android_system_sepolicy/Android.mk

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LOCAL_PATH:= $(call my-dir)
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include $(CLEAR_VARS)
# SELinux policy version.
sepolicy: Drop BOARD_SEPOLICY_IGNORE/REPLACE support. With changes I431c1ab22fc53749f623937154b9ec43469d9645 and Ia54aa263f2245c7090f4b9d9703130c19f11bd28, it is no longer legitimate to use BOARD_SEPOLICY_IGNORE or REPLACE with any of the *_contexts files since the CTS requires the AOSP entries to be present in the device files. Further, these changes render BOARD_SEPOLICY_IGNORE unusable for most policy files since all domains and types referenced within any of the AOSP *_contexts entries must be defined in the kernel policy, so you cannot use BOARD_SEPOLICY_IGNORE to exclude any .te file that defines a type referenced in any of those *_contexts files. There does not seem to be a significant need for such a facility, as AOSP policy is small and only domains and types used by most devices should be defined in external/sepolicy. BOARD_SEPOLICY_REPLACE is commonly misused to eliminate neverallow rules from AOSP policy, which will only lead to CTS failures, especially since change Iefe508df265f62efa92f8eb74fc65542d39e3e74 introduced neverallow checking on the entire policy via sepolicy-analyze. The only remaining legitimate function of BOARD_SEPOLICY_REPLACE is to support overriding AOSP .te files with more restrictive rule sets. However, the need for this facility has been significantly reduced by the fact that AOSP policy is now fully confined + enforcing for all domains, and further restrictions beyond AOSP carry a compatibility risk. Builders of custom policies and custom ROMs still have the freedom to apply patches on top of external/sepolicy to tighten rule sets (which are likely more maintainable than maintaining a completely separate copy of the file via BOARD_SEPOLICY_REPLACE) and/or of using their own separate policy build system as exemplified by https://bitbucket.org/quarksecurity/build-policies Change-Id: I2611e983f7cbfa15f9d45ec3ea301e94132b06fa Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2015-03-13 07:03:52 -07:00
# Must be <= /sys/fs/selinux/policyvers reported by the Android kernel.
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# Must be within the compatibility range reported by checkpolicy -V.
POLICYVERS ?= 26
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MLS_SENS=1
MLS_CATS=1024
sepolicy: Drop BOARD_SEPOLICY_IGNORE/REPLACE support. With changes I431c1ab22fc53749f623937154b9ec43469d9645 and Ia54aa263f2245c7090f4b9d9703130c19f11bd28, it is no longer legitimate to use BOARD_SEPOLICY_IGNORE or REPLACE with any of the *_contexts files since the CTS requires the AOSP entries to be present in the device files. Further, these changes render BOARD_SEPOLICY_IGNORE unusable for most policy files since all domains and types referenced within any of the AOSP *_contexts entries must be defined in the kernel policy, so you cannot use BOARD_SEPOLICY_IGNORE to exclude any .te file that defines a type referenced in any of those *_contexts files. There does not seem to be a significant need for such a facility, as AOSP policy is small and only domains and types used by most devices should be defined in external/sepolicy. BOARD_SEPOLICY_REPLACE is commonly misused to eliminate neverallow rules from AOSP policy, which will only lead to CTS failures, especially since change Iefe508df265f62efa92f8eb74fc65542d39e3e74 introduced neverallow checking on the entire policy via sepolicy-analyze. The only remaining legitimate function of BOARD_SEPOLICY_REPLACE is to support overriding AOSP .te files with more restrictive rule sets. However, the need for this facility has been significantly reduced by the fact that AOSP policy is now fully confined + enforcing for all domains, and further restrictions beyond AOSP carry a compatibility risk. Builders of custom policies and custom ROMs still have the freedom to apply patches on top of external/sepolicy to tighten rule sets (which are likely more maintainable than maintaining a completely separate copy of the file via BOARD_SEPOLICY_REPLACE) and/or of using their own separate policy build system as exemplified by https://bitbucket.org/quarksecurity/build-policies Change-Id: I2611e983f7cbfa15f9d45ec3ea301e94132b06fa Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2015-03-13 07:03:52 -07:00
ifdef BOARD_SEPOLICY_REPLACE
$(error BOARD_SEPOLICY_REPLACE is no longer supported; please remove from your BoardConfig.mk or other .mk file.)
