50563c0367
Vendor and system components are only allowed to share files by
passing open FDs over HIDL. Ban all directory access and all file
accesses other than what can be applied to an open FD such as
ioctl/stat/read/write/append.
This commit asserts that core components marked with attribute
coredomain may only access core data types marked with attribute
core_data_file_type.
A temporary exemption is granted to domains that currently rely on
access.
(cherry picked from commit cd97e71084)
Bug: 34980020
Test: build Marlin policy
Change-Id: I2f0442f2628fbac1f2f7aa5ddf2a13e16b2546cc
29 lines
1 KiB
Text
29 lines
1 KiB
Text
type dhcp, domain, domain_deprecated;
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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:capability { 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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# 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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