2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 /* callback functions used by s_client, s_server, and s_time */
13 #include <string.h> /* for memcpy() and strcmp() */
17 #include <openssl/err.h>
18 #include <openssl/rand.h>
19 #include <openssl/x509.h>
20 #include <openssl/ssl.h>
21 #include <openssl/bn.h>
23 # include <openssl/dh.h>
27 #define COOKIE_SECRET_LENGTH 16
29 VERIFY_CB_ARGS verify_args = { 0, 0, X509_V_OK, 0 };
31 #ifndef OPENSSL_NO_SOCK
32 static unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
33 static int cookie_initialized = 0;
36 static const char *lookup(int val, const STRINT_PAIR* list, const char* def)
38 for ( ; list->name; ++list)
39 if (list->retval == val)
44 int verify_callback(int ok, X509_STORE_CTX *ctx)
49 err_cert = X509_STORE_CTX_get_current_cert(ctx);
50 err = X509_STORE_CTX_get_error(ctx);
51 depth = X509_STORE_CTX_get_error_depth(ctx);
53 if (!verify_args.quiet || !ok) {
54 BIO_printf(bio_err, "depth=%d ", depth);
56 X509_NAME_print_ex(bio_err,
57 X509_get_subject_name(err_cert),
59 BIO_puts(bio_err, "\n");
61 BIO_puts(bio_err, "<no cert>\n");
64 BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
65 X509_verify_cert_error_string(err));
66 if (verify_args.depth >= depth) {
67 if (!verify_args.return_error)
69 verify_args.error = err;
72 verify_args.error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
76 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
77 BIO_puts(bio_err, "issuer= ");
78 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
80 BIO_puts(bio_err, "\n");
82 case X509_V_ERR_CERT_NOT_YET_VALID:
83 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
84 BIO_printf(bio_err, "notBefore=");
85 ASN1_TIME_print(bio_err, X509_get_notBefore(err_cert));
86 BIO_printf(bio_err, "\n");
88 case X509_V_ERR_CERT_HAS_EXPIRED:
89 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
90 BIO_printf(bio_err, "notAfter=");
91 ASN1_TIME_print(bio_err, X509_get_notAfter(err_cert));
92 BIO_printf(bio_err, "\n");
94 case X509_V_ERR_NO_EXPLICIT_POLICY:
95 if (!verify_args.quiet)
99 if (err == X509_V_OK && ok == 2 && !verify_args.quiet)
101 if (ok && !verify_args.quiet)
102 BIO_printf(bio_err, "verify return:%d\n", ok);
106 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
108 if (cert_file != NULL) {
109 if (SSL_CTX_use_certificate_file(ctx, cert_file,
110 SSL_FILETYPE_PEM) <= 0) {
111 BIO_printf(bio_err, "unable to get certificate from '%s'\n",
113 ERR_print_errors(bio_err);
116 if (key_file == NULL)
117 key_file = cert_file;
118 if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
119 BIO_printf(bio_err, "unable to get private key from '%s'\n",
121 ERR_print_errors(bio_err);
126 * If we are using DSA, we can copy the parameters from the private
131 * Now we know that a key and cert have been set against the SSL
134 if (!SSL_CTX_check_private_key(ctx)) {
136 "Private key does not match the certificate public key\n");
143 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
144 STACK_OF(X509) *chain, int build_chain)
146 int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
149 if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
150 BIO_printf(bio_err, "error setting certificate\n");
151 ERR_print_errors(bio_err);
155 if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
156 BIO_printf(bio_err, "error setting private key\n");
157 ERR_print_errors(bio_err);
162 * Now we know that a key and cert have been set against the SSL context
