* [PATCH]ipv6: fix the bug when we do not have a socket context
@ 2012-11-21 11:12 Duan Jiong
2012-11-21 14:40 ` Eric Dumazet
0 siblings, 1 reply; 2+ messages in thread
From: Duan Jiong @ 2012-11-21 11:12 UTC (permalink / raw)
To: davem; +Cc: netdev
call the ip6_update_pmtu/ip6_redirect function to deal with
ICMPV6 Error Messages and Redirect Message, when we do not
have a socket context.
Signed-off-by: Duan Jiong <djduanjiong@gmail•com>
---
net/ipv6/raw.c | 16 +++++++++++++++-
1 files changed, 15 insertions(+), 1 deletions(-)
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index d8e95c7..b10f478 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -354,7 +354,9 @@ void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
const struct in6_addr *saddr, *daddr;
struct net *net;
+
hash = nexthdr & (RAW_HTABLE_SIZE - 1);
+ net = dev_net(skb->dev);
read_lock(&raw_v6_hashinfo.lock);
sk = sk_head(&raw_v6_hashinfo.ht[hash]);
@@ -363,7 +365,6 @@ void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
const struct ipv6hdr *ip6h = (const struct ipv6hdr *)skb->data;
saddr = &ip6h->saddr;
daddr = &ip6h->daddr;
- net = dev_net(skb->dev);
while ((sk = __raw_v6_lookup(net, sk, nexthdr, saddr, daddr,
IP6CB(skb)->iif))) {
@@ -371,6 +372,19 @@ void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
inner_offset, info);
sk = sk_next(sk);
}
+ } else {
+ switch (type) {
+ case ICMPV6_PKT_TOOBIG:
+ ip6_update_pmtu(skb, net, info, 0, 0);
+ break;
+
+ case NDISC_REDIRECT:
+ ip6_redirect(skb, net, 0, 0);
+ break;
+
+ default:
+ break;
+ }
}
read_unlock(&raw_v6_hashinfo.lock);
}
--
1.7.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH]ipv6: fix the bug when we do not have a socket context
2012-11-21 11:12 [PATCH]ipv6: fix the bug when we do not have a socket context Duan Jiong
@ 2012-11-21 14:40 ` Eric Dumazet
0 siblings, 0 replies; 2+ messages in thread
From: Eric Dumazet @ 2012-11-21 14:40 UTC (permalink / raw)
To: Duan Jiong; +Cc: davem, netdev
On Wed, 2012-11-21 at 19:12 +0800, Duan Jiong wrote:
> call the ip6_update_pmtu/ip6_redirect function to deal with
> ICMPV6 Error Messages and Redirect Message, when we do not
> have a socket context.
>
> Signed-off-by: Duan Jiong <djduanjiong@gmail•com>
> ---
What is the exact problem you want to solve ?
What is the possible impact on the routing table size ?
Thanks
^ permalink raw reply [flat|nested] 2+ messages in thread
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