void
Nlsrc::onControlResponse(const std::string& info, const ndn::Data& data)
{
if (data.getMetaInfo().getType() == ndn::tlv::ContentType_Nack) {
std::cerr << "ERROR: Run-time advertise/withdraw disabled" << std::endl;
return;
}
ndn::nfd::ControlResponse response;
try {
response.wireDecode(data.getContent().blockFromValue());
}
catch (const std::exception& e) {
std::cerr << "ERROR: Control response decoding error" << std::endl;
return;
}
uint32_t code = response.getCode();
if (code != RESPONSE_CODE_SUCCESS) {
std::cerr << "Name prefix update error (code: " << code << ")" << std::endl;
return;
}
std::cout << "Applied Name prefix update successfully: " << info << std::endl;
}
void
EdgeStrategy::toNack( ndn::Data& data, const ndn::Interest& interest )
{
// ensure that denied data doesn't leave the network
data.setContent( ndn::Block() );
data.wireEncode();
// do whatever a normal router would do
RouterStrategy::toNack( data, interest );
}
void
EdgeStrategy::toPreserve( ndn::Data& data,
const ndn::Interest& interest )
{
if( data.getContentType() == ndn::tlv::ContentType_Nack )
{
data.setContent( ndn::Block() );
data.wireEncode();
}
}
void
onData( ndn::Face &face,
const ndn::Interest& interest,
ndn::Data& data,
int globalReference,
int localReference,
int patternId,
boost::posix_time::ptime sentTime )
{
double roundTripTime;
int receivedContentLength;
std::string receivedContent;
std::string logLine;
logLine = "";
logLine += "Data Received - PatternType="+toString(patternId+1);
logLine += ", GlobalID="+toString(globalReference);
logLine += ", LocalID="+toString(localReference);
logLine += ", Name="+interest.getName().toUri();
boost::posix_time::time_duration roundTripDuration;
totalInterestReceived_++;
trafficPattern_[patternId].totalInterestReceived++;
if (trafficPattern_[patternId].expectedContent != "")
{
receivedContent = (char*)(data.getContent().value());
receivedContentLength = data.getContent().value_size();
receivedContent = receivedContent.substr(0, receivedContentLength);
if (receivedContent != trafficPattern_[patternId].expectedContent)
{
contentInconsistencies_++;
trafficPattern_[patternId].contentInconsistencies++;
logLine += ", IsConsistent=No";
}
else
logLine += ", IsConsistent=Yes";
}
else
logLine += ", IsConsistent=NotChecked";
m_logger.log(logLine, true, false);
roundTripDuration = boost::posix_time::microsec_clock::local_time() - sentTime;
roundTripTime = roundTripDuration.total_microseconds()/1000.0;
if (minimumInterestRoundTripTime_ > roundTripTime)
minimumInterestRoundTripTime_ = roundTripTime;
if (maximumInterestRoundTripTime_ < roundTripTime)
maximumInterestRoundTripTime_ = roundTripTime;
if (trafficPattern_[patternId].minimumInterestRoundTripTime > roundTripTime)
trafficPattern_[patternId].minimumInterestRoundTripTime = roundTripTime;
if (trafficPattern_[patternId].maximumInterestRoundTripTime < roundTripTime)
trafficPattern_[patternId].maximumInterestRoundTripTime = roundTripTime;
totalInterestRoundTripTime_ += roundTripTime;
trafficPattern_[patternId].totalInterestRoundTripTime += roundTripTime;
if (totalInterestSent_ == interestCount_)
signalHandler();
}
// This is the first function that incoming Hello data will
// see. This checks if the data appears to be signed, and passes it
// on to validate the content of the data.
