s_cb.c 39.2 KB
Newer Older
R
Rich Salz 已提交
1 2
/*
 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3
 *
R
Rich Salz 已提交
4 5 6 7
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
8
 */
9

10
/* callback functions used by s_client, s_server, and s_time */
11 12
#include <stdio.h>
#include <stdlib.h>
13
#include <string.h> /* for memcpy() and strcmp() */
14 15 16
#define USE_SOCKETS
#include "apps.h"
#undef USE_SOCKETS
17
#include <openssl/err.h>
D
Dr. Stephen Henson 已提交
18
#include <openssl/rand.h>
19 20
#include <openssl/x509.h>
#include <openssl/ssl.h>
21 22
#include <openssl/bn.h>
#ifndef OPENSSL_NO_DH
23
# include <openssl/dh.h>
24
#endif
25 26
#include "s_apps.h"

27
#define COOKIE_SECRET_LENGTH    16
D
Dr. Stephen Henson 已提交
28

29 30
VERIFY_CB_ARGS verify_args = { 0, 0, X509_V_OK, 0 };

M
Matt Caswell 已提交
31
#ifndef OPENSSL_NO_SOCK
32 33
static unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
static int cookie_initialized = 0;
M
Matt Caswell 已提交
34
#endif
35

36 37 38 39 40 41 42 43
static const char *lookup(int val, const STRINT_PAIR* list, const char* def)
{
    for ( ; list->name; ++list)
        if (list->retval == val)
            return list->name;
    return def;
}

R
Rich Salz 已提交
44
int verify_callback(int ok, X509_STORE_CTX *ctx)
45 46 47 48 49 50 51 52
{
    X509 *err_cert;
    int err, depth;

    err_cert = X509_STORE_CTX_get_current_cert(ctx);
    err = X509_STORE_CTX_get_error(ctx);
    depth = X509_STORE_CTX_get_error_depth(ctx);

53
    if (!verify_args.quiet || !ok) {
54 55 56 57 58 59 60 61 62 63 64 65
        BIO_printf(bio_err, "depth=%d ", depth);
        if (err_cert) {
            X509_NAME_print_ex(bio_err,
                               X509_get_subject_name(err_cert),
                               0, XN_FLAG_ONELINE);
            BIO_puts(bio_err, "\n");
        } else
            BIO_puts(bio_err, "<no cert>\n");
    }
    if (!ok) {
        BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
                   X509_verify_cert_error_string(err));
66 67
        if (verify_args.depth >= depth) {
            if (!verify_args.return_error)
68
                ok = 1;
69
            verify_args.error = err;
70 71
        } else {
            ok = 0;
72
            verify_args.error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94
        }
    }
    switch (err) {
    case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
        BIO_puts(bio_err, "issuer= ");
        X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
                           0, XN_FLAG_ONELINE);
        BIO_puts(bio_err, "\n");
        break;
    case X509_V_ERR_CERT_NOT_YET_VALID:
    case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
        BIO_printf(bio_err, "notBefore=");
        ASN1_TIME_print(bio_err, X509_get_notBefore(err_cert));
        BIO_printf(bio_err, "\n");
        break;
    case X509_V_ERR_CERT_HAS_EXPIRED:
    case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
        BIO_printf(bio_err, "notAfter=");
        ASN1_TIME_print(bio_err, X509_get_notAfter(err_cert));
        BIO_printf(bio_err, "\n");
        break;
    case X509_V_ERR_NO_EXPLICIT_POLICY:
95
        if (!verify_args.quiet)
R
Rich Salz 已提交
96
            policies_print(ctx);
97 98
        break;
    }
99
    if (err == X509_V_OK && ok == 2 && !verify_args.quiet)
R
Rich Salz 已提交
100
        policies_print(ctx);
101
    if (ok && !verify_args.quiet)
102 103 104
        BIO_printf(bio_err, "verify return:%d\n", ok);
    return (ok);
}
105

U
Ulf Möller 已提交
106
int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141
{
    if (cert_file != NULL) {
        if (SSL_CTX_use_certificate_file(ctx, cert_file,
                                         SSL_FILETYPE_PEM) <= 0) {
            BIO_printf(bio_err, "unable to get certificate from '%s'\n",
                       cert_file);
            ERR_print_errors(bio_err);
            return (0);
        }
        if (key_file == NULL)
            key_file = cert_file;
        if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
            BIO_printf(bio_err, "unable to get private key from '%s'\n",
                       key_file);
            ERR_print_errors(bio_err);
            return (0);
        }

        /*
         * If we are using DSA, we can copy the parameters from the private
         * key
         */

        /*
         * Now we know that a key and cert have been set against the SSL
         * context
         */
        if (!SSL_CTX_check_private_key(ctx)) {
            BIO_printf(bio_err,
                       "Private key does not match the certificate public key\n");
            return (0);
        }
    }
    return (1);
}
142

143
int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180
                       STACK_OF(X509) *chain, int build_chain)
{
    int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
    if (cert == NULL)
        return 1;
    if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
        BIO_printf(bio_err, "error setting certificate\n");
        ERR_print_errors(bio_err);
        return 0;
    }

    if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
        BIO_printf(bio_err, "error setting private key\n");
        ERR_print_errors(bio_err);
        return 0;
    }

    /*
     * Now we know that a key and cert have been set against the SSL context
     */
    if (!SSL_CTX_check_private_key(ctx)) {
        BIO_printf(bio_err,
                   "Private key does not match the certificate public key\n");
        return 0;
    }
    if (chain && !SSL_CTX_set1_chain(ctx, chain)) {
        BIO_printf(bio_err, "error setting certificate chain\n");
        ERR_print_errors(bio_err);
        return 0;
    }
    if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) {
        BIO_printf(bio_err, "error building certificate chain\n");
        ERR_print_errors(bio_err);
        return 0;
    }
    return 1;
}
D
PR: 910  
Dr. Stephen Henson 已提交
181

