1 /* apps/s_cb.c - callback functions used by s_client, s_server, and s_time */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
58 /* ====================================================================
59 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
119 #include <openssl/err.h>
120 #include <openssl/rand.h>
121 #include <openssl/x509.h>
122 #include <openssl/ssl.h>
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 int verify_callback(int ok, X509_STORE_CTX *ctx)
143 err_cert = X509_STORE_CTX_get_current_cert(ctx);
144 err = X509_STORE_CTX_get_error(ctx);
145 depth = X509_STORE_CTX_get_error_depth(ctx);
147 if (!verify_quiet || !ok) {
148 BIO_printf(bio_err, "depth=%d ", depth);
150 X509_NAME_print_ex(bio_err,
151 X509_get_subject_name(err_cert),
153 BIO_puts(bio_err, "\n");
155 BIO_puts(bio_err, "<no cert>\n");
158 BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
159 X509_verify_cert_error_string(err));
160 if (verify_depth >= depth) {
161 if (!verify_return_error)
163 verify_error = X509_V_OK;
166 verify_error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
170 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
171 BIO_puts(bio_err, "issuer= ");
172 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
174 BIO_puts(bio_err, "\n");
176 case X509_V_ERR_CERT_NOT_YET_VALID:
177 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
178 BIO_printf(bio_err, "notBefore=");
179 ASN1_TIME_print(bio_err, X509_get_notBefore(err_cert));
180 BIO_printf(bio_err, "\n");
182 case X509_V_ERR_CERT_HAS_EXPIRED:
183 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
184 BIO_printf(bio_err, "notAfter=");
185 ASN1_TIME_print(bio_err, X509_get_notAfter(err_cert));
186 BIO_printf(bio_err, "\n");
188 case X509_V_ERR_NO_EXPLICIT_POLICY:
190 policies_print(bio_err, ctx);
193 if (err == X509_V_OK && ok == 2 && !verify_quiet)
194 policies_print(bio_err, ctx);
195 if (ok && !verify_quiet)
196 BIO_printf(bio_err, "verify return:%d\n", ok);
200 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
202 if (cert_file != NULL) {
208 if (SSL_CTX_use_certificate_file(ctx, cert_file,
209 SSL_FILETYPE_PEM) <= 0) {
210 BIO_printf(bio_err, "unable to get certificate from '%s'\n",
212 ERR_print_errors(bio_err);
215 if (key_file == NULL)
216 key_file = cert_file;
217 if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
218 BIO_printf(bio_err, "unable to get private key from '%s'\n",
220 ERR_print_errors(bio_err);
225 In theory this is no longer needed
227 x509=SSL_get_certificate(ssl);
231 pktmp = X509_get_pubkey(x509);
232 EVP_PKEY_copy_parameters(pktmp,
233 SSL_get_privatekey(ssl));
234 EVP_PKEY_free(pktmp);
240 * If we are using DSA, we can copy the parameters from the private
245 * Now we know that a key and cert have been set against the SSL
248 if (!SSL_CTX_check_private_key(ctx)) {
250 "Private key does not match the certificate public key\n");
257 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
258 STACK_OF(X509) *chain, int build_chain)
260 int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
263 if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
264 BIO_printf(bio_err, "error setting certificate\n");
265 ERR_print_errors(bio_err);
269 if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
270 BIO_printf(bio_err, "error setting private key\n");
271 ERR_print_errors(bio_err);
276 * Now we know that a key and cert have been set against the SSL context
278 if (!SSL_CTX_check_private_key(ctx)) {
280 "Private key does not match the certificate public key\n");
283 if (chain && !SSL_CTX_set1_chain(ctx, chain)) {
284 BIO_printf(bio_err, "error setting certificate chain\n");
285 ERR_print_errors(bio_err);
288 if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) {
289 BIO_printf(bio_err, "error building certificate chain\n");
