xref: /openbsd-current/regress/lib/libssl/ssl/ssltest.c

/* ssl/ssltest.c */
/* 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.
 */

#define _BSD_SOURCE 1		/* Or gethostname won't be declared properly
				   on Linux and GNU platforms. */
#include <sys/types.h>
#include <sys/socket.h>

#include <netinet/in.h>

#include <assert.h>
#include <errno.h>
#include <limits.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>

#include <ctype.h>

#include <openssl/opensslconf.h>
#include <openssl/bio.h>
#include <openssl/crypto.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/ssl.h>
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif
#include <openssl/err.h>
#include <openssl/rand.h>
#include <openssl/rsa.h>
#include <openssl/dsa.h>
#include <openssl/dh.h>
#include <openssl/bn.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);
#define APP_CALLBACK_STRING "Test Callback Argument"
struct app_verify_arg {
	char *string;
	int app_verify;
	int allow_proxy_certs;
	char *proxy_auth;
	char *proxy_cond;
};

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.
	 */
	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 ||
	    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 <val> - set proxy policy rights\n");
	fprintf(stderr, " -proxy_cond <val> - 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 <val>    - number of connections to perform\n");
	fprintf(stderr, " -bytes <val>  - 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        - use DTLSv1\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 <string> - have client side offer ALPN\n");
	fprintf(stderr, " -alpn_server <string> - have server side offer ALPN\n");
	fprintf(stderr, " -alpn_expected <string> - the ALPN protocol that should be negotiated\n");
}

static void
print_details(SSL *c_ssl, const char *prefix)
{
	const SSL_CIPHER *ciph;
	X509 *cert;

	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));
	cert = SSL_get_peer_certificate(c_ssl);
	if (cert != NULL) {
		EVP_PKEY *pkey = X509_get_pubkey(cert);
		if (pkey != NULL) {
			if (pkey->type == EVP_PKEY_RSA &&
			    pkey->pkey.rsa != NULL &&
			    pkey->pkey.rsa->n != NULL) {
				BIO_printf(bio_stdout, ", %d bit RSA",
				    BN_num_bits(pkey->pkey.rsa->n));
			} else if (pkey->type == EVP_PKEY_DSA &&
			    pkey->pkey.dsa != NULL &&
			    pkey->pkey.dsa->p != NULL) {
				BIO_printf(bio_stdout, ", %d bit DSA",
				    BN_num_bits(pkey->pkey.dsa->p));
			}
			EVP_PKEY_free(pkey);
		}
		X509_free(cert);
	}
	/* 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");
}

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 = 0, ret = 1;
	int client_auth = 0;
	int server_auth = 0, i;
	struct app_verify_arg app_verify_arg =
	    { APP_CALLBACK_STRING, 0, 0, NULL, NULL };
	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;
	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, "-proxy_auth") == 0) {
			if (--argc < 1)
				goto bad;
			app_verify_arg.proxy_auth= *(++argv);
		} else if (strcmp(*argv, "-proxy_cond") == 0) {
			if (--argc < 1)
				goto bad;
			app_verify_arg.proxy_cond= *(++argv);
		} 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") == 0)
			dtls1 = 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 (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) {
			app_verify_arg.app_verify = 1;
		} else if (strcmp(*argv, "-proxy") == 0) {
			app_verify_arg.allow_proxy_certs = 1;
		} 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 && !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)
		meth = DTLSv1_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;
	}

	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_file(s_ctx, server_cert,
	    SSL_FILETYPE_PEM)) {
		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_file(c_ctx, client_cert,
		    SSL_FILETYPE_PEM);
		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);
		if (bio_pair)
			ret = doit_biopair(s_ssl, c_ssl, bytes, &s_time,
			    &c_time);
		else
			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);