void
HelloProtocol::onContent(const ndn::Interest& interest, const ndn::Data& data)
{
_LOG_DEBUG("Received data for INFO(name): " << data.getName());
if (data.getSignature().hasKeyLocator()) {
if (data.getSignature().getKeyLocator().getType() == ndn::KeyLocator::KeyLocator_Name) {
_LOG_DEBUG("Data signed with: " << data.getSignature().getKeyLocator().getName());
}
}
m_nlsr.getValidator().validate(data,
ndn::bind(&HelloProtocol::onContentValidated, this, _1),
ndn::bind(&HelloProtocol::onContentValidationFailed,
this, _1, _2));
}
void
SimpleDataRetrieval::onData(const ndn::Interest& interest, ndn::Data& data)
{
if (m_isRunning == false)
return;
ConsumerDataCallback onDataEnteredContext = EMPTY_CALLBACK;
m_context->getContextOption(DATA_ENTER_CNTX, onDataEnteredContext);
if (onDataEnteredContext != EMPTY_CALLBACK)
{
onDataEnteredContext(*dynamic_cast<Consumer*>(m_context), data);
}
ConsumerInterestCallback onInterestSatisfied = EMPTY_CALLBACK;
m_context->getContextOption(INTEREST_SATISFIED, onInterestSatisfied);
if (onInterestSatisfied != EMPTY_CALLBACK)
{
onInterestSatisfied(*dynamic_cast<Consumer*>(m_context), const_cast<Interest&>(interest));
}
ConsumerDataVerificationCallback onDataToVerify = EMPTY_CALLBACK;
m_context->getContextOption(DATA_TO_VERIFY, onDataToVerify);
if (onDataToVerify != EMPTY_CALLBACK)
{
if (onDataToVerify(*dynamic_cast<Consumer*>(m_context), data) == true) // runs verification routine
{
const Block content = data.getContent();
ConsumerContentCallback onPayload = EMPTY_CALLBACK;
m_context->getContextOption(CONTENT_RETRIEVED, onPayload);
if (onPayload != EMPTY_CALLBACK)
{
onPayload(*dynamic_cast<Consumer*>(m_context), content.value(), content.value_size());
}
}
}
else
{
const Block content = data.getContent();
ConsumerContentCallback onPayload = EMPTY_CALLBACK;
m_context->getContextOption(CONTENT_RETRIEVED, onPayload);
if (onPayload != EMPTY_CALLBACK)
{
onPayload(*dynamic_cast<Consumer*>(m_context), content.value(), content.value_size());
}
}
m_isRunning = false;
}
void
onData(const ndn::Interest& interest, ndn::Data& data)
{
m_isDataReceived = true;
if (m_isPayloadOnlySet)
{
const ndn::Block& block = data.getContent();
std::cout.write(reinterpret_cast<const char*>(block.value()), block.value_size());
}
else
{
const ndn::Block& block = data.wireEncode();
std::cout.write(reinterpret_cast<const char*>(block.wire()), block.size());
}
}
bool
EdgeStrategy::filterOutgoingData
( const nfd::Face& face,
const ndn::Interest& interest,
ndn::Data& data,
ns3::Time& delay )
{
auto in_face = getFaceTable().get( data.getIncomingFaceId() );
bool coming_from_network = !in_face->isEdge();
bool going_to_network = !face.isEdge();
// if the data is coming from and leaving to
// the same network then we don't need to do
// anything special
if( coming_from_network == going_to_network )
{
return RouterStrategy::filterOutgoingData
( face, interest, data, delay );
}
// if the data is coming into the network then
// we just change its current network
if( going_to_network )
{
BOOST_ASSERT( data.getCurrentNetwork()
== ndn::RouteTracker::EXIT_NETWORK );
tracers::edge->data_entered( data );
data.setCurrentNetwork( ndn::RouteTracker::INTERNET_NETWORK );
return RouterStrategy::filterOutgoingData
( face, interest, data, delay );
}
// if the data is leaving the network then we change
// its current network
if( coming_from_network )
{
BOOST_ASSERT( data.getCurrentNetwork()
== ndn::RouteTracker::INTERNET_NETWORK );
tracers::edge->data_left( data );
