diff options
| author | Jiri Pirko <jiri@mellanox.com> | 2019-06-19 09:41:02 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-19 10:09:21 -0400 |
| commit | 82828b88f081a0084cd65f90a4a1d3652f5adb66 (patch) | |
| tree | afc4e3e5b7572586a0176097f82106370ba7895b /net/core/flow_dissector.c | |
| parent | 39f5886032380e49119786b23274b38e9b3aa99c (diff) | |
flow_dissector: add support for ingress ifindex dissection
Add new key meta that contains ingress ifindex value and add a function
to dissect this from skb. The key and function is prepared to cover
other potential skb metadata values dissection.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/flow_dissector.c')
| -rw-r--r-- | net/core/flow_dissector.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c index c0559af9e5e5..01ad60b5aa75 100644 --- a/net/core/flow_dissector.c +++ b/net/core/flow_dissector.c @@ -199,6 +199,22 @@ __be32 __skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto, } EXPORT_SYMBOL(__skb_flow_get_ports); +void skb_flow_dissect_meta(const struct sk_buff *skb, + struct flow_dissector *flow_dissector, + void *target_container) +{ + struct flow_dissector_key_meta *meta; + + if (!dissector_uses_key(flow_dissector, FLOW_DISSECTOR_KEY_META)) + return; + + meta = skb_flow_dissector_target(flow_dissector, + FLOW_DISSECTOR_KEY_META, + target_container); + meta->ingress_ifindex = skb->skb_iif; +} +EXPORT_SYMBOL(skb_flow_dissect_meta); + static void skb_flow_dissect_set_enc_addr_type(enum flow_dissector_key_id type, struct flow_dissector *flow_dissector, |