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[Cheat Detection] Anti-Cheat reimplementation (#1434)

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* [Cheat Detection] Anti-Cheat reimplementation

* minor patch fixes

* ceiling to server side runspeed

Warp(LT) was picking up a bunch of expected 6.2 but it was reported back as 6.5, this should help reduce the amount of false positives we get

* use ceil instead of std::ceilf for linux

* boat false positive fix

* stopping the double detection

* fixes and cleanup

* auto merge tricked me...

* dummy divide by 0 checks

this should prevent anyone from setting Zone:MQWarpDetectionDistanceFactor to 0 and causing a crash.

* Formatting

* encapsulation to its own class and clean up

* more detections

* typo

* OP_UnderWorld implmentation

* Update client_packet.h

* Syntax changes, formatting, cleanup

* preventing crashes due to invalid packet size

* typos and clearer logic

* seperated the catagory for cheats

* Updated MQGhost for more detail

Co-authored-by: Akkadius <akkadius1@gmail.com>
This commit is contained in:
Dencelle
2021-08-31 01:08:31 -05:00
committed by GitHub
parent 26299354b6
commit 7b069dcf20
25 changed files with 664 additions and 26 deletions
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zone/zoning.cpp
+22 -4
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@@ -99,9 +99,14 @@ void Client::Handle_OP_ZoneChange(const EQApplicationPacket *app) {
//unable to find a zone point... is there anything else
//that can be a valid un-zolicited zone request?
//Todo cheat detection
Message(Chat::Red, "Invalid unsolicited zone request.");
LogError("Zoning [{}]: Invalid unsolicited zone request to zone id [{}]", GetName(), target_zone_id);
if (GetBindZoneID() == target_zone_id) {
cheat_manager.CheatDetected(MQGate, glm::vec3(zc->x, zc->y, zc->z));
}
else {
cheat_manager.CheatDetected(MQZone, glm::vec3(zc->x, zc->y, zc->z));
}
SendZoneCancel(zc);
return;
}
@@ -134,7 +139,12 @@ void Client::Handle_OP_ZoneChange(const EQApplicationPacket *app) {
//then we assume this is invalid.
if(!zone_point || zone_point->target_zone_id != target_zone_id) {
LogError("Zoning [{}]: Invalid unsolicited zone request to zone id [{}]", GetName(), target_zone_id);
//todo cheat detection
if (GetBindZoneID() == target_zone_id) {
cheat_manager.CheatDetected(MQGate, glm::vec3(zc->x, zc->y, zc->z));
}
else {
cheat_manager.CheatDetected(MQZone, glm::vec3(zc->x, zc->y, zc->z));
}
SendZoneCancel(zc);
return;
}
@@ -282,7 +292,12 @@ void Client::Handle_OP_ZoneChange(const EQApplicationPacket *app) {
//for now, there are no other cases...
//could not find a valid reason for them to be zoning, stop it.
//todo cheat detection
if (GetBindZoneID() == target_zone_id) {
cheat_manager.CheatDetected(MQGate, glm::vec3(zc->x, zc->y, zc->z));
}
else {
cheat_manager.CheatDetected(MQZone, glm::vec3(zc->x, zc->y, zc->z));
}
LogError("Zoning [{}]: Invalid unsolicited zone request to zone id [{}]. Not near a zone point", GetName(), target_zone_name);
SendZoneCancel(zc);
return;
@@ -379,6 +394,7 @@ void Client::Handle_OP_ZoneChange(const EQApplicationPacket *app) {
void Client::SendZoneCancel(ZoneChange_Struct *zc) {
//effectively zone them right back to where they were
//unless we find a better way to stop the zoning process.
cheat_manager.SetExemptStatus(Port, true);
EQApplicationPacket *outapp = nullptr;
outapp = new EQApplicationPacket(OP_ZoneChange, sizeof(ZoneChange_Struct));
ZoneChange_Struct *zc2 = (ZoneChange_Struct*)outapp->pBuffer;
@@ -397,7 +413,7 @@ void Client::SendZoneCancel(ZoneChange_Struct *zc) {
void Client::SendZoneError(ZoneChange_Struct *zc, int8 err)
{
LogError("Zone [{}] is not available because target wasn't found or character insufficent level", zc->zoneID);
cheat_manager.SetExemptStatus(Port, true);
EQApplicationPacket *outapp = nullptr;
outapp = new EQApplicationPacket(OP_ZoneChange, sizeof(ZoneChange_Struct));
ZoneChange_Struct *zc2 = (ZoneChange_Struct*)outapp->pBuffer;
@@ -667,6 +683,8 @@ void Client::ZonePC(uint32 zoneID, uint32 instance_id, float x, float y, float z
pShortZoneName = ZoneName(zoneID);
content_db.GetZoneLongName(pShortZoneName, &pZoneName);
cheat_manager.SetExemptStatus(Port, true);
if(!pZoneName) {
Message(Chat::Red, "Invalid zone number specified");
safe_delete_array(pZoneName);