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https://github.com/hashcat/hashcat.git
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524 lines
13 KiB
C++
524 lines
13 KiB
C++
static const uint MaxVolumes=65535;
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RecVolumes5::RecVolumes5(RAROptions *Cmd,bool TestOnly)
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{
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RealBuf=NULL;
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RealReadBuffer=NULL;
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DataCount=0;
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RecCount=0;
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TotalCount=0;
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RecBufferSize=0;
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#ifdef RAR_SMP
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MaxUserThreads=Cmd->Threads;
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#else
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MaxUserThreads=1;
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#endif
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ThreadData=new RecRSThreadData[MaxUserThreads];
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for (uint I=0;I<MaxUserThreads;I++)
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{
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ThreadData[I].RecRSPtr=this;
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ThreadData[I].RS=NULL;
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}
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if (TestOnly)
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{
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#ifdef RAR_SMP
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RecThreadPool=NULL;
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#endif
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}
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else
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{
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#ifdef RAR_SMP
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RecThreadPool=new ThreadPool(MaxUserThreads);
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#endif
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RealBuf=new byte[TotalBufferSize+SSE_ALIGNMENT];
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Buf=(byte *)ALIGN_VALUE(RealBuf,SSE_ALIGNMENT);
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}
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}
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RecVolumes5::~RecVolumes5()
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{
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delete[] RealBuf;
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delete[] RealReadBuffer;
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for (uint I=0;I<RecItems.Size();I++)
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delete RecItems[I].f;
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for (uint I=0;I<MaxUserThreads;I++)
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delete ThreadData[I].RS;
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delete[] ThreadData;
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#ifdef RAR_SMP
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delete RecThreadPool;
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#endif
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}
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#ifdef RAR_SMP
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THREAD_PROC(RecThreadRS)
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{
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RecRSThreadData *td=(RecRSThreadData *)Data;
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td->RecRSPtr->ProcessAreaRS(td);
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}
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#endif
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void RecVolumes5::ProcessRS(RAROptions *Cmd,uint DataNum,const byte *Data,uint MaxRead,bool Encode)
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{
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/*
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RSCoder16 RS;
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RS.Init(DataCount,RecCount,Encode ? NULL:ValidFlags);
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uint Count=Encode ? RecCount : MissingVolumes;
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for (uint I=0;I<Count;I++)
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RS.UpdateECC(DataNum, I, Data, Buf+I*RecBufferSize, MaxRead);
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*/
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uint ThreadNumber=MaxUserThreads;
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const uint MinThreadBlock=0x1000;
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ThreadNumber=Min(ThreadNumber,MaxRead/MinThreadBlock);
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if (ThreadNumber<1)
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ThreadNumber=1;
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uint ThreadDataSize=MaxRead/ThreadNumber;
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ThreadDataSize+=(ThreadDataSize&1); // Must be even for 16-bit RS coder.
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#ifdef USE_SSE
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ThreadDataSize=ALIGN_VALUE(ThreadDataSize,SSE_ALIGNMENT); // Alignment for SSE operations.
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#endif
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if (ThreadDataSize<MinThreadBlock)
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ThreadDataSize=MinThreadBlock;
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for (size_t I=0,CurPos=0;I<ThreadNumber && CurPos<MaxRead;I++)
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{
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RecRSThreadData *td=ThreadData+I;
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if (td->RS==NULL)
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{
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td->RS=new RSCoder16;
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td->RS->Init(DataCount,RecCount,Encode ? NULL:ValidFlags);
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}
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td->DataNum=DataNum;
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td->Data=Data;
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td->Encode=Encode;
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td->StartPos=CurPos;
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size_t EndPos=CurPos+ThreadDataSize;
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if (EndPos>MaxRead || I==ThreadNumber-1)
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EndPos=MaxRead;
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td->Size=EndPos-CurPos;
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CurPos=EndPos;
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#ifdef RAR_SMP
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if (ThreadNumber>1)
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RecThreadPool->AddTask(RecThreadRS,(void*)td);
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else
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ProcessAreaRS(td);
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#else
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ProcessAreaRS(td);
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#endif
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}
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#ifdef RAR_SMP
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RecThreadPool->WaitDone();
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#endif // RAR_SMP
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}
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void RecVolumes5::ProcessAreaRS(RecRSThreadData *td)
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{
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uint Count=td->Encode ? RecCount : MissingVolumes;
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for (uint I=0;I<Count;I++)
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td->RS->UpdateECC(td->DataNum, I, td->Data+td->StartPos, Buf+I*RecBufferSize+td->StartPos, td->Size);
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}
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bool RecVolumes5::Restore(RAROptions *Cmd,const wchar *Name,bool Silent)
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{
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wchar ArcName[NM];
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wcsncpyz(ArcName,Name,ASIZE(ArcName));
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wchar *Num=GetVolNumPart(ArcName);
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while (Num>ArcName && IsDigit(*(Num-1)))
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Num--;
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if (Num==ArcName)
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return false; // Numeric part is missing or entire volume name is numeric, not possible for RAR or REV volume.
