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 static unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
135 static 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 {"GOST01 Sign", TLS_CT_GOST01_SIGN},
295 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
297 const unsigned char *p;
299 int cert_type_num = SSL_get0_certificate_types(s, &p);
302 BIO_puts(bio, "Client Certificate Types: ");
303 for (i = 0; i < cert_type_num; i++) {
304 unsigned char cert_type = p[i];
305 const char *cname = lookup((int)cert_type, cert_type_list, NULL);
310 BIO_puts(bio, cname);
312 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
317 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
320 client = SSL_is_server(s) ? 0 : 1;
322 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
324 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
329 BIO_puts(out, "Shared ");
332 BIO_puts(out, "Requested ");
333 BIO_puts(out, "Signature Algorithms: ");
334 for (i = 0; i < nsig; i++) {
335 int hash_nid, sign_nid;
336 unsigned char rhash, rsign;
337 const char *sstr = NULL;
339 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
342 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
345 if (sign_nid == EVP_PKEY_RSA)
347 else if (sign_nid == EVP_PKEY_DSA)
349 else if (sign_nid == EVP_PKEY_EC)
352 BIO_printf(out, "%s+", sstr);
354 BIO_printf(out, "0x%02X+", (int)rsign);
355 if (hash_nid != NID_undef)
356 BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
358 BIO_printf(out, "0x%02X", (int)rhash);
364 int ssl_print_sigalgs(BIO *out, SSL *s)
367 if (!SSL_is_server(s))
368 ssl_print_client_cert_types(out, s);
369 do_print_sigalgs(out, s, 0);
370 do_print_sigalgs(out, s, 1);
371 if (SSL_get_peer_signature_nid(s, &mdnid))
372 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
376 #ifndef OPENSSL_NO_EC
377 int ssl_print_point_formats(BIO *out, SSL *s)
380 const char *pformats;
381 nformats = SSL_get0_ec_point_formats(s, &pformats);
384 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
385 for (i = 0; i < nformats; i++, pformats++) {
389 case TLSEXT_ECPOINTFORMAT_uncompressed:
390 BIO_puts(out, "uncompressed");
393 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
394 BIO_puts(out, "ansiX962_compressed_prime");
397 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
398 BIO_puts(out, "ansiX962_compressed_char2");
402 BIO_printf(out, "unknown(%d)", (int)*pformats);
408 BIO_puts(out, "NONE");
413 int ssl_print_curves(BIO *out, SSL *s, int noshared)
415 int i, ncurves, *curves, nid;
418 ncurves = SSL_get1_curves(s, NULL);
421 curves = app_malloc(ncurves * sizeof(int), "curves to print");
422 SSL_get1_curves(s, curves);
424 BIO_puts(out, "Supported Elliptic Curves: ");
425 for (i = 0; i < ncurves; i++) {
429 /* If unrecognised print out hex version */
430 if (nid & TLSEXT_nid_unknown)
431 BIO_printf(out, "0x%04X", nid & 0xFFFF);
433 /* Use NIST name for curve if it exists */
434 cname = EC_curve_nid2nist(nid);
436 cname = OBJ_nid2sn(nid);
437 BIO_printf(out, "%s", cname);
441 BIO_puts(out, "NONE");
442 OPENSSL_free(curves);
447 BIO_puts(out, "\nShared Elliptic curves: ");
448 ncurves = SSL_get_shared_curve(s, -1);
449 for (i = 0; i < ncurves; i++) {
452 nid = SSL_get_shared_curve(s, i);
453 cname = EC_curve_nid2nist(nid);
455 cname = OBJ_nid2sn(nid);
456 BIO_printf(out, "%s", cname);
459 BIO_puts(out, "NONE");
464 int ssl_print_tmp_key(BIO *out, SSL *s)
467 if (!SSL_get_server_tmp_key(s, &key))
469 BIO_puts(out, "Server Temp Key: ");
470 switch (EVP_PKEY_id(key)) {
472 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
476 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
478 #ifndef OPENSSL_NO_EC
481 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
484 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
486 cname = EC_curve_nid2nist(nid);
488 cname = OBJ_nid2sn(nid);
489 BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
497 long bio_dump_callback(BIO *bio, int cmd, const char *argp,
498 int argi, long argl, long ret)
502 out = (BIO *)BIO_get_callback_arg(bio);
506 if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
507 BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
508 (void *)bio, argp, (unsigned long)argi, ret, ret);
509 BIO_dump(out, argp, (int)ret);
511 } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
