source/smb_server/smb/trans2.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    transaction2 handling
   4    Copyright (C) Andrew Tridgell 2003
   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 3 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, see <http://www.gnu.org/licenses/>.
  18 */
  19 /*
  20    This file handles the parsing of transact2 requests
  21 */
  22
  23 #include "includes.h"
  24 #include "lib/util/dlinklist.h"
  25 #include "smb_server/smb_server.h"
  26 #include "librpc/gen_ndr/ndr_misc.h"
  27 #include "ntvfs/ntvfs.h"
  28 #include "libcli/raw/libcliraw.h"
  29 #include "libcli/raw/raw_proto.h"
  30
  31 #define TRANS2_CHECK_ASYNC_STATUS_SIMPLE do { \
  32         if (!NT_STATUS_IS_OK(req->ntvfs->async_states->status)) { \
  33                 trans2_setup_reply(trans, 0, 0, 0);\
  34                 return req->ntvfs->async_states->status; \
  35         } \
  36 } while (0)
  37 #define TRANS2_CHECK_ASYNC_STATUS(ptr, type) do { \
  38         TRANS2_CHECK_ASYNC_STATUS_SIMPLE; \
  39         ptr = talloc_get_type(op->op_info, type); \
  40 } while (0)
  41 #define TRANS2_CHECK(cmd) do { \
  42         NTSTATUS _status; \
  43         _status = cmd; \
  44         NT_STATUS_NOT_OK_RETURN(_status); \
  45 } while (0)
  46
  47 /*
  48   hold the state of a nttrans op while in progress. Needed to allow for async backend
  49   functions.
  50 */
  51 struct trans_op {
  52         struct smbsrv_request *req;
  53         struct smb_trans2 *trans;
  54         uint8_t command;
  55         NTSTATUS (*send_fn)(struct trans_op *);
  56         void *op_info;
  57 };
  58
  59 #define CHECK_MIN_BLOB_SIZE(blob, size) do { \
  60         if ((blob)->length < (size)) { \
  61                 return NT_STATUS_INFO_LENGTH_MISMATCH; \
  62         }} while (0)
  63
  64 /* setup a trans2 reply, given the data and params sizes */
  65 static NTSTATUS trans2_setup_reply(struct smb_trans2 *trans,
  66                                    uint16_t param_size, uint16_t data_size,
  67                                    uint16_t setup_count)
  68 {
  69         trans->out.setup_count = setup_count;
  70         if (setup_count > 0) {
  71                 trans->out.setup = talloc_zero_array(trans, uint16_t, setup_count);
  72                 NT_STATUS_HAVE_NO_MEMORY(trans->out.setup);
  73         }
  74         trans->out.params = data_blob_talloc(trans, NULL, param_size);
  75         if (param_size > 0) NT_STATUS_HAVE_NO_MEMORY(trans->out.params.data);
  76
  77         trans->out.data = data_blob_talloc(trans, NULL, data_size);
  78         if (data_size > 0) NT_STATUS_HAVE_NO_MEMORY(trans->out.data.data);
  79
  80         return NT_STATUS_OK;
  81 }
  82
  83 static NTSTATUS trans2_push_fsinfo(struct smbsrv_connection *smb_conn,
  84                                    TALLOC_CTX *mem_ctx,
  85                                    DATA_BLOB *blob,
  86                                    union smb_fsinfo *fsinfo,
  87                                    int default_str_flags)
  88 {
  89         enum smb_fsinfo_level passthru_level;
  90
  91         switch (fsinfo->generic.level) {
  92         case RAW_QFS_ALLOCATION:
  93                 TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, 18));
  94
  95                 SIVAL(blob->data,  0, fsinfo->allocation.out.fs_id);
  96                 SIVAL(blob->data,  4, fsinfo->allocation.out.sectors_per_unit);
  97                 SIVAL(blob->data,  8, fsinfo->allocation.out.total_alloc_units);
  98                 SIVAL(blob->data, 12, fsinfo->allocation.out.avail_alloc_units);
  99                 SSVAL(blob->data, 16, fsinfo->allocation.out.bytes_per_sector);
 100
 101                 return NT_STATUS_OK;
 102
 103         case RAW_QFS_VOLUME:
 104                 TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, 5));
 105
 106                 SIVAL(blob->data,       0, fsinfo->volume.out.serial_number);
 107                 /* w2k3 implements this incorrectly for unicode - it
 108                  * leaves the last byte off the string */
 109                 TRANS2_CHECK(smbsrv_blob_append_string(mem_ctx, blob,
 110                                                        fsinfo->volume.out.volume_name.s,
 111                                                        4, default_str_flags,
 112                                                        STR_LEN8BIT|STR_NOALIGN));
 113
 114                 return NT_STATUS_OK;
 115
 116         case RAW_QFS_VOLUME_INFO:
 117                 passthru_level = RAW_QFS_VOLUME_INFORMATION;
 118                 break;
 119
 120         case RAW_QFS_SIZE_INFO:
 121                 passthru_level = RAW_QFS_SIZE_INFORMATION;
 122                 break;
 123
 124         case RAW_QFS_DEVICE_INFO:
 125                 passthru_level = RAW_QFS_DEVICE_INFORMATION;
 126                 break;
 127
 128         case RAW_QFS_ATTRIBUTE_INFO:
 129                 passthru_level = RAW_QFS_ATTRIBUTE_INFORMATION;
 130                 break;
 131
 132         default:
 133                 passthru_level = fsinfo->generic.level;
 134                 break;
 135         }
 136
 137         return smbsrv_push_passthru_fsinfo(mem_ctx, blob,
 138                                            passthru_level, fsinfo,
 139                                            default_str_flags);
 140 }
 141
 142 /*
 143   trans2 qfsinfo implementation send
 144 */
 145 static NTSTATUS trans2_qfsinfo_send(struct trans_op *op)
 146 {
 147         struct smbsrv_request *req = op->req;
 148         struct smb_trans2 *trans = op->trans;
 149         union smb_fsinfo *fsinfo;
 150
 151         TRANS2_CHECK_ASYNC_STATUS(fsinfo, union smb_fsinfo);
 152
 153         TRANS2_CHECK(trans2_setup_reply(trans, 0, 0, 0));
 154
 155         TRANS2_CHECK(trans2_push_fsinfo(req->smb_conn, trans,
 156                                         &trans->out.data, fsinfo,
 157                                         SMBSRV_REQ_DEFAULT_STR_FLAGS(req)));
 158
 159         return NT_STATUS_OK;
 160 }
 161
 162 /*
 163   trans2 qfsinfo implementation
 164 */
 165 static NTSTATUS trans2_qfsinfo(struct smbsrv_request *req, struct trans_op *op)
 166 {
 167         struct smb_trans2 *trans = op->trans;
 168         union smb_fsinfo *fsinfo;
 169         uint16_t level;
 170
 171         /* make sure we got enough parameters */
 172         if (trans->in.params.length != 2) {
 173                 return NT_STATUS_FOOBAR;
 174         }
 175
 176         fsinfo = talloc(op, union smb_fsinfo);
 177         NT_STATUS_HAVE_NO_MEMORY(fsinfo);
 178
 179         level = SVAL(trans->in.params.data, 0);
 180
 181         /* work out the backend level - we make it 1-1 in the header */
 182         fsinfo->generic.level = (enum smb_fsinfo_level)level;
 183         if (fsinfo->generic.level >= RAW_QFS_GENERIC) {
 184                 return NT_STATUS_INVALID_LEVEL;
 185         }
 186
 187         op->op_info = fsinfo;
 188         op->send_fn = trans2_qfsinfo_send;
 189
 190         return ntvfs_fsinfo(req->ntvfs, fsinfo);
 191 }
 192
 193
 194 /*
