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Revert "Revert "mount: fake support for socket/block/character/fifo devices""

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This reverts commit 3d5cb7eb86.
This commit is contained in:
Chris Lu 2021-01-18 01:15:07 -08:00
parent 67faa56920
commit 5a3386e39b
1 changed files with 51 additions and 46 deletions
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97
weed/filesys/dir.go
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@ -128,44 +128,9 @@ func (dir *Dir) newDirectory(fullpath util.FullPath, entry *filer_pb.Entry) fs.N
func (dir *Dir) Create(ctx context.Context, req *fuse.CreateRequest,
resp *fuse.CreateResponse) (fs.Node, fs.Handle, error) {
request := &filer_pb.CreateEntryRequest{
Directory: dir.FullPath(),
Entry: &filer_pb.Entry{
Name: req.Name,
IsDirectory: req.Mode&os.ModeDir > 0,
Attributes: &filer_pb.FuseAttributes{
Mtime: time.Now().Unix(),
Crtime: time.Now().Unix(),
FileMode: uint32(req.Mode &^ dir.wfs.option.Umask),
Uid: req.Uid,
Gid: req.Gid,
Collection: dir.wfs.option.Collection,
Replication: dir.wfs.option.Replication,
TtlSec: dir.wfs.option.TtlSec,
},
},
OExcl: req.Flags&fuse.OpenExclusive != 0,
Signatures: []int32{dir.wfs.signature},
}
glog.V(1).Infof("create %s/%s: %v", dir.FullPath(), req.Name, req.Flags)
request, err := dir.doCreateEntry(req.Name, req.Mode, req.Uid, req.Gid, req.Flags&fuse.OpenExclusive != 0)
if err := dir.wfs.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
dir.wfs.mapPbIdFromLocalToFiler(request.Entry)
defer dir.wfs.mapPbIdFromFilerToLocal(request.Entry)
if err := filer_pb.CreateEntry(client, request); err != nil {
if strings.Contains(err.Error(), "EEXIST") {
return fuse.EEXIST
}
glog.V(0).Infof("create %s/%s: %v", dir.FullPath(), req.Name, err)
return fuse.EIO
}
dir.wfs.metaCache.InsertEntry(context.Background(), filer.FromPbEntry(request.Directory, request.Entry))
return nil
}); err != nil {
if err != nil {
return nil, nil, err
}
var node fs.Node
@ -182,17 +147,57 @@ func (dir *Dir) Create(ctx context.Context, req *fuse.CreateRequest,
}
func (dir *Dir) Mknod(ctx context.Context, req *fuse.MknodRequest) (fs.Node, error) {
if req.Mode&os.ModeNamedPipe != 0 {
glog.V(1).Infof("mknod named pipe %s", req.String())
return nil, fuse.ENOSYS
request, err := dir.doCreateEntry(req.Name, req.Mode, req.Uid, req.Gid, false)
if err != nil {
return nil, err
}
if req.Mode&req.Mode&os.ModeSocket != 0 {
glog.V(1).Infof("mknod socket %s", req.String())
return nil, fuse.ENOSYS
var node fs.Node
node = dir.newFile(req.Name, request.Entry)
return node, nil
}
func (dir *Dir) doCreateEntry(name string, mode os.FileMode, uid, gid uint32, exlusive bool) (*filer_pb.CreateEntryRequest, error) {
request := &filer_pb.CreateEntryRequest{
Directory: dir.FullPath(),
Entry: &filer_pb.Entry{
Name: name,
IsDirectory: mode&os.ModeDir > 0,
Attributes: &filer_pb.FuseAttributes{
Mtime: time.Now().Unix(),
Crtime: time.Now().Unix(),
FileMode: uint32(mode &^ dir.wfs.option.Umask),
Uid: uid,
Gid: gid,
Collection: dir.wfs.option.Collection,
Replication: dir.wfs.option.Replication,
TtlSec: dir.wfs.option.TtlSec,
},
},
OExcl: exlusive,
Signatures: []int32{dir.wfs.signature},
}
// not going to support mknod for normal files either
glog.V(1).Infof("mknod %s", req.String())
return nil, fuse.ENOSYS
glog.V(1).Infof("create %s/%s: %v", dir.FullPath(), name)
err := dir.wfs.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
dir.wfs.mapPbIdFromLocalToFiler(request.Entry)
defer dir.wfs.mapPbIdFromFilerToLocal(request.Entry)
if err := filer_pb.CreateEntry(client, request); err != nil {
if strings.Contains(err.Error(), "EEXIST") {
return fuse.EEXIST
}
glog.V(0).Infof("create %s/%s: %v", dir.FullPath(), name, err)
return fuse.EIO
}
dir.wfs.metaCache.InsertEntry(context.Background(), filer.FromPbEntry(request.Directory, request.Entry))
return nil
})
return request, err
}
func (dir *Dir) Mkdir(ctx context.Context, req *fuse.MkdirRequest) (fs.Node, error) {