On my network, I have a variety of machines and appliances, some of which need
different configuration issues than the default options.
For example:
config host
option name 'client'
option mac '00:01:02:03:04:05'
option ip '192.168.1.20'
option tag 'acme'
config tag
option name 'acme'
option force '1'
list dhcp_option 'option:router,192.168.1.253'
list dhcp_option 'option:domain-name,acme.com'
list dhcp_option 'option:domain-search,acme.com,redfish-solutions.com'
which allows me to override the default router for my client's host, as well as
its domain-name, and its domain-search.
this causes the following config lines:
dhcp-host=00:01:02:03:04:05,set:acme,192.168.1.20,client
dhcp-option-force=tag:acme,option:router,192.168.1.253,option:domain-name,acme.com,option:domain-search:acme.com,redfish-solutions.com
This could be useful elsewhere, for instance, if you have an IP CCTV that you
don't want to have a default-route, etc.
Index: trunk/package/dnsmasq/files/dnsmasq.init
===================================================================
--- trunk/package/dnsmasq/files/dnsmasq.init (revision 31572)
+++ trunk/package/dnsmasq/files/dnsmasq.init (working copy)
@@ -224,16 +224,37 @@
config_get name "$cfg" name
config_get ip "$cfg" ip
- [ -n "$ip" ] || [ -n "$name" ] || return 0
+ [ -n "$ip" -o -n "$name" ] || return 0
macs=""
config_get mac "$cfg" mac
for m in $mac; do append macs "$m" ","; done
[ -n "$macs" ] || return 0
- xappend
"--dhcp-host=$macs${networkid:+,net:$networkid}${ip:+,$ip}${name:+,$name}"
+ config_get tag "$cfg" tag
+
+ xappend
"--dhcp-host=$macs${networkid:+,net:$networkid}${tag:+,set:$tag}${ip:+,$ip}${name:+,$name}"
}
+append_option() {
+ append options "$1" ","
+}
+
+dhcp_tag_add() {
+ local cfg="$1"
+
+ config_get tag "$cfg" name
+ [ -n "$tag" ] || return 0
+
+ options=""
+ config_list_foreach "$cfg" "dhcp_option" append_option
+
+ config_get force "$cfg" force 0
+ [ "$force" = "0" ] && force=
+
+ xappend "--dhcp-option${force:+-force}=tag:$tag,$options"
+}
+
dhcp_mac_add() {
local cfg="$1"
@@ -435,6 +456,7 @@
echo >> $CONFIGFILE
config_foreach dhcp_boot_add boot
config_foreach dhcp_mac_add mac
+ config_foreach dhcp_tag_add tag
config_foreach dhcp_vendorclass_add vendorclass
config_foreach dhcp_userclass_add userclass
config_foreach dhcp_circuitid_add circuitid
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