2 Unix SMB/CIFS implementation.
3 client message handling routines
4 Copyright (C) Andrew Tridgell 1994-1998
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "../lib/util/tevent_ntstatus.h"
22 #include "async_smb.h"
23 #include "libsmb/libsmb.h"
24 #include "../libcli/smb/smbXcli_base.h"
26 struct cli_message_start_state
{
30 static void cli_message_start_done(struct tevent_req
*subreq
);
32 static struct tevent_req
*cli_message_start_send(TALLOC_CTX
*mem_ctx
,
33 struct tevent_context
*ev
,
34 struct cli_state
*cli
,
38 struct tevent_req
*req
, *subreq
;
39 struct cli_message_start_state
*state
;
45 req
= tevent_req_create(mem_ctx
, &state
,
46 struct cli_message_start_state
);
51 if (!convert_string_talloc(talloc_tos(), CH_UNIX
, CH_DOS
,
52 username
, strlen(username
)+1,
56 if (!convert_string_talloc(talloc_tos(), CH_UNIX
, CH_DOS
,
62 bytes
= talloc_array(state
, uint8_t, ulen
+hlen
+2);
69 memcpy(p
, utmp
, ulen
);
72 memcpy(p
, htmp
, hlen
);
77 subreq
= cli_smb_send(state
, ev
, cli
, SMBsendstrt
, 0, 0, NULL
,
78 talloc_get_size(bytes
), bytes
);
79 if (tevent_req_nomem(subreq
, req
)) {
80 return tevent_req_post(req
, ev
);
82 tevent_req_set_callback(subreq
, cli_message_start_done
, req
);
87 tevent_req_nterror(req
, NT_STATUS_NO_MEMORY
);
88 return tevent_req_post(req
, ev
);
91 static void cli_message_start_done(struct tevent_req
*subreq
)
93 struct tevent_req
*req
= tevent_req_callback_data(
94 subreq
, struct tevent_req
);
95 struct cli_message_start_state
*state
= tevent_req_data(
96 req
, struct cli_message_start_state
);
102 status
= cli_smb_recv(subreq
, state
, &inbuf
, 0, &wct
, &vwv
,
105 if (!NT_STATUS_IS_OK(status
)) {
107 tevent_req_nterror(req
, status
);
111 state
->grp
= SVAL(vwv
+0, 0);
115 tevent_req_done(req
);
118 static NTSTATUS
cli_message_start_recv(struct tevent_req
*req
,
121 struct cli_message_start_state
*state
= tevent_req_data(
122 req
, struct cli_message_start_state
);
125 if (tevent_req_is_nterror(req
, &status
)) {
132 struct cli_message_text_state
{
136 static void cli_message_text_done(struct tevent_req
*subreq
);
138 static struct tevent_req
*cli_message_text_send(TALLOC_CTX
*mem_ctx
,
139 struct tevent_context
*ev
,
140 struct cli_state
*cli
,
145 struct tevent_req
*req
, *subreq
;
146 struct cli_message_text_state
*state
;
151 req
= tevent_req_create(mem_ctx
, &state
,
152 struct cli_message_text_state
);
157 SSVAL(&state
->vwv
, 0, grp
);
159 if (convert_string_talloc(talloc_tos(), CH_UNIX
, CH_DOS
, msg
, msglen
,
164 DEBUG(3, ("Conversion failed, sending message in UNIX "
169 bytes
= talloc_array(state
, uint8_t, msglen
+3);
170 if (tevent_req_nomem(bytes
, req
)) {
172 return tevent_req_post(req
, ev
);
174 SCVAL(bytes
, 0, 1); /* pad */
175 SSVAL(bytes
+1, 0, msglen
);
176 memcpy(bytes
+3, msg
, msglen
);
179 subreq
= cli_smb_send(state
, ev
, cli
, SMBsendtxt
, 0, 1, &state
->vwv
,
180 talloc_get_size(bytes
), bytes
);
181 if (tevent_req_nomem(subreq
, req
)) {
182 return tevent_req_post(req
, ev
);
184 tevent_req_set_callback(subreq
, cli_message_text_done
, req
);
188 static void cli_message_text_done(struct tevent_req
*subreq
)
190 struct tevent_req
*req
= tevent_req_callback_data(
191 subreq
, struct tevent_req
);
194 status
= cli_smb_recv(subreq
, NULL
, NULL
, 0, NULL
, NULL
, NULL
, NULL
);
196 if (!NT_STATUS_IS_OK(status
)) {
197 tevent_req_nterror(req
, status
);
200 tevent_req_done(req
);
203 static NTSTATUS
cli_message_text_recv(struct tevent_req
*req
)
205 return tevent_req_simple_recv_ntstatus(req
);
208 struct cli_message_end_state
{
212 static void cli_message_end_done(struct tevent_req
*subreq
);
214 static struct tevent_req
*cli_message_end_send(TALLOC_CTX
*mem_ctx
,
215 struct tevent_context
*ev
,
216 struct cli_state
*cli
,
219 struct tevent_req
*req
, *subreq
;
220 struct cli_message_end_state
*state
;
222 req
= tevent_req_create(mem_ctx
, &state
,
223 struct cli_message_end_state
);
228 SSVAL(&state
->vwv
, 0, grp
);
230 subreq
= cli_smb_send(state
, ev
, cli
, SMBsendend
, 0, 1, &state
->vwv
,
232 if (tevent_req_nomem(subreq
, req
)) {
233 return tevent_req_post(req
, ev
);
