|
|
|
@ -2,55 +2,67 @@ |
|
|
|
|
# Copyright (C) 2006 OpenWrt.org |
|
|
|
|
|
|
|
|
|
START=60 |
|
|
|
|
start() { |
|
|
|
|
include /lib/network |
|
|
|
|
scan_interfaces |
|
|
|
|
|
|
|
|
|
# The following is to automatically configure the DHCP settings |
|
|
|
|
# based on config settings. Feel free to replace all this crap |
|
|
|
|
# with a simple "dnsmasq" and manage everything via the |
|
|
|
|
# /etc/dnsmasq.conf config file |
|
|
|
|
dhcp_calc() { |
|
|
|
|
local ip="$1" |
|
|
|
|
local res=0 |
|
|
|
|
|
|
|
|
|
[ -f /etc/dnsmasq.conf ] || exit |
|
|
|
|
while [ -n "$ip" ]; do |
|
|
|
|
part="${ip%%.*}" |
|
|
|
|
res="$(($res * 256))" |
|
|
|
|
res="$(($res + $part))" |
|
|
|
|
[ "${ip%.*}" != "$ip" ] && ip="${ip#*.}" || ip= |
|
|
|
|
done |
|
|
|
|
echo "$res" |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
args="" |
|
|
|
|
iface=lan |
|
|
|
|
config_get ifname "$iface" ifname |
|
|
|
|
config_get proto "$iface" proto |
|
|
|
|
|
|
|
|
|
[ "$proto" = static ] && dhcp_enable="${dhcp_enable:-1}" |
|
|
|
|
dhcp_start="${dhcp_start:-100}" |
|
|
|
|
dhcp_num="${dhcp_num:-50}" |
|
|
|
|
dhcp_lease="${dhcp_lease:-12h}" |
|
|
|
|
|
|
|
|
|
# if dhcp_enable is unset and there is a dhcp server on the network already, default to dhcp_enable=0 |
|
|
|
|
[ -z "$dhcp_enable" ] && udhcpc -n -q -R -s /bin/true -i $ifname >&- && dhcp_enable="${dhcp_enable:-0}" |
|
|
|
|
|
|
|
|
|
# dhcp_enable=0 disables the dhcp server |
|
|
|
|
( |
|
|
|
|
[ -z "$dhcp_enable" -o "$dhcp_enable" -eq 1 ] && { |
|
|
|
|
# no existing DHCP server? |
|
|
|
|
|
|
|
|
|
# calculate settings |
|
|
|
|
config_get ipaddr "$iface" ipaddr |
|
|
|
|
config_get netmask "$iface" netmask |
|
|
|
|
eval $(ipcalc $ipaddr $netmask ${dhcp_start:-100} ${dhcp_num:-150}) |
|
|
|
|
|
|
|
|
|
# and pass the args via config parser defines |
|
|
|
|
echo "${dhcp_enable:+@define dhcp_enable 1}" |
|
|
|
|
echo "@define netmask $NETMASK" |
|
|
|
|
echo "@define start $START" |
|
|
|
|
echo "@define end $END" |
|
|
|
|
echo "@define lease ${dhcp_lease:-12h}" |
|
|
|
|
dhcp_add() { |
|
|
|
|
local cfg="$1" |
|
|
|
|
|
|
|
|
|
config_get net "$cfg" interface |
|
|
|
|
[ -n "$net" ] || return 0 |
|
|
|
|
|
|
|
|
|
config_get ifname "$net" ifname |
|
|
|
|
[ -n "$ifname" ] || return 0 |
|
|
|
|
|
|
|
|
|
config_get_bool ignore "$cfg" ignore |
|
|
|
|
[ "$ignore" -gt 0 ] && { |
|
|
|
|
append args "-I $ifname" |
|
|
|
|
return 0 |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
config_get proto "$net" proto |
|
|
|
|
[ static = "$proto" ] || return 0 |
|
|
|
|
|
|
|
|
|
config_get ipaddr "$net" ipaddr |
|
|
|
|
config_get netmask "$net" netmask |
|
|
|
|
|
|
|
|
|
# check for an already active dhcp server on the interface, unless 'force' is set |
|
|
|
|
config_get_bool force "$cfg" force 0 |
|
|
|
|
[ "$force" -gt 0 ] || { |
|
|
|
|
udhcpc -n -q -R -s /bin/true -i $ifname >&- && return 0 |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
# ignore requests from wan interface |
|
|
|
|
config_get wan_proto wan proto |
|
|
|
|
config_get wan_ifname wan ifname |
|
|
|
|
[ -z "$wan_proto" -o "$wan_proto" = "none" ] || echo "@define wan_ifname $wan_ifname" |
|
|
|
|
config_get start "$cfg" start |
|
|
|
|
config_get end "$cfg" end |
|
|
|
|
config_get leasetime "$cfg" leasetime |
|
|
|
|
|
|
|
|
|
leasetime="${leasetime:-12h}" |
|
|
|
|
start="$(dhcp_calc "${start:-100}")" |
|
|
|
|
end="$((${end:-150} + 1))" |
|
|
|
|
eval "$(ipcalc.sh $ipaddr $netmask $start $end)" |
|
|
|
|
append args "-F $START,$END,$NETMASK,$leasetime" |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
start() { |
|
|
|
|
include /lib/network |
|
|
|
|
scan_interfaces |
|
|
|
|
config_load dhcp |
|
|
|
|
|
|
|
|
|
args="" |
|
|
|
|
config_foreach dhcp_add dhcp |
|
|
|
|
|
|
|
|
|
cat /etc/dnsmasq.conf |
|
|
|
|
) | awk -f /lib/config/template.awk | dnsmasq -C /proc/self/fd/0 && { |
|
|
|
|
dnsmasq $args && { |
|
|
|
|
rm -f /tmp/resolv.conf |
|
|
|
|
cat > /tmp/resolv.conf <<EOF |
|
|
|
|
nameserver 127.0.0.1 |
|
|
|
|