DragonX/dragonx
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 2 Wiki Activity

Feeler connections ported from BTC core, eclipse attack mitigation

Browse Source
This commit is contained in:
Duke Leto
2021-02-28 23:28:49 -05:00
parent cadab16cdb
commit ea2b68c1d3
4 changed files with 126 additions and 43 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/net.h
View File

@@ -82,10 +82,13 @@ static const size_t SETASKFOR_MAX_SZ = 2 * MAX_INV_SZ;
static const unsigned int DEFAULT_MAX_PEER_CONNECTIONS = 384;
/** The period before a network upgrade activates, where connections to upgrading peers are preferred (in blocks). */
static const int NETWORK_UPGRADE_PEER_PREFERENCE_BLOCK_PERIOD = 24 * 24 * 3;
/** Run the feeler connection loop once every 120 seconds. **/
static const int FEELER_INTERVAL = 120;
unsigned int ReceiveFloodSize();
unsigned int SendBufferSize();
int64_t PoissonNextSend(int64_t now, int average_interval_seconds);
void AddOneShot(const std::string& strDest);
void AddressCurrentlyConnected(const CService& addr);
CNode* FindNode(const CNetAddr& ip);
@@ -93,7 +96,7 @@ CNode* FindNode(const CSubNet& subNet);
CNode* FindNode(const std::string& addrName);
CNode* FindNode(const CService& ip);
CNode* ConnectNode(CAddress addrConnect, const char *pszDest = NULL);
bool OpenNetworkConnection(const CAddress& addrConnect, CSemaphoreGrant *grantOutbound = NULL, const char *strDest = NULL, bool fOneShot = false);
bool OpenNetworkConnection(const CAddress& addrConnect, CSemaphoreGrant *grantOutbound = NULL, const char *strDest = NULL, bool fOneShot = false, bool fFeeler = false);
unsigned short GetListenPort();
bool BindListenPort(const CService &bindAddr, std::string& strError, bool fAllowlisted = false);
void StartNode(boost::thread_group& threadGroup, CScheduler& scheduler);
@@ -220,7 +223,8 @@ public:
int nStartingHeight;
uint64_t nSendBytes;
uint64_t nRecvBytes;
bool fAllowlisted;
bool fAllowlisted; // If true this node bypasses DoS ban limits
bool fFeeler; // If true this node is being used as a short lived feeler.
double dPingTime;
double dPingWait;
std::string addrLocal;
@@ -228,7 +232,7 @@ public:
CAddress addr;
// Bind address of our side of the connection
// CAddress addrBind; // https://github.com/bitcoin/bitcoin/commit/a7e3c2814c8e49197889a4679461be42254e5c51
uint32_t m_mapped_as;
uint32_t m_mapped_as; // Mapped ASN for this address
};
@@ -273,9 +277,6 @@ public:
};
/** Information about a peer */
class CNode
{
@@ -323,6 +324,7 @@ public:
bool fOneShot;
bool fClient;
bool fInbound;
bool fFeeler;
bool fNetworkNode;
bool fSuccessfullyConnected;
bool fDisconnect;