Ejemplo n.º 1
0
static void test_wolfSSL_CTX_load_verify_locations(void)
{
#if !defined(NO_FILESYSTEM) && !defined(NO_CERTS)
    WOLFSSL_CTX *ctx;

    AssertNotNull(ctx = wolfSSL_CTX_new(wolfSSLv23_client_method()));

    /* invalid context */
    AssertFalse(wolfSSL_CTX_load_verify_locations(NULL, caCert, 0));

    /* invalid ca file */
    AssertFalse(wolfSSL_CTX_load_verify_locations(ctx, NULL,      0));
    AssertFalse(wolfSSL_CTX_load_verify_locations(ctx, bogusFile, 0));

#ifndef WOLFSSL_TIRTOS
    /* invalid path */
    /* not working... investigate! */
    /* AssertFalse(wolfSSL_CTX_load_verify_locations(ctx, caCert, bogusFile)); */
#endif

    /* success */
    AssertTrue(wolfSSL_CTX_load_verify_locations(ctx, caCert, 0));

    wolfSSL_CTX_free(ctx);
#endif
}
Ejemplo n.º 2
0
static void test_client_wolfSSL_new(void)
{
#if !defined(NO_FILESYSTEM) && !defined(NO_CERTS) && !defined(NO_RSA)
    WOLFSSL_CTX *ctx;
    WOLFSSL_CTX *ctx_nocert;
    WOLFSSL *ssl;

    AssertNotNull(ctx_nocert = wolfSSL_CTX_new(wolfSSLv23_client_method()));
    AssertNotNull(ctx        = wolfSSL_CTX_new(wolfSSLv23_client_method()));

    AssertTrue(wolfSSL_CTX_load_verify_locations(ctx, caCert, 0));

    /* invalid context */
    AssertNull(ssl = wolfSSL_new(NULL));

    /* success */
    AssertNotNull(ssl = wolfSSL_new(ctx_nocert));
    wolfSSL_free(ssl);

    /* success */
    AssertNotNull(ssl = wolfSSL_new(ctx));
    wolfSSL_free(ssl);

    wolfSSL_CTX_free(ctx);
    wolfSSL_CTX_free(ctx_nocert);
#endif
}
Ejemplo n.º 3
0
/* Use this callback to setup TLS certificates and verify callbacks */
static int mqttclient_tls_cb(MqttClient* client)
{
    int rc = SSL_FAILURE;
    (void)client; /* Supress un-used argument */

    client->tls.ctx = wolfSSL_CTX_new(wolfTLSv1_2_client_method());
    if (client->tls.ctx) {
        wolfSSL_CTX_set_verify(client->tls.ctx, SSL_VERIFY_PEER, mqttclient_tls_verify_cb);

        if (mTlsFile) {
    #if !defined(NO_FILESYSTEM) && !defined(NO_CERTS)
            /* Load CA certificate file */
            rc = wolfSSL_CTX_load_verify_locations(client->tls.ctx, mTlsFile, 0);
    #else
            rc = SSL_SUCCESS;
    #endif
        }
        else {
            rc = SSL_SUCCESS;
        }
    }

    PRINTF("MQTT TLS Setup (%d)", rc);

    return rc;
}
Ejemplo n.º 4
0
static void* client_thread(void* args)
{
    /* set up client */
    WOLFSSL_CTX* cli_ctx = wolfSSL_CTX_new(wolfTLSv1_2_client_method());
    if (cli_ctx == NULL) err_sys("bad client ctx new");

    int ret = wolfSSL_CTX_load_verify_locations(cli_ctx, cacert, NULL);
    if (ret != SSL_SUCCESS) err_sys("bad ca load");

    wolfSSL_SetIOSend(cli_ctx, ClientSend);
    wolfSSL_SetIORecv(cli_ctx, ClientRecv);

    WOLFSSL* cli_ssl = wolfSSL_new(cli_ctx);
    if (cli_ctx == NULL) err_sys("bad client new");

    ret = wolfSSL_connect(cli_ssl);
    if (ret != SSL_SUCCESS) err_sys("bad client tls connect");
    printf("wolfSSL client success!\n");

    ret = wolfSSL_write(cli_ssl, "hello memory wolfSSL!", 21);

    /* clean up */
    wolfSSL_free(cli_ssl);
    wolfSSL_CTX_free(cli_ctx);

    return NULL;
}
Ejemplo n.º 5
0
static void prvInitialiseWolfSSL( void )
{
int32_t iReturn;

	#ifdef DEBUG_WOLFSSL
	{
		wolfSSL_Debugging_ON();
	}
	#endif

    /* Initialise wolfSSL.  This must be done before any other wolfSSL functions
    are called. */
    wolfSSL_Init();

    /* Attempt to create a context that uses the TLS 1.2 server protocol. */
    xWolfSSL_ServerContext = wolfSSL_CTX_new( wolfTLSv1_2_server_method() );

    if( xWolfSSL_ServerContext != NULL )
    {
        /* Load the CA certificate.  Real applications should ensure that
        wolfSSL_CTX_load_verify_locations() returns SSL_SUCCESS before
		proceeding. */
        iReturn = wolfSSL_CTX_load_verify_locations( xWolfSSL_ServerContext, "ca-cert.pem", 0 );
		configASSERT( iReturn == SSL_SUCCESS );

		iReturn = wolfSSL_CTX_use_certificate_file( xWolfSSL_ServerContext, "server-cert.pem", SSL_FILETYPE_PEM );
		configASSERT( iReturn == SSL_SUCCESS );

		iReturn = wolfSSL_CTX_use_PrivateKey_file( xWolfSSL_ServerContext, "server-key.pem", SSL_FILETYPE_PEM );
		configASSERT( iReturn == SSL_SUCCESS );
    }
}
int Client(const char* ip, word16 port)
{
    int  n;
    char msg[] = "hello wolfssl";
    char reply[MAXSZ]; 
    int  msgSz = strlen(msg);
    SOCKET_T    fd;
    WOLFSSL_CTX* ctx;
    WOLFSSL*     ssl;

    if ((ctx = wolfSSL_CTX_new(wolfTLSv1_2_client_method())) == NULL)
        err_sys("Error in setting client ctx\n");
    
    if (wolfSSL_CTX_load_verify_locations(ctx, caCert, 0) != SSL_SUCCESS)
        err_sys("trouble loading client cert");
    if (wolfSSL_CTX_use_certificate_file(ctx, cliCert, SSL_FILETYPE_PEM)
            != SSL_SUCCESS)
        err_sys("trouble loading client cert");
    if (wolfSSL_CTX_use_PrivateKey_file(ctx, cliKey, SSL_FILETYPE_PEM)
            != SSL_SUCCESS)
        err_sys("trouble loading client cert");

    /*sets the IO callback methods*/
    wolfSSL_SetIORecv(ctx, CbIORecv);
    wolfSSL_SetIOSend(ctx, CbIOSend);

    if ((ssl = wolfSSL_new(ctx)) == NULL)
        err_sys("issue when creating ssl");

    tcp_connect(&fd, ip, port, 0);
    wolfSSL_set_fd(ssl, fd);
    if (wolfSSL_connect(ssl) != SSL_SUCCESS)
        err_sys("client connect failed");

    if (wolfSSL_write(ssl, msg, msgSz) != msgSz)
        err_sys("client write failed");

    memset(reply, 0, MAXSZ);
    if ((n = wolfSSL_read(ssl, reply, MAXSZ - 1)) > 0) {
        reply[n] = '\0';
    }
    else {
        printf("client read returned %d\n", n);
        return -1;
    }
    printf("Server sent : %s\n", reply);

    wolfSSL_shutdown(ssl);
    wolfSSL_free(ssl);
    wolfSSL_CTX_free(ctx);

    return 0;
}
Ejemplo n.º 7
0
int main()
{
    int sockfd; 
    WOLFSSL_CTX* ctx;
    WOLFSSL* ssl;
    WOLFSSL_METHOD* method;
    struct  sockaddr_in servAddr;
    const char message[] = "Hello, World!";

    /* create and set up socket */
    sockfd = socket(AF_INET, SOCK_STREAM, 0); 
    memset(&servAddr, 0, sizeof(servAddr)); 
    servAddr.sin_family = AF_INET;   
    servAddr.sin_port = htons(SERV_PORT); 

    /* connect to socket */
    connect(sockfd, (struct sockaddr *) &servAddr, sizeof(servAddr)); 

    /* initialize wolfssl library */
    wolfSSL_Init(); 

    method = wolfTLSv1_2_client_method(); /* use TLS v1.2 */

    /* make new ssl context */
    if ( (ctx = wolfSSL_CTX_new(method)) == NULL) {
        err_sys("wolfSSL_CTX_new error");
    }

    /* make new wolfSSL struct */
    if ( (ssl = wolfSSL_new(ctx)) == NULL) {
        err_sys("wolfSSL_new error");
    }

    /* Add cert to ctx */
    if (wolfSSL_CTX_load_verify_locations(ctx, "certs/ca-cert.pem", 0) != 
                SSL_SUCCESS) {
        err_sys("Error loading certs/ca-cert.pem");
    }

    /* Connect wolfssl to the socket, server, then send message */
    wolfSSL_set_fd(ssl, sockfd); 
    wolfSSL_connect(ssl); 
    wolfSSL_write(ssl, message, strlen(message));

    /* frees all data before client termination */
    wolfSSL_free(ssl);
    wolfSSL_CTX_free(ctx);
    wolfSSL_Cleanup();
}
/* Initialize the wolfSSL library and create a wolfSSL context.
 *
 * version     The protocol version.
 * cert        The client certificate for client authentication.
 * key         The client private key for client authentication.
 * verifyCert  The CA certificate for server authentication.
 * cipherList  The list of ciphers, as a string, to negotiate.
 * wolfsslCtx  The new wolfSSL context object.
 * returns EXIT_SUCCESS when a wolfSSL context object is created and
 * EXIT_FAILURE otherwise.
 */
static int WolfSSLCtx_Init(int version, char* cert, char* key, char* verifyCert,
                           char* cipherList, WOLFSSL_CTX** wolfsslCtx)
{
    WOLFSSL_CTX* ctx;
    wolfSSL_method_func method = NULL;

    method = SSL_GetMethod(version);
    if (method == NULL)
        return(EXIT_FAILURE);

    /* Create and initialize WOLFSSL_CTX structure */
    if ((ctx = wolfSSL_CTX_new(method(NULL))) == NULL) {
        fprintf(stderr, "wolfSSL_CTX_new error.\n");
        return(EXIT_FAILURE);
    }

#ifdef WOLFSSL_ASYNC_CRYPT
    if (wolfAsync_DevOpen(&devId) != 0) {
        fprintf(stderr, "Async device open failed\nRunning without async\n");
    }

    wolfSSL_CTX_UseAsync(ctx, devId);
#endif

    if (cipherList) {
        if (wolfSSL_CTX_set_cipher_list(ctx, cipherList) != SSL_SUCCESS)
            err_sys("client can't set cipher list 1");
    }

    /* load CA certificates into wolfSSL_CTX. which will verify the server */
    if (wolfSSL_CTX_load_verify_locations(ctx, verifyCert, 0) != SSL_SUCCESS) {
        printf("Error loading %s. Please check the file.\n", verifyCert);
        return EXIT_FAILURE;
    }

    if (wolfSSL_CTX_use_certificate_chain_file(ctx, cert) != SSL_SUCCESS) {
        printf("Error loading %s. Please check the file.\n", cert);
        return EXIT_FAILURE;
    }

    if (wolfSSL_CTX_use_PrivateKey_file(ctx, key, SSL_FILETYPE_PEM)
                                     != SSL_SUCCESS) {
        printf("Error loading %s. Please check the file.\n", key);
        return EXIT_FAILURE;
    }

    *wolfsslCtx = ctx;
    return EXIT_SUCCESS;
}
Ejemplo n.º 9
0
/*
 * applies TLS 1.2 security layer to data being sent.
 */
int Security(int sock)
{
    WOLFSSL_CTX* ctx;
    WOLFSSL*     ssl;    /* create WOLFSSL object */
    int         ret = 0;

    wolfSSL_Init();      /* initialize wolfSSL */

    /* create and initiLize WOLFSSL_CTX structure */
    if ((ctx = wolfSSL_CTX_new(wolfTLSv1_2_client_method())) == NULL) {
        printf("SSL_CTX_new error.\n");
        return EXIT_FAILURE;
    }

    /* set callback for action when CA's are added */
    wolfSSL_CTX_SetCACb(ctx, CaCb);

    /* load CA certificates into wolfSSL_CTX. which will verify the server */
    if (wolfSSL_CTX_load_verify_locations(ctx, cert, 0) != SSL_SUCCESS) {
        printf("Error loading %s. Please check the file.\n", cert);
        return EXIT_FAILURE;
    }
    if ((ssl = wolfSSL_new(ctx)) == NULL) {
        printf("wolfSSL_new error.\n");
        return EXIT_FAILURE;
    }
    wolfSSL_set_fd(ssl, sock);

    ret = wolfSSL_connect(ssl);
    if (ret == SSL_SUCCESS) {
        ret = ClientGreet(sock, ssl);
    }

    /* frees all data before client termination */
    wolfSSL_free(ssl);
    wolfSSL_CTX_free(ctx);
    wolfSSL_Cleanup();

    return ret;
}
Ejemplo n.º 10
0
static THREAD_RETURN WOLFSSL_THREAD run_wolfssl_server(void* args)
{
    callback_functions* callbacks = ((func_args*)args)->callbacks;

    WOLFSSL_CTX* ctx = wolfSSL_CTX_new(callbacks->method());
    WOLFSSL*     ssl = NULL;
    SOCKET_T    sfd = 0;
    SOCKET_T    cfd = 0;
    word16      port = wolfSSLPort;

    char msg[] = "I hear you fa shizzle!";
    int  len   = (int) XSTRLEN(msg);
    char input[1024];
    int  idx;

#ifdef WOLFSSL_TIRTOS
    fdOpenSession(Task_self());
#endif
    ((func_args*)args)->return_code = TEST_FAIL;

#if defined(NO_MAIN_DRIVER) && !defined(USE_WINDOWS_API) && \
   !defined(WOLFSSL_SNIFFER) && !defined(WOLFSSL_MDK_SHELL) && \
   !defined(WOLFSSL_TIRTOS)
    port = 0;
#endif

    wolfSSL_CTX_set_verify(ctx,
                          SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, 0);

#ifdef OPENSSL_EXTRA
    wolfSSL_CTX_set_default_passwd_cb(ctx, PasswordCallBack);
#endif


    AssertIntEQ(SSL_SUCCESS, wolfSSL_CTX_load_verify_locations(ctx, cliCert, 0));

    AssertIntEQ(SSL_SUCCESS,
               wolfSSL_CTX_use_certificate_file(ctx, svrCert, SSL_FILETYPE_PEM));

    AssertIntEQ(SSL_SUCCESS,
                 wolfSSL_CTX_use_PrivateKey_file(ctx, svrKey, SSL_FILETYPE_PEM));

    if (callbacks->ctx_ready)
        callbacks->ctx_ready(ctx);

    ssl = wolfSSL_new(ctx);

    tcp_accept(&sfd, &cfd, (func_args*)args, port, 0, 0, 0);
    CloseSocket(sfd);

    wolfSSL_set_fd(ssl, cfd);

#ifdef NO_PSK
    #if !defined(NO_FILESYSTEM) && !defined(NO_DH)
        wolfSSL_SetTmpDH_file(ssl, dhParam, SSL_FILETYPE_PEM);
    #elif !defined(NO_DH)
        SetDH(ssl);  /* will repick suites with DHE, higher priority than PSK */
    #endif
#endif

    if (callbacks->ssl_ready)
        callbacks->ssl_ready(ssl);

    /* AssertIntEQ(SSL_SUCCESS, wolfSSL_accept(ssl)); */
    if (wolfSSL_accept(ssl) != SSL_SUCCESS) {
        int err = wolfSSL_get_error(ssl, 0);
        char buffer[WOLFSSL_MAX_ERROR_SZ];
        printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));

    } else {
        if (0 < (idx = wolfSSL_read(ssl, input, sizeof(input)-1))) {
            input[idx] = 0;
            printf("Client message: %s\n", input);
        }

        AssertIntEQ(len, wolfSSL_write(ssl, msg, len));
#ifdef WOLFSSL_TIRTOS
        Task_yield();
#endif
        wolfSSL_shutdown(ssl);
    }

    if (callbacks->on_result)
        callbacks->on_result(ssl);

    wolfSSL_free(ssl);
    wolfSSL_CTX_free(ctx);
    CloseSocket(cfd);

    ((func_args*)args)->return_code = TEST_SUCCESS;

#ifdef WOLFSSL_TIRTOS
    fdCloseSession(Task_self());
#endif

#if defined(NO_MAIN_DRIVER) && defined(HAVE_ECC) && defined(FP_ECC) \
                            && defined(HAVE_THREAD_LS)
    wc_ecc_fp_free();  /* free per thread cache */
#endif

#ifndef WOLFSSL_TIRTOS
    return 0;
#endif
}
Ejemplo n.º 11
0
int main (int argc, char** argv)
{
    /* standard variables used in a dtls client */
    int           ret = 0, err;
    int           sockfd = -1;
    WOLFSSL*      ssl = NULL;
    WOLFSSL_CTX*  ctx = NULL;
    const char*   ca_cert  = "../certs/ca-cert.pem";
    char          buff[MSGLEN];
    int           buffLen;
    SharedDtls    shared;

    /* Program argument checking */
    if (argc != 2) {
        printf("usage: udpcli <IP address>\n");
        return 1;
    }

    /* Code for handling signals */
    struct sigaction act, oact;
    act.sa_handler = sig_handler;
    sigemptyset(&act.sa_mask);
    act.sa_flags = 0;
    sigaction(SIGINT, &act, &oact);

    wolfSSL_Debugging_ON();

    /* Initialize wolfSSL before assigning ctx */
    wolfSSL_Init();


    if ( (ctx = wolfSSL_CTX_new(wolfDTLSv1_2_client_method())) == NULL) {
        fprintf(stderr, "wolfSSL_CTX_new error.\n");
        goto exit;
    }

    /* Register callbacks */
    wolfSSL_CTX_SetIORecv(ctx, my_IORecv);
    wolfSSL_CTX_SetIOSend(ctx, my_IOSend);


    /* Load CA certificates into ctx variable */
    if (wolfSSL_CTX_load_verify_locations(ctx, ca_cert, 0)
	    != SSL_SUCCESS) {
        fprintf(stderr, "Error loading %s, please check the file.\n", ca_cert);
        goto exit;
    }

    /* Assign ssl variable */
    ssl = wolfSSL_new(ctx);
    if (ssl == NULL) {
        printf("unable to get ssl object");
        goto exit;
    }
    memset(&shared, 0, sizeof(shared));
    shared.ssl = ssl;


    /* servAddr setup */
    shared.servSz = sizeof(shared.servAddr);
    shared.servAddr.sin_family = AF_INET;
    shared.servAddr.sin_port = htons(SERV_PORT);
    if (inet_pton(AF_INET, argv[1], &shared.servAddr.sin_addr) < 1) {
        printf("Error and/or invalid IP address");
        goto exit;
    }

    if ( (sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
       printf("cannot create a socket.");
       goto exit;
    }
    shared.sd = sockfd;

    wolfSSL_SetIOWriteCtx(ssl, &shared);
    wolfSSL_SetIOReadCtx(ssl, &shared);

    if (wolfSSL_connect(ssl) != SSL_SUCCESS) {
	    err = wolfSSL_get_error(ssl, 0);
	    printf("err = %d, %s\n", err, wolfSSL_ERR_reason_error_string(err));
	    printf("SSL_connect failed\n");
        goto exit;
    }

    /**************************************************************************/
    /*                  Code for sending datagram to server                   */
    if (fgets(buff, sizeof(buff), stdin) != NULL) {

        /* Send buffer to the server */
        buffLen = strlen(buff);
        if (( wolfSSL_write(ssl, buff, buffLen)) != buffLen) {
            err = wolfSSL_get_error(ssl, 0);
            if (err != SSL_ERROR_WANT_WRITE) {
                printf("err = %d, %s\n", err, wolfSSL_ERR_reason_error_string(err));
                printf("SSL_write failed\n");
                goto exit;
            }
        }

        /* Receive message from server */
        ret = wolfSSL_read(ssl, buff, sizeof(buff)-1);
        if (ret < 0) {
            err = wolfSSL_get_error(ssl, 0);
            if (err != SSL_ERROR_WANT_READ) {
                printf("err = %d, %s\n", err, wolfSSL_ERR_reason_error_string(err));
                printf("SSL_read failed\n");
                goto exit;
            }
        }
        buffLen = ret;
        ret = 0;

        /* Add a terminating character to the generic server message */
        buff[buffLen] = '\0';
        fputs(buff, stdout);
    }
    /*                End code for sending datagram to server                 */
    /**************************************************************************/

exit:
    /* Housekeeping */
    if (ssl) {
        wolfSSL_shutdown(ssl);
        wolfSSL_free(ssl);
    }
    if (sockfd != -1) {
        close(sockfd);
    }
    if (ctx) {
        wolfSSL_CTX_free(ctx);
    }
    wolfSSL_Cleanup();

    return ret;
}
/* Initialize the wolfSSL library and create a wolfSSL context.
 *
 * version      The protocol version.
 * cert         The server's certificate.
 * key          The server's private key matching the certificate.
 * verifyCert   The certificate for client authentication.
 * cipherList   The list of negotiable ciphers.
 * wolfsslCtx  The new wolfSSL context object.
 * returns EXIT_SUCCESS when a wolfSSL context object is created and
 * EXIT_FAILURE otherwise.
 */
static int WolfSSLCtx_Init(ThreadData* threadData, int version, int allowDowngrade,
    char* cert, char* key, char* verifyCert, char* cipherList)
{
    wolfSSL_method_func method = NULL;

    method = SSL_GetMethod(version, allowDowngrade);
    if (method == NULL)
        return(EXIT_FAILURE);

    /* Create and initialize WOLFSSL_CTX structure */
    if ((threadData->ctx = wolfSSL_CTX_new(method(NULL))) == NULL) {
        fprintf(stderr, "wolfSSL_CTX_new error.\n");
        return(EXIT_FAILURE);
    }

#ifdef WOLFSSL_ASYNC_CRYPT
#ifndef WC_NO_ASYNC_THREADING
    if (wolfAsync_DevOpenThread(&threadData->devId, &threadData->thread_id) < 0)
#else
    if (wolfAsync_DevOpen(&threadData->devId) < 0)
#endif
    {
        fprintf(stderr, "Async device open failed\nRunning without async\n");
    }

    wolfSSL_CTX_UseAsync(threadData->ctx, threadData->devId);
#endif

    /* Load server certificate into WOLFSSL_CTX */
    if (wolfSSL_CTX_use_certificate_file(threadData->ctx, cert, SSL_FILETYPE_PEM)
            != SSL_SUCCESS) {
        fprintf(stderr, "Error loading %s, please check the file.\n", cert);
        WolfSSLCtx_Final(threadData);
        return(EXIT_FAILURE);
    }

    /* Load server key into WOLFSSL_CTX */
    if (wolfSSL_CTX_use_PrivateKey_file(threadData->ctx, key, SSL_FILETYPE_PEM)
            != SSL_SUCCESS) {
        fprintf(stderr, "Error loading %s, please check the file.\n", key);
        WolfSSLCtx_Final(threadData);
        return(EXIT_FAILURE);
    }

    /* Setup client authentication. */
    wolfSSL_CTX_set_verify(threadData->ctx, SSL_VERIFY_PEER, 0);
    if (wolfSSL_CTX_load_verify_locations(threadData->ctx, verifyCert, 0) != SSL_SUCCESS) {
        fprintf(stderr, "Error loading %s, please check the file.\n",
                verifyCert);
        WolfSSLCtx_Final(threadData);
        return(EXIT_FAILURE);
    }

    if (cipherList != NULL) {
        if (wolfSSL_CTX_set_cipher_list(threadData->ctx, cipherList) != SSL_SUCCESS) {
            fprintf(stderr, "Server can't set cipher list.\n");
            WolfSSLCtx_Final(threadData);
            return(EXIT_FAILURE);
        }
    }

#ifndef NO_DH
    SetDHCtx(threadData->ctx);
#endif

    return EXIT_SUCCESS;
}
Ejemplo n.º 13
0
THREAD_RETURN WOLFSSL_THREAD client_test(void* args)
{
    SOCKET_T sockfd = 0;

    WOLFSSL_METHOD*  method  = 0;
    WOLFSSL_CTX*     ctx     = 0;
    WOLFSSL*         ssl     = 0;
    
    WOLFSSL*         sslResume = 0;
    WOLFSSL_SESSION* session = 0;
    char         resumeMsg[] = "resuming wolfssl!";
    int          resumeSz    = sizeof(resumeMsg);

    char msg[32] = "hello wolfssl!";   /* GET may make bigger */
    char reply[80];
    int  input;
    int  msgSz = (int)strlen(msg);

    word16 port   = yasslPort;
    char* host   = (char*)yasslIP;
    const char* domain = "www.yassl.com";

    int    ch;
    int    version = CLIENT_INVALID_VERSION;
    int    usePsk   = 0;
    int    useAnon  = 0;
    int    sendGET  = 0;
    int    benchmark = 0;
    int    doDTLS    = 0;
    int    matchName = 0;
    int    doPeerCheck = 1;
    int    nonBlocking = 0;
    int    resumeSession = 0;
    int    scr           = 0;    /* allow secure renegotiation */
    int    forceScr      = 0;    /* force client initiaed scr */
    int    trackMemory   = 0;
    int    useClientCert = 1;
    int    fewerPackets  = 0;
    int    atomicUser    = 0;
    int    pkCallbacks   = 0;
    int    overrideDateErrors = 0;
    char*  cipherList = NULL;
    const char* verifyCert = caCert;
    const char* ourCert    = cliCert;
    const char* ourKey     = cliKey;

