
291 {"GOST94 Sign", TLS_CT_GOST94_SIGN},
292 {"GOST01 Sign", TLS_CT_GOST01_SIGN},
296 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
298 const unsigned char *p;
300 int cert_type_num = SSL_get0_certificate_types(s, &p);
303 BIO_puts(bio, "Client Certificate Types: ");
304 for (i = 0; i < cert_type_num; i++) {
305 unsigned char cert_type = p[i];
306 const char *cname = lookup((int)cert_type, cert_type_list, NULL);
311 BIO_puts(bio, cname);
313 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
318 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
321 client = SSL_is_server(s) ? 0 : 1;
323 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
325 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
330 BIO_puts(out, "Shared ");
333 BIO_puts(out, "Requested ");
334 BIO_puts(out, "Signature Algorithms: ");
335 for (i = 0; i < nsig; i++) {
336 int hash_nid, sign_nid;
337 unsigned char rhash, rsign;
338 const char *sstr = NULL;
340 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
343 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
346 if (sign_nid == EVP_PKEY_RSA)
348 else if (sign_nid == EVP_PKEY_DSA)
350 else if (sign_nid == EVP_PKEY_EC)
353 BIO_printf(out, "%s+", sstr);
355 BIO_printf(out, "0x%02X+", (int)rsign);
356 if (hash_nid != NID_undef)
357 BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
359 BIO_printf(out, "0x%02X", (int)rhash);
365 int ssl_print_sigalgs(BIO *out, SSL *s)
368 if (!SSL_is_server(s))
369 ssl_print_client_cert_types(out, s);
370 do_print_sigalgs(out, s, 0);
371 do_print_sigalgs(out, s, 1);
372 if (SSL_get_peer_signature_nid(s, &mdnid))
373 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
377 #ifndef OPENSSL_NO_EC
378 int ssl_print_point_formats(BIO *out, SSL *s)
381 const char *pformats;
382 nformats = SSL_get0_ec_point_formats(s, &pformats);
385 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
386 for (i = 0; i < nformats; i++, pformats++) {
390 case TLSEXT_ECPOINTFORMAT_uncompressed:
391 BIO_puts(out, "uncompressed");
394 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
395 BIO_puts(out, "ansiX962_compressed_prime");
398 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
399 BIO_puts(out, "ansiX962_compressed_char2");
403 BIO_printf(out, "unknown(%d)", (int)*pformats);
409 BIO_puts(out, "NONE");
414 int ssl_print_curves(BIO *out, SSL *s, int noshared)
416 int i, ncurves, *curves, nid;
419 ncurves = SSL_get1_curves(s, NULL);
422 curves = app_malloc(ncurves * sizeof(int), "curves to print");
423 SSL_get1_curves(s, curves);
425 BIO_puts(out, "Supported Elliptic Curves: ");
426 for (i = 0; i < ncurves; i++) {
430 /* If unrecognised print out hex version */
431 if (nid & TLSEXT_nid_unknown)
432 BIO_printf(out, "0x%04X", nid & 0xFFFF);
434 /* Use NIST name for curve if it exists */
435 cname = EC_curve_nid2nist(nid);
437 cname = OBJ_nid2sn(nid);
438 BIO_printf(out, "%s", cname);
442 BIO_puts(out, "NONE");
443 OPENSSL_free(curves);
448 BIO_puts(out, "\nShared Elliptic curves: ");
449 ncurves = SSL_get_shared_curve(s, -1);
450 for (i = 0; i < ncurves; i++) {
453 nid = SSL_get_shared_curve(s, i);
454 cname = EC_curve_nid2nist(nid);
456 cname = OBJ_nid2sn(nid);
457 BIO_printf(out, "%s", cname);
460 BIO_puts(out, "NONE");
465 int ssl_print_tmp_key(BIO *out, SSL *s)
468 if (!SSL_get_server_tmp_key(s, &key))
470 BIO_puts(out, "Server Temp Key: ");
471 switch (EVP_PKEY_id(key)) {
473 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
477 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
479 #ifndef OPENSSL_NO_EC
