void rendezvous_time_event(nabto_connect* con)
{
nabto_rendezvous_connect_state* rcs = &con->rendezvousConnectState;
if (rcs->state == RS_CONNECTING) {
if (nabtoIsStampPassed(&rcs->timestamp))
{
send_rendezvous_to_all(con);
}
#if NABTO_ENABLE_EXTENDED_RENDEZVOUS_MULTIPLE_SOCKETS
if (rcs->openManySockets &&
nabtoIsStampPassed(&rcs->openManySocketsStamp))
{
if (rcs->socketsOpened < NABTO_EXTENDED_RENDEZVOUS_MAX_SOCKETS) {
nabto_socket_t* candidate = &rcs->sockets[rcs->socketsOpened];
uint16_t localport = 0;
if(nabto_init_socket(0,&localport, candidate)) {
rcs->socketsOpened++;
send_rendezvous_socket(*candidate, con, 0, &con->cp.globalEndpoint, 0);
} else {
NABTO_LOG_ERROR(("Could not open socket."));
}
nabtoSetFutureStamp(&con->rendezvousConnectState.openManySocketsStamp, 20);
} else {
rcs->openManySockets = false;
}
}
#endif
if (rcs->openManyPorts &&
nabtoIsStampPassed(&rcs->openManyPortsStamp))
{
int i;
for (i = 0; i < 10; i++) {
nabto_endpoint newEp;
uint16_t newPort;
nabto_random((uint8_t*)&newPort, sizeof(uint16_t));
newEp.addr = con->cp.globalEndpoint.addr;
newEp.port = 1024+(newPort%64500);
send_rendezvous(con, 0, &newEp, 0);
rcs->portsOpened++;
}
nabtoSetFutureStamp(&rcs->openManyPortsStamp, 50);
}
if(nabtoIsStampPassed(&rcs->timeout)) {
#if NABTO_ENABLE_EXTENDED_RENDEZVOUS_MULTIPLE_SOCKETS
NABTO_LOG_INFO(("Rendezvous timeout. Sockets opened %i", rcs->socketsOpened));
#endif
nabto_rendezvous_stop(con);
}
}
}
void rendezvous_time_event(nabto_connect* con)
{
nabto_rendezvous_connect_state* rcs = &con->rendezvousConnectState;
if (rcs->state == RS_CONNECTING) {
if (nabtoIsStampPassed(&rcs->timestamp))
{
send_rendezvous_to_all(con);
}
#if NABTO_ENABLE_EXTENDED_RENDEZVOUS_MULTIPLE_SOCKETS
if (rcs->openManySockets &&
nabtoIsStampPassed(&rcs->openManySocketsStamp))
{
if (rcs->socketsOpened < NABTO_EXTENDED_RENDEZVOUS_MAX_SOCKETS) {
nabto_socket_t* candidate = &extended_rendezvous_sockets[rcs->socketsOpened];
send_rendezvous_socket(*candidate, con, 0, &con->cp.globalEndpoint, 0);
rcs->socketsOpened++;
unabto_connection_set_future_stamp(&con->rendezvousConnectState.openManySocketsStamp, 20);
} else {
rcs->openManySockets = false;
}
}
#endif
if (rcs->openManyPorts &&
nabtoIsStampPassed(&rcs->openManyPortsStamp))
{
int i;
for (i = 0; i < 10; i++) {
nabto_endpoint newEp;
uint16_t newPort = unabto_extended_rendezvous_next_port(&rcs->portSequence, rcs->portsOpened);
newEp.addr = con->cp.globalEndpoint.addr;
newEp.port = newPort;
send_rendezvous(con, 0, &newEp, 0);
rcs->portsOpened++;
}
unabto_connection_set_future_stamp(&rcs->openManyPortsStamp, 50);
}
if(nabtoIsStampPassed(&rcs->timeout)) {
#if NABTO_ENABLE_EXTENDED_RENDEZVOUS_MULTIPLE_SOCKETS
NABTO_LOG_INFO(("Rendezvous timeout. Sockets opened %i", rcs->socketsOpened));
#endif
nabto_rendezvous_stop(con);
}
}
}
bool rendezvous_event(message_event* event, nabto_packet_header* hdr)
{
uint8_t* end = nabtoCommunicationBuffer + hdr->len;
uint16_t res = hdr->hlen;
uint8_t* ptr;
uint8_t type;
nabto_endpoint epUD;
nabto_connect* con = 0;
nabto_endpoint src;
uint32_t interval = 5000;
src = event->udpMessage.peer;
NABTO_LOG_TRACE((PRInsi " Received from " PRIep " seq=%" PRIu16, MAKE_NSI_PRINTABLE(0, hdr->nsi_sp, 0), MAKE_EP_PRINTABLE(src), hdr->seq));
ptr = nabtoCommunicationBuffer + res;
res = nabto_rd_payload(ptr, end, &type); ptr += SIZE_PAYLOAD_HEADER;
if (res != 6 || type != NP_PAYLOAD_TYPE_EP) {
NABTO_LOG_TRACE(("Can't read first EP"));
return false;
}
READ_U32(epUD.addr, ptr); ptr += 4;
READ_U16(epUD.port, ptr); ptr += 2;
res = nabto_rd_payload(ptr, end, &type); ptr += SIZE_PAYLOAD_HEADER;
if (res == 6 && type == NP_PAYLOAD_TYPE_EP) {
// The second EP is not neccessary since we read the destination ep from the udp packet.
ptr += 6;
res = nabto_rd_payload(ptr, end, &type); ptr += SIZE_PAYLOAD_HEADER;
if (res == 4 && type == NP_PAYLOAD_TYPE_NONCE) {
READ_U32(interval, ptr);
NABTO_LOG_TRACE((PRInsi " Read interval from packet: %" PRIu32, MAKE_NSI_PRINTABLE(0, hdr->nsi_sp, 0), interval));
if (interval == 0) {
NABTO_LOG_WARN(("Interval was 0, setting to 5000"));
interval = 5000;
}
}
}
con = nabto_find_connection(hdr->nsi_sp);
if (!con) {
NABTO_LOG_ERROR(("Connection was not found, nsi: %i", hdr->nsi_sp));
} else {
if (hdr->seq == 0) {
send_rendezvous_socket(event->udpMessage.socket, con, 1, &src, &epUD);
} else if (hdr->seq == 1) {
send_rendezvous_socket(event->udpMessage.socket, con, 2, &src, &epUD);
if (!conclude_connection(con, &src, interval)) {
return false;
}
} else if (hdr->seq == 2) {
if (!conclude_connection(con, &src, interval)) {
return false;
}
} else {
NABTO_LOG_ERROR(("Invalid Sequence Number"));
}
}
return false;
}
static void send_rendezvous(nabto_connect* con, uint16_t seq, nabto_endpoint* dest, nabto_endpoint *myAddress) {
send_rendezvous_socket(nmc.socketGSP, con, seq, dest, myAddress);
}
