68ef8c070e
To better record the network traffic stats for each network interface.
We use xt_bpf netfilter module to do the iface stats accounting instead
of the cgroup bpf filter we currently use for per uid stats accounting.
The xt_bpf module will take pinned eBPF program as iptables rule and run
the program when packet pass through the netfilter hook. To setup the
iptables rules. netd need to be able to access bpf filesystem and run the
bpf program at boot time. The program used will still be created and
pinned by the bpfloader process.
Test: With selinux enforced, run "iptables -L -t raw" should show the
xt_bpf related rule present in bw_raw_PREROUTING chain.
Bug: 72111305
Change-Id: I11efe158d6bd5499df6adf15e8123a76cd67de04
(cherry picked from aosp commit 5c95c16841)
15 lines
445 B
Text
15 lines
445 B
Text
typeattribute netd coredomain;
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init_daemon_domain(netd)
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# Allow netd to spawn dnsmasq in it's own domain
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domain_auto_trans(netd, dnsmasq_exec, dnsmasq)
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# Allow netd to start clatd in its own domain
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domain_auto_trans(netd, clatd_exec, clatd)
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# Allow netd to start bpfloader_exec in its own domain
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domain_auto_trans(netd, bpfloader_exec, bpfloader)
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# give netd permission to setup iptables rule with xt_bpf
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allow netd bpfloader:bpf prog_run;
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