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nixpkgs/nixos/tests/networking.nix
Michele Guerini Rocco 19d715c573
Merge pull request #107382 from rnhmjoj/no-udev-settle 
nixos/{networkd,dhcpcd}: remove udev-settle hack
2021-02-20 20:49:19 +01:00

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{ system ? builtins.currentSystem
, config ? {}
, pkgs ? import ../.. { inherit system config; }
# bool: whether to use networkd in the tests
, networkd }:
with import ../lib/testing-python.nix { inherit system pkgs; };
with pkgs.lib;
let
qemu-flags = import ../lib/qemu-flags.nix { inherit pkgs; };
router = { config, pkgs, lib, ... }:
with pkgs.lib;
let
vlanIfs = range 1 (length config.virtualisation.vlans);
in {
environment.systemPackages = [ pkgs.iptables ]; # to debug firewall rules
virtualisation.vlans = [ 1 2 3 ];
boot.kernel.sysctl."net.ipv6.conf.all.forwarding" = true;
networking = {
useDHCP = false;
useNetworkd = networkd;
firewall.checkReversePath = true;
firewall.allowedUDPPorts = [ 547 ];
interfaces = mkOverride 0 (listToAttrs (forEach vlanIfs (n:
nameValuePair "eth${toString n}" {
ipv4.addresses = [ { address = "192.168.${toString n}.1"; prefixLength = 24; } ];
ipv6.addresses = [ { address = "fd00:1234:5678:${toString n}::1"; prefixLength = 64; } ];
})));
};
services.dhcpd4 = {
enable = true;
interfaces = map (n: "eth${toString n}") vlanIfs;
extraConfig = flip concatMapStrings vlanIfs (n: ''
subnet 192.168.${toString n}.0 netmask 255.255.255.0 {
option routers 192.168.${toString n}.1;
range 192.168.${toString n}.3 192.168.${toString n}.254;
}
'')
;
machines = flip map vlanIfs (vlan:
{
hostName = "client${toString vlan}";
ethernetAddress = qemu-flags.qemuNicMac vlan 1;
ipAddress = "192.168.${toString vlan}.2";
}
);
};
services.radvd = {
enable = true;
config = flip concatMapStrings vlanIfs (n: ''
interface eth${toString n} {
AdvSendAdvert on;
AdvManagedFlag on;
AdvOtherConfigFlag on;
prefix fd00:1234:5678:${toString n}::/64 {
AdvAutonomous off;
};
};
'');
};
services.dhcpd6 = {
enable = true;
interfaces = map (n: "eth${toString n}") vlanIfs;
extraConfig = ''
authoritative;
'' + flip concatMapStrings vlanIfs (n: ''
subnet6 fd00:1234:5678:${toString n}::/64 {
range6 fd00:1234:5678:${toString n}::2 fd00:1234:5678:${toString n}::2;
}
'');
};
};
testCases = {
loopback = {
name = "Loopback";
machine.networking.useDHCP = false;
machine.networking.useNetworkd = networkd;
testScript = ''
start_all()
machine.wait_for_unit("network.target")
loopback_addresses = machine.succeed("ip addr show lo")
assert "inet 127.0.0.1/8" in loopback_addresses
assert "inet6 ::1/128" in loopback_addresses
'';
};
static = {
name = "Static";
nodes.router = router;
nodes.client = { pkgs, ... }: with pkgs.lib; {
virtualisation.vlans = [ 1 2 ];
networking = {
useNetworkd = networkd;
useDHCP = false;
defaultGateway = "192.168.1.1";
interfaces.eth1.ipv4.addresses = mkOverride 0 [
{ address = "192.168.1.2"; prefixLength = 24; }
{ address = "192.168.1.3"; prefixLength = 32; }
{ address = "192.168.1.10"; prefixLength = 32; }
];
interfaces.eth2.ipv4.addresses = mkOverride 0 [
{ address = "192.168.2.2"; prefixLength = 24; }
];
};
};
testScript = { ... }:
''
start_all()
client.wait_for_unit("network.target")
router.wait_for_unit("network-online.target")
with subtest("Make sure dhcpcd is not started"):