512 BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
513 (void *)bio, argp, (unsigned long)argi, ret, ret);
514 BIO_dump(out, argp, (int)ret);
519 void apps_ssl_info_callback(const SSL *s, int where, int ret)
524 w = where & ~SSL_ST_MASK;
526 if (w & SSL_ST_CONNECT)
528 else if (w & SSL_ST_ACCEPT)
533 if (where & SSL_CB_LOOP) {
534 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
535 } else if (where & SSL_CB_ALERT) {
536 str = (where & SSL_CB_READ) ? "read" : "write";
537 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
539 SSL_alert_type_string_long(ret),
540 SSL_alert_desc_string_long(ret));
541 } else if (where & SSL_CB_EXIT) {
543 BIO_printf(bio_err, "%s:failed in %s\n",
544 str, SSL_state_string_long(s));
546 BIO_printf(bio_err, "%s:error in %s\n",
547 str, SSL_state_string_long(s));
552 static STRINT_PAIR ssl_versions[] = {
553 {"SSL 3.0", SSL3_VERSION},
554 {"TLS 1.0", TLS1_VERSION},
555 {"TLS 1.1", TLS1_1_VERSION},
556 {"TLS 1.2", TLS1_2_VERSION},
557 {"DTLS 1.0", DTLS1_VERSION},
558 {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
561 static STRINT_PAIR alert_types[] = {
562 {" close_notify", 0},
563 {" unexpected_message", 10},
564 {" bad_record_mac", 20},
565 {" decryption_failed", 21},
566 {" record_overflow", 22},
567 {" decompression_failure", 30},
568 {" handshake_failure", 40},
569 {" bad_certificate", 42},
570 {" unsupported_certificate", 43},
571 {" certificate_revoked", 44},
572 {" certificate_expired", 45},
573 {" certificate_unknown", 46},
574 {" illegal_parameter", 47},
576 {" access_denied", 49},
577 {" decode_error", 50},
578 {" decrypt_error", 51},
579 {" export_restriction", 60},
580 {" protocol_version", 70},
581 {" insufficient_security", 71},
582 {" internal_error", 80},
583 {" user_canceled", 90},
584 {" no_renegotiation", 100},
585 {" unsupported_extension", 110},
586 {" certificate_unobtainable", 111},
587 {" unrecognized_name", 112},
588 {" bad_certificate_status_response", 113},
589 {" bad_certificate_hash_value", 114},
590 {" unknown_psk_identity", 115},
594 static STRINT_PAIR handshakes[] = {
595 {", HelloRequest", 0},
596 {", ClientHello", 1},
597 {", ServerHello", 2},
598 {", HelloVerifyRequest", 3},
599 {", NewSessionTicket", 4},
600 {", Certificate", 11},
601 {", ServerKeyExchange", 12},
602 {", CertificateRequest", 13},
603 {", ServerHelloDone", 14},
604 {", CertificateVerify", 15},
605 {", ClientKeyExchange", 16},
607 {", CertificateUrl", 21},
608 {", CertificateStatus", 22},
609 {", SupplementalData", 23},
613 void msg_cb(int write_p, int version, int content_type, const void *buf,
614 size_t len, SSL *ssl, void *arg)
617 const char *str_write_p = write_p ? ">>>" : "<<<";
618 const char *str_version = lookup(version, ssl_versions, "???");
619 const char *str_content_type = "", *str_details1 = "", *str_details2 = "";
620 const unsigned char* bp = buf;
622 if (version == SSL3_VERSION ||
623 version == TLS1_VERSION ||
624 version == TLS1_1_VERSION ||
625 version == TLS1_2_VERSION ||
626 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
627 switch (content_type) {
629 str_content_type = "ChangeCipherSpec";
632 str_content_type = "Alert";
633 str_details1 = ", ???";
637 str_details1 = ", warning";
640 str_details1 = ", fatal";
643 str_details2 = lookup((int)bp[1], alert_types, " ???");
647 str_content_type = "Handshake";
648 str_details1 = "???";
650 str_details1 = lookup((int)bp[0], handshakes, "???");
653 str_content_type = "ApplicationData";
655 #ifndef OPENSSL_NO_HEARTBEATS
657 str_details1 = ", Heartbeat";
662 str_details1 = ", HeartbeatRequest";
665 str_details1 = ", HeartbeatResponse";
674 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
675 str_content_type, (unsigned long)len, str_details1,
681 BIO_printf(bio, " ");
683 for (i = 0; i < num; i++) {
684 if (i % 16 == 0 && i > 0)
685 BIO_printf(bio, "\n ");
686 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
689 BIO_printf(bio, " ...");
690 BIO_printf(bio, "\n");
692 (void)BIO_flush(bio);
695 static STRINT_PAIR tlsext_types[] = {
696 {"server name", TLSEXT_TYPE_server_name},
697 {"max fragment length", TLSEXT_TYPE_max_fragment_length},
698 {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
699 {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
700 {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
701 {"status request", TLSEXT_TYPE_status_request},
