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authorSabrina Dubroca <sd@queasysnail.net>2020-08-04 12:37:29 +0300
committerSteffen Klassert <steffen.klassert@secunet.com>2020-08-27 09:37:50 +0300
commit45a36a18d01907710bad5258d81f76c18882ad88 (patch)
tree8715c4ea0cc5c1fcf895b5dff5505ebf1248bd25 /net/xfrm
parent4eb2e13415757a2bce5bb0d580d22bbeef1f5346 (diff)
downloadlinux-45a36a18d01907710bad5258d81f76c18882ad88.tar.xz
xfrmi: drop ignore_df check before updating pmtu
xfrm interfaces currently test for !skb->ignore_df when deciding whether to update the pmtu on the skb's dst. Because of this, no pmtu exception is created when we do something like: ping -s 1438 <dest> By dropping this check, the pmtu exception will be created and the next ping attempt will work. Fixes: f203b76d7809 ("xfrm: Add virtual xfrm interfaces") Reported-by: Xiumei Mu <xmu@redhat.com> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/xfrm')
-rw-r--r--net/xfrm/xfrm_interface.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index eb8181987620..a8f66112c52b 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -303,7 +303,7 @@ xfrmi_xmit2(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
}
mtu = dst_mtu(dst);
- if (!skb->ignore_df && skb->len > mtu) {
+ if (skb->len > mtu) {
skb_dst_update_pmtu_no_confirm(skb, mtu);
if (skb->protocol == htons(ETH_P_IPV6)) {