source4/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
  30 /*
  31   hold the state of a nttrans op while in progress. Needed to allow for async backend
  32   functions.
  33 */
  34 struct nttrans_op {
  35         struct smb_nttrans *trans;
  36         NTSTATUS (*send_fn)(struct nttrans_op *);
  37         void *op_info;
  38 };
  39
  40
  41 /* setup a nttrans reply, given the data and params sizes */
  42 static NTSTATUS nttrans_setup_reply(struct nttrans_op *op,
  43                                     struct smb_nttrans *trans,
  44                                     uint16_t param_size, uint16_t data_size,
  45                                     uint16_t setup_count)
  46 {
  47         trans->out.setup_count = setup_count;
  48         if (setup_count != 0) {
  49                 trans->out.setup = talloc_zero_array(op, uint16_t, setup_count);
  50                 NT_STATUS_HAVE_NO_MEMORY(trans->out.setup);
  51         }
  52         trans->out.params = data_blob_talloc(op, NULL, param_size);
  53         if (param_size != 0) {
  54                 NT_STATUS_HAVE_NO_MEMORY(trans->out.params.data);
  55         }
  56         trans->out.data = data_blob_talloc(op, NULL, data_size);
  57         if (data_size != 0) {
  58                 NT_STATUS_HAVE_NO_MEMORY(trans->out.data.data);
  59         }
  60         return NT_STATUS_OK;
  61 }
  62
  63 /*
  64   send a nttrans create reply
  65 */
  66 static NTSTATUS nttrans_create_send(struct nttrans_op *op)
  67 {
  68         union smb_open *io = talloc_get_type(op->op_info, union smb_open);
  69         uint8_t *params;
  70
  71         op->trans->out.setup_count = 0;
  72         op->trans->out.setup       = NULL;
  73         op->trans->out.params      = data_blob_talloc(op, NULL, 69);
  74         op->trans->out.data        = data_blob(NULL, 0);
  75
  76         params = op->trans->out.params.data;
  77         NT_STATUS_HAVE_NO_MEMORY(params);
  78
  79         SSVAL(params,        0, io->ntcreatex.out.oplock_level);
  80         SSVAL(params,        2, io->ntcreatex.file.fnum);
  81         SIVAL(params,        4, io->ntcreatex.out.create_action);
  82         SIVAL(params,        8, 0); /* ea error offset */
  83         push_nttime(params, 12, io->ntcreatex.out.create_time);
  84         push_nttime(params, 20, io->ntcreatex.out.access_time);
  85         push_nttime(params, 28, io->ntcreatex.out.write_time);
  86         push_nttime(params, 36, io->ntcreatex.out.change_time);
  87         SIVAL(params,       44, io->ntcreatex.out.attrib);
  88         SBVAL(params,       48, io->ntcreatex.out.alloc_size);
  89         SBVAL(params,       56, io->ntcreatex.out.size);
  90         SSVAL(params,       64, io->ntcreatex.out.file_type);
  91         SSVAL(params,       66, io->ntcreatex.out.ipc_state);
  92         SCVAL(params,       68, io->ntcreatex.out.is_directory);
  93
  94         return NT_STATUS_OK;
  95 }
  96
  97 /*
  98    parse NTTRANS_CREATE request
  99  */
 100 static NTSTATUS nttrans_create(struct smbsrv_request *req,
 101                                struct nttrans_op *op)
 102 {
 103         struct smb_nttrans *trans = op->trans;
 104         union smb_open *io;
 105         uint16_t fname_len;
 106         uint32_t sd_length, ea_length;
 107         NTSTATUS status;
 108         uint8_t *params;
 109
 110         if (trans->in.params.length < 54) {
 111                 return NT_STATUS_INVALID_PARAMETER;
 112         }
 113
 114         /* parse the request */
 115         io = talloc(op, union smb_open);
 116         NT_STATUS_HAVE_NO_MEMORY(io);
 117
 118         io->ntcreatex.level = RAW_OPEN_NTTRANS_CREATE;
 119
 120         params = trans->in.params.data;
 121
 122         io->ntcreatex.in.flags            = IVAL(params,  0);
 123         io->ntcreatex.in.root_fid         = IVAL(params,  4);
 124         io->ntcreatex.in.access_mask      = IVAL(params,  8);
 125         io->ntcreatex.in.alloc_size       = BVAL(params, 12);
 126         io->ntcreatex.in.file_attr        = IVAL(params, 20);
 127         io->ntcreatex.in.share_access     = IVAL(params, 24);
 128         io->ntcreatex.in.open_disposition = IVAL(params, 28);