482 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
485 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
487 cname = EC_curve_nid2nist(nid);
489 cname = OBJ_nid2sn(nid);
490 BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
498 long bio_dump_callback(BIO *bio, int cmd, const char *argp,
499 int argi, long argl, long ret)
503 out = (BIO *)BIO_get_callback_arg(bio);
507 if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
508 BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
509 (void *)bio, argp, (unsigned long)argi, ret, ret);
510 BIO_dump(out, argp, (int)ret);
512 } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
513 BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
514 (void *)bio, argp, (unsigned long)argi, ret, ret);
515 BIO_dump(out, argp, (int)ret);
520 void apps_ssl_info_callback(const SSL *s, int where, int ret)
525 w = where & ~SSL_ST_MASK;
527 if (w & SSL_ST_CONNECT)
529 else if (w & SSL_ST_ACCEPT)
534 if (where & SSL_CB_LOOP) {
535 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
536 } else if (where & SSL_CB_ALERT) {
537 str = (where & SSL_CB_READ) ? "read" : "write";
538 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
540 SSL_alert_type_string_long(ret),
541 SSL_alert_desc_string_long(ret));
542 } else if (where & SSL_CB_EXIT) {
544 BIO_printf(bio_err, "%s:failed in %s\n",
545 str, SSL_state_string_long(s));
547 BIO_printf(bio_err, "%s:error in %s\n",
548 str, SSL_state_string_long(s));
553 static STRINT_PAIR ssl_versions[] = {
554 {"SSL 3.0", SSL3_VERSION},
555 {"TLS 1.0", TLS1_VERSION},
556 {"TLS 1.1", TLS1_1_VERSION},
557 {"TLS 1.2", TLS1_2_VERSION},
558 {"DTLS 1.0", DTLS1_VERSION},
559 {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
562 static STRINT_PAIR alert_types[] = {
563 {" close_notify", 0},
564 {" unexpected_message", 10},
565 {" bad_record_mac", 20},
566 {" decryption_failed", 21},
567 {" record_overflow", 22},
568 {" decompression_failure", 30},
569 {" handshake_failure", 40},
570 {" bad_certificate", 42},
571 {" unsupported_certificate", 43},
572 {" certificate_revoked", 44},
573 {" certificate_expired", 45},
574 {" certificate_unknown", 46},
575 {" illegal_parameter", 47},
577 {" access_denied", 49},
578 {" decode_error", 50},
579 {" decrypt_error", 51},
580 {" export_restriction", 60},
581 {" protocol_version", 70},
582 {" insufficient_security", 71},
583 {" internal_error", 80},
584 {" user_canceled", 90},
585 {" no_renegotiation", 100},
586 {" unsupported_extension", 110},
587 {" certificate_unobtainable", 111},
588 {" unrecognized_name", 112},
589 {" bad_certificate_status_response", 113},
590 {" bad_certificate_hash_value", 114},
591 {" unknown_psk_identity", 115},
595 static STRINT_PAIR handshakes[] = {
596 {", HelloRequest", 0},
597 {", ClientHello", 1},
598 {", ServerHello", 2},
599 {", HelloVerifyRequest", 3},
600 {", Certificate", 11},
601 {", ServerKeyExchange", 12},
602 {", CertificateRequest", 13},
603 {", ServerHelloDone", 14},
604 {", CertificateVerify", 15},
605 {", ClientKeyExchange", 16},
610 void msg_cb(int write_p, int version, int content_type, const void *buf,
611 size_t len, SSL *ssl, void *arg)
614 const char *str_write_p = write_p ? ">>>" : "<<<";
615 const char *str_version = lookup(version, ssl_versions, "???");
616 const char *str_content_type = "", *str_details1 = "", *str_details2 = "";
617 const unsigned char* bp = buf;
619 if (version == SSL3_VERSION ||
620 version == TLS1_VERSION ||
621 version == TLS1_1_VERSION ||
622 version == TLS1_2_VERSION ||