data.setCurrentNetwork( ndn::RouteTracker::ENTRY_NETWORK );
return RouterStrategy::filterOutgoingData
( face, interest, data, delay );
}
// this should never happen
BOOST_ASSERT( false );
return true;
}
void
EdgeStrategy::onDataDenied
( const ndn::Data& data,
const ndn::Interest& interest,
ns3::Time& delay,
const std::string& why )
{
// if the denied data isn't leaving the network
// then we just do the normal router stuff
auto in_face = getFaceTable().get( data.getIncomingFaceId() );
auto out_face = getFaceTable().get( interest.getIncomingFaceId() );
bool coming_from_network = !in_face->isEdge();
bool going_to_network = !out_face->isEdge();
if( coming_from_network == going_to_network )
{
RouterStrategy::onDataDenied( data, interest, delay, why );
return;
}
if( going_to_network )
{
BOOST_ASSERT( data.getCurrentNetwork()
== ndn::RouteTracker::INTERNET_NETWORK );
RouterStrategy::onDataDenied( data, interest, delay, why );
return;
}
// if the data is denied then we add the
// tag used to retrieve it to the negative
// cache; however we only want to do this
// when the data is leaving the internet
// and going into the client network
// and the data's access level > 0
BOOST_ASSERT( data.getCurrentNetwork()
== ndn::RouteTracker::ENTRY_NETWORK );
if( data.getAccessLevel() > 0 )
{
BOOST_ASSERT( interest.hasAuthTag() );
tracers::edge->bloom_insert
( interest.getAuthTag(), s_edge_bloom_delay );
delay += s_edge_bloom_delay;
m_negative_cache.insert( interest.getAuthTag() );
}
// do whatever a normal router would do
RouterStrategy::onDataDenied( data, interest, delay, why );
}
virtual ndn::shared_ptr<const ndn::Data>
preCertificateValidation(const ndn::Data& data)
{
ndn::shared_ptr<ndn::Data> internalData = ndn::make_shared<ndn::Data>();
internalData->wireDecode(data.getContent().blockFromValue());
return internalData;
}
void PutDataToFile(ndn::Data data){
const ndn::Block& block = data.getContent();
size_t fileSize = block.value_size();
std::cout << fileSize << std::endl;
std::ofstream fout;
fout.open("/home/hult/dataPacketFile");
fout.write((char*)(reinterpret_cast<const uint8_t*>(block.value())), block.value_size());
fout.close();
}
void
EdgeStrategy::onDataSatisfied
( const ndn::Data& data,
const ndn::Interest& interest,
ns3::Time& delay )
{
// if the satisfied data isn't leaving the network
// then we just do the normal router stuff
auto in_face = getFaceTable().get( data.getIncomingFaceId() );
auto out_face = getFaceTable().get( interest.getIncomingFaceId() );
bool coming_from_network = !in_face->isEdge();
bool going_to_network = !out_face->isEdge();
if( coming_from_network == going_to_network )
{
RouterStrategy::onDataSatisfied( data, interest, delay );
return;
}
if( going_to_network )
{
BOOST_ASSERT( data.getCurrentNetwork()
== ndn::RouteTracker::INTERNET_NETWORK );
RouterStrategy::onDataSatisfied( data, interest, delay );
return;
}
// if the data is satisfied then we add it to
// the positive cache if it isn't marked with
// the no recache flag and if its access level > 0
BOOST_ASSERT( data.getCurrentNetwork()
== ndn::RouteTracker::ENTRY_NETWORK );
if( !data.getNoReCacheFlag()
&& data.getAccessLevel() > 0 )
{
BOOST_ASSERT( interest.hasAuthTag() );
tracers::edge->bloom_insert
( interest.getAuthTag(), s_edge_bloom_delay );
delay += s_edge_bloom_delay;
m_positive_cache.insert( interest.getAuthTag() );
}
RouterStrategy::onDataSatisfied( data, interest, delay );
}
void
validate(const ndn::Data& data)
{
