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-rw-r--r--source4/cluster/ctdb/include/ctdb.h253
-rw-r--r--source4/cluster/ctdb/include/ctdb_private.h715
-rw-r--r--source4/cluster/ctdb/include/includes.h5
3 files changed, 827 insertions, 146 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
diff --git a/source4/cluster/ctdb/include/ctdb_private.h b/source4/cluster/ctdb/include/ctdb_private.h
index 70c1c59998..bd64f978eb 100644
--- a/source4/cluster/ctdb/include/ctdb_private.h
+++ b/source4/cluster/ctdb/include/ctdb_private.h
@@ -3,33 +3,60 @@
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_PRIVATE_H
#define _CTDB_PRIVATE_H
#include "ctdb.h"
+#include <sys/socket.h>
+#include <netinet/in.h>
/* location of daemon socket */
#define CTDB_PATH "/tmp/ctdb.socket"
+/* default ctdb port number */
+#define CTDB_PORT 4379
+
/* we must align packets to ensure ctdb works on all architectures (eg. sparc) */
#define CTDB_DS_ALIGNMENT 8
-#define CTDB_NULL_FUNC 0xf0000001
+#define CTDB_NULL_FUNC 0xFF000001
+#define CTDB_FETCH_FUNC 0xFF000002
+
+/* all tunable variables go in here */
+struct ctdb_tunable {
+ uint32_t max_redirect_count;
+ uint32_t seqnum_frequency;
+ uint32_t control_timeout;
+ uint32_t traverse_timeout;
+ uint32_t keepalive_interval;
+ uint32_t keepalive_limit;
+ uint32_t max_lacount;
+ uint32_t recover_timeout;
+ uint32_t recover_interval;
+ uint32_t election_timeout;
+ uint32_t takeover_timeout;
+ uint32_t monitor_interval;
+ uint32_t script_timeout;
+ uint32_t recovery_grace_period;
+ uint32_t recovery_ban_period;
+ uint32_t database_hash_size;
+ uint32_t rerecovery_timeout;
+};
/*
an installed ctdb remote call
@@ -60,6 +87,24 @@ struct ctdb_address {
typedef void (*ctdb_queue_cb_fn_t)(uint8_t *data, size_t length,
void *private_data);
+/* used for callbacks in ctdb_control requests */
+typedef void (*ctdb_control_callback_fn_t)(struct ctdb_context *,
+ int32_t status, TDB_DATA data,
+ const char *errormsg,
+ void *private_data);
+
+/*
+ structure describing a connected client in the daemon
+ */
+struct ctdb_client {
+ struct ctdb_context *ctdb;
+ int fd;
+ struct ctdb_queue *queue;
+ uint32_t client_id;
+ pid_t pid;
+ struct ctdb_tcp_list *tcp_list;
+};
+
/*
state associated with one node
@@ -70,16 +115,42 @@ struct ctdb_node {
const char *name; /* for debug messages */
void *private_data; /* private to transport */
uint32_t vnn;
+#define NODE_FLAGS_DISCONNECTED 0x00000001 /* node isn't connected */
+#define NODE_FLAGS_UNHEALTHY 0x00000002 /* monitoring says node is unhealthy */
+#define NODE_FLAGS_PERMANENTLY_DISABLED 0x00000004 /* administrator has disabled node */
+#define NODE_FLAGS_BANNED 0x00000008 /* recovery daemon has banned the node */
+#define NODE_FLAGS_DISABLED (NODE_FLAGS_UNHEALTHY|NODE_FLAGS_PERMANENTLY_DISABLED)
+#define NODE_FLAGS_INACTIVE (NODE_FLAGS_DISCONNECTED|NODE_FLAGS_BANNED)
+ uint32_t flags;
+
+ /* used by the dead node monitoring */
+ uint32_t dead_count;
+ uint32_t rx_cnt;
+ uint32_t tx_cnt;
+
+ /* a list of controls pending to this node, so we can time them out quickly
+ if the node becomes disconnected */
+ struct daemon_control_state *pending_controls;
+
+ /* the public address of this node, if known */
+ const char *public_address;
+ uint8_t public_netmask_bits;
+
+ /* the node number that has taken over this nodes public address, if any.