#ifdef HAVE_SNI
    char*  sniHostName = NULL;
#endif
#ifdef HAVE_MAX_FRAGMENT
    byte maxFragment = 0;
#endif
#ifdef HAVE_TRUNCATED_HMAC
    byte  truncatedHMAC = 0;
#endif


#ifdef HAVE_OCSP
    int    useOcsp  = 0;
    char*  ocspUrl  = NULL;
#endif

    int     argc = ((func_args*)args)->argc;
    char**  argv = ((func_args*)args)->argv;

    ((func_args*)args)->return_code = -1; /* error state */

#ifdef NO_RSA
    verifyCert = (char*)eccCert;
    ourCert    = (char*)cliEccCert;
    ourKey     = (char*)cliEccKey;
#endif
    (void)resumeSz;
    (void)session;
    (void)sslResume;
    (void)trackMemory;
    (void)atomicUser;
    (void)pkCallbacks;
    (void)scr;
    (void)forceScr;

    StackTrap();

    while ((ch = mygetopt(argc, argv,
                          "?gdDusmNrRitfxUPh:p:v:l:A:c:k:b:zS:L:ToO:a")) != -1) {
        switch (ch) {
            case '?' :
                Usage();
                exit(EXIT_SUCCESS);

            case 'g' :
                sendGET = 1;
                break;

            case 'd' :
                doPeerCheck = 0;
                break;

            case 'D' :
                overrideDateErrors = 1;
                break;

            case 'u' :
                doDTLS  = 1;
                break;

            case 's' :
                usePsk = 1;
                break;

            case 't' :
            #ifdef USE_WOLFSSL_MEMORY
                trackMemory = 1;
            #endif
                break;

            case 'm' :
                matchName = 1;
                break;

            case 'x' :
                useClientCert = 0;
                break;

            case 'f' :
                fewerPackets = 1;
                break;

            case 'U' :
            #ifdef ATOMIC_USER
                atomicUser = 1;
            #endif
                break;

            case 'P' :
            #ifdef HAVE_PK_CALLBACKS 
                pkCallbacks = 1;
            #endif
                break;

            case 'h' :
                host   = myoptarg;
                domain = myoptarg;
                break;

            case 'p' :
                port = (word16)atoi(myoptarg);
                #if !defined(NO_MAIN_DRIVER) || defined(USE_WINDOWS_API)
                    if (port == 0)
                        err_sys("port number cannot be 0");
                #endif
                break;

            case 'v' :
                version = atoi(myoptarg);
                if (version < 0 || version > 3) {
                    Usage();
                    exit(MY_EX_USAGE);
                }
                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;

            case 'N' :
                nonBlocking = 1;
                break;

            case 'r' :
                resumeSession = 1;
                break;

            case 'R' :
                #ifdef HAVE_SECURE_RENEGOTIATION
                    scr = 1;
                #endif
                break;

            case 'i' :
                #ifdef HAVE_SECURE_RENEGOTIATION
                    scr      = 1;
                    forceScr = 1;
                #endif
                break;

            case 'z' :
                #ifndef WOLFSSL_LEANPSK
                    wolfSSL_GetObjectSize();
                #endif
                break;

            case 'S' :
                #ifdef HAVE_SNI
                    sniHostName = myoptarg;
                #endif
                break;

            case 'L' :
                #ifdef HAVE_MAX_FRAGMENT
                    maxFragment = atoi(myoptarg);
                    if (maxFragment < WOLFSSL_MFL_2_9 ||
                                                maxFragment > WOLFSSL_MFL_2_13) {
                        Usage();
                        exit(MY_EX_USAGE);
                    }
                #endif
                break;

            case 'T' :
                #ifdef HAVE_TRUNCATED_HMAC
                    truncatedHMAC = 1;
                #endif
                break;

            case 'o' :
                #ifdef HAVE_OCSP
                    useOcsp = 1;
                #endif
                break;

            case 'O' :
                #ifdef HAVE_OCSP
                    useOcsp = 1;
                    ocspUrl = myoptarg;
                #endif
                break;

            case 'a' :
                #ifdef HAVE_ANON
                    useAnon = 1;
                #endif
                break;

            default:
                Usage();
                exit(MY_EX_USAGE);
        }
    }

    myoptind = 0;      /* reset for test cases */

    /* sort out DTLS versus TLS versions */
    if (version == CLIENT_INVALID_VERSION) {
        if (doDTLS)
            version = CLIENT_DTLS_DEFAULT_VERSION;
        else
            version = CLIENT_DEFAULT_VERSION;
    }
    else {
        if (doDTLS) {
            if (version == 3)
                version = -2;
            else
                version = -1;
        }
    }

#ifdef USE_WOLFSSL_MEMORY
    if (trackMemory)
        InitMemoryTracker(); 
#endif

    switch (version) {
#ifndef NO_OLD_TLS
        case 0:
            method = wolfSSLv3_client_method();
            break;
                
                
    #ifndef NO_TLS
        case 1:
            method = wolfTLSv1_client_method();
            break;

        case 2:
            method = wolfTLSv1_1_client_method();
            break;
    #endif /* NO_TLS */
                
#endif  /* NO_OLD_TLS */
                
#ifndef NO_TLS
        case 3:
            method = wolfTLSv1_2_client_method();
            break;
#endif

#ifdef WOLFSSL_DTLS
        case -1:
            method = wolfDTLSv1_client_method();
            break;

        case -2:
            method = wolfDTLSv1_2_client_method();
            break;
#endif

        default:
            err_sys("Bad SSL version");
            break;
    }

    if (method == NULL)
        err_sys("unable to get method");

    ctx = wolfSSL_CTX_new(method);
    if (ctx == NULL)
        err_sys("unable to get ctx");

    if (cipherList)
        if (wolfSSL_CTX_set_cipher_list(ctx, cipherList) != SSL_SUCCESS)
            err_sys("client can't set cipher list 1");

#ifdef WOLFSSL_LEANPSK
    usePsk = 1;
#endif

#if defined(NO_RSA) && !defined(HAVE_ECC)
    usePsk = 1;
#endif

    if (fewerPackets)
        wolfSSL_CTX_set_group_messages(ctx);

    if (usePsk) {
#ifndef NO_PSK
        wolfSSL_CTX_set_psk_client_callback(ctx, my_psk_client_cb);
        if (cipherList == NULL) {
            const char *defaultCipherList;
            #ifdef HAVE_NULL_CIPHER
                defaultCipherList = "PSK-NULL-SHA256";
            #else
                defaultCipherList = "PSK-AES128-CBC-SHA256";
            #endif
            if (wolfSSL_CTX_set_cipher_list(ctx,defaultCipherList) !=SSL_SUCCESS)
                err_sys("client can't set cipher list 2");
        }
#endif
        useClientCert = 0;
    }

    if (useAnon) {
#ifdef HAVE_ANON
        if (cipherList == NULL) {
            wolfSSL_CTX_allow_anon_cipher(ctx);
            if (wolfSSL_CTX_set_cipher_list(ctx,"ADH-AES128-SHA") != SSL_SUCCESS)
                err_sys("client can't set cipher list 4");
        }
#endif
        useClientCert = 0;
    }

#if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER)
    wolfSSL_CTX_set_default_passwd_cb(ctx, PasswordCallBack);
#endif

#if defined(WOLFSSL_SNIFFER) && !defined(HAVE_NTRU) && !defined(HAVE_ECC)
    if (cipherList == NULL) {
        /* don't use EDH, can't sniff tmp keys */
        if (wolfSSL_CTX_set_cipher_list(ctx, "AES256-SHA256") != SSL_SUCCESS) {
            err_sys("client can't set cipher list 3");
        }
    }
#endif

#ifdef HAVE_OCSP
    if (useOcsp) {
        if (ocspUrl != NULL) {
            wolfSSL_CTX_SetOCSP_OverrideURL(ctx, ocspUrl);
            wolfSSL_CTX_EnableOCSP(ctx, WOLFSSL_OCSP_NO_NONCE
                                                    | WOLFSSL_OCSP_URL_OVERRIDE);
        }
        else
            wolfSSL_CTX_EnableOCSP(ctx, WOLFSSL_OCSP_NO_NONCE);
    }
#endif

#ifdef USER_CA_CB
    wolfSSL_CTX_SetCACb(ctx, CaCb);
#endif

#ifdef VERIFY_CALLBACK
    wolfSSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, myVerify);
#endif
#if !defined(NO_FILESYSTEM) && !defined(NO_CERTS)
    if (useClientCert){
        if (wolfSSL_CTX_use_certificate_chain_file(ctx, ourCert) != SSL_SUCCESS)
            err_sys("can't load client cert file, check file and run from"
                    " wolfSSL home dir");

        if (wolfSSL_CTX_use_PrivateKey_file(ctx, ourKey, SSL_FILETYPE_PEM)
                                         != SSL_SUCCESS)
            err_sys("can't load client private key file, check file and run "
                    "from wolfSSL home dir");
    }

    if (!usePsk && !useAnon) {
        if (wolfSSL_CTX_load_verify_locations(ctx, verifyCert, 0) != SSL_SUCCESS)
                err_sys("can't load ca file, Please run from wolfSSL home dir");
    }
#endif
#if !defined(NO_CERTS)
    if (!usePsk && !useAnon && doPeerCheck == 0)
        wolfSSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, 0);
    if (!usePsk && !useAnon && overrideDateErrors == 1)
        wolfSSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, myDateCb);
#endif

#ifdef HAVE_CAVIUM
    wolfSSL_CTX_UseCavium(ctx, CAVIUM_DEV_ID);
#endif

#ifdef HAVE_SNI
    if (sniHostName)
        if (wolfSSL_CTX_UseSNI(ctx, 0, sniHostName, XSTRLEN(sniHostName))
                                                                 != SSL_SUCCESS)
            err_sys("UseSNI failed");
#endif
#ifdef HAVE_MAX_FRAGMENT
    if (maxFragment)
        if (wolfSSL_CTX_UseMaxFragment(ctx, maxFragment) != SSL_SUCCESS)
            err_sys("UseMaxFragment failed");
#endif
#ifdef HAVE_TRUNCATED_HMAC
    if (truncatedHMAC)
        if (wolfSSL_CTX_UseTruncatedHMAC(ctx) != SSL_SUCCESS)
            err_sys("UseTruncatedHMAC failed");
#endif
#ifdef HAVE_SESSION_TICKET
    if (wolfSSL_CTX_UseSessionTicket(ctx) != SSL_SUCCESS)
        err_sys("UseSessionTicket failed");
#endif

    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 = wolfSSL_new(ctx);
            wolfSSL_set_fd(ssl, sockfd);
            if (wolfSSL_connect(ssl) != SSL_SUCCESS)
                err_sys("SSL_connect failed");

            wolfSSL_shutdown(ssl);
            wolfSSL_free(ssl);
            CloseSocket(sockfd);
        }
        avg = current_time() - start;
        avg /= times;
        avg *= 1000;   /* milliseconds */
        printf("wolfSSL_connect avg took: %8.3f milliseconds\n", avg);

        wolfSSL_CTX_free(ctx);
        ((func_args*)args)->return_code = 0;

        exit(EXIT_SUCCESS);
    }
    
    #if defined(WOLFSSL_MDK_ARM)
    wolfSSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, 0);
    #endif
    
    ssl = wolfSSL_new(ctx);
    if (ssl == NULL)
        err_sys("unable to get SSL object");
    #ifdef HAVE_SESSION_TICKET
    wolfSSL_set_SessionTicket_cb(ssl, sessionTicketCB, (void*)"initial session");
    #endif
    if (doDTLS) {
        SOCKADDR_IN_T addr;
        build_addr(&addr, host, port, 1);
        wolfSSL_dtls_set_peer(ssl, &addr, sizeof(addr));
        tcp_socket(&sockfd, 1);
    }
    else {
        tcp_connect(&sockfd, host, port, 0);
    }

#ifdef HAVE_POLY1305
    /* use old poly to connect with google server */
    if (!XSTRNCMP(domain, "www.google.com", 14)) {
        if (wolfSSL_use_old_poly(ssl, 1) != 0)
            err_sys("unable to set to old poly");
    }
#endif

    wolfSSL_set_fd(ssl, sockfd);
#ifdef HAVE_CRL
    if (wolfSSL_EnableCRL(ssl, WOLFSSL_CRL_CHECKALL) != SSL_SUCCESS)
        err_sys("can't enable crl check");
    if (wolfSSL_LoadCRL(ssl, crlPemDir, SSL_FILETYPE_PEM, 0) != SSL_SUCCESS)
        err_sys("can't load crl, check crlfile and date validity");
    if (wolfSSL_SetCRL_Cb(ssl, CRL_CallBack) != SSL_SUCCESS)
        err_sys("can't set crl callback");
#endif
#ifdef HAVE_SECURE_RENEGOTIATION
    if (scr) {
        if (wolfSSL_UseSecureRenegotiation(ssl) != SSL_SUCCESS)
            err_sys("can't enable secure renegotiation");
    }
#endif
#ifdef ATOMIC_USER
    if (atomicUser)
        SetupAtomicUser(ctx, ssl);
#endif
#ifdef HAVE_PK_CALLBACKS
    if (pkCallbacks)
        SetupPkCallbacks(ctx, ssl);
#endif
    if (matchName && doPeerCheck)
        wolfSSL_check_domain_name(ssl, domain);
#ifndef WOLFSSL_CALLBACKS
    if (nonBlocking) {
        wolfSSL_set_using_nonblock(ssl, 1);
        tcp_set_nonblocking(&sockfd);
        NonBlockingSSL_Connect(ssl);
    }
    else if (wolfSSL_connect(ssl) != SSL_SUCCESS) {
        /* see note at top of README */
        int  err = wolfSSL_get_error(ssl, 0);
        char buffer[WOLFSSL_MAX_ERROR_SZ];
        printf("err = %d, %s\n", err,
                                wolfSSL_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
    showPeer(ssl);

#ifdef HAVE_SECURE_RENEGOTIATION
    if (scr && forceScr) {
        if (nonBlocking) {
            printf("not doing secure renegotiation on example with"
                   " nonblocking yet");
        } else {
            #ifndef NO_SESSION_CACHE
                if (resumeSession) {
                    session = wolfSSL_get_session(ssl);
                    wolfSSL_set_session(ssl, session);
                    resumeSession = 0;  /* only resume once */
                }
            #endif
            if (wolfSSL_Rehandshake(ssl) != SSL_SUCCESS) {
                int  err = wolfSSL_get_error(ssl, 0);
                char buffer[WOLFSSL_MAX_ERROR_SZ];
                printf("err = %d, %s\n", err,
                                wolfSSL_ERR_error_string(err, buffer));
                err_sys("wolfSSL_Rehandshake failed");
            }
        }
    }
#endif /* HAVE_SECURE_RENEGOTIATION */

    if (sendGET) {
        printf("SSL connect ok, sending GET...\n");
        msgSz = 28;
        strncpy(msg, "GET /index.html HTTP/1.0\r\n\r\n", msgSz);
        msg[msgSz] = '\0';
    }
    if (wolfSSL_write(ssl, msg, msgSz) != msgSz)
        err_sys("SSL_write failed");

    input = wolfSSL_read(ssl, reply, sizeof(reply)-1);
    if (input > 0) {
        reply[input] = 0;
        printf("Server response: %s\n", reply);

        if (sendGET) {  /* get html */
            while (1) {
                input = wolfSSL_read(ssl, reply, sizeof(reply)-1);
                if (input > 0) {
                    reply[input] = 0;
                    printf("%s\n", reply);
                }
                else
                    break;
            }
        }
    }
    else if (input < 0) {
        int readErr = wolfSSL_get_error(ssl, 0);
        if (readErr != SSL_ERROR_WANT_READ)
            err_sys("wolfSSL_read failed");
    }

#ifndef NO_SESSION_CACHE
    if (resumeSession) {
        if (doDTLS) {
            strncpy(msg, "break", 6);
            msgSz = (int)strlen(msg);
            /* try to send session close */
            wolfSSL_write(ssl, msg, msgSz);
        }
        session   = wolfSSL_get_session(ssl);
        sslResume = wolfSSL_new(ctx);
    }
#endif

    if (doDTLS == 0)            /* don't send alert after "break" command */
        wolfSSL_shutdown(ssl);  /* echoserver will interpret as new conn */
#ifdef ATOMIC_USER
    if (atomicUser)
        FreeAtomicUser(ssl);
#endif
    wolfSSL_free(ssl);
    CloseSocket(sockfd);

#ifndef NO_SESSION_CACHE
    if (resumeSession) {
        if (doDTLS) {
            SOCKADDR_IN_T addr;
            #ifdef USE_WINDOWS_API 
                Sleep(500);
            #elif defined(WOLFSSL_TIRTOS)
                Task_sleep(1);
            #else
                sleep(1);
            #endif
            build_addr(&addr, host, port, 1);
            wolfSSL_dtls_set_peer(sslResume, &addr, sizeof(addr));
            tcp_socket(&sockfd, 1);
        }
        else {
            tcp_connect(&sockfd, host, port, 0);
        }
        wolfSSL_set_fd(sslResume, sockfd);
        wolfSSL_set_session(sslResume, session);
#ifdef HAVE_SESSION_TICKET
        wolfSSL_set_SessionTicket_cb(sslResume, sessionTicketCB,
                                    (void*)"resumed session");
#endif
       
        showPeer(sslResume);
#ifndef WOLFSSL_CALLBACKS
        if (nonBlocking) {
            wolfSSL_set_using_nonblock(sslResume, 1);
            tcp_set_nonblocking(&sockfd);
            NonBlockingSSL_Connect(sslResume);
        }
        else if (wolfSSL_connect(sslResume) != SSL_SUCCESS)
            err_sys("SSL resume failed");
#else
        timeout.tv_sec  = 2;
        timeout.tv_usec = 0;
        NonBlockingSSL_Connect(ssl);  /* will keep retrying on timeout */
#endif

        if (wolfSSL_session_reused(sslResume))
            printf("reused session id\n");
        else
            printf("didn't reuse session id!!!\n");

        if (wolfSSL_write(sslResume, resumeMsg, resumeSz) != resumeSz)
            err_sys("SSL_write failed");

        if (nonBlocking) {
            /* give server a chance to bounce a message back to client */
            #ifdef USE_WINDOWS_API
                Sleep(500);
            #elif defined(WOLFSSL_TIRTOS)
                Task_sleep(1);
            #else
                sleep(1);
            #endif
        }

        input = wolfSSL_read(sslResume, reply, sizeof(reply)-1);
        if (input > 0) {
            reply[input] = 0;
            printf("Server resume response: %s\n", reply);
        }

        /* try to send session break */
        wolfSSL_write(sslResume, msg, msgSz); 

        wolfSSL_shutdown(sslResume);
        wolfSSL_free(sslResume);
        CloseSocket(sockfd);
    }
#endif /* NO_SESSION_CACHE */

    wolfSSL_CTX_free(ctx);

    ((func_args*)args)->return_code = 0;

#ifdef USE_WOLFSSL_MEMORY
    if (trackMemory)
        ShowMemoryTracker();
#endif /* USE_WOLFSSL_MEMORY */

#if !defined(WOLFSSL_TIRTOS)
    return 0;
#endif
}
int main (int argc, char** argv)
{
    /* standard variables used in a dtls client*/
    int                 sockfd = 0;
    int                 err1;
    int                 readErr;
    struct sockaddr_in  servAddr;
    const char*         host = argv[1];
    WOLFSSL*            ssl = 0;
    WOLFSSL_CTX*        ctx = 0;
    WOLFSSL*            sslResume = 0;
    WOLFSSL_SESSION*    session = 0;
    char*               srTest = "testing session resume";
    char                cert_array[] = "../certs/ca-cert.pem";
    char                buffer[80];
    char*               certs = cert_array;
    /* variables used in a dtls client for session reuse*/
    int     recvlen;
    char    sendLine[MAXLINE];
    char    recvLine[MAXLINE - 1];

    if (argc != 2) {
        printf("usage: udpcli <IP address>\n");
        return 1;
    }

    wolfSSL_Init();

    /* Un-comment the following line to enable debugging */
    /* wolfSSL_Debugging_ON(); */

    if ( (ctx = wolfSSL_CTX_new(wolfDTLSv1_2_client_method())) == NULL) {
        fprintf(stderr, "wolfSSL_CTX_new error.\n");
        return 1;
    }

    if (wolfSSL_CTX_load_verify_locations(ctx, certs, 0) != SSL_SUCCESS) {
        fprintf(stderr, "Error loading %s, please check the file.\n", certs);
        return 1;
    }

    ssl = wolfSSL_new(ctx);
    if (ssl == NULL) {
    	printf("unable to get ssl object");
        return 1;
    }

    memset(&servAddr, 0, sizeof(servAddr));
    servAddr.sin_family = AF_INET;
    servAddr.sin_port = htons(SERV_PORT);
    if ( (inet_pton(AF_INET, host, &servAddr.sin_addr)) < 1) {
        printf("Error and/or invalid IP address");
        return 1;
    }

    wolfSSL_dtls_set_peer(ssl, &servAddr, sizeof(servAddr));

    if ( (sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
       printf("cannot create a socket.");
       return 1;
    }

    wolfSSL_set_fd(ssl, sockfd);
    if (wolfSSL_connect(ssl) != SSL_SUCCESS) {
        err1 = wolfSSL_get_error(ssl, 0);
        memset(buffer, 0, 80);
        printf("err = %d, %s\n", err1, wolfSSL_ERR_error_string(err1, buffer));
        printf("SSL_connect failed");
        return 1;
    }

/*****************************************************************************/
/*                     Code for sending datagram to server                   */

    /* Loop while the user gives input or until an EOF is read */
    while( fgets(sendLine, MAXLINE, stdin) != NULL ) {

        /* Attempt to send sendLine to the server */
        if ( ( wolfSSL_write(ssl, sendLine, strlen(sendLine))) !=
                strlen(sendLine) ) {
            printf("Error: wolfSSL_write failed.\n");
        }

        /* Attempt to read a message from server and store it in recvLine */
        recvlen = wolfSSL_read(ssl, recvLine, sizeof(recvLine) - 1);

        /* Error checking wolfSSL_read */
        if (recvlen < 0) {
            readErr = wolfSSL_get_error(ssl, 0);
            if (readErr != SSL_ERROR_WANT_READ) {
                printf("Error: wolfSSL_read failed.\n");
            }
        }

        recvLine[recvlen] = '\0';
        fputs(recvLine, stdout);
    }
/*                                                                           */
/*****************************************************************************/

    /* Keep track of the old session information */
    wolfSSL_write(ssl, srTest, sizeof(srTest));
    session = wolfSSL_get_session(ssl);
    sslResume = wolfSSL_new(ctx);

    /* Cleanup the memory used by the old session & ssl object */
    wolfSSL_shutdown(ssl);
    wolfSSL_free(ssl);
    close(sockfd);

    /* Perform setup with new variables/old session information */
    memset(&servAddr, 0, sizeof(servAddr));
    servAddr.sin_family = AF_INET;
    servAddr.sin_port = htons(SERV_PORT);
    if ( (inet_pton(AF_INET, host, &servAddr.sin_addr)) < 1) {
        printf("Error and/or invalid IP address");
        return 1;
    }

    wolfSSL_dtls_set_peer(sslResume, &servAddr, sizeof(servAddr));

    if ( (sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
        printf("cannot create a socket.");
        return 1;
    }

    wolfSSL_set_fd(sslResume, sockfd);

    /* New method call - specifies to the WOLFSSL object to use the  *
     * given WOLFSSL_SESSION object                                  */
    wolfSSL_set_session(sslResume, session);

    wolfSSL_set_fd(sslResume, sockfd);
    if (wolfSSL_connect(sslResume) != SSL_SUCCESS) {
        err1 = wolfSSL_get_error(sslResume, 0);
        memset(buffer, 0, 80);
        printf("err = %d, %s\n", err1, wolfSSL_ERR_error_string(err1, buffer));
        printf("SSL_connect failed on session reuse\n");
        return 1;
    }

    if (wolfSSL_session_reused(sslResume)) {
    	printf("reused session id\n");
    }
    else {
    	printf("didn't reuse session id!!!\n");
    }

/*****************************************************************************/
/*                     Code for sending datagram to server                   */
    /* Clear out variables for reuse */
    recvlen = 0;
    memset(sendLine, 0, MAXLINE);
    memset(recvLine, 0, MAXLINE - 1);

    /* Loop while the user gives input or until an EOF is read */
    while( fgets(sendLine, MAXLINE, stdin) != NULL ) {

        /* Attempt to send sendLine to the server */
        if ( ( wolfSSL_write(ssl, sendLine, strlen(sendLine))) !=
                strlen(sendLine) ) {
            printf("Error: wolfSSL_write failed.\n");
        }

        /* Attempt to read a message from server and store it in recvLine */
        recvlen = wolfSSL_read(ssl, recvLine, sizeof(recvLine) - 1);

        /* Error checking wolfSSL_read */
        if (recvlen < 0) {
            readErr = wolfSSL_get_error(ssl, 0);
            if (readErr != SSL_ERROR_WANT_READ) {
                printf("Error: wolfSSL_read failed.\n");
            }
        }

        recvLine[recvlen] = '\0';
        fputs(recvLine, stdout);
    }
/*                                                                           */
/*****************************************************************************/

    wolfSSL_write(sslResume, srTest, sizeof(srTest));

    /* Cleanup memory used for storing the session information */
    wolfSSL_shutdown(sslResume);
    wolfSSL_free(sslResume);

    close(sockfd);
    wolfSSL_CTX_free(ctx);
    wolfSSL_Cleanup();

    return 0;
}
/* Initialize the wolfSSL library and create a wolfSSL context.
 *
 * version      The protocol version.
 * cert         The server's certificate.
 * key          The server's private key matching the certificate.
 * verifyCert   The certificate for client authentication.
 * cipherList   The list of negotiable ciphers.
 * wolfsslCtx  The new wolfSSL context object.
 * returns EXIT_SUCCESS when a wolfSSL context object is created and
 * EXIT_FAILURE otherwise.
 */
static int WolfSSLCtx_Init(int version, char* cert, char* key, char* verifyCert,
                           char* cipherList, int* devId,
                           WOLFSSL_CTX** wolfsslCtx)
{
    WOLFSSL_CTX* ctx;
    wolfSSL_method_func method = NULL;

    method = SSL_GetMethod(version);
    if (method == NULL)
        return(EXIT_FAILURE);

