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2 * Copyright (c) 2008, 2009, 2010, 2011, 2013 Nicira, Inc.
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.
17 #ifndef OFPROTO_NETFLOW_H
18 #define OFPROTO_NETFLOW_H 1
24 /* Default active timeout interval, in seconds.
26 * (The active timeout interval is the interval at which NetFlow records are
27 * sent for flows that do not expire, so that such flows are still
29 #define NF_ACTIVE_TIMEOUT_DEFAULT 600
33 struct netflow_options
{
34 struct sset collectors
;
41 #define NF_OUT_FLOOD OFP_PORT_C(UINT16_MAX)
42 #define NF_OUT_MULTI OFP_PORT_C(UINT16_MAX - 1)
43 #define NF_OUT_DROP OFP_PORT_C(UINT16_MAX - 2)
46 long long int last_expired
; /* Time this flow last timed out. */
47 long long int created
; /* Time flow was created since time out. */
49 uint64_t packet_count_off
; /* Packet count at last time out. */
50 uint64_t byte_count_off
; /* Byte count at last time out. */
52 ofp_port_t output_iface
; /* Output interface index. */
53 uint8_t tcp_flags
; /* Bitwise-OR of all TCP flags seen. */
56 struct netflow
*netflow_create(void);
57 void netflow_destroy(struct netflow
*);
58 int netflow_set_options(struct netflow
*, const struct netflow_options
*);
59 void netflow_expire(struct netflow
*, struct netflow_flow
*,
62 bool netflow_run(struct netflow
*);
63 void netflow_wait(struct netflow
*);
65 void netflow_mask_wc(struct flow
*, struct flow_wildcards
*);
67 void netflow_flow_init(struct netflow_flow
*);
68 void netflow_flow_clear(struct netflow_flow
*);
69 void netflow_flow_update_time(struct netflow
*, struct netflow_flow
*,
71 void netflow_flow_update_flags(struct netflow_flow
*, uint8_t tcp_flags
);
72 bool netflow_active_timeout_expired(struct netflow
*, struct netflow_flow
*);
74 #endif /* netflow.h */