#

# Makefile for the security policy.

#

# Targets:

# 

# install       - compile and install the policy configuration, and context files.

# load          - compile, install, and load the policy configuration.

# reload        - compile, install, and load/reload the policy configuration.

# relabel       - relabel filesystems based on the file contexts configuration.

# checklabels   - check filesystems against the file context configuration

# restorelabels - check filesystems against the file context configuration

#                 and restore the label of files with incorrect labels

# policy        - compile the policy configuration locally for testing/development.

# xml           - create a XML file from in-policy documentation

#

# The default target is 'policy'.

#

########################################

#

# Configurable portions of the Makefile

#

# Build compatibility policies 

POLICYCOMPAT = 18

# Build MLS policies

MLS=n

# set distribution

override M4PARAM += -D distro_redhat

# Uncomment this to disable command echoing

#QUIET:=@

# Policy type (strict, targeted, etc)

TYPE := strict

########################################

#

# Invariant portions of the Makefile

#

# executable paths

PREFIX := /usr

BINDIR := $(PREFIX)/bin

SBINDIR := $(PREFIX)/sbin

CHECKPOLICY := $(BINDIR)/checkpolicy

LOADPOLICY := $(SBINDIR)/load_policy

SETFILES := $(SBINDIR)/setfiles

XMLLINT := $(BINDIR)/xmllint

XMLDTD := policy.dtd

# enable MLS if requested.

ifeq ($(MLS),y)

	override M4PARAM += -D enable_mls

	CHECKPOLICY += -M

endif

ifneq ($(POLICYCOMPAT),)

	CHECKPOLICY += -c $(POLICYCOMPAT)

endif

# determine the policy version and current kernel version if possible

PV := $(shell $(CHECKPOLICY) -V |cut -f 1 -d ' ')

KV := $(shell cat /selinux/policyvers)

# dont print version warnings if we are unable to determine

# the currently running kernel's policy version

ifeq ($(KV),)

	KV := $(PV)

endif

FC := file_contexts

POLVER := policy.$(PV)

# install paths

TOPDIR = $(DESTDIR)/etc/selinux

INSTALLDIR = $(TOPDIR)/$(TYPE)

POLICYPATH = $(INSTALLDIR)/policy

SRCPATH = $(INSTALLDIR)/src

USERPATH = $(INSTALLDIR)/users

CONTEXTPATH = $(INSTALLDIR)/contexts

LOADPATH = $(POLICYPATH)/$(POLVER)

FCPATH = $(CONTEXTPATH)/files/file_contexts

HOMEDIRPATH = $(CONTEXTPATH)/files/homedir_template

BASE_MODULE = kernel

FLASKDIR = flask

APPCONF = appconfig

APPDIR := $(CONTEXTPATH)

APPFILES := $(addprefix $(APPDIR)/,default_contexts default_type initrc_context failsafe_context userhelper_context removable_context dbus_contexts customizable_types) $(CONTEXTPATH)/files/media

CONTEXTFILES += $(wildcard $(APPCONF)/*_context*) $(APPCONF)/media

USER_FILES := users 

DETECTED_DIRS := $(shell find $(wildcard *) -maxdepth 0 -type d)

ALL_LAYERS := $(filter-out tmp CVS $(APPCONF) $(FLASKDIR),$(DETECTED_DIRS))

PRE_TE_FILES := $(addprefix $(FLASKDIR)/,security_classes initial_sids access_vectors) mls

ALL_INTERFACES := $(foreach dir,$(ALL_LAYERS),$(wildcard $(dir)/*.if))

ALL_TE_FILES := $(foreach dir,$(ALL_LAYERS),$(wildcard $(dir)/*.te))

POST_TE_FILES := users constraints initial_sid_contexts fs_use

ALL_FC_FILES := $(foreach dir,$(ALL_LAYERS),$(wildcard $(dir)/*.fc))

POLICY_SECTIONS := tmp/pre_te_files.conf tmp/generated_definitions.conf tmp/all_interfaces.conf tmp/all_attrs_types.conf tmp/only_te_rules.conf tmp/all_post.conf

########################################

#

# default action: build policy locally

#

default: policy

policy: $(POLVER)

install: $(LOADPATH) $(FCPATH) $(USERPATH)/local.users

load: tmp/load

########################################

#

# Build a binary policy locally

#

$(POLVER): policy.conf

	@echo "Compiling $(POLVER)"

ifneq ($(PV),$(KV))

	@echo

	@echo "WARNING: Policy version mismatch!  Is your POLICYCOMPAT set correctly?"

	@echo

endif

	$(QUIET) $(CHECKPOLICY) $^ -o $@

########################################

#

# Install a binary policy

#

$(LOADPATH): policy.conf

	@mkdir -p $(POLICYPATH)

	@echo "Compiling and installing $(LOADPATH)"

ifneq ($(PV),$(KV))

	@echo

	@echo "WARNING: Policy version mismatch!  Is your POLICYCOMPAT set correctly?"