+ If not taken over, then set to -1 */
+ int32_t takeover_vnn;
};
/*
transport specific methods
*/
struct ctdb_methods {
+ int (*initialise)(struct ctdb_context *); /* initialise transport structures */
int (*start)(struct ctdb_context *); /* start protocol processing */
int (*add_node)(struct ctdb_node *); /* setup a new node */
int (*queue_pkt)(struct ctdb_node *, uint8_t *data, uint32_t length);
void *(*allocate_pkt)(TALLOC_CTX *mem_ctx, size_t );
+ void (*shutdown)(struct ctdb_context *); /* shutdown transport */
};
/*
@@ -101,7 +172,7 @@ struct ctdb_upcalls {
struct ctdb_message_list {
struct ctdb_context *ctdb;
struct ctdb_message_list *next, *prev;
- uint32_t srvid;
+ uint64_t srvid;
ctdb_message_fn_t message_handler;
void *message_private;
};
@@ -116,60 +187,126 @@ struct ctdb_daemon_data {
/*
ctdb status information
*/
-struct ctdb_status {
+struct ctdb_statistics {
+ uint32_t num_clients;
+ uint32_t frozen;
+ uint32_t recovering;
uint32_t client_packets_sent;
uint32_t client_packets_recv;
uint32_t node_packets_sent;
uint32_t node_packets_recv;
+ uint32_t keepalive_packets_sent;
+ uint32_t keepalive_packets_recv;
struct {
uint32_t req_call;
uint32_t reply_call;
- uint32_t reply_redirect;
uint32_t req_dmaster;
uint32_t reply_dmaster;
uint32_t reply_error;
uint32_t req_message;
- uint32_t req_finished;
- } count;
+ uint32_t req_control;
+ uint32_t reply_control;
+ } node;
struct {
uint32_t req_call;
uint32_t req_message;
- uint32_t req_finished;
- uint32_t req_register;
- uint32_t req_connect_wait;
- uint32_t req_shutdown;
- uint32_t req_status;
+ uint32_t req_control;
} client;
+ struct {
+ uint32_t call;
+ uint32_t control;
+ uint32_t traverse;
+ } timeouts;
uint32_t total_calls;
uint32_t pending_calls;
uint32_t lockwait_calls;
uint32_t pending_lockwait_calls;
+ uint32_t memory_used;
+ uint32_t __last_counter; /* hack for control_statistics_all */
+ uint32_t max_hop_count;
double max_call_latency;
double max_lockwait_latency;
};
+/* table that contains the mapping between a hash value and lmaster
+ */
+struct ctdb_vnn_map {
+ uint32_t generation;
+ uint32_t size;
+ uint32_t *map;
+};
+
+/*
+ a wire representation of the vnn map
+ */
+struct ctdb_vnn_map_wire {
+ uint32_t generation;
+ uint32_t size;
+ uint32_t map[1];
+};
+
+/* a structure that contains the elements required for the write record
+ control
+*/
+struct ctdb_write_record {
+ uint32_t dbid;
+ uint32_t keylen;
+ uint32_t datalen;
+ unsigned char blob[1];
+};
+
+enum ctdb_freeze_mode {CTDB_FREEZE_NONE, CTDB_FREEZE_PENDING, CTDB_FREEZE_FROZEN};
+
+#define CTDB_MONITORING_ACTIVE 0
+#define CTDB_MONITORING_DISABLED 1
+
+/* information about IP takeover */
+struct ctdb_takeover {
+ bool enabled;
+ const char *interface;
+ const char *event_script;
+ TALLOC_CTX *last_ctx;
+};
+
/* main state of the ctdb daemon */
struct ctdb_context {
struct event_context *ev;
+ uint32_t recovery_mode;
+ uint32_t monitoring_mode;
+ TALLOC_CTX *monitor_context;
+ struct ctdb_tunable tunable;
+ enum ctdb_freeze_mode freeze_mode;
+ struct ctdb_freeze_handle *freeze_handle;
struct ctdb_address address;
const char *name;
const char *db_directory;
+ const char *transport;
+ const char *logfile;
+ char *node_list_file;
+ char *recovery_lock_file;
+ int recovery_lock_fd;
uint32_t vnn; /* our own vnn */
uint32_t num_nodes;
uint32_t num_connected;
- uint32_t num_finished;
unsigned flags;
struct idr_context *idr;
+ uint16_t idr_cnt;
struct ctdb_node **nodes; /* array of nodes in the cluster - indexed by vnn */
char *err_msg;
const struct ctdb_methods *methods; /* transport methods */
const struct ctdb_upcalls *upcalls; /* transport upcalls */
void *private_data; /* private to transport */
- unsigned max_lacount;
struct ctdb_db_context *db_list;
