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>
125 #define COOKIE_SECRET_LENGTH 16
129 int verify_error=X509_V_OK;
130 int verify_return_error=0;
131 unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
132 int cookie_initialized=0;
134 int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
139 err_cert=X509_STORE_CTX_get_current_cert(ctx);
140 err= X509_STORE_CTX_get_error(ctx);
141 depth= X509_STORE_CTX_get_error_depth(ctx);
143 if (!verify_quiet || !ok)
145 BIO_printf(bio_err,"depth=%d ",depth);
148 X509_NAME_print_ex(bio_err,
149 X509_get_subject_name(err_cert),
151 BIO_puts(bio_err, "\n");
154 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)
162 if (!verify_return_error)
164 verify_error=X509_V_OK;
169 verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG;
174 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
175 BIO_puts(bio_err,"issuer= ");
176 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
178 BIO_puts(bio_err, "\n");
180 case X509_V_ERR_CERT_NOT_YET_VALID:
181 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
182 BIO_printf(bio_err,"notBefore=");
183 ASN1_TIME_print(bio_err,X509_get_notBefore(err_cert));
184 BIO_printf(bio_err,"\n");
186 case X509_V_ERR_CERT_HAS_EXPIRED:
187 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
188 BIO_printf(bio_err,"notAfter=");
189 ASN1_TIME_print(bio_err,X509_get_notAfter(err_cert));
190 BIO_printf(bio_err,"\n");
192 case X509_V_ERR_NO_EXPLICIT_POLICY:
193 policies_print(bio_err, ctx);
196 if (err == X509_V_OK && ok == 2 && !verify_quiet)
197 policies_print(bio_err, ctx);
198 if (ok && !verify_quiet)
199 BIO_printf(bio_err,"verify return:%d\n",ok);
203 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
205 if (cert_file != NULL)
212 if (SSL_CTX_use_certificate_file(ctx,cert_file,
213 SSL_FILETYPE_PEM) <= 0)
215 BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file);
216 ERR_print_errors(bio_err);
219 if (key_file == NULL) key_file=cert_file;
220 if (SSL_CTX_use_PrivateKey_file(ctx,key_file,
221 SSL_FILETYPE_PEM) <= 0)
223 BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file);
224 ERR_print_errors(bio_err);
229 In theory this is no longer needed
231 x509=SSL_get_certificate(ssl);
235 pktmp = X509_get_pubkey(x509);
236 EVP_PKEY_copy_parameters(pktmp,
237 SSL_get_privatekey(ssl));
238 EVP_PKEY_free(pktmp);
243 /* If we are using DSA, we can copy the parameters from
247 /* Now we know that a key and cert have been set against
249 if (!SSL_CTX_check_private_key(ctx))
251 BIO_printf(bio_err,"Private key does not match the certificate public key\n");
258 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
259 STACK_OF(X509) *chain, int build_chain)
263 if (SSL_CTX_use_certificate(ctx,cert) <= 0)
265 BIO_printf(bio_err,"error setting certificate\n");
266 ERR_print_errors(bio_err);
270 if (SSL_CTX_use_PrivateKey(ctx,key) <= 0)
272 BIO_printf(bio_err,"error setting private key\n");
273 ERR_print_errors(bio_err);
277 /* Now we know that a key and cert have been set against
279 if (!SSL_CTX_check_private_key(ctx))
281 BIO_printf(bio_err,"Private key does not match the certificate public key\n");
284 if (chain && !SSL_CTX_set1_chain(ctx, chain))
286 BIO_printf(bio_err,"error setting certificate chain\n");
287 ERR_print_errors(bio_err);
290 if (!chain && build_chain && !SSL_CTX_build_cert_chain(ctx, 0))
292 BIO_printf(bio_err,"error building certificate chain\n");
293 ERR_print_errors(bio_err);
300 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
302 const unsigned char *p;
304 int cert_type_num = SSL_get0_certificate_types(s, &p);
307 BIO_puts(bio, "Client Certificate Types: ");
308 for (i = 0; i < cert_type_num; i++)
310 unsigned char cert_type = p[i];
314 case TLS_CT_RSA_SIGN:
318 case TLS_CT_DSS_SIGN:
322 case TLS_CT_RSA_FIXED_DH:
323 cname = "RSA fixed DH";
326 case TLS_CT_DSS_FIXED_DH:
327 cname = "DSS fixed DH";
330 case TLS_CT_ECDSA_SIGN:
331 cname = "ECDSA sign";
334 case TLS_CT_RSA_FIXED_ECDH:
335 cname = "RSA fixed ECDH";
338 case TLS_CT_ECDSA_FIXED_ECDH:
339 cname = "ECDSA fixed ECDH";
342 case TLS_CT_GOST94_SIGN:
343 cname = "GOST94 Sign";
346 case TLS_CT_GOST01_SIGN:
347 cname = "GOST01 Sign";
358 BIO_puts(bio, cname);
