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);
294 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
296 const unsigned char *p;
298 int cert_type_num = SSL_get0_certificate_types(s, &p);
301 BIO_puts(bio, "Client Certificate Types: ");
302 for (i = 0; i < cert_type_num; i++)
304 unsigned char cert_type = p[i];
308 case TLS_CT_RSA_SIGN:
312 case TLS_CT_DSS_SIGN:
316 case TLS_CT_RSA_FIXED_DH:
317 cname = "RSA fixed DH";
320 case TLS_CT_DSS_FIXED_DH:
321 cname = "DSS fixed DH";
324 case TLS_CT_ECDSA_SIGN:
325 cname = "ECDSA sign";
328 case TLS_CT_RSA_FIXED_ECDH:
329 cname = "RSA fixed ECDH";
332 case TLS_CT_ECDSA_FIXED_ECDH:
333 cname = "ECDSA fixed ECDH";
336 case TLS_CT_GOST94_SIGN:
337 cname = "GOST94 Sign";
340 case TLS_CT_GOST01_SIGN:
341 cname = "GOST01 Sign";
352 BIO_puts(bio, cname);
354 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
359 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
362 client = SSL_is_server(s) ? 0 : 1;
364 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL,
367 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
372 BIO_puts(out, "Shared ");
375 BIO_puts(out, "Requested ");
376 BIO_puts(out, "Signature Algorithms: ");
377 for (i = 0; i < nsig; i++)
379 int hash_nid, sign_nid;
380 unsigned char rhash, rsign;
381 const char *sstr = NULL;
383 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
386 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
390 if (sign_nid == EVP_PKEY_RSA)
392 else if(sign_nid == EVP_PKEY_DSA)
394 else if(sign_nid == EVP_PKEY_EC)
397 BIO_printf(out,"%s+", sstr);
399 BIO_printf(out,"0x%02X+", (int)rsign);
400 if (hash_nid != NID_undef)
401 BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
403 BIO_printf(out,"0x%02X", (int)rhash);
409 int ssl_print_sigalgs(BIO *out, SSL *s)
412 if (!SSL_is_server(s))
413 ssl_print_client_cert_types(out, s);
414 do_print_sigalgs(out, s, 0);
415 do_print_sigalgs(out, s, 1);
416 if (SSL_get_peer_signature_nid(s, &mdnid))
417 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
421 int ssl_print_point_formats(BIO *out, SSL *s)
424 const char *pformats;
425 nformats = SSL_get0_ec_point_formats(s, &pformats);
428 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
429 for (i = 0; i < nformats; i++, pformats++)
435 case TLSEXT_ECPOINTFORMAT_uncompressed:
436 BIO_puts(out, "uncompressed");
439 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
440 BIO_puts(out, "ansiX962_compressed_prime");
443 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
444 BIO_puts(out, "ansiX962_compressed_char2");
448 BIO_printf(out, "unknown(%d)", (int)*pformats);
454 BIO_puts(out, "NONE");
460 int ssl_print_curves(BIO *out, SSL *s)
462 int i, ncurves, *curves, nid;
464 ncurves = SSL_get1_curves(s, NULL);
467 curves = OPENSSL_malloc(ncurves * sizeof(int));
468 SSL_get1_curves(s, curves);
470 BIO_puts(out, "Supported Elliptic Curves: ");
471 for (i = 0; i < ncurves; i++)
476 /* If unrecognised print out hex version */
477 if (nid & TLSEXT_nid_unknown)
478 BIO_printf(out, "0x%04X", nid & 0xFFFF);
481 /* Use NIST name for curve if it exists */
482 cname = EC_curve_nid2nist(nid);
484 cname = OBJ_nid2sn(nid);
485 BIO_printf(out, "%s", cname);
488 BIO_puts(out, "\nShared Elliptic curves: ");
489 OPENSSL_free(curves);
490 ncurves = SSL_get_shared_curve(s, -1);
491 for (i = 0; i < ncurves; i++)
495 nid = SSL_get_shared_curve(s, i);
496 cname = EC_curve_nid2nist(nid);
498 cname = OBJ_nid2sn(nid);
499 BIO_printf(out, "%s", cname);
502 BIO_puts(out, "NONE");
507 int ssl_print_tmp_key(BIO *out, SSL *s)
510 if (!SSL_get_server_tmp_key(s, &key))
512 BIO_puts(out, "Server Temp Key: ");
513 switch (EVP_PKEY_id(key))
516 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
520 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
525 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
