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tls: kernel TLS support

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Software implementation of transport layer security, implemented using ULP
infrastructure.  tcp proto_ops are replaced with tls equivalents of sendmsg and
sendpage.

Only symmetric crypto is done in the kernel, keys are passed by setsockopt
after the handshake is complete.  All control messages are supported via CMSG
data - the actual symmetric encryption is the same, just the message type needs
to be passed separately.

For user API, please see Documentation patch.

Pieces that can be shared between hw and sw implementation
are in tls_main.c

Signed-off-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: Ilya Lesokhin <ilyal@mellanox.com>
Signed-off-by: Aviad Yehezkel <aviadye@mellanox.com>
Signed-off-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dave Watson
2017-06-14 11:37:39 -07:00
committed by David S. Miller
parent e3b5616a34
commit 3c4d755915
10 changed files with 1607 additions and 0 deletions
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include/linux/socket.h
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@@ -334,6 +334,7 @@ struct ucred {
#define SOL_ALG 279
#define SOL_NFC 280
#define SOL_KCM 281
#define SOL_TLS 282
/* IPX options */
#define IPX_TYPE 1