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
31 int verify_error = X509_V_OK;
32 int verify_return_error = 0;
33 #ifndef OPENSSL_NO_SOCK
34 static unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
35 static int cookie_initialized = 0;
38 static const char *lookup(int val, const STRINT_PAIR* list, const char* def)
40 for ( ; list->name; ++list)
41 if (list->retval == val)
46 int verify_callback(int ok, X509_STORE_CTX *ctx)
51 err_cert = X509_STORE_CTX_get_current_cert(ctx);
52 err = X509_STORE_CTX_get_error(ctx);
53 depth = X509_STORE_CTX_get_error_depth(ctx);
55 if (!verify_quiet || !ok) {
56 BIO_printf(bio_err, "depth=%d ", depth);
58 X509_NAME_print_ex(bio_err,
59 X509_get_subject_name(err_cert),
61 BIO_puts(bio_err, "\n");
63 BIO_puts(bio_err, "<no cert>\n");
66 BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
67 X509_verify_cert_error_string(err));
68 if (verify_depth >= depth) {
69 if (!verify_return_error)
74 verify_error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
78 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
79 BIO_puts(bio_err, "issuer= ");
80 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
82 BIO_puts(bio_err, "\n");
84 case X509_V_ERR_CERT_NOT_YET_VALID:
85 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
86 BIO_printf(bio_err, "notBefore=");
87 ASN1_TIME_print(bio_err, X509_get_notBefore(err_cert));
88 BIO_printf(bio_err, "\n");
90 case X509_V_ERR_CERT_HAS_EXPIRED:
91 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
92 BIO_printf(bio_err, "notAfter=");
93 ASN1_TIME_print(bio_err, X509_get_notAfter(err_cert));
94 BIO_printf(bio_err, "\n");
96 case X509_V_ERR_NO_EXPLICIT_POLICY:
101 if (err == X509_V_OK && ok == 2 && !verify_quiet)
103 if (ok && !verify_quiet)
104 BIO_printf(bio_err, "verify return:%d\n", ok);
108 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
110 if (cert_file != NULL) {
111 if (SSL_CTX_use_certificate_file(ctx, cert_file,
112 SSL_FILETYPE_PEM) <= 0) {
113 BIO_printf(bio_err, "unable to get certificate from '%s'\n",
115 ERR_print_errors(bio_err);
118 if (key_file == NULL)
119 key_file = cert_file;
120 if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
121 BIO_printf(bio_err, "unable to get private key from '%s'\n",
123 ERR_print_errors(bio_err);
128 * If we are using DSA, we can copy the parameters from the private
133 * Now we know that a key and cert have been set against the SSL
136 if (!SSL_CTX_check_private_key(ctx)) {
138 "Private key does not match the certificate public key\n");
145 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
146 STACK_OF(X509) *chain, int build_chain)
148 int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
151 if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
152 BIO_printf(bio_err, "error setting certificate\n");
153 ERR_print_errors(bio_err);
157 if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
158 BIO_printf(bio_err, "error setting private key\n");
159 ERR_print_errors(bio_err);
164 * Now we know that a key and cert have been set against the SSL context
166 if (!SSL_CTX_check_private_key(ctx)) {
168 "Private key does not match the certificate public key\n");
171 if (chain && !SSL_CTX_set1_chain(ctx, chain)) {
172 BIO_printf(bio_err, "error setting certificate chain\n");
173 ERR_print_errors(bio_err);
176 if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) {
177 BIO_printf(bio_err, "error building certificate chain\n");