182 183 184 185 186 187 188 189 190 191 192 193
static STRINT_PAIR cert_type_list[] = {
    {"RSA sign", TLS_CT_RSA_SIGN},
    {"DSA sign", TLS_CT_DSS_SIGN},
    {"RSA fixed DH", TLS_CT_RSA_FIXED_DH},
    {"DSS fixed DH", TLS_CT_DSS_FIXED_DH},
    {"ECDSA sign", TLS_CT_ECDSA_SIGN},
    {"RSA fixed ECDH", TLS_CT_RSA_FIXED_ECDH},
    {"ECDSA fixed ECDH", TLS_CT_ECDSA_FIXED_ECDH},
    {"GOST01 Sign", TLS_CT_GOST01_SIGN},
    {NULL}
};

194
static void ssl_print_client_cert_types(BIO *bio, SSL *s)
195 196 197 198 199 200 201 202 203
{
    const unsigned char *p;
    int i;
    int cert_type_num = SSL_get0_certificate_types(s, &p);
    if (!cert_type_num)
        return;
    BIO_puts(bio, "Client Certificate Types: ");
    for (i = 0; i < cert_type_num; i++) {
        unsigned char cert_type = p[i];
204
        const char *cname = lookup((int)cert_type, cert_type_list, NULL);
205 206 207 208 209 210 211 212 213 214

        if (i)
            BIO_puts(bio, ", ");
        if (cname)
            BIO_puts(bio, cname);
        else
            BIO_printf(bio, "UNKNOWN (%d),", cert_type);
    }
    BIO_puts(bio, "\n");
}
215 216

static int do_print_sigalgs(BIO *out, SSL *s, int shared)
217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261
{
    int i, nsig, client;
    client = SSL_is_server(s) ? 0 : 1;
    if (shared)
        nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
    else
        nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
    if (nsig == 0)
        return 1;

    if (shared)
        BIO_puts(out, "Shared ");

    if (client)
        BIO_puts(out, "Requested ");
    BIO_puts(out, "Signature Algorithms: ");
    for (i = 0; i < nsig; i++) {
        int hash_nid, sign_nid;
        unsigned char rhash, rsign;
        const char *sstr = NULL;
        if (shared)
            SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
                                   &rsign, &rhash);
        else
            SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
        if (i)
            BIO_puts(out, ":");
        if (sign_nid == EVP_PKEY_RSA)
            sstr = "RSA";
        else if (sign_nid == EVP_PKEY_DSA)
            sstr = "DSA";
        else if (sign_nid == EVP_PKEY_EC)
            sstr = "ECDSA";
        if (sstr)
            BIO_printf(out, "%s+", sstr);
        else
            BIO_printf(out, "0x%02X+", (int)rsign);
        if (hash_nid != NID_undef)
            BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
        else
            BIO_printf(out, "0x%02X", (int)rhash);
    }
    BIO_puts(out, "\n");
    return 1;
}
262

263
int ssl_print_sigalgs(BIO *out, SSL *s)
264 265 266 267 268 269 270 271 272 273 274
{
    int mdnid;
    if (!SSL_is_server(s))
        ssl_print_client_cert_types(out, s);
    do_print_sigalgs(out, s, 0);
    do_print_sigalgs(out, s, 1);
    if (SSL_get_peer_signature_nid(s, &mdnid))
        BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
    return 1;
}

275
#ifndef OPENSSL_NO_EC
276
int ssl_print_point_formats(BIO *out, SSL *s)
277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308
{
    int i, nformats;
    const char *pformats;
    nformats = SSL_get0_ec_point_formats(s, &pformats);
    if (nformats <= 0)
        return 1;
    BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
    for (i = 0; i < nformats; i++, pformats++) {
        if (i)
            BIO_puts(out, ":");
        switch (*pformats) {
        case TLSEXT_ECPOINTFORMAT_uncompressed:
            BIO_puts(out, "uncompressed");
            break;

        case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
            BIO_puts(out, "ansiX962_compressed_prime");
            break;

        case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
            BIO_puts(out, "ansiX962_compressed_char2");
            break;

        default:
            BIO_printf(out, "unknown(%d)", (int)*pformats);
            break;

        }
    }
    BIO_puts(out, "\n");
    return 1;
}
309

310
int ssl_print_curves(BIO *out, SSL *s, int noshared)
311 312 313
{
    int i, ncurves, *curves, nid;
    const char *cname;
314

315 316 317
    ncurves = SSL_get1_curves(s, NULL);
    if (ncurves <= 0)
        return 1;
R
Rich Salz 已提交
318
    curves = app_malloc(ncurves * sizeof(int), "curves to print");
319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357
    SSL_get1_curves(s, curves);

    BIO_puts(out, "Supported Elliptic Curves: ");
    for (i = 0; i < ncurves; i++) {
        if (i)
            BIO_puts(out, ":");
        nid = curves[i];
        /* If unrecognised print out hex version */
        if (nid & TLSEXT_nid_unknown)
            BIO_printf(out, "0x%04X", nid & 0xFFFF);
        else {
            /* Use NIST name for curve if it exists */
            cname = EC_curve_nid2nist(nid);
            if (!cname)
                cname = OBJ_nid2sn(nid);
            BIO_printf(out, "%s", cname);
        }
    }
    OPENSSL_free(curves);
    if (noshared) {
        BIO_puts(out, "\n");
        return 1;
    }
    BIO_puts(out, "\nShared Elliptic curves: ");
    ncurves = SSL_get_shared_curve(s, -1);
    for (i = 0; i < ncurves; i++) {
        if (i)
            BIO_puts(out, ":");
        nid = SSL_get_shared_curve(s, i);
        cname = EC_curve_nid2nist(nid);
        if (!cname)
            cname = OBJ_nid2sn(nid);
        BIO_printf(out, "%s", cname);
    }
    if (ncurves == 0)
        BIO_puts(out, "NONE");
    BIO_puts(out, "\n");
    return 1;
}
358
#endif
359
int ssl_print_tmp_key(BIO *out, SSL *s)
360 361 362 363 364 365 366 367 368 369 370 371 372
{
    EVP_PKEY *key;
    if (!SSL_get_server_tmp_key(s, &key))
        return 1;
    BIO_puts(out, "Server Temp Key: ");
    switch (EVP_PKEY_id(key)) {
    case EVP_PKEY_RSA:
        BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
        break;

