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Fix TLS 1.2 and no sigalgs.
[thirdparty/openssl.git] / apps / s_cb.c
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1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
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
8 */
9
10/* callback functions used by s_client, s_server, and s_time */
11#include <stdio.h>
12#include <stdlib.h>
13#include <string.h> /* for memcpy() and strcmp() */
14#define USE_SOCKETS
15#include "apps.h"
16#undef USE_SOCKETS
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>
22#ifndef OPENSSL_NO_DH
23# include <openssl/dh.h>
24#endif
25#include "s_apps.h"
26
27#define COOKIE_SECRET_LENGTH 16
28
29VERIFY_CB_ARGS verify_args = { 0, 0, X509_V_OK, 0 };
30
31#ifndef OPENSSL_NO_SOCK
32static unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
33static int cookie_initialized = 0;
34#endif
35
36static const char *lookup(int val, const STRINT_PAIR* list, const char* def)
37{
38 for ( ; list->name; ++list)
39 if (list->retval == val)
40 return list->name;
41 return def;
42}
43
44int verify_callback(int ok, X509_STORE_CTX *ctx)
45{
46 X509 *err_cert;
47 int err, depth;
48
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);
52
53 if (!verify_args.quiet || !ok) {
54 BIO_printf(bio_err, "depth=%d ", depth);
55 if (err_cert) {
56 X509_NAME_print_ex(bio_err,
57 X509_get_subject_name(err_cert),
58 0, XN_FLAG_ONELINE);
59 BIO_puts(bio_err, "\n");
60 } else
61 BIO_puts(bio_err, "<no cert>\n");
62 }
63 if (!ok) {
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)
68 ok = 1;
69 verify_args.error = err;
70 } else {
71 ok = 0;
72 verify_args.error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
73 }
74 }
75 switch (err) {
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),
79 0, XN_FLAG_ONELINE);
80 BIO_puts(bio_err, "\n");
81 break;
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");
87 break;
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");
93 break;
94 case X509_V_ERR_NO_EXPLICIT_POLICY:
95 if (!verify_args.quiet)
96 policies_print(ctx);
97 break;
98 }
99 if (err == X509_V_OK && ok == 2 && !verify_args.quiet)
100 policies_print(ctx);
101 if (ok && !verify_args.quiet)
102 BIO_printf(bio_err, "verify return:%d\n", ok);
103 return (ok);
104}
105
106int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
107{
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",
112 cert_file);
113 ERR_print_errors(bio_err);
114 return (0);
115 }
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",
120 key_file);
121 ERR_print_errors(bio_err);
122 return (0);
123 }
124
125 /*
126 * If we are using DSA, we can copy the parameters from the private
127 * key
128 */
129
130 /*
131 * Now we know that a key and cert have been set against the SSL
132 * context
133 */
134 if (!SSL_CTX_check_private_key(ctx)) {
135 BIO_printf(bio_err,
136 "Private key does not match the certificate public key\n");
137 return (0);
138 }
139 }
140 return (1);
141}
142
143int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
144 STACK_OF(X509) *chain, int build_chain)
145{
146 int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
147 if (cert == NULL)
148 return 1;
149 if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
150 BIO_printf(bio_err, "error setting certificate\n");
151 ERR_print_errors(bio_err);
152 return 0;
153 }
154
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);
158 return 0;
159 }
160
161 /*
162 * Now we know that a key and cert have been set against the SSL context
163 */
164 if (!SSL_CTX_check_private_key(ctx)) {
165 BIO_printf(bio_err,
166 "Private key does not match the certificate public key\n");
167 return 0;
168 }
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);
172 return 0;
173 }
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);
177 return 0;
178 }
179 return 1;
180}
181
182static 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},
191 {NULL}
192};
193
194static void ssl_print_client_cert_types(BIO *bio, SSL *s)
195{
196 const unsigned char *p;
197 int i;
198 int cert_type_num = SSL_get0_certificate_types(s, &p);
199 if (!cert_type_num)
200 return;
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);
205
206 if (i)
207 BIO_puts(bio, ", ");
208 if (cname)
209 BIO_puts(bio, cname);
210 else
211 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
212 }
213 BIO_puts(bio, "\n");
214}
215
216static const char *get_sigtype(int nid)
217{
218 switch (nid) {
219 case EVP_PKEY_RSA:
220 return "RSA";
221
222 case EVP_PKEY_RSA_PSS:
223 return "RSA-PSS";
224
225 case EVP_PKEY_DSA:
226 return "DSA";
227
228 case EVP_PKEY_EC:
229 return "ECDSA";
230
231 default:
232 return NULL;
233 }
234}
235
