AccessCheck

関数

セキュリティ記述子に対しトークンのアクセス権を検査する。

DLLADVAPI32.dll呼出規約winapiSetLastErrorあり対応OSWindows XP 以降

シグネチャ

// ADVAPI32.dll
#include <windows.h>

BOOL AccessCheck(
    PSECURITY_DESCRIPTOR pSecurityDescriptor,
    HANDLE ClientToken,
    DWORD DesiredAccess,
    GENERIC_MAPPING* GenericMapping,
    PRIVILEGE_SET* PrivilegeSet,   // optional
    DWORD* PrivilegeSetLength,
    DWORD* GrantedAccess,
    BOOL* AccessStatus
);

パラメーター

名前	型	方向
pSecurityDescriptor	PSECURITY_DESCRIPTOR	in
ClientToken	HANDLE	in
DesiredAccess	DWORD	in
GenericMapping	GENERIC_MAPPING*	in
PrivilegeSet	PRIVILEGE_SET*	outoptional
PrivilegeSetLength	DWORD*	inout
GrantedAccess	DWORD*	out
AccessStatus	BOOL*	out

戻り値の型: BOOL

各言語での呼び出し定義

// ADVAPI32.dll
#include <windows.h>

BOOL AccessCheck(
    PSECURITY_DESCRIPTOR pSecurityDescriptor,
    HANDLE ClientToken,
    DWORD DesiredAccess,
    GENERIC_MAPPING* GenericMapping,
    PRIVILEGE_SET* PrivilegeSet,   // optional
    DWORD* PrivilegeSetLength,
    DWORD* GrantedAccess,
    BOOL* AccessStatus
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ADVAPI32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool AccessCheck(
    IntPtr pSecurityDescriptor,   // PSECURITY_DESCRIPTOR
    IntPtr ClientToken,   // HANDLE
    uint DesiredAccess,   // DWORD
    IntPtr GenericMapping,   // GENERIC_MAPPING*
    IntPtr PrivilegeSet,   // PRIVILEGE_SET* optional, out
    ref uint PrivilegeSetLength,   // DWORD* in/out
    out uint GrantedAccess,   // DWORD* out
    out int AccessStatus   // BOOL* out
);

<DllImport("ADVAPI32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function AccessCheck(
    pSecurityDescriptor As IntPtr,   ' PSECURITY_DESCRIPTOR
    ClientToken As IntPtr,   ' HANDLE
    DesiredAccess As UInteger,   ' DWORD
    GenericMapping As IntPtr,   ' GENERIC_MAPPING*
    PrivilegeSet As IntPtr,   ' PRIVILEGE_SET* optional, out
    ByRef PrivilegeSetLength As UInteger,   ' DWORD* in/out
    <Out> ByRef GrantedAccess As UInteger,   ' DWORD* out
    <Out> ByRef AccessStatus As Integer   ' BOOL* out
) As Boolean
End Function

' pSecurityDescriptor : PSECURITY_DESCRIPTOR
' ClientToken : HANDLE
' DesiredAccess : DWORD
' GenericMapping : GENERIC_MAPPING*
' PrivilegeSet : PRIVILEGE_SET* optional, out
' PrivilegeSetLength : DWORD* in/out
' GrantedAccess : DWORD* out
' AccessStatus : BOOL* out
Declare PtrSafe Function AccessCheck Lib "advapi32" ( _
    ByVal pSecurityDescriptor As LongPtr, _
    ByVal ClientToken As LongPtr, _
    ByVal DesiredAccess As Long, _
    ByVal GenericMapping As LongPtr, _
    ByVal PrivilegeSet As LongPtr, _
    ByRef PrivilegeSetLength As Long, _
    ByRef GrantedAccess As Long, _
    ByRef AccessStatus 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

