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 */
115 #include <string.h> /* for memcpy() and strcmp() */
119 #include <openssl/err.h>
120 #include <openssl/rand.h>
121 #include <openssl/x509.h>
122 #include <openssl/ssl.h>
123 #include <openssl/bn.h>
124 #ifndef OPENSSL_NO_DH
125 # include <openssl/dh.h>
129 #define COOKIE_SECRET_LENGTH 16
131 int verify_depth = 0;
132 int verify_quiet = 0;
133 int verify_error = X509_V_OK;
134 int verify_return_error = 0;
135 unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
136 int cookie_initialized = 0;
138 static const char *lookup(int val, const STRINT_PAIR* list, const char* def)
140 for ( ; list->name; ++list)
141 if (list->retval == val)
146 int verify_callback(int ok, X509_STORE_CTX *ctx)
151 err_cert = X509_STORE_CTX_get_current_cert(ctx);
152 err = X509_STORE_CTX_get_error(ctx);
153 depth = X509_STORE_CTX_get_error_depth(ctx);
155 if (!verify_quiet || !ok) {
156 BIO_printf(bio_err, "depth=%d ", depth);
158 X509_NAME_print_ex(bio_err,
159 X509_get_subject_name(err_cert),
161 BIO_puts(bio_err, "\n");
163 BIO_puts(bio_err, "<no cert>\n");
166 BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
167 X509_verify_cert_error_string(err));
168 if (verify_depth >= depth) {
169 if (!verify_return_error)
171 verify_error = X509_V_OK;
174 verify_error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
178 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
179 BIO_puts(bio_err, "issuer= ");
180 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
182 BIO_puts(bio_err, "\n");
184 case X509_V_ERR_CERT_NOT_YET_VALID:
185 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
186 BIO_printf(bio_err, "notBefore=");
187 ASN1_TIME_print(bio_err, X509_get_notBefore(err_cert));
188 BIO_printf(bio_err, "\n");
190 case X509_V_ERR_CERT_HAS_EXPIRED:
191 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
192 BIO_printf(bio_err, "notAfter=");
193 ASN1_TIME_print(bio_err, X509_get_notAfter(err_cert));
194 BIO_printf(bio_err, "\n");
196 case X509_V_ERR_NO_EXPLICIT_POLICY:
201 if (err == X509_V_OK && ok == 2 && !verify_quiet)
203 if (ok && !verify_quiet)
204 BIO_printf(bio_err, "verify return:%d\n", ok);
208 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
210 if (cert_file != NULL) {
211 if (SSL_CTX_use_certificate_file(ctx, cert_file,
212 SSL_FILETYPE_PEM) <= 0) {
213 BIO_printf(bio_err, "unable to get certificate from '%s'\n",
215 ERR_print_errors(bio_err);
218 if (key_file == NULL)
219 key_file = cert_file;
220 if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
221 BIO_printf(bio_err, "unable to get private key from '%s'\n",
223 ERR_print_errors(bio_err);
228 * If we are using DSA, we can copy the parameters from the private
233 * Now we know that a key and cert have been set against the SSL
236 if (!SSL_CTX_check_private_key(ctx)) {
238 "Private key does not match the certificate public key\n");
245 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
246 STACK_OF(X509) *chain, int build_chain)
248 int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
251 if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
252 BIO_printf(bio_err, "error setting certificate\n");
253 ERR_print_errors(bio_err);
257 if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
258 BIO_printf(bio_err, "error setting private key\n");
259 ERR_print_errors(bio_err);
264 * Now we know that a key and cert have been set against the SSL context
266 if (!SSL_CTX_check_private_key(ctx)) {
268 "Private key does not match the certificate public key\n");
271 if (chain && !SSL_CTX_set1_chain(ctx, chain)) {
272 BIO_printf(bio_err, "error setting certificate chain\n");
