gfwleak/zhangyang-zerotierone
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Rate gate ECHO per Path instead of per Peer

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This commit is contained in:
Joseph Henry
2022-02-21 14:37:39 -08:00
parent 1b0c183913
commit 5e13b42abc
4 changed files with 18 additions and 15 deletions
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17
node/Path.hpp
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@@ -83,6 +83,7 @@ public:
_lastOut(0),
_lastIn(0),
_lastTrustEstablishedPacketReceived(0),
_lastEchoRequestReceived(0),
_localSocket(-1),
_latency(0xffff),
_addr(),
@@ -93,6 +94,7 @@ public:
_lastOut(0),
_lastIn(0),
_lastTrustEstablishedPacketReceived(0),
_lastEchoRequestReceived(0),
_localSocket(localSocket),
_latency(0xffff),
_addr(addr),
@@ -266,6 +268,18 @@ public:
*/
inline int64_t lastTrustEstablishedPacketReceived() const { return _lastTrustEstablishedPacketReceived; }
/**
* Rate limit gate for inbound ECHO requests
*/
inline bool rateGateEchoRequest(const int64_t now)
{
if ((now - _lastEchoRequestReceived) >= (ZT_PEER_GENERAL_RATE_LIMIT / 16)) {
_lastEchoRequestReceived = now;
return true;
}
return false;
}
void *_bondingMetricPtr;
private:
@@ -273,6 +287,9 @@ private:
volatile int64_t _lastOut;
volatile int64_t _lastIn;
volatile int64_t _lastTrustEstablishedPacketReceived;
int64_t _lastEchoRequestReceived;
int64_t _localSocket;
volatile unsigned int _latency;
InetAddress _addr;