Add PE-side VFS bridge acceleration

1 files changed, 105 insertions, 0 deletions

diff --git a/third_party/minhook/src/trampoline.h b/third_party/minhook/src/trampoline.h
new file mode 100644
index 0000000..f7efb36
--- /dev/null
+++ b/third_party/minhook/src/trampoline.h
@@ -0,0 +1,105 @@
+/*
+ *  MinHook - The Minimalistic API Hooking Library for x64/x86
+ *  Copyright (C) 2009-2017 Tsuda Kageyu.
+ *  All rights reserved.
+ *
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions
+ *  are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ *  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ *  PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER
+ *  OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ *  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#pragma pack(push, 1)
+
+// Structs for writing x86/x64 instructions.
+
+// 8-bit relative jump.
+typedef struct _JMP_REL_SHORT
+{
+    UINT8  opcode;      // EB xx: JMP +2+xx
+    INT8   operand;     // Relative destination address
+} JMP_REL_SHORT, *PJMP_REL_SHORT;
+
+// 32-bit direct relative jump/call.
+typedef struct _JMP_REL
+{
+    UINT8  opcode;      // E9/E8 xxxxxxxx: JMP/CALL +5+xxxxxxxx
+    INT32  operand;     // Relative destination address
+} JMP_REL, *PJMP_REL, CALL_REL;
+
+// 64-bit indirect absolute jump.
+typedef struct _JMP_ABS
+{
+    UINT8  opcode0;     // FF25 00000000: JMP [+6]
+    UINT8  opcode1;
+    UINT32 dummy;
+    UINT64 address;     // Absolute destination address
+} JMP_ABS, *PJMP_ABS;
+
+// 64-bit indirect absolute call.
+typedef struct _CALL_ABS
+{
+    UINT8  opcode0;     // FF15 00000002: CALL [+6]
+    UINT8  opcode1;
+    UINT32 dummy0;
+    UINT8  dummy1;      // EB 08:         JMP +10
+    UINT8  dummy2;
+    UINT64 address;     // Absolute destination address
+} CALL_ABS;
+
+// 32-bit direct relative conditional jumps.
+typedef struct _JCC_REL
+{
+    UINT8  opcode0;     // 0F8* xxxxxxxx: J** +6+xxxxxxxx
+    UINT8  opcode1;
+    INT32  operand;     // Relative destination address
+} JCC_REL;
+
+// 64bit indirect absolute conditional jumps that x64 lacks.
+typedef struct _JCC_ABS
+{
+    UINT8  opcode;      // 7* 0E:         J** +16
+    UINT8  dummy0;
+    UINT8  dummy1;      // FF25 00000000: JMP [+6]
+    UINT8  dummy2;
+    UINT32 dummy3;
+    UINT64 address;     // Absolute destination address
+} JCC_ABS;
+
+#pragma pack(pop)
+
+typedef struct _TRAMPOLINE
+{
+    LPVOID pTarget;         // [In] Address of the target function.
+    LPVOID pDetour;         // [In] Address of the detour function.
+    LPVOID pTrampoline;     // [In] Buffer address for the trampoline and relay function.
+
+#if defined(_M_X64) || defined(__x86_64__)
+    LPVOID pRelay;          // [Out] Address of the relay function.
+#endif
+    BOOL   patchAbove;      // [Out] Should use the hot patch area?
+    UINT   nIP;             // [Out] Number of the instruction boundaries.
+    UINT8  oldIPs[8];       // [Out] Instruction boundaries of the target function.
+    UINT8  newIPs[8];       // [Out] Instruction boundaries of the trampoline function.
+} TRAMPOLINE, *PTRAMPOLINE;
+
+BOOL CreateTrampolineFunction(PTRAMPOLINE ct);