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source: vbox/trunk/src/libs/openssl-3.0.3/apps/lib/s_cb.c@ 95218

最後變更 在這個檔案從95218是 94320,由 vboxsync 提交於 3 年 前

libs/openssl-3.0.1: Export to OSE and fix copyright headers in Makefiles, bugref:10128
檔案大小: 47.9 KB
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1/*
2 * Copyright 1995-2021 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
29VERIFY_CB_ARGS verify_args = { -1, 0, X509_V_OK, 0 };
30
31#ifndef OPENSSL_NO_SOCK
32static unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
33static int cookie_initialized = 0;
34#endif
35static BIO *bio_keylog = NULL;
36
37static const char *lookup(int val, const STRINT_PAIR* list, const char* def)
38{
39 for ( ; list->name; ++list)
40 if (list->retval == val)
41 return list->name;
42 return def;
43}
44
45int verify_callback(int ok, X509_STORE_CTX *ctx)
46{
47 X509 *err_cert;
48 int err, depth;
49
50 err_cert = X509_STORE_CTX_get_current_cert(ctx);
51 err = X509_STORE_CTX_get_error(ctx);
52 depth = X509_STORE_CTX_get_error_depth(ctx);
53
54 if (!verify_args.quiet || !ok) {
55 BIO_printf(bio_err, "depth=%d ", depth);
56 if (err_cert != NULL) {
57 X509_NAME_print_ex(bio_err,
58 X509_get_subject_name(err_cert),
59 0, get_nameopt());
60 BIO_puts(bio_err, "\n");
61 } else {
62 BIO_puts(bio_err, "<no cert>\n");
63 }
64 }
65 if (!ok) {
66 BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
67 X509_verify_cert_error_string(err));
68 if (verify_args.depth < 0 || verify_args.depth >= depth) {
69 if (!verify_args.return_error)
70 ok = 1;
71 verify_args.error = err;
72 } else {
73 ok = 0;
74 verify_args.error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
75 }
76 }
77 switch (err) {
78 case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
79 BIO_puts(bio_err, "issuer= ");
80 X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
81 0, get_nameopt());
82 BIO_puts(bio_err, "\n");
83 break;
84 case X509_V_ERR_CERT_NOT_YET_VALID:
85 case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
86 BIO_printf(bio_err, "notBefore=");
87 ASN1_TIME_print(bio_err, X509_get0_notBefore(err_cert));
88 BIO_printf(bio_err, "\n");
89 break;
90 case X509_V_ERR_CERT_HAS_EXPIRED:
91 case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
92 BIO_printf(bio_err, "notAfter=");
93 ASN1_TIME_print(bio_err, X509_get0_notAfter(err_cert));
94 BIO_printf(bio_err, "\n");
95 break;
96 case X509_V_ERR_NO_EXPLICIT_POLICY:
97 if (!verify_args.quiet)
98 policies_print(ctx);
99 break;
100 }
101 if (err == X509_V_OK && ok == 2 && !verify_args.quiet)
102 policies_print(ctx);
103 if (ok && !verify_args.quiet)
104 BIO_printf(bio_err, "verify return:%d\n", ok);
105 return ok;
106}
107
108int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
109{
110 if (cert_file != NULL) {
111 if (SSL_CTX_use_certificate_file(ctx, cert_file,
112 SSL_FILETYPE_PEM) <= 0) {
113 BIO_printf(bio_err, "unable to get certificate from '%s'\n",
114 cert_file);
115 ERR_print_errors(bio_err);
116 return 0;
117 }
118 if (key_file == NULL)
119 key_file = cert_file;
120 if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
121 BIO_printf(bio_err, "unable to get private key from '%s'\n",
122 key_file);
123 ERR_print_errors(bio_err);
124 return 0;
125 }
126
127 /*
128 * If we are using DSA, we can copy the parameters from the private
129 * key
130 */
131
132 /*
133 * Now we know that a key and cert have been set against the SSL
134 * context
135 */
136 if (!SSL_CTX_check_private_key(ctx)) {
137 BIO_printf(bio_err,
138 "Private key does not match the certificate public key\n");
139 return 0;
140 }
141 }
142 return 1;
143}
144
145int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
146 STACK_OF(X509) *chain, int build_chain)
147{
148 int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
149
150 if (cert == NULL)
151 return 1;
152 if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
153 BIO_printf(bio_err, "error setting certificate\n");
154 ERR_print_errors(bio_err);
155 return 0;
156 }
157
158 if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
159 BIO_printf(bio_err, "error setting private key\n");
160 ERR_print_errors(bio_err);
161 return 0;
162 }
163
164 /*
165 * Now we know that a key and cert have been set against the SSL context
166 */
167 if (!SSL_CTX_check_private_key(ctx)) {
168 BIO_printf(bio_err,
169 "Private key does not match the certificate public key\n");
170 return 0;
171 }
172 if (chain && !SSL_CTX_set1_chain(ctx, chain)) {
173 BIO_printf(bio_err, "error setting certificate chain\n");
174 ERR_print_errors(bio_err);
175 return 0;
176 }
177 if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) {
178 BIO_printf(bio_err, "error building certificate chain\n");
179 ERR_print_errors(bio_err);
180 return 0;
181 }
182 return 1;
183}
184
185static STRINT_PAIR cert_type_list[] = {
186 {"RSA sign", TLS_CT_RSA_SIGN},
187 {"DSA sign", TLS_CT_DSS_SIGN},
188 {"RSA fixed DH", TLS_CT_RSA_FIXED_DH},
189 {"DSS fixed DH", TLS_CT_DSS_FIXED_DH},
190 {"ECDSA sign", TLS_CT_ECDSA_SIGN},
191 {"RSA fixed ECDH", TLS_CT_RSA_FIXED_ECDH},
192 {"ECDSA fixed ECDH", TLS_CT_ECDSA_FIXED_ECDH},
193 {"GOST01 Sign", TLS_CT_GOST01_SIGN},
194 {"GOST12 Sign", TLS_CT_GOST12_IANA_SIGN},
195 {NULL}
196};
197
198static void ssl_print_client_cert_types(BIO *bio, SSL *s)
199{
200 const unsigned char *p;
201 int i;
202 int cert_type_num = SSL_get0_certificate_types(s, &p);
203
204 if (!cert_type_num)
