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nixpkgs/nixos/modules/services/networking/gvpe.nix
Silvan Mosberger 4f0dadbf38 treewide: format all inactive Nix files
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.

Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.

A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.

This commit was automatically created and can be verified using

    nix-build a08b3a4d19.tar.gz \
      --argstr baseRev b32a094368
    result/bin/apply-formatting $NIXPKGS_PATH
2024-12-10 20:26:33 +01:00

138 lines
3.3 KiB
Nix

# GNU Virtual Private Ethernet
{
config,
pkgs,
lib,
...
}:
let
inherit (lib) mkOption mkIf types;
cfg = config.services.gvpe;
finalConfig =
if cfg.configFile != null then
cfg.configFile
else if cfg.configText != null then
pkgs.writeTextFile {
name = "gvpe.conf";
text = cfg.configText;
}
else
throw "You must either specify contents of the config file or the config file itself for GVPE";
ifupScript =
if cfg.ipAddress == null || cfg.subnet == null then
throw "Specify IP address and subnet (with mask) for GVPE"
else if cfg.nodename == null then
throw "You must set node name for GVPE"
else
(pkgs.writeTextFile {
name = "gvpe-if-up";
text = ''
#! /bin/sh
export PATH=$PATH:${pkgs.iproute2}/sbin
ip link set dev $IFNAME up
ip address add ${cfg.ipAddress} dev $IFNAME
ip route add ${cfg.subnet} dev $IFNAME
${cfg.customIFSetup}
'';
executable = true;
});
in
{
options = {
services.gvpe = {
enable = lib.mkEnableOption "gvpe";
nodename = mkOption {
default = null;
type = types.nullOr types.str;
description = ''
GVPE node name
'';
};
configText = mkOption {
default = null;
type = types.nullOr types.lines;
example = ''
tcp-port = 655
udp-port = 655
mtu = 1480
ifname = vpn0
node = alpha
hostname = alpha.example.org
connect = always
enable-udp = true
enable-tcp = true
on alpha if-up = if-up-0
on alpha pid-file = /var/gvpe/gvpe.pid
'';
description = ''
GVPE config contents
'';
};
configFile = mkOption {
default = null;
type = types.nullOr types.path;
example = "/root/my-gvpe-conf";
description = ''
GVPE config file, if already present
'';
};
ipAddress = mkOption {
default = null;
type = types.nullOr types.str;
description = ''
IP address to assign to GVPE interface
'';
};
subnet = mkOption {
default = null;
type = types.nullOr types.str;
example = "10.0.0.0/8";
description = ''
IP subnet assigned to GVPE network
'';
};
customIFSetup = mkOption {
default = "";
type = types.lines;
description = ''
Additional commands to apply in ifup script
'';
};
};
};
config = mkIf cfg.enable {
systemd.services.gvpe = {
description = "GNU Virtual Private Ethernet node";
after = [ "network.target" ];
wantedBy = [ "multi-user.target" ];
preStart = ''
mkdir -p /var/gvpe
mkdir -p /var/gvpe/pubkey
chown root /var/gvpe
chmod 700 /var/gvpe
cp ${finalConfig} /var/gvpe/gvpe.conf
cp ${ifupScript} /var/gvpe/if-up
'';
script =
"${pkgs.gvpe}/sbin/gvpe -c /var/gvpe -D ${cfg.nodename} "
+ " ${cfg.nodename}.pid-file=/var/gvpe/gvpe.pid"
+ " ${cfg.nodename}.if-up=if-up"
+ " &> /var/log/gvpe";
serviceConfig.Restart = "always";
};
};
}