 129         io->ntcreatex.in.create_options   = IVAL(params, 32);
 130         sd_length                         = IVAL(params, 36);
 131         ea_length                         = IVAL(params, 40);
 132         fname_len                         = IVAL(params, 44);
 133         io->ntcreatex.in.impersonation    = IVAL(params, 48);
 134         io->ntcreatex.in.security_flags   = CVAL(params, 52);
 135         io->ntcreatex.in.sec_desc         = NULL;
 136         io->ntcreatex.in.ea_list          = NULL;
 137
 138         req_pull_string(req, &io->ntcreatex.in.fname,
 139                         params + 53,
 140                         MIN(fname_len+1, trans->in.params.length - 53),
 141                         STR_NO_RANGE_CHECK | STR_TERMINATE);
 142         if (!io->ntcreatex.in.fname) {
 143                 return NT_STATUS_INVALID_PARAMETER;
 144         }
 145
 146         if (sd_length > trans->in.data.length ||
 147             ea_length > trans->in.data.length ||
 148             (sd_length+ea_length) > trans->in.data.length) {
 149                 return NT_STATUS_INVALID_PARAMETER;
 150         }
 151
 152         /* this call has an optional security descriptor */
 153         if (sd_length != 0) {
 154                 DATA_BLOB blob;
 155                 blob.data = trans->in.data.data;
 156                 blob.length = sd_length;
 157                 io->ntcreatex.in.sec_desc = talloc(io, struct security_descriptor);
 158                 if (io->ntcreatex.in.sec_desc == NULL) {
 159                         return NT_STATUS_NO_MEMORY;
 160                 }
 161                 status = ndr_pull_struct_blob(&blob, io,
 162                                               io->ntcreatex.in.sec_desc,
 163                                               (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
 164                 if (!NT_STATUS_IS_OK(status)) {
 165                         return status;
 166                 }
 167         }
 168
 169         /* and an optional ea_list */
 170         if (ea_length > 4) {
 171                 DATA_BLOB blob;
 172                 blob.data = trans->in.data.data + sd_length;
 173                 blob.length = ea_length;
 174                 io->ntcreatex.in.ea_list = talloc(io, struct smb_ea_list);
 175                 if (io->ntcreatex.in.ea_list == NULL) {
 176                         return NT_STATUS_NO_MEMORY;
 177                 }
 178
 179                 status = ea_pull_list_chained(&blob, io,
 180                                               &io->ntcreatex.in.ea_list->num_eas,
 181                                               &io->ntcreatex.in.ea_list->eas);
 182                 if (!NT_STATUS_IS_OK(status)) {
 183                         return status;
 184                 }
 185         }
 186
 187         op->send_fn = nttrans_create_send;
 188         op->op_info = io;
 189
 190         return ntvfs_open(req, io);
 191 }
 192
 193
 194 /*
 195    send NTTRANS_QUERY_SEC_DESC reply
 196  */
 197 static NTSTATUS nttrans_query_sec_desc_send(struct nttrans_op *op)
 198 {
 199         struct smb_nttrans *trans = op->trans;
 200         union smb_fileinfo *io = talloc_get_type(op->op_info, union smb_fileinfo);
 201         NTSTATUS status;
 202
 203         trans->out.setup_count = 0;
 204         trans->out.setup       = NULL;
 205         trans->out.params      = data_blob_talloc(op, NULL, 4);
 206         trans->out.data        = data_blob(NULL, 0);
 207         NT_STATUS_HAVE_NO_MEMORY(trans->out.params.data);
 208
 209         status = ndr_push_struct_blob(&trans->out.data, op,
 210                                       io->query_secdesc.out.sd,
 211                                       (ndr_push_flags_fn_t)ndr_push_security_descriptor);
 212         NT_STATUS_NOT_OK_RETURN(status);
 213
 214         SIVAL(trans->out.params.data, 0, trans->out.data.length);
 215
 216         return NT_STATUS_OK;
 217 }
 218
 219 /*
 220    parse NTTRANS_QUERY_SEC_DESC request
 221  */
 222 static NTSTATUS nttrans_query_sec_desc(struct smbsrv_request *req,
 223                                        struct nttrans_op *op)