528 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
530 cname = EC_curve_nid2nist(nid);
532 cname = OBJ_nid2sn(nid);
533 BIO_printf(out, "ECDH, %s, %d bits\n",
534 cname, EVP_PKEY_bits(key));
542 long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
543 int argi, long argl, long ret)
547 out=(BIO *)BIO_get_callback_arg(bio);
548 if (out == NULL) return(ret);
550 if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
552 BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
553 (void *)bio,argp,(unsigned long)argi,ret,ret);
554 BIO_dump(out,argp,(int)ret);
557 else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
559 BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
560 (void *)bio,argp,(unsigned long)argi,ret,ret);
561 BIO_dump(out,argp,(int)ret);
566 void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
571 w=where& ~SSL_ST_MASK;
573 if (w & SSL_ST_CONNECT) str="SSL_connect";
574 else if (w & SSL_ST_ACCEPT) str="SSL_accept";
575 else str="undefined";
577 if (where & SSL_CB_LOOP)
579 BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
581 else if (where & SSL_CB_ALERT)
583 str=(where & SSL_CB_READ)?"read":"write";
584 BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
586 SSL_alert_type_string_long(ret),
587 SSL_alert_desc_string_long(ret));
589 else if (where & SSL_CB_EXIT)
592 BIO_printf(bio_err,"%s:failed in %s\n",
593 str,SSL_state_string_long(s));
596 BIO_printf(bio_err,"%s:error in %s\n",
597 str,SSL_state_string_long(s));
603 void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
606 const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
608 str_write_p = write_p ? ">>>" : "<<<";
613 str_version = "SSL 2.0";
616 str_version = "SSL 3.0 ";
619 str_version = "TLS 1.0 ";
622 str_version = "TLS 1.1 ";
625 str_version = "TLS 1.2 ";
628 str_version = "DTLS 1.0 ";
631 str_version = "DTLS 1.0 (bad) ";
637 if (version == SSL2_VERSION)
639 str_details1 = "???";
643 switch (((const unsigned char*)buf)[0])
646 str_details1 = ", ERROR:";
647 str_details2 = " ???";
650 unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2];
655 str_details2 = " NO-CIPHER-ERROR";
658 str_details2 = " NO-CERTIFICATE-ERROR";
661 str_details2 = " BAD-CERTIFICATE-ERROR";
664 str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
671 str_details1 = ", CLIENT-HELLO";
674 str_details1 = ", CLIENT-MASTER-KEY";
677 str_details1 = ", CLIENT-FINISHED";
680 str_details1 = ", SERVER-HELLO";
683 str_details1 = ", SERVER-VERIFY";
686 str_details1 = ", SERVER-FINISHED";
689 str_details1 = ", REQUEST-CERTIFICATE";
692 str_details1 = ", CLIENT-CERTIFICATE";
698 if (version == SSL3_VERSION ||
699 version == TLS1_VERSION ||
700 version == TLS1_1_VERSION ||
701 version == TLS1_2_VERSION ||
702 version == DTLS1_VERSION ||
703 version == DTLS1_BAD_VER)
705 switch (content_type)
708 str_content_type = "ChangeCipherSpec";
711 str_content_type = "Alert";
714 str_content_type = "Handshake";
718 if (content_type == 21) /* Alert */
720 str_details1 = ", ???";
724 switch (((const unsigned char*)buf)[0])
727 str_details1 = ", warning";
730 str_details1 = ", fatal";
734 str_details2 = " ???";
735 switch (((const unsigned char*)buf)[1])
738 str_details2 = " close_notify";
741 str_details2 = " unexpected_message";
744 str_details2 = " bad_record_mac";
747 str_details2 = " decryption_failed";
750 str_details2 = " record_overflow";
753 str_details2 = " decompression_failure";
756 str_details2 = " handshake_failure";
759 str_details2 = " bad_certificate";
762 str_details2 = " unsupported_certificate";
765 str_details2 = " certificate_revoked";
768 str_details2 = " certificate_expired";
771 str_details2 = " certificate_unknown";
774 str_details2 = " illegal_parameter";
777 str_details2 = " unknown_ca";
780 str_details2 = " access_denied";
783 str_details2 = " decode_error";