    case EVP_PKEY_DH:
        BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
        break;
373
#ifndef OPENSSL_NO_EC
374 375 376 377 378 379 380 381 382 383 384 385
    case EVP_PKEY_EC:
        {
            EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
            int nid;
            const char *cname;
            nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
            EC_KEY_free(ec);
            cname = EC_curve_nid2nist(nid);
            if (!cname)
                cname = OBJ_nid2sn(nid);
            BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
        }
386
    break;
387
#endif
388 389 390
    default:
        BIO_printf(out, "%s, %d bits\n", OBJ_nid2sn(EVP_PKEY_id(key)),
                   EVP_PKEY_bits(key));
391 392 393 394
    }
    EVP_PKEY_free(key);
    return 1;
}
395

R
Rich Salz 已提交
396
long bio_dump_callback(BIO *bio, int cmd, const char *argp,
397 398 399 400 401 402 403 404 405 406
                       int argi, long argl, long ret)
{
    BIO *out;

    out = (BIO *)BIO_get_callback_arg(bio);
    if (out == NULL)
        return (ret);

    if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
        BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
407
                   (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
408 409 410 411
        BIO_dump(out, argp, (int)ret);
        return (ret);
    } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
        BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
412
                   (void *)bio, (void *)argp, (unsigned long)argi, ret, ret);
413 414 415 416
        BIO_dump(out, argp, (int)ret);
    }
    return (ret);
}
417

R
Rich Salz 已提交
418
void apps_ssl_info_callback(const SSL *s, int where, int ret)
419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449
{
    const char *str;
    int w;

    w = where & ~SSL_ST_MASK;

    if (w & SSL_ST_CONNECT)
        str = "SSL_connect";
    else if (w & SSL_ST_ACCEPT)
        str = "SSL_accept";
    else
        str = "undefined";

    if (where & SSL_CB_LOOP) {
        BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
    } else if (where & SSL_CB_ALERT) {
        str = (where & SSL_CB_READ) ? "read" : "write";
        BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
                   str,
                   SSL_alert_type_string_long(ret),
                   SSL_alert_desc_string_long(ret));
    } else if (where & SSL_CB_EXIT) {
        if (ret == 0)
            BIO_printf(bio_err, "%s:failed in %s\n",
                       str, SSL_state_string_long(s));
        else if (ret < 0) {
            BIO_printf(bio_err, "%s:error in %s\n",
                       str, SSL_state_string_long(s));
        }
    }
}
450

451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497
static STRINT_PAIR ssl_versions[] = {
    {"SSL 3.0", SSL3_VERSION},
    {"TLS 1.0", TLS1_VERSION},
    {"TLS 1.1", TLS1_1_VERSION},
    {"TLS 1.2", TLS1_2_VERSION},
    {"DTLS 1.0", DTLS1_VERSION},
    {"DTLS 1.0 (bad)", DTLS1_BAD_VER},
    {NULL}
};
static STRINT_PAIR alert_types[] = {
    {" close_notify", 0},
    {" unexpected_message", 10},
    {" bad_record_mac", 20},
    {" decryption_failed", 21},
    {" record_overflow", 22},
    {" decompression_failure", 30},
    {" handshake_failure", 40},
    {" bad_certificate", 42},
    {" unsupported_certificate", 43},
    {" certificate_revoked", 44},
    {" certificate_expired", 45},
    {" certificate_unknown", 46},
    {" illegal_parameter", 47},
    {" unknown_ca", 48},
    {" access_denied", 49},
    {" decode_error", 50},
    {" decrypt_error", 51},
    {" export_restriction", 60},
    {" protocol_version", 70},
    {" insufficient_security", 71},
    {" internal_error", 80},
    {" user_canceled", 90},
    {" no_renegotiation", 100},
    {" unsupported_extension", 110},
    {" certificate_unobtainable", 111},
    {" unrecognized_name", 112},
    {" bad_certificate_status_response", 113},
    {" bad_certificate_hash_value", 114},
    {" unknown_psk_identity", 115},
    {NULL}
};

static STRINT_PAIR handshakes[] = {
    {", HelloRequest", 0},
    {", ClientHello", 1},
    {", ServerHello", 2},
    {", HelloVerifyRequest", 3},
498
    {", NewSessionTicket", 4},
499 500 501 502 503 504 505
    {", Certificate", 11},
    {", ServerKeyExchange", 12},
    {", CertificateRequest", 13},
    {", ServerHelloDone", 14},
    {", CertificateVerify", 15},
    {", ClientKeyExchange", 16},
    {", Finished", 20},
506 507 508
    {", CertificateUrl", 21},
    {", CertificateStatus", 22},
    {", SupplementalData", 23},
509 510
    {NULL}
};
511 512 513 514 515

void msg_cb(int write_p, int version, int content_type, const void *buf,
            size_t len, SSL *ssl, void *arg)
{
    BIO *bio = arg;
516 517 518 519
    const char *str_write_p = write_p ? ">>>" : "<<<";
    const char *str_version = lookup(version, ssl_versions, "???");
    const char *str_content_type = "", *str_details1 = "", *str_details2 = "";
    const unsigned char* bp = buf;
520 521 522 523 524 525 526 527 528 529 530 531 532 533

