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refactor: shared->shared/um, ku->shared/ku

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This commit is contained in:
Bill Zissimopoulos
2020-02-07 15:28:25 -08:00
parent 71995a1fcd
commit 0650cabc47
20 changed files with 88 additions and 72 deletions
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227
src/shared/ku/library.h Normal file
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@@ -0,0 +1,227 @@
/**
* @file shared/ku/library.h
*
* @copyright 2015-2020 Bill Zissimopoulos
*/
/*
* This file is part of WinFsp.
*
* You can redistribute it and/or modify it under the terms of the GNU
* General Public License version 3 as published by the Free Software
* Foundation.
*
* Licensees holding a valid commercial license may use this software
* in accordance with the commercial license agreement provided in
* conjunction with the software. The terms and conditions of any such
* commercial license agreement shall govern, supersede, and render
* ineffective any application of the GPLv3 license to this software,
* notwithstanding of any reference thereto in the software or
* associated repository.
*/
#ifndef WINFSP_SHARED_KU_LIBRARY_H_INCLUDED
#define WINFSP_SHARED_KU_LIBRARY_H_INCLUDED
#if !defined(_KERNEL_MODE)
#include <dll/library.h>
#include <aclapi.h>
#define _NTDEF_
#include <ntsecapi.h>
#define FSP_KU_CODE ((void)0)
#else
#include <sys/driver.h>
#define FSP_KU_CODE PAGED_CODE(); NTSTATUS fsp_ku_status = STATUS_SUCCESS; (VOID)fsp_ku_status
#define FSP_API FSP_DDI
#define BYTE UINT8
#define BOOL BOOLEAN
#define LPBOOL PBOOLEAN
#define UINT ULONG
#define GetLastError() ((DWORD)fsp_ku_status)
#define FspNtStatusFromWin32(Err) ((NTSTATUS)(Err))
#define ERROR_INSUFFICIENT_BUFFER STATUS_BUFFER_TOO_SMALL
#define InitOnceExecuteOnce(I, F, P, C) RtlRunOnceExecuteOnce(I, F, P, C)
#define INIT_ONCE RTL_RUN_ONCE
#define INIT_ONCE_STATIC_INIT RTL_RUN_ONCE_INIT
#define AddAccessAllowedAce(Acl, Rev, Acc, Sid)\
(fsp_ku_status = RtlAddAccessAllowedAce(Acl, Rev, Acc, Sid),\
NT_SUCCESS(fsp_ku_status))
#define AddAccessDeniedAce(Acl, Rev, Acc, Sid)\
(fsp_ku_status = FspKuAddAccessDeniedAce(Acl, Rev, Acc, Sid),\
NT_SUCCESS(fsp_ku_status))
#define EqualSid(Sid1, Sid2) (fsp_ku_status = 0, RtlEqualSid(Sid1, Sid2))
#define GetAce(Acl, Idx, Ace) (fsp_ku_status = RtlGetAce(Acl, Idx, Ace), NT_SUCCESS(fsp_ku_status))
#define GetAclInformation(Acl, Inf, Len, Cls)\
(fsp_ku_status = FspKuQueryInformationAcl(Acl, Inf, Len, Cls),\
NT_SUCCESS(fsp_ku_status))
#define GetLengthSid(Sid) (fsp_ku_status = 0, RtlLengthSid(Sid))
#define GetSecurityDescriptorDacl(Sec, Prs, Dac, Def)\
(fsp_ku_status = RtlGetDaclSecurityDescriptor(Sec, Prs, Dac, Def),\
NT_SUCCESS(fsp_ku_status))
#define GetSecurityDescriptorGroup(Sec, Grp, Def)\
(fsp_ku_status = RtlGetGroupSecurityDescriptor(Sec, Grp, Def),\
NT_SUCCESS(fsp_ku_status))
#define GetSecurityDescriptorOwner(Sec, Own, Def)\
(fsp_ku_status = RtlGetOwnerSecurityDescriptor(Sec, Own, Def),\
NT_SUCCESS(fsp_ku_status))
#define GetSidIdentifierAuthority(Sid) (fsp_ku_status = 0, &((PISID)(Sid))->IdentifierAuthority)
