bool NET_PRES_EncProviderStreamClientInit0(NET_PRES_TransportObject * transObject)
{
const uint8_t * caCertsPtr;
int32_t caCertsLen;
if (!NET_PRES_CertStoreGetCACerts(&caCertsPtr, &caCertsLen, 0))
{
return false;
}
if (_net_pres_wolfsslUsers == 0)
{
wolfSSL_Init();
_net_pres_wolfsslUsers++;
}
net_pres_wolfSSLInfoStreamClient0.transObject = transObject;
net_pres_wolfSSLInfoStreamClient0.context = wolfSSL_CTX_new(wolfSSLv23_client_method());
if (net_pres_wolfSSLInfoStreamClient0.context == 0)
{
return false;
}
wolfSSL_SetIORecv(net_pres_wolfSSLInfoStreamClient0.context, (CallbackIORecv)&NET_PRES_EncGlue_StreamClientReceiveCb0);
wolfSSL_SetIOSend(net_pres_wolfSSLInfoStreamClient0.context, (CallbackIOSend)&NET_PRES_EncGlue_StreamClientSendCb0);
if (wolfSSL_CTX_load_verify_buffer(net_pres_wolfSSLInfoStreamClient0.context, caCertsPtr, caCertsLen, SSL_FILETYPE_ASN1) != SSL_SUCCESS)
{
// Couldn't load the certificates
//SYS_CONSOLE_MESSAGE("Something went wrong loading the certificates\r\n");
wolfSSL_CTX_free(net_pres_wolfSSLInfoStreamClient0.context);
return false;
}
// Turn off verification, because SNTP is usually blocked by a firewall
wolfSSL_CTX_set_verify(net_pres_wolfSSLInfoStreamClient0.context, SSL_VERIFY_NONE, 0);
net_pres_wolfSSLInfoStreamClient0.isInited = true;
return true;
}
/* Use this callback to setup TLS certificates and verify callbacks */
static int mqtt_aws_tls_cb(MqttClient* client)
{
int rc = SSL_FAILURE;
client->tls.ctx = wolfSSL_CTX_new(wolfTLSv1_2_client_method());
if (client->tls.ctx) {
wolfSSL_CTX_set_verify(client->tls.ctx, SSL_VERIFY_PEER, mqtt_aws_tls_verify_cb);
/* Load CA certificate buffer */
rc = wolfSSL_CTX_load_verify_buffer(client->tls.ctx,
(const byte*)root_ca, (long)XSTRLEN(root_ca), SSL_FILETYPE_PEM);
/* Load Client Cert */
if (rc == SSL_SUCCESS)
rc = wolfSSL_CTX_use_certificate_buffer(client->tls.ctx,
(const byte*)device_cert, (long)XSTRLEN(device_cert), SSL_FILETYPE_PEM);
/* Load Private Key */
if (rc == SSL_SUCCESS)
rc = wolfSSL_CTX_use_PrivateKey_buffer(client->tls.ctx,
(const byte*)device_priv_key, (long)XSTRLEN(device_priv_key), SSL_FILETYPE_PEM);
}
PRINTF("MQTT TLS Setup (%d)", rc);
return rc;
}
/* Create a new wolfSSL client with a server CA certificate. */
static int wolfssl_client_new(WOLFSSL_CTX** ctx, WOLFSSL** ssl)
{
int ret = 0;
WOLFSSL_CTX* client_ctx = NULL;
WOLFSSL* client_ssl = NULL;
/* Create and initialize WOLFSSL_CTX */
if ((client_ctx = wolfSSL_CTX_new_ex(wolfTLSv1_2_client_method(),
HEAP_HINT_CLIENT)) == NULL) {
printf("ERROR: failed to create WOLFSSL_CTX\n");
ret = -1;
}
if (ret == 0) {
/* Load CA certificates into WOLFSSL_CTX */
if (wolfSSL_CTX_load_verify_buffer(client_ctx, CA_CERTS, CA_CERTS_LEN,
WOLFSSL_FILETYPE_ASN1) != WOLFSSL_SUCCESS) {
printf("ERROR: failed to load CA certificate\n");
ret = -1;
}
}
if (ret == 0) {
/* Register callbacks */
wolfSSL_SetIORecv(client_ctx, recv_client);
wolfSSL_SetIOSend(client_ctx, send_client);
}
if (ret == 0) {
