diff options
| author | Willem de Bruijn <willemb@google.com> | 2015-08-15 05:31:34 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-08-18 00:22:47 +0300 |
| commit | 47dceb8ecdc1c3ad1818dfea3d659a05b74c3fc2 (patch) | |
| tree | 6329539935535b2b5ed438612464e168b02f03ce /include/uapi/linux/if_packet.h | |
| parent | a1c234f95cae2d293047bb6c36e7a4840dbac815 (diff) | |
| download | linux-47dceb8ecdc1c3ad1818dfea3d659a05b74c3fc2.tar.xz | |
packet: add classic BPF fanout mode
Add fanout mode PACKET_FANOUT_CBPF that accepts a classic BPF program
to select a socket.
This avoids having to keep adding special case fanout modes. One
example use case is application layer load balancing. The QUIC
protocol, for instance, encodes a connection ID in UDP payload.
Also add socket option SOL_PACKET/PACKET_FANOUT_DATA that updates data
associated with the socket group. Fanout mode PACKET_FANOUT_CBPF is the
only user so far.
Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/if_packet.h')
| -rw-r--r-- | include/uapi/linux/if_packet.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/if_packet.h b/include/uapi/linux/if_packet.h index d3d715f8c88f..a4bb16fa822e 100644 --- a/include/uapi/linux/if_packet.h +++ b/include/uapi/linux/if_packet.h @@ -55,6 +55,7 @@ struct sockaddr_ll { #define PACKET_TX_HAS_OFF 19 #define PACKET_QDISC_BYPASS 20 #define PACKET_ROLLOVER_STATS 21 +#define PACKET_FANOUT_DATA 22 #define PACKET_FANOUT_HASH 0 #define PACKET_FANOUT_LB 1 @@ -62,6 +63,7 @@ struct sockaddr_ll { #define PACKET_FANOUT_ROLLOVER 3 #define PACKET_FANOUT_RND 4 #define PACKET_FANOUT_QM 5 +#define PACKET_FANOUT_CBPF 6 #define PACKET_FANOUT_FLAG_ROLLOVER 0x1000 #define PACKET_FANOUT_FLAG_DEFRAG 0x8000 |