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[thirdparty/openssl.git] / apps / lib / s_cb.c
1 /*
2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
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 #include "apps.h"
15 #include <openssl/core_names.h>
16 #include <openssl/params.h>
17 #include <openssl/err.h>
18 #include <openssl/rand.h>
19 #include <openssl/x509.h>
20 #include <openssl/ssl.h>
21 #include <openssl/bn.h>
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
29 DEFINE_STACK_OF(X509)
30 DEFINE_STACK_OF(X509_CRL)
31 DEFINE_STACK_OF(X509_NAME)
32 DEFINE_STACK_OF_STRING()
33
34 VERIFY_CB_ARGS verify_args = { -1, 0, X509_V_OK, 0 };
35
36 #ifndef OPENSSL_NO_SOCK
37 static unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
38 static int cookie_initialized = 0;
39 #endif
40 static BIO *bio_keylog = NULL;
41
42 static const char *lookup(int val, const STRINT_PAIR* list, const char* def)
43 {
44 for ( ; list->name; ++list)
45 if (list->retval == val)
46 return list->name;
47 return def;
48 }
49
50 int verify_callback(int ok, X509_STORE_CTX *ctx)
51 {
52 X509 *err_cert;
53 int err, depth;
54
55 err_cert = X509_STORE_CTX_get_current_cert(ctx);
56 err = X509_STORE_CTX_get_error(ctx);
57 depth = X509_STORE_CTX_get_error_depth(ctx);
58
59 if (!verify_args.quiet || !ok) {
60 BIO_printf(bio_err, "depth=%d ", depth);
61 if (err_cert != NULL) {
62 X509_NAME_print_ex(bio_err,
63 X509_get_subject_name(err_cert),
64 0, get_nameopt());
65 BIO_puts(bio_err, "\n");
66 } else {
67 BIO_puts(bio_err, "<no cert>\n");
68 }
69 }
70 if (!ok) {
71 BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
72 X509_verify_cert_error_string(err));
73 if (verify_args.depth < 0 || verify_args.depth >= depth) {
74 if (!verify_args.return_error)
75 ok = 1;
76 verify_args.error = err;
77 } else {
78 ok = 0;
79 verify_args.error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
80 }
81 }
82 switch (err) {
83 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
84 BIO_puts(bio_err, "issuer= ");
85 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
86 0, get_nameopt());
87 BIO_puts(bio_err, "\n");
88 break;
89 case X509_V_ERR_CERT_NOT_YET_VALID:
90 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
91 BIO_printf(bio_err, "notBefore=");
92 ASN1_TIME_print(bio_err, X509_get0_notBefore(err_cert));
93 BIO_printf(bio_err, "\n");
94 break;
95 case X509_V_ERR_CERT_HAS_EXPIRED:
96 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
97 BIO_printf(bio_err, "notAfter=");
98 ASN1_TIME_print(bio_err, X509_get0_notAfter(err_cert));
99 BIO_printf(bio_err, "\n");
100 break;
101 case X509_V_ERR_NO_EXPLICIT_POLICY:
102 if (!verify_args.quiet)
103 policies_print(ctx);
104 break;
105 }
106 if (err == X509_V_OK && ok == 2 && !verify_args.quiet)
107 policies_print(ctx);
108 if (ok && !verify_args.quiet)
109 BIO_printf(bio_err, "verify return:%d\n", ok);
110 return ok;
111 }
112
113 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
114 {
115 if (cert_file != NULL) {
116 if (SSL_CTX_use_certificate_file(ctx, cert_file,
117 SSL_FILETYPE_PEM) <= 0) {
118 BIO_printf(bio_err, "unable to get certificate from '%s'\n",
119 cert_file);
120 ERR_print_errors(bio_err);
121 return 0;
122 }
123 if (key_file == NULL)
124 key_file = cert_file;
125 if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
126 BIO_printf(bio_err, "unable to get private key from '%s'\n",
127 key_file);
128 ERR_print_errors(bio_err);
129 return 0;
130 }
131
132 /*
133 * If we are using DSA, we can copy the parameters from the private
134 * key
135 */
136
137 /*
138 * Now we know that a key and cert have been set against the SSL
139 * context
140 */
141 if (!SSL_CTX_check_private_key(ctx)) {
142 BIO_printf(bio_err,
143 "Private key does not match the certificate public key\n");
144 return 0;
145 }
146 }
147 return 1;
148 }
149
150 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
151 STACK_OF(X509) *chain, int build_chain)
152 {
153 int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
154 if (cert == NULL)
155 return 1;
156 if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
157 BIO_printf(bio_err, "error setting certificate\n");
158 ERR_print_errors(bio_err);
159 return 0;
160 }
161
162 if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
163 BIO_printf(bio_err, "error setting private key\n");
164 ERR_print_errors(bio_err);
165 return 0;
166 }
167
168 /*
169 * Now we know that a key and cert have been set against the SSL context
170 */
171 if (!SSL_CTX_check_private_key(ctx)) {
172 BIO_printf(bio_err,
173 "Private key does not match the certificate public key\n");
174 return 0;
175 }
176 if (chain && !SSL_CTX_set1_chain(ctx, chain)) {
177 BIO_printf(bio_err, "error setting certificate chain\n");
178 ERR_print_errors(bio_err);
179 return 0;
180 }
181 if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) {
182 BIO_printf(bio_err, "error building certificate chain\n");
183 ERR_print_errors(bio_err);
184 return 0;
185 }
186 return 1;
187 }
188
189 static STRINT_PAIR cert_type_list[] = {
190 {"RSA sign", TLS_CT_RSA_SIGN},
191 {"DSA sign", TLS_CT_DSS_SIGN},
192 {"RSA fixed DH", TLS_CT_RSA_FIXED_DH},
193 {"DSS fixed DH", TLS_CT_DSS_FIXED_DH},
194 {"ECDSA sign", TLS_CT_ECDSA_SIGN},
195 {"RSA fixed ECDH", TLS_CT_RSA_FIXED_ECDH},
196 {"ECDSA fixed ECDH", TLS_CT_ECDSA_FIXED_ECDH},
197 {"GOST01 Sign", TLS_CT_GOST01_SIGN},
198 {"GOST12 Sign", TLS_CT_GOST12_IANA_SIGN},
199 {NULL}
200 };
201
202 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
203 {
204 const unsigned char *p;
205 int i;
206 int cert_type_num = SSL_get0_certificate_types(s, &p);
207 if (!cert_type_num)
208 return;
209 BIO_puts(bio, "Client Certificate Types: ");
210 for (i = 0; i < cert_type_num; i++) {
211 unsigned char cert_type = p[i];
212 const char *cname = lookup((int)cert_type, cert_type_list, NULL);
