modules/hostapd/default.nix

@@ -20,6 +20,10 @@ in {
     system.service.hostapd = mkOption {
       type = liminix.lib.types.serviceDefn;
     };
+
+    system.service.hostapd-ready = mkOption {
+      type = liminix.lib.types.serviceDefn;
+    };
   };
   config = {
     system.service.hostapd = liminix.callService ./service.nix {
@@ -34,5 +38,12 @@ in {
         type = types.attrs;
       };
     };
+
+    system.service.hostapd-ready = liminix.callService ./ready.nix {
+      interface = mkOption {
+        type = liminix.lib.types.interface;
+        description = "Interface for which to wait that the oper state Master or Master (VLAN) has been reached.";
+      };
+    };
   };
 }

modules/hostapd/ready.nix

@@ -0,0 +1,16 @@
+{
+  liminix
+, ifwait
+, lib
+}:
+{ interface } :
+let
+  inherit (liminix.services) oneshot;
+in oneshot {
+  name = "${interface.name}.wlan-oper";
+  up = ''
+    ${ifwait}/bin/ifbridgeable -v $(output ${interface} ifname)
+  '';
+
+  dependencies = [ interface ];
+}

pkgs/anoia/Makefile

@@ -1,5 +1,5 @@
 
-default: fs.lua init.lua nl.lua svc.lua net/constants.lua
+default: wlan.lua fs.lua init.lua nl.lua svc.lua net/constants.lua
 
 test:
 	ln -s . anoia

pkgs/anoia/default.nix

@@ -4,6 +4,7 @@
 , linotify
 , lua
 , lualinux
+, iwinfo
 , cpio
 }:
 let pname =  "anoia";
@@ -12,7 +13,7 @@ in stdenv.mkDerivation {
   version = "0.1";
   src = ./.;
   nativeBuildInputs = [ fennel cpio ];
-  buildInputs = with lua.pkgs; [ linotify lualinux ];
+  buildInputs = with lua.pkgs; [ linotify lualinux iwinfo ];
   outputs = [ "out" "dev" ];
 
   doCheck = true;

pkgs/anoia/wlan.fnl

@@ -0,0 +1,8 @@
+(local { : nl80211 } (require :iwinfo))
+
+(fn is-bridgeable [ifname]
+  (let [mode (nl80211.mode ifname)]
+    (or (= mode "Master") (= mode "Master (VLAN)"))
+))
+
+{ : is-bridgeable }

pkgs/fennelrepl/default.nix

@@ -20,7 +20,6 @@ let packages = [
       lualinux
       netlink-lua
       iwinfo
-      lua.pkgs.readline
     ];
     join = ps: builtins.concatStringsSep ";" ps;
     luapath = join (builtins.map (f:

pkgs/ifwait/default.nix

@@ -1,6 +1,8 @@
 {
   lua
 , netlink-lua
+, lualinux
+, iwinfo
 , writeFennelScript
 , runCommand
 , anoia
@@ -8,4 +10,5 @@
 runCommand "ifwait" {} ''
   mkdir -p $out/bin
   cp -p ${writeFennelScript "ifwait" [ anoia netlink-lua ] ./ifwait.fnl} $out/bin/ifwait
+  cp -p ${writeFennelScript "ifbridgeable" [ anoia lualinux iwinfo ] ./ifbridgeable.fnl} $out/bin/ifbridgeable
 ''

pkgs/ifwait/ifbridgeable.fnl

@@ -0,0 +1,30 @@
+(local wlan (require :anoia.wlan))
+(local { : assoc } (require :anoia))
+(local { : msleep } (require :lualinux))
+
+(fn parse-args [args]
+  (match args
+    ["-v" & rest]  (assoc (parse-args rest) :verbose true)
+    [linkname] {:link linkname}
+    _  nil))
+
+(fn run [args poll-fn]
+  (let [parameters
+        (assert (parse-args args)
+                (.. "Usage: ifbridgeable [-v] ifname"))]
+    (when parameters.verbose
+      (print (.. "ifbridgeable: waiting for "
+                 parameters.link " to be bridgeable")))
+
+    (while (not (poll-fn parameters.link))
+      (when parameters.verbose
+        (print (.. "ifbridgeable: waiting for " parameters.link " to be bridgeable")))
+      (msleep 500)
+    )
+  )
+)
+
+(when (not (= (. arg 0) "test"))
+  (run arg wlan.is-bridgeable))
+
+{ : run  }

pkgs/write-fennel/default.nix

@@ -27,7 +27,7 @@ name :
        echo "#!${lua}/bin/lua ${luaFlags}"
        echo "package.path = ${lib.strings.escapeShellArg (builtins.concatStringsSep "" luapath)} .. package.path"
        echo "package.cpath = ${lib.strings.escapeShellArg (builtins.concatStringsSep "" luacpath)} .. package.cpath"
-       echo "local ok, stdlib = pcall(require,'posix.stdlib'); if ok then stdlib.setenv('PATH',${lib.escapeShellArg (lib.makeBinPath packages)} .. \":\" .. os.getenv('PATH')) end"
+       echo "local ok, stdlib = pcall(require,'posix.stdlib'); if ok then stdlib.setenv('PATH', \"${lib.makeBinPath packages}\" .. \":\" .. os.getenv('PATH')) end"
        fennel ${if correlate then "--correlate" else ""} --compile ${source}
       ) >  ${name}.lua
     '';