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Diffstat (limited to '')
| -rw-r--r-- | source4/dsdb/repl/drepl_extended.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/source4/dsdb/repl/drepl_extended.c b/source4/dsdb/repl/drepl_extended.c new file mode 100644 index 0000000..8b5bb6f --- /dev/null +++ b/source4/dsdb/repl/drepl_extended.c @@ -0,0 +1,211 @@ +/* + Unix SMB/CIFS Implementation. + + DSDB replication service - extended operation code + + Copyright (C) Andrew Tridgell 2010 + Copyright (C) Andrew Bartlett 2010 + Copyright (C) Nadezhda Ivanova 2010 + + based on drepl_notify.c + + 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/>. + +*/ + +#include "includes.h" +#include "ldb_module.h" +#include "dsdb/samdb/samdb.h" +#include "samba/service.h" +#include "dsdb/repl/drepl_service.h" +#include "param/param.h" + +#undef DBGC_CLASS +#define DBGC_CLASS DBGC_DRS_REPL + + +/* + create the role owner source dsa structure + + nc_dn: the DN of the subtree being replicated + source_dsa_dn: the DN of the server that we are replicating from + */ +static WERROR drepl_create_extended_source_dsa(struct dreplsrv_service *service, + TALLOC_CTX *mem_ctx, + struct ldb_dn *nc_dn, + struct ldb_dn *source_dsa_dn, + uint64_t min_usn, + struct dreplsrv_partition_source_dsa **_sdsa) +{ + struct dreplsrv_partition_source_dsa *sdsa; + struct ldb_context *ldb = service->samdb; + int ret; + WERROR werr; + struct ldb_dn *nc_root; + struct dreplsrv_partition *p; + + sdsa = talloc_zero(service, struct dreplsrv_partition_source_dsa); + W_ERROR_HAVE_NO_MEMORY(sdsa); + + sdsa->partition = talloc_zero(sdsa, struct dreplsrv_partition); + if (!sdsa->partition) { + talloc_free(sdsa); + return WERR_NOT_ENOUGH_MEMORY; + } + + sdsa->partition->dn = ldb_dn_copy(sdsa->partition, nc_dn); + if (!sdsa->partition->dn) { + talloc_free(sdsa); + return WERR_NOT_ENOUGH_MEMORY; + } + sdsa->partition->nc.dn = ldb_dn_alloc_linearized(sdsa->partition, nc_dn); + if (!sdsa->partition->nc.dn) { + talloc_free(sdsa); + return WERR_NOT_ENOUGH_MEMORY; + } + ret = dsdb_find_guid_by_dn(ldb, nc_dn, &sdsa->partition->nc.guid); + if (ret != LDB_SUCCESS) { + DEBUG(0,(__location__ ": Failed to find GUID for %s\n", + ldb_dn_get_linearized(nc_dn))); + talloc_free(sdsa); + return WERR_DS_DRA_INTERNAL_ERROR; + } + + sdsa->repsFrom1 = &sdsa->_repsFromBlob.ctr.ctr1; + ret = dsdb_find_guid_by_dn(ldb, source_dsa_dn, &sdsa->repsFrom1->source_dsa_obj_guid); + if (ret != LDB_SUCCESS) { + DEBUG(0,(__location__ ": Failed to find objectGUID for %s\n", + ldb_dn_get_linearized(source_dsa_dn))); + talloc_free(sdsa); + return WERR_DS_DRA_INTERNAL_ERROR; + } + + sdsa->repsFrom1->other_info = talloc_zero(sdsa, struct repsFromTo1OtherInfo); + if (!sdsa->repsFrom1->other_info) { + talloc_free(sdsa); + return WERR_NOT_ENOUGH_MEMORY; + } + + sdsa->repsFrom1->other_info->dns_name = samdb_ntds_msdcs_dns_name(ldb, + sdsa->repsFrom1->other_info, + &sdsa->repsFrom1->source_dsa_obj_guid); + if (!sdsa->repsFrom1->other_info->dns_name) { + talloc_free(sdsa); + return