bool StunClient::channelBind(QString peer_addr)
{
qDebug()<<peer_addr;
m_peer_addr = peer_addr;
Q_ASSERT(!m_realm.isEmpty());
Q_ASSERT(!m_nonce.isEmpty());
stun_buffer buf;
ioa_addr t_peer_addr;
make_ioa_addr_from_full_string((u08bits*)peer_addr.toLatin1().data(), 0, &t_peer_addr);
stun_set_channel_bind_request(&buf, &t_peer_addr, channel_no);
stun_attr_add(&buf, STUN_ATTRIBUTE_USERNAME, STUN_USERNAME, strlen(STUN_USERNAME));
stun_attr_add(&buf, STUN_ATTRIBUTE_REALM, m_realm.data(), m_realm.length());
stun_attr_add(&buf, STUN_ATTRIBUTE_NONCE, m_nonce.data(), m_nonce.length());
stun_attr_add_integrity_by_user_str(buf.buf, &buf.len, (u08bits*)STUN_USERNAME,
(u08bits*)m_realm.data(), (u08bits*)STUN_PASSWORD,
(u08bits*)m_nonce.data(), SHATYPE_SHA1);
qint64 ret = m_stun_sock->writeDatagram(QByteArray((char*)buf.buf, buf.len), QHostAddress(STUN_SERVER_ADDR), STUN_SERVER_PORT);
// m_stun_sock->waitForBytesWritten();
{
m_sending_udp = true;
m_sending_data = QByteArray((char*)buf.buf, buf.len);
m_sending_addr = QString("%1:%2").arg(STUN_SERVER_ADDR).arg(STUN_SERVER_PORT);
m_sending_timer->start();
}
qDebug()<<"write:"<<ret<<peer_addr;
return true;
}
static int turn_channel_bind(int verbose, uint16_t *chn,
app_ur_conn_info *clnet_info, ioa_addr *peer_addr) {
stun_buffer request_message, response_message;
beg_bind:
{
int cb_sent = 0;
if(negative_test) {
*chn = stun_set_channel_bind_request(&request_message, peer_addr, (u16bits)random());
} else {
*chn = stun_set_channel_bind_request(&request_message, peer_addr, *chn);
}
add_origin(&request_message);
if(add_integrity(clnet_info, &request_message)<0) return -1;
stun_attr_add_fingerprint_str(request_message.buf,(size_t*)&(request_message.len));
while (!cb_sent) {
int len = send_buffer(clnet_info, &request_message, 0,0);
if (len > 0) {
if (verbose) {
TURN_LOG_FUNC(TURN_LOG_LEVEL_INFO, "channel bind sent\n");
}
cb_sent = 1;
} else {
perror("send");
exit(1);
}
}
}
////////////<<==channel bind send
if(not_rare_event()) return 0;
////////channel bind response==>>
{
int cb_received = 0;
while (!cb_received) {
int len = recv_buffer(clnet_info, &response_message, 1, 0, NULL, &request_message);
if (len > 0) {
if (verbose) {
TURN_LOG_FUNC(TURN_LOG_LEVEL_INFO,
"cb response received: \n");
}
int err_code = 0;
u08bits err_msg[129];
if (stun_is_success_response(&response_message)) {
cb_received = 1;
if(clnet_info->nonce[0]) {
if(check_integrity(clnet_info, &response_message)<0)
return -1;
}
if (verbose) {
TURN_LOG_FUNC(TURN_LOG_LEVEL_INFO, "success: 0x%x\n",
(int) (*chn));
}
} else if (stun_is_challenge_response_str(response_message.buf, (size_t)response_message.len,
&err_code,err_msg,sizeof(err_msg),
clnet_info->realm,clnet_info->nonce,
clnet_info->server_name, &(clnet_info->oauth))) {
goto beg_bind;
} else if (stun_is_error_response(&response_message, &err_code,err_msg,sizeof(err_msg))) {
cb_received = 1;
TURN_LOG_FUNC(TURN_LOG_LEVEL_INFO, "channel bind: error %d (%s)\n",
err_code,(char*)err_msg);
return -1;
} else {
TURN_LOG_FUNC(TURN_LOG_LEVEL_INFO, "unknown channel bind response\n");
/* Try again ? */
}
} else {
perror("recv");
exit(-1);
break;
}
}
}
return 0;
}
