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https://github.com/samba-team/samba.git
synced 2025-07-14 12:59:07 +03:00
s4-drs: split out drs utility python functions
these will be re-used by other net commands
This commit is contained in:
Andrew Tridgell
@ -30,6 +30,7 @@ from samba.credentials import Credentials, DONT_USE_KERBEROS
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from samba.provision import secretsdb_self_join, provision, FILL_DRS, find_setup_dir
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from samba.net import Net
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import logging
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from samba.drs_utils import drs_Replicate
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# this makes debugging easier
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samba.talloc_enable_null_tracking()
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@ -86,121 +87,6 @@ def join_rodc(server=None, creds=None, lp=None, site=None, netbios_name=None,
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res = samdb.search(base=samdb.get_default_basedn(), scope=ldb.SCOPE_BASE, attrs=["name"])
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return res[0]["name"][0]
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def do_DsBind(drs):
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'''make a DsBind call, returning the binding handle'''
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bind_info = drsuapi.DsBindInfoCtr()
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bind_info.length = 28
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bind_info.info = drsuapi.DsBindInfo28()
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_BASE;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_ASYNC_REPLICATION;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_REMOVEAPI;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_MOVEREQ_V2;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHG_COMPRESS;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V1;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_RESTORE_USN_OPTIMIZATION;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_KCC_EXECUTE;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_ADDENTRY_V2;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_LINKED_VALUE_REPLICATION;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V2;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_INSTANCE_TYPE_NOT_REQ_ON_MOD;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_CRYPTO_BIND;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GET_REPL_INFO;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_STRONG_ENCRYPTION;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_DCINFO_V01;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_TRANSITIVE_MEMBERSHIP;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_ADD_SID_HISTORY;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_POST_BETA3;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GET_MEMBERSHIPS2;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V6;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_NONDOMAIN_NCS;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREQ_V8;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V5;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V6;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_ADDENTRYREPLY_V3;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_GETCHGREPLY_V7;
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bind_info.info.supported_extensions |= drsuapi.DRSUAPI_SUPPORTED_EXTENSION_VERIFY_OBJECT;
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(info, handle) = drs.DsBind(misc.GUID(drsuapi.DRSUAPI_DS_BIND_GUID), bind_info)
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return handle
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def get_rodc_partial_attribute_set(ctx):
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'''get a list of attributes for RODC replication'''
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partial_attribute_set = drsuapi.DsPartialAttributeSet()
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partial_attribute_set.version = 1
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ctx.attids = []
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# the exact list of attids we send is quite critical. Note that
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# we do ask for the secret attributes, but set set SPECIAL_SECRET_PROCESSING
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# to zero them out
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res = ctx.local_samdb.search(base=ctx.schema_dn, scope=ldb.SCOPE_SUBTREE,
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expression="objectClass=attributeSchema",
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attrs=["lDAPDisplayName", "systemFlags",
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"searchFlags"])
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for r in res:
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ldap_display_name = r["lDAPDisplayName"][0]
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if "systemFlags" in r:
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system_flags = r["systemFlags"][0]
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if (int(system_flags) & (samba.dsdb.DS_FLAG_ATTR_NOT_REPLICATED |
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samba.dsdb.DS_FLAG_ATTR_IS_CONSTRUCTED)):
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continue
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search_flags = r["searchFlags"][0]
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if (int(search_flags) & samba.dsdb.SEARCH_FLAG_RODC_ATTRIBUTE):
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continue
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attid = ctx.local_samdb.get_attid_from_lDAPDisplayName(ldap_display_name)
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ctx.attids.append(int(attid))
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# the attids do need to be sorted, or windows doesn't return
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# all the attributes we need
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ctx.attids.sort()
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partial_attribute_set.attids = ctx.attids
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partial_attribute_set.num_attids = len(ctx.attids)
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return partial_attribute_set
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def replicate_partition(ctx, dn, schema=False, exop=drsuapi.DRSUAPI_EXOP_NONE):
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'''replicate a partition'''
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# setup for a GetNCChanges call
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req8 = drsuapi.DsGetNCChangesRequest8()
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req8.destination_dsa_guid = ctx.ntds_guid
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req8.source_dsa_invocation_id = misc.GUID(ctx.samdb.get_invocation_id())
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req8.naming_context = drsuapi.DsReplicaObjectIdentifier()
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req8.naming_context.dn = dn.decode("utf-8")