178 ERR_print_errors(bio_err);
184 static STRINT_PAIR cert_type_list[] = {
185 {"RSA sign", TLS_CT_RSA_SIGN},
186 {"DSA sign", TLS_CT_DSS_SIGN},
187 {"RSA fixed DH", TLS_CT_RSA_FIXED_DH},
188 {"DSS fixed DH", TLS_CT_DSS_FIXED_DH},
189 {"ECDSA sign", TLS_CT_ECDSA_SIGN},
190 {"RSA fixed ECDH", TLS_CT_RSA_FIXED_ECDH},
191 {"ECDSA fixed ECDH", TLS_CT_ECDSA_FIXED_ECDH},
192 {"GOST01 Sign", TLS_CT_GOST01_SIGN},
196 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
198 const unsigned char *p;
200 int cert_type_num = SSL_get0_certificate_types(s, &p);
203 BIO_puts(bio, "Client Certificate Types: ");
204 for (i = 0; i < cert_type_num; i++) {
205 unsigned char cert_type = p[i];
206 const char *cname = lookup((int)cert_type, cert_type_list, NULL);
211 BIO_puts(bio, cname);
213 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
218 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
221 client = SSL_is_server(s) ? 0 : 1;
223 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
225 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
230 BIO_puts(out, "Shared ");
233 BIO_puts(out, "Requested ");
234 BIO_puts(out, "Signature Algorithms: ");
235 for (i = 0; i < nsig; i++) {
236 int hash_nid, sign_nid;
237 unsigned char rhash, rsign;
238 const char *sstr = NULL;
240 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
243 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
246 if (sign_nid == EVP_PKEY_RSA)
248 else if (sign_nid == EVP_PKEY_DSA)
250 else if (sign_nid == EVP_PKEY_EC)
253 BIO_printf(out, "%s+", sstr);
255 BIO_printf(out, "0x%02X+", (int)rsign);
256 if (hash_nid != NID_undef)
257 BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
259 BIO_printf(out, "0x%02X", (int)rhash);
265 int ssl_print_sigalgs(BIO *out, SSL *s)
268 if (!SSL_is_server(s))
269 ssl_print_client_cert_types(out, s);
270 do_print_sigalgs(out, s, 0);
271 do_print_sigalgs(out, s, 1);
272 if (SSL_get_peer_signature_nid(s, &mdnid))
273 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
277 #ifndef OPENSSL_NO_EC
278 int ssl_print_point_formats(BIO *out, SSL *s)
281 const char *pformats;
282 nformats = SSL_get0_ec_point_formats(s, &pformats);
285 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
286 for (i = 0; i < nformats; i++, pformats++) {
290 case TLSEXT_ECPOINTFORMAT_uncompressed:
291 BIO_puts(out, "uncompressed");
294 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
295 BIO_puts(out, "ansiX962_compressed_prime");
298 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
299 BIO_puts(out, "ansiX962_compressed_char2");
303 BIO_printf(out, "unknown(%d)", (int)*pformats);
312 int ssl_print_curves(BIO *out, SSL *s, int noshared)
314 int i, ncurves, *curves, nid;
317 ncurves = SSL_get1_curves(s, NULL);
320 curves = app_malloc(ncurves * sizeof(int), "curves to print");
321 SSL_get1_curves(s, curves);
323 BIO_puts(out, "Supported Elliptic Curves: ");
324 for (i = 0; i < ncurves; i++) {
328 /* If unrecognised print out hex version */
329 if (nid & TLSEXT_nid_unknown)
330 BIO_printf(out, "0x%04X", nid & 0xFFFF);
332 /* Use NIST name for curve if it exists */
333 cname = EC_curve_nid2nist(nid);
335 cname = OBJ_nid2sn(nid);
336 BIO_printf(out, "%s", cname);
339 OPENSSL_free(curves);
344 BIO_puts(out, "\nShared Elliptic curves: ");
345 ncurves = SSL_get_shared_curve(s, -1);
346 for (i = 0; i < ncurves; i++) {
349 nid = SSL_get_shared_curve(s, i);
