Adding updated selinux-policy-2 eclass

1 files changed, 195 insertions, 0 deletions

diff --git a/eclass/selinux-policy-2.eclass b/eclass/selinux-policy-2.eclass
new file mode 100644
index 00000000..3c42633c
--- /dev/null
+++ b/eclass/selinux-policy-2.eclass
@@ -0,0 +1,195 @@
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/eclass/selinux-policy-2.eclass,v 1.6 2011/05/20 19:06:07 blueness Exp $
+
+# Eclass for installing SELinux policy, and optionally
+# reloading the reference-policy based modules.
+
+# @ECLASS: selinux-policy-2.eclass
+# @MAINTAINER: 
+# selinux@gentoo.org
+# @BLURB: This eclass supports the deployment of the various SELinux modules in sec-policy
+# @DESCRIPTION:
+# The selinux-policy-2.eclass supports deployment of the various SELinux modules
+# defined in the sec-policy category. It is responsible for extracting the
+# specific bits necessary for single-module deployment (instead of full-blown
+# policy rebuilds) and applying the necessary patches.
+# 
+# Also, it supports for bundling patches to make the whole thing just a bit more
+# manageable.
+
+# @ECLASS-VARIABLE: MODS
+# @DESCRIPTION: 
+# This variable contains the (upstream) module name for the SELinux module.
+# This name is only the module name, not the category!
+: ${MODS:="_illegal"}
+
+# @ECLASS-VARIABLE: BASEPOL
+# @DESCRIPTION:
+# This variable contains the version string of the selinux-base-policy package
+# that this module build depends on. It is used to patch with the appropriate
+# patch bundle(s) that are part of selinux-base-policy. 
+: ${BASEPOL:="0"}
+
+# @ECLASS-VARIABLE: POLICY_PATCH
+# @DESCRIPTION:
+# This variable contains the additional patch(es) that need to be applied on top
+# of the patchset already contained within the BASEPOL variable. 
+: ${POLICY_PATCH:=""}
+
+# @ECLASS-VARIABLE: POLICY_TYPES
+# @DESCRIPTION:
+# This variable informs the eclass for which SELinux policies the module should
+# be built. Currently, Gentoo supports targeted, strict, mcs and mls.
+# This variable is the same POLICY_TYPES variable that we tell SELinux
+# users to set in /etc/make.conf. Therefor, it is not the module that should
+# override it, but the user.
+: ${POLICY_TYPES:="targeted strict mcs mls"}
+
+inherit eutils
+
+IUSE=""
+
+HOMEPAGE="http://www.gentoo.org/proj/en/hardened/selinux/"
+if [[ "${BASEPOL}" == "0" ]];
+then
+	SRC_URI="http://oss.tresys.com/files/refpolicy/refpolicy-${PV}.tar.bz2"
+else
+	SRC_URI="http://oss.tresys.com/files/refpolicy/refpolicy-${PV}.tar.bz2
+		http://dev.gentoo.org/~blueness/patchbundle-selinux-base-policy/patchbundle-selinux-base-policy-${BASEPOL}.tar.bz2"
+fi
+
+LICENSE="GPL-2"
+SLOT="0"
+S="${WORKDIR}/"
+PATCHBUNDLE="${DISTDIR}/patchbundle-selinux-base-policy-${BASEPOL}.tar.bz2"
+
+# Modules should always depend on at least the first release of the
+# selinux-base-policy for which they are generated.
+if [[ "${BASEPOL}" == "0" ]];
+then
+	RDEPEND=">=sys-apps/policycoreutils-2.0.82
+		>=sec-policy/selinux-base-policy-${PV}"
+else
+	RDEPEND=">=sys-apps/policycoreutils-2.0.82
+		>=sec-policy/selinux-base-policy-${BASEPOL}"
+fi
+DEPEND="${RDEPEND}
+	sys-devel/m4
+	>=sys-apps/checkpolicy-2.0.21"
+
+SELINUX_EXPF="src_unpack src_compile src_install pkg_postinst"
+case "${EAPI:-0}" in
+	2|3|4) SELINUX_EXPF+=" src_prepare" ;;
+	*) ;;
+esac
+
+EXPORT_FUNCTIONS ${SELINUX_EXPF}
+
+# @FUNCTION: selinux-policy-2_src_unpack
+# @DESCRIPTION:
+# Unpack the policy sources as offered by upstream (refpolicy). In case of EAPI
+# older than 2, call src_prepare too.