623 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
624 switch (content_type) {
626 str_content_type = "ChangeCipherSpec";
629 str_content_type = "Alert";
630 str_details1 = ", ???";
634 str_details1 = ", warning";
637 str_details1 = ", fatal";
640 str_details2 = lookup((int)bp[1], alert_types, " ???");
644 str_content_type = "Handshake";
645 str_details1 = "???";
647 str_details1 = lookup((int)bp[0], handshakes, "???");
649 #ifndef OPENSSL_NO_HEARTBEATS
651 str_details1 = ", Heartbeat";
656 str_details1 = ", HeartbeatRequest";
659 str_details1 = ", HeartbeatResponse";
668 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
669 str_content_type, (unsigned long)len, str_details1,
675 BIO_printf(bio, " ");
677 for (i = 0; i < num; i++) {
678 if (i % 16 == 0 && i > 0)
679 BIO_printf(bio, "\n ");
680 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
683 BIO_printf(bio, " ...");
684 BIO_printf(bio, "\n");
686 (void)BIO_flush(bio);
689 static STRINT_PAIR tlsext_types[] = {
690 {"server name", TLSEXT_TYPE_server_name},
691 {"max fragment length", TLSEXT_TYPE_max_fragment_length},
692 {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
693 {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
694 {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
695 {"status request", TLSEXT_TYPE_status_request},
696 {"user mapping", TLSEXT_TYPE_user_mapping},
697 {"client authz", TLSEXT_TYPE_client_authz},
698 {"server authz", TLSEXT_TYPE_server_authz},
699 {"cert type", TLSEXT_TYPE_cert_type},
700 {"elliptic curves", TLSEXT_TYPE_elliptic_curves},
701 {"EC point formats", TLSEXT_TYPE_ec_point_formats},
702 {"SRP", TLSEXT_TYPE_srp},
703 {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
704 {"use SRTP", TLSEXT_TYPE_use_srtp},
705 {"heartbeat", TLSEXT_TYPE_heartbeat},
706 {"session ticket", TLSEXT_TYPE_session_ticket},
707 {"renegotiation info", TLSEXT_TYPE_renegotiate},
708 {"TLS padding", TLSEXT_TYPE_padding},
709 #ifdef TLSEXT_TYPE_next_proto_neg
710 {"next protocol", TLSEXT_TYPE_next_proto_neg},
712 #ifdef TLSEXT_TYPE_encrypt_then_mac
713 {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
718 void tlsext_cb(SSL *s, int client_server, int type,
719 unsigned char *data, int len, void *arg)
722 const char *extname = lookup(type, tlsext_types, "unknown");
724 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
725 client_server ? "server" : "client", extname, type, len);
726 BIO_dump(bio, (char *)data, len);
727 (void)BIO_flush(bio);
730 int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
731 unsigned int *cookie_len)
733 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
734 unsigned int length, resultlength;
737 struct sockaddr_in s4;
739 struct sockaddr_in6 s6;
743 /* Initialize a random secret */
744 if (!cookie_initialized) {
745 if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
746 BIO_printf(bio_err, "error setting random cookie secret\n");
749 cookie_initialized = 1;
752 /* Read peer information */
753 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
755 /* Create buffer with peer's address and port */
757 switch (peer.sa.sa_family) {
759 length += sizeof(struct in_addr);
760 length += sizeof(peer.s4.sin_port);
764 length += sizeof(struct in6_addr);
765 length += sizeof(peer.s6.sin6_port);
772 buffer = app_malloc(length, "cookie generate buffer");
774 switch (peer.sa.sa_family) {
776 memcpy(buffer, &peer.s4.sin_port, sizeof(peer.s4.sin_port));
777 memcpy(buffer + sizeof(peer.s4.sin_port),
778 &peer.s4.sin_addr, sizeof(struct in_addr));
