2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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() */
15 #include <openssl/core_names.h>
16 #include <openssl/params.h>
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
30 DEFINE_STACK_OF(X509_CRL)
31 DEFINE_STACK_OF(X509_NAME)
32 DEFINE_STACK_OF_STRING()
34 VERIFY_CB_ARGS verify_args = { -1, 0, X509_V_OK, 0 };
36 #ifndef OPENSSL_NO_SOCK
37 static unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
38 static int cookie_initialized = 0;
40 static BIO *bio_keylog = NULL;
42 static const char *lookup(int val, const STRINT_PAIR* list, const char* def)
44 for ( ; list->name; ++list)
45 if (list->retval == val)
50 int verify_callback(int ok, X509_STORE_CTX *ctx)
55 err_cert = X509_STORE_CTX_get_current_cert(ctx);
56 err = X509_STORE_CTX_get_error(ctx);
57 depth = X509_STORE_CTX_get_error_depth(ctx);
59 if (!verify_args.quiet || !ok) {
60 BIO_printf(bio_err, "depth=%d ", depth);
61 if (err_cert != NULL) {
62 X509_NAME_print_ex(bio_err,
63 X509_get_subject_name(err_cert),
65 BIO_puts(bio_err, "\n");
67 BIO_puts(bio_err, "<no cert>\n");
71 BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
72 X509_verify_cert_error_string(err));
73 if (verify_args.depth < 0 || verify_args.depth >= depth) {
74 if (!verify_args.return_error)
76 verify_args.error = err;
79 verify_args.error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
83 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
84 BIO_puts(bio_err, "issuer= ");
85 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
87 BIO_puts(bio_err, "\n");
89 case X509_V_ERR_CERT_NOT_YET_VALID:
90 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
91 BIO_printf(bio_err, "notBefore=");
92 ASN1_TIME_print(bio_err, X509_get0_notBefore(err_cert));
93 BIO_printf(bio_err, "\n");
95 case X509_V_ERR_CERT_HAS_EXPIRED:
96 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
97 BIO_printf(bio_err, "notAfter=");
98 ASN1_TIME_print(bio_err, X509_get0_notAfter(err_cert));
99 BIO_printf(bio_err, "\n");
101 case X509_V_ERR_NO_EXPLICIT_POLICY:
102 if (!verify_args.quiet)
106 if (err == X509_V_OK && ok == 2 && !verify_args.quiet)
108 if (ok && !verify_args.quiet)
109 BIO_printf(bio_err, "verify return:%d\n", ok);
113 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
115 if (cert_file != NULL) {
116 if (SSL_CTX_use_certificate_file(ctx, cert_file,
117 SSL_FILETYPE_PEM) <= 0) {
118 BIO_printf(bio_err, "unable to get certificate from '%s'\n",
120 ERR_print_errors(bio_err);
123 if (key_file == NULL)
124 key_file = cert_file;
125 if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
126 BIO_printf(bio_err, "unable to get private key from '%s'\n",
128 ERR_print_errors(bio_err);
133 * If we are using DSA, we can copy the parameters from the private
138 * Now we know that a key and cert have been set against the SSL
141 if (!SSL_CTX_check_private_key(ctx)) {
143 "Private key does not match the certificate public key\n");
150 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
151 STACK_OF(X509) *chain, int build_chain)
153 int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
156 if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
157 BIO_printf(bio_err, "error setting certificate\n");
158 ERR_print_errors(bio_err);
162 if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
163 BIO_printf(bio_err, "error setting private key\n");
164 ERR_print_errors(bio_err);
169 * Now we know that a key and cert have been set against the SSL context
171 if (!SSL_CTX_check_private_key(ctx)) {
173 "Private key does not match the certificate public key\n");
176 if (chain && !SSL_CTX_set1_chain(ctx, chain)) {
177 BIO_printf(bio_err, "error setting certificate chain\n");
178 ERR_print_errors(bio_err);
181 if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) {
182 BIO_printf(bio_err, "error building certificate chain\n");
183 ERR_print_errors(bio_err);
189 static STRINT_PAIR cert_type_list[] = {
190 {"RSA sign", TLS_CT_RSA_SIGN},
191 {"DSA sign", TLS_CT_DSS_SIGN},
192 {"RSA fixed DH", TLS_CT_RSA_FIXED_DH},
193 {"DSS fixed DH", TLS_CT_DSS_FIXED_DH},
194 {"ECDSA sign", TLS_CT_ECDSA_SIGN},
195 {"RSA fixed ECDH", TLS_CT_RSA_FIXED_ECDH},
196 {"ECDSA fixed ECDH", TLS_CT_ECDSA_FIXED_ECDH},
197 {"GOST01 Sign", TLS_CT_GOST01_SIGN},
198 {"GOST12 Sign", TLS_CT_GOST12_IANA_SIGN},
202 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
204 const unsigned char *p;
206 int cert_type_num = SSL_get0_certificate_types(s, &p);
209 BIO_puts(bio, "Client Certificate Types: ");
