diff options
| author | Florian Westphal <fw@strlen.de> | 2021-02-13 02:59:55 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-02-13 03:31:45 +0300 |
| commit | a141e02e393370e082b25636401c49978b61bfcf (patch) | |
| tree | cb4f9c9b96b72fbab952086c4e9dc544dbb3f5fe /net | |
| parent | e98014306840f58072f50a55ad49400f227a5b65 (diff) | |
| download | linux-a141e02e393370e082b25636401c49978b61bfcf.tar.xz | |
mptcp: split __mptcp_close_ssk helper
Prepare for subflow close events:
When mptcp connection is torn down its enough to send the mptcp socket
close notification rather than a subflow close event for all of the
subflows followed by the mptcp close event.
This splits the helper: mptcp_close_ssk() will emit the close
notification, __mptcp_close_ssk will not.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mptcp/pm_netlink.c | 4 | ||||
| -rw-r--r-- | net/mptcp/protocol.c | 12 | ||||
| -rw-r--r-- | net/mptcp/protocol.h | 4 |
3 files changed, 13 insertions, 7 deletions
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c index 8f2fd6874d85..c3abff40fa4e 100644 --- a/net/mptcp/pm_netlink.c +++ b/net/mptcp/pm_netlink.c @@ -594,7 +594,7 @@ static void mptcp_pm_nl_rm_addr_received(struct mptcp_sock *msk) spin_unlock_bh(&msk->pm.lock); mptcp_subflow_shutdown(sk, ssk, how); - __mptcp_close_ssk(sk, ssk, subflow); + mptcp_close_ssk(sk, ssk, subflow); spin_lock_bh(&msk->pm.lock); msk->pm.add_addr_accepted--; @@ -664,7 +664,7 @@ void mptcp_pm_nl_rm_subflow_received(struct mptcp_sock *msk, u8 rm_id) spin_unlock_bh(&msk->pm.lock); mptcp_subflow_shutdown(sk, ssk, how); - __mptcp_close_ssk(sk, ssk, subflow); + mptcp_close_ssk(sk, ssk, subflow); spin_lock_bh(&msk->pm.lock); msk->pm.local_addr_used--; diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 93134b72490a..3fd8aef979a3 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -2114,8 +2114,8 @@ static struct sock *mptcp_subflow_get_retrans(const struct mptcp_sock *msk) * so we need to use tcp_close() after detaching them from the mptcp * parent socket. */ -void __mptcp_close_ssk(struct sock *sk, struct sock *ssk, - struct mptcp_subflow_context *subflow) +static void __mptcp_close_ssk(struct sock *sk, struct sock *ssk, + struct mptcp_subflow_context *subflow) { list_del(&subflow->node); @@ -2147,6 +2147,12 @@ void __mptcp_close_ssk(struct sock *sk, struct sock *ssk, sock_put(ssk); } +void mptcp_close_ssk(struct sock *sk, struct sock *ssk, + struct mptcp_subflow_context *subflow) +{ + __mptcp_close_ssk(sk, ssk, subflow); +} + static unsigned int mptcp_sync_mss(struct sock *sk, u32 pmtu) { return 0; @@ -2164,7 +2170,7 @@ static void __mptcp_close_subflow(struct mptcp_sock *msk) if (inet_sk_state_load(ssk) != TCP_CLOSE) continue; - __mptcp_close_ssk((struct sock *)msk, ssk, subflow); + mptcp_close_ssk((struct sock *)msk, ssk, subflow); } } diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 702dbfefa093..3081294dca6c 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -539,8 +539,8 @@ void mptcp_subflow_fully_established(struct mptcp_subflow_context *subflow, bool mptcp_subflow_data_available(struct sock *sk); void __init mptcp_subflow_init(void); void mptcp_subflow_shutdown(struct sock *sk, struct sock *ssk, int how); -void __mptcp_close_ssk(struct sock *sk, struct sock *ssk, - struct mptcp_subflow_context *subflow); +void mptcp_close_ssk(struct sock *sk, struct sock *ssk, + struct mptcp_subflow_context *subflow); void mptcp_subflow_reset(struct sock *ssk); void mptcp_sock_graft(struct sock *sk, struct socket *parent); struct socket *__mptcp_nmpc_socket(const struct mptcp_sock *msk); |