205 return;
206 BIO_puts(bio, "Client Certificate Types: ");
207 for (i = 0; i < cert_type_num; i++) {
208 unsigned char cert_type = p[i];
209 const char *cname = lookup((int)cert_type, cert_type_list, NULL);
210
211 if (i)
212 BIO_puts(bio, ", ");
213 if (cname != NULL)
214 BIO_puts(bio, cname);
215 else
216 BIO_printf(bio, "UNKNOWN (%d),", cert_type);
217 }
218 BIO_puts(bio, "\n");
219}
220
221static const char *get_sigtype(int nid)
222{
223 switch (nid) {
224 case EVP_PKEY_RSA:
225 return "RSA";
226
227 case EVP_PKEY_RSA_PSS:
228 return "RSA-PSS";
229
230 case EVP_PKEY_DSA:
231 return "DSA";
232
233 case EVP_PKEY_EC:
234 return "ECDSA";
235
236 case NID_ED25519:
237 return "Ed25519";
238
239 case NID_ED448:
240 return "Ed448";
241
242 case NID_id_GostR3410_2001:
243 return "gost2001";
244
245 case NID_id_GostR3410_2012_256:
246 return "gost2012_256";
247
248 case NID_id_GostR3410_2012_512:
249 return "gost2012_512";
250
251 default:
252 return NULL;
253 }
254}
255
256static int do_print_sigalgs(BIO *out, SSL *s, int shared)
257{
258 int i, nsig, client;
259
260 client = SSL_is_server(s) ? 0 : 1;
261 if (shared)
262 nsig = SSL_get_shared_sigalgs(s, 0, NULL, NULL, NULL, NULL, NULL);
263 else
264 nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
265 if (nsig == 0)
266 return 1;
267
268 if (shared)
269 BIO_puts(out, "Shared ");
270
271 if (client)
272 BIO_puts(out, "Requested ");
273 BIO_puts(out, "Signature Algorithms: ");
274 for (i = 0; i < nsig; i++) {
275 int hash_nid, sign_nid;
276 unsigned char rhash, rsign;
277 const char *sstr = NULL;
278 if (shared)
279 SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
280 &rsign, &rhash);
281 else
282 SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
283 if (i)
284 BIO_puts(out, ":");
285 sstr = get_sigtype(sign_nid);
286 if (sstr)
287 BIO_printf(out, "%s", sstr);
288 else
289 BIO_printf(out, "0x%02X", (int)rsign);
290 if (hash_nid != NID_undef)
291 BIO_printf(out, "+%s", OBJ_nid2sn(hash_nid));
292 else if (sstr == NULL)
293 BIO_printf(out, "+0x%02X", (int)rhash);
294 }
295 BIO_puts(out, "\n");
296 return 1;
297}
298
299int ssl_print_sigalgs(BIO *out, SSL *s)
300{
301 int nid;
302
303 if (!SSL_is_server(s))
304 ssl_print_client_cert_types(out, s);
305 do_print_sigalgs(out, s, 0);
306 do_print_sigalgs(out, s, 1);
307 if (SSL_get_peer_signature_nid(s, &nid) && nid != NID_undef)
308 BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(nid));
309 if (SSL_get_peer_signature_type_nid(s, &nid))
310 BIO_printf(out, "Peer signature type: %s\n", get_sigtype(nid));
311 return 1;
312}
313
314#ifndef OPENSSL_NO_EC
315int ssl_print_point_formats(BIO *out, SSL *s)
316{
317 int i, nformats;
318 const char *pformats;
319
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
350int ssl_print_groups(BIO *out, SSL *s, int noshared)
351{
352 int i, ngroups, *groups, nid;
353
354 ngroups = SSL_get1_groups(s, NULL);
355 if (ngroups <= 0)
356 return 1;
357 groups = app_malloc(ngroups * sizeof(int), "groups to print");
358 SSL_get1_groups(s, groups);
359
360 BIO_puts(out, "Supported groups: ");
361 for (i = 0; i < ngroups; i++) {
362 if (i)
363 BIO_puts(out, ":");
364 nid = groups[i];
365 BIO_printf(out, "%s", SSL_group_to_name(s, nid));
366 }
367 OPENSSL_free(groups);
368 if (noshared) {
369 BIO_puts(out, "\n");
370 return 1;
371 }
372 BIO_puts(out, "\nShared groups: ");
373 ngroups = SSL_get_shared_group(s, -1);
374 for (i = 0; i < ngroups; i++) {
375 if (i)
376 BIO_puts(out, ":");
377 nid = SSL_get_shared_group(s, i);
378 BIO_printf(out, "%s", SSL_group_to_name(s, nid));
379 }
380 if (ngroups == 0)
381 BIO_puts(out, "NONE");
382 BIO_puts(out, "\n");
383 return 1;
384}
385#endif
386
387int ssl_print_tmp_key(BIO *out, SSL *s)
388{
389 EVP_PKEY *key;
390
391 if (!SSL_get_peer_tmp_key(s, &key))
392 return 1;
393 BIO_puts(out, "Server Temp Key: ");
394 switch (EVP_PKEY_get_id(key)) {
395 case EVP_PKEY_RSA:
396 BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_get_bits(key));
397 break;
398
399 case EVP_PKEY_DH:
400 BIO_printf(out, "DH, %d bits\n", EVP_PKEY_get_bits(key));
401 break;
402#ifndef OPENSSL_NO_EC
403 case EVP_PKEY_EC:
404 {
405 char name[80];
406 size_t name_len;
407
408 if (!EVP_PKEY_get_utf8_string_param(key, OSSL_PKEY_PARAM_GROUP_NAME,
409 name, sizeof(name), &name_len))
410 strcpy(name, "?");
411 BIO_printf(out, "ECDH, %s, %d bits\n", name, EVP_PKEY_get_bits(key));
412 }
413 break;
414#endif
415 default:
416 BIO_printf(out, "%s, %d bits\n", OBJ_nid2sn(EVP_PKEY_get_id(key)),
417 EVP_PKEY_get_bits(key));
418 }
419 EVP_PKEY_free(key);
420 return 1;
421}
422
423long bio_dump_callback(BIO *bio, int cmd, const char *argp, size_t len,
424 int argi, long argl, int ret, size_t *processed)
425{
426 BIO *out;
427
428 out = (BIO *)BIO_get_callback_arg(bio);
429 if (out == NULL)
430 return ret;
431
432 if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
433 if (ret > 0 && processed != NULL) {
434 BIO_printf(out, "read from %p [%p] (%zu bytes => %zu (0x%zX))\n",
435 (void *)bio, (void *)argp, len, *processed, *processed);
436 BIO_dump(out, argp, (int)*processed);
437 } else {
438 BIO_printf(out, "read from %p [%p] (%zu bytes => %d)\n",
439 (void *)bio, (void *)argp, len, ret);
440 }
441 } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
442 if (ret > 0 && processed != NULL) {
443 BIO_printf(out, "write to %p [%p] (%zu bytes => %zu (0x%zX))\n",
444 (void *)bio, (void *)argp, len, *processed, *processed);