235 tevent_req_set_callback(subreq
, cli_message_end_done
, req
);
239 static void cli_message_end_done(struct tevent_req
*subreq
)
241 struct tevent_req
*req
= tevent_req_callback_data(
242 subreq
, struct tevent_req
);
245 status
= cli_smb_recv(subreq
, NULL
, NULL
, 0, NULL
, NULL
, NULL
, NULL
);
247 if (!NT_STATUS_IS_OK(status
)) {
248 tevent_req_nterror(req
, status
);
251 tevent_req_done(req
);
254 static NTSTATUS
cli_message_end_recv(struct tevent_req
*req
)
256 return tevent_req_simple_recv_ntstatus(req
);
259 struct cli_message_state
{
260 struct tevent_context
*ev
;
261 struct cli_state
*cli
;
267 static void cli_message_started(struct tevent_req
*subreq
);
268 static void cli_message_sent(struct tevent_req
*subreq
);
269 static void cli_message_done(struct tevent_req
*subreq
);
271 struct tevent_req
*cli_message_send(TALLOC_CTX
*mem_ctx
,
272 struct tevent_context
*ev
,
273 struct cli_state
*cli
,
274 const char *host
, const char *username
,
277 struct tevent_req
*req
, *subreq
;
278 struct cli_message_state
*state
;
280 req
= tevent_req_create(mem_ctx
, &state
, struct cli_message_state
);
287 state
->message
= message
;
289 subreq
= cli_message_start_send(state
, ev
, cli
, host
, username
);
290 if (tevent_req_nomem(subreq
, req
)) {
291 return tevent_req_post(req
, ev
);
293 tevent_req_set_callback(subreq
, cli_message_started
, req
);
297 static void cli_message_started(struct tevent_req
*subreq
)
299 struct tevent_req
*req
= tevent_req_callback_data(
300 subreq
, struct tevent_req
);
301 struct cli_message_state
*state
= tevent_req_data(
302 req
, struct cli_message_state
);
306 status
= cli_message_start_recv(subreq
, &state
->grp
);
308 if (!NT_STATUS_IS_OK(status
)) {
309 tevent_req_nterror(req
, status
);
313 thistime
= MIN(127, strlen(state
->message
));
315 subreq
= cli_message_text_send(state
, state
->ev
, state
->cli
,
316 state
->grp
, state
->message
, thistime
);
317 if (tevent_req_nomem(subreq
, req
)) {
320 state
->sent
+= thistime
;
321 tevent_req_set_callback(subreq
, cli_message_sent
, req
);
324 static void cli_message_sent(struct tevent_req
*subreq
)
326 struct tevent_req
*req
= tevent_req_callback_data(
327 subreq
, struct tevent_req
);
328 struct cli_message_state
*state
= tevent_req_data(
329 req
, struct cli_message_state
);
331 size_t left
, thistime
;
333 status
= cli_message_text_recv(subreq
);
335 if (!NT_STATUS_IS_OK(status
)) {
336 tevent_req_nterror(req
, status
);
340 if (state
->sent
>= strlen(state
->message
)) {
341 subreq
= cli_message_end_send(state
, state
->ev
, state
->cli
,
343 if (tevent_req_nomem(subreq
, req
)) {
346 tevent_req_set_callback(subreq
, cli_message_done
, req
);
350 left
= strlen(state
->message
) - state
->sent
;
351 thistime
= MIN(127, left
);
353 subreq
= cli_message_text_send(state
, state
->ev
, state
->cli
,
355 state
->message
+ state
->sent
,
357 if (tevent_req_nomem(subreq
, req
)) {
360 state
->sent
+= thistime
;
361 tevent_req_set_callback(subreq
, cli_message_sent
, req
);
364 static void cli_message_done(struct tevent_req
*subreq
)
366 struct tevent_req
*req
= tevent_req_callback_data(
367 subreq
, struct tevent_req
);
370 status
= cli_message_end_recv(subreq
);
372 if (!NT_STATUS_IS_OK(status
)) {
373 tevent_req_nterror(req
, status
);
376 tevent_req_done(req
);
379 NTSTATUS
cli_message_recv(struct tevent_req
*req
)
381 return tevent_req_simple_recv_ntstatus(req
);
384 NTSTATUS
cli_message(struct cli_state
*cli
, const char *host
,
385 const char *username
, const char *message
)
387 TALLOC_CTX
*frame
= talloc_stackframe();
388 struct event_context
*ev
;
389 struct tevent_req
*req
;
390 NTSTATUS status
= NT_STATUS_OK
;
392 if (smbXcli_conn_has_async_calls(cli
->conn
)) {
394 * Can't use sync call while an async call is in flight
396 status
= NT_STATUS_INVALID_PARAMETER
;
400 ev
= event_context_init(frame
);
402 status
= NT_STATUS_NO_MEMORY
;
406 req
= cli_message_send(frame
, ev
, cli
, host
, username
, message
);
408 status
= NT_STATUS_NO_MEMORY
;
412 if (!tevent_req_poll(req
, ev
)) {
413 status
= map_nt_error_from_unix(errno
);
417 status
= cli_message_recv(req
);