210 for (i = 0; i < cert_type_num; i++) {
211 unsigned char cert_type = p[i];
212 const char *cname = lookup((int)cert_type, cert_type_list, NULL);
217 BIO_puts(bio, cname);
219 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
224 static const char *get_sigtype(int nid)
230 case EVP_PKEY_RSA_PSS:
245 case NID_id_GostR3410_2001:
248 case NID_id_GostR3410_2012_256:
249 return "gost2012_256";
251 case NID_id_GostR3410_2012_512:
252 return "gost2012_512";
259 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
262 client = SSL_is_server(s) ? 0 : 1;
264 nsig = SSL_get_shared_sigalgs(s, 0, NULL, NULL, NULL, NULL, NULL);
266 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
271 BIO_puts(out, "Shared ");
274 BIO_puts(out, "Requested ");
275 BIO_puts(out, "Signature Algorithms: ");
276 for (i = 0; i < nsig; i++) {
277 int hash_nid, sign_nid;
278 unsigned char rhash, rsign;
279 const char *sstr = NULL;
281 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
284 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
287 sstr = get_sigtype(sign_nid);
289 BIO_printf(out, "%s", sstr);
291 BIO_printf(out, "0x%02X", (int)rsign);
292 if (hash_nid != NID_undef)
293 BIO_printf(out, "+%s", OBJ_nid2sn(hash_nid));
294 else if (sstr == NULL)
295 BIO_printf(out, "+0x%02X", (int)rhash);
301 int ssl_print_sigalgs(BIO *out, SSL *s)
304 if (!SSL_is_server(s))
305 ssl_print_client_cert_types(out, s);
306 do_print_sigalgs(out, s, 0);
307 do_print_sigalgs(out, s, 1);
308 if (SSL_get_peer_signature_nid(s, &nid) && nid != NID_undef)
309 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(nid));
310 if (SSL_get_peer_signature_type_nid(s, &nid))
311 BIO_printf(out, "Peer signature type: %s\n", get_sigtype(nid));
315 #ifndef OPENSSL_NO_EC
316 int ssl_print_point_formats(BIO *out, SSL *s)
319 const char *pformats;
320 nformats = SSL_get0_ec_point_formats(s, &pformats);
323 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
324 for (i = 0; i < nformats; i++, pformats++) {
328 case TLSEXT_ECPOINTFORMAT_uncompressed:
329 BIO_puts(out, "uncompressed");
332 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
333 BIO_puts(out, "ansiX962_compressed_prime");
336 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
337 BIO_puts(out, "ansiX962_compressed_char2");
341 BIO_printf(out, "unknown(%d)", (int)*pformats);
350 int ssl_print_groups(BIO *out, SSL *s, int noshared)
352 int i, ngroups, *groups, nid;
355 ngroups = SSL_get1_groups(s, NULL);
358 groups = app_malloc(ngroups * sizeof(int), "groups to print");
359 SSL_get1_groups(s, groups);
361 BIO_puts(out, "Supported Elliptic Groups: ");
362 for (i = 0; i < ngroups; i++) {
366 /* If unrecognised print out hex version */
367 if (nid & TLSEXT_nid_unknown) {
368 BIO_printf(out, "0x%04X", nid & 0xFFFF);
370 /* TODO(TLS1.3): Get group name here */
371 /* Use NIST name for curve if it exists */
372 gname = EC_curve_nid2nist(nid);
374 gname = OBJ_nid2sn(nid);
375 BIO_printf(out, "%s", gname);
378 OPENSSL_free(groups);
383 BIO_puts(out, "\nShared Elliptic groups: ");
384 ngroups = SSL_get_shared_group(s, -1);
385 for (i = 0; i < ngroups; i++) {
388 nid = SSL_get_shared_group(s, i);
389 /* TODO(TLS1.3): Convert for DH groups */
390 gname = EC_curve_nid2nist(nid);
392 gname = OBJ_nid2sn(nid);
393 BIO_printf(out, "%s", gname);
396 BIO_puts(out, "NONE");
402 int ssl_print_tmp_key(BIO *out, SSL *s)
406 if (!SSL_get_peer_tmp_key(s, &key))
408 BIO_puts(out, "Server Temp Key: ");
409 switch (EVP_PKEY_id(key)) {
411 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
415 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
417 #ifndef OPENSSL_NO_EC
420 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
423 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
425 cname = EC_curve_nid2nist(nid);
427 cname = OBJ_nid2sn(nid);
428 BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
433 BIO_printf(out, "%s, %d bits\n", OBJ_nid2sn(EVP_PKEY_id(key)),
440 long bio_dump_callback(BIO *bio, int cmd, const char *argp,
441 int argi, long argl, long ret)
445 out = (BIO *)BIO_get_callback_arg(bio);
449 if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
450 BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
451 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
452 BIO_dump(out, argp, (int)ret);
454 } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
455 BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
456 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
457 BIO_dump(out, argp, (int)ret);
462 void apps_ssl_info_callback(const SSL *s, int where, int ret)
