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_RSA_PSS)
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_groups(BIO *out, SSL *s, int noshared)
314 int i, ngroups, *groups, nid;
317 ngroups = SSL_get1_groups(s, NULL);
320 groups = app_malloc(ngroups * sizeof(int), "groups to print");
321 SSL_get1_groups(s, groups);
323 BIO_puts(out, "Supported Elliptic Groups: ");
324 for (i = 0; i < ngroups; i++) {
328 /* If unrecognised print out hex version */
329 if (nid & TLSEXT_nid_unknown)
330 BIO_printf(out, "0x%04X", nid & 0xFFFF);
332 /* TODO(TLS1.3): Get group name here */
333 /* Use NIST name for curve if it exists */
334 gname = EC_curve_nid2nist(nid);
336 gname = OBJ_nid2sn(nid);
337 BIO_printf(out, "%s", gname);
340 OPENSSL_free(groups);
345 BIO_puts(out, "\nShared Elliptic groups: ");
346 ngroups = SSL_get_shared_group(s, -1);
347 for (i = 0; i < ngroups; i++) {
350 nid = SSL_get_shared_group(s, i);
351 /* TODO(TLS1.3): Convert for DH groups */
352 gname = EC_curve_nid2nist(nid);
354 gname = OBJ_nid2sn(nid);
355 BIO_printf(out, "%s", gname);
358 BIO_puts(out, "NONE");
363 int ssl_print_tmp_key(BIO *out, SSL *s)
366 if (!SSL_get_server_tmp_key(s, &key))
368 BIO_puts(out, "Server Temp Key: ");
369 switch (EVP_PKEY_id(key)) {
371 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
375 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
377 #ifndef OPENSSL_NO_EC
380 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
383 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
385 cname = EC_curve_nid2nist(nid);
387 cname = OBJ_nid2sn(nid);
388 BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
393 BIO_printf(out, "%s, %d bits\n", OBJ_nid2sn(EVP_PKEY_id(key)),
400 long bio_dump_callback(BIO *bio, int cmd, const char *argp,
401 int argi, long argl, long ret)
405 out = (BIO *)BIO_get_callback_arg(bio);
409 if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
410 BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
411 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
412 BIO_dump(out, argp, (int)ret);
414 } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
415 BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
416 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
417 BIO_dump(out, argp, (int)ret);
422 void apps_ssl_info_callback(const SSL *s, int where, int ret)
427 w = where & ~SSL_ST_MASK;
429 if (w & SSL_ST_CONNECT)
431 else if (w & SSL_ST_ACCEPT)
436 if (where & SSL_CB_LOOP) {
437 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
438 } else if (where & SSL_CB_ALERT) {
439 str = (where & SSL_CB_READ) ? "read" : "write";
440 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
442 SSL_alert_type_string_long(ret),
443 SSL_alert_desc_string_long(ret));
444 } else if (where & SSL_CB_EXIT) {
446 BIO_printf(bio_err, "%s:failed in %s\n",
447 str, SSL_state_string_long(s));
449 BIO_printf(bio_err, "%s:error in %s\n",
450 str, SSL_state_string_long(s));
455 static STRINT_PAIR ssl_versions[] = {
456 {"SSL 3.0", SSL3_VERSION},
457 {"TLS 1.0", TLS1_VERSION},
458 {"TLS 1.1", TLS1_1_VERSION},
459 {"TLS 1.2", TLS1_2_VERSION},
460 {"TLS 1.3", TLS1_3_VERSION},
461 {"DTLS 1.0", DTLS1_VERSION},
462 {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
465 static STRINT_PAIR alert_types[] = {
466 {" close_notify", 0},
467 {" unexpected_message", 10},
468 {" bad_record_mac", 20},
469 {" decryption_failed", 21},
470 {" record_overflow", 22},
471 {" decompression_failure", 30},
472 {" handshake_failure", 40},
473 {" bad_certificate", 42},
474 {" unsupported_certificate", 43},
475 {" certificate_revoked", 44},
476 {" certificate_expired", 45},
477 {" certificate_unknown", 46},
478 {" illegal_parameter", 47},
480 {" access_denied", 49},
481 {" decode_error", 50},
482 {" decrypt_error", 51},
