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authorEric Dumazet <edumazet@google.com>2023-02-01 17:43:45 +0000
committerJakub Kicinski <kuba@kernel.org>2023-02-02 21:14:50 -0800
commit2798e36dc233a409a5d3f26f73029596dc504020 (patch)
tree059e250ccf09225bbeb55b0123071aba7caed1ee /include/net/dropreason.h
parent0719bc3a5c77091192c57e440896a969cd1cf885 (diff)
tcp: add TCP_MINTTL drop reason
In the unlikely case incoming packets are dropped because of IP_MINTTL / IPV6_MINHOPCOUNT constraints... Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20230201174345.2708943-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net/dropreason.h')
-rw-r--r--include/net/dropreason.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net/dropreason.h b/include/net/dropreason.h
index 70539288f995..94bc3d5d8803 100644
--- a/include/net/dropreason.h
+++ b/include/net/dropreason.h
@@ -71,6 +71,7 @@
FN(DUP_FRAG) \
FN(FRAG_REASM_TIMEOUT) \
FN(FRAG_TOO_FAR) \
+ FN(TCP_MINTTL) \
FNe(MAX)
/**
@@ -313,6 +314,11 @@ enum skb_drop_reason {
*/
SKB_DROP_REASON_FRAG_TOO_FAR,
/**
+ * @SKB_DROP_REASON_TCP_MINTTL: ipv4 ttl or ipv6 hoplimit below
+ * the threshold (IP_MINTTL or IPV6_MINHOPCOUNT).
+ */
+ SKB_DROP_REASON_TCP_MINTTL,
+ /**
* @SKB_DROP_REASON_MAX: the maximum of drop reason, which shouldn't be
* used as a real 'reason'
*/