445 BIO_dump(out, argp, (int)*processed);
446 } else {
447 BIO_printf(out, "write to %p [%p] (%zu bytes => %d)\n",
448 (void *)bio, (void *)argp, len, ret);
449 }
450 }
451 return ret;
452}
453
454void apps_ssl_info_callback(const SSL *s, int where, int ret)
455{
456 const char *str;
457 int w;
458
459 w = where & ~SSL_ST_MASK;
460
461 if (w & SSL_ST_CONNECT)
462 str = "SSL_connect";
463 else if (w & SSL_ST_ACCEPT)
464 str = "SSL_accept";
465 else
466 str = "undefined";
467
468 if (where & SSL_CB_LOOP) {
469 BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
470 } else if (where & SSL_CB_ALERT) {
471 str = (where & SSL_CB_READ) ? "read" : "write";
472 BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
473 str,
474 SSL_alert_type_string_long(ret),
475 SSL_alert_desc_string_long(ret));
476 } else if (where & SSL_CB_EXIT) {
477 if (ret == 0)
478 BIO_printf(bio_err, "%s:failed in %s\n",
479 str, SSL_state_string_long(s));
480 else if (ret < 0)
481 BIO_printf(bio_err, "%s:error in %s\n",
482 str, SSL_state_string_long(s));
483 }
484}
485
486static STRINT_PAIR ssl_versions[] = {
487 {"SSL 3.0", SSL3_VERSION},
488 {"TLS 1.0", TLS1_VERSION},
489 {"TLS 1.1", TLS1_1_VERSION},
490 {"TLS 1.2", TLS1_2_VERSION},
491 {"TLS 1.3", TLS1_3_VERSION},
492 {"DTLS 1.0", DTLS1_VERSION},
493 {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
494 {NULL}
495};
496
497static STRINT_PAIR alert_types[] = {
498 {" close_notify", 0},
499 {" end_of_early_data", 1},
500 {" unexpected_message", 10},
501 {" bad_record_mac", 20},
502 {" decryption_failed", 21},
503 {" record_overflow", 22},
504 {" decompression_failure", 30},
505 {" handshake_failure", 40},
506 {" bad_certificate", 42},
507 {" unsupported_certificate", 43},
508 {" certificate_revoked", 44},
509 {" certificate_expired", 45},
510 {" certificate_unknown", 46},
511 {" illegal_parameter", 47},
512 {" unknown_ca", 48},
513 {" access_denied", 49},
514 {" decode_error", 50},
515 {" decrypt_error", 51},
516 {" export_restriction", 60},
517 {" protocol_version", 70},
518 {" insufficient_security", 71},
519 {" internal_error", 80},
520 {" inappropriate_fallback", 86},
521 {" user_canceled", 90},
522 {" no_renegotiation", 100},
523 {" missing_extension", 109},
524 {" unsupported_extension", 110},
525 {" certificate_unobtainable", 111},
526 {" unrecognized_name", 112},
527 {" bad_certificate_status_response", 113},
528 {" bad_certificate_hash_value", 114},
529 {" unknown_psk_identity", 115},
530 {" certificate_required", 116},
531 {NULL}
532};
533
534static STRINT_PAIR handshakes[] = {
535 {", HelloRequest", SSL3_MT_HELLO_REQUEST},
536 {", ClientHello", SSL3_MT_CLIENT_HELLO},
537 {", ServerHello", SSL3_MT_SERVER_HELLO},
538 {", HelloVerifyRequest", DTLS1_MT_HELLO_VERIFY_REQUEST},
539 {", NewSessionTicket", SSL3_MT_NEWSESSION_TICKET},
540 {", EndOfEarlyData", SSL3_MT_END_OF_EARLY_DATA},
541 {", EncryptedExtensions", SSL3_MT_ENCRYPTED_EXTENSIONS},
542 {", Certificate", SSL3_MT_CERTIFICATE},
543 {", ServerKeyExchange", SSL3_MT_SERVER_KEY_EXCHANGE},
544 {", CertificateRequest", SSL3_MT_CERTIFICATE_REQUEST},
545 {", ServerHelloDone", SSL3_MT_SERVER_DONE},
546 {", CertificateVerify", SSL3_MT_CERTIFICATE_VERIFY},
547 {", ClientKeyExchange", SSL3_MT_CLIENT_KEY_EXCHANGE},
548 {", Finished", SSL3_MT_FINISHED},
549 {", CertificateUrl", SSL3_MT_CERTIFICATE_URL},
550 {", CertificateStatus", SSL3_MT_CERTIFICATE_STATUS},
551 {", SupplementalData", SSL3_MT_SUPPLEMENTAL_DATA},
552 {", KeyUpdate", SSL3_MT_KEY_UPDATE},
553#ifndef OPENSSL_NO_NEXTPROTONEG
554 {", NextProto", SSL3_MT_NEXT_PROTO},
555#endif
556 {", MessageHash", SSL3_MT_MESSAGE_HASH},
557 {NULL}
558};
559
560void msg_cb(int write_p, int version, int content_type, const void *buf,
561 size_t len, SSL *ssl, void *arg)
562{
563 BIO *bio = arg;
564 const char *str_write_p = write_p ? ">>>" : "<<<";
565 char tmpbuf[128];
566 const char *str_version, *str_content_type = "", *str_details1 = "", *str_details2 = "";
567 const unsigned char* bp = buf;
568
569 if (version == SSL3_VERSION ||
570 version == TLS1_VERSION ||
571 version == TLS1_1_VERSION ||
572 version == TLS1_2_VERSION ||
573 version == TLS1_3_VERSION ||
574 version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
575 str_version = lookup(version, ssl_versions, "???");
576 switch (content_type) {
577 case SSL3_RT_CHANGE_CIPHER_SPEC:
578 /* type 20 */
579 str_content_type = ", ChangeCipherSpec";
580 break;
581 case SSL3_RT_ALERT:
582 /* type 21 */
583 str_content_type = ", Alert";
584 str_details1 = ", ???";
585 if (len == 2) {
586 switch (bp[0]) {
587 case 1:
588 str_details1 = ", warning";
589 break;
590 case 2:
591 str_details1 = ", fatal";
592 break;
593 }
594 str_details2 = lookup((int)bp[1], alert_types, " ???");
595 }
596 break;
597 case SSL3_RT_HANDSHAKE:
598 /* type 22 */
599 str_content_type = ", Handshake";
600 str_details1 = "???";
601 if (len > 0)
602 str_details1 = lookup((int)bp[0], handshakes, "???");
603 break;
604 case SSL3_RT_APPLICATION_DATA:
605 /* type 23 */
606 str_content_type = ", ApplicationData";
607 break;
608 case SSL3_RT_HEADER:
609 /* type 256 */
610 str_content_type = ", RecordHeader";
611 break;
612 case SSL3_RT_INNER_CONTENT_TYPE:
613 /* type 257 */
614 str_content_type = ", InnerContent";
615 break;
616 default:
617 BIO_snprintf(tmpbuf, sizeof(tmpbuf)-1, ", Unknown (content_type=%d)", content_type);
618 str_content_type = tmpbuf;
619 }
