2020-11-01 20:21:27 +01:00
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{ config, pkgs, lib, ... }:
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with lib;
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{
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2020-11-10 16:01:58 +01:00
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options = {
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2020-11-01 20:21:27 +01:00
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2020-11-10 16:01:58 +01:00
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networking.interfaces = lib.mkOption {
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type = with types;
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attrsOf (submodule ({ ... }: {
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options.genode = {
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driver = mkOption { type = types.enum [ "ipxe" "virtio" ]; };
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stack = mkOption {
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type = with types; nullOr (enum [ "lwip" "lxip" ]);
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default = "lwip";
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};
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2020-11-01 20:21:27 +01:00
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};
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2020-11-10 16:01:58 +01:00
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}));
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};
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2020-11-01 20:21:27 +01:00
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};
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2020-11-10 16:01:58 +01:00
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config = {
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assertions = with builtins;
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let
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addrCheck = name: interface: {
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assertion = lessThan (length interface.ipv4.addresses) 2;
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message = "Genode interfaces do not support multihoming.";
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2020-11-01 20:21:27 +01:00
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};
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2020-11-10 16:01:58 +01:00
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routeCheck = name: interface: {
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assertion = lessThan (length interface.ipv4.routes) 2;
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message = "Genode interfaces do not support multiple routes.";
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2020-11-01 20:21:27 +01:00
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};
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2020-12-20 14:56:47 +01:00
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policyCheck = name: interface:
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let
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2021-01-12 12:39:35 +01:00
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clientList = filter (x: x != null) (lib.mapAttrsToList
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2020-12-20 14:56:47 +01:00
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(childName: value:
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if any (nic: nic == name) value.routeToNics then
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childName
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else
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null) config.genode.init.children);
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in {
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2021-02-16 12:10:50 +01:00
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assertion = clientList == [ ] || length clientList == 1;
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2020-12-20 14:56:47 +01:00
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message = "Multiple routes to Nic ${name}, ${clientList}";
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};
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in lib.lists.concatMap
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(f: lib.mapAttrsToList f config.networking.interfaces) [
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addrCheck
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routeCheck
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policyCheck
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];
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2020-11-10 16:01:58 +01:00
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hardware.genode.platform.policies = lib.lists.imap0 (i: name:
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builtins.toFile (name + ".platform-policy.dhall") ''
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2020-11-01 20:21:27 +01:00
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let Genode = env:DHALL_GENODE
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2020-11-10 16:01:58 +01:00
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in Genode.Init.Config.Policy::{
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, service = "Platform"
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, label = Genode.Init.LabelSelector.prefix "${name}.driver"
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, content =
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[ Genode.Prelude.XML.leaf
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{ name = "pci"
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, attributes = toMap {
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, class = "ETHERNET"
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, index = "${toString i}"
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}
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}
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]
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}
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'') (builtins.attrNames config.networking.interfaces);
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2021-01-12 12:39:35 +01:00
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genode.core.children = mapAttrs' (name: interface:
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let name' = name + ".driver";
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in {
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name = name';
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2021-02-16 15:25:30 +01:00
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value = {
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2021-02-16 12:10:50 +01:00
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package = with pkgs.genodePackages;
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2021-02-02 21:41:23 +01:00
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{
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2021-02-16 12:10:50 +01:00
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ipxe = ipxe_nic_drv;
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virtio = virtio_nic_drv;
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2021-02-02 21:41:23 +01:00
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}.${interface.genode.driver};
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2021-01-12 12:39:35 +01:00
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configFile = let
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policy = lib.mapAttrsToList (childName: value:
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if any (nic: nic == name) value.routeToNics then ''
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Init.Config.Policy::{
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, service = "Nic"
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, label = Init.LabelSelector.prefix "nixos -> ${childName}"
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}
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'' else
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"") config.genode.init.children;
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in pkgs.writeText "${name'}.dhall" ''
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let Genode = env:DHALL_GENODE
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let Init = Genode.Init
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2021-02-16 15:25:30 +01:00
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in λ(binary : Text) -> Init.Child.flat
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2021-01-12 12:39:35 +01:00
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Init.Child.Attributes::{
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2021-02-16 15:25:30 +01:00
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, binary
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2021-01-12 12:39:35 +01:00
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, resources = Init.Resources::{ caps = 128, ram = Genode.units.MiB 4 }
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, routes = [ Init.ServiceRoute.parent "IO_MEM" ]
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, config = Init.Config::{
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, attributes = toMap { verbose = "true" }
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, policies = [ ${
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toString policy
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} ] : List Init.Config.Policy.Type
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2020-11-10 16:01:58 +01:00
