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
128 int verify_error=X509_V_OK;
129 int verify_return_error=0;
130 unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
131 int cookie_initialized=0;
133 int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
138 err_cert=X509_STORE_CTX_get_current_cert(ctx);
139 err= X509_STORE_CTX_get_error(ctx);
140 depth= X509_STORE_CTX_get_error_depth(ctx);
142 BIO_printf(bio_err,"depth=%d ",depth);
145 X509_NAME_print_ex(bio_err, X509_get_subject_name(err_cert),
147 BIO_puts(bio_err, "\n");
150 BIO_puts(bio_err, "<no cert>\n");
153 BIO_printf(bio_err,"verify error:num=%d:%s\n",err,
154 X509_verify_cert_error_string(err));
155 if (verify_depth >= depth)
157 if (!verify_return_error)
159 verify_error=X509_V_OK;
164 verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG;
169 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
170 BIO_puts(bio_err,"issuer= ");
171 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
173 BIO_puts(bio_err, "\n");
175 case X509_V_ERR_CERT_NOT_YET_VALID:
176 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
177 BIO_printf(bio_err,"notBefore=");
178 ASN1_TIME_print(bio_err,X509_get_notBefore(err_cert));
179 BIO_printf(bio_err,"\n");
181 case X509_V_ERR_CERT_HAS_EXPIRED:
182 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
183 BIO_printf(bio_err,"notAfter=");
184 ASN1_TIME_print(bio_err,X509_get_notAfter(err_cert));
185 BIO_printf(bio_err,"\n");
187 case X509_V_ERR_NO_EXPLICIT_POLICY:
188 policies_print(bio_err, ctx);
191 if (err == X509_V_OK && ok == 2)
192 policies_print(bio_err, ctx);
194 BIO_printf(bio_err,"verify return:%d\n",ok);
198 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
200 if (cert_file != NULL)
207 if (SSL_CTX_use_certificate_file(ctx,cert_file,
208 SSL_FILETYPE_PEM) <= 0)
210 BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file);
211 ERR_print_errors(bio_err);
214 if (key_file == NULL) key_file=cert_file;
215 if (SSL_CTX_use_PrivateKey_file(ctx,key_file,
216 SSL_FILETYPE_PEM) <= 0)
218 BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file);
219 ERR_print_errors(bio_err);
224 In theory this is no longer needed
226 x509=SSL_get_certificate(ssl);
230 pktmp = X509_get_pubkey(x509);
231 EVP_PKEY_copy_parameters(pktmp,
232 SSL_get_privatekey(ssl));
233 EVP_PKEY_free(pktmp);
238 /* If we are using DSA, we can copy the parameters from
242 /* Now we know that a key and cert have been set against
244 if (!SSL_CTX_check_private_key(ctx))
246 BIO_printf(bio_err,"Private key does not match the certificate public key\n");
253 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
254 STACK_OF(X509) *chain, int build_chain)
258 if (SSL_CTX_use_certificate(ctx,cert) <= 0)
260 BIO_printf(bio_err,"error setting certificate\n");
261 ERR_print_errors(bio_err);
265 if (SSL_CTX_use_PrivateKey(ctx,key) <= 0)
267 BIO_printf(bio_err,"error setting private key\n");
268 ERR_print_errors(bio_err);
272 /* Now we know that a key and cert have been set against
274 if (!SSL_CTX_check_private_key(ctx))
276 BIO_printf(bio_err,"Private key does not match the certificate public key\n");
279 if (chain && !SSL_CTX_set1_chain(ctx, chain))
281 BIO_printf(bio_err,"error setting certificate chain\n");
282 ERR_print_errors(bio_err);
285 if (!chain && build_chain && !SSL_CTX_build_cert_chain(ctx, 0))
287 BIO_printf(bio_err,"error building certificate chain\n");
288 ERR_print_errors(bio_err);
295 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
