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