netflow_v9.c File Reference

#include <sys/cdefs.h>
#include "opt_inet6.h"
#include "opt_route.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/counter.h>
#include <sys/kernel.h>
#include <sys/ktr.h>
#include <sys/limits.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/syslog.h>
#include <sys/socket.h>
#include <vm/uma.h>
#include <net/if.h>
#include <net/route.h>
#include <net/ethernet.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <netinet/tcp.h>
#include <netinet/udp.h>
#include <netgraph/ng_message.h>
#include <netgraph/netgraph.h>
#include <netgraph/netflow/netflow.h>
#include <netgraph/netflow/ng_netflow.h>
#include <netgraph/netflow/netflow_v9.h>

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Functions
	__FBSDID ("$FreeBSD$")
	MALLOC_DECLARE (M_NETFLOW_GENERAL)
	MALLOC_DEFINE (M_NETFLOW_GENERAL, "netflow_general", "plog, V9 templates data")
static void	generate_v9_templates (priv_p priv)
static void	close_flowset (struct mbuf *m, struct netflow_v9_packet_opt *t)
int	export9_send (priv_p priv, fib_export_p fe, item_p item, struct netflow_v9_packet_opt *t, int flags)
int	export9_add (item_p item, struct netflow_v9_packet_opt *t, struct flow_entry *fle)
item_p	get_export9_dgram (priv_p priv, fib_export_p fe, struct netflow_v9_packet_opt **tt)
void	return_export9_dgram (priv_p priv, fib_export_p fe, item_p item, struct netflow_v9_packet_opt *t, int flags)
void	ng_netflow_v9_cache_init (priv_p priv)
void	ng_netflow_v9_cache_flush (priv_p priv)
void	ng_netflow_copyv9info (priv_p priv, struct ng_netflow_v9info *i)

Variables
struct netflow_v9_template	_netflow_v9_record_ipv4_tcp []
struct netflow_v9_template	_netflow_v9_record_ipv6_tcp []

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

close_flowset()

static void close_flowset ( struct mbuf *  m, struct netflow_v9_packet_opt *  t  )

inlinestatic

Definition at line 172 of file netflow_v9.c.

References netflow_v9_packet_opt::flow_header, length, and m_pktlen.

Referenced by export9_add(), and export9_send().

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export9_add()

int export9_add	(	item_p	item,
		struct netflow_v9_packet_opt *	t,
		struct flow_entry *	fle
	)

Definition at line 241 of file netflow_v9.c.

References _NETFLOW_V9_MAX_SIZE, flow_entry_data::bytes, flow6_entry_data::bytes, close_flowset(), netflow_v9_packet_opt::count, netflow_v9_record_ipv4_tcp::d_port, netflow_v9_record_ipv6_tcp::d_port, flow6_rec::dst, netflow_v9_record_ipv4_tcp::dst_addr, netflow_v9_record_ipv6_tcp::dst_addr, netflow_v9_record_ipv4_tcp::dst_as, netflow_v9_record_ipv6_tcp::dst_as, netflow_v9_record_ipv4_tcp::dst_mask, netflow_v9_record_ipv6_tcp::dst_mask, flow_entry_data::dst_mask, flow6_entry_data::dst_mask, flow_entry::f, netflow_v9_record_ipv4_tcp::first, netflow_v9_record_ipv6_tcp::first, flow_entry_data::first, flow6_entry_data::first, netflow_v9_record_ipv4_tcp::flags, netflow_v9_record_ipv6_tcp::flags, flow_entry_data::fle_o_ifx, flow6_entry_data::fle_o_ifx, netflow_v9_packet_opt::flow_header, netflow_v9_packet_opt::flow_type, flow_rec::flow_type, netflow_v9_record_ipv4_tcp::i_ifx, netflow_v9_record_ipv6_tcp::i_ifx, netflow_v9_record_ipv4_tcp::i_octets, netflow_v9_record_ipv6_tcp::i_octets, netflow_v9_record_ipv4_tcp::i_packets, netflow_v9_record_ipv6_tcp::i_packets, netflow_v9_flowset_header::id, netflow_v9_record_ipv4_tcp::last, netflow_v9_record_ipv6_tcp::last, flow_entry_data::last, flow6_entry_data::last, netflow_v9_flowset_header::length, m_pktlen, MILLIUPTIME, netflow_v9_packet_opt::mtu, flow6_entry_data::n, NETFLOW_V9_FLOW_V4_L4, NETFLOW_V9_FLOW_V6_L4, NETFLOW_V9_MAX_RESERVED_FLOWSET, netflow_v9_record_ipv4_tcp::next_hop, netflow_v9_record_ipv6_tcp::next_hop, flow_entry_data::next_hop, flow6_entry_data::next_hop6, NGI_M, netflow_v9_record_ipv4_tcp::o_ifx, netflow_v9_record_ipv6_tcp::o_ifx, netflow_v9_record_ipv4_tcp::o_octets, netflow_v9_record_ipv6_tcp::o_octets, netflow_v9_record_ipv4_tcp::o_packets, netflow_v9_record_ipv6_tcp::o_packets, flow_entry_data::packets, flow6_entry_data::packets, netflow_v9_record_ipv4_tcp::prot, netflow_v9_record_ipv6_tcp::prot, flow_entry_data::r, flow6_entry_data::r, flow_rec::r_dst, flow6_rec::r_dst6, flow_rec::r_src, flow6_rec::r_src6, netflow_v9_record_general::rec, netflow_v9_record_ipv4_tcp::s_port, netflow_v9_record_ipv6_tcp::s_port, flow6_rec::src, netflow_v9_record_ipv4_tcp::src_addr, netflow_v9_record_ipv6_tcp::src_addr, netflow_v9_record_ipv4_tcp::src_as, netflow_v9_record_ipv6_tcp::src_as, netflow_v9_record_ipv4_tcp::src_mask, netflow_v9_record_ipv6_tcp::src_mask, flow_entry_data::src_mask, flow6_entry_data::src_mask, flow_entry_data::tcp_flags, flow6_entry_data::tcp_flags, netflow_v9_record_ipv4_tcp::tos, netflow_v9_record_ipv6_tcp::tos, netflow_v9_record_general::v4_tcp, and netflow_v9_record_general::v6_tcp.