 195   trans2 open implementation send
 196 */
 197 static NTSTATUS trans2_open_send(struct trans_op *op)
 198 {
 199         struct smbsrv_request *req = op->req;
 200         struct smb_trans2 *trans = op->trans;
 201         union smb_open *io;
 202
 203         TRANS2_CHECK_ASYNC_STATUS(io, union smb_open);
 204
 205         TRANS2_CHECK(trans2_setup_reply(trans, 30, 0, 0));
 206
 207         smbsrv_push_fnum(trans->out.params.data, VWV(0), io->t2open.out.file.ntvfs);
 208         SSVAL(trans->out.params.data, VWV(1), io->t2open.out.attrib);
 209         srv_push_dos_date3(req->smb_conn, trans->out.params.data,
 210                            VWV(2), io->t2open.out.write_time);
 211         SIVAL(trans->out.params.data, VWV(4), io->t2open.out.size);
 212         SSVAL(trans->out.params.data, VWV(6), io->t2open.out.access);
 213         SSVAL(trans->out.params.data, VWV(7), io->t2open.out.ftype);
 214         SSVAL(trans->out.params.data, VWV(8), io->t2open.out.devstate);
 215         SSVAL(trans->out.params.data, VWV(9), io->t2open.out.action);
 216         SIVAL(trans->out.params.data, VWV(10), 0); /* reserved */
 217         SSVAL(trans->out.params.data, VWV(12), 0); /* EaErrorOffset */
 218         SIVAL(trans->out.params.data, VWV(13), 0); /* EaLength */
 219
 220         return NT_STATUS_OK;
 221 }
 222
 223 /*
 224   trans2 open implementation
 225 */
 226 static NTSTATUS trans2_open(struct smbsrv_request *req, struct trans_op *op)
 227 {
 228         struct smb_trans2 *trans = op->trans;
 229         union smb_open *io;
 230
 231         /* make sure we got enough parameters */
 232         if (trans->in.params.length < 29) {
 233                 return NT_STATUS_FOOBAR;
 234         }
 235
 236         io = talloc(op, union smb_open);
 237         NT_STATUS_HAVE_NO_MEMORY(io);
 238
 239         io->t2open.level           = RAW_OPEN_T2OPEN;
 240         io->t2open.in.flags        = SVAL(trans->in.params.data, VWV(0));
 241         io->t2open.in.open_mode    = SVAL(trans->in.params.data, VWV(1));
 242         io->t2open.in.search_attrs = SVAL(trans->in.params.data, VWV(2));
 243         io->t2open.in.file_attrs   = SVAL(trans->in.params.data, VWV(3));
 244         io->t2open.in.write_time   = srv_pull_dos_date(req->smb_conn,
 245                                                     trans->in.params.data + VWV(4));
 246         io->t2open.in.open_func    = SVAL(trans->in.params.data, VWV(6));
 247         io->t2open.in.size         = IVAL(trans->in.params.data, VWV(7));
 248         io->t2open.in.timeout      = IVAL(trans->in.params.data, VWV(9));
 249         io->t2open.in.num_eas      = 0;
 250         io->t2open.in.eas          = NULL;
 251
 252         smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 28, &io->t2open.in.fname, 0);
 253         if (io->t2open.in.fname == NULL) {
 254                 return NT_STATUS_FOOBAR;
 255         }
 256
 257         TRANS2_CHECK(ea_pull_list(&trans->in.data, io, &io->t2open.in.num_eas, &io->t2open.in.eas));
 258
 259         op->op_info = io;
 260         op->send_fn = trans2_open_send;
 261
 262         return ntvfs_open(req->ntvfs, io);
 263 }
 264
 265
 266 /*
 267   trans2 simple send
 268 */
 269 static NTSTATUS trans2_simple_send(struct trans_op *op)
 270 {
 271         struct smbsrv_request *req = op->req;
 272         struct smb_trans2 *trans = op->trans;
 273
 274         TRANS2_CHECK_ASYNC_STATUS_SIMPLE;
 275
 276         TRANS2_CHECK(trans2_setup_reply(trans, 2, 0, 0));
 277
 278         SSVAL(trans->out.params.data, VWV(0), 0);
 279
 280         return NT_STATUS_OK;
 281 }
 282
 283 /*
 284   trans2 mkdir implementation
 285 */
 286 static NTSTATUS trans2_mkdir(struct smbsrv_request *req, struct trans_op *op)
 287 {
 288         struct smb_trans2 *trans = op->trans;
 289         union smb_mkdir *io;
 290
 291         /* make sure we got enough parameters */
 292         if (trans->in.params.length < 5) {
 293                 return NT_STATUS_FOOBAR;
 294         }
 295
 296         io = talloc(op, union smb_mkdir);
 297         NT_STATUS_HAVE_NO_MEMORY(io);
 298
 299         io->t2mkdir.level = RAW_MKDIR_T2MKDIR;
 300         smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 4, &io->t2mkdir.in.path, 0);
 301         if (io->t2mkdir.in.path == NULL) {
 302                 return NT_STATUS_FOOBAR;
 303         }
 304
 305         TRANS2_CHECK(ea_pull_list(&trans->in.data, io,
 306                                   &io->t2mkdir.in.num_eas,
 307                                   &io->t2mkdir.in.eas));
 308
 309         op->op_info = io;
 310         op->send_fn = trans2_simple_send;
 311
 312         return ntvfs_mkdir(req->ntvfs, io);
 313 }
 314
 315 static NTSTATUS trans2_push_fileinfo(struct smbsrv_connection *smb_conn,
 316                                      TALLOC_CTX *mem_ctx,
 317                                      DATA_BLOB *blob,
 318                                      union smb_fileinfo *st,
 319                                      int default_str_flags)
 320 {
 321         uint32_t list_size;
 322         enum smb_fileinfo_level passthru_level;
 323
 324         switch (st->generic.level) {
 325         case RAW_FILEINFO_GENERIC:
 326         case RAW_FILEINFO_GETATTR:
 327         case RAW_FILEINFO_GETATTRE:
 328         case RAW_FILEINFO_SEC_DESC:
 329         case RAW_FILEINFO_SMB2_ALL_EAS:
 330         case RAW_FILEINFO_SMB2_ALL_INFORMATION:
 331                 /* handled elsewhere */
 332                 return NT_STATUS_INVALID_LEVEL;
 333
 334         case RAW_FILEINFO_UNIX_BASIC:
 335         case RAW_FILEINFO_UNIX_LINK:
 336                 /* not implemented yet */
 337                 return NT_STATUS_INVALID_LEVEL;
 338
 339         case RAW_FILEINFO_STANDARD:
 340                 TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, 22));
 341
 342                 srv_push_dos_date2(smb_conn, blob->data, 0, st->standard.out.create_time);
 343                 srv_push_dos_date2(smb_conn, blob->data, 4, st->standard.out.access_time);
 344                 srv_push_dos_date2(smb_conn, blob->data, 8, st->standard.out.write_time);
 345                 SIVAL(blob->data,        12, st->standard.out.size);
 346                 SIVAL(blob->data,        16, st->standard.out.alloc_size);
 347                 SSVAL(blob->data,        20, st->standard.out.attrib);
 348                 return NT_STATUS_OK;
 349
 350         case RAW_FILEINFO_EA_SIZE:
 351                 TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, 26));
 352
 353                 srv_push_dos_date2(smb_conn, blob->data, 0, st->ea_size.out.create_time);
 354                 srv_push_dos_date2(smb_conn, blob->data, 4, st->ea_size.out.access_time);
 355                 srv_push_dos_date2(smb_conn, blob->data, 8, st->ea_size.out.write_time);
 356                 SIVAL(blob->data,        12, st->ea_size.out.size);
 357                 SIVAL(blob->data,        16, st->ea_size.out.alloc_size);
 358                 SSVAL(blob->data,        20, st->ea_size.out.attrib);
 359                 SIVAL(blob->data,        22, st->ea_size.out.ea_size);
