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-rw-r--r--nixos/modules/services/networking/avahi-daemon.nix15
-rw-r--r--nixos/modules/services/networking/ssh/sshd.nix40
-rw-r--r--nixos/modules/services/networking/supplicant.nix3
-rw-r--r--nixos/modules/services/networking/syncthing.nix115
-rw-r--r--nixos/modules/services/networking/wpa_supplicant.nix6
5 files changed, 98 insertions, 81 deletions
diff --git a/nixos/modules/services/networking/avahi-daemon.nix b/nixos/modules/services/networking/avahi-daemon.nix
index ecc091d1d03..6a786e75bbc 100644
--- a/nixos/modules/services/networking/avahi-daemon.nix
+++ b/nixos/modules/services/networking/avahi-daemon.nix
@@ -175,11 +175,20 @@ in
 
     environment.systemPackages = [ pkgs.avahi ];
 
+    systemd.sockets.avahi-daemon =
+      { description = "Avahi mDNS/DNS-SD Stack Activation Socket";
+        listenStreams = [ "/var/run/avahi-daemon/socket" ];
+        wantedBy = [ "sockets.target" ];
+      };
+
     systemd.services.avahi-daemon =
-      { description = "Avahi daemon";
+      { description = "Avahi mDNS/DNS-SD Stack";
         wantedBy = [ "multi-user.target" ];
-        # Receive restart event after resume
-        partOf = [ "post-resume.target" ];
+        requires = [ "avahi-daemon.socket" ];
+
+        serviceConfig."NotifyAccess" = "main";
+        serviceConfig."BusName" = "org.freedesktop.Avahi";
+        serviceConfig."Type" = "dbus";
 
         path = [ pkgs.coreutils pkgs.avahi ];
 
diff --git a/nixos/modules/services/networking/ssh/sshd.nix b/nixos/modules/services/networking/ssh/sshd.nix
index 3e9fae35847..81941ce1cfb 100644
--- a/nixos/modules/services/networking/ssh/sshd.nix
+++ b/nixos/modules/services/networking/ssh/sshd.nix
@@ -242,7 +242,7 @@ in
 
     systemd =
       let
-        service =
+        sshd-service =
           { description = "SSH Daemon";
 
             wantedBy = optional (!cfg.startWhenNeeded) "multi-user.target";
@@ -253,16 +253,8 @@ in
 
             environment.LD_LIBRARY_PATH = nssModulesPath;
 
-            preStart =
-              ''
-                mkdir -m 0755 -p /etc/ssh
-
-                ${flip concatMapStrings cfg.hostKeys (k: ''
-                  if ! [ -f "${k.path}" ]; then
-                      ssh-keygen -t "${k.type}" ${if k ? bits then "-b ${toString k.bits}" else ""} -f "${k.path}" -N ""
-                  fi
-                '')}
-              '';
+            wants = [ "sshd-keygen.service" ];
+            after = [ "sshd-keygen.service" ];
 
             serviceConfig =
               { ExecStart =
@@ -278,6 +270,26 @@ in
                 PIDFile = "/run/sshd.pid";
               });
           };
+
+        sshd-keygen-service =
+          { description = "SSH Host Key Generation";
+            path = [ cfgc.package ];
+            script =
+            ''
+              mkdir -m 0755 -p /etc/ssh
+              ${flip concatMapStrings cfg.hostKeys (k: ''
+                if ! [ -f "${k.path}" ]; then
+                  ssh-keygen -t "${k.type}" ${if k ? bits then "-b ${toString k.bits}" else ""} -f "${k.path}" -N ""
+                fi
+              '')}
+            '';
+
+            serviceConfig = {
+              Type = "oneshot";
+              RemainAfterExit = "yes";
+            };
+          };
+
       in
 
       if cfg.startWhenNeeded then {
@@ -289,11 +301,13 @@ in
             socketConfig.Accept = true;
           };
 
-        services."sshd@" = service;
+        services.sshd-keygen = sshd-keygen-service;
+        services."sshd@" = sshd-service;
 
       } else {
 
-        services.sshd = service;
+        services.sshd-keygen = sshd-keygen-service;
+        services.sshd = sshd-service;
 
       };
 
diff --git a/nixos/modules/services/networking/supplicant.nix b/nixos/modules/services/networking/supplicant.nix
index e433ec7c5b9..0c459fb1dd0 100644
--- a/nixos/modules/services/networking/supplicant.nix
+++ b/nixos/modules/services/networking/supplicant.nix
@@ -34,7 +34,8 @@ let
       '';
     in
       { description = "Supplicant ${iface}${optionalString (iface=="WLAN"||iface=="LAN") " %I"}";
-        wantedBy = [ "network.target" ] ++ deps;
+        wantedBy = [ "multi-user.target" ] ++ deps;
+        wants = [ "network.target" ];
         bindsTo = deps;
         after = deps;
         before = [ "network.target" ];
diff --git a/nixos/modules/services/networking/syncthing.nix b/nixos/modules/services/networking/syncthing.nix
index 8a430734319..dcdc203bdc6 100644
--- a/nixos/modules/services/networking/syncthing.nix
+++ b/nixos/modules/services/networking/syncthing.nix
@@ -3,46 +3,11 @@
 with lib;
 
 let
-
   cfg = config.services.syncthing;
   defaultUser = "syncthing";
-
-  header = {
-    description = "Syncthing service";
-    after = [ "network.target" ];
-    environment = {
-      STNORESTART = "yes";
-      STNOUPGRADE = "yes";
-      inherit (cfg) all_proxy;
-    } // config.networking.proxy.envVars;
-  };
-
-  service = {
-    Restart = "on-failure";
-    SuccessExitStatus = "2 3 4";
-    RestartForceExitStatus="3 4";
-  };
-
-  iNotifyHeader = {
-    description = "Syncthing Inotify File Watcher service";
-    after = [ "network.target" "syncthing.service" ];
-    requires = [ "syncthing.service" ];
-  };
-
-  iNotifyService = {
-    SuccessExitStatus = "2";
-    RestartForceExitStatus = "3";
-    Restart = "on-failure";
-  };
-
-in
-
-{
-
+in {
   ###### interface
-
   options = {
-
     services.syncthing = {
 
       enable = mkEnableOption ''
@@ -100,6 +65,19 @@ in
         '';
       };
 
