static void openssl_poll(ErDtlsConnection *self)
{
int ret;
char buf[512];
int error;
log_state(self, "poll: before handshake");
ret = SSL_do_handshake(self->priv->ssl);
log_state(self, "poll: after handshake");
if (ret == 1) {
if (!self->priv->keys_exported) {
LOG_INFO(self, "handshake just completed successfully, exporting keys");
export_srtp_keys(self);
} else {
LOG_INFO(self, "handshake is completed");
}
return;
} else {
if (ret == 0) {
LOG_DEBUG(self, "do_handshake encountered EOF");
} else if (ret == -1) {
LOG_WARNING(self, "do_handshake encountered BIO error");
} else {
LOG_DEBUG(self, "do_handshake returned %d", ret);
}
}
error = SSL_get_error(self->priv->ssl, ret);
switch (error) {
case SSL_ERROR_NONE:
LOG_WARNING(self, "no error, handshake should be done");
break;
case SSL_ERROR_SSL:
LOG_LOG(self, "SSL error %d: %s", error, ERR_error_string(ERR_get_error(), buf));
break;
case SSL_ERROR_WANT_READ:
LOG_LOG(self, "SSL wants read");
break;
case SSL_ERROR_WANT_WRITE:
LOG_LOG(self, "SSL wants write");
break;
case SSL_ERROR_SYSCALL: {
LOG_LOG(self, "SSL syscall (error) : %lu", ERR_get_error());
break;
}
default:
LOG_WARNING(self, "Unknown SSL error: %d, ret: %d", error, ret);
}
}
static void
openssl_poll (GstDtlsConnection * self)
{
int ret;
int error;
log_state (self, "poll: before handshake");
ERR_clear_error ();
ret = SSL_do_handshake (self->priv->ssl);
log_state (self, "poll: after handshake");
switch (ret) {
case 1:
if (!self->priv->keys_exported) {
GST_INFO_OBJECT (self,
"handshake just completed successfully, exporting keys");
export_srtp_keys (self);
} else {
GST_INFO_OBJECT (self, "handshake is completed");
}
return;
case 0:
GST_DEBUG_OBJECT (self, "do_handshake encountered EOF");
break;
case -1:
GST_DEBUG_OBJECT (self, "do_handshake encountered BIO error");
break;
default:
GST_DEBUG_OBJECT (self, "do_handshake returned %d", ret);
}
error = SSL_get_error (self->priv->ssl, ret);
switch (error) {
case SSL_ERROR_NONE:
GST_WARNING_OBJECT (self, "no error, handshake should be done");
break;
case SSL_ERROR_SSL:
GST_ERROR_OBJECT (self, "SSL error");
ERR_print_errors_cb (ssl_err_cb, self);
return;
case SSL_ERROR_WANT_READ:
GST_LOG_OBJECT (self, "SSL wants read");
break;
case SSL_ERROR_WANT_WRITE:
GST_LOG_OBJECT (self, "SSL wants write");
break;
case SSL_ERROR_SYSCALL:{
gchar message[1024] = "<unknown>";
gint syserror;
#ifdef G_OS_WIN32
syserror = WSAGetLastError ();
FormatMessage (FORMAT_MESSAGE_FROM_SYSTEM, NULL, syserror, 0, message,
sizeof message, NULL);
#else
syserror = errno;
strerror_r (syserror, message, sizeof message);
#endif
GST_CAT_LEVEL_LOG (GST_CAT_DEFAULT,
syserror != 0 ? GST_LEVEL_WARNING : GST_LEVEL_LOG,
self, "SSL syscall error: errno %d: %s", syserror, message);
break;
}
default:
GST_WARNING_OBJECT (self, "Unknown SSL error: %d, ret: %d", error, ret);
}
ERR_print_errors_cb (ssl_warn_cb, self);
}
