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1 /*
2 * Copyright 1995-2025 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 /*
11 * callback functions used by s_client, s_server, and s_time,
12 * as well as other common logic for those apps
13 */
14 #include <stdio.h>
15 #include <stdlib.h>
16 #include <string.h> /* for memcpy() and strcmp() */
17 #include "apps.h"
18 #include <openssl/core_names.h>
19 #include <openssl/params.h>
20 #include <openssl/err.h>
21 #include <openssl/rand.h>
22 #include <openssl/x509.h>
23 #include <openssl/ssl.h>
24 #include <openssl/bn.h>
25 #ifndef OPENSSL_NO_DH
26 # include <openssl/dh.h>
27 #endif
28 #include "s_apps.h"
29
30 #define COOKIE_SECRET_LENGTH 16
31
32 VERIFY_CB_ARGS verify_args = { -1, 0, X509_V_OK, 0 };
33
34 #ifndef OPENSSL_NO_SOCK
35 static unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
36 static int cookie_initialized = 0;
37 #endif
38 static BIO *bio_keylog = NULL;
39
40 static const char *lookup(int val, const STRINT_PAIR* list, const char* def)
41 {
42 for ( ; list->name; ++list)
43 if (list->retval == val)
44 return list->name;
45 return def;
46 }
47
48 int verify_callback(int ok, X509_STORE_CTX *ctx)
49 {
50 X509 *err_cert;
51 int err, depth;
52
53 err_cert = X509_STORE_CTX_get_current_cert(ctx);
54 err = X509_STORE_CTX_get_error(ctx);
55 depth = X509_STORE_CTX_get_error_depth(ctx);
56
57 if (!verify_args.quiet || !ok) {
58 BIO_printf(bio_err, "depth=%d ", depth);
59 if (err_cert != NULL) {
60 X509_NAME_print_ex(bio_err,
61 X509_get_subject_name(err_cert),
62 0, get_nameopt());
63 BIO_puts(bio_err, "\n");
64 } else {
65 BIO_puts(bio_err, "<no cert>\n");
66 }
67 }
68 if (!ok) {
69 BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
70 X509_verify_cert_error_string(err));
71 if (verify_args.depth < 0 || verify_args.depth >= depth) {
72 if (!verify_args.return_error)
73 ok = 1;
74 verify_args.error = err;
75 } else {
76 ok = 0;
77 verify_args.error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
78 }
79 }
80 switch (err) {
81 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
82 if (err_cert != NULL) {
83 BIO_puts(bio_err, "issuer= ");
84 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
85 0, get_nameopt());
86 BIO_puts(bio_err, "\n");
87 }
88 break;
89 case X509_V_ERR_CERT_NOT_YET_VALID:
90 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
91 if (err_cert != NULL) {
92 BIO_printf(bio_err, "notBefore=");
93 ASN1_TIME_print(bio_err, X509_get0_notBefore(err_cert));
94 BIO_printf(bio_err, "\n");
95 }
96 break;
97 case X509_V_ERR_CERT_HAS_EXPIRED:
98 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
99 if (err_cert != NULL) {
100 BIO_printf(bio_err, "notAfter=");
101 ASN1_TIME_print(bio_err, X509_get0_notAfter(err_cert));
102 BIO_printf(bio_err, "\n");
103 }
104 break;
105 case X509_V_ERR_NO_EXPLICIT_POLICY:
106 if (!verify_args.quiet)
107 policies_print(ctx);
108 break;
109 }
110 if (err == X509_V_OK && ok == 2 && !verify_args.quiet)
111 policies_print(ctx);
112 if (ok && !verify_args.quiet)
113 BIO_printf(bio_err, "verify return:%d\n", ok);
114 return ok;
115 }
116
117 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
118 {
119 if (cert_file != NULL) {
120 if (SSL_CTX_use_certificate_file(ctx, cert_file,
121 SSL_FILETYPE_PEM) <= 0) {
122 BIO_printf(bio_err, "unable to get certificate from '%s'\n",
123 cert_file);
124 ERR_print_errors(bio_err);
125 return 0;
126 }
127 if (key_file == NULL)
128 key_file = cert_file;
129 if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
130 BIO_printf(bio_err, "unable to get private key from '%s'\n",
131 key_file);
132 ERR_print_errors(bio_err);
133 return 0;
134 }
135
136 /*
137 * If we are using DSA, we can copy the parameters from the private
138 * key
139 */
140
141 /*
142 * Now we know that a key and cert have been set against the SSL
143 * context
144 */
145 if (!SSL_CTX_check_private_key(ctx)) {
146 BIO_printf(bio_err,
147 "Private key does not match the certificate public key\n");
148 return 0;
149 }
150 }
151 return 1;
152 }
153
154 int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
155 STACK_OF(X509) *chain, int build_chain)
156 {
157 int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
158
159 if (cert == NULL)
160 return 1;
161 if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
162 BIO_printf(bio_err, "error setting certificate\n");
163 ERR_print_errors(bio_err);
164 return 0;
165 }
166
167 if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
168 BIO_printf(bio_err, "error setting private key\n");
169 ERR_print_errors(bio_err);
170 return 0;
171 }
172
173 /*
174 * Now we know that a key and cert have been set against the SSL context
175 */
176 if (!SSL_CTX_check_private_key(ctx)) {
177 BIO_printf(bio_err,
178 "Private key does not match the certificate public key\n");
179 return 0;
180 }
181 if (chain && !SSL_CTX_set1_chain(ctx, chain)) {
182 BIO_printf(bio_err, "error setting certificate chain\n");
183 ERR_print_errors(bio_err);
184 return 0;
185 }
186 if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) {
187 BIO_printf(bio_err, "error building certificate chain\n");
188 ERR_print_errors(bio_err);
189 return 0;
190 }
191 return 1;
192 }
193
194 static STRINT_PAIR cert_type_list[] = {
195 {"RSA sign", TLS_CT_RSA_SIGN},
196 {"DSA sign", TLS_CT_DSS_SIGN},
197 {"RSA fixed DH", TLS_CT_RSA_FIXED_DH},
198 {"DSS fixed DH", TLS_CT_DSS_FIXED_DH},
199 {"ECDSA sign", TLS_CT_ECDSA_SIGN},
200 {"RSA fixed ECDH", TLS_CT_RSA_FIXED_ECDH},
201 {"ECDSA fixed ECDH", TLS_CT_ECDSA_FIXED_ECDH},
202 {"GOST01 Sign", TLS_CT_GOST01_SIGN},
203 {"GOST12 Sign", TLS_CT_GOST12_IANA_SIGN},
204 {NULL}
205 };
206
207 static void ssl_print_client_cert_types(BIO *bio, SSL *s)
208 {
209 const unsigned char *p;
210 int i;
211 int cert_type_num = SSL_get0_certificate_types(s, &p);
212
213 if (!cert_type_num)
214 return;
215 BIO_puts(bio, "Client Certificate Types: ");
216 for (i = 0; i < cert_type_num; i++) {
217 unsigned char cert_type = p[i];
218 const char *cname = lookup((int)cert_type, cert_type_list, NULL);
219
220 if (i)
221 BIO_puts(bio, ", ");
222 if (cname != NULL)
223 BIO_puts(bio, cname);
224 else
225 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
226 }
227 BIO_puts(bio, "\n");
228 }
