7 files changed, 125 insertions, 4 deletions

diff --git a/hosts/vidhar/borg.nix b/hosts/vidhar/borg.nix
new file mode 100644
index 00000000..0a0b37a5
--- /dev/null
+++ b/hosts/vidhar/borg.nix
@@ -0,0 +1,12 @@
+{ ... }:
+{
+  config = {
+    users.users.borg = {
+      isSystemUser = true;
+      createHome = false;
+      group = "borg";
+      extraGroups = [ "ssh" ];
+    };
+    users.groups."borg" = {};
+  };
+}
diff --git a/hosts/vidhar/default.nix b/hosts/vidhar/default.nix
index b647e472..09ae1e1e 100644
--- a/hosts/vidhar/default.nix
+++ b/hosts/vidhar/default.nix
@@ -1,7 +1,7 @@
 { hostName, flake, config, pkgs, lib, ... }:
 {
   imports = with flake.nixosModules.systemProfiles; [
-    ./zfs.nix ./network ./samba.nix ./dns.nix ./prometheus
+    ./zfs.nix ./network ./samba.nix ./dns.nix ./prometheus ./borg.nix
     initrd-all-crypto-modules default-locale openssh rebuild-machines
     build-server
     initrd-ssh
diff --git a/hosts/vidhar/network/bifrost/default.nix b/hosts/vidhar/network/bifrost/default.nix
new file mode 100644
index 00000000..40666f59
--- /dev/null
+++ b/hosts/vidhar/network/bifrost/default.nix
@@ -0,0 +1,82 @@
+{ config, lib, ... }:
+
+with lib;
+
+let
+  trim = str: if hasSuffix "\n" str then trim (removeSuffix "\n" str) else str;
+in {
+  config = {
+    systemd.network = {
+      netdevs = {
+        bifrost = {
+          netdevConfig = {
+            Name = "bifrost";
+            Kind = "wireguard";
+          };
+          wireguardConfig = {
+            PrivateKeyFile = config.sops.secrets.bifrost.path;
+            ListenPort = 51822;
+          };
+          wireguardPeers = [
+            { wireguardPeerConfig = {
+                AllowedIPs = [ "2a03:4000:52:ada:4::/96" ];
+                PublicKey = trim (readFile ../../../surtr/bifrost/surtr.pub);
+                PersistentKeepalive = 5;
+                Endpoint = "2a03:4000:52:ada:::51822";
+              };
+            }
+          ];
+        };
+      };
+      networks = {
+        bifrost = {
+          name = "bifrost";
+          matchConfig = {
+            Name = "bifrost";
+          };
+          address = ["2a03:4000:52:ada:4:1::/96"];
+          routes = [
+            { routeConfig = {
+                Destination = "2a03:4000:52:ada:4::/80";
+              };
+            }
+            { routeConfig ={
+                Gateway = "2a03:4000:52:ada:4::";
+                GatewayOnLink = true;
+                Table = "bifrost";
+              };
+            }
+          ];
+          routingPolicyRules = [
+            { routingPolicyRuleConfig = {
+                Table = "bifrost";
+                From = "2a03:4000:52:ada:4:1::/96";
+                Priority = 200;
+              };
+            }
+          ];
+          linkConfig = {
+            RequiredForOnline = false;
+          };
+          networkConfig = {
+            LLMNR = false;
+            MulticastDNS = false;
+          };
+        };
+      };
+    };
+    sops.secrets.bifrost = {
+      format = "binary";
+      sopsFile = ./vidhar.priv;
+      mode = "0640";
+      owner = "root";
+      group = "systemd-network";
+    };
+    environment.etc."systemd/networkd.conf" = {
+      text = ''
+        [Network]
+        RouteTable=bifrost:1026
+      '';
+    };
+  };
+}
diff --git a/hosts/vidhar/network/bifrost/vidhar.priv b/hosts/vidhar/network/bifrost/vidhar.priv
new file mode 100644
index 00000000..273e9ba7
--- /dev/null
+++ b/hosts/vidhar/network/bifrost/vidhar.priv
@@ -0,0 +1,26 @@
+{
