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From: Kangmin Park <l4stpr0gr4m@gmail.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
David Ahern <dsahern@kernel.org>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] ipv6: decrease hop limit counter in ip6_forward()
Date: Fri, 23 Jul 2021 02:44:43 +0900 [thread overview]
Message-ID: <20210722174443.416867-1-l4stpr0gr4m@gmail.com> (raw)
Decrease hop limit counter when deliver skb to ndp proxy.
Signed-off-by: Kangmin Park <l4stpr0gr4m@gmail.com>
---
net/ipv6/ip6_output.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 01bea76e3891..aaaf9622cf2d 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -549,9 +549,10 @@ int ip6_forward(struct sk_buff *skb)
if (net->ipv6.devconf_all->proxy_ndp &&
pneigh_lookup(&nd_tbl, net, &hdr->daddr, skb->dev, 0)) {
int proxied = ip6_forward_proxy_check(skb);
- if (proxied > 0)
+ if (proxied > 0) {
+ hdr->hop_limit--;
return ip6_input(skb);
- else if (proxied < 0) {
+ } else if (proxied < 0) {
__IP6_INC_STATS(net, idev, IPSTATS_MIB_INDISCARDS);
goto drop;
}
--
2.26.2
next reply other threads:[~2021-07-22 17:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-22 17:44 Kangmin Park [this message]
2021-07-23 15:50 ` patchwork-bot+netdevbpf
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