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wcsncpyz(Num,L"*.*",ASIZE(ArcName)-(Num-ArcName));
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wchar FirstVolName[NM];
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*FirstVolName=0;
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int64 RecFileSize=0;
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FindFile VolFind;
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VolFind.SetMask(ArcName);
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FindData fd;
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uint FoundRecVolumes=0;
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while (VolFind.Next(&fd))
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{
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Wait();
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Archive *Vol=new Archive(Cmd);
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int ItemPos=-1;
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if (Vol->WOpen(fd.Name))
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{
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if (CmpExt(fd.Name,L"rev"))
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{
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uint RecNum=ReadHeader(Vol,FoundRecVolumes==0);
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if (RecNum!=0)
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{
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if (FoundRecVolumes==0)
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RecFileSize=Vol->FileLength();
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ItemPos=RecNum;
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FoundRecVolumes++;
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}
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}
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else
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if (Vol->IsArchive(true) && (Vol->SFXSize>0 || CmpExt(fd.Name,L"rar")))
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{
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if (!Vol->Volume && !Vol->BrokenHeader)
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{
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uiMsg(UIERROR_NOTVOLUME,ArcName);
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return false;
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}
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// We work with archive as with raw data file, so we do not want
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// to spend time to QOpen I/O redirection.
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Vol->QOpenUnload();
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Vol->Seek(0,SEEK_SET);
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// RAR volume found. Get its number, store the handle in appropriate
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// array slot, clean slots in between if we had to grow the array.
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wchar *Num=GetVolNumPart(fd.Name);
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uint VolNum=0;
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for (uint K=1;Num>=fd.Name && IsDigit(*Num);K*=10,Num--)
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VolNum+=(*Num-'0')*K;
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if (VolNum==0 || VolNum>MaxVolumes)
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continue;
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size_t CurSize=RecItems.Size();
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if (VolNum>CurSize)
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{
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RecItems.Alloc(VolNum);
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for (size_t I=CurSize;I<VolNum;I++)
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RecItems[I].f=NULL;
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}
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ItemPos=VolNum-1;
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if (*FirstVolName==0)
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VolNameToFirstName(fd.Name,FirstVolName,ASIZE(FirstVolName),true);
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}
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}
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if (ItemPos==-1)
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delete Vol; // Skip found file, it is not RAR or REV volume.
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else
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if ((uint)ItemPos<RecItems.Size()) // Check if found more REV than needed.
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{
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// Store found RAR or REV volume.
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RecVolItem *Item=RecItems+ItemPos;
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Item->f=Vol;
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Item->New=false;
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wcsncpyz(Item->Name,fd.Name,ASIZE(Item->Name));
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}
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}
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if (!Silent || FoundRecVolumes!=0)
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uiMsg(UIMSG_RECVOLFOUND,FoundRecVolumes);
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if (FoundRecVolumes==0)
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return false;
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uiMsg(UIMSG_RECVOLCALCCHECKSUM);
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MissingVolumes=0;
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for (uint I=0;I<TotalCount;I++)
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{
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RecVolItem *Item=&RecItems[I];
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if (Item->f!=NULL)
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{
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uiMsg(UIMSG_STRING,Item->Name);
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uint RevCRC;
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CalcFileSum(Item->f,&RevCRC,NULL,MaxUserThreads,INT64NDF,CALCFSUM_CURPOS);
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Item->Valid=RevCRC==Item->CRC;
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if (!Item->Valid)
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{
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uiMsg(UIMSG_CHECKSUM,Item->Name);
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// Close only corrupt REV volumes here. We'll close and rename corrupt
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// RAR volumes later, if we'll know that recovery is possible.
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if (I>=DataCount)
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{
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Item->f->Close();
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Item->f=NULL;
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FoundRecVolumes--;
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}
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}
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}
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if (I<DataCount && (Item->f==NULL || !Item->Valid))
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MissingVolumes++;
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}
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uiMsg(UIMSG_RECVOLMISSING,MissingVolumes);
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if (MissingVolumes==0)
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{
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uiMsg(UIERROR_RECVOLALLEXIST);
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return false;
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}
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if (MissingVolumes>FoundRecVolumes)
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{
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uiMsg(UIERROR_RECVOLFOUND,FoundRecVolumes); // Intentionally not displayed in console mode.
