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_get0_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_get0_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));
389 BIO_printf(out, "%s, %d bits\n", OBJ_nid2sn(EVP_PKEY_id(key)),
396 long bio_dump_callback(BIO *bio, int cmd, const char *argp,
397 int argi, long argl, long ret)
401 out = (BIO *)BIO_get_callback_arg(bio);
405 if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
406 BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
407 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
408 BIO_dump(out, argp, (int)ret);
410 } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
411 BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
412 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
413 BIO_dump(out, argp, (int)ret);
418 void apps_ssl_info_callback(const SSL *s, int where, int ret)
423 w = where & ~SSL_ST_MASK;
425 if (w & SSL_ST_CONNECT)
427 else if (w & SSL_ST_ACCEPT)
432 if (where & SSL_CB_LOOP) {
433 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
434 } else if (where & SSL_CB_ALERT) {
435 str = (where & SSL_CB_READ) ? "read" : "write";
436 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
438 SSL_alert_type_string_long(ret),
439 SSL_alert_desc_string_long(ret));
440 } else if (where & SSL_CB_EXIT) {
442 BIO_printf(bio_err, "%s:failed in %s\n",
443 str, SSL_state_string_long(s));
445 BIO_printf(bio_err, "%s:error in %s\n",
446 str, SSL_state_string_long(s));
451 static STRINT_PAIR ssl_versions[] = {
452 {"SSL 3.0", SSL3_VERSION},
453 {"TLS 1.0", TLS1_VERSION},
454 {"TLS 1.1", TLS1_1_VERSION},
455 {"TLS 1.2", TLS1_2_VERSION},
456 {"TLS 1.3", TLS1_3_VERSION},
457 {"DTLS 1.0", DTLS1_VERSION},
458 {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
461 static STRINT_PAIR alert_types[] = {
462 {" close_notify", 0},
463 {" unexpected_message", 10},
464 {" bad_record_mac", 20},
465 {" decryption_failed", 21},
466 {" record_overflow", 22},
467 {" decompression_failure", 30},
468 {" handshake_failure", 40},
469 {" bad_certificate", 42},
470 {" unsupported_certificate", 43},
471 {" certificate_revoked", 44},
472 {" certificate_expired", 45},
473 {" certificate_unknown", 46},
474 {" illegal_parameter", 47},
476 {" access_denied", 49},
477 {" decode_error", 50},
478 {" decrypt_error", 51},
479 {" export_restriction", 60},
480 {" protocol_version", 70},
481 {" insufficient_security", 71},
482 {" internal_error", 80},
483 {" user_canceled", 90},
484 {" no_renegotiation", 100},
485 {" unsupported_extension", 110},
486 {" certificate_unobtainable", 111},
487 {" unrecognized_name", 112},
488 {" bad_certificate_status_response", 113},
489 {" bad_certificate_hash_value", 114},
490 {" unknown_psk_identity", 115},
494 static STRINT_PAIR handshakes[] = {
495 {", HelloRequest", 0},
496 {", ClientHello", 1},
497 {", ServerHello", 2},
498 {", HelloVerifyRequest", 3},
499 {", NewSessionTicket", 4},
500 {", Certificate", 11},
501 {", ServerKeyExchange", 12},
502 {", CertificateRequest", 13},
503 {", ServerHelloDone", 14},
504 {", CertificateVerify", 15},
505 {", ClientKeyExchange", 16},
507 {", CertificateUrl", 21},
508 {", CertificateStatus", 22},
509 {", SupplementalData", 23},
513 void msg_cb(int write_p, int version, int content_type, const void *buf,