struct ctdb_message_list *message_list;
struct ctdb_daemon_data daemon;
- struct ctdb_status status;
+ struct ctdb_statistics statistics;
+ struct ctdb_vnn_map *vnn_map;
+ uint32_t num_clients;
+ uint32_t recovery_master;
+ struct ctdb_call_state *pending_calls;
+ struct ctdb_takeover takeover;
+ struct ctdb_tcp_list *tcp_list;
+ struct ctdb_client_ip *client_ip_list;
};
struct ctdb_db_context {
@@ -177,33 +314,34 @@ struct ctdb_db_context {
struct ctdb_context *ctdb;
uint32_t db_id;
const char *db_name;
+ const char *db_path;
struct tdb_wrap *ltdb;
struct ctdb_registered_call *calls; /* list of registered calls */
+ uint32_t seqnum;
+ struct timed_event *te;
};
#define CTDB_NO_MEMORY(ctdb, p) do { if (!(p)) { \
+ DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
return -1; }} while (0)
+#define CTDB_NO_MEMORY_VOID(ctdb, p) do { if (!(p)) { \
+ DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
+ ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
+ }} while (0)
+
#define CTDB_NO_MEMORY_NULL(ctdb, p) do { if (!(p)) { \
+ DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
ctdb_set_error(ctdb, "Out of memory at %s:%d", __FILE__, __LINE__); \
return NULL; }} while (0)
#define CTDB_NO_MEMORY_FATAL(ctdb, p) do { if (!(p)) { \
+ DEBUG(0,("Out of memory for %s at %s\n", #p, __location__)); \
ctdb_fatal(ctdb, "Out of memory in " __location__ ); \
}} while (0)
-/* arbitrary maximum timeout for ctdb operations */
-#define CTDB_REQ_TIMEOUT 10
-
-/* max number of redirects before we ask the lmaster */
-#define CTDB_MAX_REDIRECT 2
-
-/* number of consecutive calls from the same node before we give them
- the record */
-#define CTDB_DEFAULT_MAX_LACOUNT 7
-
/*
the extended header for records in the ltdb
*/
@@ -214,20 +352,144 @@ struct ctdb_ltdb_header {
uint32_t lacount;
};
+enum ctdb_controls {CTDB_CONTROL_PROCESS_EXISTS = 0,
+ CTDB_CONTROL_STATISTICS = 1,
+ /* #2 removed */
+ CTDB_CONTROL_PING = 3,
+ CTDB_CONTROL_GETDBPATH = 4,
+ CTDB_CONTROL_GETVNNMAP = 5,
+ CTDB_CONTROL_SETVNNMAP = 6,
+ CTDB_CONTROL_GET_DEBUG = 7,
+ CTDB_CONTROL_SET_DEBUG = 8,
+ CTDB_CONTROL_GET_DBMAP = 9,
+ CTDB_CONTROL_GET_NODEMAP = 10,
+ CTDB_CONTROL_SET_DMASTER = 11,
+ /* #12 removed */
+ CTDB_CONTROL_PULL_DB = 13,
+ CTDB_CONTROL_PUSH_DB = 14,
+ CTDB_CONTROL_GET_RECMODE = 15,
+ CTDB_CONTROL_SET_RECMODE = 16,
+ CTDB_CONTROL_STATISTICS_RESET = 17,
+ CTDB_CONTROL_DB_ATTACH = 18,
+ CTDB_CONTROL_SET_CALL = 19,
+ CTDB_CONTROL_TRAVERSE_START = 20,
+ CTDB_CONTROL_TRAVERSE_ALL = 21,
+ CTDB_CONTROL_TRAVERSE_DATA = 22,
+ CTDB_CONTROL_REGISTER_SRVID = 23,
+ CTDB_CONTROL_DEREGISTER_SRVID = 24,
+ CTDB_CONTROL_GET_DBNAME = 25,
+ CTDB_CONTROL_ENABLE_SEQNUM = 26,
+ CTDB_CONTROL_UPDATE_SEQNUM = 27,
+ /* #28 removed */
+ CTDB_CONTROL_DUMP_MEMORY = 29,
+ CTDB_CONTROL_GET_PID = 30,
+ CTDB_CONTROL_GET_RECMASTER = 31,
+ CTDB_CONTROL_SET_RECMASTER = 32,
+ CTDB_CONTROL_FREEZE = 33,
+ CTDB_CONTROL_THAW = 34,
+ CTDB_CONTROL_GET_VNN = 35,
+ CTDB_CONTROL_SHUTDOWN = 36,
+ CTDB_CONTROL_GET_MONMODE = 37,
+ CTDB_CONTROL_SET_MONMODE = 38,
+ CTDB_CONTROL_MAX_RSN = 39,
+ CTDB_CONTROL_SET_RSN_NONEMPTY = 40,
+ CTDB_CONTROL_DELETE_LOW_RSN = 41,
+ CTDB_CONTROL_TAKEOVER_IP = 42,
+ CTDB_CONTROL_RELEASE_IP = 43,
+ CTDB_CONTROL_TCP_CLIENT = 44,
+ CTDB_CONTROL_TCP_ADD = 45,
+ CTDB_CONTROL_TCP_REMOVE = 46,
+ CTDB_CONTROL_STARTUP = 47,
+ CTDB_CONTROL_SET_TUNABLE = 48,
+ CTDB_CONTROL_GET_TUNABLE = 49,
+ CTDB_CONTROL_LIST_TUNABLES = 50,
+ CTDB_CONTROL_GET_PUBLIC_IPS = 51,
+ CTDB_CONTROL_MODIFY_FLAGS = 52,
+ CTDB_CONTROL_GET_ALL_TUNABLES = 53,
+};
+
+/*
+ structure passed in ctdb_control_set_rsn_nonempty
+ */
+struct ctdb_control_set_rsn_nonempty {
+ uint32_t db_id;
+ uint64_t rsn;
+};
+
+/*
+ structure passed in ctdb_control_delete_low_rsn
+ */