483 {" export_restriction", 60},
484 {" protocol_version", 70},
485 {" insufficient_security", 71},
486 {" internal_error", 80},
487 {" user_canceled", 90},
488 {" no_renegotiation", 100},
489 {" unsupported_extension", 110},
490 {" certificate_unobtainable", 111},
491 {" unrecognized_name", 112},
492 {" bad_certificate_status_response", 113},
493 {" bad_certificate_hash_value", 114},
494 {" unknown_psk_identity", 115},
498 static STRINT_PAIR handshakes[] = {
499 {", HelloRequest", 0},
500 {", ClientHello", 1},
501 {", ServerHello", 2},
502 {", HelloVerifyRequest", 3},
503 {", NewSessionTicket", 4},
504 {", Certificate", 11},
505 {", ServerKeyExchange", 12},
506 {", CertificateRequest", 13},
507 {", ServerHelloDone", 14},
508 {", CertificateVerify", 15},
509 {", ClientKeyExchange", 16},
511 {", CertificateUrl", 21},
512 {", CertificateStatus", 22},
513 {", SupplementalData", 23},
517 void msg_cb(int write_p, int version, int content_type, const void *buf,
518 size_t len, SSL *ssl, void *arg)
521 const char *str_write_p = write_p ? ">>>" : "<<<";
522 const char *str_version = lookup(version, ssl_versions, "???");
523 const char *str_content_type = "", *str_details1 = "", *str_details2 = "";
524 const unsigned char* bp = buf;
526 if (version == SSL3_VERSION ||
527 version == TLS1_VERSION ||
528 version == TLS1_1_VERSION ||
529 version == TLS1_2_VERSION ||
530 version == TLS1_3_VERSION ||
531 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
532 switch (content_type) {
534 str_content_type = "ChangeCipherSpec";
537 str_content_type = "Alert";
538 str_details1 = ", ???";
542 str_details1 = ", warning";
545 str_details1 = ", fatal";
548 str_details2 = lookup((int)bp[1], alert_types, " ???");
552 str_content_type = "Handshake";
553 str_details1 = "???";
555 str_details1 = lookup((int)bp[0], handshakes, "???");
558 str_content_type = "ApplicationData";
560 #ifndef OPENSSL_NO_HEARTBEATS
562 str_details1 = ", Heartbeat";
567 str_details1 = ", HeartbeatRequest";
570 str_details1 = ", HeartbeatResponse";
579 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
580 str_content_type, (unsigned long)len, str_details1,
586 BIO_printf(bio, " ");
588 for (i = 0; i < num; i++) {
589 if (i % 16 == 0 && i > 0)
590 BIO_printf(bio, "\n ");
591 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
594 BIO_printf(bio, " ...");
595 BIO_printf(bio, "\n");
597 (void)BIO_flush(bio);
600 static STRINT_PAIR tlsext_types[] = {
601 {"server name", TLSEXT_TYPE_server_name},
602 {"max fragment length", TLSEXT_TYPE_max_fragment_length},
603 {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
604 {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
605 {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
606 {"status request", TLSEXT_TYPE_status_request},
607 {"user mapping", TLSEXT_TYPE_user_mapping},
608 {"client authz", TLSEXT_TYPE_client_authz},
609 {"server authz", TLSEXT_TYPE_server_authz},
610 {"cert type", TLSEXT_TYPE_cert_type},
611 {"supported_groups", TLSEXT_TYPE_supported_groups},
612 {"EC point formats", TLSEXT_TYPE_ec_point_formats},
613 {"SRP", TLSEXT_TYPE_srp},
614 {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
615 {"use SRTP", TLSEXT_TYPE_use_srtp},
616 {"heartbeat", TLSEXT_TYPE_heartbeat},
617 {"session ticket", TLSEXT_TYPE_session_ticket},
618 {"renegotiation info", TLSEXT_TYPE_renegotiate},
619 {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp},
620 {"TLS padding", TLSEXT_TYPE_padding},
621 #ifdef TLSEXT_TYPE_next_proto_neg
622 {"next protocol", TLSEXT_TYPE_next_proto_neg},
624 #ifdef TLSEXT_TYPE_encrypt_then_mac
625 {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
627 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
628 {"application layer protocol negotiation",
629 TLSEXT_TYPE_application_layer_protocol_negotiation},
