freeipa/ipatests/test_integration/test_upgrade.py
Florence Blanc-Renaud 526686ec1c ipatests: add test for PKI subsystem detection
Add a new upgrade test. Scenario:
- create an empty /var/lib/pki/pki-tomcat/kra directory
- call ipa-server-upgrade

With issue 8596, the upgrade fails because it assumes KRA is
installed. With the fix, ipa-server-upgrade completes successfully.

Related: https://pagure.io/freeipa/issue/8596
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>
2020-12-09 09:54:58 +01:00

306 lines
11 KiB
Python

#
# Copyright (C) 2018 FreeIPA Contributors see COPYING for license
#
"""
Module provides tests to verify that the upgrade script works.
"""
import base64
import configparser
import os
import io
import textwrap
from cryptography.hazmat.primitives import serialization
import pytest
from ipaplatform.paths import paths
from ipapython.dn import DN
from ipapython.ipautil import template_str
from ipaserver.install import bindinstance
from ipaserver.install.sysupgrade import STATEFILE_FILE
from ipatests.test_integration.base import IntegrationTest
from ipatests.pytest_ipa.integration import tasks
# old template without comments for testing
# and "dnssec-validation no"
OLD_NAMED_TEMPLATE = """
options {
listen-on-v6 {any;};
directory "$NAMED_VAR_DIR"; // the default
dump-file "${NAMED_DATA_DIR}cache_dump.db";
statistics-file "${NAMED_DATA_DIR}named_stats.txt";
memstatistics-file "${NAMED_DATA_DIR}named_mem_stats.txt";
tkey-gssapi-keytab "$NAMED_KEYTAB";
pid-file "$NAMED_PID";
dnssec-enable yes;
dnssec-validation no;
bindkeys-file "$BINDKEYS_FILE";
managed-keys-directory "$MANAGED_KEYS_DIR";
$INCLUDE_CRYPTO_POLICY
};
logging {
channel default_debug {
file "${NAMED_DATA_DIR}named.run";
severity dynamic;
print-time yes;
};
};
include "$RFC1912_ZONES";
include "$ROOT_KEY";
/* WARNING: This part of the config file is IPA-managed.
* Modifications may break IPA setup or upgrades.
*/
dyndb "ipa" "$BIND_LDAP_SO" {
uri "ldapi://%2fvar%2frun%2fslapd-$SERVER_ID.socket";
base "cn=dns,$SUFFIX";
server_id "$FQDN";
auth_method "sasl";
sasl_mech "GSSAPI";
sasl_user "DNS/$FQDN";
};
/* End of IPA-managed part. */
"""
def named_test_template(host):
# create bind instance to get a substitution dict
bind = bindinstance.BindInstance()
bind.setup_templating(
fqdn=host.hostname,
realm_name=host.domain.realm,
domain_name=host.domain.name,
)
sub_dict = bind.sub_dict.copy()
sub_dict.update(BINDKEYS_FILE="/etc/named.iscdlv.key")
return template_str(OLD_NAMED_TEMPLATE, sub_dict)
def clear_sysupgrade(host, *sections):
# get state file
statefile = os.path.join(paths.STATEFILE_DIR, STATEFILE_FILE)
state = host.get_file_contents(statefile, encoding="utf-8")
# parse it
parser = configparser.ConfigParser()
parser.optionxform = str
parser.read_string(state)
# remove sections
for section in sections:
parser.remove_section(section)
# dump the modified config
out = io.StringIO()
parser.write(out)
# upload it
host.put_file_contents(statefile, out.getvalue())
class TestUpgrade(IntegrationTest):
"""
Test ipa-server-upgrade.
Note that ipa-server-upgrade on a CA-less installation is tested
in ``test_caless.TestIPACommands.test_invoke_upgrader``.