360 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
365 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
368 client = SSL_is_server(s) ? 0 : 1;
370 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL,
373 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
378 BIO_puts(out, "Shared ");
381 BIO_puts(out, "Requested ");
382 BIO_puts(out, "Signature Algorithms: ");
383 for (i = 0; i < nsig; i++)
385 int hash_nid, sign_nid;
386 unsigned char rhash, rsign;
387 const char *sstr = NULL;
389 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
392 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
396 if (sign_nid == EVP_PKEY_RSA)
398 else if(sign_nid == EVP_PKEY_DSA)
400 else if(sign_nid == EVP_PKEY_EC)
403 BIO_printf(out,"%s+", sstr);
405 BIO_printf(out,"0x%02X+", (int)rsign);
406 if (hash_nid != NID_undef)
407 BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
409 BIO_printf(out,"0x%02X", (int)rhash);
415 int ssl_print_sigalgs(BIO *out, SSL *s)
418 if (!SSL_is_server(s))
419 ssl_print_client_cert_types(out, s);
420 do_print_sigalgs(out, s, 0);
421 do_print_sigalgs(out, s, 1);
422 if (SSL_get_peer_signature_nid(s, &mdnid))
423 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
427 int ssl_print_curves(BIO *out, SSL *s, int noshared)
429 int i, ncurves, *curves, nid;
431 ncurves = SSL_get1_curves(s, NULL);
434 curves = OPENSSL_malloc(ncurves * sizeof(int));
435 SSL_get1_curves(s, curves);
437 BIO_puts(out, "Supported Elliptic Curves: ");
438 for (i = 0; i < ncurves; i++)
443 /* If unrecognised print out hex version */
444 if (nid & TLSEXT_nid_unknown)
445 BIO_printf(out, "0x%04X", nid & 0xFFFF);
448 /* Use NIST name for curve if it exists */
449 cname = EC_curve_nid2nist(nid);
451 cname = OBJ_nid2sn(nid);
452 BIO_printf(out, "%s", cname);
456 BIO_puts(out, "NONE");
462 BIO_puts(out, "\nShared Elliptic curves: ");
463 OPENSSL_free(curves);
464 ncurves = SSL_get_shared_curve(s, -1);
465 for (i = 0; i < ncurves; i++)
469 nid = SSL_get_shared_curve(s, i);
470 cname = EC_curve_nid2nist(nid);
472 cname = OBJ_nid2sn(nid);
473 BIO_printf(out, "%s", cname);
476 BIO_puts(out, "NONE");
481 int ssl_print_tmp_key(BIO *out, SSL *s)
484 if (!SSL_get_server_tmp_key(s, &key))
486 BIO_puts(out, "Server Temp Key: ");
487 switch (EVP_PKEY_id(key))
490 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
494 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
499 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
502 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
504 cname = EC_curve_nid2nist(nid);
506 cname = OBJ_nid2sn(nid);
507 BIO_printf(out, "ECDH, %s, %d bits\n",
508 cname, EVP_PKEY_bits(key));
516 long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
517 int argi, long argl, long ret)
521 out=(BIO *)BIO_get_callback_arg(bio);
522 if (out == NULL) return(ret);
524 if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
526 BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
527 (void *)bio,argp,(unsigned long)argi,ret,ret);
528 BIO_dump(out,argp,(int)ret);
531 else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
533 BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
534 (void *)bio,argp,(unsigned long)argi,ret,ret);
535 BIO_dump(out,argp,(int)ret);
540 void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
545 w=where& ~SSL_ST_MASK;
547 if (w & SSL_ST_CONNECT) str="SSL_connect";
548 else if (w & SSL_ST_ACCEPT) str="SSL_accept";
549 else str="undefined";
551 if (where & SSL_CB_LOOP)
553 BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
555 else if (where & SSL_CB_ALERT)
557 str=(where & SSL_CB_READ)?"read":"write";
558 BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
560 SSL_alert_type_string_long(ret),
561 SSL_alert_desc_string_long(ret));
563 else if (where & SSL_CB_EXIT)
566 BIO_printf(bio_err,"%s:failed in %s\n",
567 str,SSL_state_string_long(s));
570 BIO_printf(bio_err,"%s:error in %s\n",
571 str,SSL_state_string_long(s));
577 void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
580 const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
582 str_write_p = write_p ? ">>>" : "<<<";
587 str_version = "SSL 2.0";
590 str_version = "SSL 3.0 ";
593 str_version = "TLS 1.0 ";
596 str_version = "TLS 1.1 ";
