libvirt/examples/apparmor/libvirt-qemu

# Last Modified: Wed Sep 3 21:52:03 2014

  #include <abstractions/base>
  #include <abstractions/consoles>
  #include <abstractions/nameservice>

  # required for reading disk images
  capability dac_override,
  capability dac_read_search,
  capability chown,

  # needed to drop privileges
  capability setgid,
  capability setuid,

  network inet stream,
  network inet6 stream,

  ptrace (readby, tracedby) peer=/usr/sbin/libvirtd,

  signal (receive) peer=/usr/sbin/libvirtd,

  /dev/net/tun rw,
  /dev/kvm rw,
  /dev/ptmx rw,
  /dev/kqemu rw,
  @{PROC}/*/status r,
  # When qemu is signaled to terminate, it will read cmdline of signaling
  # process for reporting purposes. Allowing read access to a process
  # cmdline may leak sensitive information embedded in the cmdline.
  @{PROC}/@{pid}/cmdline r,
  # Per man(5) proc, the kernel enforces that a thread may
  # only modify its comm value or those in its thread group.
  owner @{PROC}/@{pid}/task/@{tid}/comm rw,
  @{PROC}/sys/kernel/cap_last_cap r,

  # For hostdev access. The actual devices will be added dynamically
  /sys/bus/usb/devices/ r,
  /sys/devices/**/usb[0-9]*/** r,
  # libusb needs udev data about usb devices (~equal to content of lsusb -v)
  /run/udev/data/c16[6,7]* r,
  /run/udev/data/c18[0,8,9]* r,
  /run/udev/data/+usb* r,

  # WARNING: this gives the guest direct access to host hardware and specific
  # portions of shared memory. This is required for sound using ALSA with kvm,
  # but may constitute a security risk. If your environment does not require
  # the use of sound in your VMs, feel free to comment out or prepend 'deny' to
  # the rules for files in /dev.
  /{dev,run}/shm r,
  /{dev,run}/shmpulse-shm* r,
  /{dev,run}/shmpulse-shm* rwk,
  /dev/snd/* rw,
  capability ipc_lock,
  # spice
  owner /{dev,run}/shm/spice.* rw,
  # 'kill' is not required for sound and is a security risk. Do not enable
  # unless you absolutely need it.
  deny capability kill,

  # Uncomment the following if you need access to /dev/fb*
  #/dev/fb* rw,

  /etc/pulse/client.conf r,
  @{HOME}/.pulse-cookie rwk,
  owner /root/.pulse-cookie rwk,
  owner /root/.pulse/ rw,
  owner /root/.pulse/* rw,
  /usr/share/alsa/** r,
  owner /tmp/pulse-*/ rw,
  owner /tmp/pulse-*/* rw,
  /var/lib/dbus/machine-id r,

  # access to firmware's etc
  /usr/share/kvm/** r,
  /usr/share/qemu/** r,
  /usr/share/qemu-kvm/** r,
  /usr/share/bochs/** r,
  /usr/share/openbios/** r,
  /usr/share/openhackware/** r,
  /usr/share/proll/** r,
  /usr/share/vgabios/** r,
  /usr/share/seabios/** r,
  /usr/share/misc/sgabios.bin r,
  /usr/share/ovmf/** r,
  /usr/share/OVMF/** r,
  /usr/share/AAVMF/** r,
  /usr/share/qemu-efi/** r,
  /usr/share/slof/** r,

  # pki for libvirt-vnc and libvirt-spice (LP: #901272, #1690140)
  /etc/pki/CA/ r,
  /etc/pki/CA/* r,
  /etc/pki/libvirt{,-spice,-vnc}/ r,
  /etc/pki/libvirt{,-spice,-vnc}/** r,