290 ERR_print_errors(bio_err);
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];
308 case TLS_CT_RSA_SIGN:
312 case TLS_CT_DSS_SIGN:
316 case TLS_CT_RSA_FIXED_DH:
317 cname = "RSA fixed DH";
320 case TLS_CT_DSS_FIXED_DH:
321 cname = "DSS fixed DH";
324 case TLS_CT_ECDSA_SIGN:
325 cname = "ECDSA sign";
328 case TLS_CT_RSA_FIXED_ECDH:
329 cname = "RSA fixed ECDH";
332 case TLS_CT_ECDSA_FIXED_ECDH:
333 cname = "ECDSA fixed ECDH";
336 case TLS_CT_GOST94_SIGN:
337 cname = "GOST94 Sign";
340 case TLS_CT_GOST01_SIGN:
341 cname = "GOST01 Sign";
352 BIO_puts(bio, cname);
354 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
359 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
362 client = SSL_is_server(s) ? 0 : 1;
364 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
366 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
371 BIO_puts(out, "Shared ");
374 BIO_puts(out, "Requested ");
375 BIO_puts(out, "Signature Algorithms: ");
376 for (i = 0; i < nsig; i++) {
377 int hash_nid, sign_nid;
378 unsigned char rhash, rsign;
379 const char *sstr = NULL;
381 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
384 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
387 if (sign_nid == EVP_PKEY_RSA)
389 else if (sign_nid == EVP_PKEY_DSA)
391 else if (sign_nid == EVP_PKEY_EC)
394 BIO_printf(out, "%s+", sstr);
396 BIO_printf(out, "0x%02X+", (int)rsign);
397 if (hash_nid != NID_undef)
398 BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
400 BIO_printf(out, "0x%02X", (int)rhash);
406 int ssl_print_sigalgs(BIO *out, SSL *s)
409 if (!SSL_is_server(s))
410 ssl_print_client_cert_types(out, s);
411 do_print_sigalgs(out, s, 0);
412 do_print_sigalgs(out, s, 1);
413 if (SSL_get_peer_signature_nid(s, &mdnid))
414 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
418 #ifndef OPENSSL_NO_EC
419 int ssl_print_point_formats(BIO *out, SSL *s)
422 const char *pformats;
423 nformats = SSL_get0_ec_point_formats(s, &pformats);
426 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
427 for (i = 0; i < nformats; i++, pformats++) {
431 case TLSEXT_ECPOINTFORMAT_uncompressed:
432 BIO_puts(out, "uncompressed");
435 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
436 BIO_puts(out, "ansiX962_compressed_prime");
439 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
440 BIO_puts(out, "ansiX962_compressed_char2");
444 BIO_printf(out, "unknown(%d)", (int)*pformats);
450 BIO_puts(out, "NONE");
455 int ssl_print_curves(BIO *out, SSL *s, int noshared)
457 int i, ncurves, *curves, nid;
459 ncurves = SSL_get1_curves(s, NULL);
462 curves = OPENSSL_malloc(ncurves * sizeof(int));
463 SSL_get1_curves(s, curves);
465 BIO_puts(out, "Supported Elliptic Curves: ");
466 for (i = 0; i < ncurves; i++) {
470 /* If unrecognised print out hex version */
471 if (nid & TLSEXT_nid_unknown)
472 BIO_printf(out, "0x%04X", nid & 0xFFFF);
474 /* Use NIST name for curve if it exists */
475 cname = EC_curve_nid2nist(nid);
477 cname = OBJ_nid2sn(nid);
478 BIO_printf(out, "%s", cname);
482 BIO_puts(out, "NONE");
483 OPENSSL_free(curves);
488 BIO_puts(out, "\nShared Elliptic curves: ");
489 ncurves = SSL_get_shared_curve(s, -1);
490 for (i = 0; i < ncurves; i++) {
493 nid = SSL_get_shared_curve(s, i);
494 cname = EC_curve_nid2nist(nid);
496 cname = OBJ_nid2sn(nid);
497 BIO_printf(out, "%s", cname);
500 BIO_puts(out, "NONE");
505 int ssl_print_tmp_key(BIO *out, SSL *s)
508 if (!SSL_get_server_tmp_key(s, &key))
510 BIO_puts(out, "Server Temp Key: ");
511 switch (EVP_PKEY_id(key)) {
513 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
517 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
519 #ifndef OPENSSL_NO_ECDH
522 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
525 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