782 memcpy(buffer, &peer.s6.sin6_port, sizeof(peer.s6.sin6_port));
783 memcpy(buffer + sizeof(peer.s6.sin6_port),
784 &peer.s6.sin6_addr, sizeof(struct in6_addr));
792 /* Calculate HMAC of buffer using the secret */
793 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
794 buffer, length, result, &resultlength);
795 OPENSSL_free(buffer);
797 memcpy(cookie, result, resultlength);
798 *cookie_len = resultlength;
803 int verify_cookie_callback(SSL *ssl, unsigned char *cookie,
804 unsigned int cookie_len)
806 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
807 unsigned int length, resultlength;
810 struct sockaddr_in s4;
812 struct sockaddr_in6 s6;
816 /* If secret isn't initialized yet, the cookie can't be valid */
817 if (!cookie_initialized)
820 /* Read peer information */
821 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
823 /* Create buffer with peer's address and port */
825 switch (peer.sa.sa_family) {
827 length += sizeof(struct in_addr);
828 length += sizeof(peer.s4.sin_port);
832 length += sizeof(struct in6_addr);
833 length += sizeof(peer.s6.sin6_port);
840 buffer = app_malloc(length, "cookie verify buffer");
842 switch (peer.sa.sa_family) {
844 memcpy(buffer, &peer.s4.sin_port, sizeof(peer.s4.sin_port));
845 memcpy(buffer + sizeof(peer.s4.sin_port),
846 &peer.s4.sin_addr, sizeof(struct in_addr));
850 memcpy(buffer, &peer.s6.sin6_port, sizeof(peer.s6.sin6_port));
851 memcpy(buffer + sizeof(peer.s6.sin6_port),
852 &peer.s6.sin6_addr, sizeof(struct in6_addr));
860 /* Calculate HMAC of buffer using the secret */
861 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
862 buffer, length, result, &resultlength);
863 OPENSSL_free(buffer);
865 if (cookie_len == resultlength
866 && memcmp(result, cookie, resultlength) == 0)
873 * Example of extended certificate handling. Where the standard support of
874 * one certificate per algorithm is not sufficient an application can decide
875 * which certificate(s) to use at runtime based on whatever criteria it deems
879 /* Linked list of certificates, keys and chains */
880 struct ssl_excert_st {
882 const char *certfile;
885 const char *chainfile;
888 STACK_OF(X509) *chain;
890 struct ssl_excert_st *next, *prev;
893 static STRINT_PAIR chain_flags[] = {
894 {"Overall Validity", CERT_PKEY_VALID},
895 {"Sign with EE key", CERT_PKEY_SIGN},
896 {"EE signature", CERT_PKEY_EE_SIGNATURE},
897 {"CA signature", CERT_PKEY_CA_SIGNATURE},
898 {"EE key parameters", CERT_PKEY_EE_PARAM},
899 {"CA key parameters", CERT_PKEY_CA_PARAM},
900 {"Explicity sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
901 {"Issuer Name", CERT_PKEY_ISSUER_NAME},
902 {"Certificate Type", CERT_PKEY_CERT_TYPE},
906 static void print_chain_flags(SSL *s, int flags)
910 for (pp = chain_flags; pp->name; ++pp)
911 BIO_printf(bio_err, "\t%s: %s\n",
913 (flags & pp->retval) ? "OK" : "NOT OK");
914 BIO_printf(bio_err, "\tSuite B: ");
915 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
916 BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
918 BIO_printf(bio_err, "not tested\n");
922 * Very basic selection callback: just use any certificate chain reported as
923 * valid. More sophisticated could prioritise according to local policy.
925 static int set_cert_cb(SSL *ssl, void *arg)
928 SSL_EXCERT *exc = arg;
929 #ifdef CERT_CB_TEST_RETRY
930 static int retry_cnt;
934 "Certificate callback retry test: count %d\n",
939 SSL_certs_clear(ssl);
945 * Go to end of list and traverse backwards since we prepend newer
946 * entries this retains the original order.