786 str_details2 = " decrypt_error";
789 str_details2 = " export_restriction";
792 str_details2 = " protocol_version";
795 str_details2 = " insufficient_security";
798 str_details2 = " internal_error";
801 str_details2 = " user_canceled";
804 str_details2 = " no_renegotiation";
807 str_details2 = " unsupported_extension";
810 str_details2 = " certificate_unobtainable";
813 str_details2 = " unrecognized_name";
816 str_details2 = " bad_certificate_status_response";
819 str_details2 = " bad_certificate_hash_value";
822 str_details2 = " unknown_psk_identity";
828 if (content_type == 22) /* Handshake */
830 str_details1 = "???";
834 switch (((const unsigned char*)buf)[0])
837 str_details1 = ", HelloRequest";
840 str_details1 = ", ClientHello";
843 str_details1 = ", ServerHello";
846 str_details1 = ", HelloVerifyRequest";
849 str_details1 = ", Certificate";
852 str_details1 = ", ServerKeyExchange";
855 str_details1 = ", CertificateRequest";
858 str_details1 = ", ServerHelloDone";
861 str_details1 = ", CertificateVerify";
864 str_details1 = ", ClientKeyExchange";
867 str_details1 = ", Finished";
873 #ifndef OPENSSL_NO_HEARTBEATS
874 if (content_type == 24) /* Heartbeat */
876 str_details1 = ", Heartbeat";
880 switch (((const unsigned char*)buf)[0])
883 str_details1 = ", HeartbeatRequest";
886 str_details1 = ", HeartbeatResponse";
894 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);
900 BIO_printf(bio, " ");
906 for (i = 0; i < num; i++)
908 if (i % 16 == 0 && i > 0)
909 BIO_printf(bio, "\n ");
910 BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
913 BIO_printf(bio, " ...");
914 BIO_printf(bio, "\n");
916 (void)BIO_flush(bio);
919 void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
920 unsigned char *data, int len,
928 case TLSEXT_TYPE_server_name:
929 extname = "server name";
932 case TLSEXT_TYPE_max_fragment_length:
933 extname = "max fragment length";
936 case TLSEXT_TYPE_client_certificate_url:
937 extname = "client certificate URL";
940 case TLSEXT_TYPE_trusted_ca_keys:
941 extname = "trusted CA keys";
944 case TLSEXT_TYPE_truncated_hmac:
945 extname = "truncated HMAC";
948 case TLSEXT_TYPE_status_request:
949 extname = "status request";
952 case TLSEXT_TYPE_user_mapping:
953 extname = "user mapping";
956 case TLSEXT_TYPE_client_authz:
957 extname = "client authz";
960 case TLSEXT_TYPE_server_authz:
961 extname = "server authz";
964 case TLSEXT_TYPE_cert_type:
965 extname = "cert type";
968 case TLSEXT_TYPE_elliptic_curves:
969 extname = "elliptic curves";
972 case TLSEXT_TYPE_ec_point_formats:
973 extname = "EC point formats";
976 case TLSEXT_TYPE_srp:
980 case TLSEXT_TYPE_signature_algorithms:
981 extname = "signature algorithms";
984 case TLSEXT_TYPE_use_srtp:
985 extname = "use SRTP";
988 case TLSEXT_TYPE_heartbeat:
989 extname = "heartbeat";
992 case TLSEXT_TYPE_session_ticket:
993 extname = "session ticket";
996 case TLSEXT_TYPE_renegotiate:
997 extname = "renegotiation info";
1000 #ifdef TLSEXT_TYPE_opaque_prf_input
1001 case TLSEXT_TYPE_opaque_prf_input:
1002 extname = "opaque PRF input";
1005 #ifdef TLSEXT_TYPE_next_proto_neg
1006 case TLSEXT_TYPE_next_proto_neg:
1007 extname = "next protocol";
1012 extname = "unknown";
1017 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
1018 client_server ? "server": "client",
1019 extname, type, len);
1020 BIO_dump(bio, (char *)data, len);
1021 (void)BIO_flush(bio);
1024 int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
1026 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
1027 unsigned int length, resultlength;
1030 struct sockaddr_in s4;
1031 #if OPENSSL_USE_IPV6
1032 struct sockaddr_in6 s6;
1036 /* Initialize a random secret */
1037 if (!cookie_initialized)
1039 if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
1041 BIO_printf(bio_err,"error setting random cookie secret\n");
1044 cookie_initialized = 1;