273 ERR_print_errors(bio_err);
276 if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) {
277 BIO_printf(bio_err, "error building certificate chain\n");
278 ERR_print_errors(bio_err);
284 static STRINT_PAIR cert_type_list[] = {
285 {"RSA sign", TLS_CT_RSA_SIGN},
286 {"DSA sign", TLS_CT_DSS_SIGN},
287 {"RSA fixed DH", TLS_CT_RSA_FIXED_DH},
288 {"DSS fixed DH", TLS_CT_DSS_FIXED_DH},
289 {"ECDSA sign", TLS_CT_ECDSA_SIGN},
290 {"RSA fixed ECDH", TLS_CT_RSA_FIXED_ECDH},
291 {"ECDSA fixed ECDH", TLS_CT_ECDSA_FIXED_ECDH},
292 {"GOST94 Sign", TLS_CT_GOST94_SIGN},
293 {"GOST01 Sign", TLS_CT_GOST01_SIGN},
297 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
299 const unsigned char *p;
301 int cert_type_num = SSL_get0_certificate_types(s, &p);
304 BIO_puts(bio, "Client Certificate Types: ");
305 for (i = 0; i < cert_type_num; i++) {
306 unsigned char cert_type = p[i];
307 const char *cname = lookup((int)cert_type, cert_type_list, NULL);
312 BIO_puts(bio, cname);
314 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
319 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
322 client = SSL_is_server(s) ? 0 : 1;
324 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
326 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
331 BIO_puts(out, "Shared ");
334 BIO_puts(out, "Requested ");
335 BIO_puts(out, "Signature Algorithms: ");
336 for (i = 0; i < nsig; i++) {
337 int hash_nid, sign_nid;
338 unsigned char rhash, rsign;
339 const char *sstr = NULL;
341 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
344 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
347 if (sign_nid == EVP_PKEY_RSA)
349 else if (sign_nid == EVP_PKEY_DSA)
351 else if (sign_nid == EVP_PKEY_EC)
354 BIO_printf(out, "%s+", sstr);
356 BIO_printf(out, "0x%02X+", (int)rsign);
357 if (hash_nid != NID_undef)
358 BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
360 BIO_printf(out, "0x%02X", (int)rhash);
366 int ssl_print_sigalgs(BIO *out, SSL *s)
369 if (!SSL_is_server(s))
370 ssl_print_client_cert_types(out, s);
371 do_print_sigalgs(out, s, 0);
372 do_print_sigalgs(out, s, 1);
373 if (SSL_get_peer_signature_nid(s, &mdnid))
374 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
378 #ifndef OPENSSL_NO_EC
379 int ssl_print_point_formats(BIO *out, SSL *s)
382 const char *pformats;
383 nformats = SSL_get0_ec_point_formats(s, &pformats);
386 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
387 for (i = 0; i < nformats; i++, pformats++) {
391 case TLSEXT_ECPOINTFORMAT_uncompressed:
392 BIO_puts(out, "uncompressed");
395 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
396 BIO_puts(out, "ansiX962_compressed_prime");
399 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
400 BIO_puts(out, "ansiX962_compressed_char2");
404 BIO_printf(out, "unknown(%d)", (int)*pformats);
410 BIO_puts(out, "NONE");
415 int ssl_print_curves(BIO *out, SSL *s, int noshared)
417 int i, ncurves, *curves, nid;
420 ncurves = SSL_get1_curves(s, NULL);
423 curves = app_malloc(ncurves * sizeof(int), "curves to print");
424 SSL_get1_curves(s, curves);
426 BIO_puts(out, "Supported Elliptic Curves: ");
427 for (i = 0; i < ncurves; i++) {
431 /* If unrecognised print out hex version */
432 if (nid & TLSEXT_nid_unknown)
433 BIO_printf(out, "0x%04X", nid & 0xFFFF);
435 /* Use NIST name for curve if it exists */
436 cname = EC_curve_nid2nist(nid);
438 cname = OBJ_nid2sn(nid);
439 BIO_printf(out, "%s", cname);
443 BIO_puts(out, "NONE");
444 OPENSSL_free(curves);
449 BIO_puts(out, "\nShared Elliptic curves: ");
450 ncurves = SSL_get_shared_curve(s, -1);
451 for (i = 0; i < ncurves; i++) {
454 nid = SSL_get_shared_curve(s, i);
455 cname = EC_curve_nid2nist(nid);