527 cname = EC_curve_nid2nist(nid);
529 cname = OBJ_nid2sn(nid);
530 BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
538 long bio_dump_callback(BIO *bio, int cmd, const char *argp,
539 int argi, long argl, long ret)
543 out = (BIO *)BIO_get_callback_arg(bio);
547 if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
548 BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
549 (void *)bio, argp, (unsigned long)argi, ret, ret);
550 BIO_dump(out, argp, (int)ret);
552 } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
553 BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
554 (void *)bio, argp, (unsigned long)argi, ret, ret);
555 BIO_dump(out, argp, (int)ret);
560 void apps_ssl_info_callback(const SSL *s, int where, int ret)
565 w = where & ~SSL_ST_MASK;
567 if (w & SSL_ST_CONNECT)
569 else if (w & SSL_ST_ACCEPT)
574 if (where & SSL_CB_LOOP) {
575 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
576 } else if (where & SSL_CB_ALERT) {
577 str = (where & SSL_CB_READ) ? "read" : "write";
578 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
580 SSL_alert_type_string_long(ret),
581 SSL_alert_desc_string_long(ret));
582 } else if (where & SSL_CB_EXIT) {
584 BIO_printf(bio_err, "%s:failed in %s\n",
585 str, SSL_state_string_long(s));
587 BIO_printf(bio_err, "%s:error in %s\n",
588 str, SSL_state_string_long(s));
593 static const char *ssl_version_str(int version)
607 return "DTLS 1.0 (bad)";
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, *str_version, *str_content_type =
618 "", *str_details1 = "", *str_details2 = "";
620 str_write_p = write_p ? ">>>" : "<<<";
622 str_version = ssl_version_str(version);
624 if (version == SSL3_VERSION ||
625 version == TLS1_VERSION ||
626 version == TLS1_1_VERSION ||
627 version == TLS1_2_VERSION ||
628 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
629 switch (content_type) {
631 str_content_type = "ChangeCipherSpec";
634 str_content_type = "Alert";
637 str_content_type = "Handshake";
641 if (content_type == 21) { /* Alert */
642 str_details1 = ", ???";
645 switch (((const unsigned char *)buf)[0]) {
647 str_details1 = ", warning";
650 str_details1 = ", fatal";
654 str_details2 = " ???";
655 switch (((const unsigned char *)buf)[1]) {
657 str_details2 = " close_notify";
660 str_details2 = " unexpected_message";
663 str_details2 = " bad_record_mac";
666 str_details2 = " decryption_failed";
669 str_details2 = " record_overflow";
672 str_details2 = " decompression_failure";
675 str_details2 = " handshake_failure";
678 str_details2 = " bad_certificate";
681 str_details2 = " unsupported_certificate";
684 str_details2 = " certificate_revoked";
687 str_details2 = " certificate_expired";
690 str_details2 = " certificate_unknown";
693 str_details2 = " illegal_parameter";
696 str_details2 = " unknown_ca";
699 str_details2 = " access_denied";
702 str_details2 = " decode_error";
705 str_details2 = " decrypt_error";
708 str_details2 = " export_restriction";
711 str_details2 = " protocol_version";
714 str_details2 = " insufficient_security";
717 str_details2 = " internal_error";
720 str_details2 = " user_canceled";
723 str_details2 = " no_renegotiation";
726 str_details2 = " unsupported_extension";
729 str_details2 = " certificate_unobtainable";
732 str_details2 = " unrecognized_name";
735 str_details2 = " bad_certificate_status_response";
738 str_details2 = " bad_certificate_hash_value";
741 str_details2 = " unknown_psk_identity";
747 if (content_type == 22) { /* Handshake */
748 str_details1 = "???";
751 switch (((const unsigned char *)buf)[0]) {
753 str_details1 = ", HelloRequest";
756 str_details1 = ", ClientHello";
759 str_details1 = ", ServerHello";
762 str_details1 = ", HelloVerifyRequest";
765 str_details1 = ", Certificate";
768 str_details1 = ", ServerKeyExchange";