213
214 if (i)
215 BIO_puts(bio, ", ");
216 if (cname != NULL)
217 BIO_puts(bio, cname);
218 else
219 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
220 }
221 BIO_puts(bio, "\n");
222 }
223
224 static const char *get_sigtype(int nid)
225 {
226 switch (nid) {
227 case EVP_PKEY_RSA:
228 return "RSA";
229
230 case EVP_PKEY_RSA_PSS:
231 return "RSA-PSS";
232
233 case EVP_PKEY_DSA:
234 return "DSA";
235
236 case EVP_PKEY_EC:
237 return "ECDSA";
238
239 case NID_ED25519:
240 return "Ed25519";
241
242 case NID_ED448:
243 return "Ed448";
244
245 case NID_id_GostR3410_2001:
246 return "gost2001";
247
248 case NID_id_GostR3410_2012_256:
249 return "gost2012_256";
250
251 case NID_id_GostR3410_2012_512:
252 return "gost2012_512";
253
254 default:
255 return NULL;
256 }
257 }
258
259 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
260 {
261 int i, nsig, client;
262 client = SSL_is_server(s) ? 0 : 1;
263 if (shared)
264 nsig = SSL_get_shared_sigalgs(s, 0, NULL, NULL, NULL, NULL, NULL);
265 else
266 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
267 if (nsig == 0)
268 return 1;
269
270 if (shared)
271 BIO_puts(out, "Shared ");
272
273 if (client)
274 BIO_puts(out, "Requested ");
275 BIO_puts(out, "Signature Algorithms: ");
276 for (i = 0; i < nsig; i++) {
277 int hash_nid, sign_nid;
278 unsigned char rhash, rsign;
279 const char *sstr = NULL;
280 if (shared)
281 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
282 &rsign, &rhash);
283 else
284 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
285 if (i)
286 BIO_puts(out, ":");
287 sstr = get_sigtype(sign_nid);
288 if (sstr)
289 BIO_printf(out, "%s", sstr);
290 else
291 BIO_printf(out, "0x%02X", (int)rsign);
292 if (hash_nid != NID_undef)
293 BIO_printf(out, "+%s", OBJ_nid2sn(hash_nid));
294 else if (sstr == NULL)
295 BIO_printf(out, "+0x%02X", (int)rhash);
296 }
297 BIO_puts(out, "\n");
298 return 1;
299 }
300
301 int ssl_print_sigalgs(BIO *out, SSL *s)
302 {
303 int nid;
304 if (!SSL_is_server(s))
305 ssl_print_client_cert_types(out, s);
306 do_print_sigalgs(out, s, 0);
307 do_print_sigalgs(out, s, 1);
308 if (SSL_get_peer_signature_nid(s, &nid) && nid != NID_undef)
309 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(nid));
310 if (SSL_get_peer_signature_type_nid(s, &nid))
311 BIO_printf(out, "Peer signature type: %s\n", get_sigtype(nid));
312 return 1;
313 }
314
315 #ifndef OPENSSL_NO_EC
316 int ssl_print_point_formats(BIO *out, SSL *s)
317 {
318 int i, nformats;
319 const char *pformats;
320 nformats = SSL_get0_ec_point_formats(s, &pformats);
321 if (nformats <= 0)
322 return 1;
323 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
324 for (i = 0; i < nformats; i++, pformats++) {
325 if (i)
326 BIO_puts(out, ":");
327 switch (*pformats) {
328 case TLSEXT_ECPOINTFORMAT_uncompressed:
329 BIO_puts(out, "uncompressed");
330 break;
331
332 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
333 BIO_puts(out, "ansiX962_compressed_prime");
334 break;
335
336 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
337 BIO_puts(out, "ansiX962_compressed_char2");
338 break;
339
340 default:
341 BIO_printf(out, "unknown(%d)", (int)*pformats);
342 break;
343
344 }
345 }
346 BIO_puts(out, "\n");
347 return 1;
348 }
349
350 int ssl_print_groups(BIO *out, SSL *s, int noshared)
351 {
352 int i, ngroups, *groups, nid;
353 const char *gname;
354
355 ngroups = SSL_get1_groups(s, NULL);
356 if (ngroups <= 0)
357 return 1;
358 groups = app_malloc(ngroups * sizeof(int), "groups to print");
359 SSL_get1_groups(s, groups);
360
361 BIO_puts(out, "Supported Elliptic Groups: ");
362 for (i = 0; i < ngroups; i++) {
363 if (i)
364 BIO_puts(out, ":");
365 nid = groups[i];
366 /* If unrecognised print out hex version */
367 if (nid & TLSEXT_nid_unknown) {
368 BIO_printf(out, "0x%04X", nid & 0xFFFF);
369 } else {
370 /* TODO(TLS1.3): Get group name here */
371 /* Use NIST name for curve if it exists */
372 gname = EC_curve_nid2nist(nid);
373 if (gname == NULL)
374 gname = OBJ_nid2sn(nid);
375 BIO_printf(out, "%s", gname);
376 }
377 }
378 OPENSSL_free(groups);
379 if (noshared) {
380 BIO_puts(out, "\n");
381 return 1;
382 }
383 BIO_puts(out, "\nShared Elliptic groups: ");
384 ngroups = SSL_get_shared_group(s, -1);
385 for (i = 0; i < ngroups; i++) {
386 if (i)
387 BIO_puts(out, ":");
388 nid = SSL_get_shared_group(s, i);
389 /* TODO(TLS1.3): Convert for DH groups */
390 gname = EC_curve_nid2nist(nid);
391 if (gname == NULL)
392 gname = OBJ_nid2sn(nid);
393 BIO_printf(out, "%s", gname);
394 }
395 if (ngroups == 0)
396 BIO_puts(out, "NONE");
397 BIO_puts(out, "\n");
398 return 1;
399 }
400 #endif
401
402 int ssl_print_tmp_key(BIO *out, SSL *s)
403 {
404 EVP_PKEY *key;
405
406 if (!SSL_get_peer_tmp_key(s, &key))
407 return 1;
408 BIO_puts(out, "Server Temp Key: ");
409 switch (EVP_PKEY_id(key)) {
410 case EVP_PKEY_RSA:
411 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
412 break;
413
414 case EVP_PKEY_DH:
415 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
416 break;
417 #ifndef OPENSSL_NO_EC
418 case EVP_PKEY_EC:
419 {
420 EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
421 int nid;
422 const char *cname;
423 nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
424 EC_KEY_free(ec);
425 cname = EC_curve_nid2nist(nid);
426 if (cname == NULL)
427 cname = OBJ_nid2sn(nid);
428 BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
429 }
430 break;
431 #endif
432 default:
433 BIO_printf(out, "%s, %d bits\n", OBJ_nid2sn(EVP_PKEY_id(key)),
434 EVP_PKEY_bits(key));
435 }
436 EVP_PKEY_free(key);
437 return 1;
438 }
439
440 long bio_dump_callback(BIO *bio, int cmd, const char *argp,
441 int argi, long argl, long ret)
442 {
443 BIO *out;
444
445 out = (BIO *)BIO_get_callback_arg(bio);
446 if (out == NULL)
447 return ret;
448
