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wlan-lanforge-scripts/py-scripts/sta_connect.py
Ben Greear cfbe26c76c json: Add python/json unit test script. 
And remove flakey helper method in LFUtils, just make user specify
the resource ID when removing ports.

The sta_connect.py script will create a station, run traffic, and calculate
pass/fail based on the results.  Idea is for it to be part of a unit-test framework.
2020-05-28 15:38:16 -07:00

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#!/usr/bin/env python3
# This will create a station, create TCP and UDP traffic, run it a short amount of time,
# and verify whether traffic was sent and received. It also verifies the station connected
# to the requested BSSID if bssid is specified as an argument.
# The script will clean up the station and connections at the end of the test.
import os
import time
import sys
import argparse
if 'py-json' not in sys.path:
sys.path.append('../py-json')
import subprocess
import json
import pprint
from LANforge import LFRequest
from LANforge import LFUtils
from LANforge.LFUtils import *
import create_genlink as genl
debugOn = True
if sys.version_info[0] != 3:
print("This script requires Python 3")
exit(1)
dest = "localhost";
port = "8080";
dut_ssid = "MyAP"
dut_passwd = "NA"
dut_bssid = ""
user = ""
passwd = ""
sta_mode = "0" # See add_sta LANforge CLI users guide entry
radio = "wiphy0"
resource = "1"
upstream_resource = "1"
upstream_port = "eth2"
sta_name = "sta001"
parser = argparse.ArgumentParser(description="LANforge Unit Test: Connect Station to AP\nExample:\n./sta_connect.py --dest 192.168.100.209 --dut_ssid OpenWrt-2 --dut_bssid 24:F5:A2:08:21:6C")
parser.add_argument("-d", "--dest", type=str, help="address of the LANforge GUI machine (localhost is default)")
parser.add_argument("-o", "--port", type=int, help="IP Port the LANforge GUI is listening on (8080 is default)")
parser.add_argument("-u", "--user", type=str, help="TBD: credential login/username")
parser.add_argument("-p", "--passwd", type=str, help="TBD: credential password")
parser.add_argument("--resource", type=str, help="LANforge Station resource ID to use, default is 1")
parser.add_argument("--upstream_resource", type=str, help="LANforge Ethernet port resource ID to use, default is 1")
parser.add_argument("--upstream_port", type=str, help="LANforge Ethernet port name, default is eth2")
parser.add_argument("--radio", type=str, help="LANforge radio to use, default is wiphy0")
parser.add_argument("--sta_mode", type=str, help="LANforge station-mode setting (see add_sta LANforge CLI documentation, default is 0 (auto))")
parser.add_argument("--dut_ssid", type=str, help="DUT SSID")
parser.add_argument("--dut_passwd", type=str, help="DUT PSK password. Do not set for OPEN auth")
parser.add_argument("--dut_bssid", type=str, help="DUT BSSID to which we expect to connect.")
args = None
args = parser.parse_args()
if (args.dest != None):
dest = args.dest
if (args.port != None):
port = args.port
if (args.user != None):
user = args.user
if (args.passwd != None):
passwd = args.passwd
if (args.sta_mode != None):
sta_mode = args.sta_mode
if (args.upstream_resource != None):
upstream_resource = args.upstream_resource
if (args.upstream_port != None):
upstream_port = args.upstream_port
if (args.radio != None):
radio = args.radio
if (args.resource != None):
resource = args.resource
if (args.dut_passwd != None):
dut_passwd = args.dut_passwd
if (args.dut_bssid != None):
dut_bssid = args.dut_bssid
if (args.dut_ssid != None):
dut_ssid = args.dut_ssid