236static int do_print_sigalgs(BIO *out, SSL *s, int shared)
237{
238 int i, nsig, client;
239 client = SSL_is_server(s) ? 0 : 1;
240 if (shared)
241 nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
242 else
243 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
244 if (nsig == 0)
245 return 1;
246
247 if (shared)
248 BIO_puts(out, "Shared ");
249
250 if (client)
251 BIO_puts(out, "Requested ");
252 BIO_puts(out, "Signature Algorithms: ");
253 for (i = 0; i < nsig; i++) {
254 int hash_nid, sign_nid;
255 unsigned char rhash, rsign;
256 const char *sstr = NULL;
257 if (shared)
258 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
259 &rsign, &rhash);
260 else
261 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
262 if (i)
263 BIO_puts(out, ":");
264 sstr= get_sigtype(sign_nid);
265 if (sstr)
266 BIO_printf(out, "%s+", sstr);
267 else
268 BIO_printf(out, "0x%02X+", (int)rsign);
269 if (hash_nid != NID_undef)
270 BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
271 else
272 BIO_printf(out, "0x%02X", (int)rhash);
273 }
274 BIO_puts(out, "\n");
275 return 1;
276}
277
278int ssl_print_sigalgs(BIO *out, SSL *s)
279{
280 int nid;
281 if (!SSL_is_server(s))
282 ssl_print_client_cert_types(out, s);
283 do_print_sigalgs(out, s, 0);
284 do_print_sigalgs(out, s, 1);
285 if (SSL_get_peer_signature_nid(s, &nid))
286 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(nid));
287 if (SSL_get_peer_signature_type_nid(s, &nid))
288 BIO_printf(bio_err, "Peer signature type: %s\n", get_sigtype(nid));
289 return 1;
290}
291
292#ifndef OPENSSL_NO_EC
293int ssl_print_point_formats(BIO *out, SSL *s)
294{
295 int i, nformats;
296 const char *pformats;
297 nformats = SSL_get0_ec_point_formats(s, &pformats);
298 if (nformats <= 0)
299 return 1;
300 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
301 for (i = 0; i < nformats; i++, pformats++) {
302 if (i)
303 BIO_puts(out, ":");
304 switch (*pformats) {
305 case TLSEXT_ECPOINTFORMAT_uncompressed:
306 BIO_puts(out, "uncompressed");
307 break;
308
309 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
310 BIO_puts(out, "ansiX962_compressed_prime");
311 break;
312
313 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
314 BIO_puts(out, "ansiX962_compressed_char2");
315 break;
316
317 default:
318 BIO_printf(out, "unknown(%d)", (int)*pformats);
319 break;
320
321 }
322 }
323 BIO_puts(out, "\n");
324 return 1;
325}
326
327int ssl_print_groups(BIO *out, SSL *s, int noshared)
328{
329 int i, ngroups, *groups, nid;
330 const char *gname;
331
332 ngroups = SSL_get1_groups(s, NULL);
333 if (ngroups <= 0)
334 return 1;
335 groups = app_malloc(ngroups * sizeof(int), "groups to print");
336 SSL_get1_groups(s, groups);
337
338 BIO_puts(out, "Supported Elliptic Groups: ");
339 for (i = 0; i < ngroups; i++) {
340 if (i)
341 BIO_puts(out, ":");
342 nid = groups[i];
343 /* If unrecognised print out hex version */
344 if (nid & TLSEXT_nid_unknown)
345 BIO_printf(out, "0x%04X", nid & 0xFFFF);
346 else {
347 /* TODO(TLS1.3): Get group name here */
348 /* Use NIST name for curve if it exists */
349 gname = EC_curve_nid2nist(nid);
350 if (!gname)
351 gname = OBJ_nid2sn(nid);
352 BIO_printf(out, "%s", gname);
353 }
354 }
355 OPENSSL_free(groups);
356 if (noshared) {
357 BIO_puts(out, "\n");
358 return 1;
359 }
360 BIO_puts(out, "\nShared Elliptic groups: ");
361 ngroups = SSL_get_shared_group(s, -1);
362 for (i = 0; i < ngroups; i++) {
363 if (i)
364 BIO_puts(out, ":");
365 nid = SSL_get_shared_group(s, i);
366 /* TODO(TLS1.3): Convert for DH groups */
367 gname = EC_curve_nid2nist(nid);
368 if (!gname)
369 gname = OBJ_nid2sn(nid);
370 BIO_printf(out, "%s", gname);
371 }
372 if (ngroups == 0)
373 BIO_puts(out, "NONE");
374 BIO_puts(out, "\n");
375 return 1;
376}
377#endif
378int ssl_print_tmp_key(BIO *out, SSL *s)
379{
380 EVP_PKEY *key;
381 if (!SSL_get_server_tmp_key(s, &key))
382 return 1;
383 BIO_puts(out, "Server Temp Key: ");
384 switch (EVP_PKEY_id(key)) {
385 case EVP_PKEY_RSA:
386 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
387 break;
388
389 case EVP_PKEY_DH:
390 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
391 break;
392#ifndef OPENSSL_NO_EC
393 case EVP_PKEY_EC:
394 {
395 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
396 int nid;
397 const char *cname;
398 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
399 EC_KEY_free(ec);
400 cname = EC_curve_nid2nist(nid);
401 if (!cname)
402 cname = OBJ_nid2sn(nid);
403 BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
404 }
405 break;
406#endif
407 default:
408 BIO_printf(out, "%s, %d bits\n", OBJ_nid2sn(EVP_PKEY_id(key)),
409 EVP_PKEY_bits(key));
410 }
411 EVP_PKEY_free(key);
412 return 1;
413}
414