+struct ctdb_control_delete_low_rsn {
+ uint32_t db_id;
+ uint64_t rsn;
+};
+
+/*
+ structure passed in set_call control
+ */
+struct ctdb_control_set_call {
+ uint32_t db_id;
+ ctdb_fn_t fn;
+ uint32_t id;
+};
+
+/*
+ struct for tcp_client control
+ */
+struct ctdb_control_tcp {
+ struct sockaddr_in src;
+ struct sockaddr_in dest;
+};
+
+/*
+ struct for tcp_add and tcp_remove controls
+ */
+struct ctdb_control_tcp_vnn {
+ uint32_t vnn;
+ struct sockaddr_in src;
+ struct sockaddr_in dest;
+};
+
+/*
+ structure used for CTDB_SRVID_NODE_FLAGS_CHANGED
+ */
+struct ctdb_node_flag_change {
+ uint32_t vnn;
+ uint32_t flags;
+};
+
+/*
+ structure to change flags on a node
+ */
+struct ctdb_node_modflags {
+ uint32_t set;
+ uint32_t clear;
+};
+
+/*
+ struct for admin setting a ban
+ */
+struct ctdb_ban_info {
+ uint32_t vnn;
+ uint32_t ban_time;
+};
+
enum call_state {CTDB_CALL_WAIT, CTDB_CALL_DONE, CTDB_CALL_ERROR};
+#define CTDB_LMASTER_ANY 0xffffffff
+
/*
state of a in-progress ctdb call
*/
struct ctdb_call_state {
+ struct ctdb_call_state *next, *prev;
enum call_state state;
+ uint32_t reqid;
struct ctdb_req_call *c;
struct ctdb_db_context *ctdb_db;
- struct ctdb_node *node;
const char *errmsg;
struct ctdb_call call;
- int redirect_count;
- struct ctdb_ltdb_header header;
+ uint32_t generation;
struct {
void (*fn)(struct ctdb_call_state *);
void *private_data;
@@ -249,20 +511,14 @@ struct ctdb_fetch_handle {
enum ctdb_operation {
CTDB_REQ_CALL = 0,
CTDB_REPLY_CALL = 1,
- CTDB_REPLY_REDIRECT = 2,
- CTDB_REQ_DMASTER = 3,
- CTDB_REPLY_DMASTER = 4,
- CTDB_REPLY_ERROR = 5,
- CTDB_REQ_MESSAGE = 6,
- CTDB_REQ_FINISHED = 7,
-
- /* only used on the domain socket */
- CTDB_REQ_REGISTER = 1000,
- CTDB_REQ_CONNECT_WAIT = 1001,
- CTDB_REPLY_CONNECT_WAIT = 1002,
- CTDB_REQ_SHUTDOWN = 1003,
- CTDB_REQ_STATUS = 1004,
- CTDB_REPLY_STATUS = 1005
+ CTDB_REQ_DMASTER = 2,
+ CTDB_REPLY_DMASTER = 3,
+ CTDB_REPLY_ERROR = 4,
+ CTDB_REQ_MESSAGE = 5,
+ /* #6 removed */
+ CTDB_REQ_CONTROL = 7,
+ CTDB_REPLY_CONTROL = 8,
+ CTDB_REQ_KEEPALIVE = 9,
};
#define CTDB_MAGIC 0x43544442 /* CTDB */
@@ -275,6 +531,7 @@ struct ctdb_req_header {
uint32_t length;
uint32_t ctdb_magic;
uint32_t ctdb_version;
+ uint32_t generation;
uint32_t operation;
uint32_t destnode;
uint32_t srcnode;
@@ -286,6 +543,7 @@ struct ctdb_req_call {
uint32_t flags;
uint32_t db_id;
uint32_t callid;
+ uint32_t hopcount;
uint32_t keylen;
uint32_t calldatalen;
uint8_t data[1]; /* key[] followed by calldata[] */
@@ -305,14 +563,10 @@ struct ctdb_reply_error {
uint8_t msg[1];
};
-struct ctdb_reply_redirect {
- struct ctdb_req_header hdr;
- uint32_t dmaster;
-};
-
struct ctdb_req_dmaster {
struct ctdb_req_header hdr;
uint32_t db_id;
+ uint64_t rsn;
uint32_t dmaster;
uint32_t keylen;
uint32_t datalen;
@@ -321,47 +575,52 @@ struct ctdb_req_dmaster {
struct ctdb_reply_dmaster {
struct ctdb_req_header hdr;
+ uint32_t db_id;
+ uint64_t rsn;
+ uint32_t keylen;
uint32_t datalen;
uint8_t data[1];
};
-struct ctdb_req_register {
- struct ctdb_req_header hdr;
- uint32_t srvid;
-};
-
struct ctdb_req_message {
struct ctdb_req_header hdr;
- uint32_t srvid;
+ uint64_t srvid;
uint32_t datalen;
uint8_t data[1];
};
-struct ctdb_req_finished {
- struct ctdb_req_header hdr;
-};
-
-struct ctdb_req_shutdown {
+struct ctdb_req_getdbpath {
struct ctdb_req_header hdr;
+ uint32_t db_id;
};
-struct ctdb_req_connect_wait {
+struct ctdb_reply_getdbpath {
struct ctdb_req_header hdr;
+ uint32_t datalen;
+ uint8_t data[1];
};
-struct ctdb_reply_connect_wait {
+struct ctdb_req_control {
struct ctdb_req_header hdr;
- uint32_t vnn;
- uint32_t num_connected;
+ uint32_t opcode;
+ uint64_t srvid;
+ uint32_t client_id;
+#define CTDB_CTRL_FLAG_NOREPLY 1
+ uint32_t flags;
+ uint32_t datalen;
+ uint8_t data[1];
};