    if (version == SSL3_VERSION ||
        version == TLS1_VERSION ||
        version == TLS1_1_VERSION ||
        version == TLS1_2_VERSION ||
        version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
        switch (content_type) {
        case 20:
            str_content_type = "ChangeCipherSpec";
            break;
        case 21:
            str_content_type = "Alert";
            str_details1 = ", ???";
            if (len == 2) {
534
                switch (bp[0]) {
535 536 537 538 539 540 541
                case 1:
                    str_details1 = ", warning";
                    break;
                case 2:
                    str_details1 = ", fatal";
                    break;
                }
542
                str_details2 = lookup((int)bp[1], alert_types, " ???");
543
            }
544 545 546
            break;
        case 22:
            str_content_type = "Handshake";
547
            str_details1 = "???";
548 549 550
            if (len > 0)
                str_details1 = lookup((int)bp[0], handshakes, "???");
            break;
551 552 553
        case 23:
            str_content_type = "ApplicationData";
            break;
D
Dr. Stephen Henson 已提交
554
#ifndef OPENSSL_NO_HEARTBEATS
555
        case 24:
556 557 558
            str_details1 = ", Heartbeat";

            if (len > 0) {
559
                switch (bp[0]) {
560 561 562 563 564 565 566 567
                case 1:
                    str_details1 = ", HeartbeatRequest";
                    break;
                case 2:
                    str_details1 = ", HeartbeatResponse";
                    break;
                }
            }
568
            break;
D
Dr. Stephen Henson 已提交
569
#endif
570
        }
571
    }
572

573 574 575
    BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
               str_content_type, (unsigned long)len, str_details1,
               str_details2);
576

577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592
    if (len > 0) {
        size_t num, i;

        BIO_printf(bio, "   ");
        num = len;
        for (i = 0; i < num; i++) {
            if (i % 16 == 0 && i > 0)
                BIO_printf(bio, "\n   ");
            BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
        }
        if (i < len)
            BIO_printf(bio, " ...");
        BIO_printf(bio, "\n");
    }
    (void)BIO_flush(bio);
}
593

594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612
static STRINT_PAIR tlsext_types[] = {
    {"server name", TLSEXT_TYPE_server_name},
    {"max fragment length", TLSEXT_TYPE_max_fragment_length},
    {"client certificate URL", TLSEXT_TYPE_client_certificate_url},
    {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys},
    {"truncated HMAC", TLSEXT_TYPE_truncated_hmac},
    {"status request", TLSEXT_TYPE_status_request},
    {"user mapping", TLSEXT_TYPE_user_mapping},
    {"client authz", TLSEXT_TYPE_client_authz},
    {"server authz", TLSEXT_TYPE_server_authz},
    {"cert type", TLSEXT_TYPE_cert_type},
    {"elliptic curves", TLSEXT_TYPE_elliptic_curves},
    {"EC point formats", TLSEXT_TYPE_ec_point_formats},
    {"SRP", TLSEXT_TYPE_srp},
    {"signature algorithms", TLSEXT_TYPE_signature_algorithms},
    {"use SRTP", TLSEXT_TYPE_use_srtp},
    {"heartbeat", TLSEXT_TYPE_heartbeat},
    {"session ticket", TLSEXT_TYPE_session_ticket},
    {"renegotiation info", TLSEXT_TYPE_renegotiate},
613
    {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp},
614
    {"TLS padding", TLSEXT_TYPE_padding},
615
#ifdef TLSEXT_TYPE_next_proto_neg
616
    {"next protocol", TLSEXT_TYPE_next_proto_neg},
617
#endif
618
#ifdef TLSEXT_TYPE_encrypt_then_mac
619
    {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac},
620
#endif
621 622 623
#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
    {"application layer protocol negotiation",
     TLSEXT_TYPE_application_layer_protocol_negotiation},
624 625 626
#endif
#ifdef TLSEXT_TYPE_extended_master_secret
    {"extended master secret", TLSEXT_TYPE_extended_master_secret},
627
#endif
628 629
    {NULL}
};
630

631
void tlsext_cb(SSL *s, int client_server, int type,
E
Emilia Kasper 已提交
632
               const unsigned char *data, int len, void *arg)
633 634 635
{
    BIO *bio = arg;
    const char *extname = lookup(type, tlsext_types, "unknown");
636 637 638

    BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
               client_server ? "server" : "client", extname, type, len);
E
Emilia Kasper 已提交
639
    BIO_dump(bio, (const char *)data, len);
640 641 642
    (void)BIO_flush(bio);
}

M
Matt Caswell 已提交
643
#ifndef OPENSSL_NO_SOCK
644 645 646
int generate_cookie_callback(SSL *ssl, unsigned char *cookie,
                             unsigned int *cookie_len)
{
647
    unsigned char *buffer;
648 649 650
    size_t length;
    unsigned short port;
    BIO_ADDR *peer = NULL;
651 652 653

    /* Initialize a random secret */
    if (!cookie_initialized) {
M
Matt Caswell 已提交
654
        if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) {
655 656 657 658 659 660
            BIO_printf(bio_err, "error setting random cookie secret\n");
            return 0;
        }
        cookie_initialized = 1;
    }

661 662 663 664 665 666
    peer = BIO_ADDR_new();
    if (peer == NULL) {
        BIO_printf(bio_err, "memory full\n");
        return 0;
    }

667
    /* Read peer information */
668
    (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer);
669 670

    /* Create buffer with peer's address and port */
671 672 673 674
    BIO_ADDR_rawaddress(peer, NULL, &length);
    OPENSSL_assert(length != 0);
    port = BIO_ADDR_rawport(peer);
    length += sizeof(port);
R
Rich Salz 已提交
675
    buffer = app_malloc(length, "cookie generate buffer");
676

677 678
    memcpy(buffer, &port, sizeof(port));
    BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL);
679 680 681

    /* Calculate HMAC of buffer using the secret */
    HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
682
         buffer, length, cookie, cookie_len);
683

