Add Commsignia support for RX

#include <arpa/inet.h>

#include "CommsigniaLayerFactory.hh"

#include "loggers.hh"

CommsigniaLayer::CommsigniaLayer(const std::string & p_type, const std::string & param) : Layer(p_type), _params() {

CommsigniaLayer::CommsigniaLayer(const std::string & p_type, const std::string & param) : Layer(p_type), _params(), _c2p_recv{0}, _802_11p_hdr{0}, _c2p_llc_hdr{0} {

  loggers::get_instance().log(">>> CommsigniaLayer::CommsigniaLayer: %s, %s", to_string().c_str(), param.c_str());

  // Setup parameters

  Params::convert(_params, param);

  Params::const_iterator it = _params.find("mac_bc");

  if (it == _params.cend()) {

    _params.insert(std::pair<std::string, std::string>(std::string("mac_bc"), "FFFFFFFFFFFF"));

  }

  it = _params.find(Params::eth_type);

  if (it == _params.cend()) {

    _params.insert(std::pair<std::string, std::string>(std::string("eth_type"), "8947"));

  }

  //_params.log();

}

void CommsigniaLayer::receiveData(OCTETSTRING& data, Params& params) {

  loggers::get_instance().log_msg(">>> CommsigniaLayer::receiveData: ", data);

  const unsigned char* p = static_cast<const unsigned char *>(data);

  const CommsigniaLayer::c2p_recv* r = (const CommsigniaLayer::c2p_recv*)p;

  //loggers::get_instance().log("CommsigniaLayer::receiveData: version=%02x", r->version);

  //loggers::get_instance().log("CommsigniaLayer::receiveData: timestamp1=%08x", ntohl(r->timestamp_sec));

  //loggers::get_instance().log("CommsigniaLayer::receiveData: timestamp2=%08x", ntohl(r->timestamp_msec));

  //loggers::get_instance().log("CommsigniaLayer::receiveData: rssi_ant1=%02x", r->rssi_ant1);

  //loggers::get_instance().log("CommsigniaLayer::receiveData: rssi_ant2=%02x", r->rssi_ant2);

  //loggers::get_instance().log("CommsigniaLayer::receiveData: noise_ant1=%02x", r->noise_ant1);

  //loggers::get_instance().log("CommsigniaLayer::receiveData: noise_ant2=%02x", r->noise_ant2);

  const CommsigniaLayer::c2p_802_11p_hdr* h = (const CommsigniaLayer::c2p_802_11p_hdr*)(p + sizeof(CommsigniaLayer::c2p_recv));

  loggers::get_instance().log("CommsigniaLayer::receiveData: frame_ctrl=%04x", h->frame_ctrl);

  OCTETSTRING dst = OCTETSTRING(6, (const unsigned char*)&h->dst_addr);

  //loggers::get_instance().log_msg("CommsigniaLayer::receiveData: dst: ", dst);

  OCTETSTRING src = OCTETSTRING(6, (const unsigned char*)&h->src_addr);

  //loggers::get_instance().log_msg("CommsigniaLayer::receiveData: src: ", src);

  const CommsigniaLayer::c2p_llc_hdr* l = (const CommsigniaLayer::c2p_llc_hdr*)(p + sizeof(CommsigniaLayer::c2p_recv) + sizeof(CommsigniaLayer::c2p_802_11p_hdr));

  //loggers::get_instance().log("CommsigniaLayer::receiveData: dsap=%02x", l->dsap);

  //loggers::get_instance().log("CommsigniaLayer::receiveData: ssap=%02x", l->ssap);

  //loggers::get_instance().log("CommsigniaLayer::receiveData: type=%04x", ntohs(l->type));

  // Check ether type

  OCTETSTRING et = str2oct(_params[Params::eth_type].c_str());

  loggers::get_instance().log_msg("CommsigniaLayer::receiveData: ether type convert: ", et);

  if ((et[0].get_octet() == (unsigned char)((l->type & 0xff00) >> 8)) && (et[1].get_octet() == (unsigned char)(l->type & 0xff))) { // Warning: Network ordered bytes

