static int NonBlockingSSL_Accept(SSL* ssl)
{
#ifndef CYASSL_CALLBACKS
int ret = SSL_accept(ssl);
#else
int ret = CyaSSL_accept_ex(ssl, srvHandShakeCB, srvTimeoutCB, srvTo);
#endif
int error = SSL_get_error(ssl, 0);
SOCKET_T sockfd = (SOCKET_T)CyaSSL_get_fd(ssl);
int select_ret;
while (ret != SSL_SUCCESS && (error == SSL_ERROR_WANT_READ ||
error == SSL_ERROR_WANT_WRITE)) {
int currTimeout = 1;
if (error == SSL_ERROR_WANT_READ) {
/* printf("... server would read block\n"); */
} else {
/* printf("... server would write block\n"); */
}
#ifdef CYASSL_DTLS
currTimeout = CyaSSL_dtls_get_current_timeout(ssl);
#endif
select_ret = tcp_select(sockfd, currTimeout);
if ((select_ret == TEST_RECV_READY) ||
(select_ret == TEST_ERROR_READY)) {
#ifndef CYASSL_CALLBACKS
ret = SSL_accept(ssl);
#else
ret = CyaSSL_accept_ex(ssl,
srvHandShakeCB, srvTimeoutCB, srvTo);
#endif
error = SSL_get_error(ssl, 0);
}
else if (select_ret == TEST_TIMEOUT && !CyaSSL_dtls(ssl)) {
error = SSL_ERROR_WANT_READ;
}
#ifdef CYASSL_DTLS
else if (select_ret == TEST_TIMEOUT && CyaSSL_dtls(ssl) &&
CyaSSL_dtls_got_timeout(ssl) >= 0) {
error = SSL_ERROR_WANT_READ;
}
#endif
else {
error = SSL_FATAL_ERROR;
}
}
return ret;
}
static void NonBlockingSSL_Connect(CYASSL* ssl)
{
#ifndef CYASSL_CALLBACKS
int ret = CyaSSL_connect(ssl);
#else
int ret = CyaSSL_connect_ex(ssl, handShakeCB, timeoutCB, timeout);
#endif
int error = CyaSSL_get_error(ssl, 0);
SOCKET_T sockfd = (SOCKET_T)CyaSSL_get_fd(ssl);
int select_ret;
while (ret != SSL_SUCCESS && (error == SSL_ERROR_WANT_READ ||
error == SSL_ERROR_WANT_WRITE)) {
int currTimeout = 1;
if (error == SSL_ERROR_WANT_READ)
printf("... client would read block\n");
else
printf("... client would write block\n");
#ifdef CYASSL_DTLS
currTimeout = CyaSSL_dtls_get_current_timeout(ssl);
#endif
select_ret = tcp_select(sockfd, currTimeout);
if ((select_ret == TEST_RECV_READY) ||
(select_ret == TEST_ERROR_READY)) {
#ifndef CYASSL_CALLBACKS
ret = CyaSSL_connect(ssl);
#else
ret = CyaSSL_connect_ex(ssl,handShakeCB,timeoutCB,timeout);
#endif
error = CyaSSL_get_error(ssl, 0);
}
else if (select_ret == TEST_TIMEOUT && !CyaSSL_dtls(ssl)) {
error = SSL_ERROR_WANT_READ;
}
#ifdef CYASSL_DTLS
else if (select_ret == TEST_TIMEOUT && CyaSSL_dtls(ssl) &&
CyaSSL_dtls_got_timeout(ssl) >= 0) {
error = SSL_ERROR_WANT_READ;
}
#endif
else {
error = SSL_FATAL_ERROR;
}
}
if (ret != SSL_SUCCESS)
err_sys("SSL_connect failed");
}
static void NonBlockingSSL_Accept(SSL* ssl)
{
#ifndef CYASSL_CALLBACKS
int ret = SSL_accept(ssl);
#else
int ret = CyaSSL_accept_ex(ssl, srvHandShakeCB, srvTimeoutCB, srvTo);
#endif
int error = SSL_get_error(ssl, 0);
SOCKET_T sockfd = (SOCKET_T)CyaSSL_get_fd(ssl);
int select_ret;
while (ret != SSL_SUCCESS && (error == SSL_ERROR_WANT_READ ||
error == SSL_ERROR_WANT_WRITE)) {
if (error == SSL_ERROR_WANT_READ)
printf("... server would read block\n");
else
printf("... server would write block\n");
if (CyaSSL_dtls(ssl))
select_ret = tcp_select(sockfd,
CyaSSL_dtls_get_current_timeout(ssl));
else
select_ret = tcp_select(sockfd, 1);
if ((select_ret == TEST_RECV_READY) ||
(select_ret == TEST_ERROR_READY)) {
#ifndef CYASSL_CALLBACKS
ret = SSL_accept(ssl);
#else
ret = CyaSSL_accept_ex(ssl,
srvHandShakeCB, srvTimeoutCB, srvTo);
#endif
error = SSL_get_error(ssl, 0);
}
else if (select_ret == TEST_TIMEOUT &&
(!CyaSSL_dtls(ssl) ||
(CyaSSL_dtls_got_timeout(ssl) >= 0))) {
error = SSL_ERROR_WANT_READ;
}
else {
error = SSL_FATAL_ERROR;
}
}
if (ret != SSL_SUCCESS)
err_sys("SSL_accept failed");
}
/* Connect using Nonblocking - DTLS version */
static void NonBlockingDTLS_Connect(CYASSL* ssl)
{
int ret = CyaSSL_connect(ssl);
int error = CyaSSL_get_error(ssl, 0);
