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[GLUE] Rsync SAMBA_3_0 SVN r25598 in order to create the v3-0-test branch.
[Samba.git] / source / libsmb / clitrans.c
blobf212f499940620110264aa97c6ebd4b1da57a0e5
1 /*
2 Unix SMB/CIFS implementation.
3 client transaction calls
4 Copyright (C) Andrew Tridgell 1994-1998
5
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 2 of the License, or
9 (at your option) any later version.
10
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.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21 #include "includes.h"
22
23
24 /****************************************************************************
25 Send a SMB trans or trans2 request.
26 ****************************************************************************/
27
28 BOOL cli_send_trans(struct cli_state *cli, int trans,
29 const char *pipe_name,
30 int fid, int flags,
31 uint16 *setup, unsigned int lsetup, unsigned int msetup,
32 const char *param, unsigned int lparam, unsigned int mparam,
33 const char *data, unsigned int ldata, unsigned int mdata)
34 {
35 unsigned int i;
36 unsigned int this_ldata,this_lparam;
37 unsigned int tot_data=0,tot_param=0;
38 char *outdata,*outparam;
39 char *p;
40 int pipe_name_len=0;
41 uint16 mid;
42
43 this_lparam = MIN(lparam,cli->max_xmit - (500+lsetup*2)); /* hack */
44 this_ldata = MIN(ldata,cli->max_xmit - (500+lsetup*2+this_lparam));
45
46 memset(cli->outbuf,'\0',smb_size);
47 set_message(cli->outbuf,14+lsetup,0,True);
48 SCVAL(cli->outbuf,smb_com,trans);
49 SSVAL(cli->outbuf,smb_tid, cli->cnum);
50 cli_setup_packet(cli);
51
52 /*
53 * Save the mid we're using. We need this for finding
54 * signing replies.
55 */
56
57 mid = cli->mid;
58
59 if (pipe_name) {
60 pipe_name_len = clistr_push(cli, smb_buf(cli->outbuf), pipe_name, -1, STR_TERMINATE);
61 }
62
63 outparam = smb_buf(cli->outbuf)+(trans==SMBtrans ? pipe_name_len : 3);
64 outdata = outparam+this_lparam;
65
66 /* primary request */
67 SSVAL(cli->outbuf,smb_tpscnt,lparam); /* tpscnt */
68 SSVAL(cli->outbuf,smb_tdscnt,ldata); /* tdscnt */
69 SSVAL(cli->outbuf,smb_mprcnt,mparam); /* mprcnt */
70 SSVAL(cli->outbuf,smb_mdrcnt,mdata); /* mdrcnt */
71 SCVAL(cli->outbuf,smb_msrcnt,msetup); /* msrcnt */
72 SSVAL(cli->outbuf,smb_flags,flags); /* flags */
73 SIVAL(cli->outbuf,smb_timeout,0); /* timeout */
74 SSVAL(cli->outbuf,smb_pscnt,this_lparam); /* pscnt */
75 SSVAL(cli->outbuf,smb_psoff,smb_offset(outparam,cli->outbuf)); /* psoff */
76 SSVAL(cli->outbuf,smb_dscnt,this_ldata); /* dscnt */
77 SSVAL(cli->outbuf,smb_dsoff,smb_offset(outdata,cli->outbuf)); /* dsoff */
78 SCVAL(cli->outbuf,smb_suwcnt,lsetup); /* suwcnt */
79 for (i=0;i<lsetup;i++) /* setup[] */
80 SSVAL(cli->outbuf,smb_setup+i*2,setup[i]);
81 p = smb_buf(cli->outbuf);
82 if (trans != SMBtrans) {
83 *p++ = 0; /* put in a null smb_name */
84 *p++ = 'D'; *p++ = ' '; /* observed in OS/2 */
85 }
86 if (this_lparam) /* param[] */
87 memcpy(outparam,param,this_lparam);
88 if (this_ldata) /* data[] */
89 memcpy(outdata,data,this_ldata);
90 cli_setup_bcc(cli, outdata+this_ldata);
91
92 show_msg(cli->outbuf);
93
94 if (!cli_send_smb(cli)) {
95 return False;
96 }
97
