From: David S. Miller <davem@davemloft.net>
Date: Tue, 5 Jul 2011 08:05:48 +0000 (-0700)
Subject: ipv4: Add ip_defrag() agent IP_DEFRAG_AF_PACKET.
X-Git-Tag: v3.1-rc1~316^2~228
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=595fc71baa1e80420fe89a400ff2d9cc099d22fc;p=profile%2Fivi%2Fkernel-x86-ivi.git

ipv4: Add ip_defrag() agent IP_DEFRAG_AF_PACKET.

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

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/ip.h b/include/net/ip.h
index 9fa9416..aa76c7a 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -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);
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 0ad6035..0e0ab98 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -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;