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mptcp: add pm listener events

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This patch adds two new MPTCP netlink event types for PM listening
socket create and close, named MPTCP_EVENT_LISTENER_CREATED and
MPTCP_EVENT_LISTENER_CLOSED.

Add a new function mptcp_event_pm_listener() to push the new events
with family, port and addr to userspace.

Invoke mptcp_event_pm_listener() with MPTCP_EVENT_LISTENER_CREATED in
mptcp_listen() and mptcp_pm_nl_create_listen_socket(), invoke it with
MPTCP_EVENT_LISTENER_CLOSED in __mptcp_close_ssk().

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Geliang Tang 2022-11-30 15:06:28 +01:00 • committed by Jakub Kicinski
parent 5f17f8e315
commit f8c9dfbd87
4 changed files with 71 additions and 0 deletions
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9
include/uapi/linux/mptcp.h
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@ -160,6 +160,12 @@ struct mptcp_info {
* daddr4 | daddr6, sport, dport, backup, if_idx
* [, error]
* The priority of a subflow has changed. 'error' should not be set.
*
* MPTCP_EVENT_LISTENER_CREATED: family, sport, saddr4 | saddr6
* A new PM listener is created.
*
* MPTCP_EVENT_LISTENER_CLOSED: family, sport, saddr4 | saddr6
* A PM listener is closed.
*/
enum mptcp_event_type {
MPTCP_EVENT_UNSPEC = 0,
@ -174,6 +180,9 @@ enum mptcp_event_type {
MPTCP_EVENT_SUB_CLOSED = 11,
MPTCP_EVENT_SUB_PRIORITY = 13,
MPTCP_EVENT_LISTENER_CREATED = 15,
MPTCP_EVENT_LISTENER_CLOSED = 16,
};
enum mptcp_event_attr {