 360                 return NT_STATUS_OK;
 361
 362         case RAW_FILEINFO_EA_LIST:
 363                 list_size = ea_list_size(st->ea_list.out.num_eas,
 364                                          st->ea_list.out.eas);
 365                 TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, list_size));
 366
 367                 ea_put_list(blob->data,
 368                             st->ea_list.out.num_eas, st->ea_list.out.eas);
 369                 return NT_STATUS_OK;
 370
 371         case RAW_FILEINFO_ALL_EAS:
 372                 list_size = ea_list_size(st->all_eas.out.num_eas,
 373                                                   st->all_eas.out.eas);
 374                 TRANS2_CHECK(smbsrv_blob_grow_data(mem_ctx, blob, list_size));
 375
 376                 ea_put_list(blob->data,
 377                             st->all_eas.out.num_eas, st->all_eas.out.eas);
 378                 return NT_STATUS_OK;
 379
 380         case RAW_FILEINFO_IS_NAME_VALID:
 381                 return NT_STATUS_OK;
 382
 383         case RAW_FILEINFO_BASIC_INFO:
 384                 passthru_level = RAW_FILEINFO_BASIC_INFORMATION;
 385                 break;
 386
 387         case RAW_FILEINFO_STANDARD_INFO:
 388                 passthru_level = RAW_FILEINFO_STANDARD_INFORMATION;
 389                 break;
 390
 391         case RAW_FILEINFO_EA_INFO:
 392                 passthru_level = RAW_FILEINFO_EA_INFORMATION;
 393                 break;
 394
 395         case RAW_FILEINFO_COMPRESSION_INFO:
 396                 passthru_level = RAW_FILEINFO_COMPRESSION_INFORMATION;
 397                 break;
 398
 399         case RAW_FILEINFO_ALL_INFO:
 400                 passthru_level = RAW_FILEINFO_ALL_INFORMATION;
 401                 break;
 402
 403         case RAW_FILEINFO_NAME_INFO:
 404                 passthru_level = RAW_FILEINFO_NAME_INFORMATION;
 405                 break;
 406
 407         case RAW_FILEINFO_ALT_NAME_INFO:
 408                 passthru_level = RAW_FILEINFO_ALT_NAME_INFORMATION;
 409                 break;
 410
 411         case RAW_FILEINFO_STREAM_INFO:
 412                 passthru_level = RAW_FILEINFO_STREAM_INFORMATION;
 413                 break;
 414
 415         default:
 416                 passthru_level = st->generic.level;
 417                 break;
 418         }
 419
 420         return smbsrv_push_passthru_fileinfo(mem_ctx, blob,
 421                                              passthru_level, st,
 422                                              default_str_flags);
 423 }
 424
 425 /*
 426   fill in the reply from a qpathinfo or qfileinfo call
 427 */
 428 static NTSTATUS trans2_fileinfo_send(struct trans_op *op)
 429 {
 430         struct smbsrv_request *req = op->req;
 431         struct smb_trans2 *trans = op->trans;
 432         union smb_fileinfo *st;
 433
 434         TRANS2_CHECK_ASYNC_STATUS(st, union smb_fileinfo);
 435
 436         TRANS2_CHECK(trans2_setup_reply(trans, 2, 0, 0));
 437         SSVAL(trans->out.params.data, 0, 0);
 438
 439         TRANS2_CHECK(trans2_push_fileinfo(req->smb_conn, trans,
 440                                           &trans->out.data, st,
 441                                           SMBSRV_REQ_DEFAULT_STR_FLAGS(req)));
 442
 443         return NT_STATUS_OK;
 444 }
 445
 446 /*
 447   trans2 qpathinfo implementation
 448 */
 449 static NTSTATUS trans2_qpathinfo(struct smbsrv_request *req, struct trans_op *op)
 450 {
 451         struct smb_trans2 *trans = op->trans;
 452         union smb_fileinfo *st;
 453         uint16_t level;
 454
 455         /* make sure we got enough parameters */
 456         if (trans->in.params.length < 2) {
 457                 return NT_STATUS_FOOBAR;
 458         }
 459
 460         st = talloc(op, union smb_fileinfo);
 461         NT_STATUS_HAVE_NO_MEMORY(st);
 462
 463         level = SVAL(trans->in.params.data, 0);
 464
 465         smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 6, &st->generic.in.file.path, 0);
 466         if (st->generic.in.file.path == NULL) {
 467                 return NT_STATUS_FOOBAR;
 468         }
 469
 470         /* work out the backend level - we make it 1-1 in the header */
 471         st->generic.level = (enum smb_fileinfo_level)level;
 472         if (st->generic.level >= RAW_FILEINFO_GENERIC) {
 473                 return NT_STATUS_INVALID_LEVEL;
 474         }
 475
 476         if (st->generic.level == RAW_FILEINFO_EA_LIST) {
 477                 TRANS2_CHECK(ea_pull_name_list(&trans->in.data, req,
 478                                                &st->ea_list.in.num_names,
 479                                                &st->ea_list.in.ea_names));
 480         }
 481
 482         op->op_info = st;
 483         op->send_fn = trans2_fileinfo_send;
 484
 485         return ntvfs_qpathinfo(req->ntvfs, st);
 486 }
 487
 488
 489 /*
 490   trans2 qpathinfo implementation
 491 */
 492 static NTSTATUS trans2_qfileinfo(struct smbsrv_request *req, struct trans_op *op)
 493 {
 494         struct smb_trans2 *trans = op->trans;
 495         union smb_fileinfo *st;
 496         uint16_t level;
 497         struct ntvfs_handle *h;
 498
 499         /* make sure we got enough parameters */
 500         if (trans->in.params.length < 4) {
 501                 return NT_STATUS_FOOBAR;
 502         }
 503
 504         st = talloc(op, union smb_fileinfo);
 505         NT_STATUS_HAVE_NO_MEMORY(st);
 506
 507         h     = smbsrv_pull_fnum(req, trans->in.params.data, 0);
 508         level = SVAL(trans->in.params.data, 2);
 509
 510         st->generic.in.file.ntvfs = h;
 511         /* work out the backend level - we make it 1-1 in the header */
 512         st->generic.level = (enum smb_fileinfo_level)level;
 513         if (st->generic.level >= RAW_FILEINFO_GENERIC) {
 514                 return NT_STATUS_INVALID_LEVEL;
 515         }
 516
 517         if (st->generic.level == RAW_FILEINFO_EA_LIST) {
 518                 TRANS2_CHECK(ea_pull_name_list(&trans->in.data, req,
 519                                                &st->ea_list.in.num_names,
 520                                                &st->ea_list.in.ea_names));
 521         }
 522
 523         op->op_info = st;
 524         op->send_fn = trans2_fileinfo_send;
 525
 526         SMBSRV_CHECK_FILE_HANDLE_NTSTATUS(st->generic.in.file.ntvfs);
 527         return ntvfs_qfileinfo(req->ntvfs, st);
 528 }
 529
 530
 531 /*
 532   parse a trans2 setfileinfo/setpathinfo data blob
 533 */
 534 static NTSTATUS trans2_parse_sfileinfo(struct smbsrv_request *req,
 535                                        union smb_setfileinfo *st,
 536                                        const DATA_BLOB *blob)
 537 {
 538         enum smb_setfileinfo_level passthru_level;
 539
 540         switch (st->generic.level) {
 541         case RAW_SFILEINFO_GENERIC:
 542         case RAW_SFILEINFO_SETATTR:
 543         case RAW_SFILEINFO_SETATTRE:
 544         case RAW_SFILEINFO_SEC_DESC:
 545                 /* handled elsewhere */
 546                 return NT_STATUS_INVALID_LEVEL;
 547
 548         case RAW_SFILEINFO_STANDARD:
 549                 CHECK_MIN_BLOB_SIZE(blob, 12);
 550
 551                 st->standard.in.create_time = srv_pull_dos_date2(req->smb_conn, blob->data + 0);
 552                 st->standard.in.access_time = srv_pull_dos_date2(req->smb_conn, blob->data + 4);
 553                 st->standard.in.write_time  = srv_pull_dos_date2(req->smb_conn, blob->data + 8);
 554
 555                 return NT_STATUS_OK;
 556
 557         case RAW_SFILEINFO_EA_SET:
 558                 return ea_pull_list(blob, req,
 559                                     &st->ea_set.in.num_eas,
 560                                     &st->ea_set.in.eas);
 561
 562         case SMB_SFILEINFO_BASIC_INFO:
 563         case SMB_SFILEINFO_BASIC_INFORMATION:
 564                 passthru_level = SMB_SFILEINFO_BASIC_INFORMATION;
 565                 break;
 566
 567         case SMB_SFILEINFO_DISPOSITION_INFO:
 568         case SMB_SFILEINFO_DISPOSITION_INFORMATION:
 569                 passthru_level = SMB_SFILEINFO_DISPOSITION_INFORMATION;
 570                 break;
 571
 572         case SMB_SFILEINFO_ALLOCATION_INFO:
 573         case SMB_SFILEINFO_ALLOCATION_INFORMATION:
 574                 passthru_level = SMB_SFILEINFO_ALLOCATION_INFORMATION;
 575                 break;
 576
 577         case RAW_SFILEINFO_END_OF_FILE_INFO:
 578         case RAW_SFILEINFO_END_OF_FILE_INFORMATION:
 579                 passthru_level = RAW_SFILEINFO_END_OF_FILE_INFORMATION;
 580                 break;
 581
 582         case RAW_SFILEINFO_RENAME_INFORMATION:
 583         case RAW_SFILEINFO_POSITION_INFORMATION:
 584         case RAW_SFILEINFO_MODE_INFORMATION:
 585                 passthru_level = st->generic.level;
 586                 break;
 587
 588         case RAW_SFILEINFO_UNIX_BASIC:
 589         case RAW_SFILEINFO_UNIX_LINK:
 590         case RAW_SFILEINFO_UNIX_HLINK:
 591         case RAW_SFILEINFO_1023:
 592         case RAW_SFILEINFO_1025:
 593         case RAW_SFILEINFO_1029:
 594         case RAW_SFILEINFO_1032:
 595         case RAW_SFILEINFO_1039:
 596         case RAW_SFILEINFO_1040:
 597                 return NT_STATUS_INVALID_LEVEL;
 598
 599         default:
 600                 /* we need a default here to cope with invalid values on the wire */
 601                 return NT_STATUS_INVALID_LEVEL;
 602         }
 603
 604         return smbsrv_pull_passthru_sfileinfo(st, passthru_level, st,
 605                                               blob, SMBSRV_REQ_DEFAULT_STR_FLAGS(req),
 606                                               &req->in.bufinfo);
 607 }
 608
 609 /*
 610   trans2 setfileinfo implementation
 611 */
 612 static NTSTATUS trans2_setfileinfo(struct smbsrv_request *req, struct trans_op *op)
 613 {
 614         struct smb_trans2 *trans = op->trans;
 615         union smb_setfileinfo *st;
 616         uint16_t level;
 617         struct ntvfs_handle *h;
 618
 619         /* make sure we got enough parameters */
 620         if (trans->in.params.length < 4) {
 621                 return NT_STATUS_FOOBAR;
 622         }
 623
 624         st = talloc(op, union smb_setfileinfo);
 625         NT_STATUS_HAVE_NO_MEMORY(st);
 626
 627         h     = smbsrv_pull_fnum(req, trans->in.params.data, 0);
 628         level = SVAL(trans->in.params.data, 2);
 629
 630         st->generic.in.file.ntvfs = h;
 631         /* work out the backend level - we make it 1-1 in the header */
 632         st->generic.level = (enum smb_setfileinfo_level)level;
 633         if (st->generic.level >= RAW_SFILEINFO_GENERIC) {
 634                 return NT_STATUS_INVALID_LEVEL;
 635         }
 636
 637         TRANS2_CHECK(trans2_parse_sfileinfo(req, st, &trans->in.data));
 638
 639         op->op_info = st;
 640         op->send_fn = trans2_simple_send;
 641
 642         SMBSRV_CHECK_FILE_HANDLE_NTSTATUS(st->generic.in.file.ntvfs);
 643         return ntvfs_setfileinfo(req->ntvfs, st);
 644 }
 645
 646 /*
 647   trans2 setpathinfo implementation
 648 */
 649 static NTSTATUS trans2_setpathinfo(struct smbsrv_request *req, struct trans_op *op)
 650 {
 651         struct smb_trans2 *trans = op->trans;
 652         union smb_setfileinfo *st;
 653         uint16_t level;
 654
 655         /* make sure we got enough parameters */
 656         if (trans->in.params.length < 4) {
 657                 return NT_STATUS_FOOBAR;
 658         }
 659
 660         st = talloc(op, union smb_setfileinfo);
 661         NT_STATUS_HAVE_NO_MEMORY(st);
 662
 663         level = SVAL(trans->in.params.data, 0);
 664
 665         smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 6, &st->generic.in.file.path, 0);
 666         if (st->generic.in.file.path == NULL) {
 667                 return NT_STATUS_FOOBAR;
 668         }
 669
 670         /* work out the backend level - we make it 1-1 in the header */
 671         st->generic.level = (enum smb_setfileinfo_level)level;
 672         if (st->generic.level >= RAW_SFILEINFO_GENERIC) {
 673                 return NT_STATUS_INVALID_LEVEL;
 674         }
 675
 676         TRANS2_CHECK(trans2_parse_sfileinfo(req, st, &trans->in.data));
 677
 678         op->op_info = st;
 679         op->send_fn = trans2_simple_send;
 680
 681         return ntvfs_setpathinfo(req->ntvfs, st);
 682 }
 683
 684
 685 /* a structure to encapsulate the state information about an in-progress ffirst/fnext operation */
 686 struct find_state {
 687         struct trans_op *op;
 688         void *search;
 689         enum smb_search_data_level data_level;
 690         uint16_t last_entry_offset;
 691         uint16_t flags;
 692 };
 693
 694 /*
 695   fill a single entry in a trans2 find reply
 696 */
 697 static NTSTATUS find_fill_info(struct find_state *state,
 698                                const union smb_search_data *file)
 699 {
 700         struct smbsrv_request *req = state->op->req;
 701         struct smb_trans2 *trans = state->op->trans;
 702         uint8_t *data;
 703         uint_t ofs = trans->out.data.length;
 704         uint32_t ea_size;
 705
 706         switch (state->data_level) {
 707         case RAW_SEARCH_DATA_GENERIC:
 708         case RAW_SEARCH_DATA_SEARCH:
 709                 /* handled elsewhere */
 710                 return NT_STATUS_INVALID_LEVEL;
 711
 712         case RAW_SEARCH_DATA_STANDARD:
 713                 if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) {
 714                         TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 27));
 715                         SIVAL(trans->out.data.data, ofs, file->standard.resume_key);
 716                         ofs += 4;
 717                 } else {
 718                         TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 23));
 719                 }
 720                 data = trans->out.data.data + ofs;
 721                 srv_push_dos_date2(req->smb_conn, data, 0, file->standard.create_time);
 722                 srv_push_dos_date2(req->smb_conn, data, 4, file->standard.access_time);
 723                 srv_push_dos_date2(req->smb_conn, data, 8, file->standard.write_time);
 724                 SIVAL(data, 12, file->standard.size);
