/* msg.h * Header file for all msg-related functions. * * File begun on 2007-07-13 by RGerhards (extracted from syslogd.c) * * Copyright 2007 Rainer Gerhards and Adiscon GmbH. * * This file is part of rsyslog. * * Rsyslog 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. * * Rsyslog 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 Rsyslog. If not, see . * * A copy of the GPL can be found in the file "COPYING" in this distribution. */ #include "template.h" /* this is a quirk, but these two are too interdependant... */ #ifndef MSG_H_INCLUDED #define MSG_H_INCLUDED 1 #include #include "obj.h" #include "syslogd-types.h" #include "template.h" /* rgerhards 2004-11-08: The following structure represents a * syslog message. * * Important Note: * The message object is used for multiple purposes (once it * has been created). Once created, it actully is a read-only * object (though we do not specifically express this). In order * to avoid multiple copies of the same object, we use a * reference counter. This counter is set to 1 by the constructer * and increased by 1 with a call to MsgAddRef(). The destructor * checks the reference count. If it is more than 1, only the counter * will be decremented. If it is 1, however, the object is actually * destroyed. To make this work, it is vital that MsgAddRef() is * called each time a "copy" is stored somewhere. */ struct msg { BEGINobjInstance; /* Data to implement generic object - MUST be the first data element! */ pthread_mutexattr_t mutAttr; pthread_mutex_t mut; int iRefCount; /* reference counter (0 = unused) */ short bParseHOSTNAME; /* should the hostname be parsed from the message? */ /* background: the hostname is not present on "regular" messages * received via UNIX domain sockets from the same machine. However, * it is available when we have a forwarder (e.g. rfc3195d) using local * sockets. All in all, the parser would need parse templates, that would * resolve all these issues... rgerhards, 2005-10-06 */ flowControl_t flowCtlType; /**< type of flow control we can apply, for enqueueing, needs not to be persisted because once data has entered the queue, this property is no longer needed. */ short iSeverity; /* the severity 0..7 */ uchar *pszSeverity; /* severity as string... */ int iLenSeverity; /* ... and its length. */ uchar *pszSeverityStr; /* severity name... */ int iLenSeverityStr; /* ... and its length. */ short iFacility; /* Facility code 0 .. 23*/ uchar *pszFacility; /* Facility as string... */ int iLenFacility; /* ... and its length. */ uchar *pszFacilityStr; /* facility name... */ int iLenFacilityStr; /* ... and its length. */ uchar *pszPRI; /* the PRI as a string */ int iLenPRI; /* and its length */ uchar *pszRawMsg; /* message as it was received on the * wire. This is important in case we * need to preserve cryptographic verifiers. */ int iLenRawMsg; /* length of raw message */ uchar *pszMSG; /* the MSG part itself */ int iLenMSG; /* Length of the MSG part */ uchar *pszUxTradMsg; /* the traditional UNIX message */ int iLenUxTradMsg;/* Length of the traditional UNIX message */ uchar *pszTAG; /* pointer to tag value */ int iLenTAG; /* Length of the TAG part */ uchar *pszHOSTNAME; /* HOSTNAME from syslog message */ int iLenHOSTNAME; /* Length of HOSTNAME */ uchar *pszRcvFrom; /* System message was received from */ int iLenRcvFrom; /* Length of pszRcvFrom */ short iProtocolVersion;/* protocol version of message received 0 - legacy, 1 syslog-protocol) */ cstr_t *pCSProgName; /* the (BSD) program name */ cstr_t *pCSStrucData;/* STRUCTURED-DATA */ cstr_t *pCSAPPNAME; /* APP-NAME */ cstr_t *pCSPROCID; /* PROCID */ cstr_t *pCSMSGID; /* MSGID */ struct syslogTime tRcvdAt;/* time the message entered this program */ char *pszRcvdAt3164; /* time as RFC3164 formatted string (always 15 charcters) */ char *pszRcvdAt3339; /* time as RFC3164 formatted string (32 charcters at most) */ char *pszRcvdAt_MySQL; /* rcvdAt as MySQL formatted string (always 14 charcters) */ char *pszRcvdAt_PgSQL; /* rcvdAt as PgSQL formatted string (always 21 characters) */ struct syslogTime tTIMESTAMP;/* (parsed) value of the timestamp */ char *pszTIMESTAMP3164; /* TIMESTAMP as RFC3164 formatted string (always 15 charcters) */ char *pszTIMESTAMP3339; /* TIMESTAMP as RFC3339 formatted string (32 charcters at most) */ char *pszTIMESTAMP_MySQL;/* TIMESTAMP as MySQL formatted string (always 14 charcters) */ char *pszTIMESTAMP_PgSQL;/* TIMESTAMP as PgSQL formatted string (always 21 characters) */ int msgFlags; /* flags associated with this message */ }; typedef struct msg msg_t; /* new name */ /* function prototypes */ PROTOTYPEObjClassInit(msg); char* getProgramName(msg_t*); rsRetVal msgConstruct(msg_t **ppThis); rsRetVal msgDestruct(msg_t **ppM); msg_t* MsgDup(msg_t* pOld); msg_t *MsgAddRef(msg_t *pM); void setProtocolVersion(msg_t *pM, int iNewVersion); int getProtocolVersion(msg_t *pM); char *getProtocolVersionString(msg_t *pM); int getMSGLen(msg_t *pM); char *getRawMsg(msg_t *pM); char *getUxTradMsg(msg_t *pM); char *getMSG(msg_t *pM); char *getPRI(msg_t *pM); int getPRIi(msg_t *pM); char *getTimeReported(msg_t *pM, enum tplFormatTypes eFmt); char *getTimeGenerated(msg_t *pM, enum tplFormatTypes eFmt); char *getSeverity(msg_t *pM); char *getSeverityStr(msg_t *pM); char *getFacility(msg_t *pM); char *getFacilityStr(msg_t *pM); rsRetVal MsgSetAPPNAME(msg_t *pMsg, char* pszAPPNAME); char *getAPPNAME(msg_t *pM); rsRetVal MsgSetPROCID(msg_t *pMsg, char* pszPROCID); int getPROCIDLen(msg_t *pM); char *getPROCID(msg_t *pM); rsRetVal MsgSetMSGID(msg_t *pMsg, char* pszMSGID); void MsgAssignTAG(msg_t *pMsg, uchar *pBuf); void MsgSetTAG(msg_t *pMsg, char* pszTAG); rsRetVal MsgSetFlowControlType(msg_t *pMsg, flowControl_t eFlowCtl); char *getTAG(msg_t *pM); int getHOSTNAMELen(msg_t *pM); char *getHOSTNAME(msg_t *pM); char *getRcvFrom(msg_t *pM); rsRetVal MsgSetStructuredData(msg_t *pMsg, char* pszStrucData); char *getStructuredData(msg_t *pM); int getProgramNameLen(msg_t *pM); char *getProgramName(msg_t *pM); void MsgSetRcvFrom(msg_t *pMsg, char* pszRcvFrom); void MsgAssignHOSTNAME(msg_t *pMsg, char *pBuf); void MsgSetHOSTNAME(msg_t *pMsg, char* pszHOSTNAME); int MsgSetUxTradMsg(msg_t *pMsg, char* pszUxTradMsg); void MsgSetMSG(msg_t *pMsg, char* pszMSG); void MsgSetRawMsg(msg_t *pMsg, char* pszRawMsg); void moveHOSTNAMEtoTAG(msg_t *pM); char *getMSGID(msg_t *pM); char *MsgGetProp(msg_t *pMsg, struct templateEntry *pTpe, cstr_t *pCSPropName, unsigned short *pbMustBeFreed); char *textpri(char *pRes, size_t pResLen, int pri); rsRetVal msgGetMsgVar(msg_t *pThis, cstr_t *pstrPropName, var_t **ppVar); rsRetVal MsgEnableThreadSafety(void); /* The MsgPrepareEnqueue() function is a macro for performance reasons. * It needs one global variable to work. This is acceptable, as it gains * us quite some performance and is fully abstracted using this header file. * The important thing is that no other module is permitted to actually * access that global variable! -- rgerhards, 2008-01-05 */ extern void (*funcMsgPrepareEnqueue)(msg_t *pMsg); #define MsgPrepareEnqueue(pMsg) funcMsgPrepareEnqueue(pMsg) #endif /* #ifndef MSG_H_INCLUDED */ /* * vi:set ai: */ ='n137' href='#n137'>137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 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1225 
# python join code
# Copyright Andrew Tridgell 2010
# Copyright Andrew Bartlett 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/>.
#