"""
@classmethod
def install(cls, mh):
tasks.install_master(cls.master)
tasks.install_dns(cls.master)
def test_invoke_upgrader(self):
cmd = self.master.run_command(['ipa-server-upgrade'],
raiseonerr=False)
assert ("DN: cn=Schema Compatibility,cn=plugins,cn=config does not \
exists or haven't been updated" not in cmd.stdout_text)
assert cmd.returncode == 0
def test_double_encoded_cacert(self):
"""Test for BZ 1644874
In old IPA version, the entry cn=CAcert,cn=ipa,cn=etc,$basedn
could contain a double-encoded cert, which leads to ipa-server-upgrade
failure.
Force a double-encoded value then call upgrade to check the fix.
"""
# Read the current entry from LDAP
ldap = self.master.ldap_connect()
basedn = self.master.domain.basedn
dn = DN(('cn', 'CAcert'), ('cn', 'ipa'), ('cn', 'etc'), basedn)
entry = ldap.get_entry(dn) # pylint: disable=no-member
# Extract the certificate as DER then double-encode
cacert = entry['cacertificate;binary'][0]
cacert_der = cacert.public_bytes(serialization.Encoding.DER)
cacert_b64 = base64.b64encode(cacert_der)
# overwrite the value with double-encoded cert
entry.single_value['cACertificate;binary'] = cacert_b64
ldap.update_entry(entry) # pylint: disable=no-member
# try the upgrade
self.master.run_command(['ipa-server-upgrade'])
# reconnect to the master (upgrade stops 389-ds)
ldap = self.master.ldap_connect()
# read the value after upgrade, should be fixed
entry = ldap.get_entry(dn) # pylint: disable=no-member
try:
_cacert = entry['cacertificate;binary']
except ValueError:
raise AssertionError('%s contains a double-encoded cert'
% entry.dn)
def get_named_confs(self):
named_conf = self.master.get_file_contents(
paths.NAMED_CONF, encoding="utf-8"
)
print(named_conf)
custom_conf = self.master.get_file_contents(
paths.NAMED_CUSTOM_CONF, encoding="utf-8"
)
print(custom_conf)
opt_conf = self.master.get_file_contents(
paths.NAMED_CUSTOM_OPTIONS_CONF, encoding="utf-8"
)
print(opt_conf)
return named_conf, custom_conf, opt_conf
@pytest.mark.skip_if_platform(
"debian", reason="Debian does not use crypto policy"
)
def test_named_conf_crypto_policy(self):
named_conf = self.master.get_file_contents(
paths.NAMED_CONF, encoding="utf-8"
)
assert paths.NAMED_CRYPTO_POLICY_FILE in named_conf
def test_current_named_conf(self):
named_conf, custom_conf, opt_conf = self.get_named_confs()
# verify that both includes are present exactly one time
inc_opt_conf = f'include "{paths.NAMED_CUSTOM_OPTIONS_CONF}";'
assert named_conf.count(inc_opt_conf) == 1
inc_custom_conf = f'include "{paths.NAMED_CUSTOM_CONF}";'
assert named_conf.count(inc_custom_conf) == 1
assert "dnssec-validation yes;" in opt_conf
assert "dnssec-validation" not in named_conf
assert custom_conf
def test_update_named_conf_simple(self):
# remove files to force a migration
self.master.run_command(
[
"rm",
"-f",
paths.NAMED_CUSTOM_CONF,
paths.NAMED_CUSTOM_OPTIONS_CONF,
]
)
self.master.run_command(['ipa-server-upgrade'])
named_conf, custom_conf, opt_conf = self.get_named_confs()
# not empty
assert custom_conf.strip()
# has dnssec-validation enabled in option config
assert "dnssec-validation yes;" in opt_conf
assert "dnssec-validation" not in named_conf
# verify that both includes are present exactly one time
inc_opt_conf = f'include "{paths.NAMED_CUSTOM_OPTIONS_CONF}";'
