298 lines
9.6 KiB
Text
298 lines
9.6 KiB
Text
# apparmor.d - Full set of apparmor profiles
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# Copyright (C) Libvirt Team
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# Copyright (C) 2021-2024 Alexandre Pujol <alexandre@pujol.io>
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# SPDX-License-Identifier: GPL-2.0-only
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# Based on Libvirt Apparmor profile, it is largelly restricted from it.
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# As upstream profile mostly focus on confining the guests. Not libvirt itself.
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# It uses a lot of profiles provided by apparmor.d
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# Source: https://gitlab.com/libvirt/libvirt/-/blob/master/src/security/apparmor/usr.sbin.libvirtd.in
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# Warning: Such a profile is limited as it gives access to a lot of resources.
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abi <abi/4.0>,
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include <tunables/global>
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@{exec_path} = @{sbin}/libvirtd
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profile libvirtd @{exec_path} flags=(attach_disconnected) {
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include <abstractions/base>
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include <abstractions/bus-session>
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include <abstractions/bus-system>
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include <abstractions/bus/org.gtk.vfs.MountTracker>
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include <abstractions/consoles>
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include <abstractions/devices-usb>
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include <abstractions/disks-write>
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include <abstractions/nameservice-strict>
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capability audit_write,
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capability bpf,
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capability chown,
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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 fsetid,
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capability ipc_lock,
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capability kill,
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capability mknod,
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capability net_admin,
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capability net_raw,
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capability perfmon,
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capability setgid,
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capability setpcap,
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capability setuid,
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capability sys_admin,
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capability sys_chroot,
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capability sys_module,
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capability sys_nice,
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capability sys_pacct,
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capability sys_ptrace,
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capability sys_rawio,
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capability sys_resource, # Needed for vfio
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network inet dgram,
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network inet stream,
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network inet6 dgram,
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network inet6 stream,
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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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mount options=(rw, rslave) -> /,
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mount options=(rw, nosuid) -> @{run}/libvirt/qemu/*.dev/,
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umount @{run}/libvirt/qemu/*.dev/,
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# Libvirt provides any mounts under /dev to qemu namespaces
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mount options=(rw, move) /dev/ -> @{run}/libvirt/qemu/*.dev/,
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mount options=(rw, move) /dev/** -> @{run}/libvirt/qemu/*{,/},
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mount options=(rw, move) @{run}/libvirt/qemu/*.dev/ -> /dev/,
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mount options=(rw, move) @{run}/libvirt/qemu/*{,/} -> /dev/**,
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ptrace (read,trace) peer=@{profile_name},
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ptrace (read,trace) peer=dnsmasq,
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ptrace (read,trace) peer=gnome-boxes,
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ptrace (read,trace) peer=libvirt-@{uuid},
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ptrace (read,trace) peer=libvirt-dbus,
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ptrace (read,trace) peer=unconfined,
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ptrace (read,trace) peer=virt-manager,
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signal (read,send) peer=libvirt-@{uuid},
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signal (read,send) peer=unconfined,
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signal (send) peer=dnsmasq,
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signal (send) set=(kill, term) peer=virtiofsd,
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signal (send) set=(term) peer=libvirtd//qemu_bridge_helper,
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signal (send) set=(term) peer=swtpm,
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unix (send, receive) type=stream addr=none peer=(label=libvirt-@{uuid}),
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unix (send, receive) type=stream addr=none peer=(label=libvirtd//qemu_bridge_helper),
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unix (send, receive) type=stream addr=none peer=(label=unconfined addr=none),
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unix (send, receive) type=stream addr=none peer=(label=unconfined),
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unix (send, receive) type=stream addr=none peer=(label=virt-manager),
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# Allow changing to our UUID-based named profiles
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change_profile -> libvirt-@{uuid},