164 if (!SSL_CTX_check_private_key(ctx)) {
166 "Private key does not match the certificate public key\n");
169 if (chain && !SSL_CTX_set1_chain(ctx, chain)) {
170 BIO_printf(bio_err, "error setting certificate chain\n");
171 ERR_print_errors(bio_err);
174 if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) {
175 BIO_printf(bio_err, "error building certificate chain\n");
176 ERR_print_errors(bio_err);
182 static STRINT_PAIR cert_type_list[] = {
183 {"RSA sign", TLS_CT_RSA_SIGN},
184 {"DSA sign", TLS_CT_DSS_SIGN},
185 {"RSA fixed DH", TLS_CT_RSA_FIXED_DH},
186 {"DSS fixed DH", TLS_CT_DSS_FIXED_DH},
187 {"ECDSA sign", TLS_CT_ECDSA_SIGN},
188 {"RSA fixed ECDH", TLS_CT_RSA_FIXED_ECDH},
189 {"ECDSA fixed ECDH", TLS_CT_ECDSA_FIXED_ECDH},
190 {"GOST01 Sign", TLS_CT_GOST01_SIGN},
194 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
196 const unsigned char *p;
198 int cert_type_num = SSL_get0_certificate_types(s, &p);
201 BIO_puts(bio, "Client Certificate Types: ");
202 for (i = 0; i < cert_type_num; i++) {
203 unsigned char cert_type = p[i];
204 const char *cname = lookup((int)cert_type, cert_type_list, NULL);
209 BIO_puts(bio, cname);
211 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
216 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
219 client = SSL_is_server(s) ? 0 : 1;
221 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
223 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
228 BIO_puts(out, "Shared ");
231 BIO_puts(out, "Requested ");
232 BIO_puts(out, "Signature Algorithms: ");
233 for (i = 0; i < nsig; i++) {
234 int hash_nid, sign_nid;
235 unsigned char rhash, rsign;
236 const char *sstr = NULL;
238 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
241 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
244 if (sign_nid == EVP_PKEY_RSA)
246 else if (sign_nid == EVP_PKEY_DSA)
248 else if (sign_nid == EVP_PKEY_EC)
251 BIO_printf(out, "%s+", sstr);
253 BIO_printf(out, "0x%02X+", (int)rsign);
254 if (hash_nid != NID_undef)
255 BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
257 BIO_printf(out, "0x%02X", (int)rhash);
263 int ssl_print_sigalgs(BIO *out, SSL *s)
266 if (!SSL_is_server(s))
267 ssl_print_client_cert_types(out, s);
268 do_print_sigalgs(out, s, 0);
269 do_print_sigalgs(out, s, 1);
270 if (SSL_get_peer_signature_nid(s, &mdnid))
271 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
275 #ifndef OPENSSL_NO_EC
276 int ssl_print_point_formats(BIO *out, SSL *s)
279 const char *pformats;
280 nformats = SSL_get0_ec_point_formats(s, &pformats);
283 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
284 for (i = 0; i < nformats; i++, pformats++) {
288 case TLSEXT_ECPOINTFORMAT_uncompressed:
289 BIO_puts(out, "uncompressed");
292 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
293 BIO_puts(out, "ansiX962_compressed_prime");
296 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
297 BIO_puts(out, "ansiX962_compressed_char2");
301 BIO_printf(out, "unknown(%d)", (int)*pformats);
310 int ssl_print_curves(BIO *out, SSL *s, int noshared)
312 int i, ncurves, *curves, nid;
315 ncurves = SSL_get1_curves(s, NULL);
318 curves = app_malloc(ncurves * sizeof(int), "curves to print");
319 SSL_get1_curves(s, curves);
321 BIO_puts(out, "Supported Elliptic Curves: ");
322 for (i = 0; i < ncurves; i++) {
326 /* If unrecognised print out hex version */
327 if (nid & TLSEXT_nid_unknown)
328 BIO_printf(out, "0x%04X", nid & 0xFFFF);
330 /* Use NIST name for curve if it exists */
