2dc4acf33b
Add a create_pty() macro that allows a domain to create and use its own ptys, isolated from the ptys of any other domain, and use that macro for untrusted_app. This permits the use of a pty by apps without opening up access to ptys created by any other domain on the system. Change-Id: I5d96ce4d1b26073d828e13eb71c48d1e14ce7d6b Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
48 lines
1.7 KiB
Text
48 lines
1.7 KiB
Text
###
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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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permissive untrusted_app;
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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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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 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 accept listen };
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# Bind to a particular hostname/address/interface (e.g., localhost) instead of
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# ANY. Normally, apps should not be listening on all interfaces.
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allow untrusted_app port:{ tcp_socket udp_socket } name_bind;
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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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