1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
|
/*
Unix SMB/CIFS implementation.
a raw async NBT library
Copyright (C) Andrew Tridgell 2005
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/>.
*/
#ifndef __LIBNBT_H__
#define __LIBNBT_H__
#include "librpc/gen_ndr/nbt.h"
#include "librpc/ndr/libndr.h"
/*
possible states for pending requests
*/
enum nbt_request_state {NBT_REQUEST_SEND,
NBT_REQUEST_WAIT,
NBT_REQUEST_DONE,
NBT_REQUEST_TIMEOUT,
NBT_REQUEST_ERROR};
/*
a nbt name request
*/
struct nbt_name_request {
struct nbt_name_request *next, *prev;
enum nbt_request_state state;
NTSTATUS status;
/* the socket this was on */
struct nbt_name_socket *nbtsock;
/* where to send the request */
struct socket_address *dest;
/* timeout between retries */
int timeout;
/* how many retries to send on timeout */
int num_retries;
/* whether we have received a WACK */
bool received_wack;
/* the timeout event */
struct timed_event *te;
/* the name transaction id */
uint16_t name_trn_id;
/* is it a reply? */
bool is_reply;
/* the encoded request */
DATA_BLOB encoded;
/* shall we allow multiple replies? */
bool allow_multiple_replies;
unsigned int num_replies;
struct nbt_name_reply {
struct nbt_name_packet *packet;
struct socket_address *dest;
} *replies;
/* information on what to do on completion */
struct {
void (*fn)(struct nbt_name_request *);
void *private;
} async;
};
/*
context structure for operations on name queries
*/
struct nbt_name_socket {
struct socket_context *sock;
struct event_context *event_ctx;
struct smb_iconv_convenience *iconv_convenience;
/* a queue of requests pending to be sent */
struct nbt_name_request *send_queue;
/* the fd event */
struct fd_event *fde;
/* mapping from name_trn_id to pending event */
struct idr_context *idr;
/* how many requests are waiting for a reply */
uint16_t num_pending;
/* what to do with incoming request packets */
struct {
void (*handler)(struct nbt_name_socket *, struct nbt_name_packet *,
struct socket_address *);
void *private;
} incoming;
/* what to do with unexpected replies */
struct {
void (*handler)(struct nbt_name_socket *, struct nbt_name_packet *,
struct socket_address *);
void *private;
} unexpected;
};
/* a simple name query */
struct nbt_name_query {
struct {
struct nbt_name name;
const char *dest_addr;
uint16_t dest_port;
bool broadcast;
bool wins_lookup;
int timeout; /* in seconds */
int retries;
} in;
struct {
const char *reply_from;
struct nbt_name name;
int16_t num_addrs;
const char **reply_addrs;
} out;
};
/* a simple name status query */
struct nbt_name_status {
struct {
struct nbt_name name;
const char *dest_addr;
uint16_t dest_port;
int timeout; /* in seconds */
int retries;
} in;
struct {
const char *reply_from;
struct nbt_name name;
struct nbt_rdata_status status;
} out;
};
/* a name registration request */
struct nbt_name_register {
struct {
struct nbt_name name;
const char *dest_addr;
uint16_t dest_port;
const char *address;
uint16_t nb_flags;
bool register_demand;
bool broadcast;
bool multi_homed;
uint32_t ttl;
int timeout; /* in seconds */
int retries;
} in;
struct {
const char *reply_from;
struct nbt_name name;
const char *reply_addr;
uint8_t rcode;
} out;
};
/* a send 3 times then demand name broadcast name registration */
struct nbt_name_register_bcast {
struct {
struct nbt_name name;
const char *dest_addr;
uint16_t dest_port;
const char *address;
uint16_t nb_flags;
uint32_t ttl;
} in;
};
/* wins name register with multiple wins servers to try and multiple
addresses to register */
struct nbt_name_register_wins {
struct {
struct nbt_name name;
const char **wins_servers;
uint16_t wins_port;
const char **addresses;
uint16_t nb_flags;
uint32_t ttl;
} in;
struct {
const char *wins_server;
uint8_t rcode;
} out;
};
/* a name refresh request */
struct nbt_name_refresh {
struct {
struct nbt_name name;
const char *dest_addr;
uint16_t dest_port;
const char *address;
uint16_t nb_flags;
bool broadcast;
uint32_t ttl;
int timeout; /* in seconds */
int retries;
} in;
struct {
const char *reply_from;
struct nbt_name name;
const char *reply_addr;
uint8_t rcode;
} out;
};
/* wins name refresh with multiple wins servers to try and multiple
addresses to register */
