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authorDmitry Popov <ixaphire@qrator.net>2014-06-06 23:19:21 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-06-26 15:15:40 -0400
commita7b791bc2b6fcc29f7c56a375823d436f7f233ce (patch)
treea08acb248a7520e8822e382045e3551262cf3e96 /net/ipv6
parent0d0fc9f9e888a6e3fdabdfc08b7c4044b58bc87a (diff)
downloadlwn-a7b791bc2b6fcc29f7c56a375823d436f7f233ce.tar.gz
lwn-a7b791bc2b6fcc29f7c56a375823d436f7f233ce.zip
ipip, sit: fix ipv4_{update_pmtu,redirect} calls
[ Upstream commit 2346829e641b804ece9ac9298136b56d9567c278 ] ipv4_{update_pmtu,redirect} were called with tunnel's ifindex (t->dev is a tunnel netdevice). It caused wrong route lookup and failure of pmtu update or redirect. We should use the same ifindex that we use in ip_route_output_* in *tunnel_xmit code. It is t->parms.link . Signed-off-by: Dmitry Popov <ixaphire@qrator.net> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/sit.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index a8cd0a3aa455..fe548ba72687 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -560,12 +560,12 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
ipv4_update_pmtu(skb, dev_net(skb->dev), info,
- t->dev->ifindex, 0, IPPROTO_IPV6, 0);
+ t->parms.link, 0, IPPROTO_IPV6, 0);
err = 0;
goto out;
}
if (type == ICMP_REDIRECT) {
- ipv4_redirect(skb, dev_net(skb->dev), t->dev->ifindex, 0,
+ ipv4_redirect(skb, dev_net(skb->dev), t->parms.link, 0,
IPPROTO_IPV6, 0);
err = 0;
goto out;