From: Dmitry Safonov <[email protected]>
Signed-off-by: Dmitry Safonov <[email protected]>
---
Documentation/networking/tcp_ao.rst | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/Documentation/networking/tcp_ao.rst b/Documentation/networking/tcp_ao.rst
index 8a58321acce7..e96e62d1dab3 100644
--- a/Documentation/networking/tcp_ao.rst
+++ b/Documentation/networking/tcp_ao.rst
@@ -337,6 +337,15 @@ TCP-AO per-socket counters are also duplicated with per-netns counters,
exposed with SNMP. Those are ``TCPAOGood``, ``TCPAOBad``, ``TCPAOKeyNotFound``,
``TCPAORequired`` and ``TCPAODroppedIcmps``.
+For monitoring purposes, there are following TCP-AO trace events:
+``tcp_hash_bad_header``, ``tcp_hash_ao_required``, ``tcp_ao_handshake_failure``,
+``tcp_ao_wrong_maclen``, ``tcp_ao_wrong_maclen``, ``tcp_ao_key_not_found``,
+``tcp_ao_rnext_request``, ``tcp_ao_synack_no_key``, ``tcp_ao_snd_sne_update``,
+``tcp_ao_rcv_sne_update``. It's possible to separately enable any of them and
+one can filter them by net-namespace, 4-tuple, family, L3 index, and TCP header
+flags. If a segment has a TCP-AO header, the filters may also include
+keyid, rnext, and maclen. SNE updates include the rolled-over numbers.
+
RFC 5925 very permissively specifies how TCP port matching can be done for
MKTs::
--
2.42.0