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CertGetCertificateChain

関数

証明書から信頼ルートまでの証明書チェーンを構築する。

DLLCRYPT32.dll呼出規約winapiSetLastErrorあり対応OSWindows XP 以降

シグネチャ

// CRYPT32.dll
#include <windows.h>

BOOL CertGetCertificateChain(
    HCERTCHAINENGINE hChainEngine,   // optional
    const CERT_CONTEXT* pCertContext,
    FILETIME* pTime,   // optional
    HCERTSTORE hAdditionalStore,   // optional
    CERT_CHAIN_PARA* pChainPara,
    DWORD dwFlags,
    void* pvReserved,   // optional
    CERT_CHAIN_CONTEXT** ppChainContext
);

パラメーター

名前	型	方向
hChainEngine	HCERTCHAINENGINE	inoptional
pCertContext	CERT_CONTEXT*	in
pTime	FILETIME*	inoptional
hAdditionalStore	HCERTSTORE	inoptional
pChainPara	CERT_CHAIN_PARA*	in
dwFlags	DWORD	in
pvReserved	void*	optional
ppChainContext	CERT_CHAIN_CONTEXT**	out

戻り値の型: BOOL

各言語での呼び出し定義

// CRYPT32.dll
#include <windows.h>

BOOL CertGetCertificateChain(
    HCERTCHAINENGINE hChainEngine,   // optional
    const CERT_CONTEXT* pCertContext,
    FILETIME* pTime,   // optional
    HCERTSTORE hAdditionalStore,   // optional
    CERT_CHAIN_PARA* pChainPara,
    DWORD dwFlags,
    void* pvReserved,   // optional
    CERT_CHAIN_CONTEXT** ppChainContext
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool CertGetCertificateChain(
    IntPtr hChainEngine,   // HCERTCHAINENGINE optional
    IntPtr pCertContext,   // CERT_CONTEXT*
    IntPtr pTime,   // FILETIME* optional
    IntPtr hAdditionalStore,   // HCERTSTORE optional
    IntPtr pChainPara,   // CERT_CHAIN_PARA*
    uint dwFlags,   // DWORD
    IntPtr pvReserved,   // void* optional
    IntPtr ppChainContext   // CERT_CHAIN_CONTEXT** out
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CertGetCertificateChain(
    hChainEngine As IntPtr,   ' HCERTCHAINENGINE optional
    pCertContext As IntPtr,   ' CERT_CONTEXT*
    pTime As IntPtr,   ' FILETIME* optional
    hAdditionalStore As IntPtr,   ' HCERTSTORE optional
    pChainPara As IntPtr,   ' CERT_CHAIN_PARA*
    dwFlags As UInteger,   ' DWORD
    pvReserved As IntPtr,   ' void* optional
    ppChainContext As IntPtr   ' CERT_CHAIN_CONTEXT** out
) As Boolean
End Function

' hChainEngine : HCERTCHAINENGINE optional
' pCertContext : CERT_CONTEXT*
' pTime : FILETIME* optional
' hAdditionalStore : HCERTSTORE optional
' pChainPara : CERT_CHAIN_PARA*
' dwFlags : DWORD
' pvReserved : void* optional
' ppChainContext : CERT_CHAIN_CONTEXT** out
Declare PtrSafe Function CertGetCertificateChain Lib "crypt32" ( _
    ByVal hChainEngine As LongPtr, _
    ByVal pCertContext As LongPtr, _
    ByVal pTime As LongPtr, _
    ByVal hAdditionalStore As LongPtr, _
    ByVal pChainPara As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal pvReserved As LongPtr, _
    ByVal ppChainContext As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CertGetCertificateChain = ctypes.windll.crypt32.CertGetCertificateChain
CertGetCertificateChain.restype = wintypes.BOOL
CertGetCertificateChain.argtypes = [
    wintypes.HANDLE,  # hChainEngine : HCERTCHAINENGINE optional
    ctypes.c_void_p,  # pCertContext : CERT_CONTEXT*
    ctypes.c_void_p,  # pTime : FILETIME* optional
    wintypes.HANDLE,  # hAdditionalStore : HCERTSTORE optional
    ctypes.c_void_p,  # pChainPara : CERT_CHAIN_PARA*
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.POINTER(None),  # pvReserved : void* optional
    ctypes.c_void_p,  # ppChainContext : CERT_CHAIN_CONTEXT** out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CertGetCertificateChain = Fiddle::Function.new(
  lib['CertGetCertificateChain'],
  [
    Fiddle::TYPE_VOIDP,  # hChainEngine : HCERTCHAINENGINE optional
    Fiddle::TYPE_VOIDP,  # pCertContext : CERT_CONTEXT*
    Fiddle::TYPE_VOIDP,  # pTime : FILETIME* optional
    Fiddle::TYPE_VOIDP,  # hAdditionalStore : HCERTSTORE optional
    Fiddle::TYPE_VOIDP,  # pChainPara : CERT_CHAIN_PARA*
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # pvReserved : void* optional
    Fiddle::TYPE_VOIDP,  # ppChainContext : CERT_CHAIN_CONTEXT** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CertGetCertificateChain(
        hChainEngine: *mut core::ffi::c_void,  // HCERTCHAINENGINE optional
        pCertContext: *const CERT_CONTEXT,  // CERT_CONTEXT*
        pTime: *mut FILETIME,  // FILETIME* optional
        hAdditionalStore: *mut core::ffi::c_void,  // HCERTSTORE optional
        pChainPara: *mut CERT_CHAIN_PARA,  // CERT_CHAIN_PARA*
        dwFlags: u32,  // DWORD
        pvReserved: *mut (),  // void* optional
        ppChainContext: *mut *mut CERT_CHAIN_CONTEXT  // CERT_CHAIN_CONTEXT** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true)]
public static extern bool CertGetCertificateChain(IntPtr hChainEngine, IntPtr pCertContext, IntPtr pTime, IntPtr hAdditionalStore, IntPtr pChainPara, uint dwFlags, IntPtr pvReserved, IntPtr ppChainContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CertGetCertificateChain' -Namespace Win32 -PassThru
# $api::CertGetCertificateChain(hChainEngine, pCertContext, pTime, hAdditionalStore, pChainPara, dwFlags, pvReserved, ppChainContext)