350 cname = EC_curve_nid2nist(nid);
352 cname = OBJ_nid2sn(nid);
353 BIO_printf(out, "%s", cname);
356 BIO_puts(out, "NONE");
361 int ssl_print_tmp_key(BIO *out, SSL *s)
364 if (!SSL_get_server_tmp_key(s, &key))
366 BIO_puts(out, "Server Temp Key: ");
367 switch (EVP_PKEY_id(key)) {
369 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
373 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
375 #ifndef OPENSSL_NO_EC
378 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
381 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
383 cname = EC_curve_nid2nist(nid);
385 cname = OBJ_nid2sn(nid);
386 BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
394 long bio_dump_callback(BIO *bio, int cmd, const char *argp,
395 int argi, long argl, long ret)
399 out = (BIO *)BIO_get_callback_arg(bio);
403 if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
404 BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
405 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
406 BIO_dump(out, argp, (int)ret);
408 } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
409 BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
410 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
411 BIO_dump(out, argp, (int)ret);
416 void apps_ssl_info_callback(const SSL *s, int where, int ret)
421 w = where & ~SSL_ST_MASK;
423 if (w & SSL_ST_CONNECT)
425 else if (w & SSL_ST_ACCEPT)
430 if (where & SSL_CB_LOOP) {
431 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
432 } else if (where & SSL_CB_ALERT) {
433 str = (where & SSL_CB_READ) ? "read" : "write";
434 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
436 SSL_alert_type_string_long(ret),
437 SSL_alert_desc_string_long(ret));
438 } else if (where & SSL_CB_EXIT) {
440 BIO_printf(bio_err, "%s:failed in %s\n",
441 str, SSL_state_string_long(s));
443 BIO_printf(bio_err, "%s:error in %s\n",
444 str, SSL_state_string_long(s));
449 static STRINT_PAIR ssl_versions[] = {
450 {"SSL 3.0", SSL3_VERSION},
451 {"TLS 1.0", TLS1_VERSION},
452 {"TLS 1.1", TLS1_1_VERSION},
453 {"TLS 1.2", TLS1_2_VERSION},
454 {"DTLS 1.0", DTLS1_VERSION},
455 {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
458 static STRINT_PAIR alert_types[] = {
459 {" close_notify", 0},
460 {" unexpected_message", 10},
461 {" bad_record_mac", 20},
462 {" decryption_failed", 21},
463 {" record_overflow", 22},
464 {" decompression_failure", 30},
465 {" handshake_failure", 40},
466 {" bad_certificate", 42},
467 {" unsupported_certificate", 43},
468 {" certificate_revoked", 44},
469 {" certificate_expired", 45},
470 {" certificate_unknown", 46},
471 {" illegal_parameter", 47},
473 {" access_denied", 49},
474 {" decode_error", 50},
475 {" decrypt_error", 51},
476 {" export_restriction", 60},
477 {" protocol_version", 70},
478 {" insufficient_security", 71},
479 {" internal_error", 80},
480 {" user_canceled", 90},
481 {" no_renegotiation", 100},
482 {" unsupported_extension", 110},
483 {" certificate_unobtainable", 111},
484 {" unrecognized_name", 112},
485 {" bad_certificate_status_response", 113},
486 {" bad_certificate_hash_value", 114},
487 {" unknown_psk_identity", 115},
491 static STRINT_PAIR handshakes[] = {
492 {", HelloRequest", 0},
493 {", ClientHello", 1},
494 {", ServerHello", 2},
495 {", HelloVerifyRequest", 3},
496 {", NewSessionTicket", 4},
497 {", Certificate", 11},
498 {", ServerKeyExchange", 12},
499 {", CertificateRequest", 13},