 224 {
 225         struct smb_nttrans *trans = op->trans;
 226         union smb_fileinfo *io;
 227
 228         if (trans->in.params.length < 8) {
 229                 return NT_STATUS_INVALID_PARAMETER;
 230         }
 231
 232         /* parse the request */
 233         io = talloc(op, union smb_fileinfo);
 234         NT_STATUS_HAVE_NO_MEMORY(io);
 235
 236         io->query_secdesc.level            = RAW_FILEINFO_SEC_DESC;
 237         io->query_secdesc.file.fnum        = SVAL(trans->in.params.data, 0);
 238         io->query_secdesc.in.secinfo_flags = IVAL(trans->in.params.data, 4);
 239
 240         op->op_info = io;
 241         op->send_fn = nttrans_query_sec_desc_send;
 242
 243         return ntvfs_qfileinfo(req, io);
 244 }
 245
 246
 247 /*
 248    parse NTTRANS_SET_SEC_DESC request
 249  */
 250 static NTSTATUS nttrans_set_sec_desc(struct smbsrv_request *req,
 251                                      struct nttrans_op *op)
 252 {
 253         struct smb_nttrans *trans = op->trans;
 254         union smb_setfileinfo *io;
 255         NTSTATUS status;
 256
 257         if (trans->in.params.length < 8) {
 258                 return NT_STATUS_INVALID_PARAMETER;
 259         }
 260
 261         /* parse the request */
 262         io = talloc(req, union smb_setfileinfo);
 263         NT_STATUS_HAVE_NO_MEMORY(io);
 264
 265         io->set_secdesc.level            = RAW_SFILEINFO_SEC_DESC;
 266         io->set_secdesc.file.fnum        = SVAL(trans->in.params.data, 0);
 267         io->set_secdesc.in.secinfo_flags = IVAL(trans->in.params.data, 4);
 268
 269         io->set_secdesc.in.sd = talloc(io, struct security_descriptor);
 270         NT_STATUS_HAVE_NO_MEMORY(io->set_secdesc.in.sd);
 271
 272         status = ndr_pull_struct_blob(&trans->in.data, req,
 273                                       io->set_secdesc.in.sd,
 274                                       (ndr_pull_flags_fn_t)ndr_pull_security_descriptor);
 275         NT_STATUS_NOT_OK_RETURN(status);
 276
 277         trans->out.setup_count = 0;
 278         trans->out.setup       = NULL;
 279         trans->out.params      = data_blob(NULL, 0);
 280         trans->out.data        = data_blob(NULL, 0);
 281
 282         return ntvfs_setfileinfo(req, io);
 283 }
 284
 285
 286 /* parse NTTRANS_RENAME request
 287  */
 288 static NTSTATUS nttrans_rename(struct smbsrv_request *req,
 289                                struct nttrans_op *op)
 290 {
 291         return NT_STATUS_NOT_IMPLEMENTED;
 292 }
 293
 294 /*
 295    parse NTTRANS_IOCTL request
 296  */
 297 static NTSTATUS nttrans_ioctl(struct smbsrv_request *req,
 298                               struct nttrans_op *op)
 299 {
 300         struct smb_nttrans *trans = op->trans;
 301         union smb_ioctl *nt;
 302         uint32_t function;
 303         uint16_t fnum;
 304         uint8_t filter;
 305         BOOL fsctl;
 306         DATA_BLOB *blob;
 307         NTSTATUS status;
 308
 309         /* should have at least 4 setup words */
 310         if (trans->in.setup_count != 4) {
 311                 return NT_STATUS_INVALID_PARAMETER;
 312         }
 313
 314         nt = talloc(op, union smb_ioctl);
 315         NT_STATUS_HAVE_NO_MEMORY(nt);
 316
 317         function  = IVAL(trans->in.setup, 0);
 318         fnum  = SVAL(trans->in.setup, 4);
 319         fsctl = CVAL(trans->in.setup, 6);
 320         filter = CVAL(trans->in.setup, 7);
 321
 322         blob = &trans->in.data;
 323
 324         nt->ntioctl.level = RAW_IOCTL_NTIOCTL;
 325         nt->ntioctl.file.fnum = fnum;
 326         nt->ntioctl.in.function = function;
 327         nt->ntioctl.in.fsctl = fsctl;
 328         nt->ntioctl.in.filter = filter;
 329
 330         status = nttrans_setup_reply(op, trans, 0, 0, 1);
 331         NT_STATUS_NOT_OK_RETURN(status);
 332
 333         trans->out.setup[0] = 0;
 334
 335         return ntvfs_ioctl(req, nt);
 336 }
 337
 338
 339 /*
 340    send NTTRANS_NOTIFY_CHANGE reply
 341  */
 342 static NTSTATUS nttrans_notify_change_send(struct nttrans_op *op)
 343 {
 344         union smb_notify *info = talloc_get_type(op->op_info, union smb_notify);
 345         size_t size = 0;
