DEFAULT_ENFORCING ??= "enforcing"

SECTION = "admin"
LICENSE = "GPLv2"

LIC_FILES_CHKSUM = "file://${S}/COPYING;md5=393a5ca445f6965873eca0259a17f833"

PROVIDES += "virtual/refpolicy"
RPROVIDES_${PN} += "refpolicy"

# Specific config files for Poky
SRC_URI += "file://customizable_types  \
	    file://setrans-mls.conf  \
	    file://setrans-mcs.conf  \
	   "

# Base patches applied to all Yocto-based platforms.  Your own version of
# refpolicy should provide a version of these and place them in your own
# refpolicy-${PV} directory.
SRC_URI += " \
        file://0001-fc-subs-volatile-alias-common-var-volatile-paths.patch \
        file://0002-fc-subs-busybox-set-aliases-for-bin-sbin-and-usr.patch \
        file://0003-fc-hostname-apply-policy-to-common-yocto-hostname-al.patch \
        file://0004-fc-bash-apply-usr-bin-bash-context-to-bin-bash.bash.patch \
        file://0005-fc-resolv.conf-label-resolv.conf-in-var-run-properly.patch \
        file://0006-fc-login-apply-login-context-to-login.shadow.patch \
        file://0007-fc-bind-fix-real-path-for-bind.patch \
        file://0008-fc-hwclock-add-hwclock-alternatives.patch \
        file://0009-fc-dmesg-apply-policy-to-dmesg-alternatives.patch \
        file://0010-fc-ssh-apply-policy-to-ssh-alternatives.patch \
        file://0011-fc-sysnetwork-apply-policy-to-ip-alternatives.patch \
        file://0012-fc-udev-apply-policy-to-udevadm-in-libexec.patch \
        file://0013-fc-rpm-apply-rpm_exec-policy-to-cpio-binaries.patch \
        file://0014-fc-su-apply-policy-to-su-alternatives.patch \
        file://0015-fc-fstools-fix-real-path-for-fstools.patch \
        file://0016-fc-init-fix-update-alternatives-for-sysvinit.patch \
        file://0017-fc-brctl-apply-policy-to-brctl-alternatives.patch \
        file://0018-fc-corecommands-apply-policy-to-nologin-alternatives.patch \
        file://0019-fc-locallogin-apply-policy-to-sulogin-alternatives.patch \
        file://0020-fc-ntp-apply-policy-to-ntpd-alternatives.patch \
        file://0021-fc-kerberos-apply-policy-to-kerberos-alternatives.patch \
        file://0022-fc-ldap-apply-policy-to-ldap-alternatives.patch \
        file://0023-fc-postgresql-apply-policy-to-postgresql-alternative.patch \
        file://0024-fc-screen-apply-policy-to-screen-alternatives.patch \
        file://0025-fc-usermanage-apply-policy-to-usermanage-alternative.patch \
        file://0026-fc-getty-add-file-context-to-start_getty.patch \
        file://0027-fc-init-add-file-context-to-etc-network-if-files.patch \
        file://0028-fc-vlock-apply-policy-to-vlock-alternatives.patch \
        file://0029-fc-cron-apply-policy-to-etc-init.d-crond.patch \
        file://0030-file_contexts.subs_dist-set-aliase-for-root-director.patch \
        file://0031-policy-modules-system-logging-add-rules-for-the-syml.patch \
        file://0032-policy-modules-system-logging-add-rules-for-syslogd-.patch \
        file://0033-policy-modules-system-logging-add-domain-rules-for-t.patch \
        file://0034-policy-modules-kernel-files-add-rules-for-the-symlin.patch \
        file://0035-policy-modules-kernel-terminal-add-rules-for-bsdpty_.patch \
        file://0036-policy-modules-kernel-terminal-don-t-audit-tty_devic.patch \
        file://0037-policy-modules-services-avahi-allow-avahi_t-to-watch.patch \
        file://0038-policy-modules-system-getty-allow-getty_t-watch-gett.patch \
