Commit Graph

41 Commits

Author SHA1 Message Date
intrigeri
e7f5d627f9 apparmor, libvirt-qemu: Allow QEMU to gather information about available host resources. 2017-08-11 16:57:59 -03:00
Serge Hallyn
ba326c8699 apparmor, libvirt-qemu: Allow access to certificates used by libvirt-vnc
When setting up VncTLS according to the official Libvirt documentation,
only one certificate for libvirt/libvirt-vnc is used. The document
indicates to use the following directories :

 /etc/pki/CA
 /etc/pki/libvirt
 /etc/pki/libvirt/private

in order to manage the certificates used by libvirt-vnc.

Bug-Ubuntu: https://bugs.launchpad.net/bugs/901272

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
2017-06-16 10:38:52 +02:00
Serge Hallyn
78769b8bd9 apparmor, libvirt-qemu: Allow access to ceph config
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
2017-06-16 10:38:52 +02:00
Stefan Bader
5b4d46a95e apparmor, libvirtd: Allow libxl-save-helper to run on Debian/Ubuntu
On Debian/Ubuntu the libxl-save-helper (used when saving/restoring
a domain through libxl) is located under /usr/lib/xen-<version>/bin.

Bug-Ubuntu: https://bugs.launchpad.net/bugs/1334195

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
2017-06-16 10:38:52 +02:00
Serge Hallyn
233e08c057 apparmor, libvirt-qemu: Add ppc64el related changes
Updates profile to allow running on ppc64el.

Bug-Ubuntu: https://bugs.launchpad.net/bugs/1374554

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
2017-06-16 10:38:52 +02:00
William Grant
f3b0f324eb apparmor, virt-aa-helper: Allow aarch64 UEFI.
Allow access to aarch64 UEFI images.

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Guido Günther <agx@sigxcpu.org>
2017-06-16 10:38:52 +02:00
Simon McVittie
8d4aad6412 virt-aa-helper, apparmor: allow /usr/share/OVMF/ too
The split firmware and variables files introduced by
https://bugs.debian.org/764918 are in a different directory for
some reason. Let the virtual machine read both.

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
2017-06-16 10:38:52 +02:00
Felix Geyer
dd875fb326 apparmor, virt-aa-helper: Explicit denies for host devices
Add explicit denies for disk devices to avoid cluttering dmesg with
(acceptable) denials.

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Guido Günther <agx@sigxcpu.org>
2017-05-19 09:48:23 +02:00
Felix Geyer
95740052ea apparmor, virt-aa-helper: Allow access to libnl-3 config files
Allow access to libnl-3 config files

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Guido Günther <agx@sigxcpu.org>
2017-05-19 09:48:23 +02:00
Guido Günther
123cc3e11c apparmor: allow /usr/lib/qemu/qemu-bridge-helper
This is where e.g. Debian puts it.
2017-03-17 09:59:42 +01:00
Guido Günther
1a9148fbdf apparmor: pass attach_disconnected
to cure

 + virsh lxc-enter-namespace --noseclabel sl /bin/ls /bin/ls
 libvirt:  error : Expected at least one file descriptor
 error: internal error: Child process (2714) unexpected exit status 125

caused by

 apparmor="DENIED" operation="open" info="Failed name lookup - disconnected path" error=-13 profile="/usr/sbin/libvirtd" name="" pid=1422 comm="libvirtd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
2016-12-21 06:26:31 +01:00
intrigeri
a73e7037e5 AppArmor: allow QEMU to set_process_name.
https://bugzilla.redhat.com/show_bug.cgi?id=1369281