514 size_t len, SSL *ssl, void *arg)
517 const char *str_write_p = write_p ? ">>>" : "<<<";
518 const char *str_version = lookup(version, ssl_versions, "???");
519 const char *str_content_type = "", *str_details1 = "", *str_details2 = "";
520 const unsigned char* bp = buf;
522 if (version == SSL3_VERSION ||
523 version == TLS1_VERSION ||
524 version == TLS1_1_VERSION ||
525 version == TLS1_2_VERSION ||
526 version == TLS1_3_VERSION ||
527 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
528 switch (content_type) {
530 str_content_type = "ChangeCipherSpec";
533 str_content_type = "Alert";
534 str_details1 = ", ???";
538 str_details1 = ", warning";
541 str_details1 = ", fatal";
544 str_details2 = lookup((int)bp[1], alert_types, " ???");
548 str_content_type = "Handshake";
549 str_details1 = "???";
551 str_details1 = lookup((int)bp[0], handshakes, "???");
554 str_content_type = "ApplicationData";
556 #ifndef OPENSSL_NO_HEARTBEATS
558 str_details1 = ", Heartbeat";
563 str_details1 = ", HeartbeatRequest";
566 str_details1 = ", HeartbeatResponse";
575 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
576 str_content_type, (unsigned long)len, str_details1,
582 BIO_printf(bio, " ");
584 for (i = 0; i < num; i++) {
585 if (i % 16 == 0 && i > 0)
586 BIO_printf(bio, "\n ");
587 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
590 BIO_printf(bio, " ...");
591 BIO_printf(bio, "\n");
593 (void)BIO_flush(bio);
596 static STRINT_PAIR tlsext_types[] = {
597 {"server name", TLSEXT_TYPE_server_name},
598 {"max fragment length", TLSEXT_TYPE_max_fragment_length},
599 {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
600 {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
601 {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
602 {"status request", TLSEXT_TYPE_status_request},
603 {"user mapping", TLSEXT_TYPE_user_mapping},
604 {"client authz", TLSEXT_TYPE_client_authz},
605 {"server authz", TLSEXT_TYPE_server_authz},
606 {"cert type", TLSEXT_TYPE_cert_type},
607 {"elliptic curves", TLSEXT_TYPE_elliptic_curves},
608 {"EC point formats", TLSEXT_TYPE_ec_point_formats},
609 {"SRP", TLSEXT_TYPE_srp},
610 {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
611 {"use SRTP", TLSEXT_TYPE_use_srtp},
612 {"heartbeat", TLSEXT_TYPE_heartbeat},
613 {"session ticket", TLSEXT_TYPE_session_ticket},
614 {"renegotiation info", TLSEXT_TYPE_renegotiate},
615 {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp},
616 {"TLS padding", TLSEXT_TYPE_padding},
617 #ifdef TLSEXT_TYPE_next_proto_neg
618 {"next protocol", TLSEXT_TYPE_next_proto_neg},
620 #ifdef TLSEXT_TYPE_encrypt_then_mac
621 {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
623 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
624 {"application layer protocol negotiation",
625 TLSEXT_TYPE_application_layer_protocol_negotiation},
627 #ifdef TLSEXT_TYPE_extended_master_secret
628 {"extended master secret", TLSEXT_TYPE_extended_master_secret},
633 void tlsext_cb(SSL *s, int client_server, int type,
634 const unsigned char *data, int len, void *arg)
637 const char *extname = lookup(type, tlsext_types, "unknown");
639 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
640 client_server ? "server" : "client", extname, type, len);
641 BIO_dump(bio, (const char *)data, len);
