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authorGovindarajulu Varadarajan <_govind@gmx.com>2014-06-23 16:07:58 +0530
committerDavid S. Miller <davem@davemloft.net>2014-06-23 14:32:19 -0700
commite0f31d8498676fda36289603a054d0d490aa2679 (patch)
tree372fb95e9ec90a83794bf5bb3747f80664bb8e55 /net/core
parenteef929622b0ce86fcdaf6bd9ab6d7502470728d5 (diff)
downloadlinux-e0f31d8498676fda36289603a054d0d490aa2679.tar.bz2
flow_keys: Record IP layer protocol in skb_flow_dissect()
skb_flow_dissect() dissects only transport header type in ip_proto. It dose not give any information about IPv4 or IPv6. This patch adds new member, n_proto, to struct flow_keys. Which records the IP layer type. i.e IPv4 or IPv6. This can be used in netdev->ndo_rx_flow_steer driver function to dissect flow. Adding new member to flow_keys increases the struct size by around 4 bytes. This causes BUILD_BUG_ON(sizeof(qcb->data) < sz); to fail in qdisc_cb_private_validate() So increase data size by 4 Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/flow_dissector.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 107ed12a5323..c2b53c1b21d2 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -175,6 +175,7 @@ ipv6:
break;
}
+ flow->n_proto = proto;
flow->ip_proto = ip_proto;
flow->ports = skb_flow_get_ports(skb, nhoff, ip_proto);
flow->thoff = (u16) nhoff;