/* Unix SMB/CIFS mplementation. DSDB replication service - FSMO role change Copyright (C) Nadezhda Ivanova 2010 Copyright (C) Andrew Tridgell 2010 Copyright (C) Andrew Bartlett 2010 Copyright (C) Anatoliy Atanasov 2010 based on drepl_ridalloc.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 "dsdb/samdb/samdb.h" #include "smbd/service.h" #include "dsdb/repl/drepl_service.h" #include "param/param.h" struct fsmo_role_state { struct irpc_message *msg; struct drepl_takeFSMORole *r; }; static void drepl_role_callback(struct dreplsrv_service *service, WERROR werr, enum drsuapi_DsExtendedError ext_err, void *cb_data) { struct fsmo_role_state *fsmo = talloc_get_type_abort(cb_data, struct fsmo_role_state); if (!W_ERROR_IS_OK(werr)) { DEBUG(2,(__location__ ": Failed role transfer - %s - extended_ret[0x%X]\n", win_errstr(werr), ext_err)); } else { DEBUG(2,(__location__ ": Successful role transfer\n")); } fsmo->r->out.result = werr; irpc_send_reply(fsmo->msg, NT_STATUS_OK); } static bool fsmo_master_equal(struct ldb_dn *ntds_dn, struct ldb_dn *role_owner_dn) { if (ldb_dn_compare(ntds_dn, role_owner_dn) == 0) { DEBUG(0,("\nWe are the FSMO master.\n")); return true; } return false; } /* see which role is we are asked to assume, initialize data and send request */ NTSTATUS drepl_take_FSMO_role(struct irpc_message *msg, struct drepl_takeFSMORole *r) { struct dreplsrv_service *service = talloc_get_type(msg->private_data, struct dreplsrv_service); struct ldb_dn *role_owner_dn, *fsmo_role_dn, *ntds_dn; TALLOC_CTX *tmp_ctx = talloc_new(service); uint64_t fsmo_info = 0; enum drsuapi_DsExtendedOperation extended_op = DRSUAPI_EXOP_NONE; WERROR werr; enum drepl_role_master role = r->in.role; struct fsmo_role_state *fsmo; ntds_dn = samdb_ntds_settings_dn(service->samdb); if (!ntds_dn) { r->out.result = WERR_DS_DRA_INTERNAL_ERROR; return NT_STATUS_OK; } werr = dsdb_get_fsmo_role_info(tmp_ctx, service->samdb, role, &fsmo_role_dn, &role_owner_dn); if (!W_ERROR_IS_OK(werr)) { r->out.result = werr; return NT_STATUS_OK; } switch (role) { case DREPL_NAMING_MASTER: case DREPL_INFRASTRUCTURE_MASTER: case DREPL_SCHEMA_MASTER: extended_op = DRSUAPI_EXOP_FSMO_REQ_ROLE; break; case DREPL_RID_MASTER: extended_op = DRSUAPI_EXOP_FSMO_RID_REQ_ROLE; break; case DREPL_PDC_MASTER: extended_op = DRSUAPI_EXOP_FSMO_REQ_PDC; break; default: DEBUG(2,("Unknown role %u in role transfer\n", (unsigned)role)); r->out.result = WERR_DS_DRA_INTERNAL_ERROR; return NT_STATUS_OK; } if (fsmo_master_equal(ntds_dn, role_owner_dn) || (extended_op == DRSUAPI_EXOP_NONE)) { DEBUG(0,("FSMO role check failed for DN %s and owner %s \n", ldb_dn_get_linearized(fsmo_role_dn), ldb_dn_get_linearized(role_owner_dn))); r->out.result = WERR_OK; return NT_STATUS_OK; } fsmo = talloc(msg, struct fsmo_role_state); NT_STATUS_HAVE_NO_MEMORY(fsmo); fsmo->msg = msg; fsmo->r = r; werr = drepl_request_extended_op(service, fsmo_role_dn, role_owner_dn, extended_op, fsmo_info, 0, drepl_role_callback, fsmo); if (!W_ERROR_IS_OK(werr)) { r->out.result = werr; return NT_STATUS_OK; } /* mark this message to be answered later */ msg->defer_reply = true; dreplsrv_run_pending_ops(service); return NT_STATUS_OK; }