 346         int i;
 347         NTSTATUS status;
 348         uint32_t ofs=0;
 349         uint8_t *p;
 350 #define MAX_BYTES_PER_CHAR 3
 351
 352         /* work out how big the reply buffer could be */
 353         for (i=0;i<info->notify.out.num_changes;i++) {
 354                 size += 12 + 3 + (1+strlen(info->notify.out.changes[i].name.s)) * MAX_BYTES_PER_CHAR;
 355         }
 356
 357         status = nttrans_setup_reply(op, op->trans, size, 0, 0);
 358         NT_STATUS_NOT_OK_RETURN(status);
 359
 360         p = op->trans->out.params.data;
 361
 362         /* construct the changes buffer */
 363         for (i=0;i<info->notify.out.num_changes;i++) {
 364                 ssize_t len;
 365
 366                 SIVAL(p, 4, info->notify.out.changes[i].action);
 367                 len = push_string(p + 12, info->notify.out.changes[i].name.s,
 368                                   op->trans->out.params.length - (ofs+12), STR_UNICODE);
 369                 SIVAL(p, 8, len);
 370
 371                 ofs += len + 12;
 372
 373                 if (ofs & 3) {
 374                         int pad = 4 - (ofs & 3);
 375                         memset(p+ofs, 0, pad);
 376                         ofs += pad;
 377                 }
 378
 379                 SIVAL(p, 0, ofs);
 380
 381                 p = op->trans->out.params.data + ofs;
 382         }
 383
 384         op->trans->out.params.length = ofs;
 385
 386         return NT_STATUS_OK;
 387 }
 388
 389 /*
 390    parse NTTRANS_NOTIFY_CHANGE request
 391  */
 392 static NTSTATUS nttrans_notify_change(struct smbsrv_request *req,
 393                                       struct nttrans_op *op)
 394 {
 395         struct smb_nttrans *trans = op->trans;
 396         union smb_notify *info;
 397
 398         /* should have at least 4 setup words */
 399         if (trans->in.setup_count != 4) {
 400                 return NT_STATUS_INVALID_PARAMETER;
 401         }
 402
 403         info = talloc(op, union smb_notify);
 404         NT_STATUS_HAVE_NO_MEMORY(info);
 405
 406         info->notify.in.completion_filter = IVAL(trans->in.setup, 0);
 407         info->notify.file.fnum            = SVAL(trans->in.setup, 4);
 408         info->notify.in.recursive         = SVAL(trans->in.setup, 6);
 409         info->notify.in.buffer_size       = trans->in.max_param;
 410
 411         op->op_info = info;
 412         op->send_fn = nttrans_notify_change_send;
 413
 414         return ntvfs_notify(req, info);
 415 }
 416
 417 /*
 418   backend for nttrans requests
 419 */
 420 static NTSTATUS nttrans_backend(struct smbsrv_request *req,
 421                                 struct nttrans_op *op)
 422 {
 423         /* the nttrans command is in function */
 424         switch (op->trans->in.function) {
 425         case NT_TRANSACT_CREATE:
 426                 return nttrans_create(req, op);
 427         case NT_TRANSACT_IOCTL:
 428                 return nttrans_ioctl(req, op);
 429         case NT_TRANSACT_RENAME:
 430                 return nttrans_rename(req, op);
 431         case NT_TRANSACT_QUERY_SECURITY_DESC:
 432                 return nttrans_query_sec_desc(req, op);
 433         case NT_TRANSACT_SET_SECURITY_DESC:
 434                 return nttrans_set_sec_desc(req, op);
 435         case NT_TRANSACT_NOTIFY_CHANGE:
 436                 return nttrans_notify_change(req, op);
 437         }
 438
 439         /* an unknown nttrans command */
 440         return NT_STATUS_DOS(ERRSRV, ERRerror);
 441 }
 442
 443
 444 static void reply_nttrans_send(struct smbsrv_request *req)
 445 {
 446         uint16_t params_left, data_left;
 447         uint8_t *params, *data;
 448         struct smb_nttrans *trans;
 449         struct nttrans_op *op;
 450
 451         if (!NT_STATUS_IS_OK(req->async_states->status)) {
 452                 smbsrv_send_error(req, req->async_states->status);
 453                 return;
 454         }
 455
 456         op = talloc_get_type(req->async_states->private_data, struct nttrans_op);
 457         trans = op->trans;
 458
 459         /* if this function needs work to form the nttrans reply buffer, then
 460            call that now */