500 {", ServerHelloDone", 14},
501 {", CertificateVerify", 15},
502 {", ClientKeyExchange", 16},
504 {", CertificateUrl", 21},
505 {", CertificateStatus", 22},
506 {", SupplementalData", 23},
510 void msg_cb(int write_p, int version, int content_type, const void *buf,
511 size_t len, SSL *ssl, void *arg)
514 const char *str_write_p = write_p ? ">>>" : "<<<";
515 const char *str_version = lookup(version, ssl_versions, "???");
516 const char *str_content_type = "", *str_details1 = "", *str_details2 = "";
517 const unsigned char* bp = buf;
519 if (version == SSL3_VERSION ||
520 version == TLS1_VERSION ||
521 version == TLS1_1_VERSION ||
522 version == TLS1_2_VERSION ||
523 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
524 switch (content_type) {
526 str_content_type = "ChangeCipherSpec";
529 str_content_type = "Alert";
530 str_details1 = ", ???";
534 str_details1 = ", warning";
537 str_details1 = ", fatal";
540 str_details2 = lookup((int)bp[1], alert_types, " ???");
544 str_content_type = "Handshake";
545 str_details1 = "???";
547 str_details1 = lookup((int)bp[0], handshakes, "???");
550 str_content_type = "ApplicationData";
552 #ifndef OPENSSL_NO_HEARTBEATS
554 str_details1 = ", Heartbeat";
559 str_details1 = ", HeartbeatRequest";
562 str_details1 = ", HeartbeatResponse";
571 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
572 str_content_type, (unsigned long)len, str_details1,
578 BIO_printf(bio, " ");
580 for (i = 0; i < num; i++) {
581 if (i % 16 == 0 && i > 0)
582 BIO_printf(bio, "\n ");
583 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
586 BIO_printf(bio, " ...");
587 BIO_printf(bio, "\n");
589 (void)BIO_flush(bio);
592 static STRINT_PAIR tlsext_types[] = {
593 {"server name", TLSEXT_TYPE_server_name},
594 {"max fragment length", TLSEXT_TYPE_max_fragment_length},
595 {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
596 {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
597 {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
598 {"status request", TLSEXT_TYPE_status_request},
599 {"user mapping", TLSEXT_TYPE_user_mapping},
600 {"client authz", TLSEXT_TYPE_client_authz},
601 {"server authz", TLSEXT_TYPE_server_authz},
602 {"cert type", TLSEXT_TYPE_cert_type},
603 {"elliptic curves", TLSEXT_TYPE_elliptic_curves},
604 {"EC point formats", TLSEXT_TYPE_ec_point_formats},
605 {"SRP", TLSEXT_TYPE_srp},
606 {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
607 {"use SRTP", TLSEXT_TYPE_use_srtp},
608 {"heartbeat", TLSEXT_TYPE_heartbeat},
609 {"session ticket", TLSEXT_TYPE_session_ticket},
610 {"renegotiation info", TLSEXT_TYPE_renegotiate},
611 {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp},
612 {"TLS padding", TLSEXT_TYPE_padding},
613 #ifdef TLSEXT_TYPE_next_proto_neg
614 {"next protocol", TLSEXT_TYPE_next_proto_neg},
616 #ifdef TLSEXT_TYPE_encrypt_then_mac
617 {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
619 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
620 {"application layer protocol negotiation",
621 TLSEXT_TYPE_application_layer_protocol_negotiation},
623 #ifdef TLSEXT_TYPE_extended_master_secret
624 {"extended master secret", TLSEXT_TYPE_extended_master_secret},
629 void tlsext_cb(SSL *s, int client_server, int type,
630 const unsigned char *data, int len, void *arg)
633 const char *extname = lookup(type, tlsext_types, "unknown");
635 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