467 w = where & ~SSL_ST_MASK;
469 if (w & SSL_ST_CONNECT)
471 else if (w & SSL_ST_ACCEPT)
476 if (where & SSL_CB_LOOP) {
477 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
478 } else if (where & SSL_CB_ALERT) {
479 str = (where & SSL_CB_READ) ? "read" : "write";
480 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
482 SSL_alert_type_string_long(ret),
483 SSL_alert_desc_string_long(ret));
484 } else if (where & SSL_CB_EXIT) {
486 BIO_printf(bio_err, "%s:failed in %s\n",
487 str, SSL_state_string_long(s));
489 BIO_printf(bio_err, "%s:error in %s\n",
490 str, SSL_state_string_long(s));
494 static STRINT_PAIR ssl_versions[] = {
495 {"SSL 3.0", SSL3_VERSION},
496 {"TLS 1.0", TLS1_VERSION},
497 {"TLS 1.1", TLS1_1_VERSION},
498 {"TLS 1.2", TLS1_2_VERSION},
499 {"TLS 1.3", TLS1_3_VERSION},
500 {"DTLS 1.0", DTLS1_VERSION},
501 {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
505 static STRINT_PAIR alert_types[] = {
506 {" close_notify", 0},
507 {" end_of_early_data", 1},
508 {" unexpected_message", 10},
509 {" bad_record_mac", 20},
510 {" decryption_failed", 21},
511 {" record_overflow", 22},
512 {" decompression_failure", 30},
513 {" handshake_failure", 40},
514 {" bad_certificate", 42},
515 {" unsupported_certificate", 43},
516 {" certificate_revoked", 44},
517 {" certificate_expired", 45},
518 {" certificate_unknown", 46},
519 {" illegal_parameter", 47},
521 {" access_denied", 49},
522 {" decode_error", 50},
523 {" decrypt_error", 51},
524 {" export_restriction", 60},
525 {" protocol_version", 70},
526 {" insufficient_security", 71},
527 {" internal_error", 80},
528 {" inappropriate_fallback", 86},
529 {" user_canceled", 90},
530 {" no_renegotiation", 100},
531 {" missing_extension", 109},
532 {" unsupported_extension", 110},
533 {" certificate_unobtainable", 111},
534 {" unrecognized_name", 112},
535 {" bad_certificate_status_response", 113},
536 {" bad_certificate_hash_value", 114},
537 {" unknown_psk_identity", 115},
538 {" certificate_required", 116},
542 static STRINT_PAIR handshakes[] = {
543 {", HelloRequest", SSL3_MT_HELLO_REQUEST},
544 {", ClientHello", SSL3_MT_CLIENT_HELLO},
545 {", ServerHello", SSL3_MT_SERVER_HELLO},
546 {", HelloVerifyRequest", DTLS1_MT_HELLO_VERIFY_REQUEST},
547 {", NewSessionTicket", SSL3_MT_NEWSESSION_TICKET},
548 {", EndOfEarlyData", SSL3_MT_END_OF_EARLY_DATA},
549 {", EncryptedExtensions", SSL3_MT_ENCRYPTED_EXTENSIONS},
550 {", Certificate", SSL3_MT_CERTIFICATE},
551 {", ServerKeyExchange", SSL3_MT_SERVER_KEY_EXCHANGE},
552 {", CertificateRequest", SSL3_MT_CERTIFICATE_REQUEST},
553 {", ServerHelloDone", SSL3_MT_SERVER_DONE},
554 {", CertificateVerify", SSL3_MT_CERTIFICATE_VERIFY},
555 {", ClientKeyExchange", SSL3_MT_CLIENT_KEY_EXCHANGE},
556 {", Finished", SSL3_MT_FINISHED},
557 {", CertificateUrl", SSL3_MT_CERTIFICATE_URL},
558 {", CertificateStatus", SSL3_MT_CERTIFICATE_STATUS},
559 {", SupplementalData", SSL3_MT_SUPPLEMENTAL_DATA},
560 {", KeyUpdate", SSL3_MT_KEY_UPDATE},
561 #ifndef OPENSSL_NO_NEXTPROTONEG
562 {", NextProto", SSL3_MT_NEXT_PROTO},
564 {", MessageHash", SSL3_MT_MESSAGE_HASH},
568 void msg_cb(int write_p, int version, int content_type, const void *buf,
569 size_t len, SSL *ssl, void *arg)
572 const char *str_write_p = write_p ? ">>>" : "<<<";
573 const char *str_version = lookup(version, ssl_versions, "???");
574 const char *str_content_type = "", *str_details1 = "", *str_details2 = "";
575 const unsigned char* bp = buf;
577 if (version == SSL3_VERSION ||
578 version == TLS1_VERSION ||
579 version == TLS1_1_VERSION ||
580 version == TLS1_2_VERSION ||
581 version == TLS1_3_VERSION ||
582 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
583 switch (content_type) {
585 str_content_type = ", ChangeCipherSpec";
588 str_content_type = ", Alert";
589 str_details1 = ", ???";
593 str_details1 = ", warning";
596 str_details1 = ", fatal";
599 str_details2 = lookup((int)bp[1], alert_types, " ???");
603 str_content_type = ", Handshake";
604 str_details1 = "???";
606 str_details1 = lookup((int)bp[0], handshakes, "???");
609 str_content_type = ", ApplicationData";
614 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
615 str_content_type, (unsigned long)len, str_details1,
621 BIO_printf(bio, " ");
623 for (i = 0; i < num; i++) {
624 if (i % 16 == 0 && i > 0)
625 BIO_printf(bio, "\n ");
626 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
629 BIO_printf(bio, " ...");
630 BIO_printf(bio, "\n");
632 (void)BIO_flush(bio);
635 static STRINT_PAIR tlsext_types[] = {
