You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
103 lines
4.2 KiB
103 lines
4.2 KiB
import ./make-test-python.nix ({ pkgs, ... }:
|
|
let
|
|
listenPort = 30123;
|
|
testString = "It works!";
|
|
mkCreateSmallFileService = { path, loop ? false }: {
|
|
script = ''
|
|
${pkgs.coreutils}/bin/dd if=/dev/zero of=${path} bs=1K count=100
|
|
${pkgs.lib.optionalString loop
|
|
"${pkgs.util-linux}/bin/losetup --find ${path}"}
|
|
'';
|
|
serviceConfig = {
|
|
Type = "oneshot";
|
|
};
|
|
wantedBy = [ "multi-user.target" ];
|
|
before = [ "nbd-server.service" ];
|
|
};
|
|
in
|
|
{
|
|
name = "nbd";
|
|
|
|
nodes = {
|
|
server = { config, pkgs, ... }: {
|
|
# Create some small files of zeros to use as the ndb disks
|
|
## `vault-pub.disk` is accessible from any IP
|
|
systemd.services.create-pub-file =
|
|
mkCreateSmallFileService { path = "/vault-pub.disk"; };
|
|
## `vault-priv.disk` is accessible only from localhost.
|
|
## It's also a loopback device to test exporting /dev/...
|
|
systemd.services.create-priv-file =
|
|
mkCreateSmallFileService { path = "/vault-priv.disk"; loop = true; };
|
|
## `aaa.disk` is just here because "[aaa]" sorts before
|
|
## "[generic]" lexicographically, and nbd-server breaks if
|
|
## "[generic]" isn't the first section.
|
|
systemd.services.create-aaa-file =
|
|
mkCreateSmallFileService { path = "/aaa.disk"; };
|
|
|
|
# Needed only for nbd-client used in the tests.
|
|
environment.systemPackages = [ pkgs.nbd ];
|
|
|
|
# Open the nbd port in the firewall
|
|
networking.firewall.allowedTCPPorts = [ listenPort ];
|
|
|
|
# Run the nbd server and expose the small file created above
|
|
services.nbd.server = {
|
|
enable = true;
|
|
exports = {
|
|
aaa = {
|
|
path = "/aaa.disk";
|
|
};
|
|
vault-pub = {
|
|
path = "/vault-pub.disk";
|
|
};
|
|
vault-priv = {
|
|
path = "/dev/loop0";
|
|
allowAddresses = [ "127.0.0.1" "::1" ];
|
|
};
|
|
};
|
|
listenAddress = "0.0.0.0";
|
|
listenPort = listenPort;
|
|
};
|
|
};
|
|
|
|
client = { config, pkgs, ... }: {
|
|
programs.nbd.enable = true;
|
|
};
|
|
};
|
|
|
|
testScript = ''
|
|
testString = "${testString}"
|
|
|
|
start_all()
|
|
server.wait_for_open_port(${toString listenPort})
|
|
|
|
# Client: Connect to the server, write a small string to the nbd disk, and cleanly disconnect
|
|
client.succeed("nbd-client server ${toString listenPort} /dev/nbd0 -name vault-pub -persist")
|
|
client.succeed(f"echo '{testString}' | dd of=/dev/nbd0 conv=notrunc")
|
|
client.succeed("nbd-client -d /dev/nbd0")
|
|
|
|
# Server: Check that the string written by the client is indeed in the file
|
|
foundString = server.succeed(f"dd status=none if=/vault-pub.disk count={len(testString)}")[:len(testString)]
|
|
if foundString != testString:
|
|
raise Exception(f"Read the wrong string from nbd disk. Expected: '{testString}'. Found: '{foundString}'")
|
|
|
|
# Client: Fail to connect to the private disk
|
|
client.fail("nbd-client server ${toString listenPort} /dev/nbd0 -name vault-priv -persist")
|
|
|
|
# Server: Successfully connect to the private disk
|
|
server.succeed("nbd-client localhost ${toString listenPort} /dev/nbd0 -name vault-priv -persist")
|
|
server.succeed(f"echo '{testString}' | dd of=/dev/nbd0 conv=notrunc")
|
|
foundString = server.succeed(f"dd status=none if=/dev/loop0 count={len(testString)}")[:len(testString)]
|
|
if foundString != testString:
|
|
raise Exception(f"Read the wrong string from nbd disk. Expected: '{testString}'. Found: '{foundString}'")
|
|
server.succeed("nbd-client -d /dev/nbd0")
|
|
|
|
# Server: Successfully connect to the aaa disk
|
|
server.succeed("nbd-client localhost ${toString listenPort} /dev/nbd0 -name aaa -persist")
|
|
server.succeed(f"echo '{testString}' | dd of=/dev/nbd0 conv=notrunc")
|
|
foundString = server.succeed(f"dd status=none if=/aaa.disk count={len(testString)}")[:len(testString)]
|
|
if foundString != testString:
|
|
raise Exception(f"Read the wrong string from nbd disk. Expected: '{testString}'. Found: '{foundString}'")
|
|
server.succeed("nbd-client -d /dev/nbd0")
|
|
'';
|
|
})
|
|
|