assert named_conf.count(inc_opt_conf) == 1
inc_custom_conf = f'include "{paths.NAMED_CUSTOM_CONF}";'
assert named_conf.count(inc_custom_conf) == 1
def test_update_named_conf_old(self):
# remove files to force a migration
self.master.run_command(
[
"rm",
"-f",
paths.NAMED_CUSTOM_CONF,
paths.NAMED_CUSTOM_OPTIONS_CONF,
]
)
# dump an old named conf to verify migration
old_contents = named_test_template(self.master)
self.master.put_file_contents(paths.NAMED_CONF, old_contents)
clear_sysupgrade(self.master, "dns", "named.conf")
# check
self.master.run_command(["named-checkconf", paths.NAMED_CONF])
# upgrade
self.master.run_command(['ipa-server-upgrade'])
named_conf, custom_conf, opt_conf = self.get_named_confs()
# not empty
assert custom_conf.strip()
# dnssec-validation is migrated as "disabled" from named.conf
assert "dnssec-validation no;" in opt_conf
assert "dnssec-validation" not in named_conf
# verify that both includes are present exactly one time
inc_opt_conf = f'include "{paths.NAMED_CUSTOM_OPTIONS_CONF}";'
assert named_conf.count(inc_opt_conf) == 1
inc_custom_conf = f'include "{paths.NAMED_CUSTOM_CONF}";'
assert named_conf.count(inc_custom_conf) == 1
def test_admin_root_alias_upgrade_CVE_2020_10747(self):
# Test upgrade for CVE-2020-10747 fix
# https://bugzilla.redhat.com/show_bug.cgi?id=1810160
rootprinc = "root@{}".format(self.master.domain.realm)
self.master.run_command(
["ipa", "user-remove-principal", "admin", rootprinc]
)
result = self.master.run_command(["ipa", "user-show", "admin"])
assert rootprinc not in result.stdout_text
self.master.run_command(['ipa-server-upgrade'])
result = self.master.run_command(["ipa", "user-show", "admin"])
assert rootprinc in result.stdout_text
def test_pwpolicy_upgrade(self):
"""Test that ipapwdpolicy objectclass is added to all policies"""
entry_ldif = textwrap.dedent("""
dn: cn=global_policy,cn={realm},cn=kerberos,{base_dn}
changetype: modify
delete: objectclass
objectclass: ipapwdpolicy
""").format(
base_dn=str(self.master.domain.basedn),
realm=self.master.domain.realm)
tasks.ldapmodify_dm(self.master, entry_ldif)
tasks.kinit_admin(self.master)
self.master.run_command(['ipa-server-upgrade'])
result = self.master.run_command(["ipa", "pwpolicy-find"])
# if it is still missing the oc it won't be displayed
assert 'global_policy' in result.stdout_text
def test_kra_detection(self):
"""Test that ipa-server-upgrade correctly detects KRA presence
Test for https://pagure.io/freeipa/issue/8596
When the directory /var/lib/pki/pki-tomcat/kra/ exists, the upgrade
wrongly assumes that KRA component is installed and crashes.
The test creates an empty dir and calls ipa-server-upgrade
to make sure that KRA detection is not based on the directory
presence.
"""
# Skip test if pki 10.10.0 is installed
# because of https://github.com/dogtagpki/pki/issues/3397
# pki fails to start if empty dir /var/lib/pki/pki-tomcat/kra exists
if tasks.get_pki_version(self.master) == tasks.parse_version('10.10.0'):
pytest.skip("Skip test with pki 10.10.0")
kra_path = os.path.join(paths.VAR_LIB_PKI_TOMCAT_DIR, "kra")
try:
self.master.run_command(["mkdir", "-p", kra_path])
result = self.master.run_command(['ipa-server-upgrade'])
err_msg = 'Upgrade failed with no such entry'
assert err_msg not in result.stderr_text
finally:
self.master.run_command(["rmdir", kra_path])