1219182Sglebius/*- 2219182Sglebius * Copyright (c) 2010 Alexander V. Chernikov <melifaro@ipfw.ru> 3219182Sglebius * All rights reserved. 4219182Sglebius * 5219182Sglebius * Redistribution and use in source and binary forms, with or without 6219182Sglebius * modification, are permitted provided that the following conditions 7219182Sglebius * are met: 8219182Sglebius * 1. Redistributions of source code must retain the above copyright 9219182Sglebius * notice, this list of conditions and the following disclaimer. 10219182Sglebius * 2. Redistributions in binary form must reproduce the above copyright 11219182Sglebius * notice, this list of conditions and the following disclaimer in the 12219182Sglebius * documentation and/or other materials provided with the distribution. 13219182Sglebius * 14219182Sglebius * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15219182Sglebius * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16219182Sglebius * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17219182Sglebius * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18219182Sglebius * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19219182Sglebius * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20219182Sglebius * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21219182Sglebius * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22219182Sglebius * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23219182Sglebius * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24219182Sglebius * SUCH DAMAGE. 25219182Sglebius * 26219182Sglebius * $FreeBSD$ 27219182Sglebius */ 28219182Sglebius 29219182Sglebius#ifndef _NETFLOW_V9_H_ 30219182Sglebius#define _NETFLOW_V9_H_ 31219182Sglebius 32219182Sglebius#ifdef COUNTERS_64 33219182Sglebius#define CNTR uint64_t 34219182Sglebius#define CNTR_MAX UINT64_MAX 35219182Sglebius#else 36219182Sglebius#define CNTR uint32_t 37219182Sglebius#define CNTR_MAX UINT_MAX 38219182Sglebius#endif 39219182Sglebius 40219182Sglebiusstruct netflow_v9_template 41219182Sglebius{ 42219182Sglebius int field_id; 43219182Sglebius int field_length; 44219182Sglebius}; 45219182Sglebius 46219182Sglebius/* Template ID for tcp/udp v4 streams ID:257 (0x100 + NETFLOW_V9_FLOW_V4_L4) */ 47219182Sglebiusstruct netflow_v9_record_ipv4_tcp 48219182Sglebius{ 49219182Sglebius uint32_t src_addr; /* Source IPv4 address (IPV4_SRC_ADDR) */ 50219182Sglebius uint32_t dst_addr; /* Destination IPv4 address (IPV4_DST_ADDR) */ 51219182Sglebius uint32_t next_hop; /* Next hop IPv4 address (IPV4_NEXT_HOP) */ 52219182Sglebius uint16_t i_ifx; /* Source interface index (INPUT_SNMP) */ 53219182Sglebius uint16_t o_ifx; /* Destination interface index (OUTPUT_SNMP) */ 54219182Sglebius CNTR i_packets; /* Number of incoming packets in a flow (IN_PKTS) */ 55219182Sglebius CNTR i_octets; /* Number of incoming octets in a flow (IN_BYTES) */ 56219182Sglebius CNTR o_packets; /* Number of outgoing packets in a flow (OUT_PKTS) */ 57219182Sglebius CNTR o_octets; /* Number of outgoing octets in a flow (OUT_BYTES) */ 58219182Sglebius uint32_t first; /* System uptime at start of a flow (FIRST_SWITCHED) */ 59219182Sglebius uint32_t last; /* System uptime at end of a flow (LAST_SWITCHED) */ 60219182Sglebius uint16_t s_port; /* Source port (L4_SRC_PORT) */ 61219182Sglebius uint16_t d_port; /* Destination port (L4_DST_PORT) */ 62219182Sglebius uint8_t flags; /* Cumulative OR of tcp flags (TCP_FLAGS) */ 63219182Sglebius uint8_t prot; /* IP protocol */ 64219182Sglebius uint8_t tos; /* IP type of service IN (or OUT) (TOS) */ 65219182Sglebius uint32_t src_as; /* Src peer/origin Autonomous System (SRC_AS) */ 66219182Sglebius uint32_t dst_as; /* Dst peer/origin Autonomous System (DST_AS) */ 67219182Sglebius uint8_t src_mask; /* Source route's mask bits (SRC_MASK) */ 68219182Sglebius uint8_t dst_mask; /* Destination route's mask bits (DST_MASK) */ 69219182Sglebius} __attribute__((__packed__)); 70219182Sglebius 71219182Sglebius/* Template ID for tcp/udp v6 streams ID: 260 (0x100 + NETFLOW_V9_FLOW_V6_L4) */ 72219182Sglebiusstruct netflow_v9_record_ipv6_tcp 73219182Sglebius{ 74219182Sglebius struct in6_addr src_addr; /* Source IPv6 address (IPV6_SRC_ADDR) */ 75219182Sglebius struct in6_addr dst_addr; /* Destination IPv6 address (IPV6_DST_ADDR) */ 76219182Sglebius struct in6_addr next_hop; /* Next hop IPv6 