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// Licensed under the MIT License.
using System.ComponentModel;
using System.Runtime.InteropServices;
namespace System.Management.Automation.Win32Native;
internal class SafeCATAdminHandle : SafeHandle
{
internal SafeCATAdminHandle() : base(IntPtr.Zero, true) { }
public override bool IsInvalid => handle == IntPtr.Zero;
protected override bool ReleaseHandle() => WinTrustMethods.CryptCATAdminReleaseContext(handle, 0);
}
internal class SafeCATHandle : SafeHandle
{
internal SafeCATHandle() : base(IntPtr.Zero, true) { }
public override bool IsInvalid => handle == (IntPtr)(-1);
protected override bool ReleaseHandle() => WinTrustMethods.CryptCATClose(handle);
}
internal class SafeCATCDFHandle : SafeHandle
{
internal SafeCATCDFHandle() : base(IntPtr.Zero, true) { }
public override bool IsInvalid => handle == IntPtr.Zero;
protected override bool ReleaseHandle() => WinTrustMethods.CryptCATCDFClose(handle);
}
[Flags]
internal enum WinTrustUIChoice
{
WTD_UI_ALL = 1,
WTD_UI_NONE = 2,
WTD_UI_NOBAD = 3,
WTD_UI_NOGOOD = 4
}
[Flags]
internal enum WinTrustUnionChoice
{
WTD_CHOICE_FILE = 1,
WTD_CHOICE_CATALOG = 2,
WTD_CHOICE_BLOB = 3,
WTD_CHOICE_SIGNER = 4,
WTD_CHOICE_CERT = 5,
}
[Flags]
internal enum WinTrustAction
{
WTD_STATEACTION_IGNORE = 0x00000000,
WTD_STATEACTION_VERIFY = 0x00000001,
WTD_STATEACTION_CLOSE = 0x00000002,
WTD_STATEACTION_AUTO_CACHE = 0x00000003,
WTD_STATEACTION_AUTO_CACHE_FLUSH = 0x00000004
}
[Flags]
internal enum WinTrustProviderFlags
{
WTD_PROV_FLAGS_MASK = 0x0000FFFF,
WTD_USE_IE4_TRUST_FLAG = 0x00000001,
WTD_NO_IE4_CHAIN_FLAG = 0x00000002,
WTD_NO_POLICY_USAGE_FLAG = 0x00000004,
WTD_REVOCATION_CHECK_NONE = 0x00000010,
WTD_REVOCATION_CHECK_END_CERT = 0x00000020,
WTD_REVOCATION_CHECK_CHAIN = 0x00000040,
WTD_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT = 0x00000080,
WTD_SAFER_FLAG = 0x00000100,
WTD_HASH_ONLY_FLAG = 0x00000200,
WTD_USE_DEFAULT_OSVER_CHECK = 0x00000400,
WTD_LIFETIME_SIGNING_FLAG = 0x00000800,
WTD_CACHE_ONLY_URL_RETRIEVAL = 0x00001000
}
/// <summary>
/// Pinvoke methods from wintrust.dll
/// </summary>
internal static class WinTrustMethods
{
private const string WinTrustDll = "wintrust.dll";
[StructLayout(LayoutKind.Sequential)]
internal struct CRYPT_ATTR_BLOB
{
public uint cbData;
public IntPtr pbData;
}
[StructLayout(LayoutKind.Sequential)]
internal struct CRYPT_ALGORITHM_IDENTIFIER
{
[MarshalAs(UnmanagedType.LPStr)] public string pszObjId;
public CRYPT_ATTR_BLOB Parameters;
}
[StructLayout(LayoutKind.Sequential)]
internal struct CRYPT_ATTRIBUTE_TYPE_VALUE
{
[MarshalAs(UnmanagedType.LPStr)] public string pszObjId;
public CRYPT_ATTR_BLOB Value;
}
[StructLayout(LayoutKind.Sequential)]
internal struct SIP_INDIRECT_DATA
{
public CRYPT_ATTRIBUTE_TYPE_VALUE Data;
public CRYPT_ALGORITHM_IDENTIFIER DigestAlgorithm;
