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
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 MS_CALLBACK 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)
149 BIO_printf(bio_err,"depth=%d ",depth);
152 X509_NAME_print_ex(bio_err,
153 X509_get_subject_name(err_cert),
155 BIO_puts(bio_err, "\n");
158 BIO_puts(bio_err, "<no cert>\n");
162 BIO_printf(bio_err,"verify error:num=%d:%s\n",err,
163 X509_verify_cert_error_string(err));
164 if (verify_depth >= depth)
166 if (!verify_return_error)
168 verify_error=X509_V_OK;
173 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:
198 policies_print(bio_err, ctx);
201 if (err == X509_V_OK && ok == 2 && !verify_quiet)
202 policies_print(bio_err, ctx);
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)
217 if (SSL_CTX_use_certificate_file(ctx,cert_file,
218 SSL_FILETYPE_PEM) <= 0)
220 BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file);
221 ERR_print_errors(bio_err);
224 if (key_file == NULL) key_file=cert_file;
225 if (SSL_CTX_use_PrivateKey_file(ctx,key_file,
226 SSL_FILETYPE_PEM) <= 0)
228 BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file);
229 ERR_print_errors(bio_err);
234 In theory this is no longer needed
236 x509=SSL_get_certificate(ssl);
240 pktmp = X509_get_pubkey(x509);
241 EVP_PKEY_copy_parameters(pktmp,
242 SSL_get_privatekey(ssl));
243 EVP_PKEY_free(pktmp);
248 /* If we are using DSA, we can copy the parameters from
252 /* Now we know that a key and cert have been set against
254 if (!SSL_CTX_check_private_key(ctx))
256 BIO_printf(bio_err,"Private key does not match the certificate public key\n");
263 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
264 STACK_OF(X509) *chain, int build_chain)
266 int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
269 if (SSL_CTX_use_certificate(ctx,cert) <= 0)
271 BIO_printf(bio_err,"error setting certificate\n");
272 ERR_print_errors(bio_err);
276 if (SSL_CTX_use_PrivateKey(ctx,key) <= 0)
278 BIO_printf(bio_err,"error setting private key\n");
279 ERR_print_errors(bio_err);
283 /* Now we know that a key and cert have been set against
285 if (!SSL_CTX_check_private_key(ctx))
287 BIO_printf(bio_err,"Private key does not match the certificate public key\n");
290 if (chain && !SSL_CTX_set1_chain(ctx, chain))
292 BIO_printf(bio_err,"error setting certificate chain\n");
293 ERR_print_errors(bio_err);
296 if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags))
298 BIO_printf(bio_err,"error building certificate chain\n");
299 ERR_print_errors(bio_err);
305 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
307 const unsigned char *p;
309 int cert_type_num = SSL_get0_certificate_types(s, &p);
312 BIO_puts(bio, "Client Certificate Types: ");
313 for (i = 0; i < cert_type_num; i++)
315 unsigned char cert_type = p[i];
319 case TLS_CT_RSA_SIGN:
323 case TLS_CT_DSS_SIGN:
327 case TLS_CT_RSA_FIXED_DH:
328 cname = "RSA fixed DH";
331 case TLS_CT_DSS_FIXED_DH:
332 cname = "DSS fixed DH";
335 case TLS_CT_ECDSA_SIGN:
336 cname = "ECDSA sign";
339 case TLS_CT_RSA_FIXED_ECDH:
340 cname = "RSA fixed ECDH";
343 case TLS_CT_ECDSA_FIXED_ECDH:
344 cname = "ECDSA fixed ECDH";
347 case TLS_CT_GOST94_SIGN:
348 cname = "GOST94 Sign";
351 case TLS_CT_GOST01_SIGN:
352 cname = "GOST01 Sign";
363 BIO_puts(bio, cname);
365 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
370 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
373 client = SSL_is_server(s) ? 0 : 1;
375 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL,
378 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
383 BIO_puts(out, "Shared ");
386 BIO_puts(out, "Requested ");
387 BIO_puts(out, "Signature Algorithms: ");
388 for (i = 0; i < nsig; i++)
390 int hash_nid, sign_nid;
391 unsigned char rhash, rsign;
392 const char *sstr = NULL;
394 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
397 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
401 if (sign_nid == EVP_PKEY_RSA)
403 else if(sign_nid == EVP_PKEY_DSA)
