esp-idf/examples/system/ota/native_ota_example/pytest_native_ota.py

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# SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: Unlicense OR CC0-1.0
import http.server
import multiprocessing
import os
import random
import socket
import ssl
import struct
import subprocess
from typing import Callable, Tuple
import pexpect
import pytest
from pytest_embedded import Dut
server_cert = '-----BEGIN CERTIFICATE-----\n' \
'MIIDWDCCAkACCQCbF4+gVh/MLjANBgkqhkiG9w0BAQsFADBuMQswCQYDVQQGEwJJ\n'\
'TjELMAkGA1UECAwCTUgxDDAKBgNVBAcMA1BVTjEMMAoGA1UECgwDRVNQMQwwCgYD\n'\
'VQQLDANFU1AxDDAKBgNVBAMMA0VTUDEaMBgGCSqGSIb3DQEJARYLZXNwQGVzcC5j\n'\
'b20wHhcNMjEwNzEyMTIzNjI3WhcNNDEwNzA3MTIzNjI3WjBuMQswCQYDVQQGEwJJ\n'\
'TjELMAkGA1UECAwCTUgxDDAKBgNVBAcMA1BVTjEMMAoGA1UECgwDRVNQMQwwCgYD\n'\
'VQQLDANFU1AxDDAKBgNVBAMMA0VTUDEaMBgGCSqGSIb3DQEJARYLZXNwQGVzcC5j\n'\
'b20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDhxF/y7bygndxPwiWL\n'\
'SwS9LY3uBMaJgup0ufNKVhx+FhGQOu44SghuJAaH3KkPUnt6SOM8jC97/yQuc32W\n'\
'ukI7eBZoA12kargSnzdv5m5rZZpd+NznSSpoDArOAONKVlzr25A1+aZbix2mKRbQ\n'\
'S5w9o1N2BriQuSzd8gL0Y0zEk3VkOWXEL+0yFUT144HnErnD+xnJtHe11yPO2fEz\n'\
'YaGiilh0ddL26PXTugXMZN/8fRVHP50P2OG0SvFpC7vghlLp4VFM1/r3UJnvL6Oz\n'\
'3ALc6dhxZEKQucqlpj8l1UegszQToopemtIj0qXTHw2+uUnkUyWIPjPC+wdOAoap\n'\
'rFTRAgMBAAEwDQYJKoZIhvcNAQELBQADggEBAItw24y565k3C/zENZlxyzto44ud\n'\
'IYPQXN8Fa2pBlLe1zlSIyuaA/rWQ+i1daS8nPotkCbWZyf5N8DYaTE4B0OfvoUPk\n'\
'B5uGDmbuk6akvlB5BGiYLfQjWHRsK9/4xjtIqN1H58yf3QNROuKsPAeywWS3Fn32\n'\
'3//OpbWaClQePx6udRYMqAitKR+QxL7/BKZQsX+UyShuq8hjphvXvk0BW8ONzuw9\n'\
'RcoORxM0FzySYjeQvm4LhzC/P3ZBhEq0xs55aL2a76SJhq5hJy7T/Xz6NFByvlrN\n'\
'lFJJey33KFrAf5vnV9qcyWFIo7PYy2VsaaEjFeefr7q3sTFSMlJeadexW2Y=\n'\
'-----END CERTIFICATE-----\n'
server_key = '-----BEGIN PRIVATE KEY-----\n'\
'MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDhxF/y7bygndxP\n'\
'wiWLSwS9LY3uBMaJgup0ufNKVhx+FhGQOu44SghuJAaH3KkPUnt6SOM8jC97/yQu\n'\
'c32WukI7eBZoA12kargSnzdv5m5rZZpd+NznSSpoDArOAONKVlzr25A1+aZbix2m\n'\
'KRbQS5w9o1N2BriQuSzd8gL0Y0zEk3VkOWXEL+0yFUT144HnErnD+xnJtHe11yPO\n'\
'2fEzYaGiilh0ddL26PXTugXMZN/8fRVHP50P2OG0SvFpC7vghlLp4VFM1/r3UJnv\n'\
'L6Oz3ALc6dhxZEKQucqlpj8l1UegszQToopemtIj0qXTHw2+uUnkUyWIPjPC+wdO\n'\
'AoaprFTRAgMBAAECggEAE0HCxV/N1Q1h+1OeDDGL5+74yjKSFKyb/vTVcaPCrmaH\n'\
'fPvp0ddOvMZJ4FDMAsiQS6/n4gQ7EKKEnYmwTqj4eUYW8yxGUn3f0YbPHbZT+Mkj\n'\
'z5woi3nMKi/MxCGDQZX4Ow3xUQlITUqibsfWcFHis8c4mTqdh4qj7xJzehD2PVYF\n'\
'gNHZsvVj6MltjBDAVwV1IlGoHjuElm6vuzkfX7phxcA1B4ZqdYY17yCXUnvui46z\n'\
'Xn2kUTOOUCEgfgvGa9E+l4OtdXi5IxjaSraU+dlg2KsE4TpCuN2MEVkeR5Ms3Y7Q\n'\
'jgJl8vlNFJDQpbFukLcYwG7rO5N5dQ6WWfVia/5XgQKBgQD74at/bXAPrh9NxPmz\n'\
'i1oqCHMDoM9sz8xIMZLF9YVu3Jf8ux4xVpRSnNy5RU1gl7ZXbpdgeIQ4v04zy5aw\n'\
'8T4tu9K3XnR3UXOy25AK0q+cnnxZg3kFQm+PhtOCKEFjPHrgo2MUfnj+EDddod7N\n'\
'JQr9q5rEFbqHupFPpWlqCa3QmQKBgQDldWUGokNaEpmgHDMnHxiibXV5LQhzf8Rq\n'\
