forked from zentralwerk/network
144 lines
4.3 KiB
Nix
144 lines
4.3 KiB
Nix
# Routing daemon configuration
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{ hostName, config, options, lib, ... }:
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let
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hostConf = config.site.hosts.${hostName};
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# Configuring a gateway? If so, this is the associated net.
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gatewayNet =
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let
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m = builtins.match "(.+)-gw" hostName;
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in if m == [ "cls" ]
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then "cluster"
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else if m == null
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then null
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else builtins.head m;
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in
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{
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services.bird2 = {
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enable = true;
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config = ''
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router id ${config.site.net.core.hosts4.${hostName}};
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protocol kernel K4 {
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ipv4 {
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export all;
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};
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}
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protocol kernel K6 {
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ipv6 {
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export all;
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};
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}
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protocol device {
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scan time 10;
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}
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${lib.optionalString (gatewayNet != null) ''
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# Router advertisements
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protocol radv {
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rdnss ${config.site.net.serv.hosts6.dn42.dnscache};
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interface "${gatewayNet}" {
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min ra interval 10;
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max ra interval 60;
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${builtins.concatStringsSep "\n" (
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map (subnet6: ''
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prefix ${subnet6} {
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preferred lifetime 20;
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valid lifetime 60;
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};
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'') (builtins.attrValues config.site.net.${gatewayNet}.subnets6)
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)}
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dnssl "${config.site.net.${gatewayNet}.domainName}";
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};
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}
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''}
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# OSPFv2 for site-local IPv4
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protocol ospf v2 ZW4 {
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area 0 {
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# Enabled on these networks
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networks {
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${builtins.concatStringsSep " " (
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map (n: " ${n};") config.site.ospf.networks4
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)}
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};
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${builtins.concatStringsSep "\n" (
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builtins.attrValues (
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builtins.mapAttrs (net: _:
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# Enable OSPF only on networks with a secret. Others
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# are treated as a stubnet whose routes to
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# advertise.
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if config.site.net.${net}.ospf.secret != null
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then ''
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interface "${net}" {
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authentication cryptographic;
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password "${config.site.net.${net}.ospf.secret}";
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};
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''
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else if config.site.net.${net}.subnet4 != null
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then ''
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# Advertise route of network ${net}
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stubnet ${config.site.net.${net}.subnet4} {};
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''
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else ""
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) hostConf.interfaces
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)
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)}
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${builtins.concatStringsSep "\n" (
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map (stubnet4: ''
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# Advertise additional route
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stubnet ${stubnet4} {};
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'') hostConf.ospf.stubNets4
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)}
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};
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}
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# OSPFv3 for site-local IPv6
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protocol ospf v3 ZW6 {
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area 0 {
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# Enabled on these networks
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networks {
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${builtins.concatStringsSep " " (
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map (n: " ${n};") config.site.ospf.networks6
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)}
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};
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${builtins.concatStringsSep "\n" (
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builtins.attrValues (
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builtins.mapAttrs (net: _:
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# Enable OSPF only on networks with a secret. Others
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# are treated as a stubnet whose routes to
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# advertise.
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if config.site.net.${net}.ospf.secret != null
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then ''
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interface "${net}" {
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# TODO: enable when all bird 1.x have shut down
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#authentication cryptographic;
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#password "${config.site.net.${net}.ospf.secret}";
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};
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''
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else builtins.concatStringsSep "\n" (
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map (subnet6: ''
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# Advertise route of network ${net}
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stubnet ${subnet6} {};
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'') (builtins.attrValues config.site.net.${net}.subnets6)
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)
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) hostConf.interfaces
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)
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)}
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${builtins.concatStringsSep "\n" (
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map (stubnet6: ''
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# Advertise additional route
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stubnet ${stubnet6} {};
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'')
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hostConf.ospf.stubNets6
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)}
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};
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}
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'';
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};
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}
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