        file://0039-policy-modules-services-bluetooth-allow-bluetooth_t-.patch \
        file://0040-policy-modules-roles-sysadm-allow-sysadm-to-run-rpci.patch \
        file://0041-policy-modules-services-rpc-add-capability-dac_read_.patch \
        file://0042-policy-modules-services-rpcbind-allow-rpcbind_t-to-c.patch \
        file://0043-policy-modules-services-rngd-fix-security-context-fo.patch \
        file://0044-policy-modules-system-authlogin-allow-chkpwd_t-to-ma.patch \
        file://0045-policy-modules-system-udev-allow-udevadm_t-to-search.patch \
        file://0046-policy-modules-udev-do-not-audit-udevadm_t-to-read-w.patch \
        file://0047-policy-modules-services-rdisc-allow-rdisc_t-to-searc.patch \
        file://0048-policy-modules-system-logging-fix-auditd-startup-fai.patch \
        file://0049-policy-modules-services-ssh-make-respective-init-scr.patch \
        file://0050-policy-modules-kernel-terminal-allow-loging-to-reset.patch \
        file://0051-policy-modules-system-selinuxutil-allow-semanage_t-t.patch \
        file://0052-policy-modules-system-sysnetwork-allow-ifconfig_t-to.patch \
        file://0053-policy-modules-services-ntp-allow-ntpd_t-to-watch-sy.patch \
        file://0054-policy-modules-system-systemd-enable-support-for-sys.patch \
        file://0055-policy-modules-system-logging-fix-systemd-journald-s.patch \
        file://0056-policy-modules-roles-sysadm-allow-sysadm_t-to-watch-.patch \
        file://0057-policy-modules-system-systemd-add-capability-mknod-f.patch \
        file://0058-policy-modules-system-systemd-systemd-gpt-auto-gener.patch \
        file://0059-policy-modules-services-rpc-fix-policy-for-nfsserver.patch \
        file://0060-policy-modules-services-rpc-make-rpcd_t-MLS-trusted-.patch \
        file://0061-policy-modules-roles-sysadm-MLS-sysadm-rw-to-clearan.patch \
        file://0062-policy-modules-system-mount-make-mount_t-domain-MLS-.patch \
        file://0063-policy-modules-system-setrans-allow-setrans-to-acces.patch \
        file://0064-policy-modules-admin-dmesg-make-dmesg_t-MLS-trusted-.patch \
        file://0065-policy-modules-kernel-kernel-make-kernel_t-MLS-trust.patch \
        file://0066-policy-modules-system-init-make-init_t-MLS-trusted-f.patch \
        file://0067-policy-modules-system-systemd-make-systemd-tmpfiles_.patch \
        file://0068-policy-modules-system-logging-add-the-syslogd_t-to-t.patch \
        file://0069-policy-modules-system-init-make-init_t-MLS-trusted-f.patch \
        file://0070-policy-modules-system-init-all-init_t-to-read-any-le.patch \
        file://0071-policy-modules-system-logging-allow-auditd_t-to-writ.patch \
        file://0072-policy-modules-kernel-kernel-make-kernel_t-MLS-trust.patch \
        file://0073-policy-modules-system-systemd-make-systemd-logind-do.patch \
        file://0074-policy-modules-system-systemd-systemd-user-sessions-.patch \
        file://0075-policy-modules-system-systemd-systemd-networkd-make-.patch \
        file://0076-policy-modules-system-systemd-systemd-resolved-make-.patch \
        file://0077-policy-modules-system-systemd-make-systemd-modules_t.patch \
        file://0078-policy-modules-system-systemd-systemd-gpt-auto-gener.patch \
        file://0079-policy-modules-services-ntp-make-nptd_t-MLS-trusted-.patch \
        file://0080-policy-modules-services-avahi-make-avahi_t-MLS-trust.patch \
        file://0081-fc-sysnetwork-update-file-context-for-ifconfig.patch \
        "