/* Create a WOLFSSL object */
if ((client_ssl = wolfSSL_new(client_ctx)) == NULL) {
printf("ERROR: failed to create WOLFSSL object\n");
ret = -1;
}
}
if (ret == 0) {
/* make wolfSSL object nonblocking */
wolfSSL_set_using_nonblock(client_ssl, 1);
}
if (ret == 0) {
*ctx = client_ctx;
*ssl = client_ssl;
}
else {
if (client_ssl != NULL)
wolfSSL_free(client_ssl);
if (client_ctx != NULL)
wolfSSL_CTX_free(client_ctx);
}
return ret;
}
bool NET_PRES_EncProviderStreamClientInit0(NET_PRES_TransportObject * transObject)
{
const uint8_t * caCertsPtr;
int32_t caCertsLen;
if (!NET_PRES_CertStoreGetCACerts(&caCertsPtr, &caCertsLen, 0))
{
return false;
}
if (_net_pres_wolfsslUsers == 0)
{
wolfSSL_Init();
_net_pres_wolfsslUsers++;
}
net_pres_wolfSSLInfoStreamClient0.transObject = transObject;
net_pres_wolfSSLInfoStreamClient0.context = wolfSSL_CTX_new(wolfSSLv23_client_method());
if (net_pres_wolfSSLInfoStreamClient0.context == 0)
{
return false;
}
wolfSSL_SetIORecv(net_pres_wolfSSLInfoStreamClient0.context, (CallbackIORecv)&NET_PRES_EncGlue_StreamClientReceiveCb0);
wolfSSL_SetIOSend(net_pres_wolfSSLInfoStreamClient0.context, (CallbackIOSend)&NET_PRES_EncGlue_StreamClientSendCb0);
// Turn off verification, because SNTP is usually blocked by a firewall
wolfSSL_CTX_set_verify(net_pres_wolfSSLInfoStreamClient0.context, SSL_VERIFY_NONE, 0);
if (wolfSSL_CTX_load_verify_buffer(net_pres_wolfSSLInfoStreamClient0.context, caCertsPtr, caCertsLen, SSL_FILETYPE_ASN1) != SSL_SUCCESS)
{
// Couldn't load the certificates
wolfSSL_CTX_free(net_pres_wolfSSLInfoStreamClient0.context);
return false;
}
if(wolfSSL_CTX_use_PrivateKey_buffer(net_pres_wolfSSLInfoStreamClient0.context, (unsigned char *)appData.clientKey, strlen((char *)appData.clientKey), SSL_FILETYPE_PEM) != SSL_SUCCESS)
{
// Couldn't load the private key
wolfSSL_CTX_free(net_pres_wolfSSLInfoStreamClient0.context);
return false;
}
// Loading the client cert so that the server can authenticate us (client authentication))
if(wolfSSL_CTX_use_certificate_buffer(net_pres_wolfSSLInfoStreamClient0.context, (unsigned char *)appData.clientCert, strlen((char *)appData.clientCert), SSL_FILETYPE_PEM) != SSL_SUCCESS)
{
// Couldn't load the client certificate
wolfSSL_CTX_free(net_pres_wolfSSLInfoStreamClient0.context);
return false;
}
// Turn off verification, because SNTP is usually blocked by a firewall
wolfSSL_CTX_set_verify(net_pres_wolfSSLInfoStreamClient0.context, SSL_VERIFY_NONE, 0);
net_pres_wolfSSLInfoStreamClient0.isInited = true;
return true;
}
bool WolfSSLConnection::load_certificate(const unsigned char* certificate, size_t size)
{
bool result;
if (sslContext == NULL)
{
LogError("NULL SSL context\r\n");
result = false;
}
else
{
result = (wolfSSL_CTX_load_verify_buffer(sslContext,(unsigned char*)certificate, size, SSL_FILETYPE_PEM) == SSL_SUCCESS);
}
return result;
}
static int add_certificate_to_store(TLS_IO_INSTANCE* tls_io_instance)
{
int result;
if (tls_io_instance->certificate != NULL)