599 str_version = "TLS 1.2 ";
602 str_version = "DTLS 1.0 ";
605 str_version = "DTLS 1.0 (bad) ";
611 if (version == SSL2_VERSION)
613 str_details1 = "???";
617 switch (((const unsigned char*)buf)[0])
620 str_details1 = ", ERROR:";
621 str_details2 = " ???";
624 unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2];
629 str_details2 = " NO-CIPHER-ERROR";
632 str_details2 = " NO-CERTIFICATE-ERROR";
635 str_details2 = " BAD-CERTIFICATE-ERROR";
638 str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
645 str_details1 = ", CLIENT-HELLO";
648 str_details1 = ", CLIENT-MASTER-KEY";
651 str_details1 = ", CLIENT-FINISHED";
654 str_details1 = ", SERVER-HELLO";
657 str_details1 = ", SERVER-VERIFY";
660 str_details1 = ", SERVER-FINISHED";
663 str_details1 = ", REQUEST-CERTIFICATE";
666 str_details1 = ", CLIENT-CERTIFICATE";
672 if (version == SSL3_VERSION ||
673 version == TLS1_VERSION ||
674 version == TLS1_1_VERSION ||
675 version == TLS1_2_VERSION ||
676 version == DTLS1_VERSION ||
677 version == DTLS1_BAD_VER)
679 switch (content_type)
682 str_content_type = "ChangeCipherSpec";
685 str_content_type = "Alert";
688 str_content_type = "Handshake";
692 if (content_type == 21) /* Alert */
694 str_details1 = ", ???";
698 switch (((const unsigned char*)buf)[0])
701 str_details1 = ", warning";
704 str_details1 = ", fatal";
708 str_details2 = " ???";
709 switch (((const unsigned char*)buf)[1])
712 str_details2 = " close_notify";
715 str_details2 = " unexpected_message";
718 str_details2 = " bad_record_mac";
721 str_details2 = " decryption_failed";
724 str_details2 = " record_overflow";
727 str_details2 = " decompression_failure";
730 str_details2 = " handshake_failure";
733 str_details2 = " bad_certificate";
736 str_details2 = " unsupported_certificate";
739 str_details2 = " certificate_revoked";
742 str_details2 = " certificate_expired";
745 str_details2 = " certificate_unknown";
748 str_details2 = " illegal_parameter";
751 str_details2 = " unknown_ca";
754 str_details2 = " access_denied";
757 str_details2 = " decode_error";
760 str_details2 = " decrypt_error";
763 str_details2 = " export_restriction";
766 str_details2 = " protocol_version";
769 str_details2 = " insufficient_security";
772 str_details2 = " internal_error";
775 str_details2 = " user_canceled";
778 str_details2 = " no_renegotiation";
781 str_details2 = " unsupported_extension";
784 str_details2 = " certificate_unobtainable";
787 str_details2 = " unrecognized_name";
790 str_details2 = " bad_certificate_status_response";
793 str_details2 = " bad_certificate_hash_value";
796 str_details2 = " unknown_psk_identity";
802 if (content_type == 22) /* Handshake */
804 str_details1 = "???";
808 switch (((const unsigned char*)buf)[0])
811 str_details1 = ", HelloRequest";
814 str_details1 = ", ClientHello";
817 str_details1 = ", ServerHello";
820 str_details1 = ", HelloVerifyRequest";
823 str_details1 = ", Certificate";
826 str_details1 = ", ServerKeyExchange";
829 str_details1 = ", CertificateRequest";
832 str_details1 = ", ServerHelloDone";
835 str_details1 = ", CertificateVerify";
838 str_details1 = ", ClientKeyExchange";
841 str_details1 = ", Finished";
847 #ifndef OPENSSL_NO_HEARTBEATS
848 if (content_type == 24) /* Heartbeat */
850 str_details1 = ", Heartbeat";
854 switch (((const unsigned char*)buf)[0])
857 str_details1 = ", HeartbeatRequest";
860 str_details1 = ", HeartbeatResponse";
868 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);
874 BIO_printf(bio, " ");
880 for (i = 0; i < num; i++)
882 if (i % 16 == 0 && i > 0)
883 BIO_printf(bio, "\n ");
884 BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
887 BIO_printf(bio, " ...");
888 BIO_printf(bio, "\n");
890 (void)BIO_flush(bio);
893 void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
894 unsigned char *data, int len,
902 case TLSEXT_TYPE_server_name:
903 extname = "server name";
906 case TLSEXT_TYPE_max_fragment_length:
907 extname = "max fragment length";
910 case TLSEXT_TYPE_client_certificate_url:
911 extname = "client certificate URL";
914 case TLSEXT_TYPE_trusted_ca_keys:
915 extname = "trusted CA keys";
918 case TLSEXT_TYPE_truncated_hmac:
919 extname = "truncated HMAC";
922 case TLSEXT_TYPE_status_request:
