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net: Check against the current epoch's version when rejecting nodes

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This commit is contained in:
Jack Grigg
2018-09-12 09:27:28 +01:00
parent d2b5a2daeb
commit ebf4c0671e
1 changed files with 4 additions and 4 deletions
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8
src/main.cpp
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@@ -5016,15 +5016,15 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
return false;
}
// When Overwinter is active, reject incoming connections from non-Overwinter nodes
// Reject incoming connections from nodes that don't know about the current epoch
const Consensus::Params& params = Params().GetConsensus();
if (NetworkUpgradeActive(GetHeight(), params, Consensus::UPGRADE_OVERWINTER)
&& pfrom->nVersion < params.vUpgrades[Consensus::UPGRADE_OVERWINTER].nProtocolVersion)
auto currentEpoch = CurrentEpoch(GetHeight(), params);
if (pfrom->nVersion < params.vUpgrades[currentEpoch].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",
params.vUpgrades[Consensus::UPGRADE_OVERWINTER].nProtocolVersion));
params.vUpgrades[currentEpoch].nProtocolVersion));
pfrom->fDisconnect = true;
return false;
}