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)
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);
288 static int do_print_sigalgs(BIO *out, SSL *s, int client, int shared)
292 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL,
295 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
300 BIO_puts(out, "Shared ");
303 BIO_puts(out, "Requested ");
304 BIO_puts(out, "Signature Algorithms: ");
305 for (i = 0; i < nsig; i++)
307 int hash_nid, sign_nid;
308 unsigned char rhash, rsign;
309 const char *sstr = NULL;
311 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
314 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
318 if (sign_nid == EVP_PKEY_RSA)
320 else if(sign_nid == EVP_PKEY_DSA)
322 else if(sign_nid == EVP_PKEY_EC)
325 BIO_printf(out,"%s+", sstr);
327 BIO_printf(out,"0x%02X+", (int)rsign);
328 if (hash_nid != NID_undef)
329 BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
331 BIO_printf(out,"0x%02X", (int)rhash);
337 int ssl_print_sigalgs(BIO *out, SSL *s, int client)
339 do_print_sigalgs(out, s, client, 0);
340 do_print_sigalgs(out, s, client, 1);
344 int ssl_print_curves(BIO *out, SSL *s)
346 int i, ncurves, *curves, nid;
348 ncurves = SSL_get1_curves(s, NULL);
351 curves = OPENSSL_malloc(ncurves * sizeof(int));
352 SSL_get1_curves(s, curves);
354 BIO_puts(out, "Supported Elliptic Curves: ");
355 for (i = 0; i < ncurves; i++)
360 /* If unrecognised print out hex version */
361 if (nid & TLSEXT_nid_unknown)
362 BIO_printf(out, "0x%04X", nid & 0xFFFF);
365 /* Use NIST name for curve if it exists */
366 cname = EC_curve_nid2nist(nid);
368 cname = OBJ_nid2sn(nid);
369 BIO_printf(out, "%s", cname);
372 BIO_puts(out, "\nShared Elliptic curves: ");
373 OPENSSL_free(curves);
374 ncurves = SSL_get_shared_curve(s, -1);
375 for (i = 0; i < ncurves; i++)
379 nid = SSL_get_shared_curve(s, i);
380 cname = EC_curve_nid2nist(nid);
382 cname = OBJ_nid2sn(nid);
383 BIO_printf(out, "%s", cname);
386 BIO_puts(out, "NONE");
392 long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
393 int argi, long argl, long ret)
397 out=(BIO *)BIO_get_callback_arg(bio);
398 if (out == NULL) return(ret);
400 if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
402 BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
403 (void *)bio,argp,(unsigned long)argi,ret,ret);
404 BIO_dump(out,argp,(int)ret);
407 else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
409 BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
410 (void *)bio,argp,(unsigned long)argi,ret,ret);
411 BIO_dump(out,argp,(int)ret);
416 void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
421 w=where& ~SSL_ST_MASK;
423 if (w & SSL_ST_CONNECT) str="SSL_connect";
424 else if (w & SSL_ST_ACCEPT) str="SSL_accept";
425 else str="undefined";
427 if (where & SSL_CB_LOOP)
429 BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
431 else if (where & SSL_CB_ALERT)
433 str=(where & SSL_CB_READ)?"read":"write";
434 BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
436 SSL_alert_type_string_long(ret),
437 SSL_alert_desc_string_long(ret));
439 else if (where & SSL_CB_EXIT)
442 BIO_printf(bio_err,"%s:failed in %s\n",
443 str,SSL_state_string_long(s));
446 BIO_printf(bio_err,"%s:error in %s\n",
447 str,SSL_state_string_long(s));
453 void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
456 const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
458 str_write_p = write_p ? ">>>" : "<<<";
463 str_version = "SSL 2.0";
466 str_version = "SSL 3.0 ";
469 str_version = "TLS 1.0 ";
472 str_version = "TLS 1.1 ";
475 str_version = "TLS 1.2 ";
478 str_version = "DTLS 1.0 ";
481 str_version = "DTLS 1.0 (bad) ";
487 if (version == SSL2_VERSION)
489 str_details1 = "???";
493 switch (((const unsigned char*)buf)[0])
496 str_details1 = ", ERROR:";
497 str_details2 = " ???";
500 unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2];
505 str_details2 = " NO-CIPHER-ERROR";