702 {"user mapping", TLSEXT_TYPE_user_mapping},
703 {"client authz", TLSEXT_TYPE_client_authz},
704 {"server authz", TLSEXT_TYPE_server_authz},
705 {"cert type", TLSEXT_TYPE_cert_type},
706 {"elliptic curves", TLSEXT_TYPE_elliptic_curves},
707 {"EC point formats", TLSEXT_TYPE_ec_point_formats},
708 {"SRP", TLSEXT_TYPE_srp},
709 {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
710 {"use SRTP", TLSEXT_TYPE_use_srtp},
711 {"heartbeat", TLSEXT_TYPE_heartbeat},
712 {"session ticket", TLSEXT_TYPE_session_ticket},
713 {"renegotiation info", TLSEXT_TYPE_renegotiate},
714 {"TLS padding", TLSEXT_TYPE_padding},
715 #ifdef TLSEXT_TYPE_next_proto_neg
716 {"next protocol", TLSEXT_TYPE_next_proto_neg},
718 #ifdef TLSEXT_TYPE_encrypt_then_mac
719 {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
721 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
722 {"application layer protocol negotiation",
723 TLSEXT_TYPE_application_layer_protocol_negotiation},
725 #ifdef TLSEXT_TYPE_extended_master_secret
726 {"extended master secret", TLSEXT_TYPE_extended_master_secret},
731 void tlsext_cb(SSL *s, int client_server, int type,
732 const unsigned char *data, int len, void *arg)
735 const char *extname = lookup(type, tlsext_types, "unknown");
737 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
738 client_server ? "server" : "client", extname, type, len);
739 BIO_dump(bio, (const char *)data, len);
740 (void)BIO_flush(bio);
743 int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
744 unsigned int *cookie_len)
746 unsigned char *buffer;
749 BIO_ADDR *peer = NULL;
751 /* Initialize a random secret */
752 if (!cookie_initialized) {
753 if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
754 BIO_printf(bio_err, "error setting random cookie secret\n");
757 cookie_initialized = 1;
760 peer = BIO_ADDR_new();
762 BIO_printf(bio_err, "memory full\n");
766 /* Read peer information */
767 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer);
769 /* Create buffer with peer's address and port */
770 BIO_ADDR_rawaddress(peer, NULL, &length);
771 OPENSSL_assert(length != 0);
772 port = BIO_ADDR_rawport(peer);
773 length += sizeof(port);
774 buffer = app_malloc(length, "cookie generate buffer");
776 memcpy(buffer, &port, sizeof(port));
777 BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL);
779 /* Calculate HMAC of buffer using the secret */
780 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
781 buffer, length, cookie, cookie_len);
783 OPENSSL_free(buffer);
789 int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
790 unsigned int cookie_len)
792 unsigned char result[EVP_MAX_MD_SIZE];
793 unsigned int resultlength;
795 /* Note: we check cookie_initialized because if it's not,
796 * it cannot be valid */
797 if (cookie_initialized
798 && generate_cookie_callback(ssl, result, &resultlength)
799 && cookie_len == resultlength
800 && memcmp(result, cookie, resultlength) == 0)
807 * Example of extended certificate handling. Where the standard support of
808 * one certificate per algorithm is not sufficient an application can decide
809 * which certificate(s) to use at runtime based on whatever criteria it deems
813 /* Linked list of certificates, keys and chains */
814 struct ssl_excert_st {
816 const char *certfile;
819 const char *chainfile;
822 STACK_OF(X509) *chain;
824 struct ssl_excert_st *next, *prev;
827 static STRINT_PAIR chain_flags[] = {
828 {"Overall Validity", CERT_PKEY_VALID},
829 {"Sign with EE key", CERT_PKEY_SIGN},
830 {"EE signature", CERT_PKEY_EE_SIGNATURE},
831 {"CA signature", CERT_PKEY_CA_SIGNATURE},
832 {"EE key parameters", CERT_PKEY_EE_PARAM},
833 {"CA key parameters", CERT_PKEY_CA_PARAM},
834 {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
835 {"Issuer Name", CERT_PKEY_ISSUER_NAME},
836 {"Certificate Type", CERT_PKEY_CERT_TYPE},
840 static void print_chain_flags(SSL *s, int flags)
844 for (pp = chain_flags; pp->name; ++pp)
845 BIO_printf(bio_err, "\t%s: %s\n",
847 (flags & pp->retval) ? "OK" : "NOT OK");
848 BIO_printf(bio_err, "\tSuite B: ");
849 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
850 BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
852 BIO_printf(bio_err, "not tested\n");
856 * Very basic selection callback: just use any certificate chain reported as
857 * valid. More sophisticated could prioritise according to local policy.