457 cname = OBJ_nid2sn(nid);
458 BIO_printf(out, "%s", cname);
461 BIO_puts(out, "NONE");
466 int ssl_print_tmp_key(BIO *out, SSL *s)
469 if (!SSL_get_server_tmp_key(s, &key))
471 BIO_puts(out, "Server Temp Key: ");
472 switch (EVP_PKEY_id(key)) {
474 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
478 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
480 #ifndef OPENSSL_NO_EC
483 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
486 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
488 cname = EC_curve_nid2nist(nid);
490 cname = OBJ_nid2sn(nid);
491 BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
499 long bio_dump_callback(BIO *bio, int cmd, const char *argp,
500 int argi, long argl, long ret)
504 out = (BIO *)BIO_get_callback_arg(bio);
508 if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
509 BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
510 (void *)bio, argp, (unsigned long)argi, ret, ret);
511 BIO_dump(out, argp, (int)ret);
513 } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
514 BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
515 (void *)bio, argp, (unsigned long)argi, ret, ret);
516 BIO_dump(out, argp, (int)ret);
521 void apps_ssl_info_callback(const SSL *s, int where, int ret)
526 w = where & ~SSL_ST_MASK;
528 if (w & SSL_ST_CONNECT)
530 else if (w & SSL_ST_ACCEPT)
535 if (where & SSL_CB_LOOP) {
536 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
537 } else if (where & SSL_CB_ALERT) {
538 str = (where & SSL_CB_READ) ? "read" : "write";
539 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
541 SSL_alert_type_string_long(ret),
542 SSL_alert_desc_string_long(ret));
543 } else if (where & SSL_CB_EXIT) {
545 BIO_printf(bio_err, "%s:failed in %s\n",
546 str, SSL_state_string_long(s));
548 BIO_printf(bio_err, "%s:error in %s\n",
549 str, SSL_state_string_long(s));
554 static STRINT_PAIR ssl_versions[] = {
555 {"SSL 3.0", SSL3_VERSION},
556 {"TLS 1.0", TLS1_VERSION},
557 {"TLS 1.1", TLS1_1_VERSION},
558 {"TLS 1.2", TLS1_2_VERSION},
559 {"DTLS 1.0", DTLS1_VERSION},
560 {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
563 static STRINT_PAIR alert_types[] = {
564 {" close_notify", 0},
565 {" unexpected_message", 10},
566 {" bad_record_mac", 20},
567 {" decryption_failed", 21},
568 {" record_overflow", 22},
569 {" decompression_failure", 30},
570 {" handshake_failure", 40},
571 {" bad_certificate", 42},
572 {" unsupported_certificate", 43},
573 {" certificate_revoked", 44},
574 {" certificate_expired", 45},
575 {" certificate_unknown", 46},
576 {" illegal_parameter", 47},
578 {" access_denied", 49},
579 {" decode_error", 50},
580 {" decrypt_error", 51},
581 {" export_restriction", 60},
582 {" protocol_version", 70},
583 {" insufficient_security", 71},
584 {" internal_error", 80},
585 {" user_canceled", 90},
586 {" no_renegotiation", 100},
587 {" unsupported_extension", 110},
588 {" certificate_unobtainable", 111},
589 {" unrecognized_name", 112},
590 {" bad_certificate_status_response", 113},
591 {" bad_certificate_hash_value", 114},
592 {" unknown_psk_identity", 115},
596 static STRINT_PAIR handshakes[] = {
597 {", HelloRequest", 0},
598 {", ClientHello", 1},
599 {", ServerHello", 2},
600 {", HelloVerifyRequest", 3},
601 {", Certificate", 11},
602 {", ServerKeyExchange", 12},
603 {", CertificateRequest", 13},
604 {", ServerHelloDone", 14},
605 {", CertificateVerify", 15},
606 {", ClientKeyExchange", 16},
611 void msg_cb(int write_p, int version, int content_type, const void *buf,
612 size_t len, SSL *ssl, void *arg)
615 const char *str_write_p = write_p ? ">>>" : "<<<";
616 const char *str_version = lookup(version, ssl_versions, "???");