1047 /* Read peer information */
1048 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1050 /* Create buffer with peer's address and port */
1052 switch (peer.sa.sa_family)
1055 length += sizeof(struct in_addr);
1056 length += sizeof(peer.s4.sin_port);
1058 #if OPENSSL_USE_IPV6
1060 length += sizeof(struct in6_addr);
1061 length += sizeof(peer.s6.sin6_port);
1068 buffer = OPENSSL_malloc(length);
1072 BIO_printf(bio_err,"out of memory\n");
1076 switch (peer.sa.sa_family)
1081 sizeof(peer.s4.sin_port));
1082 memcpy(buffer + sizeof(peer.s4.sin_port),
1084 sizeof(struct in_addr));
1086 #if OPENSSL_USE_IPV6
1090 sizeof(peer.s6.sin6_port));
1091 memcpy(buffer + sizeof(peer.s6.sin6_port),
1093 sizeof(struct in6_addr));
1101 /* Calculate HMAC of buffer using the secret */
1102 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1103 buffer, length, result, &resultlength);
1104 OPENSSL_free(buffer);
1106 memcpy(cookie, result, resultlength);
1107 *cookie_len = resultlength;
1112 int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
1114 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
1115 unsigned int length, resultlength;
1118 struct sockaddr_in s4;
1119 #if OPENSSL_USE_IPV6
1120 struct sockaddr_in6 s6;
1124 /* If secret isn't initialized yet, the cookie can't be valid */
1125 if (!cookie_initialized)
1128 /* Read peer information */
1129 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
1131 /* Create buffer with peer's address and port */
1133 switch (peer.sa.sa_family)
1136 length += sizeof(struct in_addr);
1137 length += sizeof(peer.s4.sin_port);
1139 #if OPENSSL_USE_IPV6
1141 length += sizeof(struct in6_addr);
1142 length += sizeof(peer.s6.sin6_port);
1149 buffer = OPENSSL_malloc(length);
1153 BIO_printf(bio_err,"out of memory\n");
1157 switch (peer.sa.sa_family)
1162 sizeof(peer.s4.sin_port));
1163 memcpy(buffer + sizeof(peer.s4.sin_port),
1165 sizeof(struct in_addr));
1167 #if OPENSSL_USE_IPV6
1171 sizeof(peer.s6.sin6_port));
1172 memcpy(buffer + sizeof(peer.s6.sin6_port),
1174 sizeof(struct in6_addr));
1182 /* Calculate HMAC of buffer using the secret */
1183 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1184 buffer, length, result, &resultlength);
1185 OPENSSL_free(buffer);
1187 if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)
1193 /* Example of extended certificate handling. Where the standard support
1194 * of one certificate per algorithm is not sufficient an application
1195 * can decide which certificate(s) to use at runtime based on whatever
1196 * criteria it deems appropriate.
1199 /* Linked list of certificates, keys and chains */
1200 struct ssl_excert_st
1203 const char *certfile;
1205 const char *keyfile;
1206 const char *chainfile;
1209 STACK_OF(X509) *chain;
1211 struct ssl_excert_st *next, *prev;
1220 struct chain_flags chain_flags_list[] =
1222 {CERT_PKEY_VALID, "Overall Validity"},
1223 {CERT_PKEY_SIGN, "Sign with EE key"},
1224 {CERT_PKEY_EE_SIGNATURE, "EE signature"},
1225 {CERT_PKEY_CA_SIGNATURE, "CA signature"},
1226 {CERT_PKEY_EE_PARAM, "EE key parameters"},
1227 {CERT_PKEY_CA_PARAM, "CA key parameters"},
1228 {CERT_PKEY_EXPLICIT_SIGN, "Explicity sign with EE key"},
1229 {CERT_PKEY_ISSUER_NAME, "Issuer Name"},
1230 {CERT_PKEY_CERT_TYPE, "Certificate Type"},
1235 static void print_chain_flags(BIO *out, int flags)
1237 struct chain_flags *ctmp = chain_flags_list;
1240 BIO_printf(out, "\t%s: %s\n", ctmp->name,
1241 flags & ctmp->flag ? "OK" : "NOT OK");
1246 /* Very basic selection callback: just use any certificate chain
1247 * reported as valid. More sophisticated could prioritise according
1250 static int set_cert_cb(SSL *ssl, void *arg)
1253 SSL_EXCERT *exc = arg;
1254 SSL_certs_clear(ssl);
1259 /* Go to end of list and traverse backwards since we prepend
1260 * newer entries this retains the original order.