client.fail("systemctl status dhcpcd.service")
with subtest("Test vlan 1"):
client.wait_until_succeeds("ping -c 1 192.168.1.1")
client.wait_until_succeeds("ping -c 1 192.168.1.2")
client.wait_until_succeeds("ping -c 1 192.168.1.3")
client.wait_until_succeeds("ping -c 1 192.168.1.10")
router.wait_until_succeeds("ping -c 1 192.168.1.1")
router.wait_until_succeeds("ping -c 1 192.168.1.2")
router.wait_until_succeeds("ping -c 1 192.168.1.3")
router.wait_until_succeeds("ping -c 1 192.168.1.10")
with subtest("Test vlan 2"):
client.wait_until_succeeds("ping -c 1 192.168.2.1")
client.wait_until_succeeds("ping -c 1 192.168.2.2")
router.wait_until_succeeds("ping -c 1 192.168.2.1")
router.wait_until_succeeds("ping -c 1 192.168.2.2")
with subtest("Test default gateway"):
router.wait_until_succeeds("ping -c 1 192.168.3.1")
client.wait_until_succeeds("ping -c 1 192.168.3.1")
'';
};
dhcpSimple = {
name = "SimpleDHCP";
nodes.router = router;
nodes.client = { pkgs, ... }: with pkgs.lib; {
virtualisation.vlans = [ 1 2 ];
networking = {
useNetworkd = networkd;
useDHCP = false;
interfaces.eth1 = {
ipv4.addresses = mkOverride 0 [ ];
ipv6.addresses = mkOverride 0 [ ];
useDHCP = true;
};
interfaces.eth2 = {
ipv4.addresses = mkOverride 0 [ ];
ipv6.addresses = mkOverride 0 [ ];
useDHCP = true;
};
};
};
testScript = { ... }:
''
start_all()
client.wait_for_unit("network.target")
router.wait_for_unit("network-online.target")
with subtest("Wait until we have an ip address on each interface"):
client.wait_until_succeeds("ip addr show dev eth1 | grep -q '192.168.1'")
client.wait_until_succeeds("ip addr show dev eth1 | grep -q 'fd00:1234:5678:1:'")
client.wait_until_succeeds("ip addr show dev eth2 | grep -q '192.168.2'")
client.wait_until_succeeds("ip addr show dev eth2 | grep -q 'fd00:1234:5678:2:'")
with subtest("Test vlan 1"):
client.wait_until_succeeds("ping -c 1 192.168.1.1")
client.wait_until_succeeds("ping -c 1 192.168.1.2")
client.wait_until_succeeds("ping -c 1 fd00:1234:5678:1::1")
client.wait_until_succeeds("ping -c 1 fd00:1234:5678:1::2")
router.wait_until_succeeds("ping -c 1 192.168.1.1")
router.wait_until_succeeds("ping -c 1 192.168.1.2")
router.wait_until_succeeds("ping -c 1 fd00:1234:5678:1::1")
router.wait_until_succeeds("ping -c 1 fd00:1234:5678:1::2")
with subtest("Test vlan 2"):
client.wait_until_succeeds("ping -c 1 192.168.2.1")
client.wait_until_succeeds("ping -c 1 192.168.2.2")
client.wait_until_succeeds("ping -c 1 fd00:1234:5678:2::1")
client.wait_until_succeeds("ping -c 1 fd00:1234:5678:2::2")
router.wait_until_succeeds("ping -c 1 192.168.2.1")
router.wait_until_succeeds("ping -c 1 192.168.2.2")
router.wait_until_succeeds("ping -c 1 fd00:1234:5678:2::1")
router.wait_until_succeeds("ping -c 1 fd00:1234:5678:2::2")
'';
};
dhcpOneIf = {
name = "OneInterfaceDHCP";
nodes.router = router;
nodes.client = { pkgs, ... }: with pkgs.lib; {
virtualisation.vlans = [ 1 2 ];
networking = {
useNetworkd = networkd;
useDHCP = false;
interfaces.eth1 = {
ipv4.addresses = mkOverride 0 [ ];
mtu = 1343;
useDHCP = true;
};
interfaces.eth2.ipv4.addresses = mkOverride 0 [ ];
};
};
testScript = { ... }:
''
start_all()
with subtest("Wait for networking to come up"):
client.wait_for_unit("network.target")
router.wait_for_unit("network.target")
with subtest("Wait until we have an ip address on each interface"):