'gJIQXb7R9EsTSXEvsDyqTBb7PHp2Ko7rZ5YQfyf8OogGGjGElnPoU/a+Jij1gVFv\n'\
'kZ064uXAAISBkwHdcuobqc5EbG3ceyH46F+FBFhqM8KcbxJxx08objmh58+83InN\n'\
'P9Qr25Xw+QKBgEGXMHuMWgQbSZeM1aFFhoMvlBO7yogBTKb4Ecpu9wI5e3Kan3Al\n'\
'pZYltuyf+VhP6XG3IMBEYdoNJyYhu+nzyEdMg8CwXg+8LC7FMis/Ve+o7aS5scgG\n'\
'1to/N9DK/swCsdTRdzmc/ZDbVC+TuVsebFBGYZTyO5KgqLpezqaIQrTxAoGALFCU\n'\
'10glO9MVyl9H3clap5v+MQ3qcOv/EhaMnw6L2N6WVT481tnxjW4ujgzrFcE4YuxZ\n'\
'hgwYu9TOCmeqopGwBvGYWLbj+C4mfSahOAs0FfXDoYazuIIGBpuv03UhbpB1Si4O\n'\
'rJDfRnuCnVWyOTkl54gKJ2OusinhjztBjcrV1XkCgYEA3qNi4uBsPdyz9BZGb/3G\n'\
'rOMSw0CaT4pEMTLZqURmDP/0hxvTk1polP7O/FYwxVuJnBb6mzDa0xpLFPTpIAnJ\n'\
'YXB8xpXU69QVh+EBbemdJWOd+zp5UCfXvb2shAeG3Tn/Dz4cBBMEUutbzP+or0nG\n'\
'vSXnRLaxQhooWm+IuX9SuBQ=\n'\
'-----END PRIVATE KEY-----\n'
def get_my_ip() -> str:
s1 = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s1.connect(('8.8.8.8', 80))
my_ip = ''
my_ip = s1.getsockname()[0]
s1.close()
return my_ip
def get_server_status(host_ip: str, port: int) -> bool:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_status = sock.connect_ex((host_ip, port))
sock.close()
if server_status == 0:
return True
return False
def create_file(server_file: str, file_data: str) -> None:
with open(server_file, 'w+') as file:
file.write(file_data)
def get_ca_cert(ota_image_dir: str) -> Tuple[str, str]:
os.chdir(ota_image_dir)
server_file = os.path.join(ota_image_dir, 'server_cert.pem')
create_file(server_file, server_cert)
key_file = os.path.join(ota_image_dir, 'server_key.pem')
create_file(key_file, server_key)
return server_file, key_file
def https_request_handler() -> Callable[...,http.server.BaseHTTPRequestHandler]:
"""
Returns a request handler class that handles broken pipe exception
"""
class RequestHandler(http.server.SimpleHTTPRequestHandler):
def finish(self) -> None:
try:
if not self.wfile.closed:
self.wfile.flush()
self.wfile.close()
except socket.error:
pass
self.rfile.close()
def handle(self) -> None:
try:
http.server.BaseHTTPRequestHandler.handle(self)
except socket.error:
pass
return RequestHandler
def start_https_server(ota_image_dir: str, server_ip: str, server_port: int) -> None:
server_file, key_file = get_ca_cert(ota_image_dir)
requestHandler = https_request_handler()
httpd = http.server.HTTPServer((server_ip, server_port), requestHandler)
httpd.socket = ssl.wrap_socket(httpd.socket,
keyfile=key_file,
certfile=server_file, server_side=True)
httpd.serve_forever()
def start_chunked_server(ota_image_dir: str, server_port: int) -> subprocess.Popen:
server_file, key_file = get_ca_cert(ota_image_dir)
chunked_server = subprocess.Popen(['openssl', 's_server', '-WWW', '-key', key_file, '-cert', server_file, '-port', str(server_port)])
return chunked_server
@pytest.mark.supported_targets
@pytest.mark.ethernet_ota
def test_examples_protocol_native_ota_example(dut: Dut) -> None:
"""
This is a positive test case, which downloads complete binary file multiple number of times.
