Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

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

1 files changed, 1097 insertions, 0 deletions

diff --git a/ctdb/server/ctdb_control.c b/ctdb/server/ctdb_control.c
new file mode 100644
index 0000000..422c4cf
--- /dev/null
+++ b/ctdb/server/ctdb_control.c
@@ -0,0 +1,1097 @@
+/* 
+   ctdb_control protocol code
+
+   Copyright (C) Andrew Tridgell  2007
+
+   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 "replace.h"
+#include "system/network.h"
+#include "system/filesys.h"
+#include "system/wait.h"
+
+#include <talloc.h>
+#include <tevent.h>
+
+#include "lib/tdb_wrap/tdb_wrap.h"
+#include "lib/util/dlinklist.h"
+#include "lib/util/debug.h"
+#include "lib/util/samba_util.h"
+#include "lib/util/talloc_report.h"
+
+#include "ctdb_private.h"
+#include "ctdb_client.h"
+
+#include "protocol/protocol_private.h"
+
+#include "common/reqid.h"
+#include "common/common.h"
+#include "common/logging.h"
+
+
+struct ctdb_control_state {
+	struct ctdb_context *ctdb;
+	uint32_t reqid;
+	ctdb_control_callback_fn_t callback;
+	void *private_data;
+	unsigned flags;
+};
+
+
+/*
+  dump talloc memory hierarchy, returning it as a blob to the client
+ */
+int32_t ctdb_dump_memory(struct ctdb_context *ctdb, TDB_DATA *outdata)
+{
+	char *report;
+	size_t reportlen;
+
+	report = talloc_report_str(outdata, NULL);
+	if (report == NULL) {
+		DEBUG(DEBUG_ERR,
+		      (__location__ " talloc_report_str failed\n"));
+		return -1;
+	}
+	reportlen = talloc_get_size(report);
+
+	if (reportlen > 0) {
+		reportlen -= 1;	/* strip trailing zero */
+	}
+
+	outdata->dptr = (uint8_t *)report;
+	outdata->dsize = reportlen;
+	return 0;
+}
+
+static int32_t control_not_implemented(const char *unsupported,
+				       const char *alternate)
+{
+	if (alternate == NULL) {
+		DEBUG(DEBUG_ERR,
+		      ("Control %s is not implemented any more\n",
+		       unsupported));
+	} else {
+		DEBUG(DEBUG_ERR,
+		      ("Control %s is not implemented any more, use %s instead\n",
+		       unsupported, alternate));
+	}
+	return -1;
+}
+
+struct ctdb_echo_data_state {
+	struct ctdb_context *ctdb;
+	struct ctdb_req_control_old *c;
+	struct ctdb_echo_data *data;
+};
+
+static void ctdb_echo_data_timeout(
+	struct tevent_context *ev,
+	struct tevent_timer *te,
+	struct timeval now,
+	void *private_data);
+
+static int32_t ctdb_control_echo_data(
+	struct ctdb_context *ctdb,
+	struct ctdb_req_control_old *c,
+	TDB_DATA indata,
+	bool *async_reply)
+{
+	struct ctdb_echo_data_state *state = NULL;
+	struct tevent_timer *te = NULL;
+	uint32_t delay = 0;
+	size_t np = 0;
+	int ret;
+
+	state = talloc_zero(ctdb, struct ctdb_echo_data_state);
+	CTDB_NO_MEMORY(ctdb, state);
+	state->ctdb = ctdb;
+
+	ret = ctdb_echo_data_pull(
+		indata.dptr, indata.dsize, state, &state->data, &np);
+	if (ret != 0) {
+		DBG_DEBUG("ctdb_echo_data_pull failed: %s\n",
+			  strerror(ret));
+		TALLOC_FREE(state);
+		return -1;
+	}
+
+	te = tevent_add_timer(
+		ctdb->ev,
+		state,
+		timeval_current_ofs_msec(delay),
+		ctdb_echo_data_timeout,
+		state);
+	if (te == NULL) {
+		DBG_DEBUG("tevent_add_timer failed\n");
+		TALLOC_FREE(state);
+		return -1;
+	}
+
+	state->c = talloc_move(state, &c);
+	*async_reply = true;
+
+	return 0;
+}
+
+static void ctdb_echo_data_timeout(
+	struct tevent_context *ev,
+	struct tevent_timer *te,
+	struct timeval now,
+	void *private_data)
+{
+	struct ctdb_echo_data_state *state = talloc_get_type_abort(
+		private_data, struct ctdb_echo_data_state);
+	size_t len = ctdb_echo_data_len(state->data);
+	uint8_t *buf = NULL;
+	size_t np;
+	TDB_DATA data;
+
+	DBG_DEBUG("reqid=%"PRIu32" len=%zu\n", state->c->hdr.reqid, len);
+
+	buf = talloc_array(state, uint8_t, len);
+	if (buf == NULL) {
+		DBG_WARNING("talloc_array(%zu) failed\n", len);
+		goto done;
+	}
+	ctdb_echo_data_push(state->data, buf, &np);
+	data = (TDB_DATA) { .dptr = buf, .dsize = np };
+
+	ctdb_request_control_reply(state->ctdb, state->c, &data, 0, NULL);
+
+done:
+	TALLOC_FREE(state);
+}
+
