44328c061d
Clatd is effectively an internal implementation detail of netd.
It exists as a separate daemon only because this gives us a better
security boundary. Netd is it's only launcher (via fork/exec) and
killer.
Generated via:
{ echo; cat public/clatd.te; echo; } >> private/clatd.te
rm -f public/clatd.te
plus a minor edit to put coredomain after clatd type declaration
and required changes to move netd's clatd use out of public into private.
Test: build and install on non-aosp test device, atest, check for selinux clat denials
Change-Id: I80f110b75828f3657986e64650ef9e0f9877a07c
37 lines
1.5 KiB
Plaintext
37 lines
1.5 KiB
Plaintext
# 464xlat daemon
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type clatd, domain, coredomain;
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type clatd_exec, system_file_type, exec_type, file_type;
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net_domain(clatd)
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r_dir_file(clatd, proc_net_type)
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userdebug_or_eng(`
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auditallow clatd proc_net_type:{ dir file lnk_file } { getattr open read };
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')
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# Access objects inherited from netd.
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allow clatd netd:fd use;
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allow clatd netd:fifo_file { read write };
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# TODO: Check whether some or all of these sockets should be close-on-exec.
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allow clatd netd:netlink_kobject_uevent_socket { read write };
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allow clatd netd:netlink_nflog_socket { read write };
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allow clatd netd:netlink_route_socket { read write };
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allow clatd netd:udp_socket { read write };
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allow clatd netd:unix_stream_socket { read write };
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allow clatd netd:unix_dgram_socket { read write };
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allow clatd self:global_capability_class_set { net_admin net_raw setuid setgid };
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# clatd calls mmap(MAP_LOCKED) with a 1M buffer. MAP_LOCKED first checks
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# capable(CAP_IPC_LOCK), and then checks to see the requested amount is
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# under RLIMIT_MEMLOCK. If the latter check succeeds clatd won't have
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# needed CAP_IPC_LOCK. But this is not guaranteed to succeed on all devices
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# so we permit any requests we see from clatd asking for this capability.
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# See https://android-review.googlesource.com/127940 and
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# https://b.corp.google.com/issues/21736319
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allow clatd self:global_capability_class_set ipc_lock;
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allow clatd self:netlink_route_socket nlmsg_write;
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allow clatd self:{ packet_socket rawip_socket } create_socket_perms_no_ioctl;
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allow clatd tun_device:chr_file rw_file_perms;
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