"""Joining a domain."""

from samba.auth import system_session
from samba.samdb import SamDB
from samba import gensec, Ldb, drs_utils
import ldb, samba, sys, uuid
from samba.ndr import ndr_pack
from samba.dcerpc import security, drsuapi, misc, nbt, lsa, drsblobs
from samba.dsdb import DS_DOMAIN_FUNCTION_2003
from samba.credentials import Credentials, DONT_USE_KERBEROS
from samba.provision import secretsdb_self_join, provision, provision_fill, FILL_DRS, FILL_SUBDOMAIN
from samba.provision.common import setup_path
from samba.schema import Schema
from samba.net import Net
from samba.provision.sambadns import setup_bind9_dns
from samba import read_and_sub_file
from base64 import b64encode
import logging
import talloc
import random
import time

# this makes debugging easier
talloc.enable_null_tracking()

class DCJoinException(Exception):

    def __init__(self, msg):
        super(DCJoinException, self).__init__("Can't join, error: %s" % msg)


class dc_join(object):
    """Perform a DC join."""

    def __init__(ctx, logger=None, server=None, creds=None, lp=None, site=None,
                 netbios_name=None, targetdir=None, domain=None,
                 machinepass=None, use_ntvfs=False, dns_backend=None,
                 promote_existing=False):
        ctx.logger = logger
        ctx.creds = creds
        ctx.lp = lp
        ctx.site = site
        ctx.netbios_name = netbios_name
        ctx.targetdir = targetdir
        ctx.use_ntvfs = use_ntvfs

        ctx.promote_existing = promote_existing
        ctx.promote_from_dn = None

        ctx.nc_list = []

        ctx.creds.set_gensec_features(creds.get_gensec_features() | gensec.FEATURE_SEAL)
        ctx.net = Net(creds=ctx.creds, lp=ctx.lp)

        if server is not None:
            ctx.server = server
        else:
            ctx.logger.info("Finding a writeable DC for domain '%s'" % domain)
            ctx.server = ctx.find_dc(domain)
            ctx.logger.info("Found DC %s" % ctx.server)

        ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
                          session_info=system_session(),
                          credentials=ctx.creds, lp=ctx.lp)

        try:
            ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL, attrs=["dn"])
        except ldb.LdbError, (enum, estr):
            raise DCJoinException(estr)


        ctx.myname = netbios_name
        ctx.samname = "%s$" % ctx.myname
        ctx.base_dn = str(ctx.samdb.get_default_basedn())
        ctx.root_dn = str(ctx.samdb.get_root_basedn())
        ctx.schema_dn = str(ctx.samdb.get_schema_basedn())
        ctx.config_dn = str(ctx.samdb.get_config_basedn())
        ctx.domsid = ctx.samdb.get_domain_sid()
        ctx.domain_name = ctx.get_domain_name()
        ctx.forest_domain_name = ctx.get_forest_domain_name()
        ctx.invocation_id = misc.GUID(str(uuid.uuid4()))

        ctx.dc_ntds_dn = ctx.samdb.get_dsServiceName()
        ctx.dc_dnsHostName = ctx.get_dnsHostName()
        ctx.behavior_version = ctx.get_behavior_version()

        if machinepass is not None:
            ctx.acct_pass = machinepass
        else:
            ctx.acct_pass = samba.generate_random_password(32, 40)

        # work out the DNs of all the objects we will be adding
        ctx.server_dn = "CN=%s,CN=Servers,CN=%s,CN=Sites,%s" % (ctx.myname, ctx.site, ctx.config_dn)
        ctx.ntds_dn = "CN=NTDS Settings,%s" % ctx.server_dn
        topology_base = "CN=Topology,CN=Domain System Volume,CN=DFSR-GlobalSettings,CN=System,%s" % ctx.base_dn
        if ctx.dn_exists(topology_base):
            ctx.topology_dn = "CN=%s,%s" % (ctx.myname, topology_base)
        else:
            ctx.topology_dn = None

        ctx.dnsdomain = ctx.samdb.domain_dns_name()
        ctx.dnsforest = ctx.samdb.forest_dns_name()
        ctx.domaindns_zone = 'DC=DomainDnsZones,%s' % ctx.base_dn
        ctx.forestdns_zone = 'DC=ForestDnsZones,%s' % ctx.root_dn

        res_domaindns = ctx.samdb.search(scope=ldb.SCOPE_ONELEVEL,
                                         attrs=[],
                                         base=ctx.samdb.get_partitions_dn(),
                                         expression="(&(objectClass=crossRef)(ncName=%s))" % ctx.domaindns_zone)
        if dns_backend is None:
            ctx.dns_backend = "NONE"
        else:
            if len(res_domaindns) == 0:
                ctx.dns_backend = "NONE"
                print "NO DNS zone information found in source domain, not replicating DNS"
            else:
                ctx.dns_backend = dns_backend

        ctx.dnshostname = "%s.%s" % (ctx.myname, ctx.dnsdomain)

        ctx.realm = ctx.dnsdomain

        ctx.acct_dn = "CN=%s,OU=Domain Controllers,%s" % (ctx.myname, ctx.base_dn)

        ctx.tmp_samdb = None

        ctx.SPNs = [ "HOST/%s" % ctx.myname,
                     "HOST/%s" % ctx.dnshostname,
                     "GC/%s/%s" % (ctx.dnshostname, ctx.dnsforest) ]

        # these elements are optional
        ctx.never_reveal_sid = None
        ctx.reveal_sid = None
        ctx.connection_dn = None
        ctx.RODC = False
        ctx.krbtgt_dn = None
        ctx.drsuapi = None
        ctx.managedby = None
        ctx.subdomain = False
        ctx.adminpass = None

    def del_noerror(ctx, dn, recursive=False):
        if recursive:
            try:
                res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_ONELEVEL, attrs=["dn"])
            except Exception:
                return
            for r in res:
                ctx.del_noerror(r.dn, recursive=True)
        try:
            ctx.samdb.delete(dn)
            print "Deleted %s" % dn
        except Exception:
            pass

    def cleanup_old_join(ctx):
        """Remove any DNs from a previous join."""
        try:
            # find the krbtgt link
            print("checking sAMAccountName")
            if ctx.subdomain:
                res = None
            else:
                res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
                                       expression='sAMAccountName=%s' % ldb.binary_encode(ctx.samname),
                                       attrs=["msDS-krbTgtLink"])
                if res:
                    ctx.del_noerror(res[0].dn, recursive=True)

                res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
                                       expression='(&(sAMAccountName=%s)(servicePrincipalName=%s))' % (ldb.binary_encode("dns-%s" % ctx.myname), ldb.binary_encode("dns/%s" % ctx.dnshostname)),
                                       attrs=[])
                if res:
                    ctx.del_noerror(res[0].dn, recursive=True)

                res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
                                       expression='(sAMAccountName=%s)' % ldb.binary_encode("dns-%s" % ctx.myname),
                                       attrs=[])
                if res:
                    raise RuntimeError("Not removing account %s which looks like a Samba DNS service account but does not have servicePrincipalName=%s" % (ldb.binary_encode("dns-%s" % ctx.myname), ldb.binary_encode("dns/%s" % ctx.dnshostname)))