923 extname = "status request";
926 case TLSEXT_TYPE_user_mapping:
927 extname = "user mapping";
930 case TLSEXT_TYPE_client_authz:
931 extname = "client authz";
934 case TLSEXT_TYPE_server_authz:
935 extname = "server authz";
938 case TLSEXT_TYPE_cert_type:
939 extname = "cert type";
942 case TLSEXT_TYPE_elliptic_curves:
943 extname = "elliptic curves";
946 case TLSEXT_TYPE_ec_point_formats:
947 extname = "EC point formats";
950 case TLSEXT_TYPE_srp:
954 case TLSEXT_TYPE_signature_algorithms:
955 extname = "signature algorithms";
958 case TLSEXT_TYPE_use_srtp:
959 extname = "use SRTP";
962 case TLSEXT_TYPE_heartbeat:
963 extname = "heartbeat";
966 case TLSEXT_TYPE_session_ticket:
967 extname = "session ticket";
970 case TLSEXT_TYPE_renegotiate:
971 extname = "renegotiation info";
974 #ifdef TLSEXT_TYPE_opaque_prf_input
975 case TLSEXT_TYPE_opaque_prf_input:
976 extname = "opaque PRF input";
979 #ifdef TLSEXT_TYPE_next_proto_neg
980 case TLSEXT_TYPE_next_proto_neg:
981 extname = "next protocol";
991 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
992 client_server ? "server": "client",
994 BIO_dump(bio, (char *)data, len);
995 (void)BIO_flush(bio);
998 int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
1000 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
1001 unsigned int length, resultlength;
1004 struct sockaddr_in s4;
1005 #if OPENSSL_USE_IPV6
1006 struct sockaddr_in6 s6;
1010 /* Initialize a random secret */
1011 if (!cookie_initialized)
1013 if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
1015 BIO_printf(bio_err,"error setting random cookie secret\n");
1018 cookie_initialized = 1;
1021 /* Read peer information */
1022 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1024 /* Create buffer with peer's address and port */
1026 switch (peer.sa.sa_family)
1029 length += sizeof(struct in_addr);
1030 length += sizeof(peer.s4.sin_port);
1032 #if OPENSSL_USE_IPV6
1034 length += sizeof(struct in6_addr);
1035 length += sizeof(peer.s6.sin6_port);
1042 buffer = OPENSSL_malloc(length);
1046 BIO_printf(bio_err,"out of memory\n");
1050 switch (peer.sa.sa_family)
1055 sizeof(peer.s4.sin_port));
1056 memcpy(buffer + sizeof(peer.s4.sin_port),
1058 sizeof(struct in_addr));
1060 #if OPENSSL_USE_IPV6
1064 sizeof(peer.s6.sin6_port));
1065 memcpy(buffer + sizeof(peer.s6.sin6_port),
1067 sizeof(struct in6_addr));
1075 /* Calculate HMAC of buffer using the secret */
1076 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1077 buffer, length, result, &resultlength);
1078 OPENSSL_free(buffer);
1080 memcpy(cookie, result, resultlength);
1081 *cookie_len = resultlength;
1086 int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
1088 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
1089 unsigned int length, resultlength;
1092 struct sockaddr_in s4;
1093 #if OPENSSL_USE_IPV6
1094 struct sockaddr_in6 s6;
1098 /* If secret isn't initialized yet, the cookie can't be valid */
1099 if (!cookie_initialized)
1102 /* Read peer information */
1103 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1105 /* Create buffer with peer's address and port */
1107 switch (peer.sa.sa_family)
1110 length += sizeof(struct in_addr);
1111 length += sizeof(peer.s4.sin_port);
1113 #if OPENSSL_USE_IPV6
1115 length += sizeof(struct in6_addr);
1116 length += sizeof(peer.s6.sin6_port);
1123 buffer = OPENSSL_malloc(length);
1127 BIO_printf(bio_err,"out of memory\n");
1131 switch (peer.sa.sa_family)
1136 sizeof(peer.s4.sin_port));
1137 memcpy(buffer + sizeof(peer.s4.sin_port),
1139 sizeof(struct in_addr));
1141 #if OPENSSL_USE_IPV6
1145 sizeof(peer.s6.sin6_port));
1146 memcpy(buffer + sizeof(peer.s6.sin6_port),
1148 sizeof(struct in6_addr));
1156 /* Calculate HMAC of buffer using the secret */
1157 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1158 buffer, length, result, &resultlength);
1159 OPENSSL_free(buffer);
1161 if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)
1167 /* Example of extended certificate handling. Where the standard support
1168 * of one certificate per algorithm is not sufficient an application
1169 * can decide which certificate(s) to use at runtime based on whatever
1170 * criteria it deems appropriate.
