mirror of
https://github.com/openvswitch/ovs
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e0edde6fee
Replaced all instances of Nicira Networks(, Inc) to Nicira, Inc. Feature #10593 Signed-off-by: Raju Subramanian <rsubramanian@nicira.com> Signed-off-by: Ben Pfaff <blp@nicira.com>
81 lines
3.3 KiB
C
81 lines
3.3 KiB
C
/*
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* Copyright (c) 2008, 2009, 2010, 2011 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 NETFLOW_H
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#define NETFLOW_H 1
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/* NetFlow v5 protocol definitions. */
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#include <stdint.h>
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#include "openvswitch/types.h"
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#include "util.h"
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#define NETFLOW_V5_VERSION 5
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/* Every NetFlow v5 message contains the header that follows. This is
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* followed by up to thirty records that describe a terminating flow.
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* We only send a single record per NetFlow message.
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*/
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struct netflow_v5_header {
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ovs_be16 version; /* NetFlow version is 5. */
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ovs_be16 count; /* Number of records in this message. */
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ovs_be32 sysuptime; /* System uptime in milliseconds. */
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ovs_be32 unix_secs; /* Number of seconds since Unix epoch. */
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ovs_be32 unix_nsecs; /* Number of residual nanoseconds
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after epoch seconds. */
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ovs_be32 flow_seq; /* Number of flows since sending
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messages began. */
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uint8_t engine_type; /* Engine type. */
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uint8_t engine_id; /* Engine id. */
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ovs_be16 sampling_interval; /* Set to zero. */
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};
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BUILD_ASSERT_DECL(sizeof(struct netflow_v5_header) == 24);
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/* A NetFlow v5 description of a terminating flow. It is preceded by a
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* NetFlow v5 header.
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*/
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struct netflow_v5_record {
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ovs_be32 src_addr; /* Source IP address. */
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ovs_be32 dst_addr; /* Destination IP address. */
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ovs_be32 nexthop; /* IP address of next hop. Set to 0. */
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ovs_be16 input; /* Input interface index. */
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ovs_be16 output; /* Output interface index. */
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ovs_be32 packet_count; /* Number of packets. */
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ovs_be32 byte_count; /* Number of bytes. */
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ovs_be32 init_time; /* Value of sysuptime on first packet. */
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ovs_be32 used_time; /* Value of sysuptime on last packet. */
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/* The 'src_port' and 'dst_port' identify the source and destination
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* port, respectively, for TCP and UDP. For ICMP, the high-order
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* byte identifies the type and low-order byte identifies the code
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* in the 'dst_port' field. */
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ovs_be16 src_port;
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ovs_be16 dst_port;
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uint8_t pad1;
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uint8_t tcp_flags; /* Union of seen TCP flags. */
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uint8_t ip_proto; /* IP protocol. */
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uint8_t ip_tos; /* IP TOS value. */
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ovs_be16 src_as; /* Source AS ID. Set to 0. */
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ovs_be16 dst_as; /* Destination AS ID. Set to 0. */
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uint8_t src_mask; /* Source mask bits. Set to 0. */
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uint8_t dst_mask; /* Destination mask bits. Set to 0. */
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uint8_t pad[2];
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};
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BUILD_ASSERT_DECL(sizeof(struct netflow_v5_record) == 48);
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#endif /* lib/netflow.h */
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