net: tc_act: add skbedit_ptype helper functions (77feb4ee) · Commits · 戴 / test

The tc_act header file contains an inline function that checks if an action is changing the skb mark of a packet and a further function to extract the mark. Add similar functions to check for and get skbedit actions that modify the packet type of the skb. Signed-off-by:

John Hurley <john.hurley@netronome.com> Reviewed-by:

Simon Horman <simon.horman@netronome.com> Reviewed-by:

Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:

David S. Miller <davem@davemloft.net>

include/net/tc_act/tc_skbedit.h

+27 −0

Original line number	Diff line number	Diff line
		@@ -54,4 +54,31 @@ static inline u32 tcf_skbedit_mark(const struct tc_action *a)
		return mark;
		}

		/* Return true iff action is ptype */
		static inline bool is_tcf_skbedit_ptype(const struct tc_action *a)
		{
		#ifdef CONFIG_NET_CLS_ACT
		u32 flags;

		if (a->ops && a->ops->id == TCA_ID_SKBEDIT) {
		rcu_read_lock();
		flags = rcu_dereference(to_skbedit(a)->params)->flags;
		rcu_read_unlock();
		return flags == SKBEDIT_F_PTYPE;
		}
		#endif
		return false;
		}

		static inline u32 tcf_skbedit_ptype(const struct tc_action *a)
		{
		u16 ptype;

		rcu_read_lock();
		ptype = rcu_dereference(to_skbedit(a)->params)->ptype;
		rcu_read_unlock();

		return ptype;
		}

		#endif /* __NET_TC_SKBEDIT_H */

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