#uselib "CRYPT32.dll"
#func global CertGetCertificateChain "CertGetCertificateChain" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; CertGetCertificateChain hChainEngine, varptr(pCertContext), varptr(pTime), hAdditionalStore, varptr(pChainPara), dwFlags, pvReserved, varptr(ppChainContext)   ; 戻り値は stat
; hChainEngine : HCERTCHAINENGINE optional -> "sptr"
; pCertContext : CERT_CONTEXT* -> "sptr"
; pTime : FILETIME* optional -> "sptr"
; hAdditionalStore : HCERTSTORE optional -> "sptr"
; pChainPara : CERT_CHAIN_PARA* -> "sptr"
; dwFlags : DWORD -> "sptr"
; pvReserved : void* optional -> "sptr"
; ppChainContext : CERT_CHAIN_CONTEXT** 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 "CRYPT32.dll"
#cfunc global CertGetCertificateChain "CertGetCertificateChain" sptr, var, var, sptr, var, int, sptr, var
; res = CertGetCertificateChain(hChainEngine, pCertContext, pTime, hAdditionalStore, pChainPara, dwFlags, pvReserved, ppChainContext)
; hChainEngine : HCERTCHAINENGINE optional -> "sptr"
; pCertContext : CERT_CONTEXT* -> "var"
; pTime : FILETIME* optional -> "var"
; hAdditionalStore : HCERTSTORE optional -> "sptr"
; pChainPara : CERT_CHAIN_PARA* -> "var"
; dwFlags : DWORD -> "int"
; pvReserved : void* optional -> "sptr"
; ppChainContext : CERT_CHAIN_CONTEXT** out -> "var"
; ※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 "CRYPT32.dll"
#cfunc global CertGetCertificateChain "CertGetCertificateChain" sptr, sptr, sptr, sptr, sptr, int, sptr, sptr
; res = CertGetCertificateChain(hChainEngine, varptr(pCertContext), varptr(pTime), hAdditionalStore, varptr(pChainPara), dwFlags, pvReserved, varptr(ppChainContext))
; hChainEngine : HCERTCHAINENGINE optional -> "sptr"
; pCertContext : CERT_CONTEXT* -> "sptr"
; pTime : FILETIME* optional -> "sptr"
; hAdditionalStore : HCERTSTORE optional -> "sptr"
; pChainPara : CERT_CHAIN_PARA* -> "sptr"
; dwFlags : DWORD -> "int"
; pvReserved : void* optional -> "sptr"
; ppChainContext : CERT_CHAIN_CONTEXT** out -> "sptr"
; ※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 CertGetCertificateChain(HCERTCHAINENGINE hChainEngine, CERT_CONTEXT* pCertContext, FILETIME* pTime, HCERTSTORE hAdditionalStore, CERT_CHAIN_PARA* pChainPara, DWORD dwFlags, void* pvReserved, CERT_CHAIN_CONTEXT** ppChainContext)
#uselib "CRYPT32.dll"
#cfunc global CertGetCertificateChain "CertGetCertificateChain" intptr, var, var, intptr, var, int, intptr, var
; res = CertGetCertificateChain(hChainEngine, pCertContext, pTime, hAdditionalStore, pChainPara, dwFlags, pvReserved, ppChainContext)
; hChainEngine : HCERTCHAINENGINE optional -> "intptr"
; pCertContext : CERT_CONTEXT* -> "var"
; pTime : FILETIME* optional -> "var"
; hAdditionalStore : HCERTSTORE optional -> "intptr"
; pChainPara : CERT_CHAIN_PARA* -> "var"
; dwFlags : DWORD -> "int"
; pvReserved : void* optional -> "intptr"
; ppChainContext : CERT_CHAIN_CONTEXT** out -> "var"
; ※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 CertGetCertificateChain(HCERTCHAINENGINE hChainEngine, CERT_CONTEXT* pCertContext, FILETIME* pTime, HCERTSTORE hAdditionalStore, CERT_CHAIN_PARA* pChainPara, DWORD dwFlags, void* pvReserved, CERT_CHAIN_CONTEXT** ppChainContext)
#uselib "CRYPT32.dll"
#cfunc global CertGetCertificateChain "CertGetCertificateChain" intptr, intptr, intptr, intptr, intptr, int, intptr, intptr
; res = CertGetCertificateChain(hChainEngine, varptr(pCertContext), varptr(pTime), hAdditionalStore, varptr(pChainPara), dwFlags, pvReserved, varptr(ppChainContext))
; hChainEngine : HCERTCHAINENGINE optional -> "intptr"
; pCertContext : CERT_CONTEXT* -> "intptr"
; pTime : FILETIME* optional -> "intptr"
; hAdditionalStore : HCERTSTORE optional -> "intptr"
; pChainPara : CERT_CHAIN_PARA* -> "intptr"
; dwFlags : DWORD -> "int"
; pvReserved : void* optional -> "intptr"
; ppChainContext : CERT_CHAIN_CONTEXT** out -> "intptr"
; ※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 (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCertGetCertificateChain = crypt32.NewProc("CertGetCertificateChain")
)