+static int ctdb_control_disable_node(struct ctdb_context *ctdb)
+{
+	struct ctdb_node *node;
+
+	node = ctdb_find_node(ctdb, CTDB_CURRENT_NODE);
+	if (node == NULL) {
+		/* Can't happen */
+		DBG_ERR("Unable to find current node\n");
+		return -1;
+	}
+
+	D_ERR("Disable node\n");
+	node->flags |= NODE_FLAGS_PERMANENTLY_DISABLED;
+
+	return 0;
+}
+
+static int ctdb_control_enable_node(struct ctdb_context *ctdb)
+{
+	struct ctdb_node *node;
+
+	node = ctdb_find_node(ctdb, CTDB_CURRENT_NODE);
+	if (node == NULL) {
+		/* Can't happen */
+		DBG_ERR("Unable to find current node\n");
+		return -1;
+	}
+
+	D_ERR("Enable node\n");
+	node->flags &= ~NODE_FLAGS_PERMANENTLY_DISABLED;
+
+	return 0;
+}
+
+/*
+  process a control request
+ */
+static int32_t ctdb_control_dispatch(struct ctdb_context *ctdb, 
+				     struct ctdb_req_control_old *c,
+				     TDB_DATA indata,
+				     TDB_DATA *outdata, uint32_t srcnode,
+				     const char **errormsg,
+				     bool *async_reply)
+{
+	uint32_t opcode = c->opcode;
+	uint64_t srvid = c->srvid;
+	uint32_t client_id = c->client_id;
+	static int level = DEBUG_ERR;
+
+	switch (opcode) {
+	case CTDB_CONTROL_PROCESS_EXISTS: {
+		CHECK_CONTROL_DATA_SIZE(sizeof(pid_t));
+		return ctdb_control_process_exists(ctdb, *(pid_t *)indata.dptr);
+	}
+
+	case CTDB_CONTROL_SET_DEBUG: {
+		union {
+			uint8_t *ptr;
+			int32_t *level;
+		} debug;
+		CHECK_CONTROL_DATA_SIZE(sizeof(int32_t));
+		debug.ptr = indata.dptr;
+		debuglevel_set(*debug.level);
+		return 0;
+	}
+
+	case CTDB_CONTROL_GET_DEBUG: {
+		CHECK_CONTROL_DATA_SIZE(0);
+		level = debuglevel_get();
+		outdata->dptr = (uint8_t *)&(level);
+		outdata->dsize = sizeof(DEBUGLEVEL);
+		return 0;
+	}
+
+	case CTDB_CONTROL_STATISTICS: {
+		CHECK_CONTROL_DATA_SIZE(0);
+		ctdb->statistics.memory_used = talloc_total_size(NULL);
+		ctdb->statistics.num_clients = ctdb->num_clients;
+		ctdb->statistics.frozen = (ctdb_db_all_frozen(ctdb) ? 1 : 0);
+		ctdb->statistics.recovering = (ctdb->recovery_mode == CTDB_RECOVERY_ACTIVE);
+		ctdb->statistics.statistics_current_time = timeval_current();
+
+		outdata->dptr = (uint8_t *)&ctdb->statistics;
+		outdata->dsize = sizeof(ctdb->statistics);
+		return 0;
+	}
+
+	case CTDB_CONTROL_GET_ALL_TUNABLES: {
+		CHECK_CONTROL_DATA_SIZE(0);
+		outdata->dptr = (uint8_t *)&ctdb->tunable;
+		outdata->dsize = sizeof(ctdb->tunable);
+		return 0;
+	}
+
+	case CTDB_CONTROL_DUMP_MEMORY: {
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_dump_memory(ctdb, outdata);
+	}
+
+	case CTDB_CONTROL_STATISTICS_RESET: {
+		struct ctdb_db_context *ctdb_db;
+
+		CHECK_CONTROL_DATA_SIZE(0);
+		ZERO_STRUCT(ctdb->statistics);
+		for (ctdb_db = ctdb->db_list;
+		     ctdb_db != NULL;
+		     ctdb_db = ctdb_db->next) {
+			ctdb_db_statistics_reset(ctdb_db);
+		}
+		ctdb->statistics.statistics_start_time = timeval_current();
+		return 0;
+	}
+
+	case CTDB_CONTROL_GETVNNMAP:
+		return ctdb_control_getvnnmap(ctdb, opcode, indata, outdata);
+
+	case CTDB_CONTROL_GET_DBMAP:
+		return ctdb_control_getdbmap(ctdb, opcode, indata, outdata);
+
+	case CTDB_CONTROL_GET_NODEMAPv4:
+		return control_not_implemented("GET_NODEMAPv4", "GET_NODEMAP");
+
+	case CTDB_CONTROL_GET_NODEMAP:
+		return ctdb_control_getnodemap(ctdb, opcode, indata, outdata);
+
+	case CTDB_CONTROL_GET_NODES_FILE:
+		return ctdb_control_getnodesfile(ctdb, opcode, indata, outdata);
+
+	case CTDB_CONTROL_RELOAD_NODES_FILE:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_reload_nodes_file(ctdb, opcode);
+
+	case CTDB_CONTROL_SET_DB_STICKY: {
+		uint32_t db_id;
+		struct ctdb_db_context *ctdb_db;
+
+		CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
+		db_id = *(uint32_t *)indata.dptr;
+		ctdb_db = find_ctdb_db(ctdb, db_id);
+		if (ctdb_db == NULL) return -1;
+		return ctdb_set_db_sticky(ctdb, ctdb_db);
+	}
+
+	case CTDB_CONTROL_SETVNNMAP:
+		return ctdb_control_setvnnmap(ctdb, opcode, indata, outdata);
+
+	case CTDB_CONTROL_PULL_DB:
+		return control_not_implemented("PULL_DB", NULL);
+
+	case CTDB_CONTROL_SET_DMASTER: 
