···

       
4
       
4
       
 
       
  nodes.machine = { pkgs, ... }: {

     

       
5
       
5
       
 
       
    testing.initrdBackdoor = true;

     

       
6
       
6
       
 
       
    boot.initrd.systemd.enable = true;

     

       
7
       
7
       
-
       
    boot.initrd.kernelModules = [ "loop" ]; # Load module in initrd.

     

       
7
       
7
       
+
       
    boot.initrd.kernelModules = [ "tcp_hybla" ]; # Load module in initrd.

     

       
8
       
8
       
 
       
    boot.extraModprobeConfig = ''

     

       
9
       
9
       
-
       
      options loop max_loop=42

     

       
9
       
9
       
+
       
      options tcp_hybla rtt0=42

     

       
10
       
10
       
 
       
    '';

     

       
11
       
11
       
 
       
  };

     

       
12
       
12
       
 
       


     

       
13
       
13
       
 
       
  testScript = ''

     

       
14
       
14
       
 
       
    machine.wait_for_unit("initrd.target")

     

       
15
       
15
       
-
       
    max_loop = machine.succeed("cat /sys/module/loop/parameters/max_loop")

     

       
16
       
16
       
-
       
    assert int(max_loop) == 42, "Parameter should be respected for initrd kernel modules"

     

       
15
       
15
       
+
       
    rtt = machine.succeed("cat /sys/module/tcp_hybla/parameters/rtt0")

     

       
16
       
16
       
+
       
    assert int(rtt) == 42, "Parameter should be respected for initrd kernel modules"

     

       
17
       
17
       
 
       


     

       
18
       
18
       
 
       
    # Make sure it sticks in stage 2

     

       
19
       
19
       
 
       
    machine.switch_root()

     

       
20
       
20
       
 
       
    machine.wait_for_unit("multi-user.target")

     

       
21
       
21
       
-
       
    max_loop = machine.succeed("cat /sys/module/loop/parameters/max_loop")

     

       
22
       
22
       
-
       
    assert int(max_loop) == 42, "Parameter should be respected for initrd kernel modules"

     

       
21
       
21
       
+
       
    rtt = machine.succeed("cat /sys/module/tcp_hybla/parameters/rtt0")

     

       
22
       
22
       
+
       
    assert int(rtt) == 42, "Parameter should be respected for initrd kernel modules"

     

       
23
       
23
       
 
       
  '';

     

       
24
       
24
       
 
       
})