            if ctx.connection_dn is not None:
                ctx.del_noerror(ctx.connection_dn)
            if ctx.krbtgt_dn is not None:
                ctx.del_noerror(ctx.krbtgt_dn)
            ctx.del_noerror(ctx.ntds_dn)
            ctx.del_noerror(ctx.server_dn, recursive=True)
            if ctx.topology_dn:
                ctx.del_noerror(ctx.topology_dn)
            if ctx.partition_dn:
                ctx.del_noerror(ctx.partition_dn)
            if res:
                ctx.new_krbtgt_dn = res[0]["msDS-Krbtgtlink"][0]
                ctx.del_noerror(ctx.new_krbtgt_dn)

            if ctx.subdomain:
                binding_options = "sign"
                lsaconn = lsa.lsarpc("ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
                                     ctx.lp, ctx.creds)

                objectAttr = lsa.ObjectAttribute()
                objectAttr.sec_qos = lsa.QosInfo()

                pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'),
                                                 objectAttr, security.SEC_FLAG_MAXIMUM_ALLOWED)

                name = lsa.String()
                name.string = ctx.realm
                info = lsaconn.QueryTrustedDomainInfoByName(pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)

                lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)

                name = lsa.String()
                name.string = ctx.forest_domain_name
                info = lsaconn.QueryTrustedDomainInfoByName(pol_handle, name, lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)

                lsaconn.DeleteTrustedDomain(pol_handle, info.info_ex.sid)

        except Exception:
            pass

    def promote_possible(ctx):
        """confirm that the account is just a bare NT4 BDC or a member server, so can be safely promoted"""
        if ctx.subdomain:
            # This shouldn't happen
            raise Exception("Can not promote into a subdomain")

        res = ctx.samdb.search(base=ctx.samdb.get_default_basedn(),
                               expression='sAMAccountName=%s' % ldb.binary_encode(ctx.samname),
                               attrs=["msDS-krbTgtLink", "userAccountControl", "serverReferenceBL", "rIDSetReferences"])
        if len(res) == 0:
            raise Exception("Could not find domain member account '%s' to promote to a DC, use 'samba-tool domain join' instead'" % ctx.samname)
        if "msDS-krbTgtLink" in res[0] or "serverReferenceBL" in res[0] or "rIDSetReferences" in res[0]:
            raise Exception("Account '%s' appears to be an active DC, use 'samba-tool domain join' if you must re-create this account" % ctx.samname)
        if (int(res[0]["userAccountControl"][0]) & (samba.dsdb.UF_WORKSTATION_TRUST_ACCOUNT|samba.dsdb.UF_SERVER_TRUST_ACCOUNT) == 0):
            raise Exception("Account %s is not a domain member or a bare NT4 BDC, use 'samba-tool domain join' instead'" % ctx.samname)

        ctx.promote_from_dn = res[0].dn


    def find_dc(ctx, domain):
        """find a writeable DC for the given domain"""
        try:
            ctx.cldap_ret = ctx.net.finddc(domain=domain, flags=nbt.NBT_SERVER_LDAP | nbt.NBT_SERVER_DS | nbt.NBT_SERVER_WRITABLE)
        except Exception:
            raise Exception("Failed to find a writeable DC for domain '%s'" % domain)
        if ctx.cldap_ret.client_site is not None and ctx.cldap_ret.client_site != "":
            ctx.site = ctx.cldap_ret.client_site
        return ctx.cldap_ret.pdc_dns_name


    def get_behavior_version(ctx):
        res = ctx.samdb.search(base=ctx.base_dn, scope=ldb.SCOPE_BASE, attrs=["msDS-Behavior-Version"])
        if "msDS-Behavior-Version" in res[0]:
            return int(res[0]["msDS-Behavior-Version"][0])
        else:
            return samba.dsdb.DS_DOMAIN_FUNCTION_2000

    def get_dnsHostName(ctx):
        res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["dnsHostName"])
        return res[0]["dnsHostName"][0]

    def get_domain_name(ctx):
        '''get netbios name of the domain from the partitions record'''
        partitions_dn = ctx.samdb.get_partitions_dn()
        res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
                               expression='ncName=%s' % ctx.samdb.get_default_basedn())
        return res[0]["nETBIOSName"][0]

    def get_forest_domain_name(ctx):
        '''get netbios name of the domain from the partitions record'''
        partitions_dn = ctx.samdb.get_partitions_dn()
        res = ctx.samdb.search(base=partitions_dn, scope=ldb.SCOPE_ONELEVEL, attrs=["nETBIOSName"],
                               expression='ncName=%s' % ctx.samdb.get_root_basedn())
        return res[0]["nETBIOSName"][0]

    def get_parent_partition_dn(ctx):
        '''get the parent domain partition DN from parent DNS name'''
        res = ctx.samdb.search(base=ctx.config_dn, attrs=[],
                               expression='(&(objectclass=crossRef)(dnsRoot=%s)(systemFlags:%s:=%u))' %
                               (ctx.parent_dnsdomain, ldb.OID_COMPARATOR_AND, samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN))
        return str(res[0].dn)

    def get_naming_master(ctx):
        '''get the parent domain partition DN from parent DNS name'''
        res = ctx.samdb.search(base='CN=Partitions,%s' % ctx.config_dn, attrs=['fSMORoleOwner'],
                               scope=ldb.SCOPE_BASE, controls=["extended_dn:1:1"])
        if not 'fSMORoleOwner' in res[0]:
            raise DCJoinException("Can't find naming master on partition DN %s in %s" % (ctx.partition_dn, ctx.samdb.url))
        try:
            master_guid = str(misc.GUID(ldb.Dn(ctx.samdb, res[0]['fSMORoleOwner'][0]).get_extended_component('GUID')))
        except KeyError:
            raise DCJoinException("Can't find GUID in naming master on partition DN %s" % res[0]['fSMORoleOwner'][0])

        master_host = '%s._msdcs.%s' % (master_guid, ctx.dnsforest)
        return master_host

    def get_mysid(ctx):
        '''get the SID of the connected user. Only works with w2k8 and later,
           so only used for RODC join'''
        res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=["tokenGroups"])
        binsid = res[0]["tokenGroups"][0]
        return ctx.samdb.schema_format_value("objectSID", binsid)

    def dn_exists(ctx, dn):
        '''check if a DN exists'''
        try:
            res = ctx.samdb.search(base=dn, scope=ldb.SCOPE_BASE, attrs=[])
        except ldb.LdbError, (enum, estr):
            if enum == ldb.ERR_NO_SUCH_OBJECT:
                return False
            raise
        return True

    def add_krbtgt_account(ctx):
        '''RODCs need a special krbtgt account'''
        print "Adding %s" % ctx.krbtgt_dn
        rec = {
            "dn" : ctx.krbtgt_dn,
            "objectclass" : "user",
            "useraccountcontrol" : str(samba.dsdb.UF_NORMAL_ACCOUNT |
                                       samba.dsdb.UF_ACCOUNTDISABLE),
            "showinadvancedviewonly" : "TRUE",
            "description" : "krbtgt for %s" % ctx.samname}
        ctx.samdb.add(rec, ["rodc_join:1:1"])

