s4-drs: Create connection obejct (nTDSConnection)

create nTDSConnection objects to match the list of servers

Signed-off-by: Andrew Tridgell <tridge@samba.org>

source4/dsdb/config.mk

@@ -82,6 +82,7 @@ PRIVATE_DEPENDENCIES = \
 
 KCC_SRV_OBJ_FILES = $(addprefix $(dsdbsrcdir)/kcc/, \
 		kcc_service.o \
+		kcc_connection.o \
 		kcc_periodic.o)
 
 $(eval $(call proto_header_template,$(dsdbsrcdir)/kcc/kcc_service_proto.h,$(KCC_SRV_OBJ_FILES:.o=.c)))

source4/dsdb/kcc/kcc_connection.c

@@ -0,0 +1,124 @@
+/*
+   Unix SMB/CIFS implementation.
+   KCC service periodic handling
+
+   Copyright (C) Crístian Deives
+
+   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 "lib/events/events.h"
+#include "dsdb/samdb/samdb.h"
+#include "auth/auth.h"
+#include "smbd/service.h"
+#include "lib/messaging/irpc.h"
+#include "dsdb/kcc/kcc_service.h"
+#include "lib/ldb/include/ldb_errors.h"
+#include "../lib/util/dlinklist.h"
+#include "librpc/gen_ndr/ndr_misc.h"
+#include "librpc/gen_ndr/ndr_drsuapi.h"
+#include "librpc/gen_ndr/ndr_drsblobs.h"
+#include "param/param.h"
+
+void kccsrv_apply_connections(struct ldb_dn **connections)
+{
+}
+
+void kccsrv_create_connection(struct kccsrv_service *s, struct repsFromTo1 *r1)
+{
+	struct ldb_message *msg;
+	TALLOC_CTX *tmp_ctx;
+	struct ldb_dn *new_dn, *server_dn;
+	struct GUID guid;
+	const struct GUID *invocation_id;
+	struct ldb_val schedule_val;
+	int ret;
+	bool ok;
+
+	tmp_ctx = talloc_new(s);
+	new_dn = samdb_ntds_settings_dn(s->samdb);
+	if (!new_dn) {
+		DEBUG(0, ("failed to find NTDS settings\n"));
+		goto done;
+	}
+	invocation_id = samdb_ntds_invocation_id(s->samdb);
+	guid = GUID_random();
+	ok = ldb_dn_add_child_fmt(new_dn, "CN=%s", GUID_string(tmp_ctx, &guid));
+	if (!ok) {
+		DEBUG(0, ("failed to create nTDSConnection DN\n"));
+		goto done;
+	}
+	ret = dsdb_find_dn_by_guid(s->samdb, tmp_ctx, GUID_string(tmp_ctx,
+				   &r1->source_dsa_obj_guid), &server_dn);
+	if (ret != LDB_SUCCESS) {
+		DEBUG(0, ("failed to find fromServer DN '%s'\n",
+			  GUID_string(tmp_ctx, &r1->source_dsa_obj_guid)));
+		goto done;
+	}
+	schedule_val = data_blob_const(r1->schedule, sizeof(r1->schedule));
+
+	msg = ldb_msg_new(tmp_ctx);
+	msg->dn = new_dn;
+	ldb_msg_add_string(msg, "invocationID",
+			   GUID_string(tmp_ctx, invocation_id));
+	ldb_msg_add_string(msg, "objectClass", "nTDSConnection");
+	ldb_msg_add_string(msg, "showInAdvancedViewOnly", "TRUE");
+	ldb_msg_add_string(msg, "enabledConnection", "TRUE");
+	/* ldb_msg_add_dn(msg, "fromServer", server_dn); */
+	ldb_msg_add_string(msg, "fromServer", ldb_dn_get_linearized(server_dn));
+	ldb_msg_add_value(msg, "schedule", &schedule_val, NULL);
+	ldb_msg_add_string(msg, "options", "1");
+
+	ret = ldb_add(s->samdb, msg);
+	if (ret == LDB_SUCCESS) {
+		DEBUG(2, ("added nTDSConnection object '%s'\n",
+			  ldb_dn_get_linearized(new_dn)));
+	} else {
+		DEBUG(0, ("failed to add an nTDSConnection object: %s\n",
+			  ldb_strerror(ret)));
+	}
+
+done:
+	talloc_free(tmp_ctx);
+}
+
+struct ldb_dn **kccsrv_find_connections(struct kccsrv_service *s,
+					TALLOC_CTX *mem_ctx)
+{
+	struct ldb_result *res;
+	int ret, i;
+	const char *attrs[] = { "distinguishedName", NULL };
+	struct ldb_dn **connections;
+
+	ret = ldb_search(s->samdb, mem_ctx, &res, s->config_dn,
+			 LDB_SCOPE_ONELEVEL, attrs, "objectClass=nTDSDSA");
+	if (ret != LDB_SUCCESS) {
+		DEBUG(0, ("failed nTDSDSA search: %s\n", ldb_strerror(ret)));
+		return NULL;
+	}
+
+	for (i = 0; i < res->count; i++) {
+		connections = talloc_realloc(mem_ctx, connections,
+					     struct ldb_dn *, i + 1);
+		connections[i] = samdb_result_dn(s->samdb, mem_ctx,
+						 res->msgs[i],
+						 "distinguishedName", NULL);
+	}
+	connections = talloc_realloc(mem_ctx, connections, struct ldb_dn *,
+				     i + 1);
+	connections[i] = NULL;
+	return connections;
+}

source4/dsdb/kcc/kcc_periodic.c

@@ -122,6 +122,7 @@ NTSTATUS kccsrv_simple_update(struct kccsrv_service *s, TALLOC_CTX *mem_ctx)
 	const char *attrs[] = { "objectGUID", "invocationID", NULL };
 	struct repsFromToBlob *reps = NULL;
 	uint32_t count = 0;
+	struct ldb_dn **connections;
 
 	ret = ldb_search(s->samdb, mem_ctx, &res, s->config_dn, LDB_SCOPE_SUBTREE, 
 			 attrs, "objectClass=nTDSDSA");
@@ -160,9 +161,13 @@ NTSTATUS kccsrv_simple_update(struct kccsrv_service *s, TALLOC_CTX *mem_ctx)
 			DRSUAPI_DS_REPLICA_NEIGHBOUR_SYNC_ON_STARTUP | 
 			DRSUAPI_DS_REPLICA_NEIGHBOUR_DO_SCHEDULED_SYNCS;
 		memset(r1->schedule, 0x11, sizeof(r1->schedule));
+		/* kccsrv_create_connection(s, r1); */
 		count++;
 	}
 
+	connections = kccsrv_find_connections(s, mem_ctx);
+	kccsrv_apply_connections(connections);
+
 	return kccsrv_add_repsFrom(s, mem_ctx, reps, count);
 }