mgrURL = "http://%s:%s/"%(dest, port)
radio_url = "port/1/%s/%s"%(resource, radio)
sta_url = "port/1/%s/%s"%(resource, sta_name)
upstream_url = "port/1/%s/%s"%(upstream_resource, upstream_port)
def jsonReq(mgrURL, reqURL, data, exitWhenCalled=False):
lf_r = LFRequest.LFRequest(mgrURL + reqURL)
data['suppress_preexec_cli'] = True
data['suppress_preexec_method'] = True
lf_r.addPostData(data)
json_response = lf_r.jsonPost(True)
# Debugging
#if (json_response != None):
# print("jsonReq: response: ")
# LFUtils.debug_printer.pprint(vars(json_response))
if exitWhenCalled:
print("jsonReq: bye")
sys.exit(1)
def getJsonInfo(mgrURL, reqURL, debug=False):
lf_r = LFRequest.LFRequest(mgrURL + reqURL)
json_response = lf_r.getAsJson(debug)
return json_response
#print(name)
#j_printer = pprint.PrettyPrinter(indent=2)
#j_printer.pprint(json_response)
#for record in json_response[key]:
# j_printer.pprint(record)
print("Checking for LANforge GUI connection: %s"%(mgrURL))
response = getJsonInfo(mgrURL, radio_url);
duration = 0
while ((response == None) and (duration < 300)):
print("LANforge GUI connection not found sleeping 5 seconds, tried: %s"%(mgrURL))
duration += 2
time.sleep(2)
response = getJsonInfo(mgrURL, radio_url)
if duration >= 300:
print("Could not connect to LANforge GUI")
sys.exit(1)
#Create stations and turn dhcp on
print("Creating station and turning on dhcp")
url = sta_url
debugOn = True
response = getJsonInfo(mgrURL, url)
if (response is not None):
if (response["interface"] is not None):
print("removing old station")
LFUtils.removePort(resource, sta_name, mgrURL)
time.sleep(5)
# See add_sta in LANforge CLI user guide
url = "cli-json/add_sta"
data = {
"shelf":1,
"resource":resource,
"radio":radio,
"sta_name":sta_name,
"ssid":dut_ssid,
"key":dut_passwd,
"mode":sta_mode,
"mac":"xx:xx:xx:xx:*:xx",
"flags":0x10000 # verbose, open
}
print("adding new station")
jsonReq(mgrURL, url, data)
reqURL = "cli-json/set_port"
data = {
"shelf":1,
"resource":resource,
"port":sta_name,
"current_flags": 0x80000000, # use DHCP, not down
"interest":0x4002 # set dhcp, current flags
}
print("configuring port")
jsonReq(mgrURL, reqURL, data)
time.sleep(5)
eth1IP = getJsonInfo(mgrURL, upstream_url)
if eth1IP['interface']['ip'] == "0.0.0.0":
print("Warning: %s lacks ip address"%(upstream_url))
reqURL = "cli-json/nc_show_ports"
data = { "shelf":1,
"resource":resource,
"port":sta_name,
"probe_flags":1 }
jsonReq(mgrURL, reqURL, data)
station_info = getJsonInfo(mgrURL, "%s?fields=port,ip,ap"%(sta_url))
duration = 0
maxTime = 300
ip = "0.0.0.0"
ap = ""
while ((ip == "0.0.0.0") and (duration < maxTime)):
duration += 2
time.sleep(2)
station_info = getJsonInfo(mgrURL, "%s?fields=port,ip,ap"%(sta_url))
#LFUtils.debug_printer.pprint(station_info)
if ((station_info is not None) and ("interface" in station_info)):
if ("ip" in station_info["interface"]):
ip = station_info["interface"]["ip"]
if ("ap" in station_info["interface"]):
ap = station_info["interface"]["ap"]
if ((ap == "Not-Associated") or (ap == "")):
print("Station waiting to associate...")
else:
if (ip == "0.0.0.0"):
print("Station waiting for IP ...")
if ((ap != "") and (ap != "Not-Associated")):
print("Connected to AP: %s"%(ap))
if (dut_bssid != ""):
if (dut_bssid.lower() == ap.lower()):
print("PASSED: Connected to BSSID: %s"%(ap))
else:
print("FAILED: Connected to wrong BSSID, requested: %s Actual: %s"%(dut_bssid, ap))
else:
print("FAILED: Did not connect to AP");
sys.exit(3)
if (ip is "0.0.0.0"):
print("FAILED: %s did not get an ip. Ending test"%(sta_name))
print("Cleaning up...")
