netdev - [PATCH net-next v3 13/13] flow_dissector: Add case in ipproto switch for NEXTHDR

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Message-Id: <20240821212212.1795357-14-tom@herbertland.com>
Date: Wed, 21 Aug 2024 14:22:12 -0700
From: Tom Herbert <tom@...bertland.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	edumazet@...gle.com,
	netdev@...r.kernel.org,
	felipe@...anda.io,
	willemdebruijn.kernel@...il.com,
	pablo@...filter.org,
	laforge@...monks.org,
	xeb@...l.ru
Cc: Tom Herbert <tom@...bertland.com>
Subject: [PATCH net-next v3 13/13] flow_dissector: Add case in ipproto switch for NEXTHDR_NONE

Protocol number 59 (no-next-header) means nothing follows the
IP header, break out of the flow dissector loop on
FLOW_DISSECT_RET_OUT_GOOD when encountered in a packet

Signed-off-by: Tom Herbert <tom@...bertland.com>
---
 net/core/flow_dissector.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index ee80c2d2531c..e34c1b6c36e3 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -1991,6 +1991,9 @@ bool __skb_flow_dissect(const struct net *net,
 		fdret = FLOW_DISSECT_RET_OUT_GOOD;
 		break;
 	}
+	case NEXTHDR_NONE:
+		fdret = FLOW_DISSECT_RET_OUT_GOOD;
+		break;
 	case IPPROTO_IPIP:
 		if (flags & FLOW_DISSECTOR_F_STOP_BEFORE_ENCAP) {
 			fdret = FLOW_DISSECT_RET_OUT_GOOD;
-- 
2.34.1