405 else if(sign_nid == EVP_PKEY_EC)
408 BIO_printf(out,"%s+", sstr);
410 BIO_printf(out,"0x%02X+", (int)rsign);
411 if (hash_nid != NID_undef)
412 BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
414 BIO_printf(out,"0x%02X", (int)rhash);
420 int ssl_print_sigalgs(BIO *out, SSL *s)
423 if (!SSL_is_server(s))
424 ssl_print_client_cert_types(out, s);
425 do_print_sigalgs(out, s, 0);
426 do_print_sigalgs(out, s, 1);
427 if (SSL_get_peer_signature_nid(s, &mdnid))
428 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
431 #ifndef OPENSSL_NO_EC
432 int ssl_print_point_formats(BIO *out, SSL *s)
435 const char *pformats;
436 nformats = SSL_get0_ec_point_formats(s, &pformats);
439 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
440 for (i = 0; i < nformats; i++, pformats++)
446 case TLSEXT_ECPOINTFORMAT_uncompressed:
447 BIO_puts(out, "uncompressed");
450 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
451 BIO_puts(out, "ansiX962_compressed_prime");
454 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
455 BIO_puts(out, "ansiX962_compressed_char2");
459 BIO_printf(out, "unknown(%d)", (int)*pformats);
465 BIO_puts(out, "NONE");
470 int ssl_print_curves(BIO *out, SSL *s, int noshared)
472 int i, ncurves, *curves, nid;
474 ncurves = SSL_get1_curves(s, NULL);
477 curves = OPENSSL_malloc(ncurves * sizeof(int));
478 SSL_get1_curves(s, curves);
480 BIO_puts(out, "Supported Elliptic Curves: ");
481 for (i = 0; i < ncurves; i++)
486 /* If unrecognised print out hex version */
487 if (nid & TLSEXT_nid_unknown)
488 BIO_printf(out, "0x%04X", nid & 0xFFFF);
491 /* Use NIST name for curve if it exists */
492 cname = EC_curve_nid2nist(nid);
494 cname = OBJ_nid2sn(nid);
495 BIO_printf(out, "%s", cname);
499 BIO_puts(out, "NONE");
500 OPENSSL_free(curves);
506 BIO_puts(out, "\nShared Elliptic curves: ");
507 ncurves = SSL_get_shared_curve(s, -1);
508 for (i = 0; i < ncurves; i++)
512 nid = SSL_get_shared_curve(s, i);
513 cname = EC_curve_nid2nist(nid);
515 cname = OBJ_nid2sn(nid);
516 BIO_printf(out, "%s", cname);
519 BIO_puts(out, "NONE");
524 int ssl_print_tmp_key(BIO *out, SSL *s)
527 if (!SSL_get_server_tmp_key(s, &key))
529 BIO_puts(out, "Server Temp Key: ");
530 switch (EVP_PKEY_id(key))
533 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
537 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
539 #ifndef OPENSSL_NO_ECDH
542 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
545 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
547 cname = EC_curve_nid2nist(nid);
549 cname = OBJ_nid2sn(nid);
550 BIO_printf(out, "ECDH, %s, %d bits\n",
551 cname, EVP_PKEY_bits(key));
560 long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
561 int argi, long argl, long ret)
565 out=(BIO *)BIO_get_callback_arg(bio);
566 if (out == NULL) return(ret);
568 if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
570 BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
571 (void *)bio,argp,(unsigned long)argi,ret,ret);
572 BIO_dump(out,argp,(int)ret);
575 else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
577 BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
578 (void *)bio,argp,(unsigned long)argi,ret,ret);
579 BIO_dump(out,argp,(int)ret);
584 void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
589 w=where& ~SSL_ST_MASK;
591 if (w & SSL_ST_CONNECT) str="SSL_connect";
592 else if (w & SSL_ST_ACCEPT) str="SSL_accept";
593 else str="undefined";
595 if (where & SSL_CB_LOOP)
597 BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
599 else if (where & SSL_CB_ALERT)
601 str=(where & SSL_CB_READ)?"read":"write";
602 BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
604 SSL_alert_type_string_long(ret),
605 SSL_alert_desc_string_long(ret));
607 else if (where & SSL_CB_EXIT)
610 BIO_printf(bio_err,"%s:failed in %s\n",
611 str,SSL_state_string_long(s));
614 BIO_printf(bio_err,"%s:error in %s\n",
615 str,SSL_state_string_long(s));
620 static const char *ssl_version_str(int version)
635 return "DTLS 1.0 (bad)";
