6a2451b580
Encountered when certinstaller tries to talk to keystore:
ComponentInfo{com.android.certinstaller/com.android.certinstaller.CertInstaller}: java.lang.NullPointerException: Attempt to invoke interface method 'int android.security.IKeystoreService.test()' on a null object reference
Address the following denial:
avc: denied { find } for service=android.security.keystore scontext=u:r:platform_app:s0:c512,c768 tcontext=u:object_r:keystore_service:s0 tclass=service_manager
Bug: 19347232
Change-Id: I35b46da3c78b384cf04216be937c6b5bfa86452d
140 lines
4.8 KiB
Text
140 lines
4.8 KiB
Text
###
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### Untrusted apps.
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###
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### This file defines the rules for untrusted apps.
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### Apps are labeled based on mac_permissions.xml (maps signer and
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### optionally package name to seinfo value) and seapp_contexts (maps UID
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### and optionally seinfo value to domain for process and type for data
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### directory). The untrusted_app domain is the default assignment in
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### seapp_contexts for any app with UID between APP_AID (10000)
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### and AID_ISOLATED_START (99000) if the app has no specific seinfo
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### value as determined from mac_permissions.xml. In current AOSP, this
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### domain is assigned to all non-system apps as well as to any system apps
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### that are not signed by the platform key. To move
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### a system app into a specific domain, add a signer entry for it to
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### mac_permissions.xml and assign it one of the pre-existing seinfo values
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### or define and use a new seinfo value in both mac_permissions.xml and
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### seapp_contexts.
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###
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### untrusted_app includes all the appdomain rules, plus the
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### additional following rules:
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###
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type untrusted_app, domain;
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app_domain(untrusted_app)
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net_domain(untrusted_app)
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bluetooth_domain(untrusted_app)
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# Some apps ship with shared libraries and binaries that they write out
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# to their sandbox directory and then execute.
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allow untrusted_app app_data_file:file { rx_file_perms execmod };
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allow untrusted_app tun_device:chr_file rw_file_perms;
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# ASEC
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allow untrusted_app asec_apk_file:file r_file_perms;
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# Execute libs in asec containers.
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allow untrusted_app asec_public_file:file { execute execmod };
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# Allow the allocation and use of ptys
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# Used by: https://play.google.com/store/apps/details?id=jackpal.androidterm
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create_pty(untrusted_app)
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# Used by Finsky / Android "Verify Apps" functionality when
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# running "adb install foo.apk".
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# TODO: Long term, we don't want apps probing into shell data files.
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# Figure out a way to remove these rules.
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allow untrusted_app shell_data_file:file r_file_perms;
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allow untrusted_app shell_data_file:dir r_dir_perms;
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#
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# Rules migrated from old app domains coalesced into untrusted_app.
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# This includes what used to be media_app, shared_app, and release_app.
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#
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# Access /dev/mtp_usb.
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allow untrusted_app mtp_device:chr_file rw_file_perms;
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# Access to /data/media.
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allow untrusted_app media_rw_data_file:dir create_dir_perms;
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allow untrusted_app media_rw_data_file:file create_file_perms;
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# Write to /cache.
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allow untrusted_app cache_file:dir create_dir_perms;
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allow untrusted_app cache_file:file create_file_perms;
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allow untrusted_app drmserver_service:service_manager find;
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allow untrusted_app mediaserver_service:service_manager find;
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allow untrusted_app nfc_service:service_manager find;
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allow untrusted_app radio_service:service_manager find;
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allow untrusted_app surfaceflinger_service:service_manager find;
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allow untrusted_app system_server_service:service_manager find;
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allow untrusted_app tmp_system_server_service:service_manager find;
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service_manager_local_audit_domain(untrusted_app)
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auditallow untrusted_app {
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tmp_system_server_service
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-accessibility_service
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-account_service
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-activity_service
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-appops_service
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-appwidget_service
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-assetatlas_service
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-audio_service
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-backup_service
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-batterystats_service
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-bluetooth_manager_service
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-connectivity_service
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-content_service
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-device_policy_service
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-display_service
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-dropbox_service
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-input_method_service
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-input_service
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-jobscheduler_service
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-location_service
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-mount_service
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-netstats_service
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-network_management_service
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-network_score_service
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-notification_service
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-persistent_data_block_service
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-power_service
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-registry_service
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-textservices_service
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-trust_service
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-uimode_service
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-user_service
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-vibrator_service
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-webviewupdate_service
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-wifi_service
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}:service_manager find;
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###
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### neverallow rules
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###
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# Receive or send uevent messages.
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neverallow untrusted_app domain:netlink_kobject_uevent_socket *;
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# Receive or send generic netlink messages
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neverallow untrusted_app domain:netlink_socket *;
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# Too much leaky information in debugfs. It's a security
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# best practice to ensure these files aren't readable.
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neverallow untrusted_app debugfs:file read;
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# Do not allow untrusted apps to register services.
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# Only trusted components of Android should be registering
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# services.
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neverallow untrusted_app service_manager_type:service_manager add;
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# Do not allow untrusted_apps to connect to the property service
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# or set properties. b/10243159
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neverallow untrusted_app property_socket:sock_file write;
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neverallow untrusted_app init:unix_stream_socket connectto;
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neverallow untrusted_app property_type:property_service set;
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# Allow verifier to access staged apks.
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allow untrusted_app { apk_tmp_file apk_private_tmp_file }:dir r_dir_perms;
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allow untrusted_app { apk_tmp_file apk_private_tmp_file }:file r_file_perms;
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