// Copyright (C) 2018 The Android Open Source Project // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package { default_applicable_licenses: ["system_sepolicy_license"], } // Added automatically by a large-scale-change that took the approach of // 'apply every license found to every target'. While this makes sure we respect // every license restriction, it may not be entirely correct. // // e.g. GPL in an MIT project might only apply to the contrib/ directory. // // Please consider splitting the single license below into multiple licenses, // taking care not to lose any license_kind information, and overriding the // default license using the 'licenses: [...]' property on targets as needed. // // For unused files, consider creating a 'filegroup' with "//visibility:private" // to attach the license to, and including a comment whether the files may be // used in the current project. // http://go/android-license-faq license { name: "system_sepolicy_license", visibility: [":__subpackages__"], license_kinds: [ "SPDX-license-identifier-Apache-2.0", "legacy_unencumbered", ], license_text: [ "NOTICE", ], } cc_defaults { name: "selinux_policy_version", cflags: ["-DSEPOLICY_VERSION=30"], } // For vts_treble_sys_prop_test filegroup { name: "private_property_contexts", srcs: ["private/property_contexts"], visibility: [ "//test/vts-testcase/security/system_property", ], } se_build_files { name: "se_build_files", srcs: [ "security_classes", "initial_sids", "access_vectors", "global_macros", "neverallow_macros", "mls_macros", "mls_decl", "mls", "policy_capabilities", "te_macros", "attributes", "ioctl_defines", "ioctl_macros", "*.te", "roles_decl", "roles", "users", "initial_sid_contexts", "fs_use", "genfs_contexts", "port_contexts", ], } se_build_files { name: "sepolicy_technical_debt", srcs: ["technical_debt.cil"], } reqd_mask_policy = [":se_build_files{.reqd_mask}"] plat_public_policy = [":se_build_files{.plat_public}"] plat_private_policy = [":se_build_files{.plat_private}"] system_ext_public_policy = [":se_build_files{.system_ext_public}"] system_ext_private_policy = [":se_build_files{.system_ext_private}"] product_public_policy = [":se_build_files{.product_public}"] product_private_policy = [":se_build_files{.product_private}"] // reqd_policy_mask - a policy.conf file which contains only the bare minimum // policy necessary to use checkpolicy. // // This bare-minimum policy needs to be present in all policy.conf files, but // should not necessarily be exported as part of the public policy. // // The rules generated by reqd_policy_mask will allow the compilation of public // policy and subsequent removal of CIL policy that should not be exported. se_policy_conf { name: "reqd_policy_mask.conf", srcs: reqd_mask_policy, installable: false, } se_policy_cil { name: "reqd_policy_mask.cil", src: ":reqd_policy_mask.conf", secilc_check: false, installable: false, } // pub_policy - policy that will be exported to be a part of non-platform // policy corresponding to this platform version. // // This is a limited subset of policy that would not compile in checkpolicy on // its own. // // To get around this limitation, add only the required files from private // policy, which will generate CIL policy that will then be filtered out by the // reqd_policy_mask. // // There are three pub_policy.cil files below: // - pub_policy.cil: exported 'product', 'system_ext' and 'system' policy. // - system_ext_pub_policy.cil: exported 'system_ext' and 'system' policy. // - plat_pub_policy.cil: exported 'system' policy. // // Those above files will in turn be used to generate the following versioned cil files: // - product_mapping_file: the versioned, exported 'product' policy in product partition. // - system_ext_mapping_file: the versioned, exported 'system_ext' policy in system_ext partition. // - plat_mapping_file: the versioned, exported 'system' policy in system partition. // - plat_pub_versioned.cil: the versioned, exported 'product', 'system_ext' and 'system' policy // in vendor partition. // se_policy_conf { name: "pub_policy.conf", srcs: plat_public_policy + system_ext_public_policy + product_public_policy + reqd_mask_policy, vendor: true, installable: false, } se_policy_cil { name: "pub_policy.cil", src: ":pub_policy.conf", filter_out: [":reqd_policy_mask.cil"], secilc_check: false, vendor: true, installable: false, } se_policy_conf { name: "system_ext_pub_policy.conf", srcs: plat_public_policy + system_ext_public_policy + reqd_mask_policy, system_ext_specific: true, installable: false, } se_policy_cil { name: "system_ext_pub_policy.cil", src: ":system_ext_pub_policy.conf", filter_out: [":reqd_policy_mask.cil"], secilc_check: false, system_ext_specific: true, installable: false, } se_policy_conf { name: "plat_pub_policy.conf", srcs: plat_public_policy + reqd_mask_policy, installable: false, } se_policy_cil { name: "plat_pub_policy.cil", src: ":plat_pub_policy.conf", filter_out: [":reqd_policy_mask.cil"], secilc_check: false, installable: false, } // plat_policy.conf - A combination of the private and public platform policy // which will ship with the device. // // The platform will always reflect the most recent platform version and is not // currently being attributized. se_policy_conf { name: "plat_sepolicy.conf", srcs: plat_public_policy + plat_private_policy, installable: false, } se_policy_cil { name: "plat_sepolicy.cil", src: ":plat_sepolicy.conf", additional_cil_files: [":sepolicy_technical_debt{.plat_private}"], } // userdebug_plat_policy.conf - the userdebug version plat_sepolicy.cil se_policy_conf { name: "userdebug_plat_sepolicy.conf", srcs: plat_public_policy + plat_private_policy, build_variant: "userdebug", installable: false, } se_policy_cil { name: "userdebug_plat_sepolicy.cil", src: ":userdebug_plat_sepolicy.conf", additional_cil_files: [":sepolicy_technical_debt{.plat_private}"], debug_ramdisk: true, dist: { targets: ["droidcore"], }, } // A copy of the userdebug_plat_policy in GSI. soong_config_module_type { name: "gsi_se_policy_cil", module_type: "se_policy_cil", config_namespace: "ANDROID", bool_variables: [ "PRODUCT_INSTALL_DEBUG_POLICY_TO_SYSTEM_EXT", ], properties: [ "enabled", "installable", ], } gsi_se_policy_cil { name: "system_ext_userdebug_plat_sepolicy.cil", stem: "userdebug_plat_sepolicy.cil", src: ":userdebug_plat_sepolicy.conf", additional_cil_files: [":sepolicy_technical_debt{.plat_private}"], system_ext_specific: true, enabled: false, installable: false, soong_config_variables: { PRODUCT_INSTALL_DEBUG_POLICY_TO_SYSTEM_EXT: { enabled: true, installable: true, }, }, } // system_ext_policy.conf - A combination of the private and public system_ext // policy which will ship with the device. System_ext policy is not attributized se_policy_conf { name: "system_ext_sepolicy.conf", srcs: plat_public_policy + plat_private_policy + system_ext_public_policy + system_ext_private_policy, system_ext_specific: true, installable: false, } se_policy_cil { name: "system_ext_sepolicy.cil", src: ":system_ext_sepolicy.conf", system_ext_specific: true, filter_out: [":plat_sepolicy.cil"], remove_line_marker: true, } // product_policy.conf - A combination of the private and public product policy // which will ship with the device. Product policy is not attributized se_policy_conf { name: "product_sepolicy.conf", srcs: plat_public_policy + plat_private_policy + system_ext_public_policy + system_ext_private_policy + product_public_policy + product_private_policy, product_specific: true, installable: false, } se_policy_cil { name: "product_sepolicy.cil", src: ":product_sepolicy.conf", product_specific: true, filter_out: [":plat_sepolicy.cil", ":system_ext_sepolicy.cil"], remove_line_marker: true, } // policy mapping files // auto-generate the mapping file for current platform policy, since it needs to // track platform policy development se_versioned_policy { name: "plat_mapping_file", base: ":plat_pub_policy.cil", mapping: true, version: "current", relative_install_path: "mapping", // install to /system/etc/selinux/mapping } se_versioned_policy { name: "system_ext_mapping_file", base: ":system_ext_pub_policy.cil", mapping: true, version: "current", filter_out: [":plat_mapping_file"], relative_install_path: "mapping", // install to /system_ext/etc/selinux/mapping system_ext_specific: true, } se_versioned_policy { name: "product_mapping_file", base: ":pub_policy.cil", mapping: true, version: "current", filter_out: [":plat_mapping_file", ":system_ext_mapping_file"], relative_install_path: "mapping", // install to /product/etc/selinux/mapping product_specific: true, } ////////////////////////////////// // vendor/odm sepolicy ////////////////////////////////// // plat_pub_versioned.cil - the exported platform policy associated with the version // that non-platform policy targets. se_versioned_policy { name: "plat_pub_versioned.cil", base: ":pub_policy.cil", target_policy: ":pub_policy.cil", version: "vendor", vendor: true, } // vendor_policy.cil - the vendor sepolicy. This needs attributization and to be combined // with the platform-provided policy. It makes use of the reqd_policy_mask files from private // policy and the platform public policy files in order to use checkpolicy. se_policy_conf { name: "vendor_sepolicy.conf", srcs: plat_public_policy + system_ext_public_policy + product_public_policy + reqd_mask_policy + [ ":se_build_files{.plat_vendor}", ":se_build_files{.vendor}", ], vendor: true, installable: false, } se_policy_cil { name: "vendor_sepolicy.cil.raw", src: ":vendor_sepolicy.conf", filter_out: [":reqd_policy_mask.cil"], secilc_check: false, // will be done in se_versioned_policy module vendor: true, installable: false, } se_versioned_policy { name: "vendor_sepolicy.cil", base: ":pub_policy.cil", target_policy: ":vendor_sepolicy.cil.raw", version: "vendor", dependent_cils: [ ":plat_sepolicy.cil", ":system_ext_sepolicy.cil", ":product_sepolicy.cil", ":plat_pub_versioned.cil", ":plat_mapping_file", ], filter_out: [":plat_pub_versioned.cil"], vendor: true, } // odm_policy.cil - the odl sepolicy. This needs attributization and to be combined // with the platform-provided policy. It makes use of the reqd_policy_mask files from private // policy and the platform public policy files in order to use checkpolicy. se_policy_conf { name: "odm_sepolicy.conf", srcs: plat_public_policy + system_ext_public_policy + product_public_policy + reqd_mask_policy + [ ":se_build_files{.plat_vendor}", ":se_build_files{.vendor}", ":se_build_files{.odm}", ], device_specific: true, installable: false, } se_policy_cil { name: "odm_sepolicy.cil.raw", src: ":odm_sepolicy.conf", filter_out: [ ":reqd_policy_mask.cil", ":vendor_sepolicy.cil", ], secilc_check: false, // will be done in se_versioned_policy module device_specific: true, installable: false, } se_versioned_policy { name: "odm_sepolicy.cil", base: ":pub_policy.cil", target_policy: ":odm_sepolicy.cil.raw", version: "vendor", dependent_cils: [ ":plat_sepolicy.cil", ":system_ext_sepolicy.cil", ":product_sepolicy.cil", ":plat_pub_versioned.cil", ":plat_mapping_file", ":vendor_sepolicy.cil", ], filter_out: [":plat_pub_versioned.cil", ":vendor_sepolicy.cil"], device_specific: true, } ////////////////////////////////// // Precompiled sepolicy is loaded if and only if: // - plat_sepolicy_and_mapping.sha256 equals // precompiled_sepolicy.plat_sepolicy_and_mapping.sha256 // AND // - system_ext_sepolicy_and_mapping.sha256 equals // precompiled_sepolicy.system_ext_sepolicy_and_mapping.sha256 // AND // - product_sepolicy_and_mapping.sha256 equals // precompiled_sepolicy.product_sepolicy_and_mapping.sha256 // See system/core/init/selinux.cpp for details. ////////////////////////////////// genrule { name: "plat_sepolicy_and_mapping.sha256_gen", srcs: [":plat_sepolicy.cil", ":plat_mapping_file"], out: ["plat_sepolicy_and_mapping.sha256"], cmd: "cat $(in) | sha256sum | cut -d' ' -f1 > $(out)", } prebuilt_etc { name: "plat_sepolicy_and_mapping.sha256", filename: "plat_sepolicy_and_mapping.sha256", src: ":plat_sepolicy_and_mapping.sha256_gen", relative_install_path: "selinux", } genrule { name: "system_ext_sepolicy_and_mapping.sha256_gen", srcs: [":system_ext_sepolicy.cil", ":system_ext_mapping_file"], out: ["system_ext_sepolicy_and_mapping.sha256"], cmd: "cat $(in) | sha256sum | cut -d' ' -f1 > $(out)", } prebuilt_etc { name: "system_ext_sepolicy_and_mapping.sha256", filename: "system_ext_sepolicy_and_mapping.sha256", src: ":system_ext_sepolicy_and_mapping.sha256_gen", relative_install_path: "selinux", system_ext_specific: true, } genrule { name: "product_sepolicy_and_mapping.sha256_gen", srcs: [":product_sepolicy.cil", ":product_mapping_file"], out: ["product_sepolicy_and_mapping.sha256"], cmd: "cat $(in) | sha256sum | cut -d' ' -f1 > $(out)", } prebuilt_etc { name: "product_sepolicy_and_mapping.sha256", filename: "product_sepolicy_and_mapping.sha256", src: ":product_sepolicy_and_mapping.sha256_gen", relative_install_path: "selinux", product_specific: true, } sepolicy_vers { name: "plat_sepolicy_vers.txt", version: "vendor", vendor: true, } soong_config_module_type { name: "precompiled_sepolicy_prebuilts_defaults", module_type: "prebuilt_defaults", config_namespace: "ANDROID", bool_variables: ["BOARD_USES_ODMIMAGE"], properties: ["vendor", "device_specific"], } precompiled_sepolicy_prebuilts_defaults { name: "precompiled_sepolicy_prebuilts", soong_config_variables: { BOARD_USES_ODMIMAGE: { device_specific: true, conditions_default: { vendor: true, }, }, }, } ////////////////////////////////// // SHA-256 digest of the plat_sepolicy.cil and plat_mapping_file against // which precompiled_policy was built. ////////////////////////////////// prebuilt_etc { defaults: ["precompiled_sepolicy_prebuilts"], name: "precompiled_sepolicy.plat_sepolicy_and_mapping.sha256", filename: "precompiled_sepolicy.plat_sepolicy_and_mapping.sha256", src: ":plat_sepolicy_and_mapping.sha256_gen", relative_install_path: "selinux", } ////////////////////////////////// // SHA-256 digest of the system_ext_sepolicy.cil and system_ext_mapping_file against // which precompiled_policy was built. ////////////////////////////////// prebuilt_etc { defaults: ["precompiled_sepolicy_prebuilts"], name: "precompiled_sepolicy.system_ext_sepolicy_and_mapping.sha256", filename: "precompiled_sepolicy.system_ext_sepolicy_and_mapping.sha256", src: ":system_ext_sepolicy_and_mapping.sha256_gen", relative_install_path: "selinux", } ////////////////////////////////// // SHA-256 digest of the product_sepolicy.cil and product_mapping_file against // which precompiled_policy was built. ////////////////////////////////// prebuilt_etc { defaults: ["precompiled_sepolicy_prebuilts"], name: "precompiled_sepolicy.product_sepolicy_and_mapping.sha256", filename: "precompiled_sepolicy.product_sepolicy_and_mapping.sha256", src: ":product_sepolicy_and_mapping.sha256_gen", relative_install_path: "selinux", } soong_config_module_type { name: "precompiled_se_policy_binary", module_type: "se_policy_binary", config_namespace: "ANDROID", bool_variables: ["BOARD_USES_ODMIMAGE"], properties: ["vendor", "device_specific"], } filegroup { name: "precompiled_sepolicy_srcs", srcs: [ ":plat_sepolicy.cil", ":plat_pub_versioned.cil", ":system_ext_sepolicy.cil", ":product_sepolicy.cil", ":vendor_sepolicy.cil", ":odm_sepolicy.cil", ":plat_mapping_file", ":system_ext_mapping_file", ":product_mapping_file", ], // Make precompiled_sepolicy_srcs as public so that OEMs have access to them. // Useful when some partitions need to be bind mounted across VM boundaries. visibility: ["//visibility:public"], } precompiled_se_policy_binary { name: "precompiled_sepolicy", srcs: [ ":precompiled_sepolicy_srcs", ], soong_config_variables: { BOARD_USES_ODMIMAGE: { device_specific: true, conditions_default: { vendor: true, }, }, }, required: [ "sepolicy_neverallows", ], dist: { targets: ["base-sepolicy-files-for-mapping"], }, } // policy for recovery se_policy_conf { name: "recovery_sepolicy.conf", srcs: plat_public_policy + plat_private_policy + system_ext_public_policy + system_ext_private_policy + product_public_policy + product_private_policy + [ ":se_build_files{.plat_vendor}", ":se_build_files{.vendor}", ":se_build_files{.odm}", ], target_recovery: true, installable: false, recovery: true, } se_policy_cil { name: "recovery_sepolicy.cil", src: ":recovery_sepolicy.conf", secilc_check: false, // will be done in se_policy_binary module installable: false, recovery: true, } se_policy_binary { name: "sepolicy.recovery", srcs: [":recovery_sepolicy.cil"], stem: "sepolicy", recovery: true, } ////////////////////////////////// // SELinux policy embedded into CTS. // CTS checks neverallow rules of this policy against the policy of the device under test. ////////////////////////////////// se_policy_conf { name: "general_sepolicy.conf", srcs: plat_public_policy + plat_private_policy, build_variant: "user", cts: true, exclude_build_test: true, } ////////////////////////////////// // Base system policy for treble sepolicy tests. // If system