CMNAuth Class Reference

This class handles the p2p message MNAUTH. More...

#include <mnauth.h>

Collaboration diagram for CMNAuth:

Public Member Functions
template<typename Stream , typename Operation >
void	SerializationOp (Stream &s, Operation ser_action)

Static Public Member Functions
static void	PushMNAUTH (CNode *pnode, CConnman &connman)
static void	ProcessMessage (CNode *pnode, const std::string &strCommand, CDataStream &vRecv, CConnman &connman)
static void	NotifyMasternodeListChanged (bool undo, const CDeterministicMNList &oldMNList, const CDeterministicMNListDiff &diff)

Public Attributes
uint256	proRegTxHash
CBLSSignature	sig
	ADD_SERIALIZE_METHODS

Detailed Description

This class handles the p2p message MNAUTH.

MNAUTH is sent directly after VERACK and authenticates the sender as a masternode. It is only sent when the sender is actually a masternode.

MNAUTH signs a challenge that was previously sent via VERSION. The challenge is signed differently depending on the connection being an inbound or outbound connection, which avoids MITM of this form: node1 <- Eve -> node2 while still allowing: node1 -> Eve -> node2

This is fine as we only use this mechanism for DoS protection. It allows us to keep masternode connections open for a very long time without evicting the connections when inbound connection limits are hit (non-MNs will then be evicted).

If we ever want to add transfer of sensitive data, THIS AUTHENTICATION MECHANISM IS NOT ENOUGH!! We'd need to implement proper encryption for these connections first.

Definition at line 36 of file mnauth.h.

Member Function Documentation

NotifyMasternodeListChanged()

void CMNAuth::NotifyMasternodeListChanged ( bool  undo, const CDeterministicMNList &  oldMNList, const CDeterministicMNListDiff &  diff  )

static

Definition at line 194 of file mnauth.cpp.

References CNode::cs_mnauth, CNode::fDisconnect, CDeterministicMNStateDiff::Field_pubKeyOperator, g_connman, CNode::GetId(), CDeterministicMNList::GetMN(), base_blob< BITS >::IsNull(), LOCK, LogPrint, BCLog::NET_NETCONN, CDeterministicMNListDiff::removedMns, base_blob< BITS >::ToString(), CDeterministicMNListDiff::updatedMNs, CNode::verifiedProRegTxHash, and CNode::verifiedPubKeyHash.

Referenced by CDSNotificationInterface::NotifyMasternodeListChanged().

ProcessMessage()

void CMNAuth::ProcessMessage ( CNode *  pnode, const std::string &  strCommand, CDataStream &  vRecv, CConnman &  connman  )

static

Definition at line 57 of file mnauth.cpp.

References cs_main, CNode::cs_mnauth, deterministicMNManager, CNode::fDisconnect, CNode::fInbound, CNode::fMasternodeProbe, CConnman::ForEachNode(), gArgs, GetAdjustedTime(), ArgsManager::GetArg(), CNode::GetId(), CMasternodeMetaMan::GetMetaInfo(), ArgsManager::IsArgSet(), CMasternodeSync::IsBlockchainSynced(), base_blob< BITS >::IsNull(), LOCK, LogPrint, CBaseChainParams::MAIN, masternodeSync, Misbehaving(), mmetaman, NetMsgType::MNAUTH, MNAUTH_NODE_VER_VERSION, BCLog::NET_NETCONN, NODE_BLOOM, NODE_NETWORK, CNode::nServices, CNode::nVersion, Params(), PROTOCOL_VERSION, CNode::sentMNAuthChallenge, SerializeHash(), CNode::verifiedProRegTxHash, and CNode::verifiedPubKeyHash.

Referenced by ProcessMessage().

PushMNAUTH()

void CMNAuth::PushMNAUTH ( CNode *  pnode, CConnman &  connman  )

static

Definition at line 19 of file mnauth.cpp.

References activeMasternodeInfo, CActiveMasternodeInfo::blsKeyOperator, CActiveMasternodeInfo::blsPubKeyOperator, CNode::cs_mnauth, CNode::fInbound, fMasternodeMode, gArgs, ArgsManager::GetArg(), CNode::GetId(), CNode::GetSendVersion(), ArgsManager::IsArgSet(), base_blob< BITS >::IsNull(), LOCK, LogPrint, CBaseChainParams::MAIN, NetMsgType::MNAUTH, MNAUTH_NODE_VER_VERSION, BCLog::NET_NETCONN, CChainParams::NetworkIDString(), CNode::nVersion, Params(), proRegTxHash, PROTOCOL_VERSION, CActiveMasternodeInfo::proTxHash, CConnman::PushMessage(), CNode::receivedMNAuthChallenge, SerializeHash(), and sig.

Referenced by ProcessMessage().

SerializationOp()

template<typename Stream , typename Operation >

void CMNAuth::SerializationOp ( Stream &  s, Operation  ser_action  )

inline

Definition at line 46 of file mnauth.h.

References proRegTxHash, READWRITE, and sig.

Member Data Documentation

ADD_SERIALIZE_METHODS

CMNAuth::ADD_SERIALIZE_METHODS

Definition at line 43 of file mnauth.h.

proRegTxHash

uint256 CMNAuth::proRegTxHash

Definition at line 39 of file mnauth.h.

Referenced by PushMNAUTH(), and SerializationOp().

sig

CBLSSignature CMNAuth::sig

Definition at line 40 of file mnauth.h.

Referenced by PushMNAUTH(), and SerializationOp().

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The documentation for this class was generated from the following files:

• src/evo/mnauth.h
• src/evo/mnauth.cpp