#

# 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.

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

#

# The default target is 'install'.

#

# Set to y if MLS is enabled in the policy.

MLS=n

FLASKDIR = flask/

PREFIX = /usr

BINDIR = $(PREFIX)/bin

SBINDIR = $(PREFIX)/sbin

LOADPOLICY  = $(SBINDIR)/load_policy

CHECKPOLICY = $(BINDIR)/checkpolicy

GENHOMEDIRCON = $(SBINDIR)/genhomedircon

SETFILES = $(SBINDIR)/setfiles

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

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

POLICYVER := policy.$(VERS)

TOPDIR = $(DESTDIR)/etc/selinux

ifeq ($(MLS),y)

TYPE=mls

else

TYPE=strict

endif

INSTALLDIR = $(TOPDIR)/$(TYPE)

POLICYPATH = $(INSTALLDIR)/policy

SRCPATH = $(INSTALLDIR)/src

USERPATH = $(INSTALLDIR)/users

CONTEXTPATH = $(INSTALLDIR)/contexts

LOADPATH = $(POLICYPATH)/$(POLICYVER)

FCPATH = $(CONTEXTPATH)/files/file_contexts

HOMEDIRPATH = $(CONTEXTPATH)/files/homedir_template

ALL_PROGRAM_MACROS := $(wildcard macros/program/*.te)

ALL_MACROS := $(ALL_PROGRAM_MACROS) $(wildcard macros/*.te)

ALL_TYPES := $(wildcard types/*.te)

ALL_DOMAINS := $(wildcard domains/*.te domains/misc/*.te domains/program/*.te)

ALLTEFILES := attrib.te tmp/program_used_flags.te $(ALL_MACROS) $(ALL_TYPES) $(ALL_DOMAINS) assert.te 

TE_RBAC_FILES := $(ALLTEFILES) rbac

ALL_TUNABLES := $(wildcard tunables/*.tun )

USER_FILES := users 

POLICYFILES = $(addprefix $(FLASKDIR),security_classes initial_sids access_vectors)

ifeq ($(MLS),y)

POLICYFILES += mls

CHECKPOLMLS += -M

endif

DEFCONTEXTFILES = initial_sid_contexts fs_use genfs_contexts net_contexts

POLICYFILES += $(ALL_TUNABLES) $(TE_RBAC_FILES)

POLICYFILES += $(USER_FILES)

POLICYFILES += constraints

POLICYFILES += $(DEFCONTEXTFILES)

CONTEXTFILES = $(DEFCONTEXTFILES)

POLICY_DIRS = domains/program domains/misc

UNUSED_TE_FILES := $(wildcard domains/program/unused/*.te)

FC = file_contexts/file_contexts

HOMEDIR_TEMPLATE = file_contexts/homedir_template

FCFILES=file_contexts/types.fc $(patsubst domains/program/%.te,file_contexts/program/%.fc, $(wildcard domains/program/*.te)) file_contexts/distros.fc $(wildcard file_contexts/misc/*.fc)

CONTEXTFILES += $(FCFILES)

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 appconfig/*_context*) appconfig/media

ROOTFILES = $(addprefix $(APPDIR)/users/,root)

all:  policy

tmp/valid_fc: $(APPFILES) $(ROOTFILES) $(LOADPATH) $(FCPATH) 

	@echo "Validating file_contexts ..."	

	$(SETFILES) -q -c $(LOADPATH) $(FCPATH)

	@touch tmp/valid_fc

install: tmp/valid_fc $(USERPATH)/local.users

$(USERPATH)/system.users: $(ALL_TUNABLES) $(USER_FILES) policy.conf

	@mkdir -p $(USERPATH)

	@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

	m4 $(ALL_TUNABLES) tmp/program_used_flags.te $(USER_FILES) | grep -v "^#" >> tmp/system.users

	install -m 644 tmp/system.users $@

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

	@mkdir -p $(USERPATH)

	install -C -b -m 644 $< $@

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

	mkdir -p $(CONTEXTPATH)/files/

	install -m 644 $< $@

$(APPDIR)/default_contexts: appconfig/default_contexts

	mkdir -p $(APPDIR)

	install -m 644 $< $@

$(APPDIR)/removable_context: appconfig/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: appconfig/default_type

	mkdir -p $(APPDIR)

	install -m 644 $< $@

$(APPDIR)/userhelper_context: appconfig/userhelper_context

	mkdir -p $(APPDIR)

	install -m 644 $< $@

$(APPDIR)/initrc_context: appconfig/initrc_context

	mkdir -p $(APPDIR)

	install -m 644 $< $@

$(APPDIR)/failsafe_context: appconfig/failsafe_context

	mkdir -p $(APPDIR)

	install -m 644 $< $@

$(APPDIR)/dbus_contexts: appconfig/dbus_contexts

	mkdir -p $(APPDIR)

	install -m 644 $< $@

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

	mkdir -p $(APPDIR)/users

	install -m 644 $< $@

$(LOADPATH):  policy.conf $(CHECKPOLICY)

	mkdir -p $(POLICYPATH)

