If the encap_dl_type is set then it indicates information about the
dl_type of an encapsulated frame and should be used when decoding
L3 and L4 information.
Signed-off-by: Simon Horman <ho...@verge.net.au>
---
lib/packets.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/lib/packets.c b/lib/packets.c
index 59a6a61..844c0ec 100644
--- a/lib/packets.c
+++ b/lib/packets.c
@@ -976,8 +976,10 @@ packet_set_udp_port(struct ofpbuf *packet, ovs_be16 src,
ovs_be16 dst)
uint8_t
packet_get_tcp_flags(const struct ofpbuf *packet, const struct flow *flow)
{
- if ((flow->dl_type == htons(ETH_TYPE_IP) ||
- flow->dl_type == htons(ETH_TYPE_IPV6)) &&
+ ovs_be16 dl_type = flow->encap_dl_type
+ ? flow->encap_dl_type
+ : flow->dl_type;
+ if ((dl_type == htons(ETH_TYPE_IP) || dl_type == htons(ETH_TYPE_IPV6)) &&
flow->nw_proto == IPPROTO_TCP && packet->l7) {
const struct tcp_header *tcp = packet->l4;
return TCP_FLAGS(tcp->tcp_ctl);
--
1.7.10.4
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