229
230 static const char *get_sigtype(int nid)
231 {
232 switch (nid) {
233 case EVP_PKEY_RSA:
234 return "RSA";
235
236 case EVP_PKEY_RSA_PSS:
237 return "RSA-PSS";
238
239 case EVP_PKEY_DSA:
240 return "DSA";
241
242 case EVP_PKEY_EC:
243 return "ECDSA";
244
245 case NID_ED25519:
246 return "ed25519";
247
248 case NID_ED448:
249 return "ed448";
250
251 case NID_id_GostR3410_2001:
252 return "gost2001";
253
254 case NID_id_GostR3410_2012_256:
255 return "gost2012_256";
256
257 case NID_id_GostR3410_2012_512:
258 return "gost2012_512";
259
260 default:
261 /* Try to output provider-registered sig alg name */
262 return OBJ_nid2sn(nid);
263 }
264 }
265
266 static int do_print_sigalgs(BIO *out, SSL *s, int shared)
267 {
268 int i, nsig, client;
269
270 client = SSL_is_server(s) ? 0 : 1;
271 if (shared)
272 nsig = SSL_get_shared_sigalgs(s, 0, NULL, NULL, NULL, NULL, NULL);
273 else
274 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
275 if (nsig == 0)
276 return 1;
277
278 if (shared)
279 BIO_puts(out, "Shared ");
280
281 if (client)
282 BIO_puts(out, "Requested ");
283 BIO_puts(out, "Signature Algorithms: ");
284 for (i = 0; i < nsig; i++) {
285 int hash_nid, sign_nid;
286 unsigned char rhash, rsign;
287 const char *sstr = NULL;
288 if (shared)
289 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
290 &rsign, &rhash);
291 else
292 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
293 if (i)
294 BIO_puts(out, ":");
295 switch (rsign | rhash << 8) {
296 case 0x0809:
297 BIO_puts(out, "rsa_pss_pss_sha256");
298 continue;
299 case 0x080a:
300 BIO_puts(out, "rsa_pss_pss_sha384");
301 continue;
302 case 0x080b:
303 BIO_puts(out, "rsa_pss_pss_sha512");
304 continue;
305 case 0x081a:
306 BIO_puts(out, "ecdsa_brainpoolP256r1_sha256");
307 continue;
308 case 0x081b:
309 BIO_puts(out, "ecdsa_brainpoolP384r1_sha384");
310 continue;
311 case 0x081c:
312 BIO_puts(out, "ecdsa_brainpoolP512r1_sha512");
313 continue;
314 }
315 sstr = get_sigtype(sign_nid);
316 if (sstr)
317 BIO_printf(out, "%s", sstr);
318 else
319 BIO_printf(out, "0x%02X", (int)rsign);
320 if (hash_nid != NID_undef)
321 BIO_printf(out, "+%s", OBJ_nid2sn(hash_nid));
322 else if (sstr == NULL)
323 BIO_printf(out, "+0x%02X", (int)rhash);
324 }
325 BIO_puts(out, "\n");
326 return 1;
327 }
328
329 int ssl_print_sigalgs(BIO *out, SSL *s)
330 {
331 const char *name;
332 int nid;
333
334 if (!SSL_is_server(s))
335 ssl_print_client_cert_types(out, s);
336 do_print_sigalgs(out, s, 0);
337 do_print_sigalgs(out, s, 1);
338 if (SSL_get_peer_signature_nid(s, &nid) && nid != NID_undef)
339 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(nid));
340 if (SSL_get0_peer_signature_name(s, &name))
341 BIO_printf(out, "Peer signature type: %s\n", name);
342 else if (SSL_get_peer_signature_type_nid(s, &nid))
343 BIO_printf(out, "Peer signature type: %s\n", get_sigtype(nid));
344 return 1;
345 }
346
347 #ifndef OPENSSL_NO_EC
348 int ssl_print_point_formats(BIO *out, SSL *s)
349 {
350 int i, nformats;
351 const char *pformats;
352
353 nformats = SSL_get0_ec_point_formats(s, &pformats);
354 if (nformats <= 0)
355 return 1;
356 BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
357 for (i = 0; i < nformats; i++, pformats++) {
358 if (i)
359 BIO_puts(out, ":");
360 switch (*pformats) {
361 case TLSEXT_ECPOINTFORMAT_uncompressed:
362 BIO_puts(out, "uncompressed");
363 break;
364
365 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
366 BIO_puts(out, "ansiX962_compressed_prime");
367 break;
368
369 case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
370 BIO_puts(out, "ansiX962_compressed_char2");
371 break;
372
373 default:
374 BIO_printf(out, "unknown(%d)", (int)*pformats);
375 break;
376
377 }
378 }
379 BIO_puts(out, "\n");
380 return 1;
381 }
382
383 int ssl_print_groups(BIO *out, SSL *s, int noshared)
384 {
385 int i, ngroups, *groups, nid;
386
387 ngroups = SSL_get1_groups(s, NULL);
388 if (ngroups <= 0)
389 return 1;
390 groups = app_malloc(ngroups * sizeof(int), "groups to print");
391 SSL_get1_groups(s, groups);
392
393 BIO_puts(out, "Supported groups: ");
394 for (i = 0; i < ngroups; i++) {
395 if (i)
396 BIO_puts(out, ":");
397 nid = groups[i];
398 BIO_printf(out, "%s", SSL_group_to_name(s, nid));
399 }
400 OPENSSL_free(groups);
401 if (noshared) {
402 BIO_puts(out, "\n");
403 return 1;
404 }
405 BIO_puts(out, "\nShared groups: ");
406 ngroups = SSL_get_shared_group(s, -1);
407 for (i = 0; i < ngroups; i++) {
408 if (i)
409 BIO_puts(out, ":");
410 nid = SSL_get_shared_group(s, i);
411 BIO_printf(out, "%s", SSL_group_to_name(s, nid));
412 }
413 if (ngroups == 0)
414 BIO_puts(out, "NONE");
415 BIO_puts(out, "\n");
416 return 1;
417 }
418 #endif
419
420 int ssl_print_tmp_key(BIO *out, SSL *s)
421 {
422 const char *keyname;
423 EVP_PKEY *key;
424
425 if (!SSL_get_peer_tmp_key(s, &key)) {
426 if (SSL_version(s) == TLS1_3_VERSION)
427 BIO_printf(out, "Negotiated TLS1.3 group: %s\n",
428 SSL_group_to_name(s, SSL_get_negotiated_group(s)));
429 return 1;
430 }
431
432 BIO_puts(out, "Peer Temp Key: ");
433 switch (EVP_PKEY_get_id(key)) {
434 case EVP_PKEY_RSA:
435 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_get_bits(key));
436 break;
437
438 case EVP_PKEY_KEYMGMT:
439 if ((keyname = EVP_PKEY_get0_type_name(key)) == NULL)
440 keyname = "?";
441 BIO_printf(out, "%s\n", keyname);
442 break;
443
444 case EVP_PKEY_DH:
445 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_get_bits(key));
446 break;
447 #ifndef OPENSSL_NO_EC
448 case EVP_PKEY_EC:
449 {
450 char name[80];
451 size_t name_len;
452
453 if (!EVP_PKEY_get_utf8_string_param(key, OSSL_PKEY_PARAM_GROUP_NAME,
454 name, sizeof(name), &name_len))
455 strcpy(name, "?");
456 BIO_printf(out, "ECDH, %s, %d bits\n", name, EVP_PKEY_get_bits(key));
457 }
458 break;
459 #endif
460 default:
461 BIO_printf(out, "%s, %d bits\n", OBJ_nid2sn(EVP_PKEY_get_id(key)),
462 EVP_PKEY_get_bits(key));
463 }
464 EVP_PKEY_free(key);
465 return 1;
466 }
467
468 long bio_dump_callback(BIO *bio, int cmd, const char *argp, size_t len,
469 int argi, long argl, int ret, size_t *processed)
470 {
471 BIO *out;
472 BIO_MMSG_CB_ARGS *mmsgargs;
473 size_t i;
474
475 out = (BIO *)BIO_get_callback_arg(bio);
476 if (out == NULL)
477 return ret;
478