	$(CHECKPOLICY) $(CHECKPOLMLS) -o $@ policy.conf

ifneq ($(MLS),y)

ifneq ($(VERS),18)

	$(CHECKPOLICY) -c 18 -o $(POLICYPATH)/policy.18 policy.conf

endif

endif

# Note: Can't use install, so not sure how to deal with mode, user, and group

#	other than by default.

policy: $(POLICYVER)

$(POLICYVER):  policy.conf $(FC) $(CHECKPOLICY)

	$(CHECKPOLICY) $(CHECKPOLMLS) -o $@ policy.conf

ifneq ($(MLS),y)

ifneq ($(VERS),18)

	$(CHECKPOLICY) -c 18 -o policy.18 policy.conf

endif

endif

	@echo "Validating file_contexts ..."

	$(SETFILES) -q -c $(POLICYVER) $(FC)

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

ifeq ($(VERS), $(KERNVERS))

	$(LOADPOLICY) $(LOADPATH)

else

	$(LOADPOLICY) $(POLICYPATH)/policy.18

endif

	touch tmp/load

load: tmp/load

enableaudit: policy.conf 

	grep -v dontaudit policy.conf > policy.audit

	mv policy.audit policy.conf

policy.conf: $(POLICYFILES) $(POLICY_DIRS)

	mkdir -p tmp

	m4 $(M4PARAM) -Imacros -s $(POLICYFILES) > $@.tmp

	mv $@.tmp $@

install-src: 

	rm -rf $(SRCPATH)/policy.old

	-mv $(SRCPATH)/policy $(SRCPATH)/policy.old

	mkdir -p $(SRCPATH)/policy

	cp -R . $(SRCPATH)/policy

tmp/program_used_flags.te: $(wildcard domains/program/*.te) domains/program

	mkdir -p tmp

	( cd domains/program/ ; for n in *.te ; do echo "define(\`$$n')"; done ) > $@.tmp

	( cd domains/misc/ ; for n in *.te ; do echo "define(\`$$n')"; done ) >> $@.tmp

	mv $@.tmp $@

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

checklabels: $(SETFILES)

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

restorelabels: $(SETFILES)

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

relabel:  $(FC) $(SETFILES)

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

file_contexts/misc:

	mkdir -p file_contexts/misc

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

	@mkdir -p $(CONTEXTPATH)/files

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

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

	@$(GENHOMEDIRCON) -d $(TOPDIR) -t $(TYPE) $(USEPWD)

$(FC): $(ALL_TUNABLES) tmp/program_used_flags.te $(FCFILES) domains/program domains/misc file_contexts/program file_contexts/misc users /etc/passwd

	@echo "Building file_contexts ..."

	@m4 $(M4PARAM) $(ALL_TUNABLES) tmp/program_used_flags.te $(FCFILES) > $@.tmp

	@grep -v -e HOME -e ROLE $@.tmp > $@

	@grep -e HOME -e ROLE $@.tmp  > $(HOMEDIR_TEMPLATE)

	@-rm $@.tmp

# Create a tags-file for the policy:

# we need exuberant ctags; unfortunately it is named differently on different distros, sigh...

pathsearch = $(firstword $(wildcard $(addsuffix /$(1),$(subst :, ,$(PATH))))) # taken from make-docs

CTAGS := $(call pathsearch,ctags-exuberant) # debian naming scheme

ifeq ($(strip $(CTAGS)),)

CTAGS := $(call pathsearch,ctags) # suse naming scheme

endif

tags: $(wildcard *.te types/*.te domains/*.te domains/misc/*.te domains/program/*.te domains/program/unused/*.te macros/*.te macros/program/*.te)

	@($(CTAGS) --version | grep -q Exuberant) || (echo ERROR: Need exuberant-ctags to function!; exit 1)