684
    OPENSSL_free(buffer);
685
    BIO_ADDR_free(peer);
686 687 688 689

    return 1;
}

E
Emilia Kasper 已提交
690
int verify_cookie_callback(SSL *ssl, const unsigned char *cookie,
691 692
                           unsigned int cookie_len)
{
693 694 695 696 697 698 699 700
    unsigned char result[EVP_MAX_MD_SIZE];
    unsigned int resultlength;

    /* Note: we check cookie_initialized because if it's not,
     * it cannot be valid */
    if (cookie_initialized
        && generate_cookie_callback(ssl, result, &resultlength)
        && cookie_len == resultlength
701 702 703 704 705
        && memcmp(result, cookie, resultlength) == 0)
        return 1;

    return 0;
}
M
Matt Caswell 已提交
706
#endif
707 708 709 710 711 712

/*
 * Example of extended certificate handling. Where the standard support of
 * one certificate per algorithm is not sufficient an application can decide
 * which certificate(s) to use at runtime based on whatever criteria it deems
 * appropriate.
713 714 715
 */

/* Linked list of certificates, keys and chains */
716 717 718 719 720 721 722 723 724 725 726 727 728
struct ssl_excert_st {
    int certform;
    const char *certfile;
    int keyform;
    const char *keyfile;
    const char *chainfile;
    X509 *cert;
    EVP_PKEY *key;
    STACK_OF(X509) *chain;
    int build_chain;
    struct ssl_excert_st *next, *prev;
};

729 730 731 732 733 734 735
static STRINT_PAIR chain_flags[] = {
    {"Overall Validity", CERT_PKEY_VALID},
    {"Sign with EE key", CERT_PKEY_SIGN},
    {"EE signature", CERT_PKEY_EE_SIGNATURE},
    {"CA signature", CERT_PKEY_CA_SIGNATURE},
    {"EE key parameters", CERT_PKEY_EE_PARAM},
    {"CA key parameters", CERT_PKEY_CA_PARAM},
F
FdaSilvaYY 已提交
736
    {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN},
737 738 739
    {"Issuer Name", CERT_PKEY_ISSUER_NAME},
    {"Certificate Type", CERT_PKEY_CERT_TYPE},
    {NULL}
740
};
741

R
Rich Salz 已提交
742
static void print_chain_flags(SSL *s, int flags)
743
{
744
    STRINT_PAIR *pp;
R
Rich Salz 已提交
745

746 747 748 749
    for (pp = chain_flags; pp->name; ++pp)
        BIO_printf(bio_err, "\t%s: %s\n",
                   pp->name,
                   (flags & pp->retval) ? "OK" : "NOT OK");
R
Rich Salz 已提交
750
    BIO_printf(bio_err, "\tSuite B: ");
751
    if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
R
Rich Salz 已提交
752
        BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
753
    else
R
Rich Salz 已提交
754
        BIO_printf(bio_err, "not tested\n");
755 756 757 758 759
}

/*
 * Very basic selection callback: just use any certificate chain reported as
 * valid. More sophisticated could prioritise according to local policy.
760 761
 */
static int set_cert_cb(SSL *ssl, void *arg)
762 763 764
{
    int i, rv;
    SSL_EXCERT *exc = arg;
765
#ifdef CERT_CB_TEST_RETRY
766 767 768
    static int retry_cnt;
    if (retry_cnt < 5) {
        retry_cnt++;
R
Rich Salz 已提交
769 770 771
        BIO_printf(bio_err,
                   "Certificate callback retry test: count %d\n",
                   retry_cnt);
772 773
        return -1;
    }
774
#endif
775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795
    SSL_certs_clear(ssl);

    if (!exc)
        return 1;

    /*
     * Go to end of list and traverse backwards since we prepend newer
     * entries this retains the original order.
     */
    while (exc->next)
        exc = exc->next;

    i = 0;

    while (exc) {
        i++;
        rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
        BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
        X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
                           XN_FLAG_ONELINE);
        BIO_puts(bio_err, "\n");
R
Rich Salz 已提交
796
        print_chain_flags(ssl, rv);
797
        if (rv & CERT_PKEY_VALID) {
V
Viktor Dukhovni 已提交
798
            if (!SSL_use_certificate(ssl, exc->cert)
799
                    || !SSL_use_PrivateKey(ssl, exc->key)) {
M
Matt Caswell 已提交
800 801
                return 0;
            }
802 803 804 805 806 807 808 809 810 811 812 813 814 815 816
            /*
             * NB: we wouldn't normally do this as it is not efficient
             * building chains on each connection better to cache the chain
             * in advance.
             */
            if (exc->build_chain) {
                if (!SSL_build_cert_chain(ssl, 0))
                    return 0;
            } else if (exc->chain)
                SSL_set1_chain(ssl, exc->chain);
        }
        exc = exc->prev;
    }
    return 1;
}
817 818

void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
819 820 821
{
    SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
}
822 823

static int ssl_excert_prepend(SSL_EXCERT **pexc)
824
{
R
Rich Salz 已提交
825
    SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert");
R
Rich Salz 已提交
826

R
Rich Salz 已提交
827
    memset(exc, 0, sizeof(*exc));
828 829 830 831 832 833 834 835 836 837 838 839 840 841 842

    exc->next = *pexc;
    *pexc = exc;

    if (exc->next) {
        exc->certform = exc->next->certform;
        exc->keyform = exc->next->keyform;
        exc->next->prev = exc;
    } else {
        exc->certform = FORMAT_PEM;
        exc->keyform = FORMAT_PEM;
    }
    return 1;

}
843 844

void ssl_excert_free(SSL_EXCERT *exc)
845 846
{
    SSL_EXCERT *curr;
R
Rich Salz 已提交
847 848 849

    if (!exc)
        return;
850
    while (exc) {
R
Rich Salz 已提交
851
        X509_free(exc->cert);
R
Rich Salz 已提交
852
        EVP_PKEY_free(exc->key);
R
Rich Salz 已提交
853
        sk_X509_pop_free(exc->chain, X509_free);
854 855 856 857 858
        curr = exc;
        exc = exc->next;
        OPENSSL_free(curr);
    }
}
859

