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)
637 return "DTLS 1.0 (bad)";
643 void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
646 const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
648 str_write_p = write_p ? ">>>" : "<<<";
650 str_version = ssl_version_str(version);
652 if (version == SSL2_VERSION)
654 str_details1 = "???";
658 switch (((const unsigned char*)buf)[0])
661 str_details1 = ", ERROR:";
662 str_details2 = " ???";
665 unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2];
670 str_details2 = " NO-CIPHER-ERROR";
673 str_details2 = " NO-CERTIFICATE-ERROR";
676 str_details2 = " BAD-CERTIFICATE-ERROR";
679 str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
686 str_details1 = ", CLIENT-HELLO";
689 str_details1 = ", CLIENT-MASTER-KEY";
692 str_details1 = ", CLIENT-FINISHED";
695 str_details1 = ", SERVER-HELLO";
698 str_details1 = ", SERVER-VERIFY";
701 str_details1 = ", SERVER-FINISHED";
704 str_details1 = ", REQUEST-CERTIFICATE";
707 str_details1 = ", CLIENT-CERTIFICATE";
713 if (version == SSL3_VERSION ||
714 version == TLS1_VERSION ||
715 version == TLS1_1_VERSION ||
716 version == TLS1_2_VERSION ||
717 version == DTLS1_VERSION ||
718 version == DTLS1_BAD_VER)
720 switch (content_type)
723 str_content_type = "ChangeCipherSpec";
726 str_content_type = "Alert";
729 str_content_type = "Handshake";
733 if (content_type == 21) /* Alert */
735 str_details1 = ", ???";
739 switch (((const unsigned char*)buf)[0])
742 str_details1 = ", warning";
745 str_details1 = ", fatal";
749 str_details2 = " ???";
750 switch (((const unsigned char*)buf)[1])
753 str_details2 = " close_notify";
756 str_details2 = " unexpected_message";
759 str_details2 = " bad_record_mac";
762 str_details2 = " decryption_failed";
765 str_details2 = " record_overflow";
768 str_details2 = " decompression_failure";
771 str_details2 = " handshake_failure";
774 str_details2 = " bad_certificate";
777 str_details2 = " unsupported_certificate";
780 str_details2 = " certificate_revoked";
783 str_details2 = " certificate_expired";
786 str_details2 = " certificate_unknown";
789 str_details2 = " illegal_parameter";
792 str_details2 = " unknown_ca";
795 str_details2 = " access_denied";
798 str_details2 = " decode_error";
801 str_details2 = " decrypt_error";
804 str_details2 = " export_restriction";
807 str_details2 = " protocol_version";
810 str_details2 = " insufficient_security";
813 str_details2 = " internal_error";
816 str_details2 = " user_canceled";
819 str_details2 = " no_renegotiation";
822 str_details2 = " unsupported_extension";
825 str_details2 = " certificate_unobtainable";
828 str_details2 = " unrecognized_name";
831 str_details2 = " bad_certificate_status_response";
834 str_details2 = " bad_certificate_hash_value";
837 str_details2 = " unknown_psk_identity";
843 if (content_type == 22) /* Handshake */
845 str_details1 = "???";
849 switch (((const unsigned char*)buf)[0])
852 str_details1 = ", HelloRequest";
855 str_details1 = ", ClientHello";
858 str_details1 = ", ServerHello";
861 str_details1 = ", HelloVerifyRequest";
864 str_details1 = ", Certificate";
867 str_details1 = ", ServerKeyExchange";
870 str_details1 = ", CertificateRequest";
873 str_details1 = ", ServerHelloDone";
876 str_details1 = ", CertificateVerify";
879 str_details1 = ", ClientKeyExchange";
882 str_details1 = ", Finished";
885 str_details1 = ", SupplementalData";
891 #ifndef OPENSSL_NO_HEARTBEATS
892 if (content_type == 24) /* Heartbeat */
894 str_details1 = ", Heartbeat";
898 switch (((const unsigned char*)buf)[0])
901 str_details1 = ", HeartbeatRequest";
904 str_details1 = ", HeartbeatResponse";
912 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);
918 BIO_printf(bio, " ");
924 for (i = 0; i < num; i++)
926 if (i % 16 == 0 && i > 0)
927 BIO_printf(bio, "\n ");
928 BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
931 BIO_printf(bio, " ...");
932 BIO_printf(bio, "\n");
934 (void)BIO_flush(bio);
937 void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
938 unsigned char *data, int len,
946 case TLSEXT_TYPE_server_name:
947 extname = "server name";
950 case TLSEXT_TYPE_max_fragment_length:
951 extname = "max fragment length";
954 case TLSEXT_TYPE_client_certificate_url:
955 extname = "client certificate URL";
958 case TLSEXT_TYPE_trusted_ca_keys:
959 extname = "trusted CA keys";
962 case TLSEXT_TYPE_truncated_hmac:
963 extname = "truncated HMAC";
966 case TLSEXT_TYPE_status_request:
967 extname = "status request";
970 case TLSEXT_TYPE_user_mapping:
971 extname = "user mapping";
974 case TLSEXT_TYPE_client_authz:
975 extname = "client authz";
978 case TLSEXT_TYPE_server_authz:
979 extname = "server authz";
982 case TLSEXT_TYPE_cert_type:
983 extname = "cert type";
986 case TLSEXT_TYPE_elliptic_curves:
987 extname = "elliptic curves";
990 case TLSEXT_TYPE_ec_point_formats:
991 extname = "EC point formats";
994 case TLSEXT_TYPE_srp:
998 case TLSEXT_TYPE_signature_algorithms:
999 extname = "signature algorithms";
1002 case TLSEXT_TYPE_use_srtp:
1003 extname = "use SRTP";
1006 case TLSEXT_TYPE_heartbeat:
1007 extname = "heartbeat";
1010 case TLSEXT_TYPE_session_ticket:
1011 extname = "session ticket";
1014 case TLSEXT_TYPE_renegotiate:
1015 extname = "renegotiation info";
1018 #ifdef TLSEXT_TYPE_opaque_prf_input
1019 case TLSEXT_TYPE_opaque_prf_input:
1020 extname = "opaque PRF input";
1023 #ifdef TLSEXT_TYPE_next_proto_neg
1024 case TLSEXT_TYPE_next_proto_neg:
1025 extname = "next protocol";
1028 #ifdef TLSEXT_TYPE_encrypt_then_mac
1029 case TLSEXT_TYPE_encrypt_then_mac:
1030 extname = "encrypt-then-mac";
1033 case TLSEXT_TYPE_padding:
1034 extname = "TLS padding";
1038 extname = "unknown";
1043 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
1044 client_server ? "server": "client",
1045 extname, type, len);
1046 BIO_dump(bio, (char *)data, len);
1047 (void)BIO_flush(bio);
1050 int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
1052 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
1053 unsigned int length, resultlength;
1056 struct sockaddr_in s4;
1057 #if OPENSSL_USE_IPV6
1058 struct sockaddr_in6 s6;
1062 /* Initialize a random secret */
1063 if (!cookie_initialized)
1065 if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
1067 BIO_printf(bio_err,"error setting random cookie secret\n");
1070 cookie_initialized = 1;
1073 /* Read peer information */
1074 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1076 /* Create buffer with peer's address and port */
1078 switch (peer.sa.sa_family)
1081 length += sizeof(struct in_addr);
1082 length += sizeof(peer.s4.sin_port);
1084 #if OPENSSL_USE_IPV6
1086 length += sizeof(struct in6_addr);
1087 length += sizeof(peer.s6.sin6_port);
1094 buffer = OPENSSL_malloc(length);
1098 BIO_printf(bio_err,"out of memory\n");
1102 switch (peer.sa.sa_family)
1107 sizeof(peer.s4.sin_port));
1108 memcpy(buffer + sizeof(peer.s4.sin_port),
1110 sizeof(struct in_addr));
1112 #if OPENSSL_USE_IPV6
1116 sizeof(peer.s6.sin6_port));
1117 memcpy(buffer + sizeof(peer.s6.sin6_port),
1119 sizeof(struct in6_addr));
1127 /* Calculate HMAC of buffer using the secret */
1128 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1129 buffer, length, result, &resultlength);
1130 OPENSSL_free(buffer);
1132 memcpy(cookie, result, resultlength);
1133 *cookie_len = resultlength;
1138 int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
1140 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
1141 unsigned int length, resultlength;
1144 struct sockaddr_in s4;
1145 #if OPENSSL_USE_IPV6
1146 struct sockaddr_in6 s6;
1150 /* If secret isn't initialized yet, the cookie can't be valid */
1151 if (!cookie_initialized)
1154 /* Read peer information */
1155 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1157 /* Create buffer with peer's address and port */
1159 switch (peer.sa.sa_family)
1162 length += sizeof(struct in_addr);
1163 length += sizeof(peer.s4.sin_port);
1165 #if OPENSSL_USE_IPV6
1167 length += sizeof(struct in6_addr);
1168 length += sizeof(peer.s6.sin6_port);
1175 buffer = OPENSSL_malloc(length);
1179 BIO_printf(bio_err,"out of memory\n");
1183 switch (peer.sa.sa_family)
1188 sizeof(peer.s4.sin_port));
1189 memcpy(buffer + sizeof(peer.s4.sin_port),
1191 sizeof(struct in_addr));
1193 #if OPENSSL_USE_IPV6
1197 sizeof(peer.s6.sin6_port));
1198 memcpy(buffer + sizeof(peer.s6.sin6_port),
1200 sizeof(struct in6_addr));
1208 /* Calculate HMAC of buffer using the secret */
1209 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1210 buffer, length, result, &resultlength);
1211 OPENSSL_free(buffer);
1213 if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)
1219 /* Example of extended certificate handling. Where the standard support
1220 * of one certificate per algorithm is not sufficient an application
1221 * can decide which certificate(s) to use at runtime based on whatever
1222 * criteria it deems appropriate.
