Merge remote-tracking branch 'ni/master'

3 files changed, 215 insertions, 14 deletions

diff --git a/krebs/3modules/tv/default.nix b/krebs/3modules/tv/default.nix
index 965505a7..016d5ca9 100644
--- a/krebs/3modules/tv/default.nix
+++ b/krebs/3modules/tv/default.nix
@@ -164,15 +164,26 @@ in {
       extraZones = {
         "krebsco.de" = ''
           ni          60 IN A ${config.krebs.hosts.ni.nets.internet.ip4.addr}
+          ni          60 IN AAAA ${config.krebs.hosts.ni.nets.internet.ip6.addr}
           cgit        60 IN A ${config.krebs.hosts.ni.nets.internet.ip4.addr}
+          cgit        60 IN AAAA ${config.krebs.hosts.ni.nets.internet.ip6.addr}
           cgit.ni     60 IN A ${config.krebs.hosts.ni.nets.internet.ip4.addr}
+          cgit.ni     60 IN AAAA ${config.krebs.hosts.ni.nets.internet.ip6.addr}
           krebsco.de. 60 IN MX 5 ni
           krebsco.de. 60 IN TXT v=spf1 mx -all
+          tv          300 IN NS ni
         '';
       };
       nets = {
         internet = {
-          ip4.addr = "188.68.36.196";
+          ip4 = rec {
+            addr = "188.68.36.196";
+            prefix = "${addr}/32";
+          };
+          ip6 = rec {
+            addr = "2a03:4000:13:4c::1";
+            prefix = "${addr}/64";
+          };
           aliases = [
             "ni.i"
             "cgit.ni.i"
diff --git a/krebs/3modules/zones.nix b/krebs/3modules/zones.nix
index eb135186..51ced6f9 100644
--- a/krebs/3modules/zones.nix
+++ b/krebs/3modules/zones.nix
@@ -1,22 +1,103 @@
 with import <stockholm/lib>;
-{ config, ... }: {
+{ config, pkgs, ... }: {
 
   config = {
-    # Implements environment.etc."zones/<zone-name>"
-    environment.etc = let
-      stripEmptyLines = s: (concatStringsSep "\n"
-        (remove "\n" (remove "" (splitString "\n" s)))) + "\n";
-      all-zones = foldAttrs (sum: current: sum + "\n" +current ) ""
-        ([config.krebs.zone-head-config] ++ combined-hosts);
-      combined-hosts =
-        mapAttrsToList (name: getAttr "extraZones") config.krebs.hosts;
-    in
+    environment.etc =
       mapAttrs'
-        (name: value: {
+        (name: pkg: {
           name = "zones/${name}";
-          value.text = stripEmptyLines value;
+          value.source = pkg;
         })
-        all-zones;
+        pkgs.krebs.zones;
+
+    nixpkgs.overlays = [
+      # Explicit zones generated from config.krebs.hosts.*.extraZones
+      (self: super: let
+        stripEmptyLines = s: (concatStringsSep "\n"
+          (remove "\n" (remove "" (splitString "\n" s)))) + "\n";
+        all-zones = foldAttrs (sum: current: sum + "\n" + current) ""
+          ([config.krebs.zone-head-config] ++ combined-hosts);
+        combined-hosts =
+          mapAttrsToList (name: getAttr "extraZones") config.krebs.hosts;
+      in {
+        krebs = super.krebs or {} // {
+          zones = super.krebs.zones or {} //
+            mapAttrs'
+              (name: value: {
+                name = name;
+                value = self.writeText "${name}.zone" (stripEmptyLines value);
+              })
+              all-zones;
+        };
+      })
+
+      # Implicit zones generated from config.krebs.hosts.*.nets.*.ip{4,6}.addr
+      (self: super: let
+        # record : { name : str, type : enum [ "A" "AAAA" ], data : str }
+
+        # toRecord : record.name -> record.type -> record.data -> record
+        toRecord = name: type: data:
+          { inherit name type data; };
+
+        # toRecords : str -> host -> [record]
+        toRecords = netname: host:
+          let
+            net = host.nets.${netname};
+          in
+          optionals
+            (hasAttr netname host.nets)
+            (filter
+              (x: x.data != null)
+              (concatLists [
+                (map
+                  (name: toRecord name "A" (net.ip4.addr or null))
+                  (concatMap
+                    (name: [ "${name}." "4.${name}." ])
+                    (net.aliases or [])))
+                (map
+                  (name: toRecord name "AAAA" (net.ip6.addr or null))
+                  (concatMap
+                    (name: [ "${name}." "6.${name}." ])
+                    (net.aliases or [])))
+              ]));
+
+        # formatRecord : record -> str
+        formatRecord = { name, type, data }: "${name} IN ${type} ${data}";
+
+        # writeZone : attrs -> package
+        writeZone =
+          { name ? "${domain}.zone"
+          , domain ? substring 0 1 netname
+          , nameservers ? [ "ni" ]
+          , netname
+          , hosts ? config.krebs.hosts
+          }:
+          self.writeText name /* bindzone */ ''
+            $TTL 60
+            @ IN SOA ns admin 1 3600 600 86400 60
+            @ IN NS ns
+            ${concatMapStringsSep "\n"
+              (name: /* bindzone */ "ns IN CNAME ${name}")
+              nameservers
+            }
+            ${concatMapStringsSep
+                "\n"
+                formatRecord
+                (concatMap
+                  (toRecords netname)
+                  (attrValues hosts))
+            }
+          '';
+      in {
+        krebs = super.krebs or {} // {
+          zones = super.krebs.zones or {} // {
+            i = writeZone { netname = "internet"; };
+            r = writeZone { netname = "retiolum"; };
+            w = writeZone { netname = "wiregrill"; };
+          };
+        };
+      })
+    ];
   };
 