client.wait_until_succeeds("ip addr show dev eth1 | grep -q '192.168.1'")
with subtest("ensure MTU is set"):
assert "mtu 1343" in client.succeed("ip link show dev eth1")
with subtest("Test vlan 1"):
client.wait_until_succeeds("ping -c 1 192.168.1.1")
client.wait_until_succeeds("ping -c 1 192.168.1.2")
router.wait_until_succeeds("ping -c 1 192.168.1.1")
router.wait_until_succeeds("ping -c 1 192.168.1.2")
with subtest("Test vlan 2"):
client.wait_until_succeeds("ping -c 1 192.168.2.1")
client.fail("ping -c 1 192.168.2.2")
router.wait_until_succeeds("ping -c 1 192.168.2.1")
router.fail("ping -c 1 192.168.2.2")
'';
};
bond = let
node = address: { pkgs, ... }: with pkgs.lib; {
virtualisation.vlans = [ 1 2 ];
networking = {
useNetworkd = networkd;
useDHCP = false;
bonds.bond = {
interfaces = [ "eth1" "eth2" ];
driverOptions.mode = "balance-rr";
};
interfaces.eth1.ipv4.addresses = mkOverride 0 [ ];
interfaces.eth2.ipv4.addresses = mkOverride 0 [ ];
interfaces.bond.ipv4.addresses = mkOverride 0
[ { inherit address; prefixLength = 30; } ];
};
};
in {
name = "Bond";
nodes.client1 = node "192.168.1.1";
nodes.client2 = node "192.168.1.2";
testScript = { ... }:
''
start_all()
with subtest("Wait for networking to come up"):
client1.wait_for_unit("network.target")
client2.wait_for_unit("network.target")
with subtest("Test bonding"):
client1.wait_until_succeeds("ping -c 2 192.168.1.1")
client1.wait_until_succeeds("ping -c 2 192.168.1.2")
client2.wait_until_succeeds("ping -c 2 192.168.1.1")
client2.wait_until_succeeds("ping -c 2 192.168.1.2")
'';
};
bridge = let
node = { address, vlan }: { pkgs, ... }: with pkgs.lib; {
virtualisation.vlans = [ vlan ];
networking = {
useNetworkd = networkd;
useDHCP = false;
interfaces.eth1.ipv4.addresses = mkOverride 0
[ { inherit address; prefixLength = 24; } ];
};
};
in {
name = "Bridge";
nodes.client1 = node { address = "192.168.1.2"; vlan = 1; };
nodes.client2 = node { address = "192.168.1.3"; vlan = 2; };
nodes.router = { pkgs, ... }: with pkgs.lib; {
virtualisation.vlans = [ 1 2 ];
networking = {
useNetworkd = networkd;
useDHCP = false;
bridges.bridge.interfaces = [ "eth1" "eth2" ];
interfaces.eth1.ipv4.addresses = mkOverride 0 [ ];
interfaces.eth2.ipv4.addresses = mkOverride 0 [ ];
interfaces.bridge.ipv4.addresses = mkOverride 0
[ { address = "192.168.1.1"; prefixLength = 24; } ];
};
};
testScript = { ... }:
''
start_all()
with subtest("Wait for networking to come up"):
for machine in client1, client2, router:
machine.wait_for_unit("network.target")
with subtest("Test bridging"):
client1.wait_until_succeeds("ping -c 1 192.168.1.1")
client1.wait_until_succeeds("ping -c 1 192.168.1.2")
client1.wait_until_succeeds("ping -c 1 192.168.1.3")
client2.wait_until_succeeds("ping -c 1 192.168.1.1")
client2.wait_until_succeeds("ping -c 1 192.168.1.2")
client2.wait_until_succeeds("ping -c 1 192.168.1.3")
router.wait_until_succeeds("ping -c 1 192.168.1.1")
router.wait_until_succeeds("ping -c 1 192.168.1.2")
router.wait_until_succeeds("ping -c 1 192.168.1.3")
'';
};
macvlan = {
name = "MACVLAN";
nodes.router = router;
nodes.client = { pkgs, ... }: with pkgs.lib; {
environment.systemPackages = [ pkgs.iptables ]; # to debug firewall rules
virtualisation.vlans = [ 1 ];
networking = {
useNetworkd = networkd;
useDHCP = false;