331 cname = EC_curve_nid2nist(nid);
333 cname = OBJ_nid2sn(nid);
334 BIO_printf(out, "%s", cname);
337 OPENSSL_free(curves);
342 BIO_puts(out, "\nShared Elliptic curves: ");
343 ncurves = SSL_get_shared_curve(s, -1);
344 for (i = 0; i < ncurves; i++) {
347 nid = SSL_get_shared_curve(s, i);
348 cname = EC_curve_nid2nist(nid);
350 cname = OBJ_nid2sn(nid);
351 BIO_printf(out, "%s", cname);
354 BIO_puts(out, "NONE");
359 int ssl_print_tmp_key(BIO *out, SSL *s)
362 if (!SSL_get_server_tmp_key(s, &key))
364 BIO_puts(out, "Server Temp Key: ");
365 switch (EVP_PKEY_id(key)) {
367 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
371 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
373 #ifndef OPENSSL_NO_EC
376 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
379 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
381 cname = EC_curve_nid2nist(nid);
383 cname = OBJ_nid2sn(nid);
384 BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
392 long 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);
401 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, (void *)argp, (unsigned long)argi, ret, ret);
404 BIO_dump(out, argp, (int)ret);
406 } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
407 BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
408 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
409 BIO_dump(out, argp, (int)ret);
414 void apps_ssl_info_callback(const SSL *s, int where, int ret)
419 w = where & ~SSL_ST_MASK;
421 if (w & SSL_ST_CONNECT)
423 else if (w & SSL_ST_ACCEPT)
428 if (where & SSL_CB_LOOP) {
429 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
430 } else if (where & SSL_CB_ALERT) {
431 str = (where & SSL_CB_READ) ? "read" : "write";
432 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
434 SSL_alert_type_string_long(ret),
435 SSL_alert_desc_string_long(ret));
436 } else if (where & SSL_CB_EXIT) {
438 BIO_printf(bio_err, "%s:failed in %s\n",
439 str, SSL_state_string_long(s));
441 BIO_printf(bio_err, "%s:error in %s\n",
442 str, SSL_state_string_long(s));
447 static STRINT_PAIR ssl_versions[] = {
448 {"SSL 3.0", SSL3_VERSION},
449 {"TLS 1.0", TLS1_VERSION},
450 {"TLS 1.1", TLS1_1_VERSION},
451 {"TLS 1.2", TLS1_2_VERSION},
452 {"DTLS 1.0", DTLS1_VERSION},
453 {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
456 static STRINT_PAIR alert_types[] = {
457 {" close_notify", 0},
458 {" unexpected_message", 10},
459 {" bad_record_mac", 20},
460 {" decryption_failed", 21},
461 {" record_overflow", 22},
462 {" decompression_failure", 30},
463 {" handshake_failure", 40},
464 {" bad_certificate", 42},
465 {" unsupported_certificate", 43},
466 {" certificate_revoked", 44},
467 {" certificate_expired", 45},
468 {" certificate_unknown", 46},
469 {" illegal_parameter", 47},
471 {" access_denied", 49},
472 {" decode_error", 50},
473 {" decrypt_error", 51},
474 {" export_restriction", 60},
475 {" protocol_version", 70},
476 {" insufficient_security", 71},
477 {" internal_error", 80},
478 {" user_canceled", 90},
479 {" no_renegotiation", 100},
480 {" unsupported_extension", 110},
481 {" certificate_unobtainable", 111},
482 {" unrecognized_name", 112},
483 {" bad_certificate_status_response", 113},
484 {" bad_certificate_hash_value", 114},
485 {" unknown_psk_identity", 115},
489 static STRINT_PAIR handshakes[] = {
490 {", HelloRequest", 0},
491 {", ClientHello", 1},
492 {", ServerHello", 2},
493 {", HelloVerifyRequest", 3},
494 {", NewSessionTicket", 4},