{
int res = wolfSSL_CTX_load_verify_buffer(tls_io_instance->ssl_context, (const unsigned char*)tls_io_instance->certificate, strlen(tls_io_instance->certificate)+1, SSL_FILETYPE_PEM);
if (res != SSL_SUCCESS)
{
result = __LINE__;
}
else
{
result = 0;
}
}
else
{
result = 0;
}
return result;
}
bool NET_PRES_EncProviderStreamClientInit0(NET_PRES_TransportObject * transObject)
{
const uint8_t * caCertsPtr;
const uint8_t * clientCertPtr;
const uint8_t * clientKeyPtr;
int32_t caCertsLen;
int32_t clientCertLen;
int32_t clientKeyLen;
if (!NET_PRES_CertStoreGetCACerts(&caCertsPtr, &caCertsLen, 0))
{
return false;
}
if (!NET_PRES_CertStoreGetClientCerts(&clientCertPtr, &clientCertLen, 0))
{
return false;
}
if (!NET_PRES_CertStoreGetClientKey(&clientKeyPtr, &clientKeyLen, 0))
{
return false;
}
if (_net_pres_wolfsslUsers == 0)
{
wolfSSL_Init();
_net_pres_wolfsslUsers++;
}
net_pres_wolfSSLInfoStreamClient0.transObject = transObject;
net_pres_wolfSSLInfoStreamClient0.context = wolfSSL_CTX_new(wolfSSLv23_client_method());
if (net_pres_wolfSSLInfoStreamClient0.context == 0)
{
return false;
}
wolfSSL_SetIORecv(net_pres_wolfSSLInfoStreamClient0.context, (CallbackIORecv)&NET_PRES_EncGlue_StreamClientReceiveCb0);
wolfSSL_SetIOSend(net_pres_wolfSSLInfoStreamClient0.context, (CallbackIOSend)&NET_PRES_EncGlue_StreamClientSendCb0);
// Loading the rootCA cert so we can authenticate the server certificate given to us
if (wolfSSL_CTX_load_verify_buffer(net_pres_wolfSSLInfoStreamClient0.context, caCertsPtr, caCertsLen, SSL_FILETYPE_ASN1) != SSL_SUCCESS)
{
// Couldn't load the certificates
//SYS_CONSOLE_MESSAGE("Something went wrong loading the certificates\r\n");
wolfSSL_CTX_free(net_pres_wolfSSLInfoStreamClient0.context);
return false;
}
// Loading the private key for client authentication use
if(wolfSSL_CTX_use_PrivateKey_buffer(net_pres_wolfSSLInfoStreamClient0.context, clientKeyPtr, clientKeyLen, SSL_FILETYPE_ASN1) != SSL_SUCCESS)
{
// Couldn't load the private key
//SYS_CONSOLE_MESSAGE("Something went wrong loading the private key\r\n");
wolfSSL_CTX_free(net_pres_wolfSSLInfoStreamClient0.context);
return false;
}
// Loading the client cert so that the server can authenticate us (client authentication))
if(wolfSSL_CTX_use_certificate_buffer(net_pres_wolfSSLInfoStreamClient0.context, clientCertPtr, clientCertLen, SSL_FILETYPE_ASN1) != SSL_SUCCESS)
{
// Couldn't load the client certificate
//SYS_CONSOLE_MESSAGE("Something went wrong loading the client certificate\r\n");
wolfSSL_CTX_free(net_pres_wolfSSLInfoStreamClient0.context);
return false;
}
// Turn on verification, ensure SNTP is not blocked by firewall
// SSL_VERIFY_PEER: This option is turned on by default so technically this
// is not needed
wolfSSL_CTX_set_verify(net_pres_wolfSSLInfoStreamClient0.context, SSL_VERIFY_NONE, 0);
net_pres_wolfSSLInfoStreamClient0.isInited = true;
return true;
}
/*
* ======== tcpHandler ========
* Creates new Task to handle new TCP connections.
