9b2e0cbeea
In kernel 4.7, the capability and capability2 classes were split apart
from cap_userns and cap2_userns (see kernel commit
8e4ff6f228e4722cac74db716e308d1da33d744f). Since then, Android cannot be
run in a container with SELinux in enforcing mode.
This change applies the existing capability rules to user namespaces as
well as the root namespace so that Android running in a container
behaves the same on pre- and post-4.7 kernels.
This is essentially:
1. New global_capability_class_set and global_capability2_class_set
that match capability+cap_userns and capability2+cap2_userns,
respectively.
2. s/self:capability/self:global_capability_class_set/g
3. s/self:capability2/self:global_capability2_class_set/g
4. Add cap_userns and cap2_userns to the existing capability_class_set
so that it covers all capabilities. This set was used by several
neverallow and dontaudit rules, and I confirmed that the new
classes are still appropriate.
Test: diff new policy against old and confirm that all new rules add
only cap_userns or cap2_userns;
Boot ARC++ on a device with the 4.12 kernel.
Bug: crbug.com/754831
Change-Id: I4007eb3a2ecd01b062c4c78d9afee71c530df95f
28 lines
1 KiB
Text
28 lines
1 KiB
Text
typeattribute netutils_wrapper coredomain;
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r_dir_file(netutils_wrapper, system_file);
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# For netutils (ip, iptables, tc)
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allow netutils_wrapper self:global_capability_class_set net_raw;
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allow netutils_wrapper system_file:file { execute execute_no_trans };
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allow netutils_wrapper proc_net:file { open read getattr };
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allow netutils_wrapper self:rawip_socket create_socket_perms;
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allow netutils_wrapper self:udp_socket create_socket_perms;
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allow netutils_wrapper self:global_capability_class_set net_admin;
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# ip utils need everything but ioctl
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allow netutils_wrapper self:netlink_route_socket ~ioctl;
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allow netutils_wrapper self:netlink_xfrm_socket ~ioctl;
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# For netutils (ndc) to be able to talk to netd
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allow netutils_wrapper netd_socket:sock_file { open getattr read write append };
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allow netutils_wrapper netd:unix_stream_socket { read getattr connectto };
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# For /data/misc/net access to ndc and ip
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r_dir_file(netutils_wrapper, net_data_file)
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domain_auto_trans({
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domain
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-coredomain
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-appdomain
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}, netutils_wrapper_exec, netutils_wrapper)
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