/* Close an active connection.
*
* ctx The SSL/TLS connection data.
* threadData The SSL/TLS connection data for the thread.
* sslConn The SSL connection data object.
*/
static void SSLConn_Close(SSLConn_CTX* ctx, ThreadData* threadData,
SSLConn* sslConn)
{
int ret;
if (sslConn->state == CLOSED)
return;
pthread_mutex_lock(&sslConnMutex);
ret = (ctx->numConnections == 0);
ctx->numConnections++;
if (wolfSSL_session_reused(sslConn->ssl))
ctx->numResumed++;
pthread_mutex_unlock(&sslConnMutex);
if (ret) {
WOLFSSL_CIPHER* cipher;
cipher = wolfSSL_get_current_cipher(sslConn->ssl);
printf("SSL cipher suite is %s\n", wolfSSL_CIPHER_get_name(cipher));
}
sslConn->state = CLOSED;
/* Take it out of the double-linked list. */
if (threadData->sslConn == sslConn)
threadData->sslConn = sslConn->next;
if (sslConn->next != NULL)
sslConn->next->prev = sslConn->prev;
if (sslConn->prev != NULL)
sslConn->prev->next = sslConn->next;
/* Put object at head of free list */
sslConn->next = threadData->freeSSLConn;
sslConn->prev = NULL;
threadData->freeSSLConn = sslConn;
threadData->cnt--;
}
int main()
{
int sd = socket(PF_INET, SOCK_STREAM, IPPROTO_SCTP);
if (sd < 0)
err_sys("sctp socket error");
struct sockaddr_in sa;
memset(&sa, 0, sizeof(sa));
sa.sin_family = AF_INET;
sa.sin_addr.s_addr = htonl(INADDR_ANY);
sa.sin_port = htons(12345);
int ret = bind(sd, (struct sockaddr*)&sa, sizeof(sa));
if (ret < 0)
err_sys("sctp bind error");
listen(sd, 3);
int client_sd = accept(sd, NULL, NULL);
if (client_sd < 0)
err_sys("sctp accept error");
const char* response = "well hello to you";
char buffer[80];
WOLFSSL_CTX* ctx = wolfSSL_CTX_new(wolfDTLSv1_2_server_method());
if (ctx == NULL)
err_sys("ctx new dtls server failed");
ret = wolfSSL_CTX_dtls_set_sctp(ctx);
if (ret != SSL_SUCCESS)
err_sys("set sctp mode failed");
ret = wolfSSL_CTX_use_PrivateKey_file(ctx, key, SSL_FILETYPE_PEM);
if (ret != SSL_SUCCESS)
err_sys("use private key error");
ret = wolfSSL_CTX_use_certificate_file(ctx, cert, SSL_FILETYPE_PEM);
if (ret != SSL_SUCCESS)
err_sys("use cert error");
WOLFSSL* ssl = wolfSSL_new(ctx);
if (ssl == NULL)
err_sys("ssl new dtls server failed");
wolfSSL_set_fd(ssl, client_sd);
ret = wolfSSL_accept(ssl);
if (ret != SSL_SUCCESS)
err_sys("ssl accept failed");
printf("TLS version is %s\n", wolfSSL_get_version(ssl));
printf("Cipher Suite is %s\n",
wolfSSL_CIPHER_get_name(wolfSSL_get_current_cipher(ssl)));
int got = wolfSSL_read(ssl, buffer, sizeof(buffer));
if (got > 0) {
buffer[got] = 0;
printf("client said: %s\n", buffer);
}
wolfSSL_write(ssl, response, (int)strlen(response));
unsigned char bigBuf[4096];
wolfSSL_read(ssl, bigBuf, sizeof(bigBuf));
wolfSSL_write(ssl, bigBuf, sizeof(bigBuf));
wolfSSL_shutdown(ssl);
wolfSSL_free(ssl);
wolfSSL_CTX_free(ctx);
close(sd);
return 0;
}
/* Main entry point for the program.
*
* argc The count of command line arguments.
* argv The command line arguments.
* returns 0 on success and 1 otherwise.
