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#!/usr/bin/env python
# vim: expandtab ft=python
#
# Unix SMB/CIFS implementation.
# Test validity of smb.conf
# Copyright (C) Karl Auer 1993, 1994-1998
#
# Extensively modified by Andrew Tridgell, 1995
# Converted to popt by Jelmer Vernooij (jelmer@nl.linux.org), 2002
# Updated for Samba4 by Andrew Bartlett <abartlet@samba.org> 2006
# Converted to Python by Jelmer Vernooij <jelmer@samba.org> 2010
#
# 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 3 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/>.
#
# Testbed for loadparm.c/params.c
#
# This module simply loads a specified configuration file and
# if successful, dumps it's contents to stdout. Note that the
# operation is performed with DEBUGLEVEL at 3.
#
# Useful for a quick 'syntax check' of a configuration file.
#
import logging
import optparse
import os
import sys
# Find right directory when running from source tree
sys.path.insert(0, "bin/python")
import samba
from samba import getopt as options
# Here we do a set of 'hard coded' checks for bad
# configuration settings.
def do_global_checks(lp, logger):
valid = True
netbios_name = lp.get("netbios name")
if not samba.valid_netbios_name(netbios_name):
logger.error("netbios name %s is not a valid netbios name",
netbios_name)
valid = False
workgroup = lp.get("workgroup")
if not samba.valid_netbios_name(workgroup):
logger.error("workgroup name %s is not a valid netbios name",
workgroup)
valid = False
lockdir = lp.get("lockdir")
if not os.path.isdir(lockdir):
logger.error("lock directory %s does not exist", lockdir)
valid = False
piddir = lp.get("pid directory")
if not os.path.isdir(piddir):
logger.error("pid directory %s does not exist", piddir)
valid = False
winbind_separator = lp.get("winbind separator")
if len(winbind_separator) != 1:
logger.error("the 'winbind separator' parameter must be a single "
"character.")
valid = False
if winbind_separator == '+':
logger.error("'winbind separator = +' might cause problems with group "
"membership.")
valid = False
return valid
def allow_access(deny_list, allow_list, cname, caddr):
raise NotImplementedError(allow_access)
def do_share_checks(lp, logger):
valid = True
for s in lp.services():
if len(s) > 12:
logger.warning("You have some share names that are longer than 12 "
"characters. These may not be accessible to some older "
"clients. (Eg. Windows9x, WindowsMe, and not listed in "
"smbclient in Samba 3.0.)")
break
for s in lp.services():
deny_list = lp.get("hosts deny", s)
allow_list = lp.get("hosts allow", s)
if deny_list:
for entry in deny_list:
if "*" in entry or "?" in entry:
logger.error("Invalid character (* or ?) in hosts deny "
"list (%s) for service %s.", entry, s)
valid = False
if allow_list:
for entry in allow_list:
if "*" in entry or "?" in entry:
logger.error("Invalid character (* or ?) in hosts allow "
"list (%s) for service %s.", entry, s)
valid = False
return valid
def check_client_access(lp, cname, caddr):
# this is totally ugly, a real `quick' hack
for s in lp.services():
if (allow_access(lp.get("hosts deny"), lp.get("hosts allow"), cname,
caddr) and
allow_access(lp.get("hosts deny", s), lp.get("hosts allow", s),
cname, caddr)):
logger.info("Allow connection from %s (%s) to %s", cname, caddr, s)
else:
logger.info("Deny connection from %s (%s) to %s", cname, caddr, s)
if __name__ == '__main__':
parser = optparse.OptionParser("testparm [OPTION...] [host-name] [host-ip]")
parser.add_option("--section-name", type="string", metavar="SECTION",
help="Limit testparm to a named section")
parser.add_option("--parameter-name", type="string", metavar="PARAMETER",
help="Limit testparm to a named parameter")
parser.add_option("--client-name", type="string", metavar="HOSTNAME",
help="Client DNS name for 'hosts allow' checking "
"(should match reverse lookup)")
parser.add_option("--client-ip", type="string", metavar="IP",
help="Client IP address for 'hosts allow' checking")
parser.add_option("--suppress-prompt", action="store_true", default=False,
help="Suppress prompt for enter")
parser.add_option("-v", "--verbose", action="store_true",
default=False, help="Show default options too")
parser.add_option_group(options.VersionOptions(parser))
# We need support for smb.conf macros before this will work again
parser.add_option("--server", type="string",
help="Set %%L macro to servername")
# These are harder to do with the new code structure
parser.add_option("--show-all-parameters", action="store_true",
default=False, help="Show the parameters, type, possible values")
sambaopts = options.SambaOptions(parser)
parser.add_option_group(sambaopts)
opts, args = parser.parse_args()
#
# if (show_all_parameters) {
# show_parameter_list()
# exit(0)
# }
if len(args) > 0:
cname = args[0]
else:
cname = None
if len(args) > 1:
caddr = args[1]
else:
caddr = None
if cname is not None and caddr is None:
print "Both a DNS name and an IP address are required for the host " \
"access check."
sys.exit(1)
# FIXME: We need support for smb.conf macros before this will work again
#
# if (new_local_machine) {
# set_local_machine_name(new_local_machine, True)
# }
lp = sambaopts.get_loadparm()
# We need this to force the output
samba.set_debug_level(2)
logger = logging.getLogger("testparm")
logger.addHandler(logging.StreamHandler(sys.stdout))
logger.info("Loaded smb config files from %s", lp.configfile)
logger.info("Loaded services file OK.")
valid = do_global_checks(lp, logger)
valid = valid and do_share_checks(lp, logger)
if cname is not None:
check_client_access(lp, cname, caddr)
else:
if opts.section_name is not None or opts.parameter_name is not None:
if opts.parameter_name is None:
lp[opts.section_name].dump(sys.stdout, lp.default_service,
opts.verbose)
else:
print lp.get(opts.parameter_name, opts.section_name)
else:
if not opts.suppress_prompt:
print "Press enter to see a dump of your service definitions\n"
sys.stdin.readline()
lp.dump(sys.stdout, opts.verbose)
if valid:
sys.exit(0)
else:
sys.exit(1)
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