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