--- /dev/null
+#!/usr/bin/env python3
+# Unix SMB/CIFS implementation.
+# Copyright (C) Stefan Metzmacher 2020
+# Copyright (C) 2021 Catalyst.Net Ltd
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+import sys
+import os
+
+from ldb import SCOPE_SUBTREE
+from samba.dcerpc import security
+from samba.ndr import ndr_unpack
+from samba.samba3 import libsmb_samba_internal as libsmb
+from samba.samba3 import param as s3param
+
+from samba.tests.krb5.kdc_base_test import KDCBaseTest
+
+sys.path.insert(0, "bin/python")
+os.environ["PYTHONUNBUFFERED"] = "1"
+
+global_asn1_print = False
+global_hexdump = False
+
+
+class SmbTests(KDCBaseTest):
+ """Test for SMB authentication using Kerberos credentials stored in a
+ credentials cache file.
+ """
+
+ def test_smb(self):
+ # Create a user account and a machine account, along with a Kerberos
+ # credentials cache file where the service ticket authenticating the
+ # user are stored.
+
+ user_name = "smbusr"
+ mach_name = self.dns_host_name
+ service = "cifs"
+ share = "tmp"
+
+ # Create the user account.
+ (user_credentials, _) = self.create_account(user_name)
+
+ # Talk to the KDC to obtain the service ticket, which gets placed into
+ # the cache. The machine account name has to match the name in the
+ # ticket, to ensure that the krbtgt ticket doesn't also need to be
+ # stored.
+ (creds, cachefile) = self.create_ccache_with_user(user_credentials,
+ mach_name,
+ service)
+
+ # Set the Kerberos 5 credentials cache environment variable. This is
+ # required because the codepath that gets run (gse_krb5) looks for it
+ # in here and not in the credentials object.
+ krb5_ccname = os.environ.get("KRB5CCNAME", "")
+ self.addCleanup(os.environ.__setitem__, "KRB5CCNAME", krb5_ccname)
+ os.environ["KRB5CCNAME"] = "FILE:" + cachefile.name
+
+ # Authenticate in-process to the machine account using the user's
+ # cached credentials.
+
+ # Retrieve the user account's SID.
+ ldb_res = self.ldb.search(scope=SCOPE_SUBTREE,
+ expression="(sAMAccountName=%s)" % user_name,
+ attrs=["objectSid"])
+ self.assertEqual(1, len(ldb_res))
+ sid = ndr_unpack(security.dom_sid, ldb_res[0]["objectSid"][0])
+
+ # Connect to a share and retrieve the user SID.
+ s3_lp = s3param.get_context()
+ s3_lp.load(self.lp.configfile)
+
+ min_protocol = s3_lp.get("client min protocol")
+ self.addCleanup(s3_lp.set, "client min protocol", min_protocol)
+ s3_lp.set("client min protocol", "NT1")
+
+ max_protocol = s3_lp.get("client max protocol")
+ self.addCleanup(s3_lp.set, "client max protocol", max_protocol)
+ s3_lp.set("client max protocol", "NT1")
+
+ conn = libsmb.Conn(mach_name, share, lp=s3_lp, creds=creds)
+
+ (uid, gid, gids, sids, guest) = conn.posix_whoami()
+
+ # Ensure that they match.
+ self.assertEqual(sid, sids[0])
+
+ # Remove the cached credentials file.
+ os.remove(cachefile.name)
+
+
+if __name__ == "__main__":
+ global_asn1_print = True
+ global_hexdump = True
+ import unittest
+ unittest.main()
git.samba.org / samba.git / commitdiff