diff options
| author | Geliang Tang <geliangtang@gmail.com> | 2021-03-26 11:26:38 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-26 15:05:15 -0700 |
| commit | 557963c383e8209b14de91bf2a0301a41b94d8c4 (patch) | |
| tree | 1c3b382022c56e8e7996963382d884203884f2d0 /net/mptcp/pm.c | |
| parent | d88c476f4a7dd69a2588470f6c4f8b663efa16c6 (diff) | |
mptcp: move to next addr when subflow creation fail
When an invalid address was announced, the subflow couldn't be created
for this address. Therefore mptcp_pm_nl_subflow_established couldn't be
invoked. Then the next addresses in the local address list didn't have a
chance to be announced.
This patch invokes the new function mptcp_pm_add_addr_echoed when the
address is echoed. In it, use mptcp_lookup_anno_list_by_saddr to check
whether this address is in the anno_list. If it is, PM schedules the
status MPTCP_PM_SUBFLOW_ESTABLISHED to invoke
mptcp_pm_create_subflow_or_signal_addr to deal with the next address in
the local address list.
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/pm.c')
| -rw-r--r-- | net/mptcp/pm.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index 0a06d5947a73..966942d1013f 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -196,6 +196,21 @@ void mptcp_pm_add_addr_received(struct mptcp_sock *msk, spin_unlock_bh(&pm->lock); } +void mptcp_pm_add_addr_echoed(struct mptcp_sock *msk, + struct mptcp_addr_info *addr) +{ + struct mptcp_pm_data *pm = &msk->pm; + + pr_debug("msk=%p", msk); + + spin_lock_bh(&pm->lock); + + if (mptcp_lookup_anno_list_by_saddr(msk, addr) && READ_ONCE(pm->work_pending)) + mptcp_pm_schedule_work(msk, MPTCP_PM_SUBFLOW_ESTABLISHED); + + spin_unlock_bh(&pm->lock); +} + void mptcp_pm_add_addr_send_ack(struct mptcp_sock *msk) { if (!mptcp_pm_should_add_signal(msk)) |