631 #ifdef TLSEXT_TYPE_extended_master_secret
632 {"extended master secret", TLSEXT_TYPE_extended_master_secret},
637 void tlsext_cb(SSL *s, int client_server, int type,
638 const unsigned char *data, int len, void *arg)
641 const char *extname = lookup(type, tlsext_types, "unknown");
643 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
644 client_server ? "server" : "client", extname, type, len);
645 BIO_dump(bio, (const char *)data, len);
646 (void)BIO_flush(bio);
649 #ifndef OPENSSL_NO_SOCK
650 int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
651 unsigned int *cookie_len)
653 unsigned char *buffer;
656 BIO_ADDR *peer = NULL;
658 /* Initialize a random secret */
659 if (!cookie_initialized) {
660 if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
661 BIO_printf(bio_err, "error setting random cookie secret\n");
664 cookie_initialized = 1;
667 peer = BIO_ADDR_new();
669 BIO_printf(bio_err, "memory full\n");
673 /* Read peer information */
674 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer);
676 /* Create buffer with peer's address and port */
677 BIO_ADDR_rawaddress(peer, NULL, &length);
678 OPENSSL_assert(length != 0);
679 port = BIO_ADDR_rawport(peer);
680 length += sizeof(port);
681 buffer = app_malloc(length, "cookie generate buffer");
683 memcpy(buffer, &port, sizeof(port));
684 BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL);
686 /* Calculate HMAC of buffer using the secret */
687 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
688 buffer, length, cookie, cookie_len);
690 OPENSSL_free(buffer);
696 int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
697 unsigned int cookie_len)
699 unsigned char result[EVP_MAX_MD_SIZE];
700 unsigned int resultlength;
702 /* Note: we check cookie_initialized because if it's not,
703 * it cannot be valid */
704 if (cookie_initialized
705 && generate_cookie_callback(ssl, result, &resultlength)
706 && cookie_len == resultlength
707 && memcmp(result, cookie, resultlength) == 0)
715 * Example of extended certificate handling. Where the standard support of
716 * one certificate per algorithm is not sufficient an application can decide
717 * which certificate(s) to use at runtime based on whatever criteria it deems
721 /* Linked list of certificates, keys and chains */
722 struct ssl_excert_st {
724 const char *certfile;
727 const char *chainfile;
730 STACK_OF(X509) *chain;
732 struct ssl_excert_st *next, *prev;
735 static STRINT_PAIR chain_flags[] = {
736 {"Overall Validity", CERT_PKEY_VALID},
737 {"Sign with EE key", CERT_PKEY_SIGN},
738 {"EE signature", CERT_PKEY_EE_SIGNATURE},
739 {"CA signature", CERT_PKEY_CA_SIGNATURE},
740 {"EE key parameters", CERT_PKEY_EE_PARAM},
741 {"CA key parameters", CERT_PKEY_CA_PARAM},
742 {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
743 {"Issuer Name", CERT_PKEY_ISSUER_NAME},
744 {"Certificate Type", CERT_PKEY_CERT_TYPE},
748 static void print_chain_flags(SSL *s, int flags)
752 for (pp = chain_flags; pp->name; ++pp)
753 BIO_printf(bio_err, "\t%s: %s\n",
755 (flags & pp->retval) ? "OK" : "NOT OK");
756 BIO_printf(bio_err, "\tSuite B: ");
757 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
758 BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
760 BIO_printf(bio_err, "not tested\n");
764 * Very basic selection callback: just use any certificate chain reported as
765 * valid. More sophisticated could prioritise according to local policy.
767 static int set_cert_cb(SSL *ssl, void *arg)
770 SSL_EXCERT *exc = arg;
771 #ifdef CERT_CB_TEST_RETRY
772 static int retry_cnt;
776 "Certificate callback retry test: count %d\n",
781 SSL_certs_clear(ssl);
787 * Go to end of list and traverse backwards since we prepend newer
788 * entries this retains the original order.