449 if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
450 BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
451 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
452 BIO_dump(out, argp, (int)ret);
453 return ret;
454 } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
455 BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
456 (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
457 BIO_dump(out, argp, (int)ret);
458 }
459 return ret;
460 }
461
462 void apps_ssl_info_callback(const SSL *s, int where, int ret)
463 {
464 const char *str;
465 int w;
466
467 w = where & ~SSL_ST_MASK;
468
469 if (w & SSL_ST_CONNECT)
470 str = "SSL_connect";
471 else if (w & SSL_ST_ACCEPT)
472 str = "SSL_accept";
473 else
474 str = "undefined";
475
476 if (where & SSL_CB_LOOP) {
477 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
478 } else if (where & SSL_CB_ALERT) {
479 str = (where & SSL_CB_READ) ? "read" : "write";
480 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
481 str,
482 SSL_alert_type_string_long(ret),
483 SSL_alert_desc_string_long(ret));
484 } else if (where & SSL_CB_EXIT) {
485 if (ret == 0)
486 BIO_printf(bio_err, "%s:failed in %s\n",
487 str, SSL_state_string_long(s));
488 else if (ret < 0)
489 BIO_printf(bio_err, "%s:error in %s\n",
490 str, SSL_state_string_long(s));
491 }
492 }
493
494 static STRINT_PAIR ssl_versions[] = {
495 {"SSL 3.0", SSL3_VERSION},
496 {"TLS 1.0", TLS1_VERSION},
497 {"TLS 1.1", TLS1_1_VERSION},
498 {"TLS 1.2", TLS1_2_VERSION},
499 {"TLS 1.3", TLS1_3_VERSION},
500 {"DTLS 1.0", DTLS1_VERSION},
501 {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
502 {NULL}
503 };
504
505 static STRINT_PAIR alert_types[] = {
506 {" close_notify", 0},
507 {" end_of_early_data", 1},
508 {" unexpected_message", 10},
509 {" bad_record_mac", 20},
510 {" decryption_failed", 21},
511 {" record_overflow", 22},
512 {" decompression_failure", 30},
513 {" handshake_failure", 40},
514 {" bad_certificate", 42},
515 {" unsupported_certificate", 43},
516 {" certificate_revoked", 44},
517 {" certificate_expired", 45},
518 {" certificate_unknown", 46},
519 {" illegal_parameter", 47},
520 {" unknown_ca", 48},
521 {" access_denied", 49},
522 {" decode_error", 50},
523 {" decrypt_error", 51},
524 {" export_restriction", 60},
525 {" protocol_version", 70},
526 {" insufficient_security", 71},
527 {" internal_error", 80},
528 {" inappropriate_fallback", 86},
529 {" user_canceled", 90},
530 {" no_renegotiation", 100},
531 {" missing_extension", 109},
532 {" unsupported_extension", 110},
533 {" certificate_unobtainable", 111},
534 {" unrecognized_name", 112},
535 {" bad_certificate_status_response", 113},
536 {" bad_certificate_hash_value", 114},
537 {" unknown_psk_identity", 115},
538 {" certificate_required", 116},
539 {NULL}
540 };
541
542 static STRINT_PAIR handshakes[] = {
543 {", HelloRequest", SSL3_MT_HELLO_REQUEST},
544 {", ClientHello", SSL3_MT_CLIENT_HELLO},
545 {", ServerHello", SSL3_MT_SERVER_HELLO},
546 {", HelloVerifyRequest", DTLS1_MT_HELLO_VERIFY_REQUEST},
547 {", NewSessionTicket", SSL3_MT_NEWSESSION_TICKET},
548 {", EndOfEarlyData", SSL3_MT_END_OF_EARLY_DATA},
549 {", EncryptedExtensions", SSL3_MT_ENCRYPTED_EXTENSIONS},
550 {", Certificate", SSL3_MT_CERTIFICATE},
551 {", ServerKeyExchange", SSL3_MT_SERVER_KEY_EXCHANGE},
552 {", CertificateRequest", SSL3_MT_CERTIFICATE_REQUEST},
553 {", ServerHelloDone", SSL3_MT_SERVER_DONE},
554 {", CertificateVerify", SSL3_MT_CERTIFICATE_VERIFY},
555 {", ClientKeyExchange", SSL3_MT_CLIENT_KEY_EXCHANGE},
556 {", Finished", SSL3_MT_FINISHED},
557 {", CertificateUrl", SSL3_MT_CERTIFICATE_URL},
558 {", CertificateStatus", SSL3_MT_CERTIFICATE_STATUS},
559 {", SupplementalData", SSL3_MT_SUPPLEMENTAL_DATA},
560 {", KeyUpdate", SSL3_MT_KEY_UPDATE},
561 #ifndef OPENSSL_NO_NEXTPROTONEG
562 {", NextProto", SSL3_MT_NEXT_PROTO},
563 #endif
564 {", MessageHash", SSL3_MT_MESSAGE_HASH},
565 {NULL}
566 };
567
568 void msg_cb(int write_p, int version, int content_type, const void *buf,
569 size_t len, SSL *ssl, void *arg)
570 {
571 BIO *bio = arg;
572 const char *str_write_p = write_p ? ">>>" : "<<<";
573 char tmpbuf[128];
574 const char *str_version, *str_content_type = "", *str_details1 = "", *str_details2 = "";
575 const unsigned char* bp = buf;
576
577 if (version == SSL3_VERSION ||
578 version == TLS1_VERSION ||
579 version == TLS1_1_VERSION ||
580 version == TLS1_2_VERSION ||
581 version == TLS1_3_VERSION ||
582 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
583 str_version = lookup(version, ssl_versions, "???");
584 switch (content_type) {
585 case SSL3_RT_CHANGE_CIPHER_SPEC:
586 /* type 20 */
587 str_content_type = ", ChangeCipherSpec";
588 break;
589 case SSL3_RT_ALERT:
590 /* type 21 */
591 str_content_type = ", Alert";
592 str_details1 = ", ???";
593 if (len == 2) {
594 switch (bp[0]) {
595 case 1:
596 str_details1 = ", warning";
597 break;
598 case 2:
599 str_details1 = ", fatal";
600 break;
601 }
602 str_details2 = lookup((int)bp[1], alert_types, " ???");
603 }
604 break;
605 case SSL3_RT_HANDSHAKE:
606 /* type 22 */
607 str_content_type = ", Handshake";
608 str_details1 = "???";
609 if (len > 0)
610 str_details1 = lookup((int)bp[0], handshakes, "???");
611 break;
612 case SSL3_RT_APPLICATION_DATA:
613 /* type 23 */
614 str_content_type = ", ApplicationData";
615 break;
616 case SSL3_RT_HEADER:
617 /* type 256 */
618 str_content_type = ", RecordHeader";
619 break;
620 case SSL3_RT_INNER_CONTENT_TYPE:
621 /* type 257 */
622 str_content_type = ", InnerContent";
623 break;
624 default:
625 BIO_snprintf(tmpbuf, sizeof(tmpbuf)-1, ", Unknown (content_type=%d)", content_type);
626 str_content_type = tmpbuf;
627 }
628 } else {
629 BIO_snprintf(tmpbuf, sizeof(tmpbuf)-1, "Not TLS data or unknown version (version=%d, content_type=%d)", version, content_type);