636 client_server ? "server" : "client", extname, type, len);
637 BIO_dump(bio, (const char *)data, len);
638 (void)BIO_flush(bio);
641 #ifndef OPENSSL_NO_SOCK
642 int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
643 unsigned int *cookie_len)
645 unsigned char *buffer;
648 BIO_ADDR *peer = NULL;
650 /* Initialize a random secret */
651 if (!cookie_initialized) {
652 if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
653 BIO_printf(bio_err, "error setting random cookie secret\n");
656 cookie_initialized = 1;
659 peer = BIO_ADDR_new();
661 BIO_printf(bio_err, "memory full\n");
665 /* Read peer information */
666 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer);
668 /* Create buffer with peer's address and port */
669 BIO_ADDR_rawaddress(peer, NULL, &length);
670 OPENSSL_assert(length != 0);
671 port = BIO_ADDR_rawport(peer);
672 length += sizeof(port);
673 buffer = app_malloc(length, "cookie generate buffer");
675 memcpy(buffer, &port, sizeof(port));
676 BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL);
678 /* Calculate HMAC of buffer using the secret */
679 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
680 buffer, length, cookie, cookie_len);
682 OPENSSL_free(buffer);
688 int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
689 unsigned int cookie_len)
691 unsigned char result[EVP_MAX_MD_SIZE];
692 unsigned int resultlength;
694 /* Note: we check cookie_initialized because if it's not,
695 * it cannot be valid */
696 if (cookie_initialized
697 && generate_cookie_callback(ssl, result, &resultlength)
698 && cookie_len == resultlength
699 && memcmp(result, cookie, resultlength) == 0)
707 * Example of extended certificate handling. Where the standard support of
708 * one certificate per algorithm is not sufficient an application can decide
709 * which certificate(s) to use at runtime based on whatever criteria it deems
713 /* Linked list of certificates, keys and chains */
714 struct ssl_excert_st {
716 const char *certfile;
719 const char *chainfile;
722 STACK_OF(X509) *chain;
724 struct ssl_excert_st *next, *prev;
727 static STRINT_PAIR chain_flags[] = {
728 {"Overall Validity", CERT_PKEY_VALID},
729 {"Sign with EE key", CERT_PKEY_SIGN},
730 {"EE signature", CERT_PKEY_EE_SIGNATURE},
731 {"CA signature", CERT_PKEY_CA_SIGNATURE},
732 {"EE key parameters", CERT_PKEY_EE_PARAM},
733 {"CA key parameters", CERT_PKEY_CA_PARAM},
734 {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
735 {"Issuer Name", CERT_PKEY_ISSUER_NAME},
736 {"Certificate Type", CERT_PKEY_CERT_TYPE},
740 static void print_chain_flags(SSL *s, int flags)
744 for (pp = chain_flags; pp->name; ++pp)
745 BIO_printf(bio_err, "\t%s: %s\n",
747 (flags & pp->retval) ? "OK" : "NOT OK");
748 BIO_printf(bio_err, "\tSuite B: ");
749 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
750 BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
752 BIO_printf(bio_err, "not tested\n");
756 * Very basic selection callback: just use any certificate chain reported as
757 * valid. More sophisticated could prioritise according to local policy.
759 static int set_cert_cb(SSL *ssl, void *arg)
762 SSL_EXCERT *exc = arg;
763 #ifdef CERT_CB_TEST_RETRY
764 static int retry_cnt;
768 "Certificate callback retry test: count %d\n",
773 SSL_certs_clear(ssl);
779 * Go to end of list and traverse backwards since we prepend newer
780 * entries this retains the original order.
