void
Forwarder::onIncomingInterest(Face& inFace, const Interest& interest)
{
// receive Interest
NFD_LOG_DEBUG("onIncomingInterest face=" << inFace.getId() <<
" interest=" << interest.getName());
const_cast<Interest&>(interest).setIncomingFaceId(inFace.getId());
++m_counters.getNInInterests();
// /localhost scope control
bool isViolatingLocalhost = !inFace.isLocal() &&
LOCALHOST_NAME.isPrefixOf(interest.getName());
if (isViolatingLocalhost) {
NFD_LOG_DEBUG("onIncomingInterest face=" << inFace.getId() <<
" interest=" << interest.getName() << " violates /localhost");
// (drop)
return;
}
// PIT insert
shared_ptr<pit::Entry> pitEntry = m_pit.insert(interest).first;
// detect duplicate Nonce
int dnw = pitEntry->findNonce(interest.getNonce(), inFace);
bool hasDuplicateNonce = (dnw != pit::DUPLICATE_NONCE_NONE) ||
m_deadNonceList.has(interest.getName(), interest.getNonce());
if (hasDuplicateNonce) {
// goto Interest loop pipeline
this->onInterestLoop(inFace, interest, pitEntry);
return;
}
// cancel unsatisfy & straggler timer
this->cancelUnsatisfyAndStragglerTimer(pitEntry);
// is pending?
const pit::InRecordCollection& inRecords = pitEntry->getInRecords();
bool isPending = inRecords.begin() != inRecords.end();
if (!isPending) {
if (m_csFromNdnSim == nullptr) {
m_cs.find(interest,
bind(&Forwarder::onContentStoreHit, this, ref(inFace), pitEntry, _1, _2),
bind(&Forwarder::onContentStoreMiss, this, ref(inFace), pitEntry, _1));
}
else {
shared_ptr<Data> match = m_csFromNdnSim->Lookup(interest.shared_from_this());
if (match != nullptr) {
this->onContentStoreHit(inFace, pitEntry, interest, *match);
}
else {
this->onContentStoreMiss(inFace, pitEntry, interest);
}
}
}
else {
this->onContentStoreMiss(inFace, pitEntry, interest);
}
}
static vector<string>
dumpInterest(const Interest& interest)
{
vector<string> result;
result.push_back(dump("name:", interest.getName().toUri()));
result.push_back(dump("minSuffixComponents:",
interest.getMinSuffixComponents() >= 0 ?
toString(interest.getMinSuffixComponents()) : "<none>"));
result.push_back(dump("maxSuffixComponents:",
interest.getMaxSuffixComponents() >= 0 ?
toString(interest.getMaxSuffixComponents()) : "<none>"));
if ((int)interest.getKeyLocator().getType() >= 0) {
if (interest.getKeyLocator().getType() == ndn_KeyLocatorType_KEY_LOCATOR_DIGEST)
result.push_back(dump("keyLocator: KeyLocatorDigest:",
interest.getKeyLocator().getKeyData().toHex()));
else if (interest.getKeyLocator().getType() == ndn_KeyLocatorType_KEYNAME)
result.push_back(dump("keyLocator: KeyName:",
interest.getKeyLocator().getKeyName().toUri()));
else
result.push_back(dump("keyLocator: <unrecognized KeyLocatorType"));
}
else
result.push_back(dump("keyLocator: <none>"));
result.push_back(dump("exclude:",
interest.getExclude().size() > 0 ? interest.getExclude().toUri() :
"<none>"));
result.push_back(dump("childSelector:",
interest.getChildSelector() >= 0 ? toString(interest.getChildSelector()) :
"<none>"));
result.push_back(dump("mustBeFresh:",
interest.getMustBeFresh() ? "True" : "False"));
result.push_back(dump("nonce:",
interest.getNonce().size() == 0 ? "<none>" :
interest.getNonce().toHex()));
result.push_back(dump("lifetimeMilliseconds:",
interest.getInterestLifetimeMilliseconds() < 0 ? "<none>" :
toString(interest.getInterestLifetimeMilliseconds())));
return result;
};
static void dumpInterest(const Interest& interest)
{
cout << "name: " << interest.getName().toUri() << endl;
cout << "minSuffixComponents: ";
if (interest.getMinSuffixComponents() >= 0)
cout << interest.getMinSuffixComponents() << endl;
else
cout << "<none>" << endl;
cout << "maxSuffixComponents: ";
if (interest.getMaxSuffixComponents() >= 0)
cout << interest.getMaxSuffixComponents() << endl;
else
cout << "<none>" << endl;
cout << "keyLocator: ";