Acked-by: Christian Ehrhardt <christian.ehrhardt@canonical.co>
2016-12-12 14:08:45 +00:00
intrigeri
de79efdeb8 AppArmor policy: support merged-/usr.
Acked-by: Christian Ehrhardt <christian.ehrhardt@canonical.co>
2016-12-12 14:08:35 +00:00
Cédric Bosdonnat
f03013c212 apparmor: move qemu-bridge-helper to libvirtd profile
qemu-bridge-helper is only called from libvirtd, it has to be moved
from the qemu domain abstraction to the usr.sbin.libvirtd profile.
2016-09-26 13:23:01 +02:00
Guido Günther
2e34cb5463 apparmor: Don't scrub environment of virtlogd process
otherwise we drop variables like XDG_RUNTIME_DIR with qemu:///session
and libvirtd faild to find virtlogd's socket.
2016-06-12 13:36:28 +02:00
Cole Robinson
da176bf6b7 examples: Use one top level makefile
Using one Makefile per example subdirectory essentially serializes 'make'
calls. Convert to one example/Makefile that builds and distributes
all the subdir files. This reduces example/ rebuild time from about 5.8
seconds to 1.5 seconds on my machine.

One slight difference is that we no longer ship Makefile.am with the
examples in the rpm. This was virtually useless anyways since the Makefile
was very specific to libvirt infrastructure, so wasn't generically
reusable anyways.

Tested with 'make distcheck' and 'make rpm'
2016-01-09 21:14:12 -05:00
Guido Günther
d8ca0cbd4b apparmor: add missing qemu binaries
This adds the qemu binaries as of 1.2.4 in Debian. It also removes a
duplicate sparc64 entry.
2015-11-25 08:35:06 +01:00
Cédric Bosdonnat
ec5c1dcb53 Apparmor: allow reading block-rbd.so 2015-04-24 10:47:42 +02:00
Cédric Bosdonnat
e4725cdb12 Apparmor: removed duplicate nscd rules 2015-04-20 09:32:04 +02:00
Cédric Bosdonnat
9e7b1e646d Apparmor qemu abstraction fixes for SLES
SLES 11 has legacy qemu-kvm package, /usr/bin/qemu-kvm and
/usr/share/qemu-kvm need to be accessed to domains.
2015-04-09 11:18:16 +02:00
Mike Latimer
338b07afa9 Grant access to helpers
Apparmor must not prevent access to required helper programs. The following
helpers should be allowed to run in unconfined execution mode:

 - libvirt_parthelper
 - libvirt_iohelper
2015-01-23 11:12:44 +01:00
Mike Latimer
c0273cd6f2 Fix apparmor issues for tck
The network and nwfilter tests contained in the libvirt-TCK testkit can fail
unless access to raw network packets is granted. Without this access, the
following apparmor error can be seen while running the tests:

  apparmor="DENIED" operation="create" parent=1 profile="/usr/sbin/libvirtd"
  pid=94731 comm="libvirtd" family="packet" sock_type="raw" protocol=768
2015-01-23 11:12:04 +01:00
Mike Latimer
b61fb8e8af Fix apparmor issues for Xen
In order for apparmor to work properly in Xen environments, the following
access rights need to be allowed:

 - Allow CAP_SYS_PACCT, which is required when resetting some multi-port
   Broadcom cards by writting to the PCI config space

 - Allow CAP_IPC_LOCK, which is required to lock/unlock memory. Without
   this setting, an error 'Resource temporarily unavailable' can be seen
   while attempting to mmap memory. At the same time, the following
   apparmor message is seen:

   apparmor="DENIED" operation="capable" parent=1 profile="/usr/sbin/libvirtd"
   pid=2097 comm="libvirtd" pid=2097 comm="libvirtd" capability=14
   capname="ipc_lock"

 - Allow access to distribution specific directories:
     /usr/{lib,lib64}/xen/bin
2015-01-23 11:11:53 +01:00
Cedric Bosdonnat
30c6aecc44 Teach AppArmor, that /usr/lib64 may exist.
The apparmor profiles forgot about /usr/lib64 folders, just add lib64
as a possible alternative to lib in the paths
2015-01-05 09:46:35 +01:00
Felix Geyer
2311e5c4ea apparmor: allow reading cap_last_cap
libcap-ng >= 0.7.4 fails when it can't read /sys/kernel/cap_last_cap
and thus running a qemu guest fails.