297 const unsigned char *p;
299 int cert_type_num = SSL_get0_certificate_types(s, &p);
302 BIO_puts(bio, "Client Certificate Types: ");
303 for (i = 0; i < cert_type_num; i++)
305 unsigned char cert_type = p[i];
309 case TLS_CT_RSA_SIGN:
313 case TLS_CT_DSS_SIGN:
317 case TLS_CT_RSA_FIXED_DH:
318 cname = "RSA fixed DH";
321 case TLS_CT_DSS_FIXED_DH:
322 cname = "DSS fixed DH";
325 case TLS_CT_ECDSA_SIGN:
326 cname = "ECDSA sign";
329 case TLS_CT_RSA_FIXED_ECDH:
330 cname = "RSA fixed ECDH";
333 case TLS_CT_ECDSA_FIXED_ECDH:
334 cname = "ECDSA fixed ECDH";
337 case TLS_CT_GOST94_SIGN:
338 cname = "GOST94 Sign";
341 case TLS_CT_GOST01_SIGN:
342 cname = "GOST01 Sign";
353 BIO_puts(bio, cname);
355 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
360 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
363 client = SSL_is_server(s) ? 0 : 1;
365 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL,
368 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
373 BIO_puts(out, "Shared ");
376 BIO_puts(out, "Requested ");
377 BIO_puts(out, "Signature Algorithms: ");
378 for (i = 0; i < nsig; i++)
380 int hash_nid, sign_nid;
381 unsigned char rhash, rsign;
382 const char *sstr = NULL;
384 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
387 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
391 if (sign_nid == EVP_PKEY_RSA)
393 else if(sign_nid == EVP_PKEY_DSA)
395 else if(sign_nid == EVP_PKEY_EC)
398 BIO_printf(out,"%s+", sstr);
400 BIO_printf(out,"0x%02X+", (int)rsign);
401 if (hash_nid != NID_undef)
402 BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
404 BIO_printf(out,"0x%02X", (int)rhash);
410 int ssl_print_sigalgs(BIO *out, SSL *s)
413 if (!SSL_is_server(s))
414 ssl_print_client_cert_types(out, s);
415 do_print_sigalgs(out, s, 0);
416 do_print_sigalgs(out, s, 1);
417 if (SSL_get_peer_signature_nid(s, &mdnid))
418 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
422 int ssl_print_point_formats(BIO *out, SSL *s)
425 const char *pformats;
426 nformats = SSL_get0_ec_point_formats(s, &pformats);
429 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
430 for (i = 0; i < nformats; i++, pformats++)
436 case TLSEXT_ECPOINTFORMAT_uncompressed:
437 BIO_puts(out, "uncompressed");
440 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
441 BIO_puts(out, "ansiX962_compressed_prime");
444 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
445 BIO_puts(out, "ansiX962_compressed_char2");
449 BIO_printf(out, "unknown(%d)", (int)*pformats);
455 BIO_puts(out, "NONE");
461 int ssl_print_curves(BIO *out, SSL *s)
463 int i, ncurves, *curves, nid;
465 ncurves = SSL_get1_curves(s, NULL);
468 curves = OPENSSL_malloc(ncurves * sizeof(int));
469 SSL_get1_curves(s, curves);
471 BIO_puts(out, "Supported Elliptic Curves: ");
472 for (i = 0; i < ncurves; i++)
477 /* If unrecognised print out hex version */
478 if (nid & TLSEXT_nid_unknown)
479 BIO_printf(out, "0x%04X", nid & 0xFFFF);
482 /* Use NIST name for curve if it exists */
483 cname = EC_curve_nid2nist(nid);
485 cname = OBJ_nid2sn(nid);
486 BIO_printf(out, "%s", cname);
489 BIO_puts(out, "\nShared Elliptic curves: ");
490 OPENSSL_free(curves);
491 ncurves = SSL_get_shared_curve(s, -1);
492 for (i = 0; i < ncurves; i++)
496 nid = SSL_get_shared_curve(s, i);
497 cname = EC_curve_nid2nist(nid);
499 cname = OBJ_nid2sn(nid);
500 BIO_printf(out, "%s", cname);
503 BIO_puts(out, "NONE");
508 int ssl_print_tmp_key(BIO *out, SSL *s)
511 if (!SSL_get_server_tmp_key(s, &key))
