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https://github.com/openvswitch/ovs
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9b658910ab
NetFlow v5 only supports IPv4, so don't bother un-wildcarding non-IPv4 packets. Signed-off-by: Justin Pettit <jpettit@nicira.com> Acked-by: Ethan Jackson <ethan@nicira.com>
75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
/*
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* Copyright (c) 2008, 2009, 2010, 2011, 2013 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef OFPROTO_NETFLOW_H
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#define OFPROTO_NETFLOW_H 1
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#include <stdint.h>
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#include "flow.h"
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#include "sset.h"
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/* Default active timeout interval, in seconds.
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*
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* (The active timeout interval is the interval at which NetFlow records are
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* sent for flows that do not expire, so that such flows are still
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* accounted.) */
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#define NF_ACTIVE_TIMEOUT_DEFAULT 600
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struct ofexpired;
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struct netflow_options {
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struct sset collectors;
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uint8_t engine_type;
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uint8_t engine_id;
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int active_timeout;
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bool add_id_to_iface;
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};
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#define NF_OUT_FLOOD OFP_PORT_C(UINT16_MAX)
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#define NF_OUT_MULTI OFP_PORT_C(UINT16_MAX - 1)
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#define NF_OUT_DROP OFP_PORT_C(UINT16_MAX - 2)
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struct netflow_flow {
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long long int last_expired; /* Time this flow last timed out. */
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long long int created; /* Time flow was created since time out. */
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uint64_t packet_count_off; /* Packet count at last time out. */
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uint64_t byte_count_off; /* Byte count at last time out. */
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ofp_port_t output_iface; /* Output interface index. */
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uint8_t tcp_flags; /* Bitwise-OR of all TCP flags seen. */
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};
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struct netflow *netflow_create(void);
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void netflow_destroy(struct netflow *);
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int netflow_set_options(struct netflow *, const struct netflow_options *);
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void netflow_expire(struct netflow *, struct netflow_flow *,
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struct ofexpired *);
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bool netflow_run(struct netflow *);
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void netflow_wait(struct netflow *);
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void netflow_mask_wc(struct flow *, struct flow_wildcards *);
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void netflow_flow_init(struct netflow_flow *);
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void netflow_flow_clear(struct netflow_flow *);
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void netflow_flow_update_time(struct netflow *, struct netflow_flow *,
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long long int used);
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void netflow_flow_update_flags(struct netflow_flow *, uint8_t tcp_flags);
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bool netflow_active_timeout_expired(struct netflow *, struct netflow_flow *);
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#endif /* netflow.h */
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