        # now we need to search for the samAccountName attribute on the krbtgt DN,
        # as this will have been magically set to the krbtgt number
        res = ctx.samdb.search(base=ctx.krbtgt_dn, scope=ldb.SCOPE_BASE, attrs=["samAccountName"])
        ctx.krbtgt_name = res[0]["samAccountName"][0]

        print "Got krbtgt_name=%s" % ctx.krbtgt_name

        m = ldb.Message()
        m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
        m["msDS-krbTgtLink"] = ldb.MessageElement(ctx.krbtgt_dn,
                                                  ldb.FLAG_MOD_REPLACE, "msDS-krbTgtLink")
        ctx.samdb.modify(m)

        ctx.new_krbtgt_dn = "CN=%s,CN=Users,%s" % (ctx.krbtgt_name, ctx.base_dn)
        print "Renaming %s to %s" % (ctx.krbtgt_dn, ctx.new_krbtgt_dn)
        ctx.samdb.rename(ctx.krbtgt_dn, ctx.new_krbtgt_dn)

    def drsuapi_connect(ctx):
        '''make a DRSUAPI connection to the naming master'''
        binding_options = "seal"
        if int(ctx.lp.get("log level")) >= 4:
            binding_options += ",print"
        binding_string = "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options)
        ctx.drsuapi = drsuapi.drsuapi(binding_string, ctx.lp, ctx.creds)
        (ctx.drsuapi_handle, ctx.bind_supported_extensions) = drs_utils.drs_DsBind(ctx.drsuapi)

    def create_tmp_samdb(ctx):
        '''create a temporary samdb object for schema queries'''
        ctx.tmp_schema = Schema(security.dom_sid(ctx.domsid),
                                schemadn=ctx.schema_dn)
        ctx.tmp_samdb = SamDB(session_info=system_session(), url=None, auto_connect=False,
                              credentials=ctx.creds, lp=ctx.lp, global_schema=False,
                              am_rodc=False)
        ctx.tmp_samdb.set_schema(ctx.tmp_schema)

    def build_DsReplicaAttribute(ctx, attrname, attrvalue):
        '''build a DsReplicaAttributeCtr object'''
        r = drsuapi.DsReplicaAttribute()
        r.attid = ctx.tmp_samdb.get_attid_from_lDAPDisplayName(attrname)
        r.value_ctr = 1


    def DsAddEntry(ctx, recs):
        '''add a record via the DRSUAPI DsAddEntry call'''
        if ctx.drsuapi is None:
            ctx.drsuapi_connect()
        if ctx.tmp_samdb is None:
            ctx.create_tmp_samdb()

        objects = []
        for rec in recs:
            id = drsuapi.DsReplicaObjectIdentifier()
            id.dn = rec['dn']

            attrs = []
            for a in rec:
                if a == 'dn':
                    continue
                if not isinstance(rec[a], list):
                    v = [rec[a]]
                else:
                    v = rec[a]
                rattr = ctx.tmp_samdb.dsdb_DsReplicaAttribute(ctx.tmp_samdb, a, v)
                attrs.append(rattr)

            attribute_ctr = drsuapi.DsReplicaAttributeCtr()
            attribute_ctr.num_attributes = len(attrs)
            attribute_ctr.attributes = attrs

            object = drsuapi.DsReplicaObject()
            object.identifier = id
            object.attribute_ctr = attribute_ctr

            list_object = drsuapi.DsReplicaObjectListItem()
            list_object.object = object
            objects.append(list_object)

        req2 = drsuapi.DsAddEntryRequest2()
        req2.first_object = objects[0]
        prev = req2.first_object
        for o in objects[1:]:
            prev.next_object = o
            prev = o

        (level, ctr) = ctx.drsuapi.DsAddEntry(ctx.drsuapi_handle, 2, req2)
        if level == 2:
            if ctr.dir_err != drsuapi.DRSUAPI_DIRERR_OK:
                print("DsAddEntry failed with dir_err %u" % ctr.dir_err)
                raise RuntimeError("DsAddEntry failed")
            if ctr.extended_err != (0, 'WERR_OK'):
                print("DsAddEntry failed with status %s info %s" % (ctr.extended_err))
                raise RuntimeError("DsAddEntry failed")
        if level == 3:
            if ctr.err_ver != 1:
                raise RuntimeError("expected err_ver 1, got %u" % ctr.err_ver)
            if ctr.err_data.status != (0, 'WERR_OK'):
                print("DsAddEntry failed with status %s info %s" % (ctr.err_data.status,
                                                                    ctr.err_data.info.extended_err))
                raise RuntimeError("DsAddEntry failed")
            if ctr.err_data.dir_err != drsuapi.DRSUAPI_DIRERR_OK:
                print("DsAddEntry failed with dir_err %u" % ctr.err_data.dir_err)
                raise RuntimeError("DsAddEntry failed")

        return ctr.objects

    def join_add_ntdsdsa(ctx):
        '''add the ntdsdsa object'''

        print "Adding %s" % ctx.ntds_dn
        rec = {
            "dn" : ctx.ntds_dn,
            "objectclass" : "nTDSDSA",
            "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
            "dMDLocation" : ctx.schema_dn}

        nc_list = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]

        if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
            rec["msDS-Behavior-Version"] = str(samba.dsdb.DS_DOMAIN_FUNCTION_2008_R2)

        if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
            rec["msDS-HasDomainNCs"] = ctx.base_dn

        if ctx.RODC:
            rec["objectCategory"] = "CN=NTDS-DSA-RO,%s" % ctx.schema_dn
            rec["msDS-HasFullReplicaNCs"] = ctx.nc_list
            rec["options"] = "37"
            ctx.samdb.add(rec, ["rodc_join:1:1"])
        else:
            rec["objectCategory"] = "CN=NTDS-DSA,%s" % ctx.schema_dn
            rec["HasMasterNCs"]      = nc_list
            if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
                rec["msDS-HasMasterNCs"] = ctx.nc_list
            rec["options"] = "1"
            rec["invocationId"] = ndr_pack(ctx.invocation_id)
            ctx.DsAddEntry([rec])

        # find the GUID of our NTDS DN
        res = ctx.samdb.search(base=ctx.ntds_dn, scope=ldb.SCOPE_BASE, attrs=["objectGUID"])
        ctx.ntds_guid = misc.GUID(ctx.samdb.schema_format_value("objectGUID", res[0]["objectGUID"][0]))

    def join_add_objects(ctx):
        '''add the various objects needed for the join'''
        if ctx.acct_dn:
            print "Adding %s" % ctx.acct_dn
            rec = {
                "dn" : ctx.acct_dn,
                "objectClass": "computer",
                "displayname": ctx.samname,
                "samaccountname" : ctx.samname,
                "userAccountControl" : str(ctx.userAccountControl | samba.dsdb.UF_ACCOUNTDISABLE),
                "dnshostname" : ctx.dnshostname}
            if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2008:
                rec['msDS-SupportedEncryptionTypes'] = str(samba.dsdb.ENC_ALL_TYPES)
            elif ctx.promote_existing:
                rec['msDS-SupportedEncryptionTypes'] = []
            if ctx.managedby:
                rec["managedby"] = ctx.managedby
            elif ctx.promote_existing:
                rec["managedby"] = []

            if ctx.never_reveal_sid:
                rec["msDS-NeverRevealGroup"] = ctx.never_reveal_sid
            elif ctx.promote_existing:
                rec["msDS-NeverRevealGroup"] = []

            if ctx.reveal_sid:
                rec["msDS-RevealOnDemandGroup"] = ctx.reveal_sid
            elif ctx.promote_existing:
                rec["msDS-RevealOnDemandGroup"] = []

            if ctx.promote_existing:
                if ctx.promote_from_dn != ctx.acct_dn:
                    ctx.samdb.rename(ctx.promote_from_dn, ctx.acct_dn)
                ctx.samdb.modify(ldb.Message.from_dict(ctx.samdb, rec, ldb.FLAG_MOD_REPLACE))
            else:
                ctx.samdb.add(rec)

        if ctx.krbtgt_dn:
            ctx.add_krbtgt_account()

        print "Adding %s" % ctx.server_dn
        rec = {
            "dn": ctx.server_dn,
            "objectclass" : "server",
            # windows uses 50000000 decimal for systemFlags. A windows hex/decimal mixup bug?
            "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_CONFIG_ALLOW_RENAME |
                                samba.dsdb.SYSTEM_FLAG_CONFIG_ALLOW_LIMITED_MOVE |
                                samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
            # windows seems to add the dnsHostName later
            "dnsHostName" : ctx.dnshostname}

        if ctx.acct_dn:
            rec["serverReference"] = ctx.acct_dn

        ctx.samdb.add(rec)

        if ctx.subdomain:
            # the rest is done after replication
            ctx.ntds_guid = None
            return

        ctx.join_add_ntdsdsa()

        if ctx.connection_dn is not None:
            print "Adding %s" % ctx.connection_dn
            rec = {
                "dn" : ctx.connection_dn,
                "objectclass" : "nTDSConnection",
                "enabledconnection" : "TRUE",
                "options" : "65",
                "fromServer" : ctx.dc_ntds_dn}
            ctx.samdb.add(rec)

        if ctx.acct_dn:
            print "Adding SPNs to %s" % ctx.acct_dn
            m = ldb.Message()
            m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
            for i in range(len(ctx.SPNs)):
                ctx.SPNs[i] = ctx.SPNs[i].replace("$NTDSGUID", str(ctx.ntds_guid))
            m["servicePrincipalName"] = ldb.MessageElement(ctx.SPNs,
                                                           ldb.FLAG_MOD_REPLACE,
                                                           "servicePrincipalName")
            ctx.samdb.modify(m)

