[RFC PATCH mptcp-next v12 5/7] mptcp: add TCP_FASTOPEN_NO_COOKIE support

Dmytro Shytyi posted 7 patches 2 years, 11 months ago
Maintainers: Mat Martineau <mathew.j.martineau@linux.intel.com>, Matthieu Baerts <matthieu.baerts@tessares.net>, "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>, David Ahern <dsahern@kernel.org>, Shuah Khan <shuah@kernel.org>
There is a newer version of this series
[RFC PATCH mptcp-next v12 5/7] mptcp: add TCP_FASTOPEN_NO_COOKIE support
Posted by Dmytro Shytyi 2 years, 11 months ago
From: Matthieu Baerts <matthieu.baerts@tessares.net>

This is patch provided by Matthieu. As it seems it not yet merged I
temprorarly integrated in into my series for compilation.
'https://lore.kernel.org/mptcp/
20220927150306.1552795-1-matthieu.baerts@tessares.net/T/'
When it will be merged I will delete it from this set of patches.

Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
---
 net/mptcp/sockopt.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/net/mptcp/sockopt.c b/net/mptcp/sockopt.c
index 8d3b09d75c3a..1857281a0dd5 100644
--- a/net/mptcp/sockopt.c
+++ b/net/mptcp/sockopt.c
@@ -560,6 +560,7 @@ static bool mptcp_supported_sockopt(int level, int optname)
 		case TCP_TX_DELAY:
 		case TCP_INQ:
 		case TCP_FASTOPEN_CONNECT:
+		case TCP_FASTOPEN_NO_COOKIE:
 			return true;
 		}
 
@@ -568,8 +569,8 @@ static bool mptcp_supported_sockopt(int level, int optname)
 		/* TCP_REPAIR, TCP_REPAIR_QUEUE, TCP_QUEUE_SEQ, TCP_REPAIR_OPTIONS,
 		 * TCP_REPAIR_WINDOW are not supported, better avoid this mess
 		 */
-		/* TCP_FASTOPEN_KEY, TCP_FASTOPEN, TCP_FASTOPEN_NO_COOKIE,
-		 * are not supported fastopen is currently unsupported
+		/* TCP_FASTOPEN_KEY, TCP_FASTOPEN are not supported because
+		 * fastopen for the listener side is currently unsupported
 		 */
 	}
 	return false;
@@ -811,6 +812,7 @@ static int mptcp_setsockopt_sol_tcp(struct mptcp_sock *msk, int optname,
 	case TCP_DEFER_ACCEPT:
 		return mptcp_setsockopt_sol_tcp_defer(msk, optval, optlen);
 	case TCP_FASTOPEN_CONNECT:
+	case TCP_FASTOPEN_NO_COOKIE:
 		return mptcp_setsockopt_first_sf_only(msk, SOL_TCP, optname,
 						      optval, optlen);
 	}
@@ -1175,6 +1177,7 @@ static int mptcp_getsockopt_sol_tcp(struct mptcp_sock *msk, int optname,
 	case TCP_CC_INFO:
 	case TCP_DEFER_ACCEPT:
 	case TCP_FASTOPEN_CONNECT:
+	case TCP_FASTOPEN_NO_COOKIE:
 		return mptcp_getsockopt_first_sf_only(msk, SOL_TCP, optname,
 						      optval, optlen);
 	case TCP_INQ:
-- 
2.34.1