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selinux-refpolicy/Rules.modular
Christian Göttsche 82eca136e6 Rules.modular: use temporary file to not ignore error 
Save the result of the m4 command into a temporary file and split the
commands, to avoid ignoring failures of the first command.

Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
2024-02-22 17:41:37 +01:00

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########################################
#
# Rules and Targets for building modular policies
#
all_modules := $(base_mods) $(mod_mods) $(off_mods)
all_interfaces := $(all_modules:.te=.if)
enabled_mod_fc := $(addprefix $(tmpdir)/,$(notdir $(base_mods:.te=.mod.fc) $(mod_mods:.te=.mod.fc)))
base_pkg := $(builddir)base.pp
base_fc := $(builddir)base.fc
base_conf := $(builddir)base.conf
base_mod := $(tmpdir)/base.mod
users_extra := $(tmpdir)/users_extra
base_sections := $(tmpdir)/pre_te_files.conf $(tmpdir)/all_attrs_types.conf $(tmpdir)/global_bools.conf $(tmpdir)/only_te_rules.conf $(tmpdir)/all_post.conf
base_pre_te_files := $(secclass) $(isids) $(avs) $(m4support) $(ctx_defaults) $(poldir)/mls $(poldir)/mcs $(policycaps)
base_te_files := $(base_mods)
base_post_te_files := $(user_files) $(poldir)/constraints
base_fc_files := $(base_mods:.te=.fc)
mod_pkgs := $(addprefix $(builddir),$(notdir $(mod_mods:.te=.pp)))
# policy packages to install
instpkg := $(addprefix $(modpkgdir)/,$(notdir $(base_pkg)) $(mod_pkgs))
# search layer dirs for source files
vpath %.te $(all_layers)
vpath %.if $(all_layers)
vpath %.fc $(all_layers)
.SECONDARY: $(enabled_mod_fc:.mod.fc=.mod) $(enabled_mod_fc)
########################################
#
# default action: create all module packages
#
default: policy
all policy: base modules
base: $(base_pkg)
modules: $(mod_pkgs)
install: $(instpkg) $(appfiles)
########################################
#
# Load all configured modules
#
load: $(instpkg) $(appfiles)
# make sure two directories exist since they are not
# created by semanage
@echo "Loading configured modules."
@$(INSTALL) -d -m 0755 $(policypath) $(dir $(fcpath))
$(verbose) $(SEMODULE) -s $(NAME) -i $(modpkgdir)/$(notdir $(base_pkg)) $(foreach mod,$(mod_pkgs),-i $(modpkgdir)/$(mod))
########################################
#
# Load all configured modules and remove foreign ones
#
pure-load: $(instpkg) $(appfiles)
# make sure two directories exist since they are not
# created by semanage
@echo "Loading configured modules."
@$(INSTALL) -d -m 0755 $(policypath) $(dir $(fcpath))
$(verbose) $(SEMODULE) -s $(NAME) -i $(modpkgdir)/$(notdir $(base_pkg)) $(foreach mod,$(mod_pkgs),-i $(modpkgdir)/$(mod)) $(foreach omod,$(filter-out base $(notdir $(mod_mods:.te=)),$(shell $(SEMODULE) -l)),-r $(omod))
########################################
#
# Install policy packages
#
$(modpkgdir)/%.pp: $(builddir)%.pp
@echo "Installing $(NAME) $(@F) policy package."
