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wireguard: device: use icmp_ndo_send helper
Jason A. Donenfeld authored

Because wireguard is calling icmp from network device context, it should
use the ndo helper so that the rate limiting applies correctly.  This
commit adds a small test to the wireguard test suite to ensure that the
new functions continue doing the right thing in the context of
wireguard. It does this by setting up a condition that will definately
evoke an icmp error message from the driver, but along a nat'd path.
Signed-off-by: default avatarJason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
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