415long bio_dump_callback(BIO *bio, int cmd, const char *argp,
416 int argi, long argl, long ret)
417{
418 BIO *out;
419
420 out = (BIO *)BIO_get_callback_arg(bio);
421 if (out == NULL)
422 return (ret);
423
424 if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
425 BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
426 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
427 BIO_dump(out, argp, (int)ret);
428 return (ret);
429 } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
430 BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
431 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
432 BIO_dump(out, argp, (int)ret);
433 }
434 return (ret);
435}
436
437void apps_ssl_info_callback(const SSL *s, int where, int ret)
438{
439 const char *str;
440 int w;
441
442 w = where & ~SSL_ST_MASK;
443
444 if (w & SSL_ST_CONNECT)
445 str = "SSL_connect";
446 else if (w & SSL_ST_ACCEPT)
447 str = "SSL_accept";
448 else
449 str = "undefined";
450
451 if (where & SSL_CB_LOOP) {
452 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
453 } else if (where & SSL_CB_ALERT) {
454 str = (where & SSL_CB_READ) ? "read" : "write";
455 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
456 str,
457 SSL_alert_type_string_long(ret),
458 SSL_alert_desc_string_long(ret));
459 } else if (where & SSL_CB_EXIT) {
460 if (ret == 0)
461 BIO_printf(bio_err, "%s:failed in %s\n",
462 str, SSL_state_string_long(s));
463 else if (ret < 0) {
464 BIO_printf(bio_err, "%s:error in %s\n",
465 str, SSL_state_string_long(s));
466 }
467 }
468}
469
470static STRINT_PAIR ssl_versions[] = {
471 {"SSL 3.0", SSL3_VERSION},
472 {"TLS 1.0", TLS1_VERSION},
473 {"TLS 1.1", TLS1_1_VERSION},
474 {"TLS 1.2", TLS1_2_VERSION},
475 {"TLS 1.3", TLS1_3_VERSION},
476 {"DTLS 1.0", DTLS1_VERSION},
477 {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
478 {NULL}
479};
480static STRINT_PAIR alert_types[] = {
481 {" close_notify", 0},
482 {" unexpected_message", 10},
483 {" bad_record_mac", 20},
484 {" decryption_failed", 21},
485 {" record_overflow", 22},
486 {" decompression_failure", 30},
487 {" handshake_failure", 40},
488 {" bad_certificate", 42},
489 {" unsupported_certificate", 43},
490 {" certificate_revoked", 44},
491 {" certificate_expired", 45},
492 {" certificate_unknown", 46},
493 {" illegal_parameter", 47},
494 {" unknown_ca", 48},
495 {" access_denied", 49},
496 {" decode_error", 50},
497 {" decrypt_error", 51},
498 {" export_restriction", 60},
499 {" protocol_version", 70},
500 {" insufficient_security", 71},
501 {" internal_error", 80},
502 {" user_canceled", 90},
503 {" no_renegotiation", 100},
504 {" unsupported_extension", 110},
505 {" certificate_unobtainable", 111},
506 {" unrecognized_name", 112},
507 {" bad_certificate_status_response", 113},
508 {" bad_certificate_hash_value", 114},
509 {" unknown_psk_identity", 115},
510 {NULL}
511};
512
513static STRINT_PAIR handshakes[] = {
514 {", HelloRequest", 0},
515 {", ClientHello", 1},
516 {", ServerHello", 2},
517 {", HelloVerifyRequest", 3},
518 {", NewSessionTicket", 4},
519 {", Certificate", 11},
520 {", ServerKeyExchange", 12},
521 {", CertificateRequest", 13},
522 {", ServerHelloDone", 14},
523 {", CertificateVerify", 15},
524 {", ClientKeyExchange", 16},
525 {", Finished", 20},
526 {", CertificateUrl", 21},
527 {", CertificateStatus", 22},
528 {", SupplementalData", 23},
529 {NULL}
530};
531
532void msg_cb(int write_p, int version, int content_type, const void *buf,
533 size_t len, SSL *ssl, void *arg)
534{
535 BIO *bio = arg;
536 const char *str_write_p = write_p ? ">>>" : "<<<";
537 const char *str_version = lookup(version, ssl_versions, "???");
538 const char *str_content_type = "", *str_details1 = "", *str_details2 = "";
539 const unsigned char* bp = buf;
540
541 if (version == SSL3_VERSION ||
542 version == TLS1_VERSION ||
543 version == TLS1_1_VERSION ||
544 version == TLS1_2_VERSION ||
545 version == TLS1_3_VERSION ||
546 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
547 switch (content_type) {
548 case 20:
549 str_content_type = "ChangeCipherSpec";
550 break;
551 case 21:
552 str_content_type = "Alert";
553 str_details1 = ", ???";
554 if (len == 2) {
555 switch (bp[0]) {
556 case 1:
557 str_details1 = ", warning";
558 break;
559 case 2:
560 str_details1 = ", fatal";
561 break;
562 }
563 str_details2 = lookup((int)bp[1], alert_types, " ???");
564 }
565 break;
566 case 22:
567 str_content_type = "Handshake";
568 str_details1 = "???";
569 if (len > 0)
570 str_details1 = lookup((int)bp[0], handshakes, "???");
571 break;
572 case 23:
573 str_content_type = "ApplicationData";
574 break;
575#ifndef OPENSSL_NO_HEARTBEATS
576 case 24:
577 str_details1 = ", Heartbeat";
578
579 if (len > 0) {
