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net: remove now-unused ssSend and Fuzz

This commit is contained in:
Cory Fields 2016-09-30 15:03:57 -04:00 committed by Pieter Wuille
parent 5c2169cc3f
commit 440f1d3e4c
2 changed files with 1 additions and 41 deletions
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38
src/net.cpp
View File

@ -1063,7 +1063,7 @@ void CConnman::ThreadSocketHandler()
BOOST_FOREACH(CNode* pnode, vNodesCopy) BOOST_FOREACH(CNode* pnode, vNodesCopy)
{ {
if (pnode->fDisconnect || if (pnode->fDisconnect ||
(pnode->GetRefCount() <= 0 && pnode->vRecvMsg.empty() && pnode->nSendSize == 0 && pnode->ssSend.empty())) (pnode->GetRefCount() <= 0 && pnode->vRecvMsg.empty() && pnode->nSendSize == 0))
{ {
// remove from vNodes // remove from vNodes
vNodes.erase(remove(vNodes.begin(), vNodes.end(), pnode), vNodes.end()); vNodes.erase(remove(vNodes.begin(), vNodes.end(), pnode), vNodes.end());
@ -2482,46 +2482,10 @@ int CConnman::GetBestHeight() const
return nBestHeight.load(std::memory_order_acquire); return nBestHeight.load(std::memory_order_acquire);
} }
void CNode::Fuzz(int nChance)
{
if (!fSuccessfullyConnected) return; // Don't fuzz initial handshake
if (GetRand(nChance) != 0) return; // Fuzz 1 of every nChance messages
switch (GetRand(3))
{
case 0:
// xor a random byte with a random value:
if (!ssSend.empty()) {
CDataStream::size_type pos = GetRand(ssSend.size());
ssSend[pos] ^= (unsigned char)(GetRand(256));
}
break;
case 1:
// delete a random byte:
if (!ssSend.empty()) {
CDataStream::size_type pos = GetRand(ssSend.size());
ssSend.erase(ssSend.begin()+pos);
}
break;
case 2:
// insert a random byte at a random position
{
CDataStream::size_type pos = GetRand(ssSend.size());
char ch = (char)GetRand(256);
ssSend.insert(ssSend.begin()+pos, ch);
}
break;
}
// Chance of more than one change half the time:
// (more changes exponentially less likely):
Fuzz(2);
}
unsigned int CConnman::GetReceiveFloodSize() const { return nReceiveFloodSize; } unsigned int CConnman::GetReceiveFloodSize() const { return nReceiveFloodSize; }
unsigned int CConnman::GetSendBufferSize() const{ return nSendBufferMaxSize; } unsigned int CConnman::GetSendBufferSize() const{ return nSendBufferMaxSize; }
CNode::CNode(NodeId idIn, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn, SOCKET hSocketIn, const CAddress& addrIn, uint64_t nKeyedNetGroupIn, uint64_t nLocalHostNonceIn, const std::string& addrNameIn, bool fInboundIn) : CNode::CNode(NodeId idIn, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn, SOCKET hSocketIn, const CAddress& addrIn, uint64_t nKeyedNetGroupIn, uint64_t nLocalHostNonceIn, const std::string& addrNameIn, bool fInboundIn) :
ssSend(SER_NETWORK, INIT_PROTO_VERSION),
addr(addrIn), addr(addrIn),
fInbound(fInboundIn), fInbound(fInboundIn),
id(idIn), id(idIn),

4
src/net.h
View File

@ -593,7 +593,6 @@ public:
ServiceFlags nServices; ServiceFlags nServices;
ServiceFlags nServicesExpected; ServiceFlags nServicesExpected;
SOCKET hSocket; SOCKET hSocket;
CDataStream ssSend;
size_t nSendSize; // total size of all vSendMsg entries size_t nSendSize; // total size of all vSendMsg entries
size_t nSendOffset; // offset inside the first vSendMsg already sent size_t nSendOffset; // offset inside the first vSendMsg already sent
uint64_t nSendBytes; uint64_t nSendBytes;
@ -645,9 +644,6 @@ protected:
mapMsgCmdSize mapSendBytesPerMsgCmd; mapMsgCmdSize mapSendBytesPerMsgCmd;
mapMsgCmdSize mapRecvBytesPerMsgCmd; mapMsgCmdSize mapRecvBytesPerMsgCmd;
// Basic fuzz-testing
void Fuzz(int nChance); // modifies ssSend
public: public:
uint256 hashContinue; uint256 hashContinue;
int nStartingHeight; int nStartingHeight;