513 BIO_puts(out, "Server Temp Key: ");
514 switch (EVP_PKEY_id(key))
517 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
521 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
526 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
529 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
531 cname = EC_curve_nid2nist(nid);
533 cname = OBJ_nid2sn(nid);
534 BIO_printf(out, "ECDH, %s, %d bits\n",
535 cname, EVP_PKEY_bits(key));
543 long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
544 int argi, long argl, long ret)
548 out=(BIO *)BIO_get_callback_arg(bio);
549 if (out == NULL) return(ret);
551 if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
553 BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
554 (void *)bio,argp,(unsigned long)argi,ret,ret);
555 BIO_dump(out,argp,(int)ret);
558 else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
560 BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
561 (void *)bio,argp,(unsigned long)argi,ret,ret);
562 BIO_dump(out,argp,(int)ret);
567 void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
572 w=where& ~SSL_ST_MASK;
574 if (w & SSL_ST_CONNECT) str="SSL_connect";
575 else if (w & SSL_ST_ACCEPT) str="SSL_accept";
576 else str="undefined";
578 if (where & SSL_CB_LOOP)
580 BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
582 else if (where & SSL_CB_ALERT)
584 str=(where & SSL_CB_READ)?"read":"write";
585 BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
587 SSL_alert_type_string_long(ret),
588 SSL_alert_desc_string_long(ret));
590 else if (where & SSL_CB_EXIT)
593 BIO_printf(bio_err,"%s:failed in %s\n",
594 str,SSL_state_string_long(s));
597 BIO_printf(bio_err,"%s:error in %s\n",
598 str,SSL_state_string_long(s));
604 void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
607 const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
609 str_write_p = write_p ? ">>>" : "<<<";
614 str_version = "SSL 2.0";
617 str_version = "SSL 3.0 ";
620 str_version = "TLS 1.0 ";
623 str_version = "TLS 1.1 ";
626 str_version = "TLS 1.2 ";
629 str_version = "DTLS 1.0 ";
632 str_version = "DTLS 1.0 (bad) ";
638 if (version == SSL2_VERSION)
640 str_details1 = "???";
644 switch (((const unsigned char*)buf)[0])
647 str_details1 = ", ERROR:";
648 str_details2 = " ???";
651 unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2];
656 str_details2 = " NO-CIPHER-ERROR";
659 str_details2 = " NO-CERTIFICATE-ERROR";
662 str_details2 = " BAD-CERTIFICATE-ERROR";
665 str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
672 str_details1 = ", CLIENT-HELLO";
675 str_details1 = ", CLIENT-MASTER-KEY";
678 str_details1 = ", CLIENT-FINISHED";
681 str_details1 = ", SERVER-HELLO";
684 str_details1 = ", SERVER-VERIFY";
687 str_details1 = ", SERVER-FINISHED";
690 str_details1 = ", REQUEST-CERTIFICATE";
693 str_details1 = ", CLIENT-CERTIFICATE";
699 if (version == SSL3_VERSION ||
700 version == TLS1_VERSION ||
701 version == TLS1_1_VERSION ||
702 version == TLS1_2_VERSION ||
703 version == DTLS1_VERSION ||
704 version == DTLS1_BAD_VER)
706 switch (content_type)
709 str_content_type = "ChangeCipherSpec";
712 str_content_type = "Alert";
715 str_content_type = "Handshake";
719 if (content_type == 21) /* Alert */
721 str_details1 = ", ???";
725 switch (((const unsigned char*)buf)[0])
728 str_details1 = ", warning";
731 str_details1 = ", fatal";
735 str_details2 = " ???";
736 switch (((const unsigned char*)buf)[1])
739 str_details2 = " close_notify";
742 str_details2 = " unexpected_message";
