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fusefrontend: when chown'ing a directory, also chown its diriv

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When filename encryption is active, every directory contains
a "gocryptfs.diriv" file. This file should also change the owner.

Fixes https://github.com/rfjakob/gocryptfs/issues/86
This commit is contained in:
Jakob Unterwurzacher 2017-03-02 19:11:24 +01:00
parent b765cc526d
commit b2f3dbb8bd
1 changed files with 13 additions and 1 deletions
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14
internal/fusefrontend/fs.go
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@ -187,7 +187,19 @@ func (fs *FS) Chown(path string, uid uint32, gid uint32, context *fuse.Context)
if err != nil {
return fuse.ToStatus(err)
}
return fuse.ToStatus(os.Lchown(cPath, int(uid), int(gid)))
code = fuse.ToStatus(os.Lchown(cPath, int(uid), int(gid)))
if !code.Ok() {
return code
}
if !fs.args.PlaintextNames {
// When filename encryption is active, every directory contains
// a "gocryptfs.diriv" file. This file should also change the owner.
// Instead of checking if "cPath" is a directory, we just blindly
// execute the Lchown on "cPath/gocryptfs.diriv" and ignore errors.
dirIVPath := filepath.Join(cPath, nametransform.DirIVFilename)
os.Lchown(dirIVPath, int(uid), int(gid))
}
return fuse.OK
}
// Mknod implements pathfs.Filesystem.