public CRYPT_ATTR_BLOB Digest;
}
[StructLayout(LayoutKind.Sequential)]
internal struct CRYPTCATMEMBER
{
public uint cbStruct;
[MarshalAs(UnmanagedType.LPWStr)] public string pwszReferenceTag;
[MarshalAs(UnmanagedType.LPWStr)] public string pwszFileName;
public Guid gSubjectType;
public uint fdwMemberFlags;
public IntPtr pIndirectData;
public uint dwCertVersion;
public uint dwReserved;
public IntPtr hReserved;
public CRYPT_ATTR_BLOB sEncodedIndirectData;
public CRYPT_ATTR_BLOB sEncodedMemberInfo;
}
[StructLayout(LayoutKind.Sequential)]
internal struct CRYPTCATATTRIBUTE
{
public uint cbStruct;
[MarshalAs(UnmanagedType.LPWStr)] public string pwszReferenceTag;
public uint dwAttrTypeAndAction;
public uint cbValue;
public IntPtr pbValue;
public uint dwReserved;
}
[StructLayout(LayoutKind.Sequential)]
internal struct CRYPTCATSTORE
{
public uint cbStruct;
public uint dwPublicVersion;
[MarshalAs(UnmanagedType.LPWStr)] public string pwszP7File;
public IntPtr hProv;
public uint dwEncodingType;
public uint fdwStoreFlags;
public IntPtr hReserved;
public IntPtr hAttrs;
public IntPtr hCryptMsg;
public IntPtr hSorted;
}
[StructLayout(LayoutKind.Sequential)]
internal struct WINTRUST_DATA
{
public uint cbStruct;
public IntPtr pPolicyCallbackData;
public IntPtr pSIPClientData;
public WinTrustUIChoice dwUIChoice;
public uint fdwRevocationChecks;
public WinTrustUnionChoice dwUnionChoice;
public unsafe void* pChoice;
public WinTrustAction dwStateAction;
public IntPtr hWVTStateData;
public IntPtr pwszURLReference;
public WinTrustProviderFlags dwProvFlags;
public uint dwUIContext;
}
[StructLayout(LayoutKind.Sequential)]
internal struct WINTRUST_FILE_INFO
{
public uint cbStruct;
public unsafe char* pcwszFilePath;
public IntPtr hFile;
public IntPtr pgKnownSubject;
}
[StructLayout(LayoutKind.Sequential)]
internal struct WINTRUST_BLOB_INFO
{
public uint cbStruct;
public Guid gSubject;
public unsafe char* pcwszDisplayName;
public uint cbMemObject;
public unsafe byte* pbMemObject;
public uint cbMemSignedMsg;
public IntPtr pbMemSignedMsg;
}
[DllImport(
WinTrustDll,
CharSet = CharSet.Unicode,
EntryPoint = "CryptCATAdminAcquireContext2",
SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern bool NativeCryptCATAdminAcquireContext2(
out SafeCATAdminHandle phCatAdmin,
IntPtr pgSubsystem,
[MarshalAs(UnmanagedType.LPWStr)] string pwszHashAlgorithm,
IntPtr pStrongHashPolicy,
uint dwFlags
);
internal static SafeCATAdminHandle CryptCATAdminAcquireContext2(string hashAlgorithm)
{
if (!NativeCryptCATAdminAcquireContext2(out var adminHandle, IntPtr.Zero, hashAlgorithm, IntPtr.Zero, 0))
{
throw new Win32Exception();
}
return adminHandle;
}
[DllImport(
WinTrustDll,
CharSet = CharSet.Unicode,
EntryPoint = "CryptCATAdminCalcHashFromFileHandle2",
SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
private static extern unsafe bool NativeCryptCATAdminCalcHashFromFileHandle2(