 }
diff --git a/krebs/5pkgs/simple/certaids.nix b/krebs/5pkgs/simple/certaids.nix
new file mode 100644
index 00000000..34f4c3e1
--- /dev/null
+++ b/krebs/5pkgs/simple/certaids.nix
@@ -0,0 +1,109 @@
+{ pkgs }:
+
+pkgs.write "certaids" {
+  "/bin/cert2json".link = pkgs.writeDash "cert2json" ''
+    # usage: cert2json < CERT > JSON
+    set -efu
+
+    ${pkgs.openssl}/bin/openssl crl2pkcs7 -nocrl -certfile /dev/stdin |
+    ${pkgs.openssl}/bin/openssl pkcs7 -print_certs -text |
+    ${pkgs.gawk}/bin/awk -F, -f ${pkgs.writeText "cert2json.awk" ''
+      function abort(msg) {
+        print(msg) > "/dev/stderr"
+        exit 1
+      }
+
+      function toJSON(x,   type, ret) {
+        type = typeof(x)
+        switch (type) {
+          case "array":
+            if (isArray(x)) return arrayToJSON(x)
+            if (isObject(x)) return objectToJSON(x)
+            abort("cannot render array to JSON", x)
+          case "number":
+            return numberToJSON(x)
+          case "string":
+            return stringToJSON(x)
+          case "strnum":
+          case "unassigned":
+          case "regexp":
+          case "untyped":
+          default:
+            abort("cannot render type: " type)
+        }
+      }
+
+      function isArray(x,   i, k) {
+        i = 1
+        for (k in x) {
+          if (k != i++) return 0
+          i++
+        }
+        return 1
+      }
+
+      function isObject(x,   k) {
+        for (k in x) {
+          if (typeof(k) != "string") return 0
+        }
+        return 1
+      }
+
+      function arrayToJSON(x,   k, ret) {
+        ret = "["
+        for (k in x) {
+          ret=ret toJSON(x[k]) ","
+        }
+        sub(/,$/,"",ret)
+        ret=ret "]"
+        return ret
+      }
+
+      function objectToJSON(x,   k,ret) {
+        ret = "{"
+        for (k in x) {
+          ret = ret toJSON(k) ":" toJSON(x[k]) ","
+        }
+        sub(/,$/, "", ret)
+        ret = ret "}"
+        return ret
+      }
+
+      function numberToJSON(x) {
+        return x
+      }
+
+      function stringToJSON(x) {
+        gsub(/\\/, "&&",x)
+        gsub(/\n/, "\\n", x)
+        return "\"" x "\""
+      }
+
+      $1 ~ /^ *(Subject|Issuer):/ {
+        sub(/^ */, "")
+        sub(/: */, ",")
+        key=tolower($1)
+        sub(/[^,]*,/, "")
+
+        # Normalize separators between relative distinguished names.
+        # [1]: RFC2253, 3. Parsing a String back to a Distinguished Name
+        # TODO support any distinguished name
+        gsub(/ *[;,] */, ",")
+
+        for(i = 0; i <= NF; i++) {
+          split($i, a, "=")
+          cache[key][a[1]] = a[2]
+        }
+      }
+
+      /BEGIN CERTIFICATE/,/END CERTIFICATE/{
+        cache["certificate"] = cache["certificate"] $0 "\n"
+      }
+
+      /END CERTIFICATE/{
+        print toJSON(cache)
+        delete cache
+      }
+    ''}
+  '';
+}