620 } else {
621 BIO_snprintf(tmpbuf, sizeof(tmpbuf)-1, "Not TLS data or unknown version (version=%d, content_type=%d)", version, content_type);
622 str_version = tmpbuf;
623 }
624
625 BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
626 str_content_type, (unsigned long)len, str_details1,
627 str_details2);
628
629 if (len > 0) {
630 size_t num, i;
631
632 BIO_printf(bio, " ");
633 num = len;
634 for (i = 0; i < num; i++) {
635 if (i % 16 == 0 && i > 0)
636 BIO_printf(bio, "\n ");
637 BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
638 }
639 if (i < len)
640 BIO_printf(bio, " ...");
641 BIO_printf(bio, "\n");
642 }
643 (void)BIO_flush(bio);
644}
645
646static STRINT_PAIR tlsext_types[] = {
647 {"server name", TLSEXT_TYPE_server_name},
648 {"max fragment length", TLSEXT_TYPE_max_fragment_length},
649 {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
650 {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
651 {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
652 {"status request", TLSEXT_TYPE_status_request},
653 {"user mapping", TLSEXT_TYPE_user_mapping},
654 {"client authz", TLSEXT_TYPE_client_authz},
655 {"server authz", TLSEXT_TYPE_server_authz},
656 {"cert type", TLSEXT_TYPE_cert_type},
657 {"supported_groups", TLSEXT_TYPE_supported_groups},
658 {"EC point formats", TLSEXT_TYPE_ec_point_formats},
659 {"SRP", TLSEXT_TYPE_srp},
660 {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
661 {"use SRTP", TLSEXT_TYPE_use_srtp},
662 {"session ticket", TLSEXT_TYPE_session_ticket},
663 {"renegotiation info", TLSEXT_TYPE_renegotiate},
664 {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp},
665 {"TLS padding", TLSEXT_TYPE_padding},
666#ifdef TLSEXT_TYPE_next_proto_neg
667 {"next protocol", TLSEXT_TYPE_next_proto_neg},
668#endif
669#ifdef TLSEXT_TYPE_encrypt_then_mac
670 {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
671#endif
672#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
673 {"application layer protocol negotiation",
674 TLSEXT_TYPE_application_layer_protocol_negotiation},
675#endif
676#ifdef TLSEXT_TYPE_extended_master_secret
677 {"extended master secret", TLSEXT_TYPE_extended_master_secret},
678#endif
679 {"key share", TLSEXT_TYPE_key_share},
680 {"supported versions", TLSEXT_TYPE_supported_versions},
681 {"psk", TLSEXT_TYPE_psk},
682 {"psk kex modes", TLSEXT_TYPE_psk_kex_modes},
683 {"certificate authorities", TLSEXT_TYPE_certificate_authorities},
684 {"post handshake auth", TLSEXT_TYPE_post_handshake_auth},
685 {NULL}
686};
687
688/* from rfc8446 4.2.3. + gost (https://tools.ietf.org/id/draft-smyshlyaev-tls12-gost-suites-04.html) */
689static STRINT_PAIR signature_tls13_scheme_list[] = {
690 {"rsa_pkcs1_sha1", 0x0201 /* TLSEXT_SIGALG_rsa_pkcs1_sha1 */},
691 {"ecdsa_sha1", 0x0203 /* TLSEXT_SIGALG_ecdsa_sha1 */},
692/* {"rsa_pkcs1_sha224", 0x0301 TLSEXT_SIGALG_rsa_pkcs1_sha224}, not in rfc8446 */
693/* {"ecdsa_sha224", 0x0303 TLSEXT_SIGALG_ecdsa_sha224} not in rfc8446 */
694 {"rsa_pkcs1_sha256", 0x0401 /* TLSEXT_SIGALG_rsa_pkcs1_sha256 */},
695 {"ecdsa_secp256r1_sha256", 0x0403 /* TLSEXT_SIGALG_ecdsa_secp256r1_sha256 */},
696 {"rsa_pkcs1_sha384", 0x0501 /* TLSEXT_SIGALG_rsa_pkcs1_sha384 */},
697 {"ecdsa_secp384r1_sha384", 0x0503 /* TLSEXT_SIGALG_ecdsa_secp384r1_sha384 */},
698 {"rsa_pkcs1_sha512", 0x0601 /* TLSEXT_SIGALG_rsa_pkcs1_sha512 */},
699 {"ecdsa_secp521r1_sha512", 0x0603 /* TLSEXT_SIGALG_ecdsa_secp521r1_sha512 */},
700 {"rsa_pss_rsae_sha256", 0x0804 /* TLSEXT_SIGALG_rsa_pss_rsae_sha256 */},
701 {"rsa_pss_rsae_sha384", 0x0805 /* TLSEXT_SIGALG_rsa_pss_rsae_sha384 */},
702 {"rsa_pss_rsae_sha512", 0x0806 /* TLSEXT_SIGALG_rsa_pss_rsae_sha512 */},
703 {"ed25519", 0x0807 /* TLSEXT_SIGALG_ed25519 */},
704 {"ed448", 0x0808 /* TLSEXT_SIGALG_ed448 */},
705 {"rsa_pss_pss_sha256", 0x0809 /* TLSEXT_SIGALG_rsa_pss_pss_sha256 */},
706 {"rsa_pss_pss_sha384", 0x080a /* TLSEXT_SIGALG_rsa_pss_pss_sha384 */},
707 {"rsa_pss_pss_sha512", 0x080b /* TLSEXT_SIGALG_rsa_pss_pss_sha512 */},
708 {"gostr34102001", 0xeded /* TLSEXT_SIGALG_gostr34102001_gostr3411 */},
709 {"gostr34102012_256", 0xeeee /* TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 */},
710 {"gostr34102012_512", 0xefef /* TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 */},
711 {NULL}
712};
713
714/* from rfc5246 7.4.1.4.1. */
715static STRINT_PAIR signature_tls12_alg_list[] = {
716 {"anonymous", TLSEXT_signature_anonymous /* 0 */},
717 {"RSA", TLSEXT_signature_rsa /* 1 */},
718 {"DSA", TLSEXT_signature_dsa /* 2 */},
719 {"ECDSA", TLSEXT_signature_ecdsa /* 3 */},
720 {NULL}
721};
722
723/* from rfc5246 7.4.1.4.1. */
724static STRINT_PAIR signature_tls12_hash_list[] = {
725 {"none", TLSEXT_hash_none /* 0 */},
726 {"MD5", TLSEXT_hash_md5 /* 1 */},
727 {"SHA1", TLSEXT_hash_sha1 /* 2 */},
728 {"SHA224", TLSEXT_hash_sha224 /* 3 */},
729 {"SHA256", TLSEXT_hash_sha256 /* 4 */},
730 {"SHA384", TLSEXT_hash_sha384 /* 5 */},
731 {"SHA512", TLSEXT_hash_sha512 /* 6 */},
732 {NULL}
733};
734
735void tlsext_cb(SSL *s, int client_server, int type,
736 const unsigned char *data, int len, void *arg)
737{
738 BIO *bio = arg;
739 const char *extname = lookup(type, tlsext_types, "unknown");
740
741 BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
742 client_server ? "server" : "client", extname, type, len);
743 BIO_dump(bio, (const char *)data, len);
744 (void)BIO_flush(bio);
745}
746
747#ifndef OPENSSL_NO_SOCK