endif
ifdef BOARD_SEPOLICY_IGNORE
$(error BOARD_SEPOLICY_IGNORE is no longer supported; please remove from your BoardConfig.mk or other .mk file.)
endif
# Quick edge case error detection for BOARD_SEPOLICY_UNION.
# This ensures that a requested union file exists somewhere
# in one of the listed BOARD_SEPOLICY_DIRS.
$(foreach pf, $(BOARD_SEPOLICY_UNION), \
$(if $(filter 0, $(words $(wildcard $(addsuffix /$(pf), $(BOARD_SEPOLICY_DIRS))))), \
$(error No sepolicy file found for $(pf) in $(BOARD_SEPOLICY_DIRS)), \
) \
)
# Builds paths for all requested policy files w.r.t
sepolicy: Drop BOARD_SEPOLICY_IGNORE/REPLACE support. With changes I431c1ab22fc53749f623937154b9ec43469d9645 and Ia54aa263f2245c7090f4b9d9703130c19f11bd28, it is no longer legitimate to use BOARD_SEPOLICY_IGNORE or REPLACE with any of the *_contexts files since the CTS requires the AOSP entries to be present in the device files. Further, these changes render BOARD_SEPOLICY_IGNORE unusable for most policy files since all domains and types referenced within any of the AOSP *_contexts entries must be defined in the kernel policy, so you cannot use BOARD_SEPOLICY_IGNORE to exclude any .te file that defines a type referenced in any of those *_contexts files. There does not seem to be a significant need for such a facility, as AOSP policy is small and only domains and types used by most devices should be defined in external/sepolicy. BOARD_SEPOLICY_REPLACE is commonly misused to eliminate neverallow rules from AOSP policy, which will only lead to CTS failures, especially since change Iefe508df265f62efa92f8eb74fc65542d39e3e74 introduced neverallow checking on the entire policy via sepolicy-analyze. The only remaining legitimate function of BOARD_SEPOLICY_REPLACE is to support overriding AOSP .te files with more restrictive rule sets. However, the need for this facility has been significantly reduced by the fact that AOSP policy is now fully confined + enforcing for all domains, and further restrictions beyond AOSP carry a compatibility risk. Builders of custom policies and custom ROMs still have the freedom to apply patches on top of external/sepolicy to tighten rule sets (which are likely more maintainable than maintaining a completely separate copy of the file via BOARD_SEPOLICY_REPLACE) and/or of using their own separate policy build system as exemplified by https://bitbucket.org/quarksecurity/build-policies Change-Id: I2611e983f7cbfa15f9d45ec3ea301e94132b06fa Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
2015-03-13 07:03:52 -07:00
# BOARD_SEPOLICY_UNION variables.
# $(1): the set of policy name paths to build
build_policy = $(foreach type, $(1), \
$(foreach expanded_type, $(notdir $(wildcard $(addsuffix /$(type), $(LOCAL_PATH)))), \
$(LOCAL_PATH)/$(expanded_type) \
) \
$(foreach union_policy, $(wildcard $(addsuffix /$(type), $(BOARD_SEPOLICY_DIRS))), \
$(if $(filter $(notdir $(union_policy)), $(BOARD_SEPOLICY_UNION)), \
$(union_policy), \
) \
) \
sepolicy: Drop BOARD_SEPOLICY_IGNORE/REPLACE support. With changes I431c1ab22fc53749f623937154b9ec43469d9645 and Ia54aa263f2245c7090f4b9d9703130c19f11bd28, it is no longer legitimate to use BOARD_SEPOLICY_IGNORE or REPLACE with any of the *_contexts files since the CTS requires the AOSP entries to be present in the device files. Further, these changes render BOARD_SEPOLICY_IGNORE unusable for most policy files since all domains and types referenced within any of the AOSP *_contexts entries must be defined in the kernel policy, so you cannot use BOARD_SEPOLICY_IGNORE to exclude any .te file that defines a type referenced in any of those *_contexts files. There does not seem