955 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
956 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
957 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
959 BIO_puts(bio_err, "\n");
960 print_chain_flags(ssl, rv);
961 if (rv & CERT_PKEY_VALID) {
962 if (!SSL_use_certificate(ssl, exc->cert)
963 || !SSL_use_PrivateKey(ssl, exc->key)) {
967 * NB: we wouldn't normally do this as it is not efficient
968 * building chains on each connection better to cache the chain
971 if (exc->build_chain) {
972 if (!SSL_build_cert_chain(ssl, 0))
974 } else if (exc->chain)
975 SSL_set1_chain(ssl, exc->chain);
982 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
984 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
987 static int ssl_excert_prepend(SSL_EXCERT **pexc)
989 SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
991 exc->certfile = NULL;
993 exc->chainfile = NULL;
998 exc->build_chain = 0;
1004 exc->certform = exc->next->certform;
1005 exc->keyform = exc->next->keyform;
1006 exc->next->prev = exc;
1008 exc->certform = FORMAT_PEM;
1009 exc->keyform = FORMAT_PEM;
1015 void ssl_excert_free(SSL_EXCERT *exc)
1022 X509_free(exc->cert);
1023 EVP_PKEY_free(exc->key);
1024 sk_X509_pop_free(exc->chain, X509_free);
1031 int load_excert(SSL_EXCERT **pexc)
1033 SSL_EXCERT *exc = *pexc;
1036 /* If nothing in list, free and set to NULL */
1037 if (!exc->certfile && !exc->next) {
1038 ssl_excert_free(exc);
1042 for (; exc; exc = exc->next) {
1043 if (!exc->certfile) {
1044 BIO_printf(bio_err, "Missing filename\n");
1047 exc->cert = load_cert(exc->certfile, exc->certform,
1048 NULL, NULL, "Server Certificate");
1052 exc->key = load_key(exc->keyfile, exc->keyform,
1053 0, NULL, NULL, "Server Key");
1055 exc->key = load_key(exc->certfile, exc->certform,
1056 0, NULL, NULL, "Server Key");
1060 if (exc->chainfile) {
1061 exc->chain = load_certs(exc->chainfile, FORMAT_PEM,
1062 NULL, NULL, "Server Chain");
1070 enum range { OPT_X_ENUM };
1072 int args_excert(int opt, SSL_EXCERT **pexc)
1074 SSL_EXCERT *exc = *pexc;
1076 assert(opt > OPT_X__FIRST);
1077 assert(opt < OPT_X__LAST);
1080 if (!ssl_excert_prepend(&exc)) {
1081 BIO_printf(bio_err, " %s: Error initialising xcert\n",
1088 switch ((enum range)opt) {
1093 if (exc->certfile && !ssl_excert_prepend(&exc)) {
1094 BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
1097 exc->certfile = opt_arg();
1101 BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
1104 exc->keyfile = opt_arg();
1107 if (exc->chainfile) {
1108 BIO_printf(bio_err, "%s: Chain already specified\n",
1112 exc->chainfile = opt_arg();
1114 case OPT_X_CHAIN_BUILD:
1115 exc->build_chain = 1;
1117 case OPT_X_CERTFORM:
1118 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->certform))
1122 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->keyform))
1129 ERR_print_errors(bio_err);
1130 ssl_excert_free(exc);
1135 static void print_raw_cipherlist(SSL *s)
1137 const unsigned char *rlist;
1138 static const unsigned char scsv_id[] = { 0, 0, 0xFF };
1139 size_t i, rlistlen, num;
1140 if (!SSL_is_server(s))
1142 num = SSL_get0_raw_cipherlist(s, NULL);
1143 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
1144 BIO_puts(bio_err, "Client cipher list: ");
1145 for (i = 0; i < rlistlen; i += num, rlist += num) {
1146 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
1148 BIO_puts(bio_err, ":");
1150 BIO_puts(bio_err, SSL_CIPHER_get_name(c));
1151 else if (!memcmp(rlist, scsv_id - num + 3, num))
1152 BIO_puts(bio_err, "SCSV");
1155 BIO_puts(bio_err, "0x");