+		return control_not_implemented("SET_DMASTER", NULL);
+
+	case CTDB_CONTROL_PUSH_DB:
+		return control_not_implemented("PUSH_DB", NULL);
+
+	case CTDB_CONTROL_GET_RECMODE: {
+		return ctdb->recovery_mode;
+	}
+
+	case CTDB_CONTROL_SET_RECMASTER:
+		return control_not_implemented("SET_RECMASTER", NULL);
+
+	case CTDB_CONTROL_GET_RECMASTER:
+		return control_not_implemented("GET_RECMASTER", NULL);
+
+	case CTDB_CONTROL_GET_PID:
+		return getpid();
+
+	case CTDB_CONTROL_GET_PNN:
+		return ctdb->pnn;
+
+	case CTDB_CONTROL_PING:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb->num_clients;
+
+	case CTDB_CONTROL_GET_RUNSTATE:
+		CHECK_CONTROL_DATA_SIZE(0);
+		outdata->dptr = (uint8_t *)&ctdb->runstate;
+		outdata->dsize = sizeof(uint32_t);
+		return 0;
+
+
+	case CTDB_CONTROL_SET_DB_READONLY: {
+		uint32_t db_id;
+		struct ctdb_db_context *ctdb_db;
+
+		CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
+		db_id = *(uint32_t *)indata.dptr;
+		ctdb_db = find_ctdb_db(ctdb, db_id);
+		if (ctdb_db == NULL) return -1;
+		return ctdb_set_db_readonly(ctdb, ctdb_db);
+	}
+	case CTDB_CONTROL_GET_DBNAME: {
+		uint32_t db_id;
+		struct ctdb_db_context *ctdb_db;
+
+		CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
+		db_id = *(uint32_t *)indata.dptr;
+		ctdb_db = find_ctdb_db(ctdb, db_id);
+		if (ctdb_db == NULL) return -1;
+		outdata->dptr = discard_const(ctdb_db->db_name);
+		outdata->dsize = strlen(ctdb_db->db_name)+1;
+		return 0;
+	}
+
+	case CTDB_CONTROL_GETDBPATH: {
+		uint32_t db_id;
+		struct ctdb_db_context *ctdb_db;
+
+		CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
+		db_id = *(uint32_t *)indata.dptr;
+		ctdb_db = find_ctdb_db(ctdb, db_id);
+		if (ctdb_db == NULL) return -1;
+		outdata->dptr = discard_const(ctdb_db->db_path);
+		outdata->dsize = strlen(ctdb_db->db_path)+1;
+		return 0;
+	}
+
+	case CTDB_CONTROL_DB_ATTACH:
+	  return ctdb_control_db_attach(ctdb,
+					indata,
+					outdata,
+					0,
+					srcnode,
+					client_id,
+					c,
+					async_reply);
+
+	case CTDB_CONTROL_DB_ATTACH_PERSISTENT:
+	  return ctdb_control_db_attach(ctdb,
+					indata,
+					outdata,
+					CTDB_DB_FLAGS_PERSISTENT,
+					srcnode,
+					client_id,
+					c,
+					async_reply);
+
+	case CTDB_CONTROL_DB_ATTACH_REPLICATED:
+	  return ctdb_control_db_attach(ctdb,
+					indata,
+					outdata,
+					CTDB_DB_FLAGS_REPLICATED,
+					srcnode,
+					client_id,
+					c,
+					async_reply);
+
+	case CTDB_CONTROL_SET_CALL:
+		return control_not_implemented("SET_CALL", NULL);
+
+	case CTDB_CONTROL_TRAVERSE_START:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_traverse_start));
+		return ctdb_control_traverse_start(ctdb, indata, outdata, srcnode, client_id);
+
+	case CTDB_CONTROL_TRAVERSE_START_EXT:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_traverse_start_ext));
+		return ctdb_control_traverse_start_ext(ctdb, indata, outdata, srcnode, client_id);
+
+	case CTDB_CONTROL_TRAVERSE_ALL:
+		return ctdb_control_traverse_all(ctdb, indata, outdata);
+
+	case CTDB_CONTROL_TRAVERSE_ALL_EXT:
+		return ctdb_control_traverse_all_ext(ctdb, indata, outdata);
+
+	case CTDB_CONTROL_TRAVERSE_DATA:
+		return ctdb_control_traverse_data(ctdb, indata, outdata);
+
+	case CTDB_CONTROL_TRAVERSE_KILL:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_traverse_start));
+		return ctdb_control_traverse_kill(ctdb, indata, outdata, srcnode);
+
+	case CTDB_CONTROL_REGISTER_SRVID:
+		return daemon_register_message_handler(ctdb, client_id, srvid);
+
+	case CTDB_CONTROL_DEREGISTER_SRVID:
+		return daemon_deregister_message_handler(ctdb, client_id, srvid);
+
+	case CTDB_CONTROL_CHECK_SRVIDS:
+		return control_not_implemented("CHECK_SRVIDS", NULL);
+
+	case CTDB_CONTROL_ENABLE_SEQNUM:
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
+		return ctdb_ltdb_enable_seqnum(ctdb, *(uint32_t *)indata.dptr);
+
+	case CTDB_CONTROL_UPDATE_SEQNUM:
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));		
+		return ctdb_ltdb_update_seqnum(ctdb, *(uint32_t *)indata.dptr, srcnode);
+