580 switch (bp[0]) {
581 case 1:
582 str_details1 = ", HeartbeatRequest";
583 break;
584 case 2:
585 str_details1 = ", HeartbeatResponse";
586 break;
587 }
588 }
589 break;
590#endif
591 }
592 }
593
594 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
595 str_content_type, (unsigned long)len, str_details1,
596 str_details2);
597
598 if (len > 0) {
599 size_t num, i;
600
601 BIO_printf(bio, " ");
602 num = len;
603 for (i = 0; i < num; i++) {
604 if (i % 16 == 0 && i > 0)
605 BIO_printf(bio, "\n ");
606 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
607 }
608 if (i < len)
609 BIO_printf(bio, " ...");
610 BIO_printf(bio, "\n");
611 }
612 (void)BIO_flush(bio);
613}
614
615static STRINT_PAIR tlsext_types[] = {
616 {"server name", TLSEXT_TYPE_server_name},
617 {"max fragment length", TLSEXT_TYPE_max_fragment_length},
618 {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
619 {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
620 {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
621 {"status request", TLSEXT_TYPE_status_request},
622 {"user mapping", TLSEXT_TYPE_user_mapping},
623 {"client authz", TLSEXT_TYPE_client_authz},
624 {"server authz", TLSEXT_TYPE_server_authz},
625 {"cert type", TLSEXT_TYPE_cert_type},
626 {"supported_groups", TLSEXT_TYPE_supported_groups},
627 {"EC point formats", TLSEXT_TYPE_ec_point_formats},
628 {"SRP", TLSEXT_TYPE_srp},
629 {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
630 {"use SRTP", TLSEXT_TYPE_use_srtp},
631 {"heartbeat", TLSEXT_TYPE_heartbeat},
632 {"session ticket", TLSEXT_TYPE_session_ticket},
633 {"renegotiation info", TLSEXT_TYPE_renegotiate},
634 {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp},
635 {"TLS padding", TLSEXT_TYPE_padding},
636#ifdef TLSEXT_TYPE_next_proto_neg
637 {"next protocol", TLSEXT_TYPE_next_proto_neg},
638#endif
639#ifdef TLSEXT_TYPE_encrypt_then_mac
640 {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
641#endif
642#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
643 {"application layer protocol negotiation",
644 TLSEXT_TYPE_application_layer_protocol_negotiation},
645#endif
646#ifdef TLSEXT_TYPE_extended_master_secret
647 {"extended master secret", TLSEXT_TYPE_extended_master_secret},
648#endif
649 {NULL}
650};
651
652void tlsext_cb(SSL *s, int client_server, int type,
653 const unsigned char *data, int len, void *arg)
654{
655 BIO *bio = arg;
656 const char *extname = lookup(type, tlsext_types, "unknown");
657
658 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
659 client_server ? "server" : "client", extname, type, len);
660 BIO_dump(bio, (const char *)data, len);
661 (void)BIO_flush(bio);
662}
663
664#ifndef OPENSSL_NO_SOCK
665int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
666 unsigned int *cookie_len)
667{
668 unsigned char *buffer;
669 size_t length;
670 unsigned short port;
671 BIO_ADDR *peer = NULL;
672
673 /* Initialize a random secret */
674 if (!cookie_initialized) {
675 if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
676 BIO_printf(bio_err, "error setting random cookie secret\n");
677 return 0;
678 }
679 cookie_initialized = 1;
680 }
681
682 peer = BIO_ADDR_new();
683 if (peer == NULL) {
684 BIO_printf(bio_err, "memory full\n");
685 return 0;
686 }
687
688 /* Read peer information */
689 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer);
690
691 /* Create buffer with peer's address and port */
692 BIO_ADDR_rawaddress(peer, NULL, &length);
693 OPENSSL_assert(length != 0);
694 port = BIO_ADDR_rawport(peer);
695 length += sizeof(port);
696 buffer = app_malloc(length, "cookie generate buffer");
697
698 memcpy(buffer, &port, sizeof(port));
699 BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL);
700
701 /* Calculate HMAC of buffer using the secret */
702 HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
703 buffer, length, cookie, cookie_len);
704
705 OPENSSL_free(buffer);
706 BIO_ADDR_free(peer);
707
708 return 1;
709}
710
711int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
712 unsigned int cookie_len)
713{
714 unsigned char result[EVP_MAX_MD_SIZE];
715 unsigned int resultlength;
716
717 /* Note: we check cookie_initialized because if it's not,
718 * it cannot be valid */
719 if (cookie_initialized
720 && generate_cookie_callback(ssl, result, &resultlength)
721 && cookie_len == resultlength
722 && memcmp(result, cookie, resultlength) == 0)
723 return 1;
724
725 return 0;
726}
727#endif
728
729/*
730 * Example of extended certificate handling. Where the standard support of
731 * one certificate per algorithm is not sufficient an application can decide
732 * which certificate(s) to use at runtime based on whatever criteria it deems
733 * appropriate.