    /* Create and initialize WOLFSSL_CTX structure */
    if ((ctx = wolfSSL_CTX_new(method(NULL))) == NULL) {
        fprintf(stderr, "wolfSSL_CTX_new error.\n");
        return(EXIT_FAILURE);
    }

#ifdef WOLFSSL_ASYNC_CRYPT
    if (wolfAsync_DevOpen(devId) != 0) {
        fprintf(stderr, "Async device open failed\nRunning without async\n");
    }

    wolfSSL_CTX_UseAsync(ctx, *devId);
#endif

    /* Load server certificate into WOLFSSL_CTX */
    if (wolfSSL_CTX_use_certificate_file(ctx, cert, SSL_FILETYPE_PEM)
            != SSL_SUCCESS) {
        fprintf(stderr, "Error loading %s, please check the file.\n", cert);
        wolfSSL_CTX_free(ctx);
        return(EXIT_FAILURE);
    }

    /* Load server key into WOLFSSL_CTX */
    if (wolfSSL_CTX_use_PrivateKey_file(ctx, key, SSL_FILETYPE_PEM)
            != SSL_SUCCESS) {
        fprintf(stderr, "Error loading %s, please check the file.\n", key);
        wolfSSL_CTX_free(ctx);
        return(EXIT_FAILURE);
    }

    /* Setup client authentication. */
    wolfSSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, 0);
    if (wolfSSL_CTX_load_verify_locations(ctx, verifyCert, 0) != SSL_SUCCESS) {
        fprintf(stderr, "Error loading %s, please check the file.\n",
                verifyCert);
        wolfSSL_CTX_free(ctx);
        return(EXIT_FAILURE);
    }

    if (cipherList != NULL) {
        if (wolfSSL_CTX_set_cipher_list(ctx, cipherList) != SSL_SUCCESS) {
            fprintf(stderr, "Server can't set cipher list.\n");
            wolfSSL_CTX_free(ctx);
            return(EXIT_FAILURE);
        }
    }

#ifndef NO_DH
    SetDHCtx(ctx);
#endif

    *wolfsslCtx = ctx;
    return EXIT_SUCCESS;
}
Ejemplo n.º 16
0
/* See the comments at the top of main.c. */
void vSecureTCPClientTask( void *pvParameters )
{
SOCKET xClientSocket;
struct sockaddr_in xConnection;
WOLFSSL* xWolfSSL_Object;
WORD wVersionRequested;
WSADATA xWSAData;
char cString[ 50 ];
BaseType_t lReturned;
uint32_t ulCount = 0UL;

	/* Remove compiler warning about unused parameters. */
	( void ) pvParameters;

	/* Prepare to use WinSock. */
	wVersionRequested = MAKEWORD( 2, 2 );
	configASSERT( WSAStartup( wVersionRequested, &xWSAData ) == 0 );

	/* Set family and port for client socket. */
	memset( ( void * ) &xConnection, 0x00, sizeof( struct sockaddr_in ) );
	xConnection.sin_family = AF_INET;
	xConnection.sin_addr.s_addr = inet_addr("127.0.0.1");
	xConnection.sin_port = htons( configTCP_PORT_NUMBER );

    /* Attempt to create a context that uses the TLS 1.2 server protocol. */
    xWolfSSL_ClientContext = wolfSSL_CTX_new( wolfTLSv1_2_client_method() );
	configASSERT( xWolfSSL_ClientContext );

    /* Load the CA certificate. */
    lReturned = wolfSSL_CTX_load_verify_locations( xWolfSSL_ClientContext, "ca-cert.pem", 0 );
	configASSERT( lReturned == SSL_SUCCESS );

	for( ;; )
	{
		/* Create the socket. */
		xClientSocket = socket( AF_INET, SOCK_STREAM, 0 );
		configASSERT( xClientSocket != INVALID_SOCKET );

		/* Connect to the secure server. */
		if( connect( xClientSocket, ( SOCKADDR * ) &xConnection, sizeof( xConnection ) ) == 0 )
		{
			/* The connect was successful.  Create a wolfSSL object to associate
			with this connection. */
			xWolfSSL_Object = wolfSSL_new( xWolfSSL_ClientContext );

			if( xWolfSSL_Object != NULL )
			{
				/* Associate the created wolfSSL object with the connected
				socket. */
				lReturned = wolfSSL_set_fd( xWolfSSL_Object, xClientSocket );
				configASSERT( lReturned == SSL_SUCCESS );

				/* The count is used to differentiate between messages sent to
				the server, and to break out of the do while loop below. */
				ulCount = 0UL;

				do
				{
					/* Create the string that is sent to the secure server. */
					sprintf( cString, "Message number %lu\r\n", ulCount );

					/* The next line is the secure equivalent of the standard
					sockets call:
					lReturned = send( xClientSocket, cString, strlen( cString ) + 1, 0 ); */
					lReturned = wolfSSL_write( xWolfSSL_Object, cString, strlen( cString ) + 1 );


					/* Short delay to prevent the messages streaming up the
					console too quickly. */
					vTaskDelay( 50 );
					ulCount++;

				} while( ( lReturned != SOCKET_ERROR ) && ( ulCount < 10UL ) );
			}

			wolfSSL_free( xWolfSSL_Object );
			closesocket( xClientSocket );

			/* Delay for a short time before starting over. */
			vTaskDelay( 250 );
		}
	}
}
Ejemplo n.º 17
0
THREAD_RETURN WOLFSSL_THREAD client_test(void* args)
{
    SOCKET_T sockfd = WOLFSSL_SOCKET_INVALID;

    WOLFSSL_METHOD*  method  = 0;
    WOLFSSL_CTX*     ctx     = 0;
    WOLFSSL*         ssl     = 0;

    WOLFSSL*         sslResume = 0;
    WOLFSSL_SESSION* session = 0;
    char         resumeMsg[32] = "resuming wolfssl!";
    int          resumeSz    = (int)strlen(resumeMsg);

    char msg[32] = "hello wolfssl!";   /* GET may make bigger */
    char reply[80];
    int  input;
    int  msgSz = (int)strlen(msg);

    word16 port   = wolfSSLPort;
    char* host   = (char*)wolfSSLIP;
    const char* domain = "localhost";  /* can't default to www.wolfssl.com
                                          because can't tell if we're really
                                          going there to detect old chacha-poly
                                       */
    int    ch;
    int    version = CLIENT_INVALID_VERSION;
    int    usePsk   = 0;
    int    useAnon  = 0;
    int    sendGET  = 0;
    int    benchmark = 0;
    int    throughput = 0;
    int    doDTLS    = 0;
    int    matchName = 0;
    int    doPeerCheck = 1;
    int    nonBlocking = 0;
    int    resumeSession = 0;
    int    wc_shutdown   = 0;
    int    disableCRL    = 0;
    int    externalTest  = 0;
    int    ret;
    int    scr           = 0;    /* allow secure renegotiation */
    int    forceScr      = 0;    /* force client initiaed scr */
    int    trackMemory   = 0;
    int    useClientCert = 1;
    int    fewerPackets  = 0;
    int    atomicUser    = 0;
    int    pkCallbacks   = 0;
    int    overrideDateErrors = 0;
    int    minDhKeyBits  = DEFAULT_MIN_DHKEY_BITS;
    char*  alpnList = NULL;
    unsigned char alpn_opt = 0;
    char*  cipherList = NULL;
    const char* verifyCert = caCert;
    const char* ourCert    = cliCert;
    const char* ourKey     = cliKey;

#ifdef HAVE_SNI
    char*  sniHostName = NULL;
#endif
#ifdef HAVE_MAX_FRAGMENT
    byte maxFragment = 0;
#endif
#ifdef HAVE_TRUNCATED_HMAC
    byte truncatedHMAC = 0;
#endif
#if defined(HAVE_CERTIFICATE_STATUS_REQUEST) \
 || defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2)
    byte statusRequest = 0;
#endif


#ifdef HAVE_OCSP
    int    useOcsp  = 0;
    char*  ocspUrl  = NULL;
#endif

    int     argc = ((func_args*)args)->argc;
    char**  argv = ((func_args*)args)->argv;

    ((func_args*)args)->return_code = -1; /* error state */

#ifdef NO_RSA
    verifyCert = (char*)eccCert;
    ourCert    = (char*)cliEccCert;
    ourKey     = (char*)cliEccKey;
#endif
    (void)resumeSz;
    (void)session;
    (void)sslResume;
    (void)trackMemory;
    (void)atomicUser;
    (void)pkCallbacks;
    (void)scr;
    (void)forceScr;
    (void)ourKey;
    (void)ourCert;
    (void)verifyCert;
    (void)useClientCert;
    (void)overrideDateErrors;
    (void)disableCRL;
    (void)minDhKeyBits;
    (void)alpnList;
    (void)alpn_opt;

    StackTrap();

#ifndef WOLFSSL_VXWORKS
    while ((ch = mygetopt(argc, argv,
            "?gdeDusmNrwRitfxXUPCVh:p:v:l:A:c:k:Z:b:zS:F:L:ToO:aB:W:")) != -1) {
        switch (ch) {
            case '?' :
                Usage();
                exit(EXIT_SUCCESS);

            case 'g' :
                sendGET = 1;
                break;

            case 'd' :
                doPeerCheck = 0;
                break;

            case 'e' :
                ShowCiphers();
                exit(EXIT_SUCCESS);

            case 'D' :
                overrideDateErrors = 1;
                break;

            case 'C' :
                #ifdef HAVE_CRL
                    disableCRL = 1;
                #endif
                break;

            case 'u' :
                doDTLS  = 1;
                break;

            case 's' :
                usePsk = 1;
                break;

            case 't' :
            #ifdef USE_WOLFSSL_MEMORY
                trackMemory = 1;
            #endif
                break;

            case 'm' :
                matchName = 1;
                break;

            case 'x' :
                useClientCert = 0;
                break;

            case 'X' :
                externalTest = 1;
                break;

            case 'f' :
                fewerPackets = 1;
                break;

            case 'U' :
            #ifdef ATOMIC_USER
                atomicUser = 1;
            #endif
                break;

            case 'P' :
            #ifdef HAVE_PK_CALLBACKS
                pkCallbacks = 1;
            #endif
                break;

            case 'h' :
                host   = myoptarg;
                domain = myoptarg;
                break;

            case 'p' :
                port = (word16)atoi(myoptarg);
                #if !defined(NO_MAIN_DRIVER) || defined(USE_WINDOWS_API)
                    if (port == 0)
                        err_sys("port number cannot be 0");
                #endif
                break;

            case 'v' :
                version = atoi(myoptarg);
                if (version < 0 || version > 3) {
                    Usage();
                    exit(MY_EX_USAGE);
                }
                break;

            case 'V' :
                ShowVersions();
                exit(EXIT_SUCCESS);

            case 'l' :
                cipherList = myoptarg;
                break;

            case 'A' :
                verifyCert = myoptarg;
                break;

            case 'c' :
                ourCert = myoptarg;
                break;

            case 'k' :
                ourKey = myoptarg;
                break;

            case 'Z' :
                #ifndef NO_DH
                    minDhKeyBits = atoi(myoptarg);
                    if (minDhKeyBits <= 0 || minDhKeyBits > 16000) {
                        Usage();
                        exit(MY_EX_USAGE);
                    }
                #endif
                break;

            case 'b' :
                benchmark = atoi(myoptarg);
                if (benchmark < 0 || benchmark > 1000000) {
                    Usage();
                    exit(MY_EX_USAGE);
                }
                break;

            case 'B' :
                throughput = atoi(myoptarg);
                if (throughput <= 0) {
                    Usage();
                    exit(MY_EX_USAGE);
                }
                break;

            case 'N' :
                nonBlocking = 1;
                break;

            case 'r' :
                resumeSession = 1;
                break;

            case 'w' :
                wc_shutdown = 1;
                break;

            case 'R' :
                #ifdef HAVE_SECURE_RENEGOTIATION
                    scr = 1;
                #endif
                break;

            case 'i' :
                #ifdef HAVE_SECURE_RENEGOTIATION
                    scr      = 1;
                    forceScr = 1;
                #endif
                break;

            case 'z' :
                #ifndef WOLFSSL_LEANPSK
                    wolfSSL_GetObjectSize();
                #endif
                break;

            case 'S' :
                #ifdef HAVE_SNI
                    sniHostName = myoptarg;
                #endif
                break;

            case 'F' :
                #ifdef HAVE_MAX_FRAGMENT
                    maxFragment = atoi(myoptarg);
                    if (maxFragment < WOLFSSL_MFL_2_9 ||
                                                maxFragment > WOLFSSL_MFL_2_13) {
                        Usage();
                        exit(MY_EX_USAGE);
                    }
                #endif
                break;

            case 'T' :
                #ifdef HAVE_TRUNCATED_HMAC
                    truncatedHMAC = 1;
                #endif
                break;

            case 'W' :
                #if defined(HAVE_CERTIFICATE_STATUS_REQUEST) \
                 || defined(HAVE_CERTIFICATE_STATUS_REQUEST_V2)
                    statusRequest = atoi(myoptarg);
                #endif
                break;

            case 'o' :
                #ifdef HAVE_OCSP
                    useOcsp = 1;
                #endif
                break;

            case 'O' :
                #ifdef HAVE_OCSP
                    useOcsp = 1;
                    ocspUrl = myoptarg;
                #endif
                break;

            case 'a' :
                #ifdef HAVE_ANON
                    useAnon = 1;
                #endif
                break;

            case 'L' :
                #ifdef HAVE_ALPN
                    alpnList = myoptarg;

                    if (alpnList[0] == 'C' && alpnList[1] == ':')
                        alpn_opt = WOLFSSL_ALPN_CONTINUE_ON_MISMATCH;
                    else if (alpnList[0] == 'F' && alpnList[1] == ':')
                        alpn_opt = WOLFSSL_ALPN_FAILED_ON_MISMATCH;
                    else {
                        Usage();
                        exit(MY_EX_USAGE);
                    }

                    alpnList += 2;

