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net/sched: cls_flower: Support matching on SCTP ports

Browse source 
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>
This commit is contained in:
Simon Horman 2016-11-03 13:24:21 +01:00 committed by David S. Miller
parent 5e5f89e70b
commit 5976c5f45c
2 changed files with 24 additions and 0 deletions
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5
include/uapi/linux/pkt_cls.h
View file

@ -447,6 +447,11 @@ enum {
TCA_FLOWER_KEY_TCP_DST_MASK, /* be16 */
TCA_FLOWER_KEY_UDP_SRC_MASK, /* be16 */
TCA_FLOWER_KEY_UDP_DST_MASK, /* be16 */
TCA_FLOWER_KEY_SCTP_SRC_MASK, /* be16 */
TCA_FLOWER_KEY_SCTP_DST_MASK, /* be16 */
TCA_FLOWER_KEY_SCTP_SRC, /* be16 */
TCA_FLOWER_KEY_SCTP_DST, /* be16 */
__TCA_FLOWER_MAX,
};

19
net/sched/cls_flower.c
View file

@ -344,6 +344,10 @@ static const struct nla_policy fl_policy[TCA_FLOWER_MAX + 1] = {
[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 @@ static int fl_set_key(struct net *net, struct nlattr **tb,
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 @@ static int fl_dump(struct net *net, struct tcf_proto *tp, unsigned long fh,
&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,