641 void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
644 const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
646 str_write_p = write_p ? ">>>" : "<<<";
648 str_version = ssl_version_str(version);
650 if (version == SSL3_VERSION ||
651 version == TLS1_VERSION ||
652 version == TLS1_1_VERSION ||
653 version == TLS1_2_VERSION ||
654 version == DTLS1_VERSION ||
655 version == DTLS1_BAD_VER)
657 switch (content_type)
660 str_content_type = "ChangeCipherSpec";
663 str_content_type = "Alert";
666 str_content_type = "Handshake";
670 if (content_type == 21) /* Alert */
672 str_details1 = ", ???";
676 switch (((const unsigned char*)buf)[0])
679 str_details1 = ", warning";
682 str_details1 = ", fatal";
686 str_details2 = " ???";
687 switch (((const unsigned char*)buf)[1])
690 str_details2 = " close_notify";
693 str_details2 = " unexpected_message";
696 str_details2 = " bad_record_mac";
699 str_details2 = " decryption_failed";
702 str_details2 = " record_overflow";
705 str_details2 = " decompression_failure";
708 str_details2 = " handshake_failure";
711 str_details2 = " bad_certificate";
714 str_details2 = " unsupported_certificate";
717 str_details2 = " certificate_revoked";
720 str_details2 = " certificate_expired";
723 str_details2 = " certificate_unknown";
726 str_details2 = " illegal_parameter";
729 str_details2 = " unknown_ca";
732 str_details2 = " access_denied";
735 str_details2 = " decode_error";
738 str_details2 = " decrypt_error";
741 str_details2 = " export_restriction";
744 str_details2 = " protocol_version";
747 str_details2 = " insufficient_security";
750 str_details2 = " internal_error";
753 str_details2 = " user_canceled";
756 str_details2 = " no_renegotiation";
759 str_details2 = " unsupported_extension";
762 str_details2 = " certificate_unobtainable";
765 str_details2 = " unrecognized_name";
768 str_details2 = " bad_certificate_status_response";
771 str_details2 = " bad_certificate_hash_value";
774 str_details2 = " unknown_psk_identity";
780 if (content_type == 22) /* Handshake */
782 str_details1 = "???";
786 switch (((const unsigned char*)buf)[0])
789 str_details1 = ", HelloRequest";
792 str_details1 = ", ClientHello";
795 str_details1 = ", ServerHello";
798 str_details1 = ", HelloVerifyRequest";
801 str_details1 = ", Certificate";
804 str_details1 = ", ServerKeyExchange";
807 str_details1 = ", CertificateRequest";
810 str_details1 = ", ServerHelloDone";
813 str_details1 = ", CertificateVerify";
816 str_details1 = ", ClientKeyExchange";
819 str_details1 = ", Finished";
825 #ifndef OPENSSL_NO_HEARTBEATS
826 if (content_type == 24) /* Heartbeat */
828 str_details1 = ", Heartbeat";
832 switch (((const unsigned char*)buf)[0])
835 str_details1 = ", HeartbeatRequest";
838 str_details1 = ", HeartbeatResponse";
846 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version, str_content_type, (unsigned long)len, str_details1, str_details2);
852 BIO_printf(bio, " ");
858 for (i = 0; i < num; i++)
860 if (i % 16 == 0 && i > 0)
861 BIO_printf(bio, "\n ");
862 BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
865 BIO_printf(bio, " ...");
866 BIO_printf(bio, "\n");
868 (void)BIO_flush(bio);
871 void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
872 unsigned char *data, int len,
880 case TLSEXT_TYPE_server_name:
881 extname = "server name";
884 case TLSEXT_TYPE_max_fragment_length:
885 extname = "max fragment length";
888 case TLSEXT_TYPE_client_certificate_url:
889 extname = "client certificate URL";
892 case TLSEXT_TYPE_trusted_ca_keys:
893 extname = "trusted CA keys";
896 case TLSEXT_TYPE_truncated_hmac:
897 extname = "truncated HMAC";
900 case TLSEXT_TYPE_status_request:
901 extname = "status request";
904 case TLSEXT_TYPE_user_mapping:
905 extname = "user mapping";
908 case TLSEXT_TYPE_client_authz:
909 extname = "client authz";
912 case TLSEXT_TYPE_server_authz:
913 extname = "server authz";
916 case TLSEXT_TYPE_cert_type:
917 extname = "cert type";
920 case TLSEXT_TYPE_elliptic_curves:
921 extname = "elliptic curves";
