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Overwinter peer management and network handshaking.

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Implements ZIP 201.
This commit is contained in:
Simon
2018-02-20 11:03:40 -08:00
parent 2423a40c08
commit 72b2192950
4 changed files with 61 additions and 1 deletions
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29
src/main.cpp
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@@ -4721,6 +4721,19 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
return false;
}
// When Overwinter is active, reject incoming connections from non-Overwinter nodes
const Consensus::Params& params = Params().GetConsensus();
if (NetworkUpgradeActive(GetHeight(), params, Consensus::UPGRADE_OVERWINTER)
&& pfrom->nVersion < params.vUpgrades[Consensus::UPGRADE_OVERWINTER].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));
pfrom->fDisconnect = true;
return false;
}
if (pfrom->nVersion == 10300)
pfrom->nVersion = 300;
if (!vRecv.empty())
@@ -4839,6 +4852,22 @@ 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))
{
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));
pfrom->fDisconnect = true;
return false;
}
else if (strCommand == "addr")
{
vector<CAddress> vAddr;