1 files changed, 96 insertions, 0 deletions
diff --git a/driver/memmod/syscall_windows_32.go b/driver/memmod/syscall_windows_32.go
new file mode 100644
index 00000000..dde8b360
--- /dev/null
+++ b/driver/memmod/syscall_windows_32.go
@@ -0,0 +1,96 @@
+//go:build (windows && 386) || (windows && arm)
+
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2017-2022 WireGuard LLC. All Rights Reserved.
+ */
+
+package memmod
+
+// Optional header format
+type IMAGE_OPTIONAL_HEADER struct {
+	Magic                       uint16
+	MajorLinkerVersion          uint8
+	MinorLinkerVersion          uint8
+	SizeOfCode                  uint32
+	SizeOfInitializedData       uint32
+	SizeOfUninitializedData     uint32
+	AddressOfEntryPoint         uint32
+	BaseOfCode                  uint32
+	BaseOfData                  uint32
+	ImageBase                   uintptr
+	SectionAlignment            uint32
+	FileAlignment               uint32
+	MajorOperatingSystemVersion uint16
+	MinorOperatingSystemVersion uint16
+	MajorImageVersion           uint16
+	MinorImageVersion           uint16
+	MajorSubsystemVersion       uint16
+	MinorSubsystemVersion       uint16
+	Win32VersionValue           uint32
+	SizeOfImage                 uint32
+	SizeOfHeaders               uint32
+	CheckSum                    uint32
+	Subsystem                   uint16
+	DllCharacteristics          uint16
+	SizeOfStackReserve          uintptr
+	SizeOfStackCommit           uintptr
+	SizeOfHeapReserve           uintptr
+	SizeOfHeapCommit            uintptr
+	LoaderFlags                 uint32
+	NumberOfRvaAndSizes         uint32
+	DataDirectory               [IMAGE_NUMBEROF_DIRECTORY_ENTRIES]IMAGE_DATA_DIRECTORY
+}
+
+const IMAGE_ORDINAL_FLAG uintptr = 0x80000000
+
+type IMAGE_LOAD_CONFIG_DIRECTORY struct {
+	Size                                     uint32
+	TimeDateStamp                            uint32
+	MajorVersion                             uint16
+	MinorVersion                             uint16
+	GlobalFlagsClear                         uint32
+	GlobalFlagsSet                           uint32
+	CriticalSectionDefaultTimeout            uint32
+	DeCommitFreeBlockThreshold               uint32
+	DeCommitTotalFreeThreshold               uint32
+	LockPrefixTable                          uint32
+	MaximumAllocationSize                    uint32
+	VirtualMemoryThreshold                   uint32
+	ProcessHeapFlags                         uint32
+	ProcessAffinityMask                      uint32
+	CSDVersion                               uint16
+	DependentLoadFlags                       uint16
+	EditList                                 uint32
+	SecurityCookie                           uint32
+	SEHandlerTable                           uint32
+	SEHandlerCount                           uint32
+	GuardCFCheckFunctionPointer              uint32
+	GuardCFDispatchFunctionPointer           uint32
+	GuardCFFunctionTable                     uint32
+	GuardCFFunctionCount                     uint32
+	GuardFlags                               uint32
+	CodeIntegrity                            IMAGE_LOAD_CONFIG_CODE_INTEGRITY
+	GuardAddressTakenIatEntryTable           uint32
+	GuardAddressTakenIatEntryCount           uint32
+	GuardLongJumpTargetTable                 uint32
+	GuardLongJumpTargetCount                 uint32
+	DynamicValueRelocTable                   uint32
+	CHPEMetadataPointer                      uint32
+	GuardRFFailureRoutine                    uint32
+	GuardRFFailureRoutineFunctionPointer     uint32
+	DynamicValueRelocTableOffset             uint32
+	DynamicValueRelocTableSection            uint16
+	Reserved2                                uint16
+	GuardRFVerifyStackPointerFunctionPointer uint32
+	HotPatchTableOffset                      uint32
+	Reserved3                                uint32
+	EnclaveConfigurationPointer              uint32
+	VolatileMetadataPointer                  uint32
+	GuardEHContinuationTable                 uint32
+	GuardEHContinuationCount                 uint32
+	GuardXFGCheckFunctionPointer             uint32
+	GuardXFGDispatchFunctionPointer          uint32
+	GuardXFGTableDispatchFunctionPointer     uint32
+	CastGuardOsDeterminedFailureMode         uint32
+}