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#include <thread>
#include <chrono>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "GeoNetworkingTypes.hh"
#include "GeoNetworkingLayerFactory.hh"
#include "registration.hh"
#include "loggers.hh"
using namespace LibItsGeoNetworking__TypesAndValues;
GeoNetworkingLayer::GeoNetworkingLayer(const std::string & p_type, const std::string & param) : TLayer<LibItsGeoNetworking__TestSystem::GeoNetworkingPort>(p_type), _params(), _codec(), _beacon(nullptr), _gbc_packet(nullptr), _shb_packet(nullptr), _tsb_packet(nullptr), _ls_reply(nullptr), _location_table(), _pass_beacon_table(), _device_mode{false}, _secured_mode{false}, _encrypted_mode{false}, _enable_security_checks{false}, _sendData(), _timerid{0}, _sev{0}, _its{0}, _freq_nanosecs(0), _mask{0}, _sa{0}, _sequence_number{0}, _latitude{0}, _longitude{0} {
loggers::get_instance().log(">>> GeoNetworkingLayer::GeoNetworkingLayer: %s, %s", to_string().c_str(), param.c_str());
// Setup parameters
Params::convert(_params, param);
// Sanity checks
Params::const_iterator it = _params.find(Params::latitude);
if (it != _params.cend()) {
_latitude = converter::get_instance().string_to_int(it->second);
}
it = _params.find(Params::longitude);
if (it != _params.cend()) {
_longitude = converter::get_instance().string_to_int(it->second);
}
OCTETSTRING ll_address;
it = _params.find(Params::ll_address);
if (it != _params.cend()) {
ll_address = str2oct(CHARSTRING(it->second.c_str()));
}
INTEGER distanceA = 1000; // 1km
it = _params.find(Params::distanceA);
if (it != _params.cend()) {
distanceA = converter::get_instance().string_to_int(it->second);
}
INTEGER distanceB = 1000; // 1Km
it = _params.find(Params::distanceB);
if (it != _params.cend()) {
distanceB = converter::get_instance().string_to_int(it->second);
}
INTEGER angle = 0;
it = _params.find(Params::angle);
if (it != _params.cend()) {
angle = converter::get_instance().string_to_int(it->second);
INTEGER station_type = 5; // passangerCar
it = _params.find(Params::station_type);
if (it != _params.cend()) {
station_type = converter::get_instance().string_to_int(it->second);
}
INTEGER country = 0;
it = _params.find(Params::country);
if (it != _params.cend()) {
country = converter::get_instance().string_to_int(it->second);
}
INTEGER type_of_address = 1; // Manual
it = _params.find(Params::type_of_address);
if (it != _params.cend()) {
type_of_address = converter::get_instance().string_to_int(it->second);
}
it = _params.find(Params::device_mode);
if (it != _params.cend()) {
_device_mode = (1 == converter::get_instance().string_to_int(it->second));
it = _params.find(Params::secured_mode);
if (it != _params.cend()) {
_secured_mode = (1 == converter::get_instance().string_to_int(it->second));
}
it = _params.find(Params::encrypted_mode);
if (it != _params.cend()) {
_encrypted_mode = (1 == converter::get_instance().string_to_int(it->second));
}
it = _params.find(Params::enable_security_checks);
if (it != _params.cend()) {
_enable_security_checks = (1 == converter::get_instance().string_to_int(it->second));
}
it = _params.find(Params::its_aid);
if (it == _params.cend()) {
_params.insert(std::pair<std::string, std::string>(std::string("its_aid"), "141"));
if (it == _params.cend()) {
_params.insert(std::pair<std::string, std::string>(std::string("mac_bc"), "FFFFFFFFFFFF"));
}
if (_secured_mode || _encrypted_mode) {
loggers::get_instance().log("GeoNetworkingLayer::GeoNetworkingLayer: Setup secured mode");
setup_secured_mode();
Params::const_iterator i = _params.find(Params::beaconing);
if ((i != _params.cend()) && (i->second.compare("1") == 0)) { // Immediate beaconing was requested
// Prepare beaconing operation
fill_beacon(ll_address, station_type, country, type_of_address);
fill_gbc_packet(ll_address, _latitude, _longitude, distanceA, distanceB, angle);// TODO Check if GeoBroadcastArea lat/lon are identical to lat/lon of the Test System
fill_shb_packet(ll_address);
fill_tsb_packet(ll_address);
fill_ls_reply(ll_address);
// Register this object for AdapterControlPort
loggers::get_instance().log("GeoNetworkingLayer::GeoNetworkingLayer: Register %s/%p", p_type.c_str(), this);
registration<GeoNetworkingLayer>::get_instance().add_item(p_type, this);
GeoNetworkingLayer::~GeoNetworkingLayer() {
loggers::get_instance().log(">>> GeoNetworkingLayer::~GeoNetworkingLayer");
if (_timerid != 0) {
timer_delete(_timerid);
}
if (_beacon != nullptr) {
delete _beacon;
}
if (_gbc_packet != nullptr) {
delete _gbc_packet;
}
if (_shb_packet != nullptr) {