479 switch (cmd) {
480 case (BIO_CB_READ | BIO_CB_RETURN):
481 if (ret > 0 && processed != NULL) {
482 BIO_printf(out, "read from %p [%p] (%zu bytes => %zu (0x%zX))\n",
483 (void *)bio, (void *)argp, len, *processed, *processed);
484 BIO_dump(out, argp, (int)*processed);
485 } else {
486 BIO_printf(out, "read from %p [%p] (%zu bytes => %d)\n",
487 (void *)bio, (void *)argp, len, ret);
488 }
489 break;
490
491 case (BIO_CB_WRITE | BIO_CB_RETURN):
492 if (ret > 0 && processed != NULL) {
493 BIO_printf(out, "write to %p [%p] (%zu bytes => %zu (0x%zX))\n",
494 (void *)bio, (void *)argp, len, *processed, *processed);
495 BIO_dump(out, argp, (int)*processed);
496 } else {
497 BIO_printf(out, "write to %p [%p] (%zu bytes => %d)\n",
498 (void *)bio, (void *)argp, len, ret);
499 }
500 break;
501
502 case (BIO_CB_RECVMMSG | BIO_CB_RETURN):
503 mmsgargs = (BIO_MMSG_CB_ARGS *)argp;
504 if (ret > 0) {
505 for (i = 0; i < *(mmsgargs->msgs_processed); i++) {
506 BIO_MSG *msg = (BIO_MSG *)((char *)mmsgargs->msg
507 + (i * mmsgargs->stride));
508
509 BIO_printf(out, "read from %p [%p] (%zu bytes => %zu (0x%zX))\n",
510 (void *)bio, (void *)msg->data, msg->data_len,
511 msg->data_len, msg->data_len);
512 if (msg->data_len <= INT_MAX)
513 BIO_dump(out, msg->data, (int)msg->data_len);
514 }
515 } else if (mmsgargs->num_msg > 0) {
516 BIO_MSG *msg = mmsgargs->msg;
517
518 BIO_printf(out, "read from %p [%p] (%zu bytes => %d)\n",
519 (void *)bio, (void *)msg->data, msg->data_len, ret);
520 }
521 break;
522
523 case (BIO_CB_SENDMMSG | BIO_CB_RETURN):
524 mmsgargs = (BIO_MMSG_CB_ARGS *)argp;
525 if (ret > 0) {
526 for (i = 0; i < *(mmsgargs->msgs_processed); i++) {
527 BIO_MSG *msg = (BIO_MSG *)((char *)mmsgargs->msg
528 + (i * mmsgargs->stride));
529
530 BIO_printf(out, "write to %p [%p] (%zu bytes => %zu (0x%zX))\n",
531 (void *)bio, (void *)msg->data, msg->data_len,
532 msg->data_len, msg->data_len);
533 if (msg->data_len <= INT_MAX)
534 BIO_dump(out, msg->data, (int)msg->data_len);
535 }
536 } else if (mmsgargs->num_msg > 0) {
537 BIO_MSG *msg = mmsgargs->msg;
538
539 BIO_printf(out, "write to %p [%p] (%zu bytes => %d)\n",
540 (void *)bio, (void *)msg->data, msg->data_len, ret);
541 }
542 break;
543
544 default:
545 /* do nothing */
546 break;
547 }
548 return ret;
549 }
550
551 void apps_ssl_info_callback(const SSL *s, int where, int ret)
552 {
553 const char *str;
554 int w;
555
556 w = where & ~SSL_ST_MASK;
557
558 if (w & SSL_ST_CONNECT)
559 str = "SSL_connect";
560 else if (w & SSL_ST_ACCEPT)
561 str = "SSL_accept";
562 else
563 str = "undefined";
564
565 if (where & SSL_CB_LOOP) {
566 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
567 } else if (where & SSL_CB_ALERT) {
568 str = (where & SSL_CB_READ) ? "read" : "write";
569 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
570 str,
571 SSL_alert_type_string_long(ret),
572 SSL_alert_desc_string_long(ret));
573 } else if (where & SSL_CB_EXIT) {
574 if (ret == 0)
575 BIO_printf(bio_err, "%s:failed in %s\n",
576 str, SSL_state_string_long(s));
577 else if (ret < 0)
578 BIO_printf(bio_err, "%s:error in %s\n",
579 str, SSL_state_string_long(s));
580 }
581 }
582
583 static STRINT_PAIR ssl_versions[] = {
584 {"SSL 3.0", SSL3_VERSION},
585 {"TLS 1.0", TLS1_VERSION},
586 {"TLS 1.1", TLS1_1_VERSION},
587 {"TLS 1.2", TLS1_2_VERSION},
588 {"TLS 1.3", TLS1_3_VERSION},
589 {"DTLS 1.0", DTLS1_VERSION},
590 {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
591 {NULL}
592 };
593
594 static STRINT_PAIR alert_types[] = {
595 {" close_notify", 0},
596 {" end_of_early_data", 1},
597 {" unexpected_message", 10},
598 {" bad_record_mac", 20},
599 {" decryption_failed", 21},
600 {" record_overflow", 22},
601 {" decompression_failure", 30},
602 {" handshake_failure", 40},
603 {" bad_certificate", 42},
604 {" unsupported_certificate", 43},
605 {" certificate_revoked", 44},
606 {" certificate_expired", 45},
607 {" certificate_unknown", 46},
608 {" illegal_parameter", 47},
609 {" unknown_ca", 48},
610 {" access_denied", 49},
611 {" decode_error", 50},
612 {" decrypt_error", 51},
613 {" export_restriction", 60},
614 {" protocol_version", 70},
615 {" insufficient_security", 71},
616 {" internal_error", 80},
617 {" inappropriate_fallback", 86},
618 {" user_canceled", 90},
619 {" no_renegotiation", 100},
620 {" missing_extension", 109},
621 {" unsupported_extension", 110},
622 {" certificate_unobtainable", 111},
623 {" unrecognized_name", 112},
624 {" bad_certificate_status_response", 113},
625 {" bad_certificate_hash_value", 114},
626 {" unknown_psk_identity", 115},
627 {" certificate_required", 116},
628 {NULL}
629 };
630
631 static STRINT_PAIR handshakes[] = {
632 {", HelloRequest", SSL3_MT_HELLO_REQUEST},
633 {", ClientHello", SSL3_MT_CLIENT_HELLO},
634 {", ServerHello", SSL3_MT_SERVER_HELLO},
635 {", HelloVerifyRequest", DTLS1_MT_HELLO_VERIFY_REQUEST},
636 {", NewSessionTicket", SSL3_MT_NEWSESSION_TICKET},
637 {", EndOfEarlyData", SSL3_MT_END_OF_EARLY_DATA},
638 {", EncryptedExtensions", SSL3_MT_ENCRYPTED_EXTENSIONS},
639 {", Certificate", SSL3_MT_CERTIFICATE},
640 {", ServerKeyExchange", SSL3_MT_SERVER_KEY_EXCHANGE},
641 {", CertificateRequest", SSL3_MT_CERTIFICATE_REQUEST},
642 {", ServerHelloDone", SSL3_MT_SERVER_DONE},
643 {", CertificateVerify", SSL3_MT_CERTIFICATE_VERIFY},
644 {", ClientKeyExchange", SSL3_MT_CLIENT_KEY_EXCHANGE},
645 {", Finished", SSL3_MT_FINISHED},
646 {", CertificateUrl", SSL3_MT_CERTIFICATE_URL},
647 {", CertificateStatus", SSL3_MT_CERTIFICATE_STATUS},
648 {", SupplementalData", SSL3_MT_SUPPLEMENTAL_DATA},
649 {", KeyUpdate", SSL3_MT_KEY_UPDATE},
650 {", CompressedCertificate", SSL3_MT_COMPRESSED_CERTIFICATE},
651 #ifndef OPENSSL_NO_NEXTPROTONEG
652 {", NextProto", SSL3_MT_NEXT_PROTO},
653 #endif
654 {", MessageHash", SSL3_MT_MESSAGE_HASH},
655 {NULL}
656 };
657
658 void msg_cb(int write_p, int version, int content_type, const void *buf,
659 size_t len, SSL *ssl, void *arg)
660 {
661 BIO *bio = arg;
662 const char *str_write_p = write_p ? ">>>" : "<<<";
663 char tmpbuf[128];
664 const char *str_version, *str_content_type = "", *str_details1 = "", *str_details2 = "";
665 const unsigned char* bp = buf;
666
667 if (version == SSL3_VERSION ||
668 version == TLS1_VERSION ||