771 str_details1 = ", CertificateRequest";
774 str_details1 = ", ServerHelloDone";
777 str_details1 = ", CertificateVerify";
780 str_details1 = ", ClientKeyExchange";
783 str_details1 = ", Finished";
788 #ifndef OPENSSL_NO_HEARTBEATS
789 if (content_type == 24) { /* Heartbeat */
790 str_details1 = ", Heartbeat";
793 switch (((const unsigned char *)buf)[0]) {
795 str_details1 = ", HeartbeatRequest";
798 str_details1 = ", HeartbeatResponse";
806 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
807 str_content_type, (unsigned long)len, str_details1,
813 BIO_printf(bio, " ");
815 for (i = 0; i < num; i++) {
816 if (i % 16 == 0 && i > 0)
817 BIO_printf(bio, "\n ");
818 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
821 BIO_printf(bio, " ...");
822 BIO_printf(bio, "\n");
824 (void)BIO_flush(bio);
827 void tlsext_cb(SSL *s, int client_server, int type,
828 unsigned char *data, int len, void *arg)
834 case TLSEXT_TYPE_server_name:
835 extname = "server name";
838 case TLSEXT_TYPE_max_fragment_length:
839 extname = "max fragment length";
842 case TLSEXT_TYPE_client_certificate_url:
843 extname = "client certificate URL";
846 case TLSEXT_TYPE_trusted_ca_keys:
847 extname = "trusted CA keys";
850 case TLSEXT_TYPE_truncated_hmac:
851 extname = "truncated HMAC";
854 case TLSEXT_TYPE_status_request:
855 extname = "status request";
858 case TLSEXT_TYPE_user_mapping:
859 extname = "user mapping";
862 case TLSEXT_TYPE_client_authz:
863 extname = "client authz";
866 case TLSEXT_TYPE_server_authz:
867 extname = "server authz";
870 case TLSEXT_TYPE_cert_type:
871 extname = "cert type";
874 case TLSEXT_TYPE_elliptic_curves:
875 extname = "elliptic curves";
878 case TLSEXT_TYPE_ec_point_formats:
879 extname = "EC point formats";
882 case TLSEXT_TYPE_srp:
886 case TLSEXT_TYPE_signature_algorithms:
887 extname = "signature algorithms";
890 case TLSEXT_TYPE_use_srtp:
891 extname = "use SRTP";
894 case TLSEXT_TYPE_heartbeat:
895 extname = "heartbeat";
898 case TLSEXT_TYPE_session_ticket:
899 extname = "session ticket";
902 case TLSEXT_TYPE_renegotiate:
903 extname = "renegotiation info";
906 #ifdef TLSEXT_TYPE_next_proto_neg
907 case TLSEXT_TYPE_next_proto_neg:
908 extname = "next protocol";
911 #ifdef TLSEXT_TYPE_encrypt_then_mac
912 case TLSEXT_TYPE_encrypt_then_mac:
913 extname = "encrypt-then-mac";
916 case TLSEXT_TYPE_padding:
917 extname = "TLS padding";
926 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
927 client_server ? "server" : "client", extname, type, len);
928 BIO_dump(bio, (char *)data, len);
929 (void)BIO_flush(bio);
932 int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
933 unsigned int *cookie_len)
935 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
936 unsigned int length, resultlength;
939 struct sockaddr_in s4;
941 struct sockaddr_in6 s6;
945 /* Initialize a random secret */
946 if (!cookie_initialized) {
947 if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH)) {
948 BIO_printf(bio_err, "error setting random cookie secret\n");
951 cookie_initialized = 1;
954 /* Read peer information */
955 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
957 /* Create buffer with peer's address and port */
959 switch (peer.sa.sa_family) {
961 length += sizeof(struct in_addr);
962 length += sizeof(peer.s4.sin_port);
966 length += sizeof(struct in6_addr);
967 length += sizeof(peer.s6.sin6_port);
974 buffer = OPENSSL_malloc(length);
976 if (buffer == NULL) {
977 BIO_printf(bio_err, "out of memory\n");
981 switch (peer.sa.sa_family) {
983 memcpy(buffer, &peer.s4.sin_port, sizeof(peer.s4.sin_port));
984 memcpy(buffer + sizeof(peer.s4.sin_port),
985 &peer.s4.sin_addr, sizeof(struct in_addr));
989 memcpy(buffer, &peer.s6.sin6_port, sizeof(peer.s6.sin6_port));
990 memcpy(buffer + sizeof(peer.s6.sin6_port),
