freebsd-dev/etc/rc.d/ipfw_netflow
Emmanuel Vadot 2a4727a472 ipfw_netflow: Add support for FIB
If ipfw_netflow_fib, the ipfw rule will only match packets in that FIB.

While here correct some value in rc.conf(5) to be int and not str.

Sponsored by:	Gandi.net
2017-07-18 14:02:02 +00:00

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#!/bin/sh
#
# $FreeBSD$
#
# PROVIDE: ipfw_netflow
# REQUIRE: ipfw
# KEYWORD: nojailvnet
. /etc/rc.subr
. /etc/network.subr
name="ipfw_netflow"
desc="firewall, ipfw, netflow"
rcvar="${name}_enable"
start_cmd="${name}_start"
stop_cmd="${name}_stop"
start_precmd="${name}_test"
status_cmd="${name}_status"
required_modules="ipfw ng_netflow ng_ipfw"
extra_commands="status"
: ${ipfw_netflow_hook:=9995}
: ${ipfw_netflow_rule:=01000}
: ${ipfw_netflow_ip:=127.0.0.1}
: ${ipfw_netflow_port:=9995}
: ${ipfw_netflow_version:=}
ipfw_netflow_test()
{
if [ "${ipfw_netflow_version}" != "" ] && [ "${ipfw_netflow_version}" != 9 ]; then
err 1 "Unknown netflow version \'${ipfw_netflow_version}\'"
fi
case "${ipfw_netflow_hook}" in
[!0-9]*)
err 1 "Bad value \"${ipfw_netflow_hook}\": Hook must be numerical"
esac
case "${ipfw_netflow_rule}" in
[!0-9]*)
err 1 "Bad value \"${ipfw_netflow_rule}\": Rule number must be numerical"
esac
}
ipfw_netflow_is_running()
{
ngctl show netflow: > /dev/null 2>&1 && return 0 || return 1
}
ipfw_netflow_status()
{
ipfw_netflow_is_running && echo "ipfw_netflow is active" || echo "ipfw_netflow is not active"
}
ipfw_netflow_start()
{
ipfw_netflow_is_running && err 1 "ipfw_netflow is already active"
ipfw add ${ipfw_netflow_rule} ngtee ${ipfw_netflow_hook} ip from any to any ${ipfw_netflow_fib:+fib ${ipfw_netflow_fib}}
ngctl -f - <<-EOF
mkpeer ipfw: netflow ${ipfw_netflow_hook} iface0
name ipfw:${ipfw_netflow_hook} netflow
mkpeer netflow: ksocket export${ipfw_netflow_version} inet/dgram/udp
msg netflow: setdlt {iface=0 dlt=12}
name netflow:export${ipfw_netflow_version} netflow_export
msg netflow:export${ipfw_netflow_version} connect inet/${ipfw_netflow_ip}:${ipfw_netflow_port}
EOF
}
ipfw_netflow_stop()
{
ipfw_netflow_is_running || err 1 "ipfw_netflow is not active"
ngctl shutdown netflow:
ipfw delete ${ipfw_netflow_rule}
}
load_rc_config $name
run_rc_command $*