IopSetupArbiterAndTranslators

NTSTATUS __stdcall IopSetupArbiterAndTranslators(_REQ_DESC *ReqDesc){
  INT64 v2; 
  char v3; 
  char v4; 
  __int64 v5; 
  __int64 v6; 
  UINT8 v7; 
  _REQ_DESC v8; 
  char v9; 
  _DEVICE_NODE *LegacyBusDeviceNode; 
  _DEVICE_OBJECT *PhysicalDeviceObject; 
  UINT8 v12; 
  __int64 v13; 
  UINT8 v14; 
  INT64 v15; 
  _PI_RESOURCE_TRANSLATOR_ENTRY *v16; 
  _DEVICE_NODE *v17; 
  NTSTATUS result; 
  __int16 v19; 
  int v20; 
  __int16 v21; 
  int v22; 
  VOID **v23; 
  VOID **v24; 
  _QWORD *v25; 
  _QWORD *v26; 
  _LIST_ENTRY *v27; 
  _REQ_DESC *v28; 
  UINT8 v29; 
  char v30; 
  VOID *v31; 
  unsigned __int64 PoolWithTag; 
  _LIST_ENTRY *Blink; 
  VOID *v34; 
  INT64 v35; 
  INT64 v36; 
  VOID *v37; 
  _REQ_DESC *TranslatedReqDesc; 
  INT64 v39; 
  INT64 v40; 
  INT64 v41; 
  _BYTE savedregs[64]; 
  char v43; 
  char v44; 
  VOID *Interface; 
  VOID *HandlerEntry; 