991 &peer.s6.sin6_addr, sizeof(struct in6_addr));
999 /* Calculate HMAC of buffer using the secret */
1000 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1001 buffer, length, result, &resultlength);
1002 OPENSSL_free(buffer);
1004 memcpy(cookie, result, resultlength);
1005 *cookie_len = resultlength;
1010 int verify_cookie_callback(SSL *ssl, unsigned char *cookie,
1011 unsigned int cookie_len)
1013 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
1014 unsigned int length, resultlength;
1017 struct sockaddr_in s4;
1018 #if OPENSSL_USE_IPV6
1019 struct sockaddr_in6 s6;
1023 /* If secret isn't initialized yet, the cookie can't be valid */
1024 if (!cookie_initialized)
1027 /* Read peer information */
1028 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1030 /* Create buffer with peer's address and port */
1032 switch (peer.sa.sa_family) {
1034 length += sizeof(struct in_addr);
1035 length += sizeof(peer.s4.sin_port);
1037 #if OPENSSL_USE_IPV6
1039 length += sizeof(struct in6_addr);
1040 length += sizeof(peer.s6.sin6_port);
1047 buffer = OPENSSL_malloc(length);
1049 if (buffer == NULL) {
1050 BIO_printf(bio_err, "out of memory\n");
1054 switch (peer.sa.sa_family) {
1056 memcpy(buffer, &peer.s4.sin_port, sizeof(peer.s4.sin_port));
1057 memcpy(buffer + sizeof(peer.s4.sin_port),
1058 &peer.s4.sin_addr, sizeof(struct in_addr));
1060 #if OPENSSL_USE_IPV6
1062 memcpy(buffer, &peer.s6.sin6_port, sizeof(peer.s6.sin6_port));
1063 memcpy(buffer + sizeof(peer.s6.sin6_port),
1064 &peer.s6.sin6_addr, sizeof(struct in6_addr));
1072 /* Calculate HMAC of buffer using the secret */
1073 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1074 buffer, length, result, &resultlength);
1075 OPENSSL_free(buffer);
1077 if (cookie_len == resultlength
1078 && memcmp(result, cookie, resultlength) == 0)
1085 * Example of extended certificate handling. Where the standard support of
1086 * one certificate per algorithm is not sufficient an application can decide
1087 * which certificate(s) to use at runtime based on whatever criteria it deems
1091 /* Linked list of certificates, keys and chains */
1092 struct ssl_excert_st {
1094 const char *certfile;
1096 const char *keyfile;
1097 const char *chainfile;
1100 STACK_OF(X509) *chain;
1102 struct ssl_excert_st *next, *prev;
1105 struct chain_flags {
1110 struct chain_flags chain_flags_list[] = {
1111 {CERT_PKEY_VALID, "Overall Validity"},
1112 {CERT_PKEY_SIGN, "Sign with EE key"},
1113 {CERT_PKEY_EE_SIGNATURE, "EE signature"},
1114 {CERT_PKEY_CA_SIGNATURE, "CA signature"},
1115 {CERT_PKEY_EE_PARAM, "EE key parameters"},
1116 {CERT_PKEY_CA_PARAM, "CA key parameters"},
1117 {CERT_PKEY_EXPLICIT_SIGN, "Explicity sign with EE key"},
1118 {CERT_PKEY_ISSUER_NAME, "Issuer Name"},
1119 {CERT_PKEY_CERT_TYPE, "Certificate Type"},
1123 static void print_chain_flags(BIO *out, SSL *s, int flags)
1125 struct chain_flags *ctmp = chain_flags_list;
1126 while (ctmp->name) {
1127 BIO_printf(out, "\t%s: %s\n", ctmp->name,
1128 flags & ctmp->flag ? "OK" : "NOT OK");
1131 BIO_printf(out, "\tSuite B: ");
1132 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
1133 BIO_puts(out, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
1135 BIO_printf(out, "not tested\n");
1139 * Very basic selection callback: just use any certificate chain reported as
1140 * valid. More sophisticated could prioritise according to local policy.
1142 static int set_cert_cb(SSL *ssl, void *arg)
1145 SSL_EXCERT *exc = arg;
1146 #ifdef CERT_CB_TEST_RETRY
1147 static int retry_cnt;
1148 if (retry_cnt < 5) {
1150 fprintf(stderr, "Certificate callback retry test: count %d\n",
1155 SSL_certs_clear(ssl);
1161 * Go to end of list and traverse backwards since we prepend newer
1162 * entries this retains the original order.