617 const char *str_content_type = "", *str_details1 = "", *str_details2 = "";
618 const unsigned char* bp = buf;
620 if (version == SSL3_VERSION ||
621 version == TLS1_VERSION ||
622 version == TLS1_1_VERSION ||
623 version == TLS1_2_VERSION ||
624 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
625 switch (content_type) {
627 str_content_type = "ChangeCipherSpec";
630 str_content_type = "Alert";
631 str_details1 = ", ???";
635 str_details1 = ", warning";
638 str_details1 = ", fatal";
641 str_details2 = lookup((int)bp[1], alert_types, " ???");
645 str_content_type = "Handshake";
646 str_details1 = "???";
648 str_details1 = lookup((int)bp[0], handshakes, "???");
650 #ifndef OPENSSL_NO_HEARTBEATS
652 str_details1 = ", Heartbeat";
657 str_details1 = ", HeartbeatRequest";
660 str_details1 = ", HeartbeatResponse";
669 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
670 str_content_type, (unsigned long)len, str_details1,
676 BIO_printf(bio, " ");
678 for (i = 0; i < num; i++) {
679 if (i % 16 == 0 && i > 0)
680 BIO_printf(bio, "\n ");
681 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
684 BIO_printf(bio, " ...");
685 BIO_printf(bio, "\n");
687 (void)BIO_flush(bio);
690 static STRINT_PAIR tlsext_types[] = {
691 {"server name", TLSEXT_TYPE_server_name},
692 {"max fragment length", TLSEXT_TYPE_max_fragment_length},
693 {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
694 {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
695 {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
696 {"status request", TLSEXT_TYPE_status_request},
697 {"user mapping", TLSEXT_TYPE_user_mapping},
698 {"client authz", TLSEXT_TYPE_client_authz},
699 {"server authz", TLSEXT_TYPE_server_authz},
700 {"cert type", TLSEXT_TYPE_cert_type},
701 {"elliptic curves", TLSEXT_TYPE_elliptic_curves},
702 {"EC point formats", TLSEXT_TYPE_ec_point_formats},
703 {"SRP", TLSEXT_TYPE_srp},
704 {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
705 {"use SRTP", TLSEXT_TYPE_use_srtp},
706 {"heartbeat", TLSEXT_TYPE_heartbeat},
707 {"session ticket", TLSEXT_TYPE_session_ticket},
708 {"renegotiation info", TLSEXT_TYPE_renegotiate},
709 {"TLS padding", TLSEXT_TYPE_padding},
710 #ifdef TLSEXT_TYPE_next_proto_neg
711 {"next protocol", TLSEXT_TYPE_next_proto_neg},
713 #ifdef TLSEXT_TYPE_encrypt_then_mac
714 {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
719 void tlsext_cb(SSL *s, int client_server, int type,
720 unsigned char *data, int len, void *arg)
723 const char *extname = lookup(type, tlsext_types, "unknown");
725 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
726 client_server ? "server" : "client", extname, type, len);
727 BIO_dump(bio, (char *)data, len);
728 (void)BIO_flush(bio);
731 int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
732 unsigned int *cookie_len)
734 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
735 unsigned int length, resultlength;
738 struct sockaddr_in s4;
740 struct sockaddr_in6 s6;
744 /* Initialize a random secret */
745 if (!cookie_initialized) {
746 if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
747 BIO_printf(bio_err, "error setting random cookie secret\n");
750 cookie_initialized = 1;
753 /* Read peer information */
754 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
756 /* Create buffer with peer's address and port */
758 switch (peer.sa.sa_family) {
760 length += sizeof(struct in_addr);
761 length += sizeof(peer.s4.sin_port);
765 length += sizeof(struct in6_addr);
766 length += sizeof(peer.s6.sin6_port);
773 buffer = app_malloc(length, "cookie generate buffer");
775 switch (peer.sa.sa_family) {
777 memcpy(buffer, &peer.s4.sin_port, sizeof(peer.s4.sin_port));