#ifndef OPENSSL_NO_ENGINE
	ENGINE_cleanup();
#endif
	CRYPTO_cleanup_all_ex_data();
	ERR_free_strings();
	ERR_remove_thread_state(NULL);
	EVP_cleanup();
	CRYPTO_mem_leaks(bio_err);
	BIO_free(bio_err);

	exit(ret);
	return ret;
}

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;
}


#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
get_proxy_auth_ex_data_idx(void)
{
	static volatile int idx = -1;
	if (idx < 0) {
		CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
		if (idx < 0) {
			idx = X509_STORE_CTX_get_ex_new_index(0,
			    "SSLtest for verify callback", NULL, NULL, NULL);
		}
		CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
	}
	return idx;
}

static int
verify_callback(int ok, X509_STORE_CTX *ctx)
{
	char *s, buf[256];

	s = X509_NAME_oneline(X509_get_subject_name(ctx->current_cert), buf,
	    sizeof buf);
	if (s != NULL) {
		if (ok)
			fprintf(stderr, "depth=%d %s\n",
			    ctx->error_depth, buf);
		else {
			fprintf(stderr, "depth=%d error=%d %s\n",
			    ctx->error_depth, ctx->error, buf);
		}
	}

	if (ok == 0) {
		fprintf(stderr, "Error string: %s\n",
		    X509_verify_cert_error_string(ctx->error));
		switch (ctx->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;
		}
	}

	if (ok == 1) {
		X509 *xs = ctx->current_cert;
#if 0
		X509 *xi = ctx->current_issuer;
#endif

		if (xs->ex_flags & EXFLAG_PROXY) {
			unsigned int *letters =
			    X509_STORE_CTX_get_ex_data(ctx,
			    get_proxy_auth_ex_data_idx());

			if (letters) {
				int found_any = 0;
				int i;
				PROXY_CERT_INFO_EXTENSION *pci =
				    X509_get_ext_d2i(xs, NID_proxyCertInfo,
				    NULL, NULL);

				switch (OBJ_obj2nid(pci->proxyPolicy->policyLanguage)) {
				case NID_Independent:
					/* Completely meaningless in this
					   program, as there's no way to
					   grant explicit rights to a
					   specific PrC.  Basically, using
					   id-ppl-Independent is the perfect
					   way to grant no rights at all. */
					fprintf(stderr, "  Independent proxy certificate");
					for (i = 0; i < 26; i++)
						letters[i] = 0;
					break;
				case NID_id_ppl_inheritAll:
					/* This is basically a NOP, we
					   simply let the current rights
					   stand as they are. */
					fprintf(stderr, "  Proxy certificate inherits all");
					break;
				default:
					s = (char *)
					pci->proxyPolicy->policy->data;
					i = pci->proxyPolicy->policy->length;

					/* The algorithm works as follows:
					   it is assumed that previous
					   iterations or the initial granted
					   rights has already set some elements
					   of `letters'.  What we need to do is
					   to clear those that weren't granted
					   by the current PrC as well.  The
					   easiest way to do this is to add 1
					   to all the elements whose letters
					   are given with the current policy.
					   That way, all elements that are set
					   by the current policy and were
					   already set by earlier policies and
					   through the original grant of rights
					   will get the value 2 or higher.
					   The last thing to do is to sweep
					   through `letters' and keep the
					   elements having the value 2 as set,
					   and clear all the others. */

					fprintf(stderr, "  Certificate proxy rights = %*.*s", i, i, s);
					while (i-- > 0) {
						int c = *s++;
						if (isascii(c) && isalpha(c)) {
							if (islower(c))
								c = toupper(c);
							letters[c - 'A']++;
						}
					}
					for (i = 0; i < 26; i++)
						if (letters[i] < 2)
							letters[i] = 0;
					else
						letters[i] = 1;
				}

				found_any = 0;
				fprintf(stderr, ", resulting proxy rights = ");
				for (i = 0; i < 26; i++)
					if (letters[i]) {
					fprintf(stderr, "%c", i + 'A');
					found_any = 1;
				}
				if (!found_any)
					fprintf(stderr, "none");
				fprintf(stderr, "\n");

				PROXY_CERT_INFO_EXTENSION_free(pci);
			}
		}
	}

	return (ok);
}

static void
process_proxy_debug(int indent, const char *format, ...)
{
	static const char indentation[] =
	    ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"
	    ">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>"; /* That's 80 > */
	char my_format[256];
	va_list args;