#define GetSidSubAuthority(Sid, Sub) (fsp_ku_status = 0, RtlSubAuthoritySid(Sid, Sub))
#define GetSidSubAuthorityCount(Sid) (fsp_ku_status = 0, RtlSubAuthorityCountSid(Sid))
#define InitializeAcl(Acl, Len, Rev) (fsp_ku_status = RtlCreateAcl(Acl, Len, Rev), NT_SUCCESS(fsp_ku_status))
#define InitializeSecurityDescriptor(Sec, Rev)\
(fsp_ku_status = RtlCreateSecurityDescriptor(Sec, Rev),\
NT_SUCCESS(fsp_ku_status))
#define InitializeSid(Sid, Aut, Cnt) (fsp_ku_status = RtlInitializeSid(Sid, Aut, Cnt), NT_SUCCESS(fsp_ku_status))
#define IsValidSid(Sid) (RtlValidSid(Sid) || (fsp_ku_status = STATUS_INVALID_SID, FALSE))
#define MakeSelfRelativeSD(Abs, Rel, Len)\
(fsp_ku_status = RtlAbsoluteToSelfRelativeSD(Abs, Rel, Len),\
NT_SUCCESS(fsp_ku_status))
#define SetSecurityDescriptorControl(Sec, Msk, Bit)\
(fsp_ku_status = FspKuSetControlSecurityDescriptor(Sec, Msk, Bit),\
NT_SUCCESS(fsp_ku_status))
#define SetSecurityDescriptorDacl(Sec, Prs, Dac, Def)\
(fsp_ku_status = RtlSetDaclSecurityDescriptor(Sec, Prs, Dac, Def),\
NT_SUCCESS(fsp_ku_status))
#define SetSecurityDescriptorGroup(Sec, Grp, Def)\
(fsp_ku_status = RtlSetGroupSecurityDescriptor(Sec, Grp, Def),\
NT_SUCCESS(fsp_ku_status))
#define SetSecurityDescriptorOwner(Sec, Own, Def)\
(fsp_ku_status = RtlSetOwnerSecurityDescriptor(Sec, Own, Def),\
NT_SUCCESS(fsp_ku_status))
static inline NTSTATUS FspKuAddAccessDeniedAce(
PACL Acl,
ULONG AceRevision,
ACCESS_MASK AccessMask,
PSID Sid)
{
/* We are missing RtlAddAccessDeniedAce. So we need this malarkey! */
NTSTATUS Result;
PACE_HEADER Ace;
Result = RtlAddAccessAllowedAce(Acl, AceRevision, AccessMask, Sid);
if (!NT_SUCCESS(Result))
return Result;
Result = RtlGetAce(Acl, Acl->AceCount - 1, &Ace);
if (!NT_SUCCESS(Result))
return Result;
Ace->AceType = ACCESS_DENIED_ACE_TYPE;
return STATUS_SUCCESS;
}
typedef enum
{
AclRevisionInformation__DO_NOT_USE = 1,
AclSizeInformation,
} ACL_INFORMATION_CLASS;
typedef struct
{
DWORD AceCount;
DWORD AclBytesInUse__DO_NOT_USE;
DWORD AclBytesFree__DO_NOT_USE;
} ACL_SIZE_INFORMATION, *PACL_SIZE_INFORMATION;
static inline NTSTATUS FspKuQueryInformationAcl(
PACL Acl,
PVOID AclInformation,
ULONG AclInformationLength,
ACL_INFORMATION_CLASS AclInformationClass)
{
ASSERT(AclSizeInformation == AclInformationClass);
ASSERT(sizeof(ACL_SIZE_INFORMATION) <= AclInformationLength);
((PACL_SIZE_INFORMATION)AclInformation)->AceCount = Acl->AceCount;
return STATUS_SUCCESS;
}
static inline NTSTATUS FspKuSetControlSecurityDescriptor(
PSECURITY_DESCRIPTOR SecurityDescriptor,
SECURITY_DESCRIPTOR_CONTROL ControlMask,
SECURITY_DESCRIPTOR_CONTROL ControlBits)
{
((PUSHORT)(SecurityDescriptor))[1] &= ~ControlMask;
((PUSHORT)(SecurityDescriptor))[1] |= ControlBits;
return STATUS_SUCCESS;
}
#define WideCharToMultiByte(C, F, W, w, B, b, D, d)\
(FspKuWideCharToMultiByte(C, F, W, w, B, b, D, d, &fsp_ku_status))
#define MultiByteToWideChar(C, F, B, b, W, w)\
(FspKuMultiByteToWideChar(C, F, B, b, W, w, &fsp_ku_status))
#define CP_UTF8 65001
static inline int FspKuWideCharToMultiByte(
UINT CodePage,
DWORD dwFlags,
LPCWCH lpWideCharStr,
int cchWideChar,
LPSTR lpMultiByteStr,
int cbMultiByte,
LPCCH lpDefaultChar,