778 memcpy(buffer + sizeof(peer.s4.sin_port),
779 &peer.s4.sin_addr, sizeof(struct in_addr));
783 memcpy(buffer, &peer.s6.sin6_port, sizeof(peer.s6.sin6_port));
784 memcpy(buffer + sizeof(peer.s6.sin6_port),
785 &peer.s6.sin6_addr, sizeof(struct in6_addr));
793 /* Calculate HMAC of buffer using the secret */
794 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
795 buffer, length, result, &resultlength);
796 OPENSSL_free(buffer);
798 memcpy(cookie, result, resultlength);
799 *cookie_len = resultlength;
804 int verify_cookie_callback(SSL *ssl, unsigned char *cookie,
805 unsigned int cookie_len)
807 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
808 unsigned int length, resultlength;
811 struct sockaddr_in s4;
813 struct sockaddr_in6 s6;
817 /* If secret isn't initialized yet, the cookie can't be valid */
818 if (!cookie_initialized)
821 /* Read peer information */
822 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
824 /* Create buffer with peer's address and port */
826 switch (peer.sa.sa_family) {
828 length += sizeof(struct in_addr);
829 length += sizeof(peer.s4.sin_port);
833 length += sizeof(struct in6_addr);
834 length += sizeof(peer.s6.sin6_port);
841 buffer = app_malloc(length, "cookie verify buffer");
843 switch (peer.sa.sa_family) {
845 memcpy(buffer, &peer.s4.sin_port, sizeof(peer.s4.sin_port));
846 memcpy(buffer + sizeof(peer.s4.sin_port),
847 &peer.s4.sin_addr, sizeof(struct in_addr));
851 memcpy(buffer, &peer.s6.sin6_port, sizeof(peer.s6.sin6_port));
852 memcpy(buffer + sizeof(peer.s6.sin6_port),
853 &peer.s6.sin6_addr, sizeof(struct in6_addr));
861 /* Calculate HMAC of buffer using the secret */
862 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
863 buffer, length, result, &resultlength);
864 OPENSSL_free(buffer);
866 if (cookie_len == resultlength
867 && memcmp(result, cookie, resultlength) == 0)
874 * Example of extended certificate handling. Where the standard support of
875 * one certificate per algorithm is not sufficient an application can decide
876 * which certificate(s) to use at runtime based on whatever criteria it deems
880 /* Linked list of certificates, keys and chains */
881 struct ssl_excert_st {
883 const char *certfile;
886 const char *chainfile;
889 STACK_OF(X509) *chain;
891 struct ssl_excert_st *next, *prev;
894 static STRINT_PAIR chain_flags[] = {
895 {"Overall Validity", CERT_PKEY_VALID},
896 {"Sign with EE key", CERT_PKEY_SIGN},
897 {"EE signature", CERT_PKEY_EE_SIGNATURE},
898 {"CA signature", CERT_PKEY_CA_SIGNATURE},
899 {"EE key parameters", CERT_PKEY_EE_PARAM},
900 {"CA key parameters", CERT_PKEY_CA_PARAM},
901 {"Explicity sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
902 {"Issuer Name", CERT_PKEY_ISSUER_NAME},
903 {"Certificate Type", CERT_PKEY_CERT_TYPE},
907 static void print_chain_flags(SSL *s, int flags)
911 for (pp = chain_flags; pp->name; ++pp)
912 BIO_printf(bio_err, "\t%s: %s\n",
914 (flags & pp->retval) ? "OK" : "NOT OK");
915 BIO_printf(bio_err, "\tSuite B: ");
916 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
917 BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
919 BIO_printf(bio_err, "not tested\n");
923 * Very basic selection callback: just use any certificate chain reported as
924 * valid. More sophisticated could prioritise according to local policy.
926 static int set_cert_cb(SSL *ssl, void *arg)
929 SSL_EXCERT *exc = arg;
930 #ifdef CERT_CB_TEST_RETRY
931 static int retry_cnt;
935 "Certificate callback retry test: count %d\n",
940 SSL_certs_clear(ssl);
946 * Go to end of list and traverse backwards since we prepend newer
947 * entries this retains the original order.
956 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
957 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
958 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
960 BIO_puts(bio_err, "\n");
961 print_chain_flags(ssl, rv);
962 if (rv & CERT_PKEY_VALID) {
963 if (!SSL_use_certificate(ssl, exc->cert)
964 || !SSL_use_PrivateKey(ssl, exc->key)) {
968 * NB: we wouldn't normally do this as it is not efficient
969 * building chains on each connection better to cache the chain
972 if (exc->build_chain) {
973 if (!SSL_build_cert_chain(ssl, 0))
975 } else if (exc->chain)
976 SSL_set1_chain(ssl, exc->chain);
983 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
985 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
988 static int ssl_excert_prepend(SSL_EXCERT **pexc)
990 SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
992 exc->certfile = NULL;
994 exc->chainfile = NULL;
999 exc->build_chain = 0;
1005 exc->certform = exc->next->certform;
1006 exc->keyform = exc->next->keyform;
1007 exc->next->prev = exc;
1009 exc->certform = FORMAT_PEM;
1010 exc->keyform = FORMAT_PEM;
1016 void ssl_excert_free(SSL_EXCERT *exc)
1023 X509_free(exc->cert);
1024 EVP_PKEY_free(exc->key);
1025 sk_X509_pop_free(exc->chain, X509_free);
1032 int load_excert(SSL_EXCERT **pexc)
1034 SSL_EXCERT *exc = *pexc;
1037 /* If nothing in list, free and set to NULL */
1038 if (!exc->certfile && !exc->next) {
1039 ssl_excert_free(exc);
1043 for (; exc; exc = exc->next) {
1044 if (!exc->certfile) {
1045 BIO_printf(bio_err, "Missing filename\n");
1048 exc->cert = load_cert(exc->certfile, exc->certform,
1049 NULL, NULL, "Server Certificate");
1053 exc->key = load_key(exc->keyfile, exc->keyform,
1054 0, NULL, NULL, "Server Key");
1056 exc->key = load_key(exc->certfile, exc->certform,
1057 0, NULL, NULL, "Server Key");
1061 if (exc->chainfile) {
1062 exc->chain = load_certs(exc->chainfile, FORMAT_PEM,
1063 NULL, NULL, "Server Chain");
1071 enum range { OPT_X_ENUM };
1073 int args_excert(int opt, SSL_EXCERT **pexc)
1075 SSL_EXCERT *exc = *pexc;
1077 assert(opt > OPT_X__FIRST);
1078 assert(opt < OPT_X__LAST);
1081 if (!ssl_excert_prepend(&exc)) {
1082 BIO_printf(bio_err, " %s: Error initialising xcert\n",
1089 switch ((enum range)opt) {
1094 if (exc->certfile && !ssl_excert_prepend(&exc)) {
1095 BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
1098 exc->certfile = opt_arg();
1102 BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
1105 exc->keyfile = opt_arg();
1108 if (exc->chainfile) {
1109 BIO_printf(bio_err, "%s: Chain already specified\n",
1113 exc->chainfile = opt_arg();
1115 case OPT_X_CHAIN_BUILD:
1116 exc->build_chain = 1;
1118 case OPT_X_CERTFORM:
1119 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->certform))
1123 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->keyform))
1130 ERR_print_errors(bio_err);
1131 ssl_excert_free(exc);
1136 static void print_raw_cipherlist(SSL *s)
1138 const unsigned char *rlist;
1139 static const unsigned char scsv_id[] = { 0, 0, 0xFF };
1140 size_t i, rlistlen, num;
1141 if (!SSL_is_server(s))
1143 num = SSL_get0_raw_cipherlist(s, NULL);
1144 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
1145 BIO_puts(bio_err, "Client cipher list: ");
1146 for (i = 0; i < rlistlen; i += num, rlist += num) {
1147 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
1149 BIO_puts(bio_err, ":");
1151 BIO_puts(bio_err, SSL_CIPHER_get_name(c));
1152 else if (!memcmp(rlist, scsv_id - num + 3, num))
1153 BIO_puts(bio_err, "SCSV");
1156 BIO_puts(bio_err, "0x");