+	case CTDB_CONTROL_FREEZE:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_freeze(ctdb, c, async_reply);
+
+	case CTDB_CONTROL_THAW:
+		return control_not_implemented("THAW", NULL);
+
+	case CTDB_CONTROL_SET_RECMODE:
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));		
+		return ctdb_control_set_recmode(ctdb, c, indata, async_reply, errormsg);
+
+	case CTDB_CONTROL_GET_MONMODE:
+		return control_not_implemented("GET_MONMODE", NULL);
+
+	case CTDB_CONTROL_ENABLE_MONITOR:
+		return control_not_implemented("ENABLE_MONITOR", NULL);
+
+	case CTDB_CONTROL_RUN_EVENTSCRIPTS:
+		return control_not_implemented("RUN_EVENTSCRIPTS", NULL);
+
+	case CTDB_CONTROL_DISABLE_MONITOR:
+		return control_not_implemented("DISABLE_MONITOR", NULL);
+
+	case CTDB_CONTROL_SHUTDOWN:
+		DEBUG(DEBUG_NOTICE,("Received SHUTDOWN command.\n"));
+		ctdb_shutdown_sequence(ctdb, 0);
+		/* In case above returns due to duplicate shutdown */
+		return 0;
+
+	case CTDB_CONTROL_TAKEOVER_IPv4:
+		return control_not_implemented("TAKEOVER_IPv4", "TAKEOVER_IP");
+
+	case CTDB_CONTROL_TAKEOVER_IP:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_public_ip));
+		return ctdb_control_takeover_ip(ctdb, c, indata, async_reply);
+
+	case CTDB_CONTROL_RELEASE_IPv4:
+		return control_not_implemented("RELEASE_IPv4", "RELEASE_IP");
+
+	case CTDB_CONTROL_RELEASE_IP:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_public_ip));
+		return ctdb_control_release_ip(ctdb, c, indata, async_reply);
+
+	case CTDB_CONTROL_IPREALLOCATED:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_ipreallocated(ctdb, c, async_reply);
+
+	case CTDB_CONTROL_GET_PUBLIC_IPSv4:
+		return control_not_implemented("GET_PUBLIC_IPSv4",
+					       "GET_PUBLIC_IPS");
+
+	case CTDB_CONTROL_GET_PUBLIC_IPS:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_get_public_ips(ctdb, c, outdata);
+
+	case CTDB_CONTROL_TCP_CLIENT:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_connection));
+		return ctdb_control_tcp_client(ctdb, client_id, indata);
+
+	case CTDB_CONTROL_STARTUP: 
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_startup(ctdb, srcnode);
+
+	case CTDB_CONTROL_TCP_ADD: 
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_connection));
+		return ctdb_control_tcp_add(ctdb, indata, false);
+
+	case CTDB_CONTROL_TCP_ADD_DELAYED_UPDATE: 
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_connection));
+		return ctdb_control_tcp_add(ctdb, indata, true);
+
+	case CTDB_CONTROL_TCP_REMOVE: 
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_connection));
+		return ctdb_control_tcp_remove(ctdb, indata);
+
+	case CTDB_CONTROL_SET_TUNABLE:
+		return ctdb_control_set_tunable(ctdb, indata);
+
+	case CTDB_CONTROL_GET_TUNABLE:
+		return ctdb_control_get_tunable(ctdb, indata, outdata);
+
+	case CTDB_CONTROL_LIST_TUNABLES:
+		return ctdb_control_list_tunables(ctdb, outdata);
+
+	case CTDB_CONTROL_MODIFY_FLAGS:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_node_flag_change));
+		return ctdb_control_modflags(ctdb, indata);
+
+	case CTDB_CONTROL_KILL_TCP:
+		return control_not_implemented("KILL_TCP", NULL);
+
+	case CTDB_CONTROL_GET_TCP_TICKLE_LIST:
+		CHECK_CONTROL_DATA_SIZE(sizeof(ctdb_sock_addr));
+		return ctdb_control_get_tcp_tickle_list(ctdb, indata, outdata);
+
+	case CTDB_CONTROL_SET_TCP_TICKLE_LIST:
+		/* data size is verified in the called function */
+		return ctdb_control_set_tcp_tickle_list(ctdb, indata);
+
+	case CTDB_CONTROL_REGISTER_SERVER_ID:
+		return control_not_implemented("REGISTER_SERVER_ID", NULL);
+
+	case CTDB_CONTROL_UNREGISTER_SERVER_ID:
+		return control_not_implemented("UNREGISTER_SERVER_ID", NULL);
+
+	case CTDB_CONTROL_CHECK_SERVER_ID:
+		return control_not_implemented("CHECK_SERVER_ID", NULL);
+
+	case CTDB_CONTROL_GET_SERVER_ID_LIST:
+		return control_not_implemented("SERVER_ID_LIST", NULL);
+
+	case CTDB_CONTROL_PERSISTENT_STORE:
+		return control_not_implemented("PERSISTENT_STORE", NULL);
+
+	case CTDB_CONTROL_UPDATE_RECORD:
+		return ctdb_control_update_record(ctdb, c, indata, async_reply);