  # the various binaries
  /usr/bin/kvm rmix,
  /usr/bin/qemu rmix,
  /usr/bin/qemu-kvm rmix,
  /usr/bin/qemu-system-aarch64 rmix,
  /usr/bin/qemu-system-alpha rmix,
  /usr/bin/qemu-system-arm rmix,
  /usr/bin/qemu-system-cris rmix,
  /usr/bin/qemu-system-i386 rmix,
  /usr/bin/qemu-system-lm32 rmix,
  /usr/bin/qemu-system-m68k rmix,
  /usr/bin/qemu-system-microblaze rmix,
  /usr/bin/qemu-system-microblazeel rmix,
  /usr/bin/qemu-system-mips rmix,
  /usr/bin/qemu-system-mips64 rmix,
  /usr/bin/qemu-system-mips64el rmix,
  /usr/bin/qemu-system-mipsel rmix,
  /usr/bin/qemu-system-moxie rmix,
  /usr/bin/qemu-system-or32 rmix,
  /usr/bin/qemu-system-ppc rmix,
  /usr/bin/qemu-system-ppc64 rmix,
  /usr/bin/qemu-system-ppcemb rmix,
  /usr/bin/qemu-system-s390x rmix,
  /usr/bin/qemu-system-sh4 rmix,
  /usr/bin/qemu-system-sh4eb rmix,
  /usr/bin/qemu-system-sparc rmix,
  /usr/bin/qemu-system-sparc64 rmix,
  /usr/bin/qemu-system-tricore rmix,
  /usr/bin/qemu-system-unicore32 rmix,
  /usr/bin/qemu-system-x86_64 rmix,
  /usr/bin/qemu-system-xtensa rmix,
  /usr/bin/qemu-system-xtensaeb rmix,
  /usr/bin/qemu-aarch64 rmix,
  /usr/bin/qemu-alpha rmix,
  /usr/bin/qemu-arm rmix,
  /usr/bin/qemu-armeb rmix,
  /usr/bin/qemu-cris rmix,
  /usr/bin/qemu-i386 rmix,
  /usr/bin/qemu-m68k rmix,
  /usr/bin/qemu-microblaze rmix,
  /usr/bin/qemu-microblazeel rmix,
  /usr/bin/qemu-mips rmix,
  /usr/bin/qemu-mips64 rmix,
  /usr/bin/qemu-mips64el rmix,
  /usr/bin/qemu-mipsel rmix,
  /usr/bin/qemu-mipsn32 rmix,
  /usr/bin/qemu-mipsn32el rmix,
  /usr/bin/qemu-or32 rmix,
  /usr/bin/qemu-ppc rmix,
  /usr/bin/qemu-ppc64 rmix,
  /usr/bin/qemu-ppc64abi32 rmix,
  /usr/bin/qemu-ppc64le rmix,
  /usr/bin/qemu-s390x rmix,
  /usr/bin/qemu-sh4 rmix,
  /usr/bin/qemu-sh4eb rmix,
  /usr/bin/qemu-sparc rmix,
  /usr/bin/qemu-sparc32plus rmix,
  /usr/bin/qemu-sparc64 rmix,
  /usr/bin/qemu-unicore32 rmix,
  /usr/bin/qemu-x86_64 rmix,
  # for Debian/Ubuntu qemu-block-extra / RPMs qemu-block-* (LP: #1554761)
  /usr/{lib,lib64}/qemu/*.so mr,
  /usr/lib/@{multiarch}/qemu/*.so mr,

  # swtpm
  /{usr/,}bin/swtpm rmix,
  /usr/{lib,lib64}/libswtpm_libtpms.so mr,
  /usr/lib/@{multiarch}/libswtpm_libtpms.so mr,

  # for save and resume
  /{usr/,}bin/dash rmix,
  /{usr/,}bin/dd rmix,
  /{usr/,}bin/cat rmix,

  # for restore
  /{usr/,}bin/bash rmix,

  # for usb access
  /dev/bus/usb/ r,
  /etc/udev/udev.conf r,
  /sys/bus/ r,
  /sys/class/ r,

  # for rbd
  /etc/ceph/ceph.conf r,

  # Various functions will need to enumerate /tmp (e.g. ceph), allow the base
  # dir and a few known functions like samba support.
  # We want to avoid to give blanket rw permission to everything under /tmp,
  # users are expected to add site specific addons for more uncommon cases.
  # Qemu processes usually all run as the same users, so the "owner"
  # restriction prevents access to other services files, but not across
  # different instances.
  # This is a tradeoff between usability and security - if paths would be more
  # predictable that would be preferred - at least for write rules we would
  # want more unique paths per rule.
  /{,var/}tmp/ r,
  owner /{,var/}tmp/**/ r,

  # for file-posix getting limits since 9103f1ce
  /sys/devices/**/block/*/queue/max_segments r,

  # for ppc device-tree access
  @{PROC}/device-tree/ r,
  @{PROC}/device-tree/** r,
  /sys/firmware/devicetree/** r,

  # allow connect with openGraphicsFD to work
  unix (send, receive) type=stream addr=none peer=(label=/usr/sbin/libvirtd),

  # for gathering information about available host resources
  /sys/devices/system/cpu/ r,
  /sys/devices/system/node/ r,
  /sys/devices/system/node/node[0-9]*/meminfo r,
  /sys/module/vhost/parameters/max_mem_regions r,

  # silence refusals to open lttng files (see LP: #1432644)
  deny /dev/shm/lttng-ust-wait-* r,
  deny /run/shm/lttng-ust-wait-* r,

  # for vfio hotplug on systems without static vfio (LP: #1775777)
  /dev/vfio/vfio rw,

  # required for sasl GSSAPI plugin
  /etc/gss/mech.d/ r,
  /etc/gss/mech.d/* r,