research/fragattack: add --pre-test-delay parameter

This parameter can be used each time a test needs to be delayed before
actually executing it.

Suggested-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>

research/fragattack.py

@@ -132,7 +132,7 @@ def prepare_tests(opt):
 	else: return None
 
 	# If requested, override delay and inc_pn parameters in the test.
-	test.set_general_options(opt.delay, opt.inc_pn)
+	test.set_general_options(opt.delay, opt.inc_pn, opt.pre_test_delay)
 
 	# If requested, override the ptype
 	if opt.ptype != None:
@@ -218,6 +218,7 @@ def get_expected_scapy_ver():
 	parser.add_argument('--to-self', default=False, action='store_true', help="Send ARP/DHCP/ICMP with same src and dst MAC address.")
 	parser.add_argument('--no-drivercheck', default=False, action='store_true', help="Don't check if patched drivers are being used.")
 	parser.add_argument('--stay-up', default=False, action='store_true', help="Don't quit when test has finished.")
+	parser.add_argument('--pre-test-delay', type=int, default=0, help="Delay before launching the test")
 	options = parser.parse_args()
 
 	# Check if we're using the expected scapy version