630 str_version = tmpbuf;
631 }
632
633 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
634 str_content_type, (unsigned long)len, str_details1,
635 str_details2);
636
637 if (len > 0) {
638 size_t num, i;
639
640 BIO_printf(bio, " ");
641 num = len;
642 for (i = 0; i < num; i++) {
643 if (i % 16 == 0 && i > 0)
644 BIO_printf(bio, "\n ");
645 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
646 }
647 if (i < len)
648 BIO_printf(bio, " ...");
649 BIO_printf(bio, "\n");
650 }
651 (void)BIO_flush(bio);
652 }
653
654 static STRINT_PAIR tlsext_types[] = {
655 {"server name", TLSEXT_TYPE_server_name},
656 {"max fragment length", TLSEXT_TYPE_max_fragment_length},
657 {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
658 {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
659 {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
660 {"status request", TLSEXT_TYPE_status_request},
661 {"user mapping", TLSEXT_TYPE_user_mapping},
662 {"client authz", TLSEXT_TYPE_client_authz},
663 {"server authz", TLSEXT_TYPE_server_authz},
664 {"cert type", TLSEXT_TYPE_cert_type},
665 {"supported_groups", TLSEXT_TYPE_supported_groups},
666 {"EC point formats", TLSEXT_TYPE_ec_point_formats},
667 {"SRP", TLSEXT_TYPE_srp},
668 {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
669 {"use SRTP", TLSEXT_TYPE_use_srtp},
670 {"session ticket", TLSEXT_TYPE_session_ticket},
671 {"renegotiation info", TLSEXT_TYPE_renegotiate},
672 {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp},
673 {"TLS padding", TLSEXT_TYPE_padding},
674 #ifdef TLSEXT_TYPE_next_proto_neg
675 {"next protocol", TLSEXT_TYPE_next_proto_neg},
676 #endif
677 #ifdef TLSEXT_TYPE_encrypt_then_mac
678 {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
679 #endif
680 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
681 {"application layer protocol negotiation",
682 TLSEXT_TYPE_application_layer_protocol_negotiation},
683 #endif
684 #ifdef TLSEXT_TYPE_extended_master_secret
685 {"extended master secret", TLSEXT_TYPE_extended_master_secret},
686 #endif
687 {"key share", TLSEXT_TYPE_key_share},
688 {"supported versions", TLSEXT_TYPE_supported_versions},
689 {"psk", TLSEXT_TYPE_psk},
690 {"psk kex modes", TLSEXT_TYPE_psk_kex_modes},
691 {"certificate authorities", TLSEXT_TYPE_certificate_authorities},
692 {"post handshake auth", TLSEXT_TYPE_post_handshake_auth},
693 {NULL}
694 };
695
696 /* from rfc8446 4.2.3. + gost (https://tools.ietf.org/id/draft-smyshlyaev-tls12-gost-suites-04.html) */
697 static STRINT_PAIR signature_tls13_scheme_list[] = {
698 {"rsa_pkcs1_sha1", 0x0201 /* TLSEXT_SIGALG_rsa_pkcs1_sha1 */},
699 {"ecdsa_sha1", 0x0203 /* TLSEXT_SIGALG_ecdsa_sha1 */},
700 /* {"rsa_pkcs1_sha224", 0x0301 TLSEXT_SIGALG_rsa_pkcs1_sha224}, not in rfc8446 */
701 /* {"ecdsa_sha224", 0x0303 TLSEXT_SIGALG_ecdsa_sha224} not in rfc8446 */
702 {"rsa_pkcs1_sha256", 0x0401 /* TLSEXT_SIGALG_rsa_pkcs1_sha256 */},
703 {"ecdsa_secp256r1_sha256", 0x0403 /* TLSEXT_SIGALG_ecdsa_secp256r1_sha256 */},
704 {"rsa_pkcs1_sha384", 0x0501 /* TLSEXT_SIGALG_rsa_pkcs1_sha384 */},
705 {"ecdsa_secp384r1_sha384", 0x0503 /* TLSEXT_SIGALG_ecdsa_secp384r1_sha384 */},
706 {"rsa_pkcs1_sha512", 0x0601 /* TLSEXT_SIGALG_rsa_pkcs1_sha512 */},
707 {"ecdsa_secp521r1_sha512", 0x0603 /* TLSEXT_SIGALG_ecdsa_secp521r1_sha512 */},
708 {"rsa_pss_rsae_sha256", 0x0804 /* TLSEXT_SIGALG_rsa_pss_rsae_sha256 */},
709 {"rsa_pss_rsae_sha384", 0x0805 /* TLSEXT_SIGALG_rsa_pss_rsae_sha384 */},
710 {"rsa_pss_rsae_sha512", 0x0806 /* TLSEXT_SIGALG_rsa_pss_rsae_sha512 */},
711 {"ed25519", 0x0807 /* TLSEXT_SIGALG_ed25519 */},
712 {"ed448", 0x0808 /* TLSEXT_SIGALG_ed448 */},
713 {"rsa_pss_pss_sha256", 0x0809 /* TLSEXT_SIGALG_rsa_pss_pss_sha256 */},
714 {"rsa_pss_pss_sha384", 0x080a /* TLSEXT_SIGALG_rsa_pss_pss_sha384 */},
715 {"rsa_pss_pss_sha512", 0x080b /* TLSEXT_SIGALG_rsa_pss_pss_sha512 */},
716 {"gostr34102001", 0xeded /* TLSEXT_SIGALG_gostr34102001_gostr3411 */},
717 {"gostr34102012_256", 0xeeee /* TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 */},
718 {"gostr34102012_512", 0xefef /* TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 */},
719 {NULL}
720 };
721
722 /* from rfc5246 7.4.1.4.1. */
723 static STRINT_PAIR signature_tls12_alg_list[] = {
724 {"anonymous", TLSEXT_signature_anonymous /* 0 */},
725 {"RSA", TLSEXT_signature_rsa /* 1 */},
726 {"DSA", TLSEXT_signature_dsa /* 2 */},
727 {"ECDSA", TLSEXT_signature_ecdsa /* 3 */},
728 {NULL}
729 };
730
731 /* from rfc5246 7.4.1.4.1. */
732 static STRINT_PAIR signature_tls12_hash_list[] = {
733 {"none", TLSEXT_hash_none /* 0 */},
734 {"MD5", TLSEXT_hash_md5 /* 1 */},
735 {"SHA1", TLSEXT_hash_sha1 /* 2 */},
736 {"SHA224", TLSEXT_hash_sha224 /* 3 */},
737 {"SHA256", TLSEXT_hash_sha256 /* 4 */},
738 {"SHA384", TLSEXT_hash_sha384 /* 5 */},
739 {"SHA512", TLSEXT_hash_sha512 /* 6 */},
740 {NULL}
741 };
742
743 void tlsext_cb(SSL *s, int client_server, int type,
744 const unsigned char *data, int len, void *arg)
745 {
746 BIO *bio = arg;
747 const char *extname = lookup(type, tlsext_types, "unknown");
748
749 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
750 client_server ? "server" : "client", extname, type, len);
751 BIO_dump(bio, (const char *)data, len);
752 (void)BIO_flush(bio);
753 }
754
755 #ifndef OPENSSL_NO_SOCK
756 int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
757 unsigned int *cookie_len)
758 {
759 unsigned char *buffer = NULL;
760 size_t length = 0;
761 unsigned short port;
762 BIO_ADDR *lpeer = NULL, *peer = NULL;
763 int res = 0;
764 EVP_MAC *hmac = NULL;
765 EVP_MAC_CTX *ctx = NULL;
766 OSSL_PARAM params[3], *p = params;
767 size_t mac_len;
768
769 /* Initialize a random secret */
770 if (!cookie_initialized) {
771 if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
772 BIO_printf(bio_err, "error setting random cookie secret\n");
