static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
static struct vlog_rate_limit dbg_rl = VLOG_RATE_LIMIT_INIT(60, 60);
-static struct tnl_port *tnl_find(struct tnl_match *) OVS_REQ_RDLOCK(rwlock);
+static struct tnl_port *tnl_find(const struct flow *) OVS_REQ_RDLOCK(rwlock);
static struct tnl_port *tnl_find_exact(struct tnl_match *)
OVS_REQ_RDLOCK(rwlock);
static struct tnl_port *tnl_find_ofport(const struct ofport_dpif *)
char *pre_flow_str = NULL;
const struct ofport_dpif *ofport;
struct tnl_port *tnl_port;
- struct tnl_match match;
-
- memset(&match, 0, sizeof match);
- match.odp_port = flow->in_port.odp_port;
- match.ip_src = flow->tunnel.ip_dst;
- match.ip_dst = flow->tunnel.ip_src;
- match.in_key = flow->tunnel.tun_id;
- match.pkt_mark = flow->pkt_mark;
ovs_rwlock_rdlock(&rwlock);
- tnl_port = tnl_find(&match);
+ tnl_port = tnl_find(flow);
ofport = tnl_port ? tnl_port->ofport : NULL;
if (!tnl_port) {
- struct ds ds = DS_EMPTY_INITIALIZER;
+ char *flow_str = flow_to_string(flow);
- tnl_match_fmt(&match, &ds);
- VLOG_WARN_RL(&rl, "receive tunnel port not found (%s)", ds_cstr(&ds));
- ds_destroy(&ds);
+ VLOG_WARN_RL(&rl, "receive tunnel port not found (%s)", flow_str);
+ free(flow_str);
goto out;
}
return NULL;
}
+/* Returns the tnl_port that is the best match for the tunnel data in 'flow',
+ * or NULL if no tnl_port matches 'flow'. */
static struct tnl_port *
-tnl_find(struct tnl_match *match_) OVS_REQ_RDLOCK(rwlock)
+tnl_find(const struct flow *flow) OVS_REQ_RDLOCK(rwlock)
{
- struct tnl_match match = *match_;
- struct tnl_port *tnl_port;
+ enum ip_src_type {
+ IP_SRC_CFG, /* ip_src must equal configured address. */
+ IP_SRC_ANY, /* Any ip_src is acceptable. */
+ IP_SRC_FLOW /* ip_src is handled in flow table. */
+ };
+
+ struct tnl_match_pattern {
+ bool in_key_flow;
+ bool ip_dst_flow;
+ enum ip_src_type ip_src;
+ };
+
+ static const struct tnl_match_pattern patterns[] = {
+ { false, false, IP_SRC_CFG }, /* remote_ip, local_ip, in_key. */
+ { false, false, IP_SRC_ANY }, /* remote_ip, in_key. */
+ { true, false, IP_SRC_CFG }, /* remote_ip, local_ip. */
+ { true, false, IP_SRC_ANY }, /* remote_ip. */
+ { true, true, IP_SRC_ANY }, /* Flow-based remote. */
+ { true, true, IP_SRC_FLOW }, /* Flow-based everything. */
+ };
+
+ const struct tnl_match_pattern *p;
+ struct tnl_match match;
- /* remote_ip, local_ip, in_key */
- tnl_port = tnl_find_exact(&match);
- if (tnl_port) {
- return tnl_port;
- }
+ memset(&match, 0, sizeof match);
+ match.odp_port = flow->in_port.odp_port;
+ match.pkt_mark = flow->pkt_mark;
- /* remote_ip, in_key */
- match.ip_src = 0;
- tnl_port = tnl_find_exact(&match);
- if (tnl_port) {
- return tnl_port;
- }
- match.ip_src = match_->ip_src;
+ for (p = patterns; p < &patterns[ARRAY_SIZE(patterns)]; p++) {
+ struct tnl_port *tnl_port;
- /* remote_ip, local_ip */
- match.in_key = 0;
- match.in_key_flow = true;
- tnl_port = tnl_find_exact(&match);
- if (tnl_port) {
- return tnl_port;
- }
+ match.in_key_flow = p->in_key_flow;
+ match.in_key = p->in_key_flow ? 0 : flow->tunnel.tun_id;
- /* remote_ip */
- match.ip_src = 0;
- tnl_port = tnl_find_exact(&match);
- if (tnl_port) {
- return tnl_port;
- }
+ match.ip_dst_flow = p->ip_dst_flow;
+ match.ip_dst = p->ip_dst_flow ? 0 : flow->tunnel.ip_src;
- /* Flow-based remote */
- match.ip_dst = 0;
- match.ip_dst_flow = true;
- tnl_port = tnl_find_exact(&match);
- if (tnl_port) {
- return tnl_port;
- }
+ match.ip_src_flow = p->ip_src == IP_SRC_FLOW;
+ match.ip_src = p->ip_src == IP_SRC_CFG ? flow->tunnel.ip_dst : 0;
- /* Flow-based everything */
- match.ip_src_flow = true;
- tnl_port = tnl_find_exact(&match);
- if (tnl_port) {
- return tnl_port;
+ tnl_port = tnl_find_exact(&match);
+ if (tnl_port) {
+ return tnl_port;
+ }
}
return NULL;