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8f882cf36e
On live migration with --p2p like:
$ virsh migrate --live --p2p kvmguest-bionic-normal \
qemu+ssh://10.6.221.80/system
We hit an apparmor deny like:
apparmor="DENIED" operation="file_inherit"
profile="/usr/sbin/libvirtd" pid=23477 comm="ssh" family="unix"
sock_type="stream" protocol=0 requested_mask="send receive"
denied_mask="send" addr=none peer_addr=none peer="unconfined"
The rule is not perfect, but can't be restricted further at the moment
(new upstream kernel features needed). For now the lack of a profile on the
peer as well as comm not being a conditional on rules do not allow to filter
further.
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
117 lines
3.6 KiB
Plaintext
117 lines
3.6 KiB
Plaintext
# Last Modified: Mon Apr 5 15:03:58 2010
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#include <tunables/global>
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@{LIBVIRT}="libvirt"
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/usr/sbin/libvirtd flags=(attach_disconnected) {
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#include <abstractions/base>
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#include <abstractions/dbus>
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capability kill,
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capability net_admin,
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capability net_raw,
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capability setgid,
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capability sys_admin,
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capability sys_module,
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capability sys_ptrace,
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capability sys_pacct,
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capability sys_nice,
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capability sys_chroot,
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capability setuid,
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capability dac_override,
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capability dac_read_search,
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capability fowner,
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capability chown,
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capability setpcap,
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capability mknod,
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capability fsetid,
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capability audit_write,
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capability ipc_lock,
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# Needed for vfio
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capability sys_resource,
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mount options=(rw,rslave) -> /,
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mount options=(rw, nosuid) -> /{var/,}run/libvirt/qemu/*.dev/,
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mount options=(rw, move) /dev/ -> /{var/,}run/libvirt/qemu/*.dev/,
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mount options=(rw, move) /dev/hugepages/ -> /{var/,}run/libvirt/qemu/*.hugepages/,
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mount options=(rw, move) /dev/mqueue/ -> /{var/,}run/libvirt/qemu/*.mqueue/,
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mount options=(rw, move) /dev/pts/ -> /{var/,}run/libvirt/qemu/*.pts/,
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mount options=(rw, move) /dev/shm/ -> /{var/,}run/libvirt/qemu/*.shm/,
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mount options=(rw, move) /{var/,}run/libvirt/qemu/*.dev/ -> /dev/,
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mount options=(rw, move) /{var/,}run/libvirt/qemu/*.hugepages/ -> /dev/hugepages/,
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mount options=(rw, move) /{var/,}run/libvirt/qemu/*.mqueue/ -> /dev/mqueue/,
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mount options=(rw, move) /{var/,}run/libvirt/qemu/*.pts/ -> /dev/pts/,
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mount options=(rw, move) /{var/,}run/libvirt/qemu/*.shm/ -> /dev/shm/,
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network inet stream,
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network inet dgram,
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network inet6 stream,
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network inet6 dgram,
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network netlink raw,
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network packet dgram,
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network packet raw,
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# for --p2p migrations
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unix (send, receive) type=stream addr=none peer=(label=unconfined addr=none),
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ptrace (trace) peer=unconfined,
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ptrace (trace) peer=/usr/sbin/libvirtd,
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ptrace (trace) peer=/usr/sbin/dnsmasq,
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ptrace (trace) peer=libvirt-*,
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signal (send) peer=/usr/sbin/dnsmasq,
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signal (read, send) peer=libvirt-*,
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# Very lenient profile for libvirtd since we want to first focus on confining
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# the guests. Guests will have a very restricted profile.
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/ r,
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/** rwmkl,
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/bin/* PUx,
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/sbin/* PUx,
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/usr/bin/* PUx,
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/usr/sbin/virtlogd pix,
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/usr/sbin/* PUx,
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/{usr/,}lib/udev/scsi_id PUx,
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/usr/{lib,lib64}/xen-common/bin/xen-toolstack PUx,
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/usr/{lib,lib64}/xen/bin/* Ux,
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/usr/lib/xen-*/bin/libxl-save-helper PUx,
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# force the use of virt-aa-helper
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audit deny /{usr/,}sbin/apparmor_parser rwxl,
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audit deny /etc/apparmor.d/libvirt/** wxl,
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audit deny /sys/kernel/security/apparmor/features rwxl,
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audit deny /sys/kernel/security/apparmor/matching rwxl,
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audit deny /sys/kernel/security/apparmor/.* rwxl,
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/sys/kernel/security/apparmor/profiles r,
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/usr/{lib,lib64}/libvirt/* PUxr,
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/usr/{lib,lib64}/libvirt/libvirt_parthelper ix,
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/usr/{lib,lib64}/libvirt/libvirt_iohelper ix,
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/etc/libvirt/hooks/** rmix,
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/etc/xen/scripts/** rmix,
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# allow changing to our UUID-based named profiles
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change_profile -> @{LIBVIRT}-[0-9a-f]*-[0-9a-f]*-[0-9a-f]*-[0-9a-f]*-[0-9a-f]*,
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/usr/{lib,lib64,lib/qemu,libexec}/qemu-bridge-helper Cx -> qemu_bridge_helper,
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# child profile for bridge helper process
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profile qemu_bridge_helper {
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#include <abstractions/base>
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capability setuid,
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capability setgid,
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capability setpcap,
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capability net_admin,
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network inet stream,
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/dev/net/tun rw,
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/etc/qemu/** r,
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owner @{PROC}/*/status r,
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/usr/{lib,lib64,lib/qemu,libexec}/qemu-bridge-helper rmix,
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}
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}
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