/*
- Unix SMB/Netbios implementation.
- Version 3.0
+ Unix SMB/CIFS implementation.
messages.c header
Copyright (C) Andrew Tridgell 2000
Copyright (C) 2001, 2002 by Martin Pool
#ifndef _MESSAGES_H_
#define _MESSAGES_H_
+/* change the message version with any incompatible changes in the protocol */
+#define MESSAGE_VERSION 2
+
+
+#define MSG_TYPE_MASK 0xFFFF
+
/* general messages */
-#define MSG_DEBUG 1
-#define MSG_PING 2
-#define MSG_PONG 3
-#define MSG_PROFILE 4
-#define MSG_REQ_DEBUGLEVEL 5
-#define MSG_DEBUGLEVEL 6
-#define MSG_REQ_PROFILELEVEL 7
-#define MSG_PROFILELEVEL 8
-#define MSG_REQ_POOL_USAGE 9
-#define MSG_POOL_USAGE 10
+#define MSG_DEBUG 0x0001
+#define MSG_PING 0x0002
+#define MSG_PONG 0x0003
+#define MSG_PROFILE 0x0004
+#define MSG_REQ_DEBUGLEVEL 0x0005
+#define MSG_DEBUGLEVEL 0x0006
+#define MSG_REQ_PROFILELEVEL 0x0007
+#define MSG_PROFILELEVEL 0x0008
+#define MSG_REQ_POOL_USAGE 0x0009
+#define MSG_POOL_USAGE 0x000A
/* If dmalloc is included, set a steady-state mark */
-#define MSG_REQ_DMALLOC_MARK 11
+#define MSG_REQ_DMALLOC_MARK 0x000B
/* If dmalloc is included, dump to the dmalloc log a description of
* what has changed since the last MARK */
-#define MSG_REQ_DMALLOC_LOG_CHANGED 12
+#define MSG_REQ_DMALLOC_LOG_CHANGED 0x000C
+
+#define MSG_SHUTDOWN 0x000D
/* nmbd messages */
-#define MSG_FORCE_ELECTION 1001
+#define MSG_FORCE_ELECTION 0x0101
+#define MSG_WINS_NEW_ENTRY 0x0102
+#define MSG_SEND_PACKET 0x0103
-/* rpc messages */
-#define MSG_PRINTER_NOTIFY 2001
-#define MSG_PRINTER_UPDATE 2002
+/* printing messages */
+/* #define MSG_PRINTER_NOTIFY 2001*/ /* Obsolete */
+#define MSG_PRINTER_NOTIFY2 0x0202
+
+#define MSG_PRINTER_DRVUPGRADE 0x0203
+#define MSG_PRINTERDATA_INIT_RESET 0x0204
+#define MSG_PRINTER_UPDATE 0x0205
+#define MSG_PRINTER_MOD 0x0206
/* smbd messages */
-#define MSG_SMB_CONF_UPDATED 3001
-#define MSG_SMB_FORCE_TDIS 3002
-#define MSG_SMB_SAM_SYNC 3003
-#define MSG_SMB_SAM_REPL 3004
+#define MSG_SMB_CONF_UPDATED 0x0301
+#define MSG_SMB_FORCE_TDIS 0x0302
+#define MSG_SMB_SAM_SYNC 0x0303
+#define MSG_SMB_SAM_REPL 0x0304
+#define MSG_SMB_UNLOCK 0x0305
+#define MSG_SMB_BREAK_REQUEST 0x0306
+#define MSG_SMB_BREAK_RESPONSE 0x0307
+#define MSG_SMB_ASYNC_LEVEL2_BREAK 0x0308
+#define MSG_SMB_OPEN_RETRY 0x0309
+#define MSG_SMB_KERNEL_BREAK 0x030A
+#define MSG_SMB_FILE_RENAME 0x030B
+#define MSG_SMB_INJECT_FAULT 0x030C
+#define MSG_SMB_BLOCKING_LOCK_CANCEL 0x030D
+#define MSG_SMB_NOTIFY 0x030E
+#define MSG_SMB_STAT_CACHE_DELETE 0x030F
+/*
+ * Samba4 compatibility
+ */
+#define MSG_PVFS_NOTIFY 0x0310
+/*
+ * cluster reconfigure events
+ */
+#define MSG_SMB_BRL_VALIDATE 0x0311
+#define MSG_SMB_RELEASE_IP 0x0312
+
+/* winbind messages */
+#define MSG_WINBIND_FINISHED 0x0401
+#define MSG_WINBIND_FORGET_STATE 0x0402
+#define MSG_WINBIND_ONLINE 0x0403
+#define MSG_WINBIND_OFFLINE 0x0404
+#define MSG_WINBIND_ONLINESTATUS 0x0405
+#define MSG_WINBIND_TRY_TO_GO_ONLINE 0x0406
+#define MSG_WINBIND_FAILED_TO_GO_ONLINE 0x0407
+
+/* event messages */
+#define MSG_DUMP_EVENT_LIST 0x0500
+
+/*
+ * Special flags passed to message_send. Allocated from the top, lets see when
+ * it collides with the message types in the lower 16 bits :-)
+ */
+
+/*
+ * Under high load, this message can be dropped. Use for notify-style
+ * messages that are not critical for correct operation.
