/* $OpenBSD: ssltest.c,v 1.45 2024/03/01 03:45:16 tb Exp $ */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ /* ==================================================================== * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ /* ==================================================================== * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. * ECC cipher suite support in OpenSSL originally developed by * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. */ /* ==================================================================== * Copyright 2005 Nokia. All rights reserved. * * The portions of the attached software ("Contribution") is developed by * Nokia Corporation and is licensed pursuant to the OpenSSL open source * license. * * The Contribution, originally written by Mika Kousa and Pasi Eronen of * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites * support (see RFC 4279) to OpenSSL. * * No patent licenses or other rights except those expressly stated in * the OpenSSL open source license shall be deemed granted or received * expressly, by implication, estoppel, or otherwise. * * No assurances are provided by Nokia that the Contribution does not * infringe the patent or other intellectual property rights of any third * party or that the license provides you with all the necessary rights * to make use of the Contribution. * * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR * OTHERWISE. */ /* XXX - USE_BIOPAIR code needs updating for BIO_n{read,write}{,0} removal. */ /* #define USE_BIOPAIR */ #define _BSD_SOURCE 1 /* Or gethostname won't be declared properly on Linux and GNU platforms. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ssl_local.h" #define TEST_SERVER_CERT "../apps/server.pem" #define TEST_CLIENT_CERT "../apps/client.pem" static int verify_callback(int ok, X509_STORE_CTX *ctx); static int app_verify_callback(X509_STORE_CTX *ctx, void *arg); static DH *get_dh1024(void); static DH *get_dh1024dsa(void); static BIO *bio_err = NULL; static BIO *bio_stdout = NULL; static const char *alpn_client; static const char *alpn_server; static const char *alpn_expected; static unsigned char *alpn_selected; /* * next_protos_parse parses a comma separated list of strings into a string * in a format suitable for passing to SSL_CTX_set_next_protos_advertised. * outlen: (output) set to the length of the resulting buffer on success. * err: (maybe NULL) on failure, an error message line is written to this BIO. * in: a NUL terminated string like "abc,def,ghi" * * returns: a malloced buffer or NULL on failure. */ static unsigned char * next_protos_parse(unsigned short *outlen, const char *in) { size_t i, len, start = 0; unsigned char *out; len = strlen(in); if (len >= 65535) return (NULL); if ((out = malloc(strlen(in) + 1)) == NULL) return (NULL); for (i = 0; i <= len; ++i) { if (i == len || in[i] == ',') { if (i - start > 255) { free(out); return (NULL); } out[start] = i - start; start = i + 1; } else out[i+1] = in[i]; } *outlen = len + 1; return (out); } static int cb_server_alpn(SSL *s, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg) { unsigned char *protos; unsigned short protos_len; if ((protos = next_protos_parse(&protos_len, alpn_server)) == NULL) { fprintf(stderr, "failed to parser ALPN server protocol string: %s\n", alpn_server); abort(); } if (SSL_select_next_proto((unsigned char **)out, outlen, protos, protos_len, in, inlen) != OPENSSL_NPN_NEGOTIATED) { free(protos); return (SSL_TLSEXT_ERR_NOACK); } /* * Make a copy of the selected protocol which will be freed in * verify_alpn. */ free(alpn_selected); if ((alpn_selected = malloc(*outlen)) == NULL) { fprintf(stderr, "malloc failed\n"); abort(); } memcpy(alpn_selected, *out, *outlen); *out = alpn_selected; free(protos); return (SSL_TLSEXT_ERR_OK); } static int verify_alpn(SSL *client, SSL *server) { const unsigned char *client_proto, *server_proto; unsigned int client_proto_len = 0, server_proto_len = 0; SSL_get0_alpn_selected(client, &client_proto, &client_proto_len); SSL_get0_alpn_selected(server, &server_proto, &server_proto_len); free(alpn_selected); alpn_selected = NULL; if (client_proto_len != server_proto_len || (client_proto_len > 0 && memcmp(client_proto, server_proto, client_proto_len) != 0)) { BIO_printf(bio_stdout, "ALPN selected protocols differ!