Referenced by expire_flow().

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export9_send()

int export9_send	(	priv_p	priv,
		fib_export_p	fe,
		item_p	item,
		struct netflow_v9_packet_opt *	t,
		int	flags
	)

Definition at line 201 of file netflow_v9.c.

References close_flowset(), netflow_v9_packet_opt::count, fib_export::domain_id, flags, fib_export::flow9_seq, netflow_v9_packet_opt::flow_header, header, netflow_v9_export_dgram::header, m_pktlen, MILLIUPTIME, NG_FREE_ITEM, NG_FWD_ITEM_HOOK_FLAGS, and NGI_M.

Referenced by expire_flow(), ng_netflow_cache_flush(), and return_export9_dgram().

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generate_v9_templates()

static void generate_v9_templates ( priv_p  priv )

static

Definition at line 126 of file netflow_v9.c.

References _netflow_v9_record_ipv4_tcp, _netflow_v9_record_ipv6_tcp, _NETFLOW_V9_TEMPLATE_SIZE, netflow_v9_template::field_id, NETFLOW_V9_FLOW_V4_L4, NETFLOW_V9_FLOW_V6_L4, and NETFLOW_V9_MAX_RESERVED_FLOWSET.

Referenced by ng_netflow_v9_cache_init().

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get_export9_dgram()

item_p get_export9_dgram	(	priv_p	priv,
		fib_export_p	fe,
		struct netflow_v9_packet_opt **	tt
	)

Definition at line 369 of file netflow_v9.c.

References netflow_v9_header::count, netflow_v9_packet_opt::count, fib_export::exp, fib_export::export9_mtx, netflow_v9_packet_opt::flow_header, netflow_v9_export_dgram::header, netflow_export_item::item9, netflow_export_item::item9_opt, netflow_v9_flowset_header::length, mtu, netflow_v9_packet_opt::mtu, NETFLOW_V9, NG_NOFLAGS, ng_package_data(), fib_export::sent_packets, fib_export::templ_last_pkt, fib_export::templ_last_ts, and netflow_v9_header::version.

Referenced by expire_flow().

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MALLOC_DECLARE()

MALLOC_DECLARE

(

M_NETFLOW_GENERAL

)

MALLOC_DEFINE()

MALLOC_DEFINE	(	M_NETFLOW_GENERAL	,
		"netflow_general"	,
		"	plog,
		V9 templates data"
	)

ng_netflow_copyv9info()

void ng_netflow_copyv9info	(	priv_p	priv,
		struct ng_netflow_v9info *	i
	)

Definition at line 484 of file netflow_v9.c.

References ng_netflow_v9info::mtu, ng_netflow_v9info::templ_packets, and ng_netflow_v9info::templ_time.

Referenced by ng_netflow_rcvmsg().

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ng_netflow_v9_cache_flush()

void ng_netflow_v9_cache_flush

(

priv_p

priv

)

Definition at line 473 of file netflow_v9.c.

