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nixos/network-interfaces: Allow explicit virtual interface type setting

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William A. Kennington III 2014-08-23 18:38:29 -07:00
parent b7d2aff103
commit 1c08efb8ab
1 changed files with 23 additions and 9 deletions
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32
nixos/modules/tasks/network-interfaces.nix
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@ -138,8 +138,6 @@ let
Whether this interface is virtual and should be created by tunctl.
This is mainly useful for creating bridges between a host a virtual
network such as VPN or a virtual machine.
Defaults to tap device, unless interface contains "tun" in its name.
'';
};
@ -151,6 +149,15 @@ let
'';
};
virtualType = mkOption {
default = null;
type = types.nullOr (types.addCheck types.str (v: v == "tun" || v == "tap"));
description = ''
The explicit type of interface to create. Accepts tun or tap strings.
Also accepts null to implicitly detect the type of device.
'';
};
proxyARP = mkOption {
default = false;
type = types.bool;
@ -673,18 +680,25 @@ in
'');
};
createTunDevice = i: nameValuePair "${i.name}"
createTunDevice = i: nameValuePair "${i.name}-tun"
{ description = "Virtual Network Interface ${i.name}";
requires = [ "dev-net-tun.device" ];
after = [ "dev-net-tun.device" ];
wantedBy = [ "network.target" ];
requiredBy = [ "sys-subsystem-net-devices-${i.name}.device" ];
serviceConfig =
{ Type = "oneshot";
RemainAfterExit = true;
ExecStart = "${pkgs.tunctl}/bin/tunctl -t '${i.name}' -u '${i.virtualOwner}'";
ExecStop = "${pkgs.tunctl}/bin/tunctl -d '${i.name}'";
};
path = [ pkgs.iproute ];
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
};
script = ''
ip tuntap add dev "${i.name}" \
${optionalString (i.virtualType != null) "mode ${i.virtualType}"} \
user "${i.virtualOwner}"
'';
postStop = ''
ip link del ${i.name}
'';
};
createBridgeDevice = n: v: