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; }; }; in { name = "nfsv4-with-kerberos"; nodes = { client = { lib, ... }: { inherit krb5 users; 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; 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}" ''; })