745 str_details2 = " bad_record_mac";
748 str_details2 = " decryption_failed";
751 str_details2 = " record_overflow";
754 str_details2 = " decompression_failure";
757 str_details2 = " handshake_failure";
760 str_details2 = " bad_certificate";
763 str_details2 = " unsupported_certificate";
766 str_details2 = " certificate_revoked";
769 str_details2 = " certificate_expired";
772 str_details2 = " certificate_unknown";
775 str_details2 = " illegal_parameter";
778 str_details2 = " unknown_ca";
781 str_details2 = " access_denied";
784 str_details2 = " decode_error";
787 str_details2 = " decrypt_error";
790 str_details2 = " export_restriction";
793 str_details2 = " protocol_version";
796 str_details2 = " insufficient_security";
799 str_details2 = " internal_error";
802 str_details2 = " user_canceled";
805 str_details2 = " no_renegotiation";
808 str_details2 = " unsupported_extension";
811 str_details2 = " certificate_unobtainable";
814 str_details2 = " unrecognized_name";
817 str_details2 = " bad_certificate_status_response";
820 str_details2 = " bad_certificate_hash_value";
823 str_details2 = " unknown_psk_identity";
829 if (content_type == 22) /* Handshake */
831 str_details1 = "???";
835 switch (((const unsigned char*)buf)[0])
838 str_details1 = ", HelloRequest";
841 str_details1 = ", ClientHello";
844 str_details1 = ", ServerHello";
847 str_details1 = ", HelloVerifyRequest";
850 str_details1 = ", Certificate";
853 str_details1 = ", ServerKeyExchange";
856 str_details1 = ", CertificateRequest";
859 str_details1 = ", ServerHelloDone";
862 str_details1 = ", CertificateVerify";
865 str_details1 = ", ClientKeyExchange";
868 str_details1 = ", Finished";
874 #ifndef OPENSSL_NO_HEARTBEATS
875 if (content_type == 24) /* Heartbeat */
877 str_details1 = ", Heartbeat";
881 switch (((const unsigned char*)buf)[0])
884 str_details1 = ", HeartbeatRequest";
887 str_details1 = ", HeartbeatResponse";
895 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);
901 BIO_printf(bio, " ");
907 for (i = 0; i < num; i++)
909 if (i % 16 == 0 && i > 0)
910 BIO_printf(bio, "\n ");
911 BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
914 BIO_printf(bio, " ...");
915 BIO_printf(bio, "\n");
917 (void)BIO_flush(bio);
920 void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
921 unsigned char *data, int len,
929 case TLSEXT_TYPE_server_name:
930 extname = "server name";
933 case TLSEXT_TYPE_max_fragment_length:
934 extname = "max fragment length";
937 case TLSEXT_TYPE_client_certificate_url:
938 extname = "client certificate URL";
941 case TLSEXT_TYPE_trusted_ca_keys:
942 extname = "trusted CA keys";
945 case TLSEXT_TYPE_truncated_hmac:
946 extname = "truncated HMAC";
949 case TLSEXT_TYPE_status_request:
950 extname = "status request";
953 case TLSEXT_TYPE_user_mapping:
954 extname = "user mapping";
957 case TLSEXT_TYPE_client_authz:
958 extname = "client authz";
961 case TLSEXT_TYPE_server_authz:
962 extname = "server authz";
965 case TLSEXT_TYPE_cert_type:
966 extname = "cert type";
969 case TLSEXT_TYPE_elliptic_curves:
970 extname = "elliptic curves";
973 case TLSEXT_TYPE_ec_point_formats:
974 extname = "EC point formats";
977 case TLSEXT_TYPE_srp:
981 case TLSEXT_TYPE_signature_algorithms:
982 extname = "signature algorithms";
985 case TLSEXT_TYPE_use_srtp:
986 extname = "use SRTP";
989 case TLSEXT_TYPE_heartbeat:
990 extname = "heartbeat";
993 case TLSEXT_TYPE_session_ticket:
994 extname = "session ticket";
997 case TLSEXT_TYPE_renegotiate:
