source/smb_server/smb/nttrans.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    NT transaction handling
   4    Copyright (C) Andrew Tridgell 2003
   5    Copyright (C) James J Myers 2003 <myersjj@samba.org>
   6
   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.
  11
  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.
  16
  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.
  20 */
  21 /*
  22    This file handles the parsing of transact2 requests
  23 */
  24
  25 #include "includes.h"
  26 #include "smb_server/smb_server.h"
  27 #include "ntvfs/ntvfs.h"
  28 #include "libcli/raw/libcliraw.h"
  29 #include "librpc/gen_ndr/ndr_security.h"
  30
  31 /*
  32   hold the state of a nttrans op while in progress. Needed to allow for async backend
  33   functions.
  34 */
  35 struct nttrans_op {
  36         struct smb_nttrans *trans;
  37         NTSTATUS (*send_fn)(struct nttrans_op *);
  38         void *op_info;
  39 };
  40
  41
  42 /* setup a nttrans reply, given the data and params sizes */
  43 static NTSTATUS nttrans_setup_reply(struct nttrans_op *op,
  44                                     struct smb_nttrans *trans,
  45                                     uint32_t param_size, uint32_t data_size,
  46                                     uint8_t setup_count)
  47 {
  48         trans->out.setup_count = setup_count;
  49         if (setup_count != 0) {
  50                 trans->out.setup = talloc_zero_array(op, uint16_t, setup_count);
  51                 NT_STATUS_HAVE_NO_MEMORY(trans->out.setup);
  52         }
  53         trans->out.params = data_blob_talloc(op, NULL, param_size);
  54         if (param_size != 0) {
  55                 NT_STATUS_HAVE_NO_MEMORY(trans->out.params.data);
  56         }
  57         trans->out.data = data_blob_talloc(op, NULL, data_size);
  58         if (data_size != 0) {
  59                 NT_STATUS_HAVE_NO_MEMORY(trans->out.data.data);
  60         }
  61         return NT_STATUS_OK;
  62 }
  63
  64 /*
  65   send a nttrans create reply
  66 */
  67 static NTSTATUS nttrans_create_send(struct nttrans_op *op)
  68 {
  69         union smb_open *io = talloc_get_type(op->op_info, union smb_open);
  70         uint8_t *params;
  71         NTSTATUS status;
  72
  73         status = nttrans_setup_reply(op, op->trans, 69, 0, 0);
  74         NT_STATUS_NOT_OK_RETURN(status);
  75         params = op->trans->out.params.data;
  76
  77         SSVAL(params,        0, io->ntcreatex.out.oplock_level);
  78         SSVAL(params,        2, io->ntcreatex.out.file.fnum);
  79         SIVAL(params,        4, io->ntcreatex.out.create_action);
  80         SIVAL(params,        8, 0); /* ea error offset */
  81         push_nttime(params, 12, io->ntcreatex.out.create_time);
  82         push_nttime(params, 20, io->ntcreatex.out.access_time);
  83         push_nttime(params, 28, io->ntcreatex.out.write_time);
  84         push_nttime(params, 36, io->ntcreatex.out.change_time);
  85         SIVAL(params,       44, io->ntcreatex.out.attrib);
  86         SBVAL(params,       48, io->ntcreatex.out.alloc_size);
  87         SBVAL(params,       56, io->ntcreatex.out.size);
  88         SSVAL(params,       64, io->ntcreatex.out.file_type);
  89         SSVAL(params,       66, io->ntcreatex.out.ipc_state);
  90         SCVAL(params,       68, io->ntcreatex.out.is_directory);
  91
  92         return NT_STATUS_OK;
  93 }
  94
  95 /*
  96    parse NTTRANS_CREATE request
  97  */
  98 static NTSTATUS nttrans_create(struct smbsrv_request *req,
  99                                struct nttrans_op *op)
 100 {
 101         struct smb_nttrans *trans = op->trans;
 102         union smb_open *io;
 103         uint16_t fname_len;
 104         uint32_t sd_length, ea_length;
 105         NTSTATUS status;
 106         uint8_t *params;
 107
 108         if (trans->in.params.length < 54) {
 109                 return NT_STATUS_INVALID_PARAMETER;
 110         }
 111
 112         /* parse the request */
 113         io = talloc(op, union smb_open);
 114         NT_STATUS_HAVE_NO_MEMORY(io);
 115
 116         io->ntcreatex.level = RAW_OPEN_NTTRANS_CREATE;
