func (decoderData *decoderData) addSpecialFile(header *tar.Header,
parent *filesystem.DirectoryInode, name string) error {
var newInode filesystem.SpecialInode
if header.Typeflag == tar.TypeChar {
newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
syscall.S_IFCHR)
} else if header.Typeflag == tar.TypeBlock {
newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
syscall.S_IFBLK)
} else if header.Typeflag == tar.TypeFifo {
newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
syscall.S_IFIFO)
} else {
return errors.New(fmt.Sprintf("unsupported type: %v", header.Typeflag))
}
newInode.Uid = uint32(header.Uid)
newInode.Gid = uint32(header.Gid)
newInode.MtimeNanoSeconds = int32(header.ModTime.Nanosecond())
newInode.MtimeSeconds = header.ModTime.Unix()
if header.Devminor > 255 {
return errors.New(fmt.Sprintf("minor device number: %d too large",
header.Devminor))
}
newInode.Rdev = uint64(header.Devmajor<<8 | header.Devminor)
decoderData.addEntry(parent, header.Name, name, &newInode)
return nil
}
func (decoderData *decoderData) addFile(header *tar.Header,
parent *filesystem.Directory, name string) error {
var newInode filesystem.Inode
if header.Typeflag == tar.TypeChar {
newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
syscall.S_IFCHR)
} else if header.Typeflag == tar.TypeBlock {
newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
syscall.S_IFBLK)
} else if header.Typeflag == tar.TypeFifo {
newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
syscall.S_IFIFO)
} else {
return errors.New(fmt.Sprintf("unsupported type: %v", header.Typeflag))
}
newInode.Uid = uint32(header.Uid)
newInode.Gid = uint32(header.Gid)
newInode.MtimeNanoSeconds = int32(header.ModTime.Nanosecond())
newInode.MtimeSeconds = header.ModTime.Unix()
if header.Devminor > 255 {
return errors.New(fmt.Sprintf("minor device number: %d too large",
header.Devminor))
}
newInode.Rdev = uint64(header.Devmajor<<8 | header.Devminor)
decoderData.inodeTable[header.Name] = decoderData.nextInodeNumber
decoderData.fileSystem.InodeTable[decoderData.nextInodeNumber] =
&newInode
var newEntry filesystem.File
newEntry.Name = name
newEntry.InodeNumber = decoderData.nextInodeNumber
parent.FileList = append(parent.FileList, &newEntry)
decoderData.nextInodeNumber++
return nil
}
func addDirectory(dirent, oldDirent *filesystem.DirectoryEntry,
fileSystem, oldFS *FileSystem,
directoryPathName string, stat *syscall.Stat_t) error {
myPathName := path.Join(directoryPathName, dirent.Name)
if stat.Ino == fileSystem.inodeNumber {
return errors.New("Recursive directory: " + myPathName)
}
if _, ok := fileSystem.InodeTable[stat.Ino]; ok {
return errors.New("Hardlinked directory: " + myPathName)
}
inode := new(filesystem.DirectoryInode)
dirent.SetInode(inode)
fileSystem.InodeTable[stat.Ino] = inode
inode.Mode = filesystem.FileMode(stat.Mode)
inode.Uid = stat.Uid
inode.Gid = stat.Gid
var oldInode *filesystem.DirectoryInode
if oldDirent != nil {
if oi, ok := oldDirent.Inode().(*filesystem.DirectoryInode); ok {
oldInode = oi
}
}
err, copied := scanDirectory(inode, oldInode, fileSystem, oldFS, myPathName)
if err != nil {
return err
}
if copied && filesystem.CompareDirectoriesMetadata(inode, oldInode, nil) {
dirent.SetInode(oldInode)
fileSystem.InodeTable[stat.Ino] = oldInode
}
fileSystem.DirectoryCount++
return nil
}
func makeSpecialInode(stat *syscall.Stat_t) *filesystem.SpecialInode {