789 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
790 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
791 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
793 BIO_puts(bio_err, "\n");
794 print_chain_flags(ssl, rv);
795 if (rv & CERT_PKEY_VALID) {
796 if (!SSL_use_certificate(ssl, exc->cert)
797 || !SSL_use_PrivateKey(ssl, exc->key)) {
801 * NB: we wouldn't normally do this as it is not efficient
802 * building chains on each connection better to cache the chain
805 if (exc->build_chain) {
806 if (!SSL_build_cert_chain(ssl, 0))
808 } else if (exc->chain)
809 SSL_set1_chain(ssl, exc->chain);
816 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
818 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
821 static int ssl_excert_prepend(SSL_EXCERT **pexc)
823 SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
825 memset(exc, 0, sizeof(*exc));
831 exc->certform = exc->next->certform;
832 exc->keyform = exc->next->keyform;
833 exc->next->prev = exc;
835 exc->certform = FORMAT_PEM;
836 exc->keyform = FORMAT_PEM;
842 void ssl_excert_free(SSL_EXCERT *exc)
849 X509_free(exc->cert);
850 EVP_PKEY_free(exc->key);
851 sk_X509_pop_free(exc->chain, X509_free);
858 int load_excert(SSL_EXCERT **pexc)
860 SSL_EXCERT *exc = *pexc;
863 /* If nothing in list, free and set to NULL */
864 if (!exc->certfile && !exc->next) {
865 ssl_excert_free(exc);
869 for (; exc; exc = exc->next) {
870 if (!exc->certfile) {
871 BIO_printf(bio_err, "Missing filename\n");
874 exc->cert = load_cert(exc->certfile, exc->certform,
875 "Server Certificate");
879 exc->key = load_key(exc->keyfile, exc->keyform,
880 0, NULL, NULL, "Server Key");
882 exc->key = load_key(exc->certfile, exc->certform,
883 0, NULL, NULL, "Server Key");
887 if (exc->chainfile) {
888 if (!load_certs(exc->chainfile, &exc->chain, FORMAT_PEM, NULL,
896 enum range { OPT_X_ENUM };
898 int args_excert(int opt, SSL_EXCERT **pexc)
900 SSL_EXCERT *exc = *pexc;
902 assert(opt > OPT_X__FIRST);
903 assert(opt < OPT_X__LAST);
906 if (!ssl_excert_prepend(&exc)) {
907 BIO_printf(bio_err, " %s: Error initialising xcert\n",
914 switch ((enum range)opt) {
919 if (exc->certfile && !ssl_excert_prepend(&exc)) {
920 BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
923 exc->certfile = opt_arg();
927 BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
930 exc->keyfile = opt_arg();
933 if (exc->chainfile) {
934 BIO_printf(bio_err, "%s: Chain already specified\n",
938 exc->chainfile = opt_arg();
940 case OPT_X_CHAIN_BUILD:
941 exc->build_chain = 1;
944 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->certform))
948 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->keyform))
955 ERR_print_errors(bio_err);
956 ssl_excert_free(exc);
961 static void print_raw_cipherlist(SSL *s)
963 const unsigned char *rlist;
964 static const unsigned char scsv_id[] = { 0, 0xFF };
965 size_t i, rlistlen, num;
966 if (!SSL_is_server(s))
968 num = SSL_get0_raw_cipherlist(s, NULL);
969 OPENSSL_assert(num == 2);
970 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
971 BIO_puts(bio_err, "Client cipher list: ");
972 for (i = 0; i < rlistlen; i += num, rlist += num) {
973 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
975 BIO_puts(bio_err, ":");
977 BIO_puts(bio_err, SSL_CIPHER_get_name(c));
978 else if (!memcmp(rlist, scsv_id, num))
979 BIO_puts(bio_err, "SCSV");
982 BIO_puts(bio_err, "0x");
983 for (j = 0; j < num; j++)
984 BIO_printf(bio_err, "%02X", rlist[j]);
987 BIO_puts(bio_err, "\n");
991 * Hex encoder for TLSA RRdata, not ':' delimited.
993 static char *hexencode(const unsigned char *data, size_t len)
995 static const char *hex = "0123456789abcdef";
998 size_t outlen = 2 * len + 1;
999 int ilen = (int) outlen;
1001 if (outlen < len || ilen < 0 || outlen != (size_t)ilen) {
1002 BIO_printf(bio_err, "%s: %" PRIu64 "-byte buffer too large to hexencode\n",
1003 opt_getprog(), (uint64_t)len);
1006 cp = out = app_malloc(ilen, "TLSA hex data buffer");
1009 *cp++ = hex[(*data >> 4) & 0x0f];
1010 *cp++ = hex[*data++ & 0x0f];
1016 void print_verify_detail(SSL *s, BIO *bio)
1020 long verify_err = SSL_get_verify_result(s);
1022 if (verify_err == X509_V_OK) {
1023 const char *peername = SSL_get0_peername(s);
1025 BIO_printf(bio, "Verification: OK\n");
1026 if (peername != NULL)
1027 BIO_printf(bio, "Verified peername: %s\n", peername);
1029 const char *reason = X509_verify_cert_error_string(verify_err);
1031 BIO_printf(bio, "Verification error: %s\n", reason);
1034 if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) {
1035 uint8_t usage, selector, mtype;
1036 const unsigned char *data = NULL;
1040 mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen);
1043 * The TLSA data field can be quite long when it is a certificate,
1044 * public key or even a SHA2-512 digest. Because the initial octets of
1045 * ASN.1 certificates and public keys contain mostly boilerplate OIDs
1046 * and lengths, we show the last 12 bytes of the data instead, as these
1047 * are more likely to distinguish distinct TLSA records.
