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121 lines
3.6 KiB
C++
121 lines
3.6 KiB
C++
/*
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* Copyright 2013-2019 Software Radio Systems Limited
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*
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* This file is part of srsLTE.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#ifndef SRSUE_TTCN3_IP_SOCK_INTERFACE_H
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#define SRSUE_TTCN3_IP_SOCK_INTERFACE_H
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#include "ttcn3_port_handler.h"
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// The IP Socket interface to the IP_PTC
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class ttcn3_ip_sock_interface : public ttcn3_port_handler
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{
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public:
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ttcn3_ip_sock_interface() = default;
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~ttcn3_ip_sock_interface() = default;
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int init(srslte::log* log_, std::string net_ip_, uint32_t net_port_)
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{
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net_ip = net_ip_;
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net_port = net_port_;
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log = log_;
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initialized = true;
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log->debug("Initialized.\n");
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return port_listen();
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}
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private:
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///< Main message handler
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int handle_message(const unique_byte_array_t& rx_buf, const uint32_t n)
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{
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log->debug("Received %d B from remote.\n", n);
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Document document;
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if (document.Parse((char*)rx_buf->begin()).HasParseError() || document.IsObject() == false) {
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log->error_hex(rx_buf->begin(), n, "Error parsing incoming data.\n");
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return SRSLTE_ERROR;
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}
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// Pretty-print
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StringBuffer buffer;
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PrettyWriter<StringBuffer> writer(buffer);
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document.Accept(writer);
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log->info("Received %d bytes\n%s\n", n, (char*)buffer.GetString());
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// Get message
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if (document.HasMember("CTRL")) {
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log->info("Received CTRL command.\n");
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handle_ctrl(document);
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} else {
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log->error("Received unknown request.\n");
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}
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return SRSLTE_SUCCESS;
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}
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void handle_ctrl(Document& document)
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{
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// get CTRL
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const Value& ctrl = document["CTRL"];
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assert(ctrl.HasMember("ConnectionId"));
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const Value& conn_id = ctrl["ConnectionId"];
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assert(conn_id.HasMember("Protocol"));
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const Value& protocol = conn_id["Protocol"];
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assert(protocol.IsString());
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// Get IP version and addr
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std::string ip_version;
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const Value& local = conn_id["Local"];
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assert(local.HasMember("IpAddr"));
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const Value& ipAddr = local["IpAddr"];
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if (ipAddr.HasMember("V4")) {
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ip_version = "V4";
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} else if (ipAddr.HasMember("V6")) {
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ip_version = "V6";
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}
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assert(ipAddr[ip_version.c_str()].HasMember("Addr"));
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const Value& addr = ipAddr[ip_version.c_str()]["Addr"];
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string resp = "";
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// TODO: Handle command
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if (ctrl.HasMember("Req")) {
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const Value& req = ctrl["Req"];
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// Don't send a ctrl cnf for UDP or ICMP Close
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if (!(req.HasMember("UDP") && req["UDP"].HasMember("Close") && req["UDP"]["Close"].GetBool()) &&
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!(req.HasMember("ICMP") && req["ICMP"].HasMember("Close") && req["ICMP"]["Close"].GetBool())) {
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resp = ttcn3_helpers::get_ctrl_cnf(protocol.GetString(), ip_version, addr.GetString());
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}
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} else {
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assert(false);
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}
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// Send response
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if (resp.length() > 0) {
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log->info("Sending %s to tester (%zd B)\n", resp.c_str(), resp.length());
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send((const uint8_t*)resp.c_str(), resp.length());
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}
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}
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};
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#endif // SRSUE_TTCN3_IP_SOCK_INTERFACE_H
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