pkgs/gateway-report: init

nix/pkgs/default.nix

@@ -100,6 +100,10 @@ let
     inherit self nixpkgs system;
   };
 
+  gateway-report = import ./gateway-report.nix {
+    inherit self nixpkgs system;
+  };
+
   vlan-report = import ./vlan-report.nix {
     inherit self nixpkgs system;
   };
@@ -111,6 +115,6 @@ in
 rootfs-packages // vm-packages // device-templates // openwrt-packages // network-graphs // network-cypher-graphs // starlink // subnetplans // {
   inherit export-openwrt-models export-config dns-slaves
     encrypt-secrets decrypt-secrets switch-to-production
-    homepage vlan-report
+    homepage gateway-report vlan-report
     ;
 }

nix/pkgs/gateway-report.nix

@@ -0,0 +1,111 @@
+{ self, nixpkgs, system }:
+with nixpkgs.legacyPackages.${system};
+let
+  config = self.lib.config;
+
+in
+writeText "vlan-report.md" ''
+  # Gateway Report
+
+  ${lib.concatMapStrings (net:
+    let
+      netConfig = config.site.net.${net};
+
+      routers4 = builtins.filter (hostName:
+        config.site.hosts ? ${hostName} &&
+        config.site.hosts.${hostName}.isRouter
+      ) (
+        builtins.attrNames netConfig.hosts4
+      );
+
+      routers6 = builtins.filter (hostName:
+        config.site.hosts ? ${hostName} &&
+        config.site.hosts.${hostName}.isRouter
+      ) (lib.unique (
+          builtins.concatMap builtins.attrNames (builtins.attrValues netConfig.hosts6)
+      ));
+
+      upstreamAt = l: n:
+        if n < builtins.length l
+        then
+          let
+            hostName = builtins.elemAt l n;
+            hostConfig = config.site.hosts.${hostName};
+            providers =
+              map ({ upstream, ... }: upstream.provider) (
+                builtins.filter ({ upstream, ... }:
+                  upstream.provider or null != null
+                ) (builtins.attrValues hostConfig.interfaces)
+              );
+          in
+            "${hostName}${
+              lib.optionalString (providers != []) " (${lib.concatStringsSep ", " providers})"
+            }"
+        else "";
+
+    in
+      lib.optionalString (net != "core" && (routers4 != [] || routers6 != [])) ''
+        ## Network ${net}
+
+        ${lib.optionalString (routers4 != []) ''
+          ### IPv4 `${netConfig.subnet4}`
+
+          | Address | Name | Upstream | Fallback |
+          |-|-|-|-|
+          ${lib.concatMapStrings (hostName:
+            let
+              hostConfig = config.site.hosts.${hostName};
+              isDhcpDefault = hostName == netConfig.dhcp.router or null;
+              upstream4a = upstreamAt hostConfig.ospf.allowedUpstreams 0;
+              upstream4b = upstreamAt hostConfig.ospf.allowedUpstreams 1;
+            in ''
+              |`${
+                netConfig.hosts4.${hostName}
+              }`|${
+                if isDhcpDefault
+                then "**${hostName}**"
+                else hostName
+              }|${
+                upstream4a
+              }|${
+                upstream4b
+              }|
+            ''
+          ) (lib.naturalSort routers4)}
+        ''}
+
+        ${lib.optionalString (routers6 != {}) ''
+          ### IPv6: ${lib.concatStringsSep " " (
+            map (s: "`${s}`") (
+              builtins.attrValues netConfig.subnets6
+            )
+          )}
+
+          | Address | Name | Upstream | Description |
+          |-|-|-|-|
+          ${lib.concatMapStrings (hostName:
+            let
+              hostConfig = config.site.hosts.${hostName};
+              upstream6a = upstreamAt hostConfig.ospf.allowedUpstreams6 0;
+              upstream6b = upstreamAt hostConfig.ospf.allowedUpstreams6 1;
+            in ''
+              |${
+                lib.concatMapStringsSep " " (ctx:
+                  "`${netConfig.hosts6.${ctx}.${hostName}}`"
+                ) (builtins.filter (ctx:
+                  netConfig.hosts6.${ctx} ? ${hostName}
+                ) (builtins.attrNames netConfig.hosts6))
+              }|${
+                hostName
+              }|${
+                upstream6a
+              }|${
+                upstream6b
+              }|
+            ''
+          ) (lib.naturalSort routers6)}
+        ''}
+
+      ''
+  ) (lib.naturalSort (builtins.attrNames config.site.net))}
+''

nix/pkgs/homepage/default.nix

@@ -7,7 +7,9 @@
 
 let
 
-  inherit (self.packages.${system}) network-graphs subnetplans vlan-report;
+  inherit (self.packages.${system})
+    gateway-report network-graphs
+    subnetplans vlan-report;
   
 in
 stdenv.mkDerivation {
@@ -22,6 +24,7 @@ stdenv.mkDerivation {
   buildPhase = ''
     pandoc -t html ${../../../doc/hello.md} > index.html
     pandoc -t html ${vlan-report} > vlan-report.html
+    pandoc -t html ${gateway-report} > gateway-report.html
     ln -s ${substituteAll {
       src = ./figure.html;
       img = "physical.png";

nix/pkgs/homepage/header.html

@@ -19,6 +19,7 @@
       <nav>
         <ul>
           <li><a href="index.html">Willkommen</a></li>
+          <li><a href="gateway-report.html">Router-Adressen</a></li>
           <li><a href="subnetplan4.html">IPv4-Plan</a></li>
           <li><a href="subnetplan6.html">IPv6-Plan</a></li>
           <li><a href="vlan-report.html">VLAN-Belegungen</a></li>

nix/pkgs/homepage/src/style.css

@@ -75,4 +75,19 @@ main figure img {
 
 main table {
     font-size: 75%;
+    border-collapse: collapse;
+    border: 1px solid #555;
+}
+main table th {
+    background-color: #555;
+    color: #FFF;
+    padding: 0.4rem;
+}
+main table td {
+    border: 1px solid #555;
+    padding: 0.2rem 0.4rem;
+}
+
+main h3 code {
+    margin-left: 0.6rem;
 }