Give the VPN its final name 'Tunnel'

Signed-off-by: Mel <mel@rnrd.eu>

1 files changed, 0 insertions, 201 deletions

diff --git a/modules/vpn/ingress.nix b/modules/vpn/ingress.nix
deleted file mode 100644
index 6c6a78e..0000000
--- a/modules/vpn/ingress.nix
+++ /dev/null
@@ -1,201 +0,0 @@
-{
-  config,
-  lib,
-  ...
-}:
-
-let
-  inherit (lib)
-    imap0
-    attrValues
-    mergeAttrsList
-    replaceString
-    concatImapStringsSep
-    ;
-
-  definition = import ./definition.nix;
-
-  inherit (definition) paths users mask;
-
-  ownAddress = "10.123.X.1"; # ip of host running the ingress vpn (per-interface)
-
-  addressFromTemplate =
-    index: template: prefix:
-    "${replaceString "X" (toString (index + 1)) template}/${toString prefix}";
-
-  ingressName = index: "vpn-ingress${toString index}";
-  egressName = "vpn-egress0";
-  egressAddress = "10.123.255.1/16"; # /16 encompasses all possible subnet addresses
-  egressMTU = 1400;
-
-  egressHost = name: "${name}.rnrd.eu";
-in
-{
-  boot.kernel.sysctl = {
-    "net.ipv4.ip_forward" = 1; # allow ipv4 forwarding
-  };
-
-  networking.firewall = {
-    allowedUDPPorts = map (x: x.port) paths;
-    allowedTCPPorts = map (x: x.port) paths;
-    checkReversePath = "loose";
-  };
-
-  age.secrets.ingress-key = {
-    file = ../../secrets/vpn/ingress-key.age;
-    owner = "systemd-network";
-  };
-
-  systemd.network =
-    let
-      mkNetdev = index: path: {
-        "10-${ingressName index}" = {
-          netdevConfig = {
-            Kind = "wireguard";
-            Name = ingressName index;
-          };
-          wireguardConfig = {
-            PrivateKeyFile = config.age.secrets.ingress-key.path;
-            ListenPort = path.port;
-          };
-          wireguardPeers = map (user: {
-            PublicKey = user.key;
-            AllowedIPs = [ (addressFromTemplate index user.ip 32) ];
-          }) (attrValues users);
-        };
-      };
-
-      mkNetwork = index: path: {
-        "10-${ingressName index}" = {
-          name = ingressName index;
-          address = [ (addressFromTemplate index ownAddress 24) ];
-          routingPolicyRules = [
-            {
-              IncomingInterface = ingressName index;
-              Table = 100;
-            }
-          ];
-        };
-      };
-
-      ingressNetdevs = imap0 mkNetdev paths;
-
-      ingressNetworks = imap0 mkNetwork paths;
-      egressNetworks = [
-        {
-          "20-${egressName}" = {
-            name = egressName;
-            address = [ egressAddress ];
-            networkConfig = {
-              IPv4ReversePathFilter = "loose";
-            };
-            linkConfig = {
-              ActivationPolicy = "up";
-              RequiredForOnline = "no"; # does not count as online
-              MTUBytes = toString egressMTU;
-            };
-            routes = [
-              {
-                Destination = "0.0.0.0/0";
-                Table = 100;
-                Scope = "link";
-              }
-            ];
-          };
-        }
-      ];
-    in
-    {
-      netdevs = mergeAttrsList ingressNetdevs;
-      networks = mergeAttrsList (ingressNetworks ++ egressNetworks);
-    };
-
-  # allow forwarding packets between egress and ingress, but avoid any snat,
-  # ip should always keep it's origin form, for correct egress routing.
-  # also adapt mss to outgoing mss value, so that we don't shatter packets.
-  networking.nftables.ruleset =
-    let
-      ingressInterfaces = concatImapStringsSep "\", \"" (i: _: ingressName (i - 1)) paths;
-    in
-    ''
-      table inet filter {
-        chain forward {
-          type filter hook forward priority 0; policy drop;
-
-          tcp flags syn tcp option maxseg size set rt mtu
-
-          iifname { "${ingressInterfaces}" } oifname "${egressName}" accept
-          iifname "${egressName}" oifname { "${ingressInterfaces}" } accept
-        }
-      }
-    '';
-
-  # sing-box is a vpn client supporting various protocols which will allow us
-  # to configure it in whichever way we want to avoid russian dpi.
-  # in this case, our communications crossing the borders are relying on vless.
-  services.sing-box =
-    let
-      inboundName = "vpn-in";
-      outboundName = egress: "vpn-out-${egress}";
-    in
-    {
-      enable = true;
-      settings = {
-        inbounds = [
-          {
-            type = "tun";
-            tag = inboundName;
-            interface_name = egressName;
-            address = [ egressAddress ];
-            mtu = egressMTU;
-            stack = "gvisor";
-            auto_route = false; # we route manually
-            strict_route = false;
-            endpoint_independent_nat = true;
-          }
-        ];
-
-        outbounds = map (path: {
-          type = "vless";
-          flow = "xtls-rprx-vision";
-
-          server = egressHost path.egress;
-          server_port = 443;
-
-          tag = outboundName path.egress;
-          uuid = path.info.uuid;
-
-          tls = {
-            enabled = true;
-            server_name = "www.${mask}";
-
-            utls = {
-              enabled = true;
-              fingerprint = "chrome";
-            };
-
-            reality = {
-              enabled = true;
-              public_key = path.info.public;
-              short_id = path.info.short;
-            };
-          };
-        }) paths;
-
-        route = {
-          rules = imap0 (index: path: {
-            inbound = inboundName;
-            source_ip_cidr = [ (addressFromTemplate index "10.123.X.0" 24) ];
-            outbound = outboundName path.egress;
-          }) paths;
-
-          auto_detect_interface = true;
-        };
-
-        log = {
-          level = "debug";
-          timestamp = true;
-        };
-      };
-    };
-}