98 /* Note we're in a trans state. Save the sequence
99 * numbers for replies. */
100 client_set_trans_sign_state_on(cli, mid);
101
102 if (this_ldata < ldata || this_lparam < lparam) {
103 /* receive interim response */
104 if (!cli_receive_smb(cli) || cli_is_error(cli)) {
105 client_set_trans_sign_state_off(cli, mid);
106 return(False);
107 }
108
109 tot_data = this_ldata;
110 tot_param = this_lparam;
111
112 while (tot_data < ldata || tot_param < lparam) {
113 this_lparam = MIN(lparam-tot_param,cli->max_xmit - 500); /* hack */
114 this_ldata = MIN(ldata-tot_data,cli->max_xmit - (500+this_lparam));
115
116 set_message(cli->outbuf,trans==SMBtrans?8:9,0,True);
117 SCVAL(cli->outbuf,smb_com,(trans==SMBtrans ? SMBtranss : SMBtranss2));
118
119 outparam = smb_buf(cli->outbuf);
120 outdata = outparam+this_lparam;
121
122 /* secondary request */
123 SSVAL(cli->outbuf,smb_tpscnt,lparam); /* tpscnt */
124 SSVAL(cli->outbuf,smb_tdscnt,ldata); /* tdscnt */
125 SSVAL(cli->outbuf,smb_spscnt,this_lparam); /* pscnt */
126 SSVAL(cli->outbuf,smb_spsoff,smb_offset(outparam,cli->outbuf)); /* psoff */
127 SSVAL(cli->outbuf,smb_spsdisp,tot_param); /* psdisp */
128 SSVAL(cli->outbuf,smb_sdscnt,this_ldata); /* dscnt */
129 SSVAL(cli->outbuf,smb_sdsoff,smb_offset(outdata,cli->outbuf)); /* dsoff */
130 SSVAL(cli->outbuf,smb_sdsdisp,tot_data); /* dsdisp */
131 if (trans==SMBtrans2)
132 SSVALS(cli->outbuf,smb_sfid,fid); /* fid */
133 if (this_lparam) /* param[] */
134 memcpy(outparam,param+tot_param,this_lparam);
135 if (this_ldata) /* data[] */
136 memcpy(outdata,data+tot_data,this_ldata);
137 cli_setup_bcc(cli, outdata+this_ldata);
138
139 /*
140 * Save the mid we're using. We need this for finding
141 * signing replies.
142 */
143 mid = cli->mid;
144
145 show_msg(cli->outbuf);
146 if (!cli_send_smb(cli)) {
147 client_set_trans_sign_state_off(cli, mid);
148 return False;
149 }
150
151 /* Ensure we use the same mid for the secondaries. */
152 cli->mid = mid;
153
154 tot_data += this_ldata;
155 tot_param += this_lparam;
156 }
157 }
158
159 return(True);
160 }
161
162 /****************************************************************************
163 Receive a SMB trans or trans2 response allocating the necessary memory.
164 ****************************************************************************/
165
166 BOOL cli_receive_trans(struct cli_state *cli,int trans,
167 char **param, unsigned int *param_len,
168 char **data, unsigned int *data_len)
169 {
170 unsigned int total_data=0;
171 unsigned int total_param=0;
172 unsigned int this_data,this_param;
173 NTSTATUS status;
174 BOOL ret = False;
175
176 *data_len = *param_len = 0;
177
178 if (!cli_receive_smb(cli)) {
179 return False;
180 }
181
182 show_msg(cli->inbuf);
183
184 /* sanity check */
185 if (CVAL(cli->inbuf,smb_com) != trans) {
186 DEBUG(0,("Expected %s response, got command 0x%02x\n",
187 trans==SMBtrans?"SMBtrans":"SMBtrans2",
188 CVAL(cli->inbuf,smb_com)));
189 return False;
190 }
191
192 /*
193 * An NT RPC pipe call can return ERRDOS, ERRmoredata
194 * to a trans call. This is not an error and should not
195 * be treated as such. Note that STATUS_NO_MORE_FILES is
196 * returned when a trans2 findfirst/next finishes.