748int generate_stateless_cookie_callback(SSL *ssl, unsigned char *cookie,
749 size_t *cookie_len)
750{
751 unsigned char *buffer = NULL;
752 size_t length = 0;
753 unsigned short port;
754 BIO_ADDR *lpeer = NULL, *peer = NULL;
755 int res = 0;
756
757 /* Initialize a random secret */
758 if (!cookie_initialized) {
759 if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
760 BIO_printf(bio_err, "error setting random cookie secret\n");
761 return 0;
762 }
763 cookie_initialized = 1;
764 }
765
766 if (SSL_is_dtls(ssl)) {
767 lpeer = peer = BIO_ADDR_new();
768 if (peer == NULL) {
769 BIO_printf(bio_err, "memory full\n");
770 return 0;
771 }
772
773 /* Read peer information */
774 (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer);
775 } else {
776 peer = ourpeer;
777 }
778
779 /* Create buffer with peer's address and port */
780 if (!BIO_ADDR_rawaddress(peer, NULL, &length)) {
781 BIO_printf(bio_err, "Failed getting peer address\n");
782 BIO_ADDR_free(lpeer);
783 return 0;
784 }
785 OPENSSL_assert(length != 0);
786 port = BIO_ADDR_rawport(peer);
787 length += sizeof(port);
788 buffer = app_malloc(length, "cookie generate buffer");
789
790 memcpy(buffer, &port, sizeof(port));
791 BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL);
792
793 if (EVP_Q_mac(NULL, "HMAC", NULL, "SHA1", NULL,
794 cookie_secret, COOKIE_SECRET_LENGTH, buffer, length,
795 cookie, DTLS1_COOKIE_LENGTH, cookie_len) == NULL) {
796 BIO_printf(bio_err,
797 "Error calculating HMAC-SHA1 of buffer with secret\n");
798 goto end;
799 }
800 res = 1;
801end:
802 OPENSSL_free(buffer);
803 BIO_ADDR_free(lpeer);
804
805 return res;
806}
807
808int verify_stateless_cookie_callback(SSL *ssl, const unsigned char *cookie,
809 size_t cookie_len)
810{
811 unsigned char result[EVP_MAX_MD_SIZE];
812 size_t resultlength;
813
814 /* Note: we check cookie_initialized because if it's not,
815 * it cannot be valid */
816 if (cookie_initialized
817 && generate_stateless_cookie_callback(ssl, result, &resultlength)
818 && cookie_len == resultlength
819 && memcmp(result, cookie, resultlength) == 0)
820 return 1;
821
822 return 0;
823}
824
825int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
826 unsigned int *cookie_len)
827{
828 size_t temp = 0;
829 int res = generate_stateless_cookie_callback(ssl, cookie, &temp);
830
831 if (res != 0)
832 *cookie_len = (unsigned int)temp;
833 return res;
834}
835
836int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
837 unsigned int cookie_len)
838{
839 return verify_stateless_cookie_callback(ssl, cookie, cookie_len);
840}
841
842#endif
843
844/*
845 * Example of extended certificate handling. Where the standard support of
846 * one certificate per algorithm is not sufficient an application can decide
847 * which certificate(s) to use at runtime based on whatever criteria it deems
848 * appropriate.
849 */
850
851/* Linked list of certificates, keys and chains */
852struct ssl_excert_st {
853 int certform;
854 const char *certfile;
855 int keyform;
856 const char *keyfile;
857 const char *chainfile;
858 X509 *cert;
859 EVP_PKEY *key;
860 STACK_OF(X509) *chain;
861 int build_chain;
862 struct ssl_excert_st *next, *prev;
863};
864
865static STRINT_PAIR chain_flags[] = {
866 {"Overall Validity", CERT_PKEY_VALID},
867 {"Sign with EE key", CERT_PKEY_SIGN},
868 {"EE signature", CERT_PKEY_EE_SIGNATURE},
869 {"CA signature", CERT_PKEY_CA_SIGNATURE},
870 {"EE key parameters", CERT_PKEY_EE_PARAM},
871 {"CA key parameters", CERT_PKEY_CA_PARAM},
872 {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
873 {"Issuer Name", CERT_PKEY_ISSUER_NAME},
874 {"Certificate Type", CERT_PKEY_CERT_TYPE},
875 {NULL}
876};
877
878static void print_chain_flags(SSL *s, int flags)
879{
880 STRINT_PAIR *pp;
881
882 for (pp = chain_flags; pp->name; ++pp)
883 BIO_printf(bio_err, "\t%s: %s\n",
884 pp->name,
885 (flags & pp->retval) ? "OK" : "NOT OK");
886 BIO_printf(bio_err, "\tSuite B: ");
887 if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
888 BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
889 else
890 BIO_printf(bio_err, "not tested\n");
891}
892
893/*
894 * Very basic selection callback: just use any certificate chain reported as
895 * valid. More sophisticated could prioritise according to local policy.
896 */
897static int set_cert_cb(SSL *ssl, void *arg)
898{
899 int i, rv;
900 SSL_EXCERT *exc = arg;
901#ifdef CERT_CB_TEST_RETRY
902 static int retry_cnt;
903
904 if (retry_cnt < 5) {
905 retry_cnt++;
906 BIO_printf(bio_err,
907 "Certificate callback retry test: count %d\n",
908 retry_cnt);
909 return -1;
910 }
911#endif
912 SSL_certs_clear(ssl);
913
914 if (exc == NULL)
915 return 1;
916
917 /*
918 * Go to end of list and traverse backwards since we prepend newer
919 * entries this retains the original order.
920 */
921 while (exc->next != NULL)
922 exc = exc->next;
923
924 i = 0;
925
926 while (exc != NULL) {
927 i++;
928 rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
929 BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
930 X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
931 get_nameopt());
932 BIO_puts(bio_err, "\n");
933 print_chain_flags(ssl, rv);
934 if (rv & CERT_PKEY_VALID) {
935 if (!SSL_use_certificate(ssl, exc->cert)
936 || !SSL_use_PrivateKey(ssl, exc->key)) {
937 return 0;
938 }
939 /*
940 * NB: we wouldn't normally do this as it is not efficient
941 * building chains on each connection better to cache the chain
942 * in advance.
