openvswitch: Fixed nd target mask field in the flow dump.

commit f19c44452b58a84d95e209b847f5495d91c9983a upstream.

IPv6 nd target mask was not getting populated in flow dump.

In the function __ovs_nla_put_key the icmp code mask field was checked
instead of icmp code key field to classify the flow as neighbour discovery.

ufid:bdfbe3e5-60c2-43b0-a5ff-dfcac1c37328, recirc_id(0),dp_hash(0/0),
skb_priority(0/0),in_port(ovs-nm1),skb_mark(0/0),ct_state(0/0),
ct_zone(0/0),ct_mark(0/0),ct_label(0/0),
eth(src=00:00:00:00:00:00/00:00:00:00:00:00,
dst=00:00:00:00:00:00/00:00:00:00:00:00),
eth_type(0x86dd),
ipv6(src=::/::,dst=::/::,label=0/0,proto=58,tclass=0/0,hlimit=0/0,frag=no),
icmpv6(type=135,code=0),
nd(target=2001::2/::,
sll=00:00:00:00:00:00/00:00:00:00:00:00,
tll=00:00:00:00:00:00/00:00:00:00:00:00),
packets:10, bytes:860, used:0.504s, dp:ovs, actions:ovs-nm2

Fixes: e64457191a25 (openvswitch: Restructure datapath.c and flow.c)
Signed-off-by: Martin Varghese <martin.varghese@nokia.com>
Link: https://lore.kernel.org/r/20220328054148.3057-1-martinvarghesenokia@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index fd1f809e9bc1b877b4810ca10de39ced1946b043..0d677c9c2c805abc5e7911ba1a38da4107fa5a87 100644 (file)
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -2201,8 +2201,8 @@ static int __ovs_nla_put_key(const struct sw_flow_key *swkey,
                        icmpv6_key->icmpv6_type = ntohs(output->tp.src);
                        icmpv6_key->icmpv6_code = ntohs(output->tp.dst);
 
-                       if (icmpv6_key->icmpv6_type == NDISC_NEIGHBOUR_SOLICITATION ||
-                           icmpv6_key->icmpv6_type == NDISC_NEIGHBOUR_ADVERTISEMENT) {
+                       if (swkey->tp.src == htons(NDISC_NEIGHBOUR_SOLICITATION) ||
+                           swkey->tp.src == htons(NDISC_NEIGHBOUR_ADVERTISEMENT)) {
                                struct ovs_key_nd *nd_key;
 
                                nla = nla_reserve(skb, OVS_KEY_ATTR_ND, sizeof(*nd_key));