firewall.logReversePathDrops = true; # to debug firewall rules
# reverse path filtering rules for the macvlan interface seem
# to be incorrect, causing the test to fail. Disable temporarily.
firewall.checkReversePath = false;
macvlans.macvlan.interface = "eth1";
interfaces.eth1 = {
ipv4.addresses = mkOverride 0 [ ];
useDHCP = true;
};
interfaces.macvlan = {
useDHCP = true;
};
};
};
testScript = { ... }:
''
start_all()
with subtest("Wait for networking to come up"):
client.wait_for_unit("network.target")
router.wait_for_unit("network.target")
with subtest("Wait until we have an ip address on each interface"):
client.wait_until_succeeds("ip addr show dev eth1 | grep -q '192.168.1'")
client.wait_until_succeeds("ip addr show dev macvlan | grep -q '192.168.1'")
with subtest("Print lots of diagnostic information"):
router.log("**********************************************")
router.succeed("ip addr >&2")
router.succeed("ip route >&2")
router.execute("iptables-save >&2")
client.log("==============================================")
client.succeed("ip addr >&2")
client.succeed("ip route >&2")
client.execute("iptables-save >&2")
client.log("##############################################")
with subtest("Test macvlan creates routable ips"):
client.wait_until_succeeds("ping -c 1 192.168.1.1")
client.wait_until_succeeds("ping -c 1 192.168.1.2")
client.wait_until_succeeds("ping -c 1 192.168.1.3")
router.wait_until_succeeds("ping -c 1 192.168.1.1")
router.wait_until_succeeds("ping -c 1 192.168.1.2")
router.wait_until_succeeds("ping -c 1 192.168.1.3")
'';
};
sit = let
node = { address4, remote, address6 }: { pkgs, ... }: with pkgs.lib; {
virtualisation.vlans = [ 1 ];
networking = {
useNetworkd = networkd;
firewall.enable = false;
useDHCP = false;
sits.sit = {
inherit remote;
local = address4;
dev = "eth1";
};
interfaces.eth1.ipv4.addresses = mkOverride 0
[ { address = address4; prefixLength = 24; } ];
interfaces.sit.ipv6.addresses = mkOverride 0
[ { address = address6; prefixLength = 64; } ];
};
};
in {
name = "Sit";
nodes.client1 = node { address4 = "192.168.1.1"; remote = "192.168.1.2"; address6 = "fc00::1"; };
nodes.client2 = node { address4 = "192.168.1.2"; remote = "192.168.1.1"; address6 = "fc00::2"; };
testScript = { ... }:
''
start_all()
with subtest("Wait for networking to be configured"):
client1.wait_for_unit("network.target")
client2.wait_for_unit("network.target")
# Print diagnostic information
client1.succeed("ip addr >&2")
client2.succeed("ip addr >&2")
with subtest("Test ipv6"):
client1.wait_until_succeeds("ping -c 1 fc00::1")
client1.wait_until_succeeds("ping -c 1 fc00::2")
client2.wait_until_succeeds("ping -c 1 fc00::1")
client2.wait_until_succeeds("ping -c 1 fc00::2")
'';
};
vlan = let
node = address: { pkgs, ... }: with pkgs.lib; {
#virtualisation.vlans = [ 1 ];
networking = {
useNetworkd = networkd;
useDHCP = false;
vlans.vlan = {
id = 1;
interface = "eth0";
};
interfaces.eth0.ipv4.addresses = mkOverride 0 [ ];
interfaces.eth1.ipv4.addresses = mkOverride 0 [ ];
interfaces.vlan.ipv4.addresses = mkOverride 0
[ { inherit address; prefixLength = 24; } ];
};
};
in {
name = "vlan";
nodes.client1 = node "192.168.1.1";
nodes.client2 = node "192.168.1.2";
testScript = { ... }:
''
start_all()
with subtest("Wait for networking to be configured"):
client1.wait_for_unit("network.target")
client2.wait_for_unit("network.target")
with subtest("Test vlan is setup"):
client1.succeed("ip addr show dev vlan >&2")
client2.succeed("ip addr show dev vlan >&2")
'';
};
virtual = {
name = "Virtual";
machine = {