1171 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
1172 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
1173 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
1175 BIO_puts(bio_err, "\n");
1177 print_chain_flags(bio_err, ssl, rv);
1178 if (rv & CERT_PKEY_VALID) {
1179 SSL_use_certificate(ssl, exc->cert);
1180 SSL_use_PrivateKey(ssl, exc->key);
1182 * NB: we wouldn't normally do this as it is not efficient
1183 * building chains on each connection better to cache the chain
1186 if (exc->build_chain) {
1187 if (!SSL_build_cert_chain(ssl, 0))
1189 } else if (exc->chain)
1190 SSL_set1_chain(ssl, exc->chain);
1197 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
1199 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
1202 static int ssl_excert_prepend(SSL_EXCERT **pexc)
1205 exc = OPENSSL_malloc(sizeof(SSL_EXCERT));
1208 exc->certfile = NULL;
1209 exc->keyfile = NULL;
1210 exc->chainfile = NULL;
1215 exc->build_chain = 0;
1221 exc->certform = exc->next->certform;
1222 exc->keyform = exc->next->keyform;
1223 exc->next->prev = exc;
1225 exc->certform = FORMAT_PEM;
1226 exc->keyform = FORMAT_PEM;
1232 void ssl_excert_free(SSL_EXCERT *exc)
1237 X509_free(exc->cert);
1239 EVP_PKEY_free(exc->key);
1241 sk_X509_pop_free(exc->chain, X509_free);
1248 int load_excert(SSL_EXCERT **pexc, BIO *err)
1250 SSL_EXCERT *exc = *pexc;
1253 /* If nothing in list, free and set to NULL */
1254 if (!exc->certfile && !exc->next) {
1255 ssl_excert_free(exc);
1259 for (; exc; exc = exc->next) {
1260 if (!exc->certfile) {
1261 BIO_printf(err, "Missing filename\n");
1264 exc->cert = load_cert(err, exc->certfile, exc->certform,
1265 NULL, NULL, "Server Certificate");
1269 exc->key = load_key(err, exc->keyfile, exc->keyform,
1270 0, NULL, NULL, "Server Key");
1272 exc->key = load_key(err, exc->certfile, exc->certform,
1273 0, NULL, NULL, "Server Key");
1277 if (exc->chainfile) {
1278 exc->chain = load_certs(err,
1279 exc->chainfile, FORMAT_PEM,
1280 NULL, NULL, "Server Chain");
1288 int args_excert(char ***pargs, int *pargc,
1289 int *badarg, BIO *err, SSL_EXCERT **pexc)
1291 char *arg = **pargs, *argn = (*pargs)[1];
1292 SSL_EXCERT *exc = *pexc;
1295 if (ssl_excert_prepend(&exc))
1298 BIO_printf(err, "Error initialising xcert\n");
1303 if (strcmp(arg, "-xcert") == 0) {
1308 if (exc->certfile && !ssl_excert_prepend(&exc)) {
1309 BIO_printf(err, "Error adding xcert\n");
1313 exc->certfile = argn;
1314 } else if (strcmp(arg, "-xkey") == 0) {
1320 BIO_printf(err, "Key already specified\n");
1324 exc->keyfile = argn;
1325 } else if (strcmp(arg, "-xchain") == 0) {
1330 if (exc->chainfile) {
1331 BIO_printf(err, "Chain already specified\n");
1335 exc->chainfile = argn;
1336 } else if (strcmp(arg, "-xchain_build") == 0) {
1338 exc->build_chain = 1;
1339 } else if (strcmp(arg, "-xcertform") == 0) {
1344 exc->certform = str2fmt(argn);
1345 } else if (strcmp(arg, "-xkeyform") == 0) {
1350 exc->keyform = str2fmt(argn);
1364 ERR_print_errors(err);
1365 ssl_excert_free(exc);
1370 static void print_raw_cipherlist(BIO *bio, SSL *s)
1372 const unsigned char *rlist;
1373 static const unsigned char scsv_id[] = { 0, 0, 0xFF };
1374 size_t i, rlistlen, num;
1375 if (!SSL_is_server(s))
1377 num = SSL_get0_raw_cipherlist(s, NULL);
1378 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
1379 BIO_puts(bio, "Client cipher list: ");
1380 for (i = 0; i < rlistlen; i += num, rlist += num) {
1381 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
1385 BIO_puts(bio, SSL_CIPHER_get_name(c));
1386 else if (!memcmp(rlist, scsv_id - num + 3, num))
1387 BIO_puts(bio, "SCSV");
1390 BIO_puts(bio, "0x");
1391 for (j = 0; j < num; j++)
1392 BIO_printf(bio, "%02X", rlist[j]);
1395 BIO_puts(bio, "\n");
1398 void print_ssl_summary(BIO *bio, SSL *s)
1400 const SSL_CIPHER *c;
1403 * const char *pnam = SSL_is_server(s) ? "client" : "server";
