void TLSSocket::Handshake(TCPSocket& socket, HandshakeRole role, TLSSocket* reuse)
{
SSL_CTX* ctx = role == Client ? TLSClientContext::Get() : TLSServerContext::Get();
if (!ctx) throw TLSError("TLS context not initialised.");
session = SSL_new(ctx);
if (!session) throw TLSProtocolError();
if (SSL_set_fd(session, socket.Socket()) != 1) throw TLSProtocolError();
if (reuse)
{
assert(reuse->session);
SSL_copy_session_id(session, reuse->session);
}
if (role == Client) SSL_set_connect_state(session);
else SSL_set_accept_state(session);
int result;
while (true)
{
if (role == Client) result = SSL_connect(session);
else result = SSL_accept(session);
boost::this_thread::interruption_point();
if (result == 1) break;
else EvaluateResult(result);
}
}
bool SSLSocket::setupCrypto(SSLSocket *session /* = NULL */) {
if (m_handle) {
raise_warning("SSL/TLS already set-up for this stream");
return false;
}
/* need to do slightly different things, based on client/server method,
* so lets remember which method was selected */
#if OPENSSL_VERSION_NUMBER < 0x00909000L
SSL_METHOD *smethod;
#else
const SSL_METHOD *smethod;
#endif
switch (m_method) {
case ClientSSLv23: m_client = true; smethod = SSLv23_client_method(); break;
case ClientSSLv3: m_client = true; smethod = SSLv3_client_method(); break;
case ClientTLS: m_client = true; smethod = TLSv1_client_method(); break;
case ServerSSLv23: m_client = false; smethod = SSLv23_server_method(); break;
case ServerSSLv3: m_client = false; smethod = SSLv3_server_method(); break;
/* SSLv2 protocol might be disabled in the OpenSSL library */
#ifndef OPENSSL_NO_SSL2
case ClientSSLv2: m_client = true; smethod = SSLv2_client_method(); break;
case ServerSSLv2: m_client = false; smethod = SSLv2_server_method(); break;
#else
case ClientSSLv2:
case ServerSSLv2:
raise_warning("OpenSSL library does not support SSL2 protocol");
return false;
break;
#endif
case ServerTLS: m_client = false; smethod = TLSv1_server_method(); break;
default:
return false;
}
SSL_CTX *ctx = SSL_CTX_new(smethod);
if (ctx == nullptr) {
raise_warning("failed to create an SSL context");
return false;
}
SSL_CTX_set_options(ctx, SSL_OP_ALL);
m_handle = createSSL(ctx);
if (m_handle == nullptr) {
raise_warning("failed to create an SSL handle");
SSL_CTX_free(ctx);
return false;
}
if (!SSL_set_fd(m_handle, m_fd)) {
handleError(0, true);
}
if (session) {
SSL_copy_session_id(m_handle, session->m_handle);
}
return true;
}
int BIO_ssl_copy_session_id(BIO *t, BIO *f)
{
t=BIO_find_type(t,BIO_TYPE_SSL);
f=BIO_find_type(f,BIO_TYPE_SSL);
if ((t == NULL) || (f == NULL))
return(0);
if ( (((BIO_SSL *)t->ptr)->ssl == NULL) ||
(((BIO_SSL *)f->ptr)->ssl == NULL))
return(0);
SSL_copy_session_id(((BIO_SSL *)t->ptr)->ssl,((BIO_SSL *)f->ptr)->ssl);
return(1);
}
int BIO_ssl_copy_session_id(BIO *t, BIO *f)
{
BIO_SSL *tdata, *fdata;
t = BIO_find_type(t, BIO_TYPE_SSL);
f = BIO_find_type(f, BIO_TYPE_SSL);
if ((t == NULL) || (f == NULL))
return 0;
tdata = BIO_get_data(t);
fdata = BIO_get_data(f);
if ((tdata->ssl == NULL) || (fdata->ssl == NULL))
return 0;
if (!SSL_copy_session_id(tdata->ssl, (fdata->ssl)))
return 0;
return 1;
}
static void
