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authorKangmin Park <l4stpr0gr4m@gmail.com>2021-07-22 20:44:43 +0300
committerDavid S. Miller <davem@davemloft.net>2021-07-23 18:40:41 +0300
commit46c7655f0b56b1ac864115441064cde9ed124f4a (patch)
tree26b08c9b6331e0b8f2061cd647846d92ce916231 /net
parent227adfb2b1dfbc53dfc53b9dd7a93a6298ff7c56 (diff)
downloadlinux-46c7655f0b56b1ac864115441064cde9ed124f4a.tar.xz
ipv6: decrease hop limit counter in ip6_forward()
Decrease hop limit counter when deliver skb to ndp proxy. Signed-off-by: Kangmin Park <l4stpr0gr4m@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/ip6_output.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index e1b9f7ac8bad..8e6ca9ad6812 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;
}