1225 /* Linked list of certificates, keys and chains */
1226 struct ssl_excert_st
1229 const char *certfile;
1231 const char *keyfile;
1232 const char *chainfile;
1235 STACK_OF(X509) *chain;
1237 struct ssl_excert_st *next, *prev;
1246 struct chain_flags chain_flags_list[] =
1248 {CERT_PKEY_VALID, "Overall Validity"},
1249 {CERT_PKEY_SIGN, "Sign with EE key"},
1250 {CERT_PKEY_EE_SIGNATURE, "EE signature"},
1251 {CERT_PKEY_CA_SIGNATURE, "CA signature"},
1252 {CERT_PKEY_EE_PARAM, "EE key parameters"},
1253 {CERT_PKEY_CA_PARAM, "CA key parameters"},
1254 {CERT_PKEY_EXPLICIT_SIGN, "Explicity sign with EE key"},
1255 {CERT_PKEY_ISSUER_NAME, "Issuer Name"},
1256 {CERT_PKEY_CERT_TYPE, "Certificate Type"},
1261 static void print_chain_flags(BIO *out, int flags)
1263 struct chain_flags *ctmp = chain_flags_list;
1266 BIO_printf(out, "\t%s: %s\n", ctmp->name,
1267 flags & ctmp->flag ? "OK" : "NOT OK");
1272 /* Very basic selection callback: just use any certificate chain
1273 * reported as valid. More sophisticated could prioritise according
1276 static int set_cert_cb(SSL *ssl, void *arg)
1279 SSL_EXCERT *exc = arg;
1280 #ifdef CERT_CB_TEST_RETRY
1281 static int retry_cnt;
1285 fprintf(stderr, "Certificate callback retry test: count %d\n",
1290 SSL_certs_clear(ssl);
1295 /* Go to end of list and traverse backwards since we prepend
1296 * newer entries this retains the original order.
1306 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
1307 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
1308 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
1310 BIO_puts(bio_err, "\n");
1312 print_chain_flags(bio_err, rv);
1313 if (rv & CERT_PKEY_VALID)
1315 SSL_use_certificate(ssl, exc->cert);
1316 SSL_use_PrivateKey(ssl, exc->key);
1317 /* NB: we wouldn't normally do this as it is
1318 * not efficient building chains on each connection
1319 * better to cache the chain in advance.