SafeCATAdminHandle hCatAdmin,
SafeHandle hFile,
[In, Out] ref int pcbHash,
byte* pbHash,
uint dwFlags
);
internal static byte[] CryptCATAdminCalcHashFromFileHandle2(SafeCATAdminHandle catAdmin, SafeHandle file)
{
unsafe
{
int hashLength = 0;
NativeCryptCATAdminCalcHashFromFileHandle2(catAdmin, file, ref hashLength, null, 0);
byte[] hash = new byte[hashLength];
fixed (byte* hashPtr = hash)
{
if (!NativeCryptCATAdminCalcHashFromFileHandle2(catAdmin, file, ref hashLength, hashPtr, 0))
{
throw new Win32Exception();
}
}
return hash;
}
}
[DllImport(WinTrustDll, CharSet = CharSet.Unicode)]
[return: MarshalAs(UnmanagedType.Bool)]
internal static extern bool CryptCATAdminReleaseContext(
IntPtr phCatAdmin,
uint dwFlags
);
[DllImport(WinTrustDll, CharSet = CharSet.Unicode, EntryPoint = "CryptCATCDFOpen")]
private static extern SafeCATCDFHandle NativeCryptCATCDFOpen(
[MarshalAs(UnmanagedType.LPWStr)] string pwszFilePath,
CryptCATCDFParseErrorCallBack pfnParseError
);
internal static SafeCATCDFHandle CryptCATCDFOpen(string filePath, CryptCATCDFParseErrorCallBack parseError)
{
SafeCATCDFHandle handle = NativeCryptCATCDFOpen(filePath, parseError);
if (handle.IsInvalid)
{
throw new Win32Exception();
}
return handle;
}
[DllImport(WinTrustDll, CharSet = CharSet.Unicode)]
internal static extern IntPtr CryptCATCDFEnumCatAttributes(
SafeCATCDFHandle pCDF,
IntPtr pPrevAttr,
CryptCATCDFParseErrorCallBack pfnParseError
);
[DllImport(WinTrustDll)]
[return: MarshalAs(UnmanagedType.Bool)]
internal static extern bool CryptCATCDFClose(
IntPtr pCDF
);
[DllImport(WinTrustDll, CharSet = CharSet.Unicode)]
internal static extern IntPtr CryptCATCDFEnumMembersByCDFTagEx(
SafeCATCDFHandle pCDF,
IntPtr pwszPrevCDFTag,
CryptCATCDFParseErrorCallBack fn,
ref IntPtr ppMember,
bool fContinueOnError,
IntPtr pvReserved
);
[DllImport(WinTrustDll, CharSet = CharSet.Unicode)]
internal static extern IntPtr CryptCATCDFEnumAttributesWithCDFTag(
SafeCATCDFHandle pCDF,
IntPtr pwszMemberTag,
IntPtr pMember,
IntPtr pPrevAttr,
CryptCATCDFParseErrorCallBack fn
);
[DllImport(WinTrustDll, CharSet = CharSet.Unicode)]
internal static extern IntPtr CryptCATEnumerateCatAttr(
SafeCATHandle hCatalog,
IntPtr pPrevAttr
);
[DllImport(WinTrustDll, CharSet = CharSet.Unicode, EntryPoint = "CryptCATOpen", SetLastError = true)]
internal static extern SafeCATHandle NativeCryptCATOpen(
[MarshalAs(UnmanagedType.LPWStr)] string pwszFilePath,
uint fdwOpenFlags,
IntPtr hProv,
uint dwPublicVersion,
uint dwEncodingType
);
internal static SafeCATHandle CryptCATOpen(string filePath, uint openFlags, IntPtr provider, uint publicVersion,
uint encodingType)
{
SafeCATHandle handle = NativeCryptCATOpen(filePath, openFlags, provider, publicVersion, encodingType);
if (handle.IsInvalid)
{
throw new Win32Exception();
}
return handle;
}
[DllImport(WinTrustDll)]