+
+	case CTDB_CONTROL_SEND_GRATUITOUS_ARP:
+		return ctdb_control_send_gratious_arp(ctdb, indata);
+
+	case CTDB_CONTROL_TRANSACTION_START:
+		return control_not_implemented("TRANSACTION_START", NULL);
+
+	case CTDB_CONTROL_TRANSACTION_COMMIT:
+		return control_not_implemented("TRANSACTION_COMMIT", NULL);
+
+	case CTDB_CONTROL_WIPE_DATABASE:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_transdb));
+		return ctdb_control_wipe_database(ctdb, indata);
+
+	case CTDB_CONTROL_UPTIME:
+		return ctdb_control_uptime(ctdb, outdata);
+
+	case CTDB_CONTROL_START_RECOVERY:
+		return ctdb_control_start_recovery(ctdb, c, async_reply);
+
+	case CTDB_CONTROL_END_RECOVERY:
+		return ctdb_control_end_recovery(ctdb, c, async_reply);
+
+	case CTDB_CONTROL_TRY_DELETE_RECORDS:
+		return ctdb_control_try_delete_records(ctdb, indata, outdata);
+
+	case CTDB_CONTROL_ADD_PUBLIC_IP:
+		return ctdb_control_add_public_address(ctdb, indata);
+
+	case CTDB_CONTROL_DEL_PUBLIC_IP:
+		return ctdb_control_del_public_address(ctdb, indata);
+
+	case CTDB_CONTROL_GET_CAPABILITIES:
+		return ctdb_control_get_capabilities(ctdb, outdata);
+
+	case CTDB_CONTROL_START_PERSISTENT_UPDATE:
+		return ctdb_control_start_persistent_update(ctdb, c, indata);
+
+	case CTDB_CONTROL_CANCEL_PERSISTENT_UPDATE:
+		return ctdb_control_cancel_persistent_update(ctdb, c, indata);
+
+	case CTDB_CONTROL_TRANS2_COMMIT:
+	case CTDB_CONTROL_TRANS2_COMMIT_RETRY:
+		return control_not_implemented("TRANS2_COMMIT", "TRANS3_COMMIT");
+
+	case CTDB_CONTROL_TRANS2_ERROR:
+		return control_not_implemented("TRANS2_ERROR", NULL);
+
+	case CTDB_CONTROL_TRANS2_FINISHED:
+		return control_not_implemented("TRANS2_FINISHED", NULL);
+
+	case CTDB_CONTROL_TRANS2_ACTIVE:
+		return control_not_implemented("TRANS2_ACTIVE", NULL);
+
+	case CTDB_CONTROL_TRANS3_COMMIT:
+		return ctdb_control_trans3_commit(ctdb, c, indata, async_reply);
+
+	case CTDB_CONTROL_RECD_PING:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_recd_ping(ctdb);
+
+	case CTDB_CONTROL_GET_EVENT_SCRIPT_STATUS:
+		return control_not_implemented("GET_EVENT_SCRIPT_STATUS", NULL);
+
+	case CTDB_CONTROL_RECD_RECLOCK_LATENCY:
+		CHECK_CONTROL_DATA_SIZE(sizeof(double));
+		CTDB_UPDATE_RECLOCK_LATENCY(ctdb, "recd reclock", reclock.recd, *((double *)indata.dptr));
+		return 0;
+	case CTDB_CONTROL_GET_RECLOCK_FILE:
+		CHECK_CONTROL_DATA_SIZE(0);
+		if (ctdb->recovery_lock != NULL) {
+			outdata->dptr  = discard_const(ctdb->recovery_lock);
+			outdata->dsize = strlen(ctdb->recovery_lock) + 1;
+		}
+		return 0;
+	case CTDB_CONTROL_SET_RECLOCK_FILE:
+		return control_not_implemented("SET_RECLOCK", NULL);
+
+	case CTDB_CONTROL_STOP_NODE:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_stop_node(ctdb);
+
+	case CTDB_CONTROL_CONTINUE_NODE:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_continue_node(ctdb);
+
+	case CTDB_CONTROL_SET_NATGWSTATE:
+		return control_not_implemented("SET_NATGWSTATE", NULL);
+
+	case CTDB_CONTROL_SET_LMASTERROLE: {
+		uint32_t lmasterrole;
+
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));		
+		lmasterrole = *(uint32_t *)indata.dptr;
+		if (lmasterrole == 0) {
+			ctdb->capabilities &= ~CTDB_CAP_LMASTER;
+		} else {
+			ctdb->capabilities |= CTDB_CAP_LMASTER;
+		}
+		return 0;
+	}
+
+	case CTDB_CONTROL_SET_RECMASTERROLE: {
+		uint32_t recmasterrole;
+
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));		
+		recmasterrole = *(uint32_t *)indata.dptr;
+		if (recmasterrole == 0) {
+			ctdb->capabilities &= ~CTDB_CAP_RECMASTER;
+		} else {
+			ctdb->capabilities |= CTDB_CAP_RECMASTER;
+		}
+		return 0;
+	}
+
+	case CTDB_CONTROL_ENABLE_SCRIPT:
+		return control_not_implemented("ENABLE_SCRIPT", NULL);
+
+	case CTDB_CONTROL_DISABLE_SCRIPT:
+		return control_not_implemented("DISABLE_SCRIPT", NULL);
+
+	case CTDB_CONTROL_SET_BAN_STATE:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_ban_state));
+		return ctdb_control_set_ban_state(ctdb, indata);
+
+	case CTDB_CONTROL_GET_BAN_STATE:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_get_ban_state(ctdb, outdata);
