Re: 2.6.13-mm2

J.A. Magallon
2005-09-11T01:22:40Z

On 09.11, Patrick McHardy wrote:
> J.A. Magallon wrote:
> > And I also get this on syslog:
> >
> > Sep 11 02:56:58 werewolf kernel: MASQUERADE: eth0 ate my IP address
> > Sep 11 02:56:58 werewolf kernel: MASQUERADE: eth0 ate my IP address
>
> Thanks, I'm pretty sure its caused by this patch. The problem is that
> pump uses a regular UDP socket (some other dhcp clients use AF_PACKET
> sockets), and packet sent by it are also handled by iptables. The
> MASQUERADE rule can't find a local IP address and drops the packet.
> I'm not sure how to fix it yet, reverting the patch is not a good
> option.
>
>

> [NETFILTER]: Don't exclude local packets from MASQUERADING
>
> Increases consistency in source-address selection.
>
> Signed-off-by: Patrick McHardy <kaber@trash.net>
> Signed-off-by: David S. Miller <davem@davemloft.net>
>
> ---
> commit 9baa5c67ff4ce57b6b9f68c90714a1bb876fccd7
> tree 27f2c48e12e1bb5e3e6d5f8320651c213892ed20
> parent fb13ab2849074244a51ae5147483610529a29ced
> author Patrick McHardy <kaber@trash.net> Sun, 14 Aug 2005 17:32:50 -0700
> committer David S. Miller <davem@sunset.davemloft.net> Mon, 29 Aug 2005 15:58:36 -0700
>
> net/ipv4/netfilter/ipt_MASQUERADE.c | 5 -----
> 1 files changed, 0 insertions(+), 5 deletions(-)
>
> diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
> --- a/net/ipv4/netfilter/ipt_MASQUERADE.c
> +++ b/net/ipv4/netfilter/ipt_MASQUERADE.c
> @@ -86,11 +86,6 @@ masquerade_target(struct sk_buff **pskb,
>
> IP_NF_ASSERT(hooknum == NF_IP_POST_ROUTING);
>
> - /* FIXME: For the moment, don't do local packets, breaks
> - testsuite for 2.3.49 --RR */
> - if ((*pskb)->sk)
> - return NF_ACCEPT;
> -
> ct = ip_conntrack_get(*pskb, &ctinfo);
> IP_NF_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED
> || ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY));
>

Thanks, reverting this made things work again.

Are you confident in fixing this shortly, or should I just drop pump ?

--
J.A. Magallon <jamagallon()able!es> \ Software is like sex:
werewolf!able!es \ It's better when it's free
Mandriva Linux release 2006.0 (Cooker) for i586
Linux 2.6.13-jam3 (gcc 4.0.1 (4.0.1-5mdk for Mandriva Linux release 2006.0))