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nixosTests.ipv6: port to python #74758

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Dec 9, 2019
Merged

nixosTests.ipv6: port to python #74758

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ead22d1
nixosTests.ipv6: port to python
mmilata Dec 1, 2019
6ebf84a
nixosTests.ipv6: fix waiting for address
mmilata Dec 8, 2019
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81 changes: 43 additions & 38 deletions nixos/tests/ipv6.nix
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
# Test of IPv6 functionality in NixOS, including whether router
# solicication/advertisement using radvd works.

import ./make-test.nix ({ pkgs, lib, ...} : {
import ./make-test-python.nix ({ pkgs, lib, ...} : {
name = "ipv6";
meta = with pkgs.stdenv.lib.maintainers; {
maintainers = [ eelco ];
Expand Down Expand Up @@ -35,51 +35,56 @@ import ./make-test.nix ({ pkgs, lib, ...} : {

testScript =
''
import re

# Start the router first so that it respond to router solicitations.
$router->waitForUnit("radvd");
router.wait_for_unit("radvd")

startAll;
start_all()

$client->waitForUnit("network.target");
$server->waitForUnit("network.target");
$server->waitForUnit("httpd.service");
client.wait_for_unit("network.target")
server.wait_for_unit("network.target")
server.wait_for_unit("httpd.service")

# Wait until the given interface has a non-tentative address of
# the desired scope (i.e. has completed Duplicate Address
# Detection).
sub waitForAddress {
my ($machine, $iface, $scope) = @_;
$machine->waitUntilSucceeds("[ `ip -o -6 addr show dev $iface scope $scope | grep -v tentative | wc -l` -ge 1 ]");
my $ip = (split /[ \/]+/, $machine->succeed("ip -o -6 addr show dev $iface scope $scope"))[3];
$machine->log("$scope address on $iface is $ip");
return $ip;
}

subtest "loopback address", sub {
$client->succeed("ping -c 1 ::1 >&2");
$client->fail("ping -c 1 ::2 >&2");
};

subtest "local link addressing", sub {
my $clientIp = waitForAddress $client, "eth1", "link";
my $serverIp = waitForAddress $server, "eth1", "link";
$client->succeed("ping -c 1 $clientIp%eth1 >&2");
$client->succeed("ping -c 1 $serverIp%eth1 >&2");
};

subtest "global addressing", sub {
my $clientIp = waitForAddress $client, "eth1", "global";
my $serverIp = waitForAddress $server, "eth1", "global";
$client->succeed("ping -c 1 $clientIp >&2");
$client->succeed("ping -c 1 $serverIp >&2");
$client->succeed("curl --fail -g http://[$serverIp]");
$client->fail("curl --fail -g http://[$clientIp]");
};
subtest "privacy extensions", sub {
my $ip = waitForAddress $client, "eth1", "global temporary";
def wait_for_address(machine, iface, scope, temporary=False):
temporary_flag = "temporary" if temporary else "-temporary"
cmd = f"ip -o -6 addr show dev {iface} scope {scope} -tentative {temporary_flag}"

machine.wait_until_succeeds(f"[ `{cmd} | wc -l` -eq 1 ]")
output = machine.succeed(cmd)
ip = re.search(r"inet6 ([0-9a-f:]{2,})/", output).group(1)

if temporary:
scope = scope + " temporary"
machine.log(f"{scope} address on {iface} is {ip}")
return ip


with subtest("Loopback address can be pinged"):
client.succeed("ping -c 1 ::1 >&2")
client.fail("ping -c 1 ::2 >&2")

with subtest("Local link addresses can be obtained and pinged"):
client_ip = wait_for_address(client, "eth1", "link")
server_ip = wait_for_address(server, "eth1", "link")
client.succeed(f"ping -c 1 {client_ip}%eth1 >&2")
client.succeed(f"ping -c 1 {server_ip}%eth1 >&2")

with subtest("Global addresses can be obtained, pinged, and reached via http"):
client_ip = wait_for_address(client, "eth1", "global")
server_ip = wait_for_address(server, "eth1", "global")
client.succeed(f"ping -c 1 {client_ip} >&2")
client.succeed(f"ping -c 1 {server_ip} >&2")
client.succeed(f"curl --fail -g http://[{server_ip}]")
client.fail(f"curl --fail -g http://[{client_ip}]")

with subtest("Privacy extensions: Global temporary address can be obtained and pinged"):
ip = wait_for_address(client, "eth1", "global", temporary=True)
# Default route should have "src <temporary address>" in it
$client->succeed("ip r g ::2 | grep $ip");
};
client.succeed(f"ip r g ::2 | grep {ip}")

# TODO: test reachability of a machine on another network.
'';
Expand Down