 117
 118         params = trans->in.params.data;
 119
 120         io->ntcreatex.in.flags            = IVAL(params,  0);
 121         io->ntcreatex.in.root_fid         = IVAL(params,  4);
 122         io->ntcreatex.in.access_mask      = IVAL(params,  8);
 123         io->ntcreatex.in.alloc_size       = BVAL(params, 12);
 124         io->ntcreatex.in.file_attr        = IVAL(params, 20);
 125         io->ntcreatex.in.share_access     = IVAL(params, 24);
 126         io->ntcreatex.in.open_disposition = IVAL(params, 28);
 127         io->ntcreatex.in.create_options   = IVAL(params, 32);
 128         sd_length                         = IVAL(params, 36);
 129         ea_length                         = IVAL(params, 40);
 130         fname_len                         = IVAL(params, 44);
 131         io->ntcreatex.in.impersonation    = IVAL(params, 48);
 132         io->ntcreatex.in.security_flags   = CVAL(params, 52);
 133         io->ntcreatex.in.sec_desc         = NULL;
 134         io->ntcreatex.in.ea_list          = NULL;
 135
 136         req_pull_string(req, &io->ntcreatex.in.fname,
 137                         params + 53,
 138                         MIN(fname_len+1, trans->in.params.length - 53),
 139                         STR_NO_RANGE_CHECK | STR_TERMINATE);
 140         if (!io->ntcreatex.in.fname) {
 141                 return NT_STATUS_INVALID_PARAMETER;
 142         }
 143
 144         if (sd_length > trans->in.data.length ||
 145             ea_length > trans->in.data.length ||
 146             (sd_length+ea_length) > trans->in.data.length) {
 147                 return NT_STATUS_INVALID_PARAMETER;
 148         }
 149
 150         /* this call has an optional security descriptor */
 151         if (sd_length != 0) {
 152                 DATA_BLOB blob;
 153                 blob.data = trans->in.data.data;
 154                 blob.length = sd_length;
 155                 io->ntcreatex.in.sec_desc = talloc(io, struct security_descriptor);
 156                 if (io->ntcreatex.in.sec_desc == NULL) {
 157                         return NT_STATUS_NO_MEMORY;
 158                 }
 159                 status = ndr_pull_struct_blob(&blob, io,
 160                                               io->ntcreatex.in.sec_desc,
 161                                               (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
 162                 if (!NT_STATUS_IS_OK(status)) {
 163                         return status;
 164                 }
 165         }
 166
 167         /* and an optional ea_list */
 168         if (ea_length > 4) {
 169                 DATA_BLOB blob;
 170                 blob.data = trans->in.data.data + sd_length;
 171                 blob.length = ea_length;
 172                 io->ntcreatex.in.ea_list = talloc(io, struct smb_ea_list);
 173                 if (io->ntcreatex.in.ea_list == NULL) {
 174                         return NT_STATUS_NO_MEMORY;
 175                 }
 176
 177                 status = ea_pull_list_chained(&blob, io,
 178                                               &io->ntcreatex.in.ea_list->num_eas,
 179                                               &io->ntcreatex.in.ea_list->eas);
 180                 if (!NT_STATUS_IS_OK(status)) {
 181                         return status;
 182                 }
 183         }
 184
 185         op->send_fn = nttrans_create_send;
 186         op->op_info = io;
 187
 188         return ntvfs_open(req->ntvfs, io);
 189 }
 190
 191
 192 /*
 193    send NTTRANS_QUERY_SEC_DESC reply
 194  */
 195 static NTSTATUS nttrans_query_sec_desc_send(struct nttrans_op *op)
 196 {
 197         union smb_fileinfo *io = talloc_get_type(op->op_info, union smb_fileinfo);
 198         uint8_t *params;
 199         NTSTATUS status;
 200
 201         status = nttrans_setup_reply(op, op->trans, 4, 0, 0);
 202         NT_STATUS_NOT_OK_RETURN(status);
 203         params = op->trans->out.params.data;
 204
 205         status = ndr_push_struct_blob(&op->trans->out.data, op,
 206                                       io->query_secdesc.out.sd,
 207                                       (ndr_push_flags_fn_t)ndr_push_security_descriptor);
 208         NT_STATUS_NOT_OK_RETURN(status);
 209
 210         SIVAL(params, 0, op->trans->out.data.length);
 211
 212         return NT_STATUS_OK;
 213 }
 214
 215 /*
 216    parse NTTRANS_QUERY_SEC_DESC request
 217  */
 218 static NTSTATUS nttrans_query_sec_desc(struct smbsrv_request *req,
 219                                        struct nttrans_op *op)
 220 {
 221         struct smb_nttrans *trans = op->trans;
 222         union smb_fileinfo *io;
 223
 224         if (trans->in.params.length < 8) {
 225                 return NT_STATUS_INVALID_PARAMETER;
 226         }
 227
 228         /* parse the request */
 229         io = talloc(op, union smb_fileinfo);
 230         NT_STATUS_HAVE_NO_MEMORY(io);
 231
 232         io->query_secdesc.level            = RAW_FILEINFO_SEC_DESC;
 233         io->query_secdesc.in.file.fnum     = SVAL(trans->in.params.data, 0);
 234         io->query_secdesc.in.secinfo_flags = IVAL(trans->in.params.data, 4);
 235
 236         op->op_info = io;
 237         op->send_fn = nttrans_query_sec_desc_send;
 238
 239         return ntvfs_qfileinfo(req->ntvfs, io);
 240 }
 241
 242
 243 /*
 244    parse NTTRANS_SET_SEC_DESC request
 245  */
 246 static NTSTATUS nttrans_set_sec_desc(struct smbsrv_request *req,
 247                                      struct nttrans_op *op)
 248 {
 249         struct smb_nttrans *trans = op->trans;
 250         union smb_setfileinfo *io;
 251         NTSTATUS status;
 252
 253         if (trans->in.params.length < 8) {
 254                 return NT_STATUS_INVALID_PARAMETER;
 255         }
 256
 257         /* parse the request */
 258         io = talloc(req, union smb_setfileinfo);
 259         NT_STATUS_HAVE_NO_MEMORY(io);
 260
 261         io->set_secdesc.level            = RAW_SFILEINFO_SEC_DESC;
 262         io->set_secdesc.in.file.fnum     = SVAL(trans->in.params.data, 0);
 263         io->set_secdesc.in.secinfo_flags = IVAL(trans->in.params.data, 4);
 264
 265         io->set_secdesc.in.sd = talloc(io, struct security_descriptor);
 266         NT_STATUS_HAVE_NO_MEMORY(io->set_secdesc.in.sd);
 267
 268         status = ndr_pull_struct_blob(&trans->in.data, req,
 269                                       io->set_secdesc.in.sd,
 270                                       (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
 271         NT_STATUS_NOT_OK_RETURN(status);
 272
 273         return ntvfs_setfileinfo(req->ntvfs, io);
 274 }
 275
 276
 277 /* parse NTTRANS_RENAME request
 278  */
 279 static NTSTATUS nttrans_rename(struct smbsrv_request *req,
 280                                struct nttrans_op *op)
 281 {
 282         return NT_STATUS_NOT_IMPLEMENTED;
 283 }
 284
 285 /*
 286    parse NTTRANS_IOCTL request
 287  */
 288 static NTSTATUS nttrans_ioctl(struct smbsrv_request *req,
 289                               struct nttrans_op *op)
 290 {
 291         struct smb_nttrans *trans = op->trans;
 292         union smb_ioctl *nt;
 293         uint32_t function;
 294         uint16_t fnum;
 295         uint8_t filter;
 296         BOOL fsctl;
 297         NTSTATUS status;
 298
 299         /* should have at least 4 setup words */
 300         if (trans->in.setup_count != 4) {
 301                 return NT_STATUS_INVALID_PARAMETER;
 302         }
 303
 304         nt = talloc(op, union smb_ioctl);
 305         NT_STATUS_HAVE_NO_MEMORY(nt);
 306
 307         function  = IVAL(trans->in.setup, 0);
 308         fnum  = SVAL(trans->in.setup, 4);
 309         fsctl = CVAL(trans->in.setup, 6);
 310         filter = CVAL(trans->in.setup, 7);
 311
 312         nt->ntioctl.level = RAW_IOCTL_NTIOCTL;
 313         nt->ntioctl.in.file.fnum = fnum;
 314         nt->ntioctl.in.function = function;
 315         nt->ntioctl.in.fsctl = fsctl;
 316         nt->ntioctl.in.filter = filter;
 317         nt->ntioctl.in.max_data = trans->in.max_data;
 318         nt->ntioctl.in.blob = trans->in.data;
 319
 320         status = nttrans_setup_reply(op, trans, 0, 0, 1);
 321         NT_STATUS_NOT_OK_RETURN(status);
 322
 323         trans->out.setup[0] = 0;
 324
