In the past we wrote audit into the semanage tool chain. But if a tool like useradd
called dirreclty into libsemanage we did not get auditing. Now useradd calls directly,
so we need this patch.
Another fix in this patch is to default the login mappings MLS to the selected SELinux User.
If a caller just specified the name staff_u, then the code will look up the range of staff_u
and apply it to the mapping.
In the patch to fix a minor memory leak, I introduced a garuanteed
segfault. The point to the stack variable will never be NULL, whereas
the value on the stack will be.
Signed-off-by: Eric Paris <eparis@redhat.com>
If vork() failed we would leak the arguments created in split_args().
Reorder the function so it will hopefully be easy to read and will not
leak memory.
Signed-off-by: Eric Paris <eparis@redhat.com>
We have minuid_set = 0 at the top of the function and then do a test
like:
if (!minuid_set || something)
But since minuid_set is always 0, we always call this code. Get rid of
the pointless conditional.
Signed-off-by: Eric Paris <eparis@redhat.com>
Right before the call to semanage_list_sort() we do some cleanup.
Including endpwent(); free(rbuf); semanage_list_destroy(&shells); If
the call to the list sort fails we will go to fail: and will do those
cleanups a second time. Whoops. Do the list sort before the generic
cleanups so the failure code isn't run after the default cleanup.
Signed-off-by: Eric Paris <eparis@redhat.com>
If the strdup failed, we would return without freeing tmp_key. This is
obviously a memory leak. So free that if we are finished with it.
Signed-off-by: Eric Paris <eparis@redhat.com>
We generate a list of users, but we do not free that list on error.
Just keep popping and freeing them on error.
Signed-off-by: Eric Paris <eparis@redhat.com>
We use creat to create the lock file needed later. But we never close
that fd, so it just sits around until the program exits. After we
create the file we don't need to hold onto the fd. close it.
Signed-off-by: Eric Paris <eparis@redhat.com>
If get_home_dirs() was called without usepasswd we would generate the
entire shell list, but would never use that list. We would then not
free that list when we returned the homedir_list. Instead, do not
create the list of shells until after we know it will be used.
Signed-off-by: Eric Paris <eparis@redhat.com>
Inside split_args we do a = realloc(b) and strdup. If the realloc
succeeds and then the strdup fails, we return NULL to the caller. The
caller will then jump to an error code which will do a free(b). This is
fine if the realloc failed, but is a big problem if realloc worked. If
it worked b is now meaningless and a needs to be freed.
I change the function interface to return an error and to update "b"
from the caller.
Signed-off-by: Eric Paris <eparis@redhat.com>
We did a bunch of:
if ((blah = function(a0, a1, a2)) == NULL) {
goto err;
} else {
something = blah;
}
Which takes 5 lines and is a pain to read. Instead:
blah = function(a0, a1, a2);
if (blah == NULL)
goto err;
something = blah;
Which takes 4 lines and is easier to read!
Winning!
Signed-off-by: Eric Paris <eparis@redhat.com>
If you specified a portion of the module name the code would disable the module rather
then giving you an error. For example.
semodule -d http
Would disable the httpd module.
As a matter of fact
semodule -r h
Would disable the first module file name that began with h.
This patch gets the real file name out of the modules and compares it to the name specified.
It also consolodates a bunch of duplicated code, and fixes a return code bug.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
If you are building "standard" policies(not MCS/MLS), libsemanage
will crash, which caused by strdup() to "level" NULL pointers.
For example, semodule -s refpolicy -b base.pp -i a.pp
Signed-off-by: Eric Paris <eparis@redhat.com>
We generate pkg-config --libs and use that to build the libselinux
python so file. We do not use it to build the libsemanage versions. We
also never use the ruby equivalent. So stop calling pkg-config
uselessly.