1156 for (j = 0; j < num; j++)
1157 BIO_printf(bio_err, "%02X", rlist[j]);
1160 BIO_puts(bio_err, "\n");
1163 void print_ssl_summary(SSL *s)
1165 const SSL_CIPHER *c;
1167 /* const char *pnam = SSL_is_server(s) ? "client" : "server"; */
1169 BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
1170 print_raw_cipherlist(s);
1171 c = SSL_get_current_cipher(s);
1172 BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1173 do_print_sigalgs(bio_err, s, 0);
1174 peer = SSL_get_peer_certificate(s);
1177 BIO_puts(bio_err, "Peer certificate: ");
1178 X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1179 0, XN_FLAG_ONELINE);
1180 BIO_puts(bio_err, "\n");
1181 if (SSL_get_peer_signature_nid(s, &nid))
1182 BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1184 BIO_puts(bio_err, "No peer certificate\n");
1186 #ifndef OPENSSL_NO_EC
1187 ssl_print_point_formats(bio_err, s);
1188 if (SSL_is_server(s))
1189 ssl_print_curves(bio_err, s, 1);
1191 ssl_print_tmp_key(bio_err, s);
1193 if (!SSL_is_server(s))
1194 ssl_print_tmp_key(bio_err, s);
1198 int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
1199 SSL_CTX *ctx, int no_ecdhe, int no_jpake)
1203 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1204 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1205 const char *flag = sk_OPENSSL_STRING_value(str, i);
1206 const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
1207 /* If no_ecdhe or named curve already specified don't need a default. */
1208 if (!no_ecdhe && strcmp(flag, "-named_curve") == 0)
1210 #ifndef OPENSSL_NO_JPAKE
1211 if (!no_jpake && (strcmp(flag, "-cipher") == 0)) {
1212 BIO_puts(bio_err, "JPAKE sets cipher to PSK\n");
1216 if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
1218 BIO_printf(bio_err, "Error with command: \"%s %s\"\n",
1221 BIO_printf(bio_err, "Error with command: \"%s\"\n", flag);
1222 ERR_print_errors(bio_err);
1227 * This is a special case to keep existing s_server functionality: if we
1228 * don't have any curve specified *and* we haven't disabled ECDHE then
1232 if (SSL_CONF_cmd(cctx, "-named_curve", "P-256") <= 0) {
1233 BIO_puts(bio_err, "Error setting EC curve\n");
1234 ERR_print_errors(bio_err);
1238 #ifndef OPENSSL_NO_JPAKE
1240 if (SSL_CONF_cmd(cctx, "-cipher", "PSK") <= 0) {
1241 BIO_puts(bio_err, "Error setting cipher to PSK\n");
1242 ERR_print_errors(bio_err);
1247 if (!SSL_CONF_CTX_finish(cctx)) {
1248 BIO_puts(bio_err, "Error finishing context\n");
1249 ERR_print_errors(bio_err);
1255 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1259 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1260 crl = sk_X509_CRL_value(crls, i);
1261 X509_STORE_add_crl(st, crl);
1266 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1269 st = SSL_CTX_get_cert_store(ctx);
1270 add_crls_store(st, crls);
1272 store_setup_crl_download(st);
1276 int ssl_load_stores(SSL_CTX *ctx,
1277 const char *vfyCApath, const char *vfyCAfile,
1278 const char *chCApath, const char *chCAfile,
1279 STACK_OF(X509_CRL) *crls, int crl_download)
1281 X509_STORE *vfy = NULL, *ch = NULL;
1283 if (vfyCApath || vfyCAfile) {
1284 vfy = X509_STORE_new();
1285 if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
1287 add_crls_store(vfy, crls);
1288 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1290 store_setup_crl_download(vfy);
1292 if (chCApath || chCAfile) {
1293 ch = X509_STORE_new();
1294 if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
1296 SSL_CTX_set1_chain_cert_store(ctx, ch);
1300 X509_STORE_free(vfy);
1301 X509_STORE_free(ch);
