| #! /usr/bin/python |
| |
| # SPDX-FileCopyrightText: © 2022 Open Networking Foundation <support@opennetworking.org> |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| """ |
| cbrs_configure.py |
| |
| a tool to configure target eNB devices |
| """ |
| |
| import time |
| import argparse |
| import base64 |
| import datetime |
| import requests |
| from lxml import etree |
| |
| |
| def timestamp(): |
| """ replace with logger eventually """ |
| return datetime.datetime.now().strftime("[%Y-%m-%d %H:%M:%S]") |
| |
| |
| parser = argparse.ArgumentParser() |
| parser.add_argument("address", help="eNB IP address", type=str) |
| parser.add_argument( |
| "-u", "--username", help="eNB UI login username", type=str, default="sc_femto" |
| ) |
| parser.add_argument( |
| "-p", "--password", help="eNB UI login password", type=str, default="scHt3pp" |
| ) |
| parser.add_argument( |
| "-d", "--delay", help="delay in seconds beetween checks", type=int, default=60 |
| ) |
| parser.add_argument( |
| "-c", |
| "--count", |
| help="number of checks before sending reboot", |
| type=int, |
| default=10, |
| ) |
| |
| |
| args = parser.parse_args() |
| |
| ENB_DOMAIN = f"https://{args.address}/" |
| CGI_URL = ENB_DOMAIN + "setup.cgi" |
| LTESTATE_URL = ENB_DOMAIN + "LTE_status.htm" |
| |
| USERNAME = bytes(args.username.encode()) |
| PASSWORD = bytes(args.password.encode()) |
| |
| # Disable SSL verification since we signed the certificate by our own |
| session = requests.session() |
| session.verify = False |
| |
| # The login payload passed to cgi gateway |
| login_payload = { |
| "un": base64.b64encode(USERNAME).decode(), |
| "pw": base64.b64encode(PASSWORD).decode(), |
| "this_file": "logon.htm", |
| "next_file": "status.htm", |
| "todo": "login", |
| } |
| |
| while True: |
| try: |
| r = session.post(CGI_URL, data=login_payload, timeout=2) |
| e = etree.HTML(r.text) |
| serial_number = e.xpath("//td")[4].text |
| except requests.exceptions.ConnectTimeout: |
| print(f"{timestamp()} Unable to connect {ENB_DOMAIN}, wait 10 seconds.") |
| time.sleep(10) |
| continue |
| except IndexError: |
| print(f"{timestamp()} Invalid XML returned from {CGI_URL}, wait 10 seconds.") |
| time.sleep(10) |
| continue |
| |
| cell_down_counter = 0 |
| |
| while True: |
| r = session.get(LTESTATE_URL) |
| if r.status_code != 200: |
| print(f"{timestamp()} Unable to load {LTESTATE_URL}, retry login.") |
| time.sleep(2) |
| break |
| |
| # try to parse XML, and cache any errors |
| cell_state = "BadXML" |
| try: |
| e = etree.HTML(r.text) |
| cell_state = e.xpath("//td")[23].text |
| except IndexError: |
| print(f"{timestamp()} Invalid XML returned from {LTESTATE_URL}") |
| |
| print(f"{timestamp()} Current cell state: {cell_state}") |
| |
| # check i |
| if cell_state == "Down": |
| cell_down_counter = cell_down_counter + 1 |
| else: |
| cell_down_counter = 0 |
| |
| # eNB is down for too long |
| if cell_down_counter > args.count: |
| cell_down_total = args.count * args.delay |
| print( |
| f" {timestamp()} Cell down reaches {cell_down_total}s, restart eNodeB." |
| ) |
| reboot_payload = { |
| "this_file": "status.htm", |
| "next_file": "status.htm", |
| "todo": "reboot", |
| } |
| session.post(CGI_URL, data=reboot_payload) |
| |
| # allow time for the eNB to restart itself |
| print( |
| f" {timestamp()} Waiting {cell_down_total} after eNodeB restart for recovery" |
| ) |
| time.sleep(cell_down_total) |
| break |
| |
| time.sleep(args.delay) |