998 extname = "renegotiation info";
1001 #ifdef TLSEXT_TYPE_opaque_prf_input
1002 case TLSEXT_TYPE_opaque_prf_input:
1003 extname = "opaque PRF input";
1006 #ifdef TLSEXT_TYPE_next_proto_neg
1007 case TLSEXT_TYPE_next_proto_neg:
1008 extname = "next protocol";
1013 extname = "unknown";
1018 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
1019 client_server ? "server": "client",
1020 extname, type, len);
1021 BIO_dump(bio, (char *)data, len);
1022 (void)BIO_flush(bio);
1025 int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
1027 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
1028 unsigned int length, resultlength;
1031 struct sockaddr_in s4;
1032 #if OPENSSL_USE_IPV6
1033 struct sockaddr_in6 s6;
1037 /* Initialize a random secret */
1038 if (!cookie_initialized)
1040 if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
1042 BIO_printf(bio_err,"error setting random cookie secret\n");
1045 cookie_initialized = 1;
1048 /* Read peer information */
1049 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1051 /* Create buffer with peer's address and port */
1053 switch (peer.sa.sa_family)
1056 length += sizeof(struct in_addr);
1057 length += sizeof(peer.s4.sin_port);
1059 #if OPENSSL_USE_IPV6
1061 length += sizeof(struct in6_addr);
1062 length += sizeof(peer.s6.sin6_port);
1069 buffer = OPENSSL_malloc(length);
1073 BIO_printf(bio_err,"out of memory\n");
1077 switch (peer.sa.sa_family)
1082 sizeof(peer.s4.sin_port));
1083 memcpy(buffer + sizeof(peer.s4.sin_port),
1085 sizeof(struct in_addr));
1087 #if OPENSSL_USE_IPV6
1091 sizeof(peer.s6.sin6_port));
1092 memcpy(buffer + sizeof(peer.s6.sin6_port),
1094 sizeof(struct in6_addr));
1102 /* Calculate HMAC of buffer using the secret */
1103 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1104 buffer, length, result, &resultlength);
1105 OPENSSL_free(buffer);
1107 memcpy(cookie, result, resultlength);
1108 *cookie_len = resultlength;
1113 int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
1115 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
1116 unsigned int length, resultlength;
1119 struct sockaddr_in s4;
1120 #if OPENSSL_USE_IPV6
1121 struct sockaddr_in6 s6;
1125 /* If secret isn't initialized yet, the cookie can't be valid */
1126 if (!cookie_initialized)
1129 /* Read peer information */
1130 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1132 /* Create buffer with peer's address and port */
1134 switch (peer.sa.sa_family)
1137 length += sizeof(struct in_addr);
1138 length += sizeof(peer.s4.sin_port);
1140 #if OPENSSL_USE_IPV6
1142 length += sizeof(struct in6_addr);
1143 length += sizeof(peer.s6.sin6_port);
1150 buffer = OPENSSL_malloc(length);
1154 BIO_printf(bio_err,"out of memory\n");
1158 switch (peer.sa.sa_family)
1163 sizeof(peer.s4.sin_port));
1164 memcpy(buffer + sizeof(peer.s4.sin_port),
1166 sizeof(struct in_addr));
1168 #if OPENSSL_USE_IPV6
1172 sizeof(peer.s6.sin6_port));
1173 memcpy(buffer + sizeof(peer.s6.sin6_port),
1175 sizeof(struct in6_addr));
1183 /* Calculate HMAC of buffer using the secret */
1184 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1185 buffer, length, result, &resultlength);
1186 OPENSSL_free(buffer);
1188 if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)
1194 /* Example of extended certificate handling. Where the standard support
1195 * of one certificate per algorithm is not sufficient an application
1196 * can decide which certificate(s) to use at runtime based on whatever
1197 * criteria it deems appropriate.