1157 for (j = 0; j < num; j++)
1158 BIO_printf(bio_err, "%02X", rlist[j]);
1161 BIO_puts(bio_err, "\n");
1164 void print_ssl_summary(SSL *s)
1166 const SSL_CIPHER *c;
1168 /* const char *pnam = SSL_is_server(s) ? "client" : "server"; */
1170 BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
1171 print_raw_cipherlist(s);
1172 c = SSL_get_current_cipher(s);
1173 BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1174 do_print_sigalgs(bio_err, s, 0);
1175 peer = SSL_get_peer_certificate(s);
1178 BIO_puts(bio_err, "Peer certificate: ");
1179 X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1180 0, XN_FLAG_ONELINE);
1181 BIO_puts(bio_err, "\n");
1182 if (SSL_get_peer_signature_nid(s, &nid))
1183 BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1185 BIO_puts(bio_err, "No peer certificate\n");
1187 #ifndef OPENSSL_NO_EC
1188 ssl_print_point_formats(bio_err, s);
1189 if (SSL_is_server(s))
1190 ssl_print_curves(bio_err, s, 1);
1192 ssl_print_tmp_key(bio_err, s);
1194 if (!SSL_is_server(s))
1195 ssl_print_tmp_key(bio_err, s);
1199 int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
1200 SSL_CTX *ctx, int no_ecdhe, int no_jpake)
1204 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1205 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1206 const char *flag = sk_OPENSSL_STRING_value(str, i);
1207 const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
1208 /* If no_ecdhe or named curve already specified don't need a default. */
1209 if (!no_ecdhe && strcmp(flag, "-named_curve") == 0)
1211 #ifndef OPENSSL_NO_JPAKE
1212 if (!no_jpake && (strcmp(flag, "-cipher") == 0)) {
1213 BIO_puts(bio_err, "JPAKE sets cipher to PSK\n");
1217 if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
1219 BIO_printf(bio_err, "Error with command: \"%s %s\"\n",
1222 BIO_printf(bio_err, "Error with command: \"%s\"\n", flag);
1223 ERR_print_errors(bio_err);
1228 * This is a special case to keep existing s_server functionality: if we
1229 * don't have any curve specified *and* we haven't disabled ECDHE then
1233 if (SSL_CONF_cmd(cctx, "-named_curve", "P-256") <= 0) {
1234 BIO_puts(bio_err, "Error setting EC curve\n");
1235 ERR_print_errors(bio_err);
1239 #ifndef OPENSSL_NO_JPAKE
1241 if (SSL_CONF_cmd(cctx, "-cipher", "PSK") <= 0) {
1242 BIO_puts(bio_err, "Error setting cipher to PSK\n");
1243 ERR_print_errors(bio_err);
1248 if (!SSL_CONF_CTX_finish(cctx)) {
1249 BIO_puts(bio_err, "Error finishing context\n");
1250 ERR_print_errors(bio_err);
1256 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1260 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1261 crl = sk_X509_CRL_value(crls, i);
1262 X509_STORE_add_crl(st, crl);
1267 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1270 st = SSL_CTX_get_cert_store(ctx);
1271 add_crls_store(st, crls);
1273 store_setup_crl_download(st);
1277 int ssl_load_stores(SSL_CTX *ctx,
1278 const char *vfyCApath, const char *vfyCAfile,
1279 const char *chCApath, const char *chCAfile,
1280 STACK_OF(X509_CRL) *crls, int crl_download)
1282 X509_STORE *vfy = NULL, *ch = NULL;
1284 if (vfyCApath || vfyCAfile) {
1285 vfy = X509_STORE_new();
1286 if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
1288 add_crls_store(vfy, crls);
1289 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1291 store_setup_crl_download(vfy);
1293 if (chCApath || chCAfile) {
1294 ch = X509_STORE_new();
1295 if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
1297 SSL_CTX_set1_chain_cert_store(ctx, ch);
1301 X509_STORE_free(vfy);
1302 X509_STORE_free(ch);