+ */
+#define MSG_FLAG_LOWPRIORITY 0x80000000
+
+
+/* Flags to classify messages - used in message_send_all() */
+/* Sender will filter by flag. */
+
+#define FLAG_MSG_GENERAL 0x0001
+#define FLAG_MSG_SMBD 0x0002
+#define FLAG_MSG_NMBD 0x0004
+#define FLAG_MSG_PRINT_NOTIFY 0x0008
+#define FLAG_MSG_PRINT_GENERAL 0x0010
+
+
+/*
+ * Virtual Node Numbers are identifying a node within a cluster. Ctdbd sets
+ * this, we retrieve our vnn from it.
+ */
+
+#define NONCLUSTER_VNN (0xFFFFFFFF)
+
+/*
+ * ctdb gives us 64-bit server ids for messaging_send. This is done to avoid
+ * pid clashes and to be able to register for special messages like "all
+ * smbds".
+ *
+ * Normal individual server id's have the upper 32 bits to 0, I picked "1" for
+ * Samba, other subsystems might use something else.
+ */
+
+#define MSG_SRVID_SAMBA 0x0000000100000000LL
+
+
+struct server_id {
+ pid_t pid;
+#ifdef CLUSTER_SUPPORT
+ uint32 vnn;
+#endif
+};
+
+
+
+struct messaging_context;
+struct messaging_rec;
+struct data_blob;
+
+/*
+ * struct messaging_context belongs to messages.c, but because we still have
+ * messaging_dispatch, we need it here. Once we get rid of signals for
+ * notifying processes, this will go.
+ */
+
+struct messaging_context {
+ struct server_id id;
+ struct event_context *event_ctx;
+ struct messaging_callback *callbacks;
+
+ struct messaging_backend *local;
+ struct messaging_backend *remote;
+};
+
+struct messaging_backend {
+ NTSTATUS (*send_fn)(struct messaging_context *msg_ctx,
+ struct server_id pid, int msg_type,
+ const struct data_blob *data,
+ struct messaging_backend *backend);
+ void *private_data;
+};
+
+NTSTATUS messaging_tdb_init(struct messaging_context *msg_ctx,
+ TALLOC_CTX *mem_ctx,
+ struct messaging_backend **presult);
+void message_dispatch(struct messaging_context *msg_ctx);
+
+NTSTATUS messaging_ctdbd_init(struct messaging_context *msg_ctx,
+ TALLOC_CTX *mem_ctx,
+ struct messaging_backend **presult);
+struct ctdbd_connection *messaging_ctdbd_connection(void);
+
+BOOL message_send_all(struct messaging_context *msg_ctx,
+ int msg_type,
+ const void *buf, size_t len,
+ int *n_sent);
+struct event_context *messaging_event_context(struct messaging_context *msg_ctx);
+struct messaging_context *messaging_init(TALLOC_CTX *mem_ctx,
+ struct server_id server_id,
+ struct event_context *ev);
+
+/*
+ * re-init after a fork
+ */
+NTSTATUS messaging_reinit(struct messaging_context *msg_ctx);
+
+NTSTATUS messaging_register(struct messaging_context *msg_ctx,
+ void *private_data,
+ uint32_t msg_type,
+ void (*fn)(struct messaging_context *msg,
+ void *private_data,
+ uint32_t msg_type,
+ struct server_id server_id,
+ struct data_blob *data));
+void messaging_deregister(struct messaging_context *ctx, uint32_t msg_type,
+ void *private_data);
+NTSTATUS messaging_send(struct messaging_context *msg_ctx,
+ struct server_id server,
+ uint32_t msg_type, const struct data_blob *data);
+NTSTATUS messaging_send_buf(struct messaging_context *msg_ctx,
+ struct server_id server, uint32_t msg_type,
+ const uint8 *buf, size_t len);
+void messaging_dispatch_rec(struct messaging_context *msg_ctx,
+ struct messaging_rec *rec);
#endif
git.samba.org / sfrench / samba-autobuild / .git / blobdiff