@$(INSTALL) -d -m 0755 $(@D)
$(verbose) $(INSTALL) -m 0644 $^ $(modpkgdir)
########################################
#
# Build module packages
#
$(tmpdir)/%.mod: $(m4support) $(tmpdir)/generated_definitions.conf $(tmpdir)/all_interfaces.conf %.te $(m4terminate)
@echo "Compiling $(NAME) $(@F) module"
@test -d $(tmpdir) || mkdir -p $(tmpdir)
$(verbose) $(M4) $(M4PARAM) -s $^ > $(@:.mod=.tmp)
$(verbose) $(CHECKMODULE) -m $(@:.mod=.tmp) -o $@
$(tmpdir)/%.mod.fc: $(m4support) %.fc
@test -d $(tmpdir) || mkdir -p $(tmpdir)
$(verbose) $(M4) $(M4PARAM) $(m4support) $^ > $@
$(builddir)%.pp: $(tmpdir)/%.mod $(tmpdir)/%.mod.fc
@echo "Creating $(NAME) $(@F) policy package"
@test -d $(builddir) || mkdir -p $(builddir)
$(verbose) $(SEMOD_PKG) -o $@ -m $< -f $<.fc
$(tmpdir)/all_mods.fc: $(enabled_mod_fc)
$(verbose) cat $^ > $@
########################################
#
# Create a base module package
#
$(base_pkg): $(base_mod) $(base_fc) $(users_extra) $(tmpdir)/seusers
@echo "Creating $(NAME) base module package"
@test -d $(builddir) || mkdir -p $(builddir)
$(verbose) $(SEMOD_PKG) -o $@ -m $(base_mod) -f $(base_fc) -u $(users_extra) -s $(tmpdir)/seusers
$(base_mod): $(base_conf)
@echo "Compiling $(NAME) base module"
$(verbose) $(CHECKMODULE) -U $(UNK_PERMS) $^ -o $@
$(tmpdir)/seusers: $(seusers)
@mkdir -p $(tmpdir)
$(verbose) $(M4) $(M4PARAM) $(m4support) $^ | $(GREP) '^[a-z_]' > $@
$(users_extra): $(m4support) $(user_files)
@test -d $(tmpdir) || mkdir -p $(tmpdir)
$(verbose) $(M4) $(M4PARAM) -D users_extra $^ > $(tmpdir)/$(@F).tmp
$(verbose) $(SED) -r -n -e 's/^[[:blank:]]*//g' -e '/^user/p' $(tmpdir)/$(@F).tmp > $@
########################################
#
# Construct a base.conf
#
$(base_conf): $(base_sections)
@echo "Creating $(NAME) base module $(@F)"
@test -d $(@D) || mkdir -p $(@D)
$(verbose) cat $^ > $@
$(tmpdir)/pre_te_files.conf: M4PARAM += -D self_contained_policy
$(tmpdir)/pre_te_files.conf: $(base_pre_te_files)
@test -d $(tmpdir) || mkdir -p $(tmpdir)
$(verbose) $(M4) $(M4PARAM) $^ > $@
$(tmpdir)/generated_definitions.conf:
@test -d $(tmpdir) || mkdir -p $(tmpdir)
# define all available object classes
@cat $(m4divert) > $@
$(verbose) $(genperm) $(avs) $(secclass) >> $@
$(verbose) $(call create-base-per-role-tmpl,$(patsubst %.te,%,$(base_mods)),$@)
$(verbose) test -f $(booleans) && $(setbools) $(booleans) >> $@ || true
@cat $(m4undivert) >> $@
$(tmpdir)/global_bools.conf: M4PARAM += -D self_contained_policy
$(tmpdir)/global_bools.conf: $(m4support) $(tmpdir)/generated_definitions.conf $(globalbool) $(globaltun)
$(verbose) $(M4) $(M4PARAM) $^ > $@
$(tmpdir)/all_interfaces.conf: $(m4support) $(all_interfaces) $(m4iferror)
@test -d $(tmpdir) || mkdir -p $(tmpdir)
@cat $(m4divert) > $@
$(verbose) $(M4) $^ > $(tmpdir)/$(@F).tmp
$(verbose) $(SED) -e s/dollarsstar/\$$\*/g $(tmpdir)/$(@F).tmp >> $@
@cat $(m4undivert) >> $@
$(tmpdir)/all_te_files.conf: M4PARAM += -D self_contained_policy
$(tmpdir)/all_te_files.conf: $(m4support) $(tmpdir)/generated_definitions.conf $(tmpdir)/all_interfaces.conf $(base_te_files) $(m4terminate)
ifeq "$(strip $(base_te_files))" ""
$(error No enabled modules! $(notdir $(mod_conf)) may need to be generated by using "make conf")
endif
@test -d $(tmpdir) || mkdir -p $(tmpdir)
$(verbose) $(M4) $(M4PARAM) -s $^ > $@
$(tmpdir)/post_te_files.conf: M4PARAM += -D self_contained_policy
$(tmpdir)/post_te_files.conf: $(m4support) $(tmpdir)/generated_definitions.conf $(base_post_te_files) $(tmpdir)/all_te_files.conf
@test -d $(tmpdir) || mkdir -p $(tmpdir)
$(verbose) $(GREP) '^[[:blank:]]*user ' $(tmpdir)/all_te_files.conf > $@ || true
$(verbose) $(M4) $(M4PARAM) $(m4support) $(tmpdir)/generated_definitions.conf $(base_post_te_files) >> $@
