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ok miod@, jsing@

/* $OpenBSD: s_time.c,v 1.4 2015/02/08 10:22:45 doug 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.]
 */

#define NO_SHUTDOWN

/*-----------------------------------------
   s_time - SSL client connection timer program
   Written and donated by Larry Streepy <streepy@healthcare.com>
  -----------------------------------------*/

#include <sys/types.h>
#include <sys/socket.h>

#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include <poll.h>

#include "apps.h"

#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/ssl.h>
#include <openssl/x509.h>

#include "s_apps.h"

#define SSL_CONNECT_NAME	"localhost:4433"

 /*#define TEST_CERT "client.pem" *//* no default cert. */

#define BUFSIZZ 1024*10

#define MYBUFSIZ 1024*8

#undef min
#undef max
#define min(a,b) (((a) < (b)) ? (a) : (b))
#define max(a,b) (((a) > (b)) ? (a) : (b))

#define SECONDS	30
extern int verify_depth;
extern int verify_error;

static void s_time_usage(void);
static int parseArgs(int argc, char **argv);
static SSL *doConnection(SSL * scon);
static void s_time_init(void);

/***********************************************************************
 * Static data declarations
 */

/* static char *port=PORT_STR;*/
static char *host = SSL_CONNECT_NAME;
static char *t_cert_file = NULL;
static char *t_key_file = NULL;
static char *CApath = NULL;
static char *CAfile = NULL;
static char *tm_cipher = NULL;
static int tm_verify = SSL_VERIFY_NONE;
static int maxTime = SECONDS;
static SSL_CTX *tm_ctx = NULL;
static const SSL_METHOD *s_time_meth = NULL;
static char *s_www_path = NULL;
static long bytes_read = 0;
static int st_bugs = 0;
static int perform = 0;
static int t_nbio = 0;

static void
s_time_init(void)
{
	host = SSL_CONNECT_NAME;
	t_cert_file = NULL;
	t_key_file = NULL;
	CApath = NULL;
	CAfile = NULL;
	tm_cipher = NULL;
	tm_verify = SSL_VERIFY_NONE;
	maxTime = SECONDS;
	tm_ctx = NULL;
	s_time_meth = NULL;
	s_www_path = NULL;
	bytes_read = 0;
	st_bugs = 0;
	perform = 0;

	t_nbio = 0;
}

/***********************************************************************
 * usage - display usage message
 */
static void
s_time_usage(void)
{
	static const char umsg[] = "\
-time arg     - max number of seconds to collect data, default %d\n\
-verify arg   - turn on peer certificate verification, arg == depth\n\
-cert arg     - certificate file to use, PEM format assumed\n\
-key arg      - RSA file to use, PEM format assumed, key is in cert file\n\
                file if not specified by this option\n\
-CApath arg   - PEM format directory of CA's\n\
-CAfile arg   - PEM format file of CA's\n\
-cipher       - preferred cipher to use, play with 'openssl ciphers'\n\n";

	printf("usage: s_time <args>\n\n");

	printf("-connect host:port - host:port to connect to (default is %s)\n", SSL_CONNECT_NAME);
	printf("-nbio         - Run with non-blocking IO\n");
	printf("-ssl2         - Just use SSLv2\n");
	printf("-ssl3         - Just use SSLv3\n");
	printf("-bugs         - Turn on SSL bug compatibility\n");
	printf("-new          - Just time new connections\n");
	printf("-reuse        - Just time connection reuse\n");
	printf("-www page     - Retrieve 'page' from the site\n");
	printf(umsg, SECONDS);
}

/***********************************************************************
 * parseArgs - Parse command line arguments and initialize data
 *
 * Returns 0 if ok, -1 on bad args
 */
static int
parseArgs(int argc, char **argv)
{
	int badop = 0;
	const char *errstr;

	verify_depth = 0;
	verify_error = X509_V_OK;

	argc--;
	argv++;

	while (argc >= 1) {
		if (strcmp(*argv, "-connect") == 0) {
			if (--argc < 1)
				goto bad;
			host = *(++argv);
		}
		else if (strcmp(*argv, "-reuse") == 0)
			perform = 2;
		else if (strcmp(*argv, "-new") == 0)
			perform = 1;
		else if (strcmp(*argv, "-verify") == 0) {
			tm_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE;
			if (--argc < 1)
				goto bad;
			verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr);
			if (errstr)
				goto bad;
			BIO_printf(bio_err, "verify depth is %d\n", verify_depth);

		} else if (strcmp(*argv, "-cert") == 0) {

			if (--argc < 1)
				goto bad;
			t_cert_file = *(++argv);