773 return 0;
774 }
775 cookie_initialized = 1;
776 }
777
778 if (SSL_is_dtls(ssl)) {
779 lpeer = peer = BIO_ADDR_new();
780 if (peer == NULL) {
781 BIO_printf(bio_err, "memory full\n");
782 return 0;
783 }
784
785 /* Read peer information */
786 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer);
787 } else {
788 peer = ourpeer;
789 }
790
791 /* Create buffer with peer's address and port */
792 if (!BIO_ADDR_rawaddress(peer, NULL, &length)) {
793 BIO_printf(bio_err, "Failed getting peer address\n");
794 return 0;
795 }
796 OPENSSL_assert(length != 0);
797 port = BIO_ADDR_rawport(peer);
798 length += sizeof(port);
799 buffer = app_malloc(length, "cookie generate buffer");
800
801 memcpy(buffer, &port, sizeof(port));
802 BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL);
803
804 /* Calculate HMAC of buffer using the secret */
805 hmac = EVP_MAC_fetch(NULL, "HMAC", NULL);
806 if (hmac == NULL) {
807 BIO_printf(bio_err, "HMAC not found\n");
808 goto end;
809 }
810 ctx = EVP_MAC_CTX_new(hmac);
811 if (ctx == NULL) {
812 BIO_printf(bio_err, "HMAC context allocation failed\n");
813 goto end;
814 }
815 *p++ = OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_DIGEST, "SHA1", 0);
816 *p++ = OSSL_PARAM_construct_octet_string(OSSL_MAC_PARAM_KEY, cookie_secret,
817 COOKIE_SECRET_LENGTH);
818 *p = OSSL_PARAM_construct_end();
819 if (!EVP_MAC_CTX_set_params(ctx, params)) {
820 BIO_printf(bio_err, "HMAC context parameter setting failed\n");
821 goto end;
822 }
823 if (!EVP_MAC_init(ctx)) {
824 BIO_printf(bio_err, "HMAC context initialisation failed\n");
825 goto end;
826 }
827 if (!EVP_MAC_update(ctx, buffer, length)) {
828 BIO_printf(bio_err, "HMAC context update failed\n");
829 goto end;
830 }
831 if (!EVP_MAC_final(ctx, cookie, &mac_len, DTLS1_COOKIE_LENGTH)) {
832 BIO_printf(bio_err, "HMAC context final failed\n");
833 goto end;
834 }
835 *cookie_len = (int)mac_len;
836 res = 1;
837 end:
838 OPENSSL_free(buffer);
839 BIO_ADDR_free(lpeer);
840
841 return res;
842 }
843
844 int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
845 unsigned int cookie_len)
846 {
847 unsigned char result[EVP_MAX_MD_SIZE];
848 unsigned int resultlength;
849
850 /* Note: we check cookie_initialized because if it's not,
851 * it cannot be valid */
852 if (cookie_initialized
853 && generate_cookie_callback(ssl, result, &resultlength)
854 && cookie_len == resultlength
855 && memcmp(result, cookie, resultlength) == 0)
856 return 1;
857
858 return 0;
859 }
860
861 int generate_stateless_cookie_callback(SSL *ssl, unsigned char *cookie,
862 size_t *cookie_len)
863 {
864 unsigned int temp = 0;
865
866 int res = generate_cookie_callback(ssl, cookie, &temp);
867 *cookie_len = temp;
868 return res;
869 }
870
871 int verify_stateless_cookie_callback(SSL *ssl, const unsigned char *cookie,
872 size_t cookie_len)
873 {
874 return verify_cookie_callback(ssl, cookie, cookie_len);
875 }
876
877 #endif
878
879 /*
880 * Example of extended certificate handling. Where the standard support of
881 * one certificate per algorithm is not sufficient an application can decide
882 * which certificate(s) to use at runtime based on whatever criteria it deems
883 * appropriate.
884 */
885
886 /* Linked list of certificates, keys and chains */
887 struct ssl_excert_st {
888 int certform;
889 const char *certfile;
890 int keyform;
891 const char *keyfile;
892 const char *chainfile;
893 X509 *cert;
894 EVP_PKEY *key;
895 STACK_OF(X509) *chain;
896 int build_chain;
897 struct ssl_excert_st *next, *prev;
898 };
899
900 static STRINT_PAIR chain_flags[] = {
901 {"Overall Validity", CERT_PKEY_VALID},
902 {"Sign with EE key", CERT_PKEY_SIGN},
903 {"EE signature", CERT_PKEY_EE_SIGNATURE},
904 {"CA signature", CERT_PKEY_CA_SIGNATURE},
905 {"EE key parameters", CERT_PKEY_EE_PARAM},
906 {"CA key parameters", CERT_PKEY_CA_PARAM},
907 {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
908 {"Issuer Name", CERT_PKEY_ISSUER_NAME},
909 {"Certificate Type", CERT_PKEY_CERT_TYPE},
910 {NULL}
911 };
912
913 static void print_chain_flags(SSL *s, int flags)
914 {
915 STRINT_PAIR *pp;
916
917 for (pp = chain_flags; pp->name; ++pp)
918 BIO_printf(bio_err, "\t%s: %s\n",
919 pp->name,
920 (flags & pp->retval) ? "OK" : "NOT OK");
921 BIO_printf(bio_err, "\tSuite B: ");
922 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
923 BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
924 else
925 BIO_printf(bio_err, "not tested\n");
926 }
927
928 /*
929 * Very basic selection callback: just use any certificate chain reported as
930 * valid. More sophisticated could prioritise according to local policy.
931 */
932 static int set_cert_cb(SSL *ssl, void *arg)
933 {
934 int i, rv;
935 SSL_EXCERT *exc = arg;
936 #ifdef CERT_CB_TEST_RETRY
937 static int retry_cnt;
938 if (retry_cnt < 5) {
939 retry_cnt++;
940 BIO_printf(bio_err,
941 "Certificate callback retry test: count %d\n",
942 retry_cnt);
943 return -1;
944 }
945 #endif
946 SSL_certs_clear(ssl);
947
948 if (exc == NULL)
949 return 1;
950
951 /*
952 * Go to end of list and traverse backwards since we prepend newer
953 * entries this retains the original order.
954 */
955 while (exc->next != NULL)
956 exc = exc->next;
957
958 i = 0;
959
960 while (exc != NULL) {
961 i++;
962 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
963 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
964 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
965 get_nameopt());
966 BIO_puts(bio_err, "\n");
967 print_chain_flags(ssl, rv);
968 if (rv & CERT_PKEY_VALID) {
969 if (!SSL_use_certificate(ssl, exc->cert)
970 || !SSL_use_PrivateKey(ssl, exc->key)) {
971 return 0;
972 }
973 /*
974 * NB: we wouldn't normally do this as it is not efficient
975 * building chains on each connection better to cache the chain
976 * in advance.