642 (void)BIO_flush(bio);
645 #ifndef OPENSSL_NO_SOCK
646 int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
647 unsigned int *cookie_len)
649 unsigned char *buffer;
652 BIO_ADDR *peer = NULL;
654 /* Initialize a random secret */
655 if (!cookie_initialized) {
656 if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
657 BIO_printf(bio_err, "error setting random cookie secret\n");
660 cookie_initialized = 1;
663 peer = BIO_ADDR_new();
665 BIO_printf(bio_err, "memory full\n");
669 /* Read peer information */
670 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer);
672 /* Create buffer with peer's address and port */
673 BIO_ADDR_rawaddress(peer, NULL, &length);
674 OPENSSL_assert(length != 0);
675 port = BIO_ADDR_rawport(peer);
676 length += sizeof(port);
677 buffer = app_malloc(length, "cookie generate buffer");
679 memcpy(buffer, &port, sizeof(port));
680 BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL);
682 /* Calculate HMAC of buffer using the secret */
683 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
684 buffer, length, cookie, cookie_len);
686 OPENSSL_free(buffer);
692 int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
693 unsigned int cookie_len)
695 unsigned char result[EVP_MAX_MD_SIZE];
696 unsigned int resultlength;
698 /* Note: we check cookie_initialized because if it's not,
699 * it cannot be valid */
700 if (cookie_initialized
701 && generate_cookie_callback(ssl, result, &resultlength)
702 && cookie_len == resultlength
703 && memcmp(result, cookie, resultlength) == 0)
711 * Example of extended certificate handling. Where the standard support of
712 * one certificate per algorithm is not sufficient an application can decide
713 * which certificate(s) to use at runtime based on whatever criteria it deems
717 /* Linked list of certificates, keys and chains */
718 struct ssl_excert_st {
720 const char *certfile;
723 const char *chainfile;
726 STACK_OF(X509) *chain;
728 struct ssl_excert_st *next, *prev;
731 static STRINT_PAIR chain_flags[] = {
732 {"Overall Validity", CERT_PKEY_VALID},
733 {"Sign with EE key", CERT_PKEY_SIGN},
734 {"EE signature", CERT_PKEY_EE_SIGNATURE},
735 {"CA signature", CERT_PKEY_CA_SIGNATURE},
736 {"EE key parameters", CERT_PKEY_EE_PARAM},
737 {"CA key parameters", CERT_PKEY_CA_PARAM},
738 {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
739 {"Issuer Name", CERT_PKEY_ISSUER_NAME},
740 {"Certificate Type", CERT_PKEY_CERT_TYPE},
744 static void print_chain_flags(SSL *s, int flags)
748 for (pp = chain_flags; pp->name; ++pp)
749 BIO_printf(bio_err, "\t%s: %s\n",
751 (flags & pp->retval) ? "OK" : "NOT OK");
752 BIO_printf(bio_err, "\tSuite B: ");
753 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
754 BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
756 BIO_printf(bio_err, "not tested\n");
760 * Very basic selection callback: just use any certificate chain reported as
761 * valid. More sophisticated could prioritise according to local policy.
763 static int set_cert_cb(SSL *ssl, void *arg)
766 SSL_EXCERT *exc = arg;
767 #ifdef CERT_CB_TEST_RETRY
768 static int retry_cnt;
772 "Certificate callback retry test: count %d\n",
777 SSL_certs_clear(ssl);
783 * Go to end of list and traverse backwards since we prepend newer
784 * entries this retains the original order.