delete _shb_packet;
if (_ls_reply != nullptr) {
delete _ls_reply;
}
} // End of destructor
void GeoNetworkingLayer::sendMsg(const LibItsGeoNetworking__TestSystem::GeoNetworkingReq& p, Params& params) {
loggers::get_instance().log(">>> GeoNetworkingLayer::sendMsg");
// Encode GeoNetworking PDU
OCTETSTRING data;
_codec.encode(p.msgOut(), data);
}
void GeoNetworkingLayer::sendData(OCTETSTRING& data, Params& params) {
loggers::get_instance().log_msg(">>> GeoNetworkingLayer::sendData: ", data);
if (_device_mode) { // Need to build a GN packet
params[Params::certificate] = _params[Params::certificate];
params[Params::signature] = _params[Params::signature];
if (build_geonetworking_pdu(data, params) != 0) {
if (_secured_mode) { // Add signature support
// TODO To be removed
while (_sendData.try_lock() == FALSE) {
// not ready yet
std::this_thread::sleep_for(std::chrono::milliseconds(1));
} // End of 'while' statement
sendToAllLayers(data, params);
_sendData.unlock();
loggers::get_instance().log("<<< GeoNetworkingLayer::sendData");
}
void GeoNetworkingLayer::receiveData(OCTETSTRING& data, Params& params) {
loggers::get_instance().log_msg(">>> GeoNetworkingLayer::receiveData: ", data);
// Check security mode
LibItsGeoNetworking__TypesAndValues::BasicHeader basic_header;
decode_basic_header(data, basic_header);
if ((int)basic_header.nextHeader() == 2) { // Verify and extract the GeoNetworking Secured Packet as specified in ETSI EN 302 636-4-1 V1.3.1 (2017-08) Clause 9.6.1 Composition of the Basic Header
unsigned int basic_header_len = 4;// FIXME How to retrive the BasicHeader length basic_header.get_descriptor()->raw->fieldlength / 8;
loggers::get_instance().log("GeoNetworkingLayer::receiveData: basic_header_len = %d", basic_header_len);
// Verify and extract the GeoNetworking Secured Packet as specified in ETSI EN 302 636-4-1 V1.3.1 (2017-08) Clause 9.4 GeoNetworking Secured Packet
OCTETSTRING unsecured_gn_payload;
OCTETSTRING secured_data = OCTETSTRING(data.lengthof() - basic_header_len, static_cast<const unsigned char*>(data) + basic_header_len);
if (*static_cast<const unsigned char*>(secured_data) == 0x02) { // This is the old Security version format, discard it
loggers::get_instance().warning("GeoNetworkingLayer::receiveData: Old security format, discard it");
return;
}
///////////////////
if (security_services::get_instance().verify_and_extract_gn_payload(secured_data, _enable_security_checks, unsecured_gn_payload, params) != 0) {
loggers::get_instance().warning("GeoNetworkingLayer::receiveData: Security error");
if (_enable_security_checks) {
return;
}
}
// Update data
loggers::get_instance().log_msg("GeoNetworkingLayer::receiveData: Unsecured payload: ", unsecured_gn_payload);
data = OCTETSTRING(basic_header_len, static_cast<const unsigned char*>(data)) + unsecured_gn_payload;
loggers::get_instance().log_msg("GeoNetworkingLayer::receiveData: Geonetworking payload to decode: ", data);
LibItsGeoNetworking__TestSystem::GeoNetworkingInd ind;
_codec.decode(data, ind.msgIn(), ¶ms);
const LibItsGeoNetworking__TypesAndValues::LongPosVector* sopv = nullptr;
const LibItsGeoNetworking__TypesAndValues::GnNonSecuredPacket& p = ind.msgIn().gnPacket().packet();
const LibItsGeoNetworking__TypesAndValues::HeaderTST& htst = p.commonHeader().headerTST();
if (p.extendedHeader().ispresent()) { // Update location table
const LibItsGeoNetworking__TypesAndValues::ExtendedHeader& ex = p.extendedHeader();
if (htst.ischosen(LibItsGeoNetworking__TypesAndValues::HeaderTST::ALT_beaconHdr)) { // Receive a beacon
sopv = &ex.beaconHeader().srcPosVector();
} else if (htst.ischosen(LibItsGeoNetworking__TypesAndValues::HeaderTST::ALT_tsbHdr)) { // Receive a topologicallyScopeBroadcast
if (ex.ischosen(LibItsGeoNetworking__TypesAndValues::ExtendedHeader::ALT_tsbHeader)) {
sopv = &ex.tsbHeader().srcPosVector();
} else {
sopv = &ex.shbHeader().srcPosVector();
}
} else if (htst.ischosen(LibItsGeoNetworking__TypesAndValues::HeaderTST::ALT_geoBroadcastHdr)) {
sopv = &ex.geoBroadcastHeader().srcPosVector();
} else if (htst.ischosen(LibItsGeoNetworking__TypesAndValues::HeaderTST::ALT_lsHdr)) { // Receive a location service
if (ex.ischosen(LibItsGeoNetworking__TypesAndValues::ExtendedHeader::ALT_lsRequestHeader)) { // Receive a LocationService/LsRequest
sopv = &ex.lsRequestHeader().srcPosVector();
// TODO Send LsReply if we are not in context of GN ATS in case of non GN test suite
if (_device_mode) {
// Update _ls_reply
ExtendedHeader* eh = static_cast<ExtendedHeader *>(_ls_reply->gnPacket().packet().extendedHeader().get_opt_value());