1405 BIO_printf(bio, "Protocol version: %s\n", SSL_get_version(s));
1406 print_raw_cipherlist(bio, s);
1407 c = SSL_get_current_cipher(s);
1408 BIO_printf(bio, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1409 do_print_sigalgs(bio, s, 0);
1410 peer = SSL_get_peer_certificate(s);
1413 BIO_puts(bio, "Peer certificate: ");
1414 X509_NAME_print_ex(bio, X509_get_subject_name(peer),
1415 0, XN_FLAG_ONELINE);
1416 BIO_puts(bio, "\n");
1417 if (SSL_get_peer_signature_nid(s, &nid))
1418 BIO_printf(bio, "Hash used: %s\n", OBJ_nid2sn(nid));
1420 BIO_puts(bio, "No peer certificate\n");
1423 #ifndef OPENSSL_NO_EC
1424 ssl_print_point_formats(bio, s);
1425 if (SSL_is_server(s))
1426 ssl_print_curves(bio, s, 1);
1428 ssl_print_tmp_key(bio, s);
1430 if (!SSL_is_server(s))
1431 ssl_print_tmp_key(bio, s);
1435 int args_ssl(char ***pargs, int *pargc, SSL_CONF_CTX *cctx,
1436 int *badarg, BIO *err, STACK_OF(OPENSSL_STRING) **pstr)
1438 char *arg = **pargs, *argn = (*pargs)[1];
1441 /* Attempt to run SSL configuration command */
1442 rv = SSL_CONF_cmd_argv(cctx, pargc, pargs);
1443 /* If parameter not recognised just return */
1446 /* see if missing argument error */
1448 BIO_printf(err, "%s needs an argument\n", arg);
1452 /* Check for some other error */
1454 BIO_printf(err, "Error with command: \"%s %s\"\n",
1455 arg, argn ? argn : "");
1459 /* Store command and argument */
1460 /* If only one argument processed store value as NULL */
1464 *pstr = sk_OPENSSL_STRING_new_null();
1465 if (!*pstr || !sk_OPENSSL_STRING_push(*pstr, arg) ||
1466 !sk_OPENSSL_STRING_push(*pstr, argn)) {
1467 BIO_puts(err, "Memory allocation failure\n");
1473 ERR_print_errors(err);
1478 int args_ssl_call(SSL_CTX *ctx, BIO *err, SSL_CONF_CTX *cctx,
1479 STACK_OF(OPENSSL_STRING) *str, int no_ecdhe, int no_jpake)
1482 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1483 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1484 const char *param = sk_OPENSSL_STRING_value(str, i);
1485 const char *value = sk_OPENSSL_STRING_value(str, i + 1);
1487 * If no_ecdhe or named curve already specified don't need a default.
1489 if (!no_ecdhe && !strcmp(param, "-named_curve"))
1491 #ifndef OPENSSL_NO_JPAKE
1492 if (!no_jpake && !strcmp(param, "-cipher")) {
1493 BIO_puts(err, "JPAKE sets cipher to PSK\n");
1497 if (SSL_CONF_cmd(cctx, param, value) <= 0) {
1498 BIO_printf(err, "Error with command: \"%s %s\"\n",
1499 param, value ? value : "");
1500 ERR_print_errors(err);
1505 * This is a special case to keep existing s_server functionality: if we
1506 * don't have any curve specified *and* we haven't disabled ECDHE then
1510 if (SSL_CONF_cmd(cctx, "-named_curve", "P-256") <= 0) {
1511 BIO_puts(err, "Error setting EC curve\n");
1512 ERR_print_errors(err);
1516 #ifndef OPENSSL_NO_JPAKE
1518 if (SSL_CONF_cmd(cctx, "-cipher", "PSK") <= 0) {
1519 BIO_puts(err, "Error setting cipher to PSK\n");
1520 ERR_print_errors(err);
1525 if (!SSL_CONF_CTX_finish(cctx)) {
1526 BIO_puts(err, "Error finishing context\n");
1527 ERR_print_errors(err);
1533 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1537 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1538 crl = sk_X509_CRL_value(crls, i);
1539 X509_STORE_add_crl(st, crl);
1544 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1547 st = SSL_CTX_get_cert_store(ctx);
1548 add_crls_store(st, crls);
1550 store_setup_crl_download(st);
1554 int ssl_load_stores(SSL_CTX *ctx,
1555 const char *vfyCApath, const char *vfyCAfile,
1556 const char *chCApath, const char *chCAfile,
1557 STACK_OF(X509_CRL) *crls, int crl_download)
1559 X509_STORE *vfy = NULL, *ch = NULL;
1561 if (vfyCApath || vfyCAfile) {
1562 vfy = X509_STORE_new();
1563 if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
1565 add_crls_store(vfy, crls);
