diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2022-02-18 13:35:42 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-02-19 12:28:00 +0000 |
| commit | f73c1194634506ab60af0debef04671fc431a435 (patch) | |
| tree | 5273f5526f53cc3435d73e59482f8cd57f6ed7af /net/mptcp/mib.h | |
| parent | 837cf45df163a3780bc04b555700231e95b31dc9 (diff) | |
mptcp: add mibs counter for ignored incoming options
The MPTCP in kernel path manager has some constraints on incoming
addresses announce processing, so that in edge scenarios it can
end-up dropping (ignoring) some of such announces.
The above is not very limiting in practice since such scenarios are
very uncommon and MPTCP will recover due to ADD_ADDR retransmissions.
This patch adds a few MIB counters to account for such drop events
to allow easier introspection of the critical scenarios.
Fixes: f7efc7771eac ("mptcp: drop argument port from mptcp_pm_announce_addr")
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.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/mib.h')
| -rw-r--r-- | net/mptcp/mib.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mptcp/mib.h b/net/mptcp/mib.h index ecd3d8b117e0..2966fcb6548b 100644 --- a/net/mptcp/mib.h +++ b/net/mptcp/mib.h @@ -28,12 +28,14 @@ enum linux_mptcp_mib_field { MPTCP_MIB_ADDADDR, /* Received ADD_ADDR with echo-flag=0 */ MPTCP_MIB_ECHOADD, /* Received ADD_ADDR with echo-flag=1 */ MPTCP_MIB_PORTADD, /* Received ADD_ADDR with a port-number */ + MPTCP_MIB_ADDADDRDROP, /* Dropped incoming ADD_ADDR */ MPTCP_MIB_JOINPORTSYNRX, /* Received a SYN MP_JOIN with a different port-number */ MPTCP_MIB_JOINPORTSYNACKRX, /* Received a SYNACK MP_JOIN with a different port-number */ MPTCP_MIB_JOINPORTACKRX, /* Received an ACK MP_JOIN with a different port-number */ MPTCP_MIB_MISMATCHPORTSYNRX, /* Received a SYN MP_JOIN with a mismatched port-number */ MPTCP_MIB_MISMATCHPORTACKRX, /* Received an ACK MP_JOIN with a mismatched port-number */ MPTCP_MIB_RMADDR, /* Received RM_ADDR */ + MPTCP_MIB_RMADDRDROP, /* Dropped incoming RM_ADDR */ MPTCP_MIB_RMSUBFLOW, /* Remove a subflow */ MPTCP_MIB_MPPRIOTX, /* Transmit a MP_PRIO */ MPTCP_MIB_MPPRIORX, /* Received a MP_PRIO */ |