                #endif
                break;

            default:
                Usage();
                exit(MY_EX_USAGE);
        }
    }

    myoptind = 0;      /* reset for test cases */
#endif /* !WOLFSSL_VXWORKS */

    if (externalTest) {
        /* detect build cases that wouldn't allow test against wolfssl.com */
        int done = 0;
        (void)done;

        #ifdef NO_RSA
            done = 1;
        #endif

        /* www.globalsign.com does not respond to ipv6 ocsp requests */
        #if defined(TEST_IPV6) && defined(HAVE_OCSP)
            done = 1;
        #endif

        /* www.globalsign.com has limited supported cipher suites */
        #if defined(NO_AES) && defined(HAVE_OCSP)
            done = 1;
        #endif

        /* www.globalsign.com only supports static RSA or ECDHE with AES */
        /* We cannot expect users to have on static RSA so test for ECC only
         * as some users will most likely be on 32-bit systems where ECC
         * is not enabled by default */
        #if defined(HAVE_OCSP) && !defined(HAVE_ECC)
            done = 1;
        #endif

        #ifndef NO_PSK
            done = 1;
        #endif

        #ifdef NO_SHA
            done = 1;  /* external cert chain most likely has SHA */
        #endif

        #if !defined(HAVE_ECC) && !defined(WOLFSSL_STATIC_RSA)
            if (!XSTRNCMP(domain, "www.google.com", 14) ||
                !XSTRNCMP(domain, "www.wolfssl.com", 15)) {
                done = 1;  /* google/wolfssl need ECDHE or static RSA */
            }
        #endif

        #if !defined(WOLFSSL_SHA384)
            if (!XSTRNCMP(domain, "www.wolfssl.com", 15)) {
                done = 1;  /* wolfssl need sha384 for cert chain verify */
            }
        #endif

        #if !defined(HAVE_AESGCM) && defined(NO_AES) && \
            !(defined(HAVE_CHACHA) && defined(HAVE_POLY1305))
            done = 1;  /* need at least on of these for external tests */
        #endif

        if (done) {
            printf("external test can't be run in this mode");

            ((func_args*)args)->return_code = 0;
            exit(EXIT_SUCCESS);
        }
    }

    /* sort out DTLS versus TLS versions */
    if (version == CLIENT_INVALID_VERSION) {
        if (doDTLS)
            version = CLIENT_DTLS_DEFAULT_VERSION;
        else
            version = CLIENT_DEFAULT_VERSION;
    }
    else {
        if (doDTLS) {
            if (version == 3)
                version = -2;
            else
                version = -1;
        }
    }

#ifdef USE_WOLFSSL_MEMORY
    if (trackMemory)
        InitMemoryTracker();
#endif

    switch (version) {
#ifndef NO_OLD_TLS
    #ifdef WOLFSSL_ALLOW_SSLV3
        case 0:
            method = wolfSSLv3_client_method();
            break;
    #endif

    #ifndef NO_TLS
        case 1:
            method = wolfTLSv1_client_method();
            break;

        case 2:
            method = wolfTLSv1_1_client_method();
            break;
    #endif /* NO_TLS */

#endif  /* NO_OLD_TLS */

#ifndef NO_TLS
        case 3:
            method = wolfTLSv1_2_client_method();
            break;
#endif

#ifdef WOLFSSL_DTLS
        #ifndef NO_OLD_TLS
        case -1:
            method = wolfDTLSv1_client_method();
            break;
        #endif

        case -2:
            method = wolfDTLSv1_2_client_method();
            break;
#endif

        default:
            err_sys("Bad SSL version");
            break;
    }

    if (method == NULL)
        err_sys("unable to get method");

    ctx = wolfSSL_CTX_new(method);
    if (ctx == NULL)
        err_sys("unable to get ctx");

    if (cipherList) {
        if (wolfSSL_CTX_set_cipher_list(ctx, cipherList) != SSL_SUCCESS)
            err_sys("client can't set cipher list 1");
    }

#ifdef WOLFSSL_LEANPSK
    usePsk = 1;
#endif

#if defined(NO_RSA) && !defined(HAVE_ECC)
    usePsk = 1;
#endif

    if (fewerPackets)
        wolfSSL_CTX_set_group_messages(ctx);

#ifndef NO_DH
    wolfSSL_CTX_SetMinDhKey_Sz(ctx, (word16)minDhKeyBits);
#endif

    if (usePsk) {
#ifndef NO_PSK
        wolfSSL_CTX_set_psk_client_callback(ctx, my_psk_client_cb);
        if (cipherList == NULL) {
            const char *defaultCipherList;
            #if defined(HAVE_AESGCM) && !defined(NO_DH)
                defaultCipherList = "DHE-PSK-AES128-GCM-SHA256";
            #elif defined(HAVE_NULL_CIPHER)
                defaultCipherList = "PSK-NULL-SHA256";
            #else
                defaultCipherList = "PSK-AES128-CBC-SHA256";
            #endif
            if (wolfSSL_CTX_set_cipher_list(ctx,defaultCipherList)
                                                                  !=SSL_SUCCESS)
                err_sys("client can't set cipher list 2");
        }
#endif
        useClientCert = 0;
    }

    if (useAnon) {
#ifdef HAVE_ANON
        if (cipherList == NULL) {
            wolfSSL_CTX_allow_anon_cipher(ctx);
            if (wolfSSL_CTX_set_cipher_list(ctx,"ADH-AES128-SHA") != SSL_SUCCESS)
                err_sys("client can't set cipher list 4");
        }
#endif
        useClientCert = 0;
    }

#if defined(OPENSSL_EXTRA) || defined(HAVE_WEBSERVER)
    wolfSSL_CTX_set_default_passwd_cb(ctx, PasswordCallBack);
#endif

#if defined(WOLFSSL_SNIFFER)
    if (cipherList == NULL) {
        /* don't use EDH, can't sniff tmp keys */
        if (wolfSSL_CTX_set_cipher_list(ctx, "AES128-SHA") != SSL_SUCCESS) {
            err_sys("client can't set cipher list 3");
        }
    }
#endif

#ifdef HAVE_OCSP
    if (useOcsp) {
        if (ocspUrl != NULL) {
            wolfSSL_CTX_SetOCSP_OverrideURL(ctx, ocspUrl);
            wolfSSL_CTX_EnableOCSP(ctx, WOLFSSL_OCSP_NO_NONCE
                                                    | WOLFSSL_OCSP_URL_OVERRIDE);
        }
        else
            wolfSSL_CTX_EnableOCSP(ctx, 0);
    }
#endif

#ifdef USER_CA_CB
    wolfSSL_CTX_SetCACb(ctx, CaCb);
#endif

#ifdef VERIFY_CALLBACK
    wolfSSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, myVerify);
#endif
#if !defined(NO_FILESYSTEM) && !defined(NO_CERTS)
    if (useClientCert){
        if (wolfSSL_CTX_use_certificate_chain_file(ctx, ourCert) != SSL_SUCCESS)
            err_sys("can't load client cert file, check file and run from"
                    " wolfSSL home dir");

        if (wolfSSL_CTX_use_PrivateKey_file(ctx, ourKey, SSL_FILETYPE_PEM)
                                         != SSL_SUCCESS)
            err_sys("can't load client private key file, check file and run "
                    "from wolfSSL home dir");
    }

    if (!usePsk && !useAnon) {
        if (wolfSSL_CTX_load_verify_locations(ctx, verifyCert,0) != SSL_SUCCESS)
            err_sys("can't load ca file, Please run from wolfSSL home dir");
#ifdef HAVE_ECC
        /* load ecc verify too, echoserver uses it by default w/ ecc */
        if (wolfSSL_CTX_load_verify_locations(ctx, eccCert, 0) != SSL_SUCCESS)
            err_sys("can't load ecc ca file, Please run from wolfSSL home dir");
#endif /* HAVE_ECC */
    }
#endif /* !NO_FILESYSTEM && !NO_CERTS */
#if !defined(NO_CERTS)
    if (!usePsk && !useAnon && doPeerCheck == 0)
        wolfSSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, 0);
    if (!usePsk && !useAnon && overrideDateErrors == 1)
        wolfSSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, myDateCb);
#endif

#ifdef HAVE_CAVIUM
    wolfSSL_CTX_UseCavium(ctx, CAVIUM_DEV_ID);
#endif

#ifdef HAVE_SNI
    if (sniHostName)
        if (wolfSSL_CTX_UseSNI(ctx, 0, sniHostName, XSTRLEN(sniHostName))
                                                                 != SSL_SUCCESS)
            err_sys("UseSNI failed");
#endif
#ifdef HAVE_MAX_FRAGMENT
    if (maxFragment)
        if (wolfSSL_CTX_UseMaxFragment(ctx, maxFragment) != SSL_SUCCESS)
            err_sys("UseMaxFragment failed");
#endif
#ifdef HAVE_TRUNCATED_HMAC
    if (truncatedHMAC)
        if (wolfSSL_CTX_UseTruncatedHMAC(ctx) != SSL_SUCCESS)
            err_sys("UseTruncatedHMAC failed");
#endif
#ifdef HAVE_SESSION_TICKET
    if (wolfSSL_CTX_UseSessionTicket(ctx) != SSL_SUCCESS)
        err_sys("UseSessionTicket failed");
#endif

    if (benchmark) {
        ((func_args*)args)->return_code =
            ClientBenchmarkConnections(ctx, host, port, doDTLS, benchmark, resumeSession);
        wolfSSL_CTX_free(ctx);
        exit(EXIT_SUCCESS);
    }

    if(throughput) {
        ((func_args*)args)->return_code =
            ClientBenchmarkThroughput(ctx, host, port, doDTLS, throughput);
        wolfSSL_CTX_free(ctx);
        exit(EXIT_SUCCESS);
    }

    #if defined(WOLFSSL_MDK_ARM)
    wolfSSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, 0);
    #endif

    ssl = wolfSSL_new(ctx);
    if (ssl == NULL)
        err_sys("unable to get SSL object");

    #ifdef HAVE_SUPPORTED_CURVES /* add curves to supported curves extension */
        if (wolfSSL_UseSupportedCurve(ssl, WOLFSSL_ECC_SECP256R1)
                != SSL_SUCCESS) {
            err_sys("unable to set curve secp256r1");
        }
        if (wolfSSL_UseSupportedCurve(ssl, WOLFSSL_ECC_SECP384R1)
                != SSL_SUCCESS) {
            err_sys("unable to set curve secp384r1");
        }
        if (wolfSSL_UseSupportedCurve(ssl, WOLFSSL_ECC_SECP521R1)
                != SSL_SUCCESS) {
            err_sys("unable to set curve secp521r1");
        }
        if (wolfSSL_UseSupportedCurve(ssl, WOLFSSL_ECC_SECP224R1)
                != SSL_SUCCESS) {
            err_sys("unable to set curve secp224r1");
        }
        if (wolfSSL_UseSupportedCurve(ssl, WOLFSSL_ECC_SECP192R1)
                != SSL_SUCCESS) {
            err_sys("unable to set curve secp192r1");
        }
        if (wolfSSL_UseSupportedCurve(ssl, WOLFSSL_ECC_SECP160R1)
                != SSL_SUCCESS) {
            err_sys("unable to set curve secp160r1");
        }
    #endif

    #ifdef HAVE_SESSION_TICKET
    wolfSSL_set_SessionTicket_cb(ssl, sessionTicketCB, (void*)"initial session");
    #endif

