Sandboxie/Sandboxie/core/dll/lsa.c

137 lines
4.0 KiB
C

/*
* Copyright 2004-2020 Sandboxie Holdings, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
//---------------------------------------------------------------------------
// Local Security Authority
//---------------------------------------------------------------------------
#include "dll.h"
//---------------------------------------------------------------------------
// Functions
//---------------------------------------------------------------------------
static BOOLEAN Lsa_Init_Common(const WCHAR *DllName, HMODULE module);
static NTSTATUS Lsa_LsaRegisterLogonProcess(
void *LogonProcessName, HANDLE *LsaHandle, void *SecurityMode);
//---------------------------------------------------------------------------
typedef ULONG (*P_LsaConnectUntrusted)(HANDLE *LsaHandle);
typedef NTSTATUS (*P_LsaRegisterLogonProcess)(
void *LogonProcessName, HANDLE *LsaHandle, void *SecurityMode);
typedef NTSTATUS (*P_LsaOpenPolicy)(
void *SystemName, void *ObjectAttributes, ACCESS_MASK DesiredAccess,
HANDLE *PolicyHandle);
//---------------------------------------------------------------------------
static P_LsaConnectUntrusted __sys_LsaConnectUntrusted = NULL;
static P_LsaRegisterLogonProcess __sys_LsaRegisterLogonProcess = NULL;
//---------------------------------------------------------------------------
// Lsa_Init_Common
//---------------------------------------------------------------------------
_FX BOOLEAN Lsa_Init_Common(const WCHAR *DllName, HMODULE module)
{
void *LsaRegisterLogonProcess;
//
// intercept SECUR32/SSPICLI entry points
//
__sys_LsaConnectUntrusted = (P_LsaConnectUntrusted)
Ldr_GetProcAddrNew(DllName, L"LsaConnectUntrusted","LsaConnectUntrusted");
LsaRegisterLogonProcess = (P_LsaRegisterLogonProcess)
Ldr_GetProcAddrNew(DllName, L"LsaRegisterLogonProcess","LsaRegisterLogonProcess");
SBIEDLL_HOOK(Lsa_,LsaRegisterLogonProcess);
return TRUE;
}
//---------------------------------------------------------------------------
// Lsa_LsaRegisterLogonProcess
//---------------------------------------------------------------------------
static NTSTATUS Lsa_LsaRegisterLogonProcess(
void *LogonProcessName, HANDLE *LsaHandle, void *SecurityMode)
{
NTSTATUS status = __sys_LsaRegisterLogonProcess(
LogonProcessName, LsaHandle, SecurityMode);
if (! NT_SUCCESS(status))
status = __sys_LsaConnectUntrusted(LsaHandle);
return status;
}
//---------------------------------------------------------------------------
// Lsa_Init_Secur32
//---------------------------------------------------------------------------
_FX BOOLEAN Lsa_Init_Secur32(HMODULE module)
{
if (Dll_KernelBase) {
//
// On Windows 7, LsaRegisterLogonProcess and LsaConnectUntrusted
// are implemented by SspiCli.dll
//
return TRUE;
}
return Lsa_Init_Common(DllName_secur32, module);
}
//---------------------------------------------------------------------------
// Lsa_Init_SspiCli
//---------------------------------------------------------------------------
_FX BOOLEAN Lsa_Init_SspiCli(HMODULE module)
{
if (! Dll_KernelBase) {
//
// On Windows earlier than 7, LsaRegisterLogonProcess and
// LsaConnectUntrusted are implemented by Secur32.dll
//
return TRUE;
}
return Lsa_Init_Common(DllName_sspicli, module);
}