Referenced by ng_netflow_cache_flush().

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ng_netflow_v9_cache_init()

void ng_netflow_v9_cache_init

(

priv_p

priv

)

Definition at line 462 of file netflow_v9.c.

References BASE_MTU, generate_v9_templates(), NETFLOW_V9_MAX_PACKETS_TEMPL, and NETFLOW_V9_MAX_TIME_TEMPL.

Referenced by ng_netflow_cache_init().

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return_export9_dgram()

void return_export9_dgram	(	priv_p	priv,
		fib_export_p	fe,
		item_p	item,
		struct netflow_v9_packet_opt *	t,
		int	flags
	)

Definition at line 442 of file netflow_v9.c.

References fib_export::exp, fib_export::export9_mtx, export9_send(), flags, netflow_export_item::item9, and netflow_export_item::item9_opt.

Referenced by expire_flow().

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Variable Documentation

_netflow_v9_record_ipv4_tcp

struct netflow_v9_template _netflow_v9_record_ipv4_tcp[]

Initial value:

=
{
        { NETFLOW_V9_FIELD_IPV4_SRC_ADDR, 4},
        { NETFLOW_V9_FIELD_IPV4_DST_ADDR, 4},
        { NETFLOW_V9_FIELD_IPV4_NEXT_HOP, 4},
        { NETFLOW_V9_FIELD_INPUT_SNMP, 2},
        { NETFLOW_V9_FIELD_OUTPUT_SNMP, 2},
        { NETFLOW_V9_FIELD_IN_PKTS, sizeof(CNTR)},
        { NETFLOW_V9_FIELD_IN_BYTES, sizeof(CNTR)},
        { NETFLOW_V9_FIELD_OUT_PKTS, sizeof(CNTR)},
        { NETFLOW_V9_FIELD_OUT_BYTES, sizeof(CNTR)},
        { NETFLOW_V9_FIELD_FIRST_SWITCHED, 4},
        { NETFLOW_V9_FIELD_LAST_SWITCHED, 4},
        { NETFLOW_V9_FIELD_L4_SRC_PORT, 2},
        { NETFLOW_V9_FIELD_L4_DST_PORT, 2},
        { NETFLOW_V9_FIELD_TCP_FLAGS, 1},
        { NETFLOW_V9_FIELD_PROTOCOL, 1},
        { NETFLOW_V9_FIELD_TOS, 1},
        { NETFLOW_V9_FIELD_SRC_AS, 4},
        { NETFLOW_V9_FIELD_DST_AS, 4},
        { NETFLOW_V9_FIELD_SRC_MASK, 1},
        { NETFLOW_V9_FIELD_DST_MASK, 1},
        {0, 0}
}

Definition at line 71 of file netflow_v9.c.

Referenced by generate_v9_templates().

_netflow_v9_record_ipv6_tcp

struct netflow_v9_template _netflow_v9_record_ipv6_tcp[]

Initial value:

=
{
        { NETFLOW_V9_FIELD_IPV6_SRC_ADDR, 16},
        { NETFLOW_V9_FIELD_IPV6_DST_ADDR, 16},
        { NETFLOW_V9_FIELD_IPV6_NEXT_HOP, 16},
        { NETFLOW_V9_FIELD_INPUT_SNMP, 2},
        { NETFLOW_V9_FIELD_OUTPUT_SNMP, 2},
        { NETFLOW_V9_FIELD_IN_PKTS, sizeof(CNTR)},
        { NETFLOW_V9_FIELD_IN_BYTES, sizeof(CNTR)},
        { NETFLOW_V9_FIELD_OUT_PKTS, sizeof(CNTR)},
        { NETFLOW_V9_FIELD_OUT_BYTES, sizeof(CNTR)},
        { NETFLOW_V9_FIELD_FIRST_SWITCHED, 4},
        { NETFLOW_V9_FIELD_LAST_SWITCHED, 4},
        { NETFLOW_V9_FIELD_L4_SRC_PORT, 2},
        { NETFLOW_V9_FIELD_L4_DST_PORT, 2},
        { NETFLOW_V9_FIELD_TCP_FLAGS, 1},
        { NETFLOW_V9_FIELD_PROTOCOL, 1},
        { NETFLOW_V9_FIELD_TOS, 1},
        { NETFLOW_V9_FIELD_SRC_AS, 4},
        { NETFLOW_V9_FIELD_DST_AS, 4},
        { NETFLOW_V9_FIELD_SRC_MASK, 1},
        { NETFLOW_V9_FIELD_DST_MASK, 1},
        {0, 0}
}

Definition at line 96 of file netflow_v9.c.

Referenced by generate_v9_templates().