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linux/net/mptcp
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Paolo Abeni 55b47ca7d8 mptcp: fix active subflow finalization 
Active subflow are inserted into the connection list at creation time.
When the MPJ handshake completes successfully, a new subflow creation
netlink event is generated correctly, but the current code wrongly
avoid initializing a couple of subflow data.

The above will cause misbehavior on a few exceptional events: unneeded
mptcp-level retransmission on msk-level sequence wrap-around and infinite
mapping fallback even when a MPJ socket is present.

Address the issue factoring out the needed initialization in a new helper
and invoking the latter from __mptcp_finish_join() time for passive
subflow and from mptcp_finish_join() for active ones.

Fixes: 0530020a7c ("mptcp: track and update contiguous data status")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-06-01 10:04:04 -07:00
..
bpf.c
crypto.c
crypto_test.c
ctrl.c
diag.c
fastopen.c mptcp: fix NULL pointer dereference on fastopen early fallback 2023-04-13 09:58:55 -07:00
Kconfig
Makefile mptcp: implement delayed seq generation for passive fastopen 2022-11-29 20:24:25 -08:00
mib.c
mib.h
mptcp_diag.c tcp: Access &tcp_hashinfo via net. 2022-09-20 10:21:49 -07:00
options.c mptcp: remove unused 'remaining' variable 2023-04-17 08:25:33 +01:00
pm.c mptcp: drop unneeded argument 2023-04-17 08:18:34 +01:00
pm_netlink.c mptcp: move first subflow allocation at mpc access time 2023-04-17 08:18:34 +01:00
pm_userspace.c mptcp: make userspace_pm_append_new_local_addr static 2023-04-17 08:25:33 +01:00
protocol.c mptcp: fix active subflow finalization 2023-06-01 10:04:04 -07:00
protocol.h mptcp: consolidate passive msk socket initialization 2023-06-01 10:04:04 -07:00
sockopt.c mptcp: move first subflow allocation at mpc access time 2023-04-17 08:18:34 +01:00
subflow.c mptcp: consolidate passive msk socket initialization 2023-06-01 10:04:04 -07:00
syncookies.c
token.c mptcp: add statistics for mptcp socket in use 2023-01-09 07:30:50 +00:00
token_test.c mptcp: init sk->sk_prot in build_msk() 2023-01-09 07:30:50 +00:00