jow a8ce2d5f8c isc-dhcp: dhcrelay: Add more UCI options
Add more options to dhcrelay UCI and init script:

- enabled
- interfaces: Listen interfaces
- relay_mode: What to do about packets that already have a relay option

Also mark /etc/config/dhcrelay as conffile

Signed-off-by: Bruno Randolf <br1@einfach.org>

git-svn-id: svn://svn.openwrt.org/openwrt/packages@38446 3c298f89-4303-0410-b956-a3cf2f4a3e73
2013-10-18 11:39:56 +00:00

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#!/bin/sh /etc/rc.common
# Copyright (C) 2012 OpenWrt.org
START=91
SERVICE_SIG="KILL"
SERVICE_PID_FILE="/var/run/dhcrelay4.pid"
SERVICE_USE_PID=1
start() {
. /lib/functions/network.sh
config_load dhcrelay
local args=""
local enabled
config_get_bool enabled ipv4 enabled 0
[ "$enabled" -eq 0 ] && return 0
# listen interfaces
local interfaces
local ifname
config_get interfaces ipv4 interfaces
for net in $interfaces; do
if network_get_device ifname "$net"; then
append args "-i $ifname"
fi
done
# relay mode
local relay_mode
config_get relay_mode ipv4 relay_mode
[ -n "$relay_mode" ] && append args "-m $relay_mode"
# dhcp server address
local server
config_get server ipv4 dhcpserver
[ -n "$server" ] || return 0
append args "$server"
service_start /usr/sbin/dhcrelay -4 -q \
-pf $SERVICE_PID_FILE $args
}
stop() {
service_stop /usr/sbin/dhcrelay
}