forksand
/
usb-firewall-fork
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Remove jiggle detector as the constant-acceleration detector already

Browse Source 
does the same job.
USG_1.0
Robert Fisk 7 years ago
parent 84bd03b539
commit 0c3c3a033c
2 changed files with 11 additions and 58 deletions
Show Stats Download Patch File Download Diff File

16
Upstream/Inc/build_config.h
Unescape View File

@ -41,16 +41,15 @@
//Configure mouse bot detection here:
#ifdef CONFIG_MOUSE_BOT_DETECT_ENABLED
#define MOUSE_BOTDETECT_VELOCITY_MULTIPLIER 10
#define MOUSE_BOTDETECT_MOVEMENT_STOP_PERIODS 5
//-----------------------------------------------------------
//Adjust these thresholds first to tune mouse bot detection. Lower values = more sensitive
#define MOUSE_BOTDETECT_JUMP_VELOCITY_THRESHOLD (20 * MOUSE_BOTDETECT_VELOCITY_MULTIPLIER)
#define MOUSE_BOTDETECT_LOCKOUT_CONSTANT_ACCEL_COUNT 20 //20 is ok for most mice. But some weird mice generate longer sequences.
#define MOUSE_BOTDETECT_LOCKOUT_JIGGLE_BIN_THRESHOLD 4
#define MOUSE_BOTDETECT_JUMP_VELOCITY_THRESHOLD 20
#define MOUSE_BOTDETECT_LOCKOUT_CONSTANT_ACCEL_COUNT 30 //20 is ok for most mice. But some weird mice generate longer sequences.
//-----------------------------------------------------------
#define MOUSE_BOTDETECT_VELOCITY_MULTIPLIER 10
#define MOUSE_BOTDETECT_MOVEMENT_STOP_PERIODS 5
//Jump detection stuff
#define MOUSE_BOTDETECT_JUMP_MINIMUM_TIME 4
@ -58,11 +57,6 @@
#define MOUSE_BOTDETECT_VELOCITY_HISTORY_SIZE 12
#define MOUSE_BOTDETECT_VELOCITY_MATCH_BASE 256
#define MOUSE_BOTDETECT_VELOCITY_MATCH_ERROR 6
//Jiggle detection stuff
#define MOUSE_BOTDETECT_JIGGLE_BIN_WIDTH_MS 20 //20ms per bin
#define MOUSE_BOTDETECT_JIGGLE_BIN_COUNT 50 //50 bins at 20ms = 1 sec coverage, wrapped
#define MOUSE_BOTDETECT_JIGGLE_BIN_DIVIDER 4
#endif