924 case TLSEXT_TYPE_ec_point_formats:
925 extname = "EC point formats";
928 case TLSEXT_TYPE_srp:
932 case TLSEXT_TYPE_signature_algorithms:
933 extname = "signature algorithms";
936 case TLSEXT_TYPE_use_srtp:
937 extname = "use SRTP";
940 case TLSEXT_TYPE_heartbeat:
941 extname = "heartbeat";
944 case TLSEXT_TYPE_session_ticket:
945 extname = "session ticket";
948 case TLSEXT_TYPE_renegotiate:
949 extname = "renegotiation info";
952 #ifdef TLSEXT_TYPE_opaque_prf_input
953 case TLSEXT_TYPE_opaque_prf_input:
954 extname = "opaque PRF input";
957 #ifdef TLSEXT_TYPE_next_proto_neg
958 case TLSEXT_TYPE_next_proto_neg:
959 extname = "next protocol";
962 #ifdef TLSEXT_TYPE_encrypt_then_mac
963 case TLSEXT_TYPE_encrypt_then_mac:
964 extname = "encrypt-then-mac";
967 case TLSEXT_TYPE_padding:
968 extname = "TLS padding";
977 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
978 client_server ? "server": "client",
980 BIO_dump(bio, (char *)data, len);
981 (void)BIO_flush(bio);
984 int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
986 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
987 unsigned int length, resultlength;
990 struct sockaddr_in s4;
992 struct sockaddr_in6 s6;
996 /* Initialize a random secret */
997 if (!cookie_initialized)
999 if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
1001 BIO_printf(bio_err,"error setting random cookie secret\n");
1004 cookie_initialized = 1;
1007 /* Read peer information */
1008 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1010 /* Create buffer with peer's address and port */
1012 switch (peer.sa.sa_family)
1015 length += sizeof(struct in_addr);
1016 length += sizeof(peer.s4.sin_port);
1018 #if OPENSSL_USE_IPV6
1020 length += sizeof(struct in6_addr);
1021 length += sizeof(peer.s6.sin6_port);
1028 buffer = OPENSSL_malloc(length);
1032 BIO_printf(bio_err,"out of memory\n");
1036 switch (peer.sa.sa_family)
1041 sizeof(peer.s4.sin_port));
1042 memcpy(buffer + sizeof(peer.s4.sin_port),
1044 sizeof(struct in_addr));
1046 #if OPENSSL_USE_IPV6
1050 sizeof(peer.s6.sin6_port));
1051 memcpy(buffer + sizeof(peer.s6.sin6_port),
1053 sizeof(struct in6_addr));
1061 /* Calculate HMAC of buffer using the secret */
1062 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1063 buffer, length, result, &resultlength);
1064 OPENSSL_free(buffer);
1066 memcpy(cookie, result, resultlength);
1067 *cookie_len = resultlength;
1072 int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
1074 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
1075 unsigned int length, resultlength;
1078 struct sockaddr_in s4;
1079 #if OPENSSL_USE_IPV6
1080 struct sockaddr_in6 s6;
1084 /* If secret isn't initialized yet, the cookie can't be valid */
1085 if (!cookie_initialized)
1088 /* Read peer information */
1089 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1091 /* Create buffer with peer's address and port */
1093 switch (peer.sa.sa_family)
1096 length += sizeof(struct in_addr);
1097 length += sizeof(peer.s4.sin_port);
1099 #if OPENSSL_USE_IPV6
1101 length += sizeof(struct in6_addr);
1102 length += sizeof(peer.s6.sin6_port);
1109 buffer = OPENSSL_malloc(length);
1113 BIO_printf(bio_err,"out of memory\n");
1117 switch (peer.sa.sa_family)
1122 sizeof(peer.s4.sin_port));
1123 memcpy(buffer + sizeof(peer.s4.sin_port),
1125 sizeof(struct in_addr));
1127 #if OPENSSL_USE_IPV6
1131 sizeof(peer.s6.sin6_port));
1132 memcpy(buffer + sizeof(peer.s6.sin6_port),
1134 sizeof(struct in6_addr));
1142 /* Calculate HMAC of buffer using the secret */
1143 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1144 buffer, length, result, &resultlength);
1145 OPENSSL_free(buffer);
1147 if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)
1153 /* Example of extended certificate handling. Where the standard support
1154 * of one certificate per algorithm is not sufficient an application
1155 * can decide which certificate(s) to use at runtime based on whatever
1156 * criteria it deems appropriate.