WERR_NOT_ENOUGH_MEMORY; + } + + werr = dreplsrv_out_connection_attach(service, sdsa->repsFrom1, &sdsa->conn); + if (!W_ERROR_IS_OK(werr)) { + DEBUG(0,(__location__ ": Failed to attach connection to %s\n", + ldb_dn_get_linearized(nc_dn))); + talloc_free(sdsa); + return werr; + } + + ret = dsdb_find_nc_root(service->samdb, sdsa, nc_dn, &nc_root); + if (ret != LDB_SUCCESS) { + DEBUG(0,(__location__ ": Failed to find nc_root for %s\n", + ldb_dn_get_linearized(nc_dn))); + talloc_free(sdsa); + return WERR_DS_DRA_INTERNAL_ERROR; + } + + /* use the partition uptodateness vector */ + ret = dsdb_load_udv_v2(service->samdb, nc_root, sdsa->partition, + &sdsa->partition->uptodatevector.cursors, + &sdsa->partition->uptodatevector.count); + if (ret != LDB_SUCCESS) { + DEBUG(0,(__location__ ": Failed to load UDV for %s\n", + ldb_dn_get_linearized(nc_root))); + talloc_free(sdsa); + return WERR_DS_DRA_INTERNAL_ERROR; + } + + /* find the highwatermark from the partitions list */ + for (p=service->partitions; p; p=p->next) { + if (ldb_dn_compare(p->dn, nc_root) == 0) { + struct dreplsrv_partition_source_dsa *s; + werr = dreplsrv_partition_source_dsa_by_guid(p, + &sdsa->repsFrom1->source_dsa_obj_guid, + &s); + if (W_ERROR_IS_OK(werr)) { + sdsa->repsFrom1->highwatermark = s->repsFrom1->highwatermark; + sdsa->repsFrom1->replica_flags = s->repsFrom1->replica_flags; + } + } + } + + if (!service->am_rodc) { + sdsa->repsFrom1->replica_flags |= DRSUAPI_DRS_WRIT_REP; + } + + *_sdsa = sdsa; + return WERR_OK; +} + +struct extended_op_data { + dreplsrv_extended_callback_t callback; + void *callback_data; + struct dreplsrv_partition_source_dsa *sdsa; +}; + +/* + called when an extended op finishes + */ +static void extended_op_callback(struct dreplsrv_service *service, + WERROR err, + enum drsuapi_DsExtendedError exop_error, + void *cb_data) +{ + struct extended_op_data *data = talloc_get_type_abort(cb_data, struct extended_op_data); + talloc_unlink(data, data->sdsa); + data->callback(service, err, exop_error, data->callback_data); + talloc_free(data); +} + +/* + schedule a getncchanges request to the role owner for an extended operation + */ +WERROR drepl_request_extended_op(struct dreplsrv_service *service, + struct ldb_dn *nc_dn, + struct ldb_dn *source_dsa_dn, + enum drsuapi_DsExtendedOperation extended_op, + uint64_t fsmo_info, + uint64_t min_usn, + dreplsrv_extended_callback_t callback, + void *callback_data) +{ + WERROR werr; + struct extended_op_data *data; + + data = talloc(service, struct extended_op_data); + W_ERROR_HAVE_NO_MEMORY(data); + + werr = drepl_create_extended_source_dsa(service, data, nc_dn, source_dsa_dn, min_usn, &data->sdsa); + W_ERROR_NOT_OK_RETURN(werr); + + data->callback = callback; + data->callback_data = callback_data; + + werr = dreplsrv_schedule_partition_pull_source(service, data->sdsa, + 0, extended_op, fsmo_info, + extended_op_callback, data); + if (!W_ERROR_IS_OK(werr)) { + talloc_free(data); + } + + dreplsrv_run_pending_ops(service); + + return werr; +} |