// hChainEngine (HCERTCHAINENGINE optional), pCertContext (CERT_CONTEXT*), pTime (FILETIME* optional), hAdditionalStore (HCERTSTORE optional), pChainPara (CERT_CHAIN_PARA*), dwFlags (DWORD), pvReserved (void* optional), ppChainContext (CERT_CHAIN_CONTEXT** out)
r1, _, err := procCertGetCertificateChain.Call(
	uintptr(hChainEngine),
	uintptr(pCertContext),
	uintptr(pTime),
	uintptr(hAdditionalStore),
	uintptr(pChainPara),
	uintptr(dwFlags),
	uintptr(pvReserved),
	uintptr(ppChainContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CertGetCertificateChain(
  hChainEngine: THandle;   // HCERTCHAINENGINE optional
  pCertContext: Pointer;   // CERT_CONTEXT*
  pTime: Pointer;   // FILETIME* optional
  hAdditionalStore: THandle;   // HCERTSTORE optional
  pChainPara: Pointer;   // CERT_CHAIN_PARA*
  dwFlags: DWORD;   // DWORD
  pvReserved: Pointer;   // void* optional
  ppChainContext: Pointer   // CERT_CHAIN_CONTEXT** out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CertGetCertificateChain';

result := DllCall("CRYPT32\CertGetCertificateChain"
    , "Ptr", hChainEngine   ; HCERTCHAINENGINE optional
    , "Ptr", pCertContext   ; CERT_CONTEXT*
    , "Ptr", pTime   ; FILETIME* optional
    , "Ptr", hAdditionalStore   ; HCERTSTORE optional
    , "Ptr", pChainPara   ; CERT_CHAIN_PARA*
    , "UInt", dwFlags   ; DWORD
    , "Ptr", pvReserved   ; void* optional
    , "Ptr", ppChainContext   ; CERT_CHAIN_CONTEXT** out
    , "Int")   ; return: BOOL

●CertGetCertificateChain(hChainEngine, pCertContext, pTime, hAdditionalStore, pChainPara, dwFlags, pvReserved, ppChainContext) = DLL("CRYPT32.dll", "bool CertGetCertificateChain(void*, void*, void*, void*, void*, dword, void*, void*)")
# 呼び出し: CertGetCertificateChain(hChainEngine, pCertContext, pTime, hAdditionalStore, pChainPara, dwFlags, pvReserved, ppChainContext)
# hChainEngine : HCERTCHAINENGINE optional -> "void*"
# pCertContext : CERT_CONTEXT* -> "void*"
# pTime : FILETIME* optional -> "void*"
# hAdditionalStore : HCERTSTORE optional -> "void*"
# pChainPara : CERT_CHAIN_PARA* -> "void*"
# dwFlags : DWORD -> "dword"
# pvReserved : void* optional -> "void*"
# ppChainContext : CERT_CHAIN_CONTEXT** 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)。