diff options
Diffstat (limited to 'source4/dsdb/repl/drepl_fsmo.c')
| -rw-r--r-- | source4/dsdb/repl/drepl_fsmo.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/source4/dsdb/repl/drepl_fsmo.c b/source4/dsdb/repl/drepl_fsmo.c new file mode 100644 index 0000000000..8719967d16 --- /dev/null +++ b/source4/dsdb/repl/drepl_fsmo.c @@ -0,0 +1,151 @@ +/* + 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 + + 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" +#include "lib/messaging/irpc.h" +#include "librpc/gen_ndr/ndr_irpc.h" + +static void drepl_role_callback(struct dreplsrv_service *service, + WERROR werr, + enum drsuapi_DsExtendedError ext_err) +{ + if (!W_ERROR_IS_OK(werr)) { + DEBUG(0,(__location__ ": Failed role transfer - %s - extended_ret[0x%X]\n", + win_errstr(werr), ext_err)); + } else { + DEBUG(0,(__location__ ": Successful role transfer\n")); + } + talloc_free(service->ncchanges_extended.role_owner_source_dsa); + service->ncchanges_extended.role_owner_source_dsa = NULL; + service->ncchanges_extended.in_progress = false; +} + +static bool fsmo_master_cmp(struct ldb_dn *ntds_dn, struct ldb_dn *fsmo_role_dn) +{ + if (ldb_dn_compare(ntds_dn, fsmo_role_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 + */ +WERROR dreplsrv_fsmo_role_check(struct dreplsrv_service *service, + uint32_t role) +{ + struct ldb_dn *role_owner_dn, *fsmo_role_dn, *ntds_dn; + TALLOC_CTX *tmp_ctx = talloc_new(service); + struct ldb_context *ldb = service->samdb; + int ret; + uint64_t alloc_pool = 0; + + if (service->ncchanges_extended.in_progress) { + talloc_free(tmp_ctx); + return WERR_OK; + } + + ntds_dn = samdb_ntds_settings_dn(ldb); + if (!ntds_dn) { + return WERR_DS_DRA_INTERNAL_ERROR; + } + /* work out who is the current owner */ + switch (role) { + case DREPL_NAMING_MASTER: + role_owner_dn = samdb_partitions_dn(ldb, tmp_ctx), + ret = samdb_reference_dn(ldb, tmp_ctx, role_owner_dn, "fSMORoleOwner", &fsmo_role_dn); + if (ret != LDB_SUCCESS) { + DEBUG(0,(__location__ ": Failed to find fSMORoleOwner in Naming Master object - %s", + ldb_errstring(ldb))); + talloc_free(tmp_ctx); + return WERR_DS_DRA_INTERNAL_ERROR; + } + break; + case DREPL_INFRASTRUCTURE_MASTER: + role_owner_dn = samdb_infrastructure_dn(ldb, tmp_ctx); + ret = samdb_reference_dn(ldb, tmp_ctx, role_owner_dn, "fSMORoleOwner", &fsmo_role_dn); + if (ret != LDB_SUCCESS) { + DEBUG(0,(__location__ ": Failed to find fSMORoleOwner in Schema Master object - %s", + ldb_errstring(ldb))); + talloc_free(tmp_ctx); + return WERR_DS_DRA_INTERNAL_ERROR; + } + break; + case DREPL_RID_MASTER: + ret = samdb_rid_manager_dn(ldb, tmp_ctx, &role_owner_dn); + if (ret != LDB_SUCCESS) { + DEBUG(0, (__location__ ": Failed to find RID Manager object - %s", ldb_errstring(ldb))); + talloc_free(tmp_ctx); + return WERR_DS_DRA_INTERNAL_ERROR; + } + + /* find the DN of the RID Manager */ + ret = samdb_reference_dn(ldb, tmp_ctx, role_owner_dn, "fSMORoleOwner", &fsmo_role_dn); + if (ret != LDB_SUCCESS) { + DEBUG(0,(__location__ ": Failed to find fSMORoleOwner in RID Manager object - %s", + ldb_errstring(ldb))); + talloc_free(tmp_ctx); + return WERR_DS_DRA_INTERNAL_ERROR; + } + break; + case DREPL_SCHEMA_MASTER: + role_owner_dn = ldb_get_schema_basedn(ldb); + ret = samdb_reference_dn(ldb, tmp_ctx, role_owner_dn, "fSMORoleOwner", &fsmo_role_dn); + if (ret != LDB_SUCCESS) { + DEBUG(0,(__location__ ": Failed to find fSMORoleOwner in Schema Master object - %s", + ldb_errstring(ldb))); + talloc_free(tmp_ctx); + return WERR_DS_DRA_INTERNAL_ERROR; + } + if (!fsmo_master_cmp(ntds_dn, fsmo_role_dn)) { + return drepl_request_extended_op(service, + role_owner_dn, + fsmo_role_dn, + DRSUAPI_EXOP_FSMO_REQ_ROLE, + alloc_pool, + drepl_role_callback); + } + break; + case DREPL_PDC_MASTER: + role_owner_dn = ldb_get_default_basedn(ldb); + ret = samdb_reference_dn(ldb, tmp_ctx, role_owner_dn, "fSMORoleOwner", &fsmo_role_dn); + if (ret != LDB_SUCCESS) { + DEBUG(0,(__location__ ": Failed to find fSMORoleOwner in Pd Master object - %s", + ldb_errstring(ldb))); + talloc_free(tmp_ctx); + return WERR_DS_DRA_INTERNAL_ERROR; + } + break; + default: + return WERR_DS_DRA_INTERNAL_ERROR; + } + return WERR_OK; +} |