feat(networkmanager): declarative

configs/networkmanager.nix

@@ -1,13 +1,82 @@
-{ pkgs, ... }:
+{ lib, pkgs, ... }:
 let
   autowifi = pkgs.writers.writePython3Bin "autowifi" { flakeIgnore = [ "E501" ]; } <stockholm/lass/5pkgs/autowifi/autowifi.py>;
+  profile = name: custom: lib.recursiveUpdate {
+    connection.id = name;
+    connection.type = "wifi";
+    connection.interface-name = "wlp3s0";
+    connection.permissions = "";
+    wifi.mac-address-blacklist = "";
+    wifi.ssid = name;
+    wifi.mode = "infrastructure";
+    ipv4.dns-search = "";
+    ipv4.method = "auto";
+    ipv6.addr-gen-mode = "stable-privacy";
+    ipv6.dns-search = "";
+    ipv6.method = "auto";
+    proxy = {};
+  } custom;
+  eduroamProfile = {
+    connection.uuid = "eae9fee6-a7d2-4120-a609-440b457d6fcf";
+    wifi-security = {
+      group = "ccmp;tkip;";
+      key-mgmt = "wpa-eap";
+      pairwise = "ccmp;";
+      proto = "rsn;";
+    };
+    "802-1x" = {
+      altsubject-matches = "DNS:srv1-radius.cms.hu-berlin.de;DNS:srv2-radius.cms.hu-berlin.de;";
+      anonymous-identity = "anonymous@wlan.hu-berlin.de";
+      ca-cert = pkgs.fetchurl {
+        url = "https://www.cms.hu-berlin.de/de/dl/netze/wlan/config/eduroam/t-telesec_globalroot_class_2.pem";
+        sha256 = "0if8aqd06sid7a0vw009zpa087wxcgdd2x6z2zs4pis5kvyqj2dk";
+      };
+      eap = "ttls;";
+      identity = lib.strings.fileContents <secrets/eduroam/identity>;
+      password = lib.strings.fileContents <secrets/eduroam/password>;
+      phase2-auth = "pap";
+    };
+  };
 in
 {
+  imports = [ <niveum/modules/networkmanager-declarative.nix> ];
+
   networking.networkmanager = {
     enable = true;
     wifi.macAddress = "random";
     ethernet.macAddress = "random";
     unmanaged = [ "docker*" ];
+    profiles = lib.mapAttrs profile {
+      Aether = {
+        connection.uuid = "7138bb0f-1aeb-4905-890e-a6628427aa21";
+        wifi-security = {
+          psk = lib.strings.fileContents <secrets/wifi/Aether.psk>;
+          auth-alg = "open";
+          key-mgmt = "wpa-psk";
+        };
+      };
+      FactoryCommunityGuest = {
+        connection.uuid = "fb1f2e52-651e-48b5-a72c-1accddf31afb";
+        connection.timestamp = "1631885129";
+        wifi.seen-bssids = "54:EC:2F:19:30:DC;54:EC:2F:19:5C:9C;54:EC:2F:58:E4:3C;";
+        wifi-security = {
+          psk = "Factory4ever";
+          auth-alg = "open";
+          key-mgmt = "wpa-psk";
+        };
+      };
+      o2-WLAN66 = {
+        connection.uuid = "c563aec3-f344-4ffb-8d1c-60a6cdac8fe0";
+        wifi-security = {
+          psk = "PK3468KV488T934U";
+          auth-alg = "open";
+          key-mgmt = "wpa-psk";
+        };
+      };
+      "WIFI@DB".connection.uuid = "4eff4e94-8850-4e9f-a338-1787d0d90479";
+      eduroam = eduroamProfile;
+      eduroam_5GHz = eduroamProfile;
+    };
   };
 
   users.users.me.extraGroups = [ "networkmanager" ];

modules/networkmanager-declarative.nix

@@ -0,0 +1,50 @@
+# https://github.com/jmackie/nixos-networkmanager-profiles/
+{ lib, config, ... }:
+with lib;
+let
+  nm = config.networking.networkmanager;
+
+  mkProfile = profileAttrs:
+    if !(isAttrs profileAttrs) then
+      throw "error 1"
+    else {
+      enable = true;
+      mode = "0400"; # readonly (user)
+      text = (foldlAttrs (accum:
+        { name, value }: ''
+          ${accum}
+
+          [${name}] ${mkProfileEntry value}'')
+        "# Generated by nixos-networkmanager-profiles" profileAttrs) + "\n";
+    };
+
+  mkProfileEntry = entryAttrs:
+    if !(isAttrs entryAttrs) then
+      throw "error 2"
+    else
+      foldlAttrs (accum:
+        { name, value }: ''
+          ${accum}
+          ${name}=${toString value}'') "" entryAttrs;
+
+  foldlAttrs = op: nul: attrs:
+    foldl (accum: { fst, snd }: op accum (nameValuePair fst snd)) nul
+    (lists.zipLists (attrNames attrs) (attrValues attrs));
+
+  attrLength = attrs: length (attrValues attrs);
+
+in {
+  options.networking.networkmanager.profiles = mkOption {
+    type = types.attrs;
+    default = { };
+  };
+
+  config = mkIf (attrLength nm.profiles > 0) {
+    environment.etc = (foldlAttrs (accum:
+      { name, value }:
+      accum // {
+        "NetworkManager/system-connections/${name}.nmconnection" =
+          mkProfile value;
+      }) { } nm.profiles);
+  };
+}