797 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
798 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
799 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
801 BIO_puts(bio_err, "\n");
802 print_chain_flags(ssl, rv);
803 if (rv & CERT_PKEY_VALID) {
804 if (!SSL_use_certificate(ssl, exc->cert)
805 || !SSL_use_PrivateKey(ssl, exc->key)) {
809 * NB: we wouldn't normally do this as it is not efficient
810 * building chains on each connection better to cache the chain
813 if (exc->build_chain) {
814 if (!SSL_build_cert_chain(ssl, 0))
816 } else if (exc->chain)
817 SSL_set1_chain(ssl, exc->chain);
824 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
826 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
829 static int ssl_excert_prepend(SSL_EXCERT **pexc)
831 SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
833 memset(exc, 0, sizeof(*exc));
839 exc->certform = exc->next->certform;
840 exc->keyform = exc->next->keyform;
841 exc->next->prev = exc;
843 exc->certform = FORMAT_PEM;
844 exc->keyform = FORMAT_PEM;
850 void ssl_excert_free(SSL_EXCERT *exc)
857 X509_free(exc->cert);
858 EVP_PKEY_free(exc->key);
859 sk_X509_pop_free(exc->chain, X509_free);
866 int load_excert(SSL_EXCERT **pexc)
868 SSL_EXCERT *exc = *pexc;
871 /* If nothing in list, free and set to NULL */
872 if (!exc->certfile && !exc->next) {
873 ssl_excert_free(exc);
877 for (; exc; exc = exc->next) {
878 if (!exc->certfile) {
879 BIO_printf(bio_err, "Missing filename\n");
882 exc->cert = load_cert(exc->certfile, exc->certform,
883 "Server Certificate");
887 exc->key = load_key(exc->keyfile, exc->keyform,
888 0, NULL, NULL, "Server Key");
890 exc->key = load_key(exc->certfile, exc->certform,
891 0, NULL, NULL, "Server Key");
895 if (exc->chainfile) {
896 if (!load_certs(exc->chainfile, &exc->chain, FORMAT_PEM, NULL,
904 enum range { OPT_X_ENUM };
906 int args_excert(int opt, SSL_EXCERT **pexc)
908 SSL_EXCERT *exc = *pexc;
910 assert(opt > OPT_X__FIRST);
911 assert(opt < OPT_X__LAST);
914 if (!ssl_excert_prepend(&exc)) {
915 BIO_printf(bio_err, " %s: Error initialising xcert\n",
922 switch ((enum range)opt) {
927 if (exc->certfile && !ssl_excert_prepend(&exc)) {
928 BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
931 exc->certfile = opt_arg();
935 BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
938 exc->keyfile = opt_arg();
941 if (exc->chainfile) {
942 BIO_printf(bio_err, "%s: Chain already specified\n",
946 exc->chainfile = opt_arg();
948 case OPT_X_CHAIN_BUILD:
949 exc->build_chain = 1;
952 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->certform))
956 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->keyform))
963 ERR_print_errors(bio_err);
964 ssl_excert_free(exc);
969 static void print_raw_cipherlist(SSL *s)
971 const unsigned char *rlist;
972 static const unsigned char scsv_id[] = { 0, 0xFF };
973 size_t i, rlistlen, num;
974 if (!SSL_is_server(s))
976 num = SSL_get0_raw_cipherlist(s, NULL);
977 OPENSSL_assert(num == 2);
978 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
979 BIO_puts(bio_err, "Client cipher list: ");
980 for (i = 0; i < rlistlen; i += num, rlist += num) {
981 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
983 BIO_puts(bio_err, ":");
985 BIO_puts(bio_err, SSL_CIPHER_get_name(c));
986 else if (!memcmp(rlist, scsv_id, num))
987 BIO_puts(bio_err, "SCSV");
990 BIO_puts(bio_err, "0x");
991 for (j = 0; j < num; j++)
992 BIO_printf(bio_err, "%02X", rlist[j]);
995 BIO_puts(bio_err, "\n");
999 * Hex encoder for TLSA RRdata, not ':' delimited.