495 {", Certificate", 11},
496 {", ServerKeyExchange", 12},
497 {", CertificateRequest", 13},
498 {", ServerHelloDone", 14},
499 {", CertificateVerify", 15},
500 {", ClientKeyExchange", 16},
502 {", CertificateUrl", 21},
503 {", CertificateStatus", 22},
504 {", SupplementalData", 23},
508 void msg_cb(int write_p, int version, int content_type, const void *buf,
509 size_t len, SSL *ssl, void *arg)
512 const char *str_write_p = write_p ? ">>>" : "<<<";
513 const char *str_version = lookup(version, ssl_versions, "???");
514 const char *str_content_type = "", *str_details1 = "", *str_details2 = "";
515 const unsigned char* bp = buf;
517 if (version == SSL3_VERSION ||
518 version == TLS1_VERSION ||
519 version == TLS1_1_VERSION ||
520 version == TLS1_2_VERSION ||
521 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
522 switch (content_type) {
524 str_content_type = "ChangeCipherSpec";
527 str_content_type = "Alert";
528 str_details1 = ", ???";
532 str_details1 = ", warning";
535 str_details1 = ", fatal";
538 str_details2 = lookup((int)bp[1], alert_types, " ???");
542 str_content_type = "Handshake";
543 str_details1 = "???";
545 str_details1 = lookup((int)bp[0], handshakes, "???");
548 str_content_type = "ApplicationData";
550 #ifndef OPENSSL_NO_HEARTBEATS
552 str_details1 = ", Heartbeat";
557 str_details1 = ", HeartbeatRequest";
560 str_details1 = ", HeartbeatResponse";
569 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
570 str_content_type, (unsigned long)len, str_details1,
576 BIO_printf(bio, " ");
578 for (i = 0; i < num; i++) {
579 if (i % 16 == 0 && i > 0)
580 BIO_printf(bio, "\n ");
581 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
584 BIO_printf(bio, " ...");
585 BIO_printf(bio, "\n");
587 (void)BIO_flush(bio);
590 static STRINT_PAIR tlsext_types[] = {
591 {"server name", TLSEXT_TYPE_server_name},
592 {"max fragment length", TLSEXT_TYPE_max_fragment_length},
593 {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
594 {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
595 {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
596 {"status request", TLSEXT_TYPE_status_request},
597 {"user mapping", TLSEXT_TYPE_user_mapping},
598 {"client authz", TLSEXT_TYPE_client_authz},
599 {"server authz", TLSEXT_TYPE_server_authz},
600 {"cert type", TLSEXT_TYPE_cert_type},
601 {"elliptic curves", TLSEXT_TYPE_elliptic_curves},
602 {"EC point formats", TLSEXT_TYPE_ec_point_formats},
603 {"SRP", TLSEXT_TYPE_srp},
604 {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
605 {"use SRTP", TLSEXT_TYPE_use_srtp},
606 {"heartbeat", TLSEXT_TYPE_heartbeat},
607 {"session ticket", TLSEXT_TYPE_session_ticket},
608 {"renegotiation info", TLSEXT_TYPE_renegotiate},
609 {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp},
610 {"TLS padding", TLSEXT_TYPE_padding},
611 #ifdef TLSEXT_TYPE_next_proto_neg
612 {"next protocol", TLSEXT_TYPE_next_proto_neg},
614 #ifdef TLSEXT_TYPE_encrypt_then_mac
615 {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
617 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
618 {"application layer protocol negotiation",
619 TLSEXT_TYPE_application_layer_protocol_negotiation},
621 #ifdef TLSEXT_TYPE_extended_master_secret
622 {"extended master secret", TLSEXT_TYPE_extended_master_secret},
627 void tlsext_cb(SSL *s, int client_server, int type,
628 const unsigned char *data, int len, void *arg)
631 const char *extname = lookup(type, tlsext_types, "unknown");