977 */
978 if (exc->build_chain) {
979 if (!SSL_build_cert_chain(ssl, 0))
980 return 0;
981 } else if (exc->chain != NULL) {
982 SSL_set1_chain(ssl, exc->chain);
983 }
984 }
985 exc = exc->prev;
986 }
987 return 1;
988 }
989
990 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
991 {
992 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
993 }
994
995 static int ssl_excert_prepend(SSL_EXCERT **pexc)
996 {
997 SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
998
999 memset(exc, 0, sizeof(*exc));
1000
1001 exc->next = *pexc;
1002 *pexc = exc;
1003
1004 if (exc->next) {
1005 exc->certform = exc->next->certform;
1006 exc->keyform = exc->next->keyform;
1007 exc->next->prev = exc;
1008 } else {
1009 exc->certform = FORMAT_PEM;
1010 exc->keyform = FORMAT_PEM;
1011 }
1012 return 1;
1013
1014 }
1015
1016 void ssl_excert_free(SSL_EXCERT *exc)
1017 {
1018 SSL_EXCERT *curr;
1019
1020 if (exc == NULL)
1021 return;
1022 while (exc) {
1023 X509_free(exc->cert);
1024 EVP_PKEY_free(exc->key);
1025 sk_X509_pop_free(exc->chain, X509_free);
1026 curr = exc;
1027 exc = exc->next;
1028 OPENSSL_free(curr);
1029 }
1030 }
1031
1032 int load_excert(SSL_EXCERT **pexc)
1033 {
1034 SSL_EXCERT *exc = *pexc;
1035 if (exc == NULL)
1036 return 1;
1037 /* If nothing in list, free and set to NULL */
1038 if (exc->certfile == NULL && exc->next == NULL) {
1039 ssl_excert_free(exc);
1040 *pexc = NULL;
1041 return 1;
1042 }
1043 for (; exc; exc = exc->next) {
1044 if (exc->certfile == NULL) {
1045 BIO_printf(bio_err, "Missing filename\n");
1046 return 0;
1047 }
1048 exc->cert = load_cert(exc->certfile, exc->certform,
1049 "Server Certificate");
1050 if (exc->cert == NULL)
1051 return 0;
1052 if (exc->keyfile != NULL) {
1053 exc->key = load_key(exc->keyfile, exc->keyform,
1054 0, NULL, NULL, "Server Key");
1055 } else {
1056 exc->key = load_key(exc->certfile, exc->certform,
1057 0, NULL, NULL, "Server Key");
1058 }
1059 if (exc->key == NULL)
1060 return 0;
1061 if (exc->chainfile != NULL) {
1062 if (!load_certs(exc->chainfile, &exc->chain, NULL, "Server Chain"))
1063 return 0;
1064 }
1065 }
1066 return 1;
1067 }
1068
1069 enum range { OPT_X_ENUM };
1070
1071 int args_excert(int opt, SSL_EXCERT **pexc)
1072 {
1073 SSL_EXCERT *exc = *pexc;
1074
1075 assert(opt > OPT_X__FIRST);
1076 assert(opt < OPT_X__LAST);
1077
1078 if (exc == NULL) {
1079 if (!ssl_excert_prepend(&exc)) {
1080 BIO_printf(bio_err, " %s: Error initialising xcert\n",
1081 opt_getprog());
1082 goto err;
1083 }
1084 *pexc = exc;
1085 }
1086
1087 switch ((enum range)opt) {
1088 case OPT_X__FIRST:
1089 case OPT_X__LAST:
1090 return 0;
1091 case OPT_X_CERT:
1092 if (exc->certfile != NULL && !ssl_excert_prepend(&exc)) {
1093 BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
1094 goto err;
1095 }
1096 *pexc = exc;
1097 exc->certfile = opt_arg();
1098 break;
1099 case OPT_X_KEY:
1100 if (exc->keyfile != NULL) {
1101 BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
1102 goto err;
1103 }
1104 exc->keyfile = opt_arg();
1105 break;
1106 case OPT_X_CHAIN:
1107 if (exc->chainfile != NULL) {
1108 BIO_printf(bio_err, "%s: Chain already specified\n",
1109 opt_getprog());
1110 goto err;
1111 }
1112 exc->chainfile = opt_arg();
1113 break;
1114 case OPT_X_CHAIN_BUILD:
1115 exc->build_chain = 1;
1116 break;
1117 case OPT_X_CERTFORM:
1118 if (!opt_format(opt_arg(), OPT_FMT_ANY, &exc->certform))
1119 return 0;
1120 break;
1121 case OPT_X_KEYFORM:
1122 if (!opt_format(opt_arg(), OPT_FMT_ANY, &exc->keyform))
1123 return 0;
1124 break;
1125 }
1126 return 1;
1127
1128 err:
1129 ERR_print_errors(bio_err);
1130 ssl_excert_free(exc);
1131 *pexc = NULL;
1132 return 0;
1133 }
1134
1135 static void print_raw_cipherlist(SSL *s)
1136 {
1137 const unsigned char *rlist;
1138 static const unsigned char scsv_id[] = { 0, 0xFF };
1139 size_t i, rlistlen, num;
1140 if (!SSL_is_server(s))
1141 return;
1142 num = SSL_get0_raw_cipherlist(s, NULL);
1143 OPENSSL_assert(num == 2);
1144 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
1145 BIO_puts(bio_err, "Client cipher list: ");
1146 for (i = 0; i < rlistlen; i += num, rlist += num) {
1147 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
1148 if (i)
1149 BIO_puts(bio_err, ":");
1150 if (c != NULL) {
1151 BIO_puts(bio_err, SSL_CIPHER_get_name(c));
1152 } else if (memcmp(rlist, scsv_id, num) == 0) {
1153 BIO_puts(bio_err, "SCSV");
1154 } else {
1155 size_t j;
1156 BIO_puts(bio_err, "0x");
1157 for (j = 0; j < num; j++)
1158 BIO_printf(bio_err, "%02X", rlist[j]);
1159 }
1160 }
1161 BIO_puts(bio_err, "\n");
1162 }
1163
1164 /*
1165 * Hex encoder for TLSA RRdata, not ':' delimited.
1166 */
1167 static char *hexencode(const unsigned char *data, size_t len)
1168 {
1169 static const char *hex = "0123456789abcdef";
1170 char *out;
1171 char *cp;
1172 size_t outlen = 2 * len + 1;
1173 int ilen = (int) outlen;
1174
1175 if (outlen < len || ilen < 0 || outlen != (size_t)ilen) {
1176 BIO_printf(bio_err, "%s: %zu-byte buffer too large to hexencode\n",
1177 opt_getprog(), len);
1178 exit(1);
1179 }
1180 cp = out = app_malloc(ilen, "TLSA hex data buffer");
1181
1182 while (len-- > 0) {
1183 *cp++ = hex[(*data >> 4) & 0x0f];
1184 *cp++ = hex[*data++ & 0x0f];
1185 }
1186 *cp = '\0';
1187 return out;
1188 }
1189
1190 void print_verify_detail(SSL *s, BIO *bio)
1191 {
1192 int mdpth;
1193 EVP_PKEY *mspki;
1194 long verify_err = SSL_get_verify_result(s);
1195
1196 if (verify_err == X509_V_OK) {
1197 const char *peername = SSL_get0_peername(s);
1198
1199 BIO_printf(bio, "Verification: OK\n");
1200 if (peername != NULL)
1201 BIO_printf(bio, "Verified peername: %s\n", peername);
1202 } else {
1203 const char *reason = X509_verify_cert_error_string(verify_err);
1204
1205 BIO_printf(bio, "Verification error: %s\n", reason);
1206 }
1207
1208 if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) {
1209 uint8_t usage, selector, mtype;
1210 const unsigned char *data = NULL;
1211 size_t dlen = 0;
1212 char *hexdata;
1213
1214 mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen);
1215
1216 /*
1217 * The TLSA data field can be quite long when it is a certificate,
1218 * public key or even a SHA2-512 digest. Because the initial octets of
1219 * ASN.1 certificates and public keys contain mostly boilerplate OIDs
1220 * and lengths, we show the last 12 bytes of the data instead, as these
1221 * are more likely to distinguish distinct TLSA records.