669 version == TLS1_1_VERSION ||
670 version == TLS1_2_VERSION ||
671 version == TLS1_3_VERSION ||
672 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
673 str_version = lookup(version, ssl_versions, "???");
674 switch (content_type) {
675 case SSL3_RT_CHANGE_CIPHER_SPEC:
676 /* type 20 */
677 str_content_type = ", ChangeCipherSpec";
678 break;
679 case SSL3_RT_ALERT:
680 /* type 21 */
681 str_content_type = ", Alert";
682 str_details1 = ", ???";
683 if (len == 2) {
684 switch (bp[0]) {
685 case 1:
686 str_details1 = ", warning";
687 break;
688 case 2:
689 str_details1 = ", fatal";
690 break;
691 }
692 str_details2 = lookup((int)bp[1], alert_types, " ???");
693 }
694 break;
695 case SSL3_RT_HANDSHAKE:
696 /* type 22 */
697 str_content_type = ", Handshake";
698 str_details1 = "???";
699 if (len > 0)
700 str_details1 = lookup((int)bp[0], handshakes, "???");
701 break;
702 case SSL3_RT_APPLICATION_DATA:
703 /* type 23 */
704 str_content_type = ", ApplicationData";
705 break;
706 case SSL3_RT_HEADER:
707 /* type 256 */
708 str_content_type = ", RecordHeader";
709 break;
710 case SSL3_RT_INNER_CONTENT_TYPE:
711 /* type 257 */
712 str_content_type = ", InnerContent";
713 break;
714 default:
715 BIO_snprintf(tmpbuf, sizeof(tmpbuf)-1, ", Unknown (content_type=%d)", content_type);
716 str_content_type = tmpbuf;
717 }
718 } else {
719 BIO_snprintf(tmpbuf, sizeof(tmpbuf)-1, "Not TLS data or unknown version (version=%d, content_type=%d)", version, content_type);
720 str_version = tmpbuf;
721 }
722
723 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
724 str_content_type, (unsigned long)len, str_details1,
725 str_details2);
726
727 if (len > 0) {
728 size_t num, i;
729
730 BIO_printf(bio, " ");
731 num = len;
732 for (i = 0; i < num; i++) {
733 if (i % 16 == 0 && i > 0)
734 BIO_printf(bio, "\n ");
735 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
736 }
737 if (i < len)
738 BIO_printf(bio, " ...");
739 BIO_printf(bio, "\n");
740 }
741 (void)BIO_flush(bio);
742 }
743
744 static const STRINT_PAIR tlsext_types[] = {
745 {"server name", TLSEXT_TYPE_server_name},
746 {"max fragment length", TLSEXT_TYPE_max_fragment_length},
747 {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
748 {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
749 {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
750 {"status request", TLSEXT_TYPE_status_request},
751 {"user mapping", TLSEXT_TYPE_user_mapping},
752 {"client authz", TLSEXT_TYPE_client_authz},
753 {"server authz", TLSEXT_TYPE_server_authz},
754 {"cert type", TLSEXT_TYPE_cert_type},
755 {"supported_groups", TLSEXT_TYPE_supported_groups},
756 {"EC point formats", TLSEXT_TYPE_ec_point_formats},
757 {"SRP", TLSEXT_TYPE_srp},
758 {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
759 {"use SRTP", TLSEXT_TYPE_use_srtp},
760 {"session ticket", TLSEXT_TYPE_session_ticket},
761 {"renegotiation info", TLSEXT_TYPE_renegotiate},
762 {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp},
763 {"client cert type", TLSEXT_TYPE_client_cert_type},
764 {"server cert type", TLSEXT_TYPE_server_cert_type},
765 {"TLS padding", TLSEXT_TYPE_padding},
766 #ifdef TLSEXT_TYPE_next_proto_neg
767 {"next protocol", TLSEXT_TYPE_next_proto_neg},
768 #endif
769 #ifdef TLSEXT_TYPE_encrypt_then_mac
770 {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
771 #endif
772 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
773 {"application layer protocol negotiation",
774 TLSEXT_TYPE_application_layer_protocol_negotiation},
775 #endif
776 #ifdef TLSEXT_TYPE_extended_master_secret
777 {"extended master secret", TLSEXT_TYPE_extended_master_secret},
778 #endif
779 {"compress certificate", TLSEXT_TYPE_compress_certificate},
780 {"key share", TLSEXT_TYPE_key_share},
781 {"supported versions", TLSEXT_TYPE_supported_versions},
782 {"psk", TLSEXT_TYPE_psk},
783 {"psk kex modes", TLSEXT_TYPE_psk_kex_modes},
784 {"certificate authorities", TLSEXT_TYPE_certificate_authorities},
785 {"post handshake auth", TLSEXT_TYPE_post_handshake_auth},
786 {"early_data", TLSEXT_TYPE_early_data},
787 {NULL}
788 };
789
790 /* from rfc8446 4.2.3. + gost (https://tools.ietf.org/id/draft-smyshlyaev-tls12-gost-suites-04.html) */
791 static STRINT_PAIR signature_tls13_scheme_list[] = {
792 {"rsa_pkcs1_sha1", 0x0201 /* TLSEXT_SIGALG_rsa_pkcs1_sha1 */},
793 {"ecdsa_sha1", 0x0203 /* TLSEXT_SIGALG_ecdsa_sha1 */},
794 /* {"rsa_pkcs1_sha224", 0x0301 TLSEXT_SIGALG_rsa_pkcs1_sha224}, not in rfc8446 */
795 /* {"ecdsa_sha224", 0x0303 TLSEXT_SIGALG_ecdsa_sha224} not in rfc8446 */
796 {"rsa_pkcs1_sha256", 0x0401 /* TLSEXT_SIGALG_rsa_pkcs1_sha256 */},
797 {"ecdsa_secp256r1_sha256", 0x0403 /* TLSEXT_SIGALG_ecdsa_secp256r1_sha256 */},
798 {"rsa_pkcs1_sha384", 0x0501 /* TLSEXT_SIGALG_rsa_pkcs1_sha384 */},
799 {"ecdsa_secp384r1_sha384", 0x0503 /* TLSEXT_SIGALG_ecdsa_secp384r1_sha384 */},
800 {"rsa_pkcs1_sha512", 0x0601 /* TLSEXT_SIGALG_rsa_pkcs1_sha512 */},
801 {"ecdsa_secp521r1_sha512", 0x0603 /* TLSEXT_SIGALG_ecdsa_secp521r1_sha512 */},
802 {"rsa_pss_rsae_sha256", 0x0804 /* TLSEXT_SIGALG_rsa_pss_rsae_sha256 */},
803 {"rsa_pss_rsae_sha384", 0x0805 /* TLSEXT_SIGALG_rsa_pss_rsae_sha384 */},
804 {"rsa_pss_rsae_sha512", 0x0806 /* TLSEXT_SIGALG_rsa_pss_rsae_sha512 */},
805 {"ed25519", 0x0807 /* TLSEXT_SIGALG_ed25519 */},
806 {"ed448", 0x0808 /* TLSEXT_SIGALG_ed448 */},
807 {"rsa_pss_pss_sha256", 0x0809 /* TLSEXT_SIGALG_rsa_pss_pss_sha256 */},
808 {"rsa_pss_pss_sha384", 0x080a /* TLSEXT_SIGALG_rsa_pss_pss_sha384 */},
809 {"rsa_pss_pss_sha512", 0x080b /* TLSEXT_SIGALG_rsa_pss_pss_sha512 */},
810 {"gostr34102001", 0xeded /* TLSEXT_SIGALG_gostr34102001_gostr3411 */},
811 {"gostr34102012_256", 0xeeee /* TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 */},
812 {"gostr34102012_512", 0xefef /* TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 */},
813 {NULL}
814 };
815
816 /* from rfc5246 7.4.1.4.1. */
817 static STRINT_PAIR signature_tls12_alg_list[] = {
818 {"anonymous", TLSEXT_signature_anonymous /* 0 */},
819 {"RSA", TLSEXT_signature_rsa /* 1 */},
820 {"DSA", TLSEXT_signature_dsa /* 2 */},
821 {"ECDSA", TLSEXT_signature_ecdsa /* 3 */},
822 {NULL}
823 };
824
825 /* from rfc5246 7.4.1.4.1. */
826 static STRINT_PAIR signature_tls12_hash_list[] = {
