def _makeInterestPacket():
subpackages = []
npackage = _makeNamePacket()
subpackages.append(npackage)
cbppackage = _getOptional(_makeCanBePrefix)
if cbppackage is not None:
subpackages.append(cbppackage)
fhpackage = _getOptional(_makeForwardingHint)
if fhpackage is not None:
subpackages.append(fhpackage)
mbfpackage = _getOptional(_makeMustBeFresh)
if mbfpackage is not None:
subpackages.append(mbfpackage)
nopackage = _getOptional(_makeNonce)
if nopackage is not None:
subpackages.append(nopackage)
ilpackage = _getOptional(_makeInterestLifetime)
if ilpackage is not None:
subpackages.append(ilpackage)
hplpackage = _getOptional(_makeHopLimit)
if hplpackage is not None:
subpackages.append(hplpackage)
ppackage = _getOptional(_makeParameters)
if ppackage is not None:
subpackages.append(ppackage)
length = _randomLength(len(subpackages))
ipackage = TLVPackage("Interest", enc.Tlv.Interest, length, subpackages)
return ipackage
def _makeCCNxName():
subpackages = []
for x in range(random.randint(0, 8)):
p = _makeBasicTLVPackage("Name Segment", 0x0001)
subpackages.append(p)
length = _randomLength(len(subpackages))
return TLVPackage("Name", 0x0000, length, subpackages)
def _makeLinkContent():
subpackages = []
for x in range(1, 6):
cpackage = _makeDelegation()
subpackages.append(cpackage)
length = _randomLength(len(subpackages))
return TLVPackage("LinkContent", enc.Tlv.ContentType, length, subpackages)
def _makeKeyLocator():
subpackages = []
r = random.randint(0, 1)
if r == 0:
subpackages.append(_makeNamePacket())
else:
subpackages.append(_makeKeyDigest())
return TLVPackage("KeyLocator", enc.Tlv.KeyLocator, _randomLength(1), subpackages)
def _makeDelegation():
subpackages = []
ppackage = _makePreference()
subpackages.append(ppackage)
npackage = _makeNamePacket()
subpackages.append(npackage)
length = _randomLength(len(subpackages))
return TLVPackage("Delegation", enc.Tlv.Link_Delegation, length, subpackages)
def _makeSignatureInfo():
subpackages = []
stpackage = _makeSignatureType()
subpackages.append(stpackage)
klPackage = _getOptional(_makeKeyLocator)
if klPackage is not None:
subpackages.append(klPackage)
length = _randomLength(len(subpackages))
return TLVPackage("SignatureInfo", enc.Tlv.SignatureInfo, length, subpackages)
def _makeCCNxContentObject():
subpackages = []
namep = _makeCCNxName()
subpackages.append(namep)
x = random.randint(0, 3)
if x % 2 is 1:
ptp = _makePayloadType()
subpackages.append(ptp)
if x > 1:
extp = _makeExpiriyTime()
subpackages.append(extp)
length = _randomLength(len(subpackages))
return TLVPackage("ContentOject", 0x0002, length, subpackages)
def _makeCCNxInterest():
subpackages = []
namep = _makeCCNxName()
subpackages.append(namep)
x = random.randint(0, 3)
if x % 2 is 1:
kidp = _makeKeyIdRestriciton()
subpackages.append(kidp)
if x > 1:
cohrp = _makeContentObjectHashRestriciton()
subpackages.append(cohrp)
length = _randomLength(len(subpackages))
return TLVPackage("Interest", 0x0001, length, subpackages)
def _makeMetaInfo():
subpackages = []
ctpackage = _getOptional(_makeContentType)
if ctpackage is not None:
subpackages.append(ctpackage)
fppackage = _getOptional(_makeFreshnessPeriod)
if (fppackage is not None):
subpackages.append(fppackage)
fbidpackage = _getOptional(_makeFinalBlockId)
if (fbidpackage is not None):
subpackages.append(fbidpackage)
length = _randomLength(len(subpackages))
return TLVPackage("MetaInfo", enc.Tlv.MetaInfo, length, subpackages)
def _makeLinkObject():
subpackages = []
npackage = _makeNamePacket()
subpackages.append(npackage)
mipackage = _makeMetaInfo()
subpackages.append(mipackage)
lcpackage = _makeLinkContent()
subpackages.append(lcpackage)
sipackage = _makeSignatureInfo()
subpackages.append(sipackage)
svpackage = _makeSignatureValue()
subpackages.append(svpackage)
length = _randomLength(len(subpackages))
linkObject = TLVPackage("LinkObject", enc.Tlv.Data, length, subpackages)
return linkObject
def _makeDataPacket():
subpackages = []
npackage = _makeNamePacket()
subpackages.append(npackage)
mipackage = _getOptional(_makeMetaInfo)
if mipackage is not None:
subpackages.append(mipackage)
cpackage = _getOptional(_makeContent)
if cpackage is not None:
subpackages.append(cpackage)
sipackage = _makeSignatureInfo()
subpackages.append(sipackage)
svpackage = _makeSignatureValue()
subpackages.append(svpackage)
length = _randomLength(len(subpackages))
datpackage = TLVPackage("Data", enc.Tlv.Data, length, subpackages)
return datpackage
def _makeExpiriyTime():
return TLVPackage("ExpiryTime", 0x0006, 8)
def _makeBasicTLVPackage(name, type, len=-1):
if len == -1:
len = _randomLength()
return TLVPackage(name, type, len)
def _makeForwardingHint():
subpackages = []
for x in range(1, 6):
subpackages.append(_makeDelegation())
length = _randomLength(len(subpackages))
return TLVPackage("ForwardingHint", enc.Tlv.ForwardingHint, length, subpackages)
def _makeNamePacket():
subpackages = []
for x in range(random.randint(0, 8)):
subpackages.append(_makeNameComponentPacket())
length = _randomLength(len(subpackages))
return TLVPackage("Name", enc.Tlv.Name, length, subpackages)
def _makeFinalBlockId():
ncpackage = _makeNameComponentPacket()
return TLVPackage("FinalBlockId", enc.Tlv.FinalBlockId, _randomLength(1), [ncpackage])