r23806: update Samba4 with the latest ctdb code.

This doesn't get the ctdb code fully working in Samba4, it just gets
it building and not breaking non-clustered use of Samba. It will take
a bit longer to update some of the calling ctdb_cluster.c code to make
it work correctly in Samba4.

Note also that Samba4 now only links to the client portion of
ctdb. For the moment I am leaving the ctdbd as a separate daemon,
which you install separately from http://ctdb.samba.org/.
(This used to be commit b196077cbb55cbecad87065133c2d67198e31066)

1 files changed, 204 insertions, 49 deletions

diff --git a/source4/cluster/ctdb/include/ctdb.h b/source4/cluster/ctdb/include/ctdb.h
index 9f7f65e8b0..6c25b7fa9d 100644
--- a/source4/cluster/ctdb/include/ctdb.h
+++ b/source4/cluster/ctdb/include/ctdb.h
@@ -3,18 +3,18 @@
 
    Copyright (C) Andrew Tridgell  2006
 
-   This library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 3 of the License, or (at your option) any later version.
-
-   This library is distributed in the hope that it will be useful,
+   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
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+   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/>.
 */
 
 #ifndef _CTDB_H
@@ -48,14 +48,53 @@ struct ctdb_call_info {
 /*
   ctdb flags
 */
-#define CTDB_FLAG_SELF_CONNECT (1<<0)
 #define CTDB_FLAG_TORTURE      (1<<1)
 
-
 /* 
    a message handler ID meaning "give me all messages"
  */
-#define CTDB_SRVID_ALL 0xFFFFFFFF
+#define CTDB_SRVID_ALL (~(uint64_t)0)
+
+/*
+  srvid type : RECOVERY
+*/
+#define CTDB_SRVID_RECOVERY	0xF100000000000000LL
+
+/* 
+   a message handler ID meaning that the cluster has been reconfigured
+ */
+#define CTDB_SRVID_RECONFIGURE 0xF200000000000000LL
+
+/* 
+   a message handler ID meaning that an IP address has been released
+ */
+#define CTDB_SRVID_RELEASE_IP 0xF300000000000000LL
+
+/* 
+   a message ID meaning that a nodes flags have changed
+ */
+#define CTDB_SRVID_NODE_FLAGS_CHANGED 0xF400000000000000LL
+
+/* 
+   a message ID meaning that a node should be banned
+ */
+#define CTDB_SRVID_BAN_NODE 0xF500000000000000LL
+
+/* 
+   a message ID meaning that a node should be unbanned
+ */
+#define CTDB_SRVID_UNBAN_NODE 0xF600000000000000LL
+
+
+/* used on the domain socket, send a pdu to the local daemon */
+#define CTDB_CURRENT_NODE     0xF0000001
+/* send a broadcast to all nodes in the cluster, active or not */
+#define CTDB_BROADCAST_ALL    0xF0000002
+/* send a broadcast to all nodes in the current vnn map */
+#define CTDB_BROADCAST_VNNMAP 0xF0000003
+/* send a broadcast to all connected nodes */
+#define CTDB_BROADCAST_CONNECTED 0xF0000004
+
 
 struct event_context;
 
@@ -80,11 +119,6 @@ int ctdb_set_tdb_dir(struct ctdb_context *ctdb, const char *dir);
 void ctdb_set_flags(struct ctdb_context *ctdb, unsigned flags);
 
 /*
-  clear some flags
-*/
-void ctdb_clear_flags(struct ctdb_context *ctdb, unsigned flags);
-
-/*
   set max acess count before a dmaster migration
 */
 void ctdb_set_max_lacount(struct ctdb_context *ctdb, unsigned count);
@@ -94,6 +128,8 @@ void ctdb_set_max_lacount(struct ctdb_context *ctdb, unsigned count);
 */
 int ctdb_set_address(struct ctdb_context *ctdb, const char *address);
 
+int ctdb_set_socketname(struct ctdb_context *ctdb, const char *socketname);
+
 /*
   tell ctdb what nodes are available. This takes a filename, which will contain
   1 node address per line, in a transport specific format
@@ -104,12 +140,12 @@ int ctdb_set_nlist(struct ctdb_context *ctdb, const char *nlist);
   start the ctdb protocol
 */
 int ctdb_start(struct ctdb_context *ctdb);
+int ctdb_start_daemon(struct ctdb_context *ctdb, bool do_fork);
 
 /*
   attach to a ctdb database
 */
-struct ctdb_db_context *ctdb_attach(struct ctdb_context *ctdb, const char *name, int tdb_flags, 
-				    int open_flags, mode_t mode);
+struct ctdb_db_context *ctdb_attach(struct ctdb_context *ctdb, const char *name);
 
 /*
   find an attached ctdb_db handle given a name
@@ -127,7 +163,7 @@ typedef int (*ctdb_fn_t)(struct ctdb_call_info *);
 /*
   setup a ctdb call function
 */
-int ctdb_set_call(struct ctdb_db_context *ctdb_db, ctdb_fn_t fn, int id);
+int ctdb_set_call(struct ctdb_db_context *ctdb_db, ctdb_fn_t fn, uint32_t id);
 
