From beb010bf504f70b561b1ae8cd6da5e5e35b34d5f Mon Sep 17 00:00:00 2001
From: Ethan Jackson <ethan@nicira.com>
Date: Tue, 15 Nov 2011 18:35:26 -0800
Subject: [PATCH] flow: flow_extract() improperly parses IPv6 TOS bits.
This problem could cause userspace to automatically evict IPv6
flows from the datapath which had TOS bits set.
Bug #8323.
---
lib/flow.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/flow.c b/lib/flow.c
index fc09a77a7..519c87850 100644
--- a/lib/flow.c
+++ b/lib/flow.c
@@ -150,7 +150,7 @@ parse_ipv6(struct ofpbuf *packet, struct flow *flow)
flow->ipv6_dst = nh->ip6_dst;
tc_flow = get_unaligned_be32(&nh->ip6_flow);
- flow->nw_tos = (ntohl(tc_flow) >> 4) & IP_DSCP_MASK;
+ flow->nw_tos = (ntohl(tc_flow) >> 20) & IP_DSCP_MASK;
flow->nw_proto = IPPROTO_NONE;
while (1) {
--
2.47.0