636 {"server name", TLSEXT_TYPE_server_name},
637 {"max fragment length", TLSEXT_TYPE_max_fragment_length},
638 {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
639 {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
640 {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
641 {"status request", TLSEXT_TYPE_status_request},
642 {"user mapping", TLSEXT_TYPE_user_mapping},
643 {"client authz", TLSEXT_TYPE_client_authz},
644 {"server authz", TLSEXT_TYPE_server_authz},
645 {"cert type", TLSEXT_TYPE_cert_type},
646 {"supported_groups", TLSEXT_TYPE_supported_groups},
647 {"EC point formats", TLSEXT_TYPE_ec_point_formats},
648 {"SRP", TLSEXT_TYPE_srp},
649 {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
650 {"use SRTP", TLSEXT_TYPE_use_srtp},
651 {"session ticket", TLSEXT_TYPE_session_ticket},
652 {"renegotiation info", TLSEXT_TYPE_renegotiate},
653 {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp},
654 {"TLS padding", TLSEXT_TYPE_padding},
655 #ifdef TLSEXT_TYPE_next_proto_neg
656 {"next protocol", TLSEXT_TYPE_next_proto_neg},
658 #ifdef TLSEXT_TYPE_encrypt_then_mac
659 {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
661 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
662 {"application layer protocol negotiation",
663 TLSEXT_TYPE_application_layer_protocol_negotiation},
665 #ifdef TLSEXT_TYPE_extended_master_secret
666 {"extended master secret", TLSEXT_TYPE_extended_master_secret},
668 {"key share", TLSEXT_TYPE_key_share},
669 {"supported versions", TLSEXT_TYPE_supported_versions},
670 {"psk", TLSEXT_TYPE_psk},
671 {"psk kex modes", TLSEXT_TYPE_psk_kex_modes},
672 {"certificate authorities", TLSEXT_TYPE_certificate_authorities},
673 {"post handshake auth", TLSEXT_TYPE_post_handshake_auth},
677 /* from rfc8446 4.2.3. + gost (https://tools.ietf.org/id/draft-smyshlyaev-tls12-gost-suites-04.html) */
678 static STRINT_PAIR signature_tls13_scheme_list[] = {
679 {"rsa_pkcs1_sha1", 0x0201 /* TLSEXT_SIGALG_rsa_pkcs1_sha1 */},
680 {"ecdsa_sha1", 0x0203 /* TLSEXT_SIGALG_ecdsa_sha1 */},
681 /* {"rsa_pkcs1_sha224", 0x0301 TLSEXT_SIGALG_rsa_pkcs1_sha224}, not in rfc8446 */
682 /* {"ecdsa_sha224", 0x0303 TLSEXT_SIGALG_ecdsa_sha224} not in rfc8446 */
683 {"rsa_pkcs1_sha256", 0x0401 /* TLSEXT_SIGALG_rsa_pkcs1_sha256 */},
684 {"ecdsa_secp256r1_sha256", 0x0403 /* TLSEXT_SIGALG_ecdsa_secp256r1_sha256 */},
685 {"rsa_pkcs1_sha384", 0x0501 /* TLSEXT_SIGALG_rsa_pkcs1_sha384 */},
686 {"ecdsa_secp384r1_sha384", 0x0503 /* TLSEXT_SIGALG_ecdsa_secp384r1_sha384 */},
687 {"rsa_pkcs1_sha512", 0x0601 /* TLSEXT_SIGALG_rsa_pkcs1_sha512 */},
688 {"ecdsa_secp521r1_sha512", 0x0603 /* TLSEXT_SIGALG_ecdsa_secp521r1_sha512 */},
689 {"rsa_pss_rsae_sha256", 0x0804 /* TLSEXT_SIGALG_rsa_pss_rsae_sha256 */},
690 {"rsa_pss_rsae_sha384", 0x0805 /* TLSEXT_SIGALG_rsa_pss_rsae_sha384 */},
691 {"rsa_pss_rsae_sha512", 0x0806 /* TLSEXT_SIGALG_rsa_pss_rsae_sha512 */},
692 {"ed25519", 0x0807 /* TLSEXT_SIGALG_ed25519 */},
693 {"ed448", 0x0808 /* TLSEXT_SIGALG_ed448 */},
694 {"rsa_pss_pss_sha256", 0x0809 /* TLSEXT_SIGALG_rsa_pss_pss_sha256 */},
695 {"rsa_pss_pss_sha384", 0x080a /* TLSEXT_SIGALG_rsa_pss_pss_sha384 */},
696 {"rsa_pss_pss_sha512", 0x080b /* TLSEXT_SIGALG_rsa_pss_pss_sha512 */},
697 {"gostr34102001", 0xeded /* TLSEXT_SIGALG_gostr34102001_gostr3411 */},
698 {"gostr34102012_256", 0xeeee /* TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 */},
699 {"gostr34102012_512", 0xefef /* TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 */},
703 /* from rfc5246 7.4.1.4.1. */
704 static STRINT_PAIR signature_tls12_alg_list[] = {
705 {"anonymous", TLSEXT_signature_anonymous /* 0 */},
706 {"RSA", TLSEXT_signature_rsa /* 1 */},
707 {"DSA", TLSEXT_signature_dsa /* 2 */},
708 {"ECDSA", TLSEXT_signature_ecdsa /* 3 */},
712 /* from rfc5246 7.4.1.4.1. */
713 static STRINT_PAIR signature_tls12_hash_list[] = {
714 {"none", TLSEXT_hash_none /* 0 */},
715 {"MD5", TLSEXT_hash_md5 /* 1 */},
716 {"SHA1", TLSEXT_hash_sha1 /* 2 */},
717 {"SHA224", TLSEXT_hash_sha224 /* 3 */},
718 {"SHA256", TLSEXT_hash_sha256 /* 4 */},
719 {"SHA384", TLSEXT_hash_sha384 /* 5 */},
720 {"SHA512", TLSEXT_hash_sha512 /* 6 */},
724 void tlsext_cb(SSL *s, int client_server, int type,
725 const unsigned char *data, int len, void *arg)
728 const char *extname = lookup(type, tlsext_types, "unknown");
730 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
731 client_server ? "server" : "client", extname, type, len);
732 BIO_dump(bio, (const char *)data, len);
733 (void)BIO_flush(bio);
