source4/scripting/devel/getncchanges

   1 #!/usr/bin/env python
   2
   3 # script to call a DRS GetNCChanges from the command line
   4 # this is useful for plugfest testing
   5
   6 import sys
   7 from optparse import OptionParser
   8
   9 sys.path.insert(0, "bin/python")
  10
  11 import samba, ldb
  12 import samba.getopt as options
  13 from samba.dcerpc import drsuapi, misc
  14 from samba.samdb import SamDB
  15 from samba.auth import system_session
  16 from samba.ndr import ndr_unpack
  17
  18 def do_DsBind(drs):
  19     '''make a DsBind call, returning the binding handle'''
  20     bind_info = drsuapi.DsBindInfoCtr()
  21     bind_info.length = 28
  22     bind_info.info = drsuapi.DsBindInfo28()
  23     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_BASE
  24     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION
  25     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI
  26     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2
  27     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS
  28     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1
  29     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION
  30     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE
  31     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2
  32     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION
  33     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2
  34     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD
  35     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND
  36     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO
  37     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION
  38     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01
  39     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP
  40     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY
  41     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3
  42     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2
  43     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6
  44     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS
  45     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8
  46     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5
  47     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6
  48     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3
  49     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7
  50     bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT
  51     (info, handle) = drs.DsBind(misc.GUID(drsuapi.DRSUAPI_DS_BIND_GUID), bind_info)
  52     return handle
  53
  54
  55 def drs_get_rodc_partial_attribute_set(samdb):
  56     '''get a list of attributes for RODC replication'''
  57     partial_attribute_set = drsuapi.DsPartialAttributeSet()
  58     partial_attribute_set.version = 1
  59
  60     attids = []
  61
  62     # the exact list of attids we send is quite critical. Note that
  63     # we do ask for the secret attributes, but set set SPECIAL_SECRET_PROCESSING
  64     # to zero them out
  65     schema_dn = samdb.get_schema_basedn()
  66     res = samdb.search(base=schema_dn, scope=ldb.SCOPE_SUBTREE,
  67                        expression="objectClass=attributeSchema",
  68                        attrs=["lDAPDisplayName", "systemFlags",
  69                               "searchFlags"])
  70
  71     for r in res:
  72         ldap_display_name = r["lDAPDisplayName"][0]
  73         if "systemFlags" in r:
  74             system_flags      = r["systemFlags"][0]
  75             if (int(system_flags) & (samba.dsdb.DS_FLAG_ATTR_NOT_REPLICATED |
  76                                      samba.dsdb.DS_FLAG_ATTR_IS_CONSTRUCTED)):
  77                 continue
  78         if "searchFlags" in r:
  79             search_flags = r["searchFlags"][0]
  80             if (int(search_flags) & samba.dsdb.SEARCH_FLAG_RODC_ATTRIBUTE):
  81                 continue
  82         attid = samdb.get_attid_from_lDAPDisplayName(ldap_display_name)
  83         attids.append(int(attid))
  84
  85     # the attids do need to be sorted, or windows doesn't return
  86     # all the attributes we need
  87     attids.sort()
  88     partial_attribute_set.attids         = attids
  89     partial_attribute_set.num_attids = len(attids)
  90     return partial_attribute_set
  91
  92
  93 ########### main code ###########
  94 if __name__ == "__main__":
  95     parser = OptionParser("getncchanges [options] server")
  96     sambaopts = options.SambaOptions(parser)
  97     parser.add_option_group(sambaopts)
  98     credopts = options.CredentialsOptionsDouble(parser)
  99     parser.add_option_group(credopts)
 100
 101     parser.add_option("", "--dn", dest="dn", help="DN to replicate",)
 102     parser.add_option("", "--exop", dest="exop", help="extended operation",)
 103     parser.add_option("", "--pas", dest="use_pas", action='store_true', default=False,
 104                       help="send partial attribute set (for RODC)")
 105     parser.add_option("", "--nb-iter", type='int', help="Number of getncchange iterations")
