From 24b53785cce8f81e2171c2e4042bfd4e3d0b2606 Mon Sep 17 00:00:00 2001
From: Jonas Heinrich <onny@project-insanity.org>
Date: Wed, 13 Apr 2022 19:20:37 +0200
Subject: [PATCH] nixos/create_ap: add module

---
 .../from_md/release-notes/rl-2205.section.xml |  8 +++
 .../manual/release-notes/rl-2205.section.md   |  2 +
 nixos/modules/module-list.nix                 |  1 +
 .../modules/services/networking/create_ap.nix | 50 +++++++++++++++++++
 .../linux/linux-wifi-hotspot/default.nix      | 15 ++++--
 5 files changed, 71 insertions(+), 5 deletions(-)
 create mode 100644 nixos/modules/services/networking/create_ap.nix

diff --git a/nixos/doc/manual/from_md/release-notes/rl-2205.section.xml b/nixos/doc/manual/from_md/release-notes/rl-2205.section.xml
index af2aecda0da..05b3822cab7 100644
--- a/nixos/doc/manual/from_md/release-notes/rl-2205.section.xml
+++ b/nixos/doc/manual/from_md/release-notes/rl-2205.section.xml
@@ -375,6 +375,14 @@
           <link xlink:href="options.html#opt-services.headscale.enable">services.headscale</link>
         </para>
       </listitem>
+      <listitem>
+        <para>
+          <link xlink:href="https://github.com/lakinduakash/linux-wifi-hotspot">create_ap</link>,
+          a module for creating wifi hotspots using the program
+          linux-wifi-hotspot. Available as
+          <link xlink:href="options.html#opt-services.create_ap.enable">services.create_ap</link>.
+        </para>
+      </listitem>
       <listitem>
         <para>
           <link xlink:href="https://0xerr0r.github.io/blocky/">blocky</link>,
diff --git a/nixos/doc/manual/release-notes/rl-2205.section.md b/nixos/doc/manual/release-notes/rl-2205.section.md
index 6d22973fb9b..16c59ce3ddd 100644
--- a/nixos/doc/manual/release-notes/rl-2205.section.md
+++ b/nixos/doc/manual/release-notes/rl-2205.section.md
@@ -107,6 +107,8 @@ In addition to numerous new and upgraded packages, this release has the followin
 
 - [headscale](https://github.com/juanfont/headscale), an Open Source implementation of the [Tailscale](https://tailscale.io) Control Server. Available as [services.headscale](options.html#opt-services.headscale.enable)
 
+- [create_ap](https://github.com/lakinduakash/linux-wifi-hotspot), a module for creating wifi hotspots using the program linux-wifi-hotspot. Available as [services.create_ap](options.html#opt-services.create_ap.enable).
+
 - [blocky](https://0xerr0r.github.io/blocky/), fast and lightweight DNS proxy as ad-blocker for local network with many features.
 
 - [pacemaker](https://clusterlabs.org/pacemaker/) cluster resource manager
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index 9aa8817ca51..132416d865f 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -740,6 +740,7 @@
   ./services/networking/coredns.nix
   ./services/networking/corerad.nix
   ./services/networking/coturn.nix
+  ./services/networking/create_ap.nix
   ./services/networking/croc.nix
   ./services/networking/dante.nix
   ./services/networking/ddclient.nix
diff --git a/nixos/modules/services/networking/create_ap.nix b/nixos/modules/services/networking/create_ap.nix
new file mode 100644
index 00000000000..a3c330fab00
--- /dev/null
+++ b/nixos/modules/services/networking/create_ap.nix
@@ -0,0 +1,50 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.services.create_ap;
+  configFile = pkgs.writeText "create_ap.conf" (generators.toKeyValue { } cfg.settings);
+in {
+  options = {
+    services.create_ap = {
+      enable = mkEnableOption "setup wifi hotspots using create_ap";
+      settings = mkOption {
+        type = with types; attrsOf (oneOf [ int bool str ]);
+        default = {};
+        description = ''
+          Configuration for <package>create_ap</package>.
+          See <link xlink:href="https://raw.githubusercontent.com/lakinduakash/linux-wifi-hotspot/master/src/scripts/create_ap.conf">upstream example configuration</link>
+          for supported values.
+        '';
+        example = {
+          INTERNET_IFACE = "eth0";
+          WIFI_IFACE = "wlan0";
+          SSID = "My Wifi Hotspot";
+          PASSPHRASE = "12345678";
+        };
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+
+    systemd = {
+      services.create_ap = {
+        wantedBy = [ "multi-user.target" ];
+        description = "Create AP Service";
+        after = [ "network.target" ];
+        restartTriggers = [ configFile ];
+        serviceConfig = {
+          ExecStart = "${pkgs.linux-wifi-hotspot}/bin/create_ap --config ${configFile}";
+          KillSignal = "SIGINT";
+          Restart = "on-failure";
+        };
+      };
+    };
+
+  };
+
+  meta.maintainers = with lib.maintainers; [ onny ];
+
+}
diff --git a/pkgs/os-specific/linux/linux-wifi-hotspot/default.nix b/pkgs/os-specific/linux/linux-wifi-hotspot/default.nix
index 2cefc9b0216..a29fe923f60 100644
--- a/pkgs/os-specific/linux/linux-wifi-hotspot/default.nix
+++ b/pkgs/os-specific/linux/linux-wifi-hotspot/default.nix
@@ -8,7 +8,13 @@
 , iw
 , makeWrapper
 , qrencode
-, hostapd }:
+, hostapd
+, getopt
+, dnsmasq
+, iproute2
+, flock
+, iptables
+, gawk }:
 
 stdenv.mkDerivation rec {
   pname = "linux-wifi-hotspot";
@@ -41,9 +47,6 @@ stdenv.mkDerivation rec {
       --replace "etc" "$out/etc"
     substituteInPlace ./src/scripts/wihotspot \
       --replace "/usr" "$out"
-    substituteInPlace ./src/scripts/create_ap.service \
-      --replace "/usr/bin/create_ap" "$out/bin/create_cap" \
-      --replace "/etc/create_ap.conf" "$out/etc/create_cap.conf"
   '';
 
   makeFlags = [
@@ -52,7 +55,9 @@ stdenv.mkDerivation rec {
 
   postInstall = ''
     wrapProgram $out/bin/create_ap \
-      --prefix PATH : ${lib.makeBinPath [ hostapd ]}
+      --prefix PATH : ${lib.makeBinPath [
+          hostapd getopt iw which dnsmasq iproute2 flock iptables gawk
+        ]}
 
     wrapProgram $out/bin/wihotspot-gui \
       --prefix PATH : ${lib.makeBinPath [ iw ]} \