1200 /* Linked list of certificates, keys and chains */
1201 struct ssl_excert_st
1204 const char *certfile;
1206 const char *keyfile;
1207 const char *chainfile;
1210 STACK_OF(X509) *chain;
1212 struct ssl_excert_st *next, *prev;
1221 struct chain_flags chain_flags_list[] =
1223 {CERT_PKEY_VALID, "Overall Validity"},
1224 {CERT_PKEY_SIGN, "Sign with EE key"},
1225 {CERT_PKEY_EE_SIGNATURE, "EE signature"},
1226 {CERT_PKEY_CA_SIGNATURE, "CA signature"},
1227 {CERT_PKEY_EE_PARAM, "EE key parameters"},
1228 {CERT_PKEY_CA_PARAM, "CA key parameters"},
1229 {CERT_PKEY_EXPLICIT_SIGN, "Explicity sign with EE key"},
1230 {CERT_PKEY_ISSUER_NAME, "Issuer Name"},
1231 {CERT_PKEY_CERT_TYPE, "Certificate Type"},
1236 static void print_chain_flags(BIO *out, int flags)
1238 struct chain_flags *ctmp = chain_flags_list;
1241 BIO_printf(out, "\t%s: %s\n", ctmp->name,
1242 flags & ctmp->flag ? "OK" : "NOT OK");
1247 /* Very basic selection callback: just use any certificate chain
1248 * reported as valid. More sophisticated could prioritise according
1251 static int set_cert_cb(SSL *ssl, void *arg)
1254 SSL_EXCERT *exc = arg;
1255 SSL_certs_clear(ssl);
1260 /* Go to end of list and traverse backwards since we prepend
1261 * newer entries this retains the original order.
1271 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
1272 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
1273 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
1275 BIO_puts(bio_err, "\n");
1277 print_chain_flags(bio_err, rv);
1278 if (rv & CERT_PKEY_VALID)
1280 SSL_use_certificate(ssl, exc->cert);
1281 SSL_use_PrivateKey(ssl, exc->key);
1282 /* NB: we wouldn't normally do this as it is
1283 * not efficient building chains on each connection
1284 * better to cache the chain in advance.
1286 if (exc->build_chain)
1288 if (!SSL_build_cert_chain(ssl, 0))
1291 else if (exc->chain)
1292 SSL_set1_chain(ssl, exc->chain);
1299 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
1301 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
1304 static int ssl_excert_prepend(SSL_EXCERT **pexc)
1307 exc = OPENSSL_malloc(sizeof(SSL_EXCERT));
1310 exc->certfile = NULL;
1311 exc->keyfile = NULL;
1312 exc->chainfile = NULL;
1317 exc->build_chain = 0;
1324 exc->certform = exc->next->certform;
1325 exc->keyform = exc->next->keyform;
1326 exc->next->prev = exc;
1330 exc->certform = FORMAT_PEM;
1331 exc->keyform = FORMAT_PEM;
1337 void ssl_excert_free(SSL_EXCERT *exc)
1343 X509_free(exc->cert);
1345 EVP_PKEY_free(exc->key);
1347 sk_X509_pop_free(exc->chain, X509_free);
1354 int load_excert(SSL_EXCERT **pexc, BIO *err)
1356 SSL_EXCERT *exc = *pexc;
1359 /* If nothing in list, free and set to NULL */
1360 if (!exc->certfile && !exc->next)
1362 ssl_excert_free(exc);
1366 for(; exc; exc=exc->next)
1370 BIO_printf(err, "Missing filename\n");
1373 exc->cert = load_cert(err, exc->certfile, exc->certform,
1374 NULL, NULL, "Server Certificate");
1378 exc->keyfile = exc->certfile;
