1 # Copyright 1999-2015 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
5 # Eclass for installing SELinux policy, and optionally
6 # reloading the reference-policy based modules.
8 # @ECLASS: selinux-policy-2.eclass
11 # @BLURB: This eclass supports the deployment of the various SELinux modules in sec-policy
13 # The selinux-policy-2.eclass supports deployment of the various SELinux modules
14 # defined in the sec-policy category. It is responsible for extracting the
15 # specific bits necessary for single-module deployment (instead of full-blown
16 # policy rebuilds) and applying the necessary patches.
18 # Also, it supports for bundling patches to make the whole thing just a bit more
21 # @ECLASS-VARIABLE: MODS
23 # This variable contains the (upstream) module name for the SELinux module.
24 # This name is only the module name, not the category!
27 # @ECLASS-VARIABLE: BASEPOL
29 # This variable contains the version string of the selinux-base-policy package
30 # that this module build depends on. It is used to patch with the appropriate
31 # patch bundle(s) that are part of selinux-base-policy.
34 # @ECLASS-VARIABLE: POLICY_PATCH
36 # This variable contains the additional patch(es) that need to be applied on top
37 # of the patchset already contained within the BASEPOL variable. The variable
38 # can be both a simple string (space-separated) or a bash array.
41 # @ECLASS-VARIABLE: POLICY_FILES
43 # When defined, this contains the files (located in the ebuilds' files/
44 # directory) which should be copied as policy module files into the store.
45 # Generally, users would want to include at least a .te and .fc file, but .if
46 # files are supported as well. The variable can be both a simple string
47 # (space-separated) or a bash array.
50 # @ECLASS-VARIABLE: POLICY_TYPES
52 # This variable informs the eclass for which SELinux policies the module should
53 # be built. Currently, Gentoo supports targeted, strict, mcs and mls.
54 # This variable is the same POLICY_TYPES variable that we tell SELinux
55 # users to set in make.conf. Therefore, it is not the module that should
56 # override it, but the user.
57 : ${POLICY_TYPES:="targeted strict mcs mls"}
59 # @ECLASS-VARIABLE: SELINUX_GIT_REPO
61 # When defined, this variable overrides the default repository URL as used by
62 # this eclass. It allows end users to point to a different policy repository
63 # using a single variable, rather than having to set the packagename_LIVE_REPO
64 # variable for each and every SELinux policy module package they want to install.
65 # The default value is Gentoo's hardened-refpolicy repository.
66 : ${SELINUX_GIT_REPO:="git://anongit.gentoo.org/proj/hardened-refpolicy.git https://anongit.gentoo.org/git/proj/hardened-refpolicy.git"};
68 # @ECLASS-VARIABLE: SELINUX_GIT_BRANCH
70 # When defined, this variable sets the Git branch to use of the repository. This
71 # allows for users and developers to use a different branch for the entire set of
72 # SELinux policy packages, rather than having to override them one by one with the
73 # packagename_LIVE_BRANCH variable.
74 # The default value is the 'master' branch.
75 : ${SELINUX_GIT_BRANCH:="master"};
79 9999) extra_eclass="git-r3";
80 EGIT_REPO_URI="${SELINUX_GIT_REPO}";
81 EGIT_BRANCH="${SELINUX_GIT_BRANCH}";
82 EGIT_CHECKOUT_DIR="${WORKDIR}/refpolicy";;
85 inherit eutils ${extra_eclass}
89 HOMEPAGE="https://wiki.gentoo.org/wiki/Project:SELinux"
90 if [[ -n ${BASEPOL} ]] && [[ "${BASEPOL}" != "9999" ]];
92 SRC_URI="https://raw.githubusercontent.com/wiki/TresysTechnology/refpolicy/files/refpolicy-${PV}.tar.bz2
93 https://dev.gentoo.org/~swift/patches/selinux-base-policy/patchbundle-selinux-base-policy-${BASEPOL}.tar.bz2"
94 elif [[ "${BASEPOL}" != "9999" ]];
96 SRC_URI="https://raw.githubusercontent.com/wiki/TresysTechnology/refpolicy/files/refpolicy-${PV}.tar.bz2"
104 PATCHBUNDLE="${DISTDIR}/patchbundle-selinux-base-policy-${BASEPOL}.tar.bz2"
106 # Modules should always depend on at least the first release of the
107 # selinux-base-policy for which they are generated.