860
int load_excert(SSL_EXCERT **pexc)
861 862 863 864 865 866 867 868 869 870 871 872
{
    SSL_EXCERT *exc = *pexc;
    if (!exc)
        return 1;
    /* If nothing in list, free and set to NULL */
    if (!exc->certfile && !exc->next) {
        ssl_excert_free(exc);
        *pexc = NULL;
        return 1;
    }
    for (; exc; exc = exc->next) {
        if (!exc->certfile) {
873
            BIO_printf(bio_err, "Missing filename\n");
874 875
            return 0;
        }
876
        exc->cert = load_cert(exc->certfile, exc->certform,
877
                              "Server Certificate");
878 879 880
        if (!exc->cert)
            return 0;
        if (exc->keyfile) {
881
            exc->key = load_key(exc->keyfile, exc->keyform,
882 883
                                0, NULL, NULL, "Server Key");
        } else {
884
            exc->key = load_key(exc->certfile, exc->certform,
885 886 887 888 889
                                0, NULL, NULL, "Server Key");
        }
        if (!exc->key)
            return 0;
        if (exc->chainfile) {
890
            if (!load_certs(exc->chainfile, &exc->chain, FORMAT_PEM, NULL,
891
                            "Server Chain"))
892 893 894 895 896
                return 0;
        }
    }
    return 1;
}
897

898 899 900
enum range { OPT_X_ENUM };

int args_excert(int opt, SSL_EXCERT **pexc)
901 902
{
    SSL_EXCERT *exc = *pexc;
903 904 905 906 907 908 909 910

    assert(opt > OPT_X__FIRST);
    assert(opt < OPT_X__LAST);

    if (exc == NULL) {
        if (!ssl_excert_prepend(&exc)) {
            BIO_printf(bio_err, " %s: Error initialising xcert\n",
                       opt_getprog());
911 912
            goto err;
        }
913
        *pexc = exc;
914
    }
915 916 917 918 919 920

    switch ((enum range)opt) {
    case OPT_X__FIRST:
    case OPT_X__LAST:
        return 0;
    case OPT_X_CERT:
921
        if (exc->certfile && !ssl_excert_prepend(&exc)) {
922
            BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog());
923 924
            goto err;
        }
925 926 927
        exc->certfile = opt_arg();
        break;
    case OPT_X_KEY:
928
        if (exc->keyfile) {
929
            BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog());
930 931
            goto err;
        }
932 933 934 935 936 937
        exc->keyfile = opt_arg();
        break;
    case OPT_X_CHAIN:
        if (exc->chainfile) {
            BIO_printf(bio_err, "%s: Chain already specified\n",
                       opt_getprog());
938 939
            goto err;
        }
940 941 942 943 944 945 946 947 948 949 950 951 952 953
        exc->chainfile = opt_arg();
        break;
    case OPT_X_CHAIN_BUILD:
        exc->build_chain = 1;
        break;
    case OPT_X_CERTFORM:
        if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->certform))
            return 0;
        break;
    case OPT_X_KEYFORM:
        if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->keyform))
            return 0;
        break;
    }
954 955 956
    return 1;

 err:
957
    ERR_print_errors(bio_err);
R
Rich Salz 已提交
958
    ssl_excert_free(exc);
959
    *pexc = NULL;
960
    return 0;
961
}
962

R
Rich Salz 已提交
963
static void print_raw_cipherlist(SSL *s)
964 965
{
    const unsigned char *rlist;
966
    static const unsigned char scsv_id[] = { 0, 0xFF };
967 968 969 970
    size_t i, rlistlen, num;
    if (!SSL_is_server(s))
        return;
    num = SSL_get0_raw_cipherlist(s, NULL);
971
    OPENSSL_assert(num == 2);
972
    rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
R
Rich Salz 已提交
973
    BIO_puts(bio_err, "Client cipher list: ");
974 975 976
    for (i = 0; i < rlistlen; i += num, rlist += num) {
        const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
        if (i)
R
Rich Salz 已提交
977
            BIO_puts(bio_err, ":");
978
        if (c)
R
Rich Salz 已提交
979
            BIO_puts(bio_err, SSL_CIPHER_get_name(c));
980
        else if (!memcmp(rlist, scsv_id, num))
R
Rich Salz 已提交
981
            BIO_puts(bio_err, "SCSV");
982 983
        else {
            size_t j;
R
Rich Salz 已提交
984
            BIO_puts(bio_err, "0x");
985
            for (j = 0; j < num; j++)
R
Rich Salz 已提交
986
                BIO_printf(bio_err, "%02X", rlist[j]);
987 988
        }
    }
R
Rich Salz 已提交
989
    BIO_puts(bio_err, "\n");
990
}
991

992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009
/*
 * Hex encoder for TLSA RRdata, not ':' delimited.
 */
static char *hexencode(const unsigned char *data, size_t len)
{
    static const char *hex = "0123456789abcdef";
    char *out;
    char *cp;
    size_t outlen = 2 * len + 1;
    int ilen = (int) outlen;

    if (outlen < len || ilen < 0 || outlen != (size_t)ilen) {
        BIO_printf(bio_err, "%s: %" PRIu64 "-byte buffer too large to hexencode\n",
                   opt_getprog(), (uint64_t)len);
        exit(1);
    }
    cp = out = app_malloc(ilen, "TLSA hex data buffer");

1010
    while (len-- > 0) {
1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065
        *cp++ = hex[(*data >> 4) & 0x0f];
        *cp++ = hex[*data++ & 0x0f];
    }
    *cp = '\0';
    return out;
}

void print_verify_detail(SSL *s, BIO *bio)
{
    int mdpth;
    EVP_PKEY *mspki;
    long verify_err = SSL_get_verify_result(s);

    if (verify_err == X509_V_OK) {
        const char *peername = SSL_get0_peername(s);

        BIO_printf(bio, "Verification: OK\n");
        if (peername != NULL)
            BIO_printf(bio, "Verified peername: %s\n", peername);
    } else {
        const char *reason = X509_verify_cert_error_string(verify_err);

        BIO_printf(bio, "Verification error: %s\n", reason);
    }

    if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) {
        uint8_t usage, selector, mtype;
        const unsigned char *data = NULL;
        size_t dlen = 0;
        char *hexdata;

        mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen);

        /*
         * The TLSA data field can be quite long when it is a certificate,
         * public key or even a SHA2-512 digest.  Because the initial octets of
         * ASN.1 certificates and public keys contain mostly boilerplate OIDs
         * and lengths, we show the last 12 bytes of the data instead, as these
         * are more likely to distinguish distinct TLSA records.
         */
#define TLSA_TAIL_SIZE 12
        if (dlen > TLSA_TAIL_SIZE)
            hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE);
        else
            hexdata = hexencode(data, dlen);
        BIO_printf(bio, "DANE TLSA %d %d %d %s%s %s at depth %d\n",
                   usage, selector, mtype,
                   (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata,
                   (mspki != NULL) ? "signed the certificate" :
                   mdpth ? "matched TA certificate" : "matched EE certificate",
                   mdpth);
        OPENSSL_free(hexdata);
    }
}

R
Rich Salz 已提交
1066
void print_ssl_summary(SSL *s)
1067 1068 1069
{
    const SSL_CIPHER *c;
    X509 *peer;
R
Rich Salz 已提交
1070 1071 1072 1073
    /* const char *pnam = SSL_is_server(s) ? "client" : "server"; */

    BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s));
    print_raw_cipherlist(s);
1074
    c = SSL_get_current_cipher(s);
R
Rich Salz 已提交
1075 1076
    BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
    do_print_sigalgs(bio_err, s, 0);
1077 1078 1079
    peer = SSL_get_peer_certificate(s);
    if (peer) {
        int nid;
1080

R
Rich Salz 已提交
1081 1082
        BIO_puts(bio_err, "Peer certificate: ");
        X509_NAME_print_ex(bio_err, X509_get_subject_name(peer),
1083
                           0, XN_FLAG_ONELINE);
R
Rich Salz 已提交
1084
        BIO_puts(bio_err, "\n");
1085
        if (SSL_get_peer_signature_nid(s, &nid))
R
Rich Salz 已提交
1086
            BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid));
1087
        print_verify_detail(s, bio_err);
1088
    } else
R
Rich Salz 已提交
1089
        BIO_puts(bio_err, "No peer certificate\n");
R
Rich Salz 已提交
1090
    X509_free(peer);
1091
#ifndef OPENSSL_NO_EC
R
Rich Salz 已提交
1092
    ssl_print_point_formats(bio_err, s);
1093
    if (SSL_is_server(s))
R
Rich Salz 已提交
1094
        ssl_print_curves(bio_err, s, 1);
1095
    else
R
Rich Salz 已提交
1096
        ssl_print_tmp_key(bio_err, s);
1097
#else
1098
    if (!SSL_is_server(s))
R
Rich Salz 已提交
1099
        ssl_print_tmp_key(bio_err, s);
1100
#endif
1101
}
1102

1103
int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str,
R
Rich Salz 已提交
1104
               SSL_CTX *ctx)
1105 1106
{
    int i;
1107

1108 1109
    SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
    for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
1110 1111 1112 1113 1114 1115 1116 1117 1118
        const char *flag = sk_OPENSSL_STRING_value(str, i);
        const char *arg = sk_OPENSSL_STRING_value(str, i + 1);
        if (SSL_CONF_cmd(cctx, flag, arg) <= 0) {
            if (arg)
                BIO_printf(bio_err, "Error with command: \"%s %s\"\n",
                           flag, arg);
            else
                BIO_printf(bio_err, "Error with command: \"%s\"\n", flag);
            ERR_print_errors(bio_err);
1119 1120 1121 1122
            return 0;
        }
    }
    if (!SSL_CONF_CTX_finish(cctx)) {
1123 1124
        BIO_puts(bio_err, "Error finishing context\n");
        ERR_print_errors(bio_err);
1125 1126 1127 1128
        return 0;
    }
    return 1;
}
1129

1130
static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
1131 1132 1133 1134 1135 1136 1137 1138 1139
{
    X509_CRL *crl;
    int i;
    for (i = 0; i < sk_X509_CRL_num(crls); i++) {
        crl = sk_X509_CRL_value(crls, i);
        X509_STORE_add_crl(st, crl);
    }
    return 1;
}
1140

1141
int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
1142 1143 1144 1145 1146 1147 1148 1149
{
    X509_STORE *st;
    st = SSL_CTX_get_cert_store(ctx);
    add_crls_store(st, crls);
    if (crl_download)
        store_setup_crl_download(st);
    return 1;
}
1150

1151
int ssl_load_stores(SSL_CTX *ctx,
1152 1153 1154 1155 1156 1157
                    const char *vfyCApath, const char *vfyCAfile,
                    const char *chCApath, const char *chCAfile,
                    STACK_OF(X509_CRL) *crls, int crl_download)
{
    X509_STORE *vfy = NULL, *ch = NULL;
    int rv = 0;
1158
    if (vfyCApath != NULL || vfyCAfile != NULL) {
1159
        vfy = X509_STORE_new();
1160 1161
        if (vfy == NULL)
            goto err;
1162 1163 1164 1165 1166 1167 1168
        if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
            goto err;
        add_crls_store(vfy, crls);
        SSL_CTX_set1_verify_cert_store(ctx, vfy);
        if (crl_download)
            store_setup_crl_download(vfy);
    }
1169
    if (chCApath != NULL || chCAfile != NULL) {
1170
        ch = X509_STORE_new();
1171 1172
        if (ch == NULL)
            goto err;
1173 1174 1175 1176 1177 1178
        if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
            goto err;
        SSL_CTX_set1_chain_cert_store(ctx, ch);
    }
    rv = 1;
 err:
R
Rich Salz 已提交
1179 1180
    X509_STORE_free(vfy);
    X509_STORE_free(ch);
1181 1182
    return rv;
}
1183 1184 1185

