Add support for hostid dhcp config entry to dnsmasq. This allows
specification of dhcpv6 hostid suffix and works in the same way as
odhcpd.
Entries in auto generated dnsmasq.conf should conform to:
dhcp-host=mm:mm:mm:mm:mm:mm,IPv4addr,[::V6su:ffix],hostname
example based on sample config/dhcp entry:
config host
option name 'Kermit'
option mac 'E0:3F:49:A1:D4:AA'
option ip '192.168.235.4'
option hostid '4'
dhcp-host=E0:3F:49:A1:D4:AA,192.168.235.4,[::0:4],Kermit
Signed-off-by: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
echo "${value#--}" >> $CONFIGFILE
}
echo "${value#--}" >> $CONFIGFILE
}
+hex_to_hostid() {
+ local var="$1"
+ local hex="${2#0x}" # strip optional "0x" prefix
+
+ if [ -n "${hex//[0-9a-fA-F]/}" ]; then
+ # is invalid hex literal
+ return 1
+ fi
+
+ # convert into host id
+ export "$var=$(
+ printf "%0x:%0x" \
+ $(((0x$hex >> 16) % 65536)) \
+ $(( 0x$hex % 256))
+ )"
+
+ return 0
+}
+
dhcp_calc() {
local ip="$1"
local res=0
dhcp_calc() {
local ip="$1"
local res=0
config_get tag "$cfg" tag
config_get tag "$cfg" tag
+ if [ "$DHCPv6CAPABLE" -eq 1 ]; then
+ config_get hostid "$cfg" hostid
+ if [ -n "$hostid" ]; then
+ hex_to_hostid hostid "$hostid"
+ fi
+ fi
+
config_get_bool broadcast "$cfg" broadcast 0
[ "$broadcast" = "0" ] && broadcast=
config_get leasetime "$cfg" leasetime
config_get_bool broadcast "$cfg" broadcast 0
[ "$broadcast" = "0" ] && broadcast=
config_get leasetime "$cfg" leasetime
- xappend "--dhcp-host=$macs${networkid:+,net:$networkid}${broadcast:+,set:needs-broadcast}${tag:+,set:$tag}${ip:+,$ip}${name:+,$name}${leasetime:+,$leasetime}"
+ xappend "--dhcp-host=$macs${networkid:+,net:$networkid}${broadcast:+,set:needs-broadcast}${tag:+,set:$tag}${ip:+,$ip${hostid:+,[::$hostid]}}${name:+,$name}${leasetime:+,$leasetime}"
xappend "--conf-file=/etc/dnsmasq.conf"
}
xappend "--conf-file=/etc/dnsmasq.conf"
}
+ $PROG --version | grep -osqE "^Compile time options:.* DHCPv6( |$)" && DHCPv6CAPABLE=1 || DHCPv6CAPABLE=0
+
args=""
config_foreach dnsmasq dnsmasq
config_foreach dhcp_host_add host
args=""
config_foreach dnsmasq dnsmasq
config_foreach dhcp_host_add host