struct nbt_name_refresh_wins {
struct {
struct nbt_name name;
const char **wins_servers;
uint16_t wins_port;
const char **addresses;
uint16_t nb_flags;
uint32_t ttl;
} in;
struct {
const char *wins_server;
uint8_t rcode;
} out;
};
/* a name release request */
struct nbt_name_release {
struct {
struct nbt_name name;
const char *dest_addr;
uint16_t dest_port;
const char *address;
uint16_t nb_flags;
bool broadcast;
int timeout; /* in seconds */
int retries;
} in;
struct {
const char *reply_from;
struct nbt_name name;
const char *reply_addr;
uint8_t rcode;
} out;
};
struct nbt_name_socket *nbt_name_socket_init(TALLOC_CTX *mem_ctx,
struct event_context *event_ctx,
struct smb_iconv_convenience *iconv_convenience);
struct nbt_name_request *nbt_name_query_send(struct nbt_name_socket *nbtsock,
struct nbt_name_query *io);
NTSTATUS nbt_name_query_recv(struct nbt_name_request *req,
TALLOC_CTX *mem_ctx, struct nbt_name_query *io);
NTSTATUS nbt_name_query(struct nbt_name_socket *nbtsock,
TALLOC_CTX *mem_ctx, struct nbt_name_query *io);
struct nbt_name_request *nbt_name_status_send(struct nbt_name_socket *nbtsock,
struct nbt_name_status *io);
NTSTATUS nbt_name_status_recv(struct nbt_name_request *req,
TALLOC_CTX *mem_ctx, struct nbt_name_status *io);
NTSTATUS nbt_name_status(struct nbt_name_socket *nbtsock,
TALLOC_CTX *mem_ctx, struct nbt_name_status *io);
NTSTATUS nbt_name_dup(TALLOC_CTX *mem_ctx, struct nbt_name *name, struct nbt_name *newname);
NTSTATUS nbt_name_to_blob(TALLOC_CTX *mem_ctx, struct smb_iconv_convenience *iconv_convenience, DATA_BLOB *blob, struct nbt_name *name);
NTSTATUS nbt_name_from_blob(TALLOC_CTX *mem_ctx, const DATA_BLOB *blob, struct nbt_name *name);
void nbt_choose_called_name(TALLOC_CTX *mem_ctx, struct nbt_name *n, const char *name, int type);
char *nbt_name_string(TALLOC_CTX *mem_ctx, const struct nbt_name *name);
NTSTATUS nbt_name_register(struct nbt_name_socket *nbtsock,
TALLOC_CTX *mem_ctx, struct nbt_name_register *io);
NTSTATUS nbt_name_refresh(struct nbt_name_socket *nbtsock,
TALLOC_CTX *mem_ctx, struct nbt_name_refresh *io);
NTSTATUS nbt_name_release(struct nbt_name_socket *nbtsock,
TALLOC_CTX *mem_ctx, struct nbt_name_release *io);
NTSTATUS nbt_name_register_wins(struct nbt_name_socket *nbtsock,
TALLOC_CTX *mem_ctx,
struct nbt_name_register_wins *io);
NTSTATUS nbt_name_refresh_wins(struct nbt_name_socket *nbtsock,
TALLOC_CTX *mem_ctx,
struct nbt_name_refresh_wins *io);
NTSTATUS nbt_name_register_recv(struct nbt_name_request *req,
TALLOC_CTX *mem_ctx, struct nbt_name_register *io);
struct nbt_name_request *nbt_name_register_send(struct nbt_name_socket *nbtsock,
struct nbt_name_register *io);
NTSTATUS nbt_name_release_recv(struct nbt_name_request *req,
TALLOC_CTX *mem_ctx, struct nbt_name_release *io);
struct nbt_name_request *nbt_name_release_send(struct nbt_name_socket *nbtsock,
struct nbt_name_release *io);
NTSTATUS nbt_name_refresh_recv(struct nbt_name_request *req,
TALLOC_CTX *mem_ctx, struct nbt_name_refresh *io);
NTSTATUS nbt_set_incoming_handler(struct nbt_name_socket *nbtsock,
void (*handler)(struct nbt_name_socket *, struct nbt_name_packet *,
struct socket_address *),
void *private);
NTSTATUS nbt_name_reply_send(struct nbt_name_socket *nbtsock,
struct socket_address *dest,
struct nbt_name_packet *request);
NDR_SCALAR_PROTO(wrepl_nbt_name, const struct nbt_name *)
NDR_SCALAR_PROTO(nbt_string, const char *);
NDR_BUFFER_PROTO(nbt_name, struct nbt_name)
NTSTATUS nbt_rcode_to_ntstatus(uint8_t rcode);
struct composite_context;
struct composite_context *nbt_name_register_bcast_send(struct nbt_name_socket *nbtsock,
struct nbt_name_register_bcast *io);
NTSTATUS nbt_name_register_bcast_recv(struct composite_context *c);
struct composite_context *nbt_name_register_wins_send(struct nbt_name_socket *nbtsock,
struct nbt_name_register_wins *io);
NTSTATUS nbt_name_refresh_wins_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
struct nbt_name_refresh_wins *io);
struct composite_context *nbt_name_refresh_wins_send(struct nbt_name_socket *nbtsock,
struct nbt_name_refresh_wins *io);
NTSTATUS nbt_name_register_wins_recv(struct composite_context *c, TALLOC_CTX *mem_ctx,
struct nbt_name_register_wins *io);
#endif /* __LIBNBT_H__ */
|