 325         return ntvfs_ioctl(req->ntvfs, nt);
 326 }
 327
 328
 329 /*
 330    send NTTRANS_NOTIFY_CHANGE reply
 331  */
 332 static NTSTATUS nttrans_notify_change_send(struct nttrans_op *op)
 333 {
 334         struct smb_notify *info = talloc_get_type(op->op_info, struct smb_notify);
 335         size_t size = 0;
 336         int i;
 337         NTSTATUS status;
 338         uint8_t *p;
 339 #define MAX_BYTES_PER_CHAR 3
 340
 341         /* work out how big the reply buffer could be */
 342         for (i=0;i<info->out.num_changes;i++) {
 343                 size += 12 + 3 + (1+strlen(info->out.changes[i].name.s)) * MAX_BYTES_PER_CHAR;
 344         }
 345
 346         status = nttrans_setup_reply(op, op->trans, size, 0, 0);
 347         NT_STATUS_NOT_OK_RETURN(status);
 348         p = op->trans->out.params.data;
 349
 350         /* construct the changes buffer */
 351         for (i=0;i<info->out.num_changes;i++) {
 352                 uint32_t ofs;
 353                 ssize_t len;
 354
 355                 SIVAL(p, 4, info->out.changes[i].action);
 356                 len = push_string(p + 12, info->out.changes[i].name.s,
 357                                   op->trans->out.params.length -
 358                                   (p+12 - op->trans->out.params.data), STR_UNICODE);
 359                 SIVAL(p, 8, len);
 360
 361                 ofs = len + 12;
 362
 363                 if (ofs & 3) {
 364                         int pad = 4 - (ofs & 3);
 365                         memset(p+ofs, 0, pad);
 366                         ofs += pad;
 367                 }
 368
 369                 if (i == info->out.num_changes-1) {
 370                         SIVAL(p, 0, 0);
 371                 } else {
 372                         SIVAL(p, 0, ofs);
 373                 }
 374
 375                 p += ofs;
 376         }
 377
 378         op->trans->out.params.length = p - op->trans->out.params.data;
 379
 380         return NT_STATUS_OK;
 381 }
 382
 383 /*
 384    parse NTTRANS_NOTIFY_CHANGE request
 385  */
 386 static NTSTATUS nttrans_notify_change(struct smbsrv_request *req,
 387                                       struct nttrans_op *op)
 388 {
 389         struct smb_nttrans *trans = op->trans;
 390         struct smb_notify *info;
 391
 392         /* should have at least 4 setup words */
 393         if (trans->in.setup_count != 4) {
 394                 return NT_STATUS_INVALID_PARAMETER;
 395         }
 396
 397         info = talloc(op, struct smb_notify);
 398         NT_STATUS_HAVE_NO_MEMORY(info);
 399
 400         info->in.completion_filter = IVAL(trans->in.setup, 0);
 401         info->in.file.fnum         = SVAL(trans->in.setup, 4);
 402         info->in.recursive         = SVAL(trans->in.setup, 6);
 403         info->in.buffer_size       = trans->in.max_param;
 404
 405         op->op_info = info;
 406         op->send_fn = nttrans_notify_change_send;
 407
 408         return ntvfs_notify(req->ntvfs, info);
 409 }
 410
 411 /*
 412   backend for nttrans requests
 413 */
 414 static NTSTATUS nttrans_backend(struct smbsrv_request *req,
 415                                 struct nttrans_op *op)
 416 {
 417         /* the nttrans command is in function */
 418         switch (op->trans->in.function) {
 419         case NT_TRANSACT_CREATE:
 420                 return nttrans_create(req, op);
 421         case NT_TRANSACT_IOCTL:
 422                 return nttrans_ioctl(req, op);
 423         case NT_TRANSACT_RENAME:
 424                 return nttrans_rename(req, op);
 425         case NT_TRANSACT_QUERY_SECURITY_DESC:
 426                 return nttrans_query_sec_desc(req, op);
 427         case NT_TRANSACT_SET_SECURITY_DESC:
 428                 return nttrans_set_sec_desc(req, op);
 429         case NT_TRANSACT_NOTIFY_CHANGE:
 430                 return nttrans_notify_change(req, op);
 431         }
 432
 433         /* an unknown nttrans command */
 434         return NT_STATUS_DOS(ERRSRV, ERRerror);
 435 }
 436
 437
 438 static void reply_nttrans_send(struct ntvfs_request *ntvfs)
 439 {
 440         struct smbsrv_request *req;
 441         uint16_t params_left, data_left;
