linux-kernel - [PATCH 3.14 075/140] ipv4: return valid RTA

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Message-Id: <20140529043059.190971861@linuxfoundation.org>
Date:	Wed, 28 May 2014 21:33:34 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Julian Anastasov <ja@....bg>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 3.14 075/140] ipv4: return valid RTA_IIF on ip route get

3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Julian Anastasov <ja@....bg>

[ Upstream commit 91146153da2feab18efab2e13b0945b6bb704ded ]

Extend commit 13378cad02afc2adc6c0e07fca03903c7ada0b37
("ipv4: Change rt->rt_iif encoding.") from 3.6 to return valid
RTA_IIF on 'ip route get ... iif DEVICE' instead of rt_iif 0
which is displayed as 'iif *'.

inet_iif is not appropriate to use because skb_iif is not set.
Use the skb->dev->ifindex instead.

Signed-off-by: Julian Anastasov <ja@....bg>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/ipv4/route.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2364,7 +2364,7 @@ static int rt_fill_info(struct net *net,
 			}
 		} else
 #endif
-			if (nla_put_u32(skb, RTA_IIF, rt->rt_iif))
+			if (nla_put_u32(skb, RTA_IIF, skb->dev->ifindex))
 				goto nla_put_failure;
 	}
 


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