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|
#!/usr/bin/env python
#
# Test ssh image creation
#
# Copyright (C) 2018 Red Hat, Inc.
#
# Creator/Owner: Kevin Wolf <kwolf@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import iotests
import subprocess
import re
iotests.verify_image_format(supported_fmts=['raw'])
iotests.verify_protocol(supported=['ssh'])
def filter_hash(qmsg):
def _filter(key, value):
if key == 'hash' and re.match('[0-9a-f]+', value):
return 'HASH'
return value
return iotests.filter_qmp(qmsg, _filter)
def blockdev_create(vm, options):
vm.blockdev_create(options, filters=[iotests.filter_qmp_testfiles, filter_hash])
with iotests.FilePath('t.img') as disk_path, \
iotests.VM() as vm:
remote_path = iotests.remote_filename(disk_path)
#
# Successful image creation (defaults)
#
iotests.log("=== Successful image creation (defaults) ===")
iotests.log("")
vm.launch()
blockdev_create(vm, { 'driver': 'ssh',
'location': {
'path': disk_path,
'server': {
'host': '127.0.0.1',
'port': '22'
}
},
'size': 4194304 })
vm.shutdown()
iotests.img_info_log(remote_path)
iotests.log("")
iotests.img_info_log(disk_path)
#
# Test host-key-check options
#
iotests.log("=== Test host-key-check options ===")
iotests.log("")
vm.launch()
blockdev_create(vm, { 'driver': 'ssh',
'location': {
'path': disk_path,
'server': {
'host': '127.0.0.1',
'port': '22'
},
'host-key-check': {
'mode': 'none'
}
},
'size': 8388608 })
vm.shutdown()
iotests.img_info_log(remote_path)
vm.launch()
blockdev_create(vm, { 'driver': 'ssh',
'location': {
'path': disk_path,
'server': {
'host': '127.0.0.1',
'port': '22'
},
'host-key-check': {
'mode': 'known_hosts'
}
},
'size': 4194304 })
vm.shutdown()
iotests.img_info_log(remote_path)
keys = subprocess.check_output(
'ssh-keyscan 127.0.0.1 2>/dev/null | grep -v "\\^#" | ' +
'cut -d" " -f3',
shell=True).rstrip().decode('ascii').split('\n')
# Mappings of base64 representations to digests
md5_keys = {}
sha1_keys = {}
for key in keys:
md5_keys[key] = subprocess.check_output(
'echo %s | base64 -d | md5sum -b | cut -d" " -f1' % key,
shell=True).rstrip().decode('ascii')
sha1_keys[key] = subprocess.check_output(
'echo %s | base64 -d | sha1sum -b | cut -d" " -f1' % key,
shell=True).rstrip().decode('ascii')
vm.launch()
# Find correct key first
matching_key = None
for key in keys:
result = vm.qmp('blockdev-add',
driver='ssh', node_name='node0', path=disk_path,
server={
'host': '127.0.0.1',
'port': '22',
}, host_key_check={
'mode': 'hash',
'type': 'md5',
'hash': md5_keys[key],
})
if 'error' not in result:
vm.qmp('blockdev-del', node_name='node0')
matching_key = key
break
if matching_key is None:
vm.shutdown()
iotests.notrun('Did not find a key that fits 127.0.0.1')
blockdev_create(vm, { 'driver': 'ssh',
'location': {
'path': disk_path,
'server': {
'host': '127.0.0.1',
'port': '22'
},
'host-key-check': {
'mode': 'hash',
'type': 'md5',
'hash': 'wrong',
}
},
'size': 2097152 })
blockdev_create(vm, { 'driver': 'ssh',
'location': {
'path': disk_path,
'server': {
'host': '127.0.0.1',
'port': '22'
},
'host-key-check': {
'mode': 'hash',
'type': 'md5',
'hash': md5_keys[matching_key],
}
},
'size': 8388608 })
vm.shutdown()
iotests.img_info_log(remote_path)
vm.launch()
blockdev_create(vm, { 'driver': 'ssh',
'location': {
'path': disk_path,
'server': {
'host': '127.0.0.1',
'port': '22'
},
'host-key-check': {
'mode': 'hash',
'type': 'sha1',
'hash': 'wrong',
}
},
'size': 2097152 })
blockdev_create(vm, { 'driver': 'ssh',
'location': {
'path': disk_path,
'server': {
'host': '127.0.0.1',
'port': '22'
},
'host-key-check': {
'mode': 'hash',
'type': 'sha1',
'hash': sha1_keys[matching_key],
}
},
'size': 4194304 })
vm.shutdown()
iotests.img_info_log(remote_path)
#
# Invalid path and user
#
iotests.log("=== Invalid path and user ===")
iotests.log("")
vm.launch()
blockdev_create(vm, { 'driver': 'ssh',
'location': {
'path': '/this/is/not/an/existing/path',
'server': {
'host': '127.0.0.1',
'port': '22'
},
'host-key-check': {
'mode': 'none'
}
},
'size': 4194304 })
blockdev_create(vm, { 'driver': 'ssh',
'location': {
'path': disk_path,
'user': 'invalid user',
'server': {
'host': '127.0.0.1',
'port': '22'
},
'host-key-check': {
'mode': 'none'
}
},
'size': 4194304 })
vm.shutdown()
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