Select Git revision
file_contexts
Android.mk 6.31 KiB
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
# SELinux policy version.
# Must be <= /selinux/policyvers reported by the Android kernel.
# Must be within the compatibility range reported by checkpolicy -V.
POLICYVERS ?= 24
MLS_SENS=1
MLS_CATS=1024
MAC_PERMISSION_FILE=mac_permissions.xml
# Detect if someone tries to union the mac permissions policy file
$(if $(filter $(MAC_PERMISSION_FILE), $(BOARD_SEPOLICY_UNION)), \
$(error Cannot specify $(MAC_PERMISSION_FILE) in BOARD_SEPOLICY_UNION) \
)
# Quick edge case error detection for BOARD_SEPOLICY_REPLACE.
# Builds the singular path for each replace file.
sepolicy_replace_paths :=
$(foreach pf, $(BOARD_SEPOLICY_REPLACE), \
$(if $(filter $(pf), $(BOARD_SEPOLICY_UNION)), \
$(error Ambiguous request for sepolicy $(pf). Appears in both \
BOARD_SEPOLICY_REPLACE and BOARD_SEPOLICY_UNION), \
) \
$(eval _paths := $(filter-out $(BOARD_SEPOLICY_IGNORE), \
$(wildcard $(addsuffix /$(pf), $(BOARD_SEPOLICY_DIRS))))) \
$(eval _occurrences := $(words $(_paths))) \
$(if $(filter 0,$(_occurrences)), \
$(error No sepolicy file found for $(pf) in $(BOARD_SEPOLICY_DIRS)), \
) \
$(if $(filter 1, $(_occurrences)), \
$(eval sepolicy_replace_paths += $(_paths)), \
$(error Multiple occurrences of replace file $(pf) in $(_paths)) \
) \
$(if $(filter 0, $(words $(wildcard $(addsuffix /$(pf), $(LOCAL_PATH))))), \
$(error Specified the sepolicy file $(pf) in BOARD_SEPOLICY_REPLACE, \
but none found in $(LOCAL_PATH)), \
) \
)
# Builds paths for all requested policy files w.r.t
# both BOARD_SEPOLICY_REPLACE and BOARD_SEPOLICY_UNION
# product variables.
# $(1): the set of policy name paths to build
build_policy = $(foreach type, $(1), \
$(filter-out $(BOARD_SEPOLICY_IGNORE), \
$(foreach expanded_type, $(notdir $(wildcard $(addsuffix /$(type), $(LOCAL_PATH)))), \
$(if $(filter $(expanded_type), $(BOARD_SEPOLICY_REPLACE)), \
$(wildcard $(addsuffix $(expanded_type), $(sort $(dir $(sepolicy_replace_paths))))), \
$(LOCAL_PATH)/$(expanded_type) \
) \
) \
$(foreach union_policy, $(wildcard $(addsuffix /$(type), $(BOARD_SEPOLICY_DIRS))), \
$(if $(filter $(notdir $(union_policy)), $(BOARD_SEPOLICY_UNION)), \
$(union_policy), \
) \
) \
) \
)
##################################
include $(CLEAR_VARS)
LOCAL_MODULE := sepolicy
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)