1222 */
1223 #define TLSA_TAIL_SIZE 12
1224 if (dlen > TLSA_TAIL_SIZE)
1225 hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE);
1226 else
1227 hexdata = hexencode(data, dlen);
1228 BIO_printf(bio, "DANE TLSA %d %d %d %s%s %s at depth %d\n",
1229 usage, selector, mtype,
1230 (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata,
1231 (mspki != NULL) ? "signed the certificate" :
1232 mdpth ? "matched TA certificate" : "matched EE certificate",
1233 mdpth);
1234 OPENSSL_free(hexdata);
1235 }
1236 }
1237
1238 void print_ssl_summary(SSL *s)
1239 {
1240 const SSL_CIPHER *c;
1241 X509 *peer;
1242
1243 BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
1244 print_raw_cipherlist(s);
1245 c = SSL_get_current_cipher(s);
1246 BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1247 do_print_sigalgs(bio_err, s, 0);
1248 peer = SSL_get0_peer_certificate(s);
1249 if (peer != NULL) {
1250 int nid;
1251
1252 BIO_puts(bio_err, "Peer certificate: ");
1253 X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1254 0, get_nameopt());
1255 BIO_puts(bio_err, "\n");
1256 if (SSL_get_peer_signature_nid(s, &nid))
1257 BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1258 if (SSL_get_peer_signature_type_nid(s, &nid))
1259 BIO_printf(bio_err, "Signature type: %s\n", get_sigtype(nid));
1260 print_verify_detail(s, bio_err);
1261 } else {
1262 BIO_puts(bio_err, "No peer certificate\n");
1263 }
1264 #ifndef OPENSSL_NO_EC
1265 ssl_print_point_formats(bio_err, s);
1266 if (SSL_is_server(s))
1267 ssl_print_groups(bio_err, s, 1);
1268 else
1269 ssl_print_tmp_key(bio_err, s);
1270 #else
1271 if (!SSL_is_server(s))
1272 ssl_print_tmp_key(bio_err, s);
1273 #endif
1274 }
1275
1276 int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
1277 SSL_CTX *ctx)
1278 {
1279 int i;
1280
1281 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1282 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1283 const char *flag = sk_OPENSSL_STRING_value(str, i);
1284 const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
1285 if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
1286 if (arg != NULL)
1287 BIO_printf(bio_err, "Error with command: \"%s %s\"\n",
1288 flag, arg);
1289 else
1290 BIO_printf(bio_err, "Error with command: \"%s\"\n", flag);
1291 ERR_print_errors(bio_err);
1292 return 0;
1293 }
1294 }
1295 if (!SSL_CONF_CTX_finish(cctx)) {
1296 BIO_puts(bio_err, "Error finishing context\n");
1297 ERR_print_errors(bio_err);
1298 return 0;
1299 }
1300 return 1;
1301 }
1302
1303 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1304 {
1305 X509_CRL *crl;
1306 int i;
1307 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1308 crl = sk_X509_CRL_value(crls, i);
1309 X509_STORE_add_crl(st, crl);
1310 }
1311 return 1;
1312 }
1313
1314 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1315 {
1316 X509_STORE *st;
1317 st = SSL_CTX_get_cert_store(ctx);
1318 add_crls_store(st, crls);
1319 if (crl_download)
1320 store_setup_crl_download(st);
1321 return 1;
1322 }
1323
1324 int ssl_load_stores(SSL_CTX *ctx,
1325 const char *vfyCApath, const char *vfyCAfile,
1326 const char *vfyCAstore,
1327 const char *chCApath, const char *chCAfile,
1328 const char *chCAstore,
1329 STACK_OF(X509_CRL) *crls, int crl_download)
1330 {
1331 X509_STORE *vfy = NULL, *ch = NULL;
1332 int rv = 0;
1333 if (vfyCApath != NULL || vfyCAfile != NULL || vfyCAstore != NULL) {
1334 vfy = X509_STORE_new();
1335 if (vfy == NULL)
1336 goto err;
1337 if (vfyCAfile != NULL && !X509_STORE_load_file(vfy, vfyCAfile))
1338 goto err;
1339 if (vfyCApath != NULL && !X509_STORE_load_path(vfy, vfyCApath))
1340 goto err;
1341 if (vfyCAstore != NULL && !X509_STORE_load_store(vfy, vfyCAstore))
1342 goto err;
1343 add_crls_store(vfy, crls);
1344 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1345 if (crl_download)
1346 store_setup_crl_download(vfy);
1347 }
1348 if (chCApath != NULL || chCAfile != NULL || chCAstore != NULL) {
1349 ch = X509_STORE_new();
1350 if (ch == NULL)
1351 goto err;
1352 if (chCAfile != NULL && !X509_STORE_load_file(ch, chCAfile))
1353 goto err;
1354 if (chCApath != NULL && !X509_STORE_load_path(ch, chCApath))
1355 goto err;
1356 if (chCAstore != NULL && !X509_STORE_load_store(ch, chCAstore))
1357 goto err;
1358 SSL_CTX_set1_chain_cert_store(ctx, ch);
1359 }
1360 rv = 1;
1361 err:
1362 X509_STORE_free(vfy);
1363 X509_STORE_free(ch);
1364 return rv;
1365 }
1366
1367 /* Verbose print out of security callback */
1368
1369 typedef struct {
1370 BIO *out;
1371 int verbose;
1372 int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1373 void *other, void *ex);
1374 } security_debug_ex;
1375
1376 static STRINT_PAIR callback_types[] = {
1377 {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
1378 {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
1379 {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
1380 #ifndef OPENSSL_NO_DH
1381 {"Temp DH key bits", SSL_SECOP_TMP_DH},
1382 #endif
1383 {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
1384 {"Shared Curve", SSL_SECOP_CURVE_SHARED},
1385 {"Check Curve", SSL_SECOP_CURVE_CHECK},
1386 {"Supported Signature Algorithm", SSL_SECOP_SIGALG_SUPPORTED},
1387 {"Shared Signature Algorithm", SSL_SECOP_SIGALG_SHARED},
1388 {"Check Signature Algorithm", SSL_SECOP_SIGALG_CHECK},
1389 {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
1390 {"Certificate chain EE key", SSL_SECOP_EE_KEY},
1391 {"Certificate chain CA key", SSL_SECOP_CA_KEY},
1392 {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
1393 {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
1394 {"Certificate chain CA digest", SSL_SECOP_CA_MD},
1395 {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
1396 {"SSL compression", SSL_SECOP_COMPRESSION},
1397 {"Session ticket", SSL_SECOP_TICKET},
1398 {NULL}
1399 };
1400
1401 static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
1402 int op, int bits, int nid,
1403 void *other, void *ex)
