8a22477541
clatd's environment may not have a sufficiently large memlock ulimit; it needs >=1MB but values much lower can be encountered. The mmap() is performed while clatd is still root, before dropping privileges; allow this to succeed. Bug: 21736319 Change-Id: I8171e077046566924c769e855144ae5fac634d4c
31 lines
1.3 KiB
Text
31 lines
1.3 KiB
Text
# 464xlat daemon
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type clatd, domain;
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type clatd_exec, exec_type, file_type;
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net_domain(clatd)
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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:capability { 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:capability 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 tun_socket } create_socket_perms;
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allow clatd tun_device:chr_file rw_file_perms;
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