Number of iterations can be specified in variable iterations.
steps: |
1. join AP
2. Fetch OTA image over HTTPS
3. Reboot with the new OTA image
"""
server_port = 8002
# No. of times working of application to be validated
iterations = 3
# File to be downloaded. This file is generated after compilation
bin_name = 'native_ota.bin'
# start test
host_ip = get_my_ip()
if (get_server_status(host_ip, server_port) is False):
thread1 = multiprocessing.Process(target=start_https_server, args=(dut.app.binary_path, host_ip, server_port))
thread1.daemon = True
thread1.start()
for i in range(iterations):
dut.expect('Loaded app from partition at offset', timeout=60)
try:
ip_address = dut.expect(r' (sta|eth) ip: ([^,]+),', timeout=30)
print('Connected to AP with IP: {}'.format(ip_address))
except pexpect.exceptions.TIMEOUT:
thread1.terminate()
raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP')
dut.expect('Starting OTA example', timeout=30)
print('writing to device: {}'.format('https://' + host_ip + ':' + str(server_port) + '/' + bin_name))
dut.write('https://' + host_ip + ':' + str(server_port) + '/' + bin_name)
thread1.terminate()
@pytest.mark.supported_targets
@pytest.mark.ethernet_ota
def test_examples_protocol_native_ota_example_truncated_bin(dut: Dut) -> None:
"""
Working of OTA if binary file is truncated is validated in this test case.
Application should return with error message in this case.
steps: |
1. join AP
2. Generate truncated binary file
3. Fetch OTA image over HTTPS
4. Check working of code if bin is truncated
"""
server_port = 8002
# Original binary file generated after compilation
bin_name = 'native_ota.bin'
# Truncated binary file to be generated from original binary file
truncated_bin_name = 'truncated.bin'
# Size of truncated file to be grnerated. This value can range from 288 bytes (Image header size) to size of original binary file
# truncated_bin_size is set to 64000 to reduce consumed by the test case
truncated_bin_size = 64000
# check and log bin size
binary_file = os.path.join(dut.app.binary_path, bin_name)
f = open(binary_file, 'rb+')
fo = open(os.path.join(dut.app.binary_path, truncated_bin_name), 'wb+')
fo.write(f.read(truncated_bin_size))
fo.close()
f.close()
binary_file = os.path.join(dut.app.binary_path, truncated_bin_name)
# start test
host_ip = get_my_ip()
if (get_server_status(host_ip, server_port) is False):
thread1 = multiprocessing.Process(target=start_https_server, args=(dut.app.binary_path, host_ip, server_port))
thread1.daemon = True
thread1.start()
dut.expect('Loaded app from partition at offset', timeout=30)
try:
ip_address = dut.expect(r' (sta|eth) ip: ([^,]+),', timeout=30)
print('Connected to AP with IP: {}'.format(ip_address))
except pexpect.exceptions.TIMEOUT:
thread1.terminate()
raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP')
dut.expect('Starting OTA example', timeout=30)
print('writing to device: {}'.format('https://' + host_ip + ':' + str(server_port) + '/' + truncated_bin_name))
dut.write('https://' + host_ip + ':' + str(server_port) + '/' + truncated_bin_name)
dut.expect('native_ota_example: Image validation failed, image is corrupted', timeout=20)
os.remove(binary_file)
thread1.terminate()
@pytest.mark.supported_targets
@pytest.mark.ethernet_ota
def test_examples_protocol_native_ota_example_truncated_header(dut: Dut) -> None:
"""
Working of OTA if headers of binary file are truncated is vaildated in this test case.