if (eh != nullptr) {
// Update sequence number
eh->lsReplyHeader().seqNumber() = _sequence_number++;
// Update destination
eh->lsReplyHeader().dstPosVector().gnAddr() = sopv->gnAddr();
eh->lsReplyHeader().dstPosVector().latitude() = sopv->latitude();
eh->lsReplyHeader().dstPosVector().longitude() = sopv->longitude();
// Update timestamp
unsigned long long ms = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count() - 1072911600000L; // TODO Add method such as its_tme() & its_time_mod() beacuse it is used also in LibItsCommon_externals
eh->lsReplyHeader().srcPosVector().timestamp__().set_long_long_val(ms);
eh->lsReplyHeader().dstPosVector().timestamp__() = eh->lsReplyHeader().srcPosVector().timestamp__();
loggers::get_instance().log_msg("GeoNetworkingLayer::receiveData: ", *_ls_reply);
// send it
// Encode GeoNetworking PDU
OCTETSTRING os;
_codec.encode(*_ls_reply, os);
if (build_secured_pdu(data, _params) != 0) {
// Send it
// TODO To be removed
while (_sendData.try_lock() == FALSE) {
// not ready yet
std::this_thread::sleep_for(std::chrono::milliseconds(1));
} // End of 'while' statement
sendToAllLayers(os, params);
_sendData.unlock();
} else {
loggers::get_instance().error("GeoNetworkingLayer::sendData: Wrong cast");
return;
}
}
} else {
sopv = &ex.lsReplyHeader().srcPosVector();
}
} else if (htst.ischosen(LibItsGeoNetworking__TypesAndValues::HeaderTST::ALT_geoAnycastHdr)) { // Receive a GeoAnycast
sopv = &ex.geoAnycastHeader().srcPosVector();
} else if (htst.ischosen(LibItsGeoNetworking__TypesAndValues::HeaderTST::ALT_geoUnicastHdr)) {
sopv = &ex.geoUnicastHeader().srcPosVector();
} else if (htst.ischosen(LibItsGeoNetworking__TypesAndValues::HeaderTST::ALT_saHdr)) { // Receive Service Advertisement
if (ex.ischosen(LibItsGeoNetworking__TypesAndValues::ExtendedHeader::ALT_tsbHeader)) { // TODO Check that Service Advertisment (ETSI TS 102 890-1) uses TSB
sopv = &ex.tsbHeader().srcPosVector();
} else {
sopv = &ex.tsbHeader().srcPosVector();
}
} // else, nothing to do
loggers::get_instance().log("GeoNetworkingLayer::receiveData: sopv is bound: %d", sopv->is_bound());
if(sopv->is_bound()) {
const LibItsGeoNetworking__TypesAndValues::LongPosVector& lpv = *sopv;
_location_table.add_entry(lpv);
}
}
// By default incoming beacons are filtered by the test adapter
if (htst.ischosen(LibItsGeoNetworking__TypesAndValues::HeaderTST::ALT_beaconHdr)) {
loggers::get_instance().log_msg("GeoNetworkingLayer::receiveData: Pass beaconing filtering", sopv->gnAddr().mid());
if (_pass_beacon_table.empty()) { // Discard beacon
loggers::get_instance().log("GeoNetworkingLayer::receiveData: Pass beaconing table empty, discard it");
return;
} else { // Check beacon filter for StartPassBeaconing/Stop
if (!_pass_beacon_table.has_entry(sopv->gnAddr().mid())) { // Discard beacon
loggers::get_instance().log_msg("GeoNetworkingLayer::receiveData: Not in pass beaconing table, discard it", *sopv);
return;
} // else, continue
}
} // else, continue
} else {
// Inavlid GeoNetworking payload, discard it
loggers::get_instance().warning("GeoNetworkingLayer::receiveData: Failed to decode payload, discard it");
return;
}
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// Add lower layers parameters
// 1. Destination MAC address
Params::const_iterator it = params.find(Params::mac_dst);
if (it != params.cend()) {
loggers::get_instance().log("GeoNetworkingLayer::receiveData: dst=%s", it->second.c_str());
ind.macDestinationAddress() = str2oct(CHARSTRING(it->second.c_str()));
} else {
ind.macDestinationAddress() = str2oct(CHARSTRING(_params["mac_bc"].c_str()));
}
// 2. ssp
it = params.find(Params::ssp);
if (it != params.cend()) {
loggers::get_instance().log("GeoNetworkingLayer::receiveData: ssp=%s", it->second.c_str());
ind.ssp() = str2bit(CHARSTRING(it->second.c_str()));
} else {
ind.ssp().set_to_omit();
}
// 3. its_aid
it = params.find(Params::its_aid);
if (it != params.cend()) {
loggers::get_instance().log("GeoNetworkingLayer::receiveData: its_aid=%s", it->second.c_str());
ind.its__aid() = std::stoi(it->second.c_str());
} else {
ind.its__aid().set_to_omit();
}
// Pass the GeoNetworking raw payload to the upper layers if any
it = params.find(Params::gn_payload);
if (it != params.cend()) {
loggers::get_instance().log("GeoNetworkingLayer::receiveData: gn_payload=%s", it->second.c_str());
OCTETSTRING os(str2oct(CHARSTRING(it->second.c_str())));
receiveToAllLayers(os, params);
} else {
loggers::get_instance().warning("GeoNetworkingLayer::receiveData: No payload to pass to upper layers");