Allow reading cap_last_cap in the libvirt-qemu apparmor abstraction.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2014-09-04 14:24:47 +02:00
Cédric Bosdonnat
9265f8ab67 Rework lxc apparmor profile
Rework the apparmor lxc profile abstraction to mimic ubuntu's container-default.
This profile allows quite a lot, but strives to restrict access to
dangerous resources.

Removing the explicit authorizations to bash, systemd and cron files,
forces them to keep the lxc profile for all applications inside the
container. PUx permissions where leading to running systemd (and others
tasks) unconfined.

Put the generic files, network and capabilities restrictions directly
in the TEMPLATE.lxc: this way, users can restrict them on a per
container basis.
2014-07-15 12:57:05 -06:00
Cédric Bosdonnat
74e86b6b25 Fix apparmor profile to make vfio pci passthrough work
See lp#1276719 for the bug description. As virt-aa-helper doesn't know
the VFIO groups to use for the guest, allow access to all
/dev/vfio/[0-9]* and /dev/vfio/vfio files if there is a potential need
for vfio

Signed-off-by: Eric Blake <eblake@redhat.com>
2014-03-27 09:09:23 -06:00
Cédric Bosdonnat
ef7dc7d429 add support for apparmor in lxc-enter-namespace 2014-03-04 11:15:47 +00:00
Cédric Bosdonnat
43c030f046 LXC driver: generate apparmor profiles for guests
use_apparmor() was first designed to be called from withing libvirtd,
but libvirt_lxc also uses it. in libvirt_lxc, there is no need to check
whether to use apparmor or not: just use it if possible.
2014-03-04 11:07:05 +00:00
Cédric Bosdonnat
4f20084b12 AppArmor: Fix the place where the template should be installed
The security driver expects /etc/apparmor.d/libvirt/TEMPLATE but we
installed it to /etc/apparmor.d/libvirtd/TEMPLATE. Move the template to
the expected place since that code was here long before.
2014-02-12 06:34:32 -07:00
Felix Geyer
f88a3d9b0c apparmor: Improve profiles
Tested on Debian unstable.
The profile updates are partly taken from the Ubuntu trusty libvirt package.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
2014-02-07 19:16:51 +01:00
Guido Günther
37705c12be Allow to install apparmor profiles
Make it easy to install the shipped examples. The aim is to have
reasonably working templates so that distros only need to minimally
patch these and can feed things upstream more easily.

This was prompted by http://bugs.debian.org/725144
2014-01-07 23:10:24 +01:00
Eric Blake
d7f53c7b97 maint: use LGPL correctly
Several files called out COPYING or COPYING.LIB instead of using
the normal boilerplate.  It's especially important that we don't
call out COPYING from an LGPL file, since COPYING is traditionally
used for the GPL.  A few files were lacking copyright altogether.

* src/rpc/gendispatch.pl: Add missing copyright.
* Makefile.nonreentrant: Likewise.
* src/check-symfile.pl: Likewise.
* src/check-symsorting.pl: Likewise.
* src/driver.h: Likewise.
* src/internal.h: Likewise.
* tools/libvirt-guests.sh.in: Likewise.
* tools/virt-pki-validate.in: Mention copyright in comment, not just code.
* tools/virt-sanlock-cleanup.in: Likewise.
* src/rpc/genprotocol.pl: Spell out license terms.
* src/xen/xend_internal.h: Likewise.
* src/xen/xend_internal.c: Likewise.
* Makefile.am: Likewise.
* daemon/Makefile.am: Likewise.
* docs/Makefile.am: Likewise.
* docs/schemas/Makefile.am: Likewise.
* examples/apparmor/Makefile.am: Likewise.
* examples/domain-events/events-c/Makefile.am: Likewise.
* examples/dominfo/Makefile.am: Likewise.
* examples/domsuspend/Makefile.am: Likewise.
* examples/hellolibvirt/Makefile.am: Likewise.
* examples/openauth/Makefile.am: Likewise.
* examples/python/Makefile.am: Likewise.
* examples/systemtap/Makefile.am: Likewise.
* examples/xml/nwfilter/Makefile.am: Likewise.
* gnulib/lib/Makefile.am: Likewise.
* gnulib/tests/Makefile.am: Likewise.
* include/Makefile.am: Likewise.
* include/libvirt/Makefile.am: Likewise.
* python/Makefile.am: Likewise.
* python/tests/Makefile.am: Likewise.
* src/Makefile.am: Likewise.
* tests/Makefile.am: Likewise.
* tools/Makefile.am: Likewise.
* configure.ac: Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-05-20 14:03:48 -06:00
Richa Marwaha
b0e478986f apparmor: QEMU bridge helper policy updates
This patch provides AppArmor policy updates for the QEMU bridge helper.
The QEMU bridge helper is a SUID executable exec'd by QEMU that drops
capabilities to CAP_NET_ADMIN and adds a tap device to a network bridge.