# extract attributes and put them first. extract post te stuff
# like genfscon and put last.
$(tmpdir)/all_attrs_types.conf: $(tmpdir)/all_te_files.conf
$(verbose) $(get_type_attr_decl) $^ | $(SORT) > $@
$(tmpdir)/all_post.conf: $(tmpdir)/all_te_files.conf $(tmpdir)/post_te_files.conf
$(verbose) cat $(tmpdir)/post_te_files.conf > $@
# these have to run individually because order matters:
$(verbose) $(GREP) '^[[:blank:]]*sid ' $(tmpdir)/all_te_files.conf >> $@ || true
$(verbose) $(GREP) '^[[:blank:]]*fs_use_(xattr|task|trans)' $(tmpdir)/all_te_files.conf >> $@ || true
$(verbose) $(GREP) '^[[:blank:]]*genfscon' $(tmpdir)/all_te_files.conf >> $@ || true
$(verbose) $(GREP) '^[[:blank:]]*portcon' $(tmpdir)/all_te_files.conf >> $@ || true
$(verbose) $(GREP) '^[[:blank:]]*netifcon' $(tmpdir)/all_te_files.conf >> $@ || true
$(verbose) $(GREP) '^[[:blank:]]*nodecon' $(tmpdir)/all_te_files.conf >> $@ || true
$(verbose) $(GREP) '^[[:blank:]]*ibpkeycon' $(tmpdir)/all_te_files.conf >> $@ || true
$(verbose) $(GREP) '^[[:blank:]]*ibendportcon' $(tmpdir)/all_te_files.conf >> $@ || true
$(tmpdir)/only_te_rules.conf: $(tmpdir)/all_te_files.conf
$(verbose) $(comment_move_decl) $^ > $@
########################################
#
# Construct a base.fc
#
$(base_fc): $(tmpdir)/$(notdir $(base_fc)).tmp
$(verbose) $(fcsort) $< $@
$(tmpdir)/$(notdir $(base_fc)).tmp: $(m4support) $(tmpdir)/generated_definitions.conf $(base_fc_files)
ifeq ($(base_fc_files),)
$(error No enabled modules! $(notdir $(mod_conf)) may need to be generated by using "make conf")
endif
@echo "Creating $(NAME) base module file contexts."
@test -d $(tmpdir) || mkdir -p $(tmpdir)
$(verbose) $(M4) $(M4PARAM) $^ > $@
########################################
#
# Appconfig files
#
$(appdir)/customizable_types: $(base_conf)
$(verbose) $(GREP) '^[[:blank:]]*type .*customizable' $< | cut -d';' -f1 | cut -d',' -f1 | cut -d' ' -f2 | $(SORT) -u > $(tmpdir)/customizable_types
@$(INSTALL) -d -m 0755 $(@D)
$(verbose) $(INSTALL) -m 0644 $(tmpdir)/customizable_types $@
########################################
#
# Validate linking and expanding of modules
#
validate: $(base_pkg) $(mod_pkgs) $(tmpdir)/all_mods.fc
@echo "Validating policy linking."
$(verbose) $(SEMOD_LNK) -o $(tmpdir)/test.lnk $(base_pkg) $(mod_pkgs)
$(verbose) $(SEMOD_EXP) $(tmpdir)/test.lnk $(tmpdir)/policy.bin
@echo "Validating policy file contexts."
$(verbose) $(SETFILES) -q -c $(tmpdir)/policy.bin $(tmpdir)/all_mods.fc
@echo "Success."
########################################
#
# Clean the sources
#
clean:
$(verbose) rm -f $(base_conf)
$(verbose) rm -f $(base_fc)
$(verbose) rm -f $(builddir)*.pp
$(verbose) rm -f $(net_contexts) $(net_contexts_nft)
$(verbose) rm -fR $(tmpdir)
.PHONY: default all policy base modules install load pure-load clean validate
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