1001 static char *hexencode(const unsigned char *data, size_t len)
1003 static const char *hex = "0123456789abcdef";
1006 size_t outlen = 2 * len + 1;
1007 int ilen = (int) outlen;
1009 if (outlen < len || ilen < 0 || outlen != (size_t)ilen) {
1010 BIO_printf(bio_err, "%s: %" PRIu64 "-byte buffer too large to hexencode\n",
1011 opt_getprog(), (uint64_t)len);
1014 cp = out = app_malloc(ilen, "TLSA hex data buffer");
1017 *cp++ = hex[(*data >> 4) & 0x0f];
1018 *cp++ = hex[*data++ & 0x0f];
1024 void print_verify_detail(SSL *s, BIO *bio)
1028 long verify_err = SSL_get_verify_result(s);
1030 if (verify_err == X509_V_OK) {
1031 const char *peername = SSL_get0_peername(s);
1033 BIO_printf(bio, "Verification: OK\n");
1034 if (peername != NULL)
1035 BIO_printf(bio, "Verified peername: %s\n", peername);
1037 const char *reason = X509_verify_cert_error_string(verify_err);
1039 BIO_printf(bio, "Verification error: %s\n", reason);
1042 if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) {
1043 uint8_t usage, selector, mtype;
1044 const unsigned char *data = NULL;
1048 mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen);
1051 * The TLSA data field can be quite long when it is a certificate,
1052 * public key or even a SHA2-512 digest. Because the initial octets of
1053 * ASN.1 certificates and public keys contain mostly boilerplate OIDs
1054 * and lengths, we show the last 12 bytes of the data instead, as these
1055 * are more likely to distinguish distinct TLSA records.
1057 #define TLSA_TAIL_SIZE 12
1058 if (dlen > TLSA_TAIL_SIZE)
1059 hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE);
1061 hexdata = hexencode(data, dlen);
1062 BIO_printf(bio, "DANE TLSA %d %d %d %s%s %s at depth %d\n",
1063 usage, selector, mtype,
1064 (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata,
1065 (mspki != NULL) ? "signed the certificate" :
1066 mdpth ? "matched TA certificate" : "matched EE certificate",
1068 OPENSSL_free(hexdata);
1072 void print_ssl_summary(SSL *s)
1074 const SSL_CIPHER *c;
1076 /* const char *pnam = SSL_is_server(s) ? "client" : "server"; */
1078 BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
1079 print_raw_cipherlist(s);
1080 c = SSL_get_current_cipher(s);
1081 BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1082 do_print_sigalgs(bio_err, s, 0);
1083 peer = SSL_get_peer_certificate(s);
1087 BIO_puts(bio_err, "Peer certificate: ");
1088 X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1089 0, XN_FLAG_ONELINE);
1090 BIO_puts(bio_err, "\n");
1091 if (SSL_get_peer_signature_nid(s, &nid))
1092 BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1093 print_verify_detail(s, bio_err);
1095 BIO_puts(bio_err, "No peer certificate\n");
1097 #ifndef OPENSSL_NO_EC
1098 ssl_print_point_formats(bio_err, s);
1099 if (SSL_is_server(s))
1100 ssl_print_groups(bio_err, s, 1);
1102 ssl_print_tmp_key(bio_err, s);
1104 if (!SSL_is_server(s))
1105 ssl_print_tmp_key(bio_err, s);
1109 int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
1114 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1115 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1116 const char *flag = sk_OPENSSL_STRING_value(str, i);
1117 const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
1118 if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
1120 BIO_printf(bio_err, "Error with command: \"%s %s\"\n",
1123 BIO_printf(bio_err, "Error with command: \"%s\"\n", flag);
1124 ERR_print_errors(bio_err);
1128 if (!SSL_CONF_CTX_finish(cctx)) {
1129 BIO_puts(bio_err, "Error finishing context\n");
1130 ERR_print_errors(bio_err);
1136 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1140 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1141 crl = sk_X509_CRL_value(crls, i);
1142 X509_STORE_add_crl(st, crl);
1147 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1150 st = SSL_CTX_get_cert_store(ctx);
1151 add_crls_store(st, crls);
1153 store_setup_crl_download(st);
1157 int ssl_load_stores(SSL_CTX *ctx,
1158 const char *vfyCApath, const char *vfyCAfile,
1159 const char *chCApath, const char *chCAfile,
1160 STACK_OF(X509_CRL) *crls, int crl_download)