1049 #define TLSA_TAIL_SIZE 12
1050 if (dlen > TLSA_TAIL_SIZE)
1051 hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE);
1053 hexdata = hexencode(data, dlen);
1054 BIO_printf(bio, "DANE TLSA %d %d %d %s%s %s at depth %d\n",
1055 usage, selector, mtype,
1056 (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata,
1057 (mspki != NULL) ? "signed the certificate" :
1058 mdpth ? "matched TA certificate" : "matched EE certificate",
1060 OPENSSL_free(hexdata);
1064 void print_ssl_summary(SSL *s)
1066 const SSL_CIPHER *c;
1068 /* const char *pnam = SSL_is_server(s) ? "client" : "server"; */
1070 BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
1071 print_raw_cipherlist(s);
1072 c = SSL_get_current_cipher(s);
1073 BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1074 do_print_sigalgs(bio_err, s, 0);
1075 peer = SSL_get_peer_certificate(s);
1079 BIO_puts(bio_err, "Peer certificate: ");
1080 X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1081 0, XN_FLAG_ONELINE);
1082 BIO_puts(bio_err, "\n");
1083 if (SSL_get_peer_signature_nid(s, &nid))
1084 BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1085 print_verify_detail(s, bio_err);
1087 BIO_puts(bio_err, "No peer certificate\n");
1089 #ifndef OPENSSL_NO_EC
1090 ssl_print_point_formats(bio_err, s);
1091 if (SSL_is_server(s))
1092 ssl_print_curves(bio_err, s, 1);
1094 ssl_print_tmp_key(bio_err, s);
1096 if (!SSL_is_server(s))
1097 ssl_print_tmp_key(bio_err, s);
1101 int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
1106 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1107 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1108 const char *flag = sk_OPENSSL_STRING_value(str, i);
1109 const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
1110 if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
1112 BIO_printf(bio_err, "Error with command: \"%s %s\"\n",
1115 BIO_printf(bio_err, "Error with command: \"%s\"\n", flag);
1116 ERR_print_errors(bio_err);
1120 if (!SSL_CONF_CTX_finish(cctx)) {
1121 BIO_puts(bio_err, "Error finishing context\n");
1122 ERR_print_errors(bio_err);
1128 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1132 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1133 crl = sk_X509_CRL_value(crls, i);
1134 X509_STORE_add_crl(st, crl);
1139 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1142 st = SSL_CTX_get_cert_store(ctx);
1143 add_crls_store(st, crls);
1145 store_setup_crl_download(st);
1149 int ssl_load_stores(SSL_CTX *ctx,
1150 const char *vfyCApath, const char *vfyCAfile,
1151 const char *chCApath, const char *chCAfile,
1152 STACK_OF(X509_CRL) *crls, int crl_download)
1154 X509_STORE *vfy = NULL, *ch = NULL;
1156 if (vfyCApath != NULL || vfyCAfile != NULL) {
1157 vfy = X509_STORE_new();
1160 if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
1162 add_crls_store(vfy, crls);
1163 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1165 store_setup_crl_download(vfy);
1167 if (chCApath != NULL || chCAfile != NULL) {
1168 ch = X509_STORE_new();
1171 if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
1173 SSL_CTX_set1_chain_cert_store(ctx, ch);
1177 X509_STORE_free(vfy);
1178 X509_STORE_free(ch);
1182 /* Verbose print out of security callback */
1187 int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1188 void *other, void *ex);
1189 } security_debug_ex;
1191 static STRINT_PAIR callback_types[] = {