var inode filesystem.SpecialInode
inode.Mode = filesystem.FileMode(stat.Mode)
inode.Uid = stat.Uid
inode.Gid = stat.Gid
inode.MtimeSeconds = stat.Mtim.Sec
inode.MtimeNanoSeconds = int32(stat.Mtim.Nsec)
inode.Rdev = stat.Rdev
return &inode
}
func makeRegularInode(stat *syscall.Stat_t) *filesystem.RegularInode {
var inode filesystem.RegularInode
inode.Mode = filesystem.FileMode(stat.Mode)
inode.Uid = stat.Uid
inode.Gid = stat.Gid
inode.MtimeSeconds = stat.Mtim.Sec
inode.MtimeNanoSeconds = int32(stat.Mtim.Nsec)
inode.Size = uint64(stat.Size)
return &inode
}
func (decoderData *decoderData) addDirectory(header *tar.Header,
parent *filesystem.Directory, name string) error {
var newEntry filesystem.Directory
newEntry.Name = name
newEntry.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
syscall.S_IFDIR)
newEntry.Uid = uint32(header.Uid)
newEntry.Gid = uint32(header.Gid)
parent.DirectoryList = append(parent.DirectoryList, &newEntry)
decoderData.directoryTable[header.Name] = &newEntry
return nil
}
func pushFile(getSubClient getSubClientFunc, source, dest string) error {
var sourceStat wsyscall.Stat_t
if err := wsyscall.Stat(source, &sourceStat); err != nil {
return err
}
sourceFile, err := os.Open(source)
if err != nil {
return err
}
defer sourceFile.Close()
srpcClient := getSubClient()
objClient := objclient.AttachObjectClient(srpcClient)
defer objClient.Close()
if err != nil {
return err
}
hashVal, _, err := objClient.AddObject(sourceFile, uint64(sourceStat.Size),
nil)
if err != nil {
return err
}
newRegularInode := &filesystem.RegularInode{
Mode: filesystem.FileMode(sourceStat.Mode),
Uid: sourceStat.Uid,
Gid: sourceStat.Gid,
MtimeNanoSeconds: int32(sourceStat.Mtim.Nsec),
MtimeSeconds: sourceStat.Mtim.Sec,
Size: uint64(sourceStat.Size),
Hash: hashVal}
newInode := sub.Inode{Name: dest, GenericInode: newRegularInode}
var updateRequest sub.UpdateRequest
var updateReply sub.UpdateResponse
updateRequest.Wait = true
updateRequest.InodesToMake = append(updateRequest.InodesToMake, newInode)
if *triggersFile != "" {
updateRequest.Triggers, err = triggers.Load(*triggersFile)
if err != nil {
return err
}
} else if *triggersString != "" {
updateRequest.Triggers, err = triggers.Decode([]byte(*triggersString))
if err != nil {
return err
}
}
startTime := showStart("Subd.Update()")
err = client.CallUpdate(srpcClient, updateRequest, &updateReply)
showTimeTaken(startTime)
return err
}
func (decoderData *decoderData) addDirectory(header *tar.Header,
parent *filesystem.DirectoryInode, name string) error {
var newInode filesystem.DirectoryInode
newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
syscall.S_IFDIR)
newInode.Uid = uint32(header.Uid)
newInode.Gid = uint32(header.Gid)
if header.Name == "/" {
*decoderData.directoryTable[header.Name] = newInode
return nil
}
decoderData.addEntry(parent, header.Name, name, &newInode)
decoderData.directoryTable[header.Name] = &newInode
return nil
}
func scanFileSystem(rootDirectoryName string,
fsScanContext *fsrateio.ReaderContext, scanFilter *filter.Filter,
checkScanDisableRequest func() bool, hasher Hasher, oldFS *FileSystem) (
*FileSystem, error) {
var fileSystem FileSystem
fileSystem.rootDirectoryName = rootDirectoryName
fileSystem.fsScanContext = fsScanContext
fileSystem.scanFilter = scanFilter
fileSystem.checkScanDisableRequest = checkScanDisableRequest