-struct ctdb_req_status {
+struct ctdb_reply_control {
struct ctdb_req_header hdr;
+ int32_t status;
+ uint32_t datalen;
+ uint32_t errorlen;
+ uint8_t data[1];
};
-struct ctdb_reply_status {
+struct ctdb_req_keepalive {
struct ctdb_req_header hdr;
- struct ctdb_status status;
};
/* internal prototypes */
@@ -372,13 +631,13 @@ int ctdb_parse_address(struct ctdb_context *ctdb,
TALLOC_CTX *mem_ctx, const char *str,
struct ctdb_address *address);
uint32_t ctdb_hash(const TDB_DATA *key);
+uint32_t ctdb_hash_string(const char *str);
void ctdb_request_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
void ctdb_request_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
void ctdb_request_message(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
void ctdb_reply_dmaster(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
void ctdb_reply_call(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
void ctdb_reply_error(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
-void ctdb_reply_redirect(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
uint32_t ctdb_lmaster(struct ctdb_context *ctdb, const TDB_DATA *key);
int ctdb_ltdb_fetch(struct ctdb_db_context *ctdb_db,
@@ -389,14 +648,14 @@ int ctdb_ltdb_store(struct ctdb_db_context *ctdb_db, TDB_DATA key,
void ctdb_queue_packet(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
int ctdb_ltdb_lock_requeue(struct ctdb_db_context *ctdb_db,
TDB_DATA key, struct ctdb_req_header *hdr,
- void (*recv_pkt)(void *, uint8_t *, uint32_t ),
- void *recv_context);
+ void (*recv_pkt)(void *, struct ctdb_req_header *),
+ void *recv_context, bool ignore_generation);
int ctdb_ltdb_lock_fetch_requeue(struct ctdb_db_context *ctdb_db,
TDB_DATA key, struct ctdb_ltdb_header *header,
struct ctdb_req_header *hdr, TDB_DATA *data,
- void (*recv_pkt)(void *, uint8_t *, uint32_t ),
- void *recv_context);
-void ctdb_recv_pkt(struct ctdb_context *ctdb, uint8_t *data, uint32_t length);
+ void (*recv_pkt)(void *, struct ctdb_req_header *),
+ void *recv_context, bool ignore_generation);
+void ctdb_input_pkt(struct ctdb_context *ctdb, struct ctdb_req_header *);
struct ctdb_call_state *ctdb_call_local_send(struct ctdb_db_context *ctdb_db,
struct ctdb_call *call,
@@ -430,7 +689,21 @@ struct ctdb_queue *ctdb_queue_setup(struct ctdb_context *ctdb,
/*
allocate a packet for use in client<->daemon communication
*/
-void *ctdbd_allocate_pkt(TALLOC_CTX *mem_ctx, size_t len);
+struct ctdb_req_header *_ctdbd_allocate_pkt(struct ctdb_context *ctdb,
+ TALLOC_CTX *mem_ctx,
+ enum ctdb_operation operation,
+ size_t length, size_t slength,
+ const char *type);
+#define ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, type) \
+ (type *)_ctdbd_allocate_pkt(ctdb, mem_ctx, operation, length, sizeof(type), #type)
+
+struct ctdb_req_header *_ctdb_transport_allocate(struct ctdb_context *ctdb,
+ TALLOC_CTX *mem_ctx,
+ enum ctdb_operation operation,
+ size_t length, size_t slength,
+ const char *type);
+#define ctdb_transport_allocate(ctdb, mem_ctx, operation, length, type) \
+ (type *)_ctdb_transport_allocate(ctdb, mem_ctx, operation, length, sizeof(type), #type)
/*
@@ -461,24 +734,18 @@ struct ctdb_call_state *ctdb_client_call_send(struct ctdb_db_context *ctdb_db,
*/
int ctdb_client_call_recv(struct ctdb_call_state *state, struct ctdb_call *call);
-int ctdb_daemon_set_message_handler(struct ctdb_context *ctdb, uint32_t srvid,
+int ctdb_daemon_set_message_handler(struct ctdb_context *ctdb, uint64_t srvid,
ctdb_message_fn_t handler,
void *private_data);
int ctdb_client_send_message(struct ctdb_context *ctdb, uint32_t vnn,
- uint32_t srvid, TDB_DATA data);
+ uint64_t srvid, TDB_DATA data);
/*
send a ctdb message
*/
int ctdb_daemon_send_message(struct ctdb_context *ctdb, uint32_t vnn,
