86 lines
1.6 KiB
Go
86 lines
1.6 KiB
Go
package fusefrontend
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import (
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"context"
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"syscall"
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"github.com/hanwen/go-fuse/v2/fs"
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"github.com/hanwen/go-fuse/v2/fuse"
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"github.com/rfjakob/gocryptfs/internal/syscallcompat"
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"github.com/rfjakob/gocryptfs/internal/tlog"
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)
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func (f *File) Setattr(ctx context.Context, in *fuse.SetAttrIn, out *fuse.AttrOut) (errno syscall.Errno) {
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errno = f.setAttr(ctx, in)
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if errno != 0 {
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return errno
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}
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return f.Getattr(ctx, out)
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}
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func (f *File) setAttr(ctx context.Context, in *fuse.SetAttrIn) (errno syscall.Errno) {
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f.fdLock.RLock()
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defer f.fdLock.RUnlock()
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if f.released {
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tlog.Warn.Printf("ino%d fh%d: Truncate on released file", f.qIno.Ino, f.intFd())
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return syscall.EBADF
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}
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f.fileTableEntry.ContentLock.Lock()
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defer f.fileTableEntry.ContentLock.Unlock()
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// fchmod(2)
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if mode, ok := in.GetMode(); ok {
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errno = fs.ToErrno(syscall.Fchmod(f.intFd(), mode))
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if errno != 0 {
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return errno
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}
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}
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// fchown(2)
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uid32, uOk := in.GetUID()
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gid32, gOk := in.GetGID()
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if uOk || gOk {
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uid := -1
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gid := -1
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if uOk {
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uid = int(uid32)
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}
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if gOk {
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gid = int(gid32)
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}
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errno = fs.ToErrno(syscall.Fchown(f.intFd(), uid, gid))
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if errno != 0 {
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return errno
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}
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}
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// utimens(2)
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mtime, mok := in.GetMTime()
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atime, aok := in.GetATime()
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if mok || aok {
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ap := &atime
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mp := &mtime
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if !aok {
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ap = nil
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}
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if !mok {
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mp = nil
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}
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errno = fs.ToErrno(syscallcompat.FutimesNano(f.intFd(), ap, mp))
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if errno != 0 {
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return errno
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}
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}
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// truncate(2)
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if sz, ok := in.GetSize(); ok {
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errno = syscall.Errno(f.truncate(sz))
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if errno != 0 {
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return errno
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}
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}
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return 0
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}
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