 442         uint8_t *params, *data;
 443         struct smb_nttrans *trans;
 444         struct nttrans_op *op;
 445
 446         SMBSRV_CHECK_ASYNC_STATUS(op, struct nttrans_op);
 447
 448         trans = op->trans;
 449
 450         /* if this function needs work to form the nttrans reply buffer, then
 451            call that now */
 452         if (op->send_fn != NULL) {
 453                 NTSTATUS status;
 454                 status = op->send_fn(op);
 455                 if (!NT_STATUS_IS_OK(status)) {
 456                         smbsrv_send_error(req, status);
 457                         return;
 458                 }
 459         }
 460
 461         smbsrv_setup_reply(req, 18 + trans->out.setup_count, 0);
 462
 463         /* note that we don't check the max_setup count (matching w2k3
 464            behaviour) */
 465
 466         if (trans->out.params.length > trans->in.max_param) {
 467                 smbsrv_setup_error(req, NT_STATUS_BUFFER_TOO_SMALL);
 468                 trans->out.params.length = trans->in.max_param;
 469         }
 470         if (trans->out.data.length > trans->in.max_data) {
 471                 smbsrv_setup_error(req, NT_STATUS_BUFFER_TOO_SMALL);
 472                 trans->out.data.length = trans->in.max_data;
 473         }
 474
 475         params_left = trans->out.params.length;
 476         data_left   = trans->out.data.length;
 477         params      = trans->out.params.data;
 478         data        = trans->out.data.data;
 479
 480         /* we need to divide up the reply into chunks that fit into
 481            the negotiated buffer size */
 482         do {
 483                 uint16_t this_data, this_param, max_bytes;
 484                 uint_t align1 = 1, align2 = (params_left ? 2 : 0);
 485                 struct smbsrv_request *this_req;
 486                 int i;
 487
 488                 max_bytes = req_max_data(req) - (align1 + align2);
 489
 490                 this_param = params_left;
 491                 if (this_param > max_bytes) {
 492                         this_param = max_bytes;
 493                 }
 494                 max_bytes -= this_param;
 495
 496                 this_data = data_left;
 497                 if (this_data > max_bytes) {
 498                         this_data = max_bytes;
 499                 }
 500
 501                 /* don't destroy unless this is the last chunk */
 502                 if (params_left - this_param != 0 ||
 503                     data_left - this_data != 0) {
 504                         this_req = smbsrv_setup_secondary_request(req);
 505                 } else {
 506                         this_req = req;
 507                 }
 508
 509                 req_grow_data(req, this_param + this_data + (align1 + align2));
 510
 511                 SSVAL(this_req->out.vwv, 0, 0); /* reserved */
 512                 SCVAL(this_req->out.vwv, 2, 0); /* reserved */
 513                 SIVAL(this_req->out.vwv, 3, trans->out.params.length);
 514                 SIVAL(this_req->out.vwv, 7, trans->out.data.length);
 515
 516                 SIVAL(this_req->out.vwv, 11, this_param);
 517                 SIVAL(this_req->out.vwv, 15, align1 + PTR_DIFF(this_req->out.data, this_req->out.hdr));
 518                 SIVAL(this_req->out.vwv, 19, PTR_DIFF(params, trans->out.params.data));
 519
 520                 SIVAL(this_req->out.vwv, 23, this_data);
 521                 SIVAL(this_req->out.vwv, 27, align1 + align2 +
 522                       PTR_DIFF(this_req->out.data + this_param, this_req->out.hdr));
 523                 SIVAL(this_req->out.vwv, 31, PTR_DIFF(data, trans->out.data.data));
 524
 525                 SCVAL(this_req->out.vwv, 35, trans->out.setup_count);
 526                 for (i=0;i<trans->out.setup_count;i++) {
 527                         SSVAL(this_req->out.vwv, VWV(18+i), trans->out.setup[i]);
 528                 }
 529
 530                 memset(this_req->out.data, 0, align1);
 531                 if (this_param != 0) {
 532                         memcpy(this_req->out.data + align1, params, this_param);
 533                 }
