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tc: introduce Flower classifier

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This patch introduces a flow-based filter. So far, the very essential
packet fields are supported.

This patch is only the first step. There is a lot of potential performance
improvements possible to implement. Also a lot of features are missing
now. They will be addressed in follow-up patches.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko
2015-05-12 14:56:21 +02:00
committed by David S. Miller
parent 59346afe7a
commit 77b9900ef5
4 changed files with 729 additions and 0 deletions
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30
include/uapi/linux/pkt_cls.h
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@@ -409,6 +409,36 @@ enum {
#define TCA_BPF_MAX (__TCA_BPF_MAX - 1)
/* Flower classifier */
enum {
TCA_FLOWER_UNSPEC,
TCA_FLOWER_CLASSID,
TCA_FLOWER_INDEV,
TCA_FLOWER_ACT,
TCA_FLOWER_KEY_ETH_DST, /* ETH_ALEN */
TCA_FLOWER_KEY_ETH_DST_MASK, /* ETH_ALEN */
TCA_FLOWER_KEY_ETH_SRC, /* ETH_ALEN */
TCA_FLOWER_KEY_ETH_SRC_MASK, /* ETH_ALEN */
TCA_FLOWER_KEY_ETH_TYPE, /* be16 */
TCA_FLOWER_KEY_IP_PROTO, /* u8 */
TCA_FLOWER_KEY_IPV4_SRC, /* be32 */
TCA_FLOWER_KEY_IPV4_SRC_MASK, /* be32 */
TCA_FLOWER_KEY_IPV4_DST, /* be32 */
TCA_FLOWER_KEY_IPV4_DST_MASK, /* be32 */
TCA_FLOWER_KEY_IPV6_SRC, /* struct in6_addr */
TCA_FLOWER_KEY_IPV6_SRC_MASK, /* struct in6_addr */
TCA_FLOWER_KEY_IPV6_DST, /* struct in6_addr */
TCA_FLOWER_KEY_IPV6_DST_MASK, /* struct in6_addr */
TCA_FLOWER_KEY_TCP_SRC, /* be16 */
TCA_FLOWER_KEY_TCP_DST, /* be16 */
TCA_FLOWER_KEY_UDP_SRC, /* be16 */
TCA_FLOWER_KEY_UDP_DST, /* be16 */
__TCA_FLOWER_MAX,
};
#define TCA_FLOWER_MAX (__TCA_FLOWER_MAX - 1)
/* Extended Matches */
struct tcf_ematch_tree_hdr {

10
net/sched/Kconfig
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@@ -477,6 +477,16 @@ config NET_CLS_BPF
To compile this code as a module, choose M here: the module will
be called cls_bpf.
config NET_CLS_FLOWER
tristate "Flower classifier"
select NET_CLS
---help---
If you say Y here, you will be able to classify packets based on
a configurable combination of packet keys and masks.
To compile this code as a module, choose M here: the module will
be called cls_flower.
config NET_EMATCH
bool "Extended Matches"
select NET_CLS

1
net/sched/Makefile
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@@ -56,6 +56,7 @@ obj-$(CONFIG_NET_CLS_BASIC) += cls_basic.o
obj-$(CONFIG_NET_CLS_FLOW) += cls_flow.o
obj-$(CONFIG_NET_CLS_CGROUP) += cls_cgroup.o
obj-$(CONFIG_NET_CLS_BPF) += cls_bpf.o
obj-$(CONFIG_NET_CLS_FLOWER) += cls_flower.o
obj-$(CONFIG_NET_EMATCH) += ematch.o
obj-$(CONFIG_NET_EMATCH_CMP) += em_cmp.o
obj-$(CONFIG_NET_EMATCH_NBYTE) += em_nbyte.o

688
net/sched/cls_flower.c Normal file
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