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Currently, we are mixing: #if HAVE_BLAH with #if WITH_BLAH.
Things got way better with Pavel's work on meson, but apparently,
mixing these two lead to confusing and easy to miss bugs (see
31fb929eca for instance). While we were forced to use HAVE_
prefix with autotools, we are free to chose our own prefix with
meson and since WITH_ prefix appears to be more popular let's use
it everywhere.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Historically, we've used security_context_t for variables passed
to libselinux APIs. But almost 7 years ago, libselinux developers
admitted in their API that in fact, it's just a 'char *' type
[1]. Ever since then the APIs accept 'char *' instead, but they
kept the old alias just for API stability. Well, not anymore [2].
1: 9eb9c93275
2: 7a124ca275
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
All of the listed functions are available in libselinux version 2.2.
Our supported OSes start with version 2.5 so there is no need to check
it.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
All supported OSes have at least libselinux version 2.5 so it's safe
to drop this check.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Eliminate direct use of normal setenv/unsetenv calls in
favour of GLib's wrapper. This eliminates two gnulib
modules
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
All OSes that we support have libselinux >= 2.5 except for Ubuntu 16.04
where the version is 2.4.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All the callers of these functions only check for a negative
return value.
However, virNetDevOpenvswitchGetVhostuserIfname is documented
as returning 1 for openvswitch interfaces so preserve that.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
All of the ones being removed are pulled in by internal.h. The only
exception is sanlock which expects the application to include <stdint.h>
before sanlock's headers, because sanlock prototypes use fixed width
int, but they don't include stdint.h themselves, so we have to leave
that one in place.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
The proper file that should be included is `sys/xattr.h` as that comes from
`glibc` and not `attr/xattr.h` which ships with the `attr` utility.
We're most probably not the only ones because `attr/xattr.h` added a #warning to
their include resulting in the following compilation errors:
In file included from securityselinuxlabeltest.c:31:0:
/usr/include/attr/xattr.h:5:2: error: #warning "Please change your <attr/xattr.h> includes to <sys/xattr.h>" [-Werror=cpp]
#warning "Please change your <attr/xattr.h> includes to <sys/xattr.h>"
^~~~~~~
In file included from securityselinuxhelper.c:37:0:
/usr/include/attr/xattr.h:5:2: error: #warning "Please change your <attr/xattr.h> includes to <sys/xattr.h>" [-Werror=cpp]
#warning "Please change your <attr/xattr.h> includes to <sys/xattr.h>"
^~~~~~~
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Yet again, selinux has been adding const-correctness; this change
is ABI-compatible, but breaks API, which affects us when we try to
override things in our testsuite:
../../tests/securityselinuxhelper.c:307:24: error: conflicting types for 'selabel_open'
struct selabel_handle *selabel_open(unsigned int backend,
^~~~~~~~~~~~
In file included from ../../tests/securityselinuxhelper.c:32:0:
/usr/include/selinux/label.h:73:24: note: previous declaration of 'selabel_open' was here
The problem is a new 'const' prior to the second parameter.
Fix it the same way we did in commit 292d3f2d: check for the new
const at configure time.
Signed-off-by: Eric Blake <eblake@redhat.com>
Commit 292d3f2d fixed the build with libselinux 2.3, but missed
some suggestions by eblake
https://www.redhat.com/archives/libvir-list/2014-May/msg00977.html
This patch changes the macro introduced in 292d3f2d to either be
empty in the case of newer libselinux, or contain 'const' in the
case of older libselinux. The macro is then used directly in
tests/securityselinuxhelper.c.
Several function signatures changed in libselinux 2.3, now taking
a 'const char *' instead of 'security_context_t'. The latter is
defined in selinux/selinux.h as
typedef char *security_context_t;
Signed-off-by: Eric Blake <eblake@redhat.com>
Add fake implementations of:
- is_selinux_enabled
- security_disable
- selinux_virtual_domain_context_path
- selinux_virtual_image_context_path
- selinux_lxc_contexts_path
- selabel_open
- selabel_close
- selabel_lookup_raw
The selabel_* functions back onto the real implementations if SELinux is
enabled on the test system, otherwise we just implement a fake selabel
handle which errors out on all labelling lookups.
With these changes in place, securityselinuxtest and
securityselinuxlabeltest don't need to skip all tests if SELinux isn't
available; they can exercise much of the security manager code.
Signed-off-by: Michael Chapman <mike@very.puzzling.org>
Daniel Berrange (correctly) pointed out that we should do a better
job of testing selinux labeling fallbacks on NFS disks that lack
labeling support.
* tests/securityselinuxhelper.c (includes): Makefile already
guaranteed xattr support. Add additional headers.
(init_syms): New function, borrowing from vircgroupmock.c.
(setfilecon_raw, getfilecon_raw): Fake NFS failure.
(statfs): Fake an NFS mount point.
(security_getenforce, security_get_boolean_active): Don't let host
environment affect test.
* tests/securityselinuxlabeldata/nfs.data: New file.
* tests/securityselinuxlabeldata/nfs.xml: New file.
* tests/securityselinuxlabeltest.c (testSELinuxCreateDisks)
(testSELinuxDeleteDisks): Setup and cleanup for fake NFS mount.
(testSELinuxCheckLabels): Test handling of SELinux NFS denial.
Fix memory leak.
(testSELinuxLabeling): Avoid infinite loop on dirty tree.
(mymain): Add new test.
There are many aspects of the guest XML which result in the
SELinux driver applying file labelling. With the increasing
configuration options it is desirable to test this behaviour.
It is not possible to assume that the test suite has the
ability to set SELinux labels. Most filesystems though will
support extended attributes. Thus for the purpose of testing,
it is possible to extend the existing LD_PRELOAD hack to
override setfilecon() and getfilecon() to simply use the
'user.libvirt.selinux' attribute for the sake of testing.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
We are currently able to work only with non-translated SELinux
contexts, but we are using functions that work with translated
contexts throughout the code. This patch swaps all SELinux context
translation relative calls with their raw sisters to avoid parsing
problems.
The problems can be experienced with mcstrans for example. The
difference is that if you have translations enabled (yum install
mcstrans; service mcstrans start), fgetfilecon_raw() will get you
something like 'system_u:object_r:virt_image_t:s0', whereas
fgetfilecon() will return 'system_u:object_r:virt_image_t:SystemLow'
that we cannot parse.
I was trying to confirm that the _raw variants were here since the dawn of
time, but the only thing I see now is that it was imported together in
the upstream repo [1] from svn, so before 2008.
Thanks Laurent Bigonville for finding this out.
[1] http://oss.tresys.com/git/selinux.git
https://www.gnu.org/licenses/gpl-howto.html recommends that
the 'If not, see <url>.' phrase be a separate sentence.
* tests/securityselinuxhelper.c: Remove doubled line.
* tests/securityselinuxtest.c: Likewise.
* globally: s/; If/. If/
This test case validates the correct generation of SELinux labels
for VMs, wrt the current process label. Since we can't actually
change the label of the test program process, we create a shared
library libsecurityselinuxhelper.so which overrides the getcon()
and setcon() libselinux.so functions. When started the test case
will check to see if LD_PRELOAD is set, and if not, it will
re-exec() itself setting LD_PRELOAD=libsecurityselinuxhelper.so
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