108 if [[ -n ${BASEPOL} ]];
110 RDEPEND=">=sys-apps/policycoreutils-2.0.82
111 >=sec-policy/selinux-base-policy-${BASEPOL}"
113 RDEPEND=">=sys-apps/policycoreutils-2.0.82
114 >=sec-policy/selinux-base-policy-${PV}"
118 >=sys-apps/checkpolicy-2.0.21"
121 0|1|2|3|4) die "EAPI<5 is not supported";;
125 EXPORT_FUNCTIONS src_unpack src_prepare src_compile src_install pkg_postinst pkg_postrm
127 # @FUNCTION: selinux-policy-2_src_unpack
129 # Unpack the policy sources as offered by upstream (refpolicy).
130 selinux-policy-2_src_unpack() {
131 if [[ "${BASEPOL}" != "9999" ]];
139 # @FUNCTION: selinux-policy-2_src_prepare
141 # Patch the reference policy sources with our set of enhancements. Start with
142 # the base patchbundle referred to by the ebuilds through the BASEPOL variable,
143 # then apply the additional patches as offered by the ebuild.
145 # Next, extract only those files needed for this particular module (i.e. the .te
146 # and .fc files for the given module in the MODS variable).
148 # Finally, prepare the build environments for each of the supported SELinux
149 # types (such as targeted or strict), depending on the POLICY_TYPES variable
151 selinux-policy-2_src_prepare() {
153 local add_interfaces=0;
155 # Create 3rd_party location for user-contributed policies
156 cd "${S}/refpolicy/policy/modules" && mkdir 3rd_party;
158 # Patch the sources with the base patchbundle
159 if [[ -n ${BASEPOL} ]] && [[ "${BASEPOL}" != "9999" ]];
162 EPATCH_MULTI_MSG="Applying SELinux policy updates ... " \
163 EPATCH_SUFFIX="patch" \
164 EPATCH_SOURCE="${WORKDIR}" \
169 # Call in epatch_user. We do this early on as we start moving
170 # files left and right hereafter.
173 # Copy additional files to the 3rd_party/ location
174 if [[ "$(declare -p POLICY_FILES 2>/dev/null 2>&1)" == "declare -a"* ]] ||
175 [[ -n ${POLICY_FILES} ]];
178 cd "${S}/refpolicy/policy/modules"
179 for POLFILE in ${POLICY_FILES[@]};
181 cp "${FILESDIR}/${POLFILE}" 3rd_party/ || die "Could not copy ${POLFILE} to 3rd_party/ location";
185 # Apply the additional patches refered to by the module ebuild.
186 # But first some magic to differentiate between bash arrays and strings
187 if [[ "$(declare -p POLICY_PATCH 2>/dev/null 2>&1)" == "declare -a"* ]] ||
188 [[ -n ${POLICY_PATCH} ]];
190 cd "${S}/refpolicy/policy/modules"
191 for POLPATCH in ${POLICY_PATCH[@]};
197 # Collect only those files needed for this particular module
199 modfiles="$(find ${S}/refpolicy/policy/modules -iname $i.te) $modfiles"
200 modfiles="$(find ${S}/refpolicy/policy/modules -iname $i.fc) $modfiles"
201 modfiles="$(find ${S}/refpolicy/policy/modules -iname $i.cil) $modfiles"
202 if [ ${add_interfaces} -eq 1 ];
204 modfiles="$(find ${S}/refpolicy/policy/modules -iname $i.if) $modfiles"
208 for i in ${POLICY_TYPES}; do
209 mkdir "${S}"/${i} || die "Failed to create directory ${S}/${i}"
210 cp "${S}"/refpolicy/doc/Makefile.example "${S}"/${i}/Makefile \
211 || die "Failed to copy Makefile.example to ${S}/${i}/Makefile"
213 cp ${modfiles} "${S}"/${i} \
214 || die "Failed to copy the module files to ${S}/${i}"
218 # @FUNCTION: selinux-policy-2_src_compile
220 # Build the SELinux policy module (.pp file) for just the selected module, and
221 # this for each SELinux policy mentioned in POLICY_TYPES
222 selinux-policy-2_src_compile() {
224 for useflag in ${IUSE};
226 use ${useflag} && makeuse="${makeuse} -D use_${useflag}"
229 for i in ${POLICY_TYPES}; do
230 # Support USE flags in builds
231 export M4PARAM="${makeuse}"
232 emake NAME=$i -C "${S}"/${i} || die "${i} compile failed"
236 # @FUNCTION: selinux-policy-2_src_install
238 # Install the built .pp (or copied .cil) files in the correct subdirectory within
239 # /usr/share/selinux.
