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dontaudit clatd self:capability ipc_lock

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clatd calls mmap(MAP_LOCKED) with a 1M buffer. MAP_LOCKED first checks
capable(CAP_IPC_LOCK), and then checks to see the requested amount is
under RLIMIT_MEMLOCK. The latter check succeeds. As a result, clatd
does not need CAP_IPC_LOCK, so we suppress any denials we see
from clatd asking for this capability.
See https://android-review.googlesource.com/127940

Suppresses the following denial:
  type=1400 audit(1424916750.163:7): avc: denied { ipc_lock } for pid=3458 comm="clatd" capability=14 scontext=u:r:clatd:s0 tcontext=u:r:clatd:s0 tclass=capability

Change-Id: Ica108f66010dfc6a5431efa0b4e58f6a784672d1
This commit is contained in:
Nick Kralevich 2015-02-26 16:49:15 -08:00
parent d99ea5a8af
commit b4c4424c99
1 changed files with 8 additions and 0 deletions
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clatd.te
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@ -17,6 +17,14 @@ allow clatd netd:unix_dgram_socket { read write };
allow clatd self:capability { net_admin net_raw setuid setgid };
# clatd calls mmap(MAP_LOCKED) with a 1M buffer. MAP_LOCKED first checks
# capable(CAP_IPC_LOCK), and then checks to see the requested amount is
# under RLIMIT_MEMLOCK. The latter check succeeds. As a result, clatd
# does not need CAP_IPC_LOCK, so we suppress any denials we see
# from clatd asking for this capability.
# See https://android-review.googlesource.com/127940
dontaudit clatd self:capability ipc_lock;
allow clatd self:netlink_route_socket nlmsg_write;
allow clatd self:{ packet_socket rawip_socket tun_socket } create_socket_perms;
allow clatd tun_device:chr_file rw_file_perms;