diff options
Diffstat (limited to 'net/mptcp')
| -rw-r--r-- | net/mptcp/protocol.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 866dfad3cde6..fc753896caa0 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1677,6 +1677,7 @@ static int mptcp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) { struct mptcp_sock *msk = mptcp_sk(sk); struct page_frag *pfrag; + struct socket *ssock; size_t copied = 0; int ret = 0; long timeo; @@ -1690,6 +1691,27 @@ static int mptcp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) lock_sock(sk); + ssock = __mptcp_nmpc_socket(msk); + if (unlikely(ssock && inet_sk(ssock->sk)->defer_connect)) { + struct sock *ssk = ssock->sk; + int copied_syn = 0; + + lock_sock(ssk); + + ret = tcp_sendmsg_fastopen(ssk, msg, &copied_syn, len, NULL); + copied += copied_syn; + if (ret == -EINPROGRESS && copied_syn > 0) { + /* reflect the new state on the MPTCP socket */ + inet_sk_state_store(sk, inet_sk_state_load(ssk)); + release_sock(ssk); + goto out; + } else if (ret) { + release_sock(ssk); + goto out; + } + release_sock(ssk); + } + timeo = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT); if ((1 << sk->sk_state) & ~(TCPF_ESTABLISHED | TCPF_CLOSE_WAIT)) { |