removePort(resource, sta_name, mgrURL)
sys.exit(1)
else:
print("PASSED: Connected to AP: %s With IP: %s"%(ap, ip))
#create endpoints and cxs
# Create UDP endpoints
reqURL = "cli-json/add_endp"
data = {
"alias":"testUDP-A",
"shelf":1,
"resource":resource,
"port":sta_name,
"type":"lf_udp",
"ip_port":"-1",
"min_rate":1000000
}
jsonReq(mgrURL, reqURL, data)
reqURL = "cli-json/add_endp"
data = {
"alias":"testUDP-B",
"shelf":1,
"resource":upstream_resource,
"port":upstream_port,
"type":"lf_udp",
"ip_port":"-1",
"min_rate":1000000
}
jsonReq(mgrURL, reqURL, data)
# Create CX
reqURL = "cli-json/add_cx"
data = {
"alias":"testUDP",
"test_mgr":"default_tm",
"tx_endp":"testUDP-A",
"rx_endp":"testUDP-B",
}
jsonReq(mgrURL, reqURL, data)
# Create TCP endpoints
reqURL = "cli-json/add_endp"
data = {
"alias":"testTCP-A",
"shelf":1,
"resource":resource,
"port":sta_name,
"type":"lf_tcp",
"ip_port":"0",
"min_rate":1000000
}
jsonReq(mgrURL, reqURL, data)
reqURL = "cli-json/add_endp"
data = {
"alias":"testTCP-B",
"shelf":1,
"resource":upstream_resource,
"port":upstream_port,
"type":"lf_tcp",
"ip_port":"-1",
"min_rate":1000000
}
jsonReq(mgrURL, reqURL, data)
# Create CX
reqURL = "cli-json/add_cx"
data = {
"alias":"testTCP",
"test_mgr":"default_tm",
"tx_endp":"testTCP-A",
"rx_endp":"testTCP-B",
}
jsonReq(mgrURL, reqURL, data)
cxNames = ["testTCP","testUDP"]
endpNames = ["testTCP-A", "testTCP-B",
"testUDP-A", "testUDP-B"]
#start cx traffic
print("\nStarting CX Traffic")
for name in range(len(cxNames)):
reqURL = "cli-json/set_cx_state"
data = {
"test_mgr":"ALL",
"cx_name":cxNames[name],
"cx_state":"RUNNING"
}
jsonReq(mgrURL, reqURL, data)
# Refresh stats
print("\nRefresh CX stats")
for name in range(len(cxNames)):
reqURL = "cli-json/show_cxe"
data = {
"test_mgr":"ALL",
"cross_connect":cxNames[name]
}
jsonReq(mgrURL, reqURL, data)
#print("Sleeping for 15 seconds")
time.sleep(15)
#stop cx traffic
print("\nStopping CX Traffic")
for name in range(len(cxNames)):
reqURL = "cli-json/set_cx_state"
data = {
"test_mgr":"ALL",
"cx_name":cxNames[name],
"cx_state":"STOPPED"
}
jsonReq(mgrURL, reqURL, data)
# Refresh stats
print("\nRefresh CX stats")
for name in range(len(cxNames)):
reqURL = "cli-json/show_cxe"
data = {
"test_mgr":"ALL",
"cross_connect":cxNames[name]
}
jsonReq(mgrURL, reqURL, data)
#print("Sleeping for 5 seconds")
time.sleep(5)
#get data for endpoints JSON
print("Collecting Data")
try:
ptestTCPA = getJsonInfo(mgrURL, "endp/testTCP-A?fields=tx+bytes,rx+bytes")
ptestTCPATX = ptestTCPA['endpoint']['tx bytes']
ptestTCPARX = ptestTCPA['endpoint']['rx bytes']
ptestTCPB = getJsonInfo(mgrURL, "endp/testTCP-B?fields=tx+bytes,rx+bytes")
ptestTCPBTX = ptestTCPB['endpoint']['tx bytes']
ptestTCPBRX = ptestTCPB['endpoint']['rx bytes']
ptestUDPA = getJsonInfo(mgrURL, "endp/testUDP-A?fields=tx+bytes,rx+bytes")
ptestUDPATX = ptestUDPA['endpoint']['tx bytes']
ptestUDPARX = ptestUDPA['endpoint']['rx bytes']
ptestUDPB = getJsonInfo(mgrURL, "endp/testUDP-B?fields=tx+bytes,rx+bytes")
ptestUDPBTX = ptestUDPB['endpoint']['tx bytes']
ptestUDPBRX = ptestUDPB['endpoint']['rx bytes']
except Exception as e:
print("Something went wrong")
print(e)
print("Cleaning up...")
reqURL = "cli-json/rm_vlan"
data = {
"shelf":1,
"resource":resource,
"port":sta_name
}
jsonReq(mgrURL, reqURL, data)
removeCX(mgrURL, cxNames)
removeEndps(mgrURL, endpNames)
sys.exit(1)
#compare pre-test values to post-test values
def compareVals(name, postVal):
#print(f"Comparing {name}")
if postVal > 0:
print("PASSED: %s %s"%(name, postVal))
else:
print("FAILED: %s did not report traffic: %s"%(name, postVal))
print("\n")
compareVals("testTCP-A TX", ptestTCPATX)
compareVals("testTCP-A RX", ptestTCPARX)
compareVals("testTCP-B TX", ptestTCPBTX)
compareVals("testTCP-B RX", ptestTCPBRX)
compareVals("testUDP-A TX", ptestUDPATX)
compareVals("testUDP-A RX", ptestUDPARX)
compareVals("testUDP-B TX", ptestUDPBTX)
compareVals("testUDP-B RX", ptestUDPBRX)
print("\n")
#remove all endpoints and cxs
LFUtils.removePort(resource, sta_name, mgrURL)
removeCX(mgrURL, cxNames)
removeEndps(mgrURL, endpNames)
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