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uiMsg(UIERROR_RECVOLCANNOTFIX);
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return false;
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}
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uiMsg(UIMSG_RECONSTRUCTING);
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// Create missing and rename bad volumes.
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uint64 MaxVolSize=0;
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for (uint I=0;I<DataCount;I++)
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{
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RecVolItem *Item=&RecItems[I];
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if (Item->FileSize>MaxVolSize)
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MaxVolSize=Item->FileSize;
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if (Item->f!=NULL && !Item->Valid)
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{
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Item->f->Close();
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wchar NewName[NM];
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wcsncpyz(NewName,Item->Name,ASIZE(NewName));
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wcsncatz(NewName,L".bad",ASIZE(NewName));
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uiMsg(UIMSG_BADARCHIVE,Item->Name);
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uiMsg(UIMSG_RENAMING,Item->Name,NewName);
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RenameFile(Item->Name,NewName);
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delete Item->f;
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Item->f=NULL;
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}
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if ((Item->New=(Item->f==NULL))) // Additional parentheses to avoid GCC warning.
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{
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wcsncpyz(Item->Name,FirstVolName,ASIZE(Item->Name));
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uiMsg(UIMSG_CREATING,Item->Name);
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uiMsg(UIEVENT_NEWARCHIVE,Item->Name);
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File *NewVol=new File;
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bool UserReject;
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if (!FileCreate(Cmd,NewVol,Item->Name,ASIZE(Item->Name),&UserReject))
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{
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if (!UserReject)
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ErrHandler.CreateErrorMsg(Item->Name);
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ErrHandler.Exit(UserReject ? RARX_USERBREAK:RARX_CREATE);
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}
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NewVol->Prealloc(Item->FileSize);
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Item->f=NewVol;
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Item->New=true;
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}
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NextVolumeName(FirstVolName,ASIZE(FirstVolName),false);
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}
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int64 ProcessedSize=0;
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int LastPercent=-1;
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mprintf(L" ");
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// Even though we already preliminary calculated missing volume number,
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// let's do it again now, when we have the final and exact information.
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MissingVolumes=0;
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ValidFlags=new bool[TotalCount];
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for (uint I=0;I<TotalCount;I++)
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{
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ValidFlags[I]=RecItems[I].f!=NULL && !RecItems[I].New;
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if (I<DataCount && !ValidFlags[I])
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MissingVolumes++;
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}
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// Size of per file buffer.
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RecBufferSize=TotalBufferSize/MissingVolumes;
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if ((RecBufferSize&1)==1) // Must be even for our RS16 codec.
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RecBufferSize--;
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#ifdef USE_SSE
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RecBufferSize&=~(SSE_ALIGNMENT-1); // Align for SSE.
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#endif
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uint *Data=new uint[TotalCount];
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RSCoder16 RS;
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if (!RS.Init(DataCount,RecCount,ValidFlags))
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{
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delete[] ValidFlags;
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delete[] Data;
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return false; // Should not happen, we check parameter validity above.
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}
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RealReadBuffer=new byte[RecBufferSize+SSE_ALIGNMENT];
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byte *ReadBuf=(byte *)ALIGN_VALUE(RealReadBuffer,SSE_ALIGNMENT);
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while (true)
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{
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Wait();
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int MaxRead=0;
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for (uint I=0,J=DataCount;I<DataCount;I++)
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{
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uint VolNum=I;
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if (!ValidFlags[I]) // If next RAR volume is missing or invalid.
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{
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while (!ValidFlags[J]) // Find next valid REV volume.
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J++;
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VolNum=J++; // Use next valid REV volume data instead of RAR.
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}
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RecVolItem *Item=RecItems+VolNum;
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byte *B=&ReadBuf[0];
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int ReadSize=0;
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if (Item->f!=NULL && !Item->New)
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ReadSize=Item->f->Read(B,RecBufferSize);
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if (ReadSize!=RecBufferSize)
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memset(B+ReadSize,0,RecBufferSize-ReadSize);
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if (ReadSize>MaxRead)
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MaxRead=ReadSize;
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// We can have volumes of different size. Let's use data chunk
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// for largest volume size.
