如何挂钩windows键盘ISR?
问题描述:
我想用下面的代码钩住键盘ISR,但我不能,因为DeviceIoControl API返回ERROR_INVALID_FUNCTION。这里是我的代码:如何挂钩windows键盘ISR?
invoke DefineDosDevice,[raw],filename1,devicename
lea rcx,[filename2]
invoke CreateFileA,rcx,GENERIC_WRITE,0,0,OPEN_EXISTING,0,0
MOV [HI8042KBDHOOKISR],RAX
MOV RAX,0
MOV RCX,sizeof._INTERNAL_I8042_START_INFORMATION
LEA RDI,[INTERNAL_I8042_START_INFORMATION]
REP STOSB
MOV RCX,sizeof._INTERNAL_I8042_START_INFORMATION
MOV [INTERNAL_I8042_START_INFORMATION.Size1],RCX
invoke DeviceIoControl,[HI8042KBDHOOKISR],[Intel8042],INTERNAL_I8042_START_INFORMATION,sizeof._INTERNAL_I8042_START_INFORMATION,INTERNAL_I8042_START_INFORMATION,sizeof._INTERNAL_I8042_START_INFORMATION,NIL,0
LEA RBX,[MYKBDISR]
MOV [INTERNAL_I8042_START_INFORMATION.InterruptObject],RBX
RET
MYKBDISR:
CALL GET_SCANCODE
...
section '.data' data writeable readable
devicename db '\Device\KeyboardClass0',0
filename1 db 'keyboard',0
filename2 db '\\.\keyboard',0
filename3 db '\\.\Keybd',0
raw dq 1
HI8042KBDHOOKISR dq 0
NIL dq 0
Intel8042 dq 0B3FCFh
看到代码并回答我:在上面的代码中我错了?为什么DeviceIoControl返回ERROR_INVALID_FUNCTION?
答
IOCTL_INTERNAL_I8042_KEYBOARD_START_INFORMATION
这是内部设备控制代码(IRP_MJ_INTERNAL_DEVICE_CONTROL
)。这种控制不能由DeviceIoControl
(仅发送IRP_MJ_DEVICE_CONTROL
)发送,完全来自用户模式。并且在用户模式下也不能处理中断。也被阅读此:
I8042prt创建键盘中断对象后同步发送此请求给设备 堆栈的顶部。
所以 - 不是你必须发送此请求,反之亦然 - 你必须是过滤器驱动程序,连接到键盘设备。并处理此请求