 
 
@@ -138,11 +174,6 @@ int ctdb_set_call(struct ctdb_db_context *ctdb_db, ctdb_fn_t fn, int id);
 int ctdb_call(struct ctdb_db_context *ctdb_db, struct ctdb_call *call);
 
 /*
-  wait for all nodes to be connected - useful for test code
-*/
-void ctdb_connect_wait(struct ctdb_context *ctdb);
-
-/*
   initiate an ordered ctdb cluster shutdown
   this function will never return
 */
@@ -157,9 +188,9 @@ uint32_t ctdb_get_vnn(struct ctdb_context *ctdb);
 uint32_t ctdb_get_num_nodes(struct ctdb_context *ctdb);
 
 /* setup a handler for ctdb messages */
-typedef void (*ctdb_message_fn_t)(struct ctdb_context *, uint32_t srvid, 
+typedef void (*ctdb_message_fn_t)(struct ctdb_context *, uint64_t srvid, 
 				  TDB_DATA data, void *);
-int ctdb_set_message_handler(struct ctdb_context *ctdb, uint32_t srvid, 
+int ctdb_set_message_handler(struct ctdb_context *ctdb, uint64_t srvid, 
 			     ctdb_message_fn_t handler,
 			     void *private_data);
 
@@ -170,46 +201,170 @@ int ctdb_call_recv(struct ctdb_client_call_state *state, struct ctdb_call *call)
 
 /* send a ctdb message */
 int ctdb_send_message(struct ctdb_context *ctdb, uint32_t vnn,
-		      uint32_t srvid, TDB_DATA data);
+		      uint64_t srvid, TDB_DATA data);
 
 
 /* 
    Fetch a ctdb record from a remote node
  . Underneath this will force the
    dmaster for the record to be moved to the local node. 
-
 */
 struct ctdb_record_handle *ctdb_fetch_lock(struct ctdb_db_context *ctdb_db, TALLOC_CTX *mem_ctx, 
 					   TDB_DATA key, TDB_DATA *data);
 
-
-/*
-  do a fetch lock from a client to the local daemon
-*/
-#define FETCH_LOCK_SUCCESS		0
-#define FETCH_LOCK_LOCKFAILED		1
-#define FETCH_LOCK_FETCHFAILED		2
-#define FETCH_LOCK_DMASTERFAILED	3
-
-int ctdb_client_fetch_lock(struct ctdb_db_context *ctdb_db, 
-						  TALLOC_CTX *mem_ctx, 
-						  TDB_DATA key, TDB_DATA *data);
-
-
 int ctdb_record_store(struct ctdb_record_handle *h, TDB_DATA data);
 
 int ctdb_register_message_handler(struct ctdb_context *ctdb, 
 				  TALLOC_CTX *mem_ctx,
-				  uint32_t srvid,
+				  uint64_t srvid,
 				  ctdb_message_fn_t handler,
 				  void *private_data);
 
 struct ctdb_db_context *find_ctdb_db(struct ctdb_context *ctdb, uint32_t id);
 