240 selinux-policy-2_src_install() {
241 local BASEDIR="/usr/share/selinux"
243 for i in ${POLICY_TYPES}; do
245 einfo "Installing ${i} ${j} policy package"
246 insinto ${BASEDIR}/${i}
247 if [ -f "${S}/${i}/${j}.pp" ] ; then
248 doins "${S}"/${i}/${j}.pp || die "Failed to add ${j}.pp to ${i}"
249 elif [ -f "${S}/${i}/${j}.cil" ] ; then
250 doins "${S}"/${i}/${j}.cil || die "Failed to add ${j}.cil to ${i}"
253 if [[ "${POLICY_FILES[@]}" == *"${j}.if"* ]];
255 insinto ${BASEDIR}/${i}/include/3rd_party
256 doins "${S}"/${i}/${j}.if || die "Failed to add ${j}.if to ${i}"
262 # @FUNCTION: selinux-policy-2_pkg_postinst
264 # Install the built .pp (or copied .cil) files in the SELinux policy stores, effectively
265 # activating the policy on the system.
266 selinux-policy-2_pkg_postinst() {
267 # build up the command in the case of multiple modules
270 for i in ${POLICY_TYPES}; do
271 if [ "${i}" == "strict" ] && [ "${MODS}" = "unconfined" ];
273 einfo "Ignoring loading of unconfined module in strict module store.";
276 einfo "Inserting the following modules into the $i module store: ${MODS}"
278 cd /usr/share/selinux/${i} || die "Could not enter /usr/share/selinux/${i}"
279 for j in ${MODS} ; do
280 if [ -f "${j}.pp" ] ; then
281 COMMAND="${j}.pp ${COMMAND}"
282 elif [ -f "${j}.cil" ] ; then
283 COMMAND="${j}.cil ${COMMAND}"
286 semodule -s ${i} -i ${COMMAND}
289 ewarn "SELinux module load failed. Trying full reload...";
290 if [ "${i}" == "targeted" ];
292 semodule -s ${i} -b base.pp -i $(ls *.pp | grep -v base.pp);
294 semodule -s ${i} -b base.pp -i $(ls *.pp | grep -v base.pp | grep -v unconfined.pp);
298 ewarn "Failed to reload SELinux policies."
300 ewarn "If this is *not* the last SELinux module package being installed,"
301 ewarn "then you can safely ignore this as the reloads will be retried"
302 ewarn "with other, recent modules."
304 ewarn "If it is the last SELinux module package being installed however,"
305 ewarn "then it is advised to look at the error above and take appropriate"
306 ewarn "action since the new SELinux policies are not loaded until the"
307 ewarn "command finished succesfully."
309 ewarn "To reload, run the following command from within /usr/share/selinux/${i}:"
310 ewarn " semodule -b base.pp -i \$(ls *.pp | grep -v base.pp)"
312 ewarn " semodule -b base.pp -i \$(ls *.pp | grep -v base.pp | grep -v unconfined.pp)"
313 ewarn "depending on if you need the unconfined domain loaded as well or not."
315 einfo "SELinux modules reloaded succesfully."
318 einfo "SELinux modules loaded succesfully."
323 # Relabel depending packages
325 if [ -x /usr/bin/qdepends ] ; then
326 PKGSET=$(/usr/bin/qdepends -Cq -r -Q ${CATEGORY}/${PN} | grep -v "sec-policy/selinux-");
327 elif [ -x /usr/bin/equery ] ; then
328 PKGSET=$(/usr/bin/equery -Cq depends ${CATEGORY}/${PN} | grep -v "sec-policy/selinux-");
330 if [ -n "${PKGSET}" ] ; then
335 # @FUNCTION: selinux-policy-2_pkg_postrm
337 # Uninstall the module(s) from the SELinux policy stores, effectively
338 # deactivating the policy on the system.
339 selinux-policy-2_pkg_postrm() {
340 # Only if we are not upgrading
341 if [[ -z "${REPLACED_BY_VERSION}" ]];
343 # build up the command in the case of multiple modules
346 COMMAND="-r ${i} ${COMMAND}"
349 for i in ${POLICY_TYPES}; do
350 einfo "Removing the following modules from the $i module store: ${MODS}"
352 semodule -s ${i} ${COMMAND}
355 ewarn "SELinux module unload failed.";
357 einfo "SELinux modules unloaded succesfully."