to be a significant need for such a facility, as AOSP policy is small and only domains and types used by most devices should be defined in external/sepolicy. BOARD_SEPOLICY_REPLACE is commonly misused to eliminate neverallow rules from AOSP policy, which will only lead to CTS failures, especially since change Iefe508df265f62efa92f8eb74fc65542d39e3e74 introduced neverallow checking on the entire policy via sepolicy-analyze. The only remaining legitimate function of BOARD_SEPOLICY_REPLACE is to support overriding AOSP .te files with more restrictive rule sets. However, the need for this facility has been significantly reduced by the fact that AOSP policy is now fully confined + enforcing for all domains, and further restrictions beyond AOSP carry a compatibility risk. Builders of custom policies and custom ROMs still have the freedom to apply patches on top of external/sepolicy to tighten rule sets (which are likely more maintainable than maintaining a completely separate copy of the file via BOARD_SEPOLICY_REPLACE) and/or of using their own separate policy build system as exemplified by https://bitbucket.org/quarksecurity/build-policies Change-Id: I2611e983f7cbfa15f9d45ec3ea301e94132b06fa Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
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)
sepolicy_build_files := security_classes \
initial_sids \
access_vectors \
global_macros \
neverallow_macros \
mls_macros \
mls \
policy_capabilities \
te_macros \
attributes \
*.te \
roles \
users \
initial_sid_contexts \
fs_use \
genfs_contexts \
port_contexts
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##################################
include $(CLEAR_VARS)
LOCAL_MODULE := sepolicy
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
include $(BUILD_SYSTEM)/base_rules.mk
sepolicy_policy.conf := $(intermediates)/policy.conf
$(sepolicy_policy.conf): PRIVATE_MLS_SENS := $(MLS_SENS)
$(sepolicy_policy.conf): PRIVATE_MLS_CATS := $(MLS_CATS)
$(sepolicy_policy.conf) : $(call build_policy, $(sepolicy_build_files))
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@mkdir -p $(dir $@)
$(hide) m4 -D mls_num_sens=$(PRIVATE_MLS_SENS) -D mls_num_cats=$(PRIVATE_MLS_CATS) \
-D target_build_variant=$(TARGET_BUILD_VARIANT) \
-s $^ > $@
$(hide) sed '/dontaudit/d' $@ > $@.dontaudit
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$(LOCAL_BUILT_MODULE) : $(sepolicy_policy.conf) $(HOST_OUT_EXECUTABLES)/checkpolicy
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@mkdir -p $(dir $@)
$(hide) $(HOST_OUT_EXECUTABLES)/checkpolicy -M -c $(POLICYVERS) -o $@ $<
$(hide) $(HOST_OUT_EXECUTABLES)/checkpolicy -M -c $(POLICYVERS) -o $(dir $<)/$(notdir $@).dontaudit $<.dontaudit
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built_sepolicy := $(LOCAL_BUILT_MODULE)
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sepolicy_policy.conf :=
##################################
include $(CLEAR_VARS)
LOCAL_MODULE := sepolicy.recovery
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := eng
include $(BUILD_SYSTEM)/base_rules.mk
sepolicy_policy_recovery.conf := $(intermediates)/policy_recovery.conf
$(sepolicy_policy_recovery.conf): PRIVATE_MLS_SENS := $(MLS_SENS)
$(sepolicy_policy_recovery.conf): PRIVATE_MLS_CATS := $(MLS_CATS)
$(sepolicy_policy_recovery.conf) : $(call build_policy, $(sepolicy_build_files))
@mkdir -p $(dir $@)
$(hide) m4 -D mls_num_sens=$(PRIVATE_MLS_SENS) -D mls_num_cats=$(PRIVATE_MLS_CATS) \
-D target_build_variant=$(TARGET_BUILD_VARIANT) \
-D target_recovery=true \
-s $^ > $@
$(LOCAL_BUILT_MODULE) : $(sepolicy_policy_recovery.conf) $(HOST_OUT_EXECUTABLES)/checkpolicy
@mkdir -p $(dir $@)