1321 if (exc->build_chain)
1323 if (!SSL_build_cert_chain(ssl, 0))
1326 else if (exc->chain)
1327 SSL_set1_chain(ssl, exc->chain);
1334 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
1336 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
1339 static int ssl_excert_prepend(SSL_EXCERT **pexc)
1342 exc = OPENSSL_malloc(sizeof(SSL_EXCERT));
1345 exc->certfile = NULL;
1346 exc->keyfile = NULL;
1347 exc->chainfile = NULL;
1352 exc->build_chain = 0;
1359 exc->certform = exc->next->certform;
1360 exc->keyform = exc->next->keyform;
1361 exc->next->prev = exc;
1365 exc->certform = FORMAT_PEM;
1366 exc->keyform = FORMAT_PEM;
1372 void ssl_excert_free(SSL_EXCERT *exc)
1378 X509_free(exc->cert);
1380 EVP_PKEY_free(exc->key);
1382 sk_X509_pop_free(exc->chain, X509_free);
1389 int load_excert(SSL_EXCERT **pexc, BIO *err)
1391 SSL_EXCERT *exc = *pexc;
1394 /* If nothing in list, free and set to NULL */
1395 if (!exc->certfile && !exc->next)
1397 ssl_excert_free(exc);
1401 for(; exc; exc=exc->next)
1405 BIO_printf(err, "Missing filename\n");
1408 exc->cert = load_cert(err, exc->certfile, exc->certform,
1409 NULL, NULL, "Server Certificate");
1413 exc->keyfile = exc->certfile;
1414 exc->key = load_key(err, exc->certfile, exc->certform, 0,
1415 NULL, NULL, "Server Certificate");
1420 exc->chain = load_certs(err,
1421 exc->chainfile, FORMAT_PEM,
1424 if (!exc->chainfile)
1432 int args_excert(char ***pargs, int *pargc,
1433 int *badarg, BIO *err, SSL_EXCERT **pexc)
1435 char *arg = **pargs, *argn = (*pargs)[1];
1436 SSL_EXCERT *exc = *pexc;
1440 if (ssl_excert_prepend(&exc))
1444 BIO_printf(err, "Error initialising xcert\n");
1449 if (strcmp(arg, "-xcert") == 0)
1456 if (exc->certfile && !ssl_excert_prepend(&exc))
1458 BIO_printf(err, "Error adding xcert\n");
1462 exc->certfile = argn;
1464 else if (strcmp(arg,"-xkey") == 0)
1473 BIO_printf(err, "Key already specified\n");
1477 exc->keyfile = argn;
1479 else if (strcmp(arg,"-xchain") == 0)
1488 BIO_printf(err, "Chain already specified\n");
1492 exc->chainfile = argn;
1494 else if (strcmp(arg,"-xchain_build") == 0)
1497 exc->build_chain = 1;
1499 else if (strcmp(arg,"-xcertform") == 0)
1506 exc->certform = str2fmt(argn);
1508 else if (strcmp(arg,"-xkeyform") == 0)
1515 exc->keyform = str2fmt(argn);
1530 ERR_print_errors(err);
1531 ssl_excert_free(exc);
1536 static void print_raw_cipherlist(BIO *bio, SSL *s)
1538 const unsigned char *rlist;
1539 static const unsigned char scsv_id[] = {0, 0, 0xFF};
1540 size_t i, rlistlen, num;
1541 if (!SSL_is_server(s))
1543 num = SSL_get0_raw_cipherlist(s, NULL);
1544 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
1545 BIO_puts(bio, "Client cipher list: ");
1546 for (i = 0; i < rlistlen; i += num, rlist += num)
1548 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
1552 BIO_puts(bio, SSL_CIPHER_get_name(c));
1553 else if (!memcmp(rlist, scsv_id - num + 3, num))
1554 BIO_puts(bio, "SCSV");
1558 BIO_puts(bio, "0x");
1559 for (j = 0; j < num; j++)
1560 BIO_printf(bio, "%02X", rlist[j]);
1563 BIO_puts(bio, "\n");
1567 void print_ssl_summary(BIO *bio, SSL *s)
1569 const SSL_CIPHER *c;
1571 /*const char *pnam = SSL_is_server(s) ? "client" : "server";*/
1572 BIO_printf(bio, "Protocol version: %s\n", SSL_get_version(s));
1573 print_raw_cipherlist(bio, s);
1574 c = SSL_get_current_cipher(s);
1575 BIO_printf(bio,"Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1576 do_print_sigalgs(bio, s, 0);
1577 peer = SSL_get_peer_certificate(s);
1581 BIO_puts(bio, "Peer certificate: ");
1582 X509_NAME_print_ex(bio, X509_get_subject_name(peer),
1583 0, XN_FLAG_ONELINE);
1584 BIO_puts(bio, "\n");