- uint32_t srvid, TDB_DATA data);
-
-
-/*
- wait for all nodes to be connected
-*/
-void ctdb_daemon_connect_wait(struct ctdb_context *ctdb);
+ uint64_t srvid, TDB_DATA data);
struct lockwait_handle *ctdb_lockwait(struct ctdb_db_context *ctdb_db,
@@ -494,14 +761,11 @@ struct ctdb_call_state *ctdb_daemon_call_send_remote(struct ctdb_db_context *ctd
struct ctdb_call *call,
struct ctdb_ltdb_header *header);
-void ctdb_request_finished(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
-
int ctdb_call_local(struct ctdb_db_context *ctdb_db, struct ctdb_call *call,
- struct ctdb_ltdb_header *header, TDB_DATA *data,
+ struct ctdb_ltdb_header *header, TALLOC_CTX *mem_ctx, TDB_DATA *data,
uint32_t caller);
-void *_idr_find_type(struct idr_context *idp, int id, const char *type, const char *location);
-#define idr_find_type(idp, id, type) (type *)_idr_find_type(idp, id, #type, __location__)
+#define ctdb_reqid_find(ctdb, reqid, type) (type *)_ctdb_reqid_find(ctdb, reqid, #type, __location__)
void ctdb_recv_raw_pkt(void *p, uint8_t *data, uint32_t length);
@@ -509,4 +773,263 @@ int ctdb_socket_connect(struct ctdb_context *ctdb);
void ctdb_latency(double *latency, struct timeval t);
+uint32_t ctdb_reqid_new(struct ctdb_context *ctdb, void *state);
+void *_ctdb_reqid_find(struct ctdb_context *ctdb, uint32_t reqid, const char *type, const char *location);
+void ctdb_reqid_remove(struct ctdb_context *ctdb, uint32_t reqid);
+
+void ctdb_request_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
+void ctdb_reply_control(struct ctdb_context *ctdb, struct ctdb_req_header *hdr);
+
+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);
+
+int32_t ctdb_control_db_attach(struct ctdb_context *ctdb, TDB_DATA indata,
+ TDB_DATA *outdata);
+
+int ctdb_daemon_set_call(struct ctdb_context *ctdb, uint32_t db_id,
+ ctdb_fn_t fn, int id);
+
+int ctdb_control(struct ctdb_context *ctdb, uint32_t destnode, uint64_t srvid,
+ uint32_t opcode, uint32_t flags, TDB_DATA data,
+ TALLOC_CTX *mem_ctx, TDB_DATA *outdata, int32_t *status,
+ struct timeval *timeout, char **errormsg);
+
+
+
+
+#define CHECK_CONTROL_DATA_SIZE(size) do { \
+ if (indata.dsize != size) { \
+ DEBUG(0,(__location__ " Invalid data size in opcode %u. Got %u expected %u\n", \
+ opcode, (unsigned)indata.dsize, (unsigned)size)); \
+ return -1; \
+ } \
+ } while (0)
+
+int ctdb_control_getvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
+int ctdb_control_setvnnmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
+int ctdb_control_getdbmap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
+int ctdb_control_getnodemap(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
+int ctdb_control_writerecord(struct ctdb_context *ctdb, uint32_t opcode, TDB_DATA indata, TDB_DATA *outdata);
+
+
+struct ctdb_traverse_start {
+ uint32_t db_id;
+ uint32_t reqid;
+ uint64_t srvid;
+};
+
+/*
+ structure used to pass record data between the child and parent
+ */
+struct ctdb_rec_data {
+ uint32_t length;
+ uint32_t reqid;
+ uint32_t keylen;
+ uint32_t datalen;
+ uint8_t data[1];
+};
+
+
+/* structure used for pulldb control */
+struct ctdb_control_pulldb {
+ uint32_t db_id;
+ uint32_t lmaster;
+};
+
+/* structure used for pulldb control */
+struct ctdb_control_pulldb_reply {
+ uint32_t db_id;
+ uint32_t count;
+ uint8_t data[1];
+};
+
+/* set dmaster control structure */
+struct ctdb_control_set_dmaster {
+ uint32_t db_id;
+ uint32_t dmaster;
+};
+
+/*
+ structure for setting a tunable
+ */
+struct ctdb_control_set_tunable {
+ uint32_t value;
+ uint32_t length;
+ uint8_t name[1];
+};
+
+/*
+ structure for getting a tunable
+ */
+struct ctdb_control_get_tunable {
+ uint32_t length;
+ uint8_t name[1];
+};
+
+/*
+ structure for listing tunables
+ */