$(hide) $(HOST_OUT_EXECUTABLES)/checkpolicy -M -c $(POLICYVERS) -o $@ $<
built_sepolicy_recovery := $(LOCAL_BUILT_MODULE)
sepolicy_policy_recovery.conf :=
##################################
include $(CLEAR_VARS)
LOCAL_MODULE := general_sepolicy.conf
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := tests
include $(BUILD_SYSTEM)/base_rules.mk
exp_sepolicy_build_files :=\
$(wildcard $(addprefix $(LOCAL_PATH)/, $(sepolicy_build_files)))
$(LOCAL_BUILT_MODULE): PRIVATE_MLS_SENS := $(MLS_SENS)
$(LOCAL_BUILT_MODULE): PRIVATE_MLS_CATS := $(MLS_CATS)
$(LOCAL_BUILT_MODULE): $(exp_sepolicy_build_files)
mkdir -p $(dir $@)
$(hide) m4 -D mls_num_sens=$(PRIVATE_MLS_SENS) -D mls_num_cats=$(PRIVATE_MLS_CATS) \
-D target_build_variant=user \
-s $^ > $@
$(hide) sed '/dontaudit/d' $@ > $@.dontaudit
GENERAL_SEPOLICY_POLICY.CONF = $(LOCAL_BUILT_MODULE)
exp_sepolicy_build_files :=
##################################
include $(CLEAR_VARS)
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LOCAL_MODULE := file_contexts
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
include $(BUILD_SYSTEM)/base_rules.mk
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ALL_FC_FILES := $(call build_policy, file_contexts)
$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_sepolicy)
$(LOCAL_BUILT_MODULE): $(ALL_FC_FILES) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc
@mkdir -p $(dir $@)
$(hide) m4 -s $(ALL_FC_FILES) > $@
$(hide) $(HOST_OUT_EXECUTABLES)/checkfc $(PRIVATE_SEPOLICY) $@
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built_fc := $(LOCAL_BUILT_MODULE)
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##################################
include $(CLEAR_VARS)
LOCAL_MODULE := general_file_contexts
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := tests
include $(BUILD_SYSTEM)/base_rules.mk
$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_sepolicy)
$(LOCAL_BUILT_MODULE) : $(addprefix $(LOCAL_PATH)/, file_contexts) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc
@mkdir -p $(dir $@)
$(hide) m4 -s $< > $@
$(hide) $(HOST_OUT_EXECUTABLES)/checkfc $(PRIVATE_SEPOLICY) $@
GENERAL_FILE_CONTEXTS := $(LOCAL_BUILT_MODULE)
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##################################
include $(CLEAR_VARS)
LOCAL_MODULE := seapp_contexts
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
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include $(BUILD_SYSTEM)/base_rules.mk
seapp_contexts.tmp := $(intermediates)/seapp_contexts.tmp
$(seapp_contexts.tmp): $(call build_policy, seapp_contexts)
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@mkdir -p $(dir $@)
$(hide) m4 -s $^ > $@
$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_sepolicy)
$(LOCAL_BUILT_MODULE) : $(seapp_contexts.tmp) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkseapp
@mkdir -p $(dir $@)
$(HOST_OUT_EXECUTABLES)/checkseapp -p $(PRIVATE_SEPOLICY) -o $@ $<
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built_sc := $(LOCAL_BUILT_MODULE)
seapp_contexts.tmp :=
##################################
include $(CLEAR_VARS)
LOCAL_MODULE := general_seapp_contexts
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := tests
include $(BUILD_SYSTEM)/base_rules.mk
general_seapp_contexts.tmp := $(intermediates)/general_seapp_contexts.tmp
$(general_seapp_contexts.tmp): $(addprefix $(LOCAL_PATH)/, seapp_contexts)
@mkdir -p $(dir $@)
$(hide) m4 -s $^ > $@
$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_sepolicy)
$(LOCAL_BUILT_MODULE) : $(general_seapp_contexts.tmp) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkseapp
@mkdir -p $(dir $@)
