/nixos-module/container/bird: use ospf instances not areas for sharing upstream
parent
003a948ce2
commit
d72789c35a
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@ -76,6 +76,10 @@ in
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services.dnscache.enable = true;
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};
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upstream1.ospf.upstreamInstance = 3;
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upstream2.ospf.upstreamInstance = 4;
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anon1.ospf.upstreamInstance = 5;
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freifunk.ospf.upstreamInstance = 6;
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c3d2-gw.ospf.allowedUpstreams = [ "upstream1" "upstream2" "freifunk" ];
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serv-gw.ospf.allowedUpstreams = [ "upstream1" "upstream2" "freifunk" ];
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cls-gw.ospf.allowedUpstreams = [ "upstream1" "upstream2" "freifunk" ];
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@ -214,6 +214,11 @@ let
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default = [];
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description = "Accept default routes from these OSPF routers, in order of preference";
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};
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ospf.upstreamInstance = mkOption {
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type = with types; nullOr int;
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default = null;
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description = "OSPF instance for advertising the default route";
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};
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wireguard = mkOption {
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default = {};
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type = with types; attrsOf (submodule (
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@ -145,13 +145,13 @@ in
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ipv4 {
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export where net = 0.0.0.0/0;
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};
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area ${config.site.net.core.hosts4.${hostName}} {
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area 0 {
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${builtins.concatStringsSep "\n" (
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builtins.attrValues (
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builtins.mapAttrs (net: _:
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# Enable OSPF only on interfaces with a secret.
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lib.optionalString (config.site.net.${net}.ospf.secret != null) ''
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interface "${net}" instance 1 {
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interface "${net}" instance ${toString hostConf.ospf.upstreamInstance} {
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authentication cryptographic;
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password "${config.site.net.${net}.ospf.secret}";
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};
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@ -164,28 +164,28 @@ in
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''}
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${(
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builtins.foldl' ({ text, instance }: upstream: {
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builtins.foldl' ({ text, n }: upstream: {
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text = ''
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${text}
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# OSPFv2 to receive a default route
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# OSPFv2 to receive a default route from ${upstream}
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protocol ospf v2 ZW4_${upstream} {
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ipv4 {
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export filter {
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preference = preference + 100 - ${toString instance};
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import filter {
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preference = preference + ${toString (100 - n)};
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accept;
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};
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${lib.optionalString (builtins.match "anon.*" hostName != null) ''
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table vpn4_table;
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''}
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};
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area ${config.site.net.core.hosts4.${upstream}} {
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area 0 {
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${builtins.concatStringsSep "\n" (
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builtins.attrValues (
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builtins.mapAttrs (net: _:
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# Enable OSPF only on interfaces with a secret.
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lib.optionalString (config.site.net.${net}.ospf.secret != null) ''
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interface "${net}" instance ${toString instance} {
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interface "${net}" instance ${toString config.site.hosts.${upstream}.ospf.upstreamInstance} {
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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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@ -196,8 +196,8 @@ in
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};
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}
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'';
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instance = instance + 1;
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}) { text = ""; instance = 2; } config.site.hosts.${hostName}.ospf.allowedUpstreams
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n = n + 1;
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}) { text = ""; n = 0; } hostConf.ospf.allowedUpstreams
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).text}
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# OSPFv3 for site-local IPv6
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@ -245,13 +245,13 @@ in
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ipv6 {
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export where net = ::/0;
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};
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area ${config.site.net.core.hosts4.${hostName}} {
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area 0 {
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${builtins.concatStringsSep "\n" (
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builtins.attrValues (
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builtins.mapAttrs (net: _:
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# Enable OSPF only on interfaces with a secret.
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lib.optionalString (config.site.net.${net}.ospf.secret != null) ''
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interface "${net}" instance 1 {
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interface "${net}" instance ${toString hostConf.ospf.upstreamInstance} {
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authentication cryptographic;
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password "${config.site.net.${net}.ospf.secret}";
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};
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@ -263,26 +263,26 @@ in
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}
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''}
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${lib.optionalString (builtins.match "anon.*" hostName != null) (
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builtins.foldl' ({ text, instance }: upstream: {
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${lib.optionalString (builtins.match "anon.*" hostName == null) (
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builtins.foldl' ({ text, n }: upstream: {
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text = ''
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${text}
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# OSPFv3 to receive a default route
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# OSPFv3 to receive a default route from ${upstream}
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protocol ospf v3 ZW6_${upstream} {
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ipv6 {
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export filter {
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preference = preference + 100 - ${toString instance};
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import filter {
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preference = preference + ${toString (100 - n)};
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accept;
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};
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};
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area ${config.site.net.core.hosts4.${upstream}} {
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area 0 {
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${builtins.concatStringsSep "\n" (
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builtins.attrValues (
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builtins.mapAttrs (net: _:
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# Enable OSPF only on interfaces with a secret.
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lib.optionalString (config.site.net.${net}.ospf.secret != null) ''
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interface "${net}" instance ${toString instance} {
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interface "${net}" instance ${toString config.site.hosts.${upstream}.ospf.upstreamInstance} {
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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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@ -293,8 +293,8 @@ in
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};
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}
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'';
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instance = instance + 1;
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}) { text = ""; instance = 2; } config.site.hosts.${hostName}.ospf.allowedUpstreams
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n = n + 1;
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}) { text = ""; n = 0; } hostConf.ospf.allowedUpstreams
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).text}
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# Zentralwerk DN42
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