 534                 memset(this_req->out.data+this_param+align1, 0, align2);
 535                 if (this_data != 0) {
 536                         memcpy(this_req->out.data+this_param+align1+align2,
 537                                data, this_data);
 538                 }
 539
 540                 params_left -= this_param;
 541                 data_left -= this_data;
 542                 params += this_param;
 543                 data += this_data;
 544
 545                 smbsrv_send_reply(this_req);
 546         } while (params_left != 0 || data_left != 0);
 547 }
 548
 549
 550 /****************************************************************************
 551  Reply to an SMBnttrans request
 552 ****************************************************************************/
 553 void smbsrv_reply_nttrans(struct smbsrv_request *req)
 554 {
 555         struct nttrans_op *op;
 556         struct smb_nttrans *trans;
 557         int i;
 558         uint16_t param_ofs, data_ofs;
 559         uint16_t param_count, data_count;
 560         uint16_t param_total, data_total;
 561
 562         /* parse request */
 563         if (req->in.wct < 19) {
 564                 smbsrv_send_error(req, NT_STATUS_FOOBAR);
 565                 return;
 566         }
 567
 568         SMBSRV_TALLOC_IO_PTR(op, struct nttrans_op);
 569         SMBSRV_SETUP_NTVFS_REQUEST(reply_nttrans_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
 570
 571         trans = talloc(op, struct smb_nttrans);
 572         if (trans == NULL) {
 573                 smbsrv_send_error(req, NT_STATUS_NO_MEMORY);
 574                 return;
 575         }
 576
 577         op->trans = trans;
 578         op->op_info = NULL;
 579         op->send_fn = NULL;
 580
 581         trans->in.max_setup  = CVAL(req->in.vwv, 0);
 582         param_total          = IVAL(req->in.vwv, 3);
 583         data_total           = IVAL(req->in.vwv, 7);
 584         trans->in.max_param  = IVAL(req->in.vwv, 11);
 585         trans->in.max_data   = IVAL(req->in.vwv, 15);
 586         param_count          = IVAL(req->in.vwv, 19);
 587         param_ofs            = IVAL(req->in.vwv, 23);
 588         data_count           = IVAL(req->in.vwv, 27);
 589         data_ofs             = IVAL(req->in.vwv, 31);
 590         trans->in.setup_count= CVAL(req->in.vwv, 35);
 591         trans->in.function   = SVAL(req->in.vwv, 36);
 592
 593         if (req->in.wct != 19 + trans->in.setup_count) {
 594                 smbsrv_send_error(req, NT_STATUS_DOS(ERRSRV, ERRerror));
 595                 return;
 596         }
 597
 598         /* parse out the setup words */
 599         trans->in.setup = talloc_array(req, uint16_t, trans->in.setup_count);
 600         if (!trans->in.setup) {
 601                 smbsrv_send_error(req, NT_STATUS_NO_MEMORY);
 602                 return;
 603         }
 604         for (i=0;i<trans->in.setup_count;i++) {
 605                 trans->in.setup[i] = SVAL(req->in.vwv, VWV(19+i));
 606         }
 607
 608         if (!req_pull_blob(req, req->in.hdr + param_ofs, param_count, &trans->in.params) ||
 609             !req_pull_blob(req, req->in.hdr + data_ofs, data_count, &trans->in.data)) {
 610                 smbsrv_send_error(req, NT_STATUS_FOOBAR);
 611                 return;
 612         }
 613
 614         /* is it a partial request? if so, then send a 'send more' message */
 615         if (param_total > param_count ||
 616             data_total > data_count) {
 617                 DEBUG(0,("REWRITE: not handling partial nttrans requests!\n"));
 618                 smbsrv_send_error(req, NT_STATUS_FOOBAR);
 619                 return;
 620         }
 621
 622         ZERO_STRUCT(trans->out);
 623         SMBSRV_CALL_NTVFS_BACKEND(nttrans_backend(req, op));
 624 }
 625
 626
 627 /****************************************************************************
 628  Reply to an SMBnttranss request
 629 ****************************************************************************/
 630 void smbsrv_reply_nttranss(struct smbsrv_request *req)
 631 {
 632         smbsrv_send_error(req, NT_STATUS_FOOBAR);
 633 }