Hello Joshua, We did not want bins like setfacl,setcap,chsmack etc.. to be kept on target .
- wanted to understand "how does this postscript gets copied to target and at which path"? - I will have multiple recipe that will have this postscript to set respective packages bin's "acl" permissions and "smack" rules. Is it possible that after executing all the post script from all the recipes , I shall be able to uninstall the acl and smack rpms ? Same applies for "setcap" rpms. - Do you have near plan to fix these :) ? Thanks and Regards Shrawan -----Original Message----- From: Joshua G Lock [mailto:joshua.g.l...@linux.intel.com] Sent: Wednesday, August 17, 2016 1:22 AM To: Kumar, Shrawan; yocto@yoctoproject.org Subject: Re: [yocto] Access Control List (ACL) permissions attributes not getting preserved in rootfs On Tue, 2016-08-16 at 11:55 +0000, Kumar, Shrawan wrote: > Thanks Joshua, > > "postinst" works!! I could see the attributes set under > "poky/build_qemux86/tmp/work/qemux86-poky-linux/core-image- > minimal/1.0-r0/rootfs/". > > However, I still could not see the attributes after booting qemu. It > seems during rootfs.ext4 (mkfs.ext4 command )creation when > "create_image_ext4.sh" is called , again this is getting lost. > > Any idea on this ? I'm not sure why the attribute isn't preserved in the image, it could be a another missing piece for me to track in the quest to better support xattr. There is a way to work around it, though — you can force the postinst to be run on the target at first boot, as documented in that same manual section. For example I have a test recipe with: 8<----snip-------- pkg_postinst_${PN}() { chown foo:foo $D${datadir}/xattrtest/xattrtest # Force setfacl to run on the target, not at image creation if [ x"$D" = "x" ]; then setfacl -m u:bar:r-- $D${datadir}/xattrtest/xattrtest else exit 1 fi } USERADD_PACKAGES = "${PN}" USERADD_PARAM_${PN} = "-m foo;-m bar" RDEPENDS_${PN} += "acl" 8<----snip-------- which results in: $ getfacl /usr/share/xattrtest/xattrtest getfacl: Removing leading '/' from absolute path names # file /usr/share/xattrtest/xattrtest # owner: foo # group: foo user::rw- user:bar:r-- group::r-- mask::r-- other::r-- The downside here is that your image has to include postinst support and the acl package (per the RDEPENDS_${PN} line in the snippet above). Regards, Joshua > > Regards > Shrawan > > > > > > -----Original Message----- > From: Joshua G Lock [mailto:joshua.g.l...@linux.intel.com] > Sent: Friday, August 12, 2016 7:22 PM > To: Kumar, Shrawan; yocto@yoctoproject.org > Subject: Re: [yocto] Access Control List (ACL) permissions attributes > not getting preserved in rootfs > > On Fri, 2016-08-12 at 12:33 +0000, Kumar, Shrawan wrote: > > > > Hello All, > > > > I am using poky “ jethro” , and though one of my recipe, I have > > created user1 & user2 and then trying to set ACL rules on > > “helloworld” bin as below : > > > > > > do_install() { > > install -d ${D}${bindir} > > install -m 0700 helloworld ${D}${bindir} > > install -d ${D}/lib/systemd/system > > install -m 0700 hello.service > > ${D}/lib/systemd/system/ > > chown user1:group1 ${D}${bindir}/helloworld > > setfacl -m u:user2:r-- ${D}${bindir}/helloworld } > > > > > > è When I see on the devshell ( bitbake HelloWorld –c devshell) : > > poky/build_qemux86/tmp/work/qemux86-poky-linux/core-image- > > minimal/1.0-r0/rootfs/usr/bin# getfacl helloworld , I could see > > that ACL permissions are set correctly as below : > > - # file: helloworld > > - # owner: user1 > > - # group: group1 > > - user::rwx > > - user:user2:r-- > > - group::--- > > - mask::r-- > > - other::--- > > > > However, It does not seems to be getting preserved in rootfs. : > > /poky/build_qemux86/tmp/work/qemux86-poky-linux/core-image- > > minimal/1.0-r0/rootfs/usr/bin# getfacl helloworld # file: > > helloworld # > > owner: user1 # group: group1 user::rwx > > group::--- > > other::--- > > > > quick help here would be highly appreciated > > This is due to the fact that we don't currently have a mechanism to > preserve xattr through to image construction[1]. > > The largest barrier for doig so is that the package managers > (certainly dpkg and rpm) don't have any support for xattrs in packages > (an image is populated via the package manager). > > To the best of my knowledge the only option for adding some xattr/ACL > is to use a postinst[2] to set the attributes after the package has > been installed. > > Regards, > > Joshua > > 1. https://bugzilla.yoctoproject.org/show_bug.cgi?id=9858 > 2. http://www.yoctoproject.org/docs/2.1/dev-manual/dev-manual.html#ne > w- > recipe-post-installation-scripts > -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
