/*

 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the OpenSSL license (the "License").  You may not use

 * this file except in compliance with the License.  You can obtain a copy

 * in the file LICENSE in the source distribution or at

 * https://www.openssl.org/source/license.html

 */

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <openssl/opensslconf.h>

#ifndef OPENSSL_NO_SOCK

#include "apps.h"

#include "progs.h"

#include <openssl/x509.h>

#include <openssl/ssl.h>

#include <openssl/pem.h>

#include "s_apps.h"

#include <openssl/err.h>

#include <internal/sockets.h>

#if !defined(OPENSSL_SYS_MSDOS)

# include OPENSSL_UNISTD

#endif

#define SSL_CONNECT_NAME        "localhost:4433"

#define SECONDS 30

#define SECONDSSTR "30"

static SSL *doConnection(SSL *scon, const char *host, SSL_CTX *ctx);

/*

 * Define a HTTP get command globally.

 * Also define the size of the command, this is two bytes less than

 * the size of the string because the %s is replaced by the URL.

 */

static const char fmt_http_get_cmd[] = "GET %s HTTP/1.0\r\n\r\n";

static const size_t fmt_http_get_cmd_size = sizeof(fmt_http_get_cmd) - 2;

typedef enum OPTION_choice {

    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,

    OPT_CONNECT, OPT_CIPHER, OPT_CIPHERSUITES, OPT_CERT, OPT_NAMEOPT, OPT_KEY,

    OPT_CAPATH, OPT_CAFILE, OPT_NOCAPATH, OPT_NOCAFILE, OPT_NEW, OPT_REUSE,

    OPT_BUGS, OPT_VERIFY, OPT_TIME, OPT_SSL3,

    OPT_WWW

} OPTION_CHOICE;

const OPTIONS s_time_options[] = {

    {"help", OPT_HELP, '-', "Display this summary"},

    {"connect", OPT_CONNECT, 's',

     "Where to connect as post:port (default is " SSL_CONNECT_NAME ")"},

    {"cipher", OPT_CIPHER, 's', "TLSv1.2 and below cipher list to be used"},

    {"ciphersuites", OPT_CIPHERSUITES, 's',

     "Specify TLSv1.3 ciphersuites to be used"},

    {"cert", OPT_CERT, '<', "Cert file to use, PEM format assumed"},

    {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},

    {"key", OPT_KEY, '<', "File with key, PEM; default is -cert file"},

    {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"},

    {"cafile", OPT_CAFILE, '<', "PEM format file of CA's"},

    {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"},

    {"no-CAfile", OPT_NOCAFILE, '-',

     "Do not load the default certificates file"},

    {"no-CApath", OPT_NOCAPATH, '-',

     "Do not load certificates from the default certificates directory"},

    {"new", OPT_NEW, '-', "Just time new connections"},

    {"reuse", OPT_REUSE, '-', "Just time connection reuse"},

    {"bugs", OPT_BUGS, '-', "Turn on SSL bug compatibility"},

    {"verify", OPT_VERIFY, 'p',

     "Turn on peer certificate verification, set depth"},

    {"time", OPT_TIME, 'p', "Seconds to collect data, default " SECONDSSTR},

    {"www", OPT_WWW, 's', "Fetch specified page from the site"},

#ifndef OPENSSL_NO_SSL3

    {"ssl3", OPT_SSL3, '-', "Just use SSLv3"},

#endif

    {NULL}

};

#define START   0

#define STOP    1

static double tm_Time_F(int s)

{

    return app_tminterval(s, 1);

}

int s_time_main(int argc, char **argv)

{

    char buf[1024 * 8];

    SSL *scon = NULL;

    SSL_CTX *ctx = NULL;

    const SSL_METHOD *meth = NULL;

    char *CApath = NULL, *CAfile = NULL, *cipher = NULL, *ciphersuites = NULL;

    char *www_path = NULL;

    char *host = SSL_CONNECT_NAME, *certfile = NULL, *keyfile = NULL, *prog;

    double totalTime = 0.0;

    int noCApath = 0, noCAfile = 0;

    int maxtime = SECONDS, nConn = 0, perform = 3, ret = 1, i, st_bugs = 0;

    long bytes_read = 0, finishtime = 0;

    OPTION_CHOICE o;

    int max_version = 0, ver, buf_len;

    size_t buf_size;

    meth = TLS_client_method();

    prog = opt_init(argc, argv, s_time_options);

    while ((o = opt_next()) != OPT_EOF) {

        switch (o) {

        case OPT_EOF:

        case OPT_ERR:

 opthelp:

            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);

            goto end;

        case OPT_HELP:

            opt_help(s_time_options);

            ret = 0;

            goto end;

        case OPT_CONNECT:

            host = opt_arg();

            break;

        case OPT_REUSE:

            perform = 2;

            break;

        case OPT_NEW:

            perform = 1;

            break;

        case OPT_VERIFY:

            if (!opt_int(opt_arg(), &verify_args.depth))

                goto opthelp;

            BIO_printf(bio_err, "%s: verify depth is %d\n",

                       prog, verify_args.depth);

            break;

        case OPT_CERT:

            certfile = opt_arg();

            break;

        case OPT_NAMEOPT:

            if (!set_nameopt(opt_arg()))

                goto end;

            break;

        case OPT_KEY:

            keyfile = opt_arg();

            break;

        case OPT_CAPATH:

            CApath = opt_arg();

            break;

        case OPT_CAFILE:

            CAfile = opt_arg();

            break;

        case OPT_NOCAPATH:

            noCApath = 1;

            break;

        case OPT_NOCAFILE:

            noCAfile = 1;

            break;

        case OPT_CIPHER:

            cipher = opt_arg();

            break;

        case OPT_CIPHERSUITES:

            ciphersuites = opt_arg();

            break;

        case OPT_BUGS:

            st_bugs = 1;

            break;

        case OPT_TIME:

            if (!opt_int(opt_arg(), &maxtime))

                goto opthelp;

            break;

        case OPT_WWW:

            www_path = opt_arg();

            buf_size = strlen(www_path) + fmt_http_get_cmd_size;

            if (buf_size > sizeof(buf)) {

                BIO_printf(bio_err, "%s: -www option is too long\n", prog);

                goto end;

            }

            break;

        case OPT_SSL3:

            max_version = SSL3_VERSION;

            break;

        }

    }

    argc = opt_num_rest();

    if (argc != 0)

        goto opthelp;

    if (cipher == NULL)

        cipher = getenv("SSL_CIPHER");

    if ((ctx = SSL_CTX_new(meth)) == NULL)

        goto end;

    SSL_CTX_set_mode(ctx, SSL_MODE_AUTO_RETRY);

    SSL_CTX_set_quiet_shutdown(ctx, 1);

    if (SSL_CTX_set_max_proto_version(ctx, max_version) == 0)

        goto end;

    if (st_bugs)

        SSL_CTX_set_options(ctx, SSL_OP_ALL);

    if (cipher != NULL && !SSL_CTX_set_cipher_list(ctx, cipher))

        goto end;

    if (ciphersuites != NULL && !SSL_CTX_set_ciphersuites(ctx, ciphersuites))

        goto end;

    if (!set_cert_stuff(ctx, certfile, keyfile))

        goto end;

    if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) {

        ERR_print_errors(bio_err);

        goto end;

    }

    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, host, ctx)) == NULL)

            goto end;

        if (www_path != NULL) {

            buf_len = BIO_snprintf(buf, sizeof(buf), fmt_http_get_cmd,

                                   www_path);

            if (buf_len <= 0 || SSL_write(scon, buf, buf_len) <= 0)

                goto end;

            while ((i = SSL_read(scon, buf, sizeof(buf))) > 0)

                bytes_read += i;

        }

        SSL_set_shutdown(scon, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);

        BIO_closesocket(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

                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, host, ctx)) == NULL) {

        BIO_printf(bio_err, "Unable to get connection\n");

        goto end;

    }

    if (www_path != NULL) {

        buf_len = BIO_snprintf(buf, sizeof(buf), fmt_http_get_cmd, www_path);

        if (buf_len <= 0 || SSL_write(scon, buf, buf_len) <= 0)

            goto end;

        while ((i = SSL_read(scon, buf, sizeof(buf))) > 0)

            continue;

    }

    SSL_set_shutdown(scon, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);

    BIO_closesocket(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, host, ctx)) == NULL)

            goto end;

        if (www_path != NULL) {

            buf_len = BIO_snprintf(buf, sizeof(buf), fmt_http_get_cmd,

                                   www_path);

            if (buf_len <= 0 || SSL_write(scon, buf, buf_len) <= 0)

                goto end;

            while ((i = SSL_read(scon, buf, sizeof(buf))) > 0)

                bytes_read += i;

        }

        SSL_set_shutdown(scon, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN);

        BIO_closesocket(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

                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:

    SSL_free(scon);

    SSL_CTX_free(ctx);

    return ret;

}

/*-

 * doConnection - make a connection

 */

static SSL *doConnection(SSL *scon, const char *host, SSL_CTX *ctx)

{

    BIO *conn;

    SSL *serverCon;

    int i;

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

        return NULL;

    BIO_set_conn_hostname(conn, host);

    BIO_set_conn_mode(conn, BIO_SOCK_NODELAY);

    if (scon == NULL)

        serverCon = SSL_new(ctx);

    else {

        serverCon = scon;

        SSL_set_connect_state(serverCon);

    }

    SSL_set_bio(serverCon, conn, conn);

    /* ok, lets connect */

    i = SSL_connect(serverCon);

    if (i <= 0) {

        BIO_printf(bio_err, "ERROR\n");

        if (verify_args.error != X509_V_OK)

            BIO_printf(bio_err, "verify error:%s\n",

                       X509_verify_cert_error_string(verify_args.error));

        else

            ERR_print_errors(bio_err);

        if (scon == NULL)

            SSL_free(serverCon);

        return NULL;

    }

#if defined(SOL_SOCKET) && defined(SO_LINGER)

    {

        struct linger no_linger;

        int fd;

        no_linger.l_onoff  = 1;

        no_linger.l_linger = 0;

        fd = SSL_get_fd(serverCon);

        if (fd >= 0)

            (void)setsockopt(fd, SOL_SOCKET, SO_LINGER, (char*)&no_linger,

                             sizeof(no_linger));

    }

#endif

    return serverCon;

}

#endif /* OPENSSL_NO_SOCK */