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nixos/nfs: test nfs with kerberos authentication

nsd-state-dir
Kai Wohlfahrt 3 years ago
parent
commit
0dce66a6ec
  1. 4
      nixos/release-combined.nix
  2. 5
      nixos/tests/all-tests.nix
  3. 9
      nixos/tests/nfs/default.nix
  4. 140
      nixos/tests/nfs/kerberos.nix
  5. 2
      nixos/tests/nfs/simple.nix

4
nixos/release-combined.nix

@ -120,8 +120,8 @@ in rec {
(all nixos.tests.networking.scripted.macvlan)
(all nixos.tests.networking.scripted.sit)
(all nixos.tests.networking.scripted.vlan)
(all nixos.tests.nfs3)
(all nixos.tests.nfs4)
(all nixos.tests.nfs3.simple)
(all nixos.tests.nfs4.simple)
(all nixos.tests.openssh)
(all nixos.tests.php-pcre)
(all nixos.tests.predictable-interface-names.predictable)

5
nixos/tests/all-tests.nix

@ -189,8 +189,9 @@ in
networkingProxy = handleTest ./networking-proxy.nix {};
nextcloud = handleTest ./nextcloud {};
nexus = handleTest ./nexus.nix {};
nfs3 = handleTest ./nfs.nix { version = 3; };
nfs4 = handleTest ./nfs.nix { version = 4; };
# TODO: Test nfsv3 + Kerberos
nfs3 = handleTest ./nfs { version = 3; };
nfs4 = handleTest ./nfs { version = 4; };
nghttpx = handleTest ./nghttpx.nix {};
nginx = handleTest ./nginx.nix {};
nginx-sso = handleTest ./nginx-sso.nix {};

9
nixos/tests/nfs/default.nix

@ -0,0 +1,9 @@
{ version ? 4
, system ? builtins.currentSystem
, pkgs ? import ../../.. { inherit system; }
}: {
simple = import ./simple.nix { inherit version system pkgs; };
} // pkgs.lib.optionalAttrs (version == 4) {
# TODO: Test kerberos + nfsv3
kerberos = import ./kerberos.nix { inherit version system pkgs; };
}

140
nixos/tests/nfs/kerberos.nix

@ -0,0 +1,140 @@
import ../make-test-python.nix ({ pkgs, lib, ... }:
with lib;
let
krb5 =
{ enable = true;
domain_realm."nfs.test" = "NFS.TEST";
libdefaults.default_realm = "NFS.TEST";
realms."NFS.TEST" =
{ admin_server = "server.nfs.test";
kdc = "server.nfs.test";
};
};
hosts =
''
192.168.1.1 client.nfs.test
192.168.1.2 server.nfs.test
'';
users = {
users.alice = {
isNormalUser = true;
name = "alice";
uid = 1000;
};
};
environment = {
etc."request-key.conf".text = ''
create id_resolver * * ${pkgs.nfs-utils}/bin/nfsidmap -t 600 %k %d
'';
systemPackages = with pkgs; [ keyutils ];
};
in
{
name = "nfsv4-with-kerberos";
nodes = {
client = { lib, ... }:
{ inherit krb5 users environment;
networking.extraHosts = hosts;
networking.domain = "nfs.test";
networking.hostName = "client";
fileSystems = lib.mkVMOverride
{ "/data" = {
device = "server.nfs.test:/";
fsType = "nfs";
options = [ "nfsvers=4" "sec=krb5p" "noauto" ];
};
};
};
server = { lib, ...}:
{ inherit krb5 users environment;
networking.extraHosts = hosts;
networking.domain = "nfs.test";
networking.hostName = "server";
networking.firewall.allowedTCPPorts = [
111 # rpc
2049 # nfs
88 # kerberos
749 # kerberos admin
];
services.kerberos_server.enable = true;
services.kerberos_server.realms =
{ "NFS.TEST".acl =
[ { access = "all"; principal = "admin/admin"; } ];
};
services.nfs.server.enable = true;
services.nfs.server.createMountPoints = true;
services.nfs.server.exports =
''
/data *(rw,no_root_squash,fsid=0,sec=krb5p)
'';
};
};
testScript =
''
server.succeed("mkdir -p /data/alice")
server.succeed("chown alice:users /data/alice")
# set up kerberos database
server.succeed(
"kdb5_util create -s -r NFS.TEST -P master_key",
"systemctl restart kadmind.service kdc.service",
)
server.wait_for_unit(f"kadmind.service")
server.wait_for_unit(f"kdc.service")
# create principals
server.succeed(
"kadmin.local add_principal -randkey nfs/server.nfs.test",
"kadmin.local add_principal -randkey nfs/client.nfs.test",
"kadmin.local add_principal -pw admin_pw admin/admin",
"kadmin.local add_principal -pw alice_pw alice",
)
# add principals to server keytab
server.succeed("kadmin.local ktadd nfs/server.nfs.test")
server.succeed("systemctl start rpc-gssd.service rpc-svcgssd.service")
server.wait_for_unit(f"rpc-gssd.service")
server.wait_for_unit(f"rpc-svcgssd.service")
client.wait_for_unit("network-online.target")
# add principals to client keytab
client.succeed("echo admin_pw | kadmin -p admin/admin ktadd nfs/client.nfs.test")
client.succeed("systemctl start rpc-gssd.service")
client.wait_for_unit("rpc-gssd.service")
with subtest("nfs share mounts"):
client.succeed("systemctl restart data.mount")
client.wait_for_unit("data.mount")
with subtest("permissions on nfs share are enforced"):
client.fail("su alice -c 'ls /data'")
client.succeed("su alice -c 'echo alice_pw | kinit'")
client.succeed("su alice -c 'ls /data'")
client.fail("su alice -c 'echo bla >> /data/foo'")
client.succeed("su alice -c 'echo bla >> /data/alice/foo'")
server.succeed("test -e /data/alice/foo")
with subtest("uids/gids are mapped correctly on nfs share"):
ids = client.succeed("stat -c '%U %G' /data/alice").split()
expected = ["alice", "users"]
assert ids == expected, f"ids incorrect: got {ids} expected {expected}"
'';
})

2
nixos/tests/nfs.nix → nixos/tests/nfs/simple.nix

@ -1,4 +1,4 @@
import ./make-test-python.nix ({ pkgs, version ? 4, ... }:
import ../make-test-python.nix ({ pkgs, version ? 4, ... }:
let
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