1306 /* Verbose print out of security callback */
1311 int (*old_cb) (SSL *s, SSL_CTX *ctx, int op, int bits, int nid,
1312 void *other, void *ex);
1313 } security_debug_ex;
1315 static STRINT_PAIR callback_types[] = {
1316 {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
1317 {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
1318 {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
1319 #ifndef OPENSSL_NO_DH
1320 {"Temp DH key bits", SSL_SECOP_TMP_DH},
1322 {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
1323 {"Shared Curve", SSL_SECOP_CURVE_SHARED},
1324 {"Check Curve", SSL_SECOP_CURVE_CHECK},
1325 {"Supported Signature Algorithm digest", SSL_SECOP_SIGALG_SUPPORTED},
1326 {"Shared Signature Algorithm digest", SSL_SECOP_SIGALG_SHARED},
1327 {"Check Signature Algorithm digest", SSL_SECOP_SIGALG_CHECK},
1328 {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
1329 {"Certificate chain EE key", SSL_SECOP_EE_KEY},
1330 {"Certificate chain CA key", SSL_SECOP_CA_KEY},
1331 {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
1332 {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
1333 {"Certificate chain CA digest", SSL_SECOP_CA_MD},
1334 {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
1335 {"SSL compression", SSL_SECOP_COMPRESSION},
1336 {"Session ticket", SSL_SECOP_TICKET},
1340 static int security_callback_debug(SSL *s, SSL_CTX *ctx,
1341 int op, int bits, int nid,
1342 void *other, void *ex)
1344 security_debug_ex *sdb = ex;
1345 int rv, show_bits = 1, cert_md = 0;
1347 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1348 if (rv == 1 && sdb->verbose < 2)
1350 BIO_puts(sdb->out, "Security callback: ");
1352 nm = lookup(op, callback_types, NULL);
1354 case SSL_SECOP_TICKET:
1355 case SSL_SECOP_COMPRESSION:
1359 case SSL_SECOP_VERSION:
1360 BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1364 case SSL_SECOP_CA_MD:
1365 case SSL_SECOP_PEER_CA_MD:
1370 BIO_printf(sdb->out, "%s=", nm);
1372 switch (op & SSL_SECOP_OTHER_TYPE) {
1374 case SSL_SECOP_OTHER_CIPHER:
1375 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1378 #ifndef OPENSSL_NO_EC
1379 case SSL_SECOP_OTHER_CURVE:
1382 cname = EC_curve_nid2nist(nid);
1384 cname = OBJ_nid2sn(nid);
1385 BIO_puts(sdb->out, cname);
1390 case SSL_SECOP_OTHER_DH:
1393 BIO_printf(sdb->out, "%d", BN_num_bits(dh->p));
1396 case SSL_SECOP_OTHER_CERT:
1399 int sig_nid = X509_get_signature_nid(other);
1400 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1402 EVP_PKEY *pkey = X509_get_pubkey(other);
1403 const char *algname = "";
1404 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1405 &algname, EVP_PKEY_get0_asn1(pkey));
1406 BIO_printf(sdb->out, "%s, bits=%d",
1407 algname, EVP_PKEY_bits(pkey));
1408 EVP_PKEY_free(pkey);
1412 case SSL_SECOP_OTHER_SIGALG:
1414 const unsigned char *salg = other;
1415 const char *sname = NULL;
1417 case TLSEXT_signature_anonymous:
1418 sname = "anonymous";
1420 case TLSEXT_signature_rsa:
1423 case TLSEXT_signature_dsa:
1426 case TLSEXT_signature_ecdsa:
1431 BIO_puts(sdb->out, OBJ_nid2sn(nid));
1433 BIO_printf(sdb->out, ", algorithm=%s", sname);
1435 BIO_printf(sdb->out, ", algid=%d", salg[1]);
1442 BIO_printf(sdb->out, ", security bits=%d", bits);
1443 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1447 void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1449 static security_debug_ex sdb;
1452 sdb.verbose = verbose;
1453 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1454 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1455 SSL_CTX_set0_security_ex_data(ctx, &sdb);