netdev - [PATCH net-next 1/4] net: dropreason: add SKB_DROP_REASON_IPV6_BAD

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Message-ID: <20230210184708.2172562-2-edumazet@google.com>
Date:   Fri, 10 Feb 2023 18:47:05 +0000
From:   Eric Dumazet <edumazet@...gle.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Cc:     David Ahern <dsahern@...nel.org>, netdev@...r.kernel.org,
        eric.dumazet@...il.com, Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH net-next 1/4] net: dropreason: add SKB_DROP_REASON_IPV6_BAD_EXTHDR

This drop reason can be used whenever an IPv6 packet
has a malformed extension header.

Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
 include/net/dropreason.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/net/dropreason.h b/include/net/dropreason.h
index 94bc3d5d880305a8c968a1801dabef83d995c567..6c41e535175cfba44f1f948305c5a1ebc5be9a18 100644
--- a/include/net/dropreason.h
+++ b/include/net/dropreason.h
@@ -72,6 +72,7 @@
 	FN(FRAG_REASM_TIMEOUT)		\
 	FN(FRAG_TOO_FAR)		\
 	FN(TCP_MINTTL)			\
+	FN(IPV6_BAD_EXTHDR)		\
 	FNe(MAX)
 
 /**
@@ -318,6 +319,8 @@ enum skb_drop_reason {
 	 * the threshold (IP_MINTTL or IPV6_MINHOPCOUNT).
 	 */
 	SKB_DROP_REASON_TCP_MINTTL,
+	/** @SKB_DROP_REASON_IPV6_BAD_EXTHDR: Bad IPv6 extension header. */
+	SKB_DROP_REASON_IPV6_BAD_EXTHDR,
 	/**
 	 * @SKB_DROP_REASON_MAX: the maximum of drop reason, which shouldn't be
 	 * used as a real 'reason'
-- 
2.39.1.581.gbfd45094c4-goog