int sockfd = (int)CyaSSL_get_fd(ssl);
int select_ret;
while (ret != SSL_SUCCESS && (error == SSL_ERROR_WANT_READ ||
error == SSL_ERROR_WANT_WRITE)) {
int currTimeout = 1;
if (error == SSL_ERROR_WANT_READ)
printf("... client would read block\n");
else
printf("... client would write block\n");
currTimeout = CyaSSL_dtls_get_current_timeout(ssl);
select_ret = dtls_select(sockfd, currTimeout);
if ( ( select_ret == TEST_RECV_READY) ||
(select_ret == TEST_ERROR_READY)) {
ret = CyaSSL_connect(ssl);
error = CyaSSL_get_error(ssl, 0);
}
else if (select_ret == TEST_TIMEOUT && !CyaSSL_dtls(ssl)) {
error = 2;
}
else if (select_ret == TEST_TIMEOUT && CyaSSL_dtls(ssl) &&
CyaSSL_dtls_got_timeout(ssl) >= 0) {
error = 2;
}
else{
error = SSL_FATAL_ERROR;
}
}
if (ret != SSL_SUCCESS) {
printf("SSL_connect failed with");
}
}
/*
* function with specific parameters : inbetween process of receiving msg
* based from embeded receive in src/io.c
*/
int CbIORecv(CYASSL *ssl, char *buf, int sz, void *ctx)
{
int recvd;
int sd = *(int*)ctx;
recvd = recv(sd, buf, sz, 0);
if (recvd < 0) {
if (errno == SOCKET_EWOULDBLOCK || errno == SOCKET_EAGAIN) {
if (!CyaSSL_dtls(ssl) || CyaSSL_get_using_nonblock(ssl)) {
printf(" Would block\n");
return CYASSL_CBIO_ERR_WANT_READ;
}
else {
printf("Socket timeout\n");
return CYASSL_CBIO_ERR_TIMEOUT;
}
}
else if (errno == SOCKET_ECONNRESET) {
printf("Connection reset\n");
return CYASSL_CBIO_ERR_CONN_RST;
}
else if (errno == SOCKET_EINTR) {
printf("Socket interrupted\n");
return CYASSL_CBIO_ERR_ISR;
}
else if (errno == SOCKET_ECONNREFUSED) {
printf("Connection refused\n");
return CYASSL_CBIO_ERR_WANT_READ;
}
else if (errno == SOCKET_ECONNABORTED) {
printf("Connection aborted\n");
return CYASSL_CBIO_ERR_CONN_CLOSE;
}
else {
printf("General error\n");
return CYASSL_CBIO_ERR_GENERAL;
}
}
else if (recvd == 0) {
printf("Embed receive connection closed\n");
return CYASSL_CBIO_ERR_CONN_CLOSE;
}
printf("Received %d bytes\n", sz);
return recvd;
}
/* The receive embedded callback
* return : nb bytes read, or error
*/
int EmbedReceive(CYASSL *ssl, char *buf, int sz, void *ctx)
{
int recvd;
int err;
int sd = *(int*)ctx;
#ifdef CYASSL_DTLS
{
int dtls_timeout = CyaSSL_dtls_get_current_timeout(ssl);
if (CyaSSL_dtls(ssl)
&& !CyaSSL_get_using_nonblock(ssl)
&& dtls_timeout != 0) {
#ifdef USE_WINDOWS_API
DWORD timeout = dtls_timeout * 1000;
#else
struct timeval timeout;
XMEMSET(&timeout, 0, sizeof(timeout));
timeout.tv_sec = dtls_timeout;
#endif
if (setsockopt(sd, SOL_SOCKET, SO_RCVTIMEO, (char*)&timeout,
sizeof(timeout)) != 0) {
CYASSL_MSG("setsockopt rcvtimeo failed");
}
}
}
#endif
recvd = (int)RECV_FUNCTION(sd, buf, sz, ssl->rflags);
recvd = TranslateReturnCode(recvd, sd);
if (recvd < 0) {
err = LastError();
CYASSL_MSG("Embed Receive error");
if (err == SOCKET_EWOULDBLOCK || err == SOCKET_EAGAIN) {
if (!CyaSSL_dtls(ssl) || CyaSSL_get_using_nonblock(ssl)) {
CYASSL_MSG(" Would block");
return CYASSL_CBIO_ERR_WANT_READ;
}
else {
CYASSL_MSG(" Socket timeout");
return CYASSL_CBIO_ERR_TIMEOUT;
}
}
else if (err == SOCKET_ECONNRESET) {
CYASSL_MSG(" Connection reset");
return CYASSL_CBIO_ERR_CONN_RST;
}
else if (err == SOCKET_EINTR) {
CYASSL_MSG(" Socket interrupted");
return CYASSL_CBIO_ERR_ISR;
}
else if (err == SOCKET_ECONNREFUSED) {
CYASSL_MSG(" Connection refused");
return CYASSL_CBIO_ERR_WANT_READ;
}
else if (err == SOCKET_ECONNABORTED) {
CYASSL_MSG(" Connection aborted");
return CYASSL_CBIO_ERR_CONN_CLOSE;
}
else {
CYASSL_MSG(" General error");
return CYASSL_CBIO_ERR_GENERAL;
}
}
else if (recvd == 0) {
CYASSL_MSG("Embed receive connection closed");
return CYASSL_CBIO_ERR_CONN_CLOSE;
}
return recvd;
}