1270 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
1271 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
1272 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
1274 BIO_puts(bio_err, "\n");
1276 print_chain_flags(bio_err, rv);
1277 if (rv & CERT_PKEY_VALID)
1279 SSL_use_certificate(ssl, exc->cert);
1280 SSL_use_PrivateKey(ssl, exc->key);
1281 /* NB: we wouldn't normally do this as it is
1282 * not efficient building chains on each connection
1283 * better to cache the chain in advance.
1285 if (exc->build_chain)
1287 if (!SSL_build_cert_chain(ssl, 0))
1290 else if (exc->chain)
1291 SSL_set1_chain(ssl, exc->chain);
1298 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
1300 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
1303 static int ssl_excert_prepend(SSL_EXCERT **pexc)
1306 exc = OPENSSL_malloc(sizeof(SSL_EXCERT));
1309 exc->certfile = NULL;
1310 exc->keyfile = NULL;
1311 exc->chainfile = NULL;
1316 exc->build_chain = 0;
1323 exc->certform = exc->next->certform;
1324 exc->keyform = exc->next->keyform;
1325 exc->next->prev = exc;
1329 exc->certform = FORMAT_PEM;
1330 exc->keyform = FORMAT_PEM;
1336 void ssl_excert_free(SSL_EXCERT *exc)
1342 X509_free(exc->cert);
1344 EVP_PKEY_free(exc->key);
1346 sk_X509_pop_free(exc->chain, X509_free);
1353 int load_excert(SSL_EXCERT **pexc, BIO *err)
1355 SSL_EXCERT *exc = *pexc;
1358 /* If nothing in list, free and set to NULL */
1359 if (!exc->certfile && !exc->next)
1361 ssl_excert_free(exc);
1365 for(; exc; exc=exc->next)
1369 BIO_printf(err, "Missing filename\n");
1372 exc->cert = load_cert(err, exc->certfile, exc->certform,
1373 NULL, NULL, "Server Certificate");
1377 exc->keyfile = exc->certfile;
1378 exc->key = load_key(err, exc->certfile, exc->certform, 0,
1379 NULL, NULL, "Server Certificate");
1384 exc->chain = load_certs(err,
1385 exc->chainfile, FORMAT_PEM,
1388 if (!exc->chainfile)
1396 int args_excert(char ***pargs, int *pargc,
1397 int *badarg, BIO *err, SSL_EXCERT **pexc)
1399 char *arg = **pargs, *argn = (*pargs)[1];
1400 SSL_EXCERT *exc = *pexc;
1404 if (ssl_excert_prepend(&exc))
1408 BIO_printf(err, "Error initialising xcert\n");
1413 if (strcmp(arg, "-xcert") == 0)
1420 if (exc->certfile && !ssl_excert_prepend(&exc))
1422 BIO_printf(err, "Error adding xcert\n");
1426 exc->certfile = argn;
1428 else if (strcmp(arg,"-xkey") == 0)
1437 BIO_printf(err, "Key already specified\n");
1441 exc->keyfile = argn;
1443 else if (strcmp(arg,"-xchain") == 0)
1452 BIO_printf(err, "Chain already specified\n");
1456 exc->chainfile = argn;
1458 else if (strcmp(arg,"-xchain_build") == 0)
1461 exc->build_chain = 1;
1463 else if (strcmp(arg,"-xcertform") == 0)
1470 exc->certform = str2fmt(argn);
1472 else if (strcmp(arg,"-xkeyform") == 0)
1479 exc->keyform = str2fmt(argn);
1494 ERR_print_errors(err);
1495 ssl_excert_free(exc);
1500 int args_ssl(char ***pargs, int *pargc, SSL_CONF_CTX *cctx,
1501 int *badarg, BIO *err, STACK_OF(OPENSSL_STRING) **pstr)
1503 char *arg = **pargs, *argn = (*pargs)[1];