734 */
735
736/* Linked list of certificates, keys and chains */
737struct ssl_excert_st {
738 int certform;
739 const char *certfile;
740 int keyform;
741 const char *keyfile;
742 const char *chainfile;
743 X509 *cert;
744 EVP_PKEY *key;
745 STACK_OF(X509) *chain;
746 int build_chain;
747 struct ssl_excert_st *next, *prev;
748};
749
750static STRINT_PAIR chain_flags[] = {
751 {"Overall Validity", CERT_PKEY_VALID},
752 {"Sign with EE key", CERT_PKEY_SIGN},
753 {"EE signature", CERT_PKEY_EE_SIGNATURE},
754 {"CA signature", CERT_PKEY_CA_SIGNATURE},
755 {"EE key parameters", CERT_PKEY_EE_PARAM},
756 {"CA key parameters", CERT_PKEY_CA_PARAM},
757 {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
758 {"Issuer Name", CERT_PKEY_ISSUER_NAME},
759 {"Certificate Type", CERT_PKEY_CERT_TYPE},
760 {NULL}
761};
762
763static void print_chain_flags(SSL *s, int flags)
764{
765 STRINT_PAIR *pp;
766
767 for (pp = chain_flags; pp->name; ++pp)
768 BIO_printf(bio_err, "\t%s: %s\n",
769 pp->name,
770 (flags & pp->retval) ? "OK" : "NOT OK");
771 BIO_printf(bio_err, "\tSuite B: ");
772 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
773 BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
774 else
775 BIO_printf(bio_err, "not tested\n");
776}
777
778/*
779 * Very basic selection callback: just use any certificate chain reported as
780 * valid. More sophisticated could prioritise according to local policy.
781 */
782static int set_cert_cb(SSL *ssl, void *arg)
783{
784 int i, rv;
785 SSL_EXCERT *exc = arg;
786#ifdef CERT_CB_TEST_RETRY
787 static int retry_cnt;
788 if (retry_cnt < 5) {
789 retry_cnt++;
790 BIO_printf(bio_err,
791 "Certificate callback retry test: count %d\n",
792 retry_cnt);
793 return -1;
794 }
795#endif
796 SSL_certs_clear(ssl);
797
798 if (!exc)
799 return 1;
800
801 /*
802 * Go to end of list and traverse backwards since we prepend newer
803 * entries this retains the original order.
804 */
805 while (exc->next)
806 exc = exc->next;
807
808 i = 0;
809
810 while (exc) {
811 i++;
812 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
813 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
814 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
815 XN_FLAG_ONELINE);
816 BIO_puts(bio_err, "\n");
817 print_chain_flags(ssl, rv);
818 if (rv & CERT_PKEY_VALID) {
819 if (!SSL_use_certificate(ssl, exc->cert)
820 || !SSL_use_PrivateKey(ssl, exc->key)) {
821 return 0;
822 }
823 /*
824 * NB: we wouldn't normally do this as it is not efficient
825 * building chains on each connection better to cache the chain
826 * in advance.
827 */
828 if (exc->build_chain) {
829 if (!SSL_build_cert_chain(ssl, 0))
830 return 0;
831 } else if (exc->chain)
832 SSL_set1_chain(ssl, exc->chain);
833 }
834 exc = exc->prev;
835 }
836 return 1;
837}
838
839void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
840{
841 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
842}
843
844static int ssl_excert_prepend(SSL_EXCERT **pexc)
845{
846 SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
847
848 memset(exc, 0, sizeof(*exc));
849
850 exc->next = *pexc;
851 *pexc = exc;
852
853 if (exc->next) {
854 exc->certform = exc->next->certform;
855 exc->keyform = exc->next->keyform;
856 exc->next->prev = exc;
857 } else {
858 exc->certform = FORMAT_PEM;
859 exc->keyform = FORMAT_PEM;
860 }
861 return 1;
862
863}
864
865void ssl_excert_free(SSL_EXCERT *exc)
866{
867 SSL_EXCERT *curr;
868
869 if (!exc)
870 return;
871 while (exc) {
872 X509_free(exc->cert);
873 EVP_PKEY_free(exc->key);
874 sk_X509_pop_free(exc->chain, X509_free);
875 curr = exc;
876 exc = exc->next;
877 OPENSSL_free(curr);
878 }
879}
880
881int load_excert(SSL_EXCERT **pexc)
882{
883 SSL_EXCERT *exc = *pexc;
884 if (!exc)
885 return 1;
886 /* If nothing in list, free and set to NULL */
887 if (!exc->certfile && !exc->next) {
888 ssl_excert_free(exc);
889 *pexc = NULL;
890 return 1;
891 }
892 for (; exc; exc = exc->next) {
893 if (!exc->certfile) {
894 BIO_printf(bio_err, "Missing filename\n");
895 return 0;
896 }
897 exc->cert = load_cert(exc->certfile, exc->certform,
898 "Server Certificate");
899 if (!exc->cert)
900 return 0;
901 if (exc->keyfile) {
902 exc->key = load_key(exc->keyfile, exc->keyform,
903 0, NULL, NULL, "Server Key");
904 } else {
905 exc->key = load_key(exc->certfile, exc->certform,
906 0, NULL, NULL, "Server Key");