1173 /* Linked list of certificates, keys and chains */
1174 struct ssl_excert_st
1177 const char *certfile;
1179 const char *keyfile;
1180 const char *chainfile;
1183 STACK_OF(X509) *chain;
1185 struct ssl_excert_st *next, *prev;
1194 struct chain_flags chain_flags_list[] =
1196 {CERT_PKEY_VALID, "Overall Validity"},
1197 {CERT_PKEY_SIGN, "Sign with EE key"},
1198 {CERT_PKEY_EE_SIGNATURE, "EE signature"},
1199 {CERT_PKEY_CA_SIGNATURE, "CA signature"},
1200 {CERT_PKEY_EE_PARAM, "EE key parameters"},
1201 {CERT_PKEY_CA_PARAM, "CA key parameters"},
1202 {CERT_PKEY_EXPLICIT_SIGN, "Explicity sign with EE key"},
1203 {CERT_PKEY_ISSUER_NAME, "Issuer Name"},
1204 {CERT_PKEY_CERT_TYPE, "Certificate Type"},
1209 static void print_chain_flags(BIO *out, int flags)
1211 struct chain_flags *ctmp = chain_flags_list;
1214 BIO_printf(out, "\t%s: %s\n", ctmp->name,
1215 flags & ctmp->flag ? "OK" : "NOT OK");
1220 /* Very basic selection callback: just use any certificate chain
1221 * reported as valid. More sophisticated could prioritise according
1224 static int set_cert_cb(SSL *ssl, void *arg)
1227 SSL_EXCERT *exc = arg;
1228 SSL_certs_clear(ssl);
1233 /* Go to end of list and traverse backwards since we prepend
1234 * newer entries this retains the original order.
1244 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
1245 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
1246 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
1248 BIO_puts(bio_err, "\n");
1250 print_chain_flags(bio_err, rv);
1251 if (rv & CERT_PKEY_VALID)
1253 SSL_use_certificate(ssl, exc->cert);
1254 SSL_use_PrivateKey(ssl, exc->key);
1255 /* NB: we wouldn't normally do this as it is
1256 * not efficient building chains on each connection
1257 * better to cache the chain in advance.