793 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
794 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
795 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
797 BIO_puts(bio_err, "\n");
798 print_chain_flags(ssl, rv);
799 if (rv & CERT_PKEY_VALID) {
800 if (!SSL_use_certificate(ssl, exc->cert)
801 || !SSL_use_PrivateKey(ssl, exc->key)) {
805 * NB: we wouldn't normally do this as it is not efficient
806 * building chains on each connection better to cache the chain
809 if (exc->build_chain) {
810 if (!SSL_build_cert_chain(ssl, 0))
812 } else if (exc->chain)
813 SSL_set1_chain(ssl, exc->chain);
820 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
822 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
825 static int ssl_excert_prepend(SSL_EXCERT **pexc)
827 SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
829 memset(exc, 0, sizeof(*exc));
835 exc->certform = exc->next->certform;
836 exc->keyform = exc->next->keyform;
837 exc->next->prev = exc;
839 exc->certform = FORMAT_PEM;
840 exc->keyform = FORMAT_PEM;
846 void ssl_excert_free(SSL_EXCERT *exc)
853 X509_free(exc->cert);
854 EVP_PKEY_free(exc->key);
855 sk_X509_pop_free(exc->chain, X509_free);
862 int load_excert(SSL_EXCERT **pexc)
864 SSL_EXCERT *exc = *pexc;
867 /* If nothing in list, free and set to NULL */
868 if (!exc->certfile && !exc->next) {
869 ssl_excert_free(exc);
873 for (; exc; exc = exc->next) {
874 if (!exc->certfile) {
875 BIO_printf(bio_err, "Missing filename\n");
878 exc->cert = load_cert(exc->certfile, exc->certform,
879 "Server Certificate");
883 exc->key = load_key(exc->keyfile, exc->keyform,
884 0, NULL, NULL, "Server Key");
886 exc->key = load_key(exc->certfile, exc->certform,
887 0, NULL, NULL, "Server Key");
891 if (exc->chainfile) {
892 if (!load_certs(exc->chainfile, &exc->chain, FORMAT_PEM, NULL,
900 enum range { OPT_X_ENUM };
902 int args_excert(int opt, SSL_EXCERT **pexc)
904 SSL_EXCERT *exc = *pexc;
906 assert(opt > OPT_X__FIRST);
907 assert(opt < OPT_X__LAST);
910 if (!ssl_excert_prepend(&exc)) {
911 BIO_printf(bio_err, " %s: Error initialising xcert\n",
918 switch ((enum range)opt) {
923 if (exc->certfile && !ssl_excert_prepend(&exc)) {
924 BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
927 exc->certfile = opt_arg();
931 BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
934 exc->keyfile = opt_arg();
937 if (exc->chainfile) {
938 BIO_printf(bio_err, "%s: Chain already specified\n",
942 exc->chainfile = opt_arg();
944 case OPT_X_CHAIN_BUILD:
945 exc->build_chain = 1;
948 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->certform))
952 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->keyform))
959 ERR_print_errors(bio_err);
960 ssl_excert_free(exc);
965 static void print_raw_cipherlist(SSL *s)
967 const unsigned char *rlist;
968 static const unsigned char scsv_id[] = { 0, 0xFF };
969 size_t i, rlistlen, num;
970 if (!SSL_is_server(s))
972 num = SSL_get0_raw_cipherlist(s, NULL);
973 OPENSSL_assert(num == 2);
974 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
975 BIO_puts(bio_err, "Client cipher list: ");
976 for (i = 0; i < rlistlen; i += num, rlist += num) {
977 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
979 BIO_puts(bio_err, ":");
981 BIO_puts(bio_err, SSL_CIPHER_get_name(c));
982 else if (!memcmp(rlist, scsv_id, num))
983 BIO_puts(bio_err, "SCSV");
986 BIO_puts(bio_err, "0x");
987 for (j = 0; j < num; j++)
988 BIO_printf(bio_err, "%02X", rlist[j]);
991 BIO_puts(bio_err, "\n");
995 * Hex encoder for TLSA RRdata, not ':' delimited.
997 static char *hexencode(const unsigned char *data, size_t len)
999 static const char *hex = "0123456789abcdef";
1002 size_t outlen = 2 * len + 1;
1003 int ilen = (int) outlen;
1005 if (outlen < len || ilen < 0 || outlen != (size_t)ilen) {
1006 BIO_printf(bio_err, "%s: %" PRIu64 "-byte buffer too large to hexencode\n",
1007 opt_getprog(), (uint64_t)len);
1010 cp = out = app_malloc(ilen, "TLSA hex data buffer");
1013 *cp++ = hex[(*data >> 4) & 0x0f];
1014 *cp++ = hex[*data++ & 0x0f];
1020 void print_verify_detail(SSL *s, BIO *bio)
1024 long verify_err = SSL_get_verify_result(s);
1026 if (verify_err == X509_V_OK) {
1027 const char *peername = SSL_get0_peername(s);
1029 BIO_printf(bio, "Verification: OK\n");
1030 if (peername != NULL)
1031 BIO_printf(bio, "Verified peername: %s\n", peername);
1033 const char *reason = X509_verify_cert_error_string(verify_err);
1035 BIO_printf(bio, "Verification error: %s\n", reason);
1038 if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) {
1039 uint8_t usage, selector, mtype;
1040 const unsigned char *data = NULL;
1044 mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen);
1047 * The TLSA data field can be quite long when it is a certificate,
1048 * public key or even a SHA2-512 digest. Because the initial octets of
1049 * ASN.1 certificates and public keys contain mostly boilerplate OIDs
1050 * and lengths, we show the last 12 bytes of the data instead, as these
1051 * are more likely to distinguish distinct TLSA records.
