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#!/usr/bin/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
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 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("--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 "ERROR: For 'hosts allow' check you must specify both a DNS name and an IP address.\n"
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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