907 }
908 if (!exc->key)
909 return 0;
910 if (exc->chainfile) {
911 if (!load_certs(exc->chainfile, &exc->chain, FORMAT_PEM, NULL,
912 "Server Chain"))
913 return 0;
914 }
915 }
916 return 1;
917}
918
919enum range { OPT_X_ENUM };
920
921int args_excert(int opt, SSL_EXCERT **pexc)
922{
923 SSL_EXCERT *exc = *pexc;
924
925 assert(opt > OPT_X__FIRST);
926 assert(opt < OPT_X__LAST);
927
928 if (exc == NULL) {
929 if (!ssl_excert_prepend(&exc)) {
930 BIO_printf(bio_err, " %s: Error initialising xcert\n",
931 opt_getprog());
932 goto err;
933 }
934 *pexc = exc;
935 }
936
937 switch ((enum range)opt) {
938 case OPT_X__FIRST:
939 case OPT_X__LAST:
940 return 0;
941 case OPT_X_CERT:
942 if (exc->certfile && !ssl_excert_prepend(&exc)) {
943 BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
944 goto err;
945 }
946 exc->certfile = opt_arg();
947 break;
948 case OPT_X_KEY:
949 if (exc->keyfile) {
950 BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
951 goto err;
952 }
953 exc->keyfile = opt_arg();
954 break;
955 case OPT_X_CHAIN:
956 if (exc->chainfile) {
957 BIO_printf(bio_err, "%s: Chain already specified\n",
958 opt_getprog());
959 goto err;
960 }
961 exc->chainfile = opt_arg();
962 break;
963 case OPT_X_CHAIN_BUILD:
964 exc->build_chain = 1;
965 break;
966 case OPT_X_CERTFORM:
967 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->certform))
968 return 0;
969 break;
970 case OPT_X_KEYFORM:
971 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->keyform))
972 return 0;
973 break;
974 }
975 return 1;
976
977 err:
978 ERR_print_errors(bio_err);
979 ssl_excert_free(exc);
980 *pexc = NULL;
981 return 0;
982}
983
984static void print_raw_cipherlist(SSL *s)
985{
986 const unsigned char *rlist;
987 static const unsigned char scsv_id[] = { 0, 0xFF };
988 size_t i, rlistlen, num;
989 if (!SSL_is_server(s))
990 return;
991 num = SSL_get0_raw_cipherlist(s, NULL);
992 OPENSSL_assert(num == 2);
993 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
994 BIO_puts(bio_err, "Client cipher list: ");
995 for (i = 0; i < rlistlen; i += num, rlist += num) {
996 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
997 if (i)
998 BIO_puts(bio_err, ":");
999 if (c)
1000 BIO_puts(bio_err, SSL_CIPHER_get_name(c));
1001 else if (!memcmp(rlist, scsv_id, num))
1002 BIO_puts(bio_err, "SCSV");
1003 else {
1004 size_t j;
1005 BIO_puts(bio_err, "0x");
1006 for (j = 0; j < num; j++)
1007 BIO_printf(bio_err, "%02X", rlist[j]);
1008 }
1009 }
1010 BIO_puts(bio_err, "\n");
1011}
1012
1013/*
1014 * Hex encoder for TLSA RRdata, not ':' delimited.
1015 */
1016static char *hexencode(const unsigned char *data, size_t len)
1017{
1018 static const char *hex = "0123456789abcdef";
1019 char *out;
1020 char *cp;
1021 size_t outlen = 2 * len + 1;
1022 int ilen = (int) outlen;
1023
1024 if (outlen < len || ilen < 0 || outlen != (size_t)ilen) {
1025 BIO_printf(bio_err, "%s: %" PRIu64 "-byte buffer too large to hexencode\n",
1026 opt_getprog(), (uint64_t)len);
1027 exit(1);
1028 }
1029 cp = out = app_malloc(ilen, "TLSA hex data buffer");
1030
1031 while (len-- > 0) {
1032 *cp++ = hex[(*data >> 4) & 0x0f];
1033 *cp++ = hex[*data++ & 0x0f];
1034 }
1035 *cp = '\0';
1036 return out;
1037}
1038
1039void print_verify_detail(SSL *s, BIO *bio)
1040{
1041 int mdpth;
1042 EVP_PKEY *mspki;
1043 long verify_err = SSL_get_verify_result(s);
1044
1045 if (verify_err == X509_V_OK) {
1046 const char *peername = SSL_get0_peername(s);
1047
1048 BIO_printf(bio, "Verification: OK\n");
1049 if (peername != NULL)
1050 BIO_printf(bio, "Verified peername: %s\n", peername);
1051 } else {
1052 const char *reason = X509_verify_cert_error_string(verify_err);
1053
1054 BIO_printf(bio, "Verification error: %s\n", reason);
1055 }
1056
1057 if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) {
1058 uint8_t usage, selector, mtype;
1059 const unsigned char *data = NULL;
1060 size_t dlen = 0;
1061 char *hexdata;
1062
1063 mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen);
1064
1065 /*
1066 * The TLSA data field can be quite long when it is a certificate,
1067 * public key or even a SHA2-512 digest. Because the initial octets of
1068 * ASN.1 certificates and public keys contain mostly boilerplate OIDs
1069 * and lengths, we show the last 12 bytes of the data instead, as these
1070 * are more likely to distinguish distinct TLSA records.
