u-boot/test/py/tests/test_net.py

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# Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
#
# SPDX-License-Identifier: GPL-2.0
# Test various network-related functionality, such as the dhcp, ping, and
# tftpboot commands.
import pytest
import u_boot_utils
"""
Note: This test relies on boardenv_* containing configuration values to define
which the network environment available for testing. Without this, this test
will be automatically skipped.
For example:
# Boolean indicating whether the Ethernet device is attached to USB, and hence
# USB enumeration needs to be performed prior to network tests.
# This variable may be omitted if its value is False.
env__net_uses_usb = False
# Boolean indicating whether the Ethernet device is attached to PCI, and hence
# PCI enumeration needs to be performed prior to network tests.
# This variable may be omitted if its value is False.
env__net_uses_pci = True
# True if a DHCP server is attached to the network, and should be tested.
# If DHCP testing is not possible or desired, this variable may be omitted or
# set to False.
env__net_dhcp_server = True
# A list of environment variables that should be set in order to configure a
# static IP. If solely relying on DHCP, this variable may be omitted or set to
# an empty list.
env__net_static_env_vars = [
("ipaddr", "10.0.0.100"),
("netmask", "255.255.255.0"),
("serverip", "10.0.0.1"),
]
# Details regarding a file that may be read from a TFTP server. This variable
# may be omitted or set to None if TFTP testing is not possible or desired.
env__net_tftp_readable_file = {
"fn": "ubtest-readable.bin",
"size": 5058624,
"crc32": "c2244b26",
}
"""
net_set_up = False
def test_net_pre_commands(u_boot_console):
"""Execute any commands required to enable network hardware.
These commands are provided by the boardenv_* file; see the comment at the
beginning of this file.
"""
init_usb = u_boot_console.config.env.get('env__net_uses_usb', False)
if init_usb:
u_boot_console.run_command('usb start')
init_pci = u_boot_console.config.env.get('env__net_uses_pci', False)
if init_pci:
u_boot_console.run_command('pci enum')
@pytest.mark.buildconfigspec('cmd_dhcp')
def test_net_dhcp(u_boot_console):
"""Test the dhcp command.
The boardenv_* file may be used to enable/disable this test; see the
comment at the beginning of this file.
"""
test_dhcp = u_boot_console.config.env.get('env__net_dhcp_server', False)
if not test_dhcp:
pytest.skip('No DHCP server available')
u_boot_console.run_command('setenv autoload no')
output = u_boot_console.run_command('dhcp')
assert 'DHCP client bound to address ' in output
global net_set_up
net_set_up = True
@pytest.mark.buildconfigspec('net')
def test_net_setup_static(u_boot_console):
"""Set up a static IP configuration.
The configuration is provided by the boardenv_* file; see the comment at
the beginning of this file.
"""
env_vars = u_boot_console.config.env.get('env__net_static_env_vars', None)
if not env_vars:
pytest.skip('No static network configuration is defined')
for (var, val) in env_vars:
u_boot_console.run_command('setenv %s %s' % (var, val))
global net_set_up
net_set_up = True
@pytest.mark.buildconfigspec('cmd_ping')
def test_net_ping(u_boot_console):
"""Test the ping command.
The $serverip (as set up by either test_net_dhcp or test_net_setup_static)
is pinged. The test validates that the host is alive, as reported by the
ping command's output.
"""
if not net_set_up:
pytest.skip('Network not initialized')
output = u_boot_console.run_command('ping $serverip')
assert 'is alive' in output
@pytest.mark.buildconfigspec('cmd_net')
def test_net_tftpboot(u_boot_console):
"""Test the tftpboot command.
A file is downloaded from the TFTP server, its size and optionally its
CRC32 are validated.
The details of the file to download are provided by the boardenv_* file;
see the comment at the beginning of this file.
"""
if not net_set_up:
pytest.skip('Network not initialized')
f = u_boot_console.config.env.get('env__net_tftp_readable_file', None)
if not f:
pytest.skip('No TFTP readable file to read')
addr = u_boot_utils.find_ram_base(u_boot_console)
fn = f['fn']
output = u_boot_console.run_command('tftpboot %x %s' % (addr, fn))
expected_text = 'Bytes transferred = '
sz = f.get('size', None)
if sz:
expected_text += '%d' % sz
assert expected_text in output
expected_crc = f.get('crc32', None)
if not expected_crc:
return
if u_boot_console.config.buildconfig.get('config_cmd_crc32', 'n') != 'y':
return
output = u_boot_console.run_command('crc32 %x $filesize' % addr)
assert expected_crc in output