  v2 = *((_QWORD *)ReqDesc + 9);
  v3 = 0;
  HandlerEntry = 0i64;
  v4 = 0;
  v39 = v2;
  v5 = *((_QWORD *)ReqDesc + 4);
  TranslatedReqDesc = 0i64;
  v44 = 1;
  v37 = 0i64;
  v6 = *(_QWORD *)(v5 + 64);
  Interface = 0i64;
  v7 = *(_BYTE *)(v6 + 1);
  v8 = ReqDesc[20];
  if( v7 == 7 )
    v7 = 3;
  if( v8 != 1 || (v9 = 1, *ReqDesc) )
    v9 = 0;
  v43 = v9;
  if( !v2 || v8 == 1 )
    LegacyBusDeviceNode = (_DEVICE_NODE *)*(&PnpReplaceEvent + 831);
  else
    LegacyBusDeviceNode = *(_DEVICE_NODE **)(*(_QWORD *)(v2 + 312) + 40i64);
  if( !LegacyBusDeviceNode )
    return -1073741686;
  while( 1 )
  {
    if( LegacyBusDeviceNode != (_DEVICE_NODE *)*(&PnpReplaceEvent + 831) || v4 || v9 )
    {
      if( v3 )
        goto LABEL_17;
      PhysicalDeviceObject = LegacyBusDeviceNode->PhysicalDeviceObject;
      if( PhysicalDeviceObject == (_DEVICE_OBJECT *)v2 )
        goto LABEL_17;
      if( IopFindResourceHandlerInfo(ResourceArbiter, LegacyBusDeviceNode, v7, &HandlerEntry) )
        goto LABEL_13;
      if( v7 > 0xFu )
        v21 = 0;
      else
        v21 = 1 << v7;
      IopQueryResourceHandlerInterface(ResourceArbiter, PhysicalDeviceObject, v12, &Interface);
      LegacyBusDeviceNode->QueryArbiterMask |= v21;
      if( v22 >= 0 )
      {
        v34 = Interface;
      }
      else
      {
        LegacyBusDeviceNode->NoArbiterMask |= v21;
        if( v7 <= 0xFu )
        {
LABEL_13:
          v13 = (__int64)HandlerEntry;
LABEL_14:
          if( v13 )
          {
            v3 = 1;
            if( (*(_DWORD *)(*(_QWORD *)(v13 + 24) + 40i64) & 1) != 0
              && IopCallArbiter((_PI_RESOURCE_ARBITER_ENTRY *)v13, ArbiterActionQueryArbitrate, *((VOID **)ReqDesc + 4)) < 0 )
            {
              v3 = 0;
            }
            else
            {
              *((_QWORD *)ReqDesc + 36) = v13;
              *(_WORD *)(v13 + 104) = 0;
            }
          }
LABEL_17:
          if( !v44 )
          {
LABEL_24:
            LegacyBusDeviceNode = LegacyBusDeviceNode->Parent;
            v9 = v43;
            goto LABEL_25;
          }
          if( IopFindResourceHandlerInfo(ResourceTranslator, LegacyBusDeviceNode, v7, &v37) )
            goto LABEL_19;
          if( v7 > 0xFu )
            v19 = 0;
          else
            v19 = 1 << v7;
          IopQueryResourceHandlerInterface(
            ResourceTranslator,
            LegacyBusDeviceNode->PhysicalDeviceObject,
            v14,
            &Interface);
          LegacyBusDeviceNode->QueryTranslatorMask |= v19;
          if( v20 >= 0 )
          {
            v31 = Interface;
          }
          else
          {
            LegacyBusDeviceNode->NoTranslatorMask |= v19;
            if( v7 <= 0xFu )
            {
LABEL_19:
              v16 = (_PI_RESOURCE_TRANSLATOR_ENTRY *)v37;
LABEL_20:
              if( v16 )
                v4 = 1;
              if( !v3 && v16 )
              {
                IopTranslateAndAdjustReqDesc(
                  *((_REQ_DESC **)ReqDesc + 4),
                  v16,
                  &TranslatedReqDesc,
                  v15,
                  v35,
                  v36,
                  (INT64)v37,
                  (INT64)TranslatedReqDesc,
                  v39,
                  v40,
                  v41,
                  *(INT64 *)savedregs,
                  *(INT64 *)&savedregs[8],
                  *(UINT64 *)&savedregs[16]);
                if( result < 0 )
                  return result;
                v28 = TranslatedReqDesc;
                v29 = *(_BYTE *)(*((_QWORD *)TranslatedReqDesc + 8) + 1i64);
                *((_QWORD *)TranslatedReqDesc + 4) = *((_QWORD *)ReqDesc + 4);
                v7 = v29;
                if( v29 == 7 )
                  v7 = 3;
                v30 = v44;
                *((_QWORD *)ReqDesc + 4) = v28;
                if( result == 288 )
                  v30 = 0;
                v44 = v30;
              }
              goto LABEL_24;
            }
            v31 = 0i64;
            Interface = 0i64;
          }
          PoolWithTag = (unsigned __int64)ExAllocatePoolWithTag(1ui64, 0x28ui64, 538996816i64);
          if( !PoolWithTag )
            return -1073741670;
          *(_BYTE *)(PoolWithTag + 16) = v7;
          *(_QWORD *)(PoolWithTag + 8) = PoolWithTag;
          *(_QWORD *)PoolWithTag = PoolWithTag;
          *(_QWORD *)(PoolWithTag + 24) = v31;
          *(_QWORD *)(PoolWithTag + 32) = LegacyBusDeviceNode;
          Blink = LegacyBusDeviceNode->DeviceTranslatorList.Blink;
          if( Blink->Flink != &LegacyBusDeviceNode->DeviceTranslatorList )
            goto LABEL_68;
          *(_QWORD *)(PoolWithTag + 8) = Blink;
          *(_QWORD *)PoolWithTag = &LegacyBusDeviceNode->DeviceTranslatorList;
          Blink->Flink = (_LIST_ENTRY *)PoolWithTag;
          v16 = (_PI_RESOURCE_TRANSLATOR_ENTRY *)(PoolWithTag & -(__int64)(v31 != 0i64));
          LegacyBusDeviceNode->DeviceTranslatorList.Blink = (_LIST_ENTRY *)PoolWithTag;
          v37 = v16;
          goto LABEL_20;
        }
        v34 = 0i64;
        Interface = 0i64;
      }
      v23 = ExAllocatePoolWithTag(1ui64, 0x70ui64, 538996816i64);
      v24 = v23;
      if( !v23 )
        return -1073741670;
      *((_WORD *)v23 + 52) = 0;
      v23[12] = v23 + 11;
      v23[11] = v23 + 11;
      v23[10] = v23 + 9;
      v23[9] = v23 + 9;
      v25 = v23 + 5;
      v23[6] = v23 + 5;
      v26 = v23 + 7;
      *v25 = v25;
      v26[1] = v26;
      *v26 = v26;
      v24[1] = v24;
      *v24 = v24;
      *((_BYTE *)v24 + 16) = v7;
      v24[4] = LegacyBusDeviceNode;
      v27 = LegacyBusDeviceNode->DeviceArbiterList.Blink;
      if( v27->Flink != &LegacyBusDeviceNode->DeviceArbiterList )
LABEL_68:
        __fastfail(3u);
      *v24 = &LegacyBusDeviceNode->DeviceArbiterList;
      v24[1] = v27;
      v27->Flink = (_LIST_ENTRY *)v24;
      LegacyBusDeviceNode->DeviceArbiterList.Blink = (_LIST_ENTRY *)v24;
      v24[3] = v34;
      v13 = (unsigned __int64)v24 & -(__int64)(v34 != 0i64);
      HandlerEntry = (VOID *)v13;
      goto LABEL_14;
    }
    v43 = 1;
    LegacyBusDeviceNode = IopFindLegacyBusDeviceNode((_INTERFACE_TYPE)*ReqDesc, (unsigned int)ReqDesc[1]);
    if( LegacyBusDeviceNode == v17 && !**(_DWORD **)(*((_QWORD *)ReqDesc + 2) + 8i64) )
      LegacyBusDeviceNode = IopFindLegacyBusDeviceNode(Isa, 0i64);
LABEL_25:
    if( !LegacyBusDeviceNode )
      break;
    v2 = v39;
  }
  if( !v3 )
    return -1073741686;
  return 0;
}

Referenced by: