#include <tunables/global>

profile lxc-container-default flags=(attach_disconnected) {
  network,
  capability,
  file,
  umount,

  # ignore DENIED message on / remount
  # FIXME: doesn't match yet
  deny mount options=(ro, remount) -> /,

  # allow tmpfs mounts everywhere
  mount fstype=tmpfs,

  # allow mqueue mounts everywhere
  mount fstype=mqueue,

  # the container may never be allowed to mount devpts.  If it does, it
  # will remount the host's devpts.  We could allow it to do it with
  # the newinstance option (but, right now, we don't).
  deny mount fstype=devpts,

  # allow bind mount of /lib/init/fstab for lxcguest
  mount options=(rw, bind) /lib/init/fstab.lxc/ -> /lib/init/fstab/,

  # deny writes in /proc/sys/fs but allow fusectl to be mounted
  mount fstype=binfmt_misc -> /proc/sys/fs/binfmt_misc/,
  deny @{PROC}/sys/fs/** wklx,

  # block some other dangerous paths
  deny @{PROC}/sysrq-trigger rwklx,
  deny @{PROC}/mem rwklx,
  deny @{PROC}/kmem rwklx,
  deny @{PROC}/sys/kernel/** wklx,

  # deny writes in /sys except for /sys/fs/cgroup, also allow
  # fusectl, securityfs and debugfs to be mounted there (read-only)
  mount fstype=fusectl -> /sys/fs/fuse/connections/,
  mount fstype=securityfs -> /sys/kernel/security/,
  mount fstype=debugfs -> /sys/kernel/debug/,
  mount fstype=proc -> /proc/,
  mount fstype=sysfs -> /sys/,
  deny /sys/[^f]*/** wklx,
  deny /sys/f[^s]*/** wklx,
  deny /sys/fs/[^c]*/** wklx,
  deny /sys/fs/c[^g]*/** wklx,
  deny /sys/fs/cg[^r]*/** wklx,
}