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net: Check against the current epoch's version when disconnecting peers

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This commit is contained in:
Jack Grigg
2018-09-12 10:17:33 +01:00
parent feee210af6
commit c861137624
1 changed files with 5 additions and 5 deletions
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10
src/main.cpp
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@@ -5149,15 +5149,15 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
// Disconnect existing peer connection when:
// 1. The version message has been received
// 2. Overwinter is active
// 3. Peer version is pre-Overwinter
else if (NetworkUpgradeActive(GetHeight(), chainparams.GetConsensus(), Consensus::UPGRADE_OVERWINTER)
&& (pfrom->nVersion < chainparams.GetConsensus().vUpgrades[Consensus::UPGRADE_OVERWINTER].nProtocolVersion))
// 2. Peer version is below the minimum version for the current epoch
else if (pfrom->nVersion < chainparams.GetConsensus().vUpgrades[
CurrentEpoch(GetHeight(), chainparams.GetConsensus())].nProtocolVersion)
{
LogPrintf("peer=%d using obsolete version %i; disconnecting\n", pfrom->id, pfrom->nVersion);
pfrom->PushMessage("reject", strCommand, REJECT_OBSOLETE,
strprintf("Version must be %d or greater",
chainparams.GetConsensus().vUpgrades[Consensus::UPGRADE_OVERWINTER].nProtocolVersion));
chainparams.GetConsensus().vUpgrades[
CurrentEpoch(GetHeight(), chainparams.GetConsensus())].nProtocolVersion));
pfrom->fDisconnect = true;
return false;
}