功能：完善通用云管工作台、审计与诊断能力

docs/evidence/linux-gpu-20261111/guest-local-response.py

@@ -0,0 +1,66 @@
+"""Run on box: XTest input to decoded marker. Excludes USB and scanout."""
+import ctypes as C
+import os
+import json
+import statistics
+import subprocess
+import time
+os.environ.setdefault('DISPLAY', ':0')
+x=C.CDLL('libX11.so.6'); t=C.CDLL('libXtst.so.6')
+x.XOpenDisplay.restype=C.c_void_p
+x.XDefaultRootWindow.argtypes=[C.c_void_p]; x.XDefaultRootWindow.restype=C.c_ulong
+x.XSync.argtypes=[C.c_void_p,C.c_int]
+x.XGetImage.argtypes=[C.c_void_p,C.c_ulong,C.c_int,C.c_int,C.c_uint,C.c_uint,C.c_ulong,C.c_int]; x.XGetImage.restype=C.c_void_p
+x.XGetPixel.argtypes=[C.c_void_p,C.c_int,C.c_int]; x.XGetPixel.restype=C.c_ulong
+x.XDestroyImage.argtypes=[C.c_void_p]
+x.XStringToKeysym.argtypes=[C.c_char_p]; x.XStringToKeysym.restype=C.c_ulong
+x.XKeysymToKeycode.argtypes=[C.c_void_p,C.c_ulong];x.XKeysymToKeycode.restype=C.c_uint
+t.XTestFakeMotionEvent.argtypes=[C.c_void_p,C.c_int,C.c_int,C.c_int,C.c_ulong]
+t.XTestFakeButtonEvent.argtypes=[C.c_void_p,C.c_uint,C.c_int,C.c_ulong]
+t.XTestFakeKeyEvent.argtypes=[C.c_void_p,C.c_uint,C.c_int,C.c_ulong]
+d=x.XOpenDisplay(None);assert d;root=x.XDefaultRootWindow(d)
+pid=os.getpid()
+
+def key(name):
+    code=x.XKeysymToKeycode(d,x.XStringToKeysym(name.encode()));assert code
+    t.XTestFakeKeyEvent(d,code,1,0);t.XTestFakeKeyEvent(d,code,0,0);x.XSync(d,0)
+def move(px,py):
+    t.XTestFakeMotionEvent(d,-1,px,py,0);x.XSync(d,0)
+def read():
+    im=x.XGetImage(d,root,40,1380,1320,1,0xffffffff,2);assert im
+    try:
+        def val(offset,n):
+            pixels=[x.XGetPixel(im,offset+20+i*40,0)&0xffffff for i in range(n)]
+            if any(0x404040<v<0xc0c0c0 for v in pixels):return -1
+            return sum((1<<i) for i,v in enumerate(pixels) if v>0xc0c0c0)
+        return val(0,16),val(760,8),val(1120,4)
+    finally:x.XDestroyImage(im)
+def await_marker(m,s):
+    deadline=time.monotonic()+4
+    while time.monotonic()<deadline:
+        seen,magic,mode=read()
+        if (seen,magic,mode)==(s,0x5a,m):return
+        time.sleep(.002)
+    raise AssertionError(('marker timeout',m,s,read()))
+def sample(m,s,action):
+    start=time.monotonic();action();await_marker(m,s);return (time.monotonic()-start)*1000
+def stats(a):
+    b=sorted(a);return dict(samples_ms=a,p50=statistics.median(b),p95=b[int(len(b)*.95)],maximum=max(b))
+
+result={'pid':pid,'method':'Guest XTest to local X11 screen marker; actual buttons/masked entry; submit has no backend; no USB/scanout'}
+for m in [1,2,3]:
+    move(300,300);time.sleep(.4);key('F'+str(m));await_marker(m,0)
+    values=[]
+    for i in range(1,31):
+        px=750 if i%2 else 1750
+        if m==1: action=lambda:move(px,550)
+        elif m==2:
+            move(px,550);time.sleep(.12)
+            def action():
+                t.XTestFakeButtonEvent(d,1,1,0);x.XSync(d,0);time.sleep(.04)
+                t.XTestFakeButtonEvent(d,1,0,0);x.XSync(d,0)
+        else:action=lambda:key('a')
+        values.append(sample(m,i,action));time.sleep(.12)
+    result[{1:'hover',2:'click_release',3:'masked_character'}[m]]=stats(values)
+    if m==3:result['synthetic_submit_ms']=sample(m,1030,lambda:key('Return'))
+print(json.dumps(result))