S = "${WORKDIR}/refpolicy"

CONFFILES_${PN} += "${sysconfdir}/selinux/config"
FILES_${PN} += " \
	${sysconfdir}/selinux/${POLICY_NAME}/ \
	${datadir}/selinux/${POLICY_NAME}/*.pp \
	${localstatedir}/lib/selinux/${POLICY_NAME}/ \
	"
FILES_${PN}-dev =+ " \
        ${datadir}/selinux/${POLICY_NAME}/include/ \
        ${sysconfdir}/selinux/sepolgen.conf \
"

EXTRANATIVEPATH += "bzip2-native"

DEPENDS += "bzip2-replacement-native checkpolicy-native policycoreutils-native semodule-utils-native m4-native"

RDEPENDS_${PN}-dev =+ " \
        python3-core \
"

PACKAGE_ARCH = "${MACHINE_ARCH}"

inherit python3native

PARALLEL_MAKE = ""

POLICY_NAME ?= "${POLICY_TYPE}"
POLICY_DISTRO ?= "redhat"
POLICY_UBAC ?= "n"
POLICY_UNK_PERMS ?= "allow"
POLICY_DIRECT_INITRC ?= "y"
POLICY_SYSTEMD ?= "${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'y', 'n', d)}"
POLICY_MONOLITHIC ?= "n"
POLICY_CUSTOM_BUILDOPT ?= ""
POLICY_QUIET ?= "y"
POLICY_MLS_SENS ?= "16"
POLICY_MLS_CATS ?= "1024"
POLICY_MCS_CATS ?= "1024"

EXTRA_OEMAKE += "NAME=${POLICY_NAME} \
	TYPE=${POLICY_TYPE} \
	DISTRO=${POLICY_DISTRO} \
	UBAC=${POLICY_UBAC} \
	UNK_PERMS=${POLICY_UNK_PERMS} \
	DIRECT_INITRC=${POLICY_DIRECT_INITRC} \
	SYSTEMD=${POLICY_SYSTEMD} \
	MONOLITHIC=${POLICY_MONOLITHIC} \
	CUSTOM_BUILDOPT=${POLICY_CUSTOM_BUILDOPT} \
	QUIET=${POLICY_QUIET} \
	MLS_SENS=${POLICY_MLS_SENS} \
	MLS_CATS=${POLICY_MLS_CATS} \
	MCS_CATS=${POLICY_MCS_CATS}"

EXTRA_OEMAKE += "tc_usrbindir=${STAGING_BINDIR_NATIVE}"
EXTRA_OEMAKE += "OUTPUT_POLICY=`${STAGING_BINDIR_NATIVE}/checkpolicy -V | cut -d' ' -f1`"
EXTRA_OEMAKE += "CC='${BUILD_CC}' CFLAGS='${BUILD_CFLAGS}' PYTHON='${PYTHON}'"

python __anonymous () {
    import re

    # make sure DEFAULT_ENFORCING is something sane
    if not re.match('^(enforcing|permissive|disabled)$',
                    d.getVar('DEFAULT_ENFORCING'),
                    flags=0):
        d.setVar('DEFAULT_ENFORCING', 'permissive')
}

disable_policy_modules () {
	for module in ${PURGE_POLICY_MODULES} ; do
		sed -i "s/^\(\<${module}\>\) *= *.*$/\1 = off/" ${S}/policy/modules.conf
	done
}

do_compile() {
	if [ -f "${WORKDIR}/modules.conf" ] ; then
		cp -f ${WORKDIR}/modules.conf ${S}/policy/modules.conf
	fi
	oe_runmake conf
	disable_policy_modules
	oe_runmake policy
}

prepare_policy_store () {
	oe_runmake 'DESTDIR=${D}' 'prefix=${D}${prefix}' install
	POL_PRIORITY=100
	POL_SRC=${D}${datadir}/selinux/${POLICY_NAME}
	POL_STORE=${D}${localstatedir}/lib/selinux/${POLICY_NAME}
	POL_ACTIVE_MODS=${POL_STORE}/active/modules/${POL_PRIORITY}

	# Prepare to create policy store
	mkdir -p ${POL_STORE}
	mkdir -p ${POL_ACTIVE_MODS}

	# get hll type from suffix on base policy module
	HLL_TYPE=$(echo ${POL_SRC}/base.* | awk -F . '{if (NF>1) {print $NF}}')
	HLL_BIN=${STAGING_DIR_NATIVE}${prefix}/libexec/selinux/hll/${HLL_TYPE}

	for i in ${POL_SRC}/*.${HLL_TYPE}; do
		MOD_NAME=$(basename $i | sed "s/\.${HLL_TYPE}$//")
		MOD_DIR=${POL_ACTIVE_MODS}/${MOD_NAME}
		mkdir -p ${MOD_DIR}
		echo -n "${HLL_TYPE}" > ${MOD_DIR}/lang_ext
		if ! bzip2 -t $i >/dev/null 2>&1; then
			${HLL_BIN} $i | bzip2 --stdout > ${MOD_DIR}/cil
			bzip2 -f $i && mv -f $i.bz2 $i
		else
			bunzip2 --stdout $i | \
				${HLL_BIN} | \
				bzip2 --stdout > ${MOD_DIR}/cil
		fi
		cp $i ${MOD_DIR}/hll
	done
}

rebuild_policy () {
	cat <<-EOF > ${D}${sysconfdir}/selinux/semanage.conf
module-store = direct
[setfiles]
path = ${STAGING_DIR_NATIVE}${base_sbindir_native}/setfiles
args = -q -c \$@ \$<
[end]
[sefcontext_compile]
path = ${STAGING_DIR_NATIVE}${sbindir_native}/sefcontext_compile
args = \$@
[end]

policy-version = 31
EOF

	# Create policy store and build the policy
	semodule -p ${D} -s ${POLICY_NAME} -n -B
	rm -f ${D}${sysconfdir}/selinux/semanage.conf
	# no need to leave final dir created by semanage laying around
	rm -rf ${D}${localstatedir}/lib/selinux/final
}

install_misc_files () {
	cat ${WORKDIR}/customizable_types >> \
		${D}${sysconfdir}/selinux/${POLICY_NAME}/contexts/customizable_types

	# install setrans.conf for mls/mcs policy
	if [ -f ${WORKDIR}/setrans-${POLICY_TYPE}.conf ]; then
		install -m 0644 ${WORKDIR}/setrans-${POLICY_TYPE}.conf \
			${D}${sysconfdir}/selinux/${POLICY_NAME}/setrans.conf
	fi

	# install policy headers
	oe_runmake 'DESTDIR=${D}' 'prefix=${D}${prefix}' install-headers
}

install_config () {
	echo "\
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=${DEFAULT_ENFORCING}
# SELINUXTYPE= can take one of these values:
#     minimum - Minimum Security protection.
#     standard - Standard Security protection.
#     mls - Multi Level Security protection.
#     targeted - Targeted processes are protected.
#     mcs - Multi Category Security protection.
SELINUXTYPE=${POLICY_NAME}
" > ${WORKDIR}/config
	install -d ${D}/${sysconfdir}/selinux
	install -m 0644 ${WORKDIR}/config ${D}/${sysconfdir}/selinux/
}

do_install () {
	prepare_policy_store
	rebuild_policy
	install_misc_files
	install_config
}

do_install_append(){
	# While building policies on target, Makefile will be searched from SELINUX_DEVEL_PATH
	echo "SELINUX_DEVEL_PATH=${datadir}/selinux/${POLICY_NAME}/include" > ${D}${sysconfdir}/selinux/sepolgen.conf
}

sysroot_stage_all_append () {
	sysroot_stage_dir ${D}${sysconfdir} ${SYSROOT_DESTDIR}${sysconfdir}
}