2 * Copyright (c) 2008, 2009 Nicira Networks.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
23 static const int NF_ACTIVE_TIMEOUT_DEFAULT = 600;
27 struct netflow_options {
28 struct svec collectors;
35 enum netflow_output_ports {
36 NF_OUT_FLOOD = UINT16_MAX,
37 NF_OUT_MULTI = UINT16_MAX - 1,
38 NF_OUT_DROP = UINT16_MAX - 2
42 long long int last_expired; /* Time this flow last timed out. */
43 long long int created; /* Time flow was created since time out. */
45 uint64_t packet_count_off; /* Packet count at last time out. */
46 uint64_t byte_count_off; /* Byte count at last time out. */
48 uint16_t output_iface; /* Output interface index. */
49 uint8_t ip_tos; /* Last-seen IP type-of-service. */
50 uint8_t tcp_flags; /* Bitwise-OR of all TCP flags seen. */
53 struct netflow *netflow_create(void);
54 void netflow_destroy(struct netflow *);
55 int netflow_set_options(struct netflow *, const struct netflow_options *);
56 void netflow_expire(struct netflow *, struct netflow_flow *,
58 void netflow_run(struct netflow *);
60 void netflow_flow_clear(struct netflow_flow *);
61 void netflow_flow_update_time(struct netflow *, struct netflow_flow *,
63 void netflow_flow_update_flags(struct netflow_flow *, uint8_t ip_tos,
65 bool netflow_active_timeout_expired(struct netflow *, struct netflow_flow *);
67 #endif /* netflow.h */