1259 if (exc->build_chain)
1261 if (!SSL_build_cert_chain(ssl, 0))
1264 else if (exc->chain)
1265 SSL_set1_chain(ssl, exc->chain);
1272 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
1274 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
1277 static int ssl_excert_prepend(SSL_EXCERT **pexc)
1280 exc = OPENSSL_malloc(sizeof(SSL_EXCERT));
1283 exc->certfile = NULL;
1284 exc->keyfile = NULL;
1285 exc->chainfile = NULL;
1290 exc->build_chain = 0;
1297 exc->certform = exc->next->certform;
1298 exc->keyform = exc->next->keyform;
1299 exc->next->prev = exc;
1303 exc->certform = FORMAT_PEM;
1304 exc->keyform = FORMAT_PEM;
1310 void ssl_excert_free(SSL_EXCERT *exc)
1316 X509_free(exc->cert);
1318 EVP_PKEY_free(exc->key);
1320 sk_X509_pop_free(exc->chain, X509_free);
1327 int load_excert(SSL_EXCERT **pexc, BIO *err)
1329 SSL_EXCERT *exc = *pexc;
1332 /* If nothing in list, free and set to NULL */
1333 if (!exc->certfile && !exc->next)
1335 ssl_excert_free(exc);
1339 for(; exc; exc=exc->next)
1343 BIO_printf(err, "Missing filename\n");
1346 exc->cert = load_cert(err, exc->certfile, exc->certform,
1347 NULL, NULL, "Server Certificate");
1351 exc->keyfile = exc->certfile;
1352 exc->key = load_key(err, exc->certfile, exc->certform, 0,
1353 NULL, NULL, "Server Certificate");
1358 exc->chain = load_certs(err,
1359 exc->chainfile, FORMAT_PEM,
1362 if (!exc->chainfile)
1370 int args_excert(char ***pargs, int *pargc,
1371 int *badarg, BIO *err, SSL_EXCERT **pexc)
1373 char *arg = **pargs, *argn = (*pargs)[1];
1374 SSL_EXCERT *exc = *pexc;
1378 if (ssl_excert_prepend(&exc))
1382 BIO_printf(err, "Error initialising xcert\n");
1387 if (strcmp(arg, "-xcert") == 0)
1394 if (exc->certfile && !ssl_excert_prepend(&exc))
1396 BIO_printf(err, "Error adding xcert\n");
1400 exc->certfile = argn;
1402 else if (strcmp(arg,"-xkey") == 0)
1411 BIO_printf(err, "Key already specified\n");
1415 exc->keyfile = argn;
1417 else if (strcmp(arg,"-xchain") == 0)
1426 BIO_printf(err, "Chain already specified\n");
1430 exc->chainfile = argn;
1432 else if (strcmp(arg,"-xchain_build") == 0)
1435 exc->build_chain = 1;
1437 else if (strcmp(arg,"-xcertform") == 0)
1444 exc->certform = str2fmt(argn);
1446 else if (strcmp(arg,"-xkeyform") == 0)
1453 exc->keyform = str2fmt(argn);
1468 ERR_print_errors(err);
1469 ssl_excert_free(exc);
1474 static void print_raw_cipherlist(BIO *bio, SSL *s)
1476 const unsigned char *rlist;
1477 static const unsigned char scsv_id[] = {0, 0, 0xFF};
1478 size_t i, rlistlen, num;
1479 if (!SSL_is_server(s))
1481 num = SSL_get0_raw_cipherlist(s, NULL);
1482 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
1483 BIO_puts(bio, "Client cipher list: ");
1484 for (i = 0; i < rlistlen; i += num, rlist += num)
1486 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
1490 BIO_puts(bio, SSL_CIPHER_get_name(c));
1491 else if (!memcmp(rlist, scsv_id - num + 3, num))
1492 BIO_puts(bio, "SCSV");
1496 BIO_puts(bio, "0x");
1497 for (j = 0; j < num; j++)
1498 BIO_printf(bio, "%02X", rlist[j]);
1501 BIO_puts(bio, "\n");
1505 void print_ssl_summary(BIO *bio, SSL *s)
1507 const SSL_CIPHER *c;
1509 /*const char *pnam = SSL_is_server(s) ? "client" : "server";*/
1510 BIO_printf(bio, "Protocol version: %s\n", SSL_get_version(s));
1511 print_raw_cipherlist(bio, s);
1512 c = SSL_get_current_cipher(s);
1513 BIO_printf(bio,"Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1514 do_print_sigalgs(bio, s, 0);
1515 peer = SSL_get_peer_certificate(s);
1519 BIO_puts(bio, "Peer certificate: ");
1520 X509_NAME_print_ex(bio, X509_get_subject_name(peer),
1521 0, XN_FLAG_ONELINE);
1522 BIO_puts(bio, "\n");
1523 if (SSL_get_peer_signature_nid(s, &nid))
1524 BIO_printf(bio, "Hash used: %s\n", OBJ_nid2sn(nid));
1527 BIO_puts(bio, "No peer certificate\n");
1530 if (SSL_is_server(s))
1531 ssl_print_curves(bio, s, 1);
1533 ssl_print_tmp_key(bio, s);
1536 void print_ssl_cert_checks(BIO *bio, SSL *s,
1537 const unsigned char *checkhost,
1538 const unsigned char *checkemail,
1539 const char *checkip)
1542 peer = SSL_get_peer_certificate(s);
1545 print_cert_checks(bio, peer, checkhost, checkemail, checkip);