Signed-off-by: Eric Paris <eparis@redhat.com>
We explicitly set the soname of the python and ruby files. We don't
need this. We are using the -o name as the soname, so just let the
toolchain do its thing. It just makes the Makefile nicer to read.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
In python 3.2 we hit a problem where the fconext was garbage. We didn't
see this in python 2.7. The reason is because python3.2 would free and
reuse the memory and python 2.7 just happened to leave it alone.
Instead of using memory that python might use for something else, use
strdup() to get a local copy which we can free when we are finished with
it.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
If the private semanage.conf file is unreadable for some reason (usually
ENOENT) fallback to the default file.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
We calculated a length, allocated a space for the string, then used
snprintf to fill the array giving it a different length. Rather than
doing all that math ourselves, just use asprintf and let libraries get
it right.
Signed-off-by: Eric Paris <eparis@redhat.com>
SELinux ruby bindings didn't build from the top level
the swig generated .c file wasn't gitignored
use pkg-config for ruby info like we do for python
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
swig creates C files with warnings. Turn off the warnings so the build
is clean. We can't help the code it produces anyway...
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
Having magic numbers in the code is a bad idea, using a macro is better.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
This allow to build the ruby module for both ruby 1.8 and 1.9.1 (the
way it's done for the python module)
Signed-off-by: Laurent Bigonville <bigon@debian.org>
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
Do not link against libpython, the interpreter is already linked to it.
In Debian this is usually considered bad practice.
Signed-off-by: Author: Laurent Bigonville <bigon@debian.org>
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
Currently the semanage.conf file is hard coded to /etc/selinux/semanage.conf
even when an alternate root path is specified. Use the semanage.conf
found inside the altername root instead of the system global version.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
If you build a distribution without MLS turned on, libsemanage will
crash if given a user without a level. This patch allows users
without levels to be passed in.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
For a long time /root has been treated differently in Red Hat
Distributions then upstream policy.
We do not want to label /root the same as a users homedir. Because of
this we have carried a patch in libsemanage/genhomedircon.c to ignore
/root.
This patch adds a flag to semanage.conf, ignoredirs. That will allow
distributions or users to specify directories that genhomedircon
should ignore when setting up users homedir labeling.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
When certain programs were run which created new files they would get
default permissions based on the current users umask. However these
files should get the same permissions as those files which they
replaced. Do that.
Patch from: Stephen Smalley
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
The makefile which generated the package config files did not have the
VERSION file as a dependancy. Thus if you updated a tree you have
previously build the .pc file wouldn't be rebuilt and the old version
would be reinstalled.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
A few calls to semanage_store_access_check() in the libsemanage
tests passed an argument even though it is a void function.
Signed-off-by: Guido Trentalancia <guido@trentalancia.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
Change the default "make" target for the libraries from "install" to
"all" in the makefiles.
Signed-off-by: Guido Trentalancia <guido@trentalancia.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
By default only the effective branch of a tunable conditional would be
expanded and written to raw policy, while all needless unused branches
would be discarded.
Add a new option '-P' or "--preserve_tunables" to the semodule program.
By default it is 0, if set to 1 then the above preserve_tunables flag
in the sepol_handle_t would be set to 1 accordingly.
Signed-off-by: Harry Ciao <qingtao.cao@windriver.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
Change the way libsemanage handles disabled modules. In the current
method libsemanage renames the FOO.pp file to FOO.pp.disabled and then
the rebuild process ignores *.disabled modules.
Since we want to start shipping
/etc/selinux/targeted/modules/active/modules/*.pp within the payload of
the rpm. If we continued this method, a policy update would re-enable a
module.
The new mechanism will just create a symbolic link between FOO.pp and
FOO.pp.disabled. Then the library will check all modules, and if a
module has a link, it will not be compiled into the policy. This solves
the rpm update problem. and actually gives us an easier update
capability since if FOO.pp.disabled already exists using the old method,
it will continue to work with the new method.
Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Dan Walsh <dwalsh@redhat.com>
