improve PS2 handling

samba.nix

@@ -2,34 +2,63 @@
 
 {
 
+users.users.samba = {
+  isSystemUser = true;
+  description = "Samba User";
+  extraGroups = [ "samba" ];
+};
+
 services.samba = {
   enable = true;
   securityType = "user";
   extraConfig = ''
-    workgroup = WORKGROUP
-    server string = smbnix
-    netbios name = smbnix
-    security = user 
-    #use sendfile = yes
-    #max protocol = smb2
-    min protocol = NT1
-    hosts allow = 192.168.0  localhost
-    hosts deny = 0.0.0.0/0
-    guest account = nobody
-    map to guest = bad user
+  workgroup = WORKGROUP
+  server string = PS2 Samba Server
+  server role = standalone server
+  max log size = 0
+
+  # Disable printers.
+  load printers = no
+  printing = bsd
+  printcap name = /etc/printcap
+  printcap cache time = 0
+  disable spoolss = yes
+
+  pam password change = yes
+  map to guest = bad user
+  usershare allow guests = yes
+  create mask = 0664
+  force create mode = 0664
+  directory mask = 0775
+  force directory mode = 0775
+  force user = 
+  force group = users
+
+  # ===========================
+  # PlayStations 2 OPL settings
+  # ===========================
+  # Lower the minimum protocol to NT1 (a SMB1 dialect), this is required since
+  # Samba 4.11 changed the default and deprecated SMB1.
+  # See https://github.com/ifcaro/Open-PS2-Loader/issues/86 and
+  # https://github.com/ps2dev/ps2sdk/issues/72 for future SMB2 support.
+  server min protocol = NT1
+  server signing = disabled
+  smb encrypt = disabled
+  socket options = TCP_NODELAY TCP_KEEPIDLE=20 IPTOS_LOWDELAY SO_KEEPALIVE
+
+  # Disable keepalive to avoid hanging onto locks. Should not be needed
+  # due to SO_KEEPALIVE and helps with FMV audio stutter.
+  keepalive = 0
   '';
   shares = {
-    public = {
+    PS2SMB = {
+      "comment" = "PlaStation 2";
       path = "/mnt/ps2";
       browseable = "yes";
       "read only" = "no";
       "guest ok" = "yes";
       "public" = "yes";
       "available" = "yes";
-      "create mask" = "0644";
-      "directory mask" = "0755";
-      "force user" = "username";
-      "force group" = "groupname";
     };
   };
 };