827 {"none", TLSEXT_hash_none /* 0 */},
828 {"MD5", TLSEXT_hash_md5 /* 1 */},
829 {"SHA1", TLSEXT_hash_sha1 /* 2 */},
830 {"SHA224", TLSEXT_hash_sha224 /* 3 */},
831 {"SHA256", TLSEXT_hash_sha256 /* 4 */},
832 {"SHA384", TLSEXT_hash_sha384 /* 5 */},
833 {"SHA512", TLSEXT_hash_sha512 /* 6 */},
834 {NULL}
835 };
836
837 void tlsext_cb(SSL *s, int client_server, int type,
838 const unsigned char *data, int len, void *arg)
839 {
840 BIO *bio = arg;
841 const char *extname = lookup(type, tlsext_types, "unknown");
842
843 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
844 client_server ? "server" : "client", extname, type, len);
845 BIO_dump(bio, (const char *)data, len);
846 (void)BIO_flush(bio);
847 }
848
849 #ifndef OPENSSL_NO_SOCK
850 int generate_stateless_cookie_callback(SSL *ssl, unsigned char *cookie,
851 size_t *cookie_len)
852 {
853 unsigned char *buffer = NULL;
854 size_t length = 0;
855 unsigned short port;
856 BIO_ADDR *lpeer = NULL, *peer = NULL;
857 int res = 0;
858
859 /* Initialize a random secret */
860 if (!cookie_initialized) {
861 if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
862 BIO_printf(bio_err, "error setting random cookie secret\n");
863 return 0;
864 }
865 cookie_initialized = 1;
866 }
867
868 if (SSL_is_dtls(ssl)) {
869 lpeer = peer = BIO_ADDR_new();
870 if (peer == NULL) {
871 BIO_printf(bio_err, "memory full\n");
872 return 0;
873 }
874
875 /* Read peer information */
876 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer);
877 } else {
878 peer = ourpeer;
879 }
880
881 /* Create buffer with peer's address and port */
882 if (!BIO_ADDR_rawaddress(peer, NULL, &length)) {
883 BIO_printf(bio_err, "Failed getting peer address\n");
884 BIO_ADDR_free(lpeer);
885 return 0;
886 }
887 OPENSSL_assert(length != 0);
888 port = BIO_ADDR_rawport(peer);
889 length += sizeof(port);
890 buffer = app_malloc(length, "cookie generate buffer");
891
892 memcpy(buffer, &port, sizeof(port));
893 BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL);
894
895 if (EVP_Q_mac(NULL, "HMAC", NULL, "SHA1", NULL,
896 cookie_secret, COOKIE_SECRET_LENGTH, buffer, length,
897 cookie, DTLS1_COOKIE_LENGTH, cookie_len) == NULL) {
898 BIO_printf(bio_err,
899 "Error calculating HMAC-SHA1 of buffer with secret\n");
900 goto end;
901 }
902 res = 1;
903 end:
904 OPENSSL_free(buffer);
905 BIO_ADDR_free(lpeer);
906
907 return res;
908 }
909
910 int verify_stateless_cookie_callback(SSL *ssl, const unsigned char *cookie,
911 size_t cookie_len)
912 {
913 unsigned char result[EVP_MAX_MD_SIZE];
914 size_t resultlength;
915
916 /* Note: we check cookie_initialized because if it's not,
917 * it cannot be valid */
918 if (cookie_initialized
919 && generate_stateless_cookie_callback(ssl, result, &resultlength)
920 && cookie_len == resultlength
921 && memcmp(result, cookie, resultlength) == 0)
922 return 1;
923
924 return 0;
925 }
926
927 int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
928 unsigned int *cookie_len)
929 {
930 size_t temp = 0;
931 int res = generate_stateless_cookie_callback(ssl, cookie, &temp);
932
933 if (res != 0)
934 *cookie_len = (unsigned int)temp;
935 return res;
936 }
937
938 int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
939 unsigned int cookie_len)
940 {
941 return verify_stateless_cookie_callback(ssl, cookie, cookie_len);
942 }
943
944 #endif
945
946 /*
947 * Example of extended certificate handling. Where the standard support of
948 * one certificate per algorithm is not sufficient an application can decide
949 * which certificate(s) to use at runtime based on whatever criteria it deems
950 * appropriate.
951 */
952
953 /* Linked list of certificates, keys and chains */
954 struct ssl_excert_st {
955 int certform;
956 const char *certfile;
957 int keyform;
958 const char *keyfile;
959 const char *chainfile;
960 X509 *cert;
961 EVP_PKEY *key;
962 STACK_OF(X509) *chain;
963 int build_chain;
964 struct ssl_excert_st *next, *prev;
965 };
966
967 static STRINT_PAIR chain_flags[] = {
968 {"Overall Validity", CERT_PKEY_VALID},
969 {"Sign with EE key", CERT_PKEY_SIGN},
970 {"EE signature", CERT_PKEY_EE_SIGNATURE},
971 {"CA signature", CERT_PKEY_CA_SIGNATURE},
972 {"EE key parameters", CERT_PKEY_EE_PARAM},
973 {"CA key parameters", CERT_PKEY_CA_PARAM},
974 {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
975 {"Issuer Name", CERT_PKEY_ISSUER_NAME},
976 {"Certificate Type", CERT_PKEY_CERT_TYPE},
977 {NULL}
978 };
979
980 static void print_chain_flags(SSL *s, int flags)
981 {
982 STRINT_PAIR *pp;
983
984 for (pp = chain_flags; pp->name; ++pp)
985 BIO_printf(bio_err, "\t%s: %s\n",
986 pp->name,
987 (flags & pp->retval) ? "OK" : "NOT OK");
988 BIO_printf(bio_err, "\tSuite B: ");
989 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
990 BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
991 else
992 BIO_printf(bio_err, "not tested\n");
993 }
994
995 /*
996 * Very basic selection callback: just use any certificate chain reported as
997 * valid. More sophisticated could prioritise according to local policy.
998 */
999 static int set_cert_cb(SSL *ssl, void *arg)
1000 {
1001 int i, rv;
1002 SSL_EXCERT *exc = arg;
1003 #ifdef CERT_CB_TEST_RETRY
1004 static int retry_cnt;
1005
1006 if (retry_cnt < 5) {
1007 retry_cnt++;
1008 BIO_printf(bio_err,
1009 "Certificate callback retry test: count %d\n",
1010 retry_cnt);
1011 return -1;
1012 }
1013 #endif
1014 SSL_certs_clear(ssl);
1015
1016 if (exc == NULL)
1017 return 1;
1018
1019 /*
1020 * Go to end of list and traverse backwards since we prepend newer
1021 * entries this retains the original order.
1022 */
1023 while (exc->next != NULL)
1024 exc = exc->next;
1025
1026 i = 0;
1027
1028 while (exc != NULL) {
1029 i++;
1030 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
1031 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
1032 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
1033 get_nameopt());
1034 BIO_puts(bio_err, "\n");
1035 print_chain_flags(ssl, rv);
1036 if (rv & CERT_PKEY_VALID) {
1037 if (!SSL_use_certificate(ssl, exc->cert)
1038 || !SSL_use_PrivateKey(ssl, exc->key)) {
1039 return 0;
1040 }
1041 /*
1042 * NB: we wouldn't normally do this as it is not efficient
1043 * building chains on each connection better to cache the chain
1044 * in advance.
