fusefrontend_reverse: Use openBackingDir in GetAttr
Also fixes 48bd59f388
- the directory FD should
also be closed in case of an error.
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ad0f110191
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3af51736f3
@ -146,22 +146,17 @@ func (rfs *ReverseFS) GetAttr(relPath string, context *fuse.Context) (*fuse.Attr
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}
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return &a, status
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}
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// Decrypt path to "plaintext relative path"
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pRelPath, err := rfs.decryptPath(relPath)
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dirfd, name, err := rfs.openBackingDir(relPath)
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if err != nil {
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return nil, fuse.ToStatus(err)
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}
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// Stat the backing file/dir using Fstatat
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var st unix.Stat_t
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dirFd, err := syscallcompat.OpenNofollow(rfs.args.Cipherdir, filepath.Dir(pRelPath), syscall.O_RDONLY|syscall.O_DIRECTORY, 0)
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err = syscallcompat.Fstatat(dirfd, name, &st, unix.AT_SYMLINK_NOFOLLOW)
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syscall.Close(dirfd)
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if err != nil {
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return nil, fuse.ToStatus(err)
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}
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err = syscallcompat.Fstatat(dirFd, filepath.Base(pRelPath), &st, unix.AT_SYMLINK_NOFOLLOW)
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if err != nil {
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return nil, fuse.ToStatus(err)
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}
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syscall.Close(dirFd)
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// Instead of risking an inode number collision, we return an error.
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if st.Ino > inoBaseMin {
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tlog.Warn.Printf("GetAttr %q: backing file inode number %d crosses reserved space, max=%d. Returning EOVERFLOW.",
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