+selinux-policy-2_src_unpack() {
+	unpack ${A}
+
+	if [[ ${EAPI:-0} -le 1 ]];
+	then
+		# Call src_prepare explicitly for EAPI 0 or 1
+		selinux-policy-2_src_prepare
+	fi
+}
+
+# @FUNCTION: selinux-policy-2_src_prepare
+# @DESCRIPTION:
+# Patch the reference policy sources with our set of enhancements. Start with
+# the base patchbundle referred to by the ebuilds through the BASEPOL variable,
+# then apply the additional patches as offered by the ebuild.
+# 
+# Next, extract only those files needed for this particular module (i.e. the .te
+# and .fc files for the given module in the MODS variable).
+# 
+# Finally, prepare the build environments for each of the supported SELinux
+# types (such as targeted or strict), depending on the POLICY_TYPES variable
+# content.
+selinux-policy-2_src_prepare() {
+	local modfiles
+
+	# Patch the sources with the base patchbundle
+	if [[ "${BASEPOL}" != "0" ]];
+	then
+		cd "${S}"
+		epatch "${PATCHBUNDLE}"
+	fi
+
+	# Apply the additional patches refered to by the module ebuild
+	if [ -n "${POLICY_PATCH}" ];
+	then
+		for POLPATCH in "${POLICY_PATCH}";
+		do
+			cd "${S}/refpolicy/policy/modules"
+			# Although epatch dies in EAPI=4 by itself, we support other EAPIs
+			# too for the time being, so we explicitly die on it.
+			epatch "${POLPATCH}" || die "Failed to apply patch ${POLPATCH}"
+		done
+	fi
+
+	# Collect only those files needed for this particular module
+	for i in ${MODS}; do
+		modfiles="`find ${S}/refpolicy/policy/modules -iname $i.te` $modfiles"
+		modfiles="`find ${S}/refpolicy/policy/modules -iname $i.fc` $modfiles"
+	done
+
+	for i in ${POLICY_TYPES}; do
+		mkdir "${S}"/${i}
+		cp "${S}"/refpolicy/doc/Makefile.example "${S}"/${i}/Makefile
+
+		cp ${modfiles} "${S}"/${i}
+	done
+}
+
+# @FUNCTION: selinux-policy-2_src_compile
+# @DESCRIPTION: 
+# Build the SELinux policy module (.pp file) for just the selected module, and
+# this for each SELinux policy mentioned in POLICY_TYPES
+selinux-policy-2_src_compile() {
+	for i in ${POLICY_TYPES}; do
+		make NAME=$i -C "${S}"/${i} || die "${i} compile failed"
+	done
+}
+
+# @FUNCTION: selinux-policy-2_src_install
+# @DESCRIPTION:
+# Install the built .pp files in the correct subdirectory within
+# /usr/share/selinux.
+selinux-policy-2_src_install() {
+	local BASEDIR="/usr/share/selinux"
+
+	for i in ${POLICY_TYPES}; do
+		for j in ${MODS}; do
+			echo "Installing ${i} ${j} policy package"
+			insinto ${BASEDIR}/${i}
+			doins "${S}"/${i}/${j}.pp
+		done
+	done
+}
+
+# @FUNCTION: selinux-policy-2_pkg_postinst
+# @DESCRIPTION:
+# Install the built .pp files in the SELinux policy stores, effectively
+# activating the policy on the system.
+selinux-policy-2_pkg_postinst() {
+	# build up the command in the case of multiple modules
+	local COMMAND
+	for i in ${MODS}; do
+		COMMAND="-i ${i}.pp ${COMMAND}"
+	done
+
+	for i in ${POLICY_TYPES}; do
+		einfo "Inserting the following modules into the $i module store: ${MODS}"
+
+		cd /usr/share/selinux/${i}
+		semodule -s ${i} ${COMMAND} || die "Failed to load in modules ${MODS} in the $i policy store"
+	done
+}
+