1 files changed, 21 insertions, 0 deletions
diff --git a/include/net/macsec.h b/include/net/macsec.h
index 8494953fb0de..871599b11707 100644
--- a/include/net/macsec.h
+++ b/include/net/macsec.h
@@ -16,6 +16,20 @@
 
 #define MACSEC_NUM_AN 4 /* 2 bits for the association number */
 
+#define MACSEC_SCI_LEN 8
+#define MACSEC_PORT_ES (htons(0x0001))
+
+#define MACSEC_TCI_VERSION 0x80
+#define MACSEC_TCI_ES      0x40 /* end station */
+#define MACSEC_TCI_SC      0x20 /* SCI present */
+#define MACSEC_TCI_SCB     0x10 /* epon */
+#define MACSEC_TCI_E       0x08 /* encryption */
+#define MACSEC_TCI_C       0x04 /* changed text */
+#define MACSEC_AN_MASK     0x03 /* association number */
+#define MACSEC_TCI_CONFID  (MACSEC_TCI_E | MACSEC_TCI_C)
+
+#define MACSEC_DEFAULT_ICV_LEN 16
+
 typedef u64 __bitwise sci_t;
 typedef u32 __bitwise ssci_t;
 
@@ -292,5 +306,12 @@ struct macsec_ops {
 };
 
 void macsec_pn_wrapped(struct macsec_secy *secy, struct macsec_tx_sa *tx_sa);
+static inline bool macsec_send_sci(const struct macsec_secy *secy)
+{
+	const struct macsec_tx_sc *tx_sc = &secy->tx_sc;
+
+	return tx_sc->send_sci ||
+		(secy->n_rx_sc > 1 && !tx_sc->end_station && !tx_sc->scb);
+}
 
 #endif /* _NET_MACSEC_H_ */