\n"); goto err; } if (client_proto_len > 0 && alpn_expected == NULL) { BIO_printf(bio_stdout, "ALPN unexpectedly negotiated\n"); goto err; } if (alpn_expected != NULL && (client_proto_len != strlen(alpn_expected) || memcmp(client_proto, alpn_expected, client_proto_len) != 0)) { BIO_printf(bio_stdout, "ALPN selected protocols not equal to " "expected protocol: %s\n", alpn_expected); goto err; } return (0); err: BIO_printf(bio_stdout, "ALPN results: client: '"); BIO_write(bio_stdout, client_proto, client_proto_len); BIO_printf(bio_stdout, "', server: '"); BIO_write(bio_stdout, server_proto, server_proto_len); BIO_printf(bio_stdout, "'\n"); BIO_printf(bio_stdout, "ALPN configured: client: '%s', server: '%s'\n", alpn_client, alpn_server); return (-1); } static char *cipher = NULL; static int verbose = 0; static int debug = 0; int doit_biopair(SSL *s_ssl, SSL *c_ssl, long bytes, clock_t *s_time, clock_t *c_time); int doit(SSL *s_ssl, SSL *c_ssl, long bytes); static void sv_usage(void) { fprintf(stderr, "usage: ssltest [args ...]\n"); fprintf(stderr, "\n"); fprintf(stderr, " -server_auth - check server certificate\n"); fprintf(stderr, " -client_auth - do client authentication\n"); fprintf(stderr, " -proxy - allow proxy certificates\n"); fprintf(stderr, " -proxy_auth - set proxy policy rights\n"); fprintf(stderr, " -proxy_cond - experssion to test proxy policy rights\n"); fprintf(stderr, " -v - more output\n"); fprintf(stderr, " -d - debug output\n"); fprintf(stderr, " -reuse - use session-id reuse\n"); fprintf(stderr, " -num - number of connections to perform\n"); fprintf(stderr, " -bytes - number of bytes to swap between client/server\n"); fprintf(stderr, " -dhe1024dsa - use 1024 bit key (with 160-bit subprime) for DHE\n"); fprintf(stderr, " -no_dhe - disable DHE\n"); fprintf(stderr, " -no_ecdhe - disable ECDHE\n"); fprintf(stderr, " -dtls1_2 - use DTLSv1.2\n"); fprintf(stderr, " -tls1 - use TLSv1\n"); fprintf(stderr, " -tls1_2 - use TLSv1.2\n"); fprintf(stderr, " -CApath arg - PEM format directory of CA's\n"); fprintf(stderr, " -CAfile arg - PEM format file of CA's\n"); fprintf(stderr, " -cert arg - Server certificate file\n"); fprintf(stderr, " -key arg - Server key file (default: same as -cert)\n"); fprintf(stderr, " -c_cert arg - Client certificate file\n"); fprintf(stderr, " -c_key arg - Client key file (default: same as -c_cert)\n"); fprintf(stderr, " -cipher arg - The cipher list\n"); fprintf(stderr, " -bio_pair - Use BIO pairs\n"); fprintf(stderr, " -f - Test even cases that can't work\n"); fprintf(stderr, " -time - measure processor time used by client and server\n"); fprintf(stderr, " -named_curve arg - Elliptic curve name to use for ephemeral ECDH keys.\n" \ " Use \"openssl ecparam -list_curves\" for all names\n" \ " (default is sect163r2).\n"); fprintf(stderr, " -alpn_client - have client side offer ALPN\n"); fprintf(stderr, " -alpn_server - have server side offer ALPN\n"); fprintf(stderr, " -alpn_expected - the ALPN protocol that should be negotiated\n"); } static void print_details(SSL *c_ssl, const char *prefix) { const SSL_CIPHER *ciph; X509 *cert = NULL; EVP_PKEY *pkey; ciph = SSL_get_current_cipher(c_ssl); BIO_printf(bio_stdout, "%s%s, cipher %s %s", prefix, SSL_get_version(c_ssl), SSL_CIPHER_get_version(ciph), SSL_CIPHER_get_name(ciph)); if ((cert = SSL_get_peer_certificate(c_ssl)) == NULL) goto out; if ((pkey = X509_get0_pubkey(cert)) == NULL) goto out; if (EVP_PKEY_id(pkey) == EVP_PKEY_RSA) { RSA *rsa; if ((rsa = EVP_PKEY_get0_RSA(pkey)) == NULL) goto out; BIO_printf(bio_stdout, ", %d bit RSA", RSA_bits(rsa)); } else if (EVP_PKEY_id(pkey) == EVP_PKEY_DSA) { DSA *dsa; const BIGNUM *p; if ((dsa = EVP_PKEY_get0_DSA(pkey)) == NULL) goto out; DSA_get0_pqg(dsa, &p, NULL, NULL); BIO_printf(bio_stdout, ", %d bit DSA", BN_num_bits(p)); } out: /* * The SSL API does not allow us to look at temporary RSA/DH keys, * otherwise we should print their lengths too */ BIO_printf(bio_stdout, "\n"); X509_free(cert); } int main(int argc, char *argv[]) { char *CApath = NULL, *CAfile = NULL; int badop = 0; int bio_pair = 0; int force = 0; int tls1 = 0, tls1_2 = 0, dtls1_2 = 0, ret = 1; int client_auth = 0; int server_auth = 0, i; char *app_verify_arg = "Test Callback Argument"; char *server_cert = TEST_SERVER_CERT; char *server_key = NULL; char *client_cert = TEST_CLIENT_CERT; char *client_key = NULL; char *named_curve = NULL; SSL_CTX *s_ctx = NULL; SSL_CTX *c_ctx = NULL; const SSL_METHOD *meth = NULL; SSL *c_ssl, *s_ssl; int number = 1, reuse = 0; int seclevel = 0; long bytes = 256L; DH *dh; int dhe1024dsa = 0; EC_KEY *ecdh = NULL; int no_dhe = 0; int no_ecdhe = 0; int print_time = 0; clock_t s_time = 0, c_time = 0; verbose = 0; debug = 0; cipher = 0; bio_err = BIO_new_fp(stderr, BIO_NOCLOSE|BIO_FP_TEXT); bio_stdout = BIO_new_fp(stdout, BIO_NOCLOSE|BIO_FP_TEXT); argc--; argv++; while (argc >= 1) { if (!strcmp(*argv, "-F")) { fprintf(stderr, "not compiled with FIPS support, so exiting without running.\n"); exit(0); } else if (strcmp(*argv, "-server_auth") == 0) server_auth = 1; else if (strcmp(*argv, "-client_auth") == 0) client_auth = 1; else if (strcmp(*argv, "-v") == 0) verbose = 1; else if (strcmp(*argv, "-d") == 0) debug = 1; else if (strcmp(*argv, "-reuse") == 0) reuse = 1; else if (strcmp(*argv, "-dhe1024dsa") == 0) { dhe1024dsa = 1; } else if (strcmp(*argv, "-no_dhe") == 0) no_dhe = 1; else if (strcmp(*argv, "-no_ecdhe") == 0) no_ecdhe = 1; else if (strcmp(*argv, "-dtls1_2") == 0) dtls1_2 = 1; else if (strcmp(*argv, "-tls1") == 0) tls1 = 1; else if (strcmp(*argv, "-tls1_2") == 0) tls1_2 = 1; else if (strncmp(*argv, "-num", 4) == 0) { if (--argc < 1) goto bad; number = atoi(*(++argv)); if (number == 0) number = 1; } else if (strncmp(*argv, "-seclevel", 9) == 0) { if (--argc < 1) goto bad; seclevel = atoi(*(++argv)); } else if (strcmp(*argv, "-bytes") == 0) { if (--argc < 1) goto bad; bytes = atol(*(++argv)); if (bytes == 0L) bytes = 1L; i = strlen(argv[0]); if (argv[0][i - 1] == 'k') bytes*=1024L; if (argv[0][i - 1] == 'm') bytes*=1024L*1024L; } else if (strcmp(*argv, "-cert") == 0) { if (--argc < 1) goto bad; server_cert= *(++argv); } else if (strcmp(*argv, "-s_cert") == 0) { if (--argc < 1) goto bad; server_cert= *(++argv); } else if (strcmp(*argv, "-key") == 0) { if (--argc < 1) goto bad; server_key= *(++argv); } else if (strcmp(*argv, "-s_key") == 0) { if (--argc < 1) goto bad; server_key= *(++argv); } else if (strcmp(*argv, "-c_cert") == 0) { if (--argc < 1) goto bad; client_cert= *(++argv); } else if (strcmp(*argv, "-c_key") == 0) { if (--argc < 1) goto bad; client_key= *(++argv); } else if (strcmp(*argv, "-cipher") == 0) { if (--argc < 1) goto bad; cipher= *(++argv); } else if (strcmp(*argv, "-CApath") == 0) { if (--argc < 1) goto bad; CApath= *(++argv); } else if (strcmp(*argv, "-CAfile") == 0) { if (--argc < 1) goto bad; CAfile= *(++argv); } else if (strcmp(*argv, "-bio_pair") == 0) { bio_pair = 1; } else if (strcmp(*argv, "-f") == 0) { force = 1; } else if (strcmp(*argv, "-time") == 0) { print_time = 1; } else if (strcmp(*argv, "-named_curve") == 0) { if (--argc < 1) goto bad; named_curve = *(++argv); } else if (strcmp(*argv, "-app_verify") == 0) { ; } else if (strcmp(*argv, "-alpn_client") == 0) { if (--argc < 1) goto bad; alpn_client = *(++argv); } else if (strcmp(*argv, "-alpn_server") == 0) { if (--argc < 1) goto bad; alpn_server = *(++argv); } else if (strcmp(*argv, "-alpn_expected") == 0) { if (--argc < 1) goto bad; alpn_expected = *(++argv); } else { fprintf(stderr, "unknown option %s\n", *argv); badop = 1; break; } argc--; argv++; } if (badop) { bad: sv_usage(); goto end; } if (!dtls1_2 && !tls1 && !tls1_2 && number > 1 && !reuse && !force) { fprintf(stderr, "This case cannot work. Use -f to perform " "the test anyway (and\n-d to see what happens), " "or add one of -dtls1, -tls1, -tls1_2, -reuse\n" "to avoid protocol mismatch.