1162 X509_STORE *vfy = NULL, *ch = NULL;
1164 if (vfyCApath != NULL || vfyCAfile != NULL) {
1165 vfy = X509_STORE_new();
1168 if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
1170 add_crls_store(vfy, crls);
1171 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1173 store_setup_crl_download(vfy);
1175 if (chCApath != NULL || chCAfile != NULL) {
1176 ch = X509_STORE_new();
1179 if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
1181 SSL_CTX_set1_chain_cert_store(ctx, ch);
1185 X509_STORE_free(vfy);
1186 X509_STORE_free(ch);
1190 /* Verbose print out of security callback */
1195 int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1196 void *other, void *ex);
1197 } security_debug_ex;
1199 static STRINT_PAIR callback_types[] = {
1200 {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
1201 {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
1202 {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
1203 #ifndef OPENSSL_NO_DH
1204 {"Temp DH key bits", SSL_SECOP_TMP_DH},
1206 {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
1207 {"Shared Curve", SSL_SECOP_CURVE_SHARED},
1208 {"Check Curve", SSL_SECOP_CURVE_CHECK},
1209 {"Supported Signature Algorithm digest", SSL_SECOP_SIGALG_SUPPORTED},
1210 {"Shared Signature Algorithm digest", SSL_SECOP_SIGALG_SHARED},
1211 {"Check Signature Algorithm digest", SSL_SECOP_SIGALG_CHECK},
1212 {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
1213 {"Certificate chain EE key", SSL_SECOP_EE_KEY},
1214 {"Certificate chain CA key", SSL_SECOP_CA_KEY},
1215 {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
1216 {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
1217 {"Certificate chain CA digest", SSL_SECOP_CA_MD},
1218 {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
1219 {"SSL compression", SSL_SECOP_COMPRESSION},
1220 {"Session ticket", SSL_SECOP_TICKET},
1224 static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
1225 int op, int bits, int nid,
1226 void *other, void *ex)
1228 security_debug_ex *sdb = ex;
1229 int rv, show_bits = 1, cert_md = 0;
1231 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1232 if (rv == 1 && sdb->verbose < 2)
1234 BIO_puts(sdb->out, "Security callback: ");
1236 nm = lookup(op, callback_types, NULL);
1238 case SSL_SECOP_TICKET:
1239 case SSL_SECOP_COMPRESSION:
1243 case SSL_SECOP_VERSION:
1244 BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1248 case SSL_SECOP_CA_MD:
1249 case SSL_SECOP_PEER_CA_MD:
1254 BIO_printf(sdb->out, "%s=", nm);
1256 switch (op & SSL_SECOP_OTHER_TYPE) {
1258 case SSL_SECOP_OTHER_CIPHER:
1259 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1262 #ifndef OPENSSL_NO_EC
1263 case SSL_SECOP_OTHER_CURVE:
1266 cname = EC_curve_nid2nist(nid);
1268 cname = OBJ_nid2sn(nid);
1269 BIO_puts(sdb->out, cname);
1273 #ifndef OPENSSL_NO_DH
1274 case SSL_SECOP_OTHER_DH:
1277 BIO_printf(sdb->out, "%d", DH_bits(dh));
1281 case SSL_SECOP_OTHER_CERT:
1284 int sig_nid = X509_get_signature_nid(other);
1285 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1287 EVP_PKEY *pkey = X509_get0_pubkey(other);
1288 const char *algname = "";
1289 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1290 &algname, EVP_PKEY_get0_asn1(pkey));
1291 BIO_printf(sdb->out, "%s, bits=%d",
1292 algname, EVP_PKEY_bits(pkey));
1296 case SSL_SECOP_OTHER_SIGALG:
1298 const unsigned char *salg = other;
1299 const char *sname = NULL;
1301 case TLSEXT_signature_anonymous:
1302 sname = "anonymous";
1304 case TLSEXT_signature_rsa:
1307 case TLSEXT_signature_dsa:
1310 case TLSEXT_signature_ecdsa:
1315 BIO_puts(sdb->out, OBJ_nid2sn(nid));
1317 BIO_printf(sdb->out, ", algorithm=%s", sname);
1319 BIO_printf(sdb->out, ", algid=%d", salg[1]);
1326 BIO_printf(sdb->out, ", security bits=%d", bits);
1327 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1331 void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1333 static security_debug_ex sdb;
1336 sdb.verbose = verbose;
1337 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1338 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1339 SSL_CTX_set0_security_ex_data(ctx, &sdb);