diff options
| author | John Fastabend <john.fastabend@gmail.com> | 2018-03-28 12:49:15 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-03-30 00:09:43 +0200 |
| commit | 8934ce2fd08171e8605f7fada91ee7619fe17ab8 (patch) | |
| tree | 9a75574aadb3cfad15d09bffa0fe9eb6cbd9a03d /include/net | |
| parent | 22527437e0a0c96ee3153e9d0382942b0fd4f9dd (diff) | |
bpf: sockmap redirect ingress support
Add support for the BPF_F_INGRESS flag in sk_msg redirect helper.
To do this add a scatterlist ring for receiving socks to check
before calling into regular recvmsg call path. Additionally, because
the poll wakeup logic only checked the skb recv queue we need to
add a hook in TCP stack (similar to write side) so that we have
a way to wake up polling socks when a scatterlist is redirected
to that sock.
After this all that is needed is for the redirect helper to
push the scatterlist into the psock receive queue.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/sock.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 709311132d4c..b8ff435fa96e 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1085,6 +1085,7 @@ struct proto { #endif bool (*stream_memory_free)(const struct sock *sk); + bool (*stream_memory_read)(const struct sock *sk); /* Memory pressure */ void (*enter_memory_pressure)(struct sock *sk); void (*leave_memory_pressure)(struct sock *sk); |