# Input selectors: # isSystemServer (boolean) # isEphemeralApp (boolean) # isV2App (boolean) # isOwner (boolean) # user (string) # seinfo (string) # name (string) # path (string) # isPrivApp (boolean) # minTargetSdkVersion (unsigned integer) # isSystemServer=true can only be used once. # An unspecified isSystemServer defaults to false. # isEphemeralApp=true will match apps marked by PackageManager as Ephemeral # isV2App=true will match apps in the v2 app sandbox. # isOwner=true will only match for the owner/primary user. # isOwner=false will only match for secondary users. # If unspecified, the entry can match either case. # An unspecified string selector will match any value. # A user string selector that ends in * will perform a prefix match. # user=_app will match any regular app UID. # user=_isolated will match any isolated service UID. # isPrivApp=true will only match for applications preinstalled in # /system/priv-app. # minTargetSdkVersion will match applications with a targetSdkVersion # greater than or equal to the specified value. If unspecified, # it has a default value of 0. # All specified input selectors in an entry must match (i.e. logical AND). # Matching is case-insensitive. # # Precedence rules (see external/selinux/libselinux/src/android/android.c seapp_context_cmp()): # (1) isSystemServer=true before isSystemServer=false. # (2) Specified isEphemeralApp= before unspecified isEphemeralApp= boolean. # (3) Specified isV2App= before unspecified isV2App= boolean. # (4) Specified isOwner= before unspecified isOwner= boolean. # (5) Specified user= string before unspecified user= string. # (6) Fixed user= string before user= prefix (i.e. ending in *). # (7) Longer user= prefix before shorter user= prefix. # (8) Specified seinfo= string before unspecified seinfo= string. # ':' character is reserved and may not be used. # (9) Specified name= string before unspecified name= string. # (10) Specified path= string before unspecified path= string. # (11) Specified isPrivApp= before unspecified isPrivApp= boolean. # (12) Higher value of minTargetSdkVersion= before lower value of minTargetSdkVersion= # integer. Note that minTargetSdkVersion= defaults to 0 if unspecified. # # Outputs: # domain (string) # type (string) # levelFrom (string; one of none, all, app, or user) # level (string) # Only entries that specify domain= will be used for app process labeling. # Only entries that specify type= will be used for app directory labeling. # levelFrom=user is only supported for _app or _isolated UIDs. # levelFrom=app or levelFrom=all is only supported for _app UIDs. # level may be used to specify a fixed level for any UID. # # # Neverallow Assertions # Additional compile time assertion checks can be added as well. The assertion # rules are lines beginning with the keyword neverallow. Full support for PCRE # regular expressions exists on all input and output selectors. Neverallow # rules are never output to the built seapp_contexts file. Like all keywords, # neverallows are case-insensitive. A neverallow is asserted when all key value # inputs are matched on a key value rule line. # # only the system server can be in system_server domain neverallow isSystemServer=false domain=system_server neverallow isSystemServer="" domain=system_server # system domains should never be assigned outside of system uid neverallow user=((?!system).)* domain=system_app neverallow user=((?!system).)* type=system_app_data_file # anything with a non-known uid with a specified name should have a specified seinfo neverallow user=_app name=.* seinfo="" neverallow user=_app name=.* seinfo=default # neverallow shared relro to any other domain # and neverallow any other uid into shared_relro neverallow user=shared_relro domain=((?!shared_relro).)* neverallow user=((?!shared_relro).)* domain=shared_relro # neverallow non-isolated uids into isolated_app domain # and vice versa neverallow user=_isolated domain=((?!isolated_app).)* neverallow user=((?!_isolated).)* domain=isolated_app # uid shell should always be in shell domain, however non-shell # uid's can be in shell domain neverallow user=shell domain=((?!shell).)* # only the package named com.android.shell can run in the shell domain neverallow domain=shell name=((?!com\.android\.shell).)* neverallow user=shell name=((?!com\.android\.shell).)* # Ephemeral Apps must run in the ephemeral_app domain neverallow isEphemeralApp=true domain=((?!ephemeral_app).)* isSystemServer=true domain=system_server user=_app seinfo=platform name=com.android.traceur domain=traceur_app type=app_data_file levelFrom=all user=system seinfo=platform domain=system_app type=system_app_data_file user=bluetooth seinfo=platform domain=bluetooth type=bluetooth_data_file user=nfc seinfo=platform domain=nfc type=nfc_data_file user=secure_element seinfo=platform domain=secure_element levelFrom=all user=radio seinfo=platform domain=radio type=radio_data_file user=shared_relro domain=shared_relro user=shell seinfo=platform domain=shell name=com.android.shell type=shell_data_file user=webview_zygote seinfo=webview_zygote domain=webview_zygote user=_isolated domain=isolated_app levelFrom=all user=_app seinfo=media domain=mediaprovider name=android.process.media type=app_data_file levelFrom=user user=_app seinfo=platform domain=platform_app type=app_data_file levelFrom=user user=_app isV2App=true isEphemeralApp=true domain=ephemeral_app type=app_data_file levelFrom=all user=_app isPrivApp=true domain=priv_app type=app_data_file levelFrom=user user=_app minTargetSdkVersion=28 domain=untrusted_app type=app_data_file levelFrom=all user=_app minTargetSdkVersion=26 domain=untrusted_app_27 type=app_data_file levelFrom=user user=_app domain=untrusted_app_25 type=app_data_file levelFrom=user