BOOST_CHECK_EQUAL(data.getFreshnessPeriod(), m_expectedFreshnessPeriod);
ndn::Block payload = data.getContent();
m_buffer.appendByteArray(payload.value(), payload.value_size());
// uint64_t segmentNo = data.getName()[-1].toSegment();
if (data.getFinalBlockId() != data.getName()[-1])
{
return;
}
// wrap data in a single Content TLV for easy parsing
m_buffer.prependVarNumber(m_buffer.size());
m_buffer.prependVarNumber(ndn::tlv::Content);
BOOST_TEST_CHECKPOINT("creating parser");
ndn::Block parser(m_buffer.buf(), m_buffer.size());
BOOST_TEST_CHECKPOINT("parsing aggregated response");
parser.parse();
BOOST_REQUIRE_EQUAL(parser.elements_size(), m_publisher.getLimit());
uint64_t expectedNo = m_publisher.getLimit() - 1;
for (ndn::Block::element_const_iterator i = parser.elements_begin();
i != parser.elements_end();
++i)
{
uint64_t number = readNonNegativeInteger(*i);
BOOST_REQUIRE_EQUAL(number, expectedNo);
--expectedNo;
}
}
virtual void
onData(const ndn::Interest& interest, const ndn::Data& data)
{
int dollarfound=0;
int hashfound=0;
int i=0;
cout << data.getName().size() << endl;
int comp_size=data.getName().size();
string last_comp=data.getName().get(comp_size-1).toUri();
string check=UriDecode(last_comp);
cout<<check<<endl;
cout<<"Last component is "<<last_comp<<endl;
std::size_t found = check.find("#");
if (found!=std::string::npos)
{
hashfound=1;
}
found = check.find("$");
if (found!=std::string::npos)
{
dollarfound=1;
}
printf("DollarFound:%d and HashFound:%d\n",dollarfound,hashfound);
std::cout << "Received Data " << data << std::endl;
const ndn::Block& payload = data.getContent();
std:: cout << "payload: ";
std::cout.write(reinterpret_cast<const char*>(payload.value()), payload.value_size());
std:: cout << std::endl;
if(dollarfound==1)
{
printf("Inside Dollar Found\n");
const char *sending=reinterpret_cast<const char*>(payload.value());
string received=string(sending);
int max_seg_consumer=stoi(received);
printf("Maximum Number of Segments is =%d\n",max_seg_consumer);
//Write code to express interest for the 0th segment
string seg_req_0=UriDecode(data.getName().toUri());
seg_req_0.pop_back();
seg_req_0.append(to_string(max_seg_consumer));
seg_req_0.append("/#0");
printf("String for 0th segment is :");
cout<<seg_req_0<<endl;
char str_send[2][1000];
memset(&str_send,0,sizeof(str_send));
strcpy(str_send[0], seg_req_0.c_str());
cout<<"String being sent in $ is:"<<str_send[0]<<endl;
const ndn::Name name1(str_send[0]);
ndn::Interest request(name1);
m_face.expressInterest(request,
bind(&Consumer::onData, this, _1, _2),
bind(&Consumer::onTimeout, this, _1));
// m_face.processEvents();
}
if(hashfound==1){
printf("Inside Hash Fund\n");
//Write code to print to the file and ask the next segment
string filename;
for(i=0;i<comp_size-2;i++)
{
string mid=data.getName().get(i).toUri();
string checking=UriDecode(mid);
filename = filename + '_' +mid;
}
char node_name[node_size];
gethostname(node_name,node_size);
string node_n=string(node_name);
node_n.append("-");
node_n=node_n + filename;
cout<<node_n<<endl;
FILE *fp1=fopen(node_n.c_str(),"a");
fseek(fp1, 0L, SEEK_END);
int start_ind=0;
start_ind=stoi(check.substr(1));
const char *sending=reinterpret_cast<const char*>(payload.value());
int start1=start_ind*MAX_SEG;
fseek(fp1,start1,SEEK_SET);
int just_checking=0;
if (!(just_checking=fwrite(sending,1,(int)payload.value_size(),fp1))) {
fprintf(stderr, "Failure");
//perror(???) I sometimes see code that says perror here and I don't know
//exactly what this does.