943 */
944 if (exc->build_chain) {
945 if (!SSL_build_cert_chain(ssl, 0))
946 return 0;
947 } else if (exc->chain != NULL) {
948 if (!SSL_set1_chain(ssl, exc->chain))
949 return 0;
950 }
951 }
952 exc = exc->prev;
953 }
954 return 1;
955}
956
957void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
958{
959 SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
960}
961
962static int ssl_excert_prepend(SSL_EXCERT **pexc)
963{
964 SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
965
966 memset(exc, 0, sizeof(*exc));
967
968 exc->next = *pexc;
969 *pexc = exc;
970
971 if (exc->next) {
972 exc->certform = exc->next->certform;
973 exc->keyform = exc->next->keyform;
974 exc->next->prev = exc;
975 } else {
976 exc->certform = FORMAT_PEM;
977 exc->keyform = FORMAT_PEM;
978 }
979 return 1;
980
981}
982
983void ssl_excert_free(SSL_EXCERT *exc)
984{
985 SSL_EXCERT *curr;
986
987 if (exc == NULL)
988 return;
989 while (exc) {
990 X509_free(exc->cert);
991 EVP_PKEY_free(exc->key);
992 sk_X509_pop_free(exc->chain, X509_free);
993 curr = exc;
994 exc = exc->next;
995 OPENSSL_free(curr);
996 }
997}
998
999int load_excert(SSL_EXCERT **pexc)
1000{
1001 SSL_EXCERT *exc = *pexc;
1002
1003 if (exc == NULL)
1004 return 1;
1005 /* If nothing in list, free and set to NULL */
1006 if (exc->certfile == NULL && exc->next == NULL) {
1007 ssl_excert_free(exc);
1008 *pexc = NULL;
1009 return 1;
1010 }
1011 for (; exc; exc = exc->next) {
1012 if (exc->certfile == NULL) {
1013 BIO_printf(bio_err, "Missing filename\n");
1014 return 0;
1015 }
1016 exc->cert = load_cert(exc->certfile, exc->certform,
1017 "Server Certificate");
1018 if (exc->cert == NULL)
1019 return 0;
1020 if (exc->keyfile != NULL) {
1021 exc->key = load_key(exc->keyfile, exc->keyform,
1022 0, NULL, NULL, "server key");
1023 } else {
1024 exc->key = load_key(exc->certfile, exc->certform,
1025 0, NULL, NULL, "server key");
1026 }
1027 if (exc->key == NULL)
1028 return 0;
1029 if (exc->chainfile != NULL) {
1030 if (!load_certs(exc->chainfile, 0, &exc->chain, NULL, "server chain"))
1031 return 0;
1032 }
1033 }
1034 return 1;
1035}
1036
1037enum range { OPT_X_ENUM };
1038
1039int args_excert(int opt, SSL_EXCERT **pexc)
1040{
1041 SSL_EXCERT *exc = *pexc;
1042
1043 assert(opt > OPT_X__FIRST);
1044 assert(opt < OPT_X__LAST);
1045
1046 if (exc == NULL) {
1047 if (!ssl_excert_prepend(&exc)) {
1048 BIO_printf(bio_err, " %s: Error initialising xcert\n",
1049 opt_getprog());
1050 goto err;
1051 }
1052 *pexc = exc;
1053 }
1054
1055 switch ((enum range)opt) {
1056 case OPT_X__FIRST:
1057 case OPT_X__LAST:
1058 return 0;
1059 case OPT_X_CERT:
1060 if (exc->certfile != NULL && !ssl_excert_prepend(&exc)) {
1061 BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
1062 goto err;
1063 }
1064 *pexc = exc;
1065 exc->certfile = opt_arg();
1066 break;
1067 case OPT_X_KEY:
1068 if (exc->keyfile != NULL) {
1069 BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
1070 goto err;
1071 }
1072 exc->keyfile = opt_arg();
1073 break;
1074 case OPT_X_CHAIN:
1075 if (exc->chainfile != NULL) {
1076 BIO_printf(bio_err, "%s: Chain already specified\n",
1077 opt_getprog());
1078 goto err;
1079 }
1080 exc->chainfile = opt_arg();
1081 break;
1082 case OPT_X_CHAIN_BUILD:
1083 exc->build_chain = 1;
1084 break;
1085 case OPT_X_CERTFORM:
1086 if (!opt_format(opt_arg(), OPT_FMT_ANY, &exc->certform))
1087 return 0;
1088 break;
1089 case OPT_X_KEYFORM:
1090 if (!opt_format(opt_arg(), OPT_FMT_ANY, &exc->keyform))
1091 return 0;
1092 break;
1093 }
1094 return 1;
1095
1096 err:
1097 ERR_print_errors(bio_err);
1098 ssl_excert_free(exc);
1099 *pexc = NULL;
1100 return 0;
1101}
1102
1103static void print_raw_cipherlist(SSL *s)
1104{
1105 const unsigned char *rlist;
1106 static const unsigned char scsv_id[] = { 0, 0xFF };
1107 size_t i, rlistlen, num;
1108
1109 if (!SSL_is_server(s))
1110 return;
1111 num = SSL_get0_raw_cipherlist(s, NULL);
1112 OPENSSL_assert(num == 2);
1113 rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
1114 BIO_puts(bio_err, "Client cipher list: ");
1115 for (i = 0; i < rlistlen; i += num, rlist += num) {
1116 const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
1117 if (i)
1118 BIO_puts(bio_err, ":");
1119 if (c != NULL) {
1120 BIO_puts(bio_err, SSL_CIPHER_get_name(c));
1121 } else if (memcmp(rlist, scsv_id, num) == 0) {
1122 BIO_puts(bio_err, "SCSV");
1123 } else {
1124 size_t j;
1125 BIO_puts(bio_err, "0x");
1126 for (j = 0; j < num; j++)
1127 BIO_printf(bio_err, "%02X", rlist[j]);
1128 }
1129 }
1130 BIO_puts(bio_err, "\n");
1131}
1132
1133/*
1134 * Hex encoder for TLSA RRdata, not ':' delimited.
1135 */
1136static char *hexencode(const unsigned char *data, size_t len)
1137{
1138 static const char *hex = "0123456789abcdef";
1139 char *out;
1140 char *cp;
1141 size_t outlen = 2 * len + 1;
1142 int ilen = (int) outlen;
1143
1144 if (outlen < len || ilen < 0 || outlen != (size_t)ilen) {
1145 BIO_printf(bio_err, "%s: %zu-byte buffer too large to hexencode\n",
1146 opt_getprog(), len);
1147 exit(1);
1148 }
1149 cp = out = app_malloc(ilen, "TLSA hex data buffer");
1150
1151 while (len-- > 0) {
1152 *cp++ = hex[(*data >> 4) & 0x0f];
1153 *cp++ = hex[*data++ & 0x0f];
1154 }
1155 *cp = '\0';
1156 return out;
1157}
1158
1159void print_verify_detail(SSL *s, BIO *bio)
1160{
1161 int mdpth;
1162 EVP_PKEY *mspki;
1163 long verify_err = SSL_get_verify_result(s);
1164
1165 if (verify_err == X509_V_OK) {
1166 const char *peername = SSL_get0_peername(s);
1167
1168 BIO_printf(bio, "Verification: OK\n");
1169 if (peername != NULL)
1170 BIO_printf(bio, "Verified peername: %s\n", peername);
1171 } else {
1172 const char *reason = X509_verify_cert_error_string(verify_err);
1173
1174 BIO_printf(bio, "Verification error: %s\n", reason);
1175 }
1176
1177 if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) {
1178 uint8_t usage, selector, mtype;
1179 const unsigned char *data = NULL;
1180 size_t dlen = 0;
1181 char *hexdata;
1182
1183 mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen);
1184
1185 /*
1186 * The TLSA data field can be quite long when it is a certificate,
1187 * public key or even a SHA2-512 digest. Because the initial octets of
1188 * ASN.1 certificates and public keys contain mostly boilerplate OIDs
1189 * and lengths, we show the last 12 bytes of the data instead, as these
1190 * are more likely to distinguish distinct TLSA records.