\n"); exit(1); } if (print_time) { if (!bio_pair) { fprintf(stderr, "Using BIO pair (-bio_pair)\n"); bio_pair = 1; } if (number < 50 && !force) fprintf(stderr, "Warning: For accurate timings, use more connections (e.g. -num 1000)\n"); } /* if (cipher == NULL) cipher=getenv("SSL_CIPHER"); */ SSL_library_init(); SSL_load_error_strings(); if (dtls1_2) meth = DTLSv1_2_method(); else if (tls1) meth = TLSv1_method(); else if (tls1_2) meth = TLSv1_2_method(); else meth = TLS_method(); c_ctx = SSL_CTX_new(meth); s_ctx = SSL_CTX_new(meth); if ((c_ctx == NULL) || (s_ctx == NULL)) { ERR_print_errors(bio_err); goto end; } SSL_CTX_set_security_level(c_ctx, seclevel); SSL_CTX_set_security_level(s_ctx, seclevel); if (cipher != NULL) { SSL_CTX_set_cipher_list(c_ctx, cipher); SSL_CTX_set_cipher_list(s_ctx, cipher); } if (!no_dhe) { if (dhe1024dsa) { /* use SSL_OP_SINGLE_DH_USE to avoid small subgroup attacks */ SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_DH_USE); dh = get_dh1024dsa(); } else dh = get_dh1024(); SSL_CTX_set_tmp_dh(s_ctx, dh); DH_free(dh); } if (!no_ecdhe) { int nid; if (named_curve != NULL) { nid = OBJ_sn2nid(named_curve); if (nid == 0) { BIO_printf(bio_err, "unknown curve name (%s)\n", named_curve); goto end; } } else nid = NID_X9_62_prime256v1; ecdh = EC_KEY_new_by_curve_name(nid); if (ecdh == NULL) { BIO_printf(bio_err, "unable to create curve\n"); goto end; } SSL_CTX_set_tmp_ecdh(s_ctx, ecdh); SSL_CTX_set_options(s_ctx, SSL_OP_SINGLE_ECDH_USE); EC_KEY_free(ecdh); } if (!SSL_CTX_use_certificate_chain_file(s_ctx, server_cert)) { ERR_print_errors(bio_err); } else if (!SSL_CTX_use_PrivateKey_file(s_ctx, (server_key ? server_key : server_cert), SSL_FILETYPE_PEM)) { ERR_print_errors(bio_err); goto end; } if (client_auth) { SSL_CTX_use_certificate_chain_file(c_ctx, client_cert); SSL_CTX_use_PrivateKey_file(c_ctx, (client_key ? client_key : client_cert), SSL_FILETYPE_PEM); } if ((!SSL_CTX_load_verify_locations(s_ctx, CAfile, CApath)) || (!SSL_CTX_set_default_verify_paths(s_ctx)) || (!SSL_CTX_load_verify_locations(c_ctx, CAfile, CApath)) || (!SSL_CTX_set_default_verify_paths(c_ctx))) { /* fprintf(stderr,"SSL_load_verify_locations\n"); */ ERR_print_errors(bio_err); /* goto end; */ } if (client_auth) { BIO_printf(bio_err, "client authentication\n"); SSL_CTX_set_verify(s_ctx, SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT, verify_callback); SSL_CTX_set_cert_verify_callback(s_ctx, app_verify_callback, app_verify_arg); } if (server_auth) { BIO_printf(bio_err, "server authentication\n"); SSL_CTX_set_verify(c_ctx, SSL_VERIFY_PEER, verify_callback); SSL_CTX_set_cert_verify_callback(c_ctx, app_verify_callback, app_verify_arg); } { int session_id_context = 0; SSL_CTX_set_session_id_context(s_ctx, (void *)&session_id_context, sizeof(session_id_context)); } if (alpn_server != NULL) SSL_CTX_set_alpn_select_cb(s_ctx, cb_server_alpn, NULL); if (alpn_client != NULL) { unsigned short alpn_len; unsigned char *alpn = next_protos_parse(&alpn_len, alpn_client); if (alpn == NULL) { BIO_printf(bio_err, "Error parsing -alpn_client argument\n"); goto end; } SSL_CTX_set_alpn_protos(c_ctx, alpn, alpn_len); free(alpn); } c_ssl = SSL_new(c_ctx); s_ssl = SSL_new(s_ctx); for (i = 0; i < number; i++) { if (!reuse) SSL_set_session(c_ssl, NULL); #ifdef USE_BIOPAIR if (bio_pair) ret = doit_biopair(s_ssl, c_ssl, bytes, &s_time, &c_time); else #endif ret = doit(s_ssl, c_ssl, bytes); } if (!verbose) { print_details(c_ssl, ""); } if ((number > 1) || (bytes > 1L)) BIO_printf(bio_stdout, "%d handshakes of %ld bytes done\n", number, bytes); if (print_time) { #ifdef CLOCKS_PER_SEC /* "To determine the time in seconds, the value returned * by the clock function should be divided by the value * of the macro CLOCKS_PER_SEC." * -- ISO/IEC 9899 */ BIO_printf(bio_stdout, "Approximate total server time: %6.2f s\n" "Approximate total client time: %6.2f s\n", (double)s_time/CLOCKS_PER_SEC, (double)c_time/CLOCKS_PER_SEC); #else /* "`CLOCKS_PER_SEC' undeclared (first use this function)" * -- cc on NeXTstep/OpenStep */ BIO_printf(bio_stdout, "Approximate total server time: %6.2f units\n" "Approximate total client time: %6.2f units\n", (double)s_time, (double)c_time); #endif } SSL_free(s_ssl); SSL_free(c_ssl); end: SSL_CTX_free(s_ctx); SSL_CTX_free(c_ctx); BIO_free(bio_stdout); CRYPTO_cleanup_all_ex_data(); ERR_free_strings(); ERR_remove_thread_state(NULL); EVP_cleanup(); BIO_free(bio_err); exit(ret); return ret; } #if USE_BIOPAIR int doit_biopair(SSL *s_ssl, SSL *c_ssl, long