1159 /* Linked list of certificates, keys and chains */
1160 struct ssl_excert_st
1163 const char *certfile;
1165 const char *keyfile;
1166 const char *chainfile;
1169 STACK_OF(X509) *chain;
1171 struct ssl_excert_st *next, *prev;
1180 struct chain_flags chain_flags_list[] =
1182 {CERT_PKEY_VALID, "Overall Validity"},
1183 {CERT_PKEY_SIGN, "Sign with EE key"},
1184 {CERT_PKEY_EE_SIGNATURE, "EE signature"},
1185 {CERT_PKEY_CA_SIGNATURE, "CA signature"},
1186 {CERT_PKEY_EE_PARAM, "EE key parameters"},
1187 {CERT_PKEY_CA_PARAM, "CA key parameters"},
1188 {CERT_PKEY_EXPLICIT_SIGN, "Explicity sign with EE key"},
1189 {CERT_PKEY_ISSUER_NAME, "Issuer Name"},
1190 {CERT_PKEY_CERT_TYPE, "Certificate Type"},
1195 static void print_chain_flags(BIO *out, SSL *s, int flags)
1197 struct chain_flags *ctmp = chain_flags_list;
1200 BIO_printf(out, "\t%s: %s\n", ctmp->name,
1201 flags & ctmp->flag ? "OK" : "NOT OK");
1204 BIO_printf(out, "\tSuite B: ");
1205 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
1206 BIO_puts(out, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
1208 BIO_printf(out, "not tested\n");
1211 /* Very basic selection callback: just use any certificate chain
1212 * reported as valid. More sophisticated could prioritise according
1215 static int set_cert_cb(SSL *ssl, void *arg)
1218 SSL_EXCERT *exc = arg;
1219 #ifdef CERT_CB_TEST_RETRY
1220 static int retry_cnt;
1224 fprintf(stderr, "Certificate callback retry test: count %d\n",
1229 SSL_certs_clear(ssl);
1234 /* Go to end of list and traverse backwards since we prepend
1235 * newer entries this retains the original order.
1245 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
1246 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
1247 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
1249 BIO_puts(bio_err, "\n");
1251 print_chain_flags(bio_err, ssl, rv);
1252 if (rv & CERT_PKEY_VALID)
1254 SSL_use_certificate(ssl, exc->cert);
1255 SSL_use_PrivateKey(ssl, exc->key);
1256 /* NB: we wouldn't normally do this as it is
1257 * not efficient building chains on each connection
1258 * better to cache the chain in advance.
1260 if (exc->build_chain)
1262 if (!SSL_build_cert_chain(ssl, 0))
1265 else if (exc->chain)
1266 SSL_set1_chain(ssl, exc->chain);
1273 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
1275 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
1278 static int ssl_excert_prepend(SSL_EXCERT **pexc)
1281 exc = OPENSSL_malloc(sizeof(SSL_EXCERT));
1284 exc->certfile = NULL;
1285 exc->keyfile = NULL;
1286 exc->chainfile = NULL;
1291 exc->build_chain = 0;
1298 exc->certform = exc->next->certform;
1299 exc->keyform = exc->next->keyform;
1300 exc->next->prev = exc;
1304 exc->certform = FORMAT_PEM;
1305 exc->keyform = FORMAT_PEM;
1311 void ssl_excert_free(SSL_EXCERT *exc)
1317 X509_free(exc->cert);
1319 EVP_PKEY_free(exc->key);
1321 sk_X509_pop_free(exc->chain, X509_free);
1328 int load_excert(SSL_EXCERT **pexc, BIO *err)
1330 SSL_EXCERT *exc = *pexc;
1333 /* If nothing in list, free and set to NULL */
1334 if (!exc->certfile && !exc->next)
1336 ssl_excert_free(exc);
1340 for(; exc; exc=exc->next)
1344 BIO_printf(err, "Missing filename\n");
1347 exc->cert = load_cert(err, exc->certfile, exc->certform,
