RakNET-Fix

Fix for raknet attack issues.

Credits

• Full credits to Dimmy UG and Benjes | Benjes - YT for working hard to find the solution, thanks also to this wonderful team that is Eagle Vision Brasil.
• I don't want credit for this, he deserves it so much.

Dependencies

• Raknet: https://github.com/katursis/Pawn.RakNet

Settings

• In raknet settings add this: InterceptIncomingRawPacket = true

Code

Method 1 [Recommended]

IRawPacket:20(playerid, BitStream:bs) {
    new packetid, rpcid, NumberOfBitsOfData;
    BS_ReadValue(bs, PR_UINT8, packetid, PR_UINT8, rpcid, PR_CUINT32, NumberOfBitsOfData);
    if (packetid == 40 || (NumberOfBitsOfData >= 0x1FFFFF || NumberOfBitsOfData <= 0x80000000 || NumberOfBitsOfData < 0)) {
        printf("Crasher Detected - RPCID: %d, NumberOfBitsOfData: %d", rpcid, NumberOfBitsOfData);
        BanEx(playerid, "Raknet Bot");
        return false;
    }
    return true;
}

OR

Method 2

IRawPacket:20(playerid, BitStream:bs) {
    new rpcid, numberOfBitsOfData;
    BS_ReadValue(bs, 
        PR_IGNORE_BITS, 8,
        PR_UINT8, rpcid,
        PR_UINT32, numberOfBitsOfData
    );

    new bits;
    BS_GetNumberOfBitsAllocated(bs, bits);

    new diff = GetDifferenceValue(bits, numberOfBitsOfData);
    if (numberOfBitsOfData > 8192 || diff > 512)
    {
        new blockIp[32];
        GetPlayerIp(playerid, blockIp, sizeof blockIp);

        printf("Blocked package: playerid: %d | rpcid: %d | bits used: %d | allocated bits: %d | diff: %d", playerid, rpcid, numberOfBitsOfData, bits, diff);
        BlockIpAddress(blockIp, 60000);
        return false;
    }

    return true;
}