1071 */
1072#define TLSA_TAIL_SIZE 12
1073 if (dlen > TLSA_TAIL_SIZE)
1074 hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE);
1075 else
1076 hexdata = hexencode(data, dlen);
1077 BIO_printf(bio, "DANE TLSA %d %d %d %s%s %s at depth %d\n",
1078 usage, selector, mtype,
1079 (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata,
1080 (mspki != NULL) ? "signed the certificate" :
1081 mdpth ? "matched TA certificate" : "matched EE certificate",
1082 mdpth);
1083 OPENSSL_free(hexdata);
1084 }
1085}
1086
1087void print_ssl_summary(SSL *s)
1088{
1089 const SSL_CIPHER *c;
1090 X509 *peer;
1091 /* const char *pnam = SSL_is_server(s) ? "client" : "server"; */
1092
1093 BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
1094 print_raw_cipherlist(s);
1095 c = SSL_get_current_cipher(s);
1096 BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1097 do_print_sigalgs(bio_err, s, 0);
1098 peer = SSL_get_peer_certificate(s);
1099 if (peer) {
1100 int nid;
1101
1102 BIO_puts(bio_err, "Peer certificate: ");
1103 X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1104 0, XN_FLAG_ONELINE);
1105 BIO_puts(bio_err, "\n");
1106 if (SSL_get_peer_signature_nid(s, &nid))
1107 BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1108 if (SSL_get_peer_signature_type_nid(s, &nid))
1109 BIO_printf(bio_err, "Signature type: %s\n", get_sigtype(nid));
1110 print_verify_detail(s, bio_err);
1111 } else
1112 BIO_puts(bio_err, "No peer certificate\n");
1113 X509_free(peer);
1114#ifndef OPENSSL_NO_EC
1115 ssl_print_point_formats(bio_err, s);
1116 if (SSL_is_server(s))
1117 ssl_print_groups(bio_err, s, 1);
1118 else
1119 ssl_print_tmp_key(bio_err, s);
1120#else
1121 if (!SSL_is_server(s))
1122 ssl_print_tmp_key(bio_err, s);
1123#endif
1124}
1125
1126int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
1127 SSL_CTX *ctx)
1128{
1129 int i;
1130
1131 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1132 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1133 const char *flag = sk_OPENSSL_STRING_value(str, i);
1134 const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
1135 if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
1136 if (arg)
1137 BIO_printf(bio_err, "Error with command: \"%s %s\"\n",
1138 flag, arg);
1139 else
1140 BIO_printf(bio_err, "Error with command: \"%s\"\n", flag);
1141 ERR_print_errors(bio_err);
1142 return 0;
1143 }
1144 }
1145 if (!SSL_CONF_CTX_finish(cctx)) {
1146 BIO_puts(bio_err, "Error finishing context\n");
1147 ERR_print_errors(bio_err);
1148 return 0;
1149 }
1150 return 1;
1151}
1152
1153static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1154{
1155 X509_CRL *crl;
1156 int i;
1157 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1158 crl = sk_X509_CRL_value(crls, i);
1159 X509_STORE_add_crl(st, crl);
1160 }
1161 return 1;
1162}
1163
1164int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1165{
1166 X509_STORE *st;
1167 st = SSL_CTX_get_cert_store(ctx);
1168 add_crls_store(st, crls);
1169 if (crl_download)
1170 store_setup_crl_download(st);
1171 return 1;
1172}
1173
1174int ssl_load_stores(SSL_CTX *ctx,
1175 const char *vfyCApath, const char *vfyCAfile,
1176 const char *chCApath, const char *chCAfile,
1177 STACK_OF(X509_CRL) *crls, int crl_download)
1178{
1179 X509_STORE *vfy = NULL, *ch = NULL;
1180 int rv = 0;
1181 if (vfyCApath != NULL || vfyCAfile != NULL) {
1182 vfy = X509_STORE_new();
1183 if (vfy == NULL)
1184 goto err;
1185 if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
1186 goto err;
1187 add_crls_store(vfy, crls);
1188 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1189 if (crl_download)
1190 store_setup_crl_download(vfy);
1191 }
1192 if (chCApath != NULL || chCAfile != NULL) {
1193 ch = X509_STORE_new();
1194 if (ch == NULL)
1195 goto err;
1196 if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
1197 goto err;
1198 SSL_CTX_set1_chain_cert_store(ctx, ch);
1199 }
1200 rv = 1;
1201 err:
1202 X509_STORE_free(vfy);
1203 X509_STORE_free(ch);
1204 return rv;
1205}
1206
1207/* Verbose print out of security callback */
1208
1209typedef struct {
1210 BIO *out;
1211 int verbose;
1212 int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1213 void *other, void *ex);
1214} security_debug_ex;