633 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
634 client_server ? "server" : "client", extname, type, len);
635 BIO_dump(bio, (const char *)data, len);
636 (void)BIO_flush(bio);
639 #ifndef OPENSSL_NO_SOCK
640 int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
641 unsigned int *cookie_len)
643 unsigned char *buffer;
646 BIO_ADDR *peer = NULL;
648 /* Initialize a random secret */
649 if (!cookie_initialized) {
650 if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
651 BIO_printf(bio_err, "error setting random cookie secret\n");
654 cookie_initialized = 1;
657 peer = BIO_ADDR_new();
659 BIO_printf(bio_err, "memory full\n");
663 /* Read peer information */
664 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer);
666 /* Create buffer with peer's address and port */
667 BIO_ADDR_rawaddress(peer, NULL, &length);
668 OPENSSL_assert(length != 0);
669 port = BIO_ADDR_rawport(peer);
670 length += sizeof(port);
671 buffer = app_malloc(length, "cookie generate buffer");
673 memcpy(buffer, &port, sizeof(port));
674 BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL);
676 /* Calculate HMAC of buffer using the secret */
677 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
678 buffer, length, cookie, cookie_len);
680 OPENSSL_free(buffer);
686 int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
687 unsigned int cookie_len)
689 unsigned char result[EVP_MAX_MD_SIZE];
690 unsigned int resultlength;
692 /* Note: we check cookie_initialized because if it's not,
693 * it cannot be valid */
694 if (cookie_initialized
695 && generate_cookie_callback(ssl, result, &resultlength)
696 && cookie_len == resultlength
697 && memcmp(result, cookie, resultlength) == 0)
705 * Example of extended certificate handling. Where the standard support of
706 * one certificate per algorithm is not sufficient an application can decide
707 * which certificate(s) to use at runtime based on whatever criteria it deems
711 /* Linked list of certificates, keys and chains */
712 struct ssl_excert_st {
714 const char *certfile;
717 const char *chainfile;
720 STACK_OF(X509) *chain;
722 struct ssl_excert_st *next, *prev;
725 static STRINT_PAIR chain_flags[] = {
726 {"Overall Validity", CERT_PKEY_VALID},
727 {"Sign with EE key", CERT_PKEY_SIGN},
728 {"EE signature", CERT_PKEY_EE_SIGNATURE},
729 {"CA signature", CERT_PKEY_CA_SIGNATURE},
730 {"EE key parameters", CERT_PKEY_EE_PARAM},
731 {"CA key parameters", CERT_PKEY_CA_PARAM},
732 {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
733 {"Issuer Name", CERT_PKEY_ISSUER_NAME},
734 {"Certificate Type", CERT_PKEY_CERT_TYPE},
738 static void print_chain_flags(SSL *s, int flags)
742 for (pp = chain_flags; pp->name; ++pp)
743 BIO_printf(bio_err, "\t%s: %s\n",
745 (flags & pp->retval) ? "OK" : "NOT OK");
746 BIO_printf(bio_err, "\tSuite B: ");
747 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
748 BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
750 BIO_printf(bio_err, "not tested\n");
754 * Very basic selection callback: just use any certificate chain reported as
755 * valid. More sophisticated could prioritise according to local policy.
757 static int set_cert_cb(SSL *ssl, void *arg)
760 SSL_EXCERT *exc = arg;
761 #ifdef CERT_CB_TEST_RETRY
762 static int retry_cnt;
766 "Certificate callback retry test: count %d\n",
771 SSL_certs_clear(ssl);
777 * Go to end of list and traverse backwards since we prepend newer
778 * entries this retains the original order.
