[v5] mptcp: add support for mixed v4/v6

[PATCH mptcp-next v5 05/12] mptcp: propagate sk_ipv6only to subflows

Matthieu Baerts posted 12 patches 3 years, 1 month ago

Diff against v1 v2 v3 v4
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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>, Shuah Khan <shuah@kernel.org>, Kishen Maloor <kishen.maloor@intel.com>, Florian Westphal <fw@strlen.de>

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[PATCH mptcp-next v5 05/12] mptcp: propagate sk_ipv6only to subflows

Posted by Matthieu Baerts 3 years, 1 month ago

Usually, attributes are propagated to subflows as well.

Here, if subflows are created by other ways than the MPTCP path-manager,
it is important to make sure they are in v6 if it is asked by the
userspace.

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

diff --git a/net/mptcp/sockopt.c b/net/mptcp/sockopt.c
index 582ed93bcc8a..9986681aaf40 100644
--- a/net/mptcp/sockopt.c
+++ b/net/mptcp/sockopt.c
@@ -1255,6 +1255,7 @@ static void sync_socket_options(struct mptcp_sock *msk, struct sock *ssk)
 	ssk->sk_priority = sk->sk_priority;
 	ssk->sk_bound_dev_if = sk->sk_bound_dev_if;
 	ssk->sk_incoming_cpu = sk->sk_incoming_cpu;
+	ssk->sk_ipv6only = sk->sk_ipv6only;
 	__ip_sock_set_tos(ssk, inet_sk(sk)->tos);
 
 	if (sk->sk_userlocks & tx_rx_locks) {
-- 
2.37.2