count, clock_t *s_time, clock_t *c_time) { long cw_num = count, cr_num = count, sw_num = count, sr_num = count; BIO *s_ssl_bio = NULL, *c_ssl_bio = NULL; BIO *server = NULL, *server_io = NULL; BIO *client = NULL, *client_io = NULL; int ret = 1; size_t bufsiz = 256; /* small buffer for testing */ if (!BIO_new_bio_pair(&server, bufsiz, &server_io, bufsiz)) goto err; if (!BIO_new_bio_pair(&client, bufsiz, &client_io, bufsiz)) goto err; s_ssl_bio = BIO_new(BIO_f_ssl()); if (!s_ssl_bio) goto err; c_ssl_bio = BIO_new(BIO_f_ssl()); if (!c_ssl_bio) goto err; SSL_set_connect_state(c_ssl); SSL_set_bio(c_ssl, client, client); (void)BIO_set_ssl(c_ssl_bio, c_ssl, BIO_NOCLOSE); SSL_set_accept_state(s_ssl); SSL_set_bio(s_ssl, server, server); (void)BIO_set_ssl(s_ssl_bio, s_ssl, BIO_NOCLOSE); do { /* c_ssl_bio: SSL filter BIO * * client: pseudo-I/O for SSL library * * client_io: client's SSL communication; usually to be * relayed over some I/O facility, but in this * test program, we're the server, too: * * server_io: server's SSL communication * * server: pseudo-I/O for SSL library * * s_ssl_bio: SSL filter BIO * * The client and the server each employ a "BIO pair": * client + client_io, server + server_io. * BIO pairs are symmetric. A BIO pair behaves similar * to a non-blocking socketpair (but both endpoints must * be handled by the same thread). * [Here we could connect client and server to the ends * of a single BIO pair, but then this code would be less * suitable as an example for BIO pairs in general.] * * Useful functions for querying the state of BIO pair endpoints: * * BIO_ctrl_pending(bio) number of bytes we can read now * BIO_ctrl_get_read_request(bio) number of bytes needed to fulfil * other side's read attempt * BIO_ctrl_get_write_guarantee(bio) number of bytes we can write now * * ..._read_request is never more than ..._write_guarantee; * it depends on the application which one you should use. */ /* We have non-blocking behaviour throughout this test program, but * can be sure that there is *some* progress in each iteration; so * we don't have to worry about ..._SHOULD_READ or ..._SHOULD_WRITE * -- we just try everything in each iteration */ { /* CLIENT */ char cbuf[1024*8]; int i, r; clock_t c_clock = clock(); memset(cbuf, 0, sizeof(cbuf)); if (debug) if (SSL_in_init(c_ssl)) printf("client waiting in SSL_connect - %s\n", SSL_state_string_long(c_ssl)); if (cw_num > 0) { /* Write to server. */ if (cw_num > (long)sizeof cbuf) i = sizeof cbuf; else i = (int)cw_num; r = BIO_write(c_ssl_bio, cbuf, i); if (r < 0) { if (!BIO_should_retry(c_ssl_bio)) { fprintf(stderr, "ERROR in CLIENT\n"); goto err; } /* BIO_should_retry(...) can just be ignored here. * The library expects us to call BIO_write with * the same arguments again, and that's what we will * do in the next iteration. */ } else if (r == 0) { fprintf(stderr, "SSL CLIENT STARTUP FAILED\n"); goto err; } else { if (debug) printf("client wrote %d\n", r); cw_num -= r; } } if (cr_num > 0) { /* Read from server. */ r = BIO_read(c_ssl_bio, cbuf, sizeof(cbuf)); if (r < 0) { if (!BIO_should_retry(c_ssl_bio)) { fprintf(stderr, "ERROR in CLIENT\n"); goto err; } /* Again, "BIO_should_retry" can be ignored. */ } else if (r == 0) { fprintf(stderr, "SSL CLIENT STARTUP FAILED\n"); goto err; } else { if (debug) printf("client read %d\n", r); cr_num -= r; } } /* c_time and s_time increments will typically be very small * (depending on machine speed and clock tick intervals), * but sampling over a large number of connections should * result in fairly accurate figures. We cannot guarantee * a lot, however -- if each connection lasts for exactly * one clock tick, it will be counted only for the client * or only for the server or even not at all. */ *c_time += (clock() - c_clock); } { /* SERVER */ char sbuf[1024*8]; int i, r; clock_t s_clock = clock(); memset(sbuf, 0, sizeof(sbuf)); if (debug) if (SSL_in_init(s_ssl)) printf("server waiting in SSL_accept - %s\n", SSL_state_string_long(s_ssl)); if (sw_num > 0) { /* Write to client. */ if (sw_num > (long)sizeof sbuf) i = sizeof sbuf; else i = (int)sw_num; r = BIO_write(s_ssl_bio, sbuf, i); if (r < 0) { if (!BIO_should_retry(s_ssl_bio)) { fprintf(stderr, "ERROR in SERVER\n"); goto err; } /* Ignore "BIO_should_retry". */ } else if (r == 0) { fprintf(stderr, "SSL SERVER STARTUP FAILED\n"); goto err; } else { if (debug) printf("server wrote %d\n", r); sw_num -= r; } } if (sr_num > 0) { /* Read from client. */ r = BIO_read(s_ssl_bio, sbuf, sizeof(sbuf)); if (r < 0) { if (!BIO_should_retry(s_ssl_bio)) { fprintf(stderr, "ERROR in SERVER\n"); goto err; } /* blah, blah */ } else if (r == 0) { fprintf(stderr, "SSL SERVER STARTUP FAILED\n"); goto err; } else { if (debug) printf("server read %d\n", r); sr_num -= r; } } *s_time += (clock() - s_clock); } { /* "I/O" BETWEEN CLIENT AND SERVER. */ size_t r1, r2; BIO *io1 = server_io, *io2 = client_io; /* we use the non-copying interface for io1 * and the standard BIO_write/BIO_read interface for io2 */ static int prev_progress = 1; int progress = 0; /* io1 to io2 */ do { size_t num; int r; r1 = BIO_ctrl_pending(io1); r2 = BIO_ctrl_get_write_guarantee(io2); num = r1; if (r2 < num) num = r2; if (num) { char *dataptr; if (INT_MAX < num) /* yeah, right */ num = INT_MAX; r = BIO_nread(io1, &dataptr, (int)num); assert(r > 0); assert(r <= (int)num); /* possibly r < num (non-contiguous data) */ num = r; r = BIO_write(io2, dataptr, (int)num); if (r != (int)num) /* can't happen */ { fprintf(stderr, "ERROR: BIO_write could not write " "BIO_ctrl_get_write_guarantee() bytes"); goto err; } progress = 1; if (debug) printf((io1 == client_io) ? "C->S relaying: %d bytes\n" : "S->C relaying: %d bytes\n", (int)num); } } while (r1 && r2); /* io2 to io1 */ { size_t num; int r; r1 = BIO_ctrl_pending(io2); r2 = BIO_ctrl_get_read_request(io1); /* here we could use ..._get_write_guarantee instead of * ..._get_read_request, but by using the latter * we test restartability of the SSL implementation * more thoroughly */ num = r1; if (r2 < num) num = r2; if (num) { char *dataptr; if (INT_MAX < num) num = INT_MAX; if (num > 1) --num; /* test restartability even more thoroughly */ r = BIO_nwrite0(io1, &dataptr); assert(r > 0); if (r < (int)num) num = r; r = BIO_read(io2, dataptr, (int)num); if (r != (int)num) /* can't happen */ { fprintf(stderr, "ERROR: BIO_read could not read " "BIO_ctrl_pending() bytes"); goto err; } progress = 1; r = BIO_nwrite(io1, &dataptr, (int)num); if (r != (int)num) /* can't happen */ { fprintf(stderr, "ERROR: BIO_nwrite() did not accept " "BIO_nwrite0() bytes"); goto err; } if (debug) printf((io2 == client_io) ? "C->S relaying: %d bytes\n" : "S->C relaying: %d bytes\n", (int)num); } } /* no loop, BIO_ctrl_get_read_request now returns 0 anyway */ if (!progress && !prev_progress) { if (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0) { fprintf(stderr, "ERROR: got stuck\n"); goto err; } } prev_progress = progress; } } while (cw_num > 0 || cr_num > 0 || sw_num > 0 || sr_num > 0); if (verbose) print_details(c_ssl, "DONE via BIO pair: "); if (verify_alpn(c_ssl, s_ssl) < 0) { ret = 1; goto err; } ret = 0; err: ERR_print_errors(bio_err); BIO_free(server); BIO_free(server_io); BIO_free(client); BIO_free(client_io); BIO_free(s_ssl_bio); BIO_free(c_ssl_bio); return ret; } #endif #define W_READ 1 #define W_WRITE 2 #define C_DONE 1 #define S_DONE 2 int doit(SSL *s_ssl, SSL *c_ssl, long count) { char cbuf[1024*8], sbuf[1024*8]; long cw_num = count, cr_num = count; long sw_num = count, sr_num = count; int ret = 1; BIO *c_to_s = NULL; BIO *s_to_c = NULL; BIO *c_bio = NULL; BIO *s_bio = NULL; int c_r, c_w, s_r, s_w; int i, j; int done = 0; int c_write, s_write; int do_server = 0, do_client = 0; memset(cbuf, 0, sizeof(cbuf)); memset(sbuf, 0, sizeof(sbuf)); c_to_s = BIO_new(BIO_s_mem()); s_to_c = BIO_new(BIO_s_mem()); if ((s_to_c == NULL) || (c_to_s == NULL)) { ERR_print_errors(bio_err); goto err; } c_bio = BIO_new(BIO_f_ssl()); s_bio = BIO_new(BIO_f_ssl()); if ((c_bio == NULL) || (s_bio == NULL)) { ERR_print_errors(bio_err); goto err; } SSL_set_connect_state(c_ssl); SSL_set_bio(c_ssl, s_to_c, c_to_s); BIO_set_ssl(c_bio, c_ssl, BIO_NOCLOSE); SSL_set_accept_state(s_ssl); SSL_set_bio(s_ssl, c_to_s, s_to_c); BIO_set_ssl(s_bio, s_ssl, BIO_NOCLOSE); c_r = 0; s_r = 1; c_w = 1; s_w = 0; c_write = 1, s_write = 0; /* We can always do writes */ for (;;) { do_server = 0; do_client = 0; i = (int)BIO_pending(s_bio); if ((i && s_r) || s_w) do_server = 1; i = (int)BIO_pending(c_bio); if ((i && c_r) || c_w) do_client = 1; if (do_server && debug) { if (SSL_in_init(s_ssl)) printf("server waiting in SSL_accept - %s\n", SSL_state_string_long(s_ssl)); } if (do_client && debug) { if (SSL_in_init(c_ssl)) printf("client waiting in SSL_connect - %s\n", SSL_state_string_long(c_ssl)); } if (!do_client && !do_server) { fprintf(stdout, "ERROR in STARTUP\n"); ERR_print_errors(bio_err); goto err; } if (do_client && !