*/
int main(int argc, char* argv[])
{
socklen_t socketfd = -1;
int ch;
WOLFSSL_CTX* ctx = NULL;
SSLConn_CTX* sslConnCtx;
word16 port = wolfSSLPort;
int resumeSession = 0;
char* cipherList = NULL;
char* ourCert = CLI_CERT;
char* ourKey = CLI_KEY;
char* verifyCert = CA_CERT;
int version = SERVER_DEFAULT_VERSION;
int numConns = SSL_NUM_CONN;
int numBytesRead = NUM_READ_BYTES;
int numBytesWrite = NUM_WRITE_BYTES;
int maxBytes = MAX_BYTES;
int maxConns = MAX_CONNECTIONS;
int i;
/* Parse the command line arguments. */
while ((ch = mygetopt(argc, argv, OPTIONS)) != -1) {
switch (ch) {
/* Help with command line options. */
case '?':
Usage();
exit(EXIT_SUCCESS);
/* Port number to connect to. */
case 'p':
port = (word16)atoi(myoptarg);
break;
/* Version of SSL/TLS to use. */
case 'v':
version = atoi(myoptarg);
if (version < 0 || version > 3) {
Usage();
exit(MY_EX_USAGE);
}
break;
/* List of cipher suites to use. */
case 'l':
cipherList = myoptarg;
break;
/* File name of client certificate for client authentication. */
case 'c':
ourCert = myoptarg;
break;
/* File name of client private key for client authentication. */
case 'k':
ourKey = myoptarg;
break;
/* File name of server certificate/CA for peer verification. */
case 'A':
verifyCert = myoptarg;
break;
/* Resume sessions. */
case 'r':
resumeSession = 1;
break;
/* Number of connections to make. */
case 'n':
maxConns = atoi(myoptarg);
if (maxConns < 0 || maxConns > 1000000) {
Usage();
exit(MY_EX_USAGE);
}
maxBytes = 0;
break;
/* Number of conncurrent connections to use. */
case 'N':
numConns = atoi(myoptarg);
if (numConns < 0 || numConns > 1000000) {
Usage();
exit(MY_EX_USAGE);
}
break;
/* Number of bytes to read each call. */
case 'R':
numBytesRead = atoi(myoptarg);
if (numBytesRead <= 0) {
Usage();
exit(MY_EX_USAGE);
}
break;
/* Number of bytes to write each call. */
case 'W':
numBytesWrite = atoi(myoptarg);
if (numBytesWrite <= 0) {
Usage();
exit(MY_EX_USAGE);
}
break;
/* Maximum number of read and write bytes (separate counts). */
case 'B':
maxBytes = atoi(myoptarg);
if (maxBytes <= 0) {
Usage();
exit(MY_EX_USAGE);
}
maxConns = 0;
break;
/* Unrecognized command line argument. */
default:
Usage();
exit(MY_EX_USAGE);
}
}
#ifdef DEBUG_WOLFSSL
wolfSSL_Debugging_ON();
#endif
/* Initialize wolfSSL */
wolfSSL_Init();
/* Initialize wolfSSL and create a context object. */
if (WolfSSLCtx_Init(version, ourCert, ourKey, verifyCert, cipherList, &ctx)
== EXIT_FAILURE)
exit(EXIT_FAILURE);
/* Create SSL/TLS connection data object. */
sslConnCtx = SSLConn_New(numConns, numBytesRead, numBytesWrite,
maxConns, maxBytes, resumeSession);
if (sslConnCtx == NULL)
exit(EXIT_FAILURE);
/* Keep handling connections until all done. */
for (i = 0; !SSLConn_Done(sslConnCtx); i = (i + 1) % numConns) {
SSLConn* sslConn = &sslConnCtx->sslConn[i];
/* Perform close if in CLOSE state. */
if (sslConn->state == CLOSE) {
if (sslConnCtx->numConnections == 0) {
WOLFSSL_CIPHER* cipher;
cipher = wolfSSL_get_current_cipher(sslConn->ssl);
printf("SSL cipher suite is %s\n",
wolfSSL_CIPHER_get_name(cipher));
}
SSLConn_Close(sslConnCtx, sslConn);
}
/* Create TCP connection and connect if in INIT state. */
if ((sslConn->state == INIT) &&
((sslConnCtx->maxConnections <= 0) ||
(sslConnCtx->numCreated < sslConnCtx->maxConnections))) {
if (CreateSocketConnect(port, &socketfd) == EXIT_FAILURE) {
printf("ERROR: failed to connect to server\n");
exit(EXIT_FAILURE);
}
SSLConn_Connect(sslConnCtx, ctx, socketfd, sslConn);
}
#ifdef WOLFSSL_ASYNC_CRYPT
if (sslConn->err == 4) {
int ret;
double start;
start = current_time(1);
ret = wolfSSL_AsyncPoll(sslConn->ssl, WOLF_POLL_FLAG_CHECK_HW);
sslConnCtx->asyncTime += current_time(0) - start;
if (ret < 0) {
printf("ERROR: failed in async polling\n");
break;
}
if (ret == 0)
continue;
}
sslConn->err = 0;
#endif
/* Handle other SSL states. */
if (sslConnCtx->totalTime == 0)
sslConnCtx->totalTime = current_time(1);
if (SSLConn_ReadWrite(sslConnCtx, sslConn) == EXIT_FAILURE) {
if (sslConnCtx->maxConnections > 0)
sslConn->state = CLOSE;
}
}
sslConnCtx->totalTime = current_time(0) - sslConnCtx->totalTime;
SSLConn_PrintStats(sslConnCtx);
SSLConn_Free(sslConnCtx);
WolfSSLCtx_Final(ctx);
wolfSSL_Cleanup();
exit(EXIT_SUCCESS);
}
