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#include "EthernetLayer.hh"
#include "loggers.hh"
EthernetLayer::EthernetLayer(const std::string & p_type, const std::string & param) : Layer(p_type), _params() {
loggers::get_instance().log(">>> EthernetLayer::EthernetLayer: %s, %s", to_string().c_str(), param.c_str());
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"));
}
void EthernetLayer::sendData(OCTETSTRING& data, Params& params) {
loggers::get_instance().log_msg(">>> EthernetLayer::sendData: ", data);
// Destination MAC address
Params::const_iterator it = params.find(Params::mac_dst); // Find in provided parameters, params
it = _params.find(Params::mac_dst); // Find in layer parameters, _params
if (it != _params.cend()) {
eth = str2oct(CHARSTRING(it->second.c_str()));
} else {
eth = str2oct(CHARSTRING(_params[Params::mac_bc].c_str()));
// Source MAC address
it = params.find(Params::mac_src); // Find in provided parameters, params
if (it != params.cend()) {
it = _params.find(Params::mac_src); // Find in layer parameters, _params
if (it != _params.cend()) {
eth += str2oct(CHARSTRING(it->second.c_str()));
} else {
const unsigned char null_mac[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
eth += OCTETSTRING(sizeof(null_mac), static_cast<const unsigned char *>(null_mac));
}
it = _params.find(Params::eth_type); // Find in layer parameters
if (it != params.cend()) {
eth += str2oct(CHARSTRING(it->second.c_str()));
} else {
const unsigned char proto[] = { 0x89, 0x47 };
eth += OCTETSTRING(sizeof(proto), static_cast<const unsigned char *>(proto));
}
void EthernetLayer::receiveData(OCTETSTRING& data, Params& params) {
loggers::get_instance().log_msg(">>> EthernetLayer::receiveData: ", data);
// Extract dest MAC Address
OCTETSTRING dst = OCTETSTRING(6, static_cast<const unsigned char *>(data));
//loggers::get_instance().log_msg("EthernetLayer::receiveData: dst: ", dst);
// Extract source MAC Address
OCTETSTRING src = OCTETSTRING(6, 6 + static_cast<const unsigned char *>(data));
//loggers::get_instance().log_msg("EthernetLayer::receiveData: src: ", src);
// Extract ethertype
OCTETSTRING proto = OCTETSTRING(2, 2 + static_cast<const unsigned char *>(data));
//loggers::get_instance().log_msg("EthernetLayer::receiveData: proto: ", proto);
data = OCTETSTRING(data.lengthof() - 14, 14 + static_cast<const unsigned char *>(data));
// Update params
CHARSTRING s = oct2str(dst);
params.insert(std::pair<std::string, std::string>(Params::mac_dst, std::string(static_cast<const char *>(s))));
params.insert(std::pair<std::string, std::string>(Params::mac_src, std::string(static_cast<const char *>(s))));
//loggers::get_instance().log_msg("EthernetLayer::receiveData: payload for upper layer:", data);
}
class EthernetFactory: public LayerFactory {
EthernetFactory();
virtual Layer * createLayer(const std::string & type,
const std::string & param);
};
EthernetFactory::EthernetFactory() {
loggers::get_instance().log(">>> EthernetFactory::EthernetFactory");
}
Layer * EthernetFactory::createLayer(const std::string & type, const std::string & param) {
}
EthernetFactory EthernetFactory::_f;