From 77feb4eed7560215a724df6e7d4f1beaf98ba49d Mon Sep 17 00:00:00 2001 From: John Hurley Date: Sun, 4 Aug 2019 16:09:03 +0100 Subject: net: tc_act: add skbedit_ptype helper functions 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 Reviewed-by: Simon Horman Reviewed-by: Jakub Kicinski Signed-off-by: David S. Miller --- include/net/tc_act/tc_skbedit.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/include/net/tc_act/tc_skbedit.h b/include/net/tc_act/tc_skbedit.h index 4c04e2985508..b22a1f641f02 100644 --- a/include/net/tc_act/tc_skbedit.h +++ b/include/net/tc_act/tc_skbedit.h @@ -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 */ -- cgit v1.2.3