{ config, pkgs, ... }: with pkgs.lib; let inherit (pkgs) nettools; cfg = config.networking; ifconfig = "${nettools}/sbin/ifconfig"; in { ###### interface options = { networking.hostName = mkOption { default = "nixos"; description = '' The name of the machine. Leave it empty if you want to obtain it from a DHCP server (if using DHCP). ''; }; networking.nativeIPv6 = mkOption { default = false; description = '' Whether to use IPv6 even though gw6c is not used. For example, for Postfix. ''; }; networking.defaultGateway = mkOption { default = ""; example = "131.211.84.1"; description = '' The default gateway. It can be left empty if it is auto-detected through DHCP. ''; }; networking.nameservers = mkOption { default = []; example = ["130.161.158.4" "130.161.33.17"]; description = '' The list of nameservers. It can be left empty if it is auto-detected through DHCP. ''; }; networking.domain = mkOption { default = ""; example = "home"; description = '' The domain. It can be left empty if it is auto-detected through DHCP. ''; }; networking.localCommands = mkOption { default = ""; example = "text=anything; echo You can put $text here."; description = '' Shell commands to be executed at the end of the network-interfaces Upstart job. Note that if you are using DHCP to obtain the network configuration, interfaces may not be fully configured yet. ''; }; networking.interfaces = mkOption { default = []; example = [ { name = "eth0"; ipAddress = "131.211.84.78"; subnetMask = "255.255.255.128"; } ]; description = '' The configuration for each network interface. If is true, then every interface not listed here will be configured using DHCP. ''; type = types.list types.optionSet; options = { name = mkOption { example = "eth0"; type = types.string; description = '' Name of the interface. ''; }; ipAddress = mkOption { default = ""; example = "10.0.0.1"; type = types.string; description = '' IP address of the interface. Leave empty to configure the interface using DHCP. ''; }; subnetMask = mkOption { default = ""; example = "255.255.255.0"; type = types.string; description = '' Subnet mask of the interface. Leave empty to use the default subnet mask. ''; }; macAddress = mkOption { default = ""; example = "00:11:22:33:44:55"; type = types.string; description = '' MAC address of the interface. Leave empty to use the default. ''; }; }; }; networking.ifaces = mkOption { default = listToAttrs (map (iface: { name = iface.name; value = iface; }) config.networking.interfaces); internal = true; description = '' The network interfaces in as an attribute set keyed on the interface name. ''; }; }; ###### implementation config = { environment.systemPackages = [ pkgs.host pkgs.iproute pkgs.iputils pkgs.nettools pkgs.wirelesstools pkgs.rfkill ]; security.setuidPrograms = [ "ping" "ping6" ]; jobs.networkInterfaces = { name = "network-interfaces"; startOn = "stopped udevtrigger"; preStart = '' export PATH=${config.system.sbin.modprobe}/sbin:$PATH modprobe af_packet || true ${pkgs.lib.concatMapStrings (i: if i.macAddress != "" then '' echo "Configuring interface ${i.name}..." ${ifconfig} "${i.name}" down || true ${ifconfig} "${i.name}" hw ether "${i.macAddress}" || true '' else "") cfg.interfaces } for i in $(cd /sys/class/net && ls -d *); do echo "Bringing up network device $i..." ${ifconfig} $i up || true done # Configure the manually specified interfaces. ${pkgs.lib.concatMapStrings (i: if i.ipAddress != "" then '' echo "Configuring interface ${i.name}..." extraFlags= if test -n "${i.subnetMask}"; then extraFlags="$extraFlags netmask ${i.subnetMask}" fi ${ifconfig} "${i.name}" "${i.ipAddress}" $extraFlags || true '' else "") cfg.interfaces} # Set the nameservers. if test -n "${toString cfg.nameservers}"; then rm -f /etc/resolv.conf if test -n "${cfg.domain}"; then echo "domain ${cfg.domain}" >> /etc/resolv.conf fi for i in ${toString cfg.nameservers}; do echo "nameserver $i" >> /etc/resolv.conf done fi # Set the default gateway. if test -n "${cfg.defaultGateway}"; then ${nettools}/sbin/route add default gw "${cfg.defaultGateway}" || true fi # Run any user-specified commands. ${pkgs.stdenv.shell} ${pkgs.writeText "local-net-cmds" cfg.localCommands} || true ${optionalString (cfg.interfaces != [] || cfg.localCommands != "") '' # Emit the ip-up event (e.g. to start ntpd). initctl emit -n ip-up ''} ''; postStop = '' #for i in $(cd /sys/class/net && ls -d *); do # echo "Taking down network device $i..." # ${ifconfig} $i down || true #done ''; }; # Set the host name in the activation script. Don't clear it if # it's not configured in the NixOS configuration, since it may # have been set by dhclient in the meantime. system.activationScripts.hostname = optionalString (config.networking.hostName != "") '' hostname "${config.networking.hostName}" ''; }; }