	@LC_ALL=C $(CTAGS) --langdef=te --langmap=te:..te \

	  --regex-te='/^[ \t]*type[ \t]+(\w+)(,|;)/\1/t,type/' \

	  --regex-te='/^[ \t]*typealias[ \t]+\w+[ \t+]+alias[ \t]+(\w+);/\1/t,type/' \

	  --regex-te='/^[ \t]*attribute[ \t]+(\w+);/\1/a,attribute/' \

	  --regex-te='/^[ \t]*define\(`(\w+)/\1/d,define/' \

	  --regex-te='/^[ \t]*bool[ \t]+(\w+)/\1/b,bool/' $^

clean:

	rm -f policy.conf $(POLICYVER) policy.18

	rm -f tags

	rm -f tmp/*

	rm -f $(FC)

	rm -f flask/*.h

# for the policy regression tester

	find "domains/program/" -maxdepth 1 -type l -exec rm {} \; ; \

# Policy regression tester.

# Written by Colin Walters <walters@debian.org>

cur_te = $(filter-out %/,$(subst /,/ ,$@))

TESTED_TE_FILES := $(notdir $(UNUSED_TE_FILES))

define compute_depends

  export TE_DEPENDS_$(1) := $(shell egrep '^#[[:space:]]*Depends: ' domains/program/unused/$(1) | head -1 | sed -e 's/^.*Depends: //')

endef

ifeq ($(TE_DEPENDS_DEFINED),)

ifeq ($(MAKECMDGOALS),check-all)

  GENRULES := $(TESTED_TE_FILES)

  export TE_DEPENDS_DEFINED := yes

else

  # Handle the case where checkunused/blah.te is run directly.

  ifneq ($(findstring checkunused/,$(MAKECMDGOALS)),)

    GENRULES := $(TESTED_TE_FILES)

    export TE_DEPENDS_DEFINED := yes

  endif

endif

endif

# Test for a new enough version of GNU Make.

$(eval have_eval := yes)

ifneq ($(GENRULES),)

  ifeq ($(have_eval),)

$(error Need GNU Make 3.80 or better!)

Need GNU Make 3.80 or better

  endif

endif

$(foreach f,$(GENRULES),$(eval $(call compute_depends,$(f))))

PHONIES :=

define compute_presymlinks

PHONIES += presymlink/$(1)

presymlink/$(1):: $(patsubst %,presymlink/%,$(TE_DEPENDS_$(1)))

	@if ! test -L domains/program/$(1); then \

	  cd domains/program && ln -s unused/$(1) .; \

	fi

endef

# Compute dependencies.

$(foreach f,$(TESTED_TE_FILES),$(eval $(call compute_presymlinks,$(f))))

PHONIES += $(patsubst %,checkunused/%,$(TESTED_TE_FILES))

$(patsubst %,checkunused/%,$(TESTED_TE_FILES)) :: checkunused/% : 

	@$(MAKE) -s clean

$(patsubst %,checkunused/%,$(TESTED_TE_FILES)) :: checkunused/% : presymlink/%

	@if test -n "$(TE_DEPENDS_$(cur_te))"; then \

	  echo "Dependencies for $(cur_te): $(TE_DEPENDS_$(cur_te))"; \

	fi

	@echo "Testing $(cur_te)...";

	@if ! make -s policy 1>/dev/null; then \

	  echo "Testing $(cur_te)...FAILED"; \

	  exit 1; \

	fi;

	@echo "Testing $(cur_te)...success."; \

check-all:

	@for goal in  $(patsubst %,checkunused/%,$(TESTED_TE_FILES)); do \

	  $(MAKE) --no-print-directory $$goal; \

	done

.PHONY: clean $(PHONIES)

mlsconvert: 

	@for file in $(CONTEXTFILES); do \

		echo "Converting $$file"; \

		sed -e 's/_t\b/_t:s0/g' $$file > $$file.new && \

		mv $$file.new $$file; \

	done

	@for file in $(USER_FILES); do \

		echo "Converting $$file"; \

		sed -e 's/;/ level s0 range s0 - s9 : c0 . c127;/' $$file > $$file.new && \

		mv $$file.new $$file; \

	done

	@sed -e '/sid kernel/s/s0/s0 - s9 : c0 . c127/' initial_sid_contexts > initial_sid_contexts.new && mv initial_sid_contexts.new initial_sid_contexts

	@echo "Done"