1566 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1568 store_setup_crl_download(vfy);
1570 if (chCApath || chCAfile) {
1571 ch = X509_STORE_new();
1572 if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
1574 SSL_CTX_set1_chain_cert_store(ctx, ch);
1579 X509_STORE_free(vfy);
1581 X509_STORE_free(ch);
1585 /* Verbose print out of security callback */
1590 int (*old_cb) (SSL *s, SSL_CTX *ctx, int op, int bits, int nid,
1591 void *other, void *ex);
1592 } security_debug_ex;
1594 static int security_callback_debug(SSL *s, SSL_CTX *ctx,
1595 int op, int bits, int nid,
1596 void *other, void *ex)
1598 security_debug_ex *sdb = ex;
1599 int rv, show_bits = 1, cert_md = 0;
1601 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1602 if (rv == 1 && sdb->verbose < 2)
1604 BIO_puts(sdb->out, "Security callback: ");
1607 case SSL_SECOP_CIPHER_SUPPORTED:
1608 nm = "Supported Ciphersuite";
1610 case SSL_SECOP_CIPHER_SHARED:
1611 nm = "Shared Ciphersuite";
1613 case SSL_SECOP_CIPHER_CHECK:
1614 nm = "Check Ciphersuite";
1616 case SSL_SECOP_TICKET:
1617 BIO_puts(sdb->out, "Session ticket");
1621 case SSL_SECOP_COMPRESSION:
1622 BIO_puts(sdb->out, "SSL compression");
1626 #ifndef OPENSSL_NO_DH
1627 case SSL_SECOP_TMP_DH:
1628 nm = "Temp DH key bits";
1631 case SSL_SECOP_CURVE_SUPPORTED:
1632 nm = "Supported Curve";
1634 case SSL_SECOP_CURVE_SHARED:
1635 nm = "Shared Curve";
1637 case SSL_SECOP_CURVE_CHECK:
1640 case SSL_SECOP_VERSION:
1641 BIO_printf(sdb->out, "Version=%s", ssl_version_str(nid));
1645 case SSL_SECOP_SIGALG_SUPPORTED:
1646 nm = "Supported Signature Algorithm digest";
1648 case SSL_SECOP_SIGALG_SHARED:
1649 nm = "Shared Signature Algorithm digest";
1651 case SSL_SECOP_SIGALG_CHECK:
1652 nm = "Check Signature Algorithm digest";
1654 case SSL_SECOP_SIGALG_MASK:
1655 nm = "Signature Algorithm mask";
1657 case SSL_SECOP_EE_KEY:
1658 nm = "Certificate chain EE key";
1660 case SSL_SECOP_CA_KEY:
1661 nm = "Certificate chain CA key";
1663 case SSL_SECOP_CA_MD:
1665 nm = "Certificate chain CA digest";
1667 case SSL_SECOP_PEER_EE_KEY:
1668 nm = "Peer Chain EE key";
1670 case SSL_SECOP_PEER_CA_KEY:
1671 nm = "Peer Chain CA key";
1673 case SSL_SECOP_PEER_CA_MD:
1675 nm = "Peer chain CA digest";
1681 BIO_printf(sdb->out, "%s=", nm);
1683 switch (op & SSL_SECOP_OTHER_TYPE) {
1685 case SSL_SECOP_OTHER_CIPHER:
1686 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1689 #ifndef OPENSSL_NO_EC
1690 case SSL_SECOP_OTHER_CURVE:
1693 cname = EC_curve_nid2nist(nid);
1695 cname = OBJ_nid2sn(nid);
1696 BIO_puts(sdb->out, cname);
1701 case SSL_SECOP_OTHER_DH:
1704 BIO_printf(sdb->out, "%d", BN_num_bits(dh->p));
1707 case SSL_SECOP_OTHER_CERT:
1710 int sig_nid = X509_get_signature_nid(other);
1711 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1713 EVP_PKEY *pkey = X509_get_pubkey(other);
1714 const char *algname = "";
1715 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1716 &algname, EVP_PKEY_get0_asn1(pkey));
1717 BIO_printf(sdb->out, "%s, bits=%d",
1718 algname, EVP_PKEY_bits(pkey));
1719 EVP_PKEY_free(pkey);
1723 case SSL_SECOP_OTHER_SIGALG:
1725 const unsigned char *salg = other;
1726 const char *sname = NULL;
1728 case TLSEXT_signature_anonymous:
1729 sname = "anonymous";
1731 case TLSEXT_signature_rsa:
1734 case TLSEXT_signature_dsa:
1737 case TLSEXT_signature_ecdsa:
1742 BIO_puts(sdb->out, OBJ_nid2sn(nid));
1744 BIO_printf(sdb->out, ", algorithm=%s", sname);
1746 BIO_printf(sdb->out, ", algid=%d", salg[1]);
1753 BIO_printf(sdb->out, ", security bits=%d", bits);
1754 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1758 void ssl_ctx_security_debug(SSL_CTX *ctx, BIO *out, int verbose)
1760 static security_debug_ex sdb;
1762 sdb.verbose = verbose;
1763 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1764 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1765 SSL_CTX_set0_security_ex_data(ctx, &sdb);