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WSAImpersonateSocketPeer

関数

ソケットの通信相手のセキュリティコンテキストを偽装する。

DLLfwpuclnt.dll呼出規約winapiSetLastErrorあり対応OSWindows Vista 以降

シグネチャ

// fwpuclnt.dll
#include <windows.h>

INT WSAImpersonateSocketPeer(
    SOCKET Socket,
    const SOCKADDR* PeerAddr,   // optional
    DWORD PeerAddrLen
);

パラメーター

名前	型	方向
Socket	SOCKET	in
PeerAddr	SOCKADDR*	inoptional
PeerAddrLen	DWORD	in

戻り値の型: INT

各言語での呼び出し定義

// fwpuclnt.dll
#include <windows.h>

INT WSAImpersonateSocketPeer(
    SOCKET Socket,
    const SOCKADDR* PeerAddr,   // optional
    DWORD PeerAddrLen
);

[DllImport("fwpuclnt.dll", SetLastError = true, ExactSpelling = true)]
static extern int WSAImpersonateSocketPeer(
    UIntPtr Socket,   // SOCKET
    IntPtr PeerAddr,   // SOCKADDR* optional
    uint PeerAddrLen   // DWORD
);

<DllImport("fwpuclnt.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WSAImpersonateSocketPeer(
    Socket As UIntPtr,   ' SOCKET
    PeerAddr As IntPtr,   ' SOCKADDR* optional
    PeerAddrLen As UInteger   ' DWORD
) As Integer
End Function

' Socket : SOCKET
' PeerAddr : SOCKADDR* optional
' PeerAddrLen : DWORD
Declare PtrSafe Function WSAImpersonateSocketPeer Lib "fwpuclnt" ( _
    ByVal Socket As LongPtr, _
    ByVal PeerAddr As LongPtr, _
    ByVal PeerAddrLen As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WSAImpersonateSocketPeer = ctypes.windll.fwpuclnt.WSAImpersonateSocketPeer
WSAImpersonateSocketPeer.restype = ctypes.c_int
WSAImpersonateSocketPeer.argtypes = [
    ctypes.c_size_t,  # Socket : SOCKET
    ctypes.c_void_p,  # PeerAddr : SOCKADDR* optional
    wintypes.DWORD,  # PeerAddrLen : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('fwpuclnt.dll')
WSAImpersonateSocketPeer = Fiddle::Function.new(
  lib['WSAImpersonateSocketPeer'],
  [
    Fiddle::TYPE_UINTPTR_T,  # Socket : SOCKET
    Fiddle::TYPE_VOIDP,  # PeerAddr : SOCKADDR* optional
    -Fiddle::TYPE_INT,  # PeerAddrLen : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "fwpuclnt")]
extern "system" {
    fn WSAImpersonateSocketPeer(
        Socket: usize,  // SOCKET
        PeerAddr: *const SOCKADDR,  // SOCKADDR* optional
        PeerAddrLen: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("fwpuclnt.dll", SetLastError = true)]
public static extern int WSAImpersonateSocketPeer(UIntPtr Socket, IntPtr PeerAddr, uint PeerAddrLen);
"@
$api = Add-Type -MemberDefinition $sig -Name 'fwpuclnt_WSAImpersonateSocketPeer' -Namespace Win32 -PassThru
# $api::WSAImpersonateSocketPeer(Socket, PeerAddr, PeerAddrLen)

#uselib "fwpuclnt.dll"
#func global WSAImpersonateSocketPeer "WSAImpersonateSocketPeer" sptr, sptr, sptr
; WSAImpersonateSocketPeer Socket, varptr(PeerAddr), PeerAddrLen   ; 戻り値は stat
; Socket : SOCKET -> "sptr"
; PeerAddr : SOCKADDR* optional -> "sptr"
; PeerAddrLen : DWORD -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

出力引数:

#uselib "fwpuclnt.dll"
#cfunc global WSAImpersonateSocketPeer "WSAImpersonateSocketPeer" sptr, var, int
; res = WSAImpersonateSocketPeer(Socket, PeerAddr, PeerAddrLen)
; Socket : SOCKET -> "sptr"
; PeerAddr : SOCKADDR* optional -> "var"
; PeerAddrLen : DWORD -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "fwpuclnt.dll"
#cfunc global WSAImpersonateSocketPeer "WSAImpersonateSocketPeer" sptr, sptr, int
; res = WSAImpersonateSocketPeer(Socket, varptr(PeerAddr), PeerAddrLen)
; Socket : SOCKET -> "sptr"
; PeerAddr : SOCKADDR* optional -> "sptr"
; PeerAddrLen : DWORD -> "int"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; INT WSAImpersonateSocketPeer(SOCKET Socket, SOCKADDR* PeerAddr, DWORD PeerAddrLen)
#uselib "fwpuclnt.dll"
#cfunc global WSAImpersonateSocketPeer "WSAImpersonateSocketPeer" intptr, var, int
; res = WSAImpersonateSocketPeer(Socket, PeerAddr, PeerAddrLen)
; Socket : SOCKET -> "intptr"
; PeerAddr : SOCKADDR* optional -> "var"
; PeerAddrLen : DWORD -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; INT WSAImpersonateSocketPeer(SOCKET Socket, SOCKADDR* PeerAddr, DWORD PeerAddrLen)
#uselib "fwpuclnt.dll"
#cfunc global WSAImpersonateSocketPeer "WSAImpersonateSocketPeer" intptr, intptr, int
; res = WSAImpersonateSocketPeer(Socket, varptr(PeerAddr), PeerAddrLen)
; Socket : SOCKET -> "intptr"
; PeerAddr : SOCKADDR* optional -> "intptr"
; PeerAddrLen : DWORD -> "int"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	fwpuclnt = windows.NewLazySystemDLL("fwpuclnt.dll")
	procWSAImpersonateSocketPeer = fwpuclnt.NewProc("WSAImpersonateSocketPeer")
)

// Socket (SOCKET), PeerAddr (SOCKADDR* optional), PeerAddrLen (DWORD)
r1, _, err := procWSAImpersonateSocketPeer.Call(
	uintptr(Socket),
	uintptr(PeerAddr),
	uintptr(PeerAddrLen),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function WSAImpersonateSocketPeer(
  Socket: NativeUInt;   // SOCKET
  PeerAddr: Pointer;   // SOCKADDR* optional
  PeerAddrLen: DWORD   // DWORD
): Integer; stdcall;
  external 'fwpuclnt.dll' name 'WSAImpersonateSocketPeer';

result := DllCall("fwpuclnt\WSAImpersonateSocketPeer"
    , "UPtr", Socket   ; SOCKET
    , "Ptr", PeerAddr   ; SOCKADDR* optional
    , "UInt", PeerAddrLen   ; DWORD
    , "Int")   ; return: INT

●WSAImpersonateSocketPeer(Socket, PeerAddr, PeerAddrLen) = DLL("fwpuclnt.dll", "int WSAImpersonateSocketPeer(int, void*, dword)")
# 呼び出し: WSAImpersonateSocketPeer(Socket, PeerAddr, PeerAddrLen)
# Socket : SOCKET -> "int"
# PeerAddr : SOCKADDR* optional -> "void*"
# PeerAddrLen : DWORD -> "dword"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。