508 str_details2 = " NO-CERTIFICATE-ERROR";
511 str_details2 = " BAD-CERTIFICATE-ERROR";
514 str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
521 str_details1 = ", CLIENT-HELLO";
524 str_details1 = ", CLIENT-MASTER-KEY";
527 str_details1 = ", CLIENT-FINISHED";
530 str_details1 = ", SERVER-HELLO";
533 str_details1 = ", SERVER-VERIFY";
536 str_details1 = ", SERVER-FINISHED";
539 str_details1 = ", REQUEST-CERTIFICATE";
542 str_details1 = ", CLIENT-CERTIFICATE";
548 if (version == SSL3_VERSION ||
549 version == TLS1_VERSION ||
550 version == DTLS1_VERSION ||
551 version == DTLS1_BAD_VER)
553 switch (content_type)
556 str_content_type = "ChangeCipherSpec";
559 str_content_type = "Alert";
562 str_content_type = "Handshake";
566 if (content_type == 21) /* Alert */
568 str_details1 = ", ???";
572 switch (((const unsigned char*)buf)[0])
575 str_details1 = ", warning";
578 str_details1 = ", fatal";
582 str_details2 = " ???";
583 switch (((const unsigned char*)buf)[1])
586 str_details2 = " close_notify";
589 str_details2 = " unexpected_message";
592 str_details2 = " bad_record_mac";
595 str_details2 = " decryption_failed";
598 str_details2 = " record_overflow";
601 str_details2 = " decompression_failure";
604 str_details2 = " handshake_failure";
607 str_details2 = " bad_certificate";
610 str_details2 = " unsupported_certificate";
613 str_details2 = " certificate_revoked";
616 str_details2 = " certificate_expired";
619 str_details2 = " certificate_unknown";
622 str_details2 = " illegal_parameter";
625 str_details2 = " unknown_ca";
628 str_details2 = " access_denied";
631 str_details2 = " decode_error";
634 str_details2 = " decrypt_error";
637 str_details2 = " export_restriction";
640 str_details2 = " protocol_version";
643 str_details2 = " insufficient_security";
646 str_details2 = " internal_error";
649 str_details2 = " user_canceled";
652 str_details2 = " no_renegotiation";
655 str_details2 = " unsupported_extension";
658 str_details2 = " certificate_unobtainable";
661 str_details2 = " unrecognized_name";
664 str_details2 = " bad_certificate_status_response";
667 str_details2 = " bad_certificate_hash_value";
670 str_details2 = " unknown_psk_identity";
676 if (content_type == 22) /* Handshake */
678 str_details1 = "???";
682 switch (((const unsigned char*)buf)[0])
685 str_details1 = ", HelloRequest";
688 str_details1 = ", ClientHello";
691 str_details1 = ", ServerHello";
694 str_details1 = ", HelloVerifyRequest";
697 str_details1 = ", Certificate";
700 str_details1 = ", ServerKeyExchange";
703 str_details1 = ", CertificateRequest";
706 str_details1 = ", ServerHelloDone";
709 str_details1 = ", CertificateVerify";
712 str_details1 = ", ClientKeyExchange";
715 str_details1 = ", Finished";
721 #ifndef OPENSSL_NO_HEARTBEATS
722 if (content_type == 24) /* Heartbeat */
724 str_details1 = ", Heartbeat";
728 switch (((const unsigned char*)buf)[0])
731 str_details1 = ", HeartbeatRequest";
734 str_details1 = ", HeartbeatResponse";
742 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);
748 BIO_printf(bio, " ");
754 for (i = 0; i < num; i++)
756 if (i % 16 == 0 && i > 0)
757 BIO_printf(bio, "\n ");
758 BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
761 BIO_printf(bio, " ...");
762 BIO_printf(bio, "\n");
764 (void)BIO_flush(bio);
767 void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
768 unsigned char *data, int len,
776 case TLSEXT_TYPE_server_name:
777 extname = "server name";
780 case TLSEXT_TYPE_max_fragment_length:
781 extname = "max fragment length";
784 case TLSEXT_TYPE_client_certificate_url:
785 extname = "client certificate URL";
788 case TLSEXT_TYPE_trusted_ca_keys:
789 extname = "trusted CA keys";
792 case TLSEXT_TYPE_truncated_hmac:
793 extname = "truncated HMAC";
796 case TLSEXT_TYPE_status_request:
797 extname = "status request";
800 case TLSEXT_TYPE_user_mapping:
801 extname = "user mapping";
804 case TLSEXT_TYPE_client_authz:
805 extname = "client authz";
808 case TLSEXT_TYPE_server_authz:
809 extname = "server authz";
812 case TLSEXT_TYPE_cert_type:
813 extname = "cert type";
816 case TLSEXT_TYPE_elliptic_curves:
817 extname = "elliptic curves";
820 case TLSEXT_TYPE_ec_point_formats:
821 extname = "EC point formats";
824 case TLSEXT_TYPE_srp:
828 case TLSEXT_TYPE_signature_algorithms:
829 extname = "signature algorithms";
832 case TLSEXT_TYPE_use_srtp:
833 extname = "use SRTP";
836 case TLSEXT_TYPE_heartbeat:
837 extname = "heartbeat";
840 case TLSEXT_TYPE_session_ticket:
841 extname = "session ticket";
844 case TLSEXT_TYPE_renegotiate:
845 extname = "renegotiation info";
848 #ifdef TLSEXT_TYPE_opaque_prf_input
849 case TLSEXT_TYPE_opaque_prf_input:
850 extname = "opaque PRF input";
853 #ifdef TLSEXT_TYPE_next_proto_neg
854 case TLSEXT_TYPE_next_proto_neg:
855 extname = "next protocol";
865 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
866 client_server ? "server": "client",
868 BIO_dump(bio, (char *)data, len);
869 (void)BIO_flush(bio);
872 int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
874 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
875 unsigned int length, resultlength;
878 struct sockaddr_in s4;
880 struct sockaddr_in6 s6;
884 /* Initialize a random secret */
885 if (!cookie_initialized)
887 if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
889 BIO_printf(bio_err,"error setting random cookie secret\n");
892 cookie_initialized = 1;
895 /* Read peer information */
896 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
898 /* Create buffer with peer's address and port */
900 switch (peer.sa.sa_family)
903 length += sizeof(struct in_addr);
904 length += sizeof(peer.s4.sin_port);
908 length += sizeof(struct in6_addr);
909 length += sizeof(peer.s6.sin6_port);
916 buffer = OPENSSL_malloc(length);
920 BIO_printf(bio_err,"out of memory\n");
924 switch (peer.sa.sa_family)
929 sizeof(peer.s4.sin_port));
930 memcpy(buffer + sizeof(peer.s4.sin_port),
932 sizeof(struct in_addr));
938 sizeof(peer.s6.sin6_port));
939 memcpy(buffer + sizeof(peer.s6.sin6_port),
941 sizeof(struct in6_addr));
949 /* Calculate HMAC of buffer using the secret */
950 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
951 buffer, length, result, &resultlength);
952 OPENSSL_free(buffer);
954 memcpy(cookie, result, resultlength);
955 *cookie_len = resultlength;
960 int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
962 unsigned char *buffer, result[EVP_MAX_MD_SIZE];
963 unsigned int length, resultlength;
966 struct sockaddr_in s4;
968 struct sockaddr_in6 s6;
972 /* If secret isn't initialized yet, the cookie can't be valid */
973 if (!cookie_initialized)
976 /* Read peer information */
977 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
979 /* Create buffer with peer's address and port */
981 switch (peer.sa.sa_family)
984 length += sizeof(struct in_addr);
985 length += sizeof(peer.s4.sin_port);
989 length += sizeof(struct in6_addr);
990 length += sizeof(peer.s6.sin6_port);
997 buffer = OPENSSL_malloc(length);
1001 BIO_printf(bio_err,"out of memory\n");
1005 switch (peer.sa.sa_family)
1010 sizeof(peer.s4.sin_port));
1011 memcpy(buffer + sizeof(peer.s4.sin_port),
1013 sizeof(struct in_addr));
1015 #if OPENSSL_USE_IPV6
1019 sizeof(peer.s6.sin6_port));
1020 memcpy(buffer + sizeof(peer.s6.sin6_port),
1022 sizeof(struct in6_addr));
1030 /* Calculate HMAC of buffer using the secret */
1031 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
1032 buffer, length, result, &resultlength);
1033 OPENSSL_free(buffer);
1035 if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)
1041 /* Example of extended certificate handling. Where the standard support
1042 * of one certificate per algorithm is not sufficient an application
1043 * can decide which certificate(s) to use at runtime based on whatever
1044 * criteria it deems appropriate.