create_conn (Sess *sess, struct Conn_Info *ci)
{
Conn_Private_Data *cpriv;
/* No connection yet (or anymore). Create a new connection. Note
that CI->CONN is NOT reference-counted. This is again to avoid
introducing recursive dependencies (see also comment regarding
member CONN in call.h). */
ci->conn = conn_new ();
if (!ci->conn)
{
sess_failure (sess);
return;
}
cpriv = CONN_PRIVATE_DATA (ci->conn);
cpriv->sess = sess;
cpriv->ci = ci;
ci->is_connected = 0;
ci->is_successful = 0;
ci->num_sent = 0; /* (re-)send all pending calls */
#ifdef HAVE_SSL
if (param.ssl_reuse && ci->conn->ssl && sess->ssl)
{
if (DBG > 0)
fprintf (stderr, "create_conn: reusing SSL session %p\n",
(void *) sess->ssl);
SSL_copy_session_id (ci->conn->ssl, sess->ssl);
}
#endif
if (core_connect (ci->conn) < 0)
sess_failure (sess);
}
/* {{{ data_accept
*/
databuf_t*
data_accept(databuf_t *data, ftpbuf_t *ftp)
{
php_sockaddr_storage addr;
socklen_t size;
#if HAVE_OPENSSL_EXT
SSL_CTX *ctx;
zend_long ssl_ctx_options = SSL_OP_ALL;
#endif
if (data->fd != -1) {
goto data_accepted;
}
size = sizeof(addr);
data->fd = my_accept(ftp, data->listener, (struct sockaddr*) &addr, &size);
closesocket(data->listener);
data->listener = -1;
if (data->fd == -1) {
efree(data);
return NULL;
}
data_accepted:
#if HAVE_OPENSSL_EXT
/* now enable ssl if we need to */
if (ftp->use_ssl && ftp->use_ssl_for_data) {
ctx = SSL_CTX_new(SSLv23_client_method());
if (ctx == NULL) {
php_error_docref(NULL, E_WARNING, "data_accept: failed to create the SSL context");
return 0;
}
#if OPENSSL_VERSION_NUMBER >= 0x0090605fL
ssl_ctx_options &= ~SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS;
#endif
SSL_CTX_set_options(ctx, ssl_ctx_options);
data->ssl_handle = SSL_new(ctx);
if (data->ssl_handle == NULL) {
php_error_docref(NULL, E_WARNING, "data_accept: failed to create the SSL handle");
SSL_CTX_free(ctx);
return 0;
}
SSL_set_fd(data->ssl_handle, data->fd);
if (ftp->old_ssl) {
SSL_copy_session_id(data->ssl_handle, ftp->ssl_handle);
}
if (SSL_connect(data->ssl_handle) <= 0) {
php_error_docref(NULL, E_WARNING, "data_accept: SSL/TLS handshake failed");
SSL_shutdown(data->ssl_handle);
SSL_free(data->ssl_handle);
return 0;
}
data->ssl_active = 1;
}
#endif
return data;
}
/* {{{ data_accept
*/
databuf_t*
data_accept(databuf_t *data, ftpbuf_t *ftp)
{
php_sockaddr_storage addr;
socklen_t size;
#ifdef HAVE_FTP_SSL
SSL_CTX *ctx;
SSL_SESSION *session;
int err, res;
zend_bool retry;
#endif
if (data->fd != -1) {
goto data_accepted;
}
size = sizeof(addr);
data->fd = my_accept(ftp, data->listener, (struct sockaddr*) &addr, &size);
closesocket(data->listener);
data->listener = -1;
if (data->fd == -1) {
efree(data);
return NULL;
}
data_accepted:
#ifdef HAVE_FTP_SSL
/* now enable ssl if we need to */
if (ftp->use_ssl && ftp->use_ssl_for_data) {
ctx = SSL_get_SSL_CTX(ftp->ssl_handle);
if (ctx == NULL) {
php_error_docref(NULL, E_WARNING, "data_accept: failed to retreive the existing SSL context");
return 0;
}
data->ssl_handle = SSL_new(ctx);
if (data->ssl_handle == NULL) {
php_error_docref(NULL, E_WARNING, "data_accept: failed to create the SSL handle");
return 0;
}
SSL_set_fd(data->ssl_handle, data->fd);