 106     parser.add_option("", "--dest-dsa", type='str', help="destination DSA GUID")
 107     parser.add_option("", "--rodc", action='store_true', default=False,
 108                       help='use RODC replica flags')
 109     parser.add_option("", "--partial-rw", action='store_true', default=False,
 110                       help='use RW partial replica flags, not be confused with --pas')
 111     parser.add_option("", "--replica-flags", type='int',
 112                       default=drsuapi.DRSUAPI_DRS_INIT_SYNC |
 113                       drsuapi.DRSUAPI_DRS_PER_SYNC |
 114                       drsuapi.DRSUAPI_DRS_WRIT_REP |
 115                       drsuapi.DRSUAPI_DRS_GET_ANC |
 116                       drsuapi.DRSUAPI_DRS_NEVER_SYNCED,
 117                       help='replica flags')
 118
 119     (opts, args) = parser.parse_args()
 120     if opts.rodc:
 121         opts.replica_flags = drsuapi.DRSUAPI_DRS_INIT_SYNC |\
 122                              drsuapi.DRSUAPI_DRS_PER_SYNC |\
 123                              drsuapi.DRSUAPI_DRS_GET_ANC |\
 124                              drsuapi.DRSUAPI_DRS_NEVER_SYNCED |\
 125                              drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING |\
 126                              drsuapi.DRSUAPI_DRS_GET_ALL_GROUP_MEMBERSHIP
 127
 128     if opts.partial_rw:
 129         opts.replica_flags = drsuapi.DRSUAPI_DRS_INIT_SYNC |\
 130                              drsuapi.DRSUAPI_DRS_PER_SYNC |\
 131                              drsuapi.DRSUAPI_DRS_GET_ANC |\
 132                              drsuapi.DRSUAPI_DRS_NEVER_SYNCED
 133
 134     lp = sambaopts.get_loadparm()
 135     creds = credopts.get_credentials(lp)
 136
 137     if len(args) != 1:
 138         parser.error("You must supply a server")
 139
 140     if creds.is_anonymous():
 141         parser.error("You must supply credentials")
 142
 143     if opts.partial_rw and opts.rodc:
 144         parser.error("Can't specify --partial-rw and --rodc")
 145
 146     server = args[0]
 147
 148     binding_str = "ncacn_ip_tcp:%s[seal,print]" % server
 149
 150     drs = drsuapi.drsuapi(binding_str, lp, creds)
 151     drs_handle = do_DsBind(drs)
 152     print "DRS Handle: %s" % drs_handle
 153
 154     req8 = drsuapi.DsGetNCChangesRequest8()
 155
 156     samdb = SamDB(url="ldap://%s" % server,
 157                   session_info=system_session(),
 158                   credentials=creds, lp=lp)
 159
 160     if opts.use_pas:
 161         local_samdb = SamDB(url=None, session_info=system_session(),
 162                             credentials=creds, lp=lp)
 163
 164     if opts.dn is None:
 165         opts.dn = str(samdb.get_default_basedn())
 166
 167     if opts.exop is None:
 168         exop = drsuapi.DRSUAPI_EXOP_NONE
 169     else:
 170         exop = int(opts.exop)
 171
 172     dest_dsa = opts.dest_dsa
 173     if not dest_dsa:
 174         print "no dest_dsa specified trying to figure out from ldap"
 175         msgs = samdb.search(controls=["search_options:1:2"],
 176                            expression='(objectclass=ntdsdsa)')
 177         if len(msgs) == 1:
 178             dest_dsa = str(ndr_unpack(misc.GUID,  msgs[0]["invocationId"][0]))
 179             print "Found this dsa: %s" % dest_dsa
 180         else:
 181             # TODO fixme
 182             pass
 183         if not dest_dsa:
 184             print "Unable to find the dest_dsa automatically please specify it"
 185             import sys
 186             sys.exit(1)
 187
 188     null_guid = misc.GUID()
 189     req8.destination_dsa_guid               = misc.GUID(dest_dsa)
 190     req8.source_dsa_invocation_id           = misc.GUID(samdb.get_invocation_id())
 191     req8.naming_context                     = drsuapi.DsReplicaObjectIdentifier()
 192     req8.naming_context.dn                  = opts.dn.decode("utf-8")
 193     req8.highwatermark                      = drsuapi.DsReplicaHighWaterMark()
 194     req8.highwatermark.tmp_highest_usn      = 0
 195     req8.highwatermark.reserved_usn         = 0
 196     req8.highwatermark.highest_usn          = 0
 197     req8.uptodateness_vector                = None
 198     req8.replica_flags                      = opts.replica_flags
 199     req8.max_object_count                    = 402
 200     req8.max_ndr_size                        = 402116
 201     req8.extended_op                         = exop
 202     req8.fsmo_info                           = 0
 203     if opts.use_pas:
 204         req8.partial_attribute_set           = drs_get_rodc_partial_attribute_set(local_samdb)
 205     else:
 206         req8.partial_attribute_set           = None
 207     req8.partial_attribute_set_ex            = None
 208     req8.mapping_ctr.num_mappings            = 0
 209     req8.mapping_ctr.mappings                = None
 210
 211     nb_iter = 0
 212     while True:
 213         (level, ctr) = drs.DsGetNCChanges(drs_handle, 8, req8)
 214         nb_iter += 1
 215         if ctr.more_data == 0 or opts.nb_iter == nb_iter:
 216             break
 217         req8.highwatermark = ctr.new_highwatermark