1045 */
1046 if (exc->build_chain) {
1047 if (!SSL_build_cert_chain(ssl, 0))
1048 return 0;
1049 } else if (exc->chain != NULL) {
1050 if (!SSL_set1_chain(ssl, exc->chain))
1051 return 0;
1052 }
1053 }
1054 exc = exc->prev;
1055 }
1056 return 1;
1057 }
1058
1059 void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
1060 {
1061 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
1062 }
1063
1064 static int ssl_excert_prepend(SSL_EXCERT **pexc)
1065 {
1066 SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
1067
1068 memset(exc, 0, sizeof(*exc));
1069
1070 exc->next = *pexc;
1071 *pexc = exc;
1072
1073 if (exc->next) {
1074 exc->certform = exc->next->certform;
1075 exc->keyform = exc->next->keyform;
1076 exc->next->prev = exc;
1077 } else {
1078 exc->certform = FORMAT_PEM;
1079 exc->keyform = FORMAT_PEM;
1080 }
1081 return 1;
1082
1083 }
1084
1085 void ssl_excert_free(SSL_EXCERT *exc)
1086 {
1087 SSL_EXCERT *curr;
1088
1089 if (exc == NULL)
1090 return;
1091 while (exc) {
1092 X509_free(exc->cert);
1093 EVP_PKEY_free(exc->key);
1094 OSSL_STACK_OF_X509_free(exc->chain);
1095 curr = exc;
1096 exc = exc->next;
1097 OPENSSL_free(curr);
1098 }
1099 }
1100
1101 int load_excert(SSL_EXCERT **pexc)
1102 {
1103 SSL_EXCERT *exc = *pexc;
1104
1105 if (exc == NULL)
1106 return 1;
1107 /* If nothing in list, free and set to NULL */
1108 if (exc->certfile == NULL && exc->next == NULL) {
1109 ssl_excert_free(exc);
1110 *pexc = NULL;
1111 return 1;
1112 }
1113 for (; exc; exc = exc->next) {
1114 if (exc->certfile == NULL) {
1115 BIO_printf(bio_err, "Missing filename\n");
1116 return 0;
1117 }
1118 exc->cert = load_cert(exc->certfile, exc->certform,
1119 "Server Certificate");
1120 if (exc->cert == NULL)
1121 return 0;
1122 if (exc->keyfile != NULL) {
1123 exc->key = load_key(exc->keyfile, exc->keyform,
1124 0, NULL, NULL, "server key");
1125 } else {
1126 exc->key = load_key(exc->certfile, exc->certform,
1127 0, NULL, NULL, "server key");
1128 }
1129 if (exc->key == NULL)
1130 return 0;
1131 if (exc->chainfile != NULL) {
1132 if (!load_certs(exc->chainfile, 0, &exc->chain, NULL, "server chain"))
1133 return 0;
1134 }
1135 }
1136 return 1;
1137 }
1138
1139 enum range { OPT_X_ENUM };
1140
1141 int args_excert(int opt, SSL_EXCERT **pexc)
1142 {
1143 SSL_EXCERT *exc = *pexc;
1144
1145 assert(opt > OPT_X__FIRST);
1146 assert(opt < OPT_X__LAST);
1147
1148 if (exc == NULL) {
1149 if (!ssl_excert_prepend(&exc)) {
1150 BIO_printf(bio_err, " %s: Error initialising xcert\n",
1151 opt_getprog());
1152 goto err;
1153 }
1154 *pexc = exc;
1155 }
1156
1157 switch ((enum range)opt) {
1158 case OPT_X__FIRST:
1159 case OPT_X__LAST:
1160 return 0;
1161 case OPT_X_CERT:
1162 if (exc->certfile != NULL && !ssl_excert_prepend(&exc)) {
1163 BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
1164 goto err;
1165 }
1166 *pexc = exc;
1167 exc->certfile = opt_arg();
1168 break;
1169 case OPT_X_KEY:
1170 if (exc->keyfile != NULL) {
1171 BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
1172 goto err;
1173 }
1174 exc->keyfile = opt_arg();
1175 break;
1176 case OPT_X_CHAIN:
1177 if (exc->chainfile != NULL) {
1178 BIO_printf(bio_err, "%s: Chain already specified\n",
1179 opt_getprog());
1180 goto err;
1181 }
1182 exc->chainfile = opt_arg();
1183 break;
1184 case OPT_X_CHAIN_BUILD:
1185 exc->build_chain = 1;
1186 break;
1187 case OPT_X_CERTFORM:
1188 if (!opt_format(opt_arg(), OPT_FMT_ANY, &exc->certform))
1189 return 0;
1190 break;
1191 case OPT_X_KEYFORM:
1192 if (!opt_format(opt_arg(), OPT_FMT_ANY, &exc->keyform))
1193 return 0;
1194 break;
1195 }
1196 return 1;
1197
1198 err:
1199 ERR_print_errors(bio_err);
1200 ssl_excert_free(exc);
1201 *pexc = NULL;
1202 return 0;
1203 }
1204
1205 static void print_raw_cipherlist(SSL *s)
1206 {
1207 const unsigned char *rlist;
1208 static const unsigned char scsv_id[] = { 0, 0xFF };
1209 size_t i, rlistlen, num;
1210
1211 if (!SSL_is_server(s))
1212 return;
1213 num = SSL_get0_raw_cipherlist(s, NULL);
1214 OPENSSL_assert(num == 2);
1215 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
1216 BIO_puts(bio_err, "Client cipher list: ");
1217 for (i = 0; i < rlistlen; i += num, rlist += num) {
1218 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
1219 if (i)
1220 BIO_puts(bio_err, ":");
1221 if (c != NULL) {
1222 BIO_puts(bio_err, SSL_CIPHER_get_name(c));
1223 } else if (memcmp(rlist, scsv_id, num) == 0) {
1224 BIO_puts(bio_err, "SCSV");
1225 } else {
1226 size_t j;
1227 BIO_puts(bio_err, "0x");
1228 for (j = 0; j < num; j++)
1229 BIO_printf(bio_err, "%02X", rlist[j]);
1230 }
1231 }
1232 BIO_puts(bio_err, "\n");
1233 }
1234
1235 /*
1236 * Hex encoder for TLSA RRdata, not ':' delimited.
1237 */
1238 static char *hexencode(const unsigned char *data, size_t len)
1239 {
1240 static const char *hex = "0123456789abcdef";
1241 char *out;
1242 char *cp;
1243 size_t outlen = 2 * len + 1;
1244 int ilen = (int) outlen;
1245
1246 if (outlen < len || ilen < 0 || outlen != (size_t)ilen) {
1247 BIO_printf(bio_err, "%s: %zu-byte buffer too large to hexencode\n",
1248 opt_getprog(), len);
1249 exit(1);
1250 }
1251 cp = out = app_malloc(ilen, "TLSA hex data buffer");
1252
1253 while (len-- > 0) {
1254 *cp++ = hex[(*data >> 4) & 0x0f];
1255 *cp++ = hex[*data++ & 0x0f];
1256 }
1257 *cp = '\0';
1258 return out;
1259 }
1260
1261 void print_verify_detail(SSL *s, BIO *bio)
1262 {
1263 int mdpth;
1264 EVP_PKEY *mspki = NULL;
1265 long verify_err = SSL_get_verify_result(s);
1266
1267 if (verify_err == X509_V_OK) {
1268 const char *peername = SSL_get0_peername(s);
1269
1270 BIO_printf(bio, "Verification: OK\n");
1271 if (peername != NULL)
1272 BIO_printf(bio, "Verified peername: %s\n", peername);
1273 } else {
1274 const char *reason = X509_verify_cert_error_string(verify_err);
1275
1276 BIO_printf(bio, "Verification error: %s\n", reason);
1277 }
1278
1279 if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) {
1280 uint8_t usage, selector, mtype;
1281 const unsigned char *data = NULL;
1282 size_t dlen = 0;
1283 char *hexdata;
1284
1285 mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen);
1286
1287 /*
1288 * The TLSA data field can be quite long when it is a certificate,
1289 * public key or even a SHA2-512 digest. Because the initial octets of
1290 * ASN.1 certificates and public keys contain mostly boilerplate OIDs
1291 * and lengths, we show the last 12 bytes of the data instead, as these
1292 * are more likely to distinguish distinct TLSA records.