787 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
788 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
789 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
791 BIO_puts(bio_err, "\n");
792 print_chain_flags(ssl, rv);
793 if (rv & CERT_PKEY_VALID) {
794 if (!SSL_use_certificate(ssl, exc->cert)
795 || !SSL_use_PrivateKey(ssl, exc->key)) {
799 * NB: we wouldn't normally do this as it is not efficient
800 * building chains on each connection better to cache the chain
803 if (exc->build_chain) {
804 if (!SSL_build_cert_chain(ssl, 0))
806 } else if (exc->chain)
807 SSL_set1_chain(ssl, exc->chain);
814 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
816 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
819 static int ssl_excert_prepend(SSL_EXCERT **pexc)
821 SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
823 memset(exc, 0, sizeof(*exc));
829 exc->certform = exc->next->certform;
830 exc->keyform = exc->next->keyform;
831 exc->next->prev = exc;
833 exc->certform = FORMAT_PEM;
834 exc->keyform = FORMAT_PEM;
840 void ssl_excert_free(SSL_EXCERT *exc)
847 X509_free(exc->cert);
848 EVP_PKEY_free(exc->key);
849 sk_X509_pop_free(exc->chain, X509_free);
856 int load_excert(SSL_EXCERT **pexc)
858 SSL_EXCERT *exc = *pexc;
861 /* If nothing in list, free and set to NULL */
862 if (!exc->certfile && !exc->next) {
863 ssl_excert_free(exc);
867 for (; exc; exc = exc->next) {
868 if (!exc->certfile) {
869 BIO_printf(bio_err, "Missing filename\n");
872 exc->cert = load_cert(exc->certfile, exc->certform,
873 "Server Certificate");
877 exc->key = load_key(exc->keyfile, exc->keyform,
878 0, NULL, NULL, "Server Key");
880 exc->key = load_key(exc->certfile, exc->certform,
881 0, NULL, NULL, "Server Key");
885 if (exc->chainfile) {
886 if (!load_certs(exc->chainfile, &exc->chain, FORMAT_PEM, NULL,
894 enum range { OPT_X_ENUM };
896 int args_excert(int opt, SSL_EXCERT **pexc)
898 SSL_EXCERT *exc = *pexc;
900 assert(opt > OPT_X__FIRST);
901 assert(opt < OPT_X__LAST);
904 if (!ssl_excert_prepend(&exc)) {
905 BIO_printf(bio_err, " %s: Error initialising xcert\n",
912 switch ((enum range)opt) {
917 if (exc->certfile && !ssl_excert_prepend(&exc)) {
918 BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
921 exc->certfile = opt_arg();
925 BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
928 exc->keyfile = opt_arg();
931 if (exc->chainfile) {
932 BIO_printf(bio_err, "%s: Chain already specified\n",
936 exc->chainfile = opt_arg();
938 case OPT_X_CHAIN_BUILD:
939 exc->build_chain = 1;
942 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->certform))
946 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->keyform))
953 ERR_print_errors(bio_err);
954 ssl_excert_free(exc);
959 static void print_raw_cipherlist(SSL *s)
961 const unsigned char *rlist;
962 static const unsigned char scsv_id[] = { 0, 0xFF };
963 size_t i, rlistlen, num;
964 if (!SSL_is_server(s))
966 num = SSL_get0_raw_cipherlist(s, NULL);
967 OPENSSL_assert(num == 2);
968 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
969 BIO_puts(bio_err, "Client cipher list: ");
970 for (i = 0; i < rlistlen; i += num, rlist += num) {
971 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
973 BIO_puts(bio_err, ":");
975 BIO_puts(bio_err, SSL_CIPHER_get_name(c));
976 else if (!memcmp(rlist, scsv_id, num))
977 BIO_puts(bio_err, "SCSV");
980 BIO_puts(bio_err, "0x");
981 for (j = 0; j < num; j++)
982 BIO_printf(bio_err, "%02X", rlist[j]);
985 BIO_puts(bio_err, "\n");
989 * Hex encoder for TLSA RRdata, not ':' delimited.
991 static char *hexencode(const unsigned char *data, size_t len)
993 static const char *hex = "0123456789abcdef";
996 size_t outlen = 2 * len + 1;
997 int ilen = (int) outlen;
999 if (outlen < len || ilen < 0 || outlen != (size_t)ilen) {
1000 BIO_printf(bio_err, "%s: %" PRIu64 "-byte buffer too large to hexencode\n",
1001 opt_getprog(), (uint64_t)len);
1004 cp = out = app_malloc(ilen, "TLSA hex data buffer");
1007 *cp++ = hex[(*data >> 4) & 0x0f];
1008 *cp++ = hex[*data++ & 0x0f];
1014 void print_verify_detail(SSL *s, BIO *bio)
1018 long verify_err = SSL_get_verify_result(s);
1020 if (verify_err == X509_V_OK) {
1021 const char *peername = SSL_get0_peername(s);
1023 BIO_printf(bio, "Verification: OK\n");
1024 if (peername != NULL)
1025 BIO_printf(bio, "Verified peername: %s\n", peername);
1027 const char *reason = X509_verify_cert_error_string(verify_err);
1029 BIO_printf(bio, "Verification error: %s\n", reason);
1032 if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) {
1033 uint8_t usage, selector, mtype;
1034 const unsigned char *data = NULL;
1038 mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen);
1041 * The TLSA data field can be quite long when it is a certificate,
1042 * public key or even a SHA2-512 digest. Because the initial octets of
1043 * ASN.1 certificates and public keys contain mostly boilerplate OIDs
1044 * and lengths, we show the last 12 bytes of the data instead, as these
1045 * are more likely to distinguish distinct TLSA records.