49
Upstream/Src/upstream_hid_botdetect.c
Unescape View File

@ -65,13 +65,8 @@ volatile LockoutStateTypeDef LockoutState = LOCKOUT_STATE_INACTIVE;
int32_t PreviousSmoothedAcceleration = 0;
uint8_t ConstantAccelerationCounter = 0;
//Jiggle detection stuff
uint8_t MouseStopIntervalBinDrainDivideCount = 0;
uint8_t MouseStopIntervalBinArray[MOUSE_BOTDETECT_JIGGLE_BIN_COUNT] = {0};
//Debug:
uint8_t ConstantAccelerationCounterMax = 0;
uint8_t MouseStopIntervalBinArrayPeak = 0;
// uint8_t ConstantAccelerationCounterMax = 0;
static void Upstream_HID_BotDetectMouse_DoLockout(void);
#endif
@ -391,7 +386,6 @@ void Upstream_HID_BotDetectMouse(uint8_t* mouseInData)
{
uint32_t i;
uint32_t now = HAL_GetTick();
uint32_t moveDelay;
uint32_t velocity;
int8_t mouseX;
int8_t mouseY;
@ -407,41 +401,11 @@ void Upstream_HID_BotDetectMouse(uint8_t* mouseInData)
mouseY = mouseInData[2];
velocity = (sqrtf(((int32_t)mouseX * mouseX) +
((int32_t)mouseY * mouseY))) * MOUSE_BOTDETECT_VELOCITY_MULTIPLIER; //Multiply floating-point sqrt result to avoid integer rounding errors
moveDelay = now - LastMouseMoveTime;
//Did the mouse stop moving?
if (moveDelay > ((MOUSE_BOTDETECT_MOVEMENT_STOP_PERIODS * HID_FS_BINTERVAL) - (HID_FS_BINTERVAL / 2)))
{
//Jiggle detection
if (velocity != 0)
{
//Add stopped time to jiggle bins
moveDelay = moveDelay % (MOUSE_BOTDETECT_JIGGLE_BIN_WIDTH_MS * MOUSE_BOTDETECT_JIGGLE_BIN_COUNT); //Wrap stopped time into the array
MouseStopIntervalBinArray[(moveDelay / MOUSE_BOTDETECT_JIGGLE_BIN_WIDTH_MS)]++;
if (MouseStopIntervalBinArray[(moveDelay / MOUSE_BOTDETECT_JIGGLE_BIN_WIDTH_MS)] > MOUSE_BOTDETECT_LOCKOUT_JIGGLE_BIN_THRESHOLD)
{
Upstream_HID_BotDetectMouse_DoLockout();
}
//Debug:
if (MouseStopIntervalBinArray[(moveDelay / MOUSE_BOTDETECT_JIGGLE_BIN_WIDTH_MS)] > MouseStopIntervalBinArrayPeak)
{
MouseStopIntervalBinArrayPeak = MouseStopIntervalBinArray[(moveDelay / MOUSE_BOTDETECT_JIGGLE_BIN_WIDTH_MS)];
}
//Drain jiggle bins at specified rate
MouseStopIntervalBinDrainDivideCount++;
if (MouseStopIntervalBinDrainDivideCount >= MOUSE_BOTDETECT_JIGGLE_BIN_DIVIDER)
{
MouseStopIntervalBinDrainDivideCount = 0;
for (i = 0; i < MOUSE_BOTDETECT_JIGGLE_BIN_COUNT; i++)
if ((now - LastMouseMoveTime) > ((MOUSE_BOTDETECT_MOVEMENT_STOP_PERIODS * HID_FS_BINTERVAL) - (HID_FS_BINTERVAL / 2)))
{
if (MouseStopIntervalBinArray[i] > 0) MouseStopIntervalBinArray[i]--;
}
}
}
//Jump detection
if (MouseIsMoving)
{
@ -458,7 +422,7 @@ void Upstream_HID_BotDetectMouse(uint8_t* mouseInData)
{
//Jump detection
LastMouseMoveTime = now;
if ((MouseIsMoving == 0) && (velocity > MOUSE_BOTDETECT_JUMP_VELOCITY_THRESHOLD))
if ((MouseIsMoving == 0) && (velocity > (MOUSE_BOTDETECT_JUMP_VELOCITY_THRESHOLD * MOUSE_BOTDETECT_VELOCITY_MULTIPLIER)))
{
MouseIsMoving = 1;
LastMouseMoveBeginTime = now;
@ -499,7 +463,7 @@ void Upstream_HID_BotDetectMouse(uint8_t* mouseInData)
}
//Debug:
if (ConstantAccelerationCounter > ConstantAccelerationCounterMax) ConstantAccelerationCounterMax = ConstantAccelerationCounter;
// if (ConstantAccelerationCounter > ConstantAccelerationCounterMax) ConstantAccelerationCounterMax = ConstantAccelerationCounter;
}
else
{
@ -548,11 +512,6 @@ static void Upstream_HID_BotDetectMouse_DoLockout(void)
}
ConstantAccelerationCounter = 0;
for (i = 0; i < MOUSE_BOTDETECT_JIGGLE_BIN_COUNT; i++)
{
MouseStopIntervalBinArray[i] = 0;
}
TemporaryLockoutTimeMs = 0;
LockoutState = LOCKOUT_STATE_TEMPORARY_ACTIVE;
LED_SetState(LED_STATUS_FLASH_BOTDETECT);

Write Preview
Loading…
Cancel
Save