netdev - [PATCH v9 crypto 01/12] tls: tls_device struct to register TLS drivers

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Date:   Tue,  6 Mar 2018 21:06:20 +0530
From:   Atul Gupta <atul.gupta@...lsio.com>
To:     davejwatson@...com, davem@...emloft.net,
        herbert@...dor.apana.org.au
Cc:     linux-crypto@...r.kernel.org, netdev@...r.kernel.org,
        ganeshgr@...lsio.com
Subject: [PATCH v9 crypto 01/12] tls: tls_device struct to register TLS drivers

tls_device structure to register Inline TLS drivers
with net/tls

Signed-off-by: Atul Gupta <atul.gupta@...lsio.com>
---
 include/net/tls.h | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/include/net/tls.h b/include/net/tls.h
index 4913430..9bfb91f 100644
--- a/include/net/tls.h
+++ b/include/net/tls.h
@@ -55,6 +55,28 @@
 #define TLS_RECORD_TYPE_DATA		0x17
 
 #define TLS_AAD_SPACE_SIZE		13
+#define TLS_DEVICE_NAME_MAX		32
+
+enum {
+	TLS_BASE_TX,
+	TLS_SW_TX,
+	TLS_FULL_HW, /* TLS record processed Inline */
+	TLS_NUM_CONFIG,
+};
+
+extern struct proto tls_prots[TLS_NUM_CONFIG];
+
+struct tls_device {
+	char name[TLS_DEVICE_NAME_MAX];
+	struct list_head dev_list;
+
+	/* netdev present in registered inline tls driver */
+	int (*netdev)(struct tls_device *device,
+		      struct net_device *netdev);
+	int (*feature)(struct tls_device *device);
+	int (*hash)(struct tls_device *device, struct sock *sk);
+	void (*unhash)(struct tls_device *device, struct sock *sk);
+};
 
 struct tls_sw_context {
 	struct crypto_aead *aead_send;
@@ -115,6 +137,8 @@ struct tls_context {
 	int  (*getsockopt)(struct sock *sk, int level,
 			   int optname, char __user *optval,
 			   int __user *optlen);
+	int (*hash)(struct sock *sk);
+	void (*unhash)(struct sock *sk);
 };
 
 int wait_on_pending_writer(struct sock *sk, long *timeo);
@@ -256,5 +280,7 @@ static inline struct tls_offload_context *tls_offload_ctx(
 
 int tls_proccess_cmsg(struct sock *sk, struct msghdr *msg,
 		      unsigned char *record_type);
+void tls_register_device(struct tls_device *device);
+void tls_unregister_device(struct tls_device *device);
 
 #endif /* _TLS_OFFLOAD_H */
-- 
1.8.3.1