diff options
| author | Geliang Tang <geliangtang@gmail.com> | 2021-04-16 15:38:03 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-04-16 17:10:40 -0700 |
| commit | 43f1140b9678e0fd9dcddd96faee8fad86a70061 (patch) | |
| tree | 2ac318bd5174d641ceaaf6492f41bbb9fabffd76 /net/mptcp/protocol.h | |
| parent | e4b6135134a75f530bd634ea7c168efaf0f9dff3 (diff) | |
mptcp: export mptcp_subflow_active
This patch moved the static function mptcp_subflow_active to protocol.h
as an inline one.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp/protocol.h')
| -rw-r--r-- | net/mptcp/protocol.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index df269c26f145..edc0128730df 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -544,6 +544,18 @@ void mptcp_info2sockaddr(const struct mptcp_addr_info *info, struct sockaddr_storage *addr, unsigned short family); +static inline bool mptcp_subflow_active(struct mptcp_subflow_context *subflow) +{ + struct sock *ssk = mptcp_subflow_tcp_sock(subflow); + + /* can't send if JOIN hasn't completed yet (i.e. is usable for mptcp) */ + if (subflow->request_join && !subflow->fully_established) + return false; + + /* only send if our side has not closed yet */ + return ((1 << ssk->sk_state) & (TCPF_ESTABLISHED | TCPF_CLOSE_WAIT)); +} + static inline void mptcp_subflow_tcp_fallback(struct sock *sk, struct mptcp_subflow_context *ctx) { |