            # The account password set operation should normally be done over
            # LDAP. Windows 2000 DCs however allow this only with SSL
            # connections which are hard to set up and otherwise refuse with
            # ERR_UNWILLING_TO_PERFORM. In this case we fall back to libnet
            # over SAMR.
            print "Setting account password for %s" % ctx.samname
            try:
                ctx.samdb.setpassword("(&(objectClass=user)(sAMAccountName=%s))"
                                      % ldb.binary_encode(ctx.samname),
                                      ctx.acct_pass,
                                      force_change_at_next_login=False,
                                      username=ctx.samname)
            except ldb.LdbError, (num, _):
                if num != ldb.ERR_UNWILLING_TO_PERFORM:
                    pass
                ctx.net.set_password(account_name=ctx.samname,
                                     domain_name=ctx.domain_name,
                                     newpassword=ctx.acct_pass)

            res = ctx.samdb.search(base=ctx.acct_dn, scope=ldb.SCOPE_BASE,
                                   attrs=["msDS-KeyVersionNumber"])
            if "msDS-KeyVersionNumber" in res[0]:
                ctx.key_version_number = int(res[0]["msDS-KeyVersionNumber"][0])
            else:
                ctx.key_version_number = None

            print("Enabling account")
            m = ldb.Message()
            m.dn = ldb.Dn(ctx.samdb, ctx.acct_dn)
            m["userAccountControl"] = ldb.MessageElement(str(ctx.userAccountControl),
                                                         ldb.FLAG_MOD_REPLACE,
                                                         "userAccountControl")
            ctx.samdb.modify(m)

        if ctx.dns_backend.startswith("BIND9_"):
            ctx.dnspass = samba.generate_random_password(128, 255)

            recs = ctx.samdb.parse_ldif(read_and_sub_file(setup_path("provision_dns_add_samba.ldif"),
                                                                {"DNSDOMAIN": ctx.dnsdomain,
                                                                 "DOMAINDN": ctx.base_dn,
                                                                 "HOSTNAME" : ctx.myname,
                                                                 "DNSPASS_B64": b64encode(ctx.dnspass),
                                                                 "DNSNAME" : ctx.dnshostname}))
            for changetype, msg in recs:
                assert changetype == ldb.CHANGETYPE_NONE
                dns_acct_dn = msg["dn"]
                print "Adding DNS account %s with dns/ SPN" % msg["dn"]

                # Remove dns password (we will set it as a modify, as we can't do clearTextPassword over LDAP)
                del msg["clearTextPassword"]
                # Remove isCriticalSystemObject for similar reasons, it cannot be set over LDAP
                del msg["isCriticalSystemObject"]
                # Disable account until password is set
                msg["userAccountControl"] = str(samba.dsdb.UF_NORMAL_ACCOUNT |
                                                samba.dsdb.UF_ACCOUNTDISABLE)
                try:
                    ctx.samdb.add(msg)
                except ldb.LdbError, (num, _):
                    if num != ldb.ERR_ENTRY_ALREADY_EXISTS:
                        raise

            # The account password set operation should normally be done over
            # LDAP. Windows 2000 DCs however allow this only with SSL
            # connections which are hard to set up and otherwise refuse with
            # ERR_UNWILLING_TO_PERFORM. In this case we fall back to libnet
            # over SAMR.
            print "Setting account password for dns-%s" % ctx.myname
            try:
                ctx.samdb.setpassword("(&(objectClass=user)(samAccountName=dns-%s))"
                                      % ldb.binary_encode(ctx.myname),
                                      ctx.dnspass,
                                      force_change_at_next_login=False,
                                      username=ctx.samname)
            except ldb.LdbError, (num, _):
                if num != ldb.ERR_UNWILLING_TO_PERFORM:
                    raise
                ctx.net.set_password(account_name="dns-%s" % ctx.myname,
                                     domain_name=ctx.domain_name,
                                     newpassword=ctx.dnspass)

            res = ctx.samdb.search(base=dns_acct_dn, scope=ldb.SCOPE_BASE,
                                   attrs=["msDS-KeyVersionNumber"])
            if "msDS-KeyVersionNumber" in res[0]:
                ctx.dns_key_version_number = int(res[0]["msDS-KeyVersionNumber"][0])
            else:
                ctx.dns_key_version_number = None

    def join_add_objects2(ctx):
        """add the various objects needed for the join, for subdomains post replication"""

        print "Adding %s" % ctx.partition_dn
        # NOTE: windows sends a ntSecurityDescriptor here, we
        # let it default
        rec = {
            "dn" : ctx.partition_dn,
            "objectclass" : "crossRef",
            "objectCategory" : "CN=Cross-Ref,%s" % ctx.schema_dn,
            "nCName" : ctx.base_dn,
            "nETBIOSName" : ctx.domain_name,
            "dnsRoot": ctx.dnsdomain,
            "trustParent" : ctx.parent_partition_dn,
            "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_CR_NTDS_NC|samba.dsdb.SYSTEM_FLAG_CR_NTDS_DOMAIN)}
        if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
            rec["msDS-Behavior-Version"] = str(ctx.behavior_version)

        rec2 = {
            "dn" : ctx.ntds_dn,
            "objectclass" : "nTDSDSA",
            "systemFlags" : str(samba.dsdb.SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE),
            "dMDLocation" : ctx.schema_dn}

        nc_list = [ ctx.base_dn, ctx.config_dn, ctx.schema_dn ]

        if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
            rec2["msDS-Behavior-Version"] = str(ctx.behavior_version)

        if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
            rec2["msDS-HasDomainNCs"] = ctx.base_dn

        rec2["objectCategory"] = "CN=NTDS-DSA,%s" % ctx.schema_dn
        rec2["HasMasterNCs"]      = nc_list
        if ctx.behavior_version >= samba.dsdb.DS_DOMAIN_FUNCTION_2003:
            rec2["msDS-HasMasterNCs"] = ctx.nc_list
        rec2["options"] = "1"
        rec2["invocationId"] = ndr_pack(ctx.invocation_id)

        objects = ctx.DsAddEntry([rec, rec2])
        if len(objects) != 2:
            raise DCJoinException("Expected 2 objects from DsAddEntry")

        ctx.ntds_guid = objects[1].guid

        print("Replicating partition DN")
        ctx.repl.replicate(ctx.partition_dn,
                           misc.GUID("00000000-0000-0000-0000-000000000000"),
                           ctx.ntds_guid,
                           exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
                           replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)

        print("Replicating NTDS DN")
        ctx.repl.replicate(ctx.ntds_dn,
                           misc.GUID("00000000-0000-0000-0000-000000000000"),
                           ctx.ntds_guid,
                           exop=drsuapi.DRSUAPI_EXOP_REPL_OBJ,
                           replica_flags=drsuapi.DRSUAPI_DRS_WRIT_REP)

    def join_provision(ctx):
        """Provision the local SAM."""

        print "Calling bare provision"

        smbconf = ctx.lp.configfile

        presult = provision(ctx.logger, system_session(), smbconf=smbconf,
                targetdir=ctx.targetdir, samdb_fill=FILL_DRS, realm=ctx.realm,
                rootdn=ctx.root_dn, domaindn=ctx.base_dn,
                schemadn=ctx.schema_dn, configdn=ctx.config_dn,
                serverdn=ctx.server_dn, domain=ctx.domain_name,
                hostname=ctx.myname, domainsid=ctx.domsid,
                machinepass=ctx.acct_pass, serverrole="active directory domain controller",
                sitename=ctx.site, lp=ctx.lp, ntdsguid=ctx.ntds_guid,
                use_ntvfs=ctx.use_ntvfs, dns_backend=ctx.dns_backend)
        print "Provision OK for domain DN %s" % presult.domaindn
        ctx.local_samdb = presult.samdb
        ctx.lp          = presult.lp
        ctx.paths       = presult.paths
        ctx.names       = presult.names

    def join_provision_own_domain(ctx):
        """Provision the local SAM."""

