Hi guys, I recently learned about a set of ACL tests that were added by Tuxera to pjdtests. I pushed a branch to my github with some fixes to build and run on recent Linux: https://github.com/amir73il/pjdfstest.git #tuxera-acl-tests While the set of ACL tests pass on overlayfs over xfs/ext4 some fail on overlayfs over tmpfs. Below is a snippet from one of the failed tests. The test setup grants read-only access to a 'foreign' user and write-only access to a 'foreign' group (i.e. not the owner). The return value from the 4 open statements at the bottom of the test are correct when run on tmpfs/xfs/ext4 and they are correct when run on overlayfs over xfs/ext4. However, when running the same test on overlayfs over tmpfs (both lower and upper) all 4 open statements fail with EACCESS as if the ACL permission grant for the foreign user/group are skipped. I tried following the permission checks code and got lost. Can you shed some light on this for me? Thanks, Amir. # create a basic directory, clean its inherited ACLs, and check initial ACL # 1 expect 0 mkdir ${d0} 0777 expect 0 setfacl ${d0} b expect 0 create ${d0}/${n1} 0644 expect 0 chown ${d0}/${n1} 65533 65533 expect 'u::rw-,g::r--,o::r--' getfacl ${d0}/${n1} access expect EACCES getfacl ${d0}/${n1} default # # Grant read or write access to another user or group, check access # 6 expect 0 setfacl ${d0}/${n1} m 'u::-,g::-,o::-,m::rw,u:65531:r,g:65532:w' expect 0 -u 65531 -g 65531 open ${d0}/${n1} O_RDONLY expect EACCES -u 65531 -g 65531 open ${d0}/${n1} O_RDWR expect 0 -u 65532 -g 65532 open ${d0}/${n1} O_WRONLY expect EACCES -u 65532 -g 65532 open ${d0}/${n1} O_RDWR -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
