| commit | d8d7218ad842e18fc6976b87c08ed749e8d56313 | [log] [tgz] |
|---|---|---|
| author | Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> | Fri Jul 06 11:49:00 2018 +0900 |
| committer | Alexei Starovoitov <ast@kernel.org> | Sat Jul 07 15:25:35 2018 -0700 |
| tree | 57cdc7f8d2c55996b0ca1b6e74a8de8fa997b29f | |
| parent | 4fb126cbcbd6870851f0b3ba503e8ec0e66b9dd5 [diff] |
xdp: XDP_REDIRECT should check IFF_UP and MTU
Otherwise we end up with attempting to send packets from down devices
or to send oversized packets, which may cause unexpected driver/device
behaviour. Generic XDP has already done this check, so reuse the logic
in native XDP.
Fixes: 814abfabef3c ("xdp: add bpf_redirect helper function")
Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>