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# Unix SMB/CIFS implementation.
# A test for the ntlm_auth tool
# Copyright (C) Kai Blin <kai@samba.org> 2008
# Copyright (C) Samuel Cabrero <scabrero@suse.de> 2018
#
# 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/>.
#
"""Test ntlm_auth
This test program will start ntlm_auth with the given command line switches and
see if it will get the expected results.
"""
import os
import samba
import subprocess
from samba.tests import BlackboxTestCase
class NTLMAuthTestCase(BlackboxTestCase):
def setUp(self):
super(NTLMAuthTestCase, self).setUp()
bindir = os.path.normpath(os.getenv("BINDIR", "./bin"))
self.ntlm_auth_path = os.path.join(bindir, 'ntlm_auth')
self.lp = samba.tests.env_loadparm()
self.winbind_separator = self.lp.get('winbind separator')
def readLine(self, text_stream):
buf = text_stream.readline()
newline = buf.find('\n')
if newline == -1:
raise Exception("Failed to read line")
return buf[:newline]
def writeLine(self, text_stream, buf):
text_stream.write(buf)
text_stream.write("\n")
def run_helper(self,
client_username=None,
client_password=None,
client_domain=None,
client_use_cached_creds=False,
server_username=None,
server_password=None,
server_domain=None,
client_helper="ntlmssp-client-1",
server_helper="squid-2.5-ntlmssp",
server_use_winbind=False,
require_membership=None,
target_hostname=None,
target_service=None):
self.assertTrue(os.access(self.ntlm_auth_path, os.X_OK))
if client_username is None:
raise Exception("client_username required")
# Client helper args
client_args = []
client_args.append(self.ntlm_auth_path)
client_args.append("--helper-protocol=%s" % client_helper)
client_args.append("--username=%s" % client_username)
if client_domain:
client_args.append("--domain=%s" % client_domain)
if client_use_cached_creds:
client_args.append("--use-cached-creds")
else:
if client_password is None:
raise Exception("client_password required")
client_args.append("--password=%s" % client_password)
if target_service:
client_args.append("--target-service=%s" % target_service)
if target_hostname:
client_args.append("--target-hostname=%s" % target_hostname)
client_args.append("--configfile=%s" % self.lp.configfile)
# Server helper args
server_args = []
server_args.append(self.ntlm_auth_path)
server_args.append("--helper-protocol=%s" % server_helper)
server_args.append("--configfile=%s" % self.lp.configfile)
if not server_use_winbind:
if server_username is None or server_password is None or server_domain is None:
raise Exception("Server credentials required if not using winbind")
server_args.append("--username=%s" % server_username)
server_args.append("--password=%s" % server_password)
server_args.append("--domain=%s" % server_domain)
if require_membership is not None:
raise Exception("Server must be using winbind for require-membership-of")
else:
if require_membership is not None:
server_args.append("--require-membership-of=%s" % require_membership)
# Run helpers
result = False
server_proc = subprocess.Popen(server_args, stdout=subprocess.PIPE, stdin=subprocess.PIPE, bufsize=0, universal_newlines=True)
client_proc = subprocess.Popen(client_args, stdout=subprocess.PIPE, stdin=subprocess.PIPE, bufsize=0, universal_newlines=True)
try:
if client_helper == "ntlmssp-client-1" and server_helper == "squid-2.5-ntlmssp":
self.writeLine(client_proc.stdin, "YR")
buf = self.readLine(client_proc.stdout)
self.assertTrue(buf.startswith("YR "))
self.writeLine(server_proc.stdin, buf)
buf = self.readLine(server_proc.stdout)
self.assertTrue(buf.startswith("TT "))
self.writeLine(client_proc.stdin, buf)
buf = self.readLine(client_proc.stdout)
self.assertTrue(buf.startswith("AF "))
# Client sends 'AF <base64 blob>' but server
# expects 'KK <base64 blob>'
buf = buf.replace("AF", "KK", 1)
self.writeLine(server_proc.stdin, buf)
buf = self.readLine(server_proc.stdout)
result = buf.startswith("AF ")
elif client_helper == "ntlmssp-client-1" and server_helper == "gss-spnego":
self.writeLine(client_proc.stdin, "YR")
buf = self.readLine(client_proc.stdout)
self.assertTrue(buf.startswith("YR "))
self.writeLine(server_proc.stdin, buf)
buf = self.readLine(server_proc.stdout)
self.assertTrue(buf.startswith("TT "))
self.writeLine(client_proc.stdin, buf)
buf = self.readLine(client_proc.stdout)
self.assertTrue(buf.startswith("AF "))
# Client sends 'AF <base64 blob>' but server expects 'KK <abse64 blob>'
buf = buf.replace("AF", "KK", 1)
self.writeLine(server_proc.stdin, buf)
buf = self.readLine(server_proc.stdout)
result = buf.startswith("AF * ")
elif client_helper == "gss-spnego-client" and server_helper == "gss-spnego":
self.writeLine(server_proc.stdin, "YR")
buf = self.readLine(server_proc.stdout)
while True:
if (buf.startswith("NA * ")):
result = False
break
self.assertTrue(buf.startswith("AF ") or buf.startswith("TT "))
self.writeLine(client_proc.stdin, buf)
buf = self.readLine(client_proc.stdout)
if buf.startswith("AF"):
result = True
break
self.assertTrue(buf.startswith("AF ") or buf.startswith("KK ") or buf.startswith("TT "))
self.writeLine(server_proc.stdin, buf)
buf = self.readLine(server_proc.stdout)
if buf.startswith("AF * "):
result = True
break
else:
self.fail("Helper protocols not handled")
if result is True and client_helper == "ntlmssp-client-1":
self.writeLine(client_proc.stdin, "GK")
buf = self.readLine(client_proc.stdout)
self.assertTrue(buf.startswith("GK "))
self.writeLine(client_proc.stdin, "GF")
buf = self.readLine(client_proc.stdout)
self.assertTrue(buf.startswith("GF "))
if result is True and server_helper == "squid-2.5-ntlmssp":
self.writeLine(server_proc.stdin, "GK")
buf = self.readLine(server_proc.stdout)
self.assertTrue(buf.startswith("GK "))
self.writeLine(server_proc.stdin, "GF")
buf = self.readLine(server_proc.stdout)
self.assertTrue(buf.startswith("GF "))
client_proc.stdin.close()
client_proc.wait()
self.assertEqual(client_proc.returncode, 0)
server_proc.stdin.close()
server_proc.wait()
self.assertEqual(server_proc.returncode, 0)
return result
except:
client_proc.kill()
client_proc.wait()
server_proc.kill()
server_proc.wait()
raise
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