}
printf("Just checking.......%d\n",just_checking);
//fwrite(sending,1,(int)payload.value_size(),fp1);
// fwrite(sending,1,payload.value_size(),fp1);
fclose(fp1);
/* int start_ind=stoi(check.substr(1));
std::ofstream ofs;
ofs.open (node_n, std::ofstream::out | std::ofstream::app);
ofs.write(reinterpret_cast<const char*>(payload.value()), payload.value_size());
ofs.close();*/
start_ind++;
// printf("Maximum segment count inside the hash function before the condition is:%d and value of start is: %d\n",max_seg_consumer,start_ind);
int max_seg_consumer=stoi(UriDecode(data.getName().get(comp_size-2).toUri()));
if(start_ind<max_seg_consumer)
{
printf("Inside the if consition for max segments\n");
string seg_req=UriDecode(data.getName().toUri());
size_t found = seg_req.find_last_of("#");
seg_req=seg_req.substr(0,found+1);
seg_req.append(to_string(start_ind));
char str_send[5][1000];
memset(&str_send,0,sizeof(str_send));
strcpy(str_send[0], seg_req.c_str());
cout<<"String that is being sent in ####"<<str_send<<endl;
const ndn::Name name1(str_send[0]);
ndn::Interest request(name1);
m_face.expressInterest(request,
bind(&Consumer::onData, this, _1, _2),
bind(&Consumer::onTimeout, this, _1));
}
else
{
char buf[16];
snprintf(buf, 16, "%lu", time(NULL));
strcat(timer,"\n");
char tab2[100];
memset(&tab2,0,sizeof(tab2));
strcpy(tab2, node_n.c_str());
strcat(timer,tab2);
strcat(timer," End: ");
strcat(timer,buf);
strcat(timer,"\n");
FILE *fp3;
fp3=fopen("logs_shivani.txt","a");
fwrite(timer,1,sizeof(timer),fp3);
fclose(fp3);
memset(&timer,0,sizeof(timer));
}
}
}
void putDataToBuffer(ndn::Data dataPacket, char *buffer){
const ndn::Block& block = dataPacket.getContent();
memcpy(buffer, (char*)(reinterpret_cast<const uint8_t*>(block.value())), block.value_size());
}
void
onReadData(const ndn::Interest& interest, ndn::Data& data)
{
int rc = memcmp(data.getContent().value(), content, sizeof(content));
BOOST_CHECK_EQUAL(rc, 0);
}
void
onData(const ndn::Interest& interest, ndn::Data& data, std::string linkPrefix)
{
std::cout << "Data received for: " << interest.getName() << std::endl;
CollectorData reply;
reply.wireDecode(data.getContent().blockFromValue());
if(reply.m_statusList.empty())
{
std::cerr << "received data is empty!!" << std::endl;
}
// get the list of the remote links requested for this prefix
std::unordered_map<std::string,std::list<ndn::NdnMapServer::linkPair>>::const_iterator got = m_linksList.find(linkPrefix);
if(got == m_linksList.end())
{
std::cerr << "failed to recognize the prefix: " << linkPrefix << std::endl;
}
else
{
std::list<ndn::NdnMapServer::linkPair> prefixList = got->second;
for (unsigned i=0; i< reply.m_statusList.size(); i++)
{
int LinkId = 0;
std::cout << "Reply: " << reply.m_statusList.at(i);
// get the link id of the current IP
for (auto pair = prefixList.cbegin(); pair != prefixList.cend(); ++pair)
{
if((*pair).linkIp == reply.m_statusList[i].getLinkIp())
{
if (DEBUG)
std::cout << " Link ID for " << linkPrefix << " and " << reply.m_statusList[i].getLinkIp() << " is " << (*pair).linkId << std::endl;
LinkId = (*pair).linkId;
}
}
std::string cmdStr("http://");
cmdStr += m_mapServerAddr;
cmdStr += "/bw/";
cmdStr += std::to_string(LinkId);
cmdStr += "/" + reply.m_statusList[i].getTimestamp() + "/";
cmdStr += std::to_string(reply.m_statusList[i].getTx() * 8) + "/";
cmdStr += std::to_string(reply.m_statusList[i].getRx() * 8);
if (DEBUG)
std::cout << "cmd to pass to curl: " << cmdStr << std::endl;
int status;
// check for zombies
waitpid(-1, &status, WNOHANG);
int pid;
if ((pid = fork()) < 0)
printf("for failed for curl %s\n", cmdStr.c_str());
else
{
if (pid == 0)
execl("/usr/bin/curl","curl", "-s", "-L", cmdStr.c_str(), NULL);
}
// check for zombies again
waitpid(-1, &status, WNOHANG);
}
reply.m_statusList.clear();
}
}