859 static int set_cert_cb(SSL *ssl, void *arg)
862 SSL_EXCERT *exc = arg;
863 #ifdef CERT_CB_TEST_RETRY
864 static int retry_cnt;
868 "Certificate callback retry test: count %d\n",
873 SSL_certs_clear(ssl);
879 * Go to end of list and traverse backwards since we prepend newer
880 * entries this retains the original order.
889 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
890 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
891 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
893 BIO_puts(bio_err, "\n");
894 print_chain_flags(ssl, rv);
895 if (rv & CERT_PKEY_VALID) {
896 if (!SSL_use_certificate(ssl, exc->cert)
897 || !SSL_use_PrivateKey(ssl, exc->key)) {
901 * NB: we wouldn't normally do this as it is not efficient
902 * building chains on each connection better to cache the chain
905 if (exc->build_chain) {
906 if (!SSL_build_cert_chain(ssl, 0))
908 } else if (exc->chain)
909 SSL_set1_chain(ssl, exc->chain);
916 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
918 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
921 static int ssl_excert_prepend(SSL_EXCERT **pexc)
923 SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
925 memset(exc, 0, sizeof(*exc));
931 exc->certform = exc->next->certform;
932 exc->keyform = exc->next->keyform;
933 exc->next->prev = exc;
935 exc->certform = FORMAT_PEM;
936 exc->keyform = FORMAT_PEM;
942 void ssl_excert_free(SSL_EXCERT *exc)
949 X509_free(exc->cert);
950 EVP_PKEY_free(exc->key);
951 sk_X509_pop_free(exc->chain, X509_free);
958 int load_excert(SSL_EXCERT **pexc)
960 SSL_EXCERT *exc = *pexc;
963 /* If nothing in list, free and set to NULL */
964 if (!exc->certfile && !exc->next) {
965 ssl_excert_free(exc);
969 for (; exc; exc = exc->next) {
970 if (!exc->certfile) {
971 BIO_printf(bio_err, "Missing filename\n");
974 exc->cert = load_cert(exc->certfile, exc->certform,
975 NULL, NULL, "Server Certificate");
979 exc->key = load_key(exc->keyfile, exc->keyform,
980 0, NULL, NULL, "Server Key");
982 exc->key = load_key(exc->certfile, exc->certform,
983 0, NULL, NULL, "Server Key");
987 if (exc->chainfile) {
988 if (!load_certs(exc->chainfile, &exc->chain, FORMAT_PEM, NULL,
989 NULL, "Server Chain"))
996 enum range { OPT_X_ENUM };
998 int args_excert(int opt, SSL_EXCERT **pexc)
1000 SSL_EXCERT *exc = *pexc;
1002 assert(opt > OPT_X__FIRST);
1003 assert(opt < OPT_X__LAST);
1006 if (!ssl_excert_prepend(&exc)) {
1007 BIO_printf(bio_err, " %s: Error initialising xcert\n",
1014 switch ((enum range)opt) {
1019 if (exc->certfile && !ssl_excert_prepend(&exc)) {
1020 BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
1023 exc->certfile = opt_arg();
1027 BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
1030 exc->keyfile = opt_arg();
1033 if (exc->chainfile) {
1034 BIO_printf(bio_err, "%s: Chain already specified\n",
1038 exc->chainfile = opt_arg();
1040 case OPT_X_CHAIN_BUILD:
1041 exc->build_chain = 1;
1043 case OPT_X_CERTFORM:
1044 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->certform))
1048 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->keyform))
1055 ERR_print_errors(bio_err);
1056 ssl_excert_free(exc);
1061 static void print_raw_cipherlist(SSL *s)
1063 const unsigned char *rlist;
1064 static const unsigned char scsv_id[] = { 0, 0, 0xFF };
1065 size_t i, rlistlen, num;
1066 if (!SSL_is_server(s))
1068 num = SSL_get0_raw_cipherlist(s, NULL);
1069 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
1070 BIO_puts(bio_err, "Client cipher list: ");