if (ftp->old_ssl) {
SSL_copy_session_id(data->ssl_handle, ftp->ssl_handle);
}
/* get the session from the control connection so we can re-use it */
session = SSL_get_session(ftp->ssl_handle);
if (session == NULL) {
php_error_docref(NULL, E_WARNING, "data_accept: failed to retreive the existing SSL session");
SSL_free(data->ssl_handle);
return 0;
}
/* and set it on the data connection */
res = SSL_set_session(data->ssl_handle, session);
if (res == 0) {
php_error_docref(NULL, E_WARNING, "data_accept: failed to set the existing SSL session");
SSL_free(data->ssl_handle);
return 0;
}
do {
res = SSL_connect(data->ssl_handle);
err = SSL_get_error(data->ssl_handle, res);
switch (err) {
case SSL_ERROR_NONE:
retry = 0;
break;
case SSL_ERROR_ZERO_RETURN:
retry = 0;
SSL_shutdown(data->ssl_handle);
break;
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE: {
php_pollfd p;
int i;
p.fd = ftp->fd;
p.events = (err == SSL_ERROR_WANT_READ) ? (POLLIN|POLLPRI) : POLLOUT;
p.revents = 0;
i = php_poll2(&p, 1, 300);
retry = i > 0;
}
break;
default:
php_error_docref(NULL, E_WARNING, "data_accept: SSL/TLS handshake failed");
SSL_shutdown(data->ssl_handle);
SSL_free(data->ssl_handle);
return 0;
}
} while (retry);
data->ssl_active = 1;
}
#endif
return data;
}
/* {{{ data_accept
*/
databuf_t*
data_accept(databuf_t *data, ftpbuf_t *ftp)
{
php_sockaddr_storage addr;
socklen_t size;
#ifdef HAVE_FTP_SSL
SSL_CTX *ctx;
zend_long ssl_ctx_options = SSL_OP_ALL;
int err, res;
zend_bool retry;
#endif
if (data->fd != -1) {
goto data_accepted;
}
size = sizeof(addr);
data->fd = my_accept(ftp, data->listener, (struct sockaddr*) &addr, &size);
closesocket(data->listener);
data->listener = -1;
if (data->fd == -1) {
efree(data);
return NULL;
}
data_accepted:
#ifdef HAVE_FTP_SSL
/* now enable ssl if we need to */
if (ftp->use_ssl && ftp->use_ssl_for_data) {
ctx = SSL_CTX_new(SSLv23_client_method());
if (ctx == NULL) {
php_error_docref(NULL, E_WARNING, "data_accept: failed to create the SSL context");
return 0;
}
#if OPENSSL_VERSION_NUMBER >= 0x0090605fL
ssl_ctx_options &= ~SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS;
#endif
SSL_CTX_set_options(ctx, ssl_ctx_options);
data->ssl_handle = SSL_new(ctx);
if (data->ssl_handle == NULL) {
php_error_docref(NULL, E_WARNING, "data_accept: failed to create the SSL handle");
SSL_CTX_free(ctx);
return 0;
}
SSL_set_fd(data->ssl_handle, data->fd);
if (ftp->old_ssl) {
SSL_copy_session_id(data->ssl_handle, ftp->ssl_handle);
}
do {
res = SSL_connect(data->ssl_handle);
err = SSL_get_error(data->ssl_handle, res);
switch (err) {
case SSL_ERROR_NONE:
retry = 0;
break;
case SSL_ERROR_ZERO_RETURN:
retry = 0;
SSL_shutdown(data->ssl_handle);
break;
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE: {
php_pollfd p;
int i;
p.fd = ftp->fd;
p.events = (err == SSL_ERROR_WANT_READ) ? (POLLIN|POLLPRI) : POLLOUT;
p.revents = 0;
i = php_poll2(&p, 1, 300);
retry = i > 0;
}
break;
default:
php_error_docref(NULL, E_WARNING, "data_accept: SSL/TLS handshake failed");
SSL_shutdown(data->ssl_handle);
SSL_free(data->ssl_handle);
return 0;
}
} while (retry);
data->ssl_active = 1;
}
#endif
return data;
}