195 lines
5 KiB
Nix
195 lines
5 KiB
Nix
{ config, pkgs, ... }:
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with pkgs.lib;
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let
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inherit (pkgs) nettools;
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cfg = config.networking;
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in
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{
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###### interface
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options = {
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networking.hostName = mkOption {
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default = "nixos";
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description = ''
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The name of the machine. Leave it empty if you want to obtain
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it from a DHCP server (if using DHCP).
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'';
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};
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networking.nativeIPv6 = mkOption {
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default = false;
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description = ''
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Whether to use IPv6 even though gw6c is not used. For example,
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for Postfix.
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'';
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};
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networking.defaultGateway = mkOption {
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default = "";
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example = "131.211.84.1";
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description = ''
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The default gateway. It can be left empty if it is auto-detected through DHCP.
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'';
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};
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networking.nameservers = mkOption {
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default = [];
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example = ["130.161.158.4" "130.161.33.17"];
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description = ''
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The list of nameservers. It can be left empty if it is auto-detected through DHCP.
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'';
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};
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networking.domain = mkOption {
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default = "";
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example = "home";
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description = ''
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The domain. It can be left empty if it is auto-detected through DHCP.
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'';
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};
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networking.localCommands = mkOption {
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default = "";
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example = "text=anything; echo You can put $text here.";
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description = ''
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Shell commands to be executed at the end of the
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<literal>network-interfaces</literal> Upstart job. Note that if
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you are using DHCP to obtain the network configuration,
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interfaces may not be fully configured yet.
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'';
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};
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networking.interfaces = mkOption {
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default = [];
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example = [
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{ name = "eth0";
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ipAddress = "131.211.84.78";
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subnetMask = "255.255.255.128";
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}
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];
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description = ''
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The configuration for each network interface. If
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<option>networking.useDHCP</option> is true, then every
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interface not listed here will be configured using DHCP.
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'';
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type = types.list types.optionSet;
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options = {
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name = mkOption {
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example = "eth0";
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type = types.string;
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description = ''
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Name of the interface.
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'';
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};
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ipAddress = mkOption {
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default = "";
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example = "10.0.0.1";
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type = types.string;
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description = ''
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IP address of the interface. Leave empty to configure the
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interface using DHCP.
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'';
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};
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subnetMask = mkOption {
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default = "";
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example = "255.255.255.0";
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type = types.string;
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description = ''
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Subnet mask of the interface. Leave empty to use the
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default subnet mask.
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'';
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};
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};
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};
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};
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###### implementation
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config = {
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environment.systemPackages =
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[ pkgs.host
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pkgs.iproute
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pkgs.iputils
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pkgs.nettools
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pkgs.wirelesstools
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];
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jobs.networkInterfaces =
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{ name = "network-interfaces";
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startOn = "udev";
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preStart =
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''
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export PATH=${config.system.sbin.modprobe}/sbin:$PATH
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modprobe af_packet || true
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for i in $(cd /sys/class/net && ls -d *); do
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echo "Bringing up network device $i..."
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${nettools}/sbin/ifconfig $i up || true
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done
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# Configure the manually specified interfaces.
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${pkgs.lib.concatMapStrings (i:
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if i.ipAddress != "" then
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''
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echo "Configuring interface ${i.name}..."
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extraFlags=
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if test -n "${i.subnetMask}"; then
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extraFlags="$extraFlags netmask ${i.subnetMask}"
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fi
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${nettools}/sbin/ifconfig "${i.name}" "${i.ipAddress}" $extraFlags || true
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''
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else "") cfg.interfaces}
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# Set the nameservers.
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if test -n "${toString cfg.nameservers}"; then
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rm -f /etc/resolv.conf
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if test -n "${cfg.domain}"; then
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echo "domain ${cfg.domain}" >> /etc/resolv.conf
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fi
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for i in ${toString cfg.nameservers}; do
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echo "nameserver $i" >> /etc/resolv.conf
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done
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fi
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# Set the default gateway.
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if test -n "${cfg.defaultGateway}"; then
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${nettools}/sbin/route add default gw "${cfg.defaultGateway}" || true
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fi
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# Run any user-specified commands.
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${pkgs.stdenv.shell} ${pkgs.writeText "local-net-cmds" cfg.localCommands} || true
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'';
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postStop =
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''
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#for i in $(cd /sys/class/net && ls -d *); do
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# echo "Taking down network device $i..."
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# ${nettools}/sbin/ifconfig $i down || true
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#done
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'';
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};
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};
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}
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