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mptcp: propagate sk_ipv6only to subflows

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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.

Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Matthieu Baerts 2023-01-25 11:47:22 +01:00 committed by Paolo Abeni
parent b9d69db87f
commit 7e9740e0e8
1 changed files with 1 additions and 0 deletions
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net/mptcp/sockopt.c
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@ -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) {