197 */
198 status = cli_nt_error(cli);
199
200 if (NT_STATUS_IS_ERR(status) ||
201 NT_STATUS_EQUAL(status,STATUS_NO_MORE_FILES) ||
202 NT_STATUS_EQUAL(status,STATUS_INACCESSIBLE_SYSTEM_SHORTCUT)) {
203 goto out;
204 }
205
206 /* parse out the lengths */
207 total_data = SVAL(cli->inbuf,smb_tdrcnt);
208 total_param = SVAL(cli->inbuf,smb_tprcnt);
209
210 /* allocate it */
211 if (total_data!=0) {
212 *data = (char *)SMB_REALLOC(*data,total_data);
213 if (!(*data)) {
214 DEBUG(0,("cli_receive_trans: failed to enlarge data buffer\n"));
215 goto out;
216 }
217 }
218
219 if (total_param!=0) {
220 *param = (char *)SMB_REALLOC(*param,total_param);
221 if (!(*param)) {
222 DEBUG(0,("cli_receive_trans: failed to enlarge param buffer\n"));
223 goto out;
224 }
225 }
226
227 for (;;) {
228 this_data = SVAL(cli->inbuf,smb_drcnt);
229 this_param = SVAL(cli->inbuf,smb_prcnt);
230
231 if (this_data + *data_len > total_data ||
232 this_param + *param_len > total_param) {
233 DEBUG(1,("Data overflow in cli_receive_trans\n"));
234 goto out;
235 }
236
237 if (this_data + *data_len < this_data ||
238 this_data + *data_len < *data_len ||
239 this_param + *param_len < this_param ||
240 this_param + *param_len < *param_len) {
241 DEBUG(1,("Data overflow in cli_receive_trans\n"));
242 goto out;
243 }
244
245 if (this_data) {
246 unsigned int data_offset_out = SVAL(cli->inbuf,smb_drdisp);
247 unsigned int data_offset_in = SVAL(cli->inbuf,smb_droff);
248
249 if (data_offset_out > total_data ||
250 data_offset_out + this_data > total_data ||
251 data_offset_out + this_data < data_offset_out ||
252 data_offset_out + this_data < this_data) {
253 DEBUG(1,("Data overflow in cli_receive_trans\n"));
254 goto out;
255 }
256 if (data_offset_in > cli->bufsize ||
257 data_offset_in + this_data > cli->bufsize ||
258 data_offset_in + this_data < data_offset_in ||
259 data_offset_in + this_data < this_data) {
260 DEBUG(1,("Data overflow in cli_receive_trans\n"));
261 goto out;
262 }
263
264 memcpy(*data + data_offset_out, smb_base(cli->inbuf) + data_offset_in, this_data);
265 }
266 if (this_param) {
267 unsigned int param_offset_out = SVAL(cli->inbuf,smb_prdisp);
268 unsigned int param_offset_in = SVAL(cli->inbuf,smb_proff);
269
270 if (param_offset_out > total_param ||
271 param_offset_out + this_param > total_param ||
272 param_offset_out + this_param < param_offset_out ||
273 param_offset_out + this_param < this_param) {
274 DEBUG(1,("Param overflow in cli_receive_trans\n"));
275 goto out;
276 }
277 if (param_offset_in > cli->bufsize ||
278 param_offset_in + this_param > cli->bufsize ||
279 param_offset_in + this_param < param_offset_in ||
280 param_offset_in + this_param < this_param) {
281 DEBUG(1,("Param overflow in cli_receive_trans\n"));
282 goto out;
283 }
284
285 memcpy(*param + param_offset_out, smb_base(cli->inbuf) + param_offset_in, this_param);
286 }
287 *data_len += this_data;
288 *param_len += this_param;
289
290 if (total_data <= *data_len && total_param <= *param_len) {
291 ret = True;
292 break;
293 }
294
295 if (!cli_receive_smb(cli)) {
296 goto out;
297 }
298
299 show_msg(cli->inbuf);
300
301 /* sanity check */
302 if (CVAL(cli->inbuf,smb_com) != trans) {
303 DEBUG(0,("Expected %s response, got command 0x%02x\n",
304 trans==SMBtrans?"SMBtrans":"SMBtrans2",
305 CVAL(cli->inbuf,smb_com)));
306 goto out;
307 }
308 if (NT_STATUS_IS_ERR(cli_nt_error(cli))) {
309 goto out;
310 }
311
312 /* parse out the total lengths again - they can shrink! */
313 if (SVAL(cli->inbuf,smb_tdrcnt) < total_data)
314 total_data = SVAL(cli->inbuf,smb_tdrcnt);
315 if (SVAL(cli->inbuf,smb_tprcnt) < total_param)
316 total_param = SVAL(cli->inbuf,smb_tprcnt);
317
318 if (total_data <= *data_len && total_param <= *param_len) {
319 ret = True;
320 break;
321 }
322 }
323
324 out:
325
326 client_set_trans_sign_state_off(cli, SVAL(cli->inbuf,smb_mid));
327 return ret;
328 }
329
330 /****************************************************************************