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uint DataToProcess=(uint)Min(RecBufferSize,MaxVolSize-ProcessedSize);
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ProcessRS(Cmd,I,B,DataToProcess,false);
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}
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if (MaxRead==0)
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break;
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for (uint I=0,J=0;I<DataCount;I++)
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if (!ValidFlags[I])
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{
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RecVolItem *Item=RecItems+I;
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size_t WriteSize=(size_t)Min(MaxRead,Item->FileSize);
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Item->f->Write(Buf+(J++)*RecBufferSize,WriteSize);
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Item->FileSize-=WriteSize;
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}
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int CurPercent=ToPercent(ProcessedSize,RecFileSize);
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if (!Cmd->DisablePercentage && CurPercent!=LastPercent)
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{
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uiProcessProgress("RV",ProcessedSize,RecFileSize);
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LastPercent=CurPercent;
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}
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ProcessedSize+=MaxRead;
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}
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for (uint I=0;I<TotalCount;I++)
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if (RecItems[I].f!=NULL)
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RecItems[I].f->Close();
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delete[] ValidFlags;
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delete[] Data;
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#if !defined(SILENT)
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if (!Cmd->DisablePercentage)
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mprintf(L"\b\b\b\b100%%");
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if (!Silent && !Cmd->DisableDone)
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mprintf(St(MDone));
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#endif
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return true;
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}
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uint RecVolumes5::ReadHeader(File *RecFile,bool FirstRev)
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{
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const size_t FirstReadSize=REV5_SIGN_SIZE+8;
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byte ShortBuf[FirstReadSize];
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if (RecFile->Read(ShortBuf,FirstReadSize)!=FirstReadSize)
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return 0;
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if (memcmp(ShortBuf,REV5_SIGN,REV5_SIGN_SIZE)!=0)
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return 0;
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uint HeaderSize=RawGet4(ShortBuf+REV5_SIGN_SIZE+4);
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if (HeaderSize>0x100000 || HeaderSize<=5)
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return 0;
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uint BlockCRC=RawGet4(ShortBuf+REV5_SIGN_SIZE);
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RawRead Raw(RecFile);
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if (Raw.Read(HeaderSize)!=HeaderSize)
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return 0;
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// Calculate CRC32 of entire header including 4 byte size field.
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uint CalcCRC=CRC32(0xffffffff,ShortBuf+REV5_SIGN_SIZE+4,4);
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if ((CRC32(CalcCRC,Raw.GetDataPtr(),HeaderSize)^0xffffffff)!=BlockCRC)
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return 0;
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if (Raw.Get1()!=1) // Version check.
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return 0;
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DataCount=Raw.Get2();
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RecCount=Raw.Get2();
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TotalCount=DataCount+RecCount;
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uint RecNum=Raw.Get2(); // Number of recovery volume.
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if (RecNum>=TotalCount || TotalCount>MaxVolumes)
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return 0;
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uint RevCRC=Raw.Get4(); // CRC of current REV volume.
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if (FirstRev)
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{
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// If we have read the first valid REV file, init data structures
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// using information from REV header.
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size_t CurSize=RecItems.Size();
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RecItems.Alloc(TotalCount);
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for (size_t I=CurSize;I<TotalCount;I++)
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RecItems[I].f=NULL;
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for (uint I=0;I<DataCount;I++)
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{
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RecItems[I].FileSize=Raw.Get8();
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RecItems[I].CRC=Raw.Get4();
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}
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}
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RecItems[RecNum].CRC=RevCRC; // Assign it here, after allocating RecItems.
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return RecNum;
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}
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void RecVolumes5::Test(RAROptions *Cmd,const wchar *Name)
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{
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wchar VolName[NM];
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wcsncpyz(VolName,Name,ASIZE(VolName));
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uint FoundRecVolumes=0;
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while (FileExist(VolName))
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{
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File CurFile;
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if (!CurFile.Open(VolName))
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{
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ErrHandler.OpenErrorMsg(VolName); // It also sets RARX_OPEN.
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continue;
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}
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if (!uiStartFileExtract(VolName,false,true,false))
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return;
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mprintf(St(MExtrTestFile),VolName);
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mprintf(L" ");
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bool Valid=false;
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uint RecNum=ReadHeader(&CurFile,FoundRecVolumes==0);
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if (RecNum!=0)
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{
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FoundRecVolumes++;
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uint RevCRC;
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CalcFileSum(&CurFile,&RevCRC,NULL,1,INT64NDF,CALCFSUM_CURPOS|(Cmd->DisablePercentage ? 0 : CALCFSUM_SHOWPROGRESS));
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Valid=RevCRC==RecItems[RecNum].CRC;
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}
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if (Valid)
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{
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mprintf(L"%s%s ",L"\b\b\b\b\b ",St(MOk));
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}
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else
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{
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uiMsg(UIERROR_CHECKSUM,VolName,VolName);
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ErrHandler.SetErrorCode(RARX_CRC);
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}
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NextVolumeName(VolName,ASIZE(VolName),false);
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}
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}
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