Date: Sat, 28 Nov 2020 05:05:27 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 251363] use unionfs as a disk-cache for NFS [feature] Message-ID: <bug-251363-227-4YuAKFYTMm@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-251363-227@https.bugs.freebsd.org/bugzilla/> References: <bug-251363-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D251363 --- Comment #13 from Gunther Schadow <raj@gusw.net> --- Further confirmation of the problem, which is now a bug of unionfs not following its own specification for copymode =3D transparent. The files do not get copied with the original owner credentials. Proof: # chmod g+w test-upper # mount -t unionfs test-upper test-lower # rm test-upper/data $ cat test-lower/data I'm root $ echo "But I'm not root, and I mean it!" > test-lower/data $ ls -l test-upper/ total 4 -rw-rw-r-- 1 user wheel 33 Nov 28 04:20 data so now the file is owned by user $ rm test-upper/data $ ls -l test-lower/ total 4 -rw-rw-r-- 1 root wheel 17 Nov 28 03:39 data so clearly the user is not the right one. Why? in unionfs_subr.c: ---------------------------------------------------------- void unionfs_create_uppervattr_core(struct unionfs_mount *ump, struct vattr *lva, struct vattr *uva, struct thread *td) { VATTR_NULL(uva); uva->va_type =3D lva->va_type; uva->va_atime =3D lva->va_atime; uva->va_mtime =3D lva->va_mtime; uva->va_ctime =3D lva->va_ctime; switch (ump->um_copymode) { case UNIONFS_TRANSPARENT: uva->va_mode =3D lva->va_mode; uva->va_uid =3D lva->va_uid; uva->va_gid =3D lva->va_gid; break; ---------------------------------------------------------- it should have been done! What if this is an issue with my code changes? No= , I verified it, it is happening on the original unionfs.ko just the same. I will make another ticket from that, because it's not my fault. But it's a major road block to getting this to work. --=20 You are receiving this mail because: You are the assignee for the bug.=
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