 
-struct ctdb_context *ctdb_cmdline_client(struct event_context *ev, const char *ctdb_socket);
+struct ctdb_context *ctdb_cmdline_client(struct event_context *ev);
+
+struct ctdb_statistics;
+int ctdb_ctrl_statistics(struct ctdb_context *ctdb, uint32_t destnode, struct ctdb_statistics *status);
+
+int ctdb_ctrl_shutdown(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode);
+
+struct ctdb_vnn_map;
+int ctdb_ctrl_getvnnmap(struct ctdb_context *ctdb, 
+		struct timeval timeout, uint32_t destnode, 
+		TALLOC_CTX *mem_ctx, struct ctdb_vnn_map **vnnmap);
+int ctdb_ctrl_setvnnmap(struct ctdb_context *ctdb,
+		struct timeval timeout, uint32_t destnode, 
+		TALLOC_CTX *mem_ctx, struct ctdb_vnn_map *vnnmap);
+
+/* table that contains a list of all dbids on a node
+ */
+struct ctdb_dbid_map {
+	uint32_t num;
+	uint32_t dbids[1];
+};
+int ctdb_ctrl_getdbmap(struct ctdb_context *ctdb, 
+	struct timeval timeout, uint32_t destnode, 
+	TALLOC_CTX *mem_ctx, struct ctdb_dbid_map **dbmap);
+
+
+struct ctdb_node_map;
+
+int ctdb_ctrl_getnodemap(struct ctdb_context *ctdb, 
+		    struct timeval timeout, uint32_t destnode, 
+		    TALLOC_CTX *mem_ctx, struct ctdb_node_map **nodemap);
+
+struct ctdb_key_list {
+	uint32_t dbid;
+	uint32_t num;
+	TDB_DATA *keys;
+	struct ctdb_ltdb_header *headers;
+	TDB_DATA *data;
+};
+int ctdb_ctrl_pulldb(struct ctdb_context *ctdb, uint32_t destnode, uint32_t dbid, uint32_t lmaster, TALLOC_CTX *mem_ctx, struct ctdb_key_list *keys);
+int ctdb_ctrl_copydb(struct ctdb_context *ctdb, 
+	struct timeval timeout, uint32_t sourcenode, 
+	uint32_t destnode, uint32_t dbid, uint32_t lmaster, 
+	TALLOC_CTX *mem_ctx);
+
+int ctdb_ctrl_getdbpath(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t dbid, TALLOC_CTX *mem_ctx, const char **path);
+int ctdb_ctrl_getdbname(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t dbid, TALLOC_CTX *mem_ctx, const char **name);
+int ctdb_ctrl_createdb(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, TALLOC_CTX *mem_ctx, const char *name);
+
+int ctdb_ctrl_process_exists(struct ctdb_context *ctdb, uint32_t destnode, pid_t pid);
+
+int ctdb_ctrl_ping(struct ctdb_context *ctdb, uint32_t destnode);
+
+int ctdb_ctrl_get_config(struct ctdb_context *ctdb);
+
+int ctdb_ctrl_get_debuglevel(struct ctdb_context *ctdb, uint32_t destnode, uint32_t *level);
+int ctdb_ctrl_set_debuglevel(struct ctdb_context *ctdb, uint32_t destnode, uint32_t level);
+
+/*
+  change dmaster for all keys in the database to the new value
+ */
+int ctdb_ctrl_setdmaster(struct ctdb_context *ctdb, 
+	struct timeval timeout, uint32_t destnode, 
+	TALLOC_CTX *mem_ctx, uint32_t dbid, uint32_t dmaster);
+
+/*
+  write a record on a specific db (this implicitely updates dmaster of the record to locally be the vnn of the node where the control is executed on)
+ */
+int ctdb_ctrl_write_record(struct ctdb_context *ctdb, uint32_t destnode, TALLOC_CTX *mem_ctx, uint32_t dbid, TDB_DATA key, TDB_DATA data);
+
+#define CTDB_RECOVERY_NORMAL		0
+#define CTDB_RECOVERY_ACTIVE		1
+
+/*
+  get the recovery mode of a remote node
+ */
+int ctdb_ctrl_getrecmode(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t *recmode);
+/*
+  set the recovery mode of a remote node
+ */
+int ctdb_ctrl_setrecmode(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t recmode);
+/*
+  get the monitoring mode of a remote node
+ */
+int ctdb_ctrl_getmonmode(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t *monmode);
+/*
+  set the monitoringmode of a remote node
+ */
+int ctdb_ctrl_setmonmode(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t monmode);
+
+/*
+  get the recovery master of a remote node
+ */
+int ctdb_ctrl_getrecmaster(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t *recmaster);
+/*
+  set the recovery master of a remote node
+ */
+int ctdb_ctrl_setrecmaster(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t recmaster);
+
+uint32_t *ctdb_get_connected_nodes(struct ctdb_context *ctdb, 
+				   struct timeval timeout, 
+				   TALLOC_CTX *mem_ctx,
+				   uint32_t *num_nodes);
+
+int ctdb_statistics_reset(struct ctdb_context *ctdb, uint32_t destnode);
+
+int ctdb_set_logfile(struct ctdb_context *ctdb, const char *logfile);
+
+typedef int (*ctdb_traverse_func)(struct ctdb_context *, TDB_DATA, TDB_DATA, void *);
+int ctdb_traverse(struct ctdb_db_context *ctdb_db, ctdb_traverse_func fn, void *private_data);
+
+int ctdb_dump_db(struct ctdb_db_context *ctdb_db, FILE *f);
+
+/*
+  get the pid of a ctdb daemon
+ */
+int ctdb_ctrl_getpid(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode, uint32_t *pid);
+
+int ctdb_ctrl_freeze(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode);
+int ctdb_ctrl_thaw(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode);
+
+int ctdb_ctrl_getvnn(struct ctdb_context *ctdb, struct timeval timeout, uint32_t destnode);
+
+int ctdb_ctrl_get_tunable(struct ctdb_context *ctdb, 
+			  struct timeval timeout, 
+			  uint32_t destnode,
+			  const char *name, uint32_t *value);
+
+int ctdb_ctrl_set_tunable(struct ctdb_context *ctdb, 
+			  struct timeval timeout, 
+			  uint32_t destnode,
+			  const char *name, uint32_t value);
+
+int ctdb_ctrl_list_tunables(struct ctdb_context *ctdb, 
+			    struct timeval timeout, 
+			    uint32_t destnode,
+			    TALLOC_CTX *mem_ctx,
+			    const char ***list, uint32_t *count);
 
-struct ctdb_status;
-int ctdb_status(struct ctdb_context *ctdb, struct ctdb_status *status);
+int ctdb_ctrl_modflags(struct ctdb_context *ctdb, 
+		       struct timeval timeout, 
+		       uint32_t destnode, 
+		       uint32_t set, uint32_t clear);
 
 #endif