networking.useNetworkd = networkd;
networking.useDHCP = false;
networking.interfaces.tap0 = {
ipv4.addresses = [ { address = "192.168.1.1"; prefixLength = 24; } ];
ipv6.addresses = [ { address = "2001:1470:fffd:2096::"; prefixLength = 64; } ];
virtual = true;
mtu = 1342;
macAddress = "02:de:ad:be:ef:01";
};
networking.interfaces.tun0 = {
ipv4.addresses = [ { address = "192.168.1.2"; prefixLength = 24; } ];
ipv6.addresses = [ { address = "2001:1470:fffd:2097::"; prefixLength = 64; } ];
virtual = true;
mtu = 1343;
};
};
testScript = ''
targetList = """
tap0: tap persist user 0
tun0: tun persist user 0
""".strip()
with subtest("Wait for networking to come up"):
machine.start()
machine.wait_for_unit("network.target")
with subtest("Test interfaces set up"):
list = machine.succeed("ip tuntap list | sort").strip()
assert (
list == targetList
), """
The list of virtual interfaces does not match the expected one:
Result:
{}
Expected:
{}
""".format(
list, targetList
)
with subtest("Test MTU and MAC Address are configured"):
machine.wait_until_succeeds("ip link show dev tap0 | grep 'mtu 1342'")
machine.wait_until_succeeds("ip link show dev tun0 | grep 'mtu 1343'")
assert "02:de:ad:be:ef:01" in machine.succeed("ip link show dev tap0")
'' # network-addresses-* only exist in scripted networking
+ optionalString (!networkd) ''
with subtest("Test interfaces clean up"):
machine.succeed("systemctl stop network-addresses-tap0")
machine.sleep(10)
machine.succeed("systemctl stop network-addresses-tun0")
machine.sleep(10)
residue = machine.succeed("ip tuntap list")
assert (
residue is ""
), "Some virtual interface has not been properly cleaned:\n{}".format(residue)
'';
};
privacy = {
name = "Privacy";
nodes.router = { ... }: {
virtualisation.vlans = [ 1 ];
boot.kernel.sysctl."net.ipv6.conf.all.forwarding" = true;
networking = {
useNetworkd = networkd;
useDHCP = false;
interfaces.eth1.ipv6.addresses = singleton {
address = "fd00:1234:5678:1::1";
prefixLength = 64;
};
};
services.radvd = {
enable = true;
config = ''
interface eth1 {
AdvSendAdvert on;
AdvManagedFlag on;
AdvOtherConfigFlag on;
prefix fd00:1234:5678:1::/64 {
AdvAutonomous on;
AdvOnLink on;
};
};
'';
};
};
nodes.client_with_privacy = { pkgs, ... }: with pkgs.lib; {
virtualisation.vlans = [ 1 ];
networking = {
useNetworkd = networkd;
useDHCP = false;
interfaces.eth1 = {
tempAddress = "default";
ipv4.addresses = mkOverride 0 [ ];
ipv6.addresses = mkOverride 0 [ ];
useDHCP = true;
};
};
};
nodes.client = { pkgs, ... }: with pkgs.lib; {
virtualisation.vlans = [ 1 ];
networking = {
useNetworkd = networkd;
useDHCP = false;
interfaces.eth1 = {
tempAddress = "enabled";
ipv4.addresses = mkOverride 0 [ ];
ipv6.addresses = mkOverride 0 [ ];
useDHCP = true;
};
};
};
testScript = { ... }:
''
start_all()
client.wait_for_unit("network.target")
client_with_privacy.wait_for_unit("network.target")
router.wait_for_unit("network-online.target")
with subtest("Wait until we have an ip address"):
client_with_privacy.wait_until_succeeds(
"ip addr show dev eth1 | grep -q 'fd00:1234:5678:1:'"
)
client.wait_until_succeeds("ip addr show dev eth1 | grep -q 'fd00:1234:5678:1:'")
with subtest("Test vlan 1"):
client_with_privacy.wait_until_succeeds("ping -c 1 fd00:1234:5678:1::1")
client.wait_until_succeeds("ping -c 1 fd00:1234:5678:1::1")
with subtest("Test address used is temporary"):
client_with_privacy.wait_until_succeeds(
"! ip route get fd00:1234:5678:1::1 | grep -q ':[a-f0-9]*ff:fe[a-f0-9]*:'"
)
with subtest("Test address used is EUI-64"):
client.wait_until_succeeds(