sepolicy is extended (e.g. by SoC vendors), their plat_pub_versioned.cil may differ // with system/sepolicy/prebuilts/api/{version}/plat_pub_versioned.cil. In that case, // BOARD_PLAT_PUB_VERSIONED_POLICY can be used to specify extended plat_pub_versioned.cil. // See treble_sepolicy_tests_for_release.mk for more details. ////////////////////////////////// se_policy_conf { name: "base_plat_sepolicy.conf", srcs: plat_public_policy + plat_private_policy, build_variant: "user", installable: false, } se_policy_cil { name: "base_plat_sepolicy.cil", src: ":base_plat_sepolicy.conf", additional_cil_files: ["private/technical_debt.cil"], installable: false, secilc_check: false, // done by se_policy_binary } se_policy_binary { name: "base_plat_sepolicy", srcs: [":base_plat_sepolicy.cil"], installable: false, dist: { targets: ["base-sepolicy-files-for-mapping"], }, } se_policy_conf { name: "base_product_sepolicy.conf", srcs: plat_public_policy + plat_private_policy + system_ext_public_policy + system_ext_private_policy + product_public_policy + product_private_policy, build_variant: "user", installable: false, product_specific: true, } se_policy_cil { name: "base_product_sepolicy.cil", src: ":base_product_sepolicy.conf", additional_cil_files: ["private/technical_debt.cil"], product_specific: true, installable: false, secilc_check: false, // done by se_policy_binary } se_policy_binary { name: "base_product_sepolicy", srcs: [":base_product_sepolicy.cil"], product_specific: true, installable: false, } se_policy_conf { name: "base_plat_pub_policy.conf", srcs: plat_public_policy + reqd_mask_policy, build_variant: "user", installable: false, } se_policy_cil { name: "base_plat_pub_policy.cil", src: ":base_plat_pub_policy.conf", filter_out: [":reqd_policy_mask.cil"], secilc_check: false, installable: false, dist: { targets: ["base-sepolicy-files-for-mapping"], }, } se_policy_conf { name: "base_product_pub_policy.conf", srcs: plat_public_policy + system_ext_public_policy + product_public_policy + reqd_mask_policy, build_variant: "user", installable: false, product_specific: true, } se_policy_cil { name: "base_product_pub_policy.cil", src: ":base_product_pub_policy.conf", filter_out: [":reqd_policy_mask.cil"], secilc_check: false, installable: false, product_specific: true, } // bug_map - Bug tracking information for selinux denials loaded by auditd. se_build_files { name: "bug_map_files", srcs: ["bug_map"], } se_bug_map { name: "plat_bug_map", srcs: [":bug_map_files{.plat_private}"], stem: "bug_map", } se_bug_map { name: "system_ext_bug_map", srcs: [":bug_map_files{.system_ext_private}"], stem: "bug_map", system_ext_specific: true, } se_bug_map { name: "vendor_bug_map", srcs: [":bug_map_files{.vendor}", ":bug_map_files{.plat_vendor}"], // Legacy file name of the vendor partition bug_map. stem: "selinux_denial_metadata", vendor: true, } se_neverallow_test { name: "sepolicy_neverallows", srcs: plat_public_policy + plat_private_policy + system_ext_public_policy + system_ext_private_policy + product_public_policy + product_private_policy + [ ":se_build_files{.plat_vendor}", ":se_build_files{.vendor}", ":se_build_files{.odm}", ], } ////////////////////////////////// // se_freeze_test compares the plat sepolicy with the prebuilt sepolicy // Additional directories can be specified via Makefile variables: // SEPOLICY_FREEZE_TEST_EXTRA_DIRS and SEPOLICY_FREEZE_TEST_EXTRA_PREBUILT_DIRS. ////////////////////////////////// se_freeze_test { name: "se_freeze_test", } ////////////////////////////////// // sepolicy_test checks various types of violations, which can't be easily done // by CIL itself. Refer tests/sepolicy_tests.py for more detail. ////////////////////////////////// genrule { name: "sepolicy_test", srcs: [ ":plat_file_contexts", ":vendor_file_contexts", ":system_ext_file_contexts", ":product_file_contexts", ":odm_file_contexts", ":precompiled_sepolicy", ], tools: ["sepolicy_tests"], out: ["sepolicy_test"], cmd: "$(location sepolicy_tests) " + "-f $(location :plat_file_contexts) " + "-f $(location :vendor_file_contexts) " + "-f $(location :system_ext_file_contexts) " + "-f $(location :product_file_contexts) " + "-f $(location :odm_file_contexts) " + "-p $(location :precompiled_sepolicy) && " + "touch $(out)", }