+
+	case CTDB_CONTROL_SET_DB_PRIORITY:
+		return control_not_implemented("SET_DB_PRIORITY", NULL);
+
+	case CTDB_CONTROL_GET_DB_PRIORITY:
+		return control_not_implemented("GET_DB_PRIORITY", NULL);
+
+	case CTDB_CONTROL_TRANSACTION_CANCEL:
+		return control_not_implemented("TRANSACTION_CANCEL", NULL);
+
+	case CTDB_CONTROL_REGISTER_NOTIFY:
+		return ctdb_control_register_notify(ctdb, client_id, indata);
+
+	case CTDB_CONTROL_DEREGISTER_NOTIFY:
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint64_t));
+		return ctdb_control_deregister_notify(ctdb, client_id, indata);
+
+	case CTDB_CONTROL_GET_LOG:
+		return control_not_implemented("GET_LOG", NULL);
+
+	case CTDB_CONTROL_CLEAR_LOG:
+		return control_not_implemented("CLEAR_LOG", NULL);
+
+	case CTDB_CONTROL_GET_DB_SEQNUM:
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint64_t));
+		return ctdb_control_get_db_seqnum(ctdb, indata, outdata);
+
+	case CTDB_CONTROL_DB_SET_HEALTHY:
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
+		return ctdb_control_db_set_healthy(ctdb, indata);
+
+	case CTDB_CONTROL_DB_GET_HEALTH:
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
+		return ctdb_control_db_get_health(ctdb, indata, outdata);
+
+	case CTDB_CONTROL_GET_PUBLIC_IP_INFO:
+		CHECK_CONTROL_DATA_SIZE(sizeof(ctdb_sock_addr));
+		return ctdb_control_get_public_ip_info(ctdb, c, indata, outdata);
+
+	case CTDB_CONTROL_GET_IFACES:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_get_ifaces(ctdb, c, outdata);
+
+	case CTDB_CONTROL_SET_IFACE_LINK_STATE:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_iface));
+		return ctdb_control_set_iface_link(ctdb, c, indata);
+
+	case CTDB_CONTROL_GET_STAT_HISTORY:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_get_stat_history(ctdb, c, outdata);
+
+	case CTDB_CONTROL_SCHEDULE_FOR_DELETION: {
+		struct ctdb_control_schedule_for_deletion *d;
+		size_t size = offsetof(struct ctdb_control_schedule_for_deletion, key);
+		CHECK_CONTROL_MIN_DATA_SIZE(size);
+		d = (struct ctdb_control_schedule_for_deletion *)indata.dptr;
+		size += d->keylen;
+		CHECK_CONTROL_DATA_SIZE(size);
+		return ctdb_control_schedule_for_deletion(ctdb, indata);
+	}
+	case CTDB_CONTROL_GET_DB_STATISTICS:
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
+		return ctdb_control_get_db_statistics(ctdb, *(uint32_t *)indata.dptr, outdata);
+
+	case CTDB_CONTROL_RELOAD_PUBLIC_IPS:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_reload_public_ips(ctdb, c, async_reply);
+
+	case CTDB_CONTROL_RECEIVE_RECORDS:
+		return control_not_implemented("RECEIVE_RECORDS", NULL);
+
+	case CTDB_CONTROL_DB_DETACH:
+		return ctdb_control_db_detach(ctdb, indata, client_id);
+
+	case CTDB_CONTROL_DB_FREEZE:
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
+		return ctdb_control_db_freeze(ctdb, c, *(uint32_t *)indata.dptr,
+					      async_reply);
+
+	case CTDB_CONTROL_DB_THAW:
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
+		return ctdb_control_db_thaw(ctdb, *(uint32_t *)indata.dptr);
+
+	case CTDB_CONTROL_DB_TRANSACTION_START:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_transdb));
+		return ctdb_control_db_transaction_start(ctdb, indata);
+
+	case CTDB_CONTROL_DB_TRANSACTION_COMMIT:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_transdb));
+		return ctdb_control_db_transaction_commit(ctdb, indata);
+
+	case CTDB_CONTROL_DB_TRANSACTION_CANCEL:
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
+		return ctdb_control_db_transaction_cancel(ctdb, indata);
+
+	case CTDB_CONTROL_DB_PULL:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_pulldb_ext));
+		return ctdb_control_db_pull(ctdb, c, indata, outdata);
+
+	case CTDB_CONTROL_DB_PUSH_START:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_pulldb_ext));
+		return ctdb_control_db_push_start(ctdb, indata);
+
+	case CTDB_CONTROL_DB_PUSH_CONFIRM:
+		CHECK_CONTROL_DATA_SIZE(sizeof(uint32_t));
+		return ctdb_control_db_push_confirm(ctdb, indata, outdata);
+