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req8.highwatermark = drsuapi.DsReplicaHighWaterMark()
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req8.highwatermark.tmp_highest_usn = 0
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req8.highwatermark.reserved_usn = 0
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req8.highwatermark.highest_usn = 0
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req8.uptodateness_vector = None
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if exop == drsuapi.DRSUAPI_EXOP_REPL_SECRET:
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req8.replica_flags = 0
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else:
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req8.replica_flags = (drsuapi.DRSUAPI_DRS_INIT_SYNC |
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drsuapi.DRSUAPI_DRS_PER_SYNC |
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drsuapi.DRSUAPI_DRS_GET_ANC |
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drsuapi.DRSUAPI_DRS_NEVER_SYNCED |
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drsuapi.DRSUAPI_DRS_SPECIAL_SECRET_PROCESSING)
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req8.max_object_count = 402
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req8.max_ndr_size = 402116
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req8.extended_op = exop
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req8.fsmo_info = 0
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req8.partial_attribute_set = None
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req8.partial_attribute_set_ex = None
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req8.mapping_ctr.num_mappings = 0
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req8.mapping_ctr.mappings = None
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if not schema:
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req8.partial_attribute_set = get_rodc_partial_attribute_set(ctx)
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while True:
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(level, ctr) = ctx.drs.DsGetNCChanges(ctx.drs_handle, 8, req8)
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ctx.net.replicate_chunk(ctx.replication_state, level, ctr, schema=schema)
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if ctr.more_data == 0:
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break
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req8.highwatermark.tmp_highest_usn = ctr.new_highwatermark.tmp_highest_usn
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def join_add_objects(ctx):
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'''add the various objects needed for the join'''
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print "Adding %s" % ctx.acct_dn
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@ -317,19 +203,6 @@ def join_rodc(server=None, creds=None, lp=None, site=None, netbios_name=None,
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username=ctx.samname)
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def join_drs_connect(ctx):
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'''connect to DRSUAPI'''
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print "Doing DsBind as %s" % ctx.samname
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ctx.acct_creds = Credentials()
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ctx.acct_creds.guess(ctx.lp)
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ctx.acct_creds.set_kerberos_state(DONT_USE_KERBEROS)
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ctx.acct_creds.set_username(ctx.samname)
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ctx.acct_creds.set_password(ctx.acct_pass)
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ctx.drs = drsuapi.drsuapi("ncacn_ip_tcp:%s[seal,print]" % ctx.server, ctx.lp, ctx.acct_creds)
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ctx.drs_handle = do_DsBind(ctx.drs)
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def join_provision(ctx):
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'''provision the local SAM'''
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@ -361,13 +234,21 @@ def join_rodc(server=None, creds=None, lp=None, site=None, netbios_name=None,
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print "Starting replication"
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ctx.local_samdb.transaction_start()
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ctx.replication_state = ctx.net.replicate_init(ctx.local_samdb, ctx.lp, ctx.drs)
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source_dsa_invocation_id = misc.GUID(ctx.samdb.get_invocation_id())
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replicate_partition(ctx, ctx.schema_dn, schema=True)
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replicate_partition(ctx, ctx.config_dn)
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replicate_partition(ctx, ctx.base_dn)
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replicate_partition(ctx, ctx.acct_dn, exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET)
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replicate_partition(ctx, ctx.new_krbtgt_dn, exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET)
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acct_creds = Credentials()
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acct_creds.guess(ctx.lp)
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acct_creds.set_kerberos_state(DONT_USE_KERBEROS)
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acct_creds.set_username(ctx.samname)
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acct_creds.set_password(ctx.acct_pass)
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repl = drs_Replicate("ncacn_ip_tcp:%s[seal]" % ctx.server, ctx.lp, acct_creds, ctx.local_samdb)
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repl.replicate(ctx.schema_dn, source_dsa_invocation_id, ctx.ntds_guid, schema=True)
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repl.replicate(ctx.config_dn, source_dsa_invocation_id, ctx.ntds_guid)
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repl.replicate(ctx.base_dn, source_dsa_invocation_id, ctx.ntds_guid)
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repl.replicate(ctx.acct_dn, source_dsa_invocation_id, ctx.ntds_guid, exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET)
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repl.replicate(ctx.new_krbtgt_dn, source_dsa_invocation_id, ctx.ntds_guid, exop=drsuapi.DRSUAPI_EXOP_REPL_SECRET)
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print "Committing SAM database"
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ctx.local_samdb.transaction_commit()
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@ -450,7 +331,6 @@ def join_rodc(server=None, creds=None, lp=None, site=None, netbios_name=None,
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cleanup_old_join(ctx)
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try:
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join_add_objects(ctx)
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join_drs_connect(ctx)
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join_provision(ctx)
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join_replicate(ctx)
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join_finalise(ctx)
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