Since ARP performs its own route lookup call, eventually
returned tunnel metadata must be attached manually.
Signed-off-by: Thomas Graf <tg...@suug.ch>
---
net/ipv4/arp.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 933a928..6cf0502 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -489,6 +489,7 @@ struct sk_buff *arp_create(int type, int ptype, __be32
dest_ip,
unsigned char *arp_ptr;
int hlen = LL_RESERVED_SPACE(dev);
int tlen = dev->needed_tailroom;
+ struct rtable *rt;
/*
* Allocate a buffer
@@ -577,6 +578,13 @@ struct sk_buff *arp_create(int type, int ptype, __be32
dest_ip,
}
memcpy(arp_ptr, &dest_ip, 4);
+ rt = ip_route_output(dev_net(dev), dest_ip, src_ip, 0, dev->ifindex);
+ if (!IS_ERR(rt)) {
+ if (rt->rt_tun_info)
+ skb_attach_tunnel_info(skb, rt->rt_tun_info);
+ ip_rt_put(rt);
+ }
+
return skb;
out:
--
2.3.5
--
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