}
// Pass it to the ports
toAllUpperPorts(ind, params);
}
OCTETSTRING GeoNetworkingLayer::trigger_ac_event(OCTETSTRING& data, Params& params)
{
loggers::get_instance().log_to_hexa(">>> GeoNetworkingLayer::trigger_ac_event: ", data);
return int2oct(0, 2);
} // End of trigger_ac_event method
void GeoNetworkingLayer::start_beaconing() {
loggers::get_instance().log(">>> GeoNetworkingLayer::start_beaconing");
//loggers::get_instance().log_msg("GeoNetworkingLayer::start_beaconing: _beacon=", *_beacon);
// Establish handler for timer signal
loggers::get_instance().log("GeoNetworkingLayer::start_beaconing: Establishing handler for signal %d\n", _signal_id);
_sa.sa_flags = SA_SIGINFO;
_sa.sa_sigaction = timer_irq_sigalrm_handler;
sigemptyset(&_sa.sa_mask);
if (sigaction(_signal_id, &_sa, nullptr) == -1) {
loggers::get_instance().error("GeoNetworkingLayer::start_beaconing: Sigaction failure: %d", errno);
}
// Block timer signal temporarily
loggers::get_instance().log("GeoNetworkingLayer::start_beaconing: Blocking signal %d\n", _signal_id);
sigemptyset(&_mask);
sigaddset(&_mask, _signal_id);
if (sigprocmask(SIG_SETMASK, &_mask, nullptr) == -1) {
loggers::get_instance().error("GeoNetworkingLayer::start_beaconing: Sigprocmask failure: %d", errno);
}
// Create the timer
_sev.sigev_notify = SIGEV_SIGNAL;
_sev.sigev_signo = _signal_id; // Use signal alarm
_sev.sigev_value.sival_ptr = this; // The GeoNetworkingLayer object address
if (timer_create(CLOCK_REALTIME, &_sev, &_timerid) == -1) {
loggers::get_instance().error("GeoNetworkingLayer::start_beaconing: Timer failure: %d", errno);
}
loggers::get_instance().log("GeoNetworkingLayer::start_beaconing: timer ID is 0x%x\n", (long)_timerid);
// Start the timer
unsigned int expiry = 1000; // Default expiry time 1000ms
Params::const_iterator i = _params.find("expiry");
if (i != _params.cend()) {
expiry = static_cast<unsigned int>(std::strtoul(i->second.c_str(), nullptr, 10));
}
_freq_nanosecs = expiry * 1000000;
_its.it_value.tv_sec = _freq_nanosecs / 1000000000;
_its.it_value.tv_nsec = _freq_nanosecs % 1000000000;
_its.it_interval.tv_sec = _its.it_value.tv_sec;
_its.it_interval.tv_nsec = _its.it_value.tv_nsec;
if (timer_settime(_timerid, 0, &_its, nullptr) == -1) {
loggers::get_instance().error("GeoNetworkingLayer::start_beaconing: Sigprocmask failure: %d", errno);
}
// Unlock the timer signal, so that timer notification can be delivered
loggers::get_instance().log("GeoNetworkingLayer::start_beaconing: Unblocking signal %d\n", _signal_id);
if (sigprocmask(SIG_UNBLOCK, &_mask, nullptr) == -1) {
loggers::get_instance().error("GeoNetworkingLayer::start_beaconing: Sigprocmask failure: %d", errno);
}
} // End of start_beaconing method
void GeoNetworkingLayer::start_beaconing(const LibItsGeoNetworking__TypesAndValues::GeoNetworkingPdu& p_beacon) {
loggers::get_instance().log_msg(">>> GeoNetworkingLayer::start_beaconing", p_beacon);
// Initialize the beacon
if (_beacon != nullptr) {
delete _beacon;
}
_beacon = new LibItsGeoNetworking__TypesAndValues::GeoNetworkingPdu(p_beacon);
start_beaconing(); // TODO Refined adding a boolean return code
} // End of start_beaconing method
void GeoNetworkingLayer::stop_beaconing() {
loggers::get_instance().log(">>> GeoNetworkingLayer::stop_beaconing");
// Block timer signal temporarily
loggers::get_instance().log("GeoNetworkingLayer::stop_beaconing: Blocking signal %d\n", _signal_id);
sigemptyset(&_mask);
sigaddset(&_mask, _signal_id);
if (sigprocmask(SIG_SETMASK, &_mask, nullptr) == -1) {
loggers::get_instance().error("GeoNetworkingLayer::stop_beaconing: Sigprocmask failure: %d", errno);
}
timer_delete(_timerid);
_timerid = 0;
} // End of stop_beaconing method
void GeoNetworkingLayer::send_beacon() {
loggers::get_instance().log(">>> GeoNetworkingLayer::send_beacon");
ExtendedHeader* eh = static_cast<ExtendedHeader *>(_beacon->gnPacket().packet().extendedHeader().get_opt_value());
loggers::get_instance().error("GeoNetworkingLayer::send_beacon: Wrong cast");
}
// Update timestamp
unsigned long long ms = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count() - 1072911600000L; // TODO Add method such as its_time() & its_time_mod()
eh->beaconHeader().srcPosVector().timestamp__().set_long_long_val((unsigned int)ms);
//loggers::get_instance().log_msg("GeoNetworkingLayer::send_beacon: ", *_beacon);
// Encode message using TITAN because of payload in omited
TTCN_Buffer encoding_buffer;
_beacon->encode(*(_beacon->get_descriptor()), encoding_buffer, TTCN_EncDec::CT_RAW);
