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/*
Unix SMB/CIFS mplementation.
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 "smbd/service.h"
#include "dsdb/repl/drepl_service.h"
#include "param/param.h"
/*
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,
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_NOMEM;
}
sdsa->partition->dn = ldb_dn_copy(sdsa->partition, nc_dn);
if (!sdsa->partition->dn) {
talloc_free(sdsa);
return WERR_NOMEM;
}
sdsa->partition->nc.dn = ldb_dn_alloc_linearized(sdsa->partition, nc_dn);
if (!sdsa->partition->nc.dn) {
talloc_free(sdsa);
return WERR_NOMEM;
}
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_NOMEM;
}
sdsa->repsFrom1->other_info->dns_name =
talloc_asprintf(sdsa->repsFrom1->other_info, "%s._msdcs.%s",
GUID_string(sdsa->repsFrom1->other_info, &sdsa->repsFrom1->source_dsa_obj_guid),
lpcfg_dnsdomain(service->task->lp_ctx));
if (!sdsa->repsFrom1->other_info->dns_name) {
talloc_free(sdsa);
return WERR_NOMEM;
}
if (!service->am_rodc) {
sdsa->repsFrom1->replica_flags = DRSUAPI_DRS_WRIT_REP;
}
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;
for (s=p->sources; s; s=s->next) {
if (GUID_equal(&s->repsFrom1->source_dsa_obj_guid,
&sdsa->repsFrom1->source_dsa_obj_guid)) {
sdsa->repsFrom1->highwatermark = s->repsFrom1->highwatermark;
}
}
}
}
*_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_free(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;
struct dreplsrv_partition_source_dsa *sdsa;
werr = drepl_create_extended_source_dsa(service, nc_dn, source_dsa_dn, min_usn, &sdsa);
W_ERROR_NOT_OK_RETURN(werr);
data = talloc(service, struct extended_op_data);
W_ERROR_HAVE_NO_MEMORY(data);
data->callback = callback;
data->callback_data = callback_data;
data->sdsa = sdsa;
werr = dreplsrv_schedule_partition_pull_source(service, sdsa,
extended_op, fsmo_info,
extended_op_callback, data);
if (!W_ERROR_IS_OK(werr)) {
talloc_free(sdsa);
talloc_free(data);
}
dreplsrv_run_pending_ops(service);
return werr;
}
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