1047 #define TLSA_TAIL_SIZE 12
1048 if (dlen > TLSA_TAIL_SIZE)
1049 hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE);
1051 hexdata = hexencode(data, dlen);
1052 BIO_printf(bio, "DANE TLSA %d %d %d %s%s %s at depth %d\n",
1053 usage, selector, mtype,
1054 (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata,
1055 (mspki != NULL) ? "signed the certificate" :
1056 mdpth ? "matched TA certificate" : "matched EE certificate",
1058 OPENSSL_free(hexdata);
1062 void print_ssl_summary(SSL *s)
1064 const SSL_CIPHER *c;
1066 /* const char *pnam = SSL_is_server(s) ? "client" : "server"; */
1068 BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
1069 print_raw_cipherlist(s);
1070 c = SSL_get_current_cipher(s);
1071 BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1072 do_print_sigalgs(bio_err, s, 0);
1073 peer = SSL_get_peer_certificate(s);
1077 BIO_puts(bio_err, "Peer certificate: ");
1078 X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1079 0, XN_FLAG_ONELINE);
1080 BIO_puts(bio_err, "\n");
1081 if (SSL_get_peer_signature_nid(s, &nid))
1082 BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1083 print_verify_detail(s, bio_err);
1085 BIO_puts(bio_err, "No peer certificate\n");
1087 #ifndef OPENSSL_NO_EC
1088 ssl_print_point_formats(bio_err, s);
1089 if (SSL_is_server(s))
1090 ssl_print_curves(bio_err, s, 1);
1092 ssl_print_tmp_key(bio_err, s);
1094 if (!SSL_is_server(s))
1095 ssl_print_tmp_key(bio_err, s);
1099 int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
1104 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1105 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1106 const char *flag = sk_OPENSSL_STRING_value(str, i);
1107 const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
1108 if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
1110 BIO_printf(bio_err, "Error with command: \"%s %s\"\n",
1113 BIO_printf(bio_err, "Error with command: \"%s\"\n", flag);
1114 ERR_print_errors(bio_err);
1118 if (!SSL_CONF_CTX_finish(cctx)) {
1119 BIO_puts(bio_err, "Error finishing context\n");
1120 ERR_print_errors(bio_err);
1126 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1130 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1131 crl = sk_X509_CRL_value(crls, i);
1132 X509_STORE_add_crl(st, crl);
1137 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1140 st = SSL_CTX_get_cert_store(ctx);
1141 add_crls_store(st, crls);
1143 store_setup_crl_download(st);
1147 int ssl_load_stores(SSL_CTX *ctx,
1148 const char *vfyCApath, const char *vfyCAfile,
1149 const char *chCApath, const char *chCAfile,
1150 STACK_OF(X509_CRL) *crls, int crl_download)
1152 X509_STORE *vfy = NULL, *ch = NULL;
1154 if (vfyCApath != NULL || vfyCAfile != NULL) {
1155 vfy = X509_STORE_new();
1158 if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
1160 add_crls_store(vfy, crls);
1161 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1163 store_setup_crl_download(vfy);
1165 if (chCApath != NULL || chCAfile != NULL) {
1166 ch = X509_STORE_new();
1169 if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
1171 SSL_CTX_set1_chain_cert_store(ctx, ch);
1175 X509_STORE_free(vfy);
1176 X509_STORE_free(ch);
1180 /* Verbose print out of security callback */
1185 int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1186 void *other, void *ex);
1187 } security_debug_ex;
1189 static STRINT_PAIR callback_types[] = {
