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feat (experimential\conf): Op Code Ack Hack Check

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New conf:
Anticheat.OpAckOrderHack = 1

This is experimental. It will run with just the new conf. This checks for the more advance hacks of op code manipulation sent to the server.
It will not alert the GMs and will not add to the collumn counts at the current moment. It will only log into the log file when the conf is enabled.
This is experimental until we get feed back on performance impact.
This commit is contained in:
MDIC
2022-08-18 12:59:04 -04:00
parent 9e9105080b
commit a4e1ef2feb
4 changed files with 111 additions and 1 deletions
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82
src/AnticheatMgr.cpp
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@@ -35,6 +35,9 @@ constexpr auto LANG_ANTICHEAT_IGNORECONTROL = 30089;
constexpr auto LANG_ANTICHEAT_DUEL = 30090;
constexpr auto LANG_ANTICHEAT_BG_EXPLOIT = 30091;
// Time between server sends acknowledgement, and client is actually acknowledged
constexpr auto ALLOWED_ACK_LAG = 2000;
enum Spells
{
SHACKLES = 38505,
@@ -46,6 +49,29 @@ enum Spells
AnticheatMgr::AnticheatMgr()
{
_opackorders =
{
{ SMSG_FORCE_WALK_SPEED_CHANGE, CMSG_FORCE_WALK_SPEED_CHANGE_ACK },
{ SMSG_FORCE_RUN_SPEED_CHANGE, CMSG_FORCE_RUN_SPEED_CHANGE_ACK },
{ SMSG_FORCE_RUN_BACK_SPEED_CHANGE, CMSG_FORCE_RUN_BACK_SPEED_CHANGE_ACK },
{ SMSG_FORCE_SWIM_SPEED_CHANGE, CMSG_FORCE_SWIM_SPEED_CHANGE_ACK },
{ SMSG_FORCE_SWIM_BACK_SPEED_CHANGE, CMSG_FORCE_SWIM_BACK_SPEED_CHANGE_ACK },
{ SMSG_FORCE_TURN_RATE_CHANGE, CMSG_FORCE_TURN_RATE_CHANGE_ACK },
{ SMSG_FORCE_PITCH_RATE_CHANGE, CMSG_FORCE_PITCH_RATE_CHANGE_ACK },
{ SMSG_FORCE_FLIGHT_SPEED_CHANGE, CMSG_FORCE_FLIGHT_SPEED_CHANGE_ACK },
{ SMSG_FORCE_FLIGHT_BACK_SPEED_CHANGE, CMSG_FORCE_FLIGHT_BACK_SPEED_CHANGE_ACK },
{ SMSG_FORCE_MOVE_ROOT, CMSG_FORCE_MOVE_ROOT_ACK },
{ SMSG_FORCE_MOVE_UNROOT, CMSG_FORCE_MOVE_UNROOT_ACK },
{ SMSG_MOVE_KNOCK_BACK, CMSG_MOVE_KNOCK_BACK_ACK },
{ SMSG_MOVE_FEATHER_FALL, SMSG_MOVE_NORMAL_FALL, CMSG_MOVE_FEATHER_FALL_ACK },
{ SMSG_MOVE_SET_HOVER, SMSG_MOVE_UNSET_HOVER, CMSG_MOVE_HOVER_ACK },
{ SMSG_MOVE_SET_CAN_FLY, SMSG_MOVE_UNSET_CAN_FLY, CMSG_MOVE_SET_CAN_FLY_ACK },
{ SMSG_MOVE_WATER_WALK, SMSG_MOVE_LAND_WALK, CMSG_MOVE_WATER_WALK_ACK },
{ SMSG_MOVE_SET_CAN_TRANSITION_BETWEEN_SWIM_AND_FLY, SMSG_MOVE_UNSET_CAN_TRANSITION_BETWEEN_SWIM_AND_FLY, CMSG_MOVE_SET_CAN_TRANSITION_BETWEEN_SWIM_AND_FLY_ACK },
{ SMSG_MOVE_GRAVITY_ENABLE, CMSG_MOVE_GRAVITY_ENABLE_ACK },
{ SMSG_MOVE_GRAVITY_DISABLE, CMSG_MOVE_GRAVITY_DISABLE_ACK },
{ SMSG_MOVE_SET_COLLISION_HGT, CMSG_MOVE_SET_COLLISION_HGT_ACK }
};
}
AnticheatMgr::~AnticheatMgr()
@@ -384,7 +410,7 @@ void AnticheatMgr::TeleportHackDetection(Player* player, MovementInfo movementIn
if (player->IsFalling() || (player->IsFalling() && player->IsMounted()))
return;
if (player->duel)
{
if ((xDiff >= 50.0f || yDiff >= 50.0f || (zDiff >= 10.0f && !player->IsFlying())) && !player->CanTeleport())
@@ -1226,6 +1252,60 @@ void AnticheatMgr::HandlePlayerLogout(Player* player)
m_Players.erase(player->GetGUID());
}
void AnticheatMgr::AckUpdate(Player* player, uint32 diff)
{
if (_updateCheckTimer <= diff)
{
DoActions(player);
_updateCheckTimer = 4000;
}
else
{
_updateCheckTimer -= diff;
}
}
void AnticheatMgr::DoActions(Player* player)
{
auto const now = getMSTime();
for (auto& order : _opackorders)
{
if (order.counter > 0 && order.lastRcvd < order.lastSent && (now - order.lastSent) > ALLOWED_ACK_LAG)
{
uint32 latency = 0;
latency = player->GetSession()->GetLatency();
LOG_INFO("anticheat.module", "Opcode Manipulation Hack detected player {} ({}) - Latency: {} ms", player->GetName(), player->GetGUID().ToString(), latency);
order.counter = 0;
}
}
}
void AnticheatMgr::OrderSent(WorldPacket const* data)
{
for (auto& order : _opackorders)
{
if (order.serverOpcode1 == data->GetOpcode() || order.serverOpcode2 == data->GetOpcode())
{
order.lastSent = getMSTime();
++order.counter;
break;
}
}
}
void AnticheatMgr::CheckForOrderAck(uint32 opcode)
{
for (auto& order : _opackorders)
{
if (order.clientResp == opcode)
{
--order.counter;
break;
}
}
}
void AnticheatMgr::SavePlayerData(Player* player)
{
AnticheatData playerData = m_Players[player->GetGUID()];