"ip route get fd00:1234:5678:1::1 | grep -q ':[a-f0-9]*ff:fe[a-f0-9]*:'"
)
'';
};
routes = {
name = "routes";
machine = {
networking.useDHCP = false;
networking.interfaces.eth0 = {
ipv4.addresses = [ { address = "192.168.1.2"; prefixLength = 24; } ];
ipv6.addresses = [ { address = "2001:1470:fffd:2097::"; prefixLength = 64; } ];
ipv6.routes = [
{ address = "fdfd:b3f0::"; prefixLength = 48; }
{ address = "2001:1470:fffd:2098::"; prefixLength = 64; via = "fdfd:b3f0::1"; }
];
ipv4.routes = [
{ address = "10.0.0.0"; prefixLength = 16; options = { mtu = "1500"; }; }
{ address = "192.168.2.0"; prefixLength = 24; via = "192.168.1.1"; }
];
};
virtualisation.vlans = [ ];
};
testScript = ''
targetIPv4Table = [
"10.0.0.0/16 proto static scope link mtu 1500",
"192.168.1.0/24 proto kernel scope link src 192.168.1.2",
"192.168.2.0/24 via 192.168.1.1 proto static",
]
targetIPv6Table = [
"2001:1470:fffd:2097::/64 proto kernel metric 256 pref medium",
"2001:1470:fffd:2098::/64 via fdfd:b3f0::1 proto static metric 1024 pref medium",
"fdfd:b3f0::/48 proto static metric 1024 pref medium",
]
machine.start()
machine.wait_for_unit("network.target")
with subtest("test routing tables"):
ipv4Table = machine.succeed("ip -4 route list dev eth0 | head -n3").strip()
ipv6Table = machine.succeed("ip -6 route list dev eth0 | head -n3").strip()
assert [
l.strip() for l in ipv4Table.splitlines()
] == targetIPv4Table, """
The IPv4 routing table does not match the expected one:
Result:
{}
Expected:
{}
""".format(
ipv4Table, targetIPv4Table
)
assert [
l.strip() for l in ipv6Table.splitlines()
] == targetIPv6Table, """
The IPv6 routing table does not match the expected one:
Result:
{}
Expected:
{}
""".format(
ipv6Table, targetIPv6Table
)
with subtest("test clean-up of the tables"):
machine.succeed("systemctl stop network-addresses-eth0")
ipv4Residue = machine.succeed("ip -4 route list dev eth0 | head -n-3").strip()
ipv6Residue = machine.succeed("ip -6 route list dev eth0 | head -n-3").strip()
assert (
ipv4Residue is ""
), "The IPv4 routing table has not been properly cleaned:\n{}".format(ipv4Residue)
assert (
ipv6Residue is ""
), "The IPv6 routing table has not been properly cleaned:\n{}".format(ipv6Residue)
'';
};
rename = {
name = "RenameInterface";
machine = { pkgs, ... }: {
virtualisation.vlans = [ 1 ];
networking = {
useNetworkd = networkd;
useDHCP = false;
};
} //
(if networkd
then { systemd.network.links."10-custom_name" = {
matchConfig.MACAddress = "52:54:00:12:01:01";
linkConfig.Name = "custom_name";
};
}
else { services.udev.initrdRules = ''
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="52:54:00:12:01:01", KERNEL=="eth*", NAME="custom_name"
'';
});
testScript = ''
machine.succeed("udevadm settle")
print(machine.succeed("ip link show dev custom_name"))
'';
};
# even with disabled networkd, systemd.network.links should work
# (as it's handled by udev, not networkd)
link = {
name = "Link";
nodes.client = { pkgs, ... }: {
virtualisation.vlans = [ 1 ];
networking = {
useNetworkd = networkd;
useDHCP = false;
};
systemd.network.links."50-foo" = {
matchConfig = {
Name = "foo";
Driver = "dummy";
};
linkConfig.MTUBytes = "1442";
};
};
testScript = ''
print(client.succeed("ip l add name foo type dummy"))
print(client.succeed("stat /etc/systemd/network/50-foo.link"))
client.succeed("udevadm settle")
assert "mtu 1442" in client.succeed("ip l show dummy0")
'';
};
};
in mapAttrs (const (attrs: makeTest (attrs // {
name = "${attrs.name}-Networking-${if networkd then "Networkd" else "Scripted"}";
}))) testCases
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