 725                 SIVAL(data, 16, file->standard.alloc_size);
 726                 SSVAL(data, 20, file->standard.attrib);
 727                 TRANS2_CHECK(smbsrv_blob_append_string(trans, &trans->out.data, file->standard.name.s,
 728                                                        ofs + 22, SMBSRV_REQ_DEFAULT_STR_FLAGS(req),
 729                                                        STR_LEN8BIT | STR_TERMINATE | STR_LEN_NOTERM));
 730                 break;
 731
 732         case RAW_SEARCH_DATA_EA_SIZE:
 733                 if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) {
 734                         TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 31));
 735                         SIVAL(trans->out.data.data, ofs, file->ea_size.resume_key);
 736                         ofs += 4;
 737                 } else {
 738                         TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 27));
 739                 }
 740                 data = trans->out.data.data + ofs;
 741                 srv_push_dos_date2(req->smb_conn, data, 0, file->ea_size.create_time);
 742                 srv_push_dos_date2(req->smb_conn, data, 4, file->ea_size.access_time);
 743                 srv_push_dos_date2(req->smb_conn, data, 8, file->ea_size.write_time);
 744                 SIVAL(data, 12, file->ea_size.size);
 745                 SIVAL(data, 16, file->ea_size.alloc_size);
 746                 SSVAL(data, 20, file->ea_size.attrib);
 747                 SIVAL(data, 22, file->ea_size.ea_size);
 748                 TRANS2_CHECK(smbsrv_blob_append_string(trans, &trans->out.data, file->ea_size.name.s,
 749                                                        ofs + 26, SMBSRV_REQ_DEFAULT_STR_FLAGS(req),
 750                                                        STR_LEN8BIT | STR_NOALIGN));
 751                 TRANS2_CHECK(smbsrv_blob_fill_data(trans, &trans->out.data, trans->out.data.length + 1));
 752                 break;
 753
 754         case RAW_SEARCH_DATA_EA_LIST:
 755                 ea_size = ea_list_size(file->ea_list.eas.num_eas, file->ea_list.eas.eas);
 756                 if (state->flags & FLAG_TRANS2_FIND_REQUIRE_RESUME) {
 757                         TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 27 + ea_size));
 758                         SIVAL(trans->out.data.data, ofs, file->ea_list.resume_key);
 759                         ofs += 4;
 760                 } else {
 761                         TRANS2_CHECK(smbsrv_blob_grow_data(trans, &trans->out.data, ofs + 23 + ea_size));
 762                 }
 763                 data = trans->out.data.data + ofs;
 764                 srv_push_dos_date2(req->smb_conn, data, 0, file->ea_list.create_time);
 765                 srv_push_dos_date2(req->smb_conn, data, 4, file->ea_list.access_time);
 766                 srv_push_dos_date2(req->smb_conn, data, 8, file->ea_list.write_time);
 767                 SIVAL(data, 12, file->ea_list.size);
 768                 SIVAL(data, 16, file->ea_list.alloc_size);
 769                 SSVAL(data, 20, file->ea_list.attrib);
 770                 ea_put_list(data+22, file->ea_list.eas.num_eas, file->ea_list.eas.eas);
 771                 TRANS2_CHECK(smbsrv_blob_append_string(trans, &trans->out.data, file->ea_list.name.s,
 772                                                        ofs + 22 + ea_size, SMBSRV_REQ_DEFAULT_STR_FLAGS(req),
 773                                                        STR_LEN8BIT | STR_NOALIGN));
 774                 TRANS2_CHECK(smbsrv_blob_fill_data(trans, &trans->out.data, trans->out.data.length + 1));
 775                 break;
 776
 777         case RAW_SEARCH_DATA_DIRECTORY_INFO:
 778         case RAW_SEARCH_DATA_FULL_DIRECTORY_INFO:
 779         case RAW_SEARCH_DATA_NAME_INFO:
 780         case RAW_SEARCH_DATA_BOTH_DIRECTORY_INFO:
 781         case RAW_SEARCH_DATA_ID_FULL_DIRECTORY_INFO:
 782         case RAW_SEARCH_DATA_ID_BOTH_DIRECTORY_INFO:
 783                 return smbsrv_push_passthru_search(trans, &trans->out.data, state->data_level, file,
 784                                                    SMBSRV_REQ_DEFAULT_STR_FLAGS(req));
 785
 786         case RAW_SEARCH_DATA_UNIX_INFO:
 787                 return NT_STATUS_INVALID_LEVEL;
 788         }
 789
 790         return NT_STATUS_OK;
 791 }
 792
 793 /* callback function for trans2 findfirst/findnext */
 794 static bool find_callback(void *private, const union smb_search_data *file)
 795 {
 796         struct find_state *state = talloc_get_type(private, struct find_state);
 797         struct smb_trans2 *trans = state->op->trans;
 798         uint_t old_length;
 799
 800         old_length = trans->out.data.length;
 801
 802         if (!NT_STATUS_IS_OK(find_fill_info(state, file)) ||
 803             trans->out.data.length > trans->in.max_data) {
 804                 /* restore the old length and tell the backend to stop */
 805                 smbsrv_blob_grow_data(trans, &trans->out.data, old_length);
 806                 return false;
 807         }
 808
 809         state->last_entry_offset = old_length;
 810         return true;
 811 }
 812
 813 /*
 814   trans2 findfirst send
 815  */
 816 static NTSTATUS trans2_findfirst_send(struct trans_op *op)
 817 {
 818         struct smbsrv_request *req = op->req;
 819         struct smb_trans2 *trans = op->trans;
 820         union smb_search_first *search;
 821         struct find_state *state;
 822         uint8_t *param;
 823
 824         TRANS2_CHECK_ASYNC_STATUS(state, struct find_state);
 825         search = talloc_get_type(state->search, union smb_search_first);
 826
 827         /* fill in the findfirst reply header */
 828         param = trans->out.params.data;
 829         SSVAL(param, VWV(0), search->t2ffirst.out.handle);
 830         SSVAL(param, VWV(1), search->t2ffirst.out.count);
 831         SSVAL(param, VWV(2), search->t2ffirst.out.end_of_search);
 832         SSVAL(param, VWV(3), 0);
 833         SSVAL(param, VWV(4), state->last_entry_offset);
 834
 835         return NT_STATUS_OK;
 836 }
 837
 838
 839 /*
 840   trans2 findfirst implementation
 841 */
 842 static NTSTATUS trans2_findfirst(struct smbsrv_request *req, struct trans_op *op)
 843 {
 844         struct smb_trans2 *trans = op->trans;
 845         union smb_search_first *search;
 846         uint16_t level;
 847         struct find_state *state;
 848
 849         /* make sure we got all the parameters */
 850         if (trans->in.params.length < 14) {
 851                 return NT_STATUS_FOOBAR;
 852         }
 853
 854         search = talloc(op, union smb_search_first);
 855         NT_STATUS_HAVE_NO_MEMORY(search);
 856
 857         search->t2ffirst.in.search_attrib = SVAL(trans->in.params.data, 0);
 858         search->t2ffirst.in.max_count     = SVAL(trans->in.params.data, 2);
 859         search->t2ffirst.in.flags         = SVAL(trans->in.params.data, 4);
 860         level                             = SVAL(trans->in.params.data, 6);
 861         search->t2ffirst.in.storage_type  = IVAL(trans->in.params.data, 8);
 862