Application should return with error message in this case.
steps: |
1. join AP
2. Generate binary file with truncated headers
3. Fetch OTA image over HTTPS
4. Check working of code if headers are not sent completely
"""
server_port = 8002
# Original binary file generated after compilation
bin_name = 'native_ota.bin'
# Truncated binary file to be generated from original binary file
truncated_bin_name = 'truncated_header.bin'
# Size of truncated file to be grnerated. This value should be less than 288 bytes (Image header size)
truncated_bin_size = 180
# check and log bin size
binary_file = os.path.join(dut.app.binary_path, bin_name)
f = open(binary_file, 'rb+')
fo = open(os.path.join(dut.app.binary_path, truncated_bin_name), 'wb+')
fo.write(f.read(truncated_bin_size))
fo.close()
f.close()
binary_file = os.path.join(dut.app.binary_path, truncated_bin_name)
# start test
host_ip = get_my_ip()
if (get_server_status(host_ip, server_port) is False):
thread1 = multiprocessing.Process(target=start_https_server, args=(dut.app.binary_path, host_ip, server_port))
thread1.daemon = True
thread1.start()
dut.expect('Loaded app from partition at offset', timeout=30)
try:
ip_address = dut.expect(r' (sta|eth) ip: ([^,]+),', timeout=30)
print('Connected to AP with IP: {}'.format(ip_address))
except pexpect.exceptions.TIMEOUT:
thread1.terminate()
raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP')
dut.expect('Starting OTA example', timeout=30)
print('writing to device: {}'.format('https://' + host_ip + ':' + str(server_port) + '/' + truncated_bin_name))
dut.write('https://' + host_ip + ':' + str(server_port) + '/' + truncated_bin_name)
dut.expect('native_ota_example: received package is not fit len', timeout=20)
os.remove(binary_file)
thread1.terminate()
@pytest.mark.supported_targets
@pytest.mark.ethernet_ota
def test_examples_protocol_native_ota_example_random(dut: Dut) -> None:
"""
Working of OTA if random data is added in binary file are validated in this test case.
Magic byte verification should fail in this case.
steps: |
1. join AP
2. Generate random binary image
3. Fetch OTA image over HTTPS
4. Check working of code for random binary file
"""
server_port = 8002
# Random binary file to be generated
random_bin_name = 'random.bin'
# Size of random binary file. 32000 is choosen, to reduce the time required to run the test-case
random_bin_size = 32000
# check and log bin size
binary_file = os.path.join(dut.app.binary_path, random_bin_name)
fo = open(binary_file, 'wb+')
# First byte of binary file is always set to zero. If first byte is generated randomly,
# in some cases it may generate 0xE9 which will result in failure of testcase.
fo.write(struct.pack('B', 0))
for i in range(random_bin_size - 1):
fo.write(struct.pack('B', random.randrange(0,255,1)))
fo.close()
# start test
host_ip = get_my_ip()
if (get_server_status(host_ip, server_port) is False):
thread1 = multiprocessing.Process(target=start_https_server, args=(dut.app.binary_path, host_ip, server_port))
thread1.daemon = True
thread1.start()
dut.expect('Loaded app from partition at offset', timeout=30)
try:
ip_address = dut.expect(r' (sta|eth) ip: ([^,]+),', timeout=30)
print('Connected to AP with IP: {}'.format(ip_address))
except pexpect.exceptions.TIMEOUT:
thread1.terminate()
raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP')
dut.expect('Starting OTA example', timeout=30)
print('writing to device: {}'.format('https://' + host_ip + ':' + str(server_port) + '/' + random_bin_name))
dut.write('https://' + host_ip + ':' + str(server_port) + '/' + random_bin_name)
dut.expect('esp_ota_ops: OTA image has invalid magic byte', timeout=20)
os.remove(binary_file)
thread1.terminate()
@pytest.mark.supported_targets
@pytest.mark.ethernet_ota
def test_examples_protocol_native_ota_example_chunked(dut: Dut) -> None:
"""
This is a positive test case, which downloads complete binary file multiple number of times.
Number of iterations can be specified in variable iterations.
steps: |
1. join AP
2. Fetch OTA image over HTTPS
3. Reboot with the new OTA image
"""
# File to be downloaded. This file is generated after compilation
bin_name = 'native_ota.bin'
# start test
host_ip = get_my_ip()
chunked_server = start_chunked_server(dut.app.binary_path, 8070)
dut.expect('Loaded app from partition at offset', timeout=30)
try:
ip_address = dut.expect(r' (sta|eth) ip: ([^,]+),', timeout=30)
print('Connected to AP with IP: {}'.format(ip_address))
except pexpect.exceptions.TIMEOUT:
raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP')
dut.expect('Starting OTA example', timeout=30)
print('writing to device: {}'.format('https://' + host_ip + ':8070/' + bin_name))
dut.write('https://' + host_ip + ':8070/' + bin_name)
dut.expect('Loaded app from partition at offset', timeout=60)
dut.expect('Starting OTA example', timeout=30)
chunked_server.kill()
os.remove(os.path.join(dut.app.binary_path, 'server_cert.pem'))
os.remove(os.path.join(dut.app.binary_path, 'server_key.pem'))