2013-07-12 16:33:29 -07:00
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###
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### Untrusted apps.
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###
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### This file defines the rules for untrusted apps. An "untrusted
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### app" is an APP with UID between APP_AID (10000)
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### and AID_ISOLATED_START (99000).
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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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untrusted_app.te / isolated_app.te / app.te first pass
This is my first attempt at creating an enforcing SELinux domain for
apps, untrusted_apps, and isolated_apps. Much of these rules are based on the
contents of app.te as of commit 11153ef34928ab9d13658606695cba192aa03e21
with extensive modifications, some of which are included below.
* Allow communication with netd/dnsproxyd, to allow netd to handle
dns requests
* Allow binder communications with the DNS server
* Allow binder communications with surfaceflinger
* Allow an app to bind to tcp/udp ports
* Allow all domains to read files from the root partition, assuming
the DAC allows access.
In addition, I added a bunch of "neverallow" rules, to assert that
certain capabilities are never added.
This change has a high probability of breaking someone, somewhere.
If it does, then I'm happy to fix the breakage, rollback this change,
or put untrusted_app into permissive mode.
Change-Id: I83f220135d20ab4f70fbd7be9401b5b1def1fe35
2013-07-12 18:45:56 -07:00
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allow untrusted_app tun_device:chr_file rw_file_perms;
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# Internal SDCard rw access.
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allow untrusted_app sdcard_internal:dir create_dir_perms;
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allow untrusted_app sdcard_internal:file create_file_perms;
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# External SDCard rw access.
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allow untrusted_app sdcard_external:dir create_dir_perms;
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allow untrusted_app sdcard_external:file create_file_perms;
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# ASEC
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allow untrusted_app asec_apk_file:dir { getattr };
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allow untrusted_app asec_apk_file:file r_file_perms;
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# Create listening tcp/udp sockets
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allow untrusted_app node_type:{ tcp_socket udp_socket } node_bind;
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allow untrusted_app self:{ tcp_socket udp_socket } create_socket_perms;
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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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allow untrusted_app devpts:chr_file rw_file_perms;
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