From 5544adb9707fda5d54494c37940701894c16b9a0 Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Tue, 17 Jul 2018 19:27:17 +0300 Subject: [PATCH] flow_dissector: Dissect tos and ttl from the tunnel info Add dissection of the tos and ttl from the ip tunnel headers fields in case a match is needed on them. Signed-off-by: Or Gerlitz Reviewed-by: Roi Dayan Acked-by: Jiri Pirko Signed-off-by: David S. Miller --- include/net/flow_dissector.h | 2 +- net/core/flow_dissector.c | 14 +++++++++++++- 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h index c64406717eee..2a17f041f7a1 100644 --- a/include/net/flow_dissector.h +++ b/include/net/flow_dissector.h @@ -207,7 +207,7 @@ enum flow_dissector_key_id { FLOW_DISSECTOR_KEY_TCP, /* struct flow_dissector_key_tcp */ FLOW_DISSECTOR_KEY_IP, /* struct flow_dissector_key_ip */ FLOW_DISSECTOR_KEY_CVLAN, /* struct flow_dissector_key_flow_vlan */ - + FLOW_DISSECTOR_KEY_ENC_IP, /* struct flow_dissector_key_ip */ FLOW_DISSECTOR_KEY_MAX, }; diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c index b555fc229e96..08a5184f4b34 100644 --- a/net/core/flow_dissector.c +++ b/net/core/flow_dissector.c @@ -152,7 +152,9 @@ skb_flow_dissect_tunnel_info(const struct sk_buff *skb, !dissector_uses_key(flow_dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL) && !dissector_uses_key(flow_dissector, - FLOW_DISSECTOR_KEY_ENC_PORTS)) + FLOW_DISSECTOR_KEY_ENC_PORTS) && + !dissector_uses_key(flow_dissector, + FLOW_DISSECTOR_KEY_ENC_IP)) return; info = skb_tunnel_info(skb); @@ -212,6 +214,16 @@ skb_flow_dissect_tunnel_info(const struct sk_buff *skb, tp->src = key->tp_src; tp->dst = key->tp_dst; } + + if (dissector_uses_key(flow_dissector, FLOW_DISSECTOR_KEY_ENC_IP)) { + struct flow_dissector_key_ip *ip; + + ip = skb_flow_dissector_target(flow_dissector, + FLOW_DISSECTOR_KEY_ENC_IP, + target_container); + ip->tos = key->tos; + ip->ttl = key->ttl; + } } EXPORT_SYMBOL(skb_flow_dissect_tunnel_info); -- GitLab