tests: Add smb3 posix negotiate tests

Make sure we do and don't announce posix depending on "smb3 unix
extensions" parameter

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

python/samba/tests/smb3unix.py

@@ -0,0 +1,70 @@
+# Unix SMB/CIFS implementation.
+# Copyright Volker Lendecke <vl@samba.org> 2022
+#
+# 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/>.
+#
+
+from samba.samba3 import libsmb_samba_internal as libsmb
+from samba.samba3 import param as s3param
+from samba import (credentials,NTSTATUSError)
+import samba.tests
+import os
+
+class Smb3UnixTests(samba.tests.TestCase):
+
+    def setUp(self):
+        self.lp = s3param.get_context()
+        self.lp.load(os.getenv("SMB_CONF_PATH"))
+
+        self.creds = credentials.Credentials()
+        self.creds.guess(self.lp)
+        self.creds.set_username(os.getenv("USERNAME"))
+        self.creds.set_password(os.getenv("PASSWORD"))
+
+        # Build the global inject file path
+        server_conf = os.getenv("SERVERCONFFILE")
+        server_conf_dir = os.path.dirname(server_conf)
+        self.global_inject = os.path.join(server_conf_dir, "global_inject.conf")
+
+    def enable_smb3unix(self):
+        with open(self.global_inject, 'w') as f:
+            f.write("smb3 unix extensions = yes\n")
+
+    def disable_smb3unix(self):
+        with open(self.global_inject, 'w') as f:
+            f.truncate()
+
+    def test_negotiate_context_posix(self):
+        try:
+            self.enable_smb3unix()
+
+            c = libsmb.Conn(
+                os.getenv("SERVER_IP"),
+                "tmp",
+                self.lp,
+                self.creds,
+                posix=True)
+            self.assertTrue(c.have_posix())
+
+        finally:
+            self.disable_smb3unix()
+
+    def test_negotiate_context_noposix(self):
+        c = libsmb.Conn(
+                os.getenv("SERVER_IP"),
+                "tmp",
+                self.lp,
+                self.creds,
+                posix=True)
+        self.assertFalse(c.have_posix())