#ifdef HAVE_ALPN
    if (alpnList != NULL) {
       printf("ALPN accepted protocols list : %s\n", alpnList);
       wolfSSL_UseALPN(ssl, alpnList, (word32)XSTRLEN(alpnList), alpn_opt);
    }
#endif
#ifdef HAVE_CERTIFICATE_STATUS_REQUEST
    if (statusRequest) {
        switch (statusRequest) {
            case WOLFSSL_CSR_OCSP:
                if (wolfSSL_UseOCSPStapling(ssl, WOLFSSL_CSR_OCSP,
                                     WOLFSSL_CSR_OCSP_USE_NONCE) != SSL_SUCCESS)
                    err_sys("UseCertificateStatusRequest failed");

            break;
        }

        wolfSSL_CTX_EnableOCSP(ctx, 0);
    }
#endif
#ifdef HAVE_CERTIFICATE_STATUS_REQUEST_V2
    if (statusRequest) {
        switch (statusRequest) {
            case WOLFSSL_CSR2_OCSP:
                if (wolfSSL_UseOCSPStaplingV2(ssl,
                    WOLFSSL_CSR2_OCSP, WOLFSSL_CSR2_OCSP_USE_NONCE)
                                                                 != SSL_SUCCESS)
                    err_sys("UseCertificateStatusRequest failed");
            break;
            case WOLFSSL_CSR2_OCSP_MULTI:
                if (wolfSSL_UseOCSPStaplingV2(ssl,
                    WOLFSSL_CSR2_OCSP_MULTI, 0)
                                                                 != SSL_SUCCESS)
                    err_sys("UseCertificateStatusRequest failed");
            break;

        }

        wolfSSL_CTX_EnableOCSP(ctx, 0);
    }
#endif

    tcp_connect(&sockfd, host, port, doDTLS, ssl);
    wolfSSL_set_fd(ssl, sockfd);
#ifdef HAVE_CRL
    if (disableCRL == 0) {
        if (wolfSSL_EnableCRL(ssl, WOLFSSL_CRL_CHECKALL) != SSL_SUCCESS)
            err_sys("can't enable crl check");
        if (wolfSSL_LoadCRL(ssl, crlPemDir, SSL_FILETYPE_PEM, 0) != SSL_SUCCESS)
            err_sys("can't load crl, check crlfile and date validity");
        if (wolfSSL_SetCRL_Cb(ssl, CRL_CallBack) != SSL_SUCCESS)
            err_sys("can't set crl callback");
    }
#endif
#ifdef HAVE_SECURE_RENEGOTIATION
    if (scr) {
        if (wolfSSL_UseSecureRenegotiation(ssl) != SSL_SUCCESS)
            err_sys("can't enable secure renegotiation");
    }
#endif
#ifdef ATOMIC_USER
    if (atomicUser)
        SetupAtomicUser(ctx, ssl);
#endif
#ifdef HAVE_PK_CALLBACKS
    if (pkCallbacks)
        SetupPkCallbacks(ctx, ssl);
#endif
    if (matchName && doPeerCheck)
        wolfSSL_check_domain_name(ssl, domain);
#ifndef WOLFSSL_CALLBACKS
    if (nonBlocking) {
        wolfSSL_set_using_nonblock(ssl, 1);
        tcp_set_nonblocking(&sockfd);
        NonBlockingSSL_Connect(ssl);
    }
    else if (wolfSSL_connect(ssl) != SSL_SUCCESS) {
        /* see note at top of README */
        int  err = wolfSSL_get_error(ssl, 0);
        char buffer[WOLFSSL_MAX_ERROR_SZ];
        printf("err = %d, %s\n", err,
                                wolfSSL_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
    showPeer(ssl);

#ifdef HAVE_ALPN
    if (alpnList != NULL) {
        int err;
        char *protocol_name = NULL;
        word16 protocol_nameSz = 0;

        err = wolfSSL_ALPN_GetProtocol(ssl, &protocol_name, &protocol_nameSz);
        if (err == SSL_SUCCESS)
            printf("Received ALPN protocol : %s (%d)\n",
                   protocol_name, protocol_nameSz);
        else if (err == SSL_ALPN_NOT_FOUND)
            printf("No ALPN response received (no match with server)\n");
        else
            printf("Getting ALPN protocol name failed\n");
    }
#endif

#ifdef HAVE_SECURE_RENEGOTIATION
    if (scr && forceScr) {
        if (nonBlocking) {
            printf("not doing secure renegotiation on example with"
                   " nonblocking yet");
        } else {
            if (wolfSSL_Rehandshake(ssl) != SSL_SUCCESS) {
                int  err = wolfSSL_get_error(ssl, 0);
                char buffer[WOLFSSL_MAX_ERROR_SZ];
                printf("err = %d, %s\n", err,
                                wolfSSL_ERR_error_string(err, buffer));
                err_sys("wolfSSL_Rehandshake failed");
            }
        }
    }
#endif /* HAVE_SECURE_RENEGOTIATION */

    if (sendGET) {
        printf("SSL connect ok, sending GET...\n");
        msgSz = 28;
        strncpy(msg, "GET /index.html HTTP/1.0\r\n\r\n", msgSz);
        msg[msgSz] = '\0';

        resumeSz = msgSz;
        strncpy(resumeMsg, "GET /index.html HTTP/1.0\r\n\r\n", resumeSz);
        resumeMsg[resumeSz] = '\0';
    }
    if (wolfSSL_write(ssl, msg, msgSz) != msgSz)
        err_sys("SSL_write failed");

    input = wolfSSL_read(ssl, reply, sizeof(reply)-1);
    if (input > 0) {
        reply[input] = 0;
        printf("Server response: %s\n", reply);

        if (sendGET) {  /* get html */
            while (1) {
                input = wolfSSL_read(ssl, reply, sizeof(reply)-1);
                if (input > 0) {
                    reply[input] = 0;
                    printf("%s\n", reply);
                }
                else
                    break;
            }
        }
    }
    else if (input < 0) {
        int readErr = wolfSSL_get_error(ssl, 0);
        if (readErr != SSL_ERROR_WANT_READ)
            err_sys("wolfSSL_read failed");
    }

#ifndef NO_SESSION_CACHE
    if (resumeSession) {
        session   = wolfSSL_get_session(ssl);
        sslResume = wolfSSL_new(ctx);
        if (sslResume == NULL)
            err_sys("unable to get SSL object");
    }
#endif

    if (doDTLS == 0) {           /* don't send alert after "break" command */
        ret = wolfSSL_shutdown(ssl);
        if (wc_shutdown && ret == SSL_SHUTDOWN_NOT_DONE)
            wolfSSL_shutdown(ssl);    /* bidirectional shutdown */
    }
#ifdef ATOMIC_USER
    if (atomicUser)
        FreeAtomicUser(ssl);
#endif
    wolfSSL_free(ssl);
    CloseSocket(sockfd);

#ifndef NO_SESSION_CACHE
    if (resumeSession) {
        if (doDTLS) {
#ifdef USE_WINDOWS_API
            Sleep(500);
#elif defined(WOLFSSL_TIRTOS)
            Task_sleep(1);
#else
            sleep(1);
#endif
        }
        tcp_connect(&sockfd, host, port, doDTLS, sslResume);
        wolfSSL_set_fd(sslResume, sockfd);
#ifdef HAVE_ALPN
        if (alpnList != NULL) {
            printf("ALPN accepted protocols list : %s\n", alpnList);
            wolfSSL_UseALPN(sslResume, alpnList, (word32)XSTRLEN(alpnList),
                            alpn_opt);
        }
#endif
#ifdef HAVE_SECURE_RENEGOTIATION
        if (scr) {
            if (wolfSSL_UseSecureRenegotiation(sslResume) != SSL_SUCCESS)
                err_sys("can't enable secure renegotiation");
        }
#endif
        wolfSSL_set_session(sslResume, session);
#ifdef HAVE_SESSION_TICKET
        wolfSSL_set_SessionTicket_cb(sslResume, sessionTicketCB,
                                    (void*)"resumed session");
#endif

#ifndef WOLFSSL_CALLBACKS
        if (nonBlocking) {
            wolfSSL_set_using_nonblock(sslResume, 1);
            tcp_set_nonblocking(&sockfd);
            NonBlockingSSL_Connect(sslResume);
        }
        else if (wolfSSL_connect(sslResume) != SSL_SUCCESS)
            err_sys("SSL resume failed");
#else
        timeout.tv_sec  = 2;
        timeout.tv_usec = 0;
        NonBlockingSSL_Connect(ssl);  /* will keep retrying on timeout */
#endif
        showPeer(sslResume);

        if (wolfSSL_session_reused(sslResume))
            printf("reused session id\n");
        else
            printf("didn't reuse session id!!!\n");

#ifdef HAVE_ALPN
        if (alpnList != NULL) {
            int err;
            char *protocol_name = NULL;
            word16 protocol_nameSz = 0;

            printf("Sending ALPN accepted list : %s\n", alpnList);
            err = wolfSSL_ALPN_GetProtocol(sslResume, &protocol_name,
                                           &protocol_nameSz);
            if (err == SSL_SUCCESS)
                printf("Received ALPN protocol : %s (%d)\n",
                       protocol_name, protocol_nameSz);
            else if (err == SSL_ALPN_NOT_FOUND)
                printf("Not received ALPN response (no match with server)\n");
            else
                printf("Getting ALPN protocol name failed\n");
        }
#endif
        if (wolfSSL_write(sslResume, resumeMsg, resumeSz) != resumeSz)
            err_sys("SSL_write failed");

        if (nonBlocking) {
            /* give server a chance to bounce a message back to client */
            #ifdef USE_WINDOWS_API
                Sleep(500);
            #elif defined(WOLFSSL_TIRTOS)
                Task_sleep(1);
            #else
                sleep(1);
            #endif
        }

    input = wolfSSL_read(sslResume, reply, sizeof(reply)-1);

    if (input > 0) {
        reply[input] = 0;
        printf("Server resume response: %s\n", reply);

        if (sendGET) {  /* get html */
            while (1) {
                input = wolfSSL_read(sslResume, reply, sizeof(reply)-1);
                if (input > 0) {
                    reply[input] = 0;
                    printf("%s\n", reply);
                }
                else
                    break;
            }
        }
    } else if (input < 0) {
        int readErr = wolfSSL_get_error(ssl, 0);
        if (readErr != SSL_ERROR_WANT_READ)
            err_sys("wolfSSL_read failed");
    }

        /* try to send session break */
        wolfSSL_write(sslResume, msg, msgSz);

        ret = wolfSSL_shutdown(sslResume);
        if (wc_shutdown && ret == SSL_SHUTDOWN_NOT_DONE)
            wolfSSL_shutdown(sslResume);    /* bidirectional shutdown */

        wolfSSL_free(sslResume);
        CloseSocket(sockfd);
    }
#endif /* NO_SESSION_CACHE */

    wolfSSL_CTX_free(ctx);

    ((func_args*)args)->return_code = 0;

#ifdef USE_WOLFSSL_MEMORY
    if (trackMemory)
        ShowMemoryTracker();
#endif /* USE_WOLFSSL_MEMORY */

#if !defined(WOLFSSL_TIRTOS)
    return 0;
#endif
}
Ejemplo n.º 18
0
static THREAD_RETURN WOLFSSL_THREAD test_server_nofail(void* args)
{
    SOCKET_T sockfd = 0;
    SOCKET_T clientfd = 0;
    word16 port = wolfSSLPort;

    WOLFSSL_METHOD* method = 0;
    WOLFSSL_CTX* ctx = 0;
    WOLFSSL* ssl = 0;

    char msg[] = "I hear you fa shizzle!";
    char input[1024];
    int idx;

#ifdef WOLFSSL_TIRTOS
    fdOpenSession(Task_self());
#endif

    ((func_args*)args)->return_code = TEST_FAIL;
    method = wolfSSLv23_server_method();
    ctx = wolfSSL_CTX_new(method);

#if defined(NO_MAIN_DRIVER) && !defined(USE_WINDOWS_API) && \
   !defined(WOLFSSL_SNIFFER) && !defined(WOLFSSL_MDK_SHELL) && \
   !defined(WOLFSSL_TIRTOS)
    port = 0;
#endif

    wolfSSL_CTX_set_verify(ctx,
                          SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, 0);

#ifdef OPENSSL_EXTRA
    wolfSSL_CTX_set_default_passwd_cb(ctx, PasswordCallBack);
#endif

    if (wolfSSL_CTX_load_verify_locations(ctx, cliCert, 0) != SSL_SUCCESS)
    {
        /*err_sys("can't load ca file, Please run from wolfSSL home dir");*/
        goto done;
    }
    if (wolfSSL_CTX_use_certificate_file(ctx, svrCert, SSL_FILETYPE_PEM)
            != SSL_SUCCESS)
    {
        /*err_sys("can't load server cert chain file, "
                "Please run from wolfSSL home dir");*/
        goto done;
    }
    if (wolfSSL_CTX_use_PrivateKey_file(ctx, svrKey, SSL_FILETYPE_PEM)
            != SSL_SUCCESS)
    {
        /*err_sys("can't load server key file, "
                "Please run from wolfSSL home dir");*/
        goto done;
    }

    ssl = wolfSSL_new(ctx);
    tcp_accept(&sockfd, &clientfd, (func_args*)args, port, 0, 0, 0);
    CloseSocket(sockfd);

    wolfSSL_set_fd(ssl, clientfd);

