liminix/modules/vlan/default.nix
Daniel Barlow 333327be75 make a module for vlan
Acked-by: Daniel Barlow <<dan@telent.net>>
2023-08-30 23:26:44 +01:00

41 lines
1.2 KiB
Nix

## VLAN
## ====
##
## Virtual LANs give you the ability to sub-divide a LAN. Linux can
## accept VLAN tagged traffic and presents each VLAN ID as a
## different network interface (eg: eth0.100 for VLAN ID 100)
##
## Some Liminix devices with multiple ethernet ports are implemented
## using a network switch connecting the physical ports to the CPU,
## and require using VLAN in order to send different traffic to
## different ports (e.g. LAN vs WAN)
{ lib, pkgs, config, ...}:
let
inherit (lib) mkOption types;
inherit (pkgs.liminix.services) oneshot;
inherit (pkgs) liminix;
in
{
options = {
system.service.vlan = mkOption { type = liminix.lib.types.serviceDefn; };
};
config.system.service.vlan = liminix.callService ./service.nix {
ifname = mkOption {
type = types.str;
description = "interface name to create";
};
primary = mkOption {
description = "existing physical interface";
type = liminix.lib.types.interface;
};
vid = mkOption {
description = "VLAN identifier (VID) in range 1-4094";
type = types.str;
};
};
config.kernel.config = {
VLAN_8021Q = "y";
SWCONFIG = "y"; # not always appropriate, some devices will use DSA
};
}