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net/sched: cls_flower: Support matching on ARP

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Support matching on ARP operation, and hardware and protocol addresses
for Ethernet hardware and IPv4 protocol addresses.

Example usage:

tc qdisc add dev eth0 ingress

tc filter add dev eth0 protocol arp parent ffff: flower indev eth0 \
	arp_op request arp_sip 10.0.0.1 action drop
tc filter add dev eth0 protocol rarp parent ffff: flower indev eth0 \
	arp_op reply arp_tha 52:54:3f:00:00:00/24 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 2017-01-11 14:05:43 +01:00 • committed by David S. Miller
parent 55733350e5
commit 99d31326cb
2 changed files with 62 additions and 0 deletions
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11
include/uapi/linux/pkt_cls.h
View file

@ -416,6 +416,17 @@ enum {
TCA_FLOWER_KEY_ICMPV6_TYPE, /* u8 */
TCA_FLOWER_KEY_ICMPV6_TYPE_MASK,/* u8 */
TCA_FLOWER_KEY_ARP_SIP, /* be32 */
TCA_FLOWER_KEY_ARP_SIP_MASK, /* be32 */
TCA_FLOWER_KEY_ARP_TIP, /* be32 */
TCA_FLOWER_KEY_ARP_TIP_MASK, /* be32 */
TCA_FLOWER_KEY_ARP_OP, /* u8 */
TCA_FLOWER_KEY_ARP_OP_MASK, /* u8 */
TCA_FLOWER_KEY_ARP_SHA, /* ETH_ALEN */
TCA_FLOWER_KEY_ARP_SHA_MASK, /* ETH_ALEN */
TCA_FLOWER_KEY_ARP_THA, /* ETH_ALEN */
TCA_FLOWER_KEY_ARP_THA_MASK, /* ETH_ALEN */
__TCA_FLOWER_MAX,
};