 461         if (op->send_fn != NULL) {
 462                 NTSTATUS status;
 463                 status = op->send_fn(op);
 464                 if (!NT_STATUS_IS_OK(status)) {
 465                         smbsrv_send_error(req, status);
 466                         return;
 467                 }
 468         }
 469
 470         /* note that we don't check the max_setup count (matching w2k3
 471            behaviour) */
 472
 473         if (trans->out.params.length > trans->in.max_param) {
 474                 smbsrv_setup_error(req, NT_STATUS_BUFFER_TOO_SMALL);
 475                 trans->out.params.length = trans->in.max_param;
 476         }
 477         if (trans->out.data.length > trans->in.max_data) {
 478                 smbsrv_setup_error(req, NT_STATUS_BUFFER_TOO_SMALL);
 479                 trans->out.data.length = trans->in.max_data;
 480         }
 481
 482         params_left = trans->out.params.length;
 483         data_left   = trans->out.data.length;
 484         params      = trans->out.params.data;
 485         data        = trans->out.data.data;
 486
 487         smbsrv_setup_reply(req, 18 + trans->out.setup_count, 0);
 488
 489         /* we need to divide up the reply into chunks that fit into
 490            the negotiated buffer size */
 491         do {
 492                 uint16_t this_data, this_param, max_bytes;
 493                 uint_t align1 = 1, align2 = (params_left ? 2 : 0);
 494                 struct smbsrv_request *this_req;
 495                 int i;
 496
 497                 max_bytes = req_max_data(req) - (align1 + align2);
 498
 499                 this_param = params_left;
 500                 if (this_param > max_bytes) {
 501                         this_param = max_bytes;
 502                 }
 503                 max_bytes -= this_param;
 504
 505                 this_data = data_left;
 506                 if (this_data > max_bytes) {
 507                         this_data = max_bytes;
 508                 }
 509
 510                 /* don't destroy unless this is the last chunk */
 511                 if (params_left - this_param != 0 ||
 512                     data_left - this_data != 0) {
 513                         this_req = smbsrv_setup_secondary_request(req);
 514                 } else {
 515                         this_req = req;
 516                 }
 517
 518                 req_grow_data(req, this_param + this_data + (align1 + align2));
 519
 520                 SSVAL(this_req->out.vwv, 0, 0); /* reserved */
 521                 SCVAL(this_req->out.vwv, 2, 0); /* reserved */
 522                 SIVAL(this_req->out.vwv, 3, trans->out.params.length);
 523                 SIVAL(this_req->out.vwv, 7, trans->out.data.length);
 524
 525                 SIVAL(this_req->out.vwv, 11, this_param);
 526                 SIVAL(this_req->out.vwv, 15, align1 + PTR_DIFF(this_req->out.data, this_req->out.hdr));
 527                 SIVAL(this_req->out.vwv, 19, PTR_DIFF(params, trans->out.params.data));
 528
 529                 SIVAL(this_req->out.vwv, 23, this_data);
 530                 SIVAL(this_req->out.vwv, 27, align1 + align2 +
 531                       PTR_DIFF(this_req->out.data + this_param, this_req->out.hdr));
 532                 SIVAL(this_req->out.vwv, 31, PTR_DIFF(data, trans->out.data.data));
 533
 534                 SCVAL(this_req->out.vwv, 35, trans->out.setup_count);
 535                 for (i=0;i<trans->out.setup_count;i++) {
 536                         SSVAL(this_req->out.vwv, VWV(18+i), trans->out.setup[i]);
 537                 }
 538
 539                 memset(this_req->out.data, 0, align1);
 540                 if (this_param != 0) {
 541                         memcpy(this_req->out.data + align1, params, this_param);
 542                 }
 543                 memset(this_req->out.data+this_param+align1, 0, align2);
 544                 if (this_data != 0) {
 545                         memcpy(this_req->out.data+this_param+align1+align2,
 546                                data, this_data);
 547                 }
 548
 549                 params_left -= this_param;
 550                 data_left -= this_data;
