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# Copyright (c) 2004-2006 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# Contributed by Roy Marples (uberlord@gentoo.org)
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# void dhcpcd_depend(void)
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#
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# Sets up the dependancies for the module
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dhcpcd_depend() {
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after interface
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provide dhcp
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functions interface_exists interface_get_address
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}
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# void dhcpcd_expose(void)
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#
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# Expose variables that can be configured
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dhcpcd_expose() {
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variables dhcpcd dhcp
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}
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# bool dhcpcd_check_installed(void)
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#
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# Returns 1 if dhcpcd is installed, otherwise 0
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dhcpcd_check_installed() {
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[[ -x /sbin/dhcpcd ]] && return 0
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${1:-false} && eerror "For DHCP (dhcpcd) support, emerge net-misc/dhcpcd"
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return 1
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}
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# bool dhcpcd_stop(char *iface)
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#
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# Stop DHCP on an interface by calling dhcpcd -z $iface
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#
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# Returns 0 (true) when a DHCP address dropped
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# otherwise return 1
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dhcpcd_stop() {
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local iface=$1 signal= pidfile="/var/run/dhcpcd-$1.pid" d=
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[[ ! -f ${pidfile} ]] && return 0
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ebegin "Stopping dhcpcd on ${iface}"
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local ifvar=$(bash_variable "${iface}")
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d="dhcp_${ifvar}"
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d=" ${!d} "
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[[ ${d} == " " ]] && d=" ${dhcp} "
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if [[ ${d} == *" release "* ]] ; then
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/sbin/dhcpcd -k "${iface}"
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else
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start-stop-daemon --stop --exec /sbin/dhcpcd --pidfile "${pidfile}"
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fi
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eend $?
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}
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# bool dhcpcd_start(char *iface)
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#
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# Start DHCP on an interface by calling dhcpcd $iface $options
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#
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# Returns 0 (true) when a DHCP address is obtained, otherwise 1
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dhcpcd_start() {
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local iface="$1" opts= pidfile="/var/run/dhcpcd-$1.pid"
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local ifvar=$(bash_variable "${iface}") metric= d=
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interface_exists "${iface}" true || return 1
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# Get our options
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opts="dhcpcd_${ifvar}"
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opts="${!opts}"
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# Map some generic options to dhcpcd
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d="dhcp_${ifvar}"
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d=" ${!d} "
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[[ ${d} == " " ]] && d=" ${dhcp} "
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[[ ${d} == *" nodns "* ]] && opts="${opts} -R"
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[[ ${d} == *" nontp "* ]] && opts="${opts} -N"
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[[ ${d} == *" nonis "* ]] && opts="${opts} -Y"
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[[ ${d} == *" nogateway "* ]] && opts="${opts} -G"
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# We transmit the hostname by default
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if [[ " ${d} " != *" nosendhost "* && " ${opts} " != *" -h "* ]]; then
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local hname=$(hostname)
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[[ -n ${hname} && ${hname} != "(none)" && ${hname} != "localhost" ]] \
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&& opts="-h \"${hname}\" ${opts}"
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fi
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# Add our route metric
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metric="metric_${ifvar}"
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[[ -n ${!metric} && ${!metric} != "0" ]] && opts="${opts} -m ${!metric}"
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# Bring up DHCP for this interface (or alias)
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ebegin "Running dhcpcd"
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eval /sbin/dhcpcd "${opts}" "${iface}"
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eend $? || return 1
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# DHCP succeeded, show address retrieved
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local addr=$(interface_get_address "${iface}")
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einfo "${iface} received address ${addr}"
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return 0
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}
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# vim: set ts=4 :
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