LPBOOL lpUsedDefaultChar,
PNTSTATUS PResult)
{
ASSERT(CP_UTF8 == CodePage);
ASSERT(0 == dwFlags);
ASSERT(0 == lpDefaultChar);
ASSERT(0 == lpUsedDefaultChar);
NTSTATUS Result;
ULONG ByteCount;
if (-1 == cchWideChar)
cchWideChar = (int)wcslen(lpWideCharStr) + 1;
Result = RtlUnicodeToUTF8N(
lpMultiByteStr, cbMultiByte, &ByteCount,
lpWideCharStr, cchWideChar * sizeof(WCHAR));
if (STATUS_SOME_NOT_MAPPED == Result)
Result = STATUS_SUCCESS;
else if (!NT_SUCCESS(Result))
return 0;
*PResult = Result;
return ByteCount;
}
static inline int FspKuMultiByteToWideChar(
UINT CodePage,
DWORD dwFlags,
LPCCH lpMultiByteStr,
int cbMultiByte,
LPWSTR lpWideCharStr,
int cchWideChar,
PNTSTATUS PResult)
{
ASSERT(CP_UTF8 == CodePage);
ASSERT(0 == dwFlags);
NTSTATUS Result;
ULONG ByteCount;
if (-1 == cbMultiByte)
cbMultiByte = (int)strlen(lpMultiByteStr) + 1;
Result = RtlUTF8ToUnicodeN(
lpWideCharStr, cchWideChar * sizeof(WCHAR), &ByteCount,
lpMultiByteStr, cbMultiByte);
if (STATUS_SOME_NOT_MAPPED == Result)
Result = STATUS_SUCCESS;
else if (!NT_SUCCESS(Result))
return 0;
*PResult = Result;
return ByteCount / sizeof(WCHAR);
}
static inline PGENERIC_MAPPING FspGetFileGenericMapping(VOID)
{
return IoGetFileObjectGenericMapping();
}
static inline void *MemAlloc(size_t Size)
{
return FspAlloc(Size);
}
static inline void MemFree(void *Pointer)
{
if (0 != Pointer)
FspFree(Pointer);
}
#endif
#endif

1118
src/shared/ku/posix.c Normal file
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134
src/shared/ku/uuid5.c Normal file
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@@ -0,0 +1,134 @@
/**
* @file shared/ku/uuid5.c
*
* @copyright 2015-2020 Bill Zissimopoulos
*/
/*
* This file is part of WinFsp.
*
* You can redistribute it and/or modify it under the terms of the GNU
* General Public License version 3 as published by the Free Software
* Foundation.
*
* Licensees holding a valid commercial license may use this software
* in accordance with the commercial license agreement provided in
* conjunction with the software. The terms and conditions of any such
* commercial license agreement shall govern, supersede, and render
* ineffective any application of the GPLv3 license to this software,
* notwithstanding of any reference thereto in the software or
* associated repository.
*/
#include <shared/ku/library.h>
#include <bcrypt.h>
/*
* This module is used to create UUID v5 identifiers. UUID v5 identifiers
* are effectively SHA1 hashes that are modified to fit within the UUID
* format. The resulting identifiers use version 5 and variant 2. The hash
* is taken over the concatenation of a namespace ID and a name; the namespace
* ID is another UUID and the name can be any string of bytes ("octets").
*
* For details see RFC 4122: https://tools.ietf.org/html/rfc4122
*/
NTSTATUS FspUuid5Make(const UUID *Namespace, const VOID *Buffer, ULONG Size, UUID *Uuid)
{
BCRYPT_ALG_HANDLE ProvHandle = 0;
BCRYPT_HASH_HANDLE HashHandle = 0;
UINT8 Temp[20];
NTSTATUS Result;
/*
* Windows UUID's are encoded in little-endian format. RFC 4122 specifies that for
* UUID v5 computation, UUID's must be converted to/from big-endian.
