samba-mirror/source4/setup/provision

#!/usr/bin/env python
#
# Unix SMB/CIFS implementation.
# provision a Samba4 server
# Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2007-2008
# Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008
#
# Based on the original in EJS:
# Copyright (C) Andrew Tridgell 2005
#
# 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/>.
#

import logging
import optparse
import sys
import tempfile

# Find right directory when running from source tree
sys.path.insert(0, "bin/python")

import samba
import samba.ntacls
import os
from samba.credentials import DONT_USE_KERBEROS
from samba.auth import system_session
import samba.getopt as options
from samba.provision import (
    provision,
    FILL_FULL,
    FILL_NT4SYNC,
    FILL_DRS,
    ProvisioningError,
    )
from samba.dsdb import (
    DS_DOMAIN_FUNCTION_2000,
    DS_DOMAIN_FUNCTION_2003,
    DS_DOMAIN_FUNCTION_2008,
    DS_DOMAIN_FUNCTION_2008_R2,
    )

# how do we make this case insensitive??

parser = optparse.OptionParser("provision [options]")
sambaopts = options.SambaOptions(parser)
parser.add_option_group(sambaopts)
parser.add_option_group(options.VersionOptions(parser))
credopts = options.CredentialsOptions(parser)
parser.add_option_group(credopts)
parser.add_option("--interactive", help="Ask for names", action="store_true")
parser.add_option("--domain", type="string", metavar="DOMAIN",
                  help="set domain")
parser.add_option("--domain-guid", type="string", metavar="GUID",
        help="set domainguid (otherwise random)")
parser.add_option("--domain-sid", type="string", metavar="SID",
        help="set domainsid (otherwise random)")
parser.add_option("--ntds-guid", type="string", metavar="GUID",
          help="set NTDS object GUID (otherwise random)")
parser.add_option("--invocationid", type="string", metavar="GUID",
          help="set invocationid (otherwise random)")
parser.add_option("--host-name", type="string", metavar="HOSTNAME",
        help="set hostname")
parser.add_option("--host-ip", type="string", metavar="IPADDRESS",
        help="set IPv4 ipaddress")
parser.add_option("--host-ip6", type="string", metavar="IP6ADDRESS",
        help="set IPv6 ipaddress")
parser.add_option("--adminpass", type="string", metavar="PASSWORD",
        help="choose admin password (otherwise random)")
parser.add_option("--krbtgtpass", type="string", metavar="PASSWORD",
        help="choose krbtgt password (otherwise random)")
parser.add_option("--machinepass", type="string", metavar="PASSWORD",
        help="choose machine password (otherwise random)")
parser.add_option("--dns-backend", type="choice", metavar="NAMESERVER-BACKEND",
          choices=["SAMBA_INTERNAL", "BIND9_FLATFILE", "BIND9_DLZ", "NONE"],
        help="The DNS server backend. SAMBA_INTERNAL is the builtin name server, " \
             "BIND9_FLATFILE uses bind9 text database to store zone information (default), " \
             "BIND9_DLZ uses samba4 AD to store zone information, " \
             "NONE skips the DNS setup entirely (not recommended)")
parser.add_option("--dnspass", type="string", metavar="PASSWORD",
        help="choose dns password (otherwise random)")
parser.add_option("--ldapadminpass", type="string", metavar="PASSWORD",
        help="choose password to set between Samba and it's LDAP backend (otherwise random)")
parser.add_option("--root", type="string", metavar="USERNAME",
        help="choose 'root' unix username")
parser.add_option("--nobody", type="string", metavar="USERNAME",
        help="choose 'nobody' user")
parser.add_option("--wheel", type="string", metavar="GROUPNAME",
        help="choose 'wheel' privileged group")
parser.add_option("--users", type="string", metavar="GROUPNAME",
        help="choose 'users' group")
parser.add_option("--quiet", help="Be quiet", action="store_true")
parser.add_option("--blank", action="store_true",
        help="do not add users or groups, just the structure")
parser.add_option("--ldap-backend-type", type="choice", metavar="LDAP-BACKEND-TYPE",
        help="Test initialisation support for unsupported LDAP backend type (fedora-ds or openldap) DO NOT USE",
        choices=["fedora-ds", "openldap"])
parser.add_option("--server-role", type="choice", metavar="ROLE",
          choices=["domain controller", "dc", "member server", "member", "standalone"],
        help="The server role (domain controller | dc | member server | member | standalone). Default is dc.")
parser.add_option("--function-level", type="choice", metavar="FOR-FUN-LEVEL",
          choices=["2000", "2003", "2008", "2008_R2"],
        help="The domain and forest function level (2000 | 2003 | 2008 | 2008_R2 - always native). Default is (Windows) 2003 Native.")
parser.add_option("--next-rid", type="int", metavar="NEXTRID", default=1000,
        help="The initial nextRid value (only needed for upgrades).  Default is 1000.")
parser.add_option("--partitions-only",
        help="Configure Samba's partitions, but do not modify them (ie, join a BDC)", action="store_true")
parser.add_option("--targetdir", type="string", metavar="DIR",
                  help="Set target directory")
parser.add_option("--ol-mmr-urls", type="string", metavar="LDAPSERVER",
                help="List of LDAP-URLS [ ldap://<FQHN>:<PORT>/  (where <PORT> has to be different than 389!) ] separated with comma (\",\") for use with OpenLDAP-MMR (Multi-Master-Replication), e.g.: \"ldap://s4dc1:9000,ldap://s4dc2:9000\"")
parser.add_option("--slapd-path", type="string", metavar="SLAPD-PATH",
        help="Path to slapd for LDAP backend [e.g.:'/usr/local/libexec/slapd']. Required for Setup with LDAP-Backend. OpenLDAP Version >= 2.4.17 should be used.")
parser.add_option("--use-xattrs", type="choice", choices=["yes", "no", "auto"], help="Define if we should use the native fs capabilities or a tdb file for storing attributes likes ntacl, auto tries to make an inteligent guess based on the user rights and system capabilities", default="auto")