OCTETSTRING data(encoding_buffer.get_len(), encoding_buffer.get_data());
if (_secured_mode) { // Apply signature
if (build_secured_pdu(data, _params) != 0) {
// TODO To be removed
while (_sendData.try_lock() == FALSE) {
// not ready yet
std::this_thread::sleep_for(std::chrono::milliseconds(1));
} // End of 'while' statement
sendToAllLayers(data, params);
_sendData.unlock();
//loggers::get_instance().log("<<< GeoNetworkingLayer::send_beacon");
} // End of send_beacon method
void GeoNetworkingLayer::start_pass_beaconing(const LibItsGeoNetworking__TypesAndValues::BeaconHeader& p_beacon) {
loggers::get_instance().log_msg(">>> GeoNetworkingLayer::start_pass_beaconing", p_beacon);
const LibItsGeoNetworking__TypesAndValues::LongPosVector& lpv = p_beacon.srcPosVector();
if (!_pass_beacon_table.has_entry(lpv.gnAddr().mid())) {
_pass_beacon_table.add_entry(lpv);
} // TODO Refined adding a boolean return code
} // End of start_pass_beaconing method
void GeoNetworkingLayer::stop_pass_beaconing() {
loggers::get_instance().log(">>> GeoNetworkingLayer::stop_pass_beaconing");
_pass_beacon_table.reset();
} // End of stop_pass_beaconing method
int GeoNetworkingLayer::enable_secured_mode(const std::string& p_certificate_id, const boolean p_enforce_security) {
loggers::get_instance().log(">>> GeoNetworkingLayer::enable_secured_mode: '%s' - %x", p_certificate_id.c_str(), p_enforce_security);
loggers::get_instance().log("GeoNetworkingLayer::enable_secured_mode: GN Layer address = %p", this);
loggers::get_instance().log("GeoNetworkingLayer::enable_secured_mode: _secured_mode = %x", _secured_mode);
if (!_secured_mode) {
loggers::get_instance().log("GeoNetworkingLayer::enable_secured_mode: Setup secured mode");
_secured_mode = true;
setup_secured_mode();
}
_enable_security_checks = p_enforce_security;
Params::const_iterator it = _params.find(Params::certificate);
if (it == _params.cend()) {
_params.insert(std::pair<std::string, std::string>(std::string("certificate"), p_certificate_id));
} else {
_params[Params::certificate] = p_certificate_id;
}
loggers::get_instance().log("GeoNetworkingLayer::enable_secured_mode: Certificate to be used: '%s'", _params[Params::certificate].c_str());
return 0;
const LongPosVector* GeoNetworkingLayer::get_lpv(const GN__Address& p_gn_address)
{
loggers::get_instance().log_msg(">>> GeoNetworkingLayer::get_lpv", p_gn_address);
const LongPosVector* lpv = nullptr;
if (_location_table.has_entry(p_gn_address.mid())) {
lpv = _location_table.get_entry(p_gn_address.mid());
}
return lpv;
} // End of get_lpv
void GeoNetworkingLayer::fill_beacon(const OCTETSTRING& p_ll_address, const INTEGER p_station_type, const INTEGER p_country, const INTEGER type_of_address)
{
_beacon = new GeoNetworkingPdu();
HeaderTST h;
h.beaconHdr() = BeaconHeaderType(
HeaderType(HeaderType::e__beacon),
0
);
ExtendedHeader eh;
eh.beaconHeader() = BeaconHeader(
LongPosVector(
GN__Address(
TypeOfAddress((TypeOfAddress)type_of_address),
StationType((StationType)p_station_type),
p_country,
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int2bit(0, 1),
0,
0
)
);
_beacon->basicHeader() = BasicHeader(
0,
BasicNextHeader(
BasicNextHeader::e__commonHeader
),
0,
Lifetime(
4,
LtBase(LtBase::e__50ms)
),
5
);
_beacon->gnPacket().packet() = GnNonSecuredPacket(
CommonHeader(
NextHeader(
NextHeader::e__any
),
0,
h,
TrafficClass(
SCF(SCF::e__scfDisabled),
ChannelOffload(ChannelOffload::e__choffDisabled),
0
),
int2bit(0, 8),
0,
1,
0
),
OPTIONAL<ExtendedHeader>(eh),
OPTIONAL<GnRawPayload>()
);
_beacon->gnPacket().packet().payload().set_to_omit();
_beacon->gnPacket().securedMsg().set_to_omit();
//loggers::get_instance().log_msg("GeoNetworkingLayer::fill_beacon: beacon value: ", *_beacon);
} // End of fill_beacon method
void GeoNetworkingLayer::fill_gbc_packet(const OCTETSTRING& p_ll_address, const INTEGER& p_geoAreaPosLatitude, const INTEGER& p_geoAreaPosLongitude, const INTEGER& p_distanceA, const INTEGER& p_distanceB, const INTEGER& p_angle)
_gbc_packet = new GeoNetworkingPdu();
HeaderTST h;
h.geoBroadcastHdr() = GeoBroadcastHeaderType(
HeaderType(HeaderType::e__geoBroadcast),
HeaderSubTypeGeoBroadcast(HeaderSubTypeGeoBroadcast::e__geoBroadcastElip)
);
ExtendedHeader eh;
eh.geoBroadcastHeader() = GeoAnycastHeader( // GeoBradcastHeader is identical as GeoAnycastHeader
0,
0,
LongPosVector(
GN__Address(
TypeOfAddress(TypeOfAddress::e__manual), // TODO Use Params
StationType(StationType::e__passengerCar), // TODO Use Params
33,
p_ll_address
),
0,
int2bit(1, 1), // PAI
0,
0
),
p_geoAreaPosLatitude,
