tests: Add reproducer for bug 15487

Show that smbd crashes if asked to return full information on close of a
stream handle with delete on close disposition set.

Bug: https://bugzilla.samba.org/show_bug.cgi?id=15487

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

python/samba/tests/libsmb-basic.py

@@ -242,6 +242,27 @@ class LibsmbTestCase(samba.tests.libsmb.LibsmbTests):
         # Without the bugfix for 15481 we get 'file' not 'File'
         self.assertEqual(directory[0]['name'], 'File')
 
+    def test_stream_close_with_full_information(self):
+        c = libsmb.Conn(self.server_ip, "streams_xattr", self.lp, self.creds)
+
+        try:
+            c.deltree("teststreams")
+        except:
+            pass
+
+        c.mkdir("teststreams")
+        fh = c.create("teststreams\\stream_full_close_info.txt:Stream",
+                      DesiredAccess=security.SEC_STD_DELETE,
+                      CreateDisposition=libsmb.FILE_CREATE)
+        c.delete_on_close(fh, 1)
+
+        try:
+            c.close(fh, libsmb.SMB2_CLOSE_FLAGS_FULL_INFORMATION)
+        except:
+            self.fail()
+
+        c.deltree("teststreams")
+
 if __name__ == "__main__":
     import unittest
     unittest.main()

selftest/knownfail.d/close_full_info

@@ -0,0 +1 @@
+^samba.tests.libsmb-basic.samba.tests.libsmb-basic.LibsmbTestCase.test_stream_close_with_full_information