1053 #define TLSA_TAIL_SIZE 12
1054 if (dlen > TLSA_TAIL_SIZE)
1055 hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE);
1057 hexdata = hexencode(data, dlen);
1058 BIO_printf(bio, "DANE TLSA %d %d %d %s%s %s at depth %d\n",
1059 usage, selector, mtype,
1060 (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata,
1061 (mspki != NULL) ? "signed the certificate" :
1062 mdpth ? "matched TA certificate" : "matched EE certificate",
1064 OPENSSL_free(hexdata);
1068 void print_ssl_summary(SSL *s)
1070 const SSL_CIPHER *c;
1072 /* const char *pnam = SSL_is_server(s) ? "client" : "server"; */
1074 BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
1075 print_raw_cipherlist(s);
1076 c = SSL_get_current_cipher(s);
1077 BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1078 do_print_sigalgs(bio_err, s, 0);
1079 peer = SSL_get_peer_certificate(s);
1083 BIO_puts(bio_err, "Peer certificate: ");
1084 X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1085 0, XN_FLAG_ONELINE);
1086 BIO_puts(bio_err, "\n");
1087 if (SSL_get_peer_signature_nid(s, &nid))
1088 BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1089 print_verify_detail(s, bio_err);
1091 BIO_puts(bio_err, "No peer certificate\n");
1093 #ifndef OPENSSL_NO_EC
1094 ssl_print_point_formats(bio_err, s);
1095 if (SSL_is_server(s))
1096 ssl_print_curves(bio_err, s, 1);
1098 ssl_print_tmp_key(bio_err, s);
1100 if (!SSL_is_server(s))
1101 ssl_print_tmp_key(bio_err, s);
1105 int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
1110 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1111 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1112 const char *flag = sk_OPENSSL_STRING_value(str, i);
1113 const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
1114 if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
1116 BIO_printf(bio_err, "Error with command: \"%s %s\"\n",
1119 BIO_printf(bio_err, "Error with command: \"%s\"\n", flag);
1120 ERR_print_errors(bio_err);
1124 if (!SSL_CONF_CTX_finish(cctx)) {
1125 BIO_puts(bio_err, "Error finishing context\n");
1126 ERR_print_errors(bio_err);
1132 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1136 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1137 crl = sk_X509_CRL_value(crls, i);
1138 X509_STORE_add_crl(st, crl);
1143 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1146 st = SSL_CTX_get_cert_store(ctx);
1147 add_crls_store(st, crls);
1149 store_setup_crl_download(st);
1153 int ssl_load_stores(SSL_CTX *ctx,
1154 const char *vfyCApath, const char *vfyCAfile,
1155 const char *chCApath, const char *chCAfile,
1156 STACK_OF(X509_CRL) *crls, int crl_download)
1158 X509_STORE *vfy = NULL, *ch = NULL;
1160 if (vfyCApath != NULL || vfyCAfile != NULL) {
1161 vfy = X509_STORE_new();
1164 if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
1166 add_crls_store(vfy, crls);
1167 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1169 store_setup_crl_download(vfy);
1171 if (chCApath != NULL || chCAfile != NULL) {
1172 ch = X509_STORE_new();
1175 if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
1177 SSL_CTX_set1_chain_cert_store(ctx, ch);
1181 X509_STORE_free(vfy);
1182 X509_STORE_free(ch);
1186 /* Verbose print out of security callback */
1191 int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1192 void *other, void *ex);
1193 } security_debug_ex;
1195 static STRINT_PAIR callback_types[] = {
