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authorAndy Zhou <azhou@nicira.com>2015-05-15 14:15:37 -0700
committerDavid S. Miller <davem@davemloft.net>2015-05-19 00:15:39 -0400
commit49d16b23cd1e61c028ee088c5a64e9ac6a9c6147 (patch)
tree446c416b396c4561bd5616f6fba2ef52c43c8d06 /include/net/ip.h
parent8bc04864ac89616e55fc8a196dd32b7066433ea8 (diff)
bridge_netfilter: No ICMP packet on IPv4 fragmentation error
When bridge netfilter re-fragments an IP packet for output, all packets that can not be re-fragmented to their original input size should be silently discarded. However, current bridge netfilter output path generates an ICMP packet with 'size exceeded MTU' message for such packets, this is a bug. This patch refactors the ip_fragment() API to allow two separate use cases. The bridge netfilter user case will not send ICMP, the routing output will, as before. Signed-off-by: Andy Zhou <azhou@nicira.com> Acked-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/ip.h')
-rw-r--r--include/net/ip.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index 43f6f39df9fc..cd7a6a458bb6 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -108,8 +108,8 @@ int ip_local_deliver(struct sk_buff *skb);
int ip_mr_input(struct sk_buff *skb);
int ip_output(struct sock *sk, struct sk_buff *skb);
int ip_mc_output(struct sock *sk, struct sk_buff *skb);
-int ip_fragment(struct sock *sk, struct sk_buff *skb,
- int (*output)(struct sock *, struct sk_buff *));
+int ip_do_fragment(struct sock *sk, struct sk_buff *skb,
+ int (*output)(struct sock *, struct sk_buff *));
int ip_do_nat(struct sk_buff *skb);
void ip_send_check(struct iphdr *ip);
int __ip_local_out(struct sk_buff *skb);

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