PWN-Hunter/android_system_sepolicy
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property_context: split into platform and non-platform components.

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Bug: 33746484
Test: Successfully boot with original service and property contexts.
      Successfully boot with split serivce and property contexts.

Change-Id: I87f95292b5860283efb2081b2223e607a52fed04
Signed-off-by: Sandeep Patil <sspatil@google.com>
This commit is contained in:
Sandeep Patil 2016-12-27 16:08:44 -08:00 committed by Nick Kralevich
parent e8acd7695b
commit a86316e852
4 changed files with 42 additions and 26 deletions
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59
Android.mk
View File

@ -765,56 +765,64 @@ $(LOCAL_BUILT_MODULE): $(addprefix $(PLAT_PRIVATE_POLICY)/, seapp_contexts)
##################################
include $(CLEAR_VARS)
LOCAL_MODULE := property_contexts
LOCAL_MODULE := plat_property_contexts
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := optional
# TODO: Change module path to TARGET_SYSTEM_OUT after b/27805372
LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
include $(BUILD_SYSTEM)/base_rules.mk
all_pc_files := $(call build_policy, property_contexts, $(PLAT_PRIVATE_POLICY) $(BOARD_SEPOLICY_DIRS))
all_pcfiles_with_nl := $(call add_nl, $(all_pc_files), $(built_nl))
plat_pcfiles := $(call build_policy, property_contexts, $(PLAT_PRIVATE_POLICY))
property_contexts.tmp := $(intermediates)/property_contexts.tmp
$(property_contexts.tmp): PRIVATE_PC_FILES := $(all_pcfiles_with_nl)
$(property_contexts.tmp): PRIVATE_ADDITIONAL_M4DEFS := $(LOCAL_ADDITIONAL_M4DEFS)
$(property_contexts.tmp): $(all_pcfiles_with_nl)
plat_property_contexts.tmp := $(intermediates)/plat_property_contexts.tmp
$(plat_property_contexts.tmp): PRIVATE_PC_FILES := $(plat_pcfiles)
$(plat_property_contexts.tmp): PRIVATE_ADDITIONAL_M4DEFS := $(LOCAL_ADDITIONAL_M4DEFS)
$(plat_property_contexts.tmp): $(plat_pcfiles)
@mkdir -p $(dir $@)
$(hide) m4 -s $(PRIVATE_ADDITIONAL_M4DEFS) $(PRIVATE_PC_FILES) > $@
$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_sepolicy)
$(LOCAL_BUILT_MODULE): $(property_contexts.tmp) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc
$(LOCAL_BUILT_MODULE): $(plat_property_contexts.tmp) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc
@mkdir -p $(dir $@)
$(hide) sed -e 's/#.*$$//' -e '/^$$/d' $< > $@
$(hide) sed -e 's/#.*$$//' -e '/^$$/d' $< | sort -u -o $@
$(hide) $(HOST_OUT_EXECUTABLES)/checkfc -p $(PRIVATE_SEPOLICY) $@
built_pc := $(LOCAL_BUILT_MODULE)
all_pc_files :=
all_pcfiles_with_nl :=
property_contexts.tmp :=
built_plat_pc := $(LOCAL_BUILT_MODULE)
plat_pcfiles :=
plat_property_contexts.tmp :=
##################################
include $(CLEAR_VARS)
LOCAL_MODULE := general_property_contexts
LOCAL_MODULE := nonplat_property_contexts
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := tests
LOCAL_MODULE_TAGS := optional
# TODO: Change module path to TARGET_SYSTEM_OUT after b/27805372
LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
include $(BUILD_SYSTEM)/base_rules.mk
general_property_contexts.tmp := $(intermediates)/general_property_contexts.tmp
$(general_property_contexts.tmp): $(addprefix $(PLAT_PRIVATE_POLICY)/, property_contexts)
@mkdir -p $(dir $@)
$(hide) m4 -s $< > $@
nonplat_pcfiles := $(call build_policy, property_contexts, $(BOARD_SEPOLICY_DIRS) $(REQD_MASK_POLICY))
$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_general_sepolicy)
$(LOCAL_BUILT_MODULE): $(general_property_contexts.tmp) $(built_general_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc $(ACP)
nonplat_property_contexts.tmp := $(intermediates)/nonplat_property_contexts.tmp
$(nonplat_property_contexts.tmp): PRIVATE_PC_FILES := $(nonplat_pcfiles)
$(nonplat_property_contexts.tmp): PRIVATE_ADDITIONAL_M4DEFS := $(LOCAL_ADDITIONAL_M4DEFS)
$(nonplat_property_contexts.tmp): $(nonplat_pcfiles)
@mkdir -p $(dir $@)
$(hide) sed -e 's/#.*$$//' -e '/^$$/d' $< > $@
$(hide) m4 -s $(PRIVATE_ADDITIONAL_M4DEFS) $(PRIVATE_PC_FILES) > $@
$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_sepolicy)
$(LOCAL_BUILT_MODULE): $(nonplat_property_contexts.tmp) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc
@mkdir -p $(dir $@)
$(hide) sed -e 's/#.*$$//' -e '/^$$/d' $< | sort -u -o $@
$(hide) $(HOST_OUT_EXECUTABLES)/checkfc -p $(PRIVATE_SEPOLICY) $@
general_property_contexts.tmp :=
built_nonplat_pc := $(LOCAL_BUILT_MODULE)
nonplat_pcfiles :=
nonplat_property_contexts.tmp :=
##################################
include $(CLEAR_VARS)
@ -947,7 +955,7 @@ LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
include $(BUILD_SYSTEM)/base_rules.mk
$(LOCAL_BUILT_MODULE): $(built_sepolicy) $(built_pc) $(built_plat_fc) \
$(LOCAL_BUILT_MODULE): $(built_sepolicy) $(built_plat_pc) $(built_nonplat_pc) $(built_plat_fc) \
$(buit_nonplat_fc) $(built_plat_sc) $(built_nonplat_sc) $(built_plat_svc) $(built_nonplat_svc)
@mkdir -p $(dir $@)
$(hide) echo -n $(BUILD_FINGERPRINT_FROM_FILE) > $@
@ -962,7 +970,8 @@ built_nonplat_fc :=
built_general_sepolicy :=
built_general_sepolicy.conf :=
built_nl :=
built_pc :=
built_plat_pc :=
built_nonplat_pc :=
built_nonplat_sc :=
built_plat_sc :=
built_sepolicy :=