1196 {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
1197 {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
1198 {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
1199 #ifndef OPENSSL_NO_DH
1200 {"Temp DH key bits", SSL_SECOP_TMP_DH},
1202 {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
1203 {"Shared Curve", SSL_SECOP_CURVE_SHARED},
1204 {"Check Curve", SSL_SECOP_CURVE_CHECK},
1205 {"Supported Signature Algorithm digest", SSL_SECOP_SIGALG_SUPPORTED},
1206 {"Shared Signature Algorithm digest", SSL_SECOP_SIGALG_SHARED},
1207 {"Check Signature Algorithm digest", SSL_SECOP_SIGALG_CHECK},
1208 {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
1209 {"Certificate chain EE key", SSL_SECOP_EE_KEY},
1210 {"Certificate chain CA key", SSL_SECOP_CA_KEY},
1211 {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
1212 {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
1213 {"Certificate chain CA digest", SSL_SECOP_CA_MD},
1214 {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
1215 {"SSL compression", SSL_SECOP_COMPRESSION},
1216 {"Session ticket", SSL_SECOP_TICKET},
1220 static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
1221 int op, int bits, int nid,
1222 void *other, void *ex)
1224 security_debug_ex *sdb = ex;
1225 int rv, show_bits = 1, cert_md = 0;
1227 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1228 if (rv == 1 && sdb->verbose < 2)
1230 BIO_puts(sdb->out, "Security callback: ");
1232 nm = lookup(op, callback_types, NULL);
1234 case SSL_SECOP_TICKET:
1235 case SSL_SECOP_COMPRESSION:
1239 case SSL_SECOP_VERSION:
1240 BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1244 case SSL_SECOP_CA_MD:
1245 case SSL_SECOP_PEER_CA_MD:
1250 BIO_printf(sdb->out, "%s=", nm);
1252 switch (op & SSL_SECOP_OTHER_TYPE) {
1254 case SSL_SECOP_OTHER_CIPHER:
1255 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1258 #ifndef OPENSSL_NO_EC
1259 case SSL_SECOP_OTHER_CURVE:
1262 cname = EC_curve_nid2nist(nid);
1264 cname = OBJ_nid2sn(nid);
1265 BIO_puts(sdb->out, cname);
1269 #ifndef OPENSSL_NO_DH
1270 case SSL_SECOP_OTHER_DH:
1273 BIO_printf(sdb->out, "%d", DH_bits(dh));
1277 case SSL_SECOP_OTHER_CERT:
1280 int sig_nid = X509_get_signature_nid(other);
1281 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1283 EVP_PKEY *pkey = X509_get0_pubkey(other);
1284 const char *algname = "";
1285 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1286 &algname, EVP_PKEY_get0_asn1(pkey));
1287 BIO_printf(sdb->out, "%s, bits=%d",
1288 algname, EVP_PKEY_bits(pkey));
1292 case SSL_SECOP_OTHER_SIGALG:
1294 const unsigned char *salg = other;
1295 const char *sname = NULL;
1297 case TLSEXT_signature_anonymous:
1298 sname = "anonymous";
1300 case TLSEXT_signature_rsa:
1303 case TLSEXT_signature_dsa:
1306 case TLSEXT_signature_ecdsa:
1311 BIO_puts(sdb->out, OBJ_nid2sn(nid));
1313 BIO_printf(sdb->out, ", algorithm=%s", sname);
1315 BIO_printf(sdb->out, ", algid=%d", salg[1]);
1322 BIO_printf(sdb->out, ", security bits=%d", bits);
1323 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1327 void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1329 static security_debug_ex sdb;
1332 sdb.verbose = verbose;
1333 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1334 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1335 SSL_CTX_set0_security_ex_data(ctx, &sdb);