platform_system_sepolicy/private/isolated_app.te

###
### isolated_apps.
###
### This file defines the rules for isolated apps that does not wish to use
### service managers and does not require extra computational resources.
###

typeattribute isolated_app coredomain;

app_domain(isolated_app)
isolated_app_domain(isolated_app)

allow isolated_app webviewupdate_service:service_manager find;

# Allow access to network sockets received over IPC. New socket creation is not
# permitted.
allow isolated_app { ephemeral_app priv_app untrusted_app_all }:{ tcp_socket udp_socket } { rw_socket_perms_no_ioctl };

# b/32896414: Allow accessing sdcard file descriptors passed to isolated_apps
# by other processes. Open should never be allowed, and is blocked by
# neverallow rules in isolated_app_all attribute.
# media_rw_data_file is included for sdcardfs, and can be removed if sdcardfs
# is modified to change the secontext when accessing the lower filesystem.
allow isolated_app { sdcard_type fuse media_rw_data_file }:file { read write append getattr lock map };

# For webviews, isolated_app processes can be forked from the webview_zygote
# in addition to the zygote. Allow access to resources inherited from the
# webview_zygote process. These rules are specialized copies of the ones in app.te.
# Inherit FDs from the webview_zygote.
allow isolated_app webview_zygote:fd use;
# Notify webview_zygote of child death.
allow isolated_app webview_zygote:process sigchld;
# Inherit logd write socket.
allow isolated_app webview_zygote:unix_dgram_socket write;
# Read system properties managed by webview_zygote.
allow isolated_app webview_zygote_tmpfs:file read;