As GRE tries to call the update_pmtu function on skb->dst and
bridge supplies an skb->dst that has a NULL ops field, all is
not well.
This patch fixes this by giving the bridge device an ops field
with an update_pmtu function. For the moment I've left all
other fields blank but we can fill them in later should the
need arise.
Based on report and patch by Philip Craig.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
pppoe_proto(skb) == htons(PPP_IPV6) && \
brnf_filter_pppoe_tagged)
pppoe_proto(skb) == htons(PPP_IPV6) && \
brnf_filter_pppoe_tagged)
+static void fake_update_pmtu(struct dst_entry *dst, u32 mtu)
+{
+}
+
+static struct dst_ops fake_dst_ops = {
+ .family = AF_INET,
+ .protocol = __constant_htons(ETH_P_IP),
+ .update_pmtu = fake_update_pmtu,
+ .entry_size = sizeof(struct rtable),
+ .entries = ATOMIC_INIT(0),
+};
+
/*
* Initialize bogus route table used to keep netfilter happy.
* Currently, we fill in the PMTU entry because netfilter
/*
* Initialize bogus route table used to keep netfilter happy.
* Currently, we fill in the PMTU entry because netfilter
rt->u.dst.path = &rt->u.dst;
rt->u.dst.metrics[RTAX_MTU - 1] = 1500;
rt->u.dst.flags = DST_NOXFRM;
rt->u.dst.path = &rt->u.dst;
rt->u.dst.metrics[RTAX_MTU - 1] = 1500;
rt->u.dst.flags = DST_NOXFRM;
+ rt->u.dst.ops = &fake_dst_ops;
}
static inline struct rtable *bridge_parent_rtable(const struct net_device *dev)
}
static inline struct rtable *bridge_parent_rtable(const struct net_device *dev)