+struct ctdb_control_list_tunable {
+ uint32_t length;
+ /* returns a : separated list of tunable names */
+ uint8_t data[1];
+};
+
+
+/* table that contains a list of all nodes a ctdb knows about and their
+ status
+ */
+struct ctdb_node_and_flags {
+ uint32_t vnn;
+ uint32_t flags;
+ struct sockaddr_in sin;
+
+};
+
+struct ctdb_node_map {
+ uint32_t num;
+ struct ctdb_node_and_flags nodes[1];
+};
+
+int32_t ctdb_control_traverse_start(struct ctdb_context *ctdb, TDB_DATA indata,
+ TDB_DATA *outdata, uint32_t srcnode);
+int32_t ctdb_control_traverse_all(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
+int32_t ctdb_control_traverse_data(struct ctdb_context *ctdb, TDB_DATA data, TDB_DATA *outdata);
+
+int ctdb_dispatch_message(struct ctdb_context *ctdb, uint64_t srvid, TDB_DATA data);
+
+int daemon_register_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
+int ctdb_deregister_message_handler(struct ctdb_context *ctdb, uint64_t srvid, void *private_data);
+int daemon_deregister_message_handler(struct ctdb_context *ctdb, uint32_t client_id, uint64_t srvid);
+
+int32_t ctdb_ltdb_enable_seqnum(struct ctdb_context *ctdb, uint32_t db_id);
+int32_t ctdb_ltdb_update_seqnum(struct ctdb_context *ctdb, uint32_t db_id, uint32_t srcnode);
+int32_t ctdb_ltdb_set_seqnum_frequency(struct ctdb_context *ctdb, uint32_t frequency);
+
+struct ctdb_rec_data *ctdb_marshall_record(TALLOC_CTX *mem_ctx, uint32_t reqid, TDB_DATA key, TDB_DATA data);
+
+int32_t ctdb_control_pull_db(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
+int32_t ctdb_control_push_db(struct ctdb_context *ctdb, TDB_DATA indata);
+int32_t ctdb_control_set_dmaster(struct ctdb_context *ctdb, TDB_DATA indata);
+
+int32_t ctdb_control_set_recmode(struct ctdb_context *ctdb,
+ struct ctdb_req_control *c,
+ TDB_DATA indata, bool *async_reply,
+ const char **errormsg);
+void ctdb_request_control_reply(struct ctdb_context *ctdb, struct ctdb_req_control *c,
+ TDB_DATA *outdata, int32_t status, const char *errormsg);
+
+int32_t ctdb_control_freeze(struct ctdb_context *ctdb, struct ctdb_req_control *c, bool *async_reply);
+int32_t ctdb_control_thaw(struct ctdb_context *ctdb);
+
+int ctdb_start_recoverd(struct ctdb_context *ctdb);
+
+uint32_t ctdb_get_num_active_nodes(struct ctdb_context *ctdb);
+
+void ctdb_stop_monitoring(struct ctdb_context *ctdb);
+void ctdb_start_monitoring(struct ctdb_context *ctdb);
+void ctdb_send_keepalive(struct ctdb_context *ctdb, uint32_t destnode);
+
+void ctdb_daemon_cancel_controls(struct ctdb_context *ctdb, struct ctdb_node *node);
+void ctdb_call_resend_all(struct ctdb_context *ctdb);
+void ctdb_node_dead(struct ctdb_node *node);
+void ctdb_node_connected(struct ctdb_node *node);
+bool ctdb_blocking_freeze(struct ctdb_context *ctdb);
+int32_t ctdb_control_max_rsn(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
+int32_t ctdb_control_set_rsn_nonempty(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
+int32_t ctdb_control_delete_low_rsn(struct ctdb_context *ctdb, TDB_DATA indata, TDB_DATA *outdata);
+int ctdb_ctrl_get_max_rsn(struct ctdb_context *ctdb, struct timeval timeout,
+ uint32_t destnode, uint32_t db_id, uint64_t *max_rsn);
+int ctdb_ctrl_set_rsn_nonempty(struct ctdb_context *ctdb, struct timeval timeout,
+ uint32_t destnode, uint32_t db_id, uint64_t rsn);
+int ctdb_ctrl_delete_low_rsn(struct ctdb_context *ctdb, struct timeval timeout,
+ uint32_t destnode, uint32_t db_id, uint64_t rsn);
+void ctdb_set_realtime(bool enable);
+int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb,
+ struct ctdb_req_control *c,
+ TDB_DATA indata,
+ bool *async_reply);
+int32_t ctdb_control_release_ip(struct ctdb_context *ctdb,
+ struct ctdb_req_control *c,
+ TDB_DATA indata,
+ bool *async_reply);
+
+struct ctdb_public_ip {
