From dda2fa08a13c688bed320ef2e4ba541abb4d6c17 Mon Sep 17 00:00:00 2001 From: Wojciech Drewek Date: Thu, 8 Sep 2022 10:16:41 -0700 Subject: flow_dissector: Add L2TPv3 dissectors Allow to dissect L2TPv3 specific field which is: - session ID (32 bits) L2TPv3 might be transported over IP or over UDP, this implementation is only about L2TPv3 over IP. IP protocol carries L2TPv3 when ip_proto is IPPROTO_L2TP (115). Acked-by: Guillaume Nault Signed-off-by: Wojciech Drewek Signed-off-by: Tony Nguyen Signed-off-by: Paolo Abeni --- include/net/flow_dissector.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/net/flow_dissector.h') diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h index 6c74812d64b2..5ccf52ef8809 100644 --- a/include/net/flow_dissector.h +++ b/include/net/flow_dissector.h @@ -289,6 +289,14 @@ struct flow_dissector_key_pppoe { __be16 type; }; +/** + * struct flow_dissector_key_l2tpv3: + * @session_id: identifier for a l2tp session + */ +struct flow_dissector_key_l2tpv3 { + __be32 session_id; +}; + enum flow_dissector_key_id { FLOW_DISSECTOR_KEY_CONTROL, /* struct flow_dissector_key_control */ FLOW_DISSECTOR_KEY_BASIC, /* struct flow_dissector_key_basic */ @@ -320,6 +328,7 @@ enum flow_dissector_key_id { FLOW_DISSECTOR_KEY_HASH, /* struct flow_dissector_key_hash */ FLOW_DISSECTOR_KEY_NUM_OF_VLANS, /* struct flow_dissector_key_num_of_vlans */ FLOW_DISSECTOR_KEY_PPPOE, /* struct flow_dissector_key_pppoe */ + FLOW_DISSECTOR_KEY_L2TPV3, /* struct flow_dissector_key_l2tpv3 */ FLOW_DISSECTOR_KEY_MAX, }; -- cgit v1.2.3