rclone/cmd/mount/file.go
Nick Craig-Wood af8ba18580 mount: disable mount for freebsd
The upstream library rclone uses for rclone mount no longer supports
freebsd. Not only is it broken, but it no longer compiles.

This patch disables rclone mount for freebsd.

However all is not lost for freebsd users - compiling rclone with the
`cmount` tag, so `go install -tags cmount` will install a working
`rclone mount` command which uses cgofuse and the libfuse C library
directly.

Note that the binaries from rclone.org will not have mount support as
we don't have a freebsd build machine in CI and it is very hard to
cross compile cmount.

See: https://github.com/bazil/fuse/issues/280
Fixes #5843
2023-10-29 15:46:41 +00:00

129 lines
3.5 KiB
Go

//go:build linux
// +build linux
package mount
import (
"context"
"syscall"
"time"
"bazil.org/fuse"
fusefs "bazil.org/fuse/fs"
"github.com/rclone/rclone/fs/log"
"github.com/rclone/rclone/vfs"
)
// File represents a file
type File struct {
*vfs.File
fsys *FS
}
// Check interface satisfied
var _ fusefs.Node = (*File)(nil)
// Attr fills out the attributes for the file
func (f *File) Attr(ctx context.Context, a *fuse.Attr) (err error) {
defer log.Trace(f, "")("a=%+v, err=%v", a, &err)
a.Valid = f.fsys.opt.AttrTimeout
modTime := f.File.ModTime()
Size := uint64(f.File.Size())
Blocks := (Size + 511) / 512
a.Gid = f.VFS().Opt.GID
a.Uid = f.VFS().Opt.UID
a.Mode = f.VFS().Opt.FilePerms
a.Size = Size
a.Atime = modTime
a.Mtime = modTime
a.Ctime = modTime
a.Blocks = Blocks
return nil
}
// Check interface satisfied
var _ fusefs.NodeSetattrer = (*File)(nil)
// Setattr handles attribute changes from FUSE. Currently supports ModTime and Size only
func (f *File) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *fuse.SetattrResponse) (err error) {
defer log.Trace(f, "a=%+v", req)("err=%v", &err)
if !f.VFS().Opt.NoModTime {
if req.Valid.Mtime() {
err = f.File.SetModTime(req.Mtime)
} else if req.Valid.MtimeNow() {
err = f.File.SetModTime(time.Now())
}
}
if req.Valid.Size() {
err = f.File.Truncate(int64(req.Size))
}
return translateError(err)
}
// Check interface satisfied
var _ fusefs.NodeOpener = (*File)(nil)
// Open the file for read or write
func (f *File) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.OpenResponse) (fh fusefs.Handle, err error) {
defer log.Trace(f, "flags=%v", req.Flags)("fh=%v, err=%v", &fh, &err)
// fuse flags are based off syscall flags as are os flags, so
// should be compatible
handle, err := f.File.Open(int(req.Flags))
if err != nil {
return nil, translateError(err)
}
// If size unknown then use direct io to read
if entry := handle.Node().DirEntry(); entry != nil && entry.Size() < 0 {
resp.Flags |= fuse.OpenDirectIO
}
return &FileHandle{handle}, nil
}
// Check interface satisfied
var _ fusefs.NodeFsyncer = (*File)(nil)
// Fsync the file
//
// Note that we don't do anything except return OK
func (f *File) Fsync(ctx context.Context, req *fuse.FsyncRequest) (err error) {
defer log.Trace(f, "")("err=%v", &err)
return nil
}
// Getxattr gets an extended attribute by the given name from the
// node.
//
// If there is no xattr by that name, returns fuse.ErrNoXattr.
func (f *File) Getxattr(ctx context.Context, req *fuse.GetxattrRequest, resp *fuse.GetxattrResponse) error {
return syscall.ENOSYS // we never implement this
}
var _ fusefs.NodeGetxattrer = (*File)(nil)
// Listxattr lists the extended attributes recorded for the node.
func (f *File) Listxattr(ctx context.Context, req *fuse.ListxattrRequest, resp *fuse.ListxattrResponse) error {
return syscall.ENOSYS // we never implement this
}
var _ fusefs.NodeListxattrer = (*File)(nil)
// Setxattr sets an extended attribute with the given name and
// value for the node.
func (f *File) Setxattr(ctx context.Context, req *fuse.SetxattrRequest) error {
return syscall.ENOSYS // we never implement this
}
var _ fusefs.NodeSetxattrer = (*File)(nil)
// Removexattr removes an extended attribute for the name.
//
// If there is no xattr by that name, returns fuse.ErrNoXattr.
func (f *File) Removexattr(ctx context.Context, req *fuse.RemovexattrRequest) error {
return syscall.ENOSYS // we never implement this
}
var _ fusefs.NodeRemovexattrer = (*File)(nil)