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mptcp: sockopt: make 'tcp_fastopen_connect' generic 

There are other socket options that need to act only on the first
subflow, e.g. all TCP_FASTOPEN* socket options.

This is similar to the getsockopt version.

In the next commit, this new mptcp_setsockopt_first_sf_only() helper is
used by other another option.

Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Matthieu Baerts 2022-10-21 17:45:03 -07:00 committed by Paolo Abeni
parent 818a26048a
commit d3d429047c
1 changed files with 6 additions and 5 deletions
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11
net/mptcp/sockopt.c
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@ -769,17 +769,17 @@ static int mptcp_setsockopt_sol_tcp_defer(struct mptcp_sock *msk, sockptr_t optv
return tcp_setsockopt(listener->sk, SOL_TCP, TCP_DEFER_ACCEPT, optval, optlen);
}
static int mptcp_setsockopt_sol_tcp_fastopen_connect(struct mptcp_sock *msk, sockptr_t optval,
unsigned int optlen)
static int mptcp_setsockopt_first_sf_only(struct mptcp_sock *msk, int level, int optname,
sockptr_t optval, unsigned int optlen)
{
struct socket *sock;
/* Limit to first subflow */
/* Limit to first subflow, before the connection establishment */
sock = __mptcp_nmpc_socket(msk);
if (!sock)
return -EINVAL;
return tcp_setsockopt(sock->sk, SOL_TCP, TCP_FASTOPEN_CONNECT, optval, optlen);
return tcp_setsockopt(sock->sk, level, optname, optval, optlen);
}
static int mptcp_setsockopt_sol_tcp(struct mptcp_sock *msk, int optname,
@ -811,7 +811,8 @@ 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:
return mptcp_setsockopt_sol_tcp_fastopen_connect(msk, optval, optlen);
return mptcp_setsockopt_first_sf_only(msk, SOL_TCP, optname,
optval, optlen);
}
return -EOPNOTSUPP;