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git.proxmox.com Git - ovs.git/blob - ofproto/netflow.h
2 * Copyright (c) 2008, 2009, 2010, 2011 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.
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 enum netflow_output_ports
{
42 NF_OUT_FLOOD
= UINT16_MAX
,
43 NF_OUT_MULTI
= UINT16_MAX
- 1,
44 NF_OUT_DROP
= UINT16_MAX
- 2
48 long long int last_expired
; /* Time this flow last timed out. */
49 long long int created
; /* Time flow was created since time out. */
51 uint64_t packet_count_off
; /* Packet count at last time out. */
52 uint64_t byte_count_off
; /* Byte count at last time out. */
54 uint16_t output_iface
; /* Output interface index. */
55 uint8_t tcp_flags
; /* Bitwise-OR of all TCP flags seen. */
58 struct netflow
*netflow_create(void);
59 void netflow_destroy(struct netflow
*);
60 int netflow_set_options(struct netflow
*, const struct netflow_options
*);
61 void netflow_expire(struct netflow
*, struct netflow_flow
*,
63 void netflow_run(struct netflow
*);
65 void netflow_flow_init(struct netflow_flow
*);
66 void netflow_flow_clear(struct netflow_flow
*);
67 void netflow_flow_update_time(struct netflow
*, struct netflow_flow
*,
69 void netflow_flow_update_flags(struct netflow_flow
*, uint8_t tcp_flags
);
70 bool netflow_active_timeout_expired(struct netflow
*, struct netflow_flow
*);
72 #endif /* netflow.h */