diff options
Diffstat (limited to 'net/mptcp/protocol.h')
| -rw-r--r-- | net/mptcp/protocol.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index c59cf8b220b0..543d4d5d8985 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -48,4 +48,30 @@ static inline struct mptcp_sock *mptcp_sk(const struct sock *sk) return (struct mptcp_sock *)sk; } +/* MPTCP subflow context */ +struct mptcp_subflow_context { + u32 request_mptcp : 1; /* send MP_CAPABLE */ + struct sock *tcp_sock; /* tcp sk backpointer */ + struct sock *conn; /* parent mptcp_sock */ + struct rcu_head rcu; +}; + +static inline struct mptcp_subflow_context * +mptcp_subflow_ctx(const struct sock *sk) +{ + struct inet_connection_sock *icsk = inet_csk(sk); + + /* Use RCU on icsk_ulp_data only for sock diag code */ + return (__force struct mptcp_subflow_context *)icsk->icsk_ulp_data; +} + +static inline struct sock * +mptcp_subflow_tcp_sock(const struct mptcp_subflow_context *subflow) +{ + return subflow->tcp_sock; +} + +void mptcp_subflow_init(void); +int mptcp_subflow_create_socket(struct sock *sk, struct socket **new_sock); + #endif /* __MPTCP_PROTOCOL_H */ |