[PATCH net-next v2 4/9] net: introduce MACsec ops and add a reference in net_device

Antoine Tenart
2019-08-08T14:11:02Z

This patch introduces MACsec ops for drivers to support offloading
MACsec operations. A reference to those ops is added in net_device.

Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
---
include/linux/netdevice.h | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 88292953aa6f..59ff123d62e3 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -53,6 +53,7 @@ struct netpoll_info;
struct device;
struct phy_device;
struct dsa_port;
+struct macsec_context;

struct sfp_bus;
/* 802.11 specific */
@@ -910,6 +911,29 @@ struct xfrmdev_ops {
};
#endif

+#if defined(CONFIG_MACSEC)
+struct macsec_ops {
+ /* Device wide */
+ int (*mdo_dev_open)(struct macsec_context *ctx);
+ int (*mdo_dev_stop)(struct macsec_context *ctx);
+ /* SecY */
+ int (*mdo_add_secy)(struct macsec_context *ctx);
+ int (*mdo_upd_secy)(struct macsec_context *ctx);
+ int (*mdo_del_secy)(struct macsec_context *ctx);
+ /* Security channels */
+ int (*mdo_add_rxsc)(struct macsec_context *ctx);
+ int (*mdo_upd_rxsc)(struct macsec_context *ctx);
+ int (*mdo_del_rxsc)(struct macsec_context *ctx);
+ /* Security associations */
+ int (*mdo_add_rxsa)(struct macsec_context *ctx);
+ int (*mdo_upd_rxsa)(struct macsec_context *ctx);
+ int (*mdo_del_rxsa)(struct macsec_context *ctx);
+ int (*mdo_add_txsa)(struct macsec_context *ctx);
+ int (*mdo_upd_txsa)(struct macsec_context *ctx);
+ int (*mdo_del_txsa)(struct macsec_context *ctx);
+};
+#endif
+
struct dev_ifalias {
struct rcu_head rcuhead;
char ifalias[];
@@ -1755,6 +1779,8 @@ enum netdev_priv_flags {
*
* @wol_enabled: Wake-on-LAN is enabled
*
+ * @macsec_ops: MACsec offloading ops
+ *
* FIXME: cleanup struct net_device such that network protocol info
* moves out.
*/
@@ -2036,6 +2062,11 @@ struct net_device {
struct lock_class_key *qdisc_running_key;
bool proto_down;
unsigned wol_enabled:1;
+
+#if IS_ENABLED(CONFIG_MACSEC)
+ /* MACsec management functions */
+ const struct macsec_ops *macsec_ops;
+#endif
};
#define to_net_dev(d) container_of(d, struct net_device, dev)

--
2.21.0