+	case CTDB_CONTROL_DB_OPEN_FLAGS: {
+		uint32_t db_id;
+		struct ctdb_db_context *ctdb_db;
+		int tdb_flags;
+
+		CHECK_CONTROL_DATA_SIZE(sizeof(db_id));
+		db_id = *(uint32_t *)indata.dptr;
+		ctdb_db = find_ctdb_db(ctdb, db_id);
+		if (ctdb_db == NULL) {
+			return -1;
+		}
+
+		tdb_flags = tdb_get_flags(ctdb_db->ltdb->tdb);
+
+		outdata->dptr = talloc_size(outdata, sizeof(tdb_flags));
+		if (outdata->dptr == NULL) {
+			return -1;
+		}
+
+		outdata->dsize = sizeof(tdb_flags);
+		memcpy(outdata->dptr, &tdb_flags, outdata->dsize);
+		return 0;
+	}
+
+	case CTDB_CONTROL_CHECK_PID_SRVID:
+		CHECK_CONTROL_DATA_SIZE((sizeof(pid_t) + sizeof(uint64_t)));
+		return ctdb_control_check_pid_srvid(ctdb, indata);
+
+	case CTDB_CONTROL_TUNNEL_REGISTER:
+		return ctdb_control_tunnel_register(ctdb, client_id, srvid);
+
+	case CTDB_CONTROL_TUNNEL_DEREGISTER:
+		return ctdb_control_tunnel_deregister(ctdb, client_id, srvid);
+
+	case CTDB_CONTROL_VACUUM_FETCH:
+		return ctdb_control_vacuum_fetch(ctdb, indata);
+
+	case CTDB_CONTROL_DB_VACUUM: {
+		struct ctdb_db_vacuum db_vacuum;
+
+		CHECK_CONTROL_DATA_SIZE(ctdb_db_vacuum_len(&db_vacuum));
+		return ctdb_control_db_vacuum(ctdb, c, indata, async_reply);
+	}
+	case CTDB_CONTROL_ECHO_DATA: {
+		return ctdb_control_echo_data(ctdb, c, indata, async_reply);
+	}
+
+	case CTDB_CONTROL_DISABLE_NODE:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_disable_node(ctdb);
+
+	case CTDB_CONTROL_ENABLE_NODE:
+		CHECK_CONTROL_DATA_SIZE(0);
+		return ctdb_control_enable_node(ctdb);
+
+	case CTDB_CONTROL_TCP_CLIENT_DISCONNECTED:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_connection));
+		return ctdb_control_tcp_client_disconnected(ctdb, client_id, indata);
+
+	case CTDB_CONTROL_TCP_CLIENT_PASSED:
+		CHECK_CONTROL_DATA_SIZE(sizeof(struct ctdb_connection));
+		return ctdb_control_tcp_client_passed(ctdb, client_id, indata);
+
+	default:
+		DEBUG(DEBUG_CRIT,(__location__ " Unknown CTDB control opcode %u\n", opcode));
+		return -1;
+	}
+}
+
+/*
+  send a reply for a ctdb control
+ */
+void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control_old *c,
+				TDB_DATA *outdata, int32_t status, const char *errormsg)
+{
+	struct ctdb_reply_control_old *r;
+	size_t len;
+	
+	/* some controls send no reply */
+	if (c->flags & CTDB_CTRL_FLAG_NOREPLY) {
+		return;
+	}
+
+	len = offsetof(struct ctdb_reply_control_old, data) + (outdata?outdata->dsize:0);
+	if (errormsg) {
+		len += strlen(errormsg);
+	}
+	r = ctdb_transport_allocate(ctdb, ctdb, CTDB_REPLY_CONTROL, len, struct ctdb_reply_control_old);
+	if (r == NULL) {
+		DEBUG(DEBUG_ERR,(__location__ "Unable to allocate transport - OOM or transport is down\n"));
+		return;
+	}
+
+	r->hdr.destnode     = c->hdr.srcnode;
+	r->hdr.reqid        = c->hdr.reqid;
+	r->status           = status;
+	r->datalen          = outdata?outdata->dsize:0;
+	if (outdata && outdata->dsize) {
+		memcpy(&r->data[0], outdata->dptr, outdata->dsize);
+	}
+	if (errormsg) {
+		r->errorlen = strlen(errormsg);
+		memcpy(&r->data[r->datalen], errormsg, r->errorlen);
+	}
+
+	ctdb_queue_packet_opcode(ctdb, &r->hdr, c->opcode);	
+
+	talloc_free(r);
+}
+
+/*
+  called when a CTDB_REQ_CONTROL packet comes in
+*/
+void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr)
+{
+	struct ctdb_req_control_old *c = (struct ctdb_req_control_old *)hdr;
+	TDB_DATA data, *outdata;
+	int32_t status;
+	bool async_reply = false;
+	const char *errormsg = NULL;
+
+	data.dptr = &c->data[0];
+	data.dsize = c->datalen;
+
+	outdata = talloc_zero(c, TDB_DATA);
+
+	status = ctdb_control_dispatch(ctdb, c, data, outdata, hdr->srcnode, 
+				       &errormsg, &async_reply);
+
+	if (!async_reply) {
+		ctdb_request_control_reply(ctdb, c, outdata, status, errormsg);
+	}
+}
+
+/*
+  called when a CTDB_REPLY_CONTROL packet comes in
+*/
+void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr)
+{
+	struct ctdb_reply_control_old *c = (struct ctdb_reply_control_old *)hdr;
+	TDB_DATA data;
+	struct ctdb_control_state *state;
+	const char *errormsg = NULL;