1192 {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
1193 {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
1194 {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
1195 #ifndef OPENSSL_NO_DH
1196 {"Temp DH key bits", SSL_SECOP_TMP_DH},
1198 {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
1199 {"Shared Curve", SSL_SECOP_CURVE_SHARED},
1200 {"Check Curve", SSL_SECOP_CURVE_CHECK},
1201 {"Supported Signature Algorithm digest", SSL_SECOP_SIGALG_SUPPORTED},
1202 {"Shared Signature Algorithm digest", SSL_SECOP_SIGALG_SHARED},
1203 {"Check Signature Algorithm digest", SSL_SECOP_SIGALG_CHECK},
1204 {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
1205 {"Certificate chain EE key", SSL_SECOP_EE_KEY},
1206 {"Certificate chain CA key", SSL_SECOP_CA_KEY},
1207 {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
1208 {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
1209 {"Certificate chain CA digest", SSL_SECOP_CA_MD},
1210 {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
1211 {"SSL compression", SSL_SECOP_COMPRESSION},
1212 {"Session ticket", SSL_SECOP_TICKET},
1216 static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
1217 int op, int bits, int nid,
1218 void *other, void *ex)
1220 security_debug_ex *sdb = ex;
1221 int rv, show_bits = 1, cert_md = 0;
1223 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1224 if (rv == 1 && sdb->verbose < 2)
1226 BIO_puts(sdb->out, "Security callback: ");
1228 nm = lookup(op, callback_types, NULL);
1230 case SSL_SECOP_TICKET:
1231 case SSL_SECOP_COMPRESSION:
1235 case SSL_SECOP_VERSION:
1236 BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1240 case SSL_SECOP_CA_MD:
1241 case SSL_SECOP_PEER_CA_MD:
1246 BIO_printf(sdb->out, "%s=", nm);
1248 switch (op & SSL_SECOP_OTHER_TYPE) {
1250 case SSL_SECOP_OTHER_CIPHER:
1251 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1254 #ifndef OPENSSL_NO_EC
1255 case SSL_SECOP_OTHER_CURVE:
1258 cname = EC_curve_nid2nist(nid);
1260 cname = OBJ_nid2sn(nid);
1261 BIO_puts(sdb->out, cname);
1265 #ifndef OPENSSL_NO_DH
1266 case SSL_SECOP_OTHER_DH:
1269 BIO_printf(sdb->out, "%d", DH_bits(dh));
1273 case SSL_SECOP_OTHER_CERT:
1276 int sig_nid = X509_get_signature_nid(other);
1277 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1279 EVP_PKEY *pkey = X509_get0_pubkey(other);
1280 const char *algname = "";
1281 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1282 &algname, EVP_PKEY_get0_asn1(pkey));
1283 BIO_printf(sdb->out, "%s, bits=%d",
1284 algname, EVP_PKEY_bits(pkey));
1288 case SSL_SECOP_OTHER_SIGALG:
1290 const unsigned char *salg = other;
1291 const char *sname = NULL;
1293 case TLSEXT_signature_anonymous:
1294 sname = "anonymous";
1296 case TLSEXT_signature_rsa:
1299 case TLSEXT_signature_dsa:
1302 case TLSEXT_signature_ecdsa:
1307 BIO_puts(sdb->out, OBJ_nid2sn(nid));
1309 BIO_printf(sdb->out, ", algorithm=%s", sname);
1311 BIO_printf(sdb->out, ", algid=%d", salg[1]);
1318 BIO_printf(sdb->out, ", security bits=%d", bits);
1319 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1323 void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1325 static security_debug_ex sdb;
1328 sdb.verbose = verbose;
1329 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1330 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1331 SSL_CTX_set0_security_ex_data(ctx, &sdb);