1293 */
1294 #define TLSA_TAIL_SIZE 12
1295 if (dlen > TLSA_TAIL_SIZE)
1296 hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE);
1297 else
1298 hexdata = hexencode(data, dlen);
1299 BIO_printf(bio, "DANE TLSA %d %d %d %s%s ",
1300 usage, selector, mtype,
1301 (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata);
1302 if (SSL_get0_peer_rpk(s) == NULL)
1303 BIO_printf(bio, "%s certificate at depth %d\n",
1304 (mspki != NULL) ? "signed the peer" :
1305 mdpth ? "matched the TA" : "matched the EE", mdpth);
1306 else
1307 BIO_printf(bio, "matched the peer raw public key\n");
1308 OPENSSL_free(hexdata);
1309 }
1310 }
1311
1312 void print_ssl_summary(SSL *s)
1313 {
1314 const char *sigalg;
1315 const SSL_CIPHER *c;
1316 X509 *peer = SSL_get0_peer_certificate(s);
1317 EVP_PKEY *peer_rpk = SSL_get0_peer_rpk(s);
1318 int nid;
1319
1320 BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
1321 print_raw_cipherlist(s);
1322 c = SSL_get_current_cipher(s);
1323 BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1324 do_print_sigalgs(bio_err, s, 0);
1325 if (peer != NULL) {
1326 BIO_puts(bio_err, "Peer certificate: ");
1327 X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1328 0, get_nameopt());
1329 BIO_puts(bio_err, "\n");
1330 if (SSL_get_peer_signature_nid(s, &nid))
1331 BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1332 if (SSL_get0_peer_signature_name(s, &sigalg))
1333 BIO_printf(bio_err, "Signature type: %s\n", sigalg);
1334 print_verify_detail(s, bio_err);
1335 } else if (peer_rpk != NULL) {
1336 BIO_printf(bio_err, "Peer used raw public key\n");
1337 if (SSL_get0_peer_signature_name(s, &sigalg))
1338 BIO_printf(bio_err, "Signature type: %s\n", sigalg);
1339 print_verify_detail(s, bio_err);
1340 } else {
1341 BIO_puts(bio_err, "No peer certificate or raw public key\n");
1342 }
1343 #ifndef OPENSSL_NO_EC
1344 ssl_print_point_formats(bio_err, s);
1345 if (SSL_is_server(s))
1346 ssl_print_groups(bio_err, s, 1);
1347 #endif
1348 ssl_print_tmp_key(bio_err, s);
1349 }
1350
1351 int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
1352 SSL_CTX *ctx)
1353 {
1354 int i;
1355
1356 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1357 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1358 const char *flag = sk_OPENSSL_STRING_value(str, i);
1359 const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
1360
1361 if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
1362 BIO_printf(bio_err, "Call to SSL_CONF_cmd(%s, %s) failed\n",
1363 flag, arg == NULL ? "<NULL>" : arg);
1364 ERR_print_errors(bio_err);
1365 return 0;
1366 }
1367 }
1368 if (!SSL_CONF_CTX_finish(cctx)) {
1369 BIO_puts(bio_err, "Error finishing context\n");
1370 ERR_print_errors(bio_err);
1371 return 0;
1372 }
1373 return 1;
1374 }
1375
1376 static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1377 {
1378 X509_CRL *crl;
1379 int i, ret = 1;
1380
1381 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1382 crl = sk_X509_CRL_value(crls, i);
1383 if (!X509_STORE_add_crl(st, crl))
1384 ret = 0;
1385 }
1386 return ret;
1387 }
1388
1389 int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1390 {
1391 X509_STORE *st;
1392
1393 st = SSL_CTX_get_cert_store(ctx);
1394 add_crls_store(st, crls);
1395 if (crl_download)
1396 store_setup_crl_download(st);
1397 return 1;
1398 }
1399
1400 int ssl_load_stores(SSL_CTX *ctx,
1401 const char *vfyCApath, const char *vfyCAfile,
1402 const char *vfyCAstore,
1403 const char *chCApath, const char *chCAfile,
1404 const char *chCAstore,
1405 STACK_OF(X509_CRL) *crls, int crl_download)
1406 {
1407 X509_STORE *vfy = NULL, *ch = NULL;
1408 int rv = 0;
1409
1410 if (vfyCApath != NULL || vfyCAfile != NULL || vfyCAstore != NULL) {
1411 vfy = X509_STORE_new();
1412 if (vfy == NULL)
1413 goto err;
1414 if (vfyCAfile != NULL && !X509_STORE_load_file(vfy, vfyCAfile))
1415 goto err;
1416 if (vfyCApath != NULL && !X509_STORE_load_path(vfy, vfyCApath))
1417 goto err;
1418 if (vfyCAstore != NULL && !X509_STORE_load_store(vfy, vfyCAstore))
1419 goto err;
1420 add_crls_store(vfy, crls);
1421 if (SSL_CTX_set1_verify_cert_store(ctx, vfy) == 0)
1422 goto err;
1423 if (crl_download)
1424 store_setup_crl_download(vfy);
1425 }
1426 if (chCApath != NULL || chCAfile != NULL || chCAstore != NULL) {
1427 ch = X509_STORE_new();
1428 if (ch == NULL)
1429 goto err;
1430 if (chCAfile != NULL && !X509_STORE_load_file(ch, chCAfile))
1431 goto err;
1432 if (chCApath != NULL && !X509_STORE_load_path(ch, chCApath))
1433 goto err;
1434 if (chCAstore != NULL && !X509_STORE_load_store(ch, chCAstore))
1435 goto err;
1436 if (SSL_CTX_set1_chain_cert_store(ctx, ch) == 0)
1437 goto err;
1438 }
1439 rv = 1;
1440 err:
1441 X509_STORE_free(vfy);
1442 X509_STORE_free(ch);
1443 return rv;
1444 }
1445
1446 /* Verbose print out of security callback */
1447
1448 typedef struct {
1449 BIO *out;
1450 int verbose;
1451 int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1452 void *other, void *ex);
1453 } security_debug_ex;
1454
1455 static STRINT_PAIR callback_types[] = {
1456 {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
1457 {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
1458 {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
1459 #ifndef OPENSSL_NO_DH
1460 {"Temp DH key bits", SSL_SECOP_TMP_DH},
1461 #endif
1462 {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
1463 {"Shared Curve", SSL_SECOP_CURVE_SHARED},
1464 {"Check Curve", SSL_SECOP_CURVE_CHECK},
1465 {"Supported Signature Algorithm", SSL_SECOP_SIGALG_SUPPORTED},
1466 {"Shared Signature Algorithm", SSL_SECOP_SIGALG_SHARED},
1467 {"Check Signature Algorithm", SSL_SECOP_SIGALG_CHECK},
1468 {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
1469 {"Certificate chain EE key", SSL_SECOP_EE_KEY},
1470 {"Certificate chain CA key", SSL_SECOP_CA_KEY},
1471 {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
1472 {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
1473 {"Certificate chain CA digest", SSL_SECOP_CA_MD},
1474 {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
1475 {"SSL compression", SSL_SECOP_COMPRESSION},
1476 {"Session ticket", SSL_SECOP_TICKET},
1477 {NULL}
1478 };
1479
1480 static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
1481 int op, int bits, int nid,
1482 void *other, void *ex)