+
+	state = reqid_find(ctdb->idr, hdr->reqid, struct ctdb_control_state);
+	if (state == NULL) {
+		DEBUG(DEBUG_ERR,("pnn %u Invalid reqid %u in ctdb_reply_control\n",
+			 ctdb->pnn, hdr->reqid));
+		return;
+	}
+
+	if (hdr->reqid != state->reqid) {
+		/* we found a record  but it was the wrong one */
+		DEBUG(DEBUG_ERR, ("Dropped orphaned control reply with reqid:%u\n", hdr->reqid));
+		return;
+	}
+
+	data.dptr = &c->data[0];
+	data.dsize = c->datalen;
+	if (c->errorlen) {
+		errormsg = talloc_strndup(state, 
+					  (char *)&c->data[c->datalen], c->errorlen);
+	}
+
+	/* make state a child of the packet, so it goes away when the packet
+	   is freed. */
+	talloc_steal(hdr, state);
+
+	state->callback(ctdb, c->status, data, errormsg, state->private_data);
+}
+
+static int ctdb_control_destructor(struct ctdb_control_state *state)
+{
+	reqid_remove(state->ctdb->idr, state->reqid);
+	return 0;
+}
+
+/*
+  handle a timeout of a control
+ */
+static void ctdb_control_timeout(struct tevent_context *ev,
+				 struct tevent_timer *te,
+				 struct timeval t, void *private_data)
+{
+	struct ctdb_control_state *state = talloc_get_type(private_data, struct ctdb_control_state);
+	TALLOC_CTX *tmp_ctx = talloc_new(ev);
+
+	CTDB_INCREMENT_STAT(state->ctdb, timeouts.control);
+
+	talloc_steal(tmp_ctx, state);
+
+	state->callback(state->ctdb, -1, tdb_null,
+			"ctdb_control timed out", 
+			state->private_data);
+	talloc_free(tmp_ctx);
+}
+
+
+/*
+  send a control message to a node
+ */
+int ctdb_daemon_send_control(struct ctdb_context *ctdb, uint32_t destnode,
+			     uint64_t srvid, uint32_t opcode, uint32_t client_id,
+			     uint32_t flags,
+			     TDB_DATA data,
+			     ctdb_control_callback_fn_t callback,
+			     void *private_data)
+{
+	struct ctdb_req_control_old *c;
+	struct ctdb_control_state *state;
+	size_t len;
+
+	if (ctdb->methods == NULL) {
+		DEBUG(DEBUG_INFO,(__location__ " Failed to send control. Transport is DOWN\n"));
+		return -1;
+	}
+
+	if (((destnode == CTDB_BROADCAST_ACTIVE) ||
+	     (destnode == CTDB_BROADCAST_ALL) ||
+	     (destnode == CTDB_BROADCAST_CONNECTED)) && 
+	    !(flags & CTDB_CTRL_FLAG_NOREPLY)) {
+		DEBUG(DEBUG_CRIT,("Attempt to broadcast control without NOREPLY\n"));
+		return -1;
+	}
+
+	if (destnode != CTDB_BROADCAST_ACTIVE &&
+	    destnode != CTDB_BROADCAST_ALL && 
+	    destnode != CTDB_BROADCAST_CONNECTED && 
+	    (!ctdb_validate_pnn(ctdb, destnode) || 
+	     (ctdb->nodes[destnode]->flags & NODE_FLAGS_DISCONNECTED))) {
+		if (!(flags & CTDB_CTRL_FLAG_NOREPLY)) {
+			callback(ctdb, -1, tdb_null, "ctdb_control to disconnected node", private_data);
+		}
+		return 0;
+	}
+
+	/* the state is made a child of private_data if possible. This means any reply
+	   will be discarded if the private_data goes away */
+	state = talloc(private_data?private_data:ctdb, struct ctdb_control_state);
+	CTDB_NO_MEMORY(ctdb, state);
+
+	state->reqid = reqid_new(ctdb->idr, state);
+	state->callback = callback;
+	state->private_data = private_data;
+	state->ctdb = ctdb;
+	state->flags = flags;
+
+	talloc_set_destructor(state, ctdb_control_destructor);
+
+	len = offsetof(struct ctdb_req_control_old, data) + data.dsize;
+	c = ctdb_transport_allocate(ctdb, state, CTDB_REQ_CONTROL, len, 
+				    struct ctdb_req_control_old);
+	CTDB_NO_MEMORY(ctdb, c);
+	talloc_set_name_const(c, "ctdb_req_control packet");
+
+	c->hdr.destnode     = destnode;
+	c->hdr.reqid        = state->reqid;
+	c->opcode           = opcode;
+	c->client_id        = client_id;
+	c->flags            = flags;
+	c->srvid            = srvid;
+	c->datalen          = data.dsize;
+	if (data.dsize) {
+		memcpy(&c->data[0], data.dptr, data.dsize);
+	}
+
+	ctdb_queue_packet(ctdb, &c->hdr);	
+
+	if (flags & CTDB_CTRL_FLAG_NOREPLY) {
+		talloc_free(state);
+		return 0;
+	}
+
+	if (ctdb->tunable.control_timeout) {
+		tevent_add_timer(ctdb->ev, state,
+				 timeval_current_ofs(ctdb->tunable.control_timeout, 0),
+				 ctdb_control_timeout, state);
+	}
+
+	talloc_free(c);
+	return 0;
+}