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153 lines
4.1 KiB
C
153 lines
4.1 KiB
C
/*
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* fltmgr.sys
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*
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* Copyright 2015 Austin English
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winternl.h"
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#include "ddk/fltkernel.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(fltmgr);
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NTSTATUS WINAPI DriverEntry( DRIVER_OBJECT *driver, UNICODE_STRING *path )
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{
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TRACE( "(%p, %s)\n", driver, debugstr_w(path->Buffer) );
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return STATUS_SUCCESS;
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}
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void WINAPI FltInitializePushLock( EX_PUSH_LOCK *lock )
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{
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FIXME( "(%p): stub\n", lock );
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}
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void WINAPI FltDeletePushLock( EX_PUSH_LOCK *lock )
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{
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FIXME( "(%p): stub\n", lock );
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}
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void WINAPI FltAcquirePushLockExclusive( EX_PUSH_LOCK *lock )
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{
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FIXME( "(%p): stub\n", lock );
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}
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void WINAPI FltReleasePushLock( EX_PUSH_LOCK *lock )
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{
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FIXME( "(%p): stub\n", lock );
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}
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NTSTATUS WINAPI FltRegisterFilter( PDRIVER_OBJECT driver, const FLT_REGISTRATION *reg, PFLT_FILTER *filter )
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{
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FIXME( "(%p,%p,%p): stub\n", driver, reg, filter );
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if(filter)
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*filter = UlongToHandle(0xdeadbeaf);
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return STATUS_SUCCESS;
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}
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NTSTATUS WINAPI FltStartFiltering( PFLT_FILTER filter )
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{
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FIXME( "(%p): stub\n", filter );
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return STATUS_SUCCESS;
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}
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void WINAPI FltUnregisterFilter( PFLT_FILTER filter )
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{
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FIXME( "(%p): stub\n", filter );
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}
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void* WINAPI FltGetRoutineAddress(LPCSTR name)
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{
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HMODULE mod = GetModuleHandleW(L"fltmgr.sys");
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void *func;
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func = GetProcAddress(mod, name);
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if (func)
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TRACE( "%s -> %p\n", debugstr_a(name), func );
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else
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FIXME( "%s not found\n", debugstr_a(name) );
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return func;
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}
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NTSTATUS WINAPI FltBuildDefaultSecurityDescriptor(PSECURITY_DESCRIPTOR *descriptor, ACCESS_MASK access)
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{
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PACL dacl;
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NTSTATUS ret = STATUS_INSUFFICIENT_RESOURCES;
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DWORD sid_len;
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SID *sid;
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SID *sid_system = NULL;
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PSECURITY_DESCRIPTOR sec_desc = NULL;
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SID_IDENTIFIER_AUTHORITY auth = { SECURITY_NULL_SID_AUTHORITY };
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*descriptor = NULL;
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sid_len = RtlLengthRequiredSid(2);
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sid = ExAllocatePool(PagedPool, sid_len);
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if (!sid)
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goto done;
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RtlInitializeSid(sid, &auth, 2);
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sid->SubAuthority[1] = DOMAIN_GROUP_RID_ADMINS;
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sid->SubAuthority[0] = SECURITY_BUILTIN_DOMAIN_RID;
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sid_len = RtlLengthRequiredSid(1);
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sid_system = ExAllocatePool(PagedPool, sid_len);
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if (!sid_system)
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goto done;
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RtlInitializeSid(sid_system, &auth, 1);
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sid_system->SubAuthority[0] = SECURITY_LOCAL_SYSTEM_RID;
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sid_len = SECURITY_DESCRIPTOR_MIN_LENGTH + sizeof(ACL) +
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sizeof(ACCESS_ALLOWED_ACE) + RtlLengthSid(sid) +
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sizeof(ACCESS_ALLOWED_ACE) + RtlLengthSid(sid_system);
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sec_desc = ExAllocatePool(PagedPool, sid_len);
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if (!sec_desc)
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{
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ret = STATUS_NO_MEMORY;
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goto done;
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}
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RtlCreateSecurityDescriptor(sec_desc, SECURITY_DESCRIPTOR_REVISION);
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dacl = (PACL)((char*)sec_desc + SECURITY_DESCRIPTOR_MIN_LENGTH);
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RtlCreateAcl(dacl, sid_len - SECURITY_DESCRIPTOR_MIN_LENGTH, ACL_REVISION);
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RtlAddAccessAllowedAce(dacl, ACL_REVISION, access, sid);
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RtlAddAccessAllowedAce(dacl, ACL_REVISION, access, sid_system);
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RtlSetDaclSecurityDescriptor(sec_desc, 1, dacl, 0);
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*descriptor = sec_desc;
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ret = STATUS_SUCCESS;
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done:
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ExFreePool(sid);
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ExFreePool(sid_system);
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return ret;
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}
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void WINAPI FltFreeSecurityDescriptor(PSECURITY_DESCRIPTOR descriptor)
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{
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ExFreePool(descriptor);
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}
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