AccessCheck = ctypes.windll.advapi32.AccessCheck
AccessCheck.restype = wintypes.BOOL
AccessCheck.argtypes = [
    wintypes.HANDLE,  # pSecurityDescriptor : PSECURITY_DESCRIPTOR
    wintypes.HANDLE,  # ClientToken : HANDLE
    wintypes.DWORD,  # DesiredAccess : DWORD
    ctypes.c_void_p,  # GenericMapping : GENERIC_MAPPING*
    ctypes.c_void_p,  # PrivilegeSet : PRIVILEGE_SET* optional, out
    ctypes.POINTER(wintypes.DWORD),  # PrivilegeSetLength : DWORD* in/out
    ctypes.POINTER(wintypes.DWORD),  # GrantedAccess : DWORD* out
    ctypes.c_void_p,  # AccessStatus : BOOL* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
AccessCheck = Fiddle::Function.new(
  lib['AccessCheck'],
  [
    Fiddle::TYPE_VOIDP,  # pSecurityDescriptor : PSECURITY_DESCRIPTOR
    Fiddle::TYPE_VOIDP,  # ClientToken : HANDLE
    -Fiddle::TYPE_INT,  # DesiredAccess : DWORD
    Fiddle::TYPE_VOIDP,  # GenericMapping : GENERIC_MAPPING*
    Fiddle::TYPE_VOIDP,  # PrivilegeSet : PRIVILEGE_SET* optional, out
    Fiddle::TYPE_VOIDP,  # PrivilegeSetLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # GrantedAccess : DWORD* out
    Fiddle::TYPE_VOIDP,  # AccessStatus : BOOL* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "advapi32")]
extern "system" {
    fn AccessCheck(
        pSecurityDescriptor: *mut core::ffi::c_void,  // PSECURITY_DESCRIPTOR
        ClientToken: *mut core::ffi::c_void,  // HANDLE
        DesiredAccess: u32,  // DWORD
        GenericMapping: *mut GENERIC_MAPPING,  // GENERIC_MAPPING*
        PrivilegeSet: *mut PRIVILEGE_SET,  // PRIVILEGE_SET* optional, out
        PrivilegeSetLength: *mut u32,  // DWORD* in/out
        GrantedAccess: *mut u32,  // DWORD* out
        AccessStatus: *mut i32  // BOOL* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ADVAPI32.dll", SetLastError = true)]
public static extern bool AccessCheck(IntPtr pSecurityDescriptor, IntPtr ClientToken, uint DesiredAccess, IntPtr GenericMapping, IntPtr PrivilegeSet, ref uint PrivilegeSetLength, out uint GrantedAccess, out int AccessStatus);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_AccessCheck' -Namespace Win32 -PassThru
# $api::AccessCheck(pSecurityDescriptor, ClientToken, DesiredAccess, GenericMapping, PrivilegeSet, PrivilegeSetLength, GrantedAccess, AccessStatus)

#uselib "ADVAPI32.dll"
#func global AccessCheck "AccessCheck" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; AccessCheck pSecurityDescriptor, ClientToken, DesiredAccess, varptr(GenericMapping), varptr(PrivilegeSet), varptr(PrivilegeSetLength), varptr(GrantedAccess), AccessStatus   ; 戻り値は stat
; pSecurityDescriptor : PSECURITY_DESCRIPTOR -> "sptr"
; ClientToken : HANDLE -> "sptr"
; DesiredAccess : DWORD -> "sptr"
; GenericMapping : GENERIC_MAPPING* -> "sptr"
; PrivilegeSet : PRIVILEGE_SET* optional, out -> "sptr"
; PrivilegeSetLength : DWORD* in/out -> "sptr"
; GrantedAccess : DWORD* out -> "sptr"
; AccessStatus : BOOL* out -> "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 "ADVAPI32.dll"
#cfunc global AccessCheck "AccessCheck" sptr, sptr, int, var, var, var, var, int
; res = AccessCheck(pSecurityDescriptor, ClientToken, DesiredAccess, GenericMapping, PrivilegeSet, PrivilegeSetLength, GrantedAccess, AccessStatus)
; pSecurityDescriptor : PSECURITY_DESCRIPTOR -> "sptr"
; ClientToken : HANDLE -> "sptr"
; DesiredAccess : DWORD -> "int"
; GenericMapping : GENERIC_MAPPING* -> "var"
; PrivilegeSet : PRIVILEGE_SET* optional, out -> "var"
; PrivilegeSetLength : DWORD* in/out -> "var"
; GrantedAccess : DWORD* out -> "var"
; AccessStatus : BOOL* out -> "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 "ADVAPI32.dll"
#cfunc global AccessCheck "AccessCheck" sptr, sptr, int, sptr, sptr, sptr, sptr, int
; res = AccessCheck(pSecurityDescriptor, ClientToken, DesiredAccess, varptr(GenericMapping), varptr(PrivilegeSet), varptr(PrivilegeSetLength), varptr(GrantedAccess), AccessStatus)
; pSecurityDescriptor : PSECURITY_DESCRIPTOR -> "sptr"
; ClientToken : HANDLE -> "sptr"
; DesiredAccess : DWORD -> "int"
; GenericMapping : GENERIC_MAPPING* -> "sptr"
; PrivilegeSet : PRIVILEGE_SET* optional, out -> "sptr"
; PrivilegeSetLength : DWORD* in/out -> "sptr"
; GrantedAccess : DWORD* out -> "sptr"
; AccessStatus : BOOL* out -> "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:

; BOOL AccessCheck(PSECURITY_DESCRIPTOR pSecurityDescriptor, HANDLE ClientToken, DWORD DesiredAccess, GENERIC_MAPPING* GenericMapping, PRIVILEGE_SET* PrivilegeSet, DWORD* PrivilegeSetLength, DWORD* GrantedAccess, BOOL* AccessStatus)
#uselib "ADVAPI32.dll"
#cfunc global AccessCheck "AccessCheck" intptr, intptr, int, var, var, var, var, int
; res = AccessCheck(pSecurityDescriptor, ClientToken, DesiredAccess, GenericMapping, PrivilegeSet, PrivilegeSetLength, GrantedAccess, AccessStatus)
; pSecurityDescriptor : PSECURITY_DESCRIPTOR -> "intptr"
; ClientToken : HANDLE -> "intptr"
; DesiredAccess : DWORD -> "int"
; GenericMapping : GENERIC_MAPPING* -> "var"
; PrivilegeSet : PRIVILEGE_SET* optional, out -> "var"
; PrivilegeSetLength : DWORD* in/out -> "var"
; GrantedAccess : DWORD* out -> "var"
; AccessStatus : BOOL* out -> "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。; BOOL AccessCheck(PSECURITY_DESCRIPTOR pSecurityDescriptor, HANDLE ClientToken, DWORD DesiredAccess, GENERIC_MAPPING* GenericMapping, PRIVILEGE_SET* PrivilegeSet, DWORD* PrivilegeSetLength, DWORD* GrantedAccess, BOOL* AccessStatus)
#uselib "ADVAPI32.dll"
#cfunc global AccessCheck "AccessCheck" intptr, intptr, int, intptr, intptr, intptr, intptr, int
; res = AccessCheck(pSecurityDescriptor, ClientToken, DesiredAccess, varptr(GenericMapping), varptr(PrivilegeSet), varptr(PrivilegeSetLength), varptr(GrantedAccess), AccessStatus)
; pSecurityDescriptor : PSECURITY_DESCRIPTOR -> "intptr"
; ClientToken : HANDLE -> "intptr"
; DesiredAccess : DWORD -> "int"
; GenericMapping : GENERIC_MAPPING* -> "intptr"
; PrivilegeSet : PRIVILEGE_SET* optional, out -> "intptr"
; PrivilegeSetLength : DWORD* in/out -> "intptr"
; GrantedAccess : DWORD* out -> "intptr"
; AccessStatus : BOOL* out -> "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 (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procAccessCheck = advapi32.NewProc("AccessCheck")
)

// pSecurityDescriptor (PSECURITY_DESCRIPTOR), ClientToken (HANDLE), DesiredAccess (DWORD), GenericMapping (GENERIC_MAPPING*), PrivilegeSet (PRIVILEGE_SET* optional, out), PrivilegeSetLength (DWORD* in/out), GrantedAccess (DWORD* out), AccessStatus (BOOL* out)
r1, _, err := procAccessCheck.Call(
	uintptr(pSecurityDescriptor),
	uintptr(ClientToken),
	uintptr(DesiredAccess),
	uintptr(GenericMapping),
	uintptr(PrivilegeSet),
	uintptr(PrivilegeSetLength),
	uintptr(GrantedAccess),
	uintptr(AccessStatus),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function AccessCheck(
  pSecurityDescriptor: THandle;   // PSECURITY_DESCRIPTOR
  ClientToken: THandle;   // HANDLE
  DesiredAccess: DWORD;   // DWORD
  GenericMapping: Pointer;   // GENERIC_MAPPING*
  PrivilegeSet: Pointer;   // PRIVILEGE_SET* optional, out
  PrivilegeSetLength: Pointer;   // DWORD* in/out
  GrantedAccess: Pointer;   // DWORD* out
  AccessStatus: Pointer   // BOOL* out
): BOOL; stdcall;
  external 'ADVAPI32.dll' name 'AccessCheck';

result := DllCall("ADVAPI32\AccessCheck"
    , "Ptr", pSecurityDescriptor   ; PSECURITY_DESCRIPTOR
    , "Ptr", ClientToken   ; HANDLE
    , "UInt", DesiredAccess   ; DWORD
    , "Ptr", GenericMapping   ; GENERIC_MAPPING*
    , "Ptr", PrivilegeSet   ; PRIVILEGE_SET* optional, out
    , "Ptr", PrivilegeSetLength   ; DWORD* in/out
    , "Ptr", GrantedAccess   ; DWORD* out
    , "Ptr", AccessStatus   ; BOOL* out
    , "Int")   ; return: BOOL

●AccessCheck(pSecurityDescriptor, ClientToken, DesiredAccess, GenericMapping, PrivilegeSet, PrivilegeSetLength, GrantedAccess, AccessStatus) = DLL("ADVAPI32.dll", "bool AccessCheck(void*, void*, dword, void*, void*, void*, void*, void*)")
# 呼び出し: AccessCheck(pSecurityDescriptor, ClientToken, DesiredAccess, GenericMapping, PrivilegeSet, PrivilegeSetLength, GrantedAccess, AccessStatus)
# pSecurityDescriptor : PSECURITY_DESCRIPTOR -> "void*"
# ClientToken : HANDLE -> "void*"
# DesiredAccess : DWORD -> "dword"
# GenericMapping : GENERIC_MAPPING* -> "void*"
# PrivilegeSet : PRIVILEGE_SET* optional, out -> "void*"
# PrivilegeSetLength : DWORD* in/out -> "void*"
# GrantedAccess : DWORD* out -> "void*"
# AccessStatus : BOOL* out -> "void*"
# 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)。