1047 /* Linked list of certificates, keys and chains */
1048 struct ssl_excert_st
1051 const char *certfile;
1053 const char *keyfile;
1054 const char *chainfile;
1057 STACK_OF(X509) *chain;
1058 struct ssl_excert_st *next, *prev;
1061 /* Very basic selection callback: just use any certificate chain
1062 * reported as valid. More sophisticated could prioritise according
1065 static int set_cert_cb(SSL *ssl, void *arg)
1067 SSL_EXCERT *exc = arg;
1068 SSL_certs_clear(ssl);
1073 /* Go to end of list and traverse backwards since we prepend
1074 * newer entries this retains the original order.
1081 if (SSL_check_chain(ssl, exc->cert, exc->key, exc->chain))
1083 SSL_use_certificate(ssl, exc->cert);
1084 SSL_use_PrivateKey(ssl, exc->key);
1086 SSL_set1_chain(ssl, exc->chain);
1093 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
1095 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
1098 static int ssl_excert_prepend(SSL_EXCERT **pexc)
1101 exc = OPENSSL_malloc(sizeof(SSL_EXCERT));
1104 exc->certfile = NULL;
1105 exc->keyfile = NULL;
1106 exc->chainfile = NULL;
1117 exc->certform = exc->next->certform;
1118 exc->keyform = exc->next->keyform;
1119 exc->next->prev = exc;
1123 exc->certform = FORMAT_PEM;
1124 exc->keyform = FORMAT_PEM;
1130 void ssl_excert_free(SSL_EXCERT *exc)
1136 X509_free(exc->cert);
1138 EVP_PKEY_free(exc->key);
1140 sk_X509_pop_free(exc->chain, X509_free);
1147 int load_excert(SSL_EXCERT **pexc, BIO *err)
1149 SSL_EXCERT *exc = *pexc;
1152 /* If nothing in list, free and set to NULL */
1153 if (!exc->certfile && !exc->next)
1155 ssl_excert_free(exc);
1159 for(; exc; exc=exc->next)
1163 BIO_printf(err, "Missing filename\n");
1166 exc->cert = load_cert(err, exc->certfile, exc->certform,
1167 NULL, NULL, "Server Certificate");
1171 exc->keyfile = exc->certfile;
1172 exc->key = load_key(err, exc->certfile, exc->certform, 0,
1173 NULL, NULL, "Server Certificate");
1178 exc->chain = load_certs(err,
1179 exc->chainfile, FORMAT_PEM,
1182 if (!exc->chainfile)
1190 int args_excert(char ***pargs, int *pargc,
1191 int *badarg, BIO *err, SSL_EXCERT **pexc)
1193 char *arg = **pargs, *argn = (*pargs)[1];
1194 SSL_EXCERT *exc = *pexc;
1197 if (ssl_excert_prepend(&exc))
1201 BIO_printf(err, "Error initialising xcert\n");
1206 if (strcmp(arg, "-xcert") == 0)
1213 if (exc->certfile && !ssl_excert_prepend(&exc))
1215 BIO_printf(err, "Error adding xcert\n");
1219 exc->certfile = argn;
1221 else if (strcmp(arg,"-xkey") == 0)
1230 BIO_printf(err, "Key already specified\n");
1234 exc->keyfile = argn;
1236 else if (strcmp(arg,"-xchain") == 0)
1245 BIO_printf(err, "Chain already specified\n");
1249 exc->chainfile = argn;
1251 else if (strcmp(arg,"-xcertform") == 0)
1258 exc->certform = str2fmt(argn);
1260 else if (strcmp(arg,"-xkeyform") == 0)
1267 exc->keyform = str2fmt(argn);
1282 ERR_print_errors(err);
1283 ssl_excert_free(exc);