1215
1216static STRINT_PAIR callback_types[] = {
1217 {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
1218 {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
1219 {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
1220#ifndef OPENSSL_NO_DH
1221 {"Temp DH key bits", SSL_SECOP_TMP_DH},
1222#endif
1223 {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
1224 {"Shared Curve", SSL_SECOP_CURVE_SHARED},
1225 {"Check Curve", SSL_SECOP_CURVE_CHECK},
1226 {"Supported Signature Algorithm digest", SSL_SECOP_SIGALG_SUPPORTED},
1227 {"Shared Signature Algorithm digest", SSL_SECOP_SIGALG_SHARED},
1228 {"Check Signature Algorithm digest", SSL_SECOP_SIGALG_CHECK},
1229 {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
1230 {"Certificate chain EE key", SSL_SECOP_EE_KEY},
1231 {"Certificate chain CA key", SSL_SECOP_CA_KEY},
1232 {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
1233 {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
1234 {"Certificate chain CA digest", SSL_SECOP_CA_MD},
1235 {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
1236 {"SSL compression", SSL_SECOP_COMPRESSION},
1237 {"Session ticket", SSL_SECOP_TICKET},
1238 {NULL}
1239};
1240
1241static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
1242 int op, int bits, int nid,
1243 void *other, void *ex)
1244{
1245 security_debug_ex *sdb = ex;
1246 int rv, show_bits = 1, cert_md = 0;
1247 const char *nm;
1248 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1249 if (rv == 1 && sdb->verbose < 2)
1250 return 1;
1251 BIO_puts(sdb->out, "Security callback: ");
1252
1253 nm = lookup(op, callback_types, NULL);
1254 switch (op) {
1255 case SSL_SECOP_TICKET:
1256 case SSL_SECOP_COMPRESSION:
1257 show_bits = 0;
1258 nm = NULL;
1259 break;
1260 case SSL_SECOP_VERSION:
1261 BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1262 show_bits = 0;
1263 nm = NULL;
1264 break;
1265 case SSL_SECOP_CA_MD:
1266 case SSL_SECOP_PEER_CA_MD:
1267 cert_md = 1;
1268 break;
1269 }
1270 if (nm)
1271 BIO_printf(sdb->out, "%s=", nm);
1272
1273 switch (op & SSL_SECOP_OTHER_TYPE) {
1274
1275 case SSL_SECOP_OTHER_CIPHER:
1276 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1277 break;
1278
1279#ifndef OPENSSL_NO_EC
1280 case SSL_SECOP_OTHER_CURVE:
1281 {
1282 const char *cname;
1283 cname = EC_curve_nid2nist(nid);
1284 if (cname == NULL)
1285 cname = OBJ_nid2sn(nid);
1286 BIO_puts(sdb->out, cname);
1287 }
1288 break;
1289#endif
1290#ifndef OPENSSL_NO_DH
1291 case SSL_SECOP_OTHER_DH:
1292 {
1293 DH *dh = other;
1294 BIO_printf(sdb->out, "%d", DH_bits(dh));
1295 break;
1296 }
1297#endif
1298 case SSL_SECOP_OTHER_CERT:
1299 {
1300 if (cert_md) {
1301 int sig_nid = X509_get_signature_nid(other);
1302 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1303 } else {
1304 EVP_PKEY *pkey = X509_get0_pubkey(other);
1305 const char *algname = "";
1306 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1307 &algname, EVP_PKEY_get0_asn1(pkey));
1308 BIO_printf(sdb->out, "%s, bits=%d",
1309 algname, EVP_PKEY_bits(pkey));
1310 }
1311 break;
1312 }
1313 case SSL_SECOP_OTHER_SIGALG:
1314 {
1315 const unsigned char *salg = other;
1316 const char *sname = NULL;
1317 switch (salg[1]) {
1318 case TLSEXT_signature_anonymous:
1319 sname = "anonymous";
1320 break;
1321 case TLSEXT_signature_rsa:
1322 sname = "RSA";
1323 break;
1324 case TLSEXT_signature_dsa:
1325 sname = "DSA";
1326 break;
1327 case TLSEXT_signature_ecdsa:
1328 sname = "ECDSA";
1329 break;
1330 }
1331
1332 BIO_puts(sdb->out, OBJ_nid2sn(nid));
1333 if (sname)
1334 BIO_printf(sdb->out, ", algorithm=%s", sname);
1335 else
1336 BIO_printf(sdb->out, ", algid=%d", salg[1]);
1337 break;
1338 }
1339
1340 }
1341
1342 if (show_bits)
1343 BIO_printf(sdb->out, ", security bits=%d", bits);
1344 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1345 return rv;
1346}
1347
1348void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1349{
1350 static security_debug_ex sdb;
1351
1352 sdb.out = bio_err;
1353 sdb.verbose = verbose;
1354 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1355 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1356 SSL_CTX_set0_security_ex_data(ctx, &sdb);
1357}
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