 863         smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 12, &search->t2ffirst.in.pattern, 0);
 864         if (search->t2ffirst.in.pattern == NULL) {
 865                 return NT_STATUS_FOOBAR;
 866         }
 867
 868         search->t2ffirst.level = RAW_SEARCH_TRANS2;
 869         search->t2ffirst.data_level = (enum smb_search_data_level)level;
 870         if (search->t2ffirst.data_level >= RAW_SEARCH_DATA_GENERIC) {
 871                 return NT_STATUS_INVALID_LEVEL;
 872         }
 873
 874         if (search->t2ffirst.data_level == RAW_SEARCH_DATA_EA_LIST) {
 875                 TRANS2_CHECK(ea_pull_name_list(&trans->in.data, req,
 876                                                &search->t2ffirst.in.num_names,
 877                                                &search->t2ffirst.in.ea_names));
 878         }
 879
 880         /* setup the private state structure that the backend will
 881            give us in the callback */
 882         state = talloc(op, struct find_state);
 883         NT_STATUS_HAVE_NO_MEMORY(state);
 884         state->op               = op;
 885         state->search           = search;
 886         state->data_level       = search->t2ffirst.data_level;
 887         state->last_entry_offset= 0;
 888         state->flags            = search->t2ffirst.in.flags;
 889
 890         /* setup for just a header in the reply */
 891         TRANS2_CHECK(trans2_setup_reply(trans, 10, 0, 0));
 892
 893         op->op_info = state;
 894         op->send_fn = trans2_findfirst_send;
 895
 896         return ntvfs_search_first(req->ntvfs, search, state, find_callback);
 897 }
 898
 899
 900 /*
 901   trans2 findnext send
 902 */
 903 static NTSTATUS trans2_findnext_send(struct trans_op *op)
 904 {
 905         struct smbsrv_request *req = op->req;
 906         struct smb_trans2 *trans = op->trans;
 907         union smb_search_next *search;
 908         struct find_state *state;
 909         uint8_t *param;
 910
 911         TRANS2_CHECK_ASYNC_STATUS(state, struct find_state);
 912         search = talloc_get_type(state->search, union smb_search_next);
 913
 914         /* fill in the findfirst reply header */
 915         param = trans->out.params.data;
 916         SSVAL(param, VWV(0), search->t2fnext.out.count);
 917         SSVAL(param, VWV(1), search->t2fnext.out.end_of_search);
 918         SSVAL(param, VWV(2), 0);
 919         SSVAL(param, VWV(3), state->last_entry_offset);
 920
 921         return NT_STATUS_OK;
 922 }
 923
 924
 925 /*
 926   trans2 findnext implementation
 927 */
 928 static NTSTATUS trans2_findnext(struct smbsrv_request *req, struct trans_op *op)
 929 {
 930         struct smb_trans2 *trans = op->trans;
 931         union smb_search_next *search;
 932         uint16_t level;
 933         struct find_state *state;
 934
 935         /* make sure we got all the parameters */
 936         if (trans->in.params.length < 12) {
 937                 return NT_STATUS_FOOBAR;
 938         }
 939
 940         search = talloc(op, union smb_search_next);
 941         NT_STATUS_HAVE_NO_MEMORY(search);
 942
 943         search->t2fnext.in.handle        = SVAL(trans->in.params.data, 0);
 944         search->t2fnext.in.max_count     = SVAL(trans->in.params.data, 2);
 945         level                            = SVAL(trans->in.params.data, 4);
 946         search->t2fnext.in.resume_key    = IVAL(trans->in.params.data, 6);
 947         search->t2fnext.in.flags         = SVAL(trans->in.params.data, 10);
 948
 949         smbsrv_blob_pull_string(&req->in.bufinfo, &trans->in.params, 12, &search->t2fnext.in.last_name, 0);
 950         if (search->t2fnext.in.last_name == NULL) {
 951                 return NT_STATUS_FOOBAR;
 952         }
 953
 954         search->t2fnext.level = RAW_SEARCH_TRANS2;
 955         search->t2fnext.data_level = (enum smb_search_data_level)level;
 956         if (search->t2fnext.data_level >= RAW_SEARCH_DATA_GENERIC) {
 957                 return NT_STATUS_INVALID_LEVEL;
 958         }
 959
 960         if (search->t2fnext.data_level == RAW_SEARCH_DATA_EA_LIST) {
 961                 TRANS2_CHECK(ea_pull_name_list(&trans->in.data, req,
 962                                                &search->t2fnext.in.num_names,
 963                                                &search->t2fnext.in.ea_names));
 964         }
 965
 966         /* setup the private state structure that the backend will give us in the callback */
 967         state = talloc(op, struct find_state);
 968         NT_STATUS_HAVE_NO_MEMORY(state);
 969         state->op               = op;
 970         state->search           = search;
 971         state->data_level       = search->t2fnext.data_level;
 972         state->last_entry_offset= 0;
 973         state->flags            = search->t2fnext.in.flags;
 974
 975         /* setup for just a header in the reply */
 976         TRANS2_CHECK(trans2_setup_reply(trans, 8, 0, 0));
 977
 978         op->op_info = state;
 979         op->send_fn = trans2_findnext_send;
 980
 981         return ntvfs_search_next(req->ntvfs, search, state, find_callback);
 982 }
 983
 984
 985 /*
 986   backend for trans2 requests
 987 */
 988 static NTSTATUS trans2_backend(struct smbsrv_request *req, struct trans_op *op)
 989 {
 990         struct smb_trans2 *trans = op->trans;
 991         NTSTATUS status;
 992
 993         /* direct trans2 pass thru */
 994         status = ntvfs_trans2(req->ntvfs, trans);
 995         if (!NT_STATUS_EQUAL(NT_STATUS_NOT_IMPLEMENTED, status)) {
 996                 return status;
 997         }
 998
 999         /* must have at least one setup word */
1000         if (trans->in.setup_count < 1) {
1001                 return NT_STATUS_FOOBAR;
1002         }
1003
1004         /* the trans2 command is in setup[0] */
1005         switch (trans->in.setup[0]) {
1006         case TRANSACT2_FINDFIRST:
1007                 return trans2_findfirst(req, op);
1008         case TRANSACT2_FINDNEXT:
1009                 return trans2_findnext(req, op);
1010         case TRANSACT2_QPATHINFO:
1011                 return trans2_qpathinfo(req, op);
1012         case TRANSACT2_QFILEINFO:
1013                 return trans2_qfileinfo(req, op);
1014         case TRANSACT2_SETFILEINFO:
1015                 return trans2_setfileinfo(req, op);
1016         case TRANSACT2_SETPATHINFO:
1017                 return trans2_setpathinfo(req, op);
1018         case TRANSACT2_QFSINFO:
1019                 return trans2_qfsinfo(req, op);
1020         case TRANSACT2_OPEN:
1021                 return trans2_open(req, op);
1022         case TRANSACT2_MKDIR:
1023                 return trans2_mkdir(req, op);
1024         }
1025
1026         /* an unknown trans2 command */
1027         return NT_STATUS_FOOBAR;
1028 }
1029
1030
1031 /*
1032   send a continue request
1033 */
1034 static void reply_trans_continue(struct smbsrv_request *req, uint8_t command,
1035                                  struct smb_trans2 *trans)
1036 {
1037         struct smbsrv_trans_partial *tp;
1038         int count;
1039
1040         /* make sure they don't flood us */