736 #ifndef OPENSSL_NO_SOCK
737 int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
738 unsigned int *cookie_len)
740 unsigned char *buffer = NULL;
743 BIO_ADDR *lpeer = NULL, *peer = NULL;
745 EVP_MAC *hmac = NULL;
746 EVP_MAC_CTX *ctx = NULL;
747 OSSL_PARAM params[3], *p = params;
749 /* Initialize a random secret */
750 if (!cookie_initialized) {
751 if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
752 BIO_printf(bio_err, "error setting random cookie secret\n");
755 cookie_initialized = 1;
758 if (SSL_is_dtls(ssl)) {
759 lpeer = peer = BIO_ADDR_new();
761 BIO_printf(bio_err, "memory full\n");
765 /* Read peer information */
766 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer);
771 /* Create buffer with peer's address and port */
772 if (!BIO_ADDR_rawaddress(peer, NULL, &length)) {
773 BIO_printf(bio_err, "Failed getting peer address\n");
776 OPENSSL_assert(length != 0);
777 port = BIO_ADDR_rawport(peer);
778 length += sizeof(port);
779 buffer = app_malloc(length, "cookie generate buffer");
781 memcpy(buffer, &port, sizeof(port));
782 BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL);
784 /* Calculate HMAC of buffer using the secret */
785 hmac = EVP_MAC_fetch(NULL, "HMAC", NULL);
787 BIO_printf(bio_err, "HMAC not found\n");
790 ctx = EVP_MAC_CTX_new(hmac);
792 BIO_printf(bio_err, "HMAC context allocation failed\n");
795 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_DIGEST, "SHA1", 0);
796 *p++ = OSSL_PARAM_construct_octet_string(OSSL_MAC_PARAM_KEY, cookie_secret,
797 COOKIE_SECRET_LENGTH);
798 *p = OSSL_PARAM_construct_end();
799 if (!EVP_MAC_CTX_set_params(ctx, params)) {
800 BIO_printf(bio_err, "HMAC context parameter setting failed\n");
803 if (!EVP_MAC_init(ctx)) {
804 BIO_printf(bio_err, "HMAC context initialisation failed\n");
807 if (!EVP_MAC_update(ctx, buffer, length)) {
808 BIO_printf(bio_err, "HMAC context update failed\n");
811 if (!EVP_MAC_final(ctx, cookie, NULL, (size_t)cookie_len)) {
812 BIO_printf(bio_err, "HMAC context final failed\n");
817 OPENSSL_free(buffer);
818 BIO_ADDR_free(lpeer);
823 int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
824 unsigned int cookie_len)
826 unsigned char result[EVP_MAX_MD_SIZE];
827 unsigned int resultlength;
829 /* Note: we check cookie_initialized because if it's not,
830 * it cannot be valid */
831 if (cookie_initialized
832 && generate_cookie_callback(ssl, result, &resultlength)
833 && cookie_len == resultlength
834 && memcmp(result, cookie, resultlength) == 0)
840 int generate_stateless_cookie_callback(SSL *ssl, unsigned char *cookie,
844 int res = generate_cookie_callback(ssl, cookie, &temp);
849 int verify_stateless_cookie_callback(SSL *ssl, const unsigned char *cookie,
852 return verify_cookie_callback(ssl, cookie, cookie_len);
858 * Example of extended certificate handling. Where the standard support of
859 * one certificate per algorithm is not sufficient an application can decide
860 * which certificate(s) to use at runtime based on whatever criteria it deems
864 /* Linked list of certificates, keys and chains */
865 struct ssl_excert_st {
867 const char *certfile;
870 const char *chainfile;
873 STACK_OF(X509) *chain;
875 struct ssl_excert_st *next, *prev;
878 static STRINT_PAIR chain_flags[] = {
879 {"Overall Validity", CERT_PKEY_VALID},
880 {"Sign with EE key", CERT_PKEY_SIGN},
881 {"EE signature", CERT_PKEY_EE_SIGNATURE},
882 {"CA signature", CERT_PKEY_CA_SIGNATURE},
883 {"EE key parameters", CERT_PKEY_EE_PARAM},
884 {"CA key parameters", CERT_PKEY_CA_PARAM},
885 {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
886 {"Issuer Name", CERT_PKEY_ISSUER_NAME},
887 {"Certificate Type", CERT_PKEY_CERT_TYPE},
891 static void print_chain_flags(SSL *s, int flags)
895 for (pp = chain_flags; pp->name; ++pp)
896 BIO_printf(bio_err, "\t%s: %s\n",
898 (flags & pp->retval) ? "OK" : "NOT OK");
899 BIO_printf(bio_err, "\tSuite B: ");
900 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
901 BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
903 BIO_printf(bio_err, "not tested\n");
907 * Very basic selection callback: just use any certificate chain reported as
908 * valid. More sophisticated could prioritise according to local policy.
910 static int set_cert_cb(SSL *ssl, void *arg)
913 SSL_EXCERT *exc = arg;
914 #ifdef CERT_CB_TEST_RETRY
915 static int retry_cnt;
919 "Certificate callback retry test: count %d\n",
924 SSL_certs_clear(ssl);
930 * Go to end of list and traverse backwards since we prepend newer
931 * entries this retains the original order.