address (IPV6_NEXT_HOP) */ 77219182Sglebius uint16_t i_ifx; /* Source interface index (INPUT_SNMP) */ 78219182Sglebius uint16_t o_ifx; /* Destination interface index (OUTPUT_SNMP) */ 79219182Sglebius CNTR i_packets; /* Number of incoming packets in a flow (IN_PKTS) */ 80219182Sglebius CNTR i_octets; /* Number of incoming octets in a flow (IN_BYTES) */ 81219182Sglebius CNTR o_packets; /* Number of outgoing packets in a flow (OUT_PKTS) */ 82219182Sglebius CNTR o_octets; /* Number of outgoing octets in a flow (OUT_BYTES) */ 83219182Sglebius uint32_t first; /* System uptime at start of a flow (FIRST_SWITCHED) */ 84219182Sglebius uint32_t last; /* System uptime at end of a flow (LAST_SWITCHED) */ 85219182Sglebius uint16_t s_port; /* Source port (L4_SRC_PORT) */ 86219182Sglebius uint16_t d_port; /* Destination port (L4_DST_PORT) */ 87219182Sglebius uint8_t flags; /* Cumulative OR of tcp flags (TCP_FLAGS) */ 88219182Sglebius uint8_t prot; /* IP protocol */ 89219182Sglebius uint8_t tos; /* IP type of service IN (or OUT) (TOS) */ 90219182Sglebius uint32_t src_as; /* Src peer/origin Autonomous System (SRC_AS) */ 91219182Sglebius uint32_t dst_as; /* Dst peer/origin Autonomous System (DST_AS) */ 92219182Sglebius uint8_t src_mask; /* Source route's mask bits (SRC_MASK) */ 93219182Sglebius uint8_t dst_mask; /* Destination route's mask bits (DST_MASK) */ 94219182Sglebius} __attribute__((__packed__)); 95219182Sglebius 96219182Sglebius/* Used in export9_add to determine max record size */ 97219182Sglebiusstruct netflow_v9_record_general 98219182Sglebius{ 99219182Sglebius union { 100219182Sglebius struct netflow_v9_record_ipv4_tcp v4_tcp; 101219182Sglebius struct netflow_v9_record_ipv6_tcp v6_tcp; 102219182Sglebius } rec; 103219182Sglebius}; 104219182Sglebius 105219182Sglebius#define BASE_MTU 1500 106219182Sglebius#define MIN_MTU sizeof(struct netflow_v5_header) 107219182Sglebius#define MAX_MTU 16384 108219182Sglebius#define NETFLOW_V9_MAX_SIZE _NETFLOW_V9_MAX_SIZE(BASE_MTU) 109219182Sglebius/* Decrease MSS by 16 since there can be some IPv[46] header options */ 110219182Sglebius#define _NETFLOW_V9_MAX_SIZE(x) (x) - sizeof(struct ip6_hdr) - sizeof(struct udphdr) - 16 111219182Sglebius 112219182Sglebius/* #define NETFLOW_V9_MAX_FLOWSETS 2 */ 113219182Sglebius 114219182Sglebius#define NETFLOW_V9_MAX_RECORD_SIZE sizeof(struct netflow_v9_record_ipv6_tcp) 115219182Sglebius#define NETFLOW_V9_MAX_PACKETS_TEMPL 500 /* Send data templates every ... packets */ 116219182Sglebius#define NETFLOW_V9_MAX_TIME_TEMPL 600 /* Send data templates every ... seconds */ 117219182Sglebius#define NETFLOW_V9_MAX_TEMPLATES 16 /* Not a real value */ 118219182Sglebius#define _NETFLOW_V9_TEMPLATE_SIZE(x) (sizeof(x) / sizeof(struct netflow_v9_template)) * 4 119219182Sglebius//#define _NETFLOW_V9_TEMPLATE_SIZE(x) ((x) + 1) * 4 120219182Sglebius 121219182Sglebius/* Flow Templates */ 122219182Sglebius#define NETFLOW_V9_FLOW_V4_L4 1 /* IPv4 TCP/UDP packet */ 123219182Sglebius#define NETFLOW_V9_FLOW_V4_ICMP 2 /* IPv4 ICMP packet, currently unused */ 124219182Sglebius#define NETFLOW_V9_FLOW_V4_L3 3 /* IPv4 IP packet */ 125219182Sglebius#define NETFLOW_V9_FLOW_V6_L4 4 /* IPv6 TCP/UDP packet */ 126219182Sglebius#define NETFLOW_V9_FLOW_V6_ICMP 5 /* IPv6 ICMP packet, currently unused */ 127219182Sglebius#define NETFLOW_V9_FLOW_V6_L3 6 /* IPv6 IP packet */ 128219182Sglebius 129219182Sglebius#define NETFLOW_V9_FLOW_FAKE 65535 /* Not uset used in real flowsets! */ 130219182Sglebius 131219182Sglebiusstruct netflow_v9_export_dgram { 132219182Sglebius struct netflow_v9_header header; 133219182Sglebius char *data; /* MTU can change, record length is dynamic */ 134219182Sglebius}; 135219182Sglebius 136219182Sglebiusstruct netflow_v9_flowset_header { 137219182Sglebius uint16_t id; /* FlowSet id */ 138219182Sglebius uint16_t length; /* FlowSet length */ 139219182Sglebius} __attribute__((__packed__)); 140219182Sglebius 141219182Sglebiusstruct netflow_v9_packet_opt { 142219182Sglebius uint16_t length; /* current packet length */ 143219182Sglebius uint16_t count; /* current records count */ 144219182Sglebius uint16_t mtu; /* max MTU shapshot */ 145219182Sglebius uint16_t flow_type; /* current flowset */ 146219182Sglebius uint16_t flow_header; /* offset pointing to current flow header */ 147219182Sglebius}; 148219182Sglebius#endif 149