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net/sched: introduce Match-all classifier

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The matchall classifier matches every packet and allows the user to apply
actions on it. This filter is very useful in usecases where every packet
should be matched, for example, packet mirroring (SPAN) can be setup very
easily using that filter.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2016-07-21 12:03:11 +02:00 • committed by David S. Miller
parent ded821c8d3
commit bf3994d2ed
4 changed files with 270 additions and 0 deletions
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11
include/uapi/linux/pkt_cls.h
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@ -433,6 +433,17 @@ enum {
#define TCA_FLOWER_MAX (__TCA_FLOWER_MAX - 1)
/* Match-all classifier */
enum {
TCA_MATCHALL_UNSPEC,
TCA_MATCHALL_CLASSID,
TCA_MATCHALL_ACT,
__TCA_MATCHALL_MAX,
};
#define TCA_MATCHALL_MAX (__TCA_MATCHALL_MAX - 1)
/* Extended Matches */
struct tcf_ematch_tree_hdr {