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dbus receive bus=session
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interface=org.freedesktop.DBus.Introspectable
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member=Introspect
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peer=(name=@{busname}, label=gnome-shell),
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@{exec_path} mr,
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@{lib}/libvirt/libvirt_iohelper rix,
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@{lib}/libvirt/libvirt_parthelper rix,
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@{lib}/{,qemu/}qemu-bridge-helper rPx,
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@{lib}/{,qemu/}vhost-user-gpu rPUx,
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@{lib}/{,qemu/}virtiofsd rux, # TODO: WIP
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@{lib}/udev/scsi_id rPUx,
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@{lib}/xen-*/bin/libxl-save-helper rPUx,
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@{lib}/xen-*/bin/pygrub rPUx,
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@{lib}/xen-common/bin/xen-toolstack rPUx,
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@{lib}/xen/bin/* rPUx,
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@{sbin}/dmidecode rPx,
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@{sbin}/dnsmasq rPx,
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@{bin}/kmod rCx -> kmod,
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@{sbin}/lvm rPUx,
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@{bin}/mdevctl rPx,
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@{bin}/swtpm rPx,
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@{bin}/swtpm_ioctl rPx,
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@{bin}/swtpm_setup rPx,
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@{bin}/udevadm rPx,
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@{bin}/virtiofsd rux, # TODO: WIP
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@{sbin}/virtlogd rPx,
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@{sh_path} rix,
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@{bin}/ip rix,
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@{sbin}/nft rix,
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@{bin}/qemu-img rUx, # TODO: Integration with virt-aa-helper
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@{bin}/qemu-system* rUx, # TODO: Integration with virt-aa-helper
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@{sbin}/tc rix,
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@{bin}/xmllint rix,
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@{sbin}/xtables-nft-multi rix,
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@{lib}/libvirt/virt-aa-helper rPx,
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/etc/libvirt/hooks/** rPUx,
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/etc/xen/scripts/** rmix,
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/var/lib/libvirt/virtd* rix,
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/usr/share/edk2*/{,**} rk,
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/usr/share/hwdata/* r,
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/usr/share/iproute2/{,**} r,
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/usr/share/libvirt/{,**} r,
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/usr/share/mime/mime.cache r,
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/usr/share/misc/pci.ids r,
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/usr/share/qemu/{,**} r,
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@{etc_rw}/apparmor.d/libvirt/libvirt-@{uuid} r,
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@{etc_rw}/libvirt/{,**} rw,
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/etc/mdevctl.d/{,**} r,
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/etc/sasl2/qemu.conf r,
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/etc/xml/catalog r,
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/var/cache/libvirt/{,**} rw,
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/var/lib/libvirt/ rw,
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/var/lib/libvirt/** rwk,
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/var/log/swtpm/libvirt/{,**} rw,
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# User VM images and share
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@{user_share_dirs}/ r,
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@{user_share_dirs}/libvirt/{,**} rwk,
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@{user_vm_dirs}/{,**} rwk,
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@{user_publicshare_dirs}/{,**} rwk,
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owner @{user_config_dirs}/libvirt/{,**} rwk,
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owner @{run}/user/@{uid}/libvirt/ rw,
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owner @{run}/user/@{uid}/libvirt/** rwk,
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@{att}/@{run}/systemd/inhibit/@{int}.ref rw,
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@{run}/libvirt/ rw,
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@{run}/libvirt/** rwk,
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@{run}/libvirtd.pid wk,
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@{run}/lock/LCK.._pts_@{int} rw,
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@{run}/systemd/notify w,
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@{run}/utmp rk,
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@{run}/udev/data/+*:* r, # Identifies all subsystems
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@{run}/udev/data/c@{int}:@{int} r, # Identifies all character devices
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@{run}/udev/data/n@{int} r, # For network interfaces
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@{sys}/bus/[a-z]*/devices/ r,
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@{sys}/bus/pci/drivers_probe w,
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@{sys}/bus/pci/drivers/*/unbind w,
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@{sys}/class/[a-z]*/ r,
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@{sys}/devices/**/uevent r,
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@{sys}/devices/@{pci}/{class,revision,subsystem_vendor,subsystem_device} r,
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@{sys}/devices/@{pci}/{config,numa_node,device,vendor} r,
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@{sys}/devices/@{pci}/driver_override w,
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@{sys}/devices/@{pci}/mdev_supported_types/{,**} r,
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@{sys}/devices/@{pci}/mdev_supported_types/*/create w,
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@{sys}/devices/@{pci}/net/*/{,**} r,
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@{sys}/devices/@{pci}/remove w,
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@{sys}/devices/@{pci}/resource r,
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@{sys}/devices/@{pci}/sriov_totalvfs r,
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@{sys}/devices/system/cpu/cpu@{int}/cache/{,**} r,
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@{sys}/devices/system/cpu/cpu@{int}/topology/{,**} r,
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@{sys}/devices/system/cpu/isolated r,
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@{sys}/devices/system/cpu/present r,
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@{sys}/devices/system/node/ r,
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@{sys}/devices/system/node/node@{int}/ r,
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@{sys}/devices/system/node/node@{int}/{cpumap,distance,meminfo} r,
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@{sys}/devices/system/node/node@{int}/hugepages/{,**} r,
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@{sys}/devices/virtual/dmi/id/* r,
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@{sys}/devices/virtual/net/{,**} rw,
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@{sys}/kernel/debug/kvm/{,**} r,
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@{sys}/kernel/iommu_groups/ r,
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@{sys}/kernel/iommu_groups/@{int}/devices/ r,
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@{sys}/kernel/mm/hugepages/{,**} r,
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@{sys}/kernel/security/apparmor/profiles r,
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@{sys}/module/kvm_*/parameters/* r,
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@{sys}/module/vhost/parameters/max_mem_regions r,
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@{sys}/fs/cgroup/ r,
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@{sys}/fs/cgroup/cgroup.controllers r,
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@{sys}/fs/cgroup/machine.slice/* r,
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@{sys}/fs/cgroup/machine.slice/machine-qemu*.scope/{,**} rw,
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@{sys}/fs/cgroup/net_cls/machine.slice/ rw,
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@{sys}/fs/cgroup/net_cls/machine.slice/machine-qemu*.scope/{,**} rw,
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@{PROC}/@{pid}/cmdline r,
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@{PROC}/@{pid}/net/route r,
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@{PROC}/@{pids}/cgroup r,
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@{PROC}/@{pids}/net/dev r,
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@{PROC}/@{pids}/net/ip_tables_names r,
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@{PROC}/@{pids}/net/psched r,
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@{PROC}/@{pids}/stat r,
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@{PROC}/@{pids}/task/@{tid}/sched r,
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@{PROC}/@{pids}/task/@{tid}/schedstat r,
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@{PROC}/@{pids}/task/@{tid}/stat r,
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@{PROC}/devices r,
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@{PROC}/mtrr w,
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@{PROC}/sys/net/ipv{4,6}/** rw,
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@{PROC}/uptime r,
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owner @{PROC}/@{pid}/fd/ r,
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owner @{PROC}/@{pid}/mounts r,
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owner @{PROC}/@{pid}/task/@{tid}/comm rw,
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/dev/cpu/@{int}/msr r,
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/dev/dri/ r,
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/dev/hugepages/{,**} w,
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/dev/kvm rw,
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/dev/mapper/ r,
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/dev/mapper/control rw,
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/dev/net/tun rw,
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/dev/ptmx rw,
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/dev/shm/libvirt/{,**} rw,
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/dev/vfio/@{int} rwk,
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/dev/vhost-net rw,
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# Force the use of virt-aa-helper
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audit deny @{sbin}/apparmor_parser rwxl,
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audit deny @{etc_rw}/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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profile kmod {
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include <abstractions/base>
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include <abstractions/app/kmod>
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include if exists <local/libvirtd_kmod>
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}
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profile qemu_bridge_helper {
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include <abstractions/base>
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capability net_admin,
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capability setgid,
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capability setpcap,
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capability setuid,
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network inet stream,
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# For communication/control from libvirtd
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unix (send, receive) type=stream addr=none peer=(label=libvirtd),
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signal (receive) set=(term) peer=libvirtd,
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/{usr/,}{lib,lib64,lib/qemu,libexec}/qemu-bridge-helper rmix,
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/etc/qemu/{,**} r,
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owner @{PROC}/@{pids}/status r,
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/dev/net/tun rw,
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include if exists <local/libvirtd_qemu_bridge_helper>
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}
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include if exists <usr/libvirtd>
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include if exists <local/libvirtd>
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}
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# vim:syntax=apparmor
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