1041         for (count=0,tp=req->smb_conn->trans_partial;tp;tp=tp->next) count++;
1042         if (count > 100) {
1043                 smbsrv_send_error(req, NT_STATUS_INSUFFICIENT_RESOURCES);
1044                 return;
1045         }
1046
1047         tp = talloc(req, struct smbsrv_trans_partial);
1048
1049         tp->req = talloc_reference(tp, req);
1050         tp->trans = trans;
1051         tp->command = command;
1052
1053         DLIST_ADD(req->smb_conn->trans_partial, tp);
1054
1055         /* send a 'please continue' reply */
1056         smbsrv_setup_reply(req, 0, 0);
1057         smbsrv_send_reply(req);
1058 }
1059
1060
1061 /*
1062   answer a reconstructed trans request
1063 */
1064 static void reply_trans_send(struct ntvfs_request *ntvfs)
1065 {
1066         struct smbsrv_request *req;
1067         struct trans_op *op;
1068         struct smb_trans2 *trans;
1069         uint16_t params_left, data_left;
1070         uint8_t *params, *data;
1071         int i;
1072
1073         SMBSRV_CHECK_ASYNC_STATUS_ERR(op, struct trans_op);
1074         trans = op->trans;
1075
1076         /* if this function needs work to form the nttrans reply buffer, then
1077            call that now */
1078         if (op->send_fn != NULL) {
1079                 NTSTATUS status;
1080                 status = op->send_fn(op);
1081                 if (!NT_STATUS_IS_OK(status)) {
1082                         smbsrv_send_error(req, status);
1083                         return;
1084                 }
1085         }
1086
1087         params_left = trans->out.params.length;
1088         data_left   = trans->out.data.length;
1089         params      = trans->out.params.data;
1090         data        = trans->out.data.data;
1091
1092         smbsrv_setup_reply(req, 10 + trans->out.setup_count, 0);
1093
1094         if (!NT_STATUS_IS_OK(req->ntvfs->async_states->status)) {
1095                 smbsrv_setup_error(req, req->ntvfs->async_states->status);
1096         }
1097
1098         /* we need to divide up the reply into chunks that fit into
1099            the negotiated buffer size */
1100         do {
1101                 uint16_t this_data, this_param, max_bytes;
1102                 uint_t align1 = 1, align2 = (params_left ? 2 : 0);
1103                 struct smbsrv_request *this_req;
1104
1105                 max_bytes = req_max_data(req) - (align1 + align2);
1106
1107                 this_param = params_left;
1108                 if (this_param > max_bytes) {
1109                         this_param = max_bytes;
1110                 }
1111                 max_bytes -= this_param;
1112
1113                 this_data = data_left;
1114                 if (this_data > max_bytes) {
1115                         this_data = max_bytes;
1116                 }
1117
1118                 /* don't destroy unless this is the last chunk */
1119                 if (params_left - this_param != 0 ||
1120                     data_left - this_data != 0) {
1121                         this_req = smbsrv_setup_secondary_request(req);
1122                 } else {
1123                         this_req = req;
1124                 }
1125
1126                 req_grow_data(this_req, this_param + this_data + (align1 + align2));
1127
1128                 SSVAL(this_req->out.vwv, VWV(0), trans->out.params.length);
1129                 SSVAL(this_req->out.vwv, VWV(1), trans->out.data.length);
1130                 SSVAL(this_req->out.vwv, VWV(2), 0);
1131
1132                 SSVAL(this_req->out.vwv, VWV(3), this_param);
1133                 SSVAL(this_req->out.vwv, VWV(4), align1 + PTR_DIFF(this_req->out.data, this_req->out.hdr));
1134                 SSVAL(this_req->out.vwv, VWV(5), PTR_DIFF(params, trans->out.params.data));
1135
1136                 SSVAL(this_req->out.vwv, VWV(6), this_data);
1137                 SSVAL(this_req->out.vwv, VWV(7), align1 + align2 +
1138                       PTR_DIFF(this_req->out.data + this_param, this_req->out.hdr));
1139                 SSVAL(this_req->out.vwv, VWV(8), PTR_DIFF(data, trans->out.data.data));
1140
1141                 SSVAL(this_req->out.vwv, VWV(9), trans->out.setup_count);
1142                 for (i=0;i<trans->out.setup_count;i++) {
1143                         SSVAL(this_req->out.vwv, VWV(10+i), trans->out.setup[i]);
1144                 }
1145
1146                 memset(this_req->out.data, 0, align1);
1147                 if (this_param != 0) {
1148                         memcpy(this_req->out.data + align1, params, this_param);
1149                 }
1150                 memset(this_req->out.data+this_param+align1, 0, align2);
1151                 if (this_data != 0) {
1152                         memcpy(this_req->out.data+this_param+align1+align2, data, this_data);
1153                 }
1154
1155                 params_left -= this_param;
1156                 data_left -= this_data;
1157                 params += this_param;
1158                 data += this_data;
1159
1160                 smbsrv_send_reply(this_req);
1161         } while (params_left != 0 || data_left != 0);
1162 }
1163
1164
1165 /*
1166   answer a reconstructed trans request
1167 */
1168 static void reply_trans_complete(struct smbsrv_request *req, uint8_t command,
1169                                  struct smb_trans2 *trans)
1170 {
1171         struct trans_op *op;
1172
1173         SMBSRV_TALLOC_IO_PTR(op, struct trans_op);
1174         SMBSRV_SETUP_NTVFS_REQUEST(reply_trans_send, NTVFS_ASYNC_STATE_MAY_ASYNC);
1175
1176         op->req         = req;
1177         op->trans       = trans;
1178         op->command     = command;
1179         op->op_info     = NULL;
1180         op->send_fn     = NULL;
1181
1182         /* its a full request, give it to the backend */
1183         if (command == SMBtrans) {
1184                 SMBSRV_CALL_NTVFS_BACKEND(ntvfs_trans(req->ntvfs, trans));
1185                 return;
1186         } else {
1187                 SMBSRV_CALL_NTVFS_BACKEND(trans2_backend(req, op));
1188                 return;
1189         }
1190 }
1191
1192 /*
1193   Reply to an SMBtrans or SMBtrans2 request
1194 */
1195 static void reply_trans_generic(struct smbsrv_request *req, uint8_t command)
1196 {
1197         struct smb_trans2 *trans;
1198         int i;
1199         uint16_t param_ofs, data_ofs;
1200         uint16_t param_count, data_count;
1201         uint16_t param_total, data_total;
1202
1203         /* parse request */
1204         if (req->in.wct < 14) {
1205                 smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
1206                 return;
1207         }
1208
1209         trans = talloc(req, struct smb_trans2);
1210         if (trans == NULL) {
1211                 smbsrv_send_error(req, NT_STATUS_NO_MEMORY);
1212                 return;
1213         }
1214
1215         param_total           = SVAL(req->in.vwv, VWV(0));
1216         data_total            = SVAL(req->in.vwv, VWV(1));
1217         trans->in.max_param   = SVAL(req->in.vwv, VWV(2));
1218         trans->in.max_data    = SVAL(req->in.vwv, VWV(3));
1219         trans->in.max_setup   = CVAL(req->in.vwv, VWV(4));