1585 if (SSL_get_peer_signature_nid(s, &nid))
1586 BIO_printf(bio, "Hash used: %s\n", OBJ_nid2sn(nid));
1589 BIO_puts(bio, "No peer certificate\n");
1592 #ifndef OPENSSL_NO_EC
1593 ssl_print_point_formats(bio, s);
1594 if (SSL_is_server(s))
1595 ssl_print_curves(bio, s, 1);
1597 ssl_print_tmp_key(bio, s);
1599 if (!SSL_is_server(s))
1600 ssl_print_tmp_key(bio, s);
1604 int args_ssl(char ***pargs, int *pargc, SSL_CONF_CTX *cctx,
1605 int *badarg, BIO *err, STACK_OF(OPENSSL_STRING) **pstr)
1607 char *arg = **pargs, *argn = (*pargs)[1];
1610 /* Attempt to run SSL configuration command */
1611 rv = SSL_CONF_cmd_argv(cctx, pargc, pargs);
1612 /* If parameter not recognised just return */
1615 /* see if missing argument error */
1618 BIO_printf(err, "%s needs an argument\n", arg);
1622 /* Check for some other error */
1625 BIO_printf(err, "Error with command: \"%s %s\"\n",
1626 arg, argn ? argn : "");
1630 /* Store command and argument */
1631 /* If only one argument processed store value as NULL */
1635 *pstr = sk_OPENSSL_STRING_new_null();
1636 if (!*pstr || !sk_OPENSSL_STRING_push(*pstr, arg) ||
1637 !sk_OPENSSL_STRING_push(*pstr, argn))
1639 BIO_puts(err, "Memory allocation failure\n");
1645 ERR_print_errors(err);
1650 int args_ssl_call(SSL_CTX *ctx, BIO *err, SSL_CONF_CTX *cctx,
1651 STACK_OF(OPENSSL_STRING) *str, int no_ecdhe, int no_jpake)
1654 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1655 for (i = 0; i < sk_OPENSSL_STRING_num(str); i+= 2)
1657 const char *param = sk_OPENSSL_STRING_value(str, i);
1658 const char *value = sk_OPENSSL_STRING_value(str, i + 1);
1659 /* If no_ecdhe or named curve already specified don't need
1662 if (!no_ecdhe && !strcmp(param, "-named_curve"))
1664 #ifndef OPENSSL_NO_JPAKE
1665 if (!no_jpake && !strcmp(param, "-cipher"))
1667 BIO_puts(err, "JPAKE sets cipher to PSK\n");
1671 if (SSL_CONF_cmd(cctx, param, value) <= 0)
1673 BIO_printf(err, "Error with command: \"%s %s\"\n",
1674 param, value ? value : "");
1675 ERR_print_errors(err);
1679 /* This is a special case to keep existing s_server functionality:
1680 * if we don't have any curve specified *and* we haven't disabled
1681 * ECDHE then use P-256.
1685 if (SSL_CONF_cmd(cctx, "-named_curve", "P-256") <= 0)
1687 BIO_puts(err, "Error setting EC curve\n");
1688 ERR_print_errors(err);
1692 #ifndef OPENSSL_NO_JPAKE
1695 if (SSL_CONF_cmd(cctx, "-cipher", "PSK") <= 0)
1697 BIO_puts(err, "Error setting cipher to PSK\n");
1698 ERR_print_errors(err);
1703 if (!SSL_CONF_CTX_finish(cctx))
1705 BIO_puts(err, "Error finishing context\n");
1706 ERR_print_errors(err);
1712 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1716 for (i = 0; i < sk_X509_CRL_num(crls); i++)
1718 crl = sk_X509_CRL_value(crls, i);
1719 X509_STORE_add_crl(st, crl);
1724 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1727 st = SSL_CTX_get_cert_store(ctx);
1728 add_crls_store(st, crls);
1730 store_setup_crl_download(st);
1734 int ssl_load_stores(SSL_CTX *ctx,
1735 const char *vfyCApath, const char *vfyCAfile,
1736 const char *chCApath, const char *chCAfile,
1737 STACK_OF(X509_CRL) *crls, int crl_download)
1739 X509_STORE *vfy = NULL, *ch = NULL;
1741 if (vfyCApath || vfyCAfile)
1743 vfy = X509_STORE_new();
1744 if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
1746 add_crls_store(vfy, crls);
1747 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1749 store_setup_crl_download(vfy);
1751 if (chCApath || chCAfile)
1753 ch = X509_STORE_new();
1754 if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
1756 SSL_CTX_set1_chain_cert_store(ctx, ch);
1761 X509_STORE_free(vfy);