1506 /* Attempt to run SSL configuration command */
1507 rv = SSL_CONF_cmd_argv(cctx, pargc, pargs);
1508 /* If parameter not recognised just return */
1511 /* see if missing argument error */
1514 BIO_printf(err, "%s needs an argument\n", arg);
1518 /* Check for some other error */
1521 BIO_printf(err, "Error with command: \"%s %s\"\n",
1522 arg, argn ? argn : "");
1526 /* Store command and argument */
1527 /* If only one argument processed store value as NULL */
1531 *pstr = sk_OPENSSL_STRING_new_null();
1532 if (!*pstr || !sk_OPENSSL_STRING_push(*pstr, arg) ||
1533 !sk_OPENSSL_STRING_push(*pstr, argn))
1535 BIO_puts(err, "Memory allocation failure\n");
1541 ERR_print_errors(err);
1546 int args_ssl_call(SSL_CTX *ctx, BIO *err, SSL_CONF_CTX *cctx,
1547 STACK_OF(OPENSSL_STRING) *str, int no_ecdhe, int no_jpake)
1550 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1551 for (i = 0; i < sk_OPENSSL_STRING_num(str); i+= 2)
1553 const char *param = sk_OPENSSL_STRING_value(str, i);
1554 const char *value = sk_OPENSSL_STRING_value(str, i + 1);
1555 /* If no_ecdhe or named curve already specified don't need
1558 if (!no_ecdhe && !strcmp(param, "-named_curve"))
1560 #ifndef OPENSSL_NO_JPAKE
1561 if (!no_jpake && !strcmp(param, "-cipher"))
1563 BIO_puts(err, "JPAKE sets cipher to PSK\n");
1567 if (SSL_CONF_cmd(cctx, param, value) <= 0)
1569 BIO_printf(err, "Error with command: \"%s %s\"\n",
1570 param, value ? value : "");
1571 ERR_print_errors(err);
1575 /* This is a special case to keep existing s_server functionality:
1576 * if we don't have any curve specified *and* we haven't disabled
1577 * ECDHE then use P-256.
1581 if (SSL_CONF_cmd(cctx, "-named_curve", "P-256") <= 0)
1583 BIO_puts(err, "Error setting EC curve\n");
1584 ERR_print_errors(err);
1588 #ifndef OPENSSL_NO_JPAKE
1591 if (SSL_CONF_cmd(cctx, "-cipher", "PSK") <= 0)
1593 BIO_puts(err, "Error setting cipher to PSK\n");
1594 ERR_print_errors(err);
1602 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1606 for (i = 0; i < sk_X509_CRL_num(crls); i++)
1608 crl = sk_X509_CRL_value(crls, i);
1609 X509_STORE_add_crl(st, crl);
1614 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1617 st = SSL_CTX_get_cert_store(ctx);
1618 add_crls_store(st, crls);
1620 store_setup_crl_download(st);
1624 int ssl_load_stores(SSL_CTX *ctx,
1625 const char *vfyCApath, const char *vfyCAfile,
1626 const char *chCApath, const char *chCAfile,
1627 STACK_OF(X509_CRL) *crls, int crl_download)
1629 X509_STORE *vfy = NULL, *ch = NULL;
1631 if (vfyCApath || vfyCAfile)
1633 vfy = X509_STORE_new();
1634 if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
1636 add_crls_store(vfy, crls);
1637 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1639 store_setup_crl_download(vfy);
1641 if (chCApath || chCAfile)
1643 ch = X509_STORE_new();
1644 if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
1646 /*X509_STORE_set_verify_cb(ch, verify_callback);*/
1647 SSL_CTX_set1_chain_cert_store(ctx, ch);
1652 X509_STORE_free(vfy);
1654 X509_STORE_free(ch);