*
* Note that Windows is always little-endian:
* https://community.osr.com/discussion/comment/146810/#Comment_146810
*/
/* copy Namespace to local buffer in network byte order (big-endian) */
Temp[ 0] = ((PUINT8)Namespace)[ 3];
Temp[ 1] = ((PUINT8)Namespace)[ 2];
Temp[ 2] = ((PUINT8)Namespace)[ 1];
Temp[ 3] = ((PUINT8)Namespace)[ 0];
Temp[ 4] = ((PUINT8)Namespace)[ 5];
Temp[ 5] = ((PUINT8)Namespace)[ 4];
Temp[ 6] = ((PUINT8)Namespace)[ 7];
Temp[ 7] = ((PUINT8)Namespace)[ 6];
Temp[ 8] = ((PUINT8)Namespace)[ 8];
Temp[ 9] = ((PUINT8)Namespace)[ 9];
Temp[10] = ((PUINT8)Namespace)[10];
Temp[11] = ((PUINT8)Namespace)[11];
Temp[12] = ((PUINT8)Namespace)[12];
Temp[13] = ((PUINT8)Namespace)[13];
Temp[14] = ((PUINT8)Namespace)[14];
Temp[15] = ((PUINT8)Namespace)[15];
/*
* Unfortunately we cannot reuse the hashing object, because BCRYPT_HASH_REUSABLE_FLAG
* is available in Windows 8 and later. (WinFsp currently supports Windows 7 or later).
*/
Result = BCryptOpenAlgorithmProvider(&ProvHandle, BCRYPT_SHA1_ALGORITHM, 0, 0);
if (!NT_SUCCESS(Result))
goto exit;
Result = BCryptCreateHash(ProvHandle, &HashHandle, 0, 0, 0, 0, 0);
if (!NT_SUCCESS(Result))
goto exit;
Result = BCryptHashData(HashHandle, (PVOID)Temp, 16, 0);
if (!NT_SUCCESS(Result))
goto exit;
Result = BCryptHashData(HashHandle, (PVOID)Buffer, Size, 0);
if (!NT_SUCCESS(Result))
goto exit;
Result = BCryptFinishHash(HashHandle, Temp, 20, 0);
if (!NT_SUCCESS(Result))
goto exit;
/* copy local buffer to Uuid in host byte order (little-endian) */
((PUINT8)Uuid)[ 0] = Temp[ 3];
((PUINT8)Uuid)[ 1] = Temp[ 2];
((PUINT8)Uuid)[ 2] = Temp[ 1];
((PUINT8)Uuid)[ 3] = Temp[ 0];
((PUINT8)Uuid)[ 4] = Temp[ 5];
((PUINT8)Uuid)[ 5] = Temp[ 4];
((PUINT8)Uuid)[ 6] = Temp[ 7];
((PUINT8)Uuid)[ 7] = Temp[ 6];
((PUINT8)Uuid)[ 8] = Temp[ 8];
((PUINT8)Uuid)[ 9] = Temp[ 9];
((PUINT8)Uuid)[10] = Temp[10];
((PUINT8)Uuid)[11] = Temp[11];
((PUINT8)Uuid)[12] = Temp[12];
((PUINT8)Uuid)[13] = Temp[13];
((PUINT8)Uuid)[14] = Temp[14];
((PUINT8)Uuid)[15] = Temp[15];
/* [RFC 4122 Section 4.3]
* Set the four most significant bits (bits 12 through 15) of the
* time_hi_and_version field to the appropriate 4-bit version number
* from Section 4.1.3.
*/
Uuid->Data3 = (5 << 12) | (Uuid->Data3 & 0x0fff);
/* [RFC 4122 Section 4.3]
* Set the two most significant bits (bits 6 and 7) of the
* clock_seq_hi_and_reserved to zero and one, respectively.
*/
Uuid->Data4[0] = (2 << 6) | (Uuid->Data4[0] & 0x3f);
Result = STATUS_SUCCESS;
exit:
if (0 != HashHandle)
BCryptDestroyHash(HashHandle);
if (0 != ProvHandle)
BCryptCloseAlgorithmProvider(ProvHandle, 0);
return Result;
}

6
src/shared/minimal.h → src/shared/um/minimal.h
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@@ -1,5 +1,5 @@
/**
* @file shared/minimal.h
* @file shared/um/minimal.h
*
* @copyright 2015-2020 Bill Zissimopoulos
*/
@@ -19,8 +19,8 @@
* associated repository.
*/
#ifndef WINFSP_SHARED_MINIMAL_H_INCLUDED
#define WINFSP_SHARED_MINIMAL_H_INCLUDED
#ifndef WINFSP_SHARED_UM_MINIMAL_H_INCLUDED
#define WINFSP_SHARED_UM_MINIMAL_H_INCLUDED
/*
* Eliminate dependency on the MSVCRT libraries.