+ uint32_t vnn;
+ uint32_t takeover_vnn;
+ struct sockaddr_in sin;
+};
+int ctdb_ctrl_takeover_ip(struct ctdb_context *ctdb, struct timeval timeout,
+ uint32_t destnode, struct ctdb_public_ip *ip);
+int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
+ uint32_t destnode, struct ctdb_public_ip *ip);
+
+struct ctdb_all_public_ips {
+ uint32_t num;
+ struct ctdb_public_ip ips[1];
+};
+int32_t ctdb_control_get_public_ips(struct ctdb_context *ctdb, struct ctdb_req_control *c, TDB_DATA *outdata);
+int ctdb_ctrl_get_public_ips(struct ctdb_context *ctdb,
+ struct timeval timeout, uint32_t destnode,
+ TALLOC_CTX *mem_ctx, struct ctdb_all_public_ips **ips);
+
+
+/* from takeover/system.c */
+int ctdb_sys_send_arp(const struct sockaddr_in *saddr, const char *iface);
+bool ctdb_sys_have_ip(const char *ip);
+int ctdb_sys_send_tcp(const struct sockaddr_in *dest,
+ const struct sockaddr_in *src,
+ uint32_t seq, uint32_t ack, int rst);
+int ctdb_sys_kill_tcp(struct event_context *ev,
+ const struct sockaddr_in *dest,
+ const struct sockaddr_in *src);
+
+int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
+int ctdb_set_event_script(struct ctdb_context *ctdb, const char *script);
+int ctdb_takeover_run(struct ctdb_context *ctdb, struct ctdb_node_map *nodemap);
+
+int32_t ctdb_control_tcp_client(struct ctdb_context *ctdb, uint32_t client_id,
+ uint32_t srcnode, TDB_DATA indata);
+int32_t ctdb_control_tcp_add(struct ctdb_context *ctdb, TDB_DATA indata);
+int32_t ctdb_control_tcp_remove(struct ctdb_context *ctdb, TDB_DATA indata);
+int32_t ctdb_control_startup(struct ctdb_context *ctdb, uint32_t vnn);
+
+void ctdb_takeover_client_destructor_hook(struct ctdb_client *client);
+int ctdb_event_script(struct ctdb_context *ctdb, const char *fmt, ...) PRINTF_ATTRIBUTE(2,3);
+int ctdb_event_script_callback(struct ctdb_context *ctdb,
+ struct timeval timeout,
+ TALLOC_CTX *mem_ctx,
+ void (*callback)(struct ctdb_context *, int, void *),
+ void *private_data,
+ const char *fmt, ...) PRINTF_ATTRIBUTE(6,7);
+void ctdb_release_all_ips(struct ctdb_context *ctdb);
+
+void set_nonblocking(int fd);
+void set_close_on_exec(int fd);
+
+bool ctdb_recovery_lock(struct ctdb_context *ctdb, bool keep);
+
+int ctdb_set_recovery_lock_file(struct ctdb_context *ctdb, const char *file);
+
+int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
+ TDB_DATA *outdata);
+int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata);
+int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata);
+
+void ctdb_tunables_set_defaults(struct ctdb_context *ctdb);
+
+int32_t ctdb_control_modflags(struct ctdb_context *ctdb, TDB_DATA indata);
+
+int ctdb_ctrl_get_all_tunables(struct ctdb_context *ctdb,
+ struct timeval timeout,
+ uint32_t destnode,
+ struct ctdb_tunable *tunables);
+
+void ctdb_start_freeze(struct ctdb_context *ctdb);
+
+bool parse_ip_port(const char *s, struct sockaddr_in *ip);
+
#endif
diff --git a/source4/cluster/ctdb/include/includes.h b/source4/cluster/ctdb/include/includes.h
index bffc66b358..a345fa2e81 100644
--- a/source4/cluster/ctdb/include/includes.h
+++ b/source4/cluster/ctdb/include/includes.h
@@ -5,7 +5,6 @@
#include "tdb.h"
#include "idtree.h"
#include "ctdb.h"
-#include "lib/util/dlinklist.h"
#include "lib/util/debug.h"
typedef bool BOOL;
@@ -35,3 +34,7 @@ struct timeval timeval_until(const struct timeval *tv1,
_PUBLIC_ struct timeval timeval_current_ofs(uint32_t secs, uint32_t usecs);
double timeval_elapsed(struct timeval *tv);
char **file_lines_load(const char *fname, int *numlines, TALLOC_CTX *mem_ctx);
+char *hex_encode(TALLOC_CTX *mem_ctx, const unsigned char *buff_in, size_t len);
+_PUBLIC_ const char **str_list_add(const char **list, const char *s);
+_PUBLIC_ int set_blocking(int fd, BOOL set);
+