933 while (exc->next != NULL)
938 while (exc != NULL) {
940 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
941 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
942 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
944 BIO_puts(bio_err, "\n");
945 print_chain_flags(ssl, rv);
946 if (rv & CERT_PKEY_VALID) {
947 if (!SSL_use_certificate(ssl, exc->cert)
948 || !SSL_use_PrivateKey(ssl, exc->key)) {
952 * NB: we wouldn't normally do this as it is not efficient
953 * building chains on each connection better to cache the chain
956 if (exc->build_chain) {
957 if (!SSL_build_cert_chain(ssl, 0))
959 } else if (exc->chain != NULL) {
960 SSL_set1_chain(ssl, exc->chain);
968 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
970 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
973 static int ssl_excert_prepend(SSL_EXCERT **pexc)
975 SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
977 memset(exc, 0, sizeof(*exc));
983 exc->certform = exc->next->certform;
984 exc->keyform = exc->next->keyform;
985 exc->next->prev = exc;
987 exc->certform = FORMAT_PEM;
988 exc->keyform = FORMAT_PEM;
994 void ssl_excert_free(SSL_EXCERT *exc)
1001 X509_free(exc->cert);
1002 EVP_PKEY_free(exc->key);
1003 sk_X509_pop_free(exc->chain, X509_free);
1010 int load_excert(SSL_EXCERT **pexc)
1012 SSL_EXCERT *exc = *pexc;
1015 /* If nothing in list, free and set to NULL */
1016 if (exc->certfile == NULL && exc->next == NULL) {
1017 ssl_excert_free(exc);
1021 for (; exc; exc = exc->next) {
1022 if (exc->certfile == NULL) {
1023 BIO_printf(bio_err, "Missing filename\n");
1026 exc->cert = load_cert(exc->certfile, exc->certform,
1027 "Server Certificate");
1028 if (exc->cert == NULL)
1030 if (exc->keyfile != NULL) {
1031 exc->key = load_key(exc->keyfile, exc->keyform,
1032 0, NULL, NULL, "Server Key");
1034 exc->key = load_key(exc->certfile, exc->certform,
1035 0, NULL, NULL, "Server Key");
1037 if (exc->key == NULL)
1039 if (exc->chainfile != NULL) {
1040 if (!load_certs(exc->chainfile, &exc->chain, FORMAT_PEM, NULL,
1048 enum range { OPT_X_ENUM };
1050 int args_excert(int opt, SSL_EXCERT **pexc)
1052 SSL_EXCERT *exc = *pexc;
1054 assert(opt > OPT_X__FIRST);
1055 assert(opt < OPT_X__LAST);
1058 if (!ssl_excert_prepend(&exc)) {
1059 BIO_printf(bio_err, " %s: Error initialising xcert\n",
1066 switch ((enum range)opt) {
1071 if (exc->certfile != NULL && !ssl_excert_prepend(&exc)) {
1072 BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
1076 exc->certfile = opt_arg();
1079 if (exc->keyfile != NULL) {
1080 BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
1083 exc->keyfile = opt_arg();
1086 if (exc->chainfile != NULL) {
1087 BIO_printf(bio_err, "%s: Chain already specified\n",
1091 exc->chainfile = opt_arg();
1093 case OPT_X_CHAIN_BUILD:
1094 exc->build_chain = 1;
1096 case OPT_X_CERTFORM:
1097 if (!opt_format(opt_arg(), OPT_FMT_ANY, &exc->certform))
1101 if (!opt_format(opt_arg(), OPT_FMT_ANY, &exc->keyform))
1108 ERR_print_errors(bio_err);
1109 ssl_excert_free(exc);
1114 static void print_raw_cipherlist(SSL *s)
1116 const unsigned char *rlist;
1117 static const unsigned char scsv_id[] = { 0, 0xFF };
1118 size_t i, rlistlen, num;
1119 if (!SSL_is_server(s))
1121 num = SSL_get0_raw_cipherlist(s, NULL);
1122 OPENSSL_assert(num == 2);
1123 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
1124 BIO_puts(bio_err, "Client cipher list: ");
1125 for (i = 0; i < rlistlen; i += num, rlist += num) {
1126 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
1128 BIO_puts(bio_err, ":");
1130 BIO_puts(bio_err, SSL_CIPHER_get_name(c));
1131 } else if (memcmp(rlist, scsv_id, num) == 0) {
1132 BIO_puts(bio_err, "SCSV");
1135 BIO_puts(bio_err, "0x");
1136 for (j = 0; j < num; j++)
1137 BIO_printf(bio_err, "%02X", rlist[j]);
1140 BIO_puts(bio_err, "\n");
1144 * Hex encoder for TLSA RRdata, not ':' delimited.
1146 static char *hexencode(const unsigned char *data, size_t len)
1148 static const char *hex = "0123456789abcdef";
1151 size_t outlen = 2 * len + 1;
1152 int ilen = (int) outlen;
1154 if (outlen < len || ilen < 0 || outlen != (size_t)ilen) {
1155 BIO_printf(bio_err, "%s: %zu-byte buffer too large to hexencode\n",
1156 opt_getprog(), len);
1159 cp = out = app_malloc(ilen, "TLSA hex data buffer");
1162 *cp++ = hex[(*data >> 4) & 0x0f];
1163 *cp++ = hex[*data++ & 0x0f];
1169 void print_verify_detail(SSL *s, BIO *bio)
1173 long verify_err = SSL_get_verify_result(s);
1175 if (verify_err == X509_V_OK) {
1176 const char *peername = SSL_get0_peername(s);
1178 BIO_printf(bio, "Verification: OK\n");
1179 if (peername != NULL)
1180 BIO_printf(bio, "Verified peername: %s\n", peername);
1182 const char *reason = X509_verify_cert_error_string(verify_err);
1184 BIO_printf(bio, "Verification error: %s\n", reason);
1187 if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) {
1188 uint8_t usage, selector, mtype;
1189 const unsigned char *data = NULL;
1193 mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen);
1196 * The TLSA data field can be quite long when it is a certificate,
1197 * public key or even a SHA2-512 digest. Because the initial octets of
1198 * ASN.1 certificates and public keys contain mostly boilerplate OIDs
1199 * and lengths, we show the last 12 bytes of the data instead, as these
1200 * are more likely to distinguish distinct TLSA records.