+        "data": "ENC[AES256_GCM,data:BSnTkjcVap00po3wV+hSXAi3BMDqwlW+PmhHAecVOl7RFxRAdqVLjIctkmDh,iv:CxKBDo81u1RegSq2lKRwRMlyNINyX3DxoFSqT97e5fM=,tag:Akdav4XxLeQnz2xFMjQ3yw==,type:str]",
+        "sops": {
+                "kms": null,
+                "gcp_kms": null,
+                "azure_kv": null,
+                "hc_vault": null,
+                "age": null,
+                "lastmodified": "2022-02-06T16:09:08Z",
+                "mac": "ENC[AES256_GCM,data:SXCQKrqkOoXlm8Mrs7UZ1CGJe/HnHhvNCuGpt8yhsnchWICfGGWEIrh99TrKkia2X1inoElwXQYYPfyKHFshLaoNjH2GduR287OXluxZs+Thnm1Fnq6oZUBO9mDDUlykZAB3Mjm4WmUnirKB87Q6DFtTRZjh26amt3oC6GwnEfE=,iv:NtPsuStBnJuVfnlbxunL9PxbPdlYktJtV+MYSa53Oc8=,tag:HKJayT/YNP8PJ/ZIlKdQSg==,type:str]",
+                "pgp": [
+                        {
+                                "created_at": "2022-02-06T16:09:08Z",
+                                "enc": "-----BEGIN PGP MESSAGE-----\n\nhF4DbYDvGI0HDr0SAQdAnjYlc0bHToon5ayDJk+08sRPPEww8MBOprZZswYU1V8w\n5+QzHJXtSbb4lEwKwdwxkkSg1wBiW+kwrV2L2yyYOvoMhWKQsntjQuzaK7I1Kjix\n0l4BOIcMVJEyJk49CEQQyFlqmgJrh9L/dMhl1D7pD842GcpGFxlB7OHRXsLo9axj\nFAuLUc35LyVgnHd2InqDwG0JKiySdI7fN3dXWiD5H3feoCDisBZvaH/5DlufdIl7\n=sLA+\n-----END PGP MESSAGE-----\n",
+                                "fp": "A1C7C95E6CAF0A965CB47277BCF50A89C1B1F362"
+                        },
+                        {
+                                "created_at": "2022-02-06T16:09:08Z",
+                                "enc": "-----BEGIN PGP MESSAGE-----\n\nhF4DXxoViZlp6dISAQdAeG22AYCyEYq1Fvqj853ZE7oeuOWOrpDOXiAvnSl83EUw\nofhjhoZ9nMyZlsy+nD06hIvaYdcFeAuSV8iHwANAjarmKlnKicT7b7mBCkOjMJDX\n0l4BAox2QUqhcYbGUKT+/Ei7RXYMP8ht1N+iisBVnzN055VrGQhvDadpcpVzQGKH\n8Hbmmdi9O2PQWRYnvRK+0I7GJFiC4Q36Kzf8X9MojMhb/GIwiBKCU0ZK2BLM9FtA\n=WbKA\n-----END PGP MESSAGE-----\n",
+                                "fp": "30D3453B8CD02FE2A3E7C78C0FB536FB87AE8F51"
+                        }
+                ],
+                "unencrypted_suffix": "_unencrypted",
+                "version": "3.7.1"
+        }
+}
\ No newline at end of file
diff --git a/hosts/vidhar/network/bifrost/vidhar.pub b/hosts/vidhar/network/bifrost/vidhar.pub
new file mode 100644
index 00000000..ef05f832
--- /dev/null
+++ b/hosts/vidhar/network/bifrost/vidhar.pub
@@ -0,0 +1 @@
+moESFbO3qUTuoOv6lbzSLrNYSjHkM5hyvAs5XZtQzRA=
diff --git a/hosts/vidhar/network/default.nix b/hosts/vidhar/network/default.nix
index a1d1b172..e8c5ba9c 100644
--- a/hosts/vidhar/network/default.nix
+++ b/hosts/vidhar/network/default.nix
@@ -1,6 +1,6 @@
 { config, lib, pkgs, ... }:
 {
-  imports = [ ./dsl.nix ];
+  imports = [ ./dsl.nix ./bifrost ];
 
   config = {
     networking = {
diff --git a/hosts/vidhar/network/ruleset.nft b/hosts/vidhar/network/ruleset.nft
index 4914777d..caa4863b 100644
--- a/hosts/vidhar/network/ruleset.nft
+++ b/hosts/vidhar/network/ruleset.nft
@@ -162,8 +162,8 @@ table inet filter {
     iifname != dsl meta l4proto $icmp_protos limit name lim_icmp_local counter name icmp-ratelimit-local-rx drop
     meta l4proto $icmp_protos counter name icmp-rx accept
 
-    iifname { lan, mgmt, dsl, yggdrasil } tcp dport 22 counter name ssh-rx accept
-    iifname { lan, mgmt, dsl, yggdrasil } udp dport 60001-61000 counter name mosh-rx accept
+    iifname { lan, mgmt, dsl, yggdrasil, bifrost } tcp dport 22 counter name ssh-rx accept
+    iifname { lan, mgmt, dsl, yggdrasil, bifrost } udp dport 60001-61000 counter name mosh-rx accept
 
     iifname { lan, mgmt, dmz01 } tcp dport 53 counter name dns-rx accept
     iifname { lan, mgmt, dmz01 } udp dport 53 counter name dns-rx accept