if hasher == nil {
fileSystem.hasher = GetSimpleHasher(false)
} else {
fileSystem.hasher = hasher
}
var stat wsyscall.Stat_t
if err := wsyscall.Lstat(rootDirectoryName, &stat); err != nil {
return nil, err
}
fileSystem.InodeTable = make(filesystem.InodeTable)
fileSystem.dev = stat.Dev
fileSystem.inodeNumber = stat.Ino
fileSystem.Mode = filesystem.FileMode(stat.Mode)
fileSystem.Uid = stat.Uid
fileSystem.Gid = stat.Gid
fileSystem.DirectoryCount++
var tmpInode filesystem.RegularInode
if sha512.New().Size() != len(tmpInode.Hash) {
return nil, errors.New("incompatible hash size")
}
var oldDirectory *filesystem.DirectoryInode
if oldFS != nil && oldFS.InodeTable != nil {
oldDirectory = &oldFS.DirectoryInode
}
err, _ := scanDirectory(&fileSystem.FileSystem.DirectoryInode, oldDirectory,
&fileSystem, oldFS, "/")
oldFS = nil
oldDirectory = nil
if err != nil {
return nil, err
}
fileSystem.ComputeTotalDataBytes()
if err = fileSystem.RebuildInodePointers(); err != nil {
panic(err)
}
return &fileSystem, nil
}
func (fileSystem *FileSystem) getInode(stat *syscall.Stat_t) (
*filesystem.Inode, bool) {
inode := fileSystem.InodeTable[stat.Ino]
new := false
if inode == nil {
var _inode filesystem.Inode
inode = &_inode
_inode.Mode = filesystem.FileMode(stat.Mode)
_inode.Uid = stat.Uid
_inode.Gid = stat.Gid
_inode.MtimeSeconds = stat.Mtim.Sec
_inode.MtimeNanoSeconds = int32(stat.Mtim.Nsec)
_inode.Rdev = stat.Rdev
fileSystem.InodeTable[stat.Ino] = inode
new = true
}
return inode, new
}
func addDirectory(directory *filesystem.Directory,
fileSystem, oldFS *FileSystem,
name string, directoryPathName string, stat *syscall.Stat_t) error {
myPathName := path.Join(directoryPathName, name)
if fileSystem.directoryInodeList[stat.Ino] {
return errors.New("Hardlinked directory: " + myPathName)
}
fileSystem.directoryInodeList[stat.Ino] = true
var dir filesystem.Directory
dir.Name = name
dir.Mode = filesystem.FileMode(stat.Mode)
dir.Uid = stat.Uid
dir.Gid = stat.Gid
err := scanDirectory(&dir, fileSystem, oldFS, directoryPathName)
if err != nil {
return err
}
directory.DirectoryList = append(directory.DirectoryList, &dir)
return nil
}
func scanFileSystem(rootDirectoryName string, cacheDirectoryName string,
configuration *Configuration, oldFS *FileSystem) (*FileSystem, error) {
var fileSystem FileSystem
fileSystem.configuration = configuration
fileSystem.rootDirectoryName = rootDirectoryName
fileSystem.cacheDirectoryName = cacheDirectoryName
var stat syscall.Stat_t
if err := syscall.Lstat(rootDirectoryName, &stat); err != nil {
return nil, err
}
fileSystem.InodeTable = make(filesystem.InodeTable)
fileSystem.dev = stat.Dev
fileSystem.inodeNumber = stat.Ino
fileSystem.Mode = filesystem.FileMode(stat.Mode)
fileSystem.Uid = stat.Uid
fileSystem.Gid = stat.Gid
fileSystem.DirectoryCount++
var tmpInode filesystem.RegularInode
if sha512.New().Size() != len(tmpInode.Hash) {
return nil, errors.New("Incompatible hash size")
}
var oldDirectory *filesystem.DirectoryInode
if oldFS != nil && oldFS.InodeTable != nil {
oldDirectory = &oldFS.DirectoryInode
}
err, _ := scanDirectory(&fileSystem.FileSystem.DirectoryInode, oldDirectory,
&fileSystem, oldFS, "/")
oldFS = nil
oldDirectory = nil
if err != nil {
return nil, err
}
if err = fileSystem.scanObjectCache(); err != nil {
return nil, err
}
fileSystem.ComputeTotalDataBytes()
