2 Unix SMB/CIFS implementation.
4 Copyright (C) Andrew Tridgell 2000
5 Copyright (C) 2001, 2002 by Martin Pool
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 /* change the message version with any incompatible changes in the protocol */
26 #define MESSAGE_VERSION 2
29 #define MSG_TYPE_MASK 0xFFFF
31 /* general messages */
32 #define MSG_DEBUG 0x0001
33 #define MSG_PING 0x0002
34 #define MSG_PONG 0x0003
35 #define MSG_PROFILE 0x0004
36 #define MSG_REQ_DEBUGLEVEL 0x0005
37 #define MSG_DEBUGLEVEL 0x0006
38 #define MSG_REQ_PROFILELEVEL 0x0007
39 #define MSG_PROFILELEVEL 0x0008
40 #define MSG_REQ_POOL_USAGE 0x0009
41 #define MSG_POOL_USAGE 0x000A
43 /* If dmalloc is included, set a steady-state mark */
44 #define MSG_REQ_DMALLOC_MARK 0x000B
46 /* If dmalloc is included, dump to the dmalloc log a description of
47 * what has changed since the last MARK */
48 #define MSG_REQ_DMALLOC_LOG_CHANGED 0x000C
50 #define MSG_SHUTDOWN 0x000D
53 #define MSG_FORCE_ELECTION 0x0101
54 #define MSG_WINS_NEW_ENTRY 0x0102
55 #define MSG_SEND_PACKET 0x0103
57 /* printing messages */
58 /* #define MSG_PRINTER_NOTIFY 2001*/ /* Obsolete */
59 #define MSG_PRINTER_NOTIFY2 0x0202
61 #define MSG_PRINTER_DRVUPGRADE 0x0203
62 #define MSG_PRINTERDATA_INIT_RESET 0x0204
63 #define MSG_PRINTER_UPDATE 0x0205
64 #define MSG_PRINTER_MOD 0x0206
67 #define MSG_SMB_CONF_UPDATED 0x0301
68 #define MSG_SMB_FORCE_TDIS 0x0302
69 #define MSG_SMB_SAM_SYNC 0x0303
70 #define MSG_SMB_SAM_REPL 0x0304
71 #define MSG_SMB_UNLOCK 0x0305
72 #define MSG_SMB_BREAK_REQUEST 0x0306
73 #define MSG_SMB_BREAK_RESPONSE 0x0307
74 #define MSG_SMB_ASYNC_LEVEL2_BREAK 0x0308
75 #define MSG_SMB_OPEN_RETRY 0x0309
76 #define MSG_SMB_KERNEL_BREAK 0x030A
77 #define MSG_SMB_FILE_RENAME 0x030B
78 #define MSG_SMB_INJECT_FAULT 0x030C
79 #define MSG_SMB_BLOCKING_LOCK_CANCEL 0x030D
80 #define MSG_SMB_NOTIFY 0x030E
81 #define MSG_SMB_STAT_CACHE_DELETE 0x030F
83 * Samba4 compatibility
85 #define MSG_PVFS_NOTIFY 0x0310
87 * cluster reconfigure events
89 #define MSG_SMB_BRL_VALIDATE 0x0311
90 #define MSG_SMB_RELEASE_IP 0x0312
92 /* winbind messages */
93 #define MSG_WINBIND_FINISHED 0x0401
94 #define MSG_WINBIND_FORGET_STATE 0x0402
95 #define MSG_WINBIND_ONLINE 0x0403
96 #define MSG_WINBIND_OFFLINE 0x0404
97 #define MSG_WINBIND_ONLINESTATUS 0x0405
98 #define MSG_WINBIND_TRY_TO_GO_ONLINE 0x0406
99 #define MSG_WINBIND_FAILED_TO_GO_ONLINE 0x0407
102 * Special flags passed to message_send. Allocated from the top, lets see when
103 * it collides with the message types in the lower 16 bits :-)
107 * Under high load, this message can be dropped. Use for notify-style
108 * messages that are not critical for correct operation.
110 #define MSG_FLAG_LOWPRIORITY 0x80000000
113 /* Flags to classify messages - used in message_send_all() */
114 /* Sender will filter by flag. */
116 #define FLAG_MSG_GENERAL 0x0001
117 #define FLAG_MSG_SMBD 0x0002
118 #define FLAG_MSG_NMBD 0x0004
119 #define FLAG_MSG_PRINT_NOTIFY 0x0008
120 #define FLAG_MSG_PRINT_GENERAL 0x0010
126 struct messaging_context;
127 struct messaging_rec;
131 * struct messaging_context belongs to messages.c, but because we still have
132 * messaging_dispatch, we need it here. Once we get rid of signals for
133 * notifying processes, this will go.
136 struct messaging_context {
138 struct event_context *event_ctx;
139 struct messaging_callback *callbacks;
141 struct messaging_backend *local;
144 struct messaging_backend {
145 NTSTATUS (*send_fn)(struct messaging_context *msg_ctx,
146 struct server_id pid, int msg_type,
147 const struct data_blob *data,
148 struct messaging_backend *backend);
152 NTSTATUS messaging_tdb_init(struct messaging_context *msg_ctx,
154 struct messaging_backend **presult);
155 void message_dispatch(struct messaging_context *msg_ctx);
158 BOOL message_send_all(struct messaging_context *msg_ctx,
160 const void *buf, size_t len,
162 struct event_context *messaging_event_context(struct messaging_context *msg_ctx);
163 struct messaging_context *messaging_init(TALLOC_CTX *mem_ctx,
164 struct server_id server_id,
165 struct event_context *ev);
166 NTSTATUS messaging_register(struct messaging_context *msg_ctx,
169 void (*fn)(struct messaging_context *msg,
172 struct server_id server_id,
173 struct data_blob *data));
174 void messaging_deregister(struct messaging_context *ctx, uint32_t msg_type,
176 NTSTATUS messaging_send(struct messaging_context *msg_ctx,
177 struct server_id server,
178 uint32_t msg_type, const struct data_blob *data);
179 NTSTATUS messaging_send_buf(struct messaging_context *msg_ctx,
180 struct server_id server, uint32_t msg_type,
181 const uint8 *buf, size_t len);
182 void messaging_dispatch_rec(struct messaging_context *msg_ctx,
183 struct messaging_rec *rec);