		} else if (strcmp(*argv, "-key") == 0) {

			if (--argc < 1)
				goto bad;
			t_key_file = *(++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, "-cipher") == 0) {

			if (--argc < 1)
				goto bad;
			tm_cipher = *(++argv);
		}
		else if (strcmp(*argv, "-nbio") == 0) {
			t_nbio = 1;
		}
		else if (strcmp(*argv, "-www") == 0) {
			if (--argc < 1)
				goto bad;
			s_www_path = *(++argv);
			if (strlen(s_www_path) > MYBUFSIZ - 100) {
				BIO_printf(bio_err, "-www option too long\n");
				badop = 1;
			}
		} else if (strcmp(*argv, "-bugs") == 0)
			st_bugs = 1;
		else if (strcmp(*argv, "-ssl3") == 0)
			s_time_meth = SSLv3_client_method();
		else if (strcmp(*argv, "-time") == 0) {

			if (--argc < 1)
				goto bad;
			maxTime = strtonum(*(++argv), 0, INT_MAX, &errstr);
			if (errstr)
				goto bad;
		} else {
			BIO_printf(bio_err, "unknown option %s\n", *argv);
			badop = 1;
			break;
		}

		argc--;
		argv++;
	}

	if (perform == 0)
		perform = 3;

	if (badop) {
bad:
		s_time_usage();
		return -1;
	}
	return 0;		/* Valid args */
}

/***********************************************************************
 * TIME - time functions
 */
#define START	0
#define STOP	1

static double
tm_Time_F(int s)
{
	return app_tminterval(s, 1);
}

/***********************************************************************
 * MAIN - main processing area for client
 *			real name depends on MONOLITH
 */
int s_time_main(int, char **);

int
s_time_main(int argc, char **argv)
{
	double totalTime = 0.0;
	int nConn = 0;
	SSL *scon = NULL;
	long finishtime = 0;
	int ret = 1, i;
	char buf[1024 * 8];
	int ver;

	s_time_init();

	s_time_meth = SSLv23_client_method();

	/* parse the command line arguments */
	if (parseArgs(argc, argv) < 0)
		goto end;

	if ((tm_ctx = SSL_CTX_new(s_time_meth)) == NULL)
		return (1);

	SSL_CTX_set_quiet_shutdown(tm_ctx, 1);

	if (st_bugs)
		SSL_CTX_set_options(tm_ctx, SSL_OP_ALL);
	SSL_CTX_set_cipher_list(tm_ctx, tm_cipher);
	if (!set_cert_stuff(tm_ctx, t_cert_file, t_key_file))
		goto end;

	if ((!SSL_CTX_load_verify_locations(tm_ctx, CAfile, CApath)) ||
	    (!SSL_CTX_set_default_verify_paths(tm_ctx))) {
		/*
		 * BIO_printf(bio_err,"error setting default verify
		 * locations\n");
		 */
		ERR_print_errors(bio_err);
		/* goto end; */
	}
	if (tm_cipher == NULL)
		tm_cipher = getenv("SSL_CIPHER");

	if (tm_cipher == NULL) {
		fprintf(stderr, "No CIPHER specified\n");
	}
	if (!(perform & 1))
		goto next;
	printf("Collecting connection statistics for %d seconds\n", maxTime);

	/* Loop and time how long it takes to make connections */

	bytes_read = 0;
	finishtime = (long) time(NULL) + maxTime;
	tm_Time_F(START);
	for (;;) {
		if (finishtime < (long) time(NULL))
			break;
		if ((scon = doConnection(NULL)) == NULL)
			goto end;

		if (s_www_path != NULL) {
			int retval = snprintf(buf, sizeof buf,
			    "GET %s HTTP/1.0\r\n\r\n", s_www_path);
			if ((size_t)retval >= sizeof buf) {
				fprintf(stderr, "URL too long\n");
				goto end;
			}
			SSL_write(scon, buf, strlen(buf));
			while ((i = SSL_read(scon, buf, sizeof(buf))) > 0)
				bytes_read += i;
		}
#ifdef NO_SHUTDOWN
		SSL_set_shutdown(scon, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
#else
		SSL_shutdown(scon);
#endif
		shutdown(SSL_get_fd(scon), SHUT_RDWR);
		close(SSL_get_fd(scon));

		nConn += 1;
		if (SSL_session_reused(scon))
			ver = 'r';
		else {
			ver = SSL_version(scon);
			if (ver == TLS1_VERSION)
				ver = 't';
			else if (ver == SSL3_VERSION)
				ver = '3';
			else if (ver == SSL2_VERSION)
				ver = '2';
			else
				ver = '*';
		}
		fputc(ver, stdout);
		fflush(stdout);

		SSL_free(scon);
		scon = NULL;
	}
	totalTime += tm_Time_F(STOP);	/* Add the time for this iteration */

	i = (int) ((long) time(NULL) - finishtime + maxTime);
	printf("\n\n%d connections in %.2fs; %.2f connections/user sec, bytes read %ld\n", nConn, totalTime, ((double) nConn / totalTime), bytes_read);
	printf("%d connections in %ld real seconds, %ld bytes read per connection\n", nConn, (long) time(NULL) - finishtime + maxTime, bytes_read / nConn);