Signed-off-by: Richa Marwaha <rmarwah@linux.vnet.ibm.com>
Signed-off-by: Corey Bryant<coreyb@linux.vnet.ibm.com>
2012-08-06 16:56:59 +02:00
Eric Blake
ff81956ac6 maint: add missing copyright notices
I went with the shorter license notice used by src/libvirt.c,
rather than spelling out the full LGPLv2+ clause into each of
these files.

* configure.ac: Declare copyright.
* all Makefile.am: Likewise.
2011-07-28 15:01:17 -06:00
Jamie Strandboge
3d7320403b update apparmor security driver for new udev paths
In the Ubuntu development release we recently got a new udev that
moves /var/run to /run, /var/lock to /run/lock and /dev/shm to /run/shm.
This change in udev requires updating the apparmor security driver in
libvirt[1].

Attached is a patch that:
 * adjusts src/security/virt-aa-helper.c to allow both
LOCALSTATEDIR/run/libvirt/**/%s.pid and /run/libvirt/**/%s.pid. While
the profile is not as precise, LOCALSTATEDIR/run/ is typically a symlink
to /run/ anyway, so there is no additional access (remember that
apparmor resolves symlinks, which is why this is still required even
if /var/run points to /run).
 * adjusts example/apparmor/libvirt-qemu paths for /dev/shm

[1]https://launchpad.net/bugs/810270

--
Jamie Strandboge             | http://www.canonical.com
2011-07-14 11:41:48 -06:00
John Williams
a1092070d4 microblaze: Add architecture support
Add libvirt support for MicroBlaze architecture as a QEMU target.  Based on mips/mipsel pattern.

Signed-off-by: John Williams <john.williams@petalogix.com>
2011-07-07 17:49:21 -06:00
Jamie Strandboge
2df320609a Improve the apparmor example
* examples/apparmor/libvirt-qemu examples/apparmor/usr.sbin.libvirtd
  examples/apparmor/usr.lib.libvirt.virt-aa-helper: Update the examples
2010-04-06 23:01:24 +02:00
Jamie Strandboge
ad905a195e add AppArmor test and examples to dist
tests/virt-aa-helper-test and examples/apparmor are not included in
official tarballs, but should be. Attached is a patch to fix that
which works when apparmor is and is not available.
2009-12-14 13:40:42 +01:00
Jamie Strandboge
a8a560dd3a AppArmor updates of examples
* examples/apparmor/libvirt-qemu: adds pulseaudio, alsa and preliminary
  save/restore to the example apparmor abstraction
* examples/apparmor/usr.sbin.libvirtd: allows libvirtd access to inet
  dgram, inet6 dgram, inet6 stream and /usr/lib/libvirt/*
2009-11-13 15:32:55 +01:00
Jamie Strandboge
624a7927f0 Documentation and examples for SVirt Apparmor driver
* docs/drvqemu.html.in: include documentation for AppArmor sVirt
  confinement
* examples/apparmor/TEMPLATE examples/apparmor/libvirt-qemu
  examples/apparmor/usr.lib.libvirt.virt-aa-helper
  examples/apparmor/usr.sbin.libvirtd: example templates and
  configuration files for SVirt Apparmor when using KVM/QEmu
2009-10-08 16:42:05 +02:00