1071 for (i = 0; i < rlistlen; i += num, rlist += num) {
1072 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
1074 BIO_puts(bio_err, ":");
1076 BIO_puts(bio_err, SSL_CIPHER_get_name(c));
1077 else if (!memcmp(rlist, scsv_id - num + 3, num))
1078 BIO_puts(bio_err, "SCSV");
1081 BIO_puts(bio_err, "0x");
1082 for (j = 0; j < num; j++)
1083 BIO_printf(bio_err, "%02X", rlist[j]);
1086 BIO_puts(bio_err, "\n");
1089 void print_ssl_summary(SSL *s)
1091 const SSL_CIPHER *c;
1093 /* const char *pnam = SSL_is_server(s) ? "client" : "server"; */
1095 BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
1096 print_raw_cipherlist(s);
1097 c = SSL_get_current_cipher(s);
1098 BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1099 do_print_sigalgs(bio_err, s, 0);
1100 peer = SSL_get_peer_certificate(s);
1103 BIO_puts(bio_err, "Peer certificate: ");
1104 X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1105 0, XN_FLAG_ONELINE);
1106 BIO_puts(bio_err, "\n");
1107 if (SSL_get_peer_signature_nid(s, &nid))
1108 BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1110 BIO_puts(bio_err, "No peer certificate\n");
1112 #ifndef OPENSSL_NO_EC
1113 ssl_print_point_formats(bio_err, s);
1114 if (SSL_is_server(s))
1115 ssl_print_curves(bio_err, s, 1);
1117 ssl_print_tmp_key(bio_err, s);
1119 if (!SSL_is_server(s))
1120 ssl_print_tmp_key(bio_err, s);
1124 int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
1125 SSL_CTX *ctx, int no_jpake)
1129 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1130 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1131 const char *flag = sk_OPENSSL_STRING_value(str, i);
1132 const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
1133 #ifndef OPENSSL_NO_JPAKE
1134 if (!no_jpake && (strcmp(flag, "-cipher") == 0)) {
1135 BIO_puts(bio_err, "JPAKE sets cipher to PSK\n");
1139 if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
1141 BIO_printf(bio_err, "Error with command: \"%s %s\"\n",
1144 BIO_printf(bio_err, "Error with command: \"%s\"\n", flag);
1145 ERR_print_errors(bio_err);
1149 #ifndef OPENSSL_NO_JPAKE
1151 if (SSL_CONF_cmd(cctx, "-cipher", "PSK") <= 0) {
1152 BIO_puts(bio_err, "Error setting cipher to PSK\n");
1153 ERR_print_errors(bio_err);
1158 if (!SSL_CONF_CTX_finish(cctx)) {
1159 BIO_puts(bio_err, "Error finishing context\n");
1160 ERR_print_errors(bio_err);
1166 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1170 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1171 crl = sk_X509_CRL_value(crls, i);
1172 X509_STORE_add_crl(st, crl);
1177 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1180 st = SSL_CTX_get_cert_store(ctx);
1181 add_crls_store(st, crls);
1183 store_setup_crl_download(st);
1187 int ssl_load_stores(SSL_CTX *ctx,
1188 const char *vfyCApath, const char *vfyCAfile,
1189 const char *chCApath, const char *chCAfile,
1190 STACK_OF(X509_CRL) *crls, int crl_download)
1192 X509_STORE *vfy = NULL, *ch = NULL;
1194 if (vfyCApath != NULL || vfyCAfile != NULL) {
1195 vfy = X509_STORE_new();
1198 if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
1200 add_crls_store(vfy, crls);
1201 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1203 store_setup_crl_download(vfy);
1205 if (chCApath != NULL || chCAfile != NULL) {
1206 ch = X509_STORE_new();
1209 if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
1211 SSL_CTX_set1_chain_cert_store(ctx, ch);
1215 X509_STORE_free(vfy);
1216 X509_STORE_free(ch);
1220 /* Verbose print out of security callback */
