On 06/22/2010 01:34 PM, Chad Sellers wrote: > On 6/22/10 1:06 PM, "Daniel J Walsh" <dwalsh@xxxxxxxxxx> wrote: > >> When building packages within mock/livecd. >> >> We really want the processes running within the chroot to not do SELinux >> stuff. >> >> We want libselinux to tell them that SELinux is disabled. >> >> For example if we install selinux-policy package within a mock chroot or >> livecd we do not want it to try to load_policy. Other rpms try chcon or >> restorecon in post installs. These are get turned off if the tools >> think SELinux is disabled. We are not doing this for security reasons. >> >> We have been hacking this out, but replaceing $CHROOT/proc/filesystem >> with a version that does not include filesystem, but we have found this >> to require large privs for mock. (mount -o bind /tmp/filesystem >> $CHROOT/proc/filesystem; requires mock_t to read /dev/loop which is >> labeled fixed_disk_device_t) >> >> We have considered playing tricks with libselinux.so but those seem a >> little dangerous. >> >> Eric has come up with an idea of adding a field to >> $CHROOT/etc/selinux/config to tell is_selinux_enabled() to return false. >> >> SPECIAL_ENABLED=force_off >> >> Then mock could just set this flag in the config file and all apps would >> think SELinux is disabled. >> >> Does this seem reasonable? >> > Seems a bit dangerous, as there are some processes you don't want being > wrong about whether SELinux is enabled or not (e.g. login). That said, for > controlled uses like within a build chroot, it seems like it'd be ok. > > So, I'd be fine with this, though please name the option something a little > more obvious. Perhaps FAKEDISABLED, with values of 0 or 1 (like SETLOCALDEFS > or REQUIRESEUSERS). > > Chad Eric came up with the dumb name. This would only be for the chroot enviornments and apps are free to ignore is_selinux_enabeled() output. > > > -- > This message was distributed to subscribers of the selinux mailing list. > If you no longer wish to subscribe, send mail to majordomo@xxxxxxxxxxxxx with > the words "unsubscribe selinux" without quotes as the message. > > -- This message was distributed to subscribers of the selinux mailing list. If you no longer wish to subscribe, send mail to majordomo@xxxxxxxxxxxxx with the words "unsubscribe selinux" without quotes as the message.