 551                 params += this_param;
 552                 data += this_data;
 553
 554                 smbsrv_send_reply(this_req);
 555         } while (params_left != 0 || data_left != 0);
 556 }
 557
 558
 559 /****************************************************************************
 560  Reply to an SMBnttrans request
 561 ****************************************************************************/
 562 void smbsrv_reply_nttrans(struct smbsrv_request *req)
 563 {
 564         struct nttrans_op *op;
 565         struct smb_nttrans *trans;
 566         int i;
 567         uint16_t param_ofs, data_ofs;
 568         uint16_t param_count, data_count;
 569         uint16_t param_total, data_total;
 570
 571         /* parse request */
 572         if (req->in.wct < 19) {
 573                 smbsrv_send_error(req, NT_STATUS_FOOBAR);
 574                 return;
 575         }
 576
 577         op = talloc(req, struct nttrans_op);
 578         if (op == NULL) {
 579                 smbsrv_send_error(req, NT_STATUS_NO_MEMORY);
 580                 return;
 581         }
 582
 583         trans = talloc(op, struct smb_nttrans);
 584         if (trans == NULL) {
 585                 smbsrv_send_error(req, NT_STATUS_NO_MEMORY);
 586                 return;
 587         }
 588
 589         op->trans = trans;
 590         op->op_info = NULL;
 591         op->send_fn = NULL;
 592
 593         trans->in.max_setup   = CVAL(req->in.vwv, 0);
 594         param_total          = IVAL(req->in.vwv, 3);
 595         data_total           = IVAL(req->in.vwv, 7);
 596         trans->in.max_param   = IVAL(req->in.vwv, 11);
 597         trans->in.max_data    = IVAL(req->in.vwv, 15);
 598         param_count          = IVAL(req->in.vwv, 19);
 599         param_ofs            = IVAL(req->in.vwv, 23);
 600         data_count           = IVAL(req->in.vwv, 27);
 601         data_ofs             = IVAL(req->in.vwv, 31);
 602         trans->in.setup_count = CVAL(req->in.vwv, 35);
 603         trans->in.function       = SVAL(req->in.vwv, 36);
 604
 605         if (req->in.wct != 19 + trans->in.setup_count) {
 606                 smbsrv_send_error(req, NT_STATUS_DOS(ERRSRV, ERRerror));
 607                 return;
 608         }
 609
 610         /* parse out the setup words */
 611         trans->in.setup = talloc_array(req, uint16_t, trans->in.setup_count);
 612         if (!trans->in.setup) {
 613                 smbsrv_send_error(req, NT_STATUS_NO_MEMORY);
 614                 return;
 615         }
 616         for (i=0;i<trans->in.setup_count;i++) {
 617                 trans->in.setup[i] = SVAL(req->in.vwv, VWV(19+i));
 618         }
 619
 620         if (!req_pull_blob(req, req->in.hdr + param_ofs, param_count, &trans->in.params) ||
 621             !req_pull_blob(req, req->in.hdr + data_ofs, data_count, &trans->in.data)) {
 622                 smbsrv_send_error(req, NT_STATUS_FOOBAR);
 623                 return;
 624         }
 625
 626         /* is it a partial request? if so, then send a 'send more' message */
 627         if (param_total > param_count ||
 628             data_total > data_count) {
 629                 DEBUG(0,("REWRITE: not handling partial nttrans requests!\n"));
 630                 return;
 631         }
 632
 633         req->async_states->state |= NTVFS_ASYNC_STATE_MAY_ASYNC;
 634         req->async_states->send_fn = reply_nttrans_send;
 635         req->async_states->private_data = op;
 636
 637         /* its a full request, give it to the backend */
 638         req->async_states->status = nttrans_backend(req, op);
 639
 640         /* if the backend replied synchronously, then send now */
 641         if (!(req->async_states->state & NTVFS_ASYNC_STATE_ASYNC)) {
 642                 req->async_states->send_fn(req);
 643         }
 644 }
 645
 646
 647 /****************************************************************************
 648  Reply to an SMBnttranss request
 649 ****************************************************************************/
 650 void smbsrv_reply_nttranss(struct smbsrv_request *req)
 651 {
 652         smbsrv_send_error(req, NT_STATUS_FOOBAR);
 653 }