491 lines
13 KiB
C
491 lines
13 KiB
C
/* client.c
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*
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* Copyright (C) 2006-2012 Sawtooth Consulting Ltd.
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*
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* This file is part of CyaSSL.
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*
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* CyaSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* CyaSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <cyassl/ssl.h>
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#include <cyassl/test.h>
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/*
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#define TEST_RESUME
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*/
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#ifdef CYASSL_CALLBACKS
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int handShakeCB(HandShakeInfo*);
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int timeoutCB(TimeoutInfo*);
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Timeval timeout;
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#endif
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#if defined(NON_BLOCKING) || defined(CYASSL_CALLBACKS)
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void NonBlockingSSL_Connect(CYASSL* ssl)
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{
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#ifndef CYASSL_CALLBACKS
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int ret = CyaSSL_connect(ssl);
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#else
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int ret = CyaSSL_connect_ex(ssl, handShakeCB, timeoutCB, timeout);
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#endif
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int error = CyaSSL_get_error(ssl, 0);
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while (ret != SSL_SUCCESS && (error == SSL_ERROR_WANT_READ ||
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error == SSL_ERROR_WANT_WRITE)) {
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if (error == SSL_ERROR_WANT_READ)
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printf("... client would read block\n");
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else
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printf("... client would write block\n");
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#ifdef USE_WINDOWS_API
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Sleep(100);
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#else
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sleep(1);
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#endif
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#ifndef CYASSL_CALLBACKS
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ret = CyaSSL_connect(ssl);
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#else
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ret = CyaSSL_connect_ex(ssl, handShakeCB, timeoutCB, timeout);
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#endif
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error = CyaSSL_get_error(ssl, 0);
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}
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if (ret != SSL_SUCCESS)
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err_sys("SSL_connect failed");
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}
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#endif
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static void Usage(void)
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{
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printf("client " LIBCYASSL_VERSION_STRING
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" NOTE: All files relative to CyaSSL home dir\n");
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printf("-? Help, print this usage\n");
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printf("-h <host> Host to connect to, default %s\n", yasslIP);
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printf("-p <num> Port to connect on, default %d\n", yasslPort);
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printf("-v <num> SSL version [0-3], SSLv3(0) - TLS1.2(3)), default %d\n",
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CLIENT_DEFAULT_VERSION);
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printf("-l <str> Cipher list\n");
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printf("-c <file> Certificate file, default %s\n", cliCert);
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printf("-k <file> Key file, default %s\n", cliKey);
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printf("-A <file> Certificate Authority file, default %s\n", caCert);
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printf("-b <num> Benchmark <num> connections and print stats\n");
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printf("-s Use pre Shared keys\n");
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printf("-d Disable peer checks\n");
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printf("-g Send server HTTP GET\n");
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printf("-u Use UDP DTLS\n");
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printf("-m Match domain name in cert\n");
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}
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void client_test(void* args)
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{
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SOCKET_T sockfd = 0;
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CYASSL_METHOD* method = 0;
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CYASSL_CTX* ctx = 0;
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CYASSL* ssl = 0;
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#ifdef TEST_RESUME
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CYASSL* sslResume = 0;
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CYASSL_SESSION* session = 0;
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char resumeMsg[] = "resuming cyassl!";
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int resumeSz = sizeof(resumeMsg);
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#endif
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char msg[64] = "hello cyassl!";
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char reply[1024];
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int input;
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int msgSz = strlen(msg);
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int port = yasslPort;
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char* host = (char*)yasslIP;
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char* domain = "www.yassl.com";
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int ch;
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int version = CLIENT_DEFAULT_VERSION;
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int usePsk = 0;
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int sendGET = 0;
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int benchmark = 0;
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int doDTLS = 0;
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int matchName = 0;
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int doPeerCheck = 1;
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char* cipherList = NULL;
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char* verifyCert = (char*)caCert;
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char* ourCert = (char*)cliCert;
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char* ourKey = (char*)cliKey;
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int argc = ((func_args*)args)->argc;
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char** argv = ((func_args*)args)->argv;
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((func_args*)args)->return_code = -1; /* error state */
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while ((ch = mygetopt(argc, argv, "?gdusmh:p:v:l:A:c:k:b:")) != -1) {
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switch (ch) {
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case '?' :
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Usage();
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exit(EXIT_SUCCESS);
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case 'g' :
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sendGET = 1;
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break;
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case 'd' :
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doPeerCheck = 0;
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break;
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case 'u' :
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doDTLS = 1;
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version = -1; /* DTLS flag */
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break;
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case 's' :
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usePsk = 1;
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break;
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case 'm' :
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matchName = 1;
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break;
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case 'h' :
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host = myoptarg;
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domain = myoptarg;