1191 */
1192#define TLSA_TAIL_SIZE 12
1193 if (dlen > TLSA_TAIL_SIZE)
1194 hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE);
1195 else
1196 hexdata = hexencode(data, dlen);
1197 BIO_printf(bio, "DANE TLSA %d %d %d %s%s %s at depth %d\n",
1198 usage, selector, mtype,
1199 (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata,
1200 (mspki != NULL) ? "signed the certificate" :
1201 mdpth ? "matched TA certificate" : "matched EE certificate",
1202 mdpth);
1203 OPENSSL_free(hexdata);
1204 }
1205}
1206
1207void print_ssl_summary(SSL *s)
1208{
1209 const SSL_CIPHER *c;
1210 X509 *peer;
1211
1212 BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
1213 print_raw_cipherlist(s);
1214 c = SSL_get_current_cipher(s);
1215 BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
1216 do_print_sigalgs(bio_err, s, 0);
1217 peer = SSL_get0_peer_certificate(s);
1218 if (peer != NULL) {
1219 int nid;
1220
1221 BIO_puts(bio_err, "Peer certificate: ");
1222 X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1223 0, get_nameopt());
1224 BIO_puts(bio_err, "\n");
1225 if (SSL_get_peer_signature_nid(s, &nid))
1226 BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1227 if (SSL_get_peer_signature_type_nid(s, &nid))
1228 BIO_printf(bio_err, "Signature type: %s\n", get_sigtype(nid));
1229 print_verify_detail(s, bio_err);
1230 } else {
1231 BIO_puts(bio_err, "No peer certificate\n");
1232 }
1233#ifndef OPENSSL_NO_EC
1234 ssl_print_point_formats(bio_err, s);
1235 if (SSL_is_server(s))
1236 ssl_print_groups(bio_err, s, 1);
1237 else
1238 ssl_print_tmp_key(bio_err, s);
1239#else
1240 if (!SSL_is_server(s))
1241 ssl_print_tmp_key(bio_err, s);
1242#endif
1243}
1244
1245int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
1246 SSL_CTX *ctx)
1247{
1248 int i;
1249
1250 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
1251 for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1252 const char *flag = sk_OPENSSL_STRING_value(str, i);
1253 const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
1254
1255 if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
1256 BIO_printf(bio_err, "Call to SSL_CONF_cmd(%s, %s) failed\n",
1257 flag, arg == NULL ? "<NULL>" : arg);
1258 ERR_print_errors(bio_err);
1259 return 0;
1260 }
1261 }
1262 if (!SSL_CONF_CTX_finish(cctx)) {
1263 BIO_puts(bio_err, "Error finishing context\n");
1264 ERR_print_errors(bio_err);
1265 return 0;
1266 }
1267 return 1;
1268}
1269
1270static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1271{
1272 X509_CRL *crl;
1273 int i, ret = 1;
1274
1275 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
1276 crl = sk_X509_CRL_value(crls, i);
1277 if (!X509_STORE_add_crl(st, crl))
1278 ret = 0;
1279 }
1280 return ret;
1281}
1282
1283int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1284{
1285 X509_STORE *st;
1286
1287 st = SSL_CTX_get_cert_store(ctx);
1288 add_crls_store(st, crls);
1289 if (crl_download)
1290 store_setup_crl_download(st);
1291 return 1;
1292}
1293
1294int ssl_load_stores(SSL_CTX *ctx,
1295 const char *vfyCApath, const char *vfyCAfile,
1296 const char *vfyCAstore,
1297 const char *chCApath, const char *chCAfile,
1298 const char *chCAstore,
1299 STACK_OF(X509_CRL) *crls, int crl_download)
1300{
1301 X509_STORE *vfy = NULL, *ch = NULL;
1302 int rv = 0;
1303
1304 if (vfyCApath != NULL || vfyCAfile != NULL || vfyCAstore != NULL) {
1305 vfy = X509_STORE_new();
1306 if (vfy == NULL)
1307 goto err;
1308 if (vfyCAfile != NULL && !X509_STORE_load_file(vfy, vfyCAfile))
1309 goto err;
1310 if (vfyCApath != NULL && !X509_STORE_load_path(vfy, vfyCApath))
1311 goto err;
1312 if (vfyCAstore != NULL && !X509_STORE_load_store(vfy, vfyCAstore))
1313 goto err;
1314 add_crls_store(vfy, crls);
1315 SSL_CTX_set1_verify_cert_store(ctx, vfy);
1316 if (crl_download)
1317 store_setup_crl_download(vfy);
1318 }
1319 if (chCApath != NULL || chCAfile != NULL || chCAstore != NULL) {
1320 ch = X509_STORE_new();
1321 if (ch == NULL)
1322 goto err;
1323 if (chCAfile != NULL && !X509_STORE_load_file(ch, chCAfile))
1324 goto err;
1325 if (chCApath != NULL && !X509_STORE_load_path(ch, chCApath))
1326 goto err;
1327 if (chCAstore != NULL && !X509_STORE_load_store(ch, chCAstore))
1328 goto err;
1329 SSL_CTX_set1_chain_cert_store(ctx, ch);
1330 }
1331 rv = 1;
1332 err:
1333 X509_STORE_free(vfy);
1334 X509_STORE_free(ch);
1335 return rv;
1336}
1337
1338/* Verbose print out of security callback */
1339
1340typedef struct {
1341 BIO *out;
1342 int verbose;
1343 int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1344 void *other, void *ex);
1345} security_debug_ex;
1346
1347static STRINT_PAIR callback_types[] = {
1348 {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
1349 {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
1350 {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
1351#ifndef OPENSSL_NO_DH
1352 {"Temp DH key bits", SSL_SECOP_TMP_DH},
1353#endif
1354 {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
1355 {"Shared Curve", SSL_SECOP_CURVE_SHARED},
1356 {"Check Curve", SSL_SECOP_CURVE_CHECK},
1357 {"Supported Signature Algorithm", SSL_SECOP_SIGALG_SUPPORTED},
1358 {"Shared Signature Algorithm", SSL_SECOP_SIGALG_SHARED},
1359 {"Check Signature Algorithm", SSL_SECOP_SIGALG_CHECK},
1360 {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
1361 {"Certificate chain EE key", SSL_SECOP_EE_KEY},
1362 {"Certificate chain CA key", SSL_SECOP_CA_KEY},
1363 {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
1364 {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
1365 {"Certificate chain CA digest", SSL_SECOP_CA_MD},
1366 {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
1367 {"SSL compression", SSL_SECOP_COMPRESSION},
1368 {"Session ticket", SSL_SECOP_TICKET},
