From c845f5f3590ef4669fe5464f8a42be6442cd174b Mon Sep 17 00:00:00 2001
From: Dmitry Safonov <dima@arista.com>
Date: Mon, 23 Oct 2023 20:21:54 +0100
Subject: net/tcp: Add TCP-AO config and structures

Introduce new kernel config option and common structures as well as
helpers to be used by TCP-AO code.

Co-developed-by: Francesco Ruggeri <fruggeri@arista.com>
Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Co-developed-by: Salam Noureddine <noureddine@arista.com>
Signed-off-by: Salam Noureddine <noureddine@arista.com>
Signed-off-by: Dmitry Safonov <dima@arista.com>
Acked-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/tcp.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include/uapi/linux')

diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
index 8aa3916e14f6..74a1267baac5 100644
--- a/include/uapi/linux/tcp.h
+++ b/include/uapi/linux/tcp.h
@@ -361,6 +361,8 @@ struct tcp_diag_md5sig {
 	__u8	tcpm_key[TCP_MD5SIG_MAXKEYLEN];
 };
 
+#define TCP_AO_MAXKEYLEN	80
+
 /* setsockopt(fd, IPPROTO_TCP, TCP_ZEROCOPY_RECEIVE, ...) */
 
 #define TCP_RECEIVE_ZEROCOPY_FLAG_TLB_CLEAN_HINT 0x1
-- 
cgit v1.2.3