diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/net/packetlimiter.cpp | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/src/net/packetlimiter.cpp b/src/net/packetlimiter.cpp index b99081714..92640bc99 100644 --- a/src/net/packetlimiter.cpp +++ b/src/net/packetlimiter.cpp @@ -33,13 +33,21 @@ #include "debug.h" +// Client-side packet limiter +// The time limits here are all in units of 10ms (SDL timer tick). +// See MILLISECONDS_IN_A_TICK. + struct PacketLimit final { A_DEFAULT_COPY(PacketLimit) + // timer tick of the first packet in a burst int lastTime; + // number of basic ticks in one packet burst int timeLimit; + // number of packets inside an active packet burst int cnt; + // max number of packets allowed inside a packet burst int cntLimit; }; @@ -53,6 +61,13 @@ void PacketLimiter::initPacketLimiter() // here i setting packet limits. but current server is broken, // and this limits may not help. + // see also: server-side logic in: + // TMWA: src/map/clif.cpp (clif_check_packet_flood) + // Herc: src/map/clif.c (clif_parse) + // src/common/socket.c (do_sockets(func_parse)) + // (herc has no per-packet limits, just a per-connection + // fairness system.) + mPacketLimits[CAST_SIZE( PacketType::PACKET_CHAT)].timeLimit = 10 + 5; mPacketLimits[CAST_SIZE( @@ -268,10 +283,9 @@ bool PacketLimiter::checkPackets(const PacketTypeT type) const int cntLimit = limit.cntLimit; if (lastTime > tick_time) - { + { // integer wrap-around check // instance()->mPacketLimits[type].lastTime = time; // instance()->mPacketLimits[type].cnt = 0; - return true; } else if (lastTime + timeLimit > time) @@ -308,7 +322,7 @@ bool PacketLimiter::limitPackets(const PacketTypeT type) const int cntLimit = pack.cntLimit; if (lastTime > tick_time) - { + { // integer wrap-around check pack.lastTime = time; pack.cnt = 0; return true; |