	@echo

endif

	$(QUIET) $(CHECKPOLICY) $^ -o $@

########################################

#

# Load the binary policy

#

reload tmp/load: $(LOADPATH) $(FCPATH)

	@echo "Loading $(LOADPATH)"

	$(QUIET) $(LOADPOLICY) -q $(LOADPATH)

	@touch tmp/load

########################################

#

# Construct a monolithic policy.conf

#

policy.conf: $(POLICY_SECTIONS)

	@echo "Creating policy.conf"

# checkpolicy can use the #line directives provided by -s for error reporting:

	$(QUIET) m4 $(M4PARAM) -D monolithic_policy -s $^ > tmp/$@.tmp

	$(QUIET) sed -e /^portcon/d -e /^nodecon/d -e /^netifcon/d < tmp/$@.tmp > $@

# the ordering of these ocontexts matters:

	$(QUIET) grep ^portcon tmp/$@.tmp >> $@ || true

	$(QUIET) grep ^netifcon tmp/$@.tmp >> $@ || true

	$(QUIET) grep ^nodecon tmp/$@.tmp >> $@ || true

tmp/pre_te_files.conf: $(PRE_TE_FILES)

	@test -d tmp || mkdir -p tmp

	$(QUIET) cat $^ > $@

tmp/generated_definitions.conf: $(ALL_LAYERS) $(ALL_TE_FILES) $(BASE_MODULE)/corenetwork.if $(BASE_MODULE)/corenetwork.te

	@test -d tmp || mkdir -p tmp

	$(QUIET) echo "define(\`per_userdomain_templates',\`" > $@

	$(QUIET) for i in $(patsubst %.te,%,$(notdir $(ALL_TE_FILES))); do \

		echo "ifdef(\`""$$i""_per_userdomain_template',\`""$$i""_per_userdomain_template("'$$1'")')" \

			>> $@ ;\

	done

	$(QUIET) echo "')" >> $@

	$(QUIET) for i in $(notdir $(ALL_TE_FILES)); do \

		echo "define(\`$$i')" >> $@ ;\

	done

	$(QUIET) egrep "^network_(interface|node|port)\(.*\)" $(BASE_MODULE)/corenetwork.te \

		| m4 $(M4PARAM) -D monolithic_policy -D interface_pass $(BASE_MODULE)/global.if $(BASE_MODULE)/corenetwork.if - \

		| sed -e 's/dollarsone/\$$1/g' -e 's/dollarszero/\$$0/g' >> $@

# this is so the xml works:

	$(QUIET) echo "## </module>" >> $@

tmp/all_interfaces.conf: $(ALL_INTERFACES)

	@test -d tmp || mkdir -p tmp

	$(QUIET) cat $^ > $@

tmp/all_te_files.conf: $(ALL_TE_FILES)

	@test -d tmp || mkdir -p tmp

	$(QUIET) cat $^ > $@

tmp/post_te_files.conf: $(POST_TE_FILES)

	@test -d tmp || mkdir -p tmp

	$(QUIET) cat $^ > $@

# extract attributes and put them first. extract post te stuff

# like genfscon and put last.  portcon, nodecon, and netifcon

# is delayed since they are generated by m4

tmp/all_attrs_types.conf tmp/only_te_rules.conf tmp/all_post.conf: tmp/all_te_files.conf tmp/post_te_files.conf

	$(QUIET) grep ^attribute tmp/all_te_files.conf > tmp/all_attrs_types.conf || true

	$(QUIET) grep '^type ' tmp/all_te_files.conf >> tmp/all_attrs_types.conf

	$(QUIET) cat tmp/post_te_files.conf > tmp/all_post.conf

	$(QUIET) grep ^genfscon tmp/all_te_files.conf >> tmp/all_post.conf || true

	$(QUIET) sed -e /^attribute/d -e '/^type /d' -e /^genfscon/d < tmp/all_te_files.conf > tmp/only_te_rules.conf

########################################

#

# Remove the dontaudit rules from the policy.conf

#

enableaudit: policy.conf

	@test -d tmp || mkdir -p tmp

	@echo "Removing dontaudit rules from policy.conf"

	$(QUIET) grep -v dontaudit policy.conf > tmp/policy.audit

	$(QUIET) mv tmp/policy.audit policy.conf

########################################

#

# Construct file_contexts

#

$(FC): kernel/global.if $(ALL_FC_FILES)

	@test -d tmp || mkdir -p tmp

	$(QUIET) m4 $(M4PARAM) $^ > $@

########################################

#

# Install file_contexts

#

$(FCPATH): $(FC) $(USERPATH)/system.users 

	@mkdir -p $(CONTEXTPATH)/files

	$(QUIET) install -m 644 $(FC) $(FCPATH)

