net: tc_act: add helpers to detect ingress mirred actions

TC mirred actions can send to egress or ingress on a given netdev. Helpers
exist to detect actions that are mirred to egress. Extend the header file
to include helpers to detect ingress mirred actions.

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>

diff --git a/include/net/tc_act/tc_mirred.h b/include/net/tc_act/tc_mirred.h
index c757585..1cace4c 100644 (file)
--- a/include/net/tc_act/tc_mirred.h
+++ b/include/net/tc_act/tc_mirred.h
@@ -32,6 +32,24 @@ static inline bool is_tcf_mirred_egress_mirror(const struct tc_action *a)
        return false;
 }
 
+static inline bool is_tcf_mirred_ingress_redirect(const struct tc_action *a)
+{
+#ifdef CONFIG_NET_CLS_ACT
+       if (a->ops && a->ops->id == TCA_ID_MIRRED)
+               return to_mirred(a)->tcfm_eaction == TCA_INGRESS_REDIR;
+#endif
+       return false;
+}
+
+static inline bool is_tcf_mirred_ingress_mirror(const struct tc_action *a)
+{
+#ifdef CONFIG_NET_CLS_ACT
+       if (a->ops && a->ops->id == TCA_ID_MIRRED)
+               return to_mirred(a)->tcfm_eaction == TCA_INGRESS_MIRROR;
+#endif
+       return false;
+}
+
 static inline struct net_device *tcf_mirred_dev(const struct tc_action *a)
 {
        return rtnl_dereference(to_mirred(a)->tcfm_dev);