/* Lookup connection and confirm if unconfirmed. */
static int ovs_ct_commit(struct net *net, struct sw_flow_key *key,
const struct ovs_conntrack_info *info,
struct sk_buff *skb)
{
u8 state;
int err;
state = key->ct.state;
if (key->ct.zone == info->zone.id &&
((state & OVS_CS_F_TRACKED) && !(state & OVS_CS_F_NEW))) {
/* Previous lookup has shown that this connection is already
* tracked and committed. Skip committing.
*/
return 0;
}
err = __ovs_ct_lookup(net, key, info, skb);
if (err)
return err;
if (nf_conntrack_confirm(skb) != NF_ACCEPT)
return -EINVAL;
ovs_ct_update_key(skb, key, true);
return 0;
}
/* Lookup connection and read fields into key. */
static int ovs_ct_lookup(struct net *net, struct sw_flow_key *key,
const struct ovs_conntrack_info *info,
struct sk_buff *skb)
{
struct nf_conntrack_expect *exp;
exp = ovs_ct_expect_find(net, &info->zone, info->family, skb);
if (exp) {
u8 state;
state = OVS_CS_F_TRACKED | OVS_CS_F_NEW | OVS_CS_F_RELATED;
__ovs_ct_update_key(key, state, &info->zone, exp->master);
} else {
int err;
err = __ovs_ct_lookup(net, key, info, skb);
if (err)
return err;
}
return 0;
}