1379 exc->key = load_key(err, exc->certfile, exc->certform, 0,
1380 NULL, NULL, "Server Certificate");
1385 exc->chain = load_certs(err,
1386 exc->chainfile, FORMAT_PEM,
1389 if (!exc->chainfile)
1397 int args_excert(char ***pargs, int *pargc,
1398 int *badarg, BIO *err, SSL_EXCERT **pexc)
1400 char *arg = **pargs, *argn = (*pargs)[1];
1401 SSL_EXCERT *exc = *pexc;
1405 if (ssl_excert_prepend(&exc))
1409 BIO_printf(err, "Error initialising xcert\n");
1414 if (strcmp(arg, "-xcert") == 0)
1421 if (exc->certfile && !ssl_excert_prepend(&exc))
1423 BIO_printf(err, "Error adding xcert\n");
1427 exc->certfile = argn;
1429 else if (strcmp(arg,"-xkey") == 0)
1438 BIO_printf(err, "Key already specified\n");
1442 exc->keyfile = argn;
1444 else if (strcmp(arg,"-xchain") == 0)
1453 BIO_printf(err, "Chain already specified\n");
1457 exc->chainfile = argn;
1459 else if (strcmp(arg,"-xchain_build") == 0)
1462 exc->build_chain = 1;
1464 else if (strcmp(arg,"-xcertform") == 0)
1471 exc->certform = str2fmt(argn);
1473 else if (strcmp(arg,"-xkeyform") == 0)
1480 exc->keyform = str2fmt(argn);
1495 ERR_print_errors(err);
1496 ssl_excert_free(exc);
1501 int args_ssl(char ***pargs, int *pargc, SSL_CONF_CTX *cctx,
1502 int *badarg, BIO *err, STACK_OF(OPENSSL_STRING) **pstr)
1504 char *arg = **pargs, *argn = (*pargs)[1];
1507 /* Attempt to run SSL configuration command */
1508 rv = SSL_CONF_cmd_argv(cctx, pargc, pargs);
1509 /* If parameter not recognised just return */
1512 /* see if missing argument error */
1515 BIO_printf(err, "%s needs an argument\n", arg);
1519 /* Check for some other error */
1522 BIO_printf(err, "Error with command: \"%s %s\"\n",
1523 arg, argn ? argn : "");
1527 /* Store command and argument */
1528 /* If only one argument processed store value as NULL */
1532 *pstr = sk_OPENSSL_STRING_new_null();
1533 if (!*pstr || !sk_OPENSSL_STRING_push(*pstr, arg) ||
1534 !sk_OPENSSL_STRING_push(*pstr, argn))
1536 BIO_puts(err, "Memory allocation failure\n");
1542 ERR_print_errors(err);
1547 int args_ssl_call(SSL_CTX *ctx, BIO *err, SSL_CONF_CTX *cctx,
1548 STACK_OF(OPENSSL_STRING) *str, int no_ecdhe)
1551 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1552 for (i = 0; i < sk_OPENSSL_STRING_num(str); i+= 2)
1554 const char *param = sk_OPENSSL_STRING_value(str, i);
1555 const char *value = sk_OPENSSL_STRING_value(str, i + 1);
1556 /* If no_ecdhe or named curve already specified don't need
1559 if (!no_ecdhe && !strcmp(param, "-named_curve"))
1561 if (SSL_CONF_cmd(cctx, param, value) <= 0)
1563 BIO_printf(err, "Error with command: \"%s %s\"\n",
1564 param, value ? value : "");
1565 ERR_print_errors(err);
1569 /* This is a special case to keep existing s_server functionality:
1570 * if we don't have any curve specified *and* we haven't disabled
1571 * ECDHE then use P-256.
1575 if (SSL_CONF_cmd(cctx, "-named_curve", "P-256") <= 0)
1577 BIO_puts(err, "Error setting EC curve\n");
1578 ERR_print_errors(err);