1202 #define TLSA_TAIL_SIZE 12
1203 if (dlen > TLSA_TAIL_SIZE)
1204 hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE);
1206 hexdata = hexencode(data, dlen);
1207 BIO_printf(bio, "DANE TLSA %d %d %d %s%s %s at depth %d\n",
1208 usage, selector, mtype,
1209 (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata,
1210 (mspki != NULL) ? "signed the certificate" :
1211 mdpth ? "matched TA certificate" : "matched EE certificate",
1213 OPENSSL_free(hexdata);
1217 void print_ssl_summary(SSL *s)
1219 const SSL_CIPHER *c;
1222 BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
1223 print_raw_cipherlist(s);
1224 c = SSL_get_current_cipher(s);
1225 BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1226 do_print_sigalgs(bio_err, s, 0);
1227 peer = SSL_get_peer_certificate(s);
1231 BIO_puts(bio_err, "Peer certificate: ");
1232 X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1234 BIO_puts(bio_err, "\n");
1235 if (SSL_get_peer_signature_nid(s, &nid))
1236 BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1237 if (SSL_get_peer_signature_type_nid(s, &nid))
1238 BIO_printf(bio_err, "Signature type: %s\n", get_sigtype(nid));
1239 print_verify_detail(s, bio_err);
1241 BIO_puts(bio_err, "No peer certificate\n");
1244 #ifndef OPENSSL_NO_EC
1245 ssl_print_point_formats(bio_err, s);
1246 if (SSL_is_server(s))
1247 ssl_print_groups(bio_err, s, 1);
1249 ssl_print_tmp_key(bio_err, s);
1251 if (!SSL_is_server(s))
1252 ssl_print_tmp_key(bio_err, s);
1256 int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
1261 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1262 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1263 const char *flag = sk_OPENSSL_STRING_value(str, i);
1264 const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
1265 if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
1267 BIO_printf(bio_err, "Error with command: \"%s %s\"\n",
1270 BIO_printf(bio_err, "Error with command: \"%s\"\n", flag);
1271 ERR_print_errors(bio_err);
1275 if (!SSL_CONF_CTX_finish(cctx)) {
1276 BIO_puts(bio_err, "Error finishing context\n");
1277 ERR_print_errors(bio_err);
1283 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1287 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1288 crl = sk_X509_CRL_value(crls, i);
1289 X509_STORE_add_crl(st, crl);
1294 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1297 st = SSL_CTX_get_cert_store(ctx);
1298 add_crls_store(st, crls);
1300 store_setup_crl_download(st);
1304 int ssl_load_stores(SSL_CTX *ctx,
1305 const char *vfyCApath, const char *vfyCAfile,
1306 const char *vfyCAstore,
1307 const char *chCApath, const char *chCAfile,
1308 const char *chCAstore,
1309 STACK_OF(X509_CRL) *crls, int crl_download)
1311 X509_STORE *vfy = NULL, *ch = NULL;
1313 if (vfyCApath != NULL || vfyCAfile != NULL || vfyCAstore != NULL) {
1314 vfy = X509_STORE_new();
1317 if (vfyCAfile != NULL && !X509_STORE_load_file(vfy, vfyCAfile))
1319 if (vfyCApath != NULL && !X509_STORE_load_path(vfy, vfyCApath))
1321 if (vfyCAstore != NULL && !X509_STORE_load_store(vfy, vfyCAstore))
1323 add_crls_store(vfy, crls);
1324 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1326 store_setup_crl_download(vfy);
1328 if (chCApath != NULL || chCAfile != NULL || chCAstore != NULL) {
1329 ch = X509_STORE_new();
1332 if (chCAfile != NULL && !X509_STORE_load_file(ch, chCAfile))
1334 if (chCApath != NULL && !X509_STORE_load_path(ch, chCApath))
1336 if (chCAstore != NULL && !X509_STORE_load_store(ch, chCAstore))
1338 SSL_CTX_set1_chain_cert_store(ctx, ch);
1342 X509_STORE_free(vfy);
1343 X509_STORE_free(ch);
1347 /* Verbose print out of security callback */
1352 int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1353 void *other, void *ex);
1354 } security_debug_ex;
1356 static STRINT_PAIR callback_types[] = {
1357 {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
1358 {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
1359 {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
1360 #ifndef OPENSSL_NO_DH
1361 {"Temp DH key bits", SSL_SECOP_TMP_DH},
1363 {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
1364 {"Shared Curve", SSL_SECOP_CURVE_SHARED},
1365 {"Check Curve", SSL_SECOP_CURVE_CHECK},
1366 {"Supported Signature Algorithm", SSL_SECOP_SIGALG_SUPPORTED},
1367 {"Shared Signature Algorithm", SSL_SECOP_SIGALG_SHARED},
1368 {"Check Signature Algorithm", SSL_SECOP_SIGALG_CHECK},
1369 {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
1370 {"Certificate chain EE key", SSL_SECOP_EE_KEY},
1371 {"Certificate chain CA key", SSL_SECOP_CA_KEY},
1372 {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
1373 {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
1374 {"Certificate chain CA digest", SSL_SECOP_CA_MD},
1375 {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
1376 {"SSL compression", SSL_SECOP_COMPRESSION},
1377 {"Session ticket", SSL_SECOP_TICKET},