[return: MarshalAs(UnmanagedType.Bool)]
internal static extern bool CryptCATClose(
IntPtr hCatalog
);
[DllImport(WinTrustDll, CharSet = CharSet.Unicode, EntryPoint = "CryptCATStoreFromHandle")]
private static extern IntPtr NativeCryptCATStoreFromHandle(
SafeCATHandle hCatalog
);
internal static CRYPTCATSTORE CryptCATStoreFromHandle(SafeCATHandle catalog)
{
IntPtr catStore = NativeCryptCATStoreFromHandle(catalog);
return Marshal.PtrToStructure<CRYPTCATSTORE>(catStore);
}
[DllImport(WinTrustDll, CharSet = CharSet.Unicode)]
internal static extern IntPtr CryptCATEnumerateMember(
SafeCATHandle hCatalog,
IntPtr pPrevMember
);
[DllImport(WinTrustDll, CharSet = CharSet.Unicode)]
internal static extern IntPtr CryptCATEnumerateAttr(
SafeCATHandle hCatalog,
IntPtr pCatMember,
IntPtr pPrevAttr
);
[DllImport(WinTrustDll, CharSet = CharSet.Unicode)]
internal static extern uint WinVerifyTrust(
IntPtr hWnd,
ref Guid pgActionID,
ref WINTRUST_DATA pWVTData
);
[DllImport(WinTrustDll, CharSet = CharSet.Unicode, EntryPoint = "WTHelperGetProvCertFromChain")]
private static extern IntPtr NativeWTHelperGetProvCertFromChain(
IntPtr pSgnr,
uint idxCert
);
internal static IntPtr WTHelperGetProvCertFromChain(IntPtr signer, uint certIdx)
{
IntPtr data = NativeWTHelperGetProvCertFromChain(signer, certIdx);
if (data == IntPtr.Zero)
{
throw new Win32Exception("WTHelperGetProvCertFromChain failed");
}
return data;
}
[DllImport(WinTrustDll, CharSet = CharSet.Unicode, EntryPoint = "WTHelperGetProvSignerFromChain")]
private static extern IntPtr NativeWTHelperGetProvSignerFromChain(
IntPtr pProvData,
uint idxSigner,
bool fCounterSigner,
uint idxCounterSigner
);
internal static IntPtr WTHelperGetProvSignerFromChain(IntPtr providerData, uint signerIdx, bool counterSigner,
uint counterSignerIdx)
{
IntPtr data = NativeWTHelperGetProvSignerFromChain(providerData, signerIdx, counterSigner, counterSignerIdx);
if (data == IntPtr.Zero)
{
throw new Win32Exception("WTHelperGetProvSignerFromChain failed");
}
return data;
}
[DllImport(WinTrustDll, CharSet = CharSet.Unicode, EntryPoint = "WTHelperProvDataFromStateData")]
private static extern IntPtr NativeWTHelperProvDataFromStateData(
IntPtr hStateData
);
internal static IntPtr WTHelperProvDataFromStateData(IntPtr stateData)
{
IntPtr data = NativeWTHelperProvDataFromStateData(stateData);
if (data == IntPtr.Zero)
{
throw new Win32Exception("WTHelperProvDataFromStateData failed");
}
return data;
}
/// <summary>
/// Signature of call back function used by CryptCATCDFOpen,
/// CryptCATCDFEnumCatAttributes, CryptCATCDFEnumAttributesWithCDFTag, and
/// and CryptCATCDFEnumMembersByCDFTagEx.
/// </summary>
internal delegate void CryptCATCDFParseErrorCallBack(
uint dwErrorArea,
uint dwLocalArea,
[MarshalAs(UnmanagedType.LPWStr)] string pwszLine
);
}
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