(done & C_DONE)) { if (c_write) { j = (cw_num > (long)sizeof(cbuf)) ? (int)sizeof(cbuf) : (int)cw_num; i = BIO_write(c_bio, cbuf, j); if (i < 0) { c_r = 0; c_w = 0; if (BIO_should_retry(c_bio)) { if (BIO_should_read(c_bio)) c_r = 1; if (BIO_should_write(c_bio)) c_w = 1; } else { fprintf(stderr, "ERROR in CLIENT\n"); ERR_print_errors(bio_err); goto err; } } else if (i == 0) { fprintf(stderr, "SSL CLIENT STARTUP FAILED\n"); goto err; } else { if (debug) printf("client wrote %d\n", i); /* ok */ s_r = 1; c_write = 0; cw_num -= i; } } else { i = BIO_read(c_bio, cbuf, sizeof(cbuf)); if (i < 0) { c_r = 0; c_w = 0; if (BIO_should_retry(c_bio)) { if (BIO_should_read(c_bio)) c_r = 1; if (BIO_should_write(c_bio)) c_w = 1; } else { fprintf(stderr, "ERROR in CLIENT\n"); ERR_print_errors(bio_err); goto err; } } else if (i == 0) { fprintf(stderr, "SSL CLIENT STARTUP FAILED\n"); goto err; } else { if (debug) printf("client read %d\n", i); cr_num -= i; if (sw_num > 0) { s_write = 1; s_w = 1; } if (cr_num <= 0) { s_write = 1; s_w = 1; done = S_DONE|C_DONE; } } } } if (do_server && !(done & S_DONE)) { if (!s_write) { i = BIO_read(s_bio, sbuf, sizeof(cbuf)); if (i < 0) { s_r = 0; s_w = 0; if (BIO_should_retry(s_bio)) { if (BIO_should_read(s_bio)) s_r = 1; if (BIO_should_write(s_bio)) s_w = 1; } else { fprintf(stderr, "ERROR in SERVER\n"); ERR_print_errors(bio_err); goto err; } } else if (i == 0) { ERR_print_errors(bio_err); fprintf(stderr, "SSL SERVER STARTUP FAILED in SSL_read\n"); goto err; } else { if (debug) printf("server read %d\n", i); sr_num -= i; if (cw_num > 0) { c_write = 1; c_w = 1; } if (sr_num <= 0) { s_write = 1; s_w = 1; c_write = 0; } } } else { j = (sw_num > (long)sizeof(sbuf)) ? (int)sizeof(sbuf) : (int)sw_num; i = BIO_write(s_bio, sbuf, j); if (i < 0) { s_r = 0; s_w = 0; if (BIO_should_retry(s_bio)) { if (BIO_should_read(s_bio)) s_r = 1; if (BIO_should_write(s_bio)) s_w = 1; } else { fprintf(stderr, "ERROR in SERVER\n"); ERR_print_errors(bio_err); goto err; } } else if (i == 0) { ERR_print_errors(bio_err); fprintf(stderr, "SSL SERVER STARTUP FAILED in SSL_write\n"); goto err; } else { if (debug) printf("server wrote %d\n", i); sw_num -= i; s_write = 0; c_r = 1; if (sw_num <= 0) done |= S_DONE; } } } if ((done & S_DONE) && (done & C_DONE)) break; } if (verbose) print_details(c_ssl, "DONE: "); if (verify_alpn(c_ssl, s_ssl) < 0) { ret = 1; goto err; } ret = 0; err: /* We have to set the BIO's to NULL otherwise they will be * free()ed twice. Once when th s_ssl is SSL_free()ed and * again when c_ssl is SSL_free()ed. * This is a hack required because s_ssl and c_ssl are sharing the same * BIO structure and SSL_set_bio() and SSL_free() automatically * BIO_free non NULL entries. * You should not normally do this or be required to do this */ if (s_ssl != NULL) { s_ssl->rbio = NULL; s_ssl->wbio = NULL; } if (c_ssl != NULL) { c_ssl->rbio = NULL; c_ssl->wbio = NULL; } BIO_free(c_to_s); BIO_free(s_to_c); BIO_free_all(c_bio); BIO_free_all(s_bio); return (ret); } static int verify_callback(int ok, X509_STORE_CTX *ctx) { X509 *xs; char *s, buf[256]; int error, error_depth; xs = X509_STORE_CTX_get_current_cert(ctx); s = X509_NAME_oneline(X509_get_subject_name(xs), buf, sizeof buf); error = X509_STORE_CTX_get_error(ctx); error_depth = X509_STORE_CTX_get_error_depth(ctx); if (s != NULL) { if (ok) fprintf(stderr, "depth=%d %s\n", error_depth, buf); else { fprintf(stderr, "depth=%d error=%d %s\n", error_depth, error, buf); } } if (ok == 0) { fprintf(stderr, "Error string: %s\n", X509_verify_cert_error_string(error)); switch (error) { case X509_V_ERR_CERT_NOT_YET_VALID: case X509_V_ERR_CERT_HAS_EXPIRED: case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT: fprintf(stderr, " ... ignored.\n"); ok = 1; } } return (ok); } static int app_verify_callback(X509_STORE_CTX *ctx, void *arg) { X509 *xs; char *s = NULL, buf[256]; const char *cb_arg = arg; xs = X509_STORE_CTX_get0_cert(ctx); fprintf(stderr, "In app_verify_callback, allowing cert. "); fprintf(stderr, "Arg is: %s\n", cb_arg); fprintf(stderr, "Finished printing do we have a context? 0x%p a cert? 0x%p\n", (void *)ctx, (void *)xs); if (xs) s = X509_NAME_oneline(X509_get_subject_name(xs), buf, 256); if (s != NULL) { fprintf(stderr, "cert depth=%d %s\n", X509_STORE_CTX_get_error_depth(ctx), buf); } return 1; } /* These DH parameters have been generated as follows: * $ openssl dhparam -C -noout 1024 * $ openssl dhparam -C -noout -dsaparam 1024 * (The second function has been renamed to avoid name conflicts.) */ static DH * get_dh1024(void) { static unsigned char dh1024_p[] = { 0xF8, 0x81, 0x89, 0x7D, 0x14, 0x24, 0xC5, 0xD1, 0xE6, 0xF7, 0xBF, 0x3A, 0xE4, 0x90, 0xF4, 0xFC, 0x73, 0xFB, 0x34, 0xB5, 0xFA, 0x4C, 0x56, 0xA2, 0xEA, 0xA7, 0xE9, 0xC0, 0xC0, 0xCE, 0x89, 0xE1, 0xFA, 0x63, 0x3F, 0xB0, 0x6B, 0x32, 0x66, 0xF1, 0xD1, 0x7B, 0xB0, 0x00, 0x8F, 0xCA, 0x87, 0xC2, 0xAE, 0x98, 0x89, 0x26, 0x17, 0xC2, 0x05, 0xD2, 0xEC, 0x08, 0xD0, 0x8C, 0xFF, 0x17, 0x52, 0x8C, 0xC5, 0x07, 0x93, 0x03, 0xB1, 0xF6, 0x2F, 0xB8, 0x1C, 0x52, 0x47, 0x27, 0x1B, 0xDB, 0xD1, 0x8D, 0x9D, 0x69, 0x1D, 0x52, 0x4B, 0x32, 0x81, 0xAA, 0x7F, 0x00, 0xC8, 0xDC, 0xE6, 0xD9, 0xCC, 0xC1, 0x11, 0x2D, 0x37, 0x34, 0x6C, 0xEA, 0x02, 0x97, 0x4B, 0x0E, 0xBB, 0xB1, 0x71, 0x33, 0x09, 0x15, 0xFD, 0xDD, 0x23, 0x87, 0x07, 0x5E, 0x89, 0xAB, 0x6B, 0x7C, 0x5F, 0xEC, 0xA6, 0x24, 0xDC, 0x53, }; static unsigned char dh1024_g[] = { 0x02, }; DH *dh; BIGNUM *dh_p = NULL, *dh_g = NULL; if ((dh = DH_new()) == NULL) return NULL; dh_p = BN_bin2bn(dh1024_p, sizeof(dh1024_p), NULL); dh_g = BN_bin2bn(dh1024_g, sizeof(dh1024_g), NULL); if (dh_p == NULL || dh_g == NULL) goto err; if (!DH_set0_pqg(dh, dh_p, NULL, dh_g)) goto err; return dh; err: BN_free(dh_p); BN_free(dh_g); DH_free(dh); return NULL; } static DH * get_dh1024dsa(void) { static unsigned char dh1024_p[] = { 0xC8, 0x00, 0xF7, 0x08, 0x07, 0x89, 0x4D, 0x90, 0x53, 0xF3, 0xD5, 0x00, 0x21, 0x1B, 0xF7, 0x31, 0xA6, 0xA2, 0xDA, 0x23, 0x9A, 0xC7, 0x87, 0x19, 0x3B, 0x47, 0xB6, 0x8C, 0x04, 0x6F, 0xFF, 0xC6, 0x9B, 0xB8, 0x65, 0xD2, 0xC2, 0x5F, 0x31, 0x83, 0x4A, 0xA7, 0x5F, 0x2F, 0x88, 0x38, 0xB6, 0x55, 0xCF, 0xD9, 0x87, 0x6D, 0x6F, 0x9F, 0xDA, 0xAC, 0xA6, 0x48, 0xAF, 0xFC, 0x33, 0x84, 0x37, 0x5B, 0x82, 0x4A, 0x31, 0x5D, 0xE7, 0xBD, 0x52, 0x97, 0xA1, 0x77, 0xBF, 0x10, 0x9E, 0x37, 0xEA, 0x64, 0xFA, 0xCA, 0x28, 0x8D, 0x9D, 0x3B, 0xD2, 0x6E, 0x09, 0x5C, 0x68, 0xC7, 0x45, 0x90, 0xFD, 0xBB, 0x70, 0xC9, 0x3A, 0xBB, 0xDF, 0xD4, 0x21, 0x0F, 0xC4, 0x6A, 0x3C, 0xF6, 0x61, 0xCF, 0x3F, 0xD6, 0x13, 0xF1, 0x5F, 0xBC, 0xCF, 0xBC, 0x26, 0x9E, 0xBC, 0x0B, 0xBD, 0xAB, 0x5D, 0xC9, 0x54, 0x39, }; static unsigned char dh1024_g[] = { 0x3B, 0x40, 0x86, 0xE7, 0xF3, 0x6C, 0xDE, 0x67, 0x1C, 0xCC, 0x80, 0x05, 0x5A, 0xDF, 0xFE, 0xBD, 0x20, 0x27, 0x74, 0x6C, 0x24, 0xC9, 0x03, 0xF3, 0xE1, 0x8D, 0xC3, 0x7D, 0x98, 0x27, 0x40, 0x08, 0xB8, 0x8C, 0x6A, 0xE9, 0xBB, 0x1A, 0x3A, 0xD6, 0x86, 0x83, 0x5E, 0x72, 0x41, 0xCE, 0x85, 0x3C, 0xD2, 0xB3, 0xFC, 0x13, 0xCE, 0x37, 0x81, 0x9E, 0x4C, 0x1C, 0x7B, 0x65, 0xD3, 0xE6, 0xA6, 0x00, 0xF5, 0x5A, 0x95, 0x43, 0x5E, 0x81, 0xCF, 0x60, 0xA2, 0x23, 0xFC, 0x36, 0xA7, 0x5D, 0x7A, 0x4C, 0x06, 0x91, 0x6E, 0xF6, 0x57, 0xEE, 0x36, 0xCB, 0x06, 0xEA, 0xF5, 0x3D, 0x95, 0x49, 0xCB, 0xA7, 0xDD, 0x81, 0xDF, 0x80, 0x09, 0x4A, 0x97, 0x4D, 0xA8, 0x22, 0x72, 0xA1, 0x7F, 0xC4, 0x70, 0x56, 0x70, 0xE8, 0x20, 0x10, 0x18, 0x8F, 0x2E, 0x60, 0x07, 0xE7, 0x68, 0x1A, 0x82, 0x5D, 0x32, 0xA2, }; DH *dh; BIGNUM *dh_p = NULL, *dh_g = NULL; if ((dh = DH_new()) == NULL) return NULL; dh_p = BN_bin2bn(dh1024_p, sizeof(dh1024_p), NULL); dh_g = BN_bin2bn(dh1024_g, sizeof(dh1024_g), NULL); if (dh_p == NULL || dh_g == NULL) goto err; if (!DH_set0_pqg(dh, dh_p, NULL, dh_g)) goto err; DH_set_length(dh, 160); return dh; err: BN_free(dh_p); BN_free(dh_g); DH_free(dh); return NULL; }