        # we now operate exclusively on the local database, which
        # we need to reopen in order to get the newly created schema
        print("Reconnecting to local samdb")
        ctx.samdb = SamDB(url=ctx.local_samdb.url,
                          session_info=system_session(),
                          lp=ctx.local_samdb.lp,
                          global_schema=False)
        ctx.samdb.set_invocation_id(str(ctx.invocation_id))
        ctx.local_samdb = ctx.samdb

        ctx.logger.info("Finding domain GUID from ncName")
        res = ctx.local_samdb.search(base=ctx.partition_dn, scope=ldb.SCOPE_BASE, attrs=['ncName'],
                                     controls=["extended_dn:1:1", "reveal_internals:0"])

        if 'nCName' not in res[0]:
            raise DCJoinException("Can't find naming context on partition DN %s in %s" % (ctx.partition_dn, ctx.samdb.url))

        try:
            domguid = str(misc.GUID(ldb.Dn(ctx.samdb, res[0]['ncName'][0]).get_extended_component('GUID')))
        except KeyError:
            raise DCJoinException("Can't find GUID in naming master on partition DN %s" % res[0]['ncName'][0])

        ctx.logger.info("Got domain GUID %s" % domguid)

        ctx.logger.info("Calling own domain provision")

        secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)

        presult = provision_fill(ctx.local_samdb, secrets_ldb,
                                 ctx.logger, ctx.names, ctx.paths, domainsid=security.dom_sid(ctx.domsid),
                                 domainguid=domguid,
                                 dom_for_fun_level=DS_DOMAIN_FUNCTION_2003,
                                 targetdir=ctx.targetdir, samdb_fill=FILL_SUBDOMAIN,
                                 machinepass=ctx.acct_pass, serverrole="active directory domain controller",
                                 lp=ctx.lp, hostip=ctx.names.hostip, hostip6=ctx.names.hostip6,
                                 dns_backend=ctx.dns_backend, adminpass=ctx.adminpass)
        print("Provision OK for domain %s" % ctx.names.dnsdomain)

    def join_replicate(ctx):
        """Replicate the SAM."""

        print "Starting replication"
        ctx.local_samdb.transaction_start()
        try:
            source_dsa_invocation_id = misc.GUID(ctx.samdb.get_invocation_id())
            if ctx.ntds_guid is None:
                print("Using DS_BIND_GUID_W2K3")
                destination_dsa_guid = misc.GUID(drsuapi.DRSUAPI_DS_BIND_GUID_W2K3)
            else:
                destination_dsa_guid = ctx.ntds_guid

            if ctx.RODC:
                repl_creds = Credentials()
                repl_creds.guess(ctx.lp)
                repl_creds.set_kerberos_state(DONT_USE_KERBEROS)
                repl_creds.set_username(ctx.samname)
                repl_creds.set_password(ctx.acct_pass)
            else:
                repl_creds = ctx.creds

            binding_options = "seal"
            if int(ctx.lp.get("log level")) >= 5:
                binding_options += ",print"
            repl = drs_utils.drs_Replicate(
                "ncacn_ip_tcp:%s[%s]" % (ctx.server, binding_options),
                ctx.lp, repl_creds, ctx.local_samdb, ctx.invocation_id)

            repl.replicate(ctx.schema_dn, source_dsa_invocation_id,
                    destination_dsa_guid, schema=True, rodc=ctx.RODC,
                    replica_flags=ctx.replica_flags)
            repl.replicate(ctx.config_dn, source_dsa_invocation_id,
                    destination_dsa_guid, rodc=ctx.RODC,
                    replica_flags=ctx.replica_flags)
            if not ctx.subdomain:
                # Replicate first the critical object for the basedn
                if not ctx.domain_replica_flags & drsuapi.DRSUAPI_DRS_CRITICAL_ONLY:
                    print "Replicating critical objects from the base DN of the domain"
                    ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY | drsuapi.DRSUAPI_DRS_GET_ANC
                    repl.replicate(ctx.base_dn, source_dsa_invocation_id,
                                destination_dsa_guid, rodc=ctx.RODC,
                                replica_flags=ctx.domain_replica_flags)
                    ctx.domain_replica_flags ^= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY | drsuapi.DRSUAPI_DRS_GET_ANC
                else:
                    ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_GET_ANC
                repl.replicate(ctx.base_dn, source_dsa_invocation_id,
                               destination_dsa_guid, rodc=ctx.RODC,
                               replica_flags=ctx.domain_replica_flags)
            print "Done with always replicated NC (base, config, schema)"

            for nc in (ctx.domaindns_zone, ctx.forestdns_zone):
                if nc in ctx.nc_list:
                    print "Replicating %s" % (str(nc))
                    repl.replicate(nc, source_dsa_invocation_id,
                                    destination_dsa_guid, rodc=ctx.RODC,
                                    replica_flags=ctx.replica_flags)

            # FIXME At this point we should add an entry in the forestdns and domaindns NC
            # (those under CN=Partions,DC=...)
            # in order to indicate that we hold a replica for this NC

            if ctx.RODC:
                repl.replicate(ctx.acct_dn, source_dsa_invocation_id,
                        destination_dsa_guid,
                        exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
                repl.replicate(ctx.new_krbtgt_dn, source_dsa_invocation_id,
                        destination_dsa_guid,
                        exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET, rodc=True)
            ctx.repl = repl
            ctx.source_dsa_invocation_id = source_dsa_invocation_id
            ctx.destination_dsa_guid = destination_dsa_guid

            print "Committing SAM database"
        except:
            ctx.local_samdb.transaction_cancel()
            raise
        else:
            ctx.local_samdb.transaction_commit()

    def send_DsReplicaUpdateRefs(ctx, dn):
        r = drsuapi.DsReplicaUpdateRefsRequest1()
        r.naming_context = drsuapi.DsReplicaObjectIdentifier()
        r.naming_context.dn = str(dn)
        r.naming_context.guid = misc.GUID("00000000-0000-0000-0000-000000000000")
        r.naming_context.sid = security.dom_sid("S-0-0")
        r.dest_dsa_guid = ctx.ntds_guid
        r.dest_dsa_dns_name = "%s._msdcs.%s" % (str(ctx.ntds_guid), ctx.dnsforest)
        r.options = drsuapi.DRSUAPI_DRS_ADD_REF | drsuapi.DRSUAPI_DRS_DEL_REF
        if not ctx.RODC:
            r.options |= drsuapi.DRSUAPI_DRS_WRIT_REP

        if ctx.drsuapi:
            ctx.drsuapi.DsReplicaUpdateRefs(ctx.drsuapi_handle, 1, r)

    def join_finalise(ctx):
        """Finalise the join, mark us synchronised and setup secrets db."""

