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ipv4: Add ip_defrag() agent IP_DEFRAG_AF_PACKET.

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Elide the ICMP on frag queue timeouts unconditionally for
this user.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-07-05 01:05:48 -07:00
parent dc99f60069
commit 595fc71baa
2 changed files with 5 additions and 3 deletions
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3
include/net/ip.h
View File

@ -404,7 +404,8 @@ enum ip_defrag_users {
__IP_DEFRAG_CONNTRACK_BRIDGE_IN = IP_DEFRAG_CONNTRACK_BRIDGE_IN + USHRT_MAX,
IP_DEFRAG_VS_IN,
IP_DEFRAG_VS_OUT,
IP_DEFRAG_VS_FWD
IP_DEFRAG_VS_FWD,
IP_DEFRAG_AF_PACKET,
};
int ip_defrag(struct sk_buff *skb, u32 user);

5
net/ipv4/ip_fragment.c
View File

@ -261,8 +261,9 @@ static void ip_expire(unsigned long arg)
* Only an end host needs to send an ICMP
* "Fragment Reassembly Timeout" message, per RFC792.
*/
if (qp->user == IP_DEFRAG_CONNTRACK_IN &&
skb_rtable(head)->rt_type != RTN_LOCAL)
if (qp->user == IP_DEFRAG_AF_PACKET ||
(qp->user == IP_DEFRAG_CONNTRACK_IN &&
skb_rtable(head)->rt_type != RTN_LOCAL))
goto out_rcu_unlock;