p_geoAreaPosLongitude,
p_distanceA,
p_distanceB,
p_angle,
0
);
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_gbc_packet->basicHeader() = BasicHeader(
0,
BasicNextHeader(
BasicNextHeader::e__commonHeader
),
0,
Lifetime(
4,
LtBase(LtBase::e__50ms)
),
5
);
_gbc_packet->gnPacket().packet() = GnNonSecuredPacket(
CommonHeader(
NextHeader(
NextHeader::e__btpA
),
0,
h,
TrafficClass(
SCF(SCF::e__scfDisabled),
ChannelOffload(ChannelOffload::e__choffDisabled),
0
),
int2bit(128, 8), // Mobile stationnary flag set
0,
5,
0
),
OPTIONAL<ExtendedHeader>(eh),
OPTIONAL<GnRawPayload>()
);
_gbc_packet->gnPacket().packet().payload().set_to_omit();
_gbc_packet->gnPacket().securedMsg().set_to_omit();
//loggers::get_instance().log_msg("GeoNetworkingLayer::fill_gbc_packet: packet value: ", *_gbc_packet);
} // End of fill_gbc_packet method
void GeoNetworkingLayer::fill_shb_packet(const OCTETSTRING& p_ll_address)
{
_shb_packet = new GeoNetworkingPdu();
HeaderTST h;
h.tsbHdr() = TsbHeaderType(
HeaderType(HeaderType::e__topologicallyScopedBroadcast),
HeaderSubTypeTSB(HeaderSubTypeTSB::e__singleHop)
);
ExtendedHeader eh;
eh.shbHeader() = SHBHeader(
LongPosVector(
GN__Address(
TypeOfAddress(TypeOfAddress::e__manual), // TODO Use Params
StationType(StationType::e__passengerCar), // TODO Use Params
33,
p_ll_address
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int2bit(1, 1), // PAI
0,
0
),
0
);
_shb_packet->basicHeader() = BasicHeader(
0,
BasicNextHeader(
BasicNextHeader::e__commonHeader
),
0,
Lifetime(
4,
LtBase(LtBase::e__50ms)
),
1
);
_shb_packet->gnPacket().packet() = GnNonSecuredPacket(
CommonHeader(
NextHeader(
NextHeader::e__btpA
),
0,
h,
TrafficClass(
SCF(SCF::e__scfDisabled),
ChannelOffload(ChannelOffload::e__choffDisabled),
0
),
int2bit(128, 8), // Mobile stationnary flag set
0,
1,
0
),
OPTIONAL<ExtendedHeader>(eh),
OPTIONAL<GnRawPayload>()
);
_shb_packet->gnPacket().packet().payload().set_to_omit();
_shb_packet->gnPacket().securedMsg().set_to_omit();
//loggers::get_instance().log_msg("GeoNetworkingLayer::fill_shb_packet: packet value: ", *_shb_packet);
} // End of fill_shb_packet method
void GeoNetworkingLayer::fill_tsb_packet(const OCTETSTRING& p_ll_address, const int p_hop_number, const int p_max_hop_limit)
{
_tsb_packet = new GeoNetworkingPdu();
HeaderTST h;
h.tsbHdr() = TsbHeaderType(
HeaderType(HeaderType::e__topologicallyScopedBroadcast),
HeaderSubTypeTSB(HeaderSubTypeTSB::e__multiHop)
);
ExtendedHeader eh;
eh.tsbHeader() = TSBHeader(
0,
0,
LongPosVector(
GN__Address(
TypeOfAddress(TypeOfAddress::e__manual), // TODO Use Params
StationType(StationType::e__passengerCar), // TODO Use Params
33,
p_ll_address
),
0,
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int2bit(1, 1), // PAI
0,
0
)
);
_tsb_packet->basicHeader() = BasicHeader(
0,
BasicNextHeader(
BasicNextHeader::e__commonHeader
),
0,
Lifetime(
4,
LtBase(LtBase::e__50ms)
),
p_hop_number
);
_tsb_packet->gnPacket().packet() = GnNonSecuredPacket(
CommonHeader(
NextHeader(
NextHeader::e__btpA
),
0,
h,
TrafficClass(
SCF(SCF::e__scfDisabled),
ChannelOffload(ChannelOffload::e__choffDisabled),
0
),
int2bit(128, 8), // Mobile stationnary flag set
0,
p_max_hop_limit,
0
),
OPTIONAL<ExtendedHeader>(eh),
OPTIONAL<GnRawPayload>()
);
_tsb_packet->gnPacket().packet().payload().set_to_omit();
_tsb_packet->gnPacket().securedMsg().set_to_omit();
//loggers::get_instance().log_msg("GeoNetworkingLayer::fill_tsb_packet: packet value: ", *_tsb_packet);
} // End of fill_tsb_packet method
void GeoNetworkingLayer::fill_ls_reply(const OCTETSTRING& p_ll_address)
{
_ls_reply = new GeoNetworkingPdu();
HeaderTST h;
h.lsHdr() = LsHeaderType(
HeaderType(HeaderType::e__locationService),
HeaderSubTypeLs(HeaderSubTypeLs::e__lsReply)
);
ExtendedHeader eh;
eh.lsReplyHeader() = LSReplyHeader(
0,
0,
LongPosVector(
GN__Address(
TypeOfAddress(TypeOfAddress::e__manual), // TODO Use Params
StationType(StationType::e__passengerCar), // TODO Use Params
33,
p_ll_address
),
0,
int2bit(1, 1), // PAI
0,
0
),
ShortPosVector(
GN__Address(
TypeOfAddress(TypeOfAddress::e__manual), // TODO Use Params
StationType(StationType::e__passengerCar), // TODO Use Params
33,
p_ll_address
),
0,
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)
);
_ls_reply->basicHeader() = BasicHeader(
0,
BasicNextHeader(
BasicNextHeader::e__commonHeader
),
0,
Lifetime(
4,
LtBase(LtBase::e__50ms)
),
5
);
_ls_reply->gnPacket().packet() = GnNonSecuredPacket(
CommonHeader(
NextHeader(
NextHeader::e__any
),
0,
h,
TrafficClass(
SCF(SCF::e__scfDisabled),
ChannelOffload(ChannelOffload::e__choffDisabled),
