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liminix/modules/bridge/default.nix

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Nix

## Bridge module
## =============
##
## Allows creation of Layer 2 software "bridge" network devices. A
## common use case is to merge together a hardware Ethernet device
## with one or more WLANs so that several local devices appear to be
## on the same network.
{ lib, pkgs, config, ...}:
let
inherit (lib) mkOption types;
inherit (pkgs.liminix.services) oneshot;
inherit (pkgs) liminix;
in
{
options = {
system.service.bridge = {
primary = mkOption { type = liminix.lib.types.serviceDefn; };
members = mkOption { type = liminix.lib.types.serviceDefn; };
};
};
config.system.service.bridge = {
primary = liminix.callService ./primary.nix {
ifname = mkOption {
type = types.str;
description = "bridge interface name to create";
};
};
members = liminix.callService ./members.nix {
primary = mkOption {
type = liminix.lib.types.interface;
description = "primary bridge interface";
};
members = mkOption {
type = types.listOf liminix.lib.types.interface;
description = "interfaces to add to the bridge";
};
};
};
config.kernel.config = {
BRIDGE = "y";
BRIDGE_IGMP_SNOOPING = "y";
} // lib.optionalAttrs (config.system.service ? vlan) {
# depends on bridge _and_ vlan. I would like there to be
# a better way to test for the existence of vlan config:
# maybe the module should set an `enabled` attribute?
BRIDGE_VLAN_FILTERING = "y";
};
}