+      openDefaultPorts = mkOption {
+        type = types.bool;
+        default = false;
+        example = literalExample "true";
+        description = ''
+          Open the default ports in the firewall:
+            - TCP 22000 for transfers
+            - UDP 21027 for discovery
+          If multiple users are running syncthing on this machine, you will need to manually open a set of ports for each instance and leave this disabled.
+          Alternatively, if are running only a single instance on this machine using the default ports, enable this.
+        '';
+      };
+
       package = mkOption {
         type = types.package;
         default = pkgs.syncthing;
@@ -117,6 +95,14 @@ in
 
   config = mkIf cfg.enable {
 
+    networking.firewall = mkIf cfg.openDefaultPorts {
+      allowedTCPPorts = [ 22000 ];
+      allowedUDPPorts = [ 21027 ];
+    };
+
+    systemd.packages = [ pkgs.syncthing ]
+                       ++ lib.optional cfg.useInotify pkgs.syncthing-inotify;
+
     users = mkIf (cfg.user == defaultUser) {
       extraUsers."${defaultUser}" =
         { group = cfg.group;
@@ -131,39 +117,44 @@ in
     };
 
     systemd.services = {
-      syncthing = mkIf cfg.systemService (header // {
-          wants = mkIf cfg.useInotify [ "syncthing-inotify.service" ];
-          wantedBy = [ "multi-user.target" ];
-          serviceConfig = service // {
-            User = cfg.user;
-            Group = cfg.group;
-            PermissionsStartOnly = true;
-            ExecStart = "${cfg.package}/bin/syncthing -no-browser -home=${cfg.dataDir}";
-          };
-      });
-
-      syncthing-inotify = mkIf (cfg.systemService && cfg.useInotify) (iNotifyHeader // {
+      syncthing = mkIf cfg.systemService {
+        description = "Syncthing service";
+        after = [ "network.target" ];
+        environment = {
+          STNORESTART = "yes";
+          STNOUPGRADE = "yes";
+          inherit (cfg) all_proxy;
+        } // config.networking.proxy.envVars;
+        wants = mkIf cfg.useInotify [ "syncthing-inotify.service" ];
         wantedBy = [ "multi-user.target" ];
-        serviceConfig = iNotifyService // {
+        serviceConfig = {
+          Restart = "on-failure";
+          SuccessExitStatus = "2 3 4";
+          RestartForceExitStatus="3 4";
           User = cfg.user;
-          ExecStart = "${pkgs.syncthing-inotify.bin}/bin/syncthing-inotify -home=${cfg.dataDir} -logflags=0";
+          Group = cfg.group;
+          PermissionsStartOnly = true;
+          ExecStart = "${cfg.package}/bin/syncthing -no-browser -home=${cfg.dataDir}";
         };
-      });
-    };
+      };
 
-    systemd.user.services = {
-      syncthing = header // {
-        serviceConfig = service // {
-          ExecStart = "${cfg.package}/bin/syncthing -no-browser";
-        };
+      syncthing-resume = {
+        wantedBy = [ "suspend.target" ];
       };
 
-      syncthing-inotify = mkIf cfg.useInotify (iNotifyHeader // {
-        serviceConfig = iNotifyService // {
-          ExecStart = "${pkgs.syncthing-inotify.bin}/bin/syncthing-inotify -logflags=0";
+      syncthing-inotify = mkIf (cfg.systemService && cfg.useInotify) {
+        description = "Syncthing Inotify File Watcher service";
+        after = [ "network.target" "syncthing.service" ];
+        requires = [ "syncthing.service" ];
+        wantedBy = [ "multi-user.target" ];
+        serviceConfig = {
+          SuccessExitStatus = "2";
+          RestartForceExitStatus = "3";
+          Restart = "on-failure";
+          User = cfg.user;
+          ExecStart = "${pkgs.syncthing-inotify.bin}/bin/syncthing-inotify -home=${cfg.dataDir} -logflags=0";
         };
-      });
+      };
     };
-
   };
 }
diff --git a/nixos/modules/services/networking/wpa_supplicant.nix b/nixos/modules/services/networking/wpa_supplicant.nix
index a344d785546..5657b91c1e7 100644
--- a/nixos/modules/services/networking/wpa_supplicant.nix
+++ b/nixos/modules/services/networking/wpa_supplicant.nix
@@ -128,9 +128,11 @@ in {
     in {
       description = "WPA Supplicant";
 
-      after = [ "network.target" ] ++ lib.concatMap deviceUnit ifaces;
+      after = lib.concatMap deviceUnit ifaces;
+      before = [ "network.target" ];
+      wants = [ "network.target" ];
       requires = lib.concatMap deviceUnit ifaces;
-      wantedBy = [ "network-online.target" ];
+      wantedBy = [ "multi-user.target" ];
 
       path = [ pkgs.wpa_supplicant ];