0
),
int2bit(128, 8), // Mobile stationnary flag set
0,
5,
0
),
OPTIONAL<ExtendedHeader>(eh),
OPTIONAL<GnRawPayload>()
);
_ls_reply->gnPacket().packet().payload().set_to_omit();
_ls_reply->gnPacket().securedMsg().set_to_omit();
//loggers::get_instance().log_msg("GeoNetworkingLayer::fill_ls_reply: packet value: ", *_ls_reply);
} // End of fill_ls_reply method
void GeoNetworkingLayer::timer_irq_sigalrm_handler(int p_signal, siginfo_t *p_signal_info, void *p_uc) {
//loggers::get_instance().log(">>> GeoNetworkingLayer::timer_irq_sigalrm_handler: Caught signal %d", p_signal);
static_cast<GeoNetworkingLayer *>(p_signal_info->si_value.sival_ptr)->send_beacon();
} // End of method timer_irq_sigalrm_handler
int GeoNetworkingLayer::build_geonetworking_pdu(OCTETSTRING& data, Params& params) {
loggers::get_instance().log(">>> GeoNetworkingLayer::build_geonetworking_pdu");
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std::string next_header;
Params::const_iterator it = params.find(Params::next_header);
if (it != params.cend()) {
next_header = it->second.c_str();
}
std::string header_type;
it = params.find(Params::header_type);
if (it != params.cend()) {
header_type = it->second.c_str();
}
std::string header_sub_type;
it = params.find(Params::header_sub_type);
if (it != params.cend()) {
header_sub_type = it->second.c_str();
}
loggers::get_instance().log("GeoNetworkingLayer::build_geonetworking_pdu: %s, %s, %s", next_header.c_str(), header_type.c_str(), header_sub_type.c_str());
if (header_type.compare("tsb") == 0) {
if (header_sub_type.compare("sh") == 0) { // Use SHB
ExtendedHeader* eh = static_cast<ExtendedHeader *>(_shb_packet->gnPacket().packet().extendedHeader().get_opt_value());
if (eh == nullptr) {
loggers::get_instance().error("GeoNetworkingLayer::build_geonetworking_pdu: Wrong cast");
return -1;
}
// Update NextHeader
it = params.find(Params::next_header);
if (next_header.compare("btpB") == 0) {
_shb_packet->gnPacket().packet().commonHeader().nextHeader() = NextHeader::e__btpB;
} else { // Default btp is btpA
_shb_packet->gnPacket().packet().commonHeader().nextHeader() = NextHeader::e__btpA;
}
// Update payload
_shb_packet->gnPacket().packet().commonHeader().plLength() = data.lengthof();
_shb_packet->gnPacket().packet().payload() = OPTIONAL<OCTETSTRING>(data);
// Update timestamp
unsigned long long ms = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count() - 1072911600000L; // TODO Add method such as its_tme() & its_time_mod()
eh->shbHeader().srcPosVector().timestamp__().set_long_long_val(static_cast<unsigned int>(ms));
loggers::get_instance().log_msg("GeoNetworkingLayer::build_geonetworking_pdu: shb: ", *_shb_packet);
// Encode GeoNetworking PDU
OCTETSTRING os;
_codec.encode(*_shb_packet, os);
data = os;
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} else { // Use TSB
ExtendedHeader* eh = static_cast<ExtendedHeader *>(_tsb_packet->gnPacket().packet().extendedHeader().get_opt_value());
if (eh == nullptr) {
loggers::get_instance().error("GeoNetworkingLayer::build_geonetworking_pdu: Wrong cast");
return -1;
}
// Update sequence number
eh->tsbHeader().seqNumber() = _sequence_number++;
// Update NextHeader
it = params.find(Params::next_header);
if (next_header.compare("btpB") == 0) {
_tsb_packet->gnPacket().packet().commonHeader().nextHeader() = NextHeader::e__btpB;
} else { // Default btp is btpA
_tsb_packet->gnPacket().packet().commonHeader().nextHeader() = NextHeader::e__btpA;
}
// Update payload
_tsb_packet->gnPacket().packet().commonHeader().plLength() = data.lengthof();
_tsb_packet->gnPacket().packet().payload() = OPTIONAL<OCTETSTRING>(data);
// Update timestamp
unsigned long long ms = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count() - 1072911600000L; // TODO Add method such as its_tme() & its_time_mod()
eh->tsbHeader().srcPosVector().timestamp__().set_long_long_val(static_cast<unsigned int>(ms));
loggers::get_instance().log_msg("GeoNetworkingLayer::build_geonetworking_pdu: tsb: ", *_tsb_packet);
// Encode GeoNetworking PDU
OCTETSTRING os;
_codec.encode(*_tsb_packet, os);
data = os;
}
} else { // TODO To be continued
// Default: Use GBC
ExtendedHeader* eh = static_cast<ExtendedHeader *>(_gbc_packet->gnPacket().packet().extendedHeader().get_opt_value());
if (eh == nullptr) {
loggers::get_instance().error("GeoNetworkingLayer::build_geonetworking_pdu: Wrong cast");
return -1;
}
// Update NextHeader
it = params.find(Params::next_header);
if (next_header.compare("btpB") == 0) {