/* Verbose print out of security callback */

1186 1187 1188
typedef struct {
    BIO *out;
    int verbose;
K
Kurt Roeckx 已提交
1189
    int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
1190 1191
                   void *other, void *ex);
} security_debug_ex;
1192

1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217
static STRINT_PAIR callback_types[] = {
    {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
    {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
    {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
#ifndef OPENSSL_NO_DH
    {"Temp DH key bits", SSL_SECOP_TMP_DH},
#endif
    {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
    {"Shared Curve", SSL_SECOP_CURVE_SHARED},
    {"Check Curve", SSL_SECOP_CURVE_CHECK},
    {"Supported Signature Algorithm digest", SSL_SECOP_SIGALG_SUPPORTED},
    {"Shared Signature Algorithm digest", SSL_SECOP_SIGALG_SHARED},
    {"Check Signature Algorithm digest", SSL_SECOP_SIGALG_CHECK},
    {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
    {"Certificate chain EE key", SSL_SECOP_EE_KEY},
    {"Certificate chain CA key", SSL_SECOP_CA_KEY},
    {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
    {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
    {"Certificate chain CA digest", SSL_SECOP_CA_MD},
    {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
    {"SSL compression", SSL_SECOP_COMPRESSION},
    {"Session ticket", SSL_SECOP_TICKET},
    {NULL}
};

K
Kurt Roeckx 已提交
1218
static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229
                                   int op, int bits, int nid,
                                   void *other, void *ex)
{
    security_debug_ex *sdb = ex;
    int rv, show_bits = 1, cert_md = 0;
    const char *nm;
    rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
    if (rv == 1 && sdb->verbose < 2)
        return 1;
    BIO_puts(sdb->out, "Security callback: ");

1230
    nm = lookup(op, callback_types, NULL);
1231 1232 1233 1234 1235 1236 1237
    switch (op) {
    case SSL_SECOP_TICKET:
    case SSL_SECOP_COMPRESSION:
        show_bits = 0;
        nm = NULL;
        break;
    case SSL_SECOP_VERSION:
1238
        BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254
        show_bits = 0;
        nm = NULL;
        break;
    case SSL_SECOP_CA_MD:
    case SSL_SECOP_PEER_CA_MD:
        cert_md = 1;
        break;
    }
    if (nm)
        BIO_printf(sdb->out, "%s=", nm);

    switch (op & SSL_SECOP_OTHER_TYPE) {

    case SSL_SECOP_OTHER_CIPHER:
        BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
        break;
1255

M
Matt Caswell 已提交
1256
#ifndef OPENSSL_NO_EC
1257 1258 1259 1260 1261 1262 1263 1264 1265
    case SSL_SECOP_OTHER_CURVE:
        {
            const char *cname;
            cname = EC_curve_nid2nist(nid);
            if (cname == NULL)
                cname = OBJ_nid2sn(nid);
            BIO_puts(sdb->out, cname);
        }
        break;
M
Matt Caswell 已提交
1266
#endif
D
Dr. Stephen Henson 已提交
1267
#ifndef OPENSSL_NO_DH
1268 1269 1270
    case SSL_SECOP_OTHER_DH:
        {
            DH *dh = other;
M
Matt Caswell 已提交
1271
            BIO_printf(sdb->out, "%d", DH_bits(dh));
1272 1273
            break;
        }
D
Dr. Stephen Henson 已提交
1274
#endif
1275 1276 1277 1278 1279 1280
    case SSL_SECOP_OTHER_CERT:
        {
            if (cert_md) {
                int sig_nid = X509_get_signature_nid(other);
                BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
            } else {
D
Dr. Stephen Henson 已提交
1281
                EVP_PKEY *pkey = X509_get0_pubkey(other);
1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323
                const char *algname = "";
                EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
                                        &algname, EVP_PKEY_get0_asn1(pkey));
                BIO_printf(sdb->out, "%s, bits=%d",
                           algname, EVP_PKEY_bits(pkey));
            }
            break;
        }
    case SSL_SECOP_OTHER_SIGALG:
        {
            const unsigned char *salg = other;
            const char *sname = NULL;
            switch (salg[1]) {
            case TLSEXT_signature_anonymous:
                sname = "anonymous";
                break;
            case TLSEXT_signature_rsa:
                sname = "RSA";
                break;
            case TLSEXT_signature_dsa:
                sname = "DSA";
                break;
            case TLSEXT_signature_ecdsa:
                sname = "ECDSA";
                break;
            }

            BIO_puts(sdb->out, OBJ_nid2sn(nid));
            if (sname)
                BIO_printf(sdb->out, ", algorithm=%s", sname);
            else
                BIO_printf(sdb->out, ", algid=%d", salg[1]);
            break;
        }

    }

    if (show_bits)
        BIO_printf(sdb->out, ", security bits=%d", bits);
    BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
    return rv;
}
1324

R
Rich Salz 已提交
1325
void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
1326 1327
{
    static security_debug_ex sdb;
R
Rich Salz 已提交
1328 1329

    sdb.out = bio_err;
1330 1331 1332 1333 1334
    sdb.verbose = verbose;
    sdb.old_cb = SSL_CTX_get_security_callback(ctx);
    SSL_CTX_set_security_callback(ctx, security_callback_debug);
    SSL_CTX_set0_security_ex_data(ctx, &sdb);
}