        # FIXME we shouldn't do this in all cases
        # If for some reasons we joined in another site than the one of
        # DC we just replicated from then we don't need to send the updatereplicateref
        # as replication between sites is time based and on the initiative of the
        # requesting DC
        ctx.logger.info("Sending DsReplicaUpdateRefs for all the replicated partitions")
        for nc in ctx.nc_list:
            ctx.send_DsReplicaUpdateRefs(nc)

        if ctx.RODC:
            print "Setting RODC invocationId"
            ctx.local_samdb.set_invocation_id(str(ctx.invocation_id))
            ctx.local_samdb.set_opaque_integer("domainFunctionality",
                                               ctx.behavior_version)
            m = ldb.Message()
            m.dn = ldb.Dn(ctx.local_samdb, "%s" % ctx.ntds_dn)
            m["invocationId"] = ldb.MessageElement(ndr_pack(ctx.invocation_id),
                                                   ldb.FLAG_MOD_REPLACE,
                                                   "invocationId")
            ctx.local_samdb.modify(m)

            # Note: as RODC the invocationId is only stored
            # on the RODC itself, the other DCs never see it.
            #
            # Thats is why we fix up the replPropertyMetaData stamp
            # for the 'invocationId' attribute, we need to change
            # the 'version' to '0', this is what windows 2008r2 does as RODC
            #
            # This means if the object on a RWDC ever gets a invocationId
            # attribute, it will have version '1' (or higher), which will
            # will overwrite the RODC local value.
            ctx.local_samdb.set_attribute_replmetadata_version(m.dn,
                                                               "invocationId",
                                                               0)

        ctx.logger.info("Setting isSynchronized and dsServiceName")
        m = ldb.Message()
        m.dn = ldb.Dn(ctx.local_samdb, '@ROOTDSE')
        m["isSynchronized"] = ldb.MessageElement("TRUE", ldb.FLAG_MOD_REPLACE, "isSynchronized")
        m["dsServiceName"] = ldb.MessageElement("<GUID=%s>" % str(ctx.ntds_guid),
                                                ldb.FLAG_MOD_REPLACE, "dsServiceName")
        ctx.local_samdb.modify(m)

        if ctx.subdomain:
            return

        secrets_ldb = Ldb(ctx.paths.secrets, session_info=system_session(), lp=ctx.lp)

        ctx.logger.info("Setting up secrets database")
        secretsdb_self_join(secrets_ldb, domain=ctx.domain_name,
                            realm=ctx.realm,
                            dnsdomain=ctx.dnsdomain,
                            netbiosname=ctx.myname,
                            domainsid=security.dom_sid(ctx.domsid),
                            machinepass=ctx.acct_pass,
                            secure_channel_type=ctx.secure_channel_type,
                            key_version_number=ctx.key_version_number)

        if ctx.dns_backend.startswith("BIND9_"):
            setup_bind9_dns(ctx.local_samdb, secrets_ldb, security.dom_sid(ctx.domsid),
                            ctx.names, ctx.paths, ctx.lp, ctx.logger,
                            dns_backend=ctx.dns_backend,
                            dnspass=ctx.dnspass, os_level=ctx.behavior_version,
                            targetdir=ctx.targetdir,
                            key_version_number=ctx.dns_key_version_number)

    def join_setup_trusts(ctx):
        """provision the local SAM."""

        def arcfour_encrypt(key, data):
            from Crypto.Cipher import ARC4
            c = ARC4.new(key)
            return c.encrypt(data)

        def string_to_array(string):
            blob = [0] * len(string)

            for i in range(len(string)):
                blob[i] = ord(string[i])

            return blob

        print "Setup domain trusts with server %s" % ctx.server
        binding_options = ""  # why doesn't signing work here? w2k8r2 claims no session key
        lsaconn = lsa.lsarpc("ncacn_np:%s[%s]" % (ctx.server, binding_options),
                             ctx.lp, ctx.creds)

        objectAttr = lsa.ObjectAttribute()
        objectAttr.sec_qos = lsa.QosInfo()

        pol_handle = lsaconn.OpenPolicy2(''.decode('utf-8'),
                                         objectAttr, security.SEC_FLAG_MAXIMUM_ALLOWED)

        info = lsa.TrustDomainInfoInfoEx()
        info.domain_name.string = ctx.dnsdomain
        info.netbios_name.string = ctx.domain_name
        info.sid = security.dom_sid(ctx.domsid)
        info.trust_direction = lsa.LSA_TRUST_DIRECTION_INBOUND | lsa.LSA_TRUST_DIRECTION_OUTBOUND
        info.trust_type = lsa.LSA_TRUST_TYPE_UPLEVEL
        info.trust_attributes = lsa.LSA_TRUST_ATTRIBUTE_WITHIN_FOREST

        try:
            oldname = lsa.String()
            oldname.string = ctx.dnsdomain
            oldinfo = lsaconn.QueryTrustedDomainInfoByName(pol_handle, oldname,
                                                           lsa.LSA_TRUSTED_DOMAIN_INFO_FULL_INFO)
            print("Removing old trust record for %s (SID %s)" % (ctx.dnsdomain, oldinfo.info_ex.sid))
            lsaconn.DeleteTrustedDomain(pol_handle, oldinfo.info_ex.sid)
        except RuntimeError:
            pass

        password_blob = string_to_array(ctx.trustdom_pass.encode('utf-16-le'))

        clear_value = drsblobs.AuthInfoClear()
        clear_value.size = len(password_blob)
        clear_value.password = password_blob

        clear_authentication_information = drsblobs.AuthenticationInformation()
        clear_authentication_information.LastUpdateTime = samba.unix2nttime(int(time.time()))
        clear_authentication_information.AuthType = lsa.TRUST_AUTH_TYPE_CLEAR
        clear_authentication_information.AuthInfo = clear_value

        authentication_information_array = drsblobs.AuthenticationInformationArray()
        authentication_information_array.count = 1
        authentication_information_array.array = [clear_authentication_information]

        outgoing = drsblobs.trustAuthInOutBlob()
        outgoing.count = 1
        outgoing.current = authentication_information_array

        trustpass = drsblobs.trustDomainPasswords()
        confounder = [3] * 512

        for i in range(512):
            confounder[i] = random.randint(0, 255)

        trustpass.confounder = confounder

        trustpass.outgoing = outgoing
        trustpass.incoming = outgoing

        trustpass_blob = ndr_pack(trustpass)

        encrypted_trustpass = arcfour_encrypt(lsaconn.session_key, trustpass_blob)

        auth_blob = lsa.DATA_BUF2()
        auth_blob.size = len(encrypted_trustpass)
        auth_blob.data = string_to_array(encrypted_trustpass)

        auth_info = lsa.TrustDomainInfoAuthInfoInternal()
        auth_info.auth_blob = auth_blob

        trustdom_handle = lsaconn.CreateTrustedDomainEx2(pol_handle,
                                                         info,
                                                         auth_info,
                                                         security.SEC_STD_DELETE)

        rec = {
            "dn" : "cn=%s,cn=system,%s" % (ctx.dnsforest, ctx.base_dn),
            "objectclass" : "trustedDomain",
            "trustType" : str(info.trust_type),
            "trustAttributes" : str(info.trust_attributes),
            "trustDirection" : str(info.trust_direction),
            "flatname" : ctx.forest_domain_name,
            "trustPartner" : ctx.dnsforest,
            "trustAuthIncoming" : ndr_pack(outgoing),
            "trustAuthOutgoing" : ndr_pack(outgoing)
            }
        ctx.local_samdb.add(rec)

        rec = {
            "dn" : "cn=%s$,cn=users,%s" % (ctx.forest_domain_name, ctx.base_dn),
            "objectclass" : "user",
            "userAccountControl" : str(samba.dsdb.UF_INTERDOMAIN_TRUST_ACCOUNT),
            "clearTextPassword" : ctx.trustdom_pass.encode('utf-16-le')
            }
        ctx.local_samdb.add(rec)


    def do_join(ctx):
        # full_nc_list is the list of naming context (NC) for which we will
        # send a updateRef command to the partner DC
        ctx.nc_list = [ ctx.config_dn, ctx.schema_dn ]

        if not ctx.subdomain:
            ctx.nc_list += [ctx.base_dn]
            if ctx.dns_backend != "NONE":
                ctx.nc_list += [ctx.domaindns_zone]

        if ctx.dns_backend != "NONE":
            ctx.nc_list += [ctx.forestdns_zone]

        if ctx.promote_existing:
            ctx.promote_possible()
        else:
            ctx.cleanup_old_join()

        try:
            ctx.join_add_objects()
            ctx.join_provision()
            ctx.join_replicate()
            if ctx.subdomain:
                ctx.join_add_objects2()
                ctx.join_provision_own_domain()
                ctx.join_setup_trusts()
            ctx.join_finalise()
        except:
            print "Join failed - cleaning up"
            ctx.cleanup_old_join()
            raise


def join_RODC(logger=None, server=None, creds=None, lp=None, site=None, netbios_name=None,
              targetdir=None, domain=None, domain_critical_only=False,
              machinepass=None, use_ntvfs=False, dns_backend=None,
              promote_existing=False):
    """Join as a RODC."""