1369 {NULL}
1370};
1371
1372static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
1373 int op, int bits, int nid,
1374 void *other, void *ex)
1375{
1376 security_debug_ex *sdb = ex;
1377 int rv, show_bits = 1, cert_md = 0;
1378 const char *nm;
1379 int show_nm;
1380
1381 rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
1382 if (rv == 1 && sdb->verbose < 2)
1383 return 1;
1384 BIO_puts(sdb->out, "Security callback: ");
1385
1386 nm = lookup(op, callback_types, NULL);
1387 show_nm = nm != NULL;
1388 switch (op) {
1389 case SSL_SECOP_TICKET:
1390 case SSL_SECOP_COMPRESSION:
1391 show_bits = 0;
1392 show_nm = 0;
1393 break;
1394 case SSL_SECOP_VERSION:
1395 BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1396 show_bits = 0;
1397 show_nm = 0;
1398 break;
1399 case SSL_SECOP_CA_MD:
1400 case SSL_SECOP_PEER_CA_MD:
1401 cert_md = 1;
1402 break;
1403 case SSL_SECOP_SIGALG_SUPPORTED:
1404 case SSL_SECOP_SIGALG_SHARED:
1405 case SSL_SECOP_SIGALG_CHECK:
1406 case SSL_SECOP_SIGALG_MASK:
1407 show_nm = 0;
1408 break;
1409 }
1410 if (show_nm)
1411 BIO_printf(sdb->out, "%s=", nm);
1412
1413 switch (op & SSL_SECOP_OTHER_TYPE) {
1414
1415 case SSL_SECOP_OTHER_CIPHER:
1416 BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
1417 break;
1418
1419#ifndef OPENSSL_NO_EC
1420 case SSL_SECOP_OTHER_CURVE:
1421 {
1422 const char *cname;
1423 cname = EC_curve_nid2nist(nid);
1424 if (cname == NULL)
1425 cname = OBJ_nid2sn(nid);
1426 BIO_puts(sdb->out, cname);
1427 }
1428 break;
1429#endif
1430 case SSL_SECOP_OTHER_CERT:
1431 {
1432 if (cert_md) {
1433 int sig_nid = X509_get_signature_nid(other);
1434
1435 BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
1436 } else {
1437 EVP_PKEY *pkey = X509_get0_pubkey(other);
1438
1439 if (pkey == NULL) {
1440 BIO_printf(sdb->out, "Public key missing");
1441 } else {
1442 const char *algname = "";
1443
1444 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
1445 &algname, EVP_PKEY_get0_asn1(pkey));
1446 BIO_printf(sdb->out, "%s, bits=%d",
1447 algname, EVP_PKEY_get_bits(pkey));
1448 }
1449 }
1450 break;
1451 }
1452 case SSL_SECOP_OTHER_SIGALG:
1453 {
1454 const unsigned char *salg = other;
1455 const char *sname = NULL;
1456 int raw_sig_code = (salg[0] << 8) + salg[1]; /* always big endian (msb, lsb) */
1457 /* raw_sig_code: signature_scheme from tls1.3, or signature_and_hash from tls1.2 */
1458
1459 if (nm != NULL)
1460 BIO_printf(sdb->out, "%s", nm);
1461 else
1462 BIO_printf(sdb->out, "s_cb.c:security_callback_debug op=0x%x", op);
1463
1464 sname = lookup(raw_sig_code, signature_tls13_scheme_list, NULL);
1465 if (sname != NULL) {
1466 BIO_printf(sdb->out, " scheme=%s", sname);
1467 } else {
1468 int alg_code = salg[1];
1469 int hash_code = salg[0];
1470 const char *alg_str = lookup(alg_code, signature_tls12_alg_list, NULL);
1471 const char *hash_str = lookup(hash_code, signature_tls12_hash_list, NULL);
1472
1473 if (alg_str != NULL && hash_str != NULL)
1474 BIO_printf(sdb->out, " digest=%s, algorithm=%s", hash_str, alg_str);
1475 else
1476 BIO_printf(sdb->out, " scheme=unknown(0x%04x)", raw_sig_code);
1477 }
1478 }
1479
1480 }
1481
1482 if (show_bits)
1483 BIO_printf(sdb->out, ", security bits=%d", bits);
1484 BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
1485 return rv;
1486}
1487
1488void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1489{
1490 static security_debug_ex sdb;
1491
1492 sdb.out = bio_err;
1493 sdb.verbose = verbose;
1494 sdb.old_cb = SSL_CTX_get_security_callback(ctx);
1495 SSL_CTX_set_security_callback(ctx, security_callback_debug);
1496 SSL_CTX_set0_security_ex_data(ctx, &sdb);
1497}
1498
1499static void keylog_callback(const SSL *ssl, const char *line)
1500{
1501 if (bio_keylog == NULL) {
1502 BIO_printf(bio_err, "Keylog callback is invoked without valid file!\n");
1503 return;
1504 }
1505
1506 /*
1507 * There might be concurrent writers to the keylog file, so we must ensure
1508 * that the given line is written at once.
1509 */
1510 BIO_printf(bio_keylog, "%s\n", line);
1511 (void)BIO_flush(bio_keylog);
1512}
1513
1514int set_keylog_file(SSL_CTX *ctx, const char *keylog_file)
1515{
1516 /* Close any open files */
1517 BIO_free_all(bio_keylog);
1518 bio_keylog = NULL;
1519
1520 if (ctx == NULL || keylog_file == NULL) {
1521 /* Keylogging is disabled, OK. */
1522 return 0;
1523 }
1524
1525 /*
1526 * Append rather than write in order to allow concurrent modification.
1527 * Furthermore, this preserves existing keylog files which is useful when
1528 * the tool is run multiple times.
1529 */
1530 bio_keylog = BIO_new_file(keylog_file, "a");
1531 if (bio_keylog == NULL) {
1532 BIO_printf(bio_err, "Error writing keylog file %s\n", keylog_file);
1533 return 1;
1534 }
1535
1536 /* Write a header for seekable, empty files (this excludes pipes). */
1537 if (BIO_tell(bio_keylog) == 0) {
1538 BIO_puts(bio_keylog,
1539 "# SSL/TLS secrets log file, generated by OpenSSL\n");
1540 (void)BIO_flush(bio_keylog);
1541 }
1542 SSL_CTX_set_keylog_callback(ctx, keylog_callback);
1543 return 0;
1544}
1545
1546void print_ca_names(BIO *bio, SSL *s)
1547{
1548 const char *cs = SSL_is_server(s) ? "server" : "client";
1549 const STACK_OF(X509_NAME) *sk = SSL_get0_peer_CA_list(s);
1550 int i;
1551
1552 if (sk == NULL || sk_X509_NAME_num(sk) == 0) {
1553 if (!SSL_is_server(s))
1554 BIO_printf(bio, "---\nNo %s certificate CA names sent\n", cs);
1555 return;
1556 }
1557
1558 BIO_printf(bio, "---\nAcceptable %s certificate CA names\n",cs);
1559 for (i = 0; i < sk_X509_NAME_num(sk); i++) {
1560 X509_NAME_print_ex(bio, sk_X509_NAME_value(sk, i), 0, get_nameopt());
1561 BIO_write(bio, "\n", 1);
1562 }
1563}
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