Exemplo n.º 1
0
void send_debug_packet_response(nabto_packet_header* header, uint32_t notification) 
{
    uint8_t* buf = nabtoCommunicationBuffer;
    uint8_t* ptr = nabtoCommunicationBuffer;
    uint8_t* end = nabtoCommunicationBuffer+nabtoCommunicationBufferSize;
    
    ptr = insert_header(ptr, header->nsi_cp, header->nsi_sp, U_DEBUG, true, header->seq, 0, NULL);
    
    if (ptr == NULL) {
        NABTO_LOG_ERROR(("Could not insert debug packet header"));
        return;
    }

    ptr = insert_notify_payload(ptr, end, NP_PAYLOAD_NOTIFY_DEBUG_OK);
    if (ptr == NULL) {
        NABTO_LOG_ERROR(("Could not insert notify payload"));
        return;
    }

    {
        uint16_t length = ptr - buf;
        insert_length(buf, length);
        send_to_basestation(buf, length, &nmc.context.gsp);
    }

}
void send_connection_statistics(nabto_connect* con, uint8_t event) {
    size_t length;
    uint8_t* ptr = insert_header(nabtoCommunicationBuffer, 0, con->spnsi, NP_PACKET_HDR_TYPE_STATS, false, 0, 0, 0);
    uint8_t* end = nabtoCommunicationBuffer + nabtoCommunicationBufferSize;
    
    ptr = insert_stats_payload(ptr, end, event);
    if (ptr == NULL) {
        return;
    }
    ptr = insert_version_payload(ptr, end);
    if (ptr == NULL) {
        return;
    }

#if NABTO_ENABLE_CLIENT_ID
    ptr = insert_cp_id_payload(ptr, end, con);
    if (ptr == NULL) {
        return;
    }
#endif

    ptr = insert_sp_id_payload(ptr, end);
    if (ptr == NULL) {
        return;
    }

    ptr = insert_ipx_payload(ptr, end);
    if (ptr == NULL) {
        return;
    }
    ptr = insert_connect_stats_payload(ptr, end, con);
    if (ptr == NULL) {
        return;
    }

    if (!con->noRendezvous) {
        ptr = insert_rendezvous_stats_payload(ptr, end, con);
        if (ptr == NULL) {
            return;
        }
    }

    ptr = insert_connection_stats_payload(ptr, end, con);
    if (ptr == NULL) {
        return;
    }

    length = ptr - nabtoCommunicationBuffer;
    insert_length(nabtoCommunicationBuffer, length);
    send_to_basestation(nabtoCommunicationBuffer, length, &nmc.context.gsp);
}
bool connect_event(message_event* event, nabto_packet_header* hdr)
{
    nabto_endpoint* peer = &event->udpMessage.peer;
    bool isLocal = (event->udpMessage.socket == nmc.socketLocal);
    

    NABTO_LOG_TRACE(("U_CONNECT: Searching for hdr->nsi_cp=%" PRIu32 " (should not be found)", hdr->nsi_cp));
    if (nabto_find_connection(hdr->nsi_cp) == NULL) {
        uint32_t nsi;
        uint32_t ec = 0;
        nabto_connect* con = nabto_init_connection(hdr, &nsi, &ec, isLocal);
        if (con) {
            size_t olen;
            NABTO_LOG_TRACE(("Couldn't find connection (good!). Created a new connection (nsi=%" PRIu32 ") con->spnsi=%" PRIu32, nsi, con->spnsi));
            olen = mk_gsp_connect_rsp(nabtoCommunicationBuffer, hdr->seq, NOTIFY_CONNECT_OK, con->spnsi, hdr->nsi_cp, hdr->nsi_sp, isLocal);
            
            if (olen == 0) {
                NABTO_LOG_ERROR(("U_CONNECT out of resources in connect event."));
                nabto_release_connection(con); // no resources available
            } else {
                if (EP_EQUAL(*peer, nmc.context.gsp)) {
                    send_to_basestation(nabtoCommunicationBuffer, olen, peer);
                } else {
                    nabto_write(event->udpMessage.socket, nabtoCommunicationBuffer, olen, peer->addr, peer->port);
                }
                
                con->state = CS_CONNECTING;

                if (!con->noRendezvous) {
                    nabto_rendezvous_start(con);
                }
#if NABTO_ENABLE_TCP_FALLBACK
                if (con->hasTcpFallbackCapabilities) {
                    unabto_tcp_fallback_connect(con);
                }
#endif
                return true;
            }
        } else if (nsi && ec) {
            // build negative answer
            size_t olen = mk_gsp_connect_rsp(nabtoCommunicationBuffer, hdr->seq, ec, nsi, hdr->nsi_cp, hdr->nsi_sp, isLocal);
            NABTO_LOG_TRACE((PRInsi " Deny connection, result: %" PRIu32, MAKE_NSI_PRINTABLE(0, nsi, 0), ec));
            nabto_write(event->udpMessage.socket, nabtoCommunicationBuffer, olen, peer->addr, peer->port);
            return true;
        } else {
            NABTO_LOG_ERROR(("U_CONNECT was a malformed connect event."));
        }
    }
    return false;
}
void send_connection_ended_statistics(nabto_connect* con) {
    size_t length;
    uint8_t* ptr = insert_header(nabtoCommunicationBuffer, 0, con->spnsi, NP_PACKET_HDR_TYPE_STATS, false, 0, 0, 0);
    uint8_t* end = nabtoCommunicationBuffer + nabtoCommunicationBufferSize;

    ptr = insert_stats_payload(ptr, end, NP_PAYLOAD_STATS_TYPE_UNABTO_CONNECTION_ENDED);
    if (ptr == NULL) {
        return;
    }

    ptr = insert_version_payload(ptr, end);
    if (ptr == NULL) {
        return;
    }

#if NABTO_ENABLE_CLIENT_ID
    ptr = insert_cp_id_payload(ptr, end, con);
    if (ptr == NULL) {
        return;
    }
#endif

    ptr = insert_sp_id_payload(ptr, end);
    if (ptr == NULL) {
        return;
    }
    ptr = insert_connection_stats_payload(ptr, end, con);
    if (ptr == NULL) {
        return;
    }

    length = ptr - nabtoCommunicationBuffer;
    insert_length(nabtoCommunicationBuffer, length);
    
    send_to_basestation(nabtoCommunicationBuffer, length, &nmc.context.gsp);
}