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Commit 459d153d authored by Pieter Jansen van Vuuren's avatar Pieter Jansen van Vuuren Committed by David S. Miller
Browse files

net/sched: cls_flower: Add support to handle first frag as match field 



Allow setting firstfrag as matching option in tc flower classifier.

 # tc filter add dev eth0 protocol ip parent ffff: \
     flower indev eth0 \
        ip_flags firstfrag
     action mirred egress redirect dev eth1

Signed-off-by: default avatarPieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Signed-off-by: default avatarSimon Horman <simon.horman@netronome.com>
Reviewed-by: default avatarJakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 08a24239

include/uapi/linux/pkt_cls.h

+1 −0
Original line number Diff line number Diff line
@@ -475,6 +475,7 @@ enum { 


enum {

	TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT = (1 << 0),

	TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST = (1 << 1),

};



/* Match-all classifier */

net/sched/cls_flower.c

+6 −0
Original line number Diff line number Diff line
@@ -511,6 +511,9 @@ static int fl_set_key_flags(struct nlattr **tb, 


	fl_set_key_flag(key, mask, flags_key, flags_mask,

			TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);

	fl_set_key_flag(key, mask, flags_key, flags_mask,

			TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,

			FLOW_DIS_FIRST_FRAG);



	return 0;

}
@@ -1130,6 +1133,9 @@ static int fl_dump_key_flags(struct sk_buff *skb, u32 flags_key, u32 flags_mask) 


	fl_get_key_flag(flags_key, flags_mask, &key, &mask,

			TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);

	fl_get_key_flag(flags_key, flags_mask, &key, &mask,

			TCA_FLOWER_KEY_FLAGS_FRAG_IS_FIRST,

			FLOW_DIS_FIRST_FRAG);



	_key = cpu_to_be32(key);

	_mask = cpu_to_be32(mask);