_gbc_packet->gnPacket().packet().commonHeader().nextHeader() = NextHeader::e__btpB;
} else { // Default btp is btpA
_gbc_packet->gnPacket().packet().commonHeader().nextHeader() = NextHeader::e__btpA;
}
// Update sequence number
eh->geoBroadcastHeader().seqNumber() = _sequence_number++;
// Update payload
_gbc_packet->gnPacket().packet().commonHeader().plLength() = data.lengthof();
_gbc_packet->gnPacket().packet().payload() = OPTIONAL<OCTETSTRING>(data);
// Update timestamp
unsigned long long ms = std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count() - 1072911600000L; // TODO Add method such as its_tme() & its_time_mod()
eh->geoBroadcastHeader().srcPosVector().timestamp__().set_long_long_val(static_cast<unsigned int>(ms));
loggers::get_instance().log_msg("GeoNetworkingLayer::build_geonetworking_pdu: gbc: ", *_gbc_packet);
// Encode GeoNetworking PDU
OCTETSTRING os;
_codec.encode(*_gbc_packet, os);
data = os;
}
return 0;
}
int GeoNetworkingLayer::build_secured_pdu(OCTETSTRING& data, Params& params) {
loggers::get_instance().log_msg(">>> GeoNetworkingLayer::build_secured_pdu: ", data);
LibItsGeoNetworking__TypesAndValues::BasicHeader basic_header;
decode_basic_header(data, basic_header);
// Update security mode
unsigned int basic_header_len = 4;// FIXME How to retrive the BasicHeader length basic_header.get_descriptor()->raw->fieldlength / 8;
loggers::get_instance().log("GeoNetworkingLayer::build_secured_pdu: basic_header_len = %d", basic_header_len);
basic_header.nextHeader() = BasicNextHeader::e__securedPacket;
OCTETSTRING unsecured_gn_payload = OCTETSTRING(data.lengthof() - basic_header_len, static_cast<const unsigned char*>(data) + basic_header_len);
if (security_services::get_instance().secure_gn_payload(unsecured_gn_payload, secured_gn_payload, params) != 0) {
loggers::get_instance().warning("GeoNetworkingLayer::build_secured_pdu: failed to build secured pdu");
return -1;
}
// Encode the basid header
//loggers::get_instance().log_msg("GeoNetworkingLayer::build_secured_pdu: New basic_header = ", basic_header);
RAW_enc_tr_pos rp;
rp.level=0;
rp.pos=NULL;
RAW_enc_tree enc_tree(FALSE, NULL, &rp, 1, basic_header.get_descriptor()->raw);
basic_header.RAW_encode(*basic_header.get_descriptor(), enc_tree);
TTCN_Buffer encoding_buffer;
enc_tree.put_to_buf(encoding_buffer);
// Copy result
data =
OCTETSTRING(encoding_buffer.get_len(), encoding_buffer.get_data()) +
secured_gn_payload;
loggers::get_instance().log_msg("GeoNetworkingLayer::build_secured_pdu: Secured pdu = ", data);
}
int GeoNetworkingLayer::decode_basic_header(const OCTETSTRING& p_data, LibItsGeoNetworking__TypesAndValues::BasicHeader& p_basic_header) {
loggers::get_instance().log_msg(">>> GeoNetworkingLayer::decode_basic_header: ", p_data);
// Update security mode
OCTETSTRING bh = OCTETSTRING(4, static_cast<const unsigned char*>(p_data)); // Extract the basic header as specified in ETSI EN 302 636-4-1 V1.3.1 (2017-08) Clause 9.6
loggers::get_instance().log_msg("GeoNetworkingLayer::decode_basic_header: bh: ", bh);
TTCN_Buffer decoding_buffer(bh);
p_basic_header.RAW_decode(*p_basic_header.get_descriptor(), decoding_buffer, decoding_buffer.get_len() * 8, raw_order_t::ORDER_MSB);
loggers::get_instance().log_msg("GeoNetworkingLayer::decode_basic_header: ", p_basic_header);
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int GeoNetworkingLayer::setup_secured_mode() {
loggers::get_instance().log(">>> GeoNetworkingLayer::setup_secured_mode");
loggers::get_instance().log("GeoNetworkingLayer::setup_secured_mode: GN Layer address = %p", this);
Params::const_iterator it = _params.find(Params::certificate);
if (it == _params.cend()) {
_params.insert(std::pair<std::string, std::string>(std::string("certificate"), "CERT_TS_A_AT"));
}
it = _params.find(Params::sec_db_path);
if (it == _params.cend()) {
_params.insert(std::pair<std::string, std::string>(std::string("sec_db_path"), ""));
}
it = _params.find(Params::hash);
if (it == _params.cend()) {
_params.insert(std::pair<std::string, std::string>(std::string("hash"), "SHA-256"));
}
it = _params.find(Params::signature);
if (it == _params.cend()) {
_params.insert(std::pair<std::string, std::string>(std::string("signature"), "NISTP-256"));
}
// Set up security services even if secured_mode is set to 0. Later, we can receive an AcEnableSecurity request, the sertificate caching will be ready to go
security_services::get_instance().setup(_params);
security_services::get_instance().set_position(_latitude, _longitude);
return 0;
}
GeoNetworkingLayerFactory GeoNetworkingLayerFactory::_f;