diff options
Diffstat (limited to 'net/mptcp/protocol.c')
| -rw-r--r-- | net/mptcp/protocol.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 07559b45eec5..4c075a9f7ed0 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -720,7 +720,8 @@ static void mptcp_cancel_work(struct sock *sk) sock_put(sk); } -static void mptcp_subflow_shutdown(struct sock *ssk, int how) +static void mptcp_subflow_shutdown(struct sock *ssk, int how, + bool data_fin_tx_enable, u64 data_fin_tx_seq) { lock_sock(ssk); @@ -733,6 +734,14 @@ static void mptcp_subflow_shutdown(struct sock *ssk, int how) tcp_disconnect(ssk, O_NONBLOCK); break; default: + if (data_fin_tx_enable) { + struct mptcp_subflow_context *subflow; + + subflow = mptcp_subflow_ctx(ssk); + subflow->data_fin_tx_seq = data_fin_tx_seq; + subflow->data_fin_tx_enable = 1; + } + ssk->sk_shutdown |= how; tcp_shutdown(ssk, how); break; @@ -749,6 +758,7 @@ static void mptcp_close(struct sock *sk, long timeout) struct mptcp_subflow_context *subflow, *tmp; struct mptcp_sock *msk = mptcp_sk(sk); LIST_HEAD(conn_list); + u64 data_fin_tx_seq; lock_sock(sk); @@ -757,11 +767,15 @@ static void mptcp_close(struct sock *sk, long timeout) list_splice_init(&msk->conn_list, &conn_list); + data_fin_tx_seq = msk->write_seq; + release_sock(sk); list_for_each_entry_safe(subflow, tmp, &conn_list, node) { struct sock *ssk = mptcp_subflow_tcp_sock(subflow); + subflow->data_fin_tx_seq = data_fin_tx_seq; + subflow->data_fin_tx_enable = 1; __mptcp_close_ssk(sk, ssk, subflow, timeout); } @@ -854,7 +868,7 @@ static struct sock *mptcp_accept(struct sock *sk, int flags, int *err, *err = -ENOBUFS; local_bh_enable(); release_sock(sk); - mptcp_subflow_shutdown(newsk, SHUT_RDWR + 1); + mptcp_subflow_shutdown(newsk, SHUT_RDWR + 1, 0, 0); tcp_close(newsk, 0); return NULL; } @@ -1309,7 +1323,7 @@ static int mptcp_shutdown(struct socket *sock, int how) mptcp_for_each_subflow(msk, subflow) { struct sock *tcp_sk = mptcp_subflow_tcp_sock(subflow); - mptcp_subflow_shutdown(tcp_sk, how); + mptcp_subflow_shutdown(tcp_sk, how, 1, msk->write_seq); } out_unlock: |