commit 5976c5f45c40588b90dda173ded9010917f8f45e
author Simon Horman <simon.horman@netronome.com> Thu Nov 03 13:24:21 2016 +0100
committer David S. Miller <davem@davemloft.net> Thu Nov 03 16:26:39 2016 -0400
tree 33e34646215212d22c862a3ee8005ab9c1736bfb
parent 5e5f89e70b29153cb28011f0cc47984bfcc3bef4

net/sched: cls_flower: Support matching on SCTP ports

Support matching on SCTP ports in the same way that matching
on TCP and UDP ports is already supported.

Example usage:

tc qdisc add dev eth0 ingress

tc filter add dev eth0 protocol ip parent ffff: \
        flower indev eth0 ip_proto sctp dst_port 80 \
        action drop

Signed-off-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/cls_flower.c

diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index a8fb1ca..db4cd88 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -344,6 +344,10 @@
 	[TCA_FLOWER_KEY_TCP_DST_MASK]	= { .type = NLA_U16 },
 	[TCA_FLOWER_KEY_UDP_SRC_MASK]	= { .type = NLA_U16 },
 	[TCA_FLOWER_KEY_UDP_DST_MASK]	= { .type = NLA_U16 },
+	[TCA_FLOWER_KEY_SCTP_SRC_MASK]	= { .type = NLA_U16 },
+	[TCA_FLOWER_KEY_SCTP_DST_MASK]	= { .type = NLA_U16 },
+	[TCA_FLOWER_KEY_SCTP_SRC]	= { .type = NLA_U16 },
+	[TCA_FLOWER_KEY_SCTP_DST]	= { .type = NLA_U16 },
 };
 
 static void fl_set_key_val(struct nlattr **tb,
@@ -453,6 +457,13 @@
 		fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_UDP_DST,
 			       &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
 			       sizeof(key->tp.dst));
+	} else if (key->basic.ip_proto == IPPROTO_SCTP) {
+		fl_set_key_val(tb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
+			       &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
+			       sizeof(key->tp.src));
+		fl_set_key_val(tb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
+			       &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
+			       sizeof(key->tp.dst));
 	}
 
 	if (tb[TCA_FLOWER_KEY_ENC_IPV4_SRC] ||
@@ -897,6 +908,14 @@
 				  &mask->tp.dst, TCA_FLOWER_KEY_UDP_DST_MASK,
 				  sizeof(key->tp.dst))))
 		goto nla_put_failure;
+	else if (key->basic.ip_proto == IPPROTO_SCTP &&
+		 (fl_dump_key_val(skb, &key->tp.src, TCA_FLOWER_KEY_SCTP_SRC,
+				  &mask->tp.src, TCA_FLOWER_KEY_SCTP_SRC_MASK,
+				  sizeof(key->tp.src)) ||
+		  fl_dump_key_val(skb, &key->tp.dst, TCA_FLOWER_KEY_SCTP_DST,
+				  &mask->tp.dst, TCA_FLOWER_KEY_SCTP_DST_MASK,
+				  sizeof(key->tp.dst))))
+		goto nla_put_failure;
 
 	if (key->enc_control.addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS &&
 	    (fl_dump_key_val(skb, &key->enc_ipv4.src,