···

       
21
       
 
       
    ./dnsmasq.nix

     

       
22
       
 
       
    ./nftables.nix

     

       
23
       
 
       
    ./upnp.nix

     

       
24
       
-
       
    ./mdns.nix

     

       
25
       
 
       
    ./kernel.nix

     

       
26
       
 
       
  ];

     

       
27
       
 
       
}

     

···

       
21
       
 
       
    ./dnsmasq.nix

     

       
22
       
 
       
    ./nftables.nix

     

       
23
       
 
       
    ./upnp.nix

     

       
0
       
 
       

     

       
24
       
 
       
    ./kernel.nix

     

       
25
       
 
       
  ];

     

       
26
       
 
       
}

     

···

       
1
       
-
       
{ lib, config, ... }:

     

       
2
       
-
       


     

       
3
       
-
       
with lib;

     

       
4
       
-
       
let

     

       
5
       
-
       
  cfg = config.modules.router;

     

       
6
       
-
       
  intern = cfg.interfaces.internal;

     

       
7
       
-
       
  extern = cfg.interfaces.external;

     

       
8
       
-
       
in {

     

       
9
       
-
       
  options.modules.router = {

     

       
10
       
-
       
    mdns.enable = mkOption {

     

       
11
       
-
       
      default = false;

     

       
12
       
-
       
      description = "Whether to enable mDNS Discovery Service";

     

       
13
       
-
       
      type = types.bool;

     

       
14
       
-
       
    };

     

       
15
       
-
       
  };

     

       
16
       
-
       


     

       
17
       
-
       
  config = mkIf (cfg.mdns.enable && cfg.enable && intern != null) {

     

       
18
       
-
       
    services.avahi = {

     

       
19
       
-
       
      enable = true;

     

       
20
       
-
       
      allowInterfaces = if intern != null then [ intern.name ] else [];

     

       
21
       
-
       
      denyInterfaces = [ extern.name ];

     

       
22
       
-
       
    };

     

       
23
       
-
       
  };

     

       
24
       
-
       
}

     

···

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

···

       
56
       
 
       
        else "127.0.0.1";

     

       
57
       
 
       
      example = "127.0.0.1";

     

       
58
       
 
       
    };

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
59
       
 
       
    interfaces = {

     

       
60
       
 
       
      external = mkOption {

     

       
61
       
 
       
        type = interfaceType;

     
···

       
107
       
 
       
            IPv4Forwarding = true;

     

       
108
       
 
       
            IPv6Forwarding = true;

     

       
109
       
 
       
            ConfigureWithoutCarrier = true;

     

       
0
       
 
       

     

       
110
       
 
       
          };

     

       
111
       
 
       
        };

     

       
112
       
 
       
      });

     

       
113
       
 
       
    };

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
114
       
 
       
  };

     

       
115
       
 
       
}

     

···

       
56
       
 
       
        else "127.0.0.1";

     

       
57
       
 
       
      example = "127.0.0.1";

     

       
58
       
 
       
    };

     

       
59
       
+
       
    mdns = mkOption {

     

       
60
       
+
       
      type = types.bool;

     

       
61
       
+
       
      default = !config.services.avahi.enable;

     

       
62
       
+
       
    };

     

       
63
       
 
       
    interfaces = {

     

       
64
       
 
       
      external = mkOption {

     

       
65
       
 
       
        type = interfaceType;

     
···

       
111
       
 
       
            IPv4Forwarding = true;

     

       
112
       
 
       
            IPv6Forwarding = true;

     

       
113
       
 
       
            ConfigureWithoutCarrier = true;

     

       
114
       
+
       
            MulticastDNS = cfg.mdns;

     

       
115
       
 
       
          };

     

       
116
       
 
       
        };

     

       
117
       
 
       
      });

     

       
118
       
 
       
    };

     

       
119
       
+
       


     

       
120
       
+
       
    services.resolved.extraConfig = optionalString cfg.mdns ''

     

       
121
       
+
       
      DNSStubListener=no

     

       
122
       
+
       
      MulticastDNS=yes

     

       
123
       
+
       
    '';

     

       
124
       
 
       
  };

     

       
125
       
 
       
}