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}
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2021-01-12 12:39:35 +01:00
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}
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'';
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};
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}) config.networking.interfaces;
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2020-11-10 16:01:58 +01:00
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2021-01-12 12:39:35 +01:00
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genode.init.children = let
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2020-11-10 16:01:58 +01:00
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sockets = mapAttrs' (name: interface:
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2021-02-03 20:39:25 +01:00
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let
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name' = name + ".sockets";
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2021-02-16 12:10:50 +01:00
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vfsPlugin = lib.getEris "lib" (with pkgs.genodePackages;
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2021-02-02 21:41:23 +01:00
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{
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2021-02-16 12:10:50 +01:00
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lwip = vfs_lwip;
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lxip = vfs_lxip;
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}.${interface.genode.stack});
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2020-11-10 16:01:58 +01:00
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in {
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name = name';
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value = if interface.genode.stack == null then
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null
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else {
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2021-02-16 12:10:50 +01:00
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package = pkgs.genodePackages.vfs;
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extraErisInputs = [ vfsPlugin ];
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2020-12-20 14:56:47 +01:00
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routeToNics = [ name ];
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2020-11-10 16:01:58 +01:00
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configFile = let
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2020-11-12 19:37:16 +01:00
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ram = {
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lwip = 16;
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lxip = 32;
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}.${interface.genode.stack};
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2020-11-10 16:01:58 +01:00
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settings = with builtins;
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2021-02-03 20:39:25 +01:00
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[
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{
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name = "label";
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value = name;
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}
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{
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name = "load";
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2021-02-16 12:10:50 +01:00
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value = vfsPlugin.cap;
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2021-02-03 20:39:25 +01:00
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}
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] ++ lib.optionals (interface.ipv4.addresses != [ ])
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2020-11-10 16:01:58 +01:00
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(let addr = head interface.ipv4.addresses;
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in [
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{
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name = "ip_addr";
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value = addr.address;
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}
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{
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name = "netmask";
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value = if addr.prefixLength == 24 then
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"255.255.255.0"
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else
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throw "missing prefix to netmask conversion";
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}
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]) ++ lib.optional (interface.ipv4.routes != [ ])
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(let route = head interface.ipv4.routes;
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in {
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name = "gateway";
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value = route.address;
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}) ++ lib.optional (interface.useDHCP != null) {
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name = "dhcp";
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value = if interface.useDHCP then "true" else "false";
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};
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2020-11-12 19:37:16 +01:00
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settingsMap = builtins.concatStringsSep ", " (map
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({ name, value }:
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''{ mapKey = "${name}", mapValue = "${value}" }'') settings);
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2020-11-10 16:01:58 +01:00
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in pkgs.writeText "${name'}.dhall" ''
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let Genode = env:DHALL_GENODE
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let Init = Genode.Init
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2021-02-16 15:25:30 +01:00
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in λ(binary : Text) -> Init.Child.flat
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2020-11-10 16:01:58 +01:00
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Init.Child.Attributes::{
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2021-02-16 15:25:30 +01:00
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, binary
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2020-11-10 16:01:58 +01:00
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, provides = [ "File_system" ]
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2020-11-12 19:37:16 +01:00
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, resources = Init.Resources::{
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, caps = 128
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, ram = Genode.units.MiB ${toString ram}
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}
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2020-11-10 16:01:58 +01:00
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, config = Init.Config::{
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, policies =
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[ Init.Config.Policy::{
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, service = "File_system"
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2020-11-12 19:37:16 +01:00
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, label = Init.LabelSelector.suffix "${name'}"
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, attributes = toMap { root = "/", writeable="yes" }
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2020-11-10 16:01:58 +01:00
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}
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]
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, content =
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2020-11-12 19:37:16 +01:00
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let VFS = Genode.VFS
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in [ VFS.vfs
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[ VFS.leafAttrs
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2021-02-03 20:39:25 +01:00
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"plugin"
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2020-11-12 19:37:16 +01:00
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([ ${settingsMap} ] : Genode.Prelude.Map.Type Text Text)
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]
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2020-11-10 16:01:58 +01:00
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]
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}
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}
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'';
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};
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}) config.networking.interfaces;
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2021-01-12 12:39:35 +01:00
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in lib.filterAttrs (n: v: v != null) sockets;
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2020-11-01 20:21:27 +01:00
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};
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}
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