1348 NULL, NULL, "Server Certificate");
1353 exc->key = load_key(err, exc->keyfile, exc->keyform,
1354 0, NULL, NULL, "Server Key");
1358 exc->key = load_key(err, exc->certfile, exc->certform,
1359 0, NULL, NULL, "Server Key");
1365 exc->chain = load_certs(err,
1366 exc->chainfile, FORMAT_PEM,
1377 int args_excert(char ***pargs, int *pargc,
1378 int *badarg, BIO *err, SSL_EXCERT **pexc)
1380 char *arg = **pargs, *argn = (*pargs)[1];
1381 SSL_EXCERT *exc = *pexc;
1385 if (ssl_excert_prepend(&exc))
1389 BIO_printf(err, "Error initialising xcert\n");
1394 if (strcmp(arg, "-xcert") == 0)
1401 if (exc->certfile && !ssl_excert_prepend(&exc))
1403 BIO_printf(err, "Error adding xcert\n");
1407 exc->certfile = argn;
1409 else if (strcmp(arg,"-xkey") == 0)
1418 BIO_printf(err, "Key already specified\n");
1422 exc->keyfile = argn;
1424 else if (strcmp(arg,"-xchain") == 0)
1433 BIO_printf(err, "Chain already specified\n");
1437 exc->chainfile = argn;
1439 else if (strcmp(arg,"-xchain_build") == 0)
1442 exc->build_chain = 1;
1444 else if (strcmp(arg,"-xcertform") == 0)
1451 exc->certform = str2fmt(argn);
1453 else if (strcmp(arg,"-xkeyform") == 0)
1460 exc->keyform = str2fmt(argn);
1475 ERR_print_errors(err);
1476 ssl_excert_free(exc);
1481 static void print_raw_cipherlist(BIO *bio, SSL *s)
1483 const unsigned char *rlist;
1484 static const unsigned char scsv_id[] = {0, 0, 0xFF};
1485 size_t i, rlistlen, num;
1486 if (!SSL_is_server(s))
1488 num = SSL_get0_raw_cipherlist(s, NULL);
1489 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
1490 BIO_puts(bio, "Client cipher list: ");
1491 for (i = 0; i < rlistlen; i += num, rlist += num)
1493 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
1497 BIO_puts(bio, SSL_CIPHER_get_name(c));
1498 else if (!memcmp(rlist, scsv_id - num + 3, num))
1499 BIO_puts(bio, "SCSV");
1503 BIO_puts(bio, "0x");
1504 for (j = 0; j < num; j++)
1505 BIO_printf(bio, "%02X", rlist[j]);
1508 BIO_puts(bio, "\n");
1512 void print_ssl_summary(BIO *bio, SSL *s)
1514 const SSL_CIPHER *c;
1516 /*const char *pnam = SSL_is_server(s) ? "client" : "server";*/
1517 BIO_printf(bio, "Protocol version: %s\n", SSL_get_version(s));
1518 print_raw_cipherlist(bio, s);
1519 c = SSL_get_current_cipher(s);
1520 BIO_printf(bio,"Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1521 do_print_sigalgs(bio, s, 0);
1522 peer = SSL_get_peer_certificate(s);
1526 BIO_puts(bio, "Peer certificate: ");
1527 X509_NAME_print_ex(bio, X509_get_subject_name(peer),
1528 0, XN_FLAG_ONELINE);
1529 BIO_puts(bio, "\n");
1530 if (SSL_get_peer_signature_nid(s, &nid))
1531 BIO_printf(bio, "Hash used: %s\n", OBJ_nid2sn(nid));
1534 BIO_puts(bio, "No peer certificate\n");
1537 #ifndef OPENSSL_NO_EC
1538 ssl_print_point_formats(bio, s);
1539 if (SSL_is_server(s))
1540 ssl_print_curves(bio, s, 1);
1542 ssl_print_tmp_key(bio, s);
1544 if (!SSL_is_server(s))
1545 ssl_print_tmp_key(bio, s);
1549 int args_ssl(char ***pargs, int *pargc, SSL_CONF_CTX *cctx,
1550 int *badarg, BIO *err, STACK_OF(OPENSSL_STRING) **pstr)
1552 char *arg = **pargs, *argn = (*pargs)[1];
1555 /* Attempt to run SSL configuration command */
1556 rv = SSL_CONF_cmd_argv(cctx, pargc, pargs);
1557 /* If parameter not recognised just return */
1560 /* see if missing argument error */
1563 BIO_printf(err, "%s needs an argument\n", arg);
1567 /* Check for some other error */
1570 BIO_printf(err, "Error with command: \"%s %s\"\n",
1571 arg, argn ? argn : "");
1575 /* Store command and argument */
1576 /* If only one argument processed store value as NULL */
1580 *pstr = sk_OPENSSL_STRING_new_null();
1581 if (!*pstr || !sk_OPENSSL_STRING_push(*pstr, arg) ||
1582 !sk_OPENSSL_STRING_push(*pstr, argn))
1584 BIO_puts(err, "Memory allocation failure\n");
1590 ERR_print_errors(err);
1595 int args_ssl_call(SSL_CTX *ctx, BIO *err, SSL_CONF_CTX *cctx,
1596 STACK_OF(OPENSSL_STRING) *str, int no_ecdhe, int no_jpake)
1599 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1600 for (i = 0; i < sk_OPENSSL_STRING_num(str); i+= 2)
1602 const char *param = sk_OPENSSL_STRING_value(str, i);
1603 const char *value = sk_OPENSSL_STRING_value(str, i + 1);
1604 /* If no_ecdhe or named curve already specified don't need
1607 if (!no_ecdhe && !strcmp(param, "-named_curve"))
1609 #ifndef OPENSSL_NO_JPAKE
1610 if (!no_jpake && !strcmp(param, "-cipher"))
1612 BIO_puts(err, "JPAKE sets cipher to PSK\n");
1616 if (SSL_CONF_cmd(cctx, param, value) <= 0)
1618 BIO_printf(err, "Error with command: \"%s %s\"\n",
1619 param, value ? value : "");
1620 ERR_print_errors(err);
1624 /* This is a special case to keep existing s_server functionality:
1625 * if we don't have any curve specified *and* we haven't disabled
1626 * ECDHE then use P-256.
1630 if (SSL_CONF_cmd(cctx, "-named_curve", "P-256") <= 0)
1632 BIO_puts(err, "Error setting EC curve\n");
1633 ERR_print_errors(err);
1637 #ifndef OPENSSL_NO_JPAKE
1640 if (SSL_CONF_cmd(cctx, "-cipher", "PSK") <= 0)
1642 BIO_puts(err, "Error setting cipher to PSK\n");
1643 ERR_print_errors(err);
1648 if (!SSL_CONF_CTX_finish(cctx))
1650 BIO_puts(err, "Error finishing context\n");
1651 ERR_print_errors(err);
1657 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1661 for (i = 0; i < sk_X509_CRL_num(crls); i++)
1663 crl = sk_X509_CRL_value(crls, i);
1664 X509_STORE_add_crl(st, crl);
1669 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1672 st = SSL_CTX_get_cert_store(ctx);
1673 add_crls_store(st, crls);
1675 store_setup_crl_download(st);
1679 int ssl_load_stores(SSL_CTX *ctx,
1680 const char *vfyCApath, const char *vfyCAfile,
1681 const char *chCApath, const char *chCAfile,
1682 STACK_OF(X509_CRL) *crls, int crl_download)
1684 X509_STORE *vfy = NULL, *ch = NULL;
1686 if (vfyCApath || vfyCAfile)
1688 vfy = X509_STORE_new();
1689 if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
1691 add_crls_store(vfy, crls);
1692 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1694 store_setup_crl_download(vfy);
1696 if (chCApath || chCAfile)
1698 ch = X509_STORE_new();
1699 if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
1701 SSL_CTX_set1_chain_cert_store(ctx, ch);
1706 X509_STORE_free(vfy);
1708 X509_STORE_free(ch);
1712 /* Verbose print out of security callback */
1718 int (*old_cb)(SSL *s, SSL_CTX *ctx, int op, int bits, int nid,
1719 void *other, void *ex);
1720 } security_debug_ex;
1722 static int security_callback_debug(SSL *s, SSL_CTX *ctx,
1723 int op, int bits, int nid,
1724 void *other, void *ex)
1726 security_debug_ex *sdb = ex;