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break;
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case 'p' :
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port = atoi(myoptarg);
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break;
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case 'v' :
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version = atoi(myoptarg);
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if (version < 0 || version > 3) {
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Usage();
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exit(MY_EX_USAGE);
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}
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if (doDTLS)
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version = -1; /* DTLS flag */
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break;
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case 'l' :
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cipherList = myoptarg;
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break;
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case 'A' :
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verifyCert = myoptarg;
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break;
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case 'c' :
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ourCert = myoptarg;
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break;
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case 'k' :
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ourKey = myoptarg;
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break;
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case 'b' :
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benchmark = atoi(myoptarg);
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if (benchmark < 0 || benchmark > 1000000) {
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Usage();
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exit(MY_EX_USAGE);
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}
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break;
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default:
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Usage();
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exit(MY_EX_USAGE);
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}
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}
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argc -= myoptind;
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argv += myoptind;
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myoptind = 0; /* reset for test cases */
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switch (version) {
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case 0:
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method = CyaSSLv3_client_method();
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break;
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case 1:
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method = CyaTLSv1_client_method();
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break;
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case 2:
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method = CyaTLSv1_1_client_method();
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break;
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case 3:
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method = CyaTLSv1_2_client_method();
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break;
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#ifdef CYASSL_DTLS
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case -1:
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method = CyaDTLSv1_client_method();
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break;
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#endif
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default:
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err_sys("Bad SSL version");
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}
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if (method == NULL)
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err_sys("unable to get method");
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ctx = CyaSSL_CTX_new(method);
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if (ctx == NULL)
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err_sys("unable to get ctx");
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if (cipherList)
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if (CyaSSL_CTX_set_cipher_list(ctx, cipherList) != SSL_SUCCESS)
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err_sys("can't set cipher list");
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#ifndef NO_PSK
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if (usePsk)
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CyaSSL_CTX_set_psk_client_callback(ctx, my_psk_client_cb);
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#endif
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#ifdef OPENSSL_EXTRA
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CyaSSL_CTX_set_default_passwd_cb(ctx, PasswordCallBack);
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#endif
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#if defined(CYASSL_SNIFFER) && !defined(HAVE_NTRU) && !defined(HAVE_ECC)
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/* don't use EDH, can't sniff tmp keys */
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if (cipherList == NULL)
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if (CyaSSL_CTX_set_cipher_list(ctx, "AES256-SHA") != SSL_SUCCESS)
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err_sys("can't set cipher list");
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#endif
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#ifdef USER_CA_CB
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CyaSSL_CTX_SetCACb(ctx, CaCb);
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#endif
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#ifdef VERIFY_CALLBACK
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CyaSSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, myVerify);
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#endif
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if (CyaSSL_CTX_use_certificate_file(ctx, ourCert, SSL_FILETYPE_PEM)
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!= SSL_SUCCESS)
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err_sys("can't load client cert file, check file and run from"
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" CyaSSL home dir");
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if (CyaSSL_CTX_use_PrivateKey_file(ctx, ourKey, SSL_FILETYPE_PEM)
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!= SSL_SUCCESS)
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err_sys("can't load client cert file, check file and run from"
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" CyaSSL home dir");
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if (CyaSSL_CTX_load_verify_locations(ctx, verifyCert, 0) != SSL_SUCCESS)
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err_sys("can't load ca file, Please run from CyaSSL home dir");
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if (doPeerCheck == 0)
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CyaSSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, 0);
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if (benchmark) {
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/* time passed in number of connects give average */
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int times = benchmark;
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int i = 0;
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double start = current_time(), avg;
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for (i = 0; i < times; i++) {
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tcp_connect(&sockfd, host, port, doDTLS);
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ssl = CyaSSL_new(ctx);
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CyaSSL_set_fd(ssl, sockfd);
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if (CyaSSL_connect(ssl) != SSL_SUCCESS)
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err_sys("SSL_connect failed");
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CyaSSL_shutdown(ssl);
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CyaSSL_free(ssl);
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CloseSocket(sockfd);
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}
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avg = current_time() - start;
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avg /= times;
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avg *= 1000; /* milliseconds */
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printf("CyaSSL_connect avg took: %8.3f milliseconds\n", avg);
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CyaSSL_CTX_free(ctx);
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((func_args*)args)->return_code = 0;
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exit(EXIT_SUCCESS);
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}
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tcp_connect(&sockfd, host, port, doDTLS);
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ssl = CyaSSL_new(ctx);
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if (ssl == NULL)
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err_sys("unable to get SSL object");