#	$(QUIET) install -m 644 $(HOMEDIR_TEMPLATE) $(HOMEDIRPATH)

#	$(QUIET) $(GENHOMEDIRCON) -d $(TOPDIR) -t $(TYPE) $(USEPWD)

########################################

#

# Filesystem labeling

#

FILESYSTEMS := `mount | grep -v "context=" | egrep -v '\((|.*,)bind(,.*|)\)' | awk '/(ext[23]| xfs| jfs).*rw/{print $$3}';`

checklabels: $(FC) $(SETFILES)

	@if test -z "$(FILESYSTEMS)"; then \

		echo "No filesystems with extended attributes found!" ;\

		false ;\

	fi

	$(QUIET) $(SETFILES) -v -n $(FC) $(FILESYSTEMS)

restorelabels: $(FC) $(SETFILES)

	@if test -z "$(FILESYSTEMS)"; then \

		echo "No filesystems with extended attributes found!" ;\

		false ;\

	fi

	$(QUIET) $(SETFILES) -v $(FC) $(FILESYSTEMS)

relabel:  $(FC) $(SETFILES)

	@if test -z "$(FILESYSTEMS)"; then \

		echo "No filesystems with extended attributes found!" ;\

		false ;\

	fi

	$(QUIET) $(SETFILES) $(FC) $(FILESYSTEMS)

########################################

#

# Documentation generation

#

xml: policy.xml

policy.xml: $(ALL_INTERFACES) tmp/generated_definitions.conf

	@echo "Creating $@"

	$(QUIET) echo '' > $@

	$(QUIET) echo '' >> $@

	$(QUIET) echo "<policy>" >> $@

# process this through m4 to eliminate the generated definitions.

# currently these are only in corenetwork.if

	$(QUIET) m4 $^ | egrep -h "^##[[:blank:]]" | sed -e 's/^##[[:blank:]]//g' >> $@

	$(QUIET) echo "</policy>" >> $@

	$(QUIET) if test -x $(XMLLINT) && test -f $(XMLDTD); then \

		$(XMLLINT) --noout --dtdvalid $(XMLDTD) $@ ;\

	fi

########################################

#

# Runtime binary policy patching of users

#

$(USERPATH)/system.users: $(USER_FILES) tmp/generated_definitions.conf

	@mkdir -p $(USERPATH)

	@echo "Installing system.users"

	@echo "# " > tmp/system.users

	@echo "# Do not edit this file. " >> tmp/system.users

	@echo "# This file is replaced on reinstalls of this policy." >> tmp/system.users

	@echo "# Please edit local.users to make local changes." >> tmp/system.users

	@echo "#" >> tmp/system.users

	$(QUIET) m4 $(M4PARAM) tmp/generated_definitions.conf $(USER_FILES) | \

		egrep -v "^[[:space:]]*($$|#)" >> tmp/system.users

	$(QUIET) install -m 644 tmp/system.users $@

$(USERPATH)/local.users: local.users

	@mkdir -p $(USERPATH)

	@echo "Installing local.users"

	$(QUIET) install -C -b -m 644 $< $@

########################################

#

# Appconfig files

#

install-appconfig: $(APPFILES)

$(CONTEXTPATH)/files/media: $(APPCONF)/media

	mkdir -p $(CONTEXTPATH)/files/

	install -m 644 $< $@

$(APPDIR)/default_contexts: $(APPCONF)/default_contexts

	mkdir -p $(APPDIR)

	install -m 644 $< $@

$(APPDIR)/removable_context: $(APPCONF)/removable_context

	mkdir -p $(APPDIR)

	install -m 644 $< $@

$(APPDIR)/customizable_types: policy.conf

	mkdir -p $(APPDIR)

	@grep "^type .*customizable" $< | cut -d',' -f1 | cut -d' ' -f2 > tmp/customizable_types

	install -m 644 tmp/customizable_types $@ 

$(APPDIR)/default_type: $(APPCONF)/default_type

	mkdir -p $(APPDIR)

	install -m 644 $< $@

$(APPDIR)/userhelper_context: $(APPCONF)/userhelper_context

	mkdir -p $(APPDIR)

	install -m 644 $< $@

$(APPDIR)/initrc_context: $(APPCONF)/initrc_context

	mkdir -p $(APPDIR)

	install -m 644 $< $@

$(APPDIR)/failsafe_context: $(APPCONF)/failsafe_context

	mkdir -p $(APPDIR)

	install -m 644 $< $@

$(APPDIR)/dbus_contexts: $(APPCONF)/dbus_contexts

	mkdir -p $(APPDIR)

	install -m 644 $< $@

$(APPDIR)/users/root: $(APPCONF)/root_default_contexts

	mkdir -p $(APPDIR)/users

	install -m 644 $< $@

clean:

	rm -fR tmp

	rm -f policy.xml

	rm -f policy.conf

	rm -f policy.$(PV)

	rm -f $(FC)

.PHONY: default policy install reload enableaudit checklabels restorelabels relabel xml clean