opts = parser.parse_args()[0]

logger = logging.getLogger("provision")
logger.addHandler(logging.StreamHandler(sys.stdout))
if opts.quiet:
    logger.setLevel(logging.WARNING)
else:
    logger.setLevel(logging.INFO)

if len(sys.argv) == 1:
    opts.interactive = True

if opts.interactive:
    from getpass import getpass
    import socket

    def ask(prompt, default=None):
        if default is not None:
            print "%s [%s]: " % (prompt, default),
        else:
            print "%s: " % (prompt,),
        return sys.stdin.readline().rstrip("\n") or default
    try:
        default = socket.getfqdn().split(".", 1)[1].upper()
    except IndexError:
        default = None
    opts.realm = ask("Realm", default)
    if opts.realm in (None, ""):
        print >>sys.stderr, "No realm set!"
        sys.exit(1)

    try:
        default = opts.realm.split(".")[0]
    except IndexError:
        default = None
    opts.domain = ask("Domain", default)
    if opts.domain is None:
        print >> sys.stderr, "No domain set!"
        sys.exit(1)

    opts.server_role = ask("Server Role (dc, member, standalone)", "dc")
    for i in range(3):
        opts.adminpass = getpass("Administrator password: ")
        if not opts.adminpass:
            print >>sys.stderr, "Invalid administrator password."
        else:
            break
else:
    if opts.realm in (None, ""):
        opts.realm = sambaopts._lp.get('realm')
    if opts.realm is None or opts.domain is None:
        if opts.realm is None:
            print >>sys.stderr, "No realm set!"
        if opts.domain is None:
            print >> sys.stderr, "No domain set!"
        parser.print_usage()
        sys.exit(1)

if not opts.adminpass:
    logger.info("Administrator password will be set randomly!")

lp = sambaopts.get_loadparm()
smbconf = lp.configfile

if opts.server_role == "dc":
    server_role = "domain controller"
elif opts.server_role == "member":
    server_role = "member server"
else:
    server_role = opts.server_role

if server_role is None:
    server_role = "domain controller"

if opts.function_level is None:
    dom_for_fun_level = DS_DOMAIN_FUNCTION_2003
elif opts.function_level == "2000":
    dom_for_fun_level = DS_DOMAIN_FUNCTION_2000
elif opts.function_level == "2003":
    dom_for_fun_level = DS_DOMAIN_FUNCTION_2003
elif opts.function_level == "2008":
    dom_for_fun_level = DS_DOMAIN_FUNCTION_2008
elif opts.function_level == "2008_R2":
    dom_for_fun_level = DS_DOMAIN_FUNCTION_2008_R2

if opts.dns_backend is None:
    dns_backend = "BIND9_FLATFILE"
else:
    dns_backend = opts.dns_backend

creds = credopts.get_credentials(lp)

creds.set_kerberos_state(DONT_USE_KERBEROS)

samdb_fill = FILL_FULL
if opts.blank:
    samdb_fill = FILL_NT4SYNC
elif opts.partitions_only:
    samdb_fill = FILL_DRS

eadb = True
if opts.use_xattrs == "yes":
    eadb = False
elif opts.use_xattrs == "auto" and not lp.get("posix:eadb"):
    if opts.targetdir:
        file = tempfile.NamedTemporaryFile(prefix=os.path.abspath(opts.targetdir))
    else:
        file = tempfile.NamedTemporaryFile(prefix=os.path.abspath(os.path.dirname(lp.get("private dir"))))
    try:
        samba.ntacls.setntacl(lp, file.name,
            "O:S-1-5-32G:S-1-5-32", "S-1-5-32", "native")
        eadb = False
    except:
        logger.info("You are not root or your system do not support xattr, using tdb backend for attributes. "
                "If you intend to use this provision in production, rerun the script as root on a system supporting xattrs.")
    file.close()

session = system_session()
try:
    provision(logger,
          session, creds, smbconf=smbconf, targetdir=opts.targetdir,
          samdb_fill=samdb_fill, realm=opts.realm, domain=opts.domain,
          domainguid=opts.domain_guid, domainsid=opts.domain_sid,
          hostname=opts.host_name,
          hostip=opts.host_ip, hostip6=opts.host_ip6,
          ntdsguid=opts.ntds_guid,
          invocationid=opts.invocationid, adminpass=opts.adminpass,
          krbtgtpass=opts.krbtgtpass, machinepass=opts.machinepass,
          dns_backend=dns_backend,
          dnspass=opts.dnspass, root=opts.root, nobody=opts.nobody,
          wheel=opts.wheel, users=opts.users,
          serverrole=server_role, dom_for_fun_level=dom_for_fun_level,
          backend_type=opts.ldap_backend_type,
          ldapadminpass=opts.ldapadminpass, ol_mmr_urls=opts.ol_mmr_urls,
          slapd_path=opts.slapd_path, 
          useeadb=eadb, next_rid=opts.next_rid, lp=lp)
except ProvisioningError, e:
    print str(e)
    sys.exit(1)