1483 {
1484 security_debug_ex *sdb = ex;
1485 int rv, show_bits = 1, cert_md = 0;
1486 const char *nm;
1487 int show_nm;
1488
1489 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1490 if (rv == 1 && sdb->verbose < 2)
1491 return 1;
1492 BIO_puts(sdb->out, "Security callback: ");
1493
1494 nm = lookup(op, callback_types, NULL);
1495 show_nm = nm != NULL;
1496 switch (op) {
1497 case SSL_SECOP_TICKET:
1498 case SSL_SECOP_COMPRESSION:
1499 show_bits = 0;
1500 show_nm = 0;
1501 break;
1502 case SSL_SECOP_VERSION:
1503 BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1504 show_bits = 0;
1505 show_nm = 0;
1506 break;
1507 case SSL_SECOP_CA_MD:
1508 case SSL_SECOP_PEER_CA_MD:
1509 cert_md = 1;
1510 break;
1511 case SSL_SECOP_SIGALG_SUPPORTED:
1512 case SSL_SECOP_SIGALG_SHARED:
1513 case SSL_SECOP_SIGALG_CHECK:
1514 case SSL_SECOP_SIGALG_MASK:
1515 show_nm = 0;
1516 break;
1517 }
1518 if (show_nm)
1519 BIO_printf(sdb->out, "%s=", nm);
1520
1521 switch (op & SSL_SECOP_OTHER_TYPE) {
1522
1523 case SSL_SECOP_OTHER_CIPHER:
1524 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1525 break;
1526
1527 #ifndef OPENSSL_NO_EC
1528 case SSL_SECOP_OTHER_CURVE:
1529 {
1530 const char *cname;
1531 cname = EC_curve_nid2nist(nid);
1532 if (cname == NULL)
1533 cname = OBJ_nid2sn(nid);
1534 BIO_puts(sdb->out, cname);
1535 }
1536 break;
1537 #endif
1538 case SSL_SECOP_OTHER_CERT:
1539 {
1540 if (cert_md) {
1541 int sig_nid = X509_get_signature_nid(other);
1542
1543 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1544 } else {
1545 EVP_PKEY *pkey = X509_get0_pubkey(other);
1546
1547 if (pkey == NULL) {
1548 BIO_printf(sdb->out, "Public key missing");
1549 } else {
1550 const char *algname = "";
1551
1552 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1553 &algname, EVP_PKEY_get0_asn1(pkey));
1554 BIO_printf(sdb->out, "%s, bits=%d",
1555 algname, EVP_PKEY_get_bits(pkey));
1556 }
1557 }
1558 break;
1559 }
1560 case SSL_SECOP_OTHER_SIGALG:
1561 {
1562 const unsigned char *salg = other;
1563 const char *sname = NULL;
1564 int raw_sig_code = (salg[0] << 8) + salg[1]; /* always big endian (msb, lsb) */
1565 /* raw_sig_code: signature_scheme from tls1.3, or signature_and_hash from tls1.2 */
1566
1567 if (nm != NULL)
1568 BIO_printf(sdb->out, "%s", nm);
1569 else
1570 BIO_printf(sdb->out, "s_cb.c:security_callback_debug op=0x%x", op);
1571
1572 sname = lookup(raw_sig_code, signature_tls13_scheme_list, NULL);
1573 if (sname != NULL) {
1574 BIO_printf(sdb->out, " scheme=%s", sname);
1575 } else {
1576 int alg_code = salg[1];
1577 int hash_code = salg[0];
1578 const char *alg_str = lookup(alg_code, signature_tls12_alg_list, NULL);
1579 const char *hash_str = lookup(hash_code, signature_tls12_hash_list, NULL);
1580
1581 if (alg_str != NULL && hash_str != NULL)
1582 BIO_printf(sdb->out, " digest=%s, algorithm=%s", hash_str, alg_str);
1583 else
1584 BIO_printf(sdb->out, " scheme=unknown(0x%04x)", raw_sig_code);
1585 }
1586 }
1587
1588 }
1589
1590 if (show_bits)
1591 BIO_printf(sdb->out, ", security bits=%d", bits);
1592 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1593 return rv;
1594 }
1595
1596 void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1597 {
1598 static security_debug_ex sdb;
1599
1600 sdb.out = bio_err;
1601 sdb.verbose = verbose;
1602 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1603 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1604 SSL_CTX_set0_security_ex_data(ctx, &sdb);
1605 }
1606
1607 static void keylog_callback(const SSL *ssl, const char *line)
1608 {
1609 if (bio_keylog == NULL) {
1610 BIO_printf(bio_err, "Keylog callback is invoked without valid file!\n");
1611 return;
1612 }
1613
1614 /*
1615 * There might be concurrent writers to the keylog file, so we must ensure
1616 * that the given line is written at once.
1617 */
1618 BIO_printf(bio_keylog, "%s\n", line);
1619 (void)BIO_flush(bio_keylog);
1620 }
1621
1622 int set_keylog_file(SSL_CTX *ctx, const char *keylog_file)
1623 {
1624 /* Close any open files */
1625 BIO_free_all(bio_keylog);
1626 bio_keylog = NULL;
1627
1628 if (ctx == NULL || keylog_file == NULL) {
1629 /* Keylogging is disabled, OK. */
1630 return 0;
1631 }
1632
1633 /*
1634 * Append rather than write in order to allow concurrent modification.
1635 * Furthermore, this preserves existing keylog files which is useful when
1636 * the tool is run multiple times.
1637 */
1638 bio_keylog = BIO_new_file(keylog_file, "a");
1639 if (bio_keylog == NULL) {
1640 BIO_printf(bio_err, "Error writing keylog file %s\n", keylog_file);
1641 return 1;
1642 }
1643
1644 /* Write a header for seekable, empty files (this excludes pipes). */
1645 if (BIO_tell(bio_keylog) == 0) {
1646 BIO_puts(bio_keylog,
1647 "# SSL/TLS secrets log file, generated by OpenSSL\n");
1648 (void)BIO_flush(bio_keylog);
1649 }
1650 SSL_CTX_set_keylog_callback(ctx, keylog_callback);
1651 return 0;
1652 }
1653
1654 void print_ca_names(BIO *bio, SSL *s)
1655 {
1656 const char *cs = SSL_is_server(s) ? "server" : "client";
1657 const STACK_OF(X509_NAME) *sk = SSL_get0_peer_CA_list(s);
1658 int i;
1659
1660 if (sk == NULL || sk_X509_NAME_num(sk) == 0) {
1661 if (!SSL_is_server(s))
1662 BIO_printf(bio, "---\nNo %s certificate CA names sent\n", cs);
1663 return;
1664 }
1665
1666 BIO_printf(bio, "---\nAcceptable %s certificate CA names\n", cs);
1667 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
1668 X509_NAME_print_ex(bio, sk_X509_NAME_value(sk, i), 0, get_nameopt());
1669 BIO_write(bio, "\n", 1);
1670 }
1671 }
1672
1673 void ssl_print_secure_renegotiation_notes(BIO *bio, SSL *s)
1674 {
1675 if (SSL_VERSION_ALLOWS_RENEGOTIATION(s)) {
1676 BIO_printf(bio, "Secure Renegotiation IS%s supported\n",
1677 SSL_get_secure_renegotiation_support(s) ? "" : " NOT");
1678 } else {
1679 BIO_printf(bio, "This TLS version forbids renegotiation.\n");
1680 }
1681 }
1682
1683 int progress_cb(EVP_PKEY_CTX *ctx)
1684 {
1685 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1686 int p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1687 static const char symbols[] = ".+*\n";
1688 char c = (p >= 0 && (size_t)p <= sizeof(symbols) - 1) ? symbols[p] : '?';
1689
1690 BIO_write(b, &c, 1);
1691 (void)BIO_flush(b);
1692 return 1;
1693 }
Mirror of https://github.com/openssl/openssl.git