1727 int rv, show_bits = 1, cert_md = 0;
1729 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1730 if (rv == 1 && sdb->verbose < 2)
1732 BIO_puts(sdb->out, "Security callback: ");
1736 case SSL_SECOP_CIPHER_SUPPORTED:
1737 nm = "Supported Ciphersuite";
1739 case SSL_SECOP_CIPHER_SHARED:
1740 nm = "Shared Ciphersuite";
1742 case SSL_SECOP_CIPHER_CHECK:
1743 nm = "Check Ciphersuite";
1745 case SSL_SECOP_TICKET:
1746 BIO_puts(sdb->out, "Session ticket");
1750 case SSL_SECOP_COMPRESSION:
1751 BIO_puts(sdb->out, "SSL compression");
1755 #ifndef OPENSSL_NO_DH
1756 case SSL_SECOP_TMP_DH:
1757 nm = "Temp DH key bits";
1760 case SSL_SECOP_CURVE_SUPPORTED:
1761 nm = "Supported Curve";
1763 case SSL_SECOP_CURVE_SHARED:
1764 nm = "Shared Curve";
1766 case SSL_SECOP_CURVE_CHECK:
1769 case SSL_SECOP_VERSION:
1770 BIO_printf(sdb->out, "Version=%s", ssl_version_str(nid));
1774 case SSL_SECOP_SIGALG_SUPPORTED:
1775 nm = "Supported Signature Algorithm digest";
1777 case SSL_SECOP_SIGALG_SHARED:
1778 nm = "Shared Signature Algorithm digest";
1780 case SSL_SECOP_SIGALG_CHECK:
1781 nm = "Check Signature Algorithm digest";
1783 case SSL_SECOP_SIGALG_MASK:
1784 nm = "Signature Algorithm mask";
1786 case SSL_SECOP_EE_KEY:
1787 nm = "Certificate chain EE key";
1789 case SSL_SECOP_CA_KEY:
1790 nm = "Certificate chain CA key";
1792 case SSL_SECOP_CA_MD:
1794 nm = "Certificate chain CA digest";
1796 case SSL_SECOP_PEER_EE_KEY:
1797 nm = "Peer Chain EE key";
1799 case SSL_SECOP_PEER_CA_KEY:
1800 nm = "Peer Chain CA key";
1802 case SSL_SECOP_PEER_CA_MD:
1804 nm = "Peer chain CA digest";
1810 BIO_printf(sdb->out, "%s=", nm);
1812 switch (op & SSL_SECOP_OTHER_TYPE)
1815 case SSL_SECOP_OTHER_CIPHER:
1816 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1819 #ifndef OPENSSL_NO_EC
1820 case SSL_SECOP_OTHER_CURVE:
1823 cname = EC_curve_nid2nist(nid);
1825 cname = OBJ_nid2sn(nid);
1826 BIO_puts(sdb->out, cname);
1831 case SSL_SECOP_OTHER_DH:
1834 BIO_printf(sdb->out, "%d", BN_num_bits(dh->p));
1837 case SSL_SECOP_OTHER_CERT:
1841 int sig_nid = X509_get_signature_nid(other);
1842 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1846 EVP_PKEY *pkey = X509_get_pubkey(other);
1847 const char *algname = "";
1848 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1850 EVP_PKEY_get0_asn1(pkey));
1851 BIO_printf(sdb->out, "%s, bits=%d",
1852 algname, EVP_PKEY_bits(pkey));
1853 EVP_PKEY_free(pkey);
1857 case SSL_SECOP_OTHER_SIGALG:
1859 const unsigned char *salg = other;
1860 const char *sname = NULL;
1863 case TLSEXT_signature_anonymous:
1864 sname = "anonymous";
1866 case TLSEXT_signature_rsa:
1869 case TLSEXT_signature_dsa:
1872 case TLSEXT_signature_ecdsa:
1877 BIO_puts(sdb->out, OBJ_nid2sn(nid));
1879 BIO_printf(sdb->out, ", algorithm=%s", sname);
1881 BIO_printf(sdb->out, ", algid=%d", salg[1]);
1888 BIO_printf(sdb->out, ", security bits=%d", bits);
1889 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1893 void ssl_ctx_security_debug(SSL_CTX *ctx, BIO *out, int verbose)
1895 static security_debug_ex sdb;
1897 sdb.verbose = verbose;
1898 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1899 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1900 SSL_CTX_set0_security_ex_data(ctx, &sdb);