	/*
	 * Now loop and time connections using the same session id over and
	 * over
	 */

next:
	if (!(perform & 2))
		goto end;
	printf("\n\nNow timing with session id reuse.\n");

	/* Get an SSL object so we can reuse the session id */
	if ((scon = doConnection(NULL)) == NULL) {
		fprintf(stderr, "Unable to get connection\n");
		goto end;
	}
	if (s_www_path != NULL) {
		int retval = snprintf(buf, sizeof buf,
		    "GET %s HTTP/1.0\r\n\r\n", s_www_path);
		if ((size_t)retval >= sizeof buf) {
			fprintf(stderr, "URL too long\n");
			goto end;
		}
		SSL_write(scon, buf, strlen(buf));
		while (SSL_read(scon, buf, sizeof(buf)) > 0);
	}
#ifdef NO_SHUTDOWN
	SSL_set_shutdown(scon, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
#else
	SSL_shutdown(scon);
#endif
	shutdown(SSL_get_fd(scon), SHUT_RDWR);
	close(SSL_get_fd(scon));

	nConn = 0;
	totalTime = 0.0;

	finishtime = (long) time(NULL) + maxTime;

	printf("starting\n");
	bytes_read = 0;
	tm_Time_F(START);

	for (;;) {
		if (finishtime < (long) time(NULL))
			break;
		if ((doConnection(scon)) == NULL)
			goto end;

		if (s_www_path) {
			int retval = snprintf(buf, sizeof buf,
			    "GET %s HTTP/1.0\r\n\r\n", s_www_path);
			if ((size_t)retval >= sizeof buf) {
				fprintf(stderr, "URL too long\n");
				goto end;
			}
			SSL_write(scon, buf, strlen(buf));
			while ((i = SSL_read(scon, buf, sizeof(buf))) > 0)
				bytes_read += i;
		}
#ifdef NO_SHUTDOWN
		SSL_set_shutdown(scon, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);
#else
		SSL_shutdown(scon);
#endif
		shutdown(SSL_get_fd(scon), SHUT_RDWR);
		close(SSL_get_fd(scon));

		nConn += 1;
		if (SSL_session_reused(scon))
			ver = 'r';
		else {
			ver = SSL_version(scon);
			if (ver == TLS1_VERSION)
				ver = 't';
			else if (ver == SSL3_VERSION)
				ver = '3';
			else if (ver == SSL2_VERSION)
				ver = '2';
			else
				ver = '*';
		}
		fputc(ver, stdout);
		fflush(stdout);
	}
	totalTime += tm_Time_F(STOP);	/* Add the time for this iteration */


	printf("\n\n%d connections in %.2fs; %.2f connections/user sec, bytes read %ld\n", nConn, totalTime, ((double) nConn / totalTime), bytes_read);
	printf("%d connections in %ld real seconds, %ld bytes read per connection\n", nConn, (long) time(NULL) - finishtime + maxTime, bytes_read / nConn);

	ret = 0;
end:
	if (scon != NULL)
		SSL_free(scon);

	if (tm_ctx != NULL) {
		SSL_CTX_free(tm_ctx);
		tm_ctx = NULL;
	}

	return (ret);
}

/***********************************************************************
 * doConnection - make a connection
 * Args:
 *		scon	= earlier ssl connection for session id, or NULL
 * Returns:
 *		SSL *	= the connection pointer.
 */
static SSL *
doConnection(SSL * scon)
{
	struct pollfd pfd[1];
	SSL *serverCon;
	BIO *conn;
	int i;

	if ((conn = BIO_new(BIO_s_connect())) == NULL)
		return (NULL);

/*	BIO_set_conn_port(conn,port);*/
	BIO_set_conn_hostname(conn, host);

	if (scon == NULL)
		serverCon = SSL_new(tm_ctx);
	else {
		serverCon = scon;
		SSL_set_connect_state(serverCon);
	}

	SSL_set_bio(serverCon, conn, conn);

	/* ok, lets connect */
	for (;;) {
		i = SSL_connect(serverCon);
		if (BIO_sock_should_retry(i)) {
			BIO_printf(bio_err, "DELAY\n");

			i = SSL_get_fd(serverCon);
			pfd[0].fd = i;
			pfd[0].events = POLLIN;
			poll(pfd, 1, -1);
			continue;
		}
		break;
	}
	if (i <= 0) {
		BIO_printf(bio_err, "ERROR\n");
		if (verify_error != X509_V_OK)
			BIO_printf(bio_err, "verify error:%s\n",
			    X509_verify_cert_error_string(verify_error));
		else
			ERR_print_errors(bio_err);
		if (scon == NULL)
			SSL_free(serverCon);
		return NULL;
	}
	return serverCon;
}