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authorScott Murray <scott.murray@konsulko.com>2022-07-25 14:23:13 -0400
committerJan-Simon Moeller <jsmoeller@linuxfoundation.org>2022-07-27 12:31:58 +0000
commit2ea9cbefb8e0923f2f58e7e8022f3e134977a87a (patch)
treed9440b8d8ccfaa496086842eef5ca7d588b58a17 /meta-agl-bsp/wic
parent6c9fa75459cf86576c47411fc239e0d7896d483c (diff)
Add SELinux feature
Add agl-selinux feature to enable SELinux support. Notes: - SELinux is in permissive mode by default for now, and using the targeted policy by default. - The linux-yocto specific bbappend in meta-selinux is masked out in favor of adding a more universal kernel configuration fragment with AGL's own scheme. - SELinux specific recipes and bbappends are added via a meta-selinux dynamic-layers addition in meta-agl-core to keep using meta-selinux optional. This will avoid issues with the Yocto autobuilder testing of meta-agl-core. - To avoid the effectively hard-coded autorelabel on first boot, a bbappend is added to the selinux-autorelabel recipe to remove the flag creation. In the off chance that a build happens on a filesystem without xattr support, the logic in the selinux-image bbclass will still touch the /.autorelabel flag and trigger relabeling. - A systemd unit and script are added with a new systemd-selinux-relabel recipe to handle relabeling of some systemd generated files that do not get handled during root filesystem construction. Some of these can be addressed by some upstream tweaks, but /etc/machine-id will always need special handling unless there is a shift to using read-only or stateless root by default. With this workaround we still avoid doing a full relabel and reboot on first boot, which helps simplify CI. Bug-AGL: SPEC-4332 Signed-off-by: Scott Murray <scott.murray@konsulko.com> Change-Id: Ibf469e11eb3a67709074cc6794b3d12cd5071a90 Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/27790 Tested-by: Jenkins Job builder account ci-image-build: Jenkins Job builder account ci-image-boot-test: Jenkins Job builder account Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
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