$(HOST_OUT_EXECUTABLES)/checkseapp -p $(PRIVATE_SEPOLICY) -o $@ $<
GENERAL_SEAPP_CONTEXTS := $(LOCAL_BUILT_MODULE)
general_seapp_contexts.tmp :=
##################################
include $(CLEAR_VARS)
LOCAL_MODULE := property_contexts
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
include $(BUILD_SYSTEM)/base_rules.mk
ALL_PC_FILES := $(call build_policy, property_contexts)
$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_sepolicy)
$(LOCAL_BUILT_MODULE): $(ALL_PC_FILES) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc
@mkdir -p $(dir $@)
$(hide) m4 -s $(ALL_PC_FILES) > $@
$(hide) $(HOST_OUT_EXECUTABLES)/checkfc -p $(PRIVATE_SEPOLICY) $@
built_pc := $(LOCAL_BUILT_MODULE)
##################################
include $(CLEAR_VARS)
LOCAL_MODULE := general_property_contexts
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := tests
include $(BUILD_SYSTEM)/base_rules.mk
$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_sepolicy)
$(LOCAL_BUILT_MODULE) : $(addprefix $(LOCAL_PATH)/, property_contexts) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc
@mkdir -p $(dir $@)
$(hide) m4 -s $< > $@
$(hide) $(HOST_OUT_EXECUTABLES)/checkfc -p $(PRIVATE_SEPOLICY) $@
GENERAL_PROPERTY_CONTEXTS := $(LOCAL_BUILT_MODULE)
##################################
include $(CLEAR_VARS)
LOCAL_MODULE := service_contexts
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
include $(BUILD_SYSTEM)/base_rules.mk
ALL_SVC_FILES := $(call build_policy, service_contexts)
$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_sepolicy)
$(LOCAL_BUILT_MODULE): $(ALL_SVC_FILES) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc
@mkdir -p $(dir $@)
$(hide) m4 -s $(ALL_SVC_FILES) > $@
$(hide) $(HOST_OUT_EXECUTABLES)/checkfc -p $(PRIVATE_SEPOLICY) $@
built_svc := $(LOCAL_BUILT_MODULE)
##################################
include $(CLEAR_VARS)
LOCAL_MODULE := general_service_contexts
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := tests
include $(BUILD_SYSTEM)/base_rules.mk
$(LOCAL_BUILT_MODULE): PRIVATE_SEPOLICY := $(built_sepolicy)
$(LOCAL_BUILT_MODULE) : $(addprefix $(LOCAL_PATH)/, service_contexts) $(built_sepolicy) $(HOST_OUT_EXECUTABLES)/checkfc
@mkdir -p $(dir $@)
$(hide) m4 -s $< > $@
$(hide) $(HOST_OUT_EXECUTABLES)/checkfc -p $(PRIVATE_SEPOLICY) $@
GENERAL_SERVICE_CONTEXTS := $(LOCAL_BUILT_MODULE)
##################################
include $(CLEAR_VARS)
LOCAL_MODULE := mac_permissions.xml
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)/security
include $(BUILD_SYSTEM)/base_rules.mk
# Build keys.conf
mac_perms_keys.tmp := $(intermediates)/keys.tmp
$(mac_perms_keys.tmp) : $(call build_policy, keys.conf)
@mkdir -p $(dir $@)
$(hide) m4 -s $^ > $@
ALL_MAC_PERMS_FILES := $(call build_policy, $(LOCAL_MODULE))
$(LOCAL_BUILT_MODULE) : $(mac_perms_keys.tmp) $(HOST_OUT_EXECUTABLES)/insertkeys.py $(ALL_MAC_PERMS_FILES)
@mkdir -p $(dir $@)
$(hide) DEFAULT_SYSTEM_DEV_CERTIFICATE="$(dir $(DEFAULT_SYSTEM_DEV_CERTIFICATE))" \
$(HOST_OUT_EXECUTABLES)/insertkeys.py -t $(TARGET_BUILD_VARIANT) -c $(TOP) $< -o $@ $(ALL_MAC_PERMS_FILES)
mac_perms_keys.tmp :=
##################################
include $(CLEAR_VARS)
LOCAL_MODULE := selinux_version
LOCAL_MODULE_CLASS := ETC
LOCAL_MODULE_TAGS := optional
LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
include $(BUILD_SYSTEM)/base_rules.mk
$(LOCAL_BUILT_MODULE) : $(built_sepolicy) $(built_pc) $(built_fc) $(built_sc) $(built_svc)
@mkdir -p $(dir $@)
$(hide) echo -n $(BUILD_FINGERPRINT) > $@
##################################
build_policy :=
sepolicy_build_files :=
built_sepolicy :=
built_sc :=
built_fc :=
built_pc :=
built_svc :=
include $(call all-makefiles-under,$(LOCAL_PATH))