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#!/usr/bin/env python3
#
# SPDX-License-Identifier: GPL-2.0-or-later
'''
Functional test that checks the pxelinux.cfg network booting of a s390x VM
(TFTP booting without config file is already tested by the pxe qtest, so
we don't repeat that here).
'''
import os
import shutil
from qemu_test import QemuSystemTest, Asset, wait_for_console_pattern
PXELINUX_CFG_CONTENTS='''# pxelinux.cfg style config file
default Debian
label Nonexisting
kernel kernel.notavailable
initrd initrd.notavailable
label Debian
kernel kernel.debian
initrd initrd.debian
append testoption=teststring
label Fedora
kernel kernel.fedora
'''
class S390PxeLinux(QemuSystemTest):
'''
Test various ways of booting via a pxelinux.cfg file, for details see:
https://wiki.syslinux.org/wiki/index.php?title=PXELINUX#Configuration
'''
ASSET_DEBIAN_KERNEL = Asset(
('https://snapshot.debian.org/archive/debian/'
'20201126T092837Z/dists/buster/main/installer-s390x/'
'20190702+deb10u6/images/generic/kernel.debian'),
'd411d17c39ae7ad38d27534376cbe88b68b403c325739364122c2e6f1537e818')
ASSET_DEBIAN_INITRD = Asset(
('https://snapshot.debian.org/archive/debian/'
'20201126T092837Z/dists/buster/main/installer-s390x/'
'20190702+deb10u6/images/generic/initrd.debian'),
'836bbd0fe6a5ca81274c28c2b063ea315ce1868660866e9b60180c575fef9fd5')
ASSET_FEDORA_KERNEL = Asset(
('https://archives.fedoraproject.org/pub/archive'
'/fedora-secondary/releases/31/Server/s390x/os'
'/images/kernel.img'),
'480859574f3f44caa6cd35c62d70e1ac0609134e22ce2a954bbed9b110c06e0b')
def pxelinux_launch(self, pl_name='default', extra_opts=None):
'''Create a pxelinux.cfg file in the right location and launch QEMU'''
self.require_netdev('user')
self.set_machine('s390-ccw-virtio')
debian_kernel = self.ASSET_DEBIAN_KERNEL.fetch()
debian_initrd = self.ASSET_DEBIAN_INITRD.fetch()
fedora_kernel = self.ASSET_FEDORA_KERNEL.fetch()
# Prepare a folder for the TFTP "server":
tftpdir = self.scratch_file('tftp')
shutil.rmtree(tftpdir, ignore_errors=True) # Remove stale stuff
os.mkdir(tftpdir)
shutil.copy(debian_kernel, os.path.join(tftpdir, 'kernel.debian'))
shutil.copy(debian_initrd, os.path.join(tftpdir, 'initrd.debian'))
shutil.copy(fedora_kernel, os.path.join(tftpdir, 'kernel.fedora'))
pxelinuxdir = self.scratch_file('tftp', 'pxelinux.cfg')
os.mkdir(pxelinuxdir)
cfg_fname = self.scratch_file('tftp', 'pxelinux.cfg', pl_name)
with open(cfg_fname, 'w', encoding='utf-8') as f:
f.write(PXELINUX_CFG_CONTENTS)
virtio_net_dev = 'virtio-net-ccw,netdev=n1,bootindex=1'
if extra_opts:
virtio_net_dev += ',' + extra_opts
self.vm.add_args('-m', '384',
'-netdev', f'user,id=n1,tftp={tftpdir}',
'-device', virtio_net_dev)
self.vm.set_console()
self.vm.launch()
def test_default(self):
'''Check whether the guest uses the "default" file name'''
self.pxelinux_launch()
# The kernel prints its arguments to the console, so we can use
# this to check whether the kernel parameters are correctly handled:
wait_for_console_pattern(self, 'testoption=teststring')
# Now also check that we've successfully loaded the initrd:
wait_for_console_pattern(self, 'Unpacking initramfs...')
wait_for_console_pattern(self, 'Run /init as init process')
def test_mac(self):
'''Check whether the guest uses file name based on its MAC address'''
self.pxelinux_launch(pl_name='01-02-ca-fe-ba-be-42',
extra_opts='mac=02:ca:fe:ba:be:42,loadparm=3')
wait_for_console_pattern(self, 'Linux version 5.3.7-301.fc31.s390x')
def test_uuid(self):
'''Check whether the guest uses file name based on its UUID'''
# Also add a non-bootable disk to check the fallback to network boot:
self.vm.add_args('-blockdev', 'null-co,size=65536,node-name=d1',
'-device', 'virtio-blk,drive=d1,bootindex=0,loadparm=1',
'-uuid', '550e8400-e29b-11d4-a716-446655441234')
self.pxelinux_launch(pl_name='550e8400-e29b-11d4-a716-446655441234')
wait_for_console_pattern(self, 'Debian 4.19.146-1 (2020-09-17)')
def test_ip(self):
'''Check whether the guest uses file name based on its IP address'''
self.vm.add_args('-M', 'loadparm=3')
self.pxelinux_launch(pl_name='0A00020F')
wait_for_console_pattern(self, 'Linux version 5.3.7-301.fc31.s390x')
def test_menu(self):
'''Check whether the boot menu works for pxelinux.cfg booting'''
self.vm.add_args('-boot', 'menu=on,splash-time=10')
self.pxelinux_launch(pl_name='0A00')
wait_for_console_pattern(self, '[1] Nonexisting')
wait_for_console_pattern(self, '[2] Debian')
wait_for_console_pattern(self, '[3] Fedora')
wait_for_console_pattern(self, 'Debian 4.19.146-1 (2020-09-17)')
if __name__ == '__main__':
QemuSystemTest.main()
|