1190 {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
1191 {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
1192 {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
1193 #ifndef OPENSSL_NO_DH
1194 {"Temp DH key bits", SSL_SECOP_TMP_DH},
1196 {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
1197 {"Shared Curve", SSL_SECOP_CURVE_SHARED},
1198 {"Check Curve", SSL_SECOP_CURVE_CHECK},
1199 {"Supported Signature Algorithm digest", SSL_SECOP_SIGALG_SUPPORTED},
1200 {"Shared Signature Algorithm digest", SSL_SECOP_SIGALG_SHARED},
1201 {"Check Signature Algorithm digest", SSL_SECOP_SIGALG_CHECK},
1202 {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
1203 {"Certificate chain EE key", SSL_SECOP_EE_KEY},
1204 {"Certificate chain CA key", SSL_SECOP_CA_KEY},
1205 {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
1206 {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
1207 {"Certificate chain CA digest", SSL_SECOP_CA_MD},
1208 {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
1209 {"SSL compression", SSL_SECOP_COMPRESSION},
1210 {"Session ticket", SSL_SECOP_TICKET},
1214 static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
1215 int op, int bits, int nid,
1216 void *other, void *ex)
1218 security_debug_ex *sdb = ex;
1219 int rv, show_bits = 1, cert_md = 0;
1221 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1222 if (rv == 1 && sdb->verbose < 2)
1224 BIO_puts(sdb->out, "Security callback: ");
1226 nm = lookup(op, callback_types, NULL);
1228 case SSL_SECOP_TICKET:
1229 case SSL_SECOP_COMPRESSION:
1233 case SSL_SECOP_VERSION:
1234 BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1238 case SSL_SECOP_CA_MD:
1239 case SSL_SECOP_PEER_CA_MD:
1244 BIO_printf(sdb->out, "%s=", nm);
1246 switch (op & SSL_SECOP_OTHER_TYPE) {
1248 case SSL_SECOP_OTHER_CIPHER:
1249 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1252 #ifndef OPENSSL_NO_EC
1253 case SSL_SECOP_OTHER_CURVE:
1256 cname = EC_curve_nid2nist(nid);
1258 cname = OBJ_nid2sn(nid);
1259 BIO_puts(sdb->out, cname);
1263 #ifndef OPENSSL_NO_DH
1264 case SSL_SECOP_OTHER_DH:
1267 BIO_printf(sdb->out, "%d", DH_bits(dh));
1271 case SSL_SECOP_OTHER_CERT:
1274 int sig_nid = X509_get_signature_nid(other);
1275 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1277 EVP_PKEY *pkey = X509_get0_pubkey(other);
1278 const char *algname = "";
1279 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1280 &algname, EVP_PKEY_get0_asn1(pkey));
1281 BIO_printf(sdb->out, "%s, bits=%d",
1282 algname, EVP_PKEY_bits(pkey));
1286 case SSL_SECOP_OTHER_SIGALG:
1288 const unsigned char *salg = other;
1289 const char *sname = NULL;
1291 case TLSEXT_signature_anonymous:
1292 sname = "anonymous";
1294 case TLSEXT_signature_rsa:
1297 case TLSEXT_signature_dsa:
1300 case TLSEXT_signature_ecdsa:
1305 BIO_puts(sdb->out, OBJ_nid2sn(nid));
1307 BIO_printf(sdb->out, ", algorithm=%s", sname);
1309 BIO_printf(sdb->out, ", algid=%d", salg[1]);
1316 BIO_printf(sdb->out, ", security bits=%d", bits);
1317 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1321 void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1323 static security_debug_ex sdb;
1326 sdb.verbose = verbose;
1327 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1328 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1329 SSL_CTX_set0_security_ex_data(ctx, &sdb);