1404 {
1405 security_debug_ex *sdb = ex;
1406 int rv, show_bits = 1, cert_md = 0;
1407 const char *nm;
1408 int show_nm;
1409 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1410 if (rv == 1 && sdb->verbose < 2)
1411 return 1;
1412 BIO_puts(sdb->out, "Security callback: ");
1413
1414 nm = lookup(op, callback_types, NULL);
1415 show_nm = nm != NULL;
1416 switch (op) {
1417 case SSL_SECOP_TICKET:
1418 case SSL_SECOP_COMPRESSION:
1419 show_bits = 0;
1420 show_nm = 0;
1421 break;
1422 case SSL_SECOP_VERSION:
1423 BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1424 show_bits = 0;
1425 show_nm = 0;
1426 break;
1427 case SSL_SECOP_CA_MD:
1428 case SSL_SECOP_PEER_CA_MD:
1429 cert_md = 1;
1430 break;
1431 case SSL_SECOP_SIGALG_SUPPORTED:
1432 case SSL_SECOP_SIGALG_SHARED:
1433 case SSL_SECOP_SIGALG_CHECK:
1434 case SSL_SECOP_SIGALG_MASK:
1435 show_nm = 0;
1436 break;
1437 }
1438 if (show_nm)
1439 BIO_printf(sdb->out, "%s=", nm);
1440
1441 switch (op & SSL_SECOP_OTHER_TYPE) {
1442
1443 case SSL_SECOP_OTHER_CIPHER:
1444 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1445 break;
1446
1447 #ifndef OPENSSL_NO_EC
1448 case SSL_SECOP_OTHER_CURVE:
1449 {
1450 const char *cname;
1451 cname = EC_curve_nid2nist(nid);
1452 if (cname == NULL)
1453 cname = OBJ_nid2sn(nid);
1454 BIO_puts(sdb->out, cname);
1455 }
1456 break;
1457 #endif
1458 #ifndef OPENSSL_NO_DH
1459 case SSL_SECOP_OTHER_DH:
1460 {
1461 DH *dh = other;
1462 EVP_PKEY *pkey = EVP_PKEY_new();
1463 int fail = 1;
1464
1465 if (pkey != NULL) {
1466 if (EVP_PKEY_set1_DH(pkey, dh)) {
1467 BIO_printf(sdb->out, "%d", EVP_PKEY_bits(pkey));
1468 fail = 0;
1469 }
1470
1471 EVP_PKEY_free(pkey);
1472 }
1473 if (fail)
1474 BIO_printf(sdb->out, "s_cb.c:security_callback_debug op=0x%x",
1475 op);
1476 break;
1477 }
1478 #endif
1479 case SSL_SECOP_OTHER_CERT:
1480 {
1481 if (cert_md) {
1482 int sig_nid = X509_get_signature_nid(other);
1483 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1484 } else {
1485 EVP_PKEY *pkey = X509_get0_pubkey(other);
1486 const char *algname = "";
1487 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1488 &algname, EVP_PKEY_get0_asn1(pkey));
1489 BIO_printf(sdb->out, "%s, bits=%d",
1490 algname, EVP_PKEY_bits(pkey));
1491 }
1492 break;
1493 }
1494 case SSL_SECOP_OTHER_SIGALG:
1495 {
1496 const unsigned char *salg = other;
1497 const char *sname = NULL;
1498 int raw_sig_code = (salg[0] << 8) + salg[1]; /* always big endian (msb, lsb) */
1499 /* raw_sig_code: signature_scheme from tls1.3, or signature_and_hash from tls1.2 */
1500
1501 if (nm != NULL)
1502 BIO_printf(sdb->out, "%s", nm);
1503 else
1504 BIO_printf(sdb->out, "s_cb.c:security_callback_debug op=0x%x", op);
1505
1506 sname = lookup(raw_sig_code, signature_tls13_scheme_list, NULL);
1507 if (sname != NULL) {
1508 BIO_printf(sdb->out, " scheme=%s", sname);
1509 } else {
1510 int alg_code = salg[1];
1511 int hash_code = salg[0];
1512 const char *alg_str = lookup(alg_code, signature_tls12_alg_list, NULL);
1513 const char *hash_str = lookup(hash_code, signature_tls12_hash_list, NULL);
1514
1515 if (alg_str != NULL && hash_str != NULL)
1516 BIO_printf(sdb->out, " digest=%s, algorithm=%s", hash_str, alg_str);
1517 else
1518 BIO_printf(sdb->out, " scheme=unknown(0x%04x)", raw_sig_code);
1519 }
1520 }
1521
1522 }
1523
1524 if (show_bits)
1525 BIO_printf(sdb->out, ", security bits=%d", bits);
1526 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1527 return rv;
1528 }
1529
1530 void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1531 {
1532 static security_debug_ex sdb;
1533
1534 sdb.out = bio_err;
1535 sdb.verbose = verbose;
1536 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1537 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1538 SSL_CTX_set0_security_ex_data(ctx, &sdb);
1539 }
1540
1541 static void keylog_callback(const SSL *ssl, const char *line)
1542 {
1543 if (bio_keylog == NULL) {
1544 BIO_printf(bio_err, "Keylog callback is invoked without valid file!\n");
1545 return;
1546 }
1547
1548 /*
1549 * There might be concurrent writers to the keylog file, so we must ensure
1550 * that the given line is written at once.
1551 */
1552 BIO_printf(bio_keylog, "%s\n", line);
1553 (void)BIO_flush(bio_keylog);
1554 }
1555
1556 int set_keylog_file(SSL_CTX *ctx, const char *keylog_file)
1557 {
1558 /* Close any open files */
1559 BIO_free_all(bio_keylog);
1560 bio_keylog = NULL;
1561
1562 if (ctx == NULL || keylog_file == NULL) {
1563 /* Keylogging is disabled, OK. */
1564 return 0;
1565 }
1566
1567 /*
1568 * Append rather than write in order to allow concurrent modification.
1569 * Furthermore, this preserves existing keylog files which is useful when
1570 * the tool is run multiple times.
1571 */
1572 bio_keylog = BIO_new_file(keylog_file, "a");
1573 if (bio_keylog == NULL) {
1574 BIO_printf(bio_err, "Error writing keylog file %s\n", keylog_file);
1575 return 1;
1576 }
1577
1578 /* Write a header for seekable, empty files (this excludes pipes). */
1579 if (BIO_tell(bio_keylog) == 0) {
1580 BIO_puts(bio_keylog,
1581 "# SSL/TLS secrets log file, generated by OpenSSL\n");
1582 (void)BIO_flush(bio_keylog);
1583 }
1584 SSL_CTX_set_keylog_callback(ctx, keylog_callback);
1585 return 0;
1586 }
1587
1588 void print_ca_names(BIO *bio, SSL *s)
1589 {
1590 const char *cs = SSL_is_server(s) ? "server" : "client";
1591 const STACK_OF(X509_NAME) *sk = SSL_get0_peer_CA_list(s);
1592 int i;
1593
1594 if (sk == NULL || sk_X509_NAME_num(sk) == 0) {
1595 if (!SSL_is_server(s))
1596 BIO_printf(bio, "---\nNo %s certificate CA names sent\n", cs);
1597 return;
1598 }
1599
1600 BIO_printf(bio, "---\nAcceptable %s certificate CA names\n",cs);
1601 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
1602 X509_NAME_print_ex(bio, sk_X509_NAME_value(sk, i), 0, get_nameopt());
1603 BIO_write(bio, "\n", 1);
1604 }
1605 }
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