*/
Void tcpHandler(UArg arg0, UArg arg1) {
int sockfd;
int ret;
struct sockaddr_in servAddr;
Error_Block eb;
bool flag = true;
bool internal_flag = true;
int nbytes;
char *buffer;
char msg[] = "Hello from TM4C1294XL Connected Launchpad";
WOLFSSL* ssl = (WOLFSSL *) arg0;
fdOpenSession(TaskSelf());
wolfSSL_Init();
WOLFSSL_CTX* ctx = NULL;
ctx = wolfSSL_CTX_new(wolfTLSv1_2_client_method());
if (ctx == 0) {
System_printf("tcpHandler: wolfSSL_CTX_new error.\n");
exitApp(ctx);
}
if (wolfSSL_CTX_load_verify_buffer(ctx, ca_cert_der_2048,
sizeof(ca_cert_der_2048) / sizeof(char), SSL_FILETYPE_ASN1)
!= SSL_SUCCESS) {
System_printf("tcpHandler: Error loading ca_cert_der_2048"
" please check the wolfssl/certs_test.h file.\n");
exitApp(ctx);
}
if (wolfSSL_CTX_use_certificate_buffer(ctx, client_cert_der_2048,
sizeof(client_cert_der_2048) / sizeof(char), SSL_FILETYPE_ASN1)
!= SSL_SUCCESS) {
System_printf("tcpHandler: Error loading client_cert_der_2048,"
" please check the wolfssl/certs_test.h file.\n");
exitApp(ctx);
}
if (wolfSSL_CTX_use_PrivateKey_buffer(ctx, client_key_der_2048,
sizeof(client_key_der_2048) / sizeof(char), SSL_FILETYPE_ASN1)
!= SSL_SUCCESS) {
System_printf("tcpHandler: Error loading client_key_der_2048,"
" please check the wolfssl/certs_test.h file.\n");
exitApp(ctx);
}
/* Init the Error_Block */
Error_init(&eb);
do {
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd < 0) {
System_printf("tcpHandler: socket failed\n");
Task_sleep(2000);
continue;
}
memset((char *) &servAddr, 0, sizeof(servAddr));
servAddr.sin_family = AF_INET;
servAddr.sin_port = htons(TCPPORT);
inet_aton(IP_ADDR, &servAddr.sin_addr);
ret = connect(sockfd, (struct sockaddr *) &servAddr, sizeof(servAddr));
if (ret < 0) {
fdClose((SOCKET) sockfd);
Task_sleep(2000);
continue;
}
} while (ret != 0);
if ((ssl = wolfSSL_new(ctx)) == NULL) {
System_printf("tcpHandler: wolfSSL_new error.\n");
exitApp(ctx);
}
wolfSSL_set_fd(ssl, sockfd);
ret = wolfSSL_connect(ssl);
/* Delete "TOP_LINE" and "END_LINE" for debugging. */
/* TOP_LINE
System_printf("looked for: %d.\n", SSL_SUCCESS);
System_printf("return was: %d.\n", ret);
int err;
char err_buffer[80];
err = wolfSSL_get_error(ssl, 0);
System_printf("wolfSSL error: %d\n", err);
System_printf("wolfSSL error string: %s\n", wolfSSL_ERR_error_string(err, err_buffer));
END_LINE */
if (ret == SSL_SUCCESS) {
sockfd = wolfSSL_get_fd(ssl);
/* Get a buffer to receive incoming packets. Use the default heap. */
buffer = Memory_alloc(NULL, TCPPACKETSIZE, 0, &eb);
if (buffer == NULL) {
System_printf("tcpWorker: failed to alloc memory\n");
exitApp(ctx);
}
/* Say hello to the server */
while (flag) {
if (wolfSSL_write(ssl, msg, strlen(msg)) != strlen(msg)) {
ret = wolfSSL_get_error(ssl, 0);
System_printf("Write error: %i.\n", ret);
}
while (internal_flag) {
nbytes = wolfSSL_read(ssl, (char *) buffer, TCPPACKETSIZE);
if (nbytes > 0) {
internal_flag = false;
}
}
/* success */
System_printf("Heard: \"%s\".\n", buffer);
wolfSSL_free(ssl);
fdClose((SOCKET) sockfd);
flag = false;
}
/* Free the buffer back to the heap */
Memory_free(NULL, buffer, TCPPACKETSIZE);
/*
* Since deleteTerminatedTasks is set in the cfg file,
* the Task will be deleted when the idle task runs.
*/
exitApp(ctx);
} else {
wolfSSL_free(ssl);
fdClose((SOCKET) sockfd);
System_printf("wolfSSL_connect failed.\n");
fdCloseSession(TaskSelf());
exitApp(ctx);
}
}
