freebsd-dev/etc/rc.d/dhclient
Brooks Davis 8e9e71f817 Support code for the OpenBSD dhclient. This significantly changes the
way interfaces are configured.  Some key points:

  - At startup, all interfaces are configured through /etc/rc.d/netif.
  - ifconfig_<if> variables my now mix real ifconfig commands the with
    DHCP and WPA directives.  For example, this allows media
    configuration prior to running dhclient.
  - /etc/rc.d/dhclient is not run at startup except by netif to start
    dhclient on specific interfaces.
  - /etc/pccard_ether calls "/etc/rc.d/netif start <if>" to do most of
    it's work.
  - /etc/pccard_ether no longer takes additional arguments to pass to
    ifconfig.  Instead, ifconfig_<if> variables are now honored in favor
    of pccard_ifconfig when available.
  - /etc/pccard_ether will only run on interfaces specified in
    removable_interfaces, even if pccard_ifconfig is set.
2005-06-07 04:49:12 +00:00

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#!/bin/sh
#
# $NetBSD: dhclient,v 1.8 2002/03/22 04:33:58 thorpej Exp $
# $FreeBSD$
#
# PROVIDE: dhclient
# REQUIRE: netif ipfw ipfilter mountcritlocal cleanvar
# BEFORE: NETWORKING
# KEYWORD: nojail nostart
#
. /etc/rc.subr
. /etc/network.subr
name="dhclient"
rcvar=
start_cmd="dhclient_start"
stop_cmd="dhclient_stop"
dhclient_start()
{
# prevent unnecessicary restarts
# XXX: should use a pidfile
if [ -x /usr/bin/pgrep ]; then
pids=`/usr/bin/pgrep -f "dhclient: $ifn(\$| .*)"`
if [ -n "$pids" ]; then
echo "${name} ${ifn}: already running?"
exit 0
fi
fi
if checkyesno background_dhclient; then
rc_flags="${rc_flags} -b"
fi
${dhclient_program} ${rc_flags} $ifn
}
dhclient_stop()
{
ifconfig $ifn down # cause dhclient to die
}
ifn="$2"
load_rc_config $name
if ! dhcpif $ifn; then
return 1
fi
run_rc_command "$1"