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CyaSSL_set_fd(ssl, sockfd);
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#ifdef HAVE_CRL
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CyaSSL_EnableCRL(ssl, CYASSL_CRL_CHECKALL);
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CyaSSL_LoadCRL(ssl, crlPemDir, SSL_FILETYPE_PEM, 0);
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CyaSSL_SetCRL_Cb(ssl, CRL_CallBack);
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#endif
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if (matchName && doPeerCheck)
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CyaSSL_check_domain_name(ssl, domain);
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#ifdef NON_BLOCKING
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tcp_set_nonblocking(&sockfd);
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NonBlockingSSL_Connect(ssl);
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#else
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#ifndef CYASSL_CALLBACKS
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if (CyaSSL_connect(ssl) != SSL_SUCCESS) {/* see note at top of README */
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int err = CyaSSL_get_error(ssl, 0);
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char buffer[80];
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printf("err = %d, %s\n", err, CyaSSL_ERR_error_string(err, buffer));
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err_sys("SSL_connect failed");/* if you're getting an error here */
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}
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#else
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timeout.tv_sec = 2;
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timeout.tv_usec = 0;
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NonBlockingSSL_Connect(ssl); /* will keep retrying on timeout */
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#endif
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#endif
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showPeer(ssl);
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if (sendGET) {
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printf("SSL connect ok, sending GET...\n");
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msgSz = 28;
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strncpy(msg, "GET /index.html HTTP/1.0\r\n\r\n", msgSz);
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}
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if (CyaSSL_write(ssl, msg, msgSz) != msgSz)
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err_sys("SSL_write failed");
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input = CyaSSL_read(ssl, reply, sizeof(reply));
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if (input > 0) {
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reply[input] = 0;
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printf("Server response: %s\n", reply);
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if (sendGET) { /* get html */
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while (1) {
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input = CyaSSL_read(ssl, reply, sizeof(reply));
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if (input > 0) {
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reply[input] = 0;
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printf("%s\n", reply);
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}
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else
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break;
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}
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}
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}
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#ifdef TEST_RESUME
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if (doDTLS) {
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strncpy(msg, "break", 6);
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msgSz = (int)strlen(msg);
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/* try to send session close */
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CyaSSL_write(ssl, msg, msgSz);
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}
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session = CyaSSL_get_session(ssl);
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sslResume = CyaSSL_new(ctx);
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#endif
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CyaSSL_shutdown(ssl);
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CyaSSL_free(ssl);
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CloseSocket(sockfd);
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#ifdef TEST_RESUME
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if (doDTLS) {
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#ifdef USE_WINDOWS_API
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Sleep(500);
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#else
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sleep(1);
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#endif
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}
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tcp_connect(&sockfd, host, port);
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CyaSSL_set_fd(sslResume, sockfd);
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CyaSSL_set_session(sslResume, session);
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showPeer(sslResume);
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if (CyaSSL_connect(sslResume) != SSL_SUCCESS) err_sys("SSL resume failed");
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#ifdef OPENSSL_EXTRA
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if (CyaSSL_session_reused(sslResume))
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printf("reused session id\n");
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else
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printf("didn't reuse session id!!!\n");
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#endif
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if (CyaSSL_write(sslResume, resumeMsg, resumeSz) != resumeSz)
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err_sys("SSL_write failed");
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input = CyaSSL_read(sslResume, reply, sizeof(reply));
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if (input > 0) {
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reply[input] = 0;
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printf("Server resume response: %s\n", reply);
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}
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/* try to send session break */
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CyaSSL_write(sslResume, msg, msgSz);
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CyaSSL_shutdown(sslResume);
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CyaSSL_free(sslResume);
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#endif /* TEST_RESUME */
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CyaSSL_CTX_free(ctx);
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CloseSocket(sockfd);
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((func_args*)args)->return_code = 0;
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}
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/* so overall tests can pull in test function */
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#ifndef NO_MAIN_DRIVER
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int main(int argc, char** argv)
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{
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func_args args;
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StartTCP();
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args.argc = argc;
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args.argv = argv;
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CyaSSL_Init();
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#ifdef DEBUG_CYASSL
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CyaSSL_Debugging_ON();
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#endif
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if (CurrentDir("client") || CurrentDir("build"))
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ChangeDirBack(2);
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client_test(&args);
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CyaSSL_Cleanup();
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return args.return_code;
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}
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int myoptind = 0;
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char* myoptarg = NULL;
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#endif /* NO_MAIN_DRIVER */
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#ifdef CYASSL_CALLBACKS
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int handShakeCB(HandShakeInfo* info)
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{
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return 0;
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}
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int timeoutCB(TimeoutInfo* info)
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{
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return 0;
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}
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#endif
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