	(void) snprintf(my_format, sizeof(my_format), "%*.*s %s",
	    indent, indent, indentation, format);

	va_start(args, format);
	vfprintf(stderr, my_format, args);
	va_end(args);
}
/* Priority levels:
   0	[!]var, ()
   1	& ^
   2	|
*/
static int process_proxy_cond_adders(unsigned int letters[26],
    const char *cond, const char **cond_end, int *pos, int indent);

static int
process_proxy_cond_val(unsigned int letters[26], const char *cond,
    const char **cond_end, int *pos, int indent)
{
	int c;
	int ok = 1;
	int negate = 0;

	while (isspace((int)*cond)) {
		cond++;
		(*pos)++;
	}
	c = *cond;

	if (debug)
		process_proxy_debug(indent,
		    "Start process_proxy_cond_val at position %d: %s\n",
		    *pos, cond);

	while (c == '!') {
		negate = !negate;
		cond++;
		(*pos)++;
		while (isspace((int)*cond)) {
			cond++;
			(*pos)++;
		}
		c = *cond;
	}

	if (c == '(') {
		cond++;
		(*pos)++;
		ok = process_proxy_cond_adders(letters, cond, cond_end, pos,
		    indent + 1);
		cond = *cond_end;
		if (ok < 0)
			goto end;
		while (isspace((int)*cond)) {
			cond++;
			(*pos)++;
		}
		c = *cond;
		if (c != ')') {
			fprintf(stderr,
			    "Weird condition character in position %d: "
			    "%c\n", *pos, c);
			ok = -1;
			goto end;
		}
		cond++;
		(*pos)++;
	} else if (isascii(c) && isalpha(c)) {
		if (islower(c))
			c = toupper(c);
		ok = letters[c - 'A'];
		cond++;
		(*pos)++;
	} else {
		fprintf(stderr,
		    "Weird condition character in position %d: "
		    "%c\n", *pos, c);
		ok = -1;
		goto end;
	}
end:
	*cond_end = cond;
	if (ok >= 0 && negate)
		ok = !ok;

	if (debug)
		process_proxy_debug(indent,
		    "End process_proxy_cond_val at position %d: %s, returning %d\n",
		    *pos, cond, ok);

	return ok;
}

static int
process_proxy_cond_multipliers(unsigned int letters[26], const char *cond,
    const char **cond_end, int *pos, int indent)
{
	int ok;
	char c;

	if (debug)
		process_proxy_debug(indent,
		    "Start process_proxy_cond_multipliers at position %d: %s\n",
		    *pos, cond);

	ok = process_proxy_cond_val(letters, cond, cond_end, pos, indent + 1);
	cond = *cond_end;
	if (ok < 0)
		goto end;

	while (ok >= 0) {
		while (isspace((int)*cond)) {
			cond++;
			(*pos)++;
		}
		c = *cond;

		switch (c) {
		case '&':
		case '^':
			{
				int save_ok = ok;

				cond++;
				(*pos)++;
				ok = process_proxy_cond_val(letters,
				    cond, cond_end, pos, indent + 1);
				cond = *cond_end;
				if (ok < 0)
					break;

				switch (c) {
				case '&':
					ok &= save_ok;
					break;
				case '^':
					ok ^= save_ok;
					break;
				default:
					fprintf(stderr, "SOMETHING IS SERIOUSLY WRONG!"
					    " STOPPING\n");
					exit(1);
				}
			}
			break;
		default:
			goto end;
		}
	}
end:
	if (debug)
		process_proxy_debug(indent,
		    "End process_proxy_cond_multipliers at position %d: %s, "
		    "returning %d\n",
		    *pos, cond, ok);

