133 lines
3.8 KiB
Nix
133 lines
3.8 KiB
Nix
import ../make-test-python.nix ({ pkgs, lib, ... }:
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with lib;
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let
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krb5 =
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{ enable = true;
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domain_realm."nfs.test" = "NFS.TEST";
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libdefaults.default_realm = "NFS.TEST";
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realms."NFS.TEST" =
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{ admin_server = "server.nfs.test";
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kdc = "server.nfs.test";
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};
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};
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hosts =
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''
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192.168.1.1 client.nfs.test
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192.168.1.2 server.nfs.test
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'';
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users = {
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users.alice = {
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isNormalUser = true;
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name = "alice";
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uid = 1000;
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};
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};
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in
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{
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name = "nfsv4-with-kerberos";
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nodes = {
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client = { lib, ... }:
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{ inherit krb5 users;
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networking.extraHosts = hosts;
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networking.domain = "nfs.test";
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networking.hostName = "client";
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fileSystems = lib.mkVMOverride
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{ "/data" = {
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device = "server.nfs.test:/";
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fsType = "nfs";
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options = [ "nfsvers=4" "sec=krb5p" "noauto" ];
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};
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};
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};
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server = { lib, ...}:
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{ inherit krb5 users;
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networking.extraHosts = hosts;
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networking.domain = "nfs.test";
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networking.hostName = "server";
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networking.firewall.allowedTCPPorts = [
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111 # rpc
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2049 # nfs
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88 # kerberos
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749 # kerberos admin
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];
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services.kerberos_server.enable = true;
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services.kerberos_server.realms =
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{ "NFS.TEST".acl =
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[ { access = "all"; principal = "admin/admin"; } ];
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};
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services.nfs.server.enable = true;
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services.nfs.server.createMountPoints = true;
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services.nfs.server.exports =
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''
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/data *(rw,no_root_squash,fsid=0,sec=krb5p)
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'';
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};
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};
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testScript =
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''
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server.succeed("mkdir -p /data/alice")
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server.succeed("chown alice:users /data/alice")
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# set up kerberos database
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server.succeed(
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"kdb5_util create -s -r NFS.TEST -P master_key",
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"systemctl restart kadmind.service kdc.service",
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)
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server.wait_for_unit(f"kadmind.service")
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server.wait_for_unit(f"kdc.service")
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# create principals
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server.succeed(
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"kadmin.local add_principal -randkey nfs/server.nfs.test",
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"kadmin.local add_principal -randkey nfs/client.nfs.test",
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"kadmin.local add_principal -pw admin_pw admin/admin",
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"kadmin.local add_principal -pw alice_pw alice",
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)
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# add principals to server keytab
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server.succeed("kadmin.local ktadd nfs/server.nfs.test")
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server.succeed("systemctl start rpc-gssd.service rpc-svcgssd.service")
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server.wait_for_unit(f"rpc-gssd.service")
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server.wait_for_unit(f"rpc-svcgssd.service")
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client.wait_for_unit("network-online.target")
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# add principals to client keytab
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client.succeed("echo admin_pw | kadmin -p admin/admin ktadd nfs/client.nfs.test")
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client.succeed("systemctl start rpc-gssd.service")
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client.wait_for_unit("rpc-gssd.service")
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with subtest("nfs share mounts"):
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client.succeed("systemctl restart data.mount")
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client.wait_for_unit("data.mount")
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with subtest("permissions on nfs share are enforced"):
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client.fail("su alice -c 'ls /data'")
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client.succeed("su alice -c 'echo alice_pw | kinit'")
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client.succeed("su alice -c 'ls /data'")
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client.fail("su alice -c 'echo bla >> /data/foo'")
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client.succeed("su alice -c 'echo bla >> /data/alice/foo'")
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server.succeed("test -e /data/alice/foo")
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with subtest("uids/gids are mapped correctly on nfs share"):
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ids = client.succeed("stat -c '%U %G' /data/alice").split()
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expected = ["alice", "users"]
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assert ids == expected, f"ids incorrect: got {ids} expected {expected}"
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'';
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})
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