    // Extract payload

    int length = sizeof(CommsigniaLayer::c2p_recv) + sizeof(CommsigniaLayer::c2p_802_11p_hdr) + sizeof(CommsigniaLayer::c2p_llc_hdr);

    data = OCTETSTRING(data.lengthof() - length, length + static_cast<const unsigned char *>(data));

    loggers::get_instance().log_msg("CommsigniaLayer::receiveData: payload for upper layer:", data);

    // Update params

    CHARSTRING s = oct2str(dst);

    params[Params::mac_dst] = std::string(static_cast<const char *>(s));

    s = oct2str(src);

    params[Params::mac_src] = std::string(static_cast<const char *>(s));

    receiveToAllLayers(data, params);

  } // else, nothing to do

}

CommsigniaLayerFactory CommsigniaLayerFactory::_f;

#include "Params.hh"

class CommsigniaLayer : public Layer {

  static constexpr unsigned char LL_ADDR_LENGTH = 6;

  static constexpr unsigned char LL_ORG_CODE_LENGTH = 3;

  typedef struct {

    unsigned char version;

    unsigned int timestamp_sec;

    unsigned int timestamp_msec;

    unsigned char primary_channel;

    unsigned char secondary_channel;

    unsigned char used_iface;

    unsigned char data_rate;

    unsigned char antenna;

    unsigned int latitude;

    unsigned int longitude;

    unsigned short speed;

    unsigned short heading;

    unsigned char rssi_ant1;

    unsigned char rssi_ant2;

    unsigned char noise_ant1;

    unsigned char noise_ant2;

    unsigned short cbr_ant1;

    unsigned short cbr_ant2;

  } __attribute__((__packed__)) c2p_recv;

  typedef struct {

    unsigned short frame_ctrl;

    unsigned short duration;

    unsigned char dst_addr[CommsigniaLayer::LL_ADDR_LENGTH];

    unsigned char src_addr[CommsigniaLayer::LL_ADDR_LENGTH];

    unsigned char bss_id[CommsigniaLayer::LL_ADDR_LENGTH];

    unsigned short fragment_seq_num;

    unsigned short qos_ctrl;

  } __attribute__((__packed__)) c2p_802_11p_hdr;

  typedef struct {

    unsigned char dsap;

    unsigned char ssap;

    unsigned char ctrl;

    unsigned char org_code[CommsigniaLayer::LL_ORG_CODE_LENGTH];

    unsigned short type;

  } __attribute__((__packed__)) c2p_llc_hdr;

  Params _params;

  c2p_recv _c2p_recv;

  c2p_802_11p_hdr _802_11p_hdr;

  c2p_llc_hdr _c2p_llc_hdr;

public:

  CommsigniaLayer(const std::string & p_type, const std::string & param);

  virtual ~CommsigniaLayer() {};

  virtual void sendData(OCTETSTRING& data, Params& params);

  virtual void receiveData(OCTETSTRING& data, Params& info);

};

}; // End of class CommsigniaLayer

  const unsigned char* buffer = static_cast<const unsigned char *>(data);

  _iphdr = (struct iphdr*)buffer;

  _udphdr = (struct udphdr*)(buffer + sizeof(struct iphdr));

  loggers::get_instance().log("UdpLayer::receiveData: src_port = %d, payload length = %d", ntohs(_udphdr->source), ntohs(_udphdr->len) - sizeof(struct udphdr));

  loggers::get_instance().log("UdpLayer::receiveData: src_port = %d, payload length = %d", ntohs(_udphdr->source), ntohs(_udphdr->len));

  // TODO To be refined

  data = OCTETSTRING(ntohs(_udphdr->len) - sizeof(struct udphdr), (unsigned char*)(buffer + sizeof(struct iphdr) + sizeof(struct udphdr)));

  loggers::get_instance().log_msg("UdpLayer::receiveData: message payload", data);

#ifndef UDP_FINAL_LAYER_H

#define UDP_FINAL_LAYER_H

#ifndef UDP_LAYER_H

#define UDP_LAYER_H

#include <arpa/inet.h>

#include <linux/ip.h>