	*cond_end = cond;
	return ok;
}

static int
process_proxy_cond_adders(unsigned int letters[26], const char *cond,
    const char **cond_end, int *pos, int indent)
{
	int ok;
	char c;

	if (debug)
		process_proxy_debug(indent,
		    "Start process_proxy_cond_adders at position %d: %s\n",
		    *pos, cond);

	ok = process_proxy_cond_multipliers(letters, cond, cond_end, pos,
	    indent + 1);
	cond = *cond_end;
	if (ok < 0)
		goto end;

	while (ok >= 0) {
		while (isspace((int)*cond)) {
			cond++;
			(*pos)++;
		}
		c = *cond;

		switch (c) {
		case '|':
			{
				int save_ok = ok;

				cond++;
				(*pos)++;
				ok = process_proxy_cond_multipliers(letters,
				    cond, cond_end, pos, indent + 1);
				cond = *cond_end;
				if (ok < 0)
					break;

				switch (c) {
				case '|':
					ok |= save_ok;
					break;
				default:
					fprintf(stderr, "SOMETHING IS SERIOUSLY WRONG!"
					    " STOPPING\n");
					exit(1);
				}
			}
			break;
		default:
			goto end;
		}
	}
end:
	if (debug)
		process_proxy_debug(indent,
		    "End process_proxy_cond_adders at position %d: %s, returning %d\n",
		    *pos, cond, ok);

	*cond_end = cond;
	return ok;
}

static int
process_proxy_cond(unsigned int letters[26], const char *cond,
    const char **cond_end)
{
	int pos = 1;
	return process_proxy_cond_adders(letters, cond, cond_end, &pos, 1);
}

static int
app_verify_callback(X509_STORE_CTX *ctx, void *arg)
{
	int ok = 1;
	struct app_verify_arg *cb_arg = arg;
	unsigned int letters[26]; /* only used with proxy_auth */

	if (cb_arg->app_verify) {
		char *s = NULL, buf[256];

		fprintf(stderr, "In app_verify_callback, allowing cert. ");
		fprintf(stderr, "Arg is: %s\n", cb_arg->string);
		fprintf(stderr, "Finished printing do we have a context? 0x%p a cert? 0x%p\n",
		    (void *)ctx, (void *)ctx->cert);
		if (ctx->cert)
			s = X509_NAME_oneline(X509_get_subject_name(ctx->cert), buf, 256);
		if (s != NULL) {
			fprintf(stderr, "cert depth=%d %s\n", ctx->error_depth, buf);
		}
		return (1);
	}
	if (cb_arg->proxy_auth) {
		int found_any = 0, i;
		char *sp;

		for (i = 0; i < 26; i++)
			letters[i] = 0;
		for (sp = cb_arg->proxy_auth; *sp; sp++) {
			int c = *sp;
			if (isascii(c) && isalpha(c)) {
				if (islower(c))
					c = toupper(c);
				letters[c - 'A'] = 1;
			}
		}

		fprintf(stderr, "  Initial proxy rights = ");
		for (i = 0; i < 26; i++)
			if (letters[i]) {
			fprintf(stderr, "%c", i + 'A');
			found_any = 1;
		}
		if (!found_any)
			fprintf(stderr, "none");
		fprintf(stderr, "\n");

		X509_STORE_CTX_set_ex_data(ctx,
		    get_proxy_auth_ex_data_idx(), letters);
	}
	if (cb_arg->allow_proxy_certs) {
		X509_STORE_CTX_set_flags(ctx, X509_V_FLAG_ALLOW_PROXY_CERTS);
	}

	ok = X509_verify_cert(ctx);

	if (cb_arg->proxy_auth) {
		if (ok > 0) {
			const char *cond_end = NULL;

			ok = process_proxy_cond(letters,
			    cb_arg->proxy_cond, &cond_end);

			if (ok < 0)
				exit(3);
			if (*cond_end) {
				fprintf(stderr, "Stopped processing condition before it's end.\n");
				ok = 0;
			}
			if (!ok)
				fprintf(stderr, "Proxy rights check with condition '%s' proved invalid\n",
				    cb_arg->proxy_cond);
			else
				fprintf(stderr, "Proxy rights check with condition '%s' proved valid\n",
				    cb_arg->proxy_cond);
		}
	}
	return (ok);
}

/* 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()
{
	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;

	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)) {
		DH_free(dh);
		return (NULL);
	}
	return (dh);
}

static DH *
get_dh1024dsa()
{
	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;

	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)) {
		DH_free(dh);
		return (NULL);
	}
	dh->length = 160;
	return (dh);
}