331 Send a SMB nttrans request.
332 ****************************************************************************/
333
334 BOOL cli_send_nt_trans(struct cli_state *cli,
335 int function,
336 int flags,
337 uint16 *setup, unsigned int lsetup, unsigned int msetup,
338 char *param, unsigned int lparam, unsigned int mparam,
339 char *data, unsigned int ldata, unsigned int mdata)
340 {
341 unsigned int i;
342 unsigned int this_ldata,this_lparam;
343 unsigned int tot_data=0,tot_param=0;
344 uint16 mid;
345 char *outdata,*outparam;
346
347 this_lparam = MIN(lparam,cli->max_xmit - (500+lsetup*2)); /* hack */
348 this_ldata = MIN(ldata,cli->max_xmit - (500+lsetup*2+this_lparam));
349
350 memset(cli->outbuf,'\0',smb_size);
351 set_message(cli->outbuf,19+lsetup,0,True);
352 SCVAL(cli->outbuf,smb_com,SMBnttrans);
353 SSVAL(cli->outbuf,smb_tid, cli->cnum);
354 cli_setup_packet(cli);
355
356 /*
357 * Save the mid we're using. We need this for finding
358 * signing replies.
359 */
360
361 mid = cli->mid;
362
363 outparam = smb_buf(cli->outbuf)+3;
364 outdata = outparam+this_lparam;
365
366 /* primary request */
367 SCVAL(cli->outbuf,smb_nt_MaxSetupCount,msetup);
368 SCVAL(cli->outbuf,smb_nt_Flags,flags);
369 SIVAL(cli->outbuf,smb_nt_TotalParameterCount, lparam);
370 SIVAL(cli->outbuf,smb_nt_TotalDataCount, ldata);
371 SIVAL(cli->outbuf,smb_nt_MaxParameterCount, mparam);
372 SIVAL(cli->outbuf,smb_nt_MaxDataCount, mdata);
373 SIVAL(cli->outbuf,smb_nt_ParameterCount, this_lparam);
374 SIVAL(cli->outbuf,smb_nt_ParameterOffset, smb_offset(outparam,cli->outbuf));
375 SIVAL(cli->outbuf,smb_nt_DataCount, this_ldata);
376 SIVAL(cli->outbuf,smb_nt_DataOffset, smb_offset(outdata,cli->outbuf));
377 SIVAL(cli->outbuf,smb_nt_SetupCount, lsetup);
378 SIVAL(cli->outbuf,smb_nt_Function, function);
379 for (i=0;i<lsetup;i++) /* setup[] */
380 SSVAL(cli->outbuf,smb_nt_SetupStart+i*2,setup[i]);
381
382 if (this_lparam) /* param[] */
383 memcpy(outparam,param,this_lparam);
384 if (this_ldata) /* data[] */
385 memcpy(outdata,data,this_ldata);
386
387 cli_setup_bcc(cli, outdata+this_ldata);
388
389 show_msg(cli->outbuf);
390 if (!cli_send_smb(cli)) {
391 return False;
392 }
393
394 /* Note we're in a trans state. Save the sequence
395 * numbers for replies. */
396 client_set_trans_sign_state_on(cli, mid);
397
398 if (this_ldata < ldata || this_lparam < lparam) {
399 /* receive interim response */
400 if (!cli_receive_smb(cli) || cli_is_error(cli)) {
401 client_set_trans_sign_state_off(cli, mid);
402 return(False);
403 }
404
405 tot_data = this_ldata;
406 tot_param = this_lparam;
407
408 while (tot_data < ldata || tot_param < lparam) {
409 this_lparam = MIN(lparam-tot_param,cli->max_xmit - 500); /* hack */
410 this_ldata = MIN(ldata-tot_data,cli->max_xmit - (500+this_lparam));
411
412 set_message(cli->outbuf,18,0,True);
413 SCVAL(cli->outbuf,smb_com,SMBnttranss);
414
415 /* XXX - these should probably be aligned */
416 outparam = smb_buf(cli->outbuf);
417 outdata = outparam+this_lparam;
418
419 /* secondary request */
420 SIVAL(cli->outbuf,smb_nts_TotalParameterCount,lparam);
421 SIVAL(cli->outbuf,smb_nts_TotalDataCount,ldata);
422 SIVAL(cli->outbuf,smb_nts_ParameterCount,this_lparam);
423 SIVAL(cli->outbuf,smb_nts_ParameterOffset,smb_offset(outparam,cli->outbuf));
424 SIVAL(cli->outbuf,smb_nts_ParameterDisplacement,tot_param);
425 SIVAL(cli->outbuf,smb_nts_DataCount,this_ldata);
426 SIVAL(cli->outbuf,smb_nts_DataOffset,smb_offset(outdata,cli->outbuf));
427 SIVAL(cli->outbuf,smb_nts_DataDisplacement,tot_data);
428 if (this_lparam) /* param[] */
429 memcpy(outparam,param+tot_param,this_lparam);
430 if (this_ldata) /* data[] */
431 memcpy(outdata,data+tot_data,this_ldata);
432 cli_setup_bcc(cli, outdata+this_ldata);
433
434 /*
435 * Save the mid we're using. We need this for finding
436 * signing replies.
437 */
438 mid = cli->mid;
439
440 show_msg(cli->outbuf);
441
442 if (!cli_send_smb(cli)) {
443 client_set_trans_sign_state_off(cli, mid);
444 return False;
445 }
446
447 /* Ensure we use the same mid for the secondaries. */
448 cli->mid = mid;
449
450 tot_data += this_ldata;
451 tot_param += this_lparam;
452 }
453 }
454
455 return(True);
456 }
457
458 /****************************************************************************
459 Receive a SMB nttrans response allocating the necessary memory.
460 ****************************************************************************/
461
462 BOOL cli_receive_nt_trans(struct cli_state *cli,
463 char **param, unsigned int *param_len,
464 char **data, unsigned int *data_len)
465 {
466 unsigned int total_data=0;
467 unsigned int total_param=0;
468 unsigned int this_data,this_param;
469 uint8 eclass;
470 uint32 ecode;
471 BOOL ret = False;
472
473 *data_len = *param_len = 0;
474
475 if (!cli_receive_smb(cli)) {
476 return False;
477 }
478
479 show_msg(cli->inbuf);
480
481 /* sanity check */
482 if (CVAL(cli->inbuf,smb_com) != SMBnttrans) {
483 DEBUG(0,("Expected SMBnttrans response, got command 0x%02x\n",
484 CVAL(cli->inbuf,smb_com)));
485 return(False);
486 }
487
488 /*
489 * An NT RPC pipe call can return ERRDOS, ERRmoredata
490 * to a trans call. This is not an error and should not
491 * be treated as such.
492 */
493 if (cli_is_dos_error(cli)) {
494 cli_dos_error(cli, &eclass, &ecode);
495 if (!(eclass == ERRDOS && ecode == ERRmoredata)) {
496 goto out;
497 }
498 }
499
500 /*
501 * Likewise for NT_STATUS_BUFFER_TOO_SMALL
502 */
503 if (cli_is_nt_error(cli)) {
504 if (!NT_STATUS_EQUAL(cli_nt_error(cli),
505 NT_STATUS_BUFFER_TOO_SMALL)) {
506 goto out;
507 }
508 }
509
510 /* parse out the lengths */
511 total_data = SVAL(cli->inbuf,smb_ntr_TotalDataCount);
512 total_param = SVAL(cli->inbuf,smb_ntr_TotalParameterCount);
513
514 /* allocate it */
515 if (total_data) {
516 *data = (char *)SMB_REALLOC(*data,total_data);
517 if (!(*data)) {
518 DEBUG(0,("cli_receive_nt_trans: failed to enlarge data buffer to %d\n",total_data));
519 goto out;
520 }
521 }
522
523 if (total_param) {
524 *param = (char *)SMB_REALLOC(*param,total_param);
525 if (!(*param)) {
526 DEBUG(0,("cli_receive_nt_trans: failed to enlarge param buffer to %d\n", total_param));
527 goto out;
528 }
529 }
530
531 while (1) {
532 this_data = SVAL(cli->inbuf,smb_ntr_DataCount);
533 this_param = SVAL(cli->inbuf,smb_ntr_ParameterCount);
534
535 if (this_data + *data_len > total_data ||
536 this_param + *param_len > total_param) {
537 DEBUG(1,("Data overflow in cli_receive_nt_trans\n"));
538 goto out;
539 }
540
541 if (this_data + *data_len < this_data ||
542 this_data + *data_len < *data_len ||
543 this_param + *param_len < this_param ||
544 this_param + *param_len < *param_len) {
545 DEBUG(1,("Data overflow in cli_receive_nt_trans\n"));
546 goto out;
547 }
548
549 if (this_data) {
550 unsigned int data_offset_out = SVAL(cli->inbuf,smb_ntr_DataDisplacement);
551 unsigned int data_offset_in = SVAL(cli->inbuf,smb_ntr_DataOffset);
552
553 if (data_offset_out > total_data ||
554 data_offset_out + this_data > total_data ||
555 data_offset_out + this_data < data_offset_out ||
556 data_offset_out + this_data < this_data) {
557 DEBUG(1,("Data overflow in cli_receive_nt_trans\n"));
558 goto out;
559 }
560 if (data_offset_in > cli->bufsize ||
561 data_offset_in + this_data > cli->bufsize ||
562 data_offset_in + this_data < data_offset_in ||
563 data_offset_in + this_data < this_data) {
564 DEBUG(1,("Data overflow in cli_receive_nt_trans\n"));
565 goto out;
566 }
567
568 memcpy(*data + data_offset_out, smb_base(cli->inbuf) + data_offset_in, this_data);
569 }
570
571 if (this_param) {
572 unsigned int param_offset_out = SVAL(cli->inbuf,smb_ntr_ParameterDisplacement);
573 unsigned int param_offset_in = SVAL(cli->inbuf,smb_ntr_ParameterOffset);
574
575 if (param_offset_out > total_param ||
576 param_offset_out + this_param > total_param ||
577 param_offset_out + this_param < param_offset_out ||
578 param_offset_out + this_param < this_param) {
579 DEBUG(1,("Param overflow in cli_receive_nt_trans\n"));
580 goto out;
581 }
582 if (param_offset_in > cli->bufsize ||
583 param_offset_in + this_param > cli->bufsize ||
584 param_offset_in + this_param < param_offset_in ||
585 param_offset_in + this_param < this_param) {
586 DEBUG(1,("Param overflow in cli_receive_nt_trans\n"));
587 goto out;
588 }
589
590 memcpy(*param + param_offset_out, smb_base(cli->inbuf) + param_offset_in, this_param);
591 }
592
593 *data_len += this_data;
594 *param_len += this_param;
595
596 if (total_data <= *data_len && total_param <= *param_len) {
597 ret = True;
598 break;
599 }
600
601 if (!cli_receive_smb(cli)) {
602 goto out;
603 }
604
605 show_msg(cli->inbuf);
606
607 /* sanity check */
608 if (CVAL(cli->inbuf,smb_com) != SMBnttrans) {
609 DEBUG(0,("Expected SMBnttrans response, got command 0x%02x\n",
610 CVAL(cli->inbuf,smb_com)));
611 goto out;
612 }
613 if (cli_is_dos_error(cli)) {
614 cli_dos_error(cli, &eclass, &ecode);
615 if(!(eclass == ERRDOS && ecode == ERRmoredata)) {
616 goto out;
617 }
618 }
619 /*
620 * Likewise for NT_STATUS_BUFFER_TOO_SMALL
621 */
622 if (cli_is_nt_error(cli)) {
623 if (!NT_STATUS_EQUAL(cli_nt_error(cli),
624 NT_STATUS_BUFFER_TOO_SMALL)) {
625 goto out;
626 }
627 }
628
629 /* parse out the total lengths again - they can shrink! */
630 if (SVAL(cli->inbuf,smb_ntr_TotalDataCount) < total_data)
631 total_data = SVAL(cli->inbuf,smb_ntr_TotalDataCount);
632 if (SVAL(cli->inbuf,smb_ntr_TotalParameterCount) < total_param)
633 total_param = SVAL(cli->inbuf,smb_ntr_TotalParameterCount);
634
635 if (total_data <= *data_len && total_param <= *param_len) {
636 ret = True;
637 break;
638 }
639 }
640
641 out:
642
643 client_set_trans_sign_state_off(cli, SVAL(cli->inbuf,smb_mid));
644 return ret;
645 }
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