5e37271df8
system_file_type is a new attribute used to identify files which exist on the /system partition. It's useful for allow rules in init, which are based off of a blacklist of writable files. Additionally, it's useful for constructing neverallow rules to prevent regressions. Additionally, add commented out tests which enforce that all files on the /system partition have the system_file_type attribute. These tests will be uncommented in a future change after all the device-specific policies are cleaned up. Test: Device boots and no obvious problems. Change-Id: Id9bae6625f042594c8eba74ca712abb09702c1e5
31 lines
1.1 KiB
Plaintext
31 lines
1.1 KiB
Plaintext
type dhcp, domain;
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type dhcp_exec, system_file_type, 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_type: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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