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/>.
22 struct cli_message_start_state
{
26 static void cli_message_start_done(struct tevent_req
*subreq
);
28 static struct tevent_req
*cli_message_start_send(TALLOC_CTX
*mem_ctx
,
29 struct tevent_context
*ev
,
30 struct cli_state
*cli
,
34 struct tevent_req
*req
, *subreq
;
35 struct cli_message_start_state
*state
;
41 req
= tevent_req_create(mem_ctx
, &state
,
42 struct cli_message_start_state
);
47 if (!convert_string_talloc(talloc_tos(), CH_UNIX
, CH_DOS
,
48 username
, strlen(username
)+1,
49 &utmp
, &ulen
, true)) {
52 if (!convert_string_talloc(talloc_tos(), CH_UNIX
, CH_DOS
,
54 &htmp
, &hlen
, true)) {
58 bytes
= talloc_array(state
, uint8_t, ulen
+hlen
+2);
65 memcpy(p
, utmp
, ulen
);
68 memcpy(p
, htmp
, hlen
);
73 subreq
= cli_smb_send(state
, ev
, cli
, SMBsendstrt
, 0, 0, NULL
,
74 talloc_get_size(bytes
), bytes
);
75 if (tevent_req_nomem(subreq
, req
)) {
76 return tevent_req_post(req
, ev
);
78 tevent_req_set_callback(subreq
, cli_message_start_done
, req
);
83 tevent_req_nterror(req
, NT_STATUS_NO_MEMORY
);
84 return tevent_req_post(req
, ev
);
87 static void cli_message_start_done(struct tevent_req
*subreq
)
89 struct tevent_req
*req
= tevent_req_callback_data(
90 subreq
, struct tevent_req
);
91 struct cli_message_start_state
*state
= tevent_req_data(
92 req
, struct cli_message_start_state
);
98 status
= cli_smb_recv(subreq
, state
, &inbuf
, 0, &wct
, &vwv
,
101 if (!NT_STATUS_IS_OK(status
)) {
103 tevent_req_nterror(req
, status
);
107 state
->grp
= SVAL(vwv
+0, 0);
111 tevent_req_done(req
);
114 static NTSTATUS
cli_message_start_recv(struct tevent_req
*req
,
117 struct cli_message_start_state
*state
= tevent_req_data(
118 req
, struct cli_message_start_state
);
121 if (tevent_req_is_nterror(req
, &status
)) {
128 struct cli_message_text_state
{
132 static void cli_message_text_done(struct tevent_req
*subreq
);
134 static struct tevent_req
*cli_message_text_send(TALLOC_CTX
*mem_ctx
,
135 struct tevent_context
*ev
,
136 struct cli_state
*cli
,
141 struct tevent_req
*req
, *subreq
;
142 struct cli_message_text_state
*state
;
147 req
= tevent_req_create(mem_ctx
, &state
,
148 struct cli_message_text_state
);
153 SSVAL(&state
->vwv
, 0, grp
);
155 if (convert_string_talloc(talloc_tos(), CH_UNIX
, CH_DOS
, msg
, msglen
,
156 &tmp
, &tmplen
, true)) {
160 DEBUG(3, ("Conversion failed, sending message in UNIX "
165 bytes
= talloc_array(state
, uint8_t, msglen
+3);
166 if (tevent_req_nomem(bytes
, req
)) {
168 return tevent_req_post(req
, ev
);
170 SCVAL(bytes
, 0, 1); /* pad */
171 SSVAL(bytes
+1, 0, msglen
);
172 memcpy(bytes
+3, msg
, msglen
);
175 subreq
= cli_smb_send(state
, ev
, cli
, SMBsendtxt
, 0, 1, &state
->vwv
,
176 talloc_get_size(bytes
), bytes
);
177 if (tevent_req_nomem(subreq
, req
)) {
178 return tevent_req_post(req
, ev
);
180 tevent_req_set_callback(subreq
, cli_message_text_done
, req
);
184 static void cli_message_text_done(struct tevent_req
*subreq
)
186 struct tevent_req
*req
= tevent_req_callback_data(
187 subreq
, struct tevent_req
);
190 status
= cli_smb_recv(subreq
, NULL
, NULL
, 0, NULL
, NULL
, NULL
, NULL
);
192 if (!NT_STATUS_IS_OK(status
)) {
193 tevent_req_nterror(req
, status
);
196 tevent_req_done(req
);
199 static NTSTATUS
cli_message_text_recv(struct tevent_req
*req
)
201 return tevent_req_simple_recv_ntstatus(req
);
204 struct cli_message_end_state
{
208 static void cli_message_end_done(struct tevent_req
*subreq
);
210 static struct tevent_req
*cli_message_end_send(TALLOC_CTX
*mem_ctx
,
211 struct tevent_context
*ev
,
212 struct cli_state
*cli
,
215 struct tevent_req
*req
, *subreq
;
216 struct cli_message_end_state
*state
;
218 req
= tevent_req_create(mem_ctx
, &state
,
219 struct cli_message_end_state
);
224 SSVAL(&state
->vwv
, 0, grp
);
226 subreq
= cli_smb_send(state
, ev
, cli
, SMBsendend
, 0, 1, &state
->vwv
,
228 if (tevent_req_nomem(subreq
, req
)) {
229 return tevent_req_post(req
, ev
);
231 tevent_req_set_callback(subreq
, cli_message_end_done
, req
);
235 static void cli_message_end_done(struct tevent_req
*subreq
)
237 struct tevent_req
*req
= tevent_req_callback_data(
238 subreq
, struct tevent_req
);
241 status
= cli_smb_recv(subreq
, NULL
, NULL
, 0, NULL
, NULL
, NULL
, NULL
);
243 if (!NT_STATUS_IS_OK(status
)) {
244 tevent_req_nterror(req
, status
);
247 tevent_req_done(req
);
250 static NTSTATUS
cli_message_end_recv(struct tevent_req
*req
)
252 return tevent_req_simple_recv_ntstatus(req
);
255 struct cli_message_state
{
256 struct tevent_context
*ev
;
257 struct cli_state
*cli
;
263 static void cli_message_started(struct tevent_req
*subreq
);
264 static void cli_message_sent(struct tevent_req
*subreq
);
265 static void cli_message_done(struct tevent_req
*subreq
);
267 struct tevent_req
*cli_message_send(TALLOC_CTX
*mem_ctx
,
268 struct tevent_context
*ev
,
269 struct cli_state
*cli
,
270 const char *host
, const char *username
,
273 struct tevent_req
*req
, *subreq
;
274 struct cli_message_state
*state
;
276 req
= tevent_req_create(mem_ctx
, &state
, struct cli_message_state
);
283 state
->message
= message
;
285 subreq
= cli_message_start_send(state
, ev
, cli
, host
, username
);
286 if (tevent_req_nomem(subreq
, req
)) {
287 return tevent_req_post(req
, ev
);
289 tevent_req_set_callback(subreq
, cli_message_started
, req
);
293 static void cli_message_started(struct tevent_req
*subreq
)
295 struct tevent_req
*req
= tevent_req_callback_data(
296 subreq
, struct tevent_req
);
297 struct cli_message_state
*state
= tevent_req_data(
298 req
, struct cli_message_state
);
302 status
= cli_message_start_recv(subreq
, &state
->grp
);
304 if (!NT_STATUS_IS_OK(status
)) {
305 tevent_req_nterror(req
, status
);
309 thistime
= MIN(127, strlen(state
->message
));
311 subreq
= cli_message_text_send(state
, state
->ev
, state
->cli
,
312 state
->grp
, state
->message
, thistime
);
313 if (tevent_req_nomem(subreq
, req
)) {
316 state
->sent
+= thistime
;
317 tevent_req_set_callback(subreq
, cli_message_sent
, req
);
320 static void cli_message_sent(struct tevent_req
*subreq
)
322 struct tevent_req
*req
= tevent_req_callback_data(
323 subreq
, struct tevent_req
);
324 struct cli_message_state
*state
= tevent_req_data(
325 req
, struct cli_message_state
);
327 size_t left
, thistime
;
329 status
= cli_message_text_recv(subreq
);
331 if (!NT_STATUS_IS_OK(status
)) {
332 tevent_req_nterror(req
, status
);
336 if (state
->sent
>= strlen(state
->message
)) {
337 subreq
= cli_message_end_send(state
, state
->ev
, state
->cli
,
339 if (tevent_req_nomem(subreq
, req
)) {
342 tevent_req_set_callback(subreq
, cli_message_done
, req
);
346 left
= strlen(state
->message
) - state
->sent
;
347 thistime
= MIN(127, left
);
349 subreq
= cli_message_text_send(state
, state
->ev
, state
->cli
,
351 state
->message
+ state
->sent
,
353 if (tevent_req_nomem(subreq
, req
)) {
356 state
->sent
+= thistime
;
357 tevent_req_set_callback(subreq
, cli_message_sent
, req
);
360 static void cli_message_done(struct tevent_req
*subreq
)
362 struct tevent_req
*req
= tevent_req_callback_data(
363 subreq
, struct tevent_req
);
366 status
= cli_message_end_recv(subreq
);
368 if (!NT_STATUS_IS_OK(status
)) {
369 tevent_req_nterror(req
, status
);
372 tevent_req_done(req
);
375 NTSTATUS
cli_message_recv(struct tevent_req
*req
)
377 return tevent_req_simple_recv_ntstatus(req
);
380 NTSTATUS
cli_message(struct cli_state
*cli
, const char *host
,
381 const char *username
, const char *message
)
383 TALLOC_CTX
*frame
= talloc_stackframe();
384 struct event_context
*ev
;
385 struct tevent_req
*req
;
386 NTSTATUS status
= NT_STATUS_OK
;
388 if (cli_has_async_calls(cli
)) {
390 * Can't use sync call while an async call is in flight
392 status
= NT_STATUS_INVALID_PARAMETER
;
396 ev
= event_context_init(frame
);
398 status
= NT_STATUS_NO_MEMORY
;
402 req
= cli_message_send(frame
, ev
, cli
, host
, username
, message
);
404 status
= NT_STATUS_NO_MEMORY
;
408 if (!tevent_req_poll(req
, ev
)) {
409 status
= map_nt_error_from_unix(errno
);
413 status
= cli_message_recv(req
);