linux-kernel - [PATCH 4.9 08/59] net/sched: cls_flower: Fix missing addr

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Date:   Fri, 13 Jan 2017 13:01:15 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Paul Blakey <paulb@...lanox.com>,
        Hadar Hen Zion <hadarh@...lanox.com>,
        Jiri Pirko <jiri@...lanox.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.9 08/59] net/sched: cls_flower: Fix missing addr_type in classify

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

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

From: Paul Blakey <paulb@...lanox.com>


[ Upstream commit 0df0f207aab4f42e5c96a807adf9a6845b69e984 ]

Since we now use a non zero mask on addr_type, we are matching on its
value (IPV4/IPV6). So before this fix, matching on enc_src_ip/enc_dst_ip
failed in SW/classify path since its value was zero.
This patch sets the proper value of addr_type for encapsulated packets.

Fixes: 970bfcd09791 ('net/sched: cls_flower: Use mask for addr_type')
Signed-off-by: Paul Blakey <paulb@...lanox.com>
Reviewed-by: Hadar Hen Zion <hadarh@...lanox.com>
Acked-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/sched/cls_flower.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -149,10 +149,14 @@ static int fl_classify(struct sk_buff *s
 
 		switch (ip_tunnel_info_af(info)) {
 		case AF_INET:
+			skb_key.enc_control.addr_type =
+				FLOW_DISSECTOR_KEY_IPV4_ADDRS;
 			skb_key.enc_ipv4.src = key->u.ipv4.src;
 			skb_key.enc_ipv4.dst = key->u.ipv4.dst;
 			break;
 		case AF_INET6:
+			skb_key.enc_control.addr_type =
+				FLOW_DISSECTOR_KEY_IPV6_ADDRS;
 			skb_key.enc_ipv6.src = key->u.ipv6.src;
 			skb_key.enc_ipv6.dst = key->u.ipv6.dst;
 			break;