#ifdef NO_PSK
    #if !defined(NO_FILESYSTEM) && !defined(NO_DH)
        wolfSSL_SetTmpDH_file(ssl, dhParam, SSL_FILETYPE_PEM);
    #elif !defined(NO_DH)
        SetDH(ssl);  /* will repick suites with DHE, higher priority than PSK */
    #endif
#endif

    if (wolfSSL_accept(ssl) != SSL_SUCCESS)
    {
        int err = wolfSSL_get_error(ssl, 0);
        char buffer[WOLFSSL_MAX_ERROR_SZ];
        printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
        /*err_sys("SSL_accept failed");*/
        goto done;
    }

    idx = wolfSSL_read(ssl, input, sizeof(input)-1);
    if (idx > 0) {
        input[idx] = 0;
        printf("Client message: %s\n", input);
    }

    if (wolfSSL_write(ssl, msg, sizeof(msg)) != sizeof(msg))
    {
        /*err_sys("SSL_write failed");*/
#ifdef WOLFSSL_TIRTOS
        return;
#else
        return 0;
#endif
    }

#ifdef WOLFSSL_TIRTOS
    Task_yield();
#endif

done:
    wolfSSL_shutdown(ssl);
    wolfSSL_free(ssl);
    wolfSSL_CTX_free(ctx);

    CloseSocket(clientfd);
    ((func_args*)args)->return_code = TEST_SUCCESS;

#ifdef WOLFSSL_TIRTOS
    fdCloseSession(Task_self());
#endif

#if defined(NO_MAIN_DRIVER) && defined(HAVE_ECC) && defined(FP_ECC) \
                            && defined(HAVE_THREAD_LS)
    wc_ecc_fp_free();  /* free per thread cache */
#endif

#ifndef WOLFSSL_TIRTOS
    return 0;
#endif
}
Ejemplo n.º 19
0
static void run_wolfssl_client(void* args)
{
    callback_functions* callbacks = ((func_args*)args)->callbacks;

    WOLFSSL_CTX* ctx = wolfSSL_CTX_new(callbacks->method());
    WOLFSSL*     ssl = NULL;
    SOCKET_T    sfd = 0;

    char msg[] = "hello wolfssl server!";
    int  len   = (int) XSTRLEN(msg);
    char input[1024];
    int  idx;

#ifdef WOLFSSL_TIRTOS
    fdOpenSession(Task_self());
#endif

    ((func_args*)args)->return_code = TEST_FAIL;

#ifdef OPENSSL_EXTRA
    wolfSSL_CTX_set_default_passwd_cb(ctx, PasswordCallBack);
#endif

    AssertIntEQ(SSL_SUCCESS, wolfSSL_CTX_load_verify_locations(ctx, caCert, 0));

    AssertIntEQ(SSL_SUCCESS,
               wolfSSL_CTX_use_certificate_file(ctx, cliCert, SSL_FILETYPE_PEM));

    AssertIntEQ(SSL_SUCCESS,
                 wolfSSL_CTX_use_PrivateKey_file(ctx, cliKey, SSL_FILETYPE_PEM));

    if (callbacks->ctx_ready)
        callbacks->ctx_ready(ctx);

    tcp_connect(&sfd, wolfSSLIP, ((func_args*)args)->signal->port, 0);

    ssl = wolfSSL_new(ctx);
    wolfSSL_set_fd(ssl, sfd);

    if (callbacks->ssl_ready)
        callbacks->ssl_ready(ssl);

    if (wolfSSL_connect(ssl) != SSL_SUCCESS) {
        int err = wolfSSL_get_error(ssl, 0);
        char buffer[WOLFSSL_MAX_ERROR_SZ];
        printf("error = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));

    } else {
        AssertIntEQ(len, wolfSSL_write(ssl, msg, len));

        if (0 < (idx = wolfSSL_read(ssl, input, sizeof(input)-1))) {
            input[idx] = 0;
            printf("Server response: %s\n", input);
        }
    }

    if (callbacks->on_result)
        callbacks->on_result(ssl);

    wolfSSL_free(ssl);
    wolfSSL_CTX_free(ctx);
    CloseSocket(sfd);
    ((func_args*)args)->return_code = TEST_SUCCESS;

#ifdef WOLFSSL_TIRTOS
    fdCloseSession(Task_self());
#endif
}
Ejemplo n.º 20
0
int main(int argc, char** argv)
{
    /* cont short for "continue?", Loc short for "location" */
    int         cont = 0;
    char        caCertLoc[] = "../certs/ca-cert.pem";
    char        servCertLoc[] = "../certs/server-cert.pem";
    char        servKeyLoc[] = "../certs/server-key.pem";
    WOLFSSL_CTX* ctx;
    /* Variables for awaiting datagram */
    int           on = 1;
    int           res = 1;
    int           connfd = 0;
    int           recvLen = 0;    /* length of message */
    int           listenfd = 0;   /* Initialize our socket */
    WOLFSSL*      ssl = NULL;
    socklen_t     cliLen;
    socklen_t     len = sizeof(int);
    unsigned char b[MSGLEN];      /* watch for incoming messages */
    char          buff[MSGLEN];   /* the incoming message */
    char          ack[] = "I hear you fashizzle!\n";
    
    /* Code for handling signals */
    struct sigaction act, oact;
    act.sa_handler = sig_handler;
    sigemptyset(&act.sa_mask);
    act.sa_flags = 0;
    sigaction(SIGINT, &act, &oact);

    /* "./config --enable-debug" and uncomment next line for debugging */
    /* wolfSSL_Debugging_ON(); */

    /* Initialize wolfSSL */
    wolfSSL_Init();

    /* Set ctx to DTLS 1.2 */
    if ((ctx = wolfSSL_CTX_new(wolfDTLSv1_2_server_method())) == NULL) {
        printf("wolfSSL_CTX_new error.\n");
        return 1;
    }
    /* Load CA certificates */
    if (wolfSSL_CTX_load_verify_locations(ctx,caCertLoc,0) !=
            SSL_SUCCESS) {
        printf("Error loading %s, please check the file.\n", caCertLoc);
        return 1;
    }
    /* Load server certificates */
    if (wolfSSL_CTX_use_certificate_file(ctx, servCertLoc, SSL_FILETYPE_PEM) != 
                                                                 SSL_SUCCESS) {
        printf("Error loading %s, please check the file.\n", servCertLoc);
        return 1;
    }
    /* Load server Keys */
    if (wolfSSL_CTX_use_PrivateKey_file(ctx, servKeyLoc,
                SSL_FILETYPE_PEM) != SSL_SUCCESS) {
        printf("Error loading %s, please check the file.\n", servKeyLoc);
        return 1;
    }

    /* Await Datagram */
    while (cleanup != 1) {

        /* Create a UDP/IP socket */
        if ((listenfd = socket(AF_INET6, SOCK_DGRAM, 0)) < 0 ) {
            printf("Cannot create socket.\n");
            cleanup = 1;
        }
        printf("Socket allocated\n");

        /* clear servAddr each loop */
        memset((char *)&servAddr, 0, sizeof(servAddr));

        /* host-to-network-long conversion (htonl) */
        /* host-to-network-short conversion (htons) */
        servAddr.sin6_family      = AF_INET6;
        servAddr.sin6_port        = htons(SERV_PORT);

        /* Eliminate socket already in use error */
        res = setsockopt(listenfd, SOL_SOCKET, SO_REUSEADDR, &on, len);
        if (res < 0) {
            printf("Setsockopt SO_REUSEADDR failed.\n");
            cleanup = 1;
            cont = 1;
        }

        /*Bind Socket*/
        if (bind(listenfd, (struct sockaddr*)&servAddr, sizeof(servAddr)) < 0) {
            printf("Bind failed.\n");
            cleanup = 1;
            cont = 1;
        }

        printf("Awaiting client connection on port %d\n", SERV_PORT);

        cliLen = sizeof(cliaddr);
        connfd = (int)recvfrom(listenfd, (char *)&b, sizeof(b), MSG_PEEK,
                (struct sockaddr*)&cliaddr, &cliLen);

        if (connfd < 0) {
            printf("No clients in que, enter idle state\n");
            continue;
        }
        else if (connfd > 0) {
            if (connect(listenfd, (const struct sockaddr *)&cliaddr,
                        sizeof(cliaddr)) != 0) {
                printf("Udp connect failed.\n");
                cleanup = 1;
                cont = 1;
            }
        }
        else {
            printf("Recvfrom failed.\n");
            cleanup = 1;
            cont = 1;
        }
        printf("Connected!\n");

        /* Create the WOLFSSL Object */
        if ((ssl = wolfSSL_new(ctx)) == NULL) {
            printf("wolfSSL_new error.\n");
            cleanup = 1;
            cont = 1;
        }

        /* set the session ssl to client connection port */
        wolfSSL_set_fd(ssl, listenfd);

        if (wolfSSL_accept(ssl) != SSL_SUCCESS) {

            int e = wolfSSL_get_error(ssl, 0);

            printf("error = %d, %s\n", e, wolfSSL_ERR_reason_error_string(e));
            printf("SSL_accept failed.\n");
            continue;
        }
        if ((recvLen = wolfSSL_read(ssl, buff, sizeof(buff)-1)) > 0) {
            printf("heard %d bytes\n", recvLen);

            buff[recvLen] = 0;
            printf("I heard this: \"%s\"\n", buff);
        }
        else if (recvLen < 0) {
            int readErr = wolfSSL_get_error(ssl, 0);
            if(readErr != SSL_ERROR_WANT_READ) {
                printf("SSL_read failed.\n");
                cleanup = 1;
                cont = 1;
            }
        }
        if (wolfSSL_write(ssl, ack, sizeof(ack)) < 0) {
            printf("wolfSSL_write fail.\n");
            cleanup = 1;
            cont = 1;
        }
        else {
            printf("Sending reply.\n");
        }

        printf("reply sent \"%s\"\n", ack);

        wolfSSL_set_fd(ssl, 0);
        wolfSSL_shutdown(ssl);
        wolfSSL_free(ssl);

        printf("Client left cont to idle state\n");
        cont = 0;
    }
    
    /* With the "continue" keywords, it is possible for the loop to exit *
     * without changing the value of cont                                */
    if (cleanup == 1) {
        cont = 1;
    }

    if (cont == 1) {
        wolfSSL_CTX_free(ctx);
        wolfSSL_Cleanup();
    }

    return 0;
}
Ejemplo n.º 21
0
static void test_client_nofail(void* args)
{
    SOCKET_T sockfd = 0;

    WOLFSSL_METHOD*  method  = 0;
    WOLFSSL_CTX*     ctx     = 0;
    WOLFSSL*         ssl     = 0;

    char msg[64] = "hello wolfssl!";
    char reply[1024];
    int  input;
    int  msgSz = (int)strlen(msg);

#ifdef WOLFSSL_TIRTOS
    fdOpenSession(Task_self());
#endif

    ((func_args*)args)->return_code = TEST_FAIL;
    method = wolfSSLv23_client_method();
    ctx = wolfSSL_CTX_new(method);

#ifdef OPENSSL_EXTRA
    wolfSSL_CTX_set_default_passwd_cb(ctx, PasswordCallBack);
#endif

    if (wolfSSL_CTX_load_verify_locations(ctx, caCert, 0) != SSL_SUCCESS)
    {
        /* err_sys("can't load ca file, Please run from wolfSSL home dir");*/
        goto done2;
    }
    if (wolfSSL_CTX_use_certificate_file(ctx, cliCert, SSL_FILETYPE_PEM)
            != SSL_SUCCESS)
    {
        /*err_sys("can't load client cert file, "
                "Please run from wolfSSL home dir");*/
        goto done2;
    }
    if (wolfSSL_CTX_use_PrivateKey_file(ctx, cliKey, SSL_FILETYPE_PEM)
            != SSL_SUCCESS)
    {
        /*err_sys("can't load client key file, "
                "Please run from wolfSSL home dir");*/
        goto done2;
    }

    tcp_connect(&sockfd, wolfSSLIP, ((func_args*)args)->signal->port, 0);

    ssl = wolfSSL_new(ctx);
    wolfSSL_set_fd(ssl, sockfd);
    if (wolfSSL_connect(ssl) != SSL_SUCCESS)
    {
        int  err = wolfSSL_get_error(ssl, 0);
        char buffer[WOLFSSL_MAX_ERROR_SZ];
        printf("err = %d, %s\n", err, wolfSSL_ERR_error_string(err, buffer));
        /*printf("SSL_connect failed");*/
        goto done2;
    }

    if (wolfSSL_write(ssl, msg, msgSz) != msgSz)
    {
        /*err_sys("SSL_write failed");*/
        goto done2;
    }

    input = wolfSSL_read(ssl, reply, sizeof(reply)-1);
    if (input > 0)
    {
        reply[input] = 0;
        printf("Server response: %s\n", reply);
    }

done2:
    wolfSSL_free(ssl);
    wolfSSL_CTX_free(ctx);

    CloseSocket(sockfd);
    ((func_args*)args)->return_code = TEST_SUCCESS;

#ifdef WOLFSSL_TIRTOS
    fdCloseSession(Task_self());
#endif

    return;
}