3
CleanSpec.mk
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@ -60,3 +60,6 @@ $(call add-clean-step, rm -rf $(PRODUCT_OUT)/recovery/root/plat_property_context
$(call add-clean-step, rm -rf $(PRODUCT_OUT)/root/property_contexts)
$(call add-clean-step, rm -rf $(PRODUCT_OUT)/recovery/root/property_contexts)
$(call add-clean-step, rm -rf $(PRODUCT_OUT)/root/property_contexts)
$(call add-clean-step, rm -rf $(PRODUCT_OUT)/recovery/root/property_contexts)

3
private/file_contexts
View File

@ -41,7 +41,8 @@
/mapping_sepolicy\.cil u:object_r:rootfs:s0
/nonplat_sepolicy\.cil u:object_r:rootfs:s0
/plat_sepolicy\.cil u:object_r:rootfs:s0
/property_contexts u:object_r:property_contexts:s0
/plat_property_contexts u:object_r:property_contexts:s0
/nonplat_property_contexts u:object_r:property_contexts:s0
/seapp_contexts u:object_r:rootfs:s0
/nonplat_seapp_contexts u:object_r:rootfs:s0
/plat_seapp_contexts u:object_r:rootfs:s0

3
reqd_mask/property_contexts Normal file
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@ -0,0 +1,3 @@
# empty property_contexts file - this file is used to generate an empty
# non-platform property context for devices without any property_contexts
# customizations.