1220         trans->in.flags       = SVAL(req->in.vwv, VWV(5));
1221         trans->in.timeout     = IVAL(req->in.vwv, VWV(6));
1222         param_count           = SVAL(req->in.vwv, VWV(9));
1223         param_ofs             = SVAL(req->in.vwv, VWV(10));
1224         data_count            = SVAL(req->in.vwv, VWV(11));
1225         data_ofs              = SVAL(req->in.vwv, VWV(12));
1226         trans->in.setup_count = CVAL(req->in.vwv, VWV(13));
1227
1228         if (req->in.wct != 14 + trans->in.setup_count) {
1229                 smbsrv_send_error(req, NT_STATUS_DOS(ERRSRV, ERRerror));
1230                 return;
1231         }
1232
1233         /* parse out the setup words */
1234         trans->in.setup = talloc_array(trans, uint16_t, trans->in.setup_count);
1235         if (trans->in.setup_count && !trans->in.setup) {
1236                 smbsrv_send_error(req, NT_STATUS_NO_MEMORY);
1237                 return;
1238         }
1239         for (i=0;i<trans->in.setup_count;i++) {
1240                 trans->in.setup[i] = SVAL(req->in.vwv, VWV(14+i));
1241         }
1242
1243         if (command == SMBtrans) {
1244                 req_pull_string(&req->in.bufinfo, &trans->in.trans_name, req->in.data, -1, STR_TERMINATE);
1245         }
1246
1247         if (!req_pull_blob(&req->in.bufinfo, req->in.hdr + param_ofs, param_count, &trans->in.params) ||
1248             !req_pull_blob(&req->in.bufinfo, req->in.hdr + data_ofs, data_count, &trans->in.data)) {
1249                 smbsrv_send_error(req, NT_STATUS_FOOBAR);
1250                 return;
1251         }
1252
1253         /* is it a partial request? if so, then send a 'send more' message */
1254         if (param_total > param_count || data_total > data_count) {
1255                 reply_trans_continue(req, command, trans);
1256                 return;
1257         }
1258
1259         reply_trans_complete(req, command, trans);
1260 }
1261
1262
1263 /*
1264   Reply to an SMBtranss2 request
1265 */
1266 static void reply_transs_generic(struct smbsrv_request *req, uint8_t command)
1267 {
1268         struct smbsrv_trans_partial *tp;
1269         struct smb_trans2 *trans = NULL;
1270         uint16_t param_ofs, data_ofs;
1271         uint16_t param_count, data_count;
1272         uint16_t param_disp, data_disp;
1273         uint16_t param_total, data_total;
1274         DATA_BLOB params, data;
1275
1276         /* parse request */
1277         if (req->in.wct < 8) {
1278                 smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
1279                 return;
1280         }
1281
1282         for (tp=req->smb_conn->trans_partial;tp;tp=tp->next) {
1283                 if (tp->command == command &&
1284                     SVAL(tp->req->in.hdr, HDR_MID) == SVAL(req->in.hdr, HDR_MID)) {
1285 /* TODO: check the VUID, PID and TID too? */
1286                         break;
1287                 }
1288         }
1289
1290         if (tp == NULL) {
1291                 smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
1292                 return;
1293         }
1294
1295         trans = tp->trans;
1296
1297         param_total           = SVAL(req->in.vwv, VWV(0));
1298         data_total            = SVAL(req->in.vwv, VWV(1));
1299         param_count           = SVAL(req->in.vwv, VWV(2));
1300         param_ofs             = SVAL(req->in.vwv, VWV(3));
1301         param_disp            = SVAL(req->in.vwv, VWV(4));
1302         data_count            = SVAL(req->in.vwv, VWV(5));
1303         data_ofs              = SVAL(req->in.vwv, VWV(6));
1304         data_disp             = SVAL(req->in.vwv, VWV(7));
1305
1306         if (!req_pull_blob(&req->in.bufinfo, req->in.hdr + param_ofs, param_count, &params) ||
1307             !req_pull_blob(&req->in.bufinfo, req->in.hdr + data_ofs, data_count, &data)) {
1308                 smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
1309                 return;
1310         }
1311
1312         /* only allow contiguous requests */
1313         if ((param_count != 0 &&
1314              param_disp != trans->in.params.length) ||
1315             (data_count != 0 &&
1316              data_disp != trans->in.data.length)) {
1317                 smbsrv_send_error(req, NT_STATUS_INVALID_PARAMETER);
1318                 return;
1319         }
1320
1321         /* add to the existing request */
1322         if (param_count != 0) {
1323                 trans->in.params.data = talloc_realloc(trans,
1324                                                          trans->in.params.data,
1325                                                          uint8_t,
1326                                                          param_disp + param_count);
1327                 if (trans->in.params.data == NULL) {
1328                         goto failed;
1329                 }
1330                 trans->in.params.length = param_disp + param_count;
1331         }
1332
1333         if (data_count != 0) {
1334                 trans->in.data.data = talloc_realloc(trans,
1335                                                        trans->in.data.data,
1336                                                        uint8_t,
1337                                                        data_disp + data_count);
1338                 if (trans->in.data.data == NULL) {
1339                         goto failed;
1340                 }
1341                 trans->in.data.length = data_disp + data_count;
1342         }
1343
1344         memcpy(trans->in.params.data + param_disp, params.data, params.length);
1345         memcpy(trans->in.data.data + data_disp, data.data, data.length);
1346
1347         /* the sequence number of the reply is taken from the last secondary
1348            response */
1349         tp->req->seq_num = req->seq_num;
1350
1351         /* we don't reply to Transs2 requests */
1352         talloc_free(req);
1353
1354         if (trans->in.params.length == param_total &&
1355             trans->in.data.length == data_total) {
1356                 /* its now complete */
1357                 DLIST_REMOVE(tp->req->smb_conn->trans_partial, tp);
1358                 reply_trans_complete(tp->req, command, trans);
1359         }
1360         return;
1361
1362 failed:
1363         smbsrv_send_error(tp->req, NT_STATUS_NO_MEMORY);
1364         DLIST_REMOVE(req->smb_conn->trans_partial, tp);
1365         talloc_free(req);
1366         talloc_free(tp);
1367 }
1368
1369
1370 /*
1371   Reply to an SMBtrans2
1372 */
1373 void smbsrv_reply_trans2(struct smbsrv_request *req)
1374 {
1375         reply_trans_generic(req, SMBtrans2);
1376 }
1377
1378 /*
1379   Reply to an SMBtrans
1380 */
1381 void smbsrv_reply_trans(struct smbsrv_request *req)
1382 {
1383         reply_trans_generic(req, SMBtrans);
1384 }
1385
1386 /*
1387   Reply to an SMBtranss request
1388 */
1389 void smbsrv_reply_transs(struct smbsrv_request *req)
1390 {
1391         reply_transs_generic(req, SMBtrans);
1392 }
1393
1394 /*
1395   Reply to an SMBtranss2 request
1396 */
1397 void smbsrv_reply_transs2(struct smbsrv_request *req)
1398 {
1399         reply_transs_generic(req, SMBtrans2);
1400 }