1
0
mirror of https://gitea.tendokyu.moe/self/even synced 2024-12-22 04:25:56 +01:00
even/even_ioctl.h

47 lines
2.4 KiB
C
Raw Normal View History

2024-03-30 07:28:40 +01:00
#ifndef _MY_IOCTL_H_
#define _MY_IOCTL_H_ 1
/*
METHOD_BUFFERED handles the copy_to_user/copy_from_user automagically for us, at the cost of some overhead
METHOD_OUT_DIRECT = no automagical copy, MDL set up for "Kernel_driver -> User_mode_app" direction
METHOD_IN_DIRECT = no automagical copy, MDL set up for "User_mode_app -> Kernel_driver" direction
METHOD_NEITHER = no automagical copy, no automagical MDL setup. Driver (ioctl code) must be guaranteed
to run in the context of the calling user-space thread and ask for the user->system
mapping itself, and its access to the buffer should be wrapped in a try/catch to handle
potential exceptions...
That's right, DIRECT IN/OUT are from the driver's point of view, relative to the user-space app!!!
Both the MSDN and the Coreproject.com article say so, the CodeProject article with added emphasis.
*/
/* CTL Codes above 0x800 are free for your custom use
Note: using METHOD_BUFFERED = we're lazy and we don't care about a bit of overhead */
#define IOCTL_CHECK_1 CTL_CODE(0xaa01, 0xe10, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_CHECK_2 CTL_CODE(0xaa01, 0xe30, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_CHECK_3 CTL_CODE(0xaa01, 0xe31, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_WRITE_PEB_1 CTL_CODE(0xaa01, 0xe20, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_WRITE_PEB_2 CTL_CODE(0xaa01, 0xe21, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_READ_PEB CTL_CODE(0xaa01, 0xe22, METHOD_BUFFERED, FILE_ANY_ACCESS)
struct even_ioctl_in_data
{
unsigned int offset;
char value[4];
};
struct even_ioctl_out_data
{
int result;
};
#define USE_EVEN_IOCTL_OUT_DATA(x) \
struct even_ioctl_out_data##x \
{ \
unsigned int result; \
char data[x * 4]; \
};
#endif /* _MY_IOCTL_H_ */
// vim: sw=4 et