    ctx = dc_join(logger, server, creds, lp, site, netbios_name, targetdir, domain,
                  machinepass, use_ntvfs, dns_backend, promote_existing)

    lp.set("workgroup", ctx.domain_name)
    logger.info("workgroup is %s" % ctx.domain_name)

    lp.set("realm", ctx.realm)
    logger.info("realm is %s" % ctx.realm)

    ctx.krbtgt_dn = "CN=krbtgt_%s,CN=Users,%s" % (ctx.myname, ctx.base_dn)

    # setup some defaults for accounts that should be replicated to this RODC
    ctx.never_reveal_sid = [
        "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_DENY),
        "<SID=%s>" % security.SID_BUILTIN_ADMINISTRATORS,
        "<SID=%s>" % security.SID_BUILTIN_SERVER_OPERATORS,
        "<SID=%s>" % security.SID_BUILTIN_BACKUP_OPERATORS,
        "<SID=%s>" % security.SID_BUILTIN_ACCOUNT_OPERATORS]
    ctx.reveal_sid = "<SID=%s-%s>" % (ctx.domsid, security.DOMAIN_RID_RODC_ALLOW)

    mysid = ctx.get_mysid()
    admin_dn = "<SID=%s>" % mysid
    ctx.managedby = admin_dn

    ctx.userAccountControl = (samba.dsdb.UF_WORKSTATION_TRUST_ACCOUNT |
                              samba.dsdb.UF_TRUSTED_TO_AUTHENTICATE_FOR_DELEGATION |
                              samba.dsdb.UF_PARTIAL_SECRETS_ACCOUNT)

    ctx.SPNs.extend([ "RestrictedKrbHost/%s" % ctx.myname,
                      "RestrictedKrbHost/%s" % ctx.dnshostname ])

    ctx.connection_dn = "CN=RODC Connection (FRS),%s" % ctx.ntds_dn
    ctx.secure_channel_type = misc.SEC_CHAN_RODC
    ctx.RODC = True
    ctx.replica_flags  =  (drsuapi.DRSUAPI_DRS_INIT_SYNC |
                           drsuapi.DRSUAPI_DRS_PER_SYNC |
                           drsuapi.DRSUAPI_DRS_GET_ANC |
                           drsuapi.DRSUAPI_DRS_NEVER_SYNCED |
                           drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING |
                           drsuapi.DRSUAPI_DRS_GET_ALL_GROUP_MEMBERSHIP)
    ctx.domain_replica_flags = ctx.replica_flags
    if domain_critical_only:
        ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY

    ctx.do_join()

    logger.info("Joined domain %s (SID %s) as an RODC" % (ctx.domain_name, ctx.domsid))


def join_DC(logger=None, server=None, creds=None, lp=None, site=None, netbios_name=None,
            targetdir=None, domain=None, domain_critical_only=False,
            machinepass=None, use_ntvfs=False, dns_backend=None,
            promote_existing=False):
    """Join as a DC."""
    ctx = dc_join(logger, server, creds, lp, site, netbios_name, targetdir, domain,
                  machinepass, use_ntvfs, dns_backend, promote_existing)

    lp.set("workgroup", ctx.domain_name)
    logger.info("workgroup is %s" % ctx.domain_name)

    lp.set("realm", ctx.realm)
    logger.info("realm is %s" % ctx.realm)

    ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION

    ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
    ctx.secure_channel_type = misc.SEC_CHAN_BDC

    ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
                         drsuapi.DRSUAPI_DRS_INIT_SYNC |
                         drsuapi.DRSUAPI_DRS_PER_SYNC |
                         drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
                         drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
    ctx.domain_replica_flags = ctx.replica_flags
    if domain_critical_only:
        ctx.domain_replica_flags |= drsuapi.DRSUAPI_DRS_CRITICAL_ONLY

    ctx.do_join()
    logger.info("Joined domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid))

def join_subdomain(logger=None, server=None, creds=None, lp=None, site=None,
        netbios_name=None, targetdir=None, parent_domain=None, dnsdomain=None,
        netbios_domain=None, machinepass=None, adminpass=None, use_ntvfs=False,
        dns_backend=None):
    """Join as a DC."""
    ctx = dc_join(logger, server, creds, lp, site, netbios_name, targetdir, parent_domain,
                  machinepass, use_ntvfs, dns_backend)
    ctx.subdomain = True
    if adminpass is None:
        ctx.adminpass = samba.generate_random_password(12, 32)
    else:
        ctx.adminpass = adminpass
    ctx.parent_domain_name = ctx.domain_name
    ctx.domain_name = netbios_domain
    ctx.realm = dnsdomain
    ctx.parent_dnsdomain = ctx.dnsdomain
    ctx.parent_partition_dn = ctx.get_parent_partition_dn()
    ctx.dnsdomain = dnsdomain
    ctx.partition_dn = "CN=%s,CN=Partitions,%s" % (ctx.domain_name, ctx.config_dn)
    ctx.naming_master = ctx.get_naming_master()
    if ctx.naming_master != ctx.server:
        logger.info("Reconnecting to naming master %s" % ctx.naming_master)
        ctx.server = ctx.naming_master
        ctx.samdb = SamDB(url="ldap://%s" % ctx.server,
                          session_info=system_session(),
                          credentials=ctx.creds, lp=ctx.lp)
        res = ctx.samdb.search(base="", scope=ldb.SCOPE_BASE, attrs=['dnsHostName'],
                               controls=[])
        ctx.server = res[0]["dnsHostName"]
        logger.info("DNS name of new naming master is %s" % ctx.server)

    ctx.base_dn = samba.dn_from_dns_name(dnsdomain)
    ctx.domsid = str(security.random_sid())
    ctx.acct_dn = None
    ctx.dnshostname = "%s.%s" % (ctx.myname, ctx.dnsdomain)
    ctx.trustdom_pass = samba.generate_random_password(128, 128)

    ctx.userAccountControl = samba.dsdb.UF_SERVER_TRUST_ACCOUNT | samba.dsdb.UF_TRUSTED_FOR_DELEGATION

    ctx.SPNs.append('E3514235-4B06-11D1-AB04-00C04FC2DCD2/$NTDSGUID/%s' % ctx.dnsdomain)
    ctx.secure_channel_type = misc.SEC_CHAN_BDC

    ctx.replica_flags = (drsuapi.DRSUAPI_DRS_WRIT_REP |
                         drsuapi.DRSUAPI_DRS_INIT_SYNC |
                         drsuapi.DRSUAPI_DRS_PER_SYNC |
                         drsuapi.DRSUAPI_DRS_FULL_SYNC_IN_PROGRESS |
                         drsuapi.DRSUAPI_DRS_NEVER_SYNCED)
    ctx.domain_replica_flags = ctx.replica_flags

    ctx.do_join()
    ctx.logger.info("Created domain %s (SID %s) as a DC" % (ctx.domain_name, ctx.domsid))
generated by cgit (git 2.34.1) at 2026-03-27 22:49:35 +0000