1763 X509_STORE_free(ch);
1767 /* Verbose print out of security callback */
1773 int (*old_cb)(SSL *s, SSL_CTX *ctx, int op, int bits, int nid,
1774 void *other, void *ex);
1775 } security_debug_ex;
1777 static int security_callback_debug(SSL *s, SSL_CTX *ctx,
1778 int op, int bits, int nid,
1779 void *other, void *ex)
1781 security_debug_ex *sdb = ex;
1782 int rv, show_bits = 1, cert_md = 0;
1784 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1785 if (rv == 1 && sdb->verbose < 2)
1787 BIO_puts(sdb->out, "Security callback: ");
1791 case SSL_SECOP_CIPHER_SUPPORTED:
1792 nm = "Supported Ciphersuite";
1794 case SSL_SECOP_CIPHER_SHARED:
1795 nm = "Shared Ciphersuite";
1797 case SSL_SECOP_CIPHER_CHECK:
1798 nm = "Check Ciphersuite";
1800 case SSL_SECOP_TICKET:
1801 BIO_puts(sdb->out, "Session ticket");
1805 case SSL_SECOP_COMPRESSION:
1806 BIO_puts(sdb->out, "SSL compression");
1810 #ifndef OPENSSL_NO_DH
1811 case SSL_SECOP_TMP_DH:
1812 nm = "Temp DH key bits";
1815 case SSL_SECOP_CURVE_SUPPORTED:
1816 nm = "Supported Curve";
1818 case SSL_SECOP_CURVE_SHARED:
1819 nm = "Shared Curve";
1821 case SSL_SECOP_CURVE_CHECK:
1824 case SSL_SECOP_SSL2_COMPAT:
1825 BIO_puts(sdb->out, "SSLv2 compatible");
1829 case SSL_SECOP_VERSION:
1830 BIO_printf(sdb->out, "Version=%s", ssl_version_str(nid));
1834 case SSL_SECOP_SIGALG_SUPPORTED:
1835 nm = "Supported Signature Algorithm digest";
1837 case SSL_SECOP_SIGALG_SHARED:
1838 nm = "Shared Signature Algorithm digest";
1840 case SSL_SECOP_SIGALG_CHECK:
1841 nm = "Check Signature Algorithm digest";
1843 case SSL_SECOP_SIGALG_MASK:
1844 nm = "Signature Algorithm mask";
1846 case SSL_SECOP_EE_KEY:
1847 nm = "Certificate chain EE key";
1849 case SSL_SECOP_CA_KEY:
1850 nm = "Certificate chain CA key";
1852 case SSL_SECOP_CA_MD:
1854 nm = "Certificate chain CA digest";
1856 case SSL_SECOP_PEER_EE_KEY:
1857 nm = "Peer Chain EE key";
1859 case SSL_SECOP_PEER_CA_KEY:
1860 nm = "Peer Chain CA key";
1862 case SSL_SECOP_PEER_CA_MD:
1864 nm = "Peer chain CA digest";
1870 BIO_printf(sdb->out, "%s=", nm);
1872 switch (op & SSL_SECOP_OTHER_TYPE)
1875 case SSL_SECOP_OTHER_CIPHER:
1876 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1879 case SSL_SECOP_OTHER_CURVE:
1882 cname = EC_curve_nid2nist(nid);
1884 cname = OBJ_nid2sn(nid);
1885 BIO_puts(sdb->out, cname);
1889 case SSL_SECOP_OTHER_DH:
1892 BIO_printf(sdb->out, "%d", BN_num_bits(dh->p));
1895 case SSL_SECOP_OTHER_CERT:
1899 int sig_nid = X509_get_signature_nid(other);
1900 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1904 EVP_PKEY *pkey = X509_get_pubkey(other);
1905 const char *algname = "";
1906 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1908 EVP_PKEY_get0_asn1(pkey));
1909 BIO_printf(sdb->out, "%s, bits=%d",
1910 algname, EVP_PKEY_bits(pkey));
1911 EVP_PKEY_free(pkey);
1915 case SSL_SECOP_OTHER_SIGALG:
1917 const unsigned char *salg = other;
1918 const char *sname = NULL;
1921 case TLSEXT_signature_anonymous:
1922 sname = "anonymous";
1924 case TLSEXT_signature_rsa:
1927 case TLSEXT_signature_dsa:
1930 case TLSEXT_signature_ecdsa:
1935 BIO_puts(sdb->out, OBJ_nid2sn(nid));
1937 BIO_printf(sdb->out, ", algorithm=%s", sname);
1939 BIO_printf(sdb->out, ", algid=%d", salg[1]);
1946 BIO_printf(sdb->out, ", security bits=%d", bits);
1947 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1951 void ssl_ctx_security_debug(SSL_CTX *ctx, BIO *out, int verbose)
1953 static security_debug_ex sdb;
1955 sdb.verbose = verbose;
1956 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1957 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1958 SSL_CTX_set0_security_ex_data(ctx, &sdb);