LBRYCommunity/lbrycrd
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Post-feb20 simplifications

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Now the entire network upgraded to (initial) protocol version 209,
crtainl simplifications in the source code are possible.
This commit is contained in:
Pieter Wuille 2012-02-20 01:33:31 +01:00
parent 8a949dd6c3
commit 18c0fa97d0
3 changed files with 27 additions and 39 deletions
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42
src/main.cpp
View file

@ -2100,18 +2100,24 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
CAddress addrFrom; CAddress addrFrom;
uint64 nNonce = 1; uint64 nNonce = 1;
vRecv >> pfrom->nVersion >> pfrom->nServices >> nTime >> addrMe; vRecv >> pfrom->nVersion >> pfrom->nServices >> nTime >> addrMe;
if (pfrom->nVersion < 209)
{
// Since Februari 20, 2012, the protocol is initiated at version 209,
// and earlier versions are no longer supported
printf("partner %s using obsolete version %i; disconnecting\n", pfrom->addr.ToString().c_str(), pfrom->nVersion);
pfrom->fDisconnect = true;
return false;
}
if (pfrom->nVersion == 10300) if (pfrom->nVersion == 10300)
pfrom->nVersion = 300; pfrom->nVersion = 300;
if (pfrom->nVersion >= 106 && !vRecv.empty()) if (!vRecv.empty())
vRecv >> addrFrom >> nNonce; vRecv >> addrFrom >> nNonce;
if (pfrom->nVersion >= 106 && !vRecv.empty()) if (!vRecv.empty())
vRecv >> pfrom->strSubVer; vRecv >> pfrom->strSubVer;
if (pfrom->nVersion >= 209 && !vRecv.empty()) if (!vRecv.empty())
vRecv >> pfrom->nStartingHeight; vRecv >> pfrom->nStartingHeight;
if (pfrom->nVersion == 0)
return false;
// Disconnect if we connected to ourself // Disconnect if we connected to ourself
if (nNonce == nLocalHostNonce && nNonce > 1) if (nNonce == nLocalHostNonce && nNonce > 1)
{ {
@ -2129,11 +2135,8 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
AddTimeData(pfrom->addr, nTime); AddTimeData(pfrom->addr, nTime);
// Change version // Change version
if (pfrom->nVersion >= 209) pfrom->PushMessage("verack");
pfrom->PushMessage("verack");
pfrom->vSend.SetVersion(min(pfrom->nVersion, PROTOCOL_VERSION)); pfrom->vSend.SetVersion(min(pfrom->nVersion, PROTOCOL_VERSION));
if (pfrom->nVersion < 209)
pfrom->vRecv.SetVersion(min(pfrom->nVersion, PROTOCOL_VERSION));
if (!pfrom->fInbound) if (!pfrom->fInbound)
{ {
@ -2197,8 +2200,6 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv)
vRecv >> vAddr; vRecv >> vAddr;
// Don't want addr from older versions unless seeding // Don't want addr from older versions unless seeding
if (pfrom->nVersion < 209)
return true;
if (pfrom->nVersion < 31402 && mapAddresses.size() > 1000) if (pfrom->nVersion < 31402 && mapAddresses.size() > 1000)
return true; return true;
if (vAddr.size() > 1000) if (vAddr.size() > 1000)
@ -2660,17 +2661,14 @@ bool ProcessMessages(CNode* pfrom)
} }
// Checksum // Checksum
if (vRecv.GetVersion() >= 209) uint256 hash = Hash(vRecv.begin(), vRecv.begin() + nMessageSize);
unsigned int nChecksum = 0;
memcpy(&nChecksum, &hash, sizeof(nChecksum));
if (nChecksum != hdr.nChecksum)
{ {
uint256 hash = Hash(vRecv.begin(), vRecv.begin() + nMessageSize); printf("ProcessMessage(%s, %u bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
unsigned int nChecksum = 0; strCommand.c_str(), nMessageSize, nChecksum, hdr.nChecksum);
memcpy(&nChecksum, &hash, sizeof(nChecksum)); continue;
if (nChecksum != hdr.nChecksum)
{
printf("ProcessMessage(%s, %u bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
strCommand.c_str(), nMessageSize, nChecksum, hdr.nChecksum);
continue;
}
} }
// Copy message to its own buffer // Copy message to its own buffer

23
src/net.h
View file

@ -166,15 +166,9 @@ public:
nServices = 0; nServices = 0;
hSocket = hSocketIn; hSocket = hSocketIn;
vSend.SetType(SER_NETWORK); vSend.SetType(SER_NETWORK);
vSend.SetVersion(0);
vRecv.SetType(SER_NETWORK); vRecv.SetType(SER_NETWORK);
vRecv.SetVersion(0); vSend.SetVersion(209);
// Version 0.2 obsoletes 20 Feb 2012 vRecv.SetVersion(209);
if (GetTime() > 1329696000)
{
vSend.SetVersion(209);
vRecv.SetVersion(209);
}
nLastSend = 0; nLastSend = 0;
nLastRecv = 0; nLastRecv = 0;
nLastSendEmpty = GetTime(); nLastSendEmpty = GetTime();
@ -333,14 +327,11 @@ public:
memcpy((char*)&vSend[nHeaderStart] + offsetof(CMessageHeader, nMessageSize), &nSize, sizeof(nSize)); memcpy((char*)&vSend[nHeaderStart] + offsetof(CMessageHeader, nMessageSize), &nSize, sizeof(nSize));
// Set the checksum // Set the checksum
if (vSend.GetVersion() >= 209) uint256 hash = Hash(vSend.begin() + nMessageStart, vSend.end());
{ unsigned int nChecksum = 0;
uint256 hash = Hash(vSend.begin() + nMessageStart, vSend.end()); memcpy(&nChecksum, &hash, sizeof(nChecksum));
unsigned int nChecksum = 0; assert(nMessageStart - nHeaderStart >= offsetof(CMessageHeader, nChecksum) + sizeof(nChecksum));
memcpy(&nChecksum, &hash, sizeof(nChecksum)); memcpy((char*)&vSend[nHeaderStart] + offsetof(CMessageHeader, nChecksum), &nChecksum, sizeof(nChecksum));
assert(nMessageStart - nHeaderStart >= offsetof(CMessageHeader, nChecksum) + sizeof(nChecksum));
memcpy((char*)&vSend[nHeaderStart] + offsetof(CMessageHeader, nChecksum), &nChecksum, sizeof(nChecksum));
}
if (fDebug) { if (fDebug) {
printf("(%d bytes)\n", nSize); printf("(%d bytes)\n", nSize);

1
src/protocol.h
View file

@ -45,7 +45,6 @@ class CMessageHeader
READWRITE(FLATDATA(pchMessageStart)); READWRITE(FLATDATA(pchMessageStart));
READWRITE(FLATDATA(pchCommand)); READWRITE(FLATDATA(pchCommand));
READWRITE(nMessageSize); READWRITE(nMessageSize);
if (nVersion >= 209)
READWRITE(nChecksum); READWRITE(nChecksum);
) )