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
31 lines
1.1 KiB
Plaintext
31 lines
1.1 KiB
Plaintext
type dhcp, domain;
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type dhcp_exec, exec_type, file_type;
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net_domain(dhcp)
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allow dhcp cgroup:dir { create write add_name };
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allow dhcp self:global_capability_class_set { setgid setuid net_admin net_raw net_bind_service };
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allow dhcp self:packet_socket create_socket_perms_no_ioctl;
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allow dhcp self:netlink_route_socket nlmsg_write;
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allow dhcp shell_exec:file rx_file_perms;
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allow dhcp system_file:file rx_file_perms;
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not_full_treble(`allow dhcp vendor_file:file rx_file_perms;')
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# dhcpcd runs dhcpcd-hooks/*, which runs getprop / setprop (toolbox_exec)
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allow dhcp toolbox_exec:file rx_file_perms;
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# For /proc/sys/net/ipv4/conf/*/promote_secondaries
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allow dhcp proc_net:file write;
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set_prop(dhcp, dhcp_prop)
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set_prop(dhcp, pan_result_prop)
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allow dhcp dhcp_data_file:dir create_dir_perms;
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allow dhcp dhcp_data_file:file create_file_perms;
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# PAN connections
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allow dhcp netd:fd use;
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allow dhcp netd:fifo_file rw_file_perms;
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allow dhcp netd:{ dgram_socket_class_set unix_stream_socket } { read write };
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allow dhcp netd:{ netlink_kobject_uevent_socket netlink_route_socket netlink_nflog_socket } { read write };
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