if ((int)interest.getKeyLocator().getType() >= 0) {
if (interest.getKeyLocator().getType() == ndn_KeyLocatorType_KEY_LOCATOR_DIGEST)
cout << "KeyLocatorDigest: " << interest.getKeyLocator().getKeyData().toHex() << endl;
else if (interest.getKeyLocator().getType() == ndn_KeyLocatorType_KEYNAME)
cout << "KeyName: " << interest.getKeyLocator().getKeyName().toUri() << endl;
else
cout << "<unrecognized ndn_KeyLocatorType " << interest.getKeyLocator().getType() << ">" << endl;
}
else
cout << "<none>" << endl;
cout << "exclude: "
<< (interest.getExclude().size() > 0 ? interest.getExclude().toUri() : "<none>") << endl;
cout << "lifetimeMilliseconds: ";
if (interest.getInterestLifetimeMilliseconds() >= 0)
cout << interest.getInterestLifetimeMilliseconds() << endl;
else
cout << "<none>" << endl;
cout << "childSelector: ";
if (interest.getChildSelector() >= 0)
cout << interest.getChildSelector() << endl;
else
cout << "<none>" << endl;
cout << "mustBeFresh: " << (interest.getMustBeFresh() ? "true" : "false") << endl;
cout << "nonce: "
<< (interest.getNonce().size() > 0 ? interest.getNonce().toHex() : "<none>") << endl;
}
void
Forwarder::onIncomingInterest(Face& inFace, const Interest& interest)
{
// receive Interest
NFD_LOG_DEBUG("onIncomingInterest face=" << inFace.getId() <<
" interest=" << interest.getName());
const_cast<Interest&>(interest).setIncomingFaceId(inFace.getId());
++m_counters.getNInInterests();
// /localhost scope control
bool isViolatingLocalhost = !inFace.isLocal() &&
LOCALHOST_NAME.isPrefixOf(interest.getName());
if (isViolatingLocalhost) {
NFD_LOG_DEBUG("onIncomingInterest face=" << inFace.getId() <<
" interest=" << interest.getName() << " violates /localhost");
// (drop)
return;
}
// PIT insert
shared_ptr<pit::Entry> pitEntry = m_pit.insert(interest).first;
// detect duplicate Nonce
int dnw = pitEntry->findNonce(interest.getNonce(), inFace);
bool hasDuplicateNonce = (dnw != pit::DUPLICATE_NONCE_NONE) ||
m_deadNonceList.has(interest.getName(), interest.getNonce());
if (hasDuplicateNonce) {
// goto Interest loop pipeline
this->onInterestLoop(inFace, interest, pitEntry);
return;
}
// cancel unsatisfy & straggler timer
this->cancelUnsatisfyAndStragglerTimer(pitEntry);
// is pending?
const pit::InRecordCollection& inRecords = pitEntry->getInRecords();
bool isPending = inRecords.begin() != inRecords.end();
if (!isPending) {
// CS lookup
const Data* csMatch;
shared_ptr<Data> match;
if (m_csFromNdnSim == nullptr)
csMatch = m_cs.find(interest);
else {
match = m_csFromNdnSim->Lookup(interest.shared_from_this());
csMatch = match.get();
}
if (csMatch != 0) {
const_cast<Data*>(csMatch)->setIncomingFaceId(FACEID_CONTENT_STORE);
// XXX should we lookup PIT for other Interests that also match csMatch?
// invoke PIT satisfy callback
beforeSatisfyInterest(*pitEntry, *m_csFace, *csMatch);
this->dispatchToStrategy(pitEntry, bind(&Strategy::beforeSatisfyInterest, _1,
pitEntry, cref(*m_csFace), cref(*csMatch)));
// set PIT straggler timer
this->setStragglerTimer(pitEntry, true, csMatch->getFreshnessPeriod());
// goto outgoing Data pipeline
this->onOutgoingData(*csMatch, inFace);
return;
}
}
// insert InRecord
pitEntry->insertOrUpdateInRecord(inFace.shared_from_this(), interest);
// set PIT unsatisfy timer
this->setUnsatisfyTimer(pitEntry);
// FIB lookup
shared_ptr<fib::Entry> fibEntry = m_fib.findLongestPrefixMatch(*pitEntry);
// dispatch to strategy
this->dispatchToStrategy(pitEntry, bind(&Strategy::afterReceiveInterest, _1,
cref(inFace), cref(interest), fibEntry, pitEntry));
}
TEST_F(TestInterestMethods, EmptyNonce)
{
// make sure a freshly created interest has no nonce
Interest freshInterest = createFreshInterest();
ASSERT_TRUE(freshInterest.getNonce().isNull()) << "Freshly created interest should not have a nonce";
}