if err = fileSystem.RebuildInodePointers(); err != nil {
panic(err)
}
return &fileSystem, nil
}
func (decoderData *decoderData) addRegularFile(tarReader *tar.Reader,
hasher Hasher, header *tar.Header, parent *filesystem.DirectoryInode,
name string) error {
var newInode filesystem.RegularInode
newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
syscall.S_IFREG)
newInode.Uid = uint32(header.Uid)
newInode.Gid = uint32(header.Gid)
newInode.MtimeNanoSeconds = int32(header.ModTime.Nanosecond())
newInode.MtimeSeconds = header.ModTime.Unix()
newInode.Size = uint64(header.Size)
if header.Size > 0 {
var err error
newInode.Hash, err = hasher.Hash(tarReader, uint64(header.Size))
if err != nil {
return err
}
}
decoderData.addEntry(parent, header.Name, name, &newInode)
return nil
}
func scanFileSystem(rootDirectoryName string, cacheDirectoryName string,
configuration *Configuration, oldFS *FileSystem) (*FileSystem, error) {
var fileSystem FileSystem
fileSystem.configuration = configuration
fileSystem.rootDirectoryName = rootDirectoryName
fileSystem.cacheDirectoryName = cacheDirectoryName
fileSystem.Name = "/"
var stat syscall.Stat_t
err := syscall.Lstat(rootDirectoryName, &stat)
if err != nil {
return nil, err
}
fileSystem.RegularInodeTable = make(filesystem.RegularInodeTable)
fileSystem.SymlinkInodeTable = make(filesystem.SymlinkInodeTable)
fileSystem.InodeTable = make(filesystem.InodeTable)
fileSystem.directoryInodeList = make(directoryInodeList)
fileSystem.directoryInodeList[stat.Ino] = true
fileSystem.dev = stat.Dev
fileSystem.Mode = filesystem.FileMode(stat.Mode)
fileSystem.Uid = stat.Uid
fileSystem.Gid = stat.Gid
var tmpInode filesystem.RegularInode
if sha512.New().Size() != len(tmpInode.Hash) {
return nil, errors.New("Incompatible hash size")
}
err = scanDirectory(&fileSystem.FileSystem.Directory, &fileSystem, oldFS,
"")
oldFS = nil
fileSystem.DirectoryCount = uint64(len(fileSystem.directoryInodeList))
fileSystem.directoryInodeList = nil
if err != nil {
return nil, err
}
err = fileSystem.scanObjectCache()
if err != nil {
return nil, err
}
fileSystem.ComputeTotalDataBytes()
return &fileSystem, nil
}
func (decoderData *decoderData) addRegularFile(tarReader *tar.Reader,
dataHandler DataHandler, header *tar.Header, parent *filesystem.Directory,
name string) error {
var newInode filesystem.RegularInode
newInode.Mode = filesystem.FileMode((header.Mode & ^syscall.S_IFMT) |
syscall.S_IFREG)
newInode.Uid = uint32(header.Uid)
newInode.Gid = uint32(header.Gid)
newInode.MtimeNanoSeconds = int32(header.ModTime.Nanosecond())
newInode.MtimeSeconds = header.ModTime.Unix()
newInode.Size = uint64(header.Size)
if header.Size > 0 {
data, err := ioutil.ReadAll(tarReader)
if err != nil {
return errors.New("error reading file data" + err.Error())
}
if int64(len(data)) != header.Size {
return errors.New(fmt.Sprintf(
"failed to read file data, wanted: %d, got: %d bytes",
header.Size, len(data)))
}
newInode.Hash, err = dataHandler.HandleData(data)
if err != nil {
return err
}
}
decoderData.regularInodeTable[header.Name] = decoderData.nextInodeNumber
decoderData.fileSystem.RegularInodeTable[decoderData.nextInodeNumber] =
&newInode
var newEntry filesystem.RegularFile
newEntry.Name = name
newEntry.InodeNumber = decoderData.nextInodeNumber
parent.RegularFileList = append(parent.RegularFileList, &newEntry)
decoderData.nextInodeNumber++
return nil
}