1381 static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
1382 int op, int bits, int nid,
1383 void *other, void *ex)
1385 security_debug_ex *sdb = ex;
1386 int rv, show_bits = 1, cert_md = 0;
1389 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1390 if (rv == 1 && sdb->verbose < 2)
1392 BIO_puts(sdb->out, "Security callback: ");
1394 nm = lookup(op, callback_types, NULL);
1395 show_nm = nm != NULL;
1397 case SSL_SECOP_TICKET:
1398 case SSL_SECOP_COMPRESSION:
1402 case SSL_SECOP_VERSION:
1403 BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1407 case SSL_SECOP_CA_MD:
1408 case SSL_SECOP_PEER_CA_MD:
1411 case SSL_SECOP_SIGALG_SUPPORTED:
1412 case SSL_SECOP_SIGALG_SHARED:
1413 case SSL_SECOP_SIGALG_CHECK:
1414 case SSL_SECOP_SIGALG_MASK:
1419 BIO_printf(sdb->out, "%s=", nm);
1421 switch (op & SSL_SECOP_OTHER_TYPE) {
1423 case SSL_SECOP_OTHER_CIPHER:
1424 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1427 #ifndef OPENSSL_NO_EC
1428 case SSL_SECOP_OTHER_CURVE:
1431 cname = EC_curve_nid2nist(nid);
1433 cname = OBJ_nid2sn(nid);
1434 BIO_puts(sdb->out, cname);
1438 #ifndef OPENSSL_NO_DH
1439 case SSL_SECOP_OTHER_DH:
1442 EVP_PKEY *pkey = EVP_PKEY_new();
1446 if (EVP_PKEY_set1_DH(pkey, dh)) {
1447 BIO_printf(sdb->out, "%d", EVP_PKEY_bits(pkey));
1451 EVP_PKEY_free(pkey);
1454 BIO_printf(sdb->out, "s_cb.c:security_callback_debug op=0x%x",
1459 case SSL_SECOP_OTHER_CERT:
1462 int sig_nid = X509_get_signature_nid(other);
1463 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1465 EVP_PKEY *pkey = X509_get0_pubkey(other);
1466 const char *algname = "";
1467 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1468 &algname, EVP_PKEY_get0_asn1(pkey));
1469 BIO_printf(sdb->out, "%s, bits=%d",
1470 algname, EVP_PKEY_bits(pkey));
1474 case SSL_SECOP_OTHER_SIGALG:
1476 const unsigned char *salg = other;
1477 const char *sname = NULL;
1478 int raw_sig_code = (salg[0] << 8) + salg[1]; /* always big endian (msb, lsb) */
1479 /* raw_sig_code: signature_scheme from tls1.3, or signature_and_hash from tls1.2 */
1482 BIO_printf(sdb->out, "%s", nm);
1484 BIO_printf(sdb->out, "s_cb.c:security_callback_debug op=0x%x", op);
1486 sname = lookup(raw_sig_code, signature_tls13_scheme_list, NULL);
1487 if (sname != NULL) {
1488 BIO_printf(sdb->out, " scheme=%s", sname);
1490 int alg_code = salg[1];
1491 int hash_code = salg[0];
1492 const char *alg_str = lookup(alg_code, signature_tls12_alg_list, NULL);
1493 const char *hash_str = lookup(hash_code, signature_tls12_hash_list, NULL);
1495 if (alg_str != NULL && hash_str != NULL)
1496 BIO_printf(sdb->out, " digest=%s, algorithm=%s", hash_str, alg_str);
1498 BIO_printf(sdb->out, " scheme=unknown(0x%04x)", raw_sig_code);
1505 BIO_printf(sdb->out, ", security bits=%d", bits);
1506 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1510 void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1512 static security_debug_ex sdb;
1515 sdb.verbose = verbose;
1516 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1517 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1518 SSL_CTX_set0_security_ex_data(ctx, &sdb);
1521 static void keylog_callback(const SSL *ssl, const char *line)
1523 if (bio_keylog == NULL) {
1524 BIO_printf(bio_err, "Keylog callback is invoked without valid file!\n");
1529 * There might be concurrent writers to the keylog file, so we must ensure
1530 * that the given line is written at once.
1532 BIO_printf(bio_keylog, "%s\n", line);
1533 (void)BIO_flush(bio_keylog);
1536 int set_keylog_file(SSL_CTX *ctx, const char *keylog_file)
1538 /* Close any open files */
1539 BIO_free_all(bio_keylog);
1542 if (ctx == NULL || keylog_file == NULL) {
1543 /* Keylogging is disabled, OK. */
1548 * Append rather than write in order to allow concurrent modification.
1549 * Furthermore, this preserves existing keylog files which is useful when
1550 * the tool is run multiple times.
1552 bio_keylog = BIO_new_file(keylog_file, "a");
1553 if (bio_keylog == NULL) {
1554 BIO_printf(bio_err, "Error writing keylog file %s\n", keylog_file);
1558 /* Write a header for seekable, empty files (this excludes pipes). */
1559 if (BIO_tell(bio_keylog) == 0) {
1560 BIO_puts(bio_keylog,
1561 "# SSL/TLS secrets log file, generated by OpenSSL\n");
1562 (void)BIO_flush(bio_keylog);
1564 SSL_CTX_set_keylog_callback(ctx, keylog_callback);
1568 void print_ca_names(BIO *bio, SSL *s)
1570 const char *cs = SSL_is_server(s) ? "server" : "client";
1571 const STACK_OF(X509_NAME) *sk = SSL_get0_peer_CA_list(s);
1574 if (sk == NULL || sk_X509_NAME_num(sk) == 0) {
1575 if (!SSL_is_server(s))
1576 BIO_printf(bio, "---\nNo %s certificate CA names sent\n", cs);
1580 BIO_printf(bio, "---\nAcceptable %s certificate CA names\n",cs);
1581 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
1582 X509_NAME_print_ex(bio, sk_X509_NAME_value(sk, i), 0, get_nameopt());
1583 BIO_write(bio, "\n", 1);