1225 int (*old_cb) (SSL *s, SSL_CTX *ctx, int op, int bits, int nid,
1226 void *other, void *ex);
1227 } security_debug_ex;
1229 static STRINT_PAIR callback_types[] = {
1230 {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
1231 {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
1232 {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
1233 #ifndef OPENSSL_NO_DH
1234 {"Temp DH key bits", SSL_SECOP_TMP_DH},
1236 {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
1237 {"Shared Curve", SSL_SECOP_CURVE_SHARED},
1238 {"Check Curve", SSL_SECOP_CURVE_CHECK},
1239 {"Supported Signature Algorithm digest", SSL_SECOP_SIGALG_SUPPORTED},
1240 {"Shared Signature Algorithm digest", SSL_SECOP_SIGALG_SHARED},
1241 {"Check Signature Algorithm digest", SSL_SECOP_SIGALG_CHECK},
1242 {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
1243 {"Certificate chain EE key", SSL_SECOP_EE_KEY},
1244 {"Certificate chain CA key", SSL_SECOP_CA_KEY},
1245 {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
1246 {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
1247 {"Certificate chain CA digest", SSL_SECOP_CA_MD},
1248 {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
1249 {"SSL compression", SSL_SECOP_COMPRESSION},
1250 {"Session ticket", SSL_SECOP_TICKET},
1254 static int security_callback_debug(SSL *s, SSL_CTX *ctx,
1255 int op, int bits, int nid,
1256 void *other, void *ex)
1258 security_debug_ex *sdb = ex;
1259 int rv, show_bits = 1, cert_md = 0;
1261 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1262 if (rv == 1 && sdb->verbose < 2)
1264 BIO_puts(sdb->out, "Security callback: ");
1266 nm = lookup(op, callback_types, NULL);
1268 case SSL_SECOP_TICKET:
1269 case SSL_SECOP_COMPRESSION:
1273 case SSL_SECOP_VERSION:
1274 BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1278 case SSL_SECOP_CA_MD:
1279 case SSL_SECOP_PEER_CA_MD:
1284 BIO_printf(sdb->out, "%s=", nm);
1286 switch (op & SSL_SECOP_OTHER_TYPE) {
1288 case SSL_SECOP_OTHER_CIPHER:
1289 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1292 #ifndef OPENSSL_NO_EC
1293 case SSL_SECOP_OTHER_CURVE:
1296 cname = EC_curve_nid2nist(nid);
1298 cname = OBJ_nid2sn(nid);
1299 BIO_puts(sdb->out, cname);
1303 #ifndef OPENSSL_NO_DH
1304 case SSL_SECOP_OTHER_DH:
1307 BIO_printf(sdb->out, "%d", BN_num_bits(dh->p));
1311 case SSL_SECOP_OTHER_CERT:
1314 int sig_nid = X509_get_signature_nid(other);
1315 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1317 EVP_PKEY *pkey = X509_get0_pubkey(other);
1318 const char *algname = "";
1319 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1320 &algname, EVP_PKEY_get0_asn1(pkey));
1321 BIO_printf(sdb->out, "%s, bits=%d",
1322 algname, EVP_PKEY_bits(pkey));
1326 case SSL_SECOP_OTHER_SIGALG:
1328 const unsigned char *salg = other;
1329 const char *sname = NULL;
1331 case TLSEXT_signature_anonymous:
1332 sname = "anonymous";
1334 case TLSEXT_signature_rsa:
1337 case TLSEXT_signature_dsa:
1340 case TLSEXT_signature_ecdsa:
1345 BIO_puts(sdb->out, OBJ_nid2sn(nid));
1347 BIO_printf(sdb->out, ", algorithm=%s", sname);
1349 BIO_printf(sdb->out, ", algid=%d", salg[1]);
1356 BIO_printf(sdb->out, ", security bits=%d", bits);
1357 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1361 void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1363 static security_debug_ex sdb;
1366 sdb.verbose = verbose;
1367 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1368 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1369 SSL_CTX_set0_security_ex_data(ctx, &sdb);