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#pragma once
//
// Echo service
// GUID {33C7FF13-50B0-454A-8BEB-F73EED6C0AF9}
//
DEFINE_GUID(GUID_ECHO_SERVICE,
0x33c7ff13, 0x50b0, 0x454a, 0x8b, 0xeb, 0xf7, 0x3e, 0xed, 0x6c, 0xa, 0xf9);
//
// Copies the content of input buffer to output buffer
//
#define ECHO_SERVICE_ECHO 1
//
// Repeats the content of input buffer to output buffer
//
#define ECHO_SERVICE_REPEAT 2
//
// Copies the bytes of input buffer to output buffer in reverse order
//
#define ECHO_SERVICE_REVERSE 3
//
// Kernel memory service
// {D28698A4-3B07-4F34-B65E-AE3DA6ACF2AC}
//
DEFINE_GUID(GUID_KERNEL_MEMORY_SERVICE,
0xd28698a4, 0x3b07, 0x4f34, 0xb6, 0x5e, 0xae, 0x3d, 0xa6, 0xac, 0xf2, 0xac);
//
// Get a safe range of kernel address space that can be read from
//
// Input: None
// Output: KERNEL_MEMORY_SAFE_RANGE
//
typedef struct _KERNEL_MEMORY_SAFE_RANGE {
ULONG64 Base;
ULONG Length;
} KERNEL_MEMORY_SAFE_RANGE, *PKERNEL_MEMORY_SAFE_RANGE;
#define KERNEL_MEMORY_SERVICE_GET_SAFE_RANGE 1
//
// Write a byte to kernel address space
//
// Input: KERNEL_MEMORY_WRITE_BYTE
// Output: Previous UCHAR value at the address
//
typedef struct _KERNEL_MEMORY_WRITE_BYTE {
ULONG64 Address;
UCHAR Value;
} KERNEL_MEMORY_WRITE_BYTE, *PKERNEL_MEMORY_WRITE_BYTE;
#define KERNEL_MEMORY_SERVICE_WRITE_BYTE 2
//
// Read a byte from kernel address space
//
// Input: ULONG64 address of kernel memory to read
// Output: UCHAR
//
#define KERNEL_MEMORY_SERVICE_READ_BYTE 3
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