Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 147 insertions, 0 deletions

diff --git a/source4/dsdb/repl/drepl_fsmo.c b/source4/dsdb/repl/drepl_fsmo.c
new file mode 100644
index 0000000..3c3cbad
--- /dev/null
+++ b/source4/dsdb/repl/drepl_fsmo.c
@@ -0,0 +1,147 @@
+/*
+   Unix SMB/CIFS Implementation.
+
+   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 "samba/service.h"
+#include "dsdb/repl/drepl_service.h"
+#include "param/param.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS            DBGC_DRS_REPL
+
+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);
+}
+
+/*
+  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;
+	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;
+	bool is_us;
+	int ret;
+
+	werr = dsdb_get_fsmo_role_info(tmp_ctx, service->samdb, role,
+				       &fsmo_role_dn, &role_owner_dn);
+	if (!W_ERROR_IS_OK(werr)) {
+		talloc_free(tmp_ctx);
+		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(0,("Unknown role %u in role transfer\n",
+			 (unsigned)role));
+		/* IRPC messages are trusted, so this really should not happen */
+		smb_panic("Unknown role despite dsdb_get_fsmo_role_info success");
+	}
+
+	ret = samdb_dn_is_our_ntdsa(service->samdb, role_owner_dn, &is_us);
+	if (ret != LDB_SUCCESS) {
+		DEBUG(0,("FSMO role check failed (failed to confirm if our ntdsDsa) for DN %s and owner %s \n",
+			 ldb_dn_get_linearized(fsmo_role_dn),
+			 ldb_dn_get_linearized(role_owner_dn)));
+		talloc_free(tmp_ctx);
+		r->out.result = WERR_DS_DRA_INTERNAL_ERROR;
+		return NT_STATUS_OK;
+	}
+	
+	if (is_us) {
+		DEBUG(5,("FSMO role check failed, we already own DN %s with %s\n",
+			 ldb_dn_get_linearized(fsmo_role_dn),
+			 ldb_dn_get_linearized(role_owner_dn)));
+		r->out.result = WERR_OK;
+		talloc_free(tmp_ctx);
+		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;
+		talloc_free(tmp_ctx);
+		return NT_STATUS_OK;
+	}
+
+	/* mark this message to be answered later */
+	msg->defer_reply = true;
+	dreplsrv_run_pending_ops(service);
+	talloc_free(tmp_ctx);
+	return NT_STATUS_OK;
+}