[Dnsmasq-discuss] Vendor and User class compounds

[Simon Kelley]

Francois-Xavier Le Bail wrote:
> Hi,
> 
> I want to put some options for some hosts with the network-ids match system.
> 
> These hosts are defined by such a test :
> 
>     (vendor-class = "Vendor_1" and
>     (user-class = "device_1" or
>      user-class = "device_2" or
>      user-class = "...")
>     ) or (
>     vendor-class = "Vendor_2" and
>     (user-class = "device_A" or
>      user-class = "...")
>     ) or (
>     vendor-class = "Vendor_3" and
>     (user-class = "device_AA" or
>      user-class = "..."))
>     ...
> 
> Have you an example of a dnsmasq.conf file for this case ?
> 
>

You need to do this in two stages: first set network-ids based on the
vendor-class and user-class ids:

dhcp-vendorclass = vendor1,"Vendor_1"  # sets tag vendor1
dhcp-vendorclass = vendor2,"Vendor_2"  # sets tag vendor2
# etc


dhcp-userclass = user1,"device_1" # sets tag user1
#etc

then you take advantage of the fact that dhcp-option lines can have more
than one tag, with an implied AND function. To get the OR function you
need to repeat the dhcp-option

dhcp-option=vendor1,user1,56,....... # send option 56 to hosts which are
                                     # vendor1 and user1

dhcp-option=vendor2,user2,56,....... # OR to hosts which are vendor2 and

                                     # user2


etc.

Be aware that the dhcp-vendorclass and dhcp-userclass statements do
substring matching, so they will set the tag if the given string is a
substring of the data supplied by the client.

HTH

Simon.