1305 /* Verbose print out of security callback */
1310 int (*old_cb) (SSL *s, SSL_CTX *ctx, int op, int bits, int nid,
1311 void *other, void *ex);
1312 } security_debug_ex;
1314 static STRINT_PAIR callback_types[] = {
1315 {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
1316 {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
1317 {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
1318 #ifndef OPENSSL_NO_DH
1319 {"Temp DH key bits", SSL_SECOP_TMP_DH},
1321 {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
1322 {"Shared Curve", SSL_SECOP_CURVE_SHARED},
1323 {"Check Curve", SSL_SECOP_CURVE_CHECK},
1324 {"Supported Signature Algorithm digest", SSL_SECOP_SIGALG_SUPPORTED},
1325 {"Shared Signature Algorithm digest", SSL_SECOP_SIGALG_SHARED},
1326 {"Check Signature Algorithm digest", SSL_SECOP_SIGALG_CHECK},
1327 {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
1328 {"Certificate chain EE key", SSL_SECOP_EE_KEY},
1329 {"Certificate chain CA key", SSL_SECOP_CA_KEY},
1330 {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
1331 {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
1332 {"Certificate chain CA digest", SSL_SECOP_CA_MD},
1333 {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
1334 {"SSL compression", SSL_SECOP_COMPRESSION},
1335 {"Session ticket", SSL_SECOP_TICKET},
1339 static int security_callback_debug(SSL *s, SSL_CTX *ctx,
1340 int op, int bits, int nid,
1341 void *other, void *ex)
1343 security_debug_ex *sdb = ex;
1344 int rv, show_bits = 1, cert_md = 0;
1346 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1347 if (rv == 1 && sdb->verbose < 2)
1349 BIO_puts(sdb->out, "Security callback: ");
1351 nm = lookup(op, callback_types, NULL);
1353 case SSL_SECOP_TICKET:
1354 case SSL_SECOP_COMPRESSION:
1358 case SSL_SECOP_VERSION:
1359 BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1363 case SSL_SECOP_CA_MD:
1364 case SSL_SECOP_PEER_CA_MD:
1369 BIO_printf(sdb->out, "%s=", nm);
1371 switch (op & SSL_SECOP_OTHER_TYPE) {
1373 case SSL_SECOP_OTHER_CIPHER:
1374 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1377 #ifndef OPENSSL_NO_EC
1378 case SSL_SECOP_OTHER_CURVE:
1381 cname = EC_curve_nid2nist(nid);
1383 cname = OBJ_nid2sn(nid);
1384 BIO_puts(sdb->out, cname);
1389 case SSL_SECOP_OTHER_DH:
1392 BIO_printf(sdb->out, "%d", BN_num_bits(dh->p));
1395 case SSL_SECOP_OTHER_CERT:
1398 int sig_nid = X509_get_signature_nid(other);
1399 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1401 EVP_PKEY *pkey = X509_get_pubkey(other);
1402 const char *algname = "";
1403 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1404 &algname, EVP_PKEY_get0_asn1(pkey));
1405 BIO_printf(sdb->out, "%s, bits=%d",
1406 algname, EVP_PKEY_bits(pkey));
1407 EVP_PKEY_free(pkey);
1411 case SSL_SECOP_OTHER_SIGALG:
1413 const unsigned char *salg = other;
1414 const char *sname = NULL;
1416 case TLSEXT_signature_anonymous:
1417 sname = "anonymous";
1419 case TLSEXT_signature_rsa:
1422 case TLSEXT_signature_dsa:
1425 case TLSEXT_signature_ecdsa:
1430 BIO_puts(sdb->out, OBJ_nid2sn(nid));
1432 BIO_printf(sdb->out, ", algorithm=%s", sname);
1434 BIO_printf(sdb->out, ", algid=%d", salg[1]);
1441 BIO_printf(sdb->out, ", security bits=%d", bits);
1442 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1446 void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1448 static security_debug_ex sdb;
1451 sdb.verbose = verbose;
1452 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1453 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1454 SSL_CTX_set0_security_ex_data(ctx, &sdb);